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diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle index a667eb1fc26e..7f1730f1a1ae 100644 --- a/Documentation/CodingStyle +++ b/Documentation/CodingStyle @@ -633,12 +633,27 @@ covers RTL which is used frequently with assembly language in the kernel. Kernel developers like to be seen as literate. Do mind the spelling of kernel messages to make a good impression. Do not use crippled -words like "dont" and use "do not" or "don't" instead. +words like "dont"; use "do not" or "don't" instead. Make the messages +concise, clear, and unambiguous. Kernel messages do not have to be terminated with a period. Printing numbers in parentheses (%d) adds no value and should be avoided. +There are a number of driver model diagnostic macros in <linux/device.h> +which you should use to make sure messages are matched to the right device +and driver, and are tagged with the right level: dev_err(), dev_warn(), +dev_info(), and so forth. For messages that aren't associated with a +particular device, <linux/kernel.h> defines pr_debug() and pr_info(). + +Coming up with good debugging messages can be quite a challenge; and once +you have them, they can be a huge help for remote troubleshooting. Such +messages should be compiled out when the DEBUG symbol is not defined (that +is, by default they are not included). When you use dev_dbg() or pr_debug(), +that's automatic. Many subsystems have Kconfig options to turn on -DDEBUG. +A related convention uses VERBOSE_DEBUG to add dev_vdbg() messages to the +ones already enabled by DEBUG. + Chapter 14: Allocating memory @@ -790,4 +805,5 @@ Kernel CodingStyle, by greg@kroah.com at OLS 2002: http://www.kroah.com/linux/talks/ols_2002_kernel_codingstyle_talk/html/ -- -Last updated on 2006-December-06. +Last updated on 2007-July-13. + diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 6fd1646d3204..08687e45e19d 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -15,11 +15,11 @@ DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \ ### # The build process is as follows (targets): -# (xmldocs) -# file.tmpl --> file.xml +--> file.ps (psdocs) -# +--> file.pdf (pdfdocs) -# +--> DIR=file (htmldocs) -# +--> man/ (mandocs) +# (xmldocs) [by docproc] +# file.tmpl --> file.xml +--> file.ps (psdocs) [by db2ps or xmlto] +# +--> file.pdf (pdfdocs) [by db2pdf or xmlto] +# +--> DIR=file (htmldocs) [by xmlto] +# +--> man/ (mandocs) [by xmlto] # for PDF and PS output you can choose between xmlto and docbook-utils tools diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl index 46bcff2849bd..eb42bf9847cb 100644 --- a/Documentation/DocBook/kernel-api.tmpl +++ b/Documentation/DocBook/kernel-api.tmpl @@ -139,8 +139,10 @@ X!Ilib/string.c !Elib/cmdline.c </sect1> - <sect1><title>CRC Functions</title> + <sect1 id="crc"><title>CRC Functions</title> +!Elib/crc7.c !Elib/crc16.c +!Elib/crc-itu-t.c !Elib/crc32.c !Elib/crc-ccitt.c </sect1> @@ -157,7 +159,6 @@ X!Ilib/string.c !Earch/i386/lib/usercopy.c </sect1> <sect1><title>More Memory Management Functions</title> -!Iinclude/linux/rmap.h !Emm/readahead.c !Emm/filemap.c !Emm/memory.c @@ -406,6 +407,10 @@ X!Edrivers/pnp/system.c !Edrivers/pnp/manager.c !Edrivers/pnp/support.c </sect1> + <sect1><title>Userspace IO devices</title> +!Edrivers/uio/uio.c +!Iinclude/linux/uio_driver.h + </sect1> </chapter> <chapter id="blkdev"> diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl new file mode 100644 index 000000000000..e3bb29a8d8dd --- /dev/null +++ b/Documentation/DocBook/uio-howto.tmpl @@ -0,0 +1,611 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" +"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" []> + +<book id="index"> +<bookinfo> +<title>The Userspace I/O HOWTO</title> + +<author> + <firstname>Hans-Jürgen</firstname> + <surname>Koch</surname> + <authorblurb><para>Linux developer, Linutronix</para></authorblurb> + <affiliation> + <orgname> + <ulink url="http://www.linutronix.de">Linutronix</ulink> + </orgname> + + <address> + <email>hjk@linutronix.de</email> + </address> + </affiliation> +</author> + +<pubdate>2006-12-11</pubdate> + +<abstract> + <para>This HOWTO describes concept and usage of Linux kernel's + Userspace I/O system.</para> +</abstract> + +<revhistory> + <revision> + <revnumber>0.3</revnumber> + <date>2007-04-29</date> + <authorinitials>hjk</authorinitials> + <revremark>Added section about userspace drivers.</revremark> + </revision> + <revision> + <revnumber>0.2</revnumber> + <date>2007-02-13</date> + <authorinitials>hjk</authorinitials> + <revremark>Update after multiple mappings were added.</revremark> + </revision> + <revision> + <revnumber>0.1</revnumber> + <date>2006-12-11</date> + <authorinitials>hjk</authorinitials> + <revremark>First draft.</revremark> + </revision> +</revhistory> +</bookinfo> + +<chapter id="aboutthisdoc"> +<?dbhtml filename="about.html"?> +<title>About this document</title> + +<sect1 id="copyright"> +<?dbhtml filename="copyright.html"?> +<title>Copyright and License</title> +<para> + Copyright (c) 2006 by Hans-Jürgen Koch.</para> +<para> +This documentation is Free Software licensed under the terms of the +GPL version 2. +</para> +</sect1> + +<sect1 id="translations"> +<?dbhtml filename="translations.html"?> +<title>Translations</title> + +<para>If you know of any translations for this document, or you are +interested in translating it, please email me +<email>hjk@linutronix.de</email>. +</para> +</sect1> + +<sect1 id="preface"> +<title>Preface</title> + <para> + For many types of devices, creating a Linux kernel driver is + overkill. All that is really needed is some way to handle an + interrupt and provide access to the memory space of the + device. The logic of controlling the device does not + necessarily have to be within the kernel, as the device does + not need to take advantage of any of other resources that the + kernel provides. One such common class of devices that are + like this are for industrial I/O cards. + </para> + <para> + To address this situation, the userspace I/O system (UIO) was + designed. For typical industrial I/O cards, only a very small + kernel module is needed. The main part of the driver will run in + user space. This simplifies development and reduces the risk of + serious bugs within a kernel module. + </para> +</sect1> + +<sect1 id="thanks"> +<title>Acknowledgments</title> + <para>I'd like to thank Thomas Gleixner and Benedikt Spranger of + Linutronix, who have not only written most of the UIO code, but also + helped greatly writing this HOWTO by giving me all kinds of background + information.</para> +</sect1> + +<sect1 id="feedback"> +<title>Feedback</title> + <para>Find something wrong with this document? (Or perhaps something + right?) I would love to hear from you. Please email me at + <email>hjk@linutronix.de</email>.</para> +</sect1> +</chapter> + +<chapter id="about"> +<?dbhtml filename="about.html"?> +<title>About UIO</title> + +<para>If you use UIO for your card's driver, here's what you get:</para> + +<itemizedlist> +<listitem> + <para>only one small kernel module to write and maintain.</para> +</listitem> +<listitem> + <para>develop the main part of your driver in user space, + with all the tools and libraries you're used to.</para> +</listitem> +<listitem> + <para>bugs in your driver won't crash the kernel.</para> +</listitem> +<listitem> + <para>updates of your driver can take place without recompiling + the kernel.</para> +</listitem> +<listitem> + <para>if you need to keep some parts of your driver closed source, + you can do so without violating the GPL license on the kernel.</para> +</listitem> +</itemizedlist> + +<sect1 id="how_uio_works"> +<title>How UIO works</title> + <para> + Each UIO device is accessed through a device file and several + sysfs attribute files. The device file will be called + <filename>/dev/uio0</filename> for the first device, and + <filename>/dev/uio1</filename>, <filename>/dev/uio2</filename> + and so on for subsequent devices. + </para> + + <para><filename>/dev/uioX</filename> is used to access the + address space of the card. Just use + <function>mmap()</function> to access registers or RAM + locations of your card. + </para> + + <para> + Interrupts are handled by reading from + <filename>/dev/uioX</filename>. A blocking + <function>read()</function> from + <filename>/dev/uioX</filename> will return as soon as an + interrupt occurs. You can also use + <function>select()</function> on + <filename>/dev/uioX</filename> to wait for an interrupt. The + integer value read from <filename>/dev/uioX</filename> + represents the total interrupt count. You can use this number + to figure out if you missed some interrupts. + </para> + + <para> + To handle interrupts properly, your custom kernel module can + provide its own interrupt handler. It will automatically be + called by the built-in handler. + </para> + + <para> + For cards that don't generate interrupts but need to be + polled, there is the possibility to set up a timer that + triggers the interrupt handler at configurable time intervals. + See <filename>drivers/uio/uio_dummy.c</filename> for an + example of this technique. + </para> + + <para> + Each driver provides attributes that are used to read or write + variables. These attributes are accessible through sysfs + files. A custom kernel driver module can add its own + attributes to the device owned by the uio driver, but not added + to the UIO device itself at this time. This might change in the + future if it would be found to be useful. + </para> + + <para> + The following standard attributes are provided by the UIO + framework: + </para> +<itemizedlist> +<listitem> + <para> + <filename>name</filename>: The name of your device. It is + recommended to use the name of your kernel module for this. + </para> +</listitem> +<listitem> + <para> + <filename>version</filename>: A version string defined by your + driver. This allows the user space part of your driver to deal + with different versions of the kernel module. + </para> +</listitem> +<listitem> + <para> + <filename>event</filename>: The total number of interrupts + handled by the driver since the last time the device node was + read. + </para> +</listitem> +</itemizedlist> +<para> + These attributes appear under the + <filename>/sys/class/uio/uioX</filename> directory. Please + note that this directory might be a symlink, and not a real + directory. Any userspace code that accesses it must be able + to handle this. +</para> +<para> + Each UIO device can make one or more memory regions available for + memory mapping. This is necessary because some industrial I/O cards + require access to more than one PCI memory region in a driver. +</para> +<para> + Each mapping has its own directory in sysfs, the first mapping + appears as <filename>/sys/class/uio/uioX/maps/map0/</filename>. + Subsequent mappings create directories <filename>map1/</filename>, + <filename>map2/</filename>, and so on. These directories will only + appear if the size of the mapping is not 0. +</para> +<para> + Each <filename>mapX/</filename> directory contains two read-only files + that show start address and size of the memory: +</para> +<itemizedlist> +<listitem> + <para> + <filename>addr</filename>: The address of memory that can be mapped. + </para> +</listitem> +<listitem> + <para> + <filename>size</filename>: The size, in bytes, of the memory + pointed to by addr. + </para> +</listitem> +</itemizedlist> + +<para> + From userspace, the different mappings are distinguished by adjusting + the <varname>offset</varname> parameter of the + <function>mmap()</function> call. To map the memory of mapping N, you + have to use N times the page size as your offset: +</para> +<programlisting format="linespecific"> +offset = N * getpagesize(); +</programlisting> + +</sect1> +</chapter> + +<chapter id="using-uio_dummy" xreflabel="Using uio_dummy"> +<?dbhtml filename="using-uio_dummy.html"?> +<title>Using uio_dummy</title> + <para> + Well, there is no real use for uio_dummy. Its only purpose is + to test most parts of the UIO system (everything except + hardware interrupts), and to serve as an example for the + kernel module that you will have to write yourself. + </para> + +<sect1 id="what_uio_dummy_does"> +<title>What uio_dummy does</title> + <para> + The kernel module <filename>uio_dummy.ko</filename> creates a + device that uses a timer to generate periodic interrupts. The + interrupt handler does nothing but increment a counter. The + driver adds two custom attributes, <varname>count</varname> + and <varname>freq</varname>, that appear under + <filename>/sys/devices/platform/uio_dummy/</filename>. + </para> + + <para> + The attribute <varname>count</varname> can be read and + written. The associated file + <filename>/sys/devices/platform/uio_dummy/count</filename> + appears as a normal text file and contains the total number of + timer interrupts. If you look at it (e.g. using + <function>cat</function>), you'll notice it is slowly counting + up. + </para> + + <para> + The attribute <varname>freq</varname> can be read and written. + The content of + <filename>/sys/devices/platform/uio_dummy/freq</filename> + represents the number of system timer ticks between two timer + interrupts. The default value of <varname>freq</varname> is + the value of the kernel variable <varname>HZ</varname>, which + gives you an interval of one second. Lower values will + increase the frequency. Try the following: + </para> +<programlisting format="linespecific"> +cd /sys/devices/platform/uio_dummy/ +echo 100 > freq +</programlisting> + <para> + Use <function>cat count</function> to see how the interrupt + frequency changes. + </para> +</sect1> +</chapter> + +<chapter id="custom_kernel_module" xreflabel="Writing your own kernel module"> +<?dbhtml filename="custom_kernel_module.html"?> +<title>Writing your own kernel module</title> + <para> + Please have a look at <filename>uio_dummy.c</filename> as an + example. The following paragraphs explain the different + sections of this file. + </para> + +<sect1 id="uio_info"> +<title>struct uio_info</title> + <para> + This structure tells the framework the details of your driver, + Some of the members are required, others are optional. + </para> + +<itemizedlist> +<listitem><para> +<varname>char *name</varname>: Required. The name of your driver as +it will appear in sysfs. I recommend using the name of your module for this. +</para></listitem> + +<listitem><para> +<varname>char *version</varname>: Required. This string appears in +<filename>/sys/class/uio/uioX/version</filename>. +</para></listitem> + +<listitem><para> +<varname>struct uio_mem mem[ MAX_UIO_MAPS ]</varname>: Required if you +have memory that can be mapped with <function>mmap()</function>. For each +mapping you need to fill one of the <varname>uio_mem</varname> structures. +See the description below for details. +</para></listitem> + +<listitem><para> +<varname>long irq</varname>: Required. If your hardware generates an +interrupt, it's your modules task to determine the irq number during +initialization. If you don't have a hardware generated interrupt but +want to trigger the interrupt handler in some other way, set +<varname>irq</varname> to <varname>UIO_IRQ_CUSTOM</varname>. The +uio_dummy module does this as it triggers the event mechanism in a timer +routine. If you had no interrupt at all, you could set +<varname>irq</varname> to <varname>UIO_IRQ_NONE</varname>, though this +rarely makes sense. +</para></listitem> + +<listitem><para> +<varname>unsigned long irq_flags</varname>: Required if you've set +<varname>irq</varname> to a hardware interrupt number. The flags given +here will be used in the call to <function>request_irq()</function>. +</para></listitem> + +<listitem><para> +<varname>int (*mmap)(struct uio_info *info, struct vm_area_struct +*vma)</varname>: Optional. If you need a special +<function>mmap()</function> function, you can set it here. If this +pointer is not NULL, your <function>mmap()</function> will be called +instead of the built-in one. +</para></listitem> + +<listitem><para> +<varname>int (*open)(struct uio_info *info, struct inode *inode) +</varname>: Optional. You might want to have your own +<function>open()</function>, e.g. to enable interrupts only when your +device is actually used. +</para></listitem> + +<listitem><para> +<varname>int (*release)(struct uio_info *info, struct inode *inode) +</varname>: Optional. If you define your own +<function>open()</function>, you will probably also want a custom +<function>release()</function> function. +</para></listitem> +</itemizedlist> + +<para> +Usually, your device will have one or more memory regions that can be mapped +to user space. For each region, you have to set up a +<varname>struct uio_mem</varname> in the <varname>mem[]</varname> array. +Here's a description of the fields of <varname>struct uio_mem</varname>: +</para> + +<itemizedlist> +<listitem><para> +<varname>int memtype</varname>: Required if the mapping is used. Set this to +<varname>UIO_MEM_PHYS</varname> if you you have physical memory on your +card to be mapped. Use <varname>UIO_MEM_LOGICAL</varname> for logical +memory (e.g. allocated with <function>kmalloc()</function>). There's also +<varname>UIO_MEM_VIRTUAL</varname> for virtual memory. +</para></listitem> + +<listitem><para> +<varname>unsigned long addr</varname>: Required if the mapping is used. +Fill in the address of your memory block. This address is the one that +appears in sysfs. +</para></listitem> + +<listitem><para> +<varname>unsigned long size</varname>: Fill in the size of the +memory block that <varname>addr</varname> points to. If <varname>size</varname> +is zero, the mapping is considered unused. Note that you +<emphasis>must</emphasis> initialize <varname>size</varname> with zero for +all unused mappings. +</para></listitem> + +<listitem><para> +<varname>void *internal_addr</varname>: If you have to access this memory +region from within your kernel module, you will want to map it internally by +using something like <function>ioremap()</function>. Addresses +returned by this function cannot be mapped to user space, so you must not +store it in <varname>addr</varname>. Use <varname>internal_addr</varname> +instead to remember such an address. +</para></listitem> +</itemizedlist> + +<para> +Please do not touch the <varname>kobj</varname> element of +<varname>struct uio_mem</varname>! It is used by the UIO framework +to set up sysfs files for this mapping. Simply leave it alone. +</para> +</sect1> + +<sect1 id="adding_irq_handler"> +<title>Adding an interrupt handler</title> + <para> + What you need to do in your interrupt handler depends on your + hardware and on how you want to handle it. You should try to + keep the amount of code in your kernel interrupt handler low. + If your hardware requires no action that you + <emphasis>have</emphasis> to perform after each interrupt, + then your handler can be empty.</para> <para>If, on the other + hand, your hardware <emphasis>needs</emphasis> some action to + be performed after each interrupt, then you + <emphasis>must</emphasis> do it in your kernel module. Note + that you cannot rely on the userspace part of your driver. Your + userspace program can terminate at any time, possibly leaving + your hardware in a state where proper interrupt handling is + still required. + </para> + + <para> + There might also be applications where you want to read data + from your hardware at each interrupt and buffer it in a piece + of kernel memory you've allocated for that purpose. With this + technique you could avoid loss of data if your userspace + program misses an interrupt. + </para> + + <para> + A note on shared interrupts: Your driver should support + interrupt sharing whenever this is possible. It is possible if + and only if your driver can detect whether your hardware has + triggered the interrupt or not. This is usually done by looking + at an interrupt status register. If your driver sees that the + IRQ bit is actually set, it will perform its actions, and the + handler returns IRQ_HANDLED. If the driver detects that it was + not your hardware that caused the interrupt, it will do nothing + and return IRQ_NONE, allowing the kernel to call the next + possible interrupt handler. + </para> + + <para> + If you decide not to support shared interrupts, your card + won't work in computers with no free interrupts. As this + frequently happens on the PC platform, you can save yourself a + lot of trouble by supporting interrupt sharing. + </para> +</sect1> + +</chapter> + +<chapter id="userspace_driver" xreflabel="Writing a driver in user space"> +<?dbhtml filename="userspace_driver.html"?> +<title>Writing a driver in userspace</title> + <para> + Once you have a working kernel module for your hardware, you can + write the userspace part of your driver. You don't need any special + libraries, your driver can be written in any reasonable language, + you can use floating point numbers and so on. In short, you can + use all the tools and libraries you'd normally use for writing a + userspace application. + </para> + +<sect1 id="getting_uio_information"> +<title>Getting information about your UIO device</title> + <para> + Information about all UIO devices is available in sysfs. The + first thing you should do in your driver is check + <varname>name</varname> and <varname>version</varname> to + make sure your talking to the right device and that its kernel + driver has the version you expect. + </para> + <para> + You should also make sure that the memory mapping you need + exists and has the size you expect. + </para> + <para> + There is a tool called <varname>lsuio</varname> that lists + UIO devices and their attributes. It is available here: + </para> + <para> + <ulink url="http://www.osadl.org/projects/downloads/UIO/user/"> + http://www.osadl.org/projects/downloads/UIO/user/</ulink> + </para> + <para> + With <varname>lsuio</varname> you can quickly check if your + kernel module is loaded and which attributes it exports. + Have a look at the manpage for details. + </para> + <para> + The source code of <varname>lsuio</varname> can serve as an + example for getting information about an UIO device. + The file <filename>uio_helper.c</filename> contains a lot of + functions you could use in your userspace driver code. + </para> +</sect1> + +<sect1 id="mmap_device_memory"> +<title>mmap() device memory</title> + <para> + After you made sure you've got the right device with the + memory mappings you need, all you have to do is to call + <function>mmap()</function> to map the device's memory + to userspace. + </para> + <para> + The parameter <varname>offset</varname> of the + <function>mmap()</function> call has a special meaning + for UIO devices: It is used to select which mapping of + your device you want to map. To map the memory of + mapping N, you have to use N times the page size as + your offset: + </para> +<programlisting format="linespecific"> + offset = N * getpagesize(); +</programlisting> + <para> + N starts from zero, so if you've got only one memory + range to map, set <varname>offset = 0</varname>. + A drawback of this technique is that memory is always + mapped beginning with its start address. + </para> +</sect1> + +<sect1 id="wait_for_interrupts"> +<title>Waiting for interrupts</title> + <para> + After you successfully mapped your devices memory, you + can access it like an ordinary array. Usually, you will + perform some initialization. After that, your hardware + starts working and will generate an interrupt as soon + as it's finished, has some data available, or needs your + attention because an error occured. + </para> + <para> + <filename>/dev/uioX</filename> is a read-only file. A + <function>read()</function> will always block until an + interrupt occurs. There is only one legal value for the + <varname>count</varname> parameter of + <function>read()</function>, and that is the size of a + signed 32 bit integer (4). Any other value for + <varname>count</varname> causes <function>read()</function> + to fail. The signed 32 bit integer read is the interrupt + count of your device. If the value is one more than the value + you read the last time, everything is OK. If the difference + is greater than one, you missed interrupts. + </para> + <para> + You can also use <function>select()</function> on + <filename>/dev/uioX</filename>. + </para> +</sect1> + +</chapter> + +<appendix id="app1"> +<title>Further information</title> +<itemizedlist> + <listitem><para> + <ulink url="http://www.osadl.org"> + OSADL homepage.</ulink> + </para></listitem> + <listitem><para> + <ulink url="http://www.linutronix.de"> + Linutronix homepage.</ulink> + </para></listitem> +</itemizedlist> +</appendix> + +</book> diff --git a/Documentation/HOWTO b/Documentation/HOWTO index 98e2701c746f..f8cc3f8ed152 100644 --- a/Documentation/HOWTO +++ b/Documentation/HOWTO @@ -249,6 +249,9 @@ process is as follows: release a new -rc kernel every week. - Process continues until the kernel is considered "ready", the process should last around 6 weeks. + - A list of known regressions present in each -rc release is + tracked at the following URI: + http://kernelnewbies.org/known_regressions It is worth mentioning what Andrew Morton wrote on the linux-kernel mailing list about kernel releases: diff --git a/Documentation/connector/cn_test.c b/Documentation/connector/cn_test.c index 3e73231695b3..be7af146dd30 100644 --- a/Documentation/connector/cn_test.c +++ b/Documentation/connector/cn_test.c @@ -124,9 +124,8 @@ static void cn_test_timer_func(unsigned long __data) struct cn_msg *m; char data[32]; - m = kmalloc(sizeof(*m) + sizeof(data), GFP_ATOMIC); + m = kzalloc(sizeof(*m) + sizeof(data), GFP_ATOMIC); if (m) { - memset(m, 0, sizeof(*m) + sizeof(data)); memcpy(&m->id, &cn_test_id, sizeof(m->id)); m->seq = cn_test_timer_counter; diff --git a/Documentation/console/console.txt b/Documentation/console/console.txt index d3e17447321c..877a1b26cc3d 100644 --- a/Documentation/console/console.txt +++ b/Documentation/console/console.txt @@ -29,7 +29,7 @@ In newer kernels, the following are also available: If sysfs is enabled, the contents of /sys/class/vtconsole can be examined. This shows the console backends currently registered by the -system which are named vtcon<n> where <n> is an integer fro 0 to 15. Thus: +system which are named vtcon<n> where <n> is an integer from 0 to 15. Thus: ls /sys/class/vtconsole . .. vtcon0 vtcon1 diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 6c8d8f27db34..8569072fa387 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -207,7 +207,7 @@ responsibility. This is usually non-issue because bus ops and resource allocations already do the job. For an example of single-instance devres type, read pcim_iomap_table() -in lib/iomap.c. +in lib/devres.c. All devres interface functions can be called without context if the right gfp mask is given. diff --git a/Documentation/drivers/edac/edac.txt b/Documentation/drivers/edac/edac.txt index 3c5a9e4297b4..a5c36842ecef 100644 --- a/Documentation/drivers/edac/edac.txt +++ b/Documentation/drivers/edac/edac.txt @@ -2,22 +2,42 @@ EDAC - Error Detection And Correction -Written by Doug Thompson <norsk5@xmission.com> +Written by Doug Thompson <dougthompson@xmission.com> 7 Dec 2005 +17 Jul 2007 Updated -EDAC was written by: - Thayne Harbaugh, - modified by Dave Peterson, Doug Thompson, et al, - from the bluesmoke.sourceforge.net project. +EDAC is maintained and written by: + Doug Thompson, Dave Jiang, Dave Peterson et al, + original author: Thayne Harbaugh, + +Contact: + website: bluesmoke.sourceforge.net + mailing list: bluesmoke-devel@lists.sourceforge.net + +"bluesmoke" was the name for this device driver when it was "out-of-tree" +and maintained at sourceforge.net. When it was pushed into 2.6.16 for the +first time, it was renamed to 'EDAC'. + +The bluesmoke project at sourceforge.net is now utilized as a 'staging area' +for EDAC development, before it is sent upstream to kernel.org + +At the bluesmoke/EDAC project site, is a series of quilt patches against +recent kernels, stored in a SVN respository. For easier downloading, there +is also a tarball snapshot available. ============================================================================ EDAC PURPOSE The 'edac' kernel module goal is to detect and report errors that occur -within the computer system. In the initial release, memory Correctable Errors -(CE) and Uncorrectable Errors (UE) are the primary errors being harvested. +within the computer system running under linux. + +MEMORY + +In the initial release, memory Correctable Errors (CE) and Uncorrectable +Errors (UE) are the primary errors being harvested. These types of errors +are harvested by the 'edac_mc' class of device. Detecting CE events, then harvesting those events and reporting them, CAN be a predictor of future UE events. With CE events, the system can @@ -25,9 +45,27 @@ continue to operate, but with less safety. Preventive maintenance and proactive part replacement of memory DIMMs exhibiting CEs can reduce the likelihood of the dreaded UE events and system 'panics'. +NON-MEMORY + +A new feature for EDAC, the edac_device class of device, was added in +the 2.6.23 version of the kernel. + +This new device type allows for non-memory type of ECC hardware detectors +to have their states harvested and presented to userspace via the sysfs +interface. + +Some architectures have ECC detectors for L1, L2 and L3 caches, along with DMA +engines, fabric switches, main data path switches, interconnections, +and various other hardware data paths. If the hardware reports it, then +a edac_device device probably can be constructed to harvest and present +that to userspace. + + +PCI BUS SCANNING In addition, PCI Bus Parity and SERR Errors are scanned for on PCI devices in order to determine if errors are occurring on data transfers. + The presence of PCI Parity errors must be examined with a grain of salt. There are several add-in adapters that do NOT follow the PCI specification with regards to Parity generation and reporting. The specification says @@ -35,11 +73,17 @@ the vendor should tie the parity status bits to 0 if they do not intend to generate parity. Some vendors do not do this, and thus the parity bit can "float" giving false positives. -[There are patches in the kernel queue which will allow for storage of -quirks of PCI devices reporting false parity positives. The 2.6.18 -kernel should have those patches included. When that becomes available, -then EDAC will be patched to utilize that information to "skip" such -devices.] +In the kernel there is a pci device attribute located in sysfs that is +checked by the EDAC PCI scanning code. If that attribute is set, +PCI parity/error scannining is skipped for that device. The attribute +is: + + broken_parity_status + +as is located in /sys/devices/pci<XXX>/0000:XX:YY.Z directorys for +PCI devices. + +FUTURE HARDWARE SCANNING EDAC will have future error detectors that will be integrated with EDAC or added to it, in the following list: @@ -57,13 +101,14 @@ and the like. ============================================================================ EDAC VERSIONING -EDAC is composed of a "core" module (edac_mc.ko) and several Memory +EDAC is composed of a "core" module (edac_core.ko) and several Memory Controller (MC) driver modules. On a given system, the CORE is loaded and one MC driver will be loaded. Both the CORE and -the MC driver have individual versions that reflect current release -level of their respective modules. Thus, to "report" on what version -a system is running, one must report both the CORE's and the -MC driver's versions. +the MC driver (or edac_device driver) have individual versions that reflect +current release level of their respective modules. + +Thus, to "report" on what version a system is running, one must report both +the CORE's and the MC driver's versions. LOADING @@ -88,8 +133,9 @@ EDAC sysfs INTERFACE EDAC presents a 'sysfs' interface for control, reporting and attribute reporting purposes. -EDAC lives in the /sys/devices/system/edac directory. Within this directory -there currently reside 2 'edac' components: +EDAC lives in the /sys/devices/system/edac directory. + +Within this directory there currently reside 2 'edac' components: mc memory controller(s) system pci PCI control and status system @@ -188,7 +234,7 @@ In directory 'mc' are EDAC system overall control and attribute files: Panic on UE control file: - 'panic_on_ue' + 'edac_mc_panic_on_ue' An uncorrectable error will cause a machine panic. This is usually desirable. It is a bad idea to continue when an uncorrectable error @@ -199,12 +245,12 @@ Panic on UE control file: LOAD TIME: module/kernel parameter: panic_on_ue=[0|1] - RUN TIME: echo "1" >/sys/devices/system/edac/mc/panic_on_ue + RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_panic_on_ue Log UE control file: - 'log_ue' + 'edac_mc_log_ue' Generate kernel messages describing uncorrectable errors. These errors are reported through the system message log system. UE statistics @@ -212,12 +258,12 @@ Log UE control file: LOAD TIME: module/kernel parameter: log_ue=[0|1] - RUN TIME: echo "1" >/sys/devices/system/edac/mc/log_ue + RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_log_ue Log CE control file: - 'log_ce' + 'edac_mc_log_ce' Generate kernel messages describing correctable errors. These errors are reported through the system message log system. @@ -225,12 +271,12 @@ Log CE control file: LOAD TIME: module/kernel parameter: log_ce=[0|1] - RUN TIME: echo "1" >/sys/devices/system/edac/mc/log_ce + RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_log_ce Polling period control file: - 'poll_msec' + 'edac_mc_poll_msec' The time period, in milliseconds, for polling for error information. Too small a value wastes resources. Too large a value might delay @@ -241,7 +287,7 @@ Polling period control file: LOAD TIME: module/kernel parameter: poll_msec=[0|1] - RUN TIME: echo "1000" >/sys/devices/system/edac/mc/poll_msec + RUN TIME: echo "1000" >/sys/devices/system/edac/mc/edac_mc_poll_msec ============================================================================ @@ -587,3 +633,95 @@ Parity Count: ======================================================================= + + +EDAC_DEVICE type of device + +In the header file, edac_core.h, there is a series of edac_device structures +and APIs for the EDAC_DEVICE. + +User space access to an edac_device is through the sysfs interface. + +At the location /sys/devices/system/edac (sysfs) new edac_device devices will +appear. + +There is a three level tree beneath the above 'edac' directory. For example, +the 'test_device_edac' device (found at the bluesmoke.sourceforget.net website) +installs itself as: + + /sys/devices/systm/edac/test-instance + +in this directory are various controls, a symlink and one or more 'instance' +directorys. + +The standard default controls are: + + log_ce boolean to log CE events + log_ue boolean to log UE events + panic_on_ue boolean to 'panic' the system if an UE is encountered + (default off, can be set true via startup script) + poll_msec time period between POLL cycles for events + +The test_device_edac device adds at least one of its own custom control: + + test_bits which in the current test driver does nothing but + show how it is installed. A ported driver can + add one or more such controls and/or attributes + for specific uses. + One out-of-tree driver uses controls here to allow + for ERROR INJECTION operations to hardware + injection registers + +The symlink points to the 'struct dev' that is registered for this edac_device. + +INSTANCES + +One or more instance directories are present. For the 'test_device_edac' case: + + test-instance0 + + +In this directory there are two default counter attributes, which are totals of +counter in deeper subdirectories. + + ce_count total of CE events of subdirectories + ue_count total of UE events of subdirectories + +BLOCKS + +At the lowest directory level is the 'block' directory. There can be 0, 1 +or more blocks specified in each instance. + + test-block0 + + +In this directory the default attributes are: + + ce_count which is counter of CE events for this 'block' + of hardware being monitored + ue_count which is counter of UE events for this 'block' + of hardware being monitored + + +The 'test_device_edac' device adds 4 attributes and 1 control: + + test-block-bits-0 for every POLL cycle this counter + is incremented + test-block-bits-1 every 10 cycles, this counter is bumped once, + and test-block-bits-0 is set to 0 + test-block-bits-2 every 100 cycles, this counter is bumped once, + and test-block-bits-1 is set to 0 + test-block-bits-3 every 1000 cycles, this counter is bumped once, + and test-block-bits-2 is set to 0 + + + reset-counters writing ANY thing to this control will + reset all the above counters. + + +Use of the 'test_device_edac' driver should any others to create their own +unique drivers for their hardware systems. + +The 'test_device_edac' sample driver is located at the +bluesmoke.sourceforge.net project site for EDAC. + diff --git a/Documentation/dvb/bt8xx.txt b/Documentation/dvb/bt8xx.txt index 4e7614e606c5..ecb47adda063 100644 --- a/Documentation/dvb/bt8xx.txt +++ b/Documentation/dvb/bt8xx.txt @@ -9,19 +9,29 @@ for accessing the i2c bus and the gpio pins of the bt8xx chipset. Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge: Compiling kernel please enable: -a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "BT848 Video For Linux" -b.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" - => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards" +a.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Enable Video for Linux API 1 (DEPRECATED)" +b.)"Device drivers" => "Multimedia devices" => "Video For Linux" => "Video Capture Adapters" => "BT848 Video For Linux" +c.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" => "DVB for Linux" "DVB Core Support" "Bt8xx based PCI Cards" -2) Loading Modules -================== +Please use the following options with care as deselection of drivers which are in fact necessary +may result in DVB devices that cannot be tuned due to lack of driver support: +You can save RAM by deselecting every frontend module that your DVB card does not need. + +First please remove the static dependency of DVB card drivers on all frontend modules for all possible card variants by enabling: +d.) "Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" + => "DVB for Linux" "DVB Core Support" "Load and attach frontend modules as needed" -In default cases bttv is loaded automatically. -To load the backend either place dvb-bt8xx in etc/modules, or apply manually: +If you know the frontend driver that your card needs please enable: +e.)"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices" + => "DVB for Linux" "DVB Core Support" "Customise DVB Frontends" => "Customise the frontend modules to build" + Then please select your card-specific frontend module. - $ modprobe dvb-bt8xx +2) Loading Modules +================== -All frontends will be loaded automatically. +Regular case: If the bttv driver detects a bt8xx-based DVB card, all frontend and backend modules will be loaded automatically. +Exceptions are: +- Old TwinHan DST cards or clones with or without CA slot and not containing an Eeprom. People running udev please see Documentation/dvb/udev.txt. In the following cases overriding the PCI type detection for dvb-bt8xx might be necessary: @@ -30,7 +40,6 @@ In the following cases overriding the PCI type detection for dvb-bt8xx might be ------------------------------ $ modprobe bttv card=113 - $ modprobe dvb-bt8xx $ modprobe dst Useful parameters for verbosity level and debugging the dst module: @@ -65,10 +74,9 @@ DViCO FusionHDTV 5 Lite: 135 Notice: The order of the card ID should be uprising: Example: $ modprobe bttv card=113 card=135 - $ modprobe dvb-bt8xx For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv. -In case of further problems send questions to the mailing list: www.linuxdvb.org. +In case of further problems please subscribe and send questions to the mailing list: linux-dvb@linuxtv.org. Authors: Richard Walker, Jamie Honan, diff --git a/Documentation/dvb/get_dvb_firmware b/Documentation/dvb/get_dvb_firmware index 4820366b6ae8..b4d306ae9234 100644 --- a/Documentation/dvb/get_dvb_firmware +++ b/Documentation/dvb/get_dvb_firmware @@ -24,7 +24,8 @@ use IO::Handle; @components = ( "sp8870", "sp887x", "tda10045", "tda10046", "tda10046lifeview", "av7110", "dec2000t", "dec2540t", "dec3000s", "vp7041", "dibusb", "nxt2002", "nxt2004", - "or51211", "or51132_qam", "or51132_vsb", "bluebird"); + "or51211", "or51132_qam", "or51132_vsb", "bluebird", + "opera1"); # Check args syntax() if (scalar(@ARGV) != 1); @@ -56,7 +57,7 @@ syntax(); sub sp8870 { my $sourcefile = "tt_Premium_217g.zip"; - my $url = "http://www.technotrend.de/new/217g/$sourcefile"; + my $url = "http://www.softwarepatch.pl/9999ccd06a4813cb827dbb0005071c71/$sourcefile"; my $hash = "53970ec17a538945a6d8cb608a7b3899"; my $outfile = "dvb-fe-sp8870.fw"; my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1); @@ -210,6 +211,45 @@ sub dec3000s { $outfile; } +sub opera1{ + my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 0); + + checkstandard(); + my $fwfile1="dvb-usb-opera1-fpga-01.fw"; + my $fwfile2="dvb-usb-opera-01.fw"; + extract("2830SCap2.sys", 0x62e8, 55024, "$tmpdir/opera1-fpga.fw"); + extract("2830SLoad2.sys",0x3178,0x3685-0x3178,"$tmpdir/fw1part1"); + extract("2830SLoad2.sys",0x0980,0x3150-0x0980,"$tmpdir/fw1part2"); + delzero("$tmpdir/fw1part1","$tmpdir/fw1part1-1"); + delzero("$tmpdir/fw1part2","$tmpdir/fw1part2-1"); + verify("$tmpdir/fw1part1-1","5e0909858fdf0b5b09ad48b9fe622e70"); + verify("$tmpdir/fw1part2-1","d6e146f321427e931df2c6fcadac37a1"); + verify("$tmpdir/opera1-fpga.fw","0f8133f5e9051f5f3c1928f7e5a1b07d"); + + my $RES1="\x01\x92\x7f\x00\x01\x00"; + my $RES0="\x01\x92\x7f\x00\x00\x00"; + my $DAT1="\x01\x00\xe6\x00\x01\x00"; + my $DAT0="\x01\x00\xe6\x00\x00\x00"; + open FW,">$tmpdir/opera.fw"; + print FW "$RES1"; + print FW "$DAT1"; + print FW "$RES1"; + print FW "$DAT1"; + appendfile(FW,"$tmpdir/fw1part1-1"); + print FW "$RES0"; + print FW "$DAT0"; + print FW "$RES1"; + print FW "$DAT1"; + appendfile(FW,"$tmpdir/fw1part2-1"); + print FW "$RES1"; + print FW "$DAT1"; + print FW "$RES0"; + print FW "$DAT0"; + copy ("$tmpdir/opera1-fpga.fw",$fwfile1); + copy ("$tmpdir/opera.fw",$fwfile2); + + $fwfile1.",".$fwfile2; +} sub vp7041 { my $sourcefile = "2.422.zip"; @@ -440,6 +480,25 @@ sub appendfile { close(INFILE); } +sub delzero{ + my ($infile,$outfile) =@_; + + open INFILE,"<$infile"; + open OUTFILE,">$outfile"; + while (1){ + $rcount=sysread(INFILE,$buf,22); + $len=ord(substr($buf,0,1)); + print OUTFILE substr($buf,0,1); + print OUTFILE substr($buf,2,$len+3); + last if ($rcount<1); + printf OUTFILE "%c",0; +#print $len." ".length($buf)."\n"; + + } + close(INFILE); + close(OUTFILE); +} + sub syntax() { print STDERR "syntax: get_dvb_firmware <component>\n"; print STDERR "Supported components:\n"; diff --git a/Documentation/dvb/opera-firmware.txt b/Documentation/dvb/opera-firmware.txt new file mode 100644 index 000000000000..93e784c2607b --- /dev/null +++ b/Documentation/dvb/opera-firmware.txt @@ -0,0 +1,27 @@ +To extract the firmware for the Opera DVB-S1 USB-Box +you need to copy the files: + +2830SCap2.sys +2830SLoad2.sys + +from the windriver disk into this directory. + +Then run + +./get_dvb_firware opera1 + +and after that you have 2 files: + +dvb-usb-opera-01.fw +dvb-usb-opera1-fpga-01.fw + +in here. + +Copy them into /lib/firmware/ . + +After that the driver can load the firmware +(if you have enabled firmware loading +in kernel config and have hotplug running). + + +Marco Gittler <g.marco@freenet.de> \ No newline at end of file diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index d05e6243b4df..a9941544ed8e 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -26,9 +26,7 @@ Who: Hans Verkuil <hverkuil@xs4all.nl> and --------------------------- -What: /sys/devices/.../power/state - dev->power.power_state - dpm_runtime_{suspend,resume)() +What: dev->power.power_state When: July 2007 Why: Broken design for runtime control over driver power states, confusing driver-internal runtime power management with: mechanisms to support @@ -53,6 +51,7 @@ Who: David Miller <davem@davemloft.net> What: Video4Linux API 1 ioctls and video_decoder.h from Video devices. When: December 2006 Files: include/linux/video_decoder.h +Check: include/linux/video_decoder.h Why: V4L1 AP1 was replaced by V4L2 API. during migration from 2.4 to 2.6 series. The old API have lots of drawbacks and don't provide enough means to work with all video and audio standards. The newer API is @@ -86,7 +85,7 @@ Who: Dominik Brodowski <linux@brodo.de> What: remove EXPORT_SYMBOL(kernel_thread) When: August 2006 Files: arch/*/kernel/*_ksyms.c -Funcs: kernel_thread +Check: kernel_thread Why: kernel_thread is a low-level implementation detail. Drivers should use the <linux/kthread.h> API instead which shields them from implementation details and provides a higherlevel interface that @@ -137,6 +136,15 @@ Who: Greg Kroah-Hartman <gregkh@suse.de> --------------------------- +What: vm_ops.nopage +When: Soon, provided in-kernel callers have been converted +Why: This interface is replaced by vm_ops.fault, but it has been around + forever, is used by a lot of drivers, and doesn't cost much to + maintain. +Who: Nick Piggin <npiggin@suse.de> + +--------------------------- + What: Interrupt only SA_* flags When: September 2007 Why: The interrupt related SA_* flags are replaced by IRQF_* to move them @@ -310,3 +318,13 @@ Why: The arch/powerpc tree is the merged architecture for ppc32 and ppc64 Who: linuxppc-dev@ozlabs.org --------------------------- + +What: mthca driver's MSI support +When: January 2008 +Files: drivers/infiniband/hw/mthca/*.[ch] +Why: All mthca hardware also supports MSI-X, which provides + strictly more functionality than MSI. So there is no point in + having both MSI-X and MSI support in the driver. +Who: Roland Dreier <rolandd@cisco.com> + +--------------------------- diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index d866551be037..f0f825808ca4 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -510,13 +510,24 @@ More details about quota locking can be found in fs/dquot.c. prototypes: void (*open)(struct vm_area_struct*); void (*close)(struct vm_area_struct*); + int (*fault)(struct vm_area_struct*, struct vm_fault *); struct page *(*nopage)(struct vm_area_struct*, unsigned long, int *); + int (*page_mkwrite)(struct vm_area_struct *, struct page *); locking rules: - BKL mmap_sem + BKL mmap_sem PageLocked(page) open: no yes close: no yes +fault: no yes nopage: no yes +page_mkwrite: no yes no + + ->page_mkwrite() is called when a previously read-only page is +about to become writeable. The file system is responsible for +protecting against truncate races. Once appropriate action has been +taking to lock out truncate, the page range should be verified to be +within i_size. The page mapping should also be checked that it is not +NULL. ================================================================================ Dubious stuff diff --git a/Documentation/filesystems/configfs/configfs_example.c b/Documentation/filesystems/configfs/configfs_example.c index e56d49264b39..25151fd5c2c6 100644 --- a/Documentation/filesystems/configfs/configfs_example.c +++ b/Documentation/filesystems/configfs/configfs_example.c @@ -277,11 +277,10 @@ static struct config_item *simple_children_make_item(struct config_group *group, { struct simple_child *simple_child; - simple_child = kmalloc(sizeof(struct simple_child), GFP_KERNEL); + simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL); if (!simple_child) return NULL; - memset(simple_child, 0, sizeof(struct simple_child)); config_item_init_type_name(&simple_child->item, name, &simple_child_type); @@ -364,12 +363,11 @@ static struct config_group *group_children_make_group(struct config_group *group { struct simple_children *simple_children; - simple_children = kmalloc(sizeof(struct simple_children), + simple_children = kzalloc(sizeof(struct simple_children), GFP_KERNEL); if (!simple_children) return NULL; - memset(simple_children, 0, sizeof(struct simple_children)); config_group_init_type_name(&simple_children->group, name, &simple_children_type); diff --git a/Documentation/ecryptfs.txt b/Documentation/filesystems/ecryptfs.txt index 01d8a08351ac..01d8a08351ac 100644 --- a/Documentation/ecryptfs.txt +++ b/Documentation/filesystems/ecryptfs.txt diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 460b892d089e..4a37e25e694c 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -42,6 +42,7 @@ Table of Contents 2.12 /proc/<pid>/oom_adj - Adjust the oom-killer score 2.13 /proc/<pid>/oom_score - Display current oom-killer score 2.14 /proc/<pid>/io - Display the IO accounting fields + 2.15 /proc/<pid>/coredump_filter - Core dump filtering settings ------------------------------------------------------------------------------ Preface @@ -1065,6 +1066,13 @@ check the amount of free space (value is in seconds). Default settings are: 4, resume it if we have a value of 3 or more percent; consider information about the amount of free space valid for 30 seconds +audit_argv_kb +------------- + +The file contains a single value denoting the limit on the argv array size +for execve (in KiB). This limit is only applied when system call auditing for +execve is enabled, otherwise the value is ignored. + ctrl-alt-del ------------ @@ -1348,6 +1356,21 @@ nr_hugepages configures number of hugetlb page reserved for the system. hugetlb_shm_group contains group id that is allowed to create SysV shared memory segment using hugetlb page. +hugepages_treat_as_movable +-------------------------- + +This parameter is only useful when kernelcore= is specified at boot time to +create ZONE_MOVABLE for pages that may be reclaimed or migrated. Huge pages +are not movable so are not normally allocated from ZONE_MOVABLE. A non-zero +value written to hugepages_treat_as_movable allows huge pages to be allocated +from ZONE_MOVABLE. + +Once enabled, the ZONE_MOVABLE is treated as an area of memory the huge +pages pool can easily grow or shrink within. Assuming that applications are +not running that mlock() a lot of memory, it is likely the huge pages pool +can grow to the size of ZONE_MOVABLE by repeatedly entering the desired value +into nr_hugepages and triggering page reclaim. + laptop_mode ----------- @@ -2162,4 +2185,41 @@ those 64-bit counters, process A could see an intermediate result. More information about this can be found within the taskstats documentation in Documentation/accounting. +2.15 /proc/<pid>/coredump_filter - Core dump filtering settings +--------------------------------------------------------------- +When a process is dumped, all anonymous memory is written to a core file as +long as the size of the core file isn't limited. But sometimes we don't want +to dump some memory segments, for example, huge shared memory. Conversely, +sometimes we want to save file-backed memory segments into a core file, not +only the individual files. + +/proc/<pid>/coredump_filter allows you to customize which memory segments +will be dumped when the <pid> process is dumped. coredump_filter is a bitmask +of memory types. If a bit of the bitmask is set, memory segments of the +corresponding memory type are dumped, otherwise they are not dumped. + +The following 4 memory types are supported: + - (bit 0) anonymous private memory + - (bit 1) anonymous shared memory + - (bit 2) file-backed private memory + - (bit 3) file-backed shared memory + + Note that MMIO pages such as frame buffer are never dumped and vDSO pages + are always dumped regardless of the bitmask status. + +Default value of coredump_filter is 0x3; this means all anonymous memory +segments are dumped. + +If you don't want to dump all shared memory segments attached to pid 1234, +write 1 to the process's proc file. + + $ echo 0x1 > /proc/1234/coredump_filter + +When a new process is created, the process inherits the bitmask status from its +parent. It is useful to set up coredump_filter before the program runs. +For example: + + $ echo 0x7 > /proc/self/coredump_filter + $ ./some_program + ------------------------------------------------------------------------------ diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt index 36af58eba136..218a8650f48d 100644 --- a/Documentation/gpio.txt +++ b/Documentation/gpio.txt @@ -75,6 +75,9 @@ using the include file: If you stick to this convention then it'll be easier for other developers to see what your code is doing, and help maintain it. +Note that these operations include I/O barriers on platforms which need to +use them; drivers don't need to add them explicitly. + Identifying GPIOs ----------------- diff --git a/Documentation/ja_JP/HOWTO b/Documentation/ja_JP/HOWTO new file mode 100644 index 000000000000..b2446a090870 --- /dev/null +++ b/Documentation/ja_JP/HOWTO @@ -0,0 +1,650 @@ +NOTE: +This is Japanese translated version of "Documentation/HOWTO". +This one is maintained by Tsugikazu Shibata <tshibata@ab.jp.nec.com> +and JF Project team <www.linux.or.jp/JF>. +If you find difference with original file or problem in translation, +please contact maintainer of this file or JF project. + +Please also note that purpose of this file is easier to read for non +English natives and not to be intended to fork. So, if you have any +comments or updates of this file, please try to update Original(English) +file at first. + +Last Updated: 2007/06/04 +================================== +ã“ã‚Œã¯ã€ +linux-2.6.21/Documentation/HOWTO +ã®å’Œè¨³ã§ã™ã€‚ + +翻訳団体： JF プãƒã‚¸ã‚§ã‚¯ãƒˆ < http://www.linux.or.jp/JF/ > +翻訳日： 2007/06/04 +翻訳者： Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com> +æ ¡æ£è€…： æ¾å€‰ã•ã‚“ <nbh--mats at nifty dot com> + å°æž— é›…å…¸ã•ã‚“ (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp> + æ¦äº•ä¼¸å…‰ã•ã‚“ã€<takei at webmasters dot gr dot jp> + ã‹ãã“ã•ã‚“ (Seiji Kaneko) <skaneko at a2 dot mbn dot or dot jp> + 野å£ã•ã‚“ (Kenji Noguchi) <tokyo246 at gmail dot com> + 河内ã•ã‚“ (Takayoshi Kochi) <t-kochi at bq dot jp dot nec dot com> + 岩本ã•ã‚“ (iwamoto) <iwamoto.kn at ncos dot nec dot co dot jp> +================================== + +Linux カーãƒãƒ«é–‹ç™ºã®ã‚„ã‚Šæ–¹ +------------------------------- + +ã“ã‚Œã¯ä¸Šã®ãƒˆãƒ”ック( Linux カーãƒãƒ«é–‹ç™ºã®ã‚„ã‚Šæ–¹)ã®é‡è¦ãªäº‹æŸ„を網羅ã—㟠+ドã‚ュメントã§ã™ã€‚ã“ã“ã«ã¯ Linux カーãƒãƒ«é–‹ç™ºè€…ã«ãªã‚‹ãŸã‚ã®æ–¹æ³•ã¨ +Linux カーãƒãƒ«é–‹ç™ºã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã¨å…±ã«æ´»å‹•ã™ã‚‹ã‚„り方をå¦ã¶æ–¹æ³•ãŒå«ã¾ã‚Œã¦ +ã„ã¾ã™ã€‚カーãƒãƒ«ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã«é–¢ã™ã‚‹æŠ€è¡“çš„ãªé …ç›®ã«é–¢ã™ã‚‹ã“ã¨ã¯ä½•ã‚‚å« +ã‚ãªã„よã†ã«ã—ã¦ã„ã¾ã™ãŒã€ã‚«ãƒ¼ãƒãƒ«é–‹ç™ºè€…ã¨ãªã‚‹ãŸã‚ã®æ£ã—ã„æ–¹å‘ã«å‘ã‹ã† +手助ã‘ã«ãªã‚Šã¾ã™ã€‚ + +ã‚‚ã—ã€ã“ã®ãƒ‰ã‚ュメントã®ã©ã“ã‹ãŒå¤ããªã£ã¦ã„ãŸå ´åˆã«ã¯ã€ã“ã®ãƒ‰ã‚ュメン +トã®æœ€å¾Œã«ãƒªã‚¹ãƒˆã—ãŸãƒ¡ãƒ³ãƒ†ãƒŠãƒ¼ã«ãƒ‘ッãƒã‚’é€ã£ã¦ãã ã•ã„。 + +ã¯ã˜ã‚ã« +--------- + +ã‚ãªãŸã¯ã€€Linux カーãƒãƒ«ã®é–‹ç™ºè€…ã«ãªã‚‹æ–¹æ³•ã‚’å¦ã³ãŸã„ã®ã§ã—ょã†ã‹ï¼Ÿã€€ã +ã‚Œã¨ã‚‚ã‚ãªãŸã¯ä¸Šå¸ã‹ã‚‰ã€Œã“ã®ãƒ‡ãƒã‚¤ã‚¹ã® Linux ドライãƒã‚’書ãよã†ã«ã€ã¨ +言ã‚ã‚Œã¦ã„ã‚‹ã®ã§ã—ょã†ã‹ï¼Ÿã€€ +ã“ã®æ–‡æ›¸ã®ç›®çš„ã¯ã€ã‚ãªãŸãŒè¸ã‚€ã¹ãæ‰‹é †ã¨ã€ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã¨ä¸€ç·’ã«ã†ã¾ãåƒ +ãヒントを書ã下ã™ã“ã¨ã§ã€ã‚ãªãŸãŒçŸ¥ã‚‹ã¹ãå…¨ã¦ã®ã“ã¨ã‚’æ•™ãˆã‚‹ã“ã¨ã§ã™ã€‚ +ã¾ãŸã€ã“ã®ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ãŒãªãœä»Šã†ã¾ãã¾ã‚ã£ã¦ã„ã‚‹ã®ã‹ã¨ã„ã†ç†ç”±ã®ä¸€éƒ¨ã‚‚ +説明ã—よã†ã¨è©¦ã¿ã¦ã„ã¾ã™ã€‚ + +カーãƒãƒ«ã¯ å°‘é‡ã®ã‚¢ãƒ¼ã‚テクãƒãƒ£ä¾å˜éƒ¨åˆ†ãŒã‚¢ã‚»ãƒ³ãƒ–リ言語ã§æ›¸ã‹ã‚Œã¦ã„ã‚‹ +以外ã¯å¤§éƒ¨åˆ†ã¯ C 言語ã§æ›¸ã‹ã‚Œã¦ã„ã¾ã™ã€‚C言語をよãç†è§£ã—ã¦ã„ã‚‹ã“ã¨ã¯ã‚«ãƒ¼ +ãƒãƒ«é–‹ç™ºè€…ã«ã¯å¿…è¦ã§ã™ã€‚アーã‚テクãƒãƒ£å‘ã‘ã®ä½Žãƒ¬ãƒ™ãƒ«éƒ¨åˆ†ã®é–‹ç™ºã‚’ã™ã‚‹ã® +ã§ãªã‘ã‚Œã°ã€(ã©ã‚“ãªã‚¢ãƒ¼ã‚テクãƒãƒ£ã§ã‚‚)アセンブリ(訳注: 言語)ã¯å¿…è¦ã‚ã‚Š +ã¾ã›ã‚“。以下ã®æœ¬ã¯ã€C 言語ã®å分ãªçŸ¥è˜ã‚„何年もã®çµŒé¨“ã«å–ã£ã¦ä»£ã‚ã‚‹ã‚‚ã® +ã§ã¯ã‚ã‚Šã¾ã›ã‚“ãŒã€å°‘ãªãã¨ã‚‚リファレンスã¨ã—ã¦ã¯ã„ã„本ã§ã™ã€‚ + - "The C Programming Language" by Kernighan and Ritchie [Prentice Hall] + -『プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžï¼£ç¬¬2版ã€(B.W. カーニãƒãƒ³/D.M. リッãƒãƒ¼è‘— 石田晴久訳) [共立出版] + - "Practical C Programming" by Steve Oualline [O'Reilly] + - 『C実践プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ç¬¬3版ã€(Steve Ouallineè‘— 望月康å¸ç›£è¨³ è°·å£åŠŸè¨³) [オライリージャパン] + - "C: A Reference Manual" by Harbison and Steele [Prentice Hall] + - 『新・詳説 C 言語 H&S リファレンス〠+ (サミュエル P ãƒãƒ¼ãƒ“ソン/ガイ L スティール共著 斉藤 信男監訳)[ソフトãƒãƒ³ã‚¯] + +カーãƒãƒ«ã¯ GNU C 㨠GNU ツールãƒã‚§ã‚¤ãƒ³ã‚’使ã£ã¦æ›¸ã‹ã‚Œã¦ã„ã¾ã™ã€‚カーãƒãƒ« +㯠ISO C89 仕様ã«æº–æ‹ ã—ã¦æ›¸ã一方ã§ã€æ¨™æº–ã«ã¯ç„¡ã„言語拡張を多ã使ã£ã¦ +ã„ã¾ã™ã€‚カーãƒãƒ«ã¯æ¨™æº– C ライブラリã¨ã¯é–¢ä¿‚ãŒãªã„ã¨ã„ã£ãŸã€C 言語フリー +スタンディング環境ã§ã™ã€‚ãã®ãŸã‚ã€C ã®æ¨™æº–ã§ä½¿ãˆãªã„ã‚‚ã®ã‚‚ã‚ã‚Šã¾ã™ã€‚ä»» +æ„ã® long long ã®é™¤ç®—や浮動å°æ•°ç‚¹ã¯ä½¿ãˆã¾ã›ã‚“。 +ã¨ãã©ãã€ã‚«ãƒ¼ãƒãƒ«ãŒãƒ„ールãƒã‚§ã‚¤ãƒ³ã‚„ C 言語拡張ã«ç½®ã„ã¦ã„ã‚‹å‰æãŒã©ã† +ãªã£ã¦ã„ã‚‹ã®ã‹ã‚ã‹ã‚Šã«ãã„ã“ã¨ãŒã‚ã‚Šã€ã¾ãŸã€æ®‹å¿µãªã“ã¨ã«æ±ºå®šçš„ãªãƒªãƒ•ã‚¡ +レンスã¯å˜åœ¨ã—ã¾ã›ã‚“ã€‚æƒ…å ±ã‚’å¾—ã‚‹ã«ã¯ã€gcc ã® info ページ( info gcc )ã‚’ +ã¿ã¦ãã ã•ã„。 + +ã‚ãªãŸã¯æ—¢å˜ã®é–‹ç™ºã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã¨ä¸€ç·’ã«ä½œæ¥ã™ã‚‹æ–¹æ³•ã‚’å¦ã¼ã†ã¨ã—ã¦ã„ã‚‹ã“ +ã¨ã«ç•™æ„ã—ã¦ãã ã•ã„。ãã®ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã¯ã€ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã€ã‚¹ã‚¿ã‚¤ãƒ«ã€ +é–‹ç™ºæ‰‹é †ã«ã¤ã„ã¦é«˜åº¦ãªæ¨™æº–ã‚’æŒã¤ã€å¤šæ§˜ãªäººã®é›†ã¾ã‚Šã§ã™ã€‚ +地ç†çš„ã«åˆ†æ•£ã—ãŸå¤§è¦æ¨¡ãªãƒãƒ¼ãƒ ã«å¯¾ã—ã¦ã‚‚ã£ã¨ã‚‚ã†ã¾ãã„ãã¨ã‚ã‹ã£ãŸã“㨠+をベースã«ã—ãªãŒã‚‰ã€ã“れらã®æ¨™æº–ã¯é•·ã„時間をã‹ã‘ã¦ç¯‰ã‹ã‚Œã¦ãã¾ã—ãŸã€‚ +ã“れらã¯ãã¡ã‚“ã¨æ–‡æ›¸åŒ–ã•ã‚Œã¦ã„ã¾ã™ã‹ã‚‰ã€äº‹å‰ã«ã“れらã®æ¨™æº–ã«ã¤ã„ã¦ã§ã +ã‚‹ã ã‘ãŸãã•ã‚“å¦ã‚“ã§ãã ã•ã„。ã¾ãŸçš†ãŒã‚ãªãŸã‚„ã‚ãªãŸã®ä¼šç¤¾ã®ã‚„ã‚Šæ–¹ã«åˆã‚ +ã›ã¦ãれるã¨æ€ã‚ãªã„ã§ãã ã•ã„。 + +法的å•é¡Œ +------------ + +Linux カーãƒãƒ«ã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¯ GPL ライセンスã®ä¸‹ã§ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¦ã„ã¾ +ã™ã€‚ライセンスã®è©³ç´°ã«ã¤ã„ã¦ã¯ã€ã‚½ãƒ¼ã‚¹ãƒ„リーã®ãƒ¡ã‚¤ãƒ³ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã«å˜åœ¨ +ã™ã‚‹ã€COPYING ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã¿ã¦ãã ã•ã„。もã—ライセンスã«ã¤ã„ã¦ã•ã‚‰ã«è³ª +å•ãŒã‚ã‚Œã°ã€Linux Kernel メーリングリストã«è³ªå•ã™ã‚‹ã®ã§ã¯ãªãã€ã©ã†ãž +法律家ã«ç›¸è«‡ã—ã¦ãã ã•ã„。メーリングリストã®äººé”ã¯æ³•å¾‹å®¶ã§ã¯ãªãã€æ³•çš„ +å•é¡Œã«ã¤ã„ã¦ã¯å½¼ã‚‰ã®å£°æ˜Žã¯ã‚ã¦ã«ã™ã‚‹ã¹ãã§ã¯ã‚ã‚Šã¾ã›ã‚“。 + +GPL ã«é–¢ã™ã‚‹å…±é€šã®è³ªå•ã‚„回ç”ã«ã¤ã„ã¦ã¯ã€ä»¥ä¸‹ã‚’å‚ç…§ã—ã¦ãã ã•ã„。 + http://www.gnu.org/licenses/gpl-faq.html + +ドã‚ュメント +------------ + +Linux カーãƒãƒ«ã‚½ãƒ¼ã‚¹ãƒ„リーã¯å¹…広ã„範囲ã®ãƒ‰ã‚ュメントをå«ã‚“ã§ãŠã‚Šã€ãã‚Œ +らã¯ã‚«ãƒ¼ãƒãƒ«ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã¨ä¼šè©±ã™ã‚‹æ–¹æ³•ã‚’å¦ã¶ã®ã«éžå¸¸ã«è²´é‡ãªã‚‚ã®ã§ã™ã€‚ +æ–°ã—ã„機能ãŒã‚«ãƒ¼ãƒãƒ«ã«è¿½åŠ ã•ã‚Œã‚‹å ´åˆã€ãã®æ©Ÿèƒ½ã®ä½¿ã„æ–¹ã«ã¤ã„ã¦èª¬æ˜Žã—㟠+æ–°ã—ã„ドã‚ãƒ¥ãƒ¡ãƒ³ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚‚è¿½åŠ ã™ã‚‹ã“ã¨ã‚’勧ã‚ã¾ã™ã€‚ 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ルã«å¾“ã£ã¦ã„ã‚‹ã‚‚ã®ã ã‘ã‚’å—ã‘付ã‘ã€å¤šãã®äººã¯æ£ã—ã„スタイルã®ã‚³ãƒ¼ãƒ‰ + ã ã‘をレビューã—ã¾ã™ã€‚ + + Documentation/SubmittingPatches + Documentation/SubmittingDrivers + ã“れらã®ãƒ•ã‚¡ã‚¤ãƒ«ã«ã¯ã€ã©ã†ã‚„ã£ã¦ã†ã¾ãパッãƒã‚’作ã£ã¦æŠ•ç¨¿ã™ã‚‹ã‹ã« + ã¤ã„ã¦éžå¸¸ã«è©³ã—ã書ã‹ã‚Œã¦ãŠã‚Šã€ä»¥ä¸‹ã‚’å«ã¿ã¾ã™(ã“ã‚Œã ã‘ã«é™ã‚‰ãªã„ + ã‘ã‚Œã©ã‚‚) + - Email ã«å«ã‚€ã“㨠+ - Email ã®å½¢å¼ + - ã ã‚Œã«é€ã‚‹ã‹ + ã“れらã®ãƒ«ãƒ¼ãƒ«ã«å¾“ãˆã°ã†ã¾ãã„ãã“ã¨ã‚’ä¿è¨¼ã™ã‚‹ã“ã¨ã§ã¯ã‚ã‚Šã¾ã›ã‚“ + ㌠(ã™ã¹ã¦ã®ãƒ‘ッãƒã¯å†…容ã¨ã‚¹ã‚¿ã‚¤ãƒ«ã«ã¤ã„ã¦ç²¾æŸ»ã‚’å—ã‘ã‚‹ã®ã§)〠+ ルールã«å¾“ã‚ãªã‘ã‚Œã°é–“é•ã„ãªãã†ã¾ãã„ã‹ãªã„ã§ã—ょã†ã€‚ + ã“ã®ä»–ã«ãƒ‘ッãƒã‚’作る方法ã«ã¤ã„ã¦ã®ã‚ˆãã§ããŸè¨˜è¿°ã¯- + + "The Perfect Patch" + http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt + "Linux kernel patch submission format" + http://linux.yyz.us/patch-format.html + + Documentation/stable_api_nonsense.txt + ã“ã®ãƒ•ã‚¡ã‚¤ãƒ«ã¯ã‚«ãƒ¼ãƒãƒ«ã®ä¸ã«ä¸å¤‰ã®APIã‚’æŒãŸãªã„ã“ã¨ã«ã—ãŸæ„è˜çš„㪠+ 決æ–ã®èƒŒæ™¯ã«ã‚ã‚‹ç†ç”±ã«ã¤ã„ã¦æ›¸ã‹ã‚Œã¦ã„ã¾ã™ã€‚以下ã®ã‚ˆã†ãªã“ã¨ã‚’å« + ã‚“ã§ã„ã¾ã™- + - 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ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸå¾Œã€ + Linus ã¸ãƒ‘ッãƒã‚’é€ä»˜ã™ã‚‹ã®ã« git を使ã†ã“ã¨ã‚‚ã§ãã¾ã™ãŒã€ãƒ‘ッãƒã¯ + レビューã®ãŸã‚ã«ã€ãƒ‘ブリックãªãƒ¡ãƒ¼ãƒªãƒ³ã‚°ãƒªã‚¹ãƒˆã¸ã‚‚åŒæ™‚ã«é€ã‚‹å¿…è¦ãŒ + ã‚ã‚Šã¾ã™ã€‚ + + - æ–°ã—ã„ -rc 㯠Linus ãŒã€æœ€æ–°ã® git ツリーãŒãƒ†ã‚¹ãƒˆç›®çš„ã§ã‚ã‚Œã°å分 + ã«å®‰å®šã—ãŸçŠ¶æ…‹ã«ã‚ã‚‹ã¨åˆ¤æ–ã—ãŸã¨ãã«ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã™ã€‚目標ã¯æ¯Žé€±æ–° + ã—ã„ -rc カーãƒãƒ«ã‚’リリースã™ã‚‹ã“ã¨ã§ã™ã€‚ + + - ã“ã®ãƒ—ãƒã‚»ã‚¹ã¯ã‚«ãƒ¼ãƒãƒ«ãŒ 「準備ãŒã§ããŸã€ã¨è€ƒãˆã‚‰ã‚Œã‚‹ã¾ã§ç¶™ç¶šã—ã¾ + ã™ã€‚ã“ã®ãƒ—ãƒã‚»ã‚¹ã¯ã ã„ãŸã„ 6週間継続ã—ã¾ã™ã€‚ + +Andrew Morton ㌠Linux-kernel メーリングリストã«ã‚«ãƒ¼ãƒãƒ«ãƒªãƒªãƒ¼ã‚¹ã«ã¤ã„ +ã¦æ›¸ã„ãŸã“ã¨ã‚’ã“ã“ã§è¨€ã£ã¦ãŠãã“ã¨ã¯ä¾¡å€¤ãŒã‚ã‚Šã¾ã™- + 「カーãƒãƒ«ãŒã„ã¤ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã‚‹ã‹ã¯èª°ã‚‚知りã¾ã›ã‚“。ãªãœãªã‚‰ã€ã“ã‚Œã¯ç¾ + 実ã«èªè˜ã•ã‚ŒãŸãƒã‚°ã®çŠ¶æ³ã«ã‚ˆã‚Šãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã‚‹ã®ã§ã‚ã‚Šã€å‰ã‚‚ã£ã¦æ±ºã‚ら + ã‚ŒãŸè¨ˆç”»ã«ã‚ˆã£ã¦ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã‚‹ã‚‚ã®ã§ã¯ãªã„ã‹ã‚‰ã§ã™ã€‚〠+ +2.6.x.y -stable カーãƒãƒ«ãƒ„リー +--------------------------- + +ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã«4ã¤ç›®ã®æ•°å—ãŒã¤ã„ãŸã‚«ãƒ¼ãƒãƒ«ã¯ -stable カーãƒãƒ«ã§ã™ã€‚ã“れ㫠+ã¯ã€2.6.x カーãƒãƒ«ã§è¦‹ã¤ã‹ã£ãŸã‚»ã‚ュリティå•é¡Œã‚„é‡å¤§ãªå¾Œæˆ»ã‚Šã«å¯¾ã™ã‚‹æ¯” +較的å°ã•ã„é‡è¦ãªä¿®æ£ãŒå«ã¾ã‚Œã¾ã™ã€‚ + +ã“ã‚Œã¯ã€é–‹ç™º/実験的ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã®ãƒ†ã‚¹ãƒˆã«å”力ã™ã‚‹ã“ã¨ã«èˆˆå‘³ãŒç„¡ã〠+最新ã®å®‰å®šã—ãŸã‚«ãƒ¼ãƒãƒ«ã‚’使ã„ãŸã„ユーザã«æŽ¨å¥¨ã™ã‚‹ãƒ–ランãƒã§ã™ã€‚ + +ã‚‚ã—ã€2.6.x.y カーãƒãƒ«ãŒå˜åœ¨ã—ãªã„å ´åˆã«ã¯ã€ç•ªå·ãŒä¸€ç•ªå¤§ãã„ 2.6.x +ãŒæœ€æ–°ã®å®‰å®šç‰ˆã‚«ãƒ¼ãƒãƒ«ã§ã™ã€‚ + +2.6.x.y 㯠"stable" ãƒãƒ¼ãƒ <stable@kernel.org> ã§ãƒ¡ãƒ³ãƒ†ã•ã‚Œã¦ãŠã‚Šã€ã +ã„ãŸã„隔週ã§ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¦ã„ã¾ã™ã€‚ + +カーãƒãƒ«ãƒ„リーã«å…¥ã£ã¦ã„ã‚‹ã€Documentation/stable_kernel_rules.txt ファ +イルã«ã¯ã©ã®ã‚ˆã†ãªç¨®é¡žã®å¤‰æ›´ãŒ -stable ツリーã«å—ã‘入れå¯èƒ½ã‹ã€ã¾ãŸãƒª +リースプãƒã‚»ã‚¹ãŒã©ã†å‹•ãã‹ãŒè¨˜è¿°ã•ã‚Œã¦ã„ã¾ã™ã€‚ + +2.6.x -git パッム+------------------ + +git リãƒã‚¸ãƒˆãƒªã§ç®¡ç†ã•ã‚Œã¦ã„ã‚‹Linus ã®ã‚«ãƒ¼ãƒãƒ«ãƒ„リーã®æ¯Žæ—¥ã®ã‚¹ãƒŠãƒƒãƒ— +ショットãŒã‚ã‚Šã¾ã™ã€‚(ã ã‹ã‚‰ -git ã¨ã„ã†åå‰ãŒã¤ã„ã¦ã„ã¾ã™)。ã“れらã®ãƒ‘ッ +ãƒã¯ãŠãŠã‚€ã毎日リリースã•ã‚Œã¦ãŠã‚Šã€Linus ã®ãƒ„リーã®ç¾çŠ¶ã‚’表ã—ã¾ã™ã€‚ã“ +れ㯠-rc カーãƒãƒ«ã¨æ¯”ã¹ã¦ã€ãƒ‘ッãƒãŒå¤§ä¸ˆå¤«ã‹ã©ã†ã‹ã‚‚確èªã—ãªã„ã§è‡ªå‹•çš„ +ã«ç”Ÿæˆã•ã‚Œã‚‹ã®ã§ã€ã‚ˆã‚Šå®Ÿé¨“çš„ã§ã™ã€‚ + +2.6.x -mm カーãƒãƒ«ãƒ‘ッム+------------------------ + +Andrew Morton ã«ã‚ˆã£ã¦ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã‚‹å®Ÿé¨“çš„ãªã‚«ãƒ¼ãƒãƒ«ãƒ‘ッãƒç¾¤ã§ã™ã€‚ +Andrew ã¯å€‹åˆ¥ã®ã‚µãƒ–システムカーãƒãƒ«ãƒ„リーã¨ãƒ‘ッãƒã‚’å…¨ã¦é›†ã‚ã¦ã㦠+linux-kernel メーリングリストã§åŽé›†ã•ã‚ŒãŸå¤šæ•°ã®ãƒ‘ッãƒã¨åŒæ™‚ã«ä¸€ã¤ã«ã¾ +ã¨ã‚ã¾ã™ã€‚ +ã“ã®ãƒ„リーã¯æ–°æ©Ÿèƒ½ã¨ãƒ‘ッãƒãŒæ¤œè¨¼ã•ã‚Œã‚‹å ´ã¨ãªã‚Šã¾ã™ã€‚ã‚る期間ã®é–“パッム+㌠-mm ã«å…¥ã£ã¦ä¾¡å€¤ã‚’証明ã•ã‚ŒãŸã‚‰ã€Andrew やサブシステムメンテナãŒã€ãƒ¡ +インラインã¸å…¥ã‚Œã‚‹ã‚ˆã†ã« Linus ã«ãƒ—ッシュã—ã¾ã™ã€‚ + +メインカーãƒãƒ«ãƒ„リーã«å«ã‚ã‚‹ãŸã‚ã« Linus ã«é€ã‚‹å‰ã«ã€ã™ã¹ã¦ã®æ–°ã—ã„パッ +ãƒãŒ -mm ツリーã§ãƒ†ã‚¹ãƒˆã•ã‚Œã‚‹ã“ã¨ãŒå¼·ã推奨ã•ã‚Œã¾ã™ã€‚ + +ã“れらã®ã‚«ãƒ¼ãƒãƒ«ã¯å®‰å®šã—ã¦å‹•ä½œã™ã¹ãシステムã¨ã—ã¦ä½¿ã†ã®ã«ã¯é©åˆ‡ã§ã¯ã‚ +ã‚Šã¾ã›ã‚“ã—ã€ã‚«ãƒ¼ãƒãƒ«ãƒ–ランãƒã®ä¸ã§ã‚‚ã‚‚ã£ã¨ã‚‚動作ã«ãƒªã‚¹ã‚¯ãŒé«˜ã„ã‚‚ã®ã§ã™ã€‚ + +ã‚‚ã—ã‚ãªãŸãŒã€ã‚«ãƒ¼ãƒãƒ«é–‹ç™ºãƒ—ãƒã‚»ã‚¹ã®æ”¯æ´ã‚’ã—ãŸã„ã¨æ€ã£ã¦ã„ã‚‹ã®ã§ã‚ã‚Œã°ã€ +ã©ã†ãžã“れらã®ã‚«ãƒ¼ãƒãƒ«ãƒªãƒªãƒ¼ã‚¹ã‚’テストã«ä½¿ã£ã¦ã¿ã¦ã€ãã—ã¦ã‚‚ã—å•é¡ŒãŒã‚ +ã‚Œã°ã€ã¾ãŸã‚‚ã—å…¨ã¦ãŒæ£ã—ã動作ã—ãŸã¨ã—ã¦ã‚‚ã€linux-kernel メーリングリ +ストã«ãƒ•ã‚£ãƒ¼ãƒ‰ãƒãƒƒã‚¯ã‚’æä¾›ã—ã¦ãã ã•ã„。 + +ã™ã¹ã¦ã®ä»–ã®å®Ÿé¨“的パッãƒã«åŠ ãˆã¦ã€ã“れらã®ã‚«ãƒ¼ãƒãƒ«ã¯é€šå¸¸ãƒªãƒªãƒ¼ã‚¹æ™‚点㧠+メインライン㮠-git カーãƒãƒ«ã«å«ã¾ã‚Œã‚‹å…¨ã¦ã®å¤‰æ›´ã‚‚å«ã‚“ã§ã„ã¾ã™ã€‚ + +-mm カーãƒãƒ«ã¯æ±ºã¾ã£ãŸã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ«ã§ã¯ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã›ã‚“ã€ã—ã‹ã—通常幾 +ã¤ã‹ã® -mm カーãƒãƒ« (1 ã‹ã‚‰ 3 ãŒæ™®é€šï¼‰ãŒå„-rc カーãƒãƒ«ã®é–“ã«ãƒªãƒªãƒ¼ã‚¹ã• +ã‚Œã¾ã™ã€‚ + +サブシステム毎ã®ã‚«ãƒ¼ãƒãƒ«ãƒ„リーã¨ãƒ‘ッム+------------------------------------------- + +カーãƒãƒ«ã®æ§˜ã€…ãªé ˜åŸŸã§ä½•ãŒèµ·ãã¦ã„ã‚‹ã‹ã‚’見られるよã†ã«ã™ã‚‹ãŸã‚ã€å¤šãã® +カーãƒãƒ«ã‚µãƒ–システム開発者ã¯å½¼ã‚‰ã®é–‹ç™ºãƒ„リーを公開ã—ã¦ã„ã¾ã™ã€‚ã“れら㮠+ツリーã¯èª¬æ˜Žã—ãŸã‚ˆã†ã« -mm カーãƒãƒ«ãƒªãƒªãƒ¼ã‚¹ã«å…¥ã‚Œè¾¼ã¾ã‚Œã¾ã™ã€‚ + +以下ã¯ã•ã¾ã–ã¾ãªã‚«ãƒ¼ãƒãƒ«ãƒ„リーã®ä¸ã®ã„ãã¤ã‹ã®ãƒªã‚¹ãƒˆ- + + git ツリー- + - Kbuild ã®é–‹ç™ºãƒ„リーã€Sam Ravnborg <sam@ravnborg.org> + kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git + + - ACPI ã®é–‹ç™ºãƒ„リー〠Len Brown <len.brown@intel.com> + kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git + + - Block ã®é–‹ç™ºãƒ„リーã€Jens Axboe <axboe@suse.de> + kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git + + - DRM ã®é–‹ç™ºãƒ„リーã€Dave Airlie <airlied@linux.ie> + kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git + + - ia64 ã®é–‹ç™ºãƒ„リーã€Tony Luck <tony.luck@intel.com> + kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git + + - ieee1394 ã®é–‹ç™ºãƒ„リーã€Jody McIntyre <scjody@modernduck.com> + kernel.org:/pub/scm/linux/kernel/git/scjody/ieee1394.git + + - infiniband, Roland Dreier <rolandd@cisco.com> + kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git + + - libata, Jeff Garzik <jgarzik@pobox.com> + kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git + + - ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‰ãƒ©ã‚¤ãƒ, Jeff Garzik <jgarzik@pobox.com> + kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git + + - pcmcia, Dominik Brodowski <linux@dominikbrodowski.net> + kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git + + - SCSI, James Bottomley <James.Bottomley@SteelEye.com> + kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git + + ãã®ä»–ã® git カーãƒãƒ«ãƒ„リー㯠http://kernel.org/git ã«ä¸€è¦§è¡¨ãŒã‚ã‚Šã¾ + ã™ã€‚ + + quilt ツリー- + - USB, PCI ドライãƒã‚³ã‚¢ã¨ I2C, Greg Kroah-Hartman <gregkh@suse.de> + kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ + +ãƒã‚°ãƒ¬ãƒãƒ¼ãƒˆ +------------- + +bugzilla.kernel.org 㯠Linux カーãƒãƒ«é–‹ç™ºè€…ãŒã‚«ãƒ¼ãƒãƒ«ã®ãƒã‚°ã‚’追跡ã™ã‚‹ +å ´æ‰€ã§ã™ã€‚ユーザã¯è¦‹ã¤ã‘ãŸãƒã‚°ã®å…¨ã¦ã‚’ã“ã®ãƒ„ールã§å ±å‘Šã™ã¹ãã§ã™ã€‚ +ã©ã† kernel bugzilla を使ã†ã‹ã®è©³ç´°ã¯ã€ä»¥ä¸‹ã‚’å‚ç…§ã—ã¦ãã ã•ã„- + http://test.kernel.org/bugzilla/faq.html + +メインカーãƒãƒ«ã‚½ãƒ¼ã‚¹ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã«ã‚るファイル REPORTING-BUGS ã¯ã‚«ãƒ¼ãƒ +ルãƒã‚°ã‚‰ã—ã„ã‚‚ã®ã«ã¤ã„ã¦ã©ã†ãƒ¬ãƒãƒ¼ãƒˆã™ã‚‹ã‹ã®è‰¯ã„テンプレートã§ã‚ã‚Šã€å• +é¡Œã®è¿½è·¡ã‚’助ã‘ã‚‹ãŸã‚ã«ã‚«ãƒ¼ãƒãƒ«é–‹ç™ºè€…ã«ã¨ã£ã¦ã©ã‚“ãªæƒ…å ±ãŒå¿…è¦ãªã®ã‹ã®è©³ +ç´°ãŒæ›¸ã‹ã‚Œã¦ã„ã¾ã™ã€‚ + +メーリングリスト +------------- + 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http://vger.kernel.org/vger-lists.html + +メーリングリストを使ã†å ´åˆã€è‰¯ã„行動習慣ã«å¾“ã†ã‚ˆã†ã«ã—ã¾ã—ょã†ã€‚ +å°‘ã—安ã£ã½ã„ãŒã€ä»¥ä¸‹ã® URL ã¯ä¸Šã®ãƒªã‚¹ãƒˆ(ã‚„ä»–ã®ãƒªã‚¹ãƒˆ)ã§ä¼šè©±ã™ã‚‹å ´åˆã® +シンプルãªã‚¬ã‚¤ãƒ‰ãƒ©ã‚¤ãƒ³ã‚’示ã—ã¦ã„ã¾ã™- + http://www.albion.com/netiquette/ + +ã‚‚ã—複数ã®äººãŒã‚ãªãŸã®ãƒ¡ãƒ¼ãƒ«ã«è¿”事をã—ãŸå ´åˆã€CC: ã§å—ã‘る人ã®ãƒªã‚¹ãƒˆã¯ +ã ã„ã¶å¤šããªã‚‹ã§ã—ょã†ã€‚良ã„ç†ç”±ãŒãªã„å ´åˆã€CC: リストã‹ã‚‰èª°ã‹ã‚’削除を +ã—ãªã„よã†ã«ã€ã¾ãŸã€ãƒ¡ãƒ¼ãƒªãƒ³ã‚°ãƒªã‚¹ãƒˆã®ã‚¢ãƒ‰ãƒ¬ã‚¹ã ã‘ã«ãƒªãƒ—ライã™ã‚‹ã“ã¨ã® +ãªã„よã†ã«ã—ã¾ã—ょã†ã€‚1ã¤ã¯é€ä¿¡è€…ã‹ã‚‰ã€ã‚‚ã†1ã¤ã¯ãƒªã‚¹ãƒˆã‹ã‚‰ã®ã‚ˆã†ã«ã€ãƒ¡ãƒ¼ +ルを2回å—ã‘ã‚‹ã“ã¨ã«ãªã£ã¦ã‚‚ãã‚Œã«æ…£ã‚Œã€ã—ゃれãŸãƒ¡ãƒ¼ãƒ«ãƒ˜ãƒƒãƒ€ãƒ¼ã‚’è¿½åŠ ã— +ã¦ã“ã®çŠ¶æ…‹ã‚’変ãˆã‚ˆã†ã¨ã—ãªã„よã†ã«ã€‚人々ã¯ãã®ã‚ˆã†ãªã“ã¨ã¯å¥½ã¿ã¾ã›ã‚“。 + +今ã¾ã§ã®ãƒ¡ãƒ¼ãƒ«ã§ã®ã‚„ã‚Šã¨ã‚Šã¨ãã®é–“ã®ã‚ãªãŸã®ç™ºè¨€ã¯ãã®ã¾ã¾æ®‹ã—〠+"John Kernlehacker wrote ...:" ã®è¡Œã‚’ã‚ãªãŸã®ãƒªãƒ—ライã®å…ˆé è¡Œã«ã—ã¦ã€ +メールã®å…ˆé ã§ãªãã€å„引用行ã®é–“ã«ã‚ãªãŸã®è¨€ã„ãŸã„ã“ã¨ã‚’è¿½åŠ ã™ã‚‹ã¹ã㧠+ã™ã€‚ + +ã‚‚ã—パッãƒã‚’メールã«ä»˜ã‘ã‚‹å ´åˆã¯ã€Documentaion/SubmittingPatches ã«æ +示ã•ã‚Œã¦ã„るよã†ã«ã€ãれ㯠プレーンãªå¯èªãƒ†ã‚ストã«ã™ã‚‹ã“ã¨ã‚’忘れãªã„ +よã†ã«ã—ã¾ã—ょã†ã€‚カーãƒãƒ«é–‹ç™ºè€…㯠添付や圧縮ã—ãŸãƒ‘ッãƒã‚’扱ã„ãŸãŒã‚Šã¾ +ã›ã‚“- +彼らã¯ã‚ãªãŸã®ãƒ‘ッãƒã®è¡Œæ¯Žã«ã‚³ãƒ¡ãƒ³ãƒˆã‚’入れãŸã„ã®ã§ã€ãã®ãŸã‚ã«ã¯ãã†ã™ +ã‚‹ã—ã‹ã‚ã‚Šã¾ã›ã‚“。ã‚ãªãŸã®ãƒ¡ãƒ¼ãƒ«ãƒ—ãƒã‚°ãƒ©ãƒ ãŒç©ºç™½ã‚„タブを圧縮ã—ãªã„よㆠ+ã«ç¢ºèªã—ãŸæ–¹ãŒã„ã„ã§ã™ã€‚最åˆã®è‰¯ã„テストã¨ã—ã¦ã¯ã€è‡ªåˆ†ã«ãƒ¡ãƒ¼ãƒ«ã‚’é€ã£ã¦ +ã¿ã¦ã€ãã®ãƒ‘ッãƒã‚’自分ã§å½“ã¦ã¦ã¿ã‚‹ã“ã¨ã§ã™ã€‚ã‚‚ã—ãã‚ŒãŒã†ã¾ãè¡Œã‹ãªã„㪠+らã€ã‚ãªãŸã®ãƒ¡ãƒ¼ãƒ«ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ç›´ã—ã¦ã‚‚らã†ã‹ã€æ£ã—ãå‹•ãよã†ã«å¤‰ãˆã‚‹ã¹ +ãã§ã™ã€‚ + +ã¨ã‚Šã‚ã‘ã€ä»–ã®ç™»éŒ²è€…ã«å¯¾ã™ã‚‹å°Šæ•¬ã‚’表ã™ã‚ˆã†ã«ã™ã‚‹ã“ã¨ã‚’覚ãˆã¦ãŠã„ã¦ãã +ã•ã„。 + +コミュニティã¨å…±ã«åƒãã“㨠+-------------------------- + +カーãƒãƒ«ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã®ã‚´ãƒ¼ãƒ«ã¯å¯èƒ½ãªã‹ãŽã‚Šæœ€é«˜ã®ã‚«ãƒ¼ãƒãƒ«ã‚’æä¾›ã™ã‚‹ã“㨠+ã§ã™ã€‚ã‚ãªãŸãŒãƒ‘ッãƒã‚’å—ã‘入れã¦ã‚‚らã†ãŸã‚ã«æŠ•ç¨¿ã—ãŸå ´åˆã€ãã‚Œã¯ã€æŠ€è¡“ +的メリットã ã‘ãŒãƒ¬ãƒ“ューã•ã‚Œã¾ã™ã€‚ãã®éš›ã€ã‚ãªãŸã¯ä½•ã‚’予想ã™ã¹ãã§ã—ょ +ã†ã‹? + - 批判 + - コメント + - 変更ã®è¦æ±‚ + - 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+ã‚ãªãŸã®ãƒ‘ッãƒã‚’é€ä»˜ã™ã‚‹å ´åˆã«ã¯ã€ãƒ¡ãƒ¼ãƒ«ã®ä¸ã®ãƒ†ã‚ストã§ä½•ã‚’言ã†ã‹ã«ã¤ +ã„ã¦ã€ç‰¹åˆ¥ã«æ³¨æ„を払ã£ã¦ãã ã•ã„。ã“ã®æƒ…å ±ã¯ãƒ‘ッãƒã® ChangeLog ã«ä½¿ã‚ +ã‚Œã€ã„ã¤ã‚‚皆ãŒã¿ã‚‰ã‚Œã‚‹ã‚ˆã†ã«ä¿ç®¡ã•ã‚Œã¾ã™ã€‚ã“ã‚Œã¯æ¬¡ã®ã‚ˆã†ãªé …目をå«ã‚〠+パッãƒã‚’完全ã«è¨˜è¿°ã™ã‚‹ã¹ãã§ã™- + + - ãªãœå¤‰æ›´ãŒå¿…è¦ã‹ + - パッãƒå…¨ä½“ã®è¨è¨ˆã‚¢ãƒ—ãƒãƒ¼ãƒ + - 実装ã®è©³ç´° + - テストçµæžœ + +ã“ã‚Œã«ã¤ã„ã¦å…¨ã¦ãŒã©ã®ã‚ˆã†ã«ã‚ã‚‹ã¹ãã‹ã«ã¤ã„ã¦ã®è©³ç´°ã¯ã€ä»¥ä¸‹ã®ãƒ‰ã‚ュメ +ント㮠ChangeLog セクションをã¿ã¦ãã ã•ã„- + "The Perfect Patch" + http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt + +ã“れらã®ã©ã‚Œã‚‚ãŒã€æ™‚ã«ã¯ã¨ã¦ã‚‚困難ã§ã™ã€‚ã“れらã®æ…£ä¾‹ã‚’完璧ã«å®Ÿæ–½ã™ã‚‹ã« +ã¯æ•°å¹´ã‹ã‹ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“。ã“ã‚Œã¯ç¶™ç¶šçš„ãªæ”¹å–„ã®ãƒ—ãƒã‚»ã‚¹ã§ã‚ã‚Šã€ãã®ãŸ +ã‚ã«ã¯å¤šæ•°ã®å¿è€ã¨æ±ºæ„ã‚’å¿…è¦ã¨ã™ã‚‹ã‚‚ã®ã§ã™ã€‚ã§ã‚‚ã€è«¦ã‚ãªã„ã§ã€ã“ã‚Œã¯å¯ +能ãªã“ã¨ã§ã™ã€‚多数ã®äººãŒã™ã§ã«ã§ãã¦ã„ã¾ã™ã—ã€å½¼ã‚‰ã‚‚皆最åˆã¯ã‚ãªãŸã¨åŒ +ã˜ã¨ã“ã‚ã‹ã‚‰ã‚¹ã‚¿ãƒ¼ãƒˆã—ãŸã®ã§ã™ã‹ã‚‰ã€‚ + +Paolo Ciarrocchi ã«æ„Ÿè¬ã€å½¼ã¯å½¼ã®æ›¸ã„㟠"Development Process" +(http://linux.tar.bz/articles/2.6-development_process)セクショ +ンをã“ã®ãƒ†ã‚ストã®åŽŸåž‹ã«ã™ã‚‹ã“ã¨ã‚’許å¯ã—ã¦ãã‚Œã¾ã—ãŸã€‚ +Rundy Dunlap 㨠Gerrit Huizenga ã¯ãƒ¡ãƒ¼ãƒªãƒ³ã‚°ãƒªã‚¹ãƒˆã§ã‚„ã‚‹ã¹ãã“ã¨ã¨ã‚„㣠+ã¦ã¯ã„ã‘ãªã„ã“ã¨ã®ãƒªã‚¹ãƒˆã‚’æä¾›ã—ã¦ãã‚Œã¾ã—ãŸã€‚ +以下ã®äººã€…ã®ãƒ¬ãƒ“ューã€ã‚³ãƒ¡ãƒ³ãƒˆã€è²¢çŒ®ã«æ„Ÿè¬ã€‚ +Pat Mochel, Hanna Linder, Randy Dunlap, Kay Sievers, +Vojtech Pavlik, Jan Kara, Josh Boyer, Kees Cook, Andrew Morton, Andi +Kleen, Vadim Lobanov, Jesper Juhl, Adrian Bunk, Keri Harris, Frans Pop, +David A. Wheeler, Junio Hamano, Michael Kerrisk, 㨠Alex Shepard +彼らã®æ”¯æ´ãªã—ã§ã¯ã€ã“ã®ãƒ‰ã‚ュメントã¯ã§ããªã‹ã£ãŸã§ã—ょã†ã€‚ + +Maintainer: Greg Kroah-Hartman <greg@kroah.com> diff --git a/Documentation/ja_JP/stable_api_nonsense.txt b/Documentation/ja_JP/stable_api_nonsense.txt new file mode 100644 index 000000000000..b3f2b27f0881 --- /dev/null +++ b/Documentation/ja_JP/stable_api_nonsense.txt @@ -0,0 +1,263 @@ +NOTE: +This is a Japanese translated version of +"Documentation/stable_api_nonsense.txt". +This one is maintained by +IKEDA, Munehiro <m-ikeda@ds.jp.nec.com> +and JF Project team <http://www.linux.or.jp/JF/>. +If you find difference with original file or problem in translation, +please contact the maintainer of this file or JF project. + +Please also note that purpose of this file is easier to read for non +English natives and not to be intended to fork. So, if you have any +comments or updates of this file, please try to update +Original(English) file at first. + +================================== +ã“ã‚Œã¯ã€ +linux-2.6.22-rc4/Documentation/stable_api_nonsense.txt ã®å’Œè¨³ +ã§ã™ã€‚ +翻訳団体： JF プãƒã‚¸ã‚§ã‚¯ãƒˆ < http://www.linux.or.jp/JF/ > +翻訳日 ： 2007/06/11 +原著作者: Greg Kroah-Hartman < greg at kroah dot com > +翻訳者 ： æ± ç”° 宗広 < m-ikeda at ds dot jp dot nec dot com > +æ ¡æ£è€… ： Masanori Kobayashi ã•ã‚“ < zap03216 at nifty dot ne dot jp > + Seiji Kaneko ã•ã‚“ < skaneko at a2 dot mbn dot or dot jp > +================================== + + + +Linux カーãƒãƒ«ã®ãƒ‰ãƒ©ã‚¤ãƒã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ +（ã‚ãªãŸã®è³ªå•ã™ã¹ã¦ã«å¯¾ã™ã‚‹å›žç”ã¨ãã®ä»–諸々） + +Greg Kroah-Hartman <greg at kroah dot com> + + +ã“ã®æ–‡æ›¸ã¯ã€ãªãœ Linux ã§ã¯ãƒã‚¤ãƒŠãƒªã‚«ãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ãŒå®šç¾© +ã•ã‚Œã¦ã„ãªã„ã®ã‹ã€ã¾ãŸã¯ãªãœä¸å¤‰ã®ã‚«ãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã‚’æŒãŸãª +ã„ã®ã‹ã€ã¨ã„ã†ã“ã¨ã‚’説明ã™ã‚‹ãŸã‚ã«æ›¸ã‹ã‚ŒãŸã€‚ã“ã“ã§ã®è©±é¡Œã¯ã€Œã‚«ãƒ¼ãƒ +ル内部ã®ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«ã¤ã„ã¦ã§ã‚ã‚Šã€ãƒ¦ãƒ¼ã‚¶ãƒ¼ç©ºé–“ã¨ã®ã‚¤ãƒ³ã‚¿ãƒ¼ +フェースã§ã¯ãªã„ã“ã¨ã‚’ç†è§£ã—ã¦ã»ã—ã„。カーãƒãƒ«ã¨ãƒ¦ãƒ¼ã‚¶ãƒ¼ç©ºé–“ã¨ã®ã‚¤ +ンターフェースã¨ã¯ã‚¢ãƒ—リケーションプãƒã‚°ãƒ©ãƒ ãŒä½¿ç”¨ã™ã‚‹ã‚‚ã®ã§ã‚り〠+ã¤ã¾ã‚Šã‚·ã‚¹ãƒ†ãƒ コールã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ãŒã“ã‚Œã«å½“ãŸã‚‹ã€‚ã“ã‚Œã¯ä»Šã¾ã§ +é•·ãã«æ¸¡ã‚Šã€ã‹ã¤ä»Šå¾Œã‚‚「ã¾ã•ã—ãã€ä¸å¤‰ã§ã‚る。ç§ã¯ç¢ºã‹ 0.9 ã‹ä½•ã‹ +よりå‰ã®ã‚«ãƒ¼ãƒãƒ«ã‚’使ã£ã¦ãƒ“ルドã—ãŸå¤ã„プãƒã‚°ãƒ©ãƒ ã‚’æŒã£ã¦ã„ã‚‹ãŒã€ã +ã‚Œã¯æœ€æ–°ã® 2.6 カーãƒãƒ«ã§ã‚‚ãã¡ã‚“ã¨å‹•ä½œã™ã‚‹ã€‚ユーザー空間ã¨ã®ã‚¤ãƒ³ +ターフェースã¯ã€ãƒ¦ãƒ¼ã‚¶ãƒ¼ã¨ã‚¢ãƒ—リケーションプãƒã‚°ãƒ©ãƒžãŒä¸å¤‰æ€§ã‚’ä¿¡é ¼ +ã—ã¦ã‚ˆã„ã‚‚ã®ã®ä¸€ã¤ã§ã‚る。 + + +è¦æ—¨ +---- + +ã‚ãªãŸã¯ä¸å¤‰ã®ã‚«ãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ãŒå¿…è¦ã ã¨è€ƒãˆã¦ã„ã‚‹ã‹ã‚‚ã—ã‚Œ +ãªã„ãŒã€å®Ÿéš›ã®ã¨ã“ã‚ã¯ãã†ã§ã¯ãªã„。ã‚ãªãŸã¯å¿…è¦ã¨ã—ã¦ã„ã‚‹ã‚‚ã®ãŒåˆ† +ã‹ã£ã¦ã„ãªã„。ã‚ãªãŸãŒå¿…è¦ã¨ã—ã¦ã„ã‚‹ã‚‚ã®ã¯å®‰å®šã—ã¦å‹•ä½œã™ã‚‹ãƒ‰ãƒ©ã‚¤ãƒ +ã§ã‚ã‚Šã€ãã‚Œã¯ãƒ‰ãƒ©ã‚¤ãƒãŒãƒ¡ã‚¤ãƒ³ã®ã‚«ãƒ¼ãƒãƒ«ãƒ„リーã«å«ã¾ã‚Œã‚‹å ´åˆã®ã¿å¾— +ã‚‹ã“ã¨ãŒã§ãる。ドライãƒãŒãƒ¡ã‚¤ãƒ³ã®ã‚«ãƒ¼ãƒãƒ«ãƒ„リーã«å«ã¾ã‚Œã¦ã„ã‚‹ã¨ã€ +ä»–ã«ã‚‚多ãã®è‰¯ã„ã“ã¨ãŒã‚る。ãã‚Œã¯ã€Linux をより強固ã§ã€å®‰å®šãªã€æˆ +熟ã—ãŸã‚ªãƒšãƒ¬ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã‚·ã‚¹ãƒ†ãƒ ã«ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã¨ã„ã†ã“ã¨ã 。ã“ã‚Œ +ã“ãã€ãã‚‚ãã‚‚ã‚ãªãŸãŒ Linux を使ã†ç†ç”±ã®ã¯ãšã 。 + + +ã¯ã˜ã‚ã« +-------- + +カーãƒãƒ«å†…部ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹å¤‰æ›´ã‚’心é…ã—ãªã‘ã‚Œã°ãªã‚‰ãªã„ドライム+を書ããŸã„ãªã©ã¨ã„ã†ã®ã¯ã€å¤‰ã‚り者ã ã‘ã 。ã“ã®ä¸–ç•Œã®ã»ã¨ã‚“ã©ã®äººã¯ã€ +ãã®ã‚ˆã†ãªãƒ‰ãƒ©ã‚¤ãƒãŒã©ã‚“ãªã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã‚’使ã£ã¦ã„ã‚‹ã‹ãªã©çŸ¥ã‚‰ãª +ã„ã—ã€ãã‚“ãªãƒ‰ãƒ©ã‚¤ãƒã®ã“ã¨ãªã©å…¨ãæ°—ã«ã‚‚ã‹ã‘ã¦ã„ãªã„。 + + +ã¾ãšåˆã‚ã«ã€ã‚¯ãƒãƒ¼ã‚ºã‚½ãƒ¼ã‚¹ã¨ã‹ã€ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã®éš 蔽ã¨ã‹ã€ãƒã‚¤ãƒŠãƒªã® +ã¿ãŒé…布ã•ã‚Œã‚‹ä½¿ã„物ã«ãªã‚‰ãªã„代物[訳注(1)]ã¨ã‹ã€å®Ÿä½“ã¯ãƒã‚¤ãƒŠãƒª +コードã§ãれをèªã¿è¾¼ã‚€ãŸã‚ã®ãƒ©ãƒƒãƒ‘ー部分ã®ã¿ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãŒå…¬é–‹ã•ã‚Œ +ã¦ã„ã‚‹ã¨ã‹ã€ãã®ä»–用語ã¯ä½•ã§ã‚ã‚Œ GPL ã®ä¸‹ã«ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãŒãƒªãƒªãƒ¼ã‚¹ +ã•ã‚Œã¦ã„ãªã„カーãƒãƒ«ãƒ‰ãƒ©ã‚¤ãƒã«é–¢ã™ã‚‹æ³•çš„ãªå•é¡Œã«ã¤ã„ã¦ã€ç§ã¯ã€Œã„ã‹ +ãªã‚‹è°è«–ã‚‚ã€è¡Œã†ã¤ã‚‚ã‚ŠãŒãªã„。法的ãªç–‘å•ãŒã‚ã‚‹ã®ãªã‚‰ã°ã€ãƒ—ãƒã‚°ãƒ©ãƒž +ã§ã‚ã‚‹ç§ã§ã¯ãªãã€å¼è·å£«ã«ç›¸è«‡ã—ã¦æ¬²ã—ã„。ã“ã“ã§ã¯å˜ã«ã€æŠ€è¡“çš„ãªå• +é¡Œã«ã¤ã„ã¦è¿°ã¹ã‚‹ã“ã¨ã«ã™ã‚‹ã€‚（法的ãªå•é¡Œã‚’軽視ã—ã¦ã„ã‚‹ã‚ã‘ã§ã¯ãªã„。 +ãれらã¯å®Ÿéš›ã«å˜åœ¨ã™ã‚‹ã—ã€ã‚ãªãŸã¯ãれをã„ã¤ã‚‚æ°—ã«ã‹ã‘ã¦ãŠãå¿…è¦ãŒ +ã‚る） + +訳注(1) +「使ã„物ã«ãªã‚‰ãªã„代物ã€ã®åŽŸæ–‡ã¯ "blob" + + +ã•ã¦ã“ã“ã§ã¯ã€ãƒã‚¤ãƒŠãƒªã‚«ãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«ã¤ã„ã¦ã¨ã€ã‚½ãƒ¼ã‚¹ãƒ¬ +ベルã§ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã®ä¸å¤‰æ€§ã«ã¤ã„ã¦ã€ã¨ã„ã†äºŒã¤ã®è©±é¡Œã‚’å–り上 +ã’る。ã“ã®äºŒã¤ã¯äº’ã„ã«ä¾å˜ã™ã‚‹é–¢ä¿‚ã«ã‚ã‚‹ãŒã€ã¾ãšã¯ãƒã‚¤ãƒŠãƒªã‚¤ãƒ³ã‚¿ãƒ¼ +フェースã«ã¤ã„ã¦è°è«–ã‚’è¡Œã„ã‚„ã£ã¤ã‘ã¦ã—ã¾ãŠã†ã€‚ + + +ãƒã‚¤ãƒŠãƒªã‚«ãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ +-------------------------------- + +ã‚‚ã—ソースレベルã§ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ãŒä¸å¤‰ãªã‚‰ã°ã€ãƒã‚¤ãƒŠãƒªã‚¤ãƒ³ã‚¿ãƒ¼ +フェースも当然ã®ã‚ˆã†ã«ä¸å¤‰ã§ã‚ã‚‹ã€ã¨ã„ã†ã®ã¯æ£ã—ã„ã ã‚ã†ã‹ï¼Ÿæ£ã—ã +ãªã„。Linux カーãƒãƒ«ã«é–¢ã™ã‚‹ä»¥ä¸‹ã®äº‹å®Ÿã‚’考ãˆã¦ã¿ã¦ã»ã—ã„。 + - 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ドライãƒã®å“質ãŒå‘上ã™ã‚‹ä¸€æ–¹ã§ã€ï¼ˆå…ƒã®é–‹ç™ºè€…ã«ã¨ã£ã¦ã®ï¼‰ãƒ¡ãƒ³ãƒ† + ナンスコストã¯ä¸‹ãŒã‚‹ã€‚ + - ã‚ãªãŸã®ãƒ‰ãƒ©ã‚¤ãƒã«ä»–ã®é–‹ç™ºè€…ãŒæ©Ÿèƒ½ã‚’è¿½åŠ ã—ã¦ãれる。 + - 誰ã‹ãŒã‚ãªãŸã®ãƒ‰ãƒ©ã‚¤ãƒã«ã‚ã‚‹ãƒã‚°ã‚’見ã¤ã‘ã€ä¿®æ£ã—ã¦ãれる。 + - 誰ã‹ãŒã‚ãªãŸã®ãƒ‰ãƒ©ã‚¤ãƒã«ã‚る改善点を見ã¤ã‘ã¦ãれる。 + - 外部インターフェースãŒå¤‰æ›´ã•ã‚Œãƒ‰ãƒ©ã‚¤ãƒã®æ›´æ–°ãŒå¿…è¦ã«ãªã£ãŸå ´åˆã€ + 誰ã‹ãŒã‚ãªãŸã®ä»£ã‚ã‚Šã«æ›´æ–°ã—ã¦ãれる。 + - ドライãƒã‚’入れã¦ãã‚Œã¨ãƒ‡ã‚£ã‚¹ãƒˆãƒã«é ¼ã¾ãªãã¦ã‚‚ã€ãã®ãƒ‰ãƒ©ã‚¤ãƒã¯ + å…¨ã¦ã® Linux ディストリビューションã«è‡ªå‹•çš„ã«å«ã¾ã‚Œã¦ãƒªãƒªãƒ¼ã‚¹ + ã•ã‚Œã‚‹ã€‚ + + +Linux ã§ã¯ã€ä»–ã®ã©ã®ã‚ªãƒšãƒ¬ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã‚·ã‚¹ãƒ†ãƒ よりも数多ãã®ãƒ‡ãƒã‚¤ã‚¹ +ãŒã€Œãã®ã¾ã¾ã€ä½¿ç”¨ã§ãるよã†ã«ãªã£ãŸã€‚ã¾ãŸ Linux ã¯ã€ã©ã®ã‚ªãƒšãƒ¬ãƒ¼ +ティングシステムよりも数多ãã®ãƒ—ãƒã‚»ãƒƒã‚µã‚¢ãƒ¼ã‚テクãƒãƒ£ä¸Šã§ãれら㮠+デãƒã‚¤ã‚¹ã‚’使用ã™ã‚‹ã“ã¨ãŒã§ãるよã†ã«ã‚‚ãªã£ãŸã€‚ã“ã®ã‚ˆã†ã«ã€Linux ã® +開発モデルã¯å®Ÿè¨¼ã•ã‚Œã¦ãŠã‚Šã€ä»Šå¾Œã‚‚é–“é•ã„ãªãæ£ã—ã„æ–¹å‘ã¸ã¨é€²ã‚“ã§ã„ +ãã ã‚ã†ã€‚:) + + + +------ + +ã“ã®æ–‡æ›¸ã®åˆæœŸã®è‰ç¨¿ã«å¯¾ã—ã€Randy Dunlap, Andrew Morton, David +Brownell, Hanna Linder, Robert Love, Nishanth Aravamudan ã‹ã‚‰æŸ»èª +ã¨åŠ©è¨€ã‚’é ‚ãã¾ã—ãŸã€‚æ„Ÿè¬ç”³ã—上ã’ã¾ã™ã€‚ + diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c48bc2e159ce..854744bde224 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -817,6 +817,32 @@ and is between 256 and 4096 characters. It is defined in the file js= [HW,JOY] Analog joystick See Documentation/input/joystick.txt. + kernelcore=nn[KMG] [KNL,IA-32,IA-64,PPC,X86-64] This parameter + specifies the amount of memory usable by the kernel + for non-movable allocations. The requested amount is + spread evenly throughout all nodes in the system. The + remaining memory in each node is used for Movable + pages. In the event, a node is too small to have both + kernelcore and Movable pages, kernelcore pages will + take priority and other nodes will have a larger number + of kernelcore pages. The Movable zone is used for the + allocation of pages that may be reclaimed or moved + by the page migration subsystem. This means that + HugeTLB pages may not be allocated from this zone. + Note that allocations like PTEs-from-HighMem still + use the HighMem zone if it exists, and the Normal + zone if it does not. + + movablecore=nn[KMG] [KNL,IA-32,IA-64,PPC,X86-64] This parameter + is similar to kernelcore except it specifies the + amount of memory used for migratable allocations. + If both kernelcore and movablecore is specified, + then kernelcore will be at *least* the specified + value but may be more. If movablecore on its own + is specified, the administrator must be careful + that the amount of memory usable for all allocations + is not too small. + keepinitrd [HW,ARM] kstack=N [IA-32,X86-64] Print N words from the kernel stack diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt index da5404ab7569..cb12ae175aa2 100644 --- a/Documentation/kprobes.txt +++ b/Documentation/kprobes.txt @@ -247,12 +247,6 @@ control to Kprobes.) If the probed function is declared asmlinkage, fastcall, or anything else that affects how args are passed, the handler's declaration must match. -NOTE: A macro JPROBE_ENTRY is provided to handle architecture-specific -aliasing of jp->entry. In the interest of portability, it is advised -to use: - - jp->entry = JPROBE_ENTRY(handler); - register_jprobe() returns 0 on success, or a negative errno otherwise. 4.3 register_kretprobe @@ -518,7 +512,7 @@ long jdo_fork(unsigned long clone_flags, unsigned long stack_start, } static struct jprobe my_jprobe = { - .entry = JPROBE_ENTRY(jdo_fork) + .entry = jdo_fork }; static int __init jprobe_init(void) diff --git a/Documentation/lguest/Makefile b/Documentation/lguest/Makefile new file mode 100644 index 000000000000..b9b9427376e9 --- /dev/null +++ b/Documentation/lguest/Makefile @@ -0,0 +1,27 @@ +# This creates the demonstration utility "lguest" which runs a Linux guest. + +# For those people that have a separate object dir, look there for .config +KBUILD_OUTPUT := ../.. +ifdef O + ifeq ("$(origin O)", "command line") + KBUILD_OUTPUT := $(O) + endif +endif +# We rely on CONFIG_PAGE_OFFSET to know where to put lguest binary. +include $(KBUILD_OUTPUT)/.config +LGUEST_GUEST_TOP := ($(CONFIG_PAGE_OFFSET) - 0x08000000) + +CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 \ + -static -DLGUEST_GUEST_TOP="$(LGUEST_GUEST_TOP)" -Wl,-T,lguest.lds +LDLIBS:=-lz + +all: lguest.lds lguest + +# The linker script on x86 is so complex the only way of creating one +# which will link our binary in the right place is to mangle the +# default one. +lguest.lds: + $(LD) --verbose | awk '/^==========/ { PRINT=1; next; } /SIZEOF_HEADERS/ { gsub(/0x[0-9A-F]*/, "$(LGUEST_GUEST_TOP)") } { if (PRINT) print $$0; }' > $@ + +clean: + rm -f lguest.lds lguest diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c new file mode 100644 index 000000000000..1432b502a2d9 --- /dev/null +++ b/Documentation/lguest/lguest.c @@ -0,0 +1,1012 @@ +/* Simple program to layout "physical" memory for new lguest guest. + * Linked high to avoid likely physical memory. */ +#define _LARGEFILE64_SOURCE +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <err.h> +#include <stdint.h> +#include <stdlib.h> +#include <elf.h> +#include <sys/mman.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <fcntl.h> +#include <stdbool.h> +#include <errno.h> +#include <ctype.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <sys/time.h> +#include <time.h> +#include <netinet/in.h> +#include <net/if.h> +#include <linux/sockios.h> +#include <linux/if_tun.h> +#include <sys/uio.h> +#include <termios.h> +#include <getopt.h> +#include <zlib.h> +typedef unsigned long long u64; +typedef uint32_t u32; +typedef uint16_t u16; +typedef uint8_t u8; +#include "../../include/linux/lguest_launcher.h" +#include "../../include/asm-i386/e820.h" + +#define PAGE_PRESENT 0x7 /* Present, RW, Execute */ +#define NET_PEERNUM 1 +#define BRIDGE_PFX "bridge:" +#ifndef SIOCBRADDIF +#define SIOCBRADDIF 0x89a2 /* add interface to bridge */ +#endif + +static bool verbose; +#define verbose(args...) \ + do { if (verbose) printf(args); } while(0) +static int waker_fd; + +struct device_list +{ + fd_set infds; + int max_infd; + + struct device *dev; + struct device **lastdev; +}; + +struct device +{ + struct device *next; + struct lguest_device_desc *desc; + void *mem; + + /* Watch this fd if handle_input non-NULL. */ + int fd; + bool (*handle_input)(int fd, struct device *me); + + /* Watch DMA to this key if handle_input non-NULL. */ + unsigned long watch_key; + u32 (*handle_output)(int fd, const struct iovec *iov, + unsigned int num, struct device *me); + + /* Device-specific data. */ + void *priv; +}; + +static int open_or_die(const char *name, int flags) +{ + int fd = open(name, flags); + if (fd < 0) + err(1, "Failed to open %s", name); + return fd; +} + +static void *map_zeroed_pages(unsigned long addr, unsigned int num) +{ + static int fd = -1; + + if (fd == -1) + fd = open_or_die("/dev/zero", O_RDONLY); + + if (mmap((void *)addr, getpagesize() * num, + PROT_READ|PROT_WRITE|PROT_EXEC, MAP_FIXED|MAP_PRIVATE, fd, 0) + != (void *)addr) + err(1, "Mmaping %u pages of /dev/zero @%p", num, (void *)addr); + return (void *)addr; +} + +/* Find magic string marking entry point, return entry point. */ +static unsigned long entry_point(void *start, void *end, + unsigned long page_offset) +{ + void *p; + + for (p = start; p < end; p++) + if (memcmp(p, "GenuineLguest", strlen("GenuineLguest")) == 0) + return (long)p + strlen("GenuineLguest") + page_offset; + + err(1, "Is this image a genuine lguest?"); +} + +/* Returns the entry point */ +static unsigned long map_elf(int elf_fd, const Elf32_Ehdr *ehdr, + unsigned long *page_offset) +{ + void *addr; + Elf32_Phdr phdr[ehdr->e_phnum]; + unsigned int i; + unsigned long start = -1UL, end = 0; + + /* Sanity checks. */ + if (ehdr->e_type != ET_EXEC + || ehdr->e_machine != EM_386 + || ehdr->e_phentsize != sizeof(Elf32_Phdr) + || ehdr->e_phnum < 1 || ehdr->e_phnum > 65536U/sizeof(Elf32_Phdr)) + errx(1, "Malformed elf header"); + + if (lseek(elf_fd, ehdr->e_phoff, SEEK_SET) < 0) + err(1, "Seeking to program headers"); + if (read(elf_fd, phdr, sizeof(phdr)) != sizeof(phdr)) + err(1, "Reading program headers"); + + *page_offset = 0; + /* We map the loadable segments at virtual addresses corresponding + * to their physical addresses (our virtual == guest physical). */ + for (i = 0; i < ehdr->e_phnum; i++) { + if (phdr[i].p_type != PT_LOAD) + continue; + + verbose("Section %i: size %i addr %p\n", + i, phdr[i].p_memsz, (void *)phdr[i].p_paddr); + + /* We expect linear address space. */ + if (!*page_offset) + *page_offset = phdr[i].p_vaddr - phdr[i].p_paddr; + else if (*page_offset != phdr[i].p_vaddr - phdr[i].p_paddr) + errx(1, "Page offset of section %i different", i); + + if (phdr[i].p_paddr < start) + start = phdr[i].p_paddr; + if (phdr[i].p_paddr + phdr[i].p_filesz > end) + end = phdr[i].p_paddr + phdr[i].p_filesz; + + /* We map everything private, writable. */ + addr = mmap((void *)phdr[i].p_paddr, + phdr[i].p_filesz, + PROT_READ|PROT_WRITE|PROT_EXEC, + MAP_FIXED|MAP_PRIVATE, + elf_fd, phdr[i].p_offset); + if (addr != (void *)phdr[i].p_paddr) + err(1, "Mmaping vmlinux seg %i gave %p not %p", + i, addr, (void *)phdr[i].p_paddr); + } + + return entry_point((void *)start, (void *)end, *page_offset); +} + +/* This is amazingly reliable. */ +static unsigned long intuit_page_offset(unsigned char *img, unsigned long len) +{ + unsigned int i, possibilities[256] = { 0 }; + + for (i = 0; i + 4 < len; i++) { + /* mov 0xXXXXXXXX,%eax */ + if (img[i] == 0xA1 && ++possibilities[img[i+4]] > 3) + return (unsigned long)img[i+4] << 24; + } + errx(1, "could not determine page offset"); +} + +static unsigned long unpack_bzimage(int fd, unsigned long *page_offset) +{ + gzFile f; + int ret, len = 0; + void *img = (void *)0x100000; + + f = gzdopen(fd, "rb"); + while ((ret = gzread(f, img + len, 65536)) > 0) + len += ret; + if (ret < 0) + err(1, "reading image from bzImage"); + + verbose("Unpacked size %i addr %p\n", len, img); + *page_offset = intuit_page_offset(img, len); + + return entry_point(img, img + len, *page_offset); +} + +static unsigned long load_bzimage(int fd, unsigned long *page_offset) +{ + unsigned char c; + int state = 0; + + /* Ugly brute force search for gzip header. */ + while (read(fd, &c, 1) == 1) { + switch (state) { + case 0: + if (c == 0x1F) + state++; + break; + case 1: + if (c == 0x8B) + state++; + else + state = 0; + break; + case 2 ... 8: + state++; + break; + case 9: + lseek(fd, -10, SEEK_CUR); + if (c != 0x03) /* Compressed under UNIX. */ + state = -1; + else + return unpack_bzimage(fd, page_offset); + } + } + errx(1, "Could not find kernel in bzImage"); +} + +static unsigned long load_kernel(int fd, unsigned long *page_offset) +{ + Elf32_Ehdr hdr; + + if (read(fd, &hdr, sizeof(hdr)) != sizeof(hdr)) + err(1, "Reading kernel"); + + if (memcmp(hdr.e_ident, ELFMAG, SELFMAG) == 0) + return map_elf(fd, &hdr, page_offset); + + return load_bzimage(fd, page_offset); +} + +static inline unsigned long page_align(unsigned long addr) +{ + return ((addr + getpagesize()-1) & ~(getpagesize()-1)); +} + +/* initrd gets loaded at top of memory: return length. */ +static unsigned long load_initrd(const char *name, unsigned long mem) +{ + int ifd; + struct stat st; + unsigned long len; + void *iaddr; + + ifd = open_or_die(name, O_RDONLY); + if (fstat(ifd, &st) < 0) + err(1, "fstat() on initrd '%s'", name); + + len = page_align(st.st_size); + iaddr = mmap((void *)mem - len, st.st_size, + PROT_READ|PROT_EXEC|PROT_WRITE, + MAP_FIXED|MAP_PRIVATE, ifd, 0); + if (iaddr != (void *)mem - len) + err(1, "Mmaping initrd '%s' returned %p not %p", + name, iaddr, (void *)mem - len); + close(ifd); + verbose("mapped initrd %s size=%lu @ %p\n", name, st.st_size, iaddr); + return len; +} + +static unsigned long setup_pagetables(unsigned long mem, + unsigned long initrd_size, + unsigned long page_offset) +{ + u32 *pgdir, *linear; + unsigned int mapped_pages, i, linear_pages; + unsigned int ptes_per_page = getpagesize()/sizeof(u32); + + /* If we can map all of memory above page_offset, we do so. */ + if (mem <= -page_offset) + mapped_pages = mem/getpagesize(); + else + mapped_pages = -page_offset/getpagesize(); + + /* Each linear PTE page can map ptes_per_page pages. */ + linear_pages = (mapped_pages + ptes_per_page-1)/ptes_per_page; + + /* We lay out top-level then linear mapping immediately below initrd */ + pgdir = (void *)mem - initrd_size - getpagesize(); + linear = (void *)pgdir - linear_pages*getpagesize(); + + for (i = 0; i < mapped_pages; i++) + linear[i] = ((i * getpagesize()) | PAGE_PRESENT); + + /* Now set up pgd so that this memory is at page_offset */ + for (i = 0; i < mapped_pages; i += ptes_per_page) { + pgdir[(i + page_offset/getpagesize())/ptes_per_page] + = (((u32)linear + i*sizeof(u32)) | PAGE_PRESENT); + } + + verbose("Linear mapping of %u pages in %u pte pages at %p\n", + mapped_pages, linear_pages, linear); + + return (unsigned long)pgdir; +} + +static void concat(char *dst, char *args[]) +{ + unsigned int i, len = 0; + + for (i = 0; args[i]; i++) { + strcpy(dst+len, args[i]); + strcat(dst+len, " "); + len += strlen(args[i]) + 1; + } + /* In case it's empty. */ + dst[len] = '\0'; +} + +static int tell_kernel(u32 pgdir, u32 start, u32 page_offset) +{ + u32 args[] = { LHREQ_INITIALIZE, + LGUEST_GUEST_TOP/getpagesize(), /* Just below us */ + pgdir, start, page_offset }; + int fd; + + fd = open_or_die("/dev/lguest", O_RDWR); + if (write(fd, args, sizeof(args)) < 0) + err(1, "Writing to /dev/lguest"); + return fd; +} + +static void set_fd(int fd, struct device_list *devices) +{ + FD_SET(fd, &devices->infds); + if (fd > devices->max_infd) + devices->max_infd = fd; +} + +/* When input arrives, we tell the kernel to kick lguest out with -EAGAIN. */ +static void wake_parent(int pipefd, int lguest_fd, struct device_list *devices) +{ + set_fd(pipefd, devices); + + for (;;) { + fd_set rfds = devices->infds; + u32 args[] = { LHREQ_BREAK, 1 }; + + select(devices->max_infd+1, &rfds, NULL, NULL, NULL); + if (FD_ISSET(pipefd, &rfds)) { + int ignorefd; + if (read(pipefd, &ignorefd, sizeof(ignorefd)) == 0) + exit(0); + FD_CLR(ignorefd, &devices->infds); + } else + write(lguest_fd, args, sizeof(args)); + } +} + +static int setup_waker(int lguest_fd, struct device_list *device_list) +{ + int pipefd[2], child; + + pipe(pipefd); + child = fork(); + if (child == -1) + err(1, "forking"); + + if (child == 0) { + close(pipefd[1]); + wake_parent(pipefd[0], lguest_fd, device_list); + } + close(pipefd[0]); + + return pipefd[1]; +} + +static void *_check_pointer(unsigned long addr, unsigned int size, + unsigned int line) +{ + if (addr >= LGUEST_GUEST_TOP || addr + size >= LGUEST_GUEST_TOP) + errx(1, "%s:%i: Invalid address %li", __FILE__, line, addr); + return (void *)addr; +} +#define check_pointer(addr,size) _check_pointer(addr, size, __LINE__) + +/* Returns pointer to dma->used_len */ +static u32 *dma2iov(unsigned long dma, struct iovec iov[], unsigned *num) +{ + unsigned int i; + struct lguest_dma *udma; + + udma = check_pointer(dma, sizeof(*udma)); + for (i = 0; i < LGUEST_MAX_DMA_SECTIONS; i++) { + if (!udma->len[i]) + break; + + iov[i].iov_base = check_pointer(udma->addr[i], udma->len[i]); + iov[i].iov_len = udma->len[i]; + } + *num = i; + return &udma->used_len; +} + +static u32 *get_dma_buffer(int fd, void *key, + struct iovec iov[], unsigned int *num, u32 *irq) +{ + u32 buf[] = { LHREQ_GETDMA, (u32)key }; + unsigned long udma; + u32 *res; + + udma = write(fd, buf, sizeof(buf)); + if (udma == (unsigned long)-1) + return NULL; + + /* Kernel stashes irq in ->used_len. */ + res = dma2iov(udma, iov, num); + *irq = *res; + return res; +} + +static void trigger_irq(int fd, u32 irq) +{ + u32 buf[] = { LHREQ_IRQ, irq }; + if (write(fd, buf, sizeof(buf)) != 0) + err(1, "Triggering irq %i", irq); +} + +static void discard_iovec(struct iovec *iov, unsigned int *num) +{ + static char discard_buf[1024]; + *num = 1; + iov->iov_base = discard_buf; + iov->iov_len = sizeof(discard_buf); +} + +static struct termios orig_term; +static void restore_term(void) +{ + tcsetattr(STDIN_FILENO, TCSANOW, &orig_term); +} + +struct console_abort +{ + int count; + struct timeval start; +}; + +/* We DMA input to buffer bound at start of console page. */ +static bool handle_console_input(int fd, struct device *dev) +{ + u32 irq = 0, *lenp; + int len; + unsigned int num; + struct iovec iov[LGUEST_MAX_DMA_SECTIONS]; + struct console_abort *abort = dev->priv; + + lenp = get_dma_buffer(fd, dev->mem, iov, &num, &irq); + if (!lenp) { + warn("console: no dma buffer!"); + discard_iovec(iov, &num); + } + + len = readv(dev->fd, iov, num); + if (len <= 0) { + warnx("Failed to get console input, ignoring console."); + len = 0; + } + + if (lenp) { + *lenp = len; + trigger_irq(fd, irq); + } + + /* Three ^C within one second? Exit. */ + if (len == 1 && ((char *)iov[0].iov_base)[0] == 3) { + if (!abort->count++) + gettimeofday(&abort->start, NULL); + else if (abort->count == 3) { + struct timeval now; + gettimeofday(&now, NULL); + if (now.tv_sec <= abort->start.tv_sec+1) { + /* Make sure waker is not blocked in BREAK */ + u32 args[] = { LHREQ_BREAK, 0 }; + close(waker_fd); + write(fd, args, sizeof(args)); + exit(2); + } + abort->count = 0; + } + } else + abort->count = 0; + + if (!len) { + restore_term(); + return false; + } + return true; +} + +static u32 handle_console_output(int fd, const struct iovec *iov, + unsigned num, struct device*dev) +{ + return writev(STDOUT_FILENO, iov, num); +} + +static u32 handle_tun_output(int fd, const struct iovec *iov, + unsigned num, struct device *dev) +{ + /* Now we've seen output, we should warn if we can't get buffers. */ + *(bool *)dev->priv = true; + return writev(dev->fd, iov, num); +} + +static unsigned long peer_offset(unsigned int peernum) +{ + return 4 * peernum; +} + +static bool handle_tun_input(int fd, struct device *dev) +{ + u32 irq = 0, *lenp; + int len; + unsigned num; + struct iovec iov[LGUEST_MAX_DMA_SECTIONS]; + + lenp = get_dma_buffer(fd, dev->mem+peer_offset(NET_PEERNUM), iov, &num, + &irq); + if (!lenp) { + if (*(bool *)dev->priv) + warn("network: no dma buffer!"); + discard_iovec(iov, &num); + } + + len = readv(dev->fd, iov, num); + if (len <= 0) + err(1, "reading network"); + if (lenp) { + *lenp = len; + trigger_irq(fd, irq); + } + verbose("tun input packet len %i [%02x %02x] (%s)\n", len, + ((u8 *)iov[0].iov_base)[0], ((u8 *)iov[0].iov_base)[1], + lenp ? "sent" : "discarded"); + return true; +} + +static u32 handle_block_output(int fd, const struct iovec *iov, + unsigned num, struct device *dev) +{ + struct lguest_block_page *p = dev->mem; + u32 irq, *lenp; + unsigned int len, reply_num; + struct iovec reply[LGUEST_MAX_DMA_SECTIONS]; + off64_t device_len, off = (off64_t)p->sector * 512; + + device_len = *(off64_t *)dev->priv; + + if (off >= device_len) + err(1, "Bad offset %llu vs %llu", off, device_len); + if (lseek64(dev->fd, off, SEEK_SET) != off) + err(1, "Bad seek to sector %i", p->sector); + + verbose("Block: %s at offset %llu\n", p->type ? "WRITE" : "READ", off); + + lenp = get_dma_buffer(fd, dev->mem, reply, &reply_num, &irq); + if (!lenp) + err(1, "Block request didn't give us a dma buffer"); + + if (p->type) { + len = writev(dev->fd, iov, num); + if (off + len > device_len) { + ftruncate(dev->fd, device_len); + errx(1, "Write past end %llu+%u", off, len); + } + *lenp = 0; + } else { + len = readv(dev->fd, reply, reply_num); + *lenp = len; + } + + p->result = 1 + (p->bytes != len); + trigger_irq(fd, irq); + return 0; +} + +static void handle_output(int fd, unsigned long dma, unsigned long key, + struct device_list *devices) +{ + struct device *i; + u32 *lenp; + struct iovec iov[LGUEST_MAX_DMA_SECTIONS]; + unsigned num = 0; + + lenp = dma2iov(dma, iov, &num); + for (i = devices->dev; i; i = i->next) { + if (i->handle_output && key == i->watch_key) { + *lenp = i->handle_output(fd, iov, num, i); + return; + } + } + warnx("Pending dma %p, key %p", (void *)dma, (void *)key); +} + +static void handle_input(int fd, struct device_list *devices) +{ + struct timeval poll = { .tv_sec = 0, .tv_usec = 0 }; + + for (;;) { + struct device *i; + fd_set fds = devices->infds; + + if (select(devices->max_infd+1, &fds, NULL, NULL, &poll) == 0) + break; + + for (i = devices->dev; i; i = i->next) { + if (i->handle_input && FD_ISSET(i->fd, &fds)) { + if (!i->handle_input(fd, i)) { + FD_CLR(i->fd, &devices->infds); + /* Tell waker to ignore it too... */ + write(waker_fd, &i->fd, sizeof(i->fd)); + } + } + } + } +} + +static struct lguest_device_desc *new_dev_desc(u16 type, u16 features, + u16 num_pages) +{ + static unsigned long top = LGUEST_GUEST_TOP; + struct lguest_device_desc *desc; + + desc = malloc(sizeof(*desc)); + desc->type = type; + desc->num_pages = num_pages; + desc->features = features; + desc->status = 0; + if (num_pages) { + top -= num_pages*getpagesize(); + map_zeroed_pages(top, num_pages); + desc->pfn = top / getpagesize(); + } else + desc->pfn = 0; + return desc; +} + +static struct device *new_device(struct device_list *devices, + u16 type, u16 num_pages, u16 features, + int fd, + bool (*handle_input)(int, struct device *), + unsigned long watch_off, + u32 (*handle_output)(int, + const struct iovec *, + unsigned, + struct device *)) +{ + struct device *dev = malloc(sizeof(*dev)); + + /* Append to device list. */ + *devices->lastdev = dev; + dev->next = NULL; + devices->lastdev = &dev->next; + + dev->fd = fd; + if (handle_input) + set_fd(dev->fd, devices); + dev->desc = new_dev_desc(type, features, num_pages); + dev->mem = (void *)(dev->desc->pfn * getpagesize()); + dev->handle_input = handle_input; + dev->watch_key = (unsigned long)dev->mem + watch_off; + dev->handle_output = handle_output; + return dev; +} + +static void setup_console(struct device_list *devices) +{ + struct device *dev; + + if (tcgetattr(STDIN_FILENO, &orig_term) == 0) { + struct termios term = orig_term; + term.c_lflag &= ~(ISIG|ICANON|ECHO); + tcsetattr(STDIN_FILENO, TCSANOW, &term); + atexit(restore_term); + } + + /* We don't currently require a page for the console. */ + dev = new_device(devices, LGUEST_DEVICE_T_CONSOLE, 0, 0, + STDIN_FILENO, handle_console_input, + LGUEST_CONSOLE_DMA_KEY, handle_console_output); + dev->priv = malloc(sizeof(struct console_abort)); + ((struct console_abort *)dev->priv)->count = 0; + verbose("device %p: console\n", + (void *)(dev->desc->pfn * getpagesize())); +} + +static void setup_block_file(const char *filename, struct device_list *devices) +{ + int fd; + struct device *dev; + off64_t *device_len; + struct lguest_block_page *p; + + fd = open_or_die(filename, O_RDWR|O_LARGEFILE|O_DIRECT); + dev = new_device(devices, LGUEST_DEVICE_T_BLOCK, 1, + LGUEST_DEVICE_F_RANDOMNESS, + fd, NULL, 0, handle_block_output); + device_len = dev->priv = malloc(sizeof(*device_len)); + *device_len = lseek64(fd, 0, SEEK_END); + p = dev->mem; + + p->num_sectors = *device_len/512; + verbose("device %p: block %i sectors\n", + (void *)(dev->desc->pfn * getpagesize()), p->num_sectors); +} + +/* We use fnctl locks to reserve network slots (autocleanup!) */ +static unsigned int find_slot(int netfd, const char *filename) +{ + struct flock fl; + + fl.l_type = F_WRLCK; + fl.l_whence = SEEK_SET; + fl.l_len = 1; + for (fl.l_start = 0; + fl.l_start < getpagesize()/sizeof(struct lguest_net); + fl.l_start++) { + if (fcntl(netfd, F_SETLK, &fl) == 0) + return fl.l_start; + } + errx(1, "No free slots in network file %s", filename); +} + +static void setup_net_file(const char *filename, + struct device_list *devices) +{ + int netfd; + struct device *dev; + + netfd = open(filename, O_RDWR, 0); + if (netfd < 0) { + if (errno == ENOENT) { + netfd = open(filename, O_RDWR|O_CREAT, 0600); + if (netfd >= 0) { + char page[getpagesize()]; + memset(page, 0, sizeof(page)); + write(netfd, page, sizeof(page)); + } + } + if (netfd < 0) + err(1, "cannot open net file '%s'", filename); + } + + dev = new_device(devices, LGUEST_DEVICE_T_NET, 1, + find_slot(netfd, filename)|LGUEST_NET_F_NOCSUM, + -1, NULL, 0, NULL); + + /* We overwrite the /dev/zero mapping with the actual file. */ + if (mmap(dev->mem, getpagesize(), PROT_READ|PROT_WRITE, + MAP_FIXED|MAP_SHARED, netfd, 0) != dev->mem) + err(1, "could not mmap '%s'", filename); + verbose("device %p: shared net %s, peer %i\n", + (void *)(dev->desc->pfn * getpagesize()), filename, + dev->desc->features & ~LGUEST_NET_F_NOCSUM); +} + +static u32 str2ip(const char *ipaddr) +{ + unsigned int byte[4]; + + sscanf(ipaddr, "%u.%u.%u.%u", &byte[0], &byte[1], &byte[2], &byte[3]); + return (byte[0] << 24) | (byte[1] << 16) | (byte[2] << 8) | byte[3]; +} + +/* adapted from libbridge */ +static void add_to_bridge(int fd, const char *if_name, const char *br_name) +{ + int ifidx; + struct ifreq ifr; + + if (!*br_name) + errx(1, "must specify bridge name"); + + ifidx = if_nametoindex(if_name); + if (!ifidx) + errx(1, "interface %s does not exist!", if_name); + + strncpy(ifr.ifr_name, br_name, IFNAMSIZ); + ifr.ifr_ifindex = ifidx; + if (ioctl(fd, SIOCBRADDIF, &ifr) < 0) + err(1, "can't add %s to bridge %s", if_name, br_name); +} + +static void configure_device(int fd, const char *devname, u32 ipaddr, + unsigned char hwaddr[6]) +{ + struct ifreq ifr; + struct sockaddr_in *sin = (struct sockaddr_in *)&ifr.ifr_addr; + + memset(&ifr, 0, sizeof(ifr)); + strcpy(ifr.ifr_name, devname); + sin->sin_family = AF_INET; + sin->sin_addr.s_addr = htonl(ipaddr); + if (ioctl(fd, SIOCSIFADDR, &ifr) != 0) + err(1, "Setting %s interface address", devname); + ifr.ifr_flags = IFF_UP; + if (ioctl(fd, SIOCSIFFLAGS, &ifr) != 0) + err(1, "Bringing interface %s up", devname); + + if (ioctl(fd, SIOCGIFHWADDR, &ifr) != 0) + err(1, "getting hw address for %s", devname); + + memcpy(hwaddr, ifr.ifr_hwaddr.sa_data, 6); +} + +static void setup_tun_net(const char *arg, struct device_list *devices) +{ + struct device *dev; + struct ifreq ifr; + int netfd, ipfd; + u32 ip; + const char *br_name = NULL; + + netfd = open_or_die("/dev/net/tun", O_RDWR); + memset(&ifr, 0, sizeof(ifr)); + ifr.ifr_flags = IFF_TAP | IFF_NO_PI; + strcpy(ifr.ifr_name, "tap%d"); + if (ioctl(netfd, TUNSETIFF, &ifr) != 0) + err(1, "configuring /dev/net/tun"); + ioctl(netfd, TUNSETNOCSUM, 1); + + /* You will be peer 1: we should create enough jitter to randomize */ + dev = new_device(devices, LGUEST_DEVICE_T_NET, 1, + NET_PEERNUM|LGUEST_DEVICE_F_RANDOMNESS, netfd, + handle_tun_input, peer_offset(0), handle_tun_output); + dev->priv = malloc(sizeof(bool)); + *(bool *)dev->priv = false; + + ipfd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); + if (ipfd < 0) + err(1, "opening IP socket"); + + if (!strncmp(BRIDGE_PFX, arg, strlen(BRIDGE_PFX))) { + ip = INADDR_ANY; + br_name = arg + strlen(BRIDGE_PFX); + add_to_bridge(ipfd, ifr.ifr_name, br_name); + } else + ip = str2ip(arg); + + /* We are peer 0, ie. first slot. */ + configure_device(ipfd, ifr.ifr_name, ip, dev->mem); + + /* Set "promisc" bit: we want every single packet. */ + *((u8 *)dev->mem) |= 0x1; + + close(ipfd); + + verbose("device %p: tun net %u.%u.%u.%u\n", + (void *)(dev->desc->pfn * getpagesize()), + (u8)(ip>>24), (u8)(ip>>16), (u8)(ip>>8), (u8)ip); + if (br_name) + verbose("attached to bridge: %s\n", br_name); +} + +/* Now we know how much memory we have, we copy in device descriptors */ +static void map_device_descriptors(struct device_list *devs, unsigned long mem) +{ + struct device *i; + unsigned int num; + struct lguest_device_desc *descs; + + /* Device descriptor array sits just above top of normal memory */ + descs = map_zeroed_pages(mem, 1); + + for (i = devs->dev, num = 0; i; i = i->next, num++) { + if (num == LGUEST_MAX_DEVICES) + errx(1, "too many devices"); + verbose("Device %i: %s\n", num, + i->desc->type == LGUEST_DEVICE_T_NET ? "net" + : i->desc->type == LGUEST_DEVICE_T_CONSOLE ? "console" + : i->desc->type == LGUEST_DEVICE_T_BLOCK ? "block" + : "unknown"); + descs[num] = *i->desc; + free(i->desc); + i->desc = &descs[num]; + } +} + +static void __attribute__((noreturn)) +run_guest(int lguest_fd, struct device_list *device_list) +{ + for (;;) { + u32 args[] = { LHREQ_BREAK, 0 }; + unsigned long arr[2]; + int readval; + + /* We read from the /dev/lguest device to run the Guest. */ + readval = read(lguest_fd, arr, sizeof(arr)); + + if (readval == sizeof(arr)) { + handle_output(lguest_fd, arr[0], arr[1], device_list); + continue; + } else if (errno == ENOENT) { + char reason[1024] = { 0 }; + read(lguest_fd, reason, sizeof(reason)-1); + errx(1, "%s", reason); + } else if (errno != EAGAIN) + err(1, "Running guest failed"); + handle_input(lguest_fd, device_list); + if (write(lguest_fd, args, sizeof(args)) < 0) + err(1, "Resetting break"); + } +} + +static struct option opts[] = { + { "verbose", 0, NULL, 'v' }, + { "sharenet", 1, NULL, 's' }, + { "tunnet", 1, NULL, 't' }, + { "block", 1, NULL, 'b' }, + { "initrd", 1, NULL, 'i' }, + { NULL }, +}; +static void usage(void) +{ + errx(1, "Usage: lguest [--verbose] " + "[--sharenet=<filename>|--tunnet=(<ipaddr>|bridge:<bridgename>)\n" + "|--block=<filename>|--initrd=<filename>]...\n" + "<mem-in-mb> vmlinux [args...]"); +} + +int main(int argc, char *argv[]) +{ + unsigned long mem, pgdir, start, page_offset, initrd_size = 0; + int c, lguest_fd; + struct device_list device_list; + void *boot = (void *)0; + const char *initrd_name = NULL; + + device_list.max_infd = -1; + device_list.dev = NULL; + device_list.lastdev = &device_list.dev; + FD_ZERO(&device_list.infds); + + while ((c = getopt_long(argc, argv, "v", opts, NULL)) != EOF) { + switch (c) { + case 'v': + verbose = true; + break; + case 's': + setup_net_file(optarg, &device_list); + break; + case 't': + setup_tun_net(optarg, &device_list); + break; + case 'b': + setup_block_file(optarg, &device_list); + break; + case 'i': + initrd_name = optarg; + break; + default: + warnx("Unknown argument %s", argv[optind]); + usage(); + } + } + if (optind + 2 > argc) + usage(); + + /* We need a console device */ + setup_console(&device_list); + + /* First we map /dev/zero over all of guest-physical memory. */ + mem = atoi(argv[optind]) * 1024 * 1024; + map_zeroed_pages(0, mem / getpagesize()); + + /* Now we load the kernel */ + start = load_kernel(open_or_die(argv[optind+1], O_RDONLY), + &page_offset); + + /* Write the device descriptors into memory. */ + map_device_descriptors(&device_list, mem); + + /* Map the initrd image if requested */ + if (initrd_name) { + initrd_size = load_initrd(initrd_name, mem); + *(unsigned long *)(boot+0x218) = mem - initrd_size; + *(unsigned long *)(boot+0x21c) = initrd_size; + *(unsigned char *)(boot+0x210) = 0xFF; + } + + /* Set up the initial linar pagetables. */ + pgdir = setup_pagetables(mem, initrd_size, page_offset); + + /* E820 memory map: ours is a simple, single region. */ + *(char*)(boot+E820NR) = 1; + *((struct e820entry *)(boot+E820MAP)) + = ((struct e820entry) { 0, mem, E820_RAM }); + /* Command line pointer and command line (at 4096) */ + *(void **)(boot + 0x228) = boot + 4096; + concat(boot + 4096, argv+optind+2); + /* Paravirt type: 1 == lguest */ + *(int *)(boot + 0x23c) = 1; + + lguest_fd = tell_kernel(pgdir, start, page_offset); + waker_fd = setup_waker(lguest_fd, &device_list); + + run_guest(lguest_fd, &device_list); +} diff --git a/Documentation/lguest/lguest.txt b/Documentation/lguest/lguest.txt new file mode 100644 index 000000000000..821617bd6c04 --- /dev/null +++ b/Documentation/lguest/lguest.txt @@ -0,0 +1,129 @@ +Rusty's Remarkably Unreliable Guide to Lguest + - or, A Young Coder's Illustrated Hypervisor +http://lguest.ozlabs.org + +Lguest is designed to be a minimal hypervisor for the Linux kernel, for +Linux developers and users to experiment with virtualization with the +minimum of complexity. Nonetheless, it should have sufficient +features to make it useful for specific tasks, and, of course, you are +encouraged to fork and enhance it. + +Features: + +- Kernel module which runs in a normal kernel. +- Simple I/O model for communication. +- Simple program to create new guests. +- Logo contains cute puppies: http://lguest.ozlabs.org + +Developer features: + +- Fun to hack on. +- No ABI: being tied to a specific kernel anyway, you can change anything. +- Many opportunities for improvement or feature implementation. + +Running Lguest: + +- Lguest runs the same kernel as guest and host. You can configure + them differently, but usually it's easiest not to. + + You will need to configure your kernel with the following options: + + CONFIG_HIGHMEM64G=n ("High Memory Support" "64GB")[1] + CONFIG_TUN=y/m ("Universal TUN/TAP device driver support") + CONFIG_EXPERIMENTAL=y ("Prompt for development and/or incomplete code/drivers") + CONFIG_PARAVIRT=y ("Paravirtualization support (EXPERIMENTAL)") + CONFIG_LGUEST=y/m ("Linux hypervisor example code") + + and I recommend: + CONFIG_HZ=100 ("Timer frequency")[2] + +- A tool called "lguest" is available in this directory: type "make" + to build it. If you didn't build your kernel in-tree, use "make + O=<builddir>". + +- Create or find a root disk image. There are several useful ones + around, such as the xm-test tiny root image at + http://xm-test.xensource.com/ramdisks/initrd-1.1-i386.img + + For more serious work, I usually use a distribution ISO image and + install it under qemu, then make multiple copies: + + dd if=/dev/zero of=rootfile bs=1M count=2048 + qemu -cdrom image.iso -hda rootfile -net user -net nic -boot d + +- "modprobe lg" if you built it as a module. + +- Run an lguest as root: + + Documentation/lguest/lguest 64m vmlinux --tunnet=192.168.19.1 --block=rootfile root=/dev/lgba + + Explanation: + 64m: the amount of memory to use. + + vmlinux: the kernel image found in the top of your build directory. You + can also use a standard bzImage. + + --tunnet=192.168.19.1: configures a "tap" device for networking with this + IP address. + + --block=rootfile: a file or block device which becomes /dev/lgba + inside the guest. + + root=/dev/lgba: this (and anything else on the command line) are + kernel boot parameters. + +- Configuring networking. I usually have the host masquerade, using + "iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE" and "echo 1 > + /proc/sys/net/ipv4/ip_forward". In this example, I would configure + eth0 inside the guest at 192.168.19.2. + + Another method is to bridge the tap device to an external interface + using --tunnet=bridge:<bridgename>, and perhaps run dhcp on the guest + to obtain an IP address. The bridge needs to be configured first: + this option simply adds the tap interface to it. + + A simple example on my system: + + ifconfig eth0 0.0.0.0 + brctl addbr lg0 + ifconfig lg0 up + brctl addif lg0 eth0 + dhclient lg0 + + Then use --tunnet=bridge:lg0 when launching the guest. + + See http://linux-net.osdl.org/index.php/Bridge for general information + on how to get bridging working. + +- You can also create an inter-guest network using + "--sharenet=<filename>": any two guests using the same file are on + the same network. This file is created if it does not exist. + +Lguest I/O model: + +Lguest uses a simplified DMA model plus shared memory for I/O. Guests +can communicate with each other if they share underlying memory +(usually by the lguest program mmaping the same file), but they can +use any non-shared memory to communicate with the lguest process. + +Guests can register DMA buffers at any key (must be a valid physical +address) using the LHCALL_BIND_DMA(key, dmabufs, num<<8|irq) +hypercall. "dmabufs" is the physical address of an array of "num" +"struct lguest_dma": each contains a used_len, and an array of +physical addresses and lengths. When a transfer occurs, the +"used_len" field of one of the buffers which has used_len 0 will be +set to the length transferred and the irq will fire. + +Using an irq value of 0 unbinds the dma buffers. + +To send DMA, the LHCALL_SEND_DMA(key, dma_physaddr) hypercall is used, +and the bytes used is written to the used_len field. This can be 0 if +noone else has bound a DMA buffer to that key or some other error. +DMA buffers bound by the same guest are ignored. + +Cheers! +Rusty Russell rusty@rustcorp.com.au. + +[1] These are on various places on the TODO list, waiting for you to + get annoyed enough at the limitation to fix it. +[2] Lguest is not yet tickless when idle. See [1]. diff --git a/Documentation/oops-tracing.txt b/Documentation/oops-tracing.txt index 23e6dde7eea6..7f60dfe642ca 100644 --- a/Documentation/oops-tracing.txt +++ b/Documentation/oops-tracing.txt @@ -251,6 +251,8 @@ characters, each representing a particular tainted value. 7: 'U' if a user or user application specifically requested that the Tainted flag be set, ' ' otherwise. + 8: 'D' if the kernel has died recently, i.e. there was an OOPS or BUG. + The primary reason for the 'Tainted: ' string is to tell kernel debuggers if this is a clean kernel or if anything unusual has occurred. Tainting is permanent: even if an offending module is diff --git a/Documentation/power/freezing-of-tasks.txt b/Documentation/power/freezing-of-tasks.txt new file mode 100644 index 000000000000..af1a282c71a3 --- /dev/null +++ b/Documentation/power/freezing-of-tasks.txt @@ -0,0 +1,160 @@ +Freezing of tasks + (C) 2007 Rafael J. Wysocki <rjw@sisk.pl>, GPL + +I. What is the freezing of tasks? + +The freezing of tasks is a mechanism by which user space processes and some +kernel threads are controlled during hibernation or system-wide suspend (on some +architectures). + +II. How does it work? + +There are four per-task flags used for that, PF_NOFREEZE, PF_FROZEN, TIF_FREEZE +and PF_FREEZER_SKIP (the last one is auxiliary). The tasks that have +PF_NOFREEZE unset (all user space processes and some kernel threads) are +regarded as 'freezable' and treated in a special way before the system enters a +suspend state as well as before a hibernation image is created (in what follows +we only consider hibernation, but the description also applies to suspend). + +Namely, as the first step of the hibernation procedure the function +freeze_processes() (defined in kernel/power/process.c) is called. It executes +try_to_freeze_tasks() that sets TIF_FREEZE for all of the freezable tasks and +sends a fake signal to each of them. A task that receives such a signal and has +TIF_FREEZE set, should react to it by calling the refrigerator() function +(defined in kernel/power/process.c), which sets the task's PF_FROZEN flag, +changes its state to TASK_UNINTERRUPTIBLE and makes it loop until PF_FROZEN is +cleared for it. Then, we say that the task is 'frozen' and therefore the set of +functions handling this mechanism is called 'the freezer' (these functions are +defined in kernel/power/process.c and include/linux/freezer.h). User space +processes are generally frozen before kernel threads. + +It is not recommended to call refrigerator() directly. Instead, it is +recommended to use the try_to_freeze() function (defined in +include/linux/freezer.h), that checks the task's TIF_FREEZE flag and makes the +task enter refrigerator() if the flag is set. + +For user space processes try_to_freeze() is called automatically from the +signal-handling code, but the freezable kernel threads need to call it +explicitly in suitable places. The code to do this may look like the following: + + do { + hub_events(); + wait_event_interruptible(khubd_wait, + !list_empty(&hub_event_list)); + try_to_freeze(); + } while (!signal_pending(current)); + +(from drivers/usb/core/hub.c::hub_thread()). + +If a freezable kernel thread fails to call try_to_freeze() after the freezer has +set TIF_FREEZE for it, the freezing of tasks will fail and the entire +hibernation operation will be cancelled. For this reason, freezable kernel +threads must call try_to_freeze() somewhere. + +After the system memory state has been restored from a hibernation image and +devices have been reinitialized, the function thaw_processes() is called in +order to clear the PF_FROZEN flag for each frozen task. Then, the tasks that +have been frozen leave refrigerator() and continue running. + +III. Which kernel threads are freezable? + +Kernel threads are not freezable by default. However, a kernel thread may clear +PF_NOFREEZE for itself by calling set_freezable() (the resetting of PF_NOFREEZE +directly is strongly discouraged). From this point it is regarded as freezable +and must call try_to_freeze() in a suitable place. + +IV. Why do we do that? + +Generally speaking, there is a couple of reasons to use the freezing of tasks: + +1. The principal reason is to prevent filesystems from being damaged after +hibernation. At the moment we have no simple means of checkpointing +filesystems, so if there are any modifications made to filesystem data and/or +metadata on disks, we cannot bring them back to the state from before the +modifications. At the same time each hibernation image contains some +filesystem-related information that must be consistent with the state of the +on-disk data and metadata after the system memory state has been restored from +the image (otherwise the filesystems will be damaged in a nasty way, usually +making them almost impossible to repair). We therefore freeze tasks that might +cause the on-disk filesystems' data and metadata to be modified after the +hibernation image has been created and before the system is finally powered off. +The majority of these are user space processes, but if any of the kernel threads +may cause something like this to happen, they have to be freezable. + +2. The second reason is to prevent user space processes and some kernel threads +from interfering with the suspending and resuming of devices. A user space +process running on a second CPU while we are suspending devices may, for +example, be troublesome and without the freezing of tasks we would need some +safeguards against race conditions that might occur in such a case. + +Although Linus Torvalds doesn't like the freezing of tasks, he said this in one +of the discussions on LKML (http://lkml.org/lkml/2007/4/27/608): + +"RJW:> Why we freeze tasks at all or why we freeze kernel threads? + +Linus: In many ways, 'at all'. + +I _do_ realize the IO request queue issues, and that we cannot actually do +s2ram with some devices in the middle of a DMA. So we want to be able to +avoid *that*, there's no question about that. And I suspect that stopping +user threads and then waiting for a sync is practically one of the easier +ways to do so. + +So in practice, the 'at all' may become a 'why freeze kernel threads?' and +freezing user threads I don't find really objectionable." + +Still, there are kernel threads that may want to be freezable. For example, if +a kernel that belongs to a device driver accesses the device directly, it in +principle needs to know when the device is suspended, so that it doesn't try to +access it at that time. However, if the kernel thread is freezable, it will be +frozen before the driver's .suspend() callback is executed and it will be +thawed after the driver's .resume() callback has run, so it won't be accessing +the device while it's suspended. + +3. Another reason for freezing tasks is to prevent user space processes from +realizing that hibernation (or suspend) operation takes place. Ideally, user +space processes should not notice that such a system-wide operation has occurred +and should continue running without any problems after the restore (or resume +from suspend). Unfortunately, in the most general case this is quite difficult +to achieve without the freezing of tasks. Consider, for example, a process +that depends on all CPUs being online while it's running. Since we need to +disable nonboot CPUs during the hibernation, if this process is not frozen, it +may notice that the number of CPUs has changed and may start to work incorrectly +because of that. + +V. Are there any problems related to the freezing of tasks? + +Yes, there are. + +First of all, the freezing of kernel threads may be tricky if they depend one +on another. For example, if kernel thread A waits for a completion (in the +TASK_UNINTERRUPTIBLE state) that needs to be done by freezable kernel thread B +and B is frozen in the meantime, then A will be blocked until B is thawed, which +may be undesirable. That's why kernel threads are not freezable by default. + +Second, there are the following two problems related to the freezing of user +space processes: +1. Putting processes into an uninterruptible sleep distorts the load average. +2. Now that we have FUSE, plus the framework for doing device drivers in +userspace, it gets even more complicated because some userspace processes are +now doing the sorts of things that kernel threads do +(https://lists.linux-foundation.org/pipermail/linux-pm/2007-May/012309.html). + +The problem 1. seems to be fixable, although it hasn't been fixed so far. The +other one is more serious, but it seems that we can work around it by using +hibernation (and suspend) notifiers (in that case, though, we won't be able to +avoid the realization by the user space processes that the hibernation is taking +place). + +There are also problems that the freezing of tasks tends to expose, although +they are not directly related to it. For example, if request_firmware() is +called from a device driver's .resume() routine, it will timeout and eventually +fail, because the user land process that should respond to the request is frozen +at this point. So, seemingly, the failure is due to the freezing of tasks. +Suppose, however, that the firmware file is located on a filesystem accessible +only through another device that hasn't been resumed yet. In that case, +request_firmware() will fail regardless of whether or not the freezing of tasks +is used. Consequently, the problem is not really related to the freezing of +tasks, since it generally exists anyway. [The solution to this particular +problem is to keep the firmware in memory after it's loaded for the first time +and upload if from memory to the device whenever necessary.] diff --git a/Documentation/power/kernel_threads.txt b/Documentation/power/kernel_threads.txt deleted file mode 100644 index fb57784986b1..000000000000 --- a/Documentation/power/kernel_threads.txt +++ /dev/null @@ -1,40 +0,0 @@ -KERNEL THREADS - - -Freezer - -Upon entering a suspended state the system will freeze all -tasks. This is done by delivering pseudosignals. This affects -kernel threads, too. To successfully freeze a kernel thread -the thread has to check for the pseudosignal and enter the -refrigerator. Code to do this looks like this: - - do { - hub_events(); - wait_event_interruptible(khubd_wait, !list_empty(&hub_event_list)); - try_to_freeze(); - } while (!signal_pending(current)); - -from drivers/usb/core/hub.c::hub_thread() - - -The Unfreezable - -Some kernel threads however, must not be frozen. The kernel must -be able to finish pending IO operations and later on be able to -write the memory image to disk. Kernel threads needed to do IO -must stay awake. Such threads must mark themselves unfreezable -like this: - - /* - * This thread doesn't need any user-level access, - * so get rid of all our resources. - */ - daemonize("usb-storage"); - - current->flags |= PF_NOFREEZE; - -from drivers/usb/storage/usb.c::usb_stor_control_thread() - -Such drivers are themselves responsible for staying quiet during -the actual snapshotting. diff --git a/Documentation/power/notifiers.txt b/Documentation/power/notifiers.txt new file mode 100644 index 000000000000..9293e4bc857c --- /dev/null +++ b/Documentation/power/notifiers.txt @@ -0,0 +1,50 @@ +Suspend notifiers + (C) 2007 Rafael J. Wysocki <rjw@sisk.pl>, GPL + +There are some operations that device drivers may want to carry out in their +.suspend() routines, but shouldn't, because they can cause the hibernation or +suspend to fail. For example, a driver may want to allocate a substantial amount +of memory (like 50 MB) in .suspend(), but that shouldn't be done after the +swsusp's memory shrinker has run. + +Also, there may be some operations, that subsystems want to carry out before a +hibernation/suspend or after a restore/resume, requiring the system to be fully +functional, so the drivers' .suspend() and .resume() routines are not suitable +for this purpose. For example, device drivers may want to upload firmware to +their devices after a restore from a hibernation image, but they cannot do it by +calling request_firmware() from their .resume() routines (user land processes +are frozen at this point). The solution may be to load the firmware into +memory before processes are frozen and upload it from there in the .resume() +routine. Of course, a hibernation notifier may be used for this purpose. + +The subsystems that have such needs can register suspend notifiers that will be +called upon the following events by the suspend core: + +PM_HIBERNATION_PREPARE The system is going to hibernate or suspend, tasks will + be frozen immediately. + +PM_POST_HIBERNATION The system memory state has been restored from a + hibernation image or an error occured during the + hibernation. Device drivers' .resume() callbacks have + been executed and tasks have been thawed. + +PM_SUSPEND_PREPARE The system is preparing for a suspend. + +PM_POST_SUSPEND The system has just resumed or an error occured during + the suspend. Device drivers' .resume() callbacks have + been executed and tasks have been thawed. + +It is generally assumed that whatever the notifiers do for +PM_HIBERNATION_PREPARE, should be undone for PM_POST_HIBERNATION. Analogously, +operations performed for PM_SUSPEND_PREPARE should be reversed for +PM_POST_SUSPEND. Additionally, all of the notifiers are called for +PM_POST_HIBERNATION if one of them fails for PM_HIBERNATION_PREPARE, and +all of the notifiers are called for PM_POST_SUSPEND if one of them fails for +PM_SUSPEND_PREPARE. + +The hibernation and suspend notifiers are called with pm_mutex held. They are +defined in the usual way, but their last argument is meaningless (it is always +NULL). To register and/or unregister a suspend notifier use the functions +register_pm_notifier() and unregister_pm_notifier(), respectively, defined in +include/linux/suspend.h . If you don't need to unregister the notifier, you can +also use the pm_notifier() macro defined in include/linux/suspend.h . diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt index 152b510d1bbb..aea7e9209667 100644 --- a/Documentation/power/swsusp.txt +++ b/Documentation/power/swsusp.txt @@ -140,21 +140,11 @@ should be sent to the mailing list available through the suspend2 website, and not to the Linux Kernel Mailing List. We are working toward merging suspend2 into the mainline kernel. -Q: A kernel thread must voluntarily freeze itself (call 'refrigerator'). -I found some kernel threads that don't do it, and they don't freeze -so the system can't sleep. Is this a known behavior? - -A: All such kernel threads need to be fixed, one by one. Select the -place where the thread is safe to be frozen (no kernel semaphores -should be held at that point and it must be safe to sleep there), and -add: - - try_to_freeze(); - -If the thread is needed for writing the image to storage, you should -instead set the PF_NOFREEZE process flag when creating the thread (and -be very careful). +Q: What is the freezing of tasks and why are we using it? +A: The freezing of tasks is a mechanism by which user space processes and some +kernel threads are controlled during hibernation or system-wide suspend (on some +architectures). See freezing-of-tasks.txt for details. Q: What is the difference between "platform" and "shutdown"? diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 0c2434822094..76733a3962f0 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1250,6 +1250,12 @@ platforms are moved over to use the flattened-device-tree model. network device. This is used by the bootwrapper to interpret MAC addresses passed by the firmware when no information other than indices is available to associate an address with a device. + - phy-connection-type : a string naming the controller/PHY interface type, + i.e., "mii" (default), "rmii", "gmii", "rgmii", "rgmii-id", "sgmii", + "tbi", or "rtbi". This property is only really needed if the connection + is of type "rgmii-id", as all other connection types are detected by + hardware. + Example: diff --git a/Documentation/rtc.txt b/Documentation/rtc.txt index 7c701b88d6d5..c931d613f641 100644 --- a/Documentation/rtc.txt +++ b/Documentation/rtc.txt @@ -385,7 +385,7 @@ test_PIE: /* not all RTCs support periodic IRQs */ if (errno == ENOTTY) { fprintf(stderr, "\nNo periodic IRQ support\n"); - return 0; + goto done; } perror("RTC_IRQP_READ ioctl"); exit(errno); diff --git a/Documentation/spi/spi-lm70llp b/Documentation/spi/spi-lm70llp new file mode 100644 index 000000000000..154bd02220b9 --- /dev/null +++ b/Documentation/spi/spi-lm70llp @@ -0,0 +1,69 @@ +spi_lm70llp : LM70-LLP parport-to-SPI adapter +============================================== + +Supported board/chip: + * National Semiconductor LM70 LLP evaluation board + Datasheet: http://www.national.com/pf/LM/LM70.html + +Author: + Kaiwan N Billimoria <kaiwan@designergraphix.com> + +Description +----------- +This driver provides glue code connecting a National Semiconductor LM70 LLP +temperature sensor evaluation board to the kernel's SPI core subsystem. + +In effect, this driver turns the parallel port interface on the eval board +into a SPI bus with a single device, which will be driven by the generic +LM70 driver (drivers/hwmon/lm70.c). + +The hardware interfacing on the LM70 LLP eval board is as follows: + + Parallel LM70 LLP + Port Direction JP2 Header + ----------- --------- ---------------- + D0 2 - - + D1 3 --> V+ 5 + D2 4 --> V+ 5 + D3 5 --> V+ 5 + D4 6 --> V+ 5 + D5 7 --> nCS 8 + D6 8 --> SCLK 3 + D7 9 --> SI/O 5 + GND 25 - GND 7 + Select 13 <-- SI/O 1 + ----------- --------- ---------------- + +Note that since the LM70 uses a "3-wire" variant of SPI, the SI/SO pin +is connected to both pin D7 (as Master Out) and Select (as Master In) +using an arrangment that lets either the parport or the LM70 pull the +pin low. This can't be shared with true SPI devices, but other 3-wire +devices might share the same SI/SO pin. + +The bitbanger routine in this driver (lm70_txrx) is called back from +the bound "hwmon/lm70" protocol driver through its sysfs hook, using a +spi_write_then_read() call. It performs Mode 0 (SPI/Microwire) bitbanging. +The lm70 driver then inteprets the resulting digital temperature value +and exports it through sysfs. + +A "gotcha": National Semiconductor's LM70 LLP eval board circuit schematic +shows that the SI/O line from the LM70 chip is connected to the base of a +transistor Q1 (and also a pullup, and a zener diode to D7); while the +collector is tied to VCC. + +Interpreting this circuit, when the LM70 SI/O line is High (or tristate +and not grounded by the host via D7), the transistor conducts and switches +the collector to zero, which is reflected on pin 13 of the DB25 parport +connector. When SI/O is Low (driven by the LM70 or the host) on the other +hand, the transistor is cut off and the voltage tied to it's collector is +reflected on pin 13 as a High level. + +So: the getmiso inline routine in this driver takes this fact into account, +inverting the value read at pin 13. + + +Thanks to +--------- +o David Brownell for mentoring the SPI-side driver development. +o Dr.Craig Hollabaugh for the (early) "manual" bitbanging driver version. +o Nadir Billimoria for help interpreting the circuit schematic. diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index df3ff2095f9d..a0ccc5b60260 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -38,7 +38,8 @@ Currently, these files are in /proc/sys/vm: dirty_ratio, dirty_background_ratio, dirty_expire_centisecs, dirty_writeback_centisecs, vfs_cache_pressure, laptop_mode, -block_dump, swap_token_timeout, drop-caches: +block_dump, swap_token_timeout, drop-caches, +hugepages_treat_as_movable: See Documentation/filesystems/proc.txt diff --git a/Documentation/video4linux/CARDLIST.bttv b/Documentation/video4linux/CARDLIST.bttv index b60639130a51..177159c5f4c4 100644 --- a/Documentation/video4linux/CARDLIST.bttv +++ b/Documentation/video4linux/CARDLIST.bttv @@ -66,7 +66,7 @@ 65 -> Lifeview FlyVideo 2000S LR90 66 -> Terratec TValueRadio [153b:1135,153b:ff3b] 67 -> IODATA GV-BCTV4/PCI [10fc:4050] - 68 -> 3Dfx VoodooTV FM (Euro), VoodooTV 200 (USA) [121a:3000,10b4:2637] + 68 -> 3Dfx VoodooTV FM (Euro) [10b4:2637] 69 -> Active Imaging AIMMS 70 -> Prolink Pixelview PV-BT878P+ (Rev.4C,8E) 71 -> Lifeview FlyVideo 98EZ (capture only) LR51 [1851:1851] @@ -145,3 +145,5 @@ 144 -> MagicTV 145 -> SSAI Security Video Interface [4149:5353] 146 -> SSAI Ultrasound Video Interface [414a:5353] +147 -> VoodooTV 200 (USA) [121a:3000] +148 -> DViCO FusionHDTV 2 [dbc0:d200] diff --git a/Documentation/video4linux/CARDLIST.cx88 b/Documentation/video4linux/CARDLIST.cx88 index 60f838beb9c8..82ac8250e978 100644 --- a/Documentation/video4linux/CARDLIST.cx88 +++ b/Documentation/video4linux/CARDLIST.cx88 @@ -55,3 +55,4 @@ 54 -> Norwood Micro TV Tuner 55 -> Shenzhen Tungsten Ages Tech TE-DTV-250 / Swann OEM [c180:c980] 56 -> Hauppauge WinTV-HVR1300 DVB-T/Hybrid MPEG Encoder [0070:9600,0070:9601,0070:9602] + 57 -> ADS Tech Instant Video PCI [1421:0390] diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index 712e8c8333cc..3f8aeab50a10 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -114,3 +114,4 @@ 113 -> Elitegroup ECS TVP3XP FM1246 Tuner Card (PAL,FM) [1019:4cb6] 114 -> KWorld DVB-T 210 [17de:7250] 115 -> Sabrent PCMCIA TV-PCB05 [0919:2003] +116 -> 10MOONS TM300 TV Card [1131:2304] diff --git a/Documentation/video4linux/CARDLIST.tuner b/Documentation/video4linux/CARDLIST.tuner index 44134f04b82a..a88c02d23805 100644 --- a/Documentation/video4linux/CARDLIST.tuner +++ b/Documentation/video4linux/CARDLIST.tuner @@ -40,7 +40,7 @@ tuner=38 - Philips PAL/SECAM multi (FM1216ME MK3) tuner=39 - LG NTSC (newer TAPC series) tuner=40 - HITACHI V7-J180AT tuner=41 - Philips PAL_MK (FI1216 MK) -tuner=42 - Philips 1236D ATSC/NTSC dual in +tuner=42 - Philips FCV1236D ATSC/NTSC dual in tuner=43 - Philips NTSC MK3 (FM1236MK3 or FM1236/F) tuner=44 - Philips 4 in 1 (ATI TV Wonder Pro/Conexant) tuner=45 - Microtune 4049 FM5 @@ -72,3 +72,4 @@ tuner=70 - Samsung TCPN 2121P30A tuner=71 - Xceive xc3028 tuner=72 - Thomson FE6600 tuner=73 - Samsung TCPG 6121P30A +tuner=75 - Philips TEA5761 FM Radio diff --git a/Documentation/video4linux/sn9c102.txt b/Documentation/video4linux/sn9c102.txt index 279717c96f63..1ffad19ce891 100644 --- a/Documentation/video4linux/sn9c102.txt +++ b/Documentation/video4linux/sn9c102.txt @@ -436,7 +436,7 @@ HV7131D Hynix Semiconductor | Yes No No No HV7131R Hynix Semiconductor | No Yes Yes Yes MI-0343 Micron Technology | Yes No No No MI-0360 Micron Technology | No Yes Yes Yes -OV7630 OmniVision Technologies | Yes Yes No No +OV7630 OmniVision Technologies | Yes Yes Yes Yes OV7660 OmniVision Technologies | No No Yes Yes PAS106B PixArt Imaging | Yes No No No PAS202B PixArt Imaging | Yes Yes No No @@ -583,6 +583,7 @@ order): - Bertrik Sikken, who reverse-engineered and documented the Huffman compression algorithm used in the SN9C101, SN9C102 and SN9C103 controllers and implemented the first decoder; +- Ronny Standke for the donation of a webcam; - Mizuno Takafumi for the donation of a webcam; - an "anonymous" donator (who didn't want his name to be revealed) for the donation of a webcam. diff --git a/Documentation/video4linux/zr364xx.txt b/Documentation/video4linux/zr364xx.txt index c76992d0ff4d..4d9a0c33f2fd 100644 --- a/Documentation/video4linux/zr364xx.txt +++ b/Documentation/video4linux/zr364xx.txt @@ -62,4 +62,4 @@ Vendor Product Distributor Model 0x0784 0x0040 Traveler Slimline X5 0x06d6 0x0034 Trust Powerc@m 750 0x0a17 0x0062 Pentax Optio 50L - +0x06d6 0x003b Trust Powerc@m 970Z diff --git a/Documentation/vm/slub.txt b/Documentation/vm/slub.txt index df812b03b65d..d17f324db9f5 100644 --- a/Documentation/vm/slub.txt +++ b/Documentation/vm/slub.txt @@ -127,13 +127,20 @@ SLUB Debug output Here is a sample of slub debug output: -*** SLUB kmalloc-8: Redzone Active@0xc90f6d20 slab 0xc528c530 offset=3360 flags=0x400000c3 inuse=61 freelist=0xc90f6d58 - Bytes b4 0xc90f6d10: 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ - Object 0xc90f6d20: 31 30 31 39 2e 30 30 35 1019.005 - Redzone 0xc90f6d28: 00 cc cc cc . -FreePointer 0xc90f6d2c -> 0xc90f6d58 -Last alloc: get_modalias+0x61/0xf5 jiffies_ago=53 cpu=1 pid=554 -Filler 0xc90f6d50: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ +==================================================================== +BUG kmalloc-8: Redzone overwritten +-------------------------------------------------------------------- + +INFO: 0xc90f6d28-0xc90f6d2b. First byte 0x00 instead of 0xcc +INFO: Slab 0xc528c530 flags=0x400000c3 inuse=61 fp=0xc90f6d58 +INFO: Object 0xc90f6d20 @offset=3360 fp=0xc90f6d58 +INFO: Allocated in get_modalias+0x61/0xf5 age=53 cpu=1 pid=554 + +Bytes b4 0xc90f6d10: 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ + Object 0xc90f6d20: 31 30 31 39 2e 30 30 35 1019.005 + Redzone 0xc90f6d28: 00 cc cc cc . + Padding 0xc90f6d50: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ + [<c010523d>] dump_trace+0x63/0x1eb [<c01053df>] show_trace_log_lvl+0x1a/0x2f [<c010601d>] show_trace+0x12/0x14 @@ -155,74 +162,108 @@ Filler 0xc90f6d50: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ [<c0104112>] sysenter_past_esp+0x5f/0x99 [<b7f7b410>] 0xb7f7b410 ======================= -@@@ SLUB kmalloc-8: Restoring redzone (0xcc) from 0xc90f6d28-0xc90f6d2b +FIX kmalloc-8: Restoring Redzone 0xc90f6d28-0xc90f6d2b=0xcc +If SLUB encounters a corrupted object (full detection requires the kernel +to be booted with slub_debug) then the following output will be dumped +into the syslog: -If SLUB encounters a corrupted object then it will perform the following -actions: - -1. Isolation and report of the issue +1. Description of the problem encountered This will be a message in the system log starting with -*** SLUB <slab cache affected>: <What went wrong>@<object address> -offset=<offset of object into slab> flags=<slabflags> -inuse=<objects in use in this slab> freelist=<first free object in slab> +=============================================== +BUG <slab cache affected>: <What went wrong> +----------------------------------------------- -2. Report on how the problem was dealt with in order to ensure the continued -operation of the system. +INFO: <corruption start>-<corruption_end> <more info> +INFO: Slab <address> <slab information> +INFO: Object <address> <object information> +INFO: Allocated in <kernel function> age=<jiffies since alloc> cpu=<allocated by + cpu> pid=<pid of the process> +INFO: Freed in <kernel function> age=<jiffies since free> cpu=<freed by cpu> + pid=<pid of the process> -These are messages in the system log beginning with - -@@@ SLUB <slab cache affected>: <corrective action taken> +(Object allocation / free information is only available if SLAB_STORE_USER is +set for the slab. slub_debug sets that option) +2. The object contents if an object was involved. -In the above sample SLUB found that the Redzone of an active object has -been overwritten. Here a string of 8 characters was written into a slab that -has the length of 8 characters. However, a 8 character string needs a -terminating 0. That zero has overwritten the first byte of the Redzone field. -After reporting the details of the issue encountered the @@@ SLUB message -tell us that SLUB has restored the redzone to its proper value and then -system operations continue. - -Various types of lines can follow the @@@ SLUB line: +Various types of lines can follow the BUG SLUB line: Bytes b4 <address> : <bytes> - Show a few bytes before the object where the problem was detected. + Shows a few bytes before the object where the problem was detected. Can be useful if the corruption does not stop with the start of the object. Object <address> : <bytes> The bytes of the object. If the object is inactive then the bytes - typically contain poisoning values. Any non-poison value shows a + typically contain poison values. Any non-poison value shows a corruption by a write after free. Redzone <address> : <bytes> - The redzone following the object. The redzone is used to detect + The Redzone following the object. The Redzone is used to detect writes after the object. All bytes should always have the same value. If there is any deviation then it is due to a write after the object boundary. -Freepointer - The pointer to the next free object in the slab. May become - corrupted if overwriting continues after the red zone. - -Last alloc: -Last free: - Shows the address from which the object was allocated/freed last. - We note the pid, the time and the CPU that did so. This is usually - the most useful information to figure out where things went wrong. - Here get_modalias() did an kmalloc(8) instead of a kmalloc(9). + (Redzone information is only available if SLAB_RED_ZONE is set. + slub_debug sets that option) -Filler <address> : <bytes> +Padding <address> : <bytes> Unused data to fill up the space in order to get the next object properly aligned. In the debug case we make sure that there are - at least 4 bytes of filler. This allow for the detection of writes + at least 4 bytes of padding. This allows the detection of writes before the object. -Following the filler will be a stackdump. That stackdump describes the -location where the error was detected. The cause of the corruption is more -likely to be found by looking at the information about the last alloc / free. +3. A stackdump + +The stackdump describes the location where the error was detected. The cause +of the corruption is may be more likely found by looking at the function that +allocated or freed the object. + +4. Report on how the problem was dealt with in order to ensure the continued +operation of the system. + +These are messages in the system log beginning with + +FIX <slab cache affected>: <corrective action taken> + +In the above sample SLUB found that the Redzone of an active object has +been overwritten. Here a string of 8 characters was written into a slab that +has the length of 8 characters. However, a 8 character string needs a +terminating 0. That zero has overwritten the first byte of the Redzone field. +After reporting the details of the issue encountered the FIX SLUB message +tell us that SLUB has restored the Redzone to its proper value and then +system operations continue. + +Emergency operations: +--------------------- + +Minimal debugging (sanity checks alone) can be enabled by booting with + + slub_debug=F + +This will be generally be enough to enable the resiliency features of slub +which will keep the system running even if a bad kernel component will +keep corrupting objects. This may be important for production systems. +Performance will be impacted by the sanity checks and there will be a +continual stream of error messages to the syslog but no additional memory +will be used (unlike full debugging). + +No guarantees. The kernel component still needs to be fixed. Performance +may be optimized further by locating the slab that experiences corruption +and enabling debugging only for that cache + +I.e. + + slub_debug=F,dentry + +If the corruption occurs by writing after the end of the object then it +may be advisable to enable a Redzone to avoid corrupting the beginning +of other objects. + + slub_debug=FZ,dentry -Christoph Lameter, <clameter@sgi.com>, May 23, 2007 +Christoph Lameter, <clameter@sgi.com>, May 30, 2007 diff --git a/Documentation/zh_CN/HOWTO b/Documentation/zh_CN/HOWTO new file mode 100644 index 000000000000..48fc67bfbe3d --- /dev/null +++ b/Documentation/zh_CN/HOWTO @@ -0,0 +1,536 @@ +Chinese translated version of Documentation/HOWTO + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have problem +communicating in English you can also ask the Chinese maintainer for +help. Contact the Chinese maintainer, if this translation is outdated +or there is problem with translation. + +Maintainer: Greg Kroah-Hartman <greg@kroah.com> +Chinese maintainer: Li Yang <leoli@freescale.com> +--------------------------------------------------------------------- +Documentation/HOWTO çš„ä¸æ–‡ç¿»è¯‘ + +如果想评论或更新本文的内容，请直接è”ç³»åŽŸæ–‡æ¡£çš„ç»´æŠ¤è€…ã€‚å¦‚æžœä½ ä½¿ç”¨è‹±æ–‡ +交æµæœ‰å›°éš¾çš„è¯ï¼Œä¹Ÿå¯ä»¥å‘ä¸æ–‡ç‰ˆç»´æŠ¤è€…求助。如果本翻译更新ä¸åŠæ—¶æˆ–者翻 +译å˜åœ¨é—®é¢˜ï¼Œè¯·è”ç³»ä¸æ–‡ç‰ˆç»´æŠ¤è€…。 + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> +ä¸æ–‡ç‰ˆç»´æŠ¤è€…： æŽé˜³ Li Yang <leoli@freescale.com> +ä¸æ–‡ç‰ˆç¿»è¯‘者： æŽé˜³ Li Yang <leoli@freescale.com> +ä¸æ–‡ç‰ˆæ ¡è¯‘者： 钟宇 TripleX Chung <xxx.phy@gmail.com> + é™ˆç¦ Maggie Chen <chenqi@beyondsoft.com> + çŽ‹èª Wang Cong <xiyou.wangcong@gmail.com> + +以下为æ£æ–‡ +--------------------------------------------------------------------- + +如何å‚与Linuxå†…æ ¸å¼€å‘ +--------------------- + +这是一篇将如何å‚与Linuxå†…æ ¸å¼€å‘的相关问题一网打尽的终æžç§˜ç¬ˆã€‚å®ƒå°†æŒ‡å¯¼ä½ +æˆä¸ºä¸€åLinuxå†…æ ¸å¼€å‘者，并且å¦ä¼šå¦‚何åŒLinuxå†…æ ¸å¼€å‘社区åˆä½œã€‚它尽å¯èƒ½ä¸ +åŒ…æ‹¬ä»»ä½•å…³äºŽå†…æ ¸ç¼–ç¨‹çš„æŠ€æœ¯ç»†èŠ‚ï¼Œä½†ä¼šç»™ä½ æŒ‡å¼•ä¸€æ¡èŽ·å¾—这些知识的æ£ç¡®é€”径。 + +å¦‚æžœè¿™ç¯‡æ–‡ç« ä¸çš„任何内容ä¸å†é€‚用，请给文末列出的文件维护者å‘é€è¡¥ä¸ã€‚ + + +入门 +---- + +ä½ æƒ³äº†è§£å¦‚ä½•æˆä¸ºä¸€åLinuxå†…æ ¸å¼€å‘者？或者è€æ¿å©å’ä½ â€œç»™è¿™ä¸ªè®¾å¤‡å†™ä¸ªLinux +驱动程åºâ€ï¼Ÿè¿™ç¯‡æ–‡ç« çš„ç›®çš„å°±æ˜¯æ•™ä¼šä½ è¾¾æˆè¿™äº›ç›®æ ‡çš„全部诀çªï¼Œå®ƒå°†æè¿°ä½ éœ€ +è¦ç»è¿‡çš„æµç¨‹ä»¥åŠç»™å‡ºå¦‚何åŒå†…æ ¸ç¤¾åŒºåˆä½œçš„一些æç¤ºã€‚å®ƒè¿˜å°†è¯•å›¾è§£é‡Šå†…æ ¸ç¤¾åŒº +ä¸ºä½•è¿™æ ·è¿ä½œã€‚ + +Linuxå†…æ ¸å¤§éƒ¨åˆ†æ˜¯ç”±Cè¯è¨€å†™æˆçš„，一些体系结构相关的代ç 用到了汇编è¯è¨€ã€‚è¦ +å‚ä¸Žå†…æ ¸å¼€å‘ï¼Œä½ å¿…é¡»ç²¾é€šCè¯è¨€ã€‚除éžä½ 想为æŸä¸ªæž¶æž„å¼€å‘底层代ç ，å¦åˆ™ä½ 并 +ä¸éœ€è¦äº†è§£ï¼ˆä»»ä½•ä½“系结构的）汇编è¯è¨€ã€‚下é¢åˆ—举的书ç±è™½ç„¶ä¸èƒ½æ›¿ä»£æ‰Žå®žçš„C +è¯è¨€æ•™è‚²å’Œå¤šå¹´çš„å¼€å‘ç»éªŒï¼Œä½†å¦‚果需è¦çš„è¯ï¼Œåšä¸ºå‚考还是ä¸é”™çš„： + - "The C Programming Language" by Kernighan and Ritchie [Prentice Hall] + 《C程åºè®¾è®¡è¯è¨€ï¼ˆç¬¬2版·新版）》（å¾å®æ–‡ æŽå¿— 译）[机械工业出版社] + - "Practical C Programming" by Steve Oualline [O'Reilly] + 《实用Cè¯è¨€ç¼–程（第三版）》（éƒå¤§æµ· 译）[ä¸å›½ç”µåŠ›å‡ºç‰ˆç¤¾] + - "C: A Reference Manual" by Harbison and Steele [Prentice Hall] + 《Cè¯è¨€å‚考手册（原书第5版）》（邱仲潘 ç‰è¯‘）[机械工业出版社] + +Linuxå†…æ ¸ä½¿ç”¨GNU Cå’ŒGNU工具链开å‘。虽然它éµå¾ªISO C89æ ‡å‡†ï¼Œä½†ä¹Ÿç”¨åˆ°äº†ä¸€äº› +æ ‡å‡†ä¸æ²¡æœ‰å®šä¹‰çš„æ‰©å±•ã€‚å†…æ ¸æ˜¯è‡ªç»™è‡ªè¶³çš„C环境，ä¸ä¾èµ–äºŽæ ‡å‡†C库的支æŒï¼Œæ‰€ä»¥ +并ä¸æ”¯æŒCæ ‡å‡†ä¸çš„部分定义。比如long long类型的大数除法和浮点è¿ç®—å°±ä¸å…许 +ä½¿ç”¨ã€‚æœ‰æ—¶å€™ç¡®å®žå¾ˆéš¾å¼„æ¸…æ¥šå†…æ ¸å¯¹å·¥å…·é“¾çš„è¦æ±‚和它所使用的扩展，ä¸å¹¸çš„是目 +å‰è¿˜æ²¡æœ‰æ˜Žç¡®çš„å‚考资料å¯ä»¥è§£é‡Šå®ƒä»¬ã€‚请查阅gccä¿¡æ¯é¡µï¼ˆä½¿ç”¨â€œinfo gccâ€å‘½ä»¤ +显示）获得一些这方é¢ä¿¡æ¯ã€‚ + +请记ä½ä½ 是在å¦ä¹ 怎么和已ç»å˜åœ¨çš„å¼€å‘社区打交é“。它由一群形形色色的人组æˆï¼Œ +他们对代ç ã€é£Žæ ¼å’Œè¿‡ç¨‹æœ‰ç€å¾ˆé«˜çš„æ ‡å‡†ã€‚è¿™äº›æ ‡å‡†æ˜¯åœ¨é•¿æœŸå®žè·µä¸æ€»ç»“出æ¥çš„， +适应于地ç†ä¸Šåˆ†æ•£çš„大型开å‘团队。它们已ç»è¢«å¾ˆå¥½å¾—æ•´ç†æˆæ¡£ï¼Œå»ºè®®ä½ åœ¨å¼€å‘ +之å‰å°½å¯èƒ½å¤šçš„å¦ä¹ è¿™äº›æ ‡å‡†ï¼Œè€Œä¸è¦æœŸæœ›åˆ«äººæ¥é€‚åº”ä½ æˆ–è€…ä½ å…¬å¸çš„行为方å¼ã€‚ + + +法律问题 +-------- + +Linuxå†…æ ¸æºä»£ç 都是在GPL（通用公共许å¯è¯ï¼‰çš„ä¿æŠ¤ä¸‹å‘布的。è¦äº†è§£è¿™ç§è®¸å¯ +的细节请查看æºä»£ç 主目录下的COPYINGæ–‡ä»¶ã€‚å¦‚æžœä½ å¯¹å®ƒè¿˜æœ‰æ›´æ·±å…¥é—®é¢˜è¯·è”ç³» +律师，而ä¸è¦åœ¨Linuxå†…æ ¸é‚®ä»¶ç»„ä¸Šæé—®ã€‚å› ä¸ºé‚®ä»¶ç»„é‡Œçš„äººå¹¶ä¸æ˜¯å¾‹å¸ˆï¼Œä¸è¦æœŸ +望他们的è¯æœ‰æ³•å¾‹æ•ˆåŠ›ã€‚ + +对于GPL的常è§é—®é¢˜å’Œè§£ç”，请访问以下链接： + http://www.gnu.org/licenses/gpl-faq.html + + +文档 +---- + +Linuxå†…æ ¸ä»£ç ä¸åŒ…å«æœ‰å¤§é‡çš„文档。这些文档对于å¦ä¹ å¦‚ä½•ä¸Žå†…æ ¸ç¤¾åŒºäº’åŠ¨æœ‰ç€ +ä¸å¯ä¼°é‡çš„ä»·å€¼ã€‚å½“ä¸€ä¸ªæ–°çš„åŠŸèƒ½è¢«åŠ å…¥å†…æ ¸ï¼Œæœ€å¥½æŠŠè§£é‡Šå¦‚ä½•ä½¿ç”¨è¿™ä¸ªåŠŸèƒ½çš„æ–‡ +æ¡£ä¹Ÿæ”¾è¿›å†…æ ¸ã€‚å½“å†…æ ¸çš„æ”¹åŠ¨å¯¼è‡´é¢å‘用户空间的接å£å‘生å˜åŒ–时，最好将相关信 +æ¯æˆ–手册页(manpages)çš„è¡¥ä¸å‘到mtk-manpages@gmx.net，以å‘手册页(manpages) +的维护者解释这些å˜åŒ–。 + +ä»¥ä¸‹æ˜¯å†…æ ¸ä»£ç ä¸éœ€è¦é˜…读的文档： + README + 文件简è¦ä»‹ç»äº†Linuxå†…æ ¸çš„èƒŒæ™¯ï¼Œå¹¶ä¸”æ述了如何é…ç½®å’Œç¼–è¯‘å†…æ ¸ã€‚å†…æ ¸çš„ + 新用户应该从这里开始。 + + Documentation/Changes + 文件给出了用æ¥ç¼–è¯‘å’Œä½¿ç”¨å†…æ ¸æ‰€éœ€è¦çš„最å°è½¯ä»¶åŒ…列表。 + + Documentation/CodingStyle + æè¿°Linuxå†…æ ¸çš„ä»£ç é£Žæ ¼å’Œç†ç”±ã€‚所有新代ç 需è¦éµå®ˆè¿™ç¯‡æ–‡æ¡£ä¸å®šä¹‰çš„规 + 范。大多数维护者åªä¼šæŽ¥æ”¶ç¬¦åˆè§„定的补ä¸ï¼Œå¾ˆå¤šäººä¹Ÿåªä¼šå¸®å¿™æ£€æŸ¥ç¬¦åˆé£Žæ ¼ + 的代ç 。 + + Documentation/SubmittingPatches + Documentation/SubmittingDrivers + 这两份文档明确æ述如何创建和å‘é€è¡¥ä¸ï¼Œå…¶ä¸åŒ…括（但ä¸ä»…é™äºŽ)： + - 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pcmciaå¼€å‘æºç æ ‘, Dominik Brodowski <linux@dominikbrodowski.net> + git.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git + + - SCSIå¼€å‘æºç æ ‘, James Bottomley <James.Bottomley@SteelEye.com> + git.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git + + 使用quilt管ç†çš„è¡¥ä¸é›†ï¼š + - USB, PCI, 驱动程åºæ ¸å¿ƒå’ŒI2C, Greg Kroah-Hartman <gregkh@suse.de> + kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ + - x86-64, 部分i386, Andi Kleen <ak@suse.de> + ftp.firstfloor.org:/pub/ak/x86_64/quilt/ + + å…¶ä»–å†…æ ¸æºç æ ‘å¯ä»¥åœ¨http://git.kernel.org的列表ä¸å’ŒMAINTAINERS文件里 + 找到。 + +报告bug +------- + +bugzilla.kernel.org是Linuxå†…æ ¸å¼€å‘者们用æ¥è·Ÿè¸ªå†…æ ¸Bug的网站。我们鼓励用 +户在这个工具ä¸æŠ¥å‘Šæ‰¾åˆ°çš„所有bugã€‚å¦‚ä½•ä½¿ç”¨å†…æ ¸bugzilla的细节请访问： + http://test.kernel.org/bugzilla/faq.html + +å†…æ ¸æºç 主目录ä¸çš„REPORTING-BUGS文件里有一个很好的模æ¿ã€‚它指导用户如何报 +å‘Šå¯èƒ½çš„å†…æ ¸bug以åŠéœ€è¦æ供哪些信æ¯æ¥å¸®åŠ©å†…æ ¸å¼€å‘è€…ä»¬æ‰¾åˆ°é—®é¢˜çš„æ ¹æºã€‚ + + +利用bug报告 +----------- + +ç»ƒä¹ å†…æ ¸å¼€å‘技能的最好办法就是修改其他人报告的bugã€‚ä½ ä¸å…‰å¯ä»¥å¸®åŠ©å†…æ ¸å˜ +å¾—æ›´åŠ ç¨³å®šï¼Œè¿˜å¯ä»¥å¦ä¼šå¦‚何解决实际问题从而æé«˜è‡ªå·±çš„æŠ€èƒ½ï¼Œå¹¶ä¸”è®©å…¶ä»–å¼€å‘ +者感å—åˆ°ä½ çš„å˜åœ¨ã€‚修改bug是赢得其他开å‘è€…èµžèª‰çš„æœ€å¥½åŠžæ³•ï¼Œå› ä¸ºå¹¶ä¸æ˜¯å¾ˆå¤š +人都喜欢浪费时间去修改别人报告的bug。 + +è¦å°è¯•ä¿®æ”¹å·²çŸ¥çš„bug，请访问http://bugzilla.kernel.org网å€ã€‚å¦‚æžœä½ æƒ³èŽ·å¾— +最新bug的通知，å¯ä»¥è®¢é˜…bugme-new邮件列表（åªæœ‰æ–°çš„bug报告会被寄到这里） +或者订阅bugme-janitor邮件列表（所有bugzillaçš„å˜åŠ¨éƒ½ä¼šè¢«å¯„到这里）。 + + http://lists.osdl.org/mailman/listinfo/bugme-new + http://lists.osdl.org/mailman/listinfo/bugme-janitors + + +邮件列表 +-------- + +æ£å¦‚上é¢çš„文档所æè¿°ï¼Œå¤§å¤šæ•°çš„éª¨å¹²å†…æ ¸å¼€å‘è€…éƒ½åŠ å…¥äº†Linux Kernel邮件列 +表。如何订阅和退订列表的细节å¯ä»¥åœ¨è¿™é‡Œæ‰¾åˆ°ï¼š + http://vger.kernel.org/vger-lists.html#linux-kernel +网上很多地方都有这个邮件列表的å˜æ¡£(archive)。å¯ä»¥ä½¿ç”¨æœç´¢å¼•æ“Žæ¥æ‰¾åˆ°è¿™äº› +å˜æ¡£ã€‚比如： + http://dir.gmane.org/gmane.linux.kernel +在å‘信之å‰ï¼Œæˆ‘ä»¬å¼ºçƒˆå»ºè®®ä½ å…ˆåœ¨å˜æ¡£ä¸æœç´¢ä½ 想è¦è®¨è®ºçš„问题。很多已ç»è¢«è¯¦ç»† +讨论过的问题åªåœ¨é‚®ä»¶åˆ—表的å˜æ¡£ä¸å¯ä»¥æ‰¾åˆ°ã€‚ + +å¤§å¤šæ•°å†…æ ¸å系统也有自己独立的邮件列表æ¥åè°ƒå„自的开å‘工作。从 +MAINTAINERS文件ä¸å¯ä»¥æ‰¾åˆ°ä¸åŒè¯é¢˜å¯¹åº”的邮件列表。 + +很多邮件列表架设在kernel.orgæœåŠ¡å™¨ä¸Šã€‚这些列表的信æ¯å¯ä»¥åœ¨è¿™é‡Œæ‰¾åˆ°ï¼š + http://vger.kernel.org/vger-lists.html + +在使用这些邮件列表时，请记ä½ä¿æŒè‰¯å¥½çš„è¡Œä¸ºä¹ æƒ¯ã€‚ä¸‹é¢çš„链接æ供了与这些列 +表（或任何其它邮件列表）交æµçš„一些简å•è§„则，虽然内容有点滥竽充数。 + http://www.albion.com/netiquette/ + +当有很多人回å¤ä½ 的邮件时，邮件的抄é€åˆ—表会å˜å¾—很长。请ä¸è¦å°†ä»»ä½•äººä»ŽæŠ„é€ +列表ä¸åˆ 除，除éžä½ 有足够的ç†ç”±è¿™ä¹ˆåšã€‚也ä¸è¦åªå›žå¤åˆ°é‚®ä»¶åˆ—è¡¨ã€‚è¯·ä¹ æƒ¯äºŽåŒ +一å°é‚®ä»¶æŽ¥æ”¶ä¸¤æ¬¡ï¼ˆä¸€å°æ¥è‡ªå‘é€è€…一å°æ¥è‡ªé‚®ä»¶åˆ—表），而ä¸è¦è¯•å›¾é€šè¿‡æ·»åŠ 一 +些奇特的邮件头æ¥è§£å†³è¿™ä¸ªé—®é¢˜ï¼Œäººä»¬ä¸ä¼šå–œæ¬¢çš„。 + +è®°ä½ä¿ç•™ä½ 所回å¤å†…容的上下文和æºå¤´ã€‚åœ¨ä½ å›žå¤é‚®ä»¶çš„顶部ä¿ç•™â€œæŸæŸæŸè¯´åˆ°â€¦â€¦â€ +è¿™å‡ è¡Œã€‚å°†ä½ çš„è¯„è®ºåŠ åœ¨è¢«å¼•ç”¨çš„æ®µè½ä¹‹é—´è€Œä¸è¦æ”¾åœ¨é‚®ä»¶çš„顶部。 + +å¦‚æžœä½ åœ¨é‚®ä»¶ä¸é™„带补ä¸ï¼Œè¯·ç¡®è®¤å®ƒä»¬æ˜¯å¯ä»¥ç›´æŽ¥é˜…读的纯文本（如 +Documentation/SubmittingPatches文档ä¸æ‰€è¿°ï¼‰ã€‚å†…æ ¸å¼€å‘者们ä¸å¸Œæœ›é‡åˆ°é™„件 +或者被压缩了的补ä¸ã€‚åªæœ‰è¿™æ ·æ‰èƒ½ä¿è¯ä»–们å¯ä»¥ç›´æŽ¥è¯„è®ºä½ çš„æ¯è¡Œä»£ç ã€‚è¯·ç¡®ä¿ +ä½ ä½¿ç”¨çš„é‚®ä»¶å‘é€ç¨‹åºä¸ä¼šä¿®æ”¹ç©ºæ ¼å’Œåˆ¶è¡¨ç¬¦ã€‚一个防范性的测试方法是先将邮件 +å‘é€ç»™è‡ªå·±ï¼Œç„¶åŽè‡ªå·±å°è¯•æ˜¯å¦å¯ä»¥é¡ºåˆ©åœ°æ‰“上收到的补ä¸ã€‚如果测试ä¸æˆåŠŸï¼Œè¯· +调整或者更æ¢ä½ 的邮件å‘é€ç¨‹åºç›´åˆ°å®ƒæ£ç¡®å·¥ä½œä¸ºæ¢ã€‚ + +总而言之，请尊é‡å…¶ä»–的邮件列表订阅者。 + + +åŒå†…æ ¸ç¤¾åŒºåˆä½œ +---------------- + +å†…æ ¸ç¤¾åŒºçš„ç›®æ ‡å°±æ˜¯æä¾›å°½å–„å°½ç¾Žçš„å†…æ ¸ã€‚æ‰€ä»¥å½“ä½ æ交补ä¸æœŸæœ›è¢«æŽ¥å—è¿›å†…æ ¸çš„ +时候，它的技术价值以åŠå…¶ä»–æ–¹é¢éƒ½å°†è¢«è¯„å®¡ã€‚é‚£ä¹ˆä½ å¯èƒ½ä¼šå¾—到什么呢？ + - 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为什么需è¦è¿™ä¸ªä¿®æ”¹ + - è¡¥ä¸çš„总体设计 + - 实现细节 + - 测试结果 + +想了解它具体应该看起æ¥åƒä»€ä¹ˆï¼Œè¯·æŸ¥é˜…以下文档ä¸çš„“ChangeLogâ€ç« 节： + “The Perfect Patch†+ http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt + + +这些事情有时候åšèµ·æ¥å¾ˆéš¾ã€‚è¦åœ¨ä»»ä½•æ–¹é¢éƒ½åšåˆ°å®Œç¾Žå¯èƒ½éœ€è¦å¥½å‡ 年时间。这是 +一个æŒç»æ高的过程，它需è¦å¤§é‡çš„è€å¿ƒå’Œå†³å¿ƒã€‚åªè¦ä¸æ”¾å¼ƒï¼Œä½ 一定å¯ä»¥åšåˆ°ã€‚ +很多人已ç»åšåˆ°äº†ï¼Œè€Œä»–们都曾ç»å’ŒçŽ°åœ¨çš„ä½ ç«™åœ¨åŒæ ·çš„起点上。 + + +--------------- +æ„Ÿè°¢Paolo Ciarrocchiå…许“开å‘æµç¨‹â€éƒ¨åˆ†åŸºäºŽä»–æ‰€å†™çš„æ–‡ç« +(http://linux.tar.bz/articles/2.6-development_process)，感谢Randy +Dunlapå’ŒGerrit Huizenga完善了应该说和ä¸è¯¥è¯´çš„列表。感谢Pat Mochel, Hanna +Linder, Randy Dunlap, Kay Sievers, Vojtech Pavlik, Jan Kara, Josh Boyer, +Kees Cook, Andrew Morton, Andi Kleen, Vadim Lobanov, Jesper Juhl, Adrian +Bunk, Keri Harris, Frans Pop, David A. Wheeler, Junio Hamano, Michael +Kerriskå’ŒAlex Shepard的评审ã€å»ºè®®å’Œè´¡çŒ®ã€‚没有他们的帮助，这篇文档是ä¸å¯ +能完æˆçš„。 + + + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> diff --git a/Documentation/zh_CN/stable_api_nonsense.txt b/Documentation/zh_CN/stable_api_nonsense.txt new file mode 100644 index 000000000000..c26a27d1ee7d --- /dev/null +++ b/Documentation/zh_CN/stable_api_nonsense.txt @@ -0,0 +1,157 @@ +Chinese translated version of Documentation/stable_api_nonsense.txt + +If you have any comment or update to the content, please contact the +original document maintainer directly. However, if you have problem +communicating in English you can also ask the Chinese maintainer for help. +Contact the Chinese maintainer, if this translation is outdated or there +is problem with translation. + +Maintainer: Greg Kroah-Hartman <greg@kroah.com> +Chinese maintainer: TripleX Chung <zhongyu@18mail.cn> +--------------------------------------------------------------------- +Documentation/stable_api_nonsense.txt çš„ä¸æ–‡ç¿»è¯‘ + +如果想评论或更新本文的内容，请直接è”ç³»åŽŸæ–‡æ¡£çš„ç»´æŠ¤è€…ã€‚å¦‚æžœä½ ä½¿ç”¨è‹±æ–‡ +交æµæœ‰å›°éš¾çš„è¯ï¼Œä¹Ÿå¯ä»¥å‘ä¸æ–‡ç‰ˆç»´æŠ¤è€…求助。如果本翻译更新ä¸åŠæ—¶æˆ–者翻 +译å˜åœ¨é—®é¢˜ï¼Œè¯·è”ç³»ä¸æ–‡ç‰ˆç»´æŠ¤è€…。 + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> +ä¸æ–‡ç‰ˆç»´æŠ¤è€…： 钟宇 TripleX Chung <zhongyu@18mail.cn> +ä¸æ–‡ç‰ˆç¿»è¯‘者： 钟宇 TripleX Chung <zhongyu@18mail.cn> +ä¸æ–‡ç‰ˆæ ¡è¯‘者： æŽé˜³ Li Yang <leoli@freescale.com> +以下为æ£æ–‡ +--------------------------------------------------------------------- + +写作本文档的目的，是为了解释为什么Linuxæ—¢æ²¡æœ‰äºŒè¿›åˆ¶å†…æ ¸æŽ¥å£ï¼Œä¹Ÿæ²¡æœ‰ç¨³å®š +çš„å†…æ ¸æŽ¥å£ã€‚è¿™é‡Œæ‰€è¯´çš„å†…æ ¸æŽ¥å£ï¼Œæ˜¯æŒ‡å†…æ ¸é‡Œçš„æŽ¥å£ï¼Œè€Œä¸æ˜¯å†…æ ¸å’Œç”¨æˆ·ç©ºé—´ +的接å£ã€‚å†…æ ¸åˆ°ç”¨æˆ·ç©ºé—´çš„æŽ¥å£ï¼Œæ˜¯æ供给应用程åºä½¿ç”¨çš„系统调用，系统调用 +在历å²ä¸Šå‡ 乎没有过å˜åŒ–，将æ¥ä¹Ÿä¸ä¼šæœ‰å˜åŒ–。我有一些è€åº”用程åºæ˜¯åœ¨0.9版本 +æˆ–è€…æ›´æ—©ç‰ˆæœ¬çš„å†…æ ¸ä¸Šç¼–è¯‘çš„ï¼Œåœ¨ä½¿ç”¨2.6ç‰ˆæœ¬å†…æ ¸çš„Linuxå‘布上ä¾ç„¶ç”¨å¾—很好 +。用户和应用程åºä½œè€…å¯ä»¥å°†è¿™ä¸ªæŽ¥å£çœ‹æˆæ˜¯ç¨³å®šçš„。 + + +æ‰§è¡Œçº²è¦ +-------- + +ä½ ä¹Ÿè®¸ä»¥ä¸ºè‡ªå·±æƒ³è¦ç¨³å®šçš„å†…æ ¸æŽ¥å£ï¼Œä½†æ˜¯ä½ ä¸æ¸…æ¥šä½ è¦çš„实际上ä¸æ˜¯å®ƒã€‚ä½ éœ€ +è¦çš„其实是稳定的驱动程åºï¼Œè€Œä½ åªæœ‰å°†é©±åŠ¨ç¨‹åºæ”¾åˆ°å…¬ç‰ˆå†…æ ¸çš„æºä»£ç æ ‘é‡Œï¼Œ +æ‰æœ‰å¯èƒ½è¾¾åˆ°è¿™ä¸ªç›®çš„ã€‚è€Œä¸”è¿™æ ·åšè¿˜æœ‰å¾ˆå¤šå…¶å®ƒå¥½å¤„，æ£æ˜¯å› 为这些好处使得 +Linux能æˆä¸ºå¼ºå£®ï¼Œç¨³å®šï¼Œæˆç†Ÿçš„æ“ä½œç³»ç»Ÿï¼Œè¿™ä¹Ÿæ˜¯ä½ æœ€å¼€å§‹é€‰æ‹©Linuxçš„åŽŸå› ã€‚ + + +入门 +----- + +åªæœ‰é‚£äº›å†™é©±åŠ¨ç¨‹åºçš„“怪人â€æ‰ä¼šæ‹…å¿ƒå†…æ ¸æŽ¥å£çš„改å˜ï¼Œå¯¹å¹¿å¤§ç”¨æˆ·æ¥è¯´ï¼Œæ—¢ +看ä¸åˆ°å†…æ ¸æŽ¥å£ï¼Œä¹Ÿä¸éœ€è¦åŽ»å…³å¿ƒå®ƒã€‚ + +首先，我ä¸æ‰“算讨论关于任何éžGPL许å¯çš„å†…æ ¸é©±åŠ¨çš„æ³•å¾‹é—®é¢˜ï¼Œè¿™äº›éžGPLè®¸å¯ +的驱动程åºåŒ…括ä¸å…¬å¼€æºä»£ç ，éšè—æºä»£ç ，二进制或者是用æºä»£ç 包装，或者 +是其它任何形å¼çš„ä¸èƒ½ä»¥GPL许å¯å…¬å¼€æºä»£ç 的驱动程åºã€‚如果有法律问题，请咨 +询律师，我åªæ˜¯ä¸€ä¸ªç¨‹åºå‘˜ï¼Œæ‰€ä»¥æˆ‘åªæ‰“算探讨技术问题（ä¸æ˜¯å°çœ‹æ³•å¾‹é—®é¢˜ï¼Œ +法律问题很实际，并且需è¦ä¸€ç›´å…³æ³¨ï¼‰ã€‚ + +既然åªè°ˆæŠ€æœ¯é—®é¢˜ï¼Œæˆ‘们就有了下é¢ä¸¤ä¸ªä¸»é¢˜ï¼šäºŒè¿›åˆ¶å†…æ ¸æŽ¥å£å’Œç¨³å®šçš„å†…æ ¸æº +代ç 接å£ã€‚这两个问题是互相关è”的，让我们先解决掉二进制接å£çš„问题。 + + +äºŒè¿›åˆ¶å†…æ ¸æŽ¥å£ +-------------- +å‡å¦‚æˆ‘ä»¬æœ‰ä¸€ä¸ªç¨³å®šçš„å†…æ ¸æºä»£ç 接å£ï¼Œé‚£ä¹ˆè‡ªç„¶è€Œç„¶çš„，我们就拥有了稳定的 +二进制接å£ï¼Œæ˜¯è¿™æ ·çš„å—？错。让我们看看关于Linuxå†…æ ¸çš„å‡ ç‚¹äº‹å®žï¼š + - 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把数æ®æµä»ŽåŒæ¥æ¨¡å¼æ”¹æˆéžåŒæ¥æ¨¡å¼ï¼Œè¿™ä¸ªæ”¹åŠ¨å‡å°‘了一些驱动程åºçš„ +å¤æ‚度，æ高了所有USB驱动程åºçš„åžåçŽ‡ï¼Œè¿™æ ·å‡ ä¹Žæ‰€æœ‰çš„USB设备都能以最大 +速率工作了。 + - 修改了USBæ ¸å¿ƒä»£ç ä¸ä¸ºUSB驱动分é…æ•°æ®åŒ…内å˜çš„æ–¹å¼ï¼Œæ‰€æœ‰çš„驱动都 +需è¦æ供更多的å‚æ•°ç»™USBæ ¸å¿ƒï¼Œä»¥ä¿®æ£äº†å¾ˆå¤šå·²ç»è¢«è®°å½•åœ¨æ¡ˆçš„æ»é”。 + +这和一些å°é—æºä»£ç çš„æ“作系统形æˆé²œæ˜Žçš„对比，在那些æ“作系统上，ä¸å¾—ä¸é¢ +外的维护旧的USB接å£ã€‚这导致了一个å¯èƒ½æ€§ï¼Œæ–°çš„å¼€å‘者ä¾ç„¶ä¼šä¸å°å¿ƒä½¿ç”¨æ—§çš„ +接å£ï¼Œä»¥ä¸æ°å½“çš„æ–¹å¼ç¼–写代ç ，进而影å“到æ“作系统的稳定性。 + 在上é¢çš„例åä¸ï¼Œæ‰€æœ‰çš„å¼€å‘者都åŒæ„这些é‡è¦çš„æ”¹åŠ¨ï¼Œåœ¨è¿™æ ·çš„æƒ…å†µä¸‹ä¿®æ”¹ä»£ +价很低。如果Linuxä¿æŒä¸€ä¸ªç¨³å®šçš„å†…æ ¸æºä»£ç 接å£ï¼Œé‚£ä¹ˆå°±å¾—åˆ›å»ºä¸€ä¸ªæ–°çš„æŽ¥å£ +；旧的，有问题的接å£å¿…须一直维护，给Linux USBå¼€å‘者带æ¥é¢å¤–的工作。既然 +所有的Linux USB驱动的作者都是利用自己的时间工作，那么è¦æ±‚他们去åšæ¯«æ— æ„ +义的å…è´¹é¢å¤–工作，是ä¸å¯èƒ½çš„。 + 安全问题对Linuxæ¥è¯´å分é‡è¦ã€‚一个安全问题被å‘现，就会在çŸæ—¶é—´å†…得到修 +æ£ã€‚在很多情况下，这将导致Linuxå†…æ ¸ä¸çš„一些接å£è¢«é‡å†™ï¼Œä»¥ä»Žæ ¹æœ¬ä¸Šé¿å…安 +全问题。一旦接å£è¢«é‡å†™ï¼Œæ‰€æœ‰ä½¿ç”¨è¿™äº›æŽ¥å£çš„驱动程åºï¼Œå¿…é¡»åŒæ—¶å¾—到修æ£ï¼Œ +以确定安全问题已ç»å¾—到修å¤å¹¶ä¸”ä¸å¯èƒ½åœ¨æœªæ¥è¿˜æœ‰åŒæ ·çš„å®‰å…¨é—®é¢˜ã€‚å¦‚æžœå†…æ ¸ +内部接å£ä¸å…许改å˜ï¼Œé‚£ä¹ˆå°±ä¸å¯èƒ½ä¿®å¤è¿™æ ·çš„安全问题，也ä¸å¯èƒ½ç¡®è®¤è¿™æ ·çš„ +安全问题以åŽä¸ä¼šå‘生。 +å¼€å‘者一直在清ç†å†…æ ¸æŽ¥å£ã€‚如果一个接å£æ²¡æœ‰äººåœ¨ä½¿ç”¨äº†ï¼Œå®ƒå°±ä¼šè¢«åˆ 除。这 +æ ·å¯ä»¥ç¡®ä¿å†…æ ¸å°½å¯èƒ½çš„å°ï¼Œè€Œä¸”所有潜在的接å£éƒ½ä¼šå¾—到尽å¯èƒ½å®Œæ•´çš„测试 +（没有人使用的接å£æ˜¯ä¸å¯èƒ½å¾—到良好的测试的）。 + + +è¦åšä»€ä¹ˆ +------- + +å¦‚æžœä½ å†™äº†ä¸€ä¸ªLinuxå†…æ ¸é©±åŠ¨ï¼Œä½†æ˜¯å®ƒè¿˜ä¸åœ¨Linuxæºä»£ç æ ‘é‡Œï¼Œä½œä¸ºä¸€ä¸ªå¼€å‘ +è€…ï¼Œä½ åº”è¯¥æ€Žä¹ˆåšï¼Ÿä¸ºæ¯ä¸ªå‘布的æ¯ä¸ªç‰ˆæœ¬æ供一个二进制驱动，那简直是一个 +噩梦，è¦è·Ÿä¸Šæ°¸è¿œå¤„于å˜åŒ–之ä¸çš„å†…æ ¸æŽ¥å£ï¼Œä¹Ÿæ˜¯ä¸€ä»¶è¾›è‹¦æ´»ã€‚ +很简å•ï¼Œè®©ä½ çš„é©±åŠ¨è¿›å…¥å†…æ ¸æºä»£ç æ ‘ï¼ˆè¦è®°å¾—我们在谈论的是以GPL许å¯å‘è¡Œ +çš„é©±åŠ¨ï¼Œå¦‚æžœä½ çš„ä»£ç ä¸ç¬¦åˆGPL，那么ç¥ä½ 好è¿ï¼Œä½ åªèƒ½è‡ªå·±è§£å†³è¿™ä¸ªé—®é¢˜äº†ï¼Œ +ä½ è¿™ä¸ªå¸è¡€é¬¼<把Andrewå’ŒLinus对å¸è¡€é¬¼çš„定义链接到这里>ï¼‰ã€‚å½“ä½ çš„ä»£ç åŠ å…¥ +å…¬ç‰ˆå†…æ ¸æºä»£ç æ ‘ä¹‹åŽï¼Œå¦‚æžœä¸€ä¸ªå†…æ ¸æŽ¥å£æ”¹å˜ï¼Œä½ 的驱动会直接被修改接å£çš„ +那个人修改。ä¿è¯ä½ 的驱动永远都å¯ä»¥ç¼–è¯‘é€šè¿‡ï¼Œå¹¶ä¸”ä¸€ç›´å·¥ä½œï¼Œä½ å‡ ä¹Žä¸éœ€è¦ +åšä»€ä¹ˆäº‹æƒ…。 + +æŠŠé©±åŠ¨æ”¾åˆ°å†…æ ¸æºä»£ç æ ‘é‡Œä¼šæœ‰å¾ˆå¤šçš„å¥½å¤„ï¼š + - 驱动的质é‡ä¼šæå‡ï¼Œè€Œç»´æŠ¤æˆæœ¬ï¼ˆå¯¹åŽŸå§‹ä½œè€…æ¥è¯´ï¼‰ä¼šä¸‹é™ã€‚ + - å…¶ä»–äººä¼šç»™é©±åŠ¨æ·»åŠ æ–°ç‰¹æ€§ã€‚ + - 其他人会找到驱动ä¸çš„bug并修å¤ã€‚ + - 其他人会在驱动ä¸æ‰¾åˆ°æ€§èƒ½ä¼˜åŒ–的机会。 + - 当外部的接å£çš„改å˜éœ€è¦ä¿®æ”¹é©±åŠ¨ç¨‹åºçš„æ—¶å€™ï¼Œå…¶ä»–äººä¼šä¿®æ”¹é©±åŠ¨ç¨‹åº +。 + - ä¸éœ€è¦è”系任何å‘行商，这个驱动会自动的éšç€æ‰€æœ‰çš„Linuxå‘å¸ƒä¸€èµ·å‘ +布。 + +和别的æ“作系统相比，Linux为更多ä¸åŒçš„设备æ供现æˆçš„é©±åŠ¨ï¼Œè€Œä¸”èƒ½åœ¨æ›´å¤šä¸ +åŒä½“系结构的处ç†å™¨ä¸Šæ”¯æŒè¿™äº›è®¾å¤‡ã€‚这个ç»è¿‡è€ƒéªŒçš„å¼€å‘模å¼ï¼Œå¿…然是错ä¸äº† +çš„ :) + +------------- +æ„Ÿè°¢ Randy Dunlap, Andrew Morton, David Brownell, Hanna Linder, +Robert Love, and Nishanth Aravamudan 对于本文档早期版本的评审和建议。 + +英文版维护者： Greg Kroah-Hartman <greg@kroah.com> diff --git a/MAINTAINERS b/MAINTAINERS index 5abec1435ad8..0c83823f14c3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -732,6 +732,13 @@ L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only) W: http://blackfin.uclinux.org S: Supported +BLACKFIN EMAC DRIVER +P: Bryan Wu +M: bryan.wu@analog.com +L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only) +W: http://blackfin.uclinux.org +S: Supported + BLACKFIN RTC DRIVER P: Mike Frysinger M: michael.frysinger@analog.com @@ -913,6 +920,12 @@ M: mchan@broadcom.com L: netdev@vger.kernel.org S: Supported +BSG (block layer generic sg v4 driver) +P: FUJITA Tomonori +M: fujita.tomonori@lab.ntt.co.jp +L: linux-scsi@vger.kernel.org +S: Supported + BTTV VIDEO4LINUX DRIVER P: Mauro Carvalho Chehab M: mchehab@infradead.org @@ -1339,21 +1352,60 @@ S: Supported EDAC-CORE P: Doug Thompson -M: norsk5@xmission.com +M: dougthompson@xmission.com L: bluesmoke-devel@lists.sourceforge.net W: bluesmoke.sourceforge.net S: Supported EDAC-E752X P: Mark Gross +P: Doug Thompson M: mark.gross@intel.com +M: dougthompson@xmission.com L: bluesmoke-devel@lists.sourceforge.net W: bluesmoke.sourceforge.net S: Maintained EDAC-E7XXX P: Doug Thompson -M: norsk5@xmission.com +M: dougthompson@xmission.com +L: bluesmoke-devel@lists.sourceforge.net +W: bluesmoke.sourceforge.net +S: Maintained + +EDAC-I82443BXGX +P: Tim Small +M: tim@buttersideup.com +L: bluesmoke-devel@lists.sourceforge.net +W: bluesmoke.sourceforge.net +S: Maintained + +EDAC-I3000 +P: Jason Uhlenkott +M: juhlenko@akamai.com +L: bluesmoke-devel@lists.sourceforge.net +W: bluesmoke.sourceforge.net +S: Maintained + +EDAC-I5000 +P: Doug Thompson +M: dougthompson@xmission.com +L: bluesmoke-devel@lists.sourceforge.net +W: bluesmoke.sourceforge.net +S: Maintained + +EDAC-I82975X +P: Ranganathan Desikan +P: Arvind R. +M: rdesikan@jetzbroadband.com +M: arvind@acarlab.com +L: bluesmoke-devel@lists.sourceforge.net +W: bluesmoke.sourceforge.net +S: Maintained + +EDAC-PASEMI +P: Egor Martovetsky +M: egor@pasemi.com L: bluesmoke-devel@lists.sourceforge.net W: bluesmoke.sourceforge.net S: Maintained @@ -1734,6 +1786,7 @@ S: Maintained i386 SETUP CODE / CPU ERRATA WORKAROUNDS P: H. Peter Anvin M: hpa@zytor.com +T: git.kernel.org:/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup.git S: Maintained IA64 (Itanium) PLATFORM @@ -2387,7 +2440,7 @@ P: Artem Bityutskiy M: dedekind@infradead.org W: http://www.linux-mtd.infradead.org/ L: linux-mtd@lists.infradead.org -T: git git://git.infradead.org/ubi-2.6.git +T: git git://git.infradead.org/~dedekind/ubi-2.6.git S: Maintained MICROTEK X6 SCANNER @@ -2843,8 +2896,8 @@ L: linux-kernel@vger.kernel.org S: Maintained POSIX CLOCKS and TIMERS -P: George Anzinger -M: george@mvista.com +P: Thomas Gleixner +M: tglx@linutronix.de L: linux-kernel@vger.kernel.org S: Supported @@ -3275,9 +3328,19 @@ M: neilb@suse.de L: linux-raid@vger.kernel.org S: Supported -SOFTWARE SUSPEND: +HIBERNATION (aka Software Suspend, aka swsusp): P: Pavel Machek M: pavel@suse.cz +P: Rafael J. Wysocki +M: rjw@sisk.pl +L: linux-pm@lists.linux-foundation.org +S: Supported + +SUSPEND TO RAM: +P: Pavel Machek +M: pavel@suse.cz +P: Rafael J. Wysocki +M: rjw@sisk.pl L: linux-pm@lists.linux-foundation.org S: Maintained @@ -4104,6 +4167,11 @@ W: http://www.polyware.nl/~middelin/En/hobbies.html W: http://www.polyware.nl/~middelin/hobbies.html S: Maintained +ZS DECSTATION Z85C30 SERIAL DRIVER +P: Maciej W. Rozycki +M: macro@linux-mips.org +S: Maintained + THE REST P: Linus Torvalds S: Buried alive in reporters diff --git a/Makefile b/Makefile index ddbfcac299c1..eccb03b88b8d 100644 --- a/Makefile +++ b/Makefile @@ -514,6 +514,12 @@ CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) # disable pointer signed / unsigned warnings in gcc 4.0 CFLAGS += $(call cc-option,-Wno-pointer-sign,) +# Use --build-id when available. +LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ + $(call ld-option, -Wl$(comma)--build-id,)) +LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) +LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) + # Default kernel image to build when no specific target is given. # KBUILD_IMAGE may be overruled on the command line or # set in the environment diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c index bd03dc94c72b..026ba9af6d6a 100644 --- a/arch/alpha/kernel/module.c +++ b/arch/alpha/kernel/module.c @@ -119,8 +119,7 @@ module_frob_arch_sections(Elf64_Ehdr *hdr, Elf64_Shdr *sechdrs, } nsyms = symtab->sh_size / sizeof(Elf64_Sym); - chains = kmalloc(nsyms * sizeof(struct got_entry), GFP_KERNEL); - memset(chains, 0, nsyms * sizeof(struct got_entry)); + chains = kcalloc(nsyms, sizeof(struct got_entry), GFP_KERNEL); got->sh_size = 0; got->sh_addralign = 8; diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c index 0cd060598f9a..83a781842266 100644 --- a/arch/alpha/kernel/ptrace.c +++ b/arch/alpha/kernel/ptrace.c @@ -315,9 +315,7 @@ do_sys_ptrace(long request, long pid, long addr, long data, /* When I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - tmp = data; - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 1); - ret = (copied == sizeof(tmp)) ? 0 : -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the specified register */ diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 80cfb758ee2b..b28731437c31 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -65,7 +65,7 @@ enum ipi_message_type { }; /* Set to a secondary's cpuid when it comes online. */ -static int smp_secondary_alive __initdata = 0; +static int smp_secondary_alive __devinitdata = 0; /* Which cpus ids came online. */ cpumask_t cpu_online_map; @@ -173,7 +173,7 @@ smp_callin(void) } /* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */ -static int __init +static int __devinit wait_for_txrdy (unsigned long cpumask) { unsigned long timeout; @@ -358,7 +358,7 @@ secondary_cpu_start(int cpuid, struct task_struct *idle) /* * Bring one cpu online. */ -static int __init +static int __devinit smp_boot_one_cpu(int cpuid) { struct task_struct *idle; diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index d6e665d567bd..ec0f05e0d8ff 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -184,6 +184,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) #endif printk("%s(%d): %s %ld\n", current->comm, current->pid, str, err); dik_show_regs(regs, r9_15); + add_taint(TAINT_DIE); dik_show_trace((unsigned long *)(regs+1)); dik_show_code((unsigned int *)regs->pc); diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S index 449e76f118d3..fe13daa5cb2c 100644 --- a/arch/alpha/kernel/vmlinux.lds.S +++ b/arch/alpha/kernel/vmlinux.lds.S @@ -3,7 +3,7 @@ OUTPUT_FORMAT("elf64-alpha") OUTPUT_ARCH(alpha) ENTRY(__start) -PHDRS { kernel PT_LOAD ; } +PHDRS { kernel PT_LOAD; note PT_NOTE; } jiffies = jiffies_64; SECTIONS { @@ -28,6 +28,9 @@ SECTIONS __ex_table : { *(__ex_table) } __stop___ex_table = .; + NOTES :kernel :note + .dummy : { *(.dummy) } :kernel + RODATA /* Will be freed after init */ @@ -69,10 +72,7 @@ SECTIONS . = ALIGN(8); SECURITY_INIT - . = ALIGN(8192); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(8192) . = ALIGN(2*8192); __init_end = .; diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c index ab3761c437a8..8698e0746f9f 100644 --- a/arch/alpha/lib/checksum.c +++ b/arch/alpha/lib/checksum.c @@ -69,6 +69,7 @@ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, result = (result & 0xffffffff) + (result >> 32); return (__force __wsum)result; } +EXPORT_SYMBOL(csum_tcpudp_nofold); /* * Do a 64-bit checksum on an arbitrary memory area.. diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c index f5862792a167..a0e18da594d9 100644 --- a/arch/alpha/mm/fault.c +++ b/arch/alpha/mm/fault.c @@ -148,21 +148,17 @@ do_page_fault(unsigned long address, unsigned long mmcsr, the fault. */ fault = handle_mm_fault(mm, vma, address, cause > 0); up_read(&mm->mmap_sem); - - switch (fault) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; return; /* Something tried to access memory that isn't in our memory map. diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 6f2f46c2e406..78c9f1a3d41f 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -657,7 +657,6 @@ static int ptrace_setcrunchregs(struct task_struct *tsk, void __user *ufp) long arch_ptrace(struct task_struct *child, long request, long addr, long data) { - unsigned long tmp; int ret; switch (request) { @@ -666,12 +665,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) */ case PTRACE_PEEKTEXT: case PTRACE_PEEKDATA: - ret = access_process_vm(child, addr, &tmp, - sizeof(unsigned long), 0); - if (ret == sizeof(unsigned long)) - ret = put_user(tmp, (unsigned long __user *) data); - else - ret = -EIO; + ret = generic_ptrace_peekdata(child, addr, data); break; case PTRACE_PEEKUSR: @@ -683,12 +677,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) */ case PTRACE_POKETEXT: case PTRACE_POKEDATA: - ret = access_process_vm(child, addr, &data, - sizeof(unsigned long), 1); - if (ret == sizeof(unsigned long)) - ret = 0; - else - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 237f4999b9a1..f2114bcf09d5 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -249,6 +249,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err) bust_spinlocks(1); __die(str, err, thread, regs); bust_spinlocks(0); + add_taint(TAINT_DIE); spin_unlock_irq(&die_lock); if (in_interrupt()) diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 2b7a8f5d8cf2..5ff5406666b4 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -66,6 +66,7 @@ SECTIONS . = ALIGN(4096); __per_cpu_start = .; *(.data.percpu) + *(.data.percpu.shared_aligned) __per_cpu_end = .; #ifndef CONFIG_XIP_KERNEL __init_begin = _stext; diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c index e18a41e61f0c..dde089922e3b 100644 --- a/arch/arm/mach-at91/board-csb337.c +++ b/arch/arm/mach-at91/board-csb337.c @@ -23,6 +23,7 @@ #include <linux/mm.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/i2c.h> #include <linux/spi/spi.h> #include <linux/mtd/physmap.h> @@ -83,6 +84,13 @@ static struct at91_udc_data __initdata csb337_udc_data = { .pullup_pin = AT91_PIN_PA24, }; +static struct i2c_board_info __initdata csb337_i2c_devices[] = { + { I2C_BOARD_INFO("rtc-ds1307", 0x68), + .type = "ds1307", + }, +}; + + static struct at91_cf_data __initdata csb337_cf_data = { /* * connector P4 on the CSB 337 mates to @@ -161,6 +169,8 @@ static void __init csb337_board_init(void) at91_add_device_udc(&csb337_udc_data); /* I2C */ at91_add_device_i2c(); + i2c_register_board_info(0, csb337_i2c_devices, + ARRAY_SIZE(csb337_i2c_devices)); /* Compact Flash */ at91_set_gpio_input(AT91_PIN_PB22, 1); /* IOIS16 */ at91_add_device_cf(&csb337_cf_data); diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c index 9d63d7f260ca..99d94cb1bafd 100644 --- a/arch/arm/mach-iop13xx/pci.c +++ b/arch/arm/mach-iop13xx/pci.c @@ -1002,11 +1002,10 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) if (nr > 1) return 0; - res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL); + res = kcalloc(2, sizeof(struct resource), GFP_KERNEL); if (!res) panic("PCI: unable to alloc resources"); - memset(res, 0, sizeof(struct resource) * 2); /* 'nr' assumptions: * ATUX is always 0 diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c index 390a97d39e5a..1873bd8cd1b2 100644 --- a/arch/arm/mach-iop32x/n2100.c +++ b/arch/arm/mach-iop32x/n2100.c @@ -25,6 +25,7 @@ #include <linux/serial_core.h> #include <linux/serial_8250.h> #include <linux/mtd/physmap.h> +#include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/reboot.h> #include <asm/hardware.h> @@ -199,6 +200,12 @@ static struct platform_device n2100_serial_device = { .resource = &n2100_uart_resource, }; +static struct i2c_board_info __initdata n2100_i2c_devices[] = { + { + I2C_BOARD_INFO("rtc-rs5c372", 0x32), + .type = "rs5c372b", + }, +}; /* * Pull PCA9532 GPIO #8 low to power off the machine. @@ -248,6 +255,9 @@ static void __init n2100_init_machine(void) platform_device_register(&iop3xx_dma_0_channel); platform_device_register(&iop3xx_dma_1_channel); + i2c_register_board_info(0, n2100_i2c_devices, + ARRAY_SIZE(n2100_i2c_devices)); + pm_power_off = n2100_power_off; init_timer(&power_button_poll_timer); diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 75d491448e45..c04124a095cf 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -183,20 +183,20 @@ good_area: */ survive: fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, fsr & (1 << 11)); - - /* - * Handle the "normal" cases first - successful and sigbus - */ - switch (fault) { - case VM_FAULT_MAJOR: + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + return fault; + BUG(); + } + if (fault & VM_FAULT_MAJOR) tsk->maj_flt++; - return fault; - case VM_FAULT_MINOR: + else tsk->min_flt++; - case VM_FAULT_SIGBUS: - return fault; - } + return fault; +out_of_memory: if (!is_init(tsk)) goto out; @@ -249,7 +249,7 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) /* * Handle the "normal" case first - VM_FAULT_MAJOR / VM_FAULT_MINOR */ - if (fault >= VM_FAULT_MINOR) + if (likely(!(fault & VM_FAULT_ERROR))) return 0; /* @@ -259,8 +259,7 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) if (!user_mode(regs)) goto no_context; - switch (fault) { - case VM_FAULT_OOM: + if (fault & VM_FAULT_OOM) { /* * We ran out of memory, or some other thing * happened to us that made us unable to handle @@ -269,17 +268,15 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) printk("VM: killing process %s\n", tsk->comm); do_exit(SIGKILL); return 0; - - case VM_FAULT_SIGBUS: + } + if (fault & VM_FAULT_SIGBUS) { /* * We had some memory, but were unable to * successfully fix up this page fault. */ sig = SIGBUS; code = BUS_ADRERR; - break; - - default: + } else { /* * Something tried to access memory that * isn't in our memory map.. @@ -287,7 +284,6 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) sig = SIGSEGV; code = fault == VM_FAULT_BADACCESS ? SEGV_ACCERR : SEGV_MAPERR; - break; } __do_user_fault(tsk, addr, fsr, sig, code, regs); diff --git a/arch/arm26/kernel/ptrace.c b/arch/arm26/kernel/ptrace.c index 416927956721..0fefb86970c6 100644 --- a/arch/arm26/kernel/ptrace.c +++ b/arch/arm26/kernel/ptrace.c @@ -531,7 +531,6 @@ static int ptrace_setfpregs(struct task_struct *tsk, void *ufp) long arch_ptrace(struct task_struct *child, long request, long addr, long data) { - unsigned long tmp; int ret; switch (request) { @@ -540,12 +539,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) */ case PTRACE_PEEKTEXT: case PTRACE_PEEKDATA: - ret = access_process_vm(child, addr, &tmp, - sizeof(unsigned long), 0); - if (ret == sizeof(unsigned long)) - ret = put_user(tmp, (unsigned long *) data); - else - ret = -EIO; + ret = generic_ptrace_peekdata(child, addr, data); break; case PTRACE_PEEKUSR: @@ -557,12 +551,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) */ case PTRACE_POKETEXT: case PTRACE_POKEDATA: - ret = access_process_vm(child, addr, &data, - sizeof(unsigned long), 1); - if (ret == sizeof(unsigned long)) - ret = 0; - else - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: diff --git a/arch/arm26/kernel/traps.c b/arch/arm26/kernel/traps.c index d594fb59e945..2911e2eae80e 100644 --- a/arch/arm26/kernel/traps.c +++ b/arch/arm26/kernel/traps.c @@ -185,6 +185,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err) printk("Internal error: %s: %x\n", str, err); printk("CPU: %d\n", smp_processor_id()); show_regs(regs); + add_taint(TAINT_DIE); printk("Process %s (pid: %d, stack limit = 0x%p)\n", current->comm, current->pid, end_of_stack(tsk)); diff --git a/arch/arm26/mm/fault.c b/arch/arm26/mm/fault.c index 93c0cee0fb5e..dec638a0c8d9 100644 --- a/arch/arm26/mm/fault.c +++ b/arch/arm26/mm/fault.c @@ -170,20 +170,20 @@ good_area: */ survive: fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, DO_COW(fsr)); - - /* - * Handle the "normal" cases first - successful and sigbus - */ - switch (fault) { - case VM_FAULT_MAJOR: + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + return fault; + BUG(); + } + if (fault & VM_FAULT_MAJOR) tsk->maj_flt++; - return fault; - case VM_FAULT_MINOR: + else tsk->min_flt++; - case VM_FAULT_SIGBUS: - return fault; - } + return fault; +out_of_memory: fault = -3; /* out of memory */ if (!is_init(tsk)) goto out; @@ -225,13 +225,11 @@ int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) /* * Handle the "normal" case first */ - switch (fault) { - case VM_FAULT_MINOR: - case VM_FAULT_MAJOR: + if (likely(!(fault & VM_FAULT_ERROR))) return 0; - case VM_FAULT_SIGBUS: + if (fault & VM_FAULT_SIGBUS) goto do_sigbus; - } + /* else VM_FAULT_OOM */ /* * If we are in kernel mode at this point, we diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index 3ec76586877e..d12346aaa88b 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -113,6 +113,10 @@ config BOARD_ATNGW100 bool "ATNGW100 Network Gateway" endchoice +if BOARD_ATSTK1000 +source "arch/avr32/boards/atstk1000/Kconfig" +endif + choice prompt "Boot loader type" default LOADER_U_BOOT @@ -185,6 +189,27 @@ config CMDLINE endmenu +menu "Power managment options" + +menu "CPU Frequency scaling" + +source "drivers/cpufreq/Kconfig" + +config CPU_FREQ_AT32AP + bool "CPU frequency driver for AT32AP" + depends on CPU_FREQ && PLATFORM_AT32AP + default n + help + This enables the CPU frequency driver for AT32AP processors. + + For details, take a look in <file:Documentation/cpu-freq>. + + If in doubt, say N. + +endmenu + +endmenu + menu "Bus options" config PCI diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig new file mode 100644 index 000000000000..71bc7d364fb7 --- /dev/null +++ b/arch/avr32/boards/atstk1000/Kconfig @@ -0,0 +1,53 @@ +# STK1000 customization + +if BOARD_ATSTK1002 + +config BOARD_ATSTK1002_CUSTOM + bool "Non-default STK-1002 jumper settings" + help + You will normally leave the jumpers on the CPU card at their + default settings. If you need to use certain peripherals, + you will need to change some of those jumpers. + +if BOARD_ATSTK1002_CUSTOM + +config BOARD_ATSTK1002_SW1_CUSTOM + bool "SW1: use SSC1 (not SPI0)" + help + This also prevents using the external DAC as an audio interface, + and means you can't initialize the on-board QVGA display. + +config BOARD_ATSTK1002_SW2_CUSTOM + bool "SW2: use IRDA or TIMER0 (not UART-A, MMC/SD, and PS2-A)" + help + If you change this you'll want an updated boot loader putting + the console on UART-C not UART-A. + +config BOARD_ATSTK1002_SW3_CUSTOM + bool "SW3: use TIMER1 (not SSC0 and GCLK)" + help + This also prevents using the external DAC as an audio interface. + +config BOARD_ATSTK1002_SW4_CUSTOM + bool "SW4: use ISI/Camera (not GPIOs, SPI1, and PS2-B)" + help + To use the camera interface you'll need a custom card (on the + PCI-format connector) connect a video sensor. + +config BOARD_ATSTK1002_SW5_CUSTOM + bool "SW5: use MACB1 (not LCDC)" + +config BOARD_ATSTK1002_SW6_CUSTOM + bool "SW6: more GPIOs (not MACB0)" + +endif # custom + +config BOARD_ATSTK1002_SPI1 + bool "Configure SPI1 controller" + depends on !BOARD_ATSTK1002_SW4_CUSTOM + help + All the signals for the second SPI controller are available on + GPIO lines and accessed through the J1 jumper block. Say "y" + here to configure that SPI controller. + +endif # stk 1002 diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c index e253e86a1a39..cb93eabb9c6c 100644 --- a/arch/avr32/boards/atstk1000/atstk1002.c +++ b/arch/avr32/boards/atstk1000/atstk1002.c @@ -27,15 +27,27 @@ #include "atstk1000.h" -#define SW2_DEFAULT /* MMCI and UART_A available */ struct eth_addr { u8 addr[6]; }; static struct eth_addr __initdata hw_addr[2]; -static struct eth_platform_data __initdata eth_data[2]; +static struct eth_platform_data __initdata eth_data[2] = { + { + /* + * The MDIO pullups on STK1000 are a bit too weak for + * the autodetection to work properly, so we have to + * mask out everything but the correct address. + */ + .phy_mask = ~(1U << 16), + }, + { + .phy_mask = ~(1U << 17), + }, +}; +#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM static struct spi_board_info spi0_board_info[] __initdata = { { /* QVGA display */ @@ -45,6 +57,13 @@ static struct spi_board_info spi0_board_info[] __initdata = { .mode = SPI_MODE_3, }, }; +#endif + +#ifdef CONFIG_BOARD_ATSTK1002_SPI1 +static struct spi_board_info spi1_board_info[] __initdata = { { + /* patch in custom entries here */ +} }; +#endif /* * The next two functions should go away as the boot loader is @@ -103,10 +122,10 @@ static void __init set_hw_addr(struct platform_device *pdev) void __init setup_board(void) { -#ifdef SW2_DEFAULT - at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */ -#else +#ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */ +#else + at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */ #endif /* USART 2/unused: expansion connector */ at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */ @@ -140,18 +159,31 @@ static int __init atstk1002_init(void) at32_add_system_devices(); -#ifdef SW2_DEFAULT - at32_add_device_usart(0); -#else +#ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM at32_add_device_usart(1); +#else + at32_add_device_usart(0); #endif at32_add_device_usart(2); +#ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM set_hw_addr(at32_add_device_eth(0, ð_data[0])); - +#endif +#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); +#endif +#ifdef CONFIG_BOARD_ATSTK1002_SPI1 + at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info)); +#endif +#ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM + set_hw_addr(at32_add_device_eth(1, ð_data[1])); +#else at32_add_device_lcdc(0, &atstk1000_lcdc_data, fbmem_start, fbmem_size); +#endif +#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM + at32_add_device_ssc(0, ATMEL_SSC_TX); +#endif return 0; } diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c index 3c36c2d16148..39060cbeb2a3 100644 --- a/arch/avr32/kernel/ptrace.c +++ b/arch/avr32/kernel/ptrace.c @@ -153,7 +153,6 @@ static int ptrace_setregs(struct task_struct *tsk, const void __user *uregs) long arch_ptrace(struct task_struct *child, long request, long addr, long data) { - unsigned long tmp; int ret; pr_debug("arch_ptrace(%ld, %d, %#lx, %#lx)\n", @@ -166,11 +165,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* Read the word at location addr in the child process */ case PTRACE_PEEKTEXT: case PTRACE_PEEKDATA: - ret = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - if (ret == sizeof(tmp)) - ret = put_user(tmp, (unsigned long __user *)data); - else - ret = -EIO; + ret = generic_ptrace_peekdata(child, addr, data); break; case PTRACE_PEEKUSR: @@ -181,11 +176,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* Write the word in data at location addr */ case PTRACE_POKETEXT: case PTRACE_POKEDATA: - ret = access_process_vm(child, addr, &data, sizeof(data), 1); - if (ret == sizeof(data)) - ret = 0; - else - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c index b279d66acf5f..d08b0bc6b2bb 100644 --- a/arch/avr32/kernel/setup.c +++ b/arch/avr32/kernel/setup.c @@ -313,7 +313,7 @@ __tagtable(ATAG_MEM, parse_tag_mem); static int __init parse_tag_rdimg(struct tag *tag) { -#ifdef CONFIG_INITRD +#ifdef CONFIG_BLK_DEV_INITRD struct tag_mem_range *mem = &tag->u.mem_range; int ret; @@ -323,7 +323,7 @@ static int __init parse_tag_rdimg(struct tag *tag) return 0; } - ret = add_reserved_region(mem->start, mem->start + mem->size - 1, + ret = add_reserved_region(mem->addr, mem->addr + mem->size - 1, "initrd"); if (ret) { printk(KERN_WARNING diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c index aaa792815cd7..9a73ce7eb50f 100644 --- a/arch/avr32/kernel/traps.c +++ b/arch/avr32/kernel/traps.c @@ -56,6 +56,7 @@ void NORET_TYPE die(const char *str, struct pt_regs *regs, long err) show_regs_log_lvl(regs, KERN_EMERG); show_stack_log_lvl(current, regs->sp, regs, KERN_EMERG); bust_spinlocks(0); + add_taint(TAINT_DIE); spin_unlock_irq(&die_lock); if (in_interrupt()) diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile index f1d395724ac6..a8b445046e3e 100644 --- a/arch/avr32/mach-at32ap/Makefile +++ b/arch/avr32/mach-at32ap/Makefile @@ -1,3 +1,4 @@ obj-y += at32ap.o clock.o intc.o extint.o pio.o hsmc.o obj-$(CONFIG_CPU_AT32AP7000) += at32ap7000.o obj-$(CONFIG_CPU_AT32AP7000) += time-tc.o +obj-$(CONFIG_CPU_FREQ_AT32AP) += cpufreq.o diff --git a/arch/avr32/mach-at32ap/at32ap.c b/arch/avr32/mach-at32ap/at32ap.c index 90f207e8e96d..7c4987f3287a 100644 --- a/arch/avr32/mach-at32ap/at32ap.c +++ b/arch/avr32/mach-at32ap/at32ap.c @@ -11,41 +11,10 @@ #include <linux/init.h> #include <linux/platform_device.h> -#include <asm/io.h> - #include <asm/arch/init.h> -#include <asm/arch/sm.h> - -struct at32_sm system_manager; - -static int __init at32_sm_init(void) -{ - struct resource *regs; - struct at32_sm *sm = &system_manager; - int ret = -ENXIO; - - regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0); - if (!regs) - goto fail; - - spin_lock_init(&sm->lock); - sm->pdev = &at32_sm_device; - - ret = -ENOMEM; - sm->regs = ioremap(regs->start, regs->end - regs->start + 1); - if (!sm->regs) - goto fail; - - return 0; - -fail: - printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret); - return ret; -} void __init setup_platform(void) { - at32_sm_init(); at32_clock_init(); at32_portmux_init(); } diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index 4dda42d3f6d5..64cc5583ddfb 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c @@ -17,14 +17,20 @@ #include <asm/arch/at32ap7000.h> #include <asm/arch/board.h> #include <asm/arch/portmux.h> -#include <asm/arch/sm.h> #include <video/atmel_lcdc.h> #include "clock.h" #include "hmatrix.h" #include "pio.h" -#include "sm.h" +#include "pm.h" + +/* + * We can reduce the code size a bit by using a constant here. Since + * this file is completely chip-specific, it's safe to not use + * ioremap. Generic drivers should of course never do this. + */ +#define AT32_PM_BASE 0xfff00000 #define PBMEM(base) \ { \ @@ -88,6 +94,8 @@ static struct clk devname##_##_name = { \ .index = _index, \ } +static DEFINE_SPINLOCK(pm_lock); + unsigned long at32ap7000_osc_rates[3] = { [0] = 32768, /* FIXME: these are ATSTK1002-specific */ @@ -104,11 +112,11 @@ static unsigned long pll_get_rate(struct clk *clk, unsigned long control) { unsigned long div, mul, rate; - if (!(control & SM_BIT(PLLEN))) + if (!(control & PM_BIT(PLLEN))) return 0; - div = SM_BFEXT(PLLDIV, control) + 1; - mul = SM_BFEXT(PLLMUL, control) + 1; + div = PM_BFEXT(PLLDIV, control) + 1; + mul = PM_BFEXT(PLLMUL, control) + 1; rate = clk->parent->get_rate(clk->parent); rate = (rate + div / 2) / div; @@ -121,7 +129,7 @@ static unsigned long pll0_get_rate(struct clk *clk) { u32 control; - control = sm_readl(&system_manager, PM_PLL0); + control = pm_readl(PLL0); return pll_get_rate(clk, control); } @@ -130,7 +138,7 @@ static unsigned long pll1_get_rate(struct clk *clk) { u32 control; - control = sm_readl(&system_manager, PM_PLL1); + control = pm_readl(PLL1); return pll_get_rate(clk, control); } @@ -187,108 +195,139 @@ static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift) static void cpu_clk_mode(struct clk *clk, int enabled) { - struct at32_sm *sm = &system_manager; unsigned long flags; u32 mask; - spin_lock_irqsave(&sm->lock, flags); - mask = sm_readl(sm, PM_CPU_MASK); + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(CPU_MASK); if (enabled) mask |= 1 << clk->index; else mask &= ~(1 << clk->index); - sm_writel(sm, PM_CPU_MASK, mask); - spin_unlock_irqrestore(&sm->lock, flags); + pm_writel(CPU_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); } static unsigned long cpu_clk_get_rate(struct clk *clk) { unsigned long cksel, shift = 0; - cksel = sm_readl(&system_manager, PM_CKSEL); - if (cksel & SM_BIT(CPUDIV)) - shift = SM_BFEXT(CPUSEL, cksel) + 1; + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(CPUDIV)) + shift = PM_BFEXT(CPUSEL, cksel) + 1; return bus_clk_get_rate(clk, shift); } +static long cpu_clk_set_rate(struct clk *clk, unsigned long rate, int apply) +{ + u32 control; + unsigned long parent_rate, child_div, actual_rate, div; + + parent_rate = clk->parent->get_rate(clk->parent); + control = pm_readl(CKSEL); + + if (control & PM_BIT(HSBDIV)) + child_div = 1 << (PM_BFEXT(HSBSEL, control) + 1); + else + child_div = 1; + + if (rate > 3 * (parent_rate / 4) || child_div == 1) { + actual_rate = parent_rate; + control &= ~PM_BIT(CPUDIV); + } else { + unsigned int cpusel; + div = (parent_rate + rate / 2) / rate; + if (div > child_div) + div = child_div; + cpusel = (div > 1) ? (fls(div) - 2) : 0; + control = PM_BIT(CPUDIV) | PM_BFINS(CPUSEL, cpusel, control); + actual_rate = parent_rate / (1 << (cpusel + 1)); + } + + pr_debug("clk %s: new rate %lu (actual rate %lu)\n", + clk->name, rate, actual_rate); + + if (apply) + pm_writel(CKSEL, control); + + return actual_rate; +} + static void hsb_clk_mode(struct clk *clk, int enabled) { - struct at32_sm *sm = &system_manager; unsigned long flags; u32 mask; - spin_lock_irqsave(&sm->lock, flags); - mask = sm_readl(sm, PM_HSB_MASK); + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(HSB_MASK); if (enabled) mask |= 1 << clk->index; else mask &= ~(1 << clk->index); - sm_writel(sm, PM_HSB_MASK, mask); - spin_unlock_irqrestore(&sm->lock, flags); + pm_writel(HSB_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); } static unsigned long hsb_clk_get_rate(struct clk *clk) { unsigned long cksel, shift = 0; - cksel = sm_readl(&system_manager, PM_CKSEL); - if (cksel & SM_BIT(HSBDIV)) - shift = SM_BFEXT(HSBSEL, cksel) + 1; + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(HSBDIV)) + shift = PM_BFEXT(HSBSEL, cksel) + 1; return bus_clk_get_rate(clk, shift); } static void pba_clk_mode(struct clk *clk, int enabled) { - struct at32_sm *sm = &system_manager; unsigned long flags; u32 mask; - spin_lock_irqsave(&sm->lock, flags); - mask = sm_readl(sm, PM_PBA_MASK); + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(PBA_MASK); if (enabled) mask |= 1 << clk->index; else mask &= ~(1 << clk->index); - sm_writel(sm, PM_PBA_MASK, mask); - spin_unlock_irqrestore(&sm->lock, flags); + pm_writel(PBA_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); } static unsigned long pba_clk_get_rate(struct clk *clk) { unsigned long cksel, shift = 0; - cksel = sm_readl(&system_manager, PM_CKSEL); - if (cksel & SM_BIT(PBADIV)) - shift = SM_BFEXT(PBASEL, cksel) + 1; + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(PBADIV)) + shift = PM_BFEXT(PBASEL, cksel) + 1; return bus_clk_get_rate(clk, shift); } static void pbb_clk_mode(struct clk *clk, int enabled) { - struct at32_sm *sm = &system_manager; unsigned long flags; u32 mask; - spin_lock_irqsave(&sm->lock, flags); - mask = sm_readl(sm, PM_PBB_MASK); + spin_lock_irqsave(&pm_lock, flags); + mask = pm_readl(PBB_MASK); if (enabled) mask |= 1 << clk->index; else mask &= ~(1 << clk->index); - sm_writel(sm, PM_PBB_MASK, mask); - spin_unlock_irqrestore(&sm->lock, flags); + pm_writel(PBB_MASK, mask); + spin_unlock_irqrestore(&pm_lock, flags); } static unsigned long pbb_clk_get_rate(struct clk *clk) { unsigned long cksel, shift = 0; - cksel = sm_readl(&system_manager, PM_CKSEL); - if (cksel & SM_BIT(PBBDIV)) - shift = SM_BFEXT(PBBSEL, cksel) + 1; + cksel = pm_readl(CKSEL); + if (cksel & PM_BIT(PBBDIV)) + shift = PM_BFEXT(PBBSEL, cksel) + 1; return bus_clk_get_rate(clk, shift); } @@ -296,6 +335,7 @@ static unsigned long pbb_clk_get_rate(struct clk *clk) static struct clk cpu_clk = { .name = "cpu", .get_rate = cpu_clk_get_rate, + .set_rate = cpu_clk_set_rate, .users = 1, }; static struct clk hsb_clk = { @@ -327,12 +367,12 @@ static void genclk_mode(struct clk *clk, int enabled) { u32 control; - control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); + control = pm_readl(GCCTRL(clk->index)); if (enabled) - control |= SM_BIT(CEN); + control |= PM_BIT(CEN); else - control &= ~SM_BIT(CEN); - sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control); + control &= ~PM_BIT(CEN); + pm_writel(GCCTRL(clk->index), control); } static unsigned long genclk_get_rate(struct clk *clk) @@ -340,9 +380,9 @@ static unsigned long genclk_get_rate(struct clk *clk) u32 control; unsigned long div = 1; - control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); - if (control & SM_BIT(DIVEN)) - div = 2 * (SM_BFEXT(DIV, control) + 1); + control = pm_readl(GCCTRL(clk->index)); + if (control & PM_BIT(DIVEN)) + div = 2 * (PM_BFEXT(DIV, control) + 1); return clk->parent->get_rate(clk->parent) / div; } @@ -353,23 +393,22 @@ static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply) unsigned long parent_rate, actual_rate, div; parent_rate = clk->parent->get_rate(clk->parent); - control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); + control = pm_readl(GCCTRL(clk->index)); if (rate > 3 * parent_rate / 4) { actual_rate = parent_rate; - control &= ~SM_BIT(DIVEN); + control &= ~PM_BIT(DIVEN); } else { div = (parent_rate + rate) / (2 * rate) - 1; - control = SM_BFINS(DIV, div, control) | SM_BIT(DIVEN); + control = PM_BFINS(DIV, div, control) | PM_BIT(DIVEN); actual_rate = parent_rate / (2 * (div + 1)); } - printk("clk %s: new rate %lu (actual rate %lu)\n", - clk->name, rate, actual_rate); + dev_dbg(clk->dev, "clk %s: new rate %lu (actual rate %lu)\n", + clk->name, rate, actual_rate); if (apply) - sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, - control); + pm_writel(GCCTRL(clk->index), control); return actual_rate; } @@ -378,24 +417,24 @@ int genclk_set_parent(struct clk *clk, struct clk *parent) { u32 control; - printk("clk %s: new parent %s (was %s)\n", - clk->name, parent->name, clk->parent->name); + dev_dbg(clk->dev, "clk %s: new parent %s (was %s)\n", + clk->name, parent->name, clk->parent->name); - control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); + control = pm_readl(GCCTRL(clk->index)); if (parent == &osc1 || parent == &pll1) - control |= SM_BIT(OSCSEL); + control |= PM_BIT(OSCSEL); else if (parent == &osc0 || parent == &pll0) - control &= ~SM_BIT(OSCSEL); + control &= ~PM_BIT(OSCSEL); else return -EINVAL; if (parent == &pll0 || parent == &pll1) - control |= SM_BIT(PLLSEL); + control |= PM_BIT(PLLSEL); else - control &= ~SM_BIT(PLLSEL); + control &= ~PM_BIT(PLLSEL); - sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control); + pm_writel(GCCTRL(clk->index), control); clk->parent = parent; return 0; @@ -408,11 +447,11 @@ static void __init genclk_init_parent(struct clk *clk) BUG_ON(clk->index > 7); - control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); - if (control & SM_BIT(OSCSEL)) - parent = (control & SM_BIT(PLLSEL)) ? &pll1 : &osc1; + control = pm_readl(GCCTRL(clk->index)); + if (control & PM_BIT(OSCSEL)) + parent = (control & PM_BIT(PLLSEL)) ? &pll1 : &osc1; else - parent = (control & SM_BIT(PLLSEL)) ? &pll0 : &osc0; + parent = (control & PM_BIT(PLLSEL)) ? &pll0 : &osc0; clk->parent = parent; } @@ -420,21 +459,53 @@ static void __init genclk_init_parent(struct clk *clk) /* -------------------------------------------------------------------- * System peripherals * -------------------------------------------------------------------- */ -static struct resource sm_resource[] = { - PBMEM(0xfff00000), - NAMED_IRQ(19, "eim"), - NAMED_IRQ(20, "pm"), - NAMED_IRQ(21, "rtc"), +static struct resource at32_pm0_resource[] = { + { + .start = 0xfff00000, + .end = 0xfff0007f, + .flags = IORESOURCE_MEM, + }, + IRQ(20), }; -struct platform_device at32_sm_device = { - .name = "sm", - .id = 0, - .resource = sm_resource, - .num_resources = ARRAY_SIZE(sm_resource), + +static struct resource at32ap700x_rtc0_resource[] = { + { + .start = 0xfff00080, + .end = 0xfff000af, + .flags = IORESOURCE_MEM, + }, + IRQ(21), +}; + +static struct resource at32_wdt0_resource[] = { + { + .start = 0xfff000b0, + .end = 0xfff000bf, + .flags = IORESOURCE_MEM, + }, +}; + +static struct resource at32_eic0_resource[] = { + { + .start = 0xfff00100, + .end = 0xfff0013f, + .flags = IORESOURCE_MEM, + }, + IRQ(19), }; -static struct clk at32_sm_pclk = { + +DEFINE_DEV(at32_pm, 0); +DEFINE_DEV(at32ap700x_rtc, 0); +DEFINE_DEV(at32_wdt, 0); +DEFINE_DEV(at32_eic, 0); + +/* + * Peripheral clock for PM, RTC, WDT and EIC. PM will ensure that this + * is always running. + */ +static struct clk at32_pm_pclk = { .name = "pclk", - .dev = &at32_sm_device.dev, + .dev = &at32_pm0_device.dev, .parent = &pbb_clk, .mode = pbb_clk_mode, .get_rate = pbb_clk_get_rate, @@ -583,10 +654,11 @@ DEV_CLK(mck, pio4, pba, 14); void __init at32_add_system_devices(void) { - system_manager.eim_first_irq = EIM_IRQ_BASE; - - platform_device_register(&at32_sm_device); + platform_device_register(&at32_pm0_device); platform_device_register(&at32_intc0_device); + platform_device_register(&at32ap700x_rtc0_device); + platform_device_register(&at32_wdt0_device); + platform_device_register(&at32_eic0_device); platform_device_register(&smc0_device); platform_device_register(&pdc_device); @@ -1013,6 +1085,89 @@ err_dup_modedb: } /* -------------------------------------------------------------------- + * SSC + * -------------------------------------------------------------------- */ +static struct resource ssc0_resource[] = { + PBMEM(0xffe01c00), + IRQ(10), +}; +DEFINE_DEV(ssc, 0); +DEV_CLK(pclk, ssc0, pba, 7); + +static struct resource ssc1_resource[] = { + PBMEM(0xffe02000), + IRQ(11), +}; +DEFINE_DEV(ssc, 1); +DEV_CLK(pclk, ssc1, pba, 8); + +static struct resource ssc2_resource[] = { + PBMEM(0xffe02400), + IRQ(12), +}; +DEFINE_DEV(ssc, 2); +DEV_CLK(pclk, ssc2, pba, 9); + +struct platform_device *__init +at32_add_device_ssc(unsigned int id, unsigned int flags) +{ + struct platform_device *pdev; + + switch (id) { + case 0: + pdev = &ssc0_device; + if (flags & ATMEL_SSC_RF) + select_peripheral(PA(21), PERIPH_A, 0); /* RF */ + if (flags & ATMEL_SSC_RK) + select_peripheral(PA(22), PERIPH_A, 0); /* RK */ + if (flags & ATMEL_SSC_TK) + select_peripheral(PA(23), PERIPH_A, 0); /* TK */ + if (flags & ATMEL_SSC_TF) + select_peripheral(PA(24), PERIPH_A, 0); /* TF */ + if (flags & ATMEL_SSC_TD) + select_peripheral(PA(25), PERIPH_A, 0); /* TD */ + if (flags & ATMEL_SSC_RD) + select_peripheral(PA(26), PERIPH_A, 0); /* RD */ + break; + case 1: + pdev = &ssc1_device; + if (flags & ATMEL_SSC_RF) + select_peripheral(PA(0), PERIPH_B, 0); /* RF */ + if (flags & ATMEL_SSC_RK) + select_peripheral(PA(1), PERIPH_B, 0); /* RK */ + if (flags & ATMEL_SSC_TK) + select_peripheral(PA(2), PERIPH_B, 0); /* TK */ + if (flags & ATMEL_SSC_TF) + select_peripheral(PA(3), PERIPH_B, 0); /* TF */ + if (flags & ATMEL_SSC_TD) + select_peripheral(PA(4), PERIPH_B, 0); /* TD */ + if (flags & ATMEL_SSC_RD) + select_peripheral(PA(5), PERIPH_B, 0); /* RD */ + break; + case 2: + pdev = &ssc2_device; + if (flags & ATMEL_SSC_TD) + select_peripheral(PB(13), PERIPH_A, 0); /* TD */ + if (flags & ATMEL_SSC_RD) + select_peripheral(PB(14), PERIPH_A, 0); /* RD */ + if (flags & ATMEL_SSC_TK) + select_peripheral(PB(15), PERIPH_A, 0); /* TK */ + if (flags & ATMEL_SSC_TF) + select_peripheral(PB(16), PERIPH_A, 0); /* TF */ + if (flags & ATMEL_SSC_RF) + select_peripheral(PB(17), PERIPH_A, 0); /* RF */ + if (flags & ATMEL_SSC_RK) + select_peripheral(PB(18), PERIPH_A, 0); /* RK */ + break; + default: + return NULL; + } + + platform_device_register(pdev); + return pdev; +} + +/* -------------------------------------------------------------------- * GCLK * -------------------------------------------------------------------- */ static struct clk gclk0 = { @@ -1066,7 +1221,7 @@ struct clk *at32_clock_list[] = { &hsb_clk, &pba_clk, &pbb_clk, - &at32_sm_pclk, + &at32_pm_pclk, &at32_intc0_pclk, &hmatrix_clk, &ebi_clk, @@ -1094,6 +1249,9 @@ struct clk *at32_clock_list[] = { &atmel_spi1_spi_clk, &atmel_lcdfb0_hck1, &atmel_lcdfb0_pixclk, + &ssc0_pclk, + &ssc1_pclk, + &ssc2_pclk, &gclk0, &gclk1, &gclk2, @@ -1113,18 +1271,20 @@ void __init at32_portmux_init(void) void __init at32_clock_init(void) { - struct at32_sm *sm = &system_manager; u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0; int i; - if (sm_readl(sm, PM_MCCTRL) & SM_BIT(PLLSEL)) + if (pm_readl(MCCTRL) & PM_BIT(PLLSEL)) { main_clock = &pll0; - else + cpu_clk.parent = &pll0; + } else { main_clock = &osc0; + cpu_clk.parent = &osc0; + } - if (sm_readl(sm, PM_PLL0) & SM_BIT(PLLOSC)) + if (pm_readl(PLL0) & PM_BIT(PLLOSC)) pll0.parent = &osc1; - if (sm_readl(sm, PM_PLL1) & SM_BIT(PLLOSC)) + if (pm_readl(PLL1) & PM_BIT(PLLOSC)) pll1.parent = &osc1; genclk_init_parent(&gclk0); @@ -1157,8 +1317,8 @@ void __init at32_clock_init(void) pbb_mask |= 1 << clk->index; } - sm_writel(sm, PM_CPU_MASK, cpu_mask); - sm_writel(sm, PM_HSB_MASK, hsb_mask); - sm_writel(sm, PM_PBA_MASK, pba_mask); - sm_writel(sm, PM_PBB_MASK, pbb_mask); + pm_writel(CPU_MASK, cpu_mask); + pm_writel(HSB_MASK, hsb_mask); + pm_writel(PBA_MASK, pba_mask); + pm_writel(PBB_MASK, pbb_mask); } diff --git a/arch/avr32/mach-at32ap/cpufreq.c b/arch/avr32/mach-at32ap/cpufreq.c new file mode 100644 index 000000000000..235524b79193 --- /dev/null +++ b/arch/avr32/mach-at32ap/cpufreq.c @@ -0,0 +1,112 @@ +/* + * Copyright (C) 2004-2007 Atmel Corporation + * + * Based on MIPS implementation arch/mips/kernel/time.c + * Copyright 2001 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/*#define DEBUG*/ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/cpufreq.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <asm/system.h> + +static struct clk *cpuclk; + +static int at32_verify_speed(struct cpufreq_policy *policy) +{ + if (policy->cpu != 0) + return -EINVAL; + + cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, + policy->cpuinfo.max_freq); + return 0; +} + +static unsigned int at32_get_speed(unsigned int cpu) +{ + /* No SMP support */ + if (cpu) + return 0; + return (unsigned int)((clk_get_rate(cpuclk) + 500) / 1000); +} + +static int at32_set_target(struct cpufreq_policy *policy, + unsigned int target_freq, + unsigned int relation) +{ + struct cpufreq_freqs freqs; + long freq; + + /* Convert target_freq from kHz to Hz */ + freq = clk_round_rate(cpuclk, target_freq * 1000); + + /* Check if policy->min <= new_freq <= policy->max */ + if(freq < (policy->min * 1000) || freq > (policy->max * 1000)) + return -EINVAL; + + pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000); + + freqs.old = at32_get_speed(0); + freqs.new = (freq + 500) / 1000; + freqs.cpu = 0; + freqs.flags = 0; + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + clk_set_rate(cpuclk, freq); + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + + pr_debug("cpufreq: set frequency %lu Hz\n", freq); + + return 0; +} + +static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) +{ + if (policy->cpu != 0) + return -EINVAL; + + cpuclk = clk_get(NULL, "cpu"); + if (IS_ERR(cpuclk)) { + pr_debug("cpufreq: could not get CPU clk\n"); + return PTR_ERR(cpuclk); + } + + policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000; + policy->cpuinfo.max_freq = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; + policy->cpuinfo.transition_latency = 0; + policy->cur = at32_get_speed(0); + policy->min = policy->cpuinfo.min_freq; + policy->max = policy->cpuinfo.max_freq; + policy->governor = CPUFREQ_DEFAULT_GOVERNOR; + + printk("cpufreq: AT32AP CPU frequency driver\n"); + + return 0; +} + +static struct cpufreq_driver at32_driver = { + .name = "at32ap", + .owner = THIS_MODULE, + .init = at32_cpufreq_driver_init, + .verify = at32_verify_speed, + .target = at32_set_target, + .get = at32_get_speed, + .flags = CPUFREQ_STICKY, +}; + +static int __init at32_cpufreq_init(void) +{ + return cpufreq_register_driver(&at32_driver); +} + +arch_initcall(at32_cpufreq_init); diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c index 4a60eccfebd2..8acd01090031 100644 --- a/arch/avr32/mach-at32ap/extint.c +++ b/arch/avr32/mach-at32ap/extint.c @@ -17,42 +17,83 @@ #include <asm/io.h> -#include <asm/arch/sm.h> - -#include "sm.h" +/* EIC register offsets */ +#define EIC_IER 0x0000 +#define EIC_IDR 0x0004 +#define EIC_IMR 0x0008 +#define EIC_ISR 0x000c +#define EIC_ICR 0x0010 +#define EIC_MODE 0x0014 +#define EIC_EDGE 0x0018 +#define EIC_LEVEL 0x001c +#define EIC_TEST 0x0020 +#define EIC_NMIC 0x0024 + +/* Bitfields in TEST */ +#define EIC_TESTEN_OFFSET 31 +#define EIC_TESTEN_SIZE 1 + +/* Bitfields in NMIC */ +#define EIC_EN_OFFSET 0 +#define EIC_EN_SIZE 1 + +/* Bit manipulation macros */ +#define EIC_BIT(name) \ + (1 << EIC_##name##_OFFSET) +#define EIC_BF(name,value) \ + (((value) & ((1 << EIC_##name##_SIZE) - 1)) \ + << EIC_##name##_OFFSET) +#define EIC_BFEXT(name,value) \ + (((value) >> EIC_##name##_OFFSET) \ + & ((1 << EIC_##name##_SIZE) - 1)) +#define EIC_BFINS(name,value,old) \ + (((old) & ~(((1 << EIC_##name##_SIZE) - 1) \ + << EIC_##name##_OFFSET)) \ + | EIC_BF(name,value)) + +/* Register access macros */ +#define eic_readl(port,reg) \ + __raw_readl((port)->regs + EIC_##reg) +#define eic_writel(port,reg,value) \ + __raw_writel((value), (port)->regs + EIC_##reg) + +struct eic { + void __iomem *regs; + struct irq_chip *chip; + unsigned int first_irq; +}; -static void eim_ack_irq(unsigned int irq) +static void eic_ack_irq(unsigned int irq) { - struct at32_sm *sm = get_irq_chip_data(irq); - sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq)); + struct eic *eic = get_irq_chip_data(irq); + eic_writel(eic, ICR, 1 << (irq - eic->first_irq)); } -static void eim_mask_irq(unsigned int irq) +static void eic_mask_irq(unsigned int irq) { - struct at32_sm *sm = get_irq_chip_data(irq); - sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq)); + struct eic *eic = get_irq_chip_data(irq); + eic_writel(eic, IDR, 1 << (irq - eic->first_irq)); } -static void eim_mask_ack_irq(unsigned int irq) +static void eic_mask_ack_irq(unsigned int irq) { - struct at32_sm *sm = get_irq_chip_data(irq); - sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq)); - sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq)); + struct eic *eic = get_irq_chip_data(irq); + eic_writel(eic, ICR, 1 << (irq - eic->first_irq)); + eic_writel(eic, IDR, 1 << (irq - eic->first_irq)); } -static void eim_unmask_irq(unsigned int irq) +static void eic_unmask_irq(unsigned int irq) { - struct at32_sm *sm = get_irq_chip_data(irq); - sm_writel(sm, EIM_IER, 1 << (irq - sm->eim_first_irq)); + struct eic *eic = get_irq_chip_data(irq); + eic_writel(eic, IER, 1 << (irq - eic->first_irq)); } -static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) +static int eic_set_irq_type(unsigned int irq, unsigned int flow_type) { - struct at32_sm *sm = get_irq_chip_data(irq); + struct eic *eic = get_irq_chip_data(irq); struct irq_desc *desc; - unsigned int i = irq - sm->eim_first_irq; + unsigned int i = irq - eic->first_irq; u32 mode, edge, level; - unsigned long flags; int ret = 0; flow_type &= IRQ_TYPE_SENSE_MASK; @@ -60,11 +101,10 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) flow_type = IRQ_TYPE_LEVEL_LOW; desc = &irq_desc[irq]; - spin_lock_irqsave(&sm->lock, flags); - mode = sm_readl(sm, EIM_MODE); - edge = sm_readl(sm, EIM_EDGE); - level = sm_readl(sm, EIM_LEVEL); + mode = eic_readl(eic, MODE); + edge = eic_readl(eic, EDGE); + level = eic_readl(eic, LEVEL); switch (flow_type) { case IRQ_TYPE_LEVEL_LOW: @@ -89,9 +129,9 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) } if (ret == 0) { - sm_writel(sm, EIM_MODE, mode); - sm_writel(sm, EIM_EDGE, edge); - sm_writel(sm, EIM_LEVEL, level); + eic_writel(eic, MODE, mode); + eic_writel(eic, EDGE, edge); + eic_writel(eic, LEVEL, level); if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) flow_type |= IRQ_LEVEL; @@ -99,35 +139,33 @@ static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) desc->status |= flow_type; } - spin_unlock_irqrestore(&sm->lock, flags); - return ret; } -struct irq_chip eim_chip = { - .name = "eim", - .ack = eim_ack_irq, - .mask = eim_mask_irq, - .mask_ack = eim_mask_ack_irq, - .unmask = eim_unmask_irq, - .set_type = eim_set_irq_type, +struct irq_chip eic_chip = { + .name = "eic", + .ack = eic_ack_irq, + .mask = eic_mask_irq, + .mask_ack = eic_mask_ack_irq, + .unmask = eic_unmask_irq, + .set_type = eic_set_irq_type, }; -static void demux_eim_irq(unsigned int irq, struct irq_desc *desc) +static void demux_eic_irq(unsigned int irq, struct irq_desc *desc) { - struct at32_sm *sm = desc->handler_data; + struct eic *eic = desc->handler_data; struct irq_desc *ext_desc; unsigned long status, pending; unsigned int i, ext_irq; - status = sm_readl(sm, EIM_ISR); - pending = status & sm_readl(sm, EIM_IMR); + status = eic_readl(eic, ISR); + pending = status & eic_readl(eic, IMR); while (pending) { i = fls(pending) - 1; pending &= ~(1 << i); - ext_irq = i + sm->eim_first_irq; + ext_irq = i + eic->first_irq; ext_desc = irq_desc + ext_irq; if (ext_desc->status & IRQ_LEVEL) handle_level_irq(ext_irq, ext_desc); @@ -136,51 +174,85 @@ static void demux_eim_irq(unsigned int irq, struct irq_desc *desc) } } -static int __init eim_init(void) +static int __init eic_probe(struct platform_device *pdev) { - struct at32_sm *sm = &system_manager; + struct eic *eic; + struct resource *regs; unsigned int i; unsigned int nr_irqs; unsigned int int_irq; + int ret; u32 pattern; - /* - * The EIM is really the same module as SM, so register - * mapping, etc. has been taken care of already. - */ + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + int_irq = platform_get_irq(pdev, 0); + if (!regs || !int_irq) { + dev_dbg(&pdev->dev, "missing regs and/or irq resource\n"); + return -ENXIO; + } + + ret = -ENOMEM; + eic = kzalloc(sizeof(struct eic), GFP_KERNEL); + if (!eic) { + dev_dbg(&pdev->dev, "no memory for eic structure\n"); + goto err_kzalloc; + } + + eic->first_irq = EIM_IRQ_BASE + 32 * pdev->id; + eic->regs = ioremap(regs->start, regs->end - regs->start + 1); + if (!eic->regs) { + dev_dbg(&pdev->dev, "failed to map regs\n"); + goto err_ioremap; + } /* * Find out how many interrupt lines that are actually * implemented in hardware. */ - sm_writel(sm, EIM_IDR, ~0UL); - sm_writel(sm, EIM_MODE, ~0UL); - pattern = sm_readl(sm, EIM_MODE); + eic_writel(eic, IDR, ~0UL); + eic_writel(eic, MODE, ~0UL); + pattern = eic_readl(eic, MODE); nr_irqs = fls(pattern); /* Trigger on falling edge unless overridden by driver */ - sm_writel(sm, EIM_MODE, 0UL); - sm_writel(sm, EIM_EDGE, 0UL); + eic_writel(eic, MODE, 0UL); + eic_writel(eic, EDGE, 0UL); - sm->eim_chip = &eim_chip; + eic->chip = &eic_chip; for (i = 0; i < nr_irqs; i++) { /* NOTE the handler we set here is ignored by the demux */ - set_irq_chip_and_handler(sm->eim_first_irq + i, &eim_chip, + set_irq_chip_and_handler(eic->first_irq + i, &eic_chip, handle_level_irq); - set_irq_chip_data(sm->eim_first_irq + i, sm); + set_irq_chip_data(eic->first_irq + i, eic); } - int_irq = platform_get_irq_byname(sm->pdev, "eim"); - - set_irq_chained_handler(int_irq, demux_eim_irq); - set_irq_data(int_irq, sm); + set_irq_chained_handler(int_irq, demux_eic_irq); + set_irq_data(int_irq, eic); - printk("EIM: External Interrupt Module at 0x%p, IRQ %u\n", - sm->regs, int_irq); - printk("EIM: Handling %u external IRQs, starting with IRQ %u\n", - nr_irqs, sm->eim_first_irq); + dev_info(&pdev->dev, + "External Interrupt Controller at 0x%p, IRQ %u\n", + eic->regs, int_irq); + dev_info(&pdev->dev, + "Handling %u external IRQs, starting with IRQ %u\n", + nr_irqs, eic->first_irq); return 0; + +err_ioremap: + kfree(eic); +err_kzalloc: + return ret; +} + +static struct platform_driver eic_driver = { + .driver = { + .name = "at32_eic", + }, +}; + +static int __init eic_init(void) +{ + return platform_driver_probe(&eic_driver, eic_probe); } -arch_initcall(eim_init); +arch_initcall(eic_init); diff --git a/arch/avr32/mach-at32ap/pm.h b/arch/avr32/mach-at32ap/pm.h new file mode 100644 index 000000000000..a1f8aced0a8c --- /dev/null +++ b/arch/avr32/mach-at32ap/pm.h @@ -0,0 +1,112 @@ +/* + * Register definitions for the Power Manager (PM) + */ +#ifndef __ARCH_AVR32_MACH_AT32AP_PM_H__ +#define __ARCH_AVR32_MACH_AT32AP_PM_H__ + +/* PM register offsets */ +#define PM_MCCTRL 0x0000 +#define PM_CKSEL 0x0004 +#define PM_CPU_MASK 0x0008 +#define PM_HSB_MASK 0x000c +#define PM_PBA_MASK 0x0010 +#define PM_PBB_MASK 0x0014 +#define PM_PLL0 0x0020 +#define PM_PLL1 0x0024 +#define PM_IER 0x0040 +#define PM_IDR 0x0044 +#define PM_IMR 0x0048 +#define PM_ISR 0x004c +#define PM_ICR 0x0050 +#define PM_GCCTRL(x) (0x0060 + 4 * (x)) +#define PM_RCAUSE 0x00c0 + +/* Bitfields in CKSEL */ +#define PM_CPUSEL_OFFSET 0 +#define PM_CPUSEL_SIZE 3 +#define PM_CPUDIV_OFFSET 7 +#define PM_CPUDIV_SIZE 1 +#define PM_HSBSEL_OFFSET 8 +#define PM_HSBSEL_SIZE 3 +#define PM_HSBDIV_OFFSET 15 +#define PM_HSBDIV_SIZE 1 +#define PM_PBASEL_OFFSET 16 +#define PM_PBASEL_SIZE 3 +#define PM_PBADIV_OFFSET 23 +#define PM_PBADIV_SIZE 1 +#define PM_PBBSEL_OFFSET 24 +#define PM_PBBSEL_SIZE 3 +#define PM_PBBDIV_OFFSET 31 +#define PM_PBBDIV_SIZE 1 + +/* Bitfields in PLL0 */ +#define PM_PLLEN_OFFSET 0 +#define PM_PLLEN_SIZE 1 +#define PM_PLLOSC_OFFSET 1 +#define PM_PLLOSC_SIZE 1 +#define PM_PLLOPT_OFFSET 2 +#define PM_PLLOPT_SIZE 3 +#define PM_PLLDIV_OFFSET 8 +#define PM_PLLDIV_SIZE 8 +#define PM_PLLMUL_OFFSET 16 +#define PM_PLLMUL_SIZE 8 +#define PM_PLLCOUNT_OFFSET 24 +#define PM_PLLCOUNT_SIZE 6 +#define PM_PLLTEST_OFFSET 31 +#define PM_PLLTEST_SIZE 1 + +/* Bitfields in ICR */ +#define PM_LOCK0_OFFSET 0 +#define PM_LOCK0_SIZE 1 +#define PM_LOCK1_OFFSET 1 +#define PM_LOCK1_SIZE 1 +#define PM_WAKE_OFFSET 2 +#define PM_WAKE_SIZE 1 +#define PM_CKRDY_OFFSET 5 +#define PM_CKRDY_SIZE 1 +#define PM_MSKRDY_OFFSET 6 +#define PM_MSKRDY_SIZE 1 + +/* Bitfields in GCCTRL0 */ +#define PM_OSCSEL_OFFSET 0 +#define PM_OSCSEL_SIZE 1 +#define PM_PLLSEL_OFFSET 1 +#define PM_PLLSEL_SIZE 1 +#define PM_CEN_OFFSET 2 +#define PM_CEN_SIZE 1 +#define PM_DIVEN_OFFSET 4 +#define PM_DIVEN_SIZE 1 +#define PM_DIV_OFFSET 8 +#define PM_DIV_SIZE 8 + +/* Bitfields in RCAUSE */ +#define PM_POR_OFFSET 0 +#define PM_POR_SIZE 1 +#define PM_EXT_OFFSET 2 +#define PM_EXT_SIZE 1 +#define PM_WDT_OFFSET 3 +#define PM_WDT_SIZE 1 +#define PM_NTAE_OFFSET 4 +#define PM_NTAE_SIZE 1 + +/* Bit manipulation macros */ +#define PM_BIT(name) \ + (1 << PM_##name##_OFFSET) +#define PM_BF(name,value) \ + (((value) & ((1 << PM_##name##_SIZE) - 1)) \ + << PM_##name##_OFFSET) +#define PM_BFEXT(name,value) \ + (((value) >> PM_##name##_OFFSET) \ + & ((1 << PM_##name##_SIZE) - 1)) +#define PM_BFINS(name,value,old)\ + (((old) & ~(((1 << PM_##name##_SIZE) - 1) \ + << PM_##name##_OFFSET)) \ + | PM_BF(name,value)) + +/* Register access macros */ +#define pm_readl(reg) \ + __raw_readl((void __iomem *)AT32_PM_BASE + PM_##reg) +#define pm_writel(reg,value) \ + __raw_writel((value), (void __iomem *)AT32_PM_BASE + PM_##reg) + +#endif /* __ARCH_AVR32_MACH_AT32AP_PM_H__ */ diff --git a/arch/avr32/mach-at32ap/sm.h b/arch/avr32/mach-at32ap/sm.h deleted file mode 100644 index cad02b512bcb..000000000000 --- a/arch/avr32/mach-at32ap/sm.h +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Register definitions for SM - * - * System Manager - */ -#ifndef __ASM_AVR32_SM_H__ -#define __ASM_AVR32_SM_H__ - -/* SM register offsets */ -#define SM_PM_MCCTRL 0x0000 -#define SM_PM_CKSEL 0x0004 -#define SM_PM_CPU_MASK 0x0008 -#define SM_PM_HSB_MASK 0x000c -#define SM_PM_PBA_MASK 0x0010 -#define SM_PM_PBB_MASK 0x0014 -#define SM_PM_PLL0 0x0020 -#define SM_PM_PLL1 0x0024 -#define SM_PM_VCTRL 0x0030 -#define SM_PM_VMREF 0x0034 -#define SM_PM_VMV 0x0038 -#define SM_PM_IER 0x0040 -#define SM_PM_IDR 0x0044 -#define SM_PM_IMR 0x0048 -#define SM_PM_ISR 0x004c -#define SM_PM_ICR 0x0050 -#define SM_PM_GCCTRL 0x0060 -#define SM_RTC_CTRL 0x0080 -#define SM_RTC_VAL 0x0084 -#define SM_RTC_TOP 0x0088 -#define SM_RTC_IER 0x0090 -#define SM_RTC_IDR 0x0094 -#define SM_RTC_IMR 0x0098 -#define SM_RTC_ISR 0x009c -#define SM_RTC_ICR 0x00a0 -#define SM_WDT_CTRL 0x00b0 -#define SM_WDT_CLR 0x00b4 -#define SM_WDT_EXT 0x00b8 -#define SM_RC_RCAUSE 0x00c0 -#define SM_EIM_IER 0x0100 -#define SM_EIM_IDR 0x0104 -#define SM_EIM_IMR 0x0108 -#define SM_EIM_ISR 0x010c -#define SM_EIM_ICR 0x0110 -#define SM_EIM_MODE 0x0114 -#define SM_EIM_EDGE 0x0118 -#define SM_EIM_LEVEL 0x011c -#define SM_EIM_TEST 0x0120 -#define SM_EIM_NMIC 0x0124 - -/* Bitfields in PM_MCCTRL */ - -/* Bitfields in PM_CKSEL */ -#define SM_CPUSEL_OFFSET 0 -#define SM_CPUSEL_SIZE 3 -#define SM_CPUDIV_OFFSET 7 -#define SM_CPUDIV_SIZE 1 -#define SM_HSBSEL_OFFSET 8 -#define SM_HSBSEL_SIZE 3 -#define SM_HSBDIV_OFFSET 15 -#define SM_HSBDIV_SIZE 1 -#define SM_PBASEL_OFFSET 16 -#define SM_PBASEL_SIZE 3 -#define SM_PBADIV_OFFSET 23 -#define SM_PBADIV_SIZE 1 -#define SM_PBBSEL_OFFSET 24 -#define SM_PBBSEL_SIZE 3 -#define SM_PBBDIV_OFFSET 31 -#define SM_PBBDIV_SIZE 1 - -/* Bitfields in PM_CPU_MASK */ - -/* Bitfields in PM_HSB_MASK */ - -/* Bitfields in PM_PBA_MASK */ - -/* Bitfields in PM_PBB_MASK */ - -/* Bitfields in PM_PLL0 */ -#define SM_PLLEN_OFFSET 0 -#define SM_PLLEN_SIZE 1 -#define SM_PLLOSC_OFFSET 1 -#define SM_PLLOSC_SIZE 1 -#define SM_PLLOPT_OFFSET 2 -#define SM_PLLOPT_SIZE 3 -#define SM_PLLDIV_OFFSET 8 -#define SM_PLLDIV_SIZE 8 -#define SM_PLLMUL_OFFSET 16 -#define SM_PLLMUL_SIZE 8 -#define SM_PLLCOUNT_OFFSET 24 -#define SM_PLLCOUNT_SIZE 6 -#define SM_PLLTEST_OFFSET 31 -#define SM_PLLTEST_SIZE 1 - -/* Bitfields in PM_PLL1 */ - -/* Bitfields in PM_VCTRL */ -#define SM_VAUTO_OFFSET 0 -#define SM_VAUTO_SIZE 1 -#define SM_PM_VCTRL_VAL_OFFSET 8 -#define SM_PM_VCTRL_VAL_SIZE 7 - -/* Bitfields in PM_VMREF */ -#define SM_REFSEL_OFFSET 0 -#define SM_REFSEL_SIZE 4 - -/* Bitfields in PM_VMV */ -#define SM_PM_VMV_VAL_OFFSET 0 -#define SM_PM_VMV_VAL_SIZE 8 - -/* Bitfields in PM_IER */ - -/* Bitfields in PM_IDR */ - -/* Bitfields in PM_IMR */ - -/* Bitfields in PM_ISR */ - -/* Bitfields in PM_ICR */ -#define SM_LOCK0_OFFSET 0 -#define SM_LOCK0_SIZE 1 -#define SM_LOCK1_OFFSET 1 -#define SM_LOCK1_SIZE 1 -#define SM_WAKE_OFFSET 2 -#define SM_WAKE_SIZE 1 -#define SM_VOK_OFFSET 3 -#define SM_VOK_SIZE 1 -#define SM_VMRDY_OFFSET 4 -#define SM_VMRDY_SIZE 1 -#define SM_CKRDY_OFFSET 5 -#define SM_CKRDY_SIZE 1 - -/* Bitfields in PM_GCCTRL */ -#define SM_OSCSEL_OFFSET 0 -#define SM_OSCSEL_SIZE 1 -#define SM_PLLSEL_OFFSET 1 -#define SM_PLLSEL_SIZE 1 -#define SM_CEN_OFFSET 2 -#define SM_CEN_SIZE 1 -#define SM_CPC_OFFSET 3 -#define SM_CPC_SIZE 1 -#define SM_DIVEN_OFFSET 4 -#define SM_DIVEN_SIZE 1 -#define SM_DIV_OFFSET 8 -#define SM_DIV_SIZE 8 - -/* Bitfields in RTC_CTRL */ -#define SM_PCLR_OFFSET 1 -#define SM_PCLR_SIZE 1 -#define SM_TOPEN_OFFSET 2 -#define SM_TOPEN_SIZE 1 -#define SM_CLKEN_OFFSET 3 -#define SM_CLKEN_SIZE 1 -#define SM_PSEL_OFFSET 8 -#define SM_PSEL_SIZE 16 - -/* Bitfields in RTC_VAL */ -#define SM_RTC_VAL_VAL_OFFSET 0 -#define SM_RTC_VAL_VAL_SIZE 31 - -/* Bitfields in RTC_TOP */ -#define SM_RTC_TOP_VAL_OFFSET 0 -#define SM_RTC_TOP_VAL_SIZE 32 - -/* Bitfields in RTC_IER */ - -/* Bitfields in RTC_IDR */ - -/* Bitfields in RTC_IMR */ - -/* Bitfields in RTC_ISR */ - -/* Bitfields in RTC_ICR */ -#define SM_TOPI_OFFSET 0 -#define SM_TOPI_SIZE 1 - -/* Bitfields in WDT_CTRL */ -#define SM_KEY_OFFSET 24 -#define SM_KEY_SIZE 8 - -/* Bitfields in WDT_CLR */ - -/* Bitfields in WDT_EXT */ - -/* Bitfields in RC_RCAUSE */ -#define SM_POR_OFFSET 0 -#define SM_POR_SIZE 1 -#define SM_BOD_OFFSET 1 -#define SM_BOD_SIZE 1 -#define SM_EXT_OFFSET 2 -#define SM_EXT_SIZE 1 -#define SM_WDT_OFFSET 3 -#define SM_WDT_SIZE 1 -#define SM_NTAE_OFFSET 4 -#define SM_NTAE_SIZE 1 -#define SM_SERP_OFFSET 5 -#define SM_SERP_SIZE 1 - -/* Bitfields in EIM_IER */ - -/* Bitfields in EIM_IDR */ - -/* Bitfields in EIM_IMR */ - -/* Bitfields in EIM_ISR */ - -/* Bitfields in EIM_ICR */ - -/* Bitfields in EIM_MODE */ - -/* Bitfields in EIM_EDGE */ -#define SM_INT0_OFFSET 0 -#define SM_INT0_SIZE 1 -#define SM_INT1_OFFSET 1 -#define SM_INT1_SIZE 1 -#define SM_INT2_OFFSET 2 -#define SM_INT2_SIZE 1 -#define SM_INT3_OFFSET 3 -#define SM_INT3_SIZE 1 - -/* Bitfields in EIM_LEVEL */ - -/* Bitfields in EIM_TEST */ -#define SM_TESTEN_OFFSET 31 -#define SM_TESTEN_SIZE 1 - -/* Bitfields in EIM_NMIC */ -#define SM_EN_OFFSET 0 -#define SM_EN_SIZE 1 - -/* Bit manipulation macros */ -#define SM_BIT(name) (1 << SM_##name##_OFFSET) -#define SM_BF(name,value) (((value) & ((1 << SM_##name##_SIZE) - 1)) << SM_##name##_OFFSET) -#define SM_BFEXT(name,value) (((value) >> SM_##name##_OFFSET) & ((1 << SM_##name##_SIZE) - 1)) -#define SM_BFINS(name,value,old) (((old) & ~(((1 << SM_##name##_SIZE) - 1) << SM_##name##_OFFSET)) | SM_BF(name,value)) - -/* Register access macros */ -#define sm_readl(port,reg) \ - __raw_readl((port)->regs + SM_##reg) -#define sm_writel(port,reg,value) \ - __raw_writel((value), (port)->regs + SM_##reg) - -#endif /* __ASM_AVR32_SM_H__ */ diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c index 4b2495285d94..ae2d2c593b2b 100644 --- a/arch/avr32/mm/fault.c +++ b/arch/avr32/mm/fault.c @@ -64,6 +64,7 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs) int writeaccess; long signr; int code; + int fault; if (notify_page_fault(regs, ecr)) return; @@ -132,20 +133,18 @@ good_area: * fault. */ survive: - switch (handle_mm_fault(mm, vma, address, writeaccess)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, writeaccess); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/blackfin/mm/blackfin_sram.c b/arch/blackfin/mm/blackfin_sram.c index 16c6169ed01b..b99ea883cd22 100644 --- a/arch/blackfin/mm/blackfin_sram.c +++ b/arch/blackfin/mm/blackfin_sram.c @@ -521,10 +521,9 @@ void *sram_alloc_with_lsl(size_t size, unsigned long flags) struct sram_list_struct *lsl = NULL; struct mm_struct *mm = current->mm; - lsl = kmalloc(sizeof(struct sram_list_struct), GFP_KERNEL); + lsl = kzalloc(sizeof(struct sram_list_struct), GFP_KERNEL); if (!lsl) return NULL; - memset(lsl, 0, sizeof(*lsl)); if (flags & L1_INST_SRAM) addr = l1_inst_sram_alloc(size); diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c index d47cfbf98d6e..1de0026bb94e 100644 --- a/arch/cris/arch-v10/drivers/pcf8563.c +++ b/arch/cris/arch-v10/drivers/pcf8563.c @@ -180,9 +180,7 @@ err: void __exit pcf8563_exit(void) { - if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) { - printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME); - } + unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME); } /* diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c index fd2129a04586..f4f9db698b44 100644 --- a/arch/cris/arch-v10/kernel/ptrace.c +++ b/arch/cris/arch-v10/kernel/ptrace.c @@ -83,19 +83,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* Read word at location address. */ case PTRACE_PEEKTEXT: - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - - if (copied != sizeof(tmp)) - break; - - ret = put_user(tmp,datap); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* Read the word at location address in the USER area. */ case PTRACE_PEEKUSR: { @@ -113,12 +103,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* Write the word at location address. */ case PTRACE_POKETEXT: case PTRACE_POKEDATA: - ret = 0; - - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; /* Write the word at location address in the USER area. */ diff --git a/arch/cris/arch-v32/drivers/pcf8563.c b/arch/cris/arch-v32/drivers/pcf8563.c index fa8d50007e4c..da479a14f836 100644 --- a/arch/cris/arch-v32/drivers/pcf8563.c +++ b/arch/cris/arch-v32/drivers/pcf8563.c @@ -193,9 +193,7 @@ err: void __exit pcf8563_exit(void) { - if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) { - printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME); - } + unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME); } /* diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c index 832fc63504d4..66f9500fbc02 100644 --- a/arch/cris/arch-v32/drivers/pci/dma.c +++ b/arch/cris/arch-v32/drivers/pci/dma.c @@ -91,14 +91,12 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, if (!mem_base) goto out; - dev->dma_mem = kmalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL); + dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL); if (!dev->dma_mem) goto out; - memset(dev->dma_mem, 0, sizeof(struct dma_coherent_mem)); - dev->dma_mem->bitmap = kmalloc(bitmap_size, GFP_KERNEL); + dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL); if (!dev->dma_mem->bitmap) goto free1_out; - memset(dev->dma_mem->bitmap, 0, bitmap_size); dev->dma_mem->virt_base = mem_base; dev->dma_mem->device_base = device_addr; diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c index d4d57b741334..38ece0cd47cb 100644 --- a/arch/cris/arch-v32/kernel/ptrace.c +++ b/arch/cris/arch-v32/kernel/ptrace.c @@ -146,12 +146,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* Write the word at location address. */ case PTRACE_POKETEXT: case PTRACE_POKEDATA: - ret = 0; - - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; /* Write the word at location address in the USER area. */ diff --git a/arch/cris/arch-v32/vmlinux.lds.S b/arch/cris/arch-v32/vmlinux.lds.S index dfa25e1542b9..651a77f2ccc4 100644 --- a/arch/cris/arch-v32/vmlinux.lds.S +++ b/arch/cris/arch-v32/vmlinux.lds.S @@ -91,10 +91,7 @@ SECTIONS } SECURITY_INIT - . = ALIGN (8192); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(8192) #ifdef CONFIG_BLK_DEV_INITRD .init.ramfs : { diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c index c73e91f1299a..8672ab7d7978 100644 --- a/arch/cris/mm/fault.c +++ b/arch/cris/mm/fault.c @@ -179,6 +179,7 @@ do_page_fault(unsigned long address, struct pt_regs *regs, struct mm_struct *mm; struct vm_area_struct * vma; siginfo_t info; + int fault; D(printk("Page fault for %lX on %X at %lX, prot %d write %d\n", address, smp_processor_id(), instruction_pointer(regs), @@ -283,18 +284,18 @@ do_page_fault(unsigned long address, struct pt_regs *regs, * the fault. */ - switch (handle_mm_fault(mm, vma, address, writeaccess & 1)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - default: - goto out_of_memory; + fault = handle_mm_fault(mm, vma, address, writeaccess & 1); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/frv/Makefile b/arch/frv/Makefile index 038e3a8457e0..9bf7345c5cc9 100644 --- a/arch/frv/Makefile +++ b/arch/frv/Makefile @@ -88,7 +88,7 @@ ASFLAGS += -mno-fdpic # make sure the .S files get compiled with debug info # and disable optimisations that are unhelpful whilst debugging ifdef CONFIG_DEBUG_INFO -CFLAGS += -O1 +#CFLAGS += -O1 AFLAGS += -Wa,--gdwarf2 ASFLAGS += -Wa,--gdwarf2 endif diff --git a/arch/frv/kernel/ptrace.c b/arch/frv/kernel/ptrace.c index ce88fb95ee59..709e9bdc6126 100644 --- a/arch/frv/kernel/ptrace.c +++ b/arch/frv/kernel/ptrace.c @@ -112,20 +112,12 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - int copied; - + case PTRACE_PEEKDATA: ret = -EIO; if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0) break; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - if (copied != sizeof(tmp)) - break; - - ret = put_user(tmp,(unsigned long *) data); + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -176,9 +168,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = -EIO; if (is_user_addr_valid(child, addr, sizeof(tmp)) < 0) break; - if (access_process_vm(child, addr, &data, sizeof(data), 1) != sizeof(data)) - break; - ret = 0; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c index c1c32e4c863d..a74c08786b21 100644 --- a/arch/frv/kernel/setup.c +++ b/arch/frv/kernel/setup.c @@ -29,6 +29,7 @@ #include <linux/serial.h> #include <linux/serial_core.h> #include <linux/serial_reg.h> +#include <linux/serial_8250.h> #include <asm/setup.h> #include <asm/irq.h> diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S index 481dc1374640..3b71e0c86399 100644 --- a/arch/frv/kernel/vmlinux.lds.S +++ b/arch/frv/kernel/vmlinux.lds.S @@ -57,10 +57,7 @@ SECTIONS __alt_instructions_end = .; .altinstr_replacement : { *(.altinstr_replacement) } - . = ALIGN(4096); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(4096) #ifdef CONFIG_BLK_DEV_INITRD . = ALIGN(4096); diff --git a/arch/frv/mm/fault.c b/arch/frv/mm/fault.c index 3f12296c3688..6798fa0257b1 100644 --- a/arch/frv/mm/fault.c +++ b/arch/frv/mm/fault.c @@ -40,6 +40,7 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear pud_t *pue; pte_t *pte; int write; + int fault; #if 0 const char *atxc[16] = { @@ -162,18 +163,18 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear * make sure we exit gracefully rather than endlessly redo * the fault. */ - switch (handle_mm_fault(mm, vma, ear0, write)) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - default: - goto out_of_memory; + fault = handle_mm_fault(mm, vma, ear0, write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c index 8a7a991b8f76..d32bbf02fc48 100644 --- a/arch/h8300/kernel/ptrace.c +++ b/arch/h8300/kernel/ptrace.c @@ -111,10 +111,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 8531a540ca8c..7a11b905ef49 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -222,6 +222,8 @@ config PARAVIRT However, when run without a hypervisor the kernel is theoretically slower. If in doubt, say N. +source "arch/i386/xen/Kconfig" + config VMI bool "VMI Paravirt-ops support" depends on PARAVIRT @@ -1222,8 +1224,8 @@ if INSTRUMENTATION source "arch/i386/oprofile/Kconfig" config KPROBES - bool "Kprobes (EXPERIMENTAL)" - depends on KALLSYMS && EXPERIMENTAL && MODULES + bool "Kprobes" + depends on KALLSYMS && MODULES help Kprobes allows you to trap at almost any kernel address and execute a callback function. register_kprobe() establishes diff --git a/arch/i386/Makefile b/arch/i386/Makefile index bd28f9f9b4b7..01f0ff0daaf4 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile @@ -93,6 +93,9 @@ mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-i386/mach-es7000 mcore-$(CONFIG_X86_ES7000) := mach-default core-$(CONFIG_X86_ES7000) := arch/i386/mach-es7000/ +# Xen paravirtualization support +core-$(CONFIG_XEN) += arch/i386/xen/ + # default subarch .h files mflags-y += -Iinclude/asm-i386/mach-default @@ -108,6 +111,7 @@ drivers-$(CONFIG_PCI) += arch/i386/pci/ # must be linked after kernel/ drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/ drivers-$(CONFIG_PM) += arch/i386/power/ +drivers-$(CONFIG_FB) += arch/i386/video/ CFLAGS += $(mflags-y) AFLAGS += $(mflags-y) diff --git a/arch/i386/boot/Makefile b/arch/i386/boot/Makefile index 08678a0a3d19..93386a4e40b4 100644 --- a/arch/i386/boot/Makefile +++ b/arch/i386/boot/Makefile @@ -39,7 +39,7 @@ setup-y += printf.o string.o tty.o video.o version.o voyager.o setup-y += video-vga.o setup-y += video-vesa.o setup-y += video-bios.o - +targets += $(setup-y) hostprogs-y := tools/build HOSTCFLAGS_build.o := $(LINUXINCLUDE) diff --git a/arch/i386/boot/boot.h b/arch/i386/boot/boot.h index 0329c4fe4f88..dec70c9b6050 100644 --- a/arch/i386/boot/boot.h +++ b/arch/i386/boot/boot.h @@ -56,7 +56,7 @@ static inline u16 inw(u16 port) static inline void outl(u32 v, u16 port) { - asm volatile("outl %0,%1" : : "a" (v), "dn" (port)); + asm volatile("outl %0,%1" : : "a" (v), "dN" (port)); } static inline u32 inl(u32 port) { diff --git a/arch/i386/boot/compressed/relocs.c b/arch/i386/boot/compressed/relocs.c index ce4fda261aaf..b0e21c3cee5c 100644 --- a/arch/i386/boot/compressed/relocs.c +++ b/arch/i386/boot/compressed/relocs.c @@ -31,6 +31,8 @@ static const char* safe_abs_relocs[] = { "__kernel_rt_sigreturn", "__kernel_sigreturn", "SYSENTER_RETURN", + "xen_irq_disable_direct_reloc", + "xen_save_fl_direct_reloc", }; static int is_safe_abs_reloc(const char* sym_name) diff --git a/arch/i386/boot/cpucheck.c b/arch/i386/boot/cpucheck.c index 8b0f4473b083..991e8ceae1de 100644 --- a/arch/i386/boot/cpucheck.c +++ b/arch/i386/boot/cpucheck.c @@ -115,8 +115,8 @@ static int has_eflag(u32 mask) "pushfl ; " "popl %1 ; " "popfl" - : "=r" (f0), "=r" (f1) - : "g" (mask)); + : "=&r" (f0), "=&r" (f1) + : "ri" (mask)); return !!((f0^f1) & mask); } diff --git a/arch/i386/boot/mca.c b/arch/i386/boot/mca.c index 9b68bd1aef19..68222f2d4b67 100644 --- a/arch/i386/boot/mca.c +++ b/arch/i386/boot/mca.c @@ -26,7 +26,7 @@ int query_mca(void) "setc %0 ; " "movw %%es, %1 ; " "popw %%es" - : "=acdSDm" (err), "=acdSDm" (es), "=b" (bx) + : "=acd" (err), "=acdSD" (es), "=b" (bx) : "a" (0xc000)); if (err) diff --git a/arch/i386/boot/pm.c b/arch/i386/boot/pm.c index 3fa53e15ed77..1df025c73261 100644 --- a/arch/i386/boot/pm.c +++ b/arch/i386/boot/pm.c @@ -65,7 +65,7 @@ static void move_kernel_around(void) "popw %%ds ; " "popw %%es" : "+c" (dwords) - : "rm" (dst_seg), "rm" (src_seg) + : "r" (dst_seg), "r" (src_seg) : "esi", "edi"); syssize -= paras; diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c index 886f47d8a488..b4248740ff0d 100644 --- a/arch/i386/boot/tools/build.c +++ b/arch/i386/boot/tools/build.c @@ -5,7 +5,7 @@ */ /* - * This file builds a disk-image from three different files: + * This file builds a disk-image from two different files: * * - setup: 8086 machine code, sets up system parm * - system: 80386 code for actual system diff --git a/arch/i386/boot/tty.c b/arch/i386/boot/tty.c index a8db78736b02..9c668aad3515 100644 --- a/arch/i386/boot/tty.c +++ b/arch/i386/boot/tty.c @@ -31,7 +31,7 @@ void __attribute__((section(".inittext"))) putchar(int ch) /* int $0x10 is known to have bugs involving touching registers it shouldn't. Be extra conservative... */ - asm volatile("pushal; int $0x10; popal" + asm volatile("pushal; pushw %%ds; int $0x10; popw %%ds; popal" : : "b" (0x0007), "c" (0x0001), "a" (0x0e00|ch)); } diff --git a/arch/i386/boot/video.c b/arch/i386/boot/video.c index 3bb3573cd6a1..958130ef0042 100644 --- a/arch/i386/boot/video.c +++ b/arch/i386/boot/video.c @@ -195,7 +195,7 @@ static void vga_recalc_vertical(void) { unsigned int font_size, rows; u16 crtc; - u8 ov; + u8 pt, ov; set_fs(0); font_size = rdfs8(0x485); /* BIOS: font size (pixels) */ @@ -206,7 +206,12 @@ static void vga_recalc_vertical(void) crtc = vga_crtc(); + pt = in_idx(crtc, 0x11); + pt &= ~0x80; /* Unlock CR0-7 */ + out_idx(pt, crtc, 0x11); + out_idx((u8)rows, crtc, 0x12); /* Lower height register */ + ov = in_idx(crtc, 0x07); /* Overflow register */ ov &= 0xbd; ov |= (rows >> (8-1)) & 0x02; @@ -411,7 +416,7 @@ static void restore_screen(void) "1: rep;stosl ; " "popw %%es" : "+D" (dst), "+c" (npad) - : "bdSm" (video_segment), + : "bdS" (video_segment), "a" (0x07200720)); } diff --git a/arch/i386/boot/video.h b/arch/i386/boot/video.h index 29eca1710b2c..b92447d51213 100644 --- a/arch/i386/boot/video.h +++ b/arch/i386/boot/video.h @@ -117,8 +117,15 @@ extern int graphic_mode; /* Graphics mode with linear frame buffer */ * int $0x10 is notorious for touching registers it shouldn't. * gcc doesn't like %ebp being clobbered, so define it as a push/pop * sequence here. + * + * A number of systems, including the original PC can clobber %bp in + * certain circumstances, like when scrolling. There exists at least + * one Trident video card which could clobber DS under a set of + * circumstances that we are unlikely to encounter (scrolling when + * using an extended graphics mode of more than 800x600 pixels), but + * it's cheap insurance to deal with that here. */ -#define INT10 "pushl %%ebp; int $0x10; popl %%ebp" +#define INT10 "pushl %%ebp; pushw %%ds; int $0x10; popw %%ds; popl %%ebp" /* Accessing VGA indexed registers */ static inline u8 in_idx(u16 port, u8 index) diff --git a/arch/i386/boot/voyager.c b/arch/i386/boot/voyager.c index 9221614d0db8..61c8fe0453be 100644 --- a/arch/i386/boot/voyager.c +++ b/arch/i386/boot/voyager.c @@ -32,7 +32,7 @@ int query_voyager(void) "setc %0 ; " "movw %%es, %1 ; " "popw %%es" - : "=qm" (err), "=rm" (es), "=D" (di) + : "=q" (err), "=r" (es), "=D" (di) : "a" (0xffc0)); if (err) diff --git a/arch/i386/kernel/acpi/sleep.c b/arch/i386/kernel/acpi/sleep.c index 4ee83577bf61..c42b5ab49deb 100644 --- a/arch/i386/kernel/acpi/sleep.c +++ b/arch/i386/kernel/acpi/sleep.c @@ -14,7 +14,7 @@ /* address in low memory of the wakeup routine. */ unsigned long acpi_wakeup_address = 0; -unsigned long acpi_video_flags; +unsigned long acpi_realmode_flags; extern char wakeup_start, wakeup_end; extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long)); @@ -68,9 +68,11 @@ static int __init acpi_sleep_setup(char *str) { while ((str != NULL) && (*str != '\0')) { if (strncmp(str, "s3_bios", 7) == 0) - acpi_video_flags = 1; + acpi_realmode_flags |= 1; if (strncmp(str, "s3_mode", 7) == 0) - acpi_video_flags |= 2; + acpi_realmode_flags |= 2; + if (strncmp(str, "s3_beep", 7) == 0) + acpi_realmode_flags |= 4; str = strchr(str, ','); if (str != NULL) str += strspn(str, ", \t"); @@ -80,9 +82,11 @@ static int __init acpi_sleep_setup(char *str) __setup("acpi_sleep=", acpi_sleep_setup); +/* Ouch, we want to delete this. We already have better version in userspace, in + s2ram from suspend.sf.net project */ static __init int reset_videomode_after_s3(struct dmi_system_id *d) { - acpi_video_flags |= 2; + acpi_realmode_flags |= 2; return 0; } diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S index a2295a34b2c7..ed0a0f2c1597 100644 --- a/arch/i386/kernel/acpi/wakeup.S +++ b/arch/i386/kernel/acpi/wakeup.S @@ -13,6 +13,21 @@ # cs = 0x1234, eip = 0x05 # +#define BEEP \ + inb $97, %al; \ + outb %al, $0x80; \ + movb $3, %al; \ + outb %al, $97; \ + outb %al, $0x80; \ + movb $-74, %al; \ + outb %al, $67; \ + outb %al, $0x80; \ + movb $-119, %al; \ + outb %al, $66; \ + outb %al, $0x80; \ + movb $15, %al; \ + outb %al, $66; + ALIGN .align 4096 ENTRY(wakeup_start) @@ -31,6 +46,11 @@ wakeup_code: movw %cs, %ax movw %ax, %ds # Make ds:0 point to wakeup_start movw %ax, %ss + + testl $4, realmode_flags - wakeup_code + jz 1f + BEEP +1: mov $(wakeup_stack - wakeup_code), %sp # Private stack is needed for ASUS board movw $0x0e00 + 'S', %fs:(0x12) @@ -41,7 +61,7 @@ wakeup_code: cmpl $0x12345678, %eax jne bogus_real_magic - testl $1, video_flags - wakeup_code + testl $1, realmode_flags - wakeup_code jz 1f lcall $0xc000,$3 movw %cs, %ax @@ -49,7 +69,7 @@ wakeup_code: movw %ax, %ss 1: - testl $2, video_flags - wakeup_code + testl $2, realmode_flags - wakeup_code jz 1f mov video_mode - wakeup_code, %ax call mode_set @@ -88,7 +108,11 @@ wakeup_code: cmpl $0x12345678, %eax jne bogus_real_magic - ljmpl $__KERNEL_CS,$wakeup_pmode_return + testl $8, realmode_flags - wakeup_code + jz 1f + BEEP +1: + ljmpl $__KERNEL_CS, $wakeup_pmode_return real_save_gdt: .word 0 .long 0 @@ -97,7 +121,8 @@ real_save_cr3: .long 0 real_save_cr4: .long 0 real_magic: .long 0 video_mode: .long 0 -video_flags: .long 0 +realmode_flags: .long 0 +beep_flags: .long 0 real_efer_save_restore: .long 0 real_save_efer_edx: .long 0 real_save_efer_eax: .long 0 @@ -260,8 +285,8 @@ ENTRY(acpi_copy_wakeup_routine) movl saved_videomode, %edx movl %edx, video_mode - wakeup_start (%eax) - movl acpi_video_flags, %edx - movl %edx, video_flags - wakeup_start (%eax) + movl acpi_realmode_flags, %edx + movl %edx, realmode_flags - wakeup_start (%eax) movl $0x12345678, real_magic - wakeup_start (%eax) movl $0x12345678, saved_magic popl %ebx diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c index 4112afe712b9..47001d50a083 100644 --- a/arch/i386/kernel/apm.c +++ b/arch/i386/kernel/apm.c @@ -222,6 +222,7 @@ #include <linux/capability.h> #include <linux/device.h> #include <linux/kernel.h> +#include <linux/freezer.h> #include <linux/smp.h> #include <linux/dmi.h> #include <linux/suspend.h> @@ -2311,7 +2312,6 @@ static int __init apm_init(void) remove_proc_entry("apm", NULL); return err; } - kapmd_task->flags |= PF_NOFREEZE; wake_up_process(kapmd_task); if (num_online_cpus() > 1 && !smp ) { diff --git a/arch/i386/kernel/asm-offsets.c b/arch/i386/kernel/asm-offsets.c index 27a776c9044d..7288ac88d746 100644 --- a/arch/i386/kernel/asm-offsets.c +++ b/arch/i386/kernel/asm-offsets.c @@ -17,6 +17,13 @@ #include <asm/thread_info.h> #include <asm/elf.h> +#include <xen/interface/xen.h> + +#ifdef CONFIG_LGUEST_GUEST +#include <linux/lguest.h> +#include "../../../drivers/lguest/lg.h" +#endif + #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -59,6 +66,7 @@ void foo(void) OFFSET(TI_addr_limit, thread_info, addr_limit); OFFSET(TI_restart_block, thread_info, restart_block); OFFSET(TI_sysenter_return, thread_info, sysenter_return); + OFFSET(TI_cpu, thread_info, cpu); BLANK(); OFFSET(GDS_size, Xgt_desc_struct, size); @@ -115,4 +123,25 @@ void foo(void) OFFSET(PARAVIRT_iret, paravirt_ops, iret); OFFSET(PARAVIRT_read_cr0, paravirt_ops, read_cr0); #endif + +#ifdef CONFIG_XEN + BLANK(); + OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); + OFFSET(XEN_vcpu_info_pending, vcpu_info, evtchn_upcall_pending); +#endif + +#ifdef CONFIG_LGUEST_GUEST + BLANK(); + OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled); + OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc); + OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc); + OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3); + OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp); + OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc); + OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc); + OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt); + OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum); + OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode); + OFFSET(LGUEST_PAGES_regs, lguest_pages, regs); +#endif } diff --git a/arch/i386/kernel/cpu/mcheck/therm_throt.c b/arch/i386/kernel/cpu/mcheck/therm_throt.c index 7ba7c3abd3a4..1203dc5ab87a 100644 --- a/arch/i386/kernel/cpu/mcheck/therm_throt.c +++ b/arch/i386/kernel/cpu/mcheck/therm_throt.c @@ -134,19 +134,21 @@ static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb, int err; sys_dev = get_cpu_sysdev(cpu); - mutex_lock(&therm_cpu_lock); switch (action) { case CPU_ONLINE: case CPU_ONLINE_FROZEN: + mutex_lock(&therm_cpu_lock); err = thermal_throttle_add_dev(sys_dev); + mutex_unlock(&therm_cpu_lock); WARN_ON(err); break; case CPU_DEAD: case CPU_DEAD_FROZEN: + mutex_lock(&therm_cpu_lock); thermal_throttle_remove_dev(sys_dev); + mutex_unlock(&therm_cpu_lock); break; } - mutex_unlock(&therm_cpu_lock); return NOTIFY_OK; } diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c index a1808022ea19..2452c6fbe992 100644 --- a/arch/i386/kernel/efi.c +++ b/arch/i386/kernel/efi.c @@ -278,7 +278,7 @@ void efi_memmap_walk(efi_freemem_callback_t callback, void *arg) struct range { unsigned long start; unsigned long end; - } prev, curr; + } uninitialized_var(prev), curr; efi_memory_desc_t *md; unsigned long start, end; void *p; diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 3c3c220488c9..a714d6b43506 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -409,8 +409,6 @@ restore_nocheck_notrace: 1: INTERRUPT_RETURN .section .fixup,"ax" iret_exc: - TRACE_IRQS_ON - ENABLE_INTERRUPTS(CLBR_NONE) pushl $0 # no error code pushl $do_iret_error jmp error_code @@ -1023,6 +1021,91 @@ ENTRY(kernel_thread_helper) CFI_ENDPROC ENDPROC(kernel_thread_helper) +#ifdef CONFIG_XEN +ENTRY(xen_hypervisor_callback) + CFI_STARTPROC + pushl $0 + CFI_ADJUST_CFA_OFFSET 4 + SAVE_ALL + TRACE_IRQS_OFF + + /* Check to see if we got the event in the critical + region in xen_iret_direct, after we've reenabled + events and checked for pending events. This simulates + iret instruction's behaviour where it delivers a + pending interrupt when enabling interrupts. */ + movl PT_EIP(%esp),%eax + cmpl $xen_iret_start_crit,%eax + jb 1f + cmpl $xen_iret_end_crit,%eax + jae 1f + + call xen_iret_crit_fixup + +1: mov %esp, %eax + call xen_evtchn_do_upcall + jmp ret_from_intr + CFI_ENDPROC +ENDPROC(xen_hypervisor_callback) + +# Hypervisor uses this for application faults while it executes. +# We get here for two reasons: +# 1. Fault while reloading DS, ES, FS or GS +# 2. Fault while executing IRET +# Category 1 we fix up by reattempting the load, and zeroing the segment +# register if the load fails. +# Category 2 we fix up by jumping to do_iret_error. We cannot use the +# normal Linux return path in this case because if we use the IRET hypercall +# to pop the stack frame we end up in an infinite loop of failsafe callbacks. +# We distinguish between categories by maintaining a status value in EAX. +ENTRY(xen_failsafe_callback) + CFI_STARTPROC + pushl %eax + CFI_ADJUST_CFA_OFFSET 4 + movl $1,%eax +1: mov 4(%esp),%ds +2: mov 8(%esp),%es +3: mov 12(%esp),%fs +4: mov 16(%esp),%gs + testl %eax,%eax + popl %eax + CFI_ADJUST_CFA_OFFSET -4 + lea 16(%esp),%esp + CFI_ADJUST_CFA_OFFSET -16 + jz 5f + addl $16,%esp + jmp iret_exc # EAX != 0 => Category 2 (Bad IRET) +5: pushl $0 # EAX == 0 => Category 1 (Bad segment) + CFI_ADJUST_CFA_OFFSET 4 + SAVE_ALL + jmp ret_from_exception + CFI_ENDPROC + +.section .fixup,"ax" +6: xorl %eax,%eax + movl %eax,4(%esp) + jmp 1b +7: xorl %eax,%eax + movl %eax,8(%esp) + jmp 2b +8: xorl %eax,%eax + movl %eax,12(%esp) + jmp 3b +9: xorl %eax,%eax + movl %eax,16(%esp) + jmp 4b +.previous +.section __ex_table,"a" + .align 4 + .long 1b,6b + .long 2b,7b + .long 3b,8b + .long 4b,9b +.previous +ENDPROC(xen_failsafe_callback) + +#endif /* CONFIG_XEN */ + .section .rodata,"a" #include "syscall_table.S" diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S index 82714668d43b..7c52b222207e 100644 --- a/arch/i386/kernel/head.S +++ b/arch/i386/kernel/head.S @@ -510,7 +510,8 @@ ENTRY(_stext) /* * BSS section */ -.section ".bss.page_aligned","w" +.section ".bss.page_aligned","wa" + .align PAGE_SIZE_asm ENTRY(swapper_pg_dir) .fill 1024,4,0 ENTRY(swapper_pg_pmd) @@ -538,6 +539,8 @@ fault_msg: .ascii "Int %d: CR2 %p err %p EIP %p CS %p flags %p\n" .asciz "Stack: %p %p %p %p %p %p %p %p\n" +#include "../xen/xen-head.S" + /* * The IDT and GDT 'descriptors' are a strange 48-bit object * only used by the lidt and lgdt instructions. They are not diff --git a/arch/i386/kernel/init_task.c b/arch/i386/kernel/init_task.c index cff95d10a4d8..d26fc063a760 100644 --- a/arch/i386/kernel/init_task.c +++ b/arch/i386/kernel/init_task.c @@ -42,5 +42,5 @@ EXPORT_SYMBOL(init_task); * per-CPU TSS segments. Threads are completely 'soft' on Linux, * no more per-task TSS's. */ -DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_internodealigned_in_smp = INIT_TSS; +DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index 7f8b7af2b95f..21db8f56c9a1 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -667,6 +667,7 @@ static int balanced_irq(void *unused) set_pending_irq(i, cpumask_of_cpu(0)); } + set_freezable(); for ( ; ; ) { time_remaining = schedule_timeout_interruptible(time_remaining); try_to_freeze(); diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c index d2daf672f4a2..ba44d40b066d 100644 --- a/arch/i386/kernel/irq.c +++ b/arch/i386/kernel/irq.c @@ -21,7 +21,7 @@ #include <asm/apic.h> #include <asm/uaccess.h> -DEFINE_PER_CPU(irq_cpustat_t, irq_stat) ____cacheline_internodealigned_in_smp; +DEFINE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat); EXPORT_PER_CPU_SYMBOL(irq_stat); DEFINE_PER_CPU(struct pt_regs *, irq_regs); diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index fba121f7973f..03b7f5584d71 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -295,7 +295,7 @@ static unsigned int last_irq_sums [NR_CPUS], alert_counter [NR_CPUS]; -void touch_nmi_watchdog (void) +void touch_nmi_watchdog(void) { if (nmi_watchdog > 0) { unsigned cpu; @@ -304,8 +304,10 @@ void touch_nmi_watchdog (void) * Just reset the alert counters, (other CPUs might be * spinning on locks we hold): */ - for_each_present_cpu (cpu) - alert_counter[cpu] = 0; + for_each_present_cpu(cpu) { + if (alert_counter[cpu]) + alert_counter[cpu] = 0; + } } /* diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c index faab09abca5e..53f07a8275e3 100644 --- a/arch/i386/kernel/paravirt.c +++ b/arch/i386/kernel/paravirt.c @@ -228,6 +228,41 @@ static int __init print_banner(void) } core_initcall(print_banner); +static struct resource reserve_ioports = { + .start = 0, + .end = IO_SPACE_LIMIT, + .name = "paravirt-ioport", + .flags = IORESOURCE_IO | IORESOURCE_BUSY, +}; + +static struct resource reserve_iomem = { + .start = 0, + .end = -1, + .name = "paravirt-iomem", + .flags = IORESOURCE_MEM | IORESOURCE_BUSY, +}; + +/* + * Reserve the whole legacy IO space to prevent any legacy drivers + * from wasting time probing for their hardware. This is a fairly + * brute-force approach to disabling all non-virtual drivers. + * + * Note that this must be called very early to have any effect. + */ +int paravirt_disable_iospace(void) +{ + int ret; + + ret = request_resource(&ioport_resource, &reserve_ioports); + if (ret == 0) { + ret = request_resource(&iomem_resource, &reserve_iomem); + if (ret) + release_resource(&reserve_ioports); + } + + return ret; +} + struct paravirt_ops paravirt_ops = { .name = "bare hardware", .paravirt_enabled = 0, @@ -267,7 +302,7 @@ struct paravirt_ops paravirt_ops = { .write_msr = native_write_msr_safe, .read_tsc = native_read_tsc, .read_pmc = native_read_pmc, - .get_scheduled_cycles = native_read_tsc, + .sched_clock = native_sched_clock, .get_cpu_khz = native_calculate_cpu_khz, .load_tr_desc = native_load_tr_desc, .set_ldt = native_set_ldt, diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c index 0c0ceec5de00..0c8f00e69c4d 100644 --- a/arch/i386/kernel/ptrace.c +++ b/arch/i386/kernel/ptrace.c @@ -164,14 +164,22 @@ static unsigned long convert_eip_to_linear(struct task_struct *child, struct pt_ u32 *desc; unsigned long base; - down(&child->mm->context.sem); - desc = child->mm->context.ldt + (seg & ~7); - base = (desc[0] >> 16) | ((desc[1] & 0xff) << 16) | (desc[1] & 0xff000000); + seg &= ~7UL; - /* 16-bit code segment? */ - if (!((desc[1] >> 22) & 1)) - addr &= 0xffff; - addr += base; + down(&child->mm->context.sem); + if (unlikely((seg >> 3) >= child->mm->context.size)) + addr = -1L; /* bogus selector, access would fault */ + else { + desc = child->mm->context.ldt + seg; + base = ((desc[0] >> 16) | + ((desc[1] & 0xff) << 16) | + (desc[1] & 0xff000000)); + + /* 16-bit code segment? */ + if (!((desc[1] >> 22) & 1)) + addr &= 0xffff; + addr += base; + } up(&child->mm->context.sem); } return addr; @@ -358,17 +366,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp, datap); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -395,10 +395,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 2d61e65eeb50..74871d066c2b 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -601,6 +601,8 @@ void __init setup_arch(char **cmdline_p) * NOTE: at this point the bootmem allocator is fully available. */ + paravirt_post_allocator_init(); + dmi_scan_machine(); #ifdef CONFIG_X86_GENERICARCH diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c index 6299c080f6e2..2d35d8502029 100644 --- a/arch/i386/kernel/smp.c +++ b/arch/i386/kernel/smp.c @@ -22,6 +22,7 @@ #include <asm/mtrr.h> #include <asm/tlbflush.h> +#include <asm/mmu_context.h> #include <mach_apic.h> /* @@ -249,13 +250,13 @@ static unsigned long flush_va; static DEFINE_SPINLOCK(tlbstate_lock); /* - * We cannot call mmdrop() because we are in interrupt context, + * We cannot call mmdrop() because we are in interrupt context, * instead update mm->cpu_vm_mask. * * We need to reload %cr3 since the page tables may be going * away from under us.. */ -static inline void leave_mm (unsigned long cpu) +void leave_mm(unsigned long cpu) { if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK) BUG(); diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 0b2954534b8e..5910d3fac561 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -148,7 +148,7 @@ void __init smp_alloc_memory(void) * a given CPU */ -static void __cpuinit smp_store_cpu_info(int id) +void __cpuinit smp_store_cpu_info(int id) { struct cpuinfo_x86 *c = cpu_data + id; @@ -308,8 +308,7 @@ cpumask_t cpu_coregroup_map(int cpu) /* representing cpus for which sibling maps can be computed */ static cpumask_t cpu_sibling_setup_map; -static inline void -set_cpu_sibling_map(int cpu) +void set_cpu_sibling_map(int cpu) { int i; struct cpuinfo_x86 *c = cpu_data; @@ -1144,8 +1143,7 @@ void __init native_smp_prepare_boot_cpu(void) } #ifdef CONFIG_HOTPLUG_CPU -static void -remove_siblinginfo(int cpu) +void remove_siblinginfo(int cpu) { int sibling; struct cpuinfo_x86 *c = cpu_data; diff --git a/arch/i386/kernel/smpcommon.c b/arch/i386/kernel/smpcommon.c index 1868ae18eb4d..bbfe85a0f699 100644 --- a/arch/i386/kernel/smpcommon.c +++ b/arch/i386/kernel/smpcommon.c @@ -47,7 +47,7 @@ int smp_call_function(void (*func) (void *info), void *info, int nonatomic, EXPORT_SYMBOL(smp_call_function); /** - * smp_call_function_single - Run a function on another CPU + * smp_call_function_single - Run a function on a specific CPU * @cpu: The target CPU. Cannot be the calling CPU. * @func: The function to run. This must be fast and non-blocking. * @info: An arbitrary pointer to pass to the function. @@ -66,9 +66,11 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, int ret; int me = get_cpu(); if (cpu == me) { - WARN_ON(1); + local_irq_disable(); + func(info); + local_irq_enable(); put_cpu(); - return -EBUSY; + return 0; } ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait); diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S index bf6adce52267..8344c70adf61 100644 --- a/arch/i386/kernel/syscall_table.S +++ b/arch/i386/kernel/syscall_table.S @@ -323,3 +323,4 @@ ENTRY(sys_call_table) .long sys_signalfd .long sys_timerfd .long sys_eventfd + .long sys_fallocate diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 28bd1c5163ec..3e7753c78b9b 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -41,6 +41,10 @@ #include <linux/mca.h> #endif +#if defined(CONFIG_EDAC) +#include <linux/edac.h> +#endif + #include <asm/processor.h> #include <asm/system.h> #include <asm/io.h> @@ -433,6 +437,7 @@ void die(const char * str, struct pt_regs * regs, long err) bust_spinlocks(0); die.lock_owner = -1; + add_taint(TAINT_DIE); spin_unlock_irqrestore(&die.lock, flags); if (!regs) @@ -517,10 +522,12 @@ fastcall void do_##name(struct pt_regs * regs, long error_code) \ do_trap(trapnr, signr, str, 0, regs, error_code, NULL); \ } -#define DO_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr) \ +#define DO_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr, irq) \ fastcall void do_##name(struct pt_regs * regs, long error_code) \ { \ siginfo_t info; \ + if (irq) \ + local_irq_enable(); \ info.si_signo = signr; \ info.si_errno = 0; \ info.si_code = sicode; \ @@ -560,13 +567,13 @@ DO_VM86_ERROR( 3, SIGTRAP, "int3", int3) #endif DO_VM86_ERROR( 4, SIGSEGV, "overflow", overflow) DO_VM86_ERROR( 5, SIGSEGV, "bounds", bounds) -DO_ERROR_INFO( 6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->eip) +DO_ERROR_INFO( 6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->eip, 0) DO_ERROR( 9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun) DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS) DO_ERROR(11, SIGBUS, "segment not present", segment_not_present) DO_ERROR(12, SIGBUS, "stack segment", stack_segment) -DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0) -DO_ERROR_INFO(32, SIGSEGV, "iret exception", iret_error, ILL_BADSTK, 0) +DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0, 0) +DO_ERROR_INFO(32, SIGSEGV, "iret exception", iret_error, ILL_BADSTK, 0, 1) fastcall void __kprobes do_general_protection(struct pt_regs * regs, long error_code) @@ -635,6 +642,14 @@ mem_parity_error(unsigned char reason, struct pt_regs * regs) printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x on " "CPU %d.\n", reason, smp_processor_id()); printk(KERN_EMERG "You have some hardware problem, likely on the PCI bus.\n"); + +#if defined(CONFIG_EDAC) + if(edac_handler_set()) { + edac_atomic_assert_error(); + return; + } +#endif + if (panic_on_unrecovered_nmi) panic("NMI: Not continuing"); @@ -1053,6 +1068,7 @@ asmlinkage void math_state_restore(void) thread->status |= TS_USEDFPU; /* So we fnsave on switch_to() */ tsk->fpu_counter++; } +EXPORT_SYMBOL_GPL(math_state_restore); #ifndef CONFIG_MATH_EMULATION diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index ea63a30ca3e8..debd7dbb4158 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -27,6 +27,7 @@ static int tsc_enabled; * an extra value to store the TSC freq */ unsigned int tsc_khz; +EXPORT_SYMBOL_GPL(tsc_khz); int tsc_disable; @@ -58,10 +59,11 @@ __setup("notsc", tsc_setup); */ static int tsc_unstable; -static inline int check_tsc_unstable(void) +int check_tsc_unstable(void) { return tsc_unstable; } +EXPORT_SYMBOL_GPL(check_tsc_unstable); /* Accellerators for sched_clock() * convert from cycles(64bits) => nanoseconds (64bits) @@ -84,7 +86,7 @@ static inline int check_tsc_unstable(void) * * -johnstul@us.ibm.com "math is hard, lets go shopping!" */ -static unsigned long cyc2ns_scale __read_mostly; +unsigned long cyc2ns_scale __read_mostly; #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ @@ -93,15 +95,10 @@ static inline void set_cyc2ns_scale(unsigned long cpu_khz) cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz; } -static inline unsigned long long cycles_2_ns(unsigned long long cyc) -{ - return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; -} - /* * Scheduler clock - returns current time in nanosec units. */ -unsigned long long sched_clock(void) +unsigned long long native_sched_clock(void) { unsigned long long this_offset; @@ -118,12 +115,24 @@ unsigned long long sched_clock(void) return (jiffies_64 - INITIAL_JIFFIES) * (1000000000 / HZ); /* read the Time Stamp Counter: */ - get_scheduled_cycles(this_offset); + rdtscll(this_offset); /* return the value in ns */ return cycles_2_ns(this_offset); } +/* We need to define a real function for sched_clock, to override the + weak default version */ +#ifdef CONFIG_PARAVIRT +unsigned long long sched_clock(void) +{ + return paravirt_sched_clock(); +} +#else +unsigned long long sched_clock(void) + __attribute__((alias("native_sched_clock"))); +#endif + unsigned long native_calculate_cpu_khz(void) { unsigned long long start, end; diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c index c12720d7cbc5..72042bb7ec94 100644 --- a/arch/i386/kernel/vmi.c +++ b/arch/i386/kernel/vmi.c @@ -362,7 +362,7 @@ static void *vmi_kmap_atomic_pte(struct page *page, enum km_type type) } #endif -static void vmi_allocate_pt(u32 pfn) +static void vmi_allocate_pt(struct mm_struct *mm, u32 pfn) { vmi_set_page_type(pfn, VMI_PAGE_L1); vmi_ops.allocate_page(pfn, VMI_PAGE_L1, 0, 0, 0); @@ -891,7 +891,7 @@ static inline int __init activate_vmi(void) paravirt_ops.setup_boot_clock = vmi_time_bsp_init; paravirt_ops.setup_secondary_clock = vmi_time_ap_init; #endif - paravirt_ops.get_scheduled_cycles = vmi_get_sched_cycles; + paravirt_ops.sched_clock = vmi_sched_clock; paravirt_ops.get_cpu_khz = vmi_cpu_khz; /* We have true wallclock functions; disable CMOS clock sync */ diff --git a/arch/i386/kernel/vmiclock.c b/arch/i386/kernel/vmiclock.c index 26a37f8a8762..f9b845f4e692 100644 --- a/arch/i386/kernel/vmiclock.c +++ b/arch/i386/kernel/vmiclock.c @@ -64,10 +64,10 @@ int vmi_set_wallclock(unsigned long now) return 0; } -/* paravirt_ops.get_scheduled_cycles = vmi_get_sched_cycles */ -unsigned long long vmi_get_sched_cycles(void) +/* paravirt_ops.sched_clock = vmi_sched_clock */ +unsigned long long vmi_sched_clock(void) { - return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); + return cycles_2_ns(vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE)); } /* paravirt_ops.get_cpu_khz = vmi_cpu_khz */ diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S index aa87b06c7c82..7d72cce00529 100644 --- a/arch/i386/kernel/vmlinux.lds.S +++ b/arch/i386/kernel/vmlinux.lds.S @@ -60,7 +60,9 @@ SECTIONS __stop___ex_table = .; } - BUG_TABLE + NOTES :text :note + + BUG_TABLE :text . = ALIGN(4); .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { @@ -88,6 +90,7 @@ SECTIONS . = ALIGN(4096); .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { + *(.data.page_aligned) *(.data.idt) } @@ -180,6 +183,7 @@ SECTIONS .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { __per_cpu_start = .; *(.data.percpu) + *(.data.percpu.shared_aligned) __per_cpu_end = .; } . = ALIGN(4096); @@ -206,6 +210,4 @@ SECTIONS STABS_DEBUG DWARF_DEBUG - - NOTES } diff --git a/arch/i386/kernel/vsyscall-note.S b/arch/i386/kernel/vsyscall-note.S index d4b5be4f3d5f..271f16a8ca01 100644 --- a/arch/i386/kernel/vsyscall-note.S +++ b/arch/i386/kernel/vsyscall-note.S @@ -3,23 +3,40 @@ * Here we can supply some information useful to userland. */ -#include <linux/uts.h> #include <linux/version.h> +#include <linux/elfnote.h> -#define ASM_ELF_NOTE_BEGIN(name, flags, vendor, type) \ - .section name, flags; \ - .balign 4; \ - .long 1f - 0f; /* name length */ \ - .long 3f - 2f; /* data length */ \ - .long type; /* note type */ \ -0: .asciz vendor; /* vendor name */ \ -1: .balign 4; \ -2: +/* Ideally this would use UTS_NAME, but using a quoted string here + doesn't work. Remember to change this when changing the + kernel's name. */ +ELFNOTE_START(Linux, 0, "a") + .long LINUX_VERSION_CODE +ELFNOTE_END -#define ASM_ELF_NOTE_END \ -3: .balign 4; /* pad out section */ \ - .previous +#ifdef CONFIG_XEN - ASM_ELF_NOTE_BEGIN(".note.kernel-version", "a", UTS_SYSNAME, 0) - .long LINUX_VERSION_CODE - ASM_ELF_NOTE_END +/* + * Add a special note telling glibc's dynamic linker a fake hardware + * flavor that it will use to choose the search path for libraries in the + * same way it uses real hardware capabilities like "mmx". + * We supply "nosegneg" as the fake capability, to indicate that we + * do not like negative offsets in instructions using segment overrides, + * since we implement those inefficiently. This makes it possible to + * install libraries optimized to avoid those access patterns in someplace + * like /lib/i686/tls/nosegneg. Note that an /etc/ld.so.conf.d/file + * corresponding to the bits here is needed to make ldconfig work right. + * It should contain: + * hwcap 1 nosegneg + * to match the mapping of bit to name that we give here. + */ + +/* Bit used for the pseudo-hwcap for non-negative segments. We use + bit 1 to avoid bugs in some versions of glibc when bit 0 is + used; the choice is otherwise arbitrary. */ +#define VDSO_NOTE_NONEGSEG_BIT 1 + +ELFNOTE_START(GNU, 2, "a") + .long 1, 1<<VDSO_NOTE_NONEGSEG_BIT /* ncaps, mask */ + .byte VDSO_NOTE_NONEGSEG_BIT; .asciz "nosegneg" /* bit, name */ +ELFNOTE_END +#endif diff --git a/arch/i386/mach-voyager/voyager_thread.c b/arch/i386/mach-voyager/voyager_thread.c index b4b24e0e45e1..f9d595338159 100644 --- a/arch/i386/mach-voyager/voyager_thread.c +++ b/arch/i386/mach-voyager/voyager_thread.c @@ -52,7 +52,7 @@ execute(const char *string) NULL, }; - if ((ret = call_usermodehelper(argv[0], argv, envp, 1)) != 0) { + if ((ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC)) != 0) { printk(KERN_ERR "Voyager failed to run \"%s\": %i\n", string, ret); } diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c index 1ecb3e43b523..e92a10124935 100644 --- a/arch/i386/mm/fault.c +++ b/arch/i386/mm/fault.c @@ -303,6 +303,7 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs, struct vm_area_struct * vma; unsigned long address; int write, si_code; + int fault; /* get the address */ address = read_cr2(); @@ -422,20 +423,18 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ - switch (handle_mm_fault(mm, vma, address, write)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: + fault = handle_mm_fault(mm, vma, address, write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) goto out_of_memory; - default: - BUG(); + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; /* * Did it hit the DOS screen memory VA from vm86 mode? diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index 7135946d3663..6a68b1ae061c 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -87,7 +87,7 @@ static pte_t * __init one_page_table_init(pmd_t *pmd) if (!(pmd_val(*pmd) & _PAGE_PRESENT)) { pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE); - paravirt_alloc_pt(__pa(page_table) >> PAGE_SHIFT); + paravirt_alloc_pt(&init_mm, __pa(page_table) >> PAGE_SHIFT); set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); BUG_ON(page_table != pte_offset_kernel(pmd, 0)); } @@ -473,6 +473,7 @@ void zap_low_mappings (void) static int disable_nx __initdata = 0; u64 __supported_pte_mask __read_mostly = ~_PAGE_NX; +EXPORT_SYMBOL_GPL(__supported_pte_mask); /* * noexec = on|off diff --git a/arch/i386/mm/pageattr.c b/arch/i386/mm/pageattr.c index 2eb14a73be9c..37992ffb1633 100644 --- a/arch/i386/mm/pageattr.c +++ b/arch/i386/mm/pageattr.c @@ -60,7 +60,7 @@ static struct page *split_large_page(unsigned long address, pgprot_t prot, address = __pa(address); addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); - paravirt_alloc_pt(page_to_pfn(base)); + paravirt_alloc_pt(&init_mm, page_to_pfn(base)); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, addr == address ? prot : ref_prot)); diff --git a/arch/i386/video/Makefile b/arch/i386/video/Makefile new file mode 100644 index 000000000000..2c447c94adcc --- /dev/null +++ b/arch/i386/video/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_FB) += fbdev.o diff --git a/arch/i386/video/fbdev.c b/arch/i386/video/fbdev.c new file mode 100644 index 000000000000..48fb38d7d2c0 --- /dev/null +++ b/arch/i386/video/fbdev.c @@ -0,0 +1,32 @@ +/* + * arch/i386/video/fbdev.c - i386 Framebuffer + * + * Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + */ +#include <linux/fb.h> +#include <linux/pci.h> + +int fb_is_primary_device(struct fb_info *info) +{ + struct device *device = info->device; + struct pci_dev *pci_dev = NULL; + struct resource *res = NULL; + int retval = 0; + + if (device) + pci_dev = to_pci_dev(device); + + if (pci_dev) + res = &pci_dev->resource[PCI_ROM_RESOURCE]; + + if (res && res->flags & IORESOURCE_ROM_SHADOW) + retval = 1; + + return retval; +} +EXPORT_SYMBOL(fb_is_primary_device); diff --git a/arch/i386/xen/Kconfig b/arch/i386/xen/Kconfig new file mode 100644 index 000000000000..9df99e1885a4 --- /dev/null +++ b/arch/i386/xen/Kconfig @@ -0,0 +1,11 @@ +# +# This Kconfig describes xen options +# + +config XEN + bool "Enable support for Xen hypervisor" + depends on PARAVIRT && X86_CMPXCHG && X86_TSC && !NEED_MULTIPLE_NODES + help + This is the Linux Xen port. Enabling this will allow the + kernel to boot in a paravirtualized environment under the + Xen hypervisor. diff --git a/arch/i386/xen/Makefile b/arch/i386/xen/Makefile new file mode 100644 index 000000000000..343df246bd3e --- /dev/null +++ b/arch/i386/xen/Makefile @@ -0,0 +1,4 @@ +obj-y := enlighten.o setup.o features.o multicalls.o mmu.o \ + events.o time.o manage.o xen-asm.o + +obj-$(CONFIG_SMP) += smp.o diff --git a/arch/i386/xen/enlighten.c b/arch/i386/xen/enlighten.c new file mode 100644 index 000000000000..9a8c1181c001 --- /dev/null +++ b/arch/i386/xen/enlighten.c @@ -0,0 +1,1144 @@ +/* + * Core of Xen paravirt_ops implementation. + * + * This file contains the xen_paravirt_ops structure itself, and the + * implementations for: + * - privileged instructions + * - interrupt flags + * - segment operations + * - booting and setup + * + * Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007 + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/preempt.h> +#include <linux/hardirq.h> +#include <linux/percpu.h> +#include <linux/delay.h> +#include <linux/start_kernel.h> +#include <linux/sched.h> +#include <linux/bootmem.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/page-flags.h> +#include <linux/highmem.h> +#include <linux/smp.h> + +#include <xen/interface/xen.h> +#include <xen/interface/physdev.h> +#include <xen/interface/vcpu.h> +#include <xen/interface/sched.h> +#include <xen/features.h> +#include <xen/page.h> + +#include <asm/paravirt.h> +#include <asm/page.h> +#include <asm/xen/hypercall.h> +#include <asm/xen/hypervisor.h> +#include <asm/fixmap.h> +#include <asm/processor.h> +#include <asm/setup.h> +#include <asm/desc.h> +#include <asm/pgtable.h> +#include <asm/tlbflush.h> +#include <asm/reboot.h> + +#include "xen-ops.h" +#include "mmu.h" +#include "multicalls.h" + +EXPORT_SYMBOL_GPL(hypercall_page); + +DEFINE_PER_CPU(enum paravirt_lazy_mode, xen_lazy_mode); + +DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu); +DEFINE_PER_CPU(struct vcpu_info, xen_vcpu_info); +DEFINE_PER_CPU(unsigned long, xen_cr3); + +struct start_info *xen_start_info; +EXPORT_SYMBOL_GPL(xen_start_info); + +static /* __initdata */ struct shared_info dummy_shared_info; + +/* + * Point at some empty memory to start with. We map the real shared_info + * page as soon as fixmap is up and running. + */ +struct shared_info *HYPERVISOR_shared_info = (void *)&dummy_shared_info; + +/* + * Flag to determine whether vcpu info placement is available on all + * VCPUs. We assume it is to start with, and then set it to zero on + * the first failure. This is because it can succeed on some VCPUs + * and not others, since it can involve hypervisor memory allocation, + * or because the guest failed to guarantee all the appropriate + * constraints on all VCPUs (ie buffer can't cross a page boundary). + * + * Note that any particular CPU may be using a placed vcpu structure, + * but we can only optimise if the all are. + * + * 0: not available, 1: available + */ +static int have_vcpu_info_placement = 1; + +static void __init xen_vcpu_setup(int cpu) +{ + struct vcpu_register_vcpu_info info; + int err; + struct vcpu_info *vcpup; + + per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu]; + + if (!have_vcpu_info_placement) + return; /* already tested, not available */ + + vcpup = &per_cpu(xen_vcpu_info, cpu); + + info.mfn = virt_to_mfn(vcpup); + info.offset = offset_in_page(vcpup); + + printk(KERN_DEBUG "trying to map vcpu_info %d at %p, mfn %x, offset %d\n", + cpu, vcpup, info.mfn, info.offset); + + /* Check to see if the hypervisor will put the vcpu_info + structure where we want it, which allows direct access via + a percpu-variable. */ + err = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_info, cpu, &info); + + if (err) { + printk(KERN_DEBUG "register_vcpu_info failed: err=%d\n", err); + have_vcpu_info_placement = 0; + } else { + /* This cpu is using the registered vcpu info, even if + later ones fail to. */ + per_cpu(xen_vcpu, cpu) = vcpup; + + printk(KERN_DEBUG "cpu %d using vcpu_info at %p\n", + cpu, vcpup); + } +} + +static void __init xen_banner(void) +{ + printk(KERN_INFO "Booting paravirtualized kernel on %s\n", + paravirt_ops.name); + printk(KERN_INFO "Hypervisor signature: %s\n", xen_start_info->magic); +} + +static void xen_cpuid(unsigned int *eax, unsigned int *ebx, + unsigned int *ecx, unsigned int *edx) +{ + unsigned maskedx = ~0; + + /* + * Mask out inconvenient features, to try and disable as many + * unsupported kernel subsystems as possible. + */ + if (*eax == 1) + maskedx = ~((1 << X86_FEATURE_APIC) | /* disable APIC */ + (1 << X86_FEATURE_ACPI) | /* disable ACPI */ + (1 << X86_FEATURE_ACC)); /* thermal monitoring */ + + asm(XEN_EMULATE_PREFIX "cpuid" + : "=a" (*eax), + "=b" (*ebx), + "=c" (*ecx), + "=d" (*edx) + : "0" (*eax), "2" (*ecx)); + *edx &= maskedx; +} + +static void xen_set_debugreg(int reg, unsigned long val) +{ + HYPERVISOR_set_debugreg(reg, val); +} + +static unsigned long xen_get_debugreg(int reg) +{ + return HYPERVISOR_get_debugreg(reg); +} + +static unsigned long xen_save_fl(void) +{ + struct vcpu_info *vcpu; + unsigned long flags; + + vcpu = x86_read_percpu(xen_vcpu); + + /* flag has opposite sense of mask */ + flags = !vcpu->evtchn_upcall_mask; + + /* convert to IF type flag + -0 -> 0x00000000 + -1 -> 0xffffffff + */ + return (-flags) & X86_EFLAGS_IF; +} + +static void xen_restore_fl(unsigned long flags) +{ + struct vcpu_info *vcpu; + + /* convert from IF type flag */ + flags = !(flags & X86_EFLAGS_IF); + + /* There's a one instruction preempt window here. We need to + make sure we're don't switch CPUs between getting the vcpu + pointer and updating the mask. */ + preempt_disable(); + vcpu = x86_read_percpu(xen_vcpu); + vcpu->evtchn_upcall_mask = flags; + preempt_enable_no_resched(); + + /* Doesn't matter if we get preempted here, because any + pending event will get dealt with anyway. */ + + if (flags == 0) { + preempt_check_resched(); + barrier(); /* unmask then check (avoid races) */ + if (unlikely(vcpu->evtchn_upcall_pending)) + force_evtchn_callback(); + } +} + +static void xen_irq_disable(void) +{ + /* There's a one instruction preempt window here. We need to + make sure we're don't switch CPUs between getting the vcpu + pointer and updating the mask. */ + preempt_disable(); + x86_read_percpu(xen_vcpu)->evtchn_upcall_mask = 1; + preempt_enable_no_resched(); +} + +static void xen_irq_enable(void) +{ + struct vcpu_info *vcpu; + + /* There's a one instruction preempt window here. We need to + make sure we're don't switch CPUs between getting the vcpu + pointer and updating the mask. */ + preempt_disable(); + vcpu = x86_read_percpu(xen_vcpu); + vcpu->evtchn_upcall_mask = 0; + preempt_enable_no_resched(); + + /* Doesn't matter if we get preempted here, because any + pending event will get dealt with anyway. */ + + barrier(); /* unmask then check (avoid races) */ + if (unlikely(vcpu->evtchn_upcall_pending)) + force_evtchn_callback(); +} + +static void xen_safe_halt(void) +{ + /* Blocking includes an implicit local_irq_enable(). */ + if (HYPERVISOR_sched_op(SCHEDOP_block, 0) != 0) + BUG(); +} + +static void xen_halt(void) +{ + if (irqs_disabled()) + HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL); + else + xen_safe_halt(); +} + +static void xen_set_lazy_mode(enum paravirt_lazy_mode mode) +{ + BUG_ON(preemptible()); + + switch (mode) { + case PARAVIRT_LAZY_NONE: + BUG_ON(x86_read_percpu(xen_lazy_mode) == PARAVIRT_LAZY_NONE); + break; + + case PARAVIRT_LAZY_MMU: + case PARAVIRT_LAZY_CPU: + BUG_ON(x86_read_percpu(xen_lazy_mode) != PARAVIRT_LAZY_NONE); + break; + + case PARAVIRT_LAZY_FLUSH: + /* flush if necessary, but don't change state */ + if (x86_read_percpu(xen_lazy_mode) != PARAVIRT_LAZY_NONE) + xen_mc_flush(); + return; + } + + xen_mc_flush(); + x86_write_percpu(xen_lazy_mode, mode); +} + +static unsigned long xen_store_tr(void) +{ + return 0; +} + +static void xen_set_ldt(const void *addr, unsigned entries) +{ + unsigned long linear_addr = (unsigned long)addr; + struct mmuext_op *op; + struct multicall_space mcs = xen_mc_entry(sizeof(*op)); + + op = mcs.args; + op->cmd = MMUEXT_SET_LDT; + if (linear_addr) { + /* ldt my be vmalloced, use arbitrary_virt_to_machine */ + xmaddr_t maddr; + maddr = arbitrary_virt_to_machine((unsigned long)addr); + linear_addr = (unsigned long)maddr.maddr; + } + op->arg1.linear_addr = linear_addr; + op->arg2.nr_ents = entries; + + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_CPU); +} + +static void xen_load_gdt(const struct Xgt_desc_struct *dtr) +{ + unsigned long *frames; + unsigned long va = dtr->address; + unsigned int size = dtr->size + 1; + unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE; + int f; + struct multicall_space mcs; + + /* A GDT can be up to 64k in size, which corresponds to 8192 + 8-byte entries, or 16 4k pages.. */ + + BUG_ON(size > 65536); + BUG_ON(va & ~PAGE_MASK); + + mcs = xen_mc_entry(sizeof(*frames) * pages); + frames = mcs.args; + + for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) { + frames[f] = virt_to_mfn(va); + make_lowmem_page_readonly((void *)va); + } + + MULTI_set_gdt(mcs.mc, frames, size / sizeof(struct desc_struct)); + + xen_mc_issue(PARAVIRT_LAZY_CPU); +} + +static void load_TLS_descriptor(struct thread_struct *t, + unsigned int cpu, unsigned int i) +{ + struct desc_struct *gdt = get_cpu_gdt_table(cpu); + xmaddr_t maddr = virt_to_machine(&gdt[GDT_ENTRY_TLS_MIN+i]); + struct multicall_space mc = __xen_mc_entry(0); + + MULTI_update_descriptor(mc.mc, maddr.maddr, t->tls_array[i]); +} + +static void xen_load_tls(struct thread_struct *t, unsigned int cpu) +{ + xen_mc_batch(); + + load_TLS_descriptor(t, cpu, 0); + load_TLS_descriptor(t, cpu, 1); + load_TLS_descriptor(t, cpu, 2); + + xen_mc_issue(PARAVIRT_LAZY_CPU); + + /* + * XXX sleazy hack: If we're being called in a lazy-cpu zone, + * it means we're in a context switch, and %gs has just been + * saved. This means we can zero it out to prevent faults on + * exit from the hypervisor if the next process has no %gs. + * Either way, it has been saved, and the new value will get + * loaded properly. This will go away as soon as Xen has been + * modified to not save/restore %gs for normal hypercalls. + */ + if (xen_get_lazy_mode() == PARAVIRT_LAZY_CPU) + loadsegment(gs, 0); +} + +static void xen_write_ldt_entry(struct desc_struct *dt, int entrynum, + u32 low, u32 high) +{ + unsigned long lp = (unsigned long)&dt[entrynum]; + xmaddr_t mach_lp = virt_to_machine(lp); + u64 entry = (u64)high << 32 | low; + + preempt_disable(); + + xen_mc_flush(); + if (HYPERVISOR_update_descriptor(mach_lp.maddr, entry)) + BUG(); + + preempt_enable(); +} + +static int cvt_gate_to_trap(int vector, u32 low, u32 high, + struct trap_info *info) +{ + u8 type, dpl; + + type = (high >> 8) & 0x1f; + dpl = (high >> 13) & 3; + + if (type != 0xf && type != 0xe) + return 0; + + info->vector = vector; + info->address = (high & 0xffff0000) | (low & 0x0000ffff); + info->cs = low >> 16; + info->flags = dpl; + /* interrupt gates clear IF */ + if (type == 0xe) + info->flags |= 4; + + return 1; +} + +/* Locations of each CPU's IDT */ +static DEFINE_PER_CPU(struct Xgt_desc_struct, idt_desc); + +/* Set an IDT entry. If the entry is part of the current IDT, then + also update Xen. */ +static void xen_write_idt_entry(struct desc_struct *dt, int entrynum, + u32 low, u32 high) +{ + unsigned long p = (unsigned long)&dt[entrynum]; + unsigned long start, end; + + preempt_disable(); + + start = __get_cpu_var(idt_desc).address; + end = start + __get_cpu_var(idt_desc).size + 1; + + xen_mc_flush(); + + write_dt_entry(dt, entrynum, low, high); + + if (p >= start && (p + 8) <= end) { + struct trap_info info[2]; + + info[1].address = 0; + + if (cvt_gate_to_trap(entrynum, low, high, &info[0])) + if (HYPERVISOR_set_trap_table(info)) + BUG(); + } + + preempt_enable(); +} + +static void xen_convert_trap_info(const struct Xgt_desc_struct *desc, + struct trap_info *traps) +{ + unsigned in, out, count; + + count = (desc->size+1) / 8; + BUG_ON(count > 256); + + for (in = out = 0; in < count; in++) { + const u32 *entry = (u32 *)(desc->address + in * 8); + + if (cvt_gate_to_trap(in, entry[0], entry[1], &traps[out])) + out++; + } + traps[out].address = 0; +} + +void xen_copy_trap_info(struct trap_info *traps) +{ + const struct Xgt_desc_struct *desc = &__get_cpu_var(idt_desc); + + xen_convert_trap_info(desc, traps); +} + +/* Load a new IDT into Xen. In principle this can be per-CPU, so we + hold a spinlock to protect the static traps[] array (static because + it avoids allocation, and saves stack space). */ +static void xen_load_idt(const struct Xgt_desc_struct *desc) +{ + static DEFINE_SPINLOCK(lock); + static struct trap_info traps[257]; + + spin_lock(&lock); + + __get_cpu_var(idt_desc) = *desc; + + xen_convert_trap_info(desc, traps); + + xen_mc_flush(); + if (HYPERVISOR_set_trap_table(traps)) + BUG(); + + spin_unlock(&lock); +} + +/* Write a GDT descriptor entry. Ignore LDT descriptors, since + they're handled differently. */ +static void xen_write_gdt_entry(struct desc_struct *dt, int entry, + u32 low, u32 high) +{ + preempt_disable(); + + switch ((high >> 8) & 0xff) { + case DESCTYPE_LDT: + case DESCTYPE_TSS: + /* ignore */ + break; + + default: { + xmaddr_t maddr = virt_to_machine(&dt[entry]); + u64 desc = (u64)high << 32 | low; + + xen_mc_flush(); + if (HYPERVISOR_update_descriptor(maddr.maddr, desc)) + BUG(); + } + + } + + preempt_enable(); +} + +static void xen_load_esp0(struct tss_struct *tss, + struct thread_struct *thread) +{ + struct multicall_space mcs = xen_mc_entry(0); + MULTI_stack_switch(mcs.mc, __KERNEL_DS, thread->esp0); + xen_mc_issue(PARAVIRT_LAZY_CPU); +} + +static void xen_set_iopl_mask(unsigned mask) +{ + struct physdev_set_iopl set_iopl; + + /* Force the change at ring 0. */ + set_iopl.iopl = (mask == 0) ? 1 : (mask >> 12) & 3; + HYPERVISOR_physdev_op(PHYSDEVOP_set_iopl, &set_iopl); +} + +static void xen_io_delay(void) +{ +} + +#ifdef CONFIG_X86_LOCAL_APIC +static unsigned long xen_apic_read(unsigned long reg) +{ + return 0; +} + +static void xen_apic_write(unsigned long reg, unsigned long val) +{ + /* Warn to see if there's any stray references */ + WARN_ON(1); +} +#endif + +static void xen_flush_tlb(void) +{ + struct mmuext_op *op; + struct multicall_space mcs = xen_mc_entry(sizeof(*op)); + + op = mcs.args; + op->cmd = MMUEXT_TLB_FLUSH_LOCAL; + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_MMU); +} + +static void xen_flush_tlb_single(unsigned long addr) +{ + struct mmuext_op *op; + struct multicall_space mcs = xen_mc_entry(sizeof(*op)); + + op = mcs.args; + op->cmd = MMUEXT_INVLPG_LOCAL; + op->arg1.linear_addr = addr & PAGE_MASK; + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_MMU); +} + +static void xen_flush_tlb_others(const cpumask_t *cpus, struct mm_struct *mm, + unsigned long va) +{ + struct { + struct mmuext_op op; + cpumask_t mask; + } *args; + cpumask_t cpumask = *cpus; + struct multicall_space mcs; + + /* + * A couple of (to be removed) sanity checks: + * + * - current CPU must not be in mask + * - mask must exist :) + */ + BUG_ON(cpus_empty(cpumask)); + BUG_ON(cpu_isset(smp_processor_id(), cpumask)); + BUG_ON(!mm); + + /* If a CPU which we ran on has gone down, OK. */ + cpus_and(cpumask, cpumask, cpu_online_map); + if (cpus_empty(cpumask)) + return; + + mcs = xen_mc_entry(sizeof(*args)); + args = mcs.args; + args->mask = cpumask; + args->op.arg2.vcpumask = &args->mask; + + if (va == TLB_FLUSH_ALL) { + args->op.cmd = MMUEXT_TLB_FLUSH_MULTI; + } else { + args->op.cmd = MMUEXT_INVLPG_MULTI; + args->op.arg1.linear_addr = va; + } + + MULTI_mmuext_op(mcs.mc, &args->op, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_MMU); +} + +static void xen_write_cr2(unsigned long cr2) +{ + x86_read_percpu(xen_vcpu)->arch.cr2 = cr2; +} + +static unsigned long xen_read_cr2(void) +{ + return x86_read_percpu(xen_vcpu)->arch.cr2; +} + +static unsigned long xen_read_cr2_direct(void) +{ + return x86_read_percpu(xen_vcpu_info.arch.cr2); +} + +static void xen_write_cr4(unsigned long cr4) +{ + /* never allow TSC to be disabled */ + native_write_cr4(cr4 & ~X86_CR4_TSD); +} + +static unsigned long xen_read_cr3(void) +{ + return x86_read_percpu(xen_cr3); +} + +static void xen_write_cr3(unsigned long cr3) +{ + BUG_ON(preemptible()); + + if (cr3 == x86_read_percpu(xen_cr3)) { + /* just a simple tlb flush */ + xen_flush_tlb(); + return; + } + + x86_write_percpu(xen_cr3, cr3); + + + { + struct mmuext_op *op; + struct multicall_space mcs = xen_mc_entry(sizeof(*op)); + unsigned long mfn = pfn_to_mfn(PFN_DOWN(cr3)); + + op = mcs.args; + op->cmd = MMUEXT_NEW_BASEPTR; + op->arg1.mfn = mfn; + + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_CPU); + } +} + +/* Early in boot, while setting up the initial pagetable, assume + everything is pinned. */ +static __init void xen_alloc_pt_init(struct mm_struct *mm, u32 pfn) +{ + BUG_ON(mem_map); /* should only be used early */ + make_lowmem_page_readonly(__va(PFN_PHYS(pfn))); +} + +/* This needs to make sure the new pte page is pinned iff its being + attached to a pinned pagetable. */ +static void xen_alloc_pt(struct mm_struct *mm, u32 pfn) +{ + struct page *page = pfn_to_page(pfn); + + if (PagePinned(virt_to_page(mm->pgd))) { + SetPagePinned(page); + + if (!PageHighMem(page)) + make_lowmem_page_readonly(__va(PFN_PHYS(pfn))); + else + /* make sure there are no stray mappings of + this page */ + kmap_flush_unused(); + } +} + +/* This should never happen until we're OK to use struct page */ +static void xen_release_pt(u32 pfn) +{ + struct page *page = pfn_to_page(pfn); + + if (PagePinned(page)) { + if (!PageHighMem(page)) + make_lowmem_page_readwrite(__va(PFN_PHYS(pfn))); + } +} + +#ifdef CONFIG_HIGHPTE +static void *xen_kmap_atomic_pte(struct page *page, enum km_type type) +{ + pgprot_t prot = PAGE_KERNEL; + + if (PagePinned(page)) + prot = PAGE_KERNEL_RO; + + if (0 && PageHighMem(page)) + printk("mapping highpte %lx type %d prot %s\n", + page_to_pfn(page), type, + (unsigned long)pgprot_val(prot) & _PAGE_RW ? "WRITE" : "READ"); + + return kmap_atomic_prot(page, type, prot); +} +#endif + +static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte) +{ + /* If there's an existing pte, then don't allow _PAGE_RW to be set */ + if (pte_val_ma(*ptep) & _PAGE_PRESENT) + pte = __pte_ma(((pte_val_ma(*ptep) & _PAGE_RW) | ~_PAGE_RW) & + pte_val_ma(pte)); + + return pte; +} + +/* Init-time set_pte while constructing initial pagetables, which + doesn't allow RO pagetable pages to be remapped RW */ +static __init void xen_set_pte_init(pte_t *ptep, pte_t pte) +{ + pte = mask_rw_pte(ptep, pte); + + xen_set_pte(ptep, pte); +} + +static __init void xen_pagetable_setup_start(pgd_t *base) +{ + pgd_t *xen_pgd = (pgd_t *)xen_start_info->pt_base; + + /* special set_pte for pagetable initialization */ + paravirt_ops.set_pte = xen_set_pte_init; + + init_mm.pgd = base; + /* + * copy top-level of Xen-supplied pagetable into place. For + * !PAE we can use this as-is, but for PAE it is a stand-in + * while we copy the pmd pages. + */ + memcpy(base, xen_pgd, PTRS_PER_PGD * sizeof(pgd_t)); + + if (PTRS_PER_PMD > 1) { + int i; + /* + * For PAE, need to allocate new pmds, rather than + * share Xen's, since Xen doesn't like pmd's being + * shared between address spaces. + */ + for (i = 0; i < PTRS_PER_PGD; i++) { + if (pgd_val_ma(xen_pgd[i]) & _PAGE_PRESENT) { + pmd_t *pmd = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE); + + memcpy(pmd, (void *)pgd_page_vaddr(xen_pgd[i]), + PAGE_SIZE); + + make_lowmem_page_readonly(pmd); + + set_pgd(&base[i], __pgd(1 + __pa(pmd))); + } else + pgd_clear(&base[i]); + } + } + + /* make sure zero_page is mapped RO so we can use it in pagetables */ + make_lowmem_page_readonly(empty_zero_page); + make_lowmem_page_readonly(base); + /* + * Switch to new pagetable. This is done before + * pagetable_init has done anything so that the new pages + * added to the table can be prepared properly for Xen. + */ + xen_write_cr3(__pa(base)); +} + +static __init void xen_pagetable_setup_done(pgd_t *base) +{ + /* This will work as long as patching hasn't happened yet + (which it hasn't) */ + paravirt_ops.alloc_pt = xen_alloc_pt; + paravirt_ops.set_pte = xen_set_pte; + + if (!xen_feature(XENFEAT_auto_translated_physmap)) { + /* + * Create a mapping for the shared info page. + * Should be set_fixmap(), but shared_info is a machine + * address with no corresponding pseudo-phys address. + */ + set_pte_mfn(fix_to_virt(FIX_PARAVIRT_BOOTMAP), + PFN_DOWN(xen_start_info->shared_info), + PAGE_KERNEL); + + HYPERVISOR_shared_info = + (struct shared_info *)fix_to_virt(FIX_PARAVIRT_BOOTMAP); + + } else + HYPERVISOR_shared_info = + (struct shared_info *)__va(xen_start_info->shared_info); + + /* Actually pin the pagetable down, but we can't set PG_pinned + yet because the page structures don't exist yet. */ + { + struct mmuext_op op; +#ifdef CONFIG_X86_PAE + op.cmd = MMUEXT_PIN_L3_TABLE; +#else + op.cmd = MMUEXT_PIN_L3_TABLE; +#endif + op.arg1.mfn = pfn_to_mfn(PFN_DOWN(__pa(base))); + if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF)) + BUG(); + } +} + +/* This is called once we have the cpu_possible_map */ +void __init xen_setup_vcpu_info_placement(void) +{ + int cpu; + + for_each_possible_cpu(cpu) + xen_vcpu_setup(cpu); + + /* xen_vcpu_setup managed to place the vcpu_info within the + percpu area for all cpus, so make use of it */ + if (have_vcpu_info_placement) { + printk(KERN_INFO "Xen: using vcpu_info placement\n"); + + paravirt_ops.save_fl = xen_save_fl_direct; + paravirt_ops.restore_fl = xen_restore_fl_direct; + paravirt_ops.irq_disable = xen_irq_disable_direct; + paravirt_ops.irq_enable = xen_irq_enable_direct; + paravirt_ops.read_cr2 = xen_read_cr2_direct; + paravirt_ops.iret = xen_iret_direct; + } +} + +static unsigned xen_patch(u8 type, u16 clobbers, void *insns, unsigned len) +{ + char *start, *end, *reloc; + unsigned ret; + + start = end = reloc = NULL; + +#define SITE(x) \ + case PARAVIRT_PATCH(x): \ + if (have_vcpu_info_placement) { \ + start = (char *)xen_##x##_direct; \ + end = xen_##x##_direct_end; \ + reloc = xen_##x##_direct_reloc; \ + } \ + goto patch_site + + switch (type) { + SITE(irq_enable); + SITE(irq_disable); + SITE(save_fl); + SITE(restore_fl); +#undef SITE + + patch_site: + if (start == NULL || (end-start) > len) + goto default_patch; + + ret = paravirt_patch_insns(insns, len, start, end); + + /* Note: because reloc is assigned from something that + appears to be an array, gcc assumes it's non-null, + but doesn't know its relationship with start and + end. */ + if (reloc > start && reloc < end) { + int reloc_off = reloc - start; + long *relocp = (long *)(insns + reloc_off); + long delta = start - (char *)insns; + + *relocp += delta; + } + break; + + default_patch: + default: + ret = paravirt_patch_default(type, clobbers, insns, len); + break; + } + + return ret; +} + +static const struct paravirt_ops xen_paravirt_ops __initdata = { + .paravirt_enabled = 1, + .shared_kernel_pmd = 0, + + .name = "Xen", + .banner = xen_banner, + + .patch = xen_patch, + + .memory_setup = xen_memory_setup, + .arch_setup = xen_arch_setup, + .init_IRQ = xen_init_IRQ, + .post_allocator_init = xen_mark_init_mm_pinned, + + .time_init = xen_time_init, + .set_wallclock = xen_set_wallclock, + .get_wallclock = xen_get_wallclock, + .get_cpu_khz = xen_cpu_khz, + .sched_clock = xen_sched_clock, + + .cpuid = xen_cpuid, + + .set_debugreg = xen_set_debugreg, + .get_debugreg = xen_get_debugreg, + + .clts = native_clts, + + .read_cr0 = native_read_cr0, + .write_cr0 = native_write_cr0, + + .read_cr2 = xen_read_cr2, + .write_cr2 = xen_write_cr2, + + .read_cr3 = xen_read_cr3, + .write_cr3 = xen_write_cr3, + + .read_cr4 = native_read_cr4, + .read_cr4_safe = native_read_cr4_safe, + .write_cr4 = xen_write_cr4, + + .save_fl = xen_save_fl, + .restore_fl = xen_restore_fl, + .irq_disable = xen_irq_disable, + .irq_enable = xen_irq_enable, + .safe_halt = xen_safe_halt, + .halt = xen_halt, + .wbinvd = native_wbinvd, + + .read_msr = native_read_msr_safe, + .write_msr = native_write_msr_safe, + .read_tsc = native_read_tsc, + .read_pmc = native_read_pmc, + + .iret = (void *)&hypercall_page[__HYPERVISOR_iret], + .irq_enable_sysexit = NULL, /* never called */ + + .load_tr_desc = paravirt_nop, + .set_ldt = xen_set_ldt, + .load_gdt = xen_load_gdt, + .load_idt = xen_load_idt, + .load_tls = xen_load_tls, + + .store_gdt = native_store_gdt, + .store_idt = native_store_idt, + .store_tr = xen_store_tr, + + .write_ldt_entry = xen_write_ldt_entry, + .write_gdt_entry = xen_write_gdt_entry, + .write_idt_entry = xen_write_idt_entry, + .load_esp0 = xen_load_esp0, + + .set_iopl_mask = xen_set_iopl_mask, + .io_delay = xen_io_delay, + +#ifdef CONFIG_X86_LOCAL_APIC + .apic_write = xen_apic_write, + .apic_write_atomic = xen_apic_write, + .apic_read = xen_apic_read, + .setup_boot_clock = paravirt_nop, + .setup_secondary_clock = paravirt_nop, + .startup_ipi_hook = paravirt_nop, +#endif + + .flush_tlb_user = xen_flush_tlb, + .flush_tlb_kernel = xen_flush_tlb, + .flush_tlb_single = xen_flush_tlb_single, + .flush_tlb_others = xen_flush_tlb_others, + + .pte_update = paravirt_nop, + .pte_update_defer = paravirt_nop, + + .pagetable_setup_start = xen_pagetable_setup_start, + .pagetable_setup_done = xen_pagetable_setup_done, + + .alloc_pt = xen_alloc_pt_init, + .release_pt = xen_release_pt, + .alloc_pd = paravirt_nop, + .alloc_pd_clone = paravirt_nop, + .release_pd = paravirt_nop, + +#ifdef CONFIG_HIGHPTE + .kmap_atomic_pte = xen_kmap_atomic_pte, +#endif + + .set_pte = NULL, /* see xen_pagetable_setup_* */ + .set_pte_at = xen_set_pte_at, + .set_pmd = xen_set_pmd, + + .pte_val = xen_pte_val, + .pgd_val = xen_pgd_val, + + .make_pte = xen_make_pte, + .make_pgd = xen_make_pgd, + +#ifdef CONFIG_X86_PAE + .set_pte_atomic = xen_set_pte_atomic, + .set_pte_present = xen_set_pte_at, + .set_pud = xen_set_pud, + .pte_clear = xen_pte_clear, + .pmd_clear = xen_pmd_clear, + + .make_pmd = xen_make_pmd, + .pmd_val = xen_pmd_val, +#endif /* PAE */ + + .activate_mm = xen_activate_mm, + .dup_mmap = xen_dup_mmap, + .exit_mmap = xen_exit_mmap, + + .set_lazy_mode = xen_set_lazy_mode, +}; + +#ifdef CONFIG_SMP +static const struct smp_ops xen_smp_ops __initdata = { + .smp_prepare_boot_cpu = xen_smp_prepare_boot_cpu, + .smp_prepare_cpus = xen_smp_prepare_cpus, + .cpu_up = xen_cpu_up, + .smp_cpus_done = xen_smp_cpus_done, + + .smp_send_stop = xen_smp_send_stop, + .smp_send_reschedule = xen_smp_send_reschedule, + .smp_call_function_mask = xen_smp_call_function_mask, +}; +#endif /* CONFIG_SMP */ + +static void xen_reboot(int reason) +{ +#ifdef CONFIG_SMP + smp_send_stop(); +#endif + + if (HYPERVISOR_sched_op(SCHEDOP_shutdown, reason)) + BUG(); +} + +static void xen_restart(char *msg) +{ + xen_reboot(SHUTDOWN_reboot); +} + +static void xen_emergency_restart(void) +{ + xen_reboot(SHUTDOWN_reboot); +} + +static void xen_machine_halt(void) +{ + xen_reboot(SHUTDOWN_poweroff); +} + +static void xen_crash_shutdown(struct pt_regs *regs) +{ + xen_reboot(SHUTDOWN_crash); +} + +static const struct machine_ops __initdata xen_machine_ops = { + .restart = xen_restart, + .halt = xen_machine_halt, + .power_off = xen_machine_halt, + .shutdown = xen_machine_halt, + .crash_shutdown = xen_crash_shutdown, + .emergency_restart = xen_emergency_restart, +}; + + +/* First C function to be called on Xen boot */ +asmlinkage void __init xen_start_kernel(void) +{ + pgd_t *pgd; + + if (!xen_start_info) + return; + + BUG_ON(memcmp(xen_start_info->magic, "xen-3.0", 7) != 0); + + /* Install Xen paravirt ops */ + paravirt_ops = xen_paravirt_ops; + machine_ops = xen_machine_ops; + +#ifdef CONFIG_SMP + smp_ops = xen_smp_ops; +#endif + + xen_setup_features(); + + /* Get mfn list */ + if (!xen_feature(XENFEAT_auto_translated_physmap)) + phys_to_machine_mapping = (unsigned long *)xen_start_info->mfn_list; + + pgd = (pgd_t *)xen_start_info->pt_base; + + init_pg_tables_end = __pa(pgd) + xen_start_info->nr_pt_frames*PAGE_SIZE; + + init_mm.pgd = pgd; /* use the Xen pagetables to start */ + + /* keep using Xen gdt for now; no urgent need to change it */ + + x86_write_percpu(xen_cr3, __pa(pgd)); + +#ifdef CONFIG_SMP + /* Don't do the full vcpu_info placement stuff until we have a + possible map. */ + per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0]; +#else + /* May as well do it now, since there's no good time to call + it later on UP. */ + xen_setup_vcpu_info_placement(); +#endif + + paravirt_ops.kernel_rpl = 1; + if (xen_feature(XENFEAT_supervisor_mode_kernel)) + paravirt_ops.kernel_rpl = 0; + + /* set the limit of our address space */ + reserve_top_address(-HYPERVISOR_VIRT_START + 2 * PAGE_SIZE); + + /* set up basic CPUID stuff */ + cpu_detect(&new_cpu_data); + new_cpu_data.hard_math = 1; + new_cpu_data.x86_capability[0] = cpuid_edx(1); + + /* Poke various useful things into boot_params */ + LOADER_TYPE = (9 << 4) | 0; + INITRD_START = xen_start_info->mod_start ? __pa(xen_start_info->mod_start) : 0; + INITRD_SIZE = xen_start_info->mod_len; + + /* Start the world */ + start_kernel(); +} diff --git a/arch/i386/xen/events.c b/arch/i386/xen/events.c new file mode 100644 index 000000000000..8904acc20f8c --- /dev/null +++ b/arch/i386/xen/events.c @@ -0,0 +1,590 @@ +/* + * Xen event channels + * + * Xen models interrupts with abstract event channels. Because each + * domain gets 1024 event channels, but NR_IRQ is not that large, we + * must dynamically map irqs<->event channels. The event channels + * interface with the rest of the kernel by defining a xen interrupt + * chip. When an event is recieved, it is mapped to an irq and sent + * through the normal interrupt processing path. + * + * There are four kinds of events which can be mapped to an event + * channel: + * + * 1. Inter-domain notifications. This includes all the virtual + * device events, since they're driven by front-ends in another domain + * (typically dom0). + * 2. VIRQs, typically used for timers. These are per-cpu events. + * 3. IPIs. + * 4. Hardware interrupts. Not supported at present. + * + * Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007 + */ + +#include <linux/linkage.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/module.h> +#include <linux/string.h> + +#include <asm/ptrace.h> +#include <asm/irq.h> +#include <asm/sync_bitops.h> +#include <asm/xen/hypercall.h> + +#include <xen/events.h> +#include <xen/interface/xen.h> +#include <xen/interface/event_channel.h> + +#include "xen-ops.h" + +/* + * This lock protects updates to the following mapping and reference-count + * arrays. The lock does not need to be acquired to read the mapping tables. + */ +static DEFINE_SPINLOCK(irq_mapping_update_lock); + +/* IRQ <-> VIRQ mapping. */ +static DEFINE_PER_CPU(int, virq_to_irq[NR_VIRQS]) = {[0 ... NR_VIRQS-1] = -1}; + +/* IRQ <-> IPI mapping */ +static DEFINE_PER_CPU(int, ipi_to_irq[XEN_NR_IPIS]) = {[0 ... XEN_NR_IPIS-1] = -1}; + +/* Packed IRQ information: binding type, sub-type index, and event channel. */ +struct packed_irq +{ + unsigned short evtchn; + unsigned char index; + unsigned char type; +}; + +static struct packed_irq irq_info[NR_IRQS]; + +/* Binding types. */ +enum { + IRQT_UNBOUND, + IRQT_PIRQ, + IRQT_VIRQ, + IRQT_IPI, + IRQT_EVTCHN +}; + +/* Convenient shorthand for packed representation of an unbound IRQ. */ +#define IRQ_UNBOUND mk_irq_info(IRQT_UNBOUND, 0, 0) + +static int evtchn_to_irq[NR_EVENT_CHANNELS] = { + [0 ... NR_EVENT_CHANNELS-1] = -1 +}; +static unsigned long cpu_evtchn_mask[NR_CPUS][NR_EVENT_CHANNELS/BITS_PER_LONG]; +static u8 cpu_evtchn[NR_EVENT_CHANNELS]; + +/* Reference counts for bindings to IRQs. */ +static int irq_bindcount[NR_IRQS]; + +/* Xen will never allocate port zero for any purpose. */ +#define VALID_EVTCHN(chn) ((chn) != 0) + +/* + * Force a proper event-channel callback from Xen after clearing the + * callback mask. We do this in a very simple manner, by making a call + * down into Xen. The pending flag will be checked by Xen on return. + */ +void force_evtchn_callback(void) +{ + (void)HYPERVISOR_xen_version(0, NULL); +} +EXPORT_SYMBOL_GPL(force_evtchn_callback); + +static struct irq_chip xen_dynamic_chip; + +/* Constructor for packed IRQ information. */ +static inline struct packed_irq mk_irq_info(u32 type, u32 index, u32 evtchn) +{ + return (struct packed_irq) { evtchn, index, type }; +} + +/* + * Accessors for packed IRQ information. + */ +static inline unsigned int evtchn_from_irq(int irq) +{ + return irq_info[irq].evtchn; +} + +static inline unsigned int index_from_irq(int irq) +{ + return irq_info[irq].index; +} + +static inline unsigned int type_from_irq(int irq) +{ + return irq_info[irq].type; +} + +static inline unsigned long active_evtchns(unsigned int cpu, + struct shared_info *sh, + unsigned int idx) +{ + return (sh->evtchn_pending[idx] & + cpu_evtchn_mask[cpu][idx] & + ~sh->evtchn_mask[idx]); +} + +static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu) +{ + int irq = evtchn_to_irq[chn]; + + BUG_ON(irq == -1); +#ifdef CONFIG_SMP + irq_desc[irq].affinity = cpumask_of_cpu(cpu); +#endif + + __clear_bit(chn, cpu_evtchn_mask[cpu_evtchn[chn]]); + __set_bit(chn, cpu_evtchn_mask[cpu]); + + cpu_evtchn[chn] = cpu; +} + +static void init_evtchn_cpu_bindings(void) +{ +#ifdef CONFIG_SMP + int i; + /* By default all event channels notify CPU#0. */ + for (i = 0; i < NR_IRQS; i++) + irq_desc[i].affinity = cpumask_of_cpu(0); +#endif + + memset(cpu_evtchn, 0, sizeof(cpu_evtchn)); + memset(cpu_evtchn_mask[0], ~0, sizeof(cpu_evtchn_mask[0])); +} + +static inline unsigned int cpu_from_evtchn(unsigned int evtchn) +{ + return cpu_evtchn[evtchn]; +} + +static inline void clear_evtchn(int port) +{ + struct shared_info *s = HYPERVISOR_shared_info; + sync_clear_bit(port, &s->evtchn_pending[0]); +} + +static inline void set_evtchn(int port) +{ + struct shared_info *s = HYPERVISOR_shared_info; + sync_set_bit(port, &s->evtchn_pending[0]); +} + + +/** + * notify_remote_via_irq - send event to remote end of event channel via irq + * @irq: irq of event channel to send event to + * + * Unlike notify_remote_via_evtchn(), this is safe to use across + * save/restore. Notifications on a broken connection are silently + * dropped. + */ +void notify_remote_via_irq(int irq) +{ + int evtchn = evtchn_from_irq(irq); + + if (VALID_EVTCHN(evtchn)) + notify_remote_via_evtchn(evtchn); +} +EXPORT_SYMBOL_GPL(notify_remote_via_irq); + +static void mask_evtchn(int port) +{ + struct shared_info *s = HYPERVISOR_shared_info; + sync_set_bit(port, &s->evtchn_mask[0]); +} + +static void unmask_evtchn(int port) +{ + struct shared_info *s = HYPERVISOR_shared_info; + unsigned int cpu = get_cpu(); + + BUG_ON(!irqs_disabled()); + + /* Slow path (hypercall) if this is a non-local port. */ + if (unlikely(cpu != cpu_from_evtchn(port))) { + struct evtchn_unmask unmask = { .port = port }; + (void)HYPERVISOR_event_channel_op(EVTCHNOP_unmask, &unmask); + } else { + struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu); + + sync_clear_bit(port, &s->evtchn_mask[0]); + + /* + * The following is basically the equivalent of + * 'hw_resend_irq'. Just like a real IO-APIC we 'lose + * the interrupt edge' if the channel is masked. + */ + if (sync_test_bit(port, &s->evtchn_pending[0]) && + !sync_test_and_set_bit(port / BITS_PER_LONG, + &vcpu_info->evtchn_pending_sel)) + vcpu_info->evtchn_upcall_pending = 1; + } + + put_cpu(); +} + +static int find_unbound_irq(void) +{ + int irq; + + /* Only allocate from dynirq range */ + for (irq = 0; irq < NR_IRQS; irq++) + if (irq_bindcount[irq] == 0) + break; + + if (irq == NR_IRQS) + panic("No available IRQ to bind to: increase NR_IRQS!\n"); + + return irq; +} + +int bind_evtchn_to_irq(unsigned int evtchn) +{ + int irq; + + spin_lock(&irq_mapping_update_lock); + + irq = evtchn_to_irq[evtchn]; + + if (irq == -1) { + irq = find_unbound_irq(); + + dynamic_irq_init(irq); + set_irq_chip_and_handler_name(irq, &xen_dynamic_chip, + handle_level_irq, "event"); + + evtchn_to_irq[evtchn] = irq; + irq_info[irq] = mk_irq_info(IRQT_EVTCHN, 0, evtchn); + } + + irq_bindcount[irq]++; + + spin_unlock(&irq_mapping_update_lock); + + return irq; +} +EXPORT_SYMBOL_GPL(bind_evtchn_to_irq); + +static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu) +{ + struct evtchn_bind_ipi bind_ipi; + int evtchn, irq; + + spin_lock(&irq_mapping_update_lock); + + irq = per_cpu(ipi_to_irq, cpu)[ipi]; + if (irq == -1) { + irq = find_unbound_irq(); + if (irq < 0) + goto out; + + dynamic_irq_init(irq); + set_irq_chip_and_handler_name(irq, &xen_dynamic_chip, + handle_level_irq, "ipi"); + + bind_ipi.vcpu = cpu; + if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_ipi, + &bind_ipi) != 0) + BUG(); + evtchn = bind_ipi.port; + + evtchn_to_irq[evtchn] = irq; + irq_info[irq] = mk_irq_info(IRQT_IPI, ipi, evtchn); + + per_cpu(ipi_to_irq, cpu)[ipi] = irq; + + bind_evtchn_to_cpu(evtchn, cpu); + } + + irq_bindcount[irq]++; + + out: + spin_unlock(&irq_mapping_update_lock); + return irq; +} + + +static int bind_virq_to_irq(unsigned int virq, unsigned int cpu) +{ + struct evtchn_bind_virq bind_virq; + int evtchn, irq; + + spin_lock(&irq_mapping_update_lock); + + irq = per_cpu(virq_to_irq, cpu)[virq]; + + if (irq == -1) { + bind_virq.virq = virq; + bind_virq.vcpu = cpu; + if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_virq, + &bind_virq) != 0) + BUG(); + evtchn = bind_virq.port; + + irq = find_unbound_irq(); + + dynamic_irq_init(irq); + set_irq_chip_and_handler_name(irq, &xen_dynamic_chip, + handle_level_irq, "virq"); + + evtchn_to_irq[evtchn] = irq; + irq_info[irq] = mk_irq_info(IRQT_VIRQ, virq, evtchn); + + per_cpu(virq_to_irq, cpu)[virq] = irq; + + bind_evtchn_to_cpu(evtchn, cpu); + } + + irq_bindcount[irq]++; + + spin_unlock(&irq_mapping_update_lock); + + return irq; +} + +static void unbind_from_irq(unsigned int irq) +{ + struct evtchn_close close; + int evtchn = evtchn_from_irq(irq); + + spin_lock(&irq_mapping_update_lock); + + if (VALID_EVTCHN(evtchn) && (--irq_bindcount[irq] == 0)) { + close.port = evtchn; + if (HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0) + BUG(); + + switch (type_from_irq(irq)) { + case IRQT_VIRQ: + per_cpu(virq_to_irq, cpu_from_evtchn(evtchn)) + [index_from_irq(irq)] = -1; + break; + default: + break; + } + + /* Closed ports are implicitly re-bound to VCPU0. */ + bind_evtchn_to_cpu(evtchn, 0); + + evtchn_to_irq[evtchn] = -1; + irq_info[irq] = IRQ_UNBOUND; + + dynamic_irq_init(irq); + } + + spin_unlock(&irq_mapping_update_lock); +} + +int bind_evtchn_to_irqhandler(unsigned int evtchn, + irqreturn_t (*handler)(int, void *), + unsigned long irqflags, + const char *devname, void *dev_id) +{ + unsigned int irq; + int retval; + + irq = bind_evtchn_to_irq(evtchn); + retval = request_irq(irq, handler, irqflags, devname, dev_id); + if (retval != 0) { + unbind_from_irq(irq); + return retval; + } + + return irq; +} +EXPORT_SYMBOL_GPL(bind_evtchn_to_irqhandler); + +int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu, + irqreturn_t (*handler)(int, void *), + unsigned long irqflags, const char *devname, void *dev_id) +{ + unsigned int irq; + int retval; + + irq = bind_virq_to_irq(virq, cpu); + retval = request_irq(irq, handler, irqflags, devname, dev_id); + if (retval != 0) { + unbind_from_irq(irq); + return retval; + } + + return irq; +} +EXPORT_SYMBOL_GPL(bind_virq_to_irqhandler); + +int bind_ipi_to_irqhandler(enum ipi_vector ipi, + unsigned int cpu, + irq_handler_t handler, + unsigned long irqflags, + const char *devname, + void *dev_id) +{ + int irq, retval; + + irq = bind_ipi_to_irq(ipi, cpu); + if (irq < 0) + return irq; + + retval = request_irq(irq, handler, irqflags, devname, dev_id); + if (retval != 0) { + unbind_from_irq(irq); + return retval; + } + + return irq; +} + +void unbind_from_irqhandler(unsigned int irq, void *dev_id) +{ + free_irq(irq, dev_id); + unbind_from_irq(irq); +} +EXPORT_SYMBOL_GPL(unbind_from_irqhandler); + +void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector) +{ + int irq = per_cpu(ipi_to_irq, cpu)[vector]; + BUG_ON(irq < 0); + notify_remote_via_irq(irq); +} + + +/* + * Search the CPUs pending events bitmasks. For each one found, map + * the event number to an irq, and feed it into do_IRQ() for + * handling. + * + * Xen uses a two-level bitmap to speed searching. The first level is + * a bitset of words which contain pending event bits. The second + * level is a bitset of pending events themselves. + */ +fastcall void xen_evtchn_do_upcall(struct pt_regs *regs) +{ + int cpu = get_cpu(); + struct shared_info *s = HYPERVISOR_shared_info; + struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu); + unsigned long pending_words; + + vcpu_info->evtchn_upcall_pending = 0; + + /* NB. No need for a barrier here -- XCHG is a barrier on x86. */ + pending_words = xchg(&vcpu_info->evtchn_pending_sel, 0); + while (pending_words != 0) { + unsigned long pending_bits; + int word_idx = __ffs(pending_words); + pending_words &= ~(1UL << word_idx); + + while ((pending_bits = active_evtchns(cpu, s, word_idx)) != 0) { + int bit_idx = __ffs(pending_bits); + int port = (word_idx * BITS_PER_LONG) + bit_idx; + int irq = evtchn_to_irq[port]; + + if (irq != -1) { + regs->orig_eax = ~irq; + do_IRQ(regs); + } + } + } + + put_cpu(); +} + +/* Rebind an evtchn so that it gets delivered to a specific cpu */ +static void rebind_irq_to_cpu(unsigned irq, unsigned tcpu) +{ + struct evtchn_bind_vcpu bind_vcpu; + int evtchn = evtchn_from_irq(irq); + + if (!VALID_EVTCHN(evtchn)) + return; + + /* Send future instances of this interrupt to other vcpu. */ + bind_vcpu.port = evtchn; + bind_vcpu.vcpu = tcpu; + + /* + * If this fails, it usually just indicates that we're dealing with a + * virq or IPI channel, which don't actually need to be rebound. Ignore + * it, but don't do the xenlinux-level rebind in that case. + */ + if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_vcpu, &bind_vcpu) >= 0) + bind_evtchn_to_cpu(evtchn, tcpu); +} + + +static void set_affinity_irq(unsigned irq, cpumask_t dest) +{ + unsigned tcpu = first_cpu(dest); + rebind_irq_to_cpu(irq, tcpu); +} + +static void enable_dynirq(unsigned int irq) +{ + int evtchn = evtchn_from_irq(irq); + + if (VALID_EVTCHN(evtchn)) + unmask_evtchn(evtchn); +} + +static void disable_dynirq(unsigned int irq) +{ + int evtchn = evtchn_from_irq(irq); + + if (VALID_EVTCHN(evtchn)) + mask_evtchn(evtchn); +} + +static void ack_dynirq(unsigned int irq) +{ + int evtchn = evtchn_from_irq(irq); + + move_native_irq(irq); + + if (VALID_EVTCHN(evtchn)) + clear_evtchn(evtchn); +} + +static int retrigger_dynirq(unsigned int irq) +{ + int evtchn = evtchn_from_irq(irq); + int ret = 0; + + if (VALID_EVTCHN(evtchn)) { + set_evtchn(evtchn); + ret = 1; + } + + return ret; +} + +static struct irq_chip xen_dynamic_chip __read_mostly = { + .name = "xen-dyn", + .mask = disable_dynirq, + .unmask = enable_dynirq, + .ack = ack_dynirq, + .set_affinity = set_affinity_irq, + .retrigger = retrigger_dynirq, +}; + +void __init xen_init_IRQ(void) +{ + int i; + + init_evtchn_cpu_bindings(); + + /* No event channels are 'live' right now. */ + for (i = 0; i < NR_EVENT_CHANNELS; i++) + mask_evtchn(i); + + /* Dynamic IRQ space is currently unbound. Zero the refcnts. */ + for (i = 0; i < NR_IRQS; i++) + irq_bindcount[i] = 0; + + irq_ctx_init(smp_processor_id()); +} diff --git a/arch/i386/xen/features.c b/arch/i386/xen/features.c new file mode 100644 index 000000000000..0707714e40d6 --- /dev/null +++ b/arch/i386/xen/features.c @@ -0,0 +1,29 @@ +/****************************************************************************** + * features.c + * + * Xen feature flags. + * + * Copyright (c) 2006, Ian Campbell, XenSource Inc. + */ +#include <linux/types.h> +#include <linux/cache.h> +#include <linux/module.h> +#include <asm/xen/hypervisor.h> +#include <xen/features.h> + +u8 xen_features[XENFEAT_NR_SUBMAPS * 32] __read_mostly; +EXPORT_SYMBOL_GPL(xen_features); + +void xen_setup_features(void) +{ + struct xen_feature_info fi; + int i, j; + + for (i = 0; i < XENFEAT_NR_SUBMAPS; i++) { + fi.submap_idx = i; + if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0) + break; + for (j = 0; j < 32; j++) + xen_features[i * 32 + j] = !!(fi.submap & 1<<j); + } +} diff --git a/arch/i386/xen/manage.c b/arch/i386/xen/manage.c new file mode 100644 index 000000000000..aa7af9e6abc0 --- /dev/null +++ b/arch/i386/xen/manage.c @@ -0,0 +1,143 @@ +/* + * Handle extern requests for shutdown, reboot and sysrq + */ +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/reboot.h> +#include <linux/sysrq.h> + +#include <xen/xenbus.h> + +#define SHUTDOWN_INVALID -1 +#define SHUTDOWN_POWEROFF 0 +#define SHUTDOWN_SUSPEND 2 +/* Code 3 is SHUTDOWN_CRASH, which we don't use because the domain can only + * report a crash, not be instructed to crash! + * HALT is the same as POWEROFF, as far as we're concerned. The tools use + * the distinction when we return the reason code to them. + */ +#define SHUTDOWN_HALT 4 + +/* Ignore multiple shutdown requests. */ +static int shutting_down = SHUTDOWN_INVALID; + +static void shutdown_handler(struct xenbus_watch *watch, + const char **vec, unsigned int len) +{ + char *str; + struct xenbus_transaction xbt; + int err; + + if (shutting_down != SHUTDOWN_INVALID) + return; + + again: + err = xenbus_transaction_start(&xbt); + if (err) + return; + + str = (char *)xenbus_read(xbt, "control", "shutdown", NULL); + /* Ignore read errors and empty reads. */ + if (XENBUS_IS_ERR_READ(str)) { + xenbus_transaction_end(xbt, 1); + return; + } + + xenbus_write(xbt, "control", "shutdown", ""); + + err = xenbus_transaction_end(xbt, 0); + if (err == -EAGAIN) { + kfree(str); + goto again; + } + + if (strcmp(str, "poweroff") == 0 || + strcmp(str, "halt") == 0) + orderly_poweroff(false); + else if (strcmp(str, "reboot") == 0) + ctrl_alt_del(); + else { + printk(KERN_INFO "Ignoring shutdown request: %s\n", str); + shutting_down = SHUTDOWN_INVALID; + } + + kfree(str); +} + +static void sysrq_handler(struct xenbus_watch *watch, const char **vec, + unsigned int len) +{ + char sysrq_key = '\0'; + struct xenbus_transaction xbt; + int err; + + again: + err = xenbus_transaction_start(&xbt); + if (err) + return; + if (!xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key)) { + printk(KERN_ERR "Unable to read sysrq code in " + "control/sysrq\n"); + xenbus_transaction_end(xbt, 1); + return; + } + + if (sysrq_key != '\0') + xenbus_printf(xbt, "control", "sysrq", "%c", '\0'); + + err = xenbus_transaction_end(xbt, 0); + if (err == -EAGAIN) + goto again; + + if (sysrq_key != '\0') + handle_sysrq(sysrq_key, NULL); +} + +static struct xenbus_watch shutdown_watch = { + .node = "control/shutdown", + .callback = shutdown_handler +}; + +static struct xenbus_watch sysrq_watch = { + .node = "control/sysrq", + .callback = sysrq_handler +}; + +static int setup_shutdown_watcher(void) +{ + int err; + + err = register_xenbus_watch(&shutdown_watch); + if (err) { + printk(KERN_ERR "Failed to set shutdown watcher\n"); + return err; + } + + err = register_xenbus_watch(&sysrq_watch); + if (err) { + printk(KERN_ERR "Failed to set sysrq watcher\n"); + return err; + } + + return 0; +} + +static int shutdown_event(struct notifier_block *notifier, + unsigned long event, + void *data) +{ + setup_shutdown_watcher(); + return NOTIFY_DONE; +} + +static int __init setup_shutdown_event(void) +{ + static struct notifier_block xenstore_notifier = { + .notifier_call = shutdown_event + }; + register_xenstore_notifier(&xenstore_notifier); + + return 0; +} + +subsys_initcall(setup_shutdown_event); diff --git a/arch/i386/xen/mmu.c b/arch/i386/xen/mmu.c new file mode 100644 index 000000000000..4ae038aa6c24 --- /dev/null +++ b/arch/i386/xen/mmu.c @@ -0,0 +1,564 @@ +/* + * Xen mmu operations + * + * This file contains the various mmu fetch and update operations. + * The most important job they must perform is the mapping between the + * domain's pfn and the overall machine mfns. + * + * Xen allows guests to directly update the pagetable, in a controlled + * fashion. In other words, the guest modifies the same pagetable + * that the CPU actually uses, which eliminates the overhead of having + * a separate shadow pagetable. + * + * In order to allow this, it falls on the guest domain to map its + * notion of a "physical" pfn - which is just a domain-local linear + * address - into a real "machine address" which the CPU's MMU can + * use. + * + * A pgd_t/pmd_t/pte_t will typically contain an mfn, and so can be + * inserted directly into the pagetable. When creating a new + * pte/pmd/pgd, it converts the passed pfn into an mfn. Conversely, + * when reading the content back with __(pgd|pmd|pte)_val, it converts + * the mfn back into a pfn. + * + * The other constraint is that all pages which make up a pagetable + * must be mapped read-only in the guest. This prevents uncontrolled + * guest updates to the pagetable. Xen strictly enforces this, and + * will disallow any pagetable update which will end up mapping a + * pagetable page RW, and will disallow using any writable page as a + * pagetable. + * + * Naively, when loading %cr3 with the base of a new pagetable, Xen + * would need to validate the whole pagetable before going on. + * Naturally, this is quite slow. The solution is to "pin" a + * pagetable, which enforces all the constraints on the pagetable even + * when it is not actively in use. This menas that Xen can be assured + * that it is still valid when you do load it into %cr3, and doesn't + * need to revalidate it. + * + * Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007 + */ +#include <linux/sched.h> +#include <linux/highmem.h> +#include <linux/bug.h> +#include <linux/sched.h> + +#include <asm/pgtable.h> +#include <asm/tlbflush.h> +#include <asm/mmu_context.h> +#include <asm/paravirt.h> + +#include <asm/xen/hypercall.h> +#include <asm/xen/hypervisor.h> + +#include <xen/page.h> +#include <xen/interface/xen.h> + +#include "multicalls.h" +#include "mmu.h" + +xmaddr_t arbitrary_virt_to_machine(unsigned long address) +{ + pte_t *pte = lookup_address(address); + unsigned offset = address & PAGE_MASK; + + BUG_ON(pte == NULL); + + return XMADDR((pte_mfn(*pte) << PAGE_SHIFT) + offset); +} + +void make_lowmem_page_readonly(void *vaddr) +{ + pte_t *pte, ptev; + unsigned long address = (unsigned long)vaddr; + + pte = lookup_address(address); + BUG_ON(pte == NULL); + + ptev = pte_wrprotect(*pte); + + if (HYPERVISOR_update_va_mapping(address, ptev, 0)) + BUG(); +} + +void make_lowmem_page_readwrite(void *vaddr) +{ + pte_t *pte, ptev; + unsigned long address = (unsigned long)vaddr; + + pte = lookup_address(address); + BUG_ON(pte == NULL); + + ptev = pte_mkwrite(*pte); + + if (HYPERVISOR_update_va_mapping(address, ptev, 0)) + BUG(); +} + + +void xen_set_pmd(pmd_t *ptr, pmd_t val) +{ + struct multicall_space mcs; + struct mmu_update *u; + + preempt_disable(); + + mcs = xen_mc_entry(sizeof(*u)); + u = mcs.args; + u->ptr = virt_to_machine(ptr).maddr; + u->val = pmd_val_ma(val); + MULTI_mmu_update(mcs.mc, u, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_MMU); + + preempt_enable(); +} + +/* + * Associate a virtual page frame with a given physical page frame + * and protection flags for that frame. + */ +void set_pte_mfn(unsigned long vaddr, unsigned long mfn, pgprot_t flags) +{ + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + + pgd = swapper_pg_dir + pgd_index(vaddr); + if (pgd_none(*pgd)) { + BUG(); + return; + } + pud = pud_offset(pgd, vaddr); + if (pud_none(*pud)) { + BUG(); + return; + } + pmd = pmd_offset(pud, vaddr); + if (pmd_none(*pmd)) { + BUG(); + return; + } + pte = pte_offset_kernel(pmd, vaddr); + /* <mfn,flags> stored as-is, to permit clearing entries */ + xen_set_pte(pte, mfn_pte(mfn, flags)); + + /* + * It's enough to flush this one mapping. + * (PGE mappings get flushed as well) + */ + __flush_tlb_one(vaddr); +} + +void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval) +{ + if (mm == current->mm || mm == &init_mm) { + if (xen_get_lazy_mode() == PARAVIRT_LAZY_MMU) { + struct multicall_space mcs; + mcs = xen_mc_entry(0); + + MULTI_update_va_mapping(mcs.mc, addr, pteval, 0); + xen_mc_issue(PARAVIRT_LAZY_MMU); + return; + } else + if (HYPERVISOR_update_va_mapping(addr, pteval, 0) == 0) + return; + } + xen_set_pte(ptep, pteval); +} + +#ifdef CONFIG_X86_PAE +void xen_set_pud(pud_t *ptr, pud_t val) +{ + struct multicall_space mcs; + struct mmu_update *u; + + preempt_disable(); + + mcs = xen_mc_entry(sizeof(*u)); + u = mcs.args; + u->ptr = virt_to_machine(ptr).maddr; + u->val = pud_val_ma(val); + MULTI_mmu_update(mcs.mc, u, 1, NULL, DOMID_SELF); + + xen_mc_issue(PARAVIRT_LAZY_MMU); + + preempt_enable(); +} + +void xen_set_pte(pte_t *ptep, pte_t pte) +{ + ptep->pte_high = pte.pte_high; + smp_wmb(); + ptep->pte_low = pte.pte_low; +} + +void xen_set_pte_atomic(pte_t *ptep, pte_t pte) +{ + set_64bit((u64 *)ptep, pte_val_ma(pte)); +} + +void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) +{ + ptep->pte_low = 0; + smp_wmb(); /* make sure low gets written first */ + ptep->pte_high = 0; +} + +void xen_pmd_clear(pmd_t *pmdp) +{ + xen_set_pmd(pmdp, __pmd(0)); +} + +unsigned long long xen_pte_val(pte_t pte) +{ + unsigned long long ret = 0; + + if (pte.pte_low) { + ret = ((unsigned long long)pte.pte_high << 32) | pte.pte_low; + ret = machine_to_phys(XMADDR(ret)).paddr | 1; + } + + return ret; +} + +unsigned long long xen_pmd_val(pmd_t pmd) +{ + unsigned long long ret = pmd.pmd; + if (ret) + ret = machine_to_phys(XMADDR(ret)).paddr | 1; + return ret; +} + +unsigned long long xen_pgd_val(pgd_t pgd) +{ + unsigned long long ret = pgd.pgd; + if (ret) + ret = machine_to_phys(XMADDR(ret)).paddr | 1; + return ret; +} + +pte_t xen_make_pte(unsigned long long pte) +{ + if (pte & 1) + pte = phys_to_machine(XPADDR(pte)).maddr; + + return (pte_t){ pte, pte >> 32 }; +} + +pmd_t xen_make_pmd(unsigned long long pmd) +{ + if (pmd & 1) + pmd = phys_to_machine(XPADDR(pmd)).maddr; + + return (pmd_t){ pmd }; +} + +pgd_t xen_make_pgd(unsigned long long pgd) +{ + if (pgd & _PAGE_PRESENT) + pgd = phys_to_machine(XPADDR(pgd)).maddr; + + return (pgd_t){ pgd }; +} +#else /* !PAE */ +void xen_set_pte(pte_t *ptep, pte_t pte) +{ + *ptep = pte; +} + +unsigned long xen_pte_val(pte_t pte) +{ + unsigned long ret = pte.pte_low; + + if (ret & _PAGE_PRESENT) + ret = machine_to_phys(XMADDR(ret)).paddr; + + return ret; +} + +unsigned long xen_pgd_val(pgd_t pgd) +{ + unsigned long ret = pgd.pgd; + if (ret) + ret = machine_to_phys(XMADDR(ret)).paddr | 1; + return ret; +} + +pte_t xen_make_pte(unsigned long pte) +{ + if (pte & _PAGE_PRESENT) + pte = phys_to_machine(XPADDR(pte)).maddr; + + return (pte_t){ pte }; +} + +pgd_t xen_make_pgd(unsigned long pgd) +{ + if (pgd & _PAGE_PRESENT) + pgd = phys_to_machine(XPADDR(pgd)).maddr; + + return (pgd_t){ pgd }; +} +#endif /* CONFIG_X86_PAE */ + + + +/* + (Yet another) pagetable walker. This one is intended for pinning a + pagetable. This means that it walks a pagetable and calls the + callback function on each page it finds making up the page table, + at every level. It walks the entire pagetable, but it only bothers + pinning pte pages which are below pte_limit. In the normal case + this will be TASK_SIZE, but at boot we need to pin up to + FIXADDR_TOP. But the important bit is that we don't pin beyond + there, because then we start getting into Xen's ptes. +*/ +static int pgd_walk(pgd_t *pgd_base, int (*func)(struct page *, unsigned), + unsigned long limit) +{ + pgd_t *pgd = pgd_base; + int flush = 0; + unsigned long addr = 0; + unsigned long pgd_next; + + BUG_ON(limit > FIXADDR_TOP); + + if (xen_feature(XENFEAT_auto_translated_physmap)) + return 0; + + for (; addr != FIXADDR_TOP; pgd++, addr = pgd_next) { + pud_t *pud; + unsigned long pud_limit, pud_next; + + pgd_next = pud_limit = pgd_addr_end(addr, FIXADDR_TOP); + + if (!pgd_val(*pgd)) + continue; + + pud = pud_offset(pgd, 0); + + if (PTRS_PER_PUD > 1) /* not folded */ + flush |= (*func)(virt_to_page(pud), 0); + + for (; addr != pud_limit; pud++, addr = pud_next) { + pmd_t *pmd; + unsigned long pmd_limit; + + pud_next = pud_addr_end(addr, pud_limit); + + if (pud_next < limit) + pmd_limit = pud_next; + else + pmd_limit = limit; + + if (pud_none(*pud)) + continue; + + pmd = pmd_offset(pud, 0); + + if (PTRS_PER_PMD > 1) /* not folded */ + flush |= (*func)(virt_to_page(pmd), 0); + + for (; addr != pmd_limit; pmd++) { + addr += (PAGE_SIZE * PTRS_PER_PTE); + if ((pmd_limit-1) < (addr-1)) { + addr = pmd_limit; + break; + } + + if (pmd_none(*pmd)) + continue; + + flush |= (*func)(pmd_page(*pmd), 0); + } + } + } + + flush |= (*func)(virt_to_page(pgd_base), UVMF_TLB_FLUSH); + + return flush; +} + +static int pin_page(struct page *page, unsigned flags) +{ + unsigned pgfl = test_and_set_bit(PG_pinned, &page->flags); + int flush; + + if (pgfl) + flush = 0; /* already pinned */ + else if (PageHighMem(page)) + /* kmaps need flushing if we found an unpinned + highpage */ + flush = 1; + else { + void *pt = lowmem_page_address(page); + unsigned long pfn = page_to_pfn(page); + struct multicall_space mcs = __xen_mc_entry(0); + + flush = 0; + + MULTI_update_va_mapping(mcs.mc, (unsigned long)pt, + pfn_pte(pfn, PAGE_KERNEL_RO), + flags); + } + + return flush; +} + +/* This is called just after a mm has been created, but it has not + been used yet. We need to make sure that its pagetable is all + read-only, and can be pinned. */ +void xen_pgd_pin(pgd_t *pgd) +{ + struct multicall_space mcs; + struct mmuext_op *op; + + xen_mc_batch(); + + if (pgd_walk(pgd, pin_page, TASK_SIZE)) { + /* re-enable interrupts for kmap_flush_unused */ + xen_mc_issue(0); + kmap_flush_unused(); + xen_mc_batch(); + } + + mcs = __xen_mc_entry(sizeof(*op)); + op = mcs.args; + +#ifdef CONFIG_X86_PAE + op->cmd = MMUEXT_PIN_L3_TABLE; +#else + op->cmd = MMUEXT_PIN_L2_TABLE; +#endif + op->arg1.mfn = pfn_to_mfn(PFN_DOWN(__pa(pgd))); + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF); + + xen_mc_issue(0); +} + +/* The init_mm pagetable is really pinned as soon as its created, but + that's before we have page structures to store the bits. So do all + the book-keeping now. */ +static __init int mark_pinned(struct page *page, unsigned flags) +{ + SetPagePinned(page); + return 0; +} + +void __init xen_mark_init_mm_pinned(void) +{ + pgd_walk(init_mm.pgd, mark_pinned, FIXADDR_TOP); +} + +static int unpin_page(struct page *page, unsigned flags) +{ + unsigned pgfl = test_and_clear_bit(PG_pinned, &page->flags); + + if (pgfl && !PageHighMem(page)) { + void *pt = lowmem_page_address(page); + unsigned long pfn = page_to_pfn(page); + struct multicall_space mcs = __xen_mc_entry(0); + + MULTI_update_va_mapping(mcs.mc, (unsigned long)pt, + pfn_pte(pfn, PAGE_KERNEL), + flags); + } + + return 0; /* never need to flush on unpin */ +} + +/* Release a pagetables pages back as normal RW */ +static void xen_pgd_unpin(pgd_t *pgd) +{ + struct mmuext_op *op; + struct multicall_space mcs; + + xen_mc_batch(); + + mcs = __xen_mc_entry(sizeof(*op)); + + op = mcs.args; + op->cmd = MMUEXT_UNPIN_TABLE; + op->arg1.mfn = pfn_to_mfn(PFN_DOWN(__pa(pgd))); + + MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF); + + pgd_walk(pgd, unpin_page, TASK_SIZE); + + xen_mc_issue(0); +} + +void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next) +{ + spin_lock(&next->page_table_lock); + xen_pgd_pin(next->pgd); + spin_unlock(&next->page_table_lock); +} + +void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm) +{ + spin_lock(&mm->page_table_lock); + xen_pgd_pin(mm->pgd); + spin_unlock(&mm->page_table_lock); +} + + +#ifdef CONFIG_SMP +/* Another cpu may still have their %cr3 pointing at the pagetable, so + we need to repoint it somewhere else before we can unpin it. */ +static void drop_other_mm_ref(void *info) +{ + struct mm_struct *mm = info; + + if (__get_cpu_var(cpu_tlbstate).active_mm == mm) + leave_mm(smp_processor_id()); +} + +static void drop_mm_ref(struct mm_struct *mm) +{ + if (current->active_mm == mm) { + if (current->mm == mm) + load_cr3(swapper_pg_dir); + else + leave_mm(smp_processor_id()); + } + + if (!cpus_empty(mm->cpu_vm_mask)) + xen_smp_call_function_mask(mm->cpu_vm_mask, drop_other_mm_ref, + mm, 1); +} +#else +static void drop_mm_ref(struct mm_struct *mm) +{ + if (current->active_mm == mm) + load_cr3(swapper_pg_dir); +} +#endif + +/* + * While a process runs, Xen pins its pagetables, which means that the + * hypervisor forces it to be read-only, and it controls all updates + * to it. This means that all pagetable updates have to go via the + * hypervisor, which is moderately expensive. + * + * Since we're pulling the pagetable down, we switch to use init_mm, + * unpin old process pagetable and mark it all read-write, which + * allows further operations on it to be simple memory accesses. + * + * The only subtle point is that another CPU may be still using the + * pagetable because of lazy tlb flushing. This means we need need to + * switch all CPUs off this pagetable before we can unpin it. + */ +void xen_exit_mmap(struct mm_struct *mm) +{ + get_cpu(); /* make sure we don't move around */ + drop_mm_ref(mm); + put_cpu(); + + spin_lock(&mm->page_table_lock); + xen_pgd_unpin(mm->pgd); + spin_unlock(&mm->page_table_lock); +} diff --git a/arch/i386/xen/mmu.h b/arch/i386/xen/mmu.h new file mode 100644 index 000000000000..c9ff27f3ac3a --- /dev/null +++ b/arch/i386/xen/mmu.h @@ -0,0 +1,60 @@ +#ifndef _XEN_MMU_H + +#include <linux/linkage.h> +#include <asm/page.h> + +/* + * Page-directory addresses above 4GB do not fit into architectural %cr3. + * When accessing %cr3, or equivalent field in vcpu_guest_context, guests + * must use the following accessor macros to pack/unpack valid MFNs. + * + * Note that Xen is using the fact that the pagetable base is always + * page-aligned, and putting the 12 MSB of the address into the 12 LSB + * of cr3. + */ +#define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20)) +#define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20)) + + +void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); + +void xen_set_pte(pte_t *ptep, pte_t pteval); +void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval); +void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval); + +void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next); +void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm); +void xen_exit_mmap(struct mm_struct *mm); + +void xen_pgd_pin(pgd_t *pgd); +//void xen_pgd_unpin(pgd_t *pgd); + +#ifdef CONFIG_X86_PAE +unsigned long long xen_pte_val(pte_t); +unsigned long long xen_pmd_val(pmd_t); +unsigned long long xen_pgd_val(pgd_t); + +pte_t xen_make_pte(unsigned long long); +pmd_t xen_make_pmd(unsigned long long); +pgd_t xen_make_pgd(unsigned long long); + +void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval); +void xen_set_pte_atomic(pte_t *ptep, pte_t pte); +void xen_set_pud(pud_t *ptr, pud_t val); +void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); +void xen_pmd_clear(pmd_t *pmdp); + + +#else +unsigned long xen_pte_val(pte_t); +unsigned long xen_pmd_val(pmd_t); +unsigned long xen_pgd_val(pgd_t); + +pte_t xen_make_pte(unsigned long); +pmd_t xen_make_pmd(unsigned long); +pgd_t xen_make_pgd(unsigned long); +#endif + +#endif /* _XEN_MMU_H */ diff --git a/arch/i386/xen/multicalls.c b/arch/i386/xen/multicalls.c new file mode 100644 index 000000000000..c837e8e463db --- /dev/null +++ b/arch/i386/xen/multicalls.c @@ -0,0 +1,90 @@ +/* + * Xen hypercall batching. + * + * Xen allows multiple hypercalls to be issued at once, using the + * multicall interface. This allows the cost of trapping into the + * hypervisor to be amortized over several calls. + * + * This file implements a simple interface for multicalls. There's a + * per-cpu buffer of outstanding multicalls. When you want to queue a + * multicall for issuing, you can allocate a multicall slot for the + * call and its arguments, along with storage for space which is + * pointed to by the arguments (for passing pointers to structures, + * etc). When the multicall is actually issued, all the space for the + * commands and allocated memory is freed for reuse. + * + * Multicalls are flushed whenever any of the buffers get full, or + * when explicitly requested. There's no way to get per-multicall + * return results back. It will BUG if any of the multicalls fail. + * + * Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007 + */ +#include <linux/percpu.h> +#include <linux/hardirq.h> + +#include <asm/xen/hypercall.h> + +#include "multicalls.h" + +#define MC_BATCH 32 +#define MC_ARGS (MC_BATCH * 16 / sizeof(u64)) + +struct mc_buffer { + struct multicall_entry entries[MC_BATCH]; + u64 args[MC_ARGS]; + unsigned mcidx, argidx; +}; + +static DEFINE_PER_CPU(struct mc_buffer, mc_buffer); +DEFINE_PER_CPU(unsigned long, xen_mc_irq_flags); + +void xen_mc_flush(void) +{ + struct mc_buffer *b = &__get_cpu_var(mc_buffer); + int ret = 0; + unsigned long flags; + + BUG_ON(preemptible()); + + /* Disable interrupts in case someone comes in and queues + something in the middle */ + local_irq_save(flags); + + if (b->mcidx) { + int i; + + if (HYPERVISOR_multicall(b->entries, b->mcidx) != 0) + BUG(); + for (i = 0; i < b->mcidx; i++) + if (b->entries[i].result < 0) + ret++; + b->mcidx = 0; + b->argidx = 0; + } else + BUG_ON(b->argidx != 0); + + local_irq_restore(flags); + + BUG_ON(ret); +} + +struct multicall_space __xen_mc_entry(size_t args) +{ + struct mc_buffer *b = &__get_cpu_var(mc_buffer); + struct multicall_space ret; + unsigned argspace = (args + sizeof(u64) - 1) / sizeof(u64); + + BUG_ON(preemptible()); + BUG_ON(argspace > MC_ARGS); + + if (b->mcidx == MC_BATCH || + (b->argidx + argspace) > MC_ARGS) + xen_mc_flush(); + + ret.mc = &b->entries[b->mcidx]; + b->mcidx++; + ret.args = &b->args[b->argidx]; + b->argidx += argspace; + + return ret; +} diff --git a/arch/i386/xen/multicalls.h b/arch/i386/xen/multicalls.h new file mode 100644 index 000000000000..e6f7530b156c --- /dev/null +++ b/arch/i386/xen/multicalls.h @@ -0,0 +1,45 @@ +#ifndef _XEN_MULTICALLS_H +#define _XEN_MULTICALLS_H + +#include "xen-ops.h" + +/* Multicalls */ +struct multicall_space +{ + struct multicall_entry *mc; + void *args; +}; + +/* Allocate room for a multicall and its args */ +struct multicall_space __xen_mc_entry(size_t args); + +DECLARE_PER_CPU(unsigned long, xen_mc_irq_flags); + +/* Call to start a batch of multiple __xen_mc_entry()s. Must be + paired with xen_mc_issue() */ +static inline void xen_mc_batch(void) +{ + /* need to disable interrupts until this entry is complete */ + local_irq_save(__get_cpu_var(xen_mc_irq_flags)); +} + +static inline struct multicall_space xen_mc_entry(size_t args) +{ + xen_mc_batch(); + return __xen_mc_entry(args); +} + +/* Flush all pending multicalls */ +void xen_mc_flush(void); + +/* Issue a multicall if we're not in a lazy mode */ +static inline void xen_mc_issue(unsigned mode) +{ + if ((xen_get_lazy_mode() & mode) == 0) + xen_mc_flush(); + + /* restore flags saved in xen_mc_batch */ + local_irq_restore(x86_read_percpu(xen_mc_irq_flags)); +} + +#endif /* _XEN_MULTICALLS_H */ diff --git a/arch/i386/xen/setup.c b/arch/i386/xen/setup.c new file mode 100644 index 000000000000..2fe6eac510f0 --- /dev/null +++ b/arch/i386/xen/setup.c @@ -0,0 +1,96 @@ +/* + * Machine specific setup for xen + * + * Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007 + */ + +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/pm.h> + +#include <asm/elf.h> +#include <asm/e820.h> +#include <asm/setup.h> +#include <asm/xen/hypervisor.h> +#include <asm/xen/hypercall.h> + +#include <xen/interface/physdev.h> +#include <xen/features.h> + +#include "xen-ops.h" + +/* These are code, but not functions. Defined in entry.S */ +extern const char xen_hypervisor_callback[]; +extern const char xen_failsafe_callback[]; + +unsigned long *phys_to_machine_mapping; +EXPORT_SYMBOL(phys_to_machine_mapping); + +/** + * machine_specific_memory_setup - Hook for machine specific memory setup. + **/ + +char * __init xen_memory_setup(void) +{ + unsigned long max_pfn = xen_start_info->nr_pages; + + e820.nr_map = 0; + add_memory_region(0, PFN_PHYS(max_pfn), E820_RAM); + + return "Xen"; +} + +static void xen_idle(void) +{ + local_irq_disable(); + + if (need_resched()) + local_irq_enable(); + else { + current_thread_info()->status &= ~TS_POLLING; + smp_mb__after_clear_bit(); + safe_halt(); + current_thread_info()->status |= TS_POLLING; + } +} + +void __init xen_arch_setup(void) +{ + struct physdev_set_iopl set_iopl; + int rc; + + HYPERVISOR_vm_assist(VMASST_CMD_enable, VMASST_TYPE_4gb_segments); + HYPERVISOR_vm_assist(VMASST_CMD_enable, VMASST_TYPE_writable_pagetables); + + if (!xen_feature(XENFEAT_auto_translated_physmap)) + HYPERVISOR_vm_assist(VMASST_CMD_enable, VMASST_TYPE_pae_extended_cr3); + + HYPERVISOR_set_callbacks(__KERNEL_CS, (unsigned long)xen_hypervisor_callback, + __KERNEL_CS, (unsigned long)xen_failsafe_callback); + + set_iopl.iopl = 1; + rc = HYPERVISOR_physdev_op(PHYSDEVOP_set_iopl, &set_iopl); + if (rc != 0) + printk(KERN_INFO "physdev_op failed %d\n", rc); + +#ifdef CONFIG_ACPI + if (!(xen_start_info->flags & SIF_INITDOMAIN)) { + printk(KERN_INFO "ACPI in unprivileged domain disabled\n"); + disable_acpi(); + } +#endif + + memcpy(boot_command_line, xen_start_info->cmd_line, + MAX_GUEST_CMDLINE > COMMAND_LINE_SIZE ? + COMMAND_LINE_SIZE : MAX_GUEST_CMDLINE); + + pm_idle = xen_idle; + +#ifdef CONFIG_SMP + /* fill cpus_possible with all available cpus */ + xen_fill_possible_map(); +#endif + + paravirt_disable_iospace(); +} diff --git a/arch/i386/xen/smp.c b/arch/i386/xen/smp.c new file mode 100644 index 000000000000..557b8e24706a --- /dev/null +++ b/arch/i386/xen/smp.c @@ -0,0 +1,404 @@ +/* + * Xen SMP support + * + * This file implements the Xen versions of smp_ops. SMP under Xen is + * very straightforward. Bringing a CPU up is simply a matter of + * loading its initial context and setting it running. + * + * IPIs are handled through the Xen event mechanism. + * + * Because virtual CPUs can be scheduled onto any real CPU, there's no + * useful topology information for the kernel to make use of. As a + * result, all CPUs are treated as if they're single-core and + * single-threaded. + * + * This does not handle HOTPLUG_CPU yet. + */ +#include <linux/sched.h> +#include <linux/err.h> +#include <linux/smp.h> + +#include <asm/paravirt.h> +#include <asm/desc.h> +#include <asm/pgtable.h> +#include <asm/cpu.h> + +#include <xen/interface/xen.h> +#include <xen/interface/vcpu.h> + +#include <asm/xen/interface.h> +#include <asm/xen/hypercall.h> + +#include <xen/page.h> +#include <xen/events.h> + +#include "xen-ops.h" +#include "mmu.h" + +static cpumask_t cpu_initialized_map; +static DEFINE_PER_CPU(int, resched_irq); +static DEFINE_PER_CPU(int, callfunc_irq); + +/* + * Structure and data for smp_call_function(). This is designed to minimise + * static memory requirements. It also looks cleaner. + */ +static DEFINE_SPINLOCK(call_lock); + +struct call_data_struct { + void (*func) (void *info); + void *info; + atomic_t started; + atomic_t finished; + int wait; +}; + +static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id); + +static struct call_data_struct *call_data; + +/* + * Reschedule call back. Nothing to do, + * all the work is done automatically when + * we return from the interrupt. + */ +static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id) +{ + return IRQ_HANDLED; +} + +static __cpuinit void cpu_bringup_and_idle(void) +{ + int cpu = smp_processor_id(); + + cpu_init(); + + preempt_disable(); + per_cpu(cpu_state, cpu) = CPU_ONLINE; + + xen_setup_cpu_clockevents(); + + /* We can take interrupts now: we're officially "up". */ + local_irq_enable(); + + wmb(); /* make sure everything is out */ + cpu_idle(); +} + +static int xen_smp_intr_init(unsigned int cpu) +{ + int rc; + const char *resched_name, *callfunc_name; + + per_cpu(resched_irq, cpu) = per_cpu(callfunc_irq, cpu) = -1; + + resched_name = kasprintf(GFP_KERNEL, "resched%d", cpu); + rc = bind_ipi_to_irqhandler(XEN_RESCHEDULE_VECTOR, + cpu, + xen_reschedule_interrupt, + IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING, + resched_name, + NULL); + if (rc < 0) + goto fail; + per_cpu(resched_irq, cpu) = rc; + + callfunc_name = kasprintf(GFP_KERNEL, "callfunc%d", cpu); + rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_VECTOR, + cpu, + xen_call_function_interrupt, + IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING, + callfunc_name, + NULL); + if (rc < 0) + goto fail; + per_cpu(callfunc_irq, cpu) = rc; + + return 0; + + fail: + if (per_cpu(resched_irq, cpu) >= 0) + unbind_from_irqhandler(per_cpu(resched_irq, cpu), NULL); + if (per_cpu(callfunc_irq, cpu) >= 0) + unbind_from_irqhandler(per_cpu(callfunc_irq, cpu), NULL); + return rc; +} + +void __init xen_fill_possible_map(void) +{ + int i, rc; + + for (i = 0; i < NR_CPUS; i++) { + rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL); + if (rc >= 0) + cpu_set(i, cpu_possible_map); + } +} + +void __init xen_smp_prepare_boot_cpu(void) +{ + int cpu; + + BUG_ON(smp_processor_id() != 0); + native_smp_prepare_boot_cpu(); + + /* We've switched to the "real" per-cpu gdt, so make sure the + old memory can be recycled */ + make_lowmem_page_readwrite(&per_cpu__gdt_page); + + for (cpu = 0; cpu < NR_CPUS; cpu++) { + cpus_clear(cpu_sibling_map[cpu]); + cpus_clear(cpu_core_map[cpu]); + } + + xen_setup_vcpu_info_placement(); +} + +void __init xen_smp_prepare_cpus(unsigned int max_cpus) +{ + unsigned cpu; + + for (cpu = 0; cpu < NR_CPUS; cpu++) { + cpus_clear(cpu_sibling_map[cpu]); + cpus_clear(cpu_core_map[cpu]); + } + + smp_store_cpu_info(0); + set_cpu_sibling_map(0); + + if (xen_smp_intr_init(0)) + BUG(); + + cpu_initialized_map = cpumask_of_cpu(0); + + /* Restrict the possible_map according to max_cpus. */ + while ((num_possible_cpus() > 1) && (num_possible_cpus() > max_cpus)) { + for (cpu = NR_CPUS-1; !cpu_isset(cpu, cpu_possible_map); cpu--) + continue; + cpu_clear(cpu, cpu_possible_map); + } + + for_each_possible_cpu (cpu) { + struct task_struct *idle; + + if (cpu == 0) + continue; + + idle = fork_idle(cpu); + if (IS_ERR(idle)) + panic("failed fork for CPU %d", cpu); + + cpu_set(cpu, cpu_present_map); + } + + //init_xenbus_allowed_cpumask(); +} + +static __cpuinit int +cpu_initialize_context(unsigned int cpu, struct task_struct *idle) +{ + struct vcpu_guest_context *ctxt; + struct gdt_page *gdt = &per_cpu(gdt_page, cpu); + + if (cpu_test_and_set(cpu, cpu_initialized_map)) + return 0; + + ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); + if (ctxt == NULL) + return -ENOMEM; + + ctxt->flags = VGCF_IN_KERNEL; + ctxt->user_regs.ds = __USER_DS; + ctxt->user_regs.es = __USER_DS; + ctxt->user_regs.fs = __KERNEL_PERCPU; + ctxt->user_regs.gs = 0; + ctxt->user_regs.ss = __KERNEL_DS; + ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle; + ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */ + + memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt)); + + xen_copy_trap_info(ctxt->trap_ctxt); + + ctxt->ldt_ents = 0; + + BUG_ON((unsigned long)gdt->gdt & ~PAGE_MASK); + make_lowmem_page_readonly(gdt->gdt); + + ctxt->gdt_frames[0] = virt_to_mfn(gdt->gdt); + ctxt->gdt_ents = ARRAY_SIZE(gdt->gdt); + + ctxt->user_regs.cs = __KERNEL_CS; + ctxt->user_regs.esp = idle->thread.esp0 - sizeof(struct pt_regs); + + ctxt->kernel_ss = __KERNEL_DS; + ctxt->kernel_sp = idle->thread.esp0; + + ctxt->event_callback_cs = __KERNEL_CS; + ctxt->event_callback_eip = (unsigned long)xen_hypervisor_callback; + ctxt->failsafe_callback_cs = __KERNEL_CS; + ctxt->failsafe_callback_eip = (unsigned long)xen_failsafe_callback; + + per_cpu(xen_cr3, cpu) = __pa(swapper_pg_dir); + ctxt->ctrlreg[3] = xen_pfn_to_cr3(virt_to_mfn(swapper_pg_dir)); + + if (HYPERVISOR_vcpu_op(VCPUOP_initialise, cpu, ctxt)) + BUG(); + + kfree(ctxt); + return 0; +} + +int __cpuinit xen_cpu_up(unsigned int cpu) +{ + struct task_struct *idle = idle_task(cpu); + int rc; + +#if 0 + rc = cpu_up_check(cpu); + if (rc) + return rc; +#endif + + init_gdt(cpu); + per_cpu(current_task, cpu) = idle; + irq_ctx_init(cpu); + xen_setup_timer(cpu); + + /* make sure interrupts start blocked */ + per_cpu(xen_vcpu, cpu)->evtchn_upcall_mask = 1; + + rc = cpu_initialize_context(cpu, idle); + if (rc) + return rc; + + if (num_online_cpus() == 1) + alternatives_smp_switch(1); + + rc = xen_smp_intr_init(cpu); + if (rc) + return rc; + + smp_store_cpu_info(cpu); + set_cpu_sibling_map(cpu); + /* This must be done before setting cpu_online_map */ + wmb(); + + cpu_set(cpu, cpu_online_map); + + rc = HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL); + BUG_ON(rc); + + return 0; +} + +void xen_smp_cpus_done(unsigned int max_cpus) +{ +} + +static void stop_self(void *v) +{ + int cpu = smp_processor_id(); + + /* make sure we're not pinning something down */ + load_cr3(swapper_pg_dir); + /* should set up a minimal gdt */ + + HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL); + BUG(); +} + +void xen_smp_send_stop(void) +{ + smp_call_function(stop_self, NULL, 0, 0); +} + +void xen_smp_send_reschedule(int cpu) +{ + xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR); +} + + +static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector) +{ + unsigned cpu; + + cpus_and(mask, mask, cpu_online_map); + + for_each_cpu_mask(cpu, mask) + xen_send_IPI_one(cpu, vector); +} + +static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id) +{ + void (*func) (void *info) = call_data->func; + void *info = call_data->info; + int wait = call_data->wait; + + /* + * Notify initiating CPU that I've grabbed the data and am + * about to execute the function + */ + mb(); + atomic_inc(&call_data->started); + /* + * At this point the info structure may be out of scope unless wait==1 + */ + irq_enter(); + (*func)(info); + irq_exit(); + + if (wait) { + mb(); /* commit everything before setting finished */ + atomic_inc(&call_data->finished); + } + + return IRQ_HANDLED; +} + +int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *), + void *info, int wait) +{ + struct call_data_struct data; + int cpus; + + /* Holding any lock stops cpus from going down. */ + spin_lock(&call_lock); + + cpu_clear(smp_processor_id(), mask); + + cpus = cpus_weight(mask); + if (!cpus) { + spin_unlock(&call_lock); + return 0; + } + + /* Can deadlock when called with interrupts disabled */ + WARN_ON(irqs_disabled()); + + data.func = func; + data.info = info; + atomic_set(&data.started, 0); + data.wait = wait; + if (wait) + atomic_set(&data.finished, 0); + + call_data = &data; + mb(); /* write everything before IPI */ + + /* Send a message to other CPUs and wait for them to respond */ + xen_send_IPI_mask(mask, XEN_CALL_FUNCTION_VECTOR); + + /* Make sure other vcpus get a chance to run. + XXX too severe? Maybe we should check the other CPU's states? */ + HYPERVISOR_sched_op(SCHEDOP_yield, 0); + + /* Wait for response */ + while (atomic_read(&data.started) != cpus || + (wait && atomic_read(&data.finished) != cpus)) + cpu_relax(); + + spin_unlock(&call_lock); + + return 0; +} diff --git a/arch/i386/xen/time.c b/arch/i386/xen/time.c new file mode 100644 index 000000000000..51fdabf1fd4d --- /dev/null +++ b/arch/i386/xen/time.c @@ -0,0 +1,590 @@ +/* + * Xen time implementation. + * + * This is implemented in terms of a clocksource driver which uses + * the hypervisor clock as a nanosecond timebase, and a clockevent + * driver which uses the hypervisor's timer mechanism. + * + * Jeremy Fitzhardinge <jeremy@xensource.com>, XenSource Inc, 2007 + */ +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> +#include <linux/kernel_stat.h> + +#include <asm/xen/hypervisor.h> +#include <asm/xen/hypercall.h> + +#include <xen/events.h> +#include <xen/interface/xen.h> +#include <xen/interface/vcpu.h> + +#include "xen-ops.h" + +#define XEN_SHIFT 22 + +/* Xen may fire a timer up to this many ns early */ +#define TIMER_SLOP 100000 +#define NS_PER_TICK (1000000000LL / HZ) + +static cycle_t xen_clocksource_read(void); + +/* These are perodically updated in shared_info, and then copied here. */ +struct shadow_time_info { + u64 tsc_timestamp; /* TSC at last update of time vals. */ + u64 system_timestamp; /* Time, in nanosecs, since boot. */ + u32 tsc_to_nsec_mul; + int tsc_shift; + u32 version; +}; + +static DEFINE_PER_CPU(struct shadow_time_info, shadow_time); + +/* runstate info updated by Xen */ +static DEFINE_PER_CPU(struct vcpu_runstate_info, runstate); + +/* snapshots of runstate info */ +static DEFINE_PER_CPU(struct vcpu_runstate_info, runstate_snapshot); + +/* unused ns of stolen and blocked time */ +static DEFINE_PER_CPU(u64, residual_stolen); +static DEFINE_PER_CPU(u64, residual_blocked); + +/* return an consistent snapshot of 64-bit time/counter value */ +static u64 get64(const u64 *p) +{ + u64 ret; + + if (BITS_PER_LONG < 64) { + u32 *p32 = (u32 *)p; + u32 h, l; + + /* + * Read high then low, and then make sure high is + * still the same; this will only loop if low wraps + * and carries into high. + * XXX some clean way to make this endian-proof? + */ + do { + h = p32[1]; + barrier(); + l = p32[0]; + barrier(); + } while (p32[1] != h); + + ret = (((u64)h) << 32) | l; + } else + ret = *p; + + return ret; +} + +/* + * Runstate accounting + */ +static void get_runstate_snapshot(struct vcpu_runstate_info *res) +{ + u64 state_time; + struct vcpu_runstate_info *state; + + BUG_ON(preemptible()); + + state = &__get_cpu_var(runstate); + + /* + * The runstate info is always updated by the hypervisor on + * the current CPU, so there's no need to use anything + * stronger than a compiler barrier when fetching it. + */ + do { + state_time = get64(&state->state_entry_time); + barrier(); + *res = *state; + barrier(); + } while (get64(&state->state_entry_time) != state_time); +} + +static void setup_runstate_info(int cpu) +{ + struct vcpu_register_runstate_memory_area area; + + area.addr.v = &per_cpu(runstate, cpu); + + if (HYPERVISOR_vcpu_op(VCPUOP_register_runstate_memory_area, + cpu, &area)) + BUG(); +} + +static void do_stolen_accounting(void) +{ + struct vcpu_runstate_info state; + struct vcpu_runstate_info *snap; + s64 blocked, runnable, offline, stolen; + cputime_t ticks; + + get_runstate_snapshot(&state); + + WARN_ON(state.state != RUNSTATE_running); + + snap = &__get_cpu_var(runstate_snapshot); + + /* work out how much time the VCPU has not been runn*ing* */ + blocked = state.time[RUNSTATE_blocked] - snap->time[RUNSTATE_blocked]; + runnable = state.time[RUNSTATE_runnable] - snap->time[RUNSTATE_runnable]; + offline = state.time[RUNSTATE_offline] - snap->time[RUNSTATE_offline]; + + *snap = state; + + /* Add the appropriate number of ticks of stolen time, + including any left-overs from last time. Passing NULL to + account_steal_time accounts the time as stolen. */ + stolen = runnable + offline + __get_cpu_var(residual_stolen); + + if (stolen < 0) + stolen = 0; + + ticks = 0; + while (stolen >= NS_PER_TICK) { + ticks++; + stolen -= NS_PER_TICK; + } + __get_cpu_var(residual_stolen) = stolen; + account_steal_time(NULL, ticks); + + /* Add the appropriate number of ticks of blocked time, + including any left-overs from last time. Passing idle to + account_steal_time accounts the time as idle/wait. */ + blocked += __get_cpu_var(residual_blocked); + + if (blocked < 0) + blocked = 0; + + ticks = 0; + while (blocked >= NS_PER_TICK) { + ticks++; + blocked -= NS_PER_TICK; + } + __get_cpu_var(residual_blocked) = blocked; + account_steal_time(idle_task(smp_processor_id()), ticks); +} + +/* + * Xen sched_clock implementation. Returns the number of unstolen + * nanoseconds, which is nanoseconds the VCPU spent in RUNNING+BLOCKED + * states. + */ +unsigned long long xen_sched_clock(void) +{ + struct vcpu_runstate_info state; + cycle_t now; + u64 ret; + s64 offset; + + /* + * Ideally sched_clock should be called on a per-cpu basis + * anyway, so preempt should already be disabled, but that's + * not current practice at the moment. + */ + preempt_disable(); + + now = xen_clocksource_read(); + + get_runstate_snapshot(&state); + + WARN_ON(state.state != RUNSTATE_running); + + offset = now - state.state_entry_time; + if (offset < 0) + offset = 0; + + ret = state.time[RUNSTATE_blocked] + + state.time[RUNSTATE_running] + + offset; + + preempt_enable(); + + return ret; +} + + +/* Get the CPU speed from Xen */ +unsigned long xen_cpu_khz(void) +{ + u64 cpu_khz = 1000000ULL << 32; + const struct vcpu_time_info *info = + &HYPERVISOR_shared_info->vcpu_info[0].time; + + do_div(cpu_khz, info->tsc_to_system_mul); + if (info->tsc_shift < 0) + cpu_khz <<= -info->tsc_shift; + else + cpu_khz >>= info->tsc_shift; + + return cpu_khz; +} + +/* + * Reads a consistent set of time-base values from Xen, into a shadow data + * area. + */ +static unsigned get_time_values_from_xen(void) +{ + struct vcpu_time_info *src; + struct shadow_time_info *dst; + + /* src is shared memory with the hypervisor, so we need to + make sure we get a consistent snapshot, even in the face of + being preempted. */ + src = &__get_cpu_var(xen_vcpu)->time; + dst = &__get_cpu_var(shadow_time); + + do { + dst->version = src->version; + rmb(); /* fetch version before data */ + dst->tsc_timestamp = src->tsc_timestamp; + dst->system_timestamp = src->system_time; + dst->tsc_to_nsec_mul = src->tsc_to_system_mul; + dst->tsc_shift = src->tsc_shift; + rmb(); /* test version after fetching data */ + } while ((src->version & 1) | (dst->version ^ src->version)); + + return dst->version; +} + +/* + * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction, + * yielding a 64-bit result. + */ +static inline u64 scale_delta(u64 delta, u32 mul_frac, int shift) +{ + u64 product; +#ifdef __i386__ + u32 tmp1, tmp2; +#endif + + if (shift < 0) + delta >>= -shift; + else + delta <<= shift; + +#ifdef __i386__ + __asm__ ( + "mul %5 ; " + "mov %4,%%eax ; " + "mov %%edx,%4 ; " + "mul %5 ; " + "xor %5,%5 ; " + "add %4,%%eax ; " + "adc %5,%%edx ; " + : "=A" (product), "=r" (tmp1), "=r" (tmp2) + : "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) ); +#elif __x86_64__ + __asm__ ( + "mul %%rdx ; shrd $32,%%rdx,%%rax" + : "=a" (product) : "0" (delta), "d" ((u64)mul_frac) ); +#else +#error implement me! +#endif + + return product; +} + +static u64 get_nsec_offset(struct shadow_time_info *shadow) +{ + u64 now, delta; + now = native_read_tsc(); + delta = now - shadow->tsc_timestamp; + return scale_delta(delta, shadow->tsc_to_nsec_mul, shadow->tsc_shift); +} + +static cycle_t xen_clocksource_read(void) +{ + struct shadow_time_info *shadow = &get_cpu_var(shadow_time); + cycle_t ret; + unsigned version; + + do { + version = get_time_values_from_xen(); + barrier(); + ret = shadow->system_timestamp + get_nsec_offset(shadow); + barrier(); + } while (version != __get_cpu_var(xen_vcpu)->time.version); + + put_cpu_var(shadow_time); + + return ret; +} + +static void xen_read_wallclock(struct timespec *ts) +{ + const struct shared_info *s = HYPERVISOR_shared_info; + u32 version; + u64 delta; + struct timespec now; + + /* get wallclock at system boot */ + do { + version = s->wc_version; + rmb(); /* fetch version before time */ + now.tv_sec = s->wc_sec; + now.tv_nsec = s->wc_nsec; + rmb(); /* fetch time before checking version */ + } while ((s->wc_version & 1) | (version ^ s->wc_version)); + + delta = xen_clocksource_read(); /* time since system boot */ + delta += now.tv_sec * (u64)NSEC_PER_SEC + now.tv_nsec; + + now.tv_nsec = do_div(delta, NSEC_PER_SEC); + now.tv_sec = delta; + + set_normalized_timespec(ts, now.tv_sec, now.tv_nsec); +} + +unsigned long xen_get_wallclock(void) +{ + struct timespec ts; + + xen_read_wallclock(&ts); + + return ts.tv_sec; +} + +int xen_set_wallclock(unsigned long now) +{ + /* do nothing for domU */ + return -1; +} + +static struct clocksource xen_clocksource __read_mostly = { + .name = "xen", + .rating = 400, + .read = xen_clocksource_read, + .mask = ~0, + .mult = 1<<XEN_SHIFT, /* time directly in nanoseconds */ + .shift = XEN_SHIFT, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +/* + Xen clockevent implementation + + Xen has two clockevent implementations: + + The old timer_op one works with all released versions of Xen prior + to version 3.0.4. This version of the hypervisor provides a + single-shot timer with nanosecond resolution. However, sharing the + same event channel is a 100Hz tick which is delivered while the + vcpu is running. We don't care about or use this tick, but it will + cause the core time code to think the timer fired too soon, and + will end up resetting it each time. It could be filtered, but + doing so has complications when the ktime clocksource is not yet + the xen clocksource (ie, at boot time). + + The new vcpu_op-based timer interface allows the tick timer period + to be changed or turned off. The tick timer is not useful as a + periodic timer because events are only delivered to running vcpus. + The one-shot timer can report when a timeout is in the past, so + set_next_event is capable of returning -ETIME when appropriate. + This interface is used when available. +*/ + + +/* + Get a hypervisor absolute time. In theory we could maintain an + offset between the kernel's time and the hypervisor's time, and + apply that to a kernel's absolute timeout. Unfortunately the + hypervisor and kernel times can drift even if the kernel is using + the Xen clocksource, because ntp can warp the kernel's clocksource. +*/ +static s64 get_abs_timeout(unsigned long delta) +{ + return xen_clocksource_read() + delta; +} + +static void xen_timerop_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + /* unsupported */ + WARN_ON(1); + break; + + case CLOCK_EVT_MODE_ONESHOT: + break; + + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + HYPERVISOR_set_timer_op(0); /* cancel timeout */ + break; + } +} + +static int xen_timerop_set_next_event(unsigned long delta, + struct clock_event_device *evt) +{ + WARN_ON(evt->mode != CLOCK_EVT_MODE_ONESHOT); + + if (HYPERVISOR_set_timer_op(get_abs_timeout(delta)) < 0) + BUG(); + + /* We may have missed the deadline, but there's no real way of + knowing for sure. If the event was in the past, then we'll + get an immediate interrupt. */ + + return 0; +} + +static const struct clock_event_device xen_timerop_clockevent = { + .name = "xen", + .features = CLOCK_EVT_FEAT_ONESHOT, + + .max_delta_ns = 0xffffffff, + .min_delta_ns = TIMER_SLOP, + + .mult = 1, + .shift = 0, + .rating = 500, + + .set_mode = xen_timerop_set_mode, + .set_next_event = xen_timerop_set_next_event, +}; + + + +static void xen_vcpuop_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + int cpu = smp_processor_id(); + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + WARN_ON(1); /* unsupported */ + break; + + case CLOCK_EVT_MODE_ONESHOT: + if (HYPERVISOR_vcpu_op(VCPUOP_stop_periodic_timer, cpu, NULL)) + BUG(); + break; + + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + if (HYPERVISOR_vcpu_op(VCPUOP_stop_singleshot_timer, cpu, NULL) || + HYPERVISOR_vcpu_op(VCPUOP_stop_periodic_timer, cpu, NULL)) + BUG(); + break; + } +} + +static int xen_vcpuop_set_next_event(unsigned long delta, + struct clock_event_device *evt) +{ + int cpu = smp_processor_id(); + struct vcpu_set_singleshot_timer single; + int ret; + + WARN_ON(evt->mode != CLOCK_EVT_MODE_ONESHOT); + + single.timeout_abs_ns = get_abs_timeout(delta); + single.flags = VCPU_SSHOTTMR_future; + + ret = HYPERVISOR_vcpu_op(VCPUOP_set_singleshot_timer, cpu, &single); + + BUG_ON(ret != 0 && ret != -ETIME); + + return ret; +} + +static const struct clock_event_device xen_vcpuop_clockevent = { + .name = "xen", + .features = CLOCK_EVT_FEAT_ONESHOT, + + .max_delta_ns = 0xffffffff, + .min_delta_ns = TIMER_SLOP, + + .mult = 1, + .shift = 0, + .rating = 500, + + .set_mode = xen_vcpuop_set_mode, + .set_next_event = xen_vcpuop_set_next_event, +}; + +static const struct clock_event_device *xen_clockevent = + &xen_timerop_clockevent; +static DEFINE_PER_CPU(struct clock_event_device, xen_clock_events); + +static irqreturn_t xen_timer_interrupt(int irq, void *dev_id) +{ + struct clock_event_device *evt = &__get_cpu_var(xen_clock_events); + irqreturn_t ret; + + ret = IRQ_NONE; + if (evt->event_handler) { + evt->event_handler(evt); + ret = IRQ_HANDLED; + } + + do_stolen_accounting(); + + return ret; +} + +void xen_setup_timer(int cpu) +{ + const char *name; + struct clock_event_device *evt; + int irq; + + printk(KERN_INFO "installing Xen timer for CPU %d\n", cpu); + + name = kasprintf(GFP_KERNEL, "timer%d", cpu); + if (!name) + name = "<timer kasprintf failed>"; + + irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt, + IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING, + name, NULL); + + evt = &per_cpu(xen_clock_events, cpu); + memcpy(evt, xen_clockevent, sizeof(*evt)); + + evt->cpumask = cpumask_of_cpu(cpu); + evt->irq = irq; + + setup_runstate_info(cpu); +} + +void xen_setup_cpu_clockevents(void) +{ + BUG_ON(preemptible()); + + clockevents_register_device(&__get_cpu_var(xen_clock_events)); +} + +__init void xen_time_init(void) +{ + int cpu = smp_processor_id(); + + get_time_values_from_xen(); + + clocksource_register(&xen_clocksource); + + if (HYPERVISOR_vcpu_op(VCPUOP_stop_periodic_timer, cpu, NULL) == 0) { + /* Successfully turned off 100Hz tick, so we have the + vcpuop-based timer interface */ + printk(KERN_DEBUG "Xen: using vcpuop timer interface\n"); + xen_clockevent = &xen_vcpuop_clockevent; + } + + /* Set initial system time with full resolution */ + xen_read_wallclock(&xtime); + set_normalized_timespec(&wall_to_monotonic, + -xtime.tv_sec, -xtime.tv_nsec); + + tsc_disable = 0; + + xen_setup_timer(cpu); + xen_setup_cpu_clockevents(); +} diff --git a/arch/i386/xen/xen-asm.S b/arch/i386/xen/xen-asm.S new file mode 100644 index 000000000000..1a43b60c0c62 --- /dev/null +++ b/arch/i386/xen/xen-asm.S @@ -0,0 +1,291 @@ +/* + Asm versions of Xen pv-ops, suitable for either direct use or inlining. + The inline versions are the same as the direct-use versions, with the + pre- and post-amble chopped off. + + This code is encoded for size rather than absolute efficiency, + with a view to being able to inline as much as possible. + + We only bother with direct forms (ie, vcpu in pda) of the operations + here; the indirect forms are better handled in C, since they're + generally too large to inline anyway. + */ + +#include <linux/linkage.h> + +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> +#include <asm/percpu.h> +#include <asm/processor-flags.h> +#include <asm/segment.h> + +#include <xen/interface/xen.h> + +#define RELOC(x, v) .globl x##_reloc; x##_reloc=v +#define ENDPATCH(x) .globl x##_end; x##_end=. + +/* Pseudo-flag used for virtual NMI, which we don't implement yet */ +#define XEN_EFLAGS_NMI 0x80000000 + +/* + Enable events. This clears the event mask and tests the pending + event status with one and operation. If there are pending + events, then enter the hypervisor to get them handled. + */ +ENTRY(xen_irq_enable_direct) + /* Clear mask and test pending */ + andw $0x00ff, PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_pending + /* Preempt here doesn't matter because that will deal with + any pending interrupts. The pending check may end up being + run on the wrong CPU, but that doesn't hurt. */ + jz 1f +2: call check_events +1: +ENDPATCH(xen_irq_enable_direct) + ret + ENDPROC(xen_irq_enable_direct) + RELOC(xen_irq_enable_direct, 2b+1) + + +/* + Disabling events is simply a matter of making the event mask + non-zero. + */ +ENTRY(xen_irq_disable_direct) + movb $1, PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_mask +ENDPATCH(xen_irq_disable_direct) + ret + ENDPROC(xen_irq_disable_direct) + RELOC(xen_irq_disable_direct, 0) + +/* + (xen_)save_fl is used to get the current interrupt enable status. + Callers expect the status to be in X86_EFLAGS_IF, and other bits + may be set in the return value. We take advantage of this by + making sure that X86_EFLAGS_IF has the right value (and other bits + in that byte are 0), but other bits in the return value are + undefined. We need to toggle the state of the bit, because + Xen and x86 use opposite senses (mask vs enable). + */ +ENTRY(xen_save_fl_direct) + testb $0xff, PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_mask + setz %ah + addb %ah,%ah +ENDPATCH(xen_save_fl_direct) + ret + ENDPROC(xen_save_fl_direct) + RELOC(xen_save_fl_direct, 0) + + +/* + In principle the caller should be passing us a value return + from xen_save_fl_direct, but for robustness sake we test only + the X86_EFLAGS_IF flag rather than the whole byte. After + setting the interrupt mask state, it checks for unmasked + pending events and enters the hypervisor to get them delivered + if so. + */ +ENTRY(xen_restore_fl_direct) + testb $X86_EFLAGS_IF>>8, %ah + setz PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_mask + /* Preempt here doesn't matter because that will deal with + any pending interrupts. The pending check may end up being + run on the wrong CPU, but that doesn't hurt. */ + + /* check for unmasked and pending */ + cmpw $0x0001, PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_pending + jz 1f +2: call check_events +1: +ENDPATCH(xen_restore_fl_direct) + ret + ENDPROC(xen_restore_fl_direct) + RELOC(xen_restore_fl_direct, 2b+1) + +/* + This is run where a normal iret would be run, with the same stack setup: + 8: eflags + 4: cs + esp-> 0: eip + + This attempts to make sure that any pending events are dealt + with on return to usermode, but there is a small window in + which an event can happen just before entering usermode. If + the nested interrupt ends up setting one of the TIF_WORK_MASK + pending work flags, they will not be tested again before + returning to usermode. This means that a process can end up + with pending work, which will be unprocessed until the process + enters and leaves the kernel again, which could be an + unbounded amount of time. This means that a pending signal or + reschedule event could be indefinitely delayed. + + The fix is to notice a nested interrupt in the critical + window, and if one occurs, then fold the nested interrupt into + the current interrupt stack frame, and re-process it + iteratively rather than recursively. This means that it will + exit via the normal path, and all pending work will be dealt + with appropriately. + + Because the nested interrupt handler needs to deal with the + current stack state in whatever form its in, we keep things + simple by only using a single register which is pushed/popped + on the stack. + + Non-direct iret could be done in the same way, but it would + require an annoying amount of code duplication. We'll assume + that direct mode will be the common case once the hypervisor + support becomes commonplace. + */ +ENTRY(xen_iret_direct) + /* test eflags for special cases */ + testl $(X86_EFLAGS_VM | XEN_EFLAGS_NMI), 8(%esp) + jnz hyper_iret + + push %eax + ESP_OFFSET=4 # bytes pushed onto stack + + /* Store vcpu_info pointer for easy access. Do it this + way to avoid having to reload %fs */ +#ifdef CONFIG_SMP + GET_THREAD_INFO(%eax) + movl TI_cpu(%eax),%eax + movl __per_cpu_offset(,%eax,4),%eax + lea per_cpu__xen_vcpu_info(%eax),%eax +#else + movl $per_cpu__xen_vcpu_info, %eax +#endif + + /* check IF state we're restoring */ + testb $X86_EFLAGS_IF>>8, 8+1+ESP_OFFSET(%esp) + + /* Maybe enable events. Once this happens we could get a + recursive event, so the critical region starts immediately + afterwards. However, if that happens we don't end up + resuming the code, so we don't have to be worried about + being preempted to another CPU. */ + setz XEN_vcpu_info_mask(%eax) +xen_iret_start_crit: + + /* check for unmasked and pending */ + cmpw $0x0001, XEN_vcpu_info_pending(%eax) + + /* If there's something pending, mask events again so we + can jump back into xen_hypervisor_callback */ + sete XEN_vcpu_info_mask(%eax) + + popl %eax + + /* From this point on the registers are restored and the stack + updated, so we don't need to worry about it if we're preempted */ +iret_restore_end: + + /* Jump to hypervisor_callback after fixing up the stack. + Events are masked, so jumping out of the critical + region is OK. */ + je xen_hypervisor_callback + + iret +xen_iret_end_crit: + +hyper_iret: + /* put this out of line since its very rarely used */ + jmp hypercall_page + __HYPERVISOR_iret * 32 + + .globl xen_iret_start_crit, xen_iret_end_crit + +/* + This is called by xen_hypervisor_callback in entry.S when it sees + that the EIP at the time of interrupt was between xen_iret_start_crit + and xen_iret_end_crit. We're passed the EIP in %eax so we can do + a more refined determination of what to do. + + The stack format at this point is: + ---------------- + ss : (ss/esp may be present if we came from usermode) + esp : + eflags } outer exception info + cs } + eip } + ---------------- <- edi (copy dest) + eax : outer eax if it hasn't been restored + ---------------- + eflags } nested exception info + cs } (no ss/esp because we're nested + eip } from the same ring) + orig_eax }<- esi (copy src) + - - - - - - - - + fs } + es } + ds } SAVE_ALL state + eax } + : : + ebx } + ---------------- + return addr <- esp + ---------------- + + In order to deliver the nested exception properly, we need to shift + everything from the return addr up to the error code so it + sits just under the outer exception info. This means that when we + handle the exception, we do it in the context of the outer exception + rather than starting a new one. + + The only caveat is that if the outer eax hasn't been + restored yet (ie, it's still on stack), we need to insert + its value into the SAVE_ALL state before going on, since + it's usermode state which we eventually need to restore. + */ +ENTRY(xen_iret_crit_fixup) + /* offsets +4 for return address */ + + /* + Paranoia: Make sure we're really coming from userspace. + One could imagine a case where userspace jumps into the + critical range address, but just before the CPU delivers a GP, + it decides to deliver an interrupt instead. Unlikely? + Definitely. Easy to avoid? Yes. The Intel documents + explicitly say that the reported EIP for a bad jump is the + jump instruction itself, not the destination, but some virtual + environments get this wrong. + */ + movl PT_CS+4(%esp), %ecx + andl $SEGMENT_RPL_MASK, %ecx + cmpl $USER_RPL, %ecx + je 2f + + lea PT_ORIG_EAX+4(%esp), %esi + lea PT_EFLAGS+4(%esp), %edi + + /* If eip is before iret_restore_end then stack + hasn't been restored yet. */ + cmp $iret_restore_end, %eax + jae 1f + + movl 0+4(%edi),%eax /* copy EAX */ + movl %eax, PT_EAX+4(%esp) + + lea ESP_OFFSET(%edi),%edi /* move dest up over saved regs */ + + /* set up the copy */ +1: std + mov $(PT_EIP+4) / 4, %ecx /* copy ret+saved regs up to orig_eax */ + rep movsl + cld + + lea 4(%edi),%esp /* point esp to new frame */ +2: ret + + +/* + Force an event check by making a hypercall, + but preserve regs before making the call. + */ +check_events: + push %eax + push %ecx + push %edx + call force_evtchn_callback + pop %edx + pop %ecx + pop %eax + ret diff --git a/arch/i386/xen/xen-head.S b/arch/i386/xen/xen-head.S new file mode 100644 index 000000000000..2998d55a0017 --- /dev/null +++ b/arch/i386/xen/xen-head.S @@ -0,0 +1,36 @@ +/* Xen-specific pieces of head.S, intended to be included in the right + place in head.S */ + +#ifdef CONFIG_XEN + +#include <linux/elfnote.h> +#include <asm/boot.h> +#include <xen/interface/elfnote.h> + +ENTRY(startup_xen) + movl %esi,xen_start_info + cld + movl $(init_thread_union+THREAD_SIZE),%esp + jmp xen_start_kernel + +.pushsection ".bss.page_aligned" + .align PAGE_SIZE_asm +ENTRY(hypercall_page) + .skip 0x1000 +.popsection + + ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux") + ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz "2.6") + ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz "xen-3.0") + ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, .long __PAGE_OFFSET) + ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long startup_xen) + ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long hypercall_page) + ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz "!writable_page_tables|pae_pgdir_above_4gb") +#ifdef CONFIG_X86_PAE + ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes") +#else + ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "no") +#endif + ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic") + +#endif /*CONFIG_XEN */ diff --git a/arch/i386/xen/xen-ops.h b/arch/i386/xen/xen-ops.h new file mode 100644 index 000000000000..b9aaea45f07f --- /dev/null +++ b/arch/i386/xen/xen-ops.h @@ -0,0 +1,71 @@ +#ifndef XEN_OPS_H +#define XEN_OPS_H + +#include <linux/init.h> + +/* These are code, but not functions. Defined in entry.S */ +extern const char xen_hypervisor_callback[]; +extern const char xen_failsafe_callback[]; + +void xen_copy_trap_info(struct trap_info *traps); + +DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu); +DECLARE_PER_CPU(unsigned long, xen_cr3); + +extern struct start_info *xen_start_info; +extern struct shared_info *HYPERVISOR_shared_info; + +char * __init xen_memory_setup(void); +void __init xen_arch_setup(void); +void __init xen_init_IRQ(void); + +void xen_setup_timer(int cpu); +void xen_setup_cpu_clockevents(void); +unsigned long xen_cpu_khz(void); +void __init xen_time_init(void); +unsigned long xen_get_wallclock(void); +int xen_set_wallclock(unsigned long time); +unsigned long long xen_sched_clock(void); + +void xen_mark_init_mm_pinned(void); + +DECLARE_PER_CPU(enum paravirt_lazy_mode, xen_lazy_mode); + +static inline unsigned xen_get_lazy_mode(void) +{ + return x86_read_percpu(xen_lazy_mode); +} + +void __init xen_fill_possible_map(void); + +void __init xen_setup_vcpu_info_placement(void); +void xen_smp_prepare_boot_cpu(void); +void xen_smp_prepare_cpus(unsigned int max_cpus); +int xen_cpu_up(unsigned int cpu); +void xen_smp_cpus_done(unsigned int max_cpus); + +void xen_smp_send_stop(void); +void xen_smp_send_reschedule(int cpu); +int xen_smp_call_function (void (*func) (void *info), void *info, int nonatomic, + int wait); +int xen_smp_call_function_single(int cpu, void (*func) (void *info), void *info, + int nonatomic, int wait); + +int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *), + void *info, int wait); + + +/* Declare an asm function, along with symbols needed to make it + inlineable */ +#define DECL_ASM(ret, name, ...) \ + ret name(__VA_ARGS__); \ + extern char name##_end[]; \ + extern char name##_reloc[] \ + +DECL_ASM(void, xen_irq_enable_direct, void); +DECL_ASM(void, xen_irq_disable_direct, void); +DECL_ASM(unsigned long, xen_save_fl_direct, void); +DECL_ASM(void, xen_restore_fl_direct, unsigned long); + +void xen_iret_direct(void); +#endif /* XEN_OPS_H */ diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index db9ddff95841..616c96e73483 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -582,8 +582,8 @@ menu "Instrumentation Support" source "arch/ia64/oprofile/Kconfig" config KPROBES - bool "Kprobes (EXPERIMENTAL)" - depends on KALLSYMS && EXPERIMENTAL && MODULES + bool "Kprobes" + depends on KALLSYMS && MODULES help Kprobes allows you to trap at almost any kernel address and execute a callback function. register_kprobe() establishes diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig index a1446931b401..205bbc30b0d0 100644 --- a/arch/ia64/configs/tiger_defconfig +++ b/arch/ia64/configs/tiger_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.21-rc3 -# Thu Mar 8 11:07:09 2007 +# Linux kernel version: 2.6.22 +# Thu Jul 19 13:54:47 2007 # CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" @@ -19,15 +19,15 @@ CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y -# CONFIG_IPC_NS is not set CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_UTS_NS is not set +# CONFIG_USER_NS is not set # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=20 # CONFIG_CPUSETS is not set CONFIG_SYSFS_DEPRECATED=y # CONFIG_RELAY is not set @@ -46,18 +46,19 @@ CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y +CONFIG_ANON_INODES=y CONFIG_EPOLL=y +CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y +CONFIG_EVENTFD=y CONFIG_SHMEM=y -CONFIG_SLAB=y CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_FORCE_UNLOAD is not set @@ -65,12 +66,9 @@ CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_KMOD=y CONFIG_STOP_MACHINE=y - -# -# Block layer -# CONFIG_BLOCK=y # CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_BLK_DEV_BSG is not set # # IO Schedulers @@ -91,6 +89,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" CONFIG_IA64=y CONFIG_64BIT=y CONFIG_ZONE_DMA=y +CONFIG_QUICKLIST=y CONFIG_MMU=y CONFIG_SWIOTLB=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y @@ -114,8 +113,8 @@ CONFIG_IA64_DIG=y CONFIG_MCKINLEY=y # CONFIG_IA64_PAGE_SIZE_4KB is not set # CONFIG_IA64_PAGE_SIZE_8KB is not set -CONFIG_IA64_PAGE_SIZE_16KB=y -# CONFIG_IA64_PAGE_SIZE_64KB is not set +# CONFIG_IA64_PAGE_SIZE_16KB is not set +CONFIG_IA64_PAGE_SIZE_64KB=y CONFIG_PGTABLE_3=y # CONFIG_PGTABLE_4 is not set # CONFIG_HZ_100 is not set @@ -145,6 +144,9 @@ CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 +CONFIG_BOUNCE=y +CONFIG_NR_QUICK=1 +CONFIG_VIRT_TO_BUS=y CONFIG_ARCH_SELECT_MEMORY_MODEL=y CONFIG_ARCH_DISCONTIGMEM_ENABLE=y CONFIG_ARCH_FLATMEM_ENABLE=y @@ -152,11 +154,11 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_VIRTUAL_MEM_MAP=y CONFIG_HOLES_IN_ZONE=y -CONFIG_IA32_SUPPORT=y -CONFIG_COMPAT=y +# CONFIG_IA32_SUPPORT is not set CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y +# CONFIG_IA64_MC_ERR_INJECT is not set # CONFIG_IA64_ESI is not set CONFIG_KEXEC=y # CONFIG_CRASH_DUMP is not set @@ -166,6 +168,7 @@ CONFIG_KEXEC=y # CONFIG_EFI_VARS=y CONFIG_EFI_PCDP=y +CONFIG_DMIID=y CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m @@ -175,7 +178,6 @@ CONFIG_BINFMT_MISC=m CONFIG_PM=y CONFIG_PM_LEGACY=y # CONFIG_PM_DEBUG is not set -# CONFIG_PM_SYSFS_DEPRECATED is not set # # ACPI (Advanced Configuration and Power Interface) Support @@ -205,13 +207,11 @@ CONFIG_ACPI_CONTAINER=m # CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +CONFIG_PCI_SYSCALL=y # CONFIG_PCIEPORTBUS is not set +CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set # CONFIG_PCI_DEBUG is not set - -# -# PCI Hotplug Support -# CONFIG_HOTPLUG_PCI=m # CONFIG_HOTPLUG_PCI_FAKE is not set CONFIG_HOTPLUG_PCI_ACPI=m @@ -232,7 +232,6 @@ CONFIG_NET=y # # Networking options # -# CONFIG_NETDEBUG is not set CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y @@ -270,20 +269,8 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_INET6_TUNNEL is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# # CONFIG_IP_DCCP is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# # CONFIG_IP_SCTP is not set - -# -# TIPC Configuration (EXPERIMENTAL) -# # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set @@ -309,7 +296,17 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set +# CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set # # Device Drivers @@ -324,25 +321,9 @@ CONFIG_FW_LOADER=m # CONFIG_DEBUG_DRIVER is not set # CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# # CONFIG_CONNECTOR is not set - -# -# Memory Technology Devices (MTD) -# # CONFIG_MTD is not set - -# -# Parallel port support -# # CONFIG_PARPORT is not set - -# -# Plug and Play support -# CONFIG_PNP=y # CONFIG_PNP_DEBUG is not set @@ -350,10 +331,7 @@ CONFIG_PNP=y # Protocols # CONFIG_PNPACPI=y - -# -# Block devices -# +CONFIG_BLK_DEV=y # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set @@ -370,16 +348,11 @@ CONFIG_BLK_DEV_RAM_SIZE=4096 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set - -# -# Misc devices -# +CONFIG_MISC_DEVICES=y +# CONFIG_PHANTOM is not set +# CONFIG_EEPROM_93CX6 is not set # CONFIG_SGI_IOC4 is not set # CONFIG_TIFM_CORE is not set - -# -# ATA/ATAPI/MFM/RLL support -# CONFIG_IDE=y CONFIG_IDE_MAX_HWIFS=4 CONFIG_BLK_DEV_IDE=y @@ -396,6 +369,7 @@ CONFIG_BLK_DEV_IDEFLOPPY=y CONFIG_BLK_DEV_IDESCSI=m # CONFIG_BLK_DEV_IDEACPI is not set # CONFIG_IDE_TASK_IOCTL is not set +CONFIG_IDE_PROC_FS=y # # IDE chipset support/bugfixes @@ -404,12 +378,12 @@ CONFIG_BLK_DEV_IDESCSI=m # CONFIG_BLK_DEV_IDEPNP is not set CONFIG_BLK_DEV_IDEPCI=y # CONFIG_IDEPCI_SHARE_IRQ is not set +CONFIG_IDEPCI_PCIBUS_ORDER=y # CONFIG_BLK_DEV_OFFBOARD is not set CONFIG_BLK_DEV_GENERIC=y # CONFIG_BLK_DEV_OPTI621 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set -CONFIG_IDEDMA_PCI_AUTO=y # CONFIG_IDEDMA_ONLYDISK is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set @@ -438,7 +412,6 @@ CONFIG_BLK_DEV_PIIX=y # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set -CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set # @@ -446,6 +419,7 @@ CONFIG_IDEDMA_AUTO=y # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +CONFIG_SCSI_DMA=y # CONFIG_SCSI_TGT is not set CONFIG_SCSI_NETLINK=y CONFIG_SCSI_PROC_FS=y @@ -468,6 +442,7 @@ CONFIG_CHR_DEV_SG=m # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set # CONFIG_SCSI_SCAN_ASYNC is not set +CONFIG_SCSI_WAIT_SCAN=m # # SCSI Transports @@ -514,15 +489,7 @@ CONFIG_SCSI_QLOGIC_1280=y # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set # CONFIG_SCSI_SRP is not set - -# -# Serial ATA (prod) and Parallel ATA (experimental) drivers -# # CONFIG_ATA is not set - -# -# Multi-device support (RAID and LVM) -# CONFIG_MD=y CONFIG_BLK_DEV_MD=m CONFIG_MD_LINEAR=m @@ -539,6 +506,7 @@ CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m # CONFIG_DM_MULTIPATH is not set +# CONFIG_DM_DELAY is not set # # Fusion MPT device support @@ -553,46 +521,25 @@ CONFIG_FUSION_CTL=y # # IEEE 1394 (FireWire) support # +# CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set - -# -# I2O device support -# # CONFIG_I2O is not set - -# -# Network device support -# CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set CONFIG_DUMMY=m # CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_NET_SB1000 is not set - -# -# ARCnet devices -# # CONFIG_ARCNET is not set - -# -# PHY device support -# # CONFIG_PHYLIB is not set - -# -# Ethernet (10 or 100Mbit) -# CONFIG_NET_ETHERNET=y CONFIG_MII=m # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set # CONFIG_NET_VENDOR_3COM is not set - -# -# Tulip family network device support -# CONFIG_NET_TULIP=y # CONFIG_DE2104X is not set CONFIG_TULIP=m @@ -623,10 +570,7 @@ CONFIG_E100=m # CONFIG_SUNDANCE is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set - -# -# Ethernet (1000 Mbit) -# +CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set # CONFIG_DL2K is not set CONFIG_E1000=y @@ -639,36 +583,36 @@ CONFIG_E1000=y # CONFIG_SIS190 is not set # CONFIG_SKGE is not set # CONFIG_SKY2 is not set -# CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=y # CONFIG_BNX2 is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set - -# -# Ethernet (10000 Mbit) -# +CONFIG_NETDEV_10000=y # CONFIG_CHELSIO_T1 is not set # CONFIG_CHELSIO_T3 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set # CONFIG_MYRI10GE is not set # CONFIG_NETXEN_NIC is not set - -# -# Token Ring devices -# +# CONFIG_MLX4_CORE is not set # CONFIG_TR is not set # -# Wireless LAN (non-hamradio) +# Wireless LAN # -# CONFIG_NET_RADIO is not set +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # -# Wan interfaces +# USB Network Adapters # +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET_MII is not set +# CONFIG_USB_USBNET is not set # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set @@ -678,18 +622,9 @@ CONFIG_TIGON3=y # CONFIG_SHAPER is not set CONFIG_NETCONSOLE=y CONFIG_NETPOLL=y -# CONFIG_NETPOLL_RX is not set # CONFIG_NETPOLL_TRAP is not set CONFIG_NET_POLL_CONTROLLER=y - -# -# ISDN subsystem -# # CONFIG_ISDN is not set - -# -# Telephony Support -# # CONFIG_PHONE is not set # @@ -697,6 +632,7 @@ CONFIG_NET_POLL_CONTROLLER=y # CONFIG_INPUT=y # CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set # # Userland interfaces @@ -722,9 +658,17 @@ CONFIG_KEYBOARD_ATKBD=y # CONFIG_KEYBOARD_STOWAWAY is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y +CONFIG_MOUSE_PS2_ALPS=y +CONFIG_MOUSE_PS2_LOGIPS2PP=y +CONFIG_MOUSE_PS2_SYNAPTICS=y +CONFIG_MOUSE_PS2_LIFEBOOK=y +CONFIG_MOUSE_PS2_TRACKPOINT=y +# CONFIG_MOUSE_PS2_TOUCHKIT is not set # CONFIG_MOUSE_SERIAL is not set +# CONFIG_MOUSE_APPLETOUCH is not set # CONFIG_MOUSE_VSXXXAA is not set # CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set @@ -790,19 +734,10 @@ CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 - -# -# IPMI -# # CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# # CONFIG_WATCHDOG is not set # CONFIG_HW_RANDOM is not set CONFIG_EFI_RTC=y -# CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set CONFIG_AGP=m @@ -821,15 +756,8 @@ CONFIG_HPET=y # CONFIG_HPET_RTC_IRQ is not set CONFIG_HPET_MMAP=y # CONFIG_HANGCHECK_TIMER is not set - -# -# TPM devices -# # CONFIG_TCG_TPM is not set - -# -# I2C support -# +CONFIG_DEVPORT=y # CONFIG_I2C is not set # @@ -837,21 +765,17 @@ CONFIG_HPET_MMAP=y # # CONFIG_SPI is not set # CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# # CONFIG_W1 is not set - -# -# Hardware Monitoring support -# +# CONFIG_POWER_SUPPLY is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set # CONFIG_SENSORS_ABITUGURU is not set # CONFIG_SENSORS_F71805F is not set # CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_VT1211 is not set +# CONFIG_SENSORS_W83627HF is not set # CONFIG_HWMON_DEBUG_CHIP is not set # @@ -863,17 +787,20 @@ CONFIG_HWMON=y # Multimedia devices # # CONFIG_VIDEO_DEV is not set - -# -# Digital Video Broadcasting Devices -# -# CONFIG_DVB is not set +# CONFIG_DVB_CORE is not set +CONFIG_DAB=y # CONFIG_USB_DABUSB is not set # # Graphics support # # CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Display device support +# +# CONFIG_DISPLAY_SUPPORT is not set +# CONFIG_VGASTATE is not set # CONFIG_FB is not set # @@ -887,16 +814,18 @@ CONFIG_DUMMY_CONSOLE=y # Sound # # CONFIG_SOUND is not set - -# -# HID Devices -# +CONFIG_HID_SUPPORT=y CONFIG_HID=y # CONFIG_HID_DEBUG is not set # -# USB support +# USB Input Devices # +CONFIG_USB_HID=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set +CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y @@ -907,8 +836,10 @@ CONFIG_USB=y # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y +CONFIG_USB_DEVICE_CLASS=y # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_SUSPEND is not set +# CONFIG_USB_PERSIST is not set # CONFIG_USB_OTG is not set # @@ -918,7 +849,6 @@ CONFIG_USB_EHCI_HCD=m # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set -# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=m # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set @@ -926,6 +856,7 @@ CONFIG_USB_OHCI_HCD=m CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=y # CONFIG_USB_SL811_HCD is not set +# CONFIG_USB_R8A66597_HCD is not set # # USB Device Class drivers @@ -955,41 +886,10 @@ CONFIG_USB_STORAGE=m # CONFIG_USB_LIBUSUAL is not set # -# USB Input Devices -# -CONFIG_USB_HID=y -# CONFIG_USB_HIDINPUT_POWERBOOK is not set -# CONFIG_HID_FF is not set -# CONFIG_USB_HIDDEV is not set -# CONFIG_USB_AIPTEK is not set -# CONFIG_USB_WACOM is not set -# CONFIG_USB_ACECAD is not set -# CONFIG_USB_KBTAB is not set -# CONFIG_USB_POWERMATE is not set -# CONFIG_USB_TOUCHSCREEN is not set -# CONFIG_USB_YEALINK is not set -# CONFIG_USB_XPAD is not set -# CONFIG_USB_ATI_REMOTE is not set -# CONFIG_USB_ATI_REMOTE2 is not set -# CONFIG_USB_KEYSPAN_REMOTE is not set -# CONFIG_USB_APPLETOUCH is not set -# CONFIG_USB_GTCO is not set - -# # USB Imaging devices # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set - -# -# USB Network Adapters -# -# CONFIG_USB_CATC is not set -# CONFIG_USB_KAWETH is not set -# CONFIG_USB_PEGASUS is not set -# CONFIG_USB_RTL8150 is not set -# CONFIG_USB_USBNET_MII is not set -# CONFIG_USB_USBNET is not set # CONFIG_USB_MON is not set # @@ -1033,10 +933,6 @@ CONFIG_USB_HID=y # USB Gadget Support # # CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# # CONFIG_MMC is not set # @@ -1051,17 +947,9 @@ CONFIG_USB_HID=y # # LED Triggers # - -# -# InfiniBand support -# # CONFIG_INFINIBAND is not set # -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# # Real Time Clock # # CONFIG_RTC_CLASS is not set @@ -1080,12 +968,9 @@ CONFIG_USB_HID=y # # -# Auxiliary Display support -# - -# -# Virtualization +# Userspace I/O # +# CONFIG_UIO is not set # CONFIG_MSPEC is not set # @@ -1200,7 +1085,8 @@ CONFIG_EXPORTFS=m CONFIG_NFS_COMMON=y CONFIG_SUNRPC=m CONFIG_SUNRPC_GSS=m -CONFIG_RPCSEC_GSS_KRB5=m +# CONFIG_SUNRPC_BIND34 is not set +CONFIG_RPCSEC_GSS_KRB5=y # CONFIG_RPCSEC_GSS_SPKM3 is not set CONFIG_SMB_FS=m CONFIG_SMB_NLS_DEFAULT=y @@ -1214,7 +1100,6 @@ CONFIG_CIFS=m # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set # # Partition Types @@ -1236,6 +1121,7 @@ CONFIG_SGI_PARTITION=y # CONFIG_SUN_PARTITION is not set # CONFIG_KARMA_PARTITION is not set CONFIG_EFI_PARTITION=y +# CONFIG_SYSV68_PARTITION is not set # # Native Language Support @@ -1292,11 +1178,14 @@ CONFIG_NLS_UTF8=m CONFIG_BITREVERSE=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y +# CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_PENDING_IRQ=y @@ -1319,8 +1208,8 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y # CONFIG_DEBUG_SHIRQ is not set -CONFIG_LOG_BUF_SHIFT=20 CONFIG_DETECT_SOFTLOCKUP=y +CONFIG_SCHED_DEBUG=y # CONFIG_SCHEDSTATS is not set # CONFIG_TIMER_STATS is not set # CONFIG_DEBUG_SLAB is not set @@ -1343,17 +1232,12 @@ CONFIG_IA64_GRANULE_16MB=y # CONFIG_DISABLE_VHPT is not set # CONFIG_IA64_DEBUG_CMPXCHG is not set # CONFIG_IA64_DEBUG_IRQ is not set -CONFIG_SYSVIPC_COMPAT=y # # Security options # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set - -# -# Cryptographic options -# CONFIG_CRYPTO=y CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_BLKCIPHER=m @@ -1373,6 +1257,7 @@ CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_CBC=m CONFIG_CRYPTO_PCBC=m # CONFIG_CRYPTO_LRW is not set +# CONFIG_CRYPTO_CRYPTD is not set CONFIG_CRYPTO_DES=m # CONFIG_CRYPTO_FCRYPT is not set # CONFIG_CRYPTO_BLOWFISH is not set @@ -1390,7 +1275,4 @@ CONFIG_CRYPTO_DES=m # CONFIG_CRYPTO_CRC32C is not set # CONFIG_CRYPTO_CAMELLIA is not set # CONFIG_CRYPTO_TEST is not set - -# -# Hardware crypto devices -# +CONFIG_CRYPTO_HW=y diff --git a/arch/ia64/defconfig b/arch/ia64/defconfig index 90bd9601cdde..80298ef905eb 100644 --- a/arch/ia64/defconfig +++ b/arch/ia64/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.21-rc3 -# Thu Mar 8 11:01:03 2007 +# Linux kernel version: 2.6.22 +# Thu Jul 19 13:55:32 2007 # CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" @@ -19,15 +19,15 @@ CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y -# CONFIG_IPC_NS is not set CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_UTS_NS is not set +# CONFIG_USER_NS is not set # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=20 # CONFIG_CPUSETS is not set CONFIG_SYSFS_DEPRECATED=y # CONFIG_RELAY is not set @@ -46,18 +46,19 @@ CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y +CONFIG_ANON_INODES=y CONFIG_EPOLL=y +CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y +CONFIG_EVENTFD=y CONFIG_SHMEM=y -CONFIG_SLAB=y CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_FORCE_UNLOAD is not set @@ -65,12 +66,9 @@ CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y CONFIG_STOP_MACHINE=y - -# -# Block layer -# CONFIG_BLOCK=y # CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_BLK_DEV_BSG is not set # # IO Schedulers @@ -91,6 +89,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" CONFIG_IA64=y CONFIG_64BIT=y CONFIG_ZONE_DMA=y +CONFIG_QUICKLIST=y CONFIG_MMU=y CONFIG_SWIOTLB=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y @@ -114,8 +113,8 @@ CONFIG_IA64_GENERIC=y CONFIG_MCKINLEY=y # CONFIG_IA64_PAGE_SIZE_4KB is not set # CONFIG_IA64_PAGE_SIZE_8KB is not set -CONFIG_IA64_PAGE_SIZE_16KB=y -# CONFIG_IA64_PAGE_SIZE_64KB is not set +# CONFIG_IA64_PAGE_SIZE_16KB is not set +CONFIG_IA64_PAGE_SIZE_64KB=y CONFIG_PGTABLE_3=y # CONFIG_PGTABLE_4 is not set # CONFIG_HZ_100 is not set @@ -147,6 +146,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_MIGRATION=y CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 +CONFIG_BOUNCE=y +CONFIG_NR_QUICK=1 +CONFIG_VIRT_TO_BUS=y CONFIG_ARCH_SELECT_MEMORY_MODEL=y CONFIG_ARCH_DISCONTIGMEM_ENABLE=y CONFIG_ARCH_FLATMEM_ENABLE=y @@ -164,7 +166,7 @@ CONFIG_COMPAT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y -# CONFIG_MC_ERR_INJECT is not set +# CONFIG_IA64_MC_ERR_INJECT is not set CONFIG_SGI_SN=y # CONFIG_IA64_ESI is not set @@ -180,6 +182,7 @@ CONFIG_CRASH_DUMP=y # CONFIG_EFI_VARS=y CONFIG_EFI_PCDP=y +CONFIG_DMIID=y CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m @@ -189,7 +192,6 @@ CONFIG_BINFMT_MISC=m CONFIG_PM=y CONFIG_PM_LEGACY=y # CONFIG_PM_DEBUG is not set -# CONFIG_PM_SYSFS_DEPRECATED is not set # # ACPI (Advanced Configuration and Power Interface) Support @@ -220,13 +222,11 @@ CONFIG_ACPI_CONTAINER=m # CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +CONFIG_PCI_SYSCALL=y # CONFIG_PCIEPORTBUS is not set +CONFIG_ARCH_SUPPORTS_MSI=y # CONFIG_PCI_MSI is not set # CONFIG_PCI_DEBUG is not set - -# -# PCI Hotplug Support -# CONFIG_HOTPLUG_PCI=m # CONFIG_HOTPLUG_PCI_FAKE is not set CONFIG_HOTPLUG_PCI_ACPI=m @@ -248,7 +248,6 @@ CONFIG_NET=y # # Networking options # -# CONFIG_NETDEBUG is not set CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y @@ -286,20 +285,8 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_INET6_TUNNEL is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# # CONFIG_IP_DCCP is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# # CONFIG_IP_SCTP is not set - -# -# TIPC Configuration (EXPERIMENTAL) -# # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set @@ -325,7 +312,17 @@ CONFIG_DEFAULT_TCP_CONG="cubic" # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set +# CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set # # Device Drivers @@ -340,25 +337,9 @@ CONFIG_FW_LOADER=m # CONFIG_DEBUG_DRIVER is not set # CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# # CONFIG_CONNECTOR is not set - -# -# Memory Technology Devices (MTD) -# # CONFIG_MTD is not set - -# -# Parallel port support -# # CONFIG_PARPORT is not set - -# -# Plug and Play support -# CONFIG_PNP=y # CONFIG_PNP_DEBUG is not set @@ -366,10 +347,7 @@ CONFIG_PNP=y # Protocols # CONFIG_PNPACPI=y - -# -# Block devices -# +CONFIG_BLK_DEV=y # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set @@ -386,16 +364,11 @@ CONFIG_BLK_DEV_RAM_SIZE=4096 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set - -# -# Misc devices -# +CONFIG_MISC_DEVICES=y +# CONFIG_PHANTOM is not set +# CONFIG_EEPROM_93CX6 is not set CONFIG_SGI_IOC4=y # CONFIG_TIFM_CORE is not set - -# -# ATA/ATAPI/MFM/RLL support -# CONFIG_IDE=y CONFIG_IDE_MAX_HWIFS=4 CONFIG_BLK_DEV_IDE=y @@ -412,6 +385,7 @@ CONFIG_BLK_DEV_IDEFLOPPY=y CONFIG_BLK_DEV_IDESCSI=m # CONFIG_BLK_DEV_IDEACPI is not set # CONFIG_IDE_TASK_IOCTL is not set +CONFIG_IDE_PROC_FS=y # # IDE chipset support/bugfixes @@ -420,12 +394,12 @@ CONFIG_BLK_DEV_IDESCSI=m # CONFIG_BLK_DEV_IDEPNP is not set CONFIG_BLK_DEV_IDEPCI=y CONFIG_IDEPCI_SHARE_IRQ=y +CONFIG_IDEPCI_PCIBUS_ORDER=y # CONFIG_BLK_DEV_OFFBOARD is not set CONFIG_BLK_DEV_GENERIC=y # CONFIG_BLK_DEV_OPTI621 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set -CONFIG_IDEDMA_PCI_AUTO=y # CONFIG_IDEDMA_ONLYDISK is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set @@ -455,7 +429,6 @@ CONFIG_BLK_DEV_SGIIOC4=y # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set -CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set # @@ -463,6 +436,7 @@ CONFIG_IDEDMA_AUTO=y # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +CONFIG_SCSI_DMA=y # CONFIG_SCSI_TGT is not set CONFIG_SCSI_NETLINK=y CONFIG_SCSI_PROC_FS=y @@ -485,6 +459,7 @@ CONFIG_CHR_DEV_SG=m # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set # CONFIG_SCSI_SCAN_ASYNC is not set +CONFIG_SCSI_WAIT_SCAN=m # # SCSI Transports @@ -492,7 +467,7 @@ CONFIG_CHR_DEV_SG=m CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_FC_ATTRS=y # CONFIG_SCSI_ISCSI_ATTRS is not set -# CONFIG_SCSI_SAS_ATTRS is not set +CONFIG_SCSI_SAS_ATTRS=y # CONFIG_SCSI_SAS_LIBSAS is not set # @@ -531,15 +506,7 @@ CONFIG_SCSI_QLOGIC_1280=y # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set # CONFIG_SCSI_SRP is not set - -# -# Serial ATA (prod) and Parallel ATA (experimental) drivers -# # CONFIG_ATA is not set - -# -# Multi-device support (RAID and LVM) -# CONFIG_MD=y CONFIG_BLK_DEV_MD=m CONFIG_MD_LINEAR=m @@ -557,6 +524,8 @@ CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m CONFIG_DM_MULTIPATH=m # CONFIG_DM_MULTIPATH_EMC is not set +# CONFIG_DM_MULTIPATH_RDAC is not set +# CONFIG_DM_DELAY is not set # # Fusion MPT device support @@ -564,53 +533,32 @@ CONFIG_DM_MULTIPATH=m CONFIG_FUSION=y CONFIG_FUSION_SPI=y CONFIG_FUSION_FC=m -# CONFIG_FUSION_SAS is not set +CONFIG_FUSION_SAS=y CONFIG_FUSION_MAX_SGE=128 # CONFIG_FUSION_CTL is not set # # IEEE 1394 (FireWire) support # +# CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set - -# -# I2O device support -# # CONFIG_I2O is not set - -# -# Network device support -# CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set CONFIG_DUMMY=m # CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_NET_SB1000 is not set - -# -# ARCnet devices -# # CONFIG_ARCNET is not set - -# -# PHY device support -# # CONFIG_PHYLIB is not set - -# -# Ethernet (10 or 100Mbit) -# CONFIG_NET_ETHERNET=y CONFIG_MII=m # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set # CONFIG_NET_VENDOR_3COM is not set - -# -# Tulip family network device support -# CONFIG_NET_TULIP=y # CONFIG_DE2104X is not set CONFIG_TULIP=m @@ -641,10 +589,7 @@ CONFIG_E100=m # CONFIG_SUNDANCE is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set - -# -# Ethernet (1000 Mbit) -# +CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set # CONFIG_DL2K is not set CONFIG_E1000=y @@ -657,36 +602,36 @@ CONFIG_E1000=y # CONFIG_SIS190 is not set # CONFIG_SKGE is not set # CONFIG_SKY2 is not set -# CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=y # CONFIG_BNX2 is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set - -# -# Ethernet (10000 Mbit) -# +CONFIG_NETDEV_10000=y # CONFIG_CHELSIO_T1 is not set # CONFIG_CHELSIO_T3 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set # CONFIG_MYRI10GE is not set # CONFIG_NETXEN_NIC is not set - -# -# Token Ring devices -# +# CONFIG_MLX4_CORE is not set # CONFIG_TR is not set # -# Wireless LAN (non-hamradio) +# Wireless LAN # -# CONFIG_NET_RADIO is not set +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # -# Wan interfaces +# USB Network Adapters # +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET_MII is not set +# CONFIG_USB_USBNET is not set # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set @@ -696,18 +641,9 @@ CONFIG_TIGON3=y # CONFIG_SHAPER is not set CONFIG_NETCONSOLE=y CONFIG_NETPOLL=y -# CONFIG_NETPOLL_RX is not set # CONFIG_NETPOLL_TRAP is not set CONFIG_NET_POLL_CONTROLLER=y - -# -# ISDN subsystem -# # CONFIG_ISDN is not set - -# -# Telephony Support -# # CONFIG_PHONE is not set # @@ -715,6 +651,7 @@ CONFIG_NET_POLL_CONTROLLER=y # CONFIG_INPUT=y # CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set # # Userland interfaces @@ -740,9 +677,17 @@ CONFIG_KEYBOARD_ATKBD=y # CONFIG_KEYBOARD_STOWAWAY is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y +CONFIG_MOUSE_PS2_ALPS=y +CONFIG_MOUSE_PS2_LOGIPS2PP=y +CONFIG_MOUSE_PS2_SYNAPTICS=y +CONFIG_MOUSE_PS2_LIFEBOOK=y +CONFIG_MOUSE_PS2_TRACKPOINT=y +# CONFIG_MOUSE_PS2_TOUCHKIT is not set # CONFIG_MOUSE_SERIAL is not set +# CONFIG_MOUSE_APPLETOUCH is not set # CONFIG_MOUSE_VSXXXAA is not set # CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set # CONFIG_INPUT_TOUCHSCREEN is not set # CONFIG_INPUT_MISC is not set @@ -814,19 +759,10 @@ CONFIG_SERIAL_SGI_IOC4=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 - -# -# IPMI -# # CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# # CONFIG_WATCHDOG is not set # CONFIG_HW_RANDOM is not set CONFIG_EFI_RTC=y -# CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set CONFIG_AGP=m @@ -848,15 +784,8 @@ CONFIG_HPET=y CONFIG_HPET_MMAP=y # CONFIG_HANGCHECK_TIMER is not set CONFIG_MMTIMER=y - -# -# TPM devices -# # CONFIG_TCG_TPM is not set - -# -# I2C support -# +CONFIG_DEVPORT=y # CONFIG_I2C is not set # @@ -864,21 +793,17 @@ CONFIG_MMTIMER=y # # CONFIG_SPI is not set # CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# # CONFIG_W1 is not set - -# -# Hardware Monitoring support -# +# CONFIG_POWER_SUPPLY is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set # CONFIG_SENSORS_ABITUGURU is not set # CONFIG_SENSORS_F71805F is not set # CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47B397 is not set # CONFIG_SENSORS_VT1211 is not set +# CONFIG_SENSORS_W83627HF is not set # CONFIG_HWMON_DEBUG_CHIP is not set # @@ -890,17 +815,20 @@ CONFIG_HWMON=y # Multimedia devices # # CONFIG_VIDEO_DEV is not set - -# -# Digital Video Broadcasting Devices -# -# CONFIG_DVB is not set +# CONFIG_DVB_CORE is not set +CONFIG_DAB=y # CONFIG_USB_DABUSB is not set # # Graphics support # # CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Display device support +# +# CONFIG_DISPLAY_SUPPORT is not set +# CONFIG_VGASTATE is not set # CONFIG_FB is not set # @@ -1014,9 +942,10 @@ CONFIG_SND_FM801=m # USB devices # # CONFIG_SND_USB_AUDIO is not set +# CONFIG_SND_USB_CAIAQ is not set # -# SoC audio support +# System on Chip audio support # # CONFIG_SND_SOC is not set @@ -1025,16 +954,24 @@ CONFIG_SND_FM801=m # # CONFIG_SOUND_PRIME is not set CONFIG_AC97_BUS=m +CONFIG_HID_SUPPORT=y +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set # -# HID Devices +# USB Input Devices # -CONFIG_HID=y -# CONFIG_HID_DEBUG is not set +CONFIG_USB_HID=m +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set # -# USB support +# USB HID Boot Protocol drivers # +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y @@ -1045,8 +982,10 @@ CONFIG_USB=m # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y +CONFIG_USB_DEVICE_CLASS=y # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_SUSPEND is not set +# CONFIG_USB_PERSIST is not set # CONFIG_USB_OTG is not set # @@ -1056,7 +995,6 @@ CONFIG_USB_EHCI_HCD=m # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set -# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=m # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set @@ -1064,6 +1002,7 @@ CONFIG_USB_OHCI_HCD=m CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=m # CONFIG_USB_SL811_HCD is not set +# CONFIG_USB_R8A66597_HCD is not set # # USB Device Class drivers @@ -1093,47 +1032,10 @@ CONFIG_USB_STORAGE=m # CONFIG_USB_LIBUSUAL is not set # -# USB Input Devices -# -CONFIG_USB_HID=m -# CONFIG_USB_HIDINPUT_POWERBOOK is not set -# CONFIG_HID_FF is not set -# CONFIG_USB_HIDDEV is not set - -# -# USB HID Boot Protocol drivers -# -# CONFIG_USB_KBD is not set -# CONFIG_USB_MOUSE is not set -# CONFIG_USB_AIPTEK is not set -# CONFIG_USB_WACOM is not set -# CONFIG_USB_ACECAD is not set -# CONFIG_USB_KBTAB is not set -# CONFIG_USB_POWERMATE is not set -# CONFIG_USB_TOUCHSCREEN is not set -# CONFIG_USB_YEALINK is not set -# CONFIG_USB_XPAD is not set -# CONFIG_USB_ATI_REMOTE is not set -# CONFIG_USB_ATI_REMOTE2 is not set -# CONFIG_USB_KEYSPAN_REMOTE is not set -# CONFIG_USB_APPLETOUCH is not set -# CONFIG_USB_GTCO is not set - -# # USB Imaging devices # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set - -# -# USB Network Adapters -# -# CONFIG_USB_CATC is not set -# CONFIG_USB_KAWETH is not set -# CONFIG_USB_PEGASUS is not set -# CONFIG_USB_RTL8150 is not set -# CONFIG_USB_USBNET_MII is not set -# CONFIG_USB_USBNET is not set CONFIG_USB_MON=y # @@ -1177,10 +1079,6 @@ CONFIG_USB_MON=y # USB Gadget Support # # CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# # CONFIG_MMC is not set # @@ -1195,10 +1093,6 @@ CONFIG_USB_MON=y # # LED Triggers # - -# -# InfiniBand support -# CONFIG_INFINIBAND=m # CONFIG_INFINIBAND_USER_MAD is not set # CONFIG_INFINIBAND_USER_ACCESS is not set @@ -1206,6 +1100,7 @@ CONFIG_INFINIBAND_ADDR_TRANS=y CONFIG_INFINIBAND_MTHCA=m CONFIG_INFINIBAND_MTHCA_DEBUG=y # CONFIG_INFINIBAND_AMSO1100 is not set +# CONFIG_MLX4_INFINIBAND is not set CONFIG_INFINIBAND_IPOIB=m # CONFIG_INFINIBAND_IPOIB_CM is not set CONFIG_INFINIBAND_IPOIB_DEBUG=y @@ -1214,10 +1109,6 @@ CONFIG_INFINIBAND_IPOIB_DEBUG=y # CONFIG_INFINIBAND_ISER is not set # -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# # Real Time Clock # # CONFIG_RTC_CLASS is not set @@ -1236,12 +1127,9 @@ CONFIG_INFINIBAND_IPOIB_DEBUG=y # # -# Auxiliary Display support -# - -# -# Virtualization +# Userspace I/O # +# CONFIG_UIO is not set # CONFIG_MSPEC is not set # @@ -1357,7 +1245,8 @@ CONFIG_EXPORTFS=m CONFIG_NFS_COMMON=y CONFIG_SUNRPC=m CONFIG_SUNRPC_GSS=m -CONFIG_RPCSEC_GSS_KRB5=m +# CONFIG_SUNRPC_BIND34 is not set +CONFIG_RPCSEC_GSS_KRB5=y # CONFIG_RPCSEC_GSS_SPKM3 is not set CONFIG_SMB_FS=m CONFIG_SMB_NLS_DEFAULT=y @@ -1371,7 +1260,6 @@ CONFIG_CIFS=m # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set # # Partition Types @@ -1393,6 +1281,7 @@ CONFIG_SGI_PARTITION=y # CONFIG_SUN_PARTITION is not set # CONFIG_KARMA_PARTITION is not set CONFIG_EFI_PARTITION=y +# CONFIG_SYSV68_PARTITION is not set # # Native Language Support @@ -1449,11 +1338,14 @@ CONFIG_NLS_UTF8=m CONFIG_BITREVERSE=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y +# CONFIG_CRC7 is not set # CONFIG_LIBCRC32C is not set CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_PENDING_IRQ=y @@ -1483,8 +1375,8 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y # CONFIG_DEBUG_SHIRQ is not set -CONFIG_LOG_BUF_SHIFT=20 CONFIG_DETECT_SOFTLOCKUP=y +CONFIG_SCHED_DEBUG=y # CONFIG_SCHEDSTATS is not set # CONFIG_TIMER_STATS is not set # CONFIG_DEBUG_SLAB is not set @@ -1514,10 +1406,6 @@ CONFIG_SYSVIPC_COMPAT=y # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set - -# -# Cryptographic options -# CONFIG_CRYPTO=y CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_BLKCIPHER=m @@ -1537,6 +1425,7 @@ CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_CBC=m CONFIG_CRYPTO_PCBC=m # CONFIG_CRYPTO_LRW is not set +# CONFIG_CRYPTO_CRYPTD is not set CONFIG_CRYPTO_DES=m # CONFIG_CRYPTO_FCRYPT is not set # CONFIG_CRYPTO_BLOWFISH is not set @@ -1554,7 +1443,4 @@ CONFIG_CRYPTO_DES=m # CONFIG_CRYPTO_CRC32C is not set # CONFIG_CRYPTO_CAMELLIA is not set # CONFIG_CRYPTO_TEST is not set - -# -# Hardware crypto devices -# +CONFIG_CRYPTO_HW=y diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index c1dca226b479..cd4adf52f174 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -34,6 +34,7 @@ #include <linux/efi.h> #include <linux/nodemask.h> #include <linux/bitops.h> /* hweight64() */ +#include <linux/crash_dump.h> #include <asm/delay.h> /* ia64_get_itc() */ #include <asm/io.h> @@ -43,6 +44,8 @@ #include <asm/acpi-ext.h> +extern int swiotlb_late_init_with_default_size (size_t size); + #define PFX "IOC: " /* @@ -2026,11 +2029,24 @@ sba_init(void) if (!ia64_platform_is("hpzx1") && !ia64_platform_is("hpzx1_swiotlb")) return 0; +#if defined(CONFIG_IA64_GENERIC) && defined(CONFIG_CRASH_DUMP) + /* If we are booting a kdump kernel, the sba_iommu will + * cause devices that were not shutdown properly to MCA + * as soon as they are turned back on. Our only option for + * a successful kdump kernel boot is to use the swiotlb. + */ + if (elfcorehdr_addr < ELFCORE_ADDR_MAX) { + if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0) + panic("Unable to initialize software I/O TLB:" + " Try machvec=dig boot option"); + machvec_init("dig"); + return 0; + } +#endif + acpi_bus_register_driver(&acpi_sba_ioc_driver); if (!ioc_list) { #ifdef CONFIG_IA64_GENERIC - extern int swiotlb_late_init_with_default_size (size_t size); - /* * If we didn't find something sba_iommu can claim, we * need to setup the swiotlb and switch to the dig machvec. diff --git a/arch/ia64/hp/sim/boot/fw-emu.c b/arch/ia64/hp/sim/boot/fw-emu.c index 300acd913d9c..1189d035d316 100644 --- a/arch/ia64/hp/sim/boot/fw-emu.c +++ b/arch/ia64/hp/sim/boot/fw-emu.c @@ -329,11 +329,6 @@ sys_fw_init (const char *args, int arglen) strcpy(sal_systab->product_id, "HP-simulator"); #endif -#ifdef CONFIG_IA64_SDV - strcpy(sal_systab->oem_id, "Intel"); - strcpy(sal_systab->product_id, "SDV"); -#endif - /* fill in an entry point: */ sal_ed->type = SAL_DESC_ENTRY_POINT; sal_ed->pal_proc = __pa(pal_desc[0]); diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index 324ea7565e2c..ef252df50e1e 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -36,10 +36,6 @@ #include <asm/hw_irq.h> #include <asm/uaccess.h> -#ifdef CONFIG_KDB -# include <linux/kdb.h> -#endif - #undef SIMSERIAL_DEBUG /* define this to get some debug information */ #define KEYBOARD_INTR 3 /* must match with simulator! */ diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c index 6f4d3d06f0ed..e1189ba1ca5e 100644 --- a/arch/ia64/ia32/binfmt_elf32.c +++ b/arch/ia64/ia32/binfmt_elf32.c @@ -195,62 +195,27 @@ ia64_elf32_init (struct pt_regs *regs) ia32_load_state(current); } +/* + * Undo the override of setup_arg_pages() without this ia32_setup_arg_pages() + * will suffer infinite self recursion. + */ +#undef setup_arg_pages + int ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack) { - unsigned long stack_base; - struct vm_area_struct *mpnt; - struct mm_struct *mm = current->mm; - int i, ret; - - stack_base = IA32_STACK_TOP - MAX_ARG_PAGES*PAGE_SIZE; - mm->arg_start = bprm->p + stack_base; - - bprm->p += stack_base; - if (bprm->loader) - bprm->loader += stack_base; - bprm->exec += stack_base; - - mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (!mpnt) - return -ENOMEM; - - down_write(¤t->mm->mmap_sem); - { - mpnt->vm_mm = current->mm; - mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p; - mpnt->vm_end = IA32_STACK_TOP; - if (executable_stack == EXSTACK_ENABLE_X) - mpnt->vm_flags = VM_STACK_FLAGS | VM_EXEC; - else if (executable_stack == EXSTACK_DISABLE_X) - mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC; - else - mpnt->vm_flags = VM_STACK_FLAGS; - mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC)? - PAGE_COPY_EXEC: PAGE_COPY; - if ((ret = insert_vm_struct(current->mm, mpnt))) { - up_write(¤t->mm->mmap_sem); - kmem_cache_free(vm_area_cachep, mpnt); - return ret; - } - current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt); + int ret; + + ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack); + if (!ret) { + /* + * Can't do it in ia64_elf32_init(). Needs to be done before + * calls to elf32_map() + */ + current->thread.ppl = ia32_init_pp_list(); } - for (i = 0 ; i < MAX_ARG_PAGES ; i++) { - struct page *page = bprm->page[i]; - if (page) { - bprm->page[i] = NULL; - install_arg_page(mpnt, page, stack_base); - } - stack_base += PAGE_SIZE; - } - up_write(¤t->mm->mmap_sem); - - /* Can't do it in ia64_elf32_init(). Needs to be done before calls to - elf32_map() */ - current->thread.ppl = ia32_init_pp_list(); - - return 0; + return ret; } static void diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 75ec3478d8a2..73ca86d03810 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -28,6 +28,7 @@ #include <linux/time.h> #include <linux/efi.h> #include <linux/kexec.h> +#include <linux/mm.h> #include <asm/io.h> #include <asm/kregs.h> diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index 95f517515235..c36f43c94600 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1581,7 +1581,7 @@ sys_call_table: data8 sys_sync_file_range // 1300 data8 sys_tee data8 sys_vmsplice - data8 sys_ni_syscall // reserved for move_pages + data8 sys_fallocate data8 sys_getcpu data8 sys_epoll_pwait // 1305 data8 sys_utimensat diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S index 8589e84a27c6..3f926c2dc708 100644 --- a/arch/ia64/kernel/fsys.S +++ b/arch/ia64/kernel/fsys.S @@ -247,6 +247,9 @@ ENTRY(fsys_gettimeofday) .time_redo: .pred.rel.mutex p8,p9,p10 ld4.acq r28 = [r29] // xtime_lock.sequence. Must come first for locking purposes + ;; + and r28 = ~1,r28 // Make sequence even to force retry if odd + ;; (p8) mov r2 = ar.itc // CPU_TIMER. 36 clocks latency!!! add r22 = IA64_TIME_INTERPOLATOR_LAST_COUNTER_OFFSET,r20 (p9) ld8 r2 = [r30] // readq(ti->address). Could also have latency issues.. @@ -284,7 +287,6 @@ EX(.fail_efault, probe.w.fault r31, 3) // This takes 5 cycles and we have spare (p15) ld8 r17 = [r19],-IA64_TIMESPEC_TV_NSEC_OFFSET (p7) cmp.ne p7,p0 = r25,r3 // if cmpxchg not successful redo // simulate tbit.nz.or p7,p0 = r28,0 - and r28 = ~1,r28 // Make sequence even to force retry if odd getf.sig r2 = f8 mf add r8 = r8,r18 // Add time interpolator offset diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index 5bc46f151344..5dc98b5abcfb 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -936,10 +936,15 @@ static void ia64_get_bsp_cfm(struct unw_frame_info *info, void *arg) return; } +unsigned long arch_deref_entry_point(void *entry) +{ + return ((struct fnptr *)entry)->ip; +} + int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) { struct jprobe *jp = container_of(p, struct jprobe, kp); - unsigned long addr = ((struct fnptr *)(jp->entry))->ip; + unsigned long addr = arch_deref_entry_point(jp->entry); struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); struct param_bsp_cfm pa; int bytes; diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index b3a47f986e1e..9f72838db26e 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -82,7 +82,7 @@ static volatile struct call_data_struct *call_data; #define IPI_KDUMP_CPU_STOP 3 /* This needs to be cacheline aligned because it is written to by *other* CPUs. */ -static DEFINE_PER_CPU(u64, ipi_operation) ____cacheline_aligned; +static DEFINE_PER_CPU_SHARED_ALIGNED(u64, ipi_operation); extern void cpu_halt (void); diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index 15ad85da15a9..3aeaf15e468b 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -69,6 +69,7 @@ die (const char *str, struct pt_regs *regs, long err) bust_spinlocks(0); die.lock_owner = -1; + add_taint(TAINT_DIE); spin_unlock_irq(&die.lock); if (panic_on_oops) diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 5a65965c8b53..860f251d2fc2 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S @@ -206,6 +206,7 @@ SECTIONS { __per_cpu_start = .; *(.data.percpu) + *(.data.percpu.shared_aligned) __per_cpu_end = .; } . = __phys_per_cpu_start + PERCPU_PAGE_SIZE; /* ensure percpu data fits diff --git a/arch/ia64/lib/checksum.c b/arch/ia64/lib/checksum.c index 4411d9baeb21..9fc955026f86 100644 --- a/arch/ia64/lib/checksum.c +++ b/arch/ia64/lib/checksum.c @@ -60,6 +60,7 @@ csum_tcpudp_nofold (__be32 saddr, __be32 daddr, unsigned short len, result = (result & 0xffffffff) + (result >> 32); return (__force __wsum)result; } +EXPORT_SYMBOL(csum_tcpudp_nofold); extern unsigned long do_csum (const unsigned char *, long); diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index b87f785c2416..73ccb6010c05 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -80,6 +80,7 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re struct mm_struct *mm = current->mm; struct siginfo si; unsigned long mask; + int fault; /* mmap_sem is performance critical.... */ prefetchw(&mm->mmap_sem); @@ -147,26 +148,25 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re * sure we exit gracefully rather than endlessly redo the * fault. */ - switch (handle_mm_fault(mm, vma, address, (mask & VM_WRITE) != 0)) { - case VM_FAULT_MINOR: - ++current->min_flt; - break; - case VM_FAULT_MAJOR: - ++current->maj_flt; - break; - case VM_FAULT_SIGBUS: + fault = handle_mm_fault(mm, vma, address, (mask & VM_WRITE) != 0); + if (unlikely(fault & VM_FAULT_ERROR)) { /* * We ran out of memory, or some other thing happened * to us that made us unable to handle the page fault * gracefully. */ - signal = SIGBUS; - goto bad_area; - case VM_FAULT_OOM: - goto out_of_memory; - default: + if (fault & VM_FAULT_OOM) { + goto out_of_memory; + } else if (fault & VM_FAULT_SIGBUS) { + signal = SIGBUS; + goto bad_area; + } BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index 6da9854751cd..df8d5bed6119 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c @@ -750,9 +750,10 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, u64 arg) goto error; } else if ((r = sn_hwperf_enum_objects(&nobj, &objs)) == 0) { + int cpuobj_index = 0; + memset(p, 0, a.sz); for (i = 0; i < nobj; i++) { - int cpuobj_index = 0; if (!SN_HWPERF_IS_NODE(objs + i)) continue; node = sn_hwperf_obj_to_cnode(objs + i); diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c index 5f02b3144875..57a92ef31a90 100644 --- a/arch/m32r/kernel/ptrace.c +++ b/arch/m32r/kernel/ptrace.c @@ -595,7 +595,6 @@ void ptrace_disable(struct task_struct *child) static int do_ptrace(long request, struct task_struct *child, long addr, long data) { - unsigned long tmp; int ret; switch (request) { @@ -604,11 +603,7 @@ do_ptrace(long request, struct task_struct *child, long addr, long data) */ case PTRACE_PEEKTEXT: case PTRACE_PEEKDATA: - ret = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - if (ret == sizeof(tmp)) - ret = put_user(tmp,(unsigned long __user *) data); - else - ret = -EIO; + ret = generic_ptrace_peekdata(child, addr, data); break; /* @@ -624,15 +619,9 @@ do_ptrace(long request, struct task_struct *child, long addr, long data) */ case PTRACE_POKETEXT: case PTRACE_POKEDATA: - ret = access_process_vm(child, addr, &data, sizeof(data), 1); - if (ret == sizeof(data)) { - ret = 0; - if (request == PTRACE_POKETEXT) { - invalidate_cache(); - } - } else { - ret = -EIO; - } + ret = generic_ptrace_pokedata(child, addr, data); + if (ret == 0 && request == PTRACE_POKETEXT) + invalidate_cache(); break; /* diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S index 4e2d5b9f0a9a..942a8c7a4417 100644 --- a/arch/m32r/kernel/vmlinux.lds.S +++ b/arch/m32r/kernel/vmlinux.lds.S @@ -110,10 +110,7 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(4096); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(4096) . = ALIGN(4096); __init_end = .; /* freed after init ends here */ diff --git a/arch/m32r/mm/fault.c b/arch/m32r/mm/fault.c index f3935ba24946..676a1c443d28 100644 --- a/arch/m32r/mm/fault.c +++ b/arch/m32r/mm/fault.c @@ -80,6 +80,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, struct vm_area_struct * vma; unsigned long page, addr; int write; + int fault; siginfo_t info; /* @@ -195,20 +196,18 @@ survive: */ addr = (address & PAGE_MASK); set_thread_fault_code(error_code); - switch (handle_mm_fault(mm, vma, addr, write)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: + fault = handle_mm_fault(mm, vma, addr, write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) goto out_of_memory; - default: - BUG(); + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; set_thread_fault_code(0); up_read(&mm->mmap_sem); return; diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index cdba9fd6d82f..2cf0690b7882 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c @@ -128,10 +128,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ case PTRACE_PEEKDATA: - i = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - if (i != sizeof(tmp)) - goto out_eio; - ret = put_user(tmp, (unsigned long *)data); + ret = generic_ptrace_peekdata(child, addr, data); break; /* read the word at location addr in the USER area. */ @@ -160,8 +157,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - if (access_process_vm(child, addr, &data, sizeof(data), 1) != sizeof(data)) - goto out_eio; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index a27a4fa33296..4e2752a0e89b 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -1170,6 +1170,7 @@ void die_if_kernel (char *str, struct pt_regs *fp, int nr) console_verbose(); printk("%s: %08x\n",str,nr); show_registers(fp); + add_taint(TAINT_DIE); do_exit(SIGSEGV); } diff --git a/arch/m68k/lib/checksum.c b/arch/m68k/lib/checksum.c index cf6bb51945a2..6216f12a756b 100644 --- a/arch/m68k/lib/checksum.c +++ b/arch/m68k/lib/checksum.c @@ -422,3 +422,4 @@ csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) ); return(sum); } +EXPORT_SYMBOL(csum_partial_copy_nocheck); diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c index 2adbeb16e1b8..578b48f47b9e 100644 --- a/arch/m68k/mm/fault.c +++ b/arch/m68k/mm/fault.c @@ -159,18 +159,17 @@ good_area: #ifdef DEBUG printk("handle_mm_fault returns %d\n",fault); #endif - switch (fault) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto bus_err; - default: - goto out_of_memory; + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto bus_err; + BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); return 0; diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig index adc64a2bafbb..1175ceff8b2a 100644 --- a/arch/m68knommu/Kconfig +++ b/arch/m68knommu/Kconfig @@ -45,6 +45,10 @@ config GENERIC_HWEIGHT bool default y +config GENERIC_HARDIRQS + bool + default y + config GENERIC_CALIBRATE_DELAY bool default y diff --git a/arch/m68knommu/kernel/Makefile b/arch/m68knommu/kernel/Makefile index 1c6cd1ab571e..1524b39ad63f 100644 --- a/arch/m68knommu/kernel/Makefile +++ b/arch/m68knommu/kernel/Makefile @@ -4,8 +4,8 @@ extra-y := vmlinux.lds -obj-y += dma.o entry.o init_task.o m68k_ksyms.o process.o ptrace.o semaphore.o \ - setup.o signal.o syscalltable.o sys_m68k.o time.o traps.o +obj-y += dma.o entry.o init_task.o irq.o m68k_ksyms.o process.o ptrace.o \ + semaphore.o setup.o signal.o syscalltable.o sys_m68k.o time.o traps.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_COMEMPCI) += comempci.o diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68knommu/kernel/asm-offsets.c index 7cd183d346ef..d97b89bae53c 100644 --- a/arch/m68knommu/kernel/asm-offsets.c +++ b/arch/m68knommu/kernel/asm-offsets.c @@ -15,7 +15,6 @@ #include <linux/hardirq.h> #include <asm/bootinfo.h> #include <asm/irq.h> -#include <asm/irqnode.h> #include <asm/thread_info.h> #define DEFINE(sym, val) \ @@ -72,10 +71,6 @@ int main(void) #else /* bitfields are a bit difficult */ DEFINE(PT_VECTOR, offsetof(struct pt_regs, pc) + 4); - /* offsets into the irq_handler struct */ - DEFINE(IRQ_HANDLER, offsetof(struct irq_node, handler)); - DEFINE(IRQ_DEVID, offsetof(struct irq_node, dev_id)); - DEFINE(IRQ_NEXT, offsetof(struct irq_node, next)); #endif /* offsets into the kernel_stat struct */ diff --git a/arch/m68knommu/kernel/irq.c b/arch/m68knommu/kernel/irq.c new file mode 100644 index 000000000000..bba1bb48a21f --- /dev/null +++ b/arch/m68knommu/kernel/irq.c @@ -0,0 +1,82 @@ +/* + * irq.c + * + * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/kernel_stat.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/seq_file.h> +#include <asm/system.h> +#include <asm/traps.h> + +asmlinkage void do_IRQ(int irq, struct pt_regs *regs) +{ + struct pt_regs *oldregs = set_irq_regs(regs); + + irq_enter(); + __do_IRQ(irq); + irq_exit(); + + set_irq_regs(oldregs); +} + +void ack_bad_irq(unsigned int irq) +{ + printk(KERN_ERR "IRQ: unexpected irq=%d\n", irq); +} + +static struct irq_chip m_irq_chip = { + .name = "M68K-INTC", + .enable = enable_vector, + .disable = disable_vector, + .ack = ack_vector, +}; + +void __init init_IRQ(void) +{ + int irq; + + init_vectors(); + + for (irq = 0; (irq < NR_IRQS); irq++) { + irq_desc[irq].status = IRQ_DISABLED; + irq_desc[irq].action = NULL; + irq_desc[irq].depth = 1; + irq_desc[irq].chip = &m_irq_chip; + } +} + +int show_interrupts(struct seq_file *p, void *v) +{ + struct irqaction *ap; + int irq = *((loff_t *) v); + + if (irq == 0) + seq_puts(p, " CPU0\n"); + + if (irq < NR_IRQS) { + ap = irq_desc[irq].action; + if (ap) { + seq_printf(p, "%3d: ", irq); + seq_printf(p, "%10u ", kstat_irqs(irq)); + seq_printf(p, "%14s ", irq_desc[irq].chip->name); + + seq_printf(p, "%s", ap->name); + for (ap = ap->next; ap; ap = ap->next) + seq_printf(p, ", %s", ap->name); + seq_putc(p, '\n'); + } + } + + return 0; +} + diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68knommu/kernel/m68k_ksyms.c index 25327c9eadd7..f795062aba1e 100644 --- a/arch/m68knommu/kernel/m68k_ksyms.c +++ b/arch/m68knommu/kernel/m68k_ksyms.c @@ -81,8 +81,6 @@ EXPORT_SYMBOL(__mulsi3); EXPORT_SYMBOL(__udivsi3); EXPORT_SYMBOL(__umodsi3); -EXPORT_SYMBOL(is_in_rom); - #ifdef CONFIG_COLDFIRE extern unsigned int *dma_device_address; extern unsigned long dma_base_addr, _ramend; diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c index f54b6a3dfecb..ef70ca070ce2 100644 --- a/arch/m68knommu/kernel/ptrace.c +++ b/arch/m68knommu/kernel/ptrace.c @@ -106,17 +106,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp,(unsigned long *) data); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -159,10 +151,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c index bed5f47bf568..437a061d8b94 100644 --- a/arch/m68knommu/kernel/traps.c +++ b/arch/m68knommu/kernel/traps.c @@ -62,8 +62,6 @@ static char const * const vec_names[] = { void __init trap_init(void) { - if (mach_trap_init) - mach_trap_init(); } void die_if_kernel(char *str, struct pt_regs *fp, int nr) @@ -82,7 +80,8 @@ void die_if_kernel(char *str, struct pt_regs *fp, int nr) printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n", current->comm, current->pid, PAGE_SIZE+(unsigned long)current); - show_stack(NULL, (unsigned long *)fp); + show_stack(NULL, (unsigned long *)(fp + 1)); + add_taint(TAINT_DIE); do_exit(SIGSEGV); } diff --git a/arch/m68knommu/mm/memory.c b/arch/m68knommu/mm/memory.c index 1a66b71035a4..f93b88b51f9f 100644 --- a/arch/m68knommu/mm/memory.c +++ b/arch/m68knommu/mm/memory.c @@ -33,23 +33,3 @@ unsigned long kernel_map(unsigned long paddr, unsigned long size, return paddr; } - -int is_in_rom(unsigned long addr) -{ - extern unsigned long _ramstart, _ramend; - - /* - * What we are really trying to do is determine if addr is - * in an allocated kernel memory region. If not then assume - * we cannot free it or otherwise de-allocate it. Ideally - * we could restrict this to really being in a ROM or flash, - * but that would need to be done on a board by board basis, - * not globally. - */ - if ((addr < _ramstart) || (addr >= _ramend)) - return(1); - - /* Default case, not in ROM */ - return(0); -} - diff --git a/arch/m68knommu/platform/5307/Makefile b/arch/m68knommu/platform/5307/Makefile index 2fd37dcc309b..719a313494bc 100644 --- a/arch/m68knommu/platform/5307/Makefile +++ b/arch/m68knommu/platform/5307/Makefile @@ -16,7 +16,7 @@ ifdef CONFIG_FULLDEBUG AFLAGS += -DDEBUGGER_COMPATIBLE_CACHE=1 endif -obj-$(CONFIG_COLDFIRE) += entry.o vectors.o ints.o +obj-$(CONFIG_COLDFIRE) += entry.o vectors.o obj-$(CONFIG_M5206) += timers.o obj-$(CONFIG_M5206e) += timers.o obj-$(CONFIG_M520x) += pit.o diff --git a/arch/m68knommu/platform/5307/entry.S b/arch/m68knommu/platform/5307/entry.S index f0dba84d9101..c358aebe0af3 100644 --- a/arch/m68knommu/platform/5307/entry.S +++ b/arch/m68knommu/platform/5307/entry.S @@ -1,7 +1,7 @@ /* * linux/arch/m68knommu/platform/5307/entry.S * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com) * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, * Kenneth Albanowski <kjahds@kjahds.com>, * Copyright (C) 2000 Lineo Inc. (www.lineo.com) @@ -155,34 +155,21 @@ Lsignal_return: /* * This is the generic interrupt handler (for all hardware interrupt - * sources). It figures out the vector number and calls the appropriate - * interrupt service routine directly. + * sources). Calls upto high level code to do all the work. */ ENTRY(inthandler) SAVE_ALL moveq #-1,%d0 movel %d0,%sp@(PT_ORIG_D0) - addql #1,local_irq_count movew %sp@(PT_FORMATVEC),%d0 /* put exception # in d0 */ andl #0x03fc,%d0 /* mask out vector only */ - leal per_cpu__kstat+STAT_IRQ,%a0 - addql #1,%a0@(%d0) - + movel %sp,%sp@- /* push regs arg */ lsrl #2,%d0 /* calculate real vector # */ - movel %d0,%d1 /* calculate array offset */ - lsll #4,%d1 - lea irq_list,%a0 - addl %d1,%a0 /* pointer to array struct */ - - movel %sp,%sp@- /* push regs arg onto stack */ - movel %a0@(8),%sp@- /* push devid arg */ - movel %d0,%sp@- /* push vector # on stack */ - - movel %a0@,%a0 /* get function to call */ - jbsr %a0@ /* call vector handler */ - lea %sp@(12),%sp /* pop parameters off stack */ + movel %d0,%sp@- /* push vector number */ + jbsr do_IRQ /* call high level irq handler */ + lea %sp@(8),%sp /* pop args off stack */ bra ret_from_interrupt /* this was fallthrough */ @@ -198,24 +185,15 @@ ENTRY(fasthandler) movew %sp@(PT_FORMATVEC),%d0 andl #0x03fc,%d0 /* mask out vector only */ - leal per_cpu__kstat+STAT_IRQ,%a0 - addql #1,%a0@(%d0) - - movel %sp,%sp@- /* push regs arg onto stack */ - clrl %sp@- /* push devid arg */ + movel %sp,%sp@- /* push regs arg */ lsrl #2,%d0 /* calculate real vector # */ - movel %d0,%sp@- /* push vector # on stack */ - - lsll #4,%d0 /* adjust for array offset */ - lea irq_list,%a0 - movel %a0@(%d0),%a0 /* get function to call */ - jbsr %a0@ /* call vector handler */ - lea %sp@(12),%sp /* pop parameters off stack */ + movel %d0,%sp@- /* push vector number */ + jbsr do_IRQ /* call high level irq handler */ + lea %sp@(8),%sp /* pop args off stack */ RESTORE_LOCAL ENTRY(ret_from_interrupt) - subql #1,local_irq_count jeq 2f 1: RESTORE_ALL diff --git a/arch/m68knommu/platform/5307/ints.c b/arch/m68knommu/platform/5307/ints.c deleted file mode 100644 index 751633038c4b..000000000000 --- a/arch/m68knommu/platform/5307/ints.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/ints.c -- General interrupt handling code - * - * Copyright (C) 1999-2002 Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 2000 Lineo Inc. (www.lineo.com) - * - * Based on: - * - * linux/arch/m68k/kernel/ints.c -- Linux/m68k general interrupt handling code - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/errno.h> -#include <linux/seq_file.h> - -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/irqnode.h> -#include <asm/traps.h> -#include <asm/page.h> -#include <asm/machdep.h> - -/* - * This table stores the address info for each vector handler. - */ -struct irq_entry irq_list[SYS_IRQS]; - -#define NUM_IRQ_NODES 16 -static irq_node_t nodes[NUM_IRQ_NODES]; - -/* The number of spurious interrupts */ -volatile unsigned int num_spurious; - -unsigned int local_irq_count[NR_CPUS]; - -static irqreturn_t default_irq_handler(int irq, void *ptr) -{ -#if 1 - printk(KERN_INFO "%s(%d): default irq handler vec=%d [0x%x]\n", - __FILE__, __LINE__, irq, irq); -#endif - return(IRQ_HANDLED); -} - -/* - * void init_IRQ(void) - * - * Parameters: None - * - * Returns: Nothing - * - * This function should be called during kernel startup to initialize - * the IRQ handling routines. - */ - -void __init init_IRQ(void) -{ - int i; - - for (i = 0; i < SYS_IRQS; i++) { - if (mach_default_handler) - irq_list[i].handler = mach_default_handler; - else - irq_list[i].handler = default_irq_handler; - irq_list[i].flags = IRQ_FLG_STD; - irq_list[i].dev_id = NULL; - irq_list[i].devname = NULL; - } - - for (i = 0; i < NUM_IRQ_NODES; i++) - nodes[i].handler = NULL; - - if (mach_init_IRQ) - mach_init_IRQ(); -} - -irq_node_t *new_irq_node(void) -{ - irq_node_t *node; - short i; - - for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) - if (!node->handler) - return node; - - printk(KERN_INFO "new_irq_node: out of nodes\n"); - return NULL; -} - -int request_irq( - unsigned int irq, - irq_handler_t handler, - unsigned long flags, - const char *devname, - void *dev_id) -{ - if (irq < 0 || irq >= NR_IRQS) { - printk(KERN_WARNING "%s: Incorrect IRQ %d from %s\n", __FUNCTION__, - irq, devname); - return -ENXIO; - } - - if (!(irq_list[irq].flags & IRQ_FLG_STD)) { - if (irq_list[irq].flags & IRQ_FLG_LOCK) { - printk(KERN_WARNING "%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_list[irq].devname); - return -EBUSY; - } - if (flags & IRQ_FLG_REPLACE) { - printk(KERN_WARNING "%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_list[irq].devname); - return -EBUSY; - } - } - - if (flags & IRQ_FLG_FAST) { - extern asmlinkage void fasthandler(void); - extern void set_evector(int vecnum, void (*handler)(void)); - set_evector(irq, fasthandler); - } - - irq_list[irq].handler = handler; - irq_list[irq].flags = flags; - irq_list[irq].dev_id = dev_id; - irq_list[irq].devname = devname; - return 0; -} - -EXPORT_SYMBOL(request_irq); - -void free_irq(unsigned int irq, void *dev_id) -{ - if (irq >= NR_IRQS) { - printk(KERN_WARNING "%s: Incorrect IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (irq_list[irq].dev_id != dev_id) - printk(KERN_WARNING "%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_list[irq].devname); - - if (irq_list[irq].flags & IRQ_FLG_FAST) { - extern asmlinkage void inthandler(void); - extern void set_evector(int vecnum, void (*handler)(void)); - set_evector(irq, inthandler); - } - - if (mach_default_handler) - irq_list[irq].handler = mach_default_handler; - else - irq_list[irq].handler = default_irq_handler; - irq_list[irq].flags = IRQ_FLG_STD; - irq_list[irq].dev_id = NULL; - irq_list[irq].devname = NULL; -} - -EXPORT_SYMBOL(free_irq); - - -int sys_request_irq(unsigned int irq, irq_handler_t handler, - unsigned long flags, const char *devname, void *dev_id) -{ - if (irq > IRQ7) { - printk(KERN_WARNING "%s: Incorrect IRQ %d from %s\n", - __FUNCTION__, irq, devname); - return -ENXIO; - } - -#if 0 - if (!(irq_list[irq].flags & IRQ_FLG_STD)) { - if (irq_list[irq].flags & IRQ_FLG_LOCK) { - printk(KERN_WARNING "%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, irq_list[irq].devname); - return -EBUSY; - } - if (!(flags & IRQ_FLG_REPLACE)) { - printk(KERN_WARNING "%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, irq_list[irq].devname); - return -EBUSY; - } - } -#endif - - irq_list[irq].handler = handler; - irq_list[irq].flags = flags; - irq_list[irq].dev_id = dev_id; - irq_list[irq].devname = devname; - return 0; -} - -void sys_free_irq(unsigned int irq, void *dev_id) -{ - if (irq > IRQ7) { - printk(KERN_WARNING "%s: Incorrect IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (irq_list[irq].dev_id != dev_id) - printk(KERN_WARNING "%s: Removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, irq_list[irq].devname); - - irq_list[irq].handler = mach_default_handler; - irq_list[irq].flags = 0; - irq_list[irq].dev_id = NULL; - irq_list[irq].devname = NULL; -} - -/* - * Do we need these probe functions on the m68k? - * - * ... may be useful with ISA devices - */ -unsigned long probe_irq_on (void) -{ - return 0; -} - -EXPORT_SYMBOL(probe_irq_on); - -int probe_irq_off (unsigned long irqs) -{ - return 0; -} - -EXPORT_SYMBOL(probe_irq_off); - -asmlinkage void process_int(unsigned long vec, struct pt_regs *fp) -{ - if (vec >= VEC_INT1 && vec <= VEC_INT7) { - vec -= VEC_SPUR; - kstat_cpu(0).irqs[vec]++; - irq_list[vec].handler(vec, irq_list[vec].dev_id); - } else { - if (mach_process_int) - mach_process_int(vec, fp); - else - panic("Can't process interrupt vector %ld\n", vec); - return; - } -} - - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v; - - if (i < NR_IRQS) { - if (! (irq_list[i].flags & IRQ_FLG_STD)) { - seq_printf(p, "%3d: %10u ", i, - (i ? kstat_cpu(0).irqs[i] : num_spurious)); - if (irq_list[i].flags & IRQ_FLG_LOCK) - seq_printf(p, "L "); - else - seq_printf(p, " "); - seq_printf(p, "%s\n", irq_list[i].devname); - } - } - - if (i == NR_IRQS && mach_get_irq_list) - mach_get_irq_list(p, v); - return 0; -} - -void init_irq_proc(void) -{ - /* Insert /proc/irq driver here */ -} - diff --git a/arch/m68knommu/platform/5307/vectors.c b/arch/m68knommu/platform/5307/vectors.c index 2a8b0d044ce5..6cf894620234 100644 --- a/arch/m68knommu/platform/5307/vectors.c +++ b/arch/m68knommu/platform/5307/vectors.c @@ -3,23 +3,17 @@ /* * linux/arch/m68knommu/platform/5307/vectors.c * - * Copyright (C) 1999-2003, Greg Ungerer <gerg@snapgear.com> + * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com> */ /***************************************************************************/ #include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/param.h> #include <linux/init.h> -#include <linux/unistd.h> -#include <linux/delay.h> -#include <asm/irq.h> -#include <asm/dma.h> +#include <linux/irq.h> #include <asm/traps.h> #include <asm/machdep.h> #include <asm/coldfire.h> -#include <asm/mcftimer.h> #include <asm/mcfsim.h> #include <asm/mcfdma.h> #include <asm/mcfwdebug.h> @@ -56,7 +50,7 @@ asmlinkage void trap(void); asmlinkage void system_call(void); asmlinkage void inthandler(void); -void __init coldfire_trap_init(void) +void __init init_vectors(void) { int i; @@ -86,6 +80,23 @@ void __init coldfire_trap_init(void) /***************************************************************************/ +void enable_vector(unsigned int irq) +{ + /* Currently no action on ColdFire */ +} + +void disable_vector(unsigned int irq) +{ + /* Currently no action on ColdFire */ +} + +void ack_vector(unsigned int irq) +{ + /* Currently no action on ColdFire */ +} + +/***************************************************************************/ + void coldfire_reset(void) { HARD_RESET_NOW(); diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68knommu/platform/68328/entry.S index f97862715450..b1aef72f3baf 100644 --- a/arch/m68knommu/platform/68328/entry.S +++ b/arch/m68knommu/platform/68328/entry.S @@ -133,7 +133,6 @@ Lreturn: */ inthandler1: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -145,7 +144,6 @@ inthandler1: inthandler2: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -157,7 +155,6 @@ inthandler2: inthandler3: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -169,7 +166,6 @@ inthandler3: inthandler4: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -181,7 +177,6 @@ inthandler4: inthandler5: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -193,7 +188,6 @@ inthandler5: inthandler6: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -205,7 +199,6 @@ inthandler6: inthandler7: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -217,7 +210,6 @@ inthandler7: inthandler: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and #0x3ff, %d0 @@ -228,7 +220,6 @@ inthandler: bra ret_from_interrupt ret_from_interrupt: - subql #1,local_irq_count jeq 1f 2: RESTORE_ALL @@ -238,7 +229,6 @@ ret_from_interrupt: jhi 2b /* check if we need to do software interrupts */ - movel local_irq_count,%d0 jeq ret_from_exception pea ret_from_exception diff --git a/arch/m68knommu/platform/68328/ints.c b/arch/m68knommu/platform/68328/ints.c index 3de6e337554e..72e56d554f4f 100644 --- a/arch/m68knommu/platform/68328/ints.c +++ b/arch/m68knommu/platform/68328/ints.c @@ -9,21 +9,14 @@ * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com> */ -#include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <linux/errno.h> +#include <linux/init.h> #include <linux/interrupt.h> - -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/irqnode.h> +#include <linux/irq.h> #include <asm/traps.h> #include <asm/io.h> #include <asm/machdep.h> -#include <asm/setup.h> #if defined(CONFIG_M68328) #include <asm/MC68328.h> @@ -79,16 +72,12 @@ extern e_vector *_ramvec; /* The number of spurious interrupts */ volatile unsigned int num_spurious; -unsigned int local_irq_count[NR_CPUS]; - -/* irq node variables for the 32 (potential) on chip sources */ -static irq_node_t int_irq_list[NR_IRQS]; /* * This function should be called during kernel startup to initialize - * the IRQ handling routines. + * the machine vector table. */ -void init_IRQ(void) +void __init init_vectors(void) { int i; @@ -108,96 +97,10 @@ void init_IRQ(void) IVR = 0x40; /* Set DragonBall IVR (interrupt base) to 64 */ - /* initialize handlers */ - for (i = 0; i < NR_IRQS; i++) { - int_irq_list[i].handler = bad_interrupt; - int_irq_list[i].flags = IRQ_FLG_STD; - int_irq_list[i].dev_id = NULL; - int_irq_list[i].devname = NULL; - } - /* turn off all interrupts */ IMR = ~0; } -int request_irq( - unsigned int irq, - irq_handler_t handler, - unsigned long flags, - const char *devname, - void *dev_id) -{ - if (irq >= NR_IRQS) { - printk (KERN_ERR "%s: Unknown IRQ %d from %s\n", __FUNCTION__, irq, devname); - return -ENXIO; - } - - if (!(int_irq_list[irq].flags & IRQ_FLG_STD)) { - if (int_irq_list[irq].flags & IRQ_FLG_LOCK) { - printk(KERN_ERR "%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, int_irq_list[irq].devname); - return -EBUSY; - } - if (flags & IRQ_FLG_REPLACE) { - printk(KERN_ERR "%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, int_irq_list[irq].devname); - return -EBUSY; - } - } - - int_irq_list[irq].handler = handler; - int_irq_list[irq].flags = flags; - int_irq_list[irq].dev_id = dev_id; - int_irq_list[irq].devname = devname; - - IMR &= ~(1<<irq); - - return 0; -} - -EXPORT_SYMBOL(request_irq); - -void free_irq(unsigned int irq, void *dev_id) -{ - if (irq >= NR_IRQS) { - printk (KERN_ERR "%s: Unknown IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (int_irq_list[irq].dev_id != dev_id) - printk(KERN_INFO "%s: removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, int_irq_list[irq].devname); - - int_irq_list[irq].handler = bad_interrupt; - int_irq_list[irq].flags = IRQ_FLG_STD; - int_irq_list[irq].dev_id = NULL; - int_irq_list[irq].devname = NULL; - - IMR |= 1<<irq; -} - -EXPORT_SYMBOL(free_irq); - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v; - - if (i < NR_IRQS) { - if (int_irq_list[i].devname) { - seq_printf(p, "%3d: %10u ", i, kstat_cpu(0).irqs[i]); - if (int_irq_list[i].flags & IRQ_FLG_LOCK) - seq_printf(p, "L "); - else - seq_printf(p, " "); - seq_printf(p, "%s\n", int_irq_list[i].devname); - } - } - if (i == NR_IRQS) - seq_printf(p, " : %10u spurious\n", num_spurious); - - return 0; -} - /* The 68k family did not have a good way to determine the source * of interrupts until later in the family. The EC000 core does * not provide the vector number on the stack, we vector everything @@ -255,14 +158,23 @@ void process_int(int vec, struct pt_regs *fp) irq++; } - kstat_cpu(0).irqs[irq]++; - - if (int_irq_list[irq].handler) { - int_irq_list[irq].handler(irq, int_irq_list[irq].dev_id, fp); - } else { - printk(KERN_ERR "unregistered interrupt %d!\nTurning it off in the IMR...\n", irq); - IMR |= mask; - } + do_IRQ(irq, fp); pend &= ~mask; } } + +void enable_vector(unsigned int irq) +{ + IMR &= ~(1<<irq); +} + +void disable_vector(unsigned int irq) +{ + IMR |= (1<<irq); +} + +void ack_vector(unsigned int irq) +{ + /* Nothing needed */ +} + diff --git a/arch/m68knommu/platform/68360/entry.S b/arch/m68knommu/platform/68360/entry.S index f1af8977f294..55dfefe38642 100644 --- a/arch/m68knommu/platform/68360/entry.S +++ b/arch/m68knommu/platform/68360/entry.S @@ -120,23 +120,21 @@ Lreturn: RESTORE_ALL /* - * This is the main interrupt handler, responsible for calling process_int() + * This is the main interrupt handler, responsible for calling do_IRQ() */ inthandler: SAVE_ALL - addql #1,local_irq_count /* put exception # in d0*/ movew %sp@(PT_VECTOR), %d0 and.l #0x3ff, %d0 lsr.l #0x02, %d0 movel %sp,%sp@- movel %d0,%sp@- /* put vector # on stack*/ - jbsr process_int /* process the IRQ*/ + jbsr do_IRQ /* process the IRQ*/ 3: addql #8,%sp /* pop parameters off stack*/ bra ret_from_interrupt ret_from_interrupt: - subql #1,local_irq_count jeq 1f 2: RESTORE_ALL diff --git a/arch/m68knommu/platform/68360/ints.c b/arch/m68knommu/platform/68360/ints.c index 4df3c146eb74..c36781157e09 100644 --- a/arch/m68knommu/platform/68360/ints.c +++ b/arch/m68knommu/platform/68360/ints.c @@ -10,20 +10,13 @@ * Copyright (c) 1999 D. Jeff Dionne <jeff@uclinux.org> */ -#include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <linux/errno.h> - -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/irqnode.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> #include <asm/traps.h> -#include <asm/io.h> #include <asm/machdep.h> -#include <asm/setup.h> #include <asm/m68360.h> /* from quicc/commproc.c: */ @@ -36,26 +29,19 @@ extern void cpm_interrupt_init(void); asmlinkage void system_call(void); asmlinkage void buserr(void); asmlinkage void trap(void); -asmlinkage irqreturn_t bad_interrupt(void); -asmlinkage irqreturn_t inthandler(void); +asmlinkage void bad_interrupt(void); +asmlinkage void inthandler(void); extern void *_ramvec[]; /* The number of spurious interrupts */ volatile unsigned int num_spurious; -unsigned int local_irq_count[NR_CPUS]; - -/* irq node variables for the 32 (potential) on chip sources */ -static irq_node_t int_irq_list[INTERNAL_IRQS]; - -static short int_irq_ablecount[INTERNAL_IRQS]; /* * This function should be called during kernel startup to initialize - * IRQ handling routines. + * the vector table. */ - -void init_IRQ(void) +void init_vectors(void) { int i; int vba = (CPM_VECTOR_BASE<<4); @@ -79,7 +65,6 @@ void init_IRQ(void) _ramvec[32] = system_call; _ramvec[33] = trap; - cpm_interrupt_init(); /* set up CICR for vector base address and irq level */ @@ -124,212 +109,20 @@ void init_IRQ(void) /* turn off all CPM interrupts */ pquicc->intr_cimr = 0x00000000; - - /* initialize handlers */ - for (i = 0; i < INTERNAL_IRQS; i++) { - int_irq_list[i].handler = NULL; - int_irq_list[i].flags = IRQ_FLG_STD; - int_irq_list[i].dev_id = NULL; - int_irq_list[i].devname = NULL; - } -} - -#if 0 -void M68360_insert_irq(irq_node_t **list, irq_node_t *node) -{ - unsigned long flags; - irq_node_t *cur; - - if (!node->dev_id) - printk(KERN_INFO "%s: Warning: dev_id of %s is zero\n", - __FUNCTION__, node->devname); - - local_irq_save(flags); - - cur = *list; - - while (cur) { - list = &cur->next; - cur = cur->next; - } - - node->next = cur; - *list = node; - - local_irq_restore(flags); } -void M68360_delete_irq(irq_node_t **list, void *dev_id) +void enable_vector(unsigned int irq) { - unsigned long flags; - irq_node_t *node; - - local_irq_save(flags); - - for (node = *list; node; list = &node->next, node = *list) { - if (node->dev_id == dev_id) { - *list = node->next; - /* Mark it as free. */ - node->handler = NULL; - local_irq_restore(flags); - return; - } - } - local_irq_restore(flags); - printk (KERN_INFO "%s: tried to remove invalid irq\n", __FUNCTION__); + pquicc->intr_cimr |= (1 << irq); } -#endif -int request_irq( - unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long flags, - const char *devname, - void *dev_id) +void disable_vector(unsigned int irq) { - int mask = (1<<irq); - - irq += (CPM_VECTOR_BASE<<4); - - if (irq >= INTERNAL_IRQS) { - printk (KERN_ERR "%s: Unknown IRQ %d from %s\n", __FUNCTION__, irq, devname); - return -ENXIO; - } - - if (!(int_irq_list[irq].flags & IRQ_FLG_STD)) { - if (int_irq_list[irq].flags & IRQ_FLG_LOCK) { - printk(KERN_ERR "%s: IRQ %d from %s is not replaceable\n", - __FUNCTION__, irq, int_irq_list[irq].devname); - return -EBUSY; - } - if (flags & IRQ_FLG_REPLACE) { - printk(KERN_ERR "%s: %s can't replace IRQ %d from %s\n", - __FUNCTION__, devname, irq, int_irq_list[irq].devname); - return -EBUSY; - } - } - int_irq_list[irq].handler = handler; - int_irq_list[irq].flags = flags; - int_irq_list[irq].dev_id = dev_id; - int_irq_list[irq].devname = devname; - - /* enable in the CIMR */ - if (!int_irq_ablecount[irq]) - pquicc->intr_cimr |= mask; - /* *(volatile unsigned long *)0xfffff304 &= ~(1<<irq); */ - - return 0; + pquicc->intr_cimr &= ~(1 << irq); } -EXPORT_SYMBOL(request_irq); - -void free_irq(unsigned int irq, void *dev_id) +void ack_vector(unsigned int irq) { - if (irq >= INTERNAL_IRQS) { - printk (KERN_ERR "%s: Unknown IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (int_irq_list[irq].dev_id != dev_id) - printk(KERN_INFO "%s: removing probably wrong IRQ %d from %s\n", - __FUNCTION__, irq, int_irq_list[irq].devname); - int_irq_list[irq].handler = NULL; - int_irq_list[irq].flags = IRQ_FLG_STD; - int_irq_list[irq].dev_id = NULL; - int_irq_list[irq].devname = NULL; - - *(volatile unsigned long *)0xfffff304 |= 1<<irq; + pquicc->intr_cisr = (1 << irq); } -EXPORT_SYMBOL(free_irq); - -#if 0 -/* - * Enable/disable a particular machine specific interrupt source. - * Note that this may affect other interrupts in case of a shared interrupt. - * This function should only be called for a _very_ short time to change some - * internal data, that may not be changed by the interrupt at the same time. - * int_(enable|disable)_irq calls may also be nested. - */ -void M68360_enable_irq(unsigned int irq) -{ - if (irq >= INTERNAL_IRQS) { - printk(KERN_ERR "%s: Unknown IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (--int_irq_ablecount[irq]) - return; - - /* enable the interrupt */ - *(volatile unsigned long *)0xfffff304 &= ~(1<<irq); -} - -void M68360_disable_irq(unsigned int irq) -{ - if (irq >= INTERNAL_IRQS) { - printk(KERN_ERR "%s: Unknown IRQ %d\n", __FUNCTION__, irq); - return; - } - - if (int_irq_ablecount[irq]++) - return; - - /* disable the interrupt */ - *(volatile unsigned long *)0xfffff304 |= 1<<irq; -} -#endif - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v; - - if (i < NR_IRQS) { - if (int_irq_list[i].devname) { - seq_printf(p, "%3d: %10u ", i, kstat_cpu(0).irqs[i]); - if (int_irq_list[i].flags & IRQ_FLG_LOCK) - seq_printf(p, "L "); - else - seq_printf(p, " "); - seq_printf(p, "%s\n", int_irq_list[i].devname); - } - } - if (i == NR_IRQS) - seq_printf(p, " : %10u spurious\n", num_spurious); - - return 0; -} - -/* The 68k family did not have a good way to determine the source - * of interrupts until later in the family. The EC000 core does - * not provide the vector number on the stack, we vector everything - * into one vector and look in the blasted mask register... - * This code is designed to be fast, almost constant time, not clean! - */ -void process_int(int vec, struct pt_regs *fp) -{ - int irq; - int mask; - - /* unsigned long pend = *(volatile unsigned long *)0xfffff30c; */ - - /* irq = vec + (CPM_VECTOR_BASE<<4); */ - irq = vec; - - /* unsigned long pend = *(volatile unsigned long *)pquicc->intr_cipr; */ - - /* Bugger all that weirdness. For the moment, I seem to know where I came from; - * vec is passed from a specific ISR, so I'll use it. */ - - if (int_irq_list[irq].handler) { - int_irq_list[irq].handler(irq , int_irq_list[irq].dev_id, fp); - kstat_cpu(0).irqs[irq]++; - pquicc->intr_cisr = (1 << vec); /* indicate that irq has been serviced */ - } else { - printk(KERN_ERR "unregistered interrupt %d!\nTurning it off in the CIMR...\n", irq); - /* *(volatile unsigned long *)0xfffff304 |= mask; */ - pquicc->intr_cimr &= ~(1 << vec); - num_spurious += 1; - } - return(IRQ_HANDLED); -} diff --git a/arch/mips/basler/excite/excite_setup.c b/arch/mips/basler/excite/excite_setup.c index 2f0e4c08eb04..56003188f17c 100644 --- a/arch/mips/basler/excite/excite_setup.c +++ b/arch/mips/basler/excite/excite_setup.c @@ -26,6 +26,7 @@ #include <linux/tty.h> #include <linux/serial_core.h> #include <linux/serial.h> +#include <linux/serial_8250.h> #include <linux/ioport.h> #include <linux/spinlock.h> #include <asm/bootinfo.h> diff --git a/arch/mips/gt64120/wrppmc/setup.c b/arch/mips/gt64120/wrppmc/setup.c index ea965529e5e0..ed58c13b6032 100644 --- a/arch/mips/gt64120/wrppmc/setup.c +++ b/arch/mips/gt64120/wrppmc/setup.c @@ -14,6 +14,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/pm.h> #include <asm/io.h> diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index b5a7b46bbc49..893e7bccf226 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -174,17 +174,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp,(unsigned long __user *) data); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* Read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -313,11 +305,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) - == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: { diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 37c562c4c817..ce277cb34dd0 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -326,6 +326,7 @@ void __noreturn die(const char * str, struct pt_regs * regs) #endif /* CONFIG_MIPS_MT_SMTC */ printk("%s[#%d]:\n", str, ++die_counter); show_registers(regs); + add_taint(TAINT_DIE); spin_unlock_irq(&die_lock); if (in_interrupt()) diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index 9b9992cd562a..bc9bae2a73f4 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -119,10 +119,7 @@ SECTIONS .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; #endif - . = ALIGN(_PAGE_SIZE); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(_PAGE_SIZE) . = ALIGN(_PAGE_SIZE); __init_end = .; /* freed after init ends here */ diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c index 1cc6ebbedfdd..c68358a476dd 100644 --- a/arch/mips/mips-boards/atlas/atlas_setup.c +++ b/arch/mips/mips-boards/atlas/atlas_setup.c @@ -22,6 +22,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/cpu.h> #include <asm/bootinfo.h> diff --git a/arch/mips/mips-boards/sead/sead_setup.c b/arch/mips/mips-boards/sead/sead_setup.c index bb801409d39b..5f70eaf01fab 100644 --- a/arch/mips/mips-boards/sead/sead_setup.c +++ b/arch/mips/mips-boards/sead/sead_setup.c @@ -23,6 +23,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/cpu.h> #include <asm/bootinfo.h> diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c index 60e66906be65..17819b594105 100644 --- a/arch/mips/mipssim/sim_setup.c +++ b/arch/mips/mipssim/sim_setup.c @@ -26,6 +26,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/cpu.h> #include <asm/bootinfo.h> diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index 7ebea331edb8..521771b373de 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c @@ -39,6 +39,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, struct mm_struct *mm = tsk->mm; const int field = sizeof(unsigned long) * 2; siginfo_t info; + int fault; #if 0 printk("Cpu%d[%s:%d:%0*lx:%ld:%0*lx]\n", raw_smp_processor_id(), @@ -102,20 +103,18 @@ survive: * make sure we exit gracefully rather than endlessly redo * the fault. */ - switch (handle_mm_fault(mm, vma, address, write)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/mips/pmc-sierra/msp71xx/msp_serial.c b/arch/mips/pmc-sierra/msp71xx/msp_serial.c index c41b53faa8f6..e25bac537d77 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_serial.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_serial.c @@ -32,6 +32,7 @@ #include <asm/io.h> #include <asm/processor.h> #include <asm/serial.h> +#include <linux/serial_8250.h> #include <msp_prom.h> #include <msp_int.h> diff --git a/arch/mips/pmc-sierra/yosemite/setup.c b/arch/mips/pmc-sierra/yosemite/setup.c index 6a6e15e40009..f7f93ae24c34 100644 --- a/arch/mips/pmc-sierra/yosemite/setup.c +++ b/arch/mips/pmc-sierra/yosemite/setup.c @@ -39,6 +39,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/time.h> #include <asm/bootinfo.h> diff --git a/arch/mips/sibyte/bcm1480/setup.c b/arch/mips/sibyte/bcm1480/setup.c index bdaac34ae708..89f29233cae1 100644 --- a/arch/mips/sibyte/bcm1480/setup.c +++ b/arch/mips/sibyte/bcm1480/setup.c @@ -31,6 +31,7 @@ unsigned int sb1_pass; unsigned int soc_pass; unsigned int soc_type; +EXPORT_SYMBOL(soc_type); unsigned int periph_rev; unsigned int zbbus_mhz; diff --git a/arch/mips/sibyte/sb1250/setup.c b/arch/mips/sibyte/sb1250/setup.c index f4a6169aa0a4..2d5c6d8b41f2 100644 --- a/arch/mips/sibyte/sb1250/setup.c +++ b/arch/mips/sibyte/sb1250/setup.c @@ -31,6 +31,7 @@ unsigned int sb1_pass; unsigned int soc_pass; unsigned int soc_type; +EXPORT_SYMBOL(soc_type); unsigned int periph_rev; unsigned int zbbus_mhz; EXPORT_SYMBOL(zbbus_mhz); diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index 8a0db376e91e..26ec774c5027 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -87,10 +87,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { case PTRACE_PEEKTEXT: /* read word at location addr. */ case PTRACE_PEEKDATA: { - int copied; - #ifdef CONFIG_64BIT if (__is_compat_task(child)) { + int copied; unsigned int tmp; addr &= 0xffffffffL; @@ -105,15 +104,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) } else #endif - { - unsigned long tmp; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - goto out_tsk; - ret = put_user(tmp,(unsigned long *) data); - } + ret = generic_ptrace_peekdata(child, addr, data); goto out_tsk; } diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index f9bca2d74b38..bbf029a184ac 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -264,6 +264,7 @@ KERN_CRIT " || ||\n"); show_regs(regs); dump_stack(); + add_taint(TAINT_DIE); if (in_interrupt()) panic("Fatal exception in interrupt"); diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c index 322167737de7..cf780cb3b916 100644 --- a/arch/parisc/kernel/unwind.c +++ b/arch/parisc/kernel/unwind.c @@ -242,7 +242,7 @@ static void unwind_frame_regs(struct unwind_frame_info *info) #ifdef CONFIG_KALLSYMS /* Handle some frequent special cases.... */ { - char symname[KSYM_NAME_LEN+1]; + char symname[KSYM_NAME_LEN]; char *modname; kallsyms_lookup(info->ip, NULL, NULL, &modname, diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index 4d96ba4b9849..d4e6a93c8d9a 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -181,10 +181,9 @@ SECTIONS .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; #endif - . = ALIGN(ASM_PAGE_SIZE); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + + PERCPU(ASM_PAGE_SIZE) + . = ALIGN(ASM_PAGE_SIZE); __init_end = .; /* freed after init ends here */ diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c index f6f67554c623..7899ab87785a 100644 --- a/arch/parisc/mm/fault.c +++ b/arch/parisc/mm/fault.c @@ -147,6 +147,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code, struct mm_struct *mm = tsk->mm; const struct exception_table_entry *fix; unsigned long acc_type; + int fault; if (in_atomic() || !mm) goto no_context; @@ -173,23 +174,23 @@ good_area: * fault. */ - switch (handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) != 0)) { - case VM_FAULT_MINOR: - ++current->min_flt; - break; - case VM_FAULT_MAJOR: - ++current->maj_flt; - break; - case VM_FAULT_SIGBUS: + fault = handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) != 0); + if (unlikely(fault & VM_FAULT_ERROR)) { /* * We hit a shared mapping outside of the file, or some * other thing happened to us that made us unable to * handle the page fault gracefully. */ - goto bad_area; - default: - goto out_of_memory; + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto bad_area; + BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index e641bb68d871..d860b640a140 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -640,8 +640,8 @@ menu "Instrumentation Support" source "arch/powerpc/oprofile/Kconfig" config KPROBES - bool "Kprobes (EXPERIMENTAL)" - depends on !BOOKE && !4xx && KALLSYMS && EXPERIMENTAL && MODULES + bool "Kprobes" + depends on !BOOKE && !4xx && KALLSYMS && MODULES help Kprobes allows you to trap at almost any kernel address and execute a callback function. register_kprobe() establishes diff --git a/arch/powerpc/boot/dts/mpc8641_hpcn.dts b/arch/powerpc/boot/dts/mpc8641_hpcn.dts index db56a02b748f..6a78a2b37c08 100644 --- a/arch/powerpc/boot/dts/mpc8641_hpcn.dts +++ b/arch/powerpc/boot/dts/mpc8641_hpcn.dts @@ -131,6 +131,7 @@ interrupts = <1d 2 1e 2 22 2>; interrupt-parent = <&mpic>; phy-handle = <&phy0>; + phy-connection-type = "rgmii-id"; }; ethernet@25000 { @@ -150,6 +151,7 @@ interrupts = <23 2 24 2 28 2>; interrupt-parent = <&mpic>; phy-handle = <&phy1>; + phy-connection-type = "rgmii-id"; }; ethernet@26000 { @@ -169,6 +171,7 @@ interrupts = <1F 2 20 2 21 2>; interrupt-parent = <&mpic>; phy-handle = <&phy2>; + phy-connection-type = "rgmii-id"; }; ethernet@27000 { @@ -188,6 +191,7 @@ interrupts = <25 2 26 2 27 2>; interrupt-parent = <&mpic>; phy-handle = <&phy3>; + phy-connection-type = "rgmii-id"; }; serial@4500 { device_type = "serial"; diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 0c96611f02f4..440f5a87271f 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -492,6 +492,13 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, return ret; } +#ifdef CONFIG_PPC64 +unsigned long arch_deref_entry_point(void *entry) +{ + return (unsigned long)(((func_descr_t *)entry)->entry); +} +#endif + int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) { struct jprobe *jp = container_of(p, struct jprobe, kp); @@ -500,11 +507,9 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) memcpy(&kcb->jprobe_saved_regs, regs, sizeof(struct pt_regs)); /* setup return addr to the jprobe handler routine */ + regs->nip = arch_deref_entry_point(jp->entry); #ifdef CONFIG_PPC64 - regs->nip = (unsigned long)(((func_descr_t *)jp->entry)->entry); regs->gpr[2] = (unsigned long)(((func_descr_t *)jp->entry)->toc); -#else - regs->nip = (unsigned long)jp->entry; #endif return 1; diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index c492cee90e0f..6444eaa30a2f 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -248,7 +248,7 @@ static void parse_system_parameter_string(struct seq_file *m) } else { int splpar_strlen; int idx, w_idx; - char *workbuffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL); + char *workbuffer = kzalloc(SPLPAR_MAXLENGTH, GFP_KERNEL); if (!workbuffer) { printk(KERN_ERR "%s %s kmalloc failure at line %d \n", __FILE__, __FUNCTION__, __LINE__); @@ -261,7 +261,6 @@ static void parse_system_parameter_string(struct seq_file *m) splpar_strlen = local_buffer[0] * 256 + local_buffer[1]; local_buffer += 2; /* step over strlen value */ - memset(workbuffer, 0, SPLPAR_MAXLENGTH); w_idx = 0; idx = 0; while ((*local_buffer) && (idx < splpar_strlen)) { diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c index 9536ed7f247c..8ded4e7dc87e 100644 --- a/arch/powerpc/kernel/of_platform.c +++ b/arch/powerpc/kernel/of_platform.c @@ -222,10 +222,9 @@ struct of_device* of_platform_device_create(struct device_node *np, { struct of_device *dev; - dev = kmalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) return NULL; - memset(dev, 0, sizeof(*dev)); dev->node = of_node_get(np); dev->dma_mask = 0xffffffffUL; diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index faf5ef3e90d0..94b4a028232a 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -156,11 +156,14 @@ static DEVICE_ATTR(devspec, S_IRUGO, pci_show_devspec, NULL); #endif /* CONFIG_PPC_OF */ /* Add sysfs properties */ -void pcibios_add_platform_entries(struct pci_dev *pdev) +int pcibios_add_platform_entries(struct pci_dev *pdev) { #ifdef CONFIG_PPC_OF - device_create_file(&pdev->dev, &dev_attr_devspec); + return device_create_file(&pdev->dev, &dev_attr_devspec); +#else + return 0; #endif /* CONFIG_PPC_OF */ + } char __init *pcibios_setup(char *str) diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 0fb53950da43..8a177bd9eab4 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -379,17 +379,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp,(unsigned long __user *) data); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -421,11 +413,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* If I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) - == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; /* write the word at location addr in the USER area */ diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index bc43bba05cf8..6018178708a5 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -350,11 +350,13 @@ void __init setup_system(void) { DBG(" -> setup_system()\n"); - /* Apply CPUs-specific fixups to kernel text (nop out sections - * not relevant to this CPU) + /* Apply the CPUs-specific and firmware specific fixups to kernel + * text (nop out sections not relevant to this CPU or this firmware) */ do_feature_fixups(cur_cpu_spec->cpu_features, &__start___ftr_fixup, &__stop___ftr_fixup); + do_feature_fixups(powerpc_firmware_features, + &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); /* * Unflatten the device-tree passed by prom_init or kexec @@ -392,12 +394,6 @@ void __init setup_system(void) if (ppc_md.init_early) ppc_md.init_early(); - /* Apply firmware specific fixups to kernel text (nop out - * sections not relevant to this firmware) - */ - do_feature_fixups(powerpc_firmware_features, - &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); - /* * We can discover serial ports now since the above did setup the * hash table management for us, thus ioremap works. We do that early diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c index b42cbf1e2d7d..bd85b5fd08c8 100644 --- a/arch/powerpc/kernel/sys_ppc32.c +++ b/arch/powerpc/kernel/sys_ppc32.c @@ -773,6 +773,13 @@ asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4, return sys_truncate(path, (high << 32) | low); } +asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo, + u32 lenhi, u32 lenlo) +{ + return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo, + ((loff_t)lenhi << 32) | lenlo); +} + asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, unsigned long low) { diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 3b8427e6283d..2bb1cb911783 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -149,6 +149,7 @@ int die(const char *str, struct pt_regs *regs, long err) bust_spinlocks(0); die.lock_owner = -1; + add_taint(TAINT_DIE); spin_unlock_irqrestore(&die.lock, flags); if (kexec_should_crash(current) || diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index ae4acd84143d..7a1f5a0964de 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -63,6 +63,8 @@ SECTIONS __stop___ex_table = .; } + NOTES + BUG_TABLE /* @@ -144,6 +146,7 @@ SECTIONS .data.percpu : { __per_cpu_start = .; *(.data.percpu) + *(.data.percpu.shared_aligned) __per_cpu_end = .; } diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 0ece51310bfe..3767211b3d0f 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -145,7 +145,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address, struct mm_struct *mm = current->mm; siginfo_t info; int code = SEGV_MAPERR; - int is_write = 0; + int is_write = 0, ret; int trap = TRAP(regs); int is_exec = trap == 0x400; @@ -330,22 +330,18 @@ good_area: * the fault. */ survive: - switch (handle_mm_fault(mm, vma, address, is_write)) { - - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + ret = handle_mm_fault(mm, vma, address, is_write); + if (unlikely(ret & VM_FAULT_ERROR)) { + if (ret & VM_FAULT_OOM) + goto out_of_memory; + else if (ret & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } - + if (ret & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); return 0; diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c index dc27dab48df0..5a808d611ae3 100644 --- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c +++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c @@ -40,7 +40,7 @@ #include <asm/prom.h> extern void cpm_reset(void); -extern void mpc8xx_show_cpuinfo(struct seq_file*); +extern void mpc8xx_show_cpuinfo(struct seq_file *); extern void mpc8xx_restart(char *cmd); extern void mpc8xx_calibrate_decr(void); extern int mpc8xx_set_rtc_time(struct rtc_time *tm); @@ -48,9 +48,9 @@ extern void mpc8xx_get_rtc_time(struct rtc_time *tm); extern void m8xx_pic_init(void); extern unsigned int mpc8xx_get_irq(void); -static void init_smc1_uart_ioports(struct fs_uart_platform_info* fpi); -static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi); -static void init_scc3_ioports(struct fs_platform_info* ptr); +static void init_smc1_uart_ioports(struct fs_uart_platform_info *fpi); +static void init_smc2_uart_ioports(struct fs_uart_platform_info *fpi); +static void init_scc3_ioports(struct fs_platform_info *ptr); #ifdef CONFIG_PCMCIA_M8XX static void pcmcia_hw_setup(int slot, int enable) @@ -73,7 +73,7 @@ static int pcmcia_set_voltage(int slot, int vcc, int vpp) bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); - switch(vcc) { + switch (vcc) { case 0: break; case 33: @@ -86,12 +86,12 @@ static int pcmcia_set_voltage(int slot, int vcc, int vpp) return 1; } - switch(vpp) { + switch (vpp) { case 0: break; case 33: case 50: - if(vcc == vpp) + if (vcc == vpp) reg |= BCSR1_PCCVPP1; else return 1; @@ -127,7 +127,7 @@ void __init mpc885ads_board_setup(void) #endif bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); - cp = (cpm8xx_t *)immr_map(im_cpm); + cp = (cpm8xx_t *) immr_map(im_cpm); if (bcsr_io == NULL) { printk(KERN_CRIT "Could not remap BCSR\n"); @@ -140,13 +140,13 @@ void __init mpc885ads_board_setup(void) out_8(&(cp->cp_smc[0].smc_smcm), tmpval8); clrbits16(&cp->cp_smc[0].smc_smcmr, SMCMR_REN | SMCMR_TEN); /* brg1 */ #else - setbits32(bcsr_io,BCSR1_RS232EN_1); + setbits32(bcsr_io, BCSR1_RS232EN_1); out_be16(&cp->cp_smc[0].smc_smcmr, 0); out_8(&cp->cp_smc[0].smc_smce, 0); #endif #ifdef CONFIG_SERIAL_CPM_SMC2 - clrbits32(bcsr_io,BCSR1_RS232EN_2); + clrbits32(bcsr_io, BCSR1_RS232EN_2); clrbits32(&cp->cp_simode, 0xe0000000 >> 1); setbits32(&cp->cp_simode, 0x20000000 >> 1); /* brg2 */ tmpval8 = in_8(&(cp->cp_smc[1].smc_smcm)) | (SMCM_RX | SMCM_TX); @@ -155,7 +155,7 @@ void __init mpc885ads_board_setup(void) init_smc2_uart_ioports(0); #else - setbits32(bcsr_io,BCSR1_RS232EN_2); + setbits32(bcsr_io, BCSR1_RS232EN_2); out_be16(&cp->cp_smc[1].smc_smcmr, 0); out_8(&cp->cp_smc[1].smc_smce, 0); #endif @@ -164,16 +164,16 @@ void __init mpc885ads_board_setup(void) #ifdef CONFIG_FS_ENET /* use MDC for MII (common) */ - io_port = (iop8xx_t*)immr_map(im_ioport); + io_port = (iop8xx_t *) immr_map(im_ioport); setbits16(&io_port->iop_pdpar, 0x0080); clrbits16(&io_port->iop_pddir, 0x0080); bcsr_io = ioremap(BCSR5, sizeof(unsigned long)); - clrbits32(bcsr_io,BCSR5_MII1_EN); - clrbits32(bcsr_io,BCSR5_MII1_RST); + clrbits32(bcsr_io, BCSR5_MII1_EN); + clrbits32(bcsr_io, BCSR5_MII1_RST); #ifndef CONFIG_FC_ENET_HAS_SCC - clrbits32(bcsr_io,BCSR5_MII2_EN); - clrbits32(bcsr_io,BCSR5_MII2_RST); + clrbits32(bcsr_io, BCSR5_MII2_EN); + clrbits32(bcsr_io, BCSR5_MII2_RST); #endif iounmap(bcsr_io); @@ -182,17 +182,16 @@ void __init mpc885ads_board_setup(void) #endif #ifdef CONFIG_PCMCIA_M8XX - /*Set up board specific hook-ups*/ + /*Set up board specific hook-ups */ m8xx_pcmcia_ops.hw_ctrl = pcmcia_hw_setup; m8xx_pcmcia_ops.voltage_set = pcmcia_set_voltage; #endif } - -static void init_fec1_ioports(struct fs_platform_info* ptr) +static void init_fec1_ioports(struct fs_platform_info *ptr) { - cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm); - iop8xx_t *io_port = (iop8xx_t *)immr_map(im_ioport); + cpm8xx_t *cp = (cpm8xx_t *) immr_map(im_cpm); + iop8xx_t *io_port = (iop8xx_t *) immr_map(im_ioport); /* configure FEC1 pins */ setbits16(&io_port->iop_papar, 0xf830); @@ -214,11 +213,10 @@ static void init_fec1_ioports(struct fs_platform_info* ptr) immr_unmap(cp); } - -static void init_fec2_ioports(struct fs_platform_info* ptr) +static void init_fec2_ioports(struct fs_platform_info *ptr) { - cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm); - iop8xx_t *io_port = (iop8xx_t *)immr_map(im_ioport); + cpm8xx_t *cp = (cpm8xx_t *) immr_map(im_cpm); + iop8xx_t *io_port = (iop8xx_t *) immr_map(im_ioport); /* configure FEC2 pins */ setbits32(&cp->cp_pepar, 0x0003fffc); @@ -248,15 +246,15 @@ void init_fec_ioports(struct fs_platform_info *fpi) } } -static void init_scc3_ioports(struct fs_platform_info* fpi) +static void init_scc3_ioports(struct fs_platform_info *fpi) { unsigned *bcsr_io; iop8xx_t *io_port; cpm8xx_t *cp; bcsr_io = ioremap(BCSR_ADDR, BCSR_SIZE); - io_port = (iop8xx_t *)immr_map(im_ioport); - cp = (cpm8xx_t *)immr_map(im_cpm); + io_port = (iop8xx_t *) immr_map(im_ioport); + cp = (cpm8xx_t *) immr_map(im_cpm); if (bcsr_io == NULL) { printk(KERN_CRIT "Could not remap BCSR\n"); @@ -265,9 +263,9 @@ static void init_scc3_ioports(struct fs_platform_info* fpi) /* Enable the PHY. */ - clrbits32(bcsr_io+4, BCSR4_ETH10_RST); + clrbits32(bcsr_io + 4, BCSR4_ETH10_RST); udelay(1000); - setbits32(bcsr_io+4, BCSR4_ETH10_RST); + setbits32(bcsr_io + 4, BCSR4_ETH10_RST); /* Configure port A pins for Txd and Rxd. */ setbits16(&io_port->iop_papar, PA_ENET_RXD | PA_ENET_TXD); @@ -283,8 +281,7 @@ static void init_scc3_ioports(struct fs_platform_info* fpi) */ setbits32(&cp->cp_pepar, PE_ENET_TCLK | PE_ENET_RCLK); clrbits32(&cp->cp_pepar, PE_ENET_TENA); - clrbits32(&cp->cp_pedir, - PE_ENET_TCLK | PE_ENET_RCLK | PE_ENET_TENA); + clrbits32(&cp->cp_pedir, PE_ENET_TCLK | PE_ENET_RCLK | PE_ENET_TENA); clrbits32(&cp->cp_peso, PE_ENET_TCLK | PE_ENET_RCLK); setbits32(&cp->cp_peso, PE_ENET_TENA); @@ -308,7 +305,7 @@ static void init_scc3_ioports(struct fs_platform_info* fpi) clrbits32(&cp->cp_pedir, PE_ENET_TENA); setbits32(&cp->cp_peso, PE_ENET_TENA); - setbits32(bcsr_io+4, BCSR1_ETHEN); + setbits32(bcsr_io + 4, BCSR1_ETHEN); iounmap(bcsr_io); immr_unmap(io_port); immr_unmap(cp); @@ -328,50 +325,48 @@ void init_scc_ioports(struct fs_platform_info *fpi) } } - - -static void init_smc1_uart_ioports(struct fs_uart_platform_info* ptr) +static void init_smc1_uart_ioports(struct fs_uart_platform_info *ptr) { - unsigned *bcsr_io; + unsigned *bcsr_io; cpm8xx_t *cp; - cp = (cpm8xx_t *)immr_map(im_cpm); + cp = (cpm8xx_t *) immr_map(im_cpm); setbits32(&cp->cp_pepar, 0x000000c0); clrbits32(&cp->cp_pedir, 0x000000c0); clrbits32(&cp->cp_peso, 0x00000040); setbits32(&cp->cp_peso, 0x00000080); immr_unmap(cp); - bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); - if (bcsr_io == NULL) { - printk(KERN_CRIT "Could not remap BCSR1\n"); - return; - } - clrbits32(bcsr_io,BCSR1_RS232EN_1); - iounmap(bcsr_io); + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } + clrbits32(bcsr_io, BCSR1_RS232EN_1); + iounmap(bcsr_io); } -static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi) +static void init_smc2_uart_ioports(struct fs_uart_platform_info *fpi) { - unsigned *bcsr_io; + unsigned *bcsr_io; cpm8xx_t *cp; - cp = (cpm8xx_t *)immr_map(im_cpm); + cp = (cpm8xx_t *) immr_map(im_cpm); setbits32(&cp->cp_pepar, 0x00000c00); clrbits32(&cp->cp_pedir, 0x00000c00); clrbits32(&cp->cp_peso, 0x00000400); setbits32(&cp->cp_peso, 0x00000800); immr_unmap(cp); - bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); - if (bcsr_io == NULL) { - printk(KERN_CRIT "Could not remap BCSR1\n"); - return; - } - clrbits32(bcsr_io,BCSR1_RS232EN_2); - iounmap(bcsr_io); + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } + clrbits32(bcsr_io, BCSR1_RS232EN_2); + iounmap(bcsr_io); } void init_smc_ioports(struct fs_uart_platform_info *data) @@ -444,15 +439,11 @@ static int __init mpc885ads_probe(void) return 1; } -define_machine(mpc885_ads) { - .name = "MPC885 ADS", - .probe = mpc885ads_probe, - .setup_arch = mpc885ads_setup_arch, - .init_IRQ = m8xx_pic_init, - .show_cpuinfo = mpc8xx_show_cpuinfo, - .get_irq = mpc8xx_get_irq, - .restart = mpc8xx_restart, - .calibrate_decr = mpc8xx_calibrate_decr, - .set_rtc_time = mpc8xx_set_rtc_time, - .get_rtc_time = mpc8xx_get_rtc_time, -}; +define_machine(mpc885_ads) +{ +.name = "MPC885 ADS",.probe = mpc885ads_probe,.setup_arch = + mpc885ads_setup_arch,.init_IRQ = + m8xx_pic_init,.show_cpuinfo = mpc8xx_show_cpuinfo,.get_irq = + mpc8xx_get_irq,.restart = mpc8xx_restart,.calibrate_decr = + mpc8xx_calibrate_decr,.set_rtc_time = + mpc8xx_set_rtc_time,.get_rtc_time = mpc8xx_get_rtc_time,}; diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index e4d0c9f42abd..96a8f609690c 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -31,6 +31,7 @@ #include <linux/mm.h> #include <linux/io.h> #include <linux/mutex.h> +#include <linux/linux_logo.h> #include <asm/spu.h> #include <asm/spu_priv1.h> #include <asm/xmon.h> @@ -656,12 +657,24 @@ static int __init init_spu_base(void) ret = spu_enumerate_spus(create_spu); - if (ret) { + if (ret < 0) { printk(KERN_WARNING "%s: Error initializing spus\n", __FUNCTION__); goto out_unregister_sysdev_class; } + if (ret > 0) { + /* + * We cannot put the forward declaration in + * <linux/linux_logo.h> because of conflicting session type + * conflicts for const and __initdata with different compiler + * versions + */ + extern const struct linux_logo logo_spe_clut224; + + fb_append_extra_logo(&logo_spe_clut224, ret); + } + xmon_register_spus(&spu_full_list); spu_add_sysdev_attr(&attr_stat); diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c index 1d4562ae463d..75ed50fcc3db 100644 --- a/arch/powerpc/platforms/cell/spu_manage.c +++ b/arch/powerpc/platforms/cell/spu_manage.c @@ -279,6 +279,7 @@ static int __init of_enumerate_spus(int (*fn)(void *data)) { int ret; struct device_node *node; + unsigned int n = 0; ret = -ENODEV; for (node = of_find_node_by_type(NULL, "spe"); @@ -289,8 +290,9 @@ static int __init of_enumerate_spus(int (*fn)(void *data)) __FUNCTION__, node->name); break; } + n++; } - return ret; + return ret ? ret : n; } static int __init of_create_spu(struct spu *spu, void *data) diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c index e064d0c0d80e..07f88de0544d 100644 --- a/arch/powerpc/platforms/cell/spufs/fault.c +++ b/arch/powerpc/platforms/cell/spufs/fault.c @@ -74,23 +74,21 @@ good_area: goto bad_area; } ret = 0; - *flt = handle_mm_fault(mm, vma, ea, is_write); - switch (*flt) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - ret = -EFAULT; - goto bad_area; - case VM_FAULT_OOM: - ret = -ENOMEM; - goto bad_area; - default: + fault = handle_mm_fault(mm, vma, ea, is_write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) { + ret = -ENOMEM; + goto bad_area; + } else if (fault & VM_FAULT_SIGBUS) { + ret = -EFAULT; + goto bad_area; + } BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); return ret; diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c index c7f734c89462..502d80ed982b 100644 --- a/arch/powerpc/platforms/ps3/spu.c +++ b/arch/powerpc/platforms/ps3/spu.c @@ -405,11 +405,13 @@ static int __init ps3_enumerate_spus(int (*fn)(void *data)) } } - if (result) + if (result) { printk(KERN_WARNING "%s:%d: Error initializing spus\n", __func__, __LINE__); + return result; + } - return result; + return num_resource_id; } const struct spu_management_ops spu_management_ps3_ops = { diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index c0ddc80d8160..3289fab01e92 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -197,6 +197,7 @@ static int __init gfar_of_init(void) struct gianfar_platform_data gfar_data; const unsigned int *id; const char *model; + const char *ctype; const void *mac_addr; const phandle *ph; int n_res = 2; @@ -254,6 +255,14 @@ static int __init gfar_of_init(void) FSL_GIANFAR_DEV_HAS_VLAN | FSL_GIANFAR_DEV_HAS_EXTENDED_HASH; + ctype = of_get_property(np, "phy-connection-type", NULL); + + /* We only care about rgmii-id. The rest are autodetected */ + if (ctype && !strcmp(ctype, "rgmii-id")) + gfar_data.interface = PHY_INTERFACE_MODE_RGMII_ID; + else + gfar_data.interface = PHY_INTERFACE_MODE_MII; + ph = of_get_property(np, "phy-handle", NULL); phy = of_find_node_by_phandle(*ph); diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c index 0eaef7c8378b..3f3b292eb773 100644 --- a/arch/ppc/kernel/traps.c +++ b/arch/ppc/kernel/traps.c @@ -92,6 +92,7 @@ int die(const char * str, struct pt_regs * fp, long err) if (nl) printk("\n"); show_regs(fp); + add_taint(TAINT_DIE); spin_unlock_irq(&die_lock); /* do_exit() should take care of panic'ing from an interrupt * context so we don't handle it here diff --git a/arch/ppc/kernel/vmlinux.lds.S b/arch/ppc/kernel/vmlinux.lds.S index 19db8746ff14..c0aac3ff9e91 100644 --- a/arch/ppc/kernel/vmlinux.lds.S +++ b/arch/ppc/kernel/vmlinux.lds.S @@ -130,10 +130,7 @@ SECTIONS __ftr_fixup : { *(__ftr_fixup) } __stop___ftr_fixup = .; - . = ALIGN(4096); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(4096) #ifdef CONFIG_BLK_DEV_INITRD . = ALIGN(4096); diff --git a/arch/ppc/mm/fault.c b/arch/ppc/mm/fault.c index 465f451f3bc3..b98244e277fb 100644 --- a/arch/ppc/mm/fault.c +++ b/arch/ppc/mm/fault.c @@ -96,6 +96,7 @@ int do_page_fault(struct pt_regs *regs, unsigned long address, struct mm_struct *mm = current->mm; siginfo_t info; int code = SEGV_MAPERR; + int fault; #if defined(CONFIG_4xx) || defined (CONFIG_BOOKE) int is_write = error_code & ESR_DST; #else @@ -249,20 +250,18 @@ good_area: * the fault. */ survive: - switch (handle_mm_fault(mm, vma, address, is_write)) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, is_write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); /* diff --git a/arch/ppc/platforms/4xx/bamboo.c b/arch/ppc/platforms/4xx/bamboo.c index 349660b84a02..017623c9bc4b 100644 --- a/arch/ppc/platforms/4xx/bamboo.c +++ b/arch/ppc/platforms/4xx/bamboo.c @@ -29,6 +29,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/ethtool.h> #include <asm/system.h> diff --git a/arch/ppc/platforms/4xx/bubinga.c b/arch/ppc/platforms/4xx/bubinga.c index 1a7f075b754f..cd696be55aca 100644 --- a/arch/ppc/platforms/4xx/bubinga.c +++ b/arch/ppc/platforms/4xx/bubinga.c @@ -21,6 +21,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/system.h> #include <asm/pci-bridge.h> diff --git a/arch/ppc/platforms/4xx/cpci405.c b/arch/ppc/platforms/4xx/cpci405.c index 8474b05b795a..2e7e25dd84cb 100644 --- a/arch/ppc/platforms/4xx/cpci405.c +++ b/arch/ppc/platforms/4xx/cpci405.c @@ -23,6 +23,7 @@ #include <asm/todc.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/ocp.h> #include <asm/ibm_ocp_pci.h> #include <platforms/4xx/ibm405gp.h> diff --git a/arch/ppc/platforms/4xx/ebony.c b/arch/ppc/platforms/4xx/ebony.c index f0f9cc8480ca..05d7184d7e14 100644 --- a/arch/ppc/platforms/4xx/ebony.c +++ b/arch/ppc/platforms/4xx/ebony.c @@ -32,6 +32,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/system.h> #include <asm/pgtable.h> diff --git a/arch/ppc/platforms/4xx/luan.c b/arch/ppc/platforms/4xx/luan.c index 61706ef37112..4b169610f154 100644 --- a/arch/ppc/platforms/4xx/luan.c +++ b/arch/ppc/platforms/4xx/luan.c @@ -30,6 +30,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/system.h> #include <asm/pgtable.h> diff --git a/arch/ppc/platforms/4xx/ocotea.c b/arch/ppc/platforms/4xx/ocotea.c index 5e994e146ba8..fd0f971881d6 100644 --- a/arch/ppc/platforms/4xx/ocotea.c +++ b/arch/ppc/platforms/4xx/ocotea.c @@ -30,6 +30,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/system.h> #include <asm/pgtable.h> diff --git a/arch/ppc/platforms/4xx/taishan.c b/arch/ppc/platforms/4xx/taishan.c index 5d9af8ddb155..888c492b4a45 100644 --- a/arch/ppc/platforms/4xx/taishan.c +++ b/arch/ppc/platforms/4xx/taishan.c @@ -30,6 +30,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/platform_device.h> #include <linux/mtd/partitions.h> #include <linux/mtd/nand.h> diff --git a/arch/ppc/platforms/4xx/yucca.c b/arch/ppc/platforms/4xx/yucca.c index 346787df0ddb..a83b0baea011 100644 --- a/arch/ppc/platforms/4xx/yucca.c +++ b/arch/ppc/platforms/4xx/yucca.c @@ -31,6 +31,7 @@ #include <linux/tty.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/system.h> #include <asm/pgtable.h> diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c index 1d10ab98f66d..3d7addbdecfd 100644 --- a/arch/ppc/platforms/85xx/sbc8560.c +++ b/arch/ppc/platforms/85xx/sbc8560.c @@ -26,6 +26,7 @@ #include <linux/serial.h> #include <linux/tty.h> /* for linux/serial_core.h */ #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/initrd.h> #include <linux/module.h> #include <linux/fsl_devices.h> diff --git a/arch/ppc/platforms/chestnut.c b/arch/ppc/platforms/chestnut.c index a764ae71cbcb..248684f50dd9 100644 --- a/arch/ppc/platforms/chestnut.c +++ b/arch/ppc/platforms/chestnut.c @@ -25,6 +25,7 @@ #include <linux/ide.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/mtd/physmap.h> #include <asm/system.h> #include <asm/pgtable.h> diff --git a/arch/ppc/platforms/ev64260.c b/arch/ppc/platforms/ev64260.c index 4957a7bcde22..976270d537c1 100644 --- a/arch/ppc/platforms/ev64260.c +++ b/arch/ppc/platforms/ev64260.c @@ -35,6 +35,7 @@ #include <linux/serial.h> #include <linux/tty.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #else #include <linux/mv643xx.h> #endif diff --git a/arch/ppc/platforms/radstone_ppc7d.c b/arch/ppc/platforms/radstone_ppc7d.c index b55860734a72..44d4398a36ff 100644 --- a/arch/ppc/platforms/radstone_ppc7d.c +++ b/arch/ppc/platforms/radstone_ppc7d.c @@ -35,6 +35,7 @@ #include <linux/serial.h> #include <linux/tty.h> /* for linux/serial_core.h */ #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/mv643xx.h> #include <linux/netdevice.h> #include <linux/platform_device.h> diff --git a/arch/ppc/platforms/spruce.c b/arch/ppc/platforms/spruce.c index 3c7842784876..f4de50ba292e 100644 --- a/arch/ppc/platforms/spruce.c +++ b/arch/ppc/platforms/spruce.c @@ -27,6 +27,7 @@ #include <linux/serial.h> #include <linux/tty.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <asm/system.h> #include <asm/pgtable.h> diff --git a/arch/ppc/syslib/virtex_devices.h b/arch/ppc/syslib/virtex_devices.h index 3d4be1412f60..9f38d92ae536 100644 --- a/arch/ppc/syslib/virtex_devices.h +++ b/arch/ppc/syslib/virtex_devices.h @@ -31,4 +31,11 @@ void __init virtex_early_serial_map(void); */ int virtex_device_fixup(struct platform_device *dev); +/* SPI Controller IP */ +struct xspi_platform_data { + s16 bus_num; + u16 num_chipselect; + u32 speed_hz; +}; + #endif /* __ASM_VIRTEX_DEVICES_H__ */ diff --git a/arch/s390/defconfig b/arch/s390/defconfig index 485b60c1983c..2aae23dba4bb 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.21 -# Thu May 10 15:18:19 2007 +# Linux kernel version: 2.6.22 +# Tue Jul 17 12:50:23 2007 # CONFIG_MMU=y CONFIG_ZONE_DMA=y @@ -32,12 +32,11 @@ CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y -# CONFIG_IPC_NS is not set CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_UTS_NS is not set +# CONFIG_USER_NS is not set CONFIG_AUDIT=y # CONFIG_AUDITSYSCALL is not set CONFIG_IKCONFIG=y @@ -61,20 +60,19 @@ CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y +CONFIG_ANON_INODES=y CONFIG_EPOLL=y +CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y +CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_VM_EVENT_COUNTERS=y -CONFIG_SLUB_DEBUG=y CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 - -# -# Loadable module support -# CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_MODULE_FORCE_UNLOAD is not set @@ -82,12 +80,9 @@ CONFIG_MODVERSIONS=y # CONFIG_MODULE_SRCVERSION_ALL is not set CONFIG_KMOD=y CONFIG_STOP_MACHINE=y - -# -# Block layer -# CONFIG_BLOCK=y # CONFIG_BLK_DEV_IO_TRACE is not set +CONFIG_BLK_DEV_BSG=y # # IO Schedulers @@ -151,6 +146,7 @@ CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 +CONFIG_VIRT_TO_BUS=y CONFIG_HOLES_IN_ZONE=y # @@ -248,25 +244,13 @@ CONFIG_IPV6_SIT=y # CONFIG_IPV6_MULTIPLE_TABLES is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# # CONFIG_IP_DCCP is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# CONFIG_IP_SCTP=m # CONFIG_SCTP_DBG_MSG is not set # CONFIG_SCTP_DBG_OBJCNT is not set # CONFIG_SCTP_HMAC_NONE is not set # CONFIG_SCTP_HMAC_SHA1 is not set CONFIG_SCTP_HMAC_MD5=y - -# -# TIPC Configuration (EXPERIMENTAL) -# # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set @@ -293,6 +277,7 @@ CONFIG_NET_SCH_CBQ=m # CONFIG_NET_SCH_HTB is not set # CONFIG_NET_SCH_HFSC is not set CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_RR=m CONFIG_NET_SCH_RED=m CONFIG_NET_SCH_SFQ=m CONFIG_NET_SCH_TEQL=m @@ -317,10 +302,14 @@ CONFIG_CLS_U32_MARK=y CONFIG_NET_CLS_RSVP=m CONFIG_NET_CLS_RSVP6=m # CONFIG_NET_EMATCH is not set -# CONFIG_NET_CLS_ACT is not set +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=y +# CONFIG_NET_ACT_GACT is not set +# CONFIG_NET_ACT_MIRRED is not set +# CONFIG_NET_ACT_PEDIT is not set +# CONFIG_NET_ACT_SIMP is not set CONFIG_NET_CLS_POLICE=y # CONFIG_NET_CLS_IND is not set -CONFIG_NET_ESTIMATOR=y # # Network testing @@ -329,6 +318,7 @@ CONFIG_NET_ESTIMATOR=y # CONFIG_NET_TCPPROBE is not set # CONFIG_AF_RXRPC is not set # CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set # CONFIG_PCMCIA is not set CONFIG_CCW=y @@ -345,15 +335,8 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_DEBUG_DRIVER is not set # CONFIG_DEBUG_DEVRES is not set CONFIG_SYS_HYPERVISOR=y - -# -# Connector - unified userspace <-> kernelspace linker -# # CONFIG_CONNECTOR is not set - -# -# Block devices -# +CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_COW_COMMON is not set CONFIG_BLK_DEV_LOOP=m # CONFIG_BLK_DEV_CRYPTOLOOP is not set @@ -376,17 +359,15 @@ CONFIG_DASD_ECKD=y CONFIG_DASD_FBA=y CONFIG_DASD_DIAG=y CONFIG_DASD_EER=y - -# -# Misc devices -# -# CONFIG_BLINK is not set +CONFIG_MISC_DEVICES=y +# CONFIG_EEPROM_93CX6 is not set # # SCSI device support # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +# CONFIG_SCSI_DMA is not set # CONFIG_SCSI_TGT is not set CONFIG_SCSI_NETLINK=y CONFIG_SCSI_PROC_FS=y @@ -447,40 +428,21 @@ CONFIG_DM_MIRROR=y CONFIG_DM_ZERO=y CONFIG_DM_MULTIPATH=y # CONFIG_DM_MULTIPATH_EMC is not set +# CONFIG_DM_MULTIPATH_RDAC is not set # CONFIG_DM_DELAY is not set - -# -# Network device support -# CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set +# CONFIG_IFB is not set CONFIG_DUMMY=m CONFIG_BONDING=m +# CONFIG_MACVLAN is not set CONFIG_EQUALIZER=m CONFIG_TUN=m - -# -# Ethernet (10 or 100Mbit) -# CONFIG_NET_ETHERNET=y # CONFIG_MII is not set - -# -# Ethernet (1000 Mbit) -# - -# -# Ethernet (10000 Mbit) -# -CONFIG_MLX4_DEBUG=y - -# -# Token Ring devices -# +CONFIG_NETDEV_1000=y +CONFIG_NETDEV_10000=y # CONFIG_TR is not set - -# -# Wan interfaces -# # CONFIG_WAN is not set # @@ -511,10 +473,6 @@ CONFIG_CCWGROUP=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 - -# -# Watchdog Cards -# # CONFIG_WATCHDOG is not set CONFIG_HW_RANDOM=m # CONFIG_R3964 is not set @@ -554,6 +512,8 @@ CONFIG_S390_TAPE_34XX=m # CONFIG_VMCP is not set # CONFIG_MONREADER is not set CONFIG_MONWRITER=m +CONFIG_S390_VMUR=m +# CONFIG_POWER_SUPPLY is not set # # File systems @@ -655,7 +615,6 @@ CONFIG_SUNRPC=y # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set # # Partition Types @@ -712,6 +671,7 @@ CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_FS=y CONFIG_HEADERS_CHECK=y CONFIG_DEBUG_KERNEL=y +# CONFIG_SCHED_DEBUG is not set # CONFIG_SCHEDSTATS is not set # CONFIG_TIMER_STATS is not set # CONFIG_DEBUG_SLAB is not set @@ -740,10 +700,6 @@ CONFIG_FORCED_INLINING=y # # CONFIG_KEYS is not set # CONFIG_SECURITY is not set - -# -# Cryptographic options -# CONFIG_CRYPTO=y CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_BLKCIPHER=y @@ -782,10 +738,7 @@ CONFIG_CRYPTO_FCRYPT=m # CONFIG_CRYPTO_CRC32C is not set CONFIG_CRYPTO_CAMELLIA=m # CONFIG_CRYPTO_TEST is not set - -# -# Hardware crypto devices -# +CONFIG_CRYPTO_HW=y # CONFIG_CRYPTO_SHA1_S390 is not set # CONFIG_CRYPTO_SHA256_S390 is not set # CONFIG_CRYPTO_DES_S390 is not set @@ -800,6 +753,7 @@ CONFIG_ZCRYPT=m CONFIG_BITREVERSE=m # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set CONFIG_CRC32=m # CONFIG_LIBCRC32C is not set CONFIG_PLIST=y diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c index a057ebf108a7..d3057318f2bf 100644 --- a/arch/s390/kernel/dis.c +++ b/arch/s390/kernel/dis.c @@ -240,8 +240,8 @@ static const unsigned char formats[][7] = { [INSTR_RXY_FRRD] = { 0xff, F_8,D20_20,X_12,B_16,0,0 },/* e.g. ley */ [INSTR_RX_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 }, /* e.g. ae */ [INSTR_RX_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 }, /* e.g. l */ - [INSTR_RX_URRD] = { 0x00, U4_8,D_20,X_12,B_16,0,0 }, /* e.g. bc */ - [INSTR_SI_URD] = { 0x00, D_20,B_16,U8_8,0,0,0 }, /* e.g. cli */ + [INSTR_RX_URRD] = { 0xff, U4_8,D_20,X_12,B_16,0,0 }, /* e.g. bc */ + [INSTR_SI_URD] = { 0xff, D_20,B_16,U8_8,0,0,0 }, /* e.g. cli */ [INSTR_SIY_URD] = { 0xff, D20_20,B_16,U8_8,0,0,0 }, /* e.g. tmy */ [INSTR_SSE_RDRD] = { 0xff, D_20,B_16,D_36,B_32,0,0 }, /* e.g. mvsdk */ [INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 }, @@ -1190,7 +1190,8 @@ static int print_insn(char *buffer, unsigned char *code, unsigned long addr) else if (operand->flags & OPERAND_CR) ptr += sprintf(ptr, "%%c%i", value); else if (operand->flags & OPERAND_PCREL) - ptr += sprintf(ptr, "%lx", value + addr); + ptr += sprintf(ptr, "%lx", (signed int) value + + addr); else if (operand->flags & OPERAND_SIGNED) ptr += sprintf(ptr, "%i", value); else diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 2a8f0872ea8b..f4503ca27630 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -294,7 +294,6 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data) static int do_ptrace_normal(struct task_struct *child, long request, long addr, long data) { - unsigned long tmp; ptrace_area parea; int copied, ret; @@ -304,10 +303,7 @@ do_ptrace_normal(struct task_struct *child, long request, long addr, long data) /* Remove high order bit from address (only for 31 bit). */ addr &= PSW_ADDR_INSN; /* read word at location addr. */ - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - if (copied != sizeof(tmp)) - return -EIO; - return put_user(tmp, (unsigned long __force __user *) data); + return generic_ptrace_peekdata(child, addr, data); case PTRACE_PEEKUSR: /* read the word at location addr in the USER area. */ @@ -318,10 +314,7 @@ do_ptrace_normal(struct task_struct *child, long request, long addr, long data) /* Remove high order bit from address (only for 31 bit). */ addr &= PSW_ADDR_INSN; /* write the word at location addr. */ - copied = access_process_vm(child, addr, &data, sizeof(data),1); - if (copied != sizeof(data)) - return -EIO; - return 0; + return generic_ptrace_pokedata(child, addr, data); case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c index 515ff9011dd7..da6924729964 100644 --- a/arch/s390/kernel/stacktrace.c +++ b/arch/s390/kernel/stacktrace.c @@ -12,7 +12,6 @@ #include <linux/kallsyms.h> static unsigned long save_context_stack(struct stack_trace *trace, - unsigned int *skip, unsigned long sp, unsigned long low, unsigned long high) @@ -28,10 +27,10 @@ static unsigned long save_context_stack(struct stack_trace *trace, sf = (struct stack_frame *)sp; while(1) { addr = sf->gprs[8] & PSW_ADDR_INSN; - if (!(*skip)) + if (!trace->skip) trace->entries[trace->nr_entries++] = addr; else - (*skip)--; + trace->skip--; if (trace->nr_entries >= trace->max_entries) return sp; low = sp; @@ -48,10 +47,10 @@ static unsigned long save_context_stack(struct stack_trace *trace, return sp; regs = (struct pt_regs *)sp; addr = regs->psw.addr & PSW_ADDR_INSN; - if (!(*skip)) + if (!trace->skip) trace->entries[trace->nr_entries++] = addr; else - (*skip)--; + trace->skip--; if (trace->nr_entries >= trace->max_entries) return sp; low = sp; @@ -65,20 +64,17 @@ void save_stack_trace(struct stack_trace *trace) unsigned long orig_sp, new_sp; orig_sp = sp & PSW_ADDR_INSN; - - new_sp = save_context_stack(trace, &trace->skip, orig_sp, - S390_lowcore.panic_stack - PAGE_SIZE, - S390_lowcore.panic_stack); + new_sp = save_context_stack(trace, orig_sp, + S390_lowcore.panic_stack - PAGE_SIZE, + S390_lowcore.panic_stack); if (new_sp != orig_sp) return; - new_sp = save_context_stack(trace, &trace->skip, new_sp, - S390_lowcore.async_stack - ASYNC_SIZE, - S390_lowcore.async_stack); + new_sp = save_context_stack(trace, new_sp, + S390_lowcore.async_stack - ASYNC_SIZE, + S390_lowcore.async_stack); if (new_sp != orig_sp) return; - - save_context_stack(trace, &trace->skip, new_sp, + save_context_stack(trace, new_sp, S390_lowcore.thread_info, S390_lowcore.thread_info + THREAD_SIZE); - return; } diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 81e03b9c3841..8ec9def83ccb 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -262,6 +262,7 @@ void die(const char * str, struct pt_regs * regs, long err) print_modules(); show_regs(regs); bust_spinlocks(0); + add_taint(TAINT_DIE); spin_unlock_irq(&die_lock); if (in_interrupt()) panic("Fatal exception in interrupt"); diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 7158a804a5e4..6ab7d4ee13a4 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -45,6 +45,8 @@ SECTIONS __ex_table : { *(__ex_table) } __stop___ex_table = .; + NOTES + BUG_TABLE .data : { /* Data */ @@ -107,10 +109,7 @@ SECTIONS . = ALIGN(2); __initramfs_end = .; #endif - . = ALIGN(4096); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(4096) . = ALIGN(4096); __init_end = .; /* freed after init ends here */ diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c index 63181671e3e3..60604b2819b2 100644 --- a/arch/s390/lib/uaccess_pt.c +++ b/arch/s390/lib/uaccess_pt.c @@ -20,6 +20,7 @@ static int __handle_fault(struct mm_struct *mm, unsigned long address, { struct vm_area_struct *vma; int ret = -EFAULT; + int fault; if (in_atomic()) return ret; @@ -44,20 +45,18 @@ static int __handle_fault(struct mm_struct *mm, unsigned long address, } survive: - switch (handle_mm_fault(mm, vma, address, write_access)) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto out_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, write_access); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto out_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; ret = 0; out: up_read(&mm->mmap_sem); diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index d855cdbf8fb8..54055194e9af 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -307,6 +307,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int write) unsigned long address; int space; int si_code; + int fault; if (notify_page_fault(regs, error_code)) return; @@ -377,23 +378,22 @@ survive: * make sure we exit gracefully rather than endlessly redo * the fault. */ - switch (handle_mm_fault(mm, vma, address, write)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - do_sigbus(regs, error_code, address); - return; - case VM_FAULT_OOM: - if (do_out_of_memory(regs, error_code, address)) - goto survive; - return; - default: + fault = handle_mm_fault(mm, vma, address, write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) { + if (do_out_of_memory(regs, error_code, address)) + goto survive; + return; + } else if (fault & VM_FAULT_SIGBUS) { + do_sigbus(regs, error_code, address); + return; + } BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; up_read(&mm->mmap_sem); /* diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c index f2eaa485d04d..891d1d46c902 100644 --- a/arch/sh/kernel/ptrace.c +++ b/arch/sh/kernel/ptrace.c @@ -91,17 +91,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp,(unsigned long __user *) data); - break; - } + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -135,10 +126,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index 05a40f3c30bf..502d43e4785c 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -103,6 +103,7 @@ void die(const char * str, struct pt_regs * regs, long err) (unsigned long)task_stack_page(current)); bust_spinlocks(0); + add_taint(TAINT_DIE); spin_unlock_irq(&die_lock); if (kexec_should_crash(current)) diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 0696402f446a..5ba216180b30 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -60,10 +60,7 @@ SECTIONS . = ALIGN(PAGE_SIZE); __nosave_end = .; - . = ALIGN(PAGE_SIZE); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(PAGE_SIZE) .data.cacheline_aligned : { *(.data.cacheline_aligned) } _edata = .; /* End of data section */ diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 0b3eaf6fbb28..964c6767dc73 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -33,6 +33,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, struct mm_struct *mm; struct vm_area_struct * vma; int si_code; + int fault; siginfo_t info; trace_hardirqs_on(); @@ -124,20 +125,18 @@ good_area: * the fault. */ survive: - switch (handle_mm_fault(mm, vma, address, writeaccess)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: + fault = handle_mm_fault(mm, vma, address, writeaccess); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) goto out_of_memory; - default: - BUG(); + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/sh64/kernel/ptrace.c b/arch/sh64/kernel/ptrace.c index 4e95e18b46d9..df06c6477468 100644 --- a/arch/sh64/kernel/ptrace.c +++ b/arch/sh64/kernel/ptrace.c @@ -129,17 +129,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp,(unsigned long *) data); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -166,10 +158,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: diff --git a/arch/sh64/kernel/vmlinux.lds.S b/arch/sh64/kernel/vmlinux.lds.S index 02aea86c5907..8ac9c7c5f848 100644 --- a/arch/sh64/kernel/vmlinux.lds.S +++ b/arch/sh64/kernel/vmlinux.lds.S @@ -87,7 +87,10 @@ SECTIONS . = ALIGN(PAGE_SIZE); __per_cpu_start = .; - .data.percpu : C_PHYS(.data.percpu) { *(.data.percpu) } + .data.percpu : C_PHYS(.data.percpu) { + *(.data.percpu) + *(.data.percpu.shared_aligned) + } __per_cpu_end = . ; .data.cacheline_aligned : C_PHYS(.data.cacheline_aligned) { *(.data.cacheline_aligned) } diff --git a/arch/sh64/lib/c-checksum.c b/arch/sh64/lib/c-checksum.c index 4b2676380deb..bd5501760240 100644 --- a/arch/sh64/lib/c-checksum.c +++ b/arch/sh64/lib/c-checksum.c @@ -213,3 +213,4 @@ __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, return (__wsum)result; } +EXPORT_SYMBOL(csum_tcpudp_nofold); diff --git a/arch/sh64/mm/fault.c b/arch/sh64/mm/fault.c index 3cd93ba5d826..0d069d82141f 100644 --- a/arch/sh64/mm/fault.c +++ b/arch/sh64/mm/fault.c @@ -127,6 +127,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess, struct vm_area_struct * vma; const struct exception_table_entry *fixup; pte_t *pte; + int fault; #if defined(CONFIG_SH64_PROC_TLB) ++calls_to_do_slow_page_fault; @@ -221,18 +222,19 @@ good_area: * the fault. */ survive: - switch (handle_mm_fault(mm, vma, address, writeaccess)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - default: - goto out_of_memory; + fault = handle_mm_fault(mm, vma, address, writeaccess); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); } + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; + /* If we get here, the page fault has been handled. Do the TLB refill now from the newly-setup PTE, to avoid having to fault again right away on the same instruction. */ diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 8567cc901942..603d83ad65c8 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -21,6 +21,9 @@ config GENERIC_ISA_DMA bool default y +config ARCH_NO_VIRT_TO_BUS + def_bool y + source "init/Kconfig" menu "General machine setup" @@ -217,6 +220,9 @@ source "drivers/pci/Kconfig" endif +config NO_DMA + def_bool !PCI + config SUN_OPENPROMFS tristate "Openprom tree appears in /proc/openprom" help diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c index dc9ffea2a4f7..3bc3bff51e08 100644 --- a/arch/sparc/kernel/traps.c +++ b/arch/sparc/kernel/traps.c @@ -101,6 +101,7 @@ void die_if_kernel(char *str, struct pt_regs *regs) printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter); show_regs(regs); + add_taint(TAINT_DIE); __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index f75a1b822789..47583887abc6 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -65,10 +65,7 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(4096); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(4096) . = ALIGN(4096); __init_end = .; . = ALIGN(32); diff --git a/arch/sparc/mm/fault.c b/arch/sparc/mm/fault.c index c3483365db4b..50747fe44356 100644 --- a/arch/sparc/mm/fault.c +++ b/arch/sparc/mm/fault.c @@ -226,6 +226,7 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, unsigned long g2; siginfo_t info; int from_user = !(regs->psr & PSR_PS); + int fault; if(text_fault) address = regs->pc; @@ -289,19 +290,18 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ - switch (handle_mm_fault(mm, vma, address, write)) { - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - case VM_FAULT_MAJOR: + fault = handle_mm_fault(mm, vma, address, write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); + } + if (fault & VM_FAULT_MAJOR) current->maj_flt++; - break; - case VM_FAULT_MINOR: - default: + else current->min_flt++; - break; - } up_read(&mm->mmap_sem); return; diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index b84b6af1241e..df6ee71894d1 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -62,6 +62,9 @@ config AUDIT_ARCH bool default y +config ARCH_NO_VIRT_TO_BUS + def_bool y + choice prompt "Kernel page size" default SPARC64_PAGE_SIZE_8KB diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig index 65840a62bb9c..45ebf91a280c 100644 --- a/arch/sparc64/defconfig +++ b/arch/sparc64/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22-rc1 -# Mon May 14 04:17:48 2007 +# Linux kernel version: 2.6.22 +# Tue Jul 17 01:19:52 2007 # CONFIG_SPARC=y CONFIG_SPARC64=y @@ -42,12 +42,11 @@ CONFIG_LOCALVERSION="" # CONFIG_LOCALVERSION_AUTO is not set CONFIG_SWAP=y CONFIG_SYSVIPC=y -# CONFIG_IPC_NS is not set CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -# CONFIG_UTS_NS is not set +# CONFIG_USER_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=18 @@ -82,22 +81,15 @@ CONFIG_SLUB=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 - -# -# Loadable module support -# CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_KMOD=y - -# -# Block layer -# CONFIG_BLOCK=y CONFIG_BLK_DEV_IO_TRACE=y +CONFIG_BLK_DEV_BSG=y # # IO Schedulers @@ -156,12 +148,15 @@ CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=0 CONFIG_NR_QUICK=1 +CONFIG_VIRT_TO_BUS=y CONFIG_SBUS=y CONFIG_SBUSCHAR=y CONFIG_SUN_AUXIO=y CONFIG_SUN_IO=y +# CONFIG_SUN_LDOMS is not set CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +CONFIG_PCI_SYSCALL=y CONFIG_ARCH_SUPPORTS_MSI=y CONFIG_PCI_MSI=y # CONFIG_PCI_DEBUG is not set @@ -246,10 +241,6 @@ CONFIG_IPV6_TUNNEL=m # CONFIG_IPV6_MULTIPLE_TABLES is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# CONFIG_IP_DCCP=m CONFIG_INET_DCCP_DIAG=m CONFIG_IP_DCCP_ACKVEC=y @@ -269,15 +260,7 @@ CONFIG_IP_DCCP_CCID3_RTO=100 # # CONFIG_IP_DCCP_DEBUG is not set # CONFIG_NET_DCCPPROBE is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# # CONFIG_IP_SCTP is not set - -# -# TIPC Configuration (EXPERIMENTAL) -# # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set @@ -314,6 +297,7 @@ CONFIG_NET_TCPPROBE=m # CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set # CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set # # Device Drivers @@ -328,26 +312,10 @@ CONFIG_FW_LOADER=y # CONFIG_DEBUG_DRIVER is not set # CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# CONFIG_CONNECTOR=m # CONFIG_MTD is not set - -# -# Parallel port support -# # CONFIG_PARPORT is not set - -# -# Plug and Play support -# -# CONFIG_PNPACPI is not set - -# -# Block devices -# +CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set @@ -364,18 +332,11 @@ CONFIG_CDROM_PKTCDVD=m CONFIG_CDROM_PKTCDVD_BUFFERS=8 CONFIG_CDROM_PKTCDVD_WCACHE=y CONFIG_ATA_OVER_ETH=m - -# -# Misc devices -# +CONFIG_MISC_DEVICES=y # CONFIG_PHANTOM is not set +# CONFIG_EEPROM_93CX6 is not set # CONFIG_SGI_IOC4 is not set # CONFIG_TIFM_CORE is not set -# CONFIG_BLINK is not set - -# -# ATA/ATAPI/MFM/RLL support -# CONFIG_IDE=y CONFIG_BLK_DEV_IDE=y @@ -440,6 +401,7 @@ CONFIG_BLK_DEV_IDEDMA=y # CONFIG_RAID_ATTRS=m CONFIG_SCSI=y +CONFIG_SCSI_DMA=y # CONFIG_SCSI_TGT is not set CONFIG_SCSI_NETLINK=y CONFIG_SCSI_PROC_FS=y @@ -505,7 +467,6 @@ CONFIG_ISCSI_TCP=m # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set -# CONFIG_SCSI_ESP_CORE is not set # CONFIG_SCSI_SUNESP is not set # CONFIG_SCSI_SRP is not set # CONFIG_ATA is not set @@ -545,30 +506,16 @@ CONFIG_DM_ZERO=m # # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set - -# -# I2O device support -# # CONFIG_I2O is not set - -# -# Network device support -# CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set CONFIG_DUMMY=m # CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set - -# -# ARCnet devices -# # CONFIG_ARCNET is not set # CONFIG_PHYLIB is not set - -# -# Ethernet (10 or 100Mbit) -# CONFIG_NET_ETHERNET=y CONFIG_MII=m # CONFIG_SUNLANCE is not set @@ -578,10 +525,6 @@ CONFIG_MII=m # CONFIG_SUNGEM is not set CONFIG_CASSINI=m # CONFIG_NET_VENDOR_3COM is not set - -# -# Tulip family network device support -# # CONFIG_NET_TULIP is not set # CONFIG_HP100 is not set CONFIG_NET_PCI=y @@ -617,7 +560,6 @@ CONFIG_E1000_NAPI=y # CONFIG_SIS190 is not set # CONFIG_SKGE is not set # CONFIG_SKY2 is not set -# CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=m CONFIG_BNX2=m @@ -631,11 +573,6 @@ CONFIG_NETDEV_10000=y # CONFIG_MYRI10GE is not set # CONFIG_NETXEN_NIC is not set # CONFIG_MLX4_CORE is not set -CONFIG_MLX4_DEBUG=y - -# -# Token Ring devices -# # CONFIG_TR is not set # @@ -665,6 +602,7 @@ CONFIG_PPP_DEFLATE=m CONFIG_PPP_BSDCOMP=m CONFIG_PPP_MPPE=m CONFIG_PPPOE=m +# CONFIG_PPPOL2TP is not set # CONFIG_SLIP is not set CONFIG_SLHC=m # CONFIG_NET_FC is not set @@ -677,10 +615,6 @@ CONFIG_SLHC=m # ISDN subsystem # # CONFIG_ISDN is not set - -# -# Telephony Support -# # CONFIG_PHONE is not set # @@ -688,6 +622,7 @@ CONFIG_SLHC=m # CONFIG_INPUT=y # CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set # # Userland interfaces @@ -733,7 +668,6 @@ CONFIG_INPUT_SPARCSPKR=y # CONFIG_INPUT_POWERMATE is not set # CONFIG_INPUT_YEALINK is not set # CONFIG_INPUT_UINPUT is not set -# CONFIG_INPUT_POLLDEV is not set # # Hardware I/O ports @@ -773,10 +707,6 @@ CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y # CONFIG_LEGACY_PTYS is not set - -# -# IPMI -# # CONFIG_IPMI_HANDLER is not set # CONFIG_WATCHDOG is not set # CONFIG_HW_RANDOM is not set @@ -785,10 +715,6 @@ CONFIG_RTC=y # CONFIG_APPLICOM is not set # CONFIG_DRM is not set # CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# # CONFIG_TCG_TPM is not set CONFIG_DEVPORT=y CONFIG_I2C=y @@ -822,6 +748,7 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set +# CONFIG_I2C_TAOS_EVM is not set # CONFIG_I2C_STUB is not set # CONFIG_I2C_TINY_USB is not set # CONFIG_I2C_VIA is not set @@ -833,11 +760,13 @@ CONFIG_I2C_ALGOBIT=y # # CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_DS1374 is not set +# CONFIG_DS1682 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCA9539 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_SENSORS_MAX6875 is not set +# CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set @@ -848,11 +777,8 @@ CONFIG_I2C_ALGOBIT=y # # CONFIG_SPI is not set # CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# # CONFIG_W1 is not set +# CONFIG_POWER_SUPPLY is not set CONFIG_HWMON=y # CONFIG_HWMON_VID is not set # CONFIG_SENSORS_ABITUGURU is not set @@ -949,6 +875,8 @@ CONFIG_FB_TILEBLITTING=y # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set # CONFIG_FB_SBUS is not set +# CONFIG_FB_XVR500 is not set +# CONFIG_FB_XVR2500 is not set # CONFIG_FB_S1D13XXX is not set # CONFIG_FB_NVIDIA is not set # CONFIG_FB_RIVA is not set @@ -970,9 +898,6 @@ CONFIG_FB_RADEON_I2C=y # CONFIG_FB_TRIDENT is not set # CONFIG_FB_ARK is not set # CONFIG_FB_PM3 is not set -# CONFIG_FB_XVR500 is not set -# CONFIG_FB_XVR2500 is not set -# CONFIG_FB_PCI is not set # CONFIG_FB_VIRTUAL is not set # @@ -1118,10 +1043,7 @@ CONFIG_SND_SUN_CS4231=m # # CONFIG_SOUND_PRIME is not set CONFIG_AC97_BUS=m - -# -# HID Devices -# +CONFIG_HID_SUPPORT=y CONFIG_HID=y # CONFIG_HID_DEBUG is not set @@ -1132,10 +1054,7 @@ CONFIG_USB_HID=y # CONFIG_USB_HIDINPUT_POWERBOOK is not set # CONFIG_HID_FF is not set CONFIG_USB_HIDDEV=y - -# -# USB support -# +CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y @@ -1157,7 +1076,6 @@ CONFIG_USB_EHCI_HCD=m # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set -# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=y # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set @@ -1165,6 +1083,7 @@ CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=m # CONFIG_USB_SL811_HCD is not set +# CONFIG_USB_R8A66597_HCD is not set # # USB Device Class drivers @@ -1256,17 +1175,9 @@ CONFIG_USB_STORAGE=m # # LED Triggers # - -# -# InfiniBand support -# # CONFIG_INFINIBAND is not set # -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# # Real Time Clock # # CONFIG_RTC_CLASS is not set @@ -1387,7 +1298,6 @@ CONFIG_RAMFS=y # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set # # Partition Types @@ -1465,8 +1375,10 @@ CONFIG_DEBUG_FS=y CONFIG_DEBUG_KERNEL=y # CONFIG_DEBUG_SHIRQ is not set CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHED_DEBUG is not set CONFIG_SCHEDSTATS=y # CONFIG_TIMER_STATS is not set +# CONFIG_SLUB_DEBUG_ON is not set # CONFIG_DEBUG_RT_MUTEXES is not set # CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set @@ -1496,10 +1408,10 @@ CONFIG_FORCED_INLINING=y CONFIG_KEYS=y # CONFIG_KEYS_DEBUG_PROC_KEYS is not set # CONFIG_SECURITY is not set - -# -# Cryptographic options -# +CONFIG_XOR_BLOCKS=m +CONFIG_ASYNC_CORE=m +CONFIG_ASYNC_MEMCPY=m +CONFIG_ASYNC_XOR=m CONFIG_CRYPTO=y CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_BLKCIPHER=y @@ -1539,10 +1451,7 @@ CONFIG_CRYPTO_MICHAEL_MIC=m CONFIG_CRYPTO_CRC32C=m CONFIG_CRYPTO_CAMELLIA=m CONFIG_CRYPTO_TEST=m - -# -# Hardware crypto devices -# +CONFIG_CRYPTO_HW=y # # Library routines diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c index ba01533f4e03..fa1f04d756a2 100644 --- a/arch/sparc64/kernel/ds.c +++ b/arch/sparc64/kernel/ds.c @@ -1013,6 +1013,19 @@ static void ds_up(struct ds_info *dp) dp->hs_state = DS_HS_START; } +static void ds_reset(struct ds_info *dp) +{ + int i; + + dp->hs_state = 0; + + for (i = 0; i < ARRAY_SIZE(ds_states); i++) { + struct ds_cap_state *cp = &ds_states[i]; + + cp->state = CAP_STATE_UNKNOWN; + } +} + static void ds_event(void *arg, int event) { struct ds_info *dp = arg; @@ -1028,6 +1041,12 @@ static void ds_event(void *arg, int event) return; } + if (event == LDC_EVENT_RESET) { + ds_reset(dp); + spin_unlock_irqrestore(&ds_lock, flags); + return; + } + if (event != LDC_EVENT_DATA_READY) { printk(KERN_WARNING PFX "Unexpected LDC event %d\n", event); spin_unlock_irqrestore(&ds_lock, flags); diff --git a/arch/sparc64/kernel/hvtramp.S b/arch/sparc64/kernel/hvtramp.S index 76a090e2c2a8..a55c252e18cc 100644 --- a/arch/sparc64/kernel/hvtramp.S +++ b/arch/sparc64/kernel/hvtramp.S @@ -10,6 +10,7 @@ #include <asm/hvtramp.h> #include <asm/pstate.h> #include <asm/ptrace.h> +#include <asm/head.h> #include <asm/asi.h> .text @@ -28,7 +29,7 @@ * First setup basic privileged cpu state. */ hv_cpu_startup: - wrpr %g0, 0, %gl + SET_GL(0) wrpr %g0, 15, %pil wrpr %g0, 0, %canrestore wrpr %g0, 0, %otherwin diff --git a/arch/sparc64/kernel/mdesc.c b/arch/sparc64/kernel/mdesc.c index de5310ffdb48..302ba5e5a0bb 100644 --- a/arch/sparc64/kernel/mdesc.c +++ b/arch/sparc64/kernel/mdesc.c @@ -137,7 +137,7 @@ static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_size) sizeof(struct mdesc_hdr) + mdesc_size); - base = kmalloc(handle_size + 15, GFP_KERNEL); + base = kmalloc(handle_size + 15, GFP_KERNEL | __GFP_NOFAIL); if (base) { struct mdesc_handle *hp; unsigned long addr; @@ -214,18 +214,83 @@ void mdesc_release(struct mdesc_handle *hp) } EXPORT_SYMBOL(mdesc_release); +static DEFINE_MUTEX(mdesc_mutex); +static struct mdesc_notifier_client *client_list; + +void mdesc_register_notifier(struct mdesc_notifier_client *client) +{ + u64 node; + + mutex_lock(&mdesc_mutex); + client->next = client_list; + client_list = client; + + mdesc_for_each_node_by_name(cur_mdesc, node, client->node_name) + client->add(cur_mdesc, node); + + mutex_unlock(&mdesc_mutex); +} + +/* Run 'func' on nodes which are in A but not in B. */ +static void invoke_on_missing(const char *name, + struct mdesc_handle *a, + struct mdesc_handle *b, + void (*func)(struct mdesc_handle *, u64)) +{ + u64 node; + + mdesc_for_each_node_by_name(a, node, name) { + const u64 *id = mdesc_get_property(a, node, "id", NULL); + int found = 0; + u64 fnode; + + mdesc_for_each_node_by_name(b, fnode, name) { + const u64 *fid = mdesc_get_property(b, fnode, + "id", NULL); + + if (*id == *fid) { + found = 1; + break; + } + } + if (!found) + func(a, node); + } +} + +static void notify_one(struct mdesc_notifier_client *p, + struct mdesc_handle *old_hp, + struct mdesc_handle *new_hp) +{ + invoke_on_missing(p->node_name, old_hp, new_hp, p->remove); + invoke_on_missing(p->node_name, new_hp, old_hp, p->add); +} + +static void mdesc_notify_clients(struct mdesc_handle *old_hp, + struct mdesc_handle *new_hp) +{ + struct mdesc_notifier_client *p = client_list; + + while (p) { + notify_one(p, old_hp, new_hp); + p = p->next; + } +} + void mdesc_update(void) { unsigned long len, real_len, status; struct mdesc_handle *hp, *orig_hp; unsigned long flags; + mutex_lock(&mdesc_mutex); + (void) sun4v_mach_desc(0UL, 0UL, &len); hp = mdesc_alloc(len, &kmalloc_mdesc_memops); if (!hp) { printk(KERN_ERR "MD: mdesc alloc fails\n"); - return; + goto out; } status = sun4v_mach_desc(__pa(&hp->mdesc), len, &real_len); @@ -234,18 +299,25 @@ void mdesc_update(void) status); atomic_dec(&hp->refcnt); mdesc_free(hp); - return; + goto out; } spin_lock_irqsave(&mdesc_lock, flags); orig_hp = cur_mdesc; cur_mdesc = hp; + spin_unlock_irqrestore(&mdesc_lock, flags); + mdesc_notify_clients(orig_hp, hp); + + spin_lock_irqsave(&mdesc_lock, flags); if (atomic_dec_and_test(&orig_hp->refcnt)) mdesc_free(orig_hp); else list_add(&orig_hp->list, &mdesc_zombie_list); spin_unlock_irqrestore(&mdesc_lock, flags); + +out: + mutex_unlock(&mdesc_mutex); } static struct mdesc_elem *node_block(struct mdesc_hdr *mdesc) diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c index 203e87301005..fb13775b3682 100644 --- a/arch/sparc64/kernel/signal.c +++ b/arch/sparc64/kernel/signal.c @@ -289,9 +289,7 @@ void do_rt_sigreturn(struct pt_regs *regs) struct rt_signal_frame __user *sf; unsigned long tpc, tnpc, tstate; __siginfo_fpu_t __user *fpu_save; - mm_segment_t old_fs; sigset_t set; - stack_t st; int err; /* Always make any pending restarted system calls return -EINTR */ @@ -327,20 +325,13 @@ void do_rt_sigreturn(struct pt_regs *regs) err |= restore_fpu_state(regs, &sf->fpu_state); err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t)); - err |= __copy_from_user(&st, &sf->stack, sizeof(stack_t)); - + err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf); + if (err) goto segv; - + regs->tpc = tpc; regs->tnpc = tnpc; - - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - old_fs = get_fs(); - set_fs(KERNEL_DS); - do_sigaltstack((const stack_t __user *) &st, NULL, (unsigned long)sf); - set_fs(old_fs); sigdelsetmask(&set, ~_BLOCKABLE); spin_lock_irq(¤t->sighand->siglock); diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 00a9e3286c83..6ef2d299fb10 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -2225,6 +2225,7 @@ void die_if_kernel(char *str, struct pt_regs *regs) notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV); __asm__ __volatile__("flushw"); __show_regs(regs); + add_taint(TAINT_DIE); if (regs->tstate & TSTATE_PRIV) { struct reg_window *rw = (struct reg_window *) (regs->u_regs[UREG_FP] + STACK_BIAS); diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c index 49569b44ea1f..8d3cc4fdb557 100644 --- a/arch/sparc64/kernel/vio.c +++ b/arch/sparc64/kernel/vio.c @@ -201,10 +201,11 @@ static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp, static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, struct device *parent) { - const char *type, *compat; + const char *type, *compat, *bus_id_name; struct device_node *dp; struct vio_dev *vdev; int err, tlen, clen; + const u64 *id; type = mdesc_get_property(hp, mp, "device-type", &tlen); if (!type) { @@ -220,6 +221,16 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, return NULL; } + bus_id_name = type; + if (!strcmp(type, "domain-services-port")) + bus_id_name = "ds"; + + if (strlen(bus_id_name) >= KOBJ_NAME_LEN - 4) { + printk(KERN_ERR "VIO: bus_id_name [%s] is too long.\n", + bus_id_name); + return NULL; + } + compat = mdesc_get_property(hp, mp, "device-type", &clen); if (!compat) { clen = 0; @@ -249,7 +260,14 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, vio_fill_channel_info(hp, mp, vdev); - snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%lx", mp); + id = mdesc_get_property(hp, mp, "id", NULL); + if (!id) + snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%s", + bus_id_name); + else + snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%s-%lu", + bus_id_name, *id); + vdev->dev.parent = parent; vdev->dev.bus = &vio_bus_type; vdev->dev.release = vio_dev_release; @@ -269,6 +287,8 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, } vdev->dp = dp; + printk(KERN_ERR "VIO: Adding device %s\n", vdev->dev.bus_id); + err = device_register(&vdev->dev); if (err) { printk(KERN_ERR "VIO: Could not register device %s, err=%d\n", @@ -283,46 +303,46 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, return vdev; } -static void walk_tree(struct mdesc_handle *hp, u64 n, struct vio_dev *parent) +static void vio_add(struct mdesc_handle *hp, u64 node) { - u64 a; - - mdesc_for_each_arc(a, hp, n, MDESC_ARC_TYPE_FWD) { - struct vio_dev *vdev; - u64 target; - - target = mdesc_arc_target(hp, a); - vdev = vio_create_one(hp, target, &parent->dev); - if (vdev) - walk_tree(hp, target, vdev); - } + (void) vio_create_one(hp, node, &root_vdev->dev); } -static void create_devices(struct mdesc_handle *hp, u64 root) +static int vio_md_node_match(struct device *dev, void *arg) { - u64 mp; + struct vio_dev *vdev = to_vio_dev(dev); - root_vdev = vio_create_one(hp, root, NULL); - if (!root_vdev) { - printk(KERN_ERR "VIO: Coult not create root device.\n"); - return; - } + if (vdev->mp == (u64) arg) + return 1; - walk_tree(hp, root, root_vdev); + return 0; +} + +static void vio_remove(struct mdesc_handle *hp, u64 node) +{ + struct device *dev; - /* Domain services is odd as it doesn't sit underneath the - * channel-devices node, so we plug it in manually. - */ - mp = mdesc_node_by_name(hp, MDESC_NODE_NULL, "domain-services"); - if (mp != MDESC_NODE_NULL) { - struct vio_dev *parent = vio_create_one(hp, mp, - &root_vdev->dev); + dev = device_find_child(&root_vdev->dev, (void *) node, + vio_md_node_match); + if (dev) { + printk(KERN_INFO "VIO: Removing device %s\n", dev->bus_id); - if (parent) - walk_tree(hp, mp, parent); + device_unregister(dev); } } +static struct mdesc_notifier_client vio_device_notifier = { + .add = vio_add, + .remove = vio_remove, + .node_name = "virtual-device-port", +}; + +static struct mdesc_notifier_client vio_ds_notifier = { + .add = vio_add, + .remove = vio_remove, + .node_name = "domain-services-port", +}; + const char *channel_devices_node = "channel-devices"; const char *channel_devices_compat = "SUNW,sun4v-channel-devices"; const char *cfg_handle_prop = "cfg-handle"; @@ -381,11 +401,19 @@ static int __init vio_init(void) cdev_cfg_handle = *cfg_handle; - create_devices(hp, root); + root_vdev = vio_create_one(hp, root, NULL); + err = -ENODEV; + if (!root_vdev) { + printk(KERN_ERR "VIO: Coult not create root device.\n"); + goto out_release; + } + + mdesc_register_notifier(&vio_device_notifier); + mdesc_register_notifier(&vio_ds_notifier); mdesc_release(hp); - return 0; + return err; out_release: mdesc_release(hp); diff --git a/arch/sparc64/kernel/viohs.c b/arch/sparc64/kernel/viohs.c index 15613add45d1..09126fc338ba 100644 --- a/arch/sparc64/kernel/viohs.c +++ b/arch/sparc64/kernel/viohs.c @@ -78,6 +78,24 @@ static int start_handshake(struct vio_driver_state *vio) return 0; } +static void flush_rx_dring(struct vio_driver_state *vio) +{ + struct vio_dring_state *dr; + u64 ident; + + BUG_ON(!(vio->dr_state & VIO_DR_STATE_RXREG)); + + dr = &vio->drings[VIO_DRIVER_RX_RING]; + ident = dr->ident; + + BUG_ON(!vio->desc_buf); + kfree(vio->desc_buf); + vio->desc_buf = NULL; + + memset(dr, 0, sizeof(*dr)); + dr->ident = ident; +} + void vio_link_state_change(struct vio_driver_state *vio, int event) { if (event == LDC_EVENT_UP) { @@ -98,6 +116,16 @@ void vio_link_state_change(struct vio_driver_state *vio, int event) break; } start_handshake(vio); + } else if (event == LDC_EVENT_RESET) { + vio->hs_state = VIO_HS_INVALID; + + if (vio->dr_state & VIO_DR_STATE_RXREG) + flush_rx_dring(vio); + + vio->dr_state = 0x00; + memset(&vio->ver, 0, sizeof(vio->ver)); + + ldc_disconnect(vio->lp); } } EXPORT_SYMBOL(vio_link_state_change); @@ -396,6 +424,8 @@ static int process_dreg_info(struct vio_driver_state *vio, if (vio->dr_state & VIO_DR_STATE_RXREG) goto send_nack; + BUG_ON(vio->desc_buf); + vio->desc_buf = kzalloc(pkt->descr_size, GFP_ATOMIC); if (!vio->desc_buf) goto send_nack; diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S index 3ad10f3027e4..481861764deb 100644 --- a/arch/sparc64/kernel/vmlinux.lds.S +++ b/arch/sparc64/kernel/vmlinux.lds.S @@ -90,10 +90,8 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(PAGE_SIZE); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(PAGE_SIZE) + . = ALIGN(PAGE_SIZE); __init_end = .; __bss_start = .; diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index b582024d2199..17123e9ecf78 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -278,7 +278,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) struct mm_struct *mm = current->mm; struct vm_area_struct *vma; unsigned int insn = 0; - int si_code, fault_code; + int si_code, fault_code, fault; unsigned long address, mm_rss; fault_code = get_thread_fault_code(); @@ -415,20 +415,18 @@ good_area: goto bad_area; } - switch (handle_mm_fault(mm, vma, address, (fault_code & FAULT_CODE_WRITE))) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, (fault_code & FAULT_CODE_WRITE)); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c index e94f6e5d9455..7736411f244f 100644 --- a/arch/sparc64/solaris/socksys.c +++ b/arch/sparc64/solaris/socksys.c @@ -199,6 +199,5 @@ int __init init_socksys(void) void __exit cleanup_socksys(void) { - if (unregister_chrdev(30, "socksys")) - printk ("Couldn't unregister socksys character device\n"); + unregister_chrdev(30, "socksys"); } diff --git a/arch/um/drivers/pcap_user.c b/arch/um/drivers/pcap_user.c index 483aa15222a4..1316456e2a28 100644 --- a/arch/um/drivers/pcap_user.c +++ b/arch/um/drivers/pcap_user.c @@ -53,7 +53,7 @@ static int pcap_open(void *data) return -EIO; } - pri->compiled = um_kmalloc(sizeof(struct bpf_program)); + pri->compiled = kmalloc(sizeof(struct bpf_program), UM_GFP_KERNEL); if(pri->compiled == NULL){ printk(UM_KERN_ERR "pcap_open : kmalloc failed\n"); return -ENOMEM; diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index 627742d89434..6916c8888dba 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -52,17 +52,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - ret = -EIO; - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp, p); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: @@ -72,11 +64,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = -EIO; - if (access_process_vm(child, addr, &data, sizeof(data), - 1) != sizeof(data)) - break; - ret = 0; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c index abab90c3803f..3850d53f79fd 100644 --- a/arch/um/kernel/trap.c +++ b/arch/um/kernel/trap.c @@ -76,23 +76,24 @@ good_area: goto out; do { + int fault; survive: - switch (handle_mm_fault(mm, vma, address, is_write)){ - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - err = -EACCES; - goto out; - case VM_FAULT_OOM: - err = -ENOMEM; - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, is_write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) { + err = -ENOMEM; + goto out_of_memory; + } else if (fault & VM_FAULT_SIGBUS) { + err = -EACCES; + goto out; + } BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; + pgd = pgd_offset(mm, address); pud = pud_offset(pgd, address); pmd = pmd_offset(pud, address); diff --git a/arch/v850/kernel/ptrace.c b/arch/v850/kernel/ptrace.c index a9b09343097d..a458ac941b25 100644 --- a/arch/v850/kernel/ptrace.c +++ b/arch/v850/kernel/ptrace.c @@ -117,24 +117,16 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) int rval; switch (request) { - unsigned long val, copied; + unsigned long val; case PTRACE_PEEKTEXT: /* read word at location addr. */ case PTRACE_PEEKDATA: - copied = access_process_vm(child, addr, &val, sizeof(val), 0); - rval = -EIO; - if (copied != sizeof(val)) - break; - rval = put_user(val, (unsigned long *)data); + rval = generic_ptrace_peekdata(child, addr, data); goto out; case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - rval = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) - == sizeof(data)) - break; - rval = -EIO; + rval = generic_ptrace_pokedata(child, addr, data); goto out; /* Read/write the word at location ADDR in the registers. */ diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 8bdd25ac1542..14bf8ce3ea23 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -774,8 +774,8 @@ menu "Instrumentation Support" source "arch/x86_64/oprofile/Kconfig" config KPROBES - bool "Kprobes (EXPERIMENTAL)" - depends on KALLSYMS && EXPERIMENTAL && MODULES + bool "Kprobes" + depends on KALLSYMS && MODULES help Kprobes allows you to trap at almost any kernel address and execute a callback function. register_kprobe() establishes diff --git a/arch/x86_64/ia32/ia32_aout.c b/arch/x86_64/ia32/ia32_aout.c index fe83edb93c10..08781370256d 100644 --- a/arch/x86_64/ia32/ia32_aout.c +++ b/arch/x86_64/ia32/ia32_aout.c @@ -404,7 +404,7 @@ beyond_if: set_brk(current->mm->start_brk, current->mm->brk); - retval = ia32_setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT); + retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT); if (retval < 0) { /* Someone check-me: is this error path enough? */ send_sig(SIGKILL, current, 0); diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c index 185399baaf6d..ed56a8806eab 100644 --- a/arch/x86_64/ia32/ia32_binfmt.c +++ b/arch/x86_64/ia32/ia32_binfmt.c @@ -232,9 +232,6 @@ do { \ #define load_elf_binary load_elf32_binary #define ELF_PLAT_INIT(r, load_addr) elf32_init(r) -#define setup_arg_pages(bprm, stack_top, exec_stack) \ - ia32_setup_arg_pages(bprm, stack_top, exec_stack) -int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int executable_stack); #undef start_thread #define start_thread(regs,new_rip,new_rsp) do { \ @@ -286,61 +283,6 @@ static void elf32_init(struct pt_regs *regs) me->thread.es = __USER_DS; } -int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, - int executable_stack) -{ - unsigned long stack_base; - struct vm_area_struct *mpnt; - struct mm_struct *mm = current->mm; - int i, ret; - - stack_base = stack_top - MAX_ARG_PAGES * PAGE_SIZE; - mm->arg_start = bprm->p + stack_base; - - bprm->p += stack_base; - if (bprm->loader) - bprm->loader += stack_base; - bprm->exec += stack_base; - - mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (!mpnt) - return -ENOMEM; - - down_write(&mm->mmap_sem); - { - mpnt->vm_mm = mm; - mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p; - mpnt->vm_end = stack_top; - if (executable_stack == EXSTACK_ENABLE_X) - mpnt->vm_flags = VM_STACK_FLAGS | VM_EXEC; - else if (executable_stack == EXSTACK_DISABLE_X) - mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC; - else - mpnt->vm_flags = VM_STACK_FLAGS; - mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC) ? - PAGE_COPY_EXEC : PAGE_COPY; - if ((ret = insert_vm_struct(mm, mpnt))) { - up_write(&mm->mmap_sem); - kmem_cache_free(vm_area_cachep, mpnt); - return ret; - } - mm->stack_vm = mm->total_vm = vma_pages(mpnt); - } - - for (i = 0 ; i < MAX_ARG_PAGES ; i++) { - struct page *page = bprm->page[i]; - if (page) { - bprm->page[i] = NULL; - install_arg_page(mpnt, page, stack_base); - } - stack_base += PAGE_SIZE; - } - up_write(&mm->mmap_sem); - - return 0; -} -EXPORT_SYMBOL(ia32_setup_arg_pages); - #ifdef CONFIG_SYSCTL /* Register vsyscall32 into the ABI table */ #include <linux/sysctl.h> diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index 782dea819438..3f66e970d86f 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -719,4 +719,5 @@ ia32_sys_call_table: .quad compat_sys_signalfd .quad compat_sys_timerfd .quad sys_eventfd + .quad sys32_fallocate ia32_syscall_end: diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c index 99a78a3cce7c..bee96d614432 100644 --- a/arch/x86_64/ia32/sys_ia32.c +++ b/arch/x86_64/ia32/sys_ia32.c @@ -879,3 +879,11 @@ asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi, return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo, len, advice); } + +asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_lo, + unsigned offset_hi, unsigned len_lo, + unsigned len_hi) +{ + return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo, + ((u64)len_hi << 32) | len_lo); +} diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c index 195b7034a148..4277f2b27e6d 100644 --- a/arch/x86_64/kernel/acpi/sleep.c +++ b/arch/x86_64/kernel/acpi/sleep.c @@ -55,7 +55,7 @@ /* address in low memory of the wakeup routine. */ unsigned long acpi_wakeup_address = 0; -unsigned long acpi_video_flags; +unsigned long acpi_realmode_flags; extern char wakeup_start, wakeup_end; extern unsigned long acpi_copy_wakeup_routine(unsigned long); @@ -103,9 +103,11 @@ static int __init acpi_sleep_setup(char *str) { while ((str != NULL) && (*str != '\0')) { if (strncmp(str, "s3_bios", 7) == 0) - acpi_video_flags = 1; + acpi_realmode_flags |= 1; if (strncmp(str, "s3_mode", 7) == 0) - acpi_video_flags |= 2; + acpi_realmode_flags |= 2; + if (strncmp(str, "s3_beep", 7) == 0) + acpi_realmode_flags |= 4; str = strchr(str, ','); if (str != NULL) str += strspn(str, ", \t"); diff --git a/arch/x86_64/kernel/acpi/wakeup.S b/arch/x86_64/kernel/acpi/wakeup.S index 8550a6ffa275..13f1480cbec9 100644 --- a/arch/x86_64/kernel/acpi/wakeup.S +++ b/arch/x86_64/kernel/acpi/wakeup.S @@ -16,6 +16,21 @@ # cs = 0x1234, eip = 0x05 # +#define BEEP \ + inb $97, %al; \ + outb %al, $0x80; \ + movb $3, %al; \ + outb %al, $97; \ + outb %al, $0x80; \ + movb $-74, %al; \ + outb %al, $67; \ + outb %al, $0x80; \ + movb $-119, %al; \ + outb %al, $66; \ + outb %al, $0x80; \ + movb $15, %al; \ + outb %al, $66; + ALIGN .align 16 @@ -33,6 +48,13 @@ wakeup_code: movw %cs, %ax movw %ax, %ds # Make ds:0 point to wakeup_start movw %ax, %ss + + # Data segment must be set up before we can see whether to beep. + testl $4, realmode_flags - wakeup_code + jz 1f + BEEP +1: + # Private stack is needed for ASUS board mov $(wakeup_stack - wakeup_code), %sp @@ -48,7 +70,7 @@ wakeup_code: testl %eax, %eax jnz no_longmode - testl $1, video_flags - wakeup_code + testl $1, realmode_flags - wakeup_code jz 1f lcall $0xc000,$3 movw %cs, %ax @@ -56,7 +78,7 @@ wakeup_code: movw %ax, %ss 1: - testl $2, video_flags - wakeup_code + testl $2, realmode_flags - wakeup_code jz 1f mov video_mode - wakeup_code, %ax call mode_seta @@ -230,7 +252,7 @@ gdt_48a: real_magic: .quad 0 video_mode: .quad 0 -video_flags: .quad 0 +realmode_flags: .quad 0 .code16 bogus_real_magic: @@ -346,8 +368,8 @@ ENTRY(acpi_copy_wakeup_routine) movl saved_video_mode, %edx movl %edx, video_mode - wakeup_start (,%rdi) - movl acpi_video_flags, %edx - movl %edx, video_flags - wakeup_start (,%rdi) + movl acpi_realmode_flags, %edx + movl %edx, realmode_flags - wakeup_start (,%rdi) movq $0x12345678, real_magic - wakeup_start (,%rdi) movq $0x123456789abcdef0, %rdx movq %rdx, saved_magic diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c index 296d2b0c5d88..fd9aff3f3890 100644 --- a/arch/x86_64/kernel/early_printk.c +++ b/arch/x86_64/kernel/early_printk.c @@ -6,6 +6,7 @@ #include <asm/io.h> #include <asm/processor.h> #include <asm/fcntl.h> +#include <xen/hvc-console.h> /* Simple VGA output */ @@ -242,6 +243,10 @@ static int __init setup_early_printk(char *buf) simnow_init(buf + 6); early_console = &simnow_console; keep_early = 1; +#ifdef CONFIG_HVC_XEN + } else if (!strncmp(buf, "xen", 3)) { + early_console = &xenboot_console; +#endif } if (keep_early) diff --git a/arch/x86_64/kernel/init_task.c b/arch/x86_64/kernel/init_task.c index 3dc5854ba21e..4ff33d4f8551 100644 --- a/arch/x86_64/kernel/init_task.c +++ b/arch/x86_64/kernel/init_task.c @@ -44,7 +44,7 @@ EXPORT_SYMBOL(init_task); * section. Since TSS's are completely CPU-local, we want them * on exact cacheline boundaries, to eliminate cacheline ping-pong. */ -DEFINE_PER_CPU(struct tss_struct, init_tss) ____cacheline_internodealigned_in_smp = INIT_TSS; +DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; /* Copies of the original ist values from the tss are only accessed during * debugging, no special alignment required. diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index aa1d15991794..f3fb8174559e 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c @@ -174,7 +174,7 @@ static void do_mce_trigger(void) if (events != atomic_read(&mce_logged) && trigger[0]) { /* Small race window, but should be harmless. */ atomic_set(&mce_logged, events); - call_usermodehelper(trigger, trigger_argv, NULL, -1); + call_usermodehelper(trigger, trigger_argv, NULL, UMH_NO_WAIT); } } diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 931c64bad5e6..edbbc59b7523 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -296,7 +296,7 @@ static DEFINE_PER_CPU(unsigned, last_irq_sum); static DEFINE_PER_CPU(local_t, alert_counter); static DEFINE_PER_CPU(int, nmi_touch); -void touch_nmi_watchdog (void) +void touch_nmi_watchdog(void) { if (nmi_watchdog > 0) { unsigned cpu; @@ -306,8 +306,10 @@ void touch_nmi_watchdog (void) * do it ourselves because the alert count increase is not * atomic. */ - for_each_present_cpu (cpu) - per_cpu(nmi_touch, cpu) = 1; + for_each_present_cpu(cpu) { + if (per_cpu(nmi_touch, cpu) != 1) + per_cpu(nmi_touch, cpu) = 1; + } } touch_softlockup_watchdog(); diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index 9409117b9f19..e83cc67155ac 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c @@ -102,16 +102,25 @@ unsigned long convert_rip_to_linear(struct task_struct *child, struct pt_regs *r u32 *desc; unsigned long base; - down(&child->mm->context.sem); - desc = child->mm->context.ldt + (seg & ~7); - base = (desc[0] >> 16) | ((desc[1] & 0xff) << 16) | (desc[1] & 0xff000000); + seg &= ~7UL; - /* 16-bit code segment? */ - if (!((desc[1] >> 22) & 1)) - addr &= 0xffff; - addr += base; + down(&child->mm->context.sem); + if (unlikely((seg >> 3) >= child->mm->context.size)) + addr = -1L; /* bogus selector, access would fault */ + else { + desc = child->mm->context.ldt + seg; + base = ((desc[0] >> 16) | + ((desc[1] & 0xff) << 16) | + (desc[1] & 0xff000000)); + + /* 16-bit code segment? */ + if (!((desc[1] >> 22) & 1)) + addr &= 0xffff; + addr += base; + } up(&child->mm->context.sem); } + return addr; } @@ -313,17 +322,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ - case PTRACE_PEEKDATA: { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp,(unsigned long __user *) data); + case PTRACE_PEEKDATA: + ret = generic_ptrace_peekdata(child, addr, data); break; - } /* read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: { @@ -367,10 +368,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) /* when I and D space are separate, this will have to be fixed. */ case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - ret = 0; - if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); break; case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index 2ff468591625..0694940b2e73 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -357,7 +357,7 @@ __smp_call_function_single(int cpu, void (*func) (void *info), void *info, } /* - * smp_call_function_single - Run a function on another CPU + * smp_call_function_single - Run a function on a specific CPU * @func: The function to run. This must be fast and non-blocking. * @info: An arbitrary pointer to pass to the function. * @nonatomic: Currently unused. @@ -374,14 +374,18 @@ int smp_call_function_single (int cpu, void (*func) (void *info), void *info, { /* prevent preemption and reschedule on another processor */ int me = get_cpu(); + + /* Can deadlock when called with interrupts disabled */ + WARN_ON(irqs_disabled()); + if (cpu == me) { + local_irq_disable(); + func(info); + local_irq_enable(); put_cpu(); return 0; } - /* Can deadlock when called with interrupts disabled */ - WARN_ON(irqs_disabled()); - spin_lock_bh(&call_lock); __smp_call_function_single(cpu, func, info, nonatomic, wait); spin_unlock_bh(&call_lock); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 7fa155c394d9..8713ad4a4db1 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -34,6 +34,10 @@ #include <linux/bug.h> #include <linux/kdebug.h> +#if defined(CONFIG_EDAC) +#include <linux/edac.h> +#endif + #include <asm/system.h> #include <asm/io.h> #include <asm/atomic.h> @@ -330,6 +334,7 @@ static int print_trace_stack(void *data, char *name) static void print_trace_address(void *data, unsigned long addr) { + touch_nmi_watchdog(); printk_address(addr); } @@ -518,6 +523,7 @@ void __kprobes __die(const char * str, struct pt_regs * regs, long err) printk("\n"); notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV); show_registers(regs); + add_taint(TAINT_DIE); /* Executive summary in case the oops scrolled away */ printk(KERN_ALERT "RIP "); printk_address(regs->rip); @@ -717,6 +723,13 @@ mem_parity_error(unsigned char reason, struct pt_regs * regs) reason); printk(KERN_EMERG "You have some hardware problem, likely on the PCI bus.\n"); +#if defined(CONFIG_EDAC) + if(edac_handler_set()) { + edac_atomic_assert_error(); + return; + } +#endif + if (panic_on_unrecovered_nmi) panic("NMI: Not continuing"); diff --git a/arch/x86_64/kernel/tsc.c b/arch/x86_64/kernel/tsc.c index 48f9a8e6aa91..e850aa01e1b3 100644 --- a/arch/x86_64/kernel/tsc.c +++ b/arch/x86_64/kernel/tsc.c @@ -44,7 +44,7 @@ unsigned long long sched_clock(void) static int tsc_unstable; -static inline int check_tsc_unstable(void) +inline int check_tsc_unstable(void) { return tsc_unstable; } diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S index dbccfda8364f..5c57ea4591c1 100644 --- a/arch/x86_64/kernel/vmlinux.lds.S +++ b/arch/x86_64/kernel/vmlinux.lds.S @@ -48,7 +48,9 @@ SECTIONS __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) } __stop___ex_table = .; - BUG_TABLE + NOTES :text :note + + BUG_TABLE :text RODATA @@ -194,10 +196,8 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(4096); - __per_cpu_start = .; - .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(4096) + . = ALIGN(4096); __init_end = .; diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index 635e58d443d7..84f11728fc76 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -317,7 +317,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, struct vm_area_struct * vma; unsigned long address; const struct exception_table_entry *fixup; - int write; + int write, fault; unsigned long flags; siginfo_t info; @@ -450,19 +450,18 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ - switch (handle_mm_fault(mm, vma, address, write)) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - default: - goto out_of_memory; + fault = handle_mm_fault(mm, vma, address, write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; + BUG(); } - + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c index 14104ff63093..06a13d9b69db 100644 --- a/arch/xtensa/kernel/ptrace.c +++ b/arch/xtensa/kernel/ptrace.c @@ -50,18 +50,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { case PTRACE_PEEKTEXT: /* read word at location addr. */ case PTRACE_PEEKDATA: - { - unsigned long tmp; - int copied; - - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); - ret = -EIO; - if (copied != sizeof(tmp)) - break; - ret = put_user(tmp,(unsigned long *) data); - + ret = generic_ptrace_peekdata(child, addr, data); goto out; - } /* Read the word at location addr in the USER area. */ @@ -138,10 +128,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) case PTRACE_POKETEXT: /* write the word at location addr. */ case PTRACE_POKEDATA: - if (access_process_vm(child, addr, &data, sizeof(data), 1) - == sizeof(data)) - break; - ret = -EIO; + ret = generic_ptrace_pokedata(child, addr, data); goto out; case PTRACE_POKEUSR: diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c index 693ab268485e..c5e62f9d9f50 100644 --- a/arch/xtensa/kernel/traps.c +++ b/arch/xtensa/kernel/traps.c @@ -482,6 +482,7 @@ void die(const char * str, struct pt_regs * regs, long err) if (!user_mode(regs)) show_stack(NULL, (unsigned long*)regs->areg[1]); + add_taint(TAINT_DIE); spin_unlock_irq(&die_lock); if (in_interrupt()) diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S index b0582c3c5f8d..3e31512109f9 100644 --- a/arch/xtensa/kernel/vmlinux.lds.S +++ b/arch/xtensa/kernel/vmlinux.lds.S @@ -190,10 +190,7 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(4096); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; + PERCPU(4096) /* We need this dummy segment here */ diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c index 3dc6f2f07bbe..16004067add3 100644 --- a/arch/xtensa/mm/fault.c +++ b/arch/xtensa/mm/fault.c @@ -41,6 +41,7 @@ void do_page_fault(struct pt_regs *regs) siginfo_t info; int is_write, is_exec; + int fault; info.si_code = SEGV_MAPERR; @@ -102,20 +103,18 @@ good_area: * the fault. */ survive: - switch (handle_mm_fault(mm, vma, address, is_write)) { - case VM_FAULT_MINOR: - current->min_flt++; - break; - case VM_FAULT_MAJOR: - current->maj_flt++; - break; - case VM_FAULT_SIGBUS: - goto do_sigbus; - case VM_FAULT_OOM: - goto out_of_memory; - default: + fault = handle_mm_fault(mm, vma, address, is_write); + if (unlikely(fault & VM_FAULT_ERROR)) { + if (fault & VM_FAULT_OOM) + goto out_of_memory; + else if (fault & VM_FAULT_SIGBUS) + goto do_sigbus; BUG(); } + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; up_read(&mm->mmap_sem); return; diff --git a/block/Kconfig b/block/Kconfig index 6597b60e8e69..0768741d6813 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -52,11 +52,16 @@ config LSF endif # BLOCK config BLK_DEV_BSG - bool "Block layer SG support" + bool "Block layer SG support v4 (EXPERIMENTAL)" depends on (SCSI=y) && EXPERIMENTAL - default y ---help--- - Saying Y here will enable generic SG (SCSI generic) v4 - support for any block device. + Saying Y here will enable generic SG (SCSI generic) v4 support + for any block device. + + Unlike SG v3 (aka block/scsi_ioctl.c drivers/scsi/sg.c), SG v4 + can handle complicated SCSI commands: tagged variable length cdbs + with bidirectional data transfers and generic request/response + protocols (e.g. Task Management Functions and SMP in Serial + Attached SCSI). source block/Kconfig.iosched diff --git a/block/as-iosched.c b/block/as-iosched.c index 109e91b91ffa..3e316dd72529 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -1322,10 +1322,9 @@ static void *as_init_queue(request_queue_t *q) { struct as_data *ad; - ad = kmalloc_node(sizeof(*ad), GFP_KERNEL, q->node); + ad = kmalloc_node(sizeof(*ad), GFP_KERNEL | __GFP_ZERO, q->node); if (!ad) return NULL; - memset(ad, 0, sizeof(*ad)); ad->q = q; /* Identify what queue the data belongs to */ diff --git a/block/bsg.c b/block/bsg.c index 576933fe1860..baa04e7adf19 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -33,7 +33,8 @@ #include <scsi/scsi_driver.h> #include <scsi/sg.h> -static char bsg_version[] = "block layer sg (bsg) 0.4"; +#define BSG_DESCRIPTION "Block layer SCSI generic (bsg) driver" +#define BSG_VERSION "0.4" struct bsg_device { request_queue_t *queue; @@ -68,22 +69,15 @@ enum { #define dprintk(fmt, args...) #endif -#define list_entry_bc(entry) list_entry((entry), struct bsg_command, list) - -/* - * just for testing - */ -#define BSG_MAJOR (240) - static DEFINE_MUTEX(bsg_mutex); static int bsg_device_nr, bsg_minor_idx; -#define BSG_LIST_SIZE (8) -#define bsg_list_idx(minor) ((minor) & (BSG_LIST_SIZE - 1)) -static struct hlist_head bsg_device_list[BSG_LIST_SIZE]; +#define BSG_LIST_ARRAY_SIZE 8 +static struct hlist_head bsg_device_list[BSG_LIST_ARRAY_SIZE]; static struct class *bsg_class; static LIST_HEAD(bsg_class_list); +static int bsg_major; static struct kmem_cache *bsg_cmd_cachep; @@ -128,7 +122,7 @@ static struct bsg_command *bsg_alloc_command(struct bsg_device *bd) bd->queued_cmds++; spin_unlock_irq(&bd->lock); - bc = kmem_cache_alloc(bsg_cmd_cachep, GFP_USER); + bc = kmem_cache_zalloc(bsg_cmd_cachep, GFP_KERNEL); if (unlikely(!bc)) { spin_lock_irq(&bd->lock); bd->queued_cmds--; @@ -136,7 +130,6 @@ static struct bsg_command *bsg_alloc_command(struct bsg_device *bd) goto out; } - memset(bc, 0, sizeof(*bc)); bc->bd = bd; INIT_LIST_HEAD(&bc->list); dprintk("%s: returning free cmd %p\n", bd->name, bc); @@ -146,22 +139,12 @@ out: return bc; } -static inline void -bsg_del_done_cmd(struct bsg_device *bd, struct bsg_command *bc) -{ - bd->done_cmds--; - list_del(&bc->list); -} - -static inline void -bsg_add_done_cmd(struct bsg_device *bd, struct bsg_command *bc) +static inline struct hlist_head *bsg_dev_idx_hash(int index) { - bd->done_cmds++; - list_add_tail(&bc->list, &bd->done_list); - wake_up(&bd->wq_done); + return &bsg_device_list[index & (BSG_LIST_ARRAY_SIZE - 1)]; } -static inline int bsg_io_schedule(struct bsg_device *bd, int state) +static int bsg_io_schedule(struct bsg_device *bd) { DEFINE_WAIT(wait); int ret = 0; @@ -186,14 +169,11 @@ static inline int bsg_io_schedule(struct bsg_device *bd, int state) goto unlock; } - prepare_to_wait(&bd->wq_done, &wait, state); + prepare_to_wait(&bd->wq_done, &wait, TASK_UNINTERRUPTIBLE); spin_unlock_irq(&bd->lock); io_schedule(); finish_wait(&bd->wq_done, &wait); - if ((state == TASK_INTERRUPTIBLE) && signal_pending(current)) - ret = -ERESTARTSYS; - return ret; unlock: spin_unlock_irq(&bd->lock); @@ -272,7 +252,7 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr) { request_queue_t *q = bd->queue; struct request *rq, *next_rq = NULL; - int ret, rw = 0; /* shut up gcc */ + int ret, rw; unsigned int dxfer_len; void *dxferp = NULL; @@ -354,9 +334,11 @@ static void bsg_rq_end_io(struct request *rq, int uptodate) bc->hdr.duration = jiffies_to_msecs(jiffies - bc->hdr.duration); spin_lock_irqsave(&bd->lock, flags); - list_del(&bc->list); - bsg_add_done_cmd(bd, bc); + list_move_tail(&bc->list, &bd->done_list); + bd->done_cmds++; spin_unlock_irqrestore(&bd->lock, flags); + + wake_up(&bd->wq_done); } /* @@ -387,14 +369,15 @@ static void bsg_add_command(struct bsg_device *bd, request_queue_t *q, blk_execute_rq_nowait(q, NULL, rq, 1, bsg_rq_end_io); } -static inline struct bsg_command *bsg_next_done_cmd(struct bsg_device *bd) +static struct bsg_command *bsg_next_done_cmd(struct bsg_device *bd) { struct bsg_command *bc = NULL; spin_lock_irq(&bd->lock); if (bd->done_cmds) { - bc = list_entry_bc(bd->done_list.next); - bsg_del_done_cmd(bd, bc); + bc = list_entry(bd->done_list.next, struct bsg_command, list); + list_del(&bc->list); + bd->done_cmds--; } spin_unlock_irq(&bd->lock); @@ -450,8 +433,8 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr, hdr->response_len = 0; if (rq->sense_len && hdr->response) { - int len = min((unsigned int) hdr->max_response_len, - rq->sense_len); + int len = min_t(unsigned int, hdr->max_response_len, + rq->sense_len); ret = copy_to_user((void*)(unsigned long)hdr->response, rq->sense, len); @@ -486,7 +469,7 @@ static int bsg_complete_all_commands(struct bsg_device *bd) */ ret = 0; do { - ret = bsg_io_schedule(bd, TASK_UNINTERRUPTIBLE); + ret = bsg_io_schedule(bd); /* * look for -ENODATA specifically -- we'll sometimes get * -ERESTARTSYS when we've taken a signal, but we can't @@ -523,7 +506,7 @@ static int bsg_complete_all_commands(struct bsg_device *bd) return ret; } -static ssize_t +static int __bsg_read(char __user *buf, size_t count, struct bsg_device *bd, const struct iovec *iov, ssize_t *bytes_read) { @@ -550,7 +533,7 @@ __bsg_read(char __user *buf, size_t count, struct bsg_device *bd, ret = blk_complete_sgv4_hdr_rq(bc->rq, &bc->hdr, bc->bio, bc->bidi_bio); - if (copy_to_user(buf, (char *) &bc->hdr, sizeof(bc->hdr))) + if (copy_to_user(buf, &bc->hdr, sizeof(bc->hdr))) ret = -EFAULT; bsg_free_command(bc); @@ -582,6 +565,9 @@ static inline void bsg_set_write_perm(struct bsg_device *bd, struct file *file) clear_bit(BSG_F_WRITE_PERM, &bd->flags); } +/* + * Check if the error is a "real" error that we should return. + */ static inline int err_block_err(int ret) { if (ret && ret != -ENOSPC && ret != -ENODATA && ret != -EAGAIN) @@ -610,8 +596,8 @@ bsg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) return bytes_read; } -static ssize_t __bsg_write(struct bsg_device *bd, const char __user *buf, - size_t count, ssize_t *bytes_read) +static int __bsg_write(struct bsg_device *bd, const char __user *buf, + size_t count, ssize_t *bytes_written) { struct bsg_command *bc; struct request *rq; @@ -655,7 +641,7 @@ static ssize_t __bsg_write(struct bsg_device *bd, const char __user *buf, rq = NULL; nr_commands--; buf += sizeof(struct sg_io_v4); - *bytes_read += sizeof(struct sg_io_v4); + *bytes_written += sizeof(struct sg_io_v4); } if (bc) @@ -668,7 +654,7 @@ static ssize_t bsg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { struct bsg_device *bd = file->private_data; - ssize_t bytes_read; + ssize_t bytes_written; int ret; dprintk("%s: write %Zd bytes\n", bd->name, count); @@ -676,18 +662,18 @@ bsg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) bsg_set_block(bd, file); bsg_set_write_perm(bd, file); - bytes_read = 0; - ret = __bsg_write(bd, buf, count, &bytes_read); - *ppos = bytes_read; + bytes_written = 0; + ret = __bsg_write(bd, buf, count, &bytes_written); + *ppos = bytes_written; /* * return bytes written on non-fatal errors */ - if (!bytes_read || (bytes_read && err_block_err(ret))) - bytes_read = ret; + if (!bytes_written || (bytes_written && err_block_err(ret))) + bytes_written = ret; - dprintk("%s: returning %Zd\n", bd->name, bytes_read); - return bytes_read; + dprintk("%s: returning %Zd\n", bd->name, bytes_written); + return bytes_written; } static struct bsg_device *bsg_alloc_device(void) @@ -746,7 +732,7 @@ static struct bsg_device *bsg_add_device(struct inode *inode, struct request_queue *rq, struct file *file) { - struct bsg_device *bd = NULL; + struct bsg_device *bd; #ifdef BSG_DEBUG unsigned char buf[32]; #endif @@ -762,7 +748,7 @@ static struct bsg_device *bsg_add_device(struct inode *inode, atomic_set(&bd->ref_count, 1); bd->minor = iminor(inode); mutex_lock(&bsg_mutex); - hlist_add_head(&bd->dev_list, &bsg_device_list[bsg_list_idx(bd->minor)]); + hlist_add_head(&bd->dev_list, bsg_dev_idx_hash(bd->minor)); strncpy(bd->name, rq->bsg_dev.class_dev->class_id, sizeof(bd->name) - 1); dprintk("bound to <%s>, max queue %d\n", @@ -774,13 +760,12 @@ static struct bsg_device *bsg_add_device(struct inode *inode, static struct bsg_device *__bsg_get_device(int minor) { - struct hlist_head *list = &bsg_device_list[bsg_list_idx(minor)]; struct bsg_device *bd = NULL; struct hlist_node *entry; mutex_lock(&bsg_mutex); - hlist_for_each(entry, list) { + hlist_for_each(entry, bsg_dev_idx_hash(minor)) { bd = hlist_entry(entry, struct bsg_device, dev_list); if (bd->minor == minor) { atomic_inc(&bd->ref_count); @@ -858,16 +843,11 @@ static unsigned int bsg_poll(struct file *file, poll_table *wait) return mask; } -static int -bsg_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct bsg_device *bd = file->private_data; int __user *uarg = (int __user *) arg; - if (!bd) - return -ENXIO; - switch (cmd) { /* * our own ioctls @@ -944,7 +924,7 @@ static struct file_operations bsg_fops = { .poll = bsg_poll, .open = bsg_open, .release = bsg_release, - .ioctl = bsg_ioctl, + .unlocked_ioctl = bsg_ioctl, .owner = THIS_MODULE, }; @@ -952,12 +932,11 @@ void bsg_unregister_queue(struct request_queue *q) { struct bsg_class_device *bcd = &q->bsg_dev; - if (!bcd->class_dev) - return; + WARN_ON(!bcd->class_dev); mutex_lock(&bsg_mutex); sysfs_remove_link(&q->kobj, "bsg"); - class_device_destroy(bsg_class, MKDEV(BSG_MAJOR, bcd->minor)); + class_device_destroy(bsg_class, MKDEV(bsg_major, bcd->minor)); bcd->class_dev = NULL; list_del_init(&bcd->list); bsg_device_nr--; @@ -1003,7 +982,7 @@ retry: bsg_minor_idx = 0; bcd->queue = q; - dev = MKDEV(BSG_MAJOR, bcd->minor); + dev = MKDEV(bsg_major, bcd->minor); class_dev = class_device_create(bsg_class, NULL, dev, bcd->dev, "%s", name); if (IS_ERR(class_dev)) { ret = PTR_ERR(class_dev); @@ -1024,7 +1003,7 @@ retry: return 0; err: if (class_dev) - class_device_destroy(bsg_class, MKDEV(BSG_MAJOR, bcd->minor)); + class_device_destroy(bsg_class, MKDEV(bsg_major, bcd->minor)); mutex_unlock(&bsg_mutex); return ret; } @@ -1061,6 +1040,7 @@ static struct cdev bsg_cdev = { static int __init bsg_init(void) { int ret, i; + dev_t devid; bsg_cmd_cachep = kmem_cache_create("bsg_cmd", sizeof(struct bsg_command), 0, 0, NULL, NULL); @@ -1069,46 +1049,47 @@ static int __init bsg_init(void) return -ENOMEM; } - for (i = 0; i < BSG_LIST_SIZE; i++) + for (i = 0; i < BSG_LIST_ARRAY_SIZE; i++) INIT_HLIST_HEAD(&bsg_device_list[i]); bsg_class = class_create(THIS_MODULE, "bsg"); if (IS_ERR(bsg_class)) { - kmem_cache_destroy(bsg_cmd_cachep); - return PTR_ERR(bsg_class); + ret = PTR_ERR(bsg_class); + goto destroy_kmemcache; } - ret = register_chrdev_region(MKDEV(BSG_MAJOR, 0), BSG_MAX_DEVS, "bsg"); - if (ret) { - kmem_cache_destroy(bsg_cmd_cachep); - class_destroy(bsg_class); - return ret; - } + ret = alloc_chrdev_region(&devid, 0, BSG_MAX_DEVS, "bsg"); + if (ret) + goto destroy_bsg_class; + + bsg_major = MAJOR(devid); cdev_init(&bsg_cdev, &bsg_fops); - ret = cdev_add(&bsg_cdev, MKDEV(BSG_MAJOR, 0), BSG_MAX_DEVS); - if (ret) { - kmem_cache_destroy(bsg_cmd_cachep); - class_destroy(bsg_class); - unregister_chrdev_region(MKDEV(BSG_MAJOR, 0), BSG_MAX_DEVS); - return ret; - } + ret = cdev_add(&bsg_cdev, MKDEV(bsg_major, 0), BSG_MAX_DEVS); + if (ret) + goto unregister_chrdev; ret = scsi_register_interface(&bsg_intf); - if (ret) { - printk(KERN_ERR "bsg: failed register scsi interface %d\n", ret); - kmem_cache_destroy(bsg_cmd_cachep); - class_destroy(bsg_class); - unregister_chrdev(BSG_MAJOR, "bsg"); - return ret; - } + if (ret) + goto remove_cdev; - printk(KERN_INFO "%s loaded\n", bsg_version); + printk(KERN_INFO BSG_DESCRIPTION " version " BSG_VERSION + " loaded (major %d)\n", bsg_major); return 0; +remove_cdev: + printk(KERN_ERR "bsg: failed register scsi interface %d\n", ret); + cdev_del(&bsg_cdev); +unregister_chrdev: + unregister_chrdev_region(MKDEV(bsg_major, 0), BSG_MAX_DEVS); +destroy_bsg_class: + class_destroy(bsg_class); +destroy_kmemcache: + kmem_cache_destroy(bsg_cmd_cachep); + return ret; } MODULE_AUTHOR("Jens Axboe"); -MODULE_DESCRIPTION("Block layer SGSI generic (sg) driver"); +MODULE_DESCRIPTION(BSG_DESCRIPTION); MODULE_LICENSE("GPL"); device_initcall(bsg_init); diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index e0aa4dad6742..9755a3cfad26 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1251,9 +1251,9 @@ cfq_alloc_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) { struct cfq_io_context *cic; - cic = kmem_cache_alloc_node(cfq_ioc_pool, gfp_mask, cfqd->queue->node); + cic = kmem_cache_alloc_node(cfq_ioc_pool, gfp_mask | __GFP_ZERO, + cfqd->queue->node); if (cic) { - memset(cic, 0, sizeof(*cic)); cic->last_end_request = jiffies; INIT_LIST_HEAD(&cic->queue_list); cic->dtor = cfq_free_io_context; @@ -1376,17 +1376,19 @@ retry: * free memory. */ spin_unlock_irq(cfqd->queue->queue_lock); - new_cfqq = kmem_cache_alloc_node(cfq_pool, gfp_mask|__GFP_NOFAIL, cfqd->queue->node); + new_cfqq = kmem_cache_alloc_node(cfq_pool, + gfp_mask | __GFP_NOFAIL | __GFP_ZERO, + cfqd->queue->node); spin_lock_irq(cfqd->queue->queue_lock); goto retry; } else { - cfqq = kmem_cache_alloc_node(cfq_pool, gfp_mask, cfqd->queue->node); + cfqq = kmem_cache_alloc_node(cfq_pool, + gfp_mask | __GFP_ZERO, + cfqd->queue->node); if (!cfqq) goto out; } - memset(cfqq, 0, sizeof(*cfqq)); - RB_CLEAR_NODE(&cfqq->rb_node); INIT_LIST_HEAD(&cfqq->fifo); @@ -2079,12 +2081,10 @@ static void *cfq_init_queue(request_queue_t *q) { struct cfq_data *cfqd; - cfqd = kmalloc_node(sizeof(*cfqd), GFP_KERNEL, q->node); + cfqd = kmalloc_node(sizeof(*cfqd), GFP_KERNEL | __GFP_ZERO, q->node); if (!cfqd) return NULL; - memset(cfqd, 0, sizeof(*cfqd)); - cfqd->service_tree = CFQ_RB_ROOT; INIT_LIST_HEAD(&cfqd->cic_list); diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index 6d673e938d3e..87ca02ac84cb 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -360,10 +360,9 @@ static void *deadline_init_queue(request_queue_t *q) { struct deadline_data *dd; - dd = kmalloc_node(sizeof(*dd), GFP_KERNEL, q->node); + dd = kmalloc_node(sizeof(*dd), GFP_KERNEL | __GFP_ZERO, q->node); if (!dd) return NULL; - memset(dd, 0, sizeof(*dd)); INIT_LIST_HEAD(&dd->fifo_list[READ]); INIT_LIST_HEAD(&dd->fifo_list[WRITE]); diff --git a/block/elevator.c b/block/elevator.c index 4769a25d7037..d265963d1ed3 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -177,11 +177,10 @@ static elevator_t *elevator_alloc(request_queue_t *q, struct elevator_type *e) elevator_t *eq; int i; - eq = kmalloc_node(sizeof(elevator_t), GFP_KERNEL, q->node); + eq = kmalloc_node(sizeof(elevator_t), GFP_KERNEL | __GFP_ZERO, q->node); if (unlikely(!eq)) goto err; - memset(eq, 0, sizeof(*eq)); eq->ops = &e->ops; eq->elevator_type = e; kobject_init(&eq->kobj); diff --git a/block/genhd.c b/block/genhd.c index 863a8c0623ed..3af1e7a378d4 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -108,28 +108,24 @@ out: EXPORT_SYMBOL(register_blkdev); -/* todo: make void - error printk here */ -int unregister_blkdev(unsigned int major, const char *name) +void unregister_blkdev(unsigned int major, const char *name) { struct blk_major_name **n; struct blk_major_name *p = NULL; int index = major_to_index(major); - int ret = 0; mutex_lock(&block_subsys_lock); for (n = &major_names[index]; *n; n = &(*n)->next) if ((*n)->major == major) break; - if (!*n || strcmp((*n)->name, name)) - ret = -EINVAL; - else { + if (!*n || strcmp((*n)->name, name)) { + WARN_ON(1); + } else { p = *n; *n = p->next; } mutex_unlock(&block_subsys_lock); kfree(p); - - return ret; } EXPORT_SYMBOL(unregister_blkdev); @@ -726,21 +722,21 @@ struct gendisk *alloc_disk_node(int minors, int node_id) { struct gendisk *disk; - disk = kmalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id); + disk = kmalloc_node(sizeof(struct gendisk), + GFP_KERNEL | __GFP_ZERO, node_id); if (disk) { - memset(disk, 0, sizeof(struct gendisk)); if (!init_disk_stats(disk)) { kfree(disk); return NULL; } if (minors > 1) { int size = (minors - 1) * sizeof(struct hd_struct *); - disk->part = kmalloc_node(size, GFP_KERNEL, node_id); + disk->part = kmalloc_node(size, + GFP_KERNEL | __GFP_ZERO, node_id); if (!disk->part) { kfree(disk); return NULL; } - memset(disk->part, 0, size); } disk->minors = minors; kobj_set_kset_s(disk,block_subsys); diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 11e4235d0b0c..d7cadf304168 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -1829,11 +1829,11 @@ request_queue_t *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) { request_queue_t *q; - q = kmem_cache_alloc_node(requestq_cachep, gfp_mask, node_id); + q = kmem_cache_alloc_node(requestq_cachep, + gfp_mask | __GFP_ZERO, node_id); if (!q) return NULL; - memset(q, 0, sizeof(*q)); init_timer(&q->unplug_timer); snprintf(q->kobj.name, KOBJ_NAME_LEN, "%s", "queue"); diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index a26ba07955fe..71bdf88884b2 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -436,11 +436,10 @@ int sg_scsi_ioctl(struct file *file, struct request_queue *q, bytes = max(in_len, out_len); if (bytes) { - buffer = kmalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN); + buffer = kzalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN); if (!buffer) return -ENOMEM; - memset(buffer, 0, bytes); } rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_WAIT); diff --git a/drivers/Kconfig b/drivers/Kconfig index 7916f4b86d23..707650ab77a7 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -84,4 +84,7 @@ source "drivers/auxdisplay/Kconfig" source "drivers/kvm/Kconfig" +source "drivers/uio/Kconfig" + +source "drivers/lguest/Kconfig" endmenu diff --git a/drivers/Makefile b/drivers/Makefile index 503d82569449..0ea8e3237c0d 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -15,6 +15,8 @@ obj-$(CONFIG_ACPI) += acpi/ obj-$(CONFIG_PNP) += pnp/ obj-$(CONFIG_ARM_AMBA) += amba/ +obj-$(CONFIG_XEN) += xen/ + # char/ comes before serial/ etc so that the VT console is the boot-time # default. obj-y += char/ @@ -38,6 +40,7 @@ obj-$(CONFIG_ATA) += ata/ obj-$(CONFIG_FUSION) += message/ obj-$(CONFIG_FIREWIRE) += firewire/ obj-$(CONFIG_IEEE1394) += ieee1394/ +obj-$(CONFIG_UIO) += uio/ obj-y += cdrom/ obj-y += auxdisplay/ obj-$(CONFIG_MTD) += mtd/ @@ -70,6 +73,7 @@ obj-$(CONFIG_ISDN) += isdn/ obj-$(CONFIG_EDAC) += edac/ obj-$(CONFIG_MCA) += mca/ obj-$(CONFIG_EISA) += eisa/ +obj-$(CONFIG_LGUEST_GUEST) += lguest/ obj-$(CONFIG_CPU_FREQ) += cpufreq/ obj-$(CONFIG_MMC) += mmc/ obj-$(CONFIG_NEW_LEDS) += leds/ diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index bc7e16ec8393..42127c0d612c 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -217,10 +217,26 @@ static void acpi_hibernation_finish(void) } } +static int acpi_hibernation_pre_restore(void) +{ + acpi_status status; + + status = acpi_hw_disable_all_gpes(); + + return ACPI_SUCCESS(status) ? 0 : -EFAULT; +} + +static void acpi_hibernation_restore_cleanup(void) +{ + acpi_hw_enable_all_runtime_gpes(); +} + static struct hibernation_ops acpi_hibernation_ops = { .prepare = acpi_hibernation_prepare, .enter = acpi_hibernation_enter, .finish = acpi_hibernation_finish, + .pre_restore = acpi_hibernation_pre_restore, + .restore_cleanup = acpi_hibernation_restore_cleanup, }; #endif /* CONFIG_SOFTWARE_SUSPEND */ diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c index d9801eff6489..39e40d56b034 100644 --- a/drivers/acpi/sleep/poweroff.c +++ b/drivers/acpi/sleep/poweroff.c @@ -39,7 +39,13 @@ int acpi_sleep_prepare(u32 acpi_state) #ifdef CONFIG_PM -void acpi_power_off(void) +static void acpi_power_off_prepare(void) +{ + /* Prepare to power off the system */ + acpi_sleep_prepare(ACPI_STATE_S5); +} + +static void acpi_power_off(void) { /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */ printk("%s called\n", __FUNCTION__); @@ -48,30 +54,6 @@ void acpi_power_off(void) acpi_enter_sleep_state(ACPI_STATE_S5); } -static int acpi_shutdown(struct sys_device *x) -{ - switch (system_state) { - case SYSTEM_POWER_OFF: - /* Prepare to power off the system */ - return acpi_sleep_prepare(ACPI_STATE_S5); - case SYSTEM_SUSPEND_DISK: - /* Prepare to suspend the system to disk */ - return acpi_sleep_prepare(ACPI_STATE_S4); - default: - return 0; - } -} - -static struct sysdev_class acpi_sysclass = { - set_kset_name("acpi"), - .shutdown = acpi_shutdown -}; - -static struct sys_device device_acpi = { - .id = 0, - .cls = &acpi_sysclass, -}; - static int acpi_poweroff_init(void) { if (!acpi_disabled) { @@ -81,13 +63,8 @@ static int acpi_poweroff_init(void) status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); if (ACPI_SUCCESS(status)) { - int error; - error = sysdev_class_register(&acpi_sysclass); - if (!error) - error = sysdev_register(&device_acpi); - if (!error) - pm_power_off = acpi_power_off; - return error; + pm_power_off_prepare = acpi_power_off_prepare; + pm_power_off = acpi_power_off; } } return 0; diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 88a6fc7fd271..58f1338981bc 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -40,6 +40,7 @@ #include <linux/jiffies.h> #include <linux/kmod.h> #include <linux/seq_file.h> +#include <linux/reboot.h> #include <asm/uaccess.h> #include <acpi/acpi_bus.h> @@ -59,7 +60,6 @@ #define ACPI_THERMAL_NOTIFY_CRITICAL 0xF0 #define ACPI_THERMAL_NOTIFY_HOT 0xF1 #define ACPI_THERMAL_MODE_ACTIVE 0x00 -#define ACPI_THERMAL_PATH_POWEROFF "/sbin/poweroff" #define ACPI_THERMAL_MAX_ACTIVE 10 #define ACPI_THERMAL_MAX_LIMIT_STR_LEN 65 @@ -419,26 +419,6 @@ static int acpi_thermal_get_devices(struct acpi_thermal *tz) return 0; } -static int acpi_thermal_call_usermode(char *path) -{ - char *argv[2] = { NULL, NULL }; - char *envp[3] = { NULL, NULL, NULL }; - - - if (!path) - return -EINVAL; - - argv[0] = path; - - /* minimal command environment */ - envp[0] = "HOME=/"; - envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; - - call_usermodehelper(argv[0], argv, envp, 0); - - return 0; -} - static int acpi_thermal_critical(struct acpi_thermal *tz) { if (!tz || !tz->trips.critical.flags.valid) @@ -456,7 +436,7 @@ static int acpi_thermal_critical(struct acpi_thermal *tz) acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL, tz->trips.critical.flags.enabled); - acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF); + orderly_poweroff(true); return 0; } diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 5d576435fccc..fb8a749423ca 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -2666,7 +2666,7 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) mv_print_info(host); pci_set_master(pdev); - pci_set_mwi(pdev); + pci_try_set_mwi(pdev); return ata_host_activate(host, pdev->irq, mv_interrupt, IRQF_SHARED, IS_GEN_I(hpriv) ? &mv5_sht : &mv6_sht); } diff --git a/drivers/atm/Kconfig b/drivers/atm/Kconfig index bb4ae6281491..bed9f58c2d5a 100644 --- a/drivers/atm/Kconfig +++ b/drivers/atm/Kconfig @@ -172,7 +172,7 @@ config ATM_ZATM_DEBUG config ATM_NICSTAR tristate "IDT 77201 (NICStAR) (ForeRunnerLE)" - depends on PCI && !64BIT + depends on PCI && !64BIT && VIRT_TO_BUS help The NICStAR chipset family is used in a large number of ATM NICs for 25 and for 155 Mbps, including IDT cards and the Fore ForeRunnerLE diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c index 59651abfa4f8..b34b3829f6a9 100644 --- a/drivers/atm/ambassador.c +++ b/drivers/atm/ambassador.c @@ -1040,7 +1040,7 @@ static int amb_open (struct atm_vcc * atm_vcc) struct atm_qos * qos; struct atm_trafprm * txtp; struct atm_trafprm * rxtp; - u16 tx_rate_bits; + u16 tx_rate_bits = -1; // hush gcc u16 tx_vc_bits = -1; // hush gcc u16 tx_frame_bits = -1; // hush gcc @@ -1096,6 +1096,8 @@ static int amb_open (struct atm_vcc * atm_vcc) r = round_up; } error = make_rate (pcr, r, &tx_rate_bits, NULL); + if (error) + return error; tx_vc_bits = TX_UBR_CAPPED; tx_frame_bits = TX_FRAME_CAPPED; } diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c index 77637e780d41..41b2204ebc6e 100644 --- a/drivers/atm/eni.c +++ b/drivers/atm/eni.c @@ -1738,7 +1738,8 @@ static int __devinit eni_do_init(struct atm_dev *dev) printk(KERN_ERR KERN_ERR DEV_LABEL "(itf %d): bad " "magic - expected 0x%x, got 0x%x\n",dev->number, ENI155_MAGIC,(unsigned) readl(&eprom->magic)); - return -EINVAL; + error = -EINVAL; + goto unmap; } } eni_dev->phy = base+PHY_BASE; @@ -1765,17 +1766,27 @@ static int __devinit eni_do_init(struct atm_dev *dev) printk(")\n"); printk(KERN_ERR DEV_LABEL "(itf %d): ERROR - wrong id 0x%x\n", dev->number,(unsigned) eni_in(MID_RES_ID_MCON)); - return -EINVAL; + error = -EINVAL; + goto unmap; } error = eni_dev->asic ? get_esi_asic(dev) : get_esi_fpga(dev,base); - if (error) return error; + if (error) + goto unmap; for (i = 0; i < ESI_LEN; i++) printk("%s%02X",i ? "-" : "",dev->esi[i]); printk(")\n"); printk(KERN_NOTICE DEV_LABEL "(itf %d): %s,%s\n",dev->number, eni_in(MID_RES_ID_MCON) & 0x200 ? "ASIC" : "FPGA", media_name[eni_in(MID_RES_ID_MCON) & DAUGTHER_ID]); - return suni_init(dev); + + error = suni_init(dev); + if (error) + goto unmap; +out: + return error; +unmap: + iounmap(base); + goto out; } diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c index 38b688f9f6a9..737cea49f872 100644 --- a/drivers/atm/firestream.c +++ b/drivers/atm/firestream.c @@ -1710,7 +1710,7 @@ static int __devinit fs_init (struct fs_dev *dev) /* This bit is documented as "RESERVED" */ if (isr & ISR_INIT_ERR) { printk (KERN_ERR "Error initializing the FS... \n"); - return 1; + goto unmap; } if (isr & ISR_INIT) { fs_dprintk (FS_DEBUG_INIT, "Ha! Initialized OK!\n"); @@ -1723,7 +1723,7 @@ static int __devinit fs_init (struct fs_dev *dev) if (!to) { printk (KERN_ERR "timeout initializing the FS... \n"); - return 1; + goto unmap; } /* XXX fix for fs155 */ @@ -1803,7 +1803,7 @@ static int __devinit fs_init (struct fs_dev *dev) if (!dev->atm_vccs) { printk (KERN_WARNING "Couldn't allocate memory for VCC buffers. Woops!\n"); /* XXX Clean up..... */ - return 1; + goto unmap; } dev->tx_inuse = kzalloc (dev->nchannels / 8 /* bits/byte */ , GFP_KERNEL); @@ -1813,7 +1813,7 @@ static int __devinit fs_init (struct fs_dev *dev) if (!dev->tx_inuse) { printk (KERN_WARNING "Couldn't allocate memory for tx_inuse bits!\n"); /* XXX Clean up..... */ - return 1; + goto unmap; } /* -- RAS1 : FS155 and 50 differ. Default (0) should be OK for both */ /* -- RAS2 : FS50 only: Default is OK. */ @@ -1840,7 +1840,7 @@ static int __devinit fs_init (struct fs_dev *dev) if (request_irq (dev->irq, fs_irq, IRQF_SHARED, "firestream", dev)) { printk (KERN_WARNING "couldn't get irq %d for firestream.\n", pci_dev->irq); /* XXX undo all previous stuff... */ - return 1; + goto unmap; } fs_dprintk (FS_DEBUG_INIT, "Grabbed irq %d for dev at %p.\n", dev->irq, dev); @@ -1890,6 +1890,9 @@ static int __devinit fs_init (struct fs_dev *dev) func_exit (); return 0; +unmap: + iounmap(dev->base); + return 1; } static int __devinit firestream_init_one (struct pci_dev *pci_dev, @@ -2012,6 +2015,7 @@ static void __devexit firestream_remove_one (struct pci_dev *pdev) for (i=0;i < FS_NR_RX_QUEUES;i++) free_queue (dev, &dev->rx_rq[i]); + iounmap(dev->base); fs_dprintk (FS_DEBUG_ALLOC, "Free fs-dev: %p\n", dev); nxtdev = dev->next; kfree (dev); diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c index 8f995ce8d73b..f8b1700f4c16 100644 --- a/drivers/atm/idt77252.c +++ b/drivers/atm/idt77252.c @@ -65,7 +65,7 @@ static char const rcsid[] = static unsigned int vpibits = 1; -#define CONFIG_ATM_IDT77252_SEND_IDLE 1 +#define ATM_IDT77252_SEND_IDLE 1 /* @@ -3404,7 +3404,7 @@ init_card(struct atm_dev *dev) conf = SAR_CFG_TX_FIFO_SIZE_9 | /* Use maximum fifo size */ SAR_CFG_RXSTQ_SIZE_8k | /* Receive Status Queue is 8k */ SAR_CFG_IDLE_CLP | /* Set CLP on idle cells */ -#ifndef CONFIG_ATM_IDT77252_SEND_IDLE +#ifndef ATM_IDT77252_SEND_IDLE SAR_CFG_NO_IDLE | /* Do not send idle cells */ #endif 0; @@ -3541,7 +3541,7 @@ init_card(struct atm_dev *dev) printk("%s: Linkrate on ATM line : %u bit/s, %u cell/s.\n", card->name, linkrate, card->link_pcr); -#ifdef CONFIG_ATM_IDT77252_SEND_IDLE +#ifdef ATM_IDT77252_SEND_IDLE card->utopia_pcr = card->link_pcr; #else card->utopia_pcr = (160000000 / 8 / 54); diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c index 0e2c1ae650e7..55fd1b4543fd 100644 --- a/drivers/atm/lanai.c +++ b/drivers/atm/lanai.c @@ -552,8 +552,8 @@ static inline void sram_write(const struct lanai_dev *lanai, writel(val, sram_addr(lanai, offset)); } -static int __init sram_test_word( - const struct lanai_dev *lanai, int offset, u32 pattern) +static int __devinit sram_test_word(const struct lanai_dev *lanai, + int offset, u32 pattern) { u32 readback; sram_write(lanai, pattern, offset); diff --git a/drivers/atm/nicstarmac.c b/drivers/atm/nicstarmac.c index 480947f4e01e..842e26c45557 100644 --- a/drivers/atm/nicstarmac.c +++ b/drivers/atm/nicstarmac.c @@ -134,7 +134,7 @@ nicstar_read_eprom_status( virt_addr_t base ) /* Send read instruction */ val = NICSTAR_REG_READ( base, NICSTAR_REG_GENERAL_PURPOSE ) & 0xFFFFFFF0; - for (i=0; i<sizeof rdsrtab/sizeof rdsrtab[0]; i++) + for (i=0; i<ARRAY_SIZE(rdsrtab); i++) { NICSTAR_REG_WRITE( base, NICSTAR_REG_GENERAL_PURPOSE, (val | rdsrtab[i]) ); diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c index 020a87a476c8..58583c6ac5be 100644 --- a/drivers/atm/zatm.c +++ b/drivers/atm/zatm.c @@ -915,7 +915,7 @@ static int open_tx_first(struct atm_vcc *vcc) unsigned long flags; u32 *loop; unsigned short chan; - int pcr,unlimited; + int unlimited; DPRINTK("open_tx_first\n"); zatm_dev = ZATM_DEV(vcc->dev); @@ -936,6 +936,8 @@ static int open_tx_first(struct atm_vcc *vcc) vcc->qos.txtp.max_pcr >= ATM_OC3_PCR); if (unlimited && zatm_dev->ubr != -1) zatm_vcc->shaper = zatm_dev->ubr; else { + int uninitialized_var(pcr); + if (unlimited) vcc->qos.txtp.max_sdu = ATM_MAX_AAL5_PDU; if ((zatm_vcc->shaper = alloc_shaper(vcc->dev,&pcr, vcc->qos.txtp.min_pcr,vcc->qos.txtp.max_pcr,unlimited)) diff --git a/drivers/base/core.c b/drivers/base/core.c index 0455aa78fa13..3599ab2506d2 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -24,6 +24,8 @@ #include "base.h" #include "power/power.h" +extern const char *kobject_actions[]; + int (*platform_notify)(struct device * dev) = NULL; int (*platform_notify_remove)(struct device * dev) = NULL; @@ -303,10 +305,25 @@ out: static ssize_t store_uevent(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - if (memcmp(buf, "add", 3) != 0) - dev_err(dev, "uevent: unsupported action-string; this will " - "be ignored in a future kernel version"); + size_t len = count; + enum kobject_action action; + + if (len && buf[len-1] == '\n') + len--; + + for (action = 0; action < KOBJ_MAX; action++) { + if (strncmp(kobject_actions[action], buf, len) != 0) + continue; + if (kobject_actions[action][len] != '\0') + continue; + kobject_uevent(&dev->kobj, action); + goto out; + } + + dev_err(dev, "uevent: unsupported action-string; this will " + "be ignored in a future kernel version\n"); kobject_uevent(&dev->kobj, KOBJ_ADD); +out: return count; } @@ -643,6 +660,82 @@ static int setup_parent(struct device *dev, struct device *parent) return 0; } +static int device_add_class_symlinks(struct device *dev) +{ + int error; + + if (!dev->class) + return 0; + error = sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj, + "subsystem"); + if (error) + goto out; + /* + * If this is not a "fake" compatible device, then create the + * symlink from the class to the device. + */ + if (dev->kobj.parent != &dev->class->subsys.kobj) { + error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, + dev->bus_id); + if (error) + goto out_subsys; + } + /* only bus-device parents get a "device"-link */ + if (dev->parent && dev->parent->bus) { + error = sysfs_create_link(&dev->kobj, &dev->parent->kobj, + "device"); + if (error) + goto out_busid; +#ifdef CONFIG_SYSFS_DEPRECATED + { + char * class_name = make_class_name(dev->class->name, + &dev->kobj); + if (class_name) + error = sysfs_create_link(&dev->parent->kobj, + &dev->kobj, class_name); + kfree(class_name); + if (error) + goto out_device; + } +#endif + } + return 0; + +#ifdef CONFIG_SYSFS_DEPRECATED +out_device: + if (dev->parent) + sysfs_remove_link(&dev->kobj, "device"); +#endif +out_busid: + if (dev->kobj.parent != &dev->class->subsys.kobj) + sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); +out_subsys: + sysfs_remove_link(&dev->kobj, "subsystem"); +out: + return error; +} + +static void device_remove_class_symlinks(struct device *dev) +{ + if (!dev->class) + return; + if (dev->parent) { +#ifdef CONFIG_SYSFS_DEPRECATED + char *class_name; + + class_name = make_class_name(dev->class->name, &dev->kobj); + if (class_name) { + sysfs_remove_link(&dev->parent->kobj, class_name); + kfree(class_name); + } +#endif + sysfs_remove_link(&dev->kobj, "device"); + } + if (dev->kobj.parent != &dev->class->subsys.kobj) + sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->kobj, "subsystem"); +} + /** * device_add - add device to device hierarchy. * @dev: device. @@ -657,7 +750,6 @@ static int setup_parent(struct device *dev, struct device *parent) int device_add(struct device *dev) { struct device *parent = NULL; - char *class_name = NULL; struct class_interface *class_intf; int error = -EINVAL; @@ -697,27 +789,9 @@ int device_add(struct device *dev) goto ueventattrError; } - if (dev->class) { - sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj, - "subsystem"); - /* If this is not a "fake" compatible device, then create the - * symlink from the class to the device. */ - if (dev->kobj.parent != &dev->class->subsys.kobj) - sysfs_create_link(&dev->class->subsys.kobj, - &dev->kobj, dev->bus_id); - if (parent) { - sysfs_create_link(&dev->kobj, &dev->parent->kobj, - "device"); -#ifdef CONFIG_SYSFS_DEPRECATED - class_name = make_class_name(dev->class->name, - &dev->kobj); - if (class_name) - sysfs_create_link(&dev->parent->kobj, - &dev->kobj, class_name); -#endif - } - } - + error = device_add_class_symlinks(dev); + if (error) + goto SymlinkError; error = device_add_attrs(dev); if (error) goto AttrsError; @@ -744,7 +818,6 @@ int device_add(struct device *dev) up(&dev->class->sem); } Done: - kfree(class_name); put_device(dev); return error; BusError: @@ -755,6 +828,8 @@ int device_add(struct device *dev) BUS_NOTIFY_DEL_DEVICE, dev); device_remove_attrs(dev); AttrsError: + device_remove_class_symlinks(dev); + SymlinkError: if (MAJOR(dev->devt)) device_remove_file(dev, &devt_attr); @@ -1139,7 +1214,7 @@ int device_rename(struct device *dev, char *new_name) { char *old_class_name = NULL; char *new_class_name = NULL; - char *old_symlink_name = NULL; + char *old_device_name = NULL; int error; dev = get_device(dev); @@ -1153,42 +1228,49 @@ int device_rename(struct device *dev, char *new_name) old_class_name = make_class_name(dev->class->name, &dev->kobj); #endif - if (dev->class) { - old_symlink_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL); - if (!old_symlink_name) { - error = -ENOMEM; - goto out_free_old_class; - } - strlcpy(old_symlink_name, dev->bus_id, BUS_ID_SIZE); + old_device_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL); + if (!old_device_name) { + error = -ENOMEM; + goto out; } - + strlcpy(old_device_name, dev->bus_id, BUS_ID_SIZE); strlcpy(dev->bus_id, new_name, BUS_ID_SIZE); error = kobject_rename(&dev->kobj, new_name); + if (error) { + strlcpy(dev->bus_id, old_device_name, BUS_ID_SIZE); + goto out; + } #ifdef CONFIG_SYSFS_DEPRECATED if (old_class_name) { new_class_name = make_class_name(dev->class->name, &dev->kobj); if (new_class_name) { - sysfs_create_link(&dev->parent->kobj, &dev->kobj, - new_class_name); + error = sysfs_create_link(&dev->parent->kobj, + &dev->kobj, new_class_name); + if (error) + goto out; sysfs_remove_link(&dev->parent->kobj, old_class_name); } } #endif if (dev->class) { - sysfs_remove_link(&dev->class->subsys.kobj, - old_symlink_name); - sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + sysfs_remove_link(&dev->class->subsys.kobj, old_device_name); + error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, + dev->bus_id); + if (error) { + /* Uh... how to unravel this if restoring can fail? */ + dev_err(dev, "%s: sysfs_create_symlink failed (%d)\n", + __FUNCTION__, error); + } } +out: put_device(dev); kfree(new_class_name); - kfree(old_symlink_name); - out_free_old_class: kfree(old_class_name); + kfree(old_device_name); return error; } diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile index 91f230939c1e..966a5e287415 100644 --- a/drivers/base/power/Makefile +++ b/drivers/base/power/Makefile @@ -1,10 +1,10 @@ obj-y := shutdown.o -obj-$(CONFIG_PM) += main.o suspend.o resume.o runtime.o sysfs.o +obj-$(CONFIG_PM) += main.o suspend.o resume.o sysfs.o obj-$(CONFIG_PM_TRACE) += trace.o ifeq ($(CONFIG_DEBUG_DRIVER),y) EXTRA_CFLAGS += -DDEBUG endif -ifeq ($(CONFIG_PM_DEBUG),y) +ifeq ($(CONFIG_PM_VERBOSE),y) EXTRA_CFLAGS += -DDEBUG endif diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h index 2760f25b3ac5..591a0dd5deee 100644 --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -62,11 +62,6 @@ extern int resume_device(struct device *); */ extern int suspend_device(struct device *, pm_message_t); - -/* - * runtime.c - */ - #else /* CONFIG_PM */ diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c deleted file mode 100644 index df6174d85866..000000000000 --- a/drivers/base/power/runtime.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * drivers/base/power/runtime.c - Handling dynamic device power management. - * - * Copyright (c) 2003 Patrick Mochel - * Copyright (c) 2003 Open Source Development Lab - * - */ - -#include <linux/device.h> -#include "power.h" - - -static void runtime_resume(struct device * dev) -{ - dev_dbg(dev, "resuming\n"); - if (!dev->power.power_state.event) - return; - if (!resume_device(dev)) - dev->power.power_state = PMSG_ON; -} - - -/** - * dpm_runtime_resume - Power one device back on. - * @dev: Device. - * - * Bring one device back to the on state by first powering it - * on, then restoring state. We only operate on devices that aren't - * already on. - * FIXME: We need to handle devices that are in an unknown state. - */ - -void dpm_runtime_resume(struct device * dev) -{ - mutex_lock(&dpm_mtx); - runtime_resume(dev); - mutex_unlock(&dpm_mtx); -} -EXPORT_SYMBOL(dpm_runtime_resume); - - -/** - * dpm_runtime_suspend - Put one device in low-power state. - * @dev: Device. - * @state: State to enter. - */ - -int dpm_runtime_suspend(struct device * dev, pm_message_t state) -{ - int error = 0; - - mutex_lock(&dpm_mtx); - if (dev->power.power_state.event == state.event) - goto Done; - - if (dev->power.power_state.event) - runtime_resume(dev); - - if (!(error = suspend_device(dev, state))) - dev->power.power_state = state; - Done: - mutex_unlock(&dpm_mtx); - return error; -} -EXPORT_SYMBOL(dpm_runtime_suspend); - - -#if 0 -/** - * dpm_set_power_state - Update power_state field. - * @dev: Device. - * @state: Power state device is in. - * - * This is an update mechanism for drivers to notify the core - * what power state a device is in. Device probing code may not - * always be able to tell, but we need accurate information to - * work reliably. - */ -void dpm_set_power_state(struct device * dev, pm_message_t state) -{ - mutex_lock(&dpm_mtx); - dev->power.power_state = state; - mutex_unlock(&dpm_mtx); -} -#endif /* 0 */ diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 2d47517dbe32..f2ed179cd695 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -7,69 +7,6 @@ #include "power.h" -#ifdef CONFIG_PM_SYSFS_DEPRECATED - -/** - * state - Control current power state of device - * - * show() returns the current power state of the device. '0' indicates - * the device is on. Other values (2) indicate the device is in some low - * power state. - * - * store() sets the current power state, which is an integer valued - * 0, 2, or 3. Devices with bus.suspend_late(), or bus.resume_early() - * methods fail this operation; those methods couldn't be called. - * Otherwise, - * - * - If the recorded dev->power.power_state.event matches the - * target value, nothing is done. - * - If the recorded event code is nonzero, the device is reactivated - * by calling bus.resume() and/or class.resume(). - * - If the target value is nonzero, the device is suspended by - * calling class.suspend() and/or bus.suspend() with event code - * PM_EVENT_SUSPEND. - * - * This mechanism is DEPRECATED and should only be used for testing. - */ - -static ssize_t state_show(struct device * dev, struct device_attribute *attr, char * buf) -{ - if (dev->power.power_state.event) - return sprintf(buf, "2\n"); - else - return sprintf(buf, "0\n"); -} - -static ssize_t state_store(struct device * dev, struct device_attribute *attr, const char * buf, size_t n) -{ - pm_message_t state; - int error = -EINVAL; - - /* disallow incomplete suspend sequences */ - if (dev->bus && (dev->bus->suspend_late || dev->bus->resume_early)) - return error; - - state.event = PM_EVENT_SUSPEND; - /* Older apps expected to write "3" here - confused with PCI D3 */ - if ((n == 1) && !strcmp(buf, "3")) - error = dpm_runtime_suspend(dev, state); - - if ((n == 1) && !strcmp(buf, "2")) - error = dpm_runtime_suspend(dev, state); - - if ((n == 1) && !strcmp(buf, "0")) { - dpm_runtime_resume(dev); - error = 0; - } - - return error ? error : n; -} - -static DEVICE_ATTR(state, 0644, state_show, state_store); - - -#endif /* CONFIG_PM_SYSFS_DEPRECATED */ - /* * wakeup - Report/change current wakeup option for device * @@ -143,9 +80,6 @@ static DEVICE_ATTR(wakeup, 0644, wake_show, wake_store); static struct attribute * power_attrs[] = { -#ifdef CONFIG_PM_SYSFS_DEPRECATED - &dev_attr_state.attr, -#endif &dev_attr_wakeup.attr, NULL, }; diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index c5a61571a076..a4a311992408 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -421,4 +421,19 @@ config SUNVDC source "drivers/s390/block/Kconfig" +config XILINX_SYSACE + tristate "Xilinx SystemACE support" + depends on 4xx + help + Include support for the Xilinx SystemACE CompactFlash interface + +config XEN_BLKDEV_FRONTEND + tristate "Xen virtual block device support" + depends on XEN + default y + help + This driver implements the front-end of the Xen virtual + block device driver. It communicates with a back-end driver + in another domain which drives the actual block device. + endif # BLK_DEV diff --git a/drivers/block/Makefile b/drivers/block/Makefile index 7926be8c9fb7..819c829125fb 100644 --- a/drivers/block/Makefile +++ b/drivers/block/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_BLK_DEV_XD) += xd.o obj-$(CONFIG_BLK_CPQ_DA) += cpqarray.o obj-$(CONFIG_BLK_CPQ_CISS_DA) += cciss.o obj-$(CONFIG_BLK_DEV_DAC960) += DAC960.o +obj-$(CONFIG_XILINX_SYSACE) += xsysace.o obj-$(CONFIG_CDROM_PKTCDVD) += pktcdvd.o obj-$(CONFIG_SUNVDC) += sunvdc.o @@ -28,3 +29,5 @@ obj-$(CONFIG_VIODASD) += viodasd.o obj-$(CONFIG_BLK_DEV_SX8) += sx8.o obj-$(CONFIG_BLK_DEV_UB) += ub.o +obj-$(CONFIG_XEN_BLKDEV_FRONTEND) += xen-blkfront.o +obj-$(CONFIG_LGUEST_GUEST) += lguest_blk.o diff --git a/drivers/block/lguest_blk.c b/drivers/block/lguest_blk.c new file mode 100644 index 000000000000..1634c2dd25ec --- /dev/null +++ b/drivers/block/lguest_blk.c @@ -0,0 +1,275 @@ +/* A simple block driver for lguest. + * + * Copyright 2006 Rusty Russell <rusty@rustcorp.com.au> IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +//#define DEBUG +#include <linux/init.h> +#include <linux/types.h> +#include <linux/blkdev.h> +#include <linux/interrupt.h> +#include <linux/lguest_bus.h> + +static char next_block_index = 'a'; + +struct blockdev +{ + spinlock_t lock; + + /* The disk structure for the kernel. */ + struct gendisk *disk; + + /* The major number for this disk. */ + int major; + int irq; + + unsigned long phys_addr; + /* The mapped block page. */ + struct lguest_block_page *lb_page; + + /* We only have a single request outstanding at a time. */ + struct lguest_dma dma; + struct request *req; +}; + +/* Jens gave me this nice helper to end all chunks of a request. */ +static void end_entire_request(struct request *req, int uptodate) +{ + if (end_that_request_first(req, uptodate, req->hard_nr_sectors)) + BUG(); + add_disk_randomness(req->rq_disk); + blkdev_dequeue_request(req); + end_that_request_last(req, uptodate); +} + +static irqreturn_t lgb_irq(int irq, void *_bd) +{ + struct blockdev *bd = _bd; + unsigned long flags; + + if (!bd->req) { + pr_debug("No work!\n"); + return IRQ_NONE; + } + + if (!bd->lb_page->result) { + pr_debug("No result!\n"); + return IRQ_NONE; + } + + spin_lock_irqsave(&bd->lock, flags); + end_entire_request(bd->req, bd->lb_page->result == 1); + bd->req = NULL; + bd->dma.used_len = 0; + blk_start_queue(bd->disk->queue); + spin_unlock_irqrestore(&bd->lock, flags); + return IRQ_HANDLED; +} + +static unsigned int req_to_dma(struct request *req, struct lguest_dma *dma) +{ + unsigned int i = 0, idx, len = 0; + struct bio *bio; + + rq_for_each_bio(bio, req) { + struct bio_vec *bvec; + bio_for_each_segment(bvec, bio, idx) { + BUG_ON(i == LGUEST_MAX_DMA_SECTIONS); + BUG_ON(!bvec->bv_len); + dma->addr[i] = page_to_phys(bvec->bv_page) + + bvec->bv_offset; + dma->len[i] = bvec->bv_len; + len += bvec->bv_len; + i++; + } + } + if (i < LGUEST_MAX_DMA_SECTIONS) + dma->len[i] = 0; + return len; +} + +static void empty_dma(struct lguest_dma *dma) +{ + dma->len[0] = 0; +} + +static void setup_req(struct blockdev *bd, + int type, struct request *req, struct lguest_dma *dma) +{ + bd->lb_page->type = type; + bd->lb_page->sector = req->sector; + bd->lb_page->result = 0; + bd->req = req; + bd->lb_page->bytes = req_to_dma(req, dma); +} + +static void do_write(struct blockdev *bd, struct request *req) +{ + struct lguest_dma send; + + pr_debug("lgb: WRITE sector %li\n", (long)req->sector); + setup_req(bd, 1, req, &send); + + lguest_send_dma(bd->phys_addr, &send); +} + +static void do_read(struct blockdev *bd, struct request *req) +{ + struct lguest_dma ping; + + pr_debug("lgb: READ sector %li\n", (long)req->sector); + setup_req(bd, 0, req, &bd->dma); + + empty_dma(&ping); + lguest_send_dma(bd->phys_addr, &ping); +} + +static void do_lgb_request(request_queue_t *q) +{ + struct blockdev *bd; + struct request *req; + +again: + req = elv_next_request(q); + if (!req) + return; + + bd = req->rq_disk->private_data; + /* Sometimes we get repeated requests after blk_stop_queue. */ + if (bd->req) + return; + + if (!blk_fs_request(req)) { + pr_debug("Got non-command 0x%08x\n", req->cmd_type); + req->errors++; + end_entire_request(req, 0); + goto again; + } + + if (rq_data_dir(req) == WRITE) + do_write(bd, req); + else + do_read(bd, req); + + /* Wait for interrupt to tell us it's done. */ + blk_stop_queue(q); +} + +static struct block_device_operations lguestblk_fops = { + .owner = THIS_MODULE, +}; + +static int lguestblk_probe(struct lguest_device *lgdev) +{ + struct blockdev *bd; + int err; + int irqflags = IRQF_SHARED; + + bd = kmalloc(sizeof(*bd), GFP_KERNEL); + if (!bd) + return -ENOMEM; + + spin_lock_init(&bd->lock); + bd->irq = lgdev_irq(lgdev); + bd->req = NULL; + bd->dma.used_len = 0; + bd->dma.len[0] = 0; + bd->phys_addr = (lguest_devices[lgdev->index].pfn << PAGE_SHIFT); + + bd->lb_page = lguest_map(bd->phys_addr, 1); + if (!bd->lb_page) { + err = -ENOMEM; + goto out_free_bd; + } + + bd->major = register_blkdev(0, "lguestblk"); + if (bd->major < 0) { + err = bd->major; + goto out_unmap; + } + + bd->disk = alloc_disk(1); + if (!bd->disk) { + err = -ENOMEM; + goto out_unregister_blkdev; + } + + bd->disk->queue = blk_init_queue(do_lgb_request, &bd->lock); + if (!bd->disk->queue) { + err = -ENOMEM; + goto out_put_disk; + } + + /* We can only handle a certain number of sg entries */ + blk_queue_max_hw_segments(bd->disk->queue, LGUEST_MAX_DMA_SECTIONS); + /* Buffers must not cross page boundaries */ + blk_queue_segment_boundary(bd->disk->queue, PAGE_SIZE-1); + + sprintf(bd->disk->disk_name, "lgb%c", next_block_index++); + if (lguest_devices[lgdev->index].features & LGUEST_DEVICE_F_RANDOMNESS) + irqflags |= IRQF_SAMPLE_RANDOM; + err = request_irq(bd->irq, lgb_irq, irqflags, bd->disk->disk_name, bd); + if (err) + goto out_cleanup_queue; + + err = lguest_bind_dma(bd->phys_addr, &bd->dma, 1, bd->irq); + if (err) + goto out_free_irq; + + bd->disk->major = bd->major; + bd->disk->first_minor = 0; + bd->disk->private_data = bd; + bd->disk->fops = &lguestblk_fops; + /* This is initialized to the disk size by the other end. */ + set_capacity(bd->disk, bd->lb_page->num_sectors); + add_disk(bd->disk); + + printk(KERN_INFO "%s: device %i at major %d\n", + bd->disk->disk_name, lgdev->index, bd->major); + + lgdev->private = bd; + return 0; + +out_free_irq: + free_irq(bd->irq, bd); +out_cleanup_queue: + blk_cleanup_queue(bd->disk->queue); +out_put_disk: + put_disk(bd->disk); +out_unregister_blkdev: + unregister_blkdev(bd->major, "lguestblk"); +out_unmap: + lguest_unmap(bd->lb_page); +out_free_bd: + kfree(bd); + return err; +} + +static struct lguest_driver lguestblk_drv = { + .name = "lguestblk", + .owner = THIS_MODULE, + .device_type = LGUEST_DEVICE_T_BLOCK, + .probe = lguestblk_probe, +}; + +static __init int lguestblk_init(void) +{ + return register_lguest_driver(&lguestblk_drv); +} +module_init(lguestblk_init); + +MODULE_DESCRIPTION("Lguest block driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 4503290da407..e425daa1eac3 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -68,6 +68,7 @@ #include <linux/loop.h> #include <linux/compat.h> #include <linux/suspend.h> +#include <linux/freezer.h> #include <linux/writeback.h> #include <linux/buffer_head.h> /* for invalidate_bdev() */ #include <linux/completion.h> @@ -600,13 +601,6 @@ static int loop_thread(void *data) struct loop_device *lo = data; struct bio *bio; - /* - * loop can be used in an encrypted device, - * hence, it mustn't be stopped at all - * because it could be indirectly used during suspension - */ - current->flags |= PF_NOFREEZE; - set_user_nice(current, -20); while (!kthread_should_stop() || lo->lo_bio) { @@ -1574,8 +1568,7 @@ static void __exit loop_exit(void) loop_del_one(lo); blk_unregister_region(MKDEV(LOOP_MAJOR, 0), range); - if (unregister_blkdev(LOOP_MAJOR, "loop")) - printk(KERN_WARNING "loop: cannot unregister blkdev\n"); + unregister_blkdev(LOOP_MAJOR, "loop"); } module_init(loop_init); diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 7c294a40002e..31be33e4f119 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -1593,6 +1593,7 @@ static int kcdrwd(void *foobar) long min_sleep_time, residue; set_user_nice(current, -20); + set_freezable(); for (;;) { DECLARE_WAITQUEUE(wait, current); diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c index 0f5e3caf85d7..2288b55d916f 100644 --- a/drivers/block/sunvdc.c +++ b/drivers/block/sunvdc.c @@ -45,8 +45,6 @@ struct vdc_req_entry { struct vdc_port { struct vio_driver_state vio; - struct vdc *vp; - struct gendisk *disk; struct vdc_completion *cmp; @@ -72,8 +70,6 @@ struct vdc_port { struct vio_disk_geom geom; struct vio_disk_vtoc label; - - struct list_head list; }; static inline struct vdc_port *to_vdc_port(struct vio_driver_state *vio) @@ -81,15 +77,6 @@ static inline struct vdc_port *to_vdc_port(struct vio_driver_state *vio) return container_of(vio, struct vdc_port, vio); } -struct vdc { - /* Protects prot_list. */ - spinlock_t lock; - - struct vio_dev *dev; - - struct list_head port_list; -}; - /* Ordered from largest major to lowest */ static struct vio_version vdc_versions[] = { { .major = 1, .minor = 0 }, @@ -747,21 +734,23 @@ static struct vio_driver_ops vdc_vio_ops = { .handshake_complete = vdc_handshake_complete, }; +static void print_version(void) +{ + static int version_printed; + + if (version_printed++ == 0) + printk(KERN_INFO "%s", version); +} + static int __devinit vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id) { struct mdesc_handle *hp; struct vdc_port *port; - unsigned long flags; - struct vdc *vp; const u64 *port_id; int err; - vp = dev_get_drvdata(vdev->dev.parent); - if (!vp) { - printk(KERN_ERR PFX "Cannot find port parent vdc.\n"); - return -ENODEV; - } + print_version(); hp = mdesc_grab(); @@ -783,7 +772,6 @@ static int __devinit vdc_port_probe(struct vio_dev *vdev, goto err_out_release_mdesc; } - port->vp = vp; port->dev_no = *port_id; if (port->dev_no >= 26) @@ -818,12 +806,6 @@ static int __devinit vdc_port_probe(struct vio_dev *vdev, if (err) goto err_out_free_tx_ring; - INIT_LIST_HEAD(&port->list); - - spin_lock_irqsave(&vp->lock, flags); - list_add(&port->list, &vp->port_list); - spin_unlock_irqrestore(&vp->lock, flags); - dev_set_drvdata(&vdev->dev, port); mdesc_release(hp); @@ -879,58 +861,6 @@ static struct vio_driver vdc_port_driver = { } }; -static int __devinit vdc_probe(struct vio_dev *vdev, - const struct vio_device_id *id) -{ - static int vdc_version_printed; - struct vdc *vp; - - if (vdc_version_printed++ == 0) - printk(KERN_INFO "%s", version); - - vp = kzalloc(sizeof(struct vdc), GFP_KERNEL); - if (!vp) - return -ENOMEM; - - spin_lock_init(&vp->lock); - vp->dev = vdev; - INIT_LIST_HEAD(&vp->port_list); - - dev_set_drvdata(&vdev->dev, vp); - - return 0; -} - -static int vdc_remove(struct vio_dev *vdev) -{ - - struct vdc *vp = dev_get_drvdata(&vdev->dev); - - if (vp) { - kfree(vp); - dev_set_drvdata(&vdev->dev, NULL); - } - return 0; -} - -static struct vio_device_id vdc_match[] = { - { - .type = "block", - }, - {}, -}; -MODULE_DEVICE_TABLE(vio, vdc_match); - -static struct vio_driver vdc_driver = { - .id_table = vdc_match, - .probe = vdc_probe, - .remove = vdc_remove, - .driver = { - .name = "vdc", - .owner = THIS_MODULE, - } -}; - static int __init vdc_init(void) { int err; @@ -940,19 +870,13 @@ static int __init vdc_init(void) goto out_err; vdc_major = err; - err = vio_register_driver(&vdc_driver); - if (err) - goto out_unregister_blkdev; err = vio_register_driver(&vdc_port_driver); if (err) - goto out_unregister_vdc; + goto out_unregister_blkdev; return 0; -out_unregister_vdc: - vio_unregister_driver(&vdc_driver); - out_unregister_blkdev: unregister_blkdev(vdc_major, VDCBLK_NAME); vdc_major = 0; @@ -964,7 +888,6 @@ out_err: static void __exit vdc_exit(void) { vio_unregister_driver(&vdc_port_driver); - vio_unregister_driver(&vdc_driver); unregister_blkdev(vdc_major, VDCBLK_NAME); } diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c index 54509eb3391b..949ae93499e5 100644 --- a/drivers/block/sx8.c +++ b/drivers/block/sx8.c @@ -1608,7 +1608,7 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) } #endif - host = kmalloc(sizeof(*host), GFP_KERNEL); + host = kzalloc(sizeof(*host), GFP_KERNEL); if (!host) { printk(KERN_ERR DRV_NAME "(%s): memory alloc failure\n", pci_name(pdev)); @@ -1616,7 +1616,6 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_regions; } - memset(host, 0, sizeof(*host)); host->pdev = pdev; host->flags = pci_dac ? FL_DAC : 0; spin_lock_init(&host->lock); diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c new file mode 100644 index 000000000000..6746c29181f8 --- /dev/null +++ b/drivers/block/xen-blkfront.c @@ -0,0 +1,988 @@ +/* + * blkfront.c + * + * XenLinux virtual block device driver. + * + * Copyright (c) 2003-2004, Keir Fraser & Steve Hand + * Modifications by Mark A. Williamson are (c) Intel Research Cambridge + * Copyright (c) 2004, Christian Limpach + * Copyright (c) 2004, Andrew Warfield + * Copyright (c) 2005, Christopher Clark + * Copyright (c) 2005, XenSource Ltd + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <linux/interrupt.h> +#include <linux/blkdev.h> +#include <linux/module.h> + +#include <xen/xenbus.h> +#include <xen/grant_table.h> +#include <xen/events.h> +#include <xen/page.h> + +#include <xen/interface/grant_table.h> +#include <xen/interface/io/blkif.h> + +#include <asm/xen/hypervisor.h> + +enum blkif_state { + BLKIF_STATE_DISCONNECTED, + BLKIF_STATE_CONNECTED, + BLKIF_STATE_SUSPENDED, +}; + +struct blk_shadow { + struct blkif_request req; + unsigned long request; + unsigned long frame[BLKIF_MAX_SEGMENTS_PER_REQUEST]; +}; + +static struct block_device_operations xlvbd_block_fops; + +#define BLK_RING_SIZE __RING_SIZE((struct blkif_sring *)0, PAGE_SIZE) + +/* + * We have one of these per vbd, whether ide, scsi or 'other'. They + * hang in private_data off the gendisk structure. We may end up + * putting all kinds of interesting stuff here :-) + */ +struct blkfront_info +{ + struct xenbus_device *xbdev; + dev_t dev; + struct gendisk *gd; + int vdevice; + blkif_vdev_t handle; + enum blkif_state connected; + int ring_ref; + struct blkif_front_ring ring; + unsigned int evtchn, irq; + struct request_queue *rq; + struct work_struct work; + struct gnttab_free_callback callback; + struct blk_shadow shadow[BLK_RING_SIZE]; + unsigned long shadow_free; + int feature_barrier; + + /** + * The number of people holding this device open. We won't allow a + * hot-unplug unless this is 0. + */ + int users; +}; + +static DEFINE_SPINLOCK(blkif_io_lock); + +#define MAXIMUM_OUTSTANDING_BLOCK_REQS \ + (BLKIF_MAX_SEGMENTS_PER_REQUEST * BLK_RING_SIZE) +#define GRANT_INVALID_REF 0 + +#define PARTS_PER_DISK 16 + +#define BLKIF_MAJOR(dev) ((dev)>>8) +#define BLKIF_MINOR(dev) ((dev) & 0xff) + +#define DEV_NAME "xvd" /* name in /dev */ + +/* Information about our VBDs. */ +#define MAX_VBDS 64 +static LIST_HEAD(vbds_list); + +static int get_id_from_freelist(struct blkfront_info *info) +{ + unsigned long free = info->shadow_free; + BUG_ON(free > BLK_RING_SIZE); + info->shadow_free = info->shadow[free].req.id; + info->shadow[free].req.id = 0x0fffffee; /* debug */ + return free; +} + +static void add_id_to_freelist(struct blkfront_info *info, + unsigned long id) +{ + info->shadow[id].req.id = info->shadow_free; + info->shadow[id].request = 0; + info->shadow_free = id; +} + +static void blkif_restart_queue_callback(void *arg) +{ + struct blkfront_info *info = (struct blkfront_info *)arg; + schedule_work(&info->work); +} + +/* + * blkif_queue_request + * + * request block io + * + * id: for guest use only. + * operation: BLKIF_OP_{READ,WRITE,PROBE} + * buffer: buffer to read/write into. this should be a + * virtual address in the guest os. + */ +static int blkif_queue_request(struct request *req) +{ + struct blkfront_info *info = req->rq_disk->private_data; + unsigned long buffer_mfn; + struct blkif_request *ring_req; + struct bio *bio; + struct bio_vec *bvec; + int idx; + unsigned long id; + unsigned int fsect, lsect; + int ref; + grant_ref_t gref_head; + + if (unlikely(info->connected != BLKIF_STATE_CONNECTED)) + return 1; + + if (gnttab_alloc_grant_references( + BLKIF_MAX_SEGMENTS_PER_REQUEST, &gref_head) < 0) { + gnttab_request_free_callback( + &info->callback, + blkif_restart_queue_callback, + info, + BLKIF_MAX_SEGMENTS_PER_REQUEST); + return 1; + } + + /* Fill out a communications ring structure. */ + ring_req = RING_GET_REQUEST(&info->ring, info->ring.req_prod_pvt); + id = get_id_from_freelist(info); + info->shadow[id].request = (unsigned long)req; + + ring_req->id = id; + ring_req->sector_number = (blkif_sector_t)req->sector; + ring_req->handle = info->handle; + + ring_req->operation = rq_data_dir(req) ? + BLKIF_OP_WRITE : BLKIF_OP_READ; + if (blk_barrier_rq(req)) + ring_req->operation = BLKIF_OP_WRITE_BARRIER; + + ring_req->nr_segments = 0; + rq_for_each_bio (bio, req) { + bio_for_each_segment (bvec, bio, idx) { + BUG_ON(ring_req->nr_segments + == BLKIF_MAX_SEGMENTS_PER_REQUEST); + buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page)); + fsect = bvec->bv_offset >> 9; + lsect = fsect + (bvec->bv_len >> 9) - 1; + /* install a grant reference. */ + ref = gnttab_claim_grant_reference(&gref_head); + BUG_ON(ref == -ENOSPC); + + gnttab_grant_foreign_access_ref( + ref, + info->xbdev->otherend_id, + buffer_mfn, + rq_data_dir(req) ); + + info->shadow[id].frame[ring_req->nr_segments] = + mfn_to_pfn(buffer_mfn); + + ring_req->seg[ring_req->nr_segments] = + (struct blkif_request_segment) { + .gref = ref, + .first_sect = fsect, + .last_sect = lsect }; + + ring_req->nr_segments++; + } + } + + info->ring.req_prod_pvt++; + + /* Keep a private copy so we can reissue requests when recovering. */ + info->shadow[id].req = *ring_req; + + gnttab_free_grant_references(gref_head); + + return 0; +} + + +static inline void flush_requests(struct blkfront_info *info) +{ + int notify; + + RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&info->ring, notify); + + if (notify) + notify_remote_via_irq(info->irq); +} + +/* + * do_blkif_request + * read a block; request is in a request queue + */ +static void do_blkif_request(request_queue_t *rq) +{ + struct blkfront_info *info = NULL; + struct request *req; + int queued; + + pr_debug("Entered do_blkif_request\n"); + + queued = 0; + + while ((req = elv_next_request(rq)) != NULL) { + info = req->rq_disk->private_data; + if (!blk_fs_request(req)) { + end_request(req, 0); + continue; + } + + if (RING_FULL(&info->ring)) + goto wait; + + pr_debug("do_blk_req %p: cmd %p, sec %lx, " + "(%u/%li) buffer:%p [%s]\n", + req, req->cmd, (unsigned long)req->sector, + req->current_nr_sectors, + req->nr_sectors, req->buffer, + rq_data_dir(req) ? "write" : "read"); + + + blkdev_dequeue_request(req); + if (blkif_queue_request(req)) { + blk_requeue_request(rq, req); +wait: + /* Avoid pointless unplugs. */ + blk_stop_queue(rq); + break; + } + + queued++; + } + + if (queued != 0) + flush_requests(info); +} + +static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size) +{ + request_queue_t *rq; + + rq = blk_init_queue(do_blkif_request, &blkif_io_lock); + if (rq == NULL) + return -1; + + elevator_init(rq, "noop"); + + /* Hard sector size and max sectors impersonate the equiv. hardware. */ + blk_queue_hardsect_size(rq, sector_size); + blk_queue_max_sectors(rq, 512); + + /* Each segment in a request is up to an aligned page in size. */ + blk_queue_segment_boundary(rq, PAGE_SIZE - 1); + blk_queue_max_segment_size(rq, PAGE_SIZE); + + /* Ensure a merged request will fit in a single I/O ring slot. */ + blk_queue_max_phys_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST); + blk_queue_max_hw_segments(rq, BLKIF_MAX_SEGMENTS_PER_REQUEST); + + /* Make sure buffer addresses are sector-aligned. */ + blk_queue_dma_alignment(rq, 511); + + gd->queue = rq; + + return 0; +} + + +static int xlvbd_barrier(struct blkfront_info *info) +{ + int err; + + err = blk_queue_ordered(info->rq, + info->feature_barrier ? QUEUE_ORDERED_DRAIN : QUEUE_ORDERED_NONE, + NULL); + + if (err) + return err; + + printk(KERN_INFO "blkfront: %s: barriers %s\n", + info->gd->disk_name, + info->feature_barrier ? "enabled" : "disabled"); + return 0; +} + + +static int xlvbd_alloc_gendisk(int minor, blkif_sector_t capacity, + int vdevice, u16 vdisk_info, u16 sector_size, + struct blkfront_info *info) +{ + struct gendisk *gd; + int nr_minors = 1; + int err = -ENODEV; + + BUG_ON(info->gd != NULL); + BUG_ON(info->rq != NULL); + + if ((minor % PARTS_PER_DISK) == 0) + nr_minors = PARTS_PER_DISK; + + gd = alloc_disk(nr_minors); + if (gd == NULL) + goto out; + + if (nr_minors > 1) + sprintf(gd->disk_name, "%s%c", DEV_NAME, + 'a' + minor / PARTS_PER_DISK); + else + sprintf(gd->disk_name, "%s%c%d", DEV_NAME, + 'a' + minor / PARTS_PER_DISK, + minor % PARTS_PER_DISK); + + gd->major = XENVBD_MAJOR; + gd->first_minor = minor; + gd->fops = &xlvbd_block_fops; + gd->private_data = info; + gd->driverfs_dev = &(info->xbdev->dev); + set_capacity(gd, capacity); + + if (xlvbd_init_blk_queue(gd, sector_size)) { + del_gendisk(gd); + goto out; + } + + info->rq = gd->queue; + info->gd = gd; + + if (info->feature_barrier) + xlvbd_barrier(info); + + if (vdisk_info & VDISK_READONLY) + set_disk_ro(gd, 1); + + if (vdisk_info & VDISK_REMOVABLE) + gd->flags |= GENHD_FL_REMOVABLE; + + if (vdisk_info & VDISK_CDROM) + gd->flags |= GENHD_FL_CD; + + return 0; + + out: + return err; +} + +static void kick_pending_request_queues(struct blkfront_info *info) +{ + if (!RING_FULL(&info->ring)) { + /* Re-enable calldowns. */ + blk_start_queue(info->rq); + /* Kick things off immediately. */ + do_blkif_request(info->rq); + } +} + +static void blkif_restart_queue(struct work_struct *work) +{ + struct blkfront_info *info = container_of(work, struct blkfront_info, work); + + spin_lock_irq(&blkif_io_lock); + if (info->connected == BLKIF_STATE_CONNECTED) + kick_pending_request_queues(info); + spin_unlock_irq(&blkif_io_lock); +} + +static void blkif_free(struct blkfront_info *info, int suspend) +{ + /* Prevent new requests being issued until we fix things up. */ + spin_lock_irq(&blkif_io_lock); + info->connected = suspend ? + BLKIF_STATE_SUSPENDED : BLKIF_STATE_DISCONNECTED; + /* No more blkif_request(). */ + if (info->rq) + blk_stop_queue(info->rq); + /* No more gnttab callback work. */ + gnttab_cancel_free_callback(&info->callback); + spin_unlock_irq(&blkif_io_lock); + + /* Flush gnttab callback work. Must be done with no locks held. */ + flush_scheduled_work(); + + /* Free resources associated with old device channel. */ + if (info->ring_ref != GRANT_INVALID_REF) { + gnttab_end_foreign_access(info->ring_ref, 0, + (unsigned long)info->ring.sring); + info->ring_ref = GRANT_INVALID_REF; + info->ring.sring = NULL; + } + if (info->irq) + unbind_from_irqhandler(info->irq, info); + info->evtchn = info->irq = 0; + +} + +static void blkif_completion(struct blk_shadow *s) +{ + int i; + for (i = 0; i < s->req.nr_segments; i++) + gnttab_end_foreign_access(s->req.seg[i].gref, 0, 0UL); +} + +static irqreturn_t blkif_interrupt(int irq, void *dev_id) +{ + struct request *req; + struct blkif_response *bret; + RING_IDX i, rp; + unsigned long flags; + struct blkfront_info *info = (struct blkfront_info *)dev_id; + int uptodate; + + spin_lock_irqsave(&blkif_io_lock, flags); + + if (unlikely(info->connected != BLKIF_STATE_CONNECTED)) { + spin_unlock_irqrestore(&blkif_io_lock, flags); + return IRQ_HANDLED; + } + + again: + rp = info->ring.sring->rsp_prod; + rmb(); /* Ensure we see queued responses up to 'rp'. */ + + for (i = info->ring.rsp_cons; i != rp; i++) { + unsigned long id; + int ret; + + bret = RING_GET_RESPONSE(&info->ring, i); + id = bret->id; + req = (struct request *)info->shadow[id].request; + + blkif_completion(&info->shadow[id]); + + add_id_to_freelist(info, id); + + uptodate = (bret->status == BLKIF_RSP_OKAY); + switch (bret->operation) { + case BLKIF_OP_WRITE_BARRIER: + if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) { + printk(KERN_WARNING "blkfront: %s: write barrier op failed\n", + info->gd->disk_name); + uptodate = -EOPNOTSUPP; + info->feature_barrier = 0; + xlvbd_barrier(info); + } + /* fall through */ + case BLKIF_OP_READ: + case BLKIF_OP_WRITE: + if (unlikely(bret->status != BLKIF_RSP_OKAY)) + dev_dbg(&info->xbdev->dev, "Bad return from blkdev data " + "request: %x\n", bret->status); + + ret = end_that_request_first(req, uptodate, + req->hard_nr_sectors); + BUG_ON(ret); + end_that_request_last(req, uptodate); + break; + default: + BUG(); + } + } + + info->ring.rsp_cons = i; + + if (i != info->ring.req_prod_pvt) { + int more_to_do; + RING_FINAL_CHECK_FOR_RESPONSES(&info->ring, more_to_do); + if (more_to_do) + goto again; + } else + info->ring.sring->rsp_event = i + 1; + + kick_pending_request_queues(info); + + spin_unlock_irqrestore(&blkif_io_lock, flags); + + return IRQ_HANDLED; +} + + +static int setup_blkring(struct xenbus_device *dev, + struct blkfront_info *info) +{ + struct blkif_sring *sring; + int err; + + info->ring_ref = GRANT_INVALID_REF; + + sring = (struct blkif_sring *)__get_free_page(GFP_KERNEL); + if (!sring) { + xenbus_dev_fatal(dev, -ENOMEM, "allocating shared ring"); + return -ENOMEM; + } + SHARED_RING_INIT(sring); + FRONT_RING_INIT(&info->ring, sring, PAGE_SIZE); + + err = xenbus_grant_ring(dev, virt_to_mfn(info->ring.sring)); + if (err < 0) { + free_page((unsigned long)sring); + info->ring.sring = NULL; + goto fail; + } + info->ring_ref = err; + + err = xenbus_alloc_evtchn(dev, &info->evtchn); + if (err) + goto fail; + + err = bind_evtchn_to_irqhandler(info->evtchn, + blkif_interrupt, + IRQF_SAMPLE_RANDOM, "blkif", info); + if (err <= 0) { + xenbus_dev_fatal(dev, err, + "bind_evtchn_to_irqhandler failed"); + goto fail; + } + info->irq = err; + + return 0; +fail: + blkif_free(info, 0); + return err; +} + + +/* Common code used when first setting up, and when resuming. */ +static int talk_to_backend(struct xenbus_device *dev, + struct blkfront_info *info) +{ + const char *message = NULL; + struct xenbus_transaction xbt; + int err; + + /* Create shared ring, alloc event channel. */ + err = setup_blkring(dev, info); + if (err) + goto out; + +again: + err = xenbus_transaction_start(&xbt); + if (err) { + xenbus_dev_fatal(dev, err, "starting transaction"); + goto destroy_blkring; + } + + err = xenbus_printf(xbt, dev->nodename, + "ring-ref", "%u", info->ring_ref); + if (err) { + message = "writing ring-ref"; + goto abort_transaction; + } + err = xenbus_printf(xbt, dev->nodename, + "event-channel", "%u", info->evtchn); + if (err) { + message = "writing event-channel"; + goto abort_transaction; + } + + err = xenbus_transaction_end(xbt, 0); + if (err) { + if (err == -EAGAIN) + goto again; + xenbus_dev_fatal(dev, err, "completing transaction"); + goto destroy_blkring; + } + + xenbus_switch_state(dev, XenbusStateInitialised); + + return 0; + + abort_transaction: + xenbus_transaction_end(xbt, 1); + if (message) + xenbus_dev_fatal(dev, err, "%s", message); + destroy_blkring: + blkif_free(info, 0); + out: + return err; +} + + +/** + * Entry point to this code when a new device is created. Allocate the basic + * structures and the ring buffer for communication with the backend, and + * inform the backend of the appropriate details for those. Switch to + * Initialised state. + */ +static int blkfront_probe(struct xenbus_device *dev, + const struct xenbus_device_id *id) +{ + int err, vdevice, i; + struct blkfront_info *info; + + /* FIXME: Use dynamic device id if this is not set. */ + err = xenbus_scanf(XBT_NIL, dev->nodename, + "virtual-device", "%i", &vdevice); + if (err != 1) { + xenbus_dev_fatal(dev, err, "reading virtual-device"); + return err; + } + + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) { + xenbus_dev_fatal(dev, -ENOMEM, "allocating info structure"); + return -ENOMEM; + } + + info->xbdev = dev; + info->vdevice = vdevice; + info->connected = BLKIF_STATE_DISCONNECTED; + INIT_WORK(&info->work, blkif_restart_queue); + + for (i = 0; i < BLK_RING_SIZE; i++) + info->shadow[i].req.id = i+1; + info->shadow[BLK_RING_SIZE-1].req.id = 0x0fffffff; + + /* Front end dir is a number, which is used as the id. */ + info->handle = simple_strtoul(strrchr(dev->nodename, '/')+1, NULL, 0); + dev->dev.driver_data = info; + + err = talk_to_backend(dev, info); + if (err) { + kfree(info); + dev->dev.driver_data = NULL; + return err; + } + + return 0; +} + + +static int blkif_recover(struct blkfront_info *info) +{ + int i; + struct blkif_request *req; + struct blk_shadow *copy; + int j; + + /* Stage 1: Make a safe copy of the shadow state. */ + copy = kmalloc(sizeof(info->shadow), GFP_KERNEL); + if (!copy) + return -ENOMEM; + memcpy(copy, info->shadow, sizeof(info->shadow)); + + /* Stage 2: Set up free list. */ + memset(&info->shadow, 0, sizeof(info->shadow)); + for (i = 0; i < BLK_RING_SIZE; i++) + info->shadow[i].req.id = i+1; + info->shadow_free = info->ring.req_prod_pvt; + info->shadow[BLK_RING_SIZE-1].req.id = 0x0fffffff; + + /* Stage 3: Find pending requests and requeue them. */ + for (i = 0; i < BLK_RING_SIZE; i++) { + /* Not in use? */ + if (copy[i].request == 0) + continue; + + /* Grab a request slot and copy shadow state into it. */ + req = RING_GET_REQUEST(&info->ring, info->ring.req_prod_pvt); + *req = copy[i].req; + + /* We get a new request id, and must reset the shadow state. */ + req->id = get_id_from_freelist(info); + memcpy(&info->shadow[req->id], ©[i], sizeof(copy[i])); + + /* Rewrite any grant references invalidated by susp/resume. */ + for (j = 0; j < req->nr_segments; j++) + gnttab_grant_foreign_access_ref( + req->seg[j].gref, + info->xbdev->otherend_id, + pfn_to_mfn(info->shadow[req->id].frame[j]), + rq_data_dir( + (struct request *) + info->shadow[req->id].request)); + info->shadow[req->id].req = *req; + + info->ring.req_prod_pvt++; + } + + kfree(copy); + + xenbus_switch_state(info->xbdev, XenbusStateConnected); + + spin_lock_irq(&blkif_io_lock); + + /* Now safe for us to use the shared ring */ + info->connected = BLKIF_STATE_CONNECTED; + + /* Send off requeued requests */ + flush_requests(info); + + /* Kick any other new requests queued since we resumed */ + kick_pending_request_queues(info); + + spin_unlock_irq(&blkif_io_lock); + + return 0; +} + +/** + * We are reconnecting to the backend, due to a suspend/resume, or a backend + * driver restart. We tear down our blkif structure and recreate it, but + * leave the device-layer structures intact so that this is transparent to the + * rest of the kernel. + */ +static int blkfront_resume(struct xenbus_device *dev) +{ + struct blkfront_info *info = dev->dev.driver_data; + int err; + + dev_dbg(&dev->dev, "blkfront_resume: %s\n", dev->nodename); + + blkif_free(info, info->connected == BLKIF_STATE_CONNECTED); + + err = talk_to_backend(dev, info); + if (info->connected == BLKIF_STATE_SUSPENDED && !err) + err = blkif_recover(info); + + return err; +} + + +/* + * Invoked when the backend is finally 'ready' (and has told produced + * the details about the physical device - #sectors, size, etc). + */ +static void blkfront_connect(struct blkfront_info *info) +{ + unsigned long long sectors; + unsigned long sector_size; + unsigned int binfo; + int err; + + if ((info->connected == BLKIF_STATE_CONNECTED) || + (info->connected == BLKIF_STATE_SUSPENDED) ) + return; + + dev_dbg(&info->xbdev->dev, "%s:%s.\n", + __func__, info->xbdev->otherend); + + err = xenbus_gather(XBT_NIL, info->xbdev->otherend, + "sectors", "%llu", §ors, + "info", "%u", &binfo, + "sector-size", "%lu", §or_size, + NULL); + if (err) { + xenbus_dev_fatal(info->xbdev, err, + "reading backend fields at %s", + info->xbdev->otherend); + return; + } + + err = xenbus_gather(XBT_NIL, info->xbdev->otherend, + "feature-barrier", "%lu", &info->feature_barrier, + NULL); + if (err) + info->feature_barrier = 0; + + err = xlvbd_alloc_gendisk(BLKIF_MINOR(info->vdevice), + sectors, info->vdevice, + binfo, sector_size, info); + if (err) { + xenbus_dev_fatal(info->xbdev, err, "xlvbd_add at %s", + info->xbdev->otherend); + return; + } + + xenbus_switch_state(info->xbdev, XenbusStateConnected); + + /* Kick pending requests. */ + spin_lock_irq(&blkif_io_lock); + info->connected = BLKIF_STATE_CONNECTED; + kick_pending_request_queues(info); + spin_unlock_irq(&blkif_io_lock); + + add_disk(info->gd); +} + +/** + * Handle the change of state of the backend to Closing. We must delete our + * device-layer structures now, to ensure that writes are flushed through to + * the backend. Once is this done, we can switch to Closed in + * acknowledgement. + */ +static void blkfront_closing(struct xenbus_device *dev) +{ + struct blkfront_info *info = dev->dev.driver_data; + unsigned long flags; + + dev_dbg(&dev->dev, "blkfront_closing: %s removed\n", dev->nodename); + + if (info->rq == NULL) + goto out; + + spin_lock_irqsave(&blkif_io_lock, flags); + + del_gendisk(info->gd); + + /* No more blkif_request(). */ + blk_stop_queue(info->rq); + + /* No more gnttab callback work. */ + gnttab_cancel_free_callback(&info->callback); + spin_unlock_irqrestore(&blkif_io_lock, flags); + + /* Flush gnttab callback work. Must be done with no locks held. */ + flush_scheduled_work(); + + blk_cleanup_queue(info->rq); + info->rq = NULL; + + out: + xenbus_frontend_closed(dev); +} + +/** + * Callback received when the backend's state changes. + */ +static void backend_changed(struct xenbus_device *dev, + enum xenbus_state backend_state) +{ + struct blkfront_info *info = dev->dev.driver_data; + struct block_device *bd; + + dev_dbg(&dev->dev, "blkfront:backend_changed.\n"); + + switch (backend_state) { + case XenbusStateInitialising: + case XenbusStateInitWait: + case XenbusStateInitialised: + case XenbusStateUnknown: + case XenbusStateClosed: + break; + + case XenbusStateConnected: + blkfront_connect(info); + break; + + case XenbusStateClosing: + bd = bdget(info->dev); + if (bd == NULL) + xenbus_dev_fatal(dev, -ENODEV, "bdget failed"); + + mutex_lock(&bd->bd_mutex); + if (info->users > 0) + xenbus_dev_error(dev, -EBUSY, + "Device in use; refusing to close"); + else + blkfront_closing(dev); + mutex_unlock(&bd->bd_mutex); + bdput(bd); + break; + } +} + +static int blkfront_remove(struct xenbus_device *dev) +{ + struct blkfront_info *info = dev->dev.driver_data; + + dev_dbg(&dev->dev, "blkfront_remove: %s removed\n", dev->nodename); + + blkif_free(info, 0); + + kfree(info); + + return 0; +} + +static int blkif_open(struct inode *inode, struct file *filep) +{ + struct blkfront_info *info = inode->i_bdev->bd_disk->private_data; + info->users++; + return 0; +} + +static int blkif_release(struct inode *inode, struct file *filep) +{ + struct blkfront_info *info = inode->i_bdev->bd_disk->private_data; + info->users--; + if (info->users == 0) { + /* Check whether we have been instructed to close. We will + have ignored this request initially, as the device was + still mounted. */ + struct xenbus_device *dev = info->xbdev; + enum xenbus_state state = xenbus_read_driver_state(dev->otherend); + + if (state == XenbusStateClosing) + blkfront_closing(dev); + } + return 0; +} + +static struct block_device_operations xlvbd_block_fops = +{ + .owner = THIS_MODULE, + .open = blkif_open, + .release = blkif_release, +}; + + +static struct xenbus_device_id blkfront_ids[] = { + { "vbd" }, + { "" } +}; + +static struct xenbus_driver blkfront = { + .name = "vbd", + .owner = THIS_MODULE, + .ids = blkfront_ids, + .probe = blkfront_probe, + .remove = blkfront_remove, + .resume = blkfront_resume, + .otherend_changed = backend_changed, +}; + +static int __init xlblk_init(void) +{ + if (!is_running_on_xen()) + return -ENODEV; + + if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) { + printk(KERN_WARNING "xen_blk: can't get major %d with name %s\n", + XENVBD_MAJOR, DEV_NAME); + return -ENODEV; + } + + return xenbus_register_frontend(&blkfront); +} +module_init(xlblk_init); + + +static void xlblk_exit(void) +{ + return xenbus_unregister_driver(&blkfront); +} +module_exit(xlblk_exit); + +MODULE_DESCRIPTION("Xen virtual block device frontend"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_BLOCKDEV_MAJOR(XENVBD_MAJOR); diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c new file mode 100644 index 000000000000..732ec63b6e9c --- /dev/null +++ b/drivers/block/xsysace.c @@ -0,0 +1,1164 @@ +/* + * Xilinx SystemACE device driver + * + * Copyright 2007 Secret Lab Technologies Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +/* + * The SystemACE chip is designed to configure FPGAs by loading an FPGA + * bitstream from a file on a CF card and squirting it into FPGAs connected + * to the SystemACE JTAG chain. It also has the advantage of providing an + * MPU interface which can be used to control the FPGA configuration process + * and to use the attached CF card for general purpose storage. + * + * This driver is a block device driver for the SystemACE. + * + * Initialization: + * The driver registers itself as a platform_device driver at module + * load time. The platform bus will take care of calling the + * ace_probe() method for all SystemACE instances in the system. Any + * number of SystemACE instances are supported. ace_probe() calls + * ace_setup() which initialized all data structures, reads the CF + * id structure and registers the device. + * + * Processing: + * Just about all of the heavy lifting in this driver is performed by + * a Finite State Machine (FSM). The driver needs to wait on a number + * of events; some raised by interrupts, some which need to be polled + * for. Describing all of the behaviour in a FSM seems to be the + * easiest way to keep the complexity low and make it easy to + * understand what the driver is doing. If the block ops or the + * request function need to interact with the hardware, then they + * simply need to flag the request and kick of FSM processing. + * + * The FSM itself is atomic-safe code which can be run from any + * context. The general process flow is: + * 1. obtain the ace->lock spinlock. + * 2. loop on ace_fsm_dostate() until the ace->fsm_continue flag is + * cleared. + * 3. release the lock. + * + * Individual states do not sleep in any way. If a condition needs to + * be waited for then the state much clear the fsm_continue flag and + * either schedule the FSM to be run again at a later time, or expect + * an interrupt to call the FSM when the desired condition is met. + * + * In normal operation, the FSM is processed at interrupt context + * either when the driver's tasklet is scheduled, or when an irq is + * raised by the hardware. The tasklet can be scheduled at any time. + * The request method in particular schedules the tasklet when a new + * request has been indicated by the block layer. Once started, the + * FSM proceeds as far as it can processing the request until it + * needs on a hardware event. At this point, it must yield execution. + * + * A state has two options when yielding execution: + * 1. ace_fsm_yield() + * - Call if need to poll for event. + * - clears the fsm_continue flag to exit the processing loop + * - reschedules the tasklet to run again as soon as possible + * 2. ace_fsm_yieldirq() + * - Call if an irq is expected from the HW + * - clears the fsm_continue flag to exit the processing loop + * - does not reschedule the tasklet so the FSM will not be processed + * again until an irq is received. + * After calling a yield function, the state must return control back + * to the FSM main loop. + * + * Additionally, the driver maintains a kernel timer which can process + * the FSM. If the FSM gets stalled, typically due to a missed + * interrupt, then the kernel timer will expire and the driver can + * continue where it left off. + * + * To Do: + * - Add FPGA configuration control interface. + * - Request major number from lanana + */ + +#undef DEBUG + +#include <linux/module.h> +#include <linux/ctype.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/blkdev.h> +#include <linux/hdreg.h> +#include <linux/platform_device.h> + +MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>"); +MODULE_DESCRIPTION("Xilinx SystemACE device driver"); +MODULE_LICENSE("GPL"); + +/* SystemACE register definitions */ +#define ACE_BUSMODE (0x00) + +#define ACE_STATUS (0x04) +#define ACE_STATUS_CFGLOCK (0x00000001) +#define ACE_STATUS_MPULOCK (0x00000002) +#define ACE_STATUS_CFGERROR (0x00000004) /* config controller error */ +#define ACE_STATUS_CFCERROR (0x00000008) /* CF controller error */ +#define ACE_STATUS_CFDETECT (0x00000010) +#define ACE_STATUS_DATABUFRDY (0x00000020) +#define ACE_STATUS_DATABUFMODE (0x00000040) +#define ACE_STATUS_CFGDONE (0x00000080) +#define ACE_STATUS_RDYFORCFCMD (0x00000100) +#define ACE_STATUS_CFGMODEPIN (0x00000200) +#define ACE_STATUS_CFGADDR_MASK (0x0000e000) +#define ACE_STATUS_CFBSY (0x00020000) +#define ACE_STATUS_CFRDY (0x00040000) +#define ACE_STATUS_CFDWF (0x00080000) +#define ACE_STATUS_CFDSC (0x00100000) +#define ACE_STATUS_CFDRQ (0x00200000) +#define ACE_STATUS_CFCORR (0x00400000) +#define ACE_STATUS_CFERR (0x00800000) + +#define ACE_ERROR (0x08) +#define ACE_CFGLBA (0x0c) +#define ACE_MPULBA (0x10) + +#define ACE_SECCNTCMD (0x14) +#define ACE_SECCNTCMD_RESET (0x0100) +#define ACE_SECCNTCMD_IDENTIFY (0x0200) +#define ACE_SECCNTCMD_READ_DATA (0x0300) +#define ACE_SECCNTCMD_WRITE_DATA (0x0400) +#define ACE_SECCNTCMD_ABORT (0x0600) + +#define ACE_VERSION (0x16) +#define ACE_VERSION_REVISION_MASK (0x00FF) +#define ACE_VERSION_MINOR_MASK (0x0F00) +#define ACE_VERSION_MAJOR_MASK (0xF000) + +#define ACE_CTRL (0x18) +#define ACE_CTRL_FORCELOCKREQ (0x0001) +#define ACE_CTRL_LOCKREQ (0x0002) +#define ACE_CTRL_FORCECFGADDR (0x0004) +#define ACE_CTRL_FORCECFGMODE (0x0008) +#define ACE_CTRL_CFGMODE (0x0010) +#define ACE_CTRL_CFGSTART (0x0020) +#define ACE_CTRL_CFGSEL (0x0040) +#define ACE_CTRL_CFGRESET (0x0080) +#define ACE_CTRL_DATABUFRDYIRQ (0x0100) +#define ACE_CTRL_ERRORIRQ (0x0200) +#define ACE_CTRL_CFGDONEIRQ (0x0400) +#define ACE_CTRL_RESETIRQ (0x0800) +#define ACE_CTRL_CFGPROG (0x1000) +#define ACE_CTRL_CFGADDR_MASK (0xe000) + +#define ACE_FATSTAT (0x1c) + +#define ACE_NUM_MINORS 16 +#define ACE_SECTOR_SIZE (512) +#define ACE_FIFO_SIZE (32) +#define ACE_BUF_PER_SECTOR (ACE_SECTOR_SIZE / ACE_FIFO_SIZE) + +struct ace_reg_ops; + +struct ace_device { + /* driver state data */ + int id; + int media_change; + int users; + struct list_head list; + + /* finite state machine data */ + struct tasklet_struct fsm_tasklet; + uint fsm_task; /* Current activity (ACE_TASK_*) */ + uint fsm_state; /* Current state (ACE_FSM_STATE_*) */ + uint fsm_continue_flag; /* cleared to exit FSM mainloop */ + uint fsm_iter_num; + struct timer_list stall_timer; + + /* Transfer state/result, use for both id and block request */ + struct request *req; /* request being processed */ + void *data_ptr; /* pointer to I/O buffer */ + int data_count; /* number of buffers remaining */ + int data_result; /* Result of transfer; 0 := success */ + + int id_req_count; /* count of id requests */ + int id_result; + struct completion id_completion; /* used when id req finishes */ + int in_irq; + + /* Details of hardware device */ + unsigned long physaddr; + void *baseaddr; + int irq; + int bus_width; /* 0 := 8 bit; 1 := 16 bit */ + struct ace_reg_ops *reg_ops; + int lock_count; + + /* Block device data structures */ + spinlock_t lock; + struct device *dev; + struct request_queue *queue; + struct gendisk *gd; + + /* Inserted CF card parameters */ + struct hd_driveid cf_id; +}; + +static int ace_major; + +/* --------------------------------------------------------------------- + * Low level register access + */ + +struct ace_reg_ops { + u16(*in) (struct ace_device * ace, int reg); + void (*out) (struct ace_device * ace, int reg, u16 val); + void (*datain) (struct ace_device * ace); + void (*dataout) (struct ace_device * ace); +}; + +/* 8 Bit bus width */ +static u16 ace_in_8(struct ace_device *ace, int reg) +{ + void *r = ace->baseaddr + reg; + return in_8(r) | (in_8(r + 1) << 8); +} + +static void ace_out_8(struct ace_device *ace, int reg, u16 val) +{ + void *r = ace->baseaddr + reg; + out_8(r, val); + out_8(r + 1, val >> 8); +} + +static void ace_datain_8(struct ace_device *ace) +{ + void *r = ace->baseaddr + 0x40; + u8 *dst = ace->data_ptr; + int i = ACE_FIFO_SIZE; + while (i--) + *dst++ = in_8(r++); + ace->data_ptr = dst; +} + +static void ace_dataout_8(struct ace_device *ace) +{ + void *r = ace->baseaddr + 0x40; + u8 *src = ace->data_ptr; + int i = ACE_FIFO_SIZE; + while (i--) + out_8(r++, *src++); + ace->data_ptr = src; +} + +static struct ace_reg_ops ace_reg_8_ops = { + .in = ace_in_8, + .out = ace_out_8, + .datain = ace_datain_8, + .dataout = ace_dataout_8, +}; + +/* 16 bit big endian bus attachment */ +static u16 ace_in_be16(struct ace_device *ace, int reg) +{ + return in_be16(ace->baseaddr + reg); +} + +static void ace_out_be16(struct ace_device *ace, int reg, u16 val) +{ + out_be16(ace->baseaddr + reg, val); +} + +static void ace_datain_be16(struct ace_device *ace) +{ + int i = ACE_FIFO_SIZE / 2; + u16 *dst = ace->data_ptr; + while (i--) + *dst++ = in_le16(ace->baseaddr + 0x40); + ace->data_ptr = dst; +} + +static void ace_dataout_be16(struct ace_device *ace) +{ + int i = ACE_FIFO_SIZE / 2; + u16 *src = ace->data_ptr; + while (i--) + out_le16(ace->baseaddr + 0x40, *src++); + ace->data_ptr = src; +} + +/* 16 bit little endian bus attachment */ +static u16 ace_in_le16(struct ace_device *ace, int reg) +{ + return in_le16(ace->baseaddr + reg); +} + +static void ace_out_le16(struct ace_device *ace, int reg, u16 val) +{ + out_le16(ace->baseaddr + reg, val); +} + +static void ace_datain_le16(struct ace_device *ace) +{ + int i = ACE_FIFO_SIZE / 2; + u16 *dst = ace->data_ptr; + while (i--) + *dst++ = in_be16(ace->baseaddr + 0x40); + ace->data_ptr = dst; +} + +static void ace_dataout_le16(struct ace_device *ace) +{ + int i = ACE_FIFO_SIZE / 2; + u16 *src = ace->data_ptr; + while (i--) + out_be16(ace->baseaddr + 0x40, *src++); + ace->data_ptr = src; +} + +static struct ace_reg_ops ace_reg_be16_ops = { + .in = ace_in_be16, + .out = ace_out_be16, + .datain = ace_datain_be16, + .dataout = ace_dataout_be16, +}; + +static struct ace_reg_ops ace_reg_le16_ops = { + .in = ace_in_le16, + .out = ace_out_le16, + .datain = ace_datain_le16, + .dataout = ace_dataout_le16, +}; + +static inline u16 ace_in(struct ace_device *ace, int reg) +{ + return ace->reg_ops->in(ace, reg); +} + +static inline u32 ace_in32(struct ace_device *ace, int reg) +{ + return ace_in(ace, reg) | (ace_in(ace, reg + 2) << 16); +} + +static inline void ace_out(struct ace_device *ace, int reg, u16 val) +{ + ace->reg_ops->out(ace, reg, val); +} + +static inline void ace_out32(struct ace_device *ace, int reg, u32 val) +{ + ace_out(ace, reg, val); + ace_out(ace, reg + 2, val >> 16); +} + +/* --------------------------------------------------------------------- + * Debug support functions + */ + +#if defined(DEBUG) +static void ace_dump_mem(void *base, int len) +{ + const char *ptr = base; + int i, j; + + for (i = 0; i < len; i += 16) { + printk(KERN_INFO "%.8x:", i); + for (j = 0; j < 16; j++) { + if (!(j % 4)) + printk(" "); + printk("%.2x", ptr[i + j]); + } + printk(" "); + for (j = 0; j < 16; j++) + printk("%c", isprint(ptr[i + j]) ? ptr[i + j] : '.'); + printk("\n"); + } +} +#else +static inline void ace_dump_mem(void *base, int len) +{ +} +#endif + +static void ace_dump_regs(struct ace_device *ace) +{ + dev_info(ace->dev, " ctrl: %.8x seccnt/cmd: %.4x ver:%.4x\n" + " status:%.8x mpu_lba:%.8x busmode:%4x\n" + " error: %.8x cfg_lba:%.8x fatstat:%.4x\n", + ace_in32(ace, ACE_CTRL), + ace_in(ace, ACE_SECCNTCMD), + ace_in(ace, ACE_VERSION), + ace_in32(ace, ACE_STATUS), + ace_in32(ace, ACE_MPULBA), + ace_in(ace, ACE_BUSMODE), + ace_in32(ace, ACE_ERROR), + ace_in32(ace, ACE_CFGLBA), ace_in(ace, ACE_FATSTAT)); +} + +void ace_fix_driveid(struct hd_driveid *id) +{ +#if defined(__BIG_ENDIAN) + u16 *buf = (void *)id; + int i; + + /* All half words have wrong byte order; swap the bytes */ + for (i = 0; i < sizeof(struct hd_driveid); i += 2, buf++) + *buf = le16_to_cpu(*buf); + + /* Some of the data values are 32bit; swap the half words */ + id->lba_capacity = ((id->lba_capacity >> 16) & 0x0000FFFF) | + ((id->lba_capacity << 16) & 0xFFFF0000); + id->spg = ((id->spg >> 16) & 0x0000FFFF) | + ((id->spg << 16) & 0xFFFF0000); +#endif +} + +/* --------------------------------------------------------------------- + * Finite State Machine (FSM) implementation + */ + +/* FSM tasks; used to direct state transitions */ +#define ACE_TASK_IDLE 0 +#define ACE_TASK_IDENTIFY 1 +#define ACE_TASK_READ 2 +#define ACE_TASK_WRITE 3 +#define ACE_FSM_NUM_TASKS 4 + +/* FSM state definitions */ +#define ACE_FSM_STATE_IDLE 0 +#define ACE_FSM_STATE_REQ_LOCK 1 +#define ACE_FSM_STATE_WAIT_LOCK 2 +#define ACE_FSM_STATE_WAIT_CFREADY 3 +#define ACE_FSM_STATE_IDENTIFY_PREPARE 4 +#define ACE_FSM_STATE_IDENTIFY_TRANSFER 5 +#define ACE_FSM_STATE_IDENTIFY_COMPLETE 6 +#define ACE_FSM_STATE_REQ_PREPARE 7 +#define ACE_FSM_STATE_REQ_TRANSFER 8 +#define ACE_FSM_STATE_REQ_COMPLETE 9 +#define ACE_FSM_STATE_ERROR 10 +#define ACE_FSM_NUM_STATES 11 + +/* Set flag to exit FSM loop and reschedule tasklet */ +static inline void ace_fsm_yield(struct ace_device *ace) +{ + dev_dbg(ace->dev, "ace_fsm_yield()\n"); + tasklet_schedule(&ace->fsm_tasklet); + ace->fsm_continue_flag = 0; +} + +/* Set flag to exit FSM loop and wait for IRQ to reschedule tasklet */ +static inline void ace_fsm_yieldirq(struct ace_device *ace) +{ + dev_dbg(ace->dev, "ace_fsm_yieldirq()\n"); + + if (ace->irq == NO_IRQ) + /* No IRQ assigned, so need to poll */ + tasklet_schedule(&ace->fsm_tasklet); + ace->fsm_continue_flag = 0; +} + +/* Get the next read/write request; ending requests that we don't handle */ +struct request *ace_get_next_request(request_queue_t * q) +{ + struct request *req; + + while ((req = elv_next_request(q)) != NULL) { + if (blk_fs_request(req)) + break; + end_request(req, 0); + } + return req; +} + +static void ace_fsm_dostate(struct ace_device *ace) +{ + struct request *req; + u32 status; + u16 val; + int count; + int i; + +#if defined(DEBUG) + dev_dbg(ace->dev, "fsm_state=%i, id_req_count=%i\n", + ace->fsm_state, ace->id_req_count); +#endif + + switch (ace->fsm_state) { + case ACE_FSM_STATE_IDLE: + /* See if there is anything to do */ + if (ace->id_req_count || ace_get_next_request(ace->queue)) { + ace->fsm_iter_num++; + ace->fsm_state = ACE_FSM_STATE_REQ_LOCK; + mod_timer(&ace->stall_timer, jiffies + HZ); + if (!timer_pending(&ace->stall_timer)) + add_timer(&ace->stall_timer); + break; + } + del_timer(&ace->stall_timer); + ace->fsm_continue_flag = 0; + break; + + case ACE_FSM_STATE_REQ_LOCK: + if (ace_in(ace, ACE_STATUS) & ACE_STATUS_MPULOCK) { + /* Already have the lock, jump to next state */ + ace->fsm_state = ACE_FSM_STATE_WAIT_CFREADY; + break; + } + + /* Request the lock */ + val = ace_in(ace, ACE_CTRL); + ace_out(ace, ACE_CTRL, val | ACE_CTRL_LOCKREQ); + ace->fsm_state = ACE_FSM_STATE_WAIT_LOCK; + break; + + case ACE_FSM_STATE_WAIT_LOCK: + if (ace_in(ace, ACE_STATUS) & ACE_STATUS_MPULOCK) { + /* got the lock; move to next state */ + ace->fsm_state = ACE_FSM_STATE_WAIT_CFREADY; + break; + } + + /* wait a bit for the lock */ + ace_fsm_yield(ace); + break; + + case ACE_FSM_STATE_WAIT_CFREADY: + status = ace_in32(ace, ACE_STATUS); + if (!(status & ACE_STATUS_RDYFORCFCMD) || + (status & ACE_STATUS_CFBSY)) { + /* CF card isn't ready; it needs to be polled */ + ace_fsm_yield(ace); + break; + } + + /* Device is ready for command; determine what to do next */ + if (ace->id_req_count) + ace->fsm_state = ACE_FSM_STATE_IDENTIFY_PREPARE; + else + ace->fsm_state = ACE_FSM_STATE_REQ_PREPARE; + break; + + case ACE_FSM_STATE_IDENTIFY_PREPARE: + /* Send identify command */ + ace->fsm_task = ACE_TASK_IDENTIFY; + ace->data_ptr = &ace->cf_id; + ace->data_count = ACE_BUF_PER_SECTOR; + ace_out(ace, ACE_SECCNTCMD, ACE_SECCNTCMD_IDENTIFY); + + /* As per datasheet, put config controller in reset */ + val = ace_in(ace, ACE_CTRL); + ace_out(ace, ACE_CTRL, val | ACE_CTRL_CFGRESET); + + /* irq handler takes over from this point; wait for the + * transfer to complete */ + ace->fsm_state = ACE_FSM_STATE_IDENTIFY_TRANSFER; + ace_fsm_yieldirq(ace); + break; + + case ACE_FSM_STATE_IDENTIFY_TRANSFER: + /* Check that the sysace is ready to receive data */ + status = ace_in32(ace, ACE_STATUS); + if (status & ACE_STATUS_CFBSY) { + dev_dbg(ace->dev, "CFBSY set; t=%i iter=%i dc=%i\n", + ace->fsm_task, ace->fsm_iter_num, + ace->data_count); + ace_fsm_yield(ace); + break; + } + if (!(status & ACE_STATUS_DATABUFRDY)) { + ace_fsm_yield(ace); + break; + } + + /* Transfer the next buffer */ + ace->reg_ops->datain(ace); + ace->data_count--; + + /* If there are still buffers to be transfers; jump out here */ + if (ace->data_count != 0) { + ace_fsm_yieldirq(ace); + break; + } + + /* transfer finished; kick state machine */ + dev_dbg(ace->dev, "identify finished\n"); + ace->fsm_state = ACE_FSM_STATE_IDENTIFY_COMPLETE; + break; + + case ACE_FSM_STATE_IDENTIFY_COMPLETE: + ace_fix_driveid(&ace->cf_id); + ace_dump_mem(&ace->cf_id, 512); /* Debug: Dump out disk ID */ + + if (ace->data_result) { + /* Error occured, disable the disk */ + ace->media_change = 1; + set_capacity(ace->gd, 0); + dev_err(ace->dev, "error fetching CF id (%i)\n", + ace->data_result); + } else { + ace->media_change = 0; + + /* Record disk parameters */ + set_capacity(ace->gd, ace->cf_id.lba_capacity); + dev_info(ace->dev, "capacity: %i sectors\n", + ace->cf_id.lba_capacity); + } + + /* We're done, drop to IDLE state and notify waiters */ + ace->fsm_state = ACE_FSM_STATE_IDLE; + ace->id_result = ace->data_result; + while (ace->id_req_count) { + complete(&ace->id_completion); + ace->id_req_count--; + } + break; + + case ACE_FSM_STATE_REQ_PREPARE: + req = ace_get_next_request(ace->queue); + if (!req) { + ace->fsm_state = ACE_FSM_STATE_IDLE; + break; + } + + /* Okay, it's a data request, set it up for transfer */ + dev_dbg(ace->dev, + "request: sec=%lx hcnt=%lx, ccnt=%x, dir=%i\n", + req->sector, req->hard_nr_sectors, + req->current_nr_sectors, rq_data_dir(req)); + + ace->req = req; + ace->data_ptr = req->buffer; + ace->data_count = req->current_nr_sectors * ACE_BUF_PER_SECTOR; + ace_out32(ace, ACE_MPULBA, req->sector & 0x0FFFFFFF); + + count = req->hard_nr_sectors; + if (rq_data_dir(req)) { + /* Kick off write request */ + dev_dbg(ace->dev, "write data\n"); + ace->fsm_task = ACE_TASK_WRITE; + ace_out(ace, ACE_SECCNTCMD, + count | ACE_SECCNTCMD_WRITE_DATA); + } else { + /* Kick off read request */ + dev_dbg(ace->dev, "read data\n"); + ace->fsm_task = ACE_TASK_READ; + ace_out(ace, ACE_SECCNTCMD, + count | ACE_SECCNTCMD_READ_DATA); + } + + /* As per datasheet, put config controller in reset */ + val = ace_in(ace, ACE_CTRL); + ace_out(ace, ACE_CTRL, val | ACE_CTRL_CFGRESET); + + /* Move to the transfer state. The systemace will raise + * an interrupt once there is something to do + */ + ace->fsm_state = ACE_FSM_STATE_REQ_TRANSFER; + if (ace->fsm_task == ACE_TASK_READ) + ace_fsm_yieldirq(ace); /* wait for data ready */ + break; + + case ACE_FSM_STATE_REQ_TRANSFER: + /* Check that the sysace is ready to receive data */ + status = ace_in32(ace, ACE_STATUS); + if (status & ACE_STATUS_CFBSY) { + dev_dbg(ace->dev, + "CFBSY set; t=%i iter=%i c=%i dc=%i irq=%i\n", + ace->fsm_task, ace->fsm_iter_num, + ace->req->current_nr_sectors * 16, + ace->data_count, ace->in_irq); + ace_fsm_yield(ace); /* need to poll CFBSY bit */ + break; + } + if (!(status & ACE_STATUS_DATABUFRDY)) { + dev_dbg(ace->dev, + "DATABUF not set; t=%i iter=%i c=%i dc=%i irq=%i\n", + ace->fsm_task, ace->fsm_iter_num, + ace->req->current_nr_sectors * 16, + ace->data_count, ace->in_irq); + ace_fsm_yieldirq(ace); + break; + } + + /* Transfer the next buffer */ + i = 16; + if (ace->fsm_task == ACE_TASK_WRITE) + ace->reg_ops->dataout(ace); + else + ace->reg_ops->datain(ace); + ace->data_count--; + + /* If there are still buffers to be transfers; jump out here */ + if (ace->data_count != 0) { + ace_fsm_yieldirq(ace); + break; + } + + /* bio finished; is there another one? */ + i = ace->req->current_nr_sectors; + if (end_that_request_first(ace->req, 1, i)) { + /* dev_dbg(ace->dev, "next block; h=%li c=%i\n", + * ace->req->hard_nr_sectors, + * ace->req->current_nr_sectors); + */ + ace->data_ptr = ace->req->buffer; + ace->data_count = ace->req->current_nr_sectors * 16; + ace_fsm_yieldirq(ace); + break; + } + + ace->fsm_state = ACE_FSM_STATE_REQ_COMPLETE; + break; + + case ACE_FSM_STATE_REQ_COMPLETE: + /* Complete the block request */ + blkdev_dequeue_request(ace->req); + end_that_request_last(ace->req, 1); + ace->req = NULL; + + /* Finished request; go to idle state */ + ace->fsm_state = ACE_FSM_STATE_IDLE; + break; + + default: + ace->fsm_state = ACE_FSM_STATE_IDLE; + break; + } +} + +static void ace_fsm_tasklet(unsigned long data) +{ + struct ace_device *ace = (void *)data; + unsigned long flags; + + spin_lock_irqsave(&ace->lock, flags); + + /* Loop over state machine until told to stop */ + ace->fsm_continue_flag = 1; + while (ace->fsm_continue_flag) + ace_fsm_dostate(ace); + + spin_unlock_irqrestore(&ace->lock, flags); +} + +static void ace_stall_timer(unsigned long data) +{ + struct ace_device *ace = (void *)data; + unsigned long flags; + + dev_warn(ace->dev, + "kicking stalled fsm; state=%i task=%i iter=%i dc=%i\n", + ace->fsm_state, ace->fsm_task, ace->fsm_iter_num, + ace->data_count); + spin_lock_irqsave(&ace->lock, flags); + + /* Rearm the stall timer *before* entering FSM (which may then + * delete the timer) */ + mod_timer(&ace->stall_timer, jiffies + HZ); + + /* Loop over state machine until told to stop */ + ace->fsm_continue_flag = 1; + while (ace->fsm_continue_flag) + ace_fsm_dostate(ace); + + spin_unlock_irqrestore(&ace->lock, flags); +} + +/* --------------------------------------------------------------------- + * Interrupt handling routines + */ +static int ace_interrupt_checkstate(struct ace_device *ace) +{ + u32 sreg = ace_in32(ace, ACE_STATUS); + u16 creg = ace_in(ace, ACE_CTRL); + + /* Check for error occurance */ + if ((sreg & (ACE_STATUS_CFGERROR | ACE_STATUS_CFCERROR)) && + (creg & ACE_CTRL_ERRORIRQ)) { + dev_err(ace->dev, "transfer failure\n"); + ace_dump_regs(ace); + return -EIO; + } + + return 0; +} + +static irqreturn_t ace_interrupt(int irq, void *dev_id) +{ + u16 creg; + struct ace_device *ace = dev_id; + + /* be safe and get the lock */ + spin_lock(&ace->lock); + ace->in_irq = 1; + + /* clear the interrupt */ + creg = ace_in(ace, ACE_CTRL); + ace_out(ace, ACE_CTRL, creg | ACE_CTRL_RESETIRQ); + ace_out(ace, ACE_CTRL, creg); + + /* check for IO failures */ + if (ace_interrupt_checkstate(ace)) + ace->data_result = -EIO; + + if (ace->fsm_task == 0) { + dev_err(ace->dev, + "spurious irq; stat=%.8x ctrl=%.8x cmd=%.4x\n", + ace_in32(ace, ACE_STATUS), ace_in32(ace, ACE_CTRL), + ace_in(ace, ACE_SECCNTCMD)); + dev_err(ace->dev, "fsm_task=%i fsm_state=%i data_count=%i\n", + ace->fsm_task, ace->fsm_state, ace->data_count); + } + + /* Loop over state machine until told to stop */ + ace->fsm_continue_flag = 1; + while (ace->fsm_continue_flag) + ace_fsm_dostate(ace); + + /* done with interrupt; drop the lock */ + ace->in_irq = 0; + spin_unlock(&ace->lock); + + return IRQ_HANDLED; +} + +/* --------------------------------------------------------------------- + * Block ops + */ +static void ace_request(request_queue_t * q) +{ + struct request *req; + struct ace_device *ace; + + req = ace_get_next_request(q); + + if (req) { + ace = req->rq_disk->private_data; + tasklet_schedule(&ace->fsm_tasklet); + } +} + +static int ace_media_changed(struct gendisk *gd) +{ + struct ace_device *ace = gd->private_data; + dev_dbg(ace->dev, "ace_media_changed(): %i\n", ace->media_change); + + return ace->media_change; +} + +static int ace_revalidate_disk(struct gendisk *gd) +{ + struct ace_device *ace = gd->private_data; + unsigned long flags; + + dev_dbg(ace->dev, "ace_revalidate_disk()\n"); + + if (ace->media_change) { + dev_dbg(ace->dev, "requesting cf id and scheduling tasklet\n"); + + spin_lock_irqsave(&ace->lock, flags); + ace->id_req_count++; + spin_unlock_irqrestore(&ace->lock, flags); + + tasklet_schedule(&ace->fsm_tasklet); + wait_for_completion(&ace->id_completion); + } + + dev_dbg(ace->dev, "revalidate complete\n"); + return ace->id_result; +} + +static int ace_open(struct inode *inode, struct file *filp) +{ + struct ace_device *ace = inode->i_bdev->bd_disk->private_data; + unsigned long flags; + + dev_dbg(ace->dev, "ace_open() users=%i\n", ace->users + 1); + + filp->private_data = ace; + spin_lock_irqsave(&ace->lock, flags); + ace->users++; + spin_unlock_irqrestore(&ace->lock, flags); + + check_disk_change(inode->i_bdev); + return 0; +} + +static int ace_release(struct inode *inode, struct file *filp) +{ + struct ace_device *ace = inode->i_bdev->bd_disk->private_data; + unsigned long flags; + u16 val; + + dev_dbg(ace->dev, "ace_release() users=%i\n", ace->users - 1); + + spin_lock_irqsave(&ace->lock, flags); + ace->users--; + if (ace->users == 0) { + val = ace_in(ace, ACE_CTRL); + ace_out(ace, ACE_CTRL, val & ~ACE_CTRL_LOCKREQ); + } + spin_unlock_irqrestore(&ace->lock, flags); + return 0; +} + +static int ace_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) +{ + struct ace_device *ace = inode->i_bdev->bd_disk->private_data; + struct hd_geometry __user *geo = (struct hd_geometry __user *)arg; + struct hd_geometry g; + dev_dbg(ace->dev, "ace_ioctl()\n"); + + switch (cmd) { + case HDIO_GETGEO: + g.heads = ace->cf_id.heads; + g.sectors = ace->cf_id.sectors; + g.cylinders = ace->cf_id.cyls; + g.start = 0; + return copy_to_user(geo, &g, sizeof(g)) ? -EFAULT : 0; + + default: + return -ENOTTY; + } + return -ENOTTY; +} + +static struct block_device_operations ace_fops = { + .owner = THIS_MODULE, + .open = ace_open, + .release = ace_release, + .media_changed = ace_media_changed, + .revalidate_disk = ace_revalidate_disk, + .ioctl = ace_ioctl, +}; + +/* -------------------------------------------------------------------- + * SystemACE device setup/teardown code + */ +static int __devinit ace_setup(struct ace_device *ace) +{ + u16 version; + u16 val; + + int rc; + + spin_lock_init(&ace->lock); + init_completion(&ace->id_completion); + + /* + * Map the device + */ + ace->baseaddr = ioremap(ace->physaddr, 0x80); + if (!ace->baseaddr) + goto err_ioremap; + + if (ace->irq != NO_IRQ) { + rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace); + if (rc) { + /* Failure - fall back to polled mode */ + dev_err(ace->dev, "request_irq failed\n"); + ace->irq = NO_IRQ; + } + } + + /* + * Initialize the state machine tasklet and stall timer + */ + tasklet_init(&ace->fsm_tasklet, ace_fsm_tasklet, (unsigned long)ace); + setup_timer(&ace->stall_timer, ace_stall_timer, (unsigned long)ace); + + /* + * Initialize the request queue + */ + ace->queue = blk_init_queue(ace_request, &ace->lock); + if (ace->queue == NULL) + goto err_blk_initq; + blk_queue_hardsect_size(ace->queue, 512); + + /* + * Allocate and initialize GD structure + */ + ace->gd = alloc_disk(ACE_NUM_MINORS); + if (!ace->gd) + goto err_alloc_disk; + + ace->gd->major = ace_major; + ace->gd->first_minor = ace->id * ACE_NUM_MINORS; + ace->gd->fops = &ace_fops; + ace->gd->queue = ace->queue; + ace->gd->private_data = ace; + snprintf(ace->gd->disk_name, 32, "xs%c", ace->id + 'a'); + + /* set bus width */ + if (ace->bus_width == 1) { + /* 0x0101 should work regardless of endianess */ + ace_out_le16(ace, ACE_BUSMODE, 0x0101); + + /* read it back to determine endianess */ + if (ace_in_le16(ace, ACE_BUSMODE) == 0x0001) + ace->reg_ops = &ace_reg_le16_ops; + else + ace->reg_ops = &ace_reg_be16_ops; + } else { + ace_out_8(ace, ACE_BUSMODE, 0x00); + ace->reg_ops = &ace_reg_8_ops; + } + + /* Make sure version register is sane */ + version = ace_in(ace, ACE_VERSION); + if ((version == 0) || (version == 0xFFFF)) + goto err_read; + + /* Put sysace in a sane state by clearing most control reg bits */ + ace_out(ace, ACE_CTRL, ACE_CTRL_FORCECFGMODE | + ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ); + + /* Enable interrupts */ + val = ace_in(ace, ACE_CTRL); + val |= ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ; + ace_out(ace, ACE_CTRL, val); + + /* Print the identification */ + dev_info(ace->dev, "Xilinx SystemACE revision %i.%i.%i\n", + (version >> 12) & 0xf, (version >> 8) & 0x0f, version & 0xff); + dev_dbg(ace->dev, "physaddr 0x%lx, mapped to 0x%p, irq=%i\n", + ace->physaddr, ace->baseaddr, ace->irq); + + ace->media_change = 1; + ace_revalidate_disk(ace->gd); + + /* Make the sysace device 'live' */ + add_disk(ace->gd); + + return 0; + + err_read: + put_disk(ace->gd); + err_alloc_disk: + blk_cleanup_queue(ace->queue); + err_blk_initq: + iounmap(ace->baseaddr); + if (ace->irq != NO_IRQ) + free_irq(ace->irq, ace); + err_ioremap: + printk(KERN_INFO "xsysace: error initializing device at 0x%lx\n", + ace->physaddr); + return -ENOMEM; +} + +static void __devexit ace_teardown(struct ace_device *ace) +{ + if (ace->gd) { + del_gendisk(ace->gd); + put_disk(ace->gd); + } + + if (ace->queue) + blk_cleanup_queue(ace->queue); + + tasklet_kill(&ace->fsm_tasklet); + + if (ace->irq != NO_IRQ) + free_irq(ace->irq, ace); + + iounmap(ace->baseaddr); +} + +/* --------------------------------------------------------------------- + * Platform Bus Support + */ + +static int __devinit ace_probe(struct device *device) +{ + struct platform_device *dev = to_platform_device(device); + struct ace_device *ace; + int i; + + dev_dbg(device, "ace_probe(%p)\n", device); + + /* + * Allocate the ace device structure + */ + ace = kzalloc(sizeof(struct ace_device), GFP_KERNEL); + if (!ace) + goto err_alloc; + + ace->dev = device; + ace->id = dev->id; + ace->irq = NO_IRQ; + + for (i = 0; i < dev->num_resources; i++) { + if (dev->resource[i].flags & IORESOURCE_MEM) + ace->physaddr = dev->resource[i].start; + if (dev->resource[i].flags & IORESOURCE_IRQ) + ace->irq = dev->resource[i].start; + } + + /* FIXME: Should get bus_width from the platform_device struct */ + ace->bus_width = 1; + + dev_set_drvdata(&dev->dev, ace); + + /* Call the bus-independant setup code */ + if (ace_setup(ace) != 0) + goto err_setup; + + return 0; + + err_setup: + dev_set_drvdata(&dev->dev, NULL); + kfree(ace); + err_alloc: + printk(KERN_ERR "xsysace: could not initialize device\n"); + return -ENOMEM; +} + +/* + * Platform bus remove() method + */ +static int __devexit ace_remove(struct device *device) +{ + struct ace_device *ace = dev_get_drvdata(device); + + dev_dbg(device, "ace_remove(%p)\n", device); + + if (ace) { + ace_teardown(ace); + kfree(ace); + } + + return 0; +} + +static struct device_driver ace_driver = { + .name = "xsysace", + .bus = &platform_bus_type, + .probe = ace_probe, + .remove = __devexit_p(ace_remove), +}; + +/* --------------------------------------------------------------------- + * Module init/exit routines + */ +static int __init ace_init(void) +{ + ace_major = register_blkdev(ace_major, "xsysace"); + if (ace_major <= 0) { + printk(KERN_WARNING "xsysace: register_blkdev() failed\n"); + return ace_major; + } + + pr_debug("Registering Xilinx SystemACE driver, major=%i\n", ace_major); + return driver_register(&ace_driver); +} + +static void __exit ace_exit(void) +{ + pr_debug("Unregistering Xilinx SystemACE driver\n"); + driver_unregister(&ace_driver); + unregister_blkdev(ace_major, "xsysace"); +} + +module_init(ace_init); +module_exit(ace_exit); diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c index 2abf94cc3137..e40fa98842e5 100644 --- a/drivers/block/z2ram.c +++ b/drivers/block/z2ram.c @@ -371,9 +371,7 @@ static void __exit z2_exit(void) { int i, j; blk_unregister_region(MKDEV(Z2RAM_MAJOR, 0), 256); - if ( unregister_blkdev( Z2RAM_MAJOR, DEVICE_NAME ) != 0 ) - printk( KERN_ERR DEVICE_NAME ": unregister of device failed\n"); - + unregister_blkdev(Z2RAM_MAJOR, DEVICE_NAME); del_gendisk(z2ram_gendisk); put_disk(z2ram_gendisk); blk_cleanup_queue(z2_queue); diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index ec9dc3d53f18..9e8f21410d2d 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -114,7 +114,7 @@ config COMPUTONE config ROCKETPORT tristate "Comtrol RocketPort support" - depends on SERIAL_NONSTANDARD + depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI) help This driver supports Comtrol RocketPort and RocketModem PCI boards. These boards provide 2, 4, 8, 16, or 32 high-speed serial ports or @@ -157,7 +157,7 @@ config CYZ_INTR config DIGIEPCA tristate "Digiboard Intelligent Async Support" - depends on SERIAL_NONSTANDARD + depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI) ---help--- This is a driver for Digi International's Xx, Xeve, and Xem series of cards which provide multiple serial ports. You would need @@ -213,8 +213,6 @@ config MOXA_SMARTIO_NEW This is upgraded (1.9.1) driver from original Moxa drivers with changes finally resulting in PCI probing. - Use at your own risk. - This driver can also be built as a module. The module will be called mxser_new. If you want to do that, say M here. @@ -354,7 +352,7 @@ config STALDRV config STALLION tristate "Stallion EasyIO or EC8/32 support" - depends on STALDRV && BROKEN_ON_SMP + depends on STALDRV && BROKEN_ON_SMP && (ISA || EISA || PCI) help If you have an EasyIO or EasyConnection 8/32 multiport Stallion card, then this is for you; say Y. Make sure to read @@ -365,7 +363,7 @@ config STALLION config ISTALLION tristate "Stallion EC8/64, ONboard, Brumby support" - depends on STALDRV && BROKEN_ON_SMP + depends on STALDRV && BROKEN_ON_SMP && (ISA || EISA || PCI) help If you have an EasyConnection 8/64, ONboard, Brumby or Stallion serial multiport card, say Y here. Make sure to read @@ -374,39 +372,6 @@ config ISTALLION To compile this driver as a module, choose M here: the module will be called istallion. -config SERIAL_DEC - bool "DECstation serial support" - depends on MACH_DECSTATION - default y - help - This selects whether you want to be asked about drivers for - DECstation serial ports. - - Note that the answer to this question won't directly affect the - kernel: saying N will just cause the configurator to skip all - the questions about DECstation serial ports. - -config SERIAL_DEC_CONSOLE - bool "Support for console on a DECstation serial port" - depends on SERIAL_DEC - default y - help - If you say Y here, it will be possible to use a serial port as the - system console (the system console is the device which receives all - kernel messages and warnings and which allows logins in single user - mode). Note that the firmware uses ttyS0 as the serial console on - the Maxine and ttyS2 on the others. - - If unsure, say Y. - -config ZS - bool "Z85C30 Serial Support" - depends on SERIAL_DEC - default y - help - Documentation on the Zilog 85C350 serial communications controller - is downloadable at <http://www.zilog.com/pdfs/serial/z85c30.pdf> - config A2232 tristate "Commodore A2232 serial support (EXPERIMENTAL)" depends on EXPERIMENTAL && ZORRO && BROKEN_ON_SMP @@ -639,6 +604,14 @@ config HVC_BEAT help Toshiba's Cell Reference Set Beat Console device driver +config HVC_XEN + bool "Xen Hypervisor Console support" + depends on XEN + select HVC_DRIVER + default y + help + Xen virtual console device driver + config HVCS tristate "IBM Hypervisor Virtual Console Server support" depends on PPC_PSERIES diff --git a/drivers/char/Makefile b/drivers/char/Makefile index f2996a95eb07..4e6f387fd189 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -42,12 +42,14 @@ obj-$(CONFIG_SYNCLINK_GT) += synclink_gt.o obj-$(CONFIG_N_HDLC) += n_hdlc.o obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o obj-$(CONFIG_SX) += sx.o generic_serial.o +obj-$(CONFIG_LGUEST_GUEST) += hvc_lguest.o obj-$(CONFIG_RIO) += rio/ generic_serial.o obj-$(CONFIG_HVC_CONSOLE) += hvc_vio.o hvsi.o obj-$(CONFIG_HVC_ISERIES) += hvc_iseries.o obj-$(CONFIG_HVC_RTAS) += hvc_rtas.o obj-$(CONFIG_HVC_BEAT) += hvc_beat.o obj-$(CONFIG_HVC_DRIVER) += hvc_console.o +obj-$(CONFIG_HVC_XEN) += hvc_xen.o obj-$(CONFIG_RAW_DRIVER) += raw.o obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o obj-$(CONFIG_MSPEC) += mspec.o diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 7b02bf1289a2..3d468f502d2d 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -1721,12 +1721,11 @@ static int get_async_struct(int line, struct async_struct **ret_info) *ret_info = sstate->info; return 0; } - info = kmalloc(sizeof(struct async_struct), GFP_KERNEL); + info = kzalloc(sizeof(struct async_struct), GFP_KERNEL); if (!info) { sstate->count--; return -ENOMEM; } - memset(info, 0, sizeof(struct async_struct)); #ifdef DECLARE_WAITQUEUE init_waitqueue_head(&info->open_wait); init_waitqueue_head(&info->close_wait); diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c index 179c7a3b6e75..ec116df919d9 100644 --- a/drivers/char/apm-emulation.c +++ b/drivers/char/apm-emulation.c @@ -20,6 +20,7 @@ #include <linux/sched.h> #include <linux/pm.h> #include <linux/apm-emulation.h> +#include <linux/freezer.h> #include <linux/device.h> #include <linux/kernel.h> #include <linux/list.h> @@ -329,13 +330,8 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) /* * Wait for the suspend/resume to complete. If there * are pending acknowledges, we wait here for them. - * - * Note: we need to ensure that the PM subsystem does - * not kick us out of the wait when it suspends the - * threads. */ flags = current->flags; - current->flags |= PF_NOFREEZE; wait_event(apm_suspend_waitqueue, as->suspend_state == SUSPEND_DONE); @@ -365,13 +361,8 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) /* * Wait for the suspend/resume to complete. If there * are pending acknowledges, we wait here for them. - * - * Note: we need to ensure that the PM subsystem does - * not kick us out of the wait when it suspends the - * threads. */ flags = current->flags; - current->flags |= PF_NOFREEZE; wait_event_interruptible(apm_suspend_waitqueue, as->suspend_state == SUSPEND_DONE); @@ -598,7 +589,6 @@ static int __init apm_init(void) kapmd_tsk = NULL; return ret; } - kapmd_tsk->flags |= PF_NOFREEZE; wake_up_process(kapmd_tsk); #ifdef CONFIG_PROC_FS diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index e04005b5f8a6..9e0adfe27c12 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -646,6 +646,7 @@ #include <linux/delay.h> #include <linux/spinlock.h> #include <linux/bitops.h> +#include <linux/firmware.h> #include <asm/system.h> #include <asm/io.h> @@ -680,6 +681,44 @@ static void cy_send_xchar(struct tty_struct *tty, char ch); #define STD_COM_FLAGS (0) +/* firmware stuff */ +#define ZL_MAX_BLOCKS 16 +#define DRIVER_VERSION 0x02010203 +#define RAM_SIZE 0x80000 + +#define Z_FPGA_LOADED(X) ((readl(&(X)->init_ctrl) & (1<<17)) != 0) + +enum zblock_type { + ZBLOCK_PRG = 0, + ZBLOCK_FPGA = 1 +}; + +struct zfile_header { + char name[64]; + char date[32]; + char aux[32]; + u32 n_config; + u32 config_offset; + u32 n_blocks; + u32 block_offset; + u32 reserved[9]; +} __attribute__ ((packed)); + +struct zfile_config { + char name[64]; + u32 mailbox; + u32 function; + u32 n_blocks; + u32 block_list[ZL_MAX_BLOCKS]; +} __attribute__ ((packed)); + +struct zfile_block { + u32 type; + u32 file_offset; + u32 ram_offset; + u32 size; +} __attribute__ ((packed)); + static struct tty_driver *cy_serial_driver; #ifdef CONFIG_ISA @@ -1851,11 +1890,11 @@ static void cyz_poll(unsigned long arg) struct cyclades_card *cinfo; struct cyclades_port *info; struct tty_struct *tty; - static struct FIRM_ID *firm_id; - static struct ZFW_CTRL *zfw_ctrl; - static struct BOARD_CTRL *board_ctrl; - static struct CH_CTRL *ch_ctrl; - static struct BUF_CTRL *buf_ctrl; + struct FIRM_ID __iomem *firm_id; + struct ZFW_CTRL __iomem *zfw_ctrl; + struct BOARD_CTRL __iomem *board_ctrl; + struct CH_CTRL __iomem *ch_ctrl; + struct BUF_CTRL __iomem *buf_ctrl; unsigned long expires = jiffies + HZ; int card, port; @@ -1999,7 +2038,6 @@ static int startup(struct cyclades_port *info) struct ZFW_CTRL __iomem *zfw_ctrl; struct BOARD_CTRL __iomem *board_ctrl; struct CH_CTRL __iomem *ch_ctrl; - int retval; base_addr = card->base_addr; @@ -2371,7 +2409,6 @@ block_til_ready(struct tty_struct *tty, struct file *filp, struct ZFW_CTRL __iomem *zfw_ctrl; struct BOARD_CTRL __iomem *board_ctrl; struct CH_CTRL __iomem *ch_ctrl; - int retval; base_addr = cinfo->base_addr; firm_id = base_addr + ID_ADDRESS; @@ -4429,10 +4466,10 @@ static void cy_hangup(struct tty_struct *tty) static int __devinit cy_init_card(struct cyclades_card *cinfo) { struct cyclades_port *info; - u32 mailbox; + u32 uninitialized_var(mailbox); unsigned int nports; unsigned short chip_number; - int index, port; + int uninitialized_var(index), port; spin_lock_init(&cinfo->card_lock); @@ -4735,17 +4772,295 @@ static int __init cy_detect_isa(void) } /* cy_detect_isa */ #ifdef CONFIG_PCI -static void __devinit plx_init(void __iomem * addr, __u32 initctl) +static inline int __devinit cyc_isfwstr(const char *str, unsigned int size) +{ + unsigned int a; + + for (a = 0; a < size && *str; a++, str++) + if (*str & 0x80) + return -EINVAL; + + for (; a < size; a++, str++) + if (*str) + return -EINVAL; + + return 0; +} + +static inline void __devinit cyz_fpga_copy(void __iomem *fpga, u8 *data, + unsigned int size) +{ + for (; size > 0; size--) { + cy_writel(fpga, *data++); + udelay(10); + } +} + +static void __devinit plx_init(struct pci_dev *pdev, int irq, + struct RUNTIME_9060 __iomem *addr) { /* Reset PLX */ - cy_writel(addr + initctl, readl(addr + initctl) | 0x40000000); + cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) | 0x40000000); udelay(100L); - cy_writel(addr + initctl, readl(addr + initctl) & ~0x40000000); + cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) & ~0x40000000); /* Reload Config. Registers from EEPROM */ - cy_writel(addr + initctl, readl(addr + initctl) | 0x20000000); + cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) | 0x20000000); udelay(100L); - cy_writel(addr + initctl, readl(addr + initctl) & ~0x20000000); + cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) & ~0x20000000); + + /* For some yet unknown reason, once the PLX9060 reloads the EEPROM, + * the IRQ is lost and, thus, we have to re-write it to the PCI config. + * registers. This will remain here until we find a permanent fix. + */ + pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, irq); +} + +static int __devinit __cyz_load_fw(const struct firmware *fw, + const char *name, const u32 mailbox, void __iomem *base, + void __iomem *fpga) +{ + void *ptr = fw->data; + struct zfile_header *h = ptr; + struct zfile_config *c, *cs; + struct zfile_block *b, *bs; + unsigned int a, tmp, len = fw->size; +#define BAD_FW KERN_ERR "Bad firmware: " + if (len < sizeof(*h)) { + printk(BAD_FW "too short: %u<%zu\n", len, sizeof(*h)); + return -EINVAL; + } + + cs = ptr + h->config_offset; + bs = ptr + h->block_offset; + + if ((void *)(cs + h->n_config) > ptr + len || + (void *)(bs + h->n_blocks) > ptr + len) { + printk(BAD_FW "too short"); + return -EINVAL; + } + + if (cyc_isfwstr(h->name, sizeof(h->name)) || + cyc_isfwstr(h->date, sizeof(h->date))) { + printk(BAD_FW "bad formatted header string\n"); + return -EINVAL; + } + + if (strncmp(name, h->name, sizeof(h->name))) { + printk(BAD_FW "bad name '%s' (expected '%s')\n", h->name, name); + return -EINVAL; + } + + tmp = 0; + for (c = cs; c < cs + h->n_config; c++) { + for (a = 0; a < c->n_blocks; a++) + if (c->block_list[a] > h->n_blocks) { + printk(BAD_FW "bad block ref number in cfgs\n"); + return -EINVAL; + } + if (c->mailbox == mailbox && c->function == 0) /* 0 is normal */ + tmp++; + } + if (!tmp) { + printk(BAD_FW "nothing appropriate\n"); + return -EINVAL; + } + + for (b = bs; b < bs + h->n_blocks; b++) + if (b->file_offset + b->size > len) { + printk(BAD_FW "bad block data offset\n"); + return -EINVAL; + } + + /* everything is OK, let's seek'n'load it */ + for (c = cs; c < cs + h->n_config; c++) + if (c->mailbox == mailbox && c->function == 0) + break; + + for (a = 0; a < c->n_blocks; a++) { + b = &bs[c->block_list[a]]; + if (b->type == ZBLOCK_FPGA) { + if (fpga != NULL) + cyz_fpga_copy(fpga, ptr + b->file_offset, + b->size); + } else { + if (base != NULL) + memcpy_toio(base + b->ram_offset, + ptr + b->file_offset, b->size); + } + } +#undef BAD_FW + return 0; +} + +static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr, + struct RUNTIME_9060 __iomem *ctl_addr, int irq) +{ + const struct firmware *fw; + struct FIRM_ID __iomem *fid = base_addr + ID_ADDRESS; + struct CUSTOM_REG __iomem *cust = base_addr; + struct ZFW_CTRL __iomem *pt_zfwctrl; + void __iomem *tmp; + u32 mailbox, status; + unsigned int i; + int retval; + + retval = request_firmware(&fw, "cyzfirm.bin", &pdev->dev); + if (retval) { + dev_err(&pdev->dev, "can't get firmware\n"); + goto err; + } + + /* Check whether the firmware is already loaded and running. If + positive, skip this board */ + if (Z_FPGA_LOADED(ctl_addr) && readl(&fid->signature) == ZFIRM_ID) { + u32 cntval = readl(base_addr + 0x190); + + udelay(100); + if (cntval != readl(base_addr + 0x190)) { + /* FW counter is working, FW is running */ + dev_dbg(&pdev->dev, "Cyclades-Z FW already loaded. " + "Skipping board.\n"); + retval = 0; + goto err_rel; + } + } + + /* start boot */ + cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) & + ~0x00030800UL); + + mailbox = readl(&ctl_addr->mail_box_0); + + if (mailbox == 0 || Z_FPGA_LOADED(ctl_addr)) { + /* stops CPU and set window to beginning of RAM */ + cy_writel(&ctl_addr->loc_addr_base, WIN_CREG); + cy_writel(&cust->cpu_stop, 0); + cy_writel(&ctl_addr->loc_addr_base, WIN_RAM); + udelay(100); + } + + plx_init(pdev, irq, ctl_addr); + + if (mailbox != 0) { + /* load FPGA */ + retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, NULL, + base_addr); + if (retval) + goto err_rel; + if (!Z_FPGA_LOADED(ctl_addr)) { + dev_err(&pdev->dev, "fw upload successful, but fw is " + "not loaded\n"); + goto err_rel; + } + } + + /* stops CPU and set window to beginning of RAM */ + cy_writel(&ctl_addr->loc_addr_base, WIN_CREG); + cy_writel(&cust->cpu_stop, 0); + cy_writel(&ctl_addr->loc_addr_base, WIN_RAM); + udelay(100); + + /* clear memory */ + for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++) + cy_writeb(tmp, 255); + if (mailbox != 0) { + /* set window to last 512K of RAM */ + cy_writel(&ctl_addr->loc_addr_base, WIN_RAM + RAM_SIZE); + //sleep(1); + for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++) + cy_writeb(tmp, 255); + /* set window to beginning of RAM */ + cy_writel(&ctl_addr->loc_addr_base, WIN_RAM); + //sleep(1); + } + + retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, base_addr, NULL); + release_firmware(fw); + if (retval) + goto err; + + /* finish boot and start boards */ + cy_writel(&ctl_addr->loc_addr_base, WIN_CREG); + cy_writel(&cust->cpu_start, 0); + cy_writel(&ctl_addr->loc_addr_base, WIN_RAM); + i = 0; + while ((status = readl(&fid->signature)) != ZFIRM_ID && i++ < 40) + msleep(100); + if (status != ZFIRM_ID) { + if (status == ZFIRM_HLT) { + dev_err(&pdev->dev, "you need an external power supply " + "for this number of ports. Firmware halted and " + "board reset.\n"); + retval = -EIO; + goto err; + } + dev_warn(&pdev->dev, "fid->signature = 0x%x... Waiting " + "some more time\n", status); + while ((status = readl(&fid->signature)) != ZFIRM_ID && + i++ < 200) + msleep(100); + if (status != ZFIRM_ID) { + dev_err(&pdev->dev, "Board not started in 20 seconds! " + "Giving up. (fid->signature = 0x%x)\n", + status); + dev_info(&pdev->dev, "*** Warning ***: if you are " + "upgrading the FW, please power cycle the " + "system before loading the new FW to the " + "Cyclades-Z.\n"); + + if (Z_FPGA_LOADED(ctl_addr)) + plx_init(pdev, irq, ctl_addr); + + retval = -EIO; + goto err; + } + dev_dbg(&pdev->dev, "Firmware started after %d seconds.\n", + i / 10); + } + pt_zfwctrl = base_addr + readl(&fid->zfwctrl_addr); + + dev_dbg(&pdev->dev, "fid=> %p, zfwctrl_addr=> %x, npt_zfwctrl=> %p\n", + base_addr + ID_ADDRESS, readl(&fid->zfwctrl_addr), + base_addr + readl(&fid->zfwctrl_addr)); + + dev_info(&pdev->dev, "Cyclades-Z FW loaded: version = %x, ports = %u\n", + readl(&pt_zfwctrl->board_ctrl.fw_version), + readl(&pt_zfwctrl->board_ctrl.n_channel)); + + if (readl(&pt_zfwctrl->board_ctrl.n_channel) == 0) { + dev_warn(&pdev->dev, "no Cyclades-Z ports were found. Please " + "check the connection between the Z host card and the " + "serial expanders.\n"); + + if (Z_FPGA_LOADED(ctl_addr)) + plx_init(pdev, irq, ctl_addr); + + dev_info(&pdev->dev, "Null number of ports detected. Board " + "reset.\n"); + retval = 0; + goto err; + } + + cy_writel(&pt_zfwctrl->board_ctrl.op_system, C_OS_LINUX); + cy_writel(&pt_zfwctrl->board_ctrl.dr_version, DRIVER_VERSION); + + /* + Early firmware failed to start looking for commands. + This enables firmware interrupts for those commands. + */ + cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) | + (1 << 17)); + cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) | + 0x00030800UL); + + plx_init(pdev, irq, ctl_addr); + + return 0; +err_rel: + release_firmware(fw); +err: + return retval; } static int __devinit cy_pci_probe(struct pci_dev *pdev, @@ -4827,16 +5142,9 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, } /* Disable interrupts on the PLX before resetting it */ - cy_writew(addr0 + 0x68, - readw(addr0 + 0x68) & ~0x0900); + cy_writew(addr0 + 0x68, readw(addr0 + 0x68) & ~0x0900); - plx_init(addr0, 0x6c); - /* For some yet unknown reason, once the PLX9060 reloads - the EEPROM, the IRQ is lost and, thus, we have to - re-write it to the PCI config. registers. - This will remain here until we find a permanent - fix. */ - pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, irq); + plx_init(pdev, irq, addr0); mailbox = (u32)readl(&ctl_addr->mail_box_0); @@ -4877,6 +5185,9 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, if ((mailbox == ZO_V1) || (mailbox == ZO_V2)) cy_writel(addr2 + ID_ADDRESS, 0L); + retval = cyz_load_fw(pdev, addr2, addr0, irq); + if (retval) + goto err_unmap; /* This must be a Cyclades-8Zo/PCI. The extendable version will have a different device_id and will be allocated its maximum number of ports. */ @@ -4953,15 +5264,7 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev, case PLX_9060: case PLX_9080: default: /* Old boards, use PLX_9060 */ - - plx_init(addr0, 0x6c); - /* For some yet unknown reason, once the PLX9060 reloads - the EEPROM, the IRQ is lost and, thus, we have to - re-write it to the PCI config. registers. - This will remain here until we find a permanent - fix. */ - pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, irq); - + plx_init(pdev, irq, addr0); cy_writew(addr0 + 0x68, readw(addr0 + 0x68) | 0x0900); break; } diff --git a/drivers/char/decserial.c b/drivers/char/decserial.c deleted file mode 100644 index 8ea2bea2b183..000000000000 --- a/drivers/char/decserial.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * sercons.c - * choose the right serial device at boot time - * - * triemer 6-SEP-1998 - * sercons.c is designed to allow the three different kinds - * of serial devices under the decstation world to co-exist - * in the same kernel. The idea here is to abstract - * the pieces of the drivers that are common to this file - * so that they do not clash at compile time and runtime. - * - * HK 16-SEP-1998 v0.002 - * removed the PROM console as this is not a real serial - * device. Added support for PROM console in drivers/char/tty_io.c - * instead. Although it may work to enable more than one - * console device I strongly recommend to use only one. - */ - -#include <linux/init.h> -#include <asm/dec/machtype.h> - -#ifdef CONFIG_ZS -extern int zs_init(void); -#endif - -#ifdef CONFIG_SERIAL_CONSOLE - -#ifdef CONFIG_ZS -extern void zs_serial_console_init(void); -#endif - -#endif - -/* rs_init - starts up the serial interface - - handle normal case of starting up the serial interface */ - -#ifdef CONFIG_SERIAL - -int __init rs_init(void) -{ -#ifdef CONFIG_ZS - if (IOASIC) - return zs_init(); -#endif - return -ENXIO; -} - -__initcall(rs_init); - -#endif - -#ifdef CONFIG_SERIAL_CONSOLE - -/* serial_console_init handles the special case of starting - * up the console on the serial port - */ -static int __init decserial_console_init(void) -{ -#ifdef CONFIG_ZS - if (IOASIC) - zs_serial_console_init(); -#endif - return 0; -} -console_initcall(decserial_console_init); - -#endif diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c index 9138b49e676e..ee83ff9efed6 100644 --- a/drivers/char/drm/drm_stub.c +++ b/drivers/char/drm/drm_stub.c @@ -72,6 +72,8 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev, mutex_init(&dev->struct_mutex); mutex_init(&dev->ctxlist_mutex); + idr_init(&dev->drw_idr); + dev->pdev = pdev; dev->pci_device = pdev->device; dev->pci_vendor = pdev->vendor; diff --git a/drivers/char/drm/sis_mm.c b/drivers/char/drm/sis_mm.c index 0580fa33cb77..441bbdbf1510 100644 --- a/drivers/char/drm/sis_mm.c +++ b/drivers/char/drm/sis_mm.c @@ -94,7 +94,7 @@ static int sis_fb_init(DRM_IOCTL_ARGS) mutex_lock(&dev->struct_mutex); #if defined(CONFIG_FB_SIS) { - drm_sman_mm_t sman_mm; + struct drm_sman_mm sman_mm; sman_mm.private = (void *)0xFFFFFFFF; sman_mm.allocate = sis_sman_mm_allocate; sman_mm.free = sis_sman_mm_free; diff --git a/drivers/char/drm/via_dmablit.c b/drivers/char/drm/via_dmablit.c index fdb8609dd76f..832de1d9ba7e 100644 --- a/drivers/char/drm/via_dmablit.c +++ b/drivers/char/drm/via_dmablit.c @@ -273,10 +273,9 @@ via_alloc_desc_pages(drm_via_sg_info_t *vsg) vsg->num_desc_pages = (vsg->num_desc + vsg->descriptors_per_page - 1) / vsg->descriptors_per_page; - if (NULL == (vsg->desc_pages = kmalloc(sizeof(void *) * vsg->num_desc_pages, GFP_KERNEL))) + if (NULL == (vsg->desc_pages = kcalloc(vsg->num_desc_pages, sizeof(void *), GFP_KERNEL))) return DRM_ERR(ENOMEM); - memset(vsg->desc_pages, 0, sizeof(void *) * vsg->num_desc_pages); vsg->state = dr_via_desc_pages_alloc; for (i=0; i<vsg->num_desc_pages; ++i) { if (NULL == (vsg->desc_pages[i] = diff --git a/drivers/char/esp.c b/drivers/char/esp.c index 74cd5118af57..2e7ae42a5503 100644 --- a/drivers/char/esp.c +++ b/drivers/char/esp.c @@ -2459,7 +2459,7 @@ static int __init espserial_init(void) return 1; } - info = kmalloc(sizeof(struct esp_struct), GFP_KERNEL); + info = kzalloc(sizeof(struct esp_struct), GFP_KERNEL); if (!info) { @@ -2469,7 +2469,6 @@ static int __init espserial_init(void) return 1; } - memset((void *)info, 0, sizeof(struct esp_struct)); spin_lock_init(&info->lock); /* rx_trigger, tx_trigger are needed by autoconfig */ info->config.rx_trigger = rx_trigger; @@ -2527,7 +2526,7 @@ static int __init espserial_init(void) if (!dma) info->stat_flags |= ESP_STAT_NEVER_DMA; - info = kmalloc(sizeof(struct esp_struct), GFP_KERNEL); + info = kzalloc(sizeof(struct esp_struct), GFP_KERNEL); if (!info) { printk(KERN_ERR "Couldn't allocate memory for esp serial device information\n"); @@ -2536,7 +2535,6 @@ static int __init espserial_init(void) return 0; } - memset((void *)info, 0, sizeof(struct esp_struct)); /* rx_trigger, tx_trigger are needed by autoconfig */ info->config.rx_trigger = rx_trigger; info->config.tx_trigger = tx_trigger; diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index b3ab42e0dd4a..83c1151ec7a2 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -679,6 +679,7 @@ static int khvcd(void *unused) int poll_mask; struct hvc_struct *hp; + set_freezable(); __set_current_state(TASK_RUNNING); do { poll_mask = 0; diff --git a/drivers/char/hvc_lguest.c b/drivers/char/hvc_lguest.c new file mode 100644 index 000000000000..e7b889e404a7 --- /dev/null +++ b/drivers/char/hvc_lguest.c @@ -0,0 +1,102 @@ +/* Simple console for lguest. + * + * Copyright (C) 2006 Rusty Russell, IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/err.h> +#include <linux/init.h> +#include <linux/lguest_bus.h> +#include "hvc_console.h" + +static char inbuf[256]; +static struct lguest_dma cons_input = { .used_len = 0, + .addr[0] = __pa(inbuf), + .len[0] = sizeof(inbuf), + .len[1] = 0 }; + +static int put_chars(u32 vtermno, const char *buf, int count) +{ + struct lguest_dma dma; + + /* FIXME: what if it's over a page boundary? */ + dma.len[0] = count; + dma.len[1] = 0; + dma.addr[0] = __pa(buf); + + lguest_send_dma(LGUEST_CONSOLE_DMA_KEY, &dma); + return count; +} + +static int get_chars(u32 vtermno, char *buf, int count) +{ + static int cons_offset; + + if (!cons_input.used_len) + return 0; + + if (cons_input.used_len - cons_offset < count) + count = cons_input.used_len - cons_offset; + + memcpy(buf, inbuf + cons_offset, count); + cons_offset += count; + if (cons_offset == cons_input.used_len) { + cons_offset = 0; + cons_input.used_len = 0; + } + return count; +} + +static struct hv_ops lguest_cons = { + .get_chars = get_chars, + .put_chars = put_chars, +}; + +static int __init cons_init(void) +{ + if (strcmp(paravirt_ops.name, "lguest") != 0) + return 0; + + return hvc_instantiate(0, 0, &lguest_cons); +} +console_initcall(cons_init); + +static int lguestcons_probe(struct lguest_device *lgdev) +{ + int err; + + lgdev->private = hvc_alloc(0, lgdev_irq(lgdev), &lguest_cons, 256); + if (IS_ERR(lgdev->private)) + return PTR_ERR(lgdev->private); + + err = lguest_bind_dma(LGUEST_CONSOLE_DMA_KEY, &cons_input, 1, + lgdev_irq(lgdev)); + if (err) + printk("lguest console: failed to bind buffer.\n"); + return err; +} + +static struct lguest_driver lguestcons_drv = { + .name = "lguestcons", + .owner = THIS_MODULE, + .device_type = LGUEST_DEVICE_T_CONSOLE, + .probe = lguestcons_probe, +}; + +static int __init hvc_lguest_init(void) +{ + return register_lguest_driver(&lguestcons_drv); +} +module_init(hvc_lguest_init); diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c new file mode 100644 index 000000000000..dd68f8541c2d --- /dev/null +++ b/drivers/char/hvc_xen.c @@ -0,0 +1,159 @@ +/* + * xen console driver interface to hvc_console.c + * + * (c) 2007 Gerd Hoffmann <kraxel@suse.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/types.h> + +#include <asm/xen/hypervisor.h> +#include <xen/page.h> +#include <xen/events.h> +#include <xen/interface/io/console.h> +#include <xen/hvc-console.h> + +#include "hvc_console.h" + +#define HVC_COOKIE 0x58656e /* "Xen" in hex */ + +static struct hvc_struct *hvc; +static int xencons_irq; + +/* ------------------------------------------------------------------ */ + +static inline struct xencons_interface *xencons_interface(void) +{ + return mfn_to_virt(xen_start_info->console.domU.mfn); +} + +static inline void notify_daemon(void) +{ + /* Use evtchn: this is called early, before irq is set up. */ + notify_remote_via_evtchn(xen_start_info->console.domU.evtchn); +} + +static int write_console(uint32_t vtermno, const char *data, int len) +{ + struct xencons_interface *intf = xencons_interface(); + XENCONS_RING_IDX cons, prod; + int sent = 0; + + cons = intf->out_cons; + prod = intf->out_prod; + mb(); /* update queue values before going on */ + BUG_ON((prod - cons) > sizeof(intf->out)); + + while ((sent < len) && ((prod - cons) < sizeof(intf->out))) + intf->out[MASK_XENCONS_IDX(prod++, intf->out)] = data[sent++]; + + wmb(); /* write ring before updating pointer */ + intf->out_prod = prod; + + notify_daemon(); + return sent; +} + +static int read_console(uint32_t vtermno, char *buf, int len) +{ + struct xencons_interface *intf = xencons_interface(); + XENCONS_RING_IDX cons, prod; + int recv = 0; + + cons = intf->in_cons; + prod = intf->in_prod; + mb(); /* get pointers before reading ring */ + BUG_ON((prod - cons) > sizeof(intf->in)); + + while (cons != prod && recv < len) + buf[recv++] = intf->in[MASK_XENCONS_IDX(cons++, intf->in)]; + + mb(); /* read ring before consuming */ + intf->in_cons = cons; + + notify_daemon(); + return recv; +} + +static struct hv_ops hvc_ops = { + .get_chars = read_console, + .put_chars = write_console, +}; + +static int __init xen_init(void) +{ + struct hvc_struct *hp; + + if (!is_running_on_xen()) + return 0; + + xencons_irq = bind_evtchn_to_irq(xen_start_info->console.domU.evtchn); + if (xencons_irq < 0) + xencons_irq = 0 /* NO_IRQ */; + hp = hvc_alloc(HVC_COOKIE, xencons_irq, &hvc_ops, 256); + if (IS_ERR(hp)) + return PTR_ERR(hp); + + hvc = hp; + return 0; +} + +static void __exit xen_fini(void) +{ + if (hvc) + hvc_remove(hvc); +} + +static int xen_cons_init(void) +{ + if (!is_running_on_xen()) + return 0; + + hvc_instantiate(HVC_COOKIE, 0, &hvc_ops); + return 0; +} + +module_init(xen_init); +module_exit(xen_fini); +console_initcall(xen_cons_init); + +static void xenboot_write_console(struct console *console, const char *string, + unsigned len) +{ + unsigned int linelen, off = 0; + const char *pos; + + while (off < len && NULL != (pos = strchr(string+off, '\n'))) { + linelen = pos-string+off; + if (off + linelen > len) + break; + write_console(0, string+off, linelen); + write_console(0, "\r\n", 2); + off += linelen + 1; + } + if (off < len) + write_console(0, string+off, len-off); +} + +struct console xenboot_console = { + .name = "xenboot", + .write = xenboot_write_console, + .flags = CON_PRINTBUFFER | CON_BOOT, +}; diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c index 207f7343ba60..17f96e04266f 100644 --- a/drivers/char/hvcs.c +++ b/drivers/char/hvcs.c @@ -784,12 +784,10 @@ static int __devinit hvcs_probe( return -EFAULT; } - hvcsd = kmalloc(sizeof(*hvcsd), GFP_KERNEL); + hvcsd = kzalloc(sizeof(*hvcsd), GFP_KERNEL); if (!hvcsd) return -ENODEV; - /* hvcsd->tty is zeroed out with the memset */ - memset(hvcsd, 0x00, sizeof(*hvcsd)); spin_lock_init(&hvcsd->lock); /* Automatically incs the refcount the first time */ diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 83c7258d3580..6005b5225772 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -425,9 +425,7 @@ cleanup_module(void) printk(KERN_ERR "IP2: failed to unregister tty driver (%d)\n", err); } put_tty_driver(ip2_tty_driver); - if ( ( err = unregister_chrdev ( IP2_IPL_MAJOR, pcIpl ) ) ) { - printk(KERN_ERR "IP2: failed to unregister IPL driver (%d)\n", err); - } + unregister_chrdev(IP2_IPL_MAJOR, pcIpl); remove_proc_entry("ip2mem", &proc_root); // free memory diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index b5df7e61aeb2..6a01dd9e43f8 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -2639,10 +2639,9 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers, return -ENODEV; } - intf = kmalloc(sizeof(*intf), GFP_KERNEL); + intf = kzalloc(sizeof(*intf), GFP_KERNEL); if (!intf) return -ENOMEM; - memset(intf, 0, sizeof(*intf)); intf->ipmi_version_major = ipmi_version_major(device_id); intf->ipmi_version_minor = ipmi_version_minor(device_id); diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index 761f77740d67..77a7a4a06620 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -171,9 +171,6 @@ static struct pci_driver isicom_driver = { static int prev_card = 3; /* start servicing isi_card[0] */ static struct tty_driver *isicom_normal; -static DECLARE_COMPLETION(isi_timerdone); -static char re_schedule = 1; - static void isicom_tx(unsigned long _data); static void isicom_start(struct tty_struct *tty); @@ -187,7 +184,7 @@ static signed char linuxb_to_isib[] = { struct isi_board { unsigned long base; - unsigned char irq; + int irq; unsigned char port_count; unsigned short status; unsigned short port_status; /* each bit for each port */ @@ -227,7 +224,7 @@ static struct isi_port isi_ports[PORT_COUNT]; * it wants to talk. */ -static inline int WaitTillCardIsFree(u16 base) +static inline int WaitTillCardIsFree(unsigned long base) { unsigned int count = 0; unsigned int a = in_atomic(); /* do we run under spinlock? */ @@ -243,17 +240,18 @@ static inline int WaitTillCardIsFree(u16 base) static int lock_card(struct isi_board *card) { - char retries; unsigned long base = card->base; + unsigned int retries, a; - for (retries = 0; retries < 100; retries++) { + for (retries = 0; retries < 10; retries++) { spin_lock_irqsave(&card->card_lock, card->flags); - if (inw(base + 0xe) & 0x1) { - return 1; - } else { - spin_unlock_irqrestore(&card->card_lock, card->flags); - udelay(1000); /* 1ms */ + for (a = 0; a < 10; a++) { + if (inw(base + 0xe) & 0x1) + return 1; + udelay(10); } + spin_unlock_irqrestore(&card->card_lock, card->flags); + msleep(10); } printk(KERN_WARNING "ISICOM: Failed to lock Card (0x%lx)\n", card->base); @@ -261,23 +259,6 @@ static int lock_card(struct isi_board *card) return 0; /* Failed to acquire the card! */ } -static int lock_card_at_interrupt(struct isi_board *card) -{ - unsigned char retries; - unsigned long base = card->base; - - for (retries = 0; retries < 200; retries++) { - spin_lock_irqsave(&card->card_lock, card->flags); - - if (inw(base + 0xe) & 0x1) - return 1; - else - spin_unlock_irqrestore(&card->card_lock, card->flags); - } - /* Failing in interrupt is an acceptable event */ - return 0; /* Failed to acquire the card! */ -} - static void unlock_card(struct isi_board *card) { spin_unlock_irqrestore(&card->card_lock, card->flags); @@ -415,7 +396,9 @@ static inline int __isicom_paranoia_check(struct isi_port const *port, static void isicom_tx(unsigned long _data) { - short count = (BOARD_COUNT-1), card, base; + unsigned long flags, base; + unsigned int retries; + short count = (BOARD_COUNT-1), card; short txcount, wrd, residue, word_count, cnt; struct isi_port *port; struct tty_struct *tty; @@ -435,32 +418,34 @@ static void isicom_tx(unsigned long _data) count = isi_card[card].port_count; port = isi_card[card].ports; base = isi_card[card].base; + + spin_lock_irqsave(&isi_card[card].card_lock, flags); + for (retries = 0; retries < 100; retries++) { + if (inw(base + 0xe) & 0x1) + break; + udelay(2); + } + if (retries >= 100) + goto unlock; + for (;count > 0;count--, port++) { - if (!lock_card_at_interrupt(&isi_card[card])) - continue; /* port not active or tx disabled to force flow control */ if (!(port->flags & ASYNC_INITIALIZED) || !(port->status & ISI_TXOK)) - unlock_card(&isi_card[card]); continue; tty = port->tty; - - if (tty == NULL) { - unlock_card(&isi_card[card]); + if (tty == NULL) continue; - } txcount = min_t(short, TX_SIZE, port->xmit_cnt); - if (txcount <= 0 || tty->stopped || tty->hw_stopped) { - unlock_card(&isi_card[card]); + if (txcount <= 0 || tty->stopped || tty->hw_stopped) continue; - } - if (!(inw(base + 0x02) & (1 << port->channel))) { - unlock_card(&isi_card[card]); + + if (!(inw(base + 0x02) & (1 << port->channel))) continue; - } + pr_dbg("txing %d bytes, port%d.\n", txcount, port->channel + 1); outw((port->channel << isi_card[card].shift_count) | txcount, @@ -508,16 +493,12 @@ static void isicom_tx(unsigned long _data) port->status &= ~ISI_TXOK; if (port->xmit_cnt <= WAKEUP_CHARS) tty_wakeup(tty); - unlock_card(&isi_card[card]); } +unlock: + spin_unlock_irqrestore(&isi_card[card].card_lock, flags); /* schedule another tx for hopefully in about 10ms */ sched_again: - if (!re_schedule) { - complete(&isi_timerdone); - return; - } - mod_timer(&tx, jiffies + msecs_to_jiffies(10)); } @@ -1749,17 +1730,13 @@ static unsigned int card_count; static int __devinit isicom_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { - unsigned int ioaddr, signature, index; + unsigned int signature, index; int retval = -EPERM; - u8 pciirq; struct isi_board *board = NULL; if (card_count >= BOARD_COUNT) goto err; - ioaddr = pci_resource_start(pdev, 3); - /* i.e at offset 0x1c in the PCI configuration register space. */ - pciirq = pdev->irq; dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device); /* allot the first empty slot in the array */ @@ -1770,8 +1747,8 @@ static int __devinit isicom_probe(struct pci_dev *pdev, } board->index = index; - board->base = ioaddr; - board->irq = pciirq; + board->base = pci_resource_start(pdev, 3); + board->irq = pdev->irq; card_count++; pci_set_drvdata(pdev, board); @@ -1901,9 +1878,7 @@ error: static void __exit isicom_exit(void) { - re_schedule = 0; - - wait_for_completion_timeout(&isi_timerdone, HZ); + del_timer_sync(&tx); pci_unregister_driver(&isicom_driver); tty_unregister_driver(isicom_normal); diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index 809409922996..3c66f402f9d7 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -2163,14 +2163,10 @@ static void __stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigne cdkhdr_t __iomem *hdrp; cdkctrl_t __iomem *cp; unsigned char __iomem *bits; - unsigned long flags; - - spin_lock_irqsave(&brd_lock, flags); if (test_bit(ST_CMDING, &portp->state)) { printk(KERN_ERR "STALLION: command already busy, cmd=%x!\n", (int) cmd); - spin_unlock_irqrestore(&brd_lock, flags); return; } @@ -2191,7 +2187,6 @@ static void __stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigne writeb(readb(bits) | portp->portbit, bits); set_bit(ST_CMDING, &portp->state); EBRDDISABLE(brdp); - spin_unlock_irqrestore(&brd_lock, flags); } static void stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback) @@ -3215,13 +3210,13 @@ static int stli_initecp(struct stlibrd *brdp) goto err; } + brdp->iosize = ECP_IOSIZE; + if (!request_region(brdp->iobase, brdp->iosize, "istallion")) { retval = -EIO; goto err; } - brdp->iosize = ECP_IOSIZE; - /* * Based on the specific board type setup the common vars to access * and enable shared memory. Set all board specific information now diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c index 57f9115a456c..7ee5d9444926 100644 --- a/drivers/char/mbcs.c +++ b/drivers/char/mbcs.c @@ -39,14 +39,14 @@ #else #define DBG(fmt...) #endif -int mbcs_major; +static int mbcs_major; -LIST_HEAD(soft_list); +static LIST_HEAD(soft_list); /* * file operations */ -const struct file_operations mbcs_ops = { +static const struct file_operations mbcs_ops = { .open = mbcs_open, .llseek = mbcs_sram_llseek, .read = mbcs_sram_read, @@ -377,7 +377,7 @@ dmaread_exit: return rv; } -int mbcs_open(struct inode *ip, struct file *fp) +static int mbcs_open(struct inode *ip, struct file *fp) { struct mbcs_soft *soft; int minor; @@ -394,7 +394,7 @@ int mbcs_open(struct inode *ip, struct file *fp) return -ENODEV; } -ssize_t mbcs_sram_read(struct file * fp, char __user *buf, size_t len, loff_t * off) +static ssize_t mbcs_sram_read(struct file * fp, char __user *buf, size_t len, loff_t * off) { struct cx_dev *cx_dev = fp->private_data; struct mbcs_soft *soft = cx_dev->soft; @@ -418,7 +418,7 @@ ssize_t mbcs_sram_read(struct file * fp, char __user *buf, size_t len, loff_t * return rv; } -ssize_t +static ssize_t mbcs_sram_write(struct file * fp, const char __user *buf, size_t len, loff_t * off) { struct cx_dev *cx_dev = fp->private_data; @@ -443,7 +443,7 @@ mbcs_sram_write(struct file * fp, const char __user *buf, size_t len, loff_t * o return rv; } -loff_t mbcs_sram_llseek(struct file * filp, loff_t off, int whence) +static loff_t mbcs_sram_llseek(struct file * filp, loff_t off, int whence) { loff_t newpos; @@ -491,7 +491,7 @@ static void mbcs_gscr_pioaddr_set(struct mbcs_soft *soft) soft->gscr_addr = mbcs_pioaddr(soft, MBCS_GSCR_START); } -int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma) +static int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma) { struct cx_dev *cx_dev = fp->private_data; struct mbcs_soft *soft = cx_dev->soft; @@ -793,7 +793,7 @@ static int mbcs_remove(struct cx_dev *dev) return 0; } -const struct cx_device_id __devinitdata mbcs_id_table[] = { +static const struct cx_device_id __devinitdata mbcs_id_table[] = { { .part_num = MBCS_PART_NUM, .mfg_num = MBCS_MFG_NUM, @@ -807,7 +807,7 @@ const struct cx_device_id __devinitdata mbcs_id_table[] = { MODULE_DEVICE_TABLE(cx, mbcs_id_table); -struct cx_drv mbcs_driver = { +static struct cx_drv mbcs_driver = { .name = DEVICE_NAME, .id_table = mbcs_id_table, .probe = mbcs_probe, @@ -816,12 +816,7 @@ struct cx_drv mbcs_driver = { static void __exit mbcs_exit(void) { - int rv; - - rv = unregister_chrdev(mbcs_major, DEVICE_NAME); - if (rv < 0) - DBG(KERN_ALERT "Error in unregister_chrdev: %d\n", rv); - + unregister_chrdev(mbcs_major, DEVICE_NAME); cx_driver_unregister(&mbcs_driver); } diff --git a/drivers/char/mbcs.h b/drivers/char/mbcs.h index e7fd47e43257..c9905a3c3353 100644 --- a/drivers/char/mbcs.h +++ b/drivers/char/mbcs.h @@ -542,12 +542,12 @@ struct mbcs_soft { struct semaphore algolock; }; -extern int mbcs_open(struct inode *ip, struct file *fp); -extern ssize_t mbcs_sram_read(struct file *fp, char __user *buf, size_t len, +static int mbcs_open(struct inode *ip, struct file *fp); +static ssize_t mbcs_sram_read(struct file *fp, char __user *buf, size_t len, loff_t * off); -extern ssize_t mbcs_sram_write(struct file *fp, const char __user *buf, size_t len, +static ssize_t mbcs_sram_write(struct file *fp, const char __user *buf, size_t len, loff_t * off); -extern loff_t mbcs_sram_llseek(struct file *filp, loff_t off, int whence); -extern int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma); +static loff_t mbcs_sram_llseek(struct file *filp, loff_t off, int whence); +static int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma); #endif // __MBCS_H__ diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index e0d35c20c04f..ed76f0a127fd 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -1405,7 +1405,6 @@ static int moxaCard; static struct mon_str moxaLog; static int moxaFuncTout = HZ / 2; -static void moxadelay(int); static void moxafunc(void __iomem *, int, ushort); static void wait_finish(void __iomem *); static void low_water_check(void __iomem *); @@ -2404,10 +2403,10 @@ void MoxaPortSendBreak(int port, int ms100) ofsAddr = moxa_ports[port].tableAddr; if (ms100) { moxafunc(ofsAddr, FC_SendBreak, Magic_code); - moxadelay(ms100 * (HZ / 10)); + msleep(ms100 * 10); } else { moxafunc(ofsAddr, FC_SendBreak, Magic_code); - moxadelay(HZ / 4); /* 250 ms */ + msleep(250); } moxafunc(ofsAddr, FC_StopBreak, Magic_code); } @@ -2476,18 +2475,6 @@ static int moxa_set_serial_info(struct moxa_port *info, /***************************************************************************** * Static local functions: * *****************************************************************************/ -/* - * moxadelay - delays a specified number ticks - */ -static void moxadelay(int tick) -{ - unsigned long st, et; - - st = jiffies; - et = st + tick; - while (time_before(jiffies, et)); -} - static void moxafunc(void __iomem *ofsAddr, int cmd, ushort arg) { @@ -2535,7 +2522,7 @@ static int moxaloadbios(int cardno, unsigned char __user *tmp, int len) return -EFAULT; baseAddr = moxa_boards[cardno].basemem; writeb(HW_reset, baseAddr + Control_reg); /* reset */ - moxadelay(1); /* delay 10 ms */ + msleep(10); for (i = 0; i < 4096; i++) writeb(0, baseAddr + i); /* clear fix page */ for (i = 0; i < len; i++) @@ -2713,7 +2700,7 @@ static int moxaloadc218(int cardno, void __iomem *baseAddr, int len) for (i = 0; i < 100; i++) { if (readw(baseAddr + C218_key) == keycode) break; - moxadelay(1); /* delay 10 ms */ + msleep(10); } if (readw(baseAddr + C218_key) != keycode) { return (-1); @@ -2725,7 +2712,7 @@ static int moxaloadc218(int cardno, void __iomem *baseAddr, int len) for (i = 0; i < 100; i++) { if (readw(baseAddr + C218_key) == keycode) break; - moxadelay(1); /* delay 10 ms */ + msleep(10); } retry++; } while ((readb(baseAddr + C218chksum_ok) != 1) && (retry < 3)); @@ -2736,7 +2723,7 @@ static int moxaloadc218(int cardno, void __iomem *baseAddr, int len) for (i = 0; i < 100; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; - moxadelay(1); /* delay 10 ms */ + msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) { return (-1); @@ -2746,7 +2733,7 @@ static int moxaloadc218(int cardno, void __iomem *baseAddr, int len) for (i = 0; i < 100; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; - moxadelay(1); /* delay 10 ms */ + msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) { return (-1); @@ -2788,7 +2775,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor for (i = 0; i < 10; i++) { if (readw(baseAddr + C320_key) == C320_KeyCode) break; - moxadelay(1); + msleep(10); } if (readw(baseAddr + C320_key) != C320_KeyCode) return (-1); @@ -2799,7 +2786,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor for (i = 0; i < 10; i++) { if (readw(baseAddr + C320_key) == C320_KeyCode) break; - moxadelay(1); + msleep(10); } retry++; } while ((readb(baseAddr + C320chksum_ok) != 1) && (retry < 3)); @@ -2809,7 +2796,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor for (i = 0; i < 600; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; - moxadelay(1); + msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) return (-100); @@ -2828,7 +2815,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor for (i = 0; i < 500; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; - moxadelay(1); + msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) return (-102); @@ -2842,7 +2829,7 @@ static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPor for (i = 0; i < 600; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; - moxadelay(1); + msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) return (-102); diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index 13808f6083a0..2b889317461e 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -540,13 +540,12 @@ static int mgslpc_probe(struct pcmcia_device *link) if (debug_level >= DEBUG_LEVEL_INFO) printk("mgslpc_attach\n"); - info = kmalloc(sizeof(MGSLPC_INFO), GFP_KERNEL); + info = kzalloc(sizeof(MGSLPC_INFO), GFP_KERNEL); if (!info) { printk("Error can't allocate device instance data\n"); return -ENOMEM; } - memset(info, 0, sizeof(MGSLPC_INFO)); info->magic = MGSLPC_MAGIC; INIT_WORK(&info->task, bh_handler); info->max_frame_size = 4096; diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c index 294e9cb0c449..0ce96670f979 100644 --- a/drivers/char/rio/rio_linux.c +++ b/drivers/char/rio/rio_linux.c @@ -803,9 +803,7 @@ static void *ckmalloc(int size) { void *p; - p = kmalloc(size, GFP_KERNEL); - if (p) - memset(p, 0, size); + p = kzalloc(size, GFP_KERNEL); return p; } diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c index 8cc60b693460..7321d002c34f 100644 --- a/drivers/char/rio/riocmd.c +++ b/drivers/char/rio/riocmd.c @@ -556,9 +556,7 @@ struct CmdBlk *RIOGetCmdBlk(void) { struct CmdBlk *CmdBlkP; - CmdBlkP = kmalloc(sizeof(struct CmdBlk), GFP_ATOMIC); - if (CmdBlkP) - memset(CmdBlkP, 0, sizeof(struct CmdBlk)); + CmdBlkP = kzalloc(sizeof(struct CmdBlk), GFP_ATOMIC); return CmdBlkP; } diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c index 7e988357326e..991119c9f473 100644 --- a/drivers/char/rio/riotable.c +++ b/drivers/char/rio/riotable.c @@ -863,8 +863,7 @@ int RIOReMapPorts(struct rio_info *p, struct Host *HostP, struct Map *HostMapP) if (PortP->TxRingBuffer) memset(PortP->TxRingBuffer, 0, p->RIOBufferSize); else if (p->RIOBufferSize) { - PortP->TxRingBuffer = kmalloc(p->RIOBufferSize, GFP_KERNEL); - memset(PortP->TxRingBuffer, 0, p->RIOBufferSize); + PortP->TxRingBuffer = kzalloc(p->RIOBufferSize, GFP_KERNEL); } PortP->TxBufferOut = 0; PortP->TxBufferIn = 0; diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c index 3494e3fc44bf..b37e626f4faa 100644 --- a/drivers/char/riscom8.c +++ b/drivers/char/riscom8.c @@ -213,14 +213,6 @@ static inline void rc_release_io_range(struct riscom_board * const bp) release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1); } -/* Must be called with enabled interrupts */ -static inline void rc_long_delay(unsigned long delay) -{ - unsigned long i; - - for (i = jiffies + delay; time_after(i,jiffies); ) ; -} - /* Reset and setup CD180 chip */ static void __init rc_init_CD180(struct riscom_board const * bp) { @@ -231,7 +223,7 @@ static void __init rc_init_CD180(struct riscom_board const * bp) rc_wait_CCR(bp); /* Wait for CCR ready */ rc_out(bp, CD180_CCR, CCR_HARDRESET); /* Reset CD180 chip */ sti(); - rc_long_delay(HZ/20); /* Delay 0.05 sec */ + msleep(50); /* Delay 0.05 sec */ cli(); rc_out(bp, CD180_GIVR, RC_ID); /* Set ID for this chip */ rc_out(bp, CD180_GICR, 0); /* Clear all bits */ @@ -280,7 +272,7 @@ static int __init rc_probe(struct riscom_board *bp) rc_wait_CCR(bp); rc_out(bp, CD180_CCR, CCR_TXEN); /* Enable transmitter */ rc_out(bp, CD180_IER, IER_TXRDY); /* Enable tx empty intr */ - rc_long_delay(HZ/20); + msleep(50); irqs = probe_irq_off(irqs); val1 = rc_in(bp, RC_BSR); /* Get Board Status reg */ val2 = rc_in(bp, RC_ACK_TINT); /* ACK interrupt */ diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index 0270080ff0c0..56cbba7b6ec0 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -635,12 +635,11 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev) ctlp = sCtlNumToCtlPtr(board); /* Get a r_port struct for the port, fill it in and save it globally, indexed by line number */ - info = kmalloc(sizeof (struct r_port), GFP_KERNEL); + info = kzalloc(sizeof (struct r_port), GFP_KERNEL); if (!info) { printk(KERN_INFO "Couldn't allocate info struct for line #%d\n", line); return; } - memset(info, 0, sizeof (struct r_port)); info->magic = RPORT_MAGIC; info->line = line; diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c index baf7234b6e66..455855631aef 100644 --- a/drivers/char/specialix.c +++ b/drivers/char/specialix.c @@ -345,18 +345,6 @@ static inline void sx_release_io_range(struct specialix_board * bp) } -/* Must be called with enabled interrupts */ -/* Ugly. Very ugly. Don't use this for anything else than initialization - code */ -static inline void sx_long_delay(unsigned long delay) -{ - unsigned long i; - - for (i = jiffies + delay; time_after(i, jiffies); ) ; -} - - - /* Set the IRQ using the RTS lines that run to the PAL on the board.... */ static int sx_set_irq ( struct specialix_board *bp) { @@ -397,7 +385,7 @@ static int sx_init_CD186x(struct specialix_board * bp) spin_lock_irqsave(&bp->lock, flags); sx_out_off(bp, CD186x_CCR, CCR_HARDRESET); /* Reset CD186x chip */ spin_unlock_irqrestore(&bp->lock, flags); - sx_long_delay(HZ/20); /* Delay 0.05 sec */ + msleep(50); /* Delay 0.05 sec */ spin_lock_irqsave(&bp->lock, flags); sx_out_off(bp, CD186x_GIVR, SX_ID); /* Set ID for this chip */ sx_out_off(bp, CD186x_GICR, 0); /* Clear all bits */ @@ -533,7 +521,7 @@ static int sx_probe(struct specialix_board *bp) sx_wait_CCR(bp); sx_out(bp, CD186x_CCR, CCR_TXEN); /* Enable transmitter */ sx_out(bp, CD186x_IER, IER_TXRDY); /* Enable tx empty intr */ - sx_long_delay(HZ/20); + msleep(50); irqs = probe_irq_off(irqs); dprintk (SX_DEBUG_INIT, "SRSR = %02x, ", sx_in(bp, CD186x_SRSR)); diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index 8c73ccb8830f..4a80b2f864e0 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -1788,7 +1788,6 @@ static void stl_offintr(struct work_struct *work) if (tty == NULL) return; - lock_kernel(); if (test_bit(ASYI_TXLOW, &portp->istate)) tty_wakeup(tty); @@ -1802,7 +1801,6 @@ static void stl_offintr(struct work_struct *work) if (portp->flags & ASYNC_CHECK_CD) tty_hangup(tty); /* FIXME: module removal race here - AKPM */ } - unlock_kernel(); } /*****************************************************************************/ @@ -2357,9 +2355,6 @@ static int __devinit stl_pciprobe(struct pci_dev *pdev, if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) goto err; - dev_info(&pdev->dev, "please, report this to LKML: %x/%x/%x\n", - pdev->vendor, pdev->device, pdev->class); - retval = pci_enable_device(pdev); if (retval) goto err; @@ -4800,7 +4795,6 @@ static void __exit stallion_module_exit(void) { struct stlbrd *brdp; unsigned int i, j; - int retval; pr_debug("cleanup_module()\n"); @@ -4823,9 +4817,7 @@ static void __exit stallion_module_exit(void) for (i = 0; i < 4; i++) class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i)); - if ((retval = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem"))) - printk("STALLION: failed to un-register serial memory device, " - "errno=%d\n", -retval); + unregister_chrdev(STL_SIOMEMMAJOR, "staliomem"); class_destroy(stallion_class); pci_unregister_driver(&stl_pcidriver); diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index f53e51ddb9d7..fdc256b380b8 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -4324,13 +4324,12 @@ static struct mgsl_struct* mgsl_allocate_device(void) { struct mgsl_struct *info; - info = kmalloc(sizeof(struct mgsl_struct), + info = kzalloc(sizeof(struct mgsl_struct), GFP_KERNEL); if (!info) { printk("Error can't allocate device instance data\n"); } else { - memset(info, 0, sizeof(struct mgsl_struct)); info->magic = MGSL_MAGIC; INIT_WORK(&info->task, mgsl_bh_handler); info->max_frame_size = 4096; diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 428b514201f4..372a37e25620 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -3414,13 +3414,12 @@ static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev { struct slgt_info *info; - info = kmalloc(sizeof(struct slgt_info), GFP_KERNEL); + info = kzalloc(sizeof(struct slgt_info), GFP_KERNEL); if (!info) { DBGERR(("%s device alloc failed adapter=%d port=%d\n", driver_name, adapter_num, port_num)); } else { - memset(info, 0, sizeof(struct slgt_info)); info->magic = MGSL_MAGIC; INIT_WORK(&info->task, bh_handler); info->max_frame_size = 4096; diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c index a65407b32079..c63013b2fc36 100644 --- a/drivers/char/synclinkmp.c +++ b/drivers/char/synclinkmp.c @@ -3786,14 +3786,13 @@ static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev) { SLMP_INFO *info; - info = kmalloc(sizeof(SLMP_INFO), + info = kzalloc(sizeof(SLMP_INFO), GFP_KERNEL); if (!info) { printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n", __FILE__,__LINE__, adapter_num, port_num); } else { - memset(info, 0, sizeof(SLMP_INFO)); info->magic = MGSL_MAGIC; INIT_WORK(&info->task, bh_handler); info->max_frame_size = 4096; diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index db57277117bb..e12275df6ea2 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -1098,15 +1098,10 @@ static int chg_state(int index, unsigned char new_state, struct file *file) /* Cleanup */ static void __exit viotap_exit(void) { - int ret; - remove_proc_entry("iSeries/viotape", NULL); vio_unregister_driver(&viotape_driver); class_destroy(tape_class); - ret = unregister_chrdev(VIOTAPE_MAJOR, "viotape"); - if (ret < 0) - printk(VIOTAPE_KERN_WARN "Error unregistering device: %d\n", - ret); + unregister_chrdev(VIOTAPE_MAJOR, "viotape"); if (viotape_unitinfo) dma_free_coherent(iSeries_vio_dev, sizeof(viotape_unitinfo[0]) * VIOTAPE_MAX_TAPE, diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 6650ae1c088f..edb7002a3216 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -729,10 +729,9 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */ /* although the numbers above are not valid since long ago, the point is still up-to-date and the comment still has its value even if only as a historical artifact. --mj, July 1998 */ - vc = kmalloc(sizeof(struct vc_data), GFP_KERNEL); + vc = kzalloc(sizeof(struct vc_data), GFP_KERNEL); if (!vc) return -ENOMEM; - memset(vc, 0, sizeof(*vc)); vc_cons[currcons].d = vc; INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK); visual_init(vc, currcons, 1); @@ -1991,8 +1990,7 @@ static int is_double_width(uint32_t ucs) { 0xFE10, 0xFE19 }, { 0xFE30, 0xFE6F }, { 0xFF00, 0xFF60 }, { 0xFFE0, 0xFFE6 }, { 0x20000, 0x2FFFD }, { 0x30000, 0x3FFFD } }; - return bisearch(ucs, double_width, - sizeof(double_width) / sizeof(*double_width) - 1); + return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1); } /* acquires console_sem */ @@ -2989,8 +2987,24 @@ static int con_is_graphics(const struct consw *csw, int first, int last) return retval; } -static int unbind_con_driver(const struct consw *csw, int first, int last, - int deflt) +/** + * unbind_con_driver - unbind a console driver + * @csw: pointer to console driver to unregister + * @first: first in range of consoles that @csw should be unbound from + * @last: last in range of consoles that @csw should be unbound from + * @deflt: should next bound console driver be default after @csw is unbound? + * + * To unbind a driver from all possible consoles, pass 0 as @first and + * %MAX_NR_CONSOLES as @last. + * + * @deflt controls whether the console that ends up replacing @csw should be + * the default console. + * + * RETURNS: + * -ENODEV if @csw isn't a registered console driver or can't be unregistered + * or 0 on success. + */ +int unbind_con_driver(const struct consw *csw, int first, int last, int deflt) { struct module *owner = csw->owner; const struct consw *defcsw = NULL; @@ -3075,6 +3089,7 @@ err: return retval; } +EXPORT_SYMBOL(unbind_con_driver); static int vt_bind(struct con_driver *con) { @@ -3491,9 +3506,6 @@ void do_blank_screen(int entering_gfx) } return; } - if (blank_state != blank_normal_wait) - return; - blank_state = blank_off; /* entering graphics mode? */ if (entering_gfx) { @@ -3501,10 +3513,15 @@ void do_blank_screen(int entering_gfx) save_screen(vc); vc->vc_sw->con_blank(vc, -1, 1); console_blanked = fg_console + 1; + blank_state = blank_off; set_origin(vc); return; } + if (blank_state != blank_normal_wait) + return; + blank_state = blank_off; + /* don't blank graphics */ if (vc->vc_mode != KD_TEXT) { console_blanked = fg_console + 1; diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig index 53f5538c0c05..2f48ba329961 100644 --- a/drivers/char/watchdog/Kconfig +++ b/drivers/char/watchdog/Kconfig @@ -187,6 +187,15 @@ config PNX4008_WATCHDOG Say N if you are unsure. +# AVR32 Architecture + +config AT32AP700X_WDT + tristate "AT32AP700x watchdog" + depends on WATCHDOG && CPU_AT32AP7000 + help + Watchdog timer embedded into AT32AP700x devices. This will reboot + your system when the timeout is reached. + # X86 (i386 + ia64 + x86_64) Architecture config ACQUIRE_WDT diff --git a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile index d90f649038c2..3907ec04a4e5 100644 --- a/drivers/char/watchdog/Makefile +++ b/drivers/char/watchdog/Makefile @@ -36,6 +36,9 @@ obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o obj-$(CONFIG_EP93XX_WATCHDOG) += ep93xx_wdt.o obj-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o +# AVR32 Architecture +obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o + # X86 (i386 + ia64 + x86_64) Architecture obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o diff --git a/drivers/char/watchdog/at32ap700x_wdt.c b/drivers/char/watchdog/at32ap700x_wdt.c new file mode 100644 index 000000000000..54a516169d07 --- /dev/null +++ b/drivers/char/watchdog/at32ap700x_wdt.c @@ -0,0 +1,386 @@ +/* + * Watchdog driver for Atmel AT32AP700X devices + * + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/miscdevice.h> +#include <linux/fs.h> +#include <linux/platform_device.h> +#include <linux/watchdog.h> +#include <linux/uaccess.h> +#include <linux/io.h> +#include <linux/spinlock.h> + +#define TIMEOUT_MIN 1 +#define TIMEOUT_MAX 2 +#define TIMEOUT_DEFAULT TIMEOUT_MAX + +/* module parameters */ +static int timeout = TIMEOUT_DEFAULT; +module_param(timeout, int, 0); +MODULE_PARM_DESC(timeout, + "Timeout value. Limited to be 1 or 2 seconds. (default=" + __MODULE_STRING(TIMEOUT_DEFAULT) ")"); + +static int nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, int, 0); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +/* Watchdog registers and write/read macro */ +#define WDT_CTRL 0x00 +#define WDT_CTRL_EN 0 +#define WDT_CTRL_PSEL 8 +#define WDT_CTRL_KEY 24 + +#define WDT_CLR 0x04 + +#define WDT_BIT(name) (1 << WDT_##name) +#define WDT_BF(name, value) ((value) << WDT_##name) + +#define wdt_readl(dev, reg) \ + __raw_readl((dev)->regs + WDT_##reg) +#define wdt_writel(dev, reg, value) \ + __raw_writel((value), (dev)->regs + WDT_##reg) + +struct wdt_at32ap700x { + void __iomem *regs; + spinlock_t io_lock; + int timeout; + unsigned long users; + struct miscdevice miscdev; +}; + +static struct wdt_at32ap700x *wdt; +static char expect_release; + +/* + * Disable the watchdog. + */ +static inline void at32_wdt_stop(void) +{ + unsigned long psel; + + spin_lock(&wdt->io_lock); + psel = wdt_readl(wdt, CTRL) & WDT_BF(CTRL_PSEL, 0x0f); + wdt_writel(wdt, CTRL, psel | WDT_BF(CTRL_KEY, 0x55)); + wdt_writel(wdt, CTRL, psel | WDT_BF(CTRL_KEY, 0xaa)); + spin_unlock(&wdt->io_lock); +} + +/* + * Enable and reset the watchdog. + */ +static inline void at32_wdt_start(void) +{ + /* 0xf is 2^16 divider = 2 sec, 0xe is 2^15 divider = 1 sec */ + unsigned long psel = (wdt->timeout > 1) ? 0xf : 0xe; + + spin_lock(&wdt->io_lock); + wdt_writel(wdt, CTRL, WDT_BIT(CTRL_EN) + | WDT_BF(CTRL_PSEL, psel) + | WDT_BF(CTRL_KEY, 0x55)); + wdt_writel(wdt, CTRL, WDT_BIT(CTRL_EN) + | WDT_BF(CTRL_PSEL, psel) + | WDT_BF(CTRL_KEY, 0xaa)); + spin_unlock(&wdt->io_lock); +} + +/* + * Pat the watchdog timer. + */ +static inline void at32_wdt_pat(void) +{ + spin_lock(&wdt->io_lock); + wdt_writel(wdt, CLR, 0x42); + spin_unlock(&wdt->io_lock); +} + +/* + * Watchdog device is opened, and watchdog starts running. + */ +static int at32_wdt_open(struct inode *inode, struct file *file) +{ + if (test_and_set_bit(1, &wdt->users)) + return -EBUSY; + + at32_wdt_start(); + return nonseekable_open(inode, file); +} + +/* + * Close the watchdog device. + */ +static int at32_wdt_close(struct inode *inode, struct file *file) +{ + if (expect_release == 42) { + at32_wdt_stop(); + } else { + dev_dbg(wdt->miscdev.parent, + "Unexpected close, not stopping watchdog!\n"); + at32_wdt_pat(); + } + clear_bit(1, &wdt->users); + expect_release = 0; + return 0; +} + +/* + * Change the watchdog time interval. + */ +static int at32_wdt_settimeout(int time) +{ + /* + * All counting occurs at 1 / SLOW_CLOCK (32 kHz) and max prescaler is + * 2 ^ 16 allowing up to 2 seconds timeout. + */ + if ((time < TIMEOUT_MIN) || (time > TIMEOUT_MAX)) + return -EINVAL; + + /* + * Set new watchdog time. It will be used when at32_wdt_start() is + * called. + */ + wdt->timeout = time; + return 0; +} + +static struct watchdog_info at32_wdt_info = { + .identity = "at32ap700x watchdog", + .options = WDIOF_SETTIMEOUT | + WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, +}; + +/* + * Handle commands from user-space. + */ +static int at32_wdt_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + int ret = -ENOTTY; + int time; + void __user *argp = (void __user *)arg; + int __user *p = argp; + + switch (cmd) { + case WDIOC_KEEPALIVE: + at32_wdt_pat(); + ret = 0; + break; + case WDIOC_GETSUPPORT: + ret = copy_to_user(argp, &at32_wdt_info, + sizeof(at32_wdt_info)) ? -EFAULT : 0; + break; + case WDIOC_SETTIMEOUT: + ret = get_user(time, p); + if (ret) + break; + ret = at32_wdt_settimeout(time); + if (ret) + break; + /* Enable new time value */ + at32_wdt_start(); + /* fall through */ + case WDIOC_GETTIMEOUT: + ret = put_user(wdt->timeout, p); + break; + case WDIOC_GETSTATUS: /* fall through */ + case WDIOC_GETBOOTSTATUS: + ret = put_user(0, p); + break; + case WDIOC_SETOPTIONS: + ret = get_user(time, p); + if (ret) + break; + if (time & WDIOS_DISABLECARD) + at32_wdt_stop(); + if (time & WDIOS_ENABLECARD) + at32_wdt_start(); + ret = 0; + break; + } + + return ret; +} + +static ssize_t at32_wdt_write(struct file *file, const char __user *data, + size_t len, loff_t *ppos) +{ + /* See if we got the magic character 'V' and reload the timer */ + if (len) { + if (!nowayout) { + size_t i; + + /* + * note: just in case someone wrote the magic + * character five months ago... + */ + expect_release = 0; + + /* + * scan to see whether or not we got the magic + * character + */ + for (i = 0; i != len; i++) { + char c; + if (get_user(c, data+i)) + return -EFAULT; + if (c == 'V') + expect_release = 42; + } + } + /* someone wrote to us, we should pat the watchdog */ + at32_wdt_pat(); + } + return len; +} + +static const struct file_operations at32_wdt_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .ioctl = at32_wdt_ioctl, + .open = at32_wdt_open, + .release = at32_wdt_close, + .write = at32_wdt_write, +}; + +static int __init at32_wdt_probe(struct platform_device *pdev) +{ + struct resource *regs; + int ret; + + if (wdt) { + dev_dbg(&pdev->dev, "only 1 wdt instance supported.\n"); + return -EBUSY; + } + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!regs) { + dev_dbg(&pdev->dev, "missing mmio resource\n"); + return -ENXIO; + } + + wdt = kzalloc(sizeof(struct wdt_at32ap700x), GFP_KERNEL); + if (!wdt) { + dev_dbg(&pdev->dev, "no memory for wdt structure\n"); + return -ENOMEM; + } + + wdt->regs = ioremap(regs->start, regs->end - regs->start + 1); + if (!wdt->regs) { + ret = -ENOMEM; + dev_dbg(&pdev->dev, "could not map I/O memory\n"); + goto err_free; + } + spin_lock_init(&wdt->io_lock); + wdt->users = 0; + wdt->miscdev.minor = WATCHDOG_MINOR; + wdt->miscdev.name = "watchdog"; + wdt->miscdev.fops = &at32_wdt_fops; + + if (at32_wdt_settimeout(timeout)) { + at32_wdt_settimeout(TIMEOUT_DEFAULT); + dev_dbg(&pdev->dev, + "default timeout invalid, set to %d sec.\n", + TIMEOUT_DEFAULT); + } + + ret = misc_register(&wdt->miscdev); + if (ret) { + dev_dbg(&pdev->dev, "failed to register wdt miscdev\n"); + goto err_iounmap; + } + + platform_set_drvdata(pdev, wdt); + wdt->miscdev.parent = &pdev->dev; + dev_info(&pdev->dev, + "AT32AP700X WDT at 0x%p, timeout %d sec (nowayout=%d)\n", + wdt->regs, wdt->timeout, nowayout); + + return 0; + +err_iounmap: + iounmap(wdt->regs); +err_free: + kfree(wdt); + wdt = NULL; + return ret; +} + +static int __exit at32_wdt_remove(struct platform_device *pdev) +{ + if (wdt && platform_get_drvdata(pdev) == wdt) { + /* Stop the timer before we leave */ + if (!nowayout) + at32_wdt_stop(); + + misc_deregister(&wdt->miscdev); + iounmap(wdt->regs); + kfree(wdt); + wdt = NULL; + platform_set_drvdata(pdev, NULL); + } + + return 0; +} + +static void at32_wdt_shutdown(struct platform_device *pdev) +{ + at32_wdt_stop(); +} + +#ifdef CONFIG_PM +static int at32_wdt_suspend(struct platform_device *pdev, pm_message_t message) +{ + at32_wdt_stop(); + return 0; +} + +static int at32_wdt_resume(struct platform_device *pdev) +{ + if (wdt->users) + at32_wdt_start(); + return 0; +} +#else +#define at32_wdt_suspend NULL +#define at32_wdt_resume NULL +#endif + +static struct platform_driver at32_wdt_driver = { + .remove = __exit_p(at32_wdt_remove), + .suspend = at32_wdt_suspend, + .resume = at32_wdt_resume, + .driver = { + .name = "at32_wdt", + .owner = THIS_MODULE, + }, + .shutdown = at32_wdt_shutdown, +}; + +static int __init at32_wdt_init(void) +{ + return platform_driver_probe(&at32_wdt_driver, at32_wdt_probe); +} +module_init(at32_wdt_init); + +static void __exit at32_wdt_exit(void) +{ + platform_driver_unregister(&at32_wdt_driver); +} +module_exit(at32_wdt_exit); + +MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); +MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/char/watchdog/ep93xx_wdt.c b/drivers/char/watchdog/ep93xx_wdt.c index 01cf123b1616..0e4787a0bb87 100644 --- a/drivers/char/watchdog/ep93xx_wdt.c +++ b/drivers/char/watchdog/ep93xx_wdt.c @@ -107,10 +107,6 @@ static ssize_t ep93xx_wdt_write(struct file *file, const char __user *data, size_t len, loff_t *ppos) { - /* Can't seek (pwrite) on this device */ - if (*ppos != file->f_pos) - return -ESPIPE; - if (len) { if (!nowayout) { size_t i; diff --git a/drivers/char/watchdog/mixcomwd.c b/drivers/char/watchdog/mixcomwd.c index f35e2848aa3e..db2ccb864412 100644 --- a/drivers/char/watchdog/mixcomwd.c +++ b/drivers/char/watchdog/mixcomwd.c @@ -29,11 +29,18 @@ * - support for one more type board * * Version 0.5 (2001/12/14) Matt Domsch <Matt_Domsch@dell.com> - * - added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT + * - added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT + * + * Version 0.6 (2002/04/12): Rob Radez <rob@osinvestor.com> + * - make mixcomwd_opened unsigned, + * removed lock_kernel/unlock_kernel from mixcomwd_release, + * modified ioctl a bit to conform to API * */ -#define VERSION "0.5" +#define VERSION "0.6" +#define WATCHDOG_NAME "mixcomwd" +#define PFX WATCHDOG_NAME ": " #include <linux/module.h> #include <linux/moduleparam.h> @@ -49,12 +56,46 @@ #include <asm/uaccess.h> #include <asm/io.h> -static int mixcomwd_ioports[] = { 0x180, 0x280, 0x380, 0x000 }; - -#define MIXCOM_WATCHDOG_OFFSET 0xc10 +/* + * We have two types of cards that can be probed: + * 1) The Mixcom cards: these cards can be found at addresses + * 0x180, 0x280, 0x380 with an additional offset of 0xc10. + * (Or 0xd90, 0xe90, 0xf90). + * 2) The FlashCOM cards: these cards can be set up at + * 0x300 -> 0x378, in 0x8 jumps with an offset of 0x04. + * (Or 0x304 -> 0x37c in 0x8 jumps). + * Each card has it's own ID. + */ #define MIXCOM_ID 0x11 -#define FLASHCOM_WATCHDOG_OFFSET 0x4 #define FLASHCOM_ID 0x18 +static struct { + int ioport; + int id; +} mixcomwd_io_info[] __devinitdata = { + /* The Mixcom cards */ + {0x0d90, MIXCOM_ID}, + {0x0e90, MIXCOM_ID}, + {0x0f90, MIXCOM_ID}, + /* The FlashCOM cards */ + {0x0304, FLASHCOM_ID}, + {0x030c, FLASHCOM_ID}, + {0x0314, FLASHCOM_ID}, + {0x031c, FLASHCOM_ID}, + {0x0324, FLASHCOM_ID}, + {0x032c, FLASHCOM_ID}, + {0x0334, FLASHCOM_ID}, + {0x033c, FLASHCOM_ID}, + {0x0344, FLASHCOM_ID}, + {0x034c, FLASHCOM_ID}, + {0x0354, FLASHCOM_ID}, + {0x035c, FLASHCOM_ID}, + {0x0364, FLASHCOM_ID}, + {0x036c, FLASHCOM_ID}, + {0x0374, FLASHCOM_ID}, + {0x037c, FLASHCOM_ID}, + /* The end of the list */ + {0x0000, 0}, +}; static void mixcomwd_timerfun(unsigned long d); @@ -113,13 +154,13 @@ static int mixcomwd_release(struct inode *inode, struct file *file) { if (expect_close == 42) { if(mixcomwd_timer_alive) { - printk(KERN_ERR "mixcomwd: release called while internal timer alive"); + printk(KERN_ERR PFX "release called while internal timer alive"); return -EBUSY; } mixcomwd_timer_alive=1; mod_timer(&mixcomwd_timer, jiffies + 5 * HZ); } else { - printk(KERN_CRIT "mixcomwd: WDT device closed unexpectedly. WDT will not stop!\n"); + printk(KERN_CRIT PFX "WDT device closed unexpectedly. WDT will not stop!\n"); } clear_bit(0,&mixcomwd_opened); @@ -188,8 +229,7 @@ static int mixcomwd_ioctl(struct inode *inode, struct file *file, return 0; } -static const struct file_operations mixcomwd_fops= -{ +static const struct file_operations mixcomwd_fops = { .owner = THIS_MODULE, .llseek = no_llseek, .write = mixcomwd_write, @@ -198,46 +238,30 @@ static const struct file_operations mixcomwd_fops= .release = mixcomwd_release, }; -static struct miscdevice mixcomwd_miscdev= -{ +static struct miscdevice mixcomwd_miscdev = { .minor = WATCHDOG_MINOR, .name = "watchdog", .fops = &mixcomwd_fops, }; -static int __init mixcomwd_checkcard(int port) +static int __init checkcard(int port, int card_id) { int id; - port += MIXCOM_WATCHDOG_OFFSET; - if (!request_region(port, 1, "MixCOM watchdog")) { - return 0; - } - - id=inb_p(port) & 0x3f; - if(id!=MIXCOM_ID) { - release_region(port, 1); - return 0; - } - return port; -} - -static int __init flashcom_checkcard(int port) -{ - int id; - - port += FLASHCOM_WATCHDOG_OFFSET; if (!request_region(port, 1, "MixCOM watchdog")) { return 0; } id=inb_p(port); - if(id!=FLASHCOM_ID) { + if (card_id==MIXCOM_ID) + id &= 0x3f; + + if (id!=card_id) { release_region(port, 1); return 0; } - return port; - } + return 1; +} static int __init mixcomwd_init(void) { @@ -245,50 +269,50 @@ static int __init mixcomwd_init(void) int ret; int found=0; - for (i = 0; !found && mixcomwd_ioports[i] != 0; i++) { - watchdog_port = mixcomwd_checkcard(mixcomwd_ioports[i]); - if (watchdog_port) { - found = 1; - } - } - - /* The FlashCOM card can be set up at 0x300 -> 0x378, in 0x8 jumps */ - for (i = 0x300; !found && i < 0x380; i+=0x8) { - watchdog_port = flashcom_checkcard(i); - if (watchdog_port) { + for (i = 0; !found && mixcomwd_io_info[i].ioport != 0; i++) { + if (checkcard(mixcomwd_io_info[i].ioport, + mixcomwd_io_info[i].id)) { found = 1; + watchdog_port = mixcomwd_io_info[i].ioport; } } if (!found) { - printk("mixcomwd: No card detected, or port not available.\n"); + printk(KERN_ERR PFX "No card detected, or port not available.\n"); return -ENODEV; } ret = misc_register(&mixcomwd_miscdev); if (ret) { - release_region(watchdog_port, 1); - return ret; + printk(KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n", + WATCHDOG_MINOR, ret); + goto error_misc_register_watchdog; } - printk(KERN_INFO "MixCOM watchdog driver v%s, watchdog port at 0x%3x\n",VERSION,watchdog_port); + printk(KERN_INFO "MixCOM watchdog driver v%s, watchdog port at 0x%3x\n", + VERSION, watchdog_port); return 0; + +error_misc_register_watchdog: + release_region(watchdog_port, 1); + watchdog_port = 0x0000; + return ret; } static void __exit mixcomwd_exit(void) { if (!nowayout) { if(mixcomwd_timer_alive) { - printk(KERN_WARNING "mixcomwd: I quit now, hardware will" + printk(KERN_WARNING PFX "I quit now, hardware will" " probably reboot!\n"); del_timer_sync(&mixcomwd_timer); mixcomwd_timer_alive=0; } } - release_region(watchdog_port,1); misc_deregister(&mixcomwd_miscdev); + release_region(watchdog_port,1); } module_init(mixcomwd_init); @@ -296,5 +320,6 @@ module_exit(mixcomwd_exit); MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>"); MODULE_DESCRIPTION("MixCom Watchdog driver"); +MODULE_VERSION(VERSION); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/char/watchdog/mpcore_wdt.c b/drivers/char/watchdog/mpcore_wdt.c index e88947f8fe53..0d2b27735419 100644 --- a/drivers/char/watchdog/mpcore_wdt.c +++ b/drivers/char/watchdog/mpcore_wdt.c @@ -328,12 +328,11 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev) goto err_out; } - wdt = kmalloc(sizeof(struct mpcore_wdt), GFP_KERNEL); + wdt = kzalloc(sizeof(struct mpcore_wdt), GFP_KERNEL); if (!wdt) { ret = -ENOMEM; goto err_out; } - memset(wdt, 0, sizeof(struct mpcore_wdt)); wdt->dev = &dev->dev; wdt->irq = platform_get_irq(dev, 0); diff --git a/drivers/char/watchdog/pcwd_usb.c b/drivers/char/watchdog/pcwd_usb.c index 1e7a6719d5ba..0f3fd6c9c354 100644 --- a/drivers/char/watchdog/pcwd_usb.c +++ b/drivers/char/watchdog/pcwd_usb.c @@ -626,12 +626,11 @@ static int usb_pcwd_probe(struct usb_interface *interface, const struct usb_devi maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); /* allocate memory for our device and initialize it */ - usb_pcwd = kmalloc (sizeof(struct usb_pcwd_private), GFP_KERNEL); + usb_pcwd = kzalloc (sizeof(struct usb_pcwd_private), GFP_KERNEL); if (usb_pcwd == NULL) { printk(KERN_ERR PFX "Out of memory\n"); goto error; } - memset (usb_pcwd, 0x00, sizeof (*usb_pcwd)); usb_pcwd_device = usb_pcwd; diff --git a/drivers/char/watchdog/pnx4008_wdt.c b/drivers/char/watchdog/pnx4008_wdt.c index 5991add702b0..22f8873dd092 100644 --- a/drivers/char/watchdog/pnx4008_wdt.c +++ b/drivers/char/watchdog/pnx4008_wdt.c @@ -148,10 +148,6 @@ static ssize_t pnx4008_wdt_write(struct file *file, const char *data, size_t len, loff_t * ppos) { - /* Can't seek (pwrite) on this device */ - if (ppos != &file->f_pos) - return -ESPIPE; - if (len) { if (!nowayout) { size_t i; diff --git a/drivers/char/watchdog/s3c2410_wdt.c b/drivers/char/watchdog/s3c2410_wdt.c index 20fa29ca7404..50430bced2f2 100644 --- a/drivers/char/watchdog/s3c2410_wdt.c +++ b/drivers/char/watchdog/s3c2410_wdt.c @@ -92,6 +92,7 @@ typedef enum close_state { static DECLARE_MUTEX(open_lock); +static struct device *wdt_dev; /* platform device attached to */ static struct resource *wdt_mem; static struct resource *wdt_irq; static struct clk *wdt_clock; @@ -180,7 +181,7 @@ static int s3c2410wdt_set_heartbeat(int timeout) } if ((count / divisor) >= 0x10000) { - printk(KERN_ERR PFX "timeout %d too big\n", timeout); + dev_err(wdt_dev, "timeout %d too big\n", timeout); return -EINVAL; } } @@ -233,7 +234,7 @@ static int s3c2410wdt_release(struct inode *inode, struct file *file) if (allow_close == CLOSE_STATE_ALLOW) { s3c2410wdt_stop(); } else { - printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n"); + dev_err(wdt_dev, "Unexpected close, not stopping watchdog\n"); s3c2410wdt_keepalive(); } @@ -338,7 +339,7 @@ static struct miscdevice s3c2410wdt_miscdev = { static irqreturn_t s3c2410wdt_irq(int irqno, void *param) { - printk(KERN_INFO PFX "Watchdog timer expired!\n"); + dev_info(wdt_dev, "watchdog timer expired (irq)\n"); s3c2410wdt_keepalive(); return IRQ_HANDLED; @@ -348,31 +349,36 @@ static irqreturn_t s3c2410wdt_irq(int irqno, void *param) static int s3c2410wdt_probe(struct platform_device *pdev) { struct resource *res; + struct device *dev; + unsigned int wtcon; int started = 0; int ret; int size; DBG("%s: probe=%p\n", __FUNCTION__, pdev); + dev = &pdev->dev; + wdt_dev = &pdev->dev; + /* get the memory region for the watchdog timer */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) { - printk(KERN_INFO PFX "failed to get memory region resouce\n"); + dev_err(dev, "no memory resource specified\n"); return -ENOENT; } size = (res->end-res->start)+1; wdt_mem = request_mem_region(res->start, size, pdev->name); if (wdt_mem == NULL) { - printk(KERN_INFO PFX "failed to get memory region\n"); + dev_err(dev, "failed to get memory region\n"); ret = -ENOENT; goto err_req; } wdt_base = ioremap(res->start, size); if (wdt_base == 0) { - printk(KERN_INFO PFX "failed to ioremap() region\n"); + dev_err(dev, "failed to ioremap() region\n"); ret = -EINVAL; goto err_req; } @@ -381,20 +387,20 @@ static int s3c2410wdt_probe(struct platform_device *pdev) wdt_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (wdt_irq == NULL) { - printk(KERN_INFO PFX "failed to get irq resource\n"); + dev_err(dev, "no irq resource specified\n"); ret = -ENOENT; goto err_map; } ret = request_irq(wdt_irq->start, s3c2410wdt_irq, 0, pdev->name, pdev); if (ret != 0) { - printk(KERN_INFO PFX "failed to install irq (%d)\n", ret); + dev_err(dev, "failed to install irq (%d)\n", ret); goto err_map; } wdt_clock = clk_get(&pdev->dev, "watchdog"); if (IS_ERR(wdt_clock)) { - printk(KERN_INFO PFX "failed to find watchdog clock source\n"); + dev_err(dev, "failed to find watchdog clock source\n"); ret = PTR_ERR(wdt_clock); goto err_irq; } @@ -408,22 +414,22 @@ static int s3c2410wdt_probe(struct platform_device *pdev) started = s3c2410wdt_set_heartbeat(CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME); if (started == 0) { - printk(KERN_INFO PFX "tmr_margin value out of range, default %d used\n", + dev_info(dev,"tmr_margin value out of range, default %d used\n", CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME); } else { - printk(KERN_INFO PFX "default timer value is out of range, cannot start\n"); + dev_info(dev, "default timer value is out of range, cannot start\n"); } } ret = misc_register(&s3c2410wdt_miscdev); if (ret) { - printk (KERN_ERR PFX "cannot register miscdev on minor=%d (%d)\n", + dev_err(dev, "cannot register miscdev on minor=%d (%d)\n", WATCHDOG_MINOR, ret); goto err_clk; } if (tmr_atboot && started == 0) { - printk(KERN_INFO PFX "Starting Watchdog Timer\n"); + dev_info(dev, "starting watchdog timer\n"); s3c2410wdt_start(); } else if (!tmr_atboot) { /* if we're not enabling the watchdog, then ensure it is @@ -433,6 +439,15 @@ static int s3c2410wdt_probe(struct platform_device *pdev) s3c2410wdt_stop(); } + /* print out a statement of readiness */ + + wtcon = readl(wdt_base + S3C2410_WTCON); + + dev_info(dev, "watchdog %sactive, reset %sabled, irq %sabled\n", + (wtcon & S3C2410_WTCON_ENABLE) ? "" : "in", + (wtcon & S3C2410_WTCON_RSTEN) ? "" : "dis", + (wtcon & S3C2410_WTCON_INTEN) ? "" : "en"); + return 0; err_clk: diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index debf1d8e8b41..1724c41d2414 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -3,18 +3,18 @@ # Copyright (c) 2003 Linux Networx # Licensed and distributed under the GPL # -# $Id: Kconfig,v 1.4.2.7 2005/07/08 22:05:38 dsp_llnl Exp $ -# menuconfig EDAC - tristate "EDAC - error detection and reporting (EXPERIMENTAL)" + bool "EDAC - error detection and reporting (EXPERIMENTAL)" depends on HAS_IOMEM - depends on X86 && EXPERIMENTAL + depends on EXPERIMENTAL + depends on X86 || MIPS || PPC help EDAC is designed to report errors in the core system. These are low-level errors that are reported in the CPU or - supporting chipset: memory errors, cache errors, PCI errors, - thermal throttling, etc.. If unsure, select 'Y'. + supporting chipset or other subsystems: + memory errors, cache errors, PCI errors, thermal throttling, etc.. + If unsure, select 'Y'. If this code is reporting problems on your system, please see the EDAC project web pages for more information at: @@ -73,6 +73,14 @@ config EDAC_E752X Support for error detection and correction on the Intel E7520, E7525, E7320 server chipsets. +config EDAC_I82443BXGX + tristate "Intel 82443BX/GX (440BX/GX)" + depends on EDAC_MM_EDAC && PCI && X86_32 + depends on BROKEN + help + Support for error detection and correction on the Intel + 82443BX/GX memory controllers (440BX/GX chipsets). + config EDAC_I82875P tristate "Intel 82875p (D82875P, E7210)" depends on EDAC_MM_EDAC && PCI && X86_32 @@ -80,6 +88,20 @@ config EDAC_I82875P Support for error detection and correction on the Intel DP82785P and E7210 server chipsets. +config EDAC_I82975X + tristate "Intel 82975x (D82975x)" + depends on EDAC_MM_EDAC && PCI && X86 + help + Support for error detection and correction on the Intel + DP82975x server chipsets. + +config EDAC_I3000 + tristate "Intel 3000/3010" + depends on EDAC_MM_EDAC && PCI && X86_32 + help + Support for error detection and correction on the Intel + 3000 and 3010 server chipsets. + config EDAC_I82860 tristate "Intel 82860" depends on EDAC_MM_EDAC && PCI && X86_32 @@ -94,15 +116,20 @@ config EDAC_R82600 Support for error detection and correction on the Radisys 82600 embedded chipset. -choice - prompt "Error detecting method" - default EDAC_POLL +config EDAC_I5000 + tristate "Intel Greencreek/Blackford chipset" + depends on EDAC_MM_EDAC && X86 && PCI + help + Support for error detection and correction the Intel + Greekcreek/Blackford chipsets. -config EDAC_POLL - bool "Poll for errors" +config EDAC_PASEMI + tristate "PA Semi PWRficient" + depends on EDAC_MM_EDAC && PCI + depends on PPC help - Poll the chipset periodically to detect errors. + Support for error detection and correction on PA Semi + PWRficient. -endchoice endif # EDAC diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile index 93137fdab4b3..02c09f0ff157 100644 --- a/drivers/edac/Makefile +++ b/drivers/edac/Makefile @@ -5,14 +5,27 @@ # This file may be distributed under the terms of the # GNU General Public License. # -# $Id: Makefile,v 1.4.2.3 2005/07/08 22:05:38 dsp_llnl Exp $ -obj-$(CONFIG_EDAC_MM_EDAC) += edac_mc.o +obj-$(CONFIG_EDAC) := edac_stub.o +obj-$(CONFIG_EDAC_MM_EDAC) += edac_core.o + +edac_core-objs := edac_mc.o edac_device.o edac_mc_sysfs.o edac_pci_sysfs.o +edac_core-objs += edac_module.o edac_device_sysfs.o + +ifdef CONFIG_PCI +edac_core-objs += edac_pci.o edac_pci_sysfs.o +endif + obj-$(CONFIG_EDAC_AMD76X) += amd76x_edac.o +obj-$(CONFIG_EDAC_I5000) += i5000_edac.o obj-$(CONFIG_EDAC_E7XXX) += e7xxx_edac.o obj-$(CONFIG_EDAC_E752X) += e752x_edac.o +obj-$(CONFIG_EDAC_I82443BXGX) += i82443bxgx_edac.o obj-$(CONFIG_EDAC_I82875P) += i82875p_edac.o +obj-$(CONFIG_EDAC_I82975X) += i82975x_edac.o +obj-$(CONFIG_EDAC_I3000) += i3000_edac.o obj-$(CONFIG_EDAC_I82860) += i82860_edac.o obj-$(CONFIG_EDAC_R82600) += r82600_edac.o +obj-$(CONFIG_EDAC_PASEMI) += pasemi_edac.o diff --git a/drivers/edac/amd76x_edac.c b/drivers/edac/amd76x_edac.c index f79f6b587bfa..f22075410591 100644 --- a/drivers/edac/amd76x_edac.c +++ b/drivers/edac/amd76x_edac.c @@ -17,9 +17,9 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include "edac_mc.h" +#include "edac_core.h" -#define AMD76X_REVISION " Ver: 2.0.1 " __DATE__ +#define AMD76X_REVISION " Ver: 2.0.2 " __DATE__ #define EDAC_MOD_STR "amd76x_edac" #define amd76x_printk(level, fmt, arg...) \ @@ -86,13 +86,13 @@ struct amd76x_dev_info { static const struct amd76x_dev_info amd76x_devs[] = { [AMD761] = { - .ctl_name = "AMD761" - }, + .ctl_name = "AMD761"}, [AMD762] = { - .ctl_name = "AMD762" - }, + .ctl_name = "AMD762"}, }; +static struct edac_pci_ctl_info *amd76x_pci; + /** * amd76x_get_error_info - fetch error information * @mci: Memory controller @@ -102,21 +102,21 @@ static const struct amd76x_dev_info amd76x_devs[] = { * on the chip so that further errors will be reported */ static void amd76x_get_error_info(struct mem_ctl_info *mci, - struct amd76x_error_info *info) + struct amd76x_error_info *info) { struct pci_dev *pdev; pdev = to_pci_dev(mci->dev); pci_read_config_dword(pdev, AMD76X_ECC_MODE_STATUS, - &info->ecc_mode_status); + &info->ecc_mode_status); if (info->ecc_mode_status & BIT(8)) pci_write_bits32(pdev, AMD76X_ECC_MODE_STATUS, - (u32) BIT(8), (u32) BIT(8)); + (u32) BIT(8), (u32) BIT(8)); if (info->ecc_mode_status & BIT(9)) pci_write_bits32(pdev, AMD76X_ECC_MODE_STATUS, - (u32) BIT(9), (u32) BIT(9)); + (u32) BIT(9), (u32) BIT(9)); } /** @@ -130,7 +130,8 @@ static void amd76x_get_error_info(struct mem_ctl_info *mci, * then attempt to handle and clean up after the error */ static int amd76x_process_error_info(struct mem_ctl_info *mci, - struct amd76x_error_info *info, int handle_errors) + struct amd76x_error_info *info, + int handle_errors) { int error_found; u32 row; @@ -138,7 +139,7 @@ static int amd76x_process_error_info(struct mem_ctl_info *mci, error_found = 0; /* - * Check for an uncorrectable error + * Check for an uncorrectable error */ if (info->ecc_mode_status & BIT(8)) { error_found = 1; @@ -146,12 +147,12 @@ static int amd76x_process_error_info(struct mem_ctl_info *mci, if (handle_errors) { row = (info->ecc_mode_status >> 4) & 0xf; edac_mc_handle_ue(mci, mci->csrows[row].first_page, 0, - row, mci->ctl_name); + row, mci->ctl_name); } } /* - * Check for a correctable error + * Check for a correctable error */ if (info->ecc_mode_status & BIT(9)) { error_found = 1; @@ -159,7 +160,7 @@ static int amd76x_process_error_info(struct mem_ctl_info *mci, if (handle_errors) { row = info->ecc_mode_status & 0xf; edac_mc_handle_ce(mci, mci->csrows[row].first_page, 0, - 0, row, 0, mci->ctl_name); + 0, row, 0, mci->ctl_name); } } @@ -182,7 +183,7 @@ static void amd76x_check(struct mem_ctl_info *mci) } static void amd76x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, - enum edac_type edac_mode) + enum edac_type edac_mode) { struct csrow_info *csrow; u32 mba, mba_base, mba_mask, dms; @@ -193,8 +194,7 @@ static void amd76x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, /* find the DRAM Chip Select Base address and mask */ pci_read_config_dword(pdev, - AMD76X_MEM_BASE_ADDR + (index * 4), - &mba); + AMD76X_MEM_BASE_ADDR + (index * 4), &mba); if (!(mba & BIT(0))) continue; @@ -238,7 +238,7 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx) debugf0("%s()\n", __func__); pci_read_config_dword(pdev, AMD76X_ECC_MODE_STATUS, &ems); ems_mode = (ems >> 10) & 0x3; - mci = edac_mc_alloc(0, AMD76X_NR_CSROWS, AMD76X_NR_CHANS); + mci = edac_mc_alloc(0, AMD76X_NR_CSROWS, AMD76X_NR_CHANS, 0); if (mci == NULL) { return -ENOMEM; @@ -249,24 +249,36 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx) mci->mtype_cap = MEM_FLAG_RDDR; mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED; mci->edac_cap = ems_mode ? - (EDAC_FLAG_EC | EDAC_FLAG_SECDED) : EDAC_FLAG_NONE; + (EDAC_FLAG_EC | EDAC_FLAG_SECDED) : EDAC_FLAG_NONE; mci->mod_name = EDAC_MOD_STR; mci->mod_ver = AMD76X_REVISION; mci->ctl_name = amd76x_devs[dev_idx].ctl_name; + mci->dev_name = pci_name(pdev); mci->edac_check = amd76x_check; mci->ctl_page_to_phys = NULL; amd76x_init_csrows(mci, pdev, ems_modes[ems_mode]); - amd76x_get_error_info(mci, &discard); /* clear counters */ + amd76x_get_error_info(mci, &discard); /* clear counters */ /* Here we assume that we will never see multiple instances of this * type of memory controller. The ID is therefore hardcoded to 0. */ - if (edac_mc_add_mc(mci,0)) { + if (edac_mc_add_mc(mci)) { debugf3("%s(): failed edac_mc_add_mc()\n", __func__); goto fail; } + /* allocating generic PCI control info */ + amd76x_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!amd76x_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + /* get this far and it's successful */ debugf3("%s(): success\n", __func__); return 0; @@ -278,7 +290,7 @@ fail: /* returns count (>= 0), or negative on error */ static int __devinit amd76x_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { debugf0("%s()\n", __func__); @@ -300,6 +312,9 @@ static void __devexit amd76x_remove_one(struct pci_dev *pdev) debugf0("%s()\n", __func__); + if (amd76x_pci) + edac_pci_release_generic_ctl(amd76x_pci); + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) return; @@ -308,16 +323,14 @@ static void __devexit amd76x_remove_one(struct pci_dev *pdev) static const struct pci_device_id amd76x_pci_tbl[] __devinitdata = { { - PCI_VEND_DEV(AMD, FE_GATE_700C), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - AMD762 - }, + PCI_VEND_DEV(AMD, FE_GATE_700C), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + AMD762}, { - PCI_VEND_DEV(AMD, FE_GATE_700E), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - AMD761 - }, + PCI_VEND_DEV(AMD, FE_GATE_700E), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + AMD761}, { - 0, - } /* 0 terminated list. */ + 0, + } /* 0 terminated list. */ }; MODULE_DEVICE_TABLE(pci, amd76x_pci_tbl); diff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c index 8bcc887692ab..3bba224cb55d 100644 --- a/drivers/edac/e752x_edac.c +++ b/drivers/edac/e752x_edac.c @@ -22,13 +22,16 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include "edac_mc.h" +#include <linux/edac.h> +#include "edac_core.h" -#define E752X_REVISION " Ver: 2.0.1 " __DATE__ +#define E752X_REVISION " Ver: 2.0.2 " __DATE__ #define EDAC_MOD_STR "e752x_edac" static int force_function_unhide; +static struct edac_pci_ctl_info *e752x_pci; + #define e752x_printk(level, fmt, arg...) \ edac_printk(level, "e752x", fmt, ##arg) @@ -203,25 +206,22 @@ static const struct e752x_dev_info e752x_devs[] = { [E7520] = { .err_dev = PCI_DEVICE_ID_INTEL_7520_1_ERR, .ctl_dev = PCI_DEVICE_ID_INTEL_7520_0, - .ctl_name = "E7520" - }, + .ctl_name = "E7520"}, [E7525] = { .err_dev = PCI_DEVICE_ID_INTEL_7525_1_ERR, .ctl_dev = PCI_DEVICE_ID_INTEL_7525_0, - .ctl_name = "E7525" - }, + .ctl_name = "E7525"}, [E7320] = { .err_dev = PCI_DEVICE_ID_INTEL_7320_1_ERR, .ctl_dev = PCI_DEVICE_ID_INTEL_7320_0, - .ctl_name = "E7320" - }, + .ctl_name = "E7320"}, }; static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci, - unsigned long page) + unsigned long page) { u32 remap; - struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; + struct e752x_pvt *pvt = (struct e752x_pvt *)mci->pvt_info; debugf3("%s()\n", __func__); @@ -241,13 +241,13 @@ static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci, } static void do_process_ce(struct mem_ctl_info *mci, u16 error_one, - u32 sec1_add, u16 sec1_syndrome) + u32 sec1_add, u16 sec1_syndrome) { u32 page; int row; int channel; int i; - struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; + struct e752x_pvt *pvt = (struct e752x_pvt *)mci->pvt_info; debugf3("%s()\n", __func__); @@ -261,7 +261,8 @@ static void do_process_ce(struct mem_ctl_info *mci, u16 error_one, e752x_printk(KERN_WARNING, "Test row %d Table %d %d %d %d %d %d %d %d\n", row, pvt->map[0], pvt->map[1], pvt->map[2], pvt->map[3], - pvt->map[4], pvt->map[5], pvt->map[6], pvt->map[7]); + pvt->map[4], pvt->map[5], pvt->map[6], + pvt->map[7]); /* test for channel remapping */ for (i = 0; i < 8; i++) { @@ -275,24 +276,22 @@ static void do_process_ce(struct mem_ctl_info *mci, u16 error_one, row = i; else e752x_mc_printk(mci, KERN_WARNING, - "row %d not found in remap table\n", row); + "row %d not found in remap table\n", + row); } else row = edac_mc_find_csrow_by_page(mci, page); /* 0 = channel A, 1 = channel B */ channel = !(error_one & 1); - if (!pvt->map_type) - row = 7 - row; - /* e752x mc reads 34:6 of the DRAM linear address */ edac_mc_handle_ce(mci, page, offset_in_page(sec1_add << 4), sec1_syndrome, row, channel, "e752x CE"); } static inline void process_ce(struct mem_ctl_info *mci, u16 error_one, - u32 sec1_add, u16 sec1_syndrome, int *error_found, - int handle_error) + u32 sec1_add, u16 sec1_syndrome, int *error_found, + int handle_error) { *error_found = 1; @@ -301,11 +300,11 @@ static inline void process_ce(struct mem_ctl_info *mci, u16 error_one, } static void do_process_ue(struct mem_ctl_info *mci, u16 error_one, - u32 ded_add, u32 scrb_add) + u32 ded_add, u32 scrb_add) { u32 error_2b, block_page; int row; - struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; + struct e752x_pvt *pvt = (struct e752x_pvt *)mci->pvt_info; debugf3("%s()\n", __func__); @@ -316,14 +315,14 @@ static void do_process_ue(struct mem_ctl_info *mci, u16 error_one, block_page = error_2b >> (PAGE_SHIFT - 4); row = pvt->mc_symmetric ? - /* chip select are bits 14 & 13 */ + /* chip select are bits 14 & 13 */ ((block_page >> 1) & 3) : edac_mc_find_csrow_by_page(mci, block_page); /* e752x mc reads 34:6 of the DRAM linear address */ edac_mc_handle_ue(mci, block_page, - offset_in_page(error_2b << 4), - row, "e752x UE from Read"); + offset_in_page(error_2b << 4), + row, "e752x UE from Read"); } if (error_one & 0x0404) { error_2b = scrb_add; @@ -332,19 +331,20 @@ static void do_process_ue(struct mem_ctl_info *mci, u16 error_one, block_page = error_2b >> (PAGE_SHIFT - 4); row = pvt->mc_symmetric ? - /* chip select are bits 14 & 13 */ + /* chip select are bits 14 & 13 */ ((block_page >> 1) & 3) : edac_mc_find_csrow_by_page(mci, block_page); /* e752x mc reads 34:6 of the DRAM linear address */ edac_mc_handle_ue(mci, block_page, - offset_in_page(error_2b << 4), - row, "e752x UE from Scruber"); + offset_in_page(error_2b << 4), + row, "e752x UE from Scruber"); } } static inline void process_ue(struct mem_ctl_info *mci, u16 error_one, - u32 ded_add, u32 scrb_add, int *error_found, int handle_error) + u32 ded_add, u32 scrb_add, int *error_found, + int handle_error) { *error_found = 1; @@ -353,7 +353,7 @@ static inline void process_ue(struct mem_ctl_info *mci, u16 error_one, } static inline void process_ue_no_info_wr(struct mem_ctl_info *mci, - int *error_found, int handle_error) + int *error_found, int handle_error) { *error_found = 1; @@ -365,24 +365,24 @@ static inline void process_ue_no_info_wr(struct mem_ctl_info *mci, } static void do_process_ded_retry(struct mem_ctl_info *mci, u16 error, - u32 retry_add) + u32 retry_add) { u32 error_1b, page; int row; - struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; + struct e752x_pvt *pvt = (struct e752x_pvt *)mci->pvt_info; error_1b = retry_add; - page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */ - row = pvt->mc_symmetric ? - ((page >> 1) & 3) : /* chip select are bits 14 & 13 */ + page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */ + row = pvt->mc_symmetric ? ((page >> 1) & 3) : /* chip select are bits 14 & 13 */ edac_mc_find_csrow_by_page(mci, page); e752x_mc_printk(mci, KERN_WARNING, - "CE page 0x%lx, row %d : Memory read retry\n", - (long unsigned int) page, row); + "CE page 0x%lx, row %d : Memory read retry\n", + (long unsigned int)page, row); } static inline void process_ded_retry(struct mem_ctl_info *mci, u16 error, - u32 retry_add, int *error_found, int handle_error) + u32 retry_add, int *error_found, + int handle_error) { *error_found = 1; @@ -391,7 +391,7 @@ static inline void process_ded_retry(struct mem_ctl_info *mci, u16 error, } static inline void process_threshold_ce(struct mem_ctl_info *mci, u16 error, - int *error_found, int handle_error) + int *error_found, int handle_error) { *error_found = 1; @@ -420,7 +420,7 @@ static void do_global_error(int fatal, u32 errors) } static inline void global_error(int fatal, u32 errors, int *error_found, - int handle_error) + int handle_error) { *error_found = 1; @@ -447,7 +447,7 @@ static void do_hub_error(int fatal, u8 errors) } static inline void hub_error(int fatal, u8 errors, int *error_found, - int handle_error) + int handle_error) { *error_found = 1; @@ -505,7 +505,7 @@ static void do_sysbus_error(int fatal, u32 errors) } static inline void sysbus_error(int fatal, u32 errors, int *error_found, - int handle_error) + int handle_error) { *error_found = 1; @@ -514,7 +514,7 @@ static inline void sysbus_error(int fatal, u32 errors, int *error_found, } static void e752x_check_hub_interface(struct e752x_error_info *info, - int *error_found, int handle_error) + int *error_found, int handle_error) { u8 stat8; @@ -522,33 +522,32 @@ static void e752x_check_hub_interface(struct e752x_error_info *info, stat8 = info->hi_ferr; - if(stat8 & 0x7f) { /* Error, so process */ + if (stat8 & 0x7f) { /* Error, so process */ stat8 &= 0x7f; - if(stat8 & 0x2b) + if (stat8 & 0x2b) hub_error(1, stat8 & 0x2b, error_found, handle_error); - if(stat8 & 0x54) + if (stat8 & 0x54) hub_error(0, stat8 & 0x54, error_found, handle_error); } - //pci_read_config_byte(dev,E752X_HI_NERR,&stat8); stat8 = info->hi_nerr; - if(stat8 & 0x7f) { /* Error, so process */ + if (stat8 & 0x7f) { /* Error, so process */ stat8 &= 0x7f; if (stat8 & 0x2b) hub_error(1, stat8 & 0x2b, error_found, handle_error); - if(stat8 & 0x54) + if (stat8 & 0x54) hub_error(0, stat8 & 0x54, error_found, handle_error); } } static void e752x_check_sysbus(struct e752x_error_info *info, - int *error_found, int handle_error) + int *error_found, int handle_error) { u32 stat32, error32; @@ -556,47 +555,47 @@ static void e752x_check_sysbus(struct e752x_error_info *info, stat32 = info->sysbus_ferr + (info->sysbus_nerr << 16); if (stat32 == 0) - return; /* no errors */ + return; /* no errors */ error32 = (stat32 >> 16) & 0x3ff; stat32 = stat32 & 0x3ff; - if(stat32 & 0x087) + if (stat32 & 0x087) sysbus_error(1, stat32 & 0x087, error_found, handle_error); - if(stat32 & 0x378) + if (stat32 & 0x378) sysbus_error(0, stat32 & 0x378, error_found, handle_error); - if(error32 & 0x087) + if (error32 & 0x087) sysbus_error(1, error32 & 0x087, error_found, handle_error); - if(error32 & 0x378) + if (error32 & 0x378) sysbus_error(0, error32 & 0x378, error_found, handle_error); } -static void e752x_check_membuf (struct e752x_error_info *info, - int *error_found, int handle_error) +static void e752x_check_membuf(struct e752x_error_info *info, + int *error_found, int handle_error) { u8 stat8; stat8 = info->buf_ferr; - if (stat8 & 0x0f) { /* Error, so process */ + if (stat8 & 0x0f) { /* Error, so process */ stat8 &= 0x0f; membuf_error(stat8, error_found, handle_error); } stat8 = info->buf_nerr; - if (stat8 & 0x0f) { /* Error, so process */ + if (stat8 & 0x0f) { /* Error, so process */ stat8 &= 0x0f; membuf_error(stat8, error_found, handle_error); } } -static void e752x_check_dram (struct mem_ctl_info *mci, - struct e752x_error_info *info, int *error_found, - int handle_error) +static void e752x_check_dram(struct mem_ctl_info *mci, + struct e752x_error_info *info, int *error_found, + int handle_error) { u16 error_one, error_next; @@ -604,55 +603,52 @@ static void e752x_check_dram (struct mem_ctl_info *mci, error_next = info->dram_nerr; /* decode and report errors */ - if(error_one & 0x0101) /* check first error correctable */ + if (error_one & 0x0101) /* check first error correctable */ process_ce(mci, error_one, info->dram_sec1_add, - info->dram_sec1_syndrome, error_found, - handle_error); + info->dram_sec1_syndrome, error_found, handle_error); - if(error_next & 0x0101) /* check next error correctable */ + if (error_next & 0x0101) /* check next error correctable */ process_ce(mci, error_next, info->dram_sec2_add, - info->dram_sec2_syndrome, error_found, - handle_error); + info->dram_sec2_syndrome, error_found, handle_error); - if(error_one & 0x4040) + if (error_one & 0x4040) process_ue_no_info_wr(mci, error_found, handle_error); - if(error_next & 0x4040) + if (error_next & 0x4040) process_ue_no_info_wr(mci, error_found, handle_error); - if(error_one & 0x2020) + if (error_one & 0x2020) process_ded_retry(mci, error_one, info->dram_retr_add, - error_found, handle_error); + error_found, handle_error); - if(error_next & 0x2020) + if (error_next & 0x2020) process_ded_retry(mci, error_next, info->dram_retr_add, - error_found, handle_error); + error_found, handle_error); - if(error_one & 0x0808) - process_threshold_ce(mci, error_one, error_found, - handle_error); + if (error_one & 0x0808) + process_threshold_ce(mci, error_one, error_found, handle_error); - if(error_next & 0x0808) + if (error_next & 0x0808) process_threshold_ce(mci, error_next, error_found, - handle_error); + handle_error); - if(error_one & 0x0606) + if (error_one & 0x0606) process_ue(mci, error_one, info->dram_ded_add, - info->dram_scrb_add, error_found, handle_error); + info->dram_scrb_add, error_found, handle_error); - if(error_next & 0x0606) + if (error_next & 0x0606) process_ue(mci, error_next, info->dram_ded_add, - info->dram_scrb_add, error_found, handle_error); + info->dram_scrb_add, error_found, handle_error); } -static void e752x_get_error_info (struct mem_ctl_info *mci, - struct e752x_error_info *info) +static void e752x_get_error_info(struct mem_ctl_info *mci, + struct e752x_error_info *info) { struct pci_dev *dev; struct e752x_pvt *pvt; memset(info, 0, sizeof(*info)); - pvt = (struct e752x_pvt *) mci->pvt_info; + pvt = (struct e752x_pvt *)mci->pvt_info; dev = pvt->dev_d0f1; pci_read_config_dword(dev, E752X_FERR_GLOBAL, &info->ferr_global); @@ -661,8 +657,7 @@ static void e752x_get_error_info (struct mem_ctl_info *mci, pci_read_config_word(dev, E752X_SYSBUS_FERR, &info->sysbus_ferr); pci_read_config_byte(dev, E752X_BUF_FERR, &info->buf_ferr); - pci_read_config_word(dev, E752X_DRAM_FERR, - &info->dram_ferr); + pci_read_config_word(dev, E752X_DRAM_FERR, &info->dram_ferr); pci_read_config_dword(dev, E752X_DRAM_SEC1_ADD, &info->dram_sec1_add); pci_read_config_word(dev, E752X_DRAM_SEC1_SYNDROME, @@ -688,7 +683,7 @@ static void e752x_get_error_info (struct mem_ctl_info *mci, if (info->dram_ferr) pci_write_bits16(pvt->bridge_ck, E752X_DRAM_FERR, - info->dram_ferr, info->dram_ferr); + info->dram_ferr, info->dram_ferr); pci_write_config_dword(dev, E752X_FERR_GLOBAL, info->ferr_global); @@ -701,8 +696,7 @@ static void e752x_get_error_info (struct mem_ctl_info *mci, pci_read_config_word(dev, E752X_SYSBUS_NERR, &info->sysbus_nerr); pci_read_config_byte(dev, E752X_BUF_NERR, &info->buf_nerr); - pci_read_config_word(dev, E752X_DRAM_NERR, - &info->dram_nerr); + pci_read_config_word(dev, E752X_DRAM_NERR, &info->dram_nerr); pci_read_config_dword(dev, E752X_DRAM_SEC2_ADD, &info->dram_sec2_add); pci_read_config_word(dev, E752X_DRAM_SEC2_SYNDROME, @@ -722,15 +716,16 @@ static void e752x_get_error_info (struct mem_ctl_info *mci, if (info->dram_nerr) pci_write_bits16(pvt->bridge_ck, E752X_DRAM_NERR, - info->dram_nerr, info->dram_nerr); + info->dram_nerr, info->dram_nerr); pci_write_config_dword(dev, E752X_NERR_GLOBAL, info->nerr_global); } } -static int e752x_process_error_info (struct mem_ctl_info *mci, - struct e752x_error_info *info, int handle_errors) +static int e752x_process_error_info(struct mem_ctl_info *mci, + struct e752x_error_info *info, + int handle_errors) { u32 error32, stat32; int error_found; @@ -776,26 +771,38 @@ static inline int dual_channel_active(u16 ddrcsr) return (((ddrcsr >> 12) & 3) == 3); } +/* Remap csrow index numbers if map_type is "reverse" + */ +static inline int remap_csrow_index(struct mem_ctl_info *mci, int index) +{ + struct e752x_pvt *pvt = mci->pvt_info; + + if (!pvt->map_type) + return (7 - index); + + return (index); +} + static void e752x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, - u16 ddrcsr) + u16 ddrcsr) { struct csrow_info *csrow; unsigned long last_cumul_size; int index, mem_dev, drc_chan; - int drc_drbg; /* DRB granularity 0=64mb, 1=128mb */ - int drc_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */ + int drc_drbg; /* DRB granularity 0=64mb, 1=128mb */ + int drc_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */ u8 value; u32 dra, drc, cumul_size; dra = 0; - for (index=0; index < 4; index++) { + for (index = 0; index < 4; index++) { u8 dra_reg; - pci_read_config_byte(pdev, E752X_DRA+index, &dra_reg); + pci_read_config_byte(pdev, E752X_DRA + index, &dra_reg); dra |= dra_reg << (index * 8); } pci_read_config_dword(pdev, E752X_DRC, &drc); drc_chan = dual_channel_active(ddrcsr); - drc_drbg = drc_chan + 1; /* 128 in dual mode, 64 in single */ + drc_drbg = drc_chan + 1; /* 128 in dual mode, 64 in single */ drc_ddim = (drc >> 20) & 0x3; /* The dram row boundary (DRB) reg values are boundary address for @@ -806,7 +813,7 @@ static void e752x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) { /* mem_dev 0=x8, 1=x4 */ mem_dev = (dra >> (index * 4 + 2)) & 0x3; - csrow = &mci->csrows[index]; + csrow = &mci->csrows[remap_csrow_index(mci, index)]; mem_dev = (mem_dev == 2); pci_read_config_byte(pdev, E752X_DRB + index, &value); @@ -843,10 +850,10 @@ static void e752x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, } static void e752x_init_mem_map_table(struct pci_dev *pdev, - struct e752x_pvt *pvt) + struct e752x_pvt *pvt) { int index; - u8 value, last, row, stat8; + u8 value, last, row; last = 0; row = 0; @@ -858,7 +865,7 @@ static void e752x_init_mem_map_table(struct pci_dev *pdev, /* no dimm in the slot, so flag it as empty */ pvt->map[index] = 0xff; pvt->map[index + 1] = 0xff; - } else { /* there is a dimm in the slot */ + } else { /* there is a dimm in the slot */ pvt->map[index] = row; row++; last = value; @@ -866,31 +873,25 @@ static void e752x_init_mem_map_table(struct pci_dev *pdev, * sided */ pci_read_config_byte(pdev, E752X_DRB + index + 1, - &value); - pvt->map[index + 1] = (value == last) ? - 0xff : /* the dimm is single sided, - so flag as empty */ - row; /* this is a double sided dimm - to save the next row # */ + &value); + + /* the dimm is single sided, so flag as empty */ + /* this is a double sided dimm to save the next row #*/ + pvt->map[index + 1] = (value == last) ? 0xff : row; row++; last = value; } } - - /* set the map type. 1 = normal, 0 = reversed */ - pci_read_config_byte(pdev, E752X_DRM, &stat8); - pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f)); } /* Return 0 on success or 1 on failure. */ static int e752x_get_devs(struct pci_dev *pdev, int dev_idx, - struct e752x_pvt *pvt) + struct e752x_pvt *pvt) { struct pci_dev *dev; pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL, - pvt->dev_info->err_dev, - pvt->bridge_ck); + pvt->dev_info->err_dev, pvt->bridge_ck); if (pvt->bridge_ck == NULL) pvt->bridge_ck = pci_scan_single_device(pdev->bus, @@ -898,13 +899,13 @@ static int e752x_get_devs(struct pci_dev *pdev, int dev_idx, if (pvt->bridge_ck == NULL) { e752x_printk(KERN_ERR, "error reporting device not found:" - "vendor %x device 0x%x (broken BIOS?)\n", - PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].err_dev); + "vendor %x device 0x%x (broken BIOS?)\n", + PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].err_dev); return 1; } dev = pci_get_device(PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].ctl_dev, - NULL); + NULL); if (dev == NULL) goto fail; @@ -942,12 +943,22 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx) struct mem_ctl_info *mci; struct e752x_pvt *pvt; u16 ddrcsr; - int drc_chan; /* Number of channels 0=1chan,1=2chan */ + int drc_chan; /* Number of channels 0=1chan,1=2chan */ struct e752x_error_info discard; debugf0("%s(): mci\n", __func__); debugf0("Starting Probe1\n"); + /* make sure error reporting method is sane */ + switch (edac_op_state) { + case EDAC_OPSTATE_POLL: + case EDAC_OPSTATE_NMI: + break; + default: + edac_op_state = EDAC_OPSTATE_POLL; + break; + } + /* check to see if device 0 function 1 is enabled; if it isn't, we * assume the BIOS has reserved it for a reason and is expecting * exclusive access, we take care not to violate that assumption and @@ -966,7 +977,7 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx) /* Dual channel = 1, Single channel = 0 */ drc_chan = dual_channel_active(ddrcsr); - mci = edac_mc_alloc(sizeof(*pvt), E752X_NR_CSROWS, drc_chan + 1); + mci = edac_mc_alloc(sizeof(*pvt), E752X_NR_CSROWS, drc_chan + 1, 0); if (mci == NULL) { return -ENOMEM; @@ -975,14 +986,14 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx) debugf3("%s(): init mci\n", __func__); mci->mtype_cap = MEM_FLAG_RDDR; mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED | - EDAC_FLAG_S4ECD4ED; + EDAC_FLAG_S4ECD4ED; /* FIXME - what if different memory types are in different csrows? */ mci->mod_name = EDAC_MOD_STR; mci->mod_ver = E752X_REVISION; mci->dev = &pdev->dev; debugf3("%s(): init pvt\n", __func__); - pvt = (struct e752x_pvt *) mci->pvt_info; + pvt = (struct e752x_pvt *)mci->pvt_info; pvt->dev_info = &e752x_devs[dev_idx]; pvt->mc_symmetric = ((ddrcsr & 0x10) != 0); @@ -993,16 +1004,20 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx) debugf3("%s(): more mci init\n", __func__); mci->ctl_name = pvt->dev_info->ctl_name; + mci->dev_name = pci_name(pdev); mci->edac_check = e752x_check; mci->ctl_page_to_phys = ctl_page_to_phys; - e752x_init_csrows(mci, pdev, ddrcsr); - e752x_init_mem_map_table(pdev, pvt); - - /* set the map type. 1 = normal, 0 = reversed */ + /* set the map type. 1 = normal, 0 = reversed + * Must be set before e752x_init_csrows in case csrow mapping + * is reversed. + */ pci_read_config_byte(pdev, E752X_DRM, &stat8); pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f)); + e752x_init_csrows(mci, pdev, ddrcsr); + e752x_init_mem_map_table(pdev, pvt); + mci->edac_cap |= EDAC_FLAG_NONE; debugf3("%s(): tolm, remapbase, remaplimit\n", __func__); @@ -1014,19 +1029,29 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx) pci_read_config_word(pdev, E752X_REMAPLIMIT, &pci_data); pvt->remaplimit = ((u32) pci_data) << 14; e752x_printk(KERN_INFO, - "tolm = %x, remapbase = %x, remaplimit = %x\n", pvt->tolm, - pvt->remapbase, pvt->remaplimit); + "tolm = %x, remapbase = %x, remaplimit = %x\n", + pvt->tolm, pvt->remapbase, pvt->remaplimit); /* Here we assume that we will never see multiple instances of this * type of memory controller. The ID is therefore hardcoded to 0. */ - if (edac_mc_add_mc(mci,0)) { + if (edac_mc_add_mc(mci)) { debugf3("%s(): failed edac_mc_add_mc()\n", __func__); goto fail; } e752x_init_error_reporting_regs(pvt); - e752x_get_error_info(mci, &discard); /* clear other MCH errors */ + e752x_get_error_info(mci, &discard); /* clear other MCH errors */ + + /* allocating generic PCI control info */ + e752x_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!e752x_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } /* get this far and it's successful */ debugf3("%s(): success\n", __func__); @@ -1043,12 +1068,12 @@ fail: /* returns count (>= 0), or negative on error */ static int __devinit e752x_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { debugf0("%s()\n", __func__); /* wake up and enable device */ - if(pci_enable_device(pdev) < 0) + if (pci_enable_device(pdev) < 0) return -EIO; return e752x_probe1(pdev, ent->driver_data); @@ -1061,10 +1086,13 @@ static void __devexit e752x_remove_one(struct pci_dev *pdev) debugf0("%s()\n", __func__); + if (e752x_pci) + edac_pci_release_generic_ctl(e752x_pci); + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) return; - pvt = (struct e752x_pvt *) mci->pvt_info; + pvt = (struct e752x_pvt *)mci->pvt_info; pci_dev_put(pvt->dev_d0f0); pci_dev_put(pvt->dev_d0f1); pci_dev_put(pvt->bridge_ck); @@ -1073,20 +1101,17 @@ static void __devexit e752x_remove_one(struct pci_dev *pdev) static const struct pci_device_id e752x_pci_tbl[] __devinitdata = { { - PCI_VEND_DEV(INTEL, 7520_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - E7520 - }, + PCI_VEND_DEV(INTEL, 7520_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7520}, { - PCI_VEND_DEV(INTEL, 7525_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - E7525 - }, + PCI_VEND_DEV(INTEL, 7525_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7525}, { - PCI_VEND_DEV(INTEL, 7320_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - E7320 - }, + PCI_VEND_DEV(INTEL, 7320_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7320}, { - 0, - } /* 0 terminated list. */ + 0, + } /* 0 terminated list. */ }; MODULE_DEVICE_TABLE(pci, e752x_pci_tbl); @@ -1122,5 +1147,6 @@ MODULE_DESCRIPTION("MC support for Intel e752x memory controllers"); module_param(force_function_unhide, int, 0444); MODULE_PARM_DESC(force_function_unhide, "if BIOS sets Dev0:Fun1 up as hidden:" -" 1=force unhide and hope BIOS doesn't fight driver for Dev0:Fun1 access"); - + " 1=force unhide and hope BIOS doesn't fight driver for Dev0:Fun1 access"); +module_param(edac_op_state, int, 0444); +MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); diff --git a/drivers/edac/e7xxx_edac.c b/drivers/edac/e7xxx_edac.c index 310d91b41c96..96ecc4926641 100644 --- a/drivers/edac/e7xxx_edac.c +++ b/drivers/edac/e7xxx_edac.c @@ -27,9 +27,10 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include "edac_mc.h" +#include <linux/edac.h> +#include "edac_core.h" -#define E7XXX_REVISION " Ver: 2.0.1 " __DATE__ +#define E7XXX_REVISION " Ver: 2.0.2 " __DATE__ #define EDAC_MOD_STR "e7xxx_edac" #define e7xxx_printk(level, fmt, arg...) \ @@ -143,23 +144,21 @@ struct e7xxx_error_info { u32 dram_uelog_add; }; +static struct edac_pci_ctl_info *e7xxx_pci; + static const struct e7xxx_dev_info e7xxx_devs[] = { [E7500] = { .err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR, - .ctl_name = "E7500" - }, + .ctl_name = "E7500"}, [E7501] = { .err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR, - .ctl_name = "E7501" - }, + .ctl_name = "E7501"}, [E7505] = { .err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR, - .ctl_name = "E7505" - }, + .ctl_name = "E7505"}, [E7205] = { .err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR, - .ctl_name = "E7205" - }, + .ctl_name = "E7205"}, }; /* FIXME - is this valid for both SECDED and S4ECD4ED? */ @@ -180,15 +179,15 @@ static inline int e7xxx_find_channel(u16 syndrome) } static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci, - unsigned long page) + unsigned long page) { u32 remap; - struct e7xxx_pvt *pvt = (struct e7xxx_pvt *) mci->pvt_info; + struct e7xxx_pvt *pvt = (struct e7xxx_pvt *)mci->pvt_info; debugf3("%s()\n", __func__); if ((page < pvt->tolm) || - ((page >= 0x100000) && (page < pvt->remapbase))) + ((page >= 0x100000) && (page < pvt->remapbase))) return page; remap = (page - pvt->tolm) + pvt->remapbase; @@ -200,8 +199,7 @@ static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci, return pvt->tolm - 1; } -static void process_ce(struct mem_ctl_info *mci, - struct e7xxx_error_info *info) +static void process_ce(struct mem_ctl_info *mci, struct e7xxx_error_info *info) { u32 error_1b, page; u16 syndrome; @@ -212,7 +210,7 @@ static void process_ce(struct mem_ctl_info *mci, /* read the error address */ error_1b = info->dram_celog_add; /* FIXME - should use PAGE_SHIFT */ - page = error_1b >> 6; /* convert the address to 4k page */ + page = error_1b >> 6; /* convert the address to 4k page */ /* read the syndrome */ syndrome = info->dram_celog_syndrome; /* FIXME - check for -1 */ @@ -228,8 +226,7 @@ static void process_ce_no_info(struct mem_ctl_info *mci) edac_mc_handle_ce_no_info(mci, "e7xxx CE log register overflow"); } -static void process_ue(struct mem_ctl_info *mci, - struct e7xxx_error_info *info) +static void process_ue(struct mem_ctl_info *mci, struct e7xxx_error_info *info) { u32 error_2b, block_page; int row; @@ -238,7 +235,7 @@ static void process_ue(struct mem_ctl_info *mci, /* read the error address */ error_2b = info->dram_uelog_add; /* FIXME - should use PAGE_SHIFT */ - block_page = error_2b >> 6; /* convert to 4k address */ + block_page = error_2b >> 6; /* convert to 4k address */ row = edac_mc_find_csrow_by_page(mci, block_page); edac_mc_handle_ue(mci, block_page, 0, row, "e7xxx UE"); } @@ -249,16 +246,14 @@ static void process_ue_no_info(struct mem_ctl_info *mci) edac_mc_handle_ue_no_info(mci, "e7xxx UE log register overflow"); } -static void e7xxx_get_error_info (struct mem_ctl_info *mci, - struct e7xxx_error_info *info) +static void e7xxx_get_error_info(struct mem_ctl_info *mci, + struct e7xxx_error_info *info) { struct e7xxx_pvt *pvt; - pvt = (struct e7xxx_pvt *) mci->pvt_info; - pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_FERR, - &info->dram_ferr); - pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_NERR, - &info->dram_nerr); + pvt = (struct e7xxx_pvt *)mci->pvt_info; + pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_FERR, &info->dram_ferr); + pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_NERR, &info->dram_nerr); if ((info->dram_ferr & 1) || (info->dram_nerr & 1)) { pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_CELOG_ADD, @@ -279,8 +274,9 @@ static void e7xxx_get_error_info (struct mem_ctl_info *mci, pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_NERR, 0x03, 0x03); } -static int e7xxx_process_error_info (struct mem_ctl_info *mci, - struct e7xxx_error_info *info, int handle_errors) +static int e7xxx_process_error_info(struct mem_ctl_info *mci, + struct e7xxx_error_info *info, + int handle_errors) { int error_found; @@ -341,7 +337,6 @@ static inline int dual_channel_active(u32 drc, int dev_idx) return (dev_idx == E7501) ? ((drc >> 22) & 0x1) : 1; } - /* Return DRB granularity (0=32mb, 1=64mb). */ static inline int drb_granularity(u32 drc, int dev_idx) { @@ -349,9 +344,8 @@ static inline int drb_granularity(u32 drc, int dev_idx) return (dev_idx == E7501) ? ((drc >> 18) & 0x3) : 1; } - static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, - int dev_idx, u32 drc) + int dev_idx, u32 drc) { unsigned long last_cumul_size; int index; @@ -419,10 +413,21 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx) struct e7xxx_error_info discard; debugf0("%s(): mci\n", __func__); + + /* make sure error reporting method is sane */ + switch (edac_op_state) { + case EDAC_OPSTATE_POLL: + case EDAC_OPSTATE_NMI: + break; + default: + edac_op_state = EDAC_OPSTATE_POLL; + break; + } + pci_read_config_dword(pdev, E7XXX_DRC, &drc); drc_chan = dual_channel_active(drc, dev_idx); - mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1); + mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1, 0); if (mci == NULL) return -ENOMEM; @@ -430,17 +435,16 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx) debugf3("%s(): init mci\n", __func__); mci->mtype_cap = MEM_FLAG_RDDR; mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED | - EDAC_FLAG_S4ECD4ED; + EDAC_FLAG_S4ECD4ED; /* FIXME - what if different memory types are in different csrows? */ mci->mod_name = EDAC_MOD_STR; mci->mod_ver = E7XXX_REVISION; mci->dev = &pdev->dev; debugf3("%s(): init pvt\n", __func__); - pvt = (struct e7xxx_pvt *) mci->pvt_info; + pvt = (struct e7xxx_pvt *)mci->pvt_info; pvt->dev_info = &e7xxx_devs[dev_idx]; pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL, - pvt->dev_info->err_dev, - pvt->bridge_ck); + pvt->dev_info->err_dev, pvt->bridge_ck); if (!pvt->bridge_ck) { e7xxx_printk(KERN_ERR, "error reporting device not found:" @@ -451,6 +455,7 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx) debugf3("%s(): more mci init\n", __func__); mci->ctl_name = pvt->dev_info->ctl_name; + mci->dev_name = pci_name(pdev); mci->edac_check = e7xxx_check; mci->ctl_page_to_phys = ctl_page_to_phys; e7xxx_init_csrows(mci, pdev, dev_idx, drc); @@ -473,11 +478,22 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx) /* Here we assume that we will never see multiple instances of this * type of memory controller. The ID is therefore hardcoded to 0. */ - if (edac_mc_add_mc(mci,0)) { + if (edac_mc_add_mc(mci)) { debugf3("%s(): failed edac_mc_add_mc()\n", __func__); goto fail1; } + /* allocating generic PCI control info */ + e7xxx_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!e7xxx_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + /* get this far and it's successful */ debugf3("%s(): success\n", __func__); return 0; @@ -493,7 +509,7 @@ fail0: /* returns count (>= 0), or negative on error */ static int __devinit e7xxx_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { debugf0("%s()\n", __func__); @@ -509,34 +525,33 @@ static void __devexit e7xxx_remove_one(struct pci_dev *pdev) debugf0("%s()\n", __func__); + if (e7xxx_pci) + edac_pci_release_generic_ctl(e7xxx_pci); + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) return; - pvt = (struct e7xxx_pvt *) mci->pvt_info; + pvt = (struct e7xxx_pvt *)mci->pvt_info; pci_dev_put(pvt->bridge_ck); edac_mc_free(mci); } static const struct pci_device_id e7xxx_pci_tbl[] __devinitdata = { { - PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - E7205 - }, + PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7205}, { - PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - E7500 - }, + PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7500}, { - PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - E7501 - }, + PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7501}, { - PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - E7505 - }, + PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + E7505}, { - 0, - } /* 0 terminated list. */ + 0, + } /* 0 terminated list. */ }; MODULE_DEVICE_TABLE(pci, e7xxx_pci_tbl); @@ -563,5 +578,7 @@ module_exit(e7xxx_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh et al\n" - "Based on.work by Dan Hollis et al"); + "Based on.work by Dan Hollis et al"); MODULE_DESCRIPTION("MC support for Intel e7xxx memory controllers"); +module_param(edac_op_state, int, 0444); +MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); diff --git a/drivers/edac/edac_mc.h b/drivers/edac/edac_core.h index 713444cc4105..4e6bad15c4ba 100644 --- a/drivers/edac/edac_mc.h +++ b/drivers/edac/edac_core.h @@ -1,6 +1,7 @@ /* - * MC kernel module - * (C) 2003 Linux Networx (http://lnxi.com) + * Defines, structures, APIs for edac_core module + * + * (C) 2007 Linux Networx (http://lnxi.com) * This file may be distributed under the terms of the * GNU General Public License. * @@ -11,12 +12,13 @@ * NMI handling support added by * Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com> * - * $Id: edac_mc.h,v 1.4.2.10 2005/10/05 00:43:44 dsp_llnl Exp $ + * Refactored for multi-source files: + * Doug Thompson <norsk5@xmission.com> * */ -#ifndef _EDAC_MC_H_ -#define _EDAC_MC_H_ +#ifndef _EDAC_CORE_H_ +#define _EDAC_CORE_H_ #include <linux/kernel.h> #include <linux/types.h> @@ -30,9 +32,14 @@ #include <linux/completion.h> #include <linux/kobject.h> #include <linux/platform_device.h> +#include <linux/sysdev.h> +#include <linux/workqueue.h> +#include <linux/version.h> #define EDAC_MC_LABEL_LEN 31 -#define MC_PROC_NAME_MAX_LEN 7 +#define EDAC_DEVICE_NAME_LEN 31 +#define EDAC_ATTRIB_VALUE_LEN 15 +#define MC_PROC_NAME_MAX_LEN 7 #if PAGE_SHIFT < 20 #define PAGES_TO_MiB( pages ) ( ( pages ) >> ( 20 - PAGE_SHIFT ) ) @@ -49,6 +56,14 @@ #define edac_mc_chipset_printk(mci, level, prefix, fmt, arg...) \ printk(level "EDAC " prefix " MC%d: " fmt, mci->mc_idx, ##arg) +/* edac_device printk */ +#define edac_device_printk(ctl, level, fmt, arg...) \ + printk(level "EDAC DEVICE%d: " fmt, ctl->dev_idx, ##arg) + +/* edac_pci printk */ +#define edac_pci_printk(ctl, level, fmt, arg...) \ + printk(level "EDAC PCI%d: " fmt, ctl->pci_idx, ##arg) + /* prefixes for edac_printk() and edac_mc_printk() */ #define EDAC_MC "MC" #define EDAC_PCI "PCI" @@ -60,7 +75,7 @@ extern int edac_debug_level; #define edac_debug_printk(level, fmt, arg...) \ do { \ if (level <= edac_debug_level) \ - edac_printk(KERN_DEBUG, EDAC_DEBUG, fmt, ##arg); \ + edac_printk(KERN_EMERG, EDAC_DEBUG, fmt, ##arg); \ } while(0) #define debugf0( ... ) edac_debug_printk(0, __VA_ARGS__ ) @@ -69,7 +84,7 @@ extern int edac_debug_level; #define debugf3( ... ) edac_debug_printk(3, __VA_ARGS__ ) #define debugf4( ... ) edac_debug_printk(4, __VA_ARGS__ ) -#else /* !CONFIG_EDAC_DEBUG */ +#else /* !CONFIG_EDAC_DEBUG */ #define debugf0( ... ) #define debugf1( ... ) @@ -77,18 +92,14 @@ extern int edac_debug_level; #define debugf3( ... ) #define debugf4( ... ) -#endif /* !CONFIG_EDAC_DEBUG */ +#endif /* !CONFIG_EDAC_DEBUG */ #define BIT(x) (1 << (x)) #define PCI_VEND_DEV(vend, dev) PCI_VENDOR_ID_ ## vend, \ PCI_DEVICE_ID_ ## vend ## _ ## dev -#if defined(CONFIG_X86) && defined(CONFIG_PCI) -#define dev_name(dev) pci_name(to_pci_dev(dev)) -#else -#define dev_name(dev) to_platform_device(dev)->name -#endif +#define dev_name(dev) (dev)->dev_name /* memory devices */ enum dev_type { @@ -124,8 +135,9 @@ enum mem_type { MEM_DDR, /* Double data rate SDRAM */ MEM_RDDR, /* Registered Double data rate SDRAM */ MEM_RMBS, /* Rambus DRAM */ - MEM_DDR2, /* DDR2 RAM */ - MEM_FB_DDR2, /* fully buffered DDR2 */ + MEM_DDR2, /* DDR2 RAM */ + MEM_FB_DDR2, /* fully buffered DDR2 */ + MEM_RDDR2, /* Registered DDR2 RAM */ }; #define MEM_FLAG_EMPTY BIT(MEM_EMPTY) @@ -141,6 +153,7 @@ enum mem_type { #define MEM_FLAG_RMBS BIT(MEM_RMBS) #define MEM_FLAG_DDR2 BIT(MEM_DDR2) #define MEM_FLAG_FB_DDR2 BIT(MEM_FB_DDR2) +#define MEM_FLAG_RDDR2 BIT(MEM_RDDR2) /* chipset Error Detection and Correction capabilities and mode */ enum edac_type { @@ -181,16 +194,23 @@ enum scrub_type { }; #define SCRUB_FLAG_SW_PROG BIT(SCRUB_SW_PROG) -#define SCRUB_FLAG_SW_SRC BIT(SCRUB_SW_SRC_CORR) -#define SCRUB_FLAG_SW_PROG_SRC BIT(SCRUB_SW_PROG_SRC_CORR) +#define SCRUB_FLAG_SW_SRC BIT(SCRUB_SW_SRC) +#define SCRUB_FLAG_SW_PROG_SRC BIT(SCRUB_SW_PROG_SRC) #define SCRUB_FLAG_SW_TUN BIT(SCRUB_SW_SCRUB_TUNABLE) #define SCRUB_FLAG_HW_PROG BIT(SCRUB_HW_PROG) -#define SCRUB_FLAG_HW_SRC BIT(SCRUB_HW_SRC_CORR) -#define SCRUB_FLAG_HW_PROG_SRC BIT(SCRUB_HW_PROG_SRC_CORR) +#define SCRUB_FLAG_HW_SRC BIT(SCRUB_HW_SRC) +#define SCRUB_FLAG_HW_PROG_SRC BIT(SCRUB_HW_PROG_SRC) #define SCRUB_FLAG_HW_TUN BIT(SCRUB_HW_TUNABLE) /* FIXME - should have notify capabilities: NMI, LOG, PROC, etc */ +/* EDAC internal operation states */ +#define OP_ALLOC 0x100 +#define OP_RUNNING_POLL 0x201 +#define OP_RUNNING_INTERRUPT 0x202 +#define OP_RUNNING_POLL_INTR 0x203 +#define OP_OFFLINE 0x300 + /* * There are several things to be aware of that aren't at all obvious: * @@ -276,7 +296,7 @@ enum scrub_type { struct channel_info { int chan_idx; /* channel index */ u32 ce_count; /* Correctable Errors for this CHANNEL */ - char label[EDAC_MC_LABEL_LEN + 1]; /* DIMM label on motherboard */ + char label[EDAC_MC_LABEL_LEN + 1]; /* DIMM label on motherboard */ struct csrow_info *csrow; /* the parent */ }; @@ -297,15 +317,29 @@ struct csrow_info { struct mem_ctl_info *mci; /* the parent */ struct kobject kobj; /* sysfs kobject for this csrow */ - struct completion kobj_complete; - /* FIXME the number of CHANNELs might need to become dynamic */ + /* channel information for this csrow */ u32 nr_channels; struct channel_info *channels; }; +/* mcidev_sysfs_attribute structure + * used for driver sysfs attributes and in mem_ctl_info + * sysfs top level entries + */ +struct mcidev_sysfs_attribute { + struct attribute attr; + ssize_t (*show)(struct mem_ctl_info *,char *); + ssize_t (*store)(struct mem_ctl_info *, const char *,size_t); +}; + +/* MEMORY controller information structure + */ struct mem_ctl_info { - struct list_head link; /* for global list of mem_ctl_info structs */ + struct list_head link; /* for global list of mem_ctl_info structs */ + + struct module *owner; /* Module owner of this control struct */ + unsigned long mtype_cap; /* memory types supported by mc */ unsigned long edac_ctl_cap; /* Mem controller EDAC capabilities */ unsigned long edac_cap; /* configuration capabilities - this is @@ -322,14 +356,15 @@ struct mem_ctl_info { /* Translates sdram memory scrub rate given in bytes/sec to the internal representation and configures whatever else needs to be configured. - */ - int (*set_sdram_scrub_rate) (struct mem_ctl_info *mci, u32 *bw); + */ + int (*set_sdram_scrub_rate) (struct mem_ctl_info * mci, u32 * bw); /* Get the current sdram memory scrub rate from the internal representation and converts it to the closest matching bandwith in bytes/sec. - */ - int (*get_sdram_scrub_rate) (struct mem_ctl_info *mci, u32 *bw); + */ + int (*get_sdram_scrub_rate) (struct mem_ctl_info * mci, u32 * bw); + /* pointer to edac checking routine */ void (*edac_check) (struct mem_ctl_info * mci); @@ -340,7 +375,7 @@ struct mem_ctl_info { */ /* FIXME - why not send the phys page to begin with? */ unsigned long (*ctl_page_to_phys) (struct mem_ctl_info * mci, - unsigned long page); + unsigned long page); int mc_idx; int nr_csrows; struct csrow_info *csrows; @@ -353,6 +388,7 @@ struct mem_ctl_info { const char *mod_name; const char *mod_ver; const char *ctl_name; + const char *dev_name; char proc_name[MC_PROC_NAME_MAX_LEN + 1]; void *pvt_info; u32 ue_noinfo_count; /* Uncorrectable Errors w/o info */ @@ -369,14 +405,327 @@ struct mem_ctl_info { /* edac sysfs device control */ struct kobject edac_mci_kobj; - struct completion kobj_complete; + + /* Additional top controller level attributes, but specified + * by the low level driver. + * + * Set by the low level driver to provide attributes at the + * controller level, same level as 'ue_count' and 'ce_count' above. + * An array of structures, NULL terminated + * + * If attributes are desired, then set to array of attributes + * If no attributes are desired, leave NULL + */ + struct mcidev_sysfs_attribute *mc_driver_sysfs_attributes; + + /* work struct for this MC */ + struct delayed_work work; + + /* the internal state of this controller instance */ + int op_state; +}; + +/* + * The following are the structures to provide for a generic + * or abstract 'edac_device'. This set of structures and the + * code that implements the APIs for the same, provide for + * registering EDAC type devices which are NOT standard memory. + * + * CPU caches (L1 and L2) + * DMA engines + * Core CPU swithces + * Fabric switch units + * PCIe interface controllers + * other EDAC/ECC type devices that can be monitored for + * errors, etc. + * + * It allows for a 2 level set of hiearchry. For example: + * + * cache could be composed of L1, L2 and L3 levels of cache. + * Each CPU core would have its own L1 cache, while sharing + * L2 and maybe L3 caches. + * + * View them arranged, via the sysfs presentation: + * /sys/devices/system/edac/.. + * + * mc/ <existing memory device directory> + * cpu/cpu0/.. <L1 and L2 block directory> + * /L1-cache/ce_count + * /ue_count + * /L2-cache/ce_count + * /ue_count + * cpu/cpu1/.. <L1 and L2 block directory> + * /L1-cache/ce_count + * /ue_count + * /L2-cache/ce_count + * /ue_count + * ... + * + * the L1 and L2 directories would be "edac_device_block's" + */ + +struct edac_device_counter { + u32 ue_count; + u32 ce_count; +}; + +/* forward reference */ +struct edac_device_ctl_info; +struct edac_device_block; + +/* edac_dev_sysfs_attribute structure + * used for driver sysfs attributes in mem_ctl_info + * for extra controls and attributes: + * like high level error Injection controls + */ +struct edac_dev_sysfs_attribute { + struct attribute attr; + ssize_t (*show)(struct edac_device_ctl_info *, char *); + ssize_t (*store)(struct edac_device_ctl_info *, const char *, size_t); +}; + +/* edac_dev_sysfs_block_attribute structure + * + * used in leaf 'block' nodes for adding controls/attributes + * + * each block in each instance of the containing control structure + * can have an array of the following. The show and store functions + * will be filled in with the show/store function in the + * low level driver. + * + * The 'value' field will be the actual value field used for + * counting + */ +struct edac_dev_sysfs_block_attribute { + struct attribute attr; + ssize_t (*show)(struct kobject *, struct attribute *, char *); + ssize_t (*store)(struct kobject *, struct attribute *, + const char *, size_t); + struct edac_device_block *block; + + unsigned int value; +}; + +/* device block control structure */ +struct edac_device_block { + struct edac_device_instance *instance; /* Up Pointer */ + char name[EDAC_DEVICE_NAME_LEN + 1]; + + struct edac_device_counter counters; /* basic UE and CE counters */ + + int nr_attribs; /* how many attributes */ + + /* this block's attributes, could be NULL */ + struct edac_dev_sysfs_block_attribute *block_attributes; + + /* edac sysfs device control */ + struct kobject kobj; +}; + +/* device instance control structure */ +struct edac_device_instance { + struct edac_device_ctl_info *ctl; /* Up pointer */ + char name[EDAC_DEVICE_NAME_LEN + 4]; + + struct edac_device_counter counters; /* instance counters */ + + u32 nr_blocks; /* how many blocks */ + struct edac_device_block *blocks; /* block array */ + + /* edac sysfs device control */ + struct kobject kobj; +}; + + +/* + * Abstract edac_device control info structure + * + */ +struct edac_device_ctl_info { + /* for global list of edac_device_ctl_info structs */ + struct list_head link; + + struct module *owner; /* Module owner of this control struct */ + + int dev_idx; + + /* Per instance controls for this edac_device */ + int log_ue; /* boolean for logging UEs */ + int log_ce; /* boolean for logging CEs */ + int panic_on_ue; /* boolean for panic'ing on an UE */ + unsigned poll_msec; /* number of milliseconds to poll interval */ + unsigned long delay; /* number of jiffies for poll_msec */ + + /* Additional top controller level attributes, but specified + * by the low level driver. + * + * Set by the low level driver to provide attributes at the + * controller level, same level as 'ue_count' and 'ce_count' above. + * An array of structures, NULL terminated + * + * If attributes are desired, then set to array of attributes + * If no attributes are desired, leave NULL + */ + struct edac_dev_sysfs_attribute *sysfs_attributes; + + /* pointer to main 'edac' class in sysfs */ + struct sysdev_class *edac_class; + + /* the internal state of this controller instance */ + int op_state; + /* work struct for this instance */ + struct delayed_work work; + + /* pointer to edac polling checking routine: + * If NOT NULL: points to polling check routine + * If NULL: Then assumes INTERRUPT operation, where + * MC driver will receive events + */ + void (*edac_check) (struct edac_device_ctl_info * edac_dev); + + struct device *dev; /* pointer to device structure */ + + const char *mod_name; /* module name */ + const char *ctl_name; /* edac controller name */ + const char *dev_name; /* pci/platform/etc... name */ + + void *pvt_info; /* pointer to 'private driver' info */ + + unsigned long start_time; /* edac_device load start time (jiffies) */ + + /* these are for safe removal of mc devices from global list while + * NMI handlers may be traversing list + */ + struct rcu_head rcu; + struct completion removal_complete; + + /* sysfs top name under 'edac' directory + * and instance name: + * cpu/cpu0/... + * cpu/cpu1/... + * cpu/cpu2/... + * ... + */ + char name[EDAC_DEVICE_NAME_LEN + 1]; + + /* Number of instances supported on this control structure + * and the array of those instances + */ + u32 nr_instances; + struct edac_device_instance *instances; + + /* Event counters for the this whole EDAC Device */ + struct edac_device_counter counters; + + /* edac sysfs device control for the 'name' + * device this structure controls + */ + struct kobject kobj; }; +/* To get from the instance's wq to the beginning of the ctl structure */ +#define to_edac_mem_ctl_work(w) \ + container_of(w, struct mem_ctl_info, work) + +#define to_edac_device_ctl_work(w) \ + container_of(w,struct edac_device_ctl_info,work) + +/* + * The alloc() and free() functions for the 'edac_device' control info + * structure. A MC driver will allocate one of these for each edac_device + * it is going to control/register with the EDAC CORE. + */ +extern struct edac_device_ctl_info *edac_device_alloc_ctl_info( + unsigned sizeof_private, + char *edac_device_name, unsigned nr_instances, + char *edac_block_name, unsigned nr_blocks, + unsigned offset_value, + struct edac_dev_sysfs_block_attribute *block_attributes, + unsigned nr_attribs, + int device_index); + +/* The offset value can be: + * -1 indicating no offset value + * 0 for zero-based block numbers + * 1 for 1-based block number + * other for other-based block number + */ +#define BLOCK_OFFSET_VALUE_OFF ((unsigned) -1) + +extern void edac_device_free_ctl_info(struct edac_device_ctl_info *ctl_info); + #ifdef CONFIG_PCI +struct edac_pci_counter { + atomic_t pe_count; + atomic_t npe_count; +}; + +/* + * Abstract edac_pci control info structure + * + */ +struct edac_pci_ctl_info { + /* for global list of edac_pci_ctl_info structs */ + struct list_head link; + + int pci_idx; + + struct sysdev_class *edac_class; /* pointer to class */ + + /* the internal state of this controller instance */ + int op_state; + /* work struct for this instance */ + struct delayed_work work; + + /* pointer to edac polling checking routine: + * If NOT NULL: points to polling check routine + * If NULL: Then assumes INTERRUPT operation, where + * MC driver will receive events + */ + void (*edac_check) (struct edac_pci_ctl_info * edac_dev); + + struct device *dev; /* pointer to device structure */ + + const char *mod_name; /* module name */ + const char *ctl_name; /* edac controller name */ + const char *dev_name; /* pci/platform/etc... name */ + + void *pvt_info; /* pointer to 'private driver' info */ + + unsigned long start_time; /* edac_pci load start time (jiffies) */ + + /* these are for safe removal of devices from global list while + * NMI handlers may be traversing list + */ + struct rcu_head rcu; + struct completion complete; + + /* sysfs top name under 'edac' directory + * and instance name: + * cpu/cpu0/... + * cpu/cpu1/... + * cpu/cpu2/... + * ... + */ + char name[EDAC_DEVICE_NAME_LEN + 1]; + + /* Event counters for the this whole EDAC Device */ + struct edac_pci_counter counters; + + /* edac sysfs device control for the 'name' + * device this structure controls + */ + struct kobject kobj; + struct completion kobj_complete; +}; + +#define to_edac_pci_ctl_work(w) \ + container_of(w, struct edac_pci_ctl_info,work) + /* write all or some bits in a byte-register*/ static inline void pci_write_bits8(struct pci_dev *pdev, int offset, u8 value, - u8 mask) + u8 mask) { if (mask != 0xff) { u8 buf; @@ -392,7 +741,7 @@ static inline void pci_write_bits8(struct pci_dev *pdev, int offset, u8 value, /* write all or some bits in a word-register*/ static inline void pci_write_bits16(struct pci_dev *pdev, int offset, - u16 value, u16 mask) + u16 value, u16 mask) { if (mask != 0xffff) { u16 buf; @@ -408,7 +757,7 @@ static inline void pci_write_bits16(struct pci_dev *pdev, int offset, /* write all or some bits in a dword-register*/ static inline void pci_write_bits32(struct pci_dev *pdev, int offset, - u32 value, u32 mask) + u32 value, u32 mask) { if (mask != 0xffff) { u32 buf; @@ -422,20 +771,16 @@ static inline void pci_write_bits32(struct pci_dev *pdev, int offset, pci_write_config_dword(pdev, offset, value); } -#endif /* CONFIG_PCI */ +#endif /* CONFIG_PCI */ -#ifdef CONFIG_EDAC_DEBUG -void edac_mc_dump_channel(struct channel_info *chan); -void edac_mc_dump_mci(struct mem_ctl_info *mci); -void edac_mc_dump_csrow(struct csrow_info *csrow); -#endif /* CONFIG_EDAC_DEBUG */ - -extern int edac_mc_add_mc(struct mem_ctl_info *mci,int mc_idx); -extern struct mem_ctl_info * edac_mc_del_mc(struct device *dev); +extern struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows, + unsigned nr_chans, int edac_index); +extern int edac_mc_add_mc(struct mem_ctl_info *mci); +extern void edac_mc_free(struct mem_ctl_info *mci); +extern struct mem_ctl_info *edac_mc_find(int idx); +extern struct mem_ctl_info *edac_mc_del_mc(struct device *dev); extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci, - unsigned long page); -extern void edac_mc_scrub_block(unsigned long page, unsigned long offset, - u32 size); + unsigned long page); /* * The no info errors are used when error overflows are reported. @@ -448,34 +793,59 @@ extern void edac_mc_scrub_block(unsigned long page, unsigned long offset, * statement clutter and extra function arguments. */ extern void edac_mc_handle_ce(struct mem_ctl_info *mci, - unsigned long page_frame_number, unsigned long offset_in_page, - unsigned long syndrome, int row, int channel, - const char *msg); + unsigned long page_frame_number, + unsigned long offset_in_page, + unsigned long syndrome, int row, int channel, + const char *msg); extern void edac_mc_handle_ce_no_info(struct mem_ctl_info *mci, - const char *msg); + const char *msg); extern void edac_mc_handle_ue(struct mem_ctl_info *mci, - unsigned long page_frame_number, unsigned long offset_in_page, - int row, const char *msg); + unsigned long page_frame_number, + unsigned long offset_in_page, int row, + const char *msg); extern void edac_mc_handle_ue_no_info(struct mem_ctl_info *mci, - const char *msg); -extern void edac_mc_handle_fbd_ue(struct mem_ctl_info *mci, - unsigned int csrow, - unsigned int channel0, - unsigned int channel1, - char *msg); -extern void edac_mc_handle_fbd_ce(struct mem_ctl_info *mci, - unsigned int csrow, - unsigned int channel, - char *msg); + const char *msg); +extern void edac_mc_handle_fbd_ue(struct mem_ctl_info *mci, unsigned int csrow, + unsigned int channel0, unsigned int channel1, + char *msg); +extern void edac_mc_handle_fbd_ce(struct mem_ctl_info *mci, unsigned int csrow, + unsigned int channel, char *msg); /* - * This kmalloc's and initializes all the structures. - * Can't be used if all structures don't have the same lifetime. + * edac_device APIs */ -extern struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows, - unsigned nr_chans); +extern int edac_device_add_device(struct edac_device_ctl_info *edac_dev); +extern struct edac_device_ctl_info *edac_device_del_device(struct device *dev); +extern void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, + int inst_nr, int block_nr, const char *msg); +extern void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, + int inst_nr, int block_nr, const char *msg); -/* Free an mc previously allocated by edac_mc_alloc() */ -extern void edac_mc_free(struct mem_ctl_info *mci); +/* + * edac_pci APIs + */ +extern struct edac_pci_ctl_info *edac_pci_alloc_ctl_info(unsigned int sz_pvt, + const char *edac_pci_name); + +extern void edac_pci_free_ctl_info(struct edac_pci_ctl_info *pci); + +extern void edac_pci_reset_delay_period(struct edac_pci_ctl_info *pci, + unsigned long value); + +extern int edac_pci_add_device(struct edac_pci_ctl_info *pci, int edac_idx); +extern struct edac_pci_ctl_info *edac_pci_del_device(struct device *dev); + +extern struct edac_pci_ctl_info *edac_pci_create_generic_ctl( + struct device *dev, + const char *mod_name); + +extern void edac_pci_release_generic_ctl(struct edac_pci_ctl_info *pci); +extern int edac_pci_create_sysfs(struct edac_pci_ctl_info *pci); +extern void edac_pci_remove_sysfs(struct edac_pci_ctl_info *pci); + +/* + * edac misc APIs + */ +extern char *edac_op_state_to_string(int op_state); -#endif /* _EDAC_MC_H_ */ +#endif /* _EDAC_CORE_H_ */ diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c new file mode 100644 index 000000000000..f3690a697cf9 --- /dev/null +++ b/drivers/edac/edac_device.c @@ -0,0 +1,746 @@ + +/* + * edac_device.c + * (C) 2007 www.douglaskthompson.com + * + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Written by Doug Thompson <norsk5@xmission.com> + * + * edac_device API implementation + * 19 Jan 2007 + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/smp.h> +#include <linux/init.h> +#include <linux/sysctl.h> +#include <linux/highmem.h> +#include <linux/timer.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/spinlock.h> +#include <linux/list.h> +#include <linux/sysdev.h> +#include <linux/ctype.h> +#include <linux/workqueue.h> +#include <asm/uaccess.h> +#include <asm/page.h> + +#include "edac_core.h" +#include "edac_module.h" + +/* lock for the list: 'edac_device_list', manipulation of this list + * is protected by the 'device_ctls_mutex' lock + */ +static DEFINE_MUTEX(device_ctls_mutex); +static struct list_head edac_device_list = LIST_HEAD_INIT(edac_device_list); + +#ifdef CONFIG_EDAC_DEBUG +static void edac_device_dump_device(struct edac_device_ctl_info *edac_dev) +{ + debugf3("\tedac_dev = %p dev_idx=%d \n", edac_dev, edac_dev->dev_idx); + debugf4("\tedac_dev->edac_check = %p\n", edac_dev->edac_check); + debugf3("\tdev = %p\n", edac_dev->dev); + debugf3("\tmod_name:ctl_name = %s:%s\n", + edac_dev->mod_name, edac_dev->ctl_name); + debugf3("\tpvt_info = %p\n\n", edac_dev->pvt_info); +} +#endif /* CONFIG_EDAC_DEBUG */ + + +/* + * edac_device_alloc_ctl_info() + * Allocate a new edac device control info structure + * + * The control structure is allocated in complete chunk + * from the OS. It is in turn sub allocated to the + * various objects that compose the struture + * + * The structure has a 'nr_instance' array within itself. + * Each instance represents a major component + * Example: L1 cache and L2 cache are 2 instance components + * + * Within each instance is an array of 'nr_blocks' blockoffsets + */ +struct edac_device_ctl_info *edac_device_alloc_ctl_info( + unsigned sz_private, + char *edac_device_name, unsigned nr_instances, + char *edac_block_name, unsigned nr_blocks, + unsigned offset_value, /* zero, 1, or other based offset */ + struct edac_dev_sysfs_block_attribute *attrib_spec, unsigned nr_attrib, + int device_index) +{ + struct edac_device_ctl_info *dev_ctl; + struct edac_device_instance *dev_inst, *inst; + struct edac_device_block *dev_blk, *blk_p, *blk; + struct edac_dev_sysfs_block_attribute *dev_attrib, *attrib_p, *attrib; + unsigned total_size; + unsigned count; + unsigned instance, block, attr; + void *pvt; + int err; + + debugf4("%s() instances=%d blocks=%d\n", + __func__, nr_instances, nr_blocks); + + /* Calculate the size of memory we need to allocate AND + * determine the offsets of the various item arrays + * (instance,block,attrib) from the start of an allocated structure. + * We want the alignment of each item (instance,block,attrib) + * to be at least as stringent as what the compiler would + * provide if we could simply hardcode everything into a single struct. + */ + dev_ctl = (struct edac_device_ctl_info *)NULL; + + /* Calc the 'end' offset past end of ONE ctl_info structure + * which will become the start of the 'instance' array + */ + dev_inst = edac_align_ptr(&dev_ctl[1], sizeof(*dev_inst)); + + /* Calc the 'end' offset past the instance array within the ctl_info + * which will become the start of the block array + */ + dev_blk = edac_align_ptr(&dev_inst[nr_instances], sizeof(*dev_blk)); + + /* Calc the 'end' offset past the dev_blk array + * which will become the start of the attrib array, if any. + */ + count = nr_instances * nr_blocks; + dev_attrib = edac_align_ptr(&dev_blk[count], sizeof(*dev_attrib)); + + /* Check for case of when an attribute array is specified */ + if (nr_attrib > 0) { + /* calc how many nr_attrib we need */ + count *= nr_attrib; + + /* Calc the 'end' offset past the attributes array */ + pvt = edac_align_ptr(&dev_attrib[count], sz_private); + } else { + /* no attribute array specificed */ + pvt = edac_align_ptr(dev_attrib, sz_private); + } + + /* 'pvt' now points to where the private data area is. + * At this point 'pvt' (like dev_inst,dev_blk and dev_attrib) + * is baselined at ZERO + */ + total_size = ((unsigned long)pvt) + sz_private; + + /* Allocate the amount of memory for the set of control structures */ + dev_ctl = kzalloc(total_size, GFP_KERNEL); + if (dev_ctl == NULL) + return NULL; + + /* Adjust pointers so they point within the actual memory we + * just allocated rather than an imaginary chunk of memory + * located at address 0. + * 'dev_ctl' points to REAL memory, while the others are + * ZERO based and thus need to be adjusted to point within + * the allocated memory. + */ + dev_inst = (struct edac_device_instance *) + (((char *)dev_ctl) + ((unsigned long)dev_inst)); + dev_blk = (struct edac_device_block *) + (((char *)dev_ctl) + ((unsigned long)dev_blk)); + dev_attrib = (struct edac_dev_sysfs_block_attribute *) + (((char *)dev_ctl) + ((unsigned long)dev_attrib)); + pvt = sz_private ? (((char *)dev_ctl) + ((unsigned long)pvt)) : NULL; + + /* Begin storing the information into the control info structure */ + dev_ctl->dev_idx = device_index; + dev_ctl->nr_instances = nr_instances; + dev_ctl->instances = dev_inst; + dev_ctl->pvt_info = pvt; + + /* Name of this edac device */ + snprintf(dev_ctl->name,sizeof(dev_ctl->name),"%s",edac_device_name); + + debugf4("%s() edac_dev=%p next after end=%p\n", + __func__, dev_ctl, pvt + sz_private ); + + /* Initialize every Instance */ + for (instance = 0; instance < nr_instances; instance++) { + inst = &dev_inst[instance]; + inst->ctl = dev_ctl; + inst->nr_blocks = nr_blocks; + blk_p = &dev_blk[instance * nr_blocks]; + inst->blocks = blk_p; + + /* name of this instance */ + snprintf(inst->name, sizeof(inst->name), + "%s%u", edac_device_name, instance); + + /* Initialize every block in each instance */ + for (block = 0; block < nr_blocks; block++) { + blk = &blk_p[block]; + blk->instance = inst; + snprintf(blk->name, sizeof(blk->name), + "%s%d", edac_block_name, block+offset_value); + + debugf4("%s() instance=%d inst_p=%p block=#%d " + "block_p=%p name='%s'\n", + __func__, instance, inst, block, + blk, blk->name); + + /* if there are NO attributes OR no attribute pointer + * then continue on to next block iteration + */ + if ((nr_attrib == 0) || (attrib_spec == NULL)) + continue; + + /* setup the attribute array for this block */ + blk->nr_attribs = nr_attrib; + attrib_p = &dev_attrib[block*nr_instances*nr_attrib]; + blk->block_attributes = attrib_p; + + debugf4("%s() THIS BLOCK_ATTRIB=%p\n", + __func__, blk->block_attributes); + + /* Initialize every user specified attribute in this + * block with the data the caller passed in + * Each block gets its own copy of pointers, + * and its unique 'value' + */ + for (attr = 0; attr < nr_attrib; attr++) { + attrib = &attrib_p[attr]; + + /* populate the unique per attrib + * with the code pointers and info + */ + attrib->attr = attrib_spec[attr].attr; + attrib->show = attrib_spec[attr].show; + attrib->store = attrib_spec[attr].store; + + attrib->block = blk; /* up link */ + + debugf4("%s() alloc-attrib=%p attrib_name='%s' " + "attrib-spec=%p spec-name=%s\n", + __func__, attrib, attrib->attr.name, + &attrib_spec[attr], + attrib_spec[attr].attr.name + ); + } + } + } + + /* Mark this instance as merely ALLOCATED */ + dev_ctl->op_state = OP_ALLOC; + + /* + * Initialize the 'root' kobj for the edac_device controller + */ + err = edac_device_register_sysfs_main_kobj(dev_ctl); + if (err) { + kfree(dev_ctl); + return NULL; + } + + /* at this point, the root kobj is valid, and in order to + * 'free' the object, then the function: + * edac_device_unregister_sysfs_main_kobj() must be called + * which will perform kobj unregistration and the actual free + * will occur during the kobject callback operation + */ + + return dev_ctl; +} +EXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info); + +/* + * edac_device_free_ctl_info() + * frees the memory allocated by the edac_device_alloc_ctl_info() + * function + */ +void edac_device_free_ctl_info(struct edac_device_ctl_info *ctl_info) +{ + edac_device_unregister_sysfs_main_kobj(ctl_info); +} +EXPORT_SYMBOL_GPL(edac_device_free_ctl_info); + +/* + * find_edac_device_by_dev + * scans the edac_device list for a specific 'struct device *' + * + * lock to be held prior to call: device_ctls_mutex + * + * Return: + * pointer to control structure managing 'dev' + * NULL if not found on list + */ +static struct edac_device_ctl_info *find_edac_device_by_dev(struct device *dev) +{ + struct edac_device_ctl_info *edac_dev; + struct list_head *item; + + debugf0("%s()\n", __func__); + + list_for_each(item, &edac_device_list) { + edac_dev = list_entry(item, struct edac_device_ctl_info, link); + + if (edac_dev->dev == dev) + return edac_dev; + } + + return NULL; +} + +/* + * add_edac_dev_to_global_list + * Before calling this function, caller must + * assign a unique value to edac_dev->dev_idx. + * + * lock to be held prior to call: device_ctls_mutex + * + * Return: + * 0 on success + * 1 on failure. + */ +static int add_edac_dev_to_global_list(struct edac_device_ctl_info *edac_dev) +{ + struct list_head *item, *insert_before; + struct edac_device_ctl_info *rover; + + insert_before = &edac_device_list; + + /* Determine if already on the list */ + rover = find_edac_device_by_dev(edac_dev->dev); + if (unlikely(rover != NULL)) + goto fail0; + + /* Insert in ascending order by 'dev_idx', so find position */ + list_for_each(item, &edac_device_list) { + rover = list_entry(item, struct edac_device_ctl_info, link); + + if (rover->dev_idx >= edac_dev->dev_idx) { + if (unlikely(rover->dev_idx == edac_dev->dev_idx)) + goto fail1; + + insert_before = item; + break; + } + } + + list_add_tail_rcu(&edac_dev->link, insert_before); + return 0; + +fail0: + edac_printk(KERN_WARNING, EDAC_MC, + "%s (%s) %s %s already assigned %d\n", + rover->dev->bus_id, dev_name(rover), + rover->mod_name, rover->ctl_name, rover->dev_idx); + return 1; + +fail1: + edac_printk(KERN_WARNING, EDAC_MC, + "bug in low-level driver: attempt to assign\n" + " duplicate dev_idx %d in %s()\n", rover->dev_idx, + __func__); + return 1; +} + +/* + * complete_edac_device_list_del + * + * callback function when reference count is zero + */ +static void complete_edac_device_list_del(struct rcu_head *head) +{ + struct edac_device_ctl_info *edac_dev; + + edac_dev = container_of(head, struct edac_device_ctl_info, rcu); + INIT_LIST_HEAD(&edac_dev->link); + complete(&edac_dev->removal_complete); +} + +/* + * del_edac_device_from_global_list + * + * remove the RCU, setup for a callback call, + * then wait for the callback to occur + */ +static void del_edac_device_from_global_list(struct edac_device_ctl_info + *edac_device) +{ + list_del_rcu(&edac_device->link); + + init_completion(&edac_device->removal_complete); + call_rcu(&edac_device->rcu, complete_edac_device_list_del); + wait_for_completion(&edac_device->removal_complete); +} + +/** + * edac_device_find + * Search for a edac_device_ctl_info structure whose index is 'idx'. + * + * If found, return a pointer to the structure. + * Else return NULL. + * + * Caller must hold device_ctls_mutex. + */ +struct edac_device_ctl_info *edac_device_find(int idx) +{ + struct list_head *item; + struct edac_device_ctl_info *edac_dev; + + /* Iterate over list, looking for exact match of ID */ + list_for_each(item, &edac_device_list) { + edac_dev = list_entry(item, struct edac_device_ctl_info, link); + + if (edac_dev->dev_idx >= idx) { + if (edac_dev->dev_idx == idx) + return edac_dev; + + /* not on list, so terminate early */ + break; + } + } + + return NULL; +} +EXPORT_SYMBOL_GPL(edac_device_find); + +/* + * edac_device_workq_function + * performs the operation scheduled by a workq request + * + * this workq is embedded within an edac_device_ctl_info + * structure, that needs to be polled for possible error events. + * + * This operation is to acquire the list mutex lock + * (thus preventing insertation or deletion) + * and then call the device's poll function IFF this device is + * running polled and there is a poll function defined. + */ +static void edac_device_workq_function(struct work_struct *work_req) +{ + struct delayed_work *d_work = (struct delayed_work *)work_req; + struct edac_device_ctl_info *edac_dev = to_edac_device_ctl_work(d_work); + + mutex_lock(&device_ctls_mutex); + + /* Only poll controllers that are running polled and have a check */ + if ((edac_dev->op_state == OP_RUNNING_POLL) && + (edac_dev->edac_check != NULL)) { + edac_dev->edac_check(edac_dev); + } + + mutex_unlock(&device_ctls_mutex); + + /* Reschedule the workq for the next time period to start again + * if the number of msec is for 1 sec, then adjust to the next + * whole one second to save timers fireing all over the period + * between integral seconds + */ + if (edac_dev->poll_msec == 1000) + queue_delayed_work(edac_workqueue, &edac_dev->work, + round_jiffies(edac_dev->delay)); + else + queue_delayed_work(edac_workqueue, &edac_dev->work, + edac_dev->delay); +} + +/* + * edac_device_workq_setup + * initialize a workq item for this edac_device instance + * passing in the new delay period in msec + */ +void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev, + unsigned msec) +{ + debugf0("%s()\n", __func__); + + /* take the arg 'msec' and set it into the control structure + * to used in the time period calculation + * then calc the number of jiffies that represents + */ + edac_dev->poll_msec = msec; + edac_dev->delay = msecs_to_jiffies(msec); + + INIT_DELAYED_WORK(&edac_dev->work, edac_device_workq_function); + + /* optimize here for the 1 second case, which will be normal value, to + * fire ON the 1 second time event. This helps reduce all sorts of + * timers firing on sub-second basis, while they are happy + * to fire together on the 1 second exactly + */ + if (edac_dev->poll_msec == 1000) + queue_delayed_work(edac_workqueue, &edac_dev->work, + round_jiffies(edac_dev->delay)); + else + queue_delayed_work(edac_workqueue, &edac_dev->work, + edac_dev->delay); +} + +/* + * edac_device_workq_teardown + * stop the workq processing on this edac_dev + */ +void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev) +{ + int status; + + status = cancel_delayed_work(&edac_dev->work); + if (status == 0) { + /* workq instance might be running, wait for it */ + flush_workqueue(edac_workqueue); + } +} + +/* + * edac_device_reset_delay_period + * + * need to stop any outstanding workq queued up at this time + * because we will be resetting the sleep time. + * Then restart the workq on the new delay + */ +void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev, + unsigned long value) +{ + /* cancel the current workq request, without the mutex lock */ + edac_device_workq_teardown(edac_dev); + + /* acquire the mutex before doing the workq setup */ + mutex_lock(&device_ctls_mutex); + + /* restart the workq request, with new delay value */ + edac_device_workq_setup(edac_dev, value); + + mutex_unlock(&device_ctls_mutex); +} + +/** + * edac_device_add_device: Insert the 'edac_dev' structure into the + * edac_device global list and create sysfs entries associated with + * edac_device structure. + * @edac_device: pointer to the edac_device structure to be added to the list + * 'edac_device' structure. + * + * Return: + * 0 Success + * !0 Failure + */ +int edac_device_add_device(struct edac_device_ctl_info *edac_dev) +{ + debugf0("%s()\n", __func__); + +#ifdef CONFIG_EDAC_DEBUG + if (edac_debug_level >= 3) + edac_device_dump_device(edac_dev); +#endif + mutex_lock(&device_ctls_mutex); + + if (add_edac_dev_to_global_list(edac_dev)) + goto fail0; + + /* set load time so that error rate can be tracked */ + edac_dev->start_time = jiffies; + + /* create this instance's sysfs entries */ + if (edac_device_create_sysfs(edac_dev)) { + edac_device_printk(edac_dev, KERN_WARNING, + "failed to create sysfs device\n"); + goto fail1; + } + + /* If there IS a check routine, then we are running POLLED */ + if (edac_dev->edac_check != NULL) { + /* This instance is NOW RUNNING */ + edac_dev->op_state = OP_RUNNING_POLL; + + /* + * enable workq processing on this instance, + * default = 1000 msec + */ + edac_device_workq_setup(edac_dev, 1000); + } else { + edac_dev->op_state = OP_RUNNING_INTERRUPT; + } + + /* Report action taken */ + edac_device_printk(edac_dev, KERN_INFO, + "Giving out device to module '%s' controller " + "'%s': DEV '%s' (%s)\n", + edac_dev->mod_name, + edac_dev->ctl_name, + dev_name(edac_dev), + edac_op_state_to_string(edac_dev->op_state)); + + mutex_unlock(&device_ctls_mutex); + return 0; + +fail1: + /* Some error, so remove the entry from the lsit */ + del_edac_device_from_global_list(edac_dev); + +fail0: + mutex_unlock(&device_ctls_mutex); + return 1; +} +EXPORT_SYMBOL_GPL(edac_device_add_device); + +/** + * edac_device_del_device: + * Remove sysfs entries for specified edac_device structure and + * then remove edac_device structure from global list + * + * @pdev: + * Pointer to 'struct device' representing edac_device + * structure to remove. + * + * Return: + * Pointer to removed edac_device structure, + * OR NULL if device not found. + */ +struct edac_device_ctl_info *edac_device_del_device(struct device *dev) +{ + struct edac_device_ctl_info *edac_dev; + + debugf0("%s()\n", __func__); + + mutex_lock(&device_ctls_mutex); + + /* Find the structure on the list, if not there, then leave */ + edac_dev = find_edac_device_by_dev(dev); + if (edac_dev == NULL) { + mutex_unlock(&device_ctls_mutex); + return NULL; + } + + /* mark this instance as OFFLINE */ + edac_dev->op_state = OP_OFFLINE; + + /* clear workq processing on this instance */ + edac_device_workq_teardown(edac_dev); + + /* deregister from global list */ + del_edac_device_from_global_list(edac_dev); + + mutex_unlock(&device_ctls_mutex); + + /* Tear down the sysfs entries for this instance */ + edac_device_remove_sysfs(edac_dev); + + edac_printk(KERN_INFO, EDAC_MC, + "Removed device %d for %s %s: DEV %s\n", + edac_dev->dev_idx, + edac_dev->mod_name, edac_dev->ctl_name, dev_name(edac_dev)); + + return edac_dev; +} +EXPORT_SYMBOL_GPL(edac_device_del_device); + +static inline int edac_device_get_log_ce(struct edac_device_ctl_info *edac_dev) +{ + return edac_dev->log_ce; +} + +static inline int edac_device_get_log_ue(struct edac_device_ctl_info *edac_dev) +{ + return edac_dev->log_ue; +} + +static inline int edac_device_get_panic_on_ue(struct edac_device_ctl_info + *edac_dev) +{ + return edac_dev->panic_on_ue; +} + +/* + * edac_device_handle_ce + * perform a common output and handling of an 'edac_dev' CE event + */ +void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, + int inst_nr, int block_nr, const char *msg) +{ + struct edac_device_instance *instance; + struct edac_device_block *block = NULL; + + if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { + edac_device_printk(edac_dev, KERN_ERR, + "INTERNAL ERROR: 'instance' out of range " + "(%d >= %d)\n", inst_nr, + edac_dev->nr_instances); + return; + } + + instance = edac_dev->instances + inst_nr; + + if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { + edac_device_printk(edac_dev, KERN_ERR, + "INTERNAL ERROR: instance %d 'block' " + "out of range (%d >= %d)\n", + inst_nr, block_nr, + instance->nr_blocks); + return; + } + + if (instance->nr_blocks > 0) { + block = instance->blocks + block_nr; + block->counters.ce_count++; + } + + /* Propogate the count up the 'totals' tree */ + instance->counters.ce_count++; + edac_dev->counters.ce_count++; + + if (edac_device_get_log_ce(edac_dev)) + edac_device_printk(edac_dev, KERN_WARNING, + "CE: %s instance: %s block: %s '%s'\n", + edac_dev->ctl_name, instance->name, + block ? block->name : "N/A", msg); +} +EXPORT_SYMBOL_GPL(edac_device_handle_ce); + +/* + * edac_device_handle_ue + * perform a common output and handling of an 'edac_dev' UE event + */ +void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, + int inst_nr, int block_nr, const char *msg) +{ + struct edac_device_instance *instance; + struct edac_device_block *block = NULL; + + if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { + edac_device_printk(edac_dev, KERN_ERR, + "INTERNAL ERROR: 'instance' out of range " + "(%d >= %d)\n", inst_nr, + edac_dev->nr_instances); + return; + } + + instance = edac_dev->instances + inst_nr; + + if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { + edac_device_printk(edac_dev, KERN_ERR, + "INTERNAL ERROR: instance %d 'block' " + "out of range (%d >= %d)\n", + inst_nr, block_nr, + instance->nr_blocks); + return; + } + + if (instance->nr_blocks > 0) { + block = instance->blocks + block_nr; + block->counters.ue_count++; + } + + /* Propogate the count up the 'totals' tree */ + instance->counters.ue_count++; + edac_dev->counters.ue_count++; + + if (edac_device_get_log_ue(edac_dev)) + edac_device_printk(edac_dev, KERN_EMERG, + "UE: %s instance: %s block: %s '%s'\n", + edac_dev->ctl_name, instance->name, + block ? block->name : "N/A", msg); + + if (edac_device_get_panic_on_ue(edac_dev)) + panic("EDAC %s: UE instance: %s block %s '%s'\n", + edac_dev->ctl_name, instance->name, + block ? block->name : "N/A", msg); +} +EXPORT_SYMBOL_GPL(edac_device_handle_ue); diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c new file mode 100644 index 000000000000..70b837f23c43 --- /dev/null +++ b/drivers/edac/edac_device_sysfs.c @@ -0,0 +1,896 @@ +/* + * file for managing the edac_device class of devices for EDAC + * + * (C) 2007 SoftwareBitMaker (http://www.softwarebitmaker.com) + * + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Written Doug Thompson <norsk5@xmission.com> + * + */ + +#include <linux/ctype.h> +#include <linux/module.h> + +#include "edac_core.h" +#include "edac_module.h" + +#define EDAC_DEVICE_SYMLINK "device" + +#define to_edacdev(k) container_of(k, struct edac_device_ctl_info, kobj) +#define to_edacdev_attr(a) container_of(a, struct edacdev_attribute, attr) + + +/* + * Set of edac_device_ctl_info attribute store/show functions + */ + +/* 'log_ue' */ +static ssize_t edac_device_ctl_log_ue_show(struct edac_device_ctl_info + *ctl_info, char *data) +{ + return sprintf(data, "%u\n", ctl_info->log_ue); +} + +static ssize_t edac_device_ctl_log_ue_store(struct edac_device_ctl_info + *ctl_info, const char *data, + size_t count) +{ + /* if parameter is zero, turn off flag, if non-zero turn on flag */ + ctl_info->log_ue = (simple_strtoul(data, NULL, 0) != 0); + + return count; +} + +/* 'log_ce' */ +static ssize_t edac_device_ctl_log_ce_show(struct edac_device_ctl_info + *ctl_info, char *data) +{ + return sprintf(data, "%u\n", ctl_info->log_ce); +} + +static ssize_t edac_device_ctl_log_ce_store(struct edac_device_ctl_info + *ctl_info, const char *data, + size_t count) +{ + /* if parameter is zero, turn off flag, if non-zero turn on flag */ + ctl_info->log_ce = (simple_strtoul(data, NULL, 0) != 0); + + return count; +} + +/* 'panic_on_ue' */ +static ssize_t edac_device_ctl_panic_on_ue_show(struct edac_device_ctl_info + *ctl_info, char *data) +{ + return sprintf(data, "%u\n", ctl_info->panic_on_ue); +} + +static ssize_t edac_device_ctl_panic_on_ue_store(struct edac_device_ctl_info + *ctl_info, const char *data, + size_t count) +{ + /* if parameter is zero, turn off flag, if non-zero turn on flag */ + ctl_info->panic_on_ue = (simple_strtoul(data, NULL, 0) != 0); + + return count; +} + +/* 'poll_msec' show and store functions*/ +static ssize_t edac_device_ctl_poll_msec_show(struct edac_device_ctl_info + *ctl_info, char *data) +{ + return sprintf(data, "%u\n", ctl_info->poll_msec); +} + +static ssize_t edac_device_ctl_poll_msec_store(struct edac_device_ctl_info + *ctl_info, const char *data, + size_t count) +{ + unsigned long value; + + /* get the value and enforce that it is non-zero, must be at least + * one millisecond for the delay period, between scans + * Then cancel last outstanding delay for the work request + * and set a new one. + */ + value = simple_strtoul(data, NULL, 0); + edac_device_reset_delay_period(ctl_info, value); + + return count; +} + +/* edac_device_ctl_info specific attribute structure */ +struct ctl_info_attribute { + struct attribute attr; + ssize_t(*show) (struct edac_device_ctl_info *, char *); + ssize_t(*store) (struct edac_device_ctl_info *, const char *, size_t); +}; + +#define to_ctl_info(k) container_of(k, struct edac_device_ctl_info, kobj) +#define to_ctl_info_attr(a) container_of(a,struct ctl_info_attribute,attr) + +/* Function to 'show' fields from the edac_dev 'ctl_info' structure */ +static ssize_t edac_dev_ctl_info_show(struct kobject *kobj, + struct attribute *attr, char *buffer) +{ + struct edac_device_ctl_info *edac_dev = to_ctl_info(kobj); + struct ctl_info_attribute *ctl_info_attr = to_ctl_info_attr(attr); + + if (ctl_info_attr->show) + return ctl_info_attr->show(edac_dev, buffer); + return -EIO; +} + +/* Function to 'store' fields into the edac_dev 'ctl_info' structure */ +static ssize_t edac_dev_ctl_info_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, size_t count) +{ + struct edac_device_ctl_info *edac_dev = to_ctl_info(kobj); + struct ctl_info_attribute *ctl_info_attr = to_ctl_info_attr(attr); + + if (ctl_info_attr->store) + return ctl_info_attr->store(edac_dev, buffer, count); + return -EIO; +} + +/* edac_dev file operations for an 'ctl_info' */ +static struct sysfs_ops device_ctl_info_ops = { + .show = edac_dev_ctl_info_show, + .store = edac_dev_ctl_info_store +}; + +#define CTL_INFO_ATTR(_name,_mode,_show,_store) \ +static struct ctl_info_attribute attr_ctl_info_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .show = _show, \ + .store = _store, \ +}; + +/* Declare the various ctl_info attributes here and their respective ops */ +CTL_INFO_ATTR(log_ue, S_IRUGO | S_IWUSR, + edac_device_ctl_log_ue_show, edac_device_ctl_log_ue_store); +CTL_INFO_ATTR(log_ce, S_IRUGO | S_IWUSR, + edac_device_ctl_log_ce_show, edac_device_ctl_log_ce_store); +CTL_INFO_ATTR(panic_on_ue, S_IRUGO | S_IWUSR, + edac_device_ctl_panic_on_ue_show, + edac_device_ctl_panic_on_ue_store); +CTL_INFO_ATTR(poll_msec, S_IRUGO | S_IWUSR, + edac_device_ctl_poll_msec_show, edac_device_ctl_poll_msec_store); + +/* Base Attributes of the EDAC_DEVICE ECC object */ +static struct ctl_info_attribute *device_ctrl_attr[] = { + &attr_ctl_info_panic_on_ue, + &attr_ctl_info_log_ue, + &attr_ctl_info_log_ce, + &attr_ctl_info_poll_msec, + NULL, +}; + +/* + * edac_device_ctrl_master_release + * + * called when the reference count for the 'main' kobj + * for a edac_device control struct reaches zero + * + * Reference count model: + * One 'main' kobject for each control structure allocated. + * That main kobj is initially set to one AND + * the reference count for the EDAC 'core' module is + * bumped by one, thus added 'keep in memory' dependency. + * + * Each new internal kobj (in instances and blocks) then + * bumps the 'main' kobject. + * + * When they are released their release functions decrement + * the 'main' kobj. + * + * When the main kobj reaches zero (0) then THIS function + * is called which then decrements the EDAC 'core' module. + * When the module reference count reaches zero then the + * module no longer has dependency on keeping the release + * function code in memory and module can be unloaded. + * + * This will support several control objects as well, each + * with its own 'main' kobj. + */ +static void edac_device_ctrl_master_release(struct kobject *kobj) +{ + struct edac_device_ctl_info *edac_dev = to_edacdev(kobj); + + debugf4("%s() control index=%d\n", __func__, edac_dev->dev_idx); + + /* decrement the EDAC CORE module ref count */ + module_put(edac_dev->owner); + + /* free the control struct containing the 'main' kobj + * passed in to this routine + */ + kfree(edac_dev); +} + +/* ktype for the main (master) kobject */ +static struct kobj_type ktype_device_ctrl = { + .release = edac_device_ctrl_master_release, + .sysfs_ops = &device_ctl_info_ops, + .default_attrs = (struct attribute **)device_ctrl_attr, +}; + +/* + * edac_device_register_sysfs_main_kobj + * + * perform the high level setup for the new edac_device instance + * + * Return: 0 SUCCESS + * !0 FAILURE + */ +int edac_device_register_sysfs_main_kobj(struct edac_device_ctl_info *edac_dev) +{ + struct sysdev_class *edac_class; + int err; + + debugf1("%s()\n", __func__); + + /* get the /sys/devices/system/edac reference */ + edac_class = edac_get_edac_class(); + if (edac_class == NULL) { + debugf1("%s() no edac_class error\n", __func__); + err = -ENODEV; + goto err_out; + } + + /* Point to the 'edac_class' this instance 'reports' to */ + edac_dev->edac_class = edac_class; + + /* Init the devices's kobject */ + memset(&edac_dev->kobj, 0, sizeof(struct kobject)); + edac_dev->kobj.ktype = &ktype_device_ctrl; + + /* set this new device under the edac_class kobject */ + edac_dev->kobj.parent = &edac_class->kset.kobj; + + /* generate sysfs "..../edac/<name>" */ + debugf4("%s() set name of kobject to: %s\n", __func__, edac_dev->name); + err = kobject_set_name(&edac_dev->kobj, "%s", edac_dev->name); + if (err) + goto err_out; + + /* Record which module 'owns' this control structure + * and bump the ref count of the module + */ + edac_dev->owner = THIS_MODULE; + + if (!try_module_get(edac_dev->owner)) { + err = -ENODEV; + goto err_out; + } + + /* register */ + err = kobject_register(&edac_dev->kobj); + if (err) { + debugf1("%s()Failed to register '.../edac/%s'\n", + __func__, edac_dev->name); + goto err_kobj_reg; + } + + /* At this point, to 'free' the control struct, + * edac_device_unregister_sysfs_main_kobj() must be used + */ + + debugf4("%s() Registered '.../edac/%s' kobject\n", + __func__, edac_dev->name); + + return 0; + + /* Error exit stack */ +err_kobj_reg: + module_put(edac_dev->owner); + +err_out: + return err; +} + +/* + * edac_device_unregister_sysfs_main_kobj: + * the '..../edac/<name>' kobject + */ +void edac_device_unregister_sysfs_main_kobj( + struct edac_device_ctl_info *edac_dev) +{ + debugf0("%s()\n", __func__); + debugf4("%s() name of kobject is: %s\n", + __func__, kobject_name(&edac_dev->kobj)); + + /* + * Unregister the edac device's kobject and + * allow for reference count to reach 0 at which point + * the callback will be called to: + * a) module_put() this module + * b) 'kfree' the memory + */ + kobject_unregister(&edac_dev->kobj); +} + +/* edac_dev -> instance information */ + +/* + * Set of low-level instance attribute show functions + */ +static ssize_t instance_ue_count_show(struct edac_device_instance *instance, + char *data) +{ + return sprintf(data, "%u\n", instance->counters.ue_count); +} + +static ssize_t instance_ce_count_show(struct edac_device_instance *instance, + char *data) +{ + return sprintf(data, "%u\n", instance->counters.ce_count); +} + +#define to_instance(k) container_of(k, struct edac_device_instance, kobj) +#define to_instance_attr(a) container_of(a,struct instance_attribute,attr) + +/* DEVICE instance kobject release() function */ +static void edac_device_ctrl_instance_release(struct kobject *kobj) +{ + struct edac_device_instance *instance; + + debugf1("%s()\n", __func__); + + /* map from this kobj to the main control struct + * and then dec the main kobj count + */ + instance = to_instance(kobj); + kobject_put(&instance->ctl->kobj); +} + +/* instance specific attribute structure */ +struct instance_attribute { + struct attribute attr; + ssize_t(*show) (struct edac_device_instance *, char *); + ssize_t(*store) (struct edac_device_instance *, const char *, size_t); +}; + +/* Function to 'show' fields from the edac_dev 'instance' structure */ +static ssize_t edac_dev_instance_show(struct kobject *kobj, + struct attribute *attr, char *buffer) +{ + struct edac_device_instance *instance = to_instance(kobj); + struct instance_attribute *instance_attr = to_instance_attr(attr); + + if (instance_attr->show) + return instance_attr->show(instance, buffer); + return -EIO; +} + +/* Function to 'store' fields into the edac_dev 'instance' structure */ +static ssize_t edac_dev_instance_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, size_t count) +{ + struct edac_device_instance *instance = to_instance(kobj); + struct instance_attribute *instance_attr = to_instance_attr(attr); + + if (instance_attr->store) + return instance_attr->store(instance, buffer, count); + return -EIO; +} + +/* edac_dev file operations for an 'instance' */ +static struct sysfs_ops device_instance_ops = { + .show = edac_dev_instance_show, + .store = edac_dev_instance_store +}; + +#define INSTANCE_ATTR(_name,_mode,_show,_store) \ +static struct instance_attribute attr_instance_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .show = _show, \ + .store = _store, \ +}; + +/* + * Define attributes visible for the edac_device instance object + * Each contains a pointer to a show and an optional set + * function pointer that does the low level output/input + */ +INSTANCE_ATTR(ce_count, S_IRUGO, instance_ce_count_show, NULL); +INSTANCE_ATTR(ue_count, S_IRUGO, instance_ue_count_show, NULL); + +/* list of edac_dev 'instance' attributes */ +static struct instance_attribute *device_instance_attr[] = { + &attr_instance_ce_count, + &attr_instance_ue_count, + NULL, +}; + +/* The 'ktype' for each edac_dev 'instance' */ +static struct kobj_type ktype_instance_ctrl = { + .release = edac_device_ctrl_instance_release, + .sysfs_ops = &device_instance_ops, + .default_attrs = (struct attribute **)device_instance_attr, +}; + +/* edac_dev -> instance -> block information */ + +#define to_block(k) container_of(k, struct edac_device_block, kobj) +#define to_block_attr(a) \ + container_of(a, struct edac_dev_sysfs_block_attribute, attr) + +/* + * Set of low-level block attribute show functions + */ +static ssize_t block_ue_count_show(struct kobject *kobj, + struct attribute *attr, char *data) +{ + struct edac_device_block *block = to_block(kobj); + + return sprintf(data, "%u\n", block->counters.ue_count); +} + +static ssize_t block_ce_count_show(struct kobject *kobj, + struct attribute *attr, char *data) +{ + struct edac_device_block *block = to_block(kobj); + + return sprintf(data, "%u\n", block->counters.ce_count); +} + +/* DEVICE block kobject release() function */ +static void edac_device_ctrl_block_release(struct kobject *kobj) +{ + struct edac_device_block *block; + + debugf1("%s()\n", __func__); + + /* get the container of the kobj */ + block = to_block(kobj); + + /* map from 'block kobj' to 'block->instance->controller->main_kobj' + * now 'release' the block kobject + */ + kobject_put(&block->instance->ctl->kobj); +} + + +/* Function to 'show' fields from the edac_dev 'block' structure */ +static ssize_t edac_dev_block_show(struct kobject *kobj, + struct attribute *attr, char *buffer) +{ + struct edac_dev_sysfs_block_attribute *block_attr = + to_block_attr(attr); + + if (block_attr->show) + return block_attr->show(kobj, attr, buffer); + return -EIO; +} + +/* Function to 'store' fields into the edac_dev 'block' structure */ +static ssize_t edac_dev_block_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, size_t count) +{ + struct edac_dev_sysfs_block_attribute *block_attr; + + block_attr = to_block_attr(attr); + + if (block_attr->store) + return block_attr->store(kobj, attr, buffer, count); + return -EIO; +} + +/* edac_dev file operations for a 'block' */ +static struct sysfs_ops device_block_ops = { + .show = edac_dev_block_show, + .store = edac_dev_block_store +}; + +#define BLOCK_ATTR(_name,_mode,_show,_store) \ +static struct edac_dev_sysfs_block_attribute attr_block_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .show = _show, \ + .store = _store, \ +}; + +BLOCK_ATTR(ce_count, S_IRUGO, block_ce_count_show, NULL); +BLOCK_ATTR(ue_count, S_IRUGO, block_ue_count_show, NULL); + +/* list of edac_dev 'block' attributes */ +static struct edac_dev_sysfs_block_attribute *device_block_attr[] = { + &attr_block_ce_count, + &attr_block_ue_count, + NULL, +}; + +/* The 'ktype' for each edac_dev 'block' */ +static struct kobj_type ktype_block_ctrl = { + .release = edac_device_ctrl_block_release, + .sysfs_ops = &device_block_ops, + .default_attrs = (struct attribute **)device_block_attr, +}; + +/* block ctor/dtor code */ + +/* + * edac_device_create_block + */ +static int edac_device_create_block(struct edac_device_ctl_info *edac_dev, + struct edac_device_instance *instance, + struct edac_device_block *block) +{ + int i; + int err; + struct edac_dev_sysfs_block_attribute *sysfs_attrib; + struct kobject *main_kobj; + + debugf4("%s() Instance '%s' inst_p=%p block '%s' block_p=%p\n", + __func__, instance->name, instance, block->name, block); + debugf4("%s() block kobj=%p block kobj->parent=%p\n", + __func__, &block->kobj, &block->kobj.parent); + + /* init this block's kobject */ + memset(&block->kobj, 0, sizeof(struct kobject)); + block->kobj.parent = &instance->kobj; + block->kobj.ktype = &ktype_block_ctrl; + + err = kobject_set_name(&block->kobj, "%s", block->name); + if (err) + return err; + + /* bump the main kobject's reference count for this controller + * and this instance is dependant on the main + */ + main_kobj = kobject_get(&edac_dev->kobj); + if (!main_kobj) { + err = -ENODEV; + goto err_out; + } + + /* Add this block's kobject */ + err = kobject_register(&block->kobj); + if (err) { + debugf1("%s() Failed to register instance '%s'\n", + __func__, block->name); + kobject_put(main_kobj); + err = -ENODEV; + goto err_out; + } + + /* If there are driver level block attributes, then added them + * to the block kobject + */ + sysfs_attrib = block->block_attributes; + if (sysfs_attrib && block->nr_attribs) { + for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) { + + debugf4("%s() creating block attrib='%s' " + "attrib->%p to kobj=%p\n", + __func__, + sysfs_attrib->attr.name, + sysfs_attrib, &block->kobj); + + /* Create each block_attribute file */ + err = sysfs_create_file(&block->kobj, + &sysfs_attrib->attr); + if (err) + goto err_on_attrib; + } + } + + return 0; + + /* Error unwind stack */ +err_on_attrib: + kobject_unregister(&block->kobj); + +err_out: + return err; +} + +/* + * edac_device_delete_block(edac_dev,block); + */ +static void edac_device_delete_block(struct edac_device_ctl_info *edac_dev, + struct edac_device_block *block) +{ + struct edac_dev_sysfs_block_attribute *sysfs_attrib; + int i; + + /* if this block has 'attributes' then we need to iterate over the list + * and 'remove' the attributes on this block + */ + sysfs_attrib = block->block_attributes; + if (sysfs_attrib && block->nr_attribs) { + for (i = 0; i < block->nr_attribs; i++, sysfs_attrib++) { + + /* remove each block_attrib file */ + sysfs_remove_file(&block->kobj, + (struct attribute *) sysfs_attrib); + } + } + + /* unregister this block's kobject, SEE: + * edac_device_ctrl_block_release() callback operation + */ + kobject_unregister(&block->kobj); +} + +/* instance ctor/dtor code */ + +/* + * edac_device_create_instance + * create just one instance of an edac_device 'instance' + */ +static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev, + int idx) +{ + int i, j; + int err; + struct edac_device_instance *instance; + struct kobject *main_kobj; + + instance = &edac_dev->instances[idx]; + + /* Init the instance's kobject */ + memset(&instance->kobj, 0, sizeof(struct kobject)); + + /* set this new device under the edac_device main kobject */ + instance->kobj.parent = &edac_dev->kobj; + instance->kobj.ktype = &ktype_instance_ctrl; + instance->ctl = edac_dev; + + err = kobject_set_name(&instance->kobj, "%s", instance->name); + if (err) + goto err_out; + + /* bump the main kobject's reference count for this controller + * and this instance is dependant on the main + */ + main_kobj = kobject_get(&edac_dev->kobj); + if (!main_kobj) { + err = -ENODEV; + goto err_out; + } + + /* Formally register this instance's kobject */ + err = kobject_register(&instance->kobj); + if (err != 0) { + debugf2("%s() Failed to register instance '%s'\n", + __func__, instance->name); + kobject_put(main_kobj); + goto err_out; + } + + debugf4("%s() now register '%d' blocks for instance %d\n", + __func__, instance->nr_blocks, idx); + + /* register all blocks of this instance */ + for (i = 0; i < instance->nr_blocks; i++) { + err = edac_device_create_block(edac_dev, instance, + &instance->blocks[i]); + if (err) { + /* If any fail, remove all previous ones */ + for (j = 0; j < i; j++) + edac_device_delete_block(edac_dev, + &instance->blocks[j]); + goto err_release_instance_kobj; + } + } + + debugf4("%s() Registered instance %d '%s' kobject\n", + __func__, idx, instance->name); + + return 0; + + /* error unwind stack */ +err_release_instance_kobj: + kobject_unregister(&instance->kobj); + +err_out: + return err; +} + +/* + * edac_device_remove_instance + * remove an edac_device instance + */ +static void edac_device_delete_instance(struct edac_device_ctl_info *edac_dev, + int idx) +{ + struct edac_device_instance *instance; + int i; + + instance = &edac_dev->instances[idx]; + + /* unregister all blocks in this instance */ + for (i = 0; i < instance->nr_blocks; i++) + edac_device_delete_block(edac_dev, &instance->blocks[i]); + + /* unregister this instance's kobject, SEE: + * edac_device_ctrl_instance_release() for callback operation + */ + kobject_unregister(&instance->kobj); +} + +/* + * edac_device_create_instances + * create the first level of 'instances' for this device + * (ie 'cache' might have 'cache0', 'cache1', 'cache2', etc + */ +static int edac_device_create_instances(struct edac_device_ctl_info *edac_dev) +{ + int i, j; + int err; + + debugf0("%s()\n", __func__); + + /* iterate over creation of the instances */ + for (i = 0; i < edac_dev->nr_instances; i++) { + err = edac_device_create_instance(edac_dev, i); + if (err) { + /* unwind previous instances on error */ + for (j = 0; j < i; j++) + edac_device_delete_instance(edac_dev, j); + return err; + } + } + + return 0; +} + +/* + * edac_device_delete_instances(edac_dev); + * unregister all the kobjects of the instances + */ +static void edac_device_delete_instances(struct edac_device_ctl_info *edac_dev) +{ + int i; + + /* iterate over creation of the instances */ + for (i = 0; i < edac_dev->nr_instances; i++) + edac_device_delete_instance(edac_dev, i); +} + +/* edac_dev sysfs ctor/dtor code */ + +/* + * edac_device_add_main_sysfs_attributes + * add some attributes to this instance's main kobject + */ +static int edac_device_add_main_sysfs_attributes( + struct edac_device_ctl_info *edac_dev) +{ + struct edac_dev_sysfs_attribute *sysfs_attrib; + int err = 0; + + sysfs_attrib = edac_dev->sysfs_attributes; + if (sysfs_attrib) { + /* iterate over the array and create an attribute for each + * entry in the list + */ + while (sysfs_attrib->attr.name != NULL) { + err = sysfs_create_file(&edac_dev->kobj, + (struct attribute*) sysfs_attrib); + if (err) + goto err_out; + + sysfs_attrib++; + } + } + +err_out: + return err; +} + +/* + * edac_device_remove_main_sysfs_attributes + * remove any attributes to this instance's main kobject + */ +static void edac_device_remove_main_sysfs_attributes( + struct edac_device_ctl_info *edac_dev) +{ + struct edac_dev_sysfs_attribute *sysfs_attrib; + + /* if there are main attributes, defined, remove them. First, + * point to the start of the array and iterate over it + * removing each attribute listed from this device's instance's kobject + */ + sysfs_attrib = edac_dev->sysfs_attributes; + if (sysfs_attrib) { + while (sysfs_attrib->attr.name != NULL) { + sysfs_remove_file(&edac_dev->kobj, + (struct attribute *) sysfs_attrib); + sysfs_attrib++; + } + } +} + +/* + * edac_device_create_sysfs() Constructor + * + * accept a created edac_device control structure + * and 'export' it to sysfs. The 'main' kobj should already have been + * created. 'instance' and 'block' kobjects should be registered + * along with any 'block' attributes from the low driver. In addition, + * the main attributes (if any) are connected to the main kobject of + * the control structure. + * + * Return: + * 0 Success + * !0 Failure + */ +int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev) +{ + int err; + struct kobject *edac_kobj = &edac_dev->kobj; + + debugf0("%s() idx=%d\n", __func__, edac_dev->dev_idx); + + /* go create any main attributes callers wants */ + err = edac_device_add_main_sysfs_attributes(edac_dev); + if (err) { + debugf0("%s() failed to add sysfs attribs\n", __func__); + goto err_out; + } + + /* create a symlink from the edac device + * to the platform 'device' being used for this + */ + err = sysfs_create_link(edac_kobj, + &edac_dev->dev->kobj, EDAC_DEVICE_SYMLINK); + if (err) { + debugf0("%s() sysfs_create_link() returned err= %d\n", + __func__, err); + goto err_remove_main_attribs; + } + + /* Create the first level instance directories + * In turn, the nested blocks beneath the instances will + * be registered as well + */ + err = edac_device_create_instances(edac_dev); + if (err) { + debugf0("%s() edac_device_create_instances() " + "returned err= %d\n", __func__, err); + goto err_remove_link; + } + + + debugf4("%s() create-instances done, idx=%d\n", + __func__, edac_dev->dev_idx); + + return 0; + + /* Error unwind stack */ +err_remove_link: + /* remove the sym link */ + sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK); + +err_remove_main_attribs: + edac_device_remove_main_sysfs_attributes(edac_dev); + +err_out: + return err; +} + +/* + * edac_device_remove_sysfs() destructor + * + * given an edac_device struct, tear down the kobject resources + */ +void edac_device_remove_sysfs(struct edac_device_ctl_info *edac_dev) +{ + debugf0("%s()\n", __func__); + + /* remove any main attributes for this device */ + edac_device_remove_main_sysfs_attributes(edac_dev); + + /* remove the device sym link */ + sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK); + + /* walk the instance/block kobject tree, deconstructing it */ + edac_device_delete_instances(edac_dev); +} diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 7b622300d0e5..4471be362599 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -27,1200 +27,20 @@ #include <linux/list.h> #include <linux/sysdev.h> #include <linux/ctype.h> -#include <linux/kthread.h> -#include <linux/freezer.h> +#include <linux/edac.h> #include <asm/uaccess.h> #include <asm/page.h> #include <asm/edac.h> -#include "edac_mc.h" - -#define EDAC_MC_VERSION "Ver: 2.0.1 " __DATE__ - - -#ifdef CONFIG_EDAC_DEBUG -/* Values of 0 to 4 will generate output */ -int edac_debug_level = 1; -EXPORT_SYMBOL_GPL(edac_debug_level); -#endif - -/* EDAC Controls, setable by module parameter, and sysfs */ -static int log_ue = 1; -static int log_ce = 1; -static int panic_on_ue; -static int poll_msec = 1000; +#include "edac_core.h" +#include "edac_module.h" /* lock to memory controller's control array */ -static DECLARE_MUTEX(mem_ctls_mutex); +static DEFINE_MUTEX(mem_ctls_mutex); static struct list_head mc_devices = LIST_HEAD_INIT(mc_devices); -static struct task_struct *edac_thread; - -#ifdef CONFIG_PCI -static int check_pci_parity = 0; /* default YES check PCI parity */ -static int panic_on_pci_parity; /* default no panic on PCI Parity */ -static atomic_t pci_parity_count = ATOMIC_INIT(0); - -static struct kobject edac_pci_kobj; /* /sys/devices/system/edac/pci */ -static struct completion edac_pci_kobj_complete; -#endif /* CONFIG_PCI */ - -/* START sysfs data and methods */ - - -static const char *mem_types[] = { - [MEM_EMPTY] = "Empty", - [MEM_RESERVED] = "Reserved", - [MEM_UNKNOWN] = "Unknown", - [MEM_FPM] = "FPM", - [MEM_EDO] = "EDO", - [MEM_BEDO] = "BEDO", - [MEM_SDR] = "Unbuffered-SDR", - [MEM_RDR] = "Registered-SDR", - [MEM_DDR] = "Unbuffered-DDR", - [MEM_RDDR] = "Registered-DDR", - [MEM_RMBS] = "RMBS" -}; - -static const char *dev_types[] = { - [DEV_UNKNOWN] = "Unknown", - [DEV_X1] = "x1", - [DEV_X2] = "x2", - [DEV_X4] = "x4", - [DEV_X8] = "x8", - [DEV_X16] = "x16", - [DEV_X32] = "x32", - [DEV_X64] = "x64" -}; - -static const char *edac_caps[] = { - [EDAC_UNKNOWN] = "Unknown", - [EDAC_NONE] = "None", - [EDAC_RESERVED] = "Reserved", - [EDAC_PARITY] = "PARITY", - [EDAC_EC] = "EC", - [EDAC_SECDED] = "SECDED", - [EDAC_S2ECD2ED] = "S2ECD2ED", - [EDAC_S4ECD4ED] = "S4ECD4ED", - [EDAC_S8ECD8ED] = "S8ECD8ED", - [EDAC_S16ECD16ED] = "S16ECD16ED" -}; - -/* sysfs object: /sys/devices/system/edac */ -static struct sysdev_class edac_class = { - set_kset_name("edac"), -}; - -/* sysfs object: - * /sys/devices/system/edac/mc - */ -static struct kobject edac_memctrl_kobj; - -/* We use these to wait for the reference counts on edac_memctrl_kobj and - * edac_pci_kobj to reach 0. - */ -static struct completion edac_memctrl_kobj_complete; - -/* - * /sys/devices/system/edac/mc; - * data structures and methods - */ -static ssize_t memctrl_int_show(void *ptr, char *buffer) -{ - int *value = (int*) ptr; - return sprintf(buffer, "%u\n", *value); -} - -static ssize_t memctrl_int_store(void *ptr, const char *buffer, size_t count) -{ - int *value = (int*) ptr; - - if (isdigit(*buffer)) - *value = simple_strtoul(buffer, NULL, 0); - - return count; -} - -struct memctrl_dev_attribute { - struct attribute attr; - void *value; - ssize_t (*show)(void *,char *); - ssize_t (*store)(void *, const char *, size_t); -}; - -/* Set of show/store abstract level functions for memory control object */ -static ssize_t memctrl_dev_show(struct kobject *kobj, - struct attribute *attr, char *buffer) -{ - struct memctrl_dev_attribute *memctrl_dev; - memctrl_dev = (struct memctrl_dev_attribute*)attr; - - if (memctrl_dev->show) - return memctrl_dev->show(memctrl_dev->value, buffer); - - return -EIO; -} - -static ssize_t memctrl_dev_store(struct kobject *kobj, struct attribute *attr, - const char *buffer, size_t count) -{ - struct memctrl_dev_attribute *memctrl_dev; - memctrl_dev = (struct memctrl_dev_attribute*)attr; - - if (memctrl_dev->store) - return memctrl_dev->store(memctrl_dev->value, buffer, count); - - return -EIO; -} - -static struct sysfs_ops memctrlfs_ops = { - .show = memctrl_dev_show, - .store = memctrl_dev_store -}; - -#define MEMCTRL_ATTR(_name,_mode,_show,_store) \ -struct memctrl_dev_attribute attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .value = &_name, \ - .show = _show, \ - .store = _store, \ -}; - -#define MEMCTRL_STRING_ATTR(_name,_data,_mode,_show,_store) \ -struct memctrl_dev_attribute attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .value = _data, \ - .show = _show, \ - .store = _store, \ -}; - -/* csrow<id> control files */ -MEMCTRL_ATTR(panic_on_ue,S_IRUGO|S_IWUSR,memctrl_int_show,memctrl_int_store); -MEMCTRL_ATTR(log_ue,S_IRUGO|S_IWUSR,memctrl_int_show,memctrl_int_store); -MEMCTRL_ATTR(log_ce,S_IRUGO|S_IWUSR,memctrl_int_show,memctrl_int_store); -MEMCTRL_ATTR(poll_msec,S_IRUGO|S_IWUSR,memctrl_int_show,memctrl_int_store); - -/* Base Attributes of the memory ECC object */ -static struct memctrl_dev_attribute *memctrl_attr[] = { - &attr_panic_on_ue, - &attr_log_ue, - &attr_log_ce, - &attr_poll_msec, - NULL, -}; - -/* Main MC kobject release() function */ -static void edac_memctrl_master_release(struct kobject *kobj) -{ - debugf1("%s()\n", __func__); - complete(&edac_memctrl_kobj_complete); -} - -static struct kobj_type ktype_memctrl = { - .release = edac_memctrl_master_release, - .sysfs_ops = &memctrlfs_ops, - .default_attrs = (struct attribute **) memctrl_attr, -}; - -/* Initialize the main sysfs entries for edac: - * /sys/devices/system/edac - * - * and children - * - * Return: 0 SUCCESS - * !0 FAILURE - */ -static int edac_sysfs_memctrl_setup(void) -{ - int err = 0; - - debugf1("%s()\n", __func__); - - /* create the /sys/devices/system/edac directory */ - err = sysdev_class_register(&edac_class); - - if (err) { - debugf1("%s() error=%d\n", __func__, err); - return err; - } - - /* Init the MC's kobject */ - memset(&edac_memctrl_kobj, 0, sizeof (edac_memctrl_kobj)); - edac_memctrl_kobj.parent = &edac_class.kset.kobj; - edac_memctrl_kobj.ktype = &ktype_memctrl; - - /* generate sysfs "..../edac/mc" */ - err = kobject_set_name(&edac_memctrl_kobj,"mc"); - - if (err) - goto fail; - - /* FIXME: maybe new sysdev_create_subdir() */ - err = kobject_register(&edac_memctrl_kobj); - - if (err) { - debugf1("Failed to register '.../edac/mc'\n"); - goto fail; - } - - debugf1("Registered '.../edac/mc' kobject\n"); - - return 0; - -fail: - sysdev_class_unregister(&edac_class); - return err; -} - -/* - * MC teardown: - * the '..../edac/mc' kobject followed by '..../edac' itself - */ -static void edac_sysfs_memctrl_teardown(void) -{ - debugf0("MC: " __FILE__ ": %s()\n", __func__); - - /* Unregister the MC's kobject and wait for reference count to reach - * 0. - */ - init_completion(&edac_memctrl_kobj_complete); - kobject_unregister(&edac_memctrl_kobj); - wait_for_completion(&edac_memctrl_kobj_complete); - - /* Unregister the 'edac' object */ - sysdev_class_unregister(&edac_class); -} - -#ifdef CONFIG_PCI -static ssize_t edac_pci_int_show(void *ptr, char *buffer) -{ - int *value = ptr; - return sprintf(buffer,"%d\n",*value); -} - -static ssize_t edac_pci_int_store(void *ptr, const char *buffer, size_t count) -{ - int *value = ptr; - - if (isdigit(*buffer)) - *value = simple_strtoul(buffer,NULL,0); - - return count; -} - -struct edac_pci_dev_attribute { - struct attribute attr; - void *value; - ssize_t (*show)(void *,char *); - ssize_t (*store)(void *, const char *,size_t); -}; - -/* Set of show/store abstract level functions for PCI Parity object */ -static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr, - char *buffer) -{ - struct edac_pci_dev_attribute *edac_pci_dev; - edac_pci_dev= (struct edac_pci_dev_attribute*)attr; - - if (edac_pci_dev->show) - return edac_pci_dev->show(edac_pci_dev->value, buffer); - return -EIO; -} - -static ssize_t edac_pci_dev_store(struct kobject *kobj, - struct attribute *attr, const char *buffer, size_t count) -{ - struct edac_pci_dev_attribute *edac_pci_dev; - edac_pci_dev= (struct edac_pci_dev_attribute*)attr; - - if (edac_pci_dev->show) - return edac_pci_dev->store(edac_pci_dev->value, buffer, count); - return -EIO; -} - -static struct sysfs_ops edac_pci_sysfs_ops = { - .show = edac_pci_dev_show, - .store = edac_pci_dev_store -}; - -#define EDAC_PCI_ATTR(_name,_mode,_show,_store) \ -struct edac_pci_dev_attribute edac_pci_attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .value = &_name, \ - .show = _show, \ - .store = _store, \ -}; - -#define EDAC_PCI_STRING_ATTR(_name,_data,_mode,_show,_store) \ -struct edac_pci_dev_attribute edac_pci_attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .value = _data, \ - .show = _show, \ - .store = _store, \ -}; - -/* PCI Parity control files */ -EDAC_PCI_ATTR(check_pci_parity, S_IRUGO|S_IWUSR, edac_pci_int_show, - edac_pci_int_store); -EDAC_PCI_ATTR(panic_on_pci_parity, S_IRUGO|S_IWUSR, edac_pci_int_show, - edac_pci_int_store); -EDAC_PCI_ATTR(pci_parity_count, S_IRUGO, edac_pci_int_show, NULL); - -/* Base Attributes of the memory ECC object */ -static struct edac_pci_dev_attribute *edac_pci_attr[] = { - &edac_pci_attr_check_pci_parity, - &edac_pci_attr_panic_on_pci_parity, - &edac_pci_attr_pci_parity_count, - NULL, -}; - -/* No memory to release */ -static void edac_pci_release(struct kobject *kobj) -{ - debugf1("%s()\n", __func__); - complete(&edac_pci_kobj_complete); -} - -static struct kobj_type ktype_edac_pci = { - .release = edac_pci_release, - .sysfs_ops = &edac_pci_sysfs_ops, - .default_attrs = (struct attribute **) edac_pci_attr, -}; - -/** - * edac_sysfs_pci_setup() - * - */ -static int edac_sysfs_pci_setup(void) -{ - int err; - - debugf1("%s()\n", __func__); - - memset(&edac_pci_kobj, 0, sizeof(edac_pci_kobj)); - edac_pci_kobj.parent = &edac_class.kset.kobj; - edac_pci_kobj.ktype = &ktype_edac_pci; - err = kobject_set_name(&edac_pci_kobj, "pci"); - - if (!err) { - /* Instanstiate the csrow object */ - /* FIXME: maybe new sysdev_create_subdir() */ - err = kobject_register(&edac_pci_kobj); - - if (err) - debugf1("Failed to register '.../edac/pci'\n"); - else - debugf1("Registered '.../edac/pci' kobject\n"); - } - - return err; -} - -static void edac_sysfs_pci_teardown(void) -{ - debugf0("%s()\n", __func__); - init_completion(&edac_pci_kobj_complete); - kobject_unregister(&edac_pci_kobj); - wait_for_completion(&edac_pci_kobj_complete); -} - - -static u16 get_pci_parity_status(struct pci_dev *dev, int secondary) -{ - int where; - u16 status; - - where = secondary ? PCI_SEC_STATUS : PCI_STATUS; - pci_read_config_word(dev, where, &status); - - /* If we get back 0xFFFF then we must suspect that the card has been - * pulled but the Linux PCI layer has not yet finished cleaning up. - * We don't want to report on such devices - */ - - if (status == 0xFFFF) { - u32 sanity; - - pci_read_config_dword(dev, 0, &sanity); - - if (sanity == 0xFFFFFFFF) - return 0; - } - - status &= PCI_STATUS_DETECTED_PARITY | PCI_STATUS_SIG_SYSTEM_ERROR | - PCI_STATUS_PARITY; - - if (status) - /* reset only the bits we are interested in */ - pci_write_config_word(dev, where, status); - - return status; -} - -typedef void (*pci_parity_check_fn_t) (struct pci_dev *dev); - -/* Clear any PCI parity errors logged by this device. */ -static void edac_pci_dev_parity_clear(struct pci_dev *dev) -{ - u8 header_type; - - get_pci_parity_status(dev, 0); - - /* read the device TYPE, looking for bridges */ - pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type); - - if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) - get_pci_parity_status(dev, 1); -} - -/* - * PCI Parity polling - * - */ -static void edac_pci_dev_parity_test(struct pci_dev *dev) -{ - u16 status; - u8 header_type; - - /* read the STATUS register on this device - */ - status = get_pci_parity_status(dev, 0); - - debugf2("PCI STATUS= 0x%04x %s\n", status, dev->dev.bus_id ); - - /* check the status reg for errors */ - if (status) { - if (status & (PCI_STATUS_SIG_SYSTEM_ERROR)) - edac_printk(KERN_CRIT, EDAC_PCI, - "Signaled System Error on %s\n", - pci_name(dev)); - - if (status & (PCI_STATUS_PARITY)) { - edac_printk(KERN_CRIT, EDAC_PCI, - "Master Data Parity Error on %s\n", - pci_name(dev)); - - atomic_inc(&pci_parity_count); - } - - if (status & (PCI_STATUS_DETECTED_PARITY)) { - edac_printk(KERN_CRIT, EDAC_PCI, - "Detected Parity Error on %s\n", - pci_name(dev)); - - atomic_inc(&pci_parity_count); - } - } - - /* read the device TYPE, looking for bridges */ - pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type); - - debugf2("PCI HEADER TYPE= 0x%02x %s\n", header_type, dev->dev.bus_id ); - - if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { - /* On bridges, need to examine secondary status register */ - status = get_pci_parity_status(dev, 1); - - debugf2("PCI SEC_STATUS= 0x%04x %s\n", - status, dev->dev.bus_id ); - - /* check the secondary status reg for errors */ - if (status) { - if (status & (PCI_STATUS_SIG_SYSTEM_ERROR)) - edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " - "Signaled System Error on %s\n", - pci_name(dev)); - - if (status & (PCI_STATUS_PARITY)) { - edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " - "Master Data Parity Error on " - "%s\n", pci_name(dev)); - - atomic_inc(&pci_parity_count); - } - - if (status & (PCI_STATUS_DETECTED_PARITY)) { - edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " - "Detected Parity Error on %s\n", - pci_name(dev)); - - atomic_inc(&pci_parity_count); - } - } - } -} - -/* - * pci_dev parity list iterator - * Scan the PCI device list for one iteration, looking for SERRORs - * Master Parity ERRORS or Parity ERRORs on primary or secondary devices - */ -static inline void edac_pci_dev_parity_iterator(pci_parity_check_fn_t fn) -{ - struct pci_dev *dev = NULL; - - /* request for kernel access to the next PCI device, if any, - * and while we are looking at it have its reference count - * bumped until we are done with it - */ - while((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { - fn(dev); - } -} - -static void do_pci_parity_check(void) -{ - unsigned long flags; - int before_count; - - debugf3("%s()\n", __func__); - - if (!check_pci_parity) - return; - - before_count = atomic_read(&pci_parity_count); - - /* scan all PCI devices looking for a Parity Error on devices and - * bridges - */ - local_irq_save(flags); - edac_pci_dev_parity_iterator(edac_pci_dev_parity_test); - local_irq_restore(flags); - - /* Only if operator has selected panic on PCI Error */ - if (panic_on_pci_parity) { - /* If the count is different 'after' from 'before' */ - if (before_count != atomic_read(&pci_parity_count)) - panic("EDAC: PCI Parity Error"); - } -} - -static inline void clear_pci_parity_errors(void) -{ - /* Clear any PCI bus parity errors that devices initially have logged - * in their registers. - */ - edac_pci_dev_parity_iterator(edac_pci_dev_parity_clear); -} - -#else /* CONFIG_PCI */ - -/* pre-process these away */ -#define do_pci_parity_check() -#define clear_pci_parity_errors() -#define edac_sysfs_pci_teardown() -#define edac_sysfs_pci_setup() (0) - -#endif /* CONFIG_PCI */ - -/* EDAC sysfs CSROW data structures and methods - */ - -/* Set of more default csrow<id> attribute show/store functions */ -static ssize_t csrow_ue_count_show(struct csrow_info *csrow, char *data, int private) -{ - return sprintf(data,"%u\n", csrow->ue_count); -} - -static ssize_t csrow_ce_count_show(struct csrow_info *csrow, char *data, int private) -{ - return sprintf(data,"%u\n", csrow->ce_count); -} - -static ssize_t csrow_size_show(struct csrow_info *csrow, char *data, int private) -{ - return sprintf(data,"%u\n", PAGES_TO_MiB(csrow->nr_pages)); -} - -static ssize_t csrow_mem_type_show(struct csrow_info *csrow, char *data, int private) -{ - return sprintf(data,"%s\n", mem_types[csrow->mtype]); -} - -static ssize_t csrow_dev_type_show(struct csrow_info *csrow, char *data, int private) -{ - return sprintf(data,"%s\n", dev_types[csrow->dtype]); -} - -static ssize_t csrow_edac_mode_show(struct csrow_info *csrow, char *data, int private) -{ - return sprintf(data,"%s\n", edac_caps[csrow->edac_mode]); -} - -/* show/store functions for DIMM Label attributes */ -static ssize_t channel_dimm_label_show(struct csrow_info *csrow, - char *data, int channel) -{ - return snprintf(data, EDAC_MC_LABEL_LEN,"%s", - csrow->channels[channel].label); -} - -static ssize_t channel_dimm_label_store(struct csrow_info *csrow, - const char *data, - size_t count, - int channel) -{ - ssize_t max_size = 0; - - max_size = min((ssize_t)count,(ssize_t)EDAC_MC_LABEL_LEN-1); - strncpy(csrow->channels[channel].label, data, max_size); - csrow->channels[channel].label[max_size] = '\0'; - - return max_size; -} - -/* show function for dynamic chX_ce_count attribute */ -static ssize_t channel_ce_count_show(struct csrow_info *csrow, - char *data, - int channel) -{ - return sprintf(data, "%u\n", csrow->channels[channel].ce_count); -} - -/* csrow specific attribute structure */ -struct csrowdev_attribute { - struct attribute attr; - ssize_t (*show)(struct csrow_info *,char *,int); - ssize_t (*store)(struct csrow_info *, const char *,size_t,int); - int private; -}; - -#define to_csrow(k) container_of(k, struct csrow_info, kobj) -#define to_csrowdev_attr(a) container_of(a, struct csrowdev_attribute, attr) - -/* Set of show/store higher level functions for default csrow attributes */ -static ssize_t csrowdev_show(struct kobject *kobj, - struct attribute *attr, - char *buffer) -{ - struct csrow_info *csrow = to_csrow(kobj); - struct csrowdev_attribute *csrowdev_attr = to_csrowdev_attr(attr); - - if (csrowdev_attr->show) - return csrowdev_attr->show(csrow, - buffer, - csrowdev_attr->private); - return -EIO; -} - -static ssize_t csrowdev_store(struct kobject *kobj, struct attribute *attr, - const char *buffer, size_t count) -{ - struct csrow_info *csrow = to_csrow(kobj); - struct csrowdev_attribute * csrowdev_attr = to_csrowdev_attr(attr); - - if (csrowdev_attr->store) - return csrowdev_attr->store(csrow, - buffer, - count, - csrowdev_attr->private); - return -EIO; -} - -static struct sysfs_ops csrowfs_ops = { - .show = csrowdev_show, - .store = csrowdev_store -}; - -#define CSROWDEV_ATTR(_name,_mode,_show,_store,_private) \ -struct csrowdev_attribute attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .show = _show, \ - .store = _store, \ - .private = _private, \ -}; - -/* default cwrow<id>/attribute files */ -CSROWDEV_ATTR(size_mb,S_IRUGO,csrow_size_show,NULL,0); -CSROWDEV_ATTR(dev_type,S_IRUGO,csrow_dev_type_show,NULL,0); -CSROWDEV_ATTR(mem_type,S_IRUGO,csrow_mem_type_show,NULL,0); -CSROWDEV_ATTR(edac_mode,S_IRUGO,csrow_edac_mode_show,NULL,0); -CSROWDEV_ATTR(ue_count,S_IRUGO,csrow_ue_count_show,NULL,0); -CSROWDEV_ATTR(ce_count,S_IRUGO,csrow_ce_count_show,NULL,0); - -/* default attributes of the CSROW<id> object */ -static struct csrowdev_attribute *default_csrow_attr[] = { - &attr_dev_type, - &attr_mem_type, - &attr_edac_mode, - &attr_size_mb, - &attr_ue_count, - &attr_ce_count, - NULL, -}; - - -/* possible dynamic channel DIMM Label attribute files */ -CSROWDEV_ATTR(ch0_dimm_label,S_IRUGO|S_IWUSR, - channel_dimm_label_show, - channel_dimm_label_store, - 0 ); -CSROWDEV_ATTR(ch1_dimm_label,S_IRUGO|S_IWUSR, - channel_dimm_label_show, - channel_dimm_label_store, - 1 ); -CSROWDEV_ATTR(ch2_dimm_label,S_IRUGO|S_IWUSR, - channel_dimm_label_show, - channel_dimm_label_store, - 2 ); -CSROWDEV_ATTR(ch3_dimm_label,S_IRUGO|S_IWUSR, - channel_dimm_label_show, - channel_dimm_label_store, - 3 ); -CSROWDEV_ATTR(ch4_dimm_label,S_IRUGO|S_IWUSR, - channel_dimm_label_show, - channel_dimm_label_store, - 4 ); -CSROWDEV_ATTR(ch5_dimm_label,S_IRUGO|S_IWUSR, - channel_dimm_label_show, - channel_dimm_label_store, - 5 ); - -/* Total possible dynamic DIMM Label attribute file table */ -static struct csrowdev_attribute *dynamic_csrow_dimm_attr[] = { - &attr_ch0_dimm_label, - &attr_ch1_dimm_label, - &attr_ch2_dimm_label, - &attr_ch3_dimm_label, - &attr_ch4_dimm_label, - &attr_ch5_dimm_label -}; - -/* possible dynamic channel ce_count attribute files */ -CSROWDEV_ATTR(ch0_ce_count,S_IRUGO|S_IWUSR, - channel_ce_count_show, - NULL, - 0 ); -CSROWDEV_ATTR(ch1_ce_count,S_IRUGO|S_IWUSR, - channel_ce_count_show, - NULL, - 1 ); -CSROWDEV_ATTR(ch2_ce_count,S_IRUGO|S_IWUSR, - channel_ce_count_show, - NULL, - 2 ); -CSROWDEV_ATTR(ch3_ce_count,S_IRUGO|S_IWUSR, - channel_ce_count_show, - NULL, - 3 ); -CSROWDEV_ATTR(ch4_ce_count,S_IRUGO|S_IWUSR, - channel_ce_count_show, - NULL, - 4 ); -CSROWDEV_ATTR(ch5_ce_count,S_IRUGO|S_IWUSR, - channel_ce_count_show, - NULL, - 5 ); - -/* Total possible dynamic ce_count attribute file table */ -static struct csrowdev_attribute *dynamic_csrow_ce_count_attr[] = { - &attr_ch0_ce_count, - &attr_ch1_ce_count, - &attr_ch2_ce_count, - &attr_ch3_ce_count, - &attr_ch4_ce_count, - &attr_ch5_ce_count -}; - - -#define EDAC_NR_CHANNELS 6 - -/* Create dynamic CHANNEL files, indexed by 'chan', under specifed CSROW */ -static int edac_create_channel_files(struct kobject *kobj, int chan) -{ - int err=-ENODEV; - - if (chan >= EDAC_NR_CHANNELS) - return err; - - /* create the DIMM label attribute file */ - err = sysfs_create_file(kobj, - (struct attribute *) dynamic_csrow_dimm_attr[chan]); - - if (!err) { - /* create the CE Count attribute file */ - err = sysfs_create_file(kobj, - (struct attribute *) dynamic_csrow_ce_count_attr[chan]); - } else { - debugf1("%s() dimm labels and ce_count files created", __func__); - } - - return err; -} - -/* No memory to release for this kobj */ -static void edac_csrow_instance_release(struct kobject *kobj) -{ - struct csrow_info *cs; - - cs = container_of(kobj, struct csrow_info, kobj); - complete(&cs->kobj_complete); -} - -/* the kobj_type instance for a CSROW */ -static struct kobj_type ktype_csrow = { - .release = edac_csrow_instance_release, - .sysfs_ops = &csrowfs_ops, - .default_attrs = (struct attribute **) default_csrow_attr, -}; - -/* Create a CSROW object under specifed edac_mc_device */ -static int edac_create_csrow_object( - struct kobject *edac_mci_kobj, - struct csrow_info *csrow, - int index) -{ - int err = 0; - int chan; - - memset(&csrow->kobj, 0, sizeof(csrow->kobj)); - - /* generate ..../edac/mc/mc<id>/csrow<index> */ - - csrow->kobj.parent = edac_mci_kobj; - csrow->kobj.ktype = &ktype_csrow; - - /* name this instance of csrow<id> */ - err = kobject_set_name(&csrow->kobj,"csrow%d",index); - if (err) - goto error_exit; - - /* Instanstiate the csrow object */ - err = kobject_register(&csrow->kobj); - if (!err) { - /* Create the dyanmic attribute files on this csrow, - * namely, the DIMM labels and the channel ce_count - */ - for (chan = 0; chan < csrow->nr_channels; chan++) { - err = edac_create_channel_files(&csrow->kobj,chan); - if (err) - break; - } - } - -error_exit: - return err; -} - -/* default sysfs methods and data structures for the main MCI kobject */ - -static ssize_t mci_reset_counters_store(struct mem_ctl_info *mci, - const char *data, size_t count) -{ - int row, chan; - - mci->ue_noinfo_count = 0; - mci->ce_noinfo_count = 0; - mci->ue_count = 0; - mci->ce_count = 0; - - for (row = 0; row < mci->nr_csrows; row++) { - struct csrow_info *ri = &mci->csrows[row]; - - ri->ue_count = 0; - ri->ce_count = 0; - - for (chan = 0; chan < ri->nr_channels; chan++) - ri->channels[chan].ce_count = 0; - } - - mci->start_time = jiffies; - return count; -} - -/* memory scrubbing */ -static ssize_t mci_sdram_scrub_rate_store(struct mem_ctl_info *mci, - const char *data, size_t count) -{ - u32 bandwidth = -1; - - if (mci->set_sdram_scrub_rate) { - - memctrl_int_store(&bandwidth, data, count); - - if (!(*mci->set_sdram_scrub_rate)(mci, &bandwidth)) { - edac_printk(KERN_DEBUG, EDAC_MC, - "Scrub rate set successfully, applied: %d\n", - bandwidth); - } else { - /* FIXME: error codes maybe? */ - edac_printk(KERN_DEBUG, EDAC_MC, - "Scrub rate set FAILED, could not apply: %d\n", - bandwidth); - } - } else { - /* FIXME: produce "not implemented" ERROR for user-side. */ - edac_printk(KERN_WARNING, EDAC_MC, - "Memory scrubbing 'set'control is not implemented!\n"); - } - return count; -} - -static ssize_t mci_sdram_scrub_rate_show(struct mem_ctl_info *mci, char *data) -{ - u32 bandwidth = -1; - - if (mci->get_sdram_scrub_rate) { - if (!(*mci->get_sdram_scrub_rate)(mci, &bandwidth)) { - edac_printk(KERN_DEBUG, EDAC_MC, - "Scrub rate successfully, fetched: %d\n", - bandwidth); - } else { - /* FIXME: error codes maybe? */ - edac_printk(KERN_DEBUG, EDAC_MC, - "Scrub rate fetch FAILED, got: %d\n", - bandwidth); - } - } else { - /* FIXME: produce "not implemented" ERROR for user-side. */ - edac_printk(KERN_WARNING, EDAC_MC, - "Memory scrubbing 'get' control is not implemented!\n"); - } - return sprintf(data, "%d\n", bandwidth); -} - -/* default attribute files for the MCI object */ -static ssize_t mci_ue_count_show(struct mem_ctl_info *mci, char *data) -{ - return sprintf(data,"%d\n", mci->ue_count); -} - -static ssize_t mci_ce_count_show(struct mem_ctl_info *mci, char *data) -{ - return sprintf(data,"%d\n", mci->ce_count); -} - -static ssize_t mci_ce_noinfo_show(struct mem_ctl_info *mci, char *data) -{ - return sprintf(data,"%d\n", mci->ce_noinfo_count); -} - -static ssize_t mci_ue_noinfo_show(struct mem_ctl_info *mci, char *data) -{ - return sprintf(data,"%d\n", mci->ue_noinfo_count); -} - -static ssize_t mci_seconds_show(struct mem_ctl_info *mci, char *data) -{ - return sprintf(data,"%ld\n", (jiffies - mci->start_time) / HZ); -} - -static ssize_t mci_ctl_name_show(struct mem_ctl_info *mci, char *data) -{ - return sprintf(data,"%s\n", mci->ctl_name); -} - -static ssize_t mci_size_mb_show(struct mem_ctl_info *mci, char *data) -{ - int total_pages, csrow_idx; - - for (total_pages = csrow_idx = 0; csrow_idx < mci->nr_csrows; - csrow_idx++) { - struct csrow_info *csrow = &mci->csrows[csrow_idx]; - - if (!csrow->nr_pages) - continue; - - total_pages += csrow->nr_pages; - } - - return sprintf(data,"%u\n", PAGES_TO_MiB(total_pages)); -} - -struct mcidev_attribute { - struct attribute attr; - ssize_t (*show)(struct mem_ctl_info *,char *); - ssize_t (*store)(struct mem_ctl_info *, const char *,size_t); -}; - -#define to_mci(k) container_of(k, struct mem_ctl_info, edac_mci_kobj) -#define to_mcidev_attr(a) container_of(a, struct mcidev_attribute, attr) - -/* MCI show/store functions for top most object */ -static ssize_t mcidev_show(struct kobject *kobj, struct attribute *attr, - char *buffer) -{ - struct mem_ctl_info *mem_ctl_info = to_mci(kobj); - struct mcidev_attribute * mcidev_attr = to_mcidev_attr(attr); - - if (mcidev_attr->show) - return mcidev_attr->show(mem_ctl_info, buffer); - - return -EIO; -} - -static ssize_t mcidev_store(struct kobject *kobj, struct attribute *attr, - const char *buffer, size_t count) -{ - struct mem_ctl_info *mem_ctl_info = to_mci(kobj); - struct mcidev_attribute * mcidev_attr = to_mcidev_attr(attr); - - if (mcidev_attr->store) - return mcidev_attr->store(mem_ctl_info, buffer, count); - - return -EIO; -} - -static struct sysfs_ops mci_ops = { - .show = mcidev_show, - .store = mcidev_store -}; - -#define MCIDEV_ATTR(_name,_mode,_show,_store) \ -struct mcidev_attribute mci_attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .show = _show, \ - .store = _store, \ -}; - -/* default Control file */ -MCIDEV_ATTR(reset_counters,S_IWUSR,NULL,mci_reset_counters_store); - -/* default Attribute files */ -MCIDEV_ATTR(mc_name,S_IRUGO,mci_ctl_name_show,NULL); -MCIDEV_ATTR(size_mb,S_IRUGO,mci_size_mb_show,NULL); -MCIDEV_ATTR(seconds_since_reset,S_IRUGO,mci_seconds_show,NULL); -MCIDEV_ATTR(ue_noinfo_count,S_IRUGO,mci_ue_noinfo_show,NULL); -MCIDEV_ATTR(ce_noinfo_count,S_IRUGO,mci_ce_noinfo_show,NULL); -MCIDEV_ATTR(ue_count,S_IRUGO,mci_ue_count_show,NULL); -MCIDEV_ATTR(ce_count,S_IRUGO,mci_ce_count_show,NULL); - -/* memory scrubber attribute file */ -MCIDEV_ATTR(sdram_scrub_rate,S_IRUGO|S_IWUSR,mci_sdram_scrub_rate_show,mci_sdram_scrub_rate_store); - -static struct mcidev_attribute *mci_attr[] = { - &mci_attr_reset_counters, - &mci_attr_mc_name, - &mci_attr_size_mb, - &mci_attr_seconds_since_reset, - &mci_attr_ue_noinfo_count, - &mci_attr_ce_noinfo_count, - &mci_attr_ue_count, - &mci_attr_ce_count, - &mci_attr_sdram_scrub_rate, - NULL -}; - -/* - * Release of a MC controlling instance - */ -static void edac_mci_instance_release(struct kobject *kobj) -{ - struct mem_ctl_info *mci; - - mci = to_mci(kobj); - debugf0("%s() idx=%d\n", __func__, mci->mc_idx); - complete(&mci->kobj_complete); -} - -static struct kobj_type ktype_mci = { - .release = edac_mci_instance_release, - .sysfs_ops = &mci_ops, - .default_attrs = (struct attribute **) mci_attr, -}; - - -#define EDAC_DEVICE_SYMLINK "device" - -/* - * Create a new Memory Controller kobject instance, - * mc<id> under the 'mc' directory - * - * Return: - * 0 Success - * !0 Failure - */ -static int edac_create_sysfs_mci_device(struct mem_ctl_info *mci) -{ - int i; - int err; - struct csrow_info *csrow; - struct kobject *edac_mci_kobj=&mci->edac_mci_kobj; - - debugf0("%s() idx=%d\n", __func__, mci->mc_idx); - memset(edac_mci_kobj, 0, sizeof(*edac_mci_kobj)); - - /* set the name of the mc<id> object */ - err = kobject_set_name(edac_mci_kobj,"mc%d",mci->mc_idx); - if (err) - return err; - - /* link to our parent the '..../edac/mc' object */ - edac_mci_kobj->parent = &edac_memctrl_kobj; - edac_mci_kobj->ktype = &ktype_mci; - - /* register the mc<id> kobject */ - err = kobject_register(edac_mci_kobj); - if (err) - return err; - - /* create a symlink for the device */ - err = sysfs_create_link(edac_mci_kobj, &mci->dev->kobj, - EDAC_DEVICE_SYMLINK); - if (err) - goto fail0; - - /* Make directories for each CSROW object - * under the mc<id> kobject - */ - for (i = 0; i < mci->nr_csrows; i++) { - csrow = &mci->csrows[i]; - - /* Only expose populated CSROWs */ - if (csrow->nr_pages > 0) { - err = edac_create_csrow_object(edac_mci_kobj,csrow,i); - if (err) - goto fail1; - } - } - - return 0; - - /* CSROW error: backout what has already been registered, */ -fail1: - for ( i--; i >= 0; i--) { - if (csrow->nr_pages > 0) { - init_completion(&csrow->kobj_complete); - kobject_unregister(&mci->csrows[i].kobj); - wait_for_completion(&csrow->kobj_complete); - } - } - -fail0: - init_completion(&mci->kobj_complete); - kobject_unregister(edac_mci_kobj); - wait_for_completion(&mci->kobj_complete); - return err; -} - -/* - * remove a Memory Controller instance - */ -static void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci) -{ - int i; - - debugf0("%s()\n", __func__); - - /* remove all csrow kobjects */ - for (i = 0; i < mci->nr_csrows; i++) { - if (mci->csrows[i].nr_pages > 0) { - init_completion(&mci->csrows[i].kobj_complete); - kobject_unregister(&mci->csrows[i].kobj); - wait_for_completion(&mci->csrows[i].kobj_complete); - } - } - - sysfs_remove_link(&mci->edac_mci_kobj, EDAC_DEVICE_SYMLINK); - init_completion(&mci->kobj_complete); - kobject_unregister(&mci->edac_mci_kobj); - wait_for_completion(&mci->kobj_complete); -} - -/* END OF sysfs data and methods */ - #ifdef CONFIG_EDAC_DEBUG -void edac_mc_dump_channel(struct channel_info *chan) +static void edac_mc_dump_channel(struct channel_info *chan) { debugf4("\tchannel = %p\n", chan); debugf4("\tchannel->chan_idx = %d\n", chan->chan_idx); @@ -1228,25 +48,21 @@ void edac_mc_dump_channel(struct channel_info *chan) debugf4("\tchannel->label = '%s'\n", chan->label); debugf4("\tchannel->csrow = %p\n\n", chan->csrow); } -EXPORT_SYMBOL_GPL(edac_mc_dump_channel); -void edac_mc_dump_csrow(struct csrow_info *csrow) +static void edac_mc_dump_csrow(struct csrow_info *csrow) { debugf4("\tcsrow = %p\n", csrow); debugf4("\tcsrow->csrow_idx = %d\n", csrow->csrow_idx); - debugf4("\tcsrow->first_page = 0x%lx\n", - csrow->first_page); + debugf4("\tcsrow->first_page = 0x%lx\n", csrow->first_page); debugf4("\tcsrow->last_page = 0x%lx\n", csrow->last_page); debugf4("\tcsrow->page_mask = 0x%lx\n", csrow->page_mask); debugf4("\tcsrow->nr_pages = 0x%x\n", csrow->nr_pages); - debugf4("\tcsrow->nr_channels = %d\n", - csrow->nr_channels); + debugf4("\tcsrow->nr_channels = %d\n", csrow->nr_channels); debugf4("\tcsrow->channels = %p\n", csrow->channels); debugf4("\tcsrow->mci = %p\n\n", csrow->mci); } -EXPORT_SYMBOL_GPL(edac_mc_dump_csrow); -void edac_mc_dump_mci(struct mem_ctl_info *mci) +static void edac_mc_dump_mci(struct mem_ctl_info *mci) { debugf3("\tmci = %p\n", mci); debugf3("\tmci->mtype_cap = %lx\n", mci->mtype_cap); @@ -1256,13 +72,11 @@ void edac_mc_dump_mci(struct mem_ctl_info *mci) debugf3("\tmci->nr_csrows = %d, csrows = %p\n", mci->nr_csrows, mci->csrows); debugf3("\tdev = %p\n", mci->dev); - debugf3("\tmod_name:ctl_name = %s:%s\n", - mci->mod_name, mci->ctl_name); + debugf3("\tmod_name:ctl_name = %s:%s\n", mci->mod_name, mci->ctl_name); debugf3("\tpvt_info = %p\n\n", mci->pvt_info); } -EXPORT_SYMBOL_GPL(edac_mc_dump_mci); -#endif /* CONFIG_EDAC_DEBUG */ +#endif /* CONFIG_EDAC_DEBUG */ /* 'ptr' points to a possibly unaligned item X such that sizeof(X) is 'size'. * Adjust 'ptr' so that its alignment is at least as stringent as what the @@ -1271,7 +85,7 @@ EXPORT_SYMBOL_GPL(edac_mc_dump_mci); * If 'size' is a constant, the compiler will optimize this whole function * down to either a no-op or the addition of a constant to the value of 'ptr'. */ -static inline char * align_ptr(void *ptr, unsigned size) +void *edac_align_ptr(void *ptr, unsigned size) { unsigned align, r; @@ -1288,14 +102,14 @@ static inline char * align_ptr(void *ptr, unsigned size) else if (size > sizeof(char)) align = sizeof(short); else - return (char *) ptr; + return (char *)ptr; r = size % align; if (r == 0) - return (char *) ptr; + return (char *)ptr; - return (char *) (((unsigned long) ptr) + align - r); + return (void *)(((unsigned long)ptr) + align - r); } /** @@ -1315,7 +129,7 @@ static inline char * align_ptr(void *ptr, unsigned size) * struct mem_ctl_info pointer */ struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows, - unsigned nr_chans) + unsigned nr_chans, int edac_index) { struct mem_ctl_info *mci; struct csrow_info *csi, *csrow; @@ -1323,30 +137,32 @@ struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows, void *pvt; unsigned size; int row, chn; + int err; /* Figure out the offsets of the various items from the start of an mc * structure. We want the alignment of each item to be at least as * stringent as what the compiler would provide if we could simply * hardcode everything into a single struct. */ - mci = (struct mem_ctl_info *) 0; - csi = (struct csrow_info *)align_ptr(&mci[1], sizeof(*csi)); - chi = (struct channel_info *) - align_ptr(&csi[nr_csrows], sizeof(*chi)); - pvt = align_ptr(&chi[nr_chans * nr_csrows], sz_pvt); - size = ((unsigned long) pvt) + sz_pvt; - - if ((mci = kmalloc(size, GFP_KERNEL)) == NULL) + mci = (struct mem_ctl_info *)0; + csi = edac_align_ptr(&mci[1], sizeof(*csi)); + chi = edac_align_ptr(&csi[nr_csrows], sizeof(*chi)); + pvt = edac_align_ptr(&chi[nr_chans * nr_csrows], sz_pvt); + size = ((unsigned long)pvt) + sz_pvt; + + mci = kzalloc(size, GFP_KERNEL); + if (mci == NULL) return NULL; /* Adjust pointers so they point within the memory we just allocated * rather than an imaginary chunk of memory located at address 0. */ - csi = (struct csrow_info *) (((char *) mci) + ((unsigned long) csi)); - chi = (struct channel_info *) (((char *) mci) + ((unsigned long) chi)); - pvt = sz_pvt ? (((char *) mci) + ((unsigned long) pvt)) : NULL; + csi = (struct csrow_info *)(((char *)mci) + ((unsigned long)csi)); + chi = (struct channel_info *)(((char *)mci) + ((unsigned long)chi)); + pvt = sz_pvt ? (((char *)mci) + ((unsigned long)pvt)) : NULL; - memset(mci, 0, size); /* clear all fields */ + /* setup index and various internal pointers */ + mci->mc_idx = edac_index; mci->csrows = csi; mci->pvt_info = pvt; mci->nr_csrows = nr_csrows; @@ -1366,17 +182,35 @@ struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows, } } + mci->op_state = OP_ALLOC; + + /* + * Initialize the 'root' kobj for the edac_mc controller + */ + err = edac_mc_register_sysfs_main_kobj(mci); + if (err) { + kfree(mci); + return NULL; + } + + /* at this point, the root kobj is valid, and in order to + * 'free' the object, then the function: + * edac_mc_unregister_sysfs_main_kobj() must be called + * which will perform kobj unregistration and the actual free + * will occur during the kobject callback operation + */ return mci; } EXPORT_SYMBOL_GPL(edac_mc_alloc); /** - * edac_mc_free: Free a previously allocated 'mci' structure + * edac_mc_free + * 'Free' a previously allocated 'mci' structure * @mci: pointer to a struct mem_ctl_info structure */ void edac_mc_free(struct mem_ctl_info *mci) { - kfree(mci); + edac_mc_unregister_sysfs_main_kobj(mci); } EXPORT_SYMBOL_GPL(edac_mc_free); @@ -1397,18 +231,136 @@ static struct mem_ctl_info *find_mci_by_dev(struct device *dev) return NULL; } +/* + * handler for EDAC to check if NMI type handler has asserted interrupt + */ +static int edac_mc_assert_error_check_and_clear(void) +{ + int old_state; + + if (edac_op_state == EDAC_OPSTATE_POLL) + return 1; + + old_state = edac_err_assert; + edac_err_assert = 0; + + return old_state; +} + +/* + * edac_mc_workq_function + * performs the operation scheduled by a workq request + */ +static void edac_mc_workq_function(struct work_struct *work_req) +{ + struct delayed_work *d_work = (struct delayed_work *)work_req; + struct mem_ctl_info *mci = to_edac_mem_ctl_work(d_work); + + mutex_lock(&mem_ctls_mutex); + + /* if this control struct has movd to offline state, we are done */ + if (mci->op_state == OP_OFFLINE) { + mutex_unlock(&mem_ctls_mutex); + return; + } + + /* Only poll controllers that are running polled and have a check */ + if (edac_mc_assert_error_check_and_clear() && (mci->edac_check != NULL)) + mci->edac_check(mci); + + /* + * FIXME: temp place holder for PCI checks, + * goes away when we break out PCI + */ + edac_pci_do_parity_check(); + + mutex_unlock(&mem_ctls_mutex); + + /* Reschedule */ + queue_delayed_work(edac_workqueue, &mci->work, + msecs_to_jiffies(edac_mc_get_poll_msec())); +} + +/* + * edac_mc_workq_setup + * initialize a workq item for this mci + * passing in the new delay period in msec + * + * locking model: + * + * called with the mem_ctls_mutex held + */ +static void edac_mc_workq_setup(struct mem_ctl_info *mci, unsigned msec) +{ + debugf0("%s()\n", __func__); + + /* if this instance is not in the POLL state, then simply return */ + if (mci->op_state != OP_RUNNING_POLL) + return; + + INIT_DELAYED_WORK(&mci->work, edac_mc_workq_function); + queue_delayed_work(edac_workqueue, &mci->work, msecs_to_jiffies(msec)); +} + +/* + * edac_mc_workq_teardown + * stop the workq processing on this mci + * + * locking model: + * + * called WITHOUT lock held + */ +static void edac_mc_workq_teardown(struct mem_ctl_info *mci) +{ + int status; + + /* if not running POLL, leave now */ + if (mci->op_state == OP_RUNNING_POLL) { + status = cancel_delayed_work(&mci->work); + if (status == 0) { + debugf0("%s() not canceled, flush the queue\n", + __func__); + + /* workq instance might be running, wait for it */ + flush_workqueue(edac_workqueue); + } + } +} + +/* + * edac_reset_delay_period + */ +static void edac_reset_delay_period(struct mem_ctl_info *mci, unsigned long value) +{ + /* cancel the current workq request */ + edac_mc_workq_teardown(mci); + + /* lock the list of devices for the new setup */ + mutex_lock(&mem_ctls_mutex); + + /* restart the workq request, with new delay value */ + edac_mc_workq_setup(mci, value); + + mutex_unlock(&mem_ctls_mutex); +} + /* Return 0 on success, 1 on failure. * Before calling this function, caller must * assign a unique value to mci->mc_idx. + * + * locking model: + * + * called with the mem_ctls_mutex lock held */ -static int add_mc_to_global_list (struct mem_ctl_info *mci) +static int add_mc_to_global_list(struct mem_ctl_info *mci) { struct list_head *item, *insert_before; struct mem_ctl_info *p; insert_before = &mc_devices; - if (unlikely((p = find_mci_by_dev(mci->dev)) != NULL)) + p = find_mci_by_dev(mci->dev); + if (unlikely(p != NULL)) goto fail0; list_for_each(item, &mc_devices) { @@ -1424,18 +376,19 @@ static int add_mc_to_global_list (struct mem_ctl_info *mci) } list_add_tail_rcu(&mci->link, insert_before); + atomic_inc(&edac_handlers); return 0; fail0: edac_printk(KERN_WARNING, EDAC_MC, - "%s (%s) %s %s already assigned %d\n", p->dev->bus_id, - dev_name(p->dev), p->mod_name, p->ctl_name, p->mc_idx); + "%s (%s) %s %s already assigned %d\n", p->dev->bus_id, + dev_name(mci), p->mod_name, p->ctl_name, p->mc_idx); return 1; fail1: edac_printk(KERN_WARNING, EDAC_MC, - "bug in low-level driver: attempt to assign\n" - " duplicate mc_idx %d in %s()\n", p->mc_idx, __func__); + "bug in low-level driver: attempt to assign\n" + " duplicate mc_idx %d in %s()\n", p->mc_idx, __func__); return 1; } @@ -1450,6 +403,7 @@ static void complete_mc_list_del(struct rcu_head *head) static void del_mc_from_global_list(struct mem_ctl_info *mci) { + atomic_dec(&edac_handlers); list_del_rcu(&mci->link); init_completion(&mci->complete); call_rcu(&mci->rcu, complete_mc_list_del); @@ -1457,6 +411,34 @@ static void del_mc_from_global_list(struct mem_ctl_info *mci) } /** + * edac_mc_find: Search for a mem_ctl_info structure whose index is 'idx'. + * + * If found, return a pointer to the structure. + * Else return NULL. + * + * Caller must hold mem_ctls_mutex. + */ +struct mem_ctl_info *edac_mc_find(int idx) +{ + struct list_head *item; + struct mem_ctl_info *mci; + + list_for_each(item, &mc_devices) { + mci = list_entry(item, struct mem_ctl_info, link); + + if (mci->mc_idx >= idx) { + if (mci->mc_idx == idx) + return mci; + + break; + } + } + + return NULL; +} +EXPORT_SYMBOL(edac_mc_find); + +/** * edac_mc_add_mc: Insert the 'mci' structure into the mci global list and * create sysfs entries associated with mci structure * @mci: pointer to the mci structure to be added to the list @@ -1468,10 +450,10 @@ static void del_mc_from_global_list(struct mem_ctl_info *mci) */ /* FIXME - should a warning be printed if no error detection? correction? */ -int edac_mc_add_mc(struct mem_ctl_info *mci, int mc_idx) +int edac_mc_add_mc(struct mem_ctl_info *mci) { debugf0("%s()\n", __func__); - mci->mc_idx = mc_idx; + #ifdef CONFIG_EDAC_DEBUG if (edac_debug_level >= 3) edac_mc_dump_mci(mci); @@ -1484,12 +466,12 @@ int edac_mc_add_mc(struct mem_ctl_info *mci, int mc_idx) edac_mc_dump_csrow(&mci->csrows[i]); for (j = 0; j < mci->csrows[i].nr_channels; j++) - edac_mc_dump_channel( - &mci->csrows[i].channels[j]); + edac_mc_dump_channel(&mci->csrows[i]. + channels[j]); } } #endif - down(&mem_ctls_mutex); + mutex_lock(&mem_ctls_mutex); if (add_mc_to_global_list(mci)) goto fail0; @@ -1503,18 +485,28 @@ int edac_mc_add_mc(struct mem_ctl_info *mci, int mc_idx) goto fail1; } + /* If there IS a check routine, then we are running POLLED */ + if (mci->edac_check != NULL) { + /* This instance is NOW RUNNING */ + mci->op_state = OP_RUNNING_POLL; + + edac_mc_workq_setup(mci, edac_mc_get_poll_msec()); + } else { + mci->op_state = OP_RUNNING_INTERRUPT; + } + /* Report action taken */ - edac_mc_printk(mci, KERN_INFO, "Giving out device to %s %s: DEV %s\n", - mci->mod_name, mci->ctl_name, dev_name(mci->dev)); + edac_mc_printk(mci, KERN_INFO, "Giving out device to '%s' '%s':" + " DEV %s\n", mci->mod_name, mci->ctl_name, dev_name(mci)); - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); return 0; fail1: del_mc_from_global_list(mci); fail0: - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); return 1; } EXPORT_SYMBOL_GPL(edac_mc_add_mc); @@ -1526,29 +518,41 @@ EXPORT_SYMBOL_GPL(edac_mc_add_mc); * * Return pointer to removed mci structure, or NULL if device not found. */ -struct mem_ctl_info * edac_mc_del_mc(struct device *dev) +struct mem_ctl_info *edac_mc_del_mc(struct device *dev) { struct mem_ctl_info *mci; - debugf0("MC: %s()\n", __func__); - down(&mem_ctls_mutex); + debugf0("%s()\n", __func__); + + mutex_lock(&mem_ctls_mutex); - if ((mci = find_mci_by_dev(dev)) == NULL) { - up(&mem_ctls_mutex); + /* find the requested mci struct in the global list */ + mci = find_mci_by_dev(dev); + if (mci == NULL) { + mutex_unlock(&mem_ctls_mutex); return NULL; } - edac_remove_sysfs_mci_device(mci); + /* marking MCI offline */ + mci->op_state = OP_OFFLINE; + del_mc_from_global_list(mci); - up(&mem_ctls_mutex); + mutex_unlock(&mem_ctls_mutex); + + /* flush workq processes and remove sysfs */ + edac_mc_workq_teardown(mci); + edac_remove_sysfs_mci_device(mci); + edac_printk(KERN_INFO, EDAC_MC, "Removed device %d for %s %s: DEV %s\n", mci->mc_idx, - mci->mod_name, mci->ctl_name, dev_name(mci->dev)); + mci->mod_name, mci->ctl_name, dev_name(mci)); + return mci; } EXPORT_SYMBOL_GPL(edac_mc_del_mc); -void edac_mc_scrub_block(unsigned long page, unsigned long offset, u32 size) +static void edac_mc_scrub_block(unsigned long page, unsigned long offset, + u32 size) { struct page *pg; void *virt_addr; @@ -1557,7 +561,7 @@ void edac_mc_scrub_block(unsigned long page, unsigned long offset, u32 size) debugf3("%s()\n", __func__); /* ECC error page was not in our memory. Ignore it. */ - if(!pfn_valid(page)) + if (!pfn_valid(page)) return; /* Find the actual page structure then map it and fix */ @@ -1577,7 +581,6 @@ void edac_mc_scrub_block(unsigned long page, unsigned long offset, u32 size) if (PageHighMem(pg)) local_irq_restore(flags); } -EXPORT_SYMBOL_GPL(edac_mc_scrub_block); /* FIXME - should return -1 */ int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci, unsigned long page) @@ -1611,7 +614,7 @@ int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci, unsigned long page) if (row == -1) edac_mc_printk(mci, KERN_ERR, "could not look up page error address %lx\n", - (unsigned long) page); + (unsigned long)page); return row; } @@ -1620,8 +623,9 @@ EXPORT_SYMBOL_GPL(edac_mc_find_csrow_by_page); /* FIXME - setable log (warning/emerg) levels */ /* FIXME - integrate with evlog: http://evlog.sourceforge.net/ */ void edac_mc_handle_ce(struct mem_ctl_info *mci, - unsigned long page_frame_number, unsigned long offset_in_page, - unsigned long syndrome, int row, int channel, const char *msg) + unsigned long page_frame_number, + unsigned long offset_in_page, unsigned long syndrome, + int row, int channel, const char *msg) { unsigned long remapped_page; @@ -1647,7 +651,7 @@ void edac_mc_handle_ce(struct mem_ctl_info *mci, return; } - if (log_ce) + if (edac_mc_get_log_ce()) /* FIXME - put in DIMM location */ edac_mc_printk(mci, KERN_WARNING, "CE page 0x%lx, offset 0x%lx, grain %d, syndrome " @@ -1671,18 +675,18 @@ void edac_mc_handle_ce(struct mem_ctl_info *mci, * page - which can then be scrubbed. */ remapped_page = mci->ctl_page_to_phys ? - mci->ctl_page_to_phys(mci, page_frame_number) : - page_frame_number; + mci->ctl_page_to_phys(mci, page_frame_number) : + page_frame_number; edac_mc_scrub_block(remapped_page, offset_in_page, - mci->csrows[row].grain); + mci->csrows[row].grain); } } EXPORT_SYMBOL_GPL(edac_mc_handle_ce); void edac_mc_handle_ce_no_info(struct mem_ctl_info *mci, const char *msg) { - if (log_ce) + if (edac_mc_get_log_ce()) edac_mc_printk(mci, KERN_WARNING, "CE - no information available: %s\n", msg); @@ -1692,8 +696,8 @@ void edac_mc_handle_ce_no_info(struct mem_ctl_info *mci, const char *msg) EXPORT_SYMBOL_GPL(edac_mc_handle_ce_no_info); void edac_mc_handle_ue(struct mem_ctl_info *mci, - unsigned long page_frame_number, unsigned long offset_in_page, - int row, const char *msg) + unsigned long page_frame_number, + unsigned long offset_in_page, int row, const char *msg) { int len = EDAC_MC_LABEL_LEN * 4; char labels[len + 1]; @@ -1714,26 +718,26 @@ void edac_mc_handle_ue(struct mem_ctl_info *mci, } chars = snprintf(pos, len + 1, "%s", - mci->csrows[row].channels[0].label); + mci->csrows[row].channels[0].label); len -= chars; pos += chars; for (chan = 1; (chan < mci->csrows[row].nr_channels) && (len > 0); - chan++) { + chan++) { chars = snprintf(pos, len + 1, ":%s", - mci->csrows[row].channels[chan].label); + mci->csrows[row].channels[chan].label); len -= chars; pos += chars; } - if (log_ue) + if (edac_mc_get_log_ue()) edac_mc_printk(mci, KERN_EMERG, "UE page 0x%lx, offset 0x%lx, grain %d, row %d, " "labels \"%s\": %s\n", page_frame_number, - offset_in_page, mci->csrows[row].grain, row, labels, - msg); + offset_in_page, mci->csrows[row].grain, row, + labels, msg); - if (panic_on_ue) + if (edac_mc_get_panic_on_ue()) panic("EDAC MC%d: UE page 0x%lx, offset 0x%lx, grain %d, " "row %d, labels \"%s\": %s\n", mci->mc_idx, page_frame_number, offset_in_page, @@ -1746,10 +750,10 @@ EXPORT_SYMBOL_GPL(edac_mc_handle_ue); void edac_mc_handle_ue_no_info(struct mem_ctl_info *mci, const char *msg) { - if (panic_on_ue) + if (edac_mc_get_panic_on_ue()) panic("EDAC MC%d: Uncorrected Error", mci->mc_idx); - if (log_ue) + if (edac_mc_get_log_ue()) edac_mc_printk(mci, KERN_WARNING, "UE - no information available: %s\n", msg); mci->ue_noinfo_count++; @@ -1757,16 +761,14 @@ void edac_mc_handle_ue_no_info(struct mem_ctl_info *mci, const char *msg) } EXPORT_SYMBOL_GPL(edac_mc_handle_ue_no_info); - /************************************************************* * On Fully Buffered DIMM modules, this help function is * called to process UE events */ void edac_mc_handle_fbd_ue(struct mem_ctl_info *mci, - unsigned int csrow, - unsigned int channela, - unsigned int channelb, - char *msg) + unsigned int csrow, + unsigned int channela, + unsigned int channelb, char *msg) { int len = EDAC_MC_LABEL_LEN * 4; char labels[len + 1]; @@ -1808,20 +810,21 @@ void edac_mc_handle_fbd_ue(struct mem_ctl_info *mci, /* Generate the DIMM labels from the specified channels */ chars = snprintf(pos, len + 1, "%s", mci->csrows[csrow].channels[channela].label); - len -= chars; pos += chars; + len -= chars; + pos += chars; chars = snprintf(pos, len + 1, "-%s", mci->csrows[csrow].channels[channelb].label); - if (log_ue) + if (edac_mc_get_log_ue()) edac_mc_printk(mci, KERN_EMERG, "UE row %d, channel-a= %d channel-b= %d " "labels \"%s\": %s\n", csrow, channela, channelb, labels, msg); - if (panic_on_ue) + if (edac_mc_get_panic_on_ue()) panic("UE row %d, channel-a= %d channel-b= %d " - "labels \"%s\": %s\n", csrow, channela, - channelb, labels, msg); + "labels \"%s\": %s\n", csrow, channela, + channelb, labels, msg); } EXPORT_SYMBOL(edac_mc_handle_fbd_ue); @@ -1830,9 +833,7 @@ EXPORT_SYMBOL(edac_mc_handle_fbd_ue); * called to process CE events */ void edac_mc_handle_fbd_ce(struct mem_ctl_info *mci, - unsigned int csrow, - unsigned int channel, - char *msg) + unsigned int csrow, unsigned int channel, char *msg) { /* Ensure boundary values */ @@ -1853,13 +854,12 @@ void edac_mc_handle_fbd_ce(struct mem_ctl_info *mci, return; } - if (log_ce) + if (edac_mc_get_log_ce()) /* FIXME - put in DIMM location */ edac_mc_printk(mci, KERN_WARNING, "CE row %d, channel %d, label \"%s\": %s\n", csrow, channel, - mci->csrows[csrow].channels[channel].label, - msg); + mci->csrows[csrow].channels[channel].label, msg); mci->ce_count++; mci->csrows[csrow].ce_count++; @@ -1867,17 +867,16 @@ void edac_mc_handle_fbd_ce(struct mem_ctl_info *mci, } EXPORT_SYMBOL(edac_mc_handle_fbd_ce); - /* * Iterate over all MC instances and check for ECC, et al, errors */ -static inline void check_mc_devices(void) +void edac_check_mc_devices(void) { struct list_head *item; struct mem_ctl_info *mci; debugf3("%s()\n", __func__); - down(&mem_ctls_mutex); + mutex_lock(&mem_ctls_mutex); list_for_each(item, &mc_devices) { mci = list_entry(item, struct mem_ctl_info, link); @@ -1886,119 +885,5 @@ static inline void check_mc_devices(void) mci->edac_check(mci); } - up(&mem_ctls_mutex); -} - -/* - * Check MC status every poll_msec. - * Check PCI status every poll_msec as well. - * - * This where the work gets done for edac. - * - * SMP safe, doesn't use NMI, and auto-rate-limits. - */ -static void do_edac_check(void) -{ - debugf3("%s()\n", __func__); - check_mc_devices(); - do_pci_parity_check(); -} - -static int edac_kernel_thread(void *arg) -{ - while (!kthread_should_stop()) { - do_edac_check(); - - /* goto sleep for the interval */ - schedule_timeout_interruptible((HZ * poll_msec) / 1000); - try_to_freeze(); - } - - return 0; + mutex_unlock(&mem_ctls_mutex); } - -/* - * edac_mc_init - * module initialization entry point - */ -static int __init edac_mc_init(void) -{ - edac_printk(KERN_INFO, EDAC_MC, EDAC_MC_VERSION "\n"); - - /* - * Harvest and clear any boot/initialization PCI parity errors - * - * FIXME: This only clears errors logged by devices present at time of - * module initialization. We should also do an initial clear - * of each newly hotplugged device. - */ - clear_pci_parity_errors(); - - /* Create the MC sysfs entries */ - if (edac_sysfs_memctrl_setup()) { - edac_printk(KERN_ERR, EDAC_MC, - "Error initializing sysfs code\n"); - return -ENODEV; - } - - /* Create the PCI parity sysfs entries */ - if (edac_sysfs_pci_setup()) { - edac_sysfs_memctrl_teardown(); - edac_printk(KERN_ERR, EDAC_MC, - "EDAC PCI: Error initializing sysfs code\n"); - return -ENODEV; - } - - /* create our kernel thread */ - edac_thread = kthread_run(edac_kernel_thread, NULL, "kedac"); - - if (IS_ERR(edac_thread)) { - /* remove the sysfs entries */ - edac_sysfs_memctrl_teardown(); - edac_sysfs_pci_teardown(); - return PTR_ERR(edac_thread); - } - - return 0; -} - -/* - * edac_mc_exit() - * module exit/termination functioni - */ -static void __exit edac_mc_exit(void) -{ - debugf0("%s()\n", __func__); - kthread_stop(edac_thread); - - /* tear down the sysfs device */ - edac_sysfs_memctrl_teardown(); - edac_sysfs_pci_teardown(); -} - -module_init(edac_mc_init); -module_exit(edac_mc_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh et al\n" - "Based on work by Dan Hollis et al"); -MODULE_DESCRIPTION("Core library routines for MC reporting"); - -module_param(panic_on_ue, int, 0644); -MODULE_PARM_DESC(panic_on_ue, "Panic on uncorrected error: 0=off 1=on"); -#ifdef CONFIG_PCI -module_param(check_pci_parity, int, 0644); -MODULE_PARM_DESC(check_pci_parity, "Check for PCI bus parity errors: 0=off 1=on"); -module_param(panic_on_pci_parity, int, 0644); -MODULE_PARM_DESC(panic_on_pci_parity, "Panic on PCI Bus Parity error: 0=off 1=on"); -#endif -module_param(log_ue, int, 0644); -MODULE_PARM_DESC(log_ue, "Log uncorrectable error to console: 0=off 1=on"); -module_param(log_ce, int, 0644); -MODULE_PARM_DESC(log_ce, "Log correctable error to console: 0=off 1=on"); -module_param(poll_msec, int, 0644); -MODULE_PARM_DESC(poll_msec, "Polling period in milliseconds"); -#ifdef CONFIG_EDAC_DEBUG -module_param(edac_debug_level, int, 0644); -MODULE_PARM_DESC(edac_debug_level, "Debug level"); -#endif diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c new file mode 100644 index 000000000000..cd090b0677a7 --- /dev/null +++ b/drivers/edac/edac_mc_sysfs.c @@ -0,0 +1,1024 @@ +/* + * edac_mc kernel module + * (C) 2005-2007 Linux Networx (http://lnxi.com) + * + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Written Doug Thompson <norsk5@xmission.com> www.softwarebitmaker.com + * + */ + +#include <linux/ctype.h> +#include <linux/bug.h> + +#include "edac_core.h" +#include "edac_module.h" + + +/* MC EDAC Controls, setable by module parameter, and sysfs */ +static int edac_mc_log_ue = 1; +static int edac_mc_log_ce = 1; +static int edac_mc_panic_on_ue; +static int edac_mc_poll_msec = 1000; + +/* Getter functions for above */ +int edac_mc_get_log_ue(void) +{ + return edac_mc_log_ue; +} + +int edac_mc_get_log_ce(void) +{ + return edac_mc_log_ce; +} + +int edac_mc_get_panic_on_ue(void) +{ + return edac_mc_panic_on_ue; +} + +/* this is temporary */ +int edac_mc_get_poll_msec(void) +{ + return edac_mc_poll_msec; +} + +/* Parameter declarations for above */ +module_param(edac_mc_panic_on_ue, int, 0644); +MODULE_PARM_DESC(edac_mc_panic_on_ue, "Panic on uncorrected error: 0=off 1=on"); +module_param(edac_mc_log_ue, int, 0644); +MODULE_PARM_DESC(edac_mc_log_ue, + "Log uncorrectable error to console: 0=off 1=on"); +module_param(edac_mc_log_ce, int, 0644); +MODULE_PARM_DESC(edac_mc_log_ce, + "Log correctable error to console: 0=off 1=on"); +module_param(edac_mc_poll_msec, int, 0644); +MODULE_PARM_DESC(edac_mc_poll_msec, "Polling period in milliseconds"); + +/* + * various constants for Memory Controllers + */ +static const char *mem_types[] = { + [MEM_EMPTY] = "Empty", + [MEM_RESERVED] = "Reserved", + [MEM_UNKNOWN] = "Unknown", + [MEM_FPM] = "FPM", + [MEM_EDO] = "EDO", + [MEM_BEDO] = "BEDO", + [MEM_SDR] = "Unbuffered-SDR", + [MEM_RDR] = "Registered-SDR", + [MEM_DDR] = "Unbuffered-DDR", + [MEM_RDDR] = "Registered-DDR", + [MEM_RMBS] = "RMBS", + [MEM_DDR2] = "Unbuffered-DDR2", + [MEM_FB_DDR2] = "FullyBuffered-DDR2", + [MEM_RDDR2] = "Registered-DDR2" +}; + +static const char *dev_types[] = { + [DEV_UNKNOWN] = "Unknown", + [DEV_X1] = "x1", + [DEV_X2] = "x2", + [DEV_X4] = "x4", + [DEV_X8] = "x8", + [DEV_X16] = "x16", + [DEV_X32] = "x32", + [DEV_X64] = "x64" +}; + +static const char *edac_caps[] = { + [EDAC_UNKNOWN] = "Unknown", + [EDAC_NONE] = "None", + [EDAC_RESERVED] = "Reserved", + [EDAC_PARITY] = "PARITY", + [EDAC_EC] = "EC", + [EDAC_SECDED] = "SECDED", + [EDAC_S2ECD2ED] = "S2ECD2ED", + [EDAC_S4ECD4ED] = "S4ECD4ED", + [EDAC_S8ECD8ED] = "S8ECD8ED", + [EDAC_S16ECD16ED] = "S16ECD16ED" +}; + + + +/* + * /sys/devices/system/edac/mc; + * data structures and methods + */ +static ssize_t memctrl_int_show(void *ptr, char *buffer) +{ + int *value = (int *)ptr; + return sprintf(buffer, "%u\n", *value); +} + +static ssize_t memctrl_int_store(void *ptr, const char *buffer, size_t count) +{ + int *value = (int *)ptr; + + if (isdigit(*buffer)) + *value = simple_strtoul(buffer, NULL, 0); + + return count; +} + + +/* EDAC sysfs CSROW data structures and methods + */ + +/* Set of more default csrow<id> attribute show/store functions */ +static ssize_t csrow_ue_count_show(struct csrow_info *csrow, char *data, + int private) +{ + return sprintf(data, "%u\n", csrow->ue_count); +} + +static ssize_t csrow_ce_count_show(struct csrow_info *csrow, char *data, + int private) +{ + return sprintf(data, "%u\n", csrow->ce_count); +} + +static ssize_t csrow_size_show(struct csrow_info *csrow, char *data, + int private) +{ + return sprintf(data, "%u\n", PAGES_TO_MiB(csrow->nr_pages)); +} + +static ssize_t csrow_mem_type_show(struct csrow_info *csrow, char *data, + int private) +{ + return sprintf(data, "%s\n", mem_types[csrow->mtype]); +} + +static ssize_t csrow_dev_type_show(struct csrow_info *csrow, char *data, + int private) +{ + return sprintf(data, "%s\n", dev_types[csrow->dtype]); +} + +static ssize_t csrow_edac_mode_show(struct csrow_info *csrow, char *data, + int private) +{ + return sprintf(data, "%s\n", edac_caps[csrow->edac_mode]); +} + +/* show/store functions for DIMM Label attributes */ +static ssize_t channel_dimm_label_show(struct csrow_info *csrow, + char *data, int channel) +{ + return snprintf(data, EDAC_MC_LABEL_LEN, "%s", + csrow->channels[channel].label); +} + +static ssize_t channel_dimm_label_store(struct csrow_info *csrow, + const char *data, + size_t count, int channel) +{ + ssize_t max_size = 0; + + max_size = min((ssize_t) count, (ssize_t) EDAC_MC_LABEL_LEN - 1); + strncpy(csrow->channels[channel].label, data, max_size); + csrow->channels[channel].label[max_size] = '\0'; + + return max_size; +} + +/* show function for dynamic chX_ce_count attribute */ +static ssize_t channel_ce_count_show(struct csrow_info *csrow, + char *data, int channel) +{ + return sprintf(data, "%u\n", csrow->channels[channel].ce_count); +} + +/* csrow specific attribute structure */ +struct csrowdev_attribute { + struct attribute attr; + ssize_t(*show) (struct csrow_info *, char *, int); + ssize_t(*store) (struct csrow_info *, const char *, size_t, int); + int private; +}; + +#define to_csrow(k) container_of(k, struct csrow_info, kobj) +#define to_csrowdev_attr(a) container_of(a, struct csrowdev_attribute, attr) + +/* Set of show/store higher level functions for default csrow attributes */ +static ssize_t csrowdev_show(struct kobject *kobj, + struct attribute *attr, char *buffer) +{ + struct csrow_info *csrow = to_csrow(kobj); + struct csrowdev_attribute *csrowdev_attr = to_csrowdev_attr(attr); + + if (csrowdev_attr->show) + return csrowdev_attr->show(csrow, + buffer, csrowdev_attr->private); + return -EIO; +} + +static ssize_t csrowdev_store(struct kobject *kobj, struct attribute *attr, + const char *buffer, size_t count) +{ + struct csrow_info *csrow = to_csrow(kobj); + struct csrowdev_attribute *csrowdev_attr = to_csrowdev_attr(attr); + + if (csrowdev_attr->store) + return csrowdev_attr->store(csrow, + buffer, + count, csrowdev_attr->private); + return -EIO; +} + +static struct sysfs_ops csrowfs_ops = { + .show = csrowdev_show, + .store = csrowdev_store +}; + +#define CSROWDEV_ATTR(_name,_mode,_show,_store,_private) \ +static struct csrowdev_attribute attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .show = _show, \ + .store = _store, \ + .private = _private, \ +}; + +/* default cwrow<id>/attribute files */ +CSROWDEV_ATTR(size_mb, S_IRUGO, csrow_size_show, NULL, 0); +CSROWDEV_ATTR(dev_type, S_IRUGO, csrow_dev_type_show, NULL, 0); +CSROWDEV_ATTR(mem_type, S_IRUGO, csrow_mem_type_show, NULL, 0); +CSROWDEV_ATTR(edac_mode, S_IRUGO, csrow_edac_mode_show, NULL, 0); +CSROWDEV_ATTR(ue_count, S_IRUGO, csrow_ue_count_show, NULL, 0); +CSROWDEV_ATTR(ce_count, S_IRUGO, csrow_ce_count_show, NULL, 0); + +/* default attributes of the CSROW<id> object */ +static struct csrowdev_attribute *default_csrow_attr[] = { + &attr_dev_type, + &attr_mem_type, + &attr_edac_mode, + &attr_size_mb, + &attr_ue_count, + &attr_ce_count, + NULL, +}; + +/* possible dynamic channel DIMM Label attribute files */ +CSROWDEV_ATTR(ch0_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 0); +CSROWDEV_ATTR(ch1_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 1); +CSROWDEV_ATTR(ch2_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 2); +CSROWDEV_ATTR(ch3_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 3); +CSROWDEV_ATTR(ch4_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 4); +CSROWDEV_ATTR(ch5_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 5); + +/* Total possible dynamic DIMM Label attribute file table */ +static struct csrowdev_attribute *dynamic_csrow_dimm_attr[] = { + &attr_ch0_dimm_label, + &attr_ch1_dimm_label, + &attr_ch2_dimm_label, + &attr_ch3_dimm_label, + &attr_ch4_dimm_label, + &attr_ch5_dimm_label +}; + +/* possible dynamic channel ce_count attribute files */ +CSROWDEV_ATTR(ch0_ce_count, S_IRUGO | S_IWUSR, channel_ce_count_show, NULL, 0); +CSROWDEV_ATTR(ch1_ce_count, S_IRUGO | S_IWUSR, channel_ce_count_show, NULL, 1); +CSROWDEV_ATTR(ch2_ce_count, S_IRUGO | S_IWUSR, channel_ce_count_show, NULL, 2); +CSROWDEV_ATTR(ch3_ce_count, S_IRUGO | S_IWUSR, channel_ce_count_show, NULL, 3); +CSROWDEV_ATTR(ch4_ce_count, S_IRUGO | S_IWUSR, channel_ce_count_show, NULL, 4); +CSROWDEV_ATTR(ch5_ce_count, S_IRUGO | S_IWUSR, channel_ce_count_show, NULL, 5); + +/* Total possible dynamic ce_count attribute file table */ +static struct csrowdev_attribute *dynamic_csrow_ce_count_attr[] = { + &attr_ch0_ce_count, + &attr_ch1_ce_count, + &attr_ch2_ce_count, + &attr_ch3_ce_count, + &attr_ch4_ce_count, + &attr_ch5_ce_count +}; + +#define EDAC_NR_CHANNELS 6 + +/* Create dynamic CHANNEL files, indexed by 'chan', under specifed CSROW */ +static int edac_create_channel_files(struct kobject *kobj, int chan) +{ + int err = -ENODEV; + + if (chan >= EDAC_NR_CHANNELS) + return err; + + /* create the DIMM label attribute file */ + err = sysfs_create_file(kobj, + (struct attribute *) + dynamic_csrow_dimm_attr[chan]); + + if (!err) { + /* create the CE Count attribute file */ + err = sysfs_create_file(kobj, + (struct attribute *) + dynamic_csrow_ce_count_attr[chan]); + } else { + debugf1("%s() dimm labels and ce_count files created", + __func__); + } + + return err; +} + +/* No memory to release for this kobj */ +static void edac_csrow_instance_release(struct kobject *kobj) +{ + struct mem_ctl_info *mci; + struct csrow_info *cs; + + debugf1("%s()\n", __func__); + + cs = container_of(kobj, struct csrow_info, kobj); + mci = cs->mci; + + kobject_put(&mci->edac_mci_kobj); +} + +/* the kobj_type instance for a CSROW */ +static struct kobj_type ktype_csrow = { + .release = edac_csrow_instance_release, + .sysfs_ops = &csrowfs_ops, + .default_attrs = (struct attribute **)default_csrow_attr, +}; + +/* Create a CSROW object under specifed edac_mc_device */ +static int edac_create_csrow_object(struct mem_ctl_info *mci, + struct csrow_info *csrow, int index) +{ + struct kobject *kobj_mci = &mci->edac_mci_kobj; + struct kobject *kobj; + int chan; + int err; + + /* generate ..../edac/mc/mc<id>/csrow<index> */ + memset(&csrow->kobj, 0, sizeof(csrow->kobj)); + csrow->mci = mci; /* include container up link */ + csrow->kobj.parent = kobj_mci; + csrow->kobj.ktype = &ktype_csrow; + + /* name this instance of csrow<id> */ + err = kobject_set_name(&csrow->kobj, "csrow%d", index); + if (err) + goto err_out; + + /* bump the mci instance's kobject's ref count */ + kobj = kobject_get(&mci->edac_mci_kobj); + if (!kobj) { + err = -ENODEV; + goto err_out; + } + + /* Instanstiate the csrow object */ + err = kobject_register(&csrow->kobj); + if (err) + goto err_release_top_kobj; + + /* At this point, to release a csrow kobj, one must + * call the kobject_unregister and allow that tear down + * to work the releasing + */ + + /* Create the dyanmic attribute files on this csrow, + * namely, the DIMM labels and the channel ce_count + */ + for (chan = 0; chan < csrow->nr_channels; chan++) { + err = edac_create_channel_files(&csrow->kobj, chan); + if (err) { + /* special case the unregister here */ + kobject_unregister(&csrow->kobj); + goto err_out; + } + } + + return 0; + + /* error unwind stack */ +err_release_top_kobj: + kobject_put(&mci->edac_mci_kobj); + +err_out: + return err; +} + +/* default sysfs methods and data structures for the main MCI kobject */ + +static ssize_t mci_reset_counters_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + int row, chan; + + mci->ue_noinfo_count = 0; + mci->ce_noinfo_count = 0; + mci->ue_count = 0; + mci->ce_count = 0; + + for (row = 0; row < mci->nr_csrows; row++) { + struct csrow_info *ri = &mci->csrows[row]; + + ri->ue_count = 0; + ri->ce_count = 0; + + for (chan = 0; chan < ri->nr_channels; chan++) + ri->channels[chan].ce_count = 0; + } + + mci->start_time = jiffies; + return count; +} + +/* memory scrubbing */ +static ssize_t mci_sdram_scrub_rate_store(struct mem_ctl_info *mci, + const char *data, size_t count) +{ + u32 bandwidth = -1; + + if (mci->set_sdram_scrub_rate) { + + memctrl_int_store(&bandwidth, data, count); + + if (!(*mci->set_sdram_scrub_rate) (mci, &bandwidth)) { + edac_printk(KERN_DEBUG, EDAC_MC, + "Scrub rate set successfully, applied: %d\n", + bandwidth); + } else { + /* FIXME: error codes maybe? */ + edac_printk(KERN_DEBUG, EDAC_MC, + "Scrub rate set FAILED, could not apply: %d\n", + bandwidth); + } + } else { + /* FIXME: produce "not implemented" ERROR for user-side. */ + edac_printk(KERN_WARNING, EDAC_MC, + "Memory scrubbing 'set'control is not implemented!\n"); + } + return count; +} + +static ssize_t mci_sdram_scrub_rate_show(struct mem_ctl_info *mci, char *data) +{ + u32 bandwidth = -1; + + if (mci->get_sdram_scrub_rate) { + if (!(*mci->get_sdram_scrub_rate) (mci, &bandwidth)) { + edac_printk(KERN_DEBUG, EDAC_MC, + "Scrub rate successfully, fetched: %d\n", + bandwidth); + } else { + /* FIXME: error codes maybe? */ + edac_printk(KERN_DEBUG, EDAC_MC, + "Scrub rate fetch FAILED, got: %d\n", + bandwidth); + } + } else { + /* FIXME: produce "not implemented" ERROR for user-side. */ + edac_printk(KERN_WARNING, EDAC_MC, + "Memory scrubbing 'get' control is not implemented\n"); + } + return sprintf(data, "%d\n", bandwidth); +} + +/* default attribute files for the MCI object */ +static ssize_t mci_ue_count_show(struct mem_ctl_info *mci, char *data) +{ + return sprintf(data, "%d\n", mci->ue_count); +} + +static ssize_t mci_ce_count_show(struct mem_ctl_info *mci, char *data) +{ + return sprintf(data, "%d\n", mci->ce_count); +} + +static ssize_t mci_ce_noinfo_show(struct mem_ctl_info *mci, char *data) +{ + return sprintf(data, "%d\n", mci->ce_noinfo_count); +} + +static ssize_t mci_ue_noinfo_show(struct mem_ctl_info *mci, char *data) +{ + return sprintf(data, "%d\n", mci->ue_noinfo_count); +} + +static ssize_t mci_seconds_show(struct mem_ctl_info *mci, char *data) +{ + return sprintf(data, "%ld\n", (jiffies - mci->start_time) / HZ); +} + +static ssize_t mci_ctl_name_show(struct mem_ctl_info *mci, char *data) +{ + return sprintf(data, "%s\n", mci->ctl_name); +} + +static ssize_t mci_size_mb_show(struct mem_ctl_info *mci, char *data) +{ + int total_pages, csrow_idx; + + for (total_pages = csrow_idx = 0; csrow_idx < mci->nr_csrows; + csrow_idx++) { + struct csrow_info *csrow = &mci->csrows[csrow_idx]; + + if (!csrow->nr_pages) + continue; + + total_pages += csrow->nr_pages; + } + + return sprintf(data, "%u\n", PAGES_TO_MiB(total_pages)); +} + +#define to_mci(k) container_of(k, struct mem_ctl_info, edac_mci_kobj) +#define to_mcidev_attr(a) container_of(a,struct mcidev_sysfs_attribute,attr) + +/* MCI show/store functions for top most object */ +static ssize_t mcidev_show(struct kobject *kobj, struct attribute *attr, + char *buffer) +{ + struct mem_ctl_info *mem_ctl_info = to_mci(kobj); + struct mcidev_sysfs_attribute *mcidev_attr = to_mcidev_attr(attr); + + if (mcidev_attr->show) + return mcidev_attr->show(mem_ctl_info, buffer); + + return -EIO; +} + +static ssize_t mcidev_store(struct kobject *kobj, struct attribute *attr, + const char *buffer, size_t count) +{ + struct mem_ctl_info *mem_ctl_info = to_mci(kobj); + struct mcidev_sysfs_attribute *mcidev_attr = to_mcidev_attr(attr); + + if (mcidev_attr->store) + return mcidev_attr->store(mem_ctl_info, buffer, count); + + return -EIO; +} + +/* Intermediate show/store table */ +static struct sysfs_ops mci_ops = { + .show = mcidev_show, + .store = mcidev_store +}; + +#define MCIDEV_ATTR(_name,_mode,_show,_store) \ +static struct mcidev_sysfs_attribute mci_attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .show = _show, \ + .store = _store, \ +}; + +/* default Control file */ +MCIDEV_ATTR(reset_counters, S_IWUSR, NULL, mci_reset_counters_store); + +/* default Attribute files */ +MCIDEV_ATTR(mc_name, S_IRUGO, mci_ctl_name_show, NULL); +MCIDEV_ATTR(size_mb, S_IRUGO, mci_size_mb_show, NULL); +MCIDEV_ATTR(seconds_since_reset, S_IRUGO, mci_seconds_show, NULL); +MCIDEV_ATTR(ue_noinfo_count, S_IRUGO, mci_ue_noinfo_show, NULL); +MCIDEV_ATTR(ce_noinfo_count, S_IRUGO, mci_ce_noinfo_show, NULL); +MCIDEV_ATTR(ue_count, S_IRUGO, mci_ue_count_show, NULL); +MCIDEV_ATTR(ce_count, S_IRUGO, mci_ce_count_show, NULL); + +/* memory scrubber attribute file */ +MCIDEV_ATTR(sdram_scrub_rate, S_IRUGO | S_IWUSR, mci_sdram_scrub_rate_show, + mci_sdram_scrub_rate_store); + +static struct mcidev_sysfs_attribute *mci_attr[] = { + &mci_attr_reset_counters, + &mci_attr_mc_name, + &mci_attr_size_mb, + &mci_attr_seconds_since_reset, + &mci_attr_ue_noinfo_count, + &mci_attr_ce_noinfo_count, + &mci_attr_ue_count, + &mci_attr_ce_count, + &mci_attr_sdram_scrub_rate, + NULL +}; + + +/* + * Release of a MC controlling instance + * + * each MC control instance has the following resources upon entry: + * a) a ref count on the top memctl kobj + * b) a ref count on this module + * + * this function must decrement those ref counts and then + * issue a free on the instance's memory + */ +static void edac_mci_control_release(struct kobject *kobj) +{ + struct mem_ctl_info *mci; + + mci = to_mci(kobj); + + debugf0("%s() mci instance idx=%d releasing\n", __func__, mci->mc_idx); + + /* decrement the module ref count */ + module_put(mci->owner); + + /* free the mci instance memory here */ + kfree(mci); +} + +static struct kobj_type ktype_mci = { + .release = edac_mci_control_release, + .sysfs_ops = &mci_ops, + .default_attrs = (struct attribute **)mci_attr, +}; + +/* show/store, tables, etc for the MC kset */ + + +struct memctrl_dev_attribute { + struct attribute attr; + void *value; + ssize_t(*show) (void *, char *); + ssize_t(*store) (void *, const char *, size_t); +}; + +/* Set of show/store abstract level functions for memory control object */ +static ssize_t memctrl_dev_show(struct kobject *kobj, + struct attribute *attr, char *buffer) +{ + struct memctrl_dev_attribute *memctrl_dev; + memctrl_dev = (struct memctrl_dev_attribute *)attr; + + if (memctrl_dev->show) + return memctrl_dev->show(memctrl_dev->value, buffer); + + return -EIO; +} + +static ssize_t memctrl_dev_store(struct kobject *kobj, struct attribute *attr, + const char *buffer, size_t count) +{ + struct memctrl_dev_attribute *memctrl_dev; + memctrl_dev = (struct memctrl_dev_attribute *)attr; + + if (memctrl_dev->store) + return memctrl_dev->store(memctrl_dev->value, buffer, count); + + return -EIO; +} + +static struct sysfs_ops memctrlfs_ops = { + .show = memctrl_dev_show, + .store = memctrl_dev_store +}; + +#define MEMCTRL_ATTR(_name, _mode, _show, _store) \ +static struct memctrl_dev_attribute attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .value = &_name, \ + .show = _show, \ + .store = _store, \ +}; + +#define MEMCTRL_STRING_ATTR(_name, _data, _mode, _show, _store) \ +static struct memctrl_dev_attribute attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .value = _data, \ + .show = _show, \ + .store = _store, \ +}; + +/* csrow<id> control files */ +MEMCTRL_ATTR(edac_mc_panic_on_ue, + S_IRUGO | S_IWUSR, memctrl_int_show, memctrl_int_store); + +MEMCTRL_ATTR(edac_mc_log_ue, + S_IRUGO | S_IWUSR, memctrl_int_show, memctrl_int_store); + +MEMCTRL_ATTR(edac_mc_log_ce, + S_IRUGO | S_IWUSR, memctrl_int_show, memctrl_int_store); + +MEMCTRL_ATTR(edac_mc_poll_msec, + S_IRUGO | S_IWUSR, memctrl_int_show, memctrl_int_store); + +/* Base Attributes of the memory ECC object */ +static struct memctrl_dev_attribute *memctrl_attr[] = { + &attr_edac_mc_panic_on_ue, + &attr_edac_mc_log_ue, + &attr_edac_mc_log_ce, + &attr_edac_mc_poll_msec, + NULL, +}; + + +/* the ktype for the mc_kset internal kobj */ +static struct kobj_type ktype_mc_set_attribs = { + .sysfs_ops = &memctrlfs_ops, + .default_attrs = (struct attribute **)memctrl_attr, +}; + +/* EDAC memory controller sysfs kset: + * /sys/devices/system/edac/mc + */ +static struct kset mc_kset = { + .kobj = {.name = "mc", .ktype = &ktype_mc_set_attribs }, + .ktype = &ktype_mci, +}; + + +/* + * edac_mc_register_sysfs_main_kobj + * + * setups and registers the main kobject for each mci + */ +int edac_mc_register_sysfs_main_kobj(struct mem_ctl_info *mci) +{ + struct kobject *kobj_mci; + int err; + + debugf1("%s()\n", __func__); + + kobj_mci = &mci->edac_mci_kobj; + + /* Init the mci's kobject */ + memset(kobj_mci, 0, sizeof(*kobj_mci)); + + /* this instance become part of the mc_kset */ + kobj_mci->kset = &mc_kset; + + /* set the name of the mc<id> object */ + err = kobject_set_name(kobj_mci, "mc%d", mci->mc_idx); + if (err) + goto fail_out; + + /* Record which module 'owns' this control structure + * and bump the ref count of the module + */ + mci->owner = THIS_MODULE; + + /* bump ref count on this module */ + if (!try_module_get(mci->owner)) { + err = -ENODEV; + goto fail_out; + } + + /* register the mc<id> kobject to the mc_kset */ + err = kobject_register(kobj_mci); + if (err) { + debugf1("%s()Failed to register '.../edac/mc%d'\n", + __func__, mci->mc_idx); + goto kobj_reg_fail; + } + + /* At this point, to 'free' the control struct, + * edac_mc_unregister_sysfs_main_kobj() must be used + */ + + debugf1("%s() Registered '.../edac/mc%d' kobject\n", + __func__, mci->mc_idx); + + return 0; + + /* Error exit stack */ + +kobj_reg_fail: + module_put(mci->owner); + +fail_out: + return err; +} + +/* + * edac_mc_register_sysfs_main_kobj + * + * tears down and the main mci kobject from the mc_kset + */ +void edac_mc_unregister_sysfs_main_kobj(struct mem_ctl_info *mci) +{ + /* delete the kobj from the mc_kset */ + kobject_unregister(&mci->edac_mci_kobj); +} + +#define EDAC_DEVICE_SYMLINK "device" + +/* + * edac_create_mci_instance_attributes + * create MC driver specific attributes at the topmost level + * directory of this mci instance. + */ +static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci) +{ + int err; + struct mcidev_sysfs_attribute *sysfs_attrib; + + /* point to the start of the array and iterate over it + * adding each attribute listed to this mci instance's kobject + */ + sysfs_attrib = mci->mc_driver_sysfs_attributes; + + while (sysfs_attrib && sysfs_attrib->attr.name) { + err = sysfs_create_file(&mci->edac_mci_kobj, + (struct attribute*) sysfs_attrib); + if (err) { + return err; + } + + sysfs_attrib++; + } + + return 0; +} + +/* + * edac_remove_mci_instance_attributes + * remove MC driver specific attributes at the topmost level + * directory of this mci instance. + */ +static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci) +{ + struct mcidev_sysfs_attribute *sysfs_attrib; + + /* point to the start of the array and iterate over it + * adding each attribute listed to this mci instance's kobject + */ + sysfs_attrib = mci->mc_driver_sysfs_attributes; + + /* loop if there are attributes and until we hit a NULL entry */ + while (sysfs_attrib && sysfs_attrib->attr.name) { + sysfs_remove_file(&mci->edac_mci_kobj, + (struct attribute *) sysfs_attrib); + sysfs_attrib++; + } +} + + +/* + * Create a new Memory Controller kobject instance, + * mc<id> under the 'mc' directory + * + * Return: + * 0 Success + * !0 Failure + */ +int edac_create_sysfs_mci_device(struct mem_ctl_info *mci) +{ + int i; + int err; + struct csrow_info *csrow; + struct kobject *kobj_mci = &mci->edac_mci_kobj; + + debugf0("%s() idx=%d\n", __func__, mci->mc_idx); + + /* create a symlink for the device */ + err = sysfs_create_link(kobj_mci, &mci->dev->kobj, + EDAC_DEVICE_SYMLINK); + if (err) { + debugf1("%s() failure to create symlink\n", __func__); + goto fail0; + } + + /* If the low level driver desires some attributes, + * then create them now for the driver. + */ + if (mci->mc_driver_sysfs_attributes) { + err = edac_create_mci_instance_attributes(mci); + if (err) { + debugf1("%s() failure to create mci attributes\n", + __func__); + goto fail0; + } + } + + /* Make directories for each CSROW object under the mc<id> kobject + */ + for (i = 0; i < mci->nr_csrows; i++) { + csrow = &mci->csrows[i]; + + /* Only expose populated CSROWs */ + if (csrow->nr_pages > 0) { + err = edac_create_csrow_object(mci, csrow, i); + if (err) { + debugf1("%s() failure: create csrow %d obj\n", + __func__, i); + goto fail1; + } + } + } + + return 0; + + /* CSROW error: backout what has already been registered, */ +fail1: + for (i--; i >= 0; i--) { + if (csrow->nr_pages > 0) { + kobject_unregister(&mci->csrows[i].kobj); + } + } + + /* remove the mci instance's attributes, if any */ + edac_remove_mci_instance_attributes(mci); + + /* remove the symlink */ + sysfs_remove_link(kobj_mci, EDAC_DEVICE_SYMLINK); + +fail0: + return err; +} + +/* + * remove a Memory Controller instance + */ +void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci) +{ + int i; + + debugf0("%s()\n", __func__); + + /* remove all csrow kobjects */ + for (i = 0; i < mci->nr_csrows; i++) { + if (mci->csrows[i].nr_pages > 0) { + debugf0("%s() unreg csrow-%d\n", __func__, i); + kobject_unregister(&mci->csrows[i].kobj); + } + } + + debugf0("%s() remove_link\n", __func__); + + /* remove the symlink */ + sysfs_remove_link(&mci->edac_mci_kobj, EDAC_DEVICE_SYMLINK); + + debugf0("%s() remove_mci_instance\n", __func__); + + /* remove this mci instance's attribtes */ + edac_remove_mci_instance_attributes(mci); + + debugf0("%s() unregister this mci kobj\n", __func__); + + /* unregister this instance's kobject */ + kobject_unregister(&mci->edac_mci_kobj); +} + + + + +/* + * edac_setup_sysfs_mc_kset(void) + * + * Initialize the mc_kset for the 'mc' entry + * This requires creating the top 'mc' directory with a kset + * and its controls/attributes. + * + * To this 'mc' kset, instance 'mci' will be grouped as children. + * + * Return: 0 SUCCESS + * !0 FAILURE error code + */ +int edac_sysfs_setup_mc_kset(void) +{ + int err = 0; + struct sysdev_class *edac_class; + + debugf1("%s()\n", __func__); + + /* get the /sys/devices/system/edac class reference */ + edac_class = edac_get_edac_class(); + if (edac_class == NULL) { + debugf1("%s() no edac_class error=%d\n", __func__, err); + goto fail_out; + } + + /* Init the MC's kobject */ + mc_kset.kobj.parent = &edac_class->kset.kobj; + + /* register the mc_kset */ + err = kset_register(&mc_kset); + if (err) { + debugf1("%s() Failed to register '.../edac/mc'\n", __func__); + goto fail_out; + } + + debugf1("%s() Registered '.../edac/mc' kobject\n", __func__); + + return 0; + + + /* error unwind stack */ +fail_out: + return err; +} + +/* + * edac_sysfs_teardown_mc_kset + * + * deconstruct the mc_ket for memory controllers + */ +void edac_sysfs_teardown_mc_kset(void) +{ + kset_unregister(&mc_kset); +} + diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c new file mode 100644 index 000000000000..e0c4a4086055 --- /dev/null +++ b/drivers/edac/edac_module.c @@ -0,0 +1,222 @@ +/* + * edac_module.c + * + * (C) 2007 www.softwarebitmaker.com + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * Author: Doug Thompson <dougthompson@xmission.com> + * + */ +#include <linux/edac.h> + +#include "edac_core.h" +#include "edac_module.h" + +#define EDAC_VERSION "Ver: 2.1.0 " __DATE__ + +#ifdef CONFIG_EDAC_DEBUG +/* Values of 0 to 4 will generate output */ +int edac_debug_level = 2; +EXPORT_SYMBOL_GPL(edac_debug_level); +#endif + +/* scope is to module level only */ +struct workqueue_struct *edac_workqueue; + +/* + * sysfs object: /sys/devices/system/edac + * need to export to other files in this modules + */ +static struct sysdev_class edac_class = { + set_kset_name("edac"), +}; +static int edac_class_valid; + +/* + * edac_op_state_to_string() + */ +char *edac_op_state_to_string(int opstate) +{ + if (opstate == OP_RUNNING_POLL) + return "POLLED"; + else if (opstate == OP_RUNNING_INTERRUPT) + return "INTERRUPT"; + else if (opstate == OP_RUNNING_POLL_INTR) + return "POLL-INTR"; + else if (opstate == OP_ALLOC) + return "ALLOC"; + else if (opstate == OP_OFFLINE) + return "OFFLINE"; + + return "UNKNOWN"; +} + +/* + * edac_get_edac_class() + * + * return pointer to the edac class of 'edac' + */ +struct sysdev_class *edac_get_edac_class(void) +{ + struct sysdev_class *classptr = NULL; + + if (edac_class_valid) + classptr = &edac_class; + + return classptr; +} + +/* + * edac_register_sysfs_edac_name() + * + * register the 'edac' into /sys/devices/system + * + * return: + * 0 success + * !0 error + */ +static int edac_register_sysfs_edac_name(void) +{ + int err; + + /* create the /sys/devices/system/edac directory */ + err = sysdev_class_register(&edac_class); + + if (err) { + debugf1("%s() error=%d\n", __func__, err); + return err; + } + + edac_class_valid = 1; + return 0; +} + +/* + * sysdev_class_unregister() + * + * unregister the 'edac' from /sys/devices/system + */ +static void edac_unregister_sysfs_edac_name(void) +{ + /* only if currently registered, then unregister it */ + if (edac_class_valid) + sysdev_class_unregister(&edac_class); + + edac_class_valid = 0; +} + +/* + * edac_workqueue_setup + * initialize the edac work queue for polling operations + */ +static int edac_workqueue_setup(void) +{ + edac_workqueue = create_singlethread_workqueue("edac-poller"); + if (edac_workqueue == NULL) + return -ENODEV; + else + return 0; +} + +/* + * edac_workqueue_teardown + * teardown the edac workqueue + */ +static void edac_workqueue_teardown(void) +{ + if (edac_workqueue) { + flush_workqueue(edac_workqueue); + destroy_workqueue(edac_workqueue); + edac_workqueue = NULL; + } +} + +/* + * edac_init + * module initialization entry point + */ +static int __init edac_init(void) +{ + int err = 0; + + edac_printk(KERN_INFO, EDAC_MC, EDAC_VERSION "\n"); + + /* + * Harvest and clear any boot/initialization PCI parity errors + * + * FIXME: This only clears errors logged by devices present at time of + * module initialization. We should also do an initial clear + * of each newly hotplugged device. + */ + edac_pci_clear_parity_errors(); + + /* + * perform the registration of the /sys/devices/system/edac class object + */ + if (edac_register_sysfs_edac_name()) { + edac_printk(KERN_ERR, EDAC_MC, + "Error initializing 'edac' kobject\n"); + err = -ENODEV; + goto error; + } + + /* + * now set up the mc_kset under the edac class object + */ + err = edac_sysfs_setup_mc_kset(); + if (err) + goto sysfs_setup_fail; + + /* Setup/Initialize the workq for this core */ + err = edac_workqueue_setup(); + if (err) { + edac_printk(KERN_ERR, EDAC_MC, "init WorkQueue failure\n"); + goto workq_fail; + } + + return 0; + + /* Error teardown stack */ +workq_fail: + edac_sysfs_teardown_mc_kset(); + +sysfs_setup_fail: + edac_unregister_sysfs_edac_name(); + +error: + return err; +} + +/* + * edac_exit() + * module exit/termination function + */ +static void __exit edac_exit(void) +{ + debugf0("%s()\n", __func__); + + /* tear down the various subsystems */ + edac_workqueue_teardown(); + edac_sysfs_teardown_mc_kset(); + edac_unregister_sysfs_edac_name(); +} + +/* + * Inform the kernel of our entry and exit points + */ +module_init(edac_init); +module_exit(edac_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Doug Thompson www.softwarebitmaker.com, et al"); +MODULE_DESCRIPTION("Core library routines for EDAC reporting"); + +/* refer to *_sysfs.c files for parameters that are exported via sysfs */ + +#ifdef CONFIG_EDAC_DEBUG +module_param(edac_debug_level, int, 0644); +MODULE_PARM_DESC(edac_debug_level, "Debug level"); +#endif diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h new file mode 100644 index 000000000000..a2134dfc3cc6 --- /dev/null +++ b/drivers/edac/edac_module.h @@ -0,0 +1,77 @@ + +/* + * edac_module.h + * + * For defining functions/data for within the EDAC_CORE module only + * + * written by doug thompson <norsk5@xmission.h> + */ + +#ifndef __EDAC_MODULE_H__ +#define __EDAC_MODULE_H__ + +#include <linux/sysdev.h> + +#include "edac_core.h" + +/* + * INTERNAL EDAC MODULE: + * EDAC memory controller sysfs create/remove functions + * and setup/teardown functions + * + * edac_mc objects + */ +extern int edac_sysfs_setup_mc_kset(void); +extern void edac_sysfs_teardown_mc_kset(void); +extern int edac_mc_register_sysfs_main_kobj(struct mem_ctl_info *mci); +extern void edac_mc_unregister_sysfs_main_kobj(struct mem_ctl_info *mci); +extern int edac_create_sysfs_mci_device(struct mem_ctl_info *mci); +extern void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci); +extern void edac_check_mc_devices(void); +extern int edac_get_log_ue(void); +extern int edac_get_log_ce(void); +extern int edac_get_panic_on_ue(void); +extern int edac_mc_get_log_ue(void); +extern int edac_mc_get_log_ce(void); +extern int edac_mc_get_panic_on_ue(void); +extern int edac_get_poll_msec(void); +extern int edac_mc_get_poll_msec(void); + +extern int edac_device_register_sysfs_main_kobj( + struct edac_device_ctl_info *edac_dev); +extern void edac_device_unregister_sysfs_main_kobj( + struct edac_device_ctl_info *edac_dev); +extern int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev); +extern void edac_device_remove_sysfs(struct edac_device_ctl_info *edac_dev); +extern struct sysdev_class *edac_get_edac_class(void); + +/* edac core workqueue: single CPU mode */ +extern struct workqueue_struct *edac_workqueue; +extern void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev, + unsigned msec); +extern void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev); +extern void edac_device_reset_delay_period(struct edac_device_ctl_info + *edac_dev, unsigned long value); +extern void *edac_align_ptr(void *ptr, unsigned size); + +/* + * EDAC PCI functions + */ +#ifdef CONFIG_PCI +extern void edac_pci_do_parity_check(void); +extern void edac_pci_clear_parity_errors(void); +extern int edac_sysfs_pci_setup(void); +extern void edac_sysfs_pci_teardown(void); +extern int edac_pci_get_check_errors(void); +extern int edac_pci_get_poll_msec(void); +#else /* CONFIG_PCI */ +/* pre-process these away */ +#define edac_pci_do_parity_check() +#define edac_pci_clear_parity_errors() +#define edac_sysfs_pci_setup() (0) +#define edac_sysfs_pci_teardown() +#define edac_pci_get_check_errors() +#define edac_pci_get_poll_msec() +#endif /* CONFIG_PCI */ + +#endif /* __EDAC_MODULE_H__ */ diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c new file mode 100644 index 000000000000..d9cd5e048cee --- /dev/null +++ b/drivers/edac/edac_pci.c @@ -0,0 +1,433 @@ +/* + * EDAC PCI component + * + * Author: Dave Jiang <djiang@mvista.com> + * + * 2007 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + * + */ +#include <linux/module.h> +#include <linux/types.h> +#include <linux/smp.h> +#include <linux/init.h> +#include <linux/sysctl.h> +#include <linux/highmem.h> +#include <linux/timer.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/list.h> +#include <linux/sysdev.h> +#include <linux/ctype.h> +#include <linux/workqueue.h> +#include <asm/uaccess.h> +#include <asm/page.h> + +#include "edac_core.h" +#include "edac_module.h" + +static DEFINE_MUTEX(edac_pci_ctls_mutex); +static struct list_head edac_pci_list = LIST_HEAD_INIT(edac_pci_list); + +static inline void edac_lock_pci_list(void) +{ + mutex_lock(&edac_pci_ctls_mutex); +} + +static inline void edac_unlock_pci_list(void) +{ + mutex_unlock(&edac_pci_ctls_mutex); +} + +/* + * The alloc() and free() functions for the 'edac_pci' control info + * structure. The chip driver will allocate one of these for each + * edac_pci it is going to control/register with the EDAC CORE. + */ +struct edac_pci_ctl_info *edac_pci_alloc_ctl_info(unsigned int sz_pvt, + const char *edac_pci_name) +{ + struct edac_pci_ctl_info *pci; + void *pvt; + unsigned int size; + + pci = (struct edac_pci_ctl_info *)0; + pvt = edac_align_ptr(&pci[1], sz_pvt); + size = ((unsigned long)pvt) + sz_pvt; + + if ((pci = kzalloc(size, GFP_KERNEL)) == NULL) + return NULL; + + pvt = sz_pvt ? ((char *)pci) + ((unsigned long)pvt) : NULL; + + pci->pvt_info = pvt; + + pci->op_state = OP_ALLOC; + + snprintf(pci->name, strlen(edac_pci_name) + 1, "%s", edac_pci_name); + + return pci; +} + +EXPORT_SYMBOL_GPL(edac_pci_alloc_ctl_info); + +/* + * edac_pci_free_ctl_info() + * frees the memory allocated by edac_pci_alloc_ctl_info() function + */ +void edac_pci_free_ctl_info(struct edac_pci_ctl_info *pci) +{ + kfree(pci); +} + +EXPORT_SYMBOL_GPL(edac_pci_free_ctl_info); + +/* + * find_edac_pci_by_dev() + * scans the edac_pci list for a specific 'struct device *' + */ +static struct edac_pci_ctl_info *find_edac_pci_by_dev(struct device *dev) +{ + struct edac_pci_ctl_info *pci; + struct list_head *item; + + debugf3("%s()\n", __func__); + + list_for_each(item, &edac_pci_list) { + pci = list_entry(item, struct edac_pci_ctl_info, link); + + if (pci->dev == dev) + return pci; + } + + return NULL; +} + +/* + * add_edac_pci_to_global_list + * Before calling this function, caller must assign a unique value to + * edac_dev->pci_idx. + * Return: + * 0 on success + * 1 on failure + */ +static int add_edac_pci_to_global_list(struct edac_pci_ctl_info *pci) +{ + struct list_head *item, *insert_before; + struct edac_pci_ctl_info *rover; + + insert_before = &edac_pci_list; + + /* Determine if already on the list */ + if (unlikely((rover = find_edac_pci_by_dev(pci->dev)) != NULL)) + goto fail0; + + /* Insert in ascending order by 'pci_idx', so find position */ + list_for_each(item, &edac_pci_list) { + rover = list_entry(item, struct edac_pci_ctl_info, link); + + if (rover->pci_idx >= pci->pci_idx) { + if (unlikely(rover->pci_idx == pci->pci_idx)) + goto fail1; + + insert_before = item; + break; + } + } + + list_add_tail_rcu(&pci->link, insert_before); + return 0; + +fail0: + edac_printk(KERN_WARNING, EDAC_PCI, + "%s (%s) %s %s already assigned %d\n", + rover->dev->bus_id, dev_name(rover), + rover->mod_name, rover->ctl_name, rover->pci_idx); + return 1; + +fail1: + edac_printk(KERN_WARNING, EDAC_PCI, + "but in low-level driver: attempt to assign\n" + "\tduplicate pci_idx %d in %s()\n", rover->pci_idx, + __func__); + return 1; +} + +/* + * complete_edac_pci_list_del + */ +static void complete_edac_pci_list_del(struct rcu_head *head) +{ + struct edac_pci_ctl_info *pci; + + pci = container_of(head, struct edac_pci_ctl_info, rcu); + INIT_LIST_HEAD(&pci->link); + complete(&pci->complete); +} + +/* + * del_edac_pci_from_global_list + */ +static void del_edac_pci_from_global_list(struct edac_pci_ctl_info *pci) +{ + list_del_rcu(&pci->link); + init_completion(&pci->complete); + call_rcu(&pci->rcu, complete_edac_pci_list_del); + wait_for_completion(&pci->complete); +} + +/* + * edac_pci_find() + * Search for an edac_pci_ctl_info structure whose index is 'idx' + * + * If found, return a pointer to the structure + * Else return NULL. + * + * Caller must hold pci_ctls_mutex. + */ +struct edac_pci_ctl_info *edac_pci_find(int idx) +{ + struct list_head *item; + struct edac_pci_ctl_info *pci; + + /* Iterage over list, looking for exact match of ID */ + list_for_each(item, &edac_pci_list) { + pci = list_entry(item, struct edac_pci_ctl_info, link); + + if (pci->pci_idx >= idx) { + if (pci->pci_idx == idx) + return pci; + + /* not on list, so terminate early */ + break; + } + } + + return NULL; +} + +EXPORT_SYMBOL_GPL(edac_pci_find); + +/* + * edac_pci_workq_function() + * performs the operation scheduled by a workq request + */ +static void edac_pci_workq_function(struct work_struct *work_req) +{ + struct delayed_work *d_work = (struct delayed_work *)work_req; + struct edac_pci_ctl_info *pci = to_edac_pci_ctl_work(d_work); + + edac_lock_pci_list(); + + if ((pci->op_state == OP_RUNNING_POLL) && + (pci->edac_check != NULL) && (edac_pci_get_check_errors())) + pci->edac_check(pci); + + edac_unlock_pci_list(); + + /* Reschedule */ + queue_delayed_work(edac_workqueue, &pci->work, + msecs_to_jiffies(edac_pci_get_poll_msec())); +} + +/* + * edac_pci_workq_setup() + * initialize a workq item for this edac_pci instance + * passing in the new delay period in msec + */ +static void edac_pci_workq_setup(struct edac_pci_ctl_info *pci, + unsigned int msec) +{ + debugf0("%s()\n", __func__); + + INIT_DELAYED_WORK(&pci->work, edac_pci_workq_function); + queue_delayed_work(edac_workqueue, &pci->work, + msecs_to_jiffies(edac_pci_get_poll_msec())); +} + +/* + * edac_pci_workq_teardown() + * stop the workq processing on this edac_pci instance + */ +static void edac_pci_workq_teardown(struct edac_pci_ctl_info *pci) +{ + int status; + + status = cancel_delayed_work(&pci->work); + if (status == 0) + flush_workqueue(edac_workqueue); +} + +/* + * edac_pci_reset_delay_period + */ +void edac_pci_reset_delay_period(struct edac_pci_ctl_info *pci, + unsigned long value) +{ + edac_lock_pci_list(); + + edac_pci_workq_teardown(pci); + + edac_pci_workq_setup(pci, value); + + edac_unlock_pci_list(); +} + +EXPORT_SYMBOL_GPL(edac_pci_reset_delay_period); + +/* + * edac_pci_add_device: Insert the 'edac_dev' structure into the + * edac_pci global list and create sysfs entries associated with + * edac_pci structure. + * @pci: pointer to the edac_device structure to be added to the list + * @edac_idx: A unique numeric identifier to be assigned to the + * 'edac_pci' structure. + * + * Return: + * 0 Success + * !0 Failure + */ +int edac_pci_add_device(struct edac_pci_ctl_info *pci, int edac_idx) +{ + debugf0("%s()\n", __func__); + + pci->pci_idx = edac_idx; + + edac_lock_pci_list(); + + if (add_edac_pci_to_global_list(pci)) + goto fail0; + + pci->start_time = jiffies; + + if (edac_pci_create_sysfs(pci)) { + edac_pci_printk(pci, KERN_WARNING, + "failed to create sysfs pci\n"); + goto fail1; + } + + if (pci->edac_check != NULL) { + pci->op_state = OP_RUNNING_POLL; + + edac_pci_workq_setup(pci, 1000); + } else { + pci->op_state = OP_RUNNING_INTERRUPT; + } + + edac_pci_printk(pci, KERN_INFO, + "Giving out device to module '%s' controller '%s':" + " DEV '%s' (%s)\n", + pci->mod_name, + pci->ctl_name, + dev_name(pci), edac_op_state_to_string(pci->op_state)); + + edac_unlock_pci_list(); + return 0; + +fail1: + del_edac_pci_from_global_list(pci); +fail0: + edac_unlock_pci_list(); + return 1; +} + +EXPORT_SYMBOL_GPL(edac_pci_add_device); + +/* + * edac_pci_del_device() + * Remove sysfs entries for specified edac_pci structure and + * then remove edac_pci structure from global list + * + * @dev: + * Pointer to 'struct device' representing edac_pci structure + * to remove + * + * Return: + * Pointer to removed edac_pci structure, + * or NULL if device not found + */ +struct edac_pci_ctl_info *edac_pci_del_device(struct device *dev) +{ + struct edac_pci_ctl_info *pci; + + debugf0("%s()\n", __func__); + + edac_lock_pci_list(); + + if ((pci = find_edac_pci_by_dev(dev)) == NULL) { + edac_unlock_pci_list(); + return NULL; + } + + pci->op_state = OP_OFFLINE; + + edac_pci_workq_teardown(pci); + + edac_pci_remove_sysfs(pci); + + del_edac_pci_from_global_list(pci); + + edac_unlock_pci_list(); + + edac_printk(KERN_INFO, EDAC_PCI, + "Removed device %d for %s %s: DEV %s\n", + pci->pci_idx, pci->mod_name, pci->ctl_name, dev_name(pci)); + + return pci; +} + +EXPORT_SYMBOL_GPL(edac_pci_del_device); + +void edac_pci_generic_check(struct edac_pci_ctl_info *pci) +{ + edac_pci_do_parity_check(); +} + +static int edac_pci_idx; +#define EDAC_PCI_GENCTL_NAME "EDAC PCI controller" + +struct edac_pci_gen_data { + int edac_idx; +}; + +struct edac_pci_ctl_info *edac_pci_create_generic_ctl(struct device *dev, + const char *mod_name) +{ + struct edac_pci_ctl_info *pci; + struct edac_pci_gen_data *pdata; + + pci = edac_pci_alloc_ctl_info(sizeof(*pdata), EDAC_PCI_GENCTL_NAME); + if (!pci) + return NULL; + + pdata = pci->pvt_info; + pci->dev = dev; + dev_set_drvdata(pci->dev, pci); + pci->dev_name = pci_name(to_pci_dev(dev)); + + pci->mod_name = mod_name; + pci->ctl_name = EDAC_PCI_GENCTL_NAME; + pci->edac_check = edac_pci_generic_check; + + pdata->edac_idx = edac_pci_idx++; + + if (edac_pci_add_device(pci, pdata->edac_idx) > 0) { + debugf3("%s(): failed edac_pci_add_device()\n", __func__); + edac_pci_free_ctl_info(pci); + return NULL; + } + + return pci; +} + +EXPORT_SYMBOL_GPL(edac_pci_create_generic_ctl); + +void edac_pci_release_generic_ctl(struct edac_pci_ctl_info *pci) +{ + edac_pci_del_device(pci->dev); + edac_pci_free_ctl_info(pci); +} + +EXPORT_SYMBOL_GPL(edac_pci_release_generic_ctl); diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c new file mode 100644 index 000000000000..fac94cae2c3d --- /dev/null +++ b/drivers/edac/edac_pci_sysfs.c @@ -0,0 +1,620 @@ +/* + * (C) 2005, 2006 Linux Networx (http://lnxi.com) + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Written Doug Thompson <norsk5@xmission.com> + * + */ +#include <linux/module.h> +#include <linux/sysdev.h> +#include <linux/ctype.h> + +#include "edac_core.h" +#include "edac_module.h" + +#ifdef CONFIG_PCI + +#define EDAC_PCI_SYMLINK "device" + +static int check_pci_errors; /* default YES check PCI parity */ +static int edac_pci_panic_on_pe; /* default no panic on PCI Parity */ +static int edac_pci_log_pe = 1; /* log PCI parity errors */ +static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */ +static atomic_t pci_parity_count = ATOMIC_INIT(0); +static atomic_t pci_nonparity_count = ATOMIC_INIT(0); +static int edac_pci_poll_msec = 1000; + +static struct kobject edac_pci_kobj; /* /sys/devices/system/edac/pci */ +static struct completion edac_pci_kobj_complete; +static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0); + +int edac_pci_get_check_errors(void) +{ + return check_pci_errors; +} + +int edac_pci_get_log_pe(void) +{ + return edac_pci_log_pe; +} + +int edac_pci_get_log_npe(void) +{ + return edac_pci_log_npe; +} + +int edac_pci_get_panic_on_pe(void) +{ + return edac_pci_panic_on_pe; +} + +int edac_pci_get_poll_msec(void) +{ + return edac_pci_poll_msec; +} + +/**************************** EDAC PCI sysfs instance *******************/ +static ssize_t instance_pe_count_show(struct edac_pci_ctl_info *pci, char *data) +{ + return sprintf(data, "%u\n", atomic_read(&pci->counters.pe_count)); +} + +static ssize_t instance_npe_count_show(struct edac_pci_ctl_info *pci, + char *data) +{ + return sprintf(data, "%u\n", atomic_read(&pci->counters.npe_count)); +} + +#define to_instance(k) container_of(k, struct edac_pci_ctl_info, kobj) +#define to_instance_attr(a) container_of(a, struct instance_attribute, attr) + +/* DEVICE instance kobject release() function */ +static void edac_pci_instance_release(struct kobject *kobj) +{ + struct edac_pci_ctl_info *pci; + + debugf1("%s()\n", __func__); + + pci = to_instance(kobj); + complete(&pci->kobj_complete); +} + +/* instance specific attribute structure */ +struct instance_attribute { + struct attribute attr; + ssize_t(*show) (struct edac_pci_ctl_info *, char *); + ssize_t(*store) (struct edac_pci_ctl_info *, const char *, size_t); +}; + +/* Function to 'show' fields from the edac_pci 'instance' structure */ +static ssize_t edac_pci_instance_show(struct kobject *kobj, + struct attribute *attr, char *buffer) +{ + struct edac_pci_ctl_info *pci = to_instance(kobj); + struct instance_attribute *instance_attr = to_instance_attr(attr); + + if (instance_attr->show) + return instance_attr->show(pci, buffer); + return -EIO; +} + +/* Function to 'store' fields into the edac_pci 'instance' structure */ +static ssize_t edac_pci_instance_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, size_t count) +{ + struct edac_pci_ctl_info *pci = to_instance(kobj); + struct instance_attribute *instance_attr = to_instance_attr(attr); + + if (instance_attr->store) + return instance_attr->store(pci, buffer, count); + return -EIO; +} + +static struct sysfs_ops pci_instance_ops = { + .show = edac_pci_instance_show, + .store = edac_pci_instance_store +}; + +#define INSTANCE_ATTR(_name, _mode, _show, _store) \ +static struct instance_attribute attr_instance_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .show = _show, \ + .store = _store, \ +}; + +INSTANCE_ATTR(pe_count, S_IRUGO, instance_pe_count_show, NULL); +INSTANCE_ATTR(npe_count, S_IRUGO, instance_npe_count_show, NULL); + +/* pci instance attributes */ +static struct instance_attribute *pci_instance_attr[] = { + &attr_instance_pe_count, + &attr_instance_npe_count, + NULL +}; + +/* the ktype for pci instance */ +static struct kobj_type ktype_pci_instance = { + .release = edac_pci_instance_release, + .sysfs_ops = &pci_instance_ops, + .default_attrs = (struct attribute **)pci_instance_attr, +}; + +static int edac_pci_create_instance_kobj(struct edac_pci_ctl_info *pci, int idx) +{ + int err; + + pci->kobj.parent = &edac_pci_kobj; + pci->kobj.ktype = &ktype_pci_instance; + + err = kobject_set_name(&pci->kobj, "pci%d", idx); + if (err) + return err; + + err = kobject_register(&pci->kobj); + if (err != 0) { + debugf2("%s() failed to register instance pci%d\n", + __func__, idx); + return err; + } + + debugf1("%s() Register instance 'pci%d' kobject\n", __func__, idx); + + return 0; +} + +static void +edac_pci_delete_instance_kobj(struct edac_pci_ctl_info *pci, int idx) +{ + init_completion(&pci->kobj_complete); + kobject_unregister(&pci->kobj); + wait_for_completion(&pci->kobj_complete); +} + +/***************************** EDAC PCI sysfs root **********************/ +#define to_edacpci(k) container_of(k, struct edac_pci_ctl_info, kobj) +#define to_edacpci_attr(a) container_of(a, struct edac_pci_attr, attr) + +static ssize_t edac_pci_int_show(void *ptr, char *buffer) +{ + int *value = ptr; + return sprintf(buffer, "%d\n", *value); +} + +static ssize_t edac_pci_int_store(void *ptr, const char *buffer, size_t count) +{ + int *value = ptr; + + if (isdigit(*buffer)) + *value = simple_strtoul(buffer, NULL, 0); + + return count; +} + +struct edac_pci_dev_attribute { + struct attribute attr; + void *value; + ssize_t(*show) (void *, char *); + ssize_t(*store) (void *, const char *, size_t); +}; + +/* Set of show/store abstract level functions for PCI Parity object */ +static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr, + char *buffer) +{ + struct edac_pci_dev_attribute *edac_pci_dev; + edac_pci_dev = (struct edac_pci_dev_attribute *)attr; + + if (edac_pci_dev->show) + return edac_pci_dev->show(edac_pci_dev->value, buffer); + return -EIO; +} + +static ssize_t edac_pci_dev_store(struct kobject *kobj, + struct attribute *attr, const char *buffer, + size_t count) +{ + struct edac_pci_dev_attribute *edac_pci_dev; + edac_pci_dev = (struct edac_pci_dev_attribute *)attr; + + if (edac_pci_dev->show) + return edac_pci_dev->store(edac_pci_dev->value, buffer, count); + return -EIO; +} + +static struct sysfs_ops edac_pci_sysfs_ops = { + .show = edac_pci_dev_show, + .store = edac_pci_dev_store +}; + +#define EDAC_PCI_ATTR(_name,_mode,_show,_store) \ +static struct edac_pci_dev_attribute edac_pci_attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .value = &_name, \ + .show = _show, \ + .store = _store, \ +}; + +#define EDAC_PCI_STRING_ATTR(_name,_data,_mode,_show,_store) \ +static struct edac_pci_dev_attribute edac_pci_attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .value = _data, \ + .show = _show, \ + .store = _store, \ +}; + +/* PCI Parity control files */ +EDAC_PCI_ATTR(check_pci_errors, S_IRUGO | S_IWUSR, edac_pci_int_show, + edac_pci_int_store); +EDAC_PCI_ATTR(edac_pci_log_pe, S_IRUGO | S_IWUSR, edac_pci_int_show, + edac_pci_int_store); +EDAC_PCI_ATTR(edac_pci_log_npe, S_IRUGO | S_IWUSR, edac_pci_int_show, + edac_pci_int_store); +EDAC_PCI_ATTR(edac_pci_panic_on_pe, S_IRUGO | S_IWUSR, edac_pci_int_show, + edac_pci_int_store); +EDAC_PCI_ATTR(pci_parity_count, S_IRUGO, edac_pci_int_show, NULL); +EDAC_PCI_ATTR(pci_nonparity_count, S_IRUGO, edac_pci_int_show, NULL); + +/* Base Attributes of the memory ECC object */ +static struct edac_pci_dev_attribute *edac_pci_attr[] = { + &edac_pci_attr_check_pci_errors, + &edac_pci_attr_edac_pci_log_pe, + &edac_pci_attr_edac_pci_log_npe, + &edac_pci_attr_edac_pci_panic_on_pe, + &edac_pci_attr_pci_parity_count, + &edac_pci_attr_pci_nonparity_count, + NULL, +}; + +/* No memory to release */ +static void edac_pci_release(struct kobject *kobj) +{ + struct edac_pci_ctl_info *pci; + + pci = to_edacpci(kobj); + + debugf1("%s()\n", __func__); + complete(&pci->kobj_complete); +} + +static struct kobj_type ktype_edac_pci = { + .release = edac_pci_release, + .sysfs_ops = &edac_pci_sysfs_ops, + .default_attrs = (struct attribute **)edac_pci_attr, +}; + +/** + * edac_sysfs_pci_setup() + * + * setup the sysfs for EDAC PCI attributes + * assumes edac_class has already been initialized + */ +int edac_pci_register_main_kobj(void) +{ + int err; + struct sysdev_class *edac_class; + + debugf1("%s()\n", __func__); + + edac_class = edac_get_edac_class(); + if (edac_class == NULL) { + debugf1("%s() no edac_class\n", __func__); + return -ENODEV; + } + + edac_pci_kobj.ktype = &ktype_edac_pci; + + edac_pci_kobj.parent = &edac_class->kset.kobj; + + err = kobject_set_name(&edac_pci_kobj, "pci"); + if (err) + return err; + + /* Instanstiate the pci object */ + /* FIXME: maybe new sysdev_create_subdir() */ + err = kobject_register(&edac_pci_kobj); + + if (err) { + debugf1("Failed to register '.../edac/pci'\n"); + return err; + } + + debugf1("Registered '.../edac/pci' kobject\n"); + + return 0; +} + +/* + * edac_pci_unregister_main_kobj() + * + * perform the sysfs teardown for the PCI attributes + */ +void edac_pci_unregister_main_kobj(void) +{ + debugf0("%s()\n", __func__); + init_completion(&edac_pci_kobj_complete); + kobject_unregister(&edac_pci_kobj); + wait_for_completion(&edac_pci_kobj_complete); +} + +int edac_pci_create_sysfs(struct edac_pci_ctl_info *pci) +{ + int err; + struct kobject *edac_kobj = &pci->kobj; + + if (atomic_inc_return(&edac_pci_sysfs_refcount) == 1) { + err = edac_pci_register_main_kobj(); + if (err) { + atomic_dec(&edac_pci_sysfs_refcount); + return err; + } + } + + err = edac_pci_create_instance_kobj(pci, pci->pci_idx); + if (err) { + if (atomic_dec_return(&edac_pci_sysfs_refcount) == 0) + edac_pci_unregister_main_kobj(); + } + + debugf0("%s() idx=%d\n", __func__, pci->pci_idx); + + err = sysfs_create_link(edac_kobj, &pci->dev->kobj, EDAC_PCI_SYMLINK); + if (err) { + debugf0("%s() sysfs_create_link() returned err= %d\n", + __func__, err); + return err; + } + + return 0; +} + +void edac_pci_remove_sysfs(struct edac_pci_ctl_info *pci) +{ + debugf0("%s()\n", __func__); + + edac_pci_delete_instance_kobj(pci, pci->pci_idx); + + sysfs_remove_link(&pci->kobj, EDAC_PCI_SYMLINK); + + if (atomic_dec_return(&edac_pci_sysfs_refcount) == 0) + edac_pci_unregister_main_kobj(); +} + +/************************ PCI error handling *************************/ +static u16 get_pci_parity_status(struct pci_dev *dev, int secondary) +{ + int where; + u16 status; + + where = secondary ? PCI_SEC_STATUS : PCI_STATUS; + pci_read_config_word(dev, where, &status); + + /* If we get back 0xFFFF then we must suspect that the card has been + * pulled but the Linux PCI layer has not yet finished cleaning up. + * We don't want to report on such devices + */ + + if (status == 0xFFFF) { + u32 sanity; + + pci_read_config_dword(dev, 0, &sanity); + + if (sanity == 0xFFFFFFFF) + return 0; + } + + status &= PCI_STATUS_DETECTED_PARITY | PCI_STATUS_SIG_SYSTEM_ERROR | + PCI_STATUS_PARITY; + + if (status) + /* reset only the bits we are interested in */ + pci_write_config_word(dev, where, status); + + return status; +} + +typedef void (*pci_parity_check_fn_t) (struct pci_dev * dev); + +/* Clear any PCI parity errors logged by this device. */ +static void edac_pci_dev_parity_clear(struct pci_dev *dev) +{ + u8 header_type; + + get_pci_parity_status(dev, 0); + + /* read the device TYPE, looking for bridges */ + pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type); + + if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) + get_pci_parity_status(dev, 1); +} + +/* + * PCI Parity polling + * + */ +static void edac_pci_dev_parity_test(struct pci_dev *dev) +{ + u16 status; + u8 header_type; + + /* read the STATUS register on this device + */ + status = get_pci_parity_status(dev, 0); + + debugf2("PCI STATUS= 0x%04x %s\n", status, dev->dev.bus_id); + + /* check the status reg for errors */ + if (status) { + if (status & (PCI_STATUS_SIG_SYSTEM_ERROR)) { + edac_printk(KERN_CRIT, EDAC_PCI, + "Signaled System Error on %s\n", + pci_name(dev)); + atomic_inc(&pci_nonparity_count); + } + + if (status & (PCI_STATUS_PARITY)) { + edac_printk(KERN_CRIT, EDAC_PCI, + "Master Data Parity Error on %s\n", + pci_name(dev)); + + atomic_inc(&pci_parity_count); + } + + if (status & (PCI_STATUS_DETECTED_PARITY)) { + edac_printk(KERN_CRIT, EDAC_PCI, + "Detected Parity Error on %s\n", + pci_name(dev)); + + atomic_inc(&pci_parity_count); + } + } + + /* read the device TYPE, looking for bridges */ + pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type); + + debugf2("PCI HEADER TYPE= 0x%02x %s\n", header_type, dev->dev.bus_id); + + if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { + /* On bridges, need to examine secondary status register */ + status = get_pci_parity_status(dev, 1); + + debugf2("PCI SEC_STATUS= 0x%04x %s\n", status, dev->dev.bus_id); + + /* check the secondary status reg for errors */ + if (status) { + if (status & (PCI_STATUS_SIG_SYSTEM_ERROR)) { + edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " + "Signaled System Error on %s\n", + pci_name(dev)); + atomic_inc(&pci_nonparity_count); + } + + if (status & (PCI_STATUS_PARITY)) { + edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " + "Master Data Parity Error on " + "%s\n", pci_name(dev)); + + atomic_inc(&pci_parity_count); + } + + if (status & (PCI_STATUS_DETECTED_PARITY)) { + edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " + "Detected Parity Error on %s\n", + pci_name(dev)); + + atomic_inc(&pci_parity_count); + } + } + } +} + +/* + * pci_dev parity list iterator + * Scan the PCI device list for one iteration, looking for SERRORs + * Master Parity ERRORS or Parity ERRORs on primary or secondary devices + */ +static inline void edac_pci_dev_parity_iterator(pci_parity_check_fn_t fn) +{ + struct pci_dev *dev = NULL; + + /* request for kernel access to the next PCI device, if any, + * and while we are looking at it have its reference count + * bumped until we are done with it + */ + while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { + fn(dev); + } +} + +/* + * edac_pci_do_parity_check + * + * performs the actual PCI parity check operation + */ +void edac_pci_do_parity_check(void) +{ + unsigned long flags; + int before_count; + + debugf3("%s()\n", __func__); + + if (!check_pci_errors) + return; + + before_count = atomic_read(&pci_parity_count); + + /* scan all PCI devices looking for a Parity Error on devices and + * bridges + */ + local_irq_save(flags); + edac_pci_dev_parity_iterator(edac_pci_dev_parity_test); + local_irq_restore(flags); + + /* Only if operator has selected panic on PCI Error */ + if (edac_pci_get_panic_on_pe()) { + /* If the count is different 'after' from 'before' */ + if (before_count != atomic_read(&pci_parity_count)) + panic("EDAC: PCI Parity Error"); + } +} + +void edac_pci_clear_parity_errors(void) +{ + /* Clear any PCI bus parity errors that devices initially have logged + * in their registers. + */ + edac_pci_dev_parity_iterator(edac_pci_dev_parity_clear); +} +void edac_pci_handle_pe(struct edac_pci_ctl_info *pci, const char *msg) +{ + + /* global PE counter incremented by edac_pci_do_parity_check() */ + atomic_inc(&pci->counters.pe_count); + + if (edac_pci_get_log_pe()) + edac_pci_printk(pci, KERN_WARNING, + "Parity Error ctl: %s %d: %s\n", + pci->ctl_name, pci->pci_idx, msg); + + /* + * poke all PCI devices and see which one is the troublemaker + * panic() is called if set + */ + edac_pci_do_parity_check(); +} + +EXPORT_SYMBOL_GPL(edac_pci_handle_pe); + +void edac_pci_handle_npe(struct edac_pci_ctl_info *pci, const char *msg) +{ + + /* global NPE counter incremented by edac_pci_do_parity_check() */ + atomic_inc(&pci->counters.npe_count); + + if (edac_pci_get_log_npe()) + edac_pci_printk(pci, KERN_WARNING, + "Non-Parity Error ctl: %s %d: %s\n", + pci->ctl_name, pci->pci_idx, msg); + + /* + * poke all PCI devices and see which one is the troublemaker + * panic() is called if set + */ + edac_pci_do_parity_check(); +} + +EXPORT_SYMBOL_GPL(edac_pci_handle_npe); + +/* + * Define the PCI parameter to the module + */ +module_param(check_pci_errors, int, 0644); +MODULE_PARM_DESC(check_pci_errors, + "Check for PCI bus parity errors: 0=off 1=on"); +module_param(edac_pci_panic_on_pe, int, 0644); +MODULE_PARM_DESC(edac_pci_panic_on_pe, + "Panic on PCI Bus Parity error: 0=off 1=on"); + +#endif /* CONFIG_PCI */ diff --git a/drivers/edac/edac_stub.c b/drivers/edac/edac_stub.c new file mode 100644 index 000000000000..20b428aa155e --- /dev/null +++ b/drivers/edac/edac_stub.c @@ -0,0 +1,46 @@ +/* + * common EDAC components that must be in kernel + * + * Author: Dave Jiang <djiang@mvista.com> + * + * 2007 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + * + */ +#include <linux/module.h> +#include <linux/edac.h> +#include <asm/atomic.h> +#include <asm/edac.h> + +int edac_op_state = EDAC_OPSTATE_INVAL; +EXPORT_SYMBOL_GPL(edac_op_state); + +atomic_t edac_handlers = ATOMIC_INIT(0); +EXPORT_SYMBOL_GPL(edac_handlers); + +int edac_err_assert = 0; +EXPORT_SYMBOL_GPL(edac_err_assert); + +/* + * called to determine if there is an EDAC driver interested in + * knowing an event (such as NMI) occurred + */ +int edac_handler_set(void) +{ + if (edac_op_state == EDAC_OPSTATE_POLL) + return 0; + + return atomic_read(&edac_handlers); +} +EXPORT_SYMBOL_GPL(edac_handler_set); + +/* + * handler for NMI type of interrupts to assert error + */ +void edac_atomic_assert_error(void) +{ + edac_err_assert++; +} +EXPORT_SYMBOL_GPL(edac_atomic_assert_error); diff --git a/drivers/edac/i3000_edac.c b/drivers/edac/i3000_edac.c new file mode 100644 index 000000000000..0ecfdc432f87 --- /dev/null +++ b/drivers/edac/i3000_edac.c @@ -0,0 +1,506 @@ +/* + * Intel 3000/3010 Memory Controller kernel module + * Copyright (C) 2007 Akamai Technologies, Inc. + * Shamelessly copied from: + * Intel D82875P Memory Controller kernel module + * (C) 2003 Linux Networx (http://lnxi.com) + * + * This file may be distributed under the terms of the + * GNU General Public License. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/slab.h> +#include "edac_core.h" + +#define I3000_REVISION "1.1" + +#define EDAC_MOD_STR "i3000_edac" + +#define I3000_RANKS 8 +#define I3000_RANKS_PER_CHANNEL 4 +#define I3000_CHANNELS 2 + +/* Intel 3000 register addresses - device 0 function 0 - DRAM Controller */ + +#define I3000_MCHBAR 0x44 /* MCH Memory Mapped Register BAR */ +#define I3000_MCHBAR_MASK 0xffffc000 +#define I3000_MMR_WINDOW_SIZE 16384 + +#define I3000_EDEAP 0x70 /* Extended DRAM Error Address Pointer (8b) + * + * 7:1 reserved + * 0 bit 32 of address + */ +#define I3000_DEAP 0x58 /* DRAM Error Address Pointer (32b) + * + * 31:7 address + * 6:1 reserved + * 0 Error channel 0/1 + */ +#define I3000_DEAP_GRAIN (1 << 7) +#define I3000_DEAP_PFN(edeap, deap) ((((edeap) & 1) << (32 - PAGE_SHIFT)) | \ + ((deap) >> PAGE_SHIFT)) +#define I3000_DEAP_OFFSET(deap) ((deap) & ~(I3000_DEAP_GRAIN-1) & ~PAGE_MASK) +#define I3000_DEAP_CHANNEL(deap) ((deap) & 1) + +#define I3000_DERRSYN 0x5c /* DRAM Error Syndrome (8b) + * + * 7:0 DRAM ECC Syndrome + */ + +#define I3000_ERRSTS 0xc8 /* Error Status Register (16b) + * + * 15:12 reserved + * 11 MCH Thermal Sensor Event for SMI/SCI/SERR + * 10 reserved + * 9 LOCK to non-DRAM Memory Flag (LCKF) + * 8 Received Refresh Timeout Flag (RRTOF) + * 7:2 reserved + * 1 Multiple-bit DRAM ECC Error Flag (DMERR) + * 0 Single-bit DRAM ECC Error Flag (DSERR) + */ +#define I3000_ERRSTS_BITS 0x0b03 /* bits which indicate errors */ +#define I3000_ERRSTS_UE 0x0002 +#define I3000_ERRSTS_CE 0x0001 + +#define I3000_ERRCMD 0xca /* Error Command (16b) + * + * 15:12 reserved + * 11 SERR on MCH Thermal Sensor Event (TSESERR) + * 10 reserved + * 9 SERR on LOCK to non-DRAM Memory (LCKERR) + * 8 SERR on DRAM Refresh Timeout (DRTOERR) + * 7:2 reserved + * 1 SERR Multiple-Bit DRAM ECC Error (DMERR) + * 0 SERR on Single-Bit ECC Error (DSERR) + */ + +/* Intel MMIO register space - device 0 function 0 - MMR space */ + +#define I3000_DRB_SHIFT 25 /* 32MiB grain */ + +#define I3000_C0DRB 0x100 /* Channel 0 DRAM Rank Boundary (8b x 4) + * + * 7:0 Channel 0 DRAM Rank Boundary Address + */ +#define I3000_C1DRB 0x180 /* Channel 1 DRAM Rank Boundary (8b x 4) + * + * 7:0 Channel 1 DRAM Rank Boundary Address + */ + +#define I3000_C0DRA 0x108 /* Channel 0 DRAM Rank Attribute (8b x 2) + * + * 7 reserved + * 6:4 DRAM odd Rank Attribute + * 3 reserved + * 2:0 DRAM even Rank Attribute + * + * Each attribute defines the page + * size of the corresponding rank: + * 000: unpopulated + * 001: reserved + * 010: 4 KB + * 011: 8 KB + * 100: 16 KB + * Others: reserved + */ +#define I3000_C1DRA 0x188 /* Channel 1 DRAM Rank Attribute (8b x 2) */ +#define ODD_RANK_ATTRIB(dra) (((dra) & 0x70) >> 4) +#define EVEN_RANK_ATTRIB(dra) ((dra) & 0x07) + +#define I3000_C0DRC0 0x120 /* DRAM Controller Mode 0 (32b) + * + * 31:30 reserved + * 29 Initialization Complete (IC) + * 28:11 reserved + * 10:8 Refresh Mode Select (RMS) + * 7 reserved + * 6:4 Mode Select (SMS) + * 3:2 reserved + * 1:0 DRAM Type (DT) + */ + +#define I3000_C0DRC1 0x124 /* DRAM Controller Mode 1 (32b) + * + * 31 Enhanced Addressing Enable (ENHADE) + * 30:0 reserved + */ + +enum i3000p_chips { + I3000 = 0, +}; + +struct i3000_dev_info { + const char *ctl_name; +}; + +struct i3000_error_info { + u16 errsts; + u8 derrsyn; + u8 edeap; + u32 deap; + u16 errsts2; +}; + +static const struct i3000_dev_info i3000_devs[] = { + [I3000] = { + .ctl_name = "i3000"}, +}; + +static struct pci_dev *mci_pdev; +static int i3000_registered = 1; +static struct edac_pci_ctl_info *i3000_pci; + +static void i3000_get_error_info(struct mem_ctl_info *mci, + struct i3000_error_info *info) +{ + struct pci_dev *pdev; + + pdev = to_pci_dev(mci->dev); + + /* + * This is a mess because there is no atomic way to read all the + * registers at once and the registers can transition from CE being + * overwritten by UE. + */ + pci_read_config_word(pdev, I3000_ERRSTS, &info->errsts); + if (!(info->errsts & I3000_ERRSTS_BITS)) + return; + pci_read_config_byte(pdev, I3000_EDEAP, &info->edeap); + pci_read_config_dword(pdev, I3000_DEAP, &info->deap); + pci_read_config_byte(pdev, I3000_DERRSYN, &info->derrsyn); + pci_read_config_word(pdev, I3000_ERRSTS, &info->errsts2); + + /* + * If the error is the same for both reads then the first set + * of reads is valid. If there is a change then there is a CE + * with no info and the second set of reads is valid and + * should be UE info. + */ + if ((info->errsts ^ info->errsts2) & I3000_ERRSTS_BITS) { + pci_read_config_byte(pdev, I3000_EDEAP, &info->edeap); + pci_read_config_dword(pdev, I3000_DEAP, &info->deap); + pci_read_config_byte(pdev, I3000_DERRSYN, &info->derrsyn); + } + + /* Clear any error bits. + * (Yes, we really clear bits by writing 1 to them.) + */ + pci_write_bits16(pdev, I3000_ERRSTS, I3000_ERRSTS_BITS, + I3000_ERRSTS_BITS); +} + +static int i3000_process_error_info(struct mem_ctl_info *mci, + struct i3000_error_info *info, + int handle_errors) +{ + int row, multi_chan; + int pfn, offset, channel; + + multi_chan = mci->csrows[0].nr_channels - 1; + + if (!(info->errsts & I3000_ERRSTS_BITS)) + return 0; + + if (!handle_errors) + return 1; + + if ((info->errsts ^ info->errsts2) & I3000_ERRSTS_BITS) { + edac_mc_handle_ce_no_info(mci, "UE overwrote CE"); + info->errsts = info->errsts2; + } + + pfn = I3000_DEAP_PFN(info->edeap, info->deap); + offset = I3000_DEAP_OFFSET(info->deap); + channel = I3000_DEAP_CHANNEL(info->deap); + + row = edac_mc_find_csrow_by_page(mci, pfn); + + if (info->errsts & I3000_ERRSTS_UE) + edac_mc_handle_ue(mci, pfn, offset, row, "i3000 UE"); + else + edac_mc_handle_ce(mci, pfn, offset, info->derrsyn, row, + multi_chan ? channel : 0, "i3000 CE"); + + return 1; +} + +static void i3000_check(struct mem_ctl_info *mci) +{ + struct i3000_error_info info; + + debugf1("MC%d: %s()\n", mci->mc_idx, __func__); + i3000_get_error_info(mci, &info); + i3000_process_error_info(mci, &info, 1); +} + +static int i3000_is_interleaved(const unsigned char *c0dra, + const unsigned char *c1dra, + const unsigned char *c0drb, + const unsigned char *c1drb) +{ + int i; + + /* If the channels aren't populated identically then + * we're not interleaved. + */ + for (i = 0; i < I3000_RANKS_PER_CHANNEL / 2; i++) + if (ODD_RANK_ATTRIB(c0dra[i]) != ODD_RANK_ATTRIB(c1dra[i]) || + EVEN_RANK_ATTRIB(c0dra[i]) != + EVEN_RANK_ATTRIB(c1dra[i])) + return 0; + + /* If the rank boundaries for the two channels are different + * then we're not interleaved. + */ + for (i = 0; i < I3000_RANKS_PER_CHANNEL; i++) + if (c0drb[i] != c1drb[i]) + return 0; + + return 1; +} + +static int i3000_probe1(struct pci_dev *pdev, int dev_idx) +{ + int rc; + int i; + struct mem_ctl_info *mci = NULL; + unsigned long last_cumul_size; + int interleaved, nr_channels; + unsigned char dra[I3000_RANKS / 2], drb[I3000_RANKS]; + unsigned char *c0dra = dra, *c1dra = &dra[I3000_RANKS_PER_CHANNEL / 2]; + unsigned char *c0drb = drb, *c1drb = &drb[I3000_RANKS_PER_CHANNEL]; + unsigned long mchbar; + void *window; + + debugf0("MC: %s()\n", __func__); + + pci_read_config_dword(pdev, I3000_MCHBAR, (u32 *) & mchbar); + mchbar &= I3000_MCHBAR_MASK; + window = ioremap_nocache(mchbar, I3000_MMR_WINDOW_SIZE); + if (!window) { + printk(KERN_ERR "i3000: cannot map mmio space at 0x%lx\n", + mchbar); + return -ENODEV; + } + + c0dra[0] = readb(window + I3000_C0DRA + 0); /* ranks 0,1 */ + c0dra[1] = readb(window + I3000_C0DRA + 1); /* ranks 2,3 */ + c1dra[0] = readb(window + I3000_C1DRA + 0); /* ranks 0,1 */ + c1dra[1] = readb(window + I3000_C1DRA + 1); /* ranks 2,3 */ + + for (i = 0; i < I3000_RANKS_PER_CHANNEL; i++) { + c0drb[i] = readb(window + I3000_C0DRB + i); + c1drb[i] = readb(window + I3000_C1DRB + i); + } + + iounmap(window); + + /* Figure out how many channels we have. + * + * If we have what the datasheet calls "asymmetric channels" + * (essentially the same as what was called "virtual single + * channel mode" in the i82875) then it's a single channel as + * far as EDAC is concerned. + */ + interleaved = i3000_is_interleaved(c0dra, c1dra, c0drb, c1drb); + nr_channels = interleaved ? 2 : 1; + mci = edac_mc_alloc(0, I3000_RANKS / nr_channels, nr_channels, 0); + if (!mci) + return -ENOMEM; + + debugf3("MC: %s(): init mci\n", __func__); + + mci->dev = &pdev->dev; + mci->mtype_cap = MEM_FLAG_DDR2; + + mci->edac_ctl_cap = EDAC_FLAG_SECDED; + mci->edac_cap = EDAC_FLAG_SECDED; + + mci->mod_name = EDAC_MOD_STR; + mci->mod_ver = I3000_REVISION; + mci->ctl_name = i3000_devs[dev_idx].ctl_name; + mci->dev_name = pci_name(pdev); + mci->edac_check = i3000_check; + mci->ctl_page_to_phys = NULL; + + /* + * The dram rank boundary (DRB) reg values are boundary addresses + * for each DRAM rank with a granularity of 32MB. DRB regs are + * cumulative; the last one will contain the total memory + * contained in all ranks. + * + * If we're in interleaved mode then we're only walking through + * the ranks of controller 0, so we double all the values we see. + */ + for (last_cumul_size = i = 0; i < mci->nr_csrows; i++) { + u8 value; + u32 cumul_size; + struct csrow_info *csrow = &mci->csrows[i]; + + value = drb[i]; + cumul_size = value << (I3000_DRB_SHIFT - PAGE_SHIFT); + if (interleaved) + cumul_size <<= 1; + debugf3("MC: %s(): (%d) cumul_size 0x%x\n", + __func__, i, cumul_size); + if (cumul_size == last_cumul_size) { + csrow->mtype = MEM_EMPTY; + continue; + } + + csrow->first_page = last_cumul_size; + csrow->last_page = cumul_size - 1; + csrow->nr_pages = cumul_size - last_cumul_size; + last_cumul_size = cumul_size; + csrow->grain = I3000_DEAP_GRAIN; + csrow->mtype = MEM_DDR2; + csrow->dtype = DEV_UNKNOWN; + csrow->edac_mode = EDAC_UNKNOWN; + } + + /* Clear any error bits. + * (Yes, we really clear bits by writing 1 to them.) + */ + pci_write_bits16(pdev, I3000_ERRSTS, I3000_ERRSTS_BITS, + I3000_ERRSTS_BITS); + + rc = -ENODEV; + if (edac_mc_add_mc(mci)) { + debugf3("MC: %s(): failed edac_mc_add_mc()\n", __func__); + goto fail; + } + + /* allocating generic PCI control info */ + i3000_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!i3000_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + + /* get this far and it's successful */ + debugf3("MC: %s(): success\n", __func__); + return 0; + + fail: + if (mci) + edac_mc_free(mci); + + return rc; +} + +/* returns count (>= 0), or negative on error */ +static int __devinit i3000_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int rc; + + debugf0("MC: %s()\n", __func__); + + if (pci_enable_device(pdev) < 0) + return -EIO; + + rc = i3000_probe1(pdev, ent->driver_data); + if (mci_pdev == NULL) + mci_pdev = pci_dev_get(pdev); + + return rc; +} + +static void __devexit i3000_remove_one(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci; + + debugf0("%s()\n", __func__); + + if (i3000_pci) + edac_pci_release_generic_ctl(i3000_pci); + + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) + return; + + edac_mc_free(mci); +} + +static const struct pci_device_id i3000_pci_tbl[] __devinitdata = { + { + PCI_VEND_DEV(INTEL, 3000_HB), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I3000}, + { + 0, + } /* 0 terminated list. */ +}; + +MODULE_DEVICE_TABLE(pci, i3000_pci_tbl); + +static struct pci_driver i3000_driver = { + .name = EDAC_MOD_STR, + .probe = i3000_init_one, + .remove = __devexit_p(i3000_remove_one), + .id_table = i3000_pci_tbl, +}; + +static int __init i3000_init(void) +{ + int pci_rc; + + debugf3("MC: %s()\n", __func__); + pci_rc = pci_register_driver(&i3000_driver); + if (pci_rc < 0) + goto fail0; + + if (mci_pdev == NULL) { + i3000_registered = 0; + mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_3000_HB, NULL); + if (!mci_pdev) { + debugf0("i3000 pci_get_device fail\n"); + pci_rc = -ENODEV; + goto fail1; + } + + pci_rc = i3000_init_one(mci_pdev, i3000_pci_tbl); + if (pci_rc < 0) { + debugf0("i3000 init fail\n"); + pci_rc = -ENODEV; + goto fail1; + } + } + + return 0; + +fail1: + pci_unregister_driver(&i3000_driver); + +fail0: + if (mci_pdev) + pci_dev_put(mci_pdev); + + return pci_rc; +} + +static void __exit i3000_exit(void) +{ + debugf3("MC: %s()\n", __func__); + + pci_unregister_driver(&i3000_driver); + if (!i3000_registered) { + i3000_remove_one(mci_pdev); + pci_dev_put(mci_pdev); + } +} + +module_init(i3000_init); +module_exit(i3000_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Akamai Technologies Arthur Ulfeldt/Jason Uhlenkott"); +MODULE_DESCRIPTION("MC support for Intel 3000 memory hub controllers"); diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c new file mode 100644 index 000000000000..96f7e63e3996 --- /dev/null +++ b/drivers/edac/i5000_edac.c @@ -0,0 +1,1505 @@ +/* + * Intel 5000(P/V/X) class Memory Controllers kernel module + * + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Written by Douglas Thompson Linux Networx (http://lnxi.com) + * norsk5@xmission.com + * + * This module is based on the following document: + * + * Intel 5000X Chipset Memory Controller Hub (MCH) - Datasheet + * http://developer.intel.com/design/chipsets/datashts/313070.htm + * + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/slab.h> +#include <linux/edac.h> +#include <asm/mmzone.h> + +#include "edac_core.h" + +/* + * Alter this version for the I5000 module when modifications are made + */ +#define I5000_REVISION " Ver: 2.0.12 " __DATE__ +#define EDAC_MOD_STR "i5000_edac" + +#define i5000_printk(level, fmt, arg...) \ + edac_printk(level, "i5000", fmt, ##arg) + +#define i5000_mc_printk(mci, level, fmt, arg...) \ + edac_mc_chipset_printk(mci, level, "i5000", fmt, ##arg) + +#ifndef PCI_DEVICE_ID_INTEL_FBD_0 +#define PCI_DEVICE_ID_INTEL_FBD_0 0x25F5 +#endif +#ifndef PCI_DEVICE_ID_INTEL_FBD_1 +#define PCI_DEVICE_ID_INTEL_FBD_1 0x25F6 +#endif + +/* Device 16, + * Function 0: System Address + * Function 1: Memory Branch Map, Control, Errors Register + * Function 2: FSB Error Registers + * + * All 3 functions of Device 16 (0,1,2) share the SAME DID + */ +#define PCI_DEVICE_ID_INTEL_I5000_DEV16 0x25F0 + +/* OFFSETS for Function 0 */ + +/* OFFSETS for Function 1 */ +#define AMBASE 0x48 +#define MAXCH 0x56 +#define MAXDIMMPERCH 0x57 +#define TOLM 0x6C +#define REDMEMB 0x7C +#define RED_ECC_LOCATOR(x) ((x) & 0x3FFFF) +#define REC_ECC_LOCATOR_EVEN(x) ((x) & 0x001FF) +#define REC_ECC_LOCATOR_ODD(x) ((x) & 0x3FE00) +#define MIR0 0x80 +#define MIR1 0x84 +#define MIR2 0x88 +#define AMIR0 0x8C +#define AMIR1 0x90 +#define AMIR2 0x94 + +#define FERR_FAT_FBD 0x98 +#define NERR_FAT_FBD 0x9C +#define EXTRACT_FBDCHAN_INDX(x) (((x)>>28) & 0x3) +#define FERR_FAT_FBDCHAN 0x30000000 +#define FERR_FAT_M3ERR 0x00000004 +#define FERR_FAT_M2ERR 0x00000002 +#define FERR_FAT_M1ERR 0x00000001 +#define FERR_FAT_MASK (FERR_FAT_M1ERR | \ + FERR_FAT_M2ERR | \ + FERR_FAT_M3ERR) + +#define FERR_NF_FBD 0xA0 + +/* Thermal and SPD or BFD errors */ +#define FERR_NF_M28ERR 0x01000000 +#define FERR_NF_M27ERR 0x00800000 +#define FERR_NF_M26ERR 0x00400000 +#define FERR_NF_M25ERR 0x00200000 +#define FERR_NF_M24ERR 0x00100000 +#define FERR_NF_M23ERR 0x00080000 +#define FERR_NF_M22ERR 0x00040000 +#define FERR_NF_M21ERR 0x00020000 + +/* Correctable errors */ +#define FERR_NF_M20ERR 0x00010000 +#define FERR_NF_M19ERR 0x00008000 +#define FERR_NF_M18ERR 0x00004000 +#define FERR_NF_M17ERR 0x00002000 + +/* Non-Retry or redundant Retry errors */ +#define FERR_NF_M16ERR 0x00001000 +#define FERR_NF_M15ERR 0x00000800 +#define FERR_NF_M14ERR 0x00000400 +#define FERR_NF_M13ERR 0x00000200 + +/* Uncorrectable errors */ +#define FERR_NF_M12ERR 0x00000100 +#define FERR_NF_M11ERR 0x00000080 +#define FERR_NF_M10ERR 0x00000040 +#define FERR_NF_M9ERR 0x00000020 +#define FERR_NF_M8ERR 0x00000010 +#define FERR_NF_M7ERR 0x00000008 +#define FERR_NF_M6ERR 0x00000004 +#define FERR_NF_M5ERR 0x00000002 +#define FERR_NF_M4ERR 0x00000001 + +#define FERR_NF_UNCORRECTABLE (FERR_NF_M12ERR | \ + FERR_NF_M11ERR | \ + FERR_NF_M10ERR | \ + FERR_NF_M8ERR | \ + FERR_NF_M7ERR | \ + FERR_NF_M6ERR | \ + FERR_NF_M5ERR | \ + FERR_NF_M4ERR) +#define FERR_NF_CORRECTABLE (FERR_NF_M20ERR | \ + FERR_NF_M19ERR | \ + FERR_NF_M18ERR | \ + FERR_NF_M17ERR) +#define FERR_NF_DIMM_SPARE (FERR_NF_M27ERR | \ + FERR_NF_M28ERR) +#define FERR_NF_THERMAL (FERR_NF_M26ERR | \ + FERR_NF_M25ERR | \ + FERR_NF_M24ERR | \ + FERR_NF_M23ERR) +#define FERR_NF_SPD_PROTOCOL (FERR_NF_M22ERR) +#define FERR_NF_NORTH_CRC (FERR_NF_M21ERR) +#define FERR_NF_NON_RETRY (FERR_NF_M13ERR | \ + FERR_NF_M14ERR | \ + FERR_NF_M15ERR) + +#define NERR_NF_FBD 0xA4 +#define FERR_NF_MASK (FERR_NF_UNCORRECTABLE | \ + FERR_NF_CORRECTABLE | \ + FERR_NF_DIMM_SPARE | \ + FERR_NF_THERMAL | \ + FERR_NF_SPD_PROTOCOL | \ + FERR_NF_NORTH_CRC | \ + FERR_NF_NON_RETRY) + +#define EMASK_FBD 0xA8 +#define EMASK_FBD_M28ERR 0x08000000 +#define EMASK_FBD_M27ERR 0x04000000 +#define EMASK_FBD_M26ERR 0x02000000 +#define EMASK_FBD_M25ERR 0x01000000 +#define EMASK_FBD_M24ERR 0x00800000 +#define EMASK_FBD_M23ERR 0x00400000 +#define EMASK_FBD_M22ERR 0x00200000 +#define EMASK_FBD_M21ERR 0x00100000 +#define EMASK_FBD_M20ERR 0x00080000 +#define EMASK_FBD_M19ERR 0x00040000 +#define EMASK_FBD_M18ERR 0x00020000 +#define EMASK_FBD_M17ERR 0x00010000 + +#define EMASK_FBD_M15ERR 0x00004000 +#define EMASK_FBD_M14ERR 0x00002000 +#define EMASK_FBD_M13ERR 0x00001000 +#define EMASK_FBD_M12ERR 0x00000800 +#define EMASK_FBD_M11ERR 0x00000400 +#define EMASK_FBD_M10ERR 0x00000200 +#define EMASK_FBD_M9ERR 0x00000100 +#define EMASK_FBD_M8ERR 0x00000080 +#define EMASK_FBD_M7ERR 0x00000040 +#define EMASK_FBD_M6ERR 0x00000020 +#define EMASK_FBD_M5ERR 0x00000010 +#define EMASK_FBD_M4ERR 0x00000008 +#define EMASK_FBD_M3ERR 0x00000004 +#define EMASK_FBD_M2ERR 0x00000002 +#define EMASK_FBD_M1ERR 0x00000001 + +#define ENABLE_EMASK_FBD_FATAL_ERRORS (EMASK_FBD_M1ERR | \ + EMASK_FBD_M2ERR | \ + EMASK_FBD_M3ERR) + +#define ENABLE_EMASK_FBD_UNCORRECTABLE (EMASK_FBD_M4ERR | \ + EMASK_FBD_M5ERR | \ + EMASK_FBD_M6ERR | \ + EMASK_FBD_M7ERR | \ + EMASK_FBD_M8ERR | \ + EMASK_FBD_M9ERR | \ + EMASK_FBD_M10ERR | \ + EMASK_FBD_M11ERR | \ + EMASK_FBD_M12ERR) +#define ENABLE_EMASK_FBD_CORRECTABLE (EMASK_FBD_M17ERR | \ + EMASK_FBD_M18ERR | \ + EMASK_FBD_M19ERR | \ + EMASK_FBD_M20ERR) +#define ENABLE_EMASK_FBD_DIMM_SPARE (EMASK_FBD_M27ERR | \ + EMASK_FBD_M28ERR) +#define ENABLE_EMASK_FBD_THERMALS (EMASK_FBD_M26ERR | \ + EMASK_FBD_M25ERR | \ + EMASK_FBD_M24ERR | \ + EMASK_FBD_M23ERR) +#define ENABLE_EMASK_FBD_SPD_PROTOCOL (EMASK_FBD_M22ERR) +#define ENABLE_EMASK_FBD_NORTH_CRC (EMASK_FBD_M21ERR) +#define ENABLE_EMASK_FBD_NON_RETRY (EMASK_FBD_M15ERR | \ + EMASK_FBD_M14ERR | \ + EMASK_FBD_M13ERR) + +#define ENABLE_EMASK_ALL (ENABLE_EMASK_FBD_NON_RETRY | \ + ENABLE_EMASK_FBD_NORTH_CRC | \ + ENABLE_EMASK_FBD_SPD_PROTOCOL | \ + ENABLE_EMASK_FBD_THERMALS | \ + ENABLE_EMASK_FBD_DIMM_SPARE | \ + ENABLE_EMASK_FBD_FATAL_ERRORS | \ + ENABLE_EMASK_FBD_CORRECTABLE | \ + ENABLE_EMASK_FBD_UNCORRECTABLE) + +#define ERR0_FBD 0xAC +#define ERR1_FBD 0xB0 +#define ERR2_FBD 0xB4 +#define MCERR_FBD 0xB8 +#define NRECMEMA 0xBE +#define NREC_BANK(x) (((x)>>12) & 0x7) +#define NREC_RDWR(x) (((x)>>11) & 1) +#define NREC_RANK(x) (((x)>>8) & 0x7) +#define NRECMEMB 0xC0 +#define NREC_CAS(x) (((x)>>16) & 0xFFFFFF) +#define NREC_RAS(x) ((x) & 0x7FFF) +#define NRECFGLOG 0xC4 +#define NREEECFBDA 0xC8 +#define NREEECFBDB 0xCC +#define NREEECFBDC 0xD0 +#define NREEECFBDD 0xD4 +#define NREEECFBDE 0xD8 +#define REDMEMA 0xDC +#define RECMEMA 0xE2 +#define REC_BANK(x) (((x)>>12) & 0x7) +#define REC_RDWR(x) (((x)>>11) & 1) +#define REC_RANK(x) (((x)>>8) & 0x7) +#define RECMEMB 0xE4 +#define REC_CAS(x) (((x)>>16) & 0xFFFFFF) +#define REC_RAS(x) ((x) & 0x7FFF) +#define RECFGLOG 0xE8 +#define RECFBDA 0xEC +#define RECFBDB 0xF0 +#define RECFBDC 0xF4 +#define RECFBDD 0xF8 +#define RECFBDE 0xFC + +/* OFFSETS for Function 2 */ + +/* + * Device 21, + * Function 0: Memory Map Branch 0 + * + * Device 22, + * Function 0: Memory Map Branch 1 + */ +#define PCI_DEVICE_ID_I5000_BRANCH_0 0x25F5 +#define PCI_DEVICE_ID_I5000_BRANCH_1 0x25F6 + +#define AMB_PRESENT_0 0x64 +#define AMB_PRESENT_1 0x66 +#define MTR0 0x80 +#define MTR1 0x84 +#define MTR2 0x88 +#define MTR3 0x8C + +#define NUM_MTRS 4 +#define CHANNELS_PER_BRANCH (2) + +/* Defines to extract the vaious fields from the + * MTRx - Memory Technology Registers + */ +#define MTR_DIMMS_PRESENT(mtr) ((mtr) & (0x1 << 8)) +#define MTR_DRAM_WIDTH(mtr) ((((mtr) >> 6) & 0x1) ? 8 : 4) +#define MTR_DRAM_BANKS(mtr) ((((mtr) >> 5) & 0x1) ? 8 : 4) +#define MTR_DRAM_BANKS_ADDR_BITS(mtr) ((MTR_DRAM_BANKS(mtr) == 8) ? 3 : 2) +#define MTR_DIMM_RANK(mtr) (((mtr) >> 4) & 0x1) +#define MTR_DIMM_RANK_ADDR_BITS(mtr) (MTR_DIMM_RANK(mtr) ? 2 : 1) +#define MTR_DIMM_ROWS(mtr) (((mtr) >> 2) & 0x3) +#define MTR_DIMM_ROWS_ADDR_BITS(mtr) (MTR_DIMM_ROWS(mtr) + 13) +#define MTR_DIMM_COLS(mtr) ((mtr) & 0x3) +#define MTR_DIMM_COLS_ADDR_BITS(mtr) (MTR_DIMM_COLS(mtr) + 10) + +#ifdef CONFIG_EDAC_DEBUG +static char *numrow_toString[] = { + "8,192 - 13 rows", + "16,384 - 14 rows", + "32,768 - 15 rows", + "reserved" +}; + +static char *numcol_toString[] = { + "1,024 - 10 columns", + "2,048 - 11 columns", + "4,096 - 12 columns", + "reserved" +}; +#endif + +/* Enumeration of supported devices */ +enum i5000_chips { + I5000P = 0, + I5000V = 1, /* future */ + I5000X = 2 /* future */ +}; + +/* Device name and register DID (Device ID) */ +struct i5000_dev_info { + const char *ctl_name; /* name for this device */ + u16 fsb_mapping_errors; /* DID for the branchmap,control */ +}; + +/* Table of devices attributes supported by this driver */ +static const struct i5000_dev_info i5000_devs[] = { + [I5000P] = { + .ctl_name = "I5000", + .fsb_mapping_errors = PCI_DEVICE_ID_INTEL_I5000_DEV16, + }, +}; + +struct i5000_dimm_info { + int megabytes; /* size, 0 means not present */ + int dual_rank; +}; + +#define MAX_CHANNELS 6 /* max possible channels */ +#define MAX_CSROWS (8*2) /* max possible csrows per channel */ + +/* driver private data structure */ +struct i5000_pvt { + struct pci_dev *system_address; /* 16.0 */ + struct pci_dev *branchmap_werrors; /* 16.1 */ + struct pci_dev *fsb_error_regs; /* 16.2 */ + struct pci_dev *branch_0; /* 21.0 */ + struct pci_dev *branch_1; /* 22.0 */ + + u16 tolm; /* top of low memory */ + u64 ambase; /* AMB BAR */ + + u16 mir0, mir1, mir2; + + u16 b0_mtr[NUM_MTRS]; /* Memory Technlogy Reg */ + u16 b0_ambpresent0; /* Branch 0, Channel 0 */ + u16 b0_ambpresent1; /* Brnach 0, Channel 1 */ + + u16 b1_mtr[NUM_MTRS]; /* Memory Technlogy Reg */ + u16 b1_ambpresent0; /* Branch 1, Channel 8 */ + u16 b1_ambpresent1; /* Branch 1, Channel 1 */ + + /* DIMM infomation matrix, allocating architecture maximums */ + struct i5000_dimm_info dimm_info[MAX_CSROWS][MAX_CHANNELS]; + + /* Actual values for this controller */ + int maxch; /* Max channels */ + int maxdimmperch; /* Max DIMMs per channel */ +}; + +/* I5000 MCH error information retrieved from Hardware */ +struct i5000_error_info { + + /* These registers are always read from the MC */ + u32 ferr_fat_fbd; /* First Errors Fatal */ + u32 nerr_fat_fbd; /* Next Errors Fatal */ + u32 ferr_nf_fbd; /* First Errors Non-Fatal */ + u32 nerr_nf_fbd; /* Next Errors Non-Fatal */ + + /* These registers are input ONLY if there was a Recoverable Error */ + u32 redmemb; /* Recoverable Mem Data Error log B */ + u16 recmema; /* Recoverable Mem Error log A */ + u32 recmemb; /* Recoverable Mem Error log B */ + + /* These registers are input ONLY if there was a + * Non-Recoverable Error */ + u16 nrecmema; /* Non-Recoverable Mem log A */ + u16 nrecmemb; /* Non-Recoverable Mem log B */ + +}; + +static struct edac_pci_ctl_info *i5000_pci; + +/* + * i5000_get_error_info Retrieve the hardware error information from + * the hardware and cache it in the 'info' + * structure + */ +static void i5000_get_error_info(struct mem_ctl_info *mci, + struct i5000_error_info *info) +{ + struct i5000_pvt *pvt; + u32 value; + + pvt = mci->pvt_info; + + /* read in the 1st FATAL error register */ + pci_read_config_dword(pvt->branchmap_werrors, FERR_FAT_FBD, &value); + + /* Mask only the bits that the doc says are valid + */ + value &= (FERR_FAT_FBDCHAN | FERR_FAT_MASK); + + /* If there is an error, then read in the */ + /* NEXT FATAL error register and the Memory Error Log Register A */ + if (value & FERR_FAT_MASK) { + info->ferr_fat_fbd = value; + + /* harvest the various error data we need */ + pci_read_config_dword(pvt->branchmap_werrors, + NERR_FAT_FBD, &info->nerr_fat_fbd); + pci_read_config_word(pvt->branchmap_werrors, + NRECMEMA, &info->nrecmema); + pci_read_config_word(pvt->branchmap_werrors, + NRECMEMB, &info->nrecmemb); + + /* Clear the error bits, by writing them back */ + pci_write_config_dword(pvt->branchmap_werrors, + FERR_FAT_FBD, value); + } else { + info->ferr_fat_fbd = 0; + info->nerr_fat_fbd = 0; + info->nrecmema = 0; + info->nrecmemb = 0; + } + + /* read in the 1st NON-FATAL error register */ + pci_read_config_dword(pvt->branchmap_werrors, FERR_NF_FBD, &value); + + /* If there is an error, then read in the 1st NON-FATAL error + * register as well */ + if (value & FERR_NF_MASK) { + info->ferr_nf_fbd = value; + + /* harvest the various error data we need */ + pci_read_config_dword(pvt->branchmap_werrors, + NERR_NF_FBD, &info->nerr_nf_fbd); + pci_read_config_word(pvt->branchmap_werrors, + RECMEMA, &info->recmema); + pci_read_config_dword(pvt->branchmap_werrors, + RECMEMB, &info->recmemb); + pci_read_config_dword(pvt->branchmap_werrors, + REDMEMB, &info->redmemb); + + /* Clear the error bits, by writing them back */ + pci_write_config_dword(pvt->branchmap_werrors, + FERR_NF_FBD, value); + } else { + info->ferr_nf_fbd = 0; + info->nerr_nf_fbd = 0; + info->recmema = 0; + info->recmemb = 0; + info->redmemb = 0; + } +} + +/* + * i5000_process_fatal_error_info(struct mem_ctl_info *mci, + * struct i5000_error_info *info, + * int handle_errors); + * + * handle the Intel FATAL errors, if any + */ +static void i5000_process_fatal_error_info(struct mem_ctl_info *mci, + struct i5000_error_info *info, + int handle_errors) +{ + char msg[EDAC_MC_LABEL_LEN + 1 + 90]; + u32 allErrors; + int branch; + int channel; + int bank; + int rank; + int rdwr; + int ras, cas; + + /* mask off the Error bits that are possible */ + allErrors = (info->ferr_fat_fbd & FERR_FAT_MASK); + if (!allErrors) + return; /* if no error, return now */ + + /* ONLY ONE of the possible error bits will be set, as per the docs */ + i5000_mc_printk(mci, KERN_ERR, + "FATAL ERRORS Found!!! 1st FATAL Err Reg= 0x%x\n", + allErrors); + + branch = EXTRACT_FBDCHAN_INDX(info->ferr_fat_fbd); + channel = branch; + + /* Use the NON-Recoverable macros to extract data */ + bank = NREC_BANK(info->nrecmema); + rank = NREC_RANK(info->nrecmema); + rdwr = NREC_RDWR(info->nrecmema); + ras = NREC_RAS(info->nrecmemb); + cas = NREC_CAS(info->nrecmemb); + + debugf0("\t\tCSROW= %d Channels= %d,%d (Branch= %d " + "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n", + rank, channel, channel + 1, branch >> 1, bank, + rdwr ? "Write" : "Read", ras, cas); + + /* Only 1 bit will be on */ + if (allErrors & FERR_FAT_M1ERR) { + i5000_mc_printk(mci, KERN_ERR, + "Alert on non-redundant retry or fast " + "reset timeout\n"); + + } else if (allErrors & FERR_FAT_M2ERR) { + i5000_mc_printk(mci, KERN_ERR, + "Northbound CRC error on non-redundant " + "retry\n"); + + } else if (allErrors & FERR_FAT_M3ERR) { + i5000_mc_printk(mci, KERN_ERR, + ">Tmid Thermal event with intelligent " + "throttling disabled\n"); + } + + /* Form out message */ + snprintf(msg, sizeof(msg), + "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d CAS=%d " + "FATAL Err=0x%x)", + branch >> 1, bank, rdwr ? "Write" : "Read", ras, cas, + allErrors); + + /* Call the helper to output message */ + edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg); +} + +/* + * i5000_process_fatal_error_info(struct mem_ctl_info *mci, + * struct i5000_error_info *info, + * int handle_errors); + * + * handle the Intel NON-FATAL errors, if any + */ +static void i5000_process_nonfatal_error_info(struct mem_ctl_info *mci, + struct i5000_error_info *info, + int handle_errors) +{ + char msg[EDAC_MC_LABEL_LEN + 1 + 90]; + u32 allErrors; + u32 ue_errors; + u32 ce_errors; + u32 misc_errors; + int branch; + int channel; + int bank; + int rank; + int rdwr; + int ras, cas; + + /* mask off the Error bits that are possible */ + allErrors = (info->ferr_nf_fbd & FERR_NF_MASK); + if (!allErrors) + return; /* if no error, return now */ + + /* ONLY ONE of the possible error bits will be set, as per the docs */ + i5000_mc_printk(mci, KERN_WARNING, + "NON-FATAL ERRORS Found!!! 1st NON-FATAL Err " + "Reg= 0x%x\n", allErrors); + + ue_errors = allErrors & FERR_NF_UNCORRECTABLE; + if (ue_errors) { + debugf0("\tUncorrected bits= 0x%x\n", ue_errors); + + branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd); + channel = branch; + bank = NREC_BANK(info->nrecmema); + rank = NREC_RANK(info->nrecmema); + rdwr = NREC_RDWR(info->nrecmema); + ras = NREC_RAS(info->nrecmemb); + cas = NREC_CAS(info->nrecmemb); + + debugf0 + ("\t\tCSROW= %d Channels= %d,%d (Branch= %d " + "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n", + rank, channel, channel + 1, branch >> 1, bank, + rdwr ? "Write" : "Read", ras, cas); + + /* Form out message */ + snprintf(msg, sizeof(msg), + "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d " + "CAS=%d, UE Err=0x%x)", + branch >> 1, bank, rdwr ? "Write" : "Read", ras, cas, + ue_errors); + + /* Call the helper to output message */ + edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg); + } + + /* Check correctable errors */ + ce_errors = allErrors & FERR_NF_CORRECTABLE; + if (ce_errors) { + debugf0("\tCorrected bits= 0x%x\n", ce_errors); + + branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd); + + channel = 0; + if (REC_ECC_LOCATOR_ODD(info->redmemb)) + channel = 1; + + /* Convert channel to be based from zero, instead of + * from branch base of 0 */ + channel += branch; + + bank = REC_BANK(info->recmema); + rank = REC_RANK(info->recmema); + rdwr = REC_RDWR(info->recmema); + ras = REC_RAS(info->recmemb); + cas = REC_CAS(info->recmemb); + + debugf0("\t\tCSROW= %d Channel= %d (Branch %d " + "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n", + rank, channel, branch >> 1, bank, + rdwr ? "Write" : "Read", ras, cas); + + /* Form out message */ + snprintf(msg, sizeof(msg), + "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d " + "CAS=%d, CE Err=0x%x)", branch >> 1, bank, + rdwr ? "Write" : "Read", ras, cas, ce_errors); + + /* Call the helper to output message */ + edac_mc_handle_fbd_ce(mci, rank, channel, msg); + } + + /* See if any of the thermal errors have fired */ + misc_errors = allErrors & FERR_NF_THERMAL; + if (misc_errors) { + i5000_printk(KERN_WARNING, "\tTHERMAL Error, bits= 0x%x\n", + misc_errors); + } + + /* See if any of the thermal errors have fired */ + misc_errors = allErrors & FERR_NF_NON_RETRY; + if (misc_errors) { + i5000_printk(KERN_WARNING, "\tNON-Retry Errors, bits= 0x%x\n", + misc_errors); + } + + /* See if any of the thermal errors have fired */ + misc_errors = allErrors & FERR_NF_NORTH_CRC; + if (misc_errors) { + i5000_printk(KERN_WARNING, + "\tNORTHBOUND CRC Error, bits= 0x%x\n", + misc_errors); + } + + /* See if any of the thermal errors have fired */ + misc_errors = allErrors & FERR_NF_SPD_PROTOCOL; + if (misc_errors) { + i5000_printk(KERN_WARNING, + "\tSPD Protocol Error, bits= 0x%x\n", + misc_errors); + } + + /* See if any of the thermal errors have fired */ + misc_errors = allErrors & FERR_NF_DIMM_SPARE; + if (misc_errors) { + i5000_printk(KERN_WARNING, "\tDIMM-Spare Error, bits= 0x%x\n", + misc_errors); + } +} + +/* + * i5000_process_error_info Process the error info that is + * in the 'info' structure, previously retrieved from hardware + */ +static void i5000_process_error_info(struct mem_ctl_info *mci, + struct i5000_error_info *info, + int handle_errors) +{ + /* First handle any fatal errors that occurred */ + i5000_process_fatal_error_info(mci, info, handle_errors); + + /* now handle any non-fatal errors that occurred */ + i5000_process_nonfatal_error_info(mci, info, handle_errors); +} + +/* + * i5000_clear_error Retrieve any error from the hardware + * but do NOT process that error. + * Used for 'clearing' out of previous errors + * Called by the Core module. + */ +static void i5000_clear_error(struct mem_ctl_info *mci) +{ + struct i5000_error_info info; + + i5000_get_error_info(mci, &info); +} + +/* + * i5000_check_error Retrieve and process errors reported by the + * hardware. Called by the Core module. + */ +static void i5000_check_error(struct mem_ctl_info *mci) +{ + struct i5000_error_info info; + debugf4("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__); + i5000_get_error_info(mci, &info); + i5000_process_error_info(mci, &info, 1); +} + +/* + * i5000_get_devices Find and perform 'get' operation on the MCH's + * device/functions we want to reference for this driver + * + * Need to 'get' device 16 func 1 and func 2 + */ +static int i5000_get_devices(struct mem_ctl_info *mci, int dev_idx) +{ + //const struct i5000_dev_info *i5000_dev = &i5000_devs[dev_idx]; + struct i5000_pvt *pvt; + struct pci_dev *pdev; + + pvt = mci->pvt_info; + + /* Attempt to 'get' the MCH register we want */ + pdev = NULL; + while (1) { + pdev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_I5000_DEV16, pdev); + + /* End of list, leave */ + if (pdev == NULL) { + i5000_printk(KERN_ERR, + "'system address,Process Bus' " + "device not found:" + "vendor 0x%x device 0x%x FUNC 1 " + "(broken BIOS?)\n", + PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_I5000_DEV16); + + return 1; + } + + /* Scan for device 16 func 1 */ + if (PCI_FUNC(pdev->devfn) == 1) + break; + } + + pvt->branchmap_werrors = pdev; + + /* Attempt to 'get' the MCH register we want */ + pdev = NULL; + while (1) { + pdev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_I5000_DEV16, pdev); + + if (pdev == NULL) { + i5000_printk(KERN_ERR, + "MC: 'branchmap,control,errors' " + "device not found:" + "vendor 0x%x device 0x%x Func 2 " + "(broken BIOS?)\n", + PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_I5000_DEV16); + + pci_dev_put(pvt->branchmap_werrors); + return 1; + } + + /* Scan for device 16 func 1 */ + if (PCI_FUNC(pdev->devfn) == 2) + break; + } + + pvt->fsb_error_regs = pdev; + + debugf1("System Address, processor bus- PCI Bus ID: %s %x:%x\n", + pci_name(pvt->system_address), + pvt->system_address->vendor, pvt->system_address->device); + debugf1("Branchmap, control and errors - PCI Bus ID: %s %x:%x\n", + pci_name(pvt->branchmap_werrors), + pvt->branchmap_werrors->vendor, pvt->branchmap_werrors->device); + debugf1("FSB Error Regs - PCI Bus ID: %s %x:%x\n", + pci_name(pvt->fsb_error_regs), + pvt->fsb_error_regs->vendor, pvt->fsb_error_regs->device); + + pdev = NULL; + pdev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_I5000_BRANCH_0, pdev); + + if (pdev == NULL) { + i5000_printk(KERN_ERR, + "MC: 'BRANCH 0' device not found:" + "vendor 0x%x device 0x%x Func 0 (broken BIOS?)\n", + PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_I5000_BRANCH_0); + + pci_dev_put(pvt->branchmap_werrors); + pci_dev_put(pvt->fsb_error_regs); + return 1; + } + + pvt->branch_0 = pdev; + + /* If this device claims to have more than 2 channels then + * fetch Branch 1's information + */ + if (pvt->maxch >= CHANNELS_PER_BRANCH) { + pdev = NULL; + pdev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_I5000_BRANCH_1, pdev); + + if (pdev == NULL) { + i5000_printk(KERN_ERR, + "MC: 'BRANCH 1' device not found:" + "vendor 0x%x device 0x%x Func 0 " + "(broken BIOS?)\n", + PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_I5000_BRANCH_1); + + pci_dev_put(pvt->branchmap_werrors); + pci_dev_put(pvt->fsb_error_regs); + pci_dev_put(pvt->branch_0); + return 1; + } + + pvt->branch_1 = pdev; + } + + return 0; +} + +/* + * i5000_put_devices 'put' all the devices that we have + * reserved via 'get' + */ +static void i5000_put_devices(struct mem_ctl_info *mci) +{ + struct i5000_pvt *pvt; + + pvt = mci->pvt_info; + + pci_dev_put(pvt->branchmap_werrors); /* FUNC 1 */ + pci_dev_put(pvt->fsb_error_regs); /* FUNC 2 */ + pci_dev_put(pvt->branch_0); /* DEV 21 */ + + /* Only if more than 2 channels do we release the second branch */ + if (pvt->maxch >= CHANNELS_PER_BRANCH) + pci_dev_put(pvt->branch_1); /* DEV 22 */ +} + +/* + * determine_amb_resent + * + * the information is contained in NUM_MTRS different registers + * determineing which of the NUM_MTRS requires knowing + * which channel is in question + * + * 2 branches, each with 2 channels + * b0_ambpresent0 for channel '0' + * b0_ambpresent1 for channel '1' + * b1_ambpresent0 for channel '2' + * b1_ambpresent1 for channel '3' + */ +static int determine_amb_present_reg(struct i5000_pvt *pvt, int channel) +{ + int amb_present; + + if (channel < CHANNELS_PER_BRANCH) { + if (channel & 0x1) + amb_present = pvt->b0_ambpresent1; + else + amb_present = pvt->b0_ambpresent0; + } else { + if (channel & 0x1) + amb_present = pvt->b1_ambpresent1; + else + amb_present = pvt->b1_ambpresent0; + } + + return amb_present; +} + +/* + * determine_mtr(pvt, csrow, channel) + * + * return the proper MTR register as determine by the csrow and channel desired + */ +static int determine_mtr(struct i5000_pvt *pvt, int csrow, int channel) +{ + int mtr; + + if (channel < CHANNELS_PER_BRANCH) + mtr = pvt->b0_mtr[csrow >> 1]; + else + mtr = pvt->b1_mtr[csrow >> 1]; + + return mtr; +} + +/* + */ +static void decode_mtr(int slot_row, u16 mtr) +{ + int ans; + + ans = MTR_DIMMS_PRESENT(mtr); + + debugf2("\tMTR%d=0x%x: DIMMs are %s\n", slot_row, mtr, + ans ? "Present" : "NOT Present"); + if (!ans) + return; + + debugf2("\t\tWIDTH: x%d\n", MTR_DRAM_WIDTH(mtr)); + debugf2("\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr)); + debugf2("\t\tNUMRANK: %s\n", MTR_DIMM_RANK(mtr) ? "double" : "single"); + debugf2("\t\tNUMROW: %s\n", numrow_toString[MTR_DIMM_ROWS(mtr)]); + debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]); +} + +static void handle_channel(struct i5000_pvt *pvt, int csrow, int channel, + struct i5000_dimm_info *dinfo) +{ + int mtr; + int amb_present_reg; + int addrBits; + + mtr = determine_mtr(pvt, csrow, channel); + if (MTR_DIMMS_PRESENT(mtr)) { + amb_present_reg = determine_amb_present_reg(pvt, channel); + + /* Determine if there is a DIMM present in this DIMM slot */ + if (amb_present_reg & (1 << (csrow >> 1))) { + dinfo->dual_rank = MTR_DIMM_RANK(mtr); + + if (!((dinfo->dual_rank == 0) && + ((csrow & 0x1) == 0x1))) { + /* Start with the number of bits for a Bank + * on the DRAM */ + addrBits = MTR_DRAM_BANKS_ADDR_BITS(mtr); + /* Add thenumber of ROW bits */ + addrBits += MTR_DIMM_ROWS_ADDR_BITS(mtr); + /* add the number of COLUMN bits */ + addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr); + + addrBits += 6; /* add 64 bits per DIMM */ + addrBits -= 20; /* divide by 2^^20 */ + addrBits -= 3; /* 8 bits per bytes */ + + dinfo->megabytes = 1 << addrBits; + } + } + } +} + +/* + * calculate_dimm_size + * + * also will output a DIMM matrix map, if debug is enabled, for viewing + * how the DIMMs are populated + */ +static void calculate_dimm_size(struct i5000_pvt *pvt) +{ + struct i5000_dimm_info *dinfo; + int csrow, max_csrows; + char *p, *mem_buffer; + int space, n; + int channel; + + /* ================= Generate some debug output ================= */ + space = PAGE_SIZE; + mem_buffer = p = kmalloc(space, GFP_KERNEL); + if (p == NULL) { + i5000_printk(KERN_ERR, "MC: %s:%s() kmalloc() failed\n", + __FILE__, __func__); + return; + } + + n = snprintf(p, space, "\n"); + p += n; + space -= n; + + /* Scan all the actual CSROWS (which is # of DIMMS * 2) + * and calculate the information for each DIMM + * Start with the highest csrow first, to display it first + * and work toward the 0th csrow + */ + max_csrows = pvt->maxdimmperch * 2; + for (csrow = max_csrows - 1; csrow >= 0; csrow--) { + + /* on an odd csrow, first output a 'boundary' marker, + * then reset the message buffer */ + if (csrow & 0x1) { + n = snprintf(p, space, "---------------------------" + "--------------------------------"); + p += n; + space -= n; + debugf2("%s\n", mem_buffer); + p = mem_buffer; + space = PAGE_SIZE; + } + n = snprintf(p, space, "csrow %2d ", csrow); + p += n; + space -= n; + + for (channel = 0; channel < pvt->maxch; channel++) { + dinfo = &pvt->dimm_info[csrow][channel]; + handle_channel(pvt, csrow, channel, dinfo); + n = snprintf(p, space, "%4d MB | ", dinfo->megabytes); + p += n; + space -= n; + } + n = snprintf(p, space, "\n"); + p += n; + space -= n; + } + + /* Output the last bottom 'boundary' marker */ + n = snprintf(p, space, "---------------------------" + "--------------------------------\n"); + p += n; + space -= n; + + /* now output the 'channel' labels */ + n = snprintf(p, space, " "); + p += n; + space -= n; + for (channel = 0; channel < pvt->maxch; channel++) { + n = snprintf(p, space, "channel %d | ", channel); + p += n; + space -= n; + } + n = snprintf(p, space, "\n"); + p += n; + space -= n; + + /* output the last message and free buffer */ + debugf2("%s\n", mem_buffer); + kfree(mem_buffer); +} + +/* + * i5000_get_mc_regs read in the necessary registers and + * cache locally + * + * Fills in the private data members + */ +static void i5000_get_mc_regs(struct mem_ctl_info *mci) +{ + struct i5000_pvt *pvt; + u32 actual_tolm; + u16 limit; + int slot_row; + int maxch; + int maxdimmperch; + int way0, way1; + + pvt = mci->pvt_info; + + pci_read_config_dword(pvt->system_address, AMBASE, + (u32 *) & pvt->ambase); + pci_read_config_dword(pvt->system_address, AMBASE + sizeof(u32), + ((u32 *) & pvt->ambase) + sizeof(u32)); + + maxdimmperch = pvt->maxdimmperch; + maxch = pvt->maxch; + + debugf2("AMBASE= 0x%lx MAXCH= %d MAX-DIMM-Per-CH= %d\n", + (long unsigned int)pvt->ambase, pvt->maxch, pvt->maxdimmperch); + + /* Get the Branch Map regs */ + pci_read_config_word(pvt->branchmap_werrors, TOLM, &pvt->tolm); + pvt->tolm >>= 12; + debugf2("\nTOLM (number of 256M regions) =%u (0x%x)\n", pvt->tolm, + pvt->tolm); + + actual_tolm = pvt->tolm << 28; + debugf2("Actual TOLM byte addr=%u (0x%x)\n", actual_tolm, actual_tolm); + + pci_read_config_word(pvt->branchmap_werrors, MIR0, &pvt->mir0); + pci_read_config_word(pvt->branchmap_werrors, MIR1, &pvt->mir1); + pci_read_config_word(pvt->branchmap_werrors, MIR2, &pvt->mir2); + + /* Get the MIR[0-2] regs */ + limit = (pvt->mir0 >> 4) & 0x0FFF; + way0 = pvt->mir0 & 0x1; + way1 = pvt->mir0 & 0x2; + debugf2("MIR0: limit= 0x%x WAY1= %u WAY0= %x\n", limit, way1, way0); + limit = (pvt->mir1 >> 4) & 0x0FFF; + way0 = pvt->mir1 & 0x1; + way1 = pvt->mir1 & 0x2; + debugf2("MIR1: limit= 0x%x WAY1= %u WAY0= %x\n", limit, way1, way0); + limit = (pvt->mir2 >> 4) & 0x0FFF; + way0 = pvt->mir2 & 0x1; + way1 = pvt->mir2 & 0x2; + debugf2("MIR2: limit= 0x%x WAY1= %u WAY0= %x\n", limit, way1, way0); + + /* Get the MTR[0-3] regs */ + for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) { + int where = MTR0 + (slot_row * sizeof(u32)); + + pci_read_config_word(pvt->branch_0, where, + &pvt->b0_mtr[slot_row]); + + debugf2("MTR%d where=0x%x B0 value=0x%x\n", slot_row, where, + pvt->b0_mtr[slot_row]); + + if (pvt->maxch >= CHANNELS_PER_BRANCH) { + pci_read_config_word(pvt->branch_1, where, + &pvt->b1_mtr[slot_row]); + debugf2("MTR%d where=0x%x B1 value=0x%x\n", slot_row, + where, pvt->b0_mtr[slot_row]); + } else { + pvt->b1_mtr[slot_row] = 0; + } + } + + /* Read and dump branch 0's MTRs */ + debugf2("\nMemory Technology Registers:\n"); + debugf2(" Branch 0:\n"); + for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) { + decode_mtr(slot_row, pvt->b0_mtr[slot_row]); + } + pci_read_config_word(pvt->branch_0, AMB_PRESENT_0, + &pvt->b0_ambpresent0); + debugf2("\t\tAMB-Branch 0-present0 0x%x:\n", pvt->b0_ambpresent0); + pci_read_config_word(pvt->branch_0, AMB_PRESENT_1, + &pvt->b0_ambpresent1); + debugf2("\t\tAMB-Branch 0-present1 0x%x:\n", pvt->b0_ambpresent1); + + /* Only if we have 2 branchs (4 channels) */ + if (pvt->maxch < CHANNELS_PER_BRANCH) { + pvt->b1_ambpresent0 = 0; + pvt->b1_ambpresent1 = 0; + } else { + /* Read and dump branch 1's MTRs */ + debugf2(" Branch 1:\n"); + for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) { + decode_mtr(slot_row, pvt->b1_mtr[slot_row]); + } + pci_read_config_word(pvt->branch_1, AMB_PRESENT_0, + &pvt->b1_ambpresent0); + debugf2("\t\tAMB-Branch 1-present0 0x%x:\n", + pvt->b1_ambpresent0); + pci_read_config_word(pvt->branch_1, AMB_PRESENT_1, + &pvt->b1_ambpresent1); + debugf2("\t\tAMB-Branch 1-present1 0x%x:\n", + pvt->b1_ambpresent1); + } + + /* Go and determine the size of each DIMM and place in an + * orderly matrix */ + calculate_dimm_size(pvt); +} + +/* + * i5000_init_csrows Initialize the 'csrows' table within + * the mci control structure with the + * addressing of memory. + * + * return: + * 0 success + * 1 no actual memory found on this MC + */ +static int i5000_init_csrows(struct mem_ctl_info *mci) +{ + struct i5000_pvt *pvt; + struct csrow_info *p_csrow; + int empty, channel_count; + int max_csrows; + int mtr; + int csrow_megs; + int channel; + int csrow; + + pvt = mci->pvt_info; + + channel_count = pvt->maxch; + max_csrows = pvt->maxdimmperch * 2; + + empty = 1; /* Assume NO memory */ + + for (csrow = 0; csrow < max_csrows; csrow++) { + p_csrow = &mci->csrows[csrow]; + + p_csrow->csrow_idx = csrow; + + /* use branch 0 for the basis */ + mtr = pvt->b0_mtr[csrow >> 1]; + + /* if no DIMMS on this row, continue */ + if (!MTR_DIMMS_PRESENT(mtr)) + continue; + + /* FAKE OUT VALUES, FIXME */ + p_csrow->first_page = 0 + csrow * 20; + p_csrow->last_page = 9 + csrow * 20; + p_csrow->page_mask = 0xFFF; + + p_csrow->grain = 8; + + csrow_megs = 0; + for (channel = 0; channel < pvt->maxch; channel++) { + csrow_megs += pvt->dimm_info[csrow][channel].megabytes; + } + + p_csrow->nr_pages = csrow_megs << 8; + + /* Assume DDR2 for now */ + p_csrow->mtype = MEM_FB_DDR2; + + /* ask what device type on this row */ + if (MTR_DRAM_WIDTH(mtr)) + p_csrow->dtype = DEV_X8; + else + p_csrow->dtype = DEV_X4; + + p_csrow->edac_mode = EDAC_S8ECD8ED; + + empty = 0; + } + + return empty; +} + +/* + * i5000_enable_error_reporting + * Turn on the memory reporting features of the hardware + */ +static void i5000_enable_error_reporting(struct mem_ctl_info *mci) +{ + struct i5000_pvt *pvt; + u32 fbd_error_mask; + + pvt = mci->pvt_info; + + /* Read the FBD Error Mask Register */ + pci_read_config_dword(pvt->branchmap_werrors, EMASK_FBD, + &fbd_error_mask); + + /* Enable with a '0' */ + fbd_error_mask &= ~(ENABLE_EMASK_ALL); + + pci_write_config_dword(pvt->branchmap_werrors, EMASK_FBD, + fbd_error_mask); +} + +/* + * i5000_get_dimm_and_channel_counts(pdev, &num_csrows, &num_channels) + * + * ask the device how many channels are present and how many CSROWS + * as well + */ +static void i5000_get_dimm_and_channel_counts(struct pci_dev *pdev, + int *num_dimms_per_channel, + int *num_channels) +{ + u8 value; + + /* Need to retrieve just how many channels and dimms per channel are + * supported on this memory controller + */ + pci_read_config_byte(pdev, MAXDIMMPERCH, &value); + *num_dimms_per_channel = (int)value *2; + + pci_read_config_byte(pdev, MAXCH, &value); + *num_channels = (int)value; +} + +/* + * i5000_probe1 Probe for ONE instance of device to see if it is + * present. + * return: + * 0 for FOUND a device + * < 0 for error code + */ +static int i5000_probe1(struct pci_dev *pdev, int dev_idx) +{ + struct mem_ctl_info *mci; + struct i5000_pvt *pvt; + int num_channels; + int num_dimms_per_channel; + int num_csrows; + + debugf0("MC: " __FILE__ ": %s(), pdev bus %u dev=0x%x fn=0x%x\n", + __func__, + pdev->bus->number, + PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); + + /* We only are looking for func 0 of the set */ + if (PCI_FUNC(pdev->devfn) != 0) + return -ENODEV; + + /* make sure error reporting method is sane */ + switch (edac_op_state) { + case EDAC_OPSTATE_POLL: + case EDAC_OPSTATE_NMI: + break; + default: + edac_op_state = EDAC_OPSTATE_POLL; + break; + } + + /* Ask the devices for the number of CSROWS and CHANNELS so + * that we can calculate the memory resources, etc + * + * The Chipset will report what it can handle which will be greater + * or equal to what the motherboard manufacturer will implement. + * + * As we don't have a motherboard identification routine to determine + * actual number of slots/dimms per channel, we thus utilize the + * resource as specified by the chipset. Thus, we might have + * have more DIMMs per channel than actually on the mobo, but this + * allows the driver to support upto the chipset max, without + * some fancy mobo determination. + */ + i5000_get_dimm_and_channel_counts(pdev, &num_dimms_per_channel, + &num_channels); + num_csrows = num_dimms_per_channel * 2; + + debugf0("MC: %s(): Number of - Channels= %d DIMMS= %d CSROWS= %d\n", + __func__, num_channels, num_dimms_per_channel, num_csrows); + + /* allocate a new MC control structure */ + mci = edac_mc_alloc(sizeof(*pvt), num_csrows, num_channels, 0); + + if (mci == NULL) + return -ENOMEM; + + debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci); + + mci->dev = &pdev->dev; /* record ptr to the generic device */ + + pvt = mci->pvt_info; + pvt->system_address = pdev; /* Record this device in our private */ + pvt->maxch = num_channels; + pvt->maxdimmperch = num_dimms_per_channel; + + /* 'get' the pci devices we want to reserve for our use */ + if (i5000_get_devices(mci, dev_idx)) + goto fail0; + + /* Time to get serious */ + i5000_get_mc_regs(mci); /* retrieve the hardware registers */ + + mci->mc_idx = 0; + mci->mtype_cap = MEM_FLAG_FB_DDR2; + mci->edac_ctl_cap = EDAC_FLAG_NONE; + mci->edac_cap = EDAC_FLAG_NONE; + mci->mod_name = "i5000_edac.c"; + mci->mod_ver = I5000_REVISION; + mci->ctl_name = i5000_devs[dev_idx].ctl_name; + mci->dev_name = pci_name(pdev); + mci->ctl_page_to_phys = NULL; + + /* Set the function pointer to an actual operation function */ + mci->edac_check = i5000_check_error; + + /* initialize the MC control structure 'csrows' table + * with the mapping and control information */ + if (i5000_init_csrows(mci)) { + debugf0("MC: Setting mci->edac_cap to EDAC_FLAG_NONE\n" + " because i5000_init_csrows() returned nonzero " + "value\n"); + mci->edac_cap = EDAC_FLAG_NONE; /* no csrows found */ + } else { + debugf1("MC: Enable error reporting now\n"); + i5000_enable_error_reporting(mci); + } + + /* add this new MC control structure to EDAC's list of MCs */ + if (edac_mc_add_mc(mci)) { + debugf0("MC: " __FILE__ + ": %s(): failed edac_mc_add_mc()\n", __func__); + /* FIXME: perhaps some code should go here that disables error + * reporting if we just enabled it + */ + goto fail1; + } + + i5000_clear_error(mci); + + /* allocating generic PCI control info */ + i5000_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!i5000_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + + return 0; + + /* Error exit unwinding stack */ +fail1: + + i5000_put_devices(mci); + +fail0: + edac_mc_free(mci); + return -ENODEV; +} + +/* + * i5000_init_one constructor for one instance of device + * + * returns: + * negative on error + * count (>= 0) + */ +static int __devinit i5000_init_one(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + int rc; + + debugf0("MC: " __FILE__ ": %s()\n", __func__); + + /* wake up device */ + rc = pci_enable_device(pdev); + if (rc == -EIO) + return rc; + + /* now probe and enable the device */ + return i5000_probe1(pdev, id->driver_data); +} + +/* + * i5000_remove_one destructor for one instance of device + * + */ +static void __devexit i5000_remove_one(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci; + + debugf0(__FILE__ ": %s()\n", __func__); + + if (i5000_pci) + edac_pci_release_generic_ctl(i5000_pci); + + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) + return; + + /* retrieve references to resources, and free those resources */ + i5000_put_devices(mci); + + edac_mc_free(mci); +} + +/* + * pci_device_id table for which devices we are looking for + * + * The "E500P" device is the first device supported. + */ +static const struct pci_device_id i5000_pci_tbl[] __devinitdata = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I5000_DEV16), + .driver_data = I5000P}, + + {0,} /* 0 terminated list. */ +}; + +MODULE_DEVICE_TABLE(pci, i5000_pci_tbl); + +/* + * i5000_driver pci_driver structure for this module + * + */ +static struct pci_driver i5000_driver = { + .name = __stringify(KBUILD_BASENAME), + .probe = i5000_init_one, + .remove = __devexit_p(i5000_remove_one), + .id_table = i5000_pci_tbl, +}; + +/* + * i5000_init Module entry function + * Try to initialize this module for its devices + */ +static int __init i5000_init(void) +{ + int pci_rc; + + debugf2("MC: " __FILE__ ": %s()\n", __func__); + + pci_rc = pci_register_driver(&i5000_driver); + + return (pci_rc < 0) ? pci_rc : 0; +} + +/* + * i5000_exit() Module exit function + * Unregister the driver + */ +static void __exit i5000_exit(void) +{ + debugf2("MC: " __FILE__ ": %s()\n", __func__); + pci_unregister_driver(&i5000_driver); +} + +module_init(i5000_init); +module_exit(i5000_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR + ("Linux Networx (http://lnxi.com) Doug Thompson <norsk5@xmission.com>"); +MODULE_DESCRIPTION("MC Driver for Intel I5000 memory controllers - " + I5000_REVISION); +module_param(edac_op_state, int, 0444); +MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); diff --git a/drivers/edac/i82443bxgx_edac.c b/drivers/edac/i82443bxgx_edac.c new file mode 100644 index 000000000000..83bfe37c4bbb --- /dev/null +++ b/drivers/edac/i82443bxgx_edac.c @@ -0,0 +1,402 @@ +/* + * Intel 82443BX/GX (440BX/GX chipset) Memory Controller EDAC kernel + * module (C) 2006 Tim Small + * + * This file may be distributed under the terms of the GNU General + * Public License. + * + * Written by Tim Small <tim@buttersideup.com>, based on work by Linux + * Networx, Thayne Harbaugh, Dan Hollis <goemon at anime dot net> and + * others. + * + * 440GX fix by Jason Uhlenkott <juhlenko@akamai.com>. + * + * Written with reference to 82443BX Host Bridge Datasheet: + * http://www.intel.com/design/chipsets/440/documentation.htm + * references to this document given in []. + * + * This module doesn't support the 440LX, but it may be possible to + * make it do so (the 440LX's register definitions are different, but + * not completely so - I haven't studied them in enough detail to know + * how easy this would be). + */ + +#include <linux/module.h> +#include <linux/init.h> + +#include <linux/pci.h> +#include <linux/pci_ids.h> + +#include <linux/slab.h> + +#include "edac_core.h" + +#define I82443_REVISION "0.1" + +#define EDAC_MOD_STR "i82443bxgx_edac" + +/* The 82443BX supports SDRAM, or EDO (EDO for mobile only), "Memory + * Size: 8 MB to 512 MB (1GB with Registered DIMMs) with eight memory + * rows" "The 82443BX supports multiple-bit error detection and + * single-bit error correction when ECC mode is enabled and + * single/multi-bit error detection when correction is disabled. + * During writes to the DRAM, the 82443BX generates ECC for the data + * on a QWord basis. Partial QWord writes require a read-modify-write + * cycle when ECC is enabled." +*/ + +/* "Additionally, the 82443BX ensures that the data is corrected in + * main memory so that accumulation of errors is prevented. Another + * error within the same QWord would result in a double-bit error + * which is unrecoverable. This is known as hardware scrubbing since + * it requires no software intervention to correct the data in memory." + */ + +/* [Also see page 100 (section 4.3), "DRAM Interface"] + * [Also see page 112 (section 4.6.1.4), ECC] + */ + +#define I82443BXGX_NR_CSROWS 8 +#define I82443BXGX_NR_CHANS 1 +#define I82443BXGX_NR_DIMMS 4 + +/* 82443 PCI Device 0 */ +#define I82443BXGX_NBXCFG 0x50 /* 32bit register starting at this PCI + * config space offset */ +#define I82443BXGX_NBXCFG_OFFSET_NON_ECCROW 24 /* Array of bits, zero if + * row is non-ECC */ +#define I82443BXGX_NBXCFG_OFFSET_DRAM_FREQ 12 /* 2 bits,00=100MHz,10=66 MHz */ + +#define I82443BXGX_NBXCFG_OFFSET_DRAM_INTEGRITY 7 /* 2 bits: */ +#define I82443BXGX_NBXCFG_INTEGRITY_NONE 0x0 /* 00 = Non-ECC */ +#define I82443BXGX_NBXCFG_INTEGRITY_EC 0x1 /* 01 = EC (only) */ +#define I82443BXGX_NBXCFG_INTEGRITY_ECC 0x2 /* 10 = ECC */ +#define I82443BXGX_NBXCFG_INTEGRITY_SCRUB 0x3 /* 11 = ECC + HW Scrub */ + +#define I82443BXGX_NBXCFG_OFFSET_ECC_DIAG_ENABLE 6 + +/* 82443 PCI Device 0 */ +#define I82443BXGX_EAP 0x80 /* 32bit register starting at this PCI + * config space offset, Error Address + * Pointer Register */ +#define I82443BXGX_EAP_OFFSET_EAP 12 /* High 20 bits of error address */ +#define I82443BXGX_EAP_OFFSET_MBE BIT(1) /* Err at EAP was multi-bit (W1TC) */ +#define I82443BXGX_EAP_OFFSET_SBE BIT(0) /* Err at EAP was single-bit (W1TC) */ + +#define I82443BXGX_ERRCMD 0x90 /* 8bit register starting at this PCI + * config space offset. */ +#define I82443BXGX_ERRCMD_OFFSET_SERR_ON_MBE BIT(1) /* 1 = enable */ +#define I82443BXGX_ERRCMD_OFFSET_SERR_ON_SBE BIT(0) /* 1 = enable */ + +#define I82443BXGX_ERRSTS 0x91 /* 16bit register starting at this PCI + * config space offset. */ +#define I82443BXGX_ERRSTS_OFFSET_MBFRE 5 /* 3 bits - first err row multibit */ +#define I82443BXGX_ERRSTS_OFFSET_MEF BIT(4) /* 1 = MBE occurred */ +#define I82443BXGX_ERRSTS_OFFSET_SBFRE 1 /* 3 bits - first err row singlebit */ +#define I82443BXGX_ERRSTS_OFFSET_SEF BIT(0) /* 1 = SBE occurred */ + +#define I82443BXGX_DRAMC 0x57 /* 8bit register starting at this PCI + * config space offset. */ +#define I82443BXGX_DRAMC_OFFSET_DT 3 /* 2 bits, DRAM Type */ +#define I82443BXGX_DRAMC_DRAM_IS_EDO 0 /* 00 = EDO */ +#define I82443BXGX_DRAMC_DRAM_IS_SDRAM 1 /* 01 = SDRAM */ +#define I82443BXGX_DRAMC_DRAM_IS_RSDRAM 2 /* 10 = Registered SDRAM */ + +#define I82443BXGX_DRB 0x60 /* 8x 8bit registers starting at this PCI + * config space offset. */ + +/* FIXME - don't poll when ECC disabled? */ + +struct i82443bxgx_edacmc_error_info { + u32 eap; +}; + +static struct edac_pci_ctl_info *i82443bxgx_pci; + +static void i82443bxgx_edacmc_get_error_info(struct mem_ctl_info *mci, + struct i82443bxgx_edacmc_error_info + *info) +{ + struct pci_dev *pdev; + pdev = to_pci_dev(mci->dev); + pci_read_config_dword(pdev, I82443BXGX_EAP, &info->eap); + if (info->eap & I82443BXGX_EAP_OFFSET_SBE) + /* Clear error to allow next error to be reported [p.61] */ + pci_write_bits32(pdev, I82443BXGX_EAP, + I82443BXGX_EAP_OFFSET_SBE, + I82443BXGX_EAP_OFFSET_SBE); + + if (info->eap & I82443BXGX_EAP_OFFSET_MBE) + /* Clear error to allow next error to be reported [p.61] */ + pci_write_bits32(pdev, I82443BXGX_EAP, + I82443BXGX_EAP_OFFSET_MBE, + I82443BXGX_EAP_OFFSET_MBE); +} + +static int i82443bxgx_edacmc_process_error_info(struct mem_ctl_info *mci, + struct + i82443bxgx_edacmc_error_info + *info, int handle_errors) +{ + int error_found = 0; + u32 eapaddr, page, pageoffset; + + /* bits 30:12 hold the 4kb block in which the error occurred + * [p.61] */ + eapaddr = (info->eap & 0xfffff000); + page = eapaddr >> PAGE_SHIFT; + pageoffset = eapaddr - (page << PAGE_SHIFT); + + if (info->eap & I82443BXGX_EAP_OFFSET_SBE) { + error_found = 1; + if (handle_errors) + edac_mc_handle_ce(mci, page, pageoffset, + /* 440BX/GX don't make syndrome information + * available */ + 0, edac_mc_find_csrow_by_page(mci, page), 0, + mci->ctl_name); + } + + if (info->eap & I82443BXGX_EAP_OFFSET_MBE) { + error_found = 1; + if (handle_errors) + edac_mc_handle_ue(mci, page, pageoffset, + edac_mc_find_csrow_by_page(mci, page), + mci->ctl_name); + } + + return error_found; +} + +static void i82443bxgx_edacmc_check(struct mem_ctl_info *mci) +{ + struct i82443bxgx_edacmc_error_info info; + + debugf1("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__); + i82443bxgx_edacmc_get_error_info(mci, &info); + i82443bxgx_edacmc_process_error_info(mci, &info, 1); +} + +static void i82443bxgx_init_csrows(struct mem_ctl_info *mci, + struct pci_dev *pdev, + enum edac_type edac_mode, + enum mem_type mtype) +{ + struct csrow_info *csrow; + int index; + u8 drbar, dramc; + u32 row_base, row_high_limit, row_high_limit_last; + + pci_read_config_byte(pdev, I82443BXGX_DRAMC, &dramc); + row_high_limit_last = 0; + for (index = 0; index < mci->nr_csrows; index++) { + csrow = &mci->csrows[index]; + pci_read_config_byte(pdev, I82443BXGX_DRB + index, &drbar); + debugf1("MC%d: " __FILE__ ": %s() Row=%d DRB = %#0x\n", + mci->mc_idx, __func__, index, drbar); + row_high_limit = ((u32) drbar << 23); + /* find the DRAM Chip Select Base address and mask */ + debugf1("MC%d: " __FILE__ ": %s() Row=%d, " + "Boundry Address=%#0x, Last = %#0x \n", + mci->mc_idx, __func__, index, row_high_limit, + row_high_limit_last); + + /* 440GX goes to 2GB, represented with a DRB of 0. */ + if (row_high_limit_last && !row_high_limit) + row_high_limit = 1UL << 31; + + /* This row is empty [p.49] */ + if (row_high_limit == row_high_limit_last) + continue; + row_base = row_high_limit_last; + csrow->first_page = row_base >> PAGE_SHIFT; + csrow->last_page = (row_high_limit >> PAGE_SHIFT) - 1; + csrow->nr_pages = csrow->last_page - csrow->first_page + 1; + /* EAP reports in 4kilobyte granularity [61] */ + csrow->grain = 1 << 12; + csrow->mtype = mtype; + /* I don't think 440BX can tell you device type? FIXME? */ + csrow->dtype = DEV_UNKNOWN; + /* Mode is global to all rows on 440BX */ + csrow->edac_mode = edac_mode; + row_high_limit_last = row_high_limit; + } +} + +static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx) +{ + struct mem_ctl_info *mci; + u8 dramc; + u32 nbxcfg, ecc_mode; + enum mem_type mtype; + enum edac_type edac_mode; + + debugf0("MC: " __FILE__ ": %s()\n", __func__); + + /* Something is really hosed if PCI config space reads from + * the MC aren't working. + */ + if (pci_read_config_dword(pdev, I82443BXGX_NBXCFG, &nbxcfg)) + return -EIO; + + mci = edac_mc_alloc(0, I82443BXGX_NR_CSROWS, I82443BXGX_NR_CHANS, 0); + + if (mci == NULL) + return -ENOMEM; + + debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci); + mci->dev = &pdev->dev; + mci->mtype_cap = MEM_FLAG_EDO | MEM_FLAG_SDR | MEM_FLAG_RDR; + mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED; + pci_read_config_byte(pdev, I82443BXGX_DRAMC, &dramc); + switch ((dramc >> I82443BXGX_DRAMC_OFFSET_DT) & (BIT(0) | BIT(1))) { + case I82443BXGX_DRAMC_DRAM_IS_EDO: + mtype = MEM_EDO; + break; + case I82443BXGX_DRAMC_DRAM_IS_SDRAM: + mtype = MEM_SDR; + break; + case I82443BXGX_DRAMC_DRAM_IS_RSDRAM: + mtype = MEM_RDR; + break; + default: + debugf0("Unknown/reserved DRAM type value " + "in DRAMC register!\n"); + mtype = -MEM_UNKNOWN; + } + + if ((mtype == MEM_SDR) || (mtype == MEM_RDR)) + mci->edac_cap = mci->edac_ctl_cap; + else + mci->edac_cap = EDAC_FLAG_NONE; + + mci->scrub_cap = SCRUB_FLAG_HW_SRC; + pci_read_config_dword(pdev, I82443BXGX_NBXCFG, &nbxcfg); + ecc_mode = ((nbxcfg >> I82443BXGX_NBXCFG_OFFSET_DRAM_INTEGRITY) & + (BIT(0) | BIT(1))); + + mci->scrub_mode = (ecc_mode == I82443BXGX_NBXCFG_INTEGRITY_SCRUB) + ? SCRUB_HW_SRC : SCRUB_NONE; + + switch (ecc_mode) { + case I82443BXGX_NBXCFG_INTEGRITY_NONE: + edac_mode = EDAC_NONE; + break; + case I82443BXGX_NBXCFG_INTEGRITY_EC: + edac_mode = EDAC_EC; + break; + case I82443BXGX_NBXCFG_INTEGRITY_ECC: + case I82443BXGX_NBXCFG_INTEGRITY_SCRUB: + edac_mode = EDAC_SECDED; + break; + default: + debugf0("%s(): Unknown/reserved ECC state " + "in NBXCFG register!\n", __func__); + edac_mode = EDAC_UNKNOWN; + break; + } + + i82443bxgx_init_csrows(mci, pdev, edac_mode, mtype); + + /* Many BIOSes don't clear error flags on boot, so do this + * here, or we get "phantom" errors occuring at module-load + * time. */ + pci_write_bits32(pdev, I82443BXGX_EAP, + (I82443BXGX_EAP_OFFSET_SBE | + I82443BXGX_EAP_OFFSET_MBE), + (I82443BXGX_EAP_OFFSET_SBE | + I82443BXGX_EAP_OFFSET_MBE)); + + mci->mod_name = EDAC_MOD_STR; + mci->mod_ver = I82443_REVISION; + mci->ctl_name = "I82443BXGX"; + mci->dev_name = pci_name(pdev); + mci->edac_check = i82443bxgx_edacmc_check; + mci->ctl_page_to_phys = NULL; + + if (edac_mc_add_mc(mci)) { + debugf3("%s(): failed edac_mc_add_mc()\n", __func__); + goto fail; + } + + /* allocating generic PCI control info */ + i82443bxgx_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!i82443bxgx_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + + debugf3("MC: " __FILE__ ": %s(): success\n", __func__); + return 0; + +fail: + edac_mc_free(mci); + return -ENODEV; +} + +EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_probe1); + +/* returns count (>= 0), or negative on error */ +static int __devinit i82443bxgx_edacmc_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + debugf0("MC: " __FILE__ ": %s()\n", __func__); + + /* don't need to call pci_device_enable() */ + return i82443bxgx_edacmc_probe1(pdev, ent->driver_data); +} + +static void __devexit i82443bxgx_edacmc_remove_one(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci; + + debugf0(__FILE__ ": %s()\n", __func__); + + if (i82443bxgx_pci) + edac_pci_release_generic_ctl(i82443bxgx_pci); + + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) + return; + + edac_mc_free(mci); +} + +EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_remove_one); + +static const struct pci_device_id i82443bxgx_pci_tbl[] __devinitdata = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2)}, + {0,} /* 0 terminated list. */ +}; + +MODULE_DEVICE_TABLE(pci, i82443bxgx_pci_tbl); + +static struct pci_driver i82443bxgx_edacmc_driver = { + .name = EDAC_MOD_STR, + .probe = i82443bxgx_edacmc_init_one, + .remove = __devexit_p(i82443bxgx_edacmc_remove_one), + .id_table = i82443bxgx_pci_tbl, +}; + +static int __init i82443bxgx_edacmc_init(void) +{ + return pci_register_driver(&i82443bxgx_edacmc_driver); +} + +static void __exit i82443bxgx_edacmc_exit(void) +{ + pci_unregister_driver(&i82443bxgx_edacmc_driver); +} + +module_init(i82443bxgx_edacmc_init); +module_exit(i82443bxgx_edacmc_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Tim Small <tim@buttersideup.com> - WPAD"); +MODULE_DESCRIPTION("EDAC MC support for Intel 82443BX/GX memory controllers"); diff --git a/drivers/edac/i82860_edac.c b/drivers/edac/i82860_edac.c index e4bb298e613f..f5ecd2c4d813 100644 --- a/drivers/edac/i82860_edac.c +++ b/drivers/edac/i82860_edac.c @@ -14,9 +14,9 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include "edac_mc.h" +#include "edac_core.h" -#define I82860_REVISION " Ver: 2.0.1 " __DATE__ +#define I82860_REVISION " Ver: 2.0.2 " __DATE__ #define EDAC_MOD_STR "i82860_edac" #define i82860_printk(level, fmt, arg...) \ @@ -54,16 +54,16 @@ struct i82860_error_info { static const struct i82860_dev_info i82860_devs[] = { [I82860] = { - .ctl_name = "i82860" - }, + .ctl_name = "i82860"}, }; -static struct pci_dev *mci_pdev = NULL; /* init dev: in case that AGP code +static struct pci_dev *mci_pdev; /* init dev: in case that AGP code * has already registered driver */ +static struct edac_pci_ctl_info *i82860_pci; static void i82860_get_error_info(struct mem_ctl_info *mci, - struct i82860_error_info *info) + struct i82860_error_info *info) { struct pci_dev *pdev; @@ -91,13 +91,13 @@ static void i82860_get_error_info(struct mem_ctl_info *mci, if ((info->errsts ^ info->errsts2) & 0x0003) { pci_read_config_dword(pdev, I82860_EAP, &info->eap); - pci_read_config_word(pdev, I82860_DERRCTL_STS, - &info->derrsyn); + pci_read_config_word(pdev, I82860_DERRCTL_STS, &info->derrsyn); } } static int i82860_process_error_info(struct mem_ctl_info *mci, - struct i82860_error_info *info, int handle_errors) + struct i82860_error_info *info, + int handle_errors) { int row; @@ -136,7 +136,7 @@ static void i82860_check(struct mem_ctl_info *mci) static void i82860_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev) { unsigned long last_cumul_size; - u16 mchcfg_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */ + u16 mchcfg_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */ u16 value; u32 cumul_size; struct csrow_info *csrow; @@ -155,7 +155,7 @@ static void i82860_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev) csrow = &mci->csrows[index]; pci_read_config_word(pdev, I82860_GBA + index * 2, &value); cumul_size = (value & I82860_GBA_MASK) << - (I82860_GBA_SHIFT - PAGE_SHIFT); + (I82860_GBA_SHIFT - PAGE_SHIFT); debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index, cumul_size); @@ -186,7 +186,7 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx) the channel and the GRA registers map to physical devices so we are going to make 1 channel for group. */ - mci = edac_mc_alloc(0, 16, 1); + mci = edac_mc_alloc(0, 16, 1, 0); if (!mci) return -ENOMEM; @@ -200,19 +200,31 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx) mci->mod_name = EDAC_MOD_STR; mci->mod_ver = I82860_REVISION; mci->ctl_name = i82860_devs[dev_idx].ctl_name; + mci->dev_name = pci_name(pdev); mci->edac_check = i82860_check; mci->ctl_page_to_phys = NULL; i82860_init_csrows(mci, pdev); - i82860_get_error_info(mci, &discard); /* clear counters */ + i82860_get_error_info(mci, &discard); /* clear counters */ /* Here we assume that we will never see multiple instances of this * type of memory controller. The ID is therefore hardcoded to 0. */ - if (edac_mc_add_mc(mci,0)) { + if (edac_mc_add_mc(mci)) { debugf3("%s(): failed edac_mc_add_mc()\n", __func__); goto fail; } + /* allocating generic PCI control info */ + i82860_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!i82860_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + /* get this far and it's successful */ debugf3("%s(): success\n", __func__); @@ -225,7 +237,7 @@ fail: /* returns count (>= 0), or negative on error */ static int __devinit i82860_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { int rc; @@ -249,6 +261,9 @@ static void __devexit i82860_remove_one(struct pci_dev *pdev) debugf0("%s()\n", __func__); + if (i82860_pci) + edac_pci_release_generic_ctl(i82860_pci); + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) return; @@ -257,12 +272,11 @@ static void __devexit i82860_remove_one(struct pci_dev *pdev) static const struct pci_device_id i82860_pci_tbl[] __devinitdata = { { - PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - I82860 - }, + PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I82860}, { - 0, - } /* 0 terminated list. */ + 0, + } /* 0 terminated list. */ }; MODULE_DEVICE_TABLE(pci, i82860_pci_tbl); @@ -329,5 +343,5 @@ module_exit(i82860_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com) " - "Ben Woodard <woodard@redhat.com>"); + "Ben Woodard <woodard@redhat.com>"); MODULE_DESCRIPTION("ECC support for Intel 82860 memory hub controllers"); diff --git a/drivers/edac/i82875p_edac.c b/drivers/edac/i82875p_edac.c index 2800b3e614a9..031abadc439a 100644 --- a/drivers/edac/i82875p_edac.c +++ b/drivers/edac/i82875p_edac.c @@ -18,9 +18,9 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include "edac_mc.h" +#include "edac_core.h" -#define I82875P_REVISION " Ver: 2.0.1 " __DATE__ +#define I82875P_REVISION " Ver: 2.0.2 " __DATE__ #define EDAC_MOD_STR "i82875p_edac" #define i82875p_printk(level, fmt, arg...) \ @@ -174,18 +174,19 @@ struct i82875p_error_info { static const struct i82875p_dev_info i82875p_devs[] = { [I82875P] = { - .ctl_name = "i82875p" - }, + .ctl_name = "i82875p"}, }; -static struct pci_dev *mci_pdev = NULL; /* init dev: in case that AGP code has +static struct pci_dev *mci_pdev; /* init dev: in case that AGP code has * already registered driver */ static int i82875p_registered = 1; +static struct edac_pci_ctl_info *i82875p_pci; + static void i82875p_get_error_info(struct mem_ctl_info *mci, - struct i82875p_error_info *info) + struct i82875p_error_info *info) { struct pci_dev *pdev; @@ -197,38 +198,39 @@ static void i82875p_get_error_info(struct mem_ctl_info *mci, * overwritten by UE. */ pci_read_config_word(pdev, I82875P_ERRSTS, &info->errsts); + + if (!(info->errsts & 0x0081)) + return; + pci_read_config_dword(pdev, I82875P_EAP, &info->eap); pci_read_config_byte(pdev, I82875P_DES, &info->des); pci_read_config_byte(pdev, I82875P_DERRSYN, &info->derrsyn); pci_read_config_word(pdev, I82875P_ERRSTS, &info->errsts2); - pci_write_bits16(pdev, I82875P_ERRSTS, 0x0081, 0x0081); - /* * If the error is the same then we can for both reads then * the first set of reads is valid. If there is a change then * there is a CE no info and the second set of reads is valid * and should be UE info. */ - if (!(info->errsts2 & 0x0081)) - return; - if ((info->errsts ^ info->errsts2) & 0x0081) { pci_read_config_dword(pdev, I82875P_EAP, &info->eap); pci_read_config_byte(pdev, I82875P_DES, &info->des); - pci_read_config_byte(pdev, I82875P_DERRSYN, - &info->derrsyn); + pci_read_config_byte(pdev, I82875P_DERRSYN, &info->derrsyn); } + + pci_write_bits16(pdev, I82875P_ERRSTS, 0x0081, 0x0081); } static int i82875p_process_error_info(struct mem_ctl_info *mci, - struct i82875p_error_info *info, int handle_errors) + struct i82875p_error_info *info, + int handle_errors) { int row, multi_chan; multi_chan = mci->csrows[0].nr_channels - 1; - if (!(info->errsts2 & 0x0081)) + if (!(info->errsts & 0x0081)) return 0; if (!handle_errors) @@ -263,10 +265,12 @@ static void i82875p_check(struct mem_ctl_info *mci) /* Return 0 on success or 1 on failure. */ static int i82875p_setup_overfl_dev(struct pci_dev *pdev, - struct pci_dev **ovrfl_pdev, void __iomem **ovrfl_window) + struct pci_dev **ovrfl_pdev, + void __iomem **ovrfl_window) { struct pci_dev *dev; void __iomem *window; + int err; *ovrfl_pdev = NULL; *ovrfl_window = NULL; @@ -284,14 +288,19 @@ static int i82875p_setup_overfl_dev(struct pci_dev *pdev, if (dev == NULL) return 1; - pci_bus_add_device(dev); + err = pci_bus_add_device(dev); + if (err) { + i82875p_printk(KERN_ERR, + "%s(): pci_bus_add_device() Failed\n", + __func__); + } } *ovrfl_pdev = dev; if (pci_enable_device(dev)) { i82875p_printk(KERN_ERR, "%s(): Failed to enable overflow " - "device\n", __func__); + "device\n", __func__); return 1; } @@ -307,7 +316,7 @@ static int i82875p_setup_overfl_dev(struct pci_dev *pdev, if (window == NULL) { i82875p_printk(KERN_ERR, "%s(): Failed to ioremap bar6\n", - __func__); + __func__); goto fail1; } @@ -325,21 +334,20 @@ fail0: return 1; } - /* Return 1 if dual channel mode is active. Else return 0. */ static inline int dual_channel_active(u32 drc) { return (drc >> 21) & 0x1; } - static void i82875p_init_csrows(struct mem_ctl_info *mci, - struct pci_dev *pdev, void __iomem *ovrfl_window, u32 drc) + struct pci_dev *pdev, + void __iomem * ovrfl_window, u32 drc) { struct csrow_info *csrow; unsigned long last_cumul_size; u8 value; - u32 drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */ + u32 drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */ u32 cumul_size; int index; @@ -392,7 +400,7 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx) drc = readl(ovrfl_window + I82875P_DRC); nr_chans = dual_channel_active(drc) + 1; mci = edac_mc_alloc(sizeof(*pvt), I82875P_NR_CSROWS(nr_chans), - nr_chans); + nr_chans, 0); if (!mci) { rc = -ENOMEM; @@ -407,23 +415,35 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx) mci->mod_name = EDAC_MOD_STR; mci->mod_ver = I82875P_REVISION; mci->ctl_name = i82875p_devs[dev_idx].ctl_name; + mci->dev_name = pci_name(pdev); mci->edac_check = i82875p_check; mci->ctl_page_to_phys = NULL; debugf3("%s(): init pvt\n", __func__); - pvt = (struct i82875p_pvt *) mci->pvt_info; + pvt = (struct i82875p_pvt *)mci->pvt_info; pvt->ovrfl_pdev = ovrfl_pdev; pvt->ovrfl_window = ovrfl_window; i82875p_init_csrows(mci, pdev, ovrfl_window, drc); - i82875p_get_error_info(mci, &discard); /* clear counters */ + i82875p_get_error_info(mci, &discard); /* clear counters */ /* Here we assume that we will never see multiple instances of this * type of memory controller. The ID is therefore hardcoded to 0. */ - if (edac_mc_add_mc(mci,0)) { + if (edac_mc_add_mc(mci)) { debugf3("%s(): failed edac_mc_add_mc()\n", __func__); goto fail1; } + /* allocating generic PCI control info */ + i82875p_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!i82875p_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + /* get this far and it's successful */ debugf3("%s(): success\n", __func__); return 0; @@ -442,7 +462,7 @@ fail0: /* returns count (>= 0), or negative on error */ static int __devinit i82875p_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { int rc; @@ -467,10 +487,13 @@ static void __devexit i82875p_remove_one(struct pci_dev *pdev) debugf0("%s()\n", __func__); + if (i82875p_pci) + edac_pci_release_generic_ctl(i82875p_pci); + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) return; - pvt = (struct i82875p_pvt *) mci->pvt_info; + pvt = (struct i82875p_pvt *)mci->pvt_info; if (pvt->ovrfl_window) iounmap(pvt->ovrfl_window); @@ -488,12 +511,11 @@ static void __devexit i82875p_remove_one(struct pci_dev *pdev) static const struct pci_device_id i82875p_pci_tbl[] __devinitdata = { { - PCI_VEND_DEV(INTEL, 82875_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, - I82875P - }, + PCI_VEND_DEV(INTEL, 82875_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I82875P}, { - 0, - } /* 0 terminated list. */ + 0, + } /* 0 terminated list. */ }; MODULE_DEVICE_TABLE(pci, i82875p_pci_tbl); @@ -517,7 +539,7 @@ static int __init i82875p_init(void) if (mci_pdev == NULL) { mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_82875_0, NULL); + PCI_DEVICE_ID_INTEL_82875_0, NULL); if (!mci_pdev) { debugf0("875p pci_get_device fail\n"); diff --git a/drivers/edac/i82975x_edac.c b/drivers/edac/i82975x_edac.c new file mode 100644 index 000000000000..0ee888456932 --- /dev/null +++ b/drivers/edac/i82975x_edac.c @@ -0,0 +1,666 @@ +/* + * Intel 82975X Memory Controller kernel module + * (C) 2007 aCarLab (India) Pvt. Ltd. (http://acarlab.com) + * (C) 2007 jetzbroadband (http://jetzbroadband.com) + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Written by Arvind R. + * Copied from i82875p_edac.c source: + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/slab.h> + +#include "edac_core.h" + +#define I82975X_REVISION " Ver: 1.0.0 " __DATE__ +#define EDAC_MOD_STR "i82975x_edac" + +#define i82975x_printk(level, fmt, arg...) \ + edac_printk(level, "i82975x", fmt, ##arg) + +#define i82975x_mc_printk(mci, level, fmt, arg...) \ + edac_mc_chipset_printk(mci, level, "i82975x", fmt, ##arg) + +#ifndef PCI_DEVICE_ID_INTEL_82975_0 +#define PCI_DEVICE_ID_INTEL_82975_0 0x277c +#endif /* PCI_DEVICE_ID_INTEL_82975_0 */ + +#define I82975X_NR_CSROWS(nr_chans) (8/(nr_chans)) + +/* Intel 82975X register addresses - device 0 function 0 - DRAM Controller */ +#define I82975X_EAP 0x58 /* Dram Error Address Pointer (32b) + * + * 31:7 128 byte cache-line address + * 6:1 reserved + * 0 0: CH0; 1: CH1 + */ + +#define I82975X_DERRSYN 0x5c /* Dram Error SYNdrome (8b) + * + * 7:0 DRAM ECC Syndrome + */ + +#define I82975X_DES 0x5d /* Dram ERRor DeSTination (8b) + * 0h: Processor Memory Reads + * 1h:7h reserved + * More - See Page 65 of Intel DocSheet. + */ + +#define I82975X_ERRSTS 0xc8 /* Error Status Register (16b) + * + * 15:12 reserved + * 11 Thermal Sensor Event + * 10 reserved + * 9 non-DRAM lock error (ndlock) + * 8 Refresh Timeout + * 7:2 reserved + * 1 ECC UE (multibit DRAM error) + * 0 ECC CE (singlebit DRAM error) + */ + +/* Error Reporting is supported by 3 mechanisms: + 1. DMI SERR generation ( ERRCMD ) + 2. SMI DMI generation ( SMICMD ) + 3. SCI DMI generation ( SCICMD ) +NOTE: Only ONE of the three must be enabled +*/ +#define I82975X_ERRCMD 0xca /* Error Command (16b) + * + * 15:12 reserved + * 11 Thermal Sensor Event + * 10 reserved + * 9 non-DRAM lock error (ndlock) + * 8 Refresh Timeout + * 7:2 reserved + * 1 ECC UE (multibit DRAM error) + * 0 ECC CE (singlebit DRAM error) + */ + +#define I82975X_SMICMD 0xcc /* Error Command (16b) + * + * 15:2 reserved + * 1 ECC UE (multibit DRAM error) + * 0 ECC CE (singlebit DRAM error) + */ + +#define I82975X_SCICMD 0xce /* Error Command (16b) + * + * 15:2 reserved + * 1 ECC UE (multibit DRAM error) + * 0 ECC CE (singlebit DRAM error) + */ + +#define I82975X_XEAP 0xfc /* Extended Dram Error Address Pointer (8b) + * + * 7:1 reserved + * 0 Bit32 of the Dram Error Address + */ + +#define I82975X_MCHBAR 0x44 /* + * + * 31:14 Base Addr of 16K memory-mapped + * configuration space + * 13:1 reserverd + * 0 mem-mapped config space enable + */ + +/* NOTE: Following addresses have to indexed using MCHBAR offset (44h, 32b) */ +/* Intel 82975x memory mapped register space */ + +#define I82975X_DRB_SHIFT 25 /* fixed 32MiB grain */ + +#define I82975X_DRB 0x100 /* DRAM Row Boundary (8b x 8) + * + * 7 set to 1 in highest DRB of + * channel if 4GB in ch. + * 6:2 upper boundary of rank in + * 32MB grains + * 1:0 set to 0 + */ +#define I82975X_DRB_CH0R0 0x100 +#define I82975X_DRB_CH0R1 0x101 +#define I82975X_DRB_CH0R2 0x102 +#define I82975X_DRB_CH0R3 0x103 +#define I82975X_DRB_CH1R0 0x180 +#define I82975X_DRB_CH1R1 0x181 +#define I82975X_DRB_CH1R2 0x182 +#define I82975X_DRB_CH1R3 0x183 + + +#define I82975X_DRA 0x108 /* DRAM Row Attribute (4b x 8) + * defines the PAGE SIZE to be used + * for the rank + * 7 reserved + * 6:4 row attr of odd rank, i.e. 1 + * 3 reserved + * 2:0 row attr of even rank, i.e. 0 + * + * 000 = unpopulated + * 001 = reserved + * 010 = 4KiB + * 011 = 8KiB + * 100 = 16KiB + * others = reserved + */ +#define I82975X_DRA_CH0R01 0x108 +#define I82975X_DRA_CH0R23 0x109 +#define I82975X_DRA_CH1R01 0x188 +#define I82975X_DRA_CH1R23 0x189 + + +#define I82975X_BNKARC 0x10e /* Type of device in each rank - Bank Arch (16b) + * + * 15:8 reserved + * 7:6 Rank 3 architecture + * 5:4 Rank 2 architecture + * 3:2 Rank 1 architecture + * 1:0 Rank 0 architecture + * + * 00 => x16 devices; i.e 4 banks + * 01 => x8 devices; i.e 8 banks + */ +#define I82975X_C0BNKARC 0x10e +#define I82975X_C1BNKARC 0x18e + + + +#define I82975X_DRC 0x120 /* DRAM Controller Mode0 (32b) + * + * 31:30 reserved + * 29 init complete + * 28:11 reserved, according to Intel + * 22:21 number of channels + * 00=1 01=2 in 82875 + * seems to be ECC mode + * bits in 82975 in Asus + * P5W + * 19:18 Data Integ Mode + * 00=none 01=ECC in 82875 + * 10:8 refresh mode + * 7 reserved + * 6:4 mode select + * 3:2 reserved + * 1:0 DRAM type 10=Second Revision + * DDR2 SDRAM + * 00, 01, 11 reserved + */ +#define I82975X_DRC_CH0M0 0x120 +#define I82975X_DRC_CH1M0 0x1A0 + + +#define I82975X_DRC_M1 0x124 /* DRAM Controller Mode1 (32b) + * 31 0=Standard Address Map + * 1=Enhanced Address Map + * 30:0 reserved + */ + +#define I82975X_DRC_CH0M1 0x124 +#define I82975X_DRC_CH1M1 0x1A4 + +enum i82975x_chips { + I82975X = 0, +}; + +struct i82975x_pvt { + void __iomem *mch_window; +}; + +struct i82975x_dev_info { + const char *ctl_name; +}; + +struct i82975x_error_info { + u16 errsts; + u32 eap; + u8 des; + u8 derrsyn; + u16 errsts2; + u8 chan; /* the channel is bit 0 of EAP */ + u8 xeap; /* extended eap bit */ +}; + +static const struct i82975x_dev_info i82975x_devs[] = { + [I82975X] = { + .ctl_name = "i82975x" + }, +}; + +static struct pci_dev *mci_pdev; /* init dev: in case that AGP code has + * already registered driver + */ + +static int i82975x_registered = 1; + +static void i82975x_get_error_info(struct mem_ctl_info *mci, + struct i82975x_error_info *info) +{ + struct pci_dev *pdev; + + pdev = to_pci_dev(mci->dev); + + /* + * This is a mess because there is no atomic way to read all the + * registers at once and the registers can transition from CE being + * overwritten by UE. + */ + pci_read_config_word(pdev, I82975X_ERRSTS, &info->errsts); + pci_read_config_dword(pdev, I82975X_EAP, &info->eap); + pci_read_config_byte(pdev, I82975X_XEAP, &info->xeap); + pci_read_config_byte(pdev, I82975X_DES, &info->des); + pci_read_config_byte(pdev, I82975X_DERRSYN, &info->derrsyn); + pci_read_config_word(pdev, I82975X_ERRSTS, &info->errsts2); + + pci_write_bits16(pdev, I82975X_ERRSTS, 0x0003, 0x0003); + + /* + * If the error is the same then we can for both reads then + * the first set of reads is valid. If there is a change then + * there is a CE no info and the second set of reads is valid + * and should be UE info. + */ + if (!(info->errsts2 & 0x0003)) + return; + + if ((info->errsts ^ info->errsts2) & 0x0003) { + pci_read_config_dword(pdev, I82975X_EAP, &info->eap); + pci_read_config_byte(pdev, I82975X_XEAP, &info->xeap); + pci_read_config_byte(pdev, I82975X_DES, &info->des); + pci_read_config_byte(pdev, I82975X_DERRSYN, + &info->derrsyn); + } +} + +static int i82975x_process_error_info(struct mem_ctl_info *mci, + struct i82975x_error_info *info, int handle_errors) +{ + int row, multi_chan, chan; + + multi_chan = mci->csrows[0].nr_channels - 1; + + if (!(info->errsts2 & 0x0003)) + return 0; + + if (!handle_errors) + return 1; + + if ((info->errsts ^ info->errsts2) & 0x0003) { + edac_mc_handle_ce_no_info(mci, "UE overwrote CE"); + info->errsts = info->errsts2; + } + + chan = info->eap & 1; + info->eap >>= 1; + if (info->xeap ) + info->eap |= 0x80000000; + info->eap >>= PAGE_SHIFT; + row = edac_mc_find_csrow_by_page(mci, info->eap); + + if (info->errsts & 0x0002) + edac_mc_handle_ue(mci, info->eap, 0, row, "i82975x UE"); + else + edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row, + multi_chan ? chan : 0, + "i82975x CE"); + + return 1; +} + +static void i82975x_check(struct mem_ctl_info *mci) +{ + struct i82975x_error_info info; + + debugf1("MC%d: %s()\n", mci->mc_idx, __func__); + i82975x_get_error_info(mci, &info); + i82975x_process_error_info(mci, &info, 1); +} + +/* Return 1 if dual channel mode is active. Else return 0. */ +static int dual_channel_active(void __iomem *mch_window) +{ + /* + * We treat interleaved-symmetric configuration as dual-channel - EAP's + * bit-0 giving the channel of the error location. + * + * All other configurations are treated as single channel - the EAP's + * bit-0 will resolve ok in symmetric area of mixed + * (symmetric/asymmetric) configurations + */ + u8 drb[4][2]; + int row; + int dualch; + + for (dualch = 1, row = 0; dualch && (row < 4); row++) { + drb[row][0] = readb(mch_window + I82975X_DRB + row); + drb[row][1] = readb(mch_window + I82975X_DRB + row + 0x80); + dualch = dualch && (drb[row][0] == drb[row][1]); + } + return dualch; +} + +static enum dev_type i82975x_dram_type(void __iomem *mch_window, int rank) +{ + /* + * ASUS P5W DH either does not program this register or programs + * it wrong! + * ECC is possible on i92975x ONLY with DEV_X8 which should mean 'val' + * for each rank should be 01b - the LSB of the word should be 0x55; + * but it reads 0! + */ + return DEV_X8; +} + +static void i82975x_init_csrows(struct mem_ctl_info *mci, + struct pci_dev *pdev, void __iomem *mch_window) +{ + struct csrow_info *csrow; + unsigned long last_cumul_size; + u8 value; + u32 cumul_size; + int index; + + last_cumul_size = 0; + + /* + * 82875 comment: + * The dram row boundary (DRB) reg values are boundary address + * for each DRAM row with a granularity of 32 or 64MB (single/dual + * channel operation). DRB regs are cumulative; therefore DRB7 will + * contain the total memory contained in all eight rows. + * + * FIXME: + * EDAC currently works for Dual-channel Interleaved configuration. + * Other configurations, which the chip supports, need fixing/testing. + * + */ + + for (index = 0; index < mci->nr_csrows; index++) { + csrow = &mci->csrows[index]; + + value = readb(mch_window + I82975X_DRB + index + + ((index >= 4) ? 0x80 : 0)); + cumul_size = value; + cumul_size <<= (I82975X_DRB_SHIFT - PAGE_SHIFT); + debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index, + cumul_size); + if (cumul_size == last_cumul_size) + continue; /* not populated */ + + csrow->first_page = last_cumul_size; + csrow->last_page = cumul_size - 1; + csrow->nr_pages = cumul_size - last_cumul_size; + last_cumul_size = cumul_size; + csrow->grain = 1 << 7; /* I82975X_EAP has 128B resolution */ + csrow->mtype = MEM_DDR; /* i82975x supports only DDR2 */ + csrow->dtype = i82975x_dram_type(mch_window, index); + csrow->edac_mode = EDAC_SECDED; /* only supported */ + } +} + +/* #define i82975x_DEBUG_IOMEM */ + +#ifdef i82975x_DEBUG_IOMEM +static void i82975x_print_dram_timings(void __iomem *mch_window) +{ + /* + * The register meanings are from Intel specs; + * (shows 13-5-5-5 for 800-DDR2) + * Asus P5W Bios reports 15-5-4-4 + * What's your religion? + */ + static const int caslats[4] = { 5, 4, 3, 6 }; + u32 dtreg[2]; + + dtreg[0] = readl(mch_window + 0x114); + dtreg[1] = readl(mch_window + 0x194); + i82975x_printk(KERN_INFO, "DRAM Timings : Ch0 Ch1\n" + " RAS Active Min = %d %d\n" + " CAS latency = %d %d\n" + " RAS to CAS = %d %d\n" + " RAS precharge = %d %d\n", + (dtreg[0] >> 19 ) & 0x0f, + (dtreg[1] >> 19) & 0x0f, + caslats[(dtreg[0] >> 8) & 0x03], + caslats[(dtreg[1] >> 8) & 0x03], + ((dtreg[0] >> 4) & 0x07) + 2, + ((dtreg[1] >> 4) & 0x07) + 2, + (dtreg[0] & 0x07) + 2, + (dtreg[1] & 0x07) + 2 + ); + +} +#endif + +static int i82975x_probe1(struct pci_dev *pdev, int dev_idx) +{ + int rc = -ENODEV; + struct mem_ctl_info *mci; + struct i82975x_pvt *pvt; + void __iomem *mch_window; + u32 mchbar; + u32 drc[2]; + struct i82975x_error_info discard; + int chans; +#ifdef i82975x_DEBUG_IOMEM + u8 c0drb[4]; + u8 c1drb[4]; +#endif + + debugf0("%s()\n", __func__); + + pci_read_config_dword(pdev, I82975X_MCHBAR, &mchbar); + if (!(mchbar & 1)) { + debugf3("%s(): failed, MCHBAR disabled!\n", __func__); + goto fail0; + } + mchbar &= 0xffffc000; /* bits 31:14 used for 16K window */ + mch_window = ioremap_nocache(mchbar, 0x1000); + +#ifdef i82975x_DEBUG_IOMEM + i82975x_printk(KERN_INFO, "MCHBAR real = %0x, remapped = %p\n", + mchbar, mch_window); + + c0drb[0] = readb(mch_window + I82975X_DRB_CH0R0); + c0drb[1] = readb(mch_window + I82975X_DRB_CH0R1); + c0drb[2] = readb(mch_window + I82975X_DRB_CH0R2); + c0drb[3] = readb(mch_window + I82975X_DRB_CH0R3); + c1drb[0] = readb(mch_window + I82975X_DRB_CH1R0); + c1drb[1] = readb(mch_window + I82975X_DRB_CH1R1); + c1drb[2] = readb(mch_window + I82975X_DRB_CH1R2); + c1drb[3] = readb(mch_window + I82975X_DRB_CH1R3); + i82975x_printk(KERN_INFO, "DRBCH0R0 = 0x%02x\n", c0drb[0]); + i82975x_printk(KERN_INFO, "DRBCH0R1 = 0x%02x\n", c0drb[1]); + i82975x_printk(KERN_INFO, "DRBCH0R2 = 0x%02x\n", c0drb[2]); + i82975x_printk(KERN_INFO, "DRBCH0R3 = 0x%02x\n", c0drb[3]); + i82975x_printk(KERN_INFO, "DRBCH1R0 = 0x%02x\n", c1drb[0]); + i82975x_printk(KERN_INFO, "DRBCH1R1 = 0x%02x\n", c1drb[1]); + i82975x_printk(KERN_INFO, "DRBCH1R2 = 0x%02x\n", c1drb[2]); + i82975x_printk(KERN_INFO, "DRBCH1R3 = 0x%02x\n", c1drb[3]); +#endif + + drc[0] = readl(mch_window + I82975X_DRC_CH0M0); + drc[1] = readl(mch_window + I82975X_DRC_CH1M0); +#ifdef i82975x_DEBUG_IOMEM + i82975x_printk(KERN_INFO, "DRC_CH0 = %0x, %s\n", drc[0], + ((drc[0] >> 21) & 3) == 1 ? + "ECC enabled" : "ECC disabled"); + i82975x_printk(KERN_INFO, "DRC_CH1 = %0x, %s\n", drc[1], + ((drc[1] >> 21) & 3) == 1 ? + "ECC enabled" : "ECC disabled"); + + i82975x_printk(KERN_INFO, "C0 BNKARC = %0x\n", + readw(mch_window + I82975X_C0BNKARC)); + i82975x_printk(KERN_INFO, "C1 BNKARC = %0x\n", + readw(mch_window + I82975X_C1BNKARC)); + i82975x_print_dram_timings(mch_window); + goto fail1; +#endif + if (!(((drc[0] >> 21) & 3) == 1 || ((drc[1] >> 21) & 3) == 1)) { + i82975x_printk(KERN_INFO, "ECC disabled on both channels.\n"); + goto fail1; + } + + chans = dual_channel_active(mch_window) + 1; + + /* assuming only one controller, index thus is 0 */ + mci = edac_mc_alloc(sizeof(*pvt), I82975X_NR_CSROWS(chans), + chans, 0); + if (!mci) { + rc = -ENOMEM; + goto fail1; + } + + debugf3("%s(): init mci\n", __func__); + mci->dev = &pdev->dev; + mci->mtype_cap = MEM_FLAG_DDR; + mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED; + mci->edac_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED; + mci->mod_name = EDAC_MOD_STR; + mci->mod_ver = I82975X_REVISION; + mci->ctl_name = i82975x_devs[dev_idx].ctl_name; + mci->edac_check = i82975x_check; + mci->ctl_page_to_phys = NULL; + debugf3("%s(): init pvt\n", __func__); + pvt = (struct i82975x_pvt *) mci->pvt_info; + pvt->mch_window = mch_window; + i82975x_init_csrows(mci, pdev, mch_window); + i82975x_get_error_info(mci, &discard); /* clear counters */ + + /* finalize this instance of memory controller with edac core */ + if (edac_mc_add_mc(mci)) { + debugf3("%s(): failed edac_mc_add_mc()\n", __func__); + goto fail2; + } + + /* get this far and it's successful */ + debugf3("%s(): success\n", __func__); + return 0; + +fail2: + edac_mc_free(mci); + +fail1: + iounmap(mch_window); +fail0: + return rc; +} + +/* returns count (>= 0), or negative on error */ +static int __devinit i82975x_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int rc; + + debugf0("%s()\n", __func__); + + if (pci_enable_device(pdev) < 0) + return -EIO; + + rc = i82975x_probe1(pdev, ent->driver_data); + + if (mci_pdev == NULL) + mci_pdev = pci_dev_get(pdev); + + return rc; +} + +static void __devexit i82975x_remove_one(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci; + struct i82975x_pvt *pvt; + + debugf0("%s()\n", __func__); + + mci = edac_mc_del_mc(&pdev->dev); + if (mci == NULL) + return; + + pvt = mci->pvt_info; + if (pvt->mch_window) + iounmap( pvt->mch_window ); + + edac_mc_free(mci); +} + +static const struct pci_device_id i82975x_pci_tbl[] __devinitdata = { + { + PCI_VEND_DEV(INTEL, 82975_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, + I82975X + }, + { + 0, + } /* 0 terminated list. */ +}; + +MODULE_DEVICE_TABLE(pci, i82975x_pci_tbl); + +static struct pci_driver i82975x_driver = { + .name = EDAC_MOD_STR, + .probe = i82975x_init_one, + .remove = __devexit_p(i82975x_remove_one), + .id_table = i82975x_pci_tbl, +}; + +static int __init i82975x_init(void) +{ + int pci_rc; + + debugf3("%s()\n", __func__); + + pci_rc = pci_register_driver(&i82975x_driver); + if (pci_rc < 0) + goto fail0; + + if (mci_pdev == NULL) { + mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82975_0, NULL); + + if (!mci_pdev) { + debugf0("i82975x pci_get_device fail\n"); + pci_rc = -ENODEV; + goto fail1; + } + + pci_rc = i82975x_init_one(mci_pdev, i82975x_pci_tbl); + + if (pci_rc < 0) { + debugf0("i82975x init fail\n"); + pci_rc = -ENODEV; + goto fail1; + } + } + + return 0; + +fail1: + pci_unregister_driver(&i82975x_driver); + +fail0: + if (mci_pdev != NULL) + pci_dev_put(mci_pdev); + + return pci_rc; +} + +static void __exit i82975x_exit(void) +{ + debugf3("%s()\n", __func__); + + pci_unregister_driver(&i82975x_driver); + + if (!i82975x_registered) { + i82975x_remove_one(mci_pdev); + pci_dev_put(mci_pdev); + } +} + +module_init(i82975x_init); +module_exit(i82975x_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Arvind R. <arvind@acarlab.com>"); +MODULE_DESCRIPTION("MC support for Intel 82975 memory hub controllers"); diff --git a/drivers/edac/pasemi_edac.c b/drivers/edac/pasemi_edac.c new file mode 100644 index 000000000000..e66cdd42a392 --- /dev/null +++ b/drivers/edac/pasemi_edac.c @@ -0,0 +1,299 @@ +/* + * Copyright (C) 2006-2007 PA Semi, Inc + * + * Author: Egor Martovetsky <egor@pasemi.com> + * Maintained by: Olof Johansson <olof@lixom.net> + * + * Driver for the PWRficient onchip memory controllers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/slab.h> +#include "edac_core.h" + +#define MODULE_NAME "pasemi_edac" + +#define MCCFG_MCEN 0x300 +#define MCCFG_MCEN_MMC_EN 0x00000001 +#define MCCFG_ERRCOR 0x388 +#define MCCFG_ERRCOR_RNK_FAIL_DET_EN 0x00000100 +#define MCCFG_ERRCOR_ECC_GEN_EN 0x00000010 +#define MCCFG_ERRCOR_ECC_CRR_EN 0x00000001 +#define MCCFG_SCRUB 0x384 +#define MCCFG_SCRUB_RGLR_SCRB_EN 0x00000001 +#define MCDEBUG_ERRCTL1 0x728 +#define MCDEBUG_ERRCTL1_RFL_LOG_EN 0x00080000 +#define MCDEBUG_ERRCTL1_MBE_LOG_EN 0x00040000 +#define MCDEBUG_ERRCTL1_SBE_LOG_EN 0x00020000 +#define MCDEBUG_ERRSTA 0x730 +#define MCDEBUG_ERRSTA_RFL_STATUS 0x00000004 +#define MCDEBUG_ERRSTA_MBE_STATUS 0x00000002 +#define MCDEBUG_ERRSTA_SBE_STATUS 0x00000001 +#define MCDEBUG_ERRCNT1 0x734 +#define MCDEBUG_ERRCNT1_SBE_CNT_OVRFLO 0x00000080 +#define MCDEBUG_ERRLOG1A 0x738 +#define MCDEBUG_ERRLOG1A_MERR_TYPE_M 0x30000000 +#define MCDEBUG_ERRLOG1A_MERR_TYPE_NONE 0x00000000 +#define MCDEBUG_ERRLOG1A_MERR_TYPE_SBE 0x10000000 +#define MCDEBUG_ERRLOG1A_MERR_TYPE_MBE 0x20000000 +#define MCDEBUG_ERRLOG1A_MERR_TYPE_RFL 0x30000000 +#define MCDEBUG_ERRLOG1A_MERR_BA_M 0x00700000 +#define MCDEBUG_ERRLOG1A_MERR_BA_S 20 +#define MCDEBUG_ERRLOG1A_MERR_CS_M 0x00070000 +#define MCDEBUG_ERRLOG1A_MERR_CS_S 16 +#define MCDEBUG_ERRLOG1A_SYNDROME_M 0x0000ffff +#define MCDRAM_RANKCFG 0x114 +#define MCDRAM_RANKCFG_EN 0x00000001 +#define MCDRAM_RANKCFG_TYPE_SIZE_M 0x000001c0 +#define MCDRAM_RANKCFG_TYPE_SIZE_S 6 + +#define PASEMI_EDAC_NR_CSROWS 8 +#define PASEMI_EDAC_NR_CHANS 1 +#define PASEMI_EDAC_ERROR_GRAIN 64 + +static int last_page_in_mmc; +static int system_mmc_id; + + +static u32 pasemi_edac_get_error_info(struct mem_ctl_info *mci) +{ + struct pci_dev *pdev = to_pci_dev(mci->dev); + u32 tmp; + + pci_read_config_dword(pdev, MCDEBUG_ERRSTA, + &tmp); + + tmp &= (MCDEBUG_ERRSTA_RFL_STATUS | MCDEBUG_ERRSTA_MBE_STATUS + | MCDEBUG_ERRSTA_SBE_STATUS); + + if (tmp) { + if (tmp & MCDEBUG_ERRSTA_SBE_STATUS) + pci_write_config_dword(pdev, MCDEBUG_ERRCNT1, + MCDEBUG_ERRCNT1_SBE_CNT_OVRFLO); + pci_write_config_dword(pdev, MCDEBUG_ERRSTA, tmp); + } + + return tmp; +} + +static void pasemi_edac_process_error_info(struct mem_ctl_info *mci, u32 errsta) +{ + struct pci_dev *pdev = to_pci_dev(mci->dev); + u32 errlog1a; + u32 cs; + + if (!errsta) + return; + + pci_read_config_dword(pdev, MCDEBUG_ERRLOG1A, &errlog1a); + + cs = (errlog1a & MCDEBUG_ERRLOG1A_MERR_CS_M) >> + MCDEBUG_ERRLOG1A_MERR_CS_S; + + /* uncorrectable/multi-bit errors */ + if (errsta & (MCDEBUG_ERRSTA_MBE_STATUS | + MCDEBUG_ERRSTA_RFL_STATUS)) { + edac_mc_handle_ue(mci, mci->csrows[cs].first_page, 0, + cs, mci->ctl_name); + } + + /* correctable/single-bit errors */ + if (errsta & MCDEBUG_ERRSTA_SBE_STATUS) { + edac_mc_handle_ce(mci, mci->csrows[cs].first_page, 0, + 0, cs, 0, mci->ctl_name); + } +} + +static void pasemi_edac_check(struct mem_ctl_info *mci) +{ + u32 errsta; + + errsta = pasemi_edac_get_error_info(mci); + if (errsta) + pasemi_edac_process_error_info(mci, errsta); +} + +static int pasemi_edac_init_csrows(struct mem_ctl_info *mci, + struct pci_dev *pdev, + enum edac_type edac_mode) +{ + struct csrow_info *csrow; + u32 rankcfg; + int index; + + for (index = 0; index < mci->nr_csrows; index++) { + csrow = &mci->csrows[index]; + + pci_read_config_dword(pdev, + MCDRAM_RANKCFG + (index * 12), + &rankcfg); + + if (!(rankcfg & MCDRAM_RANKCFG_EN)) + continue; + + switch ((rankcfg & MCDRAM_RANKCFG_TYPE_SIZE_M) >> + MCDRAM_RANKCFG_TYPE_SIZE_S) { + case 0: + csrow->nr_pages = 128 << (20 - PAGE_SHIFT); + break; + case 1: + csrow->nr_pages = 256 << (20 - PAGE_SHIFT); + break; + case 2: + case 3: + csrow->nr_pages = 512 << (20 - PAGE_SHIFT); + break; + case 4: + csrow->nr_pages = 1024 << (20 - PAGE_SHIFT); + break; + case 5: + csrow->nr_pages = 2048 << (20 - PAGE_SHIFT); + break; + default: + edac_mc_printk(mci, KERN_ERR, + "Unrecognized Rank Config. rankcfg=%u\n", + rankcfg); + return -EINVAL; + } + + csrow->first_page = last_page_in_mmc; + csrow->last_page = csrow->first_page + csrow->nr_pages - 1; + last_page_in_mmc += csrow->nr_pages; + csrow->page_mask = 0; + csrow->grain = PASEMI_EDAC_ERROR_GRAIN; + csrow->mtype = MEM_DDR; + csrow->dtype = DEV_UNKNOWN; + csrow->edac_mode = edac_mode; + } + return 0; +} + +static int __devinit pasemi_edac_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct mem_ctl_info *mci = NULL; + u32 errctl1, errcor, scrub, mcen; + + pci_read_config_dword(pdev, MCCFG_MCEN, &mcen); + if (!(mcen & MCCFG_MCEN_MMC_EN)) + return -ENODEV; + + /* + * We should think about enabling other error detection later on + */ + + pci_read_config_dword(pdev, MCDEBUG_ERRCTL1, &errctl1); + errctl1 |= MCDEBUG_ERRCTL1_SBE_LOG_EN | + MCDEBUG_ERRCTL1_MBE_LOG_EN | + MCDEBUG_ERRCTL1_RFL_LOG_EN; + pci_write_config_dword(pdev, MCDEBUG_ERRCTL1, errctl1); + + mci = edac_mc_alloc(0, PASEMI_EDAC_NR_CSROWS, PASEMI_EDAC_NR_CHANS, + system_mmc_id++); + + if (mci == NULL) + return -ENOMEM; + + pci_read_config_dword(pdev, MCCFG_ERRCOR, &errcor); + errcor |= MCCFG_ERRCOR_RNK_FAIL_DET_EN | + MCCFG_ERRCOR_ECC_GEN_EN | + MCCFG_ERRCOR_ECC_CRR_EN; + + mci->dev = &pdev->dev; + mci->mtype_cap = MEM_FLAG_DDR | MEM_FLAG_RDDR; + mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED; + mci->edac_cap = (errcor & MCCFG_ERRCOR_ECC_GEN_EN) ? + ((errcor & MCCFG_ERRCOR_ECC_CRR_EN) ? + (EDAC_FLAG_EC | EDAC_FLAG_SECDED) : EDAC_FLAG_EC) : + EDAC_FLAG_NONE; + mci->mod_name = MODULE_NAME; + mci->dev_name = pci_name(pdev); + mci->ctl_name = "pasemi,1682m-mc"; + mci->edac_check = pasemi_edac_check; + mci->ctl_page_to_phys = NULL; + pci_read_config_dword(pdev, MCCFG_SCRUB, &scrub); + mci->scrub_cap = SCRUB_FLAG_HW_PROG | SCRUB_FLAG_HW_SRC; + mci->scrub_mode = + ((errcor & MCCFG_ERRCOR_ECC_CRR_EN) ? SCRUB_FLAG_HW_SRC : 0) | + ((scrub & MCCFG_SCRUB_RGLR_SCRB_EN) ? SCRUB_FLAG_HW_PROG : 0); + + if (pasemi_edac_init_csrows(mci, pdev, + (mci->edac_cap & EDAC_FLAG_SECDED) ? + EDAC_SECDED : + ((mci->edac_cap & EDAC_FLAG_EC) ? + EDAC_EC : EDAC_NONE))) + goto fail; + + /* + * Clear status + */ + pasemi_edac_get_error_info(mci); + + if (edac_mc_add_mc(mci)) + goto fail; + + /* get this far and it's successful */ + return 0; + +fail: + edac_mc_free(mci); + return -ENODEV; +} + +static void __devexit pasemi_edac_remove(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci = edac_mc_del_mc(&pdev->dev); + + if (!mci) + return; + + edac_mc_free(mci); +} + + +static const struct pci_device_id pasemi_edac_pci_tbl[] = { + { PCI_DEVICE(PCI_VENDOR_ID_PASEMI, 0xa00a) }, +}; + +MODULE_DEVICE_TABLE(pci, pasemi_edac_pci_tbl); + +static struct pci_driver pasemi_edac_driver = { + .name = MODULE_NAME, + .probe = pasemi_edac_probe, + .remove = __devexit_p(pasemi_edac_remove), + .id_table = pasemi_edac_pci_tbl, +}; + +static int __init pasemi_edac_init(void) +{ + return pci_register_driver(&pasemi_edac_driver); +} + +static void __exit pasemi_edac_exit(void) +{ + pci_unregister_driver(&pasemi_edac_driver); +} + +module_init(pasemi_edac_init); +module_exit(pasemi_edac_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Egor Martovetsky <egor@pasemi.com>"); +MODULE_DESCRIPTION("MC support for PA Semi PA6T-1682M memory controller"); diff --git a/drivers/edac/r82600_edac.c b/drivers/edac/r82600_edac.c index a49cf0a39398..e25f712f2dc3 100644 --- a/drivers/edac/r82600_edac.c +++ b/drivers/edac/r82600_edac.c @@ -11,7 +11,7 @@ * * Written with reference to 82600 High Integration Dual PCI System * Controller Data Book: - * http://www.radisys.com/files/support_downloads/007-01277-0002.82600DataBook.pdf + * www.radisys.com/files/support_downloads/007-01277-0002.82600DataBook.pdf * references to this document given in [] */ @@ -20,9 +20,9 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include "edac_mc.h" +#include "edac_core.h" -#define R82600_REVISION " Ver: 2.0.1 " __DATE__ +#define R82600_REVISION " Ver: 2.0.2 " __DATE__ #define EDAC_MOD_STR "r82600_edac" #define r82600_printk(level, fmt, arg...) \ @@ -131,10 +131,12 @@ struct r82600_error_info { u32 eapr; }; -static unsigned int disable_hardware_scrub = 0; +static unsigned int disable_hardware_scrub; -static void r82600_get_error_info (struct mem_ctl_info *mci, - struct r82600_error_info *info) +static struct edac_pci_ctl_info *r82600_pci; + +static void r82600_get_error_info(struct mem_ctl_info *mci, + struct r82600_error_info *info) { struct pci_dev *pdev; @@ -144,18 +146,19 @@ static void r82600_get_error_info (struct mem_ctl_info *mci, if (info->eapr & BIT(0)) /* Clear error to allow next error to be reported [p.62] */ pci_write_bits32(pdev, R82600_EAP, - ((u32) BIT(0) & (u32) BIT(1)), - ((u32) BIT(0) & (u32) BIT(1))); + ((u32) BIT(0) & (u32) BIT(1)), + ((u32) BIT(0) & (u32) BIT(1))); if (info->eapr & BIT(1)) /* Clear error to allow next error to be reported [p.62] */ pci_write_bits32(pdev, R82600_EAP, - ((u32) BIT(0) & (u32) BIT(1)), - ((u32) BIT(0) & (u32) BIT(1))); + ((u32) BIT(0) & (u32) BIT(1)), + ((u32) BIT(0) & (u32) BIT(1))); } -static int r82600_process_error_info (struct mem_ctl_info *mci, - struct r82600_error_info *info, int handle_errors) +static int r82600_process_error_info(struct mem_ctl_info *mci, + struct r82600_error_info *info, + int handle_errors) { int error_found; u32 eapaddr, page; @@ -172,25 +175,24 @@ static int r82600_process_error_info (struct mem_ctl_info *mci, * granularity (upper 19 bits only) */ page = eapaddr >> PAGE_SHIFT; - if (info->eapr & BIT(0)) { /* CE? */ + if (info->eapr & BIT(0)) { /* CE? */ error_found = 1; if (handle_errors) - edac_mc_handle_ce(mci, page, 0, /* not avail */ + edac_mc_handle_ce(mci, page, 0, /* not avail */ syndrome, edac_mc_find_csrow_by_page(mci, page), - 0, /* channel */ - mci->ctl_name); + 0, mci->ctl_name); } - if (info->eapr & BIT(1)) { /* UE? */ + if (info->eapr & BIT(1)) { /* UE? */ error_found = 1; if (handle_errors) /* 82600 doesn't give enough info */ edac_mc_handle_ue(mci, page, 0, - edac_mc_find_csrow_by_page(mci, page), - mci->ctl_name); + edac_mc_find_csrow_by_page(mci, page), + mci->ctl_name); } return error_found; @@ -211,11 +213,11 @@ static inline int ecc_enabled(u8 dramcr) } static void r82600_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev, - u8 dramcr) + u8 dramcr) { struct csrow_info *csrow; int index; - u8 drbar; /* SDRAM Row Boundry Address Register */ + u8 drbar; /* SDRAM Row Boundry Address Register */ u32 row_high_limit, row_high_limit_last; u32 reg_sdram, ecc_on, row_base; @@ -276,7 +278,7 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx) debugf2("%s(): sdram refresh rate = %#0x\n", __func__, sdram_refresh_rate); debugf2("%s(): DRAMC register = %#0x\n", __func__, dramcr); - mci = edac_mc_alloc(0, R82600_NR_CSROWS, R82600_NR_CHANS); + mci = edac_mc_alloc(0, R82600_NR_CSROWS, R82600_NR_CHANS, 0); if (mci == NULL) return -ENOMEM; @@ -305,15 +307,16 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx) mci->mod_name = EDAC_MOD_STR; mci->mod_ver = R82600_REVISION; mci->ctl_name = "R82600"; + mci->dev_name = pci_name(pdev); mci->edac_check = r82600_check; mci->ctl_page_to_phys = NULL; r82600_init_csrows(mci, pdev, dramcr); - r82600_get_error_info(mci, &discard); /* clear counters */ + r82600_get_error_info(mci, &discard); /* clear counters */ /* Here we assume that we will never see multiple instances of this * type of memory controller. The ID is therefore hardcoded to 0. */ - if (edac_mc_add_mc(mci,0)) { + if (edac_mc_add_mc(mci)) { debugf3("%s(): failed edac_mc_add_mc()\n", __func__); goto fail; } @@ -326,6 +329,17 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx) pci_write_bits32(pdev, R82600_EAP, BIT(31), BIT(31)); } + /* allocating generic PCI control info */ + r82600_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); + if (!r82600_pci) { + printk(KERN_WARNING + "%s(): Unable to create PCI control\n", + __func__); + printk(KERN_WARNING + "%s(): PCI error report via EDAC not setup\n", + __func__); + } + debugf3("%s(): success\n", __func__); return 0; @@ -336,7 +350,7 @@ fail: /* returns count (>= 0), or negative on error */ static int __devinit r82600_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { debugf0("%s()\n", __func__); @@ -350,6 +364,9 @@ static void __devexit r82600_remove_one(struct pci_dev *pdev) debugf0("%s()\n", __func__); + if (r82600_pci) + edac_pci_release_generic_ctl(r82600_pci); + if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) return; @@ -358,11 +375,11 @@ static void __devexit r82600_remove_one(struct pci_dev *pdev) static const struct pci_device_id r82600_pci_tbl[] __devinitdata = { { - PCI_DEVICE(PCI_VENDOR_ID_RADISYS, R82600_BRIDGE_ID) - }, + PCI_DEVICE(PCI_VENDOR_ID_RADISYS, R82600_BRIDGE_ID) + }, { - 0, - } /* 0 terminated list. */ + 0, + } /* 0 terminated list. */ }; MODULE_DEVICE_TABLE(pci, r82600_pci_tbl); @@ -389,7 +406,7 @@ module_exit(r82600_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Tim Small <tim@buttersideup.com> - WPAD Ltd. " - "on behalf of EADS Astrium"); + "on behalf of EADS Astrium"); MODULE_DESCRIPTION("MC support for Radisys 82600 memory controllers"); module_param(disable_hardware_scrub, bool, 0644); diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 41476abc0693..db703758db98 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -224,6 +224,7 @@ ohci_update_phy_reg(struct fw_card *card, int addr, u32 val, old; reg_write(ohci, OHCI1394_PhyControl, OHCI1394_PhyControl_Read(addr)); + flush_writes(ohci); msleep(2); val = reg_read(ohci, OHCI1394_PhyControl); if ((val & OHCI1394_PhyControl_ReadDone) == 0) { @@ -586,7 +587,7 @@ static void context_stop(struct context *ctx) break; fw_notify("context_stop: still active (0x%08x)\n", reg); - msleep(1); + mdelay(1); } } diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 7c53be0387fb..fc984474162c 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -840,7 +840,6 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status) container_of(base_orb, struct sbp2_command_orb, base); struct fw_unit *unit = orb->unit; struct fw_device *device = fw_device(unit->device.parent); - struct scatterlist *sg; int result; if (status != NULL) { @@ -876,11 +875,10 @@ complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status) dma_unmap_single(device->card->device, orb->base.request_bus, sizeof(orb->request), DMA_TO_DEVICE); - if (orb->cmd->use_sg > 0) { - sg = (struct scatterlist *)orb->cmd->request_buffer; - dma_unmap_sg(device->card->device, sg, orb->cmd->use_sg, + if (scsi_sg_count(orb->cmd) > 0) + dma_unmap_sg(device->card->device, scsi_sglist(orb->cmd), + scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction); - } if (orb->page_table_bus != 0) dma_unmap_single(device->card->device, orb->page_table_bus, @@ -901,8 +899,8 @@ static int sbp2_command_orb_map_scatterlist(struct sbp2_command_orb *orb) int sg_len, l, i, j, count; dma_addr_t sg_addr; - sg = (struct scatterlist *)orb->cmd->request_buffer; - count = dma_map_sg(device->card->device, sg, orb->cmd->use_sg, + sg = scsi_sglist(orb->cmd); + count = dma_map_sg(device->card->device, sg, scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction); if (count == 0) goto fail; @@ -971,7 +969,7 @@ static int sbp2_command_orb_map_scatterlist(struct sbp2_command_orb *orb) return 0; fail_page_table: - dma_unmap_sg(device->card->device, sg, orb->cmd->use_sg, + dma_unmap_sg(device->card->device, sg, scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction); fail: return -ENOMEM; @@ -1031,7 +1029,7 @@ static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done) orb->request.misc |= COMMAND_ORB_DIRECTION(SBP2_DIRECTION_TO_MEDIA); - if (cmd->use_sg && sbp2_command_orb_map_scatterlist(orb) < 0) + if (scsi_sg_count(cmd) && sbp2_command_orb_map_scatterlist(orb) < 0) goto fail_mapping; fw_memcpy_to_be32(&orb->request, &orb->request, sizeof(orb->request)); diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c index 80d0121463d0..3ce8e2fbe15f 100644 --- a/drivers/firewire/fw-transaction.c +++ b/drivers/firewire/fw-transaction.c @@ -605,8 +605,10 @@ fw_send_response(struct fw_card *card, struct fw_request *request, int rcode) * check is sufficient to ensure we don't send response to * broadcast packets or posted writes. */ - if (request->ack != ACK_PENDING) + if (request->ack != ACK_PENDING) { + kfree(request); return; + } if (rcode == RCODE_COMPLETE) fw_fill_response(&request->response, request->request_header, @@ -628,11 +630,6 @@ fw_core_handle_request(struct fw_card *card, struct fw_packet *p) unsigned long flags; int tcode, destination, source; - if (p->payload_length > 2048) { - /* FIXME: send error response. */ - return; - } - if (p->ack != ACK_PENDING && p->ack != ACK_COMPLETE) return; diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index 5abed193f4a6..5ceaccd10564 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h @@ -123,6 +123,10 @@ typedef void (*fw_transaction_callback_t)(struct fw_card *card, int rcode, size_t length, void *callback_data); +/* + * Important note: The callback must guarantee that either fw_send_response() + * or kfree() is called on the @request. + */ typedef void (*fw_address_callback_t)(struct fw_card *card, struct fw_request *request, int tcode, int destination, int source, diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c index 7eaae3834e15..275d392eca61 100644 --- a/drivers/hwmon/lm70.c +++ b/drivers/hwmon/lm70.c @@ -96,6 +96,10 @@ static int __devinit lm70_probe(struct spi_device *spi) struct lm70 *p_lm70; int status; + /* signaling is SPI_MODE_0 on a 3-wire link (shared SI/SO) */ + if ((spi->mode & (SPI_CPOL|SPI_CPHA)) || !(spi->mode & SPI_3WIRE)) + return -EINVAL; + p_lm70 = kzalloc(sizeof *p_lm70, GFP_KERNEL); if (!p_lm70) return -ENOMEM; diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c index 03188d277af1..17cecf1ea797 100644 --- a/drivers/i2c/busses/i2c-pmcmsp.c +++ b/drivers/i2c/busses/i2c-pmcmsp.c @@ -630,7 +630,7 @@ static struct i2c_adapter pmcmsptwi_adapter = { static struct platform_driver pmcmsptwi_driver = { .probe = pmcmsptwi_probe, .remove = __devexit_p(pmcmsptwi_remove), - .driver { + .driver = { .name = DRV_NAME, .owner = THIS_MODULE, }, diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig index 3944e889cb21..2e1c24f671cf 100644 --- a/drivers/i2c/chips/Kconfig +++ b/drivers/i2c/chips/Kconfig @@ -153,4 +153,14 @@ config SENSORS_TSL2550 This driver can also be built as a module. If so, the module will be called tsl2550. +config MENELAUS + bool "TWL92330/Menelaus PM chip" + depends on I2C=y && ARCH_OMAP24XX + help + If you say yes here you get support for the Texas Instruments + TWL92330/Menelaus Power Management chip. This include voltage + regulators, Dual slot memory card tranceivers, real-time clock + and other features that are often used in portable devices like + cell phones and PDAs. + endmenu diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile index d8cbeb3f4b63..ca924e105959 100644 --- a/drivers/i2c/chips/Makefile +++ b/drivers/i2c/chips/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o obj-$(CONFIG_TPS65010) += tps65010.o +obj-$(CONFIG_MENELAUS) += menelaus.o obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o ifeq ($(CONFIG_I2C_DEBUG_CHIP),y) diff --git a/drivers/i2c/chips/menelaus.c b/drivers/i2c/chips/menelaus.c new file mode 100644 index 000000000000..48a7e2f0bdd3 --- /dev/null +++ b/drivers/i2c/chips/menelaus.c @@ -0,0 +1,1281 @@ +#define DEBUG +/* + * Copyright (C) 2004 Texas Instruments, Inc. + * + * Some parts based tps65010.c: + * Copyright (C) 2004 Texas Instruments and + * Copyright (C) 2004-2005 David Brownell + * + * Some parts based on tlv320aic24.c: + * Copyright (C) by Kai Svahn <kai.svahn@nokia.com> + * + * Changes for interrupt handling and clean-up by + * Tony Lindgren <tony@atomide.com> and Imre Deak <imre.deak@nokia.com> + * Cleanup and generalized support for voltage setting by + * Juha Yrjola + * Added support for controlling VCORE and regulator sleep states, + * Amit Kucheria <amit.kucheria@nokia.com> + * Copyright (C) 2005, 2006 Nokia Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/mutex.h> +#include <linux/workqueue.h> +#include <linux/delay.h> +#include <linux/rtc.h> +#include <linux/bcd.h> + +#include <asm/mach-types.h> +#include <asm/mach/irq.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/menelaus.h> + +#define DRIVER_NAME "menelaus" + +#define pr_err(fmt, arg...) printk(KERN_ERR DRIVER_NAME ": ", ## arg); + +#define MENELAUS_I2C_ADDRESS 0x72 + +#define MENELAUS_REV 0x01 +#define MENELAUS_VCORE_CTRL1 0x02 +#define MENELAUS_VCORE_CTRL2 0x03 +#define MENELAUS_VCORE_CTRL3 0x04 +#define MENELAUS_VCORE_CTRL4 0x05 +#define MENELAUS_VCORE_CTRL5 0x06 +#define MENELAUS_DCDC_CTRL1 0x07 +#define MENELAUS_DCDC_CTRL2 0x08 +#define MENELAUS_DCDC_CTRL3 0x09 +#define MENELAUS_LDO_CTRL1 0x0A +#define MENELAUS_LDO_CTRL2 0x0B +#define MENELAUS_LDO_CTRL3 0x0C +#define MENELAUS_LDO_CTRL4 0x0D +#define MENELAUS_LDO_CTRL5 0x0E +#define MENELAUS_LDO_CTRL6 0x0F +#define MENELAUS_LDO_CTRL7 0x10 +#define MENELAUS_LDO_CTRL8 0x11 +#define MENELAUS_SLEEP_CTRL1 0x12 +#define MENELAUS_SLEEP_CTRL2 0x13 +#define MENELAUS_DEVICE_OFF 0x14 +#define MENELAUS_OSC_CTRL 0x15 +#define MENELAUS_DETECT_CTRL 0x16 +#define MENELAUS_INT_MASK1 0x17 +#define MENELAUS_INT_MASK2 0x18 +#define MENELAUS_INT_STATUS1 0x19 +#define MENELAUS_INT_STATUS2 0x1A +#define MENELAUS_INT_ACK1 0x1B +#define MENELAUS_INT_ACK2 0x1C +#define MENELAUS_GPIO_CTRL 0x1D +#define MENELAUS_GPIO_IN 0x1E +#define MENELAUS_GPIO_OUT 0x1F +#define MENELAUS_BBSMS 0x20 +#define MENELAUS_RTC_CTRL 0x21 +#define MENELAUS_RTC_UPDATE 0x22 +#define MENELAUS_RTC_SEC 0x23 +#define MENELAUS_RTC_MIN 0x24 +#define MENELAUS_RTC_HR 0x25 +#define MENELAUS_RTC_DAY 0x26 +#define MENELAUS_RTC_MON 0x27 +#define MENELAUS_RTC_YR 0x28 +#define MENELAUS_RTC_WKDAY 0x29 +#define MENELAUS_RTC_AL_SEC 0x2A +#define MENELAUS_RTC_AL_MIN 0x2B +#define MENELAUS_RTC_AL_HR 0x2C +#define MENELAUS_RTC_AL_DAY 0x2D +#define MENELAUS_RTC_AL_MON 0x2E +#define MENELAUS_RTC_AL_YR 0x2F +#define MENELAUS_RTC_COMP_MSB 0x30 +#define MENELAUS_RTC_COMP_LSB 0x31 +#define MENELAUS_S1_PULL_EN 0x32 +#define MENELAUS_S1_PULL_DIR 0x33 +#define MENELAUS_S2_PULL_EN 0x34 +#define MENELAUS_S2_PULL_DIR 0x35 +#define MENELAUS_MCT_CTRL1 0x36 +#define MENELAUS_MCT_CTRL2 0x37 +#define MENELAUS_MCT_CTRL3 0x38 +#define MENELAUS_MCT_PIN_ST 0x39 +#define MENELAUS_DEBOUNCE1 0x3A + +#define IH_MENELAUS_IRQS 12 +#define MENELAUS_MMC_S1CD_IRQ 0 /* MMC slot 1 card change */ +#define MENELAUS_MMC_S2CD_IRQ 1 /* MMC slot 2 card change */ +#define MENELAUS_MMC_S1D1_IRQ 2 /* MMC DAT1 low in slot 1 */ +#define MENELAUS_MMC_S2D1_IRQ 3 /* MMC DAT1 low in slot 2 */ +#define MENELAUS_LOWBAT_IRQ 4 /* Low battery */ +#define MENELAUS_HOTDIE_IRQ 5 /* Hot die detect */ +#define MENELAUS_UVLO_IRQ 6 /* UVLO detect */ +#define MENELAUS_TSHUT_IRQ 7 /* Thermal shutdown */ +#define MENELAUS_RTCTMR_IRQ 8 /* RTC timer */ +#define MENELAUS_RTCALM_IRQ 9 /* RTC alarm */ +#define MENELAUS_RTCERR_IRQ 10 /* RTC error */ +#define MENELAUS_PSHBTN_IRQ 11 /* Push button */ +#define MENELAUS_RESERVED12_IRQ 12 /* Reserved */ +#define MENELAUS_RESERVED13_IRQ 13 /* Reserved */ +#define MENELAUS_RESERVED14_IRQ 14 /* Reserved */ +#define MENELAUS_RESERVED15_IRQ 15 /* Reserved */ + +static void menelaus_work(struct work_struct *_menelaus); + +struct menelaus_chip { + struct mutex lock; + struct i2c_client *client; + struct work_struct work; +#ifdef CONFIG_RTC_DRV_TWL92330 + struct rtc_device *rtc; + u8 rtc_control; + unsigned uie:1; +#endif + unsigned vcore_hw_mode:1; + u8 mask1, mask2; + void (*handlers[16])(struct menelaus_chip *); + void (*mmc_callback)(void *data, u8 mask); + void *mmc_callback_data; +}; + +static struct menelaus_chip *the_menelaus; + +static int menelaus_write_reg(int reg, u8 value) +{ + int val = i2c_smbus_write_byte_data(the_menelaus->client, reg, value); + + if (val < 0) { + pr_err("write error"); + return val; + } + + return 0; +} + +static int menelaus_read_reg(int reg) +{ + int val = i2c_smbus_read_byte_data(the_menelaus->client, reg); + + if (val < 0) + pr_err("read error"); + + return val; +} + +static int menelaus_enable_irq(int irq) +{ + if (irq > 7) { + irq -= 8; + the_menelaus->mask2 &= ~(1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK2, + the_menelaus->mask2); + } else { + the_menelaus->mask1 &= ~(1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK1, + the_menelaus->mask1); + } +} + +static int menelaus_disable_irq(int irq) +{ + if (irq > 7) { + irq -= 8; + the_menelaus->mask2 |= (1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK2, + the_menelaus->mask2); + } else { + the_menelaus->mask1 |= (1 << irq); + return menelaus_write_reg(MENELAUS_INT_MASK1, + the_menelaus->mask1); + } +} + +static int menelaus_ack_irq(int irq) +{ + if (irq > 7) + return menelaus_write_reg(MENELAUS_INT_ACK2, 1 << (irq - 8)); + else + return menelaus_write_reg(MENELAUS_INT_ACK1, 1 << irq); +} + +/* Adds a handler for an interrupt. Does not run in interrupt context */ +static int menelaus_add_irq_work(int irq, + void (*handler)(struct menelaus_chip *)) +{ + int ret = 0; + + mutex_lock(&the_menelaus->lock); + the_menelaus->handlers[irq] = handler; + ret = menelaus_enable_irq(irq); + mutex_unlock(&the_menelaus->lock); + + return ret; +} + +/* Removes handler for an interrupt */ +static int menelaus_remove_irq_work(int irq) +{ + int ret = 0; + + mutex_lock(&the_menelaus->lock); + ret = menelaus_disable_irq(irq); + the_menelaus->handlers[irq] = NULL; + mutex_unlock(&the_menelaus->lock); + + return ret; +} + +/* + * Gets scheduled when a card detect interrupt happens. Note that in some cases + * this line is wired to card cover switch rather than the card detect switch + * in each slot. In this case the cards are not seen by menelaus. + * FIXME: Add handling for D1 too + */ +static void menelaus_mmc_cd_work(struct menelaus_chip *menelaus_hw) +{ + int reg; + unsigned char card_mask = 0; + + reg = menelaus_read_reg(MENELAUS_MCT_PIN_ST); + if (reg < 0) + return; + + if (!(reg & 0x1)) + card_mask |= (1 << 0); + + if (!(reg & 0x2)) + card_mask |= (1 << 1); + + if (menelaus_hw->mmc_callback) + menelaus_hw->mmc_callback(menelaus_hw->mmc_callback_data, + card_mask); +} + +/* + * Toggles the MMC slots between open-drain and push-pull mode. + */ +int menelaus_set_mmc_opendrain(int slot, int enable) +{ + int ret, val; + + if (slot != 1 && slot != 2) + return -EINVAL; + mutex_lock(&the_menelaus->lock); + ret = menelaus_read_reg(MENELAUS_MCT_CTRL1); + if (ret < 0) { + mutex_unlock(&the_menelaus->lock); + return ret; + } + val = ret; + if (slot == 1) { + if (enable) + val |= 1 << 2; + else + val &= ~(1 << 2); + } else { + if (enable) + val |= 1 << 3; + else + val &= ~(1 << 3); + } + ret = menelaus_write_reg(MENELAUS_MCT_CTRL1, val); + mutex_unlock(&the_menelaus->lock); + + return ret; +} +EXPORT_SYMBOL(menelaus_set_mmc_opendrain); + +int menelaus_set_slot_sel(int enable) +{ + int ret; + + mutex_lock(&the_menelaus->lock); + ret = menelaus_read_reg(MENELAUS_GPIO_CTRL); + if (ret < 0) + goto out; + ret |= 0x02; + if (enable) + ret |= 1 << 5; + else + ret &= ~(1 << 5); + ret = menelaus_write_reg(MENELAUS_GPIO_CTRL, ret); +out: + mutex_unlock(&the_menelaus->lock); + return ret; +} +EXPORT_SYMBOL(menelaus_set_slot_sel); + +int menelaus_set_mmc_slot(int slot, int enable, int power, int cd_en) +{ + int ret, val; + + if (slot != 1 && slot != 2) + return -EINVAL; + if (power >= 3) + return -EINVAL; + + mutex_lock(&the_menelaus->lock); + + ret = menelaus_read_reg(MENELAUS_MCT_CTRL2); + if (ret < 0) + goto out; + val = ret; + if (slot == 1) { + if (cd_en) + val |= (1 << 4) | (1 << 6); + else + val &= ~((1 << 4) | (1 << 6)); + } else { + if (cd_en) + val |= (1 << 5) | (1 << 7); + else + val &= ~((1 << 5) | (1 << 7)); + } + ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, val); + if (ret < 0) + goto out; + + ret = menelaus_read_reg(MENELAUS_MCT_CTRL3); + if (ret < 0) + goto out; + val = ret; + if (slot == 1) { + if (enable) + val |= 1 << 0; + else + val &= ~(1 << 0); + } else { + int b; + + if (enable) + ret |= 1 << 1; + else + ret &= ~(1 << 1); + b = menelaus_read_reg(MENELAUS_MCT_CTRL2); + b &= ~0x03; + b |= power; + ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, b); + if (ret < 0) + goto out; + } + /* Disable autonomous shutdown */ + val &= ~(0x03 << 2); + ret = menelaus_write_reg(MENELAUS_MCT_CTRL3, val); +out: + mutex_unlock(&the_menelaus->lock); + return ret; +} +EXPORT_SYMBOL(menelaus_set_mmc_slot); + +int menelaus_register_mmc_callback(void (*callback)(void *data, u8 card_mask), + void *data) +{ + int ret = 0; + + the_menelaus->mmc_callback_data = data; + the_menelaus->mmc_callback = callback; + ret = menelaus_add_irq_work(MENELAUS_MMC_S1CD_IRQ, + menelaus_mmc_cd_work); + if (ret < 0) + return ret; + ret = menelaus_add_irq_work(MENELAUS_MMC_S2CD_IRQ, + menelaus_mmc_cd_work); + if (ret < 0) + return ret; + ret = menelaus_add_irq_work(MENELAUS_MMC_S1D1_IRQ, + menelaus_mmc_cd_work); + if (ret < 0) + return ret; + ret = menelaus_add_irq_work(MENELAUS_MMC_S2D1_IRQ, + menelaus_mmc_cd_work); + + return ret; +} +EXPORT_SYMBOL(menelaus_register_mmc_callback); + +void menelaus_unregister_mmc_callback(void) +{ + menelaus_remove_irq_work(MENELAUS_MMC_S1CD_IRQ); + menelaus_remove_irq_work(MENELAUS_MMC_S2CD_IRQ); + menelaus_remove_irq_work(MENELAUS_MMC_S1D1_IRQ); + menelaus_remove_irq_work(MENELAUS_MMC_S2D1_IRQ); + + the_menelaus->mmc_callback = NULL; + the_menelaus->mmc_callback_data = 0; +} +EXPORT_SYMBOL(menelaus_unregister_mmc_callback); + +struct menelaus_vtg { + const char *name; + u8 vtg_reg; + u8 vtg_shift; + u8 vtg_bits; + u8 mode_reg; +}; + +struct menelaus_vtg_value { + u16 vtg; + u16 val; +}; + +static int menelaus_set_voltage(const struct menelaus_vtg *vtg, int mV, + int vtg_val, int mode) +{ + int val, ret; + struct i2c_client *c = the_menelaus->client; + + mutex_lock(&the_menelaus->lock); + if (vtg == 0) + goto set_voltage; + + ret = menelaus_read_reg(vtg->vtg_reg); + if (ret < 0) + goto out; + val = ret & ~(((1 << vtg->vtg_bits) - 1) << vtg->vtg_shift); + val |= vtg_val << vtg->vtg_shift; + + dev_dbg(&c->dev, "Setting voltage '%s'" + "to %d mV (reg 0x%02x, val 0x%02x)\n", + vtg->name, mV, vtg->vtg_reg, val); + + ret = menelaus_write_reg(vtg->vtg_reg, val); + if (ret < 0) + goto out; +set_voltage: + ret = menelaus_write_reg(vtg->mode_reg, mode); +out: + mutex_unlock(&the_menelaus->lock); + if (ret == 0) { + /* Wait for voltage to stabilize */ + msleep(1); + } + return ret; +} + +static int menelaus_get_vtg_value(int vtg, const struct menelaus_vtg_value *tbl, + int n) +{ + int i; + + for (i = 0; i < n; i++, tbl++) + if (tbl->vtg == vtg) + return tbl->val; + return -EINVAL; +} + +/* + * Vcore can be programmed in two ways: + * SW-controlled: Required voltage is programmed into VCORE_CTRL1 + * HW-controlled: Required range (roof-floor) is programmed into VCORE_CTRL3 + * and VCORE_CTRL4 + * + * Call correct 'set' function accordingly + */ + +static const struct menelaus_vtg_value vcore_values[] = { + { 1000, 0 }, + { 1025, 1 }, + { 1050, 2 }, + { 1075, 3 }, + { 1100, 4 }, + { 1125, 5 }, + { 1150, 6 }, + { 1175, 7 }, + { 1200, 8 }, + { 1225, 9 }, + { 1250, 10 }, + { 1275, 11 }, + { 1300, 12 }, + { 1325, 13 }, + { 1350, 14 }, + { 1375, 15 }, + { 1400, 16 }, + { 1425, 17 }, + { 1450, 18 }, +}; + +int menelaus_set_vcore_sw(unsigned int mV) +{ + int val, ret; + struct i2c_client *c = the_menelaus->client; + + val = menelaus_get_vtg_value(mV, vcore_values, + ARRAY_SIZE(vcore_values)); + if (val < 0) + return -EINVAL; + + dev_dbg(&c->dev, "Setting VCORE to %d mV (val 0x%02x)\n", mV, val); + + /* Set SW mode and the voltage in one go. */ + mutex_lock(&the_menelaus->lock); + ret = menelaus_write_reg(MENELAUS_VCORE_CTRL1, val); + if (ret == 0) + the_menelaus->vcore_hw_mode = 0; + mutex_unlock(&the_menelaus->lock); + msleep(1); + + return ret; +} + +int menelaus_set_vcore_hw(unsigned int roof_mV, unsigned int floor_mV) +{ + int fval, rval, val, ret; + struct i2c_client *c = the_menelaus->client; + + rval = menelaus_get_vtg_value(roof_mV, vcore_values, + ARRAY_SIZE(vcore_values)); + if (rval < 0) + return -EINVAL; + fval = menelaus_get_vtg_value(floor_mV, vcore_values, + ARRAY_SIZE(vcore_values)); + if (fval < 0) + return -EINVAL; + + dev_dbg(&c->dev, "Setting VCORE FLOOR to %d mV and ROOF to %d mV\n", + floor_mV, roof_mV); + + mutex_lock(&the_menelaus->lock); + ret = menelaus_write_reg(MENELAUS_VCORE_CTRL3, fval); + if (ret < 0) + goto out; + ret = menelaus_write_reg(MENELAUS_VCORE_CTRL4, rval); + if (ret < 0) + goto out; + if (!the_menelaus->vcore_hw_mode) { + val = menelaus_read_reg(MENELAUS_VCORE_CTRL1); + /* HW mode, turn OFF byte comparator */ + val |= ((1 << 7) | (1 << 5)); + ret = menelaus_write_reg(MENELAUS_VCORE_CTRL1, val); + the_menelaus->vcore_hw_mode = 1; + } + msleep(1); +out: + mutex_unlock(&the_menelaus->lock); + return ret; +} + +static const struct menelaus_vtg vmem_vtg = { + .name = "VMEM", + .vtg_reg = MENELAUS_LDO_CTRL1, + .vtg_shift = 0, + .vtg_bits = 2, + .mode_reg = MENELAUS_LDO_CTRL3, +}; + +static const struct menelaus_vtg_value vmem_values[] = { + { 1500, 0 }, + { 1800, 1 }, + { 1900, 2 }, + { 2500, 3 }, +}; + +int menelaus_set_vmem(unsigned int mV) +{ + int val; + + if (mV == 0) + return menelaus_set_voltage(&vmem_vtg, 0, 0, 0); + + val = menelaus_get_vtg_value(mV, vmem_values, ARRAY_SIZE(vmem_values)); + if (val < 0) + return -EINVAL; + return menelaus_set_voltage(&vmem_vtg, mV, val, 0x02); +} +EXPORT_SYMBOL(menelaus_set_vmem); + +static const struct menelaus_vtg vio_vtg = { + .name = "VIO", + .vtg_reg = MENELAUS_LDO_CTRL1, + .vtg_shift = 2, + .vtg_bits = 2, + .mode_reg = MENELAUS_LDO_CTRL4, +}; + +static const struct menelaus_vtg_value vio_values[] = { + { 1500, 0 }, + { 1800, 1 }, + { 2500, 2 }, + { 2800, 3 }, +}; + +int menelaus_set_vio(unsigned int mV) +{ + int val; + + if (mV == 0) + return menelaus_set_voltage(&vio_vtg, 0, 0, 0); + + val = menelaus_get_vtg_value(mV, vio_values, ARRAY_SIZE(vio_values)); + if (val < 0) + return -EINVAL; + return menelaus_set_voltage(&vio_vtg, mV, val, 0x02); +} +EXPORT_SYMBOL(menelaus_set_vio); + +static const struct menelaus_vtg_value vdcdc_values[] = { + { 1500, 0 }, + { 1800, 1 }, + { 2000, 2 }, + { 2200, 3 }, + { 2400, 4 }, + { 2800, 5 }, + { 3000, 6 }, + { 3300, 7 }, +}; + +static const struct menelaus_vtg vdcdc2_vtg = { + .name = "VDCDC2", + .vtg_reg = MENELAUS_DCDC_CTRL1, + .vtg_shift = 0, + .vtg_bits = 3, + .mode_reg = MENELAUS_DCDC_CTRL2, +}; + +static const struct menelaus_vtg vdcdc3_vtg = { + .name = "VDCDC3", + .vtg_reg = MENELAUS_DCDC_CTRL1, + .vtg_shift = 3, + .vtg_bits = 3, + .mode_reg = MENELAUS_DCDC_CTRL3, +}; + +int menelaus_set_vdcdc(int dcdc, unsigned int mV) +{ + const struct menelaus_vtg *vtg; + int val; + + if (dcdc != 2 && dcdc != 3) + return -EINVAL; + if (dcdc == 2) + vtg = &vdcdc2_vtg; + else + vtg = &vdcdc3_vtg; + + if (mV == 0) + return menelaus_set_voltage(vtg, 0, 0, 0); + + val = menelaus_get_vtg_value(mV, vdcdc_values, + ARRAY_SIZE(vdcdc_values)); + if (val < 0) + return -EINVAL; + return menelaus_set_voltage(vtg, mV, val, 0x03); +} + +static const struct menelaus_vtg_value vmmc_values[] = { + { 1850, 0 }, + { 2800, 1 }, + { 3000, 2 }, + { 3100, 3 }, +}; + +static const struct menelaus_vtg vmmc_vtg = { + .name = "VMMC", + .vtg_reg = MENELAUS_LDO_CTRL1, + .vtg_shift = 6, + .vtg_bits = 2, + .mode_reg = MENELAUS_LDO_CTRL7, +}; + +int menelaus_set_vmmc(unsigned int mV) +{ + int val; + + if (mV == 0) + return menelaus_set_voltage(&vmmc_vtg, 0, 0, 0); + + val = menelaus_get_vtg_value(mV, vmmc_values, ARRAY_SIZE(vmmc_values)); + if (val < 0) + return -EINVAL; + return menelaus_set_voltage(&vmmc_vtg, mV, val, 0x02); +} +EXPORT_SYMBOL(menelaus_set_vmmc); + + +static const struct menelaus_vtg_value vaux_values[] = { + { 1500, 0 }, + { 1800, 1 }, + { 2500, 2 }, + { 2800, 3 }, +}; + +static const struct menelaus_vtg vaux_vtg = { + .name = "VAUX", + .vtg_reg = MENELAUS_LDO_CTRL1, + .vtg_shift = 4, + .vtg_bits = 2, + .mode_reg = MENELAUS_LDO_CTRL6, +}; + +int menelaus_set_vaux(unsigned int mV) +{ + int val; + + if (mV == 0) + return menelaus_set_voltage(&vaux_vtg, 0, 0, 0); + + val = menelaus_get_vtg_value(mV, vaux_values, ARRAY_SIZE(vaux_values)); + if (val < 0) + return -EINVAL; + return menelaus_set_voltage(&vaux_vtg, mV, val, 0x02); +} +EXPORT_SYMBOL(menelaus_set_vaux); + +int menelaus_get_slot_pin_states(void) +{ + return menelaus_read_reg(MENELAUS_MCT_PIN_ST); +} +EXPORT_SYMBOL(menelaus_get_slot_pin_states); + +int menelaus_set_regulator_sleep(int enable, u32 val) +{ + int t, ret; + struct i2c_client *c = the_menelaus->client; + + mutex_lock(&the_menelaus->lock); + ret = menelaus_write_reg(MENELAUS_SLEEP_CTRL2, val); + if (ret < 0) + goto out; + + dev_dbg(&c->dev, "regulator sleep configuration: %02x\n", val); + + ret = menelaus_read_reg(MENELAUS_GPIO_CTRL); + if (ret < 0) + goto out; + t = ((1 << 6) | 0x04); + if (enable) + ret |= t; + else + ret &= ~t; + ret = menelaus_write_reg(MENELAUS_GPIO_CTRL, ret); +out: + mutex_unlock(&the_menelaus->lock); + return ret; +} + +/*-----------------------------------------------------------------------*/ + +/* Handles Menelaus interrupts. Does not run in interrupt context */ +static void menelaus_work(struct work_struct *_menelaus) +{ + struct menelaus_chip *menelaus = + container_of(_menelaus, struct menelaus_chip, work); + void (*handler)(struct menelaus_chip *menelaus); + + while (1) { + unsigned isr; + + isr = (menelaus_read_reg(MENELAUS_INT_STATUS2) + & ~menelaus->mask2) << 8; + isr |= menelaus_read_reg(MENELAUS_INT_STATUS1) + & ~menelaus->mask1; + if (!isr) + break; + + while (isr) { + int irq = fls(isr) - 1; + isr &= ~(1 << irq); + + mutex_lock(&menelaus->lock); + menelaus_disable_irq(irq); + menelaus_ack_irq(irq); + handler = menelaus->handlers[irq]; + if (handler) + handler(menelaus); + menelaus_enable_irq(irq); + mutex_unlock(&menelaus->lock); + } + } + enable_irq(menelaus->client->irq); +} + +/* + * We cannot use I2C in interrupt context, so we just schedule work. + */ +static irqreturn_t menelaus_irq(int irq, void *_menelaus) +{ + struct menelaus_chip *menelaus = _menelaus; + + disable_irq_nosync(irq); + (void)schedule_work(&menelaus->work); + + return IRQ_HANDLED; +} + +/*-----------------------------------------------------------------------*/ + +/* + * The RTC needs to be set once, then it runs on backup battery power. + * It supports alarms, including system wake alarms (from some modes); + * and 1/second IRQs if requested. + */ +#ifdef CONFIG_RTC_DRV_TWL92330 + +#define RTC_CTRL_RTC_EN (1 << 0) +#define RTC_CTRL_AL_EN (1 << 1) +#define RTC_CTRL_MODE12 (1 << 2) +#define RTC_CTRL_EVERY_MASK (3 << 3) +#define RTC_CTRL_EVERY_SEC (0 << 3) +#define RTC_CTRL_EVERY_MIN (1 << 3) +#define RTC_CTRL_EVERY_HR (2 << 3) +#define RTC_CTRL_EVERY_DAY (3 << 3) + +#define RTC_UPDATE_EVERY 0x08 + +#define RTC_HR_PM (1 << 7) + +static void menelaus_to_time(char *regs, struct rtc_time *t) +{ + t->tm_sec = BCD2BIN(regs[0]); + t->tm_min = BCD2BIN(regs[1]); + if (the_menelaus->rtc_control & RTC_CTRL_MODE12) { + t->tm_hour = BCD2BIN(regs[2] & 0x1f) - 1; + if (regs[2] & RTC_HR_PM) + t->tm_hour += 12; + } else + t->tm_hour = BCD2BIN(regs[2] & 0x3f); + t->tm_mday = BCD2BIN(regs[3]); + t->tm_mon = BCD2BIN(regs[4]) - 1; + t->tm_year = BCD2BIN(regs[5]) + 100; +} + +static int time_to_menelaus(struct rtc_time *t, int regnum) +{ + int hour, status; + + status = menelaus_write_reg(regnum++, BIN2BCD(t->tm_sec)); + if (status < 0) + goto fail; + + status = menelaus_write_reg(regnum++, BIN2BCD(t->tm_min)); + if (status < 0) + goto fail; + + if (the_menelaus->rtc_control & RTC_CTRL_MODE12) { + hour = t->tm_hour + 1; + if (hour > 12) + hour = RTC_HR_PM | BIN2BCD(hour - 12); + else + hour = BIN2BCD(hour); + } else + hour = BIN2BCD(t->tm_hour); + status = menelaus_write_reg(regnum++, hour); + if (status < 0) + goto fail; + + status = menelaus_write_reg(regnum++, BIN2BCD(t->tm_mday)); + if (status < 0) + goto fail; + + status = menelaus_write_reg(regnum++, BIN2BCD(t->tm_mon + 1)); + if (status < 0) + goto fail; + + status = menelaus_write_reg(regnum++, BIN2BCD(t->tm_year - 100)); + if (status < 0) + goto fail; + + return 0; +fail: + dev_err(&the_menelaus->client->dev, "rtc write reg %02x, err %d\n", + --regnum, status); + return status; +} + +static int menelaus_read_time(struct device *dev, struct rtc_time *t) +{ + struct i2c_msg msg[2]; + char regs[7]; + int status; + + /* block read date and time registers */ + regs[0] = MENELAUS_RTC_SEC; + + msg[0].addr = MENELAUS_I2C_ADDRESS; + msg[0].flags = 0; + msg[0].len = 1; + msg[0].buf = regs; + + msg[1].addr = MENELAUS_I2C_ADDRESS; + msg[1].flags = I2C_M_RD; + msg[1].len = sizeof(regs); + msg[1].buf = regs; + + status = i2c_transfer(the_menelaus->client->adapter, msg, 2); + if (status != 2) { + dev_err(dev, "%s error %d\n", "read", status); + return -EIO; + } + + menelaus_to_time(regs, t); + t->tm_wday = BCD2BIN(regs[6]); + + return 0; +} + +static int menelaus_set_time(struct device *dev, struct rtc_time *t) +{ + int status; + + /* write date and time registers */ + status = time_to_menelaus(t, MENELAUS_RTC_SEC); + if (status < 0) + return status; + status = menelaus_write_reg(MENELAUS_RTC_WKDAY, BIN2BCD(t->tm_wday)); + if (status < 0) { + dev_err(&the_menelaus->client->dev, "rtc write reg %02x", + "err %d\n", MENELAUS_RTC_WKDAY, status); + return status; + } + + /* now commit the write */ + status = menelaus_write_reg(MENELAUS_RTC_UPDATE, RTC_UPDATE_EVERY); + if (status < 0) + dev_err(&the_menelaus->client->dev, "rtc commit time, err %d\n", + status); + + return 0; +} + +static int menelaus_read_alarm(struct device *dev, struct rtc_wkalrm *w) +{ + struct i2c_msg msg[2]; + char regs[6]; + int status; + + /* block read alarm registers */ + regs[0] = MENELAUS_RTC_AL_SEC; + + msg[0].addr = MENELAUS_I2C_ADDRESS; + msg[0].flags = 0; + msg[0].len = 1; + msg[0].buf = regs; + + msg[1].addr = MENELAUS_I2C_ADDRESS; + msg[1].flags = I2C_M_RD; + msg[1].len = sizeof(regs); + msg[1].buf = regs; + + status = i2c_transfer(the_menelaus->client->adapter, msg, 2); + if (status != 2) { + dev_err(dev, "%s error %d\n", "alarm read", status); + return -EIO; + } + + menelaus_to_time(regs, &w->time); + + w->enabled = !!(the_menelaus->rtc_control & RTC_CTRL_AL_EN); + + /* NOTE we *could* check if actually pending... */ + w->pending = 0; + + return 0; +} + +static int menelaus_set_alarm(struct device *dev, struct rtc_wkalrm *w) +{ + int status; + + if (the_menelaus->client->irq <= 0 && w->enabled) + return -ENODEV; + + /* clear previous alarm enable */ + if (the_menelaus->rtc_control & RTC_CTRL_AL_EN) { + the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN; + status = menelaus_write_reg(MENELAUS_RTC_CTRL, + the_menelaus->rtc_control); + if (status < 0) + return status; + } + + /* write alarm registers */ + status = time_to_menelaus(&w->time, MENELAUS_RTC_AL_SEC); + if (status < 0) + return status; + + /* enable alarm if requested */ + if (w->enabled) { + the_menelaus->rtc_control |= RTC_CTRL_AL_EN; + status = menelaus_write_reg(MENELAUS_RTC_CTRL, + the_menelaus->rtc_control); + } + + return status; +} + +#ifdef CONFIG_RTC_INTF_DEV + +static void menelaus_rtc_update_work(struct menelaus_chip *m) +{ + /* report 1/sec update */ + local_irq_disable(); + rtc_update_irq(m->rtc, 1, RTC_IRQF | RTC_UF); + local_irq_enable(); +} + +static int menelaus_ioctl(struct device *dev, unsigned cmd, unsigned long arg) +{ + int status; + + if (the_menelaus->client->irq <= 0) + return -ENOIOCTLCMD; + + switch (cmd) { + /* alarm IRQ */ + case RTC_AIE_ON: + if (the_menelaus->rtc_control & RTC_CTRL_AL_EN) + return 0; + the_menelaus->rtc_control |= RTC_CTRL_AL_EN; + break; + case RTC_AIE_OFF: + if (!(the_menelaus->rtc_control & RTC_CTRL_AL_EN)) + return 0; + the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN; + break; + /* 1/second "update" IRQ */ + case RTC_UIE_ON: + if (the_menelaus->uie) + return 0; + status = menelaus_remove_irq_work(MENELAUS_RTCTMR_IRQ); + status = menelaus_add_irq_work(MENELAUS_RTCTMR_IRQ, + menelaus_rtc_update_work); + if (status == 0) + the_menelaus->uie = 1; + return status; + case RTC_UIE_OFF: + if (!the_menelaus->uie) + return 0; + status = menelaus_remove_irq_work(MENELAUS_RTCTMR_IRQ); + if (status == 0) + the_menelaus->uie = 0; + return status; + default: + return -ENOIOCTLCMD; + } + return menelaus_write_reg(MENELAUS_RTC_CTRL, the_menelaus->rtc_control); +} + +#else +#define menelaus_ioctl NULL +#endif + +/* REVISIT no compensation register support ... */ + +static const struct rtc_class_ops menelaus_rtc_ops = { + .ioctl = menelaus_ioctl, + .read_time = menelaus_read_time, + .set_time = menelaus_set_time, + .read_alarm = menelaus_read_alarm, + .set_alarm = menelaus_set_alarm, +}; + +static void menelaus_rtc_alarm_work(struct menelaus_chip *m) +{ + /* report alarm */ + local_irq_disable(); + rtc_update_irq(m->rtc, 1, RTC_IRQF | RTC_AF); + local_irq_enable(); + + /* then disable it; alarms are oneshot */ + the_menelaus->rtc_control &= ~RTC_CTRL_AL_EN; + menelaus_write_reg(MENELAUS_RTC_CTRL, the_menelaus->rtc_control); +} + +static inline void menelaus_rtc_init(struct menelaus_chip *m) +{ + int alarm = (m->client->irq > 0); + + /* assume 32KDETEN pin is pulled high */ + if (!(menelaus_read_reg(MENELAUS_OSC_CTRL) & 0x80)) { + dev_dbg(&m->client->dev, "no 32k oscillator\n"); + return; + } + + /* support RTC alarm; it can issue wakeups */ + if (alarm) { + if (menelaus_add_irq_work(MENELAUS_RTCALM_IRQ, + menelaus_rtc_alarm_work) < 0) { + dev_err(&m->client->dev, "can't handle RTC alarm\n"); + return; + } + device_init_wakeup(&m->client->dev, 1); + } + + /* be sure RTC is enabled; allow 1/sec irqs; leave 12hr mode alone */ + m->rtc_control = menelaus_read_reg(MENELAUS_RTC_CTRL); + if (!(m->rtc_control & RTC_CTRL_RTC_EN) + || (m->rtc_control & RTC_CTRL_AL_EN) + || (m->rtc_control & RTC_CTRL_EVERY_MASK)) { + if (!(m->rtc_control & RTC_CTRL_RTC_EN)) { + dev_warn(&m->client->dev, "rtc clock needs setting\n"); + m->rtc_control |= RTC_CTRL_RTC_EN; + } + m->rtc_control &= ~RTC_CTRL_EVERY_MASK; + m->rtc_control &= ~RTC_CTRL_AL_EN; + menelaus_write_reg(MENELAUS_RTC_CTRL, m->rtc_control); + } + + m->rtc = rtc_device_register(DRIVER_NAME, + &m->client->dev, + &menelaus_rtc_ops, THIS_MODULE); + if (IS_ERR(m->rtc)) { + if (alarm) { + menelaus_remove_irq_work(MENELAUS_RTCALM_IRQ); + device_init_wakeup(&m->client->dev, 0); + } + dev_err(&m->client->dev, "can't register RTC: %d\n", + (int) PTR_ERR(m->rtc)); + the_menelaus->rtc = NULL; + } +} + +#else + +static inline void menelaus_rtc_init(struct menelaus_chip *m) +{ + /* nothing */ +} + +#endif + +/*-----------------------------------------------------------------------*/ + +static struct i2c_driver menelaus_i2c_driver; + +static int menelaus_probe(struct i2c_client *client) +{ + struct menelaus_chip *menelaus; + int rev = 0, val; + int err = 0; + struct menelaus_platform_data *menelaus_pdata = + client->dev.platform_data; + + if (the_menelaus) { + dev_dbg(&client->dev, "only one %s for now\n", + DRIVER_NAME); + return -ENODEV; + } + + menelaus = kzalloc(sizeof *menelaus, GFP_KERNEL); + if (!menelaus) + return -ENOMEM; + + i2c_set_clientdata(client, menelaus); + + the_menelaus = menelaus; + menelaus->client = client; + + /* If a true probe check the device */ + rev = menelaus_read_reg(MENELAUS_REV); + if (rev < 0) { + pr_err("device not found"); + err = -ENODEV; + goto fail1; + } + + /* Ack and disable all Menelaus interrupts */ + menelaus_write_reg(MENELAUS_INT_ACK1, 0xff); + menelaus_write_reg(MENELAUS_INT_ACK2, 0xff); + menelaus_write_reg(MENELAUS_INT_MASK1, 0xff); + menelaus_write_reg(MENELAUS_INT_MASK2, 0xff); + menelaus->mask1 = 0xff; + menelaus->mask2 = 0xff; + + /* Set output buffer strengths */ + menelaus_write_reg(MENELAUS_MCT_CTRL1, 0x73); + + if (client->irq > 0) { + err = request_irq(client->irq, menelaus_irq, IRQF_DISABLED, + DRIVER_NAME, menelaus); + if (err) { + dev_dbg(&client->dev, "can't get IRQ %d, err %d", + client->irq, err); + goto fail1; + } + } + + mutex_init(&menelaus->lock); + INIT_WORK(&menelaus->work, menelaus_work); + + pr_info("Menelaus rev %d.%d\n", rev >> 4, rev & 0x0f); + + val = menelaus_read_reg(MENELAUS_VCORE_CTRL1); + if (val < 0) + goto fail2; + if (val & (1 << 7)) + menelaus->vcore_hw_mode = 1; + else + menelaus->vcore_hw_mode = 0; + + if (menelaus_pdata != NULL && menelaus_pdata->late_init != NULL) { + err = menelaus_pdata->late_init(&client->dev); + if (err < 0) + goto fail2; + } + + menelaus_rtc_init(menelaus); + + return 0; +fail2: + free_irq(client->irq, menelaus); + flush_scheduled_work(); +fail1: + kfree(menelaus); + return err; +} + +static int __exit menelaus_remove(struct i2c_client *client) +{ + struct menelaus_chip *menelaus = i2c_get_clientdata(client); + + free_irq(client->irq, menelaus); + kfree(menelaus); + i2c_set_clientdata(client, NULL); + the_menelaus = NULL; + return 0; +} + +static struct i2c_driver menelaus_i2c_driver = { + .driver = { + .name = DRIVER_NAME, + }, + .probe = menelaus_probe, + .remove = __exit_p(menelaus_remove), +}; + +static int __init menelaus_init(void) +{ + int res; + + res = i2c_add_driver(&menelaus_i2c_driver); + if (res < 0) { + pr_err("driver registration failed\n"); + return res; + } + + return 0; +} + +static void __exit menelaus_exit(void) +{ + i2c_del_driver(&menelaus_i2c_driver); + + /* FIXME: Shutdown menelaus parts that can be shut down */ +} + +MODULE_AUTHOR("Texas Instruments, Inc. (and others)"); +MODULE_DESCRIPTION("I2C interface for Menelaus."); +MODULE_LICENSE("GPL"); + +module_init(menelaus_init); +module_exit(menelaus_exit); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index cc5801399467..5a4c5ea12f89 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1073,14 +1073,14 @@ static int init_irq (ide_hwif_t *hwif) hwgroup->hwif->next = hwif; spin_unlock_irq(&ide_lock); } else { - hwgroup = kmalloc_node(sizeof(ide_hwgroup_t), GFP_KERNEL, + hwgroup = kmalloc_node(sizeof(ide_hwgroup_t), + GFP_KERNEL | __GFP_ZERO, hwif_to_node(hwif->drives[0].hwif)); if (!hwgroup) goto out_up; hwif->hwgroup = hwgroup; - memset(hwgroup, 0, sizeof(ide_hwgroup_t)); hwgroup->hwif = hwif->next = hwif; hwgroup->rq = NULL; hwgroup->handler = NULL; diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 8cd7694593c9..077fb674a96d 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1049,13 +1049,9 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device unsigned long flags; ide_driver_t *drv; void __user *p = (void __user *)arg; - int err, (*setfunc)(ide_drive_t *, int); + int err = 0, (*setfunc)(ide_drive_t *, int); u8 *val; - err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, bdev->bd_disk, cmd, p); - if (err != -ENOTTY) - return err; - switch (cmd) { case HDIO_GET_32BIT: val = &drive->io_32bit; goto read_val; case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val; @@ -1175,6 +1171,10 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device return 0; } + case CDROMEJECT: + case CDROMCLOSETRAY: + return scsi_cmd_ioctl(file, bdev->bd_disk->queue, bdev->bd_disk, cmd, p); + case HDIO_GET_BUSSTATE: if (!capable(CAP_SYS_ADMIN)) return -EACCES; diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c index 6e935d7c63fd..c2e29571b007 100644 --- a/drivers/ide/mips/swarm.c +++ b/drivers/ide/mips/swarm.c @@ -165,12 +165,11 @@ static int __devinit swarm_ide_init_module(void) goto out; } - if (!(pldev = kmalloc(sizeof (*pldev), GFP_KERNEL))) { + if (!(pldev = kzalloc(sizeof (*pldev), GFP_KERNEL))) { err = -ENOMEM; goto out_unregister_driver; } - memset (pldev, 0, sizeof (*pldev)); pldev->name = swarm_ide_string; pldev->id = 0; pldev->dev.release = swarm_ide_platform_release; diff --git a/drivers/ieee1394/ieee1394_core.c b/drivers/ieee1394/ieee1394_core.c index 0fc8c6e559e4..ee45259573c8 100644 --- a/drivers/ieee1394/ieee1394_core.c +++ b/drivers/ieee1394/ieee1394_core.c @@ -30,6 +30,7 @@ #include <linux/moduleparam.h> #include <linux/bitops.h> #include <linux/kdev_t.h> +#include <linux/freezer.h> #include <linux/suspend.h> #include <linux/kthread.h> #include <linux/preempt.h> @@ -1128,8 +1129,6 @@ static int hpsbpkt_thread(void *__hi) struct list_head tmp; int may_schedule; - current->flags |= PF_NOFREEZE; - while (!kthread_should_stop()) { INIT_LIST_HEAD(&tmp); diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 51a12062ed36..2ffd53461db6 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -1699,6 +1699,7 @@ static int nodemgr_host_thread(void *__hi) unsigned int g, generation = 0; int i, reset_cycles = 0; + set_freezable(); /* Setup our device-model entries */ nodemgr_create_host_dev_files(host); diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index a91001c59b69..c5c33d35f87d 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -295,10 +295,9 @@ int rdma_resolve_ip(struct rdma_addr_client *client, struct addr_req *req; int ret = 0; - req = kmalloc(sizeof *req, GFP_KERNEL); + req = kzalloc(sizeof *req, GFP_KERNEL); if (!req) return -ENOMEM; - memset(req, 0, sizeof *req); if (src_addr) memcpy(&req->src_addr, src_addr, ip_addr_size(src_addr)); diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 9820c67ba47d..4df269f5d9ac 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3374,7 +3374,7 @@ int ib_cm_init_qp_attr(struct ib_cm_id *cm_id, } EXPORT_SYMBOL(ib_cm_init_qp_attr); -void cm_get_ack_delay(struct cm_device *cm_dev) +static void cm_get_ack_delay(struct cm_device *cm_dev) { struct ib_device_attr attr; diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 23af7a032a03..9ffb9987450a 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -573,7 +573,7 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr, break; case RDMA_TRANSPORT_IWARP: if (!id_priv->cm_id.iw) { - qp_attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE; + qp_attr->qp_access_flags = 0; *qp_attr_mask = IB_QP_STATE | IB_QP_ACCESS_FLAGS; } else ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr, diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index 3b41dc0c39dd..9574088f0d4e 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -229,9 +229,8 @@ static void *alloc_ep(int size, gfp_t gfp) { struct iwch_ep_common *epc; - epc = kmalloc(size, gfp); + epc = kzalloc(size, gfp); if (epc) { - memset(epc, 0, size); kref_init(&epc->kref); spin_lock_init(&epc->lock); init_waitqueue_head(&epc->waitq); @@ -1914,6 +1913,7 @@ int iwch_create_listen(struct iw_cm_id *cm_id, int backlog) fail3: cxgb3_free_stid(ep->com.tdev, ep->stid); fail2: + cm_id->rem_ref(cm_id); put_ep(&ep->com); fail1: out: diff --git a/drivers/infiniband/hw/ehca/ehca_av.c b/drivers/infiniband/hw/ehca/ehca_av.c index 3cd6bf3402d1..e53a97af1260 100644 --- a/drivers/infiniband/hw/ehca/ehca_av.c +++ b/drivers/infiniband/hw/ehca/ehca_av.c @@ -79,7 +79,7 @@ struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) av->av.ipd = (ah_mult > 0) ? ((ehca_mult - 1) / ah_mult) : 0; } else - av->av.ipd = ehca_static_rate; + av->av.ipd = ehca_static_rate; av->av.lnh = ah_attr->ah_flags; av->av.grh.word_0 = EHCA_BMASK_SET(GRH_IPVERSION_MASK, 6); diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index daf823ea1ace..043e4fb23fb0 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -204,11 +204,11 @@ struct ehca_mr { spinlock_t mrlock; enum ehca_mr_flag flags; - u32 num_pages; /* number of MR pages */ - u32 num_4k; /* number of 4k "page" portions to form MR */ + u32 num_kpages; /* number of kernel pages */ + u32 num_hwpages; /* number of hw pages to form MR */ int acl; /* ACL (stored here for usage in reregister) */ u64 *start; /* virtual start address (stored here for */ - /* usage in reregister) */ + /* usage in reregister) */ u64 size; /* size (stored here for usage in reregister) */ u32 fmr_page_size; /* page size for FMR */ u32 fmr_max_pages; /* max pages for FMR */ @@ -217,9 +217,6 @@ struct ehca_mr { /* fw specific data */ struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */ struct h_galpas galpas; - /* data for userspace bridge */ - u32 nr_of_pages; - void *pagearray; }; struct ehca_mw { @@ -241,26 +238,29 @@ enum ehca_mr_pgi_type { struct ehca_mr_pginfo { enum ehca_mr_pgi_type type; - u64 num_pages; - u64 page_cnt; - u64 num_4k; /* number of 4k "page" portions */ - u64 page_4k_cnt; /* counter for 4k "page" portions */ - u64 next_4k; /* next 4k "page" portion in buffer/chunk/listelem */ - - /* type EHCA_MR_PGI_PHYS section */ - int num_phys_buf; - struct ib_phys_buf *phys_buf_array; - u64 next_buf; - - /* type EHCA_MR_PGI_USER section */ - struct ib_umem *region; - struct ib_umem_chunk *next_chunk; - u64 next_nmap; - - /* type EHCA_MR_PGI_FMR section */ - u64 *page_list; - u64 next_listelem; - /* next_4k also used within EHCA_MR_PGI_FMR */ + u64 num_kpages; + u64 kpage_cnt; + u64 num_hwpages; /* number of hw pages */ + u64 hwpage_cnt; /* counter for hw pages */ + u64 next_hwpage; /* next hw page in buffer/chunk/listelem */ + + union { + struct { /* type EHCA_MR_PGI_PHYS section */ + int num_phys_buf; + struct ib_phys_buf *phys_buf_array; + u64 next_buf; + } phy; + struct { /* type EHCA_MR_PGI_USER section */ + struct ib_umem *region; + struct ib_umem_chunk *next_chunk; + u64 next_nmap; + } usr; + struct { /* type EHCA_MR_PGI_FMR section */ + u64 fmr_pgsize; + u64 *page_list; + u64 next_listelem; + } fmr; + } u; }; /* output parameters for MR/FMR hipz calls */ @@ -391,6 +391,6 @@ struct ehca_alloc_qp_parms { int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp); int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num); -struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int qp_num); +struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int qp_num); #endif diff --git a/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h b/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h index fb3df5c271e7..1798e6466bd0 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h +++ b/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h @@ -154,83 +154,83 @@ struct hcp_modify_qp_control_block { u32 reserved_70_127[58]; /* 70 */ }; -#define MQPCB_MASK_QKEY EHCA_BMASK_IBM(0,0) -#define MQPCB_MASK_SEND_PSN EHCA_BMASK_IBM(2,2) -#define MQPCB_MASK_RECEIVE_PSN EHCA_BMASK_IBM(3,3) -#define MQPCB_MASK_PRIM_PHYS_PORT EHCA_BMASK_IBM(4,4) -#define MQPCB_PRIM_PHYS_PORT EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_ALT_PHYS_PORT EHCA_BMASK_IBM(5,5) -#define MQPCB_MASK_PRIM_P_KEY_IDX EHCA_BMASK_IBM(6,6) -#define MQPCB_PRIM_P_KEY_IDX EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_ALT_P_KEY_IDX EHCA_BMASK_IBM(7,7) -#define MQPCB_MASK_RDMA_ATOMIC_CTRL EHCA_BMASK_IBM(8,8) -#define MQPCB_MASK_QP_STATE EHCA_BMASK_IBM(9,9) -#define MQPCB_QP_STATE EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES EHCA_BMASK_IBM(11,11) -#define MQPCB_MASK_PATH_MIGRATION_STATE EHCA_BMASK_IBM(12,12) -#define MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP EHCA_BMASK_IBM(13,13) -#define MQPCB_MASK_DEST_QP_NR EHCA_BMASK_IBM(14,14) -#define MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD EHCA_BMASK_IBM(15,15) -#define MQPCB_MASK_SERVICE_LEVEL EHCA_BMASK_IBM(16,16) -#define MQPCB_MASK_SEND_GRH_FLAG EHCA_BMASK_IBM(17,17) -#define MQPCB_MASK_RETRY_COUNT EHCA_BMASK_IBM(18,18) -#define MQPCB_MASK_TIMEOUT EHCA_BMASK_IBM(19,19) -#define MQPCB_MASK_PATH_MTU EHCA_BMASK_IBM(20,20) -#define MQPCB_PATH_MTU EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_MAX_STATIC_RATE EHCA_BMASK_IBM(21,21) -#define MQPCB_MAX_STATIC_RATE EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_DLID EHCA_BMASK_IBM(22,22) -#define MQPCB_DLID EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_RNR_RETRY_COUNT EHCA_BMASK_IBM(23,23) -#define MQPCB_RNR_RETRY_COUNT EHCA_BMASK_IBM(29,31) -#define MQPCB_MASK_SOURCE_PATH_BITS EHCA_BMASK_IBM(24,24) -#define MQPCB_SOURCE_PATH_BITS EHCA_BMASK_IBM(25,31) -#define MQPCB_MASK_TRAFFIC_CLASS EHCA_BMASK_IBM(25,25) -#define MQPCB_TRAFFIC_CLASS EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_HOP_LIMIT EHCA_BMASK_IBM(26,26) -#define MQPCB_HOP_LIMIT EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_SOURCE_GID_IDX EHCA_BMASK_IBM(27,27) -#define MQPCB_SOURCE_GID_IDX EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_FLOW_LABEL EHCA_BMASK_IBM(28,28) -#define MQPCB_FLOW_LABEL EHCA_BMASK_IBM(12,31) -#define MQPCB_MASK_DEST_GID EHCA_BMASK_IBM(30,30) -#define MQPCB_MASK_SERVICE_LEVEL_AL EHCA_BMASK_IBM(31,31) -#define MQPCB_SERVICE_LEVEL_AL EHCA_BMASK_IBM(28,31) -#define MQPCB_MASK_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(32,32) -#define MQPCB_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(31,31) -#define MQPCB_MASK_RETRY_COUNT_AL EHCA_BMASK_IBM(33,33) -#define MQPCB_RETRY_COUNT_AL EHCA_BMASK_IBM(29,31) -#define MQPCB_MASK_TIMEOUT_AL EHCA_BMASK_IBM(34,34) -#define MQPCB_TIMEOUT_AL EHCA_BMASK_IBM(27,31) -#define MQPCB_MASK_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(35,35) -#define MQPCB_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_DLID_AL EHCA_BMASK_IBM(36,36) -#define MQPCB_DLID_AL EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(37,37) -#define MQPCB_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(29,31) -#define MQPCB_MASK_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(38,38) -#define MQPCB_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(25,31) -#define MQPCB_MASK_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(39,39) -#define MQPCB_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_HOP_LIMIT_AL EHCA_BMASK_IBM(40,40) -#define MQPCB_HOP_LIMIT_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(41,41) -#define MQPCB_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(24,31) -#define MQPCB_MASK_FLOW_LABEL_AL EHCA_BMASK_IBM(42,42) -#define MQPCB_FLOW_LABEL_AL EHCA_BMASK_IBM(12,31) -#define MQPCB_MASK_DEST_GID_AL EHCA_BMASK_IBM(44,44) -#define MQPCB_MASK_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(45,45) -#define MQPCB_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(46,46) -#define MQPCB_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(47,47) -#define MQPCB_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(31,31) -#define MQPCB_QP_NUMBER EHCA_BMASK_IBM(8,31) -#define MQPCB_MASK_QP_ENABLE EHCA_BMASK_IBM(48,48) -#define MQPCB_QP_ENABLE EHCA_BMASK_IBM(31,31) -#define MQPCB_MASK_CURR_SRQ_LIMIT EHCA_BMASK_IBM(49,49) -#define MQPCB_CURR_SRQ_LIMIT EHCA_BMASK_IBM(16,31) -#define MQPCB_MASK_QP_AFF_ASYN_EV_LOG_REG EHCA_BMASK_IBM(50,50) -#define MQPCB_MASK_SHARED_RQ_HNDL EHCA_BMASK_IBM(51,51) +#define MQPCB_MASK_QKEY EHCA_BMASK_IBM( 0, 0) +#define MQPCB_MASK_SEND_PSN EHCA_BMASK_IBM( 2, 2) +#define MQPCB_MASK_RECEIVE_PSN EHCA_BMASK_IBM( 3, 3) +#define MQPCB_MASK_PRIM_PHYS_PORT EHCA_BMASK_IBM( 4, 4) +#define MQPCB_PRIM_PHYS_PORT EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_ALT_PHYS_PORT EHCA_BMASK_IBM( 5, 5) +#define MQPCB_MASK_PRIM_P_KEY_IDX EHCA_BMASK_IBM( 6, 6) +#define MQPCB_PRIM_P_KEY_IDX EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_ALT_P_KEY_IDX EHCA_BMASK_IBM( 7, 7) +#define MQPCB_MASK_RDMA_ATOMIC_CTRL EHCA_BMASK_IBM( 8, 8) +#define MQPCB_MASK_QP_STATE EHCA_BMASK_IBM( 9, 9) +#define MQPCB_QP_STATE EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES EHCA_BMASK_IBM(11, 11) +#define MQPCB_MASK_PATH_MIGRATION_STATE EHCA_BMASK_IBM(12, 12) +#define MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP EHCA_BMASK_IBM(13, 13) +#define MQPCB_MASK_DEST_QP_NR EHCA_BMASK_IBM(14, 14) +#define MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD EHCA_BMASK_IBM(15, 15) +#define MQPCB_MASK_SERVICE_LEVEL EHCA_BMASK_IBM(16, 16) +#define MQPCB_MASK_SEND_GRH_FLAG EHCA_BMASK_IBM(17, 17) +#define MQPCB_MASK_RETRY_COUNT EHCA_BMASK_IBM(18, 18) +#define MQPCB_MASK_TIMEOUT EHCA_BMASK_IBM(19, 19) +#define MQPCB_MASK_PATH_MTU EHCA_BMASK_IBM(20, 20) +#define MQPCB_PATH_MTU EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_MAX_STATIC_RATE EHCA_BMASK_IBM(21, 21) +#define MQPCB_MAX_STATIC_RATE EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_DLID EHCA_BMASK_IBM(22, 22) +#define MQPCB_DLID EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_RNR_RETRY_COUNT EHCA_BMASK_IBM(23, 23) +#define MQPCB_RNR_RETRY_COUNT EHCA_BMASK_IBM(29, 31) +#define MQPCB_MASK_SOURCE_PATH_BITS EHCA_BMASK_IBM(24, 24) +#define MQPCB_SOURCE_PATH_BITS EHCA_BMASK_IBM(25, 31) +#define MQPCB_MASK_TRAFFIC_CLASS EHCA_BMASK_IBM(25, 25) +#define MQPCB_TRAFFIC_CLASS EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_HOP_LIMIT EHCA_BMASK_IBM(26, 26) +#define MQPCB_HOP_LIMIT EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_SOURCE_GID_IDX EHCA_BMASK_IBM(27, 27) +#define MQPCB_SOURCE_GID_IDX EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_FLOW_LABEL EHCA_BMASK_IBM(28, 28) +#define MQPCB_FLOW_LABEL EHCA_BMASK_IBM(12, 31) +#define MQPCB_MASK_DEST_GID EHCA_BMASK_IBM(30, 30) +#define MQPCB_MASK_SERVICE_LEVEL_AL EHCA_BMASK_IBM(31, 31) +#define MQPCB_SERVICE_LEVEL_AL EHCA_BMASK_IBM(28, 31) +#define MQPCB_MASK_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(32, 32) +#define MQPCB_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(31, 31) +#define MQPCB_MASK_RETRY_COUNT_AL EHCA_BMASK_IBM(33, 33) +#define MQPCB_RETRY_COUNT_AL EHCA_BMASK_IBM(29, 31) +#define MQPCB_MASK_TIMEOUT_AL EHCA_BMASK_IBM(34, 34) +#define MQPCB_TIMEOUT_AL EHCA_BMASK_IBM(27, 31) +#define MQPCB_MASK_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(35, 35) +#define MQPCB_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_DLID_AL EHCA_BMASK_IBM(36, 36) +#define MQPCB_DLID_AL EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(37, 37) +#define MQPCB_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(29, 31) +#define MQPCB_MASK_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(38, 38) +#define MQPCB_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(25, 31) +#define MQPCB_MASK_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(39, 39) +#define MQPCB_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_HOP_LIMIT_AL EHCA_BMASK_IBM(40, 40) +#define MQPCB_HOP_LIMIT_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(41, 41) +#define MQPCB_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(24, 31) +#define MQPCB_MASK_FLOW_LABEL_AL EHCA_BMASK_IBM(42, 42) +#define MQPCB_FLOW_LABEL_AL EHCA_BMASK_IBM(12, 31) +#define MQPCB_MASK_DEST_GID_AL EHCA_BMASK_IBM(44, 44) +#define MQPCB_MASK_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(45, 45) +#define MQPCB_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(46, 46) +#define MQPCB_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(47, 47) +#define MQPCB_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(31, 31) +#define MQPCB_QP_NUMBER EHCA_BMASK_IBM( 8, 31) +#define MQPCB_MASK_QP_ENABLE EHCA_BMASK_IBM(48, 48) +#define MQPCB_QP_ENABLE EHCA_BMASK_IBM(31, 31) +#define MQPCB_MASK_CURR_SRQ_LIMIT EHCA_BMASK_IBM(49, 49) +#define MQPCB_CURR_SRQ_LIMIT EHCA_BMASK_IBM(16, 31) +#define MQPCB_MASK_QP_AFF_ASYN_EV_LOG_REG EHCA_BMASK_IBM(50, 50) +#define MQPCB_MASK_SHARED_RQ_HNDL EHCA_BMASK_IBM(51, 51) #endif /* __EHCA_CLASSES_PSERIES_H__ */ diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/infiniband/hw/ehca/ehca_cq.c index 01d4a148bd71..9e87883b561a 100644 --- a/drivers/infiniband/hw/ehca/ehca_cq.c +++ b/drivers/infiniband/hw/ehca/ehca_cq.c @@ -97,7 +97,7 @@ int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int real_qp_num) return ret; } -struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int real_qp_num) +struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int real_qp_num) { struct ehca_qp *ret = NULL; unsigned int key = real_qp_num & (QP_HASHTAB_LEN-1); diff --git a/drivers/infiniband/hw/ehca/ehca_eq.c b/drivers/infiniband/hw/ehca/ehca_eq.c index 4961eb88827c..4825975f88cf 100644 --- a/drivers/infiniband/hw/ehca/ehca_eq.c +++ b/drivers/infiniband/hw/ehca/ehca_eq.c @@ -96,7 +96,8 @@ int ehca_create_eq(struct ehca_shca *shca, for (i = 0; i < nr_pages; i++) { u64 rpage; - if (!(vpage = ipz_qpageit_get_inc(&eq->ipz_queue))) { + vpage = ipz_qpageit_get_inc(&eq->ipz_queue); + if (!vpage) { ret = H_RESOURCE; goto create_eq_exit2; } diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c index bbd3c6a5822f..fc19ef9fd963 100644 --- a/drivers/infiniband/hw/ehca/ehca_hca.c +++ b/drivers/infiniband/hw/ehca/ehca_hca.c @@ -127,6 +127,7 @@ int ehca_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) { int ret = 0; + u64 h_ret; struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); struct hipz_query_port *rblock; @@ -137,7 +138,8 @@ int ehca_query_port(struct ib_device *ibdev, return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_port1; @@ -197,6 +199,7 @@ int ehca_query_sma_attr(struct ehca_shca *shca, u8 port, struct ehca_sma_attr *attr) { int ret = 0; + u64 h_ret; struct hipz_query_port *rblock; rblock = ehca_alloc_fw_ctrlblock(GFP_ATOMIC); @@ -205,7 +208,8 @@ int ehca_query_sma_attr(struct ehca_shca *shca, return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_sma_attr1; @@ -230,9 +234,11 @@ query_sma_attr1: int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) { int ret = 0; - struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); + u64 h_ret; + struct ehca_shca *shca; struct hipz_query_port *rblock; + shca = container_of(ibdev, struct ehca_shca, ib_device); if (index > 16) { ehca_err(&shca->ib_device, "Invalid index: %x.", index); return -EINVAL; @@ -244,7 +250,8 @@ int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_pkey1; @@ -262,6 +269,7 @@ int ehca_query_gid(struct ib_device *ibdev, u8 port, int index, union ib_gid *gid) { int ret = 0; + u64 h_ret; struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); struct hipz_query_port *rblock; @@ -277,7 +285,8 @@ int ehca_query_gid(struct ib_device *ibdev, u8 port, return -ENOMEM; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + h_ret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto query_gid1; @@ -302,11 +311,12 @@ int ehca_modify_port(struct ib_device *ibdev, struct ib_port_modify *props) { int ret = 0; - struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); + struct ehca_shca *shca; struct hipz_query_port *rblock; u32 cap; u64 hret; + shca = container_of(ibdev, struct ehca_shca, ib_device); if ((props->set_port_cap_mask | props->clr_port_cap_mask) & ~allowed_port_caps) { ehca_err(&shca->ib_device, "Non-changeable bits set in masks " @@ -325,7 +335,8 @@ int ehca_modify_port(struct ib_device *ibdev, goto modify_port1; } - if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + hret = hipz_h_query_port(shca->ipz_hca_handle, port, rblock); + if (hret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't query port properties"); ret = -EINVAL; goto modify_port2; @@ -337,7 +348,8 @@ int ehca_modify_port(struct ib_device *ibdev, hret = hipz_h_modify_port(shca->ipz_hca_handle, port, cap, props->init_type, port_modify_mask); if (hret != H_SUCCESS) { - ehca_err(&shca->ib_device, "Modify port failed hret=%lx", hret); + ehca_err(&shca->ib_device, "Modify port failed hret=%lx", + hret); ret = -EINVAL; } diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c index 96eba3830754..4fb01fcb63ae 100644 --- a/drivers/infiniband/hw/ehca/ehca_irq.c +++ b/drivers/infiniband/hw/ehca/ehca_irq.c @@ -49,26 +49,26 @@ #include "hipz_fns.h" #include "ipz_pt_fn.h" -#define EQE_COMPLETION_EVENT EHCA_BMASK_IBM(1,1) -#define EQE_CQ_QP_NUMBER EHCA_BMASK_IBM(8,31) -#define EQE_EE_IDENTIFIER EHCA_BMASK_IBM(2,7) -#define EQE_CQ_NUMBER EHCA_BMASK_IBM(8,31) -#define EQE_QP_NUMBER EHCA_BMASK_IBM(8,31) -#define EQE_QP_TOKEN EHCA_BMASK_IBM(32,63) -#define EQE_CQ_TOKEN EHCA_BMASK_IBM(32,63) - -#define NEQE_COMPLETION_EVENT EHCA_BMASK_IBM(1,1) -#define NEQE_EVENT_CODE EHCA_BMASK_IBM(2,7) -#define NEQE_PORT_NUMBER EHCA_BMASK_IBM(8,15) -#define NEQE_PORT_AVAILABILITY EHCA_BMASK_IBM(16,16) -#define NEQE_DISRUPTIVE EHCA_BMASK_IBM(16,16) - -#define ERROR_DATA_LENGTH EHCA_BMASK_IBM(52,63) -#define ERROR_DATA_TYPE EHCA_BMASK_IBM(0,7) +#define EQE_COMPLETION_EVENT EHCA_BMASK_IBM( 1, 1) +#define EQE_CQ_QP_NUMBER EHCA_BMASK_IBM( 8, 31) +#define EQE_EE_IDENTIFIER EHCA_BMASK_IBM( 2, 7) +#define EQE_CQ_NUMBER EHCA_BMASK_IBM( 8, 31) +#define EQE_QP_NUMBER EHCA_BMASK_IBM( 8, 31) +#define EQE_QP_TOKEN EHCA_BMASK_IBM(32, 63) +#define EQE_CQ_TOKEN EHCA_BMASK_IBM(32, 63) + +#define NEQE_COMPLETION_EVENT EHCA_BMASK_IBM( 1, 1) +#define NEQE_EVENT_CODE EHCA_BMASK_IBM( 2, 7) +#define NEQE_PORT_NUMBER EHCA_BMASK_IBM( 8, 15) +#define NEQE_PORT_AVAILABILITY EHCA_BMASK_IBM(16, 16) +#define NEQE_DISRUPTIVE EHCA_BMASK_IBM(16, 16) + +#define ERROR_DATA_LENGTH EHCA_BMASK_IBM(52, 63) +#define ERROR_DATA_TYPE EHCA_BMASK_IBM( 0, 7) static void queue_comp_task(struct ehca_cq *__cq); -static struct ehca_comp_pool* pool; +static struct ehca_comp_pool *pool; #ifdef CONFIG_HOTPLUG_CPU static struct notifier_block comp_pool_callback_nb; #endif @@ -85,8 +85,8 @@ static inline void comp_event_callback(struct ehca_cq *cq) return; } -static void print_error_data(struct ehca_shca * shca, void* data, - u64* rblock, int length) +static void print_error_data(struct ehca_shca *shca, void *data, + u64 *rblock, int length) { u64 type = EHCA_BMASK_GET(ERROR_DATA_TYPE, rblock[2]); u64 resource = rblock[1]; @@ -94,7 +94,7 @@ static void print_error_data(struct ehca_shca * shca, void* data, switch (type) { case 0x1: /* Queue Pair */ { - struct ehca_qp *qp = (struct ehca_qp*)data; + struct ehca_qp *qp = (struct ehca_qp *)data; /* only print error data if AER is set */ if (rblock[6] == 0) @@ -107,7 +107,7 @@ static void print_error_data(struct ehca_shca * shca, void* data, } case 0x4: /* Completion Queue */ { - struct ehca_cq *cq = (struct ehca_cq*)data; + struct ehca_cq *cq = (struct ehca_cq *)data; ehca_err(&shca->ib_device, "CQ 0x%x (resource=%lx) has errors.", @@ -572,7 +572,7 @@ void ehca_tasklet_eq(unsigned long data) ehca_process_eq((struct ehca_shca*)data, 1); } -static inline int find_next_online_cpu(struct ehca_comp_pool* pool) +static inline int find_next_online_cpu(struct ehca_comp_pool *pool) { int cpu; unsigned long flags; @@ -636,7 +636,7 @@ static void queue_comp_task(struct ehca_cq *__cq) __queue_comp_task(__cq, cct); } -static void run_comp_task(struct ehca_cpu_comp_task* cct) +static void run_comp_task(struct ehca_cpu_comp_task *cct) { struct ehca_cq *cq; unsigned long flags; @@ -666,12 +666,12 @@ static void run_comp_task(struct ehca_cpu_comp_task* cct) static int comp_task(void *__cct) { - struct ehca_cpu_comp_task* cct = __cct; + struct ehca_cpu_comp_task *cct = __cct; int cql_empty; DECLARE_WAITQUEUE(wait, current); set_current_state(TASK_INTERRUPTIBLE); - while(!kthread_should_stop()) { + while (!kthread_should_stop()) { add_wait_queue(&cct->wait_queue, &wait); spin_lock_irq(&cct->task_lock); @@ -745,7 +745,7 @@ static void take_over_work(struct ehca_comp_pool *pool, list_splice_init(&cct->cq_list, &list); - while(!list_empty(&list)) { + while (!list_empty(&list)) { cq = list_entry(cct->cq_list.next, struct ehca_cq, entry); list_del(&cq->entry); @@ -768,7 +768,7 @@ static int comp_pool_callback(struct notifier_block *nfb, case CPU_UP_PREPARE: case CPU_UP_PREPARE_FROZEN: ehca_gen_dbg("CPU: %x (CPU_PREPARE)", cpu); - if(!create_comp_task(pool, cpu)) { + if (!create_comp_task(pool, cpu)) { ehca_gen_err("Can't create comp_task for cpu: %x", cpu); return NOTIFY_BAD; } @@ -838,7 +838,7 @@ int ehca_create_comp_pool(void) #ifdef CONFIG_HOTPLUG_CPU comp_pool_callback_nb.notifier_call = comp_pool_callback; - comp_pool_callback_nb.priority =0; + comp_pool_callback_nb.priority = 0; register_cpu_notifier(&comp_pool_callback_nb); #endif diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h index 77aeca6a2c2f..dce503bb7d6b 100644 --- a/drivers/infiniband/hw/ehca/ehca_iverbs.h +++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h @@ -81,8 +81,9 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, int num_phys_buf, int mr_access_flags, u64 *iova_start); -struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt, - int mr_access_flags, struct ib_udata *udata); +struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int mr_access_flags, + struct ib_udata *udata); int ehca_rereg_phys_mr(struct ib_mr *mr, int mr_rereg_mask, @@ -192,7 +193,7 @@ void ehca_poll_eqs(unsigned long data); void *ehca_alloc_fw_ctrlblock(gfp_t flags); void ehca_free_fw_ctrlblock(void *ptr); #else -#define ehca_alloc_fw_ctrlblock(flags) ((void *) get_zeroed_page(flags)) +#define ehca_alloc_fw_ctrlblock(flags) ((void *)get_zeroed_page(flags)) #define ehca_free_fw_ctrlblock(ptr) free_page((unsigned long)(ptr)) #endif diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c index 28ba2dd24216..36377c6db3d4 100644 --- a/drivers/infiniband/hw/ehca/ehca_main.c +++ b/drivers/infiniband/hw/ehca/ehca_main.c @@ -107,7 +107,7 @@ static DEFINE_SPINLOCK(shca_list_lock); static struct timer_list poll_eqs_timer; #ifdef CONFIG_PPC_64K_PAGES -static struct kmem_cache *ctblk_cache = NULL; +static struct kmem_cache *ctblk_cache; void *ehca_alloc_fw_ctrlblock(gfp_t flags) { @@ -200,8 +200,8 @@ static void ehca_destroy_slab_caches(void) #endif } -#define EHCA_HCAAVER EHCA_BMASK_IBM(32,39) -#define EHCA_REVID EHCA_BMASK_IBM(40,63) +#define EHCA_HCAAVER EHCA_BMASK_IBM(32, 39) +#define EHCA_REVID EHCA_BMASK_IBM(40, 63) static struct cap_descr { u64 mask; @@ -263,22 +263,27 @@ int ehca_sense_attributes(struct ehca_shca *shca) ehca_gen_dbg(" ... hardware version=%x:%x", hcaaver, revid); - if ((hcaaver == 1) && (revid == 0)) - shca->hw_level = 0x11; - else if ((hcaaver == 1) && (revid == 1)) - shca->hw_level = 0x12; - else if ((hcaaver == 1) && (revid == 2)) - shca->hw_level = 0x13; - else if ((hcaaver == 2) && (revid == 0)) - shca->hw_level = 0x21; - else if ((hcaaver == 2) && (revid == 0x10)) - shca->hw_level = 0x22; - else { + if (hcaaver == 1) { + if (revid <= 3) + shca->hw_level = 0x10 | (revid + 1); + else + shca->hw_level = 0x14; + } else if (hcaaver == 2) { + if (revid == 0) + shca->hw_level = 0x21; + else if (revid == 0x10) + shca->hw_level = 0x22; + else if (revid == 0x20 || revid == 0x21) + shca->hw_level = 0x23; + } + + if (!shca->hw_level) { ehca_gen_warn("unknown hardware version" " - assuming default level"); shca->hw_level = 0x22; } - } + } else + shca->hw_level = ehca_hw_level; ehca_gen_dbg(" ... hardware level=%x", shca->hw_level); shca->sport[0].rate = IB_RATE_30_GBPS; @@ -290,7 +295,7 @@ int ehca_sense_attributes(struct ehca_shca *shca) if (EHCA_BMASK_GET(hca_cap_descr[i].mask, shca->hca_cap)) ehca_gen_dbg(" %s", hca_cap_descr[i].descr); - port = (struct hipz_query_port *) rblock; + port = (struct hipz_query_port *)rblock; h_ret = hipz_h_query_port(shca->ipz_hca_handle, 1, port); if (h_ret != H_SUCCESS) { ehca_gen_err("Cannot query port properties. h_ret=%lx", @@ -439,7 +444,7 @@ static int ehca_create_aqp1(struct ehca_shca *shca, u32 port) return -EPERM; } - ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void*)(-1), 10, 0); + ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void *)(-1), 10, 0); if (IS_ERR(ibcq)) { ehca_err(&shca->ib_device, "Cannot create AQP1 CQ."); return PTR_ERR(ibcq); @@ -666,7 +671,7 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev, } /* create internal protection domain */ - ibpd = ehca_alloc_pd(&shca->ib_device, (void*)(-1), NULL); + ibpd = ehca_alloc_pd(&shca->ib_device, (void *)(-1), NULL); if (IS_ERR(ibpd)) { ehca_err(&shca->ib_device, "Cannot create internal PD."); ret = PTR_ERR(ibpd); @@ -863,18 +868,21 @@ int __init ehca_module_init(void) printk(KERN_INFO "eHCA Infiniband Device Driver " "(Rel.: SVNEHCA_0023)\n"); - if ((ret = ehca_create_comp_pool())) { + ret = ehca_create_comp_pool(); + if (ret) { ehca_gen_err("Cannot create comp pool."); return ret; } - if ((ret = ehca_create_slab_caches())) { + ret = ehca_create_slab_caches(); + if (ret) { ehca_gen_err("Cannot create SLAB caches"); ret = -ENOMEM; goto module_init1; } - if ((ret = ibmebus_register_driver(&ehca_driver))) { + ret = ibmebus_register_driver(&ehca_driver); + if (ret) { ehca_gen_err("Cannot register eHCA device driver"); ret = -EINVAL; goto module_init2; diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c index add79bd44e39..6262c5462d50 100644 --- a/drivers/infiniband/hw/ehca/ehca_mrmw.c +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c @@ -48,6 +48,11 @@ #include "hcp_if.h" #include "hipz_hw.h" +#define NUM_CHUNKS(length, chunk_size) \ + (((length) + (chunk_size - 1)) / (chunk_size)) +/* max number of rpages (per hcall register_rpages) */ +#define MAX_RPAGES 512 + static struct kmem_cache *mr_cache; static struct kmem_cache *mw_cache; @@ -56,9 +61,9 @@ static struct ehca_mr *ehca_mr_new(void) struct ehca_mr *me; me = kmem_cache_zalloc(mr_cache, GFP_KERNEL); - if (me) { + if (me) spin_lock_init(&me->mrlock); - } else + else ehca_gen_err("alloc failed"); return me; @@ -74,9 +79,9 @@ static struct ehca_mw *ehca_mw_new(void) struct ehca_mw *me; me = kmem_cache_zalloc(mw_cache, GFP_KERNEL); - if (me) { + if (me) spin_lock_init(&me->mwlock); - } else + else ehca_gen_err("alloc failed"); return me; @@ -106,11 +111,12 @@ struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags) goto get_dma_mr_exit0; } - ret = ehca_reg_maxmr(shca, e_maxmr, (u64*)KERNELBASE, + ret = ehca_reg_maxmr(shca, e_maxmr, (u64 *)KERNELBASE, mr_access_flags, e_pd, &e_maxmr->ib.ib_mr.lkey, &e_maxmr->ib.ib_mr.rkey); if (ret) { + ehca_mr_delete(e_maxmr); ib_mr = ERR_PTR(ret); goto get_dma_mr_exit0; } @@ -144,9 +150,6 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); u64 size; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ if ((num_phys_buf <= 0) || !phys_buf_array) { ehca_err(pd->device, "bad input values: num_phys_buf=%x " @@ -190,12 +193,6 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, goto reg_phys_mr_exit0; } - /* determine number of MR pages */ - num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - /* register MR on HCA */ if (ehca_mr_is_maxmr(size, iova_start)) { e_mr->flags |= EHCA_MR_FLAG_MAXMR; @@ -207,13 +204,22 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, goto reg_phys_mr_exit1; } } else { - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = num_phys_buf; - pginfo.phys_buf_array = phys_buf_array; - pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / - EHCA_PAGESIZE); + struct ehca_mr_pginfo pginfo; + u32 num_kpages; + u32 num_hwpages; + + num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size, + PAGE_SIZE); + num_hwpages = NUM_CHUNKS(((u64)iova_start % EHCA_PAGESIZE) + + size, EHCA_PAGESIZE); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = num_phys_buf; + pginfo.u.phy.phys_buf_array = phys_buf_array; + pginfo.next_hwpage = (((u64)iova_start & ~PAGE_MASK) / + EHCA_PAGESIZE); ret = ehca_reg_mr(shca, e_mr, iova_start, size, mr_access_flags, e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, @@ -240,18 +246,19 @@ reg_phys_mr_exit0: /*----------------------------------------------------------------------*/ -struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt, - int mr_access_flags, struct ib_udata *udata) +struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int mr_access_flags, + struct ib_udata *udata) { struct ib_mr *ib_mr; struct ehca_mr *e_mr; struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, ib_device); struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; int ret; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ + u32 num_kpages; + u32 num_hwpages; if (!pd) { ehca_gen_err("bad pd=%p", pd); @@ -289,7 +296,7 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt e_mr->umem = ib_umem_get(pd->uobject->context, start, length, mr_access_flags); if (IS_ERR(e_mr->umem)) { - ib_mr = (void *) e_mr->umem; + ib_mr = (void *)e_mr->umem; goto reg_user_mr_exit1; } @@ -301,23 +308,24 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt } /* determine number of MR pages */ - num_pages_mr = (((virt % PAGE_SIZE) + length + PAGE_SIZE - 1) / - PAGE_SIZE); - num_pages_4k = (((virt % EHCA_PAGESIZE) + length + EHCA_PAGESIZE - 1) / - EHCA_PAGESIZE); + num_kpages = NUM_CHUNKS((virt % PAGE_SIZE) + length, PAGE_SIZE); + num_hwpages = NUM_CHUNKS((virt % EHCA_PAGESIZE) + length, + EHCA_PAGESIZE); /* register MR on HCA */ - pginfo.type = EHCA_MR_PGI_USER; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.region = e_mr->umem; - pginfo.next_4k = e_mr->umem->offset / EHCA_PAGESIZE; - pginfo.next_chunk = list_prepare_entry(pginfo.next_chunk, - (&e_mr->umem->chunk_list), - list); - - ret = ehca_reg_mr(shca, e_mr, (u64*) virt, length, mr_access_flags, e_pd, - &pginfo, &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_USER; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.usr.region = e_mr->umem; + pginfo.next_hwpage = e_mr->umem->offset / EHCA_PAGESIZE; + pginfo.u.usr.next_chunk = list_prepare_entry(pginfo.u.usr.next_chunk, + (&e_mr->umem->chunk_list), + list); + + ret = ehca_reg_mr(shca, e_mr, (u64 *)virt, length, mr_access_flags, + e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, + &e_mr->ib.ib_mr.rkey); if (ret) { ib_mr = ERR_PTR(ret); goto reg_user_mr_exit2; @@ -360,9 +368,9 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, struct ehca_pd *new_pd; u32 tmp_lkey, tmp_rkey; unsigned long sl_flags; - u32 num_pages_mr = 0; - u32 num_pages_4k = 0; /* 4k portion "pages" */ - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + u32 num_kpages = 0; + u32 num_hwpages = 0; + struct ehca_mr_pginfo pginfo; u32 cur_pid = current->tgid; if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && @@ -414,7 +422,7 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, goto rereg_phys_mr_exit0; } if (!phys_buf_array || num_phys_buf <= 0) { - ehca_err(mr->device, "bad input values: mr_rereg_mask=%x" + ehca_err(mr->device, "bad input values mr_rereg_mask=%x" " phys_buf_array=%p num_phys_buf=%x", mr_rereg_mask, phys_buf_array, num_phys_buf); ret = -EINVAL; @@ -438,10 +446,10 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, /* set requested values dependent on rereg request */ spin_lock_irqsave(&e_mr->mrlock, sl_flags); - new_start = e_mr->start; /* new == old address */ - new_size = e_mr->size; /* new == old length */ - new_acl = e_mr->acl; /* new == old access control */ - new_pd = container_of(mr->pd,struct ehca_pd,ib_pd); /*new == old PD*/ + new_start = e_mr->start; + new_size = e_mr->size; + new_acl = e_mr->acl; + new_pd = container_of(mr->pd, struct ehca_pd, ib_pd); if (mr_rereg_mask & IB_MR_REREG_TRANS) { new_start = iova_start; /* change address */ @@ -458,17 +466,18 @@ int ehca_rereg_phys_mr(struct ib_mr *mr, ret = -EINVAL; goto rereg_phys_mr_exit1; } - num_pages_mr = ((((u64)new_start % PAGE_SIZE) + new_size + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)new_start % EHCA_PAGESIZE) + new_size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = num_phys_buf; - pginfo.phys_buf_array = phys_buf_array; - pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / - EHCA_PAGESIZE); + num_kpages = NUM_CHUNKS(((u64)new_start % PAGE_SIZE) + + new_size, PAGE_SIZE); + num_hwpages = NUM_CHUNKS(((u64)new_start % EHCA_PAGESIZE) + + new_size, EHCA_PAGESIZE); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = num_phys_buf; + pginfo.u.phy.phys_buf_array = phys_buf_array; + pginfo.next_hwpage = (((u64)iova_start & ~PAGE_MASK) / + EHCA_PAGESIZE); } if (mr_rereg_mask & IB_MR_REREG_ACCESS) new_acl = mr_access_flags; @@ -510,7 +519,7 @@ int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); u32 cur_pid = current->tgid; unsigned long sl_flags; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && (my_pd->ownpid != cur_pid)) { @@ -536,14 +545,14 @@ int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) "hca_hndl=%lx mr_hndl=%lx lkey=%x", h_ret, mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, mr->lkey); - ret = ehca_mrmw_map_hrc_query_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto query_mr_exit1; } - mr_attr->pd = mr->pd; + mr_attr->pd = mr->pd; mr_attr->device_virt_addr = hipzout.vaddr; - mr_attr->size = hipzout.len; - mr_attr->lkey = hipzout.lkey; - mr_attr->rkey = hipzout.rkey; + mr_attr->size = hipzout.len; + mr_attr->lkey = hipzout.lkey; + mr_attr->rkey = hipzout.rkey; ehca_mrmw_reverse_map_acl(&hipzout.acl, &mr_attr->mr_access_flags); query_mr_exit1: @@ -596,7 +605,7 @@ int ehca_dereg_mr(struct ib_mr *mr) "e_mr=%p hca_hndl=%lx mr_hndl=%lx mr->lkey=%x", h_ret, shca, e_mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, mr->lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto dereg_mr_exit0; } @@ -622,7 +631,7 @@ struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, ib_device); - struct ehca_mw_hipzout_parms hipzout = {{0},0}; + struct ehca_mw_hipzout_parms hipzout; e_mw = ehca_mw_new(); if (!e_mw) { @@ -636,7 +645,7 @@ struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) ehca_err(pd->device, "hipz_mw_allocate failed, h_ret=%lx " "shca=%p hca_hndl=%lx mw=%p", h_ret, shca, shca->ipz_hca_handle.handle, e_mw); - ib_mw = ERR_PTR(ehca_mrmw_map_hrc_alloc(h_ret)); + ib_mw = ERR_PTR(ehca2ib_return_code(h_ret)); goto alloc_mw_exit1; } /* successful MW allocation */ @@ -679,7 +688,7 @@ int ehca_dealloc_mw(struct ib_mw *mw) "mw=%p rkey=%x hca_hndl=%lx mw_hndl=%lx", h_ret, shca, mw, mw->rkey, shca->ipz_hca_handle.handle, e_mw->ipz_mw_handle.handle); - return ehca_mrmw_map_hrc_free_mw(h_ret); + return ehca2ib_return_code(h_ret); } /* successful deallocation */ ehca_mw_delete(e_mw); @@ -699,7 +708,7 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, struct ehca_mr *e_fmr; int ret; u32 tmp_lkey, tmp_rkey; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; /* check other parameters */ if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && @@ -745,6 +754,7 @@ struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, e_fmr->flags |= EHCA_MR_FLAG_FMR; /* register MR on HCA */ + memset(&pginfo, 0, sizeof(pginfo)); ret = ehca_reg_mr(shca, e_fmr, NULL, fmr_attr->max_pages * (1 << fmr_attr->page_shift), mr_access_flags, e_pd, &pginfo, @@ -783,7 +793,7 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, container_of(fmr->device, struct ehca_shca, ib_device); struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); struct ehca_pd *e_pd = container_of(fmr->pd, struct ehca_pd, ib_pd); - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; u32 tmp_lkey, tmp_rkey; if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { @@ -809,14 +819,16 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, fmr, e_fmr->fmr_map_cnt, e_fmr->fmr_max_maps); } - pginfo.type = EHCA_MR_PGI_FMR; - pginfo.num_pages = list_len; - pginfo.num_4k = list_len * (e_fmr->fmr_page_size / EHCA_PAGESIZE); - pginfo.page_list = page_list; - pginfo.next_4k = ((iova & (e_fmr->fmr_page_size-1)) / - EHCA_PAGESIZE); + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_FMR; + pginfo.num_kpages = list_len; + pginfo.num_hwpages = list_len * (e_fmr->fmr_page_size / EHCA_PAGESIZE); + pginfo.u.fmr.page_list = page_list; + pginfo.next_hwpage = ((iova & (e_fmr->fmr_page_size-1)) / + EHCA_PAGESIZE); + pginfo.u.fmr.fmr_pgsize = e_fmr->fmr_page_size; - ret = ehca_rereg_mr(shca, e_fmr, (u64*)iova, + ret = ehca_rereg_mr(shca, e_fmr, (u64 *)iova, list_len * e_fmr->fmr_page_size, e_fmr->acl, e_pd, &pginfo, &tmp_lkey, &tmp_rkey); if (ret) @@ -831,8 +843,7 @@ int ehca_map_phys_fmr(struct ib_fmr *fmr, map_phys_fmr_exit0: if (ret) ehca_err(fmr->device, "ret=%x fmr=%p page_list=%p list_len=%x " - "iova=%lx", - ret, fmr, page_list, list_len, iova); + "iova=%lx", ret, fmr, page_list, list_len, iova); return ret; } /* end ehca_map_phys_fmr() */ @@ -922,7 +933,7 @@ int ehca_dealloc_fmr(struct ib_fmr *fmr) "hca_hndl=%lx fmr_hndl=%lx fmr->lkey=%x", h_ret, e_fmr, shca->ipz_hca_handle.handle, e_fmr->ipz_mr_handle.handle, fmr->lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto free_fmr_exit0; } /* successful deregistration */ @@ -950,12 +961,12 @@ int ehca_reg_mr(struct ehca_shca *shca, int ret; u64 h_ret; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); if (ehca_use_hp_mr == 1) - hipz_acl |= 0x00000001; + hipz_acl |= 0x00000001; h_ret = hipz_h_alloc_resource_mr(shca->ipz_hca_handle, e_mr, (u64)iova_start, size, hipz_acl, @@ -963,7 +974,7 @@ int ehca_reg_mr(struct ehca_shca *shca, if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "hipz_alloc_mr failed, h_ret=%lx " "hca_hndl=%lx", h_ret, shca->ipz_hca_handle.handle); - ret = ehca_mrmw_map_hrc_alloc(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_reg_mr_exit0; } @@ -974,11 +985,11 @@ int ehca_reg_mr(struct ehca_shca *shca, goto ehca_reg_mr_exit1; /* successful registration */ - e_mr->num_pages = pginfo->num_pages; - e_mr->num_4k = pginfo->num_4k; - e_mr->start = iova_start; - e_mr->size = size; - e_mr->acl = acl; + e_mr->num_kpages = pginfo->num_kpages; + e_mr->num_hwpages = pginfo->num_hwpages; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; *lkey = hipzout.lkey; *rkey = hipzout.rkey; return 0; @@ -988,10 +999,10 @@ ehca_reg_mr_exit1: if (h_ret != H_SUCCESS) { ehca_err(&shca->ib_device, "h_ret=%lx shca=%p e_mr=%p " "iova_start=%p size=%lx acl=%x e_pd=%p lkey=%x " - "pginfo=%p num_pages=%lx num_4k=%lx ret=%x", + "pginfo=%p num_kpages=%lx num_hwpages=%lx ret=%x", h_ret, shca, e_mr, iova_start, size, acl, e_pd, - hipzout.lkey, pginfo, pginfo->num_pages, - pginfo->num_4k, ret); + hipzout.lkey, pginfo, pginfo->num_kpages, + pginfo->num_hwpages, ret); ehca_err(&shca->ib_device, "internal error in ehca_reg_mr, " "not recoverable"); } @@ -999,9 +1010,9 @@ ehca_reg_mr_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " - "num_pages=%lx num_4k=%lx", + "num_kpages=%lx num_hwpages=%lx", ret, shca, e_mr, iova_start, size, acl, e_pd, pginfo, - pginfo->num_pages, pginfo->num_4k); + pginfo->num_kpages, pginfo->num_hwpages); return ret; } /* end ehca_reg_mr() */ @@ -1026,24 +1037,24 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, } /* max 512 pages per shot */ - for (i = 0; i < ((pginfo->num_4k + 512 - 1) / 512); i++) { + for (i = 0; i < NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES); i++) { - if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { - rnum = pginfo->num_4k % 512; /* last shot */ + if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { + rnum = pginfo->num_hwpages % MAX_RPAGES; /* last shot */ if (rnum == 0) - rnum = 512; /* last shot is full */ + rnum = MAX_RPAGES; /* last shot is full */ } else - rnum = 512; + rnum = MAX_RPAGES; - if (rnum > 1) { - ret = ehca_set_pagebuf(e_mr, pginfo, rnum, kpage); - if (ret) { - ehca_err(&shca->ib_device, "ehca_set_pagebuf " + ret = ehca_set_pagebuf(pginfo, rnum, kpage); + if (ret) { + ehca_err(&shca->ib_device, "ehca_set_pagebuf " "bad rc, ret=%x rnum=%x kpage=%p", ret, rnum, kpage); - ret = -EFAULT; - goto ehca_reg_mr_rpages_exit1; - } + goto ehca_reg_mr_rpages_exit1; + } + + if (rnum > 1) { rpage = virt_to_abs(kpage); if (!rpage) { ehca_err(&shca->ib_device, "kpage=%p i=%x", @@ -1051,21 +1062,14 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, ret = -EFAULT; goto ehca_reg_mr_rpages_exit1; } - } else { /* rnum==1 */ - ret = ehca_set_pagebuf_1(e_mr, pginfo, &rpage); - if (ret) { - ehca_err(&shca->ib_device, "ehca_set_pagebuf_1 " - "bad rc, ret=%x i=%x", ret, i); - ret = -EFAULT; - goto ehca_reg_mr_rpages_exit1; - } - } + } else + rpage = *kpage; h_ret = hipz_h_register_rpage_mr(shca->ipz_hca_handle, e_mr, 0, /* pagesize 4k */ 0, rpage, rnum); - if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { + if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { /* * check for 'registration complete'==H_SUCCESS * and for 'page registered'==H_PAGE_REGISTERED @@ -1078,7 +1082,7 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, e_mr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_rrpg_last(h_ret); + ret = ehca2ib_return_code(h_ret); break; } else ret = 0; @@ -1089,7 +1093,7 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca, e_mr->ib.ib_mr.lkey, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle); - ret = ehca_mrmw_map_hrc_rrpg_notlast(h_ret); + ret = ehca2ib_return_code(h_ret); break; } else ret = 0; @@ -1101,8 +1105,8 @@ ehca_reg_mr_rpages_exit1: ehca_reg_mr_rpages_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p pginfo=%p " - "num_pages=%lx num_4k=%lx", ret, shca, e_mr, pginfo, - pginfo->num_pages, pginfo->num_4k); + "num_kpages=%lx num_hwpages=%lx", ret, shca, e_mr, + pginfo, pginfo->num_kpages, pginfo->num_hwpages); return ret; } /* end ehca_reg_mr_rpages() */ @@ -1124,7 +1128,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, u64 *kpage; u64 rpage; struct ehca_mr_pginfo pginfo_save; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); @@ -1137,12 +1141,12 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, } pginfo_save = *pginfo; - ret = ehca_set_pagebuf(e_mr, pginfo, pginfo->num_4k, kpage); + ret = ehca_set_pagebuf(pginfo, pginfo->num_hwpages, kpage); if (ret) { ehca_err(&shca->ib_device, "set pagebuf failed, e_mr=%p " - "pginfo=%p type=%x num_pages=%lx num_4k=%lx kpage=%p", - e_mr, pginfo, pginfo->type, pginfo->num_pages, - pginfo->num_4k,kpage); + "pginfo=%p type=%x num_kpages=%lx num_hwpages=%lx " + "kpage=%p", e_mr, pginfo, pginfo->type, + pginfo->num_kpages, pginfo->num_hwpages, kpage); goto ehca_rereg_mr_rereg1_exit1; } rpage = virt_to_abs(kpage); @@ -1164,7 +1168,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, "(Rereg1), h_ret=%lx e_mr=%p", h_ret, e_mr); *pginfo = pginfo_save; ret = -EAGAIN; - } else if ((u64*)hipzout.vaddr != iova_start) { + } else if ((u64 *)hipzout.vaddr != iova_start) { ehca_err(&shca->ib_device, "PHYP changed iova_start in " "rereg_pmr, iova_start=%p iova_start_out=%lx e_mr=%p " "mr_handle=%lx lkey=%x lkey_out=%x", iova_start, @@ -1176,11 +1180,11 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, * successful reregistration * note: start and start_out are identical for eServer HCAs */ - e_mr->num_pages = pginfo->num_pages; - e_mr->num_4k = pginfo->num_4k; - e_mr->start = iova_start; - e_mr->size = size; - e_mr->acl = acl; + e_mr->num_kpages = pginfo->num_kpages; + e_mr->num_hwpages = pginfo->num_hwpages; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; *lkey = hipzout.lkey; *rkey = hipzout.rkey; } @@ -1190,9 +1194,9 @@ ehca_rereg_mr_rereg1_exit1: ehca_rereg_mr_rereg1_exit0: if ( ret && (ret != -EAGAIN) ) ehca_err(&shca->ib_device, "ret=%x lkey=%x rkey=%x " - "pginfo=%p num_pages=%lx num_4k=%lx", - ret, *lkey, *rkey, pginfo, pginfo->num_pages, - pginfo->num_4k); + "pginfo=%p num_kpages=%lx num_hwpages=%lx", + ret, *lkey, *rkey, pginfo, pginfo->num_kpages, + pginfo->num_hwpages); return ret; } /* end ehca_rereg_mr_rereg1() */ @@ -1214,10 +1218,12 @@ int ehca_rereg_mr(struct ehca_shca *shca, int rereg_3_hcall = 0; /* 1: use 3 hipz calls for reregistration */ /* first determine reregistration hCall(s) */ - if ((pginfo->num_4k > 512) || (e_mr->num_4k > 512) || - (pginfo->num_4k > e_mr->num_4k)) { - ehca_dbg(&shca->ib_device, "Rereg3 case, pginfo->num_4k=%lx " - "e_mr->num_4k=%x", pginfo->num_4k, e_mr->num_4k); + if ((pginfo->num_hwpages > MAX_RPAGES) || + (e_mr->num_hwpages > MAX_RPAGES) || + (pginfo->num_hwpages > e_mr->num_hwpages)) { + ehca_dbg(&shca->ib_device, "Rereg3 case, " + "pginfo->num_hwpages=%lx e_mr->num_hwpages=%x", + pginfo->num_hwpages, e_mr->num_hwpages); rereg_1_hcall = 0; rereg_3_hcall = 1; } @@ -1253,7 +1259,7 @@ int ehca_rereg_mr(struct ehca_shca *shca, h_ret, e_mr, shca->ipz_hca_handle.handle, e_mr->ipz_mr_handle.handle, e_mr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_rereg_mr_exit0; } /* clean ehca_mr_t, without changing struct ib_mr and lock */ @@ -1281,9 +1287,9 @@ ehca_rereg_mr_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " - "num_pages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " + "num_kpages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " "rereg_3_hcall=%x", ret, shca, e_mr, iova_start, size, - acl, e_pd, pginfo, pginfo->num_pages, *lkey, *rkey, + acl, e_pd, pginfo, pginfo->num_kpages, *lkey, *rkey, rereg_1_hcall, rereg_3_hcall); return ret; } /* end ehca_rereg_mr() */ @@ -1295,97 +1301,86 @@ int ehca_unmap_one_fmr(struct ehca_shca *shca, { int ret = 0; u64 h_ret; - int rereg_1_hcall = 1; /* 1: use hipz_mr_reregister directly */ - int rereg_3_hcall = 0; /* 1: use 3 hipz calls for unmapping */ struct ehca_pd *e_pd = container_of(e_fmr->ib.ib_fmr.pd, struct ehca_pd, ib_pd); struct ehca_mr save_fmr; u32 tmp_lkey, tmp_rkey; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_pginfo pginfo; + struct ehca_mr_hipzout_parms hipzout; + struct ehca_mr save_mr; - /* first check if reregistration hCall can be used for unmap */ - if (e_fmr->fmr_max_pages > 512) { - rereg_1_hcall = 0; - rereg_3_hcall = 1; - } - - if (rereg_1_hcall) { + if (e_fmr->fmr_max_pages <= MAX_RPAGES) { /* * note: after using rereg hcall with len=0, * rereg hcall must be used again for registering pages */ h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_fmr, 0, 0, 0, e_pd->fw_pd, 0, &hipzout); - if (h_ret != H_SUCCESS) { - /* - * should not happen, because length checked above, - * FMRs are not shared and no MW bound to FMRs - */ - ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " - "(Rereg1), h_ret=%lx e_fmr=%p hca_hndl=%lx " - "mr_hndl=%lx lkey=%x lkey_out=%x", - h_ret, e_fmr, shca->ipz_hca_handle.handle, - e_fmr->ipz_mr_handle.handle, - e_fmr->ib.ib_fmr.lkey, hipzout.lkey); - rereg_3_hcall = 1; - } else { + if (h_ret == H_SUCCESS) { /* successful reregistration */ e_fmr->start = NULL; e_fmr->size = 0; tmp_lkey = hipzout.lkey; tmp_rkey = hipzout.rkey; + return 0; } + /* + * should not happen, because length checked above, + * FMRs are not shared and no MW bound to FMRs + */ + ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " + "(Rereg1), h_ret=%lx e_fmr=%p hca_hndl=%lx " + "mr_hndl=%lx lkey=%x lkey_out=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey, hipzout.lkey); + /* try free and rereg */ } - if (rereg_3_hcall) { - struct ehca_mr save_mr; - - /* first free old FMR */ - h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); - if (h_ret != H_SUCCESS) { - ehca_err(&shca->ib_device, "hipz_free_mr failed, " - "h_ret=%lx e_fmr=%p hca_hndl=%lx mr_hndl=%lx " - "lkey=%x", - h_ret, e_fmr, shca->ipz_hca_handle.handle, - e_fmr->ipz_mr_handle.handle, - e_fmr->ib.ib_fmr.lkey); - ret = ehca_mrmw_map_hrc_free_mr(h_ret); - goto ehca_unmap_one_fmr_exit0; - } - /* clean ehca_mr_t, without changing lock */ - save_fmr = *e_fmr; - ehca_mr_deletenew(e_fmr); - - /* set some MR values */ - e_fmr->flags = save_fmr.flags; - e_fmr->fmr_page_size = save_fmr.fmr_page_size; - e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; - e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; - e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; - e_fmr->acl = save_fmr.acl; - - pginfo.type = EHCA_MR_PGI_FMR; - pginfo.num_pages = 0; - pginfo.num_4k = 0; - ret = ehca_reg_mr(shca, e_fmr, NULL, - (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), - e_fmr->acl, e_pd, &pginfo, &tmp_lkey, - &tmp_rkey); - if (ret) { - u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; - memcpy(&e_fmr->flags, &(save_mr.flags), - sizeof(struct ehca_mr) - offset); - goto ehca_unmap_one_fmr_exit0; - } + /* first free old FMR */ + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_free_mr failed, " + "h_ret=%lx e_fmr=%p hca_hndl=%lx mr_hndl=%lx " + "lkey=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey); + ret = ehca2ib_return_code(h_ret); + goto ehca_unmap_one_fmr_exit0; + } + /* clean ehca_mr_t, without changing lock */ + save_fmr = *e_fmr; + ehca_mr_deletenew(e_fmr); + + /* set some MR values */ + e_fmr->flags = save_fmr.flags; + e_fmr->fmr_page_size = save_fmr.fmr_page_size; + e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; + e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; + e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; + e_fmr->acl = save_fmr.acl; + + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_FMR; + pginfo.num_kpages = 0; + pginfo.num_hwpages = 0; + ret = ehca_reg_mr(shca, e_fmr, NULL, + (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), + e_fmr->acl, e_pd, &pginfo, &tmp_lkey, + &tmp_rkey); + if (ret) { + u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; + memcpy(&e_fmr->flags, &(save_mr.flags), + sizeof(struct ehca_mr) - offset); + goto ehca_unmap_one_fmr_exit0; } ehca_unmap_one_fmr_exit0: if (ret) ehca_err(&shca->ib_device, "ret=%x tmp_lkey=%x tmp_rkey=%x " - "fmr_max_pages=%x rereg_1_hcall=%x rereg_3_hcall=%x", - ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages, - rereg_1_hcall, rereg_3_hcall); + "fmr_max_pages=%x", + ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages); return ret; } /* end ehca_unmap_one_fmr() */ @@ -1403,7 +1398,7 @@ int ehca_reg_smr(struct ehca_shca *shca, int ret = 0; u64 h_ret; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); @@ -1419,15 +1414,15 @@ int ehca_reg_smr(struct ehca_shca *shca, shca->ipz_hca_handle.handle, e_origmr->ipz_mr_handle.handle, e_origmr->ib.ib_mr.lkey); - ret = ehca_mrmw_map_hrc_reg_smr(h_ret); + ret = ehca2ib_return_code(h_ret); goto ehca_reg_smr_exit0; } /* successful registration */ - e_newmr->num_pages = e_origmr->num_pages; - e_newmr->num_4k = e_origmr->num_4k; - e_newmr->start = iova_start; - e_newmr->size = e_origmr->size; - e_newmr->acl = acl; + e_newmr->num_kpages = e_origmr->num_kpages; + e_newmr->num_hwpages = e_origmr->num_hwpages; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; e_newmr->ipz_mr_handle = hipzout.handle; *lkey = hipzout.lkey; *rkey = hipzout.rkey; @@ -1453,10 +1448,10 @@ int ehca_reg_internal_maxmr( struct ehca_mr *e_mr; u64 *iova_start; u64 size_maxmr; - struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_pginfo pginfo; struct ib_phys_buf ib_pbuf; - u32 num_pages_mr; - u32 num_pages_4k; /* 4k portion "pages" */ + u32 num_kpages; + u32 num_hwpages; e_mr = ehca_mr_new(); if (!e_mr) { @@ -1468,28 +1463,29 @@ int ehca_reg_internal_maxmr( /* register internal max-MR on HCA */ size_maxmr = (u64)high_memory - PAGE_OFFSET; - iova_start = (u64*)KERNELBASE; + iova_start = (u64 *)KERNELBASE; ib_pbuf.addr = 0; ib_pbuf.size = size_maxmr; - num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size_maxmr + - PAGE_SIZE - 1) / PAGE_SIZE); - num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size_maxmr + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); - - pginfo.type = EHCA_MR_PGI_PHYS; - pginfo.num_pages = num_pages_mr; - pginfo.num_4k = num_pages_4k; - pginfo.num_phys_buf = 1; - pginfo.phys_buf_array = &ib_pbuf; + num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size_maxmr, + PAGE_SIZE); + num_hwpages = NUM_CHUNKS(((u64)iova_start % EHCA_PAGESIZE) + size_maxmr, + EHCA_PAGESIZE); + + memset(&pginfo, 0, sizeof(pginfo)); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_kpages = num_kpages; + pginfo.num_hwpages = num_hwpages; + pginfo.u.phy.num_phys_buf = 1; + pginfo.u.phy.phys_buf_array = &ib_pbuf; ret = ehca_reg_mr(shca, e_mr, iova_start, size_maxmr, 0, e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey); if (ret) { ehca_err(&shca->ib_device, "reg of internal max MR failed, " - "e_mr=%p iova_start=%p size_maxmr=%lx num_pages_mr=%x " - "num_pages_4k=%x", e_mr, iova_start, size_maxmr, - num_pages_mr, num_pages_4k); + "e_mr=%p iova_start=%p size_maxmr=%lx num_kpages=%x " + "num_hwpages=%x", e_mr, iova_start, size_maxmr, + num_kpages, num_hwpages); goto ehca_reg_internal_maxmr_exit1; } @@ -1524,7 +1520,7 @@ int ehca_reg_maxmr(struct ehca_shca *shca, u64 h_ret; struct ehca_mr *e_origmr = shca->maxmr; u32 hipz_acl; - struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + struct ehca_mr_hipzout_parms hipzout; ehca_mrmw_map_acl(acl, &hipz_acl); ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); @@ -1538,14 +1534,14 @@ int ehca_reg_maxmr(struct ehca_shca *shca, h_ret, e_origmr, shca->ipz_hca_handle.handle, e_origmr->ipz_mr_handle.handle, e_origmr->ib.ib_mr.lkey); - return ehca_mrmw_map_hrc_reg_smr(h_ret); + return ehca2ib_return_code(h_ret); } /* successful registration */ - e_newmr->num_pages = e_origmr->num_pages; - e_newmr->num_4k = e_origmr->num_4k; - e_newmr->start = iova_start; - e_newmr->size = e_origmr->size; - e_newmr->acl = acl; + e_newmr->num_kpages = e_origmr->num_kpages; + e_newmr->num_hwpages = e_origmr->num_hwpages; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; e_newmr->ipz_mr_handle = hipzout.handle; *lkey = hipzout.lkey; *rkey = hipzout.rkey; @@ -1677,299 +1673,187 @@ int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, /*----------------------------------------------------------------------*/ -/* setup page buffer from page info */ -int ehca_set_pagebuf(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u32 number, - u64 *kpage) +/* PAGE_SIZE >= pginfo->hwpage_size */ +static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) { int ret = 0; struct ib_umem_chunk *prev_chunk; struct ib_umem_chunk *chunk; - struct ib_phys_buf *pbuf; - u64 *fmrlist; - u64 num4k, pgaddr, offs4k; + u64 pgaddr; u32 i = 0; u32 j = 0; - if (pginfo->type == EHCA_MR_PGI_PHYS) { - /* loop over desired phys_buf_array entries */ - while (i < number) { - pbuf = pginfo->phys_buf_array + pginfo->next_buf; - num4k = ((pbuf->addr % EHCA_PAGESIZE) + pbuf->size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; - offs4k = (pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; - while (pginfo->next_4k < offs4k + num4k) { - /* sanity check */ - if ((pginfo->page_cnt >= pginfo->num_pages) || - (pginfo->page_4k_cnt >= pginfo->num_4k)) { - ehca_gen_err("page_cnt >= num_pages, " - "page_cnt=%lx " - "num_pages=%lx " - "page_4k_cnt=%lx " - "num_4k=%lx i=%x", - pginfo->page_cnt, - pginfo->num_pages, - pginfo->page_4k_cnt, - pginfo->num_4k, i); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - *kpage = phys_to_abs( - (pbuf->addr & EHCA_PAGEMASK) - + (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*kpage) && pbuf->addr ) { - ehca_gen_err("pbuf->addr=%lx " - "pbuf->size=%lx " - "next_4k=%lx", pbuf->addr, - pbuf->size, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) - (pginfo->page_cnt)++; - kpage++; - i++; - if (i >= number) break; - } - if (pginfo->next_4k >= offs4k + num4k) { - (pginfo->next_buf)++; - pginfo->next_4k = 0; - } - } - } else if (pginfo->type == EHCA_MR_PGI_USER) { - /* loop over desired chunk entries */ - chunk = pginfo->next_chunk; - prev_chunk = pginfo->next_chunk; - list_for_each_entry_continue(chunk, - (&(pginfo->region->chunk_list)), - list) { - for (i = pginfo->next_nmap; i < chunk->nmap; ) { - pgaddr = ( page_to_pfn(chunk->page_list[i].page) - << PAGE_SHIFT ); - *kpage = phys_to_abs(pgaddr + - (pginfo->next_4k * - EHCA_PAGESIZE)); - if ( !(*kpage) ) { - ehca_gen_err("pgaddr=%lx " - "chunk->page_list[i]=%lx " - "i=%x next_4k=%lx mr=%p", - pgaddr, - (u64)sg_dma_address( - &chunk-> - page_list[i]), - i, pginfo->next_4k, e_mr); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - kpage++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_nmap)++; - pginfo->next_4k = 0; - i++; - } - j++; - if (j >= number) break; - } - if ((pginfo->next_nmap >= chunk->nmap) && - (j >= number)) { - pginfo->next_nmap = 0; - prev_chunk = chunk; - break; - } else if (pginfo->next_nmap >= chunk->nmap) { - pginfo->next_nmap = 0; - prev_chunk = chunk; - } else if (j >= number) - break; - else - prev_chunk = chunk; - } - pginfo->next_chunk = - list_prepare_entry(prev_chunk, - (&(pginfo->region->chunk_list)), - list); - } else if (pginfo->type == EHCA_MR_PGI_FMR) { - /* loop over desired page_list entries */ - fmrlist = pginfo->page_list + pginfo->next_listelem; - for (i = 0; i < number; i++) { - *kpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + - pginfo->next_4k * EHCA_PAGESIZE); + /* loop over desired chunk entries */ + chunk = pginfo->u.usr.next_chunk; + prev_chunk = pginfo->u.usr.next_chunk; + list_for_each_entry_continue( + chunk, (&(pginfo->u.usr.region->chunk_list)), list) { + for (i = pginfo->u.usr.next_nmap; i < chunk->nmap; ) { + pgaddr = page_to_pfn(chunk->page_list[i].page) + << PAGE_SHIFT ; + *kpage = phys_to_abs(pgaddr + + (pginfo->next_hwpage * + EHCA_PAGESIZE)); if ( !(*kpage) ) { - ehca_gen_err("*fmrlist=%lx fmrlist=%p " - "next_listelem=%lx next_4k=%lx", - *fmrlist, fmrlist, - pginfo->next_listelem, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; + ehca_gen_err("pgaddr=%lx " + "chunk->page_list[i]=%lx " + "i=%x next_hwpage=%lx", + pgaddr, (u64)sg_dma_address( + &chunk->page_list[i]), + i, pginfo->next_hwpage); + return -EFAULT; } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; kpage++; - if (pginfo->next_4k % - (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_listelem)++; - fmrlist++; - pginfo->next_4k = 0; + if (pginfo->next_hwpage % + (PAGE_SIZE / EHCA_PAGESIZE) == 0) { + (pginfo->kpage_cnt)++; + (pginfo->u.usr.next_nmap)++; + pginfo->next_hwpage = 0; + i++; } + j++; + if (j >= number) break; } - } else { - ehca_gen_err("bad pginfo->type=%x", pginfo->type); - ret = -EFAULT; - goto ehca_set_pagebuf_exit0; + if ((pginfo->u.usr.next_nmap >= chunk->nmap) && + (j >= number)) { + pginfo->u.usr.next_nmap = 0; + prev_chunk = chunk; + break; + } else if (pginfo->u.usr.next_nmap >= chunk->nmap) { + pginfo->u.usr.next_nmap = 0; + prev_chunk = chunk; + } else if (j >= number) + break; + else + prev_chunk = chunk; } - -ehca_set_pagebuf_exit0: - if (ret) - ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " - "num_4k=%lx next_buf=%lx next_4k=%lx number=%x " - "kpage=%p page_cnt=%lx page_4k_cnt=%lx i=%x " - "next_listelem=%lx region=%p next_chunk=%p " - "next_nmap=%lx", ret, e_mr, pginfo, pginfo->type, - pginfo->num_pages, pginfo->num_4k, - pginfo->next_buf, pginfo->next_4k, number, kpage, - pginfo->page_cnt, pginfo->page_4k_cnt, i, - pginfo->next_listelem, pginfo->region, - pginfo->next_chunk, pginfo->next_nmap); + pginfo->u.usr.next_chunk = + list_prepare_entry(prev_chunk, + (&(pginfo->u.usr.region->chunk_list)), + list); return ret; -} /* end ehca_set_pagebuf() */ - -/*----------------------------------------------------------------------*/ +} -/* setup 1 page from page info page buffer */ -int ehca_set_pagebuf_1(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u64 *rpage) +int ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) { int ret = 0; - struct ib_phys_buf *tmp_pbuf; - u64 *fmrlist; - struct ib_umem_chunk *chunk; - struct ib_umem_chunk *prev_chunk; - u64 pgaddr, num4k, offs4k; - - if (pginfo->type == EHCA_MR_PGI_PHYS) { - /* sanity check */ - if ((pginfo->page_cnt >= pginfo->num_pages) || - (pginfo->page_4k_cnt >= pginfo->num_4k)) { - ehca_gen_err("page_cnt >= num_pages, page_cnt=%lx " - "num_pages=%lx page_4k_cnt=%lx num_4k=%lx", - pginfo->page_cnt, pginfo->num_pages, - pginfo->page_4k_cnt, pginfo->num_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - tmp_pbuf = pginfo->phys_buf_array + pginfo->next_buf; - num4k = ((tmp_pbuf->addr % EHCA_PAGESIZE) + tmp_pbuf->size + - EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; - offs4k = (tmp_pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; - *rpage = phys_to_abs((tmp_pbuf->addr & EHCA_PAGEMASK) + - (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*rpage) && tmp_pbuf->addr ) { - ehca_gen_err("tmp_pbuf->addr=%lx" - " tmp_pbuf->size=%lx next_4k=%lx", - tmp_pbuf->addr, tmp_pbuf->size, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % (PAGE_SIZE / EHCA_PAGESIZE) == 0) - (pginfo->page_cnt)++; - if (pginfo->next_4k >= offs4k + num4k) { - (pginfo->next_buf)++; - pginfo->next_4k = 0; - } - } else if (pginfo->type == EHCA_MR_PGI_USER) { - chunk = pginfo->next_chunk; - prev_chunk = pginfo->next_chunk; - list_for_each_entry_continue(chunk, - (&(pginfo->region->chunk_list)), - list) { - pgaddr = ( page_to_pfn(chunk->page_list[ - pginfo->next_nmap].page) - << PAGE_SHIFT); - *rpage = phys_to_abs(pgaddr + - (pginfo->next_4k * EHCA_PAGESIZE)); - if ( !(*rpage) ) { - ehca_gen_err("pgaddr=%lx chunk->page_list[]=%lx" - " next_nmap=%lx next_4k=%lx mr=%p", - pgaddr, (u64)sg_dma_address( - &chunk->page_list[ - pginfo-> - next_nmap]), - pginfo->next_nmap, pginfo->next_4k, - e_mr); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; - } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (PAGE_SIZE / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_nmap)++; - pginfo->next_4k = 0; + struct ib_phys_buf *pbuf; + u64 num_hw, offs_hw; + u32 i = 0; + + /* loop over desired phys_buf_array entries */ + while (i < number) { + pbuf = pginfo->u.phy.phys_buf_array + pginfo->u.phy.next_buf; + num_hw = NUM_CHUNKS((pbuf->addr % EHCA_PAGESIZE) + + pbuf->size, EHCA_PAGESIZE); + offs_hw = (pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; + while (pginfo->next_hwpage < offs_hw + num_hw) { + /* sanity check */ + if ((pginfo->kpage_cnt >= pginfo->num_kpages) || + (pginfo->hwpage_cnt >= pginfo->num_hwpages)) { + ehca_gen_err("kpage_cnt >= num_kpages, " + "kpage_cnt=%lx num_kpages=%lx " + "hwpage_cnt=%lx " + "num_hwpages=%lx i=%x", + pginfo->kpage_cnt, + pginfo->num_kpages, + pginfo->hwpage_cnt, + pginfo->num_hwpages, i); + return -EFAULT; } - if (pginfo->next_nmap >= chunk->nmap) { - pginfo->next_nmap = 0; - prev_chunk = chunk; + *kpage = phys_to_abs( + (pbuf->addr & EHCA_PAGEMASK) + + (pginfo->next_hwpage * EHCA_PAGESIZE)); + if ( !(*kpage) && pbuf->addr ) { + ehca_gen_err("pbuf->addr=%lx " + "pbuf->size=%lx " + "next_hwpage=%lx", pbuf->addr, + pbuf->size, + pginfo->next_hwpage); + return -EFAULT; } - break; + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; + if (pginfo->next_hwpage % + (PAGE_SIZE / EHCA_PAGESIZE) == 0) + (pginfo->kpage_cnt)++; + kpage++; + i++; + if (i >= number) break; + } + if (pginfo->next_hwpage >= offs_hw + num_hw) { + (pginfo->u.phy.next_buf)++; + pginfo->next_hwpage = 0; } - pginfo->next_chunk = - list_prepare_entry(prev_chunk, - (&(pginfo->region->chunk_list)), - list); - } else if (pginfo->type == EHCA_MR_PGI_FMR) { - fmrlist = pginfo->page_list + pginfo->next_listelem; - *rpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + - pginfo->next_4k * EHCA_PAGESIZE); - if ( !(*rpage) ) { + } + return ret; +} + +int ehca_set_pagebuf_fmr(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) +{ + int ret = 0; + u64 *fmrlist; + u32 i; + + /* loop over desired page_list entries */ + fmrlist = pginfo->u.fmr.page_list + pginfo->u.fmr.next_listelem; + for (i = 0; i < number; i++) { + *kpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + + pginfo->next_hwpage * EHCA_PAGESIZE); + if ( !(*kpage) ) { ehca_gen_err("*fmrlist=%lx fmrlist=%p " - "next_listelem=%lx next_4k=%lx", - *fmrlist, fmrlist, pginfo->next_listelem, - pginfo->next_4k); - ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; + "next_listelem=%lx next_hwpage=%lx", + *fmrlist, fmrlist, + pginfo->u.fmr.next_listelem, + pginfo->next_hwpage); + return -EFAULT; } - (pginfo->page_4k_cnt)++; - (pginfo->next_4k)++; - if (pginfo->next_4k % - (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { - (pginfo->page_cnt)++; - (pginfo->next_listelem)++; - pginfo->next_4k = 0; + (pginfo->hwpage_cnt)++; + (pginfo->next_hwpage)++; + kpage++; + if (pginfo->next_hwpage % + (pginfo->u.fmr.fmr_pgsize / EHCA_PAGESIZE) == 0) { + (pginfo->kpage_cnt)++; + (pginfo->u.fmr.next_listelem)++; + fmrlist++; + pginfo->next_hwpage = 0; } - } else { + } + return ret; +} + +/* setup page buffer from page info */ +int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) +{ + int ret; + + switch (pginfo->type) { + case EHCA_MR_PGI_PHYS: + ret = ehca_set_pagebuf_phys(pginfo, number, kpage); + break; + case EHCA_MR_PGI_USER: + ret = ehca_set_pagebuf_user1(pginfo, number, kpage); + break; + case EHCA_MR_PGI_FMR: + ret = ehca_set_pagebuf_fmr(pginfo, number, kpage); + break; + default: ehca_gen_err("bad pginfo->type=%x", pginfo->type); ret = -EFAULT; - goto ehca_set_pagebuf_1_exit0; + break; } - -ehca_set_pagebuf_1_exit0: - if (ret) - ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " - "num_4k=%lx next_buf=%lx next_4k=%lx rpage=%p " - "page_cnt=%lx page_4k_cnt=%lx next_listelem=%lx " - "region=%p next_chunk=%p next_nmap=%lx", ret, e_mr, - pginfo, pginfo->type, pginfo->num_pages, - pginfo->num_4k, pginfo->next_buf, pginfo->next_4k, - rpage, pginfo->page_cnt, pginfo->page_4k_cnt, - pginfo->next_listelem, pginfo->region, - pginfo->next_chunk, pginfo->next_nmap); return ret; -} /* end ehca_set_pagebuf_1() */ +} /* end ehca_set_pagebuf() */ /*----------------------------------------------------------------------*/ @@ -1982,7 +1866,7 @@ int ehca_mr_is_maxmr(u64 size, { /* a MR is treated as max-MR only if it fits following: */ if ((size == ((u64)high_memory - PAGE_OFFSET)) && - (iova_start == (void*)KERNELBASE)) { + (iova_start == (void *)KERNELBASE)) { ehca_gen_dbg("this is a max-MR"); return 1; } else @@ -2042,196 +1926,23 @@ void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, /*----------------------------------------------------------------------*/ /* - * map HIPZ rc to IB retcodes for MR/MW allocations - * Used for hipz_mr_reg_alloc and hipz_mw_alloc. - */ -int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ - case H_CONSTRAINED: /* resource constraint */ - case H_NO_MEM: - return -ENOMEM; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_alloc() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for MR register rpage - * Used for hipz_h_register_rpage_mr at registering last page - */ -int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* registration complete */ - return 0; - case H_PAGE_REGISTERED: /* page registered */ - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ -/* case H_QT_PARM: invalid queue type */ - case H_PARAMETER: /* - * invalid logical address, - * or count zero or greater 512 - */ - case H_TABLE_FULL: /* page table full */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_rrpg_last() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for MR register rpage - * Used for hipz_h_register_rpage_mr at registering one page, but not last page - */ -int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_PAGE_REGISTERED: /* page registered */ - return 0; - case H_SUCCESS: /* registration complete */ - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ -/* case H_QT_PARM: invalid queue type */ - case H_PARAMETER: /* - * invalid logical address, - * or count zero or greater 512 - */ - case H_TABLE_FULL: /* page table full */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_rrpg_notlast() */ - -/*----------------------------------------------------------------------*/ - -/* map HIPZ rc to IB retcodes for MR query. Used for hipz_mr_query. */ -int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_query_mr() */ - -/*----------------------------------------------------------------------*/ -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for freeing MR resource - * Used for hipz_h_free_resource_mr - */ -int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* resource freed */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_R_STATE: /* invalid resource state */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_RESOURCE: /* Resource in use */ - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_free_mr() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for freeing MW resource - * Used for hipz_h_free_resource_mw - */ -int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* resource freed */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_R_STATE: /* invalid resource state */ - case H_HARDWARE: /* HCA not operational */ - return -EINVAL; - case H_RESOURCE: /* Resource in use */ - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_free_mw() */ - -/*----------------------------------------------------------------------*/ - -/* - * map HIPZ rc to IB retcodes for SMR registrations - * Used for hipz_h_register_smr. - */ -int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc) -{ - switch (hipz_rc) { - case H_SUCCESS: /* successful completion */ - return 0; - case H_ADAPTER_PARM: /* invalid adapter handle */ - case H_RH_PARM: /* invalid resource handle */ - case H_MEM_PARM: /* invalid MR virtual address */ - case H_MEM_ACCESS_PARM: /* invalid access controls */ - case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ - return -EINVAL; - case H_BUSY: /* long busy */ - return -EBUSY; - default: - return -EINVAL; - } -} /* end ehca_mrmw_map_hrc_reg_smr() */ - -/*----------------------------------------------------------------------*/ - -/* * MR destructor and constructor * used in Reregister MR verb, sets all fields in ehca_mr_t to 0, * except struct ib_mr and spinlock */ void ehca_mr_deletenew(struct ehca_mr *mr) { - mr->flags = 0; - mr->num_pages = 0; - mr->num_4k = 0; - mr->acl = 0; - mr->start = NULL; + mr->flags = 0; + mr->num_kpages = 0; + mr->num_hwpages = 0; + mr->acl = 0; + mr->start = NULL; mr->fmr_page_size = 0; mr->fmr_max_pages = 0; - mr->fmr_max_maps = 0; - mr->fmr_map_cnt = 0; + mr->fmr_max_maps = 0; + mr->fmr_map_cnt = 0; memset(&mr->ipz_mr_handle, 0, sizeof(mr->ipz_mr_handle)); memset(&mr->galpas, 0, sizeof(mr->galpas)); - mr->nr_of_pages = 0; - mr->pagearray = NULL; } /* end ehca_mr_deletenew() */ int ehca_init_mrmw_cache(void) diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.h b/drivers/infiniband/hw/ehca/ehca_mrmw.h index d936e40a5748..24f13fe3708b 100644 --- a/drivers/infiniband/hw/ehca/ehca_mrmw.h +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.h @@ -101,15 +101,10 @@ int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, u64 *page_list, int list_len); -int ehca_set_pagebuf(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, +int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, u32 number, u64 *kpage); -int ehca_set_pagebuf_1(struct ehca_mr *e_mr, - struct ehca_mr_pginfo *pginfo, - u64 *rpage); - int ehca_mr_is_maxmr(u64 size, u64 *iova_start); @@ -121,20 +116,6 @@ void ehca_mrmw_set_pgsize_hipz_acl(u32 *hipz_acl); void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, int *ib_acl); -int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc); - -int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc); - void ehca_mr_deletenew(struct ehca_mr *mr); #endif /*_EHCA_MRMW_H_*/ diff --git a/drivers/infiniband/hw/ehca/ehca_qes.h b/drivers/infiniband/hw/ehca/ehca_qes.h index 8707d297ce4c..818803057ebf 100644 --- a/drivers/infiniband/hw/ehca/ehca_qes.h +++ b/drivers/infiniband/hw/ehca/ehca_qes.h @@ -53,13 +53,13 @@ struct ehca_vsgentry { u32 length; }; -#define GRH_FLAG_MASK EHCA_BMASK_IBM(7,7) -#define GRH_IPVERSION_MASK EHCA_BMASK_IBM(0,3) -#define GRH_TCLASS_MASK EHCA_BMASK_IBM(4,12) -#define GRH_FLOWLABEL_MASK EHCA_BMASK_IBM(13,31) -#define GRH_PAYLEN_MASK EHCA_BMASK_IBM(32,47) -#define GRH_NEXTHEADER_MASK EHCA_BMASK_IBM(48,55) -#define GRH_HOPLIMIT_MASK EHCA_BMASK_IBM(56,63) +#define GRH_FLAG_MASK EHCA_BMASK_IBM( 7, 7) +#define GRH_IPVERSION_MASK EHCA_BMASK_IBM( 0, 3) +#define GRH_TCLASS_MASK EHCA_BMASK_IBM( 4, 12) +#define GRH_FLOWLABEL_MASK EHCA_BMASK_IBM(13, 31) +#define GRH_PAYLEN_MASK EHCA_BMASK_IBM(32, 47) +#define GRH_NEXTHEADER_MASK EHCA_BMASK_IBM(48, 55) +#define GRH_HOPLIMIT_MASK EHCA_BMASK_IBM(56, 63) /* * Unreliable Datagram Address Vector Format @@ -206,10 +206,10 @@ struct ehca_wqe { }; -#define WC_SEND_RECEIVE EHCA_BMASK_IBM(0,0) -#define WC_IMM_DATA EHCA_BMASK_IBM(1,1) -#define WC_GRH_PRESENT EHCA_BMASK_IBM(2,2) -#define WC_SE_BIT EHCA_BMASK_IBM(3,3) +#define WC_SEND_RECEIVE EHCA_BMASK_IBM(0, 0) +#define WC_IMM_DATA EHCA_BMASK_IBM(1, 1) +#define WC_GRH_PRESENT EHCA_BMASK_IBM(2, 2) +#define WC_SE_BIT EHCA_BMASK_IBM(3, 3) #define WC_STATUS_ERROR_BIT 0x80000000 #define WC_STATUS_REMOTE_ERROR_FLAGS 0x0000F800 #define WC_STATUS_PURGE_BIT 0x10 diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index 74671250303f..48e9ceacd6fa 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -602,10 +602,10 @@ struct ehca_qp *internal_create_qp(struct ib_pd *pd, /* UD circumvention */ parms.act_nr_send_sges -= 2; parms.act_nr_recv_sges -= 2; - swqe_size = offsetof(struct ehca_wqe, - u.ud_av.sg_list[parms.act_nr_send_sges]); - rwqe_size = offsetof(struct ehca_wqe, - u.ud_av.sg_list[parms.act_nr_recv_sges]); + swqe_size = offsetof(struct ehca_wqe, u.ud_av.sg_list[ + parms.act_nr_send_sges]); + rwqe_size = offsetof(struct ehca_wqe, u.ud_av.sg_list[ + parms.act_nr_recv_sges]); } if (IB_QPT_GSI == qp_type || IB_QPT_SMI == qp_type) { @@ -690,8 +690,8 @@ struct ehca_qp *internal_create_qp(struct ib_pd *pd, if (my_qp->send_cq) { ret = ehca_cq_assign_qp(my_qp->send_cq, my_qp); if (ret) { - ehca_err(pd->device, "Couldn't assign qp to send_cq ret=%x", - ret); + ehca_err(pd->device, + "Couldn't assign qp to send_cq ret=%x", ret); goto create_qp_exit4; } } @@ -749,7 +749,7 @@ struct ib_qp *ehca_create_qp(struct ib_pd *pd, struct ehca_qp *ret; ret = internal_create_qp(pd, qp_init_attr, NULL, udata, 0); - return IS_ERR(ret) ? (struct ib_qp *) ret : &ret->ib_qp; + return IS_ERR(ret) ? (struct ib_qp *)ret : &ret->ib_qp; } int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, @@ -780,7 +780,7 @@ struct ib_srq *ehca_create_srq(struct ib_pd *pd, my_qp = internal_create_qp(pd, &qp_init_attr, srq_init_attr, udata, 1); if (IS_ERR(my_qp)) - return (struct ib_srq *) my_qp; + return (struct ib_srq *)my_qp; /* copy back return values */ srq_init_attr->attr.max_wr = qp_init_attr.cap.max_recv_wr; @@ -875,7 +875,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, my_qp, qp_num, h_ret); return ehca2ib_return_code(h_ret); } - bad_send_wqe_p = (void*)((u64)bad_send_wqe_p & (~(1L<<63))); + bad_send_wqe_p = (void *)((u64)bad_send_wqe_p & (~(1L << 63))); ehca_dbg(&shca->ib_device, "qp_num=%x bad_send_wqe_p=%p", qp_num, bad_send_wqe_p); /* convert wqe pointer to vadr */ @@ -890,7 +890,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, } /* loop sets wqe's purge bit */ - wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs); + wqe = (struct ehca_wqe *)ipz_qeit_calc(squeue, q_ofs); *bad_wqe_cnt = 0; while (wqe->optype != 0xff && wqe->wqef != 0xff) { if (ehca_debug_level) @@ -898,7 +898,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, wqe->nr_of_data_seg = 0; /* suppress data access */ wqe->wqef = WQEF_PURGE; /* WQE to be purged */ q_ofs = ipz_queue_advance_offset(squeue, q_ofs); - wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs); + wqe = (struct ehca_wqe *)ipz_qeit_calc(squeue, q_ofs); *bad_wqe_cnt = (*bad_wqe_cnt)+1; } /* @@ -1003,7 +1003,7 @@ static int internal_modify_qp(struct ib_qp *ibqp, goto modify_qp_exit1; } - ehca_dbg(ibqp->device,"ehca_qp=%p qp_num=%x current qp_state=%x " + ehca_dbg(ibqp->device, "ehca_qp=%p qp_num=%x current qp_state=%x " "new qp_state=%x attribute_mask=%x", my_qp, ibqp->qp_num, qp_cur_state, attr->qp_state, attr_mask); @@ -1019,7 +1019,8 @@ static int internal_modify_qp(struct ib_qp *ibqp, goto modify_qp_exit1; } - if ((mqpcb->qp_state = ib2ehca_qp_state(qp_new_state))) + mqpcb->qp_state = ib2ehca_qp_state(qp_new_state); + if (mqpcb->qp_state) update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_STATE, 1); else { ret = -EINVAL; @@ -1077,7 +1078,7 @@ static int internal_modify_qp(struct ib_qp *ibqp, spin_lock_irqsave(&my_qp->spinlock_s, flags); squeue_locked = 1; /* mark next free wqe */ - wqe = (struct ehca_wqe*) + wqe = (struct ehca_wqe *) ipz_qeit_get(&my_qp->ipz_squeue); wqe->optype = wqe->wqef = 0xff; ehca_dbg(ibqp->device, "qp_num=%x next_free_wqe=%p", @@ -1312,7 +1313,7 @@ static int internal_modify_qp(struct ib_qp *ibqp, if (h_ret != H_SUCCESS) { ret = ehca2ib_return_code(h_ret); ehca_err(ibqp->device, "hipz_h_modify_qp() failed rc=%lx " - "ehca_qp=%p qp_num=%x",h_ret, my_qp, ibqp->qp_num); + "ehca_qp=%p qp_num=%x", h_ret, my_qp, ibqp->qp_num); goto modify_qp_exit2; } @@ -1411,7 +1412,7 @@ int ehca_query_qp(struct ib_qp *qp, } if (qp_attr_mask & QP_ATTR_QUERY_NOT_SUPPORTED) { - ehca_err(qp->device,"Invalid attribute mask " + ehca_err(qp->device, "Invalid attribute mask " "ehca_qp=%p qp_num=%x qp_attr_mask=%x ", my_qp, qp->qp_num, qp_attr_mask); return -EINVAL; @@ -1419,7 +1420,7 @@ int ehca_query_qp(struct ib_qp *qp, qpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL); if (!qpcb) { - ehca_err(qp->device,"Out of memory for qpcb " + ehca_err(qp->device, "Out of memory for qpcb " "ehca_qp=%p qp_num=%x", my_qp, qp->qp_num); return -ENOMEM; } @@ -1431,7 +1432,7 @@ int ehca_query_qp(struct ib_qp *qp, if (h_ret != H_SUCCESS) { ret = ehca2ib_return_code(h_ret); - ehca_err(qp->device,"hipz_h_query_qp() failed " + ehca_err(qp->device, "hipz_h_query_qp() failed " "ehca_qp=%p qp_num=%x h_ret=%lx", my_qp, qp->qp_num, h_ret); goto query_qp_exit1; @@ -1442,7 +1443,7 @@ int ehca_query_qp(struct ib_qp *qp, if (qp_attr->cur_qp_state == -EINVAL) { ret = -EINVAL; - ehca_err(qp->device,"Got invalid ehca_qp_state=%x " + ehca_err(qp->device, "Got invalid ehca_qp_state=%x " "ehca_qp=%p qp_num=%x", qpcb->qp_state, my_qp, qp->qp_num); goto query_qp_exit1; diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c index 61da65e6e5e0..94eed70fedf5 100644 --- a/drivers/infiniband/hw/ehca/ehca_reqs.c +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -79,7 +79,8 @@ static inline int ehca_write_rwqe(struct ipz_queue *ipz_rqueue, } if (ehca_debug_level) { - ehca_gen_dbg("RECEIVE WQE written into ipz_rqueue=%p", ipz_rqueue); + ehca_gen_dbg("RECEIVE WQE written into ipz_rqueue=%p", + ipz_rqueue); ehca_dmp( wqe_p, 16*(6 + wqe_p->nr_of_data_seg), "recv wqe"); } @@ -99,7 +100,7 @@ static void trace_send_wr_ud(const struct ib_send_wr *send_wr) struct ib_mad_hdr *mad_hdr = send_wr->wr.ud.mad_hdr; struct ib_sge *sge = send_wr->sg_list; ehca_gen_dbg("send_wr#%x wr_id=%lx num_sge=%x " - "send_flags=%x opcode=%x",idx, send_wr->wr_id, + "send_flags=%x opcode=%x", idx, send_wr->wr_id, send_wr->num_sge, send_wr->send_flags, send_wr->opcode); if (mad_hdr) { @@ -116,7 +117,7 @@ static void trace_send_wr_ud(const struct ib_send_wr *send_wr) mad_hdr->attr_mod); } for (j = 0; j < send_wr->num_sge; j++) { - u8 *data = (u8 *) abs_to_virt(sge->addr); + u8 *data = (u8 *)abs_to_virt(sge->addr); ehca_gen_dbg("send_wr#%x sge#%x addr=%p length=%x " "lkey=%x", idx, j, data, sge->length, sge->lkey); @@ -534,9 +535,11 @@ poll_cq_one_read_cqe: cqe_count++; if (unlikely(cqe->status & WC_STATUS_PURGE_BIT)) { - struct ehca_qp *qp=ehca_cq_get_qp(my_cq, cqe->local_qp_number); + struct ehca_qp *qp; int purgeflag; unsigned long flags; + + qp = ehca_cq_get_qp(my_cq, cqe->local_qp_number); if (!qp) { ehca_err(cq->device, "cq_num=%x qp_num=%x " "could not find qp -> ignore cqe", @@ -551,8 +554,8 @@ poll_cq_one_read_cqe: spin_unlock_irqrestore(&qp->spinlock_s, flags); if (purgeflag) { - ehca_dbg(cq->device, "Got CQE with purged bit qp_num=%x " - "src_qp=%x", + ehca_dbg(cq->device, + "Got CQE with purged bit qp_num=%x src_qp=%x", cqe->local_qp_number, cqe->remote_qp_number); if (ehca_debug_level) ehca_dmp(cqe, 64, "qp_num=%x src_qp=%x", diff --git a/drivers/infiniband/hw/ehca/ehca_tools.h b/drivers/infiniband/hw/ehca/ehca_tools.h index 03b185f873da..678b81391861 100644 --- a/drivers/infiniband/hw/ehca/ehca_tools.h +++ b/drivers/infiniband/hw/ehca/ehca_tools.h @@ -93,14 +93,14 @@ extern int ehca_debug_level; #define ehca_gen_dbg(format, arg...) \ do { \ if (unlikely(ehca_debug_level)) \ - printk(KERN_DEBUG "PU%04x EHCA_DBG:%s " format "\n",\ + printk(KERN_DEBUG "PU%04x EHCA_DBG:%s " format "\n", \ get_paca()->paca_index, __FUNCTION__, ## arg); \ } while (0) #define ehca_gen_warn(format, arg...) \ do { \ if (unlikely(ehca_debug_level)) \ - printk(KERN_INFO "PU%04x EHCA_WARN:%s " format "\n",\ + printk(KERN_INFO "PU%04x EHCA_WARN:%s " format "\n", \ get_paca()->paca_index, __FUNCTION__, ## arg); \ } while (0) @@ -114,12 +114,12 @@ extern int ehca_debug_level; * <format string> adr=X ofs=Y <8 bytes hex> <8 bytes hex> */ #define ehca_dmp(adr, len, format, args...) \ - do { \ - unsigned int x; \ + do { \ + unsigned int x; \ unsigned int l = (unsigned int)(len); \ - unsigned char *deb = (unsigned char*)(adr); \ + unsigned char *deb = (unsigned char *)(adr); \ for (x = 0; x < l; x += 16) { \ - printk("EHCA_DMP:%s " format \ + printk(KERN_INFO "EHCA_DMP:%s " format \ " adr=%p ofs=%04x %016lx %016lx\n", \ __FUNCTION__, ##args, deb, x, \ *((u64 *)&deb[0]), *((u64 *)&deb[8])); \ @@ -128,16 +128,16 @@ extern int ehca_debug_level; } while (0) /* define a bitmask, little endian version */ -#define EHCA_BMASK(pos,length) (((pos)<<16)+(length)) +#define EHCA_BMASK(pos, length) (((pos) << 16) + (length)) /* define a bitmask, the ibm way... */ -#define EHCA_BMASK_IBM(from,to) (((63-to)<<16)+((to)-(from)+1)) +#define EHCA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1)) /* internal function, don't use */ -#define EHCA_BMASK_SHIFTPOS(mask) (((mask)>>16)&0xffff) +#define EHCA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff) /* internal function, don't use */ -#define EHCA_BMASK_MASK(mask) (0xffffffffffffffffULL >> ((64-(mask))&0xffff)) +#define EHCA_BMASK_MASK(mask) (~0ULL >> ((64 - (mask)) & 0xffff)) /** * EHCA_BMASK_SET - return value shifted and masked by mask @@ -145,14 +145,14 @@ extern int ehca_debug_level; * variable&=~EHCA_BMASK_SET(MY_MASK,-1) clears the bits from the mask * in variable */ -#define EHCA_BMASK_SET(mask,value) \ - ((EHCA_BMASK_MASK(mask) & ((u64)(value)))<<EHCA_BMASK_SHIFTPOS(mask)) +#define EHCA_BMASK_SET(mask, value) \ + ((EHCA_BMASK_MASK(mask) & ((u64)(value))) << EHCA_BMASK_SHIFTPOS(mask)) /** * EHCA_BMASK_GET - extract a parameter from value by mask */ -#define EHCA_BMASK_GET(mask,value) \ - (EHCA_BMASK_MASK(mask)& (((u64)(value))>>EHCA_BMASK_SHIFTPOS(mask))) +#define EHCA_BMASK_GET(mask, value) \ + (EHCA_BMASK_MASK(mask) & (((u64)(value)) >> EHCA_BMASK_SHIFTPOS(mask))) /* Converts ehca to ib return code */ @@ -161,8 +161,11 @@ static inline int ehca2ib_return_code(u64 ehca_rc) switch (ehca_rc) { case H_SUCCESS: return 0; + case H_RESOURCE: /* Resource in use */ case H_BUSY: return -EBUSY; + case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ + case H_CONSTRAINED: /* resource constraint */ case H_NO_MEM: return -ENOMEM; default: diff --git a/drivers/infiniband/hw/ehca/ehca_uverbs.c b/drivers/infiniband/hw/ehca/ehca_uverbs.c index 3031b3bb56f9..05c415744e3b 100644 --- a/drivers/infiniband/hw/ehca/ehca_uverbs.c +++ b/drivers/infiniband/hw/ehca/ehca_uverbs.c @@ -70,7 +70,7 @@ int ehca_dealloc_ucontext(struct ib_ucontext *context) static void ehca_mm_open(struct vm_area_struct *vma) { - u32 *count = (u32*)vma->vm_private_data; + u32 *count = (u32 *)vma->vm_private_data; if (!count) { ehca_gen_err("Invalid vma struct vm_start=%lx vm_end=%lx", vma->vm_start, vma->vm_end); @@ -86,7 +86,7 @@ static void ehca_mm_open(struct vm_area_struct *vma) static void ehca_mm_close(struct vm_area_struct *vma) { - u32 *count = (u32*)vma->vm_private_data; + u32 *count = (u32 *)vma->vm_private_data; if (!count) { ehca_gen_err("Invalid vma struct vm_start=%lx vm_end=%lx", vma->vm_start, vma->vm_end); @@ -215,7 +215,8 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp, case 2: /* qp rqueue_addr */ ehca_dbg(qp->ib_qp.device, "qp_num=%x rqueue", qp->ib_qp.qp_num); - ret = ehca_mmap_queue(vma, &qp->ipz_rqueue, &qp->mm_count_rqueue); + ret = ehca_mmap_queue(vma, &qp->ipz_rqueue, + &qp->mm_count_rqueue); if (unlikely(ret)) { ehca_err(qp->ib_qp.device, "ehca_mmap_queue(rq) failed rc=%x qp_num=%x", @@ -227,7 +228,8 @@ static int ehca_mmap_qp(struct vm_area_struct *vma, struct ehca_qp *qp, case 3: /* qp squeue_addr */ ehca_dbg(qp->ib_qp.device, "qp_num=%x squeue", qp->ib_qp.qp_num); - ret = ehca_mmap_queue(vma, &qp->ipz_squeue, &qp->mm_count_squeue); + ret = ehca_mmap_queue(vma, &qp->ipz_squeue, + &qp->mm_count_squeue); if (unlikely(ret)) { ehca_err(qp->ib_qp.device, "ehca_mmap_queue(sq) failed rc=%x qp_num=%x", diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c index 4776a8b0feec..3394e05f4b4f 100644 --- a/drivers/infiniband/hw/ehca/hcp_if.c +++ b/drivers/infiniband/hw/ehca/hcp_if.c @@ -501,8 +501,8 @@ u64 hipz_h_register_rpage_qp(const struct ipz_adapter_handle adapter_handle, return H_PARAMETER; } - return hipz_h_register_rpage(adapter_handle,pagesize,queue_type, - qp_handle.handle,logical_address_of_page, + return hipz_h_register_rpage(adapter_handle, pagesize, queue_type, + qp_handle.handle, logical_address_of_page, count); } @@ -522,9 +522,9 @@ u64 hipz_h_disable_and_get_wqe(const struct ipz_adapter_handle adapter_handle, qp_handle.handle, /* r6 */ 0, 0, 0, 0, 0, 0); if (log_addr_next_sq_wqe2processed) - *log_addr_next_sq_wqe2processed = (void*)outs[0]; + *log_addr_next_sq_wqe2processed = (void *)outs[0]; if (log_addr_next_rq_wqe2processed) - *log_addr_next_rq_wqe2processed = (void*)outs[1]; + *log_addr_next_rq_wqe2processed = (void *)outs[1]; return ret; } diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.c b/drivers/infiniband/hw/ehca/hcp_phyp.c index 0b1a4772c78a..214821095cb1 100644 --- a/drivers/infiniband/hw/ehca/hcp_phyp.c +++ b/drivers/infiniband/hw/ehca/hcp_phyp.c @@ -50,7 +50,7 @@ int hcall_map_page(u64 physaddr, u64 *mapaddr) int hcall_unmap_page(u64 mapaddr) { - iounmap((volatile void __iomem*)mapaddr); + iounmap((volatile void __iomem *) mapaddr); return 0; } diff --git a/drivers/infiniband/hw/ehca/hipz_fns_core.h b/drivers/infiniband/hw/ehca/hipz_fns_core.h index 20898a153446..868735fd3187 100644 --- a/drivers/infiniband/hw/ehca/hipz_fns_core.h +++ b/drivers/infiniband/hw/ehca/hipz_fns_core.h @@ -53,10 +53,10 @@ #define hipz_galpa_load_cq(gal, offset) \ hipz_galpa_load(gal, CQTEMM_OFFSET(offset)) -#define hipz_galpa_store_qp(gal,offset, value) \ +#define hipz_galpa_store_qp(gal, offset, value) \ hipz_galpa_store(gal, QPTEMM_OFFSET(offset), value) #define hipz_galpa_load_qp(gal, offset) \ - hipz_galpa_load(gal,QPTEMM_OFFSET(offset)) + hipz_galpa_load(gal, QPTEMM_OFFSET(offset)) static inline void hipz_update_sqa(struct ehca_qp *qp, u16 nr_wqes) { diff --git a/drivers/infiniband/hw/ehca/hipz_hw.h b/drivers/infiniband/hw/ehca/hipz_hw.h index dad6dea5636b..d9739e554515 100644 --- a/drivers/infiniband/hw/ehca/hipz_hw.h +++ b/drivers/infiniband/hw/ehca/hipz_hw.h @@ -161,11 +161,11 @@ struct hipz_qptemm { /* 0x1000 */ }; -#define QPX_SQADDER EHCA_BMASK_IBM(48,63) -#define QPX_RQADDER EHCA_BMASK_IBM(48,63) -#define QPX_AAELOG_RESET_SRQ_LIMIT EHCA_BMASK_IBM(3,3) +#define QPX_SQADDER EHCA_BMASK_IBM(48, 63) +#define QPX_RQADDER EHCA_BMASK_IBM(48, 63) +#define QPX_AAELOG_RESET_SRQ_LIMIT EHCA_BMASK_IBM(3, 3) -#define QPTEMM_OFFSET(x) offsetof(struct hipz_qptemm,x) +#define QPTEMM_OFFSET(x) offsetof(struct hipz_qptemm, x) /* MRMWPT Entry Memory Map */ struct hipz_mrmwmm { @@ -187,7 +187,7 @@ struct hipz_mrmwmm { }; -#define MRMWMM_OFFSET(x) offsetof(struct hipz_mrmwmm,x) +#define MRMWMM_OFFSET(x) offsetof(struct hipz_mrmwmm, x) struct hipz_qpedmm { /* 0x00 */ @@ -238,7 +238,7 @@ struct hipz_qpedmm { u64 qpedx_rrva3; }; -#define QPEDMM_OFFSET(x) offsetof(struct hipz_qpedmm,x) +#define QPEDMM_OFFSET(x) offsetof(struct hipz_qpedmm, x) /* CQ Table Entry Memory Map */ struct hipz_cqtemm { @@ -263,12 +263,12 @@ struct hipz_cqtemm { /* 0x1000 */ }; -#define CQX_FEC_CQE_CNT EHCA_BMASK_IBM(32,63) -#define CQX_FECADDER EHCA_BMASK_IBM(32,63) -#define CQX_N0_GENERATE_SOLICITED_COMP_EVENT EHCA_BMASK_IBM(0,0) -#define CQX_N1_GENERATE_COMP_EVENT EHCA_BMASK_IBM(0,0) +#define CQX_FEC_CQE_CNT EHCA_BMASK_IBM(32, 63) +#define CQX_FECADDER EHCA_BMASK_IBM(32, 63) +#define CQX_N0_GENERATE_SOLICITED_COMP_EVENT EHCA_BMASK_IBM(0, 0) +#define CQX_N1_GENERATE_COMP_EVENT EHCA_BMASK_IBM(0, 0) -#define CQTEMM_OFFSET(x) offsetof(struct hipz_cqtemm,x) +#define CQTEMM_OFFSET(x) offsetof(struct hipz_cqtemm, x) /* EQ Table Entry Memory Map */ struct hipz_eqtemm { @@ -293,7 +293,7 @@ struct hipz_eqtemm { }; -#define EQTEMM_OFFSET(x) offsetof(struct hipz_eqtemm,x) +#define EQTEMM_OFFSET(x) offsetof(struct hipz_eqtemm, x) /* access control defines for MR/MW */ #define HIPZ_ACCESSCTRL_L_WRITE 0x00800000 diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/infiniband/hw/ehca/ipz_pt_fn.c index bf7a40088f61..9606f13ed092 100644 --- a/drivers/infiniband/hw/ehca/ipz_pt_fn.c +++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.c @@ -114,7 +114,7 @@ int ipz_queue_ctor(struct ipz_queue *queue, */ f = 0; while (f < nr_of_pages) { - u8 *kpage = (u8*)get_zeroed_page(GFP_KERNEL); + u8 *kpage = (u8 *)get_zeroed_page(GFP_KERNEL); int k; if (!kpage) goto ipz_queue_ctor_exit0; /*NOMEM*/ diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.h b/drivers/infiniband/hw/ehca/ipz_pt_fn.h index 007f0882fd40..39a4f64aff41 100644 --- a/drivers/infiniband/hw/ehca/ipz_pt_fn.h +++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.h @@ -240,7 +240,7 @@ void *ipz_qeit_eq_get_inc(struct ipz_queue *queue); static inline void *ipz_eqit_eq_get_inc_valid(struct ipz_queue *queue) { void *ret = ipz_qeit_get(queue); - u32 qe = *(u8 *) ret; + u32 qe = *(u8 *)ret; if ((qe >> 7) != (queue->toggle_state & 1)) return NULL; ipz_qeit_eq_get_inc(queue); /* this is a good one */ @@ -250,7 +250,7 @@ static inline void *ipz_eqit_eq_get_inc_valid(struct ipz_queue *queue) static inline void *ipz_eqit_eq_peek_valid(struct ipz_queue *queue) { void *ret = ipz_qeit_get(queue); - u32 qe = *(u8 *) ret; + u32 qe = *(u8 *)ret; if ((qe >> 7) != (queue->toggle_state & 1)) return NULL; return ret; diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 9361f5ab8bd6..09c5fd84b1e3 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1889,7 +1889,7 @@ void ipath_write_kreg_port(const struct ipath_devdata *dd, ipath_kreg regno, /* Below is "non-zero" to force override, but both actual LEDs are off */ #define LED_OVER_BOTH_OFF (8) -void ipath_run_led_override(unsigned long opaque) +static void ipath_run_led_override(unsigned long opaque) { struct ipath_devdata *dd = (struct ipath_devdata *)opaque; int timeoff; diff --git a/drivers/infiniband/hw/ipath/ipath_eeprom.c b/drivers/infiniband/hw/ipath/ipath_eeprom.c index 6b9147964a4f..b4503e9c1e95 100644 --- a/drivers/infiniband/hw/ipath/ipath_eeprom.c +++ b/drivers/infiniband/hw/ipath/ipath_eeprom.c @@ -426,8 +426,8 @@ bail: * @buffer: data to write * @len: number of bytes to write */ -int ipath_eeprom_internal_write(struct ipath_devdata *dd, u8 eeprom_offset, - const void *buffer, int len) +static int ipath_eeprom_internal_write(struct ipath_devdata *dd, u8 eeprom_offset, + const void *buffer, int len) { u8 single_byte; int sub_len; diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index 47aa43428fbf..1fd91c59f246 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -70,7 +70,7 @@ static void ipath_clrpiobuf(struct ipath_devdata *dd, u32 pnum) * If rewrite is true, and bits are set in the sendbufferror registers, * we'll write to the buffer, for error recovery on parity errors. */ -void ipath_disarm_senderrbufs(struct ipath_devdata *dd, int rewrite) +static void ipath_disarm_senderrbufs(struct ipath_devdata *dd, int rewrite) { u32 piobcnt; unsigned long sbuf[4]; diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 3105005fc9d2..ace63ef78e6f 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -776,7 +776,6 @@ void ipath_get_eeprom_info(struct ipath_devdata *); int ipath_update_eeprom_log(struct ipath_devdata *dd); void ipath_inc_eeprom_err(struct ipath_devdata *dd, u32 eidx, u32 incr); u64 ipath_snap_cntr(struct ipath_devdata *, ipath_creg); -void ipath_disarm_senderrbufs(struct ipath_devdata *, int); /* * Set LED override, only the two LSBs have "public" meaning, but @@ -820,7 +819,6 @@ static inline u64 ipath_mdio_req(int cmd, int dev, int reg, int data) #define IPATH_MDIO_CTRL_8355_REG_10 0x1D int ipath_get_user_pages(unsigned long, size_t, struct page **); -int ipath_get_user_pages_nocopy(unsigned long, struct page **); void ipath_release_user_pages(struct page **, size_t); void ipath_release_user_pages_on_close(struct page **, size_t); int ipath_eeprom_read(struct ipath_devdata *, u8, void *, int); diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index 85256747d8a1..c69c25239443 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -507,7 +507,7 @@ static int want_buffer(struct ipath_devdata *dd) * * Called when we run out of PIO buffers. */ -void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev) +static void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev) { unsigned long flags; diff --git a/drivers/infiniband/hw/ipath/ipath_user_pages.c b/drivers/infiniband/hw/ipath/ipath_user_pages.c index 27034d38b3dd..0190edc8044e 100644 --- a/drivers/infiniband/hw/ipath/ipath_user_pages.c +++ b/drivers/infiniband/hw/ipath/ipath_user_pages.c @@ -171,32 +171,6 @@ int ipath_get_user_pages(unsigned long start_page, size_t num_pages, return ret; } -/** - * ipath_get_user_pages_nocopy - lock a single page for I/O and mark shared - * @start_page: the page to lock - * @p: the output page structure - * - * This is similar to ipath_get_user_pages, but it's always one page, and we - * mark the page as locked for I/O, and shared. This is used for the user - * process page that contains the destination address for the rcvhdrq tail - * update, so we need to have the vma. If we don't do this, the page can be - * taken away from us on fork, even if the child never touches it, and then - * the user process never sees the tail register updates. - */ -int ipath_get_user_pages_nocopy(unsigned long page, struct page **p) -{ - struct vm_area_struct *vma; - int ret; - - down_write(¤t->mm->mmap_sem); - - ret = __get_user_pages(page, 1, p, &vma); - - up_write(¤t->mm->mmap_sem); - - return ret; -} - void ipath_release_user_pages(struct page **p, size_t num_pages) { down_write(¤t->mm->mmap_sem); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 65f7181e9cf8..16aa61fd8085 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -488,7 +488,7 @@ bail:; * This is called from ipath_do_rcv_timer() at interrupt level to check for * QPs which need retransmits and to collect performance numbers. */ -void ipath_ib_timer(struct ipath_ibdev *dev) +static void ipath_ib_timer(struct ipath_ibdev *dev) { struct ipath_qp *resend = NULL; struct list_head *last; diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index f3d1f2cee6f8..9bbe81967f14 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -782,8 +782,6 @@ void ipath_update_mmap_info(struct ipath_ibdev *dev, int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); -void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev); - void ipath_insert_rnr_queue(struct ipath_qp *qp); int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only); @@ -807,8 +805,6 @@ void ipath_ib_rcv(struct ipath_ibdev *, void *, void *, u32); int ipath_ib_piobufavail(struct ipath_ibdev *); -void ipath_ib_timer(struct ipath_ibdev *); - unsigned ipath_get_npkeys(struct ipath_devdata *); u32 ipath_get_cr_errpkey(struct ipath_devdata *); diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 40042184ad58..b5a24fbef70d 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1183,6 +1183,43 @@ static int mlx4_wq_overflow(struct mlx4_ib_wq *wq, int nreq, struct ib_cq *ib_cq return cur + nreq >= wq->max_post; } +static __always_inline void set_raddr_seg(struct mlx4_wqe_raddr_seg *rseg, + u64 remote_addr, u32 rkey) +{ + rseg->raddr = cpu_to_be64(remote_addr); + rseg->rkey = cpu_to_be32(rkey); + rseg->reserved = 0; +} + +static void set_atomic_seg(struct mlx4_wqe_atomic_seg *aseg, struct ib_send_wr *wr) +{ + if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); + aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); + } else { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); + aseg->compare = 0; + } + +} + +static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg, + struct ib_send_wr *wr) +{ + memcpy(dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av)); + dseg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn); + dseg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey); + +} + +static void set_data_seg(struct mlx4_wqe_data_seg *dseg, + struct ib_sge *sg) +{ + dseg->byte_count = cpu_to_be32(sg->length); + dseg->lkey = cpu_to_be32(sg->lkey); + dseg->addr = cpu_to_be64(sg->addr); +} + int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { @@ -1238,26 +1275,13 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: - ((struct mlx4_wqe_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.atomic.remote_addr); - ((struct mlx4_wqe_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.atomic.rkey); - ((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.atomic.remote_addr, + wr->wr.atomic.rkey); wqe += sizeof (struct mlx4_wqe_raddr_seg); - if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { - ((struct mlx4_wqe_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.swap); - ((struct mlx4_wqe_atomic_seg *) wqe)->compare = - cpu_to_be64(wr->wr.atomic.compare_add); - } else { - ((struct mlx4_wqe_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.compare_add); - ((struct mlx4_wqe_atomic_seg *) wqe)->compare = 0; - } - + set_atomic_seg(wqe, wr); wqe += sizeof (struct mlx4_wqe_atomic_seg); + size += (sizeof (struct mlx4_wqe_raddr_seg) + sizeof (struct mlx4_wqe_atomic_seg)) / 16; @@ -1266,15 +1290,10 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, case IB_WR_RDMA_READ: case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mlx4_wqe_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mlx4_wqe_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); wqe += sizeof (struct mlx4_wqe_raddr_seg); size += sizeof (struct mlx4_wqe_raddr_seg) / 16; - break; default: @@ -1284,13 +1303,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, break; case IB_QPT_UD: - memcpy(((struct mlx4_wqe_datagram_seg *) wqe)->av, - &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av)); - ((struct mlx4_wqe_datagram_seg *) wqe)->dqpn = - cpu_to_be32(wr->wr.ud.remote_qpn); - ((struct mlx4_wqe_datagram_seg *) wqe)->qkey = - cpu_to_be32(wr->wr.ud.remote_qkey); - + set_datagram_seg(wqe, wr); wqe += sizeof (struct mlx4_wqe_datagram_seg); size += sizeof (struct mlx4_wqe_datagram_seg) / 16; break; @@ -1313,12 +1326,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mlx4_wqe_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mlx4_wqe_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mlx4_wqe_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mlx4_wqe_data_seg); size += sizeof (struct mlx4_wqe_data_seg) / 16; @@ -1498,7 +1506,7 @@ static int to_ib_qp_access_flags(int mlx4_flags) static void to_ib_ah_attr(struct mlx4_dev *dev, struct ib_ah_attr *ib_ah_attr, struct mlx4_qp_path *path) { - memset(ib_ah_attr, 0, sizeof *path); + memset(ib_ah_attr, 0, sizeof *ib_ah_attr); ib_ah_attr->port_num = path->sched_queue & 0x40 ? 2 : 1; if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->caps.num_ports) @@ -1515,7 +1523,7 @@ static void to_ib_ah_attr(struct mlx4_dev *dev, struct ib_ah_attr *ib_ah_attr, ib_ah_attr->grh.traffic_class = (be32_to_cpu(path->tclass_flowlabel) >> 20) & 0xff; ib_ah_attr->grh.flow_label = - be32_to_cpu(path->tclass_flowlabel) & 0xffffff; + be32_to_cpu(path->tclass_flowlabel) & 0xfffff; memcpy(ib_ah_attr->grh.dgid.raw, path->rgid, sizeof ib_ah_attr->grh.dgid.raw); } @@ -1560,7 +1568,10 @@ int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr } qp_attr->pkey_index = context.pri_path.pkey_index & 0x7f; - qp_attr->port_num = context.pri_path.sched_queue & 0x40 ? 2 : 1; + if (qp_attr->qp_state == IB_QPS_INIT) + qp_attr->port_num = qp->port; + else + qp_attr->port_num = context.pri_path.sched_queue & 0x40 ? 2 : 1; /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ qp_attr->sq_draining = mlx4_state == MLX4_QP_STATE_SQ_DRAINING; @@ -1578,17 +1589,25 @@ int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr done: qp_attr->cur_qp_state = qp_attr->qp_state; + qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; + qp_attr->cap.max_recv_sge = qp->rq.max_gs; + if (!ibqp->uobject) { - qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; - qp_attr->cap.max_recv_wr = qp->rq.wqe_cnt; - qp_attr->cap.max_send_sge = qp->sq.max_gs; - qp_attr->cap.max_recv_sge = qp->rq.max_gs; - qp_attr->cap.max_inline_data = (1 << qp->sq.wqe_shift) - - send_wqe_overhead(qp->ibqp.qp_type) - - sizeof (struct mlx4_wqe_inline_seg); - qp_init_attr->cap = qp_attr->cap; + qp_attr->cap.max_send_wr = qp->sq.wqe_cnt; + qp_attr->cap.max_send_sge = qp->sq.max_gs; + } else { + qp_attr->cap.max_send_wr = 0; + qp_attr->cap.max_send_sge = 0; } + /* + * We don't support inline sends for kernel QPs (yet), and we + * don't know what userspace's value should be. + */ + qp_attr->cap.max_inline_data = 0; + + qp_init_attr->cap = qp_attr->cap; + return 0; } diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index aa563e61de65..76fed7545c53 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -67,7 +67,7 @@ MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); static int msi = 0; module_param(msi, int, 0444); -MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero"); +MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero (deprecated, use MSI-X instead)"); #else /* CONFIG_PCI_MSI */ @@ -1117,9 +1117,21 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) if (msi_x && !mthca_enable_msi_x(mdev)) mdev->mthca_flags |= MTHCA_FLAG_MSI_X; - if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && - !pci_enable_msi(pdev)) - mdev->mthca_flags |= MTHCA_FLAG_MSI; + else if (msi) { + static int warned; + + if (!warned) { + printk(KERN_WARNING PFX "WARNING: MSI support will be " + "removed from the ib_mthca driver in January 2008.\n"); + printk(KERN_WARNING " If you are using MSI and cannot " + "switch to MSI-X, please tell " + "<general@lists.openfabrics.org>.\n"); + ++warned; + } + + if (!pci_enable_msi(pdev)) + mdev->mthca_flags |= MTHCA_FLAG_MSI; + } if (mthca_cmd_init(mdev)) { mthca_err(mdev, "Failed to init command interface, aborting.\n"); @@ -1135,7 +1147,7 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type) goto err_cmd; if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) { - mthca_warn(mdev, "HCA FW version %d.%d.%3d is old (%d.%d.%3d is current).\n", + mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n", (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, (int) (mdev->fw_ver & 0xffff), (int) (mthca_hca_table[hca_type].latest_fw >> 32), diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index eef415b12b2e..df01b2026a64 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -1578,6 +1578,45 @@ static inline int mthca_wq_overflow(struct mthca_wq *wq, int nreq, return cur + nreq >= wq->max; } +static __always_inline void set_raddr_seg(struct mthca_raddr_seg *rseg, + u64 remote_addr, u32 rkey) +{ + rseg->raddr = cpu_to_be64(remote_addr); + rseg->rkey = cpu_to_be32(rkey); + rseg->reserved = 0; +} + +static __always_inline void set_atomic_seg(struct mthca_atomic_seg *aseg, + struct ib_send_wr *wr) +{ + if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); + aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); + } else { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); + aseg->compare = 0; + } + +} + +static void set_tavor_ud_seg(struct mthca_tavor_ud_seg *useg, + struct ib_send_wr *wr) +{ + useg->lkey = cpu_to_be32(to_mah(wr->wr.ud.ah)->key); + useg->av_addr = cpu_to_be64(to_mah(wr->wr.ud.ah)->avdma); + useg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn); + useg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey); + +} + +static void set_arbel_ud_seg(struct mthca_arbel_ud_seg *useg, + struct ib_send_wr *wr) +{ + memcpy(useg->av, to_mah(wr->wr.ud.ah)->av, MTHCA_AV_SIZE); + useg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn); + useg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey); +} + int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { @@ -1590,8 +1629,15 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int nreq; int i; int size; - int size0 = 0; - u32 f0; + /* + * f0 and size0 are only used if nreq != 0, and they will + * always be initialized the first time through the main loop + * before nreq is incremented. So nreq cannot become non-zero + * without initializing f0 and size0, and they are in fact + * never used uninitialized. + */ + int uninitialized_var(size0); + u32 uninitialized_var(f0); int ind; u8 op0 = 0; @@ -1636,25 +1682,11 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.atomic.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.atomic.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.atomic.remote_addr, + wr->wr.atomic.rkey); wqe += sizeof (struct mthca_raddr_seg); - if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.swap); - ((struct mthca_atomic_seg *) wqe)->compare = - cpu_to_be64(wr->wr.atomic.compare_add); - } else { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.compare_add); - ((struct mthca_atomic_seg *) wqe)->compare = 0; - } - + set_atomic_seg(wqe, wr); wqe += sizeof (struct mthca_atomic_seg); size += (sizeof (struct mthca_raddr_seg) + sizeof (struct mthca_atomic_seg)) / 16; @@ -1663,12 +1695,9 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: case IB_WR_RDMA_READ: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -1683,12 +1712,9 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -1700,16 +1726,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, break; case UD: - ((struct mthca_tavor_ud_seg *) wqe)->lkey = - cpu_to_be32(to_mah(wr->wr.ud.ah)->key); - ((struct mthca_tavor_ud_seg *) wqe)->av_addr = - cpu_to_be64(to_mah(wr->wr.ud.ah)->avdma); - ((struct mthca_tavor_ud_seg *) wqe)->dqpn = - cpu_to_be32(wr->wr.ud.remote_qpn); - ((struct mthca_tavor_ud_seg *) wqe)->qkey = - cpu_to_be32(wr->wr.ud.remote_qkey); - - wqe += sizeof (struct mthca_tavor_ud_seg); + set_tavor_ud_seg(wqe, wr); + wqe += sizeof (struct mthca_tavor_ud_seg); size += sizeof (struct mthca_tavor_ud_seg) / 16; break; @@ -1734,13 +1752,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -1768,11 +1781,11 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, mthca_opcode[wr->opcode]); wmb(); ((struct mthca_next_seg *) prev_wqe)->ee_nds = - cpu_to_be32((size0 ? 0 : MTHCA_NEXT_DBD) | size | + cpu_to_be32((nreq ? 0 : MTHCA_NEXT_DBD) | size | ((wr->send_flags & IB_SEND_FENCE) ? MTHCA_NEXT_FENCE : 0)); - if (!size0) { + if (!nreq) { size0 = size; op0 = mthca_opcode[wr->opcode]; f0 = wr->send_flags & IB_SEND_FENCE ? @@ -1822,7 +1835,14 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, int nreq; int i; int size; - int size0 = 0; + /* + * size0 is only used if nreq != 0, and it will always be + * initialized the first time through the main loop before + * nreq is incremented. So nreq cannot become non-zero + * without initializing size0, and it is in fact never used + * uninitialized. + */ + int uninitialized_var(size0); int ind; void *wqe; void *prev_wqe; @@ -1863,13 +1883,8 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -1881,7 +1896,7 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, ((struct mthca_next_seg *) prev_wqe)->ee_nds = cpu_to_be32(MTHCA_NEXT_DBD | size); - if (!size0) + if (!nreq) size0 = size; ++ind; @@ -1903,7 +1918,6 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, qp->rq.next_ind = ind; qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB; - size0 = 0; } } @@ -1945,8 +1959,15 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int nreq; int i; int size; - int size0 = 0; - u32 f0; + /* + * f0 and size0 are only used if nreq != 0, and they will + * always be initialized the first time through the main loop + * before nreq is incremented. So nreq cannot become non-zero + * without initializing f0 and size0, and they are in fact + * never used uninitialized. + */ + int uninitialized_var(size0); + u32 uninitialized_var(f0); int ind; u8 op0 = 0; @@ -1966,7 +1987,6 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, doorbell[1] = cpu_to_be32((qp->qpn << 8) | size0); qp->sq.head += MTHCA_ARBEL_MAX_WQES_PER_SEND_DB; - size0 = 0; /* * Make sure that descriptors are written before @@ -2017,26 +2037,12 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.atomic.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.atomic.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - + set_raddr_seg(wqe, wr->wr.atomic.remote_addr, + wr->wr.atomic.rkey); wqe += sizeof (struct mthca_raddr_seg); - if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.swap); - ((struct mthca_atomic_seg *) wqe)->compare = - cpu_to_be64(wr->wr.atomic.compare_add); - } else { - ((struct mthca_atomic_seg *) wqe)->swap_add = - cpu_to_be64(wr->wr.atomic.compare_add); - ((struct mthca_atomic_seg *) wqe)->compare = 0; - } - - wqe += sizeof (struct mthca_atomic_seg); + set_atomic_seg(wqe, wr); + wqe += sizeof (struct mthca_atomic_seg); size += (sizeof (struct mthca_raddr_seg) + sizeof (struct mthca_atomic_seg)) / 16; break; @@ -2044,12 +2050,9 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, case IB_WR_RDMA_READ: case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -2064,12 +2067,9 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: - ((struct mthca_raddr_seg *) wqe)->raddr = - cpu_to_be64(wr->wr.rdma.remote_addr); - ((struct mthca_raddr_seg *) wqe)->rkey = - cpu_to_be32(wr->wr.rdma.rkey); - ((struct mthca_raddr_seg *) wqe)->reserved = 0; - wqe += sizeof (struct mthca_raddr_seg); + set_raddr_seg(wqe, wr->wr.rdma.remote_addr, + wr->wr.rdma.rkey); + wqe += sizeof (struct mthca_raddr_seg); size += sizeof (struct mthca_raddr_seg) / 16; break; @@ -2081,14 +2081,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, break; case UD: - memcpy(((struct mthca_arbel_ud_seg *) wqe)->av, - to_mah(wr->wr.ud.ah)->av, MTHCA_AV_SIZE); - ((struct mthca_arbel_ud_seg *) wqe)->dqpn = - cpu_to_be32(wr->wr.ud.remote_qpn); - ((struct mthca_arbel_ud_seg *) wqe)->qkey = - cpu_to_be32(wr->wr.ud.remote_qkey); - - wqe += sizeof (struct mthca_arbel_ud_seg); + set_arbel_ud_seg(wqe, wr); + wqe += sizeof (struct mthca_arbel_ud_seg); size += sizeof (struct mthca_arbel_ud_seg) / 16; break; @@ -2113,13 +2107,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -2151,7 +2140,7 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, ((wr->send_flags & IB_SEND_FENCE) ? MTHCA_NEXT_FENCE : 0)); - if (!size0) { + if (!nreq) { size0 = size; op0 = mthca_opcode[wr->opcode]; f0 = wr->send_flags & IB_SEND_FENCE ? @@ -2241,20 +2230,12 @@ int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < qp->rq.max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < qp->rq.max_gs) + mthca_set_data_seg_inval(wqe); qp->wrid[ind] = wr->wr_id; diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index b8f05a526673..88d219e730ad 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -543,20 +543,12 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < srq->max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < srq->max_gs) + mthca_set_data_seg_inval(wqe); ((struct mthca_next_seg *) prev_wqe)->nda_op = cpu_to_be32((ind << srq->wqe_shift) | 1); @@ -662,20 +654,12 @@ int mthca_arbel_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < srq->max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < srq->max_gs) + mthca_set_data_seg_inval(wqe); srq->wrid[ind] = wr->wr_id; srq->first_free = next_ind; diff --git a/drivers/infiniband/hw/mthca/mthca_wqe.h b/drivers/infiniband/hw/mthca/mthca_wqe.h index e7d2c1e86199..f6a66fe78e48 100644 --- a/drivers/infiniband/hw/mthca/mthca_wqe.h +++ b/drivers/infiniband/hw/mthca/mthca_wqe.h @@ -113,4 +113,19 @@ struct mthca_mlx_seg { __be16 vcrc; }; +static __always_inline void mthca_set_data_seg(struct mthca_data_seg *dseg, + struct ib_sge *sg) +{ + dseg->byte_count = cpu_to_be32(sg->length); + dseg->lkey = cpu_to_be32(sg->lkey); + dseg->addr = cpu_to_be64(sg->addr); +} + +static __always_inline void mthca_set_data_seg_inval(struct mthca_data_seg *dseg) +{ + dseg->byte_count = 0; + dseg->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); + dseg->addr = 0; +} + #endif /* MTHCA_WQE_H */ diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index e2353701e8bb..1ee867b1b341 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -310,8 +310,6 @@ int iser_conn_init(struct iser_conn **ib_conn); void iser_conn_terminate(struct iser_conn *ib_conn); -void iser_conn_release(struct iser_conn *ib_conn); - void iser_rcv_completion(struct iser_desc *desc, unsigned long dto_xfer_len); @@ -329,9 +327,6 @@ void iser_reg_single(struct iser_device *device, struct iser_regd_buf *regd_buf, enum dma_data_direction direction); -int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *ctask, - enum iser_data_dir cmd_dir); - void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *ctask, enum iser_data_dir cmd_dir); diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index fc9f1fd0ae54..36cdf77ae92a 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -103,8 +103,8 @@ void iser_reg_single(struct iser_device *device, /** * iser_start_rdma_unaligned_sg */ -int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask, - enum iser_data_dir cmd_dir) +static int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask, + enum iser_data_dir cmd_dir) { int dma_nents; struct ib_device *dev; diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 2044de1164ac..d42ec0156eec 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -311,6 +311,29 @@ static int iser_conn_state_comp_exch(struct iser_conn *ib_conn, } /** + * Frees all conn objects and deallocs conn descriptor + */ +static void iser_conn_release(struct iser_conn *ib_conn) +{ + struct iser_device *device = ib_conn->device; + + BUG_ON(ib_conn->state != ISER_CONN_DOWN); + + mutex_lock(&ig.connlist_mutex); + list_del(&ib_conn->conn_list); + mutex_unlock(&ig.connlist_mutex); + + iser_free_ib_conn_res(ib_conn); + ib_conn->device = NULL; + /* on EVENT_ADDR_ERROR there's no device yet for this conn */ + if (device != NULL) + iser_device_try_release(device); + if (ib_conn->iser_conn) + ib_conn->iser_conn->ib_conn = NULL; + kfree(ib_conn); +} + +/** * triggers start of the disconnect procedures and wait for them to be done */ void iser_conn_terminate(struct iser_conn *ib_conn) @@ -550,30 +573,6 @@ connect_failure: } /** - * Frees all conn objects and deallocs conn descriptor - */ -void iser_conn_release(struct iser_conn *ib_conn) -{ - struct iser_device *device = ib_conn->device; - - BUG_ON(ib_conn->state != ISER_CONN_DOWN); - - mutex_lock(&ig.connlist_mutex); - list_del(&ib_conn->conn_list); - mutex_unlock(&ig.connlist_mutex); - - iser_free_ib_conn_res(ib_conn); - ib_conn->device = NULL; - /* on EVENT_ADDR_ERROR there's no device yet for this conn */ - if (device != NULL) - iser_device_try_release(device); - if (ib_conn->iser_conn) - ib_conn->iser_conn->ib_conn = NULL; - kfree(ib_conn); -} - - -/** * iser_reg_page_vec - Register physical memory * * returns: 0 on success, errno code on failure diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c index bd686a2a517d..20896d5e5f0e 100644 --- a/drivers/input/gameport/gameport.c +++ b/drivers/input/gameport/gameport.c @@ -445,6 +445,7 @@ static struct gameport *gameport_get_pending_child(struct gameport *parent) static int gameport_thread(void *nothing) { + set_freezable(); do { gameport_handle_event(); wait_event_interruptible(gameport_wait, diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c index 5a7b49c35539..b10ffae7c39b 100644 --- a/drivers/input/serio/ambakmi.c +++ b/drivers/input/serio/ambakmi.c @@ -117,15 +117,13 @@ static int amba_kmi_probe(struct amba_device *dev, void *id) if (ret) return ret; - kmi = kmalloc(sizeof(struct amba_kmi_port), GFP_KERNEL); - io = kmalloc(sizeof(struct serio), GFP_KERNEL); + kmi = kzalloc(sizeof(struct amba_kmi_port), GFP_KERNEL); + io = kzalloc(sizeof(struct serio), GFP_KERNEL); if (!kmi || !io) { ret = -ENOMEM; goto out; } - memset(kmi, 0, sizeof(struct amba_kmi_port)); - memset(io, 0, sizeof(struct serio)); io->id.type = SERIO_8042; io->write = amba_kmi_write; diff --git a/drivers/input/serio/pcips2.c b/drivers/input/serio/pcips2.c index ea5e3c6ddb62..1b404f9e3bff 100644 --- a/drivers/input/serio/pcips2.c +++ b/drivers/input/serio/pcips2.c @@ -140,15 +140,13 @@ static int __devinit pcips2_probe(struct pci_dev *dev, const struct pci_device_i if (ret) goto disable; - ps2if = kmalloc(sizeof(struct pcips2_data), GFP_KERNEL); - serio = kmalloc(sizeof(struct serio), GFP_KERNEL); + ps2if = kzalloc(sizeof(struct pcips2_data), GFP_KERNEL); + serio = kzalloc(sizeof(struct serio), GFP_KERNEL); if (!ps2if || !serio) { ret = -ENOMEM; goto release; } - memset(ps2if, 0, sizeof(struct pcips2_data)); - memset(serio, 0, sizeof(struct serio)); serio->id.type = SERIO_8042; serio->write = pcips2_write; diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c index d31ece8f68e9..2ad88780a170 100644 --- a/drivers/input/serio/sa1111ps2.c +++ b/drivers/input/serio/sa1111ps2.c @@ -234,15 +234,13 @@ static int __devinit ps2_probe(struct sa1111_dev *dev) struct serio *serio; int ret; - ps2if = kmalloc(sizeof(struct ps2if), GFP_KERNEL); - serio = kmalloc(sizeof(struct serio), GFP_KERNEL); + ps2if = kzalloc(sizeof(struct ps2if), GFP_KERNEL); + serio = kzalloc(sizeof(struct serio), GFP_KERNEL); if (!ps2if || !serio) { ret = -ENOMEM; goto free; } - memset(ps2if, 0, sizeof(struct ps2if)); - memset(serio, 0, sizeof(struct serio)); serio->id.type = SERIO_8042; serio->write = ps2_write; diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index a8f3bc1dff22..372ca4931194 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -384,6 +384,7 @@ static struct serio *serio_get_pending_child(struct serio *parent) static int serio_thread(void *nothing) { + set_freezable(); do { serio_handle_event(); wait_event_interruptible(serio_wait, diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index f0cbcdb008ed..36f944019158 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -292,6 +292,7 @@ static int ucb1400_ts_thread(void *_ucb) sched_setscheduler(tsk, SCHED_FIFO, ¶m); + set_freezable(); while (!kthread_should_stop()) { unsigned int x, y, p; long timeout; diff --git a/drivers/isdn/Kconfig b/drivers/isdn/Kconfig index 3e088c42b222..cf906c8cee4d 100644 --- a/drivers/isdn/Kconfig +++ b/drivers/isdn/Kconfig @@ -2,12 +2,10 @@ # ISDN device configuration # -menu "ISDN subsystem" - depends on !S390 - -config ISDN +menuconfig ISDN tristate "ISDN support" depends on NET + depends on !S390 ---help--- ISDN ("Integrated Services Digital Networks", called RNIS in France) is a special type of fully digital telephone service; it's mostly @@ -21,9 +19,9 @@ config ISDN Select this option if you want your kernel to support ISDN. +if ISDN menu "Old ISDN4Linux" - depends on NET && ISDN config ISDN_I4L tristate "Old ISDN4Linux (deprecated)" @@ -50,20 +48,21 @@ endif endmenu comment "CAPI subsystem" - depends on NET && ISDN config ISDN_CAPI tristate "CAPI2.0 support" - depends on ISDN help This provides the CAPI (Common ISDN Application Programming Interface, a standard making it easy for programs to access ISDN hardware, see <http://www.capi.org/>. This is needed for AVM's set of active ISDN controllers like B1, T1, M1. +if ISDN_CAPI + source "drivers/isdn/capi/Kconfig" source "drivers/isdn/hardware/Kconfig" -endmenu +endif # ISDN_CAPI +endif # ISDN diff --git a/drivers/isdn/capi/Kconfig b/drivers/isdn/capi/Kconfig index c92f9d764fce..e1afd60924fb 100644 --- a/drivers/isdn/capi/Kconfig +++ b/drivers/isdn/capi/Kconfig @@ -3,7 +3,6 @@ # config ISDN_DRV_AVMB1_VERBOSE_REASON bool "Verbose reason code reporting" - depends on ISDN_CAPI default y help If you say Y here, the CAPI drivers will give verbose reasons for @@ -12,7 +11,6 @@ config ISDN_DRV_AVMB1_VERBOSE_REASON config CAPI_TRACE bool "CAPI trace support" - depends on ISDN_CAPI default y help If you say Y here, the kernelcapi driver can make verbose traces @@ -23,7 +21,7 @@ config CAPI_TRACE config ISDN_CAPI_MIDDLEWARE bool "CAPI2.0 Middleware support (EXPERIMENTAL)" - depends on ISDN_CAPI && EXPERIMENTAL + depends on EXPERIMENTAL help This option will enhance the capabilities of the /dev/capi20 interface. It will provide a means of moving a data connection, @@ -33,7 +31,6 @@ config ISDN_CAPI_MIDDLEWARE config ISDN_CAPI_CAPI20 tristate "CAPI2.0 /dev/capi support" - depends on ISDN_CAPI help This option will provide the CAPI 2.0 interface to userspace applications via /dev/capi20. Applications should use the @@ -56,7 +53,7 @@ config ISDN_CAPI_CAPIFS config ISDN_CAPI_CAPIDRV tristate "CAPI2.0 capidrv interface support" - depends on ISDN_CAPI && ISDN_I4L + depends on ISDN_I4L help This option provides the glue code to hook up CAPI driven cards to the legacy isdn4linux link layer. If you have a card which is diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 81661b8bd3a8..f449daef3eed 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -549,7 +549,7 @@ static int handle_minor_send(struct capiminor *mp) capimsg_setu8 (skb->data, 5, CAPI_REQ); capimsg_setu16(skb->data, 6, mp->msgid++); capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */ - capimsg_setu32(skb->data, 12, (u32) skb->data); /* Data32 */ + capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */ capimsg_setu16(skb->data, 16, len); /* Data length */ capimsg_setu16(skb->data, 18, datahandle); capimsg_setu16(skb->data, 20, 0); /* Flags */ diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c index 3ed34f7a1c4f..9f73bc2727c2 100644 --- a/drivers/isdn/capi/kcapi.c +++ b/drivers/isdn/capi/kcapi.c @@ -258,7 +258,7 @@ static void recv_handler(struct work_struct *work) if ((!ap) || (ap->release_in_progress)) return; - down(&ap->recv_sem); + mutex_lock(&ap->recv_mtx); while ((skb = skb_dequeue(&ap->recv_queue))) { if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_IND) ap->nrecvdatapkt++; @@ -267,7 +267,7 @@ static void recv_handler(struct work_struct *work) ap->recv_message(ap, skb); } - up(&ap->recv_sem); + mutex_unlock(&ap->recv_mtx); } void capi_ctr_handle_message(struct capi_ctr * card, u16 appl, struct sk_buff *skb) @@ -547,7 +547,7 @@ u16 capi20_register(struct capi20_appl *ap) ap->nsentctlpkt = 0; ap->nsentdatapkt = 0; ap->callback = NULL; - init_MUTEX(&ap->recv_sem); + mutex_init(&ap->recv_mtx); skb_queue_head_init(&ap->recv_queue); INIT_WORK(&ap->recv_work, recv_handler); ap->release_in_progress = 0; diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c index 31f4fd8b8b0a..845a797b0030 100644 --- a/drivers/isdn/capi/kcapi_proc.c +++ b/drivers/isdn/capi/kcapi_proc.c @@ -243,36 +243,15 @@ create_seq_entry(char *name, mode_t mode, const struct file_operations *f) // --------------------------------------------------------------------------- - -static __inline__ struct capi_driver *capi_driver_get_idx(loff_t pos) -{ - struct capi_driver *drv = NULL; - struct list_head *l; - loff_t i; - - i = 0; - list_for_each(l, &capi_drivers) { - drv = list_entry(l, struct capi_driver, list); - if (i++ == pos) - return drv; - } - return NULL; -} - static void *capi_driver_start(struct seq_file *seq, loff_t *pos) { - struct capi_driver *drv; read_lock(&capi_drivers_list_lock); - drv = capi_driver_get_idx(*pos); - return drv; + return seq_list_start(&capi_drivers, *pos); } static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos) { - struct capi_driver *drv = (struct capi_driver *)v; - ++*pos; - if (drv->list.next == &capi_drivers) return NULL; - return list_entry(drv->list.next, struct capi_driver, list); + return seq_list_next(v, &capi_drivers, pos); } static void capi_driver_stop(struct seq_file *seq, void *v) @@ -282,7 +261,8 @@ static void capi_driver_stop(struct seq_file *seq, void *v) static int capi_driver_show(struct seq_file *seq, void *v) { - struct capi_driver *drv = (struct capi_driver *)v; + struct capi_driver *drv = list_entry(v, struct capi_driver, list); + seq_printf(seq, "%-32s %s\n", drv->name, drv->revision); return 0; } diff --git a/drivers/isdn/hardware/Kconfig b/drivers/isdn/hardware/Kconfig index 139f19797713..30d028d24955 100644 --- a/drivers/isdn/hardware/Kconfig +++ b/drivers/isdn/hardware/Kconfig @@ -2,7 +2,6 @@ # ISDN hardware drivers # comment "CAPI hardware drivers" - depends on NET && ISDN && ISDN_CAPI source "drivers/isdn/hardware/avm/Kconfig" diff --git a/drivers/isdn/hardware/avm/Kconfig b/drivers/isdn/hardware/avm/Kconfig index 29a32a8830c0..5dbcbe3a54a6 100644 --- a/drivers/isdn/hardware/avm/Kconfig +++ b/drivers/isdn/hardware/avm/Kconfig @@ -2,23 +2,22 @@ # ISDN AVM drivers # -menu "Active AVM cards" - depends on NET && ISDN && ISDN_CAPI!=n - -config CAPI_AVM - bool "Support AVM cards" +menuconfig CAPI_AVM + bool "Active AVM cards" help Enable support for AVM active ISDN cards. +if CAPI_AVM + config ISDN_DRV_AVMB1_B1ISA tristate "AVM B1 ISA support" - depends on CAPI_AVM && ISDN_CAPI && ISA + depends on ISA help Enable support for the ISA version of the AVM B1 card. config ISDN_DRV_AVMB1_B1PCI tristate "AVM B1 PCI support" - depends on CAPI_AVM && ISDN_CAPI && PCI + depends on PCI help Enable support for the PCI version of the AVM B1 card. @@ -30,14 +29,13 @@ config ISDN_DRV_AVMB1_B1PCIV4 config ISDN_DRV_AVMB1_T1ISA tristate "AVM T1/T1-B ISA support" - depends on CAPI_AVM && ISDN_CAPI && ISA + depends on ISA help Enable support for the AVM T1 T1B card. Note: This is a PRI card and handle 30 B-channels. config ISDN_DRV_AVMB1_B1PCMCIA tristate "AVM B1/M1/M2 PCMCIA support" - depends on CAPI_AVM && ISDN_CAPI help Enable support for the PCMCIA version of the AVM B1 card. @@ -50,17 +48,16 @@ config ISDN_DRV_AVMB1_AVM_CS config ISDN_DRV_AVMB1_T1PCI tristate "AVM T1/T1-B PCI support" - depends on CAPI_AVM && ISDN_CAPI && PCI + depends on PCI help Enable support for the AVM T1 T1B card. Note: This is a PRI card and handle 30 B-channels. config ISDN_DRV_AVMB1_C4 tristate "AVM C4/C2 support" - depends on CAPI_AVM && ISDN_CAPI && PCI + depends on PCI help Enable support for the AVM C4/C2 PCI cards. These cards handle 4/2 BRI ISDN lines (8/4 channels). -endmenu - +endif # CAPI_AVM diff --git a/drivers/isdn/hardware/eicon/Kconfig b/drivers/isdn/hardware/eicon/Kconfig index 01d4afd9d843..6082b6a5ced3 100644 --- a/drivers/isdn/hardware/eicon/Kconfig +++ b/drivers/isdn/hardware/eicon/Kconfig @@ -2,52 +2,50 @@ # ISDN DIVAS Eicon driver # -menu "Active Eicon DIVA Server cards" - depends on NET && ISDN && ISDN_CAPI!=n - -config CAPI_EICON - bool "Support Eicon cards" +menuconfig CAPI_EICON + bool "Active Eicon DIVA Server cards" help Enable support for Eicon Networks active ISDN cards. +if CAPI_EICON + config ISDN_DIVAS tristate "Support Eicon DIVA Server cards" - depends on CAPI_EICON && PROC_FS && PCI + depends on PROC_FS && PCI help Say Y here if you have an Eicon Networks DIVA Server PCI ISDN card. In order to use this card, additional firmware is necessary, which has to be downloaded into the card using the divactrl utility. +if ISDN_DIVAS + config ISDN_DIVAS_BRIPCI bool "DIVA Server BRI/PCI support" - depends on ISDN_DIVAS help Enable support for DIVA Server BRI-PCI. config ISDN_DIVAS_PRIPCI bool "DIVA Server PRI/PCI support" - depends on ISDN_DIVAS help Enable support for DIVA Server PRI-PCI. config ISDN_DIVAS_DIVACAPI tristate "DIVA CAPI2.0 interface support" - depends on ISDN_DIVAS && ISDN_CAPI help You need this to provide the CAPI interface for DIVA Server cards. config ISDN_DIVAS_USERIDI tristate "DIVA User-IDI interface support" - depends on ISDN_DIVAS help Enable support for user-mode IDI interface. config ISDN_DIVAS_MAINT tristate "DIVA Maint driver support" - depends on ISDN_DIVAS && m + depends on m help Enable Divas Maintenance driver. -endmenu +endif # ISDN_DIVAS +endif # CAPI_EICON diff --git a/drivers/isdn/hardware/eicon/idifunc.c b/drivers/isdn/hardware/eicon/idifunc.c index 4cbc68cf4dba..db87d5105422 100644 --- a/drivers/isdn/hardware/eicon/idifunc.c +++ b/drivers/isdn/hardware/eicon/idifunc.c @@ -106,6 +106,7 @@ static void um_new_card(DESCRIPTOR * d) } else { DBG_ERR(("could not create user mode idi card %d", adapter_nr)); + diva_os_free(0, card); } } diff --git a/drivers/isdn/hisax/bkm_a4t.c b/drivers/isdn/hisax/bkm_a4t.c index 871310d56a6e..3d1bdc8431ad 100644 --- a/drivers/isdn/hisax/bkm_a4t.c +++ b/drivers/isdn/hisax/bkm_a4t.c @@ -255,54 +255,38 @@ BKM_card_msg(struct IsdnCardState *cs, int mt, void *arg) return (0); } -static struct pci_dev *dev_a4t __devinitdata = NULL; +static int __devinit a4t_pci_probe(struct pci_dev *dev_a4t, + struct IsdnCardState *cs, + u_int *found, + u_int *pci_memaddr) +{ + u16 sub_sys; + u16 sub_vendor; + + sub_vendor = dev_a4t->subsystem_vendor; + sub_sys = dev_a4t->subsystem_device; + if ((sub_sys == PCI_DEVICE_ID_BERKOM_A4T) && (sub_vendor == PCI_VENDOR_ID_BERKOM)) { + if (pci_enable_device(dev_a4t)) + return (0); /* end loop & function */ + *found = 1; + *pci_memaddr = pci_resource_start(dev_a4t, 0); + cs->irq = dev_a4t->irq; + return (1); /* end loop */ + } -int __devinit -setup_bkm_a4t(struct IsdnCard *card) + return (-1); /* continue looping */ +} + +static int __devinit a4t_cs_init(struct IsdnCard *card, + struct IsdnCardState *cs, + u_int pci_memaddr) { - struct IsdnCardState *cs = card->cs; - char tmp[64]; - u_int pci_memaddr = 0, found = 0; I20_REGISTER_FILE *pI20_Regs; -#ifdef CONFIG_PCI -#endif - - strcpy(tmp, bkm_a4t_revision); - printk(KERN_INFO "HiSax: T-Berkom driver Rev. %s\n", HiSax_getrev(tmp)); - if (cs->typ == ISDN_CTYPE_BKM_A4T) { - cs->subtyp = BKM_A4T; - } else - return (0); -#ifdef CONFIG_PCI - while ((dev_a4t = pci_find_device(PCI_VENDOR_ID_ZORAN, - PCI_DEVICE_ID_ZORAN_36120, dev_a4t))) { - u16 sub_sys; - u16 sub_vendor; - - sub_vendor = dev_a4t->subsystem_vendor; - sub_sys = dev_a4t->subsystem_device; - if ((sub_sys == PCI_DEVICE_ID_BERKOM_A4T) && (sub_vendor == PCI_VENDOR_ID_BERKOM)) { - if (pci_enable_device(dev_a4t)) - return(0); - found = 1; - pci_memaddr = pci_resource_start(dev_a4t, 0); - cs->irq = dev_a4t->irq; - break; - } - } - if (!found) { - printk(KERN_WARNING "HiSax: %s: Card not found\n", CardType[card->typ]); - return (0); - } if (!cs->irq) { /* IRQ range check ?? */ printk(KERN_WARNING "HiSax: %s: No IRQ\n", CardType[card->typ]); return (0); } - if (!pci_memaddr) { - printk(KERN_WARNING "HiSax: %s: No Memory base address\n", CardType[card->typ]); - return (0); - } cs->hw.ax.base = (long) ioremap(pci_memaddr, 4096); /* Check suspecious address */ pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base); @@ -317,11 +301,7 @@ setup_bkm_a4t(struct IsdnCard *card) cs->hw.ax.jade_adr = cs->hw.ax.base + PO_OFFSET; cs->hw.ax.isac_ale = GCS_1; cs->hw.ax.jade_ale = GCS_3; -#else - printk(KERN_WARNING "HiSax: %s: NO_PCI_BIOS\n", CardType[card->typ]); - printk(KERN_WARNING "HiSax: %s: unable to configure\n", CardType[card->typ]); - return (0); -#endif /* CONFIG_PCI */ + printk(KERN_INFO "HiSax: %s: Card configured at 0x%lX IRQ %d\n", CardType[card->typ], cs->hw.ax.base, cs->irq); @@ -339,5 +319,43 @@ setup_bkm_a4t(struct IsdnCard *card) ISACVersion(cs, "Telekom A4T:"); /* Jade version */ JadeVersion(cs, "Telekom A4T:"); + return (1); } + +static struct pci_dev *dev_a4t __devinitdata = NULL; + +int __devinit +setup_bkm_a4t(struct IsdnCard *card) +{ + struct IsdnCardState *cs = card->cs; + char tmp[64]; + u_int pci_memaddr = 0, found = 0; + int ret; + + strcpy(tmp, bkm_a4t_revision); + printk(KERN_INFO "HiSax: T-Berkom driver Rev. %s\n", HiSax_getrev(tmp)); + if (cs->typ == ISDN_CTYPE_BKM_A4T) { + cs->subtyp = BKM_A4T; + } else + return (0); + + while ((dev_a4t = pci_find_device(PCI_VENDOR_ID_ZORAN, + PCI_DEVICE_ID_ZORAN_36120, dev_a4t))) { + ret = a4t_pci_probe(dev_a4t, cs, &found, &pci_memaddr); + if (!ret) + return (0); + if (ret > 0) + break; + } + if (!found) { + printk(KERN_WARNING "HiSax: %s: Card not found\n", CardType[card->typ]); + return (0); + } + if (!pci_memaddr) { + printk(KERN_WARNING "HiSax: %s: No Memory base address\n", CardType[card->typ]); + return (0); + } + + return a4t_cs_init(card, cs, pci_memaddr); +} diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c index 8d53a7fd2671..97097ef3491e 100644 --- a/drivers/isdn/hisax/config.c +++ b/drivers/isdn/hisax/config.c @@ -361,11 +361,11 @@ module_param_array(io1, int, NULL, 0); int nrcards; -extern char *l1_revision; -extern char *l2_revision; -extern char *l3_revision; -extern char *lli_revision; -extern char *tei_revision; +extern const char *l1_revision; +extern const char *l2_revision; +extern const char *l3_revision; +extern const char *lli_revision; +extern const char *tei_revision; char *HiSax_getrev(const char *revision) { @@ -847,95 +847,10 @@ static int init_card(struct IsdnCardState *cs) return 3; } -static int checkcard(int cardnr, char *id, int *busy_flag, struct module *lockowner) +static int hisax_cs_setup_card(struct IsdnCard *card) { - int ret = 0; - struct IsdnCard *card = cards + cardnr; - struct IsdnCardState *cs; - - cs = kzalloc(sizeof(struct IsdnCardState), GFP_ATOMIC); - if (!cs) { - printk(KERN_WARNING - "HiSax: No memory for IsdnCardState(card %d)\n", - cardnr + 1); - goto out; - } - card->cs = cs; - spin_lock_init(&cs->statlock); - spin_lock_init(&cs->lock); - cs->chanlimit = 2; /* maximum B-channel number */ - cs->logecho = 0; /* No echo logging */ - cs->cardnr = cardnr; - cs->debug = L1_DEB_WARN; - cs->HW_Flags = 0; - cs->busy_flag = busy_flag; - cs->irq_flags = I4L_IRQ_FLAG; -#if TEI_PER_CARD - if (card->protocol == ISDN_PTYPE_NI1) - test_and_set_bit(FLG_TWO_DCHAN, &cs->HW_Flags); -#else - test_and_set_bit(FLG_TWO_DCHAN, &cs->HW_Flags); -#endif - cs->protocol = card->protocol; - - if (card->typ <= 0 || card->typ > ISDN_CTYPE_COUNT) { - printk(KERN_WARNING - "HiSax: Card Type %d out of range\n", card->typ); - goto outf_cs; - } - if (!(cs->dlog = kmalloc(MAX_DLOG_SPACE, GFP_ATOMIC))) { - printk(KERN_WARNING - "HiSax: No memory for dlog(card %d)\n", cardnr + 1); - goto outf_cs; - } - if (!(cs->status_buf = kmalloc(HISAX_STATUS_BUFSIZE, GFP_ATOMIC))) { - printk(KERN_WARNING - "HiSax: No memory for status_buf(card %d)\n", - cardnr + 1); - goto outf_dlog; - } - cs->stlist = NULL; - cs->status_read = cs->status_buf; - cs->status_write = cs->status_buf; - cs->status_end = cs->status_buf + HISAX_STATUS_BUFSIZE - 1; - cs->typ = card->typ; -#ifdef MODULE - cs->iif.owner = lockowner; -#endif - strcpy(cs->iif.id, id); - cs->iif.channels = 2; - cs->iif.maxbufsize = MAX_DATA_SIZE; - cs->iif.hl_hdrlen = MAX_HEADER_LEN; - cs->iif.features = - ISDN_FEATURE_L2_X75I | - ISDN_FEATURE_L2_HDLC | - ISDN_FEATURE_L2_HDLC_56K | - ISDN_FEATURE_L2_TRANS | - ISDN_FEATURE_L3_TRANS | -#ifdef CONFIG_HISAX_1TR6 - ISDN_FEATURE_P_1TR6 | -#endif -#ifdef CONFIG_HISAX_EURO - ISDN_FEATURE_P_EURO | -#endif -#ifdef CONFIG_HISAX_NI1 - ISDN_FEATURE_P_NI1 | -#endif - 0; + int ret; - cs->iif.command = HiSax_command; - cs->iif.writecmd = NULL; - cs->iif.writebuf_skb = HiSax_writebuf_skb; - cs->iif.readstat = HiSax_readstatus; - register_isdn(&cs->iif); - cs->myid = cs->iif.channels; - printk(KERN_INFO - "HiSax: Card %d Protocol %s Id=%s (%d)\n", cardnr + 1, - (card->protocol == ISDN_PTYPE_1TR6) ? "1TR6" : - (card->protocol == ISDN_PTYPE_EURO) ? "EDSS1" : - (card->protocol == ISDN_PTYPE_LEASED) ? "LEASED" : - (card->protocol == ISDN_PTYPE_NI1) ? "NI1" : - "NONE", cs->iif.id, cs->myid); switch (card->typ) { #if CARD_TELES0 case ISDN_CTYPE_16_0: @@ -1094,13 +1009,115 @@ static int checkcard(int cardnr, char *id, int *busy_flag, struct module *lockow printk(KERN_WARNING "HiSax: Support for %s Card not selected\n", CardType[card->typ]); - ll_unload(cs); + ret = 0; + break; + } + + return ret; +} + +static int hisax_cs_new(int cardnr, char *id, struct IsdnCard *card, + struct IsdnCardState **cs_out, int *busy_flag, + struct module *lockowner) +{ + struct IsdnCardState *cs; + + *cs_out = NULL; + + cs = kzalloc(sizeof(struct IsdnCardState), GFP_ATOMIC); + if (!cs) { + printk(KERN_WARNING + "HiSax: No memory for IsdnCardState(card %d)\n", + cardnr + 1); + goto out; + } + card->cs = cs; + spin_lock_init(&cs->statlock); + spin_lock_init(&cs->lock); + cs->chanlimit = 2; /* maximum B-channel number */ + cs->logecho = 0; /* No echo logging */ + cs->cardnr = cardnr; + cs->debug = L1_DEB_WARN; + cs->HW_Flags = 0; + cs->busy_flag = busy_flag; + cs->irq_flags = I4L_IRQ_FLAG; +#if TEI_PER_CARD + if (card->protocol == ISDN_PTYPE_NI1) + test_and_set_bit(FLG_TWO_DCHAN, &cs->HW_Flags); +#else + test_and_set_bit(FLG_TWO_DCHAN, &cs->HW_Flags); +#endif + cs->protocol = card->protocol; + + if (card->typ <= 0 || card->typ > ISDN_CTYPE_COUNT) { + printk(KERN_WARNING + "HiSax: Card Type %d out of range\n", card->typ); goto outf_cs; } - if (!ret) { - ll_unload(cs); + if (!(cs->dlog = kmalloc(MAX_DLOG_SPACE, GFP_ATOMIC))) { + printk(KERN_WARNING + "HiSax: No memory for dlog(card %d)\n", cardnr + 1); goto outf_cs; } + if (!(cs->status_buf = kmalloc(HISAX_STATUS_BUFSIZE, GFP_ATOMIC))) { + printk(KERN_WARNING + "HiSax: No memory for status_buf(card %d)\n", + cardnr + 1); + goto outf_dlog; + } + cs->stlist = NULL; + cs->status_read = cs->status_buf; + cs->status_write = cs->status_buf; + cs->status_end = cs->status_buf + HISAX_STATUS_BUFSIZE - 1; + cs->typ = card->typ; +#ifdef MODULE + cs->iif.owner = lockowner; +#endif + strcpy(cs->iif.id, id); + cs->iif.channels = 2; + cs->iif.maxbufsize = MAX_DATA_SIZE; + cs->iif.hl_hdrlen = MAX_HEADER_LEN; + cs->iif.features = + ISDN_FEATURE_L2_X75I | + ISDN_FEATURE_L2_HDLC | + ISDN_FEATURE_L2_HDLC_56K | + ISDN_FEATURE_L2_TRANS | + ISDN_FEATURE_L3_TRANS | +#ifdef CONFIG_HISAX_1TR6 + ISDN_FEATURE_P_1TR6 | +#endif +#ifdef CONFIG_HISAX_EURO + ISDN_FEATURE_P_EURO | +#endif +#ifdef CONFIG_HISAX_NI1 + ISDN_FEATURE_P_NI1 | +#endif + 0; + + cs->iif.command = HiSax_command; + cs->iif.writecmd = NULL; + cs->iif.writebuf_skb = HiSax_writebuf_skb; + cs->iif.readstat = HiSax_readstatus; + register_isdn(&cs->iif); + cs->myid = cs->iif.channels; + + *cs_out = cs; + return 1; /* success */ + +outf_dlog: + kfree(cs->dlog); +outf_cs: + kfree(cs); + card->cs = NULL; +out: + return 0; /* error */ +} + +static int hisax_cs_setup(int cardnr, struct IsdnCard *card, + struct IsdnCardState *cs) +{ + int ret; + if (!(cs->rcvbuf = kmalloc(MAX_DFRAME_LEN_L1, GFP_ATOMIC))) { printk(KERN_WARNING "HiSax: No memory for isac rcvbuf\n"); ll_unload(cs); @@ -1129,25 +1146,53 @@ static int checkcard(int cardnr, char *id, int *busy_flag, struct module *lockow } if (ret) { closecard(cardnr); - ret = 0; goto outf_cs; } init_tei(cs, cs->protocol); ret = CallcNewChan(cs); if (ret) { closecard(cardnr); - ret = 0; goto outf_cs; } /* ISAR needs firmware download first */ if (!test_bit(HW_ISAR, &cs->HW_Flags)) ll_run(cs, 0); - ret = 1; + return 1; + +outf_cs: + kfree(cs); + card->cs = NULL; + return 0; +} + +static int checkcard(int cardnr, char *id, int *busy_flag, struct module *lockowner) +{ + int ret; + struct IsdnCard *card = cards + cardnr; + struct IsdnCardState *cs; + + ret = hisax_cs_new(cardnr, id, card, &cs, busy_flag, lockowner); + if (!ret) + return 0; + + printk(KERN_INFO + "HiSax: Card %d Protocol %s Id=%s (%d)\n", cardnr + 1, + (card->protocol == ISDN_PTYPE_1TR6) ? "1TR6" : + (card->protocol == ISDN_PTYPE_EURO) ? "EDSS1" : + (card->protocol == ISDN_PTYPE_LEASED) ? "LEASED" : + (card->protocol == ISDN_PTYPE_NI1) ? "NI1" : + "NONE", cs->iif.id, cs->myid); + + ret = hisax_cs_setup_card(card); + if (!ret) { + ll_unload(cs); + goto outf_cs; + } + + ret = hisax_cs_setup(cardnr, card, cs); goto out; - outf_dlog: - kfree(cs->dlog); outf_cs: kfree(cs); card->cs = NULL; diff --git a/drivers/isdn/hisax/enternow_pci.c b/drivers/isdn/hisax/enternow_pci.c index b45de9d408d1..b73027ff50e8 100644 --- a/drivers/isdn/hisax/enternow_pci.c +++ b/drivers/isdn/hisax/enternow_pci.c @@ -300,98 +300,72 @@ enpci_interrupt(int intno, void *dev_id) return IRQ_HANDLED; } - -static struct pci_dev *dev_netjet __devinitdata = NULL; - -/* called by config.c */ -int __devinit -setup_enternow_pci(struct IsdnCard *card) +static int __devinit en_pci_probe(struct pci_dev *dev_netjet, + struct IsdnCardState *cs) { - int bytecnt; - struct IsdnCardState *cs = card->cs; - char tmp[64]; - -#ifdef CONFIG_PCI -#ifdef __BIG_ENDIAN -#error "not running on big endian machines now" -#endif - strcpy(tmp, enternow_pci_rev); - printk(KERN_INFO "HiSax: Formula-n Europe AG enter:now ISDN PCI driver Rev. %s\n", HiSax_getrev(tmp)); - if (cs->typ != ISDN_CTYPE_ENTERNOW) + if (pci_enable_device(dev_netjet)) return(0); - test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); - - for ( ;; ) - { - if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET, - PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { - if (pci_enable_device(dev_netjet)) - return(0); - cs->irq = dev_netjet->irq; - if (!cs->irq) { - printk(KERN_WARNING "enter:now PCI: No IRQ for PCI card found\n"); - return(0); - } - cs->hw.njet.base = pci_resource_start(dev_netjet, 0); - if (!cs->hw.njet.base) { - printk(KERN_WARNING "enter:now PCI: No IO-Adr for PCI card found\n"); - return(0); - } - /* checks Sub-Vendor ID because system crashes with Traverse-Card */ - if ((dev_netjet->subsystem_vendor != 0x55) || - (dev_netjet->subsystem_device != 0x02)) { - printk(KERN_WARNING "enter:now: You tried to load this driver with an incompatible TigerJet-card\n"); - printk(KERN_WARNING "Use type=20 for Traverse NetJet PCI Card.\n"); - return(0); - } - } else { - printk(KERN_WARNING "enter:now PCI: No PCI card found\n"); - return(0); - } - - cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; - cs->hw.njet.isac = cs->hw.njet.base + 0xC0; // Fenster zum AMD - - /* Reset an */ - cs->hw.njet.ctrl_reg = 0x07; // geändert von 0xff - outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); - /* 20 ms Pause */ - mdelay(20); + cs->irq = dev_netjet->irq; + if (!cs->irq) { + printk(KERN_WARNING "enter:now PCI: No IRQ for PCI card found\n"); + return(0); + } + cs->hw.njet.base = pci_resource_start(dev_netjet, 0); + if (!cs->hw.njet.base) { + printk(KERN_WARNING "enter:now PCI: No IO-Adr for PCI card found\n"); + return(0); + } + /* checks Sub-Vendor ID because system crashes with Traverse-Card */ + if ((dev_netjet->subsystem_vendor != 0x55) || + (dev_netjet->subsystem_device != 0x02)) { + printk(KERN_WARNING "enter:now: You tried to load this driver with an incompatible TigerJet-card\n"); + printk(KERN_WARNING "Use type=20 for Traverse NetJet PCI Card.\n"); + return(0); + } - cs->hw.njet.ctrl_reg = 0x30; /* Reset Off and status read clear */ - outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); - mdelay(10); + return(1); +} - cs->hw.njet.auxd = 0x00; // war 0xc0 - cs->hw.njet.dmactrl = 0; +static void __devinit en_cs_init(struct IsdnCard *card, + struct IsdnCardState *cs) +{ + cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; + cs->hw.njet.isac = cs->hw.njet.base + 0xC0; // Fenster zum AMD - outb(~TJ_AMD_IRQ, cs->hw.njet.base + NETJET_AUXCTRL); - outb(TJ_AMD_IRQ, cs->hw.njet.base + NETJET_IRQMASK1); - outb(cs->hw.njet.auxd, cs->hw.njet.auxa); + /* Reset an */ + cs->hw.njet.ctrl_reg = 0x07; // geändert von 0xff + outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); + /* 20 ms Pause */ + mdelay(20); - break; - } -#else + cs->hw.njet.ctrl_reg = 0x30; /* Reset Off and status read clear */ + outb(cs->hw.njet.ctrl_reg, cs->hw.njet.base + NETJET_CTRL); + mdelay(10); - printk(KERN_WARNING "enter:now PCI: NO_PCI_BIOS\n"); - printk(KERN_WARNING "enter:now PCI: unable to config Formula-n enter:now ISDN PCI ab\n"); - return (0); + cs->hw.njet.auxd = 0x00; // war 0xc0 + cs->hw.njet.dmactrl = 0; -#endif /* CONFIG_PCI */ + outb(~TJ_AMD_IRQ, cs->hw.njet.base + NETJET_AUXCTRL); + outb(TJ_AMD_IRQ, cs->hw.njet.base + NETJET_IRQMASK1); + outb(cs->hw.njet.auxd, cs->hw.njet.auxa); +} - bytecnt = 256; +static int __devinit en_cs_init_rest(struct IsdnCard *card, + struct IsdnCardState *cs) +{ + const int bytecnt = 256; printk(KERN_INFO "enter:now PCI: PCI card configured at 0x%lx IRQ %d\n", cs->hw.njet.base, cs->irq); if (!request_region(cs->hw.njet.base, bytecnt, "Fn_ISDN")) { printk(KERN_WARNING - "HiSax: %s config port %lx-%lx already in use\n", - CardType[card->typ], - cs->hw.njet.base, - cs->hw.njet.base + bytecnt); + "HiSax: enter:now config port %lx-%lx already in use\n", + cs->hw.njet.base, + cs->hw.njet.base + bytecnt); return (0); } + setup_Amd7930(cs); cs->hw.njet.last_is0 = 0; /* macro rByteAMD */ @@ -407,5 +381,44 @@ setup_enternow_pci(struct IsdnCard *card) cs->irq_func = &enpci_interrupt; cs->irq_flags |= IRQF_SHARED; - return (1); + return (1); +} + +static struct pci_dev *dev_netjet __devinitdata = NULL; + +/* called by config.c */ +int __devinit +setup_enternow_pci(struct IsdnCard *card) +{ + int ret; + struct IsdnCardState *cs = card->cs; + char tmp[64]; + +#ifdef __BIG_ENDIAN +#error "not running on big endian machines now" +#endif + + strcpy(tmp, enternow_pci_rev); + printk(KERN_INFO "HiSax: Formula-n Europe AG enter:now ISDN PCI driver Rev. %s\n", HiSax_getrev(tmp)); + if (cs->typ != ISDN_CTYPE_ENTERNOW) + return(0); + test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); + + for ( ;; ) + { + if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET, + PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { + ret = en_pci_probe(dev_netjet, cs); + if (!ret) + return(0); + } else { + printk(KERN_WARNING "enter:now PCI: No PCI card found\n"); + return(0); + } + + en_cs_init(card, cs); + break; + } + + return en_cs_init_rest(card, cs); } diff --git a/drivers/isdn/hisax/hfc_pci.c b/drivers/isdn/hisax/hfc_pci.c index 8a48a3ce0a55..077080aca799 100644 --- a/drivers/isdn/hisax/hfc_pci.c +++ b/drivers/isdn/hisax/hfc_pci.c @@ -6,7 +6,7 @@ * based on existing driver for CCD hfc ISA cards * Copyright by Werner Cornelius <werner@isdn4linux.de> * by Karsten Keil <keil@isdn4linux.de> - * + * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * @@ -67,8 +67,6 @@ static const PCI_ENTRY id_list[] = }; -#ifdef CONFIG_PCI - /******************************************/ /* free hardware resources used by driver */ /******************************************/ @@ -237,7 +235,7 @@ static void hfcpci_clear_fifo_rx(struct IsdnCardState *cs, int fifo) if (fifo_state) cs->hw.hfcpci.fifo_en |= fifo_state; Write_hfc(cs, HFCPCI_FIFO_EN, cs->hw.hfcpci.fifo_en); -} +} /***************************************/ /* clear the desired B-channel tx fifo */ @@ -263,7 +261,7 @@ static void hfcpci_clear_fifo_tx(struct IsdnCardState *cs, int fifo) if (fifo_state) cs->hw.hfcpci.fifo_en |= fifo_state; Write_hfc(cs, HFCPCI_FIFO_EN, cs->hw.hfcpci.fifo_en); -} +} /*********************************************/ /* read a complete B-frame out of the buffer */ @@ -511,7 +509,6 @@ main_rec_hfcpci(struct BCState *bcs) test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); if (count && receive) goto Begin; - return; } /**************************/ @@ -582,7 +579,6 @@ hfcpci_fill_dfifo(struct IsdnCardState *cs) dev_kfree_skb_any(cs->tx_skb); cs->tx_skb = NULL; - return; } /**************************/ @@ -729,7 +725,6 @@ hfcpci_fill_fifo(struct BCState *bcs) dev_kfree_skb_any(bcs->tx_skb); bcs->tx_skb = NULL; test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); - return; } /**********************************************/ @@ -924,7 +919,6 @@ receive_emsg(struct IsdnCardState *cs) test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); if (count && receive) goto Begin; - return; } /* receive_emsg */ /*********************/ @@ -1350,13 +1344,13 @@ mode_hfcpci(struct BCState *bcs, int mode, int bc) cs->hw.hfcpci.sctrl_r |= SCTRL_B1_ENA; } if (fifo2) { - cs->hw.hfcpci.last_bfifo_cnt[1] = 0; + cs->hw.hfcpci.last_bfifo_cnt[1] = 0; cs->hw.hfcpci.fifo_en |= HFCPCI_FIFOEN_B2; cs->hw.hfcpci.int_m1 |= (HFCPCI_INTS_B2TRANS + HFCPCI_INTS_B2REC); cs->hw.hfcpci.ctmt &= ~2; cs->hw.hfcpci.conn &= ~0x18; } else { - cs->hw.hfcpci.last_bfifo_cnt[0] = 0; + cs->hw.hfcpci.last_bfifo_cnt[0] = 0; cs->hw.hfcpci.fifo_en |= HFCPCI_FIFOEN_B1; cs->hw.hfcpci.int_m1 |= (HFCPCI_INTS_B1TRANS + HFCPCI_INTS_B1REC); cs->hw.hfcpci.ctmt &= ~1; @@ -1642,8 +1636,6 @@ hfcpci_card_msg(struct IsdnCardState *cs, int mt, void *arg) /* this variable is used as card index when more than one cards are present */ static struct pci_dev *dev_hfcpci __devinitdata = NULL; -#endif /* CONFIG_PCI */ - int __devinit setup_hfcpci(struct IsdnCard *card) { @@ -1656,96 +1648,99 @@ setup_hfcpci(struct IsdnCard *card) #ifdef __BIG_ENDIAN #error "not running on big endian machines now" #endif + strcpy(tmp, hfcpci_revision); printk(KERN_INFO "HiSax: HFC-PCI driver Rev. %s\n", HiSax_getrev(tmp)); -#ifdef CONFIG_PCI + cs->hw.hfcpci.int_s1 = 0; cs->dc.hfcpci.ph_state = 0; cs->hw.hfcpci.fifo = 255; - if (cs->typ == ISDN_CTYPE_HFC_PCI) { - i = 0; - while (id_list[i].vendor_id) { - tmp_hfcpci = pci_find_device(id_list[i].vendor_id, - id_list[i].device_id, - dev_hfcpci); - i++; - if (tmp_hfcpci) { - if (pci_enable_device(tmp_hfcpci)) - continue; - pci_set_master(tmp_hfcpci); - if ((card->para[0]) && (card->para[0] != (tmp_hfcpci->resource[ 0].start & PCI_BASE_ADDRESS_IO_MASK))) - continue; - else - break; - } - } - + if (cs->typ != ISDN_CTYPE_HFC_PCI) + return(0); + + i = 0; + while (id_list[i].vendor_id) { + tmp_hfcpci = pci_find_device(id_list[i].vendor_id, + id_list[i].device_id, + dev_hfcpci); + i++; if (tmp_hfcpci) { - i--; - dev_hfcpci = tmp_hfcpci; /* old device */ - cs->hw.hfcpci.dev = dev_hfcpci; - cs->irq = dev_hfcpci->irq; - if (!cs->irq) { - printk(KERN_WARNING "HFC-PCI: No IRQ for PCI card found\n"); - return (0); - } - cs->hw.hfcpci.pci_io = (char *)(unsigned long)dev_hfcpci->resource[1].start; - printk(KERN_INFO "HiSax: HFC-PCI card manufacturer: %s card name: %s\n", id_list[i].vendor_name, id_list[i].card_name); - } else { - printk(KERN_WARNING "HFC-PCI: No PCI card found\n"); - return (0); - } - if (!cs->hw.hfcpci.pci_io) { - printk(KERN_WARNING "HFC-PCI: No IO-Mem for PCI card found\n"); - return (0); - } - /* Allocate memory for FIFOS */ - /* Because the HFC-PCI needs a 32K physical alignment, we */ - /* need to allocate the double mem and align the address */ - if (!(cs->hw.hfcpci.share_start = kmalloc(65536, GFP_KERNEL))) { - printk(KERN_WARNING "HFC-PCI: Error allocating memory for FIFO!\n"); - return 0; + if (pci_enable_device(tmp_hfcpci)) + continue; + pci_set_master(tmp_hfcpci); + if ((card->para[0]) && (card->para[0] != (tmp_hfcpci->resource[ 0].start & PCI_BASE_ADDRESS_IO_MASK))) + continue; + else + break; } - cs->hw.hfcpci.fifos = (void *) - (((ulong) cs->hw.hfcpci.share_start) & ~0x7FFF) + 0x8000; - pci_write_config_dword(cs->hw.hfcpci.dev, 0x80, (u_int) virt_to_bus(cs->hw.hfcpci.fifos)); - cs->hw.hfcpci.pci_io = ioremap((ulong) cs->hw.hfcpci.pci_io, 256); - printk(KERN_INFO - "HFC-PCI: defined at mem %p fifo %p(%#x) IRQ %d HZ %d\n", - cs->hw.hfcpci.pci_io, - cs->hw.hfcpci.fifos, - (u_int) virt_to_bus(cs->hw.hfcpci.fifos), - cs->irq, HZ); - spin_lock_irqsave(&cs->lock, flags); - pci_write_config_word(cs->hw.hfcpci.dev, PCI_COMMAND, PCI_ENA_MEMIO); /* enable memory mapped ports, disable busmaster */ - cs->hw.hfcpci.int_m2 = 0; /* disable alle interrupts */ - cs->hw.hfcpci.int_m1 = 0; - Write_hfc(cs, HFCPCI_INT_M1, cs->hw.hfcpci.int_m1); - Write_hfc(cs, HFCPCI_INT_M2, cs->hw.hfcpci.int_m2); - /* At this point the needed PCI config is done */ - /* fifos are still not enabled */ - INIT_WORK(&cs->tqueue, hfcpci_bh); - cs->setstack_d = setstack_hfcpci; - cs->BC_Send_Data = &hfcpci_send_data; - cs->readisac = NULL; - cs->writeisac = NULL; - cs->readisacfifo = NULL; - cs->writeisacfifo = NULL; - cs->BC_Read_Reg = NULL; - cs->BC_Write_Reg = NULL; - cs->irq_func = &hfcpci_interrupt; - cs->irq_flags |= IRQF_SHARED; - cs->hw.hfcpci.timer.function = (void *) hfcpci_Timer; - cs->hw.hfcpci.timer.data = (long) cs; - init_timer(&cs->hw.hfcpci.timer); - cs->cardmsg = &hfcpci_card_msg; - cs->auxcmd = &hfcpci_auxcmd; - spin_unlock_irqrestore(&cs->lock, flags); - return (1); - } else - return (0); /* no valid card type */ -#else - printk(KERN_WARNING "HFC-PCI: NO_PCI_BIOS\n"); - return (0); -#endif /* CONFIG_PCI */ + } + + if (!tmp_hfcpci) { + printk(KERN_WARNING "HFC-PCI: No PCI card found\n"); + return (0); + } + + i--; + dev_hfcpci = tmp_hfcpci; /* old device */ + cs->hw.hfcpci.dev = dev_hfcpci; + cs->irq = dev_hfcpci->irq; + if (!cs->irq) { + printk(KERN_WARNING "HFC-PCI: No IRQ for PCI card found\n"); + return (0); + } + cs->hw.hfcpci.pci_io = (char *)(unsigned long)dev_hfcpci->resource[1].start; + printk(KERN_INFO "HiSax: HFC-PCI card manufacturer: %s card name: %s\n", id_list[i].vendor_name, id_list[i].card_name); + + if (!cs->hw.hfcpci.pci_io) { + printk(KERN_WARNING "HFC-PCI: No IO-Mem for PCI card found\n"); + return (0); + } + /* Allocate memory for FIFOS */ + /* Because the HFC-PCI needs a 32K physical alignment, we */ + /* need to allocate the double mem and align the address */ + if (!(cs->hw.hfcpci.share_start = kmalloc(65536, GFP_KERNEL))) { + printk(KERN_WARNING "HFC-PCI: Error allocating memory for FIFO!\n"); + return 0; + } + cs->hw.hfcpci.fifos = (void *) + (((ulong) cs->hw.hfcpci.share_start) & ~0x7FFF) + 0x8000; + pci_write_config_dword(cs->hw.hfcpci.dev, 0x80, (u_int) virt_to_bus(cs->hw.hfcpci.fifos)); + cs->hw.hfcpci.pci_io = ioremap((ulong) cs->hw.hfcpci.pci_io, 256); + printk(KERN_INFO + "HFC-PCI: defined at mem %p fifo %p(%#x) IRQ %d HZ %d\n", + cs->hw.hfcpci.pci_io, + cs->hw.hfcpci.fifos, + (u_int) virt_to_bus(cs->hw.hfcpci.fifos), + cs->irq, HZ); + + spin_lock_irqsave(&cs->lock, flags); + + pci_write_config_word(cs->hw.hfcpci.dev, PCI_COMMAND, PCI_ENA_MEMIO); /* enable memory mapped ports, disable busmaster */ + cs->hw.hfcpci.int_m2 = 0; /* disable alle interrupts */ + cs->hw.hfcpci.int_m1 = 0; + Write_hfc(cs, HFCPCI_INT_M1, cs->hw.hfcpci.int_m1); + Write_hfc(cs, HFCPCI_INT_M2, cs->hw.hfcpci.int_m2); + /* At this point the needed PCI config is done */ + /* fifos are still not enabled */ + + INIT_WORK(&cs->tqueue, hfcpci_bh); + cs->setstack_d = setstack_hfcpci; + cs->BC_Send_Data = &hfcpci_send_data; + cs->readisac = NULL; + cs->writeisac = NULL; + cs->readisacfifo = NULL; + cs->writeisacfifo = NULL; + cs->BC_Read_Reg = NULL; + cs->BC_Write_Reg = NULL; + cs->irq_func = &hfcpci_interrupt; + cs->irq_flags |= IRQF_SHARED; + cs->hw.hfcpci.timer.function = (void *) hfcpci_Timer; + cs->hw.hfcpci.timer.data = (long) cs; + init_timer(&cs->hw.hfcpci.timer); + cs->cardmsg = &hfcpci_card_msg; + cs->auxcmd = &hfcpci_auxcmd; + + spin_unlock_irqrestore(&cs->lock, flags); + + return (1); } diff --git a/drivers/isdn/hisax/nj_s.c b/drivers/isdn/hisax/nj_s.c index c09ffb135330..fa2db87667c8 100644 --- a/drivers/isdn/hisax/nj_s.c +++ b/drivers/isdn/hisax/nj_s.c @@ -148,107 +148,87 @@ NETjet_S_card_msg(struct IsdnCardState *cs, int mt, void *arg) return(0); } -static struct pci_dev *dev_netjet __devinitdata = NULL; - -int __devinit -setup_netjet_s(struct IsdnCard *card) +static int __devinit njs_pci_probe(struct pci_dev *dev_netjet, + struct IsdnCardState *cs) { - int bytecnt,cfg; - struct IsdnCardState *cs = card->cs; - char tmp[64]; + int cfg; -#ifdef __BIG_ENDIAN -#error "not running on big endian machines now" -#endif - strcpy(tmp, NETjet_S_revision); - printk(KERN_INFO "HiSax: Traverse Tech. NETjet-S driver Rev. %s\n", HiSax_getrev(tmp)); - if (cs->typ != ISDN_CTYPE_NETJET_S) + if (pci_enable_device(dev_netjet)) return(0); - test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); + pci_set_master(dev_netjet); + cs->irq = dev_netjet->irq; + if (!cs->irq) { + printk(KERN_WARNING "NETjet-S: No IRQ for PCI card found\n"); + return(0); + } + cs->hw.njet.base = pci_resource_start(dev_netjet, 0); + if (!cs->hw.njet.base) { + printk(KERN_WARNING "NETjet-S: No IO-Adr for PCI card found\n"); + return(0); + } + /* the TJ300 and TJ320 must be detected, the IRQ handling is different + * unfortunatly the chips use the same device ID, but the TJ320 has + * the bit20 in status PCI cfg register set + */ + pci_read_config_dword(dev_netjet, 0x04, &cfg); + if (cfg & 0x00100000) + cs->subtyp = 1; /* TJ320 */ + else + cs->subtyp = 0; /* TJ300 */ + /* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG www.formula-n.com */ + if ((dev_netjet->subsystem_vendor == 0x55) && + (dev_netjet->subsystem_device == 0x02)) { + printk(KERN_WARNING "Netjet: You tried to load this driver with an incompatible TigerJet-card\n"); + printk(KERN_WARNING "Use type=41 for Formula-n enter:now ISDN PCI and compatible\n"); + return(0); + } + /* end new code */ -#ifdef CONFIG_PCI + return(1); +} - for ( ;; ) - { - if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET, - PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { - if (pci_enable_device(dev_netjet)) - return(0); - pci_set_master(dev_netjet); - cs->irq = dev_netjet->irq; - if (!cs->irq) { - printk(KERN_WARNING "NETjet-S: No IRQ for PCI card found\n"); - return(0); - } - cs->hw.njet.base = pci_resource_start(dev_netjet, 0); - if (!cs->hw.njet.base) { - printk(KERN_WARNING "NETjet-S: No IO-Adr for PCI card found\n"); - return(0); - } - /* the TJ300 and TJ320 must be detected, the IRQ handling is different - * unfortunatly the chips use the same device ID, but the TJ320 has - * the bit20 in status PCI cfg register set - */ - pci_read_config_dword(dev_netjet, 0x04, &cfg); - if (cfg & 0x00100000) - cs->subtyp = 1; /* TJ320 */ - else - cs->subtyp = 0; /* TJ300 */ - /* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG www.formula-n.com */ - if ((dev_netjet->subsystem_vendor == 0x55) && - (dev_netjet->subsystem_device == 0x02)) { - printk(KERN_WARNING "Netjet: You tried to load this driver with an incompatible TigerJet-card\n"); - printk(KERN_WARNING "Use type=41 for Formula-n enter:now ISDN PCI and compatible\n"); - return(0); - } - /* end new code */ - } else { - printk(KERN_WARNING "NETjet-S: No PCI card found\n"); - return(0); - } +static int __devinit njs_cs_init(struct IsdnCard *card, + struct IsdnCardState *cs) +{ - cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; - cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF; + cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; + cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF; - cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); + cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ + byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); + mdelay(10); - cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); + cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ + byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); + mdelay(10); - cs->hw.njet.auxd = 0xC0; - cs->hw.njet.dmactrl = 0; + cs->hw.njet.auxd = 0xC0; + cs->hw.njet.dmactrl = 0; - byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); - byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); - byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); + byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); + byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); + byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); - switch ( ( ( NETjet_ReadIC( cs, ISAC_RBCH ) >> 5 ) & 3 ) ) - { - case 0 : - break; + switch ( ( ( NETjet_ReadIC( cs, ISAC_RBCH ) >> 5 ) & 3 ) ) + { + case 0 : + return 1; /* end loop */ - case 3 : - printk( KERN_WARNING "NETjet-S: NETspider-U PCI card found\n" ); - continue; + case 3 : + printk( KERN_WARNING "NETjet-S: NETspider-U PCI card found\n" ); + return -1; /* continue looping */ - default : - printk( KERN_WARNING "NETjet-S: No PCI card found\n" ); - return 0; - } - break; + default : + printk( KERN_WARNING "NETjet-S: No PCI card found\n" ); + return 0; /* end loop & function */ } -#else - - printk(KERN_WARNING "NETjet-S: NO_PCI_BIOS\n"); - printk(KERN_WARNING "NETjet-S: unable to config NETJET-S PCI\n"); - return (0); - -#endif /* CONFIG_PCI */ + return 1; /* end loop */ +} - bytecnt = 256; +static int __devinit njs_cs_init_rest(struct IsdnCard *card, + struct IsdnCardState *cs) +{ + const int bytecnt = 256; printk(KERN_INFO "NETjet-S: %s card configured at %#lx IRQ %d\n", @@ -273,5 +253,47 @@ setup_netjet_s(struct IsdnCard *card) cs->irq_func = &netjet_s_interrupt; cs->irq_flags |= IRQF_SHARED; ISACVersion(cs, "NETjet-S:"); + return (1); } + +static struct pci_dev *dev_netjet __devinitdata = NULL; + +int __devinit +setup_netjet_s(struct IsdnCard *card) +{ + int ret; + struct IsdnCardState *cs = card->cs; + char tmp[64]; + +#ifdef __BIG_ENDIAN +#error "not running on big endian machines now" +#endif + strcpy(tmp, NETjet_S_revision); + printk(KERN_INFO "HiSax: Traverse Tech. NETjet-S driver Rev. %s\n", HiSax_getrev(tmp)); + if (cs->typ != ISDN_CTYPE_NETJET_S) + return(0); + test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); + + for ( ;; ) + { + if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET, + PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { + ret = njs_pci_probe(dev_netjet, cs); + if (!ret) + return(0); + } else { + printk(KERN_WARNING "NETjet-S: No PCI card found\n"); + return(0); + } + + ret = njs_cs_init(card, cs); + if (!ret) + return(0); + if (ret > 0) + break; + /* otherwise, ret < 0, continue looping */ + } + + return njs_cs_init_rest(card, cs); +} diff --git a/drivers/isdn/hisax/nj_u.c b/drivers/isdn/hisax/nj_u.c index 8202cf34ecae..f017d3816b1d 100644 --- a/drivers/isdn/hisax/nj_u.c +++ b/drivers/isdn/hisax/nj_u.c @@ -128,93 +128,69 @@ NETjet_U_card_msg(struct IsdnCardState *cs, int mt, void *arg) return(0); } -static struct pci_dev *dev_netjet __devinitdata = NULL; - -int __devinit -setup_netjet_u(struct IsdnCard *card) +static int __devinit nju_pci_probe(struct pci_dev *dev_netjet, + struct IsdnCardState *cs) { - int bytecnt; - struct IsdnCardState *cs = card->cs; - char tmp[64]; -#ifdef CONFIG_PCI -#endif -#ifdef __BIG_ENDIAN -#error "not running on big endian machines now" -#endif - strcpy(tmp, NETjet_U_revision); - printk(KERN_INFO "HiSax: Traverse Tech. NETspider-U driver Rev. %s\n", HiSax_getrev(tmp)); - if (cs->typ != ISDN_CTYPE_NETJET_U) + if (pci_enable_device(dev_netjet)) return(0); - test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); - -#ifdef CONFIG_PCI + pci_set_master(dev_netjet); + cs->irq = dev_netjet->irq; + if (!cs->irq) { + printk(KERN_WARNING "NETspider-U: No IRQ for PCI card found\n"); + return(0); + } + cs->hw.njet.base = pci_resource_start(dev_netjet, 0); + if (!cs->hw.njet.base) { + printk(KERN_WARNING "NETspider-U: No IO-Adr for PCI card found\n"); + return(0); + } - for ( ;; ) - { - if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET, - PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { - if (pci_enable_device(dev_netjet)) - return(0); - pci_set_master(dev_netjet); - cs->irq = dev_netjet->irq; - if (!cs->irq) { - printk(KERN_WARNING "NETspider-U: No IRQ for PCI card found\n"); - return(0); - } - cs->hw.njet.base = pci_resource_start(dev_netjet, 0); - if (!cs->hw.njet.base) { - printk(KERN_WARNING "NETspider-U: No IO-Adr for PCI card found\n"); - return(0); - } - } else { - printk(KERN_WARNING "NETspider-U: No PCI card found\n"); - return(0); - } + return (1); +} - cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; - cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF; - mdelay(10); +static int __devinit nju_cs_init(struct IsdnCard *card, + struct IsdnCardState *cs) +{ + cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; + cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF; + mdelay(10); - cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); + cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ + byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); + mdelay(10); - cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ - byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); - mdelay(10); + cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ + byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); + mdelay(10); - cs->hw.njet.auxd = 0xC0; - cs->hw.njet.dmactrl = 0; + cs->hw.njet.auxd = 0xC0; + cs->hw.njet.dmactrl = 0; - byteout(cs->hw.njet.auxa, 0); - byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); - byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); - byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); + byteout(cs->hw.njet.auxa, 0); + byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); + byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); + byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); - switch ( ( ( NETjet_ReadIC( cs, ICC_RBCH ) >> 5 ) & 3 ) ) - { - case 3 : - break; + switch ( ( ( NETjet_ReadIC( cs, ICC_RBCH ) >> 5 ) & 3 ) ) + { + case 3 : + return 1; /* end loop */ - case 0 : - printk( KERN_WARNING "NETspider-U: NETjet-S PCI card found\n" ); - continue; + case 0 : + printk( KERN_WARNING "NETspider-U: NETjet-S PCI card found\n" ); + return -1; /* continue looping */ - default : - printk( KERN_WARNING "NETspider-U: No PCI card found\n" ); - return 0; - } - break; + default : + printk( KERN_WARNING "NETspider-U: No PCI card found\n" ); + return 0; /* end loop & function */ } -#else - - printk(KERN_WARNING "NETspider-U: NO_PCI_BIOS\n"); - printk(KERN_WARNING "NETspider-U: unable to config NETspider-U PCI\n"); - return (0); - -#endif /* CONFIG_PCI */ + return 1; /* end loop */ +} - bytecnt = 256; +static int __devinit nju_cs_init_rest(struct IsdnCard *card, + struct IsdnCardState *cs) +{ + const int bytecnt = 256; printk(KERN_INFO "NETspider-U: PCI card configured at %#lx IRQ %d\n", @@ -239,5 +215,48 @@ setup_netjet_u(struct IsdnCard *card) cs->irq_func = &netjet_u_interrupt; cs->irq_flags |= IRQF_SHARED; ICCVersion(cs, "NETspider-U:"); + return (1); } + +static struct pci_dev *dev_netjet __devinitdata = NULL; + +int __devinit +setup_netjet_u(struct IsdnCard *card) +{ + int ret; + struct IsdnCardState *cs = card->cs; + char tmp[64]; + +#ifdef __BIG_ENDIAN +#error "not running on big endian machines now" +#endif + + strcpy(tmp, NETjet_U_revision); + printk(KERN_INFO "HiSax: Traverse Tech. NETspider-U driver Rev. %s\n", HiSax_getrev(tmp)); + if (cs->typ != ISDN_CTYPE_NETJET_U) + return(0); + test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); + + for ( ;; ) + { + if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET, + PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { + ret = nju_pci_probe(dev_netjet, cs); + if (!ret) + return(0); + } else { + printk(KERN_WARNING "NETspider-U: No PCI card found\n"); + return(0); + } + + ret = nju_cs_init(card, cs); + if (!ret) + return (0); + if (ret > 0) + break; + /* ret < 0 == continue looping */ + } + + return nju_cs_init_rest(card, cs); +} diff --git a/drivers/isdn/hisax/sedlbauer.c b/drivers/isdn/hisax/sedlbauer.c index 030d1625c5c6..ad06f3cc60fb 100644 --- a/drivers/isdn/hisax/sedlbauer.c +++ b/drivers/isdn/hisax/sedlbauer.c @@ -451,6 +451,9 @@ Sedl_card_msg(struct IsdnCardState *cs, int mt, void *arg) spin_unlock_irqrestore(&cs->lock, flags); return(0); case CARD_RELEASE: + if (cs->hw.sedl.bus == SEDL_BUS_PCI) + /* disable all IRQ */ + byteout(cs->hw.sedl.cfg_reg+ 5, 0); if (cs->hw.sedl.chip == SEDL_CHIP_ISAC_ISAR) { spin_lock_irqsave(&cs->lock, flags); writereg(cs->hw.sedl.adr, cs->hw.sedl.hscx, @@ -468,6 +471,9 @@ Sedl_card_msg(struct IsdnCardState *cs, int mt, void *arg) return(0); case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); + if (cs->hw.sedl.bus == SEDL_BUS_PCI) + /* enable all IRQ */ + byteout(cs->hw.sedl.cfg_reg+ 5, 0x02); reset_sedlbauer(cs); if (cs->hw.sedl.chip == SEDL_CHIP_ISAC_ISAR) { clear_pending_isac_ints(cs); @@ -667,7 +673,7 @@ setup_sedlbauer(struct IsdnCard *card) byteout(cs->hw.sedl.cfg_reg, 0xff); byteout(cs->hw.sedl.cfg_reg, 0x00); byteout(cs->hw.sedl.cfg_reg+ 2, 0xdd); - byteout(cs->hw.sedl.cfg_reg+ 5, 0x02); + byteout(cs->hw.sedl.cfg_reg+ 5, 0); /* disable all IRQ */ byteout(cs->hw.sedl.cfg_reg +3, cs->hw.sedl.reset_on); mdelay(2); byteout(cs->hw.sedl.cfg_reg +3, cs->hw.sedl.reset_off); diff --git a/drivers/isdn/i4l/Kconfig b/drivers/isdn/i4l/Kconfig index 3ef567b99c74..e91c187992dd 100644 --- a/drivers/isdn/i4l/Kconfig +++ b/drivers/isdn/i4l/Kconfig @@ -86,7 +86,6 @@ config ISDN_X25 menu "ISDN feature submodules" - depends on ISDN config ISDN_DRV_LOOP tristate "isdnloop support" @@ -100,7 +99,7 @@ config ISDN_DRV_LOOP config ISDN_DIVERSION tristate "Support isdn diversion services" - depends on ISDN && ISDN_I4L + depends on ISDN_I4L help This option allows you to use some supplementary diversion services in conjunction with the HiSax driver on an EURO/DSS1 @@ -120,13 +119,13 @@ config ISDN_DIVERSION endmenu comment "ISDN4Linux hardware drivers" - depends on NET && ISDN && ISDN_I4L + depends on ISDN_I4L source "drivers/isdn/hisax/Kconfig" menu "Active cards" - depends on NET && ISDN && ISDN_I4L!=n + depends on ISDN_I4L!=n source "drivers/isdn/icn/Kconfig" diff --git a/drivers/isdn/sc/card.h b/drivers/isdn/sc/card.h index 4fbfa825c3a2..5992f63c383e 100644 --- a/drivers/isdn/sc/card.h +++ b/drivers/isdn/sc/card.h @@ -125,7 +125,7 @@ int sendmessage(int card, unsigned int procid, unsigned int type, int receivemessage(int card, RspMessage *rspmsg); int sc_ioctl(int card, scs_ioctl *data); int setup_buffers(int card, int c); -void check_reset(unsigned long data); +void sc_check_reset(unsigned long data); void check_phystat(unsigned long data); #endif /* CARD_H */ diff --git a/drivers/isdn/sc/command.c b/drivers/isdn/sc/command.c index b7bb7cbcf503..0e4969c2ef95 100644 --- a/drivers/isdn/sc/command.c +++ b/drivers/isdn/sc/command.c @@ -344,7 +344,7 @@ int reset(int card) spin_lock_irqsave(&sc_adapter[card]->lock, flags); init_timer(&sc_adapter[card]->reset_timer); - sc_adapter[card]->reset_timer.function = check_reset; + sc_adapter[card]->reset_timer.function = sc_check_reset; sc_adapter[card]->reset_timer.data = card; sc_adapter[card]->reset_timer.expires = jiffies + CHECKRESET_TIME; add_timer(&sc_adapter[card]->reset_timer); diff --git a/drivers/isdn/sc/timer.c b/drivers/isdn/sc/timer.c index cc1b8861be2a..91fbe0dc28ec 100644 --- a/drivers/isdn/sc/timer.c +++ b/drivers/isdn/sc/timer.c @@ -43,7 +43,7 @@ static void setup_ports(int card) * Then, check to see if the signate has been set. Next, set the * signature to a known value and issue a startproc if needed. */ -void check_reset(unsigned long data) +void sc_check_reset(unsigned long data) { unsigned long flags; unsigned long sig; diff --git a/drivers/kvm/Kconfig b/drivers/kvm/Kconfig index e8e37d826478..33fa28a8c199 100644 --- a/drivers/kvm/Kconfig +++ b/drivers/kvm/Kconfig @@ -1,12 +1,17 @@ # # KVM configuration # -menu "Virtualization" +menuconfig VIRTUALIZATION + bool "Virtualization" depends on X86 + default y + +if VIRTUALIZATION config KVM tristate "Kernel-based Virtual Machine (KVM) support" depends on X86 && EXPERIMENTAL + depends on X86_CMPXCHG64 || 64BIT ---help--- Support hosting fully virtualized guest machines using hardware virtualization extensions. You will need a fairly recent @@ -35,4 +40,4 @@ config KVM_AMD Provides support for KVM on AMD processors equipped with the AMD-V (SVM) extensions. -endmenu +endif # VIRTUALIZATION diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h index 152312c1fafa..a7c5e6bee034 100644 --- a/drivers/kvm/kvm.h +++ b/drivers/kvm/kvm.h @@ -10,6 +10,8 @@ #include <linux/list.h> #include <linux/mutex.h> #include <linux/spinlock.h> +#include <linux/signal.h> +#include <linux/sched.h> #include <linux/mm.h> #include <asm/signal.h> @@ -18,6 +20,7 @@ #include <linux/kvm_para.h> #define CR0_PE_MASK (1ULL << 0) +#define CR0_MP_MASK (1ULL << 1) #define CR0_TS_MASK (1ULL << 3) #define CR0_NE_MASK (1ULL << 5) #define CR0_WP_MASK (1ULL << 16) @@ -42,7 +45,8 @@ (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK \ | CR0_NW_MASK | CR0_CD_MASK) #define KVM_VM_CR0_ALWAYS_ON \ - (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK) + (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK | CR0_TS_MASK \ + | CR0_MP_MASK) #define KVM_GUEST_CR4_MASK \ (CR4_PSE_MASK | CR4_PAE_MASK | CR4_PGE_MASK | CR4_VMXE_MASK | CR4_VME_MASK) #define KVM_PMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK) @@ -51,10 +55,10 @@ #define INVALID_PAGE (~(hpa_t)0) #define UNMAPPED_GVA (~(gpa_t)0) -#define KVM_MAX_VCPUS 1 +#define KVM_MAX_VCPUS 4 #define KVM_ALIAS_SLOTS 4 #define KVM_MEMORY_SLOTS 4 -#define KVM_NUM_MMU_PAGES 256 +#define KVM_NUM_MMU_PAGES 1024 #define KVM_MIN_FREE_MMU_PAGES 5 #define KVM_REFILL_PAGES 25 #define KVM_MAX_CPUID_ENTRIES 40 @@ -80,6 +84,11 @@ #define KVM_PIO_PAGE_OFFSET 1 /* + * vcpu->requests bit members + */ +#define KVM_TLB_FLUSH 0 + +/* * Address types: * * gva - guest virtual address @@ -137,7 +146,7 @@ struct kvm_mmu_page { gfn_t gfn; union kvm_mmu_page_role role; - hpa_t page_hpa; + u64 *spt; unsigned long slot_bitmap; /* One bit set per slot which has memory * in this shadow page. */ @@ -232,6 +241,7 @@ struct kvm_pio_request { struct page *guest_pages[2]; unsigned guest_page_offset; int in; + int port; int size; int string; int down; @@ -252,8 +262,70 @@ struct kvm_stat { u32 halt_exits; u32 request_irq_exits; u32 irq_exits; + u32 light_exits; + u32 efer_reload; +}; + +struct kvm_io_device { + void (*read)(struct kvm_io_device *this, + gpa_t addr, + int len, + void *val); + void (*write)(struct kvm_io_device *this, + gpa_t addr, + int len, + const void *val); + int (*in_range)(struct kvm_io_device *this, gpa_t addr); + void (*destructor)(struct kvm_io_device *this); + + void *private; +}; + +static inline void kvm_iodevice_read(struct kvm_io_device *dev, + gpa_t addr, + int len, + void *val) +{ + dev->read(dev, addr, len, val); +} + +static inline void kvm_iodevice_write(struct kvm_io_device *dev, + gpa_t addr, + int len, + const void *val) +{ + dev->write(dev, addr, len, val); +} + +static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr) +{ + return dev->in_range(dev, addr); +} + +static inline void kvm_iodevice_destructor(struct kvm_io_device *dev) +{ + if (dev->destructor) + dev->destructor(dev); +} + +/* + * It would be nice to use something smarter than a linear search, TBD... + * Thankfully we dont expect many devices to register (famous last words :), + * so until then it will suffice. At least its abstracted so we can change + * in one place. + */ +struct kvm_io_bus { + int dev_count; +#define NR_IOBUS_DEVS 6 + struct kvm_io_device *devs[NR_IOBUS_DEVS]; }; +void kvm_io_bus_init(struct kvm_io_bus *bus); +void kvm_io_bus_destroy(struct kvm_io_bus *bus); +struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr); +void kvm_io_bus_register_dev(struct kvm_io_bus *bus, + struct kvm_io_device *dev); + struct kvm_vcpu { struct kvm *kvm; union { @@ -266,6 +338,8 @@ struct kvm_vcpu { u64 host_tsc; struct kvm_run *run; int interrupt_window_open; + int guest_mode; + unsigned long requests; unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */ #define NR_IRQ_WORDS KVM_IRQ_BITMAP_SIZE(unsigned long) unsigned long irq_pending[NR_IRQ_WORDS]; @@ -285,15 +359,20 @@ struct kvm_vcpu { u64 apic_base; u64 ia32_misc_enable_msr; int nmsrs; + int save_nmsrs; + int msr_offset_efer; +#ifdef CONFIG_X86_64 + int msr_offset_kernel_gs_base; +#endif struct vmx_msr_entry *guest_msrs; struct vmx_msr_entry *host_msrs; - struct list_head free_pages; - struct kvm_mmu_page page_header_buf[KVM_NUM_MMU_PAGES]; struct kvm_mmu mmu; struct kvm_mmu_memory_cache mmu_pte_chain_cache; struct kvm_mmu_memory_cache mmu_rmap_desc_cache; + struct kvm_mmu_memory_cache mmu_page_cache; + struct kvm_mmu_memory_cache mmu_page_header_cache; gfn_t last_pt_write_gfn; int last_pt_write_count; @@ -305,6 +384,11 @@ struct kvm_vcpu { char *guest_fx_image; int fpu_active; int guest_fpu_loaded; + struct vmx_host_state { + int loaded; + u16 fs_sel, gs_sel, ldt_sel; + int fs_gs_ldt_reload_needed; + } vmx_host_state; int mmio_needed; int mmio_read_completed; @@ -331,6 +415,7 @@ struct kvm_vcpu { u32 ar; } tr, es, ds, fs, gs; } rmode; + int halt_request; /* real mode on Intel only */ int cpuid_nent; struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES]; @@ -362,12 +447,15 @@ struct kvm { struct list_head active_mmu_pages; int n_free_mmu_pages; struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; + int nvcpus; struct kvm_vcpu vcpus[KVM_MAX_VCPUS]; int memory_config_version; int busy; unsigned long rmap_overflow; struct list_head vm_list; struct file *filp; + struct kvm_io_bus mmio_bus; + struct kvm_io_bus pio_bus; }; struct descriptor_table { @@ -488,6 +576,7 @@ int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, int size, unsigned long count, int string, int down, gva_t address, int rep, unsigned port); void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); +int kvm_emulate_halt(struct kvm_vcpu *vcpu); int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address); int emulate_clts(struct kvm_vcpu *vcpu); int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr, @@ -511,6 +600,7 @@ void save_msrs(struct vmx_msr_entry *e, int n); void kvm_resched(struct kvm_vcpu *vcpu); void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); +void kvm_flush_remote_tlbs(struct kvm *kvm); int kvm_read_guest(struct kvm_vcpu *vcpu, gva_t addr, @@ -524,10 +614,12 @@ int kvm_write_guest(struct kvm_vcpu *vcpu, unsigned long segment_base(u16 selector); -void kvm_mmu_pre_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes); -void kvm_mmu_post_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes); +void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, + const u8 *old, const u8 *new, int bytes); int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); +int kvm_mmu_load(struct kvm_vcpu *vcpu); +void kvm_mmu_unload(struct kvm_vcpu *vcpu); int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run); @@ -539,6 +631,14 @@ static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, return vcpu->mmu.page_fault(vcpu, gva, error_code); } +static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) +{ + if (likely(vcpu->mmu.root_hpa != INVALID_PAGE)) + return 0; + + return kvm_mmu_load(vcpu); +} + static inline int is_long_mode(struct kvm_vcpu *vcpu) { #ifdef CONFIG_X86_64 diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 8f1f07adb04e..1b206f197c6b 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -16,34 +16,33 @@ */ #include "kvm.h" +#include "x86_emulate.h" +#include "segment_descriptor.h" #include <linux/kvm.h> #include <linux/module.h> #include <linux/errno.h> -#include <linux/magic.h> -#include <asm/processor.h> #include <linux/percpu.h> #include <linux/gfp.h> -#include <asm/msr.h> #include <linux/mm.h> #include <linux/miscdevice.h> #include <linux/vmalloc.h> -#include <asm/uaccess.h> #include <linux/reboot.h> -#include <asm/io.h> #include <linux/debugfs.h> #include <linux/highmem.h> #include <linux/file.h> -#include <asm/desc.h> #include <linux/sysdev.h> #include <linux/cpu.h> -#include <linux/file.h> -#include <linux/fs.h> -#include <linux/mount.h> #include <linux/sched.h> +#include <linux/cpumask.h> +#include <linux/smp.h> +#include <linux/anon_inodes.h> -#include "x86_emulate.h" -#include "segment_descriptor.h" +#include <asm/processor.h> +#include <asm/msr.h> +#include <asm/io.h> +#include <asm/uaccess.h> +#include <asm/desc.h> MODULE_AUTHOR("Qumranet"); MODULE_LICENSE("GPL"); @@ -51,8 +50,12 @@ MODULE_LICENSE("GPL"); static DEFINE_SPINLOCK(kvm_lock); static LIST_HEAD(vm_list); +static cpumask_t cpus_hardware_enabled; + struct kvm_arch_ops *kvm_arch_ops; +static void hardware_disable(void *ignored); + #define STAT_OFFSET(x) offsetof(struct kvm_vcpu, stat.x) static struct kvm_stats_debugfs_item { @@ -72,13 +75,13 @@ static struct kvm_stats_debugfs_item { { "halt_exits", STAT_OFFSET(halt_exits) }, { "request_irq", STAT_OFFSET(request_irq_exits) }, { "irq_exits", STAT_OFFSET(irq_exits) }, + { "light_exits", STAT_OFFSET(light_exits) }, + { "efer_reload", STAT_OFFSET(efer_reload) }, { NULL } }; static struct dentry *debugfs_dir; -struct vfsmount *kvmfs_mnt; - #define MAX_IO_MSRS 256 #define CR0_RESEVED_BITS 0xffffffff1ffaffc0ULL @@ -100,55 +103,6 @@ struct segment_descriptor_64 { static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl, unsigned long arg); -static struct inode *kvmfs_inode(struct file_operations *fops) -{ - int error = -ENOMEM; - struct inode *inode = new_inode(kvmfs_mnt->mnt_sb); - - if (!inode) - goto eexit_1; - - inode->i_fop = fops; - - /* - * Mark the inode dirty from the very beginning, - * that way it will never be moved to the dirty - * list because mark_inode_dirty() will think - * that it already _is_ on the dirty list. - */ - inode->i_state = I_DIRTY; - inode->i_mode = S_IRUSR | S_IWUSR; - inode->i_uid = current->fsuid; - inode->i_gid = current->fsgid; - inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - return inode; - -eexit_1: - return ERR_PTR(error); -} - -static struct file *kvmfs_file(struct inode *inode, void *private_data) -{ - struct file *file = get_empty_filp(); - - if (!file) - return ERR_PTR(-ENFILE); - - file->f_path.mnt = mntget(kvmfs_mnt); - file->f_path.dentry = d_alloc_anon(inode); - if (!file->f_path.dentry) - return ERR_PTR(-ENOMEM); - file->f_mapping = inode->i_mapping; - - file->f_pos = 0; - file->f_flags = O_RDWR; - file->f_op = inode->i_fop; - file->f_mode = FMODE_READ | FMODE_WRITE; - file->f_version = 0; - file->private_data = private_data; - return file; -} - unsigned long segment_base(u16 selector) { struct descriptor_table gdt; @@ -307,6 +261,48 @@ static void vcpu_put(struct kvm_vcpu *vcpu) mutex_unlock(&vcpu->mutex); } +static void ack_flush(void *_completed) +{ + atomic_t *completed = _completed; + + atomic_inc(completed); +} + +void kvm_flush_remote_tlbs(struct kvm *kvm) +{ + int i, cpu, needed; + cpumask_t cpus; + struct kvm_vcpu *vcpu; + atomic_t completed; + + atomic_set(&completed, 0); + cpus_clear(cpus); + needed = 0; + for (i = 0; i < kvm->nvcpus; ++i) { + vcpu = &kvm->vcpus[i]; + if (test_and_set_bit(KVM_TLB_FLUSH, &vcpu->requests)) + continue; + cpu = vcpu->cpu; + if (cpu != -1 && cpu != raw_smp_processor_id()) + if (!cpu_isset(cpu, cpus)) { + cpu_set(cpu, cpus); + ++needed; + } + } + + /* + * We really want smp_call_function_mask() here. But that's not + * available, so ipi all cpus in parallel and wait for them + * to complete. + */ + for (cpu = first_cpu(cpus); cpu != NR_CPUS; cpu = next_cpu(cpu, cpus)) + smp_call_function_single(cpu, ack_flush, &completed, 1, 0); + while (atomic_read(&completed) != needed) { + cpu_relax(); + barrier(); + } +} + static struct kvm *kvm_create_vm(void) { struct kvm *kvm = kzalloc(sizeof(struct kvm), GFP_KERNEL); @@ -315,8 +311,13 @@ static struct kvm *kvm_create_vm(void) if (!kvm) return ERR_PTR(-ENOMEM); + kvm_io_bus_init(&kvm->pio_bus); spin_lock_init(&kvm->lock); INIT_LIST_HEAD(&kvm->active_mmu_pages); + spin_lock(&kvm_lock); + list_add(&kvm->vm_list, &vm_list); + spin_unlock(&kvm_lock); + kvm_io_bus_init(&kvm->mmio_bus); for (i = 0; i < KVM_MAX_VCPUS; ++i) { struct kvm_vcpu *vcpu = &kvm->vcpus[i]; @@ -324,10 +325,6 @@ static struct kvm *kvm_create_vm(void) vcpu->cpu = -1; vcpu->kvm = kvm; vcpu->mmu.root_hpa = INVALID_PAGE; - INIT_LIST_HEAD(&vcpu->free_pages); - spin_lock(&kvm_lock); - list_add(&kvm->vm_list, &vm_list); - spin_unlock(&kvm_lock); } return kvm; } @@ -380,6 +377,16 @@ static void free_pio_guest_pages(struct kvm_vcpu *vcpu) } } +static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu) +{ + if (!vcpu->vmcs) + return; + + vcpu_load(vcpu); + kvm_mmu_unload(vcpu); + vcpu_put(vcpu); +} + static void kvm_free_vcpu(struct kvm_vcpu *vcpu) { if (!vcpu->vmcs) @@ -400,6 +407,11 @@ static void kvm_free_vcpus(struct kvm *kvm) { unsigned int i; + /* + * Unpin any mmu pages first. + */ + for (i = 0; i < KVM_MAX_VCPUS; ++i) + kvm_unload_vcpu_mmu(&kvm->vcpus[i]); for (i = 0; i < KVM_MAX_VCPUS; ++i) kvm_free_vcpu(&kvm->vcpus[i]); } @@ -414,6 +426,8 @@ static void kvm_destroy_vm(struct kvm *kvm) spin_lock(&kvm_lock); list_del(&kvm->vm_list); spin_unlock(&kvm_lock); + kvm_io_bus_destroy(&kvm->pio_bus); + kvm_io_bus_destroy(&kvm->mmio_bus); kvm_free_vcpus(kvm); kvm_free_physmem(kvm); kfree(kvm); @@ -969,7 +983,7 @@ EXPORT_SYMBOL_GPL(gfn_to_page); void mark_page_dirty(struct kvm *kvm, gfn_t gfn) { int i; - struct kvm_memory_slot *memslot = NULL; + struct kvm_memory_slot *memslot; unsigned long rel_gfn; for (i = 0; i < kvm->nmemslots; ++i) { @@ -978,7 +992,7 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn) if (gfn >= memslot->base_gfn && gfn < memslot->base_gfn + memslot->npages) { - if (!memslot || !memslot->dirty_bitmap) + if (!memslot->dirty_bitmap) return; rel_gfn = gfn - memslot->base_gfn; @@ -1037,12 +1051,31 @@ static int emulator_write_std(unsigned long addr, return X86EMUL_UNHANDLEABLE; } +static struct kvm_io_device *vcpu_find_mmio_dev(struct kvm_vcpu *vcpu, + gpa_t addr) +{ + /* + * Note that its important to have this wrapper function because + * in the very near future we will be checking for MMIOs against + * the LAPIC as well as the general MMIO bus + */ + return kvm_io_bus_find_dev(&vcpu->kvm->mmio_bus, addr); +} + +static struct kvm_io_device *vcpu_find_pio_dev(struct kvm_vcpu *vcpu, + gpa_t addr) +{ + return kvm_io_bus_find_dev(&vcpu->kvm->pio_bus, addr); +} + static int emulator_read_emulated(unsigned long addr, void *val, unsigned int bytes, struct x86_emulate_ctxt *ctxt) { - struct kvm_vcpu *vcpu = ctxt->vcpu; + struct kvm_vcpu *vcpu = ctxt->vcpu; + struct kvm_io_device *mmio_dev; + gpa_t gpa; if (vcpu->mmio_read_completed) { memcpy(val, vcpu->mmio_data, bytes); @@ -1051,18 +1084,26 @@ static int emulator_read_emulated(unsigned long addr, } else if (emulator_read_std(addr, val, bytes, ctxt) == X86EMUL_CONTINUE) return X86EMUL_CONTINUE; - else { - gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, addr); - if (gpa == UNMAPPED_GVA) - return X86EMUL_PROPAGATE_FAULT; - vcpu->mmio_needed = 1; - vcpu->mmio_phys_addr = gpa; - vcpu->mmio_size = bytes; - vcpu->mmio_is_write = 0; + gpa = vcpu->mmu.gva_to_gpa(vcpu, addr); + if (gpa == UNMAPPED_GVA) + return X86EMUL_PROPAGATE_FAULT; - return X86EMUL_UNHANDLEABLE; + /* + * Is this MMIO handled locally? + */ + mmio_dev = vcpu_find_mmio_dev(vcpu, gpa); + if (mmio_dev) { + kvm_iodevice_read(mmio_dev, gpa, bytes, val); + return X86EMUL_CONTINUE; } + + vcpu->mmio_needed = 1; + vcpu->mmio_phys_addr = gpa; + vcpu->mmio_size = bytes; + vcpu->mmio_is_write = 0; + + return X86EMUL_UNHANDLEABLE; } static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, @@ -1070,18 +1111,20 @@ static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, { struct page *page; void *virt; + unsigned offset = offset_in_page(gpa); if (((gpa + bytes - 1) >> PAGE_SHIFT) != (gpa >> PAGE_SHIFT)) return 0; page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT); if (!page) return 0; - kvm_mmu_pre_write(vcpu, gpa, bytes); mark_page_dirty(vcpu->kvm, gpa >> PAGE_SHIFT); virt = kmap_atomic(page, KM_USER0); - memcpy(virt + offset_in_page(gpa), val, bytes); + if (memcmp(virt + offset_in_page(gpa), val, bytes)) { + kvm_mmu_pte_write(vcpu, gpa, virt + offset, val, bytes); + memcpy(virt + offset_in_page(gpa), val, bytes); + } kunmap_atomic(virt, KM_USER0); - kvm_mmu_post_write(vcpu, gpa, bytes); return 1; } @@ -1090,8 +1133,9 @@ static int emulator_write_emulated(unsigned long addr, unsigned int bytes, struct x86_emulate_ctxt *ctxt) { - struct kvm_vcpu *vcpu = ctxt->vcpu; - gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, addr); + struct kvm_vcpu *vcpu = ctxt->vcpu; + struct kvm_io_device *mmio_dev; + gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, addr); if (gpa == UNMAPPED_GVA) { kvm_arch_ops->inject_page_fault(vcpu, addr, 2); @@ -1101,6 +1145,15 @@ static int emulator_write_emulated(unsigned long addr, if (emulator_write_phys(vcpu, gpa, val, bytes)) return X86EMUL_CONTINUE; + /* + * Is this MMIO handled locally? + */ + mmio_dev = vcpu_find_mmio_dev(vcpu, gpa); + if (mmio_dev) { + kvm_iodevice_write(mmio_dev, gpa, bytes, val); + return X86EMUL_CONTINUE; + } + vcpu->mmio_needed = 1; vcpu->mmio_phys_addr = gpa; vcpu->mmio_size = bytes; @@ -1269,6 +1322,17 @@ int emulate_instruction(struct kvm_vcpu *vcpu, } EXPORT_SYMBOL_GPL(emulate_instruction); +int kvm_emulate_halt(struct kvm_vcpu *vcpu) +{ + if (vcpu->irq_summary) + return 1; + + vcpu->run->exit_reason = KVM_EXIT_HLT; + ++vcpu->stat.halt_exits; + return 0; +} +EXPORT_SYMBOL_GPL(kvm_emulate_halt); + int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run) { unsigned long nr, a0, a1, a2, a3, a4, a5, ret; @@ -1469,6 +1533,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_IA32_MC0_MISC+16: case MSR_IA32_UCODE_REV: case MSR_IA32_PERF_STATUS: + case MSR_IA32_EBL_CR_POWERON: /* MTRR registers */ case 0xfe: case 0x200 ... 0x2ff: @@ -1727,6 +1792,20 @@ static int complete_pio(struct kvm_vcpu *vcpu) return 0; } +void kernel_pio(struct kvm_io_device *pio_dev, struct kvm_vcpu *vcpu) +{ + /* TODO: String I/O for in kernel device */ + + if (vcpu->pio.in) + kvm_iodevice_read(pio_dev, vcpu->pio.port, + vcpu->pio.size, + vcpu->pio_data); + else + kvm_iodevice_write(pio_dev, vcpu->pio.port, + vcpu->pio.size, + vcpu->pio_data); +} + int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, int size, unsigned long count, int string, int down, gva_t address, int rep, unsigned port) @@ -1735,6 +1814,7 @@ int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, int i; int nr_pages = 1; struct page *page; + struct kvm_io_device *pio_dev; vcpu->run->exit_reason = KVM_EXIT_IO; vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT; @@ -1746,17 +1826,27 @@ int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, vcpu->pio.cur_count = count; vcpu->pio.size = size; vcpu->pio.in = in; + vcpu->pio.port = port; vcpu->pio.string = string; vcpu->pio.down = down; vcpu->pio.guest_page_offset = offset_in_page(address); vcpu->pio.rep = rep; + pio_dev = vcpu_find_pio_dev(vcpu, port); if (!string) { kvm_arch_ops->cache_regs(vcpu); memcpy(vcpu->pio_data, &vcpu->regs[VCPU_REGS_RAX], 4); kvm_arch_ops->decache_regs(vcpu); + if (pio_dev) { + kernel_pio(pio_dev, vcpu); + complete_pio(vcpu); + return 1; + } return 0; } + /* TODO: String I/O for in kernel device */ + if (pio_dev) + printk(KERN_ERR "kvm_setup_pio: no string io support\n"); if (!count) { kvm_arch_ops->skip_emulated_instruction(vcpu); @@ -2273,34 +2363,12 @@ static int create_vcpu_fd(struct kvm_vcpu *vcpu) struct inode *inode; struct file *file; + r = anon_inode_getfd(&fd, &inode, &file, + "kvm-vcpu", &kvm_vcpu_fops, vcpu); + if (r) + return r; atomic_inc(&vcpu->kvm->filp->f_count); - inode = kvmfs_inode(&kvm_vcpu_fops); - if (IS_ERR(inode)) { - r = PTR_ERR(inode); - goto out1; - } - - file = kvmfs_file(inode, vcpu); - if (IS_ERR(file)) { - r = PTR_ERR(file); - goto out2; - } - - r = get_unused_fd(); - if (r < 0) - goto out3; - fd = r; - fd_install(fd, file); - return fd; - -out3: - fput(file); -out2: - iput(inode); -out1: - fput(vcpu->kvm->filp); - return r; } /* @@ -2363,6 +2431,11 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n) if (r < 0) goto out_free_vcpus; + spin_lock(&kvm_lock); + if (n >= kvm->nvcpus) + kvm->nvcpus = n + 1; + spin_unlock(&kvm_lock); + return r; out_free_vcpus: @@ -2376,6 +2449,27 @@ out: return r; } +static void cpuid_fix_nx_cap(struct kvm_vcpu *vcpu) +{ + u64 efer; + int i; + struct kvm_cpuid_entry *e, *entry; + + rdmsrl(MSR_EFER, efer); + entry = NULL; + for (i = 0; i < vcpu->cpuid_nent; ++i) { + e = &vcpu->cpuid_entries[i]; + if (e->function == 0x80000001) { + entry = e; + break; + } + } + if (entry && (entry->edx & EFER_NX) && !(efer & EFER_NX)) { + entry->edx &= ~(1 << 20); + printk(KERN_INFO ": guest NX capability removed\n"); + } +} + static int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu, struct kvm_cpuid *cpuid, struct kvm_cpuid_entry __user *entries) @@ -2390,6 +2484,7 @@ static int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu, cpuid->nent * sizeof(struct kvm_cpuid_entry))) goto out; vcpu->cpuid_nent = cpuid->nent; + cpuid_fix_nx_cap(vcpu); return 0; out: @@ -2738,41 +2833,18 @@ static int kvm_dev_ioctl_create_vm(void) struct file *file; struct kvm *kvm; - inode = kvmfs_inode(&kvm_vm_fops); - if (IS_ERR(inode)) { - r = PTR_ERR(inode); - goto out1; - } - kvm = kvm_create_vm(); - if (IS_ERR(kvm)) { - r = PTR_ERR(kvm); - goto out2; + if (IS_ERR(kvm)) + return PTR_ERR(kvm); + r = anon_inode_getfd(&fd, &inode, &file, "kvm-vm", &kvm_vm_fops, kvm); + if (r) { + kvm_destroy_vm(kvm); + return r; } - file = kvmfs_file(inode, kvm); - if (IS_ERR(file)) { - r = PTR_ERR(file); - goto out3; - } kvm->filp = file; - r = get_unused_fd(); - if (r < 0) - goto out4; - fd = r; - fd_install(fd, file); - return fd; - -out4: - fput(file); -out3: - kvm_destroy_vm(kvm); -out2: - iput(inode); -out1: - return r; } static long kvm_dev_ioctl(struct file *filp, @@ -2862,7 +2934,7 @@ static int kvm_reboot(struct notifier_block *notifier, unsigned long val, * in vmx root mode. */ printk(KERN_INFO "kvm: exiting hardware virtualization\n"); - on_each_cpu(kvm_arch_ops->hardware_disable, NULL, 0, 1); + on_each_cpu(hardware_disable, NULL, 0, 1); } return NOTIFY_OK; } @@ -2905,33 +2977,88 @@ static void decache_vcpus_on_cpu(int cpu) spin_unlock(&kvm_lock); } +static void hardware_enable(void *junk) +{ + int cpu = raw_smp_processor_id(); + + if (cpu_isset(cpu, cpus_hardware_enabled)) + return; + cpu_set(cpu, cpus_hardware_enabled); + kvm_arch_ops->hardware_enable(NULL); +} + +static void hardware_disable(void *junk) +{ + int cpu = raw_smp_processor_id(); + + if (!cpu_isset(cpu, cpus_hardware_enabled)) + return; + cpu_clear(cpu, cpus_hardware_enabled); + decache_vcpus_on_cpu(cpu); + kvm_arch_ops->hardware_disable(NULL); +} + static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val, void *v) { int cpu = (long)v; switch (val) { - case CPU_DOWN_PREPARE: - case CPU_DOWN_PREPARE_FROZEN: + case CPU_DYING: + case CPU_DYING_FROZEN: case CPU_UP_CANCELED: case CPU_UP_CANCELED_FROZEN: printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n", cpu); - decache_vcpus_on_cpu(cpu); - smp_call_function_single(cpu, kvm_arch_ops->hardware_disable, - NULL, 0, 1); + smp_call_function_single(cpu, hardware_disable, NULL, 0, 1); break; case CPU_ONLINE: case CPU_ONLINE_FROZEN: printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n", cpu); - smp_call_function_single(cpu, kvm_arch_ops->hardware_enable, - NULL, 0, 1); + smp_call_function_single(cpu, hardware_enable, NULL, 0, 1); break; } return NOTIFY_OK; } +void kvm_io_bus_init(struct kvm_io_bus *bus) +{ + memset(bus, 0, sizeof(*bus)); +} + +void kvm_io_bus_destroy(struct kvm_io_bus *bus) +{ + int i; + + for (i = 0; i < bus->dev_count; i++) { + struct kvm_io_device *pos = bus->devs[i]; + + kvm_iodevice_destructor(pos); + } +} + +struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr) +{ + int i; + + for (i = 0; i < bus->dev_count; i++) { + struct kvm_io_device *pos = bus->devs[i]; + + if (pos->in_range(pos, addr)) + return pos; + } + + return NULL; +} + +void kvm_io_bus_register_dev(struct kvm_io_bus *bus, struct kvm_io_device *dev) +{ + BUG_ON(bus->dev_count > (NR_IOBUS_DEVS-1)); + + bus->devs[bus->dev_count++] = dev; +} + static struct notifier_block kvm_cpu_notifier = { .notifier_call = kvm_cpu_hotplug, .priority = 20, /* must be > scheduler priority */ @@ -2983,14 +3110,13 @@ static void kvm_exit_debug(void) static int kvm_suspend(struct sys_device *dev, pm_message_t state) { - decache_vcpus_on_cpu(raw_smp_processor_id()); - on_each_cpu(kvm_arch_ops->hardware_disable, NULL, 0, 1); + hardware_disable(NULL); return 0; } static int kvm_resume(struct sys_device *dev) { - on_each_cpu(kvm_arch_ops->hardware_enable, NULL, 0, 1); + hardware_enable(NULL); return 0; } @@ -3007,18 +3133,6 @@ static struct sys_device kvm_sysdev = { hpa_t bad_page_address; -static int kvmfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data, struct vfsmount *mnt) -{ - return get_sb_pseudo(fs_type, "kvm:", NULL, KVMFS_SUPER_MAGIC, mnt); -} - -static struct file_system_type kvm_fs_type = { - .name = "kvmfs", - .get_sb = kvmfs_get_sb, - .kill_sb = kill_anon_super, -}; - int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module) { int r; @@ -3043,7 +3157,7 @@ int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module) if (r < 0) goto out; - on_each_cpu(kvm_arch_ops->hardware_enable, NULL, 0, 1); + on_each_cpu(hardware_enable, NULL, 0, 1); r = register_cpu_notifier(&kvm_cpu_notifier); if (r) goto out_free_1; @@ -3075,7 +3189,7 @@ out_free_2: unregister_reboot_notifier(&kvm_reboot_notifier); unregister_cpu_notifier(&kvm_cpu_notifier); out_free_1: - on_each_cpu(kvm_arch_ops->hardware_disable, NULL, 0, 1); + on_each_cpu(hardware_disable, NULL, 0, 1); kvm_arch_ops->hardware_unsetup(); out: kvm_arch_ops = NULL; @@ -3089,7 +3203,7 @@ void kvm_exit_arch(void) sysdev_class_unregister(&kvm_sysdev_class); unregister_reboot_notifier(&kvm_reboot_notifier); unregister_cpu_notifier(&kvm_cpu_notifier); - on_each_cpu(kvm_arch_ops->hardware_disable, NULL, 0, 1); + on_each_cpu(hardware_disable, NULL, 0, 1); kvm_arch_ops->hardware_unsetup(); kvm_arch_ops = NULL; } @@ -3103,14 +3217,6 @@ static __init int kvm_init(void) if (r) goto out4; - r = register_filesystem(&kvm_fs_type); - if (r) - goto out3; - - kvmfs_mnt = kern_mount(&kvm_fs_type); - r = PTR_ERR(kvmfs_mnt); - if (IS_ERR(kvmfs_mnt)) - goto out2; kvm_init_debug(); kvm_init_msr_list(); @@ -3127,10 +3233,6 @@ static __init int kvm_init(void) out: kvm_exit_debug(); - mntput(kvmfs_mnt); -out2: - unregister_filesystem(&kvm_fs_type); -out3: kvm_mmu_module_exit(); out4: return r; @@ -3140,8 +3242,6 @@ static __exit void kvm_exit(void) { kvm_exit_debug(); __free_page(pfn_to_page(bad_page_address >> PAGE_SHIFT)); - mntput(kvmfs_mnt); - unregister_filesystem(&kvm_fs_type); kvm_mmu_module_exit(); } diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index e8e228118de9..b297a6b111ac 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -16,15 +16,18 @@ * the COPYING file in the top-level directory. * */ + +#include "vmx.h" +#include "kvm.h" + #include <linux/types.h> #include <linux/string.h> -#include <asm/page.h> #include <linux/mm.h> #include <linux/highmem.h> #include <linux/module.h> -#include "vmx.h" -#include "kvm.h" +#include <asm/page.h> +#include <asm/cmpxchg.h> #undef MMU_DEBUG @@ -90,25 +93,11 @@ static int dbg = 1; #define PT32_DIR_PSE36_MASK (((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT) -#define PT32_PTE_COPY_MASK \ - (PT_PRESENT_MASK | PT_ACCESSED_MASK | PT_DIRTY_MASK | PT_GLOBAL_MASK) - -#define PT64_PTE_COPY_MASK (PT64_NX_MASK | PT32_PTE_COPY_MASK) - #define PT_FIRST_AVAIL_BITS_SHIFT 9 #define PT64_SECOND_AVAIL_BITS_SHIFT 52 -#define PT_SHADOW_PS_MARK (1ULL << PT_FIRST_AVAIL_BITS_SHIFT) #define PT_SHADOW_IO_MARK (1ULL << PT_FIRST_AVAIL_BITS_SHIFT) -#define PT_SHADOW_WRITABLE_SHIFT (PT_FIRST_AVAIL_BITS_SHIFT + 1) -#define PT_SHADOW_WRITABLE_MASK (1ULL << PT_SHADOW_WRITABLE_SHIFT) - -#define PT_SHADOW_USER_SHIFT (PT_SHADOW_WRITABLE_SHIFT + 1) -#define PT_SHADOW_USER_MASK (1ULL << (PT_SHADOW_USER_SHIFT)) - -#define PT_SHADOW_BITS_OFFSET (PT_SHADOW_WRITABLE_SHIFT - PT_WRITABLE_SHIFT) - #define VALID_PAGE(x) ((x) != INVALID_PAGE) #define PT64_LEVEL_BITS 9 @@ -165,6 +154,8 @@ struct kvm_rmap_desc { static struct kmem_cache *pte_chain_cache; static struct kmem_cache *rmap_desc_cache; +static struct kmem_cache *mmu_page_cache; +static struct kmem_cache *mmu_page_header_cache; static int is_write_protection(struct kvm_vcpu *vcpu) { @@ -202,6 +193,15 @@ static int is_rmap_pte(u64 pte) == (PT_WRITABLE_MASK | PT_PRESENT_MASK); } +static void set_shadow_pte(u64 *sptep, u64 spte) +{ +#ifdef CONFIG_X86_64 + set_64bit((unsigned long *)sptep, spte); +#else + set_64bit((unsigned long long *)sptep, spte); +#endif +} + static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache, struct kmem_cache *base_cache, int min, gfp_t gfp_flags) @@ -235,6 +235,14 @@ static int __mmu_topup_memory_caches(struct kvm_vcpu *vcpu, gfp_t gfp_flags) goto out; r = mmu_topup_memory_cache(&vcpu->mmu_rmap_desc_cache, rmap_desc_cache, 1, gfp_flags); + if (r) + goto out; + r = mmu_topup_memory_cache(&vcpu->mmu_page_cache, + mmu_page_cache, 4, gfp_flags); + if (r) + goto out; + r = mmu_topup_memory_cache(&vcpu->mmu_page_header_cache, + mmu_page_header_cache, 4, gfp_flags); out: return r; } @@ -258,6 +266,8 @@ static void mmu_free_memory_caches(struct kvm_vcpu *vcpu) { mmu_free_memory_cache(&vcpu->mmu_pte_chain_cache); mmu_free_memory_cache(&vcpu->mmu_rmap_desc_cache); + mmu_free_memory_cache(&vcpu->mmu_page_cache); + mmu_free_memory_cache(&vcpu->mmu_page_header_cache); } static void *mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc, @@ -433,19 +443,18 @@ static void rmap_write_protect(struct kvm_vcpu *vcpu, u64 gfn) BUG_ON(!(*spte & PT_WRITABLE_MASK)); rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte); rmap_remove(vcpu, spte); - kvm_arch_ops->tlb_flush(vcpu); - *spte &= ~(u64)PT_WRITABLE_MASK; + set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK); + kvm_flush_remote_tlbs(vcpu->kvm); } } #ifdef MMU_DEBUG -static int is_empty_shadow_page(hpa_t page_hpa) +static int is_empty_shadow_page(u64 *spt) { u64 *pos; u64 *end; - for (pos = __va(page_hpa), end = pos + PAGE_SIZE / sizeof(u64); - pos != end; pos++) + for (pos = spt, end = pos + PAGE_SIZE / sizeof(u64); pos != end; pos++) if (*pos != 0) { printk(KERN_ERR "%s: %p %llx\n", __FUNCTION__, pos, *pos); @@ -455,13 +464,13 @@ static int is_empty_shadow_page(hpa_t page_hpa) } #endif -static void kvm_mmu_free_page(struct kvm_vcpu *vcpu, hpa_t page_hpa) +static void kvm_mmu_free_page(struct kvm_vcpu *vcpu, + struct kvm_mmu_page *page_head) { - struct kvm_mmu_page *page_head = page_header(page_hpa); - - ASSERT(is_empty_shadow_page(page_hpa)); - page_head->page_hpa = page_hpa; - list_move(&page_head->link, &vcpu->free_pages); + ASSERT(is_empty_shadow_page(page_head->spt)); + list_del(&page_head->link); + mmu_memory_cache_free(&vcpu->mmu_page_cache, page_head->spt); + mmu_memory_cache_free(&vcpu->mmu_page_header_cache, page_head); ++vcpu->kvm->n_free_mmu_pages; } @@ -475,12 +484,15 @@ static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu, { struct kvm_mmu_page *page; - if (list_empty(&vcpu->free_pages)) + if (!vcpu->kvm->n_free_mmu_pages) return NULL; - page = list_entry(vcpu->free_pages.next, struct kvm_mmu_page, link); - list_move(&page->link, &vcpu->kvm->active_mmu_pages); - ASSERT(is_empty_shadow_page(page->page_hpa)); + page = mmu_memory_cache_alloc(&vcpu->mmu_page_header_cache, + sizeof *page); + page->spt = mmu_memory_cache_alloc(&vcpu->mmu_page_cache, PAGE_SIZE); + set_page_private(virt_to_page(page->spt), (unsigned long)page); + list_add(&page->link, &vcpu->kvm->active_mmu_pages); + ASSERT(is_empty_shadow_page(page->spt)); page->slot_bitmap = 0; page->multimapped = 0; page->parent_pte = parent_pte; @@ -638,7 +650,7 @@ static void kvm_mmu_page_unlink_children(struct kvm_vcpu *vcpu, u64 *pt; u64 ent; - pt = __va(page->page_hpa); + pt = page->spt; if (page->role.level == PT_PAGE_TABLE_LEVEL) { for (i = 0; i < PT64_ENT_PER_PAGE; ++i) { @@ -646,7 +658,7 @@ static void kvm_mmu_page_unlink_children(struct kvm_vcpu *vcpu, rmap_remove(vcpu, &pt[i]); pt[i] = 0; } - kvm_arch_ops->tlb_flush(vcpu); + kvm_flush_remote_tlbs(vcpu->kvm); return; } @@ -659,6 +671,7 @@ static void kvm_mmu_page_unlink_children(struct kvm_vcpu *vcpu, ent &= PT64_BASE_ADDR_MASK; mmu_page_remove_parent_pte(vcpu, page_header(ent), &pt[i]); } + kvm_flush_remote_tlbs(vcpu->kvm); } static void kvm_mmu_put_page(struct kvm_vcpu *vcpu, @@ -685,12 +698,12 @@ static void kvm_mmu_zap_page(struct kvm_vcpu *vcpu, } BUG_ON(!parent_pte); kvm_mmu_put_page(vcpu, page, parent_pte); - *parent_pte = 0; + set_shadow_pte(parent_pte, 0); } kvm_mmu_page_unlink_children(vcpu, page); if (!page->root_count) { hlist_del(&page->hash_link); - kvm_mmu_free_page(vcpu, page->page_hpa); + kvm_mmu_free_page(vcpu, page); } else list_move(&page->link, &vcpu->kvm->active_mmu_pages); } @@ -717,6 +730,17 @@ static int kvm_mmu_unprotect_page(struct kvm_vcpu *vcpu, gfn_t gfn) return r; } +static void mmu_unshadow(struct kvm_vcpu *vcpu, gfn_t gfn) +{ + struct kvm_mmu_page *page; + + while ((page = kvm_mmu_lookup_page(vcpu, gfn)) != NULL) { + pgprintk("%s: zap %lx %x\n", + __FUNCTION__, gfn, page->role.word); + kvm_mmu_zap_page(vcpu, page); + } +} + static void page_header_update_slot(struct kvm *kvm, void *pte, gpa_t gpa) { int slot = memslot_id(kvm, gfn_to_memslot(kvm, gpa >> PAGE_SHIFT)); @@ -805,7 +829,7 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, hpa_t p) return -ENOMEM; } - table[index] = new_table->page_hpa | PT_PRESENT_MASK + table[index] = __pa(new_table->spt) | PT_PRESENT_MASK | PT_WRITABLE_MASK | PT_USER_MASK; } table_addr = table[index] & PT64_BASE_ADDR_MASK; @@ -817,11 +841,12 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu) int i; struct kvm_mmu_page *page; + if (!VALID_PAGE(vcpu->mmu.root_hpa)) + return; #ifdef CONFIG_X86_64 if (vcpu->mmu.shadow_root_level == PT64_ROOT_LEVEL) { hpa_t root = vcpu->mmu.root_hpa; - ASSERT(VALID_PAGE(root)); page = page_header(root); --page->root_count; vcpu->mmu.root_hpa = INVALID_PAGE; @@ -832,7 +857,6 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu) hpa_t root = vcpu->mmu.pae_root[i]; if (root) { - ASSERT(VALID_PAGE(root)); root &= PT64_BASE_ADDR_MASK; page = page_header(root); --page->root_count; @@ -857,7 +881,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu) ASSERT(!VALID_PAGE(root)); page = kvm_mmu_get_page(vcpu, root_gfn, 0, PT64_ROOT_LEVEL, 0, 0, NULL); - root = page->page_hpa; + root = __pa(page->spt); ++page->root_count; vcpu->mmu.root_hpa = root; return; @@ -878,7 +902,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu) page = kvm_mmu_get_page(vcpu, root_gfn, i << 30, PT32_ROOT_LEVEL, !is_paging(vcpu), 0, NULL); - root = page->page_hpa; + root = __pa(page->spt); ++page->root_count; vcpu->mmu.pae_root[i] = root | PT_PRESENT_MASK; } @@ -928,9 +952,7 @@ static int nonpaging_init_context(struct kvm_vcpu *vcpu) context->free = nonpaging_free; context->root_level = 0; context->shadow_root_level = PT32E_ROOT_LEVEL; - mmu_alloc_roots(vcpu); - ASSERT(VALID_PAGE(context->root_hpa)); - kvm_arch_ops->set_cr3(vcpu, context->root_hpa); + context->root_hpa = INVALID_PAGE; return 0; } @@ -944,59 +966,6 @@ static void paging_new_cr3(struct kvm_vcpu *vcpu) { pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3); mmu_free_roots(vcpu); - if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) - kvm_mmu_free_some_pages(vcpu); - mmu_alloc_roots(vcpu); - kvm_mmu_flush_tlb(vcpu); - kvm_arch_ops->set_cr3(vcpu, vcpu->mmu.root_hpa); -} - -static inline void set_pte_common(struct kvm_vcpu *vcpu, - u64 *shadow_pte, - gpa_t gaddr, - int dirty, - u64 access_bits, - gfn_t gfn) -{ - hpa_t paddr; - - *shadow_pte |= access_bits << PT_SHADOW_BITS_OFFSET; - if (!dirty) - access_bits &= ~PT_WRITABLE_MASK; - - paddr = gpa_to_hpa(vcpu, gaddr & PT64_BASE_ADDR_MASK); - - *shadow_pte |= access_bits; - - if (is_error_hpa(paddr)) { - *shadow_pte |= gaddr; - *shadow_pte |= PT_SHADOW_IO_MARK; - *shadow_pte &= ~PT_PRESENT_MASK; - return; - } - - *shadow_pte |= paddr; - - if (access_bits & PT_WRITABLE_MASK) { - struct kvm_mmu_page *shadow; - - shadow = kvm_mmu_lookup_page(vcpu, gfn); - if (shadow) { - pgprintk("%s: found shadow page for %lx, marking ro\n", - __FUNCTION__, gfn); - access_bits &= ~PT_WRITABLE_MASK; - if (is_writeble_pte(*shadow_pte)) { - *shadow_pte &= ~PT_WRITABLE_MASK; - kvm_arch_ops->tlb_flush(vcpu); - } - } - } - - if (access_bits & PT_WRITABLE_MASK) - mark_page_dirty(vcpu->kvm, gaddr >> PAGE_SHIFT); - - page_header_update_slot(vcpu->kvm, shadow_pte, gaddr); - rmap_add(vcpu, shadow_pte); } static void inject_page_fault(struct kvm_vcpu *vcpu, @@ -1006,23 +975,6 @@ static void inject_page_fault(struct kvm_vcpu *vcpu, kvm_arch_ops->inject_page_fault(vcpu, addr, err_code); } -static inline int fix_read_pf(u64 *shadow_ent) -{ - if ((*shadow_ent & PT_SHADOW_USER_MASK) && - !(*shadow_ent & PT_USER_MASK)) { - /* - * If supervisor write protect is disabled, we shadow kernel - * pages as user pages so we can trap the write access. - */ - *shadow_ent |= PT_USER_MASK; - *shadow_ent &= ~PT_WRITABLE_MASK; - - return 1; - - } - return 0; -} - static void paging_free(struct kvm_vcpu *vcpu) { nonpaging_free(vcpu); @@ -1047,10 +999,7 @@ static int paging64_init_context_common(struct kvm_vcpu *vcpu, int level) context->free = paging_free; context->root_level = level; context->shadow_root_level = level; - mmu_alloc_roots(vcpu); - ASSERT(VALID_PAGE(context->root_hpa)); - kvm_arch_ops->set_cr3(vcpu, context->root_hpa | - (vcpu->cr3 & (CR3_PCD_MASK | CR3_WPT_MASK))); + context->root_hpa = INVALID_PAGE; return 0; } @@ -1069,10 +1018,7 @@ static int paging32_init_context(struct kvm_vcpu *vcpu) context->free = paging_free; context->root_level = PT32_ROOT_LEVEL; context->shadow_root_level = PT32E_ROOT_LEVEL; - mmu_alloc_roots(vcpu); - ASSERT(VALID_PAGE(context->root_hpa)); - kvm_arch_ops->set_cr3(vcpu, context->root_hpa | - (vcpu->cr3 & (CR3_PCD_MASK | CR3_WPT_MASK))); + context->root_hpa = INVALID_PAGE; return 0; } @@ -1107,18 +1053,33 @@ static void destroy_kvm_mmu(struct kvm_vcpu *vcpu) int kvm_mmu_reset_context(struct kvm_vcpu *vcpu) { + destroy_kvm_mmu(vcpu); + return init_kvm_mmu(vcpu); +} + +int kvm_mmu_load(struct kvm_vcpu *vcpu) +{ int r; - destroy_kvm_mmu(vcpu); - r = init_kvm_mmu(vcpu); - if (r < 0) - goto out; + spin_lock(&vcpu->kvm->lock); r = mmu_topup_memory_caches(vcpu); + if (r) + goto out; + mmu_alloc_roots(vcpu); + kvm_arch_ops->set_cr3(vcpu, vcpu->mmu.root_hpa); + kvm_mmu_flush_tlb(vcpu); out: + spin_unlock(&vcpu->kvm->lock); return r; } +EXPORT_SYMBOL_GPL(kvm_mmu_load); + +void kvm_mmu_unload(struct kvm_vcpu *vcpu) +{ + mmu_free_roots(vcpu); +} -static void mmu_pre_write_zap_pte(struct kvm_vcpu *vcpu, +static void mmu_pte_write_zap_pte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page, u64 *spte) { @@ -1135,9 +1096,25 @@ static void mmu_pre_write_zap_pte(struct kvm_vcpu *vcpu, } } *spte = 0; + kvm_flush_remote_tlbs(vcpu->kvm); +} + +static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu, + struct kvm_mmu_page *page, + u64 *spte, + const void *new, int bytes) +{ + if (page->role.level != PT_PAGE_TABLE_LEVEL) + return; + + if (page->role.glevels == PT32_ROOT_LEVEL) + paging32_update_pte(vcpu, page, spte, new, bytes); + else + paging64_update_pte(vcpu, page, spte, new, bytes); } -void kvm_mmu_pre_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes) +void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, + const u8 *old, const u8 *new, int bytes) { gfn_t gfn = gpa >> PAGE_SHIFT; struct kvm_mmu_page *page; @@ -1149,6 +1126,7 @@ void kvm_mmu_pre_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes) unsigned pte_size; unsigned page_offset; unsigned misaligned; + unsigned quadrant; int level; int flooded = 0; int npte; @@ -1169,6 +1147,7 @@ void kvm_mmu_pre_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes) continue; pte_size = page->role.glevels == PT32_ROOT_LEVEL ? 4 : 8; misaligned = (offset ^ (offset + bytes - 1)) & ~(pte_size - 1); + misaligned |= bytes < 4; if (misaligned || flooded) { /* * Misaligned accesses are too much trouble to fix @@ -1200,21 +1179,20 @@ void kvm_mmu_pre_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes) page_offset <<= 1; npte = 2; } + quadrant = page_offset >> PAGE_SHIFT; page_offset &= ~PAGE_MASK; + if (quadrant != page->role.quadrant) + continue; } - spte = __va(page->page_hpa); - spte += page_offset / sizeof(*spte); + spte = &page->spt[page_offset / sizeof(*spte)]; while (npte--) { - mmu_pre_write_zap_pte(vcpu, page, spte); + mmu_pte_write_zap_pte(vcpu, page, spte); + mmu_pte_write_new_pte(vcpu, page, spte, new, bytes); ++spte; } } } -void kvm_mmu_post_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes) -{ -} - int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva) { gpa_t gpa = vcpu->mmu.gva_to_gpa(vcpu, gva); @@ -1243,13 +1221,6 @@ static void free_mmu_pages(struct kvm_vcpu *vcpu) struct kvm_mmu_page, link); kvm_mmu_zap_page(vcpu, page); } - while (!list_empty(&vcpu->free_pages)) { - page = list_entry(vcpu->free_pages.next, - struct kvm_mmu_page, link); - list_del(&page->link); - __free_page(pfn_to_page(page->page_hpa >> PAGE_SHIFT)); - page->page_hpa = INVALID_PAGE; - } free_page((unsigned long)vcpu->mmu.pae_root); } @@ -1260,18 +1231,7 @@ static int alloc_mmu_pages(struct kvm_vcpu *vcpu) ASSERT(vcpu); - for (i = 0; i < KVM_NUM_MMU_PAGES; i++) { - struct kvm_mmu_page *page_header = &vcpu->page_header_buf[i]; - - INIT_LIST_HEAD(&page_header->link); - if ((page = alloc_page(GFP_KERNEL)) == NULL) - goto error_1; - set_page_private(page, (unsigned long)page_header); - page_header->page_hpa = (hpa_t)page_to_pfn(page) << PAGE_SHIFT; - memset(__va(page_header->page_hpa), 0, PAGE_SIZE); - list_add(&page_header->link, &vcpu->free_pages); - ++vcpu->kvm->n_free_mmu_pages; - } + vcpu->kvm->n_free_mmu_pages = KVM_NUM_MMU_PAGES; /* * When emulating 32-bit mode, cr3 is only 32 bits even on x86_64. @@ -1296,7 +1256,6 @@ int kvm_mmu_create(struct kvm_vcpu *vcpu) { ASSERT(vcpu); ASSERT(!VALID_PAGE(vcpu->mmu.root_hpa)); - ASSERT(list_empty(&vcpu->free_pages)); return alloc_mmu_pages(vcpu); } @@ -1305,7 +1264,6 @@ int kvm_mmu_setup(struct kvm_vcpu *vcpu) { ASSERT(vcpu); ASSERT(!VALID_PAGE(vcpu->mmu.root_hpa)); - ASSERT(!list_empty(&vcpu->free_pages)); return init_kvm_mmu(vcpu); } @@ -1331,7 +1289,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm_vcpu *vcpu, int slot) if (!test_bit(slot, &page->slot_bitmap)) continue; - pt = __va(page->page_hpa); + pt = page->spt; for (i = 0; i < PT64_ENT_PER_PAGE; ++i) /* avoid RMW */ if (pt[i] & PT_WRITABLE_MASK) { @@ -1354,7 +1312,7 @@ void kvm_mmu_zap_all(struct kvm_vcpu *vcpu) } mmu_free_memory_caches(vcpu); - kvm_arch_ops->tlb_flush(vcpu); + kvm_flush_remote_tlbs(vcpu->kvm); init_kvm_mmu(vcpu); } @@ -1364,6 +1322,10 @@ void kvm_mmu_module_exit(void) kmem_cache_destroy(pte_chain_cache); if (rmap_desc_cache) kmem_cache_destroy(rmap_desc_cache); + if (mmu_page_cache) + kmem_cache_destroy(mmu_page_cache); + if (mmu_page_header_cache) + kmem_cache_destroy(mmu_page_header_cache); } int kvm_mmu_module_init(void) @@ -1379,6 +1341,18 @@ int kvm_mmu_module_init(void) if (!rmap_desc_cache) goto nomem; + mmu_page_cache = kmem_cache_create("kvm_mmu_page", + PAGE_SIZE, + PAGE_SIZE, 0, NULL, NULL); + if (!mmu_page_cache) + goto nomem; + + mmu_page_header_cache = kmem_cache_create("kvm_mmu_page_header", + sizeof(struct kvm_mmu_page), + 0, 0, NULL, NULL); + if (!mmu_page_header_cache) + goto nomem; + return 0; nomem: @@ -1482,7 +1456,7 @@ static int count_writable_mappings(struct kvm_vcpu *vcpu) int i; list_for_each_entry(page, &vcpu->kvm->active_mmu_pages, link) { - u64 *pt = __va(page->page_hpa); + u64 *pt = page->spt; if (page->role.level != PT_PAGE_TABLE_LEVEL) continue; diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h index 73ffbffb1097..a7c5cb0319ea 100644 --- a/drivers/kvm/paging_tmpl.h +++ b/drivers/kvm/paging_tmpl.h @@ -31,7 +31,6 @@ #define PT_INDEX(addr, level) PT64_INDEX(addr, level) #define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level) #define PT_LEVEL_MASK(level) PT64_LEVEL_MASK(level) - #define PT_PTE_COPY_MASK PT64_PTE_COPY_MASK #ifdef CONFIG_X86_64 #define PT_MAX_FULL_LEVELS 4 #else @@ -46,7 +45,6 @@ #define PT_INDEX(addr, level) PT32_INDEX(addr, level) #define SHADOW_PT_INDEX(addr, level) PT64_INDEX(addr, level) #define PT_LEVEL_MASK(level) PT32_LEVEL_MASK(level) - #define PT_PTE_COPY_MASK PT32_PTE_COPY_MASK #define PT_MAX_FULL_LEVELS 2 #else #error Invalid PTTYPE value @@ -192,40 +190,143 @@ static void FNAME(mark_pagetable_dirty)(struct kvm *kvm, mark_page_dirty(kvm, walker->table_gfn[walker->level - 1]); } -static void FNAME(set_pte)(struct kvm_vcpu *vcpu, u64 guest_pte, - u64 *shadow_pte, u64 access_bits, gfn_t gfn) +static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu, + u64 *shadow_pte, + gpa_t gaddr, + pt_element_t *gpte, + u64 access_bits, + int user_fault, + int write_fault, + int *ptwrite, + struct guest_walker *walker, + gfn_t gfn) { - ASSERT(*shadow_pte == 0); - access_bits &= guest_pte; - *shadow_pte = (guest_pte & PT_PTE_COPY_MASK); - set_pte_common(vcpu, shadow_pte, guest_pte & PT_BASE_ADDR_MASK, - guest_pte & PT_DIRTY_MASK, access_bits, gfn); + hpa_t paddr; + int dirty = *gpte & PT_DIRTY_MASK; + u64 spte = *shadow_pte; + int was_rmapped = is_rmap_pte(spte); + + pgprintk("%s: spte %llx gpte %llx access %llx write_fault %d" + " user_fault %d gfn %lx\n", + __FUNCTION__, spte, (u64)*gpte, access_bits, + write_fault, user_fault, gfn); + + if (write_fault && !dirty) { + *gpte |= PT_DIRTY_MASK; + dirty = 1; + FNAME(mark_pagetable_dirty)(vcpu->kvm, walker); + } + + spte |= PT_PRESENT_MASK | PT_ACCESSED_MASK | PT_DIRTY_MASK; + spte |= *gpte & PT64_NX_MASK; + if (!dirty) + access_bits &= ~PT_WRITABLE_MASK; + + paddr = gpa_to_hpa(vcpu, gaddr & PT64_BASE_ADDR_MASK); + + spte |= PT_PRESENT_MASK; + if (access_bits & PT_USER_MASK) + spte |= PT_USER_MASK; + + if (is_error_hpa(paddr)) { + spte |= gaddr; + spte |= PT_SHADOW_IO_MARK; + spte &= ~PT_PRESENT_MASK; + set_shadow_pte(shadow_pte, spte); + return; + } + + spte |= paddr; + + if ((access_bits & PT_WRITABLE_MASK) + || (write_fault && !is_write_protection(vcpu) && !user_fault)) { + struct kvm_mmu_page *shadow; + + spte |= PT_WRITABLE_MASK; + if (user_fault) { + mmu_unshadow(vcpu, gfn); + goto unshadowed; + } + + shadow = kvm_mmu_lookup_page(vcpu, gfn); + if (shadow) { + pgprintk("%s: found shadow page for %lx, marking ro\n", + __FUNCTION__, gfn); + access_bits &= ~PT_WRITABLE_MASK; + if (is_writeble_pte(spte)) { + spte &= ~PT_WRITABLE_MASK; + kvm_arch_ops->tlb_flush(vcpu); + } + if (write_fault) + *ptwrite = 1; + } + } + +unshadowed: + + if (access_bits & PT_WRITABLE_MASK) + mark_page_dirty(vcpu->kvm, gaddr >> PAGE_SHIFT); + + set_shadow_pte(shadow_pte, spte); + page_header_update_slot(vcpu->kvm, shadow_pte, gaddr); + if (!was_rmapped) + rmap_add(vcpu, shadow_pte); } -static void FNAME(set_pde)(struct kvm_vcpu *vcpu, u64 guest_pde, - u64 *shadow_pte, u64 access_bits, gfn_t gfn) +static void FNAME(set_pte)(struct kvm_vcpu *vcpu, pt_element_t *gpte, + u64 *shadow_pte, u64 access_bits, + int user_fault, int write_fault, int *ptwrite, + struct guest_walker *walker, gfn_t gfn) +{ + access_bits &= *gpte; + FNAME(set_pte_common)(vcpu, shadow_pte, *gpte & PT_BASE_ADDR_MASK, + gpte, access_bits, user_fault, write_fault, + ptwrite, walker, gfn); +} + +static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page, + u64 *spte, const void *pte, int bytes) +{ + pt_element_t gpte; + + if (bytes < sizeof(pt_element_t)) + return; + gpte = *(const pt_element_t *)pte; + if (~gpte & (PT_PRESENT_MASK | PT_ACCESSED_MASK)) + return; + pgprintk("%s: gpte %llx spte %p\n", __FUNCTION__, (u64)gpte, spte); + FNAME(set_pte)(vcpu, &gpte, spte, PT_USER_MASK | PT_WRITABLE_MASK, 0, + 0, NULL, NULL, + (gpte & PT_BASE_ADDR_MASK) >> PAGE_SHIFT); +} + +static void FNAME(set_pde)(struct kvm_vcpu *vcpu, pt_element_t *gpde, + u64 *shadow_pte, u64 access_bits, + int user_fault, int write_fault, int *ptwrite, + struct guest_walker *walker, gfn_t gfn) { gpa_t gaddr; - ASSERT(*shadow_pte == 0); - access_bits &= guest_pde; + access_bits &= *gpde; gaddr = (gpa_t)gfn << PAGE_SHIFT; if (PTTYPE == 32 && is_cpuid_PSE36()) - gaddr |= (guest_pde & PT32_DIR_PSE36_MASK) << + gaddr |= (*gpde & PT32_DIR_PSE36_MASK) << (32 - PT32_DIR_PSE36_SHIFT); - *shadow_pte = guest_pde & PT_PTE_COPY_MASK; - set_pte_common(vcpu, shadow_pte, gaddr, - guest_pde & PT_DIRTY_MASK, access_bits, gfn); + FNAME(set_pte_common)(vcpu, shadow_pte, gaddr, + gpde, access_bits, user_fault, write_fault, + ptwrite, walker, gfn); } /* * Fetch a shadow pte for a specific level in the paging hierarchy. */ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, - struct guest_walker *walker) + struct guest_walker *walker, + int user_fault, int write_fault, int *ptwrite) { hpa_t shadow_addr; int level; + u64 *shadow_ent; u64 *prev_shadow_ent = NULL; pt_element_t *guest_ent = walker->ptep; @@ -242,37 +343,23 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, for (; ; level--) { u32 index = SHADOW_PT_INDEX(addr, level); - u64 *shadow_ent = ((u64 *)__va(shadow_addr)) + index; struct kvm_mmu_page *shadow_page; u64 shadow_pte; int metaphysical; gfn_t table_gfn; unsigned hugepage_access = 0; + shadow_ent = ((u64 *)__va(shadow_addr)) + index; if (is_present_pte(*shadow_ent) || is_io_pte(*shadow_ent)) { if (level == PT_PAGE_TABLE_LEVEL) - return shadow_ent; + break; shadow_addr = *shadow_ent & PT64_BASE_ADDR_MASK; prev_shadow_ent = shadow_ent; continue; } - if (level == PT_PAGE_TABLE_LEVEL) { - - if (walker->level == PT_DIRECTORY_LEVEL) { - if (prev_shadow_ent) - *prev_shadow_ent |= PT_SHADOW_PS_MARK; - FNAME(set_pde)(vcpu, *guest_ent, shadow_ent, - walker->inherited_ar, - walker->gfn); - } else { - ASSERT(walker->level == PT_PAGE_TABLE_LEVEL); - FNAME(set_pte)(vcpu, *guest_ent, shadow_ent, - walker->inherited_ar, - walker->gfn); - } - return shadow_ent; - } + if (level == PT_PAGE_TABLE_LEVEL) + break; if (level - 1 == PT_PAGE_TABLE_LEVEL && walker->level == PT_DIRECTORY_LEVEL) { @@ -289,90 +376,24 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr, shadow_page = kvm_mmu_get_page(vcpu, table_gfn, addr, level-1, metaphysical, hugepage_access, shadow_ent); - shadow_addr = shadow_page->page_hpa; + shadow_addr = __pa(shadow_page->spt); shadow_pte = shadow_addr | PT_PRESENT_MASK | PT_ACCESSED_MASK | PT_WRITABLE_MASK | PT_USER_MASK; *shadow_ent = shadow_pte; prev_shadow_ent = shadow_ent; } -} -/* - * The guest faulted for write. We need to - * - * - check write permissions - * - update the guest pte dirty bit - * - update our own dirty page tracking structures - */ -static int FNAME(fix_write_pf)(struct kvm_vcpu *vcpu, - u64 *shadow_ent, - struct guest_walker *walker, - gva_t addr, - int user, - int *write_pt) -{ - pt_element_t *guest_ent; - int writable_shadow; - gfn_t gfn; - struct kvm_mmu_page *page; - - if (is_writeble_pte(*shadow_ent)) - return !user || (*shadow_ent & PT_USER_MASK); - - writable_shadow = *shadow_ent & PT_SHADOW_WRITABLE_MASK; - if (user) { - /* - * User mode access. Fail if it's a kernel page or a read-only - * page. - */ - if (!(*shadow_ent & PT_SHADOW_USER_MASK) || !writable_shadow) - return 0; - ASSERT(*shadow_ent & PT_USER_MASK); - } else - /* - * Kernel mode access. Fail if it's a read-only page and - * supervisor write protection is enabled. - */ - if (!writable_shadow) { - if (is_write_protection(vcpu)) - return 0; - *shadow_ent &= ~PT_USER_MASK; - } - - guest_ent = walker->ptep; - - if (!is_present_pte(*guest_ent)) { - *shadow_ent = 0; - return 0; + if (walker->level == PT_DIRECTORY_LEVEL) { + FNAME(set_pde)(vcpu, guest_ent, shadow_ent, + walker->inherited_ar, user_fault, write_fault, + ptwrite, walker, walker->gfn); + } else { + ASSERT(walker->level == PT_PAGE_TABLE_LEVEL); + FNAME(set_pte)(vcpu, guest_ent, shadow_ent, + walker->inherited_ar, user_fault, write_fault, + ptwrite, walker, walker->gfn); } - - gfn = walker->gfn; - - if (user) { - /* - * Usermode page faults won't be for page table updates. - */ - while ((page = kvm_mmu_lookup_page(vcpu, gfn)) != NULL) { - pgprintk("%s: zap %lx %x\n", - __FUNCTION__, gfn, page->role.word); - kvm_mmu_zap_page(vcpu, page); - } - } else if (kvm_mmu_lookup_page(vcpu, gfn)) { - pgprintk("%s: found shadow page for %lx, marking ro\n", - __FUNCTION__, gfn); - mark_page_dirty(vcpu->kvm, gfn); - FNAME(mark_pagetable_dirty)(vcpu->kvm, walker); - *guest_ent |= PT_DIRTY_MASK; - *write_pt = 1; - return 0; - } - mark_page_dirty(vcpu->kvm, gfn); - *shadow_ent |= PT_WRITABLE_MASK; - FNAME(mark_pagetable_dirty)(vcpu->kvm, walker); - *guest_ent |= PT_DIRTY_MASK; - rmap_add(vcpu, shadow_ent); - - return 1; + return shadow_ent; } /* @@ -397,7 +418,6 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, int fetch_fault = error_code & PFERR_FETCH_MASK; struct guest_walker walker; u64 *shadow_pte; - int fixed; int write_pt = 0; int r; @@ -421,27 +441,20 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, pgprintk("%s: guest page fault\n", __FUNCTION__); inject_page_fault(vcpu, addr, walker.error_code); FNAME(release_walker)(&walker); + vcpu->last_pt_write_count = 0; /* reset fork detector */ return 0; } - shadow_pte = FNAME(fetch)(vcpu, addr, &walker); - pgprintk("%s: shadow pte %p %llx\n", __FUNCTION__, - shadow_pte, *shadow_pte); - - /* - * Update the shadow pte. - */ - if (write_fault) - fixed = FNAME(fix_write_pf)(vcpu, shadow_pte, &walker, addr, - user_fault, &write_pt); - else - fixed = fix_read_pf(shadow_pte); - - pgprintk("%s: updated shadow pte %p %llx\n", __FUNCTION__, - shadow_pte, *shadow_pte); + shadow_pte = FNAME(fetch)(vcpu, addr, &walker, user_fault, write_fault, + &write_pt); + pgprintk("%s: shadow pte %p %llx ptwrite %d\n", __FUNCTION__, + shadow_pte, *shadow_pte, write_pt); FNAME(release_walker)(&walker); + if (!write_pt) + vcpu->last_pt_write_count = 0; /* reset fork detector */ + /* * mmio: emulate if accessible, otherwise its a guest fault. */ @@ -478,7 +491,5 @@ static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr) #undef PT_INDEX #undef SHADOW_PT_INDEX #undef PT_LEVEL_MASK -#undef PT_PTE_COPY_MASK -#undef PT_NON_PTE_COPY_MASK #undef PT_DIR_BASE_ADDR_MASK #undef PT_MAX_FULL_LEVELS diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index fa17d6d4f0cb..bc818cc126e3 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -14,16 +14,17 @@ * */ +#include "kvm_svm.h" +#include "x86_emulate.h" + #include <linux/module.h> #include <linux/kernel.h> #include <linux/vmalloc.h> #include <linux/highmem.h> #include <linux/profile.h> #include <linux/sched.h> -#include <asm/desc.h> -#include "kvm_svm.h" -#include "x86_emulate.h" +#include <asm/desc.h> MODULE_AUTHOR("Qumranet"); MODULE_LICENSE("GPL"); @@ -378,7 +379,7 @@ static __init int svm_hardware_setup(void) int cpu; struct page *iopm_pages; struct page *msrpm_pages; - void *msrpm_va; + void *iopm_va, *msrpm_va; int r; kvm_emulator_want_group7_invlpg(); @@ -387,8 +388,10 @@ static __init int svm_hardware_setup(void) if (!iopm_pages) return -ENOMEM; - memset(page_address(iopm_pages), 0xff, - PAGE_SIZE * (1 << IOPM_ALLOC_ORDER)); + + iopm_va = page_address(iopm_pages); + memset(iopm_va, 0xff, PAGE_SIZE * (1 << IOPM_ALLOC_ORDER)); + clear_bit(0x80, iopm_va); /* allow direct access to PC debug port */ iopm_base = page_to_pfn(iopm_pages) << PAGE_SHIFT; @@ -579,7 +582,7 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu) goto out2; vcpu->svm->vmcb = page_address(page); - memset(vcpu->svm->vmcb, 0, PAGE_SIZE); + clear_page(vcpu->svm->vmcb); vcpu->svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT; vcpu->svm->asid_generation = 0; memset(vcpu->svm->db_regs, 0, sizeof(vcpu->svm->db_regs)); @@ -587,9 +590,9 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu) fx_init(vcpu); vcpu->fpu_active = 1; - vcpu->apic_base = 0xfee00000 | - /*for vcpu 0*/ MSR_IA32_APICBASE_BSP | - MSR_IA32_APICBASE_ENABLE; + vcpu->apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; + if (vcpu == &vcpu->kvm->vcpus[0]) + vcpu->apic_base |= MSR_IA32_APICBASE_BSP; return 0; @@ -955,7 +958,7 @@ static int shutdown_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) * VMCB is undefined after a SHUTDOWN intercept * so reinitialize it. */ - memset(vcpu->svm->vmcb, 0, PAGE_SIZE); + clear_page(vcpu->svm->vmcb); init_vmcb(vcpu->svm->vmcb); kvm_run->exit_reason = KVM_EXIT_SHUTDOWN; @@ -1113,12 +1116,7 @@ static int halt_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { vcpu->svm->next_rip = vcpu->svm->vmcb->save.rip + 1; skip_emulated_instruction(vcpu); - if (vcpu->irq_summary) - return 1; - - kvm_run->exit_reason = KVM_EXIT_HLT; - ++vcpu->stat.halt_exits; - return 0; + return kvm_emulate_halt(vcpu); } static int vmmcall_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) @@ -1473,6 +1471,11 @@ static void load_db_regs(unsigned long *db_regs) asm volatile ("mov %0, %%dr3" : : "r"(db_regs[3])); } +static void svm_flush_tlb(struct kvm_vcpu *vcpu) +{ + force_new_asid(vcpu); +} + static int svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { u16 fs_selector; @@ -1481,11 +1484,20 @@ static int svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int r; again: + r = kvm_mmu_reload(vcpu); + if (unlikely(r)) + return r; + if (!vcpu->mmio_read_completed) do_interrupt_requests(vcpu, kvm_run); clgi(); + vcpu->guest_mode = 1; + if (vcpu->requests) + if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests)) + svm_flush_tlb(vcpu); + pre_svm_run(vcpu); save_host_msrs(vcpu); @@ -1617,6 +1629,8 @@ again: #endif : "cc", "memory" ); + vcpu->guest_mode = 0; + if (vcpu->fpu_active) { fx_save(vcpu->guest_fx_image); fx_restore(vcpu->host_fx_image); @@ -1681,11 +1695,6 @@ again: return r; } -static void svm_flush_tlb(struct kvm_vcpu *vcpu) -{ - force_new_asid(vcpu); -} - static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root) { vcpu->svm->vmcb->save.cr3 = root; @@ -1727,6 +1736,12 @@ static void svm_inject_page_fault(struct kvm_vcpu *vcpu, static int is_disabled(void) { + u64 vm_cr; + + rdmsrl(MSR_VM_CR, vm_cr); + if (vm_cr & (1 << SVM_VM_CR_SVM_DISABLE)) + return 1; + return 0; } diff --git a/drivers/kvm/svm.h b/drivers/kvm/svm.h index 5e93814400ce..3b1b0f35b6cb 100644 --- a/drivers/kvm/svm.h +++ b/drivers/kvm/svm.h @@ -175,8 +175,11 @@ struct __attribute__ ((__packed__)) vmcb { #define SVM_CPUID_FUNC 0x8000000a #define MSR_EFER_SVME_MASK (1ULL << 12) +#define MSR_VM_CR 0xc0010114 #define MSR_VM_HSAVE_PA 0xc0010117ULL +#define SVM_VM_CR_SVM_DISABLE 4 + #define SVM_SELECTOR_S_SHIFT 4 #define SVM_SELECTOR_DPL_SHIFT 5 #define SVM_SELECTOR_P_SHIFT 7 diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index c1ac106ace8c..80628f69916d 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -17,28 +17,35 @@ #include "kvm.h" #include "vmx.h" +#include "segment_descriptor.h" + #include <linux/module.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/highmem.h> #include <linux/profile.h> #include <linux/sched.h> + #include <asm/io.h> #include <asm/desc.h> -#include "segment_descriptor.h" - MODULE_AUTHOR("Qumranet"); MODULE_LICENSE("GPL"); +static int init_rmode_tss(struct kvm *kvm); + static DEFINE_PER_CPU(struct vmcs *, vmxarea); static DEFINE_PER_CPU(struct vmcs *, current_vmcs); +static struct page *vmx_io_bitmap_a; +static struct page *vmx_io_bitmap_b; + #ifdef CONFIG_X86_64 #define HOST_IS_64 1 #else #define HOST_IS_64 0 #endif +#define EFER_SAVE_RESTORE_BITS ((u64)EFER_SCE) static struct vmcs_descriptor { int size; @@ -82,18 +89,17 @@ static const u32 vmx_msr_index[] = { }; #define NR_VMX_MSR ARRAY_SIZE(vmx_msr_index) -#ifdef CONFIG_X86_64 -static unsigned msr_offset_kernel_gs_base; -#define NR_64BIT_MSRS 4 -/* - * avoid save/load MSR_SYSCALL_MASK and MSR_LSTAR by std vt - * mechanism (cpu bug AA24) - */ -#define NR_BAD_MSRS 2 -#else -#define NR_64BIT_MSRS 0 -#define NR_BAD_MSRS 0 -#endif +static inline u64 msr_efer_save_restore_bits(struct vmx_msr_entry msr) +{ + return (u64)msr.data & EFER_SAVE_RESTORE_BITS; +} + +static inline int msr_efer_need_save_restore(struct kvm_vcpu *vcpu) +{ + int efer_offset = vcpu->msr_offset_efer; + return msr_efer_save_restore_bits(vcpu->host_msrs[efer_offset]) != + msr_efer_save_restore_bits(vcpu->guest_msrs[efer_offset]); +} static inline int is_page_fault(u32 intr_info) { @@ -115,13 +121,23 @@ static inline int is_external_interrupt(u32 intr_info) == (INTR_TYPE_EXT_INTR | INTR_INFO_VALID_MASK); } -static struct vmx_msr_entry *find_msr_entry(struct kvm_vcpu *vcpu, u32 msr) +static int __find_msr_index(struct kvm_vcpu *vcpu, u32 msr) { int i; for (i = 0; i < vcpu->nmsrs; ++i) if (vcpu->guest_msrs[i].index == msr) - return &vcpu->guest_msrs[i]; + return i; + return -1; +} + +static struct vmx_msr_entry *find_msr_entry(struct kvm_vcpu *vcpu, u32 msr) +{ + int i; + + i = __find_msr_index(vcpu, msr); + if (i >= 0) + return &vcpu->guest_msrs[i]; return NULL; } @@ -147,6 +163,7 @@ static void __vcpu_clear(void *arg) vmcs_clear(vcpu->vmcs); if (per_cpu(current_vmcs, cpu) == vcpu->vmcs) per_cpu(current_vmcs, cpu) = NULL; + rdtscll(vcpu->host_tsc); } static void vcpu_clear(struct kvm_vcpu *vcpu) @@ -234,6 +251,127 @@ static void vmcs_set_bits(unsigned long field, u32 mask) vmcs_writel(field, vmcs_readl(field) | mask); } +static void update_exception_bitmap(struct kvm_vcpu *vcpu) +{ + u32 eb; + + eb = 1u << PF_VECTOR; + if (!vcpu->fpu_active) + eb |= 1u << NM_VECTOR; + if (vcpu->guest_debug.enabled) + eb |= 1u << 1; + if (vcpu->rmode.active) + eb = ~0; + vmcs_write32(EXCEPTION_BITMAP, eb); +} + +static void reload_tss(void) +{ +#ifndef CONFIG_X86_64 + + /* + * VT restores TR but not its size. Useless. + */ + struct descriptor_table gdt; + struct segment_descriptor *descs; + + get_gdt(&gdt); + descs = (void *)gdt.base; + descs[GDT_ENTRY_TSS].type = 9; /* available TSS */ + load_TR_desc(); +#endif +} + +static void load_transition_efer(struct kvm_vcpu *vcpu) +{ + u64 trans_efer; + int efer_offset = vcpu->msr_offset_efer; + + trans_efer = vcpu->host_msrs[efer_offset].data; + trans_efer &= ~EFER_SAVE_RESTORE_BITS; + trans_efer |= msr_efer_save_restore_bits( + vcpu->guest_msrs[efer_offset]); + wrmsrl(MSR_EFER, trans_efer); + vcpu->stat.efer_reload++; +} + +static void vmx_save_host_state(struct kvm_vcpu *vcpu) +{ + struct vmx_host_state *hs = &vcpu->vmx_host_state; + + if (hs->loaded) + return; + + hs->loaded = 1; + /* + * Set host fs and gs selectors. Unfortunately, 22.2.3 does not + * allow segment selectors with cpl > 0 or ti == 1. + */ + hs->ldt_sel = read_ldt(); + hs->fs_gs_ldt_reload_needed = hs->ldt_sel; + hs->fs_sel = read_fs(); + if (!(hs->fs_sel & 7)) + vmcs_write16(HOST_FS_SELECTOR, hs->fs_sel); + else { + vmcs_write16(HOST_FS_SELECTOR, 0); + hs->fs_gs_ldt_reload_needed = 1; + } + hs->gs_sel = read_gs(); + if (!(hs->gs_sel & 7)) + vmcs_write16(HOST_GS_SELECTOR, hs->gs_sel); + else { + vmcs_write16(HOST_GS_SELECTOR, 0); + hs->fs_gs_ldt_reload_needed = 1; + } + +#ifdef CONFIG_X86_64 + vmcs_writel(HOST_FS_BASE, read_msr(MSR_FS_BASE)); + vmcs_writel(HOST_GS_BASE, read_msr(MSR_GS_BASE)); +#else + vmcs_writel(HOST_FS_BASE, segment_base(hs->fs_sel)); + vmcs_writel(HOST_GS_BASE, segment_base(hs->gs_sel)); +#endif + +#ifdef CONFIG_X86_64 + if (is_long_mode(vcpu)) { + save_msrs(vcpu->host_msrs + vcpu->msr_offset_kernel_gs_base, 1); + } +#endif + load_msrs(vcpu->guest_msrs, vcpu->save_nmsrs); + if (msr_efer_need_save_restore(vcpu)) + load_transition_efer(vcpu); +} + +static void vmx_load_host_state(struct kvm_vcpu *vcpu) +{ + struct vmx_host_state *hs = &vcpu->vmx_host_state; + + if (!hs->loaded) + return; + + hs->loaded = 0; + if (hs->fs_gs_ldt_reload_needed) { + load_ldt(hs->ldt_sel); + load_fs(hs->fs_sel); + /* + * If we have to reload gs, we must take care to + * preserve our gs base. + */ + local_irq_disable(); + load_gs(hs->gs_sel); +#ifdef CONFIG_X86_64 + wrmsrl(MSR_GS_BASE, vmcs_readl(HOST_GS_BASE)); +#endif + local_irq_enable(); + + reload_tss(); + } + save_msrs(vcpu->guest_msrs, vcpu->save_nmsrs); + load_msrs(vcpu->host_msrs, vcpu->save_nmsrs); + if (msr_efer_need_save_restore(vcpu)) + load_msrs(vcpu->host_msrs + vcpu->msr_offset_efer, 1); +} + /* * Switches to specified vcpu, until a matching vcpu_put(), but assumes * vcpu mutex is already taken. @@ -242,6 +380,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu) { u64 phys_addr = __pa(vcpu->vmcs); int cpu; + u64 tsc_this, delta; cpu = get_cpu(); @@ -275,15 +414,43 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu) rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp); vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */ + + /* + * Make sure the time stamp counter is monotonous. + */ + rdtscll(tsc_this); + delta = vcpu->host_tsc - tsc_this; + vmcs_write64(TSC_OFFSET, vmcs_read64(TSC_OFFSET) + delta); } } static void vmx_vcpu_put(struct kvm_vcpu *vcpu) { + vmx_load_host_state(vcpu); kvm_put_guest_fpu(vcpu); put_cpu(); } +static void vmx_fpu_activate(struct kvm_vcpu *vcpu) +{ + if (vcpu->fpu_active) + return; + vcpu->fpu_active = 1; + vmcs_clear_bits(GUEST_CR0, CR0_TS_MASK); + if (vcpu->cr0 & CR0_TS_MASK) + vmcs_set_bits(GUEST_CR0, CR0_TS_MASK); + update_exception_bitmap(vcpu); +} + +static void vmx_fpu_deactivate(struct kvm_vcpu *vcpu) +{ + if (!vcpu->fpu_active) + return; + vcpu->fpu_active = 0; + vmcs_set_bits(GUEST_CR0, CR0_TS_MASK); + update_exception_bitmap(vcpu); +} + static void vmx_vcpu_decache(struct kvm_vcpu *vcpu) { vcpu_clear(vcpu); @@ -332,41 +499,61 @@ static void vmx_inject_gp(struct kvm_vcpu *vcpu, unsigned error_code) } /* + * Swap MSR entry in host/guest MSR entry array. + */ +void move_msr_up(struct kvm_vcpu *vcpu, int from, int to) +{ + struct vmx_msr_entry tmp; + tmp = vcpu->guest_msrs[to]; + vcpu->guest_msrs[to] = vcpu->guest_msrs[from]; + vcpu->guest_msrs[from] = tmp; + tmp = vcpu->host_msrs[to]; + vcpu->host_msrs[to] = vcpu->host_msrs[from]; + vcpu->host_msrs[from] = tmp; +} + +/* * Set up the vmcs to automatically save and restore system * msrs. Don't touch the 64-bit msrs if the guest is in legacy * mode, as fiddling with msrs is very expensive. */ static void setup_msrs(struct kvm_vcpu *vcpu) { - int nr_skip, nr_good_msrs; - - if (is_long_mode(vcpu)) - nr_skip = NR_BAD_MSRS; - else - nr_skip = NR_64BIT_MSRS; - nr_good_msrs = vcpu->nmsrs - nr_skip; + int save_nmsrs; - /* - * MSR_K6_STAR is only needed on long mode guests, and only - * if efer.sce is enabled. - */ - if (find_msr_entry(vcpu, MSR_K6_STAR)) { - --nr_good_msrs; + save_nmsrs = 0; #ifdef CONFIG_X86_64 - if (is_long_mode(vcpu) && (vcpu->shadow_efer & EFER_SCE)) - ++nr_good_msrs; -#endif + if (is_long_mode(vcpu)) { + int index; + + index = __find_msr_index(vcpu, MSR_SYSCALL_MASK); + if (index >= 0) + move_msr_up(vcpu, index, save_nmsrs++); + index = __find_msr_index(vcpu, MSR_LSTAR); + if (index >= 0) + move_msr_up(vcpu, index, save_nmsrs++); + index = __find_msr_index(vcpu, MSR_CSTAR); + if (index >= 0) + move_msr_up(vcpu, index, save_nmsrs++); + index = __find_msr_index(vcpu, MSR_KERNEL_GS_BASE); + if (index >= 0) + move_msr_up(vcpu, index, save_nmsrs++); + /* + * MSR_K6_STAR is only needed on long mode guests, and only + * if efer.sce is enabled. + */ + index = __find_msr_index(vcpu, MSR_K6_STAR); + if ((index >= 0) && (vcpu->shadow_efer & EFER_SCE)) + move_msr_up(vcpu, index, save_nmsrs++); } +#endif + vcpu->save_nmsrs = save_nmsrs; - vmcs_writel(VM_ENTRY_MSR_LOAD_ADDR, - virt_to_phys(vcpu->guest_msrs + nr_skip)); - vmcs_writel(VM_EXIT_MSR_STORE_ADDR, - virt_to_phys(vcpu->guest_msrs + nr_skip)); - vmcs_writel(VM_EXIT_MSR_LOAD_ADDR, - virt_to_phys(vcpu->host_msrs + nr_skip)); - vmcs_write32(VM_EXIT_MSR_STORE_COUNT, nr_good_msrs); /* 22.2.2 */ - vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, nr_good_msrs); /* 22.2.2 */ - vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, nr_good_msrs); /* 22.2.2 */ +#ifdef CONFIG_X86_64 + vcpu->msr_offset_kernel_gs_base = + __find_msr_index(vcpu, MSR_KERNEL_GS_BASE); +#endif + vcpu->msr_offset_efer = __find_msr_index(vcpu, MSR_EFER); } /* @@ -394,23 +581,6 @@ static void guest_write_tsc(u64 guest_tsc) vmcs_write64(TSC_OFFSET, guest_tsc - host_tsc); } -static void reload_tss(void) -{ -#ifndef CONFIG_X86_64 - - /* - * VT restores TR but not its size. Useless. - */ - struct descriptor_table gdt; - struct segment_descriptor *descs; - - get_gdt(&gdt); - descs = (void *)gdt.base; - descs[GDT_ENTRY_TSS].type = 9; /* available TSS */ - load_TR_desc(); -#endif -} - /* * Reads an msr value (of 'msr_index') into 'pdata'. * Returns 0 on success, non-0 otherwise. @@ -470,10 +640,15 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata) static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data) { struct vmx_msr_entry *msr; + int ret = 0; + switch (msr_index) { #ifdef CONFIG_X86_64 case MSR_EFER: - return kvm_set_msr_common(vcpu, msr_index, data); + ret = kvm_set_msr_common(vcpu, msr_index, data); + if (vcpu->vmx_host_state.loaded) + load_transition_efer(vcpu); + break; case MSR_FS_BASE: vmcs_writel(GUEST_FS_BASE, data); break; @@ -497,14 +672,14 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data) msr = find_msr_entry(vcpu, msr_index); if (msr) { msr->data = data; + if (vcpu->vmx_host_state.loaded) + load_msrs(vcpu->guest_msrs, vcpu->save_nmsrs); break; } - return kvm_set_msr_common(vcpu, msr_index, data); - msr->data = data; - break; + ret = kvm_set_msr_common(vcpu, msr_index, data); } - return 0; + return ret; } /* @@ -530,10 +705,8 @@ static void vcpu_put_rsp_rip(struct kvm_vcpu *vcpu) static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg) { unsigned long dr7 = 0x400; - u32 exception_bitmap; int old_singlestep; - exception_bitmap = vmcs_read32(EXCEPTION_BITMAP); old_singlestep = vcpu->guest_debug.singlestep; vcpu->guest_debug.enabled = dbg->enabled; @@ -549,13 +722,9 @@ static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg) dr7 |= 0 << (i*4+16); /* execution breakpoint */ } - exception_bitmap |= (1u << 1); /* Trap debug exceptions */ - vcpu->guest_debug.singlestep = dbg->singlestep; - } else { - exception_bitmap &= ~(1u << 1); /* Ignore debug exceptions */ + } else vcpu->guest_debug.singlestep = 0; - } if (old_singlestep && !vcpu->guest_debug.singlestep) { unsigned long flags; @@ -565,7 +734,7 @@ static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg) vmcs_writel(GUEST_RFLAGS, flags); } - vmcs_write32(EXCEPTION_BITMAP, exception_bitmap); + update_exception_bitmap(vcpu); vmcs_writel(GUEST_DR7, dr7); return 0; @@ -679,14 +848,6 @@ static __exit void hardware_unsetup(void) free_kvm_area(); } -static void update_exception_bitmap(struct kvm_vcpu *vcpu) -{ - if (vcpu->rmode.active) - vmcs_write32(EXCEPTION_BITMAP, ~0); - else - vmcs_write32(EXCEPTION_BITMAP, 1 << PF_VECTOR); -} - static void fix_pmode_dataseg(int seg, struct kvm_save_segment *save) { struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg]; @@ -793,6 +954,8 @@ static void enter_rmode(struct kvm_vcpu *vcpu) fix_rmode_seg(VCPU_SREG_DS, &vcpu->rmode.ds); fix_rmode_seg(VCPU_SREG_GS, &vcpu->rmode.gs); fix_rmode_seg(VCPU_SREG_FS, &vcpu->rmode.fs); + + init_rmode_tss(vcpu->kvm); } #ifdef CONFIG_X86_64 @@ -837,6 +1000,8 @@ static void vmx_decache_cr4_guest_bits(struct kvm_vcpu *vcpu) static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) { + vmx_fpu_deactivate(vcpu); + if (vcpu->rmode.active && (cr0 & CR0_PE_MASK)) enter_pmode(vcpu); @@ -852,26 +1017,20 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) } #endif - if (!(cr0 & CR0_TS_MASK)) { - vcpu->fpu_active = 1; - vmcs_clear_bits(EXCEPTION_BITMAP, CR0_TS_MASK); - } - vmcs_writel(CR0_READ_SHADOW, cr0); vmcs_writel(GUEST_CR0, (cr0 & ~KVM_GUEST_CR0_MASK) | KVM_VM_CR0_ALWAYS_ON); vcpu->cr0 = cr0; + + if (!(cr0 & CR0_TS_MASK) || !(cr0 & CR0_PE_MASK)) + vmx_fpu_activate(vcpu); } static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) { vmcs_writel(GUEST_CR3, cr3); - - if (!(vcpu->cr0 & CR0_TS_MASK)) { - vcpu->fpu_active = 0; - vmcs_set_bits(GUEST_CR0, CR0_TS_MASK); - vmcs_set_bits(EXCEPTION_BITMAP, 1 << NM_VECTOR); - } + if (vcpu->cr0 & CR0_PE_MASK) + vmx_fpu_deactivate(vcpu); } static void vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) @@ -937,23 +1096,11 @@ static void vmx_get_segment(struct kvm_vcpu *vcpu, var->unusable = (ar >> 16) & 1; } -static void vmx_set_segment(struct kvm_vcpu *vcpu, - struct kvm_segment *var, int seg) +static u32 vmx_segment_access_rights(struct kvm_segment *var) { - struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg]; u32 ar; - vmcs_writel(sf->base, var->base); - vmcs_write32(sf->limit, var->limit); - vmcs_write16(sf->selector, var->selector); - if (vcpu->rmode.active && var->s) { - /* - * Hack real-mode segments into vm86 compatibility. - */ - if (var->base == 0xffff0000 && var->selector == 0xf000) - vmcs_writel(sf->base, 0xf0000); - ar = 0xf3; - } else if (var->unusable) + if (var->unusable) ar = 1 << 16; else { ar = var->type & 15; @@ -967,6 +1114,35 @@ static void vmx_set_segment(struct kvm_vcpu *vcpu, } if (ar == 0) /* a 0 value means unusable */ ar = AR_UNUSABLE_MASK; + + return ar; +} + +static void vmx_set_segment(struct kvm_vcpu *vcpu, + struct kvm_segment *var, int seg) +{ + struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg]; + u32 ar; + + if (vcpu->rmode.active && seg == VCPU_SREG_TR) { + vcpu->rmode.tr.selector = var->selector; + vcpu->rmode.tr.base = var->base; + vcpu->rmode.tr.limit = var->limit; + vcpu->rmode.tr.ar = vmx_segment_access_rights(var); + return; + } + vmcs_writel(sf->base, var->base); + vmcs_write32(sf->limit, var->limit); + vmcs_write16(sf->selector, var->selector); + if (vcpu->rmode.active && var->s) { + /* + * Hack real-mode segments into vm86 compatibility. + */ + if (var->base == 0xffff0000 && var->selector == 0xf000) + vmcs_writel(sf->base, 0xf0000); + ar = 0xf3; + } else + ar = vmx_segment_access_rights(var); vmcs_write32(sf->ar_bytes, ar); } @@ -1018,16 +1194,16 @@ static int init_rmode_tss(struct kvm* kvm) } page = kmap_atomic(p1, KM_USER0); - memset(page, 0, PAGE_SIZE); + clear_page(page); *(u16*)(page + 0x66) = TSS_BASE_SIZE + TSS_REDIRECTION_SIZE; kunmap_atomic(page, KM_USER0); page = kmap_atomic(p2, KM_USER0); - memset(page, 0, PAGE_SIZE); + clear_page(page); kunmap_atomic(page, KM_USER0); page = kmap_atomic(p3, KM_USER0); - memset(page, 0, PAGE_SIZE); + clear_page(page); *(page + RMODE_TSS_SIZE - 2 * PAGE_SIZE - 1) = ~0; kunmap_atomic(page, KM_USER0); @@ -1066,7 +1242,7 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) struct descriptor_table dt; int i; int ret = 0; - extern asmlinkage void kvm_vmx_return(void); + unsigned long kvm_vmx_return; if (!init_rmode_tss(vcpu->kvm)) { ret = -ENOMEM; @@ -1076,9 +1252,9 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) memset(vcpu->regs, 0, sizeof(vcpu->regs)); vcpu->regs[VCPU_REGS_RDX] = get_rdx_init_val(); vcpu->cr8 = 0; - vcpu->apic_base = 0xfee00000 | - /*for vcpu 0*/ MSR_IA32_APICBASE_BSP | - MSR_IA32_APICBASE_ENABLE; + vcpu->apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; + if (vcpu == &vcpu->kvm->vcpus[0]) + vcpu->apic_base |= MSR_IA32_APICBASE_BSP; fx_init(vcpu); @@ -1129,8 +1305,8 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) vmcs_write32(GUEST_PENDING_DBG_EXCEPTIONS, 0); /* I/O */ - vmcs_write64(IO_BITMAP_A, 0); - vmcs_write64(IO_BITMAP_B, 0); + vmcs_write64(IO_BITMAP_A, page_to_phys(vmx_io_bitmap_a)); + vmcs_write64(IO_BITMAP_B, page_to_phys(vmx_io_bitmap_b)); guest_write_tsc(0); @@ -1150,12 +1326,11 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) CPU_BASED_HLT_EXITING /* 20.6.2 */ | CPU_BASED_CR8_LOAD_EXITING /* 20.6.2 */ | CPU_BASED_CR8_STORE_EXITING /* 20.6.2 */ - | CPU_BASED_UNCOND_IO_EXITING /* 20.6.2 */ + | CPU_BASED_ACTIVATE_IO_BITMAP /* 20.6.2 */ | CPU_BASED_MOV_DR_EXITING | CPU_BASED_USE_TSC_OFFSETING /* 21.3 */ ); - vmcs_write32(EXCEPTION_BITMAP, 1 << PF_VECTOR); vmcs_write32(PAGE_FAULT_ERROR_CODE_MASK, 0); vmcs_write32(PAGE_FAULT_ERROR_CODE_MATCH, 0); vmcs_write32(CR3_TARGET_COUNT, 0); /* 22.2.1 */ @@ -1185,8 +1360,11 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) get_idt(&dt); vmcs_writel(HOST_IDTR_BASE, dt.base); /* 22.2.4 */ - - vmcs_writel(HOST_RIP, (unsigned long)kvm_vmx_return); /* 22.2.5 */ + asm ("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return)); + vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */ + vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0); + vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0); + vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0); rdmsr(MSR_IA32_SYSENTER_CS, host_sysenter_cs, junk); vmcs_write32(HOST_IA32_SYSENTER_CS, host_sysenter_cs); @@ -1210,10 +1388,6 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) vcpu->host_msrs[j].reserved = 0; vcpu->host_msrs[j].data = data; vcpu->guest_msrs[j] = vcpu->host_msrs[j]; -#ifdef CONFIG_X86_64 - if (index == MSR_KERNEL_GS_BASE) - msr_offset_kernel_gs_base = j; -#endif ++vcpu->nmsrs; } @@ -1241,6 +1415,8 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) #ifdef CONFIG_X86_64 vmx_set_efer(vcpu, 0); #endif + vmx_fpu_activate(vcpu); + update_exception_bitmap(vcpu); return 0; @@ -1365,7 +1541,11 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu, if (!vcpu->rmode.active) return 0; - if (vec == GP_VECTOR && err_code == 0) + /* + * Instruction with address size override prefix opcode 0x67 + * Cause the #SS fault with 0 error code in VM86 mode. + */ + if (((vec == GP_VECTOR) || (vec == SS_VECTOR)) && err_code == 0) if (emulate_instruction(vcpu, NULL, 0, 0) == EMULATE_DONE) return 1; return 0; @@ -1400,10 +1580,7 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) } if (is_no_device(intr_info)) { - vcpu->fpu_active = 1; - vmcs_clear_bits(EXCEPTION_BITMAP, 1 << NM_VECTOR); - if (!(vcpu->cr0 & CR0_TS_MASK)) - vmcs_clear_bits(GUEST_CR0, CR0_TS_MASK); + vmx_fpu_activate(vcpu); return 1; } @@ -1445,8 +1622,13 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) if (vcpu->rmode.active && handle_rmode_exception(vcpu, intr_info & INTR_INFO_VECTOR_MASK, - error_code)) + error_code)) { + if (vcpu->halt_request) { + vcpu->halt_request = 0; + return kvm_emulate_halt(vcpu); + } return 1; + } if ((intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK)) == (INTR_TYPE_EXCEPTION | 1)) { kvm_run->exit_reason = KVM_EXIT_DEBUG; @@ -1595,11 +1777,10 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) break; case 2: /* clts */ vcpu_load_rsp_rip(vcpu); - vcpu->fpu_active = 1; - vmcs_clear_bits(EXCEPTION_BITMAP, 1 << NM_VECTOR); - vmcs_clear_bits(GUEST_CR0, CR0_TS_MASK); + vmx_fpu_deactivate(vcpu); vcpu->cr0 &= ~CR0_TS_MASK; vmcs_writel(CR0_READ_SHADOW, vcpu->cr0); + vmx_fpu_activate(vcpu); skip_emulated_instruction(vcpu); return 1; case 1: /*mov from cr*/ @@ -1734,12 +1915,7 @@ static int handle_interrupt_window(struct kvm_vcpu *vcpu, static int handle_halt(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { skip_emulated_instruction(vcpu); - if (vcpu->irq_summary) - return 1; - - kvm_run->exit_reason = KVM_EXIT_HLT; - ++vcpu->stat.halt_exits; - return 0; + return kvm_emulate_halt(vcpu); } static int handle_vmcall(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) @@ -1770,7 +1946,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu, }; static const int kvm_vmx_max_exit_handlers = - sizeof(kvm_vmx_exit_handlers) / sizeof(*kvm_vmx_exit_handlers); + ARRAY_SIZE(kvm_vmx_exit_handlers); /* * The guest has exited. See if we can fix it or if we need userspace @@ -1810,61 +1986,44 @@ static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu, (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF)); } +static void vmx_flush_tlb(struct kvm_vcpu *vcpu) +{ +} + static int vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { u8 fail; - u16 fs_sel, gs_sel, ldt_sel; - int fs_gs_ldt_reload_needed; int r; -again: - /* - * Set host fs and gs selectors. Unfortunately, 22.2.3 does not - * allow segment selectors with cpl > 0 or ti == 1. - */ - fs_sel = read_fs(); - gs_sel = read_gs(); - ldt_sel = read_ldt(); - fs_gs_ldt_reload_needed = (fs_sel & 7) | (gs_sel & 7) | ldt_sel; - if (!fs_gs_ldt_reload_needed) { - vmcs_write16(HOST_FS_SELECTOR, fs_sel); - vmcs_write16(HOST_GS_SELECTOR, gs_sel); - } else { - vmcs_write16(HOST_FS_SELECTOR, 0); - vmcs_write16(HOST_GS_SELECTOR, 0); - } - -#ifdef CONFIG_X86_64 - vmcs_writel(HOST_FS_BASE, read_msr(MSR_FS_BASE)); - vmcs_writel(HOST_GS_BASE, read_msr(MSR_GS_BASE)); -#else - vmcs_writel(HOST_FS_BASE, segment_base(fs_sel)); - vmcs_writel(HOST_GS_BASE, segment_base(gs_sel)); -#endif +preempted: + if (vcpu->guest_debug.enabled) + kvm_guest_debug_pre(vcpu); +again: if (!vcpu->mmio_read_completed) do_interrupt_requests(vcpu, kvm_run); - if (vcpu->guest_debug.enabled) - kvm_guest_debug_pre(vcpu); - + vmx_save_host_state(vcpu); kvm_load_guest_fpu(vcpu); + r = kvm_mmu_reload(vcpu); + if (unlikely(r)) + goto out; + /* * Loading guest fpu may have cleared host cr0.ts */ vmcs_writel(HOST_CR0, read_cr0()); -#ifdef CONFIG_X86_64 - if (is_long_mode(vcpu)) { - save_msrs(vcpu->host_msrs + msr_offset_kernel_gs_base, 1); - load_msrs(vcpu->guest_msrs, NR_BAD_MSRS); - } -#endif + local_irq_disable(); + + vcpu->guest_mode = 1; + if (vcpu->requests) + if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests)) + vmx_flush_tlb(vcpu); asm ( /* Store host registers */ - "pushf \n\t" #ifdef CONFIG_X86_64 "push %%rax; push %%rbx; push %%rdx;" "push %%rsi; push %%rdi; push %%rbp;" @@ -1909,12 +2068,11 @@ again: "mov %c[rcx](%3), %%ecx \n\t" /* kills %3 (ecx) */ #endif /* Enter guest mode */ - "jne launched \n\t" + "jne .Llaunched \n\t" ASM_VMX_VMLAUNCH "\n\t" - "jmp kvm_vmx_return \n\t" - "launched: " ASM_VMX_VMRESUME "\n\t" - ".globl kvm_vmx_return \n\t" - "kvm_vmx_return: " + "jmp .Lkvm_vmx_return \n\t" + ".Llaunched: " ASM_VMX_VMRESUME "\n\t" + ".Lkvm_vmx_return: " /* Save guest registers, load host registers, keep flags */ #ifdef CONFIG_X86_64 "xchg %3, (%%rsp) \n\t" @@ -1957,7 +2115,6 @@ again: "pop %%ecx; popa \n\t" #endif "setbe %0 \n\t" - "popf \n\t" : "=q" (fail) : "r"(vcpu->launched), "d"((unsigned long)HOST_RSP), "c"(vcpu), @@ -1981,84 +2138,61 @@ again: [cr2]"i"(offsetof(struct kvm_vcpu, cr2)) : "cc", "memory" ); - /* - * Reload segment selectors ASAP. (it's needed for a functional - * kernel: x86 relies on having __KERNEL_PDA in %fs and x86_64 - * relies on having 0 in %gs for the CPU PDA to work.) - */ - if (fs_gs_ldt_reload_needed) { - load_ldt(ldt_sel); - load_fs(fs_sel); - /* - * If we have to reload gs, we must take care to - * preserve our gs base. - */ - local_irq_disable(); - load_gs(gs_sel); -#ifdef CONFIG_X86_64 - wrmsrl(MSR_GS_BASE, vmcs_readl(HOST_GS_BASE)); -#endif - local_irq_enable(); + vcpu->guest_mode = 0; + local_irq_enable(); - reload_tss(); - } ++vcpu->stat.exits; -#ifdef CONFIG_X86_64 - if (is_long_mode(vcpu)) { - save_msrs(vcpu->guest_msrs, NR_BAD_MSRS); - load_msrs(vcpu->host_msrs, NR_BAD_MSRS); - } -#endif - vcpu->interrupt_window_open = (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0; asm ("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS)); - if (fail) { + if (unlikely(fail)) { kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY; kvm_run->fail_entry.hardware_entry_failure_reason = vmcs_read32(VM_INSTRUCTION_ERROR); r = 0; - } else { - /* - * Profile KVM exit RIPs: - */ - if (unlikely(prof_on == KVM_PROFILING)) - profile_hit(KVM_PROFILING, (void *)vmcs_readl(GUEST_RIP)); - - vcpu->launched = 1; - r = kvm_handle_exit(kvm_run, vcpu); - if (r > 0) { - /* Give scheduler a change to reschedule. */ - if (signal_pending(current)) { - ++vcpu->stat.signal_exits; - post_kvm_run_save(vcpu, kvm_run); - kvm_run->exit_reason = KVM_EXIT_INTR; - return -EINTR; - } - - if (dm_request_for_irq_injection(vcpu, kvm_run)) { - ++vcpu->stat.request_irq_exits; - post_kvm_run_save(vcpu, kvm_run); - kvm_run->exit_reason = KVM_EXIT_INTR; - return -EINTR; - } - - kvm_resched(vcpu); + goto out; + } + /* + * Profile KVM exit RIPs: + */ + if (unlikely(prof_on == KVM_PROFILING)) + profile_hit(KVM_PROFILING, (void *)vmcs_readl(GUEST_RIP)); + + vcpu->launched = 1; + r = kvm_handle_exit(kvm_run, vcpu); + if (r > 0) { + /* Give scheduler a change to reschedule. */ + if (signal_pending(current)) { + r = -EINTR; + kvm_run->exit_reason = KVM_EXIT_INTR; + ++vcpu->stat.signal_exits; + goto out; + } + + if (dm_request_for_irq_injection(vcpu, kvm_run)) { + r = -EINTR; + kvm_run->exit_reason = KVM_EXIT_INTR; + ++vcpu->stat.request_irq_exits; + goto out; + } + if (!need_resched()) { + ++vcpu->stat.light_exits; goto again; } } +out: + if (r > 0) { + kvm_resched(vcpu); + goto preempted; + } + post_kvm_run_save(vcpu, kvm_run); return r; } -static void vmx_flush_tlb(struct kvm_vcpu *vcpu) -{ - vmcs_writel(GUEST_CR3, vmcs_readl(GUEST_CR3)); -} - static void vmx_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long addr, u32 err_code) @@ -2122,7 +2256,6 @@ static int vmx_create_vcpu(struct kvm_vcpu *vcpu) vmcs_clear(vmcs); vcpu->vmcs = vmcs; vcpu->launched = 0; - vcpu->fpu_active = 1; return 0; @@ -2188,11 +2321,50 @@ static struct kvm_arch_ops vmx_arch_ops = { static int __init vmx_init(void) { - return kvm_init_arch(&vmx_arch_ops, THIS_MODULE); + void *iova; + int r; + + vmx_io_bitmap_a = alloc_page(GFP_KERNEL | __GFP_HIGHMEM); + if (!vmx_io_bitmap_a) + return -ENOMEM; + + vmx_io_bitmap_b = alloc_page(GFP_KERNEL | __GFP_HIGHMEM); + if (!vmx_io_bitmap_b) { + r = -ENOMEM; + goto out; + } + + /* + * Allow direct access to the PC debug port (it is often used for I/O + * delays, but the vmexits simply slow things down). + */ + iova = kmap(vmx_io_bitmap_a); + memset(iova, 0xff, PAGE_SIZE); + clear_bit(0x80, iova); + kunmap(vmx_io_bitmap_a); + + iova = kmap(vmx_io_bitmap_b); + memset(iova, 0xff, PAGE_SIZE); + kunmap(vmx_io_bitmap_b); + + r = kvm_init_arch(&vmx_arch_ops, THIS_MODULE); + if (r) + goto out1; + + return 0; + +out1: + __free_page(vmx_io_bitmap_b); +out: + __free_page(vmx_io_bitmap_a); + return r; } static void __exit vmx_exit(void) { + __free_page(vmx_io_bitmap_b); + __free_page(vmx_io_bitmap_a); + kvm_exit_arch(); } diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index 7ade09086aa5..f60012d62610 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -98,8 +98,11 @@ static u8 opcode_table[256] = { 0, 0, 0, 0, /* 0x40 - 0x4F */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - /* 0x50 - 0x5F */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + /* 0x50 - 0x57 */ + 0, 0, 0, 0, 0, 0, 0, 0, + /* 0x58 - 0x5F */ + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, /* 0x60 - 0x6F */ 0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, @@ -128,9 +131,9 @@ static u8 opcode_table[256] = { /* 0xB0 - 0xBF */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xC0 - 0xC7 */ - ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM, 0, 0, - 0, 0, ByteOp | DstMem | SrcImm | ModRM | Mov, - DstMem | SrcImm | ModRM | Mov, + ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM, + 0, ImplicitOps, 0, 0, + ByteOp | DstMem | SrcImm | ModRM | Mov, DstMem | SrcImm | ModRM | Mov, /* 0xC8 - 0xCF */ 0, 0, 0, 0, 0, 0, 0, 0, /* 0xD0 - 0xD7 */ @@ -143,7 +146,8 @@ static u8 opcode_table[256] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xF0 - 0xF7 */ 0, 0, 0, 0, - 0, 0, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM, + ImplicitOps, 0, + ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM, /* 0xF8 - 0xFF */ 0, 0, 0, 0, 0, 0, ByteOp | DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM @@ -152,7 +156,7 @@ static u8 opcode_table[256] = { static u16 twobyte_table[256] = { /* 0x00 - 0x0F */ 0, SrcMem | ModRM | DstReg, 0, 0, 0, 0, ImplicitOps, 0, - 0, 0, 0, 0, 0, ImplicitOps | ModRM, 0, 0, + 0, ImplicitOps, 0, 0, 0, ImplicitOps | ModRM, 0, 0, /* 0x10 - 0x1F */ 0, 0, 0, 0, 0, 0, 0, 0, ImplicitOps | ModRM, 0, 0, 0, 0, 0, 0, 0, /* 0x20 - 0x2F */ @@ -481,6 +485,7 @@ x86_emulate_memop(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) int mode = ctxt->mode; unsigned long modrm_ea; int use_modrm_ea, index_reg = 0, base_reg = 0, scale, rip_relative = 0; + int no_wb = 0; /* Shadow copy of register state. Committed on successful emulation. */ unsigned long _regs[NR_VCPU_REGS]; @@ -1047,7 +1052,7 @@ done_prefixes: _regs[VCPU_REGS_RSP]), &dst.val, dst.bytes, ctxt)) != 0) goto done; - dst.val = dst.orig_val; /* skanky: disable writeback */ + no_wb = 1; break; default: goto cannot_emulate; @@ -1056,7 +1061,7 @@ done_prefixes: } writeback: - if ((d & Mov) || (dst.orig_val != dst.val)) { + if (!no_wb) { switch (dst.type) { case OP_REG: /* The 4-byte case *is* correct: in 64-bit mode we zero-extend. */ @@ -1149,6 +1154,23 @@ special_insn: case 0xae ... 0xaf: /* scas */ DPRINTF("Urk! I don't handle SCAS.\n"); goto cannot_emulate; + case 0xf4: /* hlt */ + ctxt->vcpu->halt_request = 1; + goto done; + case 0xc3: /* ret */ + dst.ptr = &_eip; + goto pop_instruction; + case 0x58 ... 0x5f: /* pop reg */ + dst.ptr = (unsigned long *)&_regs[b & 0x7]; + +pop_instruction: + if ((rc = ops->read_std(register_address(ctxt->ss_base, + _regs[VCPU_REGS_RSP]), dst.ptr, op_bytes, ctxt)) != 0) + goto done; + + register_address_increment(_regs[VCPU_REGS_RSP], op_bytes); + no_wb = 1; /* Disable writeback. */ + break; } goto writeback; @@ -1302,8 +1324,10 @@ twobyte_insn: twobyte_special_insn: /* Disable writeback. */ - dst.orig_val = dst.val; + no_wb = 1; switch (b) { + case 0x09: /* wbinvd */ + break; case 0x0d: /* GrpP (prefetch) */ case 0x18: /* Grp16 (prefetch/nop) */ break; diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig new file mode 100644 index 000000000000..43d901fdc77f --- /dev/null +++ b/drivers/lguest/Kconfig @@ -0,0 +1,20 @@ +config LGUEST + tristate "Linux hypervisor example code" + depends on X86 && PARAVIRT && NET && EXPERIMENTAL && !X86_PAE + select LGUEST_GUEST + select HVC_DRIVER + ---help--- + This is a very simple module which allows you to run + multiple instances of the same Linux kernel, using the + "lguest" command found in the Documentation/lguest directory. + Note that "lguest" is pronounced to rhyme with "fell quest", + not "rustyvisor". See Documentation/lguest/lguest.txt. + + If unsure, say N. If curious, say M. If masochistic, say Y. + +config LGUEST_GUEST + bool + help + The guest needs code built-in, even if the host has lguest + support as a module. The drivers are tiny, so we build them + in too. diff --git a/drivers/lguest/Makefile b/drivers/lguest/Makefile new file mode 100644 index 000000000000..55382c7d799c --- /dev/null +++ b/drivers/lguest/Makefile @@ -0,0 +1,7 @@ +# Guest requires the paravirt_ops replacement and the bus driver. +obj-$(CONFIG_LGUEST_GUEST) += lguest.o lguest_asm.o lguest_bus.o + +# Host requires the other files, which can be a module. +obj-$(CONFIG_LGUEST) += lg.o +lg-y := core.o hypercalls.o page_tables.o interrupts_and_traps.o \ + segments.o io.o lguest_user.o switcher.o diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c new file mode 100644 index 000000000000..ce909ec57499 --- /dev/null +++ b/drivers/lguest/core.c @@ -0,0 +1,462 @@ +/* World's simplest hypervisor, to test paravirt_ops and show + * unbelievers that virtualization is the future. Plus, it's fun! */ +#include <linux/module.h> +#include <linux/stringify.h> +#include <linux/stddef.h> +#include <linux/io.h> +#include <linux/mm.h> +#include <linux/vmalloc.h> +#include <linux/cpu.h> +#include <linux/freezer.h> +#include <asm/paravirt.h> +#include <asm/desc.h> +#include <asm/pgtable.h> +#include <asm/uaccess.h> +#include <asm/poll.h> +#include <asm/highmem.h> +#include <asm/asm-offsets.h> +#include <asm/i387.h> +#include "lg.h" + +/* Found in switcher.S */ +extern char start_switcher_text[], end_switcher_text[], switch_to_guest[]; +extern unsigned long default_idt_entries[]; + +/* Every guest maps the core switcher code. */ +#define SHARED_SWITCHER_PAGES \ + DIV_ROUND_UP(end_switcher_text - start_switcher_text, PAGE_SIZE) +/* Pages for switcher itself, then two pages per cpu */ +#define TOTAL_SWITCHER_PAGES (SHARED_SWITCHER_PAGES + 2 * NR_CPUS) + +/* We map at -4M for ease of mapping into the guest (one PTE page). */ +#define SWITCHER_ADDR 0xFFC00000 + +static struct vm_struct *switcher_vma; +static struct page **switcher_page; + +static int cpu_had_pge; +static struct { + unsigned long offset; + unsigned short segment; +} lguest_entry; + +/* This One Big lock protects all inter-guest data structures. */ +DEFINE_MUTEX(lguest_lock); +static DEFINE_PER_CPU(struct lguest *, last_guest); + +/* FIXME: Make dynamic. */ +#define MAX_LGUEST_GUESTS 16 +struct lguest lguests[MAX_LGUEST_GUESTS]; + +/* Offset from where switcher.S was compiled to where we've copied it */ +static unsigned long switcher_offset(void) +{ + return SWITCHER_ADDR - (unsigned long)start_switcher_text; +} + +/* This cpu's struct lguest_pages. */ +static struct lguest_pages *lguest_pages(unsigned int cpu) +{ + return &(((struct lguest_pages *) + (SWITCHER_ADDR + SHARED_SWITCHER_PAGES*PAGE_SIZE))[cpu]); +} + +static __init int map_switcher(void) +{ + int i, err; + struct page **pagep; + + switcher_page = kmalloc(sizeof(switcher_page[0])*TOTAL_SWITCHER_PAGES, + GFP_KERNEL); + if (!switcher_page) { + err = -ENOMEM; + goto out; + } + + for (i = 0; i < TOTAL_SWITCHER_PAGES; i++) { + unsigned long addr = get_zeroed_page(GFP_KERNEL); + if (!addr) { + err = -ENOMEM; + goto free_some_pages; + } + switcher_page[i] = virt_to_page(addr); + } + + switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, + VM_ALLOC, SWITCHER_ADDR, VMALLOC_END); + if (!switcher_vma) { + err = -ENOMEM; + printk("lguest: could not map switcher pages high\n"); + goto free_pages; + } + + pagep = switcher_page; + err = map_vm_area(switcher_vma, PAGE_KERNEL, &pagep); + if (err) { + printk("lguest: map_vm_area failed: %i\n", err); + goto free_vma; + } + memcpy(switcher_vma->addr, start_switcher_text, + end_switcher_text - start_switcher_text); + + /* Fix up IDT entries to point into copied text. */ + for (i = 0; i < IDT_ENTRIES; i++) + default_idt_entries[i] += switcher_offset(); + + for_each_possible_cpu(i) { + struct lguest_pages *pages = lguest_pages(i); + struct lguest_ro_state *state = &pages->state; + + /* These fields are static: rest done in copy_in_guest_info */ + state->host_gdt_desc.size = GDT_SIZE-1; + state->host_gdt_desc.address = (long)get_cpu_gdt_table(i); + store_idt(&state->host_idt_desc); + state->guest_idt_desc.size = sizeof(state->guest_idt)-1; + state->guest_idt_desc.address = (long)&state->guest_idt; + state->guest_gdt_desc.size = sizeof(state->guest_gdt)-1; + state->guest_gdt_desc.address = (long)&state->guest_gdt; + state->guest_tss.esp0 = (long)(&pages->regs + 1); + state->guest_tss.ss0 = LGUEST_DS; + /* No I/O for you! */ + state->guest_tss.io_bitmap_base = sizeof(state->guest_tss); + setup_default_gdt_entries(state); + setup_default_idt_entries(state, default_idt_entries); + + /* Setup LGUEST segments on all cpus */ + get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT; + get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT; + } + + /* Initialize entry point into switcher. */ + lguest_entry.offset = (long)switch_to_guest + switcher_offset(); + lguest_entry.segment = LGUEST_CS; + + printk(KERN_INFO "lguest: mapped switcher at %p\n", + switcher_vma->addr); + return 0; + +free_vma: + vunmap(switcher_vma->addr); +free_pages: + i = TOTAL_SWITCHER_PAGES; +free_some_pages: + for (--i; i >= 0; i--) + __free_pages(switcher_page[i], 0); + kfree(switcher_page); +out: + return err; +} + +static void unmap_switcher(void) +{ + unsigned int i; + + vunmap(switcher_vma->addr); + for (i = 0; i < TOTAL_SWITCHER_PAGES; i++) + __free_pages(switcher_page[i], 0); +} + +/* IN/OUT insns: enough to get us past boot-time probing. */ +static int emulate_insn(struct lguest *lg) +{ + u8 insn; + unsigned int insnlen = 0, in = 0, shift = 0; + unsigned long physaddr = guest_pa(lg, lg->regs->eip); + + /* This only works for addresses in linear mapping... */ + if (lg->regs->eip < lg->page_offset) + return 0; + lgread(lg, &insn, physaddr, 1); + + /* Operand size prefix means it's actually for ax. */ + if (insn == 0x66) { + shift = 16; + insnlen = 1; + lgread(lg, &insn, physaddr + insnlen, 1); + } + + switch (insn & 0xFE) { + case 0xE4: /* in <next byte>,%al */ + insnlen += 2; + in = 1; + break; + case 0xEC: /* in (%dx),%al */ + insnlen += 1; + in = 1; + break; + case 0xE6: /* out %al,<next byte> */ + insnlen += 2; + break; + case 0xEE: /* out %al,(%dx) */ + insnlen += 1; + break; + default: + return 0; + } + + if (in) { + /* Lower bit tells is whether it's a 16 or 32 bit access */ + if (insn & 0x1) + lg->regs->eax = 0xFFFFFFFF; + else + lg->regs->eax |= (0xFFFF << shift); + } + lg->regs->eip += insnlen; + return 1; +} + +int lguest_address_ok(const struct lguest *lg, + unsigned long addr, unsigned long len) +{ + return (addr+len) / PAGE_SIZE < lg->pfn_limit && (addr+len >= addr); +} + +/* Just like get_user, but don't let guest access lguest binary. */ +u32 lgread_u32(struct lguest *lg, unsigned long addr) +{ + u32 val = 0; + + /* Don't let them access lguest binary */ + if (!lguest_address_ok(lg, addr, sizeof(val)) + || get_user(val, (u32 __user *)addr) != 0) + kill_guest(lg, "bad read address %#lx", addr); + return val; +} + +void lgwrite_u32(struct lguest *lg, unsigned long addr, u32 val) +{ + if (!lguest_address_ok(lg, addr, sizeof(val)) + || put_user(val, (u32 __user *)addr) != 0) + kill_guest(lg, "bad write address %#lx", addr); +} + +void lgread(struct lguest *lg, void *b, unsigned long addr, unsigned bytes) +{ + if (!lguest_address_ok(lg, addr, bytes) + || copy_from_user(b, (void __user *)addr, bytes) != 0) { + /* copy_from_user should do this, but as we rely on it... */ + memset(b, 0, bytes); + kill_guest(lg, "bad read address %#lx len %u", addr, bytes); + } +} + +void lgwrite(struct lguest *lg, unsigned long addr, const void *b, + unsigned bytes) +{ + if (!lguest_address_ok(lg, addr, bytes) + || copy_to_user((void __user *)addr, b, bytes) != 0) + kill_guest(lg, "bad write address %#lx len %u", addr, bytes); +} + +static void set_ts(void) +{ + u32 cr0; + + cr0 = read_cr0(); + if (!(cr0 & 8)) + write_cr0(cr0|8); +} + +static void copy_in_guest_info(struct lguest *lg, struct lguest_pages *pages) +{ + if (__get_cpu_var(last_guest) != lg || lg->last_pages != pages) { + __get_cpu_var(last_guest) = lg; + lg->last_pages = pages; + lg->changed = CHANGED_ALL; + } + + /* These are pretty cheap, so we do them unconditionally. */ + pages->state.host_cr3 = __pa(current->mm->pgd); + map_switcher_in_guest(lg, pages); + pages->state.guest_tss.esp1 = lg->esp1; + pages->state.guest_tss.ss1 = lg->ss1; + + /* Copy direct trap entries. */ + if (lg->changed & CHANGED_IDT) + copy_traps(lg, pages->state.guest_idt, default_idt_entries); + + /* Copy all GDT entries but the TSS. */ + if (lg->changed & CHANGED_GDT) + copy_gdt(lg, pages->state.guest_gdt); + /* If only the TLS entries have changed, copy them. */ + else if (lg->changed & CHANGED_GDT_TLS) + copy_gdt_tls(lg, pages->state.guest_gdt); + + lg->changed = 0; +} + +static void run_guest_once(struct lguest *lg, struct lguest_pages *pages) +{ + unsigned int clobber; + + copy_in_guest_info(lg, pages); + + /* Put eflags on stack, lcall does rest: suitable for iret return. */ + asm volatile("pushf; lcall *lguest_entry" + : "=a"(clobber), "=b"(clobber) + : "0"(pages), "1"(__pa(lg->pgdirs[lg->pgdidx].pgdir)) + : "memory", "%edx", "%ecx", "%edi", "%esi"); +} + +int run_guest(struct lguest *lg, unsigned long __user *user) +{ + while (!lg->dead) { + unsigned int cr2 = 0; /* Damn gcc */ + + /* Hypercalls first: we might have been out to userspace */ + do_hypercalls(lg); + if (lg->dma_is_pending) { + if (put_user(lg->pending_dma, user) || + put_user(lg->pending_key, user+1)) + return -EFAULT; + return sizeof(unsigned long)*2; + } + + if (signal_pending(current)) + return -ERESTARTSYS; + + /* If Waker set break_out, return to Launcher. */ + if (lg->break_out) + return -EAGAIN; + + maybe_do_interrupt(lg); + + try_to_freeze(); + + if (lg->dead) + break; + + if (lg->halted) { + set_current_state(TASK_INTERRUPTIBLE); + schedule(); + continue; + } + + local_irq_disable(); + + /* Even if *we* don't want FPU trap, guest might... */ + if (lg->ts) + set_ts(); + + /* Don't let Guest do SYSENTER: we can't handle it. */ + if (boot_cpu_has(X86_FEATURE_SEP)) + wrmsr(MSR_IA32_SYSENTER_CS, 0, 0); + + run_guest_once(lg, lguest_pages(raw_smp_processor_id())); + + /* Save cr2 now if we page-faulted. */ + if (lg->regs->trapnum == 14) + cr2 = read_cr2(); + else if (lg->regs->trapnum == 7) + math_state_restore(); + + if (boot_cpu_has(X86_FEATURE_SEP)) + wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0); + local_irq_enable(); + + switch (lg->regs->trapnum) { + case 13: /* We've intercepted a GPF. */ + if (lg->regs->errcode == 0) { + if (emulate_insn(lg)) + continue; + } + break; + case 14: /* We've intercepted a page fault. */ + if (demand_page(lg, cr2, lg->regs->errcode)) + continue; + + /* If lguest_data is NULL, this won't hurt. */ + if (put_user(cr2, &lg->lguest_data->cr2)) + kill_guest(lg, "Writing cr2"); + break; + case 7: /* We've intercepted a Device Not Available fault. */ + /* If they don't want to know, just absorb it. */ + if (!lg->ts) + continue; + break; + case 32 ... 255: /* Real interrupt, fall thru */ + cond_resched(); + case LGUEST_TRAP_ENTRY: /* Handled at top of loop */ + continue; + } + + if (deliver_trap(lg, lg->regs->trapnum)) + continue; + + kill_guest(lg, "unhandled trap %li at %#lx (%#lx)", + lg->regs->trapnum, lg->regs->eip, + lg->regs->trapnum == 14 ? cr2 : lg->regs->errcode); + } + return -ENOENT; +} + +int find_free_guest(void) +{ + unsigned int i; + for (i = 0; i < MAX_LGUEST_GUESTS; i++) + if (!lguests[i].tsk) + return i; + return -1; +} + +static void adjust_pge(void *on) +{ + if (on) + write_cr4(read_cr4() | X86_CR4_PGE); + else + write_cr4(read_cr4() & ~X86_CR4_PGE); +} + +static int __init init(void) +{ + int err; + + if (paravirt_enabled()) { + printk("lguest is afraid of %s\n", paravirt_ops.name); + return -EPERM; + } + + err = map_switcher(); + if (err) + return err; + + err = init_pagetables(switcher_page, SHARED_SWITCHER_PAGES); + if (err) { + unmap_switcher(); + return err; + } + lguest_io_init(); + + err = lguest_device_init(); + if (err) { + free_pagetables(); + unmap_switcher(); + return err; + } + lock_cpu_hotplug(); + if (cpu_has_pge) { /* We have a broader idea of "global". */ + cpu_had_pge = 1; + on_each_cpu(adjust_pge, (void *)0, 0, 1); + clear_bit(X86_FEATURE_PGE, boot_cpu_data.x86_capability); + } + unlock_cpu_hotplug(); + return 0; +} + +static void __exit fini(void) +{ + lguest_device_remove(); + free_pagetables(); + unmap_switcher(); + lock_cpu_hotplug(); + if (cpu_had_pge) { + set_bit(X86_FEATURE_PGE, boot_cpu_data.x86_capability); + on_each_cpu(adjust_pge, (void *)1, 0, 1); + } + unlock_cpu_hotplug(); +} + +module_init(init); +module_exit(fini); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Rusty Russell <rusty@rustcorp.com.au>"); diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c new file mode 100644 index 000000000000..ea52ca451f74 --- /dev/null +++ b/drivers/lguest/hypercalls.c @@ -0,0 +1,192 @@ +/* Actual hypercalls, which allow guests to actually do something. + Copyright (C) 2006 Rusty Russell IBM Corporation + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ +#include <linux/uaccess.h> +#include <linux/syscalls.h> +#include <linux/mm.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <irq_vectors.h> +#include "lg.h" + +static void do_hcall(struct lguest *lg, struct lguest_regs *regs) +{ + switch (regs->eax) { + case LHCALL_FLUSH_ASYNC: + break; + case LHCALL_LGUEST_INIT: + kill_guest(lg, "already have lguest_data"); + break; + case LHCALL_CRASH: { + char msg[128]; + lgread(lg, msg, regs->edx, sizeof(msg)); + msg[sizeof(msg)-1] = '\0'; + kill_guest(lg, "CRASH: %s", msg); + break; + } + case LHCALL_FLUSH_TLB: + if (regs->edx) + guest_pagetable_clear_all(lg); + else + guest_pagetable_flush_user(lg); + break; + case LHCALL_GET_WALLCLOCK: { + struct timespec ts; + ktime_get_real_ts(&ts); + regs->eax = ts.tv_sec; + break; + } + case LHCALL_BIND_DMA: + regs->eax = bind_dma(lg, regs->edx, regs->ebx, + regs->ecx >> 8, regs->ecx & 0xFF); + break; + case LHCALL_SEND_DMA: + send_dma(lg, regs->edx, regs->ebx); + break; + case LHCALL_LOAD_GDT: + load_guest_gdt(lg, regs->edx, regs->ebx); + break; + case LHCALL_LOAD_IDT_ENTRY: + load_guest_idt_entry(lg, regs->edx, regs->ebx, regs->ecx); + break; + case LHCALL_NEW_PGTABLE: + guest_new_pagetable(lg, regs->edx); + break; + case LHCALL_SET_STACK: + guest_set_stack(lg, regs->edx, regs->ebx, regs->ecx); + break; + case LHCALL_SET_PTE: + guest_set_pte(lg, regs->edx, regs->ebx, mkgpte(regs->ecx)); + break; + case LHCALL_SET_PMD: + guest_set_pmd(lg, regs->edx, regs->ebx); + break; + case LHCALL_LOAD_TLS: + guest_load_tls(lg, regs->edx); + break; + case LHCALL_SET_CLOCKEVENT: + guest_set_clockevent(lg, regs->edx); + break; + case LHCALL_TS: + lg->ts = regs->edx; + break; + case LHCALL_HALT: + lg->halted = 1; + break; + default: + kill_guest(lg, "Bad hypercall %li\n", regs->eax); + } +} + +/* We always do queued calls before actual hypercall. */ +static void do_async_hcalls(struct lguest *lg) +{ + unsigned int i; + u8 st[LHCALL_RING_SIZE]; + + if (copy_from_user(&st, &lg->lguest_data->hcall_status, sizeof(st))) + return; + + for (i = 0; i < ARRAY_SIZE(st); i++) { + struct lguest_regs regs; + unsigned int n = lg->next_hcall; + + if (st[n] == 0xFF) + break; + + if (++lg->next_hcall == LHCALL_RING_SIZE) + lg->next_hcall = 0; + + if (get_user(regs.eax, &lg->lguest_data->hcalls[n].eax) + || get_user(regs.edx, &lg->lguest_data->hcalls[n].edx) + || get_user(regs.ecx, &lg->lguest_data->hcalls[n].ecx) + || get_user(regs.ebx, &lg->lguest_data->hcalls[n].ebx)) { + kill_guest(lg, "Fetching async hypercalls"); + break; + } + + do_hcall(lg, ®s); + if (put_user(0xFF, &lg->lguest_data->hcall_status[n])) { + kill_guest(lg, "Writing result for async hypercall"); + break; + } + + if (lg->dma_is_pending) + break; + } +} + +static void initialize(struct lguest *lg) +{ + u32 tsc_speed; + + if (lg->regs->eax != LHCALL_LGUEST_INIT) { + kill_guest(lg, "hypercall %li before LGUEST_INIT", + lg->regs->eax); + return; + } + + /* We only tell the guest to use the TSC if it's reliable. */ + if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC) && !check_tsc_unstable()) + tsc_speed = tsc_khz; + else + tsc_speed = 0; + + lg->lguest_data = (struct lguest_data __user *)lg->regs->edx; + /* We check here so we can simply copy_to_user/from_user */ + if (!lguest_address_ok(lg, lg->regs->edx, sizeof(*lg->lguest_data))) { + kill_guest(lg, "bad guest page %p", lg->lguest_data); + return; + } + if (get_user(lg->noirq_start, &lg->lguest_data->noirq_start) + || get_user(lg->noirq_end, &lg->lguest_data->noirq_end) + /* We reserve the top pgd entry. */ + || put_user(4U*1024*1024, &lg->lguest_data->reserve_mem) + || put_user(tsc_speed, &lg->lguest_data->tsc_khz) + || put_user(lg->guestid, &lg->lguest_data->guestid)) + kill_guest(lg, "bad guest page %p", lg->lguest_data); + + /* This is the one case where the above accesses might have + * been the first write to a Guest page. This may have caused + * a copy-on-write fault, but the Guest might be referring to + * the old (read-only) page. */ + guest_pagetable_clear_all(lg); +} + +/* Even if we go out to userspace and come back, we don't want to do + * the hypercall again. */ +static void clear_hcall(struct lguest *lg) +{ + lg->regs->trapnum = 255; +} + +void do_hypercalls(struct lguest *lg) +{ + if (unlikely(!lg->lguest_data)) { + if (lg->regs->trapnum == LGUEST_TRAP_ENTRY) { + initialize(lg); + clear_hcall(lg); + } + return; + } + + do_async_hcalls(lg); + if (!lg->dma_is_pending && lg->regs->trapnum == LGUEST_TRAP_ENTRY) { + do_hcall(lg, lg->regs); + clear_hcall(lg); + } +} diff --git a/drivers/lguest/interrupts_and_traps.c b/drivers/lguest/interrupts_and_traps.c new file mode 100644 index 000000000000..d9de5bbc613f --- /dev/null +++ b/drivers/lguest/interrupts_and_traps.c @@ -0,0 +1,268 @@ +#include <linux/uaccess.h> +#include "lg.h" + +static unsigned long idt_address(u32 lo, u32 hi) +{ + return (lo & 0x0000FFFF) | (hi & 0xFFFF0000); +} + +static int idt_type(u32 lo, u32 hi) +{ + return (hi >> 8) & 0xF; +} + +static int idt_present(u32 lo, u32 hi) +{ + return (hi & 0x8000); +} + +static void push_guest_stack(struct lguest *lg, unsigned long *gstack, u32 val) +{ + *gstack -= 4; + lgwrite_u32(lg, *gstack, val); +} + +static void set_guest_interrupt(struct lguest *lg, u32 lo, u32 hi, int has_err) +{ + unsigned long gstack; + u32 eflags, ss, irq_enable; + + /* If they want a ring change, we use new stack and push old ss/esp */ + if ((lg->regs->ss&0x3) != GUEST_PL) { + gstack = guest_pa(lg, lg->esp1); + ss = lg->ss1; + push_guest_stack(lg, &gstack, lg->regs->ss); + push_guest_stack(lg, &gstack, lg->regs->esp); + } else { + gstack = guest_pa(lg, lg->regs->esp); + ss = lg->regs->ss; + } + + /* We use IF bit in eflags to indicate whether irqs were disabled + (it's always 0, since irqs are enabled when guest is running). */ + eflags = lg->regs->eflags; + if (get_user(irq_enable, &lg->lguest_data->irq_enabled)) + irq_enable = 0; + eflags |= (irq_enable & X86_EFLAGS_IF); + + push_guest_stack(lg, &gstack, eflags); + push_guest_stack(lg, &gstack, lg->regs->cs); + push_guest_stack(lg, &gstack, lg->regs->eip); + + if (has_err) + push_guest_stack(lg, &gstack, lg->regs->errcode); + + /* Change the real stack so switcher returns to trap handler */ + lg->regs->ss = ss; + lg->regs->esp = gstack + lg->page_offset; + lg->regs->cs = (__KERNEL_CS|GUEST_PL); + lg->regs->eip = idt_address(lo, hi); + + /* Disable interrupts for an interrupt gate. */ + if (idt_type(lo, hi) == 0xE) + if (put_user(0, &lg->lguest_data->irq_enabled)) + kill_guest(lg, "Disabling interrupts"); +} + +void maybe_do_interrupt(struct lguest *lg) +{ + unsigned int irq; + DECLARE_BITMAP(blk, LGUEST_IRQS); + struct desc_struct *idt; + + if (!lg->lguest_data) + return; + + /* Mask out any interrupts they have blocked. */ + if (copy_from_user(&blk, lg->lguest_data->blocked_interrupts, + sizeof(blk))) + return; + + bitmap_andnot(blk, lg->irqs_pending, blk, LGUEST_IRQS); + + irq = find_first_bit(blk, LGUEST_IRQS); + if (irq >= LGUEST_IRQS) + return; + + if (lg->regs->eip >= lg->noirq_start && lg->regs->eip < lg->noirq_end) + return; + + /* If they're halted, we re-enable interrupts. */ + if (lg->halted) { + /* Re-enable interrupts. */ + if (put_user(X86_EFLAGS_IF, &lg->lguest_data->irq_enabled)) + kill_guest(lg, "Re-enabling interrupts"); + lg->halted = 0; + } else { + /* Maybe they have interrupts disabled? */ + u32 irq_enabled; + if (get_user(irq_enabled, &lg->lguest_data->irq_enabled)) + irq_enabled = 0; + if (!irq_enabled) + return; + } + + idt = &lg->idt[FIRST_EXTERNAL_VECTOR+irq]; + if (idt_present(idt->a, idt->b)) { + clear_bit(irq, lg->irqs_pending); + set_guest_interrupt(lg, idt->a, idt->b, 0); + } +} + +static int has_err(unsigned int trap) +{ + return (trap == 8 || (trap >= 10 && trap <= 14) || trap == 17); +} + +int deliver_trap(struct lguest *lg, unsigned int num) +{ + u32 lo = lg->idt[num].a, hi = lg->idt[num].b; + + if (!idt_present(lo, hi)) + return 0; + set_guest_interrupt(lg, lo, hi, has_err(num)); + return 1; +} + +static int direct_trap(const struct lguest *lg, + const struct desc_struct *trap, + unsigned int num) +{ + /* Hardware interrupts don't go to guest (except syscall). */ + if (num >= FIRST_EXTERNAL_VECTOR && num != SYSCALL_VECTOR) + return 0; + + /* We intercept page fault (demand shadow paging & cr2 saving) + protection fault (in/out emulation) and device not + available (TS handling), and hypercall */ + if (num == 14 || num == 13 || num == 7 || num == LGUEST_TRAP_ENTRY) + return 0; + + /* Interrupt gates (0xE) or not present (0x0) can't go direct. */ + return idt_type(trap->a, trap->b) == 0xF; +} + +void pin_stack_pages(struct lguest *lg) +{ + unsigned int i; + + for (i = 0; i < lg->stack_pages; i++) + pin_page(lg, lg->esp1 - i * PAGE_SIZE); +} + +void guest_set_stack(struct lguest *lg, u32 seg, u32 esp, unsigned int pages) +{ + /* You cannot have a stack segment with priv level 0. */ + if ((seg & 0x3) != GUEST_PL) + kill_guest(lg, "bad stack segment %i", seg); + if (pages > 2) + kill_guest(lg, "bad stack pages %u", pages); + lg->ss1 = seg; + lg->esp1 = esp; + lg->stack_pages = pages; + pin_stack_pages(lg); +} + +/* Set up trap in IDT. */ +static void set_trap(struct lguest *lg, struct desc_struct *trap, + unsigned int num, u32 lo, u32 hi) +{ + u8 type = idt_type(lo, hi); + + if (!idt_present(lo, hi)) { + trap->a = trap->b = 0; + return; + } + + if (type != 0xE && type != 0xF) + kill_guest(lg, "bad IDT type %i", type); + + trap->a = ((__KERNEL_CS|GUEST_PL)<<16) | (lo&0x0000FFFF); + trap->b = (hi&0xFFFFEF00); +} + +void load_guest_idt_entry(struct lguest *lg, unsigned int num, u32 lo, u32 hi) +{ + /* Guest never handles: NMI, doublefault, hypercall, spurious irq. */ + if (num == 2 || num == 8 || num == 15 || num == LGUEST_TRAP_ENTRY) + return; + + lg->changed |= CHANGED_IDT; + if (num < ARRAY_SIZE(lg->idt)) + set_trap(lg, &lg->idt[num], num, lo, hi); + else if (num == SYSCALL_VECTOR) + set_trap(lg, &lg->syscall_idt, num, lo, hi); +} + +static void default_idt_entry(struct desc_struct *idt, + int trap, + const unsigned long handler) +{ + u32 flags = 0x8e00; + + /* They can't "int" into any of them except hypercall. */ + if (trap == LGUEST_TRAP_ENTRY) + flags |= (GUEST_PL << 13); + + idt->a = (LGUEST_CS<<16) | (handler&0x0000FFFF); + idt->b = (handler&0xFFFF0000) | flags; +} + +void setup_default_idt_entries(struct lguest_ro_state *state, + const unsigned long *def) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(state->guest_idt); i++) + default_idt_entry(&state->guest_idt[i], i, def[i]); +} + +void copy_traps(const struct lguest *lg, struct desc_struct *idt, + const unsigned long *def) +{ + unsigned int i; + + /* All hardware interrupts are same whatever the guest: only the + * traps might be different. */ + for (i = 0; i < FIRST_EXTERNAL_VECTOR; i++) { + if (direct_trap(lg, &lg->idt[i], i)) + idt[i] = lg->idt[i]; + else + default_idt_entry(&idt[i], i, def[i]); + } + i = SYSCALL_VECTOR; + if (direct_trap(lg, &lg->syscall_idt, i)) + idt[i] = lg->syscall_idt; + else + default_idt_entry(&idt[i], i, def[i]); +} + +void guest_set_clockevent(struct lguest *lg, unsigned long delta) +{ + ktime_t expires; + + if (unlikely(delta == 0)) { + /* Clock event device is shutting down. */ + hrtimer_cancel(&lg->hrt); + return; + } + + expires = ktime_add_ns(ktime_get_real(), delta); + hrtimer_start(&lg->hrt, expires, HRTIMER_MODE_ABS); +} + +static enum hrtimer_restart clockdev_fn(struct hrtimer *timer) +{ + struct lguest *lg = container_of(timer, struct lguest, hrt); + + set_bit(0, lg->irqs_pending); + if (lg->halted) + wake_up_process(lg->tsk); + return HRTIMER_NORESTART; +} + +void init_clockdev(struct lguest *lg) +{ + hrtimer_init(&lg->hrt, CLOCK_REALTIME, HRTIMER_MODE_ABS); + lg->hrt.function = clockdev_fn; +} diff --git a/drivers/lguest/io.c b/drivers/lguest/io.c new file mode 100644 index 000000000000..06bdba2337ef --- /dev/null +++ b/drivers/lguest/io.c @@ -0,0 +1,399 @@ +/* Simple I/O model for guests, based on shared memory. + * Copyright (C) 2006 Rusty Russell IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/types.h> +#include <linux/futex.h> +#include <linux/jhash.h> +#include <linux/mm.h> +#include <linux/highmem.h> +#include <linux/uaccess.h> +#include "lg.h" + +static struct list_head dma_hash[61]; + +void lguest_io_init(void) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(dma_hash); i++) + INIT_LIST_HEAD(&dma_hash[i]); +} + +/* FIXME: allow multi-page lengths. */ +static int check_dma_list(struct lguest *lg, const struct lguest_dma *dma) +{ + unsigned int i; + + for (i = 0; i < LGUEST_MAX_DMA_SECTIONS; i++) { + if (!dma->len[i]) + return 1; + if (!lguest_address_ok(lg, dma->addr[i], dma->len[i])) + goto kill; + if (dma->len[i] > PAGE_SIZE) + goto kill; + /* We could do over a page, but is it worth it? */ + if ((dma->addr[i] % PAGE_SIZE) + dma->len[i] > PAGE_SIZE) + goto kill; + } + return 1; + +kill: + kill_guest(lg, "bad DMA entry: %u@%#lx", dma->len[i], dma->addr[i]); + return 0; +} + +static unsigned int hash(const union futex_key *key) +{ + return jhash2((u32*)&key->both.word, + (sizeof(key->both.word)+sizeof(key->both.ptr))/4, + key->both.offset) + % ARRAY_SIZE(dma_hash); +} + +static inline int key_eq(const union futex_key *a, const union futex_key *b) +{ + return (a->both.word == b->both.word + && a->both.ptr == b->both.ptr + && a->both.offset == b->both.offset); +} + +/* Must hold read lock on dmainfo owner's current->mm->mmap_sem */ +static void unlink_dma(struct lguest_dma_info *dmainfo) +{ + BUG_ON(!mutex_is_locked(&lguest_lock)); + dmainfo->interrupt = 0; + list_del(&dmainfo->list); + drop_futex_key_refs(&dmainfo->key); +} + +static int unbind_dma(struct lguest *lg, + const union futex_key *key, + unsigned long dmas) +{ + int i, ret = 0; + + for (i = 0; i < LGUEST_MAX_DMA; i++) { + if (key_eq(key, &lg->dma[i].key) && dmas == lg->dma[i].dmas) { + unlink_dma(&lg->dma[i]); + ret = 1; + break; + } + } + return ret; +} + +int bind_dma(struct lguest *lg, + unsigned long ukey, unsigned long dmas, u16 numdmas, u8 interrupt) +{ + unsigned int i; + int ret = 0; + union futex_key key; + struct rw_semaphore *fshared = ¤t->mm->mmap_sem; + + if (interrupt >= LGUEST_IRQS) + return 0; + + mutex_lock(&lguest_lock); + down_read(fshared); + if (get_futex_key((u32 __user *)ukey, fshared, &key) != 0) { + kill_guest(lg, "bad dma key %#lx", ukey); + goto unlock; + } + get_futex_key_refs(&key); + + if (interrupt == 0) + ret = unbind_dma(lg, &key, dmas); + else { + for (i = 0; i < LGUEST_MAX_DMA; i++) { + if (lg->dma[i].interrupt) + continue; + + lg->dma[i].dmas = dmas; + lg->dma[i].num_dmas = numdmas; + lg->dma[i].next_dma = 0; + lg->dma[i].key = key; + lg->dma[i].guestid = lg->guestid; + lg->dma[i].interrupt = interrupt; + list_add(&lg->dma[i].list, &dma_hash[hash(&key)]); + ret = 1; + goto unlock; + } + } + drop_futex_key_refs(&key); +unlock: + up_read(fshared); + mutex_unlock(&lguest_lock); + return ret; +} + +/* lgread from another guest */ +static int lgread_other(struct lguest *lg, + void *buf, u32 addr, unsigned bytes) +{ + if (!lguest_address_ok(lg, addr, bytes) + || access_process_vm(lg->tsk, addr, buf, bytes, 0) != bytes) { + memset(buf, 0, bytes); + kill_guest(lg, "bad address in registered DMA struct"); + return 0; + } + return 1; +} + +/* lgwrite to another guest */ +static int lgwrite_other(struct lguest *lg, u32 addr, + const void *buf, unsigned bytes) +{ + if (!lguest_address_ok(lg, addr, bytes) + || (access_process_vm(lg->tsk, addr, (void *)buf, bytes, 1) + != bytes)) { + kill_guest(lg, "bad address writing to registered DMA"); + return 0; + } + return 1; +} + +static u32 copy_data(struct lguest *srclg, + const struct lguest_dma *src, + const struct lguest_dma *dst, + struct page *pages[]) +{ + unsigned int totlen, si, di, srcoff, dstoff; + void *maddr = NULL; + + totlen = 0; + si = di = 0; + srcoff = dstoff = 0; + while (si < LGUEST_MAX_DMA_SECTIONS && src->len[si] + && di < LGUEST_MAX_DMA_SECTIONS && dst->len[di]) { + u32 len = min(src->len[si] - srcoff, dst->len[di] - dstoff); + + if (!maddr) + maddr = kmap(pages[di]); + + /* FIXME: This is not completely portable, since + archs do different things for copy_to_user_page. */ + if (copy_from_user(maddr + (dst->addr[di] + dstoff)%PAGE_SIZE, + (void *__user)src->addr[si], len) != 0) { + kill_guest(srclg, "bad address in sending DMA"); + totlen = 0; + break; + } + + totlen += len; + srcoff += len; + dstoff += len; + if (srcoff == src->len[si]) { + si++; + srcoff = 0; + } + if (dstoff == dst->len[di]) { + kunmap(pages[di]); + maddr = NULL; + di++; + dstoff = 0; + } + } + + if (maddr) + kunmap(pages[di]); + + return totlen; +} + +/* Src is us, ie. current. */ +static u32 do_dma(struct lguest *srclg, const struct lguest_dma *src, + struct lguest *dstlg, const struct lguest_dma *dst) +{ + int i; + u32 ret; + struct page *pages[LGUEST_MAX_DMA_SECTIONS]; + + if (!check_dma_list(dstlg, dst) || !check_dma_list(srclg, src)) + return 0; + + /* First get the destination pages */ + for (i = 0; i < LGUEST_MAX_DMA_SECTIONS; i++) { + if (dst->len[i] == 0) + break; + if (get_user_pages(dstlg->tsk, dstlg->mm, + dst->addr[i], 1, 1, 1, pages+i, NULL) + != 1) { + kill_guest(dstlg, "Error mapping DMA pages"); + ret = 0; + goto drop_pages; + } + } + + /* Now copy until we run out of src or dst. */ + ret = copy_data(srclg, src, dst, pages); + +drop_pages: + while (--i >= 0) + put_page(pages[i]); + return ret; +} + +static int dma_transfer(struct lguest *srclg, + unsigned long udma, + struct lguest_dma_info *dst) +{ + struct lguest_dma dst_dma, src_dma; + struct lguest *dstlg; + u32 i, dma = 0; + + dstlg = &lguests[dst->guestid]; + /* Get our dma list. */ + lgread(srclg, &src_dma, udma, sizeof(src_dma)); + + /* We can't deadlock against them dmaing to us, because this + * is all under the lguest_lock. */ + down_read(&dstlg->mm->mmap_sem); + + for (i = 0; i < dst->num_dmas; i++) { + dma = (dst->next_dma + i) % dst->num_dmas; + if (!lgread_other(dstlg, &dst_dma, + dst->dmas + dma * sizeof(struct lguest_dma), + sizeof(dst_dma))) { + goto fail; + } + if (!dst_dma.used_len) + break; + } + if (i != dst->num_dmas) { + unsigned long used_lenp; + unsigned int ret; + + ret = do_dma(srclg, &src_dma, dstlg, &dst_dma); + /* Put used length in src. */ + lgwrite_u32(srclg, + udma+offsetof(struct lguest_dma, used_len), ret); + if (ret == 0 && src_dma.len[0] != 0) + goto fail; + + /* Make sure destination sees contents before length. */ + wmb(); + used_lenp = dst->dmas + + dma * sizeof(struct lguest_dma) + + offsetof(struct lguest_dma, used_len); + lgwrite_other(dstlg, used_lenp, &ret, sizeof(ret)); + dst->next_dma++; + } + up_read(&dstlg->mm->mmap_sem); + + /* Do this last so dst doesn't simply sleep on lock. */ + set_bit(dst->interrupt, dstlg->irqs_pending); + wake_up_process(dstlg->tsk); + return i == dst->num_dmas; + +fail: + up_read(&dstlg->mm->mmap_sem); + return 0; +} + +void send_dma(struct lguest *lg, unsigned long ukey, unsigned long udma) +{ + union futex_key key; + int empty = 0; + struct rw_semaphore *fshared = ¤t->mm->mmap_sem; + +again: + mutex_lock(&lguest_lock); + down_read(fshared); + if (get_futex_key((u32 __user *)ukey, fshared, &key) != 0) { + kill_guest(lg, "bad sending DMA key"); + goto unlock; + } + /* Shared mapping? Look for other guests... */ + if (key.shared.offset & 1) { + struct lguest_dma_info *i; + list_for_each_entry(i, &dma_hash[hash(&key)], list) { + if (i->guestid == lg->guestid) + continue; + if (!key_eq(&key, &i->key)) + continue; + + empty += dma_transfer(lg, udma, i); + break; + } + if (empty == 1) { + /* Give any recipients one chance to restock. */ + up_read(¤t->mm->mmap_sem); + mutex_unlock(&lguest_lock); + empty++; + goto again; + } + } else { + /* Private mapping: tell our userspace. */ + lg->dma_is_pending = 1; + lg->pending_dma = udma; + lg->pending_key = ukey; + } +unlock: + up_read(fshared); + mutex_unlock(&lguest_lock); +} + +void release_all_dma(struct lguest *lg) +{ + unsigned int i; + + BUG_ON(!mutex_is_locked(&lguest_lock)); + + down_read(&lg->mm->mmap_sem); + for (i = 0; i < LGUEST_MAX_DMA; i++) { + if (lg->dma[i].interrupt) + unlink_dma(&lg->dma[i]); + } + up_read(&lg->mm->mmap_sem); +} + +/* Userspace wants a dma buffer from this guest. */ +unsigned long get_dma_buffer(struct lguest *lg, + unsigned long ukey, unsigned long *interrupt) +{ + unsigned long ret = 0; + union futex_key key; + struct lguest_dma_info *i; + struct rw_semaphore *fshared = ¤t->mm->mmap_sem; + + mutex_lock(&lguest_lock); + down_read(fshared); + if (get_futex_key((u32 __user *)ukey, fshared, &key) != 0) { + kill_guest(lg, "bad registered DMA buffer"); + goto unlock; + } + list_for_each_entry(i, &dma_hash[hash(&key)], list) { + if (key_eq(&key, &i->key) && i->guestid == lg->guestid) { + unsigned int j; + for (j = 0; j < i->num_dmas; j++) { + struct lguest_dma dma; + + ret = i->dmas + j * sizeof(struct lguest_dma); + lgread(lg, &dma, ret, sizeof(dma)); + if (dma.used_len == 0) + break; + } + *interrupt = i->interrupt; + break; + } + } +unlock: + up_read(fshared); + mutex_unlock(&lguest_lock); + return ret; +} + diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h new file mode 100644 index 000000000000..3e2ddfbc816e --- /dev/null +++ b/drivers/lguest/lg.h @@ -0,0 +1,261 @@ +#ifndef _LGUEST_H +#define _LGUEST_H + +#include <asm/desc.h> + +#define GDT_ENTRY_LGUEST_CS 10 +#define GDT_ENTRY_LGUEST_DS 11 +#define LGUEST_CS (GDT_ENTRY_LGUEST_CS * 8) +#define LGUEST_DS (GDT_ENTRY_LGUEST_DS * 8) + +#ifndef __ASSEMBLY__ +#include <linux/types.h> +#include <linux/init.h> +#include <linux/stringify.h> +#include <linux/binfmts.h> +#include <linux/futex.h> +#include <linux/lguest.h> +#include <linux/lguest_launcher.h> +#include <linux/wait.h> +#include <linux/err.h> +#include <asm/semaphore.h> +#include "irq_vectors.h" + +#define GUEST_PL 1 + +struct lguest_regs +{ + /* Manually saved part. */ + unsigned long ebx, ecx, edx; + unsigned long esi, edi, ebp; + unsigned long gs; + unsigned long eax; + unsigned long fs, ds, es; + unsigned long trapnum, errcode; + /* Trap pushed part */ + unsigned long eip; + unsigned long cs; + unsigned long eflags; + unsigned long esp; + unsigned long ss; +}; + +void free_pagetables(void); +int init_pagetables(struct page **switcher_page, unsigned int pages); + +/* Full 4G segment descriptors, suitable for CS and DS. */ +#define FULL_EXEC_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9b00}) +#define FULL_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9300}) + +struct lguest_dma_info +{ + struct list_head list; + union futex_key key; + unsigned long dmas; + u16 next_dma; + u16 num_dmas; + u16 guestid; + u8 interrupt; /* 0 when not registered */ +}; + +/* We have separate types for the guest's ptes & pgds and the shadow ptes & + * pgds. Since this host might use three-level pagetables and the guest and + * shadow pagetables don't, we can't use the normal pte_t/pgd_t. */ +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} spgd_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} spte_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} gpgd_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} gpte_t; +#define mkgpte(_val) ((gpte_t){.raw.val = _val}) +#define mkgpgd(_val) ((gpgd_t){.raw.val = _val}) + +struct pgdir +{ + unsigned long cr3; + spgd_t *pgdir; +}; + +/* This is a guest-specific page (mapped ro) into the guest. */ +struct lguest_ro_state +{ + /* Host information we need to restore when we switch back. */ + u32 host_cr3; + struct Xgt_desc_struct host_idt_desc; + struct Xgt_desc_struct host_gdt_desc; + u32 host_sp; + + /* Fields which are used when guest is running. */ + struct Xgt_desc_struct guest_idt_desc; + struct Xgt_desc_struct guest_gdt_desc; + struct i386_hw_tss guest_tss; + struct desc_struct guest_idt[IDT_ENTRIES]; + struct desc_struct guest_gdt[GDT_ENTRIES]; +}; + +/* We have two pages shared with guests, per cpu. */ +struct lguest_pages +{ + /* This is the stack page mapped rw in guest */ + char spare[PAGE_SIZE - sizeof(struct lguest_regs)]; + struct lguest_regs regs; + + /* This is the host state & guest descriptor page, ro in guest */ + struct lguest_ro_state state; +} __attribute__((aligned(PAGE_SIZE))); + +#define CHANGED_IDT 1 +#define CHANGED_GDT 2 +#define CHANGED_GDT_TLS 4 /* Actually a subset of CHANGED_GDT */ +#define CHANGED_ALL 3 + +/* The private info the thread maintains about the guest. */ +struct lguest +{ + /* At end of a page shared mapped over lguest_pages in guest. */ + unsigned long regs_page; + struct lguest_regs *regs; + struct lguest_data __user *lguest_data; + struct task_struct *tsk; + struct mm_struct *mm; /* == tsk->mm, but that becomes NULL on exit */ + u16 guestid; + u32 pfn_limit; + u32 page_offset; + u32 cr2; + int halted; + int ts; + u32 next_hcall; + u32 esp1; + u8 ss1; + + /* Do we need to stop what we're doing and return to userspace? */ + int break_out; + wait_queue_head_t break_wq; + + /* Bitmap of what has changed: see CHANGED_* above. */ + int changed; + struct lguest_pages *last_pages; + + /* We keep a small number of these. */ + u32 pgdidx; + struct pgdir pgdirs[4]; + + /* Cached wakeup: we hold a reference to this task. */ + struct task_struct *wake; + + unsigned long noirq_start, noirq_end; + int dma_is_pending; + unsigned long pending_dma; /* struct lguest_dma */ + unsigned long pending_key; /* address they're sending to */ + + unsigned int stack_pages; + u32 tsc_khz; + + struct lguest_dma_info dma[LGUEST_MAX_DMA]; + + /* Dead? */ + const char *dead; + + /* The GDT entries copied into lguest_ro_state when running. */ + struct desc_struct gdt[GDT_ENTRIES]; + + /* The IDT entries: some copied into lguest_ro_state when running. */ + struct desc_struct idt[FIRST_EXTERNAL_VECTOR+LGUEST_IRQS]; + struct desc_struct syscall_idt; + + /* Virtual clock device */ + struct hrtimer hrt; + + /* Pending virtual interrupts */ + DECLARE_BITMAP(irqs_pending, LGUEST_IRQS); +}; + +extern struct lguest lguests[]; +extern struct mutex lguest_lock; + +/* core.c: */ +u32 lgread_u32(struct lguest *lg, unsigned long addr); +void lgwrite_u32(struct lguest *lg, unsigned long addr, u32 val); +void lgread(struct lguest *lg, void *buf, unsigned long addr, unsigned len); +void lgwrite(struct lguest *lg, unsigned long, const void *buf, unsigned len); +int find_free_guest(void); +int lguest_address_ok(const struct lguest *lg, + unsigned long addr, unsigned long len); +int run_guest(struct lguest *lg, unsigned long __user *user); + + +/* interrupts_and_traps.c: */ +void maybe_do_interrupt(struct lguest *lg); +int deliver_trap(struct lguest *lg, unsigned int num); +void load_guest_idt_entry(struct lguest *lg, unsigned int i, u32 low, u32 hi); +void guest_set_stack(struct lguest *lg, u32 seg, u32 esp, unsigned int pages); +void pin_stack_pages(struct lguest *lg); +void setup_default_idt_entries(struct lguest_ro_state *state, + const unsigned long *def); +void copy_traps(const struct lguest *lg, struct desc_struct *idt, + const unsigned long *def); +void guest_set_clockevent(struct lguest *lg, unsigned long delta); +void init_clockdev(struct lguest *lg); + +/* segments.c: */ +void setup_default_gdt_entries(struct lguest_ro_state *state); +void setup_guest_gdt(struct lguest *lg); +void load_guest_gdt(struct lguest *lg, unsigned long table, u32 num); +void guest_load_tls(struct lguest *lg, unsigned long tls_array); +void copy_gdt(const struct lguest *lg, struct desc_struct *gdt); +void copy_gdt_tls(const struct lguest *lg, struct desc_struct *gdt); + +/* page_tables.c: */ +int init_guest_pagetable(struct lguest *lg, unsigned long pgtable); +void free_guest_pagetable(struct lguest *lg); +void guest_new_pagetable(struct lguest *lg, unsigned long pgtable); +void guest_set_pmd(struct lguest *lg, unsigned long cr3, u32 i); +void guest_pagetable_clear_all(struct lguest *lg); +void guest_pagetable_flush_user(struct lguest *lg); +void guest_set_pte(struct lguest *lg, unsigned long cr3, + unsigned long vaddr, gpte_t val); +void map_switcher_in_guest(struct lguest *lg, struct lguest_pages *pages); +int demand_page(struct lguest *info, unsigned long cr2, int errcode); +void pin_page(struct lguest *lg, unsigned long vaddr); + +/* lguest_user.c: */ +int lguest_device_init(void); +void lguest_device_remove(void); + +/* io.c: */ +void lguest_io_init(void); +int bind_dma(struct lguest *lg, + unsigned long key, unsigned long udma, u16 numdmas, u8 interrupt); +void send_dma(struct lguest *info, unsigned long key, unsigned long udma); +void release_all_dma(struct lguest *lg); +unsigned long get_dma_buffer(struct lguest *lg, unsigned long key, + unsigned long *interrupt); + +/* hypercalls.c: */ +void do_hypercalls(struct lguest *lg); + +#define kill_guest(lg, fmt...) \ +do { \ + if (!(lg)->dead) { \ + (lg)->dead = kasprintf(GFP_ATOMIC, fmt); \ + if (!(lg)->dead) \ + (lg)->dead = ERR_PTR(-ENOMEM); \ + } \ +} while(0) + +static inline unsigned long guest_pa(struct lguest *lg, unsigned long vaddr) +{ + return vaddr - lg->page_offset; +} +#endif /* __ASSEMBLY__ */ +#endif /* _LGUEST_H */ diff --git a/drivers/lguest/lguest.c b/drivers/lguest/lguest.c new file mode 100644 index 000000000000..b9a58b78c990 --- /dev/null +++ b/drivers/lguest/lguest.c @@ -0,0 +1,621 @@ +/* + * Lguest specific paravirt-ops implementation + * + * Copyright (C) 2006, Rusty Russell <rusty@rustcorp.com.au> IBM Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include <linux/kernel.h> +#include <linux/start_kernel.h> +#include <linux/string.h> +#include <linux/console.h> +#include <linux/screen_info.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> +#include <linux/lguest.h> +#include <linux/lguest_launcher.h> +#include <linux/lguest_bus.h> +#include <asm/paravirt.h> +#include <asm/param.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/desc.h> +#include <asm/setup.h> +#include <asm/e820.h> +#include <asm/mce.h> +#include <asm/io.h> +//#include <asm/sched-clock.h> + +/* Declarations for definitions in lguest_guest.S */ +extern char lguest_noirq_start[], lguest_noirq_end[]; +extern const char lgstart_cli[], lgend_cli[]; +extern const char lgstart_sti[], lgend_sti[]; +extern const char lgstart_popf[], lgend_popf[]; +extern const char lgstart_pushf[], lgend_pushf[]; +extern const char lgstart_iret[], lgend_iret[]; +extern void lguest_iret(void); + +struct lguest_data lguest_data = { + .hcall_status = { [0 ... LHCALL_RING_SIZE-1] = 0xFF }, + .noirq_start = (u32)lguest_noirq_start, + .noirq_end = (u32)lguest_noirq_end, + .blocked_interrupts = { 1 }, /* Block timer interrupts */ +}; +struct lguest_device_desc *lguest_devices; + +static enum paravirt_lazy_mode lazy_mode; +static void lguest_lazy_mode(enum paravirt_lazy_mode mode) +{ + if (mode == PARAVIRT_LAZY_FLUSH) { + if (unlikely(lazy_mode != PARAVIRT_LAZY_NONE)) + hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0); + } else { + lazy_mode = mode; + if (mode == PARAVIRT_LAZY_NONE) + hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0); + } +} + +static void lazy_hcall(unsigned long call, + unsigned long arg1, + unsigned long arg2, + unsigned long arg3) +{ + if (lazy_mode == PARAVIRT_LAZY_NONE) + hcall(call, arg1, arg2, arg3); + else + async_hcall(call, arg1, arg2, arg3); +} + +void async_hcall(unsigned long call, + unsigned long arg1, unsigned long arg2, unsigned long arg3) +{ + /* Note: This code assumes we're uniprocessor. */ + static unsigned int next_call; + unsigned long flags; + + local_irq_save(flags); + if (lguest_data.hcall_status[next_call] != 0xFF) { + /* Table full, so do normal hcall which will flush table. */ + hcall(call, arg1, arg2, arg3); + } else { + lguest_data.hcalls[next_call].eax = call; + lguest_data.hcalls[next_call].edx = arg1; + lguest_data.hcalls[next_call].ebx = arg2; + lguest_data.hcalls[next_call].ecx = arg3; + /* Make sure host sees arguments before "valid" flag. */ + wmb(); + lguest_data.hcall_status[next_call] = 0; + if (++next_call == LHCALL_RING_SIZE) + next_call = 0; + } + local_irq_restore(flags); +} + +void lguest_send_dma(unsigned long key, struct lguest_dma *dma) +{ + dma->used_len = 0; + hcall(LHCALL_SEND_DMA, key, __pa(dma), 0); +} + +int lguest_bind_dma(unsigned long key, struct lguest_dma *dmas, + unsigned int num, u8 irq) +{ + if (!hcall(LHCALL_BIND_DMA, key, __pa(dmas), (num << 8) | irq)) + return -ENOMEM; + return 0; +} + +void lguest_unbind_dma(unsigned long key, struct lguest_dma *dmas) +{ + hcall(LHCALL_BIND_DMA, key, __pa(dmas), 0); +} + +/* For guests, device memory can be used as normal memory, so we cast away the + * __iomem to quieten sparse. */ +void *lguest_map(unsigned long phys_addr, unsigned long pages) +{ + return (__force void *)ioremap(phys_addr, PAGE_SIZE*pages); +} + +void lguest_unmap(void *addr) +{ + iounmap((__force void __iomem *)addr); +} + +static unsigned long save_fl(void) +{ + return lguest_data.irq_enabled; +} + +static void restore_fl(unsigned long flags) +{ + /* FIXME: Check if interrupt pending... */ + lguest_data.irq_enabled = flags; +} + +static void irq_disable(void) +{ + lguest_data.irq_enabled = 0; +} + +static void irq_enable(void) +{ + /* FIXME: Check if interrupt pending... */ + lguest_data.irq_enabled = X86_EFLAGS_IF; +} + +static void lguest_write_idt_entry(struct desc_struct *dt, + int entrynum, u32 low, u32 high) +{ + write_dt_entry(dt, entrynum, low, high); + hcall(LHCALL_LOAD_IDT_ENTRY, entrynum, low, high); +} + +static void lguest_load_idt(const struct Xgt_desc_struct *desc) +{ + unsigned int i; + struct desc_struct *idt = (void *)desc->address; + + for (i = 0; i < (desc->size+1)/8; i++) + hcall(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b); +} + +static void lguest_load_gdt(const struct Xgt_desc_struct *desc) +{ + BUG_ON((desc->size+1)/8 != GDT_ENTRIES); + hcall(LHCALL_LOAD_GDT, __pa(desc->address), GDT_ENTRIES, 0); +} + +static void lguest_write_gdt_entry(struct desc_struct *dt, + int entrynum, u32 low, u32 high) +{ + write_dt_entry(dt, entrynum, low, high); + hcall(LHCALL_LOAD_GDT, __pa(dt), GDT_ENTRIES, 0); +} + +static void lguest_load_tls(struct thread_struct *t, unsigned int cpu) +{ + lazy_hcall(LHCALL_LOAD_TLS, __pa(&t->tls_array), cpu, 0); +} + +static void lguest_set_ldt(const void *addr, unsigned entries) +{ +} + +static void lguest_load_tr_desc(void) +{ +} + +static void lguest_cpuid(unsigned int *eax, unsigned int *ebx, + unsigned int *ecx, unsigned int *edx) +{ + int function = *eax; + + native_cpuid(eax, ebx, ecx, edx); + switch (function) { + case 1: /* Basic feature request. */ + /* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */ + *ecx &= 0x00002201; + /* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, FPU. */ + *edx &= 0x07808101; + /* Host wants to know when we flush kernel pages: set PGE. */ + *edx |= 0x00002000; + break; + case 0x80000000: + /* Futureproof this a little: if they ask how much extended + * processor information, limit it to known fields. */ + if (*eax > 0x80000008) + *eax = 0x80000008; + break; + } +} + +static unsigned long current_cr0, current_cr3; +static void lguest_write_cr0(unsigned long val) +{ + lazy_hcall(LHCALL_TS, val & 8, 0, 0); + current_cr0 = val; +} + +static unsigned long lguest_read_cr0(void) +{ + return current_cr0; +} + +static void lguest_clts(void) +{ + lazy_hcall(LHCALL_TS, 0, 0, 0); + current_cr0 &= ~8U; +} + +static unsigned long lguest_read_cr2(void) +{ + return lguest_data.cr2; +} + +static void lguest_write_cr3(unsigned long cr3) +{ + lazy_hcall(LHCALL_NEW_PGTABLE, cr3, 0, 0); + current_cr3 = cr3; +} + +static unsigned long lguest_read_cr3(void) +{ + return current_cr3; +} + +/* Used to enable/disable PGE, but we don't care. */ +static unsigned long lguest_read_cr4(void) +{ + return 0; +} + +static void lguest_write_cr4(unsigned long val) +{ +} + +static void lguest_set_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval) +{ + *ptep = pteval; + lazy_hcall(LHCALL_SET_PTE, __pa(mm->pgd), addr, pteval.pte_low); +} + +/* We only support two-level pagetables at the moment. */ +static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval) +{ + *pmdp = pmdval; + lazy_hcall(LHCALL_SET_PMD, __pa(pmdp)&PAGE_MASK, + (__pa(pmdp)&(PAGE_SIZE-1))/4, 0); +} + +/* FIXME: Eliminate all callers of this. */ +static void lguest_set_pte(pte_t *ptep, pte_t pteval) +{ + *ptep = pteval; + /* Don't bother with hypercall before initial setup. */ + if (current_cr3) + lazy_hcall(LHCALL_FLUSH_TLB, 1, 0, 0); +} + +static void lguest_flush_tlb_single(unsigned long addr) +{ + /* Simply set it to zero, and it will fault back in. */ + lazy_hcall(LHCALL_SET_PTE, current_cr3, addr, 0); +} + +static void lguest_flush_tlb_user(void) +{ + lazy_hcall(LHCALL_FLUSH_TLB, 0, 0, 0); +} + +static void lguest_flush_tlb_kernel(void) +{ + lazy_hcall(LHCALL_FLUSH_TLB, 1, 0, 0); +} + +static void disable_lguest_irq(unsigned int irq) +{ + set_bit(irq, lguest_data.blocked_interrupts); +} + +static void enable_lguest_irq(unsigned int irq) +{ + clear_bit(irq, lguest_data.blocked_interrupts); + /* FIXME: If it's pending? */ +} + +static struct irq_chip lguest_irq_controller = { + .name = "lguest", + .mask = disable_lguest_irq, + .mask_ack = disable_lguest_irq, + .unmask = enable_lguest_irq, +}; + +static void __init lguest_init_IRQ(void) +{ + unsigned int i; + + for (i = 0; i < LGUEST_IRQS; i++) { + int vector = FIRST_EXTERNAL_VECTOR + i; + if (vector != SYSCALL_VECTOR) { + set_intr_gate(vector, interrupt[i]); + set_irq_chip_and_handler(i, &lguest_irq_controller, + handle_level_irq); + } + } + irq_ctx_init(smp_processor_id()); +} + +static unsigned long lguest_get_wallclock(void) +{ + return hcall(LHCALL_GET_WALLCLOCK, 0, 0, 0); +} + +static cycle_t lguest_clock_read(void) +{ + if (lguest_data.tsc_khz) + return native_read_tsc(); + else + return jiffies; +} + +/* This is what we tell the kernel is our clocksource. */ +static struct clocksource lguest_clock = { + .name = "lguest", + .rating = 400, + .read = lguest_clock_read, +}; + +/* We also need a "struct clock_event_device": Linux asks us to set it to go + * off some time in the future. Actually, James Morris figured all this out, I + * just applied the patch. */ +static int lguest_clockevent_set_next_event(unsigned long delta, + struct clock_event_device *evt) +{ + if (delta < LG_CLOCK_MIN_DELTA) { + if (printk_ratelimit()) + printk(KERN_DEBUG "%s: small delta %lu ns\n", + __FUNCTION__, delta); + return -ETIME; + } + hcall(LHCALL_SET_CLOCKEVENT, delta, 0, 0); + return 0; +} + +static void lguest_clockevent_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + switch (mode) { + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + /* A 0 argument shuts the clock down. */ + hcall(LHCALL_SET_CLOCKEVENT, 0, 0, 0); + break; + case CLOCK_EVT_MODE_ONESHOT: + /* This is what we expect. */ + break; + case CLOCK_EVT_MODE_PERIODIC: + BUG(); + } +} + +/* This describes our primitive timer chip. */ +static struct clock_event_device lguest_clockevent = { + .name = "lguest", + .features = CLOCK_EVT_FEAT_ONESHOT, + .set_next_event = lguest_clockevent_set_next_event, + .set_mode = lguest_clockevent_set_mode, + .rating = INT_MAX, + .mult = 1, + .shift = 0, + .min_delta_ns = LG_CLOCK_MIN_DELTA, + .max_delta_ns = LG_CLOCK_MAX_DELTA, +}; + +/* This is the Guest timer interrupt handler (hardware interrupt 0). We just + * call the clockevent infrastructure and it does whatever needs doing. */ +static void lguest_time_irq(unsigned int irq, struct irq_desc *desc) +{ + unsigned long flags; + + /* Don't interrupt us while this is running. */ + local_irq_save(flags); + lguest_clockevent.event_handler(&lguest_clockevent); + local_irq_restore(flags); +} + +static void lguest_time_init(void) +{ + set_irq_handler(0, lguest_time_irq); + + /* We use the TSC if the Host tells us we can, otherwise a dumb + * jiffies-based clock. */ + if (lguest_data.tsc_khz) { + lguest_clock.shift = 22; + lguest_clock.mult = clocksource_khz2mult(lguest_data.tsc_khz, + lguest_clock.shift); + lguest_clock.mask = CLOCKSOURCE_MASK(64); + lguest_clock.flags = CLOCK_SOURCE_IS_CONTINUOUS; + } else { + /* To understand this, start at kernel/time/jiffies.c... */ + lguest_clock.shift = 8; + lguest_clock.mult = (((u64)NSEC_PER_SEC<<8)/ACTHZ) << 8; + lguest_clock.mask = CLOCKSOURCE_MASK(32); + } + clocksource_register(&lguest_clock); + + /* We can't set cpumask in the initializer: damn C limitations! */ + lguest_clockevent.cpumask = cpumask_of_cpu(0); + clockevents_register_device(&lguest_clockevent); + + enable_lguest_irq(0); +} + +static void lguest_load_esp0(struct tss_struct *tss, + struct thread_struct *thread) +{ + lazy_hcall(LHCALL_SET_STACK, __KERNEL_DS|0x1, thread->esp0, + THREAD_SIZE/PAGE_SIZE); +} + +static void lguest_set_debugreg(int regno, unsigned long value) +{ + /* FIXME: Implement */ +} + +static void lguest_wbinvd(void) +{ +} + +#ifdef CONFIG_X86_LOCAL_APIC +static void lguest_apic_write(unsigned long reg, unsigned long v) +{ +} + +static unsigned long lguest_apic_read(unsigned long reg) +{ + return 0; +} +#endif + +static void lguest_safe_halt(void) +{ + hcall(LHCALL_HALT, 0, 0, 0); +} + +static void lguest_power_off(void) +{ + hcall(LHCALL_CRASH, __pa("Power down"), 0, 0); +} + +static int lguest_panic(struct notifier_block *nb, unsigned long l, void *p) +{ + hcall(LHCALL_CRASH, __pa(p), 0, 0); + return NOTIFY_DONE; +} + +static struct notifier_block paniced = { + .notifier_call = lguest_panic +}; + +static __init char *lguest_memory_setup(void) +{ + /* We do this here because lockcheck barfs if before start_kernel */ + atomic_notifier_chain_register(&panic_notifier_list, &paniced); + + add_memory_region(E820_MAP->addr, E820_MAP->size, E820_MAP->type); + return "LGUEST"; +} + +static const struct lguest_insns +{ + const char *start, *end; +} lguest_insns[] = { + [PARAVIRT_PATCH(irq_disable)] = { lgstart_cli, lgend_cli }, + [PARAVIRT_PATCH(irq_enable)] = { lgstart_sti, lgend_sti }, + [PARAVIRT_PATCH(restore_fl)] = { lgstart_popf, lgend_popf }, + [PARAVIRT_PATCH(save_fl)] = { lgstart_pushf, lgend_pushf }, +}; +static unsigned lguest_patch(u8 type, u16 clobber, void *insns, unsigned len) +{ + unsigned int insn_len; + + /* Don't touch it if we don't have a replacement */ + if (type >= ARRAY_SIZE(lguest_insns) || !lguest_insns[type].start) + return paravirt_patch_default(type, clobber, insns, len); + + insn_len = lguest_insns[type].end - lguest_insns[type].start; + + /* Similarly if we can't fit replacement. */ + if (len < insn_len) + return paravirt_patch_default(type, clobber, insns, len); + + memcpy(insns, lguest_insns[type].start, insn_len); + return insn_len; +} + +__init void lguest_init(void *boot) +{ + /* Copy boot parameters first. */ + memcpy(&boot_params, boot, PARAM_SIZE); + memcpy(boot_command_line, __va(boot_params.hdr.cmd_line_ptr), + COMMAND_LINE_SIZE); + + paravirt_ops.name = "lguest"; + paravirt_ops.paravirt_enabled = 1; + paravirt_ops.kernel_rpl = 1; + + paravirt_ops.save_fl = save_fl; + paravirt_ops.restore_fl = restore_fl; + paravirt_ops.irq_disable = irq_disable; + paravirt_ops.irq_enable = irq_enable; + paravirt_ops.load_gdt = lguest_load_gdt; + paravirt_ops.memory_setup = lguest_memory_setup; + paravirt_ops.cpuid = lguest_cpuid; + paravirt_ops.write_cr3 = lguest_write_cr3; + paravirt_ops.flush_tlb_user = lguest_flush_tlb_user; + paravirt_ops.flush_tlb_single = lguest_flush_tlb_single; + paravirt_ops.flush_tlb_kernel = lguest_flush_tlb_kernel; + paravirt_ops.set_pte = lguest_set_pte; + paravirt_ops.set_pte_at = lguest_set_pte_at; + paravirt_ops.set_pmd = lguest_set_pmd; +#ifdef CONFIG_X86_LOCAL_APIC + paravirt_ops.apic_write = lguest_apic_write; + paravirt_ops.apic_write_atomic = lguest_apic_write; + paravirt_ops.apic_read = lguest_apic_read; +#endif + paravirt_ops.load_idt = lguest_load_idt; + paravirt_ops.iret = lguest_iret; + paravirt_ops.load_esp0 = lguest_load_esp0; + paravirt_ops.load_tr_desc = lguest_load_tr_desc; + paravirt_ops.set_ldt = lguest_set_ldt; + paravirt_ops.load_tls = lguest_load_tls; + paravirt_ops.set_debugreg = lguest_set_debugreg; + paravirt_ops.clts = lguest_clts; + paravirt_ops.read_cr0 = lguest_read_cr0; + paravirt_ops.write_cr0 = lguest_write_cr0; + paravirt_ops.init_IRQ = lguest_init_IRQ; + paravirt_ops.read_cr2 = lguest_read_cr2; + paravirt_ops.read_cr3 = lguest_read_cr3; + paravirt_ops.read_cr4 = lguest_read_cr4; + paravirt_ops.write_cr4 = lguest_write_cr4; + paravirt_ops.write_gdt_entry = lguest_write_gdt_entry; + paravirt_ops.write_idt_entry = lguest_write_idt_entry; + paravirt_ops.patch = lguest_patch; + paravirt_ops.safe_halt = lguest_safe_halt; + paravirt_ops.get_wallclock = lguest_get_wallclock; + paravirt_ops.time_init = lguest_time_init; + paravirt_ops.set_lazy_mode = lguest_lazy_mode; + paravirt_ops.wbinvd = lguest_wbinvd; + + hcall(LHCALL_LGUEST_INIT, __pa(&lguest_data), 0, 0); + + /* We use top of mem for initial pagetables. */ + init_pg_tables_end = __pa(pg0); + + asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_DS) : "memory"); + + reserve_top_address(lguest_data.reserve_mem); + + lockdep_init(); + + paravirt_disable_iospace(); + + cpu_detect(&new_cpu_data); + /* head.S usually sets up the first capability word, so do it here. */ + new_cpu_data.x86_capability[0] = cpuid_edx(1); + + /* Math is always hard! */ + new_cpu_data.hard_math = 1; + +#ifdef CONFIG_X86_MCE + mce_disabled = 1; +#endif + +#ifdef CONFIG_ACPI + acpi_disabled = 1; + acpi_ht = 0; +#endif + + add_preferred_console("hvc", 0, NULL); + + pm_power_off = lguest_power_off; + start_kernel(); +} diff --git a/drivers/lguest/lguest_asm.S b/drivers/lguest/lguest_asm.S new file mode 100644 index 000000000000..00046c57b5ba --- /dev/null +++ b/drivers/lguest/lguest_asm.S @@ -0,0 +1,56 @@ +#include <linux/linkage.h> +#include <linux/lguest.h> +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> + +/* FIXME: Once asm/processor-flags.h goes in, include that */ +#define X86_EFLAGS_IF 0x00000200 + +/* + * This is where we begin: we have a magic signature which the launcher looks + * for. The plan is that the Linux boot protocol will be extended with a + * "platform type" field which will guide us here from the normal entry point, + * but for the moment this suffices. We pass the virtual address of the boot + * info to lguest_init(). + * + * We put it in .init.text will be discarded after boot. + */ +.section .init.text, "ax", @progbits +.ascii "GenuineLguest" + /* Set up initial stack. */ + movl $(init_thread_union+THREAD_SIZE),%esp + movl %esi, %eax + addl $__PAGE_OFFSET, %eax + jmp lguest_init + +/* The templates for inline patching. */ +#define LGUEST_PATCH(name, insns...) \ + lgstart_##name: insns; lgend_##name:; \ + .globl lgstart_##name; .globl lgend_##name + +LGUEST_PATCH(cli, movl $0, lguest_data+LGUEST_DATA_irq_enabled) +LGUEST_PATCH(sti, movl $X86_EFLAGS_IF, lguest_data+LGUEST_DATA_irq_enabled) +LGUEST_PATCH(popf, movl %eax, lguest_data+LGUEST_DATA_irq_enabled) +LGUEST_PATCH(pushf, movl lguest_data+LGUEST_DATA_irq_enabled, %eax) + +.text +/* These demark the EIP range where host should never deliver interrupts. */ +.global lguest_noirq_start +.global lguest_noirq_end + +/* + * We move eflags word to lguest_data.irq_enabled to restore interrupt state. + * For page faults, gpfs and virtual interrupts, the hypervisor has saved + * eflags manually, otherwise it was delivered directly and so eflags reflects + * the real machine IF state, ie. interrupts on. Since the kernel always dies + * if it takes such a trap with interrupts disabled anyway, turning interrupts + * back on unconditionally here is OK. + */ +ENTRY(lguest_iret) + pushl %eax + movl 12(%esp), %eax +lguest_noirq_start: + movl %eax,%ss:lguest_data+LGUEST_DATA_irq_enabled + popl %eax + iret +lguest_noirq_end: diff --git a/drivers/lguest/lguest_bus.c b/drivers/lguest/lguest_bus.c new file mode 100644 index 000000000000..18d6ab21a43b --- /dev/null +++ b/drivers/lguest/lguest_bus.c @@ -0,0 +1,148 @@ +#include <linux/init.h> +#include <linux/bootmem.h> +#include <linux/lguest_bus.h> +#include <asm/io.h> + +static ssize_t type_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct lguest_device *dev = container_of(_dev,struct lguest_device,dev); + return sprintf(buf, "%hu", lguest_devices[dev->index].type); +} +static ssize_t features_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct lguest_device *dev = container_of(_dev,struct lguest_device,dev); + return sprintf(buf, "%hx", lguest_devices[dev->index].features); +} +static ssize_t pfn_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct lguest_device *dev = container_of(_dev,struct lguest_device,dev); + return sprintf(buf, "%u", lguest_devices[dev->index].pfn); +} +static ssize_t status_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct lguest_device *dev = container_of(_dev,struct lguest_device,dev); + return sprintf(buf, "%hx", lguest_devices[dev->index].status); +} +static ssize_t status_store(struct device *_dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct lguest_device *dev = container_of(_dev,struct lguest_device,dev); + if (sscanf(buf, "%hi", &lguest_devices[dev->index].status) != 1) + return -EINVAL; + return count; +} +static struct device_attribute lguest_dev_attrs[] = { + __ATTR_RO(type), + __ATTR_RO(features), + __ATTR_RO(pfn), + __ATTR(status, 0644, status_show, status_store), + __ATTR_NULL +}; + +static int lguest_dev_match(struct device *_dev, struct device_driver *_drv) +{ + struct lguest_device *dev = container_of(_dev,struct lguest_device,dev); + struct lguest_driver *drv = container_of(_drv,struct lguest_driver,drv); + + return (drv->device_type == lguest_devices[dev->index].type); +} + +struct lguest_bus { + struct bus_type bus; + struct device dev; +}; + +static struct lguest_bus lguest_bus = { + .bus = { + .name = "lguest", + .match = lguest_dev_match, + .dev_attrs = lguest_dev_attrs, + }, + .dev = { + .parent = NULL, + .bus_id = "lguest", + } +}; + +static int lguest_dev_probe(struct device *_dev) +{ + int ret; + struct lguest_device *dev = container_of(_dev,struct lguest_device,dev); + struct lguest_driver *drv = container_of(dev->dev.driver, + struct lguest_driver, drv); + + lguest_devices[dev->index].status |= LGUEST_DEVICE_S_DRIVER; + ret = drv->probe(dev); + if (ret == 0) + lguest_devices[dev->index].status |= LGUEST_DEVICE_S_DRIVER_OK; + return ret; +} + +int register_lguest_driver(struct lguest_driver *drv) +{ + if (!lguest_devices) + return 0; + + drv->drv.bus = &lguest_bus.bus; + drv->drv.name = drv->name; + drv->drv.owner = drv->owner; + drv->drv.probe = lguest_dev_probe; + + return driver_register(&drv->drv); +} +EXPORT_SYMBOL_GPL(register_lguest_driver); + +static void add_lguest_device(unsigned int index) +{ + struct lguest_device *new; + + lguest_devices[index].status |= LGUEST_DEVICE_S_ACKNOWLEDGE; + new = kmalloc(sizeof(struct lguest_device), GFP_KERNEL); + if (!new) { + printk(KERN_EMERG "Cannot allocate lguest device %u\n", index); + lguest_devices[index].status |= LGUEST_DEVICE_S_FAILED; + return; + } + + new->index = index; + new->private = NULL; + memset(&new->dev, 0, sizeof(new->dev)); + new->dev.parent = &lguest_bus.dev; + new->dev.bus = &lguest_bus.bus; + sprintf(new->dev.bus_id, "%u", index); + if (device_register(&new->dev) != 0) { + printk(KERN_EMERG "Cannot register lguest device %u\n", index); + lguest_devices[index].status |= LGUEST_DEVICE_S_FAILED; + kfree(new); + } +} + +static void scan_devices(void) +{ + unsigned int i; + + for (i = 0; i < LGUEST_MAX_DEVICES; i++) + if (lguest_devices[i].type) + add_lguest_device(i); +} + +static int __init lguest_bus_init(void) +{ + if (strcmp(paravirt_ops.name, "lguest") != 0) + return 0; + + /* Devices are in page above top of "normal" mem. */ + lguest_devices = lguest_map(max_pfn<<PAGE_SHIFT, 1); + + if (bus_register(&lguest_bus.bus) != 0 + || device_register(&lguest_bus.dev) != 0) + panic("lguest bus registration failed"); + + scan_devices(); + return 0; +} +postcore_initcall(lguest_bus_init); diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c new file mode 100644 index 000000000000..e90d7a783daf --- /dev/null +++ b/drivers/lguest/lguest_user.c @@ -0,0 +1,236 @@ +/* Userspace control of the guest, via /dev/lguest. */ +#include <linux/uaccess.h> +#include <linux/miscdevice.h> +#include <linux/fs.h> +#include "lg.h" + +static void setup_regs(struct lguest_regs *regs, unsigned long start) +{ + /* Write out stack in format lguest expects, so we can switch to it. */ + regs->ds = regs->es = regs->ss = __KERNEL_DS|GUEST_PL; + regs->cs = __KERNEL_CS|GUEST_PL; + regs->eflags = 0x202; /* Interrupts enabled. */ + regs->eip = start; + /* esi points to our boot information (physical address 0) */ +} + +/* + addr */ +static long user_get_dma(struct lguest *lg, const u32 __user *input) +{ + unsigned long key, udma, irq; + + if (get_user(key, input) != 0) + return -EFAULT; + udma = get_dma_buffer(lg, key, &irq); + if (!udma) + return -ENOENT; + + /* We put irq number in udma->used_len. */ + lgwrite_u32(lg, udma + offsetof(struct lguest_dma, used_len), irq); + return udma; +} + +/* To force the Guest to stop running and return to the Launcher, the + * Waker sets writes LHREQ_BREAK and the value "1" to /dev/lguest. The + * Launcher then writes LHREQ_BREAK and "0" to release the Waker. */ +static int break_guest_out(struct lguest *lg, const u32 __user *input) +{ + unsigned long on; + + /* Fetch whether they're turning break on or off.. */ + if (get_user(on, input) != 0) + return -EFAULT; + + if (on) { + lg->break_out = 1; + /* Pop it out (may be running on different CPU) */ + wake_up_process(lg->tsk); + /* Wait for them to reset it */ + return wait_event_interruptible(lg->break_wq, !lg->break_out); + } else { + lg->break_out = 0; + wake_up(&lg->break_wq); + return 0; + } +} + +/* + irq */ +static int user_send_irq(struct lguest *lg, const u32 __user *input) +{ + u32 irq; + + if (get_user(irq, input) != 0) + return -EFAULT; + if (irq >= LGUEST_IRQS) + return -EINVAL; + set_bit(irq, lg->irqs_pending); + return 0; +} + +static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) +{ + struct lguest *lg = file->private_data; + + if (!lg) + return -EINVAL; + + /* If you're not the task which owns the guest, go away. */ + if (current != lg->tsk) + return -EPERM; + + if (lg->dead) { + size_t len; + + if (IS_ERR(lg->dead)) + return PTR_ERR(lg->dead); + + len = min(size, strlen(lg->dead)+1); + if (copy_to_user(user, lg->dead, len) != 0) + return -EFAULT; + return len; + } + + if (lg->dma_is_pending) + lg->dma_is_pending = 0; + + return run_guest(lg, (unsigned long __user *)user); +} + +/* Take: pfnlimit, pgdir, start, pageoffset. */ +static int initialize(struct file *file, const u32 __user *input) +{ + struct lguest *lg; + int err, i; + u32 args[4]; + + /* We grab the Big Lguest lock, which protects the global array + * "lguests" and multiple simultaneous initializations. */ + mutex_lock(&lguest_lock); + + if (file->private_data) { + err = -EBUSY; + goto unlock; + } + + if (copy_from_user(args, input, sizeof(args)) != 0) { + err = -EFAULT; + goto unlock; + } + + i = find_free_guest(); + if (i < 0) { + err = -ENOSPC; + goto unlock; + } + lg = &lguests[i]; + lg->guestid = i; + lg->pfn_limit = args[0]; + lg->page_offset = args[3]; + lg->regs_page = get_zeroed_page(GFP_KERNEL); + if (!lg->regs_page) { + err = -ENOMEM; + goto release_guest; + } + lg->regs = (void *)lg->regs_page + PAGE_SIZE - sizeof(*lg->regs); + + err = init_guest_pagetable(lg, args[1]); + if (err) + goto free_regs; + + setup_regs(lg->regs, args[2]); + setup_guest_gdt(lg); + init_clockdev(lg); + lg->tsk = current; + lg->mm = get_task_mm(lg->tsk); + init_waitqueue_head(&lg->break_wq); + lg->last_pages = NULL; + file->private_data = lg; + + mutex_unlock(&lguest_lock); + + return sizeof(args); + +free_regs: + free_page(lg->regs_page); +release_guest: + memset(lg, 0, sizeof(*lg)); +unlock: + mutex_unlock(&lguest_lock); + return err; +} + +static ssize_t write(struct file *file, const char __user *input, + size_t size, loff_t *off) +{ + struct lguest *lg = file->private_data; + u32 req; + + if (get_user(req, input) != 0) + return -EFAULT; + input += sizeof(req); + + if (req != LHREQ_INITIALIZE && !lg) + return -EINVAL; + if (lg && lg->dead) + return -ENOENT; + + /* If you're not the task which owns the Guest, you can only break */ + if (lg && current != lg->tsk && req != LHREQ_BREAK) + return -EPERM; + + switch (req) { + case LHREQ_INITIALIZE: + return initialize(file, (const u32 __user *)input); + case LHREQ_GETDMA: + return user_get_dma(lg, (const u32 __user *)input); + case LHREQ_IRQ: + return user_send_irq(lg, (const u32 __user *)input); + case LHREQ_BREAK: + return break_guest_out(lg, (const u32 __user *)input); + default: + return -EINVAL; + } +} + +static int close(struct inode *inode, struct file *file) +{ + struct lguest *lg = file->private_data; + + if (!lg) + return 0; + + mutex_lock(&lguest_lock); + /* Cancels the hrtimer set via LHCALL_SET_CLOCKEVENT. */ + hrtimer_cancel(&lg->hrt); + release_all_dma(lg); + free_guest_pagetable(lg); + mmput(lg->mm); + if (!IS_ERR(lg->dead)) + kfree(lg->dead); + free_page(lg->regs_page); + memset(lg, 0, sizeof(*lg)); + mutex_unlock(&lguest_lock); + return 0; +} + +static struct file_operations lguest_fops = { + .owner = THIS_MODULE, + .release = close, + .write = write, + .read = read, +}; +static struct miscdevice lguest_dev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "lguest", + .fops = &lguest_fops, +}; + +int __init lguest_device_init(void) +{ + return misc_register(&lguest_dev); +} + +void __exit lguest_device_remove(void) +{ + misc_deregister(&lguest_dev); +} diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c new file mode 100644 index 000000000000..1b0ba09b1269 --- /dev/null +++ b/drivers/lguest/page_tables.c @@ -0,0 +1,411 @@ +/* Shadow page table operations. + * Copyright (C) Rusty Russell IBM Corporation 2006. + * GPL v2 and any later version */ +#include <linux/mm.h> +#include <linux/types.h> +#include <linux/spinlock.h> +#include <linux/random.h> +#include <linux/percpu.h> +#include <asm/tlbflush.h> +#include "lg.h" + +#define PTES_PER_PAGE_SHIFT 10 +#define PTES_PER_PAGE (1 << PTES_PER_PAGE_SHIFT) +#define SWITCHER_PGD_INDEX (PTES_PER_PAGE - 1) + +static DEFINE_PER_CPU(spte_t *, switcher_pte_pages); +#define switcher_pte_page(cpu) per_cpu(switcher_pte_pages, cpu) + +static unsigned vaddr_to_pgd_index(unsigned long vaddr) +{ + return vaddr >> (PAGE_SHIFT + PTES_PER_PAGE_SHIFT); +} + +/* These access the shadow versions (ie. the ones used by the CPU). */ +static spgd_t *spgd_addr(struct lguest *lg, u32 i, unsigned long vaddr) +{ + unsigned int index = vaddr_to_pgd_index(vaddr); + + if (index >= SWITCHER_PGD_INDEX) { + kill_guest(lg, "attempt to access switcher pages"); + index = 0; + } + return &lg->pgdirs[i].pgdir[index]; +} + +static spte_t *spte_addr(struct lguest *lg, spgd_t spgd, unsigned long vaddr) +{ + spte_t *page = __va(spgd.pfn << PAGE_SHIFT); + BUG_ON(!(spgd.flags & _PAGE_PRESENT)); + return &page[(vaddr >> PAGE_SHIFT) % PTES_PER_PAGE]; +} + +/* These access the guest versions. */ +static unsigned long gpgd_addr(struct lguest *lg, unsigned long vaddr) +{ + unsigned int index = vaddr >> (PAGE_SHIFT + PTES_PER_PAGE_SHIFT); + return lg->pgdirs[lg->pgdidx].cr3 + index * sizeof(gpgd_t); +} + +static unsigned long gpte_addr(struct lguest *lg, + gpgd_t gpgd, unsigned long vaddr) +{ + unsigned long gpage = gpgd.pfn << PAGE_SHIFT; + BUG_ON(!(gpgd.flags & _PAGE_PRESENT)); + return gpage + ((vaddr>>PAGE_SHIFT) % PTES_PER_PAGE) * sizeof(gpte_t); +} + +/* Do a virtual -> physical mapping on a user page. */ +static unsigned long get_pfn(unsigned long virtpfn, int write) +{ + struct page *page; + unsigned long ret = -1UL; + + down_read(¤t->mm->mmap_sem); + if (get_user_pages(current, current->mm, virtpfn << PAGE_SHIFT, + 1, write, 1, &page, NULL) == 1) + ret = page_to_pfn(page); + up_read(¤t->mm->mmap_sem); + return ret; +} + +static spte_t gpte_to_spte(struct lguest *lg, gpte_t gpte, int write) +{ + spte_t spte; + unsigned long pfn; + + /* We ignore the global flag. */ + spte.flags = (gpte.flags & ~_PAGE_GLOBAL); + pfn = get_pfn(gpte.pfn, write); + if (pfn == -1UL) { + kill_guest(lg, "failed to get page %u", gpte.pfn); + /* Must not put_page() bogus page on cleanup. */ + spte.flags = 0; + } + spte.pfn = pfn; + return spte; +} + +static void release_pte(spte_t pte) +{ + if (pte.flags & _PAGE_PRESENT) + put_page(pfn_to_page(pte.pfn)); +} + +static void check_gpte(struct lguest *lg, gpte_t gpte) +{ + if ((gpte.flags & (_PAGE_PWT|_PAGE_PSE)) || gpte.pfn >= lg->pfn_limit) + kill_guest(lg, "bad page table entry"); +} + +static void check_gpgd(struct lguest *lg, gpgd_t gpgd) +{ + if ((gpgd.flags & ~_PAGE_TABLE) || gpgd.pfn >= lg->pfn_limit) + kill_guest(lg, "bad page directory entry"); +} + +/* FIXME: We hold reference to pages, which prevents them from being + swapped. It'd be nice to have a callback when Linux wants to swap out. */ + +/* We fault pages in, which allows us to update accessed/dirty bits. + * Return true if we got page. */ +int demand_page(struct lguest *lg, unsigned long vaddr, int errcode) +{ + gpgd_t gpgd; + spgd_t *spgd; + unsigned long gpte_ptr; + gpte_t gpte; + spte_t *spte; + + gpgd = mkgpgd(lgread_u32(lg, gpgd_addr(lg, vaddr))); + if (!(gpgd.flags & _PAGE_PRESENT)) + return 0; + + spgd = spgd_addr(lg, lg->pgdidx, vaddr); + if (!(spgd->flags & _PAGE_PRESENT)) { + /* Get a page of PTEs for them. */ + unsigned long ptepage = get_zeroed_page(GFP_KERNEL); + /* FIXME: Steal from self in this case? */ + if (!ptepage) { + kill_guest(lg, "out of memory allocating pte page"); + return 0; + } + check_gpgd(lg, gpgd); + spgd->raw.val = (__pa(ptepage) | gpgd.flags); + } + + gpte_ptr = gpte_addr(lg, gpgd, vaddr); + gpte = mkgpte(lgread_u32(lg, gpte_ptr)); + + /* No page? */ + if (!(gpte.flags & _PAGE_PRESENT)) + return 0; + + /* Write to read-only page? */ + if ((errcode & 2) && !(gpte.flags & _PAGE_RW)) + return 0; + + /* User access to a non-user page? */ + if ((errcode & 4) && !(gpte.flags & _PAGE_USER)) + return 0; + + check_gpte(lg, gpte); + gpte.flags |= _PAGE_ACCESSED; + if (errcode & 2) + gpte.flags |= _PAGE_DIRTY; + + /* We're done with the old pte. */ + spte = spte_addr(lg, *spgd, vaddr); + release_pte(*spte); + + /* We don't make it writable if this isn't a write: later + * write will fault so we can set dirty bit in guest. */ + if (gpte.flags & _PAGE_DIRTY) + *spte = gpte_to_spte(lg, gpte, 1); + else { + gpte_t ro_gpte = gpte; + ro_gpte.flags &= ~_PAGE_RW; + *spte = gpte_to_spte(lg, ro_gpte, 0); + } + + /* Now we update dirty/accessed on guest. */ + lgwrite_u32(lg, gpte_ptr, gpte.raw.val); + return 1; +} + +/* This is much faster than the full demand_page logic. */ +static int page_writable(struct lguest *lg, unsigned long vaddr) +{ + spgd_t *spgd; + unsigned long flags; + + spgd = spgd_addr(lg, lg->pgdidx, vaddr); + if (!(spgd->flags & _PAGE_PRESENT)) + return 0; + + flags = spte_addr(lg, *spgd, vaddr)->flags; + return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW); +} + +void pin_page(struct lguest *lg, unsigned long vaddr) +{ + if (!page_writable(lg, vaddr) && !demand_page(lg, vaddr, 2)) + kill_guest(lg, "bad stack page %#lx", vaddr); +} + +static void release_pgd(struct lguest *lg, spgd_t *spgd) +{ + if (spgd->flags & _PAGE_PRESENT) { + unsigned int i; + spte_t *ptepage = __va(spgd->pfn << PAGE_SHIFT); + for (i = 0; i < PTES_PER_PAGE; i++) + release_pte(ptepage[i]); + free_page((long)ptepage); + spgd->raw.val = 0; + } +} + +static void flush_user_mappings(struct lguest *lg, int idx) +{ + unsigned int i; + for (i = 0; i < vaddr_to_pgd_index(lg->page_offset); i++) + release_pgd(lg, lg->pgdirs[idx].pgdir + i); +} + +void guest_pagetable_flush_user(struct lguest *lg) +{ + flush_user_mappings(lg, lg->pgdidx); +} + +static unsigned int find_pgdir(struct lguest *lg, unsigned long pgtable) +{ + unsigned int i; + for (i = 0; i < ARRAY_SIZE(lg->pgdirs); i++) + if (lg->pgdirs[i].cr3 == pgtable) + break; + return i; +} + +static unsigned int new_pgdir(struct lguest *lg, + unsigned long cr3, + int *blank_pgdir) +{ + unsigned int next; + + next = random32() % ARRAY_SIZE(lg->pgdirs); + if (!lg->pgdirs[next].pgdir) { + lg->pgdirs[next].pgdir = (spgd_t *)get_zeroed_page(GFP_KERNEL); + if (!lg->pgdirs[next].pgdir) + next = lg->pgdidx; + else + /* There are no mappings: you'll need to re-pin */ + *blank_pgdir = 1; + } + lg->pgdirs[next].cr3 = cr3; + /* Release all the non-kernel mappings. */ + flush_user_mappings(lg, next); + + return next; +} + +void guest_new_pagetable(struct lguest *lg, unsigned long pgtable) +{ + int newpgdir, repin = 0; + + newpgdir = find_pgdir(lg, pgtable); + if (newpgdir == ARRAY_SIZE(lg->pgdirs)) + newpgdir = new_pgdir(lg, pgtable, &repin); + lg->pgdidx = newpgdir; + if (repin) + pin_stack_pages(lg); +} + +static void release_all_pagetables(struct lguest *lg) +{ + unsigned int i, j; + + for (i = 0; i < ARRAY_SIZE(lg->pgdirs); i++) + if (lg->pgdirs[i].pgdir) + for (j = 0; j < SWITCHER_PGD_INDEX; j++) + release_pgd(lg, lg->pgdirs[i].pgdir + j); +} + +void guest_pagetable_clear_all(struct lguest *lg) +{ + release_all_pagetables(lg); + pin_stack_pages(lg); +} + +static void do_set_pte(struct lguest *lg, int idx, + unsigned long vaddr, gpte_t gpte) +{ + spgd_t *spgd = spgd_addr(lg, idx, vaddr); + if (spgd->flags & _PAGE_PRESENT) { + spte_t *spte = spte_addr(lg, *spgd, vaddr); + release_pte(*spte); + if (gpte.flags & (_PAGE_DIRTY | _PAGE_ACCESSED)) { + check_gpte(lg, gpte); + *spte = gpte_to_spte(lg, gpte, gpte.flags&_PAGE_DIRTY); + } else + spte->raw.val = 0; + } +} + +void guest_set_pte(struct lguest *lg, + unsigned long cr3, unsigned long vaddr, gpte_t gpte) +{ + /* Kernel mappings must be changed on all top levels. */ + if (vaddr >= lg->page_offset) { + unsigned int i; + for (i = 0; i < ARRAY_SIZE(lg->pgdirs); i++) + if (lg->pgdirs[i].pgdir) + do_set_pte(lg, i, vaddr, gpte); + } else { + int pgdir = find_pgdir(lg, cr3); + if (pgdir != ARRAY_SIZE(lg->pgdirs)) + do_set_pte(lg, pgdir, vaddr, gpte); + } +} + +void guest_set_pmd(struct lguest *lg, unsigned long cr3, u32 idx) +{ + int pgdir; + + if (idx >= SWITCHER_PGD_INDEX) + return; + + pgdir = find_pgdir(lg, cr3); + if (pgdir < ARRAY_SIZE(lg->pgdirs)) + release_pgd(lg, lg->pgdirs[pgdir].pgdir + idx); +} + +int init_guest_pagetable(struct lguest *lg, unsigned long pgtable) +{ + /* We assume this in flush_user_mappings, so check now */ + if (vaddr_to_pgd_index(lg->page_offset) >= SWITCHER_PGD_INDEX) + return -EINVAL; + lg->pgdidx = 0; + lg->pgdirs[lg->pgdidx].cr3 = pgtable; + lg->pgdirs[lg->pgdidx].pgdir = (spgd_t*)get_zeroed_page(GFP_KERNEL); + if (!lg->pgdirs[lg->pgdidx].pgdir) + return -ENOMEM; + return 0; +} + +void free_guest_pagetable(struct lguest *lg) +{ + unsigned int i; + + release_all_pagetables(lg); + for (i = 0; i < ARRAY_SIZE(lg->pgdirs); i++) + free_page((long)lg->pgdirs[i].pgdir); +} + +/* Caller must be preempt-safe */ +void map_switcher_in_guest(struct lguest *lg, struct lguest_pages *pages) +{ + spte_t *switcher_pte_page = __get_cpu_var(switcher_pte_pages); + spgd_t switcher_pgd; + spte_t regs_pte; + + /* Since switcher less that 4MB, we simply mug top pte page. */ + switcher_pgd.pfn = __pa(switcher_pte_page) >> PAGE_SHIFT; + switcher_pgd.flags = _PAGE_KERNEL; + lg->pgdirs[lg->pgdidx].pgdir[SWITCHER_PGD_INDEX] = switcher_pgd; + + /* Map our regs page over stack page. */ + regs_pte.pfn = __pa(lg->regs_page) >> PAGE_SHIFT; + regs_pte.flags = _PAGE_KERNEL; + switcher_pte_page[(unsigned long)pages/PAGE_SIZE%PTES_PER_PAGE] + = regs_pte; +} + +static void free_switcher_pte_pages(void) +{ + unsigned int i; + + for_each_possible_cpu(i) + free_page((long)switcher_pte_page(i)); +} + +static __init void populate_switcher_pte_page(unsigned int cpu, + struct page *switcher_page[], + unsigned int pages) +{ + unsigned int i; + spte_t *pte = switcher_pte_page(cpu); + + for (i = 0; i < pages; i++) { + pte[i].pfn = page_to_pfn(switcher_page[i]); + pte[i].flags = _PAGE_PRESENT|_PAGE_ACCESSED; + } + + /* We only map this CPU's pages, so guest can't see others. */ + i = pages + cpu*2; + + /* First page (regs) is rw, second (state) is ro. */ + pte[i].pfn = page_to_pfn(switcher_page[i]); + pte[i].flags = _PAGE_PRESENT|_PAGE_ACCESSED|_PAGE_RW; + pte[i+1].pfn = page_to_pfn(switcher_page[i+1]); + pte[i+1].flags = _PAGE_PRESENT|_PAGE_ACCESSED; +} + +__init int init_pagetables(struct page **switcher_page, unsigned int pages) +{ + unsigned int i; + + for_each_possible_cpu(i) { + switcher_pte_page(i) = (spte_t *)get_zeroed_page(GFP_KERNEL); + if (!switcher_pte_page(i)) { + free_switcher_pte_pages(); + return -ENOMEM; + } + populate_switcher_pte_page(i, switcher_page, pages); + } + return 0; +} + +void free_pagetables(void) +{ + free_switcher_pte_pages(); +} diff --git a/drivers/lguest/segments.c b/drivers/lguest/segments.c new file mode 100644 index 000000000000..1b2cfe89dcd5 --- /dev/null +++ b/drivers/lguest/segments.c @@ -0,0 +1,125 @@ +#include "lg.h" + +static int desc_ok(const struct desc_struct *gdt) +{ + /* MBZ=0, P=1, DT=1 */ + return ((gdt->b & 0x00209000) == 0x00009000); +} + +static int segment_present(const struct desc_struct *gdt) +{ + return gdt->b & 0x8000; +} + +static int ignored_gdt(unsigned int num) +{ + return (num == GDT_ENTRY_TSS + || num == GDT_ENTRY_LGUEST_CS + || num == GDT_ENTRY_LGUEST_DS + || num == GDT_ENTRY_DOUBLEFAULT_TSS); +} + +/* We don't allow removal of CS, DS or SS; it doesn't make sense. */ +static void check_segment_use(struct lguest *lg, unsigned int desc) +{ + if (lg->regs->gs / 8 == desc) + lg->regs->gs = 0; + if (lg->regs->fs / 8 == desc) + lg->regs->fs = 0; + if (lg->regs->es / 8 == desc) + lg->regs->es = 0; + if (lg->regs->ds / 8 == desc + || lg->regs->cs / 8 == desc + || lg->regs->ss / 8 == desc) + kill_guest(lg, "Removed live GDT entry %u", desc); +} + +static void fixup_gdt_table(struct lguest *lg, unsigned start, unsigned end) +{ + unsigned int i; + + for (i = start; i < end; i++) { + /* We never copy these ones to real gdt */ + if (ignored_gdt(i)) + continue; + + /* We could fault in switch_to_guest if they are using + * a removed segment. */ + if (!segment_present(&lg->gdt[i])) { + check_segment_use(lg, i); + continue; + } + + if (!desc_ok(&lg->gdt[i])) + kill_guest(lg, "Bad GDT descriptor %i", i); + + /* DPL 0 presumably means "for use by guest". */ + if ((lg->gdt[i].b & 0x00006000) == 0) + lg->gdt[i].b |= (GUEST_PL << 13); + + /* Set accessed bit, since gdt isn't writable. */ + lg->gdt[i].b |= 0x00000100; + } +} + +void setup_default_gdt_entries(struct lguest_ro_state *state) +{ + struct desc_struct *gdt = state->guest_gdt; + unsigned long tss = (unsigned long)&state->guest_tss; + + /* Hypervisor segments. */ + gdt[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT; + gdt[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT; + + /* This is the one which we *cannot* copy from guest, since tss + is depended on this lguest_ro_state, ie. this cpu. */ + gdt[GDT_ENTRY_TSS].a = 0x00000067 | (tss << 16); + gdt[GDT_ENTRY_TSS].b = 0x00008900 | (tss & 0xFF000000) + | ((tss >> 16) & 0x000000FF); +} + +void setup_guest_gdt(struct lguest *lg) +{ + lg->gdt[GDT_ENTRY_KERNEL_CS] = FULL_EXEC_SEGMENT; + lg->gdt[GDT_ENTRY_KERNEL_DS] = FULL_SEGMENT; + lg->gdt[GDT_ENTRY_KERNEL_CS].b |= (GUEST_PL << 13); + lg->gdt[GDT_ENTRY_KERNEL_DS].b |= (GUEST_PL << 13); +} + +/* This is a fast version for the common case where only the three TLS entries + * have changed. */ +void copy_gdt_tls(const struct lguest *lg, struct desc_struct *gdt) +{ + unsigned int i; + + for (i = GDT_ENTRY_TLS_MIN; i <= GDT_ENTRY_TLS_MAX; i++) + gdt[i] = lg->gdt[i]; +} + +void copy_gdt(const struct lguest *lg, struct desc_struct *gdt) +{ + unsigned int i; + + for (i = 0; i < GDT_ENTRIES; i++) + if (!ignored_gdt(i)) + gdt[i] = lg->gdt[i]; +} + +void load_guest_gdt(struct lguest *lg, unsigned long table, u32 num) +{ + if (num > ARRAY_SIZE(lg->gdt)) + kill_guest(lg, "too many gdt entries %i", num); + + lgread(lg, lg->gdt, table, num * sizeof(lg->gdt[0])); + fixup_gdt_table(lg, 0, ARRAY_SIZE(lg->gdt)); + lg->changed |= CHANGED_GDT; +} + +void guest_load_tls(struct lguest *lg, unsigned long gtls) +{ + struct desc_struct *tls = &lg->gdt[GDT_ENTRY_TLS_MIN]; + + lgread(lg, tls, gtls, sizeof(*tls)*GDT_ENTRY_TLS_ENTRIES); + fixup_gdt_table(lg, GDT_ENTRY_TLS_MIN, GDT_ENTRY_TLS_MAX+1); + lg->changed |= CHANGED_GDT_TLS; +} diff --git a/drivers/lguest/switcher.S b/drivers/lguest/switcher.S new file mode 100644 index 000000000000..eadd4cc299d2 --- /dev/null +++ b/drivers/lguest/switcher.S @@ -0,0 +1,159 @@ +/* This code sits at 0xFFC00000 to do the low-level guest<->host switch. + + There is are two pages above us for this CPU (struct lguest_pages). + The second page (struct lguest_ro_state) becomes read-only after the + context switch. The first page (the stack for traps) remains writable, + but while we're in here, the guest cannot be running. +*/ +#include <linux/linkage.h> +#include <asm/asm-offsets.h> +#include "lg.h" + +.text +ENTRY(start_switcher_text) + +/* %eax points to lguest pages for this CPU. %ebx contains cr3 value. + All normal registers can be clobbered! */ +ENTRY(switch_to_guest) + /* Save host segments on host stack. */ + pushl %es + pushl %ds + pushl %gs + pushl %fs + /* With CONFIG_FRAME_POINTER, gcc doesn't let us clobber this! */ + pushl %ebp + /* Save host stack. */ + movl %esp, LGUEST_PAGES_host_sp(%eax) + /* Switch to guest stack: if we get NMI we expect to be there. */ + movl %eax, %edx + addl $LGUEST_PAGES_regs, %edx + movl %edx, %esp + /* Switch to guest's GDT, IDT. */ + lgdt LGUEST_PAGES_guest_gdt_desc(%eax) + lidt LGUEST_PAGES_guest_idt_desc(%eax) + /* Switch to guest's TSS while GDT still writable. */ + movl $(GDT_ENTRY_TSS*8), %edx + ltr %dx + /* Set host's TSS GDT entry to available (clear byte 5 bit 2). */ + movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx + andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx) + /* Switch to guest page tables: lguest_pages->state now read-only. */ + movl %ebx, %cr3 + /* Restore guest regs */ + popl %ebx + popl %ecx + popl %edx + popl %esi + popl %edi + popl %ebp + popl %gs + popl %eax + popl %fs + popl %ds + popl %es + /* Skip error code and trap number */ + addl $8, %esp + iret + +#define SWITCH_TO_HOST \ + /* Save guest state */ \ + pushl %es; \ + pushl %ds; \ + pushl %fs; \ + pushl %eax; \ + pushl %gs; \ + pushl %ebp; \ + pushl %edi; \ + pushl %esi; \ + pushl %edx; \ + pushl %ecx; \ + pushl %ebx; \ + /* Load lguest ds segment for convenience. */ \ + movl $(LGUEST_DS), %eax; \ + movl %eax, %ds; \ + /* Figure out where we are, based on stack (at top of regs). */ \ + movl %esp, %eax; \ + subl $LGUEST_PAGES_regs, %eax; \ + /* Put trap number in %ebx before we switch cr3 and lose it. */ \ + movl LGUEST_PAGES_regs_trapnum(%eax), %ebx; \ + /* Switch to host page tables (host GDT, IDT and stack are in host \ + mem, so need this first) */ \ + movl LGUEST_PAGES_host_cr3(%eax), %edx; \ + movl %edx, %cr3; \ + /* Set guest's TSS to available (clear byte 5 bit 2). */ \ + andb $0xFD, (LGUEST_PAGES_guest_gdt+GDT_ENTRY_TSS*8+5)(%eax); \ + /* Switch to host's GDT & IDT. */ \ + lgdt LGUEST_PAGES_host_gdt_desc(%eax); \ + lidt LGUEST_PAGES_host_idt_desc(%eax); \ + /* Switch to host's stack. */ \ + movl LGUEST_PAGES_host_sp(%eax), %esp; \ + /* Switch to host's TSS */ \ + movl $(GDT_ENTRY_TSS*8), %edx; \ + ltr %dx; \ + popl %ebp; \ + popl %fs; \ + popl %gs; \ + popl %ds; \ + popl %es + +/* Return to run_guest_once. */ +return_to_host: + SWITCH_TO_HOST + iret + +deliver_to_host: + SWITCH_TO_HOST + /* Decode IDT and jump to hosts' irq handler. When that does iret, it + * will return to run_guest_once. This is a feature. */ + movl (LGUEST_PAGES_host_idt_desc+2)(%eax), %edx + leal (%edx,%ebx,8), %eax + movzwl (%eax),%edx + movl 4(%eax), %eax + xorw %ax, %ax + orl %eax, %edx + jmp *%edx + +/* Real hardware interrupts are delivered straight to the host. Others + cause us to return to run_guest_once so it can decide what to do. Note + that some of these are overridden by the guest to deliver directly, and + never enter here (see load_guest_idt_entry). */ +.macro IRQ_STUB N TARGET + .data; .long 1f; .text; 1: + /* Make an error number for most traps, which don't have one. */ + .if (\N <> 8) && (\N < 10 || \N > 14) && (\N <> 17) + pushl $0 + .endif + pushl $\N + jmp \TARGET + ALIGN +.endm + +.macro IRQ_STUBS FIRST LAST TARGET + irq=\FIRST + .rept \LAST-\FIRST+1 + IRQ_STUB irq \TARGET + irq=irq+1 + .endr +.endm + +/* We intercept every interrupt, because we may need to switch back to + * host. Unfortunately we can't tell them apart except by entry + * point, so we need 256 entry points. + */ +.data +.global default_idt_entries +default_idt_entries: +.text + IRQ_STUBS 0 1 return_to_host /* First two traps */ + IRQ_STUB 2 handle_nmi /* NMI */ + IRQ_STUBS 3 31 return_to_host /* Rest of traps */ + IRQ_STUBS 32 127 deliver_to_host /* Real interrupts */ + IRQ_STUB 128 return_to_host /* System call (overridden) */ + IRQ_STUBS 129 255 deliver_to_host /* Other real interrupts */ + +/* We ignore NMI and return. */ +handle_nmi: + addl $8, %esp + iret + +ENTRY(end_switcher_text) diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index c96b7fe882a4..ec9e5f32f0ae 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -365,10 +365,9 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip, if (np == NULL) return NULL; - dev = kmalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) return NULL; - memset(dev, 0, sizeof(*dev)); dev->bus = &chip->lbus; dev->media_bay = in_bay; diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index f8e1a135bf9d..d409f6759482 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -1053,10 +1053,9 @@ static int smu_open(struct inode *inode, struct file *file) struct smu_private *pp; unsigned long flags; - pp = kmalloc(sizeof(struct smu_private), GFP_KERNEL); + pp = kzalloc(sizeof(struct smu_private), GFP_KERNEL); if (pp == 0) return -ENOMEM; - memset(pp, 0, sizeof(struct smu_private)); spin_lock_init(&pp->lock); pp->mode = smu_file_commands; init_waitqueue_head(&pp->wait); diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index bd55e6ab99fc..f25685b9b7cf 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -335,6 +335,7 @@ static int monitor_task(void *arg) { struct thermostat* th = arg; + set_freezable(); while(!kthread_should_stop()) { try_to_freeze(); msleep_interruptible(2000); diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index dbb22403979f..e43554e754a4 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -318,10 +318,9 @@ static struct i2c_client *attach_i2c_chip(int id, const char *name) if (adap == NULL) return NULL; - clt = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); + clt = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); if (clt == NULL) return NULL; - memset(clt, 0, sizeof(struct i2c_client)); clt->addr = (id >> 1) & 0x7f; clt->adapter = adap; @@ -1770,7 +1769,8 @@ static int call_critical_overtemp(void) "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL }; - return call_usermodehelper(critical_overtemp_path, argv, envp, 0); + return call_usermodehelper(critical_overtemp_path, + argv, envp, UMH_WAIT_EXEC); } diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c index 3d0354e96a97..5452da1bb1a5 100644 --- a/drivers/macintosh/therm_windtunnel.c +++ b/drivers/macintosh/therm_windtunnel.c @@ -431,9 +431,8 @@ do_probe( struct i2c_adapter *adapter, int addr, int kind ) | I2C_FUNC_SMBUS_WRITE_BYTE) ) return 0; - if( !(cl=kmalloc(sizeof(*cl), GFP_KERNEL)) ) + if( !(cl=kzalloc(sizeof(*cl), GFP_KERNEL)) ) return -ENOMEM; - memset( cl, 0, sizeof(struct i2c_client) ); cl->addr = addr; cl->adapter = adapter; diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c index 4fcb245ba184..516d943227e2 100644 --- a/drivers/macintosh/windfarm_core.c +++ b/drivers/macintosh/windfarm_core.c @@ -80,7 +80,8 @@ int wf_critical_overtemp(void) "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL }; - return call_usermodehelper(critical_overtemp_path, argv, envp, 0); + return call_usermodehelper(critical_overtemp_path, + argv, envp, UMH_WAIT_EXEC); } EXPORT_SYMBOL_GPL(wf_critical_overtemp); @@ -92,6 +93,7 @@ static int wf_thread_func(void *data) DBG("wf: thread started\n"); + set_freezable(); while(!kthread_should_stop()) { if (time_after_eq(jiffies, next)) { wf_notify(WF_EVENT_TICK, NULL); diff --git a/drivers/macintosh/windfarm_lm75_sensor.c b/drivers/macintosh/windfarm_lm75_sensor.c index a0fabf3c2008..7e10c3ab4d50 100644 --- a/drivers/macintosh/windfarm_lm75_sensor.c +++ b/drivers/macintosh/windfarm_lm75_sensor.c @@ -117,10 +117,9 @@ static struct wf_lm75_sensor *wf_lm75_create(struct i2c_adapter *adapter, DBG("wf_lm75: creating %s device at address 0x%02x\n", ds1775 ? "ds1775" : "lm75", addr); - lm = kmalloc(sizeof(struct wf_lm75_sensor), GFP_KERNEL); + lm = kzalloc(sizeof(struct wf_lm75_sensor), GFP_KERNEL); if (lm == NULL) return NULL; - memset(lm, 0, sizeof(struct wf_lm75_sensor)); /* Usual rant about sensor names not beeing very consistent in * the device-tree, oh well ... diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 64bf3a81db93..531d4d17d011 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -2,19 +2,17 @@ # Block device driver configuration # -if BLOCK - -menu "Multi-device support (RAID and LVM)" - -config MD +menuconfig MD bool "Multiple devices driver support (RAID and LVM)" + depends on BLOCK help Support multiple physical spindles through a single logical device. Required for RAID and logical volume management. +if MD + config BLK_DEV_MD tristate "RAID support" - depends on MD ---help--- This driver lets you combine several hard disk partitions into one logical block device. This can be used to simply append one @@ -191,7 +189,6 @@ config MD_FAULTY config BLK_DEV_DM tristate "Device mapper support" - depends on MD ---help--- Device-mapper is a low level volume manager. It works by allowing people to specify mappings for ranges of logical sectors. Various @@ -279,6 +276,4 @@ config DM_DELAY If unsure, say N. -endmenu - -endif +endif # MD diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 9620d452d030..927cb34c4805 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -268,6 +268,31 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) if (page->index == bitmap->file_pages-1) size = roundup(bitmap->last_page_size, bdev_hardsect_size(rdev->bdev)); + /* Just make sure we aren't corrupting data or + * metadata + */ + if (bitmap->offset < 0) { + /* DATA BITMAP METADATA */ + if (bitmap->offset + + page->index * (PAGE_SIZE/512) + + size/512 > 0) + /* bitmap runs in to metadata */ + return -EINVAL; + if (rdev->data_offset + mddev->size*2 + > rdev->sb_offset*2 + bitmap->offset) + /* data runs in to bitmap */ + return -EINVAL; + } else if (rdev->sb_offset*2 < rdev->data_offset) { + /* METADATA BITMAP DATA */ + if (rdev->sb_offset*2 + + bitmap->offset + + page->index*(PAGE_SIZE/512) + size/512 + > rdev->data_offset) + /* bitmap runs in to data */ + return -EINVAL; + } else { + /* DATA METADATA BITMAP - no problems */ + } md_super_write(mddev, rdev, (rdev->sb_offset<<1) + bitmap->offset + page->index * (PAGE_SIZE/512), @@ -280,32 +305,38 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait) return 0; } +static void bitmap_file_kick(struct bitmap *bitmap); /* * write out a page to a file */ -static int write_page(struct bitmap *bitmap, struct page *page, int wait) +static void write_page(struct bitmap *bitmap, struct page *page, int wait) { struct buffer_head *bh; - if (bitmap->file == NULL) - return write_sb_page(bitmap, page, wait); + if (bitmap->file == NULL) { + switch (write_sb_page(bitmap, page, wait)) { + case -EINVAL: + bitmap->flags |= BITMAP_WRITE_ERROR; + } + } else { - bh = page_buffers(page); + bh = page_buffers(page); - while (bh && bh->b_blocknr) { - atomic_inc(&bitmap->pending_writes); - set_buffer_locked(bh); - set_buffer_mapped(bh); - submit_bh(WRITE, bh); - bh = bh->b_this_page; - } + while (bh && bh->b_blocknr) { + atomic_inc(&bitmap->pending_writes); + set_buffer_locked(bh); + set_buffer_mapped(bh); + submit_bh(WRITE, bh); + bh = bh->b_this_page; + } - if (wait) { - wait_event(bitmap->write_wait, - atomic_read(&bitmap->pending_writes)==0); - return (bitmap->flags & BITMAP_WRITE_ERROR) ? -EIO : 0; + if (wait) { + wait_event(bitmap->write_wait, + atomic_read(&bitmap->pending_writes)==0); + } } - return 0; + if (bitmap->flags & BITMAP_WRITE_ERROR) + bitmap_file_kick(bitmap); } static void end_bitmap_write(struct buffer_head *bh, int uptodate) @@ -425,17 +456,17 @@ out: */ /* update the event counter and sync the superblock to disk */ -int bitmap_update_sb(struct bitmap *bitmap) +void bitmap_update_sb(struct bitmap *bitmap) { bitmap_super_t *sb; unsigned long flags; if (!bitmap || !bitmap->mddev) /* no bitmap for this array */ - return 0; + return; spin_lock_irqsave(&bitmap->lock, flags); if (!bitmap->sb_page) { /* no superblock */ spin_unlock_irqrestore(&bitmap->lock, flags); - return 0; + return; } spin_unlock_irqrestore(&bitmap->lock, flags); sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0); @@ -443,7 +474,7 @@ int bitmap_update_sb(struct bitmap *bitmap) if (!bitmap->mddev->degraded) sb->events_cleared = cpu_to_le64(bitmap->mddev->events); kunmap_atomic(sb, KM_USER0); - return write_page(bitmap, bitmap->sb_page, 1); + write_page(bitmap, bitmap->sb_page, 1); } /* print out the bitmap file superblock */ @@ -572,20 +603,22 @@ enum bitmap_mask_op { MASK_UNSET }; -/* record the state of the bitmap in the superblock */ -static void bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits, - enum bitmap_mask_op op) +/* record the state of the bitmap in the superblock. Return the old value */ +static int bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits, + enum bitmap_mask_op op) { bitmap_super_t *sb; unsigned long flags; + int old; spin_lock_irqsave(&bitmap->lock, flags); if (!bitmap->sb_page) { /* can't set the state */ spin_unlock_irqrestore(&bitmap->lock, flags); - return; + return 0; } spin_unlock_irqrestore(&bitmap->lock, flags); sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0); + old = le32_to_cpu(sb->state) & bits; switch (op) { case MASK_SET: sb->state |= cpu_to_le32(bits); break; @@ -594,6 +627,7 @@ static void bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits, default: BUG(); } kunmap_atomic(sb, KM_USER0); + return old; } /* @@ -687,18 +721,23 @@ static void bitmap_file_kick(struct bitmap *bitmap) { char *path, *ptr = NULL; - bitmap_mask_state(bitmap, BITMAP_STALE, MASK_SET); - bitmap_update_sb(bitmap); + if (bitmap_mask_state(bitmap, BITMAP_STALE, MASK_SET) == 0) { + bitmap_update_sb(bitmap); - if (bitmap->file) { - path = kmalloc(PAGE_SIZE, GFP_KERNEL); - if (path) - ptr = file_path(bitmap->file, path, PAGE_SIZE); + if (bitmap->file) { + path = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (path) + ptr = file_path(bitmap->file, path, PAGE_SIZE); - printk(KERN_ALERT "%s: kicking failed bitmap file %s from array!\n", - bmname(bitmap), ptr ? ptr : ""); + printk(KERN_ALERT + "%s: kicking failed bitmap file %s from array!\n", + bmname(bitmap), ptr ? ptr : ""); - kfree(path); + kfree(path); + } else + printk(KERN_ALERT + "%s: disabling internal bitmap due to errors\n", + bmname(bitmap)); } bitmap_file_put(bitmap); @@ -769,16 +808,15 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block) /* this gets called when the md device is ready to unplug its underlying * (slave) device queues -- before we let any writes go down, we need to * sync the dirty pages of the bitmap file to disk */ -int bitmap_unplug(struct bitmap *bitmap) +void bitmap_unplug(struct bitmap *bitmap) { unsigned long i, flags; int dirty, need_write; struct page *page; int wait = 0; - int err; if (!bitmap) - return 0; + return; /* look at each page to see if there are any set bits that need to be * flushed out to disk */ @@ -786,7 +824,7 @@ int bitmap_unplug(struct bitmap *bitmap) spin_lock_irqsave(&bitmap->lock, flags); if (!bitmap->filemap) { spin_unlock_irqrestore(&bitmap->lock, flags); - return 0; + return; } page = bitmap->filemap[i]; dirty = test_page_attr(bitmap, page, BITMAP_PAGE_DIRTY); @@ -798,7 +836,7 @@ int bitmap_unplug(struct bitmap *bitmap) spin_unlock_irqrestore(&bitmap->lock, flags); if (dirty | need_write) - err = write_page(bitmap, page, 0); + write_page(bitmap, page, 0); } if (wait) { /* if any writes were performed, we need to wait on them */ if (bitmap->file) @@ -809,7 +847,6 @@ int bitmap_unplug(struct bitmap *bitmap) } if (bitmap->flags & BITMAP_WRITE_ERROR) bitmap_file_kick(bitmap); - return 0; } static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int needed); @@ -858,21 +895,21 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) bmname(bitmap), (unsigned long) i_size_read(file->f_mapping->host), bytes + sizeof(bitmap_super_t)); - goto out; + goto err; } ret = -ENOMEM; bitmap->filemap = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL); if (!bitmap->filemap) - goto out; + goto err; /* We need 4 bits per page, rounded up to a multiple of sizeof(unsigned long) */ bitmap->filemap_attr = kzalloc( roundup( DIV_ROUND_UP(num_pages*4, 8), sizeof(unsigned long)), GFP_KERNEL); if (!bitmap->filemap_attr) - goto out; + goto err; oldindex = ~0L; @@ -905,7 +942,7 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) } if (IS_ERR(page)) { /* read error */ ret = PTR_ERR(page); - goto out; + goto err; } oldindex = index; @@ -920,11 +957,13 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) memset(paddr + offset, 0xff, PAGE_SIZE - offset); kunmap_atomic(paddr, KM_USER0); - ret = write_page(bitmap, page, 1); - if (ret) { + write_page(bitmap, page, 1); + + ret = -EIO; + if (bitmap->flags & BITMAP_WRITE_ERROR) { /* release, page not in filemap yet */ put_page(page); - goto out; + goto err; } } @@ -956,11 +995,15 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) md_wakeup_thread(bitmap->mddev->thread); } -out: printk(KERN_INFO "%s: bitmap initialized from disk: " - "read %lu/%lu pages, set %lu bits, status: %d\n", - bmname(bitmap), bitmap->file_pages, num_pages, bit_cnt, ret); + "read %lu/%lu pages, set %lu bits\n", + bmname(bitmap), bitmap->file_pages, num_pages, bit_cnt); + + return 0; + err: + printk(KERN_INFO "%s: bitmap initialisation failed: %d\n", + bmname(bitmap), ret); return ret; } @@ -997,19 +1040,18 @@ static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap, * out to disk */ -int bitmap_daemon_work(struct bitmap *bitmap) +void bitmap_daemon_work(struct bitmap *bitmap) { unsigned long j; unsigned long flags; struct page *page = NULL, *lastpage = NULL; - int err = 0; int blocks; void *paddr; if (bitmap == NULL) - return 0; + return; if (time_before(jiffies, bitmap->daemon_lastrun + bitmap->daemon_sleep*HZ)) - return 0; + return; bitmap->daemon_lastrun = jiffies; for (j = 0; j < bitmap->chunks; j++) { @@ -1032,14 +1074,8 @@ int bitmap_daemon_work(struct bitmap *bitmap) clear_page_attr(bitmap, page, BITMAP_PAGE_NEEDWRITE); spin_unlock_irqrestore(&bitmap->lock, flags); - if (need_write) { - switch (write_page(bitmap, page, 0)) { - case 0: - break; - default: - bitmap_file_kick(bitmap); - } - } + if (need_write) + write_page(bitmap, page, 0); continue; } @@ -1048,13 +1084,11 @@ int bitmap_daemon_work(struct bitmap *bitmap) if (test_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE)) { clear_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE); spin_unlock_irqrestore(&bitmap->lock, flags); - err = write_page(bitmap, lastpage, 0); + write_page(bitmap, lastpage, 0); } else { set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE); spin_unlock_irqrestore(&bitmap->lock, flags); } - if (err) - bitmap_file_kick(bitmap); } else spin_unlock_irqrestore(&bitmap->lock, flags); lastpage = page; @@ -1097,14 +1131,13 @@ int bitmap_daemon_work(struct bitmap *bitmap) if (test_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE)) { clear_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE); spin_unlock_irqrestore(&bitmap->lock, flags); - err = write_page(bitmap, lastpage, 0); + write_page(bitmap, lastpage, 0); } else { set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE); spin_unlock_irqrestore(&bitmap->lock, flags); } } - return err; } static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap, @@ -1517,7 +1550,9 @@ int bitmap_create(mddev_t *mddev) mddev->thread->timeout = bitmap->daemon_sleep * HZ; - return bitmap_update_sb(bitmap); + bitmap_update_sb(bitmap); + + return (bitmap->flags & BITMAP_WRITE_ERROR) ? -EIO : 0; error: bitmap_free(bitmap); diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 3d65917a1bbb..8fe81e1807e0 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -623,6 +623,7 @@ int dm_create_persistent(struct exception_store *store) ps->metadata_wq = create_singlethread_workqueue("ksnaphd"); if (!ps->metadata_wq) { + kfree(ps); DMERR("couldn't start header metadata update thread"); return -ENOMEM; } diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 1a876f9965e0..144071e70a93 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -951,13 +951,12 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors, len = sizeof(*ms) + (sizeof(ms->mirror[0]) * nr_mirrors); - ms = kmalloc(len, GFP_KERNEL); + ms = kzalloc(len, GFP_KERNEL); if (!ms) { ti->error = "Cannot allocate mirror context"; return NULL; } - memset(ms, 0, len); spin_lock_init(&ms->lock); ms->ti = ti; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index f4f7d35561ab..846614e676c6 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -161,9 +161,7 @@ static void local_exit(void) { kmem_cache_destroy(_tio_cache); kmem_cache_destroy(_io_cache); - - if (unregister_blkdev(_major, _name) < 0) - DMERR("unregister_blkdev failed"); + unregister_blkdev(_major, _name); _major = 0; diff --git a/drivers/md/md.c b/drivers/md/md.c index 33beaa7da085..65ddc887dfd7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1640,7 +1640,6 @@ static void sync_sbs(mddev_t * mddev, int nospares) static void md_update_sb(mddev_t * mddev, int force_change) { - int err; struct list_head *tmp; mdk_rdev_t *rdev; int sync_req; @@ -1727,7 +1726,7 @@ repeat: "md: updating %s RAID superblock on device (in sync %d)\n", mdname(mddev),mddev->in_sync); - err = bitmap_update_sb(mddev->bitmap); + bitmap_update_sb(mddev->bitmap); ITERATE_RDEV(mddev,rdev,tmp) { char b[BDEVNAME_SIZE]; dprintk(KERN_INFO "md: "); @@ -2073,9 +2072,11 @@ static mdk_rdev_t *md_import_device(dev_t newdev, int super_format, int super_mi err = super_types[super_format]. load_super(rdev, NULL, super_minor); if (err == -EINVAL) { - printk(KERN_WARNING - "md: %s has invalid sb, not importing!\n", - bdevname(rdev->bdev,b)); + printk(KERN_WARNING + "md: %s does not have a valid v%d.%d " + "superblock, not importing!\n", + bdevname(rdev->bdev,b), + super_format, super_minor); goto abort_free; } if (err < 0) { @@ -3174,13 +3175,33 @@ static int do_md_run(mddev_t * mddev) * Drop all container device buffers, from now on * the only valid external interface is through the md * device. - * Also find largest hardsector size */ ITERATE_RDEV(mddev,rdev,tmp) { if (test_bit(Faulty, &rdev->flags)) continue; sync_blockdev(rdev->bdev); invalidate_bdev(rdev->bdev); + + /* perform some consistency tests on the device. + * We don't want the data to overlap the metadata, + * Internal Bitmap issues has handled elsewhere. + */ + if (rdev->data_offset < rdev->sb_offset) { + if (mddev->size && + rdev->data_offset + mddev->size*2 + > rdev->sb_offset*2) { + printk("md: %s: data overlaps metadata\n", + mdname(mddev)); + return -EINVAL; + } + } else { + if (rdev->sb_offset*2 + rdev->sb_size/512 + > rdev->data_offset) { + printk("md: %s: metadata overlaps data\n", + mdname(mddev)); + return -EINVAL; + } + } } md_probe(mddev->unit, NULL, NULL); @@ -4642,7 +4663,6 @@ static int md_thread(void * arg) * many dirty RAID5 blocks. */ - current->flags |= PF_NOFREEZE; allow_signal(SIGKILL); while (!kthread_should_stop()) { @@ -5090,7 +5110,7 @@ static int is_mddev_idle(mddev_t *mddev) mdk_rdev_t * rdev; struct list_head *tmp; int idle; - unsigned long curr_events; + long curr_events; idle = 1; ITERATE_RDEV(mddev,rdev,tmp) { @@ -5098,20 +5118,29 @@ static int is_mddev_idle(mddev_t *mddev) curr_events = disk_stat_read(disk, sectors[0]) + disk_stat_read(disk, sectors[1]) - atomic_read(&disk->sync_io); - /* The difference between curr_events and last_events - * will be affected by any new non-sync IO (making - * curr_events bigger) and any difference in the amount of - * in-flight syncio (making current_events bigger or smaller) - * The amount in-flight is currently limited to - * 32*64K in raid1/10 and 256*PAGE_SIZE in raid5/6 - * which is at most 4096 sectors. - * These numbers are fairly fragile and should be made - * more robust, probably by enforcing the - * 'window size' that md_do_sync sort-of uses. + /* sync IO will cause sync_io to increase before the disk_stats + * as sync_io is counted when a request starts, and + * disk_stats is counted when it completes. + * So resync activity will cause curr_events to be smaller than + * when there was no such activity. + * non-sync IO will cause disk_stat to increase without + * increasing sync_io so curr_events will (eventually) + * be larger than it was before. Once it becomes + * substantially larger, the test below will cause + * the array to appear non-idle, and resync will slow + * down. + * If there is a lot of outstanding resync activity when + * we set last_event to curr_events, then all that activity + * completing might cause the array to appear non-idle + * and resync will be slowed down even though there might + * not have been non-resync activity. This will only + * happen once though. 'last_events' will soon reflect + * the state where there is little or no outstanding + * resync requests, and further resync activity will + * always make curr_events less than last_events. * - * Note: the following is an unsigned comparison. */ - if ((long)curr_events - (long)rdev->last_events > 4096) { + if (curr_events - rdev->last_events > 4096) { rdev->last_events = curr_events; idle = 0; } @@ -5772,7 +5801,7 @@ static void autostart_arrays(int part) for (i = 0; i < dev_cnt; i++) { dev_t dev = detected_devices[i]; - rdev = md_import_device(dev,0, 0); + rdev = md_import_device(dev,0, 90); if (IS_ERR(rdev)) continue; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 46677d7d9980..00c78b77b13d 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1526,8 +1526,7 @@ static void raid1d(mddev_t *mddev) blk_remove_plug(mddev->queue); spin_unlock_irqrestore(&conf->device_lock, flags); /* flush any pending bitmap writes to disk before proceeding w/ I/O */ - if (bitmap_unplug(mddev->bitmap) != 0) - printk("%s: bitmap file write failed!\n", mdname(mddev)); + bitmap_unplug(mddev->bitmap); while (bio) { /* submit pending writes */ struct bio *next = bio->bi_next; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 9eb66c1b523b..a95ada1cfac4 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1510,8 +1510,7 @@ static void raid10d(mddev_t *mddev) blk_remove_plug(mddev->queue); spin_unlock_irqrestore(&conf->device_lock, flags); /* flush any pending bitmap writes to disk before proceeding w/ I/O */ - if (bitmap_unplug(mddev->bitmap) != 0) - printk("%s: bitmap file write failed!\n", mdname(mddev)); + bitmap_unplug(mddev->bitmap); while (bio) { /* submit pending writes */ struct bio *next = bio->bi_next; diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index 624b21cef5b3..d9d033e07e19 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -80,8 +80,12 @@ config VIDEO_BUF_DVB config VIDEO_BTCX tristate +config VIDEO_IR_I2C + tristate + config VIDEO_IR tristate + select VIDEO_IR_I2C if I2C config VIDEO_TVEEPROM tristate diff --git a/drivers/media/common/ir-functions.c b/drivers/media/common/ir-functions.c index fcb194135627..fe447a06e24e 100644 --- a/drivers/media/common/ir-functions.c +++ b/drivers/media/common/ir-functions.c @@ -107,21 +107,20 @@ void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir, } /* -------------------------------------------------------------------------- */ - +/* extract mask bits out of data and pack them into the result */ u32 ir_extract_bits(u32 data, u32 mask) { - int mbit, vbit; - u32 value; + u32 vbit = 1, value = 0; + + do { + if (mask&1) { + if (data&1) + value |= vbit; + vbit<<=1; + } + data>>=1; + } while (mask>>=1); - value = 0; - vbit = 0; - for (mbit = 0; mbit < 32; mbit++) { - if (!(mask & ((u32)1 << mbit))) - continue; - if (data & ((u32)1 << mbit)) - value |= (1 << vbit); - vbit++; - } return value; } diff --git a/drivers/media/common/saa7146_core.c b/drivers/media/common/saa7146_core.c index ef3e54cd9407..ba6701e97671 100644 --- a/drivers/media/common/saa7146_core.c +++ b/drivers/media/common/saa7146_core.c @@ -27,7 +27,7 @@ static int saa7146_num; unsigned int saa7146_debug; -module_param(saa7146_debug, int, 0644); +module_param(saa7146_debug, uint, 0644); MODULE_PARM_DESC(saa7146_debug, "debug level (default: 0)"); #if 0 @@ -130,10 +130,10 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages) /********************************************************************************/ /* common page table functions */ -char *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt) +void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt) { int pages = (length+PAGE_SIZE-1)/PAGE_SIZE; - char *mem = vmalloc_32(length); + void *mem = vmalloc_32(length); int slen = 0; if (NULL == mem) @@ -168,7 +168,7 @@ err_null: return NULL; } -void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, char *mem, struct saa7146_pgtable *pt) +void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt) { pci_unmap_sg(pci, pt->slist, pt->nents, PCI_DMA_FROMDEVICE); saa7146_pgtable_free(pci, pt); diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c index e3d04a4cef4d..664280c78ff2 100644 --- a/drivers/media/common/saa7146_video.c +++ b/drivers/media/common/saa7146_video.c @@ -889,9 +889,9 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int DEB_EE(("VIDIOC_QUERYCAP\n")); - strcpy(cap->driver, "saa7146 v4l2"); - strlcpy(cap->card, dev->ext->name, sizeof(cap->card)); - sprintf(cap->bus_info,"PCI:%s", pci_name(dev->pci)); + strcpy((char *)cap->driver, "saa7146 v4l2"); + strlcpy((char *)cap->card, dev->ext->name, sizeof(cap->card)); + sprintf((char *)cap->bus_info,"PCI:%s", pci_name(dev->pci)); cap->version = SAA7146_VERSION_CODE; cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | @@ -968,7 +968,7 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int } memset(f,0,sizeof(*f)); f->index = index; - strlcpy(f->description,formats[index].name,sizeof(f->description)); + strlcpy((char *)f->description,formats[index].name,sizeof(f->description)); f->pixelformat = formats[index].pixelformat; break; } diff --git a/drivers/media/dvb/b2c2/Kconfig b/drivers/media/dvb/b2c2/Kconfig index a0dcd59da76e..3197aeb61d1f 100644 --- a/drivers/media/dvb/b2c2/Kconfig +++ b/drivers/media/dvb/b2c2/Kconfig @@ -1,7 +1,7 @@ config DVB_B2C2_FLEXCOP tristate "Technisat/B2C2 FlexCopII(b) and FlexCopIII adapters" depends on DVB_CORE && I2C - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_STV0299 if !DVB_FE_CUSTOMISE select DVB_MT352 if !DVB_FE_CUSTOMISE select DVB_MT312 if !DVB_FE_CUSTOMISE diff --git a/drivers/media/dvb/b2c2/Makefile b/drivers/media/dvb/b2c2/Makefile index bff00b58bf65..e97ff60a1eff 100644 --- a/drivers/media/dvb/b2c2/Makefile +++ b/drivers/media/dvb/b2c2/Makefile @@ -12,4 +12,4 @@ obj-$(CONFIG_DVB_B2C2_FLEXCOP_PCI) += b2c2-flexcop-pci.o b2c2-flexcop-usb-objs = flexcop-usb.o obj-$(CONFIG_DVB_B2C2_FLEXCOP_USB) += b2c2-flexcop-usb.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ diff --git a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c index b02c2fd65baa..0378fd646591 100644 --- a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c +++ b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c @@ -500,13 +500,13 @@ int flexcop_frontend_init(struct flexcop_device *fc) /* try the air atsc 2nd generation (nxt2002) */ if ((fc->fe = dvb_attach(nxt200x_attach, &samsung_tbmv_config, &fc->i2c_adap)) != NULL) { fc->dev_type = FC_AIR_ATSC2; - dvb_attach(dvb_pll_attach, fc->fe, 0x61, NULL, &dvb_pll_samsung_tbmv); + dvb_attach(dvb_pll_attach, fc->fe, 0x61, NULL, DVB_PLL_SAMSUNG_TBMV); info("found the nxt2002 at i2c address: 0x%02x",samsung_tbmv_config.demod_address); } else /* try the air atsc 3nd generation (lgdt3303) */ if ((fc->fe = dvb_attach(lgdt330x_attach, &air2pc_atsc_hd5000_config, &fc->i2c_adap)) != NULL) { fc->dev_type = FC_AIR_ATSC3; - dvb_attach(dvb_pll_attach, fc->fe, 0x61, &fc->i2c_adap, &dvb_pll_lg_tdvs_h06xf); + dvb_attach(dvb_pll_attach, fc->fe, 0x61, &fc->i2c_adap, DVB_PLL_LG_TDVS_H06XF); info("found the lgdt3303 at i2c address: 0x%02x",air2pc_atsc_hd5000_config.demod_address); } else /* try the air atsc 1nd generation (bcm3510)/panasonic ct10s */ diff --git a/drivers/media/dvb/bt8xx/Kconfig b/drivers/media/dvb/bt8xx/Kconfig index cfd6fb729a61..ea666174e988 100644 --- a/drivers/media/dvb/bt8xx/Kconfig +++ b/drivers/media/dvb/bt8xx/Kconfig @@ -7,7 +7,7 @@ config DVB_BT8XX select DVB_CX24110 if !DVB_FE_CUSTOMISE select DVB_OR51211 if !DVB_FE_CUSTOMISE select DVB_LGDT330X if !DVB_FE_CUSTOMISE - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_ZL10353 if !DVB_FE_CUSTOMISE select FW_LOADER help diff --git a/drivers/media/dvb/bt8xx/Makefile b/drivers/media/dvb/bt8xx/Makefile index 9d197efb481d..84cf70504d17 100644 --- a/drivers/media/dvb/bt8xx/Makefile +++ b/drivers/media/dvb/bt8xx/Makefile @@ -1,3 +1,3 @@ obj-$(CONFIG_DVB_BT8XX) += bt878.o dvb-bt8xx.o dst.o dst_ca.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/video/bt8xx -Idrivers/media/dvb/frontends +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/video/bt8xx -Idrivers/media/dvb/frontends diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c index e908e3cf1e50..b7a17e69ca4d 100644 --- a/drivers/media/dvb/bt8xx/dst.c +++ b/drivers/media/dvb/bt8xx/dst.c @@ -1652,7 +1652,7 @@ static int dst_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_paramet static int dst_tune_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters* p, unsigned int mode_flags, - int *delay, + unsigned int *delay, fe_status_t *status) { struct dst_state *state = fe->demodulator_priv; diff --git a/drivers/media/dvb/bt8xx/dvb-bt8xx.c b/drivers/media/dvb/bt8xx/dvb-bt8xx.c index 4f1c09bee538..67613eb6fa3d 100644 --- a/drivers/media/dvb/bt8xx/dvb-bt8xx.c +++ b/drivers/media/dvb/bt8xx/dvb-bt8xx.c @@ -611,7 +611,7 @@ static void frontend_init(struct dvb_bt8xx_card *card, u32 type) card->fe = dvb_attach(lgdt330x_attach, &tdvs_tua6034_config, card->i2c_adapter); if (card->fe != NULL) { dvb_attach(dvb_pll_attach, card->fe, 0x61, - card->i2c_adapter, &dvb_pll_lg_tdvs_h06xf); + card->i2c_adapter, DVB_PLL_LG_TDVS_H06XF); dprintk ("dvb_bt8xx: lgdt330x detected\n"); } break; @@ -692,6 +692,9 @@ static void frontend_init(struct dvb_bt8xx_card *card, u32 type) case BTTV_BOARD_PC_HDTV: card->fe = dvb_attach(or51211_attach, &or51211_config, card->i2c_adapter); + if (card->fe != NULL) + dvb_attach(dvb_pll_attach, card->fe, 0x61, + card->i2c_adapter, DVB_PLL_FCV1236D); break; } diff --git a/drivers/media/dvb/cinergyT2/Makefile b/drivers/media/dvb/cinergyT2/Makefile index c51aece20f9f..d762d8cb0cf1 100644 --- a/drivers/media/dvb/cinergyT2/Makefile +++ b/drivers/media/dvb/cinergyT2/Makefile @@ -1,3 +1,3 @@ obj-$(CONFIG_DVB_CINERGYT2) += cinergyT2.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c index b40af48a2edb..28929b618e20 100644 --- a/drivers/media/dvb/cinergyT2/cinergyT2.c +++ b/drivers/media/dvb/cinergyT2/cinergyT2.c @@ -829,7 +829,7 @@ static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) input_dev->id.vendor = cinergyt2->udev->descriptor.idVendor; input_dev->id.product = cinergyt2->udev->descriptor.idProduct; input_dev->id.version = 1; - input_dev->cdev.dev = &cinergyt2->udev->dev; + input_dev->dev.parent = &cinergyt2->udev->dev; err = input_register_device(input_dev); if (err) { @@ -905,12 +905,11 @@ static int cinergyt2_probe (struct usb_interface *intf, struct cinergyt2 *cinergyt2; int err; - if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) { + if (!(cinergyt2 = kzalloc (sizeof(struct cinergyt2), GFP_KERNEL))) { dprintk(1, "out of memory?!?\n"); return -ENOMEM; } - memset (cinergyt2, 0, sizeof (struct cinergyt2)); usb_set_intfdata (intf, (void *) cinergyt2); mutex_init(&cinergyt2->sem); @@ -1000,18 +999,15 @@ static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state) if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->wq_sem)) return -ERESTARTSYS; - if (1) { - cinergyt2_suspend_rc(cinergyt2); - cancel_rearming_delayed_work(&cinergyt2->query_work); + cinergyt2_suspend_rc(cinergyt2); + cancel_rearming_delayed_work(&cinergyt2->query_work); - mutex_lock(&cinergyt2->sem); - if (cinergyt2->streaming) - cinergyt2_stop_stream_xfer(cinergyt2); - cinergyt2_sleep(cinergyt2, 1); - mutex_unlock(&cinergyt2->sem); - } + mutex_lock(&cinergyt2->sem); + if (cinergyt2->streaming) + cinergyt2_stop_stream_xfer(cinergyt2); + cinergyt2_sleep(cinergyt2, 1); + mutex_unlock(&cinergyt2->sem); - mutex_unlock(&cinergyt2->wq_sem); return 0; } diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c index 275df65fde99..5394de2e4ce0 100644 --- a/drivers/media/dvb/dvb-core/dmxdev.c +++ b/drivers/media/dvb/dvb-core/dmxdev.c @@ -97,7 +97,7 @@ static ssize_t dvb_dmxdev_buffer_read(struct dvb_ringbuffer *src, if (avail > todo) avail = todo; - ret = dvb_ringbuffer_read(src, buf, avail, 1); + ret = dvb_ringbuffer_read(src, (u8 *)buf, avail, 1); if (ret < 0) break; diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c index 2a03bf53cb29..4fadddb264d6 100644 --- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c @@ -175,7 +175,7 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot, u8 * e * @param nlen Number of bytes in needle. * @return Pointer into haystack needle was found at, or NULL if not found. */ -static u8 *findstr(u8 * haystack, int hlen, u8 * needle, int nlen) +static char *findstr(char * haystack, int hlen, char * needle, int nlen) { int i; @@ -482,7 +482,7 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot) } /* check it contains the correct DVB string */ - dvb_str = findstr(tuple, tupleLength, "DVB_CI_V", 8); + dvb_str = findstr((char *)tuple, tupleLength, "DVB_CI_V", 8); if (dvb_str == NULL) return -EINVAL; if (tupleLength < ((dvb_str - (char *) tuple) + 12)) @@ -513,8 +513,8 @@ static int dvb_ca_en50221_parse_attributes(struct dvb_ca_private *ca, int slot) ca->slot_info[slot].config_option = tuple[0] & 0x3f; /* OK, check it contains the correct strings */ - if ((findstr(tuple, tupleLength, "DVB_HOST", 8) == NULL) || - (findstr(tuple, tupleLength, "DVB_CI_MODULE", 13) == NULL)) + if ((findstr((char *)tuple, tupleLength, "DVB_HOST", 8) == NULL) || + (findstr((char *)tuple, tupleLength, "DVB_CI_MODULE", 13) == NULL)) break; got_cftableentry = 1; @@ -1300,7 +1300,7 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file, struct dvb_ca_private *ca = dvbdev->priv; u8 slot, connection_id; int status; - char fragbuf[HOST_LINK_BUF_SIZE]; + u8 fragbuf[HOST_LINK_BUF_SIZE]; int fragpos = 0; int fraglen; unsigned long timeout; @@ -1486,7 +1486,7 @@ static ssize_t dvb_ca_en50221_io_read(struct file *file, char __user * buf, } if ((status = dvb_ringbuffer_pkt_read(&ca->slot_info[slot].rx_buffer, idx, 2, - buf + pktlen, fraglen, 1)) < 0) { + (u8 *)buf + pktlen, fraglen, 1)) < 0) { goto exit; } pktlen += fraglen; diff --git a/drivers/media/dvb/dvb-core/dvb_demux.c b/drivers/media/dvb/dvb-core/dvb_demux.c index 6d8d1c3df863..cb6987fce26c 100644 --- a/drivers/media/dvb/dvb-core/dvb_demux.c +++ b/drivers/media/dvb/dvb-core/dvb_demux.c @@ -1068,7 +1068,7 @@ static int dvbdmx_write(struct dmx_demux *demux, const char *buf, size_t count) if (mutex_lock_interruptible(&dvbdemux->mutex)) return -ERESTARTSYS; - dvb_dmx_swfilter(dvbdemux, buf, count); + dvb_dmx_swfilter(dvbdemux, (u8 *)buf, count); mutex_unlock(&dvbdemux->mutex); if (signal_pending(current)) diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index f4e4ca2dcade..b6c7f6610ec5 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -523,6 +523,7 @@ static int dvb_frontend_thread(void *data) dvb_frontend_init(fe); + set_freezable(); while (1) { up(&fepriv->sem); /* is locked when we enter the thread... */ restart: diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h index f233d78bc364..a770a87b9a93 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb/dvb-core/dvb_frontend.h @@ -103,7 +103,7 @@ struct dvb_frontend_ops { int (*tune)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, unsigned int mode_flags, - int *delay, + unsigned int *delay, fe_status_t *status); /* get frontend tuning algorithm from the module */ int (*get_frontend_algo)(struct dvb_frontend *fe); diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c index 4ebf33a5ffa2..acf026342ec5 100644 --- a/drivers/media/dvb/dvb-core/dvb_net.c +++ b/drivers/media/dvb/dvb-core/dvb_net.c @@ -347,7 +347,8 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) { struct dvb_net_priv *priv = dev->priv; unsigned long skipped = 0L; - u8 *ts, *ts_end, *from_where = NULL, ts_remain = 0, how_much = 0, new_ts = 1; + const u8 *ts, *ts_end, *from_where = NULL; + u8 ts_remain = 0, how_much = 0, new_ts = 1; struct ethhdr *ethh = NULL; #ifdef ULE_DEBUG @@ -364,7 +365,7 @@ static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len ) /* For all TS cells in current buffer. * Appearently, we are called for every single TS cell. */ - for (ts = (char *)buf, ts_end = (char *)buf + buf_len; ts < ts_end; /* no default incr. */ ) { + for (ts = buf, ts_end = buf + buf_len; ts < ts_end; /* no default incr. */ ) { if (new_ts) { /* We are about to process a new TS cell. */ diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index a9fa3337dd81..9ef0c00605ee 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -208,7 +208,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, if ((id = dvbdev_get_free_id (adap, type)) < 0){ mutex_unlock(&dvbdev_register_lock); *pdvbdev = NULL; - printk ("%s: could get find free device id...\n", __FUNCTION__); + printk(KERN_ERR "%s: couldn't find free device id\n", __FUNCTION__); return -ENFILE; } @@ -252,7 +252,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, return PTR_ERR(clsdev); } - dprintk("DVB: register adapter%d/%s%d @ minor: %i (0x%02x)\n", + dprintk(KERN_DEBUG "DVB: register adapter%d/%s%d @ minor: %i (0x%02x)\n", adap->num, dnames[type], id, nums2minor(adap->num, type, id), nums2minor(adap->num, type, id)); @@ -311,7 +311,7 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name, struct modu memset (adap, 0, sizeof(struct dvb_adapter)); INIT_LIST_HEAD (&adap->device_list); - printk ("DVB: registering new adapter (%s).\n", name); + printk(KERN_INFO "DVB: registering new adapter (%s)\n", name); adap->num = num; adap->name = name; @@ -407,13 +407,13 @@ static int __init init_dvbdev(void) dev_t dev = MKDEV(DVB_MAJOR, 0); if ((retval = register_chrdev_region(dev, MAX_DVB_MINORS, "DVB")) != 0) { - printk("dvb-core: unable to get major %d\n", DVB_MAJOR); + printk(KERN_ERR "dvb-core: unable to get major %d\n", DVB_MAJOR); return retval; } cdev_init(&dvb_device_cdev, &dvb_device_fops); if ((retval = cdev_add(&dvb_device_cdev, dev, MAX_DVB_MINORS)) != 0) { - printk("dvb-core: unable to get major %d\n", DVB_MAJOR); + printk(KERN_ERR "dvb-core: unable register character device\n"); goto error; } diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig index 54488737a08f..40e41f2f5afe 100644 --- a/drivers/media/dvb/dvb-usb/Kconfig +++ b/drivers/media/dvb/dvb-usb/Kconfig @@ -2,7 +2,6 @@ config DVB_USB tristate "Support for various USB DVB devices" depends on DVB_CORE && USB && I2C select FW_LOADER - select DVB_PLL help By enabling this you will be able to choose the various supported USB1.1 and USB2.0 DVB devices. @@ -27,13 +26,14 @@ config DVB_USB_A800 depends on DVB_USB select DVB_DIB3000MC select DVB_TUNER_MT2060 if !DVB_FE_CUSTOMISE + select DVB_PLL if !DVB_FE_CUSTOMISE help Say Y here to support the AVerMedia AverTV DVB-T USB 2.0 (A800) receiver. config DVB_USB_DIBUSB_MB tristate "DiBcom USB DVB-T devices (based on the DiB3000M-B) (see help for device list)" depends on DVB_USB - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_DIB3000MB select DVB_TUNER_MT2060 if !DVB_FE_CUSTOMISE help @@ -89,7 +89,7 @@ config DVB_USB_DIB0700 config DVB_USB_UMT_010 tristate "HanfTek UMT-010 DVB-T USB2.0 support" depends on DVB_USB - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_DIB3000MC select DVB_TUNER_MT2060 if !DVB_FE_CUSTOMISE help @@ -98,7 +98,7 @@ config DVB_USB_UMT_010 config DVB_USB_CXUSB tristate "Conexant USB2.0 hybrid reference design support" depends on DVB_USB - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_CX22702 if !DVB_FE_CUSTOMISE select DVB_LGDT330X if !DVB_FE_CUSTOMISE select DVB_MT352 if !DVB_FE_CUSTOMISE @@ -142,7 +142,7 @@ config DVB_USB_AU6610 config DVB_USB_DIGITV tristate "Nebula Electronics uDigiTV DVB-T USB2.0 support" depends on DVB_USB - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_NXT6000 if !DVB_FE_CUSTOMISE select DVB_MT352 if !DVB_FE_CUSTOMISE help @@ -188,6 +188,7 @@ config DVB_USB_NOVA_T_USB2 depends on DVB_USB select DVB_DIB3000MC select DVB_TUNER_MT2060 if !DVB_FE_CUSTOMISE + select DVB_PLL if !DVB_FE_CUSTOMISE help Say Y here to support the Hauppauge WinTV-NOVA-T usb2 DVB-T USB2.0 receiver. @@ -216,5 +217,23 @@ config DVB_USB_OPERA1 tristate "Opera1 DVB-S USB2.0 receiver" depends on DVB_USB select DVB_STV0299 if !DVB_FE_CUSTOMISE + select DVB_PLL if !DVB_FE_CUSTOMISE help Say Y here to support the Opera DVB-S USB2.0 receiver. + +config DVB_USB_AF9005 + tristate "Afatech AF9005 DVB-T USB1.1 support" + depends on DVB_USB && EXPERIMENTAL + select DVB_TUNER_MT2060 if !DVB_FE_CUSTOMISE + select DVB_TUNER_QT1010 if !DVB_FE_CUSTOMISE + help + Say Y here to support the Afatech AF9005 based DVB-T USB1.1 receiver + and the TerraTec Cinergy T USB XE (Rev.1) + +config DVB_USB_AF9005_REMOTE + tristate "Afatech AF9005 default remote control support" + depends on DVB_USB_AF9005 + help + Say Y here to support the default remote control decoding for the + Afatech AF9005 based receiver. + diff --git a/drivers/media/dvb/dvb-usb/Makefile b/drivers/media/dvb/dvb-usb/Makefile index 976f840cc904..73ac0a93fdeb 100644 --- a/drivers/media/dvb/dvb-usb/Makefile +++ b/drivers/media/dvb/dvb-usb/Makefile @@ -55,4 +55,10 @@ dvb-usb-opera-objs = opera1.o obj-$(CONFIG_DVB_USB_OPERA1) += dvb-usb-opera.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ +dvb-usb-af9005-objs = af9005.o af9005-fe.o +obj-$(CONFIG_DVB_USB_AF9005) += dvb-usb-af9005.o + +dvb-usb-af9005-remote-objs = af9005-remote.o +obj-$(CONFIG_DVB_USB_AF9005_REMOTE) += dvb-usb-af9005-remote.o + +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ diff --git a/drivers/media/dvb/dvb-usb/af9005-fe.c b/drivers/media/dvb/dvb-usb/af9005-fe.c new file mode 100644 index 000000000000..7195c9461524 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/af9005-fe.c @@ -0,0 +1,1503 @@ +/* Frontend part of the Linux driver for the Afatech 9005 + * USB1.1 DVB-T receiver. + * + * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org) + * + * Thanks to Afatech who kindly provided information. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * see Documentation/dvb/README.dvb-usb for more information + */ +#include "af9005.h" +#include "af9005-script.h" +#include "mt2060.h" +#include "qt1010.h" +#include <asm/div64.h> + +struct af9005_fe_state { + struct dvb_usb_device *d; + struct dvb_frontend *tuner; + + fe_status_t stat; + + /* retraining parameters */ + u32 original_fcw; + u16 original_rf_top; + u16 original_if_top; + u16 original_if_min; + u16 original_aci0_if_top; + u16 original_aci1_if_top; + u16 original_aci0_if_min; + u8 original_if_unplug_th; + u8 original_rf_unplug_th; + u8 original_dtop_if_unplug_th; + u8 original_dtop_rf_unplug_th; + + /* statistics */ + u32 pre_vit_error_count; + u32 pre_vit_bit_count; + u32 ber; + u32 post_vit_error_count; + u32 post_vit_bit_count; + u32 unc; + u16 abort_count; + + int opened; + int strong; + unsigned long next_status_check; + struct dvb_frontend frontend; +}; + +static int af9005_write_word_agc(struct dvb_usb_device *d, u16 reghi, + u16 reglo, u8 pos, u8 len, u16 value) +{ + int ret; + u8 temp; + + if ((ret = af9005_write_ofdm_register(d, reglo, (u8) (value & 0xff)))) + return ret; + temp = (u8) ((value & 0x0300) >> 8); + return af9005_write_register_bits(d, reghi, pos, len, + (u8) ((value & 0x300) >> 8)); +} + +static int af9005_read_word_agc(struct dvb_usb_device *d, u16 reghi, + u16 reglo, u8 pos, u8 len, u16 * value) +{ + int ret; + u8 temp0, temp1; + + if ((ret = af9005_read_ofdm_register(d, reglo, &temp0))) + return ret; + if ((ret = af9005_read_ofdm_register(d, reghi, &temp1))) + return ret; + switch (pos) { + case 0: + *value = ((u16) (temp1 & 0x03) << 8) + (u16) temp0; + break; + case 2: + *value = ((u16) (temp1 & 0x0C) << 6) + (u16) temp0; + break; + case 4: + *value = ((u16) (temp1 & 0x30) << 4) + (u16) temp0; + break; + case 6: + *value = ((u16) (temp1 & 0xC0) << 2) + (u16) temp0; + break; + default: + err("invalid pos in read word agc"); + return -EINVAL; + } + return 0; + +} + +static int af9005_is_fecmon_available(struct dvb_frontend *fe, int *available) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret; + u8 temp; + + *available = false; + + ret = af9005_read_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en, + fec_vtb_rsd_mon_en_pos, + fec_vtb_rsd_mon_en_len, &temp); + if (ret) + return ret; + if (temp & 1) { + ret = + af9005_read_register_bits(state->d, + xd_p_reg_ofsm_read_rbc_en, + reg_ofsm_read_rbc_en_pos, + reg_ofsm_read_rbc_en_len, &temp); + if (ret) + return ret; + if ((temp & 1) == 0) + *available = true; + + } + return 0; +} + +static int af9005_get_post_vit_err_cw_count(struct dvb_frontend *fe, + u32 * post_err_count, + u32 * post_cw_count, + u16 * abort_count) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret; + u32 err_count; + u32 cw_count; + u8 temp, temp0, temp1, temp2; + u16 loc_abort_count; + + *post_err_count = 0; + *post_cw_count = 0; + + /* check if error bit count is ready */ + ret = + af9005_read_register_bits(state->d, xd_r_fec_rsd_ber_rdy, + fec_rsd_ber_rdy_pos, fec_rsd_ber_rdy_len, + &temp); + if (ret) + return ret; + if (!temp) { + deb_info("rsd counter not ready\n"); + return 100; + } + /* get abort count */ + ret = + af9005_read_ofdm_register(state->d, + xd_r_fec_rsd_abort_packet_cnt_7_0, + &temp0); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, + xd_r_fec_rsd_abort_packet_cnt_15_8, + &temp1); + if (ret) + return ret; + loc_abort_count = ((u16) temp1 << 8) + temp0; + + /* get error count */ + ret = + af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_7_0, + &temp0); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_15_8, + &temp1); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_23_16, + &temp2); + if (ret) + return ret; + err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0; + *post_err_count = err_count - (u32) loc_abort_count *8 * 8; + + /* get RSD packet number */ + ret = + af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0, + &temp0); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8, + &temp1); + if (ret) + return ret; + cw_count = ((u32) temp1 << 8) + temp0; + if (cw_count == 0) { + err("wrong RSD packet count"); + return -EIO; + } + deb_info("POST abort count %d err count %d rsd packets %d\n", + loc_abort_count, err_count, cw_count); + *post_cw_count = cw_count - (u32) loc_abort_count; + *abort_count = loc_abort_count; + return 0; + +} + +static int af9005_get_post_vit_ber(struct dvb_frontend *fe, + u32 * post_err_count, u32 * post_cw_count, + u16 * abort_count) +{ + u32 loc_cw_count = 0, loc_err_count; + u16 loc_abort_count; + int ret; + + ret = + af9005_get_post_vit_err_cw_count(fe, &loc_err_count, &loc_cw_count, + &loc_abort_count); + if (ret) + return ret; + *post_err_count = loc_err_count; + *post_cw_count = loc_cw_count * 204 * 8; + *abort_count = loc_abort_count; + + return 0; +} + +static int af9005_get_pre_vit_err_bit_count(struct dvb_frontend *fe, + u32 * pre_err_count, + u32 * pre_bit_count) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + u8 temp, temp0, temp1, temp2; + u32 super_frame_count, x, bits; + int ret; + + ret = + af9005_read_register_bits(state->d, xd_r_fec_vtb_ber_rdy, + fec_vtb_ber_rdy_pos, fec_vtb_ber_rdy_len, + &temp); + if (ret) + return ret; + if (!temp) { + deb_info("viterbi counter not ready\n"); + return 101; /* ERR_APO_VTB_COUNTER_NOT_READY; */ + } + ret = + af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_7_0, + &temp0); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_15_8, + &temp1); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_23_16, + &temp2); + if (ret) + return ret; + *pre_err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0; + + ret = + af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0, + &temp0); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8, + &temp1); + if (ret) + return ret; + super_frame_count = ((u32) temp1 << 8) + temp0; + if (super_frame_count == 0) { + deb_info("super frame count 0\n"); + return 102; + } + + /* read fft mode */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod, + reg_tpsd_txmod_pos, reg_tpsd_txmod_len, + &temp); + if (ret) + return ret; + if (temp == 0) { + /* 2K */ + x = 1512; + } else if (temp == 1) { + /* 8k */ + x = 6048; + } else { + err("Invalid fft mode"); + return -EINVAL; + } + + /* read constellation mode */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_const, + reg_tpsd_const_pos, reg_tpsd_const_len, + &temp); + if (ret) + return ret; + switch (temp) { + case 0: /* QPSK */ + bits = 2; + break; + case 1: /* QAM_16 */ + bits = 4; + break; + case 2: /* QAM_64 */ + bits = 6; + break; + default: + err("invalid constellation mode"); + return -EINVAL; + } + *pre_bit_count = super_frame_count * 68 * 4 * x * bits; + deb_info("PRE err count %d frame count %d bit count %d\n", + *pre_err_count, super_frame_count, *pre_bit_count); + return 0; +} + +static int af9005_reset_pre_viterbi(struct dvb_frontend *fe) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret; + + /* set super frame count to 1 */ + ret = + af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0, + 1 & 0xff); + if (ret) + return ret; + af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8, + 1 >> 8); + if (ret) + return ret; + /* reset pre viterbi error count */ + ret = + af9005_write_register_bits(state->d, xd_p_fec_vtb_ber_rst, + fec_vtb_ber_rst_pos, fec_vtb_ber_rst_len, + 1); + + return ret; +} + +static int af9005_reset_post_viterbi(struct dvb_frontend *fe) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret; + + /* set packet unit */ + ret = + af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0, + 10000 & 0xff); + if (ret) + return ret; + ret = + af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8, + 10000 >> 8); + if (ret) + return ret; + /* reset post viterbi error count */ + ret = + af9005_write_register_bits(state->d, xd_p_fec_rsd_ber_rst, + fec_rsd_ber_rst_pos, fec_rsd_ber_rst_len, + 1); + + return ret; +} + +static int af9005_get_statistic(struct dvb_frontend *fe) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret, fecavailable; + u64 numerator, denominator; + + deb_info("GET STATISTIC\n"); + ret = af9005_is_fecmon_available(fe, &fecavailable); + if (ret) + return ret; + if (!fecavailable) { + deb_info("fecmon not available\n"); + return 0; + } + + ret = af9005_get_pre_vit_err_bit_count(fe, &state->pre_vit_error_count, + &state->pre_vit_bit_count); + if (ret == 0) { + af9005_reset_pre_viterbi(fe); + if (state->pre_vit_bit_count > 0) { + /* according to v 0.0.4 of the dvb api ber should be a multiple + of 10E-9 so we have to multiply the error count by + 10E9=1000000000 */ + numerator = + (u64) state->pre_vit_error_count * (u64) 1000000000; + denominator = (u64) state->pre_vit_bit_count; + state->ber = do_div(numerator, denominator); + } else { + state->ber = 0xffffffff; + } + } + + ret = af9005_get_post_vit_ber(fe, &state->post_vit_error_count, + &state->post_vit_bit_count, + &state->abort_count); + if (ret == 0) { + ret = af9005_reset_post_viterbi(fe); + state->unc += state->abort_count; + if (ret) + return ret; + } + return 0; +} + +static int af9005_fe_refresh_state(struct dvb_frontend *fe) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + if (time_after(jiffies, state->next_status_check)) { + deb_info("REFRESH STATE\n"); + + /* statistics */ + if (af9005_get_statistic(fe)) + err("get_statistic_failed"); + state->next_status_check = jiffies + 250 * HZ / 1000; + } + return 0; +} + +static int af9005_fe_read_status(struct dvb_frontend *fe, fe_status_t * stat) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + u8 temp; + int ret; + + if (state->tuner == NULL) + return -ENODEV; + + *stat = 0; + ret = af9005_read_register_bits(state->d, xd_p_agc_lock, + agc_lock_pos, agc_lock_len, &temp); + if (ret) + return ret; + if (temp) + *stat |= FE_HAS_SIGNAL; + + ret = af9005_read_register_bits(state->d, xd_p_fd_tpsd_lock, + fd_tpsd_lock_pos, fd_tpsd_lock_len, + &temp); + if (ret) + return ret; + if (temp) + *stat |= FE_HAS_CARRIER; + + ret = af9005_read_register_bits(state->d, + xd_r_mp2if_sync_byte_locked, + mp2if_sync_byte_locked_pos, + mp2if_sync_byte_locked_pos, &temp); + if (ret) + return ret; + if (temp) + *stat |= FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_LOCK; + if (state->opened) + af9005_led_control(state->d, *stat & FE_HAS_LOCK); + + ret = + af9005_read_register_bits(state->d, xd_p_reg_strong_sginal_detected, + reg_strong_sginal_detected_pos, + reg_strong_sginal_detected_len, &temp); + if (ret) + return ret; + if (temp != state->strong) { + deb_info("adjust for strong signal %d\n", temp); + state->strong = temp; + } + return 0; +} + +static int af9005_fe_read_ber(struct dvb_frontend *fe, u32 * ber) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + if (state->tuner == NULL) + return -ENODEV; + af9005_fe_refresh_state(fe); + *ber = state->ber; + return 0; +} + +static int af9005_fe_read_unc_blocks(struct dvb_frontend *fe, u32 * unc) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + if (state->tuner == NULL) + return -ENODEV; + af9005_fe_refresh_state(fe); + *unc = state->unc; + return 0; +} + +static int af9005_fe_read_signal_strength(struct dvb_frontend *fe, + u16 * strength) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret; + u8 if_gain, rf_gain; + + if (state->tuner == NULL) + return -ENODEV; + ret = + af9005_read_ofdm_register(state->d, xd_r_reg_aagc_rf_gain, + &rf_gain); + if (ret) + return ret; + ret = + af9005_read_ofdm_register(state->d, xd_r_reg_aagc_if_gain, + &if_gain); + if (ret) + return ret; + /* this value has no real meaning, but i don't have the tables that relate + the rf and if gain with the dbm, so I just scale the value */ + *strength = (512 - rf_gain - if_gain) << 7; + return 0; +} + +static int af9005_fe_read_snr(struct dvb_frontend *fe, u16 * snr) +{ + /* the snr can be derived from the ber and the constellation + but I don't think this kind of complex calculations belong + in the driver. I may be wrong.... */ + return -ENOSYS; +} + +static int af9005_fe_program_cfoe(struct dvb_usb_device *d, fe_bandwidth_t bw) +{ + u8 temp0, temp1, temp2, temp3, buf[4]; + int ret; + u32 NS_coeff1_2048Nu; + u32 NS_coeff1_8191Nu; + u32 NS_coeff1_8192Nu; + u32 NS_coeff1_8193Nu; + u32 NS_coeff2_2k; + u32 NS_coeff2_8k; + + switch (bw) { + case BANDWIDTH_6_MHZ: + NS_coeff1_2048Nu = 0x2ADB6DC; + NS_coeff1_8191Nu = 0xAB7313; + NS_coeff1_8192Nu = 0xAB6DB7; + NS_coeff1_8193Nu = 0xAB685C; + NS_coeff2_2k = 0x156DB6E; + NS_coeff2_8k = 0x55B6DC; + break; + + case BANDWIDTH_7_MHZ: + NS_coeff1_2048Nu = 0x3200001; + NS_coeff1_8191Nu = 0xC80640; + NS_coeff1_8192Nu = 0xC80000; + NS_coeff1_8193Nu = 0xC7F9C0; + NS_coeff2_2k = 0x1900000; + NS_coeff2_8k = 0x640000; + break; + + case BANDWIDTH_8_MHZ: + NS_coeff1_2048Nu = 0x3924926; + NS_coeff1_8191Nu = 0xE4996E; + NS_coeff1_8192Nu = 0xE49249; + NS_coeff1_8193Nu = 0xE48B25; + NS_coeff2_2k = 0x1C92493; + NS_coeff2_8k = 0x724925; + break; + default: + err("Invalid bandwith %d.", bw); + return -EINVAL; + } + + /* + * write NS_coeff1_2048Nu + */ + + temp0 = (u8) (NS_coeff1_2048Nu & 0x000000FF); + temp1 = (u8) ((NS_coeff1_2048Nu & 0x0000FF00) >> 8); + temp2 = (u8) ((NS_coeff1_2048Nu & 0x00FF0000) >> 16); + temp3 = (u8) ((NS_coeff1_2048Nu & 0x03000000) >> 24); + + /* big endian to make 8051 happy */ + buf[0] = temp3; + buf[1] = temp2; + buf[2] = temp1; + buf[3] = temp0; + + /* cfoe_NS_2k_coeff1_25_24 */ + ret = af9005_write_ofdm_register(d, 0xAE00, buf[0]); + if (ret) + return ret; + + /* cfoe_NS_2k_coeff1_23_16 */ + ret = af9005_write_ofdm_register(d, 0xAE01, buf[1]); + if (ret) + return ret; + + /* cfoe_NS_2k_coeff1_15_8 */ + ret = af9005_write_ofdm_register(d, 0xAE02, buf[2]); + if (ret) + return ret; + + /* cfoe_NS_2k_coeff1_7_0 */ + ret = af9005_write_ofdm_register(d, 0xAE03, buf[3]); + if (ret) + return ret; + + /* + * write NS_coeff2_2k + */ + + temp0 = (u8) ((NS_coeff2_2k & 0x0000003F)); + temp1 = (u8) ((NS_coeff2_2k & 0x00003FC0) >> 6); + temp2 = (u8) ((NS_coeff2_2k & 0x003FC000) >> 14); + temp3 = (u8) ((NS_coeff2_2k & 0x01C00000) >> 22); + + /* big endian to make 8051 happy */ + buf[0] = temp3; + buf[1] = temp2; + buf[2] = temp1; + buf[3] = temp0; + + ret = af9005_write_ofdm_register(d, 0xAE04, buf[0]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE05, buf[1]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE06, buf[2]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE07, buf[3]); + if (ret) + return ret; + + /* + * write NS_coeff1_8191Nu + */ + + temp0 = (u8) ((NS_coeff1_8191Nu & 0x000000FF)); + temp1 = (u8) ((NS_coeff1_8191Nu & 0x0000FF00) >> 8); + temp2 = (u8) ((NS_coeff1_8191Nu & 0x00FFC000) >> 16); + temp3 = (u8) ((NS_coeff1_8191Nu & 0x03000000) >> 24); + + /* big endian to make 8051 happy */ + buf[0] = temp3; + buf[1] = temp2; + buf[2] = temp1; + buf[3] = temp0; + + ret = af9005_write_ofdm_register(d, 0xAE08, buf[0]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE09, buf[1]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE0A, buf[2]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE0B, buf[3]); + if (ret) + return ret; + + /* + * write NS_coeff1_8192Nu + */ + + temp0 = (u8) (NS_coeff1_8192Nu & 0x000000FF); + temp1 = (u8) ((NS_coeff1_8192Nu & 0x0000FF00) >> 8); + temp2 = (u8) ((NS_coeff1_8192Nu & 0x00FFC000) >> 16); + temp3 = (u8) ((NS_coeff1_8192Nu & 0x03000000) >> 24); + + /* big endian to make 8051 happy */ + buf[0] = temp3; + buf[1] = temp2; + buf[2] = temp1; + buf[3] = temp0; + + ret = af9005_write_ofdm_register(d, 0xAE0C, buf[0]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE0D, buf[1]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE0E, buf[2]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE0F, buf[3]); + if (ret) + return ret; + + /* + * write NS_coeff1_8193Nu + */ + + temp0 = (u8) ((NS_coeff1_8193Nu & 0x000000FF)); + temp1 = (u8) ((NS_coeff1_8193Nu & 0x0000FF00) >> 8); + temp2 = (u8) ((NS_coeff1_8193Nu & 0x00FFC000) >> 16); + temp3 = (u8) ((NS_coeff1_8193Nu & 0x03000000) >> 24); + + /* big endian to make 8051 happy */ + buf[0] = temp3; + buf[1] = temp2; + buf[2] = temp1; + buf[3] = temp0; + + ret = af9005_write_ofdm_register(d, 0xAE10, buf[0]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE11, buf[1]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE12, buf[2]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE13, buf[3]); + if (ret) + return ret; + + /* + * write NS_coeff2_8k + */ + + temp0 = (u8) ((NS_coeff2_8k & 0x0000003F)); + temp1 = (u8) ((NS_coeff2_8k & 0x00003FC0) >> 6); + temp2 = (u8) ((NS_coeff2_8k & 0x003FC000) >> 14); + temp3 = (u8) ((NS_coeff2_8k & 0x01C00000) >> 22); + + /* big endian to make 8051 happy */ + buf[0] = temp3; + buf[1] = temp2; + buf[2] = temp1; + buf[3] = temp0; + + ret = af9005_write_ofdm_register(d, 0xAE14, buf[0]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE15, buf[1]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE16, buf[2]); + if (ret) + return ret; + + ret = af9005_write_ofdm_register(d, 0xAE17, buf[3]); + return ret; + +} + +static int af9005_fe_select_bw(struct dvb_usb_device *d, fe_bandwidth_t bw) +{ + u8 temp; + switch (bw) { + case BANDWIDTH_6_MHZ: + temp = 0; + break; + case BANDWIDTH_7_MHZ: + temp = 1; + break; + case BANDWIDTH_8_MHZ: + temp = 2; + break; + default: + err("Invalid bandwith %d.", bw); + return -EINVAL; + } + return af9005_write_register_bits(d, xd_g_reg_bw, reg_bw_pos, + reg_bw_len, temp); +} + +static int af9005_fe_power(struct dvb_frontend *fe, int on) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + u8 temp = on; + int ret; + deb_info("power %s tuner\n", on ? "on" : "off"); + ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0); + return ret; +} + +static struct mt2060_config af9005_mt2060_config = { + 0xC0 +}; + +static struct qt1010_config af9005_qt1010_config = { + 0xC4 +}; + +static int af9005_fe_init(struct dvb_frontend *fe) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + struct dvb_usb_adapter *adap = fe->dvb->priv; + int ret, i, scriptlen; + u8 temp, temp0 = 0, temp1 = 0, temp2 = 0; + u8 buf[2]; + u16 if1; + + deb_info("in af9005_fe_init\n"); + + /* reset */ + deb_info("reset\n"); + if ((ret = + af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst_en, + 4, 1, 0x01))) + return ret; + if ((ret = af9005_write_ofdm_register(state->d, APO_REG_RESET, 0))) + return ret; + /* clear ofdm reset */ + deb_info("clear ofdm reset\n"); + for (i = 0; i < 150; i++) { + if ((ret = + af9005_read_ofdm_register(state->d, + xd_I2C_reg_ofdm_rst, &temp))) + return ret; + if (temp & (regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos)) + break; + msleep(10); + } + if (i == 150) + return -ETIMEDOUT; + + /*FIXME in the dump + write B200 A9 + write xd_g_reg_ofsm_clk 7 + read eepr c6 (2) + read eepr c7 (2) + misc ctrl 3 -> 1 + read eepr ca (6) + write xd_g_reg_ofsm_clk 0 + write B200 a1 + */ + ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa9); + if (ret) + return ret; + ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x07); + if (ret) + return ret; + temp = 0x01; + ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0); + if (ret) + return ret; + ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x00); + if (ret) + return ret; + ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa1); + if (ret) + return ret; + + temp = regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos; + if ((ret = + af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst, + reg_ofdm_rst_pos, reg_ofdm_rst_len, 1))) + return ret; + if ((ret = + af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst, + reg_ofdm_rst_pos, reg_ofdm_rst_len, 0))) + return ret; + + if (ret) + return ret; + /* don't know what register aefc is, but this is what the windows driver does */ + ret = af9005_write_ofdm_register(state->d, 0xaefc, 0); + if (ret) + return ret; + + /* set stand alone chip */ + deb_info("set stand alone chip\n"); + if ((ret = + af9005_write_register_bits(state->d, xd_p_reg_dca_stand_alone, + reg_dca_stand_alone_pos, + reg_dca_stand_alone_len, 1))) + return ret; + + /* set dca upper & lower chip */ + deb_info("set dca upper & lower chip\n"); + if ((ret = + af9005_write_register_bits(state->d, xd_p_reg_dca_upper_chip, + reg_dca_upper_chip_pos, + reg_dca_upper_chip_len, 0))) + return ret; + if ((ret = + af9005_write_register_bits(state->d, xd_p_reg_dca_lower_chip, + reg_dca_lower_chip_pos, + reg_dca_lower_chip_len, 0))) + return ret; + + /* set 2wire master clock to 0x14 (for 60KHz) */ + deb_info("set 2wire master clock to 0x14 (for 60KHz)\n"); + if ((ret = + af9005_write_ofdm_register(state->d, xd_I2C_i2c_m_period, 0x14))) + return ret; + + /* clear dca enable chip */ + deb_info("clear dca enable chip\n"); + if ((ret = + af9005_write_register_bits(state->d, xd_p_reg_dca_en, + reg_dca_en_pos, reg_dca_en_len, 0))) + return ret; + /* FIXME these are register bits, but I don't know which ones */ + ret = af9005_write_ofdm_register(state->d, 0xa16c, 1); + if (ret) + return ret; + ret = af9005_write_ofdm_register(state->d, 0xa3c1, 0); + if (ret) + return ret; + + /* init other parameters: program cfoe and select bandwith */ + deb_info("program cfoe\n"); + if ((ret = af9005_fe_program_cfoe(state->d, BANDWIDTH_6_MHZ))) + return ret; + /* set read-update bit for constellation */ + deb_info("set read-update bit for constellation\n"); + if ((ret = + af9005_write_register_bits(state->d, xd_p_reg_feq_read_update, + reg_feq_read_update_pos, + reg_feq_read_update_len, 1))) + return ret; + + /* sample code has a set MPEG TS code here + but sniffing reveals that it doesn't do it */ + + /* set read-update bit to 1 for DCA constellation */ + deb_info("set read-update bit 1 for DCA constellation\n"); + if ((ret = + af9005_write_register_bits(state->d, xd_p_reg_dca_read_update, + reg_dca_read_update_pos, + reg_dca_read_update_len, 1))) + return ret; + + /* enable fec monitor */ + deb_info("enable fec monitor\n"); + if ((ret = + af9005_write_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en, + fec_vtb_rsd_mon_en_pos, + fec_vtb_rsd_mon_en_len, 1))) + return ret; + + /* FIXME should be register bits, I don't know which ones */ + ret = af9005_write_ofdm_register(state->d, 0xa601, 0); + + /* set api_retrain_never_freeze */ + deb_info("set api_retrain_never_freeze\n"); + if ((ret = af9005_write_ofdm_register(state->d, 0xaefb, 0x01))) + return ret; + + /* load init script */ + deb_info("load init script\n"); + scriptlen = sizeof(script) / sizeof(RegDesc); + for (i = 0; i < scriptlen; i++) { + if ((ret = + af9005_write_register_bits(state->d, script[i].reg, + script[i].pos, + script[i].len, script[i].val))) + return ret; + /* save 3 bytes of original fcw */ + if (script[i].reg == 0xae18) + temp2 = script[i].val; + if (script[i].reg == 0xae19) + temp1 = script[i].val; + if (script[i].reg == 0xae1a) + temp0 = script[i].val; + + /* save original unplug threshold */ + if (script[i].reg == xd_p_reg_unplug_th) + state->original_if_unplug_th = script[i].val; + if (script[i].reg == xd_p_reg_unplug_rf_gain_th) + state->original_rf_unplug_th = script[i].val; + if (script[i].reg == xd_p_reg_unplug_dtop_if_gain_th) + state->original_dtop_if_unplug_th = script[i].val; + if (script[i].reg == xd_p_reg_unplug_dtop_rf_gain_th) + state->original_dtop_rf_unplug_th = script[i].val; + + } + state->original_fcw = + ((u32) temp2 << 16) + ((u32) temp1 << 8) + (u32) temp0; + + + /* save original TOPs */ + deb_info("save original TOPs\n"); + + /* RF TOP */ + ret = + af9005_read_word_agc(state->d, + xd_p_reg_aagc_rf_top_numerator_9_8, + xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2, + &state->original_rf_top); + if (ret) + return ret; + + /* IF TOP */ + ret = + af9005_read_word_agc(state->d, + xd_p_reg_aagc_if_top_numerator_9_8, + xd_p_reg_aagc_if_top_numerator_7_0, 0, 2, + &state->original_if_top); + if (ret) + return ret; + + /* ACI 0 IF TOP */ + ret = + af9005_read_word_agc(state->d, 0xA60E, 0xA60A, 4, 2, + &state->original_aci0_if_top); + if (ret) + return ret; + + /* ACI 1 IF TOP */ + ret = + af9005_read_word_agc(state->d, 0xA60E, 0xA60B, 6, 2, + &state->original_aci1_if_top); + if (ret) + return ret; + + /* attach tuner and init */ + if (state->tuner == NULL) { + /* read tuner and board id from eeprom */ + ret = af9005_read_eeprom(adap->dev, 0xc6, buf, 2); + if (ret) { + err("Impossible to read EEPROM\n"); + return ret; + } + deb_info("Tuner id %d, board id %d\n", buf[0], buf[1]); + switch (buf[0]) { + case 2: /* MT2060 */ + /* read if1 from eeprom */ + ret = af9005_read_eeprom(adap->dev, 0xc8, buf, 2); + if (ret) { + err("Impossible to read EEPROM\n"); + return ret; + } + if1 = (u16) (buf[0] << 8) + buf[1]; + state->tuner = + dvb_attach(mt2060_attach, fe, &adap->dev->i2c_adap, + &af9005_mt2060_config, if1); + if (state->tuner == NULL) { + deb_info("MT2060 attach failed\n"); + return -ENODEV; + } + break; + case 3: /* QT1010 */ + case 9: /* QT1010B */ + state->tuner = + dvb_attach(qt1010_attach, fe, &adap->dev->i2c_adap, + &af9005_qt1010_config); + if (state->tuner == NULL) { + deb_info("QT1010 attach failed\n"); + return -ENODEV; + } + break; + default: + err("Unsupported tuner type %d", buf[0]); + return -ENODEV; + } + ret = state->tuner->ops.tuner_ops.init(state->tuner); + if (ret) + return ret; + } + + deb_info("profit!\n"); + return 0; +} + +static int af9005_fe_sleep(struct dvb_frontend *fe) +{ + return af9005_fe_power(fe, 0); +} + +static int af9005_ts_bus_ctrl(struct dvb_frontend *fe, int acquire) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + + if (acquire) { + state->opened++; + } else { + + state->opened--; + if (!state->opened) + af9005_led_control(state->d, 0); + } + return 0; +} + +static int af9005_fe_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *fep) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret; + u8 temp, temp0, temp1, temp2; + + deb_info("af9005_fe_set_frontend freq %d bw %d\n", fep->frequency, + fep->u.ofdm.bandwidth); + if (state->tuner == NULL) { + err("Tuner not attached"); + return -ENODEV; + } + + deb_info("turn off led\n"); + /* not in the log */ + ret = af9005_led_control(state->d, 0); + if (ret) + return ret; + /* not sure about the bits */ + ret = af9005_write_register_bits(state->d, XD_MP2IF_MISC, 2, 1, 0); + if (ret) + return ret; + + /* set FCW to default value */ + deb_info("set FCW to default value\n"); + temp0 = (u8) (state->original_fcw & 0x000000ff); + temp1 = (u8) ((state->original_fcw & 0x0000ff00) >> 8); + temp2 = (u8) ((state->original_fcw & 0x00ff0000) >> 16); + ret = af9005_write_ofdm_register(state->d, 0xae1a, temp0); + if (ret) + return ret; + ret = af9005_write_ofdm_register(state->d, 0xae19, temp1); + if (ret) + return ret; + ret = af9005_write_ofdm_register(state->d, 0xae18, temp2); + if (ret) + return ret; + + /* restore original TOPs */ + deb_info("restore original TOPs\n"); + ret = + af9005_write_word_agc(state->d, + xd_p_reg_aagc_rf_top_numerator_9_8, + xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2, + state->original_rf_top); + if (ret) + return ret; + ret = + af9005_write_word_agc(state->d, + xd_p_reg_aagc_if_top_numerator_9_8, + xd_p_reg_aagc_if_top_numerator_7_0, 0, 2, + state->original_if_top); + if (ret) + return ret; + ret = + af9005_write_word_agc(state->d, 0xA60E, 0xA60A, 4, 2, + state->original_aci0_if_top); + if (ret) + return ret; + ret = + af9005_write_word_agc(state->d, 0xA60E, 0xA60B, 6, 2, + state->original_aci1_if_top); + if (ret) + return ret; + + /* select bandwith */ + deb_info("select bandwidth"); + ret = af9005_fe_select_bw(state->d, fep->u.ofdm.bandwidth); + if (ret) + return ret; + ret = af9005_fe_program_cfoe(state->d, fep->u.ofdm.bandwidth); + if (ret) + return ret; + + /* clear easy mode flag */ + deb_info("clear easy mode flag\n"); + ret = af9005_write_ofdm_register(state->d, 0xaefd, 0); + if (ret) + return ret; + + /* set unplug threshold to original value */ + deb_info("set unplug threshold to original value\n"); + ret = + af9005_write_ofdm_register(state->d, xd_p_reg_unplug_th, + state->original_if_unplug_th); + if (ret) + return ret; + /* set tuner */ + deb_info("set tuner\n"); + ret = state->tuner->ops.tuner_ops.set_params(state->tuner, fep); + if (ret) + return ret; + + /* trigger ofsm */ + deb_info("trigger ofsm\n"); + temp = 0; + ret = af9005_write_tuner_registers(state->d, 0xffff, &temp, 1); + if (ret) + return ret; + + /* clear retrain and freeze flag */ + deb_info("clear retrain and freeze flag\n"); + ret = + af9005_write_register_bits(state->d, + xd_p_reg_api_retrain_request, + reg_api_retrain_request_pos, 2, 0); + if (ret) + return ret; + + /* reset pre viterbi and post viterbi registers and statistics */ + af9005_reset_pre_viterbi(fe); + af9005_reset_post_viterbi(fe); + state->pre_vit_error_count = 0; + state->pre_vit_bit_count = 0; + state->ber = 0; + state->post_vit_error_count = 0; + /* state->unc = 0; commented out since it should be ever increasing */ + state->abort_count = 0; + + state->next_status_check = jiffies; + state->strong = -1; + + return 0; +} + +static int af9005_fe_get_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *fep) +{ + struct af9005_fe_state *state = fe->demodulator_priv; + int ret; + u8 temp; + + /* mode */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_const, + reg_tpsd_const_pos, reg_tpsd_const_len, + &temp); + if (ret) + return ret; + deb_info("===== fe_get_frontend ==============\n"); + deb_info("CONSTELLATION "); + switch (temp) { + case 0: + fep->u.ofdm.constellation = QPSK; + deb_info("QPSK\n"); + break; + case 1: + fep->u.ofdm.constellation = QAM_16; + deb_info("QAM_16\n"); + break; + case 2: + fep->u.ofdm.constellation = QAM_64; + deb_info("QAM_64\n"); + break; + } + + /* tps hierarchy and alpha value */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_hier, + reg_tpsd_hier_pos, reg_tpsd_hier_len, + &temp); + if (ret) + return ret; + deb_info("HIERARCHY "); + switch (temp) { + case 0: + fep->u.ofdm.hierarchy_information = HIERARCHY_NONE; + deb_info("NONE\n"); + break; + case 1: + fep->u.ofdm.hierarchy_information = HIERARCHY_1; + deb_info("1\n"); + break; + case 2: + fep->u.ofdm.hierarchy_information = HIERARCHY_2; + deb_info("2\n"); + break; + case 3: + fep->u.ofdm.hierarchy_information = HIERARCHY_4; + deb_info("4\n"); + break; + } + + /* high/low priority */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_dec_pri, + reg_dec_pri_pos, reg_dec_pri_len, &temp); + if (ret) + return ret; + /* if temp is set = high priority */ + deb_info("PRIORITY %s\n", temp ? "high" : "low"); + + /* high coderate */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_hpcr, + reg_tpsd_hpcr_pos, reg_tpsd_hpcr_len, + &temp); + if (ret) + return ret; + deb_info("CODERATE HP "); + switch (temp) { + case 0: + fep->u.ofdm.code_rate_HP = FEC_1_2; + deb_info("FEC_1_2\n"); + break; + case 1: + fep->u.ofdm.code_rate_HP = FEC_2_3; + deb_info("FEC_2_3\n"); + break; + case 2: + fep->u.ofdm.code_rate_HP = FEC_3_4; + deb_info("FEC_3_4\n"); + break; + case 3: + fep->u.ofdm.code_rate_HP = FEC_5_6; + deb_info("FEC_5_6\n"); + break; + case 4: + fep->u.ofdm.code_rate_HP = FEC_7_8; + deb_info("FEC_7_8\n"); + break; + } + + /* low coderate */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_lpcr, + reg_tpsd_lpcr_pos, reg_tpsd_lpcr_len, + &temp); + if (ret) + return ret; + deb_info("CODERATE LP "); + switch (temp) { + case 0: + fep->u.ofdm.code_rate_LP = FEC_1_2; + deb_info("FEC_1_2\n"); + break; + case 1: + fep->u.ofdm.code_rate_LP = FEC_2_3; + deb_info("FEC_2_3\n"); + break; + case 2: + fep->u.ofdm.code_rate_LP = FEC_3_4; + deb_info("FEC_3_4\n"); + break; + case 3: + fep->u.ofdm.code_rate_LP = FEC_5_6; + deb_info("FEC_5_6\n"); + break; + case 4: + fep->u.ofdm.code_rate_LP = FEC_7_8; + deb_info("FEC_7_8\n"); + break; + } + + /* guard interval */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_gi, + reg_tpsd_gi_pos, reg_tpsd_gi_len, &temp); + if (ret) + return ret; + deb_info("GUARD INTERVAL "); + switch (temp) { + case 0: + fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_32; + deb_info("1_32\n"); + break; + case 1: + fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_16; + deb_info("1_16\n"); + break; + case 2: + fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_8; + deb_info("1_8\n"); + break; + case 3: + fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_4; + deb_info("1_4\n"); + break; + } + + /* fft */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod, + reg_tpsd_txmod_pos, reg_tpsd_txmod_len, + &temp); + if (ret) + return ret; + deb_info("TRANSMISSION MODE "); + switch (temp) { + case 0: + fep->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K; + deb_info("2K\n"); + break; + case 1: + fep->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K; + deb_info("8K\n"); + break; + } + + /* bandwidth */ + ret = + af9005_read_register_bits(state->d, xd_g_reg_bw, reg_bw_pos, + reg_bw_len, &temp); + deb_info("BANDWIDTH "); + switch (temp) { + case 0: + fep->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; + deb_info("6\n"); + break; + case 1: + fep->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; + deb_info("7\n"); + break; + case 2: + fep->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; + deb_info("8\n"); + break; + } + return 0; +} + +static void af9005_fe_release(struct dvb_frontend *fe) +{ + struct af9005_fe_state *state = + (struct af9005_fe_state *)fe->demodulator_priv; + if (state->tuner != NULL && state->tuner->ops.tuner_ops.release != NULL) { + state->tuner->ops.tuner_ops.release(state->tuner); +#ifdef CONFIG_DVB_CORE_ATTACH + symbol_put_addr(state->tuner->ops.tuner_ops.release); +#endif + } + kfree(state); +} + +static struct dvb_frontend_ops af9005_fe_ops; + +struct dvb_frontend *af9005_fe_attach(struct dvb_usb_device *d) +{ + struct af9005_fe_state *state = NULL; + + /* allocate memory for the internal state */ + state = kzalloc(sizeof(struct af9005_fe_state), GFP_KERNEL); + if (state == NULL) + goto error; + + deb_info("attaching frontend af9005\n"); + + state->d = d; + state->tuner = NULL; + state->opened = 0; + + memcpy(&state->frontend.ops, &af9005_fe_ops, + sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + + return &state->frontend; + error: + return NULL; +} + +static struct dvb_frontend_ops af9005_fe_ops = { + .info = { + .name = "AF9005 USB DVB-T", + .type = FE_OFDM, + .frequency_min = 44250000, + .frequency_max = 867250000, + .frequency_stepsize = 250000, + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | + FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | + FE_CAN_HIERARCHY_AUTO, + }, + + .release = af9005_fe_release, + + .init = af9005_fe_init, + .sleep = af9005_fe_sleep, + .ts_bus_ctrl = af9005_ts_bus_ctrl, + + .set_frontend = af9005_fe_set_frontend, + .get_frontend = af9005_fe_get_frontend, + + .read_status = af9005_fe_read_status, + .read_ber = af9005_fe_read_ber, + .read_signal_strength = af9005_fe_read_signal_strength, + .read_snr = af9005_fe_read_snr, + .read_ucblocks = af9005_fe_read_unc_blocks, +}; diff --git a/drivers/media/dvb/dvb-usb/af9005-remote.c b/drivers/media/dvb/dvb-usb/af9005-remote.c new file mode 100644 index 000000000000..ff00c0e8f4a1 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/af9005-remote.c @@ -0,0 +1,157 @@ +/* DVB USB compliant Linux driver for the Afatech 9005 + * USB1.1 DVB-T receiver. + * + * Standard remote decode function + * + * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org) + * + * Thanks to Afatech who kindly provided information. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * see Documentation/dvb/REDME.dvb-usb for more information + */ +#include "af9005.h" +/* debug */ +int dvb_usb_af9005_remote_debug; +module_param_named(debug, dvb_usb_af9005_remote_debug, int, 0644); +MODULE_PARM_DESC(debug, + "enable (1) or disable (0) debug messages." + DVB_USB_DEBUG_STATUS); + +#define deb_decode(args...) dprintk(dvb_usb_af9005_remote_debug,0x01,args) + +struct dvb_usb_rc_key af9005_rc_keys[] = { + + {0x01, 0xb7, KEY_POWER}, + {0x01, 0xa7, KEY_VOLUMEUP}, + {0x01, 0x87, KEY_CHANNELUP}, + {0x01, 0x7f, KEY_MUTE}, + {0x01, 0xbf, KEY_VOLUMEDOWN}, + {0x01, 0x3f, KEY_CHANNELDOWN}, + {0x01, 0xdf, KEY_1}, + {0x01, 0x5f, KEY_2}, + {0x01, 0x9f, KEY_3}, + {0x01, 0x1f, KEY_4}, + {0x01, 0xef, KEY_5}, + {0x01, 0x6f, KEY_6}, + {0x01, 0xaf, KEY_7}, + {0x01, 0x27, KEY_8}, + {0x01, 0x07, KEY_9}, + {0x01, 0xcf, KEY_ZOOM}, + {0x01, 0x4f, KEY_0}, + {0x01, 0x8f, KEY_GOTO}, /* marked jump on the remote */ + + {0x00, 0xbd, KEY_POWER}, + {0x00, 0x7d, KEY_VOLUMEUP}, + {0x00, 0xfd, KEY_CHANNELUP}, + {0x00, 0x9d, KEY_MUTE}, + {0x00, 0x5d, KEY_VOLUMEDOWN}, + {0x00, 0xdd, KEY_CHANNELDOWN}, + {0x00, 0xad, KEY_1}, + {0x00, 0x6d, KEY_2}, + {0x00, 0xed, KEY_3}, + {0x00, 0x8d, KEY_4}, + {0x00, 0x4d, KEY_5}, + {0x00, 0xcd, KEY_6}, + {0x00, 0xb5, KEY_7}, + {0x00, 0x75, KEY_8}, + {0x00, 0xf5, KEY_9}, + {0x00, 0x95, KEY_ZOOM}, + {0x00, 0x55, KEY_0}, + {0x00, 0xd5, KEY_GOTO}, /* marked jump on the remote */ +}; + +int af9005_rc_keys_size = ARRAY_SIZE(af9005_rc_keys); + +static int repeatable_keys[] = { + KEY_VOLUMEUP, + KEY_VOLUMEDOWN, + KEY_CHANNELUP, + KEY_CHANNELDOWN +}; + +int af9005_rc_decode(struct dvb_usb_device *d, u8 * data, int len, u32 * event, + int *state) +{ + u16 mark, space; + u32 result; + u8 cust, dat, invdat; + int i; + + if (len >= 6) { + mark = (u16) (data[0] << 8) + data[1]; + space = (u16) (data[2] << 8) + data[3]; + if (space * 3 < mark) { + for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) { + if (d->last_event == repeatable_keys[i]) { + *state = REMOTE_KEY_REPEAT; + *event = d->last_event; + deb_decode("repeat key, event %x\n", + *event); + return 0; + } + } + deb_decode("repeated key ignored (non repeatable)\n"); + return 0; + } else if (len >= 33 * 4) { /*32 bits + start code */ + result = 0; + for (i = 4; i < 4 + 32 * 4; i += 4) { + result <<= 1; + mark = (u16) (data[i] << 8) + data[i + 1]; + mark >>= 1; + space = (u16) (data[i + 2] << 8) + data[i + 3]; + space >>= 1; + if (mark * 2 > space) + result += 1; + } + deb_decode("key pressed, raw value %x\n", result); + if ((result & 0xff000000) != 0xfe000000) { + deb_decode + ("doesn't start with 0xfe, ignored\n"); + return 0; + } + cust = (result >> 16) & 0xff; + dat = (result >> 8) & 0xff; + invdat = (~result) & 0xff; + if (dat != invdat) { + deb_decode("code != inverted code\n"); + return 0; + } + for (i = 0; i < af9005_rc_keys_size; i++) { + if (af9005_rc_keys[i].custom == cust + && af9005_rc_keys[i].data == dat) { + *event = af9005_rc_keys[i].event; + *state = REMOTE_KEY_PRESSED; + deb_decode + ("key pressed, event %x\n", *event); + return 0; + } + } + deb_decode("not found in table\n"); + } + } + return 0; +} + +EXPORT_SYMBOL(af9005_rc_keys); +EXPORT_SYMBOL(af9005_rc_keys_size); +EXPORT_SYMBOL(af9005_rc_decode); + +MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>"); +MODULE_DESCRIPTION + ("Standard remote control decoder for Afatech 9005 DVB-T USB1.1 stick"); +MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/dvb-usb/af9005-script.h b/drivers/media/dvb/dvb-usb/af9005-script.h new file mode 100644 index 000000000000..6eeaae51b1ca --- /dev/null +++ b/drivers/media/dvb/dvb-usb/af9005-script.h @@ -0,0 +1,203 @@ +/* +File automatically generated by createinit.py using data +extracted from AF05BDA.sys (windows driver): + +dd if=AF05BDA.sys of=initsequence bs=1 skip=88316 count=1110 +python createinit.py > af9005-script.h + +*/ + +typedef struct { + u16 reg; + u8 pos; + u8 len; + u8 val; +} RegDesc; + +RegDesc script[] = { + {0xa180, 0x0, 0x8, 0xa}, + {0xa181, 0x0, 0x8, 0xd7}, + {0xa182, 0x0, 0x8, 0xa3}, + {0xa0a0, 0x0, 0x8, 0x0}, + {0xa0a1, 0x0, 0x5, 0x0}, + {0xa0a1, 0x5, 0x1, 0x1}, + {0xa0c0, 0x0, 0x4, 0x1}, + {0xa20e, 0x4, 0x4, 0xa}, + {0xa20f, 0x0, 0x8, 0x40}, + {0xa210, 0x0, 0x8, 0x8}, + {0xa32a, 0x0, 0x4, 0xa}, + {0xa32c, 0x0, 0x8, 0x20}, + {0xa32b, 0x0, 0x8, 0x15}, + {0xa1a0, 0x1, 0x1, 0x1}, + {0xa000, 0x0, 0x1, 0x1}, + {0xa000, 0x1, 0x1, 0x0}, + {0xa001, 0x1, 0x1, 0x1}, + {0xa001, 0x0, 0x1, 0x0}, + {0xa001, 0x5, 0x1, 0x0}, + {0xa00e, 0x0, 0x5, 0x10}, + {0xa00f, 0x0, 0x3, 0x4}, + {0xa00f, 0x3, 0x3, 0x5}, + {0xa010, 0x0, 0x3, 0x4}, + {0xa010, 0x3, 0x3, 0x5}, + {0xa016, 0x4, 0x4, 0x3}, + {0xa01f, 0x0, 0x6, 0xa}, + {0xa020, 0x0, 0x6, 0xa}, + {0xa2bc, 0x0, 0x1, 0x1}, + {0xa2bc, 0x5, 0x1, 0x1}, + {0xa015, 0x0, 0x8, 0x50}, + {0xa016, 0x0, 0x1, 0x0}, + {0xa02a, 0x0, 0x8, 0x50}, + {0xa029, 0x0, 0x8, 0x4b}, + {0xa614, 0x0, 0x8, 0x46}, + {0xa002, 0x0, 0x5, 0x19}, + {0xa003, 0x0, 0x5, 0x1a}, + {0xa004, 0x0, 0x5, 0x19}, + {0xa005, 0x0, 0x5, 0x1a}, + {0xa008, 0x0, 0x8, 0x69}, + {0xa009, 0x0, 0x2, 0x2}, + {0xae1b, 0x0, 0x8, 0x69}, + {0xae1c, 0x0, 0x8, 0x2}, + {0xae1d, 0x0, 0x8, 0x2a}, + {0xa022, 0x0, 0x8, 0xaa}, + {0xa006, 0x0, 0x8, 0xc8}, + {0xa007, 0x0, 0x2, 0x0}, + {0xa00c, 0x0, 0x8, 0xba}, + {0xa00d, 0x0, 0x2, 0x2}, + {0xa608, 0x0, 0x8, 0xba}, + {0xa60e, 0x0, 0x2, 0x2}, + {0xa609, 0x0, 0x8, 0x80}, + {0xa60e, 0x2, 0x2, 0x3}, + {0xa00a, 0x0, 0x8, 0xb6}, + {0xa00b, 0x0, 0x2, 0x0}, + {0xa011, 0x0, 0x8, 0xb9}, + {0xa012, 0x0, 0x2, 0x0}, + {0xa013, 0x0, 0x8, 0xbd}, + {0xa014, 0x0, 0x2, 0x2}, + {0xa366, 0x0, 0x1, 0x1}, + {0xa2bc, 0x3, 0x1, 0x0}, + {0xa2bd, 0x0, 0x8, 0xa}, + {0xa2be, 0x0, 0x8, 0x14}, + {0xa2bf, 0x0, 0x8, 0x8}, + {0xa60a, 0x0, 0x8, 0xbd}, + {0xa60e, 0x4, 0x2, 0x2}, + {0xa60b, 0x0, 0x8, 0x86}, + {0xa60e, 0x6, 0x2, 0x3}, + {0xa001, 0x2, 0x2, 0x1}, + {0xa1c7, 0x0, 0x8, 0xf5}, + {0xa03d, 0x0, 0x8, 0xb1}, + {0xa616, 0x0, 0x8, 0xff}, + {0xa617, 0x0, 0x8, 0xad}, + {0xa618, 0x0, 0x8, 0xad}, + {0xa61e, 0x3, 0x1, 0x1}, + {0xae1a, 0x0, 0x8, 0x0}, + {0xae19, 0x0, 0x8, 0xc8}, + {0xae18, 0x0, 0x8, 0x61}, + {0xa140, 0x0, 0x8, 0x0}, + {0xa141, 0x0, 0x8, 0xc8}, + {0xa142, 0x0, 0x7, 0x61}, + {0xa023, 0x0, 0x8, 0xff}, + {0xa021, 0x0, 0x8, 0xad}, + {0xa026, 0x0, 0x1, 0x0}, + {0xa024, 0x0, 0x8, 0xff}, + {0xa025, 0x0, 0x8, 0xff}, + {0xa1c8, 0x0, 0x8, 0xf}, + {0xa2bc, 0x1, 0x1, 0x0}, + {0xa60c, 0x0, 0x4, 0x5}, + {0xa60c, 0x4, 0x4, 0x6}, + {0xa60d, 0x0, 0x8, 0xa}, + {0xa371, 0x0, 0x1, 0x1}, + {0xa366, 0x1, 0x3, 0x7}, + {0xa338, 0x0, 0x8, 0x10}, + {0xa339, 0x0, 0x6, 0x7}, + {0xa33a, 0x0, 0x6, 0x1f}, + {0xa33b, 0x0, 0x8, 0xf6}, + {0xa33c, 0x3, 0x5, 0x4}, + {0xa33d, 0x4, 0x4, 0x0}, + {0xa33d, 0x1, 0x1, 0x1}, + {0xa33d, 0x2, 0x1, 0x1}, + {0xa33d, 0x3, 0x1, 0x1}, + {0xa16d, 0x0, 0x4, 0xf}, + {0xa161, 0x0, 0x5, 0x5}, + {0xa162, 0x0, 0x4, 0x5}, + {0xa165, 0x0, 0x8, 0xff}, + {0xa166, 0x0, 0x8, 0x9c}, + {0xa2c3, 0x0, 0x4, 0x5}, + {0xa61a, 0x0, 0x6, 0xf}, + {0xb200, 0x0, 0x8, 0xa1}, + {0xb201, 0x0, 0x8, 0x7}, + {0xa093, 0x0, 0x1, 0x0}, + {0xa093, 0x1, 0x5, 0xf}, + {0xa094, 0x0, 0x8, 0xff}, + {0xa095, 0x0, 0x8, 0xf}, + {0xa080, 0x2, 0x5, 0x3}, + {0xa081, 0x0, 0x4, 0x0}, + {0xa081, 0x4, 0x4, 0x9}, + {0xa082, 0x0, 0x5, 0x1f}, + {0xa08d, 0x0, 0x8, 0x1}, + {0xa083, 0x0, 0x8, 0x32}, + {0xa084, 0x0, 0x1, 0x0}, + {0xa08e, 0x0, 0x8, 0x3}, + {0xa085, 0x0, 0x8, 0x32}, + {0xa086, 0x0, 0x3, 0x0}, + {0xa087, 0x0, 0x8, 0x6e}, + {0xa088, 0x0, 0x5, 0x15}, + {0xa089, 0x0, 0x8, 0x0}, + {0xa08a, 0x0, 0x5, 0x19}, + {0xa08b, 0x0, 0x8, 0x92}, + {0xa08c, 0x0, 0x5, 0x1c}, + {0xa120, 0x0, 0x8, 0x0}, + {0xa121, 0x0, 0x5, 0x10}, + {0xa122, 0x0, 0x8, 0x0}, + {0xa123, 0x0, 0x7, 0x40}, + {0xa123, 0x7, 0x1, 0x0}, + {0xa124, 0x0, 0x8, 0x13}, + {0xa125, 0x0, 0x7, 0x10}, + {0xa1c0, 0x0, 0x8, 0x0}, + {0xa1c1, 0x0, 0x5, 0x4}, + {0xa1c2, 0x0, 0x8, 0x0}, + {0xa1c3, 0x0, 0x5, 0x10}, + {0xa1c3, 0x5, 0x3, 0x0}, + {0xa1c4, 0x0, 0x6, 0x0}, + {0xa1c5, 0x0, 0x7, 0x10}, + {0xa100, 0x0, 0x8, 0x0}, + {0xa101, 0x0, 0x5, 0x10}, + {0xa102, 0x0, 0x8, 0x0}, + {0xa103, 0x0, 0x7, 0x40}, + {0xa103, 0x7, 0x1, 0x0}, + {0xa104, 0x0, 0x8, 0x18}, + {0xa105, 0x0, 0x7, 0xa}, + {0xa106, 0x0, 0x8, 0x20}, + {0xa107, 0x0, 0x8, 0x40}, + {0xa108, 0x0, 0x4, 0x0}, + {0xa38c, 0x0, 0x8, 0xfc}, + {0xa38d, 0x0, 0x8, 0x0}, + {0xa38e, 0x0, 0x8, 0x7e}, + {0xa38f, 0x0, 0x8, 0x0}, + {0xa390, 0x0, 0x8, 0x2f}, + {0xa60f, 0x5, 0x1, 0x1}, + {0xa170, 0x0, 0x8, 0xdc}, + {0xa171, 0x0, 0x2, 0x0}, + {0xa2ae, 0x0, 0x1, 0x1}, + {0xa2ae, 0x1, 0x1, 0x1}, + {0xa392, 0x0, 0x1, 0x1}, + {0xa391, 0x2, 0x1, 0x0}, + {0xabc1, 0x0, 0x8, 0xff}, + {0xabc2, 0x0, 0x8, 0x0}, + {0xabc8, 0x0, 0x8, 0x8}, + {0xabca, 0x0, 0x8, 0x10}, + {0xabcb, 0x0, 0x1, 0x0}, + {0xabc3, 0x5, 0x3, 0x7}, + {0xabc0, 0x6, 0x1, 0x0}, + {0xabc0, 0x4, 0x2, 0x0}, + {0xa344, 0x4, 0x4, 0x1}, + {0xabc0, 0x7, 0x1, 0x1}, + {0xabc0, 0x2, 0x1, 0x1}, + {0xa345, 0x0, 0x8, 0x66}, + {0xa346, 0x0, 0x8, 0x66}, + {0xa347, 0x0, 0x4, 0x0}, + {0xa343, 0x0, 0x4, 0xa}, + {0xa347, 0x4, 0x4, 0x2}, + {0xa348, 0x0, 0x4, 0xc}, + {0xa348, 0x4, 0x4, 0x7}, + {0xa349, 0x0, 0x6, 0x2}, +}; diff --git a/drivers/media/dvb/dvb-usb/af9005.c b/drivers/media/dvb/dvb-usb/af9005.c new file mode 100644 index 000000000000..7db6eee50e39 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/af9005.c @@ -0,0 +1,1141 @@ +/* DVB USB compliant Linux driver for the Afatech 9005 + * USB1.1 DVB-T receiver. + * + * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org) + * + * Thanks to Afatech who kindly provided information. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * see Documentation/dvb/REDME.dvb-usb for more information + */ +#include "af9005.h" + +/* debug */ +int dvb_usb_af9005_debug; +module_param_named(debug, dvb_usb_af9005_debug, int, 0644); +MODULE_PARM_DESC(debug, + "set debugging level (1=info,xfer=2,rc=4,reg=8,i2c=16,fw=32 (or-able))." + DVB_USB_DEBUG_STATUS); +/* enable obnoxious led */ +int dvb_usb_af9005_led = 1; +module_param_named(led, dvb_usb_af9005_led, bool, 0644); +MODULE_PARM_DESC(led, "enable led (default: 1)."); + +/* eeprom dump */ +int dvb_usb_af9005_dump_eeprom = 0; +module_param_named(dump_eeprom, dvb_usb_af9005_dump_eeprom, int, 0); +MODULE_PARM_DESC(dump_eeprom, "dump contents of the eeprom."); + +/* remote control decoder */ +int (*rc_decode) (struct dvb_usb_device * d, u8 * data, int len, u32 * event, + int *state); +void *rc_keys; +int *rc_keys_size; + +u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff }; + +struct af9005_device_state { + u8 sequence; + int led_state; +}; + +int af9005_usb_generic_rw(struct dvb_usb_device *d, u8 * wbuf, u16 wlen, + u8 * rbuf, u16 rlen, int delay_ms) +{ + int actlen, ret = -ENOMEM; + + if (wbuf == NULL || wlen == 0) + return -EINVAL; + + if ((ret = mutex_lock_interruptible(&d->usb_mutex))) + return ret; + + deb_xfer(">>> "); + debug_dump(wbuf, wlen, deb_xfer); + + ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev, + 2), wbuf, wlen, + &actlen, 2000); + + if (ret) + err("bulk message failed: %d (%d/%d)", ret, wlen, actlen); + else + ret = actlen != wlen ? -1 : 0; + + /* an answer is expected, and no error before */ + if (!ret && rbuf && rlen) { + if (delay_ms) + msleep(delay_ms); + + ret = usb_bulk_msg(d->udev, usb_rcvbulkpipe(d->udev, + 0x01), rbuf, + rlen, &actlen, 2000); + + if (ret) + err("recv bulk message failed: %d", ret); + else { + deb_xfer("<<< "); + debug_dump(rbuf, actlen, deb_xfer); + } + } + + mutex_unlock(&d->usb_mutex); + return ret; +} + +int af9005_usb_generic_write(struct dvb_usb_device *d, u8 * buf, u16 len) +{ + return af9005_usb_generic_rw(d, buf, len, NULL, 0, 0); +} + +int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg, + int readwrite, int type, u8 * values, int len) +{ + struct af9005_device_state *st = d->priv; + u8 obuf[16] = { 0 }; + u8 ibuf[17] = { 0 }; + u8 command; + int i; + int ret; + + if (len < 1) { + err("generic read/write, less than 1 byte. Makes no sense."); + return -EINVAL; + } + if (len > 8) { + err("generic read/write, more than 8 bytes. Not supported."); + return -EINVAL; + } + + obuf[0] = 14; /* rest of buffer length low */ + obuf[1] = 0; /* rest of buffer length high */ + + obuf[2] = AF9005_REGISTER_RW; /* register operation */ + obuf[3] = 12; /* rest of buffer length */ + + obuf[4] = st->sequence++; /* sequence number */ + + obuf[5] = (u8) (reg >> 8); /* register address */ + obuf[6] = (u8) (reg & 0xff); + + if (type == AF9005_OFDM_REG) { + command = AF9005_CMD_OFDM_REG; + } else { + command = AF9005_CMD_TUNER; + } + + if (len > 1) + command |= + AF9005_CMD_BURST | AF9005_CMD_AUTOINC | (len - 1) << 3; + command |= readwrite; + if (readwrite == AF9005_CMD_WRITE) + for (i = 0; i < len; i++) + obuf[8 + i] = values[i]; + else if (type == AF9005_TUNER_REG) + /* read command for tuner, the first byte contains the i2c address */ + obuf[8] = values[0]; + obuf[7] = command; + + ret = af9005_usb_generic_rw(d, obuf, 16, ibuf, 17, 0); + if (ret) + return ret; + + /* sanity check */ + if (ibuf[2] != AF9005_REGISTER_RW_ACK) { + err("generic read/write, wrong reply code."); + return -EIO; + } + if (ibuf[3] != 0x0d) { + err("generic read/write, wrong length in reply."); + return -EIO; + } + if (ibuf[4] != obuf[4]) { + err("generic read/write, wrong sequence in reply."); + return -EIO; + } + /* + Windows driver doesn't check these fields, in fact sometimes + the register in the reply is different that what has been sent + + if (ibuf[5] != obuf[5] || ibuf[6] != obuf[6]) { + err("generic read/write, wrong register in reply."); + return -EIO; + } + if (ibuf[7] != command) { + err("generic read/write wrong command in reply."); + return -EIO; + } + */ + if (ibuf[16] != 0x01) { + err("generic read/write wrong status code in reply."); + return -EIO; + } + if (readwrite == AF9005_CMD_READ) + for (i = 0; i < len; i++) + values[i] = ibuf[8 + i]; + + return 0; + +} + +int af9005_read_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 * value) +{ + int ret; + deb_reg("read register %x ", reg); + ret = af9005_generic_read_write(d, reg, + AF9005_CMD_READ, AF9005_OFDM_REG, + value, 1); + if (ret) + deb_reg("failed\n"); + else + deb_reg("value %x\n", *value); + return ret; +} + +int af9005_read_ofdm_registers(struct dvb_usb_device *d, u16 reg, + u8 * values, int len) +{ + int ret; + deb_reg("read %d registers %x ", len, reg); + ret = af9005_generic_read_write(d, reg, + AF9005_CMD_READ, AF9005_OFDM_REG, + values, len); + if (ret) + deb_reg("failed\n"); + else + debug_dump(values, len, deb_reg); + return ret; +} + +int af9005_write_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 value) +{ + int ret; + u8 temp = value; + deb_reg("write register %x value %x ", reg, value); + ret = af9005_generic_read_write(d, reg, + AF9005_CMD_WRITE, AF9005_OFDM_REG, + &temp, 1); + if (ret) + deb_reg("failed\n"); + else + deb_reg("ok\n"); + return ret; +} + +int af9005_write_ofdm_registers(struct dvb_usb_device *d, u16 reg, + u8 * values, int len) +{ + int ret; + deb_reg("write %d registers %x values ", len, reg); + debug_dump(values, len, deb_reg); + + ret = af9005_generic_read_write(d, reg, + AF9005_CMD_WRITE, AF9005_OFDM_REG, + values, len); + if (ret) + deb_reg("failed\n"); + else + deb_reg("ok\n"); + return ret; +} + +int af9005_read_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos, + u8 len, u8 * value) +{ + u8 temp; + int ret; + deb_reg("read bits %x %x %x", reg, pos, len); + ret = af9005_read_ofdm_register(d, reg, &temp); + if (ret) { + deb_reg(" failed\n"); + return ret; + } + *value = (temp >> pos) & regmask[len - 1]; + deb_reg(" value %x\n", *value); + return 0; + +} + +int af9005_write_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos, + u8 len, u8 value) +{ + u8 temp, mask; + int ret; + deb_reg("write bits %x %x %x value %x\n", reg, pos, len, value); + if (pos == 0 && len == 8) + return af9005_write_ofdm_register(d, reg, value); + ret = af9005_read_ofdm_register(d, reg, &temp); + if (ret) + return ret; + mask = regmask[len - 1] << pos; + temp = (temp & ~mask) | ((value << pos) & mask); + return af9005_write_ofdm_register(d, reg, temp); + +} + +static int af9005_usb_read_tuner_registers(struct dvb_usb_device *d, + u16 reg, u8 * values, int len) +{ + return af9005_generic_read_write(d, reg, + AF9005_CMD_READ, AF9005_TUNER_REG, + values, len); +} + +static int af9005_usb_write_tuner_registers(struct dvb_usb_device *d, + u16 reg, u8 * values, int len) +{ + return af9005_generic_read_write(d, reg, + AF9005_CMD_WRITE, + AF9005_TUNER_REG, values, len); +} + +int af9005_write_tuner_registers(struct dvb_usb_device *d, u16 reg, + u8 * values, int len) +{ + /* don't let the name of this function mislead you: it's just used + as an interface from the firmware to the i2c bus. The actual + i2c addresses are contained in the data */ + int ret, i, done = 0, fail = 0; + u8 temp; + ret = af9005_usb_write_tuner_registers(d, reg, values, len); + if (ret) + return ret; + if (reg != 0xffff) { + /* check if write done (0xa40d bit 1) or fail (0xa40d bit 2) */ + for (i = 0; i < 200; i++) { + ret = + af9005_read_ofdm_register(d, + xd_I2C_i2c_m_status_wdat_done, + &temp); + if (ret) + return ret; + done = temp & (regmask[i2c_m_status_wdat_done_len - 1] + << i2c_m_status_wdat_done_pos); + if (done) + break; + fail = temp & (regmask[i2c_m_status_wdat_fail_len - 1] + << i2c_m_status_wdat_fail_pos); + if (fail) + break; + msleep(50); + } + if (i == 200) + return -ETIMEDOUT; + if (fail) { + /* clear write fail bit */ + af9005_write_register_bits(d, + xd_I2C_i2c_m_status_wdat_fail, + i2c_m_status_wdat_fail_pos, + i2c_m_status_wdat_fail_len, + 1); + return -EIO; + } + /* clear write done bit */ + ret = + af9005_write_register_bits(d, + xd_I2C_i2c_m_status_wdat_fail, + i2c_m_status_wdat_done_pos, + i2c_m_status_wdat_done_len, 1); + if (ret) + return ret; + } + return 0; +} + +int af9005_read_tuner_registers(struct dvb_usb_device *d, u16 reg, u8 addr, + u8 * values, int len) +{ + /* don't let the name of this function mislead you: it's just used + as an interface from the firmware to the i2c bus. The actual + i2c addresses are contained in the data */ + int ret, i; + u8 temp, buf[2]; + + buf[0] = addr; /* tuner i2c address */ + buf[1] = values[0]; /* tuner register */ + + values[0] = addr + 0x01; /* i2c read address */ + + if (reg == APO_REG_I2C_RW_SILICON_TUNER) { + /* write tuner i2c address to tuner, 0c00c0 undocumented, found by sniffing */ + ret = af9005_write_tuner_registers(d, 0x00c0, buf, 2); + if (ret) + return ret; + } + + /* send read command to ofsm */ + ret = af9005_usb_read_tuner_registers(d, reg, values, 1); + if (ret) + return ret; + + /* check if read done */ + for (i = 0; i < 200; i++) { + ret = af9005_read_ofdm_register(d, 0xa408, &temp); + if (ret) + return ret; + if (temp & 0x01) + break; + msleep(50); + } + if (i == 200) + return -ETIMEDOUT; + + /* clear read done bit (by writing 1) */ + ret = af9005_write_ofdm_register(d, xd_I2C_i2c_m_data8, 1); + if (ret) + return ret; + + /* get read data (available from 0xa400) */ + for (i = 0; i < len; i++) { + ret = af9005_read_ofdm_register(d, 0xa400 + i, &temp); + if (ret) + return ret; + values[i] = temp; + } + return 0; +} + +static int af9005_i2c_write(struct dvb_usb_device *d, u8 i2caddr, u8 reg, + u8 * data, int len) +{ + int ret, i; + u8 buf[3]; + deb_i2c("i2c_write i2caddr %x, reg %x, len %d data ", i2caddr, + reg, len); + debug_dump(data, len, deb_i2c); + + for (i = 0; i < len; i++) { + buf[0] = i2caddr; + buf[1] = reg + (u8) i; + buf[2] = data[i]; + ret = + af9005_write_tuner_registers(d, + APO_REG_I2C_RW_SILICON_TUNER, + buf, 3); + if (ret) { + deb_i2c("i2c_write failed\n"); + return ret; + } + } + deb_i2c("i2c_write ok\n"); + return 0; +} + +static int af9005_i2c_read(struct dvb_usb_device *d, u8 i2caddr, u8 reg, + u8 * data, int len) +{ + int ret, i; + u8 temp; + deb_i2c("i2c_read i2caddr %x, reg %x, len %d\n ", i2caddr, reg, len); + for (i = 0; i < len; i++) { + temp = reg + i; + ret = + af9005_read_tuner_registers(d, + APO_REG_I2C_RW_SILICON_TUNER, + i2caddr, &temp, 1); + if (ret) { + deb_i2c("i2c_read failed\n"); + return ret; + } + data[i] = temp; + } + deb_i2c("i2c data read: "); + debug_dump(data, len, deb_i2c); + return 0; +} + +static int af9005_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], + int num) +{ + /* only implements what the mt2060 module does, don't know how + to make it really generic */ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + int ret; + u8 reg, addr; + u8 *value; + + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + if (num > 2) + warn("more than 2 i2c messages at a time is not handled yet. TODO."); + + if (num == 2) { + /* reads a single register */ + reg = *msg[0].buf; + addr = msg[0].addr; + value = msg[1].buf; + ret = af9005_i2c_read(d, addr, reg, value, 1); + if (ret == 0) + ret = 2; + } else { + /* write one or more registers */ + reg = msg[0].buf[0]; + addr = msg[0].addr; + value = &msg[0].buf[1]; + ret = af9005_i2c_write(d, addr, reg, value, msg[0].len - 1); + if (ret == 0) + ret = 1; + } + + mutex_unlock(&d->i2c_mutex); + return ret; +} + +static u32 af9005_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm af9005_i2c_algo = { + .master_xfer = af9005_i2c_xfer, + .functionality = af9005_i2c_func, +}; + +int af9005_send_command(struct dvb_usb_device *d, u8 command, u8 * wbuf, + int wlen, u8 * rbuf, int rlen) +{ + struct af9005_device_state *st = d->priv; + + int ret, i, packet_len; + u8 buf[64]; + u8 ibuf[64]; + + if (wlen < 0) { + err("send command, wlen less than 0 bytes. Makes no sense."); + return -EINVAL; + } + if (wlen > 54) { + err("send command, wlen more than 54 bytes. Not supported."); + return -EINVAL; + } + if (rlen > 54) { + err("send command, rlen more than 54 bytes. Not supported."); + return -EINVAL; + } + packet_len = wlen + 5; + buf[0] = (u8) (packet_len & 0xff); + buf[1] = (u8) ((packet_len & 0xff00) >> 8); + + buf[2] = 0x26; /* packet type */ + buf[3] = wlen + 3; + buf[4] = st->sequence++; + buf[5] = command; + buf[6] = wlen; + for (i = 0; i < wlen; i++) + buf[7 + i] = wbuf[i]; + ret = af9005_usb_generic_rw(d, buf, wlen + 7, ibuf, rlen + 7, 0); + if (ret) + return ret; + if (ibuf[2] != 0x27) { + err("send command, wrong reply code."); + return -EIO; + } + if (ibuf[4] != buf[4]) { + err("send command, wrong sequence in reply."); + return -EIO; + } + if (ibuf[5] != 0x01) { + err("send command, wrong status code in reply."); + return -EIO; + } + if (ibuf[6] != rlen) { + err("send command, invalid data length in reply."); + return -EIO; + } + for (i = 0; i < rlen; i++) + rbuf[i] = ibuf[i + 7]; + return 0; +} + +int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, u8 * values, + int len) +{ + struct af9005_device_state *st = d->priv; + u8 obuf[16], ibuf[14]; + int ret, i; + + memset(obuf, 0, sizeof(obuf)); + memset(ibuf, 0, sizeof(ibuf)); + + obuf[0] = 14; /* length of rest of packet low */ + obuf[1] = 0; /* length of rest of packer high */ + + obuf[2] = 0x2a; /* read/write eeprom */ + + obuf[3] = 12; /* size */ + + obuf[4] = st->sequence++; + + obuf[5] = 0; /* read */ + + obuf[6] = len; + obuf[7] = address; + ret = af9005_usb_generic_rw(d, obuf, 16, ibuf, 14, 0); + if (ret) + return ret; + if (ibuf[2] != 0x2b) { + err("Read eeprom, invalid reply code"); + return -EIO; + } + if (ibuf[3] != 10) { + err("Read eeprom, invalid reply length"); + return -EIO; + } + if (ibuf[4] != obuf[4]) { + err("Read eeprom, wrong sequence in reply "); + return -EIO; + } + if (ibuf[5] != 1) { + err("Read eeprom, wrong status in reply "); + return -EIO; + } + for (i = 0; i < len; i++) { + values[i] = ibuf[6 + i]; + } + return 0; +} + +static int af9005_boot_packet(struct usb_device *udev, int type, u8 * reply) +{ + u8 buf[FW_BULKOUT_SIZE + 2]; + u16 checksum; + int act_len, i, ret; + memset(buf, 0, sizeof(buf)); + buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff); + buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff); + switch (type) { + case FW_CONFIG: + buf[2] = 0x11; + buf[3] = 0x04; + buf[4] = 0x00; /* sequence number, original driver doesn't increment it here */ + buf[5] = 0x03; + checksum = buf[4] + buf[5]; + buf[6] = (u8) ((checksum >> 8) & 0xff); + buf[7] = (u8) (checksum & 0xff); + break; + case FW_CONFIRM: + buf[2] = 0x11; + buf[3] = 0x04; + buf[4] = 0x00; /* sequence number, original driver doesn't increment it here */ + buf[5] = 0x01; + checksum = buf[4] + buf[5]; + buf[6] = (u8) ((checksum >> 8) & 0xff); + buf[7] = (u8) (checksum & 0xff); + break; + case FW_BOOT: + buf[2] = 0x10; + buf[3] = 0x08; + buf[4] = 0x00; /* sequence number, original driver doesn't increment it here */ + buf[5] = 0x97; + buf[6] = 0xaa; + buf[7] = 0x55; + buf[8] = 0xa5; + buf[9] = 0x5a; + checksum = 0; + for (i = 4; i <= 9; i++) + checksum += buf[i]; + buf[10] = (u8) ((checksum >> 8) & 0xff); + buf[11] = (u8) (checksum & 0xff); + break; + default: + err("boot packet invalid boot packet type"); + return -EINVAL; + } + deb_fw(">>> "); + debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw); + + ret = usb_bulk_msg(udev, + usb_sndbulkpipe(udev, 0x02), + buf, FW_BULKOUT_SIZE + 2, &act_len, 2000); + if (ret) + err("boot packet bulk message failed: %d (%d/%d)", ret, + FW_BULKOUT_SIZE + 2, act_len); + else + ret = act_len != FW_BULKOUT_SIZE + 2 ? -1 : 0; + if (ret) + return ret; + memset(buf, 0, 9); + ret = usb_bulk_msg(udev, + usb_rcvbulkpipe(udev, 0x01), buf, 9, &act_len, 2000); + if (ret) { + err("boot packet recv bulk message failed: %d", ret); + return ret; + } + deb_fw("<<< "); + debug_dump(buf, act_len, deb_fw); + checksum = 0; + switch (type) { + case FW_CONFIG: + if (buf[2] != 0x11) { + err("boot bad config header."); + return -EIO; + } + if (buf[3] != 0x05) { + err("boot bad config size."); + return -EIO; + } + if (buf[4] != 0x00) { + err("boot bad config sequence."); + return -EIO; + } + if (buf[5] != 0x04) { + err("boot bad config subtype."); + return -EIO; + } + for (i = 4; i <= 6; i++) + checksum += buf[i]; + if (buf[7] * 256 + buf[8] != checksum) { + err("boot bad config checksum."); + return -EIO; + } + *reply = buf[6]; + break; + case FW_CONFIRM: + if (buf[2] != 0x11) { + err("boot bad confirm header."); + return -EIO; + } + if (buf[3] != 0x05) { + err("boot bad confirm size."); + return -EIO; + } + if (buf[4] != 0x00) { + err("boot bad confirm sequence."); + return -EIO; + } + if (buf[5] != 0x02) { + err("boot bad confirm subtype."); + return -EIO; + } + for (i = 4; i <= 6; i++) + checksum += buf[i]; + if (buf[7] * 256 + buf[8] != checksum) { + err("boot bad confirm checksum."); + return -EIO; + } + *reply = buf[6]; + break; + case FW_BOOT: + if (buf[2] != 0x10) { + err("boot bad boot header."); + return -EIO; + } + if (buf[3] != 0x05) { + err("boot bad boot size."); + return -EIO; + } + if (buf[4] != 0x00) { + err("boot bad boot sequence."); + return -EIO; + } + if (buf[5] != 0x01) { + err("boot bad boot pattern 01."); + return -EIO; + } + if (buf[6] != 0x10) { + err("boot bad boot pattern 10."); + return -EIO; + } + for (i = 4; i <= 6; i++) + checksum += buf[i]; + if (buf[7] * 256 + buf[8] != checksum) { + err("boot bad boot checksum."); + return -EIO; + } + break; + + } + + return 0; +} + +int af9005_download_firmware(struct usb_device *udev, const struct firmware *fw) +{ + int i, packets, ret, act_len; + + u8 buf[FW_BULKOUT_SIZE + 2]; + u8 reply; + + ret = af9005_boot_packet(udev, FW_CONFIG, &reply); + if (ret) + return ret; + if (reply != 0x01) { + err("before downloading firmware, FW_CONFIG expected 0x01, received 0x%x", reply); + return -EIO; + } + packets = fw->size / FW_BULKOUT_SIZE; + buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff); + buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff); + for (i = 0; i < packets; i++) { + memcpy(&buf[2], fw->data + i * FW_BULKOUT_SIZE, + FW_BULKOUT_SIZE); + deb_fw(">>> "); + debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw); + ret = usb_bulk_msg(udev, + usb_sndbulkpipe(udev, 0x02), + buf, FW_BULKOUT_SIZE + 2, &act_len, 1000); + if (ret) { + err("firmware download failed at packet %d with code %d", i, ret); + return ret; + } + } + ret = af9005_boot_packet(udev, FW_CONFIRM, &reply); + if (ret) + return ret; + if (reply != (u8) (packets & 0xff)) { + err("after downloading firmware, FW_CONFIRM expected 0x%x, received 0x%x", packets & 0xff, reply); + return -EIO; + } + ret = af9005_boot_packet(udev, FW_BOOT, &reply); + if (ret) + return ret; + ret = af9005_boot_packet(udev, FW_CONFIG, &reply); + if (ret) + return ret; + if (reply != 0x02) { + err("after downloading firmware, FW_CONFIG expected 0x02, received 0x%x", reply); + return -EIO; + } + + return 0; + +} + +int af9005_led_control(struct dvb_usb_device *d, int onoff) +{ + struct af9005_device_state *st = d->priv; + int temp, ret; + + if (onoff && dvb_usb_af9005_led) + temp = 1; + else + temp = 0; + if (st->led_state != temp) { + ret = + af9005_write_register_bits(d, xd_p_reg_top_locken1, + reg_top_locken1_pos, + reg_top_locken1_len, temp); + if (ret) + return ret; + ret = + af9005_write_register_bits(d, xd_p_reg_top_lock1, + reg_top_lock1_pos, + reg_top_lock1_len, temp); + if (ret) + return ret; + st->led_state = temp; + } + return 0; +} + +static int af9005_frontend_attach(struct dvb_usb_adapter *adap) +{ + u8 buf[8]; + int i; + + /* without these calls the first commands after downloading + the firmware fail. I put these calls here to simulate + what it is done in dvb-usb-init.c. + */ + struct usb_device *udev = adap->dev->udev; + usb_clear_halt(udev, usb_sndbulkpipe(udev, 2)); + usb_clear_halt(udev, usb_rcvbulkpipe(udev, 1)); + if (dvb_usb_af9005_dump_eeprom) { + printk("EEPROM DUMP\n"); + for (i = 0; i < 255; i += 8) { + af9005_read_eeprom(adap->dev, i, buf, 8); + printk("ADDR %x ", i); + debug_dump(buf, 8, printk); + } + } + adap->fe = af9005_fe_attach(adap->dev); + return 0; +} + +static int af9005_rc_query(struct dvb_usb_device *d, u32 * event, int *state) +{ + struct af9005_device_state *st = d->priv; + int ret, len; + + u8 obuf[5]; + u8 ibuf[256]; + + *state = REMOTE_NO_KEY_PRESSED; + if (rc_decode == NULL) { + /* it shouldn't never come here */ + return 0; + } + /* deb_info("rc_query\n"); */ + obuf[0] = 3; /* rest of packet length low */ + obuf[1] = 0; /* rest of packet lentgh high */ + obuf[2] = 0x40; /* read remote */ + obuf[3] = 1; /* rest of packet length */ + obuf[4] = st->sequence++; /* sequence number */ + ret = af9005_usb_generic_rw(d, obuf, 5, ibuf, 256, 0); + if (ret) { + err("rc query failed"); + return ret; + } + if (ibuf[2] != 0x41) { + err("rc query bad header."); + return -EIO; + } + if (ibuf[4] != obuf[4]) { + err("rc query bad sequence."); + return -EIO; + } + len = ibuf[5]; + if (len > 246) { + err("rc query invalid length"); + return -EIO; + } + if (len > 0) { + deb_rc("rc data (%d) ", len); + debug_dump((ibuf + 6), len, deb_rc); + ret = rc_decode(d, &ibuf[6], len, event, state); + if (ret) { + err("rc_decode failed"); + return ret; + } else { + deb_rc("rc_decode state %x event %x\n", *state, *event); + if (*state == REMOTE_KEY_REPEAT) + *event = d->last_event; + } + } + return 0; +} + +static int af9005_power_ctrl(struct dvb_usb_device *d, int onoff) +{ + + return 0; +} + +static int af9005_pid_filter_control(struct dvb_usb_adapter *adap, int onoff) +{ + int ret; + deb_info("pid filter control onoff %d\n", onoff); + if (onoff) { + ret = + af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1); + if (ret) + return ret; + ret = + af9005_write_register_bits(adap->dev, + XD_MP2IF_DMX_CTRL, 1, 1, 1); + if (ret) + return ret; + ret = + af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1); + } else + ret = + af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 0); + if (ret) + return ret; + deb_info("pid filter control ok\n"); + return 0; +} + +static int af9005_pid_filter(struct dvb_usb_adapter *adap, int index, + u16 pid, int onoff) +{ + u8 cmd = index & 0x1f; + int ret; + deb_info("set pid filter, index %d, pid %x, onoff %d\n", index, + pid, onoff); + if (onoff) { + /* cannot use it as pid_filter_ctrl since it has to be done + before setting the first pid */ + if (adap->feedcount == 1) { + deb_info("first pid set, enable pid table\n"); + ret = af9005_pid_filter_control(adap, onoff); + if (ret) + return ret; + } + ret = + af9005_write_ofdm_register(adap->dev, + XD_MP2IF_PID_DATA_L, + (u8) (pid & 0xff)); + if (ret) + return ret; + ret = + af9005_write_ofdm_register(adap->dev, + XD_MP2IF_PID_DATA_H, + (u8) (pid >> 8)); + if (ret) + return ret; + cmd |= 0x20 | 0x40; + } else { + if (adap->feedcount == 0) { + deb_info("last pid unset, disable pid table\n"); + ret = af9005_pid_filter_control(adap, onoff); + if (ret) + return ret; + } + } + ret = af9005_write_ofdm_register(adap->dev, XD_MP2IF_PID_IDX, cmd); + if (ret) + return ret; + deb_info("set pid ok\n"); + return 0; +} + +static int af9005_identify_state(struct usb_device *udev, + struct dvb_usb_device_properties *props, + struct dvb_usb_device_description **desc, + int *cold) +{ + int ret; + u8 reply; + ret = af9005_boot_packet(udev, FW_CONFIG, &reply); + if (ret) + return ret; + deb_info("result of FW_CONFIG in identify state %d\n", reply); + if (reply == 0x01) + *cold = 1; + else if (reply == 0x02) + *cold = 0; + else + return -EIO; + deb_info("Identify state cold = %d\n", *cold); + return 0; +} + +static struct dvb_usb_device_properties af9005_properties; + +static int af9005_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + return dvb_usb_device_init(intf, &af9005_properties, THIS_MODULE, NULL); +} + +static struct usb_device_id af9005_usb_table[] = { + {USB_DEVICE(USB_VID_AFATECH, USB_PID_AFATECH_AF9005)}, + {USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_USB_XE)}, + {0}, +}; + +MODULE_DEVICE_TABLE(usb, af9005_usb_table); + +static struct dvb_usb_device_properties af9005_properties = { + .caps = DVB_USB_IS_AN_I2C_ADAPTER, + + .usb_ctrl = DEVICE_SPECIFIC, + .firmware = "af9005.fw", + .download_firmware = af9005_download_firmware, + .no_reconnect = 1, + + .size_of_priv = sizeof(struct af9005_device_state), + + .num_adapters = 1, + .adapter = { + { + .caps = + DVB_USB_ADAP_HAS_PID_FILTER | + DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF, + .pid_filter_count = 32, + .pid_filter = af9005_pid_filter, + /* .pid_filter_ctrl = af9005_pid_filter_control, */ + .frontend_attach = af9005_frontend_attach, + /* .tuner_attach = af9005_tuner_attach, */ + /* parameter for the MPEG2-data transfer */ + .stream = { + .type = USB_BULK, + .count = 10, + .endpoint = 0x04, + .u = { + .bulk = { + .buffersize = 4096, /* actual size seen is 3948 */ + } + } + }, + } + }, + .power_ctrl = af9005_power_ctrl, + .identify_state = af9005_identify_state, + + .i2c_algo = &af9005_i2c_algo, + + .rc_interval = 200, + .rc_key_map = NULL, + .rc_key_map_size = 0, + .rc_query = af9005_rc_query, + + .num_device_descs = 2, + .devices = { + {.name = "Afatech DVB-T USB1.1 stick", + .cold_ids = {&af9005_usb_table[0], NULL}, + .warm_ids = {NULL}, + }, + {.name = "TerraTec Cinergy T USB XE", + .cold_ids = {&af9005_usb_table[1], NULL}, + .warm_ids = {NULL}, + }, + {NULL}, + } +}; + +/* usb specific object needed to register this driver with the usb subsystem */ +static struct usb_driver af9005_usb_driver = { + .name = "dvb_usb_af9005", + .probe = af9005_usb_probe, + .disconnect = dvb_usb_device_exit, + .id_table = af9005_usb_table, +}; + +/* module stuff */ +static int __init af9005_usb_module_init(void) +{ + int result; + if ((result = usb_register(&af9005_usb_driver))) { + err("usb_register failed. (%d)", result); + return result; + } + rc_decode = symbol_request(af9005_rc_decode); + rc_keys = symbol_request(af9005_rc_keys); + rc_keys_size = symbol_request(af9005_rc_keys_size); + if (rc_decode == NULL || rc_keys == NULL || rc_keys_size == NULL) { + err("af9005_rc_decode function not found, disabling remote"); + af9005_properties.rc_query = NULL; + } else { + af9005_properties.rc_key_map = rc_keys; + af9005_properties.rc_key_map_size = *rc_keys_size; + } + + return 0; +} + +static void __exit af9005_usb_module_exit(void) +{ + /* release rc decode symbols */ + if (rc_decode != NULL) + symbol_put(af9005_rc_decode); + if (rc_keys != NULL) + symbol_put(af9005_rc_keys); + if (rc_keys_size != NULL) + symbol_put(af9005_rc_keys_size); + /* deregister this driver from the USB subsystem */ + usb_deregister(&af9005_usb_driver); +} + +module_init(af9005_usb_module_init); +module_exit(af9005_usb_module_exit); + +MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>"); +MODULE_DESCRIPTION("Driver for Afatech 9005 DVB-T USB1.1 stick"); +MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/dvb-usb/af9005.h b/drivers/media/dvb/dvb-usb/af9005.h new file mode 100644 index 000000000000..0bc48a012187 --- /dev/null +++ b/drivers/media/dvb/dvb-usb/af9005.h @@ -0,0 +1,3496 @@ +/* Common header-file of the Linux driver for the Afatech 9005 + * USB1.1 DVB-T receiver. + * + * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org) + * + * Thanks to Afatech who kindly provided information. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * see Documentation/dvb/README.dvb-usb for more information + */ +#ifndef _DVB_USB_AF9005_H_ +#define _DVB_USB_AF9005_H_ + +#define DVB_USB_LOG_PREFIX "af9005" +#include "dvb-usb.h" + +extern int dvb_usb_af9005_debug; +#define deb_info(args...) dprintk(dvb_usb_af9005_debug,0x01,args) +#define deb_xfer(args...) dprintk(dvb_usb_af9005_debug,0x02,args) +#define deb_rc(args...) dprintk(dvb_usb_af9005_debug,0x04,args) +#define deb_reg(args...) dprintk(dvb_usb_af9005_debug,0x08,args) +#define deb_i2c(args...) dprintk(dvb_usb_af9005_debug,0x10,args) +#define deb_fw(args...) dprintk(dvb_usb_af9005_debug,0x20,args) + +extern int dvb_usb_af9005_led; + +/* firmware */ +#define FW_BULKOUT_SIZE 250 +enum { + FW_CONFIG, + FW_CONFIRM, + FW_BOOT +}; + +/* af9005 commands */ +#define AF9005_OFDM_REG 0 +#define AF9005_TUNER_REG 1 + +#define AF9005_REGISTER_RW 0x20 +#define AF9005_REGISTER_RW_ACK 0x21 + +#define AF9005_CMD_OFDM_REG 0x00 +#define AF9005_CMD_TUNER 0x80 +#define AF9005_CMD_BURST 0x02 +#define AF9005_CMD_AUTOINC 0x04 +#define AF9005_CMD_READ 0x00 +#define AF9005_CMD_WRITE 0x01 + +/* af9005 registers */ +#define APO_REG_RESET 0xAEFF + +#define APO_REG_I2C_RW_CAN_TUNER 0xF000 +#define APO_REG_I2C_RW_SILICON_TUNER 0xF001 +#define APO_REG_GPIO_RW_SILICON_TUNER 0xFFFE /* also for OFSM */ +#define APO_REG_TRIGGER_OFSM 0xFFFF /* also for OFSM */ + +/*********************************************************************** + * Apollo Registers from VLSI * + ***********************************************************************/ +#define xd_p_reg_aagc_inverted_agc 0xA000 +#define reg_aagc_inverted_agc_pos 0 +#define reg_aagc_inverted_agc_len 1 +#define reg_aagc_inverted_agc_lsb 0 +#define xd_p_reg_aagc_sign_only 0xA000 +#define reg_aagc_sign_only_pos 1 +#define reg_aagc_sign_only_len 1 +#define reg_aagc_sign_only_lsb 0 +#define xd_p_reg_aagc_slow_adc_en 0xA000 +#define reg_aagc_slow_adc_en_pos 2 +#define reg_aagc_slow_adc_en_len 1 +#define reg_aagc_slow_adc_en_lsb 0 +#define xd_p_reg_aagc_slow_adc_scale 0xA000 +#define reg_aagc_slow_adc_scale_pos 3 +#define reg_aagc_slow_adc_scale_len 5 +#define reg_aagc_slow_adc_scale_lsb 0 +#define xd_p_reg_aagc_check_slow_adc_lock 0xA001 +#define reg_aagc_check_slow_adc_lock_pos 0 +#define reg_aagc_check_slow_adc_lock_len 1 +#define reg_aagc_check_slow_adc_lock_lsb 0 +#define xd_p_reg_aagc_init_control 0xA001 +#define reg_aagc_init_control_pos 1 +#define reg_aagc_init_control_len 1 +#define reg_aagc_init_control_lsb 0 +#define xd_p_reg_aagc_total_gain_sel 0xA001 +#define reg_aagc_total_gain_sel_pos 2 +#define reg_aagc_total_gain_sel_len 2 +#define reg_aagc_total_gain_sel_lsb 0 +#define xd_p_reg_aagc_out_inv 0xA001 +#define reg_aagc_out_inv_pos 5 +#define reg_aagc_out_inv_len 1 +#define reg_aagc_out_inv_lsb 0 +#define xd_p_reg_aagc_int_en 0xA001 +#define reg_aagc_int_en_pos 6 +#define reg_aagc_int_en_len 1 +#define reg_aagc_int_en_lsb 0 +#define xd_p_reg_aagc_lock_change_flag 0xA001 +#define reg_aagc_lock_change_flag_pos 7 +#define reg_aagc_lock_change_flag_len 1 +#define reg_aagc_lock_change_flag_lsb 0 +#define xd_p_reg_aagc_rf_loop_bw_scale_acquire 0xA002 +#define reg_aagc_rf_loop_bw_scale_acquire_pos 0 +#define reg_aagc_rf_loop_bw_scale_acquire_len 5 +#define reg_aagc_rf_loop_bw_scale_acquire_lsb 0 +#define xd_p_reg_aagc_rf_loop_bw_scale_track 0xA003 +#define reg_aagc_rf_loop_bw_scale_track_pos 0 +#define reg_aagc_rf_loop_bw_scale_track_len 5 +#define reg_aagc_rf_loop_bw_scale_track_lsb 0 +#define xd_p_reg_aagc_if_loop_bw_scale_acquire 0xA004 +#define reg_aagc_if_loop_bw_scale_acquire_pos 0 +#define reg_aagc_if_loop_bw_scale_acquire_len 5 +#define reg_aagc_if_loop_bw_scale_acquire_lsb 0 +#define xd_p_reg_aagc_if_loop_bw_scale_track 0xA005 +#define reg_aagc_if_loop_bw_scale_track_pos 0 +#define reg_aagc_if_loop_bw_scale_track_len 5 +#define reg_aagc_if_loop_bw_scale_track_lsb 0 +#define xd_p_reg_aagc_max_rf_agc_7_0 0xA006 +#define reg_aagc_max_rf_agc_7_0_pos 0 +#define reg_aagc_max_rf_agc_7_0_len 8 +#define reg_aagc_max_rf_agc_7_0_lsb 0 +#define xd_p_reg_aagc_max_rf_agc_9_8 0xA007 +#define reg_aagc_max_rf_agc_9_8_pos 0 +#define reg_aagc_max_rf_agc_9_8_len 2 +#define reg_aagc_max_rf_agc_9_8_lsb 8 +#define xd_p_reg_aagc_min_rf_agc_7_0 0xA008 +#define reg_aagc_min_rf_agc_7_0_pos 0 +#define reg_aagc_min_rf_agc_7_0_len 8 +#define reg_aagc_min_rf_agc_7_0_lsb 0 +#define xd_p_reg_aagc_min_rf_agc_9_8 0xA009 +#define reg_aagc_min_rf_agc_9_8_pos 0 +#define reg_aagc_min_rf_agc_9_8_len 2 +#define reg_aagc_min_rf_agc_9_8_lsb 8 +#define xd_p_reg_aagc_max_if_agc_7_0 0xA00A +#define reg_aagc_max_if_agc_7_0_pos 0 +#define reg_aagc_max_if_agc_7_0_len 8 +#define reg_aagc_max_if_agc_7_0_lsb 0 +#define xd_p_reg_aagc_max_if_agc_9_8 0xA00B +#define reg_aagc_max_if_agc_9_8_pos 0 +#define reg_aagc_max_if_agc_9_8_len 2 +#define reg_aagc_max_if_agc_9_8_lsb 8 +#define xd_p_reg_aagc_min_if_agc_7_0 0xA00C +#define reg_aagc_min_if_agc_7_0_pos 0 +#define reg_aagc_min_if_agc_7_0_len 8 +#define reg_aagc_min_if_agc_7_0_lsb 0 +#define xd_p_reg_aagc_min_if_agc_9_8 0xA00D +#define reg_aagc_min_if_agc_9_8_pos 0 +#define reg_aagc_min_if_agc_9_8_len 2 +#define reg_aagc_min_if_agc_9_8_lsb 8 +#define xd_p_reg_aagc_lock_sample_scale 0xA00E +#define reg_aagc_lock_sample_scale_pos 0 +#define reg_aagc_lock_sample_scale_len 5 +#define reg_aagc_lock_sample_scale_lsb 0 +#define xd_p_reg_aagc_rf_agc_lock_scale_acquire 0xA00F +#define reg_aagc_rf_agc_lock_scale_acquire_pos 0 +#define reg_aagc_rf_agc_lock_scale_acquire_len 3 +#define reg_aagc_rf_agc_lock_scale_acquire_lsb 0 +#define xd_p_reg_aagc_rf_agc_lock_scale_track 0xA00F +#define reg_aagc_rf_agc_lock_scale_track_pos 3 +#define reg_aagc_rf_agc_lock_scale_track_len 3 +#define reg_aagc_rf_agc_lock_scale_track_lsb 0 +#define xd_p_reg_aagc_if_agc_lock_scale_acquire 0xA010 +#define reg_aagc_if_agc_lock_scale_acquire_pos 0 +#define reg_aagc_if_agc_lock_scale_acquire_len 3 +#define reg_aagc_if_agc_lock_scale_acquire_lsb 0 +#define xd_p_reg_aagc_if_agc_lock_scale_track 0xA010 +#define reg_aagc_if_agc_lock_scale_track_pos 3 +#define reg_aagc_if_agc_lock_scale_track_len 3 +#define reg_aagc_if_agc_lock_scale_track_lsb 0 +#define xd_p_reg_aagc_rf_top_numerator_7_0 0xA011 +#define reg_aagc_rf_top_numerator_7_0_pos 0 +#define reg_aagc_rf_top_numerator_7_0_len 8 +#define reg_aagc_rf_top_numerator_7_0_lsb 0 +#define xd_p_reg_aagc_rf_top_numerator_9_8 0xA012 +#define reg_aagc_rf_top_numerator_9_8_pos 0 +#define reg_aagc_rf_top_numerator_9_8_len 2 +#define reg_aagc_rf_top_numerator_9_8_lsb 8 +#define xd_p_reg_aagc_if_top_numerator_7_0 0xA013 +#define reg_aagc_if_top_numerator_7_0_pos 0 +#define reg_aagc_if_top_numerator_7_0_len 8 +#define reg_aagc_if_top_numerator_7_0_lsb 0 +#define xd_p_reg_aagc_if_top_numerator_9_8 0xA014 +#define reg_aagc_if_top_numerator_9_8_pos 0 +#define reg_aagc_if_top_numerator_9_8_len 2 +#define reg_aagc_if_top_numerator_9_8_lsb 8 +#define xd_p_reg_aagc_adc_out_desired_7_0 0xA015 +#define reg_aagc_adc_out_desired_7_0_pos 0 +#define reg_aagc_adc_out_desired_7_0_len 8 +#define reg_aagc_adc_out_desired_7_0_lsb 0 +#define xd_p_reg_aagc_adc_out_desired_8 0xA016 +#define reg_aagc_adc_out_desired_8_pos 0 +#define reg_aagc_adc_out_desired_8_len 1 +#define reg_aagc_adc_out_desired_8_lsb 0 +#define xd_p_reg_aagc_fixed_gain 0xA016 +#define reg_aagc_fixed_gain_pos 3 +#define reg_aagc_fixed_gain_len 1 +#define reg_aagc_fixed_gain_lsb 0 +#define xd_p_reg_aagc_lock_count_th 0xA016 +#define reg_aagc_lock_count_th_pos 4 +#define reg_aagc_lock_count_th_len 4 +#define reg_aagc_lock_count_th_lsb 0 +#define xd_p_reg_aagc_fixed_rf_agc_control_7_0 0xA017 +#define reg_aagc_fixed_rf_agc_control_7_0_pos 0 +#define reg_aagc_fixed_rf_agc_control_7_0_len 8 +#define reg_aagc_fixed_rf_agc_control_7_0_lsb 0 +#define xd_p_reg_aagc_fixed_rf_agc_control_15_8 0xA018 +#define reg_aagc_fixed_rf_agc_control_15_8_pos 0 +#define reg_aagc_fixed_rf_agc_control_15_8_len 8 +#define reg_aagc_fixed_rf_agc_control_15_8_lsb 8 +#define xd_p_reg_aagc_fixed_rf_agc_control_23_16 0xA019 +#define reg_aagc_fixed_rf_agc_control_23_16_pos 0 +#define reg_aagc_fixed_rf_agc_control_23_16_len 8 +#define reg_aagc_fixed_rf_agc_control_23_16_lsb 16 +#define xd_p_reg_aagc_fixed_rf_agc_control_30_24 0xA01A +#define reg_aagc_fixed_rf_agc_control_30_24_pos 0 +#define reg_aagc_fixed_rf_agc_control_30_24_len 7 +#define reg_aagc_fixed_rf_agc_control_30_24_lsb 24 +#define xd_p_reg_aagc_fixed_if_agc_control_7_0 0xA01B +#define reg_aagc_fixed_if_agc_control_7_0_pos 0 +#define reg_aagc_fixed_if_agc_control_7_0_len 8 +#define reg_aagc_fixed_if_agc_control_7_0_lsb 0 +#define xd_p_reg_aagc_fixed_if_agc_control_15_8 0xA01C +#define reg_aagc_fixed_if_agc_control_15_8_pos 0 +#define reg_aagc_fixed_if_agc_control_15_8_len 8 +#define reg_aagc_fixed_if_agc_control_15_8_lsb 8 +#define xd_p_reg_aagc_fixed_if_agc_control_23_16 0xA01D +#define reg_aagc_fixed_if_agc_control_23_16_pos 0 +#define reg_aagc_fixed_if_agc_control_23_16_len 8 +#define reg_aagc_fixed_if_agc_control_23_16_lsb 16 +#define xd_p_reg_aagc_fixed_if_agc_control_30_24 0xA01E +#define reg_aagc_fixed_if_agc_control_30_24_pos 0 +#define reg_aagc_fixed_if_agc_control_30_24_len 7 +#define reg_aagc_fixed_if_agc_control_30_24_lsb 24 +#define xd_p_reg_aagc_rf_agc_unlock_numerator 0xA01F +#define reg_aagc_rf_agc_unlock_numerator_pos 0 +#define reg_aagc_rf_agc_unlock_numerator_len 6 +#define reg_aagc_rf_agc_unlock_numerator_lsb 0 +#define xd_p_reg_aagc_if_agc_unlock_numerator 0xA020 +#define reg_aagc_if_agc_unlock_numerator_pos 0 +#define reg_aagc_if_agc_unlock_numerator_len 6 +#define reg_aagc_if_agc_unlock_numerator_lsb 0 +#define xd_p_reg_unplug_th 0xA021 +#define reg_unplug_th_pos 0 +#define reg_unplug_th_len 8 +#define reg_aagc_rf_x0_lsb 0 +#define xd_p_reg_weak_signal_rfagc_thr 0xA022 +#define reg_weak_signal_rfagc_thr_pos 0 +#define reg_weak_signal_rfagc_thr_len 8 +#define reg_weak_signal_rfagc_thr_lsb 0 +#define xd_p_reg_unplug_rf_gain_th 0xA023 +#define reg_unplug_rf_gain_th_pos 0 +#define reg_unplug_rf_gain_th_len 8 +#define reg_unplug_rf_gain_th_lsb 0 +#define xd_p_reg_unplug_dtop_rf_gain_th 0xA024 +#define reg_unplug_dtop_rf_gain_th_pos 0 +#define reg_unplug_dtop_rf_gain_th_len 8 +#define reg_unplug_dtop_rf_gain_th_lsb 0 +#define xd_p_reg_unplug_dtop_if_gain_th 0xA025 +#define reg_unplug_dtop_if_gain_th_pos 0 +#define reg_unplug_dtop_if_gain_th_len 8 +#define reg_unplug_dtop_if_gain_th_lsb 0 +#define xd_p_reg_top_recover_at_unplug_en 0xA026 +#define reg_top_recover_at_unplug_en_pos 0 +#define reg_top_recover_at_unplug_en_len 1 +#define reg_top_recover_at_unplug_en_lsb 0 +#define xd_p_reg_aagc_rf_x6 0xA027 +#define reg_aagc_rf_x6_pos 0 +#define reg_aagc_rf_x6_len 8 +#define reg_aagc_rf_x6_lsb 0 +#define xd_p_reg_aagc_rf_x7 0xA028 +#define reg_aagc_rf_x7_pos 0 +#define reg_aagc_rf_x7_len 8 +#define reg_aagc_rf_x7_lsb 0 +#define xd_p_reg_aagc_rf_x8 0xA029 +#define reg_aagc_rf_x8_pos 0 +#define reg_aagc_rf_x8_len 8 +#define reg_aagc_rf_x8_lsb 0 +#define xd_p_reg_aagc_rf_x9 0xA02A +#define reg_aagc_rf_x9_pos 0 +#define reg_aagc_rf_x9_len 8 +#define reg_aagc_rf_x9_lsb 0 +#define xd_p_reg_aagc_rf_x10 0xA02B +#define reg_aagc_rf_x10_pos 0 +#define reg_aagc_rf_x10_len 8 +#define reg_aagc_rf_x10_lsb 0 +#define xd_p_reg_aagc_rf_x11 0xA02C +#define reg_aagc_rf_x11_pos 0 +#define reg_aagc_rf_x11_len 8 +#define reg_aagc_rf_x11_lsb 0 +#define xd_p_reg_aagc_rf_x12 0xA02D +#define reg_aagc_rf_x12_pos 0 +#define reg_aagc_rf_x12_len 8 +#define reg_aagc_rf_x12_lsb 0 +#define xd_p_reg_aagc_rf_x13 0xA02E +#define reg_aagc_rf_x13_pos 0 +#define reg_aagc_rf_x13_len 8 +#define reg_aagc_rf_x13_lsb 0 +#define xd_p_reg_aagc_if_x0 0xA02F +#define reg_aagc_if_x0_pos 0 +#define reg_aagc_if_x0_len 8 +#define reg_aagc_if_x0_lsb 0 +#define xd_p_reg_aagc_if_x1 0xA030 +#define reg_aagc_if_x1_pos 0 +#define reg_aagc_if_x1_len 8 +#define reg_aagc_if_x1_lsb 0 +#define xd_p_reg_aagc_if_x2 0xA031 +#define reg_aagc_if_x2_pos 0 +#define reg_aagc_if_x2_len 8 +#define reg_aagc_if_x2_lsb 0 +#define xd_p_reg_aagc_if_x3 0xA032 +#define reg_aagc_if_x3_pos 0 +#define reg_aagc_if_x3_len 8 +#define reg_aagc_if_x3_lsb 0 +#define xd_p_reg_aagc_if_x4 0xA033 +#define reg_aagc_if_x4_pos 0 +#define reg_aagc_if_x4_len 8 +#define reg_aagc_if_x4_lsb 0 +#define xd_p_reg_aagc_if_x5 0xA034 +#define reg_aagc_if_x5_pos 0 +#define reg_aagc_if_x5_len 8 +#define reg_aagc_if_x5_lsb 0 +#define xd_p_reg_aagc_if_x6 0xA035 +#define reg_aagc_if_x6_pos 0 +#define reg_aagc_if_x6_len 8 +#define reg_aagc_if_x6_lsb 0 +#define xd_p_reg_aagc_if_x7 0xA036 +#define reg_aagc_if_x7_pos 0 +#define reg_aagc_if_x7_len 8 +#define reg_aagc_if_x7_lsb 0 +#define xd_p_reg_aagc_if_x8 0xA037 +#define reg_aagc_if_x8_pos 0 +#define reg_aagc_if_x8_len 8 +#define reg_aagc_if_x8_lsb 0 +#define xd_p_reg_aagc_if_x9 0xA038 +#define reg_aagc_if_x9_pos 0 +#define reg_aagc_if_x9_len 8 +#define reg_aagc_if_x9_lsb 0 +#define xd_p_reg_aagc_if_x10 0xA039 +#define reg_aagc_if_x10_pos 0 +#define reg_aagc_if_x10_len 8 +#define reg_aagc_if_x10_lsb 0 +#define xd_p_reg_aagc_if_x11 0xA03A +#define reg_aagc_if_x11_pos 0 +#define reg_aagc_if_x11_len 8 +#define reg_aagc_if_x11_lsb 0 +#define xd_p_reg_aagc_if_x12 0xA03B +#define reg_aagc_if_x12_pos 0 +#define reg_aagc_if_x12_len 8 +#define reg_aagc_if_x12_lsb 0 +#define xd_p_reg_aagc_if_x13 0xA03C +#define reg_aagc_if_x13_pos 0 +#define reg_aagc_if_x13_len 8 +#define reg_aagc_if_x13_lsb 0 +#define xd_p_reg_aagc_min_rf_ctl_8bit_for_dca 0xA03D +#define reg_aagc_min_rf_ctl_8bit_for_dca_pos 0 +#define reg_aagc_min_rf_ctl_8bit_for_dca_len 8 +#define reg_aagc_min_rf_ctl_8bit_for_dca_lsb 0 +#define xd_p_reg_aagc_min_if_ctl_8bit_for_dca 0xA03E +#define reg_aagc_min_if_ctl_8bit_for_dca_pos 0 +#define reg_aagc_min_if_ctl_8bit_for_dca_len 8 +#define reg_aagc_min_if_ctl_8bit_for_dca_lsb 0 +#define xd_r_reg_aagc_total_gain_7_0 0xA070 +#define reg_aagc_total_gain_7_0_pos 0 +#define reg_aagc_total_gain_7_0_len 8 +#define reg_aagc_total_gain_7_0_lsb 0 +#define xd_r_reg_aagc_total_gain_15_8 0xA071 +#define reg_aagc_total_gain_15_8_pos 0 +#define reg_aagc_total_gain_15_8_len 8 +#define reg_aagc_total_gain_15_8_lsb 8 +#define xd_p_reg_aagc_in_sat_cnt_7_0 0xA074 +#define reg_aagc_in_sat_cnt_7_0_pos 0 +#define reg_aagc_in_sat_cnt_7_0_len 8 +#define reg_aagc_in_sat_cnt_7_0_lsb 0 +#define xd_p_reg_aagc_in_sat_cnt_15_8 0xA075 +#define reg_aagc_in_sat_cnt_15_8_pos 0 +#define reg_aagc_in_sat_cnt_15_8_len 8 +#define reg_aagc_in_sat_cnt_15_8_lsb 8 +#define xd_p_reg_aagc_in_sat_cnt_23_16 0xA076 +#define reg_aagc_in_sat_cnt_23_16_pos 0 +#define reg_aagc_in_sat_cnt_23_16_len 8 +#define reg_aagc_in_sat_cnt_23_16_lsb 16 +#define xd_p_reg_aagc_in_sat_cnt_31_24 0xA077 +#define reg_aagc_in_sat_cnt_31_24_pos 0 +#define reg_aagc_in_sat_cnt_31_24_len 8 +#define reg_aagc_in_sat_cnt_31_24_lsb 24 +#define xd_r_reg_aagc_digital_rf_volt_7_0 0xA078 +#define reg_aagc_digital_rf_volt_7_0_pos 0 +#define reg_aagc_digital_rf_volt_7_0_len 8 +#define reg_aagc_digital_rf_volt_7_0_lsb 0 +#define xd_r_reg_aagc_digital_rf_volt_9_8 0xA079 +#define reg_aagc_digital_rf_volt_9_8_pos 0 +#define reg_aagc_digital_rf_volt_9_8_len 2 +#define reg_aagc_digital_rf_volt_9_8_lsb 8 +#define xd_r_reg_aagc_digital_if_volt_7_0 0xA07A +#define reg_aagc_digital_if_volt_7_0_pos 0 +#define reg_aagc_digital_if_volt_7_0_len 8 +#define reg_aagc_digital_if_volt_7_0_lsb 0 +#define xd_r_reg_aagc_digital_if_volt_9_8 0xA07B +#define reg_aagc_digital_if_volt_9_8_pos 0 +#define reg_aagc_digital_if_volt_9_8_len 2 +#define reg_aagc_digital_if_volt_9_8_lsb 8 +#define xd_r_reg_aagc_rf_gain 0xA07C +#define reg_aagc_rf_gain_pos 0 +#define reg_aagc_rf_gain_len 8 +#define reg_aagc_rf_gain_lsb 0 +#define xd_r_reg_aagc_if_gain 0xA07D +#define reg_aagc_if_gain_pos 0 +#define reg_aagc_if_gain_len 8 +#define reg_aagc_if_gain_lsb 0 +#define xd_p_tinr_imp_indicator 0xA080 +#define tinr_imp_indicator_pos 0 +#define tinr_imp_indicator_len 2 +#define tinr_imp_indicator_lsb 0 +#define xd_p_reg_tinr_fifo_size 0xA080 +#define reg_tinr_fifo_size_pos 2 +#define reg_tinr_fifo_size_len 5 +#define reg_tinr_fifo_size_lsb 0 +#define xd_p_reg_tinr_saturation_cnt_th 0xA081 +#define reg_tinr_saturation_cnt_th_pos 0 +#define reg_tinr_saturation_cnt_th_len 4 +#define reg_tinr_saturation_cnt_th_lsb 0 +#define xd_p_reg_tinr_saturation_th_3_0 0xA081 +#define reg_tinr_saturation_th_3_0_pos 4 +#define reg_tinr_saturation_th_3_0_len 4 +#define reg_tinr_saturation_th_3_0_lsb 0 +#define xd_p_reg_tinr_saturation_th_8_4 0xA082 +#define reg_tinr_saturation_th_8_4_pos 0 +#define reg_tinr_saturation_th_8_4_len 5 +#define reg_tinr_saturation_th_8_4_lsb 4 +#define xd_p_reg_tinr_imp_duration_th_2k_7_0 0xA083 +#define reg_tinr_imp_duration_th_2k_7_0_pos 0 +#define reg_tinr_imp_duration_th_2k_7_0_len 8 +#define reg_tinr_imp_duration_th_2k_7_0_lsb 0 +#define xd_p_reg_tinr_imp_duration_th_2k_8 0xA084 +#define reg_tinr_imp_duration_th_2k_8_pos 0 +#define reg_tinr_imp_duration_th_2k_8_len 1 +#define reg_tinr_imp_duration_th_2k_8_lsb 0 +#define xd_p_reg_tinr_imp_duration_th_8k_7_0 0xA085 +#define reg_tinr_imp_duration_th_8k_7_0_pos 0 +#define reg_tinr_imp_duration_th_8k_7_0_len 8 +#define reg_tinr_imp_duration_th_8k_7_0_lsb 0 +#define xd_p_reg_tinr_imp_duration_th_8k_10_8 0xA086 +#define reg_tinr_imp_duration_th_8k_10_8_pos 0 +#define reg_tinr_imp_duration_th_8k_10_8_len 3 +#define reg_tinr_imp_duration_th_8k_10_8_lsb 8 +#define xd_p_reg_tinr_freq_ratio_6m_7_0 0xA087 +#define reg_tinr_freq_ratio_6m_7_0_pos 0 +#define reg_tinr_freq_ratio_6m_7_0_len 8 +#define reg_tinr_freq_ratio_6m_7_0_lsb 0 +#define xd_p_reg_tinr_freq_ratio_6m_12_8 0xA088 +#define reg_tinr_freq_ratio_6m_12_8_pos 0 +#define reg_tinr_freq_ratio_6m_12_8_len 5 +#define reg_tinr_freq_ratio_6m_12_8_lsb 8 +#define xd_p_reg_tinr_freq_ratio_7m_7_0 0xA089 +#define reg_tinr_freq_ratio_7m_7_0_pos 0 +#define reg_tinr_freq_ratio_7m_7_0_len 8 +#define reg_tinr_freq_ratio_7m_7_0_lsb 0 +#define xd_p_reg_tinr_freq_ratio_7m_12_8 0xA08A +#define reg_tinr_freq_ratio_7m_12_8_pos 0 +#define reg_tinr_freq_ratio_7m_12_8_len 5 +#define reg_tinr_freq_ratio_7m_12_8_lsb 8 +#define xd_p_reg_tinr_freq_ratio_8m_7_0 0xA08B +#define reg_tinr_freq_ratio_8m_7_0_pos 0 +#define reg_tinr_freq_ratio_8m_7_0_len 8 +#define reg_tinr_freq_ratio_8m_7_0_lsb 0 +#define xd_p_reg_tinr_freq_ratio_8m_12_8 0xA08C +#define reg_tinr_freq_ratio_8m_12_8_pos 0 +#define reg_tinr_freq_ratio_8m_12_8_len 5 +#define reg_tinr_freq_ratio_8m_12_8_lsb 8 +#define xd_p_reg_tinr_imp_duration_th_low_2k 0xA08D +#define reg_tinr_imp_duration_th_low_2k_pos 0 +#define reg_tinr_imp_duration_th_low_2k_len 8 +#define reg_tinr_imp_duration_th_low_2k_lsb 0 +#define xd_p_reg_tinr_imp_duration_th_low_8k 0xA08E +#define reg_tinr_imp_duration_th_low_8k_pos 0 +#define reg_tinr_imp_duration_th_low_8k_len 8 +#define reg_tinr_imp_duration_th_low_8k_lsb 0 +#define xd_r_reg_tinr_counter_7_0 0xA090 +#define reg_tinr_counter_7_0_pos 0 +#define reg_tinr_counter_7_0_len 8 +#define reg_tinr_counter_7_0_lsb 0 +#define xd_r_reg_tinr_counter_15_8 0xA091 +#define reg_tinr_counter_15_8_pos 0 +#define reg_tinr_counter_15_8_len 8 +#define reg_tinr_counter_15_8_lsb 8 +#define xd_p_reg_tinr_adative_tinr_en 0xA093 +#define reg_tinr_adative_tinr_en_pos 0 +#define reg_tinr_adative_tinr_en_len 1 +#define reg_tinr_adative_tinr_en_lsb 0 +#define xd_p_reg_tinr_peak_fifo_size 0xA093 +#define reg_tinr_peak_fifo_size_pos 1 +#define reg_tinr_peak_fifo_size_len 5 +#define reg_tinr_peak_fifo_size_lsb 0 +#define xd_p_reg_tinr_counter_rst 0xA093 +#define reg_tinr_counter_rst_pos 6 +#define reg_tinr_counter_rst_len 1 +#define reg_tinr_counter_rst_lsb 0 +#define xd_p_reg_tinr_search_period_7_0 0xA094 +#define reg_tinr_search_period_7_0_pos 0 +#define reg_tinr_search_period_7_0_len 8 +#define reg_tinr_search_period_7_0_lsb 0 +#define xd_p_reg_tinr_search_period_15_8 0xA095 +#define reg_tinr_search_period_15_8_pos 0 +#define reg_tinr_search_period_15_8_len 8 +#define reg_tinr_search_period_15_8_lsb 8 +#define xd_p_reg_ccifs_fcw_7_0 0xA0A0 +#define reg_ccifs_fcw_7_0_pos 0 +#define reg_ccifs_fcw_7_0_len 8 +#define reg_ccifs_fcw_7_0_lsb 0 +#define xd_p_reg_ccifs_fcw_12_8 0xA0A1 +#define reg_ccifs_fcw_12_8_pos 0 +#define reg_ccifs_fcw_12_8_len 5 +#define reg_ccifs_fcw_12_8_lsb 8 +#define xd_p_reg_ccifs_spec_inv 0xA0A1 +#define reg_ccifs_spec_inv_pos 5 +#define reg_ccifs_spec_inv_len 1 +#define reg_ccifs_spec_inv_lsb 0 +#define xd_p_reg_gp_trigger 0xA0A2 +#define reg_gp_trigger_pos 0 +#define reg_gp_trigger_len 1 +#define reg_gp_trigger_lsb 0 +#define xd_p_reg_trigger_sel 0xA0A2 +#define reg_trigger_sel_pos 1 +#define reg_trigger_sel_len 2 +#define reg_trigger_sel_lsb 0 +#define xd_p_reg_debug_ofdm 0xA0A2 +#define reg_debug_ofdm_pos 3 +#define reg_debug_ofdm_len 2 +#define reg_debug_ofdm_lsb 0 +#define xd_p_reg_trigger_module_sel 0xA0A3 +#define reg_trigger_module_sel_pos 0 +#define reg_trigger_module_sel_len 6 +#define reg_trigger_module_sel_lsb 0 +#define xd_p_reg_trigger_set_sel 0xA0A4 +#define reg_trigger_set_sel_pos 0 +#define reg_trigger_set_sel_len 6 +#define reg_trigger_set_sel_lsb 0 +#define xd_p_reg_fw_int_mask_n 0xA0A4 +#define reg_fw_int_mask_n_pos 6 +#define reg_fw_int_mask_n_len 1 +#define reg_fw_int_mask_n_lsb 0 +#define xd_p_reg_debug_group 0xA0A5 +#define reg_debug_group_pos 0 +#define reg_debug_group_len 4 +#define reg_debug_group_lsb 0 +#define xd_p_reg_odbg_clk_sel 0xA0A5 +#define reg_odbg_clk_sel_pos 4 +#define reg_odbg_clk_sel_len 2 +#define reg_odbg_clk_sel_lsb 0 +#define xd_p_reg_ccif_sc 0xA0C0 +#define reg_ccif_sc_pos 0 +#define reg_ccif_sc_len 4 +#define reg_ccif_sc_lsb 0 +#define xd_r_reg_ccif_saturate 0xA0C1 +#define reg_ccif_saturate_pos 0 +#define reg_ccif_saturate_len 2 +#define reg_ccif_saturate_lsb 0 +#define xd_r_reg_antif_saturate 0xA0C1 +#define reg_antif_saturate_pos 2 +#define reg_antif_saturate_len 4 +#define reg_antif_saturate_lsb 0 +#define xd_r_reg_acif_saturate 0xA0C2 +#define reg_acif_saturate_pos 0 +#define reg_acif_saturate_len 8 +#define reg_acif_saturate_lsb 0 +#define xd_p_reg_tmr_timer0_threshold_7_0 0xA0C8 +#define reg_tmr_timer0_threshold_7_0_pos 0 +#define reg_tmr_timer0_threshold_7_0_len 8 +#define reg_tmr_timer0_threshold_7_0_lsb 0 +#define xd_p_reg_tmr_timer0_threshold_15_8 0xA0C9 +#define reg_tmr_timer0_threshold_15_8_pos 0 +#define reg_tmr_timer0_threshold_15_8_len 8 +#define reg_tmr_timer0_threshold_15_8_lsb 8 +#define xd_p_reg_tmr_timer0_enable 0xA0CA +#define reg_tmr_timer0_enable_pos 0 +#define reg_tmr_timer0_enable_len 1 +#define reg_tmr_timer0_enable_lsb 0 +#define xd_p_reg_tmr_timer0_clk_sel 0xA0CA +#define reg_tmr_timer0_clk_sel_pos 1 +#define reg_tmr_timer0_clk_sel_len 1 +#define reg_tmr_timer0_clk_sel_lsb 0 +#define xd_p_reg_tmr_timer0_int 0xA0CA +#define reg_tmr_timer0_int_pos 2 +#define reg_tmr_timer0_int_len 1 +#define reg_tmr_timer0_int_lsb 0 +#define xd_p_reg_tmr_timer0_rst 0xA0CA +#define reg_tmr_timer0_rst_pos 3 +#define reg_tmr_timer0_rst_len 1 +#define reg_tmr_timer0_rst_lsb 0 +#define xd_r_reg_tmr_timer0_count_7_0 0xA0CB +#define reg_tmr_timer0_count_7_0_pos 0 +#define reg_tmr_timer0_count_7_0_len 8 +#define reg_tmr_timer0_count_7_0_lsb 0 +#define xd_r_reg_tmr_timer0_count_15_8 0xA0CC +#define reg_tmr_timer0_count_15_8_pos 0 +#define reg_tmr_timer0_count_15_8_len 8 +#define reg_tmr_timer0_count_15_8_lsb 8 +#define xd_p_reg_suspend 0xA0CD +#define reg_suspend_pos 0 +#define reg_suspend_len 1 +#define reg_suspend_lsb 0 +#define xd_p_reg_suspend_rdy 0xA0CD +#define reg_suspend_rdy_pos 1 +#define reg_suspend_rdy_len 1 +#define reg_suspend_rdy_lsb 0 +#define xd_p_reg_resume 0xA0CD +#define reg_resume_pos 2 +#define reg_resume_len 1 +#define reg_resume_lsb 0 +#define xd_p_reg_resume_rdy 0xA0CD +#define reg_resume_rdy_pos 3 +#define reg_resume_rdy_len 1 +#define reg_resume_rdy_lsb 0 +#define xd_p_reg_fmf 0xA0CE +#define reg_fmf_pos 0 +#define reg_fmf_len 8 +#define reg_fmf_lsb 0 +#define xd_p_ccid_accumulate_num_2k_7_0 0xA100 +#define ccid_accumulate_num_2k_7_0_pos 0 +#define ccid_accumulate_num_2k_7_0_len 8 +#define ccid_accumulate_num_2k_7_0_lsb 0 +#define xd_p_ccid_accumulate_num_2k_12_8 0xA101 +#define ccid_accumulate_num_2k_12_8_pos 0 +#define ccid_accumulate_num_2k_12_8_len 5 +#define ccid_accumulate_num_2k_12_8_lsb 8 +#define xd_p_ccid_accumulate_num_8k_7_0 0xA102 +#define ccid_accumulate_num_8k_7_0_pos 0 +#define ccid_accumulate_num_8k_7_0_len 8 +#define ccid_accumulate_num_8k_7_0_lsb 0 +#define xd_p_ccid_accumulate_num_8k_14_8 0xA103 +#define ccid_accumulate_num_8k_14_8_pos 0 +#define ccid_accumulate_num_8k_14_8_len 7 +#define ccid_accumulate_num_8k_14_8_lsb 8 +#define xd_p_ccid_desired_level_0 0xA103 +#define ccid_desired_level_0_pos 7 +#define ccid_desired_level_0_len 1 +#define ccid_desired_level_0_lsb 0 +#define xd_p_ccid_desired_level_8_1 0xA104 +#define ccid_desired_level_8_1_pos 0 +#define ccid_desired_level_8_1_len 8 +#define ccid_desired_level_8_1_lsb 1 +#define xd_p_ccid_apply_delay 0xA105 +#define ccid_apply_delay_pos 0 +#define ccid_apply_delay_len 7 +#define ccid_apply_delay_lsb 0 +#define xd_p_ccid_CCID_Threshold1 0xA106 +#define ccid_CCID_Threshold1_pos 0 +#define ccid_CCID_Threshold1_len 8 +#define ccid_CCID_Threshold1_lsb 0 +#define xd_p_ccid_CCID_Threshold2 0xA107 +#define ccid_CCID_Threshold2_pos 0 +#define ccid_CCID_Threshold2_len 8 +#define ccid_CCID_Threshold2_lsb 0 +#define xd_p_reg_ccid_gain_scale 0xA108 +#define reg_ccid_gain_scale_pos 0 +#define reg_ccid_gain_scale_len 4 +#define reg_ccid_gain_scale_lsb 0 +#define xd_p_reg_ccid2_passband_gain_set 0xA108 +#define reg_ccid2_passband_gain_set_pos 4 +#define reg_ccid2_passband_gain_set_len 4 +#define reg_ccid2_passband_gain_set_lsb 0 +#define xd_r_ccid_multiplier_7_0 0xA109 +#define ccid_multiplier_7_0_pos 0 +#define ccid_multiplier_7_0_len 8 +#define ccid_multiplier_7_0_lsb 0 +#define xd_r_ccid_multiplier_15_8 0xA10A +#define ccid_multiplier_15_8_pos 0 +#define ccid_multiplier_15_8_len 8 +#define ccid_multiplier_15_8_lsb 8 +#define xd_r_ccid_right_shift_bits 0xA10B +#define ccid_right_shift_bits_pos 0 +#define ccid_right_shift_bits_len 4 +#define ccid_right_shift_bits_lsb 0 +#define xd_r_reg_ccid_sx_7_0 0xA10C +#define reg_ccid_sx_7_0_pos 0 +#define reg_ccid_sx_7_0_len 8 +#define reg_ccid_sx_7_0_lsb 0 +#define xd_r_reg_ccid_sx_15_8 0xA10D +#define reg_ccid_sx_15_8_pos 0 +#define reg_ccid_sx_15_8_len 8 +#define reg_ccid_sx_15_8_lsb 8 +#define xd_r_reg_ccid_sx_21_16 0xA10E +#define reg_ccid_sx_21_16_pos 0 +#define reg_ccid_sx_21_16_len 6 +#define reg_ccid_sx_21_16_lsb 16 +#define xd_r_reg_ccid_sy_7_0 0xA110 +#define reg_ccid_sy_7_0_pos 0 +#define reg_ccid_sy_7_0_len 8 +#define reg_ccid_sy_7_0_lsb 0 +#define xd_r_reg_ccid_sy_15_8 0xA111 +#define reg_ccid_sy_15_8_pos 0 +#define reg_ccid_sy_15_8_len 8 +#define reg_ccid_sy_15_8_lsb 8 +#define xd_r_reg_ccid_sy_23_16 0xA112 +#define reg_ccid_sy_23_16_pos 0 +#define reg_ccid_sy_23_16_len 8 +#define reg_ccid_sy_23_16_lsb 16 +#define xd_r_reg_ccid2_sz_7_0 0xA114 +#define reg_ccid2_sz_7_0_pos 0 +#define reg_ccid2_sz_7_0_len 8 +#define reg_ccid2_sz_7_0_lsb 0 +#define xd_r_reg_ccid2_sz_15_8 0xA115 +#define reg_ccid2_sz_15_8_pos 0 +#define reg_ccid2_sz_15_8_len 8 +#define reg_ccid2_sz_15_8_lsb 8 +#define xd_r_reg_ccid2_sz_23_16 0xA116 +#define reg_ccid2_sz_23_16_pos 0 +#define reg_ccid2_sz_23_16_len 8 +#define reg_ccid2_sz_23_16_lsb 16 +#define xd_r_reg_ccid2_sz_25_24 0xA117 +#define reg_ccid2_sz_25_24_pos 0 +#define reg_ccid2_sz_25_24_len 2 +#define reg_ccid2_sz_25_24_lsb 24 +#define xd_r_reg_ccid2_sy_7_0 0xA118 +#define reg_ccid2_sy_7_0_pos 0 +#define reg_ccid2_sy_7_0_len 8 +#define reg_ccid2_sy_7_0_lsb 0 +#define xd_r_reg_ccid2_sy_15_8 0xA119 +#define reg_ccid2_sy_15_8_pos 0 +#define reg_ccid2_sy_15_8_len 8 +#define reg_ccid2_sy_15_8_lsb 8 +#define xd_r_reg_ccid2_sy_23_16 0xA11A +#define reg_ccid2_sy_23_16_pos 0 +#define reg_ccid2_sy_23_16_len 8 +#define reg_ccid2_sy_23_16_lsb 16 +#define xd_r_reg_ccid2_sy_25_24 0xA11B +#define reg_ccid2_sy_25_24_pos 0 +#define reg_ccid2_sy_25_24_len 2 +#define reg_ccid2_sy_25_24_lsb 24 +#define xd_p_dagc1_accumulate_num_2k_7_0 0xA120 +#define dagc1_accumulate_num_2k_7_0_pos 0 +#define dagc1_accumulate_num_2k_7_0_len 8 +#define dagc1_accumulate_num_2k_7_0_lsb 0 +#define xd_p_dagc1_accumulate_num_2k_12_8 0xA121 +#define dagc1_accumulate_num_2k_12_8_pos 0 +#define dagc1_accumulate_num_2k_12_8_len 5 +#define dagc1_accumulate_num_2k_12_8_lsb 8 +#define xd_p_dagc1_accumulate_num_8k_7_0 0xA122 +#define dagc1_accumulate_num_8k_7_0_pos 0 +#define dagc1_accumulate_num_8k_7_0_len 8 +#define dagc1_accumulate_num_8k_7_0_lsb 0 +#define xd_p_dagc1_accumulate_num_8k_14_8 0xA123 +#define dagc1_accumulate_num_8k_14_8_pos 0 +#define dagc1_accumulate_num_8k_14_8_len 7 +#define dagc1_accumulate_num_8k_14_8_lsb 8 +#define xd_p_dagc1_desired_level_0 0xA123 +#define dagc1_desired_level_0_pos 7 +#define dagc1_desired_level_0_len 1 +#define dagc1_desired_level_0_lsb 0 +#define xd_p_dagc1_desired_level_8_1 0xA124 +#define dagc1_desired_level_8_1_pos 0 +#define dagc1_desired_level_8_1_len 8 +#define dagc1_desired_level_8_1_lsb 1 +#define xd_p_dagc1_apply_delay 0xA125 +#define dagc1_apply_delay_pos 0 +#define dagc1_apply_delay_len 7 +#define dagc1_apply_delay_lsb 0 +#define xd_p_dagc1_bypass_scale_ctl 0xA126 +#define dagc1_bypass_scale_ctl_pos 0 +#define dagc1_bypass_scale_ctl_len 2 +#define dagc1_bypass_scale_ctl_lsb 0 +#define xd_p_reg_dagc1_in_sat_cnt_7_0 0xA127 +#define reg_dagc1_in_sat_cnt_7_0_pos 0 +#define reg_dagc1_in_sat_cnt_7_0_len 8 +#define reg_dagc1_in_sat_cnt_7_0_lsb 0 +#define xd_p_reg_dagc1_in_sat_cnt_15_8 0xA128 +#define reg_dagc1_in_sat_cnt_15_8_pos 0 +#define reg_dagc1_in_sat_cnt_15_8_len 8 +#define reg_dagc1_in_sat_cnt_15_8_lsb 8 +#define xd_p_reg_dagc1_in_sat_cnt_23_16 0xA129 +#define reg_dagc1_in_sat_cnt_23_16_pos 0 +#define reg_dagc1_in_sat_cnt_23_16_len 8 +#define reg_dagc1_in_sat_cnt_23_16_lsb 16 +#define xd_p_reg_dagc1_in_sat_cnt_31_24 0xA12A +#define reg_dagc1_in_sat_cnt_31_24_pos 0 +#define reg_dagc1_in_sat_cnt_31_24_len 8 +#define reg_dagc1_in_sat_cnt_31_24_lsb 24 +#define xd_p_reg_dagc1_out_sat_cnt_7_0 0xA12B +#define reg_dagc1_out_sat_cnt_7_0_pos 0 +#define reg_dagc1_out_sat_cnt_7_0_len 8 +#define reg_dagc1_out_sat_cnt_7_0_lsb 0 +#define xd_p_reg_dagc1_out_sat_cnt_15_8 0xA12C +#define reg_dagc1_out_sat_cnt_15_8_pos 0 +#define reg_dagc1_out_sat_cnt_15_8_len 8 +#define reg_dagc1_out_sat_cnt_15_8_lsb 8 +#define xd_p_reg_dagc1_out_sat_cnt_23_16 0xA12D +#define reg_dagc1_out_sat_cnt_23_16_pos 0 +#define reg_dagc1_out_sat_cnt_23_16_len 8 +#define reg_dagc1_out_sat_cnt_23_16_lsb 16 +#define xd_p_reg_dagc1_out_sat_cnt_31_24 0xA12E +#define reg_dagc1_out_sat_cnt_31_24_pos 0 +#define reg_dagc1_out_sat_cnt_31_24_len 8 +#define reg_dagc1_out_sat_cnt_31_24_lsb 24 +#define xd_r_dagc1_multiplier_7_0 0xA136 +#define dagc1_multiplier_7_0_pos 0 +#define dagc1_multiplier_7_0_len 8 +#define dagc1_multiplier_7_0_lsb 0 +#define xd_r_dagc1_multiplier_15_8 0xA137 +#define dagc1_multiplier_15_8_pos 0 +#define dagc1_multiplier_15_8_len 8 +#define dagc1_multiplier_15_8_lsb 8 +#define xd_r_dagc1_right_shift_bits 0xA138 +#define dagc1_right_shift_bits_pos 0 +#define dagc1_right_shift_bits_len 4 +#define dagc1_right_shift_bits_lsb 0 +#define xd_p_reg_bfs_fcw_7_0 0xA140 +#define reg_bfs_fcw_7_0_pos 0 +#define reg_bfs_fcw_7_0_len 8 +#define reg_bfs_fcw_7_0_lsb 0 +#define xd_p_reg_bfs_fcw_15_8 0xA141 +#define reg_bfs_fcw_15_8_pos 0 +#define reg_bfs_fcw_15_8_len 8 +#define reg_bfs_fcw_15_8_lsb 8 +#define xd_p_reg_bfs_fcw_22_16 0xA142 +#define reg_bfs_fcw_22_16_pos 0 +#define reg_bfs_fcw_22_16_len 7 +#define reg_bfs_fcw_22_16_lsb 16 +#define xd_p_reg_antif_sf_7_0 0xA144 +#define reg_antif_sf_7_0_pos 0 +#define reg_antif_sf_7_0_len 8 +#define reg_antif_sf_7_0_lsb 0 +#define xd_p_reg_antif_sf_11_8 0xA145 +#define reg_antif_sf_11_8_pos 0 +#define reg_antif_sf_11_8_len 4 +#define reg_antif_sf_11_8_lsb 8 +#define xd_r_bfs_fcw_q_7_0 0xA150 +#define bfs_fcw_q_7_0_pos 0 +#define bfs_fcw_q_7_0_len 8 +#define bfs_fcw_q_7_0_lsb 0 +#define xd_r_bfs_fcw_q_15_8 0xA151 +#define bfs_fcw_q_15_8_pos 0 +#define bfs_fcw_q_15_8_len 8 +#define bfs_fcw_q_15_8_lsb 8 +#define xd_r_bfs_fcw_q_22_16 0xA152 +#define bfs_fcw_q_22_16_pos 0 +#define bfs_fcw_q_22_16_len 7 +#define bfs_fcw_q_22_16_lsb 16 +#define xd_p_reg_dca_enu 0xA160 +#define reg_dca_enu_pos 0 +#define reg_dca_enu_len 1 +#define reg_dca_enu_lsb 0 +#define xd_p_reg_dca_enl 0xA160 +#define reg_dca_enl_pos 1 +#define reg_dca_enl_len 1 +#define reg_dca_enl_lsb 0 +#define xd_p_reg_dca_lower_chip 0xA160 +#define reg_dca_lower_chip_pos 2 +#define reg_dca_lower_chip_len 1 +#define reg_dca_lower_chip_lsb 0 +#define xd_p_reg_dca_upper_chip 0xA160 +#define reg_dca_upper_chip_pos 3 +#define reg_dca_upper_chip_len 1 +#define reg_dca_upper_chip_lsb 0 +#define xd_p_reg_dca_platch 0xA160 +#define reg_dca_platch_pos 4 +#define reg_dca_platch_len 1 +#define reg_dca_platch_lsb 0 +#define xd_p_reg_dca_th 0xA161 +#define reg_dca_th_pos 0 +#define reg_dca_th_len 5 +#define reg_dca_th_lsb 0 +#define xd_p_reg_dca_scale 0xA162 +#define reg_dca_scale_pos 0 +#define reg_dca_scale_len 4 +#define reg_dca_scale_lsb 0 +#define xd_p_reg_dca_tone_7_0 0xA163 +#define reg_dca_tone_7_0_pos 0 +#define reg_dca_tone_7_0_len 8 +#define reg_dca_tone_7_0_lsb 0 +#define xd_p_reg_dca_tone_12_8 0xA164 +#define reg_dca_tone_12_8_pos 0 +#define reg_dca_tone_12_8_len 5 +#define reg_dca_tone_12_8_lsb 8 +#define xd_p_reg_dca_time_7_0 0xA165 +#define reg_dca_time_7_0_pos 0 +#define reg_dca_time_7_0_len 8 +#define reg_dca_time_7_0_lsb 0 +#define xd_p_reg_dca_time_15_8 0xA166 +#define reg_dca_time_15_8_pos 0 +#define reg_dca_time_15_8_len 8 +#define reg_dca_time_15_8_lsb 8 +#define xd_r_dcasm 0xA167 +#define dcasm_pos 0 +#define dcasm_len 3 +#define dcasm_lsb 0 +#define xd_p_reg_qnt_valuew_7_0 0xA168 +#define reg_qnt_valuew_7_0_pos 0 +#define reg_qnt_valuew_7_0_len 8 +#define reg_qnt_valuew_7_0_lsb 0 +#define xd_p_reg_qnt_valuew_10_8 0xA169 +#define reg_qnt_valuew_10_8_pos 0 +#define reg_qnt_valuew_10_8_len 3 +#define reg_qnt_valuew_10_8_lsb 8 +#define xd_p_dca_sbx_gain_diff_7_0 0xA16A +#define dca_sbx_gain_diff_7_0_pos 0 +#define dca_sbx_gain_diff_7_0_len 8 +#define dca_sbx_gain_diff_7_0_lsb 0 +#define xd_p_dca_sbx_gain_diff_9_8 0xA16B +#define dca_sbx_gain_diff_9_8_pos 0 +#define dca_sbx_gain_diff_9_8_len 2 +#define dca_sbx_gain_diff_9_8_lsb 8 +#define xd_p_reg_dca_stand_alone 0xA16C +#define reg_dca_stand_alone_pos 0 +#define reg_dca_stand_alone_len 1 +#define reg_dca_stand_alone_lsb 0 +#define xd_p_reg_dca_upper_out_en 0xA16C +#define reg_dca_upper_out_en_pos 1 +#define reg_dca_upper_out_en_len 1 +#define reg_dca_upper_out_en_lsb 0 +#define xd_p_reg_dca_rc_en 0xA16C +#define reg_dca_rc_en_pos 2 +#define reg_dca_rc_en_len 1 +#define reg_dca_rc_en_lsb 0 +#define xd_p_reg_dca_retrain_send 0xA16C +#define reg_dca_retrain_send_pos 3 +#define reg_dca_retrain_send_len 1 +#define reg_dca_retrain_send_lsb 0 +#define xd_p_reg_dca_retrain_rec 0xA16C +#define reg_dca_retrain_rec_pos 4 +#define reg_dca_retrain_rec_len 1 +#define reg_dca_retrain_rec_lsb 0 +#define xd_p_reg_dca_api_tpsrdy 0xA16C +#define reg_dca_api_tpsrdy_pos 5 +#define reg_dca_api_tpsrdy_len 1 +#define reg_dca_api_tpsrdy_lsb 0 +#define xd_p_reg_dca_symbol_gap 0xA16D +#define reg_dca_symbol_gap_pos 0 +#define reg_dca_symbol_gap_len 4 +#define reg_dca_symbol_gap_lsb 0 +#define xd_p_reg_qnt_nfvaluew_7_0 0xA16E +#define reg_qnt_nfvaluew_7_0_pos 0 +#define reg_qnt_nfvaluew_7_0_len 8 +#define reg_qnt_nfvaluew_7_0_lsb 0 +#define xd_p_reg_qnt_nfvaluew_10_8 0xA16F +#define reg_qnt_nfvaluew_10_8_pos 0 +#define reg_qnt_nfvaluew_10_8_len 3 +#define reg_qnt_nfvaluew_10_8_lsb 8 +#define xd_p_reg_qnt_flatness_thr_7_0 0xA170 +#define reg_qnt_flatness_thr_7_0_pos 0 +#define reg_qnt_flatness_thr_7_0_len 8 +#define reg_qnt_flatness_thr_7_0_lsb 0 +#define xd_p_reg_qnt_flatness_thr_9_8 0xA171 +#define reg_qnt_flatness_thr_9_8_pos 0 +#define reg_qnt_flatness_thr_9_8_len 2 +#define reg_qnt_flatness_thr_9_8_lsb 8 +#define xd_p_reg_dca_tone_idx_5_0 0xA171 +#define reg_dca_tone_idx_5_0_pos 2 +#define reg_dca_tone_idx_5_0_len 6 +#define reg_dca_tone_idx_5_0_lsb 0 +#define xd_p_reg_dca_tone_idx_12_6 0xA172 +#define reg_dca_tone_idx_12_6_pos 0 +#define reg_dca_tone_idx_12_6_len 7 +#define reg_dca_tone_idx_12_6_lsb 6 +#define xd_p_reg_dca_data_vld 0xA173 +#define reg_dca_data_vld_pos 0 +#define reg_dca_data_vld_len 1 +#define reg_dca_data_vld_lsb 0 +#define xd_p_reg_dca_read_update 0xA173 +#define reg_dca_read_update_pos 1 +#define reg_dca_read_update_len 1 +#define reg_dca_read_update_lsb 0 +#define xd_r_reg_dca_data_re_5_0 0xA173 +#define reg_dca_data_re_5_0_pos 2 +#define reg_dca_data_re_5_0_len 6 +#define reg_dca_data_re_5_0_lsb 0 +#define xd_r_reg_dca_data_re_10_6 0xA174 +#define reg_dca_data_re_10_6_pos 0 +#define reg_dca_data_re_10_6_len 5 +#define reg_dca_data_re_10_6_lsb 6 +#define xd_r_reg_dca_data_im_7_0 0xA175 +#define reg_dca_data_im_7_0_pos 0 +#define reg_dca_data_im_7_0_len 8 +#define reg_dca_data_im_7_0_lsb 0 +#define xd_r_reg_dca_data_im_10_8 0xA176 +#define reg_dca_data_im_10_8_pos 0 +#define reg_dca_data_im_10_8_len 3 +#define reg_dca_data_im_10_8_lsb 8 +#define xd_r_reg_dca_data_h2_7_0 0xA178 +#define reg_dca_data_h2_7_0_pos 0 +#define reg_dca_data_h2_7_0_len 8 +#define reg_dca_data_h2_7_0_lsb 0 +#define xd_r_reg_dca_data_h2_9_8 0xA179 +#define reg_dca_data_h2_9_8_pos 0 +#define reg_dca_data_h2_9_8_len 2 +#define reg_dca_data_h2_9_8_lsb 8 +#define xd_p_reg_f_adc_7_0 0xA180 +#define reg_f_adc_7_0_pos 0 +#define reg_f_adc_7_0_len 8 +#define reg_f_adc_7_0_lsb 0 +#define xd_p_reg_f_adc_15_8 0xA181 +#define reg_f_adc_15_8_pos 0 +#define reg_f_adc_15_8_len 8 +#define reg_f_adc_15_8_lsb 8 +#define xd_p_reg_f_adc_23_16 0xA182 +#define reg_f_adc_23_16_pos 0 +#define reg_f_adc_23_16_len 8 +#define reg_f_adc_23_16_lsb 16 +#define xd_r_intp_mu_7_0 0xA190 +#define intp_mu_7_0_pos 0 +#define intp_mu_7_0_len 8 +#define intp_mu_7_0_lsb 0 +#define xd_r_intp_mu_15_8 0xA191 +#define intp_mu_15_8_pos 0 +#define intp_mu_15_8_len 8 +#define intp_mu_15_8_lsb 8 +#define xd_r_intp_mu_19_16 0xA192 +#define intp_mu_19_16_pos 0 +#define intp_mu_19_16_len 4 +#define intp_mu_19_16_lsb 16 +#define xd_p_reg_agc_rst 0xA1A0 +#define reg_agc_rst_pos 0 +#define reg_agc_rst_len 1 +#define reg_agc_rst_lsb 0 +#define xd_p_rf_agc_en 0xA1A0 +#define rf_agc_en_pos 1 +#define rf_agc_en_len 1 +#define rf_agc_en_lsb 0 +#define xd_p_rf_agc_dis 0xA1A0 +#define rf_agc_dis_pos 2 +#define rf_agc_dis_len 1 +#define rf_agc_dis_lsb 0 +#define xd_p_if_agc_rst 0xA1A0 +#define if_agc_rst_pos 3 +#define if_agc_rst_len 1 +#define if_agc_rst_lsb 0 +#define xd_p_if_agc_en 0xA1A0 +#define if_agc_en_pos 4 +#define if_agc_en_len 1 +#define if_agc_en_lsb 0 +#define xd_p_if_agc_dis 0xA1A0 +#define if_agc_dis_pos 5 +#define if_agc_dis_len 1 +#define if_agc_dis_lsb 0 +#define xd_p_agc_lock 0xA1A0 +#define agc_lock_pos 6 +#define agc_lock_len 1 +#define agc_lock_lsb 0 +#define xd_p_reg_tinr_rst 0xA1A1 +#define reg_tinr_rst_pos 0 +#define reg_tinr_rst_len 1 +#define reg_tinr_rst_lsb 0 +#define xd_p_reg_tinr_en 0xA1A1 +#define reg_tinr_en_pos 1 +#define reg_tinr_en_len 1 +#define reg_tinr_en_lsb 0 +#define xd_p_reg_ccifs_en 0xA1A2 +#define reg_ccifs_en_pos 0 +#define reg_ccifs_en_len 1 +#define reg_ccifs_en_lsb 0 +#define xd_p_reg_ccifs_dis 0xA1A2 +#define reg_ccifs_dis_pos 1 +#define reg_ccifs_dis_len 1 +#define reg_ccifs_dis_lsb 0 +#define xd_p_reg_ccifs_rst 0xA1A2 +#define reg_ccifs_rst_pos 2 +#define reg_ccifs_rst_len 1 +#define reg_ccifs_rst_lsb 0 +#define xd_p_reg_ccifs_byp 0xA1A2 +#define reg_ccifs_byp_pos 3 +#define reg_ccifs_byp_len 1 +#define reg_ccifs_byp_lsb 0 +#define xd_p_reg_ccif_en 0xA1A3 +#define reg_ccif_en_pos 0 +#define reg_ccif_en_len 1 +#define reg_ccif_en_lsb 0 +#define xd_p_reg_ccif_dis 0xA1A3 +#define reg_ccif_dis_pos 1 +#define reg_ccif_dis_len 1 +#define reg_ccif_dis_lsb 0 +#define xd_p_reg_ccif_rst 0xA1A3 +#define reg_ccif_rst_pos 2 +#define reg_ccif_rst_len 1 +#define reg_ccif_rst_lsb 0 +#define xd_p_reg_ccif_byp 0xA1A3 +#define reg_ccif_byp_pos 3 +#define reg_ccif_byp_len 1 +#define reg_ccif_byp_lsb 0 +#define xd_p_dagc1_rst 0xA1A4 +#define dagc1_rst_pos 0 +#define dagc1_rst_len 1 +#define dagc1_rst_lsb 0 +#define xd_p_dagc1_en 0xA1A4 +#define dagc1_en_pos 1 +#define dagc1_en_len 1 +#define dagc1_en_lsb 0 +#define xd_p_dagc1_mode 0xA1A4 +#define dagc1_mode_pos 2 +#define dagc1_mode_len 2 +#define dagc1_mode_lsb 0 +#define xd_p_dagc1_done 0xA1A4 +#define dagc1_done_pos 4 +#define dagc1_done_len 1 +#define dagc1_done_lsb 0 +#define xd_p_ccid_rst 0xA1A5 +#define ccid_rst_pos 0 +#define ccid_rst_len 1 +#define ccid_rst_lsb 0 +#define xd_p_ccid_en 0xA1A5 +#define ccid_en_pos 1 +#define ccid_en_len 1 +#define ccid_en_lsb 0 +#define xd_p_ccid_mode 0xA1A5 +#define ccid_mode_pos 2 +#define ccid_mode_len 2 +#define ccid_mode_lsb 0 +#define xd_p_ccid_done 0xA1A5 +#define ccid_done_pos 4 +#define ccid_done_len 1 +#define ccid_done_lsb 0 +#define xd_r_ccid_deted 0xA1A5 +#define ccid_deted_pos 5 +#define ccid_deted_len 1 +#define ccid_deted_lsb 0 +#define xd_p_ccid2_en 0xA1A5 +#define ccid2_en_pos 6 +#define ccid2_en_len 1 +#define ccid2_en_lsb 0 +#define xd_p_ccid2_done 0xA1A5 +#define ccid2_done_pos 7 +#define ccid2_done_len 1 +#define ccid2_done_lsb 0 +#define xd_p_reg_bfs_en 0xA1A6 +#define reg_bfs_en_pos 0 +#define reg_bfs_en_len 1 +#define reg_bfs_en_lsb 0 +#define xd_p_reg_bfs_dis 0xA1A6 +#define reg_bfs_dis_pos 1 +#define reg_bfs_dis_len 1 +#define reg_bfs_dis_lsb 0 +#define xd_p_reg_bfs_rst 0xA1A6 +#define reg_bfs_rst_pos 2 +#define reg_bfs_rst_len 1 +#define reg_bfs_rst_lsb 0 +#define xd_p_reg_bfs_byp 0xA1A6 +#define reg_bfs_byp_pos 3 +#define reg_bfs_byp_len 1 +#define reg_bfs_byp_lsb 0 +#define xd_p_reg_antif_en 0xA1A7 +#define reg_antif_en_pos 0 +#define reg_antif_en_len 1 +#define reg_antif_en_lsb 0 +#define xd_p_reg_antif_dis 0xA1A7 +#define reg_antif_dis_pos 1 +#define reg_antif_dis_len 1 +#define reg_antif_dis_lsb 0 +#define xd_p_reg_antif_rst 0xA1A7 +#define reg_antif_rst_pos 2 +#define reg_antif_rst_len 1 +#define reg_antif_rst_lsb 0 +#define xd_p_reg_antif_byp 0xA1A7 +#define reg_antif_byp_pos 3 +#define reg_antif_byp_len 1 +#define reg_antif_byp_lsb 0 +#define xd_p_intp_en 0xA1A8 +#define intp_en_pos 0 +#define intp_en_len 1 +#define intp_en_lsb 0 +#define xd_p_intp_dis 0xA1A8 +#define intp_dis_pos 1 +#define intp_dis_len 1 +#define intp_dis_lsb 0 +#define xd_p_intp_rst 0xA1A8 +#define intp_rst_pos 2 +#define intp_rst_len 1 +#define intp_rst_lsb 0 +#define xd_p_intp_byp 0xA1A8 +#define intp_byp_pos 3 +#define intp_byp_len 1 +#define intp_byp_lsb 0 +#define xd_p_reg_acif_en 0xA1A9 +#define reg_acif_en_pos 0 +#define reg_acif_en_len 1 +#define reg_acif_en_lsb 0 +#define xd_p_reg_acif_dis 0xA1A9 +#define reg_acif_dis_pos 1 +#define reg_acif_dis_len 1 +#define reg_acif_dis_lsb 0 +#define xd_p_reg_acif_rst 0xA1A9 +#define reg_acif_rst_pos 2 +#define reg_acif_rst_len 1 +#define reg_acif_rst_lsb 0 +#define xd_p_reg_acif_byp 0xA1A9 +#define reg_acif_byp_pos 3 +#define reg_acif_byp_len 1 +#define reg_acif_byp_lsb 0 +#define xd_p_reg_acif_sync_mode 0xA1A9 +#define reg_acif_sync_mode_pos 4 +#define reg_acif_sync_mode_len 1 +#define reg_acif_sync_mode_lsb 0 +#define xd_p_dagc2_rst 0xA1AA +#define dagc2_rst_pos 0 +#define dagc2_rst_len 1 +#define dagc2_rst_lsb 0 +#define xd_p_dagc2_en 0xA1AA +#define dagc2_en_pos 1 +#define dagc2_en_len 1 +#define dagc2_en_lsb 0 +#define xd_p_dagc2_mode 0xA1AA +#define dagc2_mode_pos 2 +#define dagc2_mode_len 2 +#define dagc2_mode_lsb 0 +#define xd_p_dagc2_done 0xA1AA +#define dagc2_done_pos 4 +#define dagc2_done_len 1 +#define dagc2_done_lsb 0 +#define xd_p_reg_dca_en 0xA1AB +#define reg_dca_en_pos 0 +#define reg_dca_en_len 1 +#define reg_dca_en_lsb 0 +#define xd_p_dagc2_accumulate_num_2k_7_0 0xA1C0 +#define dagc2_accumulate_num_2k_7_0_pos 0 +#define dagc2_accumulate_num_2k_7_0_len 8 +#define dagc2_accumulate_num_2k_7_0_lsb 0 +#define xd_p_dagc2_accumulate_num_2k_12_8 0xA1C1 +#define dagc2_accumulate_num_2k_12_8_pos 0 +#define dagc2_accumulate_num_2k_12_8_len 5 +#define dagc2_accumulate_num_2k_12_8_lsb 8 +#define xd_p_dagc2_accumulate_num_8k_7_0 0xA1C2 +#define dagc2_accumulate_num_8k_7_0_pos 0 +#define dagc2_accumulate_num_8k_7_0_len 8 +#define dagc2_accumulate_num_8k_7_0_lsb 0 +#define xd_p_dagc2_accumulate_num_8k_12_8 0xA1C3 +#define dagc2_accumulate_num_8k_12_8_pos 0 +#define dagc2_accumulate_num_8k_12_8_len 5 +#define dagc2_accumulate_num_8k_12_8_lsb 8 +#define xd_p_dagc2_desired_level_2_0 0xA1C3 +#define dagc2_desired_level_2_0_pos 5 +#define dagc2_desired_level_2_0_len 3 +#define dagc2_desired_level_2_0_lsb 0 +#define xd_p_dagc2_desired_level_8_3 0xA1C4 +#define dagc2_desired_level_8_3_pos 0 +#define dagc2_desired_level_8_3_len 6 +#define dagc2_desired_level_8_3_lsb 3 +#define xd_p_dagc2_apply_delay 0xA1C5 +#define dagc2_apply_delay_pos 0 +#define dagc2_apply_delay_len 7 +#define dagc2_apply_delay_lsb 0 +#define xd_p_dagc2_bypass_scale_ctl 0xA1C6 +#define dagc2_bypass_scale_ctl_pos 0 +#define dagc2_bypass_scale_ctl_len 3 +#define dagc2_bypass_scale_ctl_lsb 0 +#define xd_p_dagc2_programmable_shift1 0xA1C7 +#define dagc2_programmable_shift1_pos 0 +#define dagc2_programmable_shift1_len 8 +#define dagc2_programmable_shift1_lsb 0 +#define xd_p_dagc2_programmable_shift2 0xA1C8 +#define dagc2_programmable_shift2_pos 0 +#define dagc2_programmable_shift2_len 8 +#define dagc2_programmable_shift2_lsb 0 +#define xd_p_reg_dagc2_in_sat_cnt_7_0 0xA1C9 +#define reg_dagc2_in_sat_cnt_7_0_pos 0 +#define reg_dagc2_in_sat_cnt_7_0_len 8 +#define reg_dagc2_in_sat_cnt_7_0_lsb 0 +#define xd_p_reg_dagc2_in_sat_cnt_15_8 0xA1CA +#define reg_dagc2_in_sat_cnt_15_8_pos 0 +#define reg_dagc2_in_sat_cnt_15_8_len 8 +#define reg_dagc2_in_sat_cnt_15_8_lsb 8 +#define xd_p_reg_dagc2_in_sat_cnt_23_16 0xA1CB +#define reg_dagc2_in_sat_cnt_23_16_pos 0 +#define reg_dagc2_in_sat_cnt_23_16_len 8 +#define reg_dagc2_in_sat_cnt_23_16_lsb 16 +#define xd_p_reg_dagc2_in_sat_cnt_31_24 0xA1CC +#define reg_dagc2_in_sat_cnt_31_24_pos 0 +#define reg_dagc2_in_sat_cnt_31_24_len 8 +#define reg_dagc2_in_sat_cnt_31_24_lsb 24 +#define xd_p_reg_dagc2_out_sat_cnt_7_0 0xA1CD +#define reg_dagc2_out_sat_cnt_7_0_pos 0 +#define reg_dagc2_out_sat_cnt_7_0_len 8 +#define reg_dagc2_out_sat_cnt_7_0_lsb 0 +#define xd_p_reg_dagc2_out_sat_cnt_15_8 0xA1CE +#define reg_dagc2_out_sat_cnt_15_8_pos 0 +#define reg_dagc2_out_sat_cnt_15_8_len 8 +#define reg_dagc2_out_sat_cnt_15_8_lsb 8 +#define xd_p_reg_dagc2_out_sat_cnt_23_16 0xA1CF +#define reg_dagc2_out_sat_cnt_23_16_pos 0 +#define reg_dagc2_out_sat_cnt_23_16_len 8 +#define reg_dagc2_out_sat_cnt_23_16_lsb 16 +#define xd_p_reg_dagc2_out_sat_cnt_31_24 0xA1D0 +#define reg_dagc2_out_sat_cnt_31_24_pos 0 +#define reg_dagc2_out_sat_cnt_31_24_len 8 +#define reg_dagc2_out_sat_cnt_31_24_lsb 24 +#define xd_r_dagc2_multiplier_7_0 0xA1D6 +#define dagc2_multiplier_7_0_pos 0 +#define dagc2_multiplier_7_0_len 8 +#define dagc2_multiplier_7_0_lsb 0 +#define xd_r_dagc2_multiplier_15_8 0xA1D7 +#define dagc2_multiplier_15_8_pos 0 +#define dagc2_multiplier_15_8_len 8 +#define dagc2_multiplier_15_8_lsb 8 +#define xd_r_dagc2_right_shift_bits 0xA1D8 +#define dagc2_right_shift_bits_pos 0 +#define dagc2_right_shift_bits_len 4 +#define dagc2_right_shift_bits_lsb 0 +#define xd_p_cfoe_NS_coeff1_7_0 0xA200 +#define cfoe_NS_coeff1_7_0_pos 0 +#define cfoe_NS_coeff1_7_0_len 8 +#define cfoe_NS_coeff1_7_0_lsb 0 +#define xd_p_cfoe_NS_coeff1_15_8 0xA201 +#define cfoe_NS_coeff1_15_8_pos 0 +#define cfoe_NS_coeff1_15_8_len 8 +#define cfoe_NS_coeff1_15_8_lsb 8 +#define xd_p_cfoe_NS_coeff1_23_16 0xA202 +#define cfoe_NS_coeff1_23_16_pos 0 +#define cfoe_NS_coeff1_23_16_len 8 +#define cfoe_NS_coeff1_23_16_lsb 16 +#define xd_p_cfoe_NS_coeff1_25_24 0xA203 +#define cfoe_NS_coeff1_25_24_pos 0 +#define cfoe_NS_coeff1_25_24_len 2 +#define cfoe_NS_coeff1_25_24_lsb 24 +#define xd_p_cfoe_NS_coeff2_5_0 0xA203 +#define cfoe_NS_coeff2_5_0_pos 2 +#define cfoe_NS_coeff2_5_0_len 6 +#define cfoe_NS_coeff2_5_0_lsb 0 +#define xd_p_cfoe_NS_coeff2_13_6 0xA204 +#define cfoe_NS_coeff2_13_6_pos 0 +#define cfoe_NS_coeff2_13_6_len 8 +#define cfoe_NS_coeff2_13_6_lsb 6 +#define xd_p_cfoe_NS_coeff2_21_14 0xA205 +#define cfoe_NS_coeff2_21_14_pos 0 +#define cfoe_NS_coeff2_21_14_len 8 +#define cfoe_NS_coeff2_21_14_lsb 14 +#define xd_p_cfoe_NS_coeff2_24_22 0xA206 +#define cfoe_NS_coeff2_24_22_pos 0 +#define cfoe_NS_coeff2_24_22_len 3 +#define cfoe_NS_coeff2_24_22_lsb 22 +#define xd_p_cfoe_lf_c1_4_0 0xA206 +#define cfoe_lf_c1_4_0_pos 3 +#define cfoe_lf_c1_4_0_len 5 +#define cfoe_lf_c1_4_0_lsb 0 +#define xd_p_cfoe_lf_c1_12_5 0xA207 +#define cfoe_lf_c1_12_5_pos 0 +#define cfoe_lf_c1_12_5_len 8 +#define cfoe_lf_c1_12_5_lsb 5 +#define xd_p_cfoe_lf_c1_20_13 0xA208 +#define cfoe_lf_c1_20_13_pos 0 +#define cfoe_lf_c1_20_13_len 8 +#define cfoe_lf_c1_20_13_lsb 13 +#define xd_p_cfoe_lf_c1_25_21 0xA209 +#define cfoe_lf_c1_25_21_pos 0 +#define cfoe_lf_c1_25_21_len 5 +#define cfoe_lf_c1_25_21_lsb 21 +#define xd_p_cfoe_lf_c2_2_0 0xA209 +#define cfoe_lf_c2_2_0_pos 5 +#define cfoe_lf_c2_2_0_len 3 +#define cfoe_lf_c2_2_0_lsb 0 +#define xd_p_cfoe_lf_c2_10_3 0xA20A +#define cfoe_lf_c2_10_3_pos 0 +#define cfoe_lf_c2_10_3_len 8 +#define cfoe_lf_c2_10_3_lsb 3 +#define xd_p_cfoe_lf_c2_18_11 0xA20B +#define cfoe_lf_c2_18_11_pos 0 +#define cfoe_lf_c2_18_11_len 8 +#define cfoe_lf_c2_18_11_lsb 11 +#define xd_p_cfoe_lf_c2_25_19 0xA20C +#define cfoe_lf_c2_25_19_pos 0 +#define cfoe_lf_c2_25_19_len 7 +#define cfoe_lf_c2_25_19_lsb 19 +#define xd_p_cfoe_ifod_7_0 0xA20D +#define cfoe_ifod_7_0_pos 0 +#define cfoe_ifod_7_0_len 8 +#define cfoe_ifod_7_0_lsb 0 +#define xd_p_cfoe_ifod_10_8 0xA20E +#define cfoe_ifod_10_8_pos 0 +#define cfoe_ifod_10_8_len 3 +#define cfoe_ifod_10_8_lsb 8 +#define xd_p_cfoe_Divg_ctr_th 0xA20E +#define cfoe_Divg_ctr_th_pos 4 +#define cfoe_Divg_ctr_th_len 4 +#define cfoe_Divg_ctr_th_lsb 0 +#define xd_p_cfoe_FOT_divg_th 0xA20F +#define cfoe_FOT_divg_th_pos 0 +#define cfoe_FOT_divg_th_len 8 +#define cfoe_FOT_divg_th_lsb 0 +#define xd_p_cfoe_FOT_cnvg_th 0xA210 +#define cfoe_FOT_cnvg_th_pos 0 +#define cfoe_FOT_cnvg_th_len 8 +#define cfoe_FOT_cnvg_th_lsb 0 +#define xd_p_reg_cfoe_offset_7_0 0xA211 +#define reg_cfoe_offset_7_0_pos 0 +#define reg_cfoe_offset_7_0_len 8 +#define reg_cfoe_offset_7_0_lsb 0 +#define xd_p_reg_cfoe_offset_9_8 0xA212 +#define reg_cfoe_offset_9_8_pos 0 +#define reg_cfoe_offset_9_8_len 2 +#define reg_cfoe_offset_9_8_lsb 8 +#define xd_p_reg_cfoe_ifoe_sign_corr 0xA212 +#define reg_cfoe_ifoe_sign_corr_pos 2 +#define reg_cfoe_ifoe_sign_corr_len 1 +#define reg_cfoe_ifoe_sign_corr_lsb 0 +#define xd_r_cfoe_fot_LF_output_7_0 0xA218 +#define cfoe_fot_LF_output_7_0_pos 0 +#define cfoe_fot_LF_output_7_0_len 8 +#define cfoe_fot_LF_output_7_0_lsb 0 +#define xd_r_cfoe_fot_LF_output_15_8 0xA219 +#define cfoe_fot_LF_output_15_8_pos 0 +#define cfoe_fot_LF_output_15_8_len 8 +#define cfoe_fot_LF_output_15_8_lsb 8 +#define xd_r_cfoe_ifo_metric_7_0 0xA21A +#define cfoe_ifo_metric_7_0_pos 0 +#define cfoe_ifo_metric_7_0_len 8 +#define cfoe_ifo_metric_7_0_lsb 0 +#define xd_r_cfoe_ifo_metric_15_8 0xA21B +#define cfoe_ifo_metric_15_8_pos 0 +#define cfoe_ifo_metric_15_8_len 8 +#define cfoe_ifo_metric_15_8_lsb 8 +#define xd_r_cfoe_ifo_metric_23_16 0xA21C +#define cfoe_ifo_metric_23_16_pos 0 +#define cfoe_ifo_metric_23_16_len 8 +#define cfoe_ifo_metric_23_16_lsb 16 +#define xd_p_ste_Nu 0xA220 +#define ste_Nu_pos 0 +#define ste_Nu_len 2 +#define ste_Nu_lsb 0 +#define xd_p_ste_GI 0xA220 +#define ste_GI_pos 2 +#define ste_GI_len 3 +#define ste_GI_lsb 0 +#define xd_p_ste_symbol_num 0xA221 +#define ste_symbol_num_pos 0 +#define ste_symbol_num_len 2 +#define ste_symbol_num_lsb 0 +#define xd_p_ste_sample_num 0xA221 +#define ste_sample_num_pos 2 +#define ste_sample_num_len 2 +#define ste_sample_num_lsb 0 +#define xd_p_reg_ste_buf_en 0xA221 +#define reg_ste_buf_en_pos 7 +#define reg_ste_buf_en_len 1 +#define reg_ste_buf_en_lsb 0 +#define xd_p_ste_FFT_offset_7_0 0xA222 +#define ste_FFT_offset_7_0_pos 0 +#define ste_FFT_offset_7_0_len 8 +#define ste_FFT_offset_7_0_lsb 0 +#define xd_p_ste_FFT_offset_11_8 0xA223 +#define ste_FFT_offset_11_8_pos 0 +#define ste_FFT_offset_11_8_len 4 +#define ste_FFT_offset_11_8_lsb 8 +#define xd_p_reg_ste_tstmod 0xA223 +#define reg_ste_tstmod_pos 5 +#define reg_ste_tstmod_len 1 +#define reg_ste_tstmod_lsb 0 +#define xd_p_ste_adv_start_7_0 0xA224 +#define ste_adv_start_7_0_pos 0 +#define ste_adv_start_7_0_len 8 +#define ste_adv_start_7_0_lsb 0 +#define xd_p_ste_adv_start_10_8 0xA225 +#define ste_adv_start_10_8_pos 0 +#define ste_adv_start_10_8_len 3 +#define ste_adv_start_10_8_lsb 8 +#define xd_p_ste_adv_stop 0xA226 +#define ste_adv_stop_pos 0 +#define ste_adv_stop_len 8 +#define ste_adv_stop_lsb 0 +#define xd_r_ste_P_value_7_0 0xA228 +#define ste_P_value_7_0_pos 0 +#define ste_P_value_7_0_len 8 +#define ste_P_value_7_0_lsb 0 +#define xd_r_ste_P_value_10_8 0xA229 +#define ste_P_value_10_8_pos 0 +#define ste_P_value_10_8_len 3 +#define ste_P_value_10_8_lsb 8 +#define xd_r_ste_M_value_7_0 0xA22A +#define ste_M_value_7_0_pos 0 +#define ste_M_value_7_0_len 8 +#define ste_M_value_7_0_lsb 0 +#define xd_r_ste_M_value_10_8 0xA22B +#define ste_M_value_10_8_pos 0 +#define ste_M_value_10_8_len 3 +#define ste_M_value_10_8_lsb 8 +#define xd_r_ste_H1 0xA22C +#define ste_H1_pos 0 +#define ste_H1_len 7 +#define ste_H1_lsb 0 +#define xd_r_ste_H2 0xA22D +#define ste_H2_pos 0 +#define ste_H2_len 7 +#define ste_H2_lsb 0 +#define xd_r_ste_H3 0xA22E +#define ste_H3_pos 0 +#define ste_H3_len 7 +#define ste_H3_lsb 0 +#define xd_r_ste_H4 0xA22F +#define ste_H4_pos 0 +#define ste_H4_len 7 +#define ste_H4_lsb 0 +#define xd_r_ste_Corr_value_I_7_0 0xA230 +#define ste_Corr_value_I_7_0_pos 0 +#define ste_Corr_value_I_7_0_len 8 +#define ste_Corr_value_I_7_0_lsb 0 +#define xd_r_ste_Corr_value_I_15_8 0xA231 +#define ste_Corr_value_I_15_8_pos 0 +#define ste_Corr_value_I_15_8_len 8 +#define ste_Corr_value_I_15_8_lsb 8 +#define xd_r_ste_Corr_value_I_23_16 0xA232 +#define ste_Corr_value_I_23_16_pos 0 +#define ste_Corr_value_I_23_16_len 8 +#define ste_Corr_value_I_23_16_lsb 16 +#define xd_r_ste_Corr_value_I_27_24 0xA233 +#define ste_Corr_value_I_27_24_pos 0 +#define ste_Corr_value_I_27_24_len 4 +#define ste_Corr_value_I_27_24_lsb 24 +#define xd_r_ste_Corr_value_Q_7_0 0xA234 +#define ste_Corr_value_Q_7_0_pos 0 +#define ste_Corr_value_Q_7_0_len 8 +#define ste_Corr_value_Q_7_0_lsb 0 +#define xd_r_ste_Corr_value_Q_15_8 0xA235 +#define ste_Corr_value_Q_15_8_pos 0 +#define ste_Corr_value_Q_15_8_len 8 +#define ste_Corr_value_Q_15_8_lsb 8 +#define xd_r_ste_Corr_value_Q_23_16 0xA236 +#define ste_Corr_value_Q_23_16_pos 0 +#define ste_Corr_value_Q_23_16_len 8 +#define ste_Corr_value_Q_23_16_lsb 16 +#define xd_r_ste_Corr_value_Q_27_24 0xA237 +#define ste_Corr_value_Q_27_24_pos 0 +#define ste_Corr_value_Q_27_24_len 4 +#define ste_Corr_value_Q_27_24_lsb 24 +#define xd_r_ste_J_num_7_0 0xA238 +#define ste_J_num_7_0_pos 0 +#define ste_J_num_7_0_len 8 +#define ste_J_num_7_0_lsb 0 +#define xd_r_ste_J_num_15_8 0xA239 +#define ste_J_num_15_8_pos 0 +#define ste_J_num_15_8_len 8 +#define ste_J_num_15_8_lsb 8 +#define xd_r_ste_J_num_23_16 0xA23A +#define ste_J_num_23_16_pos 0 +#define ste_J_num_23_16_len 8 +#define ste_J_num_23_16_lsb 16 +#define xd_r_ste_J_num_31_24 0xA23B +#define ste_J_num_31_24_pos 0 +#define ste_J_num_31_24_len 8 +#define ste_J_num_31_24_lsb 24 +#define xd_r_ste_J_den_7_0 0xA23C +#define ste_J_den_7_0_pos 0 +#define ste_J_den_7_0_len 8 +#define ste_J_den_7_0_lsb 0 +#define xd_r_ste_J_den_15_8 0xA23D +#define ste_J_den_15_8_pos 0 +#define ste_J_den_15_8_len 8 +#define ste_J_den_15_8_lsb 8 +#define xd_r_ste_J_den_18_16 0xA23E +#define ste_J_den_18_16_pos 0 +#define ste_J_den_18_16_len 3 +#define ste_J_den_18_16_lsb 16 +#define xd_r_ste_Beacon_Indicator 0xA23E +#define ste_Beacon_Indicator_pos 4 +#define ste_Beacon_Indicator_len 1 +#define ste_Beacon_Indicator_lsb 0 +#define xd_r_tpsd_Frame_Num 0xA250 +#define tpsd_Frame_Num_pos 0 +#define tpsd_Frame_Num_len 2 +#define tpsd_Frame_Num_lsb 0 +#define xd_r_tpsd_Constel 0xA250 +#define tpsd_Constel_pos 2 +#define tpsd_Constel_len 2 +#define tpsd_Constel_lsb 0 +#define xd_r_tpsd_GI 0xA250 +#define tpsd_GI_pos 4 +#define tpsd_GI_len 2 +#define tpsd_GI_lsb 0 +#define xd_r_tpsd_Mode 0xA250 +#define tpsd_Mode_pos 6 +#define tpsd_Mode_len 2 +#define tpsd_Mode_lsb 0 +#define xd_r_tpsd_CR_HP 0xA251 +#define tpsd_CR_HP_pos 0 +#define tpsd_CR_HP_len 3 +#define tpsd_CR_HP_lsb 0 +#define xd_r_tpsd_CR_LP 0xA251 +#define tpsd_CR_LP_pos 3 +#define tpsd_CR_LP_len 3 +#define tpsd_CR_LP_lsb 0 +#define xd_r_tpsd_Hie 0xA252 +#define tpsd_Hie_pos 0 +#define tpsd_Hie_len 3 +#define tpsd_Hie_lsb 0 +#define xd_r_tpsd_Res_Bits 0xA252 +#define tpsd_Res_Bits_pos 3 +#define tpsd_Res_Bits_len 5 +#define tpsd_Res_Bits_lsb 0 +#define xd_r_tpsd_Res_Bits_0 0xA253 +#define tpsd_Res_Bits_0_pos 0 +#define tpsd_Res_Bits_0_len 1 +#define tpsd_Res_Bits_0_lsb 0 +#define xd_r_tpsd_LengthInd 0xA253 +#define tpsd_LengthInd_pos 1 +#define tpsd_LengthInd_len 6 +#define tpsd_LengthInd_lsb 0 +#define xd_r_tpsd_Cell_Id_7_0 0xA254 +#define tpsd_Cell_Id_7_0_pos 0 +#define tpsd_Cell_Id_7_0_len 8 +#define tpsd_Cell_Id_7_0_lsb 0 +#define xd_r_tpsd_Cell_Id_15_8 0xA255 +#define tpsd_Cell_Id_15_8_pos 0 +#define tpsd_Cell_Id_15_8_len 8 +#define tpsd_Cell_Id_15_8_lsb 0 +#define xd_p_reg_fft_mask_tone0_7_0 0xA260 +#define reg_fft_mask_tone0_7_0_pos 0 +#define reg_fft_mask_tone0_7_0_len 8 +#define reg_fft_mask_tone0_7_0_lsb 0 +#define xd_p_reg_fft_mask_tone0_12_8 0xA261 +#define reg_fft_mask_tone0_12_8_pos 0 +#define reg_fft_mask_tone0_12_8_len 5 +#define reg_fft_mask_tone0_12_8_lsb 8 +#define xd_p_reg_fft_mask_tone1_7_0 0xA262 +#define reg_fft_mask_tone1_7_0_pos 0 +#define reg_fft_mask_tone1_7_0_len 8 +#define reg_fft_mask_tone1_7_0_lsb 0 +#define xd_p_reg_fft_mask_tone1_12_8 0xA263 +#define reg_fft_mask_tone1_12_8_pos 0 +#define reg_fft_mask_tone1_12_8_len 5 +#define reg_fft_mask_tone1_12_8_lsb 8 +#define xd_p_reg_fft_mask_tone2_7_0 0xA264 +#define reg_fft_mask_tone2_7_0_pos 0 +#define reg_fft_mask_tone2_7_0_len 8 +#define reg_fft_mask_tone2_7_0_lsb 0 +#define xd_p_reg_fft_mask_tone2_12_8 0xA265 +#define reg_fft_mask_tone2_12_8_pos 0 +#define reg_fft_mask_tone2_12_8_len 5 +#define reg_fft_mask_tone2_12_8_lsb 8 +#define xd_p_reg_fft_mask_tone3_7_0 0xA266 +#define reg_fft_mask_tone3_7_0_pos 0 +#define reg_fft_mask_tone3_7_0_len 8 +#define reg_fft_mask_tone3_7_0_lsb 0 +#define xd_p_reg_fft_mask_tone3_12_8 0xA267 +#define reg_fft_mask_tone3_12_8_pos 0 +#define reg_fft_mask_tone3_12_8_len 5 +#define reg_fft_mask_tone3_12_8_lsb 8 +#define xd_p_reg_fft_mask_from0_7_0 0xA268 +#define reg_fft_mask_from0_7_0_pos 0 +#define reg_fft_mask_from0_7_0_len 8 +#define reg_fft_mask_from0_7_0_lsb 0 +#define xd_p_reg_fft_mask_from0_12_8 0xA269 +#define reg_fft_mask_from0_12_8_pos 0 +#define reg_fft_mask_from0_12_8_len 5 +#define reg_fft_mask_from0_12_8_lsb 8 +#define xd_p_reg_fft_mask_to0_7_0 0xA26A +#define reg_fft_mask_to0_7_0_pos 0 +#define reg_fft_mask_to0_7_0_len 8 +#define reg_fft_mask_to0_7_0_lsb 0 +#define xd_p_reg_fft_mask_to0_12_8 0xA26B +#define reg_fft_mask_to0_12_8_pos 0 +#define reg_fft_mask_to0_12_8_len 5 +#define reg_fft_mask_to0_12_8_lsb 8 +#define xd_p_reg_fft_mask_from1_7_0 0xA26C +#define reg_fft_mask_from1_7_0_pos 0 +#define reg_fft_mask_from1_7_0_len 8 +#define reg_fft_mask_from1_7_0_lsb 0 +#define xd_p_reg_fft_mask_from1_12_8 0xA26D +#define reg_fft_mask_from1_12_8_pos 0 +#define reg_fft_mask_from1_12_8_len 5 +#define reg_fft_mask_from1_12_8_lsb 8 +#define xd_p_reg_fft_mask_to1_7_0 0xA26E +#define reg_fft_mask_to1_7_0_pos 0 +#define reg_fft_mask_to1_7_0_len 8 +#define reg_fft_mask_to1_7_0_lsb 0 +#define xd_p_reg_fft_mask_to1_12_8 0xA26F +#define reg_fft_mask_to1_12_8_pos 0 +#define reg_fft_mask_to1_12_8_len 5 +#define reg_fft_mask_to1_12_8_lsb 8 +#define xd_p_reg_cge_idx0_7_0 0xA280 +#define reg_cge_idx0_7_0_pos 0 +#define reg_cge_idx0_7_0_len 8 +#define reg_cge_idx0_7_0_lsb 0 +#define xd_p_reg_cge_idx0_12_8 0xA281 +#define reg_cge_idx0_12_8_pos 0 +#define reg_cge_idx0_12_8_len 5 +#define reg_cge_idx0_12_8_lsb 8 +#define xd_p_reg_cge_idx1_7_0 0xA282 +#define reg_cge_idx1_7_0_pos 0 +#define reg_cge_idx1_7_0_len 8 +#define reg_cge_idx1_7_0_lsb 0 +#define xd_p_reg_cge_idx1_12_8 0xA283 +#define reg_cge_idx1_12_8_pos 0 +#define reg_cge_idx1_12_8_len 5 +#define reg_cge_idx1_12_8_lsb 8 +#define xd_p_reg_cge_idx2_7_0 0xA284 +#define reg_cge_idx2_7_0_pos 0 +#define reg_cge_idx2_7_0_len 8 +#define reg_cge_idx2_7_0_lsb 0 +#define xd_p_reg_cge_idx2_12_8 0xA285 +#define reg_cge_idx2_12_8_pos 0 +#define reg_cge_idx2_12_8_len 5 +#define reg_cge_idx2_12_8_lsb 8 +#define xd_p_reg_cge_idx3_7_0 0xA286 +#define reg_cge_idx3_7_0_pos 0 +#define reg_cge_idx3_7_0_len 8 +#define reg_cge_idx3_7_0_lsb 0 +#define xd_p_reg_cge_idx3_12_8 0xA287 +#define reg_cge_idx3_12_8_pos 0 +#define reg_cge_idx3_12_8_len 5 +#define reg_cge_idx3_12_8_lsb 8 +#define xd_p_reg_cge_idx4_7_0 0xA288 +#define reg_cge_idx4_7_0_pos 0 +#define reg_cge_idx4_7_0_len 8 +#define reg_cge_idx4_7_0_lsb 0 +#define xd_p_reg_cge_idx4_12_8 0xA289 +#define reg_cge_idx4_12_8_pos 0 +#define reg_cge_idx4_12_8_len 5 +#define reg_cge_idx4_12_8_lsb 8 +#define xd_p_reg_cge_idx5_7_0 0xA28A +#define reg_cge_idx5_7_0_pos 0 +#define reg_cge_idx5_7_0_len 8 +#define reg_cge_idx5_7_0_lsb 0 +#define xd_p_reg_cge_idx5_12_8 0xA28B +#define reg_cge_idx5_12_8_pos 0 +#define reg_cge_idx5_12_8_len 5 +#define reg_cge_idx5_12_8_lsb 8 +#define xd_p_reg_cge_idx6_7_0 0xA28C +#define reg_cge_idx6_7_0_pos 0 +#define reg_cge_idx6_7_0_len 8 +#define reg_cge_idx6_7_0_lsb 0 +#define xd_p_reg_cge_idx6_12_8 0xA28D +#define reg_cge_idx6_12_8_pos 0 +#define reg_cge_idx6_12_8_len 5 +#define reg_cge_idx6_12_8_lsb 8 +#define xd_p_reg_cge_idx7_7_0 0xA28E +#define reg_cge_idx7_7_0_pos 0 +#define reg_cge_idx7_7_0_len 8 +#define reg_cge_idx7_7_0_lsb 0 +#define xd_p_reg_cge_idx7_12_8 0xA28F +#define reg_cge_idx7_12_8_pos 0 +#define reg_cge_idx7_12_8_len 5 +#define reg_cge_idx7_12_8_lsb 8 +#define xd_p_reg_cge_idx8_7_0 0xA290 +#define reg_cge_idx8_7_0_pos 0 +#define reg_cge_idx8_7_0_len 8 +#define reg_cge_idx8_7_0_lsb 0 +#define xd_p_reg_cge_idx8_12_8 0xA291 +#define reg_cge_idx8_12_8_pos 0 +#define reg_cge_idx8_12_8_len 5 +#define reg_cge_idx8_12_8_lsb 8 +#define xd_p_reg_cge_idx9_7_0 0xA292 +#define reg_cge_idx9_7_0_pos 0 +#define reg_cge_idx9_7_0_len 8 +#define reg_cge_idx9_7_0_lsb 0 +#define xd_p_reg_cge_idx9_12_8 0xA293 +#define reg_cge_idx9_12_8_pos 0 +#define reg_cge_idx9_12_8_len 5 +#define reg_cge_idx9_12_8_lsb 8 +#define xd_p_reg_cge_idx10_7_0 0xA294 +#define reg_cge_idx10_7_0_pos 0 +#define reg_cge_idx10_7_0_len 8 +#define reg_cge_idx10_7_0_lsb 0 +#define xd_p_reg_cge_idx10_12_8 0xA295 +#define reg_cge_idx10_12_8_pos 0 +#define reg_cge_idx10_12_8_len 5 +#define reg_cge_idx10_12_8_lsb 8 +#define xd_p_reg_cge_idx11_7_0 0xA296 +#define reg_cge_idx11_7_0_pos 0 +#define reg_cge_idx11_7_0_len 8 +#define reg_cge_idx11_7_0_lsb 0 +#define xd_p_reg_cge_idx11_12_8 0xA297 +#define reg_cge_idx11_12_8_pos 0 +#define reg_cge_idx11_12_8_len 5 +#define reg_cge_idx11_12_8_lsb 8 +#define xd_p_reg_cge_idx12_7_0 0xA298 +#define reg_cge_idx12_7_0_pos 0 +#define reg_cge_idx12_7_0_len 8 +#define reg_cge_idx12_7_0_lsb 0 +#define xd_p_reg_cge_idx12_12_8 0xA299 +#define reg_cge_idx12_12_8_pos 0 +#define reg_cge_idx12_12_8_len 5 +#define reg_cge_idx12_12_8_lsb 8 +#define xd_p_reg_cge_idx13_7_0 0xA29A +#define reg_cge_idx13_7_0_pos 0 +#define reg_cge_idx13_7_0_len 8 +#define reg_cge_idx13_7_0_lsb 0 +#define xd_p_reg_cge_idx13_12_8 0xA29B +#define reg_cge_idx13_12_8_pos 0 +#define reg_cge_idx13_12_8_len 5 +#define reg_cge_idx13_12_8_lsb 8 +#define xd_p_reg_cge_idx14_7_0 0xA29C +#define reg_cge_idx14_7_0_pos 0 +#define reg_cge_idx14_7_0_len 8 +#define reg_cge_idx14_7_0_lsb 0 +#define xd_p_reg_cge_idx14_12_8 0xA29D +#define reg_cge_idx14_12_8_pos 0 +#define reg_cge_idx14_12_8_len 5 +#define reg_cge_idx14_12_8_lsb 8 +#define xd_p_reg_cge_idx15_7_0 0xA29E +#define reg_cge_idx15_7_0_pos 0 +#define reg_cge_idx15_7_0_len 8 +#define reg_cge_idx15_7_0_lsb 0 +#define xd_p_reg_cge_idx15_12_8 0xA29F +#define reg_cge_idx15_12_8_pos 0 +#define reg_cge_idx15_12_8_len 5 +#define reg_cge_idx15_12_8_lsb 8 +#define xd_r_reg_fft_crc 0xA2A8 +#define reg_fft_crc_pos 0 +#define reg_fft_crc_len 8 +#define reg_fft_crc_lsb 0 +#define xd_p_fd_fft_shift_max 0xA2A9 +#define fd_fft_shift_max_pos 0 +#define fd_fft_shift_max_len 4 +#define fd_fft_shift_max_lsb 0 +#define xd_r_fd_fft_shift 0xA2A9 +#define fd_fft_shift_pos 4 +#define fd_fft_shift_len 4 +#define fd_fft_shift_lsb 0 +#define xd_r_fd_fft_frame_num 0xA2AA +#define fd_fft_frame_num_pos 0 +#define fd_fft_frame_num_len 2 +#define fd_fft_frame_num_lsb 0 +#define xd_r_fd_fft_symbol_count 0xA2AB +#define fd_fft_symbol_count_pos 0 +#define fd_fft_symbol_count_len 7 +#define fd_fft_symbol_count_lsb 0 +#define xd_r_reg_fft_idx_max_7_0 0xA2AC +#define reg_fft_idx_max_7_0_pos 0 +#define reg_fft_idx_max_7_0_len 8 +#define reg_fft_idx_max_7_0_lsb 0 +#define xd_r_reg_fft_idx_max_12_8 0xA2AD +#define reg_fft_idx_max_12_8_pos 0 +#define reg_fft_idx_max_12_8_len 5 +#define reg_fft_idx_max_12_8_lsb 8 +#define xd_p_reg_cge_program 0xA2AE +#define reg_cge_program_pos 0 +#define reg_cge_program_len 1 +#define reg_cge_program_lsb 0 +#define xd_p_reg_cge_fixed 0xA2AE +#define reg_cge_fixed_pos 1 +#define reg_cge_fixed_len 1 +#define reg_cge_fixed_lsb 0 +#define xd_p_reg_fft_rotate_en 0xA2AE +#define reg_fft_rotate_en_pos 2 +#define reg_fft_rotate_en_len 1 +#define reg_fft_rotate_en_lsb 0 +#define xd_p_reg_fft_rotate_base_4_0 0xA2AE +#define reg_fft_rotate_base_4_0_pos 3 +#define reg_fft_rotate_base_4_0_len 5 +#define reg_fft_rotate_base_4_0_lsb 0 +#define xd_p_reg_fft_rotate_base_12_5 0xA2AF +#define reg_fft_rotate_base_12_5_pos 0 +#define reg_fft_rotate_base_12_5_len 8 +#define reg_fft_rotate_base_12_5_lsb 5 +#define xd_p_reg_gp_trigger_fd 0xA2B8 +#define reg_gp_trigger_fd_pos 0 +#define reg_gp_trigger_fd_len 1 +#define reg_gp_trigger_fd_lsb 0 +#define xd_p_reg_trigger_sel_fd 0xA2B8 +#define reg_trigger_sel_fd_pos 1 +#define reg_trigger_sel_fd_len 2 +#define reg_trigger_sel_fd_lsb 0 +#define xd_p_reg_trigger_module_sel_fd 0xA2B9 +#define reg_trigger_module_sel_fd_pos 0 +#define reg_trigger_module_sel_fd_len 6 +#define reg_trigger_module_sel_fd_lsb 0 +#define xd_p_reg_trigger_set_sel_fd 0xA2BA +#define reg_trigger_set_sel_fd_pos 0 +#define reg_trigger_set_sel_fd_len 6 +#define reg_trigger_set_sel_fd_lsb 0 +#define xd_p_reg_fd_noname_7_0 0xA2BC +#define reg_fd_noname_7_0_pos 0 +#define reg_fd_noname_7_0_len 8 +#define reg_fd_noname_7_0_lsb 0 +#define xd_p_reg_fd_noname_15_8 0xA2BD +#define reg_fd_noname_15_8_pos 0 +#define reg_fd_noname_15_8_len 8 +#define reg_fd_noname_15_8_lsb 8 +#define xd_p_reg_fd_noname_23_16 0xA2BE +#define reg_fd_noname_23_16_pos 0 +#define reg_fd_noname_23_16_len 8 +#define reg_fd_noname_23_16_lsb 16 +#define xd_p_reg_fd_noname_31_24 0xA2BF +#define reg_fd_noname_31_24_pos 0 +#define reg_fd_noname_31_24_len 8 +#define reg_fd_noname_31_24_lsb 24 +#define xd_r_fd_fpcc_cp_corr_signn 0xA2C0 +#define fd_fpcc_cp_corr_signn_pos 0 +#define fd_fpcc_cp_corr_signn_len 8 +#define fd_fpcc_cp_corr_signn_lsb 0 +#define xd_p_reg_feq_s1 0xA2C1 +#define reg_feq_s1_pos 0 +#define reg_feq_s1_len 5 +#define reg_feq_s1_lsb 0 +#define xd_p_fd_fpcc_cp_corr_tone_th 0xA2C2 +#define fd_fpcc_cp_corr_tone_th_pos 0 +#define fd_fpcc_cp_corr_tone_th_len 6 +#define fd_fpcc_cp_corr_tone_th_lsb 0 +#define xd_p_fd_fpcc_cp_corr_symbol_log_th 0xA2C3 +#define fd_fpcc_cp_corr_symbol_log_th_pos 0 +#define fd_fpcc_cp_corr_symbol_log_th_len 4 +#define fd_fpcc_cp_corr_symbol_log_th_lsb 0 +#define xd_p_fd_fpcc_cp_corr_int 0xA2C4 +#define fd_fpcc_cp_corr_int_pos 0 +#define fd_fpcc_cp_corr_int_len 1 +#define fd_fpcc_cp_corr_int_lsb 0 +#define xd_p_reg_sfoe_ns_7_0 0xA320 +#define reg_sfoe_ns_7_0_pos 0 +#define reg_sfoe_ns_7_0_len 8 +#define reg_sfoe_ns_7_0_lsb 0 +#define xd_p_reg_sfoe_ns_14_8 0xA321 +#define reg_sfoe_ns_14_8_pos 0 +#define reg_sfoe_ns_14_8_len 7 +#define reg_sfoe_ns_14_8_lsb 8 +#define xd_p_reg_sfoe_c1_7_0 0xA322 +#define reg_sfoe_c1_7_0_pos 0 +#define reg_sfoe_c1_7_0_len 8 +#define reg_sfoe_c1_7_0_lsb 0 +#define xd_p_reg_sfoe_c1_15_8 0xA323 +#define reg_sfoe_c1_15_8_pos 0 +#define reg_sfoe_c1_15_8_len 8 +#define reg_sfoe_c1_15_8_lsb 8 +#define xd_p_reg_sfoe_c1_17_16 0xA324 +#define reg_sfoe_c1_17_16_pos 0 +#define reg_sfoe_c1_17_16_len 2 +#define reg_sfoe_c1_17_16_lsb 16 +#define xd_p_reg_sfoe_c2_7_0 0xA325 +#define reg_sfoe_c2_7_0_pos 0 +#define reg_sfoe_c2_7_0_len 8 +#define reg_sfoe_c2_7_0_lsb 0 +#define xd_p_reg_sfoe_c2_15_8 0xA326 +#define reg_sfoe_c2_15_8_pos 0 +#define reg_sfoe_c2_15_8_len 8 +#define reg_sfoe_c2_15_8_lsb 8 +#define xd_p_reg_sfoe_c2_17_16 0xA327 +#define reg_sfoe_c2_17_16_pos 0 +#define reg_sfoe_c2_17_16_len 2 +#define reg_sfoe_c2_17_16_lsb 16 +#define xd_r_reg_sfoe_out_9_2 0xA328 +#define reg_sfoe_out_9_2_pos 0 +#define reg_sfoe_out_9_2_len 8 +#define reg_sfoe_out_9_2_lsb 0 +#define xd_r_reg_sfoe_out_1_0 0xA329 +#define reg_sfoe_out_1_0_pos 0 +#define reg_sfoe_out_1_0_len 2 +#define reg_sfoe_out_1_0_lsb 0 +#define xd_p_reg_sfoe_lm_counter_th 0xA32A +#define reg_sfoe_lm_counter_th_pos 0 +#define reg_sfoe_lm_counter_th_len 4 +#define reg_sfoe_lm_counter_th_lsb 0 +#define xd_p_reg_sfoe_convg_th 0xA32B +#define reg_sfoe_convg_th_pos 0 +#define reg_sfoe_convg_th_len 8 +#define reg_sfoe_convg_th_lsb 0 +#define xd_p_reg_sfoe_divg_th 0xA32C +#define reg_sfoe_divg_th_pos 0 +#define reg_sfoe_divg_th_len 8 +#define reg_sfoe_divg_th_lsb 0 +#define xd_p_fd_tpsd_en 0xA330 +#define fd_tpsd_en_pos 0 +#define fd_tpsd_en_len 1 +#define fd_tpsd_en_lsb 0 +#define xd_p_fd_tpsd_dis 0xA330 +#define fd_tpsd_dis_pos 1 +#define fd_tpsd_dis_len 1 +#define fd_tpsd_dis_lsb 0 +#define xd_p_fd_tpsd_rst 0xA330 +#define fd_tpsd_rst_pos 2 +#define fd_tpsd_rst_len 1 +#define fd_tpsd_rst_lsb 0 +#define xd_p_fd_tpsd_lock 0xA330 +#define fd_tpsd_lock_pos 3 +#define fd_tpsd_lock_len 1 +#define fd_tpsd_lock_lsb 0 +#define xd_r_fd_tpsd_s19 0xA330 +#define fd_tpsd_s19_pos 4 +#define fd_tpsd_s19_len 1 +#define fd_tpsd_s19_lsb 0 +#define xd_r_fd_tpsd_s17 0xA330 +#define fd_tpsd_s17_pos 5 +#define fd_tpsd_s17_len 1 +#define fd_tpsd_s17_lsb 0 +#define xd_p_fd_sfr_ste_en 0xA331 +#define fd_sfr_ste_en_pos 0 +#define fd_sfr_ste_en_len 1 +#define fd_sfr_ste_en_lsb 0 +#define xd_p_fd_sfr_ste_dis 0xA331 +#define fd_sfr_ste_dis_pos 1 +#define fd_sfr_ste_dis_len 1 +#define fd_sfr_ste_dis_lsb 0 +#define xd_p_fd_sfr_ste_rst 0xA331 +#define fd_sfr_ste_rst_pos 2 +#define fd_sfr_ste_rst_len 1 +#define fd_sfr_ste_rst_lsb 0 +#define xd_p_fd_sfr_ste_mode 0xA331 +#define fd_sfr_ste_mode_pos 3 +#define fd_sfr_ste_mode_len 1 +#define fd_sfr_ste_mode_lsb 0 +#define xd_p_fd_sfr_ste_done 0xA331 +#define fd_sfr_ste_done_pos 4 +#define fd_sfr_ste_done_len 1 +#define fd_sfr_ste_done_lsb 0 +#define xd_p_reg_cfoe_ffoe_en 0xA332 +#define reg_cfoe_ffoe_en_pos 0 +#define reg_cfoe_ffoe_en_len 1 +#define reg_cfoe_ffoe_en_lsb 0 +#define xd_p_reg_cfoe_ffoe_dis 0xA332 +#define reg_cfoe_ffoe_dis_pos 1 +#define reg_cfoe_ffoe_dis_len 1 +#define reg_cfoe_ffoe_dis_lsb 0 +#define xd_p_reg_cfoe_ffoe_rst 0xA332 +#define reg_cfoe_ffoe_rst_pos 2 +#define reg_cfoe_ffoe_rst_len 1 +#define reg_cfoe_ffoe_rst_lsb 0 +#define xd_p_reg_cfoe_ifoe_en 0xA332 +#define reg_cfoe_ifoe_en_pos 3 +#define reg_cfoe_ifoe_en_len 1 +#define reg_cfoe_ifoe_en_lsb 0 +#define xd_p_reg_cfoe_ifoe_dis 0xA332 +#define reg_cfoe_ifoe_dis_pos 4 +#define reg_cfoe_ifoe_dis_len 1 +#define reg_cfoe_ifoe_dis_lsb 0 +#define xd_p_reg_cfoe_ifoe_rst 0xA332 +#define reg_cfoe_ifoe_rst_pos 5 +#define reg_cfoe_ifoe_rst_len 1 +#define reg_cfoe_ifoe_rst_lsb 0 +#define xd_p_reg_cfoe_fot_en 0xA332 +#define reg_cfoe_fot_en_pos 6 +#define reg_cfoe_fot_en_len 1 +#define reg_cfoe_fot_en_lsb 0 +#define xd_p_reg_cfoe_fot_lm_en 0xA332 +#define reg_cfoe_fot_lm_en_pos 7 +#define reg_cfoe_fot_lm_en_len 1 +#define reg_cfoe_fot_lm_en_lsb 0 +#define xd_p_reg_cfoe_fot_rst 0xA333 +#define reg_cfoe_fot_rst_pos 0 +#define reg_cfoe_fot_rst_len 1 +#define reg_cfoe_fot_rst_lsb 0 +#define xd_r_fd_cfoe_ffoe_done 0xA333 +#define fd_cfoe_ffoe_done_pos 1 +#define fd_cfoe_ffoe_done_len 1 +#define fd_cfoe_ffoe_done_lsb 0 +#define xd_p_fd_cfoe_metric_vld 0xA333 +#define fd_cfoe_metric_vld_pos 2 +#define fd_cfoe_metric_vld_len 1 +#define fd_cfoe_metric_vld_lsb 0 +#define xd_p_reg_cfoe_ifod_vld 0xA333 +#define reg_cfoe_ifod_vld_pos 3 +#define reg_cfoe_ifod_vld_len 1 +#define reg_cfoe_ifod_vld_lsb 0 +#define xd_r_fd_cfoe_ifoe_done 0xA333 +#define fd_cfoe_ifoe_done_pos 4 +#define fd_cfoe_ifoe_done_len 1 +#define fd_cfoe_ifoe_done_lsb 0 +#define xd_r_fd_cfoe_fot_valid 0xA333 +#define fd_cfoe_fot_valid_pos 5 +#define fd_cfoe_fot_valid_len 1 +#define fd_cfoe_fot_valid_lsb 0 +#define xd_p_reg_cfoe_divg_int 0xA333 +#define reg_cfoe_divg_int_pos 6 +#define reg_cfoe_divg_int_len 1 +#define reg_cfoe_divg_int_lsb 0 +#define xd_r_reg_cfoe_divg_flag 0xA333 +#define reg_cfoe_divg_flag_pos 7 +#define reg_cfoe_divg_flag_len 1 +#define reg_cfoe_divg_flag_lsb 0 +#define xd_p_reg_sfoe_en 0xA334 +#define reg_sfoe_en_pos 0 +#define reg_sfoe_en_len 1 +#define reg_sfoe_en_lsb 0 +#define xd_p_reg_sfoe_dis 0xA334 +#define reg_sfoe_dis_pos 1 +#define reg_sfoe_dis_len 1 +#define reg_sfoe_dis_lsb 0 +#define xd_p_reg_sfoe_rst 0xA334 +#define reg_sfoe_rst_pos 2 +#define reg_sfoe_rst_len 1 +#define reg_sfoe_rst_lsb 0 +#define xd_p_reg_sfoe_vld_int 0xA334 +#define reg_sfoe_vld_int_pos 3 +#define reg_sfoe_vld_int_len 1 +#define reg_sfoe_vld_int_lsb 0 +#define xd_p_reg_sfoe_lm_en 0xA334 +#define reg_sfoe_lm_en_pos 4 +#define reg_sfoe_lm_en_len 1 +#define reg_sfoe_lm_en_lsb 0 +#define xd_p_reg_sfoe_divg_int 0xA334 +#define reg_sfoe_divg_int_pos 5 +#define reg_sfoe_divg_int_len 1 +#define reg_sfoe_divg_int_lsb 0 +#define xd_r_reg_sfoe_divg_flag 0xA334 +#define reg_sfoe_divg_flag_pos 6 +#define reg_sfoe_divg_flag_len 1 +#define reg_sfoe_divg_flag_lsb 0 +#define xd_p_reg_fft_rst 0xA335 +#define reg_fft_rst_pos 0 +#define reg_fft_rst_len 1 +#define reg_fft_rst_lsb 0 +#define xd_p_reg_fft_fast_beacon 0xA335 +#define reg_fft_fast_beacon_pos 1 +#define reg_fft_fast_beacon_len 1 +#define reg_fft_fast_beacon_lsb 0 +#define xd_p_reg_fft_fast_valid 0xA335 +#define reg_fft_fast_valid_pos 2 +#define reg_fft_fast_valid_len 1 +#define reg_fft_fast_valid_lsb 0 +#define xd_p_reg_fft_mask_en 0xA335 +#define reg_fft_mask_en_pos 3 +#define reg_fft_mask_en_len 1 +#define reg_fft_mask_en_lsb 0 +#define xd_p_reg_fft_crc_en 0xA335 +#define reg_fft_crc_en_pos 4 +#define reg_fft_crc_en_len 1 +#define reg_fft_crc_en_lsb 0 +#define xd_p_reg_finr_en 0xA336 +#define reg_finr_en_pos 0 +#define reg_finr_en_len 1 +#define reg_finr_en_lsb 0 +#define xd_p_fd_fste_en 0xA337 +#define fd_fste_en_pos 1 +#define fd_fste_en_len 1 +#define fd_fste_en_lsb 0 +#define xd_p_fd_sqi_tps_level_shift 0xA338 +#define fd_sqi_tps_level_shift_pos 0 +#define fd_sqi_tps_level_shift_len 8 +#define fd_sqi_tps_level_shift_lsb 0 +#define xd_p_fd_pilot_ma_len 0xA339 +#define fd_pilot_ma_len_pos 0 +#define fd_pilot_ma_len_len 6 +#define fd_pilot_ma_len_lsb 0 +#define xd_p_fd_tps_ma_len 0xA33A +#define fd_tps_ma_len_pos 0 +#define fd_tps_ma_len_len 6 +#define fd_tps_ma_len_lsb 0 +#define xd_p_fd_sqi_s3 0xA33B +#define fd_sqi_s3_pos 0 +#define fd_sqi_s3_len 8 +#define fd_sqi_s3_lsb 0 +#define xd_p_fd_sqi_dummy_reg_0 0xA33C +#define fd_sqi_dummy_reg_0_pos 0 +#define fd_sqi_dummy_reg_0_len 1 +#define fd_sqi_dummy_reg_0_lsb 0 +#define xd_p_fd_sqi_debug_sel 0xA33C +#define fd_sqi_debug_sel_pos 1 +#define fd_sqi_debug_sel_len 2 +#define fd_sqi_debug_sel_lsb 0 +#define xd_p_fd_sqi_s2 0xA33C +#define fd_sqi_s2_pos 3 +#define fd_sqi_s2_len 5 +#define fd_sqi_s2_lsb 0 +#define xd_p_fd_sqi_dummy_reg_1 0xA33D +#define fd_sqi_dummy_reg_1_pos 0 +#define fd_sqi_dummy_reg_1_len 1 +#define fd_sqi_dummy_reg_1_lsb 0 +#define xd_p_fd_inr_ignore 0xA33D +#define fd_inr_ignore_pos 1 +#define fd_inr_ignore_len 1 +#define fd_inr_ignore_lsb 0 +#define xd_p_fd_pilot_ignore 0xA33D +#define fd_pilot_ignore_pos 2 +#define fd_pilot_ignore_len 1 +#define fd_pilot_ignore_lsb 0 +#define xd_p_fd_etps_ignore 0xA33D +#define fd_etps_ignore_pos 3 +#define fd_etps_ignore_len 1 +#define fd_etps_ignore_lsb 0 +#define xd_p_fd_sqi_s1 0xA33D +#define fd_sqi_s1_pos 4 +#define fd_sqi_s1_len 4 +#define fd_sqi_s1_lsb 0 +#define xd_p_reg_fste_ehw_7_0 0xA33E +#define reg_fste_ehw_7_0_pos 0 +#define reg_fste_ehw_7_0_len 8 +#define reg_fste_ehw_7_0_lsb 0 +#define xd_p_reg_fste_ehw_9_8 0xA33F +#define reg_fste_ehw_9_8_pos 0 +#define reg_fste_ehw_9_8_len 2 +#define reg_fste_ehw_9_8_lsb 8 +#define xd_p_reg_fste_i_adj_vld 0xA33F +#define reg_fste_i_adj_vld_pos 2 +#define reg_fste_i_adj_vld_len 1 +#define reg_fste_i_adj_vld_lsb 0 +#define xd_p_reg_fste_phase_ini_7_0 0xA340 +#define reg_fste_phase_ini_7_0_pos 0 +#define reg_fste_phase_ini_7_0_len 8 +#define reg_fste_phase_ini_7_0_lsb 0 +#define xd_p_reg_fste_phase_ini_11_8 0xA341 +#define reg_fste_phase_ini_11_8_pos 0 +#define reg_fste_phase_ini_11_8_len 4 +#define reg_fste_phase_ini_11_8_lsb 8 +#define xd_p_reg_fste_phase_inc_3_0 0xA341 +#define reg_fste_phase_inc_3_0_pos 4 +#define reg_fste_phase_inc_3_0_len 4 +#define reg_fste_phase_inc_3_0_lsb 0 +#define xd_p_reg_fste_phase_inc_11_4 0xA342 +#define reg_fste_phase_inc_11_4_pos 0 +#define reg_fste_phase_inc_11_4_len 8 +#define reg_fste_phase_inc_11_4_lsb 4 +#define xd_p_reg_fste_acum_cost_cnt_max 0xA343 +#define reg_fste_acum_cost_cnt_max_pos 0 +#define reg_fste_acum_cost_cnt_max_len 4 +#define reg_fste_acum_cost_cnt_max_lsb 0 +#define xd_p_reg_fste_step_size_std 0xA343 +#define reg_fste_step_size_std_pos 4 +#define reg_fste_step_size_std_len 4 +#define reg_fste_step_size_std_lsb 0 +#define xd_p_reg_fste_step_size_max 0xA344 +#define reg_fste_step_size_max_pos 0 +#define reg_fste_step_size_max_len 4 +#define reg_fste_step_size_max_lsb 0 +#define xd_p_reg_fste_step_size_min 0xA344 +#define reg_fste_step_size_min_pos 4 +#define reg_fste_step_size_min_len 4 +#define reg_fste_step_size_min_lsb 0 +#define xd_p_reg_fste_frac_step_size_7_0 0xA345 +#define reg_fste_frac_step_size_7_0_pos 0 +#define reg_fste_frac_step_size_7_0_len 8 +#define reg_fste_frac_step_size_7_0_lsb 0 +#define xd_p_reg_fste_frac_step_size_15_8 0xA346 +#define reg_fste_frac_step_size_15_8_pos 0 +#define reg_fste_frac_step_size_15_8_len 8 +#define reg_fste_frac_step_size_15_8_lsb 8 +#define xd_p_reg_fste_frac_step_size_19_16 0xA347 +#define reg_fste_frac_step_size_19_16_pos 0 +#define reg_fste_frac_step_size_19_16_len 4 +#define reg_fste_frac_step_size_19_16_lsb 16 +#define xd_p_reg_fste_rpd_dir_cnt_max 0xA347 +#define reg_fste_rpd_dir_cnt_max_pos 4 +#define reg_fste_rpd_dir_cnt_max_len 4 +#define reg_fste_rpd_dir_cnt_max_lsb 0 +#define xd_p_reg_fste_ehs 0xA348 +#define reg_fste_ehs_pos 0 +#define reg_fste_ehs_len 4 +#define reg_fste_ehs_lsb 0 +#define xd_p_reg_fste_frac_cost_cnt_max_3_0 0xA348 +#define reg_fste_frac_cost_cnt_max_3_0_pos 4 +#define reg_fste_frac_cost_cnt_max_3_0_len 4 +#define reg_fste_frac_cost_cnt_max_3_0_lsb 0 +#define xd_p_reg_fste_frac_cost_cnt_max_9_4 0xA349 +#define reg_fste_frac_cost_cnt_max_9_4_pos 0 +#define reg_fste_frac_cost_cnt_max_9_4_len 6 +#define reg_fste_frac_cost_cnt_max_9_4_lsb 4 +#define xd_p_reg_fste_w0_7_0 0xA34A +#define reg_fste_w0_7_0_pos 0 +#define reg_fste_w0_7_0_len 8 +#define reg_fste_w0_7_0_lsb 0 +#define xd_p_reg_fste_w0_11_8 0xA34B +#define reg_fste_w0_11_8_pos 0 +#define reg_fste_w0_11_8_len 4 +#define reg_fste_w0_11_8_lsb 8 +#define xd_p_reg_fste_w1_3_0 0xA34B +#define reg_fste_w1_3_0_pos 4 +#define reg_fste_w1_3_0_len 4 +#define reg_fste_w1_3_0_lsb 0 +#define xd_p_reg_fste_w1_11_4 0xA34C +#define reg_fste_w1_11_4_pos 0 +#define reg_fste_w1_11_4_len 8 +#define reg_fste_w1_11_4_lsb 4 +#define xd_p_reg_fste_w2_7_0 0xA34D +#define reg_fste_w2_7_0_pos 0 +#define reg_fste_w2_7_0_len 8 +#define reg_fste_w2_7_0_lsb 0 +#define xd_p_reg_fste_w2_11_8 0xA34E +#define reg_fste_w2_11_8_pos 0 +#define reg_fste_w2_11_8_len 4 +#define reg_fste_w2_11_8_lsb 8 +#define xd_p_reg_fste_w3_3_0 0xA34E +#define reg_fste_w3_3_0_pos 4 +#define reg_fste_w3_3_0_len 4 +#define reg_fste_w3_3_0_lsb 0 +#define xd_p_reg_fste_w3_11_4 0xA34F +#define reg_fste_w3_11_4_pos 0 +#define reg_fste_w3_11_4_len 8 +#define reg_fste_w3_11_4_lsb 4 +#define xd_p_reg_fste_w4_7_0 0xA350 +#define reg_fste_w4_7_0_pos 0 +#define reg_fste_w4_7_0_len 8 +#define reg_fste_w4_7_0_lsb 0 +#define xd_p_reg_fste_w4_11_8 0xA351 +#define reg_fste_w4_11_8_pos 0 +#define reg_fste_w4_11_8_len 4 +#define reg_fste_w4_11_8_lsb 8 +#define xd_p_reg_fste_w5_3_0 0xA351 +#define reg_fste_w5_3_0_pos 4 +#define reg_fste_w5_3_0_len 4 +#define reg_fste_w5_3_0_lsb 0 +#define xd_p_reg_fste_w5_11_4 0xA352 +#define reg_fste_w5_11_4_pos 0 +#define reg_fste_w5_11_4_len 8 +#define reg_fste_w5_11_4_lsb 4 +#define xd_p_reg_fste_w6_7_0 0xA353 +#define reg_fste_w6_7_0_pos 0 +#define reg_fste_w6_7_0_len 8 +#define reg_fste_w6_7_0_lsb 0 +#define xd_p_reg_fste_w6_11_8 0xA354 +#define reg_fste_w6_11_8_pos 0 +#define reg_fste_w6_11_8_len 4 +#define reg_fste_w6_11_8_lsb 8 +#define xd_p_reg_fste_w7_3_0 0xA354 +#define reg_fste_w7_3_0_pos 4 +#define reg_fste_w7_3_0_len 4 +#define reg_fste_w7_3_0_lsb 0 +#define xd_p_reg_fste_w7_11_4 0xA355 +#define reg_fste_w7_11_4_pos 0 +#define reg_fste_w7_11_4_len 8 +#define reg_fste_w7_11_4_lsb 4 +#define xd_p_reg_fste_w8_7_0 0xA356 +#define reg_fste_w8_7_0_pos 0 +#define reg_fste_w8_7_0_len 8 +#define reg_fste_w8_7_0_lsb 0 +#define xd_p_reg_fste_w8_11_8 0xA357 +#define reg_fste_w8_11_8_pos 0 +#define reg_fste_w8_11_8_len 4 +#define reg_fste_w8_11_8_lsb 8 +#define xd_p_reg_fste_w9_3_0 0xA357 +#define reg_fste_w9_3_0_pos 4 +#define reg_fste_w9_3_0_len 4 +#define reg_fste_w9_3_0_lsb 0 +#define xd_p_reg_fste_w9_11_4 0xA358 +#define reg_fste_w9_11_4_pos 0 +#define reg_fste_w9_11_4_len 8 +#define reg_fste_w9_11_4_lsb 4 +#define xd_p_reg_fste_wa_7_0 0xA359 +#define reg_fste_wa_7_0_pos 0 +#define reg_fste_wa_7_0_len 8 +#define reg_fste_wa_7_0_lsb 0 +#define xd_p_reg_fste_wa_11_8 0xA35A +#define reg_fste_wa_11_8_pos 0 +#define reg_fste_wa_11_8_len 4 +#define reg_fste_wa_11_8_lsb 8 +#define xd_p_reg_fste_wb_3_0 0xA35A +#define reg_fste_wb_3_0_pos 4 +#define reg_fste_wb_3_0_len 4 +#define reg_fste_wb_3_0_lsb 0 +#define xd_p_reg_fste_wb_11_4 0xA35B +#define reg_fste_wb_11_4_pos 0 +#define reg_fste_wb_11_4_len 8 +#define reg_fste_wb_11_4_lsb 4 +#define xd_r_fd_fste_i_adj 0xA35C +#define fd_fste_i_adj_pos 0 +#define fd_fste_i_adj_len 5 +#define fd_fste_i_adj_lsb 0 +#define xd_r_fd_fste_f_adj_7_0 0xA35D +#define fd_fste_f_adj_7_0_pos 0 +#define fd_fste_f_adj_7_0_len 8 +#define fd_fste_f_adj_7_0_lsb 0 +#define xd_r_fd_fste_f_adj_15_8 0xA35E +#define fd_fste_f_adj_15_8_pos 0 +#define fd_fste_f_adj_15_8_len 8 +#define fd_fste_f_adj_15_8_lsb 8 +#define xd_r_fd_fste_f_adj_19_16 0xA35F +#define fd_fste_f_adj_19_16_pos 0 +#define fd_fste_f_adj_19_16_len 4 +#define fd_fste_f_adj_19_16_lsb 16 +#define xd_p_reg_feq_Leak_Bypass 0xA366 +#define reg_feq_Leak_Bypass_pos 0 +#define reg_feq_Leak_Bypass_len 1 +#define reg_feq_Leak_Bypass_lsb 0 +#define xd_p_reg_feq_Leak_Mneg1 0xA366 +#define reg_feq_Leak_Mneg1_pos 1 +#define reg_feq_Leak_Mneg1_len 3 +#define reg_feq_Leak_Mneg1_lsb 0 +#define xd_p_reg_feq_Leak_B_ShiftQ 0xA366 +#define reg_feq_Leak_B_ShiftQ_pos 4 +#define reg_feq_Leak_B_ShiftQ_len 4 +#define reg_feq_Leak_B_ShiftQ_lsb 0 +#define xd_p_reg_feq_Leak_B_Float0 0xA367 +#define reg_feq_Leak_B_Float0_pos 0 +#define reg_feq_Leak_B_Float0_len 8 +#define reg_feq_Leak_B_Float0_lsb 0 +#define xd_p_reg_feq_Leak_B_Float1 0xA368 +#define reg_feq_Leak_B_Float1_pos 0 +#define reg_feq_Leak_B_Float1_len 8 +#define reg_feq_Leak_B_Float1_lsb 0 +#define xd_p_reg_feq_Leak_B_Float2 0xA369 +#define reg_feq_Leak_B_Float2_pos 0 +#define reg_feq_Leak_B_Float2_len 8 +#define reg_feq_Leak_B_Float2_lsb 0 +#define xd_p_reg_feq_Leak_B_Float3 0xA36A +#define reg_feq_Leak_B_Float3_pos 0 +#define reg_feq_Leak_B_Float3_len 8 +#define reg_feq_Leak_B_Float3_lsb 0 +#define xd_p_reg_feq_Leak_B_Float4 0xA36B +#define reg_feq_Leak_B_Float4_pos 0 +#define reg_feq_Leak_B_Float4_len 8 +#define reg_feq_Leak_B_Float4_lsb 0 +#define xd_p_reg_feq_Leak_B_Float5 0xA36C +#define reg_feq_Leak_B_Float5_pos 0 +#define reg_feq_Leak_B_Float5_len 8 +#define reg_feq_Leak_B_Float5_lsb 0 +#define xd_p_reg_feq_Leak_B_Float6 0xA36D +#define reg_feq_Leak_B_Float6_pos 0 +#define reg_feq_Leak_B_Float6_len 8 +#define reg_feq_Leak_B_Float6_lsb 0 +#define xd_p_reg_feq_Leak_B_Float7 0xA36E +#define reg_feq_Leak_B_Float7_pos 0 +#define reg_feq_Leak_B_Float7_len 8 +#define reg_feq_Leak_B_Float7_lsb 0 +#define xd_r_reg_feq_data_h2_7_0 0xA36F +#define reg_feq_data_h2_7_0_pos 0 +#define reg_feq_data_h2_7_0_len 8 +#define reg_feq_data_h2_7_0_lsb 0 +#define xd_r_reg_feq_data_h2_9_8 0xA370 +#define reg_feq_data_h2_9_8_pos 0 +#define reg_feq_data_h2_9_8_len 2 +#define reg_feq_data_h2_9_8_lsb 8 +#define xd_p_reg_feq_leak_use_slice_tps 0xA371 +#define reg_feq_leak_use_slice_tps_pos 0 +#define reg_feq_leak_use_slice_tps_len 1 +#define reg_feq_leak_use_slice_tps_lsb 0 +#define xd_p_reg_feq_read_update 0xA371 +#define reg_feq_read_update_pos 1 +#define reg_feq_read_update_len 1 +#define reg_feq_read_update_lsb 0 +#define xd_p_reg_feq_data_vld 0xA371 +#define reg_feq_data_vld_pos 2 +#define reg_feq_data_vld_len 1 +#define reg_feq_data_vld_lsb 0 +#define xd_p_reg_feq_tone_idx_4_0 0xA371 +#define reg_feq_tone_idx_4_0_pos 3 +#define reg_feq_tone_idx_4_0_len 5 +#define reg_feq_tone_idx_4_0_lsb 0 +#define xd_p_reg_feq_tone_idx_12_5 0xA372 +#define reg_feq_tone_idx_12_5_pos 0 +#define reg_feq_tone_idx_12_5_len 8 +#define reg_feq_tone_idx_12_5_lsb 5 +#define xd_r_reg_feq_data_re_7_0 0xA373 +#define reg_feq_data_re_7_0_pos 0 +#define reg_feq_data_re_7_0_len 8 +#define reg_feq_data_re_7_0_lsb 0 +#define xd_r_reg_feq_data_re_10_8 0xA374 +#define reg_feq_data_re_10_8_pos 0 +#define reg_feq_data_re_10_8_len 3 +#define reg_feq_data_re_10_8_lsb 8 +#define xd_r_reg_feq_data_im_7_0 0xA375 +#define reg_feq_data_im_7_0_pos 0 +#define reg_feq_data_im_7_0_len 8 +#define reg_feq_data_im_7_0_lsb 0 +#define xd_r_reg_feq_data_im_10_8 0xA376 +#define reg_feq_data_im_10_8_pos 0 +#define reg_feq_data_im_10_8_len 3 +#define reg_feq_data_im_10_8_lsb 8 +#define xd_r_reg_feq_y_re 0xA377 +#define reg_feq_y_re_pos 0 +#define reg_feq_y_re_len 8 +#define reg_feq_y_re_lsb 0 +#define xd_r_reg_feq_y_im 0xA378 +#define reg_feq_y_im_pos 0 +#define reg_feq_y_im_len 8 +#define reg_feq_y_im_lsb 0 +#define xd_r_reg_feq_h_re_7_0 0xA379 +#define reg_feq_h_re_7_0_pos 0 +#define reg_feq_h_re_7_0_len 8 +#define reg_feq_h_re_7_0_lsb 0 +#define xd_r_reg_feq_h_re_8 0xA37A +#define reg_feq_h_re_8_pos 0 +#define reg_feq_h_re_8_len 1 +#define reg_feq_h_re_8_lsb 0 +#define xd_r_reg_feq_h_im_7_0 0xA37B +#define reg_feq_h_im_7_0_pos 0 +#define reg_feq_h_im_7_0_len 8 +#define reg_feq_h_im_7_0_lsb 0 +#define xd_r_reg_feq_h_im_8 0xA37C +#define reg_feq_h_im_8_pos 0 +#define reg_feq_h_im_8_len 1 +#define reg_feq_h_im_8_lsb 0 +#define xd_p_fec_super_frm_unit_7_0 0xA380 +#define fec_super_frm_unit_7_0_pos 0 +#define fec_super_frm_unit_7_0_len 8 +#define fec_super_frm_unit_7_0_lsb 0 +#define xd_p_fec_super_frm_unit_15_8 0xA381 +#define fec_super_frm_unit_15_8_pos 0 +#define fec_super_frm_unit_15_8_len 8 +#define fec_super_frm_unit_15_8_lsb 8 +#define xd_r_fec_vtb_err_bit_cnt_7_0 0xA382 +#define fec_vtb_err_bit_cnt_7_0_pos 0 +#define fec_vtb_err_bit_cnt_7_0_len 8 +#define fec_vtb_err_bit_cnt_7_0_lsb 0 +#define xd_r_fec_vtb_err_bit_cnt_15_8 0xA383 +#define fec_vtb_err_bit_cnt_15_8_pos 0 +#define fec_vtb_err_bit_cnt_15_8_len 8 +#define fec_vtb_err_bit_cnt_15_8_lsb 8 +#define xd_r_fec_vtb_err_bit_cnt_23_16 0xA384 +#define fec_vtb_err_bit_cnt_23_16_pos 0 +#define fec_vtb_err_bit_cnt_23_16_len 8 +#define fec_vtb_err_bit_cnt_23_16_lsb 16 +#define xd_p_fec_rsd_packet_unit_7_0 0xA385 +#define fec_rsd_packet_unit_7_0_pos 0 +#define fec_rsd_packet_unit_7_0_len 8 +#define fec_rsd_packet_unit_7_0_lsb 0 +#define xd_p_fec_rsd_packet_unit_15_8 0xA386 +#define fec_rsd_packet_unit_15_8_pos 0 +#define fec_rsd_packet_unit_15_8_len 8 +#define fec_rsd_packet_unit_15_8_lsb 8 +#define xd_r_fec_rsd_bit_err_cnt_7_0 0xA387 +#define fec_rsd_bit_err_cnt_7_0_pos 0 +#define fec_rsd_bit_err_cnt_7_0_len 8 +#define fec_rsd_bit_err_cnt_7_0_lsb 0 +#define xd_r_fec_rsd_bit_err_cnt_15_8 0xA388 +#define fec_rsd_bit_err_cnt_15_8_pos 0 +#define fec_rsd_bit_err_cnt_15_8_len 8 +#define fec_rsd_bit_err_cnt_15_8_lsb 8 +#define xd_r_fec_rsd_bit_err_cnt_23_16 0xA389 +#define fec_rsd_bit_err_cnt_23_16_pos 0 +#define fec_rsd_bit_err_cnt_23_16_len 8 +#define fec_rsd_bit_err_cnt_23_16_lsb 16 +#define xd_r_fec_rsd_abort_packet_cnt_7_0 0xA38A +#define fec_rsd_abort_packet_cnt_7_0_pos 0 +#define fec_rsd_abort_packet_cnt_7_0_len 8 +#define fec_rsd_abort_packet_cnt_7_0_lsb 0 +#define xd_r_fec_rsd_abort_packet_cnt_15_8 0xA38B +#define fec_rsd_abort_packet_cnt_15_8_pos 0 +#define fec_rsd_abort_packet_cnt_15_8_len 8 +#define fec_rsd_abort_packet_cnt_15_8_lsb 8 +#define xd_p_fec_RSD_PKT_NUM_PER_UNIT_7_0 0xA38C +#define fec_RSD_PKT_NUM_PER_UNIT_7_0_pos 0 +#define fec_RSD_PKT_NUM_PER_UNIT_7_0_len 8 +#define fec_RSD_PKT_NUM_PER_UNIT_7_0_lsb 0 +#define xd_p_fec_RSD_PKT_NUM_PER_UNIT_15_8 0xA38D +#define fec_RSD_PKT_NUM_PER_UNIT_15_8_pos 0 +#define fec_RSD_PKT_NUM_PER_UNIT_15_8_len 8 +#define fec_RSD_PKT_NUM_PER_UNIT_15_8_lsb 8 +#define xd_p_fec_RS_TH_1_7_0 0xA38E +#define fec_RS_TH_1_7_0_pos 0 +#define fec_RS_TH_1_7_0_len 8 +#define fec_RS_TH_1_7_0_lsb 0 +#define xd_p_fec_RS_TH_1_15_8 0xA38F +#define fec_RS_TH_1_15_8_pos 0 +#define fec_RS_TH_1_15_8_len 8 +#define fec_RS_TH_1_15_8_lsb 8 +#define xd_p_fec_RS_TH_2 0xA390 +#define fec_RS_TH_2_pos 0 +#define fec_RS_TH_2_len 8 +#define fec_RS_TH_2_lsb 0 +#define xd_p_fec_mon_en 0xA391 +#define fec_mon_en_pos 0 +#define fec_mon_en_len 1 +#define fec_mon_en_lsb 0 +#define xd_p_reg_b8to47 0xA391 +#define reg_b8to47_pos 1 +#define reg_b8to47_len 1 +#define reg_b8to47_lsb 0 +#define xd_p_reg_rsd_sync_rep 0xA391 +#define reg_rsd_sync_rep_pos 2 +#define reg_rsd_sync_rep_len 1 +#define reg_rsd_sync_rep_lsb 0 +#define xd_p_fec_rsd_retrain_rst 0xA391 +#define fec_rsd_retrain_rst_pos 3 +#define fec_rsd_retrain_rst_len 1 +#define fec_rsd_retrain_rst_lsb 0 +#define xd_r_fec_rsd_ber_rdy 0xA391 +#define fec_rsd_ber_rdy_pos 4 +#define fec_rsd_ber_rdy_len 1 +#define fec_rsd_ber_rdy_lsb 0 +#define xd_p_fec_rsd_ber_rst 0xA391 +#define fec_rsd_ber_rst_pos 5 +#define fec_rsd_ber_rst_len 1 +#define fec_rsd_ber_rst_lsb 0 +#define xd_r_fec_vtb_ber_rdy 0xA391 +#define fec_vtb_ber_rdy_pos 6 +#define fec_vtb_ber_rdy_len 1 +#define fec_vtb_ber_rdy_lsb 0 +#define xd_p_fec_vtb_ber_rst 0xA391 +#define fec_vtb_ber_rst_pos 7 +#define fec_vtb_ber_rst_len 1 +#define fec_vtb_ber_rst_lsb 0 +#define xd_p_reg_vtb_clk40en 0xA392 +#define reg_vtb_clk40en_pos 0 +#define reg_vtb_clk40en_len 1 +#define reg_vtb_clk40en_lsb 0 +#define xd_p_fec_vtb_rsd_mon_en 0xA392 +#define fec_vtb_rsd_mon_en_pos 1 +#define fec_vtb_rsd_mon_en_len 1 +#define fec_vtb_rsd_mon_en_lsb 0 +#define xd_p_reg_fec_data_en 0xA392 +#define reg_fec_data_en_pos 2 +#define reg_fec_data_en_len 1 +#define reg_fec_data_en_lsb 0 +#define xd_p_fec_dummy_reg_2 0xA392 +#define fec_dummy_reg_2_pos 3 +#define fec_dummy_reg_2_len 3 +#define fec_dummy_reg_2_lsb 0 +#define xd_p_reg_sync_chk 0xA392 +#define reg_sync_chk_pos 6 +#define reg_sync_chk_len 1 +#define reg_sync_chk_lsb 0 +#define xd_p_fec_rsd_bypass 0xA392 +#define fec_rsd_bypass_pos 7 +#define fec_rsd_bypass_len 1 +#define fec_rsd_bypass_lsb 0 +#define xd_p_fec_sw_rst 0xA393 +#define fec_sw_rst_pos 0 +#define fec_sw_rst_len 1 +#define fec_sw_rst_lsb 0 +#define xd_r_fec_vtb_pm_crc 0xA394 +#define fec_vtb_pm_crc_pos 0 +#define fec_vtb_pm_crc_len 8 +#define fec_vtb_pm_crc_lsb 0 +#define xd_r_fec_vtb_tb_7_crc 0xA395 +#define fec_vtb_tb_7_crc_pos 0 +#define fec_vtb_tb_7_crc_len 8 +#define fec_vtb_tb_7_crc_lsb 0 +#define xd_r_fec_vtb_tb_6_crc 0xA396 +#define fec_vtb_tb_6_crc_pos 0 +#define fec_vtb_tb_6_crc_len 8 +#define fec_vtb_tb_6_crc_lsb 0 +#define xd_r_fec_vtb_tb_5_crc 0xA397 +#define fec_vtb_tb_5_crc_pos 0 +#define fec_vtb_tb_5_crc_len 8 +#define fec_vtb_tb_5_crc_lsb 0 +#define xd_r_fec_vtb_tb_4_crc 0xA398 +#define fec_vtb_tb_4_crc_pos 0 +#define fec_vtb_tb_4_crc_len 8 +#define fec_vtb_tb_4_crc_lsb 0 +#define xd_r_fec_vtb_tb_3_crc 0xA399 +#define fec_vtb_tb_3_crc_pos 0 +#define fec_vtb_tb_3_crc_len 8 +#define fec_vtb_tb_3_crc_lsb 0 +#define xd_r_fec_vtb_tb_2_crc 0xA39A +#define fec_vtb_tb_2_crc_pos 0 +#define fec_vtb_tb_2_crc_len 8 +#define fec_vtb_tb_2_crc_lsb 0 +#define xd_r_fec_vtb_tb_1_crc 0xA39B +#define fec_vtb_tb_1_crc_pos 0 +#define fec_vtb_tb_1_crc_len 8 +#define fec_vtb_tb_1_crc_lsb 0 +#define xd_r_fec_vtb_tb_0_crc 0xA39C +#define fec_vtb_tb_0_crc_pos 0 +#define fec_vtb_tb_0_crc_len 8 +#define fec_vtb_tb_0_crc_lsb 0 +#define xd_r_fec_rsd_bank0_crc 0xA39D +#define fec_rsd_bank0_crc_pos 0 +#define fec_rsd_bank0_crc_len 8 +#define fec_rsd_bank0_crc_lsb 0 +#define xd_r_fec_rsd_bank1_crc 0xA39E +#define fec_rsd_bank1_crc_pos 0 +#define fec_rsd_bank1_crc_len 8 +#define fec_rsd_bank1_crc_lsb 0 +#define xd_r_fec_idi_vtb_crc 0xA39F +#define fec_idi_vtb_crc_pos 0 +#define fec_idi_vtb_crc_len 8 +#define fec_idi_vtb_crc_lsb 0 +#define xd_g_reg_tpsd_txmod 0xA3C0 +#define reg_tpsd_txmod_pos 0 +#define reg_tpsd_txmod_len 2 +#define reg_tpsd_txmod_lsb 0 +#define xd_g_reg_tpsd_gi 0xA3C0 +#define reg_tpsd_gi_pos 2 +#define reg_tpsd_gi_len 2 +#define reg_tpsd_gi_lsb 0 +#define xd_g_reg_tpsd_hier 0xA3C0 +#define reg_tpsd_hier_pos 4 +#define reg_tpsd_hier_len 3 +#define reg_tpsd_hier_lsb 0 +#define xd_g_reg_bw 0xA3C1 +#define reg_bw_pos 2 +#define reg_bw_len 2 +#define reg_bw_lsb 0 +#define xd_g_reg_dec_pri 0xA3C1 +#define reg_dec_pri_pos 4 +#define reg_dec_pri_len 1 +#define reg_dec_pri_lsb 0 +#define xd_g_reg_tpsd_const 0xA3C1 +#define reg_tpsd_const_pos 6 +#define reg_tpsd_const_len 2 +#define reg_tpsd_const_lsb 0 +#define xd_g_reg_tpsd_hpcr 0xA3C2 +#define reg_tpsd_hpcr_pos 0 +#define reg_tpsd_hpcr_len 3 +#define reg_tpsd_hpcr_lsb 0 +#define xd_g_reg_tpsd_lpcr 0xA3C2 +#define reg_tpsd_lpcr_pos 3 +#define reg_tpsd_lpcr_len 3 +#define reg_tpsd_lpcr_lsb 0 +#define xd_g_reg_ofsm_clk 0xA3D0 +#define reg_ofsm_clk_pos 0 +#define reg_ofsm_clk_len 3 +#define reg_ofsm_clk_lsb 0 +#define xd_g_reg_fclk_cfg 0xA3D1 +#define reg_fclk_cfg_pos 0 +#define reg_fclk_cfg_len 1 +#define reg_fclk_cfg_lsb 0 +#define xd_g_reg_fclk_idi 0xA3D1 +#define reg_fclk_idi_pos 1 +#define reg_fclk_idi_len 1 +#define reg_fclk_idi_lsb 0 +#define xd_g_reg_fclk_odi 0xA3D1 +#define reg_fclk_odi_pos 2 +#define reg_fclk_odi_len 1 +#define reg_fclk_odi_lsb 0 +#define xd_g_reg_fclk_rsd 0xA3D1 +#define reg_fclk_rsd_pos 3 +#define reg_fclk_rsd_len 1 +#define reg_fclk_rsd_lsb 0 +#define xd_g_reg_fclk_vtb 0xA3D1 +#define reg_fclk_vtb_pos 4 +#define reg_fclk_vtb_len 1 +#define reg_fclk_vtb_lsb 0 +#define xd_g_reg_fclk_cste 0xA3D1 +#define reg_fclk_cste_pos 5 +#define reg_fclk_cste_len 1 +#define reg_fclk_cste_lsb 0 +#define xd_g_reg_fclk_mp2if 0xA3D1 +#define reg_fclk_mp2if_pos 6 +#define reg_fclk_mp2if_len 1 +#define reg_fclk_mp2if_lsb 0 +#define xd_I2C_i2c_m_slave_addr 0xA400 +#define i2c_m_slave_addr_pos 0 +#define i2c_m_slave_addr_len 8 +#define i2c_m_slave_addr_lsb 0 +#define xd_I2C_i2c_m_data1 0xA401 +#define i2c_m_data1_pos 0 +#define i2c_m_data1_len 8 +#define i2c_m_data1_lsb 0 +#define xd_I2C_i2c_m_data2 0xA402 +#define i2c_m_data2_pos 0 +#define i2c_m_data2_len 8 +#define i2c_m_data2_lsb 0 +#define xd_I2C_i2c_m_data3 0xA403 +#define i2c_m_data3_pos 0 +#define i2c_m_data3_len 8 +#define i2c_m_data3_lsb 0 +#define xd_I2C_i2c_m_data4 0xA404 +#define i2c_m_data4_pos 0 +#define i2c_m_data4_len 8 +#define i2c_m_data4_lsb 0 +#define xd_I2C_i2c_m_data5 0xA405 +#define i2c_m_data5_pos 0 +#define i2c_m_data5_len 8 +#define i2c_m_data5_lsb 0 +#define xd_I2C_i2c_m_data6 0xA406 +#define i2c_m_data6_pos 0 +#define i2c_m_data6_len 8 +#define i2c_m_data6_lsb 0 +#define xd_I2C_i2c_m_data7 0xA407 +#define i2c_m_data7_pos 0 +#define i2c_m_data7_len 8 +#define i2c_m_data7_lsb 0 +#define xd_I2C_i2c_m_data8 0xA408 +#define i2c_m_data8_pos 0 +#define i2c_m_data8_len 8 +#define i2c_m_data8_lsb 0 +#define xd_I2C_i2c_m_data9 0xA409 +#define i2c_m_data9_pos 0 +#define i2c_m_data9_len 8 +#define i2c_m_data9_lsb 0 +#define xd_I2C_i2c_m_data10 0xA40A +#define i2c_m_data10_pos 0 +#define i2c_m_data10_len 8 +#define i2c_m_data10_lsb 0 +#define xd_I2C_i2c_m_data11 0xA40B +#define i2c_m_data11_pos 0 +#define i2c_m_data11_len 8 +#define i2c_m_data11_lsb 0 +#define xd_I2C_i2c_m_cmd_rw 0xA40C +#define i2c_m_cmd_rw_pos 0 +#define i2c_m_cmd_rw_len 1 +#define i2c_m_cmd_rw_lsb 0 +#define xd_I2C_i2c_m_cmd_rwlen 0xA40C +#define i2c_m_cmd_rwlen_pos 3 +#define i2c_m_cmd_rwlen_len 4 +#define i2c_m_cmd_rwlen_lsb 0 +#define xd_I2C_i2c_m_status_cmd_exe 0xA40D +#define i2c_m_status_cmd_exe_pos 0 +#define i2c_m_status_cmd_exe_len 1 +#define i2c_m_status_cmd_exe_lsb 0 +#define xd_I2C_i2c_m_status_wdat_done 0xA40D +#define i2c_m_status_wdat_done_pos 1 +#define i2c_m_status_wdat_done_len 1 +#define i2c_m_status_wdat_done_lsb 0 +#define xd_I2C_i2c_m_status_wdat_fail 0xA40D +#define i2c_m_status_wdat_fail_pos 2 +#define i2c_m_status_wdat_fail_len 1 +#define i2c_m_status_wdat_fail_lsb 0 +#define xd_I2C_i2c_m_period 0xA40E +#define i2c_m_period_pos 0 +#define i2c_m_period_len 8 +#define i2c_m_period_lsb 0 +#define xd_I2C_i2c_m_reg_msb_lsb 0xA40F +#define i2c_m_reg_msb_lsb_pos 0 +#define i2c_m_reg_msb_lsb_len 1 +#define i2c_m_reg_msb_lsb_lsb 0 +#define xd_I2C_reg_ofdm_rst 0xA40F +#define reg_ofdm_rst_pos 1 +#define reg_ofdm_rst_len 1 +#define reg_ofdm_rst_lsb 0 +#define xd_I2C_reg_sample_period_on_tuner 0xA40F +#define reg_sample_period_on_tuner_pos 2 +#define reg_sample_period_on_tuner_len 1 +#define reg_sample_period_on_tuner_lsb 0 +#define xd_I2C_reg_rst_i2c 0xA40F +#define reg_rst_i2c_pos 3 +#define reg_rst_i2c_len 1 +#define reg_rst_i2c_lsb 0 +#define xd_I2C_reg_ofdm_rst_en 0xA40F +#define reg_ofdm_rst_en_pos 4 +#define reg_ofdm_rst_en_len 1 +#define reg_ofdm_rst_en_lsb 0 +#define xd_I2C_reg_tuner_sda_sync_on 0xA40F +#define reg_tuner_sda_sync_on_pos 5 +#define reg_tuner_sda_sync_on_len 1 +#define reg_tuner_sda_sync_on_lsb 0 +#define xd_p_mp2if_data_access_disable_ofsm 0xA500 +#define mp2if_data_access_disable_ofsm_pos 0 +#define mp2if_data_access_disable_ofsm_len 1 +#define mp2if_data_access_disable_ofsm_lsb 0 +#define xd_p_reg_mp2_sw_rst_ofsm 0xA500 +#define reg_mp2_sw_rst_ofsm_pos 1 +#define reg_mp2_sw_rst_ofsm_len 1 +#define reg_mp2_sw_rst_ofsm_lsb 0 +#define xd_p_reg_mp2if_clk_en_ofsm 0xA500 +#define reg_mp2if_clk_en_ofsm_pos 2 +#define reg_mp2if_clk_en_ofsm_len 1 +#define reg_mp2if_clk_en_ofsm_lsb 0 +#define xd_r_mp2if_sync_byte_locked 0xA500 +#define mp2if_sync_byte_locked_pos 3 +#define mp2if_sync_byte_locked_len 1 +#define mp2if_sync_byte_locked_lsb 0 +#define xd_r_mp2if_ts_not_188 0xA500 +#define mp2if_ts_not_188_pos 4 +#define mp2if_ts_not_188_len 1 +#define mp2if_ts_not_188_lsb 0 +#define xd_r_mp2if_psb_empty 0xA500 +#define mp2if_psb_empty_pos 5 +#define mp2if_psb_empty_len 1 +#define mp2if_psb_empty_lsb 0 +#define xd_r_mp2if_psb_overflow 0xA500 +#define mp2if_psb_overflow_pos 6 +#define mp2if_psb_overflow_len 1 +#define mp2if_psb_overflow_lsb 0 +#define xd_p_mp2if_keep_sf_sync_byte_ofsm 0xA500 +#define mp2if_keep_sf_sync_byte_ofsm_pos 7 +#define mp2if_keep_sf_sync_byte_ofsm_len 1 +#define mp2if_keep_sf_sync_byte_ofsm_lsb 0 +#define xd_r_mp2if_psb_mp2if_num_pkt 0xA501 +#define mp2if_psb_mp2if_num_pkt_pos 0 +#define mp2if_psb_mp2if_num_pkt_len 6 +#define mp2if_psb_mp2if_num_pkt_lsb 0 +#define xd_p_reg_mpeg_full_speed_ofsm 0xA501 +#define reg_mpeg_full_speed_ofsm_pos 6 +#define reg_mpeg_full_speed_ofsm_len 1 +#define reg_mpeg_full_speed_ofsm_lsb 0 +#define xd_p_mp2if_mpeg_ser_mode_ofsm 0xA501 +#define mp2if_mpeg_ser_mode_ofsm_pos 7 +#define mp2if_mpeg_ser_mode_ofsm_len 1 +#define mp2if_mpeg_ser_mode_ofsm_lsb 0 +#define xd_p_reg_sw_mon51 0xA600 +#define reg_sw_mon51_pos 0 +#define reg_sw_mon51_len 8 +#define reg_sw_mon51_lsb 0 +#define xd_p_reg_top_pcsel 0xA601 +#define reg_top_pcsel_pos 0 +#define reg_top_pcsel_len 1 +#define reg_top_pcsel_lsb 0 +#define xd_p_reg_top_rs232 0xA601 +#define reg_top_rs232_pos 1 +#define reg_top_rs232_len 1 +#define reg_top_rs232_lsb 0 +#define xd_p_reg_top_pcout 0xA601 +#define reg_top_pcout_pos 2 +#define reg_top_pcout_len 1 +#define reg_top_pcout_lsb 0 +#define xd_p_reg_top_debug 0xA601 +#define reg_top_debug_pos 3 +#define reg_top_debug_len 1 +#define reg_top_debug_lsb 0 +#define xd_p_reg_top_adcdly 0xA601 +#define reg_top_adcdly_pos 4 +#define reg_top_adcdly_len 2 +#define reg_top_adcdly_lsb 0 +#define xd_p_reg_top_pwrdw 0xA601 +#define reg_top_pwrdw_pos 6 +#define reg_top_pwrdw_len 1 +#define reg_top_pwrdw_lsb 0 +#define xd_p_reg_top_pwrdw_inv 0xA601 +#define reg_top_pwrdw_inv_pos 7 +#define reg_top_pwrdw_inv_len 1 +#define reg_top_pwrdw_inv_lsb 0 +#define xd_p_reg_top_int_inv 0xA602 +#define reg_top_int_inv_pos 0 +#define reg_top_int_inv_len 1 +#define reg_top_int_inv_lsb 0 +#define xd_p_reg_top_dio_sel 0xA602 +#define reg_top_dio_sel_pos 1 +#define reg_top_dio_sel_len 1 +#define reg_top_dio_sel_lsb 0 +#define xd_p_reg_top_gpioon0 0xA603 +#define reg_top_gpioon0_pos 0 +#define reg_top_gpioon0_len 1 +#define reg_top_gpioon0_lsb 0 +#define xd_p_reg_top_gpioon1 0xA603 +#define reg_top_gpioon1_pos 1 +#define reg_top_gpioon1_len 1 +#define reg_top_gpioon1_lsb 0 +#define xd_p_reg_top_gpioon2 0xA603 +#define reg_top_gpioon2_pos 2 +#define reg_top_gpioon2_len 1 +#define reg_top_gpioon2_lsb 0 +#define xd_p_reg_top_gpioon3 0xA603 +#define reg_top_gpioon3_pos 3 +#define reg_top_gpioon3_len 1 +#define reg_top_gpioon3_lsb 0 +#define xd_p_reg_top_lockon1 0xA603 +#define reg_top_lockon1_pos 4 +#define reg_top_lockon1_len 1 +#define reg_top_lockon1_lsb 0 +#define xd_p_reg_top_lockon2 0xA603 +#define reg_top_lockon2_pos 5 +#define reg_top_lockon2_len 1 +#define reg_top_lockon2_lsb 0 +#define xd_p_reg_top_gpioo0 0xA604 +#define reg_top_gpioo0_pos 0 +#define reg_top_gpioo0_len 1 +#define reg_top_gpioo0_lsb 0 +#define xd_p_reg_top_gpioo1 0xA604 +#define reg_top_gpioo1_pos 1 +#define reg_top_gpioo1_len 1 +#define reg_top_gpioo1_lsb 0 +#define xd_p_reg_top_gpioo2 0xA604 +#define reg_top_gpioo2_pos 2 +#define reg_top_gpioo2_len 1 +#define reg_top_gpioo2_lsb 0 +#define xd_p_reg_top_gpioo3 0xA604 +#define reg_top_gpioo3_pos 3 +#define reg_top_gpioo3_len 1 +#define reg_top_gpioo3_lsb 0 +#define xd_p_reg_top_lock1 0xA604 +#define reg_top_lock1_pos 4 +#define reg_top_lock1_len 1 +#define reg_top_lock1_lsb 0 +#define xd_p_reg_top_lock2 0xA604 +#define reg_top_lock2_pos 5 +#define reg_top_lock2_len 1 +#define reg_top_lock2_lsb 0 +#define xd_p_reg_top_gpioen0 0xA605 +#define reg_top_gpioen0_pos 0 +#define reg_top_gpioen0_len 1 +#define reg_top_gpioen0_lsb 0 +#define xd_p_reg_top_gpioen1 0xA605 +#define reg_top_gpioen1_pos 1 +#define reg_top_gpioen1_len 1 +#define reg_top_gpioen1_lsb 0 +#define xd_p_reg_top_gpioen2 0xA605 +#define reg_top_gpioen2_pos 2 +#define reg_top_gpioen2_len 1 +#define reg_top_gpioen2_lsb 0 +#define xd_p_reg_top_gpioen3 0xA605 +#define reg_top_gpioen3_pos 3 +#define reg_top_gpioen3_len 1 +#define reg_top_gpioen3_lsb 0 +#define xd_p_reg_top_locken1 0xA605 +#define reg_top_locken1_pos 4 +#define reg_top_locken1_len 1 +#define reg_top_locken1_lsb 0 +#define xd_p_reg_top_locken2 0xA605 +#define reg_top_locken2_pos 5 +#define reg_top_locken2_len 1 +#define reg_top_locken2_lsb 0 +#define xd_r_reg_top_gpioi0 0xA606 +#define reg_top_gpioi0_pos 0 +#define reg_top_gpioi0_len 1 +#define reg_top_gpioi0_lsb 0 +#define xd_r_reg_top_gpioi1 0xA606 +#define reg_top_gpioi1_pos 1 +#define reg_top_gpioi1_len 1 +#define reg_top_gpioi1_lsb 0 +#define xd_r_reg_top_gpioi2 0xA606 +#define reg_top_gpioi2_pos 2 +#define reg_top_gpioi2_len 1 +#define reg_top_gpioi2_lsb 0 +#define xd_r_reg_top_gpioi3 0xA606 +#define reg_top_gpioi3_pos 3 +#define reg_top_gpioi3_len 1 +#define reg_top_gpioi3_lsb 0 +#define xd_r_reg_top_locki1 0xA606 +#define reg_top_locki1_pos 4 +#define reg_top_locki1_len 1 +#define reg_top_locki1_lsb 0 +#define xd_r_reg_top_locki2 0xA606 +#define reg_top_locki2_pos 5 +#define reg_top_locki2_len 1 +#define reg_top_locki2_lsb 0 +#define xd_p_reg_dummy_7_0 0xA608 +#define reg_dummy_7_0_pos 0 +#define reg_dummy_7_0_len 8 +#define reg_dummy_7_0_lsb 0 +#define xd_p_reg_dummy_15_8 0xA609 +#define reg_dummy_15_8_pos 0 +#define reg_dummy_15_8_len 8 +#define reg_dummy_15_8_lsb 8 +#define xd_p_reg_dummy_23_16 0xA60A +#define reg_dummy_23_16_pos 0 +#define reg_dummy_23_16_len 8 +#define reg_dummy_23_16_lsb 16 +#define xd_p_reg_dummy_31_24 0xA60B +#define reg_dummy_31_24_pos 0 +#define reg_dummy_31_24_len 8 +#define reg_dummy_31_24_lsb 24 +#define xd_p_reg_dummy_39_32 0xA60C +#define reg_dummy_39_32_pos 0 +#define reg_dummy_39_32_len 8 +#define reg_dummy_39_32_lsb 32 +#define xd_p_reg_dummy_47_40 0xA60D +#define reg_dummy_47_40_pos 0 +#define reg_dummy_47_40_len 8 +#define reg_dummy_47_40_lsb 40 +#define xd_p_reg_dummy_55_48 0xA60E +#define reg_dummy_55_48_pos 0 +#define reg_dummy_55_48_len 8 +#define reg_dummy_55_48_lsb 48 +#define xd_p_reg_dummy_63_56 0xA60F +#define reg_dummy_63_56_pos 0 +#define reg_dummy_63_56_len 8 +#define reg_dummy_63_56_lsb 56 +#define xd_p_reg_dummy_71_64 0xA610 +#define reg_dummy_71_64_pos 0 +#define reg_dummy_71_64_len 8 +#define reg_dummy_71_64_lsb 64 +#define xd_p_reg_dummy_79_72 0xA611 +#define reg_dummy_79_72_pos 0 +#define reg_dummy_79_72_len 8 +#define reg_dummy_79_72_lsb 72 +#define xd_p_reg_dummy_87_80 0xA612 +#define reg_dummy_87_80_pos 0 +#define reg_dummy_87_80_len 8 +#define reg_dummy_87_80_lsb 80 +#define xd_p_reg_dummy_95_88 0xA613 +#define reg_dummy_95_88_pos 0 +#define reg_dummy_95_88_len 8 +#define reg_dummy_95_88_lsb 88 +#define xd_p_reg_dummy_103_96 0xA614 +#define reg_dummy_103_96_pos 0 +#define reg_dummy_103_96_len 8 +#define reg_dummy_103_96_lsb 96 + +#define xd_p_reg_unplug_flag 0xA615 +#define reg_unplug_flag_pos 0 +#define reg_unplug_flag_len 1 +#define reg_unplug_flag_lsb 104 + +#define xd_p_reg_api_dca_stes_request 0xA615 +#define reg_api_dca_stes_request_pos 1 +#define reg_api_dca_stes_request_len 1 +#define reg_api_dca_stes_request_lsb 0 + +#define xd_p_reg_back_to_dca_flag 0xA615 +#define reg_back_to_dca_flag_pos 2 +#define reg_back_to_dca_flag_len 1 +#define reg_back_to_dca_flag_lsb 106 + +#define xd_p_reg_api_retrain_request 0xA615 +#define reg_api_retrain_request_pos 3 +#define reg_api_retrain_request_len 1 +#define reg_api_retrain_request_lsb 0 + +#define xd_p_reg_Dyn_Top_Try_flag 0xA615 +#define reg_Dyn_Top_Try_flag_pos 3 +#define reg_Dyn_Top_Try_flag_len 1 +#define reg_Dyn_Top_Try_flag_lsb 107 + +#define xd_p_reg_API_retrain_freeze_flag 0xA615 +#define reg_API_retrain_freeze_flag_pos 4 +#define reg_API_retrain_freeze_flag_len 1 +#define reg_API_retrain_freeze_flag_lsb 108 + +#define xd_p_reg_dummy_111_104 0xA615 +#define reg_dummy_111_104_pos 0 +#define reg_dummy_111_104_len 8 +#define reg_dummy_111_104_lsb 104 +#define xd_p_reg_dummy_119_112 0xA616 +#define reg_dummy_119_112_pos 0 +#define reg_dummy_119_112_len 8 +#define reg_dummy_119_112_lsb 112 +#define xd_p_reg_dummy_127_120 0xA617 +#define reg_dummy_127_120_pos 0 +#define reg_dummy_127_120_len 8 +#define reg_dummy_127_120_lsb 120 +#define xd_p_reg_dummy_135_128 0xA618 +#define reg_dummy_135_128_pos 0 +#define reg_dummy_135_128_len 8 +#define reg_dummy_135_128_lsb 128 + +#define xd_p_reg_dummy_143_136 0xA619 +#define reg_dummy_143_136_pos 0 +#define reg_dummy_143_136_len 8 +#define reg_dummy_143_136_lsb 136 + +#define xd_p_reg_CCIR_dis 0xA619 +#define reg_CCIR_dis_pos 0 +#define reg_CCIR_dis_len 1 +#define reg_CCIR_dis_lsb 0 + +#define xd_p_reg_dummy_151_144 0xA61A +#define reg_dummy_151_144_pos 0 +#define reg_dummy_151_144_len 8 +#define reg_dummy_151_144_lsb 144 + +#define xd_p_reg_dummy_159_152 0xA61B +#define reg_dummy_159_152_pos 0 +#define reg_dummy_159_152_len 8 +#define reg_dummy_159_152_lsb 152 + +#define xd_p_reg_dummy_167_160 0xA61C +#define reg_dummy_167_160_pos 0 +#define reg_dummy_167_160_len 8 +#define reg_dummy_167_160_lsb 160 + +#define xd_p_reg_dummy_175_168 0xA61D +#define reg_dummy_175_168_pos 0 +#define reg_dummy_175_168_len 8 +#define reg_dummy_175_168_lsb 168 + +#define xd_p_reg_dummy_183_176 0xA61E +#define reg_dummy_183_176_pos 0 +#define reg_dummy_183_176_len 8 +#define reg_dummy_183_176_lsb 176 + +#define xd_p_reg_ofsm_read_rbc_en 0xA61E +#define reg_ofsm_read_rbc_en_pos 2 +#define reg_ofsm_read_rbc_en_len 1 +#define reg_ofsm_read_rbc_en_lsb 0 + +#define xd_p_reg_ce_filter_selection_dis 0xA61E +#define reg_ce_filter_selection_dis_pos 1 +#define reg_ce_filter_selection_dis_len 1 +#define reg_ce_filter_selection_dis_lsb 0 + +#define xd_p_reg_OFSM_version_control_7_0 0xA611 +#define reg_OFSM_version_control_7_0_pos 0 +#define reg_OFSM_version_control_7_0_len 8 +#define reg_OFSM_version_control_7_0_lsb 0 + +#define xd_p_reg_OFSM_version_control_15_8 0xA61F +#define reg_OFSM_version_control_15_8_pos 0 +#define reg_OFSM_version_control_15_8_len 8 +#define reg_OFSM_version_control_15_8_lsb 0 + +#define xd_p_reg_OFSM_version_control_23_16 0xA620 +#define reg_OFSM_version_control_23_16_pos 0 +#define reg_OFSM_version_control_23_16_len 8 +#define reg_OFSM_version_control_23_16_lsb 0 + +#define xd_p_reg_dummy_191_184 0xA61F +#define reg_dummy_191_184_pos 0 +#define reg_dummy_191_184_len 8 +#define reg_dummy_191_184_lsb 184 + +#define xd_p_reg_dummy_199_192 0xA620 +#define reg_dummy_199_192_pos 0 +#define reg_dummy_199_192_len 8 +#define reg_dummy_199_192_lsb 192 + +#define xd_p_reg_ce_en 0xABC0 +#define reg_ce_en_pos 0 +#define reg_ce_en_len 1 +#define reg_ce_en_lsb 0 +#define xd_p_reg_ce_fctrl_en 0xABC0 +#define reg_ce_fctrl_en_pos 1 +#define reg_ce_fctrl_en_len 1 +#define reg_ce_fctrl_en_lsb 0 +#define xd_p_reg_ce_fste_tdi 0xABC0 +#define reg_ce_fste_tdi_pos 2 +#define reg_ce_fste_tdi_len 1 +#define reg_ce_fste_tdi_lsb 0 +#define xd_p_reg_ce_dynamic 0xABC0 +#define reg_ce_dynamic_pos 3 +#define reg_ce_dynamic_len 1 +#define reg_ce_dynamic_lsb 0 +#define xd_p_reg_ce_conf 0xABC0 +#define reg_ce_conf_pos 4 +#define reg_ce_conf_len 2 +#define reg_ce_conf_lsb 0 +#define xd_p_reg_ce_dyn12 0xABC0 +#define reg_ce_dyn12_pos 6 +#define reg_ce_dyn12_len 1 +#define reg_ce_dyn12_lsb 0 +#define xd_p_reg_ce_derot_en 0xABC0 +#define reg_ce_derot_en_pos 7 +#define reg_ce_derot_en_len 1 +#define reg_ce_derot_en_lsb 0 +#define xd_p_reg_ce_dynamic_th_7_0 0xABC1 +#define reg_ce_dynamic_th_7_0_pos 0 +#define reg_ce_dynamic_th_7_0_len 8 +#define reg_ce_dynamic_th_7_0_lsb 0 +#define xd_p_reg_ce_dynamic_th_15_8 0xABC2 +#define reg_ce_dynamic_th_15_8_pos 0 +#define reg_ce_dynamic_th_15_8_len 8 +#define reg_ce_dynamic_th_15_8_lsb 8 +#define xd_p_reg_ce_s1 0xABC3 +#define reg_ce_s1_pos 0 +#define reg_ce_s1_len 5 +#define reg_ce_s1_lsb 0 +#define xd_p_reg_ce_var_forced_value 0xABC3 +#define reg_ce_var_forced_value_pos 5 +#define reg_ce_var_forced_value_len 3 +#define reg_ce_var_forced_value_lsb 0 +#define xd_p_reg_ce_data_im_7_0 0xABC4 +#define reg_ce_data_im_7_0_pos 0 +#define reg_ce_data_im_7_0_len 8 +#define reg_ce_data_im_7_0_lsb 0 +#define xd_p_reg_ce_data_im_8 0xABC5 +#define reg_ce_data_im_8_pos 0 +#define reg_ce_data_im_8_len 1 +#define reg_ce_data_im_8_lsb 0 +#define xd_p_reg_ce_data_re_6_0 0xABC5 +#define reg_ce_data_re_6_0_pos 1 +#define reg_ce_data_re_6_0_len 7 +#define reg_ce_data_re_6_0_lsb 0 +#define xd_p_reg_ce_data_re_8_7 0xABC6 +#define reg_ce_data_re_8_7_pos 0 +#define reg_ce_data_re_8_7_len 2 +#define reg_ce_data_re_8_7_lsb 7 +#define xd_p_reg_ce_tone_5_0 0xABC6 +#define reg_ce_tone_5_0_pos 2 +#define reg_ce_tone_5_0_len 6 +#define reg_ce_tone_5_0_lsb 0 +#define xd_p_reg_ce_tone_12_6 0xABC7 +#define reg_ce_tone_12_6_pos 0 +#define reg_ce_tone_12_6_len 7 +#define reg_ce_tone_12_6_lsb 6 +#define xd_p_reg_ce_centroid_drift_th 0xABC8 +#define reg_ce_centroid_drift_th_pos 0 +#define reg_ce_centroid_drift_th_len 8 +#define reg_ce_centroid_drift_th_lsb 0 +#define xd_p_reg_ce_centroid_count_max 0xABC9 +#define reg_ce_centroid_count_max_pos 0 +#define reg_ce_centroid_count_max_len 4 +#define reg_ce_centroid_count_max_lsb 0 +#define xd_p_reg_ce_centroid_bias_inc_7_0 0xABCA +#define reg_ce_centroid_bias_inc_7_0_pos 0 +#define reg_ce_centroid_bias_inc_7_0_len 8 +#define reg_ce_centroid_bias_inc_7_0_lsb 0 +#define xd_p_reg_ce_centroid_bias_inc_8 0xABCB +#define reg_ce_centroid_bias_inc_8_pos 0 +#define reg_ce_centroid_bias_inc_8_len 1 +#define reg_ce_centroid_bias_inc_8_lsb 0 +#define xd_p_reg_ce_var_th0_7_0 0xABCC +#define reg_ce_var_th0_7_0_pos 0 +#define reg_ce_var_th0_7_0_len 8 +#define reg_ce_var_th0_7_0_lsb 0 +#define xd_p_reg_ce_var_th0_15_8 0xABCD +#define reg_ce_var_th0_15_8_pos 0 +#define reg_ce_var_th0_15_8_len 8 +#define reg_ce_var_th0_15_8_lsb 8 +#define xd_p_reg_ce_var_th1_7_0 0xABCE +#define reg_ce_var_th1_7_0_pos 0 +#define reg_ce_var_th1_7_0_len 8 +#define reg_ce_var_th1_7_0_lsb 0 +#define xd_p_reg_ce_var_th1_15_8 0xABCF +#define reg_ce_var_th1_15_8_pos 0 +#define reg_ce_var_th1_15_8_len 8 +#define reg_ce_var_th1_15_8_lsb 8 +#define xd_p_reg_ce_var_th2_7_0 0xABD0 +#define reg_ce_var_th2_7_0_pos 0 +#define reg_ce_var_th2_7_0_len 8 +#define reg_ce_var_th2_7_0_lsb 0 +#define xd_p_reg_ce_var_th2_15_8 0xABD1 +#define reg_ce_var_th2_15_8_pos 0 +#define reg_ce_var_th2_15_8_len 8 +#define reg_ce_var_th2_15_8_lsb 8 +#define xd_p_reg_ce_var_th3_7_0 0xABD2 +#define reg_ce_var_th3_7_0_pos 0 +#define reg_ce_var_th3_7_0_len 8 +#define reg_ce_var_th3_7_0_lsb 0 +#define xd_p_reg_ce_var_th3_15_8 0xABD3 +#define reg_ce_var_th3_15_8_pos 0 +#define reg_ce_var_th3_15_8_len 8 +#define reg_ce_var_th3_15_8_lsb 8 +#define xd_p_reg_ce_var_th4_7_0 0xABD4 +#define reg_ce_var_th4_7_0_pos 0 +#define reg_ce_var_th4_7_0_len 8 +#define reg_ce_var_th4_7_0_lsb 0 +#define xd_p_reg_ce_var_th4_15_8 0xABD5 +#define reg_ce_var_th4_15_8_pos 0 +#define reg_ce_var_th4_15_8_len 8 +#define reg_ce_var_th4_15_8_lsb 8 +#define xd_p_reg_ce_var_th5_7_0 0xABD6 +#define reg_ce_var_th5_7_0_pos 0 +#define reg_ce_var_th5_7_0_len 8 +#define reg_ce_var_th5_7_0_lsb 0 +#define xd_p_reg_ce_var_th5_15_8 0xABD7 +#define reg_ce_var_th5_15_8_pos 0 +#define reg_ce_var_th5_15_8_len 8 +#define reg_ce_var_th5_15_8_lsb 8 +#define xd_p_reg_ce_var_th6_7_0 0xABD8 +#define reg_ce_var_th6_7_0_pos 0 +#define reg_ce_var_th6_7_0_len 8 +#define reg_ce_var_th6_7_0_lsb 0 +#define xd_p_reg_ce_var_th6_15_8 0xABD9 +#define reg_ce_var_th6_15_8_pos 0 +#define reg_ce_var_th6_15_8_len 8 +#define reg_ce_var_th6_15_8_lsb 8 +#define xd_p_reg_ce_fctrl_reset 0xABDA +#define reg_ce_fctrl_reset_pos 0 +#define reg_ce_fctrl_reset_len 1 +#define reg_ce_fctrl_reset_lsb 0 +#define xd_p_reg_ce_cent_auto_clr_en 0xABDA +#define reg_ce_cent_auto_clr_en_pos 1 +#define reg_ce_cent_auto_clr_en_len 1 +#define reg_ce_cent_auto_clr_en_lsb 0 +#define xd_p_reg_ce_fctrl_auto_reset_en 0xABDA +#define reg_ce_fctrl_auto_reset_en_pos 2 +#define reg_ce_fctrl_auto_reset_en_len 1 +#define reg_ce_fctrl_auto_reset_en_lsb 0 +#define xd_p_reg_ce_var_forced_en 0xABDA +#define reg_ce_var_forced_en_pos 3 +#define reg_ce_var_forced_en_len 1 +#define reg_ce_var_forced_en_lsb 0 +#define xd_p_reg_ce_cent_forced_en 0xABDA +#define reg_ce_cent_forced_en_pos 4 +#define reg_ce_cent_forced_en_len 1 +#define reg_ce_cent_forced_en_lsb 0 +#define xd_p_reg_ce_var_max 0xABDA +#define reg_ce_var_max_pos 5 +#define reg_ce_var_max_len 3 +#define reg_ce_var_max_lsb 0 +#define xd_p_reg_ce_cent_forced_value_7_0 0xABDB +#define reg_ce_cent_forced_value_7_0_pos 0 +#define reg_ce_cent_forced_value_7_0_len 8 +#define reg_ce_cent_forced_value_7_0_lsb 0 +#define xd_p_reg_ce_cent_forced_value_11_8 0xABDC +#define reg_ce_cent_forced_value_11_8_pos 0 +#define reg_ce_cent_forced_value_11_8_len 4 +#define reg_ce_cent_forced_value_11_8_lsb 8 +#define xd_p_reg_ce_fctrl_rd 0xABDD +#define reg_ce_fctrl_rd_pos 0 +#define reg_ce_fctrl_rd_len 1 +#define reg_ce_fctrl_rd_lsb 0 +#define xd_p_reg_ce_centroid_max_6_0 0xABDD +#define reg_ce_centroid_max_6_0_pos 1 +#define reg_ce_centroid_max_6_0_len 7 +#define reg_ce_centroid_max_6_0_lsb 0 +#define xd_p_reg_ce_centroid_max_11_7 0xABDE +#define reg_ce_centroid_max_11_7_pos 0 +#define reg_ce_centroid_max_11_7_len 5 +#define reg_ce_centroid_max_11_7_lsb 7 +#define xd_p_reg_ce_var 0xABDF +#define reg_ce_var_pos 0 +#define reg_ce_var_len 3 +#define reg_ce_var_lsb 0 +#define xd_p_reg_ce_fctrl_rdy 0xABDF +#define reg_ce_fctrl_rdy_pos 3 +#define reg_ce_fctrl_rdy_len 1 +#define reg_ce_fctrl_rdy_lsb 0 +#define xd_p_reg_ce_centroid_out_3_0 0xABDF +#define reg_ce_centroid_out_3_0_pos 4 +#define reg_ce_centroid_out_3_0_len 4 +#define reg_ce_centroid_out_3_0_lsb 0 +#define xd_p_reg_ce_centroid_out_11_4 0xABE0 +#define reg_ce_centroid_out_11_4_pos 0 +#define reg_ce_centroid_out_11_4_len 8 +#define reg_ce_centroid_out_11_4_lsb 4 +#define xd_p_reg_ce_bias_7_0 0xABE1 +#define reg_ce_bias_7_0_pos 0 +#define reg_ce_bias_7_0_len 8 +#define reg_ce_bias_7_0_lsb 0 +#define xd_p_reg_ce_bias_11_8 0xABE2 +#define reg_ce_bias_11_8_pos 0 +#define reg_ce_bias_11_8_len 4 +#define reg_ce_bias_11_8_lsb 8 +#define xd_p_reg_ce_m1_3_0 0xABE2 +#define reg_ce_m1_3_0_pos 4 +#define reg_ce_m1_3_0_len 4 +#define reg_ce_m1_3_0_lsb 0 +#define xd_p_reg_ce_m1_11_4 0xABE3 +#define reg_ce_m1_11_4_pos 0 +#define reg_ce_m1_11_4_len 8 +#define reg_ce_m1_11_4_lsb 4 +#define xd_p_reg_ce_rh0_7_0 0xABE4 +#define reg_ce_rh0_7_0_pos 0 +#define reg_ce_rh0_7_0_len 8 +#define reg_ce_rh0_7_0_lsb 0 +#define xd_p_reg_ce_rh0_15_8 0xABE5 +#define reg_ce_rh0_15_8_pos 0 +#define reg_ce_rh0_15_8_len 8 +#define reg_ce_rh0_15_8_lsb 8 +#define xd_p_reg_ce_rh0_23_16 0xABE6 +#define reg_ce_rh0_23_16_pos 0 +#define reg_ce_rh0_23_16_len 8 +#define reg_ce_rh0_23_16_lsb 16 +#define xd_p_reg_ce_rh0_31_24 0xABE7 +#define reg_ce_rh0_31_24_pos 0 +#define reg_ce_rh0_31_24_len 8 +#define reg_ce_rh0_31_24_lsb 24 +#define xd_p_reg_ce_rh3_real_7_0 0xABE8 +#define reg_ce_rh3_real_7_0_pos 0 +#define reg_ce_rh3_real_7_0_len 8 +#define reg_ce_rh3_real_7_0_lsb 0 +#define xd_p_reg_ce_rh3_real_15_8 0xABE9 +#define reg_ce_rh3_real_15_8_pos 0 +#define reg_ce_rh3_real_15_8_len 8 +#define reg_ce_rh3_real_15_8_lsb 8 +#define xd_p_reg_ce_rh3_real_23_16 0xABEA +#define reg_ce_rh3_real_23_16_pos 0 +#define reg_ce_rh3_real_23_16_len 8 +#define reg_ce_rh3_real_23_16_lsb 16 +#define xd_p_reg_ce_rh3_real_31_24 0xABEB +#define reg_ce_rh3_real_31_24_pos 0 +#define reg_ce_rh3_real_31_24_len 8 +#define reg_ce_rh3_real_31_24_lsb 24 +#define xd_p_reg_ce_rh3_imag_7_0 0xABEC +#define reg_ce_rh3_imag_7_0_pos 0 +#define reg_ce_rh3_imag_7_0_len 8 +#define reg_ce_rh3_imag_7_0_lsb 0 +#define xd_p_reg_ce_rh3_imag_15_8 0xABED +#define reg_ce_rh3_imag_15_8_pos 0 +#define reg_ce_rh3_imag_15_8_len 8 +#define reg_ce_rh3_imag_15_8_lsb 8 +#define xd_p_reg_ce_rh3_imag_23_16 0xABEE +#define reg_ce_rh3_imag_23_16_pos 0 +#define reg_ce_rh3_imag_23_16_len 8 +#define reg_ce_rh3_imag_23_16_lsb 16 +#define xd_p_reg_ce_rh3_imag_31_24 0xABEF +#define reg_ce_rh3_imag_31_24_pos 0 +#define reg_ce_rh3_imag_31_24_len 8 +#define reg_ce_rh3_imag_31_24_lsb 24 +#define xd_p_reg_feq_fix_eh2_7_0 0xABF0 +#define reg_feq_fix_eh2_7_0_pos 0 +#define reg_feq_fix_eh2_7_0_len 8 +#define reg_feq_fix_eh2_7_0_lsb 0 +#define xd_p_reg_feq_fix_eh2_15_8 0xABF1 +#define reg_feq_fix_eh2_15_8_pos 0 +#define reg_feq_fix_eh2_15_8_len 8 +#define reg_feq_fix_eh2_15_8_lsb 8 +#define xd_p_reg_feq_fix_eh2_23_16 0xABF2 +#define reg_feq_fix_eh2_23_16_pos 0 +#define reg_feq_fix_eh2_23_16_len 8 +#define reg_feq_fix_eh2_23_16_lsb 16 +#define xd_p_reg_feq_fix_eh2_31_24 0xABF3 +#define reg_feq_fix_eh2_31_24_pos 0 +#define reg_feq_fix_eh2_31_24_len 8 +#define reg_feq_fix_eh2_31_24_lsb 24 +#define xd_p_reg_ce_m2_central_7_0 0xABF4 +#define reg_ce_m2_central_7_0_pos 0 +#define reg_ce_m2_central_7_0_len 8 +#define reg_ce_m2_central_7_0_lsb 0 +#define xd_p_reg_ce_m2_central_15_8 0xABF5 +#define reg_ce_m2_central_15_8_pos 0 +#define reg_ce_m2_central_15_8_len 8 +#define reg_ce_m2_central_15_8_lsb 8 +#define xd_p_reg_ce_fftshift 0xABF6 +#define reg_ce_fftshift_pos 0 +#define reg_ce_fftshift_len 4 +#define reg_ce_fftshift_lsb 0 +#define xd_p_reg_ce_fftshift1 0xABF6 +#define reg_ce_fftshift1_pos 4 +#define reg_ce_fftshift1_len 4 +#define reg_ce_fftshift1_lsb 0 +#define xd_p_reg_ce_fftshift2 0xABF7 +#define reg_ce_fftshift2_pos 0 +#define reg_ce_fftshift2_len 4 +#define reg_ce_fftshift2_lsb 0 +#define xd_p_reg_ce_top_mobile 0xABF7 +#define reg_ce_top_mobile_pos 4 +#define reg_ce_top_mobile_len 1 +#define reg_ce_top_mobile_lsb 0 +#define xd_p_reg_strong_sginal_detected 0xA2BC +#define reg_strong_sginal_detected_pos 2 +#define reg_strong_sginal_detected_len 1 +#define reg_strong_sginal_detected_lsb 0 + +#define XD_MP2IF_BASE 0xB000 +#define XD_MP2IF_CSR (0x00 + XD_MP2IF_BASE) +#define XD_MP2IF_DMX_CTRL (0x03 + XD_MP2IF_BASE) +#define XD_MP2IF_PID_IDX (0x04 + XD_MP2IF_BASE) +#define XD_MP2IF_PID_DATA_L (0x05 + XD_MP2IF_BASE) +#define XD_MP2IF_PID_DATA_H (0x06 + XD_MP2IF_BASE) +#define XD_MP2IF_MISC (0x07 + XD_MP2IF_BASE) + +extern struct dvb_frontend *af9005_fe_attach(struct dvb_usb_device *d); +extern int af9005_read_ofdm_register(struct dvb_usb_device *d, u16 reg, + u8 * value); +extern int af9005_read_ofdm_registers(struct dvb_usb_device *d, u16 reg, + u8 * values, int len); +extern int af9005_write_ofdm_register(struct dvb_usb_device *d, u16 reg, + u8 value); +extern int af9005_write_ofdm_registers(struct dvb_usb_device *d, u16 reg, + u8 * values, int len); +extern int af9005_read_tuner_registers(struct dvb_usb_device *d, u16 reg, + u8 addr, u8 * values, int len); +extern int af9005_write_tuner_registers(struct dvb_usb_device *d, u16 reg, + u8 * values, int len); +extern int af9005_read_register_bits(struct dvb_usb_device *d, u16 reg, + u8 pos, u8 len, u8 * value); +extern int af9005_write_register_bits(struct dvb_usb_device *d, u16 reg, + u8 pos, u8 len, u8 value); +extern int af9005_send_command(struct dvb_usb_device *d, u8 command, + u8 * wbuf, int wlen, u8 * rbuf, int rlen); +extern int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, + u8 * values, int len); +extern int af9005_tuner_attach(struct dvb_usb_adapter *adap); +extern int af9005_led_control(struct dvb_usb_device *d, int onoff); + +extern u8 regmask[8]; + +/* remote control decoder */ +extern int af9005_rc_decode(struct dvb_usb_device *d, u8 * data, int len, + u32 * event, int *state); +extern struct dvb_usb_rc_key af9005_rc_keys[]; +extern int af9005_rc_keys_size; + +#endif diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c index bac2ae3b4a1f..04e31cf7d530 100644 --- a/drivers/media/dvb/dvb-usb/cxusb.c +++ b/drivers/media/dvb/dvb-usb/cxusb.c @@ -354,41 +354,35 @@ static struct mt352_config cxusb_mt352_config = { /* Callbacks for DVB USB */ static int cxusb_fmd1216me_tuner_attach(struct dvb_usb_adapter *adap) { - u8 bpll[4] = { 0x0b, 0xdc, 0x9c, 0xa0 }; - adap->pll_addr = 0x61; - memcpy(adap->pll_init, bpll, 4); - adap->pll_desc = &dvb_pll_fmd1216me; - - adap->fe->ops.tuner_ops.init = dvb_usb_tuner_init_i2c; - adap->fe->ops.tuner_ops.set_params = dvb_usb_tuner_set_params_i2c; - + dvb_attach(dvb_pll_attach, adap->fe, 0x61, &adap->dev->i2c_adap, + DVB_PLL_FMD1216ME); return 0; } static int cxusb_dee1601_tuner_attach(struct dvb_usb_adapter *adap) { dvb_attach(dvb_pll_attach, adap->fe, 0x61, - NULL, &dvb_pll_thomson_dtt7579); + NULL, DVB_PLL_THOMSON_DTT7579); return 0; } static int cxusb_lgz201_tuner_attach(struct dvb_usb_adapter *adap) { - dvb_attach(dvb_pll_attach, adap->fe, 0x61, NULL, &dvb_pll_lg_z201); + dvb_attach(dvb_pll_attach, adap->fe, 0x61, NULL, DVB_PLL_LG_Z201); return 0; } static int cxusb_dtt7579_tuner_attach(struct dvb_usb_adapter *adap) { dvb_attach(dvb_pll_attach, adap->fe, 0x60, - NULL, &dvb_pll_thomson_dtt7579); + NULL, DVB_PLL_THOMSON_DTT7579); return 0; } static int cxusb_lgh064f_tuner_attach(struct dvb_usb_adapter *adap) { dvb_attach(dvb_pll_attach, adap->fe, 0x61, &adap->dev->i2c_adap, - &dvb_pll_lg_tdvs_h06xf); + DVB_PLL_LG_TDVS_H06XF); return 0; } diff --git a/drivers/media/dvb/dvb-usb/dibusb-common.c b/drivers/media/dvb/dvb-usb/dibusb-common.c index 5143e426d283..9a184da01c47 100644 --- a/drivers/media/dvb/dvb-usb/dibusb-common.c +++ b/drivers/media/dvb/dvb-usb/dibusb-common.c @@ -295,7 +295,7 @@ int dibusb_dib3000mc_tuner_attach(struct dvb_usb_adapter *adap) tun_i2c = dib3000mc_get_tuner_i2c_master(adap->fe, 1); if (dvb_attach(mt2060_attach, adap->fe, tun_i2c, &stk3000p_mt2060_config, if1) == NULL) { /* not found - use panasonic pll parameters */ - if (dvb_attach(dvb_pll_attach, adap->fe, 0x60, tun_i2c, &dvb_pll_env57h1xd5) == NULL) + if (dvb_attach(dvb_pll_attach, adap->fe, 0x60, tun_i2c, DVB_PLL_ENV57H1XD5) == NULL) return -ENOMEM; } else { st->mt2060_present = 1; diff --git a/drivers/media/dvb/dvb-usb/dibusb-mb.c b/drivers/media/dvb/dvb-usb/dibusb-mb.c index 7a6ae8f482e0..043cadae0859 100644 --- a/drivers/media/dvb/dvb-usb/dibusb-mb.c +++ b/drivers/media/dvb/dvb-usb/dibusb-mb.c @@ -14,6 +14,14 @@ */ #include "dibusb.h" +static int dib3000mb_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) +{ + struct dvb_usb_adapter *adap = fe->dvb->priv; + struct dibusb_state *st = adap->priv; + + return st->ops.tuner_pass_ctrl(fe, enable, st->tuner_addr); +} + static int dibusb_dib3000mb_frontend_attach(struct dvb_usb_adapter *adap) { struct dib3000_config demod_cfg; @@ -21,21 +29,34 @@ static int dibusb_dib3000mb_frontend_attach(struct dvb_usb_adapter *adap) demod_cfg.demod_address = 0x8; - if ((adap->fe = dib3000mb_attach(&demod_cfg,&adap->dev->i2c_adap,&st->ops)) == NULL) + if ((adap->fe = dvb_attach(dib3000mb_attach, &demod_cfg, + &adap->dev->i2c_adap, &st->ops)) == NULL) return -ENODEV; - adap->fe->ops.tuner_ops.init = dvb_usb_tuner_init_i2c; - adap->fe->ops.tuner_ops.set_params = dvb_usb_tuner_set_params_i2c; - - adap->tuner_pass_ctrl = st->ops.tuner_pass_ctrl; + adap->fe->ops.i2c_gate_ctrl = dib3000mb_i2c_gate_ctrl; return 0; } static int dibusb_thomson_tuner_attach(struct dvb_usb_adapter *adap) { - adap->pll_addr = 0x61; - adap->pll_desc = &dvb_pll_tua6010xs; + struct dibusb_state *st = adap->priv; + + st->tuner_addr = 0x61; + + dvb_attach(dvb_pll_attach, adap->fe, 0x61, &adap->dev->i2c_adap, + DVB_PLL_TUA6010XS); + return 0; +} + +static int dibusb_panasonic_tuner_attach(struct dvb_usb_adapter *adap) +{ + struct dibusb_state *st = adap->priv; + + st->tuner_addr = 0x60; + + dvb_attach(dvb_pll_attach, adap->fe, 0x60, &adap->dev->i2c_adap, + DVB_PLL_TDA665X); return 0; } @@ -50,30 +71,28 @@ static int dibusb_tuner_probe_and_attach(struct dvb_usb_adapter *adap) { .flags = 0, .buf = b, .len = 2 }, { .flags = I2C_M_RD, .buf = b2, .len = 1 }, }; + struct dibusb_state *st = adap->priv; /* the Panasonic sits on I2C addrass 0x60, the Thomson on 0x61 */ - msg[0].addr = msg[1].addr = 0x60; + msg[0].addr = msg[1].addr = st->tuner_addr = 0x60; - if (adap->tuner_pass_ctrl) - adap->tuner_pass_ctrl(adap->fe,1,msg[0].addr); + if (adap->fe->ops.i2c_gate_ctrl) + adap->fe->ops.i2c_gate_ctrl(adap->fe,1); if (i2c_transfer(&adap->dev->i2c_adap, msg, 2) != 2) { err("tuner i2c write failed."); ret = -EREMOTEIO; } - if (adap->tuner_pass_ctrl) - adap->tuner_pass_ctrl(adap->fe,0,msg[0].addr); + if (adap->fe->ops.i2c_gate_ctrl) + adap->fe->ops.i2c_gate_ctrl(adap->fe,0); if (b2[0] == 0xfe) { info("This device has the Thomson Cable onboard. Which is default."); - dibusb_thomson_tuner_attach(adap); + ret = dibusb_thomson_tuner_attach(adap); } else { - u8 bpll[4] = { 0x0b, 0xf5, 0x85, 0xab }; info("This device has the Panasonic ENV77H11D5 onboard."); - adap->pll_addr = 0x60; - memcpy(adap->pll_init,bpll,4); - adap->pll_desc = &dvb_pll_tda665x; + ret = dibusb_panasonic_tuner_attach(adap); } return ret; diff --git a/drivers/media/dvb/dvb-usb/dibusb.h b/drivers/media/dvb/dvb-usb/dibusb.h index b60781032742..8e847aa73ba1 100644 --- a/drivers/media/dvb/dvb-usb/dibusb.h +++ b/drivers/media/dvb/dvb-usb/dibusb.h @@ -99,6 +99,7 @@ struct dibusb_state { struct dib_fe_xfer_ops ops; int mt2060_present; + u8 tuner_addr; }; struct dibusb_device_state { diff --git a/drivers/media/dvb/dvb-usb/digitv.c b/drivers/media/dvb/dvb-usb/digitv.c index b5acb11c0bc9..bca1e0905739 100644 --- a/drivers/media/dvb/dvb-usb/digitv.c +++ b/drivers/media/dvb/dvb-usb/digitv.c @@ -118,7 +118,8 @@ static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe, struct dvb_f { struct dvb_usb_adapter *adap = fe->dvb->priv; u8 b[5]; - dvb_usb_tuner_calc_regs(fe,fep,b, 5); + + fe->ops.tuner_ops.calc_regs(fe, fep, b, sizeof(b)); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0); @@ -130,12 +131,14 @@ static struct nxt6000_config digitv_nxt6000_config = { static int digitv_frontend_attach(struct dvb_usb_adapter *adap) { + struct digitv_state *st = adap->dev->priv; + if ((adap->fe = dvb_attach(mt352_attach, &digitv_mt352_config, &adap->dev->i2c_adap)) != NULL) { - adap->fe->ops.tuner_ops.calc_regs = dvb_usb_tuner_calc_regs; + st->is_nxt6000 = 0; return 0; } if ((adap->fe = dvb_attach(nxt6000_attach, &digitv_nxt6000_config, &adap->dev->i2c_adap)) != NULL) { - adap->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; + st->is_nxt6000 = 1; return 0; } return -EIO; @@ -143,8 +146,14 @@ static int digitv_frontend_attach(struct dvb_usb_adapter *adap) static int digitv_tuner_attach(struct dvb_usb_adapter *adap) { - adap->pll_addr = 0x60; - adap->pll_desc = &dvb_pll_tded4; + struct digitv_state *st = adap->dev->priv; + + if (!dvb_attach(dvb_pll_attach, adap->fe, 0x60, NULL, DVB_PLL_TDED4)) + return -ENODEV; + + if (st->is_nxt6000) + adap->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; + return 0; } @@ -273,6 +282,8 @@ static struct dvb_usb_device_properties digitv_properties = { .usb_ctrl = CYPRESS_FX2, .firmware = "dvb-usb-digitv-02.fw", + .size_of_priv = sizeof(struct digitv_state), + .num_adapters = 1, .adapter = { { diff --git a/drivers/media/dvb/dvb-usb/digitv.h b/drivers/media/dvb/dvb-usb/digitv.h index 477ee428a70e..8b43e3db8691 100644 --- a/drivers/media/dvb/dvb-usb/digitv.h +++ b/drivers/media/dvb/dvb-usb/digitv.h @@ -4,6 +4,10 @@ #define DVB_USB_LOG_PREFIX "digitv" #include "dvb-usb.h" +struct digitv_state { + int is_nxt6000; +}; + extern int dvb_usb_digitv_debug; #define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args) diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c index 088b6dee3a7f..23428cd30756 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c +++ b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c @@ -46,82 +46,3 @@ int dvb_usb_i2c_exit(struct dvb_usb_device *d) d->state &= ~DVB_USB_STATE_I2C; return 0; } - -int dvb_usb_tuner_init_i2c(struct dvb_frontend *fe) -{ - struct dvb_usb_adapter *adap = fe->dvb->priv; - struct i2c_msg msg = { .addr = adap->pll_addr, .flags = 0, .buf = adap->pll_init, .len = 4 }; - int ret = 0; - - /* if pll_desc is not used */ - if (adap->pll_desc == NULL) - return 0; - - if (adap->tuner_pass_ctrl) - adap->tuner_pass_ctrl(fe, 1, adap->pll_addr); - - deb_pll("pll init: %x\n",adap->pll_addr); - deb_pll("pll-buf: %x %x %x %x\n",adap->pll_init[0], adap->pll_init[1], - adap->pll_init[2], adap->pll_init[3]); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if (i2c_transfer (&adap->dev->i2c_adap, &msg, 1) != 1) { - err("tuner i2c write failed for pll_init."); - ret = -EREMOTEIO; - } - msleep(1); - - if (adap->tuner_pass_ctrl) - adap->tuner_pass_ctrl(fe,0,adap->pll_addr); - return ret; -} -EXPORT_SYMBOL(dvb_usb_tuner_init_i2c); - -int dvb_usb_tuner_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep, u8 *b, int buf_len) -{ - struct dvb_usb_adapter *adap = fe->dvb->priv; - - if (buf_len != 5) - return -EINVAL; - if (adap->pll_desc == NULL) - return 0; - - deb_pll("pll addr: %x, freq: %d %p\n",adap->pll_addr, fep->frequency, adap->pll_desc); - - b[0] = adap->pll_addr; - dvb_pll_configure(adap->pll_desc, &b[1], fep->frequency, fep->u.ofdm.bandwidth); - - deb_pll("pll-buf: %x %x %x %x %x\n",b[0],b[1],b[2],b[3],b[4]); - - return 5; -} -EXPORT_SYMBOL(dvb_usb_tuner_calc_regs); - -int dvb_usb_tuner_set_params_i2c(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) -{ - struct dvb_usb_adapter *adap = fe->dvb->priv; - int ret = 0; - u8 b[5]; - struct i2c_msg msg = { .addr = adap->pll_addr, .flags = 0, .buf = &b[1], .len = 4 }; - - dvb_usb_tuner_calc_regs(fe,fep,b,5); - - if (adap->tuner_pass_ctrl) - adap->tuner_pass_ctrl(fe, 1, adap->pll_addr); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - if (i2c_transfer(&adap->dev->i2c_adap, &msg, 1) != 1) { - err("tuner i2c write failed for pll_set."); - ret = -EREMOTEIO; - } - msleep(1); - - if (adap->tuner_pass_ctrl) - adap->tuner_pass_ctrl(fe, 0, adap->pll_addr); - - return ret; -} -EXPORT_SYMBOL(dvb_usb_tuner_set_params_i2c); diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h index 403081689de1..4dfab02a8a0d 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h +++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h @@ -11,7 +11,9 @@ /* Vendor IDs */ #define USB_VID_ADSTECH 0x06e1 +#define USB_VID_AFATECH 0x15a4 #define USB_VID_ALCOR_MICRO 0x058f +#define USB_VID_ALINK 0x05e3 #define USB_VID_ANCHOR 0x0547 #define USB_VID_ANUBIS_ELECTRONIC 0x10fd #define USB_VID_AVERMEDIA 0x07ca @@ -35,6 +37,7 @@ #define USB_VID_MSI 0x0db0 #define USB_VID_OPERA1 0x695c #define USB_VID_PINNACLE 0x2304 +#define USB_VID_TERRATEC 0x0ccd #define USB_VID_VISIONPLUS 0x13d3 #define USB_VID_TWINHAN 0x1822 #define USB_VID_ULTIMA_ELECTRONIC 0x05d8 @@ -44,6 +47,8 @@ /* Product IDs */ #define USB_PID_ADSTECH_USB2_COLD 0xa333 #define USB_PID_ADSTECH_USB2_WARM 0xa334 +#define USB_PID_AFATECH_AF9005 0x9020 +#define USB_VID_ALINK_DTU 0xf170 #define USB_PID_AVERMEDIA_DVBT_USB_COLD 0x0001 #define USB_PID_AVERMEDIA_DVBT_USB_WARM 0x0002 #define USB_PID_AVERMEDIA_DVBT_USB2_COLD 0xa800 @@ -69,6 +74,7 @@ #define USB_PID_GRANDTEC_DVBT_USB_WARM 0x0fa1 #define USB_PID_KWORLD_VSTREAM_COLD 0x17de #define USB_PID_KWORLD_VSTREAM_WARM 0x17df +#define USB_PID_TERRATEC_CINERGY_T_USB_XE 0x0055 #define USB_PID_TWINHAN_VP7041_COLD 0x3201 #define USB_PID_TWINHAN_VP7041_WARM 0x3202 #define USB_PID_TWINHAN_VP7020_COLD 0x3203 diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c index 9200a30dd1b9..7b9f35bfb4f0 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c +++ b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c @@ -110,7 +110,7 @@ int dvb_usb_remote_init(struct dvb_usb_device *d) input_dev->name = "IR-receiver inside an USB DVB receiver"; input_dev->phys = d->rc_phys; usb_to_input_id(d->udev, &input_dev->id); - input_dev->cdev.dev = &d->udev->dev; + input_dev->dev.parent = &d->udev->dev; /* set the bits for the keys */ deb_rc("key map size: %d\n", d->props.rc_key_map_size); diff --git a/drivers/media/dvb/dvb-usb/dvb-usb.h b/drivers/media/dvb/dvb-usb/dvb-usb.h index 6f824a569e14..d1b3c7b81fff 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb.h +++ b/drivers/media/dvb/dvb-usb/dvb-usb.h @@ -297,12 +297,6 @@ struct dvb_usb_adapter { int feedcount; int pid_filtering; - /* tuner programming information */ - u8 pll_addr; - u8 pll_init[4]; - struct dvb_pll_desc *pll_desc; - int (*tuner_pass_ctrl) (struct dvb_frontend *, int, u8); - /* dvb */ struct dvb_adapter dvb_adap; struct dmxdev dmxdev; @@ -388,11 +382,6 @@ extern int dvb_usb_generic_write(struct dvb_usb_device *, u8 *, u16); /* commonly used remote control parsing */ extern int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *, u8[], u32 *, int *); -/* commonly used pll init and set functions */ -extern int dvb_usb_tuner_init_i2c(struct dvb_frontend *); -extern int dvb_usb_tuner_calc_regs(struct dvb_frontend *, struct dvb_frontend_parameters *, u8 *buf, int buf_len); -extern int dvb_usb_tuner_set_params_i2c(struct dvb_frontend *, struct dvb_frontend_parameters *); - /* commonly used firmware download types and function */ struct hexline { u8 len; diff --git a/drivers/media/dvb/dvb-usb/gl861.c b/drivers/media/dvb/dvb-usb/gl861.c index e0587e663591..f01d99c1c43c 100644 --- a/drivers/media/dvb/dvb-usb/gl861.c +++ b/drivers/media/dvb/dvb-usb/gl861.c @@ -157,6 +157,7 @@ static int gl861_probe(struct usb_interface *intf, static struct usb_device_id gl861_table [] = { { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801) }, + { USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE (usb, gl861_table); @@ -187,12 +188,16 @@ static struct dvb_usb_device_properties gl861_properties = { }}, .i2c_algo = &gl861_i2c_algo, - .num_device_descs = 1, + .num_device_descs = 2, .devices = { { "MSI Mega Sky 55801 DVB-T USB2.0", { &gl861_table[0], NULL }, { NULL }, }, + { "A-LINK DTU DVB-T USB2.0", + { &gl861_table[1], NULL }, + { NULL }, + }, } }; diff --git a/drivers/media/dvb/dvb-usb/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c index c546ddeda5d4..a956bc503a4c 100644 --- a/drivers/media/dvb/dvb-usb/m920x.c +++ b/drivers/media/dvb/dvb-usb/m920x.c @@ -22,6 +22,8 @@ static int dvb_usb_m920x_debug; module_param_named(debug,dvb_usb_m920x_debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); +static int m920x_set_filter(struct dvb_usb_device *d, int type, int idx, int pid); + static inline int m920x_read(struct usb_device *udev, u8 request, u16 value, u16 index, void *data, int size) { @@ -57,7 +59,8 @@ static inline int m920x_write(struct usb_device *udev, u8 request, static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq) { - int ret = 0; + int ret = 0, i, epi, flags = 0; + int adap_enabled[M9206_MAX_ADAPTERS] = { 0 }; /* Remote controller init. */ if (d->props.rc_query) { @@ -76,9 +79,51 @@ static int m920x_init(struct dvb_usb_device *d, struct m920x_inits *rc_seq) deb("Initialising remote control success\n"); } + for (i = 0; i < d->props.num_adapters; i++) + flags |= d->adapter[i].props.caps; + + /* Some devices(Dposh) might crash if we attempt touch at all. */ + if (flags & DVB_USB_ADAP_HAS_PID_FILTER) { + for (i = 0; i < d->props.num_adapters; i++) { + epi = d->adapter[i].props.stream.endpoint - 0x81; + + if (epi < 0 || epi >= M9206_MAX_ADAPTERS) { + printk(KERN_INFO "m920x: Unexpected adapter endpoint!\n"); + return -EINVAL; + } + + adap_enabled[epi] = 1; + } + + for (i = 0; i < M9206_MAX_ADAPTERS; i++) { + if (adap_enabled[i]) + continue; + + if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x0)) != 0) + return ret; + + if ((ret = m920x_set_filter(d, 0x81 + i, 0, 0x02f5)) != 0) + return ret; + } + } + return ret; } +static int m920x_init_ep(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct usb_host_interface *alt; + + if ((alt = usb_altnum_to_altsetting(intf, 1)) == NULL) { + deb("No alt found!\n"); + return -ENODEV; + } + + return usb_set_interface(udev, alt->desc.bInterfaceNumber, + alt->desc.bAlternateSetting); +} + static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state) { struct m920x_state *m = d->priv; @@ -211,8 +256,7 @@ static struct i2c_algorithm m920x_i2c_algo = { }; /* pid filter */ -static int m920x_set_filter(struct dvb_usb_adapter *adap, - int type, int idx, int pid) +static int m920x_set_filter(struct dvb_usb_device *d, int type, int idx, int pid) { int ret = 0; @@ -221,10 +265,10 @@ static int m920x_set_filter(struct dvb_usb_adapter *adap, pid |= 0x8000; - if ((ret = m920x_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0) + if ((ret = m920x_write(d->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0) return ret; - if ((ret = m920x_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0) + if ((ret = m920x_write(d->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0) return ret; return ret; @@ -233,40 +277,35 @@ static int m920x_set_filter(struct dvb_usb_adapter *adap, static int m920x_update_filters(struct dvb_usb_adapter *adap) { struct m920x_state *m = adap->dev->priv; - int enabled = m->filtering_enabled; + int enabled = m->filtering_enabled[adap->id]; int i, ret = 0, filter = 0; + int ep = adap->props.stream.endpoint; for (i = 0; i < M9206_MAX_FILTERS; i++) - if (m->filters[i] == 8192) + if (m->filters[adap->id][i] == 8192) enabled = 0; /* Disable all filters */ - if ((ret = m920x_set_filter(adap, 0x81, 1, enabled)) != 0) + if ((ret = m920x_set_filter(adap->dev, ep, 1, enabled)) != 0) return ret; for (i = 0; i < M9206_MAX_FILTERS; i++) - if ((ret = m920x_set_filter(adap, 0x81, i + 2, 0)) != 0) + if ((ret = m920x_set_filter(adap->dev, ep, i + 2, 0)) != 0) return ret; - if ((ret = m920x_set_filter(adap, 0x82, 0, 0x0)) != 0) - return ret; - /* Set */ if (enabled) { for (i = 0; i < M9206_MAX_FILTERS; i++) { - if (m->filters[i] == 0) + if (m->filters[adap->id][i] == 0) continue; - if ((ret = m920x_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0) + if ((ret = m920x_set_filter(adap->dev, ep, filter + 2, m->filters[adap->id][i])) != 0) return ret; filter++; } } - if ((ret = m920x_set_filter(adap, 0x82, 0, 0x02f5)) != 0) - return ret; - return ret; } @@ -274,7 +313,7 @@ static int m920x_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff) { struct m920x_state *m = adap->dev->priv; - m->filtering_enabled = onoff ? 1 : 0; + m->filtering_enabled[adap->id] = onoff ? 1 : 0; return m920x_update_filters(adap); } @@ -283,7 +322,7 @@ static int m920x_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, in { struct m920x_state *m = adap->dev->priv; - m->filters[index] = onoff ? pid : 0; + m->filters[adap->id][index] = onoff ? pid : 0; return m920x_update_filters(adap); } @@ -368,6 +407,7 @@ static int m920x_identify_state(struct usb_device *udev, /* demod configurations */ static int m920x_mt352_demod_init(struct dvb_frontend *fe) { + int ret; u8 config[] = { CONFIG, 0x3d }; u8 clock[] = { CLOCK_CTL, 0x30 }; u8 reset[] = { RESET, 0x80 }; @@ -377,17 +417,25 @@ static int m920x_mt352_demod_init(struct dvb_frontend *fe) u8 unk1[] = { 0x93, 0x1a }; u8 unk2[] = { 0xb5, 0x7a }; - mt352_write(fe, config, ARRAY_SIZE(config)); - mt352_write(fe, clock, ARRAY_SIZE(clock)); - mt352_write(fe, reset, ARRAY_SIZE(reset)); - mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl)); - mt352_write(fe, agc, ARRAY_SIZE(agc)); - mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc)); - mt352_write(fe, unk1, ARRAY_SIZE(unk1)); - mt352_write(fe, unk2, ARRAY_SIZE(unk2)); - deb("Demod init!\n"); + if ((ret = mt352_write(fe, config, ARRAY_SIZE(config))) != 0) + return ret; + if ((ret = mt352_write(fe, clock, ARRAY_SIZE(clock))) != 0) + return ret; + if ((ret = mt352_write(fe, reset, ARRAY_SIZE(reset))) != 0) + return ret; + if ((ret = mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl))) != 0) + return ret; + if ((ret = mt352_write(fe, agc, ARRAY_SIZE(agc))) != 0) + return ret; + if ((ret = mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc))) != 0) + return ret; + if ((ret = mt352_write(fe, unk1, ARRAY_SIZE(unk1))) != 0) + return ret; + if ((ret = mt352_write(fe, unk2, ARRAY_SIZE(unk2))) != 0) + return ret; + return 0; } @@ -558,8 +606,7 @@ static struct dvb_usb_device_properties dposh_properties; static int m920x_probe(struct usb_interface *intf, const struct usb_device_id *id) { - struct dvb_usb_device *d; - struct usb_host_interface *alt; + struct dvb_usb_device *d = NULL; int ret; struct m920x_inits *rc_init_seq = NULL; int bInterfaceNumber = intf->cur_altsetting->desc.bInterfaceNumber; @@ -604,23 +651,13 @@ static int m920x_probe(struct usb_interface *intf, * tvwalkertwin_properties already configured both * tuners, so there is nothing for us to do here */ - - return -ENODEV; } found: - alt = usb_altnum_to_altsetting(intf, 1); - if (alt == NULL) { - deb("No alt found!\n"); - return -ENODEV; - } - - ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, - alt->desc.bAlternateSetting); - if (ret < 0) + if ((ret = m920x_init_ep(intf)) < 0) return ret; - if ((ret = m920x_init(d, rc_init_seq)) != 0) + if (d && (ret = m920x_init(d, rc_init_seq)) != 0) return ret; return ret; @@ -737,9 +774,9 @@ static struct dvb_usb_device_properties digivox_mini_ii_properties = { * * LifeView TV Walker Twin has 1 x M9206, 2 x TDA10046, 2 x TDA8275A * TDA10046 #0 is located at i2c address 0x08 - * TDA10046 #1 is located at i2c address 0x0b (presently disabled - not yet working) + * TDA10046 #1 is located at i2c address 0x0b * TDA8275A #0 is located at i2c address 0x60 - * TDA8275A #1 is located at i2c address 0x61 (presently disabled - not yet working) + * TDA8275A #1 is located at i2c address 0x61 */ static struct dvb_usb_device_properties tvwalkertwin_properties = { .caps = DVB_USB_IS_AN_I2C_ADAPTER, @@ -756,7 +793,7 @@ static struct dvb_usb_device_properties tvwalkertwin_properties = { .size_of_priv = sizeof(struct m920x_state), .identify_state = m920x_identify_state, - .num_adapters = 1, + .num_adapters = 2, .adapter = {{ .caps = DVB_USB_ADAP_HAS_PID_FILTER | DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF, diff --git a/drivers/media/dvb/dvb-usb/m920x.h b/drivers/media/dvb/dvb-usb/m920x.h index 2c8942d04222..37532890accd 100644 --- a/drivers/media/dvb/dvb-usb/m920x.h +++ b/drivers/media/dvb/dvb-usb/m920x.h @@ -18,6 +18,7 @@ #define M9206_FW 0x30 #define M9206_MAX_FILTERS 8 +#define M9206_MAX_ADAPTERS 2 /* sequences found in logs: @@ -60,8 +61,8 @@ response to a write, is unknown. */ struct m920x_state { - u16 filters[M9206_MAX_FILTERS]; - int filtering_enabled; + u16 filters[M9206_MAX_ADAPTERS][M9206_MAX_FILTERS]; + int filtering_enabled[M9206_MAX_ADAPTERS]; int rep_count; }; diff --git a/drivers/media/dvb/dvb-usb/opera1.c b/drivers/media/dvb/dvb-usb/opera1.c index 518d7ad217df..d7c04951ceab 100644 --- a/drivers/media/dvb/dvb-usb/opera1.c +++ b/drivers/media/dvb/dvb-usb/opera1.c @@ -263,7 +263,7 @@ static int opera1_tuner_attach(struct dvb_usb_adapter *adap) { dvb_attach( dvb_pll_attach, adap->fe, 0xc0>>1, - &adap->dev->i2c_adap, &dvb_pll_opera1 + &adap->dev->i2c_adap, DVB_PLL_OPERA1 ); return 0; } @@ -435,9 +435,9 @@ static int opera1_xilinx_load_firmware(struct usb_device *dev, { const struct firmware *fw = NULL; u8 *b, *p; - int ret = 0, i; + int ret = 0, i,fpgasize=40; u8 testval; - info("start downloading fpga firmware"); + info("start downloading fpga firmware %s",filename); if ((ret = request_firmware(&fw, filename, &dev->dev)) != 0) { err("did not find the firmware file. (%s) " @@ -454,17 +454,20 @@ static int opera1_xilinx_load_firmware(struct usb_device *dev, /* clear fpga ? */ opera1_xilinx_rw(dev, 0xbc, 0xaa, &fpga_command, 1, OPERA_WRITE_MSG); - for (i = 0; p[i] != 0 && i < fw->size;) { + for (i = 0; i < fw->size;) { + if ( (fw->size - i) <fpgasize){ + fpgasize=fw->size-i; + } b = (u8 *) p + i; if (opera1_xilinx_rw - (dev, OPERA_WRITE_FX2, 0x0, b + 1, b[0], - OPERA_WRITE_MSG) != b[0] + (dev, OPERA_WRITE_FX2, 0x0, b , fpgasize, + OPERA_WRITE_MSG) != fpgasize ) { err("error while transferring firmware"); ret = -EINVAL; break; } - i = i + 1 + b[0]; + i = i + fpgasize; } /* restart the CPU */ if (ret || opera1_xilinx_rw @@ -534,18 +537,16 @@ static struct dvb_usb_device_properties opera1_properties = { static int opera1_probe(struct usb_interface *intf, const struct usb_device_id *id) { - struct dvb_usb_device *d; struct usb_device *udev = interface_to_usbdev(intf); if (udev->descriptor.idProduct == USB_PID_OPERA1_WARM && udev->descriptor.idVendor == USB_VID_OPERA1 && - (d == NULL - || opera1_xilinx_load_firmware(udev, "dvb-usb-opera1-fpga.fw") != 0) - ) { + opera1_xilinx_load_firmware(udev, "dvb-usb-opera1-fpga-01.fw") != 0 + ) { return -EINVAL; } - if (dvb_usb_device_init(intf, &opera1_properties, THIS_MODULE, &d) != 0) + if (dvb_usb_device_init(intf, &opera1_properties, THIS_MODULE, NULL) != 0) return -EINVAL; return 0; } diff --git a/drivers/media/dvb/dvb-usb/umt-010.c b/drivers/media/dvb/dvb-usb/umt-010.c index f77b48f76582..0dcab3d4e236 100644 --- a/drivers/media/dvb/dvb-usb/umt-010.c +++ b/drivers/media/dvb/dvb-usb/umt-010.c @@ -65,9 +65,7 @@ static int umt_mt352_frontend_attach(struct dvb_usb_adapter *adap) static int umt_tuner_attach (struct dvb_usb_adapter *adap) { - adap->pll_addr = 0x61; - adap->pll_desc = &dvb_pll_tua6034; - adap->fe->ops.tuner_ops.calc_regs = dvb_usb_tuner_calc_regs; + dvb_attach(dvb_pll_attach, adap->fe, 0x61, NULL, DVB_PLL_TUA6034); return 0; } @@ -84,8 +82,8 @@ static int umt_probe(struct usb_interface *intf, /* do not change the order of the ID table */ static struct usb_device_id umt_table [] = { -/* 00 */ { USB_DEVICE(USB_VID_HANFTEK, USB_PID_HANFTEK_UMT_010_COLD) }, -/* 01 */ { USB_DEVICE(USB_VID_HANFTEK, USB_PID_HANFTEK_UMT_010_WARM) }, +/* 00 */ { USB_DEVICE(USB_VID_HANFTEK, USB_PID_HANFTEK_UMT_010_COLD) }, +/* 01 */ { USB_DEVICE(USB_VID_HANFTEK, USB_PID_HANFTEK_UMT_010_WARM) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE (usb, umt_table); diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index 27f386585d43..156b062e02c4 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -2,7 +2,7 @@ # Makefile for the kernel DVB frontend device drivers. # -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ obj-$(CONFIG_DVB_PLL) += dvb-pll.o obj-$(CONFIG_DVB_STV0299) += stv0299.o diff --git a/drivers/media/dvb/frontends/cx22702.c b/drivers/media/dvb/frontends/cx22702.c index 335219ebce2d..1dc164d5488c 100644 --- a/drivers/media/dvb/frontends/cx22702.c +++ b/drivers/media/dvb/frontends/cx22702.c @@ -32,7 +32,6 @@ #include <linux/slab.h> #include <linux/delay.h> #include "dvb_frontend.h" -#include "dvb-pll.h" #include "cx22702.h" diff --git a/drivers/media/dvb/frontends/cx24123.c b/drivers/media/dvb/frontends/cx24123.c index 732e94aaa364..0834c0677fef 100644 --- a/drivers/media/dvb/frontends/cx24123.c +++ b/drivers/media/dvb/frontends/cx24123.c @@ -917,7 +917,7 @@ static int cx24123_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) static int cx24123_tune(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, unsigned int mode_flags, - int *delay, + unsigned int *delay, fe_status_t *status) { int retval = 0; diff --git a/drivers/media/dvb/frontends/dvb-pll.c b/drivers/media/dvb/frontends/dvb-pll.c index 5f96ffda91ad..0c0b94767bc1 100644 --- a/drivers/media/dvb/frontends/dvb-pll.c +++ b/drivers/media/dvb/frontends/dvb-pll.c @@ -24,6 +24,23 @@ #include "dvb-pll.h" +struct dvb_pll_desc { + char *name; + u32 min; + u32 max; + u32 iffreq; + void (*set)(u8 *buf, const struct dvb_frontend_parameters *params); + u8 *initdata; + u8 *sleepdata; + int count; + struct { + u32 limit; + u32 stepsize; + u8 config; + u8 cb; + } entries[12]; +}; + /* ----------------------------------------------------------- */ /* descriptions */ @@ -38,7 +55,13 @@ 0x50 = AGC Take over point = 103 dBuV */ static u8 tua603x_agc103[] = { 2, 0x80|0x40|0x18|0x06|0x01, 0x00|0x50 }; -struct dvb_pll_desc dvb_pll_thomson_dtt7579 = { +/* 0x04 = 166.67 kHz divider + + 0x80 = AGC Time constant 50ms Iagc = 9 uA + 0x20 = AGC Take over point = 112 dBuV */ +static u8 tua603x_agc112[] = { 2, 0x80|0x40|0x18|0x04|0x01, 0x80|0x20 }; + +static struct dvb_pll_desc dvb_pll_thomson_dtt7579 = { .name = "Thomson dtt7579", .min = 177000000, .max = 858000000, @@ -52,9 +75,8 @@ struct dvb_pll_desc dvb_pll_thomson_dtt7579 = { { 999999999, 166667, 0xf4, 0x08 }, }, }; -EXPORT_SYMBOL(dvb_pll_thomson_dtt7579); -struct dvb_pll_desc dvb_pll_thomson_dtt7610 = { +static struct dvb_pll_desc dvb_pll_thomson_dtt7610 = { .name = "Thomson dtt7610", .min = 44000000, .max = 958000000, @@ -66,19 +88,19 @@ struct dvb_pll_desc dvb_pll_thomson_dtt7610 = { { 999999999, 62500, 0x8e, 0x3c }, }, }; -EXPORT_SYMBOL(dvb_pll_thomson_dtt7610); -static void thomson_dtt759x_bw(u8 *buf, u32 freq, int bandwidth) +static void thomson_dtt759x_bw(u8 *buf, + const struct dvb_frontend_parameters *params) { - if (BANDWIDTH_7_MHZ == bandwidth) + if (BANDWIDTH_7_MHZ == params->u.ofdm.bandwidth) buf[3] |= 0x10; } -struct dvb_pll_desc dvb_pll_thomson_dtt759x = { +static struct dvb_pll_desc dvb_pll_thomson_dtt759x = { .name = "Thomson dtt759x", .min = 177000000, .max = 896000000, - .setbw = thomson_dtt759x_bw, + .set = thomson_dtt759x_bw, .iffreq= 36166667, .sleepdata = (u8[]){ 2, 0x84, 0x03 }, .count = 5, @@ -90,9 +112,8 @@ struct dvb_pll_desc dvb_pll_thomson_dtt759x = { { 999999999, 166667, 0xfc, 0x08 }, }, }; -EXPORT_SYMBOL(dvb_pll_thomson_dtt759x); -struct dvb_pll_desc dvb_pll_lg_z201 = { +static struct dvb_pll_desc dvb_pll_lg_z201 = { .name = "LG z201", .min = 174000000, .max = 862000000, @@ -107,9 +128,8 @@ struct dvb_pll_desc dvb_pll_lg_z201 = { { 999999999, 166667, 0xfc, 0x04 }, }, }; -EXPORT_SYMBOL(dvb_pll_lg_z201); -struct dvb_pll_desc dvb_pll_microtune_4042 = { +static struct dvb_pll_desc dvb_pll_microtune_4042 = { .name = "Microtune 4042 FI5", .min = 57000000, .max = 858000000, @@ -121,9 +141,8 @@ struct dvb_pll_desc dvb_pll_microtune_4042 = { { 999999999, 62500, 0x8e, 0x31 }, }, }; -EXPORT_SYMBOL(dvb_pll_microtune_4042); -struct dvb_pll_desc dvb_pll_thomson_dtt761x = { +static struct dvb_pll_desc dvb_pll_thomson_dtt761x = { /* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */ .name = "Thomson dtt761x", .min = 57000000, @@ -137,9 +156,8 @@ struct dvb_pll_desc dvb_pll_thomson_dtt761x = { { 999999999, 62500, 0x8e, 0x3c }, }, }; -EXPORT_SYMBOL(dvb_pll_thomson_dtt761x); -struct dvb_pll_desc dvb_pll_unknown_1 = { +static struct dvb_pll_desc dvb_pll_unknown_1 = { .name = "unknown 1", /* used by dntv live dvb-t */ .min = 174000000, .max = 862000000, @@ -157,12 +175,11 @@ struct dvb_pll_desc dvb_pll_unknown_1 = { { 999999999, 166667, 0xfc, 0x08 }, }, }; -EXPORT_SYMBOL(dvb_pll_unknown_1); /* Infineon TUA6010XS * used in Thomson Cable Tuner */ -struct dvb_pll_desc dvb_pll_tua6010xs = { +static struct dvb_pll_desc dvb_pll_tua6010xs = { .name = "Infineon TUA6010XS", .min = 44250000, .max = 858000000, @@ -174,10 +191,9 @@ struct dvb_pll_desc dvb_pll_tua6010xs = { { 999999999, 62500, 0x8e, 0x85 }, }, }; -EXPORT_SYMBOL(dvb_pll_tua6010xs); /* Panasonic env57h1xd5 (some Philips PLL ?) */ -struct dvb_pll_desc dvb_pll_env57h1xd5 = { +static struct dvb_pll_desc dvb_pll_env57h1xd5 = { .name = "Panasonic ENV57H1XD5", .min = 44250000, .max = 858000000, @@ -190,23 +206,23 @@ struct dvb_pll_desc dvb_pll_env57h1xd5 = { { 999999999, 166667, 0xc2, 0xa4 }, }, }; -EXPORT_SYMBOL(dvb_pll_env57h1xd5); /* Philips TDA6650/TDA6651 * used in Panasonic ENV77H11D5 */ -static void tda665x_bw(u8 *buf, u32 freq, int bandwidth) +static void tda665x_bw(u8 *buf, const struct dvb_frontend_parameters *params) { - if (bandwidth == BANDWIDTH_8_MHZ) + if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) buf[3] |= 0x08; } -struct dvb_pll_desc dvb_pll_tda665x = { +static struct dvb_pll_desc dvb_pll_tda665x = { .name = "Philips TDA6650/TDA6651", .min = 44250000, .max = 858000000, - .setbw = tda665x_bw, + .set = tda665x_bw, .iffreq= 36166667, + .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab }, .count = 12, .entries = { { 93834000, 166667, 0xca, 0x61 /* 011 0 0 0 01 */ }, @@ -223,36 +239,34 @@ struct dvb_pll_desc dvb_pll_tda665x = { { 861000000, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ }, } }; -EXPORT_SYMBOL(dvb_pll_tda665x); /* Infineon TUA6034 * used in LG TDTP E102P */ -static void tua6034_bw(u8 *buf, u32 freq, int bandwidth) +static void tua6034_bw(u8 *buf, const struct dvb_frontend_parameters *params) { - if (BANDWIDTH_7_MHZ != bandwidth) + if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth) buf[3] |= 0x08; } -struct dvb_pll_desc dvb_pll_tua6034 = { +static struct dvb_pll_desc dvb_pll_tua6034 = { .name = "Infineon TUA6034", .min = 44250000, .max = 858000000, .iffreq= 36166667, .count = 3, - .setbw = tua6034_bw, + .set = tua6034_bw, .entries = { { 174500000, 62500, 0xce, 0x01 }, { 230000000, 62500, 0xce, 0x02 }, { 999999999, 62500, 0xce, 0x04 }, }, }; -EXPORT_SYMBOL(dvb_pll_tua6034); /* Infineon TUA6034 * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F */ -struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = { +static struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = { .name = "LG TDVS-H06xF", .min = 54000000, .max = 863000000, @@ -265,23 +279,25 @@ struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = { { 999999999, 62500, 0xce, 0x04 }, }, }; -EXPORT_SYMBOL(dvb_pll_lg_tdvs_h06xf); /* Philips FMD1216ME * used in Medion Hybrid PCMCIA card and USB Box */ -static void fmd1216me_bw(u8 *buf, u32 freq, int bandwidth) +static void fmd1216me_bw(u8 *buf, const struct dvb_frontend_parameters *params) { - if (bandwidth == BANDWIDTH_8_MHZ && freq >= 158870000) + if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ && + params->frequency >= 158870000) buf[3] |= 0x08; } -struct dvb_pll_desc dvb_pll_fmd1216me = { +static struct dvb_pll_desc dvb_pll_fmd1216me = { .name = "Philips FMD1216ME", .min = 50870000, .max = 858000000, .iffreq= 36125000, - .setbw = fmd1216me_bw, + .set = fmd1216me_bw, + .initdata = tua603x_agc112, + .sleepdata = (u8[]){ 4, 0x9c, 0x60, 0x85, 0x54 }, .count = 7, .entries = { { 143870000, 166667, 0xbc, 0x41 }, @@ -293,23 +309,22 @@ struct dvb_pll_desc dvb_pll_fmd1216me = { { 999999999, 166667, 0xfc, 0x44 }, } }; -EXPORT_SYMBOL(dvb_pll_fmd1216me); /* ALPS TDED4 * used in Nebula-Cards and USB boxes */ -static void tded4_bw(u8 *buf, u32 freq, int bandwidth) +static void tded4_bw(u8 *buf, const struct dvb_frontend_parameters *params) { - if (bandwidth == BANDWIDTH_8_MHZ) + if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) buf[3] |= 0x04; } -struct dvb_pll_desc dvb_pll_tded4 = { +static struct dvb_pll_desc dvb_pll_tded4 = { .name = "ALPS TDED4", .min = 47000000, .max = 863000000, .iffreq= 36166667, - .setbw = tded4_bw, + .set = tded4_bw, .count = 4, .entries = { { 153000000, 166667, 0x85, 0x01 }, @@ -318,12 +333,11 @@ struct dvb_pll_desc dvb_pll_tded4 = { { 999999999, 166667, 0x85, 0x88 }, } }; -EXPORT_SYMBOL(dvb_pll_tded4); /* ALPS TDHU2 * used in AverTVHD MCE A180 */ -struct dvb_pll_desc dvb_pll_tdhu2 = { +static struct dvb_pll_desc dvb_pll_tdhu2 = { .name = "ALPS TDHU2", .min = 54000000, .max = 864000000, @@ -336,16 +350,29 @@ struct dvb_pll_desc dvb_pll_tdhu2 = { { 999999999, 62500, 0x85, 0x88 }, } }; -EXPORT_SYMBOL(dvb_pll_tdhu2); /* Philips TUV1236D * used in ATI HDTV Wonder */ -struct dvb_pll_desc dvb_pll_tuv1236d = { +static void tuv1236d_rf(u8 *buf, const struct dvb_frontend_parameters *params) +{ + switch (params->u.vsb.modulation) { + case QAM_64: + case QAM_256: + buf[3] |= 0x08; + break; + case VSB_8: + default: + buf[3] &= ~0x08; + } +} + +static struct dvb_pll_desc dvb_pll_tuv1236d = { .name = "Philips TUV1236D", .min = 54000000, .max = 864000000, .iffreq= 44000000, + .set = tuv1236d_rf, .count = 3, .entries = { { 157250000, 62500, 0xc6, 0x41 }, @@ -353,12 +380,11 @@ struct dvb_pll_desc dvb_pll_tuv1236d = { { 999999999, 62500, 0xc6, 0x44 }, }, }; -EXPORT_SYMBOL(dvb_pll_tuv1236d); /* Samsung TBMV30111IN / TBMV30712IN1 * used in Air2PC ATSC - 2nd generation (nxt2002) */ -struct dvb_pll_desc dvb_pll_samsung_tbmv = { +static struct dvb_pll_desc dvb_pll_samsung_tbmv = { .name = "Samsung TBMV30111IN / TBMV30712IN1", .min = 54000000, .max = 860000000, @@ -373,12 +399,11 @@ struct dvb_pll_desc dvb_pll_samsung_tbmv = { { 999999999, 166667, 0xfc, 0x02 }, } }; -EXPORT_SYMBOL(dvb_pll_samsung_tbmv); /* * Philips SD1878 Tuner. */ -struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = { +static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = { .name = "Philips SD1878", .min = 950000, .max = 2150000, @@ -391,19 +416,18 @@ struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = { { 2150000, 500, 0xc4, 0xc0}, }, }; -EXPORT_SYMBOL(dvb_pll_philips_sd1878_tda8261); /* * Philips TD1316 Tuner. */ -static void td1316_bw(u8 *buf, u32 freq, int bandwidth) +static void td1316_bw(u8 *buf, const struct dvb_frontend_parameters *params) { u8 band; /* determine band */ - if (freq < 161000000) + if (params->frequency < 161000000) band = 1; - else if (freq < 444000000) + else if (params->frequency < 444000000) band = 2; else band = 4; @@ -411,16 +435,16 @@ static void td1316_bw(u8 *buf, u32 freq, int bandwidth) buf[3] |= band; /* setup PLL filter */ - if (bandwidth == BANDWIDTH_8_MHZ) + if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) buf[3] |= 1 << 3; } -struct dvb_pll_desc dvb_pll_philips_td1316 = { +static struct dvb_pll_desc dvb_pll_philips_td1316 = { .name = "Philips TD1316", .min = 87000000, .max = 895000000, .iffreq= 36166667, - .setbw = td1316_bw, + .set = td1316_bw, .count = 9, .entries = { { 93834000, 166667, 0xca, 0x60}, @@ -434,10 +458,9 @@ struct dvb_pll_desc dvb_pll_philips_td1316 = { { 858834000, 166667, 0xca, 0xe0}, }, }; -EXPORT_SYMBOL(dvb_pll_philips_td1316); /* FE6600 used on DViCO Hybrid */ -struct dvb_pll_desc dvb_pll_thomson_fe6600 = { +static struct dvb_pll_desc dvb_pll_thomson_fe6600 = { .name = "Thomson FE6600", .min = 44250000, .max = 858000000, @@ -450,19 +473,19 @@ struct dvb_pll_desc dvb_pll_thomson_fe6600 = { { 999999999, 166667, 0xf4, 0x18 }, } }; -EXPORT_SYMBOL(dvb_pll_thomson_fe6600); -static void opera1_bw(u8 *buf, u32 freq, int bandwidth) + +static void opera1_bw(u8 *buf, const struct dvb_frontend_parameters *params) { - if (bandwidth == BANDWIDTH_8_MHZ) + if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) buf[2] |= 0x08; } -struct dvb_pll_desc dvb_pll_opera1 = { +static struct dvb_pll_desc dvb_pll_opera1 = { .name = "Opera Tuner", .min = 900000, .max = 2250000, .iffreq= 0, - .setbw = opera1_bw, + .set = opera1_bw, .count = 8, .entries = { { 1064000, 500, 0xe5, 0xc6 }, @@ -475,7 +498,54 @@ struct dvb_pll_desc dvb_pll_opera1 = { { 2250000, 500, 0xe5, 0xc4 }, } }; -EXPORT_SYMBOL(dvb_pll_opera1); + +/* Philips FCV1236D + */ +struct dvb_pll_desc dvb_pll_fcv1236d = { +/* Bit_0: RF Input select + * Bit_1: 0=digital, 1=analog + */ + .name = "Philips FCV1236D", + .min = 53000000, + .max = 803000000, + .iffreq= 44000000, + .count = 3, + .entries = { + { 159000000, 62500, 0x8e, 0xa0 }, + { 453000000, 62500, 0x8e, 0x90 }, + { 999999999, 62500, 0x8e, 0x30 }, + }, +}; + +/* ----------------------------------------------------------- */ + +static struct dvb_pll_desc *pll_list[] = { + [DVB_PLL_UNDEFINED] = NULL, + [DVB_PLL_THOMSON_DTT7579] = &dvb_pll_thomson_dtt7579, + [DVB_PLL_THOMSON_DTT759X] = &dvb_pll_thomson_dtt759x, + [DVB_PLL_THOMSON_DTT7610] = &dvb_pll_thomson_dtt7610, + [DVB_PLL_LG_Z201] = &dvb_pll_lg_z201, + [DVB_PLL_MICROTUNE_4042] = &dvb_pll_microtune_4042, + [DVB_PLL_THOMSON_DTT761X] = &dvb_pll_thomson_dtt761x, + [DVB_PLL_UNKNOWN_1] = &dvb_pll_unknown_1, + [DVB_PLL_TUA6010XS] = &dvb_pll_tua6010xs, + [DVB_PLL_ENV57H1XD5] = &dvb_pll_env57h1xd5, + [DVB_PLL_TUA6034] = &dvb_pll_tua6034, + [DVB_PLL_LG_TDVS_H06XF] = &dvb_pll_lg_tdvs_h06xf, + [DVB_PLL_TDA665X] = &dvb_pll_tda665x, + [DVB_PLL_FMD1216ME] = &dvb_pll_fmd1216me, + [DVB_PLL_TDED4] = &dvb_pll_tded4, + [DVB_PLL_TUV1236D] = &dvb_pll_tuv1236d, + [DVB_PLL_TDHU2] = &dvb_pll_tdhu2, + [DVB_PLL_SAMSUNG_TBMV] = &dvb_pll_samsung_tbmv, + [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261, + [DVB_PLL_PHILIPS_TD1316] = &dvb_pll_philips_td1316, + [DVB_PLL_THOMSON_FE6600] = &dvb_pll_thomson_fe6600, + [DVB_PLL_OPERA1] = &dvb_pll_opera1, + [DVB_PLL_FCV1236D] = &dvb_pll_fcv1236d, +}; + +/* ----------------------------------------------------------- */ struct dvb_pll_priv { /* i2c details */ @@ -497,35 +567,37 @@ static int debug = 0; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "enable verbose debug messages"); -int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf, - u32 freq, int bandwidth) +static int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf, + const struct dvb_frontend_parameters *params) { u32 div; int i; - if (freq != 0 && (freq < desc->min || freq > desc->max)) - return -EINVAL; + if (params->frequency != 0 && (params->frequency < desc->min || + params->frequency > desc->max)) + return -EINVAL; for (i = 0; i < desc->count; i++) { - if (freq > desc->entries[i].limit) + if (params->frequency > desc->entries[i].limit) continue; break; } + if (debug) - printk("pll: %s: freq=%d bw=%d | i=%d/%d\n", - desc->name, freq, bandwidth, i, desc->count); + printk("pll: %s: freq=%d | i=%d/%d\n", desc->name, + params->frequency, i, desc->count); if (i == desc->count) return -EINVAL; - div = (freq + desc->iffreq + desc->entries[i].stepsize/2) / - desc->entries[i].stepsize; + div = (params->frequency + desc->iffreq + + desc->entries[i].stepsize/2) / desc->entries[i].stepsize; buf[0] = div >> 8; buf[1] = div & 0xff; buf[2] = desc->entries[i].config; buf[3] = desc->entries[i].cb; - if (desc->setbw) - desc->setbw(buf, freq, bandwidth); + if (desc->set) + desc->set(buf, params); if (debug) printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n", @@ -534,7 +606,6 @@ int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf, // calculate the frequency we set it to return (div * desc->entries[i].stepsize) - desc->iffreq; } -EXPORT_SYMBOL(dvb_pll_configure); static int dvb_pll_release(struct dvb_frontend *fe) { @@ -578,18 +649,12 @@ static int dvb_pll_set_params(struct dvb_frontend *fe, { .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) }; int result; - u32 bandwidth = 0, frequency = 0; + u32 frequency = 0; if (priv->i2c == NULL) return -EINVAL; - // DVBT bandwidth only just now - if (fe->ops.info.type == FE_OFDM) { - bandwidth = params->u.ofdm.bandwidth; - } - - if ((result = dvb_pll_configure(priv->pll_desc, buf, - params->frequency, bandwidth)) < 0) + if ((result = dvb_pll_configure(priv->pll_desc, buf, params)) < 0) return result; else frequency = result; @@ -601,7 +666,7 @@ static int dvb_pll_set_params(struct dvb_frontend *fe, } priv->frequency = frequency; - priv->bandwidth = bandwidth; + priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; return 0; } @@ -612,18 +677,12 @@ static int dvb_pll_calc_regs(struct dvb_frontend *fe, { struct dvb_pll_priv *priv = fe->tuner_priv; int result; - u32 bandwidth = 0, frequency = 0; + u32 frequency = 0; if (buf_len < 5) return -EINVAL; - // DVBT bandwidth only just now - if (fe->ops.info.type == FE_OFDM) { - bandwidth = params->u.ofdm.bandwidth; - } - - if ((result = dvb_pll_configure(priv->pll_desc, buf+1, - params->frequency, bandwidth)) < 0) + if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params)) < 0) return result; else frequency = result; @@ -631,7 +690,7 @@ static int dvb_pll_calc_regs(struct dvb_frontend *fe, buf[0] = priv->pll_i2c_address; priv->frequency = frequency; - priv->bandwidth = bandwidth; + priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; return 5; } @@ -687,13 +746,18 @@ static struct dvb_tuner_ops dvb_pll_tuner_ops = { struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, struct i2c_adapter *i2c, - struct dvb_pll_desc *desc) + unsigned int pll_desc_id) { u8 b1 [] = { 0 }; struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD, .buf = b1, .len = 1 }; struct dvb_pll_priv *priv = NULL; int ret; + struct dvb_pll_desc *desc; + + BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list)); + + desc = pll_list[pll_desc_id]; if (i2c != NULL) { if (fe->ops.i2c_gate_ctrl) diff --git a/drivers/media/dvb/frontends/dvb-pll.h b/drivers/media/dvb/frontends/dvb-pll.h index 5209f46f0893..e93a8104052b 100644 --- a/drivers/media/dvb/frontends/dvb-pll.h +++ b/drivers/media/dvb/frontends/dvb-pll.h @@ -8,50 +8,29 @@ #include <linux/i2c.h> #include "dvb_frontend.h" -struct dvb_pll_desc { - char *name; - u32 min; - u32 max; - u32 iffreq; - void (*setbw)(u8 *buf, u32 freq, int bandwidth); - u8 *initdata; - u8 *sleepdata; - int count; - struct { - u32 limit; - u32 stepsize; - u8 config; - u8 cb; - } entries[12]; -}; - -extern struct dvb_pll_desc dvb_pll_thomson_dtt7579; -extern struct dvb_pll_desc dvb_pll_thomson_dtt759x; -extern struct dvb_pll_desc dvb_pll_thomson_dtt7610; -extern struct dvb_pll_desc dvb_pll_lg_z201; -extern struct dvb_pll_desc dvb_pll_microtune_4042; -extern struct dvb_pll_desc dvb_pll_thomson_dtt761x; -extern struct dvb_pll_desc dvb_pll_unknown_1; - -extern struct dvb_pll_desc dvb_pll_tua6010xs; -extern struct dvb_pll_desc dvb_pll_env57h1xd5; -extern struct dvb_pll_desc dvb_pll_tua6034; -extern struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf; -extern struct dvb_pll_desc dvb_pll_tda665x; -extern struct dvb_pll_desc dvb_pll_fmd1216me; -extern struct dvb_pll_desc dvb_pll_tded4; - -extern struct dvb_pll_desc dvb_pll_tuv1236d; -extern struct dvb_pll_desc dvb_pll_tdhu2; -extern struct dvb_pll_desc dvb_pll_samsung_tbmv; -extern struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261; -extern struct dvb_pll_desc dvb_pll_philips_td1316; - -extern struct dvb_pll_desc dvb_pll_thomson_fe6600; -extern struct dvb_pll_desc dvb_pll_opera1; - -extern int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf, - u32 freq, int bandwidth); +#define DVB_PLL_UNDEFINED 0 +#define DVB_PLL_THOMSON_DTT7579 1 +#define DVB_PLL_THOMSON_DTT759X 2 +#define DVB_PLL_THOMSON_DTT7610 3 +#define DVB_PLL_LG_Z201 4 +#define DVB_PLL_MICROTUNE_4042 5 +#define DVB_PLL_THOMSON_DTT761X 6 +#define DVB_PLL_UNKNOWN_1 7 +#define DVB_PLL_TUA6010XS 8 +#define DVB_PLL_ENV57H1XD5 9 +#define DVB_PLL_TUA6034 10 +#define DVB_PLL_LG_TDVS_H06XF 11 +#define DVB_PLL_TDA665X 12 +#define DVB_PLL_FMD1216ME 13 +#define DVB_PLL_TDED4 14 +#define DVB_PLL_TUV1236D 15 +#define DVB_PLL_TDHU2 16 +#define DVB_PLL_SAMSUNG_TBMV 17 +#define DVB_PLL_PHILIPS_SD1878_TDA8261 18 +#define DVB_PLL_PHILIPS_TD1316 19 +#define DVB_PLL_THOMSON_FE6600 20 +#define DVB_PLL_OPERA1 21 +#define DVB_PLL_FCV1236D 22 /** * Attach a dvb-pll to the supplied frontend structure. @@ -59,19 +38,19 @@ extern int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf, * @param fe Frontend to attach to. * @param pll_addr i2c address of the PLL (if used). * @param i2c i2c adapter to use (set to NULL if not used). - * @param desc dvb_pll_desc to use. + * @param pll_desc_id dvb_pll_desc to use. * @return Frontend pointer on success, NULL on failure */ #if defined(CONFIG_DVB_PLL) || (defined(CONFIG_DVB_PLL_MODULE) && defined(MODULE)) extern struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, struct i2c_adapter *i2c, - struct dvb_pll_desc *desc); + unsigned int pll_desc_id); #else static inline struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, struct i2c_adapter *i2c, - struct dvb_pll_desc *desc) + unsigned int pll_desc_id) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__); return NULL; diff --git a/drivers/media/dvb/frontends/nxt200x.c b/drivers/media/dvb/frontends/nxt200x.c index b809f83d9563..ddc84899cf86 100644 --- a/drivers/media/dvb/frontends/nxt200x.c +++ b/drivers/media/dvb/frontends/nxt200x.c @@ -49,7 +49,6 @@ #include <linux/string.h> #include "dvb_frontend.h" -#include "dvb-pll.h" #include "nxt200x.h" struct nxt200x_state { @@ -546,11 +545,6 @@ static int nxt200x_setup_frontend_parameters (struct dvb_frontend* fe, nxt200x_writebytes(state, 0x17, buf, 1); } - /* get tuning information */ - if (fe->ops.tuner_ops.calc_regs) { - fe->ops.tuner_ops.calc_regs(fe, p, buf, 5); - } - /* set additional params */ switch (p->u.vsb.modulation) { case QAM_64: @@ -559,27 +553,24 @@ static int nxt200x_setup_frontend_parameters (struct dvb_frontend* fe, /* This is just a guess since I am unable to test it */ if (state->config->set_ts_params) state->config->set_ts_params(fe, 1); - - /* set input */ - if (state->config->set_pll_input) - state->config->set_pll_input(buf+1, 1); break; case VSB_8: /* Set non-punctured clock for VSB */ if (state->config->set_ts_params) state->config->set_ts_params(fe, 0); - - /* set input */ - if (state->config->set_pll_input) - state->config->set_pll_input(buf+1, 0); break; default: return -EINVAL; break; } - /* write frequency information */ - nxt200x_writetuner(state, buf); + if (fe->ops.tuner_ops.calc_regs) { + /* get tuning information */ + fe->ops.tuner_ops.calc_regs(fe, p, buf, 5); + + /* write frequency information */ + nxt200x_writetuner(state, buf); + } /* reset the agc now that tuning has been completed */ nxt200x_agc_reset(state); diff --git a/drivers/media/dvb/frontends/nxt200x.h b/drivers/media/dvb/frontends/nxt200x.h index 28bc5591b319..bb0ef58d7972 100644 --- a/drivers/media/dvb/frontends/nxt200x.h +++ b/drivers/media/dvb/frontends/nxt200x.h @@ -38,9 +38,6 @@ struct nxt200x_config /* the demodulator's i2c address */ u8 demod_address; - /* used to set pll input */ - int (*set_pll_input)(u8* buf, int input); - /* need to set device param for start_dma */ int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); }; diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c index 4e0aca7c67aa..3cc8b444b8f2 100644 --- a/drivers/media/dvb/frontends/or51132.c +++ b/drivers/media/dvb/frontends/or51132.c @@ -45,7 +45,6 @@ #include "dvb_math.h" #include "dvb_frontend.h" -#include "dvb-pll.h" #include "or51132.h" static int debug; diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c index 048d7cfe12d3..f46d5a46683a 100644 --- a/drivers/media/dvb/frontends/or51211.c +++ b/drivers/media/dvb/frontends/or51211.c @@ -223,38 +223,13 @@ static int or51211_set_parameters(struct dvb_frontend* fe, struct dvb_frontend_parameters *param) { struct or51211_state* state = fe->demodulator_priv; - u32 freq = 0; - u16 tunerfreq = 0; - u8 buf[4]; /* Change only if we are actually changing the channel */ if (state->current_frequency != param->frequency) { - freq = 44000 + (param->frequency/1000); - tunerfreq = freq * 16/1000; - - dprintk("set_parameters frequency = %d (tunerfreq = %d)\n", - param->frequency,tunerfreq); - - buf[0] = (tunerfreq >> 8) & 0x7F; - buf[1] = (tunerfreq & 0xFF); - buf[2] = 0x8E; - - if (param->frequency < 157250000) { - buf[3] = 0xA0; - dprintk("set_parameters VHF low range\n"); - } else if (param->frequency < 454000000) { - buf[3] = 0x90; - dprintk("set_parameters VHF high range\n"); - } else { - buf[3] = 0x30; - dprintk("set_parameters UHF range\n"); + if (fe->ops.tuner_ops.set_params) { + fe->ops.tuner_ops.set_params(fe, param); + if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); } - dprintk("set_parameters tuner bytes: 0x%02x 0x%02x " - "0x%02x 0x%02x\n",buf[0],buf[1],buf[2],buf[3]); - - if (i2c_writebytes(state,0xC2>>1,buf,4)) - printk(KERN_WARNING "or51211:set_parameters error " - "writing to tuner\n"); /* Set to ATSC mode */ or51211_setmode(fe,0); diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c index 18768d2f6d40..6c607302c1b6 100644 --- a/drivers/media/dvb/frontends/stv0299.c +++ b/drivers/media/dvb/frontends/stv0299.c @@ -249,7 +249,7 @@ static int stv0299_get_symbolrate (struct stv0299_state* state) dprintk ("%s\n", __FUNCTION__); stv0299_readregs (state, 0x1f, sfr, 3); - stv0299_readregs (state, 0x1a, &rtf, 1); + stv0299_readregs (state, 0x1a, (u8 *)&rtf, 1); srate = (sfr[0] << 8) | sfr[1]; srate *= Mclk; diff --git a/drivers/media/dvb/frontends/tda10023.c b/drivers/media/dvb/frontends/tda10023.c index da796e784be3..4bb06f97938b 100644 --- a/drivers/media/dvb/frontends/tda10023.c +++ b/drivers/media/dvb/frontends/tda10023.c @@ -478,7 +478,7 @@ struct dvb_frontend* tda10023_attach(const struct tda1002x_config* config, state->i2c = i2c; memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops)); state->pwm = pwm; - for (i=0; i < sizeof(tda10023_inittab)/sizeof(*tda10023_inittab);i+=3) { + for (i=0; i < ARRAY_SIZE(tda10023_inittab);i+=3) { if (tda10023_inittab[i] == 0x00) { state->reg0 = tda10023_inittab[i+2]; break; diff --git a/drivers/media/dvb/pluto2/Makefile b/drivers/media/dvb/pluto2/Makefile index ce6a9aaf937e..7ac128724df8 100644 --- a/drivers/media/dvb/pluto2/Makefile +++ b/drivers/media/dvb/pluto2/Makefile @@ -1,3 +1,3 @@ obj-$(CONFIG_DVB_PLUTO2) += pluto2.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ diff --git a/drivers/media/dvb/ttpci/Kconfig b/drivers/media/dvb/ttpci/Kconfig index 7751628e1415..6d53289b3276 100644 --- a/drivers/media/dvb/ttpci/Kconfig +++ b/drivers/media/dvb/ttpci/Kconfig @@ -108,7 +108,7 @@ config DVB_BUDGET_AV tristate "Budget cards with analog video inputs" depends on DVB_CORE && PCI && I2C && VIDEO_V4L1 select VIDEO_SAA7146_VV - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_STV0299 if !DVB_FE_CUSTOMISE select DVB_TDA1004X if !DVB_FE_CUSTOMISE select DVB_TDA10021 if !DVB_FE_CUSTOMISE diff --git a/drivers/media/dvb/ttpci/Makefile b/drivers/media/dvb/ttpci/Makefile index aa85ecdc6c80..2c1145236ee6 100644 --- a/drivers/media/dvb/ttpci/Makefile +++ b/drivers/media/dvb/ttpci/Makefile @@ -11,7 +11,7 @@ obj-$(CONFIG_DVB_BUDGET_CI) += budget-core.o budget-ci.o ttpci-eeprom.o obj-$(CONFIG_DVB_BUDGET_PATCH) += budget-core.o budget-patch.o ttpci-eeprom.o obj-$(CONFIG_DVB_AV7110) += dvb-ttpci.o ttpci-eeprom.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ hostprogs-y := fdump diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c index ef1108c0bf11..2cee9e3bd29f 100644 --- a/drivers/media/dvb/ttpci/av7110.c +++ b/drivers/media/dvb/ttpci/av7110.c @@ -137,6 +137,15 @@ static void init_av7110_av(struct av7110 *av7110) if (ret < 0) printk("dvb-ttpci:cannot set internal volume to maximum:%d\n",ret); + ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType, + 1, (u16) av7110->display_ar); + if (ret < 0) + printk("dvb-ttpci: unable to set aspect ratio\n"); + ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType, + 1, av7110->display_panscan); + if (ret < 0) + printk("dvb-ttpci: unable to set pan scan\n"); + ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetWSSConfig, 2, 2, wss_cfg_4_3); if (ret < 0) printk("dvb-ttpci: unable to configure 4:3 wss\n"); @@ -2639,12 +2648,12 @@ static int __devinit av7110_attach(struct saa7146_dev* dev, av7110->mixer.volume_left = volume; av7110->mixer.volume_right = volume; - init_av7110_av(av7110); - ret = av7110_register(av7110); if (ret < 0) goto err_arm_thread_stop_10; + init_av7110_av(av7110); + /* special case DVB-C: these cards have an analog tuner plus need some special handling, so we have separate saa7146_ext_vv data for these... */ diff --git a/drivers/media/dvb/ttpci/av7110.h b/drivers/media/dvb/ttpci/av7110.h index 115002b0390c..0cb439527498 100644 --- a/drivers/media/dvb/ttpci/av7110.h +++ b/drivers/media/dvb/ttpci/av7110.h @@ -194,6 +194,7 @@ struct av7110 { int video_blank; struct video_status videostate; + u16 display_panscan; int display_ar; int trickmode; #define TRICK_NONE 0 diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c index 58678c05aa53..d75e7e48addc 100644 --- a/drivers/media/dvb/ttpci/av7110_av.c +++ b/drivers/media/dvb/ttpci/av7110_av.c @@ -391,7 +391,7 @@ static int get_video_format(struct av7110 *av7110, u8 *buf, int count) ****************************************************************************/ static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf, - const char *buf, unsigned long count) + const u8 *buf, unsigned long count) { unsigned long todo = count; int free; @@ -436,7 +436,7 @@ static void play_audio_cb(u8 *buf, int count, void *priv) #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \ dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024) -static ssize_t dvb_play(struct av7110 *av7110, const u8 __user *buf, +static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf, unsigned long count, int nonblock, int type) { unsigned long todo = count, n; @@ -499,7 +499,7 @@ static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf, return count - todo; } -static ssize_t dvb_aplay(struct av7110 *av7110, const u8 __user *buf, +static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf, unsigned long count, int nonblock, int type) { unsigned long todo = count, n; @@ -959,7 +959,7 @@ static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x #define MIN_IFRAME 400000 -static int play_iframe(struct av7110 *av7110, u8 __user *buf, unsigned int len, int nonblock) +static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock) { int i, n; @@ -1082,19 +1082,18 @@ static int dvb_video_ioctl(struct inode *inode, struct file *file, case VIDEO_SET_DISPLAY_FORMAT: { video_displayformat_t format = (video_displayformat_t) arg; - u16 val = 0; switch (format) { case VIDEO_PAN_SCAN: - val = VID_PAN_SCAN_PREF; + av7110->display_panscan = VID_PAN_SCAN_PREF; break; case VIDEO_LETTER_BOX: - val = VID_VC_AND_PS_PREF; + av7110->display_panscan = VID_VC_AND_PS_PREF; break; case VIDEO_CENTER_CUT_OUT: - val = VID_CENTRE_CUT_PREF; + av7110->display_panscan = VID_CENTRE_CUT_PREF; break; default: @@ -1104,7 +1103,7 @@ static int dvb_video_ioctl(struct inode *inode, struct file *file, break; av7110->videostate.display_format = format; ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType, - 1, (u16) val); + 1, av7110->display_panscan); break; } @@ -1466,8 +1465,9 @@ int av7110_av_register(struct av7110 *av7110) av7110->videostate.play_state = VIDEO_STOPPED; av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX; av7110->videostate.video_format = VIDEO_FORMAT_4_3; - av7110->videostate.display_format = VIDEO_CENTER_CUT_OUT; + av7110->videostate.display_format = VIDEO_LETTER_BOX; av7110->display_ar = VIDEO_FORMAT_4_3; + av7110->display_panscan = VID_VC_AND_PS_PREF; init_waitqueue_head(&av7110->video_events.wait_queue); spin_lock_init(&av7110->video_events.lock); diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c index e1c1294bb767..c58e3fc509ed 100644 --- a/drivers/media/dvb/ttpci/av7110_ca.c +++ b/drivers/media/dvb/ttpci/av7110_ca.c @@ -151,7 +151,7 @@ static ssize_t ci_ll_write(struct dvb_ringbuffer *cibuf, struct file *file, { int free; int non_blocking = file->f_flags & O_NONBLOCK; - char *page = (char *)__get_free_page(GFP_USER); + u8 *page = (u8 *)__get_free_page(GFP_USER); int res; if (!page) @@ -208,7 +208,7 @@ static ssize_t ci_ll_read(struct dvb_ringbuffer *cibuf, struct file *file, return -EINVAL; DVB_RINGBUFFER_SKIP(cibuf, 2); - return dvb_ringbuffer_read(cibuf, buf, len, 1); + return dvb_ringbuffer_read(cibuf, (u8 *)buf, len, 1); } static int dvb_ca_open(struct inode *inode, struct file *file) diff --git a/drivers/media/dvb/ttpci/av7110_hw.c b/drivers/media/dvb/ttpci/av7110_hw.c index 70aee4eb5da4..515e8232e020 100644 --- a/drivers/media/dvb/ttpci/av7110_hw.c +++ b/drivers/media/dvb/ttpci/av7110_hw.c @@ -158,7 +158,7 @@ static int load_dram(struct av7110 *av7110, u32 *data, int len) } dprintk(4, "writing DRAM block %d\n", i); mwdebi(av7110, DEBISWAB, bootblock, - ((char*)data) + i * AV7110_BOOT_MAX_SIZE, AV7110_BOOT_MAX_SIZE); + ((u8 *)data) + i * AV7110_BOOT_MAX_SIZE, AV7110_BOOT_MAX_SIZE); bootblock ^= 0x1400; iwdebi(av7110, DEBISWAB, AV7110_BOOT_BASE, swab32(base), 4); iwdebi(av7110, DEBINOSWAP, AV7110_BOOT_SIZE, AV7110_BOOT_MAX_SIZE, 2); @@ -173,10 +173,10 @@ static int load_dram(struct av7110 *av7110, u32 *data, int len) } if (rest > 4) mwdebi(av7110, DEBISWAB, bootblock, - ((char*)data) + i * AV7110_BOOT_MAX_SIZE, rest); + ((u8 *)data) + i * AV7110_BOOT_MAX_SIZE, rest); else mwdebi(av7110, DEBISWAB, bootblock, - ((char*)data) + i * AV7110_BOOT_MAX_SIZE - 4, rest + 4); + ((u8 *)data) + i * AV7110_BOOT_MAX_SIZE - 4, rest + 4); iwdebi(av7110, DEBISWAB, AV7110_BOOT_BASE, swab32(base), 4); iwdebi(av7110, DEBINOSWAP, AV7110_BOOT_SIZE, rest, 2); @@ -751,7 +751,7 @@ static int FlushText(struct av7110 *av7110) return 0; } -static int WriteText(struct av7110 *av7110, u8 win, u16 x, u16 y, u8* buf) +static int WriteText(struct av7110 *av7110, u8 win, u16 x, u16 y, char *buf) { int i, ret; unsigned long start; diff --git a/drivers/media/dvb/ttpci/av7110_hw.h b/drivers/media/dvb/ttpci/av7110_hw.h index 673d9b3f064c..74d940f75da6 100644 --- a/drivers/media/dvb/ttpci/av7110_hw.h +++ b/drivers/media/dvb/ttpci/av7110_hw.h @@ -393,7 +393,7 @@ static inline void iwdebi(struct av7110 *av7110, u32 config, int addr, u32 val, } /* buffer writes */ -static inline void mwdebi(struct av7110 *av7110, u32 config, int addr, char *val, int count) +static inline void mwdebi(struct av7110 *av7110, u32 config, int addr, u8 *val, int count) { memcpy(av7110->debi_virt, val, count); av7110_debiwrite(av7110, config, addr, 0, count); diff --git a/drivers/media/dvb/ttpci/av7110_ir.c b/drivers/media/dvb/ttpci/av7110_ir.c index a97f166bb523..6322800ee12b 100644 --- a/drivers/media/dvb/ttpci/av7110_ir.c +++ b/drivers/media/dvb/ttpci/av7110_ir.c @@ -356,7 +356,7 @@ int __devinit av7110_ir_init(struct av7110 *av7110) input_dev->id.vendor = av7110->dev->pci->vendor; input_dev->id.product = av7110->dev->pci->device; } - input_dev->cdev.dev = &av7110->dev->pci->dev; + input_dev->dev.parent = &av7110->dev->pci->dev; /* initial keymap */ memcpy(av7110->ir.key_map, default_key_map, sizeof av7110->ir.key_map); input_register_keys(&av7110->ir); diff --git a/drivers/media/dvb/ttpci/av7110_v4l.c b/drivers/media/dvb/ttpci/av7110_v4l.c index fcd9994058d0..87afaebc0703 100644 --- a/drivers/media/dvb/ttpci/av7110_v4l.c +++ b/drivers/media/dvb/ttpci/av7110_v4l.c @@ -333,7 +333,7 @@ static int av7110_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg) return -EINVAL; memset(t, 0, sizeof(*t)); - strcpy(t->name, "Television"); + strcpy((char *)t->name, "Television"); t->type = V4L2_TUNER_ANALOG_TV; t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO | diff --git a/drivers/media/dvb/ttpci/budget-av.c b/drivers/media/dvb/ttpci/budget-av.c index 0e817d6f1ce5..0aee7a13a070 100644 --- a/drivers/media/dvb/ttpci/budget-av.c +++ b/drivers/media/dvb/ttpci/budget-av.c @@ -828,29 +828,6 @@ static u8 philips_sd1878_inittab[] = { 0xff, 0xff }; -static int philips_sd1878_tda8261_tuner_set_params(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params) -{ - u8 buf[4]; - int rc; - struct i2c_msg tuner_msg = {.addr=0x60,.flags=0,.buf=buf,.len=sizeof(buf)}; - struct budget *budget = (struct budget *) fe->dvb->priv; - - if((params->frequency < 950000) || (params->frequency > 2150000)) - return -EINVAL; - - rc=dvb_pll_configure(&dvb_pll_philips_sd1878_tda8261, buf, - params->frequency, 0); - if(rc < 0) return rc; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if(i2c_transfer(&budget->i2c_adap, &tuner_msg, 1) != 1) - return -EIO; - - return 0; -} - static int philips_sd1878_ci_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio) { @@ -921,6 +898,7 @@ static u8 read_pwm(struct budget_av *budget_av) #define SUBID_DVBS_TV_STAR 0x0014 #define SUBID_DVBS_TV_STAR_CI 0x0016 #define SUBID_DVBS_EASYWATCH_1 0x001a +#define SUBID_DVBS_EASYWATCH_2 0x001b #define SUBID_DVBS_EASYWATCH 0x001e #define SUBID_DVBC_EASYWATCH 0x002a @@ -982,10 +960,13 @@ static void frontend_init(struct budget_av *budget_av) case SUBID_DVBS_TV_STAR_CI: case SUBID_DVBS_CYNERGY1200N: case SUBID_DVBS_EASYWATCH: + case SUBID_DVBS_EASYWATCH_2: fe = dvb_attach(stv0299_attach, &philips_sd1878_config, &budget_av->budget.i2c_adap); if (fe) { - fe->ops.tuner_ops.set_params = philips_sd1878_tda8261_tuner_set_params; + dvb_attach(dvb_pll_attach, fe, 0x60, + &budget_av->budget.i2c_adap, + DVB_PLL_PHILIPS_SD1878_TDA8261); } break; @@ -1264,6 +1245,7 @@ MAKE_BUDGET_INFO(knc1t, "KNC1 DVB-T", BUDGET_KNC1T); MAKE_BUDGET_INFO(kncxs, "KNC TV STAR DVB-S", BUDGET_TVSTAR); MAKE_BUDGET_INFO(satewpls, "Satelco EasyWatch DVB-S light", BUDGET_TVSTAR); MAKE_BUDGET_INFO(satewpls1, "Satelco EasyWatch DVB-S light", BUDGET_KNC1S); +MAKE_BUDGET_INFO(satewps, "Satelco EasyWatch DVB-S", BUDGET_KNC1S); MAKE_BUDGET_INFO(satewplc, "Satelco EasyWatch DVB-C", BUDGET_KNC1CP); MAKE_BUDGET_INFO(satewcmk3, "Satelco EasyWatch DVB-C MK3", BUDGET_KNC1C_MK3); MAKE_BUDGET_INFO(knc1sp, "KNC1 DVB-S Plus", BUDGET_KNC1SP); @@ -1287,6 +1269,7 @@ static struct pci_device_id pci_tbl[] = { MAKE_EXTENSION_PCI(kncxs, 0x1894, 0x0016), MAKE_EXTENSION_PCI(satewpls, 0x1894, 0x001e), MAKE_EXTENSION_PCI(satewpls1, 0x1894, 0x001a), + MAKE_EXTENSION_PCI(satewps, 0x1894, 0x001b), MAKE_EXTENSION_PCI(satewplc, 0x1894, 0x002a), MAKE_EXTENSION_PCI(satewcmk3, 0x1894, 0x002c), MAKE_EXTENSION_PCI(knc1c, 0x1894, 0x0020), diff --git a/drivers/media/dvb/ttpci/budget-ci.c b/drivers/media/dvb/ttpci/budget-ci.c index 9d42f88ebb0e..873c3ba296f2 100644 --- a/drivers/media/dvb/ttpci/budget-ci.c +++ b/drivers/media/dvb/ttpci/budget-ci.c @@ -206,7 +206,7 @@ static int msp430_ir_init(struct budget_ci *budget_ci) input_dev->id.vendor = saa->pci->vendor; input_dev->id.product = saa->pci->device; } - input_dev->cdev.dev = &saa->pci->dev; + input_dev->dev.parent = &saa->pci->dev; /* Select keymap and address */ switch (budget_ci->budget.dev->pci->subsystem_device) { diff --git a/drivers/media/dvb/ttusb-budget/Makefile b/drivers/media/dvb/ttusb-budget/Makefile index 6ab97f6b53fc..fbe2b9514c21 100644 --- a/drivers/media/dvb/ttusb-budget/Makefile +++ b/drivers/media/dvb/ttusb-budget/Makefile @@ -1,3 +1,3 @@ obj-$(CONFIG_DVB_TTUSB_BUDGET) += dvb-ttusb-budget.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends diff --git a/drivers/media/dvb/ttusb-dec/Makefile b/drivers/media/dvb/ttusb-dec/Makefile index b41bf1f06a9f..2d70a8269391 100644 --- a/drivers/media/dvb/ttusb-dec/Makefile +++ b/drivers/media/dvb/ttusb-dec/Makefile @@ -1,3 +1,3 @@ obj-$(CONFIG_DVB_TTUSB_DEC) += ttusb_dec.o ttusbdecfe.o -EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ +EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig index 194b102140ef..f8bf9fe37d36 100644 --- a/drivers/media/radio/Kconfig +++ b/drivers/media/radio/Kconfig @@ -324,8 +324,8 @@ config RADIO_ZOLTRIX_PORT Enter the I/O port of your Zoltrix radio card. config USB_DSBR - tristate "D-Link USB FM radio support (EXPERIMENTAL)" - depends on USB && VIDEO_V4L2 && EXPERIMENTAL + tristate "D-Link/GemTek USB FM radio support" + depends on USB && VIDEO_V4L2 ---help--- Say Y here if you want to connect this type of radio to your computer's USB port. Note that the audio is not digital, and diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c index 5adc27c3ced9..ce940b1b787f 100644 --- a/drivers/media/radio/radio-aimslab.c +++ b/drivers/media/radio/radio-aimslab.c @@ -392,7 +392,6 @@ static struct video_device rtrack_radio= .owner = THIS_MODULE, .name = "RadioTrack radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &rtrack_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c index 9f1addae6928..9b1f7a99dac0 100644 --- a/drivers/media/radio/radio-aztech.c +++ b/drivers/media/radio/radio-aztech.c @@ -355,7 +355,6 @@ static struct video_device aztech_radio= .owner = THIS_MODULE, .name = "Aztech radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &aztech_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c index 5e6f17df204b..4db05b2b1b6e 100644 --- a/drivers/media/radio/radio-gemtek-pci.c +++ b/drivers/media/radio/radio-gemtek-pci.c @@ -377,7 +377,6 @@ static struct video_device vdev_template = { .owner = THIS_MODULE, .name = "Gemtek PCI Radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &gemtek_pci_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-gemtek.c b/drivers/media/radio/radio-gemtek.c index b04b6a7fff7c..eab8c80a2e47 100644 --- a/drivers/media/radio/radio-gemtek.c +++ b/drivers/media/radio/radio-gemtek.c @@ -330,7 +330,6 @@ static struct video_device gemtek_radio= .owner = THIS_MODULE, .name = "GemTek radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &gemtek_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-rtrack2.c b/drivers/media/radio/radio-rtrack2.c index 9b493b3298cd..82aedfc95d4f 100644 --- a/drivers/media/radio/radio-rtrack2.c +++ b/drivers/media/radio/radio-rtrack2.c @@ -297,7 +297,6 @@ static struct video_device rtrack2_radio= .owner = THIS_MODULE, .name = "RadioTrack II radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &rtrack2_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c index dc33f19c0e2c..395165367f37 100644 --- a/drivers/media/radio/radio-sf16fmi.c +++ b/drivers/media/radio/radio-sf16fmi.c @@ -297,7 +297,6 @@ static struct video_device fmi_radio= .owner = THIS_MODULE, .name = "SF16FMx radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &fmi_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c index e6c125def5cb..c432c44bd634 100644 --- a/drivers/media/radio/radio-sf16fmr2.c +++ b/drivers/media/radio/radio-sf16fmr2.c @@ -442,7 +442,6 @@ static struct video_device fmr2_radio= .owner = THIS_MODULE, .name = "SF16FMR2 radio", . type = VID_TYPE_TUNER, - .hardware = 0, .fops = &fmr2_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c index e43acfd7e533..7e1911c3d54e 100644 --- a/drivers/media/radio/radio-terratec.c +++ b/drivers/media/radio/radio-terratec.c @@ -369,7 +369,6 @@ static struct video_device terratec_radio= .owner = THIS_MODULE, .name = "TerraTec ActiveRadio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &terratec_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-trust.c b/drivers/media/radio/radio-trust.c index c27c629d99df..c11981fed827 100644 --- a/drivers/media/radio/radio-trust.c +++ b/drivers/media/radio/radio-trust.c @@ -349,7 +349,6 @@ static struct video_device trust_radio= .owner = THIS_MODULE, .name = "Trust FM Radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &trust_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/radio/radio-typhoon.c b/drivers/media/radio/radio-typhoon.c index 8ff5a23a9f01..1366326474e5 100644 --- a/drivers/media/radio/radio-typhoon.c +++ b/drivers/media/radio/radio-typhoon.c @@ -349,7 +349,6 @@ static struct video_device typhoon_radio = .owner = THIS_MODULE, .name = "Typhoon Radio", .type = VID_TYPE_TUNER, - .hardware = 0, .fops = &typhoon_fops, .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 4d45a40016de..9dcbffd0aa15 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -489,6 +489,15 @@ config TUNER_3036 Say Y here to include support for Philips SAB3036 compatible tuners. If in doubt, say N. +config TUNER_TEA5761 + bool "TEA 5761 radio tuner (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on I2C + select VIDEO_TUNER + help + Say Y here to include support for Philips TEA5761 radio tuner. + If in doubt, say N. + config VIDEO_VINO tristate "SGI Vino Video For Linux (EXPERIMENTAL)" depends on I2C && SGI_IP22 && EXPERIMENTAL && VIDEO_V4L2 diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index 9c2de501612f..10b4d4469016 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -7,6 +7,8 @@ zr36067-objs := zoran_procfs.o zoran_device.o \ tuner-objs := tuner-core.o tuner-types.o tuner-simple.o \ mt20xx.o tda8290.o tea5767.o tda9887.o +tuner-$(CONFIG_TUNER_TEA5761) += tea5761.o + msp3400-objs := msp3400-driver.o msp3400-kthreads.o obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o compat_ioctl32.o @@ -16,7 +18,7 @@ ifeq ($(CONFIG_VIDEO_V4L1_COMPAT),y) endif obj-$(CONFIG_VIDEO_BT848) += bt8xx/ -obj-$(CONFIG_VIDEO_BT848) += ir-kbd-i2c.o +obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o obj-$(CONFIG_VIDEO_TVAUDIO) += tvaudio.o obj-$(CONFIG_VIDEO_TDA7432) += tda7432.o obj-$(CONFIG_VIDEO_TDA9875) += tda9875.o @@ -59,7 +61,7 @@ obj-$(CONFIG_VIDEO_CPIA) += cpia.o obj-$(CONFIG_VIDEO_CPIA_PP) += cpia_pp.o obj-$(CONFIG_VIDEO_CPIA_USB) += cpia_usb.o obj-$(CONFIG_VIDEO_MEYE) += meye.o -obj-$(CONFIG_VIDEO_SAA7134) += ir-kbd-i2c.o saa7134/ +obj-$(CONFIG_VIDEO_SAA7134) += saa7134/ obj-$(CONFIG_VIDEO_CX88) += cx88/ obj-$(CONFIG_VIDEO_IVTV) += ivtv/ obj-$(CONFIG_VIDEO_EM28XX) += em28xx/ diff --git a/drivers/media/video/adv7170.c b/drivers/media/video/adv7170.c index 823cd6cc471e..cbab53fc6243 100644 --- a/drivers/media/video/adv7170.c +++ b/drivers/media/video/adv7170.c @@ -38,23 +38,23 @@ #include <linux/slab.h> #include <linux/mm.h> #include <linux/signal.h> +#include <linux/types.h> +#include <linux/i2c.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> -#include <linux/types.h> +#include <asm/uaccess.h> #include <linux/videodev.h> -#include <asm/uaccess.h> +#include <linux/video_encoder.h> MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver"); MODULE_AUTHOR("Maxim Yevtyushkin"); MODULE_LICENSE("GPL"); -#include <linux/i2c.h> #define I2C_NAME(x) (x)->name -#include <linux/video_encoder.h> static int debug = 0; module_param(debug, int, 0); diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c index 05c7820fe53e..0d0c554bfdf7 100644 --- a/drivers/media/video/adv7175.c +++ b/drivers/media/video/adv7175.c @@ -34,23 +34,23 @@ #include <linux/slab.h> #include <linux/mm.h> #include <linux/signal.h> +#include <linux/types.h> +#include <linux/i2c.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> -#include <linux/types.h> +#include <asm/uaccess.h> #include <linux/videodev.h> -#include <asm/uaccess.h> +#include <linux/video_encoder.h> MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver"); MODULE_AUTHOR("Dave Perks"); MODULE_LICENSE("GPL"); -#include <linux/i2c.h> #define I2C_NAME(s) (s)->name -#include <linux/video_encoder.h> static int debug = 0; module_param(debug, int, 0); diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c index 59a43603b5cb..12d1b9248be5 100644 --- a/drivers/media/video/bt819.c +++ b/drivers/media/video/bt819.c @@ -38,23 +38,24 @@ #include <linux/slab.h> #include <linux/mm.h> #include <linux/signal.h> +#include <linux/types.h> +#include <linux/i2c.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> -#include <linux/types.h> +#include <asm/uaccess.h> #include <linux/videodev.h> -#include <asm/uaccess.h> +#include <linux/video_decoder.h> + MODULE_DESCRIPTION("Brooktree-819 video decoder driver"); MODULE_AUTHOR("Mike Bernson & Dave Perks"); MODULE_LICENSE("GPL"); -#include <linux/i2c.h> #define I2C_NAME(s) (s)->name -#include <linux/video_decoder.h> static int debug = 0; module_param(debug, int, 0); diff --git a/drivers/media/video/bt856.c b/drivers/media/video/bt856.c index 853b1a3d6a1d..e1028a76c042 100644 --- a/drivers/media/video/bt856.c +++ b/drivers/media/video/bt856.c @@ -38,23 +38,23 @@ #include <linux/slab.h> #include <linux/mm.h> #include <linux/signal.h> +#include <linux/types.h> +#include <linux/i2c.h> +#include <linux/video_encoder.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> -#include <linux/types.h> +#include <asm/uaccess.h> #include <linux/videodev.h> -#include <asm/uaccess.h> MODULE_DESCRIPTION("Brooktree-856A video encoder driver"); MODULE_AUTHOR("Mike Bernson & Dave Perks"); MODULE_LICENSE("GPL"); -#include <linux/i2c.h> #define I2C_NAME(s) (s)->name -#include <linux/video_encoder.h> static int debug = 0; module_param(debug, int, 0); diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c index 6b31e50fb951..2aea09c72093 100644 --- a/drivers/media/video/bt8xx/bttv-cards.c +++ b/drivers/media/video/bt8xx/bttv-cards.c @@ -178,8 +178,8 @@ static struct CARD { /* this seems to happen as well ... */ { 0xff1211bd, BTTV_BOARD_PINNACLE, "Pinnacle PCTV" }, - { 0x3000121a, BTTV_BOARD_VOODOOTV_FM, "3Dfx VoodooTV FM/ VoodooTV 200" }, - { 0x263710b4, BTTV_BOARD_VOODOOTV_FM, "3Dfx VoodooTV FM/ VoodooTV 200" }, + { 0x3000121a, BTTV_BOARD_VOODOOTV_200, "3Dfx VoodooTV 200" }, + { 0x263710b4, BTTV_BOARD_VOODOOTV_FM, "3Dfx VoodooTV FM" }, { 0x3060121a, BTTV_BOARD_STB2, "3Dfx VoodooTV 100/ STB OEM" }, { 0x3000144f, BTTV_BOARD_MAGICTVIEW063, "(Askey Magic/others) TView99 CPH06x" }, @@ -313,6 +313,7 @@ static struct CARD { { 0xdb1118ac, BTTV_BOARD_DVICO_DVBT_LITE, "Ultraview DVB-T Lite" }, { 0xd50018ac, BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE, "DViCO FusionHDTV 5 Lite" }, { 0x00261822, BTTV_BOARD_TWINHAN_DST, "DNTV Live! Mini "}, + { 0xd200dbc0, BTTV_BOARD_DVICO_FUSIONHDTV_2, "DViCO FusionHDTV 2" }, { 0, -1, NULL } }; @@ -329,7 +330,7 @@ struct tvcard bttv_tvcards[] = { .tuner = 0, .svhs = 2, .muxsel = { 2, 3, 1, 0 }, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -344,7 +345,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 2, 0, 0, 0 }, .gpiomute = 10, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -359,7 +360,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 1, 2, 3 }, .gpiomute = 4, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -387,13 +388,13 @@ struct tvcard bttv_tvcards[] = { .name = "Intel Create and Share PCI/ Smart Video Recorder III", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 2, .gpiomask = 0, .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 0 }, .needs_tvaudio = 0, - .tuner_type = 4, + .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -408,7 +409,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 1, 0, 1 }, .gpiomute = 3, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -423,7 +424,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0x0c, 0x04, 0x08, 0x04 }, /* 0x04 for some cards ?? */ .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .audio_hook = avermedia_tvphone_audio, @@ -433,13 +434,13 @@ struct tvcard bttv_tvcards[] = { .name = "MATRIX-Vision MV-Delta", .video_inputs = 5, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 3, .gpiomask = 0, .muxsel = { 2, 3, 1, 0, 0 }, .gpiomux = { 0 }, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -457,7 +458,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0xc00, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -488,7 +489,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 4, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -503,7 +504,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0x20001,0x10001, 0, 0 }, .gpiomute = 10, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -519,7 +520,7 @@ struct tvcard bttv_tvcards[] = { .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 13, 14, 11, 7 }, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -553,7 +554,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 4, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -568,7 +569,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 0, 1, 0 }, .gpiomute = 10, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -587,7 +588,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0x002000, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, }, [BTTV_BOARD_WINVIEW_601] = { .name = "Leadtek WinView 601", @@ -600,7 +601,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0x4fa007,0xcfa007,0xcfa007,0xcfa007 }, .gpiomute = 0xcfa007, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .audio_hook = winview_audio, @@ -616,7 +617,7 @@ struct tvcard bttv_tvcards[] = { .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 1, 0, 0, 0 }, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -624,13 +625,13 @@ struct tvcard bttv_tvcards[] = { .name = "Lifeview FlyVideo II EZ /FlyKit LR38 Bt848 (capture only)", .video_inputs = 4, .audio_inputs = 1, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0x8dff00, .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 0 }, .no_msp34xx = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -643,7 +644,7 @@ struct tvcard bttv_tvcards[] = { .tuner = 0, .svhs = 2, .muxsel = { 2, 3, 1, 1 }, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -674,7 +675,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0xc00, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -683,7 +684,7 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 3, .audio_inputs = 1, .tuner = 0, - .svhs = -1, + .svhs = UNSET, .gpiomask = 7, .muxsel = { 2, 3, -1 }, .digital_mode = DIGITAL_MODE_CAMERA, @@ -708,7 +709,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0xc00, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_remote = 1, @@ -740,7 +741,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 1, 2, 3 }, .gpiomute = 4, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -813,13 +814,13 @@ struct tvcard bttv_tvcards[] = { .name = "Imagenation PXC200", .video_inputs = 5, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 1, /* was: 4 */ .gpiomask = 0, .muxsel = { 2, 3, 1, 0, 0}, .gpiomux = { 0 }, .needs_tvaudio = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .muxsel_hook = PXC200_muxsel, @@ -836,7 +837,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 0x0800, 0x1000, 0x1000 }, .gpiomute = 0x1800, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -860,13 +861,13 @@ struct tvcard bttv_tvcards[] = { .name = "Intel Create and Share PCI/ Smart Video Recorder III", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 2, .gpiomask = 0, .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 0 }, .needs_tvaudio = 0, - .tuner_type = 4, + .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -911,7 +912,7 @@ struct tvcard bttv_tvcards[] = { .needs_tvaudio = 0, .pll = PLL_28, .has_radio = 1, - .tuner_type = 5, /* default for now, gpio reads BFFF06 for Pal bg+dk */ + .tuner_type = TUNER_PHILIPS_PAL, /* default for now, gpio reads BFFF06 for Pal bg+dk */ .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .audio_hook = winfast2000_audio, @@ -928,7 +929,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 0x800, 0x1000, 0x1000 }, .gpiomute = 0x1800, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -945,7 +946,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 0x800, 0x1000, 0x1000 }, .gpiomute = 0x1800, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_radio = 1, @@ -962,7 +963,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0x29, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -978,7 +979,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0x551c00, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = 1, + .tuner_type = TUNER_PHILIPS_PAL_I, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_remote = 1, @@ -995,7 +996,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 1, .needs_tvaudio = 0, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1030,7 +1031,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 13, 4, 11, 7 }, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_radio = 1, @@ -1048,7 +1049,7 @@ struct tvcard bttv_tvcards[] = { .needs_tvaudio = 1, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = 1, + .tuner_type = TUNER_PHILIPS_PAL_I, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1063,7 +1064,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0xff9ff6, 0xff9ff6, 0xff1ff7, 0 }, .gpiomute = 0xff3ffc, .no_msp34xx = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1074,14 +1075,14 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 2, .audio_inputs = 1, .tuner = 0, - .svhs = -1, + .svhs = UNSET, .gpiomask = 3, .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 1, 1, 0, 2 }, .gpiomute = 3, .no_msp34xx = 1, .pll = PLL_NONE, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1089,14 +1090,14 @@ struct tvcard bttv_tvcards[] = { .name = "MATRIX-Vision MV-Delta 2", .video_inputs = 5, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 3, .gpiomask = 0, .muxsel = { 2, 3, 1, 0, 0 }, .gpiomux = { 0 }, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1112,7 +1113,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0xbcb03f, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = 21, + .tuner_type = TUNER_TEMIC_4039FR5_NTSC, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1129,7 +1130,7 @@ struct tvcard bttv_tvcards[] = { .needs_tvaudio = 1, .no_msp34xx = 1, .pll = PLL_35, - .tuner_type = 1, + .tuner_type = TUNER_PHILIPS_PAL_I, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_radio = 1, @@ -1148,7 +1149,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 1, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1206,7 +1207,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 1, 2, 3 }, .gpiomute = 4, .pll = PLL_28, - .tuner_type = -1 /* TUNER_ALPS_TMDH2_NTSC */, + .tuner_type = UNSET /* TUNER_ALPS_TMDH2_NTSC */, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1234,7 +1235,7 @@ struct tvcard bttv_tvcards[] = { 1= FM stereo Radio from Tuner */ .needs_tvaudio = 0, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1277,7 +1278,7 @@ struct tvcard bttv_tvcards[] = { 0x0080: Tuner A2 SAP (second audio program = Zweikanalton) 0x0880: Tuner A2 stereo */ .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1313,7 +1314,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 0x800, 0x1000, 0x1000 }, .gpiomute = 0x1800, .pll = PLL_28, - .tuner_type = 5, + .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1324,7 +1325,7 @@ struct tvcard bttv_tvcards[] = { .name = "GrandTec 'Grand Video Capture' (Bt848)", .video_inputs = 2, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .gpiomask = 0, .muxsel = { 3, 1 }, @@ -1332,7 +1333,7 @@ struct tvcard bttv_tvcards[] = { .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_35, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1365,7 +1366,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 2, 0, 0, 0 }, .gpiomute = 1, .pll = PLL_28, - .tuner_type = 0, + .tuner_type = TUNER_TEMIC_PAL, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1377,7 +1378,7 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 2, .audio_inputs = 2, .tuner = 0, - .svhs = -1, + .svhs = UNSET, .gpiomask = 11, .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 2, 0, 0, 1 }, @@ -1392,7 +1393,7 @@ struct tvcard bttv_tvcards[] = { .name = "AG Electronics GMV1", .video_inputs = 2, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .gpiomask = 0xF, .muxsel = { 2, 2 }, @@ -1400,7 +1401,7 @@ struct tvcard bttv_tvcards[] = { .no_msp34xx = 1, .needs_tvaudio = 0, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1447,7 +1448,7 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 2, .audio_inputs = 1, .tuner = 0, - .svhs = -1, + .svhs = UNSET, .gpiomask = 1, .muxsel = { 2, 3, 0, 1 }, .gpiomux = { 0, 0, 1, 0 }, @@ -1476,7 +1477,7 @@ struct tvcard bttv_tvcards[] = { .no_tda9875 = 1, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = 5, + .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1517,13 +1518,35 @@ struct tvcard bttv_tvcards[] = { /* ---- card 0x44 ---------------------------------- */ [BTTV_BOARD_VOODOOTV_FM] = { - .name = "3Dfx VoodooTV FM (Euro), VoodooTV 200 (USA)", + .name = "3Dfx VoodooTV FM (Euro)", + /* try "insmod msp3400 simple=0" if you have + * sound problems with this card. */ + .video_inputs = 4, + .audio_inputs = 1, + .tuner = 0, + .svhs = UNSET, + .gpiomask = 0x4f8a00, + /* 0x100000: 1=MSP enabled (0=disable again) + * 0x010000: Connected to "S0" on tda9880 (0=Pal/BG, 1=NTSC) */ + .gpiomux = {0x947fff, 0x987fff,0x947fff,0x947fff }, + .gpiomute = 0x947fff, + /* tvtuner, radio, external,internal, mute, stereo + * tuner, Composit, SVid, Composit-on-Svid-adapter */ + .muxsel = { 2, 3 ,0 ,1 }, + .tuner_type = TUNER_MT2032, + .tuner_addr = ADDR_UNSET, + .radio_addr = ADDR_UNSET, + .pll = PLL_28, + .has_radio = 1, + }, + [BTTV_BOARD_VOODOOTV_200] = { + .name = "VoodooTV 200 (USA)", /* try "insmod msp3400 simple=0" if you have * sound problems with this card. */ .video_inputs = 4, .audio_inputs = 1, .tuner = 0, - .svhs = -1, + .svhs = UNSET, .gpiomask = 0x4f8a00, /* 0x100000: 1=MSP enabled (0=disable again) * 0x010000: Connected to "S0" on tda9880 (0=Pal/BG, 1=NTSC) */ @@ -1543,8 +1566,8 @@ struct tvcard bttv_tvcards[] = { .name = "Active Imaging AIMMS", .video_inputs = 1, .audio_inputs = 0, - .tuner = -1, - .tuner_type = -1, + .tuner = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .pll = PLL_28, @@ -1564,7 +1587,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 13, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = 25, + .tuner_type = TUNER_LG_PAL_I_FM, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_remote = 1, @@ -1580,7 +1603,7 @@ struct tvcard bttv_tvcards[] = { .name = "Lifeview FlyVideo 98EZ (capture only) LR51", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 2, .muxsel = { 2, 3, 1, 1 }, /* AV1, AV2, SVHS, CVid adapter on SVHS */ .pll = PLL_28, @@ -1606,7 +1629,7 @@ struct tvcard bttv_tvcards[] = { .no_msp34xx = 1, .no_tda9875 = 1, .pll = PLL_28, - .tuner_type = 5, + .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .audio_hook = pvbt878p9b_audio, /* Note: not all cards have stereo */ @@ -1626,13 +1649,13 @@ struct tvcard bttv_tvcards[] = { .name = "Sensoray 311", .video_inputs = 5, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 4, .gpiomask = 0, .muxsel = { 2, 3, 1, 0, 0 }, .gpiomux = { 0 }, .needs_tvaudio = 0, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1641,15 +1664,15 @@ struct tvcard bttv_tvcards[] = { .name = "RemoteVision MX (RV605)", .video_inputs = 16, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0x00, .gpiomask2 = 0x07ff, .muxsel = { 0x33, 0x13, 0x23, 0x43, 0xf3, 0x73, 0xe3, 0x03, 0xd3, 0xb3, 0xc3, 0x63, 0x93, 0x53, 0x83, 0xa3 }, .no_msp34xx = 1, .no_tda9875 = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .muxsel_hook = rv605_muxsel, @@ -1693,15 +1716,15 @@ struct tvcard bttv_tvcards[] = { .name = "GrandTec Multi Capture Card (Bt878)", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0, .muxsel = { 2, 3, 1, 0 }, .gpiomux = { 0 }, .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1724,7 +1747,7 @@ struct tvcard bttv_tvcards[] = { .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = 5, + .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, /* Samsung TCPA9095PC27A (BG+DK), philips compatible, w/FM, stereo and @@ -1744,10 +1767,10 @@ struct tvcard bttv_tvcards[] = { /* Arthur Tetzlaff-Deas, DSP Design Ltd <software@dspdesign.com> */ .name = "DSP Design TCVIDEO", .video_inputs = 4, - .svhs = -1, + .svhs = UNSET, .muxsel = { 2, 3, 1, 0 }, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -1762,7 +1785,7 @@ struct tvcard bttv_tvcards[] = { .muxsel = { 2, 0, 1, 1 }, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, @@ -1791,11 +1814,11 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 100/150 (878)", /* 0x1(2|3)-45C6-C1 */ .video_inputs = 4, /* id-inputs-clock */ .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 3, .muxsel = { 3, 2, 0, 1 }, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -1806,11 +1829,11 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 100/150 (848)", /* 0x04-54C0-C1 & older boards */ .video_inputs = 3, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 2, .muxsel = { 2, 3, 1 }, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -1823,11 +1846,11 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 101 (848)", /* 0x05-40C0-C1 */ .video_inputs = 2, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 3, 1 }, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -1838,11 +1861,11 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 101/151", /* 0x1(4|5)-0004-C4 */ .video_inputs = 1, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .muxsel = { 0 }, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -1853,11 +1876,11 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 101/151 w/ svid", /* 0x(16|17|20)-00C4-C1 */ .video_inputs = 2, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 0, 1 }, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -1868,8 +1891,8 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 200/201/250/251", /* 0x1(8|9|E|F)-0004-C4 */ .video_inputs = 1, .audio_inputs = 1, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .muxsel = { 0 }, .pll = PLL_28, .tuner_type = UNSET, @@ -1885,7 +1908,7 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 200/250", /* 0x1(A|B)-00C4-C1 */ .video_inputs = 2, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 0, 1 }, .pll = PLL_28, @@ -1900,7 +1923,7 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 210/220/230", /* 0x1(A|B)-04C0-C1 */ .video_inputs = 2, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 2, 3 }, .pll = PLL_28, @@ -1915,11 +1938,11 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 500", /* 500 */ .video_inputs = 2, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 2, 3 }, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -1930,9 +1953,9 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 540", /* 540 */ .video_inputs = 4, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -1945,7 +1968,7 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 2000", /* 2000 */ .video_inputs = 2, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 2, 3 }, .pll = PLL_28, @@ -1961,11 +1984,11 @@ struct tvcard bttv_tvcards[] = { .name = "IDS Eagle", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .tuner_type = -1, + .tuner = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - .svhs = -1, + .svhs = UNSET, .gpiomask = 0, .muxsel = { 0, 1, 2, 3 }, .muxsel_hook = eagle_muxsel, @@ -1978,8 +2001,8 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 2, .audio_inputs = 0, .svhs = 1, - .tuner = -1, - .tuner_type = -1, + .tuner = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .no_msp34xx = 1, @@ -2020,13 +2043,13 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 3, .audio_inputs = 1, .tuner = 0, - .svhs = -1, + .svhs = UNSET, .gpiomask = 7, .muxsel = { 2, 3, 1, 1}, .gpiomux = { 0, 1, 2, 3}, .gpiomute = 4, .needs_tvaudio = 1, - .tuner_type = 5, + .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .pll = PLL_28, @@ -2035,7 +2058,7 @@ struct tvcard bttv_tvcards[] = { .name = "Euresys Picolo", .video_inputs = 3, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 2, .gpiomask = 0, .no_msp34xx = 1, @@ -2052,8 +2075,8 @@ struct tvcard bttv_tvcards[] = { .name = "ProVideo PV150", /* 0x4f */ .video_inputs = 2, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0, .muxsel = { 2, 3 }, .gpiomux = { 0 }, @@ -2080,7 +2103,7 @@ struct tvcard bttv_tvcards[] = { .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = 2, + .tuner_type = TUNER_PHILIPS_NTSC, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .audio_hook = adtvk503_audio, @@ -2098,7 +2121,7 @@ struct tvcard bttv_tvcards[] = { .needs_tvaudio = 1, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = 5, + .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, /* Notes: @@ -2121,7 +2144,7 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .no_tda9875 = 1, .no_tda7432 = 1, - .tuner_type = 1, + .tuner_type = TUNER_PHILIPS_PAL_I, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_radio = 1, @@ -2138,11 +2161,11 @@ struct tvcard bttv_tvcards[] = { .name = "IVC-200", .video_inputs = 1, .audio_inputs = 0, - .tuner = -1, - .tuner_type = -1, + .tuner = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - .svhs = -1, + .svhs = UNSET, .gpiomask = 0xdf, .muxsel = { 2 }, .pll = PLL_28, @@ -2151,9 +2174,9 @@ struct tvcard bttv_tvcards[] = { .name = "Grand X-Guard / Trust 814PCI", .video_inputs = 16, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, - .tuner_type = 4, + .tuner = UNSET, + .svhs = UNSET, + .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .gpiomask2 = 0xff, @@ -2169,14 +2192,14 @@ struct tvcard bttv_tvcards[] = { [BTTV_BOARD_NEBULA_DIGITV] = { .name = "Nebula Electronics DigiTV", .video_inputs = 1, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .muxsel = { 2, 3, 1, 0 }, .no_msp34xx = 1, .no_tda9875 = 1, .no_tda7432 = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_dvb = 1, @@ -2189,15 +2212,15 @@ struct tvcard bttv_tvcards[] = { .name = "ProVideo PV143", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0, .muxsel = { 2, 3, 1, 0 }, .gpiomux = { 0 }, .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2206,14 +2229,14 @@ struct tvcard bttv_tvcards[] = { .name = "PHYTEC VD-009-X1 MiniDIN (bt878)", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, /* card has no tuner */ + .tuner = UNSET, /* card has no tuner */ .svhs = 3, .gpiomask = 0x00, .muxsel = { 2, 3, 1, 0 }, .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2221,14 +2244,14 @@ struct tvcard bttv_tvcards[] = { .name = "PHYTEC VD-009-X1 Combi (bt878)", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, /* card has no tuner */ + .tuner = UNSET, /* card has no tuner */ .svhs = 3, .gpiomask = 0x00, .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2238,7 +2261,7 @@ struct tvcard bttv_tvcards[] = { .name = "PHYTEC VD-009 MiniDIN (bt878)", .video_inputs = 10, .audio_inputs = 0, - .tuner = -1, /* card has no tuner */ + .tuner = UNSET, /* card has no tuner */ .svhs = 9, .gpiomask = 0x00, .gpiomask2 = 0x03, /* gpiomask2 defines the bits used to switch audio @@ -2248,7 +2271,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2256,7 +2279,7 @@ struct tvcard bttv_tvcards[] = { .name = "PHYTEC VD-009 Combi (bt878)", .video_inputs = 10, .audio_inputs = 0, - .tuner = -1, /* card has no tuner */ + .tuner = UNSET, /* card has no tuner */ .svhs = 9, .gpiomask = 0x00, .gpiomask2 = 0x03, /* gpiomask2 defines the bits used to switch audio @@ -2266,7 +2289,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2274,11 +2297,11 @@ struct tvcard bttv_tvcards[] = { .name = "IVC-100", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .tuner_type = -1, + .tuner = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - .svhs = -1, + .svhs = UNSET, .gpiomask = 0xdf, .muxsel = { 2, 3, 1, 0 }, .pll = PLL_28, @@ -2288,11 +2311,11 @@ struct tvcard bttv_tvcards[] = { .name = "IVC-120G", .video_inputs = 16, .audio_inputs = 0, /* card has no audio */ - .tuner = -1, /* card has no tuner */ - .tuner_type = -1, + .tuner = UNSET, /* card has no tuner */ + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - .svhs = -1, /* card has no svhs */ + .svhs = UNSET, /* card has no svhs */ .needs_tvaudio = 0, .no_msp34xx = 1, .no_tda9875 = 1, @@ -2333,7 +2356,7 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 3, .audio_inputs = 0, .svhs = 1, - .tuner = -1, + .tuner = UNSET, .muxsel = { 3, 1, 1, 3 }, /* Vid In, SVid In, Vid over SVid in connector */ .no_msp34xx = 1, .no_tda9875 = 1, @@ -2364,9 +2387,9 @@ struct tvcard bttv_tvcards[] = { .name = "SIMUS GVC1100", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, - .tuner_type = -1, + .tuner = UNSET, + .svhs = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .pll = PLL_28, @@ -2395,14 +2418,14 @@ struct tvcard bttv_tvcards[] = { .name = "LMLBT4", .video_inputs = 4, /* IN1,IN2,IN3,IN4 */ .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .muxsel = { 2, 3, 1, 0 }, .no_msp34xx = 1, .no_tda9875 = 1, .no_tda7432 = 1, .needs_tvaudio = 0, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2452,8 +2475,8 @@ struct tvcard bttv_tvcards[] = { .name = "Euresys Picolo Tetra", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0, .gpiomask2 = 0x3C<<16,/*Set the GPIO[18]->GPIO[21] as output pin.==> drive the video inputs through analog multiplexers*/ .no_msp34xx = 1, @@ -2464,7 +2487,7 @@ struct tvcard bttv_tvcards[] = { .pll = PLL_28, .needs_tvaudio = 0, .muxsel_hook = picolo_tetra_muxsel,/*Required as it doesn't follow the classic input selection policy*/ - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2490,7 +2513,7 @@ struct tvcard bttv_tvcards[] = { .name = "AVerMedia AVerTV DVB-T 771", .video_inputs = 2, .svhs = 1, - .tuner = -1, + .tuner = UNSET, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, @@ -2509,14 +2532,14 @@ struct tvcard bttv_tvcards[] = { /* Based on the Nebula card data - added remote and new card number - BTTV_BOARD_AVDVBT_761, see also ir-kbd-gpio.c */ .name = "AverMedia AverTV DVB-T 761", .video_inputs = 2, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 3, 1, 2, 0 }, /* Comp0, S-Video, ?, ? */ .no_msp34xx = 1, .no_tda9875 = 1, .no_tda7432 = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .has_dvb = 1, @@ -2528,8 +2551,8 @@ struct tvcard bttv_tvcards[] = { .name = "MATRIX Vision Sigma-SQ", .video_inputs = 16, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0x0, .muxsel = { 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3 }, @@ -2537,7 +2560,7 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 0 }, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2546,15 +2569,15 @@ struct tvcard bttv_tvcards[] = { .name = "MATRIX Vision Sigma-SLC", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0x0, .muxsel = { 2, 2, 2, 2 }, .muxsel_hook = sigmaSLC_muxsel, .gpiomux = { 0 }, .no_msp34xx = 1, .pll = PLL_28, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2566,7 +2589,7 @@ struct tvcard bttv_tvcards[] = { .video_inputs = 2, .audio_inputs = 1, .tuner = 0, - .svhs = -1, + .svhs = UNSET, .gpiomask = 0xFF, .muxsel = { 2, 3, 1, 1 }, .gpiomux = { 2, 0, 0, 0 }, @@ -2584,14 +2607,14 @@ struct tvcard bttv_tvcards[] = { [BTTV_BOARD_DVICO_DVBT_LITE] = { /* Chris Pascoe <c.pascoe@itee.uq.edu.au> */ .name = "DViCO FusionHDTV DVB-T Lite", - .tuner = -1, + .tuner = UNSET, .no_msp34xx = 1, .no_tda9875 = 1, .no_tda7432 = 1, .pll = PLL_28, .no_video = 1, .has_dvb = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2634,14 +2657,14 @@ struct tvcard bttv_tvcards[] = { .name = "Tibet Systems 'Progress DVR' CS16", .video_inputs = 16, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .muxsel = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 }, .pll = PLL_28, .no_msp34xx = 1, .no_tda9875 = 1, .no_tda7432 = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .muxsel_hook = tibetCS16_muxsel, @@ -2661,11 +2684,11 @@ struct tvcard bttv_tvcards[] = { .name = "Kodicom 4400R (master)", .video_inputs = 16, .audio_inputs = 0, - .tuner = -1, - .tuner_type = -1, + .tuner = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - .svhs = -1, + .svhs = UNSET, /* GPIO bits 0-9 used for analog switch: * 00 - 03: camera selector * 04 - 06: channel (controller) selector @@ -2693,11 +2716,11 @@ struct tvcard bttv_tvcards[] = { .name = "Kodicom 4400R (slave)", .video_inputs = 16, .audio_inputs = 0, - .tuner = -1, - .tuner_type = -1, + .tuner = UNSET, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - .svhs = -1, + .svhs = UNSET, .gpiomask = 0x010000, .no_gpioirq = 1, .muxsel = { 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 }, @@ -2717,7 +2740,7 @@ struct tvcard bttv_tvcards[] = { .tuner = 0, .svhs = 2, .muxsel = { 2, 3, 1, 0 }, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .pll = PLL_28, @@ -2824,7 +2847,7 @@ struct tvcard bttv_tvcards[] = { .name = "Osprey 440", .video_inputs = 1, .audio_inputs = 1, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 2 }, .pll = PLL_28, @@ -2848,7 +2871,7 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 1, .needs_tvaudio = 1, .pll = PLL_28, - .tuner_type = 2, + .tuner_type = TUNER_PHILIPS_NTSC, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2875,14 +2898,14 @@ struct tvcard bttv_tvcards[] = { .name = "Hauppauge ImpactVCB (bt878)", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .gpiomask = 0x0f, /* old: 7 */ .muxsel = { 0, 1, 3, 2 }, /* Composite 0-3 */ .no_msp34xx = 1, .no_tda9875 = 1, .no_tda7432 = 1, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2914,10 +2937,10 @@ struct tvcard bttv_tvcards[] = { .name = "SSAI Security Video Interface", .video_inputs = 4, .audio_inputs = 0, - .tuner = -1, - .svhs = -1, + .tuner = UNSET, + .svhs = UNSET, .muxsel = { 0, 1, 2, 3 }, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, @@ -2925,13 +2948,31 @@ struct tvcard bttv_tvcards[] = { .name = "SSAI Ultrasound Video Interface", .video_inputs = 2, .audio_inputs = 0, - .tuner = -1, + .tuner = UNSET, .svhs = 1, .muxsel = { 2, 0, 1, 3 }, - .tuner_type = -1, + .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, }, + /* ---- card 0x94---------------------------------- */ + [BTTV_BOARD_DVICO_FUSIONHDTV_2] = { + .name = "DViCO FusionHDTV 2", + .tuner = 0, + .tuner_type = TUNER_PHILIPS_ATSC, /* FCV1236D */ + .tuner_addr = ADDR_UNSET, + .radio_addr = ADDR_UNSET, + .video_inputs = 3, + .audio_inputs = 1, + .svhs = 2, + .muxsel = { 2, 3, 1 }, + .gpiomask = 0x00e00007, + .gpiomux = { 0x00400005, 0, 0x00000001, 0 }, + .gpiomute = 0x00c00007, + .no_msp34xx = 1, + .no_tda9875 = 1, + .no_tda7432 = 1, + }, }; static const unsigned int bttv_num_tvcards = ARRAY_SIZE(bttv_tvcards); @@ -3040,7 +3081,7 @@ static void identify_by_eeprom(struct bttv *btv, unsigned char eeprom_data[256]) static void flyvideo_gpio(struct bttv *btv) { int gpio,has_remote,has_radio,is_capture_only,is_lr90,has_tda9820_tda9821; - int tuner=-1,ttype; + int tuner=UNSET,ttype; gpio_inout(0xffffff, 0); udelay(8); /* without this we would see the 0x1800 mask */ @@ -3085,7 +3126,7 @@ static void flyvideo_gpio(struct bttv *btv) * gpio & 0x001000 output bit for audio routing */ if(is_capture_only) - tuner=4; /* No tuner present */ + tuner = TUNER_ABSENT; /* No tuner present */ printk(KERN_INFO "bttv%d: FlyVideo Radio=%s RemoteControl=%s Tuner=%d gpio=0x%06x\n", btv->c.nr, has_radio? "yes":"no ", has_remote? "yes":"no ", tuner, gpio); @@ -3093,7 +3134,7 @@ static void flyvideo_gpio(struct bttv *btv) btv->c.nr, is_lr90?"yes":"no ", has_tda9820_tda9821?"yes":"no ", is_capture_only?"yes":"no "); - if(tuner!= -1) /* only set if known tuner autodetected, else let insmod option through */ + if (tuner != UNSET) /* only set if known tuner autodetected, else let insmod option through */ btv->tuner_type = tuner; btv->has_radio = has_radio; @@ -3302,6 +3343,7 @@ void __devinit bttv_init_card1(struct bttv *btv) case BTTV_BOARD_HAUPPAUGE878: boot_msp34xx(btv,5); break; + case BTTV_BOARD_VOODOOTV_200: case BTTV_BOARD_VOODOOTV_FM: boot_msp34xx(btv,20); break; @@ -3328,10 +3370,9 @@ void __devinit bttv_init_card1(struct bttv *btv) /* initialization part two -- after registering i2c bus */ void __devinit bttv_init_card2(struct bttv *btv) { - int tda9887; int addr=ADDR_UNSET; - btv->tuner_type = -1; + btv->tuner_type = UNSET; if (BTTV_BOARD_UNKNOWN == btv->c.type) { bttv_readee(btv,eeprom_data,0xa0); @@ -3479,7 +3520,15 @@ void __devinit bttv_init_card2(struct bttv *btv) btv->tuner_type = bttv_tvcards[btv->c.type].tuner_type; if (UNSET != tuner[btv->c.nr]) btv->tuner_type = tuner[btv->c.nr]; - printk("bttv%d: using tuner=%d\n",btv->c.nr,btv->tuner_type); + + if (btv->tuner_type == TUNER_ABSENT || + bttv_tvcards[btv->c.type].tuner == UNSET) + printk(KERN_INFO "bttv%d: tuner absent\n", btv->c.nr); + else if(btv->tuner_type == UNSET) + printk(KERN_WARNING "bttv%d: tuner type unset\n", btv->c.nr); + else + printk(KERN_INFO "bttv%d: tuner type=%d\n", btv->c.nr, + btv->tuner_type); if (btv->tuner_type != UNSET) { struct tuner_setup tun_setup; @@ -3521,6 +3570,9 @@ void __devinit bttv_init_card2(struct bttv *btv) if (!autoload) return; + if (bttv_tvcards[btv->c.type].tuner == UNSET) + return; /* no tuner or related drivers to load */ + /* try to detect audio/fader chips */ if (!bttv_tvcards[btv->c.type].no_msp34xx && bttv_I2CRead(btv, I2C_ADDR_MSP3400, "MSP34xx") >=0) @@ -3541,17 +3593,7 @@ void __devinit bttv_init_card2(struct bttv *btv) if (bttv_tvcards[btv->c.type].needs_tvaudio) request_module("tvaudio"); - /* tuner modules */ - tda9887 = 0; - if (btv->tda9887_conf) - tda9887 = 1; - if (0 == tda9887 && 0 == bttv_tvcards[btv->c.type].has_dvb && - bttv_I2CRead(btv, I2C_ADDR_TDA9887, "TDA9887") >=0) - tda9887 = 1; - /* Hybrid DVB card, DOES have a tda9887 */ - if (btv->c.type == BTTV_BOARD_DVICO_FUSIONHDTV_5_LITE) - tda9887 = 1; - if (btv->tuner_type != UNSET) + if (btv->tuner_type != UNSET && btv->tuner_type != TUNER_ABSENT) request_module("tuner"); } @@ -3865,11 +3907,15 @@ void bttv_tda9880_setnorm(struct bttv *btv, int norm) if(norm==VIDEO_MODE_NTSC) { bttv_tvcards[BTTV_BOARD_VOODOOTV_FM].gpiomux[TVAUDIO_INPUT_TUNER]=0x957fff; bttv_tvcards[BTTV_BOARD_VOODOOTV_FM].gpiomute=0x957fff; + bttv_tvcards[BTTV_BOARD_VOODOOTV_200].gpiomux[TVAUDIO_INPUT_TUNER]=0x957fff; + bttv_tvcards[BTTV_BOARD_VOODOOTV_200].gpiomute=0x957fff; dprintk("bttv_tda9880_setnorm to NTSC\n"); } else { bttv_tvcards[BTTV_BOARD_VOODOOTV_FM].gpiomux[TVAUDIO_INPUT_TUNER]=0x947fff; bttv_tvcards[BTTV_BOARD_VOODOOTV_FM].gpiomute=0x947fff; + bttv_tvcards[BTTV_BOARD_VOODOOTV_200].gpiomux[TVAUDIO_INPUT_TUNER]=0x947fff; + bttv_tvcards[BTTV_BOARD_VOODOOTV_200].gpiomute=0x947fff; dprintk("bttv_tda9880_setnorm to PAL\n"); } /* set GPIO according */ diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index b1fedb0f6431..cb555f2c40f9 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -1218,7 +1218,14 @@ audio_mux(struct bttv *btv, int input, int mute) break; case TVAUDIO_INPUT_TUNER: default: - route.input = MSP_INPUT_DEFAULT; + /* This is the only card that uses TUNER2, and afaik, + is the only difference between the VOODOOTV_FM + and VOODOOTV_200 */ + if (btv->c.type == BTTV_BOARD_VOODOOTV_200) + route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \ + MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER); + else + route.input = MSP_INPUT_DEFAULT; break; } route.output = MSP_OUTPUT_DEFAULT; @@ -1253,7 +1260,7 @@ i2c_vidiocschan(struct bttv *btv) v4l2_std_id std = bttv_tvnorms[btv->tvnorm].v4l2_id; bttv_call_i2c_clients(btv, VIDIOC_S_STD, &std); - if (btv->c.type == BTTV_BOARD_VOODOOTV_FM) + if (btv->c.type == BTTV_BOARD_VOODOOTV_FM || btv->c.type == BTTV_BOARD_VOODOOTV_200) bttv_tda9880_setnorm(btv,btv->tvnorm); } @@ -1323,6 +1330,7 @@ set_tvnorm(struct bttv *btv, unsigned int norm) switch (btv->c.type) { case BTTV_BOARD_VOODOOTV_FM: + case BTTV_BOARD_VOODOOTV_200: bttv_tda9880_setnorm(btv,norm); break; } @@ -2251,6 +2259,24 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg) printk(KERN_INFO "bttv%d: ================== END STATUS CARD #%d ==================\n", btv->c.nr, btv->c.nr); return 0; } +#ifdef CONFIG_VIDEO_ADV_DEBUG + case VIDIOC_DBG_G_REGISTER: + case VIDIOC_DBG_S_REGISTER: + { + struct v4l2_register *reg = arg; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return -EINVAL; + /* bt848 has a 12-bit register space */ + reg->reg &= 0xfff; + if (cmd == VIDIOC_DBG_G_REGISTER) + reg->val = btread(reg->reg); + else + btwrite(reg->val, reg->reg); + return 0; + } +#endif default: return -ENOIOCTLCMD; @@ -3561,6 +3587,8 @@ static int bttv_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_G_FREQUENCY: case VIDIOC_S_FREQUENCY: case VIDIOC_LOG_STATUS: + case VIDIOC_DBG_G_REGISTER: + case VIDIOC_DBG_S_REGISTER: return bttv_common_ioctls(btv,cmd,arg); default: @@ -3943,6 +3971,8 @@ static int radio_do_ioctl(struct inode *inode, struct file *file, case VIDIOCGAUDIO: case VIDIOCSAUDIO: case VIDIOC_LOG_STATUS: + case VIDIOC_DBG_G_REGISTER: + case VIDIOC_DBG_S_REGISTER: return bttv_common_ioctls(btv,cmd,arg); default: diff --git a/drivers/media/video/bt8xx/bttv-input.c b/drivers/media/video/bt8xx/bttv-input.c index 6f74c8042bc3..94a13d0ee614 100644 --- a/drivers/media/video/bt8xx/bttv-input.c +++ b/drivers/media/video/bt8xx/bttv-input.c @@ -313,7 +313,7 @@ int bttv_input_init(struct bttv *btv) input_dev->id.vendor = btv->c.pci->vendor; input_dev->id.product = btv->c.pci->device; } - input_dev->cdev.dev = &btv->c.pci->dev; + input_dev->dev.parent = &btv->c.pci->dev; btv->remote = ir; bttv_ir_start(btv, ir); diff --git a/drivers/media/video/bt8xx/bttv.h b/drivers/media/video/bt8xx/bttv.h index f821ba69db99..dcc847dc2486 100644 --- a/drivers/media/video/bt8xx/bttv.h +++ b/drivers/media/video/bt8xx/bttv.h @@ -170,6 +170,8 @@ #define BTTV_BOARD_MACHTV_MAGICTV 0x90 #define BTTV_BOARD_SSAI_SECURITY 0x91 #define BTTV_BOARD_SSAI_ULTRASOUND 0x92 +#define BTTV_BOARD_VOODOOTV_200 0x93 +#define BTTV_BOARD_DVICO_FUSIONHDTV_2 0x94 /* more card-specific defines */ #define PT2254_L_CHANNEL 0x10 diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h index 8f44f02029be..bd85f6d0fbe3 100644 --- a/drivers/media/video/bt8xx/bttvp.h +++ b/drivers/media/video/bt8xx/bttvp.h @@ -33,12 +33,12 @@ #include <linux/i2c.h> #include <linux/i2c-algo-bit.h> #include <linux/videodev.h> -#include <media/v4l2-common.h> #include <linux/pci.h> #include <linux/input.h> #include <linux/mutex.h> #include <asm/scatterlist.h> #include <asm/io.h> +#include <media/v4l2-common.h> #include <linux/device.h> #include <media/video-buf.h> diff --git a/drivers/media/video/cpia2/cpia2_core.c b/drivers/media/video/cpia2/cpia2_core.c index fd771c7a2fe2..a76bd786cf13 100644 --- a/drivers/media/video/cpia2/cpia2_core.c +++ b/drivers/media/video/cpia2/cpia2_core.c @@ -663,15 +663,13 @@ int cpia2_reset_camera(struct camera_data *cam) cpia2_send_command(cam, &cmd); } - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(100 * HZ / 1000); /* wait for 100 msecs */ + schedule_timeout_interruptible(msecs_to_jiffies(100)); if (cam->params.pnp_id.device_type == DEVICE_STV_672) retval = apply_vp_patch(cam); /* wait for vp to go to sleep */ - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(100 * HZ / 1000); /* wait for 100 msecs */ + schedule_timeout_interruptible(msecs_to_jiffies(100)); /*** * If this is a 676, apply VP5 fixes before we start streaming @@ -720,8 +718,7 @@ int cpia2_reset_camera(struct camera_data *cam) set_default_user_mode(cam); /* Give VP time to wake up */ - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(100 * HZ / 1000); /* wait for 100 msecs */ + schedule_timeout_interruptible(msecs_to_jiffies(100)); set_all_properties(cam); @@ -2227,15 +2224,13 @@ struct camera_data *cpia2_init_camera_struct(void) { struct camera_data *cam; - cam = kmalloc(sizeof(*cam), GFP_KERNEL); + cam = kzalloc(sizeof(*cam), GFP_KERNEL); if (!cam) { ERR("couldn't kmalloc cpia2 struct\n"); return NULL; } - /* Default everything to 0 */ - memset(cam, 0, sizeof(struct camera_data)); cam->present = 1; mutex_init(&cam->busy_lock); diff --git a/drivers/media/video/cpia2/cpia2_v4l.c b/drivers/media/video/cpia2/cpia2_v4l.c index 1bda7ad9de11..92778cd1d735 100644 --- a/drivers/media/video/cpia2/cpia2_v4l.c +++ b/drivers/media/video/cpia2/cpia2_v4l.c @@ -105,7 +105,7 @@ static struct control_menu_info framerate_controls[] = { CPIA2_VP_FRAMERATE_25, "25 fps" }, { CPIA2_VP_FRAMERATE_30, "30 fps" }, }; -#define NUM_FRAMERATE_CONTROLS (sizeof(framerate_controls)/sizeof(framerate_controls[0])) +#define NUM_FRAMERATE_CONTROLS (ARRAY_SIZE(framerate_controls)) static struct control_menu_info flicker_controls[] = { @@ -113,7 +113,7 @@ static struct control_menu_info flicker_controls[] = { FLICKER_50, "50 Hz" }, { FLICKER_60, "60 Hz" }, }; -#define NUM_FLICKER_CONTROLS (sizeof(flicker_controls)/sizeof(flicker_controls[0])) +#define NUM_FLICKER_CONTROLS (ARRAY_SIZE(flicker_controls)) static struct control_menu_info lights_controls[] = { @@ -122,7 +122,7 @@ static struct control_menu_info lights_controls[] = { 128, "Bottom" }, { 192, "Both" }, }; -#define NUM_LIGHTS_CONTROLS (sizeof(lights_controls)/sizeof(lights_controls[0])) +#define NUM_LIGHTS_CONTROLS (ARRAY_SIZE(lights_controls)) #define GPIO_LIGHTS_MASK 192 static struct v4l2_queryctrl controls[] = { @@ -235,7 +235,7 @@ static struct v4l2_queryctrl controls[] = { .default_value = 0, }, }; -#define NUM_CONTROLS (sizeof(controls)/sizeof(controls[0])) +#define NUM_CONTROLS (ARRAY_SIZE(controls)) /****************************************************************************** diff --git a/drivers/media/video/cx88/Kconfig b/drivers/media/video/cx88/Kconfig index 0f9d96963618..f750a543c961 100644 --- a/drivers/media/video/cx88/Kconfig +++ b/drivers/media/video/cx88/Kconfig @@ -47,7 +47,7 @@ config VIDEO_CX88_DVB tristate "DVB/ATSC Support for cx2388x based TV cards" depends on VIDEO_CX88 && DVB_CORE select VIDEO_BUF_DVB - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_MT352 if !DVB_FE_CUSTOMISE select DVB_ZL10353 if !DVB_FE_CUSTOMISE select DVB_OR51132 if !DVB_FE_CUSTOMISE diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index a80b1cb1abe8..f2fcdb92ecce 100644 --- a/drivers/media/video/cx88/cx88-blackbird.c +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -56,8 +56,7 @@ MODULE_PARM_DESC(debug,"enable debug messages [blackbird]"); /* ------------------------------------------------------------------ */ -#define OLD_BLACKBIRD_FIRM_IMAGE_SIZE 262144 -#define BLACKBIRD_FIRM_IMAGE_SIZE 376836 +#define BLACKBIRD_FIRM_IMAGE_SIZE 376836 /* defines below are from ivtv-driver.h */ @@ -405,7 +404,7 @@ static int blackbird_find_mailbox(struct cx8802_dev *dev) u32 value; int i; - for (i = 0; i < dev->fw_size; i++) { + for (i = 0; i < BLACKBIRD_FIRM_IMAGE_SIZE; i++) { memory_read(dev->core, i, &value); if (value == signature[signaturecnt]) signaturecnt++; @@ -453,15 +452,12 @@ static int blackbird_load_firmware(struct cx8802_dev *dev) return -1; } - if ((firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) && - (firmware->size != OLD_BLACKBIRD_FIRM_IMAGE_SIZE)) { - dprintk(0, "ERROR: Firmware size mismatch (have %zd, expected %d or %d)\n", - firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE, - OLD_BLACKBIRD_FIRM_IMAGE_SIZE); + if (firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) { + dprintk(0, "ERROR: Firmware size mismatch (have %zd, expected %d)\n", + firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE); release_firmware(firmware); return -1; } - dev->fw_size = firmware->size; if (0 != memcmp(firmware->data, magic, 8)) { dprintk(0, "ERROR: Firmware magic mismatch, wrong file?\n"); diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c index e61102dc8ad7..6a136ddbccf8 100644 --- a/drivers/media/video/cx88/cx88-cards.c +++ b/drivers/media/video/cx88/cx88-cards.c @@ -1335,6 +1335,26 @@ struct cx88_board cx88_boards[] = { /* fixme: Add radio support */ .mpeg = CX88_MPEG_DVB | CX88_MPEG_BLACKBIRD, }, + [CX88_BOARD_ADSTECH_PTV_390] = { + .name = "ADS Tech Instant Video PCI", + .tuner_type = TUNER_ABSENT, + .radio_type = UNSET, + .tuner_addr = ADDR_UNSET, + .radio_addr = ADDR_UNSET, + .input = {{ + .type = CX88_VMUX_DEBUG, + .vmux = 3, + .gpio0 = 0x04ff, + },{ + .type = CX88_VMUX_COMPOSITE1, + .vmux = 1, + .gpio0 = 0x07fa, + },{ + .type = CX88_VMUX_SVIDEO, + .vmux = 2, + .gpio0 = 0x07fa, + }}, + }, }; const unsigned int cx88_bcount = ARRAY_SIZE(cx88_boards); @@ -1641,6 +1661,10 @@ struct cx88_subid cx88_subids[] = { .subvendor = 0x1421, .subdevice = 0x0341, /* ADS Tech InstantTV DVB-S */ .card = CX88_BOARD_KWORLD_DVBS_100, + },{ + .subvendor = 0x1421, + .subdevice = 0x0390, + .card = CX88_BOARD_ADSTECH_PTV_390, }, }; const unsigned int cx88_idcount = ARRAY_SIZE(cx88_subids); diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c index dbfe4dc9cf8c..1773b40467dc 100644 --- a/drivers/media/video/cx88/cx88-dvb.c +++ b/drivers/media/video/cx88/cx88-dvb.c @@ -35,9 +35,7 @@ #include "mt352.h" #include "mt352_priv.h" -#if defined(CONFIG_VIDEO_CX88_VP3054) || defined(CONFIG_VIDEO_CX88_VP3054_MODULE) -# include "cx88-vp3054-i2c.h" -#endif +#include "cx88-vp3054-i2c.h" #include "zl10353.h" #include "cx22702.h" #include "or51132.h" @@ -199,7 +197,7 @@ static struct mt352_config dvico_fusionhdtv_dual = { .demod_init = dvico_dual_demod_init, }; -#if defined(CONFIG_VIDEO_CX88_VP3054) || defined(CONFIG_VIDEO_CX88_VP3054_MODULE) +#if defined(CONFIG_VIDEO_CX88_VP3054) || (defined(CONFIG_VIDEO_CX88_VP3054_MODULE) && defined(MODULE)) static int dntv_live_dvbt_pro_demod_init(struct dvb_frontend* fe) { static u8 clock_config [] = { 0x89, 0x38, 0x38 }; @@ -223,64 +221,6 @@ static int dntv_live_dvbt_pro_demod_init(struct dvb_frontend* fe) return 0; } -static int philips_fmd1216_pll_init(struct dvb_frontend *fe) -{ - struct cx8802_dev *dev= fe->dvb->priv; - - /* this message is to set up ATC and ALC */ - static u8 fmd1216_init[] = { 0x0b, 0xdc, 0x9c, 0xa0 }; - struct i2c_msg msg = - { .addr = dev->core->pll_addr, .flags = 0, - .buf = fmd1216_init, .len = sizeof(fmd1216_init) }; - int err; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if ((err = i2c_transfer(&dev->core->i2c_adap, &msg, 1)) != 1) { - if (err < 0) - return err; - else - return -EREMOTEIO; - } - - return 0; -} - -static int dntv_live_dvbt_pro_tuner_set_params(struct dvb_frontend* fe, - struct dvb_frontend_parameters* params) -{ - struct cx8802_dev *dev= fe->dvb->priv; - u8 buf[4]; - struct i2c_msg msg = - { .addr = dev->core->pll_addr, .flags = 0, - .buf = buf, .len = 4 }; - int err; - - /* Switch PLL to DVB mode */ - err = philips_fmd1216_pll_init(fe); - if (err) - return err; - - /* Tune PLL */ - dvb_pll_configure(dev->core->pll_desc, buf, - params->frequency, - params->u.ofdm.bandwidth); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if ((err = i2c_transfer(&dev->core->i2c_adap, &msg, 1)) != 1) { - - printk(KERN_WARNING "cx88-dvb: %s error " - "(addr %02x <- %02x, err = %i)\n", - __FUNCTION__, dev->core->pll_addr, buf[0], err); - if (err < 0) - return err; - else - return -EREMOTEIO; - } - - return 0; -} - static struct mt352_config dntv_live_dvbt_pro_config = { .demod_address = 0x0f, .no_tuner = 1, @@ -370,18 +310,8 @@ static int nxt200x_set_ts_param(struct dvb_frontend* fe, int is_punctured) return 0; } -static int nxt200x_set_pll_input(u8* buf, int input) -{ - if (input) - buf[3] |= 0x08; - else - buf[3] &= ~0x08; - return 0; -} - static struct nxt200x_config ati_hdtvwonder = { .demod_address = 0x0a, - .set_pll_input = nxt200x_set_pll_input, .set_ts_params = nxt200x_set_ts_param, }; @@ -456,7 +386,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, &dev->core->i2c_adap, - &dvb_pll_thomson_dtt759x); + DVB_PLL_THOMSON_DTT759X); } break; case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1: @@ -469,7 +399,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x60, &dev->core->i2c_adap, - &dvb_pll_thomson_dtt7579); + DVB_PLL_THOMSON_DTT7579); } break; case CX88_BOARD_WINFAST_DTV2000H: @@ -482,7 +412,7 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - &dev->core->i2c_adap, &dvb_pll_fmd1216me); + &dev->core->i2c_adap, DVB_PLL_FMD1216ME); } break; case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PLUS: @@ -491,7 +421,7 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x60, - NULL, &dvb_pll_thomson_dtt7579); + NULL, DVB_PLL_THOMSON_DTT7579); break; } /* ZL10353 replaces MT352 on later cards */ @@ -500,7 +430,7 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x60, - NULL, &dvb_pll_thomson_dtt7579); + NULL, DVB_PLL_THOMSON_DTT7579); } break; case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL: @@ -511,7 +441,7 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - NULL, &dvb_pll_thomson_dtt7579); + NULL, DVB_PLL_THOMSON_DTT7579); break; } /* ZL10353 replaces MT352 on later cards */ @@ -520,7 +450,7 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - NULL, &dvb_pll_thomson_dtt7579); + NULL, DVB_PLL_THOMSON_DTT7579); } break; case CX88_BOARD_DVICO_FUSIONHDTV_DVB_T1: @@ -529,7 +459,7 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - NULL, &dvb_pll_lg_z201); + NULL, DVB_PLL_LG_Z201); } break; case CX88_BOARD_KWORLD_DVB_T: @@ -540,17 +470,16 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - NULL, &dvb_pll_unknown_1); + NULL, DVB_PLL_UNKNOWN_1); } break; case CX88_BOARD_DNTV_LIVE_DVB_T_PRO: -#if defined(CONFIG_VIDEO_CX88_VP3054) || defined(CONFIG_VIDEO_CX88_VP3054_MODULE) - dev->core->pll_addr = 0x61; - dev->core->pll_desc = &dvb_pll_fmd1216me; +#if defined(CONFIG_VIDEO_CX88_VP3054) || (defined(CONFIG_VIDEO_CX88_VP3054_MODULE) && defined(MODULE)) dev->dvb.frontend = dvb_attach(mt352_attach, &dntv_live_dvbt_pro_config, &((struct vp3054_i2c_state *)dev->card_priv)->adap); if (dev->dvb.frontend != NULL) { - dev->dvb.frontend->ops.tuner_ops.set_params = dntv_live_dvbt_pro_tuner_set_params; + dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, + &dev->core->i2c_adap, DVB_PLL_FMD1216ME); } #else printk("%s: built without vp3054 support\n", dev->core->name); @@ -563,7 +492,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, &dev->core->i2c_adap, - &dvb_pll_thomson_fe6600); + DVB_PLL_THOMSON_FE6600); } break; case CX88_BOARD_PCHDTV_HD3000: @@ -572,7 +501,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, &dev->core->i2c_adap, - &dvb_pll_thomson_dtt761x); + DVB_PLL_THOMSON_DTT761X); } break; case CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q: @@ -594,7 +523,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, &dev->core->i2c_adap, - &dvb_pll_microtune_4042); + DVB_PLL_MICROTUNE_4042); } } break; @@ -614,7 +543,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, &dev->core->i2c_adap, - &dvb_pll_thomson_dtt761x); + DVB_PLL_THOMSON_DTT761X); } } break; @@ -634,7 +563,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, &dev->core->i2c_adap, - &dvb_pll_lg_tdvs_h06xf); + DVB_PLL_LG_TDVS_H06XF); } } break; @@ -654,7 +583,7 @@ static int dvb_register(struct cx8802_dev *dev) if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, &dev->core->i2c_adap, - &dvb_pll_lg_tdvs_h06xf); + DVB_PLL_LG_TDVS_H06XF); } } break; @@ -664,7 +593,7 @@ static int dvb_register(struct cx8802_dev *dev) &dev->core->i2c_adap); if (dev->dvb.frontend != NULL) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - NULL, &dvb_pll_tuv1236d); + NULL, DVB_PLL_TUV1236D); } break; case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1: @@ -705,10 +634,6 @@ static int dvb_register(struct cx8802_dev *dev) return -1; } - if (dev->core->pll_desc) { - dev->dvb.frontend->ops.info.frequency_min = dev->core->pll_desc->min; - dev->dvb.frontend->ops.info.frequency_max = dev->core->pll_desc->max; - } /* Ensure all frontends negotiate bus access */ dev->dvb.frontend->ops.ts_bus_ctrl = cx88_dvb_bus_ctrl; @@ -778,11 +703,10 @@ static int cx8802_dvb_probe(struct cx8802_driver *drv) if (!(cx88_boards[core->board].mpeg & CX88_MPEG_DVB)) goto fail_core; -#if defined(CONFIG_VIDEO_CX88_VP3054) || defined(CONFIG_VIDEO_CX88_VP3054_MODULE) + /* If vp3054 isn't enabled, a stub will just return 0 */ err = vp3054_i2c_probe(dev); if (0 != err) goto fail_core; -#endif /* dvb stuff */ printk("%s/2: cx2388x based dvb card\n", core->name); @@ -807,9 +731,7 @@ static int cx8802_dvb_remove(struct cx8802_driver *drv) /* dvb */ videobuf_dvb_unregister(&dev->dvb); -#if defined(CONFIG_VIDEO_CX88_VP3054) || defined(CONFIG_VIDEO_CX88_VP3054_MODULE) vp3054_i2c_remove(dev); -#endif return 0; } diff --git a/drivers/media/video/cx88/cx88-i2c.c b/drivers/media/video/cx88/cx88-i2c.c index 7919a1f9da06..78bbcfab9670 100644 --- a/drivers/media/video/cx88/cx88-i2c.c +++ b/drivers/media/video/cx88/cx88-i2c.c @@ -160,7 +160,7 @@ void cx88_call_i2c_clients(struct cx88_core *core, unsigned int cmd, void *arg) i2c_clients_command(&core->i2c_adap, cmd, arg); } -static struct i2c_algo_bit_data cx8800_i2c_algo_template = { +static const struct i2c_algo_bit_data cx8800_i2c_algo_template = { .setsda = cx8800_bit_setsda, .setscl = cx8800_bit_setscl, .getsda = cx8800_bit_getsda, @@ -171,18 +171,6 @@ static struct i2c_algo_bit_data cx8800_i2c_algo_template = { /* ----------------------------------------------------------------------- */ -static struct i2c_adapter cx8800_i2c_adap_template = { - .name = "cx2388x", - .owner = THIS_MODULE, - .id = I2C_HW_B_CX2388x, - .client_register = attach_inform, - .client_unregister = detach_inform, -}; - -static struct i2c_client cx8800_i2c_client_template = { - .name = "cx88xx internal", -}; - static char *i2c_devs[128] = { [ 0x1c >> 1 ] = "lgdt330x", [ 0x86 >> 1 ] = "tda9887/cx22702", @@ -212,14 +200,9 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci) /* Prevents usage of invalid delay values */ if (i2c_udelay<5) i2c_udelay=5; - cx8800_i2c_algo_template.udelay=i2c_udelay; - memcpy(&core->i2c_adap, &cx8800_i2c_adap_template, - sizeof(core->i2c_adap)); memcpy(&core->i2c_algo, &cx8800_i2c_algo_template, sizeof(core->i2c_algo)); - memcpy(&core->i2c_client, &cx8800_i2c_client_template, - sizeof(core->i2c_client)); if (core->tuner_type != TUNER_ABSENT) core->i2c_adap.class |= I2C_CLASS_TV_ANALOG; @@ -228,10 +211,16 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci) core->i2c_adap.dev.parent = &pci->dev; strlcpy(core->i2c_adap.name,core->name,sizeof(core->i2c_adap.name)); + core->i2c_adap.owner = THIS_MODULE; + core->i2c_adap.id = I2C_HW_B_CX2388x; + core->i2c_adap.client_register = attach_inform; + core->i2c_adap.client_unregister = detach_inform; + core->i2c_algo.udelay = i2c_udelay; core->i2c_algo.data = core; i2c_set_adapdata(&core->i2c_adap,core); core->i2c_adap.algo_data = &core->i2c_algo; core->i2c_client.adapter = &core->i2c_adap; + strlcpy(core->i2c_client.name, "cx88xx internal", I2C_NAME_SIZE); cx8800_bit_setscl(core,1); cx8800_bit_setsda(core,1); diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c index 8136673fe9e8..f5d4a565346e 100644 --- a/drivers/media/video/cx88/cx88-input.c +++ b/drivers/media/video/cx88/cx88-input.c @@ -74,7 +74,8 @@ static void cx88_ir_handle_key(struct cx88_IR *ir) /* read gpio value */ gpio = cx_read(ir->gpio_addr); - if (core->board == CX88_BOARD_NPGTECH_REALTV_TOP10FM) { + switch (core->board) { + case CX88_BOARD_NPGTECH_REALTV_TOP10FM: /* This board apparently uses a combination of 2 GPIO to represent the keys. Additionally, the second GPIO can be used for parity. @@ -90,9 +91,14 @@ static void cx88_ir_handle_key(struct cx88_IR *ir) auxgpio = cx_read(MO_GP1_IO); /* Take out the parity part */ gpio=(gpio & 0x7fd) + (auxgpio & 0xef); - } else + break; + case CX88_BOARD_WINFAST_DTV1000: + gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900); auxgpio = gpio; - + break; + default: + auxgpio = gpio; + } if (ir->polling) { if (ir->last_gpio == auxgpio) return; @@ -148,20 +154,16 @@ static void ir_timer(unsigned long data) static void cx88_ir_work(struct work_struct *work) { struct cx88_IR *ir = container_of(work, struct cx88_IR, work); - unsigned long timeout; cx88_ir_handle_key(ir); - timeout = jiffies + (ir->polling * HZ / 1000); - mod_timer(&ir->timer, timeout); + mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling)); } static void cx88_ir_start(struct cx88_core *core, struct cx88_IR *ir) { if (ir->polling) { + setup_timer(&ir->timer, ir_timer, (unsigned long)ir); INIT_WORK(&ir->work, cx88_ir_work); - init_timer(&ir->timer); - ir->timer.function = ir_timer; - ir->timer.data = (unsigned long)ir; schedule_work(&ir->work); } if (ir->sampling) { @@ -222,7 +224,6 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) case CX88_BOARD_HAUPPAUGE_NOVASE2_S1: case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1: case CX88_BOARD_HAUPPAUGE_HVR1100: - case CX88_BOARD_HAUPPAUGE_HVR1300: case CX88_BOARD_HAUPPAUGE_HVR3000: ir_codes = ir_codes_hauppauge_new; ir_type = IR_TYPE_RC5; @@ -236,6 +237,7 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) ir->polling = 50; /* ms */ break; case CX88_BOARD_WINFAST2000XP_EXPERT: + case CX88_BOARD_WINFAST_DTV1000: ir_codes = ir_codes_winfast; ir->gpio_addr = MO_GP0_IO; ir->mask_keycode = 0x8f8; @@ -328,7 +330,7 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci) input_dev->id.vendor = pci->vendor; input_dev->id.product = pci->device; } - input_dev->cdev.dev = &pci->dev; + input_dev->dev.parent = &pci->dev; /* record handles to ourself */ ir->core = core; core->ir = ir; @@ -442,7 +444,6 @@ void cx88_ir_irq(struct cx88_core *core) case CX88_BOARD_HAUPPAUGE_NOVASE2_S1: case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1: case CX88_BOARD_HAUPPAUGE_HVR1100: - case CX88_BOARD_HAUPPAUGE_HVR1300: case CX88_BOARD_HAUPPAUGE_HVR3000: ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7); ir_dprintk("biphase decoded: %x\n", ircode); diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c index 543b05ebc0e7..317a2a3f9cc1 100644 --- a/drivers/media/video/cx88/cx88-mpeg.c +++ b/drivers/media/video/cx88/cx88-mpeg.c @@ -336,7 +336,7 @@ static void cx8802_timeout(unsigned long data) { struct cx8802_dev *dev = (struct cx8802_dev*)data; - dprintk(0, "%s\n",__FUNCTION__); + dprintk(1, "%s\n",__FUNCTION__); if (debug) cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH28]); diff --git a/drivers/media/video/cx88/cx88-tvaudio.c b/drivers/media/video/cx88/cx88-tvaudio.c index 259ea08e784f..1cc2d286a1cb 100644 --- a/drivers/media/video/cx88/cx88-tvaudio.c +++ b/drivers/media/video/cx88/cx88-tvaudio.c @@ -906,6 +906,7 @@ int cx88_audio_thread(void *data) u32 mode = 0; dprintk("cx88: tvaudio thread started\n"); + set_freezable(); for (;;) { msleep_interruptible(1000); if (kthread_should_stop()) diff --git a/drivers/media/video/cx88/cx88-vp3054-i2c.c b/drivers/media/video/cx88/cx88-vp3054-i2c.c index 82bc3a28aa22..cd0877636a32 100644 --- a/drivers/media/video/cx88/cx88-vp3054-i2c.c +++ b/drivers/media/video/cx88/cx88-vp3054-i2c.c @@ -94,7 +94,7 @@ static int vp3054_bit_getsda(void *data) /* ----------------------------------------------------------------------- */ -static struct i2c_algo_bit_data vp3054_i2c_algo_template = { +static const struct i2c_algo_bit_data vp3054_i2c_algo_template = { .setsda = vp3054_bit_setsda, .setscl = vp3054_bit_setscl, .getsda = vp3054_bit_getsda, @@ -105,12 +105,6 @@ static struct i2c_algo_bit_data vp3054_i2c_algo_template = { /* ----------------------------------------------------------------------- */ -static struct i2c_adapter vp3054_i2c_adap_template = { - .name = "cx2388x", - .owner = THIS_MODULE, - .id = I2C_HW_B_CX2388x, -}; - int vp3054_i2c_probe(struct cx8802_dev *dev) { struct cx88_core *core = dev->core; @@ -125,8 +119,6 @@ int vp3054_i2c_probe(struct cx8802_dev *dev) return -ENOMEM; vp3054_i2c = dev->card_priv; - memcpy(&vp3054_i2c->adap, &vp3054_i2c_adap_template, - sizeof(vp3054_i2c->adap)); memcpy(&vp3054_i2c->algo, &vp3054_i2c_algo_template, sizeof(vp3054_i2c->algo)); @@ -135,6 +127,8 @@ int vp3054_i2c_probe(struct cx8802_dev *dev) vp3054_i2c->adap.dev.parent = &dev->pci->dev; strlcpy(vp3054_i2c->adap.name, core->name, sizeof(vp3054_i2c->adap.name)); + vp3054_i2c->adap.owner = THIS_MODULE; + vp3054_i2c->adap.id = I2C_HW_B_CX2388x; vp3054_i2c->algo.data = dev; i2c_set_adapdata(&vp3054_i2c->adap, dev); vp3054_i2c->adap.algo_data = &vp3054_i2c->algo; diff --git a/drivers/media/video/cx88/cx88-vp3054-i2c.h b/drivers/media/video/cx88/cx88-vp3054-i2c.h index 637a7d232238..be99c931dc3e 100644 --- a/drivers/media/video/cx88/cx88-vp3054-i2c.h +++ b/drivers/media/video/cx88/cx88-vp3054-i2c.h @@ -30,5 +30,12 @@ struct vp3054_i2c_state { }; /* ----------------------------------------------------------------------- */ +#if defined(CONFIG_VIDEO_CX88_VP3054) || (defined(CONFIG_VIDEO_CX88_VP3054_MODULE) && defined(MODULE)) int vp3054_i2c_probe(struct cx8802_dev *dev); void vp3054_i2c_remove(struct cx8802_dev *dev); +#else +static inline int vp3054_i2c_probe(struct cx8802_dev *dev) +{ return 0; } +static inline void vp3054_i2c_remove(struct cx8802_dev *dev) +{ } +#endif diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h index 738d4f20c580..c4f656ec46b0 100644 --- a/drivers/media/video/cx88/cx88.h +++ b/drivers/media/video/cx88/cx88.h @@ -209,6 +209,7 @@ extern struct sram_channel cx88_sram_channels[]; #define CX88_BOARD_NORWOOD_MICRO 54 #define CX88_BOARD_TE_DTV_250_OEM_SWANN 55 #define CX88_BOARD_HAUPPAUGE_HVR1300 56 +#define CX88_BOARD_ADSTECH_PTV_390 57 enum cx88_itype { CX88_VMUX_COMPOSITE1 = 1, @@ -316,8 +317,6 @@ struct cx88_core { /* config info -- dvb */ #if defined(CONFIG_VIDEO_BUF_DVB) || defined(CONFIG_VIDEO_BUF_DVB_MODULE) - struct dvb_pll_desc *pll_desc; - unsigned int pll_addr; int (*prev_set_voltage)(struct dvb_frontend* fe, fe_sec_voltage_t voltage); #endif @@ -463,13 +462,10 @@ struct cx8802_dev { u32 mailbox; int width; int height; - int fw_size; #if defined(CONFIG_VIDEO_BUF_DVB) || defined(CONFIG_VIDEO_BUF_DVB_MODULE) /* for dvb only */ struct videobuf_dvb dvb; - void* fe_handle; - int (*fe_release)(void *handle); void *card_priv; #endif diff --git a/drivers/media/video/et61x251/Kconfig b/drivers/media/video/et61x251/Kconfig index 664676f44068..dcc1a0335440 100644 --- a/drivers/media/video/et61x251/Kconfig +++ b/drivers/media/video/et61x251/Kconfig @@ -1,6 +1,6 @@ config USB_ET61X251 tristate "USB ET61X[12]51 PC Camera Controller support" - depends on VIDEO_V4L1 + depends on VIDEO_V4L2 ---help--- Say Y here if you want support for cameras based on Etoms ET61X151 or ET61X251 PC Camera Controllers. diff --git a/drivers/media/video/et61x251/et61x251.h b/drivers/media/video/et61x251/et61x251.h index 262f98e12409..02c741d8f85a 100644 --- a/drivers/media/video/et61x251/et61x251.h +++ b/drivers/media/video/et61x251/et61x251.h @@ -36,6 +36,7 @@ #include <linux/mutex.h> #include <linux/stddef.h> #include <linux/string.h> +#include <linux/kref.h> #include "et61x251_sensor.h" @@ -134,7 +135,7 @@ struct et61x251_module_param { }; static DEFINE_MUTEX(et61x251_sysfs_lock); -static DECLARE_RWSEM(et61x251_disconnect); +static DECLARE_RWSEM(et61x251_dev_lock); struct et61x251_device { struct video_device* v4ldev; @@ -158,12 +159,14 @@ struct et61x251_device { struct et61x251_sysfs_attr sysfs; struct et61x251_module_param module_param; + struct kref kref; enum et61x251_dev_state state; u8 users; - struct mutex dev_mutex, fileop_mutex; + struct completion probe; + struct mutex open_mutex, fileop_mutex; spinlock_t queue_lock; - wait_queue_head_t open, wait_frame, wait_stream; + wait_queue_head_t wait_open, wait_frame, wait_stream; }; /*****************************************************************************/ @@ -177,7 +180,7 @@ et61x251_match_id(struct et61x251_device* cam, const struct usb_device_id *id) void et61x251_attach_sensor(struct et61x251_device* cam, - struct et61x251_sensor* sensor) + const struct et61x251_sensor* sensor) { memcpy(&cam->sensor, sensor, sizeof(struct et61x251_sensor)); } @@ -195,8 +198,8 @@ do { \ else if ((level) == 2) \ dev_info(&cam->usbdev->dev, fmt "\n", ## args); \ else if ((level) >= 3) \ - dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ - __FUNCTION__, __LINE__ , ## args); \ + dev_info(&cam->usbdev->dev, "[%s:%s:%d] " fmt "\n", \ + __FILE__, __FUNCTION__, __LINE__ , ## args); \ } \ } while (0) # define KDBG(level, fmt, args...) \ @@ -205,8 +208,8 @@ do { \ if ((level) == 1 || (level) == 2) \ pr_info("et61x251: " fmt "\n", ## args); \ else if ((level) == 3) \ - pr_debug("et61x251: [%s:%d] " fmt "\n", __FUNCTION__, \ - __LINE__ , ## args); \ + pr_debug("sn9c102: [%s:%s:%d] " fmt "\n", __FILE__, \ + __FUNCTION__, __LINE__ , ## args); \ } \ } while (0) # define V4LDBG(level, name, cmd) \ @@ -222,8 +225,8 @@ do { \ #undef PDBG #define PDBG(fmt, args...) \ -dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ - __FUNCTION__, __LINE__ , ## args) +dev_info(&cam->usbdev->dev, "[%s:%s:%d] " fmt "\n", __FILE__, __FUNCTION__, \ + __LINE__ , ## args) #undef PDBGG #define PDBGG(fmt, args...) do {;} while(0) /* placeholder */ diff --git a/drivers/media/video/et61x251/et61x251_core.c b/drivers/media/video/et61x251/et61x251_core.c index a6525513cd1e..585bd1fe0765 100644 --- a/drivers/media/video/et61x251/et61x251_core.c +++ b/drivers/media/video/et61x251/et61x251_core.c @@ -45,11 +45,11 @@ #define ET61X251_MODULE_NAME "V4L2 driver for ET61X[12]51 " \ "PC Camera Controllers" -#define ET61X251_MODULE_AUTHOR "(C) 2006 Luca Risolia" +#define ET61X251_MODULE_AUTHOR "(C) 2006-2007 Luca Risolia" #define ET61X251_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" #define ET61X251_MODULE_LICENSE "GPL" -#define ET61X251_MODULE_VERSION "1:1.04" -#define ET61X251_MODULE_VERSION_CODE KERNEL_VERSION(1, 1, 4) +#define ET61X251_MODULE_VERSION "1:1.09" +#define ET61X251_MODULE_VERSION_CODE KERNEL_VERSION(1, 1, 9) /*****************************************************************************/ @@ -245,7 +245,8 @@ int et61x251_read_reg(struct et61x251_device* cam, u16 index) static int -et61x251_i2c_wait(struct et61x251_device* cam, struct et61x251_sensor* sensor) +et61x251_i2c_wait(struct et61x251_device* cam, + const struct et61x251_sensor* sensor) { int i, r; @@ -270,7 +271,7 @@ et61x251_i2c_wait(struct et61x251_device* cam, struct et61x251_sensor* sensor) int et61x251_i2c_try_read(struct et61x251_device* cam, - struct et61x251_sensor* sensor, u8 address) + const struct et61x251_sensor* sensor, u8 address) { struct usb_device* udev = cam->usbdev; u8* data = cam->control_buffer; @@ -303,7 +304,8 @@ et61x251_i2c_try_read(struct et61x251_device* cam, int et61x251_i2c_try_write(struct et61x251_device* cam, - struct et61x251_sensor* sensor, u8 address, u8 value) + const struct et61x251_sensor* sensor, u8 address, + u8 value) { struct usb_device* udev = cam->usbdev; u8* data = cam->control_buffer; @@ -615,7 +617,7 @@ static int et61x251_start_transfer(struct et61x251_device* cam) return 0; free_urbs: - for (i = 0; (i < ET61X251_URBS) && cam->urb[i]; i++) + for (i = 0; (i < ET61X251_URBS) && cam->urb[i]; i++) usb_free_urb(cam->urb[i]); free_buffers: @@ -682,7 +684,7 @@ static u8 et61x251_strtou8(const char* buff, size_t len, ssize_t* count) if (len < 4) { strncpy(str, buff, len); - str[len+1] = '\0'; + str[len] = '\0'; } else { strncpy(str, buff, 4); str[4] = '\0'; @@ -977,30 +979,30 @@ static CLASS_DEVICE_ATTR(i2c_val, S_IRUGO | S_IWUSR, static int et61x251_create_sysfs(struct et61x251_device* cam) { - struct video_device *v4ldev = cam->v4ldev; + struct class_device *classdev = &(cam->v4ldev->class_dev); int err = 0; - if ((err = video_device_create_file(v4ldev, &class_device_attr_reg))) + if ((err = class_device_create_file(classdev, &class_device_attr_reg))) goto err_out; - if ((err = video_device_create_file(v4ldev, &class_device_attr_val))) + if ((err = class_device_create_file(classdev, &class_device_attr_val))) goto err_reg; if (cam->sensor.sysfs_ops) { - if ((err = video_device_create_file(v4ldev, + if ((err = class_device_create_file(classdev, &class_device_attr_i2c_reg))) goto err_val; - if ((err = video_device_create_file(v4ldev, + if ((err = class_device_create_file(classdev, &class_device_attr_i2c_val))) goto err_i2c_reg; } err_i2c_reg: if (cam->sensor.sysfs_ops) - video_device_remove_file(v4ldev, &class_device_attr_i2c_reg); + class_device_remove_file(classdev, &class_device_attr_i2c_reg); err_val: - video_device_remove_file(v4ldev, &class_device_attr_val); + class_device_remove_file(classdev, &class_device_attr_val); err_reg: - video_device_remove_file(v4ldev, &class_device_attr_reg); + class_device_remove_file(classdev, &class_device_attr_reg); err_out: return err; } @@ -1103,7 +1105,8 @@ static int et61x251_init(struct et61x251_device* cam) int err = 0; if (!(cam->state & DEV_INITIALIZED)) { - init_waitqueue_head(&cam->open); + mutex_init(&cam->open_mutex); + init_waitqueue_head(&cam->wait_open); qctrl = s->qctrl; rect = &(s->cropcap.defrect); cam->compression.quality = ET61X251_COMPRESSION_QUALITY; @@ -1177,64 +1180,80 @@ static int et61x251_init(struct et61x251_device* cam) return 0; } +/*****************************************************************************/ -static void et61x251_release_resources(struct et61x251_device* cam) +static void et61x251_release_resources(struct kref *kref) { + struct et61x251_device *cam; + mutex_lock(&et61x251_sysfs_lock); + cam = container_of(kref, struct et61x251_device, kref); + DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor); video_set_drvdata(cam->v4ldev, NULL); video_unregister_device(cam->v4ldev); + usb_put_dev(cam->usbdev); + kfree(cam->control_buffer); + kfree(cam); mutex_unlock(&et61x251_sysfs_lock); - - kfree(cam->control_buffer); } -/*****************************************************************************/ static int et61x251_open(struct inode* inode, struct file* filp) { struct et61x251_device* cam; int err = 0; - /* - This is the only safe way to prevent race conditions with - disconnect - */ - if (!down_read_trylock(&et61x251_disconnect)) + if (!down_read_trylock(&et61x251_dev_lock)) return -ERESTARTSYS; cam = video_get_drvdata(video_devdata(filp)); - if (mutex_lock_interruptible(&cam->dev_mutex)) { - up_read(&et61x251_disconnect); + if (wait_for_completion_interruptible(&cam->probe)) { + up_read(&et61x251_dev_lock); return -ERESTARTSYS; } + kref_get(&cam->kref); + + if (mutex_lock_interruptible(&cam->open_mutex)) { + kref_put(&cam->kref, et61x251_release_resources); + up_read(&et61x251_dev_lock); + return -ERESTARTSYS; + } + + if (cam->state & DEV_DISCONNECTED) { + DBG(1, "Device not present"); + err = -ENODEV; + goto out; + } + if (cam->users) { - DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor); + DBG(2, "Device /dev/video%d is already in use", + cam->v4ldev->minor); + DBG(3, "Simultaneous opens are not supported"); if ((filp->f_flags & O_NONBLOCK) || (filp->f_flags & O_NDELAY)) { err = -EWOULDBLOCK; goto out; } - mutex_unlock(&cam->dev_mutex); - err = wait_event_interruptible_exclusive(cam->open, - cam->state & DEV_DISCONNECTED + DBG(2, "A blocking open() has been requested. Wait for the " + "device to be released..."); + up_read(&et61x251_dev_lock); + err = wait_event_interruptible_exclusive(cam->wait_open, + (cam->state & DEV_DISCONNECTED) || !cam->users); - if (err) { - up_read(&et61x251_disconnect); - return err; - } + down_read(&et61x251_dev_lock); + if (err) + goto out; if (cam->state & DEV_DISCONNECTED) { - up_read(&et61x251_disconnect); - return -ENODEV; + err = -ENODEV; + goto out; } - mutex_lock(&cam->dev_mutex); } - if (cam->state & DEV_MISCONFIGURED) { err = et61x251_init(cam); if (err) { @@ -1259,36 +1278,32 @@ static int et61x251_open(struct inode* inode, struct file* filp) DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor); out: - mutex_unlock(&cam->dev_mutex); - up_read(&et61x251_disconnect); + mutex_unlock(&cam->open_mutex); + if (err) + kref_put(&cam->kref, et61x251_release_resources); + up_read(&et61x251_dev_lock); return err; } static int et61x251_release(struct inode* inode, struct file* filp) { - struct et61x251_device* cam = video_get_drvdata(video_devdata(filp)); + struct et61x251_device* cam; - mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */ + down_write(&et61x251_dev_lock); - et61x251_stop_transfer(cam); + cam = video_get_drvdata(video_devdata(filp)); + et61x251_stop_transfer(cam); et61x251_release_buffers(cam); - - if (cam->state & DEV_DISCONNECTED) { - et61x251_release_resources(cam); - usb_put_dev(cam->usbdev); - mutex_unlock(&cam->dev_mutex); - kfree(cam); - return 0; - } - cam->users--; - wake_up_interruptible_nr(&cam->open, 1); + wake_up_interruptible_nr(&cam->wait_open, 1); DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor); - mutex_unlock(&cam->dev_mutex); + kref_put(&cam->kref, et61x251_release_resources); + + up_write(&et61x251_dev_lock); return 0; } @@ -1324,7 +1339,7 @@ et61x251_read(struct file* filp, char __user * buf, DBG(3, "Close and open the device again to choose the read " "method"); mutex_unlock(&cam->fileop_mutex); - return -EINVAL; + return -EBUSY; } if (cam->io == IO_NONE) { @@ -1504,7 +1519,12 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma) return -EIO; } - if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || + if (!(vma->vm_flags & (VM_WRITE | VM_READ))) { + mutex_unlock(&cam->fileop_mutex); + return -EACCES; + } + + if (cam->io != IO_MMAP || size != PAGE_ALIGN(cam->frame[0].buf.length)) { mutex_unlock(&cam->fileop_mutex); return -EINVAL; @@ -1535,7 +1555,6 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma) vma->vm_ops = &et61x251_vm_ops; vma->vm_private_data = &cam->frame[i]; - et61x251_vm_open(vma); mutex_unlock(&cam->fileop_mutex); @@ -1764,7 +1783,7 @@ et61x251_vidioc_s_crop(struct et61x251_device* cam, void __user * arg) if (cam->frame[i].vma_use_count) { DBG(3, "VIDIOC_S_CROP failed. " "Unmap the buffers first."); - return -EINVAL; + return -EBUSY; } /* Preserve R,G or B origin */ @@ -1921,6 +1940,8 @@ et61x251_vidioc_g_fmt(struct et61x251_device* cam, void __user * arg) if (format.type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; + pfmt->colorspace = (pfmt->pixelformat == V4L2_PIX_FMT_ET61X251) ? + 0 : V4L2_COLORSPACE_SRGB; pfmt->bytesperline = (pfmt->pixelformat==V4L2_PIX_FMT_ET61X251) ? 0 : (pfmt->width * pfmt->priv) / 8; pfmt->sizeimage = pfmt->height * ((pfmt->width*pfmt->priv)/8); @@ -1996,6 +2017,8 @@ et61x251_vidioc_try_s_fmt(struct et61x251_device* cam, unsigned int cmd, pix->pixelformat != V4L2_PIX_FMT_SBGGR8) pix->pixelformat = pfmt->pixelformat; pix->priv = pfmt->priv; /* bpp */ + pix->colorspace = (pix->pixelformat == V4L2_PIX_FMT_ET61X251) ? + 0 : V4L2_COLORSPACE_SRGB; pix->colorspace = pfmt->colorspace; pix->bytesperline = (pix->pixelformat == V4L2_PIX_FMT_ET61X251) ? 0 : (pix->width * pix->priv) / 8; @@ -2013,7 +2036,7 @@ et61x251_vidioc_try_s_fmt(struct et61x251_device* cam, unsigned int cmd, if (cam->frame[i].vma_use_count) { DBG(3, "VIDIOC_S_FMT failed. " "Unmap the buffers first."); - return -EINVAL; + return -EBUSY; } if (cam->stream == STREAM_ON) @@ -2129,14 +2152,14 @@ et61x251_vidioc_reqbufs(struct et61x251_device* cam, void __user * arg) if (cam->io == IO_READ) { DBG(3, "Close and open the device again to choose the mmap " "I/O method"); - return -EINVAL; + return -EBUSY; } for (i = 0; i < cam->nbuffers; i++) if (cam->frame[i].vma_use_count) { DBG(3, "VIDIOC_REQBUFS failed. " "Previous buffers are still mapped."); - return -EINVAL; + return -EBUSY; } if (cam->stream == STREAM_ON) @@ -2284,9 +2307,6 @@ et61x251_vidioc_streamon(struct et61x251_device* cam, void __user * arg) if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP) return -EINVAL; - if (list_empty(&cam->inqueue)) - return -EINVAL; - cam->stream = STREAM_ON; DBG(3, "Stream on"); @@ -2535,8 +2555,6 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) goto fail; } - mutex_init(&cam->dev_mutex); - DBG(2, "ET61X[12]51 PC Camera Controller detected " "(vid/pid 0x%04X:0x%04X)",id->idVendor, id->idProduct); @@ -2568,7 +2586,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) cam->v4ldev->release = video_device_release; video_set_drvdata(cam->v4ldev, cam); - mutex_lock(&cam->dev_mutex); + init_completion(&cam->probe); err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER, video_nr[dev_nr]); @@ -2578,7 +2596,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) DBG(1, "Free /dev/videoX node not found"); video_nr[dev_nr] = -1; dev_nr = (dev_nr < ET61X251_MAX_DEVICES-1) ? dev_nr+1 : 0; - mutex_unlock(&cam->dev_mutex); + complete_all(&cam->probe); goto fail; } @@ -2599,11 +2617,15 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) "device controlling. Error #%d", err); #else DBG(2, "Optional device control through 'sysfs' interface disabled"); + DBG(3, "Compile the kernel with the 'CONFIG_VIDEO_ADV_DEBUG' " + "configuration option to enable it."); #endif usb_set_intfdata(intf, cam); + kref_init(&cam->kref); + usb_get_dev(cam->usbdev); - mutex_unlock(&cam->dev_mutex); + complete_all(&cam->probe); return 0; @@ -2620,40 +2642,31 @@ fail: static void et61x251_usb_disconnect(struct usb_interface* intf) { - struct et61x251_device* cam = usb_get_intfdata(intf); - - if (!cam) - return; + struct et61x251_device* cam; - down_write(&et61x251_disconnect); + down_write(&et61x251_dev_lock); - mutex_lock(&cam->dev_mutex); + cam = usb_get_intfdata(intf); DBG(2, "Disconnecting %s...", cam->v4ldev->name); - wake_up_interruptible_all(&cam->open); - if (cam->users) { DBG(2, "Device /dev/video%d is open! Deregistration and " - "memory deallocation are deferred on close.", + "memory deallocation are deferred.", cam->v4ldev->minor); cam->state |= DEV_MISCONFIGURED; et61x251_stop_transfer(cam); cam->state |= DEV_DISCONNECTED; wake_up_interruptible(&cam->wait_frame); wake_up(&cam->wait_stream); - usb_get_dev(cam->usbdev); - } else { + } else cam->state |= DEV_DISCONNECTED; - et61x251_release_resources(cam); - } - mutex_unlock(&cam->dev_mutex); + wake_up_interruptible_all(&cam->wait_open); - if (!cam->users) - kfree(cam); + kref_put(&cam->kref, et61x251_release_resources); - up_write(&et61x251_disconnect); + up_write(&et61x251_dev_lock); } diff --git a/drivers/media/video/et61x251/et61x251_sensor.h b/drivers/media/video/et61x251/et61x251_sensor.h index 5fadb5de68bf..e14586330623 100644 --- a/drivers/media/video/et61x251/et61x251_sensor.h +++ b/drivers/media/video/et61x251/et61x251_sensor.h @@ -22,7 +22,7 @@ #define _ET61X251_SENSOR_H_ #include <linux/usb.h> -#include <linux/videodev.h> +#include <linux/videodev2.h> #include <linux/device.h> #include <linux/stddef.h> #include <linux/errno.h> @@ -47,7 +47,7 @@ et61x251_match_id(struct et61x251_device* cam, const struct usb_device_id *id); extern void et61x251_attach_sensor(struct et61x251_device* cam, - struct et61x251_sensor* sensor); + const struct et61x251_sensor* sensor); /*****************************************************************************/ @@ -56,10 +56,10 @@ extern int et61x251_read_reg(struct et61x251_device*, u16 index); extern int et61x251_i2c_write(struct et61x251_device*, u8 address, u8 value); extern int et61x251_i2c_read(struct et61x251_device*, u8 address); extern int et61x251_i2c_try_write(struct et61x251_device*, - struct et61x251_sensor*, u8 address, + const struct et61x251_sensor*, u8 address, u8 value); extern int et61x251_i2c_try_read(struct et61x251_device*, - struct et61x251_sensor*, u8 address); + const struct et61x251_sensor*, u8 address); extern int et61x251_i2c_raw_write(struct et61x251_device*, u8 n, u8 data1, u8 data2, u8 data3, u8 data4, u8 data5, u8 data6, u8 data7, u8 data8, u8 address); diff --git a/drivers/media/video/et61x251/et61x251_tas5130d1b.c b/drivers/media/video/et61x251/et61x251_tas5130d1b.c index b06643409842..04b7fbb310a8 100644 --- a/drivers/media/video/et61x251/et61x251_tas5130d1b.c +++ b/drivers/media/video/et61x251/et61x251_tas5130d1b.c @@ -69,7 +69,7 @@ static int tas5130d1b_set_ctrl(struct et61x251_device* cam, } -static struct et61x251_sensor tas5130d1b = { +static const struct et61x251_sensor tas5130d1b = { .name = "TAS5130D1B", .interface = ET61X251_I2C_3WIRES, .rsta = ET61X251_I2C_RSTA_STOP, diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index ed92b6f7187a..2d709e064679 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -37,6 +37,7 @@ #include <linux/errno.h> #include <linux/slab.h> #include <linux/i2c.h> +#include <linux/i2c-id.h> #include <linux/workqueue.h> #include <asm/semaphore.h> @@ -60,21 +61,22 @@ MODULE_PARM_DESC(hauppauge, "Specify Hauppauge remote: 0=black, 1=grey (defaults /* ----------------------------------------------------------------------- */ -static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +static int get_key_haup_common(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw, + int size, int offset) { - unsigned char buf[3]; + unsigned char buf[6]; int start, range, toggle, dev, code; /* poll IR chip */ - if (3 != i2c_master_recv(&ir->c,buf,3)) + if (size != i2c_master_recv(&ir->c,buf,size)) return -EIO; /* split rc5 data block ... */ - start = (buf[0] >> 7) & 1; - range = (buf[0] >> 6) & 1; - toggle = (buf[0] >> 5) & 1; - dev = buf[0] & 0x1f; - code = (buf[1] >> 2) & 0x3f; + start = (buf[offset] >> 7) & 1; + range = (buf[offset] >> 6) & 1; + toggle = (buf[offset] >> 5) & 1; + dev = buf[offset] & 0x1f; + code = (buf[offset+1] >> 2) & 0x3f; /* rc5 has two start bits * the first bit must be one @@ -96,6 +98,16 @@ static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) return 1; } +static inline int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +{ + return get_key_haup_common (ir, ir_key, ir_raw, 3, 0); +} + +static inline int get_key_haup_xvr(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +{ + return get_key_haup_common (ir, ir_key, ir_raw, 6, 3); +} + static int get_key_pixelview(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char b; @@ -270,8 +282,9 @@ static void ir_timer(unsigned long data) static void ir_work(struct work_struct *work) { struct IR_i2c *ir = container_of(work, struct IR_i2c, work); + ir_key_poll(ir); - mod_timer(&ir->timer, jiffies+HZ/10); + mod_timer(&ir->timer, jiffies + msecs_to_jiffies(100)); } /* ----------------------------------------------------------------------- */ @@ -354,9 +367,21 @@ static int ir_attach(struct i2c_adapter *adap, int addr, case 0x7a: case 0x47: case 0x71: - /* Handled by saa7134-input */ - name = "SAA713x remote"; - ir_type = IR_TYPE_OTHER; + if (adap->id == I2C_HW_B_CX2388x) { + /* Handled by cx88-input */ + name = "CX2388x remote"; + ir_type = IR_TYPE_RC5; + ir->get_key = get_key_haup_xvr; + if (hauppauge == 1) { + ir_codes = ir_codes_hauppauge_new; + } else { + ir_codes = ir_codes_rc5_tv; + } + } else { + /* Handled by saa7134-input */ + name = "SAA713x remote"; + ir_type = IR_TYPE_OTHER; + } break; default: /* shouldn't happen */ @@ -450,6 +475,7 @@ static int ir_probe(struct i2c_adapter *adap) static const int probe_bttv[] = { 0x1a, 0x18, 0x4b, 0x64, 0x30, -1}; static const int probe_saa7134[] = { 0x7a, 0x47, 0x71, -1 }; static const int probe_em28XX[] = { 0x30, 0x47, -1 }; + static const int probe_cx88[] = { 0x18, 0x71, -1 }; const int *probe = NULL; struct i2c_client c; unsigned char buf; @@ -468,6 +494,9 @@ static int ir_probe(struct i2c_adapter *adap) case I2C_HW_B_EM28XX: probe = probe_em28XX; break; + case I2C_HW_B_CX2388x: + probe = probe_cx88; + break; } if (NULL == probe) return 0; diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c index efc66355339a..4c93466a89e5 100644 --- a/drivers/media/video/ivtv/ivtv-driver.c +++ b/drivers/media/video/ivtv/ivtv-driver.c @@ -181,7 +181,7 @@ MODULE_PARM_DESC(secam, "Set SECAM standard: B, G, H, D, K, L, LC"); MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J, K"); MODULE_PARM_DESC(debug, "Debug level (bitmask). Default: errors only\n" - "\t\t\t(debug = 511 gives full debugging)"); + "\t\t\t(debug = 1023 gives full debugging)"); MODULE_PARM_DESC(ivtv_pci_latency, "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n" "\t\t\tDefault: Yes"); @@ -339,6 +339,7 @@ static void ivtv_process_eeprom(struct ivtv *itv) /* In a few cases the PCI subsystem IDs do not correctly identify the card. A better method is to check the model number from the eeprom instead. */ + case 30012 ... 30039: /* Low profile PVR250 */ case 32000 ... 32999: case 48000 ... 48099: /* 48??? range are PVR250s with a cx23415 */ case 48400 ... 48599: @@ -622,6 +623,7 @@ static int __devinit ivtv_init_struct1(struct ivtv *itv) itv->enc_mbox.max_mbox = 2; /* the encoder has 3 mailboxes (0-2) */ itv->dec_mbox.max_mbox = 1; /* the decoder has 2 mailboxes (0-1) */ + mutex_init(&itv->serialize_lock); mutex_init(&itv->i2c_bus_lock); mutex_init(&itv->udma.lock); @@ -1288,10 +1290,7 @@ static void ivtv_remove(struct pci_dev *pci_dev) IVTV_DEBUG_INFO(" Releasing irq.\n"); free_irq(itv->dev->irq, (void *)itv); - - if (itv->dev) { - ivtv_iounmap(itv); - } + ivtv_iounmap(itv); IVTV_DEBUG_INFO(" Releasing mem.\n"); release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE); @@ -1326,9 +1325,9 @@ static int module_start(void) return -1; } - if (ivtv_debug < 0 || ivtv_debug > 511) { + if (ivtv_debug < 0 || ivtv_debug > 1023) { ivtv_debug = 0; - printk(KERN_INFO "ivtv: debug value must be >= 0 and <= 511!\n"); + printk(KERN_INFO "ivtv: debug value must be >= 0 and <= 1023!\n"); } if (pci_register_driver(&ivtv_pci_driver)) { diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h index e6e56f175f3f..6c1a85f1ee1b 100644 --- a/drivers/media/video/ivtv/ivtv-driver.h +++ b/drivers/media/video/ivtv/ivtv-driver.h @@ -268,6 +268,8 @@ extern const u32 yuv_offset[4]; #define IVTV_DBGFLG_IRQ (1 << 6) #define IVTV_DBGFLG_DEC (1 << 7) #define IVTV_DBGFLG_YUV (1 << 8) +/* Flag to turn on high volume debugging */ +#define IVTV_DBGFLG_HIGHVOL (1 << 9) /* NOTE: extra space before comma in 'itv->num , ## args' is required for gcc-2.95, otherwise it won't compile. */ @@ -286,6 +288,21 @@ extern const u32 yuv_offset[4]; #define IVTV_DEBUG_DEC(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DEC, "dec", fmt , ## args) #define IVTV_DEBUG_YUV(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_YUV, "yuv", fmt , ## args) +#define IVTV_DEBUG_HIGH_VOL(x, type, fmt, args...) \ + do { \ + if (((x) & ivtv_debug) && (ivtv_debug & IVTV_DBGFLG_HIGHVOL)) \ + printk(KERN_INFO "ivtv%d " type ": " fmt, itv->num , ## args); \ + } while (0) +#define IVTV_DEBUG_HI_WARN(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_WARN, "warning", fmt , ## args) +#define IVTV_DEBUG_HI_INFO(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_INFO, "info",fmt , ## args) +#define IVTV_DEBUG_HI_API(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_API, "api", fmt , ## args) +#define IVTV_DEBUG_HI_DMA(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DMA, "dma", fmt , ## args) +#define IVTV_DEBUG_HI_IOCTL(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args) +#define IVTV_DEBUG_HI_I2C(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_I2C, "i2c", fmt , ## args) +#define IVTV_DEBUG_HI_IRQ(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IRQ, "irq", fmt , ## args) +#define IVTV_DEBUG_HI_DEC(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC, "dec", fmt , ## args) +#define IVTV_DEBUG_HI_YUV(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV, "yuv", fmt , ## args) + #define IVTV_FB_DEBUG(x, type, fmt, args...) \ do { \ if ((x) & ivtv_debug) \ @@ -650,7 +667,6 @@ struct vbi_info { /* convenience pointer to sliced struct in vbi_in union */ struct v4l2_sliced_vbi_format *sliced_in; u32 service_set_in; - u32 service_set_out; int insert_mpeg; /* Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines. @@ -723,6 +739,7 @@ struct ivtv { int search_pack_header; spinlock_t dma_reg_lock; /* lock access to DMA engine registers */ + struct mutex serialize_lock; /* lock used to serialize starting streams */ /* User based DMA for OSD */ struct ivtv_user_dma udma; diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c index 555d5e6369c3..ee7e884e9c4f 100644 --- a/drivers/media/video/ivtv/ivtv-fileops.c +++ b/drivers/media/video/ivtv/ivtv-fileops.c @@ -406,7 +406,7 @@ static ssize_t ivtv_read_pos(struct ivtv_stream *s, char __user *ubuf, size_t co ssize_t rc = count ? ivtv_read(s, ubuf, count, non_block) : 0; struct ivtv *itv = s->itv; - IVTV_DEBUG_INFO("read %zd from %s, got %zd\n", count, s->name, rc); + IVTV_DEBUG_HI_INFO("read %zd from %s, got %zd\n", count, s->name, rc); if (rc > 0) pos += rc; return rc; @@ -497,7 +497,7 @@ ssize_t ivtv_v4l2_read(struct file * filp, char __user *buf, size_t count, loff_ struct ivtv_stream *s = &itv->streams[id->type]; int rc; - IVTV_DEBUG_IOCTL("read %zd bytes from %s\n", count, s->name); + IVTV_DEBUG_HI_IOCTL("read %zd bytes from %s\n", count, s->name); rc = ivtv_start_capture(id); if (rc) @@ -535,7 +535,7 @@ ssize_t ivtv_v4l2_write(struct file *filp, const char __user *user_buf, size_t c int rc; DEFINE_WAIT(wait); - IVTV_DEBUG_IOCTL("write %zd bytes to %s\n", count, s->name); + IVTV_DEBUG_HI_IOCTL("write %zd bytes to %s\n", count, s->name); if (s->type != IVTV_DEC_STREAM_TYPE_MPG && s->type != IVTV_DEC_STREAM_TYPE_YUV && @@ -643,7 +643,7 @@ retry: to transfer the rest. */ if (count && !(filp->f_flags & O_NONBLOCK)) goto retry; - IVTV_DEBUG_INFO("Wrote %d bytes to %s (%d)\n", bytes_written, s->name, s->q_full.bytesused); + IVTV_DEBUG_HI_INFO("Wrote %d bytes to %s (%d)\n", bytes_written, s->name, s->q_full.bytesused); return bytes_written; } diff --git a/drivers/media/video/ivtv/ivtv-firmware.c b/drivers/media/video/ivtv/ivtv-firmware.c index d4c910b782af..2b6208a6a108 100644 --- a/drivers/media/video/ivtv/ivtv-firmware.c +++ b/drivers/media/video/ivtv/ivtv-firmware.c @@ -56,9 +56,7 @@ retry: volatile u32 __iomem *dst = (volatile u32 __iomem *)mem; const u32 *src = (const u32 *)fw->data; - /* temporarily allow 256 KB encoding firmwares as well for - compatibility with blackbird cards */ - if (fw->size != size && fw->size != 256 * 1024) { + if (fw->size != size) { /* Due to race conditions in firmware loading (esp. with udev <0.95) the wrong file was sometimes loaded. So we check filesizes to see if at least the right-sized file was loaded. If not, then we diff --git a/drivers/media/video/ivtv/ivtv-gpio.c b/drivers/media/video/ivtv/ivtv-gpio.c index bc8f8ca2961f..676418cbaaad 100644 --- a/drivers/media/video/ivtv/ivtv-gpio.c +++ b/drivers/media/video/ivtv/ivtv-gpio.c @@ -115,8 +115,7 @@ void ivtv_reset_ir_gpio(struct ivtv *itv) curout = (curout & ~0xF) | 1; write_reg(curout, IVTV_REG_GPIO_OUT); /* We could use something else for smaller time */ - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(1); + schedule_timeout_interruptible(msecs_to_jiffies(1)); curout |= 2; write_reg(curout, IVTV_REG_GPIO_OUT); curdir &= ~0x80; @@ -138,13 +137,11 @@ int ivtv_reset_tuner_gpio(enum v4l2_tuner_type mode, void *priv, int ptr) curout &= ~(1 << 12); write_reg(curout, IVTV_REG_GPIO_OUT); - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(1); + schedule_timeout_interruptible(msecs_to_jiffies(1)); curout |= (1 << 12); write_reg(curout, IVTV_REG_GPIO_OUT); - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(1); + schedule_timeout_interruptible(msecs_to_jiffies(1)); return 0; } diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index 57af1762de1f..4773453e8dab 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -1159,7 +1159,7 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void memset(fb, 0, sizeof(*fb)); if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) - break; + return -EINVAL; fb->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | V4L2_FBUF_CAP_CHROMAKEY | V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_GLOBAL_ALPHA; fb->fmt.pixelformat = itv->osd_pixelformat; @@ -1179,7 +1179,7 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void struct v4l2_framebuffer *fb = arg; if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) - break; + return -EINVAL; itv->osd_global_alpha_state = (fb->flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) != 0; itv->osd_local_alpha_state = (fb->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) != 0; itv->osd_color_key_state = (fb->flags & V4L2_FBUF_FLAG_CHROMAKEY) != 0; diff --git a/drivers/media/video/ivtv/ivtv-irq.c b/drivers/media/video/ivtv/ivtv-irq.c index ba98bf054f2e..1a3ee464a826 100644 --- a/drivers/media/video/ivtv/ivtv-irq.c +++ b/drivers/media/video/ivtv/ivtv-irq.c @@ -48,7 +48,7 @@ static void ivtv_pio_work_handler(struct ivtv *itv) struct list_head *p; int i = 0; - IVTV_DEBUG_DMA("ivtv_pio_work_handler\n"); + IVTV_DEBUG_HI_DMA("ivtv_pio_work_handler\n"); if (itv->cur_pio_stream < 0 || itv->cur_pio_stream >= IVTV_MAX_STREAMS || s->v4l2dev == NULL || !ivtv_use_pio(s)) { itv->cur_pio_stream = -1; @@ -56,7 +56,7 @@ static void ivtv_pio_work_handler(struct ivtv *itv) write_reg(IVTV_IRQ_ENC_PIO_COMPLETE, 0x44); return; } - IVTV_DEBUG_DMA("Process PIO %s\n", s->name); + IVTV_DEBUG_HI_DMA("Process PIO %s\n", s->name); buf = list_entry(s->q_dma.list.next, struct ivtv_buffer, list); list_for_each(p, &s->q_dma.list) { struct ivtv_buffer *buf = list_entry(p, struct ivtv_buffer, list); @@ -187,7 +187,7 @@ static int stream_enc_dma_append(struct ivtv_stream *s, u32 data[CX2341X_MBOX_MA bytes_needed += UVsize; } - IVTV_DEBUG_DMA("%s %s: 0x%08x bytes at 0x%08x\n", + IVTV_DEBUG_HI_DMA("%s %s: 0x%08x bytes at 0x%08x\n", ivtv_use_pio(s) ? "PIO" : "DMA", s->name, bytes_needed, offset); rc = ivtv_queue_move(s, &s->q_free, &s->q_full, &s->q_predma, bytes_needed); @@ -242,7 +242,7 @@ static void dma_post(struct ivtv_stream *s) u32 *u32buf; int x = 0; - IVTV_DEBUG_DMA("%s %s completed (%x)\n", ivtv_use_pio(s) ? "PIO" : "DMA", + IVTV_DEBUG_HI_DMA("%s %s completed (%x)\n", ivtv_use_pio(s) ? "PIO" : "DMA", s->name, s->dma_offset); list_for_each(p, &s->q_dma.list) { buf = list_entry(p, struct ivtv_buffer, list); @@ -321,7 +321,7 @@ void ivtv_dma_stream_dec_prepare(struct ivtv_stream *s, u32 offset, int lock) unsigned long flags = 0; int idx = 0; - IVTV_DEBUG_DMA("DEC PREPARE DMA %s: %08x %08x\n", s->name, s->q_predma.bytesused, offset); + IVTV_DEBUG_HI_DMA("DEC PREPARE DMA %s: %08x %08x\n", s->name, s->q_predma.bytesused, offset); buf = list_entry(s->q_predma.list.next, struct ivtv_buffer, list); list_for_each(p, &s->q_predma.list) { struct ivtv_buffer *buf = list_entry(p, struct ivtv_buffer, list); @@ -368,7 +368,7 @@ static void ivtv_dma_enc_start(struct ivtv_stream *s) struct ivtv_stream *s_vbi = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI]; int i; - IVTV_DEBUG_DMA("start %s for %s\n", ivtv_use_dma(s) ? "DMA" : "PIO", s->name); + IVTV_DEBUG_HI_DMA("start %s for %s\n", ivtv_use_dma(s) ? "DMA" : "PIO", s->name); if (s->q_predma.bytesused) ivtv_queue_move(s, &s->q_predma, NULL, &s->q_dma, s->q_predma.bytesused); @@ -397,7 +397,7 @@ static void ivtv_dma_enc_start(struct ivtv_stream *s) itv->vbi.dma_offset = s_vbi->dma_offset; s_vbi->SG_length = 0; set_bit(IVTV_F_S_DMA_HAS_VBI, &s->s_flags); - IVTV_DEBUG_DMA("include DMA for %s\n", s->name); + IVTV_DEBUG_HI_DMA("include DMA for %s\n", s->name); } /* Mark last buffer size for Interrupt flag */ @@ -431,7 +431,7 @@ static void ivtv_dma_dec_start(struct ivtv_stream *s) if (s->q_predma.bytesused) ivtv_queue_move(s, &s->q_predma, NULL, &s->q_dma, s->q_predma.bytesused); - IVTV_DEBUG_DMA("start DMA for %s\n", s->name); + IVTV_DEBUG_HI_DMA("start DMA for %s\n", s->name); /* put SG Handle into register 0x0c */ write_reg(s->SG_handle, IVTV_REG_DECDMAADDR); write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x01, IVTV_REG_DMAXFER); @@ -447,7 +447,7 @@ static void ivtv_irq_dma_read(struct ivtv *itv) struct ivtv_buffer *buf; int hw_stream_type; - IVTV_DEBUG_IRQ("DEC DMA READ\n"); + IVTV_DEBUG_HI_IRQ("DEC DMA READ\n"); del_timer(&itv->dma_timer); if (read_reg(IVTV_REG_DMASTATUS) & 0x14) { IVTV_DEBUG_WARN("DEC DMA ERROR %x\n", read_reg(IVTV_REG_DMASTATUS)); @@ -462,7 +462,7 @@ static void ivtv_irq_dma_read(struct ivtv *itv) s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG]; hw_stream_type = 0; } - IVTV_DEBUG_DMA("DEC DATA READ %s: %d\n", s->name, s->q_dma.bytesused); + IVTV_DEBUG_HI_DMA("DEC DATA READ %s: %d\n", s->name, s->q_dma.bytesused); ivtv_stream_sync_for_cpu(s); @@ -495,7 +495,7 @@ static void ivtv_irq_enc_dma_complete(struct ivtv *itv) del_timer(&itv->dma_timer); ivtv_api_get_data(&itv->enc_mbox, IVTV_MBOX_DMA_END, data); - IVTV_DEBUG_IRQ("ENC DMA COMPLETE %x %d\n", data[0], data[1]); + IVTV_DEBUG_HI_IRQ("ENC DMA COMPLETE %x %d\n", data[0], data[1]); if (test_and_clear_bit(IVTV_F_I_ENC_VBI, &itv->i_flags)) data[1] = 3; else if (data[1] > 2) @@ -532,7 +532,7 @@ static void ivtv_irq_enc_pio_complete(struct ivtv *itv) return; } s = &itv->streams[itv->cur_pio_stream]; - IVTV_DEBUG_IRQ("ENC PIO COMPLETE %s\n", s->name); + IVTV_DEBUG_HI_IRQ("ENC PIO COMPLETE %s\n", s->name); s->SG_length = 0; clear_bit(IVTV_F_I_ENC_VBI, &itv->i_flags); clear_bit(IVTV_F_I_PIO, &itv->i_flags); @@ -590,7 +590,7 @@ static void ivtv_irq_enc_start_cap(struct ivtv *itv) /* Get DMA destination and size arguments from card */ ivtv_api_get_data(&itv->enc_mbox, IVTV_MBOX_DMA, data); - IVTV_DEBUG_IRQ("ENC START CAP %d: %08x %08x\n", data[0], data[1], data[2]); + IVTV_DEBUG_HI_IRQ("ENC START CAP %d: %08x %08x\n", data[0], data[1], data[2]); if (data[0] > 2 || data[1] == 0 || data[2] == 0) { IVTV_DEBUG_WARN("Unknown input: %08x %08x %08x\n", @@ -610,7 +610,7 @@ static void ivtv_irq_enc_vbi_cap(struct ivtv *itv) u32 data[CX2341X_MBOX_MAX_DATA]; struct ivtv_stream *s; - IVTV_DEBUG_IRQ("ENC START VBI CAP\n"); + IVTV_DEBUG_HI_IRQ("ENC START VBI CAP\n"); s = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI]; /* If more than two VBI buffers are pending, then @@ -644,7 +644,7 @@ static void ivtv_irq_dec_vbi_reinsert(struct ivtv *itv) u32 data[CX2341X_MBOX_MAX_DATA]; struct ivtv_stream *s = &itv->streams[IVTV_DEC_STREAM_TYPE_VBI]; - IVTV_DEBUG_IRQ("DEC VBI REINSERT\n"); + IVTV_DEBUG_HI_IRQ("DEC VBI REINSERT\n"); if (test_bit(IVTV_F_S_CLAIMED, &s->s_flags) && !stream_enc_dma_append(s, data)) { set_bit(IVTV_F_S_PIO_PENDING, &s->s_flags); @@ -669,7 +669,7 @@ static void ivtv_irq_dec_data_req(struct ivtv *itv) itv->dma_data_req_offset = data[1]; s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG]; } - IVTV_DEBUG_IRQ("DEC DATA REQ %s: %d %08x %u\n", s->name, s->q_full.bytesused, + IVTV_DEBUG_HI_IRQ("DEC DATA REQ %s: %d %08x %u\n", s->name, s->q_full.bytesused, itv->dma_data_req_offset, itv->dma_data_req_size); if (itv->dma_data_req_size == 0 || s->q_full.bytesused < itv->dma_data_req_size) { set_bit(IVTV_F_S_NEEDS_DATA, &s->s_flags); @@ -791,10 +791,10 @@ irqreturn_t ivtv_irq_handler(int irq, void *dev_id) /* Exclude interrupts noted below from the output, otherwise the log is flooded with these messages */ if (combo & ~0xff6d0400) - IVTV_DEBUG_IRQ("======= valid IRQ bits: 0x%08x ======\n", combo); + IVTV_DEBUG_HI_IRQ("======= valid IRQ bits: 0x%08x ======\n", combo); if (combo & IVTV_IRQ_DEC_DMA_COMPLETE) { - IVTV_DEBUG_IRQ("DEC DMA COMPLETE\n"); + IVTV_DEBUG_HI_IRQ("DEC DMA COMPLETE\n"); } if (combo & IVTV_IRQ_DMA_READ) { diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c index 6af88ae9295f..287117187499 100644 --- a/drivers/media/video/ivtv/ivtv-streams.c +++ b/drivers/media/video/ivtv/ivtv-streams.c @@ -446,6 +446,9 @@ int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s) if (s->v4l2dev == NULL) return -EINVAL; + /* Big serialization lock to ensure no two streams are started + simultaneously: that can give all sorts of weird results. */ + mutex_lock(&itv->serialize_lock); IVTV_DEBUG_INFO("Start encoder stream %s\n", s->name); switch (s->type) { @@ -487,6 +490,7 @@ int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s) 0, sizeof(itv->vbi.sliced_mpeg_size)); break; default: + mutex_unlock(&itv->serialize_lock); return -EINVAL; } s->subtype = subtype; @@ -568,6 +572,7 @@ int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s) if (ivtv_vapi(itv, CX2341X_ENC_START_CAPTURE, 2, captype, subtype)) { IVTV_DEBUG_WARN( "Error starting capture!\n"); + mutex_unlock(&itv->serialize_lock); return -EINVAL; } @@ -583,6 +588,7 @@ int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s) /* you're live! sit back and await interrupts :) */ atomic_inc(&itv->capturing); + mutex_unlock(&itv->serialize_lock); return 0; } @@ -762,17 +768,6 @@ int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) /* when: 0 = end of GOP 1 = NOW!, type: 0 = mpeg, subtype: 3 = video+audio */ ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, stopmode, cap_type, s->subtype); - /* only run these if we're shutting down the last cap */ - if (atomic_read(&itv->capturing) - 1 == 0) { - /* event notification (off) */ - if (test_and_clear_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { - /* type: 0 = refresh */ - /* on/off: 0 = off, intr: 0x10000000, mbox_id: -1: none */ - ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_ENC_VIM_RST, -1); - ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); - } - } - then = jiffies; if (!test_bit(IVTV_F_S_PASSTHROUGH, &s->s_flags)) { @@ -812,7 +807,6 @@ int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) then = jiffies; /* Make sure DMA is complete */ add_wait_queue(&s->waitq, &wait); - set_current_state(TASK_INTERRUPTIBLE); do { /* check if DMA is pending */ if ((s->type == IVTV_ENC_STREAM_TYPE_MPG) && /* MPG Only */ @@ -827,9 +821,7 @@ int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) } else if (read_reg(IVTV_REG_DMASTATUS) & 0x02) { break; } - - ivtv_sleep_timeout(HZ / 100, 1); - } while (then + HZ * 2 > jiffies); + } while (!ivtv_sleep_timeout(HZ / 100, 1) && then + HZ * 2 > jiffies); set_current_state(TASK_RUNNING); remove_wait_queue(&s->waitq, &wait); @@ -840,17 +832,30 @@ int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) /* Clear capture and no-read bits */ clear_bit(IVTV_F_S_STREAMING, &s->s_flags); + /* ensure these global cleanup actions are done only once */ + mutex_lock(&itv->serialize_lock); + if (s->type == IVTV_ENC_STREAM_TYPE_VBI) ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VBI_CAP); if (atomic_read(&itv->capturing) > 0) { + mutex_unlock(&itv->serialize_lock); return 0; } /* Set the following Interrupt mask bits for capture */ ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); + /* event notification (off) */ + if (test_and_clear_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { + /* type: 0 = refresh */ + /* on/off: 0 = off, intr: 0x10000000, mbox_id: -1: none */ + ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_ENC_VIM_RST, -1); + ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); + } + wake_up(&s->waitq); + mutex_unlock(&itv->serialize_lock); return 0; } diff --git a/drivers/media/video/ivtv/ivtv-vbi.c b/drivers/media/video/ivtv/ivtv-vbi.c index 3ba46e07ea1f..a7282a91bd97 100644 --- a/drivers/media/video/ivtv/ivtv-vbi.c +++ b/drivers/media/video/ivtv/ivtv-vbi.c @@ -219,31 +219,23 @@ ssize_t ivtv_write_vbi(struct ivtv *itv, const char __user *ubuf, size_t count) int found_cc = 0; int cc_pos = itv->vbi.cc_pos; - if (itv->vbi.service_set_out == 0) - return -EPERM; - while (count >= sizeof(struct v4l2_sliced_vbi_data)) { switch (p->id) { case V4L2_SLICED_CAPTION_525: - if (p->id == V4L2_SLICED_CAPTION_525 && - p->line == 21 && - (itv->vbi.service_set_out & - V4L2_SLICED_CAPTION_525) == 0) { - break; - } - found_cc = 1; - if (p->field) { - cc[2] = p->data[0]; - cc[3] = p->data[1]; - } else { - cc[0] = p->data[0]; - cc[1] = p->data[1]; + if (p->line == 21) { + found_cc = 1; + if (p->field) { + cc[2] = p->data[0]; + cc[3] = p->data[1]; + } else { + cc[0] = p->data[0]; + cc[1] = p->data[1]; + } } break; case V4L2_SLICED_VPS: - if (p->line == 16 && p->field == 0 && - (itv->vbi.service_set_out & V4L2_SLICED_VPS)) { + if (p->line == 16 && p->field == 0) { itv->vbi.vps[0] = p->data[2]; itv->vbi.vps[1] = p->data[8]; itv->vbi.vps[2] = p->data[9]; @@ -255,8 +247,7 @@ ssize_t ivtv_write_vbi(struct ivtv *itv, const char __user *ubuf, size_t count) break; case V4L2_SLICED_WSS_625: - if (p->line == 23 && p->field == 0 && - (itv->vbi.service_set_out & V4L2_SLICED_WSS_625)) { + if (p->line == 23 && p->field == 0) { /* No lock needed for WSS */ itv->vbi.wss = p->data[0] | (p->data[1] << 8); itv->vbi.wss_found = 1; diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c index 3bb7d6634862..11cfcf18ec34 100644 --- a/drivers/media/video/msp3400-driver.c +++ b/drivers/media/video/msp3400-driver.c @@ -157,8 +157,7 @@ static int msp_read(struct i2c_client *client, int dev, int addr) break; v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err, dev, addr); - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(msecs_to_jiffies(10)); + schedule_timeout_interruptible(msecs_to_jiffies(10)); } if (err == 3) { v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n"); @@ -197,8 +196,7 @@ static int msp_write(struct i2c_client *client, int dev, int addr, int val) break; v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err, dev, addr); - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(msecs_to_jiffies(10)); + schedule_timeout_interruptible(msecs_to_jiffies(10)); } if (err == 3) { v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n"); @@ -814,10 +812,9 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind) int msp_product, msp_prod_hi, msp_prod_lo; int msp_rom; - client = kmalloc(sizeof(*client), GFP_KERNEL); + client = kzalloc(sizeof(*client), GFP_KERNEL); if (client == NULL) return -ENOMEM; - memset(client, 0, sizeof(*client)); client->addr = address; client->adapter = adapter; client->driver = &i2c_driver; diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c index e1821eb82fb5..d5ee2629121e 100644 --- a/drivers/media/video/msp3400-kthreads.c +++ b/drivers/media/video/msp3400-kthreads.c @@ -23,6 +23,7 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/i2c.h> +#include <linux/freezer.h> #include <linux/videodev.h> #include <linux/videodev2.h> #include <media/v4l2-common.h> @@ -468,6 +469,7 @@ int msp3400c_thread(void *data) v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n"); + set_freezable(); for (;;) { v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n"); msp_sleep(state, -1); @@ -646,7 +648,7 @@ int msp3410d_thread(void *data) int val, i, std, count; v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n"); - + set_freezable(); for (;;) { v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n"); msp_sleep(state,-1); @@ -940,7 +942,7 @@ int msp34xxg_thread(void *data) int val, i; v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n"); - + set_freezable(); for (;;) { v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n"); msp_sleep(state, -1); diff --git a/drivers/media/video/mt20xx.c b/drivers/media/video/mt20xx.c index c7c9f3f8715c..7549114aaaca 100644 --- a/drivers/media/video/mt20xx.c +++ b/drivers/media/video/mt20xx.c @@ -7,7 +7,7 @@ #include <linux/i2c.h> #include <linux/videodev.h> #include <linux/moduleparam.h> -#include <media/tuner.h> +#include "tuner-driver.h" /* ---------------------------------------------------------------------- */ @@ -37,6 +37,19 @@ static char *microtune_part[] = { [ MT2050 ] = "MT2050", }; +struct microtune_priv { + unsigned int xogc; + unsigned int radio_if2; +}; + +static void microtune_release(struct i2c_client *c) +{ + struct tuner *t = i2c_get_clientdata(c); + + kfree(t->priv); + t->priv = NULL; +} + // IsSpurInBand()? static int mt2032_spurcheck(struct i2c_client *c, int f1, int f2, int spectrum_from,int spectrum_to) @@ -218,6 +231,7 @@ static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin, unsigned char buf[21]; int lint_try,ret,sel,lock=0; struct tuner *t = i2c_get_clientdata(c); + struct microtune_priv *priv = t->priv; tuner_dbg("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n", rfin,if1,if2,from,to); @@ -227,7 +241,7 @@ static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin, i2c_master_recv(c,buf,21); buf[0]=0; - ret=mt2032_compute_freq(c,rfin,if1,if2,from,to,&buf[1],&sel,t->xogc); + ret=mt2032_compute_freq(c,rfin,if1,if2,from,to,&buf[1],&sel,priv->xogc); if (ret<0) return; @@ -251,10 +265,10 @@ static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin, tuner_dbg("mt2032: re-init PLLs by LINT\n"); buf[0]=7; - buf[1]=0x80 +8+t->xogc; // set LINT to re-init PLLs + buf[1]=0x80 +8+priv->xogc; // set LINT to re-init PLLs i2c_master_send(c,buf,2); mdelay(10); - buf[1]=8+t->xogc; + buf[1]=8+priv->xogc; i2c_master_send(c,buf,2); } @@ -294,17 +308,25 @@ static void mt2032_set_tv_freq(struct i2c_client *c, unsigned int freq) static void mt2032_set_radio_freq(struct i2c_client *c, unsigned int freq) { struct tuner *t = i2c_get_clientdata(c); - int if2 = t->radio_if2; + struct microtune_priv *priv = t->priv; + int if2 = priv->radio_if2; // per Manual for FM tuning: first if center freq. 1085 MHz mt2032_set_if_freq(c, freq * 1000 / 16, 1085*1000*1000,if2,if2,if2); } +static struct tuner_operations mt2032_tuner_ops = { + .set_tv_freq = mt2032_set_tv_freq, + .set_radio_freq = mt2032_set_radio_freq, + .release = microtune_release, +}; + // Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001 static int mt2032_init(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); + struct microtune_priv *priv = t->priv; unsigned char buf[21]; int ret,xogc,xok=0; @@ -351,23 +373,23 @@ static int mt2032_init(struct i2c_client *c) if (ret!=2) tuner_warn("i2c i/o error: rc == %d (should be 2)\n",ret); } while (xok != 1 ); - t->xogc=xogc; + priv->xogc=xogc; + + memcpy(&t->ops, &mt2032_tuner_ops, sizeof(struct tuner_operations)); - t->set_tv_freq = mt2032_set_tv_freq; - t->set_radio_freq = mt2032_set_radio_freq; return(1); } static void mt2050_set_antenna(struct i2c_client *c, unsigned char antenna) { struct tuner *t = i2c_get_clientdata(c); - unsigned char buf[2]; - int ret; + unsigned char buf[2]; + int ret; - buf[0] = 6; - buf[1] = antenna ? 0x11 : 0x10; - ret=i2c_master_send(c,buf,2); - tuner_dbg("mt2050: enabled antenna connector %d\n", antenna); + buf[0] = 6; + buf[1] = antenna ? 0x11 : 0x10; + ret=i2c_master_send(c,buf,2); + tuner_dbg("mt2050: enabled antenna connector %d\n", antenna); } static void mt2050_set_if_freq(struct i2c_client *c,unsigned int freq, unsigned int if2) @@ -456,12 +478,19 @@ static void mt2050_set_tv_freq(struct i2c_client *c, unsigned int freq) static void mt2050_set_radio_freq(struct i2c_client *c, unsigned int freq) { struct tuner *t = i2c_get_clientdata(c); - int if2 = t->radio_if2; + struct microtune_priv *priv = t->priv; + int if2 = priv->radio_if2; mt2050_set_if_freq(c, freq * 1000 / 16, if2); mt2050_set_antenna(c, radio_antenna); } +static struct tuner_operations mt2050_tuner_ops = { + .set_tv_freq = mt2050_set_tv_freq, + .set_radio_freq = mt2050_set_radio_freq, + .release = microtune_release, +}; + static int mt2050_init(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); @@ -481,28 +510,35 @@ static int mt2050_init(struct i2c_client *c) i2c_master_recv(c,buf,1); tuner_dbg("mt2050: sro is %x\n",buf[0]); - t->set_tv_freq = mt2050_set_tv_freq; - t->set_radio_freq = mt2050_set_radio_freq; + + memcpy(&t->ops, &mt2050_tuner_ops, sizeof(struct tuner_operations)); + return 0; } int microtune_init(struct i2c_client *c) { + struct microtune_priv *priv = NULL; struct tuner *t = i2c_get_clientdata(c); char *name; unsigned char buf[21]; int company_code; + priv = kzalloc(sizeof(struct microtune_priv), GFP_KERNEL); + if (priv == NULL) + return -ENOMEM; + t->priv = priv; + + priv->radio_if2 = 10700 * 1000; /* 10.7MHz - FM radio */ + memset(buf,0,sizeof(buf)); - t->set_tv_freq = NULL; - t->set_radio_freq = NULL; - t->standby = NULL; + if (t->std & V4L2_STD_525_60) { tuner_dbg("pinnacle ntsc\n"); - t->radio_if2 = 41300 * 1000; + priv->radio_if2 = 41300 * 1000; } else { tuner_dbg("pinnacle pal\n"); - t->radio_if2 = 33300 * 1000; + priv->radio_if2 = 33300 * 1000; } name = "unknown"; diff --git a/drivers/media/video/ov7670.c b/drivers/media/video/ov7670.c index 3ceb8a6249dd..f8f21ddd9843 100644 --- a/drivers/media/video/ov7670.c +++ b/drivers/media/video/ov7670.c @@ -617,7 +617,7 @@ static struct ov7670_win_size { }, }; -#define N_WIN_SIZES (sizeof(ov7670_win_sizes)/sizeof(ov7670_win_sizes[0])) +#define N_WIN_SIZES (ARRAY_SIZE(ov7670_win_sizes)) /* @@ -1183,7 +1183,7 @@ static struct ov7670_control { .query = ov7670_q_hflip, }, }; -#define N_CONTROLS (sizeof(ov7670_controls)/sizeof(ov7670_controls[0])) +#define N_CONTROLS (ARRAY_SIZE(ov7670_controls)) static struct ov7670_control *ov7670_find_control(__u32 id) { diff --git a/drivers/media/video/planb.c b/drivers/media/video/planb.c index 1455a8f4e930..4ab1af74a970 100644 --- a/drivers/media/video/planb.c +++ b/drivers/media/video/planb.c @@ -353,9 +353,8 @@ static int planb_prepare_open(struct planb *pb) * PLANB_DUMMY)*sizeof(struct dbdma_cmd) +(PLANB_MAXLINES*((PLANB_MAXPIXELS+7)& ~7))/8 +MAX_GBUFFERS*sizeof(unsigned int); - if ((pb->priv_space = kmalloc (size, GFP_KERNEL)) == 0) + if ((pb->priv_space = kzalloc (size, GFP_KERNEL)) == 0) return -ENOMEM; - memset ((void *) pb->priv_space, 0, size); pb->overlay_last1 = pb->ch1_cmd = (volatile struct dbdma_cmd *) DBDMA_ALIGN (pb->priv_space); pb->overlay_last2 = pb->ch2_cmd = pb->ch1_cmd + pb->tab_size; diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c index 085332a503de..9c0e8d18c2f6 100644 --- a/drivers/media/video/pwc/pwc-if.c +++ b/drivers/media/video/pwc/pwc-if.c @@ -1099,7 +1099,7 @@ static int pwc_video_open(struct inode *inode, struct file *file) return -EBUSY; } - down(&pdev->modlock); + mutex_lock(&pdev->modlock); if (!pdev->usb_init) { PWC_DEBUG_OPEN("Doing first time initialization.\n"); pdev->usb_init = 1; @@ -1131,7 +1131,7 @@ static int pwc_video_open(struct inode *inode, struct file *file) if (i < 0) { PWC_DEBUG_OPEN("Failed to allocate buffers memory.\n"); pwc_free_buffers(pdev); - up(&pdev->modlock); + mutex_unlock(&pdev->modlock); return i; } @@ -1172,7 +1172,7 @@ static int pwc_video_open(struct inode *inode, struct file *file) if (i) { PWC_DEBUG_OPEN("Second attempt at set_video_mode failed.\n"); pwc_free_buffers(pdev); - up(&pdev->modlock); + mutex_unlock(&pdev->modlock); return i; } @@ -1181,7 +1181,7 @@ static int pwc_video_open(struct inode *inode, struct file *file) PWC_DEBUG_OPEN("Failed to init ISOC stuff = %d.\n", i); pwc_isoc_cleanup(pdev); pwc_free_buffers(pdev); - up(&pdev->modlock); + mutex_unlock(&pdev->modlock); return i; } @@ -1191,7 +1191,7 @@ static int pwc_video_open(struct inode *inode, struct file *file) pdev->vopen++; file->private_data = vdev; - up(&pdev->modlock); + mutex_unlock(&pdev->modlock); PWC_DEBUG_OPEN("<< video_open() returns 0.\n"); return 0; } @@ -1685,7 +1685,7 @@ static int usb_pwc_probe(struct usb_interface *intf, const struct usb_device_id pdev->angle_range.tilt_max = 2500; } - init_MUTEX(&pdev->modlock); + mutex_init(&pdev->modlock); spin_lock_init(&pdev->ptrlock); pdev->udev = udev; diff --git a/drivers/media/video/pwc/pwc.h b/drivers/media/video/pwc/pwc.h index acbb9312960a..910a04f53920 100644 --- a/drivers/media/video/pwc/pwc.h +++ b/drivers/media/video/pwc/pwc.h @@ -31,7 +31,7 @@ #include <linux/wait.h> #include <linux/smp_lock.h> #include <linux/version.h> -#include <asm/semaphore.h> +#include <linux/mutex.h> #include <asm/errno.h> #include <linux/videodev.h> #include <media/v4l2-common.h> @@ -244,7 +244,7 @@ struct pwc_device int image_read_pos; /* In case we read data in pieces, keep track of were we are in the imagebuffer */ int image_used[MAX_IMAGES]; /* For MCAPTURE and SYNC */ - struct semaphore modlock; /* to prevent races in video_open(), etc */ + struct mutex modlock; /* to prevent races in video_open(), etc */ spinlock_t ptrlock; /* for manipulating the buffer pointers */ /*** motorized pan/tilt feature */ diff --git a/drivers/media/video/saa7111.c b/drivers/media/video/saa7111.c index c1a392e47170..7ae2d646d000 100644 --- a/drivers/media/video/saa7111.c +++ b/drivers/media/video/saa7111.c @@ -37,23 +37,23 @@ #include <linux/slab.h> #include <linux/mm.h> #include <linux/signal.h> +#include <linux/types.h> +#include <linux/i2c.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> -#include <linux/types.h> +#include <asm/uaccess.h> #include <linux/videodev.h> -#include <asm/uaccess.h> +#include <linux/video_decoder.h> MODULE_DESCRIPTION("Philips SAA7111 video decoder driver"); MODULE_AUTHOR("Dave Perks"); MODULE_LICENSE("GPL"); -#include <linux/i2c.h> #define I2C_NAME(s) (s)->name -#include <linux/video_decoder.h> static int debug = 0; module_param(debug, int, 0644); diff --git a/drivers/media/video/saa7114.c b/drivers/media/video/saa7114.c index 87c3144ec7fc..677df51de1a9 100644 --- a/drivers/media/video/saa7114.c +++ b/drivers/media/video/saa7114.c @@ -35,28 +35,26 @@ #include <linux/fs.h> #include <linux/kernel.h> #include <linux/major.h> - #include <linux/slab.h> - #include <linux/mm.h> #include <linux/signal.h> +#include <linux/types.h> +#include <linux/i2c.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> -#include <linux/types.h> +#include <asm/uaccess.h> #include <linux/videodev.h> -#include <asm/uaccess.h> +#include <linux/video_decoder.h> MODULE_DESCRIPTION("Philips SAA7114H video decoder driver"); MODULE_AUTHOR("Maxim Yevtyushkin"); MODULE_LICENSE("GPL"); -#include <linux/i2c.h> #define I2C_NAME(x) (x)->name -#include <linux/video_decoder.h> static int debug = 0; module_param(debug, int, 0); diff --git a/drivers/media/video/saa7134/Kconfig b/drivers/media/video/saa7134/Kconfig index 309dca368f4a..9f1417a4f7d2 100644 --- a/drivers/media/video/saa7134/Kconfig +++ b/drivers/media/video/saa7134/Kconfig @@ -40,7 +40,7 @@ config VIDEO_SAA7134_DVB depends on VIDEO_SAA7134 && DVB_CORE select VIDEO_BUF_DVB select FW_LOADER - select DVB_PLL + select DVB_PLL if !DVB_FE_CUSTOMISE select DVB_MT352 if !DVB_FE_CUSTOMISE select DVB_TDA1004X if !DVB_FE_CUSTOMISE select DVB_NXT200X if !DVB_FE_CUSTOMISE diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c index ffb0f647a86d..3c0fc9027ad0 100644 --- a/drivers/media/video/saa7134/saa7134-alsa.c +++ b/drivers/media/video/saa7134/saa7134-alsa.c @@ -75,7 +75,8 @@ typedef struct snd_card_saa7134 { struct saa7134_dev *dev; unsigned long iobase; - int irq; + s16 irq; + u16 mute_was_on; spinlock_t lock; } snd_card_saa7134_t; @@ -589,8 +590,10 @@ static int snd_card_saa7134_capture_close(struct snd_pcm_substream * substream) snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); struct saa7134_dev *dev = saa7134->dev; - dev->ctl_mute = 1; - saa7134_tvaudio_setmute(dev); + if (saa7134->mute_was_on) { + dev->ctl_mute = 1; + saa7134_tvaudio_setmute(dev); + } return 0; } @@ -637,8 +640,11 @@ static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream) runtime->private_free = snd_card_saa7134_runtime_free; runtime->hw = snd_card_saa7134_capture; - dev->ctl_mute = 0; - saa7134_tvaudio_setmute(dev); + if (dev->ctl_mute != 0) { + saa7134->mute_was_on = 1; + dev->ctl_mute = 0; + saa7134_tvaudio_setmute(dev); + } if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) return err; diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c index 50f15adfa7c8..8ec83bd70094 100644 --- a/drivers/media/video/saa7134/saa7134-cards.c +++ b/drivers/media/video/saa7134/saa7134-cards.c @@ -400,7 +400,7 @@ struct saa7134_board saa7134_boards[] = { .inputs = {{ .name = name_tv, .vmux = 1, - .amux = LINE2, + .amux = TV, .tv = 1, .gpio = 0x20000, },{ @@ -3502,6 +3502,38 @@ struct saa7134_board saa7134_boards[] = { .amux = TV, }, }, + [SAA7134_BOARD_10MOONSTVMASTER3] = { + /* Tony Wan <aloha_cn@hotmail.com> */ + .name = "10MOONS TM300 TV Card", + .audio_clock = 0x00200000, + .tuner_type = TUNER_LG_PAL_NEW_TAPC, + .radio_type = UNSET, + .tuner_addr = ADDR_UNSET, + .radio_addr = ADDR_UNSET, + .gpiomask = 0x7000, + .inputs = {{ + .name = name_tv, + .vmux = 1, + .amux = LINE2, + .gpio = 0x0000, + .tv = 1, + },{ + .name = name_comp1, + .vmux = 3, + .amux = LINE1, + .gpio = 0x2000, + },{ + .name = name_svideo, + .vmux = 8, + .amux = LINE1, + .gpio = 0x2000, + }}, + .mute = { + .name = name_mute, + .amux = LINE2, + .gpio = 0x3000, + }, + }, }; const unsigned int saa7134_bcount = ARRAY_SIZE(saa7134_boards); @@ -4219,6 +4251,12 @@ struct pci_device_id saa7134_pci_tbl[] = { .subdevice = 0x2003, /* OEM cardbus */ .driver_data = SAA7134_BOARD_SABRENT_TV_PCB05, },{ + .vendor = PCI_VENDOR_ID_PHILIPS, + .device = PCI_DEVICE_ID_PHILIPS_SAA7130, + .subvendor = PCI_VENDOR_ID_PHILIPS, + .subdevice = 0x2304, + .driver_data = SAA7134_BOARD_10MOONSTVMASTER3, + },{ /* --- boards without eeprom + subsystem ID --- */ .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7134, @@ -4330,6 +4368,7 @@ int saa7134_board_init1(struct saa7134_dev *dev) case SAA7134_BOARD_AVERMEDIA_A16AR: case SAA7134_BOARD_ENCORE_ENLTV: case SAA7134_BOARD_ENCORE_ENLTV_FM: + case SAA7134_BOARD_10MOONSTVMASTER3: dev->has_remote = SAA7134_REMOTE_GPIO; break; case SAA7134_BOARD_FLYDVBS_LR300: diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index e0eec80088c7..1f6bd3300715 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -175,18 +175,6 @@ static int mt352_pinnacle_tuner_set_params(struct dvb_frontend* fe, return mt352_pinnacle_init(fe); } -static int mt352_aver777_tuner_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8* pllbuf, int buf_len) -{ - if (buf_len < 5) - return -EINVAL; - - pllbuf[0] = 0x61; - dvb_pll_configure(&dvb_pll_philips_td1316, pllbuf+1, - params->frequency, - params->u.ofdm.bandwidth); - return 5; -} - static struct mt352_config pinnacle_300i = { .demod_address = 0x3c >> 1, .adc_clock = 20333, @@ -444,135 +432,6 @@ static struct tda1004x_config philips_europa_config = { /* ------------------------------------------------------------------ */ -static int philips_fmd1216_tuner_init(struct dvb_frontend *fe) -{ - struct saa7134_dev *dev = fe->dvb->priv; - struct tda1004x_state *state = fe->demodulator_priv; - u8 addr = state->config->tuner_address; - /* this message is to set up ATC and ALC */ - static u8 fmd1216_init[] = { 0x0b, 0xdc, 0x9c, 0xa0 }; - struct i2c_msg tuner_msg = {.addr = addr,.flags = 0,.buf = fmd1216_init,.len = sizeof(fmd1216_init) }; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if (i2c_transfer(&dev->i2c_adap, &tuner_msg, 1) != 1) - return -EIO; - msleep(1); - - return 0; -} - -static int philips_fmd1216_tuner_sleep(struct dvb_frontend *fe) -{ - struct saa7134_dev *dev = fe->dvb->priv; - struct tda1004x_state *state = fe->demodulator_priv; - u8 addr = state->config->tuner_address; - /* this message actually turns the tuner back to analog mode */ - u8 fmd1216_init[] = { 0x0b, 0xdc, 0x9c, 0x60 }; - struct i2c_msg tuner_msg = {.addr = addr,.flags = 0,.buf = fmd1216_init,.len = sizeof(fmd1216_init) }; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(&dev->i2c_adap, &tuner_msg, 1); - msleep(1); - fmd1216_init[2] = 0x86; - fmd1216_init[3] = 0x54; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - i2c_transfer(&dev->i2c_adap, &tuner_msg, 1); - msleep(1); - return 0; -} - -static int philips_fmd1216_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) -{ - struct saa7134_dev *dev = fe->dvb->priv; - struct tda1004x_state *state = fe->demodulator_priv; - u8 addr = state->config->tuner_address; - u8 tuner_buf[4]; - struct i2c_msg tuner_msg = {.addr = addr,.flags = 0,.buf = tuner_buf,.len = - sizeof(tuner_buf) }; - int tuner_frequency = 0; - int divider = 0; - u8 band, mode, cp; - - /* determine charge pump */ - tuner_frequency = params->frequency + 36130000; - if (tuner_frequency < 87000000) - return -EINVAL; - /* low band */ - else if (tuner_frequency < 180000000) { - band = 1; - mode = 7; - cp = 0; - } else if (tuner_frequency < 195000000) { - band = 1; - mode = 6; - cp = 1; - /* mid band */ - } else if (tuner_frequency < 366000000) { - if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) { - band = 10; - } else { - band = 2; - } - mode = 7; - cp = 0; - } else if (tuner_frequency < 478000000) { - if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) { - band = 10; - } else { - band = 2; - } - mode = 6; - cp = 1; - /* high band */ - } else if (tuner_frequency < 662000000) { - if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) { - band = 12; - } else { - band = 4; - } - mode = 7; - cp = 0; - } else if (tuner_frequency < 840000000) { - if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) { - band = 12; - } else { - band = 4; - } - mode = 6; - cp = 1; - } else { - if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) { - band = 12; - } else { - band = 4; - } - mode = 7; - cp = 1; - - } - /* calculate divisor */ - /* ((36166000 + Finput) / 166666) rounded! */ - divider = (tuner_frequency + 83333) / 166667; - - /* setup tuner buffer */ - tuner_buf[0] = (divider >> 8) & 0x7f; - tuner_buf[1] = divider & 0xff; - tuner_buf[2] = 0x80 | (cp << 6) | (mode << 3) | 4; - tuner_buf[3] = 0x40 | band; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - if (i2c_transfer(&dev->i2c_adap, &tuner_msg, 1) != 1) { - wprintk("could not write to tuner at addr: 0x%02x\n", - addr << 1); - return -EIO; - } - return 0; -} - static struct tda1004x_config medion_cardbus = { .demod_address = 0x08, .invert = 1, @@ -958,18 +817,8 @@ static struct nxt200x_config avertvhda180 = { .demod_address = 0x0a, }; -static int nxt200x_set_pll_input(u8 *buf, int input) -{ - if (input) - buf[3] |= 0x08; - else - buf[3] &= ~0x08; - return 0; -} - static struct nxt200x_config kworldatsc110 = { .demod_address = 0x0a, - .set_pll_input = nxt200x_set_pll_input, }; /* ================================================================== @@ -1005,7 +854,8 @@ static int dvb_init(struct saa7134_dev *dev) dev->dvb.frontend = dvb_attach(mt352_attach, &avermedia_777, &dev->i2c_adap); if (dev->dvb.frontend) { - dev->dvb.frontend->ops.tuner_ops.calc_regs = mt352_aver777_tuner_calc_regs; + dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, + NULL, DVB_PLL_PHILIPS_TD1316); } break; case SAA7134_BOARD_MD7134: @@ -1013,9 +863,8 @@ static int dvb_init(struct saa7134_dev *dev) &medion_cardbus, &dev->i2c_adap); if (dev->dvb.frontend) { - dev->dvb.frontend->ops.tuner_ops.init = philips_fmd1216_tuner_init; - dev->dvb.frontend->ops.tuner_ops.sleep = philips_fmd1216_tuner_sleep; - dev->dvb.frontend->ops.tuner_ops.set_params = philips_fmd1216_tuner_set_params; + dvb_attach(dvb_pll_attach, dev->dvb.frontend, medion_cardbus.tuner_address, + &dev->i2c_adap, DVB_PLL_FMD1216ME); } break; case SAA7134_BOARD_PHILIPS_TOUGH: @@ -1113,7 +962,7 @@ static int dvb_init(struct saa7134_dev *dev) &dev->i2c_adap); if (dev->dvb.frontend) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - NULL, &dvb_pll_tdhu2); + NULL, DVB_PLL_TDHU2); } break; case SAA7134_BOARD_KWORLD_ATSC110: @@ -1121,7 +970,7 @@ static int dvb_init(struct saa7134_dev *dev) &dev->i2c_adap); if (dev->dvb.frontend) { dvb_attach(dvb_pll_attach, dev->dvb.frontend, 0x61, - NULL, &dvb_pll_tuv1236d); + NULL, DVB_PLL_TUV1236D); } break; case SAA7134_BOARD_FLYDVBS_LR300: @@ -1144,9 +993,9 @@ static int dvb_init(struct saa7134_dev *dev) if (dev->dvb.frontend) { dev->original_demod_sleep = dev->dvb.frontend->ops.sleep; dev->dvb.frontend->ops.sleep = philips_europa_demod_sleep; - dev->dvb.frontend->ops.tuner_ops.init = philips_fmd1216_tuner_init; - dev->dvb.frontend->ops.tuner_ops.sleep = philips_fmd1216_tuner_sleep; - dev->dvb.frontend->ops.tuner_ops.set_params = philips_fmd1216_tuner_set_params; + + dvb_attach(dvb_pll_attach, dev->dvb.frontend, medion_cardbus.tuner_address, + &dev->i2c_adap, DVB_PLL_FMD1216ME); } break; case SAA7134_BOARD_VIDEOMATE_DVBT_200A: diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c index f521603482ca..fc260ec8fdc2 100644 --- a/drivers/media/video/saa7134/saa7134-empress.c +++ b/drivers/media/video/saa7134/saa7134-empress.c @@ -96,6 +96,10 @@ static int ts_open(struct inode *inode, struct file *file) if (dev->empress_users) goto done_up; + /* Unmute audio */ + saa_writeb(SAA7134_AUDIO_MUTE_CTRL, + saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6)); + dev->empress_users++; file->private_data = dev; err = 0; @@ -121,6 +125,10 @@ static int ts_release(struct inode *inode, struct file *file) /* stop the encoder */ ts_reset_encoder(dev); + /* Mute audio */ + saa_writeb(SAA7134_AUDIO_MUTE_CTRL, + saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6)); + mutex_unlock(&dev->empress_tsq.lock); return 0; } diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index c0de37e3f5c6..1b6dfd801cc1 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -153,21 +153,18 @@ void saa7134_input_irq(struct saa7134_dev *dev) static void saa7134_input_timer(unsigned long data) { - struct saa7134_dev *dev = (struct saa7134_dev*)data; + struct saa7134_dev *dev = (struct saa7134_dev *)data; struct card_ir *ir = dev->remote; - unsigned long timeout; build_key(dev); - timeout = jiffies + (ir->polling * HZ / 1000); - mod_timer(&ir->timer, timeout); + mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling)); } static void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir) { if (ir->polling) { - init_timer(&ir->timer); - ir->timer.function = saa7134_input_timer; - ir->timer.data = (unsigned long)dev; + setup_timer(&ir->timer, saa7134_input_timer, + (unsigned long)dev); ir->timer.expires = jiffies + HZ; add_timer(&ir->timer); } else if (ir->rc5_gpio) { @@ -314,6 +311,7 @@ int saa7134_input_init1(struct saa7134_dev *dev) mask_keycode = 0x003F00; mask_keyup = 0x040000; break; + case SAA7134_BOARD_FLYDVBS_LR300: case SAA7134_BOARD_FLYDVBT_LR301: case SAA7134_BOARD_FLYDVBTDUO: ir_codes = ir_codes_flydvb; @@ -333,6 +331,12 @@ int saa7134_input_init1(struct saa7134_dev *dev) mask_keyup = 0x040000; polling = 50; // ms break; + case SAA7134_BOARD_10MOONSTVMASTER3: + ir_codes = ir_codes_encore_enltv; + mask_keycode = 0x5f80000; + mask_keyup = 0x8000000; + polling = 50; //ms + break; } if (NULL == ir_codes) { printk("%s: Oops: IR config error [card=%d]\n", @@ -374,7 +378,7 @@ int saa7134_input_init1(struct saa7134_dev *dev) input_dev->id.vendor = dev->pci->vendor; input_dev->id.product = dev->pci->device; } - input_dev->cdev.dev = &dev->pci->dev; + input_dev->dev.parent = &dev->pci->dev; dev->remote = ir; saa7134_ir_start(dev, ir); diff --git a/drivers/media/video/saa7134/saa7134-tvaudio.c b/drivers/media/video/saa7134/saa7134-tvaudio.c index 30395d6b5f14..18b4817b4aac 100644 --- a/drivers/media/video/saa7134/saa7134-tvaudio.c +++ b/drivers/media/video/saa7134/saa7134-tvaudio.c @@ -25,6 +25,7 @@ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> +#include <linux/kthread.h> #include <linux/slab.h> #include <linux/delay.h> #include <asm/div64.h> @@ -341,10 +342,8 @@ static void tvaudio_setmode(struct saa7134_dev *dev, static int tvaudio_sleep(struct saa7134_dev *dev, int timeout) { - DECLARE_WAITQUEUE(wait, current); - - add_wait_queue(&dev->thread.wq, &wait); - if (dev->thread.scan1 == dev->thread.scan2 && !dev->thread.shutdown) { + if (dev->thread.scan1 == dev->thread.scan2 && + !kthread_should_stop()) { if (timeout < 0) { set_current_state(TASK_INTERRUPTIBLE); schedule(); @@ -353,7 +352,6 @@ static int tvaudio_sleep(struct saa7134_dev *dev, int timeout) (msecs_to_jiffies(timeout)); } } - remove_wait_queue(&dev->thread.wq, &wait); return dev->thread.scan1 != dev->thread.scan2; } @@ -505,11 +503,10 @@ static int tvaudio_thread(void *data) unsigned int i, audio, nscan; int max1,max2,carrier,rx,mode,lastmode,default_carrier; - daemonize("%s", dev->name); allow_signal(SIGTERM); for (;;) { tvaudio_sleep(dev,-1); - if (dev->thread.shutdown || signal_pending(current)) + if (kthread_should_stop() || signal_pending(current)) goto done; restart: @@ -618,7 +615,7 @@ static int tvaudio_thread(void *data) for (;;) { if (tvaudio_sleep(dev,5000)) goto restart; - if (dev->thread.shutdown || signal_pending(current)) + if (kthread_should_stop() || signal_pending(current)) break; if (UNSET == dev->thread.mode) { rx = tvaudio_getstereo(dev,&tvaudio[i]); @@ -634,7 +631,6 @@ static int tvaudio_thread(void *data) } done: - complete_and_exit(&dev->thread.exit, 0); return 0; } @@ -782,7 +778,6 @@ static int tvaudio_thread_ddep(void *data) struct saa7134_dev *dev = data; u32 value, norms, clock; - daemonize("%s", dev->name); allow_signal(SIGTERM); clock = saa7134_boards[dev->board].audio_clock; @@ -796,7 +791,7 @@ static int tvaudio_thread_ddep(void *data) for (;;) { tvaudio_sleep(dev,-1); - if (dev->thread.shutdown || signal_pending(current)) + if (kthread_should_stop() || signal_pending(current)) goto done; restart: @@ -876,7 +871,6 @@ static int tvaudio_thread_ddep(void *data) } done: - complete_and_exit(&dev->thread.exit, 0); return 0; } @@ -973,7 +967,6 @@ int saa7134_tvaudio_getstereo(struct saa7134_dev *dev) int saa7134_tvaudio_init2(struct saa7134_dev *dev) { - DECLARE_MUTEX_LOCKED(sem); int (*my_thread)(void *data) = NULL; switch (dev->pci->device) { @@ -986,15 +979,15 @@ int saa7134_tvaudio_init2(struct saa7134_dev *dev) break; } - dev->thread.pid = -1; + dev->thread.thread = NULL; if (my_thread) { /* start tvaudio thread */ - init_waitqueue_head(&dev->thread.wq); - init_completion(&dev->thread.exit); - dev->thread.pid = kernel_thread(my_thread,dev,0); - if (dev->thread.pid < 0) + dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name); + if (IS_ERR(dev->thread.thread)) { printk(KERN_WARNING "%s: kernel_thread() failed\n", dev->name); + /* XXX: missing error handling here */ + } saa7134_tvaudio_do_scan(dev); } @@ -1005,11 +998,9 @@ int saa7134_tvaudio_init2(struct saa7134_dev *dev) int saa7134_tvaudio_fini(struct saa7134_dev *dev) { /* shutdown tvaudio thread */ - if (dev->thread.pid > 0) { - dev->thread.shutdown = 1; - wake_up_interruptible(&dev->thread.wq); - wait_for_completion(&dev->thread.exit); - } + if (dev->thread.thread) + kthread_stop(dev->thread.thread); + saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */ return 0; } @@ -1020,10 +1011,10 @@ int saa7134_tvaudio_do_scan(struct saa7134_dev *dev) dprintk("sound IF not in use, skipping scan\n"); dev->automute = 0; saa7134_tvaudio_setmute(dev); - } else if (dev->thread.pid >= 0) { + } else if (dev->thread.thread) { dev->thread.mode = UNSET; dev->thread.scan2++; - wake_up_interruptible(&dev->thread.wq); + wake_up_process(dev->thread.thread); } else { dev->automute = 0; saa7134_tvaudio_setmute(dev); @@ -1040,4 +1031,3 @@ EXPORT_SYMBOL(saa7134_tvaudio_setmute); * c-basic-offset: 8 * End: */ - diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index 15623b27ad2e..d32a856192d7 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -238,6 +238,7 @@ struct saa7134_format { #define SAA7134_BOARD_ECS_TVP3XP_4CB6 113 #define SAA7134_BOARD_KWORLD_DVBT_210 114 #define SAA7134_BOARD_SABRENT_TV_PCB05 115 +#define SAA7134_BOARD_10MOONSTVMASTER3 116 #define SAA7134_MAXBOARDS 8 #define SAA7134_INPUT_MAX 8 @@ -327,10 +328,7 @@ struct saa7134_pgtable { /* tvaudio thread status */ struct saa7134_thread { - pid_t pid; - struct completion exit; - wait_queue_head_t wq; - unsigned int shutdown; + struct task_struct *thread; unsigned int scan1; unsigned int scan2; unsigned int mode; diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c index 339592e7722d..66cc92c0ea66 100644 --- a/drivers/media/video/saa7185.c +++ b/drivers/media/video/saa7185.c @@ -34,23 +34,23 @@ #include <linux/slab.h> #include <linux/mm.h> #include <linux/signal.h> +#include <linux/types.h> +#include <linux/i2c.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/page.h> -#include <linux/types.h> +#include <asm/uaccess.h> #include <linux/videodev.h> -#include <asm/uaccess.h> +#include <linux/video_encoder.h> MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); MODULE_AUTHOR("Dave Perks"); MODULE_LICENSE("GPL"); -#include <linux/i2c.h> #define I2C_NAME(s) (s)->name -#include <linux/video_encoder.h> static int debug = 0; module_param(debug, int, 0); diff --git a/drivers/media/video/sn9c102/sn9c102.h b/drivers/media/video/sn9c102/sn9c102.h index 11fcb49f5b99..2e3c3de793a7 100644 --- a/drivers/media/video/sn9c102/sn9c102.h +++ b/drivers/media/video/sn9c102/sn9c102.h @@ -36,6 +36,7 @@ #include <linux/mutex.h> #include <linux/string.h> #include <linux/stddef.h> +#include <linux/kref.h> #include "sn9c102_config.h" #include "sn9c102_sensor.h" @@ -94,7 +95,7 @@ struct sn9c102_module_param { }; static DEFINE_MUTEX(sn9c102_sysfs_lock); -static DECLARE_RWSEM(sn9c102_disconnect); +static DECLARE_RWSEM(sn9c102_dev_lock); struct sn9c102_device { struct video_device* v4ldev; @@ -122,12 +123,14 @@ struct sn9c102_device { struct sn9c102_module_param module_param; + struct kref kref; enum sn9c102_dev_state state; u8 users; - struct mutex dev_mutex, fileop_mutex; + struct completion probe; + struct mutex open_mutex, fileop_mutex; spinlock_t queue_lock; - wait_queue_head_t open, wait_frame, wait_stream; + wait_queue_head_t wait_open, wait_frame, wait_stream; }; /*****************************************************************************/ diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c index 74a204f8ebc8..36d8a455e0ec 100644 --- a/drivers/media/video/sn9c102/sn9c102_core.c +++ b/drivers/media/video/sn9c102/sn9c102_core.c @@ -48,8 +48,8 @@ #define SN9C102_MODULE_AUTHOR "(C) 2004-2007 Luca Risolia" #define SN9C102_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" #define SN9C102_MODULE_LICENSE "GPL" -#define SN9C102_MODULE_VERSION "1:1.44" -#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 1, 44) +#define SN9C102_MODULE_VERSION "1:1.47" +#define SN9C102_MODULE_VERSION_CODE KERNEL_VERSION(1, 1, 47) /*****************************************************************************/ @@ -64,9 +64,10 @@ MODULE_LICENSE(SN9C102_MODULE_LICENSE); static short video_nr[] = {[0 ... SN9C102_MAX_DEVICES-1] = -1}; module_param_array(video_nr, short, NULL, 0444); MODULE_PARM_DESC(video_nr, - "\n<-1|n[,...]> Specify V4L2 minor mode number." - "\n -1 = use next available (default)" - "\n n = use minor number n (integer >= 0)" + " <-1|n[,...]>" + "\nSpecify V4L2 minor mode number." + "\n-1 = use next available (default)" + "\n n = use minor number n (integer >= 0)" "\nYou can specify up to "__MODULE_STRING(SN9C102_MAX_DEVICES) " cameras this way." "\nFor example:" @@ -79,13 +80,14 @@ static short force_munmap[] = {[0 ... SN9C102_MAX_DEVICES-1] = SN9C102_FORCE_MUNMAP}; module_param_array(force_munmap, bool, NULL, 0444); MODULE_PARM_DESC(force_munmap, - "\n<0|1[,...]> Force the application to unmap previously" + " <0|1[,...]>" + "\nForce the application to unmap previously" "\nmapped buffer memory before calling any VIDIOC_S_CROP or" "\nVIDIOC_S_FMT ioctl's. Not all the applications support" "\nthis feature. This parameter is specific for each" "\ndetected camera." - "\n 0 = do not force memory unmapping" - "\n 1 = force memory unmapping (save memory)" + "\n0 = do not force memory unmapping" + "\n1 = force memory unmapping (save memory)" "\nDefault value is "__MODULE_STRING(SN9C102_FORCE_MUNMAP)"." "\n"); @@ -93,7 +95,8 @@ static unsigned int frame_timeout[] = {[0 ... SN9C102_MAX_DEVICES-1] = SN9C102_FRAME_TIMEOUT}; module_param_array(frame_timeout, uint, NULL, 0644); MODULE_PARM_DESC(frame_timeout, - "\n<0|n[,...]> Timeout for a video frame in seconds before" + " <0|n[,...]>" + "\nTimeout for a video frame in seconds before" "\nreturning an I/O error; 0 for infinity." "\nThis parameter is specific for each detected camera." "\nDefault value is "__MODULE_STRING(SN9C102_FRAME_TIMEOUT)"." @@ -103,7 +106,8 @@ MODULE_PARM_DESC(frame_timeout, static unsigned short debug = SN9C102_DEBUG_LEVEL; module_param(debug, ushort, 0644); MODULE_PARM_DESC(debug, - "\n<n> Debugging information level, from 0 to 3:" + " <n>" + "\nDebugging information level, from 0 to 3:" "\n0 = none (use carefully)" "\n1 = critical errors" "\n2 = significant informations" @@ -1616,7 +1620,8 @@ static int sn9c102_init(struct sn9c102_device* cam) int err = 0; if (!(cam->state & DEV_INITIALIZED)) { - init_waitqueue_head(&cam->open); + mutex_init(&cam->open_mutex); + init_waitqueue_head(&cam->wait_open); qctrl = s->qctrl; rect = &(s->cropcap.defrect); } else { /* use current values */ @@ -1706,21 +1711,27 @@ static int sn9c102_init(struct sn9c102_device* cam) return 0; } +/*****************************************************************************/ -static void sn9c102_release_resources(struct sn9c102_device* cam) +static void sn9c102_release_resources(struct kref *kref) { + struct sn9c102_device *cam; + mutex_lock(&sn9c102_sysfs_lock); + cam = container_of(kref, struct sn9c102_device, kref); + DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor); video_set_drvdata(cam->v4ldev, NULL); video_unregister_device(cam->v4ldev); + usb_put_dev(cam->usbdev); + kfree(cam->control_buffer); + kfree(cam); mutex_unlock(&sn9c102_sysfs_lock); - kfree(cam->control_buffer); } -/*****************************************************************************/ static int sn9c102_open(struct inode* inode, struct file* filp) { @@ -1728,43 +1739,78 @@ static int sn9c102_open(struct inode* inode, struct file* filp) int err = 0; /* - This is the only safe way to prevent race conditions with - disconnect + A read_trylock() in open() is the only safe way to prevent race + conditions with disconnect(), one close() and multiple (not + necessarily simultaneous) attempts to open(). For example, it + prevents from waiting for a second access, while the device + structure is being deallocated, after a possible disconnect() and + during a following close() holding the write lock: given that, after + this deallocation, no access will be possible anymore, using the + non-trylock version would have let open() gain the access to the + device structure improperly. + For this reason the lock must also not be per-device. */ - if (!down_read_trylock(&sn9c102_disconnect)) + if (!down_read_trylock(&sn9c102_dev_lock)) return -ERESTARTSYS; cam = video_get_drvdata(video_devdata(filp)); - if (mutex_lock_interruptible(&cam->dev_mutex)) { - up_read(&sn9c102_disconnect); + if (wait_for_completion_interruptible(&cam->probe)) { + up_read(&sn9c102_dev_lock); + return -ERESTARTSYS; + } + + kref_get(&cam->kref); + + /* + Make sure to isolate all the simultaneous opens. + */ + if (mutex_lock_interruptible(&cam->open_mutex)) { + kref_put(&cam->kref, sn9c102_release_resources); + up_read(&sn9c102_dev_lock); return -ERESTARTSYS; } + if (cam->state & DEV_DISCONNECTED) { + DBG(1, "Device not present"); + err = -ENODEV; + goto out; + } + if (cam->users) { - DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor); + DBG(2, "Device /dev/video%d is already in use", + cam->v4ldev->minor); DBG(3, "Simultaneous opens are not supported"); + /* + open() must follow the open flags and should block + eventually while the device is in use. + */ if ((filp->f_flags & O_NONBLOCK) || (filp->f_flags & O_NDELAY)) { err = -EWOULDBLOCK; goto out; } - mutex_unlock(&cam->dev_mutex); - err = wait_event_interruptible_exclusive(cam->open, - cam->state & DEV_DISCONNECTED + DBG(2, "A blocking open() has been requested. Wait for the " + "device to be released..."); + up_read(&sn9c102_dev_lock); + /* + We will not release the "open_mutex" lock, so that only one + process can be in the wait queue below. This way the process + will be sleeping while holding the lock, without loosing its + priority after any wake_up(). + */ + err = wait_event_interruptible_exclusive(cam->wait_open, + (cam->state & DEV_DISCONNECTED) || !cam->users); - if (err) { - up_read(&sn9c102_disconnect); - return err; - } + down_read(&sn9c102_dev_lock); + if (err) + goto out; if (cam->state & DEV_DISCONNECTED) { - up_read(&sn9c102_disconnect); - return -ENODEV; + err = -ENODEV; + goto out; } - mutex_lock(&cam->dev_mutex); } - if (cam->state & DEV_MISCONFIGURED) { err = sn9c102_init(cam); if (err) { @@ -1789,36 +1835,33 @@ static int sn9c102_open(struct inode* inode, struct file* filp) DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor); out: - mutex_unlock(&cam->dev_mutex); - up_read(&sn9c102_disconnect); + mutex_unlock(&cam->open_mutex); + if (err) + kref_put(&cam->kref, sn9c102_release_resources); + + up_read(&sn9c102_dev_lock); return err; } static int sn9c102_release(struct inode* inode, struct file* filp) { - struct sn9c102_device* cam = video_get_drvdata(video_devdata(filp)); + struct sn9c102_device* cam; - mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */ + down_write(&sn9c102_dev_lock); - sn9c102_stop_transfer(cam); + cam = video_get_drvdata(video_devdata(filp)); + sn9c102_stop_transfer(cam); sn9c102_release_buffers(cam); - - if (cam->state & DEV_DISCONNECTED) { - sn9c102_release_resources(cam); - usb_put_dev(cam->usbdev); - mutex_unlock(&cam->dev_mutex); - kfree(cam); - return 0; - } - cam->users--; - wake_up_interruptible_nr(&cam->open, 1); + wake_up_interruptible_nr(&cam->wait_open, 1); DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor); - mutex_unlock(&cam->dev_mutex); + kref_put(&cam->kref, sn9c102_release_resources); + + up_write(&sn9c102_dev_lock); return 0; } @@ -2085,7 +2128,6 @@ static int sn9c102_mmap(struct file* filp, struct vm_area_struct *vma) vma->vm_ops = &sn9c102_vm_ops; vma->vm_private_data = &cam->frame[i]; - sn9c102_vm_open(vma); mutex_unlock(&cam->fileop_mutex); @@ -3215,8 +3257,6 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) goto fail; } - mutex_init(&cam->dev_mutex); - r = sn9c102_read_reg(cam, 0x00); if (r < 0 || (r != 0x10 && r != 0x11 && r != 0x12)) { DBG(1, "Sorry, this is not a SN9C1xx-based camera " @@ -3282,7 +3322,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) cam->v4ldev->release = video_device_release; video_set_drvdata(cam->v4ldev, cam); - mutex_lock(&cam->dev_mutex); + init_completion(&cam->probe); err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER, video_nr[dev_nr]); @@ -3292,7 +3332,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) DBG(1, "Free /dev/videoX node not found"); video_nr[dev_nr] = -1; dev_nr = (dev_nr < SN9C102_MAX_DEVICES-1) ? dev_nr+1 : 0; - mutex_unlock(&cam->dev_mutex); + complete_all(&cam->probe); goto fail; } @@ -3318,8 +3358,10 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) #endif usb_set_intfdata(intf, cam); + kref_init(&cam->kref); + usb_get_dev(cam->usbdev); - mutex_unlock(&cam->dev_mutex); + complete_all(&cam->probe); return 0; @@ -3336,40 +3378,31 @@ fail: static void sn9c102_usb_disconnect(struct usb_interface* intf) { - struct sn9c102_device* cam = usb_get_intfdata(intf); - - if (!cam) - return; + struct sn9c102_device* cam; - down_write(&sn9c102_disconnect); + down_write(&sn9c102_dev_lock); - mutex_lock(&cam->dev_mutex); + cam = usb_get_intfdata(intf); DBG(2, "Disconnecting %s...", cam->v4ldev->name); - wake_up_interruptible_all(&cam->open); - if (cam->users) { DBG(2, "Device /dev/video%d is open! Deregistration and " - "memory deallocation are deferred on close.", + "memory deallocation are deferred.", cam->v4ldev->minor); cam->state |= DEV_MISCONFIGURED; sn9c102_stop_transfer(cam); cam->state |= DEV_DISCONNECTED; wake_up_interruptible(&cam->wait_frame); wake_up(&cam->wait_stream); - usb_get_dev(cam->usbdev); - } else { + } else cam->state |= DEV_DISCONNECTED; - sn9c102_release_resources(cam); - } - mutex_unlock(&cam->dev_mutex); + wake_up_interruptible_all(&cam->wait_open); - if (!cam->users) - kfree(cam); + kref_put(&cam->kref, sn9c102_release_resources); - up_write(&sn9c102_disconnect); + up_write(&sn9c102_dev_lock); } diff --git a/drivers/media/video/sn9c102/sn9c102_ov7630.c b/drivers/media/video/sn9c102/sn9c102_ov7630.c index e6832347894f..e4856fd77982 100644 --- a/drivers/media/video/sn9c102/sn9c102_ov7630.c +++ b/drivers/media/video/sn9c102/sn9c102_ov7630.c @@ -104,6 +104,145 @@ static int ov7630_init(struct sn9c102_device* cam) err += sn9c102_i2c_write(cam, 0x74, 0x21); err += sn9c102_i2c_write(cam, 0x7d, 0xf7); break; + case BRIDGE_SN9C105: + case BRIDGE_SN9C120: + err = sn9c102_write_const_regs(cam, {0x40, 0x02}, {0x00, 0x03}, + {0x1a, 0x04}, {0x03, 0x10}, + {0x0a, 0x14}, {0xe2, 0x17}, + {0x0b, 0x18}, {0x00, 0x19}, + {0x1d, 0x1a}, {0x10, 0x1b}, + {0x02, 0x1c}, {0x03, 0x1d}, + {0x0f, 0x1e}, {0x0c, 0x1f}, + {0x00, 0x20}, {0x24, 0x21}, + {0x3b, 0x22}, {0x47, 0x23}, + {0x60, 0x24}, {0x71, 0x25}, + {0x80, 0x26}, {0x8f, 0x27}, + {0x9d, 0x28}, {0xaa, 0x29}, + {0xb8, 0x2a}, {0xc4, 0x2b}, + {0xd1, 0x2c}, {0xdd, 0x2d}, + {0xe8, 0x2e}, {0xf4, 0x2f}, + {0xff, 0x30}, {0x00, 0x3f}, + {0xc7, 0x40}, {0x01, 0x41}, + {0x44, 0x42}, {0x00, 0x43}, + {0x44, 0x44}, {0x00, 0x45}, + {0x44, 0x46}, {0x00, 0x47}, + {0xc7, 0x48}, {0x01, 0x49}, + {0xc7, 0x4a}, {0x01, 0x4b}, + {0xc7, 0x4c}, {0x01, 0x4d}, + {0x44, 0x4e}, {0x00, 0x4f}, + {0x44, 0x50}, {0x00, 0x51}, + {0x44, 0x52}, {0x00, 0x53}, + {0xc7, 0x54}, {0x01, 0x55}, + {0xc7, 0x56}, {0x01, 0x57}, + {0xc7, 0x58}, {0x01, 0x59}, + {0x44, 0x5a}, {0x00, 0x5b}, + {0x44, 0x5c}, {0x00, 0x5d}, + {0x44, 0x5e}, {0x00, 0x5f}, + {0xc7, 0x60}, {0x01, 0x61}, + {0xc7, 0x62}, {0x01, 0x63}, + {0xc7, 0x64}, {0x01, 0x65}, + {0x44, 0x66}, {0x00, 0x67}, + {0x44, 0x68}, {0x00, 0x69}, + {0x44, 0x6a}, {0x00, 0x6b}, + {0xc7, 0x6c}, {0x01, 0x6d}, + {0xc7, 0x6e}, {0x01, 0x6f}, + {0xc7, 0x70}, {0x01, 0x71}, + {0x44, 0x72}, {0x00, 0x73}, + {0x44, 0x74}, {0x00, 0x75}, + {0x44, 0x76}, {0x00, 0x77}, + {0xc7, 0x78}, {0x01, 0x79}, + {0xc7, 0x7a}, {0x01, 0x7b}, + {0xc7, 0x7c}, {0x01, 0x7d}, + {0x44, 0x7e}, {0x00, 0x7f}, + {0x17, 0x84}, {0x00, 0x85}, + {0x2e, 0x86}, {0x00, 0x87}, + {0x09, 0x88}, {0x00, 0x89}, + {0xe8, 0x8a}, {0x0f, 0x8b}, + {0xda, 0x8c}, {0x0f, 0x8d}, + {0x40, 0x8e}, {0x00, 0x8f}, + {0x37, 0x90}, {0x00, 0x91}, + {0xcf, 0x92}, {0x0f, 0x93}, + {0xfa, 0x94}, {0x0f, 0x95}, + {0x00, 0x96}, {0x00, 0x97}, + {0x00, 0x98}, {0x66, 0x99}, + {0x00, 0x9a}, {0x40, 0x9b}, + {0x20, 0x9c}, {0x00, 0x9d}, + {0x00, 0x9e}, {0x00, 0x9f}, + {0x2d, 0xc0}, {0x2d, 0xc1}, + {0x3a, 0xc2}, {0x00, 0xc3}, + {0x04, 0xc4}, {0x3f, 0xc5}, + {0x00, 0xc6}, {0x00, 0xc7}, + {0x50, 0xc8}, {0x3c, 0xc9}, + {0x28, 0xca}, {0xd8, 0xcb}, + {0x14, 0xcc}, {0xec, 0xcd}, + {0x32, 0xce}, {0xdd, 0xcf}, + {0x32, 0xd0}, {0xdd, 0xd1}, + {0x6a, 0xd2}, {0x50, 0xd3}, + {0x60, 0xd4}, {0x00, 0xd5}, + {0x00, 0xd6}); + + err += sn9c102_i2c_write(cam, 0x12, 0x80); + err += sn9c102_i2c_write(cam, 0x12, 0x48); + err += sn9c102_i2c_write(cam, 0x01, 0x80); + err += sn9c102_i2c_write(cam, 0x02, 0x80); + err += sn9c102_i2c_write(cam, 0x03, 0x80); + err += sn9c102_i2c_write(cam, 0x04, 0x10); + err += sn9c102_i2c_write(cam, 0x05, 0x20); + err += sn9c102_i2c_write(cam, 0x06, 0x80); + err += sn9c102_i2c_write(cam, 0x11, 0x00); + err += sn9c102_i2c_write(cam, 0x0c, 0x20); + err += sn9c102_i2c_write(cam, 0x0d, 0x20); + err += sn9c102_i2c_write(cam, 0x15, 0x80); + err += sn9c102_i2c_write(cam, 0x16, 0x03); + err += sn9c102_i2c_write(cam, 0x17, 0x1b); + err += sn9c102_i2c_write(cam, 0x18, 0xbd); + err += sn9c102_i2c_write(cam, 0x19, 0x05); + err += sn9c102_i2c_write(cam, 0x1a, 0xf6); + err += sn9c102_i2c_write(cam, 0x1b, 0x04); + err += sn9c102_i2c_write(cam, 0x21, 0x1b); + err += sn9c102_i2c_write(cam, 0x22, 0x00); + err += sn9c102_i2c_write(cam, 0x23, 0xde); + err += sn9c102_i2c_write(cam, 0x24, 0x10); + err += sn9c102_i2c_write(cam, 0x25, 0x8a); + err += sn9c102_i2c_write(cam, 0x26, 0xa0); + err += sn9c102_i2c_write(cam, 0x27, 0xca); + err += sn9c102_i2c_write(cam, 0x28, 0xa2); + err += sn9c102_i2c_write(cam, 0x29, 0x74); + err += sn9c102_i2c_write(cam, 0x2a, 0x88); + err += sn9c102_i2c_write(cam, 0x2b, 0x34); + err += sn9c102_i2c_write(cam, 0x2c, 0x88); + err += sn9c102_i2c_write(cam, 0x2e, 0x00); + err += sn9c102_i2c_write(cam, 0x2f, 0x00); + err += sn9c102_i2c_write(cam, 0x30, 0x00); + err += sn9c102_i2c_write(cam, 0x32, 0xc2); + err += sn9c102_i2c_write(cam, 0x33, 0x08); + err += sn9c102_i2c_write(cam, 0x4c, 0x40); + err += sn9c102_i2c_write(cam, 0x4d, 0xf3); + err += sn9c102_i2c_write(cam, 0x60, 0x05); + err += sn9c102_i2c_write(cam, 0x61, 0x40); + err += sn9c102_i2c_write(cam, 0x62, 0x12); + err += sn9c102_i2c_write(cam, 0x63, 0x57); + err += sn9c102_i2c_write(cam, 0x64, 0x73); + err += sn9c102_i2c_write(cam, 0x65, 0x00); + err += sn9c102_i2c_write(cam, 0x66, 0x55); + err += sn9c102_i2c_write(cam, 0x67, 0x01); + err += sn9c102_i2c_write(cam, 0x68, 0xac); + err += sn9c102_i2c_write(cam, 0x69, 0x38); + err += sn9c102_i2c_write(cam, 0x6f, 0x1f); + err += sn9c102_i2c_write(cam, 0x70, 0x01); + err += sn9c102_i2c_write(cam, 0x71, 0x00); + err += sn9c102_i2c_write(cam, 0x72, 0x10); + err += sn9c102_i2c_write(cam, 0x73, 0x50); + err += sn9c102_i2c_write(cam, 0x74, 0x20); + err += sn9c102_i2c_write(cam, 0x76, 0x01); + err += sn9c102_i2c_write(cam, 0x77, 0xf3); + err += sn9c102_i2c_write(cam, 0x78, 0x90); + err += sn9c102_i2c_write(cam, 0x79, 0x98); + err += sn9c102_i2c_write(cam, 0x7a, 0x98); + err += sn9c102_i2c_write(cam, 0x7b, 0x00); + err += sn9c102_i2c_write(cam, 0x7c, 0x38); + err += sn9c102_i2c_write(cam, 0x7d, 0xff); + break; default: break; } @@ -115,6 +254,7 @@ static int ov7630_init(struct sn9c102_device* cam) static int ov7630_get_ctrl(struct sn9c102_device* cam, struct v4l2_control* ctrl) { + enum sn9c102_bridge bridge = sn9c102_get_bridge(cam); int err = 0; switch (ctrl->id) { @@ -123,13 +263,20 @@ static int ov7630_get_ctrl(struct sn9c102_device* cam, return -EIO; break; case V4L2_CID_RED_BALANCE: - ctrl->value = sn9c102_pread_reg(cam, 0x07); + if (bridge == BRIDGE_SN9C105 || bridge == BRIDGE_SN9C120) + ctrl->value = sn9c102_pread_reg(cam, 0x05); + else + ctrl->value = sn9c102_pread_reg(cam, 0x07); break; case V4L2_CID_BLUE_BALANCE: ctrl->value = sn9c102_pread_reg(cam, 0x06); break; case SN9C102_V4L2_CID_GREEN_BALANCE: - ctrl->value = sn9c102_pread_reg(cam, 0x05); + if (bridge == BRIDGE_SN9C105 || bridge == BRIDGE_SN9C120) + ctrl->value = sn9c102_pread_reg(cam, 0x07); + else + ctrl->value = sn9c102_pread_reg(cam, 0x05); + break; break; case V4L2_CID_GAIN: if ((ctrl->value = sn9c102_i2c_read(cam, 0x00)) < 0) @@ -177,6 +324,7 @@ static int ov7630_get_ctrl(struct sn9c102_device* cam, static int ov7630_set_ctrl(struct sn9c102_device* cam, const struct v4l2_control* ctrl) { + enum sn9c102_bridge bridge = sn9c102_get_bridge(cam); int err = 0; switch (ctrl->id) { @@ -184,13 +332,19 @@ static int ov7630_set_ctrl(struct sn9c102_device* cam, err += sn9c102_i2c_write(cam, 0x10, ctrl->value); break; case V4L2_CID_RED_BALANCE: - err += sn9c102_write_reg(cam, ctrl->value, 0x07); + if (bridge == BRIDGE_SN9C105 || bridge == BRIDGE_SN9C120) + err += sn9c102_write_reg(cam, ctrl->value, 0x05); + else + err += sn9c102_write_reg(cam, ctrl->value, 0x07); break; case V4L2_CID_BLUE_BALANCE: err += sn9c102_write_reg(cam, ctrl->value, 0x06); break; case SN9C102_V4L2_CID_GREEN_BALANCE: - err += sn9c102_write_reg(cam, ctrl->value, 0x05); + if (bridge == BRIDGE_SN9C105 || bridge == BRIDGE_SN9C120) + err += sn9c102_write_reg(cam, ctrl->value, 0x07); + else + err += sn9c102_write_reg(cam, ctrl->value, 0x05); break; case V4L2_CID_GAIN: err += sn9c102_i2c_write(cam, 0x00, ctrl->value); @@ -227,8 +381,21 @@ static int ov7630_set_crop(struct sn9c102_device* cam, { struct sn9c102_sensor* s = sn9c102_get_sensor(cam); int err = 0; - u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 1, - v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1; + u8 h_start = 0, v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1; + + switch (sn9c102_get_bridge(cam)) { + case BRIDGE_SN9C101: + case BRIDGE_SN9C102: + case BRIDGE_SN9C103: + h_start = (u8)(rect->left - s->cropcap.bounds.left) + 1; + break; + case BRIDGE_SN9C105: + case BRIDGE_SN9C120: + h_start = (u8)(rect->left - s->cropcap.bounds.left) + 4; + break; + default: + break; + } err += sn9c102_write_reg(cam, h_start, 0x12); err += sn9c102_write_reg(cam, v_start, 0x13); @@ -242,10 +409,28 @@ static int ov7630_set_pix_format(struct sn9c102_device* cam, { int err = 0; - if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) - err += sn9c102_write_reg(cam, 0x20, 0x19); - else - err += sn9c102_write_reg(cam, 0x50, 0x19); + switch (sn9c102_get_bridge(cam)) { + case BRIDGE_SN9C101: + case BRIDGE_SN9C102: + case BRIDGE_SN9C103: + if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) + err += sn9c102_write_reg(cam, 0x50, 0x19); + else + err += sn9c102_write_reg(cam, 0x20, 0x19); + break; + case BRIDGE_SN9C105: + case BRIDGE_SN9C120: + if (pix->pixelformat == V4L2_PIX_FMT_SBGGR8) { + err += sn9c102_write_reg(cam, 0xe5, 0x17); + err += sn9c102_i2c_write(cam, 0x11, 0x04); + } else { + err += sn9c102_write_reg(cam, 0xe2, 0x17); + err += sn9c102_i2c_write(cam, 0x11, 0x02); + } + break; + default: + break; + } return err; } @@ -254,7 +439,8 @@ static int ov7630_set_pix_format(struct sn9c102_device* cam, static const struct sn9c102_sensor ov7630 = { .name = "OV7630", .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>", - .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102 | BRIDGE_SN9C103, + .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102 | BRIDGE_SN9C103 | + BRIDGE_SN9C105 | BRIDGE_SN9C120, .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE, .frequency = SN9C102_I2C_100KHZ, .interface = SN9C102_I2C_2WIRES, @@ -417,6 +603,12 @@ int sn9c102_probe_ov7630(struct sn9c102_device* cam) err += sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01}); break; + case BRIDGE_SN9C105: + case BRIDGE_SN9C120: + err = sn9c102_write_const_regs(cam, {0x01, 0xf1}, {0x00, 0xf1}, + {0x29, 0x01}, {0x74, 0x02}, + {0x0e, 0x01}, {0x44, 0x01}); + break; default: break; } diff --git a/drivers/media/video/sn9c102/sn9c102_ov7660.c b/drivers/media/video/sn9c102/sn9c102_ov7660.c index 4b6474048a72..8aae416ba8ec 100644 --- a/drivers/media/video/sn9c102/sn9c102_ov7660.c +++ b/drivers/media/video/sn9c102/sn9c102_ov7660.c @@ -41,65 +41,65 @@ static int ov7660_init(struct sn9c102_device* cam) {0xbb, 0x2a}, {0xc7, 0x2b}, {0xd3, 0x2c}, {0xde, 0x2d}, {0xea, 0x2e}, {0xf4, 0x2f}, - {0xff, 0x30}, {0x00, 0x3F}, - {0xC7, 0x40}, {0x01, 0x41}, + {0xff, 0x30}, {0x00, 0x3f}, + {0xc7, 0x40}, {0x01, 0x41}, {0x44, 0x42}, {0x00, 0x43}, {0x44, 0x44}, {0x00, 0x45}, {0x44, 0x46}, {0x00, 0x47}, - {0xC7, 0x48}, {0x01, 0x49}, - {0xC7, 0x4A}, {0x01, 0x4B}, - {0xC7, 0x4C}, {0x01, 0x4D}, - {0x44, 0x4E}, {0x00, 0x4F}, + {0xc7, 0x48}, {0x01, 0x49}, + {0xc7, 0x4a}, {0x01, 0x4b}, + {0xc7, 0x4c}, {0x01, 0x4d}, + {0x44, 0x4e}, {0x00, 0x4f}, {0x44, 0x50}, {0x00, 0x51}, {0x44, 0x52}, {0x00, 0x53}, - {0xC7, 0x54}, {0x01, 0x55}, - {0xC7, 0x56}, {0x01, 0x57}, - {0xC7, 0x58}, {0x01, 0x59}, - {0x44, 0x5A}, {0x00, 0x5B}, - {0x44, 0x5C}, {0x00, 0x5D}, - {0x44, 0x5E}, {0x00, 0x5F}, - {0xC7, 0x60}, {0x01, 0x61}, - {0xC7, 0x62}, {0x01, 0x63}, - {0xC7, 0x64}, {0x01, 0x65}, + {0xc7, 0x54}, {0x01, 0x55}, + {0xc7, 0x56}, {0x01, 0x57}, + {0xc7, 0x58}, {0x01, 0x59}, + {0x44, 0x5a}, {0x00, 0x5b}, + {0x44, 0x5c}, {0x00, 0x5d}, + {0x44, 0x5e}, {0x00, 0x5f}, + {0xc7, 0x60}, {0x01, 0x61}, + {0xc7, 0x62}, {0x01, 0x63}, + {0xc7, 0x64}, {0x01, 0x65}, {0x44, 0x66}, {0x00, 0x67}, {0x44, 0x68}, {0x00, 0x69}, - {0x44, 0x6A}, {0x00, 0x6B}, - {0xC7, 0x6C}, {0x01, 0x6D}, - {0xC7, 0x6E}, {0x01, 0x6F}, - {0xC7, 0x70}, {0x01, 0x71}, + {0x44, 0x6a}, {0x00, 0x6b}, + {0xc7, 0x6c}, {0x01, 0x6d}, + {0xc7, 0x6e}, {0x01, 0x6f}, + {0xc7, 0x70}, {0x01, 0x71}, {0x44, 0x72}, {0x00, 0x73}, {0x44, 0x74}, {0x00, 0x75}, {0x44, 0x76}, {0x00, 0x77}, - {0xC7, 0x78}, {0x01, 0x79}, - {0xC7, 0x7A}, {0x01, 0x7B}, - {0xC7, 0x7C}, {0x01, 0x7D}, - {0x44, 0x7E}, {0x00, 0x7F}, + {0xc7, 0x78}, {0x01, 0x79}, + {0xc7, 0x7a}, {0x01, 0x7b}, + {0xc7, 0x7c}, {0x01, 0x7d}, + {0x44, 0x7e}, {0x00, 0x7f}, {0x14, 0x84}, {0x00, 0x85}, {0x27, 0x86}, {0x00, 0x87}, {0x07, 0x88}, {0x00, 0x89}, - {0xEC, 0x8A}, {0x0f, 0x8B}, - {0xD8, 0x8C}, {0x0f, 0x8D}, - {0x3D, 0x8E}, {0x00, 0x8F}, - {0x3D, 0x90}, {0x00, 0x91}, - {0xCD, 0x92}, {0x0f, 0x93}, + {0xec, 0x8a}, {0x0f, 0x8b}, + {0xd8, 0x8c}, {0x0f, 0x8d}, + {0x3d, 0x8e}, {0x00, 0x8f}, + {0x3d, 0x90}, {0x00, 0x91}, + {0xcd, 0x92}, {0x0f, 0x93}, {0xf7, 0x94}, {0x0f, 0x95}, - {0x0C, 0x96}, {0x00, 0x97}, + {0x0c, 0x96}, {0x00, 0x97}, {0x00, 0x98}, {0x66, 0x99}, - {0x05, 0x9A}, {0x00, 0x9B}, - {0x04, 0x9C}, {0x00, 0x9D}, - {0x08, 0x9E}, {0x00, 0x9F}, - {0x2D, 0xC0}, {0x2D, 0xC1}, - {0x3A, 0xC2}, {0x05, 0xC3}, - {0x04, 0xC4}, {0x3F, 0xC5}, - {0x00, 0xC6}, {0x00, 0xC7}, - {0x50, 0xC8}, {0x3C, 0xC9}, - {0x28, 0xCA}, {0xD8, 0xCB}, - {0x14, 0xCC}, {0xEC, 0xCD}, - {0x32, 0xCE}, {0xDD, 0xCF}, - {0x32, 0xD0}, {0xDD, 0xD1}, - {0x6A, 0xD2}, {0x50, 0xD3}, - {0x00, 0xD4}, {0x00, 0xD5}, - {0x00, 0xD6}); + {0x05, 0x9a}, {0x00, 0x9b}, + {0x04, 0x9c}, {0x00, 0x9d}, + {0x08, 0x9e}, {0x00, 0x9f}, + {0x2d, 0xc0}, {0x2d, 0xc1}, + {0x3a, 0xc2}, {0x05, 0xc3}, + {0x04, 0xc4}, {0x3f, 0xc5}, + {0x00, 0xc6}, {0x00, 0xc7}, + {0x50, 0xc8}, {0x3C, 0xc9}, + {0x28, 0xca}, {0xd8, 0xcb}, + {0x14, 0xcc}, {0xec, 0xcd}, + {0x32, 0xce}, {0xdd, 0xcf}, + {0x32, 0xd0}, {0xdd, 0xd1}, + {0x6a, 0xd2}, {0x50, 0xd3}, + {0x00, 0xd4}, {0x00, 0xd5}, + {0x00, 0xd6}); err += sn9c102_i2c_write(cam, 0x12, 0x80); err += sn9c102_i2c_write(cam, 0x11, 0x09); diff --git a/drivers/media/video/stradis.c b/drivers/media/video/stradis.c index 3e736be5de84..eb220461ac77 100644 --- a/drivers/media/video/stradis.c +++ b/drivers/media/video/stradis.c @@ -1321,7 +1321,7 @@ static int saa_ioctl(struct inode *inode, struct file *file, u32 format; if (copy_from_user(&p, arg, sizeof(p))) return -EFAULT; - if (p.palette < sizeof(palette2fmt) / sizeof(u32)) { + if (p.palette < ARRAY_SIZE(palette2fmt)) { format = palette2fmt[p.palette]; saa->win.color_fmt = format; saawrite(format | 0x60, diff --git a/drivers/media/video/stv680.c b/drivers/media/video/stv680.c index bf3aa8d2d57e..4dc5bc714b95 100644 --- a/drivers/media/video/stv680.c +++ b/drivers/media/video/stv680.c @@ -715,8 +715,11 @@ static int stv680_start_stream (struct usb_stv *stv680) stv680_video_irq, stv680); stv680->urb[i] = urb; err = usb_submit_urb (stv680->urb[i], GFP_KERNEL); - if (err) - PDEBUG (0, "STV(e): urb burned down in start stream"); + if (err) { + PDEBUG (0, "STV(e): urb burned down with err " + "%d in start stream %d", err, i); + goto nomem_err; + } } /* i STV680_NUMSBUF */ stv680->framecount = 0; diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c index 1a1bef0e9c3d..59cff5a3c59e 100644 --- a/drivers/media/video/tda8290.c +++ b/drivers/media/video/tda8290.c @@ -21,7 +21,17 @@ #include <linux/i2c.h> #include <linux/videodev.h> #include <linux/delay.h> -#include <media/tuner.h> +#include "tuner-driver.h" + +/* ---------------------------------------------------------------------- */ + +struct tda8290_priv { + unsigned char tda8290_easy_mode; + unsigned char tda827x_lpsel; + unsigned char tda827x_addr; + unsigned char tda827x_ver; + unsigned int sgIF; +}; /* ---------------------------------------------------------------------- */ @@ -76,7 +86,8 @@ static void tda827x_tune(struct i2c_client *c, u16 ifc, unsigned int freq) u32 N; int i; struct tuner *t = i2c_get_clientdata(c); - struct i2c_msg msg = {.addr = t->tda827x_addr, .flags = 0}; + struct tda8290_priv *priv = t->priv; + struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags = 0}; if (t->mode == V4L2_TUNER_RADIO) freq = freq / 1000; @@ -95,7 +106,7 @@ static void tda827x_tune(struct i2c_client *c, u16 ifc, unsigned int freq) tuner_reg[1] = (unsigned char)(N>>8); tuner_reg[2] = (unsigned char) N; tuner_reg[3] = 0x40; - tuner_reg[4] = 0x52 + (t->tda827x_lpsel << 5); + tuner_reg[4] = 0x52 + (priv->tda827x_lpsel << 5); tuner_reg[5] = (tda827x_analog[i].spd << 6) + (tda827x_analog[i].div1p5 <<5) + (tda827x_analog[i].bs <<3) + tda827x_analog[i].bp; tuner_reg[6] = 0x8f + (tda827x_analog[i].gc3 << 4); @@ -146,8 +157,9 @@ static void tda827x_tune(struct i2c_client *c, u16 ifc, unsigned int freq) static void tda827x_agcf(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); + struct tda8290_priv *priv = t->priv; unsigned char data[] = {0x80, 0x0c}; - struct i2c_msg msg = {.addr = t->tda827x_addr, .buf = data, + struct i2c_msg msg = {.addr = priv->tda827x_addr, .buf = data, .flags = 0, .len = 2}; i2c_transfer(c->adapter, &msg, 1); } @@ -234,7 +246,8 @@ static void tda827xa_tune(struct i2c_client *c, u16 ifc, unsigned int freq) u32 N; int i; struct tuner *t = i2c_get_clientdata(c); - struct i2c_msg msg = {.addr = t->tda827x_addr, .flags = 0, .buf = tuner_reg}; + struct tda8290_priv *priv = t->priv; + struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags = 0, .buf = tuner_reg}; tda827xa_lna_gain( c, 1); msleep(10); @@ -271,7 +284,7 @@ static void tda827xa_tune(struct i2c_client *c, u16 ifc, unsigned int freq) tuner_reg[1] = 0xff; tuner_reg[2] = 0xe0; tuner_reg[3] = 0; - tuner_reg[4] = 0x99 + (t->tda827x_lpsel << 1); + tuner_reg[4] = 0x99 + (priv->tda827x_lpsel << 1); msg.len = 5; i2c_transfer(c->adapter, &msg, 1); @@ -311,15 +324,16 @@ static void tda827xa_tune(struct i2c_client *c, u16 ifc, unsigned int freq) i2c_transfer(c->adapter, &msg, 1); tuner_reg[0] = 0xc0; - tuner_reg[1] = 0x19 + (t->tda827x_lpsel << 1); + tuner_reg[1] = 0x19 + (priv->tda827x_lpsel << 1); i2c_transfer(c->adapter, &msg, 1); } static void tda827xa_agcf(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); + struct tda8290_priv *priv = t->priv; unsigned char data[] = {0x80, 0x2c}; - struct i2c_msg msg = {.addr = t->tda827x_addr, .buf = data, + struct i2c_msg msg = {.addr = priv->tda827x_addr, .buf = data, .flags = 0, .len = 2}; i2c_transfer(c->adapter, &msg, 1); } @@ -347,8 +361,9 @@ static void tda8290_i2c_bridge(struct i2c_client *c, int close) static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) { struct tuner *t = i2c_get_clientdata(c); + struct tda8290_priv *priv = t->priv; unsigned char soft_reset[] = { 0x00, 0x00 }; - unsigned char easy_mode[] = { 0x01, t->tda8290_easy_mode }; + unsigned char easy_mode[] = { 0x01, priv->tda8290_easy_mode }; unsigned char expert_mode[] = { 0x01, 0x80 }; unsigned char agc_out_on[] = { 0x02, 0x00 }; unsigned char gainset_off[] = { 0x28, 0x14 }; @@ -375,18 +390,18 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) i2c_master_send(c, soft_reset, 2); msleep(1); - expert_mode[1] = t->tda8290_easy_mode + 0x80; + expert_mode[1] = priv->tda8290_easy_mode + 0x80; i2c_master_send(c, expert_mode, 2); i2c_master_send(c, gainset_off, 2); i2c_master_send(c, if_agc_spd, 2); - if (t->tda8290_easy_mode & 0x60) + if (priv->tda8290_easy_mode & 0x60) i2c_master_send(c, adc_head_9, 2); else i2c_master_send(c, adc_head_6, 2); i2c_master_send(c, pll_bw_nom, 2); tda8290_i2c_bridge(c, 1); - if (t->tda827x_ver != 0) + if (priv->tda827x_ver != 0) tda827xa_tune(c, ifc, freq); else tda827x_tune(c, ifc, freq); @@ -418,7 +433,7 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) if ((agc_stat > 115) || !(pll_stat & 0x80)) { tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n", agc_stat, pll_stat & 0x80); - if (t->tda827x_ver != 0) + if (priv->tda827x_ver != 0) tda827xa_agcf(c); else tda827x_agcf(c); @@ -437,7 +452,7 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) } /* l/ l' deadlock? */ - if(t->tda8290_easy_mode & 0x60) { + if(priv->tda8290_easy_mode & 0x60) { i2c_master_send(c, &addr_adc_sat, 1); i2c_master_recv(c, &adc_sat, 1); i2c_master_send(c, &addr_pll_stat, 1); @@ -459,41 +474,42 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) static void set_audio(struct tuner *t) { + struct tda8290_priv *priv = t->priv; char* mode; - t->tda827x_lpsel = 0; + priv->tda827x_lpsel = 0; if (t->std & V4L2_STD_MN) { - t->sgIF = 92; - t->tda8290_easy_mode = 0x01; - t->tda827x_lpsel = 1; + priv->sgIF = 92; + priv->tda8290_easy_mode = 0x01; + priv->tda827x_lpsel = 1; mode = "MN"; } else if (t->std & V4L2_STD_B) { - t->sgIF = 108; - t->tda8290_easy_mode = 0x02; + priv->sgIF = 108; + priv->tda8290_easy_mode = 0x02; mode = "B"; } else if (t->std & V4L2_STD_GH) { - t->sgIF = 124; - t->tda8290_easy_mode = 0x04; + priv->sgIF = 124; + priv->tda8290_easy_mode = 0x04; mode = "GH"; } else if (t->std & V4L2_STD_PAL_I) { - t->sgIF = 124; - t->tda8290_easy_mode = 0x08; + priv->sgIF = 124; + priv->tda8290_easy_mode = 0x08; mode = "I"; } else if (t->std & V4L2_STD_DK) { - t->sgIF = 124; - t->tda8290_easy_mode = 0x10; + priv->sgIF = 124; + priv->tda8290_easy_mode = 0x10; mode = "DK"; } else if (t->std & V4L2_STD_SECAM_L) { - t->sgIF = 124; - t->tda8290_easy_mode = 0x20; + priv->sgIF = 124; + priv->tda8290_easy_mode = 0x20; mode = "L"; } else if (t->std & V4L2_STD_SECAM_LC) { - t->sgIF = 20; - t->tda8290_easy_mode = 0x40; + priv->sgIF = 20; + priv->tda8290_easy_mode = 0x40; mode = "LC"; } else { - t->sgIF = 124; - t->tda8290_easy_mode = 0x10; + priv->sgIF = 124; + priv->tda8290_easy_mode = 0x10; mode = "xx"; } tuner_dbg("setting tda8290 to system %s\n", mode); @@ -502,9 +518,10 @@ static void set_audio(struct tuner *t) static void set_tv_freq(struct i2c_client *c, unsigned int freq) { struct tuner *t = i2c_get_clientdata(c); + struct tda8290_priv *priv = t->priv; set_audio(t); - tda8290_tune(c, t->sgIF, freq); + tda8290_tune(c, priv->sgIF, freq); } static void set_radio_freq(struct i2c_client *c, unsigned int freq) @@ -528,13 +545,14 @@ static int has_signal(struct i2c_client *c) static void standby(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); + struct tda8290_priv *priv = t->priv; unsigned char cb1[] = { 0x30, 0xD0 }; unsigned char tda8290_standby[] = { 0x00, 0x02 }; unsigned char tda8290_agc_tri[] = { 0x02, 0x20 }; - struct i2c_msg msg = {.addr = t->tda827x_addr, .flags=0, .buf=cb1, .len = 2}; + struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2}; tda8290_i2c_bridge(c, 1); - if (t->tda827x_ver != 0) + if (priv->tda827x_ver != 0) cb1[1] = 0x90; i2c_transfer(c->adapter, &msg, 1); tda8290_i2c_bridge(c, 0); @@ -560,13 +578,14 @@ static void tda8290_init_if(struct i2c_client *c) static void tda8290_init_tuner(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); + struct tda8290_priv *priv = t->priv; unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf, 0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 }; unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b, 0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b }; - struct i2c_msg msg = {.addr = t->tda827x_addr, .flags=0, + struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=tda8275_init, .len = 14}; - if (t->tda827x_ver != 0) + if (priv->tda827x_ver != 0) msg.buf = tda8275a_init; tda8290_i2c_bridge(c, 1); @@ -576,14 +595,36 @@ static void tda8290_init_tuner(struct i2c_client *c) /*---------------------------------------------------------------------*/ +static void tda8290_release(struct i2c_client *c) +{ + struct tuner *t = i2c_get_clientdata(c); + + kfree(t->priv); + t->priv = NULL; +} + +static struct tuner_operations tda8290_tuner_ops = { + .set_tv_freq = set_tv_freq, + .set_radio_freq = set_radio_freq, + .has_signal = has_signal, + .standby = standby, + .release = tda8290_release, +}; + int tda8290_init(struct i2c_client *c) { + struct tda8290_priv *priv = NULL; struct tuner *t = i2c_get_clientdata(c); u8 data; int i, ret, tuners_found; u32 tuner_addrs; struct i2c_msg msg = {.flags=I2C_M_RD, .buf=&data, .len = 1}; + priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL); + if (priv == NULL) + return -ENOMEM; + t->priv = priv; + tda8290_i2c_bridge(c, 1); /* probe for tuner chip */ tuners_found = 0; @@ -618,7 +659,7 @@ int tda8290_init(struct i2c_client *c) tuner_addrs = tuner_addrs & 0xff; tuner_info ("setting tuner address to %x\n", tuner_addrs); } - t->tda827x_addr = tuner_addrs; + priv->tda827x_addr = tuner_addrs; msg.addr = tuner_addrs; tda8290_i2c_bridge(c, 1); @@ -627,18 +668,16 @@ int tda8290_init(struct i2c_client *c) tuner_warn ("TDA827x access failed!\n"); if ((data & 0x3c) == 0) { strlcpy(c->name, "tda8290+75", sizeof(c->name)); - t->tda827x_ver = 0; + priv->tda827x_ver = 0; } else { strlcpy(c->name, "tda8290+75a", sizeof(c->name)); - t->tda827x_ver = 2; + priv->tda827x_ver = 2; } tuner_info("type set to %s\n", c->name); - t->set_tv_freq = set_tv_freq; - t->set_radio_freq = set_radio_freq; - t->has_signal = has_signal; - t->standby = standby; - t->tda827x_lpsel = 0; + memcpy(&t->ops, &tda8290_tuner_ops, sizeof(struct tuner_operations)); + + priv->tda827x_lpsel = 0; t->mode = V4L2_TUNER_ANALOG_TV; tda8290_init_tuner(c); diff --git a/drivers/media/video/tda9887.c b/drivers/media/video/tda9887.c index fde576f1101c..a8f773274fe3 100644 --- a/drivers/media/video/tda9887.c +++ b/drivers/media/video/tda9887.c @@ -11,6 +11,7 @@ #include <media/v4l2-common.h> #include <media/tuner.h> +#include "tuner-driver.h" /* Chips: @@ -29,6 +30,9 @@ printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.name, \ i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) +struct tda9887_priv { + unsigned char data[4]; +}; /* ---------------------------------------------------------------------- */ @@ -508,10 +512,11 @@ static int tda9887_status(struct tuner *t) static void tda9887_configure(struct i2c_client *client) { struct tuner *t = i2c_get_clientdata(client); + struct tda9887_priv *priv = t->priv; int rc; - memset(t->tda9887_data,0,sizeof(t->tda9887_data)); - tda9887_set_tvnorm(t,t->tda9887_data); + memset(priv->data,0,sizeof(priv->data)); + tda9887_set_tvnorm(t,priv->data); /* A note on the port settings: These settings tend to depend on the specifics of the board. @@ -526,22 +531,22 @@ static void tda9887_configure(struct i2c_client *client) the ports should be set to active (0), but, again, that may differ depending on the precise hardware configuration. */ - t->tda9887_data[1] |= cOutputPort1Inactive; - t->tda9887_data[1] |= cOutputPort2Inactive; + priv->data[1] |= cOutputPort1Inactive; + priv->data[1] |= cOutputPort2Inactive; - tda9887_set_config(t,t->tda9887_data); - tda9887_set_insmod(t,t->tda9887_data); + tda9887_set_config(t,priv->data); + tda9887_set_insmod(t,priv->data); if (t->mode == T_STANDBY) { - t->tda9887_data[1] |= cForcedMuteAudioON; + priv->data[1] |= cForcedMuteAudioON; } tda9887_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n", - t->tda9887_data[1],t->tda9887_data[2],t->tda9887_data[3]); + priv->data[1],priv->data[2],priv->data[3]); if (tuner_debug > 1) - dump_write_message(t, t->tda9887_data); + dump_write_message(t, priv->data); - if (4 != (rc = i2c_master_send(&t->i2c,t->tda9887_data,4))) + if (4 != (rc = i2c_master_send(&t->i2c,priv->data,4))) tda9887_info("i2c i/o error: rc == %d (should be 4)\n",rc); if (tuner_debug > 2) { @@ -555,7 +560,8 @@ static void tda9887_configure(struct i2c_client *client) static void tda9887_tuner_status(struct i2c_client *client) { struct tuner *t = i2c_get_clientdata(client); - tda9887_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n", t->tda9887_data[1], t->tda9887_data[2], t->tda9887_data[3]); + struct tda9887_priv *priv = t->priv; + tda9887_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n", priv->data[1], priv->data[2], priv->data[3]); } static int tda9887_get_afc(struct i2c_client *client) @@ -586,20 +592,39 @@ static void tda9887_set_freq(struct i2c_client *client, unsigned int freq) tda9887_configure(client); } +static void tda9887_release(struct i2c_client *c) +{ + struct tuner *t = i2c_get_clientdata(c); + + kfree(t->priv); + t->priv = NULL; +} + +static struct tuner_operations tda9887_tuner_ops = { + .set_tv_freq = tda9887_set_freq, + .set_radio_freq = tda9887_set_freq, + .standby = tda9887_standby, + .tuner_status = tda9887_tuner_status, + .get_afc = tda9887_get_afc, + .release = tda9887_release, +}; + int tda9887_tuner_init(struct i2c_client *c) { + struct tda9887_priv *priv = NULL; struct tuner *t = i2c_get_clientdata(c); + priv = kzalloc(sizeof(struct tda9887_priv), GFP_KERNEL); + if (priv == NULL) + return -ENOMEM; + t->priv = priv; + strlcpy(c->name, "tda9887", sizeof(c->name)); tda9887_info("tda988[5/6/7] found @ 0x%x (%s)\n", t->i2c.addr, t->i2c.driver->driver.name); - t->set_tv_freq = tda9887_set_freq; - t->set_radio_freq = tda9887_set_freq; - t->standby = tda9887_standby; - t->tuner_status = tda9887_tuner_status; - t->get_afc = tda9887_get_afc; + memcpy(&t->ops, &tda9887_tuner_ops, sizeof(struct tuner_operations)); return 0; } diff --git a/drivers/media/video/tea5761.c b/drivers/media/video/tea5761.c new file mode 100644 index 000000000000..ae105c2cd0ac --- /dev/null +++ b/drivers/media/video/tea5761.c @@ -0,0 +1,243 @@ +/* + * For Philips TEA5761 FM Chip + * I2C address is allways 0x20 (0x10 at 7-bit mode). + * + * Copyright (c) 2005-2007 Mauro Carvalho Chehab (mchehab@infradead.org) + * This code is placed under the terms of the GNUv2 General Public License + * + */ + +#include <linux/i2c.h> +#include <linux/videodev.h> +#include <linux/delay.h> +#include <media/tuner.h> +#include "tuner-driver.h" + +#define PREFIX "TEA5761 " + +/* from tuner-core.c */ +extern int tuner_debug; + +/*****************************************************************************/ + +/*************************** + * TEA5761HN I2C registers * + ***************************/ + +/* INTREG - Read: bytes 0 and 1 / Write: byte 0 */ + + /* first byte for reading */ +#define TEA5761_INTREG_IFFLAG 0x10 +#define TEA5761_INTREG_LEVFLAG 0x8 +#define TEA5761_INTREG_FRRFLAG 0x2 +#define TEA5761_INTREG_BLFLAG 0x1 + + /* second byte for reading / byte for writing */ +#define TEA5761_INTREG_IFMSK 0x10 +#define TEA5761_INTREG_LEVMSK 0x8 +#define TEA5761_INTREG_FRMSK 0x2 +#define TEA5761_INTREG_BLMSK 0x1 + +/* FRQSET - Read: bytes 2 and 3 / Write: byte 1 and 2 */ + + /* First byte */ +#define TEA5761_FRQSET_SEARCH_UP 0x80 /* 1=Station search from botton to up */ +#define TEA5761_FRQSET_SEARCH_MODE 0x40 /* 1=Search mode */ + + /* Bits 0-5 for divider MSB */ + + /* Second byte */ + /* Bits 0-7 for divider LSB */ + +/* TNCTRL - Read: bytes 4 and 5 / Write: Bytes 3 and 4 */ + + /* first byte */ + +#define TEA5761_TNCTRL_PUPD_0 0x40 /* Power UP/Power Down MSB */ +#define TEA5761_TNCTRL_BLIM 0X20 /* 1= Japan Frequencies, 0= European frequencies */ +#define TEA5761_TNCTRL_SWPM 0x10 /* 1= software port is FRRFLAG */ +#define TEA5761_TNCTRL_IFCTC 0x08 /* 1= IF count time 15.02 ms, 0= IF count time 2.02 ms */ +#define TEA5761_TNCTRL_AFM 0x04 +#define TEA5761_TNCTRL_SMUTE 0x02 /* 1= Soft mute */ +#define TEA5761_TNCTRL_SNC 0x01 + + /* second byte */ + +#define TEA5761_TNCTRL_MU 0x80 /* 1=Hard mute */ +#define TEA5761_TNCTRL_SSL_1 0x40 +#define TEA5761_TNCTRL_SSL_0 0x20 +#define TEA5761_TNCTRL_HLSI 0x10 +#define TEA5761_TNCTRL_MST 0x08 /* 1 = mono */ +#define TEA5761_TNCTRL_SWP 0x04 +#define TEA5761_TNCTRL_DTC 0x02 /* 1 = deemphasis 50 us, 0 = deemphasis 75 us */ +#define TEA5761_TNCTRL_AHLSI 0x01 + +/* FRQCHECK - Read: bytes 6 and 7 */ + /* First byte */ + + /* Bits 0-5 for divider MSB */ + + /* Second byte */ + /* Bits 0-7 for divider LSB */ + +/* TUNCHECK - Read: bytes 8 and 9 */ + + /* First byte */ +#define TEA5761_TUNCHECK_IF_MASK 0x7e /* IF count */ +#define TEA5761_TUNCHECK_TUNTO 0x01 + + /* Second byte */ +#define TEA5761_TUNCHECK_LEV_MASK 0xf0 /* Level Count */ +#define TEA5761_TUNCHECK_LD 0x08 +#define TEA5761_TUNCHECK_STEREO 0x04 + +/* TESTREG - Read: bytes 10 and 11 / Write: bytes 5 and 6 */ + + /* All zero = no test mode */ + +/* MANID - Read: bytes 12 and 13 */ + + /* First byte - should be 0x10 */ +#define TEA5767_MANID_VERSION_MASK 0xf0 /* Version = 1 */ +#define TEA5767_MANID_ID_MSB_MASK 0x0f /* Manufacurer ID - should be 0 */ + + /* Second byte - Should be 0x2b */ + +#define TEA5767_MANID_ID_LSB_MASK 0xfe /* Manufacturer ID - should be 0x15 */ +#define TEA5767_MANID_IDAV 0x01 /* 1 = Chip has ID, 0 = Chip has no ID */ + +/* Chip ID - Read: bytes 14 and 15 */ + + /* First byte - should be 0x57 */ + + /* Second byte - should be 0x61 */ + +/*****************************************************************************/ + +static void set_tv_freq(struct i2c_client *c, unsigned int freq) +{ + struct tuner *t = i2c_get_clientdata(c); + + tuner_warn("This tuner doesn't support TV freq.\n"); +} + +#define FREQ_OFFSET 0 /* for TEA5767, it is 700 to give the right freq */ +static void tea5761_status_dump(unsigned char *buffer) +{ + unsigned int div, frq; + + div = ((buffer[2] & 0x3f) << 8) | buffer[3]; + + frq = 1000 * (div * 32768 / 1000 + FREQ_OFFSET + 225) / 4; /* Freq in KHz */ + + printk(PREFIX "Frequency %d.%03d KHz (divider = 0x%04x)\n", + frq / 1000, frq % 1000, div); +} + +/* Freq should be specifyed at 62.5 Hz */ +static void set_radio_freq(struct i2c_client *c, unsigned int frq) +{ + struct tuner *t = i2c_get_clientdata(c); + unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 }; + unsigned div; + int rc; + + tuner_dbg (PREFIX "radio freq counter %d\n", frq); + + if (t->mode == T_STANDBY) { + tuner_dbg("TEA5761 set to standby mode\n"); + buffer[5] |= TEA5761_TNCTRL_MU; + } else { + buffer[4] |= TEA5761_TNCTRL_PUPD_0; + } + + + if (t->audmode == V4L2_TUNER_MODE_MONO) { + tuner_dbg("TEA5761 set to mono\n"); + buffer[5] |= TEA5761_TNCTRL_MST; +; + } else { + tuner_dbg("TEA5761 set to stereo\n"); + } + + div = (1000 * (frq * 4 / 16 + 700 + 225) ) >> 15; + buffer[1] = (div >> 8) & 0x3f; + buffer[2] = div & 0xff; + + if (tuner_debug) + tea5761_status_dump(buffer); + + if (7 != (rc = i2c_master_send(c, buffer, 7))) + tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); +} + +static int tea5761_signal(struct i2c_client *c) +{ + unsigned char buffer[16]; + int rc; + struct tuner *t = i2c_get_clientdata(c); + + memset(buffer, 0, sizeof(buffer)); + if (16 != (rc = i2c_master_recv(c, buffer, 16))) + tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); + + return ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4)); +} + +static int tea5761_stereo(struct i2c_client *c) +{ + unsigned char buffer[16]; + int rc; + struct tuner *t = i2c_get_clientdata(c); + + memset(buffer, 0, sizeof(buffer)); + if (16 != (rc = i2c_master_recv(c, buffer, 16))) + tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); + + rc = buffer[9] & TEA5761_TUNCHECK_STEREO; + + tuner_dbg("TEA5761 radio ST GET = %02x\n", rc); + + return (rc ? V4L2_TUNER_SUB_STEREO : 0); +} + +int tea5761_autodetection(struct i2c_client *c) +{ + unsigned char buffer[16]; + int rc; + struct tuner *t = i2c_get_clientdata(c); + + if (16 != (rc = i2c_master_recv(c, buffer, 16))) { + tuner_warn("it is not a TEA5761. Received %i chars.\n", rc); + return EINVAL; + } + + if (!((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061))) { + tuner_warn("Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]); + return EINVAL; + } + tuner_warn("TEA5761 detected.\n"); + return 0; +} + +static struct tuner_operations tea5761_tuner_ops = { + .set_tv_freq = set_tv_freq, + .set_radio_freq = set_radio_freq, + .has_signal = tea5761_signal, + .is_stereo = tea5761_stereo, +}; + +int tea5761_tuner_init(struct i2c_client *c) +{ + struct tuner *t = i2c_get_clientdata(c); + + if (tea5761_autodetection(c) == EINVAL) + return EINVAL; + + tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5761HN FM Radio"); + strlcpy(c->name, "tea5761", sizeof(c->name)); + + memcpy(&t->ops, &tea5761_tuner_ops, sizeof(struct tuner_operations)); + + return (0); +} diff --git a/drivers/media/video/tea5767.c b/drivers/media/video/tea5767.c index d1c41781ccc4..4985d47a508f 100644 --- a/drivers/media/video/tea5767.c +++ b/drivers/media/video/tea5767.c @@ -13,7 +13,7 @@ #include <linux/i2c.h> #include <linux/videodev.h> #include <linux/delay.h> -#include <media/tuner.h> +#include "tuner-driver.h" #define PREFIX "TEA5767 " @@ -343,6 +343,14 @@ int tea5767_autodetection(struct i2c_client *c) return 0; } +static struct tuner_operations tea5767_tuner_ops = { + .set_tv_freq = set_tv_freq, + .set_radio_freq = set_radio_freq, + .has_signal = tea5767_signal, + .is_stereo = tea5767_stereo, + .standby = tea5767_standby, +}; + int tea5767_tuner_init(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); @@ -350,11 +358,7 @@ int tea5767_tuner_init(struct i2c_client *c) tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio"); strlcpy(c->name, "tea5767", sizeof(c->name)); - t->set_tv_freq = set_tv_freq; - t->set_radio_freq = set_radio_freq; - t->has_signal = tea5767_signal; - t->is_stereo = tea5767_stereo; - t->standby = tea5767_standby; + memcpy(&t->ops, &tea5767_tuner_ops, sizeof(struct tuner_operations)); return (0); } diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c index 505591a7abe9..e646465464a1 100644 --- a/drivers/media/video/tuner-core.c +++ b/drivers/media/video/tuner-core.c @@ -20,11 +20,15 @@ #include <media/tuner.h> #include <media/v4l2-common.h> +#include "tuner-driver.h" #define UNSET (-1U) /* standard i2c insmod options */ static unsigned short normal_i2c[] = { +#ifdef CONFIG_TUNER_TEA5761 + 0x10, +#endif 0x42, 0x43, 0x4a, 0x4b, /* tda8290 */ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, @@ -77,7 +81,7 @@ static void set_tv_freq(struct i2c_client *c, unsigned int freq) tuner_warn ("tuner type not set\n"); return; } - if (NULL == t->set_tv_freq) { + if (NULL == t->ops.set_tv_freq) { tuner_warn ("Tuner has no way to set tv freq\n"); return; } @@ -92,7 +96,7 @@ static void set_tv_freq(struct i2c_client *c, unsigned int freq) else freq = tv_range[1] * 16; } - t->set_tv_freq(c, freq); + t->ops.set_tv_freq(c, freq); } static void set_radio_freq(struct i2c_client *c, unsigned int freq) @@ -103,7 +107,7 @@ static void set_radio_freq(struct i2c_client *c, unsigned int freq) tuner_warn ("tuner type not set\n"); return; } - if (NULL == t->set_radio_freq) { + if (NULL == t->ops.set_radio_freq) { tuner_warn ("tuner has no way to set radio frequency\n"); return; } @@ -119,7 +123,7 @@ static void set_radio_freq(struct i2c_client *c, unsigned int freq) freq = radio_range[1] * 16000; } - t->set_radio_freq(c, freq); + t->ops.set_radio_freq(c, freq); } static void set_freq(struct i2c_client *c, unsigned long freq) @@ -174,6 +178,14 @@ static void set_type(struct i2c_client *c, unsigned int type, return; } + /* discard private data, in case set_type() was previously called */ + if (t->ops.release) + t->ops.release(c); + else { + kfree(t->priv); + t->priv = NULL; + } + switch (t->type) { case TUNER_MT2032: microtune_init(c); @@ -189,6 +201,16 @@ static void set_type(struct i2c_client *c, unsigned int type, } t->mode_mask = T_RADIO; break; +#ifdef CONFIG_TUNER_TEA5761 + case TUNER_TEA5761: + if (tea5761_tuner_init(c) == EINVAL) { + t->type = TUNER_ABSENT; + t->mode_mask = T_UNINITIALIZED; + return; + } + t->mode_mask = T_RADIO; + break; +#endif case TUNER_PHILIPS_FMD1216ME_MK3: buffer[0] = 0x0b; buffer[1] = 0xdc; @@ -408,11 +430,11 @@ static void tuner_status(struct i2c_client *client) tuner_info("Standard: 0x%08lx\n", (unsigned long)t->std); if (t->mode != V4L2_TUNER_RADIO) return; - if (t->has_signal) { - tuner_info("Signal strength: %d\n", t->has_signal(client)); + if (t->ops.has_signal) { + tuner_info("Signal strength: %d\n", t->ops.has_signal(client)); } - if (t->is_stereo) { - tuner_info("Stereo: %s\n", t->is_stereo(client) ? "yes" : "no"); + if (t->ops.is_stereo) { + tuner_info("Stereo: %s\n", t->ops.is_stereo(client) ? "yes" : "no"); } } @@ -437,10 +459,9 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind) memcpy(&t->i2c, &client_template, sizeof(struct i2c_client)); i2c_set_clientdata(&t->i2c, t); t->type = UNSET; - t->radio_if2 = 10700 * 1000; /* 10.7MHz - FM radio */ t->audmode = V4L2_TUNER_MODE_STEREO; t->mode_mask = T_UNINITIALIZED; - t->tuner_status = tuner_status; + t->ops.tuner_status = tuner_status; if (show_i2c) { unsigned char buffer[16]; @@ -460,6 +481,19 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind) /* autodetection code based on the i2c addr */ if (!no_autodetect) { switch (addr) { +#ifdef CONFIG_TUNER_TEA5761 + case 0x10: + if (tea5761_autodetection(&t->i2c) != EINVAL) { + t->type = TUNER_TEA5761; + t->mode_mask = T_RADIO; + t->mode = T_STANDBY; + t->radio_freq = 87.5 * 16000; /* Sets freq to FM range */ + default_mode_mask &= ~T_RADIO; + + goto register_client; + } + break; +#endif case 0x42: case 0x43: case 0x4a: @@ -533,6 +567,11 @@ static int tuner_detach(struct i2c_client *client) return err; } + if (t->ops.release) + t->ops.release(client); + else { + kfree(t->priv); + } kfree(t); return 0; } @@ -553,8 +592,8 @@ static inline int set_mode(struct i2c_client *client, struct tuner *t, int mode, if (check_mode(t, cmd) == EINVAL) { t->mode = T_STANDBY; - if (t->standby) - t->standby (client); + if (t->ops.standby) + t->ops.standby (client); return EINVAL; } return 0; @@ -602,8 +641,8 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg) if (check_mode(t, "TUNER_SET_STANDBY") == EINVAL) return 0; t->mode = T_STANDBY; - if (t->standby) - t->standby (client); + if (t->ops.standby) + t->ops.standby (client); break; #ifdef CONFIG_VIDEO_V4L1 case VIDIOCSAUDIO: @@ -662,10 +701,10 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg) return 0; if (V4L2_TUNER_RADIO == t->mode) { - if (t->has_signal) - vt->signal = t->has_signal(client); - if (t->is_stereo) { - if (t->is_stereo(client)) + if (t->ops.has_signal) + vt->signal = t->ops.has_signal(client); + if (t->ops.is_stereo) { + if (t->ops.is_stereo(client)) vt->flags |= VIDEO_TUNER_STEREO_ON; else @@ -693,8 +732,8 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg) if (check_v4l2(t) == EINVAL) return 0; - if (V4L2_TUNER_RADIO == t->mode && t->is_stereo) - va->mode = t->is_stereo(client) + if (V4L2_TUNER_RADIO == t->mode && t->ops.is_stereo) + va->mode = t->ops.is_stereo(client) ? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO; return 0; } @@ -759,8 +798,8 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg) switch_v4l2(); tuner->type = t->mode; - if (t->get_afc) - tuner->afc=t->get_afc(client); + if (t->ops.get_afc) + tuner->afc=t->ops.get_afc(client); if (t->mode == V4L2_TUNER_ANALOG_TV) tuner->capability |= V4L2_TUNER_CAP_NORM; if (t->mode != V4L2_TUNER_RADIO) { @@ -770,13 +809,13 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg) } /* radio mode */ - if (t->has_signal) - tuner->signal = t->has_signal(client); + if (t->ops.has_signal) + tuner->signal = t->ops.has_signal(client); tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; - if (t->is_stereo) { - tuner->rxsubchans = t->is_stereo(client) ? + if (t->ops.is_stereo) { + tuner->rxsubchans = t->ops.is_stereo(client) ? V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO; } @@ -804,8 +843,8 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg) break; } case VIDIOC_LOG_STATUS: - if (t->tuner_status) - t->tuner_status(client); + if (t->ops.tuner_status) + t->ops.tuner_status(client); break; } diff --git a/drivers/media/video/tuner-driver.h b/drivers/media/video/tuner-driver.h new file mode 100644 index 000000000000..0334a9125077 --- /dev/null +++ b/drivers/media/video/tuner-driver.h @@ -0,0 +1,107 @@ +/* + tuner-driver.h - interface for different tuners + + Copyright (C) 1997 Markus Schroeder (schroedm@uni-duesseldorf.de) + minor modifications by Ralph Metzler (rjkm@thp.uni-koeln.de) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#ifndef __TUNER_HW_H__ +#define __TUNER_HW_H__ + +#include <linux/videodev2.h> +#include <linux/i2c.h> + +extern unsigned const int tuner_count; + +struct tuner_operations { + void (*set_tv_freq)(struct i2c_client *c, unsigned int freq); + void (*set_radio_freq)(struct i2c_client *c, unsigned int freq); + int (*has_signal)(struct i2c_client *c); + int (*is_stereo)(struct i2c_client *c); + int (*get_afc)(struct i2c_client *c); + void (*tuner_status)(struct i2c_client *c); + void (*standby)(struct i2c_client *c); + void (*release)(struct i2c_client *c); +}; + +struct tuner { + /* device */ + struct i2c_client i2c; + + unsigned int type; /* chip type */ + + unsigned int mode; + unsigned int mode_mask; /* Combination of allowable modes */ + + unsigned int tv_freq; /* keep track of the current settings */ + unsigned int radio_freq; + u16 last_div; + unsigned int audmode; + v4l2_std_id std; + + int using_v4l2; + void *priv; + + /* used by tda9887 */ + unsigned int tda9887_config; + + unsigned int config; + int (*tuner_callback) (void *dev, int command,int arg); + + struct tuner_operations ops; +}; + +/* ------------------------------------------------------------------------ */ + +extern int default_tuner_init(struct i2c_client *c); + +extern int tda9887_tuner_init(struct i2c_client *c); + +extern int microtune_init(struct i2c_client *c); + +extern int tda8290_init(struct i2c_client *c); +extern int tda8290_probe(struct i2c_client *c); + +extern int tea5761_tuner_init(struct i2c_client *c); +extern int tea5761_autodetection(struct i2c_client *c); + +extern int tea5767_autodetection(struct i2c_client *c); +extern int tea5767_tuner_init(struct i2c_client *c); + +/* ------------------------------------------------------------------------ */ + +#define tuner_warn(fmt, arg...) do {\ + printk(KERN_WARNING "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \ + i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) +#define tuner_info(fmt, arg...) do {\ + printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \ + i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) +#define tuner_dbg(fmt, arg...) do {\ + extern int tuner_debug; \ + if (tuner_debug) \ + printk(KERN_DEBUG "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \ + i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) + +#endif /* __TUNER_HW_H__ */ + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * --------------------------------------------------------------------------- + * Local variables: + * c-basic-offset: 8 + * End: + */ diff --git a/drivers/media/video/tuner-simple.c b/drivers/media/video/tuner-simple.c index c40b92ce1fad..2d57e8bc0db3 100644 --- a/drivers/media/video/tuner-simple.c +++ b/drivers/media/video/tuner-simple.c @@ -8,6 +8,8 @@ #include <linux/videodev.h> #include <media/tuner.h> #include <media/v4l2-common.h> +#include <media/tuner-types.h> +#include "tuner-driver.h" static int offset = 0; module_param(offset, int, 0664); @@ -54,9 +56,9 @@ MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner"); sound 2 33.16 - - NICAM 33.05 33.05 39.80 */ -#define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */ -#define PHILIPS_MF_SET_PAL_L 0x03 // France -#define PHILIPS_MF_SET_PAL_L2 0x02 // L' +#define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */ +#define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */ +#define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */ /* Control byte */ @@ -207,11 +209,11 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq) /* 0x04 -> ??? PAL others / SECAM others ??? */ cb &= ~0x03; if (t->std & V4L2_STD_SECAM_L) //also valid for V4L2_STD_SECAM - cb |= PHILIPS_MF_SET_PAL_L; + cb |= PHILIPS_MF_SET_STD_L; else if (t->std & V4L2_STD_SECAM_LC) - cb |= PHILIPS_MF_SET_PAL_L2; + cb |= PHILIPS_MF_SET_STD_LC; else /* V4L2_STD_B|V4L2_STD_GH */ - cb |= PHILIPS_MF_SET_BG; + cb |= PHILIPS_MF_SET_STD_BG; break; case TUNER_TEMIC_4046FM5: @@ -479,6 +481,13 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq) tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc); } +static struct tuner_operations simple_tuner_ops = { + .set_tv_freq = default_set_tv_freq, + .set_radio_freq = default_set_radio_freq, + .has_signal = tuner_signal, + .is_stereo = tuner_stereo, +}; + int default_tuner_init(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); @@ -487,11 +496,7 @@ int default_tuner_init(struct i2c_client *c) t->type, tuners[t->type].name); strlcpy(c->name, tuners[t->type].name, sizeof(c->name)); - t->set_tv_freq = default_set_tv_freq; - t->set_radio_freq = default_set_radio_freq; - t->has_signal = tuner_signal; - t->is_stereo = tuner_stereo; - t->standby = NULL; + memcpy(&t->ops, &simple_tuner_ops, sizeof(struct tuner_operations)); return 0; } diff --git a/drivers/media/video/tuner-types.c b/drivers/media/video/tuner-types.c index 74c3e6f96f1a..417f642b4359 100644 --- a/drivers/media/video/tuner-types.c +++ b/drivers/media/video/tuner-types.c @@ -594,19 +594,19 @@ static struct tuner_params tuner_philips_pal_mk_params[] = { }, }; -/* ------------ TUNER_PHILIPS_ATSC - Philips ATSC ------------ */ +/* ---- TUNER_PHILIPS_ATSC - Philips FCV1236D (ATSC/NTSC) ---- */ -static struct tuner_range tuner_philips_atsc_ranges[] = { +static struct tuner_range tuner_philips_fcv1236d_ranges[] = { { 16 * 157.25 /*MHz*/, 0x8e, 0xa0, }, - { 16 * 454.00 /*MHz*/, 0x8e, 0x90, }, + { 16 * 451.25 /*MHz*/, 0x8e, 0x90, }, { 16 * 999.99 , 0x8e, 0x30, }, }; -static struct tuner_params tuner_philips_atsc_params[] = { +static struct tuner_params tuner_philips_fcv1236d_params[] = { { .type = TUNER_PARAM_TYPE_NTSC, - .ranges = tuner_philips_atsc_ranges, - .count = ARRAY_SIZE(tuner_philips_atsc_ranges), + .ranges = tuner_philips_fcv1236d_ranges, + .count = ARRAY_SIZE(tuner_philips_fcv1236d_ranges), }, }; @@ -1296,9 +1296,9 @@ struct tunertype tuners[] = { .count = ARRAY_SIZE(tuner_philips_pal_mk_params), }, [TUNER_PHILIPS_ATSC] = { /* Philips ATSC */ - .name = "Philips 1236D ATSC/NTSC dual in", - .params = tuner_philips_atsc_params, - .count = ARRAY_SIZE(tuner_philips_atsc_params), + .name = "Philips FCV1236D ATSC/NTSC dual in", + .params = tuner_philips_fcv1236d_params, + .count = ARRAY_SIZE(tuner_philips_fcv1236d_params), }, [TUNER_PHILIPS_FM1236_MK3] = { /* Philips NTSC */ .name = "Philips NTSC MK3 (FM1236MK3 or FM1236/F)", @@ -1463,6 +1463,10 @@ struct tunertype tuners[] = { .name = "Philips TDA988[5,6,7] IF PLL Demodulator", /* see tda9887.c for details */ }, + [TUNER_TEA5761] = { /* Philips RADIO */ + .name = "Philips TEA5761 FM Radio", + /* see tea5767.c for details */ + }, }; unsigned const int tuner_count = ARRAY_SIZE(tuners); diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c index c9bf9dbc2ea3..9da338dc4f3b 100644 --- a/drivers/media/video/tvaudio.c +++ b/drivers/media/video/tvaudio.c @@ -271,7 +271,7 @@ static int chip_thread(void *data) struct CHIPDESC *desc = chiplist + chip->type; v4l_dbg(1, debug, &chip->c, "%s: thread started\n", chip->c.name); - + set_freezable(); for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (!kthread_should_stop()) diff --git a/drivers/media/video/tveeprom.c b/drivers/media/video/tveeprom.c index a1136da74ba8..fdc3def437b1 100644 --- a/drivers/media/video/tveeprom.c +++ b/drivers/media/video/tveeprom.c @@ -183,7 +183,7 @@ hauppauge_tuner[] = { TUNER_ABSENT, "Silicon TDA8275C1 8290 FM"}, { TUNER_ABSENT, "Thompson DTT757"}, /* 80-89 */ - { TUNER_ABSENT, "Philips FQ1216LME MK3"}, + { TUNER_PHILIPS_FM1216ME_MK3, "Philips FQ1216LME MK3"}, { TUNER_LG_PAL_NEW_TAPC, "LG TAPC G701D"}, { TUNER_LG_NTSC_NEW_TAPC, "LG TAPC H791F"}, { TUNER_LG_PAL_NEW_TAPC, "TCL 2002MB 3"}, @@ -490,7 +490,7 @@ void tveeprom_hauppauge_analog(struct i2c_client *c, struct tveeprom *tvee, to indicate 4052 mux was removed in favor of using MSP inputs directly. */ audioic = eeprom_data[i+2] & 0x7f; - if (audioic < sizeof(audioIC)/sizeof(*audioIC)) + if (audioic < ARRAY_SIZE(audioIC)) tvee->audio_processor = audioIC[audioic].id; else tvee->audio_processor = AUDIO_CHIP_UNKNOWN; @@ -523,7 +523,7 @@ void tveeprom_hauppauge_analog(struct i2c_client *c, struct tveeprom *tvee, to indicate 4052 mux was removed in favor of using MSP inputs directly. */ audioic = eeprom_data[i+1] & 0x7f; - if (audioic < sizeof(audioIC)/sizeof(*audioIC)) + if (audioic < ARRAY_SIZE(audioIC)) tvee->audio_processor = audioIC[audioic].id; else tvee->audio_processor = AUDIO_CHIP_UNKNOWN; @@ -678,7 +678,7 @@ void tveeprom_hauppauge_analog(struct i2c_client *c, struct tveeprom *tvee, tveeprom_info("audio processor is unknown (no idx)\n"); tvee->audio_processor=AUDIO_CHIP_UNKNOWN; } else { - if (audioic < sizeof(audioIC)/sizeof(*audioIC)) + if (audioic < ARRAY_SIZE(audioIC)) tveeprom_info("audio processor is %s (idx %d)\n", audioIC[audioic].name,audioic); else diff --git a/drivers/media/video/tvp5150.c b/drivers/media/video/tvp5150.c index d5ec05f56adf..e2f1c972754b 100644 --- a/drivers/media/video/tvp5150.c +++ b/drivers/media/video/tvp5150.c @@ -1006,7 +1006,7 @@ static int tvp5150_command(struct i2c_client *c, { struct v4l2_control *ctrl = arg; u8 i, n; - n = sizeof(tvp5150_qctrl) / sizeof(tvp5150_qctrl[0]); + n = ARRAY_SIZE(tvp5150_qctrl); for (i = 0; i < n; i++) if (ctrl->id == tvp5150_qctrl[i].id) { if (ctrl->value < diff --git a/drivers/media/video/usbvideo/konicawc.c b/drivers/media/video/usbvideo/konicawc.c index abe214619092..491505d6fdee 100644 --- a/drivers/media/video/usbvideo/konicawc.c +++ b/drivers/media/video/usbvideo/konicawc.c @@ -236,7 +236,7 @@ static void konicawc_register_input(struct konicawc *cam, struct usb_device *dev input_dev->name = "Konicawc snapshot button"; input_dev->phys = cam->input_physname; usb_to_input_id(dev, &input_dev->id); - input_dev->cdev.dev = &dev->dev; + input_dev->dev.parent = &dev->dev; input_dev->evbit[0] = BIT(EV_KEY); input_dev->keybit[LONG(BTN_0)] = BIT(BTN_0); diff --git a/drivers/media/video/usbvideo/quickcam_messenger.c b/drivers/media/video/usbvideo/quickcam_messenger.c index ec0ff2247f06..dd1a6d6bbc9e 100644 --- a/drivers/media/video/usbvideo/quickcam_messenger.c +++ b/drivers/media/video/usbvideo/quickcam_messenger.c @@ -100,7 +100,7 @@ static void qcm_register_input(struct qcm *cam, struct usb_device *dev) input_dev->name = "QCM button"; input_dev->phys = cam->input_physname; usb_to_input_id(dev, &input_dev->id); - input_dev->cdev.dev = &dev->dev; + input_dev->dev.parent = &dev->dev; input_dev->evbit[0] = BIT(EV_KEY); input_dev->keybit[LONG(BTN_0)] = BIT(BTN_0); @@ -439,7 +439,7 @@ static int qcm_sensor_init(struct uvd *uvd) int ret; int i; - for (i=0; i < sizeof(regval_table)/sizeof(regval_table[0]) ; i++) { + for (i=0; i < ARRAY_SIZE(regval_table) ; i++) { CHECK_RET(ret, qcm_stv_setb(uvd->dev, regval_table[i].reg, regval_table[i].val)); diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c index 982b115193f8..ff555129c82f 100644 --- a/drivers/media/video/usbvideo/vicam.c +++ b/drivers/media/video/usbvideo/vicam.c @@ -42,7 +42,6 @@ #include <linux/usb.h> #include <linux/vmalloc.h> #include <linux/slab.h> -#include <linux/proc_fs.h> #include <linux/mutex.h> #include "usbvideo.h" @@ -417,11 +416,6 @@ struct vicam_camera { u8 open_count; u8 bulkEndpoint; int needsDummyRead; - -#if defined(CONFIG_VIDEO_PROC_FS) - struct proc_dir_entry *proc_dir; -#endif - }; static int vicam_probe( struct usb_interface *intf, const struct usb_device_id *id); @@ -1065,175 +1059,6 @@ vicam_mmap(struct file *file, struct vm_area_struct *vma) return 0; } -#if defined(CONFIG_VIDEO_PROC_FS) - -static struct proc_dir_entry *vicam_proc_root = NULL; - -static int vicam_read_helper(char *page, char **start, off_t off, - int count, int *eof, int value) -{ - char *out = page; - int len; - - out += sprintf(out, "%d",value); - - len = out - page; - len -= off; - if (len < count) { - *eof = 1; - if (len <= 0) - return 0; - } else - len = count; - - *start = page + off; - return len; -} - -static int vicam_read_proc_shutter(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - return vicam_read_helper(page,start,off,count,eof, - ((struct vicam_camera *)data)->shutter_speed); -} - -static int vicam_read_proc_gain(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - return vicam_read_helper(page,start,off,count,eof, - ((struct vicam_camera *)data)->gain); -} - -static int -vicam_write_proc_shutter(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - u16 stmp; - char kbuf[8]; - struct vicam_camera *cam = (struct vicam_camera *) data; - - if (count > 6) - return -EINVAL; - - if (copy_from_user(kbuf, buffer, count)) - return -EFAULT; - - stmp = (u16) simple_strtoul(kbuf, NULL, 10); - if (stmp < 4 || stmp > 32000) - return -EINVAL; - - cam->shutter_speed = stmp; - - return count; -} - -static int -vicam_write_proc_gain(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - u16 gtmp; - char kbuf[8]; - - struct vicam_camera *cam = (struct vicam_camera *) data; - - if (count > 4) - return -EINVAL; - - if (copy_from_user(kbuf, buffer, count)) - return -EFAULT; - - gtmp = (u16) simple_strtoul(kbuf, NULL, 10); - if (gtmp > 255) - return -EINVAL; - cam->gain = gtmp; - - return count; -} - -static void -vicam_create_proc_root(void) -{ - vicam_proc_root = proc_mkdir("video/vicam", NULL); - - if (vicam_proc_root) - vicam_proc_root->owner = THIS_MODULE; - else - printk(KERN_ERR - "could not create /proc entry for vicam!"); -} - -static void -vicam_destroy_proc_root(void) -{ - if (vicam_proc_root) - remove_proc_entry("video/vicam", 0); -} - -static void -vicam_create_proc_entry(struct vicam_camera *cam) -{ - char name[64]; - struct proc_dir_entry *ent; - - DBG(KERN_INFO "vicam: creating proc entry\n"); - - if (!vicam_proc_root || !cam) { - printk(KERN_INFO - "vicam: could not create proc entry, %s pointer is null.\n", - (!cam ? "camera" : "root")); - return; - } - - sprintf(name, "video%d", cam->vdev.minor); - - cam->proc_dir = proc_mkdir(name, vicam_proc_root); - - if ( !cam->proc_dir ) - return; // FIXME: We should probably return an error here - - ent = create_proc_entry("shutter", S_IFREG | S_IRUGO | S_IWUSR, - cam->proc_dir); - if (ent) { - ent->data = cam; - ent->read_proc = vicam_read_proc_shutter; - ent->write_proc = vicam_write_proc_shutter; - ent->size = 64; - } - - ent = create_proc_entry("gain", S_IFREG | S_IRUGO | S_IWUSR, - cam->proc_dir); - if (ent) { - ent->data = cam; - ent->read_proc = vicam_read_proc_gain; - ent->write_proc = vicam_write_proc_gain; - ent->size = 64; - } -} - -static void -vicam_destroy_proc_entry(void *ptr) -{ - struct vicam_camera *cam = (struct vicam_camera *) ptr; - char name[16]; - - if ( !cam->proc_dir ) - return; - - sprintf(name, "video%d", cam->vdev.minor); - remove_proc_entry("shutter", cam->proc_dir); - remove_proc_entry("gain", cam->proc_dir); - remove_proc_entry(name,vicam_proc_root); - cam->proc_dir = NULL; - -} - -#else -static inline void vicam_create_proc_root(void) { } -static inline void vicam_destroy_proc_root(void) { } -static inline void vicam_create_proc_entry(struct vicam_camera *cam) { } -static inline void vicam_destroy_proc_entry(void *ptr) { } -#endif - static const struct file_operations vicam_fops = { .owner = THIS_MODULE, .open = vicam_open, @@ -1305,13 +1130,12 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id) } if ((cam = - kmalloc(sizeof (struct vicam_camera), GFP_KERNEL)) == NULL) { + kzalloc(sizeof (struct vicam_camera), GFP_KERNEL)) == NULL) { printk(KERN_WARNING "could not allocate kernel memory for vicam_camera struct\n"); return -ENOMEM; } - memset(cam, 0, sizeof (struct vicam_camera)); cam->shutter_speed = 15; @@ -1330,8 +1154,6 @@ vicam_probe( struct usb_interface *intf, const struct usb_device_id *id) return -EIO; } - vicam_create_proc_entry(cam); - printk(KERN_INFO "ViCam webcam driver now controlling video device %d\n",cam->vdev.minor); usb_set_intfdata (intf, cam); @@ -1363,8 +1185,6 @@ vicam_disconnect(struct usb_interface *intf) cam->udev = NULL; - vicam_destroy_proc_entry(cam); - /* the only thing left to do is synchronize with * our close/release function on who should release * the camera memory. if there are any users using the @@ -1390,7 +1210,6 @@ usb_vicam_init(void) { int retval; DBG(KERN_INFO "ViCam-based WebCam driver startup\n"); - vicam_create_proc_root(); retval = usb_register(&vicam_driver); if (retval) printk(KERN_WARNING "usb_register failed!\n"); @@ -1404,7 +1223,6 @@ usb_vicam_exit(void) "ViCam-based WebCam driver shutdown\n"); usb_deregister(&vicam_driver); - vicam_destroy_proc_root(); } module_init(usb_vicam_init); diff --git a/drivers/media/video/usbvision/usbvision-cards.c b/drivers/media/video/usbvision/usbvision-cards.c index 51ab265d566a..380564cd3317 100644 --- a/drivers/media/video/usbvision/usbvision-cards.c +++ b/drivers/media/video/usbvision/usbvision-cards.c @@ -79,7 +79,7 @@ struct usbvision_device_data_st usbvision_device_data[] = { .Interface = -1, .Codec = CODEC_SAA7113, .VideoChannels = 2, - .VideoNorm = V4L2_STD_PAL, + .VideoNorm = V4L2_STD_NTSC, .AudioChannels = 1, .Radio = 0, .vbi = 1, @@ -311,8 +311,8 @@ struct usbvision_device_data_st usbvision_device_data[] = { .vbi = 1, .Tuner = 1, .TunerType = TUNER_PHILIPS_SECAM, - .X_Offset = -1, - .Y_Offset = -1, + .X_Offset = 0x80, + .Y_Offset = 0x16, .ModelString = "Hauppauge WinTV USB (PAL/SECAM L)", }, [HPG_WINTV_PAL_D_K] = { @@ -586,7 +586,7 @@ struct usbvision_device_data_st usbvision_device_data[] = { .Radio = 0, .vbi = 1, .Tuner = 1, - .TunerType = TUNER_PHILIPS_PAL, + .TunerType = TUNER_LG_PAL_NEW_TAPC, .X_Offset = 0, .Y_Offset = 3, .Dvi_yuv_override = 1, diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c index 7df071eb0a3b..5b1e346df206 100644 --- a/drivers/media/video/usbvision/usbvision-core.c +++ b/drivers/media/video/usbvision/usbvision-core.c @@ -1742,7 +1742,7 @@ static int usbvision_set_video_format(struct usb_usbvision *usbvision, int forma format = ISOC_MODE_YUV420; } value[0] = 0x0A; //TODO: See the effect of the filter - value[1] = format; + value[1] = format; // Sets the VO_MODE register which follows FILT_CONT rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), USBVISION_OP_CODE, USB_DIR_OUT | USB_TYPE_VENDOR | @@ -1831,10 +1831,10 @@ int usbvision_set_output(struct usb_usbvision *usbvision, int width, frameRate = FRAMERATE_MAX; } - if (usbvision->tvnorm->id & V4L2_STD_625_50) { + if (usbvision->tvnormId & V4L2_STD_625_50) { frameDrop = frameRate * 32 / 25 - 1; } - else if (usbvision->tvnorm->id & V4L2_STD_525_60) { + else if (usbvision->tvnormId & V4L2_STD_525_60) { frameDrop = frameRate * 32 / 30 - 1; } @@ -2067,7 +2067,7 @@ int usbvision_set_input(struct usb_usbvision *usbvision) } - if (usbvision->tvnorm->id & V4L2_STD_PAL) { + if (usbvision->tvnormId & V4L2_STD_PAL) { value[0] = 0xC0; value[1] = 0x02; //0x02C0 -> 704 Input video line length value[2] = 0x20; @@ -2076,7 +2076,7 @@ int usbvision_set_input(struct usb_usbvision *usbvision) value[5] = 0x00; //0x0060 -> 96 Input video h offset value[6] = 0x16; value[7] = 0x00; //0x0016 -> 22 Input video v offset - } else if (usbvision->tvnorm->id & V4L2_STD_SECAM) { + } else if (usbvision->tvnormId & V4L2_STD_SECAM) { value[0] = 0xC0; value[1] = 0x02; //0x02C0 -> 704 Input video line length value[2] = 0x20; @@ -2537,7 +2537,9 @@ void usbvision_stop_isoc(struct usb_usbvision *usbvision) int usbvision_muxsel(struct usb_usbvision *usbvision, int channel) { - int mode[4]; + /* inputs #0 and #3 are constant for every SAA711x. */ + /* inputs #1 and #2 are variable for SAA7111 and SAA7113 */ + int mode[4]= {SAA7115_COMPOSITE0, 0, 0, SAA7115_COMPOSITE3}; int audio[]= {1, 0, 0, 0}; struct v4l2_routing route; //channel 0 is TV with audiochannel 1 (tuner mono) @@ -2547,10 +2549,6 @@ int usbvision_muxsel(struct usb_usbvision *usbvision, int channel) RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs); usbvision->ctl_input = channel; - route.input = SAA7115_COMPOSITE1; - route.output = 0; - call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route); - call_i2c_clients(usbvision, VIDIOC_S_INPUT, &usbvision->ctl_input); // set the new channel // Regular USB TV Tuners -> channel: 0 = Television, 1 = Composite, 2 = S-Video @@ -2558,28 +2556,27 @@ int usbvision_muxsel(struct usb_usbvision *usbvision, int channel) switch (usbvision_device_data[usbvision->DevModel].Codec) { case CODEC_SAA7113: - if (SwitchSVideoInput) { // To handle problems with S-Video Input for some devices. Use SwitchSVideoInput parameter when loading the module. - mode[2] = 1; + mode[1] = SAA7115_COMPOSITE2; + if (SwitchSVideoInput) { + /* To handle problems with S-Video Input for + * some devices. Use SwitchSVideoInput + * parameter when loading the module.*/ + mode[2] = SAA7115_COMPOSITE1; } else { - mode[2] = 7; - } - if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { - mode[0] = 0; mode[1] = 2; mode[3] = 3; // Special for four input devices - } - else { - mode[0] = 0; mode[1] = 2; //modes for regular saa7113 devices + mode[2] = SAA7115_SVIDEO1; } break; case CODEC_SAA7111: - mode[0] = 0; mode[1] = 1; mode[2] = 7; //modes for saa7111 - break; default: - mode[0] = 0; mode[1] = 1; mode[2] = 7; //default modes + /* modes for saa7111 */ + mode[1] = SAA7115_COMPOSITE1; + mode[2] = SAA7115_SVIDEO1; + break; } route.input = mode[channel]; + route.output = 0; call_i2c_clients(usbvision, VIDIOC_INT_S_VIDEO_ROUTING,&route); - usbvision->channel = channel; usbvision_set_audio(usbvision, audio[channel]); return 0; } diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index aa3258bbb4af..868b6886fe7f 100644 --- a/drivers/media/video/usbvision/usbvision-video.c +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -36,7 +36,8 @@ * - use submit_urb for all setup packets * - Fix memory settings for nt1004. It is 4 times as big as the * nt1003 memory. - * - Add audio on endpoint 3 for nt1004 chip. Seems impossible, needs a codec interface. Which one? + * - Add audio on endpoint 3 for nt1004 chip. + * Seems impossible, needs a codec interface. Which one? * - Clean up the driver. * - optimization for performance. * - Add Videotext capability (VBI). Working on it..... @@ -77,7 +78,8 @@ #include "usbvision.h" #include "usbvision-cards.h" -#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>" +#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\ + Dwaine Garden <DwaineGarden@rogers.com>" #define DRIVER_NAME "usbvision" #define DRIVER_ALIAS "USBVision" #define DRIVER_DESC "USBVision USB Video Device Driver for Linux" @@ -85,20 +87,25 @@ #define USBVISION_DRIVER_VERSION_MAJOR 0 #define USBVISION_DRIVER_VERSION_MINOR 9 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9 -#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL) -#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) +#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\ +USBVISION_DRIVER_VERSION_MINOR,\ +USBVISION_DRIVER_VERSION_PATCHLEVEL) +#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\ + "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\ + "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) #define ENABLE_HEXDUMP 0 /* Enable if you need it */ #ifdef USBVISION_DEBUG #define PDEBUG(level, fmt, args...) \ - if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args) + if (video_debug & (level)) \ + info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ ,\ + ## args) #else #define PDEBUG(level, fmt, args...) do {} while(0) #endif -#define DBG_IOCTL 1<<0 #define DBG_IO 1<<1 #define DBG_PROBE 1<<2 #define DBG_MMAP 1<<3 @@ -108,7 +115,8 @@ #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++; -static int usbvision_nr = 0; // sequential number of usbvision device +/* sequential number of usbvision device */ +static int usbvision_nr = 0; static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, @@ -121,55 +129,32 @@ static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } }; -/* supported tv norms */ -static struct usbvision_tvnorm tvnorms[] = { - { - .name = "PAL", - .id = V4L2_STD_PAL, - }, { - .name = "NTSC", - .id = V4L2_STD_NTSC, - }, { - .name = "SECAM", - .id = V4L2_STD_SECAM, - }, { - .name = "PAL-M", - .id = V4L2_STD_PAL_M, - } -}; - -#define TVNORMS ARRAY_SIZE(tvnorms) - -// Function prototypes +/* Function prototypes */ static void usbvision_release(struct usb_usbvision *usbvision); -// Default initalization of device driver parameters -static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint -static int video_debug = 0; // Set the default Debug Mode of the device driver -static int PowerOnAtOpen = 1; // Set the default device to power on at startup -static int video_nr = -1; // Sequential Number of Video Device -static int radio_nr = -1; // Sequential Number of Radio Device -static int vbi_nr = -1; // Sequential Number of VBI Device - -// Grab parameters for the device driver - -#if defined(module_param) // Showing parameters under SYSFS +/* Default initalization of device driver parameters */ +/* Set the default format for ISOC endpoint */ +static int isocMode = ISOC_MODE_COMPRESS; +/* Set the default Debug Mode of the device driver */ +static int video_debug = 0; +/* Set the default device to power on at startup */ +static int PowerOnAtOpen = 1; +/* Sequential Number of Video Device */ +static int video_nr = -1; +/* Sequential Number of Radio Device */ +static int radio_nr = -1; +/* Sequential Number of VBI Device */ +static int vbi_nr = -1; + +/* Grab parameters for the device driver */ + +/* Showing parameters under SYSFS */ module_param(isocMode, int, 0444); module_param(video_debug, int, 0444); module_param(PowerOnAtOpen, int, 0444); module_param(video_nr, int, 0444); module_param(radio_nr, int, 0444); module_param(vbi_nr, int, 0444); -#else // Old Style -MODULE_PARAM(isocMode, "i"); -MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver -MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive -MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup -MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently. -MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...) -MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...) -MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...) -#endif MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); @@ -187,19 +172,21 @@ MODULE_VERSION(USBVISION_VERSION_STRING); MODULE_ALIAS(DRIVER_ALIAS); -/****************************************************************************************/ -/* SYSFS Code - Copied from the stv680.c usb module. */ -/* Device information is located at /sys/class/video4linux/video0 */ -/* Device parameters information is located at /sys/module/usbvision */ -/* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */ -/****************************************************************************************/ +/*****************************************************************************/ +/* SYSFS Code - Copied from the stv680.c usb module. */ +/* Device information is located at /sys/class/video4linux/video0 */ +/* Device parameters information is located at /sys/module/usbvision */ +/* Device USB Information is located at */ +/* /sys/bus/usb/drivers/USBVision Video Grabber */ +/*****************************************************************************/ #define YES_NO(x) ((x) ? "Yes" : "No") static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); return video_get_drvdata(vdev); } @@ -211,15 +198,18 @@ static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL); static ssize_t show_model(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); - return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString); + return sprintf(buf, "%s\n", + usbvision_device_data[usbvision->DevModel].ModelString); } static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); static ssize_t show_hue(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_HUE; @@ -232,7 +222,8 @@ static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); static ssize_t show_contrast(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_CONTRAST; @@ -245,7 +236,8 @@ static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); static ssize_t show_brightness(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_BRIGHTNESS; @@ -258,7 +250,8 @@ static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); static ssize_t show_saturation(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); struct v4l2_control ctrl; ctrl.id = V4L2_CID_SATURATION; @@ -271,23 +264,28 @@ static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); static ssize_t show_streaming(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); - return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0)); + return sprintf(buf, "%s\n", + YES_NO(usbvision->streaming==Stream_On?1:0)); } static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); static ssize_t show_compression(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); - return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); + return sprintf(buf, "%s\n", + YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); } static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); static ssize_t show_device_bridge(struct class_device *cd, char *buf) { - struct video_device *vdev = container_of(cd, struct video_device, class_dev); + struct video_device *vdev = + container_of(cd, struct video_device, class_dev); struct usb_usbvision *usbvision = video_get_drvdata(vdev); return sprintf(buf, "%d\n", usbvision->bridgeType); } @@ -376,7 +374,8 @@ static void usbvision_remove_sysfs(struct video_device *vdev) static int usbvision_v4l2_open(struct inode *inode, struct file *file) { struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); int errCode = 0; PDEBUG(DBG_IO, "open"); @@ -390,7 +389,8 @@ static int usbvision_v4l2_open(struct inode *inode, struct file *file) /* Allocate memory for the scratch ring buffer */ errCode = usbvision_scratch_alloc(usbvision); if (isocMode==ISOC_MODE_COMPRESS) { - /* Allocate intermediate decompression buffers only if needed */ + /* Allocate intermediate decompression buffers + only if needed */ errCode = usbvision_decompress_alloc(usbvision); } if (errCode) { @@ -421,11 +421,10 @@ static int usbvision_v4l2_open(struct inode *inode, struct file *file) if (!errCode) { usbvision_begin_streaming(usbvision); errCode = usbvision_init_isoc(usbvision); - /* device needs to be initialized before isoc transfer */ + /* device must be initialized before isoc transfer */ usbvision_muxsel(usbvision,0); usbvision->user++; - } - else { + } else { if (PowerOnAtOpen) { usbvision_i2c_unregister(usbvision); usbvision_power_off(usbvision); @@ -456,7 +455,8 @@ static int usbvision_v4l2_open(struct inode *inode, struct file *file) static int usbvision_v4l2_close(struct inode *inode, struct file *file) { struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); PDEBUG(DBG_IO, "close"); down(&usbvision->lock); @@ -473,7 +473,8 @@ static int usbvision_v4l2_close(struct inode *inode, struct file *file) usbvision->user--; if (PowerOnAtOpen) { - /* power off in a little while to avoid off/on every close/open short sequences */ + /* power off in a little while + to avoid off/on every close/open short sequences */ usbvision_set_powerOffTimer(usbvision); usbvision->initialized = 0; } @@ -498,583 +499,612 @@ static int usbvision_v4l2_close(struct inode *inode, struct file *file) * This is part of Video 4 Linux API. The procedure handles ioctl() calls. * */ -static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, void *arg) +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int vidioc_g_register (struct file *file, void *priv, + struct v4l2_register *reg) { struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); - - if (!USBVISION_IS_OPERATIONAL(usbvision)) - return -EFAULT; + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int errCode; - switch (cmd) { + if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return -EINVAL; + /* NT100x has a 8-bit register space */ + errCode = usbvision_read_reg(usbvision, reg->reg&0xff); + if (errCode < 0) { + err("%s: VIDIOC_DBG_G_REGISTER failed: error %d", + __FUNCTION__, errCode); + return errCode; + } + return 0; +} -#ifdef CONFIG_VIDEO_ADV_DEBUG - /* ioctls to allow direct acces to the NT100x registers */ - case VIDIOC_DBG_G_REGISTER: - case VIDIOC_DBG_S_REGISTER: - { - struct v4l2_register *reg = arg; - int errCode; - - if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) - return -EINVAL; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - /* NT100x has a 8-bit register space */ - if (cmd == VIDIOC_DBG_G_REGISTER) - errCode = usbvision_read_reg(usbvision, reg->reg&0xff); - else - errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); - if (errCode < 0) { - err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__, - cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode); - return errCode; - } - if (cmd == VIDIOC_DBG_S_REGISTER) - reg->val = (u8)errCode; +static int vidioc_s_register (struct file *file, void *priv, + struct v4l2_register *reg) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int errCode; - PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X", - cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', - (unsigned int)reg->reg, (unsigned int)reg->val); - return 0; - } + if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return -EINVAL; + /* NT100x has a 8-bit register space */ + reg->val = (u8)usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); + if (reg->val < 0) { + err("%s: VIDIOC_DBG_S_REGISTER failed: error %d", + __FUNCTION__, errCode); + return errCode; + } + return 0; +} #endif - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *vc=arg; - - memset(vc, 0, sizeof(*vc)); - strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); - strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, - sizeof(vc->card)); - strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, - sizeof(vc->bus_info)); - vc->version = USBVISION_DRIVER_VERSION; - vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_AUDIO | - V4L2_CAP_READWRITE | - V4L2_CAP_STREAMING | - (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); - PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP"); - return 0; - } - case VIDIOC_ENUMINPUT: - { - struct v4l2_input *vi = arg; - int chan; - - if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) - return -EINVAL; - if (usbvision->have_tuner) { - chan = vi->index; - } - else { - chan = vi->index + 1; //skip Television string - } - switch(chan) { - case 0: - if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { - strcpy(vi->name, "White Video Input"); - } - else { - strcpy(vi->name, "Television"); - vi->type = V4L2_INPUT_TYPE_TUNER; - vi->audioset = 1; - vi->tuner = chan; - vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM; - } - break; - case 1: - vi->type = V4L2_INPUT_TYPE_CAMERA; - if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { - strcpy(vi->name, "Green Video Input"); - } - else { - strcpy(vi->name, "Composite Video Input"); - } - vi->std = V4L2_STD_PAL; - break; - case 2: - vi->type = V4L2_INPUT_TYPE_CAMERA; - if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { - strcpy(vi->name, "Yellow Video Input"); - } - else { - strcpy(vi->name, "S-Video Input"); - } - vi->std = V4L2_STD_PAL; - break; - case 3: - vi->type = V4L2_INPUT_TYPE_CAMERA; - strcpy(vi->name, "Red Video Input"); - vi->std = V4L2_STD_PAL; - break; - } - PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", - vi->name, vi->index, vi->tuner,vi->type,(int)vi->std); - return 0; - } - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *e = arg; - unsigned int i; - int ret; - - i = e->index; - if (i >= TVNORMS) - return -EINVAL; - ret = v4l2_video_std_construct(e, tvnorms[e->index].id, - tvnorms[e->index].name); - e->index = i; - if (ret < 0) - return ret; - return 0; + +static int vidioc_querycap (struct file *file, void *priv, + struct v4l2_capability *vc) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + + strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); + strlcpy(vc->card, + usbvision_device_data[usbvision->DevModel].ModelString, + sizeof(vc->card)); + strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, + sizeof(vc->bus_info)); + vc->version = USBVISION_DRIVER_VERSION; + vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_AUDIO | + V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING | + (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); + return 0; +} + +static int vidioc_enum_input (struct file *file, void *priv, + struct v4l2_input *vi) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int chan; + + if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) + return -EINVAL; + if (usbvision->have_tuner) { + chan = vi->index; + } else { + chan = vi->index + 1; /*skip Television string*/ + } + /* Determine the requested input characteristics + specific for each usbvision card model */ + switch(chan) { + case 0: + if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { + strcpy(vi->name, "White Video Input"); + } else { + strcpy(vi->name, "Television"); + vi->type = V4L2_INPUT_TYPE_TUNER; + vi->audioset = 1; + vi->tuner = chan; + vi->std = USBVISION_NORMS; } - case VIDIOC_G_INPUT: - { - int *input = arg; - *input = usbvision->ctl_input; - return 0; + break; + case 1: + vi->type = V4L2_INPUT_TYPE_CAMERA; + if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { + strcpy(vi->name, "Green Video Input"); + } else { + strcpy(vi->name, "Composite Video Input"); } - case VIDIOC_S_INPUT: - { - int *input = arg; - if ((*input >= usbvision->video_inputs) || (*input < 0) ) - return -EINVAL; - usbvision->ctl_input = *input; - - down(&usbvision->lock); - usbvision_muxsel(usbvision, usbvision->ctl_input); - usbvision_set_input(usbvision); - usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight); - up(&usbvision->lock); - return 0; + vi->std = V4L2_STD_PAL; + break; + case 2: + vi->type = V4L2_INPUT_TYPE_CAMERA; + if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { + strcpy(vi->name, "Yellow Video Input"); + } else { + strcpy(vi->name, "S-Video Input"); } - case VIDIOC_G_STD: - { - v4l2_std_id *id = arg; + vi->std = V4L2_STD_PAL; + break; + case 3: + vi->type = V4L2_INPUT_TYPE_CAMERA; + strcpy(vi->name, "Red Video Input"); + vi->std = V4L2_STD_PAL; + break; + } + return 0; +} - *id = usbvision->tvnorm->id; +static int vidioc_g_input (struct file *file, void *priv, unsigned int *input) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); - PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name); - return 0; - } - case VIDIOC_S_STD: - { - v4l2_std_id *id = arg; - unsigned int i; - - for (i = 0; i < TVNORMS; i++) - if (*id == tvnorms[i].id) - break; - if (i == TVNORMS) - for (i = 0; i < TVNORMS; i++) - if (*id & tvnorms[i].id) - break; - if (i == TVNORMS) - return -EINVAL; - - down(&usbvision->lock); - usbvision->tvnorm = &tvnorms[i]; - - call_i2c_clients(usbvision, VIDIOC_S_STD, - &usbvision->tvnorm->id); + *input = usbvision->ctl_input; + return 0; +} - up(&usbvision->lock); +static int vidioc_s_input (struct file *file, void *priv, unsigned int input) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); - PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name); - return 0; - } - case VIDIOC_G_TUNER: - { - struct v4l2_tuner *vt = arg; - - if (!usbvision->have_tuner || vt->index) // Only tuner 0 - return -EINVAL; - strcpy(vt->name, "Television"); - /* Let clients fill in the remainder of this struct */ - call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); - - PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc); - return 0; - } - case VIDIOC_S_TUNER: - { - struct v4l2_tuner *vt = arg; - - // Only no or one tuner for now - if (!usbvision->have_tuner || vt->index) - return -EINVAL; - /* let clients handle this */ - call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); - - PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER"); - return 0; - } - case VIDIOC_G_FREQUENCY: - { - struct v4l2_frequency *freq = arg; - - freq->tuner = 0; // Only one tuner - freq->type = V4L2_TUNER_ANALOG_TV; - freq->frequency = usbvision->freq; - PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency); - return 0; - } - case VIDIOC_S_FREQUENCY: - { - struct v4l2_frequency *freq = arg; - - // Only no or one tuner for now - if (!usbvision->have_tuner || freq->tuner) - return -EINVAL; - - usbvision->freq = freq->frequency; - call_i2c_clients(usbvision, cmd, freq); - PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency); - return 0; - } - case VIDIOC_G_AUDIO: - { - struct v4l2_audio *v = arg; - memset(v,0, sizeof(v)); - strcpy(v->name, "TV"); - PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO"); - return 0; - } - case VIDIOC_S_AUDIO: - { - struct v4l2_audio *v = arg; - if(v->index) { - return -EINVAL; - } - PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO"); - return 0; - } - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *ctrl = arg; - int id=ctrl->id; + if ((input >= usbvision->video_inputs) || (input < 0) ) + return -EINVAL; - memset(ctrl,0,sizeof(*ctrl)); - ctrl->id=id; + down(&usbvision->lock); + usbvision_muxsel(usbvision, input); + usbvision_set_input(usbvision); + usbvision_set_output(usbvision, + usbvision->curwidth, + usbvision->curheight); + up(&usbvision->lock); + return 0; +} - call_i2c_clients(usbvision, cmd, arg); +static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + usbvision->tvnormId=*id; - if (ctrl->type) - return 0; - else - return -EINVAL; + down(&usbvision->lock); + call_i2c_clients(usbvision, VIDIOC_S_STD, + &usbvision->tvnormId); + up(&usbvision->lock); + /* propagate the change to the decoder */ + usbvision_muxsel(usbvision, usbvision->ctl_input); - PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); - } - case VIDIOC_G_CTRL: - { - struct v4l2_control *ctrl = arg; - call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); - PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); - return 0; - } - case VIDIOC_S_CTRL: - { - struct v4l2_control *ctrl = arg; + return 0; +} - PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); - call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); - return 0; - } - case VIDIOC_REQBUFS: - { - struct v4l2_requestbuffers *vr = arg; - int ret; +static int vidioc_g_tuner (struct file *file, void *priv, + struct v4l2_tuner *vt) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); - RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); + if (!usbvision->have_tuner || vt->index) // Only tuner 0 + return -EINVAL; + if(usbvision->radio) { + strcpy(vt->name, "Radio"); + vt->type = V4L2_TUNER_RADIO; + } else { + strcpy(vt->name, "Television"); + } + /* Let clients fill in the remainder of this struct */ + call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); - // Check input validity : the user must do a VIDEO CAPTURE and MMAP method. - if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || - (vr->memory != V4L2_MEMORY_MMAP)) - return -EINVAL; + return 0; +} - if(usbvision->streaming == Stream_On) { - if ((ret = usbvision_stream_interrupt(usbvision))) - return ret; - } +static int vidioc_s_tuner (struct file *file, void *priv, + struct v4l2_tuner *vt) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); - usbvision_frames_free(usbvision); - usbvision_empty_framequeues(usbvision); - vr->count = usbvision_frames_alloc(usbvision,vr->count); + // Only no or one tuner for now + if (!usbvision->have_tuner || vt->index) + return -EINVAL; + /* let clients handle this */ + call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); - usbvision->curFrame = NULL; + return 0; +} - PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count); - return 0; - } - case VIDIOC_QUERYBUF: - { - struct v4l2_buffer *vb = arg; - struct usbvision_frame *frame; +static int vidioc_g_frequency (struct file *file, void *priv, + struct v4l2_frequency *freq) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); - // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called) + freq->tuner = 0; // Only one tuner + if(usbvision->radio) { + freq->type = V4L2_TUNER_RADIO; + } else { + freq->type = V4L2_TUNER_ANALOG_TV; + } + freq->frequency = usbvision->freq; - if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { - return -EINVAL; - } - if(vb->index>=usbvision->num_frames) { - return -EINVAL; - } - // Updating the corresponding frame state - vb->flags = 0; - frame = &usbvision->frame[vb->index]; - if(frame->grabstate >= FrameState_Ready) - vb->flags |= V4L2_BUF_FLAG_QUEUED; - if(frame->grabstate >= FrameState_Done) - vb->flags |= V4L2_BUF_FLAG_DONE; - if(frame->grabstate == FrameState_Unused) - vb->flags |= V4L2_BUF_FLAG_MAPPED; - vb->memory = V4L2_MEMORY_MMAP; - - vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); - - vb->memory = V4L2_MEMORY_MMAP; - vb->field = V4L2_FIELD_NONE; - vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel; - vb->timestamp = usbvision->frame[vb->index].timestamp; - vb->sequence = usbvision->frame[vb->index].sequence; - return 0; - } - case VIDIOC_QBUF: - { - struct v4l2_buffer *vb = arg; - struct usbvision_frame *frame; - unsigned long lock_flags; - - // FIXME : works only on VIDEO_CAPTURE MODE, MMAP. - if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { - return -EINVAL; - } - if(vb->index>=usbvision->num_frames) { - return -EINVAL; - } + return 0; +} - frame = &usbvision->frame[vb->index]; +static int vidioc_s_frequency (struct file *file, void *priv, + struct v4l2_frequency *freq) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); - if (frame->grabstate != FrameState_Unused) { - return -EAGAIN; - } + // Only no or one tuner for now + if (!usbvision->have_tuner || freq->tuner) + return -EINVAL; - /* Mark it as ready and enqueue frame */ - frame->grabstate = FrameState_Ready; - frame->scanstate = ScanState_Scanning; - frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ + usbvision->freq = freq->frequency; + call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq); - vb->flags &= ~V4L2_BUF_FLAG_DONE; + return 0; +} - /* set v4l2_format index */ - frame->v4l2_format = usbvision->palette; +static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); - spin_lock_irqsave(&usbvision->queue_lock, lock_flags); - list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); - spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); + memset(a,0,sizeof(*a)); + if(usbvision->radio) { + strcpy(a->name,"Radio"); + } else { + strcpy(a->name, "TV"); + } - PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index); - return 0; - } - case VIDIOC_DQBUF: - { - struct v4l2_buffer *vb = arg; - int ret; - struct usbvision_frame *f; - unsigned long lock_flags; - - if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - if (list_empty(&(usbvision->outqueue))) { - if (usbvision->streaming == Stream_Idle) - return -EINVAL; - ret = wait_event_interruptible - (usbvision->wait_frame, - !list_empty(&(usbvision->outqueue))); - if (ret) - return ret; - } + return 0; +} - spin_lock_irqsave(&usbvision->queue_lock, lock_flags); - f = list_entry(usbvision->outqueue.next, - struct usbvision_frame, frame); - list_del(usbvision->outqueue.next); - spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); - - f->grabstate = FrameState_Unused; - - vb->memory = V4L2_MEMORY_MMAP; - vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE; - vb->index = f->index; - vb->sequence = f->sequence; - vb->timestamp = f->timestamp; - vb->field = V4L2_FIELD_NONE; - vb->bytesused = f->scanlength; - - return 0; - } - case VIDIOC_STREAMON: - { - int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; +static int vidioc_s_audio (struct file *file, void *fh, + struct v4l2_audio *a) +{ + if(a->index) { + return -EINVAL; + } - usbvision->streaming = Stream_On; + return 0; +} - call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); +static int vidioc_queryctrl (struct file *file, void *priv, + struct v4l2_queryctrl *ctrl) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int id=ctrl->id; - PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON"); + memset(ctrl,0,sizeof(*ctrl)); + ctrl->id=id; - return 0; - } - case VIDIOC_STREAMOFF: - { - int *type = arg; - int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; - - if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - if(usbvision->streaming == Stream_On) { - usbvision_stream_interrupt(usbvision); - // Stop all video streamings - call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); - } - usbvision_empty_framequeues(usbvision); + call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl); - PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF"); - return 0; - } - case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *vfd = arg; + if (!ctrl->type) + return -EINVAL; - if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { - return -EINVAL; - } - vfd->flags = 0; - vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); - vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; - memset(vfd->reserved, 0, sizeof(vfd->reserved)); - return 0; - } - case VIDIOC_G_FMT: - { - struct v4l2_format *vf = arg; - - switch (vf->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - { - vf->fmt.pix.width = usbvision->curwidth; - vf->fmt.pix.height = usbvision->curheight; - vf->fmt.pix.pixelformat = usbvision->palette.format; - vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel; - vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; - vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; - vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ - PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s", - vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); - return 0; - } - default: - PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type); - return -EINVAL; - } - return 0; - } - case VIDIOC_TRY_FMT: - case VIDIOC_S_FMT: - { - struct v4l2_format *vf = arg; - int formatIdx,ret; - - switch(vf->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - { - /* Find requested format in available ones */ - for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { - if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) { - usbvision->palette = usbvision_v4l2_format[formatIdx]; - break; - } - } - /* robustness */ - if(formatIdx == USBVISION_SUPPORTED_PALETTES) { - return -EINVAL; - } - RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); - RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); - - vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel; - vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; - - if(cmd == VIDIOC_TRY_FMT) { - PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s", - vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); - return 0; - } - - /* stop io in case it is already in progress */ - if(usbvision->streaming == Stream_On) { - if ((ret = usbvision_stream_interrupt(usbvision))) - return ret; - } - usbvision_frames_free(usbvision); - usbvision_empty_framequeues(usbvision); - - usbvision->curFrame = NULL; - - // by now we are committed to the new data... - down(&usbvision->lock); - usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); - up(&usbvision->lock); - - PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s", - vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); - return 0; - } - default: - return -EINVAL; - } - } - default: - return -ENOIOCTLCMD; + return 0; +} + +static int vidioc_g_ctrl (struct file *file, void *priv, + struct v4l2_control *ctrl) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); + + return 0; +} + +static int vidioc_s_ctrl (struct file *file, void *priv, + struct v4l2_control *ctrl) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); + + return 0; +} + +static int vidioc_reqbufs (struct file *file, + void *priv, struct v4l2_requestbuffers *vr) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int ret; + + RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); + + /* Check input validity: + the user must do a VIDEO CAPTURE and MMAP method. */ + if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || + (vr->memory != V4L2_MEMORY_MMAP)) + return -EINVAL; + + if(usbvision->streaming == Stream_On) { + if ((ret = usbvision_stream_interrupt(usbvision))) + return ret; } + + usbvision_frames_free(usbvision); + usbvision_empty_framequeues(usbvision); + vr->count = usbvision_frames_alloc(usbvision,vr->count); + + usbvision->curFrame = NULL; + return 0; } -static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static int vidioc_querybuf (struct file *file, + void *priv, struct v4l2_buffer *vb) { - return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl); + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + struct usbvision_frame *frame; + + /* FIXME : must control + that buffers are mapped (VIDIOC_REQBUFS has been called) */ + if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { + return -EINVAL; + } + if(vb->index>=usbvision->num_frames) { + return -EINVAL; + } + /* Updating the corresponding frame state */ + vb->flags = 0; + frame = &usbvision->frame[vb->index]; + if(frame->grabstate >= FrameState_Ready) + vb->flags |= V4L2_BUF_FLAG_QUEUED; + if(frame->grabstate >= FrameState_Done) + vb->flags |= V4L2_BUF_FLAG_DONE; + if(frame->grabstate == FrameState_Unused) + vb->flags |= V4L2_BUF_FLAG_MAPPED; + vb->memory = V4L2_MEMORY_MMAP; + + vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); + + vb->memory = V4L2_MEMORY_MMAP; + vb->field = V4L2_FIELD_NONE; + vb->length = usbvision->curwidth* + usbvision->curheight* + usbvision->palette.bytes_per_pixel; + vb->timestamp = usbvision->frame[vb->index].timestamp; + vb->sequence = usbvision->frame[vb->index].sequence; + return 0; +} + +static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + struct usbvision_frame *frame; + unsigned long lock_flags; + + /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ + if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { + return -EINVAL; + } + if(vb->index>=usbvision->num_frames) { + return -EINVAL; + } + + frame = &usbvision->frame[vb->index]; + + if (frame->grabstate != FrameState_Unused) { + return -EAGAIN; + } + + /* Mark it as ready and enqueue frame */ + frame->grabstate = FrameState_Ready; + frame->scanstate = ScanState_Scanning; + frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ + + vb->flags &= ~V4L2_BUF_FLAG_DONE; + + /* set v4l2_format index */ + frame->v4l2_format = usbvision->palette; + + spin_lock_irqsave(&usbvision->queue_lock, lock_flags); + list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); + spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); + + return 0; } +static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int ret; + struct usbvision_frame *f; + unsigned long lock_flags; + + if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (list_empty(&(usbvision->outqueue))) { + if (usbvision->streaming == Stream_Idle) + return -EINVAL; + ret = wait_event_interruptible + (usbvision->wait_frame, + !list_empty(&(usbvision->outqueue))); + if (ret) + return ret; + } + + spin_lock_irqsave(&usbvision->queue_lock, lock_flags); + f = list_entry(usbvision->outqueue.next, + struct usbvision_frame, frame); + list_del(usbvision->outqueue.next); + spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); + + f->grabstate = FrameState_Unused; + + vb->memory = V4L2_MEMORY_MMAP; + vb->flags = V4L2_BUF_FLAG_MAPPED | + V4L2_BUF_FLAG_QUEUED | + V4L2_BUF_FLAG_DONE; + vb->index = f->index; + vb->sequence = f->sequence; + vb->timestamp = f->timestamp; + vb->field = V4L2_FIELD_NONE; + vb->bytesused = f->scanlength; + + return 0; +} + +static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; + + usbvision->streaming = Stream_On; + call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); + + return 0; +} + +static int vidioc_streamoff(struct file *file, + void *priv, enum v4l2_buf_type type) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; + + if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if(usbvision->streaming == Stream_On) { + usbvision_stream_interrupt(usbvision); + /* Stop all video streamings */ + call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); + } + usbvision_empty_framequeues(usbvision); + + return 0; +} + +static int vidioc_enum_fmt_cap (struct file *file, void *priv, + struct v4l2_fmtdesc *vfd) +{ + if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { + return -EINVAL; + } + vfd->flags = 0; + vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); + vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; + memset(vfd->reserved, 0, sizeof(vfd->reserved)); + return 0; +} + +static int vidioc_g_fmt_cap (struct file *file, void *priv, + struct v4l2_format *vf) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + vf->fmt.pix.width = usbvision->curwidth; + vf->fmt.pix.height = usbvision->curheight; + vf->fmt.pix.pixelformat = usbvision->palette.format; + vf->fmt.pix.bytesperline = + usbvision->curwidth*usbvision->palette.bytes_per_pixel; + vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; + vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ + + return 0; +} + +static int vidioc_try_fmt_cap (struct file *file, void *priv, + struct v4l2_format *vf) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int formatIdx; + + /* Find requested format in available ones */ + for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { + if(vf->fmt.pix.pixelformat == + usbvision_v4l2_format[formatIdx].format) { + usbvision->palette = usbvision_v4l2_format[formatIdx]; + break; + } + } + /* robustness */ + if(formatIdx == USBVISION_SUPPORTED_PALETTES) { + return -EINVAL; + } + RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); + RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); + + vf->fmt.pix.bytesperline = vf->fmt.pix.width* + usbvision->palette.bytes_per_pixel; + vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; + + return 0; +} + +static int vidioc_s_fmt_cap(struct file *file, void *priv, + struct v4l2_format *vf) +{ + struct video_device *dev = video_devdata(file); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); + int ret; + + if( 0 != (ret=vidioc_try_fmt_cap (file, priv, vf)) ) { + return ret; + } + + /* stop io in case it is already in progress */ + if(usbvision->streaming == Stream_On) { + if ((ret = usbvision_stream_interrupt(usbvision))) + return ret; + } + usbvision_frames_free(usbvision); + usbvision_empty_framequeues(usbvision); + + usbvision->curFrame = NULL; + + /* by now we are committed to the new data... */ + down(&usbvision->lock); + usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); + up(&usbvision->lock); + + return 0; +} static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); int noblock = file->f_flags & O_NONBLOCK; unsigned long lock_flags; int ret,i; struct usbvision_frame *frame; - PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock); + PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, + (unsigned long)count, noblock); if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) return -EFAULT; - /* This entry point is compatible with the mmap routines so that a user can do either - VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */ + /* This entry point is compatible with the mmap routines + so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF + to get frames or call read on the device. */ if(!usbvision->num_frames) { - /* First, allocate some frames to work with if this has not been done with - VIDIOC_REQBUF */ + /* First, allocate some frames to work with + if this has not been done with VIDIOC_REQBUF */ usbvision_frames_free(usbvision); usbvision_empty_framequeues(usbvision); usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); @@ -1086,21 +1116,24 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); } - /* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */ + /* Then, enqueue as many frames as possible + (like a user of VIDIOC_QBUF would do) */ for(i=0;i<usbvision->num_frames;i++) { frame = &usbvision->frame[i]; if(frame->grabstate == FrameState_Unused) { /* Mark it as ready and enqueue frame */ frame->grabstate = FrameState_Ready; frame->scanstate = ScanState_Scanning; - frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ + /* Accumulated in usbvision_parse_data() */ + frame->scanlength = 0; /* set v4l2_format index */ frame->v4l2_format = usbvision->palette; spin_lock_irqsave(&usbvision->queue_lock, lock_flags); list_add_tail(&frame->frame, &usbvision->inqueue); - spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); + spin_unlock_irqrestore(&usbvision->queue_lock, + lock_flags); } } @@ -1128,8 +1161,9 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, return 0; } - PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__, - frame->index, frame->bytes_read, frame->scanlength); + PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", + __FUNCTION__, + frame->index, frame->bytes_read, frame->scanlength); /* copy bytes to user space; we allow for partials reads */ if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) @@ -1140,10 +1174,11 @@ static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, } frame->bytes_read += count; - PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__, - (unsigned long)count, frame->bytes_read); + PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", + __FUNCTION__, + (unsigned long)count, frame->bytes_read); - // For now, forget the frame if it has not been read in one shot. + /* For now, forget the frame if it has not been read in one shot. */ /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ frame->bytes_read = 0; @@ -1162,7 +1197,8 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) u32 i; struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); PDEBUG(DBG_MMAP, "mmap"); @@ -1180,11 +1216,13 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) } for (i = 0; i < usbvision->num_frames; i++) { - if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff) + if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == + vma->vm_pgoff) break; } if (i == usbvision->num_frames) { - PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range"); + PDEBUG(DBG_MMAP, + "mmap: user supplied mapping address is out of range"); up(&usbvision->lock); return -EINVAL; } @@ -1218,8 +1256,8 @@ static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) static int usbvision_radio_open(struct inode *inode, struct file *file) { struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); - struct v4l2_frequency freq; + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); int errCode = 0; PDEBUG(DBG_IO, "%s:", __FUNCTION__); @@ -1249,8 +1287,6 @@ static int usbvision_radio_open(struct inode *inode, struct file *file) // If so far no errors then we shall start the radio usbvision->radio = 1; call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); - freq.frequency = 1517; //SWR3 @ 94.8MHz - call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq); usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); usbvision->user++; } @@ -1270,7 +1306,8 @@ static int usbvision_radio_open(struct inode *inode, struct file *file) static int usbvision_radio_close(struct inode *inode, struct file *file) { struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); + struct usb_usbvision *usbvision = + (struct usb_usbvision *) video_get_drvdata(dev); int errCode = 0; PDEBUG(DBG_IO, ""); @@ -1304,149 +1341,6 @@ static int usbvision_radio_close(struct inode *inode, struct file *file) return errCode; } -static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, void *arg) -{ - struct video_device *dev = video_devdata(file); - struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); - - if (!USBVISION_IS_OPERATIONAL(usbvision)) - return -EIO; - - switch (cmd) { - case VIDIOC_QUERYCAP: - { - struct v4l2_capability *vc=arg; - - memset(vc, 0, sizeof(*vc)); - strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); - strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, - sizeof(vc->card)); - strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, - sizeof(vc->bus_info)); - vc->version = USBVISION_DRIVER_VERSION; - vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); - PDEBUG(DBG_IO, "VIDIOC_QUERYCAP"); - return 0; - } - case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *ctrl = arg; - int id=ctrl->id; - - memset(ctrl,0,sizeof(*ctrl)); - ctrl->id=id; - - call_i2c_clients(usbvision, cmd, arg); - PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); - - if (ctrl->type) - return 0; - else - return -EINVAL; - - } - case VIDIOC_G_CTRL: - { - struct v4l2_control *ctrl = arg; - - call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); - PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); - return 0; - } - case VIDIOC_S_CTRL: - { - struct v4l2_control *ctrl = arg; - - call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); - PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); - return 0; - } - case VIDIOC_G_TUNER: - { - struct v4l2_tuner *t = arg; - - if (t->index > 0) - return -EINVAL; - - memset(t,0,sizeof(*t)); - strcpy(t->name, "Radio"); - t->type = V4L2_TUNER_RADIO; - - /* Let clients fill in the remainder of this struct */ - call_i2c_clients(usbvision,VIDIOC_G_TUNER,t); - PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc); - return 0; - } - case VIDIOC_S_TUNER: - { - struct v4l2_tuner *vt = arg; - - // Only no or one tuner for now - if (!usbvision->have_tuner || vt->index) - return -EINVAL; - /* let clients handle this */ - call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); - - PDEBUG(DBG_IO, "VIDIOC_S_TUNER"); - return 0; - } - case VIDIOC_G_AUDIO: - { - struct v4l2_audio *a = arg; - - memset(a,0,sizeof(*a)); - strcpy(a->name,"Radio"); - PDEBUG(DBG_IO, "VIDIOC_G_AUDIO"); - return 0; - } - case VIDIOC_S_AUDIO: - case VIDIOC_S_INPUT: - case VIDIOC_S_STD: - return 0; - - case VIDIOC_G_FREQUENCY: - { - struct v4l2_frequency *f = arg; - - memset(f,0,sizeof(*f)); - - f->type = V4L2_TUNER_RADIO; - f->frequency = usbvision->freq; - call_i2c_clients(usbvision, cmd, f); - PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency); - - return 0; - } - case VIDIOC_S_FREQUENCY: - { - struct v4l2_frequency *f = arg; - - if (f->tuner != 0) - return -EINVAL; - usbvision->freq = f->frequency; - call_i2c_clients(usbvision, cmd, f); - PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency); - - return 0; - } - default: - { - PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd); - return -ENOIOCTLCMD; - } - } - return 0; -} - - -static int usbvision_radio_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl); -} - - /* * Here comes the stuff for vbi on usbvision based devices * @@ -1454,21 +1348,21 @@ static int usbvision_radio_ioctl(struct inode *inode, struct file *file, static int usbvision_vbi_open(struct inode *inode, struct file *file) { /* TODO */ - return -EINVAL; + return -ENODEV; } static int usbvision_vbi_close(struct inode *inode, struct file *file) { /* TODO */ - return -EINVAL; + return -ENODEV; } static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg) { /* TODO */ - return -EINVAL; + return -ENOIOCTLCMD; } static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, @@ -1489,8 +1383,11 @@ static const struct file_operations usbvision_fops = { .release = usbvision_v4l2_close, .read = usbvision_v4l2_read, .mmap = usbvision_v4l2_mmap, - .ioctl = usbvision_v4l2_ioctl, + .ioctl = video_ioctl2, .llseek = no_llseek, +/* .poll = video_poll, */ + .mmap = usbvision_v4l2_mmap, + .compat_ioctl = v4l_compat_ioctl32, }; static struct video_device usbvision_video_template = { .owner = THIS_MODULE, @@ -1500,6 +1397,39 @@ static struct video_device usbvision_video_template = { .name = "usbvision-video", .release = video_device_release, .minor = -1, + .vidioc_querycap = vidioc_querycap, + .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, + .vidioc_g_fmt_cap = vidioc_g_fmt_cap, + .vidioc_try_fmt_cap = vidioc_try_fmt_cap, + .vidioc_s_fmt_cap = vidioc_s_fmt_cap, + .vidioc_reqbufs = vidioc_reqbufs, + .vidioc_querybuf = vidioc_querybuf, + .vidioc_qbuf = vidioc_qbuf, + .vidioc_dqbuf = vidioc_dqbuf, + .vidioc_s_std = vidioc_s_std, + .vidioc_enum_input = vidioc_enum_input, + .vidioc_g_input = vidioc_g_input, + .vidioc_s_input = vidioc_s_input, + .vidioc_queryctrl = vidioc_queryctrl, + .vidioc_g_audio = vidioc_g_audio, + .vidioc_g_audio = vidioc_s_audio, + .vidioc_g_ctrl = vidioc_g_ctrl, + .vidioc_s_ctrl = vidioc_s_ctrl, + .vidioc_streamon = vidioc_streamon, + .vidioc_streamoff = vidioc_streamoff, +#ifdef CONFIG_VIDEO_V4L1_COMPAT +/* .vidiocgmbuf = vidiocgmbuf, */ +#endif + .vidioc_g_tuner = vidioc_g_tuner, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_frequency = vidioc_g_frequency, + .vidioc_s_frequency = vidioc_s_frequency, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .vidioc_g_register = vidioc_g_register, + .vidioc_s_register = vidioc_s_register, +#endif + .tvnorms = USBVISION_NORMS, + .current_norm = V4L2_STD_PAL }; @@ -1508,8 +1438,9 @@ static const struct file_operations usbvision_radio_fops = { .owner = THIS_MODULE, .open = usbvision_radio_open, .release = usbvision_radio_close, - .ioctl = usbvision_radio_ioctl, + .ioctl = video_ioctl2, .llseek = no_llseek, + .compat_ioctl = v4l_compat_ioctl32, }; static struct video_device usbvision_radio_template= @@ -1518,12 +1449,27 @@ static struct video_device usbvision_radio_template= .type = VID_TYPE_TUNER, .hardware = VID_HARDWARE_USBVISION, .fops = &usbvision_radio_fops, - .release = video_device_release, .name = "usbvision-radio", + .release = video_device_release, .minor = -1, + .vidioc_querycap = vidioc_querycap, + .vidioc_enum_input = vidioc_enum_input, + .vidioc_g_input = vidioc_g_input, + .vidioc_s_input = vidioc_s_input, + .vidioc_queryctrl = vidioc_queryctrl, + .vidioc_g_audio = vidioc_g_audio, + .vidioc_g_audio = vidioc_s_audio, + .vidioc_g_ctrl = vidioc_g_ctrl, + .vidioc_s_ctrl = vidioc_s_ctrl, + .vidioc_g_tuner = vidioc_g_tuner, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_frequency = vidioc_g_frequency, + .vidioc_s_frequency = vidioc_s_frequency, + + .tvnorms = USBVISION_NORMS, + .current_norm = V4L2_STD_PAL }; - // vbi template static const struct file_operations usbvision_vbi_fops = { .owner = THIS_MODULE, @@ -1531,6 +1477,7 @@ static const struct file_operations usbvision_vbi_fops = { .release = usbvision_vbi_close, .ioctl = usbvision_vbi_ioctl, .llseek = no_llseek, + .compat_ioctl = v4l_compat_ioctl32, }; static struct video_device usbvision_vbi_template= @@ -1574,11 +1521,11 @@ static void usbvision_unregister_video(struct usb_usbvision *usbvision) { // vbi Device: if (usbvision->vbi) { - PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f); + PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", + usbvision->vbi->minor & 0x1f); if (usbvision->vbi->minor != -1) { video_unregister_device(usbvision->vbi); - } - else { + } else { video_device_release(usbvision->vbi); } usbvision->vbi = NULL; @@ -1586,11 +1533,11 @@ static void usbvision_unregister_video(struct usb_usbvision *usbvision) // Radio Device: if (usbvision->rdev) { - PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f); + PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", + usbvision->rdev->minor & 0x1f); if (usbvision->rdev->minor != -1) { video_unregister_device(usbvision->rdev); - } - else { + } else { video_device_release(usbvision->rdev); } usbvision->rdev = NULL; @@ -1598,11 +1545,11 @@ static void usbvision_unregister_video(struct usb_usbvision *usbvision) // Video Device: if (usbvision->vdev) { - PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f); + PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", + usbvision->vdev->minor & 0x1f); if (usbvision->vdev->minor != -1) { video_unregister_device(usbvision->vdev); - } - else { + } else { video_device_release(usbvision->vdev); } usbvision->vdev = NULL; @@ -1613,37 +1560,52 @@ static void usbvision_unregister_video(struct usb_usbvision *usbvision) static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) { // Video Device: - usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video"); + usbvision->vdev = usbvision_vdev_init(usbvision, + &usbvision_video_template, + "USBVision Video"); if (usbvision->vdev == NULL) { goto err_exit; } - if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) { + if (video_register_device(usbvision->vdev, + VFL_TYPE_GRABBER, + video_nr)<0) { goto err_exit; } - printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f); + printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", + usbvision->nr,usbvision->vdev->minor & 0x1f); // Radio Device: if (usbvision_device_data[usbvision->DevModel].Radio) { // usbvision has radio - usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio"); + usbvision->rdev = usbvision_vdev_init(usbvision, + &usbvision_radio_template, + "USBVision Radio"); if (usbvision->rdev == NULL) { goto err_exit; } - if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) { + if (video_register_device(usbvision->rdev, + VFL_TYPE_RADIO, + radio_nr)<0) { goto err_exit; } - printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f); + printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", + usbvision->nr, usbvision->rdev->minor & 0x1f); } // vbi Device: if (usbvision_device_data[usbvision->DevModel].vbi) { - usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI"); + usbvision->vbi = usbvision_vdev_init(usbvision, + &usbvision_vbi_template, + "USBVision VBI"); if (usbvision->vdev == NULL) { goto err_exit; } - if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) { + if (video_register_device(usbvision->vbi, + VFL_TYPE_VBI, + vbi_nr)<0) { goto err_exit; } - printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f); + printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", + usbvision->nr,usbvision->vbi->minor & 0x1f); } // all done return 0; @@ -1657,7 +1619,8 @@ static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) /* * usbvision_alloc() * - * This code allocates the struct usb_usbvision. It is filled with default values. + * This code allocates the struct usb_usbvision. + * It is filled with default values. * * Returns NULL on error, a pointer to usb_usbvision else. * @@ -1666,7 +1629,8 @@ static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) { struct usb_usbvision *usbvision; - if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) { + if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == + NULL) { goto err_exit; } @@ -1728,11 +1692,11 @@ static void usbvision_release(struct usb_usbvision *usbvision) } -/******************************** usb interface *****************************************/ +/*********************** usb interface **********************************/ static void usbvision_configure_video(struct usb_usbvision *usbvision) { - int model,i; + int model; if (usbvision == NULL) return; @@ -1741,25 +1705,23 @@ static void usbvision_configure_video(struct usb_usbvision *usbvision) usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) { - usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2; + usbvision->Vin_Reg2_Preset = + usbvision_device_data[usbvision->DevModel].Vin_Reg2; } else { usbvision->Vin_Reg2_Preset = 0; } - for (i = 0; i < TVNORMS; i++) - if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode) - break; - if (i == TVNORMS) - i = 0; - usbvision->tvnorm = &tvnorms[i]; /* set default norm */ + usbvision->tvnormId = usbvision_device_data[model].VideoNorm; usbvision->video_inputs = usbvision_device_data[model].VideoChannels; usbvision->ctl_input = 0; /* This should be here to make i2c clients to be able to register */ - usbvision_audio_off(usbvision); //first switch off audio + /* first switch off audio */ + usbvision_audio_off(usbvision); if (!PowerOnAtOpen) { - usbvision_power_on(usbvision); //and then power up the noisy tuner + /* and then power up the noisy tuner */ + usbvision_power_on(usbvision); usbvision_i2c_register(usbvision); } } @@ -1796,18 +1758,22 @@ static int __devinit usbvision_probe(struct usb_interface *intf, if (usbvision_device_data[model].Interface >= 0) { interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; - } - else { + } else { interface = &dev->actconfig->interface[ifnum]->altsetting[0]; } endpoint = &interface->endpoint[1].desc; - if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) { - err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum); - err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes); + if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != + USB_ENDPOINT_XFER_ISOC) { + err("%s: interface %d. has non-ISO endpoint!", + __FUNCTION__, ifnum); + err("%s: Endpoint attributes %d", + __FUNCTION__, endpoint->bmAttributes); return -ENODEV; } - if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { - err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum); + if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == + USB_DIR_OUT) { + err("%s: interface %d. has ISO OUT endpoint!", + __FUNCTION__, ifnum); return -ENODEV; } @@ -1818,11 +1784,9 @@ static int __devinit usbvision_probe(struct usb_interface *intf, if (dev->descriptor.bNumConfigurations > 1) { usbvision->bridgeType = BRIDGE_NT1004; - } - else if (model == DAZZLE_DVC_90_REV_1_SECAM) { + } else if (model == DAZZLE_DVC_90_REV_1_SECAM) { usbvision->bridgeType = BRIDGE_NT1005; - } - else { + } else { usbvision->bridgeType = BRIDGE_NT1003; } PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); @@ -1919,11 +1883,11 @@ static void __devexit usbvision_disconnect(struct usb_interface *intf) up(&usbvision->lock); if (usbvision->user) { - printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__); + printk(KERN_INFO "%s: In use, disconnect pending\n", + __FUNCTION__); wake_up_interruptible(&usbvision->wait_frame); wake_up_interruptible(&usbvision->wait_stream); - } - else { + } else { usbvision_release(usbvision); } @@ -1950,7 +1914,6 @@ static int __init usbvision_init(void) PDEBUG(DBG_PROBE, ""); - PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]"); PDEBUG(DBG_IO, "IO debugging is enabled [video]"); PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); diff --git a/drivers/media/video/usbvision/usbvision.h b/drivers/media/video/usbvision/usbvision.h index c759d00d7014..c5b6c501c869 100644 --- a/drivers/media/video/usbvision/usbvision.h +++ b/drivers/media/video/usbvision/usbvision.h @@ -221,6 +221,8 @@ enum { #define I2C_USB_ADAP_MAX 16 +#define USBVISION_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_M) + /* ----------------------------------------------------------------- */ /* usbvision video structures */ /* ----------------------------------------------------------------- */ @@ -301,14 +303,6 @@ struct usbvision_frame_header { __u16 frameHeight; /* 10 - 11 after endian correction*/ }; -/* tvnorms */ -struct usbvision_tvnorm { - char *name; - v4l2_std_id id; - /* mode for saa7113h */ - int mode; -}; - struct usbvision_frame { char *data; /* Frame buffer */ struct usbvision_frame_header isocHeader; /* Header from stream */ @@ -386,7 +380,6 @@ struct usb_usbvision { int tuner_type; int tuner_addr; int bridgeType; // NT1003, NT1004, NT1005 - int channel; int radio; int video_inputs; // # of inputs unsigned long freq; @@ -441,7 +434,7 @@ struct usb_usbvision { struct v4l2_capability vcap; /* Video capabilities */ unsigned int ctl_input; /* selected input */ - struct usbvision_tvnorm *tvnorm; /* selected tv norm */ + v4l2_std_id tvnormId; /* selected tv norm */ unsigned char video_endp; /* 0x82 for USBVISION devices based */ // Decompression stuff: diff --git a/drivers/media/video/video-buf-dvb.c b/drivers/media/video/video-buf-dvb.c index fcc5467e7636..e617925ba31e 100644 --- a/drivers/media/video/video-buf-dvb.c +++ b/drivers/media/video/video-buf-dvb.c @@ -47,6 +47,7 @@ static int videobuf_dvb_thread(void *data) int err; dprintk("dvb thread started\n"); + set_freezable(); videobuf_read_start(&dvb->dvbq); for (;;) { diff --git a/drivers/media/video/vino.c b/drivers/media/video/vino.c index 0c658b74f2c4..e94a9a6036f5 100644 --- a/drivers/media/video/vino.c +++ b/drivers/media/video/vino.c @@ -2077,12 +2077,10 @@ static int vino_wait_for_frame(struct vino_channel_settings *vcs) init_waitqueue_entry(&wait, current); /* add ourselves into wait queue */ add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); - /* and set current state */ - set_current_state(TASK_INTERRUPTIBLE); /* to ensure that schedule_timeout will return immediately - * if VINO interrupt was triggred meanwhile */ - schedule_timeout(HZ / 10); + * if VINO interrupt was triggered meanwhile */ + schedule_timeout_interruptible(HZ / 10); if (signal_pending(current)) err = -EINTR; diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index f7e1d1910374..f6d3a9460ccc 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -25,6 +25,7 @@ #include <linux/pci.h> #include <linux/random.h> #include <linux/version.h> +#include <linux/mutex.h> #include <linux/videodev2.h> #include <linux/dma-mapping.h> #ifdef CONFIG_VIDEO_V4L1_COMPAT @@ -145,9 +146,6 @@ struct vivi_buffer { struct vivi_fmt *fmt; -#ifdef CONFIG_VIVI_SCATTER - struct sg_to_addr *to_addr; -#endif }; struct vivi_dmaqueue { @@ -168,7 +166,7 @@ static LIST_HEAD(vivi_devlist); struct vivi_dev { struct list_head vivi_devlist; - struct semaphore lock; + struct mutex lock; int users; @@ -232,68 +230,13 @@ static u8 bars[8][3] = { #define TSTAMP_MAX_Y TSTAMP_MIN_Y+15 #define TSTAMP_MIN_X 64 -#ifdef CONFIG_VIVI_SCATTER -static void prep_to_addr(struct sg_to_addr to_addr[], - struct videobuf_buffer *vb) -{ - int i, pos=0; - - for (i=0;i<vb->dma.nr_pages;i++) { - to_addr[i].sg=&vb->dma.sglist[i]; - to_addr[i].pos=pos; - pos += vb->dma.sglist[i].length; - } -} - -static int get_addr_pos(int pos, int pages, struct sg_to_addr to_addr[]) -{ - int p1=0,p2=pages-1,p3=pages/2; - - /* Sanity test */ - BUG_ON (pos>=to_addr[p2].pos+to_addr[p2].sg->length); - - while (p1+1<p2) { - if (pos < to_addr[p3].pos) { - p2=p3; - } else { - p1=p3; - } - p3=(p1+p2)/2; - } - if (pos >= to_addr[p2].pos) - p1=p2; - - return (p1); -} -#endif -#ifdef CONFIG_VIVI_SCATTER -static void gen_line(struct sg_to_addr to_addr[],int inipos,int pages,int wmax, - int hmax, int line, char *timestr) -#else static void gen_line(char *basep,int inipos,int wmax, int hmax, int line, char *timestr) -#endif { int w,i,j,pos=inipos,y; char *p,*s; u8 chr,r,g,b,color; -#ifdef CONFIG_VIVI_SCATTER - int pgpos,oldpg; - char *basep; - struct page *pg; - - unsigned long flags; - spinlock_t spinlock; - - spin_lock_init(&spinlock); - - /* Get first addr pointed to pixel position */ - oldpg=get_addr_pos(pos,pages,to_addr); - pg=pfn_to_page(sg_dma_address(to_addr[oldpg].sg) >> PAGE_SHIFT); - spin_lock_irqsave(&spinlock,flags); - basep = kmap_atomic(pg, KM_BOUNCE_READ)+to_addr[oldpg].sg->offset; -#endif /* We will just duplicate the second pixel at the packet */ wmax/=2; @@ -305,18 +248,7 @@ static void gen_line(char *basep,int inipos,int wmax, b=bars[w*7/wmax][2]; for (color=0;color<4;color++) { -#ifdef CONFIG_VIVI_SCATTER - pgpos=get_addr_pos(pos,pages,to_addr); - if (pgpos!=oldpg) { - pg=pfn_to_page(sg_dma_address(to_addr[pgpos].sg) >> PAGE_SHIFT); - kunmap_atomic(basep, KM_BOUNCE_READ); - basep= kmap_atomic(pg, KM_BOUNCE_READ)+to_addr[pgpos].sg->offset; - oldpg=pgpos; - } - p=basep+pos-to_addr[pgpos].pos; -#else p=basep+pos; -#endif switch (color) { case 0: @@ -361,23 +293,7 @@ static void gen_line(char *basep,int inipos,int wmax, pos=inipos+j*2; for (color=0;color<4;color++) { -#ifdef CONFIG_VIVI_SCATTER - pgpos=get_addr_pos(pos,pages,to_addr); - if (pgpos!=oldpg) { - pg=pfn_to_page(sg_dma_address( - to_addr[pgpos].sg) - >> PAGE_SHIFT); - kunmap_atomic(basep, - KM_BOUNCE_READ); - basep= kmap_atomic(pg, - KM_BOUNCE_READ)+ - to_addr[pgpos].sg->offset; - oldpg=pgpos; - } - p=basep+pos-to_addr[pgpos].pos; -#else p=basep+pos; -#endif y=TO_Y(r,g,b); @@ -402,12 +318,7 @@ static void gen_line(char *basep,int inipos,int wmax, end: -#ifdef CONFIG_VIVI_SCATTER - kunmap_atomic(basep, KM_BOUNCE_READ); - spin_unlock_irqrestore(&spinlock,flags); -#else return; -#endif } static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf) { @@ -415,35 +326,16 @@ static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf) int hmax = buf->vb.height; int wmax = buf->vb.width; struct timeval ts; -#ifdef CONFIG_VIVI_SCATTER - struct sg_to_addr *to_addr=buf->to_addr; - struct videobuf_buffer *vb=&buf->vb; -#else char *tmpbuf; -#endif - -#ifdef CONFIG_VIVI_SCATTER - /* Test if DMA mapping is ready */ - if (!sg_dma_address(&vb->dma.sglist[0])) - return; - - prep_to_addr(to_addr,vb); - /* Check if there is enough memory */ - BUG_ON(buf->vb.dma.nr_pages << PAGE_SHIFT < (buf->vb.width*buf->vb.height)*2); -#else if (buf->vb.dma.varea) { tmpbuf=kmalloc (wmax*2, GFP_KERNEL); } else { tmpbuf=buf->vb.dma.vmalloc; } -#endif for (h=0;h<hmax;h++) { -#ifdef CONFIG_VIVI_SCATTER - gen_line(to_addr,pos,vb->dma.nr_pages,wmax,hmax,h,dev->timestr); -#else if (buf->vb.dma.varea) { gen_line(tmpbuf,0,wmax,hmax,h,dev->timestr); /* FIXME: replacing to __copy_to_user */ @@ -452,7 +344,6 @@ static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf) } else { gen_line(tmpbuf,pos,wmax,hmax,h,dev->timestr); } -#endif pos += wmax*2; } @@ -573,6 +464,7 @@ static int vivi_thread(void *data) dprintk(1,"thread started\n"); mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); + set_freezable(); for (;;) { vivi_sleep(dma_q); @@ -717,11 +609,6 @@ static void free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf) if (in_interrupt()) BUG(); -#ifdef CONFIG_VIVI_SCATTER - /*FIXME: Maybe a spinlock is required here */ - kfree(buf->to_addr); - buf->to_addr=NULL; -#endif videobuf_waiton(&buf->vb,0,0); videobuf_dma_unmap(vq, &buf->vb.dma); @@ -767,12 +654,6 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, buf->vb.state = STATE_PREPARED; -#ifdef CONFIG_VIVI_SCATTER - if (NULL == (buf->to_addr = kmalloc(sizeof(*buf->to_addr) * vb->dma.nr_pages,GFP_KERNEL))) { - rc=-ENOMEM; - goto fail; - } -#endif return 0; fail: @@ -837,40 +718,6 @@ static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb free_buffer(vq,buf); } -#ifdef CONFIG_VIVI_SCATTER -static int vivi_map_sg(void *dev, struct scatterlist *sg, int nents, - int direction) -{ - int i; - - dprintk(1,"%s, number of pages=%d\n",__FUNCTION__,nents); - BUG_ON(direction == DMA_NONE); - - for (i = 0; i < nents; i++ ) { - BUG_ON(!sg[i].page); - - sg_dma_address(&sg[i]) = page_to_phys(sg[i].page) + sg[i].offset; - } - - return nents; -} - -static int vivi_unmap_sg(void *dev,struct scatterlist *sglist,int nr_pages, - int direction) -{ - dprintk(1,"%s\n",__FUNCTION__); - return 0; -} - -static int vivi_dma_sync_sg(void *dev,struct scatterlist *sglist, int nr_pages, - int direction) -{ -// dprintk(1,"%s\n",__FUNCTION__); - -// flush_write_buffers(); - return 0; -} -#endif static struct videobuf_queue_ops vivi_video_qops = { .buf_setup = buffer_setup, @@ -892,16 +739,16 @@ static struct videobuf_queue_ops vivi_video_qops = { static int res_get(struct vivi_dev *dev, struct vivi_fh *fh) { /* is it free? */ - down(&dev->lock); + mutex_lock(&dev->lock); if (dev->resources) { /* no, someone else uses it */ - up(&dev->lock); + mutex_unlock(&dev->lock); return 0; } /* it's free, grab it */ dev->resources =1; dprintk(1,"res: get\n"); - up(&dev->lock); + mutex_unlock(&dev->lock); return 1; } @@ -912,10 +759,10 @@ static int res_locked(struct vivi_dev *dev) static void res_free(struct vivi_dev *dev, struct vivi_fh *fh) { - down(&dev->lock); + mutex_lock(&dev->lock); dev->resources = 0; dprintk(1,"res: put\n"); - up(&dev->lock); + mutex_lock(&dev->lock); } /* ------------------------------------------------------------------ @@ -1259,19 +1106,11 @@ static int vivi_open(struct inode *inode, struct file *file) sprintf(dev->timestr,"%02d:%02d:%02d:%03d", dev->h,dev->m,dev->s,(dev->us+500)/1000); -#ifdef CONFIG_VIVI_SCATTER - videobuf_queue_init(&fh->vb_vidq,VIDEOBUF_DMA_SCATTER, &vivi_video_qops, - NULL, NULL, - fh->type, - V4L2_FIELD_INTERLACED, - sizeof(struct vivi_buffer),fh); -#else videobuf_queue_init(&fh->vb_vidq, &vivi_video_qops, NULL, NULL, fh->type, V4L2_FIELD_INTERLACED, sizeof(struct vivi_buffer),fh); -#endif return 0; } @@ -1422,7 +1261,7 @@ static int __init vivi_init(void) init_waitqueue_head(&dev->vidq.wq); /* initialize locks */ - init_MUTEX(&dev->lock); + mutex_init(&dev->lock); dev->vidq.timeout.function = vivi_vid_timeout; dev->vidq.timeout.data = (unsigned long)dev; diff --git a/drivers/media/video/zc0301/Kconfig b/drivers/media/video/zc0301/Kconfig index 47cd93f9c7de..edb00293cd59 100644 --- a/drivers/media/video/zc0301/Kconfig +++ b/drivers/media/video/zc0301/Kconfig @@ -1,6 +1,6 @@ config USB_ZC0301 tristate "USB ZC0301[P] Image Processor and Control Chip support" - depends on VIDEO_V4L1 + depends on VIDEO_V4L2 ---help--- Say Y here if you want support for cameras based on the ZC0301 or ZC0301P Image Processors and Control Chips. diff --git a/drivers/media/video/zc0301/zc0301.h b/drivers/media/video/zc0301/zc0301.h index 710f12eb9126..a2de50efa31a 100644 --- a/drivers/media/video/zc0301/zc0301.h +++ b/drivers/media/video/zc0301/zc0301.h @@ -36,6 +36,7 @@ #include <linux/rwsem.h> #include <linux/stddef.h> #include <linux/string.h> +#include <linux/kref.h> #include "zc0301_sensor.h" @@ -98,7 +99,7 @@ struct zc0301_module_param { u16 frame_timeout; }; -static DECLARE_RWSEM(zc0301_disconnect); +static DECLARE_RWSEM(zc0301_dev_lock); struct zc0301_device { struct video_device* v4ldev; @@ -121,12 +122,14 @@ struct zc0301_device { struct zc0301_module_param module_param; + struct kref kref; enum zc0301_dev_state state; u8 users; - struct mutex dev_mutex, fileop_mutex; + struct completion probe; + struct mutex open_mutex, fileop_mutex; spinlock_t queue_lock; - wait_queue_head_t open, wait_frame, wait_stream; + wait_queue_head_t wait_open, wait_frame, wait_stream; }; /*****************************************************************************/ @@ -156,8 +159,8 @@ do { \ else if ((level) == 2) \ dev_info(&cam->usbdev->dev, fmt "\n", ## args); \ else if ((level) >= 3) \ - dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ - __FUNCTION__, __LINE__ , ## args); \ + dev_info(&cam->usbdev->dev, "[%s:%s:%d] " fmt "\n", \ + __FILE__, __FUNCTION__, __LINE__ , ## args); \ } \ } while (0) # define KDBG(level, fmt, args...) \ @@ -166,8 +169,8 @@ do { \ if ((level) == 1 || (level) == 2) \ pr_info("zc0301: " fmt "\n", ## args); \ else if ((level) == 3) \ - pr_debug("zc0301: [%s:%d] " fmt "\n", __FUNCTION__, \ - __LINE__ , ## args); \ + pr_debug("sn9c102: [%s:%s:%d] " fmt "\n", __FILE__, \ + __FUNCTION__, __LINE__ , ## args); \ } \ } while (0) # define V4LDBG(level, name, cmd) \ @@ -183,8 +186,8 @@ do { \ #undef PDBG #define PDBG(fmt, args...) \ -dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \ - __FUNCTION__, __LINE__ , ## args) +dev_info(&cam->usbdev->dev, "[%s:%s:%d] " fmt "\n", __FILE__, __FUNCTION__, \ + __LINE__ , ## args) #undef PDBGG #define PDBGG(fmt, args...) do {;} while(0) /* placeholder */ diff --git a/drivers/media/video/zc0301/zc0301_core.c b/drivers/media/video/zc0301/zc0301_core.c index f1120551c70c..703b741e46df 100644 --- a/drivers/media/video/zc0301/zc0301_core.c +++ b/drivers/media/video/zc0301/zc0301_core.c @@ -49,11 +49,11 @@ #define ZC0301_MODULE_NAME "V4L2 driver for ZC0301[P] " \ "Image Processor and Control Chip" -#define ZC0301_MODULE_AUTHOR "(C) 2006 Luca Risolia" +#define ZC0301_MODULE_AUTHOR "(C) 2006-2007 Luca Risolia" #define ZC0301_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>" #define ZC0301_MODULE_LICENSE "GPL" -#define ZC0301_MODULE_VERSION "1:1.07" -#define ZC0301_MODULE_VERSION_CODE KERNEL_VERSION(1, 1, 7) +#define ZC0301_MODULE_VERSION "1:1.10" +#define ZC0301_MODULE_VERSION_CODE KERNEL_VERSION(1, 1, 10) /*****************************************************************************/ @@ -573,7 +573,8 @@ static int zc0301_init(struct zc0301_device* cam) int err = 0; if (!(cam->state & DEV_INITIALIZED)) { - init_waitqueue_head(&cam->open); + mutex_init(&cam->open_mutex); + init_waitqueue_head(&cam->wait_open); qctrl = s->qctrl; rect = &(s->cropcap.defrect); cam->compression.quality = ZC0301_COMPRESSION_QUALITY; @@ -634,59 +635,73 @@ static int zc0301_init(struct zc0301_device* cam) return 0; } +/*****************************************************************************/ -static void zc0301_release_resources(struct zc0301_device* cam) +static void zc0301_release_resources(struct kref *kref) { + struct zc0301_device *cam = container_of(kref, struct zc0301_device, + kref); DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor); video_set_drvdata(cam->v4ldev, NULL); video_unregister_device(cam->v4ldev); + usb_put_dev(cam->usbdev); kfree(cam->control_buffer); + kfree(cam); } -/*****************************************************************************/ static int zc0301_open(struct inode* inode, struct file* filp) { struct zc0301_device* cam; int err = 0; - /* - This is the only safe way to prevent race conditions with - disconnect - */ - if (!down_read_trylock(&zc0301_disconnect)) + if (!down_read_trylock(&zc0301_dev_lock)) return -ERESTARTSYS; cam = video_get_drvdata(video_devdata(filp)); - if (mutex_lock_interruptible(&cam->dev_mutex)) { - up_read(&zc0301_disconnect); + if (wait_for_completion_interruptible(&cam->probe)) { + up_read(&zc0301_dev_lock); return -ERESTARTSYS; } + kref_get(&cam->kref); + + if (mutex_lock_interruptible(&cam->open_mutex)) { + kref_put(&cam->kref, zc0301_release_resources); + up_read(&zc0301_dev_lock); + return -ERESTARTSYS; + } + + if (cam->state & DEV_DISCONNECTED) { + DBG(1, "Device not present"); + err = -ENODEV; + goto out; + } + if (cam->users) { DBG(2, "Device /dev/video%d is busy...", cam->v4ldev->minor); + DBG(3, "Simultaneous opens are not supported"); if ((filp->f_flags & O_NONBLOCK) || (filp->f_flags & O_NDELAY)) { err = -EWOULDBLOCK; goto out; } - mutex_unlock(&cam->dev_mutex); - err = wait_event_interruptible_exclusive(cam->open, - cam->state & DEV_DISCONNECTED + DBG(2, "A blocking open() has been requested. Wait for the " + "device to be released..."); + up_read(&zc0301_dev_lock); + err = wait_event_interruptible_exclusive(cam->wait_open, + (cam->state & DEV_DISCONNECTED) || !cam->users); - if (err) { - up_read(&zc0301_disconnect); - return err; - } + down_read(&zc0301_dev_lock); + if (err) + goto out; if (cam->state & DEV_DISCONNECTED) { - up_read(&zc0301_disconnect); - return -ENODEV; + err = -ENODEV; + goto out; } - mutex_lock(&cam->dev_mutex); } - if (cam->state & DEV_MISCONFIGURED) { err = zc0301_init(cam); if (err) { @@ -711,36 +726,32 @@ static int zc0301_open(struct inode* inode, struct file* filp) DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor); out: - mutex_unlock(&cam->dev_mutex); - up_read(&zc0301_disconnect); + mutex_unlock(&cam->open_mutex); + if (err) + kref_put(&cam->kref, zc0301_release_resources); + up_read(&zc0301_dev_lock); return err; } static int zc0301_release(struct inode* inode, struct file* filp) { - struct zc0301_device* cam = video_get_drvdata(video_devdata(filp)); + struct zc0301_device* cam; - mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */ + down_write(&zc0301_dev_lock); - zc0301_stop_transfer(cam); + cam = video_get_drvdata(video_devdata(filp)); + zc0301_stop_transfer(cam); zc0301_release_buffers(cam); - - if (cam->state & DEV_DISCONNECTED) { - zc0301_release_resources(cam); - usb_put_dev(cam->usbdev); - mutex_unlock(&cam->dev_mutex); - kfree(cam); - return 0; - } - cam->users--; - wake_up_interruptible_nr(&cam->open, 1); + wake_up_interruptible_nr(&cam->wait_open, 1); DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor); - mutex_unlock(&cam->dev_mutex); + kref_put(&cam->kref, zc0301_release_resources); + + up_write(&zc0301_dev_lock); return 0; } @@ -775,7 +786,7 @@ zc0301_read(struct file* filp, char __user * buf, size_t count, loff_t* f_pos) DBG(3, "Close and open the device again to choose the read " "method"); mutex_unlock(&cam->fileop_mutex); - return -EINVAL; + return -EBUSY; } if (cam->io == IO_NONE) { @@ -953,7 +964,12 @@ static int zc0301_mmap(struct file* filp, struct vm_area_struct *vma) return -EIO; } - if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) || + if (!(vma->vm_flags & (VM_WRITE | VM_READ))) { + mutex_unlock(&cam->fileop_mutex); + return -EACCES; + } + + if (cam->io != IO_MMAP || size != PAGE_ALIGN(cam->frame[0].buf.length)) { mutex_unlock(&cam->fileop_mutex); return -EINVAL; @@ -984,7 +1000,6 @@ static int zc0301_mmap(struct file* filp, struct vm_area_struct *vma) vma->vm_ops = &zc0301_vm_ops; vma->vm_private_data = &cam->frame[i]; - zc0301_vm_open(vma); mutex_unlock(&cam->fileop_mutex); @@ -1211,7 +1226,7 @@ zc0301_vidioc_s_crop(struct zc0301_device* cam, void __user * arg) if (cam->frame[i].vma_use_count) { DBG(3, "VIDIOC_S_CROP failed. " "Unmap the buffers first."); - return -EINVAL; + return -EBUSY; } if (!s->set_crop) { @@ -1434,7 +1449,7 @@ zc0301_vidioc_try_s_fmt(struct zc0301_device* cam, unsigned int cmd, if (cam->frame[i].vma_use_count) { DBG(3, "VIDIOC_S_FMT failed. " "Unmap the buffers first."); - return -EINVAL; + return -EBUSY; } if (cam->stream == STREAM_ON) @@ -1544,14 +1559,14 @@ zc0301_vidioc_reqbufs(struct zc0301_device* cam, void __user * arg) if (cam->io == IO_READ) { DBG(3, "Close and open the device again to choose the mmap " "I/O method"); - return -EINVAL; + return -EBUSY; } for (i = 0; i < cam->nbuffers; i++) if (cam->frame[i].vma_use_count) { DBG(3, "VIDIOC_REQBUFS failed. " "Previous buffers are still mapped."); - return -EINVAL; + return -EBUSY; } if (cam->stream == STREAM_ON) @@ -1699,9 +1714,6 @@ zc0301_vidioc_streamon(struct zc0301_device* cam, void __user * arg) if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE || cam->io != IO_MMAP) return -EINVAL; - if (list_empty(&cam->inqueue)) - return -EINVAL; - cam->stream = STREAM_ON; DBG(3, "Stream on"); @@ -1949,8 +1961,6 @@ zc0301_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) goto fail; } - mutex_init(&cam->dev_mutex); - DBG(2, "ZC0301[P] Image Processor and Control Chip detected " "(vid/pid 0x%04X:0x%04X)",id->idVendor, id->idProduct); @@ -1982,7 +1992,7 @@ zc0301_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) cam->v4ldev->release = video_device_release; video_set_drvdata(cam->v4ldev, cam); - mutex_lock(&cam->dev_mutex); + init_completion(&cam->probe); err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER, video_nr[dev_nr]); @@ -1992,7 +2002,7 @@ zc0301_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) DBG(1, "Free /dev/videoX node not found"); video_nr[dev_nr] = -1; dev_nr = (dev_nr < ZC0301_MAX_DEVICES-1) ? dev_nr+1 : 0; - mutex_unlock(&cam->dev_mutex); + complete_all(&cam->probe); goto fail; } @@ -2004,8 +2014,10 @@ zc0301_usb_probe(struct usb_interface* intf, const struct usb_device_id* id) dev_nr = (dev_nr < ZC0301_MAX_DEVICES-1) ? dev_nr+1 : 0; usb_set_intfdata(intf, cam); + kref_init(&cam->kref); + usb_get_dev(cam->usbdev); - mutex_unlock(&cam->dev_mutex); + complete_all(&cam->probe); return 0; @@ -2022,40 +2034,31 @@ fail: static void zc0301_usb_disconnect(struct usb_interface* intf) { - struct zc0301_device* cam = usb_get_intfdata(intf); - - if (!cam) - return; + struct zc0301_device* cam; - down_write(&zc0301_disconnect); + down_write(&zc0301_dev_lock); - mutex_lock(&cam->dev_mutex); + cam = usb_get_intfdata(intf); DBG(2, "Disconnecting %s...", cam->v4ldev->name); - wake_up_interruptible_all(&cam->open); - if (cam->users) { DBG(2, "Device /dev/video%d is open! Deregistration and " - "memory deallocation are deferred on close.", + "memory deallocation are deferred.", cam->v4ldev->minor); cam->state |= DEV_MISCONFIGURED; zc0301_stop_transfer(cam); cam->state |= DEV_DISCONNECTED; wake_up_interruptible(&cam->wait_frame); wake_up(&cam->wait_stream); - usb_get_dev(cam->usbdev); - } else { + } else cam->state |= DEV_DISCONNECTED; - zc0301_release_resources(cam); - } - mutex_unlock(&cam->dev_mutex); + wake_up_interruptible_all(&cam->wait_open); - if (!cam->users) - kfree(cam); + kref_put(&cam->kref, zc0301_release_resources); - up_write(&zc0301_disconnect); + up_write(&zc0301_dev_lock); } diff --git a/drivers/media/video/zc0301/zc0301_pas202bcb.c b/drivers/media/video/zc0301/zc0301_pas202bcb.c index 3efb92a0d0da..24b0dfba357e 100644 --- a/drivers/media/video/zc0301/zc0301_pas202bcb.c +++ b/drivers/media/video/zc0301/zc0301_pas202bcb.c @@ -327,6 +327,7 @@ static struct zc0301_sensor pas202bcb = { .height = 480, .pixelformat = V4L2_PIX_FMT_JPEG, .priv = 8, + .colorspace = V4L2_COLORSPACE_JPEG, }, }; diff --git a/drivers/media/video/zc0301/zc0301_pb0330.c b/drivers/media/video/zc0301/zc0301_pb0330.c index 5784b1d1491c..9519aba3612e 100644 --- a/drivers/media/video/zc0301/zc0301_pb0330.c +++ b/drivers/media/video/zc0301/zc0301_pb0330.c @@ -157,6 +157,7 @@ static struct zc0301_sensor pb0330 = { .height = 480, .pixelformat = V4L2_PIX_FMT_JPEG, .priv = 8, + .colorspace = V4L2_COLORSPACE_JPEG, }, }; diff --git a/drivers/media/video/zc0301/zc0301_sensor.h b/drivers/media/video/zc0301/zc0301_sensor.h index 44e82cff9319..70fe6fc6cdd5 100644 --- a/drivers/media/video/zc0301/zc0301_sensor.h +++ b/drivers/media/video/zc0301/zc0301_sensor.h @@ -23,7 +23,7 @@ #define _ZC0301_SENSOR_H_ #include <linux/usb.h> -#include <linux/videodev.h> +#include <linux/videodev2.h> #include <linux/device.h> #include <linux/stddef.h> #include <linux/errno.h> diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c index cf0ed6cbb0e3..17118a490f81 100644 --- a/drivers/media/video/zoran_driver.c +++ b/drivers/media/video/zoran_driver.c @@ -183,14 +183,7 @@ static const int zoran_num_formats = (sizeof(zoran_formats) / sizeof(struct zoran_format)); // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined -#if !defined(CONFIG_BIGPHYS_AREA) -//#undef CONFIG_BIGPHYS_AREA -#define BUZ_USE_HIMEM -#endif -#if defined(CONFIG_BIGPHYS_AREA) -# include <linux/bigphysarea.h> -#endif extern int *zr_debug; @@ -250,7 +243,6 @@ static void jpg_fbuffer_free(struct file *file); * Linux with the necessary memory left over). */ -#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA) static unsigned long get_high_mem (unsigned long size) { @@ -314,7 +306,6 @@ get_high_mem (unsigned long size) return hi_mem_ph; } -#endif static int v4l_fbuffer_alloc (struct file *file) @@ -323,9 +314,7 @@ v4l_fbuffer_alloc (struct file *file) struct zoran *zr = fh->zr; int i, off; unsigned char *mem; -#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA) unsigned long pmem = 0; -#endif /* we might have old buffers lying around... */ if (fh->v4l_buffers.ready_to_be_freed) { @@ -369,39 +358,6 @@ v4l_fbuffer_alloc (struct file *file) ZR_DEVNAME(zr), i, (unsigned long) mem, virt_to_bus(mem)); } else { -#if defined(CONFIG_BIGPHYS_AREA) - /* Use bigphysarea_alloc_pages */ - - int n = - (fh->v4l_buffers.buffer_size + PAGE_SIZE - - 1) / PAGE_SIZE; - - mem = - (unsigned char *) bigphysarea_alloc_pages(n, 0, - GFP_KERNEL); - if (mem == 0) { - dprintk(1, - KERN_ERR - "%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n", - ZR_DEVNAME(zr), i); - v4l_fbuffer_free(file); - return -ENOBUFS; - } - fh->v4l_buffers.buffer[i].fbuffer = mem; - fh->v4l_buffers.buffer[i].fbuffer_phys = - virt_to_phys(mem); - fh->v4l_buffers.buffer[i].fbuffer_bus = - virt_to_bus(mem); - dprintk(4, - KERN_INFO - "%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n", - ZR_DEVNAME(zr), i, (unsigned) mem, - (unsigned) virt_to_bus(mem)); - - /* Zero out the allocated memory */ - memset(fh->v4l_buffers.buffer[i].fbuffer, 0, - fh->v4l_buffers.buffer_size); -#elif defined(BUZ_USE_HIMEM) /* Use high memory which has been left at boot time */ @@ -441,20 +397,6 @@ v4l_fbuffer_alloc (struct file *file) fh->v4l_buffers.buffer[i].fbuffer_bus = pmem + i * fh->v4l_buffers.buffer_size; } -#else - /* No bigphysarea present, usage of high memory disabled, - * but user wants buffers of more than MAX_KMALLOC_MEM */ - dprintk(1, - KERN_ERR - "%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n", - ZR_DEVNAME(zr)); - dprintk(1, - KERN_ERR - "%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n", - ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers, - fh->v4l_buffers.buffer_size >> 10); - return -ENOBUFS; -#endif } } @@ -485,11 +427,6 @@ v4l_fbuffer_free (struct file *file) ClearPageReserved(MAP_NR(mem + off)); kfree((void *) fh->v4l_buffers.buffer[i].fbuffer); } -#if defined(CONFIG_BIGPHYS_AREA) - else - bigphysarea_free_pages((void *) fh->v4l_buffers. - buffer[i].fbuffer); -#endif fh->v4l_buffers.buffer[i].fbuffer = NULL; } diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c index b5d3364c94c7..6f1892585cbb 100644 --- a/drivers/media/video/zr364xx.c +++ b/drivers/media/video/zr364xx.c @@ -92,6 +92,7 @@ static struct usb_device_id device_table[] = { {USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 }, {USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 }, {USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 }, + {USB_DEVICE(0x06d6, 0x003b), .driver_info = METHOD0 }, {} /* Terminating entry */ }; @@ -792,6 +793,7 @@ static int zr364xx_probe(struct usb_interface *intf, { struct usb_device *udev = interface_to_usbdev(intf); struct zr364xx_camera *cam = NULL; + int err; DBG("probing..."); @@ -799,12 +801,11 @@ static int zr364xx_probe(struct usb_interface *intf, info("model %04x:%04x detected", udev->descriptor.idVendor, udev->descriptor.idProduct); - if ((cam = - kmalloc(sizeof(struct zr364xx_camera), GFP_KERNEL)) == NULL) { + cam = kzalloc(sizeof(struct zr364xx_camera), GFP_KERNEL); + if (cam == NULL) { info("cam: out of memory !"); - return -ENODEV; + return -ENOMEM; } - memset(cam, 0x00, sizeof(struct zr364xx_camera)); /* save the init method used by this camera */ cam->method = id->driver_info; @@ -812,7 +813,7 @@ static int zr364xx_probe(struct usb_interface *intf, if (cam->vdev == NULL) { info("cam->vdev: out of memory !"); kfree(cam); - return -ENODEV; + return -ENOMEM; } memcpy(cam->vdev, &zr364xx_template, sizeof(zr364xx_template)); video_set_drvdata(cam->vdev, cam); @@ -858,12 +859,13 @@ static int zr364xx_probe(struct usb_interface *intf, cam->brightness = 64; mutex_init(&cam->lock); - if (video_register_device(cam->vdev, VFL_TYPE_GRABBER, -1) == -1) { + err = video_register_device(cam->vdev, VFL_TYPE_GRABBER, -1); + if (err) { info("video_register_device failed"); video_device_release(cam->vdev); kfree(cam->buffer); kfree(cam); - return -ENODEV; + return err; } usb_set_intfdata(intf, cam); @@ -905,7 +907,7 @@ static struct usb_driver zr364xx_driver = { static int __init zr364xx_init(void) { int retval; - retval = usb_register(&zr364xx_driver) < 0; + retval = usb_register(&zr364xx_driver); if (retval) info("usb_register failed!"); else diff --git a/drivers/message/i2o/debug.c b/drivers/message/i2o/debug.c index 8abe45e49ad7..ce62d8bfe1c8 100644 --- a/drivers/message/i2o/debug.c +++ b/drivers/message/i2o/debug.c @@ -24,7 +24,7 @@ void i2o_report_status(const char *severity, const char *str, if (cmd == I2O_CMD_UTIL_EVT_REGISTER) return; // No status in this reply - printk(KERN_DEBUG "%s%s: ", severity, str); + printk("%s%s: ", severity, str); if (cmd < 0x1F) // Utility cmd i2o_report_util_cmd(cmd); @@ -32,7 +32,7 @@ void i2o_report_status(const char *severity, const char *str, else if (cmd >= 0xA0 && cmd <= 0xEF) // Executive cmd i2o_report_exec_cmd(cmd); else - printk(KERN_DEBUG "Cmd = %0#2x, ", cmd); // Other cmds + printk("Cmd = %0#2x, ", cmd); // Other cmds if (msg[0] & MSG_FAIL) { i2o_report_fail_status(req_status, msg); @@ -44,7 +44,7 @@ void i2o_report_status(const char *severity, const char *str, if (cmd < 0x1F || (cmd >= 0xA0 && cmd <= 0xEF)) i2o_report_common_dsc(detailed_status); else - printk(KERN_DEBUG " / DetailedStatus = %0#4x.\n", + printk(" / DetailedStatus = %0#4x.\n", detailed_status); } @@ -89,10 +89,10 @@ static void i2o_report_fail_status(u8 req_status, u32 * msg) }; if (req_status == I2O_FSC_TRANSPORT_UNKNOWN_FAILURE) - printk(KERN_DEBUG "TRANSPORT_UNKNOWN_FAILURE (%0#2x).\n", + printk("TRANSPORT_UNKNOWN_FAILURE (%0#2x).\n", req_status); else - printk(KERN_DEBUG "TRANSPORT_%s.\n", + printk("TRANSPORT_%s.\n", FAIL_STATUS[req_status & 0x0F]); /* Dump some details */ @@ -104,7 +104,7 @@ static void i2o_report_fail_status(u8 req_status, u32 * msg) printk(KERN_ERR " FailingHostUnit = 0x%04X, FailingIOP = 0x%03X\n", msg[5] >> 16, msg[5] & 0xFFF); - printk(KERN_ERR " Severity: 0x%02X ", (msg[4] >> 16) & 0xFF); + printk(KERN_ERR " Severity: 0x%02X\n", (msg[4] >> 16) & 0xFF); if (msg[4] & (1 << 16)) printk(KERN_DEBUG "(FormatError), " "this msg can never be delivered/processed.\n"); @@ -142,9 +142,9 @@ static void i2o_report_common_status(u8 req_status) }; if (req_status >= ARRAY_SIZE(REPLY_STATUS)) - printk(KERN_DEBUG "RequestStatus = %0#2x", req_status); + printk("RequestStatus = %0#2x", req_status); else - printk(KERN_DEBUG "%s", REPLY_STATUS[req_status]); + printk("%s", REPLY_STATUS[req_status]); } /* @@ -187,10 +187,10 @@ static void i2o_report_common_dsc(u16 detailed_status) }; if (detailed_status > I2O_DSC_DEVICE_NOT_AVAILABLE) - printk(KERN_DEBUG " / DetailedStatus = %0#4x.\n", + printk(" / DetailedStatus = %0#4x.\n", detailed_status); else - printk(KERN_DEBUG " / %s.\n", COMMON_DSC[detailed_status]); + printk(" / %s.\n", COMMON_DSC[detailed_status]); } /* @@ -200,49 +200,49 @@ static void i2o_report_util_cmd(u8 cmd) { switch (cmd) { case I2O_CMD_UTIL_NOP: - printk(KERN_DEBUG "UTIL_NOP, "); + printk("UTIL_NOP, "); break; case I2O_CMD_UTIL_ABORT: - printk(KERN_DEBUG "UTIL_ABORT, "); + printk("UTIL_ABORT, "); break; case I2O_CMD_UTIL_CLAIM: - printk(KERN_DEBUG "UTIL_CLAIM, "); + printk("UTIL_CLAIM, "); break; case I2O_CMD_UTIL_RELEASE: - printk(KERN_DEBUG "UTIL_CLAIM_RELEASE, "); + printk("UTIL_CLAIM_RELEASE, "); break; case I2O_CMD_UTIL_CONFIG_DIALOG: - printk(KERN_DEBUG "UTIL_CONFIG_DIALOG, "); + printk("UTIL_CONFIG_DIALOG, "); break; case I2O_CMD_UTIL_DEVICE_RESERVE: - printk(KERN_DEBUG "UTIL_DEVICE_RESERVE, "); + printk("UTIL_DEVICE_RESERVE, "); break; case I2O_CMD_UTIL_DEVICE_RELEASE: - printk(KERN_DEBUG "UTIL_DEVICE_RELEASE, "); + printk("UTIL_DEVICE_RELEASE, "); break; case I2O_CMD_UTIL_EVT_ACK: - printk(KERN_DEBUG "UTIL_EVENT_ACKNOWLEDGE, "); + printk("UTIL_EVENT_ACKNOWLEDGE, "); break; case I2O_CMD_UTIL_EVT_REGISTER: - printk(KERN_DEBUG "UTIL_EVENT_REGISTER, "); + printk("UTIL_EVENT_REGISTER, "); break; case I2O_CMD_UTIL_LOCK: - printk(KERN_DEBUG "UTIL_LOCK, "); + printk("UTIL_LOCK, "); break; case I2O_CMD_UTIL_LOCK_RELEASE: - printk(KERN_DEBUG "UTIL_LOCK_RELEASE, "); + printk("UTIL_LOCK_RELEASE, "); break; case I2O_CMD_UTIL_PARAMS_GET: - printk(KERN_DEBUG "UTIL_PARAMS_GET, "); + printk("UTIL_PARAMS_GET, "); break; case I2O_CMD_UTIL_PARAMS_SET: - printk(KERN_DEBUG "UTIL_PARAMS_SET, "); + printk("UTIL_PARAMS_SET, "); break; case I2O_CMD_UTIL_REPLY_FAULT_NOTIFY: - printk(KERN_DEBUG "UTIL_REPLY_FAULT_NOTIFY, "); + printk("UTIL_REPLY_FAULT_NOTIFY, "); break; default: - printk(KERN_DEBUG "Cmd = %0#2x, ", cmd); + printk("Cmd = %0#2x, ", cmd); } } @@ -253,106 +253,106 @@ static void i2o_report_exec_cmd(u8 cmd) { switch (cmd) { case I2O_CMD_ADAPTER_ASSIGN: - printk(KERN_DEBUG "EXEC_ADAPTER_ASSIGN, "); + printk("EXEC_ADAPTER_ASSIGN, "); break; case I2O_CMD_ADAPTER_READ: - printk(KERN_DEBUG "EXEC_ADAPTER_READ, "); + printk("EXEC_ADAPTER_READ, "); break; case I2O_CMD_ADAPTER_RELEASE: - printk(KERN_DEBUG "EXEC_ADAPTER_RELEASE, "); + printk("EXEC_ADAPTER_RELEASE, "); break; case I2O_CMD_BIOS_INFO_SET: - printk(KERN_DEBUG "EXEC_BIOS_INFO_SET, "); + printk("EXEC_BIOS_INFO_SET, "); break; case I2O_CMD_BOOT_DEVICE_SET: - printk(KERN_DEBUG "EXEC_BOOT_DEVICE_SET, "); + printk("EXEC_BOOT_DEVICE_SET, "); break; case I2O_CMD_CONFIG_VALIDATE: - printk(KERN_DEBUG "EXEC_CONFIG_VALIDATE, "); + printk("EXEC_CONFIG_VALIDATE, "); break; case I2O_CMD_CONN_SETUP: - printk(KERN_DEBUG "EXEC_CONN_SETUP, "); + printk("EXEC_CONN_SETUP, "); break; case I2O_CMD_DDM_DESTROY: - printk(KERN_DEBUG "EXEC_DDM_DESTROY, "); + printk("EXEC_DDM_DESTROY, "); break; case I2O_CMD_DDM_ENABLE: - printk(KERN_DEBUG "EXEC_DDM_ENABLE, "); + printk("EXEC_DDM_ENABLE, "); break; case I2O_CMD_DDM_QUIESCE: - printk(KERN_DEBUG "EXEC_DDM_QUIESCE, "); + printk("EXEC_DDM_QUIESCE, "); break; case I2O_CMD_DDM_RESET: - printk(KERN_DEBUG "EXEC_DDM_RESET, "); + printk("EXEC_DDM_RESET, "); break; case I2O_CMD_DDM_SUSPEND: - printk(KERN_DEBUG "EXEC_DDM_SUSPEND, "); + printk("EXEC_DDM_SUSPEND, "); break; case I2O_CMD_DEVICE_ASSIGN: - printk(KERN_DEBUG "EXEC_DEVICE_ASSIGN, "); + printk("EXEC_DEVICE_ASSIGN, "); break; case I2O_CMD_DEVICE_RELEASE: - printk(KERN_DEBUG "EXEC_DEVICE_RELEASE, "); + printk("EXEC_DEVICE_RELEASE, "); break; case I2O_CMD_HRT_GET: - printk(KERN_DEBUG "EXEC_HRT_GET, "); + printk("EXEC_HRT_GET, "); break; case I2O_CMD_ADAPTER_CLEAR: - printk(KERN_DEBUG "EXEC_IOP_CLEAR, "); + printk("EXEC_IOP_CLEAR, "); break; case I2O_CMD_ADAPTER_CONNECT: - printk(KERN_DEBUG "EXEC_IOP_CONNECT, "); + printk("EXEC_IOP_CONNECT, "); break; case I2O_CMD_ADAPTER_RESET: - printk(KERN_DEBUG "EXEC_IOP_RESET, "); + printk("EXEC_IOP_RESET, "); break; case I2O_CMD_LCT_NOTIFY: - printk(KERN_DEBUG "EXEC_LCT_NOTIFY, "); + printk("EXEC_LCT_NOTIFY, "); break; case I2O_CMD_OUTBOUND_INIT: - printk(KERN_DEBUG "EXEC_OUTBOUND_INIT, "); + printk("EXEC_OUTBOUND_INIT, "); break; case I2O_CMD_PATH_ENABLE: - printk(KERN_DEBUG "EXEC_PATH_ENABLE, "); + printk("EXEC_PATH_ENABLE, "); break; case I2O_CMD_PATH_QUIESCE: - printk(KERN_DEBUG "EXEC_PATH_QUIESCE, "); + printk("EXEC_PATH_QUIESCE, "); break; case I2O_CMD_PATH_RESET: - printk(KERN_DEBUG "EXEC_PATH_RESET, "); + printk("EXEC_PATH_RESET, "); break; case I2O_CMD_STATIC_MF_CREATE: - printk(KERN_DEBUG "EXEC_STATIC_MF_CREATE, "); + printk("EXEC_STATIC_MF_CREATE, "); break; case I2O_CMD_STATIC_MF_RELEASE: - printk(KERN_DEBUG "EXEC_STATIC_MF_RELEASE, "); + printk("EXEC_STATIC_MF_RELEASE, "); break; case I2O_CMD_STATUS_GET: - printk(KERN_DEBUG "EXEC_STATUS_GET, "); + printk("EXEC_STATUS_GET, "); break; case I2O_CMD_SW_DOWNLOAD: - printk(KERN_DEBUG "EXEC_SW_DOWNLOAD, "); + printk("EXEC_SW_DOWNLOAD, "); break; case I2O_CMD_SW_UPLOAD: - printk(KERN_DEBUG "EXEC_SW_UPLOAD, "); + printk("EXEC_SW_UPLOAD, "); break; case I2O_CMD_SW_REMOVE: - printk(KERN_DEBUG "EXEC_SW_REMOVE, "); + printk("EXEC_SW_REMOVE, "); break; case I2O_CMD_SYS_ENABLE: - printk(KERN_DEBUG "EXEC_SYS_ENABLE, "); + printk("EXEC_SYS_ENABLE, "); break; case I2O_CMD_SYS_MODIFY: - printk(KERN_DEBUG "EXEC_SYS_MODIFY, "); + printk("EXEC_SYS_MODIFY, "); break; case I2O_CMD_SYS_QUIESCE: - printk(KERN_DEBUG "EXEC_SYS_QUIESCE, "); + printk("EXEC_SYS_QUIESCE, "); break; case I2O_CMD_SYS_TAB_SET: - printk(KERN_DEBUG "EXEC_SYS_TAB_SET, "); + printk("EXEC_SYS_TAB_SET, "); break; default: - printk(KERN_DEBUG "Cmd = %#02x, ", cmd); + printk("Cmd = %#02x, ", cmd); } } @@ -361,28 +361,28 @@ void i2o_debug_state(struct i2o_controller *c) printk(KERN_INFO "%s: State = ", c->name); switch (((i2o_status_block *) c->status_block.virt)->iop_state) { case 0x01: - printk(KERN_DEBUG "INIT\n"); + printk("INIT\n"); break; case 0x02: - printk(KERN_DEBUG "RESET\n"); + printk("RESET\n"); break; case 0x04: - printk(KERN_DEBUG "HOLD\n"); + printk("HOLD\n"); break; case 0x05: - printk(KERN_DEBUG "READY\n"); + printk("READY\n"); break; case 0x08: - printk(KERN_DEBUG "OPERATIONAL\n"); + printk("OPERATIONAL\n"); break; case 0x10: - printk(KERN_DEBUG "FAILED\n"); + printk("FAILED\n"); break; case 0x11: - printk(KERN_DEBUG "FAULTED\n"); + printk("FAULTED\n"); break; default: - printk(KERN_DEBUG "%x (unknown !!)\n", + printk("%x (unknown !!)\n", ((i2o_status_block *) c->status_block.virt)->iop_state); } }; diff --git a/drivers/message/i2o/exec-osm.c b/drivers/message/i2o/exec-osm.c index c13b9321e7ab..8c83ee3b0920 100644 --- a/drivers/message/i2o/exec-osm.c +++ b/drivers/message/i2o/exec-osm.c @@ -131,8 +131,10 @@ int i2o_msg_post_wait_mem(struct i2o_controller *c, struct i2o_message *msg, int rc = 0; wait = i2o_exec_wait_alloc(); - if (!wait) + if (!wait) { + i2o_msg_nop(c, msg); return -ENOMEM; + } if (tcntxt == 0xffffffff) tcntxt = 0x80000000; @@ -337,6 +339,8 @@ static int i2o_exec_probe(struct device *dev) rc = device_create_file(dev, &dev_attr_product_id); if (rc) goto err_vid; + i2o_dev->iop->exec = i2o_dev; + return 0; err_vid: diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c index b17c4b2bc9ef..64a52bd7544a 100644 --- a/drivers/message/i2o/i2o_block.c +++ b/drivers/message/i2o/i2o_block.c @@ -215,7 +215,7 @@ static int i2o_block_device_lock(struct i2o_device *dev, u32 media_id) struct i2o_message *msg; msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET); - if (IS_ERR(msg) == I2O_QUEUE_EMPTY) + if (IS_ERR(msg)) return PTR_ERR(msg); msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0); diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c index 8ba275a12773..84e046e94f5f 100644 --- a/drivers/message/i2o/i2o_config.c +++ b/drivers/message/i2o/i2o_config.c @@ -554,8 +554,6 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, return -ENXIO; } - msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); - sb = c->status_block.virt; if (get_user(size, &user_msg[0])) { @@ -573,24 +571,30 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, size <<= 2; // Convert to bytes + msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); + if (IS_ERR(msg)) + return PTR_ERR(msg); + + rcode = -EFAULT; /* Copy in the user's I2O command */ if (copy_from_user(msg, user_msg, size)) { osm_warn("unable to copy user message\n"); - return -EFAULT; + goto out; } i2o_dump_message(msg); if (get_user(reply_size, &user_reply[0]) < 0) - return -EFAULT; + goto out; reply_size >>= 16; reply_size <<= 2; + rcode = -ENOMEM; reply = kzalloc(reply_size, GFP_KERNEL); if (!reply) { printk(KERN_WARNING "%s: Could not allocate reply buffer\n", c->name); - return -ENOMEM; + goto out; } sg_offset = (msg->u.head[0] >> 4) & 0x0f; @@ -661,13 +665,14 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, } rcode = i2o_msg_post_wait(c, msg, 60); + msg = NULL; if (rcode) { reply[4] = ((u32) rcode) << 24; goto sg_list_cleanup; } if (sg_offset) { - u32 msg[I2O_OUTBOUND_MSG_FRAME_SIZE]; + u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; /* Copy back the Scatter Gather buffers back to user space */ u32 j; // TODO 64bit fix @@ -675,7 +680,7 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, int sg_size; // re-acquire the original message to handle correctly the sg copy operation - memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); + memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); // get user msg size in u32s if (get_user(size, &user_msg[0])) { rcode = -EFAULT; @@ -684,7 +689,7 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, size = size >> 16; size *= 4; /* Copy in the user's I2O command */ - if (copy_from_user(msg, user_msg, size)) { + if (copy_from_user(rmsg, user_msg, size)) { rcode = -EFAULT; goto sg_list_cleanup; } @@ -692,7 +697,7 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, (size - sg_offset * 4) / sizeof(struct sg_simple_element); // TODO 64bit fix - sg = (struct sg_simple_element *)(msg + sg_offset); + sg = (struct sg_simple_element *)(rmsg + sg_offset); for (j = 0; j < sg_count; j++) { /* Copy out the SG list to user's buffer if necessary */ if (! @@ -714,7 +719,7 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, } } - sg_list_cleanup: +sg_list_cleanup: /* Copy back the reply to user space */ if (reply_size) { // we wrote our own values for context - now restore the user supplied ones @@ -723,7 +728,6 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, "%s: Could not copy message context FROM user\n", c->name); rcode = -EFAULT; - goto sg_list_cleanup; } if (copy_to_user(user_reply, reply, reply_size)) { printk(KERN_WARNING @@ -731,12 +735,14 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, rcode = -EFAULT; } } - for (i = 0; i < sg_index; i++) i2o_dma_free(&c->pdev->dev, &sg_list[i]); - cleanup: +cleanup: kfree(reply); +out: + if (msg) + i2o_msg_nop(c, msg); return rcode; } @@ -793,8 +799,6 @@ static int i2o_cfg_passthru(unsigned long arg) return -ENXIO; } - msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); - sb = c->status_block.virt; if (get_user(size, &user_msg[0])) @@ -810,12 +814,17 @@ static int i2o_cfg_passthru(unsigned long arg) size <<= 2; // Convert to bytes + msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); + if (IS_ERR(msg)) + return PTR_ERR(msg); + + rcode = -EFAULT; /* Copy in the user's I2O command */ if (copy_from_user(msg, user_msg, size)) - return -EFAULT; + goto out; if (get_user(reply_size, &user_reply[0]) < 0) - return -EFAULT; + goto out; reply_size >>= 16; reply_size <<= 2; @@ -824,7 +833,8 @@ static int i2o_cfg_passthru(unsigned long arg) if (!reply) { printk(KERN_WARNING "%s: Could not allocate reply buffer\n", c->name); - return -ENOMEM; + rcode = -ENOMEM; + goto out; } sg_offset = (msg->u.head[0] >> 4) & 0x0f; @@ -891,13 +901,14 @@ static int i2o_cfg_passthru(unsigned long arg) } rcode = i2o_msg_post_wait(c, msg, 60); + msg = NULL; if (rcode) { reply[4] = ((u32) rcode) << 24; goto sg_list_cleanup; } if (sg_offset) { - u32 msg[128]; + u32 rmsg[128]; /* Copy back the Scatter Gather buffers back to user space */ u32 j; // TODO 64bit fix @@ -905,7 +916,7 @@ static int i2o_cfg_passthru(unsigned long arg) int sg_size; // re-acquire the original message to handle correctly the sg copy operation - memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); + memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); // get user msg size in u32s if (get_user(size, &user_msg[0])) { rcode = -EFAULT; @@ -914,7 +925,7 @@ static int i2o_cfg_passthru(unsigned long arg) size = size >> 16; size *= 4; /* Copy in the user's I2O command */ - if (copy_from_user(msg, user_msg, size)) { + if (copy_from_user(rmsg, user_msg, size)) { rcode = -EFAULT; goto sg_list_cleanup; } @@ -922,7 +933,7 @@ static int i2o_cfg_passthru(unsigned long arg) (size - sg_offset * 4) / sizeof(struct sg_simple_element); // TODO 64bit fix - sg = (struct sg_simple_element *)(msg + sg_offset); + sg = (struct sg_simple_element *)(rmsg + sg_offset); for (j = 0; j < sg_count; j++) { /* Copy out the SG list to user's buffer if necessary */ if (! @@ -944,7 +955,7 @@ static int i2o_cfg_passthru(unsigned long arg) } } - sg_list_cleanup: +sg_list_cleanup: /* Copy back the reply to user space */ if (reply_size) { // we wrote our own values for context - now restore the user supplied ones @@ -964,8 +975,11 @@ static int i2o_cfg_passthru(unsigned long arg) for (i = 0; i < sg_index; i++) kfree(sg_list[i]); - cleanup: +cleanup: kfree(reply); +out: + if (msg) + i2o_msg_nop(c, msg); return rcode; } #endif diff --git a/drivers/mfd/mcp-core.c b/drivers/mfd/mcp-core.c index 75f401d52fda..b4ed57e02729 100644 --- a/drivers/mfd/mcp-core.c +++ b/drivers/mfd/mcp-core.c @@ -200,9 +200,8 @@ struct mcp *mcp_host_alloc(struct device *parent, size_t size) { struct mcp *mcp; - mcp = kmalloc(sizeof(struct mcp) + size, GFP_KERNEL); + mcp = kzalloc(sizeof(struct mcp) + size, GFP_KERNEL); if (mcp) { - memset(mcp, 0, sizeof(struct mcp) + size); spin_lock_init(&mcp->lock); mcp->attached_device.parent = parent; mcp->attached_device.bus = &mcp_bus_type; diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c index 149810a084f5..e03f1bcd4f9f 100644 --- a/drivers/mfd/ucb1x00-core.c +++ b/drivers/mfd/ucb1x00-core.c @@ -484,12 +484,11 @@ static int ucb1x00_probe(struct mcp *mcp) goto err_disable; } - ucb = kmalloc(sizeof(struct ucb1x00), GFP_KERNEL); + ucb = kzalloc(sizeof(struct ucb1x00), GFP_KERNEL); ret = -ENOMEM; if (!ucb) goto err_disable; - memset(ucb, 0, sizeof(struct ucb1x00)); ucb->cdev.class = &ucb1x00_class; ucb->cdev.dev = &mcp->attached_device; diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c index 38e815a2e871..fdbaa776f249 100644 --- a/drivers/mfd/ucb1x00-ts.c +++ b/drivers/mfd/ucb1x00-ts.c @@ -209,6 +209,7 @@ static int ucb1x00_thread(void *_ts) DECLARE_WAITQUEUE(wait, tsk); int valid = 0; + set_freezable(); add_wait_queue(&ts->irq_wait, &wait); while (!kthread_should_stop()) { unsigned int x, y, p; diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index a92b8728b90c..1d516f24ba53 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -10,7 +10,7 @@ if MISC_DEVICES config IBM_ASM tristate "Device driver for IBM RSA service processor" - depends on X86 && PCI && EXPERIMENTAL + depends on X86 && PCI && INPUT && EXPERIMENTAL ---help--- This option enables device driver support for in-band access to the IBM RSA (Condor) service processor in eServer xSeries systems. diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c index 7798f590e5aa..f75306059971 100644 --- a/drivers/misc/asus-laptop.c +++ b/drivers/misc/asus-laptop.c @@ -979,10 +979,9 @@ static int asus_hotk_add(struct acpi_device *device) printk(ASUS_NOTICE "Asus Laptop Support version %s\n", ASUS_LAPTOP_VERSION); - hotk = kmalloc(sizeof(struct asus_hotk), GFP_KERNEL); + hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL); if (!hotk) return -ENOMEM; - memset(hotk, 0, sizeof(struct asus_hotk)); hotk->handle = device->handle; strcpy(acpi_device_name(device), ASUS_HOTK_DEVICE_NAME); diff --git a/drivers/misc/ibmasm/command.c b/drivers/misc/ibmasm/command.c index 07a085ccbd5b..6497872df524 100644 --- a/drivers/misc/ibmasm/command.c +++ b/drivers/misc/ibmasm/command.c @@ -18,7 +18,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ @@ -41,18 +41,16 @@ struct command *ibmasm_new_command(struct service_processor *sp, size_t buffer_s if (buffer_size > IBMASM_CMD_MAX_BUFFER_SIZE) return NULL; - cmd = kmalloc(sizeof(struct command), GFP_KERNEL); + cmd = kzalloc(sizeof(struct command), GFP_KERNEL); if (cmd == NULL) return NULL; - memset(cmd, 0, sizeof(*cmd)); - cmd->buffer = kmalloc(buffer_size, GFP_KERNEL); + cmd->buffer = kzalloc(buffer_size, GFP_KERNEL); if (cmd->buffer == NULL) { kfree(cmd); return NULL; } - memset(cmd->buffer, 0, buffer_size); cmd->buffer_size = buffer_size; kobject_init(&cmd->kobj); @@ -72,7 +70,7 @@ struct command *ibmasm_new_command(struct service_processor *sp, size_t buffer_s static void free_command(struct kobject *kobj) { struct command *cmd = to_command(kobj); - + list_del(&cmd->queue_node); atomic_dec(&command_count); dbg("command count: %d\n", atomic_read(&command_count)); @@ -113,14 +111,14 @@ static inline void do_exec_command(struct service_processor *sp) exec_next_command(sp); } } - + /** * exec_command * send a command to a service processor * Commands are executed sequentially. One command (sp->current_command) * is sent to the service processor. Once the interrupt handler gets a * message of type command_response, the message is copied into - * the current commands buffer, + * the current commands buffer, */ void ibmasm_exec_command(struct service_processor *sp, struct command *cmd) { @@ -160,7 +158,7 @@ static void exec_next_command(struct service_processor *sp) } } -/** +/** * Sleep until a command has failed or a response has been received * and the command status been updated by the interrupt handler. * (see receive_response). @@ -182,8 +180,8 @@ void ibmasm_receive_command_response(struct service_processor *sp, void *respons { struct command *cmd = sp->current_command; - if (!sp->current_command) - return; + if (!sp->current_command) + return; memcpy_fromio(cmd->buffer, response, min(size, cmd->buffer_size)); cmd->status = IBMASM_CMD_COMPLETE; diff --git a/drivers/misc/ibmasm/dot_command.c b/drivers/misc/ibmasm/dot_command.c index 13c52f866e2e..3dd2dfb8da17 100644 --- a/drivers/misc/ibmasm/dot_command.c +++ b/drivers/misc/ibmasm/dot_command.c @@ -17,7 +17,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ @@ -44,11 +44,11 @@ void ibmasm_receive_message(struct service_processor *sp, void *message, int mes size = message_size; switch (header->type) { - case sp_event: + case sp_event: ibmasm_receive_event(sp, message, size); break; case sp_command_response: - ibmasm_receive_command_response(sp, message, size); + ibmasm_receive_command_response(sp, message, size); break; case sp_heartbeat: ibmasm_receive_heartbeat(sp, message, size); @@ -95,7 +95,7 @@ int ibmasm_send_driver_vpd(struct service_processor *sp) strcat(vpd_data, IBMASM_DRIVER_VPD); vpd_data[10] = 0; vpd_data[15] = 0; - + ibmasm_exec_command(sp, command); ibmasm_wait_for_response(command, IBMASM_CMD_TIMEOUT_NORMAL); @@ -118,7 +118,7 @@ struct os_state_command { * During driver init this function is called with os state "up". * This causes the service processor to start sending heartbeats the * driver. - * During driver exit the function is called with os state "down", + * During driver exit the function is called with os state "down", * causing the service processor to stop the heartbeats. */ int ibmasm_send_os_state(struct service_processor *sp, int os_state) diff --git a/drivers/misc/ibmasm/dot_command.h b/drivers/misc/ibmasm/dot_command.h index 2d21c2741b6a..6cbba1afef35 100644 --- a/drivers/misc/ibmasm/dot_command.h +++ b/drivers/misc/ibmasm/dot_command.h @@ -17,7 +17,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ diff --git a/drivers/misc/ibmasm/event.c b/drivers/misc/ibmasm/event.c index fe1e819235a4..fda6a4d3bf23 100644 --- a/drivers/misc/ibmasm/event.c +++ b/drivers/misc/ibmasm/event.c @@ -18,7 +18,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ @@ -51,7 +51,7 @@ static void wake_up_event_readers(struct service_processor *sp) * event readers. * There is no reader marker in the buffer, therefore readers are * responsible for keeping up with the writer, or they will loose events. - */ + */ void ibmasm_receive_event(struct service_processor *sp, void *data, unsigned int data_size) { struct event_buffer *buffer = sp->event_buffer; @@ -77,13 +77,13 @@ void ibmasm_receive_event(struct service_processor *sp, void *data, unsigned int static inline int event_available(struct event_buffer *b, struct event_reader *r) { - return (r->next_serial_number < b->next_serial_number); + return (r->next_serial_number < b->next_serial_number); } /** * get_next_event * Called by event readers (initiated from user space through the file - * system). + * system). * Sleeps until a new event is available. */ int ibmasm_get_next_event(struct service_processor *sp, struct event_reader *reader) diff --git a/drivers/misc/ibmasm/heartbeat.c b/drivers/misc/ibmasm/heartbeat.c index 7fd7a43e38de..3036e785b3e4 100644 --- a/drivers/misc/ibmasm/heartbeat.c +++ b/drivers/misc/ibmasm/heartbeat.c @@ -18,7 +18,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ diff --git a/drivers/misc/ibmasm/i2o.h b/drivers/misc/ibmasm/i2o.h index 958c957a5e75..bf2c738d2b72 100644 --- a/drivers/misc/ibmasm/i2o.h +++ b/drivers/misc/ibmasm/i2o.h @@ -17,7 +17,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ @@ -26,9 +26,9 @@ struct i2o_header { u8 version; u8 message_flags; u16 message_size; - u8 target; + u8 target; u8 initiator_and_target; - u8 initiator; + u8 initiator; u8 function; u32 initiator_context; }; @@ -64,12 +64,12 @@ static inline unsigned short outgoing_message_size(unsigned int data_size) size = sizeof(struct i2o_header) + data_size; i2o_size = size / sizeof(u32); - + if (size % sizeof(u32)) i2o_size++; return i2o_size; -} +} static inline u32 incoming_data_size(struct i2o_message *i2o_message) { diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h index 48d5abebfc30..de860bc6d3f5 100644 --- a/drivers/misc/ibmasm/ibmasm.h +++ b/drivers/misc/ibmasm/ibmasm.h @@ -18,7 +18,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ @@ -58,8 +58,8 @@ static inline char *get_timestamp(char *buf) return buf; } -#define IBMASM_CMD_PENDING 0 -#define IBMASM_CMD_COMPLETE 1 +#define IBMASM_CMD_PENDING 0 +#define IBMASM_CMD_COMPLETE 1 #define IBMASM_CMD_FAILED 2 #define IBMASM_CMD_TIMEOUT_NORMAL 45 @@ -163,55 +163,55 @@ struct service_processor { }; /* command processing */ -extern struct command *ibmasm_new_command(struct service_processor *sp, size_t buffer_size); -extern void ibmasm_exec_command(struct service_processor *sp, struct command *cmd); -extern void ibmasm_wait_for_response(struct command *cmd, int timeout); -extern void ibmasm_receive_command_response(struct service_processor *sp, void *response, size_t size); +struct command *ibmasm_new_command(struct service_processor *sp, size_t buffer_size); +void ibmasm_exec_command(struct service_processor *sp, struct command *cmd); +void ibmasm_wait_for_response(struct command *cmd, int timeout); +void ibmasm_receive_command_response(struct service_processor *sp, void *response, size_t size); /* event processing */ -extern int ibmasm_event_buffer_init(struct service_processor *sp); -extern void ibmasm_event_buffer_exit(struct service_processor *sp); -extern void ibmasm_receive_event(struct service_processor *sp, void *data, unsigned int data_size); -extern void ibmasm_event_reader_register(struct service_processor *sp, struct event_reader *reader); -extern void ibmasm_event_reader_unregister(struct service_processor *sp, struct event_reader *reader); -extern int ibmasm_get_next_event(struct service_processor *sp, struct event_reader *reader); -extern void ibmasm_cancel_next_event(struct event_reader *reader); +int ibmasm_event_buffer_init(struct service_processor *sp); +void ibmasm_event_buffer_exit(struct service_processor *sp); +void ibmasm_receive_event(struct service_processor *sp, void *data, unsigned int data_size); +void ibmasm_event_reader_register(struct service_processor *sp, struct event_reader *reader); +void ibmasm_event_reader_unregister(struct service_processor *sp, struct event_reader *reader); +int ibmasm_get_next_event(struct service_processor *sp, struct event_reader *reader); +void ibmasm_cancel_next_event(struct event_reader *reader); /* heartbeat - from SP to OS */ -extern void ibmasm_register_panic_notifier(void); -extern void ibmasm_unregister_panic_notifier(void); -extern int ibmasm_heartbeat_init(struct service_processor *sp); -extern void ibmasm_heartbeat_exit(struct service_processor *sp); -extern void ibmasm_receive_heartbeat(struct service_processor *sp, void *message, size_t size); +void ibmasm_register_panic_notifier(void); +void ibmasm_unregister_panic_notifier(void); +int ibmasm_heartbeat_init(struct service_processor *sp); +void ibmasm_heartbeat_exit(struct service_processor *sp); +void ibmasm_receive_heartbeat(struct service_processor *sp, void *message, size_t size); /* reverse heartbeat - from OS to SP */ -extern void ibmasm_init_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb); -extern int ibmasm_start_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb); -extern void ibmasm_stop_reverse_heartbeat(struct reverse_heartbeat *rhb); +void ibmasm_init_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb); +int ibmasm_start_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb); +void ibmasm_stop_reverse_heartbeat(struct reverse_heartbeat *rhb); /* dot commands */ -extern void ibmasm_receive_message(struct service_processor *sp, void *data, int data_size); -extern int ibmasm_send_driver_vpd(struct service_processor *sp); -extern int ibmasm_send_os_state(struct service_processor *sp, int os_state); +void ibmasm_receive_message(struct service_processor *sp, void *data, int data_size); +int ibmasm_send_driver_vpd(struct service_processor *sp); +int ibmasm_send_os_state(struct service_processor *sp, int os_state); /* low level message processing */ -extern int ibmasm_send_i2o_message(struct service_processor *sp); -extern irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id); +int ibmasm_send_i2o_message(struct service_processor *sp); +irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id); /* remote console */ -extern void ibmasm_handle_mouse_interrupt(struct service_processor *sp); -extern int ibmasm_init_remote_input_dev(struct service_processor *sp); -extern void ibmasm_free_remote_input_dev(struct service_processor *sp); +void ibmasm_handle_mouse_interrupt(struct service_processor *sp); +int ibmasm_init_remote_input_dev(struct service_processor *sp); +void ibmasm_free_remote_input_dev(struct service_processor *sp); /* file system */ -extern int ibmasmfs_register(void); -extern void ibmasmfs_unregister(void); -extern void ibmasmfs_add_sp(struct service_processor *sp); +int ibmasmfs_register(void); +void ibmasmfs_unregister(void); +void ibmasmfs_add_sp(struct service_processor *sp); /* uart */ #ifdef CONFIG_SERIAL_8250 -extern void ibmasm_register_uart(struct service_processor *sp); -extern void ibmasm_unregister_uart(struct service_processor *sp); +void ibmasm_register_uart(struct service_processor *sp); +void ibmasm_unregister_uart(struct service_processor *sp); #else #define ibmasm_register_uart(sp) do { } while(0) #define ibmasm_unregister_uart(sp) do { } while(0) diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index c436d3de8b8b..22a7e8ba211d 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -17,12 +17,12 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ /* - * Parts of this code are based on an article by Jonathan Corbet + * Parts of this code are based on an article by Jonathan Corbet * that appeared in Linux Weekly News. */ @@ -55,22 +55,22 @@ * For each service processor the following files are created: * * command: execute dot commands - * write: execute a dot command on the service processor - * read: return the result of a previously executed dot command + * write: execute a dot command on the service processor + * read: return the result of a previously executed dot command * * events: listen for service processor events - * read: sleep (interruptible) until an event occurs + * read: sleep (interruptible) until an event occurs * write: wakeup sleeping event listener * * reverse_heartbeat: send a heartbeat to the service processor - * read: sleep (interruptible) until the reverse heartbeat fails + * read: sleep (interruptible) until the reverse heartbeat fails * write: wakeup sleeping heartbeat listener * * remote_video/width * remote_video/height * remote_video/width: control remote display settings - * write: set value - * read: read value + * write: set value + * read: read value */ #include <linux/fs.h> @@ -155,7 +155,7 @@ static struct inode *ibmasmfs_make_inode(struct super_block *sb, int mode) static struct dentry *ibmasmfs_create_file (struct super_block *sb, struct dentry *parent, - const char *name, + const char *name, const struct file_operations *fops, void *data, int mode) @@ -261,7 +261,7 @@ static int command_file_close(struct inode *inode, struct file *file) struct ibmasmfs_command_data *command_data = file->private_data; if (command_data->command) - command_put(command_data->command); + command_put(command_data->command); kfree(command_data); return 0; @@ -348,7 +348,7 @@ static ssize_t command_file_write(struct file *file, const char __user *ubuff, s static int event_file_open(struct inode *inode, struct file *file) { struct ibmasmfs_event_data *event_data; - struct service_processor *sp; + struct service_processor *sp; if (!inode->i_private) return -ENODEV; @@ -563,17 +563,16 @@ static ssize_t remote_settings_file_write(struct file *file, const char __user * if (*offset != 0) return 0; - buff = kmalloc (count + 1, GFP_KERNEL); + buff = kzalloc (count + 1, GFP_KERNEL); if (!buff) return -ENOMEM; - memset(buff, 0x0, count + 1); if (copy_from_user(buff, ubuff, count)) { kfree(buff); return -EFAULT; } - + value = simple_strtoul(buff, NULL, 10); writel(value, address); kfree(buff); diff --git a/drivers/misc/ibmasm/lowlevel.c b/drivers/misc/ibmasm/lowlevel.c index a3c589b7cbfa..4b2398e27fd5 100644 --- a/drivers/misc/ibmasm/lowlevel.c +++ b/drivers/misc/ibmasm/lowlevel.c @@ -17,7 +17,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ diff --git a/drivers/misc/ibmasm/lowlevel.h b/drivers/misc/ibmasm/lowlevel.h index e5ed59c589aa..766766523a60 100644 --- a/drivers/misc/ibmasm/lowlevel.h +++ b/drivers/misc/ibmasm/lowlevel.h @@ -17,7 +17,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ @@ -48,9 +48,9 @@ #define INTR_CONTROL_REGISTER 0x13A4 #define SCOUT_COM_A_BASE 0x0000 -#define SCOUT_COM_B_BASE 0x0100 -#define SCOUT_COM_C_BASE 0x0200 -#define SCOUT_COM_D_BASE 0x0300 +#define SCOUT_COM_B_BASE 0x0100 +#define SCOUT_COM_C_BASE 0x0200 +#define SCOUT_COM_D_BASE 0x0300 static inline int sp_interrupt_pending(void __iomem *base_address) { @@ -86,12 +86,12 @@ static inline void disable_sp_interrupts(void __iomem *base_address) static inline void enable_uart_interrupts(void __iomem *base_address) { - ibmasm_enable_interrupts(base_address, UART_INTR_MASK); + ibmasm_enable_interrupts(base_address, UART_INTR_MASK); } static inline void disable_uart_interrupts(void __iomem *base_address) { - ibmasm_disable_interrupts(base_address, UART_INTR_MASK); + ibmasm_disable_interrupts(base_address, UART_INTR_MASK); } #define valid_mfa(mfa) ( (mfa) != NO_MFAS_AVAILABLE ) @@ -111,7 +111,7 @@ static inline u32 get_mfa_outbound(void __iomem *base_address) static inline void set_mfa_outbound(void __iomem *base_address, u32 mfa) { - writel(mfa, base_address + OUTBOUND_QUEUE_PORT); + writel(mfa, base_address + OUTBOUND_QUEUE_PORT); } static inline u32 get_mfa_inbound(void __iomem *base_address) @@ -126,7 +126,7 @@ static inline u32 get_mfa_inbound(void __iomem *base_address) static inline void set_mfa_inbound(void __iomem *base_address, u32 mfa) { - writel(mfa, base_address + INBOUND_QUEUE_PORT); + writel(mfa, base_address + INBOUND_QUEUE_PORT); } static inline struct i2o_message *get_i2o_message(void __iomem *base_address, u32 mfa) diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c index 2f3bddfab937..4f9d4a9da983 100644 --- a/drivers/misc/ibmasm/module.c +++ b/drivers/misc/ibmasm/module.c @@ -18,9 +18,9 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * - * This driver is based on code originally written by Pete Reynolds + * This driver is based on code originally written by Pete Reynolds * and others. * */ @@ -30,13 +30,13 @@ * * 1) When loaded it sends a message to the service processor, * indicating that an OS is * running. This causes the service processor - * to send periodic heartbeats to the OS. + * to send periodic heartbeats to the OS. * * 2) Answers the periodic heartbeats sent by the service processor. * Failure to do so would result in system reboot. * * 3) Acts as a pass through for dot commands sent from user applications. - * The interface for this is the ibmasmfs file system. + * The interface for this is the ibmasmfs file system. * * 4) Allows user applications to register for event notification. Events * are sent to the driver through interrupts. They can be read from user @@ -77,13 +77,12 @@ static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_devi /* vnc client won't work without bus-mastering */ pci_set_master(pdev); - sp = kmalloc(sizeof(struct service_processor), GFP_KERNEL); + sp = kzalloc(sizeof(struct service_processor), GFP_KERNEL); if (sp == NULL) { dev_err(&pdev->dev, "Failed to allocate memory\n"); result = -ENOMEM; goto error_kmalloc; } - memset(sp, 0, sizeof(struct service_processor)); spin_lock_init(&sp->lock); INIT_LIST_HEAD(&sp->command_queue); @@ -105,7 +104,7 @@ static int __devinit ibmasm_init_one(struct pci_dev *pdev, const struct pci_devi } sp->irq = pdev->irq; - sp->base_address = ioremap(pci_resource_start(pdev, 0), + sp->base_address = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); if (sp->base_address == 0) { dev_err(sp->dev, "Failed to ioremap pci memory\n"); diff --git a/drivers/misc/ibmasm/r_heartbeat.c b/drivers/misc/ibmasm/r_heartbeat.c index f8fdb2d5417e..bec9e2c44bef 100644 --- a/drivers/misc/ibmasm/r_heartbeat.c +++ b/drivers/misc/ibmasm/r_heartbeat.c @@ -16,7 +16,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ @@ -36,10 +36,10 @@ static struct { unsigned char command[3]; } rhb_dot_cmd = { .header = { - .type = sp_read, + .type = sp_read, .command_size = 3, .data_size = 0, - .status = 0 + .status = 0 }, .command = { 4, 3, 6 } }; @@ -76,9 +76,9 @@ int ibmasm_start_reverse_heartbeat(struct service_processor *sp, struct reverse_ if (cmd->status != IBMASM_CMD_COMPLETE) times_failed++; - wait_event_interruptible_timeout(rhb->wait, + wait_event_interruptible_timeout(rhb->wait, rhb->stopped, - REVERSE_HEARTBEAT_TIMEOUT * HZ); + REVERSE_HEARTBEAT_TIMEOUT * HZ); if (signal_pending(current) || rhb->stopped) { result = -EINTR; diff --git a/drivers/misc/ibmasm/remote.c b/drivers/misc/ibmasm/remote.c index a40fda6c402c..0550ce075fc4 100644 --- a/drivers/misc/ibmasm/remote.c +++ b/drivers/misc/ibmasm/remote.c @@ -28,11 +28,10 @@ #include "ibmasm.h" #include "remote.h" -static int xmax = 1600; -static int ymax = 1200; +#define MOUSE_X_MAX 1600 +#define MOUSE_Y_MAX 1200 - -static unsigned short xlate_high[XLATE_SIZE] = { +static const unsigned short xlate_high[XLATE_SIZE] = { [KEY_SYM_ENTER & 0xff] = KEY_ENTER, [KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH, [KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK, @@ -81,7 +80,8 @@ static unsigned short xlate_high[XLATE_SIZE] = { [KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK, [KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK, }; -static unsigned short xlate[XLATE_SIZE] = { + +static const unsigned short xlate[XLATE_SIZE] = { [NO_KEYCODE] = KEY_RESERVED, [KEY_SYM_SPACE] = KEY_SPACE, [KEY_SYM_TILDE] = KEY_GRAVE, [KEY_SYM_BKTIC] = KEY_GRAVE, @@ -133,19 +133,16 @@ static unsigned short xlate[XLATE_SIZE] = { [KEY_SYM_Z] = KEY_Z, [KEY_SYM_z] = KEY_Z, }; -static char remote_mouse_name[] = "ibmasm RSA I remote mouse"; -static char remote_keybd_name[] = "ibmasm RSA I remote keyboard"; - static void print_input(struct remote_input *input) { if (input->type == INPUT_TYPE_MOUSE) { unsigned char buttons = input->mouse_buttons; dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n", input->data.mouse.x, input->data.mouse.y, - (buttons)?" -- buttons:":"", - (buttons & REMOTE_BUTTON_LEFT)?"left ":"", - (buttons & REMOTE_BUTTON_MIDDLE)?"middle ":"", - (buttons & REMOTE_BUTTON_RIGHT)?"right":"" + (buttons) ? " -- buttons:" : "", + (buttons & REMOTE_BUTTON_LEFT) ? "left " : "", + (buttons & REMOTE_BUTTON_MIDDLE) ? "middle " : "", + (buttons & REMOTE_BUTTON_RIGHT) ? "right" : "" ); } else { dbg("remote keypress (code, flag, down):" @@ -180,7 +177,7 @@ static void send_keyboard_event(struct input_dev *dev, key = xlate_high[code & 0xff]; else key = xlate[code]; - input_report_key(dev, key, (input->data.keyboard.key_down) ? 1 : 0); + input_report_key(dev, key, input->data.keyboard.key_down); input_sync(dev); } @@ -228,20 +225,22 @@ int ibmasm_init_remote_input_dev(struct service_processor *sp) mouse_dev->id.vendor = pdev->vendor; mouse_dev->id.product = pdev->device; mouse_dev->id.version = 1; + mouse_dev->dev.parent = sp->dev; mouse_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); mouse_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE); set_bit(BTN_TOUCH, mouse_dev->keybit); - mouse_dev->name = remote_mouse_name; - input_set_abs_params(mouse_dev, ABS_X, 0, xmax, 0, 0); - input_set_abs_params(mouse_dev, ABS_Y, 0, ymax, 0, 0); + mouse_dev->name = "ibmasm RSA I remote mouse"; + input_set_abs_params(mouse_dev, ABS_X, 0, MOUSE_X_MAX, 0, 0); + input_set_abs_params(mouse_dev, ABS_Y, 0, MOUSE_Y_MAX, 0, 0); - mouse_dev->id.bustype = BUS_PCI; + keybd_dev->id.bustype = BUS_PCI; keybd_dev->id.vendor = pdev->vendor; keybd_dev->id.product = pdev->device; - mouse_dev->id.version = 2; + keybd_dev->id.version = 2; + keybd_dev->dev.parent = sp->dev; keybd_dev->evbit[0] = BIT(EV_KEY); - keybd_dev->name = remote_keybd_name; + keybd_dev->name = "ibmasm RSA I remote keyboard"; for (i = 0; i < XLATE_SIZE; i++) { if (xlate_high[i]) diff --git a/drivers/misc/ibmasm/remote.h b/drivers/misc/ibmasm/remote.h index b7076a8442d2..72acf5af7a2a 100644 --- a/drivers/misc/ibmasm/remote.h +++ b/drivers/misc/ibmasm/remote.h @@ -18,7 +18,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * * Orignally written by Pete Reynolds */ @@ -73,7 +73,7 @@ struct keyboard_input { -struct remote_input { +struct remote_input { union { struct mouse_input mouse; struct keyboard_input keyboard; @@ -85,7 +85,7 @@ struct remote_input { unsigned char pad3; }; -#define mouse_addr(sp) (sp->base_address + CONDOR_MOUSE_DATA) +#define mouse_addr(sp) (sp->base_address + CONDOR_MOUSE_DATA) #define display_width(sp) (mouse_addr(sp) + CONDOR_INPUT_DISPLAY_RESX) #define display_height(sp) (mouse_addr(sp) + CONDOR_INPUT_DISPLAY_RESY) #define display_depth(sp) (mouse_addr(sp) + CONDOR_INPUT_DISPLAY_BITS) @@ -93,7 +93,7 @@ struct remote_input { #define vnc_status(sp) (mouse_addr(sp) + CONDOR_OUTPUT_VNC_STATUS) #define isr_control(sp) (mouse_addr(sp) + CONDOR_MOUSE_ISR_CONTROL) -#define mouse_interrupt_pending(sp) readl(mouse_addr(sp) + CONDOR_MOUSE_ISR_STATUS) +#define mouse_interrupt_pending(sp) readl(mouse_addr(sp) + CONDOR_MOUSE_ISR_STATUS) #define clear_mouse_interrupt(sp) writel(0, mouse_addr(sp) + CONDOR_MOUSE_ISR_STATUS) #define enable_mouse_interrupts(sp) writel(1, mouse_addr(sp) + CONDOR_MOUSE_ISR_CONTROL) #define disable_mouse_interrupts(sp) writel(0, mouse_addr(sp) + CONDOR_MOUSE_ISR_CONTROL) diff --git a/drivers/misc/ibmasm/uart.c b/drivers/misc/ibmasm/uart.c index 9783caf49696..93baa350d698 100644 --- a/drivers/misc/ibmasm/uart.c +++ b/drivers/misc/ibmasm/uart.c @@ -18,7 +18,7 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index cbd4b6e3e17c..93fe2e5dd616 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -414,13 +414,12 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card) return ERR_PTR(-ENOSPC); __set_bit(devidx, dev_use); - md = kmalloc(sizeof(struct mmc_blk_data), GFP_KERNEL); + md = kzalloc(sizeof(struct mmc_blk_data), GFP_KERNEL); if (!md) { ret = -ENOMEM; goto out; } - memset(md, 0, sizeof(struct mmc_blk_data)); /* * Set the read-only status based on the supported commands diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 4fb2089dc690..b53dac8d1b69 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -11,6 +11,7 @@ */ #include <linux/module.h> #include <linux/blkdev.h> +#include <linux/freezer.h> #include <linux/kthread.h> #include <linux/mmc/card.h> @@ -44,11 +45,7 @@ static int mmc_queue_thread(void *d) struct mmc_queue *mq = d; struct request_queue *q = mq->queue; - /* - * Set iothread to ensure that we aren't put to sleep by - * the process freezing. We handle suspension ourselves. - */ - current->flags |= PF_MEMALLOC|PF_NOFREEZE; + current->flags |= PF_MEMALLOC; down(&mq->thread_sem); do { diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 51bc7e2f1f22..ef89780eb9d6 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -16,6 +16,7 @@ #include <linux/mtd/mtd.h> #include <linux/blkdev.h> #include <linux/blkpg.h> +#include <linux/freezer.h> #include <linux/spinlock.h> #include <linux/hdreg.h> #include <linux/init.h> @@ -80,7 +81,7 @@ static int mtd_blktrans_thread(void *arg) struct request_queue *rq = tr->blkcore_priv->rq; /* we might get involved when memory gets low, so use PF_MEMALLOC */ - current->flags |= PF_MEMALLOC | PF_NOFREEZE; + current->flags |= PF_MEMALLOC; spin_lock_irq(rq->queue_lock); while (!kthread_should_stop()) { diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 555d594d1811..1cb22bfae750 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -33,6 +33,7 @@ #include <linux/moduleparam.h> #include <linux/stringify.h> #include <linux/stat.h> +#include <linux/log2.h> #include "ubi.h" /* Maximum length of the 'mtd=' parameter */ @@ -369,7 +370,7 @@ static int attach_by_scanning(struct ubi_device *ubi) out_wl: ubi_wl_close(ubi); out_vtbl: - kfree(ubi->vtbl); + vfree(ubi->vtbl); out_si: ubi_scan_destroy_si(si); return err; @@ -422,8 +423,7 @@ static int io_init(struct ubi_device *ubi) ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft; /* Make sure minimal I/O unit is power of 2 */ - if (ubi->min_io_size == 0 || - (ubi->min_io_size & (ubi->min_io_size - 1))) { + if (!is_power_of_2(ubi->min_io_size)) { ubi_err("bad min. I/O unit"); return -EINVAL; } @@ -593,8 +593,6 @@ static int attach_mtd_dev(const char *mtd_dev, int vid_hdr_offset, if (err) goto out_detach; - ubi_devices_cnt += 1; - ubi_msg("attached mtd%d to ubi%d", ubi->mtd->index, ubi_devices_cnt); ubi_msg("MTD device name: \"%s\"", ubi->mtd->name); ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20); @@ -624,12 +622,13 @@ static int attach_mtd_dev(const char *mtd_dev, int vid_hdr_offset, wake_up_process(ubi->bgt_thread); } + ubi_devices_cnt += 1; return 0; out_detach: ubi_eba_close(ubi); ubi_wl_close(ubi); - kfree(ubi->vtbl); + vfree(ubi->vtbl); out_free: kfree(ubi); out_mtd: @@ -650,7 +649,7 @@ static void detach_mtd_dev(struct ubi_device *ubi) uif_close(ubi); ubi_eba_close(ubi); ubi_wl_close(ubi); - kfree(ubi->vtbl); + vfree(ubi->vtbl); put_mtd_device(ubi->mtd); kfree(ubi_devices[ubi_num]); ubi_devices[ubi_num] = NULL; @@ -686,13 +685,6 @@ static int __init ubi_init(void) struct mtd_dev_param *p = &mtd_dev_param[i]; cond_resched(); - - if (!p->name) { - dbg_err("empty name"); - err = -EINVAL; - goto out_detach; - } - err = attach_mtd_dev(p->name, p->vid_hdr_offs, p->data_offs); if (err) goto out_detach; @@ -799,7 +791,7 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp) /* Get rid of the final newline */ if (buf[len - 1] == '\n') - buf[len - 1] = 0; + buf[len - 1] = '\0'; for (i = 0; i < 3; i++) tokens[i] = strsep(&pbuf, ","); @@ -809,9 +801,6 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp) return -EINVAL; } - if (tokens[0] == '\0') - return -EINVAL; - p = &mtd_dev_param[mtd_devs]; strcpy(&p->name[0], tokens[0]); diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 6612eb79bf17..fe4da1e96c52 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -64,6 +64,7 @@ static struct ubi_device *major_to_device(int major) if (ubi_devices[i] && ubi_devices[i]->major == major) return ubi_devices[i]; BUG(); + return NULL; } /** @@ -153,7 +154,7 @@ static int vol_cdev_release(struct inode *inode, struct file *file) ubi_warn("update of volume %d not finished, volume is damaged", vol->vol_id); vol->updating = 0; - kfree(vol->upd_buf); + vfree(vol->upd_buf); } ubi_close_volume(desc); @@ -232,7 +233,7 @@ static ssize_t vol_cdev_read(struct file *file, __user char *buf, size_t count, tbuf_size = vol->usable_leb_size; if (count < tbuf_size) tbuf_size = ALIGN(count, ubi->min_io_size); - tbuf = kmalloc(tbuf_size, GFP_KERNEL); + tbuf = vmalloc(tbuf_size); if (!tbuf) return -ENOMEM; @@ -271,7 +272,7 @@ static ssize_t vol_cdev_read(struct file *file, __user char *buf, size_t count, len = count > tbuf_size ? tbuf_size : count; } while (count); - kfree(tbuf); + vfree(tbuf); return err ? err : count_save - count; } @@ -320,7 +321,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, tbuf_size = vol->usable_leb_size; if (count < tbuf_size) tbuf_size = ALIGN(count, ubi->min_io_size); - tbuf = kmalloc(tbuf_size, GFP_KERNEL); + tbuf = vmalloc(tbuf_size); if (!tbuf) return -ENOMEM; @@ -355,7 +356,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, len = count > tbuf_size ? tbuf_size : count; } - kfree(tbuf); + vfree(tbuf); return err ? err : count_save - count; } @@ -397,6 +398,7 @@ static ssize_t vol_cdev_write(struct file *file, const char __user *buf, vol->corrupted = 1; } vol->checked = 1; + ubi_gluebi_updated(vol); revoke_exclusive(desc, UBI_READWRITE); } @@ -413,19 +415,7 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file, struct ubi_device *ubi = vol->ubi; void __user *argp = (void __user *)arg; - if (_IOC_NR(cmd) > VOL_CDEV_IOC_MAX_SEQ || - _IOC_TYPE(cmd) != UBI_VOL_IOC_MAGIC) - return -ENOTTY; - - if (_IOC_DIR(cmd) && _IOC_READ) - err = !access_ok(VERIFY_WRITE, argp, _IOC_SIZE(cmd)); - else if (_IOC_DIR(cmd) && _IOC_WRITE) - err = !access_ok(VERIFY_READ, argp, _IOC_SIZE(cmd)); - if (err) - return -EFAULT; - switch (cmd) { - /* Volume update command */ case UBI_IOCVOLUP: { @@ -471,7 +461,7 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file, { int32_t lnum; - err = __get_user(lnum, (__user int32_t *)argp); + err = get_user(lnum, (__user int32_t *)argp); if (err) { err = -EFAULT; break; @@ -587,17 +577,6 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, struct ubi_volume_desc *desc; void __user *argp = (void __user *)arg; - if (_IOC_NR(cmd) > UBI_CDEV_IOC_MAX_SEQ || - _IOC_TYPE(cmd) != UBI_IOC_MAGIC) - return -ENOTTY; - - if (_IOC_DIR(cmd) && _IOC_READ) - err = !access_ok(VERIFY_WRITE, argp, _IOC_SIZE(cmd)); - else if (_IOC_DIR(cmd) && _IOC_WRITE) - err = !access_ok(VERIFY_READ, argp, _IOC_SIZE(cmd)); - if (err) - return -EFAULT; - if (!capable(CAP_SYS_RESOURCE)) return -EPERM; @@ -612,7 +591,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, struct ubi_mkvol_req req; dbg_msg("create volume"); - err = __copy_from_user(&req, argp, + err = copy_from_user(&req, argp, sizeof(struct ubi_mkvol_req)); if (err) { err = -EFAULT; @@ -629,7 +608,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, if (err) break; - err = __put_user(req.vol_id, (__user int32_t *)argp); + err = put_user(req.vol_id, (__user int32_t *)argp); if (err) err = -EFAULT; @@ -642,7 +621,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, int vol_id; dbg_msg("remove volume"); - err = __get_user(vol_id, (__user int32_t *)argp); + err = get_user(vol_id, (__user int32_t *)argp); if (err) { err = -EFAULT; break; @@ -669,7 +648,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, struct ubi_rsvol_req req; dbg_msg("re-size volume"); - err = __copy_from_user(&req, argp, + err = copy_from_user(&req, argp, sizeof(struct ubi_rsvol_req)); if (err) { err = -EFAULT; @@ -707,7 +686,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, struct file_operations ubi_cdev_operations = { .owner = THIS_MODULE, .ioctl = ubi_cdev_ioctl, - .llseek = no_llseek + .llseek = no_llseek, }; /* UBI volume character device operations */ @@ -718,5 +697,5 @@ struct file_operations ubi_vol_cdev_operations = { .llseek = vol_cdev_llseek, .read = vol_cdev_read, .write = vol_cdev_write, - .ioctl = vol_cdev_ioctl + .ioctl = vol_cdev_ioctl, }; diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c index 86364221fafe..310341e5cd43 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -35,12 +35,12 @@ void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr) { dbg_msg("erase counter header dump:"); - dbg_msg("magic %#08x", ubi32_to_cpu(ec_hdr->magic)); + dbg_msg("magic %#08x", be32_to_cpu(ec_hdr->magic)); dbg_msg("version %d", (int)ec_hdr->version); - dbg_msg("ec %llu", (long long)ubi64_to_cpu(ec_hdr->ec)); - dbg_msg("vid_hdr_offset %d", ubi32_to_cpu(ec_hdr->vid_hdr_offset)); - dbg_msg("data_offset %d", ubi32_to_cpu(ec_hdr->data_offset)); - dbg_msg("hdr_crc %#08x", ubi32_to_cpu(ec_hdr->hdr_crc)); + dbg_msg("ec %llu", (long long)be64_to_cpu(ec_hdr->ec)); + dbg_msg("vid_hdr_offset %d", be32_to_cpu(ec_hdr->vid_hdr_offset)); + dbg_msg("data_offset %d", be32_to_cpu(ec_hdr->data_offset)); + dbg_msg("hdr_crc %#08x", be32_to_cpu(ec_hdr->hdr_crc)); dbg_msg("erase counter header hexdump:"); ubi_dbg_hexdump(ec_hdr, UBI_EC_HDR_SIZE); } @@ -52,20 +52,20 @@ void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr) void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr) { dbg_msg("volume identifier header dump:"); - dbg_msg("magic %08x", ubi32_to_cpu(vid_hdr->magic)); + dbg_msg("magic %08x", be32_to_cpu(vid_hdr->magic)); dbg_msg("version %d", (int)vid_hdr->version); dbg_msg("vol_type %d", (int)vid_hdr->vol_type); dbg_msg("copy_flag %d", (int)vid_hdr->copy_flag); dbg_msg("compat %d", (int)vid_hdr->compat); - dbg_msg("vol_id %d", ubi32_to_cpu(vid_hdr->vol_id)); - dbg_msg("lnum %d", ubi32_to_cpu(vid_hdr->lnum)); - dbg_msg("leb_ver %u", ubi32_to_cpu(vid_hdr->leb_ver)); - dbg_msg("data_size %d", ubi32_to_cpu(vid_hdr->data_size)); - dbg_msg("used_ebs %d", ubi32_to_cpu(vid_hdr->used_ebs)); - dbg_msg("data_pad %d", ubi32_to_cpu(vid_hdr->data_pad)); + dbg_msg("vol_id %d", be32_to_cpu(vid_hdr->vol_id)); + dbg_msg("lnum %d", be32_to_cpu(vid_hdr->lnum)); + dbg_msg("leb_ver %u", be32_to_cpu(vid_hdr->leb_ver)); + dbg_msg("data_size %d", be32_to_cpu(vid_hdr->data_size)); + dbg_msg("used_ebs %d", be32_to_cpu(vid_hdr->used_ebs)); + dbg_msg("data_pad %d", be32_to_cpu(vid_hdr->data_pad)); dbg_msg("sqnum %llu", - (unsigned long long)ubi64_to_cpu(vid_hdr->sqnum)); - dbg_msg("hdr_crc %08x", ubi32_to_cpu(vid_hdr->hdr_crc)); + (unsigned long long)be64_to_cpu(vid_hdr->sqnum)); + dbg_msg("hdr_crc %08x", be32_to_cpu(vid_hdr->hdr_crc)); dbg_msg("volume identifier header hexdump:"); } @@ -91,7 +91,7 @@ void ubi_dbg_dump_vol_info(const struct ubi_volume *vol) if (vol->name_len <= UBI_VOL_NAME_MAX && strnlen(vol->name, vol->name_len + 1) == vol->name_len) { - dbg_msg("name %s", vol->name); + dbg_msg("name %s", vol->name); } else { dbg_msg("the 1st 5 characters of the name: %c%c%c%c%c", vol->name[0], vol->name[1], vol->name[2], @@ -106,30 +106,30 @@ void ubi_dbg_dump_vol_info(const struct ubi_volume *vol) */ void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx) { - int name_len = ubi16_to_cpu(r->name_len); + int name_len = be16_to_cpu(r->name_len); dbg_msg("volume table record %d dump:", idx); - dbg_msg("reserved_pebs %d", ubi32_to_cpu(r->reserved_pebs)); - dbg_msg("alignment %d", ubi32_to_cpu(r->alignment)); - dbg_msg("data_pad %d", ubi32_to_cpu(r->data_pad)); + dbg_msg("reserved_pebs %d", be32_to_cpu(r->reserved_pebs)); + dbg_msg("alignment %d", be32_to_cpu(r->alignment)); + dbg_msg("data_pad %d", be32_to_cpu(r->data_pad)); dbg_msg("vol_type %d", (int)r->vol_type); dbg_msg("upd_marker %d", (int)r->upd_marker); dbg_msg("name_len %d", name_len); if (r->name[0] == '\0') { - dbg_msg("name NULL"); + dbg_msg("name NULL"); return; } if (name_len <= UBI_VOL_NAME_MAX && strnlen(&r->name[0], name_len + 1) == name_len) { - dbg_msg("name %s", &r->name[0]); + dbg_msg("name %s", &r->name[0]); } else { dbg_msg("1st 5 characters of the name: %c%c%c%c%c", r->name[0], r->name[1], r->name[2], r->name[3], r->name[4]); } - dbg_msg("crc %#08x", ubi32_to_cpu(r->crc)); + dbg_msg("crc %#08x", be32_to_cpu(r->crc)); } /** diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h index f816ad9a36c0..ff8f39548cd8 100644 --- a/drivers/mtd/ubi/debug.h +++ b/drivers/mtd/ubi/debug.h @@ -52,7 +52,6 @@ struct ubi_scan_volume; struct ubi_scan_leb; struct ubi_mkvol_req; -void ubi_dbg_print(int type, const char *func, const char *fmt, ...); void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr); void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr); void ubi_dbg_dump_vol_info(const struct ubi_volume *vol); @@ -66,7 +65,6 @@ void ubi_dbg_hexdump(const void *buf, int size); #define dbg_msg(fmt, ...) ({}) #define ubi_dbg_dump_stack() ({}) -#define ubi_dbg_print(func, fmt, ...) ({}) #define ubi_dbg_dump_ec_hdr(ec_hdr) ({}) #define ubi_dbg_dump_vid_hdr(vid_hdr) ({}) #define ubi_dbg_dump_vol_info(vol) ({}) diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index 74002945b71b..8aff9385613f 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -368,7 +368,7 @@ int ubi_eba_read_leb(struct ubi_device *ubi, int vol_id, int lnum, void *buf, int err, pnum, scrub = 0, idx = vol_id2idx(ubi, vol_id); struct ubi_vid_hdr *vid_hdr; struct ubi_volume *vol = ubi->volumes[idx]; - uint32_t crc, crc1; + uint32_t uninitialized_var(crc); err = leb_read_lock(ubi, vol_id, lnum); if (err) @@ -425,10 +425,10 @@ retry: } else if (err == UBI_IO_BITFLIPS) scrub = 1; - ubi_assert(lnum < ubi32_to_cpu(vid_hdr->used_ebs)); - ubi_assert(len == ubi32_to_cpu(vid_hdr->data_size)); + ubi_assert(lnum < be32_to_cpu(vid_hdr->used_ebs)); + ubi_assert(len == be32_to_cpu(vid_hdr->data_size)); - crc = ubi32_to_cpu(vid_hdr->data_crc); + crc = be32_to_cpu(vid_hdr->data_crc); ubi_free_vid_hdr(ubi, vid_hdr); } @@ -451,7 +451,7 @@ retry: } if (check) { - crc1 = crc32(UBI_CRC32_INIT, buf, len); + uint32_t crc1 = crc32(UBI_CRC32_INIT, buf, len); if (crc1 != crc) { ubi_warn("CRC error: calculated %#08x, must be %#08x", crc1, crc); @@ -518,13 +518,13 @@ retry: goto out_put; } - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); err = ubi_io_write_vid_hdr(ubi, new_pnum, vid_hdr); if (err) goto write_error; data_size = offset + len; - new_buf = kmalloc(data_size, GFP_KERNEL); + new_buf = vmalloc(data_size); if (!new_buf) { err = -ENOMEM; goto out_put; @@ -535,7 +535,7 @@ retry: if (offset > 0) { err = ubi_io_read_data(ubi, new_buf, pnum, 0, offset); if (err && err != UBI_IO_BITFLIPS) { - kfree(new_buf); + vfree(new_buf); goto out_put; } } @@ -544,11 +544,11 @@ retry: err = ubi_io_write_data(ubi, new_buf, new_pnum, 0, data_size); if (err) { - kfree(new_buf); + vfree(new_buf); goto write_error; } - kfree(new_buf); + vfree(new_buf); ubi_free_vid_hdr(ubi, vid_hdr); vol->eba_tbl[lnum] = new_pnum; @@ -634,11 +634,11 @@ int ubi_eba_write_leb(struct ubi_device *ubi, int vol_id, int lnum, } vid_hdr->vol_type = UBI_VID_DYNAMIC; - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); - vid_hdr->vol_id = cpu_to_ubi32(vol_id); - vid_hdr->lnum = cpu_to_ubi32(lnum); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); + vid_hdr->vol_id = cpu_to_be32(vol_id); + vid_hdr->lnum = cpu_to_be32(lnum); vid_hdr->compat = ubi_get_compat(ubi, vol_id); - vid_hdr->data_pad = cpu_to_ubi32(vol->data_pad); + vid_hdr->data_pad = cpu_to_be32(vol->data_pad); retry: pnum = ubi_wl_get_peb(ubi, dtype); @@ -692,7 +692,7 @@ write_error: return err; } - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); ubi_msg("try another PEB"); goto retry; } @@ -748,17 +748,17 @@ int ubi_eba_write_leb_st(struct ubi_device *ubi, int vol_id, int lnum, return err; } - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); - vid_hdr->vol_id = cpu_to_ubi32(vol_id); - vid_hdr->lnum = cpu_to_ubi32(lnum); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); + vid_hdr->vol_id = cpu_to_be32(vol_id); + vid_hdr->lnum = cpu_to_be32(lnum); vid_hdr->compat = ubi_get_compat(ubi, vol_id); - vid_hdr->data_pad = cpu_to_ubi32(vol->data_pad); + vid_hdr->data_pad = cpu_to_be32(vol->data_pad); crc = crc32(UBI_CRC32_INIT, buf, data_size); vid_hdr->vol_type = UBI_VID_STATIC; - vid_hdr->data_size = cpu_to_ubi32(data_size); - vid_hdr->used_ebs = cpu_to_ubi32(used_ebs); - vid_hdr->data_crc = cpu_to_ubi32(crc); + vid_hdr->data_size = cpu_to_be32(data_size); + vid_hdr->used_ebs = cpu_to_be32(used_ebs); + vid_hdr->data_crc = cpu_to_be32(crc); retry: pnum = ubi_wl_get_peb(ubi, dtype); @@ -813,7 +813,7 @@ write_error: return err; } - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); ubi_msg("try another PEB"); goto retry; } @@ -854,17 +854,17 @@ int ubi_eba_atomic_leb_change(struct ubi_device *ubi, int vol_id, int lnum, return err; } - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); - vid_hdr->vol_id = cpu_to_ubi32(vol_id); - vid_hdr->lnum = cpu_to_ubi32(lnum); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); + vid_hdr->vol_id = cpu_to_be32(vol_id); + vid_hdr->lnum = cpu_to_be32(lnum); vid_hdr->compat = ubi_get_compat(ubi, vol_id); - vid_hdr->data_pad = cpu_to_ubi32(vol->data_pad); + vid_hdr->data_pad = cpu_to_be32(vol->data_pad); crc = crc32(UBI_CRC32_INIT, buf, len); - vid_hdr->vol_type = UBI_VID_STATIC; - vid_hdr->data_size = cpu_to_ubi32(len); + vid_hdr->vol_type = UBI_VID_DYNAMIC; + vid_hdr->data_size = cpu_to_be32(len); vid_hdr->copy_flag = 1; - vid_hdr->data_crc = cpu_to_ubi32(crc); + vid_hdr->data_crc = cpu_to_be32(crc); retry: pnum = ubi_wl_get_peb(ubi, dtype); @@ -891,11 +891,13 @@ retry: goto write_error; } - err = ubi_wl_put_peb(ubi, vol->eba_tbl[lnum], 1); - if (err) { - ubi_free_vid_hdr(ubi, vid_hdr); - leb_write_unlock(ubi, vol_id, lnum); - return err; + if (vol->eba_tbl[lnum] >= 0) { + err = ubi_wl_put_peb(ubi, vol->eba_tbl[lnum], 1); + if (err) { + ubi_free_vid_hdr(ubi, vid_hdr); + leb_write_unlock(ubi, vol_id, lnum); + return err; + } } vol->eba_tbl[lnum] = pnum; @@ -924,7 +926,7 @@ write_error: return err; } - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); ubi_msg("try another PEB"); goto retry; } @@ -965,19 +967,19 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to, uint32_t crc; void *buf, *buf1 = NULL; - vol_id = ubi32_to_cpu(vid_hdr->vol_id); - lnum = ubi32_to_cpu(vid_hdr->lnum); + vol_id = be32_to_cpu(vid_hdr->vol_id); + lnum = be32_to_cpu(vid_hdr->lnum); dbg_eba("copy LEB %d:%d, PEB %d to PEB %d", vol_id, lnum, from, to); if (vid_hdr->vol_type == UBI_VID_STATIC) { - data_size = ubi32_to_cpu(vid_hdr->data_size); + data_size = be32_to_cpu(vid_hdr->data_size); aldata_size = ALIGN(data_size, ubi->min_io_size); } else data_size = aldata_size = - ubi->leb_size - ubi32_to_cpu(vid_hdr->data_pad); + ubi->leb_size - be32_to_cpu(vid_hdr->data_pad); - buf = kmalloc(aldata_size, GFP_KERNEL); + buf = vmalloc(aldata_size); if (!buf) return -ENOMEM; @@ -987,7 +989,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to, */ err = leb_write_lock(ubi, vol_id, lnum); if (err) { - kfree(buf); + vfree(buf); return err; } @@ -1054,10 +1056,10 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to, */ if (data_size > 0) { vid_hdr->copy_flag = 1; - vid_hdr->data_size = cpu_to_ubi32(data_size); - vid_hdr->data_crc = cpu_to_ubi32(crc); + vid_hdr->data_size = cpu_to_be32(data_size); + vid_hdr->data_crc = cpu_to_be32(crc); } - vid_hdr->sqnum = cpu_to_ubi64(next_sqnum(ubi)); + vid_hdr->sqnum = cpu_to_be64(next_sqnum(ubi)); err = ubi_io_write_vid_hdr(ubi, to, vid_hdr); if (err) @@ -1082,7 +1084,7 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to, * We've written the data and are going to read it back to make * sure it was written correctly. */ - buf1 = kmalloc(aldata_size, GFP_KERNEL); + buf1 = vmalloc(aldata_size); if (!buf1) { err = -ENOMEM; goto out_unlock; @@ -1111,15 +1113,15 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to, vol->eba_tbl[lnum] = to; leb_write_unlock(ubi, vol_id, lnum); - kfree(buf); - kfree(buf1); + vfree(buf); + vfree(buf1); return 0; out_unlock: leb_write_unlock(ubi, vol_id, lnum); - kfree(buf); - kfree(buf1); + vfree(buf); + vfree(buf1); return err; } diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c index fc9478d605ff..41ff74c60e14 100644 --- a/drivers/mtd/ubi/gluebi.c +++ b/drivers/mtd/ubi/gluebi.c @@ -282,7 +282,6 @@ int ubi_create_gluebi(struct ubi_device *ubi, struct ubi_volume *vol) mtd->flags = MTD_WRITEABLE; mtd->writesize = ubi->min_io_size; mtd->owner = THIS_MODULE; - mtd->size = vol->usable_leb_size * vol->reserved_pebs; mtd->erasesize = vol->usable_leb_size; mtd->read = gluebi_read; mtd->write = gluebi_write; @@ -290,6 +289,15 @@ int ubi_create_gluebi(struct ubi_device *ubi, struct ubi_volume *vol) mtd->get_device = gluebi_get_device; mtd->put_device = gluebi_put_device; + /* + * In case of dynamic volume, MTD device size is just volume size. In + * case of a static volume the size is equivalent to the amount of data + * bytes, which is zero at this moment and will be changed after volume + * update. + */ + if (vol->vol_type == UBI_DYNAMIC_VOLUME) + mtd->size = vol->usable_leb_size * vol->reserved_pebs; + if (add_mtd_device(mtd)) { ubi_err("cannot not add MTD device\n"); kfree(mtd->name); @@ -321,3 +329,20 @@ int ubi_destroy_gluebi(struct ubi_volume *vol) kfree(mtd->name); return 0; } + +/** + * ubi_gluebi_updated - UBI volume was updated notifier. + * @vol: volume description object + * + * This function is called every time an UBI volume is updated. This function + * does nothing if volume @vol is dynamic, and changes MTD device size if the + * volume is static. This is needed because static volumes cannot be read past + * data they contain. + */ +void ubi_gluebi_updated(struct ubi_volume *vol) +{ + struct mtd_info *mtd = &vol->gluebi_mtd; + + if (vol->vol_type == UBI_STATIC_VOLUME) + mtd->size = vol->used_bytes; +} diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 438914d05151..b0d8f4cede97 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -125,9 +125,9 @@ static int paranoid_check_all_ff(const struct ubi_device *ubi, int pnum, * o %UBI_IO_BITFLIPS if all the requested data were successfully read, but * correctable bit-flips were detected; this is harmless but may indicate * that this eraseblock may become bad soon (but do not have to); - * o %-EBADMSG if the MTD subsystem reported about data data integrity - * problems, for example it can me an ECC error in case of NAND; this most - * probably means that the data is corrupted; + * o %-EBADMSG if the MTD subsystem reported about data integrity problems, for + * example it can be an ECC error in case of NAND; this most probably means + * that the data is corrupted; * o %-EIO if some I/O error occurred; * o other negative error codes in case of other errors. */ @@ -298,7 +298,7 @@ retry: memset(&ei, 0, sizeof(struct erase_info)); ei.mtd = ubi->mtd; - ei.addr = pnum * ubi->peb_size; + ei.addr = (loff_t)pnum * ubi->peb_size; ei.len = ubi->peb_size; ei.callback = erase_callback; ei.priv = (unsigned long)&wq; @@ -382,7 +382,7 @@ static int torture_peb(const struct ubi_device *ubi, int pnum) void *buf; int err, i, patt_count; - buf = kmalloc(ubi->peb_size, GFP_KERNEL); + buf = vmalloc(ubi->peb_size); if (!buf) return -ENOMEM; @@ -437,7 +437,7 @@ out: * physical eraseblock which means something is wrong with it. */ err = -EIO; - kfree(buf); + vfree(buf); return err; } @@ -557,9 +557,9 @@ static int validate_ec_hdr(const struct ubi_device *ubi, long long ec; int vid_hdr_offset, leb_start; - ec = ubi64_to_cpu(ec_hdr->ec); - vid_hdr_offset = ubi32_to_cpu(ec_hdr->vid_hdr_offset); - leb_start = ubi32_to_cpu(ec_hdr->data_offset); + ec = be64_to_cpu(ec_hdr->ec); + vid_hdr_offset = be32_to_cpu(ec_hdr->vid_hdr_offset); + leb_start = be32_to_cpu(ec_hdr->data_offset); if (ec_hdr->version != UBI_VERSION) { ubi_err("node with incompatible UBI version found: " @@ -640,7 +640,7 @@ int ubi_io_read_ec_hdr(const struct ubi_device *ubi, int pnum, read_err = err; } - magic = ubi32_to_cpu(ec_hdr->magic); + magic = be32_to_cpu(ec_hdr->magic); if (magic != UBI_EC_HDR_MAGIC) { /* * The magic field is wrong. Let's check if we have read all @@ -684,7 +684,7 @@ int ubi_io_read_ec_hdr(const struct ubi_device *ubi, int pnum, } crc = crc32(UBI_CRC32_INIT, ec_hdr, UBI_EC_HDR_SIZE_CRC); - hdr_crc = ubi32_to_cpu(ec_hdr->hdr_crc); + hdr_crc = be32_to_cpu(ec_hdr->hdr_crc); if (hdr_crc != crc) { if (verbose) { @@ -729,12 +729,12 @@ int ubi_io_write_ec_hdr(const struct ubi_device *ubi, int pnum, dbg_io("write EC header to PEB %d", pnum); ubi_assert(pnum >= 0 && pnum < ubi->peb_count); - ec_hdr->magic = cpu_to_ubi32(UBI_EC_HDR_MAGIC); + ec_hdr->magic = cpu_to_be32(UBI_EC_HDR_MAGIC); ec_hdr->version = UBI_VERSION; - ec_hdr->vid_hdr_offset = cpu_to_ubi32(ubi->vid_hdr_offset); - ec_hdr->data_offset = cpu_to_ubi32(ubi->leb_start); + ec_hdr->vid_hdr_offset = cpu_to_be32(ubi->vid_hdr_offset); + ec_hdr->data_offset = cpu_to_be32(ubi->leb_start); crc = crc32(UBI_CRC32_INIT, ec_hdr, UBI_EC_HDR_SIZE_CRC); - ec_hdr->hdr_crc = cpu_to_ubi32(crc); + ec_hdr->hdr_crc = cpu_to_be32(crc); err = paranoid_check_ec_hdr(ubi, pnum, ec_hdr); if (err) @@ -757,13 +757,13 @@ static int validate_vid_hdr(const struct ubi_device *ubi, { int vol_type = vid_hdr->vol_type; int copy_flag = vid_hdr->copy_flag; - int vol_id = ubi32_to_cpu(vid_hdr->vol_id); - int lnum = ubi32_to_cpu(vid_hdr->lnum); + int vol_id = be32_to_cpu(vid_hdr->vol_id); + int lnum = be32_to_cpu(vid_hdr->lnum); int compat = vid_hdr->compat; - int data_size = ubi32_to_cpu(vid_hdr->data_size); - int used_ebs = ubi32_to_cpu(vid_hdr->used_ebs); - int data_pad = ubi32_to_cpu(vid_hdr->data_pad); - int data_crc = ubi32_to_cpu(vid_hdr->data_crc); + int data_size = be32_to_cpu(vid_hdr->data_size); + int used_ebs = be32_to_cpu(vid_hdr->used_ebs); + int data_pad = be32_to_cpu(vid_hdr->data_pad); + int data_crc = be32_to_cpu(vid_hdr->data_crc); int usable_leb_size = ubi->leb_size - data_pad; if (copy_flag != 0 && copy_flag != 1) { @@ -914,7 +914,7 @@ int ubi_io_read_vid_hdr(const struct ubi_device *ubi, int pnum, read_err = err; } - magic = ubi32_to_cpu(vid_hdr->magic); + magic = be32_to_cpu(vid_hdr->magic); if (magic != UBI_VID_HDR_MAGIC) { /* * If we have read all 0xFF bytes, the VID header probably does @@ -957,7 +957,7 @@ int ubi_io_read_vid_hdr(const struct ubi_device *ubi, int pnum, } crc = crc32(UBI_CRC32_INIT, vid_hdr, UBI_VID_HDR_SIZE_CRC); - hdr_crc = ubi32_to_cpu(vid_hdr->hdr_crc); + hdr_crc = be32_to_cpu(vid_hdr->hdr_crc); if (hdr_crc != crc) { if (verbose) { @@ -1007,10 +1007,10 @@ int ubi_io_write_vid_hdr(const struct ubi_device *ubi, int pnum, if (err) return err > 0 ? -EINVAL: err; - vid_hdr->magic = cpu_to_ubi32(UBI_VID_HDR_MAGIC); + vid_hdr->magic = cpu_to_be32(UBI_VID_HDR_MAGIC); vid_hdr->version = UBI_VERSION; crc = crc32(UBI_CRC32_INIT, vid_hdr, UBI_VID_HDR_SIZE_CRC); - vid_hdr->hdr_crc = cpu_to_ubi32(crc); + vid_hdr->hdr_crc = cpu_to_be32(crc); err = paranoid_check_vid_hdr(ubi, pnum, vid_hdr); if (err) @@ -1060,7 +1060,7 @@ static int paranoid_check_ec_hdr(const struct ubi_device *ubi, int pnum, int err; uint32_t magic; - magic = ubi32_to_cpu(ec_hdr->magic); + magic = be32_to_cpu(ec_hdr->magic); if (magic != UBI_EC_HDR_MAGIC) { ubi_err("bad magic %#08x, must be %#08x", magic, UBI_EC_HDR_MAGIC); @@ -1105,7 +1105,7 @@ static int paranoid_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum) goto exit; crc = crc32(UBI_CRC32_INIT, ec_hdr, UBI_EC_HDR_SIZE_CRC); - hdr_crc = ubi32_to_cpu(ec_hdr->hdr_crc); + hdr_crc = be32_to_cpu(ec_hdr->hdr_crc); if (hdr_crc != crc) { ubi_err("bad CRC, calculated %#08x, read %#08x", crc, hdr_crc); ubi_err("paranoid check failed for PEB %d", pnum); @@ -1137,7 +1137,7 @@ static int paranoid_check_vid_hdr(const struct ubi_device *ubi, int pnum, int err; uint32_t magic; - magic = ubi32_to_cpu(vid_hdr->magic); + magic = be32_to_cpu(vid_hdr->magic); if (magic != UBI_VID_HDR_MAGIC) { ubi_err("bad VID header magic %#08x at PEB %d, must be %#08x", magic, pnum, UBI_VID_HDR_MAGIC); @@ -1187,7 +1187,7 @@ static int paranoid_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum) goto exit; crc = crc32(UBI_CRC32_INIT, vid_hdr, UBI_EC_HDR_SIZE_CRC); - hdr_crc = ubi32_to_cpu(vid_hdr->hdr_crc); + hdr_crc = be32_to_cpu(vid_hdr->hdr_crc); if (hdr_crc != crc) { ubi_err("bad VID header CRC at PEB %d, calculated %#08x, " "read %#08x", pnum, crc, hdr_crc); @@ -1224,9 +1224,10 @@ static int paranoid_check_all_ff(const struct ubi_device *ubi, int pnum, void *buf; loff_t addr = (loff_t)pnum * ubi->peb_size + offset; - buf = kzalloc(len, GFP_KERNEL); + buf = vmalloc(len); if (!buf) return -ENOMEM; + memset(buf, 0, len); err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf); if (err && err != -EUCLEAN) { @@ -1242,7 +1243,7 @@ static int paranoid_check_all_ff(const struct ubi_device *ubi, int pnum, goto fail; } - kfree(buf); + vfree(buf); return 0; fail: @@ -1252,7 +1253,7 @@ fail: err = 1; error: ubi_dbg_dump_stack(); - kfree(buf); + vfree(buf); return err; } diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index d352c4575c3d..4a458e83e4e9 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -37,14 +37,9 @@ int ubi_get_device_info(int ubi_num, struct ubi_device_info *di) { const struct ubi_device *ubi; - if (!try_module_get(THIS_MODULE)) - return -ENODEV; - if (ubi_num < 0 || ubi_num >= UBI_MAX_DEVICES || - !ubi_devices[ubi_num]) { - module_put(THIS_MODULE); + !ubi_devices[ubi_num]) return -ENODEV; - } ubi = ubi_devices[ubi_num]; di->ubi_num = ubi->ubi_num; @@ -52,7 +47,6 @@ int ubi_get_device_info(int ubi_num, struct ubi_device_info *di) di->min_io_size = ubi->min_io_size; di->ro_mode = ubi->ro_mode; di->cdev = MKDEV(ubi->major, 0); - module_put(THIS_MODULE); return 0; } EXPORT_SYMBOL_GPL(ubi_get_device_info); @@ -319,9 +313,14 @@ int ubi_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset, offset + len > vol->usable_leb_size) return -EINVAL; - if (vol->vol_type == UBI_STATIC_VOLUME && lnum == vol->used_ebs - 1 && - offset + len > vol->last_eb_bytes) - return -EINVAL; + if (vol->vol_type == UBI_STATIC_VOLUME) { + if (vol->used_ebs == 0) + /* Empty static UBI volume */ + return 0; + if (lnum == vol->used_ebs - 1 && + offset + len > vol->last_eb_bytes) + return -EINVAL; + } if (vol->upd_marker) return -EBADF; diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c index 38d4e6757dc7..9e2338c8e2cf 100644 --- a/drivers/mtd/ubi/misc.c +++ b/drivers/mtd/ubi/misc.c @@ -67,7 +67,7 @@ int ubi_check_volume(struct ubi_device *ubi, int vol_id) if (vol->vol_type != UBI_STATIC_VOLUME) return 0; - buf = kmalloc(vol->usable_leb_size, GFP_KERNEL); + buf = vmalloc(vol->usable_leb_size); if (!buf) return -ENOMEM; @@ -87,7 +87,7 @@ int ubi_check_volume(struct ubi_device *ubi, int vol_id) } } - kfree(buf); + vfree(buf); return err; } diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c index 473f3200b868..94ee54934411 100644 --- a/drivers/mtd/ubi/scan.c +++ b/drivers/mtd/ubi/scan.c @@ -24,7 +24,7 @@ * This unit is responsible for scanning the flash media, checking UBI * headers and providing complete information about the UBI flash image. * - * The scanning information is reoresented by a &struct ubi_scan_info' object. + * The scanning information is represented by a &struct ubi_scan_info' object. * Information about found volumes is represented by &struct ubi_scan_volume * objects which are kept in volume RB-tree with root at the @volumes field. * The RB-tree is indexed by the volume ID. @@ -55,8 +55,19 @@ static int paranoid_check_si(const struct ubi_device *ubi, static struct ubi_ec_hdr *ech; static struct ubi_vid_hdr *vidh; -int ubi_scan_add_to_list(struct ubi_scan_info *si, int pnum, int ec, - struct list_head *list) +/** + * add_to_list - add physical eraseblock to a list. + * @si: scanning information + * @pnum: physical eraseblock number to add + * @ec: erase counter of the physical eraseblock + * @list: the list to add to + * + * This function adds physical eraseblock @pnum to free, erase, corrupted or + * alien lists. Returns zero in case of success and a negative error code in + * case of failure. + */ +static int add_to_list(struct ubi_scan_info *si, int pnum, int ec, + struct list_head *list) { struct ubi_scan_leb *seb; @@ -121,9 +132,9 @@ static int validate_vid_hdr(const struct ubi_vid_hdr *vid_hdr, const struct ubi_scan_volume *sv, int pnum) { int vol_type = vid_hdr->vol_type; - int vol_id = ubi32_to_cpu(vid_hdr->vol_id); - int used_ebs = ubi32_to_cpu(vid_hdr->used_ebs); - int data_pad = ubi32_to_cpu(vid_hdr->data_pad); + int vol_id = be32_to_cpu(vid_hdr->vol_id); + int used_ebs = be32_to_cpu(vid_hdr->used_ebs); + int data_pad = be32_to_cpu(vid_hdr->data_pad); if (sv->leb_count != 0) { int sv_vol_type; @@ -189,7 +200,7 @@ static struct ubi_scan_volume *add_volume(struct ubi_scan_info *si, int vol_id, struct ubi_scan_volume *sv; struct rb_node **p = &si->volumes.rb_node, *parent = NULL; - ubi_assert(vol_id == ubi32_to_cpu(vid_hdr->vol_id)); + ubi_assert(vol_id == be32_to_cpu(vid_hdr->vol_id)); /* Walk the volume RB-tree to look if this volume is already present */ while (*p) { @@ -211,11 +222,10 @@ static struct ubi_scan_volume *add_volume(struct ubi_scan_info *si, int vol_id, return ERR_PTR(-ENOMEM); sv->highest_lnum = sv->leb_count = 0; - si->max_sqnum = 0; sv->vol_id = vol_id; sv->root = RB_ROOT; - sv->used_ebs = ubi32_to_cpu(vid_hdr->used_ebs); - sv->data_pad = ubi32_to_cpu(vid_hdr->data_pad); + sv->used_ebs = be32_to_cpu(vid_hdr->used_ebs); + sv->data_pad = be32_to_cpu(vid_hdr->data_pad); sv->compat = vid_hdr->compat; sv->vol_type = vid_hdr->vol_type == UBI_VID_DYNAMIC ? UBI_DYNAMIC_VOLUME : UBI_STATIC_VOLUME; @@ -257,10 +267,10 @@ static int compare_lebs(const struct ubi_device *ubi, int len, err, second_is_newer, bitflips = 0, corrupted = 0; uint32_t data_crc, crc; struct ubi_vid_hdr *vidh = NULL; - unsigned long long sqnum2 = ubi64_to_cpu(vid_hdr->sqnum); + unsigned long long sqnum2 = be64_to_cpu(vid_hdr->sqnum); if (seb->sqnum == 0 && sqnum2 == 0) { - long long abs, v1 = seb->leb_ver, v2 = ubi32_to_cpu(vid_hdr->leb_ver); + long long abs, v1 = seb->leb_ver, v2 = be32_to_cpu(vid_hdr->leb_ver); /* * UBI constantly increases the logical eraseblock version @@ -344,8 +354,8 @@ static int compare_lebs(const struct ubi_device *ubi, /* Read the data of the copy and check the CRC */ - len = ubi32_to_cpu(vid_hdr->data_size); - buf = kmalloc(len, GFP_KERNEL); + len = be32_to_cpu(vid_hdr->data_size); + buf = vmalloc(len); if (!buf) { err = -ENOMEM; goto out_free_vidh; @@ -355,7 +365,7 @@ static int compare_lebs(const struct ubi_device *ubi, if (err && err != UBI_IO_BITFLIPS) goto out_free_buf; - data_crc = ubi32_to_cpu(vid_hdr->data_crc); + data_crc = be32_to_cpu(vid_hdr->data_crc); crc = crc32(UBI_CRC32_INIT, buf, len); if (crc != data_crc) { dbg_bld("PEB %d CRC error: calculated %#08x, must be %#08x", @@ -368,7 +378,7 @@ static int compare_lebs(const struct ubi_device *ubi, bitflips = !!err; } - kfree(buf); + vfree(buf); ubi_free_vid_hdr(ubi, vidh); if (second_is_newer) @@ -379,7 +389,7 @@ static int compare_lebs(const struct ubi_device *ubi, return second_is_newer | (bitflips << 1) | (corrupted << 2); out_free_buf: - kfree(buf); + vfree(buf); out_free_vidh: ubi_free_vid_hdr(ubi, vidh); ubi_assert(err < 0); @@ -396,8 +406,12 @@ out_free_vidh: * @vid_hdr: the volume identifier header * @bitflips: if bit-flips were detected when this physical eraseblock was read * - * This function returns zero in case of success and a negative error code in - * case of failure. + * This function adds information about a used physical eraseblock to the + * 'used' tree of the corresponding volume. The function is rather complex + * because it has to handle cases when this is not the first physical + * eraseblock belonging to the same logical eraseblock, and the newer one has + * to be picked, while the older one has to be dropped. This function returns + * zero in case of success and a negative error code in case of failure. */ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, int pnum, int ec, const struct ubi_vid_hdr *vid_hdr, @@ -410,10 +424,10 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, struct ubi_scan_leb *seb; struct rb_node **p, *parent = NULL; - vol_id = ubi32_to_cpu(vid_hdr->vol_id); - lnum = ubi32_to_cpu(vid_hdr->lnum); - sqnum = ubi64_to_cpu(vid_hdr->sqnum); - leb_ver = ubi32_to_cpu(vid_hdr->leb_ver); + vol_id = be32_to_cpu(vid_hdr->vol_id); + lnum = be32_to_cpu(vid_hdr->lnum); + sqnum = be64_to_cpu(vid_hdr->sqnum); + leb_ver = be32_to_cpu(vid_hdr->leb_ver); dbg_bld("PEB %d, LEB %d:%d, EC %d, sqnum %llu, ver %u, bitflips %d", pnum, vol_id, lnum, ec, sqnum, leb_ver, bitflips); @@ -422,6 +436,9 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, if (IS_ERR(sv) < 0) return PTR_ERR(sv); + if (si->max_sqnum < sqnum) + si->max_sqnum = sqnum; + /* * Walk the RB-tree of logical eraseblocks of volume @vol_id to look * if this is the first instance of this logical eraseblock or not. @@ -492,11 +509,11 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, return err; if (cmp_res & 4) - err = ubi_scan_add_to_list(si, seb->pnum, - seb->ec, &si->corr); + err = add_to_list(si, seb->pnum, seb->ec, + &si->corr); else - err = ubi_scan_add_to_list(si, seb->pnum, - seb->ec, &si->erase); + err = add_to_list(si, seb->pnum, seb->ec, + &si->erase); if (err) return err; @@ -508,7 +525,7 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, if (sv->highest_lnum == lnum) sv->last_data_size = - ubi32_to_cpu(vid_hdr->data_size); + be32_to_cpu(vid_hdr->data_size); return 0; } else { @@ -517,11 +534,9 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, * previously. */ if (cmp_res & 4) - return ubi_scan_add_to_list(si, pnum, ec, - &si->corr); + return add_to_list(si, pnum, ec, &si->corr); else - return ubi_scan_add_to_list(si, pnum, ec, - &si->erase); + return add_to_list(si, pnum, ec, &si->erase); } } @@ -547,12 +562,9 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, if (sv->highest_lnum <= lnum) { sv->highest_lnum = lnum; - sv->last_data_size = ubi32_to_cpu(vid_hdr->data_size); + sv->last_data_size = be32_to_cpu(vid_hdr->data_size); } - if (si->max_sqnum < sqnum) - si->max_sqnum = sqnum; - sv->leb_count += 1; rb_link_node(&seb->u.rb, parent, p); rb_insert_color(&seb->u.rb, &sv->root); @@ -674,7 +686,7 @@ int ubi_scan_erase_peb(const struct ubi_device *ubi, return -EINVAL; } - ec_hdr->ec = cpu_to_ubi64(ec); + ec_hdr->ec = cpu_to_be64(ec); err = ubi_io_sync_erase(ubi, pnum, 0); if (err < 0) @@ -754,7 +766,7 @@ struct ubi_scan_leb *ubi_scan_get_free_peb(const struct ubi_device *ubi, * @si: scanning information * @pnum: the physical eraseblock number * - * This function returns a zero if the physical eraseblock was succesfully + * This function returns a zero if the physical eraseblock was successfully * handled and a negative error code in case of failure. */ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum) @@ -783,8 +795,7 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum else if (err == UBI_IO_BITFLIPS) bitflips = 1; else if (err == UBI_IO_PEB_EMPTY) - return ubi_scan_add_to_list(si, pnum, UBI_SCAN_UNKNOWN_EC, - &si->erase); + return add_to_list(si, pnum, UBI_SCAN_UNKNOWN_EC, &si->erase); else if (err == UBI_IO_BAD_EC_HDR) { /* * We have to also look at the VID header, possibly it is not @@ -806,7 +817,7 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum return -EINVAL; } - ec = ubi64_to_cpu(ech->ec); + ec = be64_to_cpu(ech->ec); if (ec > UBI_MAX_ERASECOUNTER) { /* * Erase counter overflow. The EC headers have 64 bits @@ -832,28 +843,28 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum else if (err == UBI_IO_BAD_VID_HDR || (err == UBI_IO_PEB_FREE && ec_corr)) { /* VID header is corrupted */ - err = ubi_scan_add_to_list(si, pnum, ec, &si->corr); + err = add_to_list(si, pnum, ec, &si->corr); if (err) return err; goto adjust_mean_ec; } else if (err == UBI_IO_PEB_FREE) { /* No VID header - the physical eraseblock is free */ - err = ubi_scan_add_to_list(si, pnum, ec, &si->free); + err = add_to_list(si, pnum, ec, &si->free); if (err) return err; goto adjust_mean_ec; } - vol_id = ubi32_to_cpu(vidh->vol_id); + vol_id = be32_to_cpu(vidh->vol_id); if (vol_id > UBI_MAX_VOLUMES && vol_id != UBI_LAYOUT_VOL_ID) { - int lnum = ubi32_to_cpu(vidh->lnum); + int lnum = be32_to_cpu(vidh->lnum); /* Unsupported internal volume */ switch (vidh->compat) { case UBI_COMPAT_DELETE: ubi_msg("\"delete\" compatible internal volume %d:%d" " found, remove it", vol_id, lnum); - err = ubi_scan_add_to_list(si, pnum, ec, &si->corr); + err = add_to_list(si, pnum, ec, &si->corr); if (err) return err; break; @@ -868,7 +879,7 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum case UBI_COMPAT_PRESERVE: ubi_msg("\"preserve\" compatible internal volume %d:%d" " found", vol_id, lnum); - err = ubi_scan_add_to_list(si, pnum, ec, &si->alien); + err = add_to_list(si, pnum, ec, &si->alien); if (err) return err; si->alien_peb_count += 1; @@ -1109,7 +1120,7 @@ static int paranoid_check_si(const struct ubi_device *ubi, uint8_t *buf; /* - * At first, check that scanning information is ok. + * At first, check that scanning information is OK. */ ubi_rb_for_each_entry(rb1, sv, &si->volumes, rb) { int leb_count = 0; @@ -1249,12 +1260,12 @@ static int paranoid_check_si(const struct ubi_device *ubi, goto bad_vid_hdr; } - if (seb->sqnum != ubi64_to_cpu(vidh->sqnum)) { + if (seb->sqnum != be64_to_cpu(vidh->sqnum)) { ubi_err("bad sqnum %llu", seb->sqnum); goto bad_vid_hdr; } - if (sv->vol_id != ubi32_to_cpu(vidh->vol_id)) { + if (sv->vol_id != be32_to_cpu(vidh->vol_id)) { ubi_err("bad vol_id %d", sv->vol_id); goto bad_vid_hdr; } @@ -1264,22 +1275,22 @@ static int paranoid_check_si(const struct ubi_device *ubi, goto bad_vid_hdr; } - if (seb->lnum != ubi32_to_cpu(vidh->lnum)) { + if (seb->lnum != be32_to_cpu(vidh->lnum)) { ubi_err("bad lnum %d", seb->lnum); goto bad_vid_hdr; } - if (sv->used_ebs != ubi32_to_cpu(vidh->used_ebs)) { + if (sv->used_ebs != be32_to_cpu(vidh->used_ebs)) { ubi_err("bad used_ebs %d", sv->used_ebs); goto bad_vid_hdr; } - if (sv->data_pad != ubi32_to_cpu(vidh->data_pad)) { + if (sv->data_pad != be32_to_cpu(vidh->data_pad)) { ubi_err("bad data_pad %d", sv->data_pad); goto bad_vid_hdr; } - if (seb->leb_ver != ubi32_to_cpu(vidh->leb_ver)) { + if (seb->leb_ver != be32_to_cpu(vidh->leb_ver)) { ubi_err("bad leb_ver %u", seb->leb_ver); goto bad_vid_hdr; } @@ -1288,12 +1299,12 @@ static int paranoid_check_si(const struct ubi_device *ubi, if (!last_seb) continue; - if (sv->highest_lnum != ubi32_to_cpu(vidh->lnum)) { + if (sv->highest_lnum != be32_to_cpu(vidh->lnum)) { ubi_err("bad highest_lnum %d", sv->highest_lnum); goto bad_vid_hdr; } - if (sv->last_data_size != ubi32_to_cpu(vidh->data_size)) { + if (sv->last_data_size != be32_to_cpu(vidh->data_size)) { ubi_err("bad last_data_size %d", sv->last_data_size); goto bad_vid_hdr; } @@ -1310,8 +1321,10 @@ static int paranoid_check_si(const struct ubi_device *ubi, memset(buf, 1, ubi->peb_count); for (pnum = 0; pnum < ubi->peb_count; pnum++) { err = ubi_io_is_bad(ubi, pnum); - if (err < 0) + if (err < 0) { + kfree(buf); return err; + } else if (err) buf[pnum] = 0; } diff --git a/drivers/mtd/ubi/scan.h b/drivers/mtd/ubi/scan.h index 3949f6192c76..140e82e26534 100644 --- a/drivers/mtd/ubi/scan.h +++ b/drivers/mtd/ubi/scan.h @@ -147,8 +147,6 @@ static inline void ubi_scan_move_to_list(struct ubi_scan_volume *sv, list_add_tail(&seb->u.list, list); } -int ubi_scan_add_to_list(struct ubi_scan_info *si, int pnum, int ec, - struct list_head *list); int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si, int pnum, int ec, const struct ubi_vid_hdr *vid_hdr, int bitflips); diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index feb647f108f0..5959f91be240 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -35,6 +35,7 @@ #include <linux/cdev.h> #include <linux/device.h> #include <linux/string.h> +#include <linux/vmalloc.h> #include <linux/mtd/mtd.h> #include <mtd/ubi-header.h> @@ -374,9 +375,11 @@ void ubi_calculate_reserved(struct ubi_device *ubi); #ifdef CONFIG_MTD_UBI_GLUEBI int ubi_create_gluebi(struct ubi_device *ubi, struct ubi_volume *vol); int ubi_destroy_gluebi(struct ubi_volume *vol); +void ubi_gluebi_updated(struct ubi_volume *vol); #else #define ubi_create_gluebi(ubi, vol) 0 #define ubi_destroy_gluebi(vol) 0 +#define ubi_gluebi_updated(vol) #endif /* eba.c */ diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c index 8925b977e3dc..0efc586a8328 100644 --- a/drivers/mtd/ubi/upd.c +++ b/drivers/mtd/ubi/upd.c @@ -150,7 +150,7 @@ int ubi_start_update(struct ubi_device *ubi, int vol_id, long long bytes) vol->updating = 0; } - vol->upd_buf = kmalloc(ubi->leb_size, GFP_KERNEL); + vol->upd_buf = vmalloc(ubi->leb_size); if (!vol->upd_buf) return -ENOMEM; @@ -339,7 +339,7 @@ int ubi_more_update_data(struct ubi_device *ubi, int vol_id, err = ubi_wl_flush(ubi); if (err == 0) { err = to_write; - kfree(vol->upd_buf); + vfree(vol->upd_buf); vol->updating = 0; } } diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 622d0d18952c..ea0d5c825ab4 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -228,7 +228,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) for (i = 0; i < ubi->vtbl_slots; i++) if (ubi->volumes[i] && ubi->volumes[i]->name_len == req->name_len && - strcmp(ubi->volumes[i]->name, req->name) == 0) { + !strcmp(ubi->volumes[i]->name, req->name)) { dbg_err("volume \"%s\" exists (ID %d)", req->name, i); goto out_unlock; } @@ -243,7 +243,6 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) /* Reserve physical eraseblocks */ if (vol->reserved_pebs > ubi->avail_pebs) { dbg_err("not enough PEBs, only %d available", ubi->avail_pebs); - spin_unlock(&ubi->volumes_lock); err = -ENOSPC; goto out_unlock; } @@ -281,7 +280,8 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) if (vol->vol_type == UBI_DYNAMIC_VOLUME) { vol->used_ebs = vol->reserved_pebs; vol->last_eb_bytes = vol->usable_leb_size; - vol->used_bytes = vol->used_ebs * vol->usable_leb_size; + vol->used_bytes = + (long long)vol->used_ebs * vol->usable_leb_size; } else { bytes = vol->used_bytes; vol->last_eb_bytes = do_div(bytes, vol->usable_leb_size); @@ -320,10 +320,10 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) /* Fill volume table record */ memset(&vtbl_rec, 0, sizeof(struct ubi_vtbl_record)); - vtbl_rec.reserved_pebs = cpu_to_ubi32(vol->reserved_pebs); - vtbl_rec.alignment = cpu_to_ubi32(vol->alignment); - vtbl_rec.data_pad = cpu_to_ubi32(vol->data_pad); - vtbl_rec.name_len = cpu_to_ubi16(vol->name_len); + vtbl_rec.reserved_pebs = cpu_to_be32(vol->reserved_pebs); + vtbl_rec.alignment = cpu_to_be32(vol->alignment); + vtbl_rec.data_pad = cpu_to_be32(vol->data_pad); + vtbl_rec.name_len = cpu_to_be16(vol->name_len); if (vol->vol_type == UBI_DYNAMIC_VOLUME) vtbl_rec.vol_type = UBI_VID_DYNAMIC; else @@ -352,6 +352,7 @@ out_acc: spin_lock(&ubi->volumes_lock); ubi->rsvd_pebs -= vol->reserved_pebs; ubi->avail_pebs += vol->reserved_pebs; + ubi->volumes[vol_id] = NULL; out_unlock: spin_unlock(&ubi->volumes_lock); kfree(vol); @@ -368,6 +369,7 @@ out_sysfs: spin_lock(&ubi->volumes_lock); ubi->rsvd_pebs -= vol->reserved_pebs; ubi->avail_pebs += vol->reserved_pebs; + ubi->volumes[vol_id] = NULL; spin_unlock(&ubi->volumes_lock); volume_sysfs_close(vol); return err; @@ -503,7 +505,7 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) /* Change volume table record */ memcpy(&vtbl_rec, &ubi->vtbl[vol_id], sizeof(struct ubi_vtbl_record)); - vtbl_rec.reserved_pebs = cpu_to_ubi32(reserved_pebs); + vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs); err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); if (err) goto out_acc; @@ -537,7 +539,8 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) if (vol->vol_type == UBI_DYNAMIC_VOLUME) { vol->used_ebs = reserved_pebs; vol->last_eb_bytes = vol->usable_leb_size; - vol->used_bytes = vol->used_ebs * vol->usable_leb_size; + vol->used_bytes = + (long long)vol->used_ebs * vol->usable_leb_size; } paranoid_check_volumes(ubi); @@ -643,21 +646,33 @@ void ubi_free_volume(struct ubi_device *ubi, int vol_id) * @ubi: UBI device description object * @vol_id: volume ID */ -static void paranoid_check_volume(const struct ubi_device *ubi, int vol_id) +static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) { int idx = vol_id2idx(ubi, vol_id); int reserved_pebs, alignment, data_pad, vol_type, name_len, upd_marker; - const struct ubi_volume *vol = ubi->volumes[idx]; + const struct ubi_volume *vol; long long n; const char *name; - reserved_pebs = ubi32_to_cpu(ubi->vtbl[vol_id].reserved_pebs); + spin_lock(&ubi->volumes_lock); + reserved_pebs = be32_to_cpu(ubi->vtbl[vol_id].reserved_pebs); + vol = ubi->volumes[idx]; if (!vol) { if (reserved_pebs) { ubi_err("no volume info, but volume exists"); goto fail; } + spin_unlock(&ubi->volumes_lock); + return; + } + + if (vol->exclusive) { + /* + * The volume may be being created at the moment, do not check + * it (e.g., it may be in the middle of ubi_create_volume(). + */ + spin_unlock(&ubi->volumes_lock); return; } @@ -726,7 +741,7 @@ static void paranoid_check_volume(const struct ubi_device *ubi, int vol_id) goto fail; } - n = vol->used_ebs * vol->usable_leb_size; + n = (long long)vol->used_ebs * vol->usable_leb_size; if (vol->vol_type == UBI_DYNAMIC_VOLUME) { if (vol->corrupted != 0) { ubi_err("corrupted dynamic volume"); @@ -765,9 +780,9 @@ static void paranoid_check_volume(const struct ubi_device *ubi, int vol_id) } } - alignment = ubi32_to_cpu(ubi->vtbl[vol_id].alignment); - data_pad = ubi32_to_cpu(ubi->vtbl[vol_id].data_pad); - name_len = ubi16_to_cpu(ubi->vtbl[vol_id].name_len); + alignment = be32_to_cpu(ubi->vtbl[vol_id].alignment); + data_pad = be32_to_cpu(ubi->vtbl[vol_id].data_pad); + name_len = be16_to_cpu(ubi->vtbl[vol_id].name_len); upd_marker = ubi->vtbl[vol_id].upd_marker; name = &ubi->vtbl[vol_id].name[0]; if (ubi->vtbl[vol_id].vol_type == UBI_VID_DYNAMIC) @@ -782,12 +797,14 @@ static void paranoid_check_volume(const struct ubi_device *ubi, int vol_id) goto fail; } + spin_unlock(&ubi->volumes_lock); return; fail: - ubi_err("paranoid check failed"); + ubi_err("paranoid check failed for volume %d", vol_id); ubi_dbg_dump_vol_info(vol); ubi_dbg_dump_vtbl_record(&ubi->vtbl[vol_id], vol_id); + spin_unlock(&ubi->volumes_lock); BUG(); } @@ -800,10 +817,8 @@ static void paranoid_check_volumes(struct ubi_device *ubi) int i; mutex_lock(&ubi->vtbl_mutex); - spin_lock(&ubi->volumes_lock); for (i = 0; i < ubi->vtbl_slots; i++) paranoid_check_volume(ubi, i); - spin_unlock(&ubi->volumes_lock); mutex_unlock(&ubi->vtbl_mutex); } #endif diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index b6fd6bbd941e..bc5df50813d6 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -93,12 +93,9 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, vtbl_rec = &empty_vtbl_record; else { crc = crc32(UBI_CRC32_INIT, vtbl_rec, UBI_VTBL_RECORD_SIZE_CRC); - vtbl_rec->crc = cpu_to_ubi32(crc); + vtbl_rec->crc = cpu_to_be32(crc); } - dbg_msg("change record %d", idx); - ubi_dbg_dump_vtbl_record(vtbl_rec, idx); - mutex_lock(&ubi->vtbl_mutex); memcpy(&ubi->vtbl[idx], vtbl_rec, sizeof(struct ubi_vtbl_record)); for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) { @@ -141,18 +138,18 @@ static int vtbl_check(const struct ubi_device *ubi, for (i = 0; i < ubi->vtbl_slots; i++) { cond_resched(); - reserved_pebs = ubi32_to_cpu(vtbl[i].reserved_pebs); - alignment = ubi32_to_cpu(vtbl[i].alignment); - data_pad = ubi32_to_cpu(vtbl[i].data_pad); + reserved_pebs = be32_to_cpu(vtbl[i].reserved_pebs); + alignment = be32_to_cpu(vtbl[i].alignment); + data_pad = be32_to_cpu(vtbl[i].data_pad); upd_marker = vtbl[i].upd_marker; vol_type = vtbl[i].vol_type; - name_len = ubi16_to_cpu(vtbl[i].name_len); + name_len = be16_to_cpu(vtbl[i].name_len); name = &vtbl[i].name[0]; crc = crc32(UBI_CRC32_INIT, &vtbl[i], UBI_VTBL_RECORD_SIZE_CRC); - if (ubi32_to_cpu(vtbl[i].crc) != crc) { + if (be32_to_cpu(vtbl[i].crc) != crc) { ubi_err("bad CRC at record %u: %#08x, not %#08x", - i, crc, ubi32_to_cpu(vtbl[i].crc)); + i, crc, be32_to_cpu(vtbl[i].crc)); ubi_dbg_dump_vtbl_record(&vtbl[i], i); return 1; } @@ -225,8 +222,8 @@ static int vtbl_check(const struct ubi_device *ubi, /* Checks that all names are unique */ for (i = 0; i < ubi->vtbl_slots - 1; i++) { for (n = i + 1; n < ubi->vtbl_slots; n++) { - int len1 = ubi16_to_cpu(vtbl[i].name_len); - int len2 = ubi16_to_cpu(vtbl[n].name_len); + int len1 = be16_to_cpu(vtbl[i].name_len); + int len2 = be16_to_cpu(vtbl[n].name_len); if (len1 > 0 && len1 == len2 && !strncmp(vtbl[i].name, vtbl[n].name, len1)) { @@ -288,13 +285,13 @@ retry: } vid_hdr->vol_type = UBI_VID_DYNAMIC; - vid_hdr->vol_id = cpu_to_ubi32(UBI_LAYOUT_VOL_ID); + vid_hdr->vol_id = cpu_to_be32(UBI_LAYOUT_VOL_ID); vid_hdr->compat = UBI_LAYOUT_VOLUME_COMPAT; vid_hdr->data_size = vid_hdr->used_ebs = - vid_hdr->data_pad = cpu_to_ubi32(0); - vid_hdr->lnum = cpu_to_ubi32(copy); - vid_hdr->sqnum = cpu_to_ubi64(++si->max_sqnum); - vid_hdr->leb_ver = cpu_to_ubi32(old_seb ? old_seb->leb_ver + 1: 0); + vid_hdr->data_pad = cpu_to_be32(0); + vid_hdr->lnum = cpu_to_be32(copy); + vid_hdr->sqnum = cpu_to_be64(++si->max_sqnum); + vid_hdr->leb_ver = cpu_to_be32(old_seb ? old_seb->leb_ver + 1: 0); /* The EC header is already there, write the VID header */ err = ubi_io_write_vid_hdr(ubi, new_seb->pnum, vid_hdr); @@ -317,14 +314,15 @@ retry: return err; write_error: - kfree(new_seb); - /* May be this physical eraseblock went bad, try to pick another one */ - if (++tries <= 5) { - err = ubi_scan_add_to_list(si, new_seb->pnum, new_seb->ec, - &si->corr); - if (!err) - goto retry; + if (err == -EIO && ++tries <= 5) { + /* + * Probably this physical eraseblock went bad, try to pick + * another one. + */ + list_add_tail(&new_seb->u.list, &si->corr); + goto retry; } + kfree(new_seb); out_free: ubi_free_vid_hdr(ubi, vid_hdr); return err; @@ -380,11 +378,12 @@ static struct ubi_vtbl_record *process_lvol(const struct ubi_device *ubi, /* Read both LEB 0 and LEB 1 into memory */ ubi_rb_for_each_entry(rb, seb, &sv->root, u.rb) { - leb[seb->lnum] = kzalloc(ubi->vtbl_size, GFP_KERNEL); + leb[seb->lnum] = vmalloc(ubi->vtbl_size); if (!leb[seb->lnum]) { err = -ENOMEM; goto out_free; } + memset(leb[seb->lnum], 0, ubi->vtbl_size); err = ubi_io_read_data(ubi, leb[seb->lnum], seb->pnum, 0, ubi->vtbl_size); @@ -415,7 +414,7 @@ static struct ubi_vtbl_record *process_lvol(const struct ubi_device *ubi, } /* Both LEB 1 and LEB 2 are OK and consistent */ - kfree(leb[1]); + vfree(leb[1]); return leb[0]; } else { /* LEB 0 is corrupted or does not exist */ @@ -436,13 +435,13 @@ static struct ubi_vtbl_record *process_lvol(const struct ubi_device *ubi, goto out_free; ubi_msg("volume table was restored"); - kfree(leb[0]); + vfree(leb[0]); return leb[1]; } out_free: - kfree(leb[0]); - kfree(leb[1]); + vfree(leb[0]); + vfree(leb[1]); return ERR_PTR(err); } @@ -460,9 +459,10 @@ static struct ubi_vtbl_record *create_empty_lvol(const struct ubi_device *ubi, int i; struct ubi_vtbl_record *vtbl; - vtbl = kzalloc(ubi->vtbl_size, GFP_KERNEL); + vtbl = vmalloc(ubi->vtbl_size); if (!vtbl) return ERR_PTR(-ENOMEM); + memset(vtbl, 0, ubi->vtbl_size); for (i = 0; i < ubi->vtbl_slots; i++) memcpy(&vtbl[i], &empty_vtbl_record, UBI_VTBL_RECORD_SIZE); @@ -472,7 +472,7 @@ static struct ubi_vtbl_record *create_empty_lvol(const struct ubi_device *ubi, err = create_vtbl(ubi, si, i, vtbl); if (err) { - kfree(vtbl); + vfree(vtbl); return ERR_PTR(err); } } @@ -500,19 +500,19 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, for (i = 0; i < ubi->vtbl_slots; i++) { cond_resched(); - if (ubi32_to_cpu(vtbl[i].reserved_pebs) == 0) + if (be32_to_cpu(vtbl[i].reserved_pebs) == 0) continue; /* Empty record */ vol = kzalloc(sizeof(struct ubi_volume), GFP_KERNEL); if (!vol) return -ENOMEM; - vol->reserved_pebs = ubi32_to_cpu(vtbl[i].reserved_pebs); - vol->alignment = ubi32_to_cpu(vtbl[i].alignment); - vol->data_pad = ubi32_to_cpu(vtbl[i].data_pad); + vol->reserved_pebs = be32_to_cpu(vtbl[i].reserved_pebs); + vol->alignment = be32_to_cpu(vtbl[i].alignment); + vol->data_pad = be32_to_cpu(vtbl[i].data_pad); vol->vol_type = vtbl[i].vol_type == UBI_VID_DYNAMIC ? UBI_DYNAMIC_VOLUME : UBI_STATIC_VOLUME; - vol->name_len = ubi16_to_cpu(vtbl[i].name_len); + vol->name_len = be16_to_cpu(vtbl[i].name_len); vol->usable_leb_size = ubi->leb_size - vol->data_pad; memcpy(vol->name, vtbl[i].name, vol->name_len); vol->name[vol->name_len] = '\0'; @@ -531,7 +531,8 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, if (vol->vol_type == UBI_DYNAMIC_VOLUME) { vol->used_ebs = vol->reserved_pebs; vol->last_eb_bytes = vol->usable_leb_size; - vol->used_bytes = vol->used_ebs * vol->usable_leb_size; + vol->used_bytes = + (long long)vol->used_ebs * vol->usable_leb_size; continue; } @@ -561,7 +562,8 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, } vol->used_ebs = sv->used_ebs; - vol->used_bytes = (vol->used_ebs - 1) * vol->usable_leb_size; + vol->used_bytes = + (long long)(vol->used_ebs - 1) * vol->usable_leb_size; vol->used_bytes += sv->last_data_size; vol->last_eb_bytes = sv->last_data_size; } @@ -578,7 +580,8 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, vol->usable_leb_size = ubi->leb_size; vol->used_ebs = vol->reserved_pebs; vol->last_eb_bytes = vol->reserved_pebs; - vol->used_bytes = vol->used_ebs * (ubi->leb_size - vol->data_pad); + vol->used_bytes = + (long long)vol->used_ebs * (ubi->leb_size - vol->data_pad); vol->vol_id = UBI_LAYOUT_VOL_ID; ubi_assert(!ubi->volumes[i]); @@ -718,7 +721,7 @@ int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si) int i, err; struct ubi_scan_volume *sv; - empty_vtbl_record.crc = cpu_to_ubi32(0xf116c36b); + empty_vtbl_record.crc = cpu_to_be32(0xf116c36b); /* * The number of supported volumes is limited by the eraseblock size @@ -783,7 +786,7 @@ int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si) return 0; out_free: - kfree(ubi->vtbl); + vfree(ubi->vtbl); for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) if (ubi->volumes[i]) { kfree(ubi->volumes[i]); diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index 9ecaf77eca9e..9de953762097 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -667,7 +667,7 @@ static int sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e, int tortur dbg_wl("erased PEB %d, new EC %llu", e->pnum, ec); - ec_hdr->ec = cpu_to_ubi64(ec); + ec_hdr->ec = cpu_to_be64(ec); err = ubi_io_write_ec_hdr(ubi, e->pnum, ec_hdr); if (err) @@ -1060,9 +1060,8 @@ out_unlock: static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk, int cancel) { - int err; struct ubi_wl_entry *e = wl_wrk->e; - int pnum = e->pnum; + int pnum = e->pnum, err, need; if (cancel) { dbg_wl("cancel erasure of PEB %d EC %d", pnum, e->ec); @@ -1097,62 +1096,70 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk, kfree(wl_wrk); kmem_cache_free(wl_entries_slab, e); - if (err != -EIO) { + if (err == -EINTR || err == -ENOMEM || err == -EAGAIN || + err == -EBUSY) { + int err1; + + /* Re-schedule the LEB for erasure */ + err1 = schedule_erase(ubi, e, 0); + if (err1) { + err = err1; + goto out_ro; + } + return err; + } else if (err != -EIO) { /* * If this is not %-EIO, we have no idea what to do. Scheduling * this physical eraseblock for erasure again would cause * errors again and again. Well, lets switch to RO mode. */ - ubi_ro_mode(ubi); - return err; + goto out_ro; } /* It is %-EIO, the PEB went bad */ if (!ubi->bad_allowed) { ubi_err("bad physical eraseblock %d detected", pnum); - ubi_ro_mode(ubi); - err = -EIO; - } else { - int need; - - spin_lock(&ubi->volumes_lock); - need = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs + 1; - if (need > 0) { - need = ubi->avail_pebs >= need ? need : ubi->avail_pebs; - ubi->avail_pebs -= need; - ubi->rsvd_pebs += need; - ubi->beb_rsvd_pebs += need; - if (need > 0) - ubi_msg("reserve more %d PEBs", need); - } + goto out_ro; + } - if (ubi->beb_rsvd_pebs == 0) { - spin_unlock(&ubi->volumes_lock); - ubi_err("no reserved physical eraseblocks"); - ubi_ro_mode(ubi); - return -EIO; - } + spin_lock(&ubi->volumes_lock); + need = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs + 1; + if (need > 0) { + need = ubi->avail_pebs >= need ? need : ubi->avail_pebs; + ubi->avail_pebs -= need; + ubi->rsvd_pebs += need; + ubi->beb_rsvd_pebs += need; + if (need > 0) + ubi_msg("reserve more %d PEBs", need); + } + if (ubi->beb_rsvd_pebs == 0) { spin_unlock(&ubi->volumes_lock); - ubi_msg("mark PEB %d as bad", pnum); + ubi_err("no reserved physical eraseblocks"); + goto out_ro; + } - err = ubi_io_mark_bad(ubi, pnum); - if (err) { - ubi_ro_mode(ubi); - return err; - } + spin_unlock(&ubi->volumes_lock); + ubi_msg("mark PEB %d as bad", pnum); - spin_lock(&ubi->volumes_lock); - ubi->beb_rsvd_pebs -= 1; - ubi->bad_peb_count += 1; - ubi->good_peb_count -= 1; - ubi_calculate_reserved(ubi); - if (ubi->beb_rsvd_pebs == 0) - ubi_warn("last PEB from the reserved pool was used"); - spin_unlock(&ubi->volumes_lock); - } + err = ubi_io_mark_bad(ubi, pnum); + if (err) + goto out_ro; + + spin_lock(&ubi->volumes_lock); + ubi->beb_rsvd_pebs -= 1; + ubi->bad_peb_count += 1; + ubi->good_peb_count -= 1; + ubi_calculate_reserved(ubi); + if (ubi->beb_rsvd_pebs == 0) + ubi_warn("last PEB from the reserved pool was used"); + spin_unlock(&ubi->volumes_lock); + + return err; +out_ro: + ubi_ro_mode(ubi); return err; } @@ -1346,6 +1353,7 @@ static int ubi_thread(void *u) ubi_msg("background thread \"%s\" started, PID %d", ubi->bgt_name, current->pid); + set_freezable(); for (;;) { int err; @@ -1633,7 +1641,7 @@ static int paranoid_check_ec(const struct ubi_device *ubi, int pnum, int ec) goto out_free; } - read_ec = ubi64_to_cpu(ec_hdr->ec); + read_ec = be64_to_cpu(ec_hdr->ec); if (ec != read_ec) { ubi_err("paranoid check failed for PEB %d", pnum); ubi_err("read EC is %lld, should be %d", read_ec, ec); diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 43d03178064d..3073f679584b 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -838,6 +838,50 @@ config ULTRA32 <file:Documentation/networking/net-modules.txt>. The module will be called smc-ultra32. +config BFIN_MAC + tristate "Blackfin 536/537 on-chip mac support" + depends on NET_ETHERNET && (BF537 || BF536) && (!BF537_PORT_H) + select CRC32 + select BFIN_MAC_USE_L1 if DMA_UNCACHED_NONE + help + This is the driver for blackfin on-chip mac device. Say Y if you want it + compiled into the kernel. This driver is also available as a module + ( = code which can be inserted in and removed from the running kernel + whenever you want). The module will be called bfin_mac. + +config BFIN_MAC_USE_L1 + bool "Use L1 memory for rx/tx packets" + depends on BFIN_MAC && BF537 + default y + help + To get maximum network performace, you should use L1 memory as rx/tx buffers. + Say N here if you want to reserve L1 memory for other uses. + +config BFIN_TX_DESC_NUM + int "Number of transmit buffer packets" + depends on BFIN_MAC + range 6 10 if BFIN_MAC_USE_L1 + range 10 100 + default "10" + help + Set the number of buffer packets used in driver. + +config BFIN_RX_DESC_NUM + int "Number of receive buffer packets" + depends on BFIN_MAC + range 20 100 if BFIN_MAC_USE_L1 + range 20 800 + default "20" + help + Set the number of buffer packets used in driver. + +config BFIN_MAC_RMII + bool "RMII PHY Interface (EXPERIMENTAL)" + depends on BFIN_MAC && EXPERIMENTAL + default n + help + Use Reduced PHY MII Interface + config SMC9194 tristate "SMC 9194 support" depends on NET_VENDOR_SMC && (ISA || MAC && BROKEN) @@ -2486,6 +2530,18 @@ source "drivers/atm/Kconfig" source "drivers/s390/net/Kconfig" +config XEN_NETDEV_FRONTEND + tristate "Xen network device frontend driver" + depends on XEN + default y + help + The network device frontend driver allows the kernel to + access network devices exported exported by a virtual + machine containing a physical network device driver. The + frontend driver is intended for unprivileged guest domains; + if you are compiling a kernel for a Xen guest, you almost + certainly want to enable this. + config ISERIES_VETH tristate "iSeries Virtual Ethernet driver support" depends on PPC_ISERIES diff --git a/drivers/net/Makefile b/drivers/net/Makefile index eb4167622a6a..336af0635df8 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -127,6 +127,8 @@ obj-$(CONFIG_PPPOL2TP) += pppox.o pppol2tp.o obj-$(CONFIG_SLIP) += slip.o obj-$(CONFIG_SLHC) += slhc.o +obj-$(CONFIG_XEN_NETDEV_FRONTEND) += xen-netfront.o + obj-$(CONFIG_DUMMY) += dummy.o obj-$(CONFIG_IFB) += ifb.o obj-$(CONFIG_MACVLAN) += macvlan.o @@ -175,6 +177,7 @@ obj-$(CONFIG_ZORRO8390) += zorro8390.o obj-$(CONFIG_HPLANCE) += hplance.o 7990.o obj-$(CONFIG_MVME147_NET) += mvme147.o 7990.o obj-$(CONFIG_EQUALIZER) += eql.o +obj-$(CONFIG_LGUEST_GUEST) += lguest_net.o obj-$(CONFIG_MIPS_JAZZ_SONIC) += jazzsonic.o obj-$(CONFIG_MIPS_AU1X00_ENET) += au1000_eth.o obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o @@ -198,6 +201,7 @@ obj-$(CONFIG_S2IO) += s2io.o obj-$(CONFIG_MYRI10GE) += myri10ge/ obj-$(CONFIG_SMC91X) += smc91x.o obj-$(CONFIG_SMC911X) += smc911x.o +obj-$(CONFIG_BFIN_MAC) += bfin_mac.o obj-$(CONFIG_DM9000) += dm9000.o obj-$(CONFIG_FEC_8XX) += fec_8xx/ obj-$(CONFIG_PASEMI_MAC) += pasemi_mac.o diff --git a/drivers/net/arm/ether3.c b/drivers/net/arm/ether3.c index da713500654d..a7cac695a9bd 100644 --- a/drivers/net/arm/ether3.c +++ b/drivers/net/arm/ether3.c @@ -464,7 +464,7 @@ static void ether3_setmulticastlist(struct net_device *dev) if (dev->flags & IFF_PROMISC) { /* promiscuous mode */ priv(dev)->regs.config1 |= CFG1_RECVPROMISC; - } else if (dev->flags & IFF_ALLMULTI) { + } else if (dev->flags & IFF_ALLMULTI || dev->mc_count) { priv(dev)->regs.config1 |= CFG1_RECVSPECBRMULTI; } else priv(dev)->regs.config1 |= CFG1_RECVSPECBROAD; diff --git a/drivers/net/atl1/atl1_main.c b/drivers/net/atl1/atl1_main.c index 4a18b881ae9a..fd1e156f1747 100644 --- a/drivers/net/atl1/atl1_main.c +++ b/drivers/net/atl1/atl1_main.c @@ -75,6 +75,7 @@ #include <linux/compiler.h> #include <linux/delay.h> #include <linux/mii.h> +#include <linux/interrupt.h> #include <net/checksum.h> #include <asm/atomic.h> diff --git a/drivers/net/b44.c b/drivers/net/b44.c index 96fb0ec905a7..37f1b6ff5c12 100644 --- a/drivers/net/b44.c +++ b/drivers/net/b44.c @@ -1519,14 +1519,13 @@ static void b44_setup_pseudo_magicp(struct b44 *bp) u8 *pwol_pattern; u8 pwol_mask[B44_PMASK_SIZE]; - pwol_pattern = kmalloc(B44_PATTERN_SIZE, GFP_KERNEL); + pwol_pattern = kzalloc(B44_PATTERN_SIZE, GFP_KERNEL); if (!pwol_pattern) { printk(KERN_ERR PFX "Memory not available for WOL\n"); return; } /* Ipv4 magic packet pattern - pattern 0.*/ - memset(pwol_pattern, 0, B44_PATTERN_SIZE); memset(pwol_mask, 0, B44_PMASK_SIZE); plen0 = b44_magic_pattern(bp->dev->dev_addr, pwol_pattern, pwol_mask, B44_ETHIPV4UDP_HLEN); diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c new file mode 100644 index 000000000000..9a08d656f1ce --- /dev/null +++ b/drivers/net/bfin_mac.c @@ -0,0 +1,1009 @@ +/* + * File: drivers/net/bfin_mac.c + * Based on: + * Maintainer: + * Bryan Wu <bryan.wu@analog.com> + * + * Original author: + * Luke Yang <luke.yang@analog.com> + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software ; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation ; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY ; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program ; see the file COPYING. + * If not, write to the Free Software Foundation, + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/errno.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/crc32.h> +#include <linux/device.h> +#include <linux/spinlock.h> +#include <linux/ethtool.h> +#include <linux/mii.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> + +#include <linux/platform_device.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> + +#include <asm/dma.h> +#include <linux/dma-mapping.h> + +#include <asm/blackfin.h> +#include <asm/cacheflush.h> +#include <asm/portmux.h> + +#include "bfin_mac.h" + +#define DRV_NAME "bfin_mac" +#define DRV_VERSION "1.1" +#define DRV_AUTHOR "Bryan Wu, Luke Yang" +#define DRV_DESC "Blackfin BF53[67] on-chip Ethernet MAC driver" + +MODULE_AUTHOR(DRV_AUTHOR); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION(DRV_DESC); + +#if defined(CONFIG_BFIN_MAC_USE_L1) +# define bfin_mac_alloc(dma_handle, size) l1_data_sram_zalloc(size) +# define bfin_mac_free(dma_handle, ptr) l1_data_sram_free(ptr) +#else +# define bfin_mac_alloc(dma_handle, size) \ + dma_alloc_coherent(NULL, size, dma_handle, GFP_KERNEL) +# define bfin_mac_free(dma_handle, ptr) \ + dma_free_coherent(NULL, sizeof(*ptr), ptr, dma_handle) +#endif + +#define PKT_BUF_SZ 1580 + +#define MAX_TIMEOUT_CNT 500 + +/* pointers to maintain transmit list */ +static struct net_dma_desc_tx *tx_list_head; +static struct net_dma_desc_tx *tx_list_tail; +static struct net_dma_desc_rx *rx_list_head; +static struct net_dma_desc_rx *rx_list_tail; +static struct net_dma_desc_rx *current_rx_ptr; +static struct net_dma_desc_tx *current_tx_ptr; +static struct net_dma_desc_tx *tx_desc; +static struct net_dma_desc_rx *rx_desc; + +static void desc_list_free(void) +{ + struct net_dma_desc_rx *r; + struct net_dma_desc_tx *t; + int i; +#if !defined(CONFIG_BFIN_MAC_USE_L1) + dma_addr_t dma_handle = 0; +#endif + + if (tx_desc) { + t = tx_list_head; + for (i = 0; i < CONFIG_BFIN_TX_DESC_NUM; i++) { + if (t) { + if (t->skb) { + dev_kfree_skb(t->skb); + t->skb = NULL; + } + t = t->next; + } + } + bfin_mac_free(dma_handle, tx_desc); + } + + if (rx_desc) { + r = rx_list_head; + for (i = 0; i < CONFIG_BFIN_RX_DESC_NUM; i++) { + if (r) { + if (r->skb) { + dev_kfree_skb(r->skb); + r->skb = NULL; + } + r = r->next; + } + } + bfin_mac_free(dma_handle, rx_desc); + } +} + +static int desc_list_init(void) +{ + int i; + struct sk_buff *new_skb; +#if !defined(CONFIG_BFIN_MAC_USE_L1) + /* + * This dma_handle is useless in Blackfin dma_alloc_coherent(). + * The real dma handler is the return value of dma_alloc_coherent(). + */ + dma_addr_t dma_handle; +#endif + + tx_desc = bfin_mac_alloc(&dma_handle, + sizeof(struct net_dma_desc_tx) * + CONFIG_BFIN_TX_DESC_NUM); + if (tx_desc == NULL) + goto init_error; + + rx_desc = bfin_mac_alloc(&dma_handle, + sizeof(struct net_dma_desc_rx) * + CONFIG_BFIN_RX_DESC_NUM); + if (rx_desc == NULL) + goto init_error; + + /* init tx_list */ + tx_list_head = tx_list_tail = tx_desc; + + for (i = 0; i < CONFIG_BFIN_TX_DESC_NUM; i++) { + struct net_dma_desc_tx *t = tx_desc + i; + struct dma_descriptor *a = &(t->desc_a); + struct dma_descriptor *b = &(t->desc_b); + + /* + * disable DMA + * read from memory WNR = 0 + * wordsize is 32 bits + * 6 half words is desc size + * large desc flow + */ + a->config = WDSIZE_32 | NDSIZE_6 | DMAFLOW_LARGE; + a->start_addr = (unsigned long)t->packet; + a->x_count = 0; + a->next_dma_desc = b; + + /* + * enabled DMA + * write to memory WNR = 1 + * wordsize is 32 bits + * disable interrupt + * 6 half words is desc size + * large desc flow + */ + b->config = DMAEN | WNR | WDSIZE_32 | NDSIZE_6 | DMAFLOW_LARGE; + b->start_addr = (unsigned long)(&(t->status)); + b->x_count = 0; + + t->skb = NULL; + tx_list_tail->desc_b.next_dma_desc = a; + tx_list_tail->next = t; + tx_list_tail = t; + } + tx_list_tail->next = tx_list_head; /* tx_list is a circle */ + tx_list_tail->desc_b.next_dma_desc = &(tx_list_head->desc_a); + current_tx_ptr = tx_list_head; + + /* init rx_list */ + rx_list_head = rx_list_tail = rx_desc; + + for (i = 0; i < CONFIG_BFIN_RX_DESC_NUM; i++) { + struct net_dma_desc_rx *r = rx_desc + i; + struct dma_descriptor *a = &(r->desc_a); + struct dma_descriptor *b = &(r->desc_b); + + /* allocate a new skb for next time receive */ + new_skb = dev_alloc_skb(PKT_BUF_SZ + 2); + if (!new_skb) { + printk(KERN_NOTICE DRV_NAME + ": init: low on mem - packet dropped\n"); + goto init_error; + } + skb_reserve(new_skb, 2); + r->skb = new_skb; + + /* + * enabled DMA + * write to memory WNR = 1 + * wordsize is 32 bits + * disable interrupt + * 6 half words is desc size + * large desc flow + */ + a->config = DMAEN | WNR | WDSIZE_32 | NDSIZE_6 | DMAFLOW_LARGE; + /* since RXDWA is enabled */ + a->start_addr = (unsigned long)new_skb->data - 2; + a->x_count = 0; + a->next_dma_desc = b; + + /* + * enabled DMA + * write to memory WNR = 1 + * wordsize is 32 bits + * enable interrupt + * 6 half words is desc size + * large desc flow + */ + b->config = DMAEN | WNR | WDSIZE_32 | DI_EN | + NDSIZE_6 | DMAFLOW_LARGE; + b->start_addr = (unsigned long)(&(r->status)); + b->x_count = 0; + + rx_list_tail->desc_b.next_dma_desc = a; + rx_list_tail->next = r; + rx_list_tail = r; + } + rx_list_tail->next = rx_list_head; /* rx_list is a circle */ + rx_list_tail->desc_b.next_dma_desc = &(rx_list_head->desc_a); + current_rx_ptr = rx_list_head; + + return 0; + +init_error: + desc_list_free(); + printk(KERN_ERR DRV_NAME ": kmalloc failed\n"); + return -ENOMEM; +} + + +/*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/ + +/* Set FER regs to MUX in Ethernet pins */ +static int setup_pin_mux(int action) +{ +#if defined(CONFIG_BFIN_MAC_RMII) + u16 pin_req[] = P_RMII0; +#else + u16 pin_req[] = P_MII0; +#endif + + if (action) { + if (peripheral_request_list(pin_req, DRV_NAME)) { + printk(KERN_ERR DRV_NAME + ": Requesting Peripherals failed\n"); + return -EFAULT; + } + } else + peripheral_free_list(pin_req); + + return 0; +} + +/* Wait until the previous MDC/MDIO transaction has completed */ +static void poll_mdc_done(void) +{ + int timeout_cnt = MAX_TIMEOUT_CNT; + + /* poll the STABUSY bit */ + while ((bfin_read_EMAC_STAADD()) & STABUSY) { + mdelay(10); + if (timeout_cnt-- < 0) { + printk(KERN_ERR DRV_NAME + ": wait MDC/MDIO transaction to complete timeout\n"); + break; + } + } +} + +/* Read an off-chip register in a PHY through the MDC/MDIO port */ +static u16 read_phy_reg(u16 PHYAddr, u16 RegAddr) +{ + poll_mdc_done(); + /* read mode */ + bfin_write_EMAC_STAADD(SET_PHYAD(PHYAddr) | + SET_REGAD(RegAddr) | + STABUSY); + poll_mdc_done(); + + return (u16) bfin_read_EMAC_STADAT(); +} + +/* Write an off-chip register in a PHY through the MDC/MDIO port */ +static void raw_write_phy_reg(u16 PHYAddr, u16 RegAddr, u32 Data) +{ + bfin_write_EMAC_STADAT(Data); + + /* write mode */ + bfin_write_EMAC_STAADD(SET_PHYAD(PHYAddr) | + SET_REGAD(RegAddr) | + STAOP | + STABUSY); + + poll_mdc_done(); +} + +static void write_phy_reg(u16 PHYAddr, u16 RegAddr, u32 Data) +{ + poll_mdc_done(); + raw_write_phy_reg(PHYAddr, RegAddr, Data); +} + +/* set up the phy */ +static void bf537mac_setphy(struct net_device *dev) +{ + u16 phydat; + struct bf537mac_local *lp = netdev_priv(dev); + + /* Program PHY registers */ + pr_debug("start setting up phy\n"); + + /* issue a reset */ + raw_write_phy_reg(lp->PhyAddr, PHYREG_MODECTL, 0x8000); + + /* wait half a second */ + msleep(500); + + phydat = read_phy_reg(lp->PhyAddr, PHYREG_MODECTL); + + /* advertise flow control supported */ + phydat = read_phy_reg(lp->PhyAddr, PHYREG_ANAR); + phydat |= (1 << 10); + write_phy_reg(lp->PhyAddr, PHYREG_ANAR, phydat); + + phydat = 0; + if (lp->Negotiate) + phydat |= 0x1000; /* enable auto negotiation */ + else { + if (lp->FullDuplex) + phydat |= (1 << 8); /* full duplex */ + else + phydat &= (~(1 << 8)); /* half duplex */ + + if (!lp->Port10) + phydat |= (1 << 13); /* 100 Mbps */ + else + phydat &= (~(1 << 13)); /* 10 Mbps */ + } + + if (lp->Loopback) + phydat |= (1 << 14); /* enable TX->RX loopback */ + + write_phy_reg(lp->PhyAddr, PHYREG_MODECTL, phydat); + msleep(500); + + phydat = read_phy_reg(lp->PhyAddr, PHYREG_MODECTL); + /* check for SMSC PHY */ + if ((read_phy_reg(lp->PhyAddr, PHYREG_PHYID1) == 0x7) && + ((read_phy_reg(lp->PhyAddr, PHYREG_PHYID2) & 0xfff0) == 0xC0A0)) { + /* + * we have SMSC PHY so reqest interrupt + * on link down condition + */ + + /* enable interrupts */ + write_phy_reg(lp->PhyAddr, 30, 0x0ff); + } +} + +/**************************************************************************/ +void setup_system_regs(struct net_device *dev) +{ + int phyaddr; + unsigned short sysctl, phydat; + u32 opmode; + struct bf537mac_local *lp = netdev_priv(dev); + int count = 0; + + phyaddr = lp->PhyAddr; + + /* Enable PHY output */ + if (!(bfin_read_VR_CTL() & PHYCLKOE)) + bfin_write_VR_CTL(bfin_read_VR_CTL() | PHYCLKOE); + + /* MDC = 2.5 MHz */ + sysctl = SET_MDCDIV(24); + /* Odd word alignment for Receive Frame DMA word */ + /* Configure checksum support and rcve frame word alignment */ +#if defined(BFIN_MAC_CSUM_OFFLOAD) + sysctl |= RXDWA | RXCKS; +#else + sysctl |= RXDWA; +#endif + bfin_write_EMAC_SYSCTL(sysctl); + /* auto negotiation on */ + /* full duplex */ + /* 100 Mbps */ + phydat = PHY_ANEG_EN | PHY_DUPLEX | PHY_SPD_SET; + write_phy_reg(phyaddr, PHYREG_MODECTL, phydat); + + /* test if full duplex supported */ + do { + msleep(100); + phydat = read_phy_reg(phyaddr, PHYREG_MODESTAT); + if (count > 30) { + printk(KERN_NOTICE DRV_NAME ": Link is down\n"); + printk(KERN_NOTICE DRV_NAME + "please check your network connection\n"); + break; + } + count++; + } while (!(phydat & 0x0004)); + + phydat = read_phy_reg(phyaddr, PHYREG_ANLPAR); + + if ((phydat & 0x0100) || (phydat & 0x0040)) { + opmode = FDMODE; + } else { + opmode = 0; + printk(KERN_INFO DRV_NAME + ": Network is set to half duplex\n"); + } + +#if defined(CONFIG_BFIN_MAC_RMII) + opmode |= RMII; /* For Now only 100MBit are supported */ +#endif + + bfin_write_EMAC_OPMODE(opmode); + + bfin_write_EMAC_MMC_CTL(RSTC | CROLL); + + /* Initialize the TX DMA channel registers */ + bfin_write_DMA2_X_COUNT(0); + bfin_write_DMA2_X_MODIFY(4); + bfin_write_DMA2_Y_COUNT(0); + bfin_write_DMA2_Y_MODIFY(0); + + /* Initialize the RX DMA channel registers */ + bfin_write_DMA1_X_COUNT(0); + bfin_write_DMA1_X_MODIFY(4); + bfin_write_DMA1_Y_COUNT(0); + bfin_write_DMA1_Y_MODIFY(0); +} + +void setup_mac_addr(u8 * mac_addr) +{ + u32 addr_low = le32_to_cpu(*(__le32 *) & mac_addr[0]); + u16 addr_hi = le16_to_cpu(*(__le16 *) & mac_addr[4]); + + /* this depends on a little-endian machine */ + bfin_write_EMAC_ADDRLO(addr_low); + bfin_write_EMAC_ADDRHI(addr_hi); +} + +static void adjust_tx_list(void) +{ + int timeout_cnt = MAX_TIMEOUT_CNT; + + if (tx_list_head->status.status_word != 0 + && current_tx_ptr != tx_list_head) { + goto adjust_head; /* released something, just return; */ + } + + /* + * if nothing released, check wait condition + * current's next can not be the head, + * otherwise the dma will not stop as we want + */ + if (current_tx_ptr->next->next == tx_list_head) { + while (tx_list_head->status.status_word == 0) { + mdelay(10); + if (tx_list_head->status.status_word != 0 + || !(bfin_read_DMA2_IRQ_STATUS() & 0x08)) { + goto adjust_head; + } + if (timeout_cnt-- < 0) { + printk(KERN_ERR DRV_NAME + ": wait for adjust tx list head timeout\n"); + break; + } + } + if (tx_list_head->status.status_word != 0) { + goto adjust_head; + } + } + + return; + +adjust_head: + do { + tx_list_head->desc_a.config &= ~DMAEN; + tx_list_head->status.status_word = 0; + if (tx_list_head->skb) { + dev_kfree_skb(tx_list_head->skb); + tx_list_head->skb = NULL; + } else { + printk(KERN_ERR DRV_NAME + ": no sk_buff in a transmitted frame!\n"); + } + tx_list_head = tx_list_head->next; + } while (tx_list_head->status.status_word != 0 + && current_tx_ptr != tx_list_head); + return; + +} + +static int bf537mac_hard_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + struct bf537mac_local *lp = netdev_priv(dev); + unsigned int data; + + current_tx_ptr->skb = skb; + + /* + * Is skb->data always 16-bit aligned? + * Do we need to memcpy((char *)(tail->packet + 2), skb->data, len)? + */ + if ((((unsigned int)(skb->data)) & 0x02) == 2) { + /* move skb->data to current_tx_ptr payload */ + data = (unsigned int)(skb->data) - 2; + *((unsigned short *)data) = (unsigned short)(skb->len); + current_tx_ptr->desc_a.start_addr = (unsigned long)data; + /* this is important! */ + blackfin_dcache_flush_range(data, (data + (skb->len)) + 2); + + } else { + *((unsigned short *)(current_tx_ptr->packet)) = + (unsigned short)(skb->len); + memcpy((char *)(current_tx_ptr->packet + 2), skb->data, + (skb->len)); + current_tx_ptr->desc_a.start_addr = + (unsigned long)current_tx_ptr->packet; + if (current_tx_ptr->status.status_word != 0) + current_tx_ptr->status.status_word = 0; + blackfin_dcache_flush_range((unsigned int)current_tx_ptr-> + packet, + (unsigned int)(current_tx_ptr-> + packet + skb->len) + + 2); + } + + /* enable this packet's dma */ + current_tx_ptr->desc_a.config |= DMAEN; + + /* tx dma is running, just return */ + if (bfin_read_DMA2_IRQ_STATUS() & 0x08) + goto out; + + /* tx dma is not running */ + bfin_write_DMA2_NEXT_DESC_PTR(&(current_tx_ptr->desc_a)); + /* dma enabled, read from memory, size is 6 */ + bfin_write_DMA2_CONFIG(current_tx_ptr->desc_a.config); + /* Turn on the EMAC tx */ + bfin_write_EMAC_OPMODE(bfin_read_EMAC_OPMODE() | TE); + +out: + adjust_tx_list(); + current_tx_ptr = current_tx_ptr->next; + dev->trans_start = jiffies; + lp->stats.tx_packets++; + lp->stats.tx_bytes += (skb->len); + return 0; +} + +static void bf537mac_rx(struct net_device *dev) +{ + struct sk_buff *skb, *new_skb; + struct bf537mac_local *lp = netdev_priv(dev); + unsigned short len; + + /* allocate a new skb for next time receive */ + skb = current_rx_ptr->skb; + new_skb = dev_alloc_skb(PKT_BUF_SZ + 2); + if (!new_skb) { + printk(KERN_NOTICE DRV_NAME + ": rx: low on mem - packet dropped\n"); + lp->stats.rx_dropped++; + goto out; + } + /* reserve 2 bytes for RXDWA padding */ + skb_reserve(new_skb, 2); + current_rx_ptr->skb = new_skb; + current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2; + + len = (unsigned short)((current_rx_ptr->status.status_word) & RX_FRLEN); + skb_put(skb, len); + blackfin_dcache_invalidate_range((unsigned long)skb->head, + (unsigned long)skb->tail); + + dev->last_rx = jiffies; + skb->dev = dev; + skb->protocol = eth_type_trans(skb, dev); +#if defined(BFIN_MAC_CSUM_OFFLOAD) + skb->csum = current_rx_ptr->status.ip_payload_csum; + skb->ip_summed = CHECKSUM_PARTIAL; +#endif + + netif_rx(skb); + lp->stats.rx_packets++; + lp->stats.rx_bytes += len; + current_rx_ptr->status.status_word = 0x00000000; + current_rx_ptr = current_rx_ptr->next; + +out: + return; +} + +/* interrupt routine to handle rx and error signal */ +static irqreturn_t bf537mac_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + int number = 0; + +get_one_packet: + if (current_rx_ptr->status.status_word == 0) { + /* no more new packet received */ + if (number == 0) { + if (current_rx_ptr->next->status.status_word != 0) { + current_rx_ptr = current_rx_ptr->next; + goto real_rx; + } + } + bfin_write_DMA1_IRQ_STATUS(bfin_read_DMA1_IRQ_STATUS() | + DMA_DONE | DMA_ERR); + return IRQ_HANDLED; + } + +real_rx: + bf537mac_rx(dev); + number++; + goto get_one_packet; +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void bf537mac_poll(struct net_device *dev) +{ + disable_irq(IRQ_MAC_RX); + bf537mac_interrupt(IRQ_MAC_RX, dev); + enable_irq(IRQ_MAC_RX); +} +#endif /* CONFIG_NET_POLL_CONTROLLER */ + +static void bf537mac_reset(void) +{ + unsigned int opmode; + + opmode = bfin_read_EMAC_OPMODE(); + opmode &= (~RE); + opmode &= (~TE); + /* Turn off the EMAC */ + bfin_write_EMAC_OPMODE(opmode); +} + +/* + * Enable Interrupts, Receive, and Transmit + */ +static int bf537mac_enable(struct net_device *dev) +{ + u32 opmode; + + pr_debug("%s: %s\n", dev->name, __FUNCTION__); + + /* Set RX DMA */ + bfin_write_DMA1_NEXT_DESC_PTR(&(rx_list_head->desc_a)); + bfin_write_DMA1_CONFIG(rx_list_head->desc_a.config); + + /* Wait MII done */ + poll_mdc_done(); + + /* We enable only RX here */ + /* ASTP : Enable Automatic Pad Stripping + PR : Promiscuous Mode for test + PSF : Receive frames with total length less than 64 bytes. + FDMODE : Full Duplex Mode + LB : Internal Loopback for test + RE : Receiver Enable */ + opmode = bfin_read_EMAC_OPMODE(); + if (opmode & FDMODE) + opmode |= PSF; + else + opmode |= DRO | DC | PSF; + opmode |= RE; + +#if defined(CONFIG_BFIN_MAC_RMII) + opmode |= RMII; /* For Now only 100MBit are supported */ +#ifdef CONFIG_BF_REV_0_2 + opmode |= TE; +#endif +#endif + /* Turn on the EMAC rx */ + bfin_write_EMAC_OPMODE(opmode); + + return 0; +} + +/* Our watchdog timed out. Called by the networking layer */ +static void bf537mac_timeout(struct net_device *dev) +{ + pr_debug("%s: %s\n", dev->name, __FUNCTION__); + + bf537mac_reset(); + + /* reset tx queue */ + tx_list_tail = tx_list_head->next; + + bf537mac_enable(dev); + + /* We can accept TX packets again */ + dev->trans_start = jiffies; + netif_wake_queue(dev); +} + +/* + * Get the current statistics. + * This may be called with the card open or closed. + */ +static struct net_device_stats *bf537mac_query_statistics(struct net_device + *dev) +{ + struct bf537mac_local *lp = netdev_priv(dev); + + pr_debug("%s: %s\n", dev->name, __FUNCTION__); + + return &lp->stats; +} + +/* + * This routine will, depending on the values passed to it, + * either make it accept multicast packets, go into + * promiscuous mode (for TCPDUMP and cousins) or accept + * a select set of multicast packets + */ +static void bf537mac_set_multicast_list(struct net_device *dev) +{ + u32 sysctl; + + if (dev->flags & IFF_PROMISC) { + printk(KERN_INFO "%s: set to promisc mode\n", dev->name); + sysctl = bfin_read_EMAC_OPMODE(); + sysctl |= RAF; + bfin_write_EMAC_OPMODE(sysctl); + } else if (dev->flags & IFF_ALLMULTI || dev->mc_count) { + /* accept all multicast */ + sysctl = bfin_read_EMAC_OPMODE(); + sysctl |= PAM; + bfin_write_EMAC_OPMODE(sysctl); + } else { + /* clear promisc or multicast mode */ + sysctl = bfin_read_EMAC_OPMODE(); + sysctl &= ~(RAF | PAM); + bfin_write_EMAC_OPMODE(sysctl); + } +} + +/* + * this puts the device in an inactive state + */ +static void bf537mac_shutdown(struct net_device *dev) +{ + /* Turn off the EMAC */ + bfin_write_EMAC_OPMODE(0x00000000); + /* Turn off the EMAC RX DMA */ + bfin_write_DMA1_CONFIG(0x0000); + bfin_write_DMA2_CONFIG(0x0000); +} + +/* + * Open and Initialize the interface + * + * Set up everything, reset the card, etc.. + */ +static int bf537mac_open(struct net_device *dev) +{ + pr_debug("%s: %s\n", dev->name, __FUNCTION__); + + /* + * Check that the address is valid. If its not, refuse + * to bring the device up. The user must specify an + * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx + */ + if (!is_valid_ether_addr(dev->dev_addr)) { + printk(KERN_WARNING DRV_NAME ": no valid ethernet hw addr\n"); + return -EINVAL; + } + + /* initial rx and tx list */ + desc_list_init(); + + bf537mac_setphy(dev); + setup_system_regs(dev); + bf537mac_reset(); + bf537mac_enable(dev); + + pr_debug("hardware init finished\n"); + netif_start_queue(dev); + netif_carrier_on(dev); + + return 0; +} + +/* + * + * this makes the board clean up everything that it can + * and not talk to the outside world. Caused by + * an 'ifconfig ethX down' + */ +static int bf537mac_close(struct net_device *dev) +{ + pr_debug("%s: %s\n", dev->name, __FUNCTION__); + + netif_stop_queue(dev); + netif_carrier_off(dev); + + /* clear everything */ + bf537mac_shutdown(dev); + + /* free the rx/tx buffers */ + desc_list_free(); + + return 0; +} + +static int __init bf537mac_probe(struct net_device *dev) +{ + struct bf537mac_local *lp = netdev_priv(dev); + int retval; + + /* Grab the MAC address in the MAC */ + *(__le32 *) (&(dev->dev_addr[0])) = cpu_to_le32(bfin_read_EMAC_ADDRLO()); + *(__le16 *) (&(dev->dev_addr[4])) = cpu_to_le16((u16) bfin_read_EMAC_ADDRHI()); + + /* probe mac */ + /*todo: how to proble? which is revision_register */ + bfin_write_EMAC_ADDRLO(0x12345678); + if (bfin_read_EMAC_ADDRLO() != 0x12345678) { + pr_debug("can't detect bf537 mac!\n"); + retval = -ENODEV; + goto err_out; + } + + /* set the GPIO pins to Ethernet mode */ + retval = setup_pin_mux(1); + + if (retval) + return retval; + + /*Is it valid? (Did bootloader initialize it?) */ + if (!is_valid_ether_addr(dev->dev_addr)) { + /* Grab the MAC from the board somehow - this is done in the + arch/blackfin/mach-bf537/boards/eth_mac.c */ + get_bf537_ether_addr(dev->dev_addr); + } + + /* If still not valid, get a random one */ + if (!is_valid_ether_addr(dev->dev_addr)) { + random_ether_addr(dev->dev_addr); + } + + setup_mac_addr(dev->dev_addr); + + /* Fill in the fields of the device structure with ethernet values. */ + ether_setup(dev); + + dev->open = bf537mac_open; + dev->stop = bf537mac_close; + dev->hard_start_xmit = bf537mac_hard_start_xmit; + dev->tx_timeout = bf537mac_timeout; + dev->get_stats = bf537mac_query_statistics; + dev->set_multicast_list = bf537mac_set_multicast_list; +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = bf537mac_poll; +#endif + + /* fill in some of the fields */ + lp->version = 1; + lp->PhyAddr = 0x01; + lp->CLKIN = 25; + lp->FullDuplex = 0; + lp->Negotiate = 1; + lp->FlowControl = 0; + spin_lock_init(&lp->lock); + + /* now, enable interrupts */ + /* register irq handler */ + if (request_irq + (IRQ_MAC_RX, bf537mac_interrupt, IRQF_DISABLED | IRQF_SHARED, + "BFIN537_MAC_RX", dev)) { + printk(KERN_WARNING DRV_NAME + ": Unable to attach BlackFin MAC RX interrupt\n"); + return -EBUSY; + } + + /* Enable PHY output early */ + if (!(bfin_read_VR_CTL() & PHYCLKOE)) + bfin_write_VR_CTL(bfin_read_VR_CTL() | PHYCLKOE); + + retval = register_netdev(dev); + if (retval == 0) { + /* now, print out the card info, in a short format.. */ + printk(KERN_INFO "%s: Version %s, %s\n", + DRV_NAME, DRV_VERSION, DRV_DESC); + } + +err_out: + return retval; +} + +static int bfin_mac_probe(struct platform_device *pdev) +{ + struct net_device *ndev; + + ndev = alloc_etherdev(sizeof(struct bf537mac_local)); + if (!ndev) { + printk(KERN_WARNING DRV_NAME ": could not allocate device\n"); + return -ENOMEM; + } + + SET_MODULE_OWNER(ndev); + SET_NETDEV_DEV(ndev, &pdev->dev); + + platform_set_drvdata(pdev, ndev); + + if (bf537mac_probe(ndev) != 0) { + platform_set_drvdata(pdev, NULL); + free_netdev(ndev); + printk(KERN_WARNING DRV_NAME ": not found\n"); + return -ENODEV; + } + + return 0; +} + +static int bfin_mac_remove(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + + unregister_netdev(ndev); + + free_irq(IRQ_MAC_RX, ndev); + + free_netdev(ndev); + + setup_pin_mux(0); + + return 0; +} + +static int bfin_mac_suspend(struct platform_device *pdev, pm_message_t state) +{ + return 0; +} + +static int bfin_mac_resume(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver bfin_mac_driver = { + .probe = bfin_mac_probe, + .remove = bfin_mac_remove, + .resume = bfin_mac_resume, + .suspend = bfin_mac_suspend, + .driver = { + .name = DRV_NAME, + }, +}; + +static int __init bfin_mac_init(void) +{ + return platform_driver_register(&bfin_mac_driver); +} + +module_init(bfin_mac_init); + +static void __exit bfin_mac_cleanup(void) +{ + platform_driver_unregister(&bfin_mac_driver); +} + +module_exit(bfin_mac_cleanup); diff --git a/drivers/net/bfin_mac.h b/drivers/net/bfin_mac.h new file mode 100644 index 000000000000..af87189b85fa --- /dev/null +++ b/drivers/net/bfin_mac.h @@ -0,0 +1,132 @@ +/* + * File: drivers/net/bfin_mac.c + * Based on: + * Maintainer: + * Bryan Wu <bryan.wu@analog.com> + * + * Original author: + * Luke Yang <luke.yang@analog.com> + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software ; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation ; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY ; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program ; see the file COPYING. + * If not, write to the Free Software Foundation, + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* + * PHY REGISTER NAMES + */ +#define PHYREG_MODECTL 0x0000 +#define PHYREG_MODESTAT 0x0001 +#define PHYREG_PHYID1 0x0002 +#define PHYREG_PHYID2 0x0003 +#define PHYREG_ANAR 0x0004 +#define PHYREG_ANLPAR 0x0005 +#define PHYREG_ANER 0x0006 +#define PHYREG_NSR 0x0010 +#define PHYREG_LBREMR 0x0011 +#define PHYREG_REC 0x0012 +#define PHYREG_10CFG 0x0013 +#define PHYREG_PHY1_1 0x0014 +#define PHYREG_PHY1_2 0x0015 +#define PHYREG_PHY2 0x0016 +#define PHYREG_TW_1 0x0017 +#define PHYREG_TW_2 0x0018 +#define PHYREG_TEST 0x0019 + +#define PHY_RESET 0x8000 +#define PHY_ANEG_EN 0x1000 +#define PHY_DUPLEX 0x0100 +#define PHY_SPD_SET 0x2000 + +#define BFIN_MAC_CSUM_OFFLOAD + +struct dma_descriptor { + struct dma_descriptor *next_dma_desc; + unsigned long start_addr; + unsigned short config; + unsigned short x_count; +}; + +struct status_area_rx { +#if defined(BFIN_MAC_CSUM_OFFLOAD) + unsigned short ip_hdr_csum; /* ip header checksum */ + /* ip payload(udp or tcp or others) checksum */ + unsigned short ip_payload_csum; +#endif + unsigned long status_word; /* the frame status word */ +}; + +struct status_area_tx { + unsigned long status_word; /* the frame status word */ +}; + +/* use two descriptors for a packet */ +struct net_dma_desc_rx { + struct net_dma_desc_rx *next; + struct sk_buff *skb; + struct dma_descriptor desc_a; + struct dma_descriptor desc_b; + struct status_area_rx status; +}; + +/* use two descriptors for a packet */ +struct net_dma_desc_tx { + struct net_dma_desc_tx *next; + struct sk_buff *skb; + struct dma_descriptor desc_a; + struct dma_descriptor desc_b; + unsigned char packet[1560]; + struct status_area_tx status; +}; + +struct bf537mac_local { + /* + * these are things that the kernel wants me to keep, so users + * can find out semi-useless statistics of how well the card is + * performing + */ + struct net_device_stats stats; + + int version; + + int FlowEnabled; /* record if data flow is active */ + int EtherIntIVG; /* IVG for the ethernet interrupt */ + int RXIVG; /* IVG for the RX completion */ + int TXIVG; /* IVG for the TX completion */ + int PhyAddr; /* PHY address */ + int OpMode; /* set these bits n the OPMODE regs */ + int Port10; /* set port speed to 10 Mbit/s */ + int GenChksums; /* IP checksums to be calculated */ + int NoRcveLnth; /* dont insert recv length at start of buffer */ + int StripPads; /* remove trailing pad bytes */ + int FullDuplex; /* set full duplex mode */ + int Negotiate; /* enable auto negotiation */ + int Loopback; /* loopback at the PHY */ + int Cache; /* Buffers may be cached */ + int FlowControl; /* flow control active */ + int CLKIN; /* clock in value in MHZ */ + unsigned short IntMask; /* interrupt mask */ + unsigned char Mac[6]; /* MAC address of the board */ + spinlock_t lock; +}; + +extern void get_bf537_ether_addr(char *addr); diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index d23861c8658c..a729da061bbb 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -54,8 +54,8 @@ #define DRV_MODULE_NAME "bnx2" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "1.6.2" -#define DRV_MODULE_RELDATE "July 6, 2007" +#define DRV_MODULE_VERSION "1.6.3" +#define DRV_MODULE_RELDATE "July 16, 2007" #define RUN_AT(x) (jiffies + (x)) @@ -126,91 +126,102 @@ static struct pci_device_id bnx2_pci_tbl[] = { static struct flash_spec flash_table[] = { +#define BUFFERED_FLAGS (BNX2_NV_BUFFERED | BNX2_NV_TRANSLATE) +#define NONBUFFERED_FLAGS (BNX2_NV_WREN) /* Slow EEPROM */ {0x00000000, 0x40830380, 0x009f0081, 0xa184a053, 0xaf000400, - 1, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE, + BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE, SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE, "EEPROM - slow"}, /* Expansion entry 0001 */ {0x08000002, 0x4b808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, 0, "Entry 0001"}, /* Saifun SA25F010 (non-buffered flash) */ /* strap, cfg1, & write1 need updates */ {0x04000001, 0x47808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*2, "Non-buffered flash (128kB)"}, /* Saifun SA25F020 (non-buffered flash) */ /* strap, cfg1, & write1 need updates */ {0x0c000003, 0x4f808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*4, "Non-buffered flash (256kB)"}, /* Expansion entry 0100 */ {0x11000000, 0x53808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, 0, "Entry 0100"}, /* Entry 0101: ST M45PE10 (non-buffered flash, TetonII B0) */ {0x19000002, 0x5b808201, 0x000500db, 0x03840253, 0xaf020406, - 0, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE, ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*2, "Entry 0101: ST M45PE10 (128kB non-bufferred)"}, /* Entry 0110: ST M45PE20 (non-buffered flash)*/ {0x15000001, 0x57808201, 0x000500db, 0x03840253, 0xaf020406, - 0, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE, ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*4, "Entry 0110: ST M45PE20 (256kB non-bufferred)"}, /* Saifun SA25F005 (non-buffered flash) */ /* strap, cfg1, & write1 need updates */ {0x1d000003, 0x5f808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE, "Non-buffered flash (64kB)"}, /* Fast EEPROM */ {0x22000000, 0x62808380, 0x009f0081, 0xa184a053, 0xaf000400, - 1, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE, + BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE, SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE, "EEPROM - fast"}, /* Expansion entry 1001 */ {0x2a000002, 0x6b808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, 0, "Entry 1001"}, /* Expansion entry 1010 */ {0x26000001, 0x67808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, 0, "Entry 1010"}, /* ATMEL AT45DB011B (buffered flash) */ {0x2e000003, 0x6e808273, 0x00570081, 0x68848353, 0xaf000400, - 1, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE, + BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE, BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE, "Buffered flash (128kB)"}, /* Expansion entry 1100 */ {0x33000000, 0x73808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, 0, "Entry 1100"}, /* Expansion entry 1101 */ {0x3b000002, 0x7b808201, 0x00050081, 0x03840253, 0xaf020406, - 0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, + NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE, SAIFUN_FLASH_BYTE_ADDR_MASK, 0, "Entry 1101"}, /* Ateml Expansion entry 1110 */ {0x37000001, 0x76808273, 0x00570081, 0x68848353, 0xaf000400, - 1, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE, + BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE, BUFFERED_FLASH_BYTE_ADDR_MASK, 0, "Entry 1110 (Atmel)"}, /* ATMEL AT45DB021B (buffered flash) */ {0x3f000003, 0x7e808273, 0x00570081, 0x68848353, 0xaf000400, - 1, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE, + BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE, BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE*2, "Buffered flash (256kB)"}, }; +static struct flash_spec flash_5709 = { + .flags = BNX2_NV_BUFFERED, + .page_bits = BCM5709_FLASH_PAGE_BITS, + .page_size = BCM5709_FLASH_PAGE_SIZE, + .addr_mask = BCM5709_FLASH_BYTE_ADDR_MASK, + .total_size = BUFFERED_FLASH_TOTAL_SIZE*2, + .name = "5709 Buffered flash (256kB)", +}; + MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl); static inline u32 bnx2_tx_avail(struct bnx2 *bp) @@ -3289,7 +3300,7 @@ bnx2_enable_nvram_write(struct bnx2 *bp) val = REG_RD(bp, BNX2_MISC_CFG); REG_WR(bp, BNX2_MISC_CFG, val | BNX2_MISC_CFG_NVM_WR_EN_PCI); - if (!bp->flash_info->buffered) { + if (bp->flash_info->flags & BNX2_NV_WREN) { int j; REG_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE); @@ -3349,7 +3360,7 @@ bnx2_nvram_erase_page(struct bnx2 *bp, u32 offset) u32 cmd; int j; - if (bp->flash_info->buffered) + if (bp->flash_info->flags & BNX2_NV_BUFFERED) /* Buffered flash, no erase needed */ return 0; @@ -3392,8 +3403,8 @@ bnx2_nvram_read_dword(struct bnx2 *bp, u32 offset, u8 *ret_val, u32 cmd_flags) /* Build the command word. */ cmd = BNX2_NVM_COMMAND_DOIT | cmd_flags; - /* Calculate an offset of a buffered flash. */ - if (bp->flash_info->buffered) { + /* Calculate an offset of a buffered flash, not needed for 5709. */ + if (bp->flash_info->flags & BNX2_NV_TRANSLATE) { offset = ((offset / bp->flash_info->page_size) << bp->flash_info->page_bits) + (offset % bp->flash_info->page_size); @@ -3439,8 +3450,8 @@ bnx2_nvram_write_dword(struct bnx2 *bp, u32 offset, u8 *val, u32 cmd_flags) /* Build the command word. */ cmd = BNX2_NVM_COMMAND_DOIT | BNX2_NVM_COMMAND_WR | cmd_flags; - /* Calculate an offset of a buffered flash. */ - if (bp->flash_info->buffered) { + /* Calculate an offset of a buffered flash, not needed for 5709. */ + if (bp->flash_info->flags & BNX2_NV_TRANSLATE) { offset = ((offset / bp->flash_info->page_size) << bp->flash_info->page_bits) + (offset % bp->flash_info->page_size); @@ -3478,15 +3489,19 @@ static int bnx2_init_nvram(struct bnx2 *bp) { u32 val; - int j, entry_count, rc; + int j, entry_count, rc = 0; struct flash_spec *flash; + if (CHIP_NUM(bp) == CHIP_NUM_5709) { + bp->flash_info = &flash_5709; + goto get_flash_size; + } + /* Determine the selected interface. */ val = REG_RD(bp, BNX2_NVM_CFG1); entry_count = sizeof(flash_table) / sizeof(struct flash_spec); - rc = 0; if (val & 0x40000000) { /* Flash interface has been reconfigured */ @@ -3542,6 +3557,7 @@ bnx2_init_nvram(struct bnx2 *bp) return -ENODEV; } +get_flash_size: val = REG_RD_IND(bp, bp->shmem_base + BNX2_SHARED_HW_CFG_CONFIG2); val &= BNX2_SHARED_HW_CFG2_NVM_SIZE_MASK; if (val) @@ -3706,7 +3722,7 @@ bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf, buf = align_buf; } - if (bp->flash_info->buffered == 0) { + if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) { flash_buffer = kmalloc(264, GFP_KERNEL); if (flash_buffer == NULL) { rc = -ENOMEM; @@ -3739,7 +3755,7 @@ bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf, bnx2_enable_nvram_access(bp); cmd_flags = BNX2_NVM_COMMAND_FIRST; - if (bp->flash_info->buffered == 0) { + if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) { int j; /* Read the whole page into the buffer @@ -3767,7 +3783,7 @@ bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf, /* Loop to write back the buffer data from page_start to * data_start */ i = 0; - if (bp->flash_info->buffered == 0) { + if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) { /* Erase the page */ if ((rc = bnx2_nvram_erase_page(bp, page_start)) != 0) goto nvram_write_end; @@ -3791,7 +3807,7 @@ bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf, /* Loop to write the new data from data_start to data_end */ for (addr = data_start; addr < data_end; addr += 4, i += 4) { if ((addr == page_end - 4) || - ((bp->flash_info->buffered) && + ((bp->flash_info->flags & BNX2_NV_BUFFERED) && (addr == data_end - 4))) { cmd_flags |= BNX2_NVM_COMMAND_LAST; @@ -3808,7 +3824,7 @@ bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf, /* Loop to write back the buffer data from data_end * to page_end */ - if (bp->flash_info->buffered == 0) { + if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) { for (addr = data_end; addr < page_end; addr += 4, i += 4) { @@ -4107,7 +4123,7 @@ bnx2_init_chip(struct bnx2 *bp) if (CHIP_NUM(bp) == CHIP_NUM_5708) REG_WR(bp, BNX2_HC_STATS_TICKS, 0); else - REG_WR(bp, BNX2_HC_STATS_TICKS, bp->stats_ticks & 0xffff00); + REG_WR(bp, BNX2_HC_STATS_TICKS, bp->stats_ticks); REG_WR(bp, BNX2_HC_STAT_COLLECT_TICKS, 0xbb8); /* 3ms */ if (CHIP_ID(bp) == CHIP_ID_5706_A1) @@ -4127,10 +4143,6 @@ bnx2_init_chip(struct bnx2 *bp) REG_WR(bp, BNX2_HC_ATTN_BITS_ENABLE, STATUS_ATTN_EVENTS); - if (REG_RD_IND(bp, bp->shmem_base + BNX2_PORT_FEATURE) & - BNX2_PORT_FEATURE_ASF_ENABLED) - bp->flags |= ASF_ENABLE_FLAG; - /* Initialize the receive filter. */ bnx2_set_rx_mode(bp->dev); @@ -5786,8 +5798,9 @@ bnx2_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal) if (bp->stats_ticks != 0 && bp->stats_ticks != USEC_PER_SEC) bp->stats_ticks = USEC_PER_SEC; } - if (bp->stats_ticks > 0xffff00) bp->stats_ticks = 0xffff00; - bp->stats_ticks &= 0xffff00; + if (bp->stats_ticks > BNX2_HC_STATS_TICKS_HC_STAT_TICKS) + bp->stats_ticks = BNX2_HC_STATS_TICKS_HC_STAT_TICKS; + bp->stats_ticks &= BNX2_HC_STATS_TICKS_HC_STAT_TICKS; if (netif_running(bp->dev)) { bnx2_netif_stop(bp); @@ -6629,6 +6642,18 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev) if (i != 2) bp->fw_version[j++] = '.'; } + if (REG_RD_IND(bp, bp->shmem_base + BNX2_PORT_FEATURE) & + BNX2_PORT_FEATURE_ASF_ENABLED) { + bp->flags |= ASF_ENABLE_FLAG; + + for (i = 0; i < 30; i++) { + reg = REG_RD_IND(bp, bp->shmem_base + + BNX2_BC_STATE_CONDITION); + if (reg & BNX2_CONDITION_MFW_RUN_MASK) + break; + msleep(10); + } + } reg = REG_RD_IND(bp, bp->shmem_base + BNX2_BC_STATE_CONDITION); reg &= BNX2_CONDITION_MFW_RUN_MASK; if (reg != BNX2_CONDITION_MFW_RUN_UNKNOWN && @@ -6672,7 +6697,7 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev) bp->rx_ticks_int = 18; bp->rx_ticks = 18; - bp->stats_ticks = 1000000 & 0xffff00; + bp->stats_ticks = USEC_PER_SEC & BNX2_HC_STATS_TICKS_HC_STAT_TICKS; bp->timer_interval = HZ; bp->current_interval = HZ; diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index d8cd1afeb23d..102adfe1e923 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -6433,6 +6433,11 @@ struct sw_bd { #define ST_MICRO_FLASH_PAGE_SIZE 256 #define ST_MICRO_FLASH_BASE_TOTAL_SIZE 65536 +#define BCM5709_FLASH_PAGE_BITS 8 +#define BCM5709_FLASH_PHY_PAGE_SIZE (1 << BCM5709_FLASH_PAGE_BITS) +#define BCM5709_FLASH_BYTE_ADDR_MASK (BCM5709_FLASH_PHY_PAGE_SIZE-1) +#define BCM5709_FLASH_PAGE_SIZE 256 + #define NVRAM_TIMEOUT_COUNT 30000 @@ -6449,7 +6454,10 @@ struct flash_spec { u32 config2; u32 config3; u32 write1; - u32 buffered; + u32 flags; +#define BNX2_NV_BUFFERED 0x00000001 +#define BNX2_NV_TRANSLATE 0x00000002 +#define BNX2_NV_WREN 0x00000004 u32 page_bits; u32 page_size; u32 addr_mask; diff --git a/drivers/net/bsd_comp.c b/drivers/net/bsd_comp.c index 7845eaf6f29f..202d4a4ef751 100644 --- a/drivers/net/bsd_comp.c +++ b/drivers/net/bsd_comp.c @@ -395,14 +395,13 @@ static void *bsd_alloc (unsigned char *options, int opt_len, int decomp) * Allocate the main control structure for this instance. */ maxmaxcode = MAXCODE(bits); - db = kmalloc(sizeof (struct bsd_db), + db = kzalloc(sizeof (struct bsd_db), GFP_KERNEL); if (!db) { return NULL; } - memset (db, 0, sizeof(struct bsd_db)); /* * Allocate space for the dictionary. This may be more than one page in * length. diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c index 9afa47edfc58..3c54014acece 100644 --- a/drivers/net/eepro100.c +++ b/drivers/net/eepro100.c @@ -2292,10 +2292,15 @@ static int eepro100_resume(struct pci_dev *pdev) struct net_device *dev = pci_get_drvdata (pdev); struct speedo_private *sp = netdev_priv(dev); void __iomem *ioaddr = sp->regs; + int rc; pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); - pci_enable_device(pdev); + + rc = pci_enable_device(pdev); + if (rc) + return rc; + pci_set_master(pdev); if (!netif_running(dev)) diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h index 6628fa622e2c..489c8b260dd8 100644 --- a/drivers/net/ehea/ehea.h +++ b/drivers/net/ehea/ehea.h @@ -39,7 +39,7 @@ #include <asm/io.h> #define DRV_NAME "ehea" -#define DRV_VERSION "EHEA_0070" +#define DRV_VERSION "EHEA_0071" /* eHEA capability flags */ #define DLPAR_PORT_ADD_REM 1 diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 1d1571cf322e..4c70a9301c1b 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -466,6 +466,8 @@ static struct ehea_cqe *ehea_proc_rwqes(struct net_device *dev, cqe->vlan_tag); else netif_receive_skb(skb); + + dev->last_rx = jiffies; } else { pr->p_stats.poll_receive_errors++; port_reset = ehea_treat_poll_error(pr, rq, cqe, @@ -1433,7 +1435,8 @@ static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) port->logical_port_id, reg_type, port->mac_addr, 0, hcallid); if (hret != H_SUCCESS) { - ehea_error("reg_dereg_bcmc failed (tagged)"); + ehea_error("%sregistering bc address failed (tagged)", + hcallid == H_REG_BCMC ? "" : "de"); ret = -EIO; goto out_herr; } @@ -1444,7 +1447,8 @@ static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) port->logical_port_id, reg_type, port->mac_addr, 0, hcallid); if (hret != H_SUCCESS) { - ehea_error("reg_dereg_bcmc failed (vlan)"); + ehea_error("%sregistering bc address failed (vlan)", + hcallid == H_REG_BCMC ? "" : "de"); ret = -EIO; } out_herr: @@ -2170,7 +2174,6 @@ static int ehea_up(struct net_device *dev) { int ret, i; struct ehea_port *port = netdev_priv(dev); - u64 mac_addr = 0; if (port->state == EHEA_PORT_UP) return 0; @@ -2189,18 +2192,10 @@ static int ehea_up(struct net_device *dev) goto out_clean_pr; } - ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); - if (ret) { - ret = -EIO; - ehea_error("out_clean_pr"); - goto out_clean_pr; - } - mac_addr = (*(u64*)dev->dev_addr) >> 16; - ret = ehea_reg_interrupts(dev); if (ret) { - ehea_error("out_dereg_bc"); - goto out_dereg_bc; + ehea_error("reg_interrupts failed. ret:%d", ret); + goto out_clean_pr; } for(i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { @@ -2226,9 +2221,6 @@ static int ehea_up(struct net_device *dev) out_free_irqs: ehea_free_interrupts(dev); -out_dereg_bc: - ehea_broadcast_reg_helper(port, H_DEREG_BCMC); - out_clean_pr: ehea_clean_all_portres(port); out: @@ -2273,7 +2265,6 @@ static int ehea_down(struct net_device *dev) &port->port_res[i].d_netdev->state)) msleep(1); - ehea_broadcast_reg_helper(port, H_DEREG_BCMC); port->state = EHEA_PORT_DOWN; ret = ehea_clean_all_portres(port); @@ -2655,12 +2646,18 @@ struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, INIT_WORK(&port->reset_task, ehea_reset_port); + ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); + if (ret) { + ret = -EIO; + goto out_unreg_port; + } + ehea_set_ethtool_ops(dev); ret = register_netdev(dev); if (ret) { ehea_error("register_netdev failed. ret=%d", ret); - goto out_unreg_port; + goto out_dereg_bc; } ret = ehea_get_jumboframe_status(port, &jumbo); @@ -2675,6 +2672,9 @@ struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, return port; +out_dereg_bc: + ehea_broadcast_reg_helper(port, H_DEREG_BCMC); + out_unreg_port: ehea_unregister_port(port); @@ -2694,6 +2694,7 @@ static void ehea_shutdown_single_port(struct ehea_port *port) { unregister_netdev(port->netdev); ehea_unregister_port(port); + ehea_broadcast_reg_helper(port, H_DEREG_BCMC); kfree(port->mc_list); free_netdev(port->netdev); port->adapter->active_ports--; diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 136827f8dc2e..6d1d50a19783 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -5137,12 +5137,10 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i goto out_unmap; np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size]; } - np->rx_skb = kmalloc(sizeof(struct nv_skb_map) * np->rx_ring_size, GFP_KERNEL); - np->tx_skb = kmalloc(sizeof(struct nv_skb_map) * np->tx_ring_size, GFP_KERNEL); + np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL); + np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL); if (!np->rx_skb || !np->tx_skb) goto out_freering; - memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size); - memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * np->tx_ring_size); dev->open = nv_open; dev->stop = nv_close; diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index d7a1a58de766..f92690555dd9 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -420,8 +420,18 @@ static phy_interface_t gfar_get_interface(struct net_device *dev) if (ecntrl & ECNTRL_REDUCED_MODE) { if (ecntrl & ECNTRL_REDUCED_MII_MODE) return PHY_INTERFACE_MODE_RMII; - else + else { + phy_interface_t interface = priv->einfo->interface; + + /* + * This isn't autodetected right now, so it must + * be set by the device tree or platform code. + */ + if (interface == PHY_INTERFACE_MODE_RGMII_ID) + return PHY_INTERFACE_MODE_RGMII_ID; + return PHY_INTERFACE_MODE_RGMII; + } } if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT) diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c index 84aa2117c0ee..355c6cf3d112 100644 --- a/drivers/net/hamradio/baycom_epp.c +++ b/drivers/net/hamradio/baycom_epp.c @@ -320,7 +320,7 @@ static int eppconfig(struct baycom_state *bc) sprintf(portarg, "%ld", bc->pdev->port->base); printk(KERN_DEBUG "%s: %s -s -p %s -m %s\n", bc_drvname, eppconfig_path, portarg, modearg); - return call_usermodehelper(eppconfig_path, argv, envp, 1); + return call_usermodehelper(eppconfig_path, argv, envp, UMH_WAIT_PROC); } /* ---------------------------------------------------------------------- */ diff --git a/drivers/net/hamradio/dmascc.c b/drivers/net/hamradio/dmascc.c index 3be8c5047599..205f09672492 100644 --- a/drivers/net/hamradio/dmascc.c +++ b/drivers/net/hamradio/dmascc.c @@ -453,8 +453,8 @@ static int __init setup_adapter(int card_base, int type, int n) int scc_base = card_base + hw[type].scc_offset; char *chipnames[] = CHIPNAMES; - /* Allocate memory */ - info = kmalloc(sizeof(struct scc_info), GFP_KERNEL | GFP_DMA); + /* Initialize what is necessary for write_scc and write_scc_data */ + info = kzalloc(sizeof(struct scc_info), GFP_KERNEL | GFP_DMA); if (!info) { printk(KERN_ERR "dmascc: " "could not allocate memory for %s at %#3x\n", @@ -462,8 +462,6 @@ static int __init setup_adapter(int card_base, int type, int n) goto out; } - /* Initialize what is necessary for write_scc and write_scc_data */ - memset(info, 0, sizeof(struct scc_info)); info->dev[0] = alloc_netdev(0, "", dev_setup); if (!info->dev[0]) { diff --git a/drivers/net/irda/irport.c b/drivers/net/irda/irport.c index 3078c419cb02..20732458f5ac 100644 --- a/drivers/net/irda/irport.c +++ b/drivers/net/irda/irport.c @@ -164,14 +164,13 @@ irport_open(int i, unsigned int iobase, unsigned int irq) /* Allocate memory if needed */ if (self->tx_buff.truesize > 0) { - self->tx_buff.head = kmalloc(self->tx_buff.truesize, + self->tx_buff.head = kzalloc(self->tx_buff.truesize, GFP_KERNEL); if (self->tx_buff.head == NULL) { IRDA_ERROR("%s(), can't allocate memory for " "transmit buffer!\n", __FUNCTION__); goto err_out4; } - memset(self->tx_buff.head, 0, self->tx_buff.truesize); } self->tx_buff.data = self->tx_buff.head; diff --git a/drivers/net/irda/irtty-sir.c b/drivers/net/irda/irtty-sir.c index ad1857364d51..6f5f697ec9f8 100644 --- a/drivers/net/irda/irtty-sir.c +++ b/drivers/net/irda/irtty-sir.c @@ -505,10 +505,9 @@ static int irtty_open(struct tty_struct *tty) } /* allocate private device info block */ - priv = kmalloc(sizeof(*priv), GFP_KERNEL); + priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) goto out_put; - memset(priv, 0, sizeof(*priv)); priv->magic = IRTTY_MAGIC; priv->tty = tty; diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c index 347d50cd77d4..0433c41f9029 100644 --- a/drivers/net/iseries_veth.c +++ b/drivers/net/iseries_veth.c @@ -822,10 +822,9 @@ static int veth_init_connection(u8 rlp) || ! HvLpConfig_doLpsCommunicateOnVirtualLan(this_lp, rlp) ) return 0; - cnx = kmalloc(sizeof(*cnx), GFP_KERNEL); + cnx = kzalloc(sizeof(*cnx), GFP_KERNEL); if (! cnx) return -ENOMEM; - memset(cnx, 0, sizeof(*cnx)); cnx->remote_lp = rlp; spin_lock_init(&cnx->lock); @@ -852,14 +851,13 @@ static int veth_init_connection(u8 rlp) if (rc != 0) return rc; - msgs = kmalloc(VETH_NUMBUFFERS * sizeof(struct veth_msg), GFP_KERNEL); + msgs = kcalloc(VETH_NUMBUFFERS, sizeof(struct veth_msg), GFP_KERNEL); if (! msgs) { veth_error("Can't allocate buffers for LPAR %d.\n", rlp); return -ENOMEM; } cnx->msgs = msgs; - memset(msgs, 0, VETH_NUMBUFFERS * sizeof(struct veth_msg)); for (i = 0; i < VETH_NUMBUFFERS; i++) { msgs[i].token = i; diff --git a/drivers/net/lance.c b/drivers/net/lance.c index a2f37e52b928..a4e5fab12628 100644 --- a/drivers/net/lance.c +++ b/drivers/net/lance.c @@ -533,11 +533,10 @@ static int __init lance_probe1(struct net_device *dev, int ioaddr, int irq, int dev->base_addr = ioaddr; /* Make certain the data structures used by the LANCE are aligned and DMAble. */ - lp = kmalloc(sizeof(*lp), GFP_DMA | GFP_KERNEL); + lp = kzalloc(sizeof(*lp), GFP_DMA | GFP_KERNEL); if(lp==NULL) return -ENODEV; if (lance_debug > 6) printk(" (#0x%05lx)", (unsigned long)lp); - memset(lp, 0, sizeof(*lp)); dev->priv = lp; lp->name = chipname; lp->rx_buffs = (unsigned long)kmalloc(PKT_BUF_SZ*RX_RING_SIZE, diff --git a/drivers/net/lguest_net.c b/drivers/net/lguest_net.c new file mode 100644 index 000000000000..112778652f7d --- /dev/null +++ b/drivers/net/lguest_net.c @@ -0,0 +1,354 @@ +/* A simple network driver for lguest. + * + * Copyright 2006 Rusty Russell <rusty@rustcorp.com.au> IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +//#define DEBUG +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/module.h> +#include <linux/mm_types.h> +#include <linux/io.h> +#include <linux/lguest_bus.h> + +#define SHARED_SIZE PAGE_SIZE +#define MAX_LANS 4 +#define NUM_SKBS 8 + +struct lguestnet_info +{ + /* The shared page(s). */ + struct lguest_net *peer; + unsigned long peer_phys; + unsigned long mapsize; + + /* The lguest_device I come from */ + struct lguest_device *lgdev; + + /* My peerid. */ + unsigned int me; + + /* Receive queue. */ + struct sk_buff *skb[NUM_SKBS]; + struct lguest_dma dma[NUM_SKBS]; +}; + +/* How many bytes left in this page. */ +static unsigned int rest_of_page(void *data) +{ + return PAGE_SIZE - ((unsigned long)data % PAGE_SIZE); +} + +/* Simple convention: offset 4 * peernum. */ +static unsigned long peer_key(struct lguestnet_info *info, unsigned peernum) +{ + return info->peer_phys + 4 * peernum; +} + +static void skb_to_dma(const struct sk_buff *skb, unsigned int headlen, + struct lguest_dma *dma) +{ + unsigned int i, seg; + + for (i = seg = 0; i < headlen; seg++, i += rest_of_page(skb->data+i)) { + dma->addr[seg] = virt_to_phys(skb->data + i); + dma->len[seg] = min((unsigned)(headlen - i), + rest_of_page(skb->data + i)); + } + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++, seg++) { + const skb_frag_t *f = &skb_shinfo(skb)->frags[i]; + /* Should not happen with MTU less than 64k - 2 * PAGE_SIZE. */ + if (seg == LGUEST_MAX_DMA_SECTIONS) { + printk("Woah dude! Megapacket!\n"); + break; + } + dma->addr[seg] = page_to_phys(f->page) + f->page_offset; + dma->len[seg] = f->size; + } + if (seg < LGUEST_MAX_DMA_SECTIONS) + dma->len[seg] = 0; +} + +/* We overload multicast bit to show promiscuous mode. */ +#define PROMISC_BIT 0x01 + +static void lguestnet_set_multicast(struct net_device *dev) +{ + struct lguestnet_info *info = netdev_priv(dev); + + if ((dev->flags & (IFF_PROMISC|IFF_ALLMULTI)) || dev->mc_count) + info->peer[info->me].mac[0] |= PROMISC_BIT; + else + info->peer[info->me].mac[0] &= ~PROMISC_BIT; +} + +static int promisc(struct lguestnet_info *info, unsigned int peer) +{ + return info->peer[peer].mac[0] & PROMISC_BIT; +} + +static int mac_eq(const unsigned char mac[ETH_ALEN], + struct lguestnet_info *info, unsigned int peer) +{ + /* Ignore multicast bit, which peer turns on to mean promisc. */ + if ((info->peer[peer].mac[0] & (~PROMISC_BIT)) != mac[0]) + return 0; + return memcmp(mac+1, info->peer[peer].mac+1, ETH_ALEN-1) == 0; +} + +static void transfer_packet(struct net_device *dev, + struct sk_buff *skb, + unsigned int peernum) +{ + struct lguestnet_info *info = netdev_priv(dev); + struct lguest_dma dma; + + skb_to_dma(skb, skb_headlen(skb), &dma); + pr_debug("xfer length %04x (%u)\n", htons(skb->len), skb->len); + + lguest_send_dma(peer_key(info, peernum), &dma); + if (dma.used_len != skb->len) { + dev->stats.tx_carrier_errors++; + pr_debug("Bad xfer to peer %i: %i of %i (dma %p/%i)\n", + peernum, dma.used_len, skb->len, + (void *)dma.addr[0], dma.len[0]); + } else { + dev->stats.tx_bytes += skb->len; + dev->stats.tx_packets++; + } +} + +static int unused_peer(const struct lguest_net peer[], unsigned int num) +{ + return peer[num].mac[0] == 0; +} + +static int lguestnet_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + unsigned int i; + int broadcast; + struct lguestnet_info *info = netdev_priv(dev); + const unsigned char *dest = ((struct ethhdr *)skb->data)->h_dest; + + pr_debug("%s: xmit %02x:%02x:%02x:%02x:%02x:%02x\n", + dev->name, dest[0],dest[1],dest[2],dest[3],dest[4],dest[5]); + + broadcast = is_multicast_ether_addr(dest); + for (i = 0; i < info->mapsize/sizeof(struct lguest_net); i++) { + if (i == info->me || unused_peer(info->peer, i)) + continue; + + if (!broadcast && !promisc(info, i) && !mac_eq(dest, info, i)) + continue; + + pr_debug("lguestnet %s: sending from %i to %i\n", + dev->name, info->me, i); + transfer_packet(dev, skb, i); + } + dev_kfree_skb(skb); + return 0; +} + +/* Find a new skb to put in this slot in shared mem. */ +static int fill_slot(struct net_device *dev, unsigned int slot) +{ + struct lguestnet_info *info = netdev_priv(dev); + /* Try to create and register a new one. */ + info->skb[slot] = netdev_alloc_skb(dev, ETH_HLEN + ETH_DATA_LEN); + if (!info->skb[slot]) { + printk("%s: could not fill slot %i\n", dev->name, slot); + return -ENOMEM; + } + + skb_to_dma(info->skb[slot], ETH_HLEN + ETH_DATA_LEN, &info->dma[slot]); + wmb(); + /* Now we tell hypervisor it can use the slot. */ + info->dma[slot].used_len = 0; + return 0; +} + +static irqreturn_t lguestnet_rcv(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + struct lguestnet_info *info = netdev_priv(dev); + unsigned int i, done = 0; + + for (i = 0; i < ARRAY_SIZE(info->dma); i++) { + unsigned int length; + struct sk_buff *skb; + + length = info->dma[i].used_len; + if (length == 0) + continue; + + done++; + skb = info->skb[i]; + fill_slot(dev, i); + + if (length < ETH_HLEN || length > ETH_HLEN + ETH_DATA_LEN) { + pr_debug(KERN_WARNING "%s: unbelievable skb len: %i\n", + dev->name, length); + dev_kfree_skb(skb); + continue; + } + + skb_put(skb, length); + skb->protocol = eth_type_trans(skb, dev); + /* This is a reliable transport. */ + if (dev->features & NETIF_F_NO_CSUM) + skb->ip_summed = CHECKSUM_UNNECESSARY; + pr_debug("Receiving skb proto 0x%04x len %i type %i\n", + ntohs(skb->protocol), skb->len, skb->pkt_type); + + dev->stats.rx_bytes += skb->len; + dev->stats.rx_packets++; + netif_rx(skb); + } + return done ? IRQ_HANDLED : IRQ_NONE; +} + +static int lguestnet_open(struct net_device *dev) +{ + int i; + struct lguestnet_info *info = netdev_priv(dev); + + /* Set up our MAC address */ + memcpy(info->peer[info->me].mac, dev->dev_addr, ETH_ALEN); + + /* Turn on promisc mode if needed */ + lguestnet_set_multicast(dev); + + for (i = 0; i < ARRAY_SIZE(info->dma); i++) { + if (fill_slot(dev, i) != 0) + goto cleanup; + } + if (lguest_bind_dma(peer_key(info,info->me), info->dma, + NUM_SKBS, lgdev_irq(info->lgdev)) != 0) + goto cleanup; + return 0; + +cleanup: + while (--i >= 0) + dev_kfree_skb(info->skb[i]); + return -ENOMEM; +} + +static int lguestnet_close(struct net_device *dev) +{ + unsigned int i; + struct lguestnet_info *info = netdev_priv(dev); + + /* Clear all trace: others might deliver packets, we'll ignore it. */ + memset(&info->peer[info->me], 0, sizeof(info->peer[info->me])); + + /* Deregister sg lists. */ + lguest_unbind_dma(peer_key(info, info->me), info->dma); + for (i = 0; i < ARRAY_SIZE(info->dma); i++) + dev_kfree_skb(info->skb[i]); + return 0; +} + +static int lguestnet_probe(struct lguest_device *lgdev) +{ + int err, irqf = IRQF_SHARED; + struct net_device *dev; + struct lguestnet_info *info; + struct lguest_device_desc *desc = &lguest_devices[lgdev->index]; + + pr_debug("lguest_net: probing for device %i\n", lgdev->index); + + dev = alloc_etherdev(sizeof(struct lguestnet_info)); + if (!dev) + return -ENOMEM; + + SET_MODULE_OWNER(dev); + + /* Ethernet defaults with some changes */ + ether_setup(dev); + dev->set_mac_address = NULL; + + dev->dev_addr[0] = 0x02; /* set local assignment bit (IEEE802) */ + dev->dev_addr[1] = 0x00; + memcpy(&dev->dev_addr[2], &lguest_data.guestid, 2); + dev->dev_addr[4] = 0x00; + dev->dev_addr[5] = 0x00; + + dev->open = lguestnet_open; + dev->stop = lguestnet_close; + dev->hard_start_xmit = lguestnet_start_xmit; + + /* Turning on/off promisc will call dev->set_multicast_list. + * We don't actually support multicast yet */ + dev->set_multicast_list = lguestnet_set_multicast; + SET_NETDEV_DEV(dev, &lgdev->dev); + if (desc->features & LGUEST_NET_F_NOCSUM) + dev->features = NETIF_F_SG|NETIF_F_NO_CSUM; + + info = netdev_priv(dev); + info->mapsize = PAGE_SIZE * desc->num_pages; + info->peer_phys = ((unsigned long)desc->pfn << PAGE_SHIFT); + info->lgdev = lgdev; + info->peer = lguest_map(info->peer_phys, desc->num_pages); + if (!info->peer) { + err = -ENOMEM; + goto free; + } + + /* This stores our peerid (upper bits reserved for future). */ + info->me = (desc->features & (info->mapsize-1)); + + err = register_netdev(dev); + if (err) { + pr_debug("lguestnet: registering device failed\n"); + goto unmap; + } + + if (lguest_devices[lgdev->index].features & LGUEST_DEVICE_F_RANDOMNESS) + irqf |= IRQF_SAMPLE_RANDOM; + if (request_irq(lgdev_irq(lgdev), lguestnet_rcv, irqf, "lguestnet", + dev) != 0) { + pr_debug("lguestnet: cannot get irq %i\n", lgdev_irq(lgdev)); + goto unregister; + } + + pr_debug("lguestnet: registered device %s\n", dev->name); + lgdev->private = dev; + return 0; + +unregister: + unregister_netdev(dev); +unmap: + lguest_unmap(info->peer); +free: + free_netdev(dev); + return err; +} + +static struct lguest_driver lguestnet_drv = { + .name = "lguestnet", + .owner = THIS_MODULE, + .device_type = LGUEST_DEVICE_T_NET, + .probe = lguestnet_probe, +}; + +static __init int lguestnet_init(void) +{ + return register_lguest_driver(&lguestnet_drv); +} +module_init(lguestnet_init); + +MODULE_DESCRIPTION("Lguest network driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/mlx4/catas.c b/drivers/net/mlx4/catas.c index 1bb088aeaf71..6b32ec94b3a8 100644 --- a/drivers/net/mlx4/catas.c +++ b/drivers/net/mlx4/catas.c @@ -30,41 +30,133 @@ * SOFTWARE. */ +#include <linux/workqueue.h> + #include "mlx4.h" -void mlx4_handle_catas_err(struct mlx4_dev *dev) +enum { + MLX4_CATAS_POLL_INTERVAL = 5 * HZ, +}; + +static DEFINE_SPINLOCK(catas_lock); + +static LIST_HEAD(catas_list); +static struct workqueue_struct *catas_wq; +static struct work_struct catas_work; + +static int internal_err_reset = 1; +module_param(internal_err_reset, int, 0644); +MODULE_PARM_DESC(internal_err_reset, + "Reset device on internal errors if non-zero (default 1)"); + +static void dump_err_buf(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int i; - mlx4_err(dev, "Catastrophic error detected:\n"); + mlx4_err(dev, "Internal error detected:\n"); for (i = 0; i < priv->fw.catas_size; ++i) mlx4_err(dev, " buf[%02x]: %08x\n", i, swab32(readl(priv->catas_err.map + i))); +} - mlx4_dispatch_event(dev, MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR, 0, 0); +static void poll_catas(unsigned long dev_ptr) +{ + struct mlx4_dev *dev = (struct mlx4_dev *) dev_ptr; + struct mlx4_priv *priv = mlx4_priv(dev); + + if (readl(priv->catas_err.map)) { + dump_err_buf(dev); + + mlx4_dispatch_event(dev, MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR, 0, 0); + + if (internal_err_reset) { + spin_lock(&catas_lock); + list_add(&priv->catas_err.list, &catas_list); + spin_unlock(&catas_lock); + + queue_work(catas_wq, &catas_work); + } + } else + mod_timer(&priv->catas_err.timer, + round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL)); } -void mlx4_map_catas_buf(struct mlx4_dev *dev) +static void catas_reset(struct work_struct *work) +{ + struct mlx4_priv *priv, *tmppriv; + struct mlx4_dev *dev; + + LIST_HEAD(tlist); + int ret; + + spin_lock_irq(&catas_lock); + list_splice_init(&catas_list, &tlist); + spin_unlock_irq(&catas_lock); + + list_for_each_entry_safe(priv, tmppriv, &tlist, catas_err.list) { + ret = mlx4_restart_one(priv->dev.pdev); + dev = &priv->dev; + if (ret) + mlx4_err(dev, "Reset failed (%d)\n", ret); + else + mlx4_dbg(dev, "Reset succeeded\n"); + } +} + +void mlx4_start_catas_poll(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); unsigned long addr; + INIT_LIST_HEAD(&priv->catas_err.list); + init_timer(&priv->catas_err.timer); + priv->catas_err.map = NULL; + addr = pci_resource_start(dev->pdev, priv->fw.catas_bar) + priv->fw.catas_offset; priv->catas_err.map = ioremap(addr, priv->fw.catas_size * 4); - if (!priv->catas_err.map) - mlx4_warn(dev, "Failed to map catastrophic error buffer at 0x%lx\n", + if (!priv->catas_err.map) { + mlx4_warn(dev, "Failed to map internal error buffer at 0x%lx\n", addr); + return; + } + priv->catas_err.timer.data = (unsigned long) dev; + priv->catas_err.timer.function = poll_catas; + priv->catas_err.timer.expires = + round_jiffies(jiffies + MLX4_CATAS_POLL_INTERVAL); + add_timer(&priv->catas_err.timer); } -void mlx4_unmap_catas_buf(struct mlx4_dev *dev) +void mlx4_stop_catas_poll(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); + del_timer_sync(&priv->catas_err.timer); + if (priv->catas_err.map) iounmap(priv->catas_err.map); + + spin_lock_irq(&catas_lock); + list_del(&priv->catas_err.list); + spin_unlock_irq(&catas_lock); +} + +int __init mlx4_catas_init(void) +{ + INIT_WORK(&catas_work, catas_reset); + + catas_wq = create_singlethread_workqueue("mlx4_err"); + if (!catas_wq) + return -ENOMEM; + + return 0; +} + +void mlx4_catas_cleanup(void) +{ + destroy_workqueue(catas_wq); } diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c index 27a82cecd693..2095c843fa15 100644 --- a/drivers/net/mlx4/eq.c +++ b/drivers/net/mlx4/eq.c @@ -89,14 +89,12 @@ struct mlx4_eq_context { (1ull << MLX4_EVENT_TYPE_PATH_MIG_FAILED) | \ (1ull << MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \ (1ull << MLX4_EVENT_TYPE_WQ_ACCESS_ERROR) | \ - (1ull << MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR) | \ (1ull << MLX4_EVENT_TYPE_PORT_CHANGE) | \ (1ull << MLX4_EVENT_TYPE_ECC_DETECT) | \ (1ull << MLX4_EVENT_TYPE_SRQ_CATAS_ERROR) | \ (1ull << MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE) | \ (1ull << MLX4_EVENT_TYPE_SRQ_LIMIT) | \ (1ull << MLX4_EVENT_TYPE_CMD)) -#define MLX4_CATAS_EVENT_MASK (1ull << MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR) struct mlx4_eqe { u8 reserved1; @@ -264,7 +262,7 @@ static irqreturn_t mlx4_interrupt(int irq, void *dev_ptr) writel(priv->eq_table.clr_mask, priv->eq_table.clr_int); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) work |= mlx4_eq_int(dev, &priv->eq_table.eq[i]); return IRQ_RETVAL(work); @@ -281,14 +279,6 @@ static irqreturn_t mlx4_msi_x_interrupt(int irq, void *eq_ptr) return IRQ_HANDLED; } -static irqreturn_t mlx4_catas_interrupt(int irq, void *dev_ptr) -{ - mlx4_handle_catas_err(dev_ptr); - - /* MSI-X vectors always belong to us */ - return IRQ_HANDLED; -} - static int mlx4_MAP_EQ(struct mlx4_dev *dev, u64 event_mask, int unmap, int eq_num) { @@ -490,11 +480,9 @@ static void mlx4_free_irqs(struct mlx4_dev *dev) if (eq_table->have_irq) free_irq(dev->pdev->irq, dev); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) if (eq_table->eq[i].have_irq) free_irq(eq_table->eq[i].irq, eq_table->eq + i); - if (eq_table->eq[MLX4_EQ_CATAS].have_irq) - free_irq(eq_table->eq[MLX4_EQ_CATAS].irq, dev); } static int __devinit mlx4_map_clr_int(struct mlx4_dev *dev) @@ -598,32 +586,19 @@ int __devinit mlx4_init_eq_table(struct mlx4_dev *dev) if (dev->flags & MLX4_FLAG_MSI_X) { static const char *eq_name[] = { [MLX4_EQ_COMP] = DRV_NAME " (comp)", - [MLX4_EQ_ASYNC] = DRV_NAME " (async)", - [MLX4_EQ_CATAS] = DRV_NAME " (catas)" + [MLX4_EQ_ASYNC] = DRV_NAME " (async)" }; - err = mlx4_create_eq(dev, 1, MLX4_EQ_CATAS, - &priv->eq_table.eq[MLX4_EQ_CATAS]); - if (err) - goto err_out_async; - - for (i = 0; i < MLX4_EQ_CATAS; ++i) { + for (i = 0; i < MLX4_NUM_EQ; ++i) { err = request_irq(priv->eq_table.eq[i].irq, mlx4_msi_x_interrupt, 0, eq_name[i], priv->eq_table.eq + i); if (err) - goto err_out_catas; + goto err_out_async; priv->eq_table.eq[i].have_irq = 1; } - err = request_irq(priv->eq_table.eq[MLX4_EQ_CATAS].irq, - mlx4_catas_interrupt, 0, - eq_name[MLX4_EQ_CATAS], dev); - if (err) - goto err_out_catas; - - priv->eq_table.eq[MLX4_EQ_CATAS].have_irq = 1; } else { err = request_irq(dev->pdev->irq, mlx4_interrupt, IRQF_SHARED, DRV_NAME, dev); @@ -639,22 +614,11 @@ int __devinit mlx4_init_eq_table(struct mlx4_dev *dev) mlx4_warn(dev, "MAP_EQ for async EQ %d failed (%d)\n", priv->eq_table.eq[MLX4_EQ_ASYNC].eqn, err); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) eq_set_ci(&priv->eq_table.eq[i], 1); - if (dev->flags & MLX4_FLAG_MSI_X) { - err = mlx4_MAP_EQ(dev, MLX4_CATAS_EVENT_MASK, 0, - priv->eq_table.eq[MLX4_EQ_CATAS].eqn); - if (err) - mlx4_warn(dev, "MAP_EQ for catas EQ %d failed (%d)\n", - priv->eq_table.eq[MLX4_EQ_CATAS].eqn, err); - } - return 0; -err_out_catas: - mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_CATAS]); - err_out_async: mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_ASYNC]); @@ -675,19 +639,13 @@ void mlx4_cleanup_eq_table(struct mlx4_dev *dev) struct mlx4_priv *priv = mlx4_priv(dev); int i; - if (dev->flags & MLX4_FLAG_MSI_X) - mlx4_MAP_EQ(dev, MLX4_CATAS_EVENT_MASK, 1, - priv->eq_table.eq[MLX4_EQ_CATAS].eqn); - mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 1, priv->eq_table.eq[MLX4_EQ_ASYNC].eqn); mlx4_free_irqs(dev); - for (i = 0; i < MLX4_EQ_CATAS; ++i) + for (i = 0; i < MLX4_NUM_EQ; ++i) mlx4_free_eq(dev, &priv->eq_table.eq[i]); - if (dev->flags & MLX4_FLAG_MSI_X) - mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_CATAS]); mlx4_unmap_clr_int(dev); diff --git a/drivers/net/mlx4/intf.c b/drivers/net/mlx4/intf.c index 9ae951bf6aa6..be5d9e90ccf2 100644 --- a/drivers/net/mlx4/intf.c +++ b/drivers/net/mlx4/intf.c @@ -142,6 +142,7 @@ int mlx4_register_device(struct mlx4_dev *dev) mlx4_add_device(intf, priv); mutex_unlock(&intf_mutex); + mlx4_start_catas_poll(dev); return 0; } @@ -151,6 +152,7 @@ void mlx4_unregister_device(struct mlx4_dev *dev) struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_interface *intf; + mlx4_stop_catas_poll(dev); mutex_lock(&intf_mutex); list_for_each_entry(intf, &intf_list, list) diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index a4f2e0475a71..4dc9dc19b716 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -78,7 +78,7 @@ static const char mlx4_version[] __devinitdata = static struct mlx4_profile default_profile = { .num_qp = 1 << 16, .num_srq = 1 << 16, - .rdmarc_per_qp = 4, + .rdmarc_per_qp = 1 << 4, .num_cq = 1 << 16, .num_mcg = 1 << 13, .num_mpt = 1 << 17, @@ -583,13 +583,11 @@ static int __devinit mlx4_setup_hca(struct mlx4_dev *dev) goto err_pd_table_free; } - mlx4_map_catas_buf(dev); - err = mlx4_init_eq_table(dev); if (err) { mlx4_err(dev, "Failed to initialize " "event queue table, aborting.\n"); - goto err_catas_buf; + goto err_mr_table_free; } err = mlx4_cmd_use_events(dev); @@ -659,8 +657,7 @@ err_cmd_poll: err_eq_table_free: mlx4_cleanup_eq_table(dev); -err_catas_buf: - mlx4_unmap_catas_buf(dev); +err_mr_table_free: mlx4_cleanup_mr_table(dev); err_pd_table_free: @@ -836,9 +833,6 @@ err_cleanup: mlx4_cleanup_cq_table(dev); mlx4_cmd_use_polling(dev); mlx4_cleanup_eq_table(dev); - - mlx4_unmap_catas_buf(dev); - mlx4_cleanup_mr_table(dev); mlx4_cleanup_pd_table(dev); mlx4_cleanup_uar_table(dev); @@ -885,9 +879,6 @@ static void __devexit mlx4_remove_one(struct pci_dev *pdev) mlx4_cleanup_cq_table(dev); mlx4_cmd_use_polling(dev); mlx4_cleanup_eq_table(dev); - - mlx4_unmap_catas_buf(dev); - mlx4_cleanup_mr_table(dev); mlx4_cleanup_pd_table(dev); @@ -908,6 +899,12 @@ static void __devexit mlx4_remove_one(struct pci_dev *pdev) } } +int mlx4_restart_one(struct pci_dev *pdev) +{ + mlx4_remove_one(pdev); + return mlx4_init_one(pdev, NULL); +} + static struct pci_device_id mlx4_pci_table[] = { { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */ { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */ @@ -930,6 +927,10 @@ static int __init mlx4_init(void) { int ret; + ret = mlx4_catas_init(); + if (ret) + return ret; + ret = pci_register_driver(&mlx4_driver); return ret < 0 ? ret : 0; } @@ -937,6 +938,7 @@ static int __init mlx4_init(void) static void __exit mlx4_cleanup(void) { pci_unregister_driver(&mlx4_driver); + mlx4_catas_cleanup(); } module_init(mlx4_init); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index d9c91a71fc87..be304a7c2c91 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -39,6 +39,7 @@ #include <linux/mutex.h> #include <linux/radix-tree.h> +#include <linux/timer.h> #include <linux/mlx4/device.h> #include <linux/mlx4/doorbell.h> @@ -67,7 +68,6 @@ enum { enum { MLX4_EQ_ASYNC, MLX4_EQ_COMP, - MLX4_EQ_CATAS, MLX4_NUM_EQ }; @@ -248,7 +248,8 @@ struct mlx4_mcg_table { struct mlx4_catas_err { u32 __iomem *map; - int size; + struct timer_list timer; + struct list_head list; }; struct mlx4_priv { @@ -311,9 +312,11 @@ void mlx4_cleanup_qp_table(struct mlx4_dev *dev); void mlx4_cleanup_srq_table(struct mlx4_dev *dev); void mlx4_cleanup_mcg_table(struct mlx4_dev *dev); -void mlx4_map_catas_buf(struct mlx4_dev *dev); -void mlx4_unmap_catas_buf(struct mlx4_dev *dev); - +void mlx4_start_catas_poll(struct mlx4_dev *dev); +void mlx4_stop_catas_poll(struct mlx4_dev *dev); +int mlx4_catas_init(void); +void mlx4_catas_cleanup(void); +int mlx4_restart_one(struct pci_dev *pdev); int mlx4_register_device(struct mlx4_dev *dev); void mlx4_unregister_device(struct mlx4_dev *dev); void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_event type, diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c index 3450051ae56b..6bb48ba80964 100644 --- a/drivers/net/natsemi.c +++ b/drivers/net/natsemi.c @@ -671,7 +671,7 @@ static ssize_t natsemi_show_##_name(struct device *dev, \ #define NATSEMI_CREATE_FILE(_dev, _name) \ device_create_file(&_dev->dev, &dev_attr_##_name) #define NATSEMI_REMOVE_FILE(_dev, _name) \ - device_create_file(&_dev->dev, &dev_attr_##_name) + device_remove_file(&_dev->dev, &dev_attr_##_name) NATSEMI_ATTR(dspcfg_workaround); diff --git a/drivers/net/ne2k-pci.c b/drivers/net/ne2k-pci.c index 995c0a5d4066..cfdeaf7aa163 100644 --- a/drivers/net/ne2k-pci.c +++ b/drivers/net/ne2k-pci.c @@ -669,10 +669,15 @@ static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state) static int ne2k_pci_resume (struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata (pdev); + int rc; pci_set_power_state(pdev, 0); pci_restore_state(pdev); - pci_enable_device(pdev); + + rc = pci_enable_device(pdev); + if (rc) + return rc; + NS8390_init(dev, 1); netif_device_attach(dev); diff --git a/drivers/net/ni5010.c b/drivers/net/ni5010.c index 3d5b4232f65f..22a3b3dc7d89 100644 --- a/drivers/net/ni5010.c +++ b/drivers/net/ni5010.c @@ -670,14 +670,10 @@ static void ni5010_set_multicast_list(struct net_device *dev) PRINTK2((KERN_DEBUG "%s: entering set_multicast_list\n", dev->name)); - if (dev->flags&IFF_PROMISC || dev->flags&IFF_ALLMULTI) { + if (dev->flags&IFF_PROMISC || dev->flags&IFF_ALLMULTI || dev->mc_list) { dev->flags |= IFF_PROMISC; outb(RMD_PROMISC, EDLC_RMODE); /* Enable promiscuous mode */ PRINTK((KERN_DEBUG "%s: Entering promiscuous mode\n", dev->name)); - } else if (dev->mc_list) { - /* Sorry, multicast not supported */ - PRINTK((KERN_DEBUG "%s: No multicast, entering broadcast mode\n", dev->name)); - outb(RMD_BROADCAST, EDLC_RMODE); } else { PRINTK((KERN_DEBUG "%s: Entering broadcast mode\n", dev->name)); outb(RMD_BROADCAST, EDLC_RMODE); /* Disable promiscuous mode, use normal mode */ diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c index 104aab3c957f..ea80e6cb3dec 100644 --- a/drivers/net/ns83820.c +++ b/drivers/net/ns83820.c @@ -1582,7 +1582,7 @@ static void ns83820_set_multicast(struct net_device *ndev) else and_mask &= ~(RFCR_AAU | RFCR_AAM); - if (ndev->flags & IFF_ALLMULTI) + if (ndev->flags & IFF_ALLMULTI || ndev->mc_count) or_mask |= RFCR_AAM; else and_mask &= ~RFCR_AAM; diff --git a/drivers/net/pcmcia/com20020_cs.c b/drivers/net/pcmcia/com20020_cs.c index 0d1c7a41c9c6..ea9414c4d900 100644 --- a/drivers/net/pcmcia/com20020_cs.c +++ b/drivers/net/pcmcia/com20020_cs.c @@ -147,7 +147,7 @@ static int com20020_probe(struct pcmcia_device *p_dev) DEBUG(0, "com20020_attach()\n"); /* Create new network device */ - info = kmalloc(sizeof(struct com20020_dev_t), GFP_KERNEL); + info = kzalloc(sizeof(struct com20020_dev_t), GFP_KERNEL); if (!info) goto fail_alloc_info; @@ -155,7 +155,6 @@ static int com20020_probe(struct pcmcia_device *p_dev) if (!dev) goto fail_alloc_dev; - memset(info, 0, sizeof(struct com20020_dev_t)); lp = dev->priv; lp->timeout = timeout; lp->backplane = backplane; diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c index 4ecb8ca5a992..4eafa4f42cff 100644 --- a/drivers/net/pcmcia/ibmtr_cs.c +++ b/drivers/net/pcmcia/ibmtr_cs.c @@ -146,9 +146,8 @@ static int __devinit ibmtr_attach(struct pcmcia_device *link) DEBUG(0, "ibmtr_attach()\n"); /* Create new token-ring device */ - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; - memset(info,0,sizeof(*info)); dev = alloc_trdev(sizeof(struct tok_info)); if (!dev) { kfree(info); diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c index 596222b260d6..6a5385647911 100644 --- a/drivers/net/phy/vitesse.c +++ b/drivers/net/phy/vitesse.c @@ -21,6 +21,10 @@ /* Vitesse Extended Control Register 1 */ #define MII_VSC8244_EXT_CON1 0x17 #define MII_VSC8244_EXTCON1_INIT 0x0000 +#define MII_VSC8244_EXTCON1_TX_SKEW_MASK 0x0c00 +#define MII_VSC8244_EXTCON1_RX_SKEW_MASK 0x0300 +#define MII_VSC8244_EXTCON1_TX_SKEW 0x0800 +#define MII_VSC8244_EXTCON1_RX_SKEW 0x0200 /* Vitesse Interrupt Mask Register */ #define MII_VSC8244_IMASK 0x19 @@ -39,7 +43,7 @@ /* Vitesse Auxiliary Control/Status Register */ #define MII_VSC8244_AUX_CONSTAT 0x1c -#define MII_VSC8244_AUXCONSTAT_INIT 0x0004 +#define MII_VSC8244_AUXCONSTAT_INIT 0x0000 #define MII_VSC8244_AUXCONSTAT_DUPLEX 0x0020 #define MII_VSC8244_AUXCONSTAT_SPEED 0x0018 #define MII_VSC8244_AUXCONSTAT_GBIT 0x0010 @@ -51,6 +55,7 @@ MODULE_LICENSE("GPL"); static int vsc824x_config_init(struct phy_device *phydev) { + int extcon; int err; err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT, @@ -58,14 +63,34 @@ static int vsc824x_config_init(struct phy_device *phydev) if (err < 0) return err; - err = phy_write(phydev, MII_VSC8244_EXT_CON1, - MII_VSC8244_EXTCON1_INIT); + extcon = phy_read(phydev, MII_VSC8244_EXT_CON1); + + if (extcon < 0) + return err; + + extcon &= ~(MII_VSC8244_EXTCON1_TX_SKEW_MASK | + MII_VSC8244_EXTCON1_RX_SKEW_MASK); + + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) + extcon |= (MII_VSC8244_EXTCON1_TX_SKEW | + MII_VSC8244_EXTCON1_RX_SKEW); + + err = phy_write(phydev, MII_VSC8244_EXT_CON1, extcon); + return err; } static int vsc824x_ack_interrupt(struct phy_device *phydev) { - int err = phy_read(phydev, MII_VSC8244_ISTAT); + int err = 0; + + /* + * Don't bother to ACK the interrupts if interrupts + * are disabled. The 824x cannot clear the interrupts + * if they are disabled. + */ + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) + err = phy_read(phydev, MII_VSC8244_ISTAT); return (err < 0) ? err : 0; } @@ -77,8 +102,19 @@ static int vsc824x_config_intr(struct phy_device *phydev) if (phydev->interrupts == PHY_INTERRUPT_ENABLED) err = phy_write(phydev, MII_VSC8244_IMASK, MII_VSC8244_IMASK_MASK); - else + else { + /* + * The Vitesse PHY cannot clear the interrupt + * once it has disabled them, so we clear them first + */ + err = phy_read(phydev, MII_VSC8244_ISTAT); + + if (err) + return err; + err = phy_write(phydev, MII_VSC8244_IMASK, 0); + } + return err; } diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c index caabbc408c34..27f5b904f48e 100644 --- a/drivers/net/ppp_async.c +++ b/drivers/net/ppp_async.c @@ -159,12 +159,11 @@ ppp_asynctty_open(struct tty_struct *tty) int err; err = -ENOMEM; - ap = kmalloc(sizeof(*ap), GFP_KERNEL); + ap = kzalloc(sizeof(*ap), GFP_KERNEL); if (ap == 0) goto out; /* initialize the asyncppp structure */ - memset(ap, 0, sizeof(*ap)); ap->tty = tty; ap->mru = PPP_MRU; spin_lock_init(&ap->xmit_lock); diff --git a/drivers/net/ppp_deflate.c b/drivers/net/ppp_deflate.c index 72c8d6628f58..eb98b661efba 100644 --- a/drivers/net/ppp_deflate.c +++ b/drivers/net/ppp_deflate.c @@ -121,12 +121,11 @@ static void *z_comp_alloc(unsigned char *options, int opt_len) if (w_size < DEFLATE_MIN_SIZE || w_size > DEFLATE_MAX_SIZE) return NULL; - state = kmalloc(sizeof(*state), + state = kzalloc(sizeof(*state), GFP_KERNEL); if (state == NULL) return NULL; - memset (state, 0, sizeof (struct ppp_deflate_state)); state->strm.next_in = NULL; state->w_size = w_size; state->strm.workspace = vmalloc(zlib_deflate_workspacesize()); @@ -341,11 +340,10 @@ static void *z_decomp_alloc(unsigned char *options, int opt_len) if (w_size < DEFLATE_MIN_SIZE || w_size > DEFLATE_MAX_SIZE) return NULL; - state = kmalloc(sizeof(*state), GFP_KERNEL); + state = kzalloc(sizeof(*state), GFP_KERNEL); if (state == NULL) return NULL; - memset (state, 0, sizeof (struct ppp_deflate_state)); state->w_size = w_size; state->strm.next_out = NULL; state->strm.workspace = kmalloc(zlib_inflate_workspacesize(), diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 3ef0092dc09c..ef3325b69233 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -2684,8 +2684,7 @@ static void __exit ppp_cleanup(void) if (atomic_read(&ppp_unit_count) || atomic_read(&channel_count)) printk(KERN_ERR "PPP: removing module but units remain!\n"); cardmap_destroy(&all_ppp_units); - if (unregister_chrdev(PPP_MAJOR, "ppp") != 0) - printk(KERN_ERR "PPP: failed to unregister PPP device\n"); + unregister_chrdev(PPP_MAJOR, "ppp"); device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0)); class_destroy(ppp_class); } diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c index d5bdd2574659..f79cf87a2bff 100644 --- a/drivers/net/ppp_mppe.c +++ b/drivers/net/ppp_mppe.c @@ -200,11 +200,10 @@ static void *mppe_alloc(unsigned char *options, int optlen) || options[0] != CI_MPPE || options[1] != CILEN_MPPE) goto out; - state = kmalloc(sizeof(*state), GFP_KERNEL); + state = kzalloc(sizeof(*state), GFP_KERNEL); if (state == NULL) goto out; - memset(state, 0, sizeof(*state)); state->arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(state->arc4)) { diff --git a/drivers/net/ppp_synctty.c b/drivers/net/ppp_synctty.c index 5918fab38349..ce64032a465a 100644 --- a/drivers/net/ppp_synctty.c +++ b/drivers/net/ppp_synctty.c @@ -207,13 +207,12 @@ ppp_sync_open(struct tty_struct *tty) struct syncppp *ap; int err; - ap = kmalloc(sizeof(*ap), GFP_KERNEL); + ap = kzalloc(sizeof(*ap), GFP_KERNEL); err = -ENOMEM; if (ap == 0) goto out; /* initialize the syncppp structure */ - memset(ap, 0, sizeof(*ap)); ap->tty = tty; ap->mru = PPP_MRU; spin_lock_init(&ap->xmit_lock); diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c index 5891a0fbdc8b..f87176055d0e 100644 --- a/drivers/net/pppol2tp.c +++ b/drivers/net/pppol2tp.c @@ -824,6 +824,7 @@ static int pppol2tp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msgh struct pppol2tp_session *session; struct pppol2tp_tunnel *tunnel; struct udphdr *uh; + unsigned int len; error = -ENOTCONN; if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED)) @@ -912,14 +913,15 @@ static int pppol2tp_sendmsg(struct kiocb *iocb, struct socket *sock, struct msgh } /* Queue the packet to IP for output */ + len = skb->len; error = ip_queue_xmit(skb, 1); /* Update stats */ if (error >= 0) { tunnel->stats.tx_packets++; - tunnel->stats.tx_bytes += skb->len; + tunnel->stats.tx_bytes += len; session->stats.tx_packets++; - session->stats.tx_bytes += skb->len; + session->stats.tx_bytes += len; } else { tunnel->stats.tx_errors++; session->stats.tx_errors++; @@ -958,6 +960,7 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) __wsum csum = 0; struct sk_buff *skb2 = NULL; struct udphdr *uh; + unsigned int len; if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED)) goto abort; @@ -1046,18 +1049,25 @@ static int pppol2tp_xmit(struct ppp_channel *chan, struct sk_buff *skb) printk("\n"); } + memset(&(IPCB(skb2)->opt), 0, sizeof(IPCB(skb2)->opt)); + IPCB(skb2)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED | + IPSKB_REROUTED); + nf_reset(skb2); + /* Get routing info from the tunnel socket */ + dst_release(skb2->dst); skb2->dst = sk_dst_get(sk_tun); /* Queue the packet to IP for output */ + len = skb2->len; rc = ip_queue_xmit(skb2, 1); /* Update stats */ if (rc >= 0) { tunnel->stats.tx_packets++; - tunnel->stats.tx_bytes += skb2->len; + tunnel->stats.tx_bytes += len; session->stats.tx_packets++; - session->stats.tx_bytes += skb2->len; + session->stats.tx_bytes += len; } else { tunnel->stats.tx_errors++; session->stats.tx_errors++; diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 982a9010c7a9..bb6896ae3151 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -2338,7 +2338,7 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, { struct skb_shared_info *info = skb_shinfo(skb); unsigned int cur_frag, entry; - struct TxDesc *txd; + struct TxDesc * uninitialized_var(txd); entry = tp->cur_tx; for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { diff --git a/drivers/net/saa9730.c b/drivers/net/saa9730.c index 451486b32f23..7dae4d404978 100644 --- a/drivers/net/saa9730.c +++ b/drivers/net/saa9730.c @@ -940,15 +940,14 @@ static void lan_saa9730_set_multicast(struct net_device *dev) CAM_CONTROL_GROUP_ACC | CAM_CONTROL_BROAD_ACC, &lp->lan_saa9730_regs->CamCtl); } else { - if (dev->flags & IFF_ALLMULTI) { + if (dev->flags & IFF_ALLMULTI || dev->mc_count) { /* accept all multicast packets */ - writel(CAM_CONTROL_COMP_EN | CAM_CONTROL_GROUP_ACC | - CAM_CONTROL_BROAD_ACC, - &lp->lan_saa9730_regs->CamCtl); - } else { /* * Will handle the multicast stuff later. -carstenl */ + writel(CAM_CONTROL_COMP_EN | CAM_CONTROL_GROUP_ACC | + CAM_CONTROL_BROAD_ACC, + &lp->lan_saa9730_regs->CamCtl); } } diff --git a/drivers/net/shaper.c b/drivers/net/shaper.c index e886e8d7cfdf..4c3d98ff4cd4 100644 --- a/drivers/net/shaper.c +++ b/drivers/net/shaper.c @@ -600,10 +600,9 @@ static int __init shaper_init(void) return -ENODEV; alloc_size = sizeof(*dev) * shapers; - devs = kmalloc(alloc_size, GFP_KERNEL); + devs = kzalloc(alloc_size, GFP_KERNEL); if (!devs) return -ENOMEM; - memset(devs, 0, alloc_size); for (i = 0; i < shapers; i++) { diff --git a/drivers/net/sunvnet.c b/drivers/net/sunvnet.c index 8a667c13faef..b801e3b3a11a 100644 --- a/drivers/net/sunvnet.c +++ b/drivers/net/sunvnet.c @@ -12,6 +12,7 @@ #include <linux/netdevice.h> #include <linux/ethtool.h> #include <linux/etherdevice.h> +#include <linux/mutex.h> #include <asm/vio.h> #include <asm/ldc.h> @@ -497,6 +498,8 @@ static void vnet_event(void *arg, int event) vio_link_state_change(vio, event); spin_unlock_irqrestore(&vio->lock, flags); + if (event == LDC_EVENT_RESET) + vio_port_up(vio); return; } @@ -875,6 +878,115 @@ err_out: return err; } +static LIST_HEAD(vnet_list); +static DEFINE_MUTEX(vnet_list_mutex); + +static struct vnet * __devinit vnet_new(const u64 *local_mac) +{ + struct net_device *dev; + struct vnet *vp; + int err, i; + + dev = alloc_etherdev(sizeof(*vp)); + if (!dev) { + printk(KERN_ERR PFX "Etherdev alloc failed, aborting.\n"); + return ERR_PTR(-ENOMEM); + } + + for (i = 0; i < ETH_ALEN; i++) + dev->dev_addr[i] = (*local_mac >> (5 - i) * 8) & 0xff; + + memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); + + vp = netdev_priv(dev); + + spin_lock_init(&vp->lock); + vp->dev = dev; + + INIT_LIST_HEAD(&vp->port_list); + for (i = 0; i < VNET_PORT_HASH_SIZE; i++) + INIT_HLIST_HEAD(&vp->port_hash[i]); + INIT_LIST_HEAD(&vp->list); + vp->local_mac = *local_mac; + + dev->open = vnet_open; + dev->stop = vnet_close; + dev->set_multicast_list = vnet_set_rx_mode; + dev->set_mac_address = vnet_set_mac_addr; + dev->tx_timeout = vnet_tx_timeout; + dev->ethtool_ops = &vnet_ethtool_ops; + dev->watchdog_timeo = VNET_TX_TIMEOUT; + dev->change_mtu = vnet_change_mtu; + dev->hard_start_xmit = vnet_start_xmit; + + err = register_netdev(dev); + if (err) { + printk(KERN_ERR PFX "Cannot register net device, " + "aborting.\n"); + goto err_out_free_dev; + } + + printk(KERN_INFO "%s: Sun LDOM vnet ", dev->name); + + for (i = 0; i < 6; i++) + printk("%2.2x%c", dev->dev_addr[i], i == 5 ? '\n' : ':'); + + list_add(&vp->list, &vnet_list); + + return vp; + +err_out_free_dev: + free_netdev(dev); + + return ERR_PTR(err); +} + +static struct vnet * __devinit vnet_find_or_create(const u64 *local_mac) +{ + struct vnet *iter, *vp; + + mutex_lock(&vnet_list_mutex); + vp = NULL; + list_for_each_entry(iter, &vnet_list, list) { + if (iter->local_mac == *local_mac) { + vp = iter; + break; + } + } + if (!vp) + vp = vnet_new(local_mac); + mutex_unlock(&vnet_list_mutex); + + return vp; +} + +static const char *local_mac_prop = "local-mac-address"; + +static struct vnet * __devinit vnet_find_parent(struct mdesc_handle *hp, + u64 port_node) +{ + const u64 *local_mac = NULL; + u64 a; + + mdesc_for_each_arc(a, hp, port_node, MDESC_ARC_TYPE_BACK) { + u64 target = mdesc_arc_target(hp, a); + const char *name; + + name = mdesc_get_property(hp, target, "name", NULL); + if (!name || strcmp(name, "network")) + continue; + + local_mac = mdesc_get_property(hp, target, + local_mac_prop, NULL); + if (local_mac) + break; + } + if (!local_mac) + return ERR_PTR(-ENODEV); + + return vnet_find_or_create(local_mac); +} + static struct ldc_channel_config vnet_ldc_cfg = { .event = vnet_event, .mtu = 64, @@ -887,6 +999,14 @@ static struct vio_driver_ops vnet_vio_ops = { .handshake_complete = vnet_handshake_complete, }; +static void print_version(void) +{ + static int version_printed; + + if (version_printed++ == 0) + printk(KERN_INFO "%s", version); +} + const char *remote_macaddr_prop = "remote-mac-address"; static int __devinit vnet_port_probe(struct vio_dev *vdev, @@ -899,14 +1019,17 @@ static int __devinit vnet_port_probe(struct vio_dev *vdev, const u64 *rmac; int len, i, err, switch_port; - vp = dev_get_drvdata(vdev->dev.parent); - if (!vp) { - printk(KERN_ERR PFX "Cannot find port parent vnet.\n"); - return -ENODEV; - } + print_version(); hp = mdesc_grab(); + vp = vnet_find_parent(hp, vdev->mp); + if (IS_ERR(vp)) { + printk(KERN_ERR PFX "Cannot find port parent vnet.\n"); + err = PTR_ERR(vp); + goto err_out_put_mdesc; + } + rmac = mdesc_get_property(hp, vdev->mp, remote_macaddr_prop, &len); err = -ENODEV; if (!rmac) { @@ -1025,139 +1148,14 @@ static struct vio_driver vnet_port_driver = { } }; -const char *local_mac_prop = "local-mac-address"; - -static int __devinit vnet_probe(struct vio_dev *vdev, - const struct vio_device_id *id) -{ - static int vnet_version_printed; - struct mdesc_handle *hp; - struct net_device *dev; - struct vnet *vp; - const u64 *mac; - int err, i, len; - - if (vnet_version_printed++ == 0) - printk(KERN_INFO "%s", version); - - hp = mdesc_grab(); - - mac = mdesc_get_property(hp, vdev->mp, local_mac_prop, &len); - if (!mac) { - printk(KERN_ERR PFX "vnet lacks %s property.\n", - local_mac_prop); - err = -ENODEV; - goto err_out; - } - - dev = alloc_etherdev(sizeof(*vp)); - if (!dev) { - printk(KERN_ERR PFX "Etherdev alloc failed, aborting.\n"); - err = -ENOMEM; - goto err_out; - } - - for (i = 0; i < ETH_ALEN; i++) - dev->dev_addr[i] = (*mac >> (5 - i) * 8) & 0xff; - - memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); - - SET_NETDEV_DEV(dev, &vdev->dev); - - vp = netdev_priv(dev); - - spin_lock_init(&vp->lock); - vp->dev = dev; - vp->vdev = vdev; - - INIT_LIST_HEAD(&vp->port_list); - for (i = 0; i < VNET_PORT_HASH_SIZE; i++) - INIT_HLIST_HEAD(&vp->port_hash[i]); - - dev->open = vnet_open; - dev->stop = vnet_close; - dev->set_multicast_list = vnet_set_rx_mode; - dev->set_mac_address = vnet_set_mac_addr; - dev->tx_timeout = vnet_tx_timeout; - dev->ethtool_ops = &vnet_ethtool_ops; - dev->watchdog_timeo = VNET_TX_TIMEOUT; - dev->change_mtu = vnet_change_mtu; - dev->hard_start_xmit = vnet_start_xmit; - - err = register_netdev(dev); - if (err) { - printk(KERN_ERR PFX "Cannot register net device, " - "aborting.\n"); - goto err_out_free_dev; - } - - printk(KERN_INFO "%s: Sun LDOM vnet ", dev->name); - - for (i = 0; i < 6; i++) - printk("%2.2x%c", dev->dev_addr[i], i == 5 ? '\n' : ':'); - - dev_set_drvdata(&vdev->dev, vp); - - mdesc_release(hp); - - return 0; - -err_out_free_dev: - free_netdev(dev); - -err_out: - mdesc_release(hp); - return err; -} - -static int vnet_remove(struct vio_dev *vdev) -{ - - struct vnet *vp = dev_get_drvdata(&vdev->dev); - - if (vp) { - /* XXX unregister port, or at least check XXX */ - unregister_netdevice(vp->dev); - dev_set_drvdata(&vdev->dev, NULL); - } - return 0; -} - -static struct vio_device_id vnet_match[] = { - { - .type = "network", - }, - {}, -}; -MODULE_DEVICE_TABLE(vio, vnet_match); - -static struct vio_driver vnet_driver = { - .id_table = vnet_match, - .probe = vnet_probe, - .remove = vnet_remove, - .driver = { - .name = "vnet", - .owner = THIS_MODULE, - } -}; - static int __init vnet_init(void) { - int err = vio_register_driver(&vnet_driver); - - if (!err) { - err = vio_register_driver(&vnet_port_driver); - if (err) - vio_unregister_driver(&vnet_driver); - } - - return err; + return vio_register_driver(&vnet_port_driver); } static void __exit vnet_exit(void) { vio_unregister_driver(&vnet_port_driver); - vio_unregister_driver(&vnet_driver); } module_init(vnet_init); diff --git a/drivers/net/sunvnet.h b/drivers/net/sunvnet.h index 1c887302d46d..7d3a0cac727b 100644 --- a/drivers/net/sunvnet.h +++ b/drivers/net/sunvnet.h @@ -60,11 +60,13 @@ struct vnet { struct net_device *dev; u32 msg_enable; - struct vio_dev *vdev; struct list_head port_list; struct hlist_head port_hash[VNET_PORT_HASH_SIZE]; + + struct list_head list; + u64 local_mac; }; #endif /* _SUNVNET_H */ diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c index 75655add3f34..7f94ca930988 100644 --- a/drivers/net/tc35815.c +++ b/drivers/net/tc35815.c @@ -626,7 +626,7 @@ static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev) return -ENODEV; } #else -static int __devinit tc35815_read_plat_dev_addr(struct device *dev) +static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev) { return -ENODEV; } diff --git a/drivers/net/tokenring/smctr.c b/drivers/net/tokenring/smctr.c index 58d7e5d452fa..f83bb5cb0d3d 100644 --- a/drivers/net/tokenring/smctr.c +++ b/drivers/net/tokenring/smctr.c @@ -3692,7 +3692,6 @@ static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size, __u16 rcode, correlator; int err = 0; __u8 xframe = 1; - __u16 tx_fstatus; rmf->vl = SWAP_BYTES(rmf->vl); if(rx_status & FCB_RX_STATUS_DA_MATCHED) @@ -3783,7 +3782,9 @@ static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size, } break; - case TX_FORWARD: + case TX_FORWARD: { + __u16 uninitialized_var(tx_fstatus); + if((rcode = smctr_rcv_tx_forward(dev, rmf)) != POSITIVE_ACK) { @@ -3811,6 +3812,7 @@ static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size, } } break; + } /* Received MAC Frames Processed by CRS/REM/RPS. */ case RSP: diff --git a/drivers/net/wan/c101.c b/drivers/net/wan/c101.c index 6b63b350cd52..8ead774d14c8 100644 --- a/drivers/net/wan/c101.c +++ b/drivers/net/wan/c101.c @@ -315,12 +315,11 @@ static int __init c101_run(unsigned long irq, unsigned long winbase) return -ENODEV; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "c101: unable to allocate memory\n"); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); card->dev = alloc_hdlcdev(card); if (!card->dev) { diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index 9ef49ce148b2..26058b4f8f36 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -572,13 +572,11 @@ static int cosa_probe(int base, int irq, int dma) sprintf(cosa->name, "cosa%d", cosa->num); /* Initialize the per-channel data */ - cosa->chan = kmalloc(sizeof(struct channel_data)*cosa->nchannels, - GFP_KERNEL); + cosa->chan = kcalloc(cosa->nchannels, sizeof(struct channel_data), GFP_KERNEL); if (!cosa->chan) { err = -ENOMEM; goto err_out3; } - memset(cosa->chan, 0, sizeof(struct channel_data)*cosa->nchannels); for (i=0; i<cosa->nchannels; i++) { cosa->chan[i].cosa = cosa; cosa->chan[i].num = i; diff --git a/drivers/net/wan/cycx_main.c b/drivers/net/wan/cycx_main.c index 6e5f1c898517..a0e8611ad8e8 100644 --- a/drivers/net/wan/cycx_main.c +++ b/drivers/net/wan/cycx_main.c @@ -113,12 +113,10 @@ static int __init cycx_init(void) /* Verify number of cards and allocate adapter data space */ cycx_ncards = min_t(int, cycx_ncards, CYCX_MAX_CARDS); cycx_ncards = max_t(int, cycx_ncards, 1); - cycx_card_array = kmalloc(sizeof(struct cycx_device) * cycx_ncards, - GFP_KERNEL); + cycx_card_array = kcalloc(cycx_ncards, sizeof(struct cycx_device), GFP_KERNEL); if (!cycx_card_array) goto out; - memset(cycx_card_array, 0, sizeof(struct cycx_device) * cycx_ncards); /* Register adapters with WAN router */ for (cnt = 0; cnt < cycx_ncards; ++cnt) { diff --git a/drivers/net/wan/cycx_x25.c b/drivers/net/wan/cycx_x25.c index 016b3ff3ea5e..a8af28b273d3 100644 --- a/drivers/net/wan/cycx_x25.c +++ b/drivers/net/wan/cycx_x25.c @@ -376,11 +376,10 @@ static int cycx_wan_new_if(struct wan_device *wandev, struct net_device *dev, } /* allocate and initialize private data */ - chan = kmalloc(sizeof(struct cycx_x25_channel), GFP_KERNEL); + chan = kzalloc(sizeof(struct cycx_x25_channel), GFP_KERNEL); if (!chan) return -ENOMEM; - memset(chan, 0, sizeof(*chan)); strcpy(chan->name, conf->name); chan->card = card; chan->link = conf->port; diff --git a/drivers/net/wan/dscc4.c b/drivers/net/wan/dscc4.c index dca024471455..50d2f9108dca 100644 --- a/drivers/net/wan/dscc4.c +++ b/drivers/net/wan/dscc4.c @@ -890,12 +890,11 @@ static int dscc4_found1(struct pci_dev *pdev, void __iomem *ioaddr) struct dscc4_dev_priv *root; int i, ret = -ENOMEM; - root = kmalloc(dev_per_card*sizeof(*root), GFP_KERNEL); + root = kcalloc(dev_per_card, sizeof(*root), GFP_KERNEL); if (!root) { printk(KERN_ERR "%s: can't allocate data\n", DRV_NAME); goto err_out; } - memset(root, 0, dev_per_card*sizeof(*root)); for (i = 0; i < dev_per_card; i++) { root[i].dev = alloc_hdlcdev(root + i); @@ -903,12 +902,11 @@ static int dscc4_found1(struct pci_dev *pdev, void __iomem *ioaddr) goto err_free_dev; } - ppriv = kmalloc(sizeof(*ppriv), GFP_KERNEL); + ppriv = kzalloc(sizeof(*ppriv), GFP_KERNEL); if (!ppriv) { printk(KERN_ERR "%s: can't allocate private data\n", DRV_NAME); goto err_free_dev; } - memset(ppriv, 0, sizeof(struct dscc4_pci_priv)); ppriv->root = root; spin_lock_init(&ppriv->lock); diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c index 58a53b6d9b42..12dae8e24844 100644 --- a/drivers/net/wan/farsync.c +++ b/drivers/net/wan/farsync.c @@ -2476,13 +2476,12 @@ fst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent) } /* Allocate driver private data */ - card = kmalloc(sizeof (struct fst_card_info), GFP_KERNEL); + card = kzalloc(sizeof (struct fst_card_info), GFP_KERNEL); if (card == NULL) { printk_err("FarSync card found but insufficient memory for" " driver storage\n"); return -ENOMEM; } - memset(card, 0, sizeof (struct fst_card_info)); /* Try to enable the device */ if ((err = pci_enable_device(pdev)) != 0) { diff --git a/drivers/net/wan/hostess_sv11.c b/drivers/net/wan/hostess_sv11.c index 9ba3e4ee6ec7..bf5f8d9b5c83 100644 --- a/drivers/net/wan/hostess_sv11.c +++ b/drivers/net/wan/hostess_sv11.c @@ -231,11 +231,10 @@ static struct sv11_device *sv11_init(int iobase, int irq) return NULL; } - sv = kmalloc(sizeof(struct sv11_device), GFP_KERNEL); + sv = kzalloc(sizeof(struct sv11_device), GFP_KERNEL); if(!sv) goto fail3; - memset(sv, 0, sizeof(*sv)); sv->if_ptr=&sv->netdev; sv->netdev.dev = alloc_netdev(0, "hdlc%d", sv11_setup); diff --git a/drivers/net/wan/n2.c b/drivers/net/wan/n2.c index 5c322dfb79f6..cbdf0b748bde 100644 --- a/drivers/net/wan/n2.c +++ b/drivers/net/wan/n2.c @@ -351,12 +351,11 @@ static int __init n2_run(unsigned long io, unsigned long irq, return -ENODEV; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "n2: unable to allocate memory\n"); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); card->ports[0].dev = alloc_hdlcdev(&card->ports[0]); card->ports[1].dev = alloc_hdlcdev(&card->ports[1]); diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c index ec1c556a47ca..99fee2f1d019 100644 --- a/drivers/net/wan/pc300_drv.c +++ b/drivers/net/wan/pc300_drv.c @@ -2833,6 +2833,8 @@ static int clock_rate_calc(uclong rate, uclong clock, int *br_io) int br, tc; int br_pwr, error; + *br_io = 0; + if (rate == 0) return (0); @@ -3454,7 +3456,7 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if ((err = pci_enable_device(pdev)) < 0) return err; - card = kmalloc(sizeof(pc300_t), GFP_KERNEL); + card = kzalloc(sizeof(pc300_t), GFP_KERNEL); if (card == NULL) { printk("PC300 found at RAM 0x%016llx, " "but could not allocate card structure.\n", @@ -3462,7 +3464,6 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) err = -ENOMEM; goto err_disable_dev; } - memset(card, 0, sizeof(pc300_t)); err = -ENODEV; diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c index dfbd3b00f03b..6353cb5c658d 100644 --- a/drivers/net/wan/pc300too.c +++ b/drivers/net/wan/pc300too.c @@ -334,14 +334,13 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev, return i; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "pc300: unable to allocate memory\n"); pci_release_regions(pdev); pci_disable_device(pdev); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); pci_set_drvdata(pdev, card); if (pdev->device == PCI_DEVICE_ID_PC300_TE_1 || diff --git a/drivers/net/wan/pci200syn.c b/drivers/net/wan/pci200syn.c index 7f720de2e9f0..092e51d89036 100644 --- a/drivers/net/wan/pci200syn.c +++ b/drivers/net/wan/pci200syn.c @@ -312,14 +312,13 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev, return i; } - card = kmalloc(sizeof(card_t), GFP_KERNEL); + card = kzalloc(sizeof(card_t), GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "pci200syn: unable to allocate memory\n"); pci_release_regions(pdev); pci_disable_device(pdev); return -ENOBUFS; } - memset(card, 0, sizeof(card_t)); pci_set_drvdata(pdev, card); card->ports[0].dev = alloc_hdlcdev(&card->ports[0]); card->ports[1].dev = alloc_hdlcdev(&card->ports[1]); diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c index 35eded7ffb2d..1cc18e787a65 100644 --- a/drivers/net/wan/sbni.c +++ b/drivers/net/wan/sbni.c @@ -595,8 +595,8 @@ recv_frame( struct net_device *dev ) u32 crc = CRC32_INITIAL; - unsigned framelen, frameno, ack; - unsigned is_first, frame_ok; + unsigned framelen = 0, frameno, ack; + unsigned is_first, frame_ok = 0; if( check_fhdr( ioaddr, &framelen, &frameno, &ack, &is_first, &crc ) ) { frame_ok = framelen > 4 @@ -604,8 +604,7 @@ recv_frame( struct net_device *dev ) : skip_tail( ioaddr, framelen, crc ); if( frame_ok ) interpret_ack( dev, ack ); - } else - frame_ok = 0; + } outb( inb( ioaddr + CSR0 ) ^ CT_ZER, ioaddr + CSR0 ); if( frame_ok ) { diff --git a/drivers/net/wan/sdla.c b/drivers/net/wan/sdla.c index 6a485f0556f4..792e588d7d61 100644 --- a/drivers/net/wan/sdla.c +++ b/drivers/net/wan/sdla.c @@ -1196,10 +1196,9 @@ static int sdla_xfer(struct net_device *dev, struct sdla_mem __user *info, int r if (read) { - temp = kmalloc(mem.len, GFP_KERNEL); + temp = kzalloc(mem.len, GFP_KERNEL); if (!temp) return(-ENOMEM); - memset(temp, 0, mem.len); sdla_read(dev, mem.addr, temp, mem.len); if(copy_to_user(mem.data, temp, mem.len)) { diff --git a/drivers/net/wan/sealevel.c b/drivers/net/wan/sealevel.c index 131358108c5a..11276bf3149f 100644 --- a/drivers/net/wan/sealevel.c +++ b/drivers/net/wan/sealevel.c @@ -270,11 +270,10 @@ static __init struct slvl_board *slvl_init(int iobase, int irq, return NULL; } - b = kmalloc(sizeof(struct slvl_board), GFP_KERNEL); + b = kzalloc(sizeof(struct slvl_board), GFP_KERNEL); if(!b) goto fail3; - memset(b, 0, sizeof(*b)); if (!(b->dev[0]= slvl_alloc(iobase, irq))) goto fail2; diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c index c73601574334..3c78f9856380 100644 --- a/drivers/net/wan/wanxl.c +++ b/drivers/net/wan/wanxl.c @@ -599,7 +599,7 @@ static int __devinit wanxl_pci_init_one(struct pci_dev *pdev, } alloc_size = sizeof(card_t) + ports * sizeof(port_t); - card = kmalloc(alloc_size, GFP_KERNEL); + card = kzalloc(alloc_size, GFP_KERNEL); if (card == NULL) { printk(KERN_ERR "wanXL %s: unable to allocate memory\n", pci_name(pdev)); @@ -607,7 +607,6 @@ static int __devinit wanxl_pci_init_one(struct pci_dev *pdev, pci_disable_device(pdev); return -ENOBUFS; } - memset(card, 0, alloc_size); pci_set_drvdata(pdev, card); card->pdev = pdev; diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c index 1c9edd97accd..c48b1cc63fd5 100644 --- a/drivers/net/wan/x25_asy.c +++ b/drivers/net/wan/x25_asy.c @@ -786,14 +786,12 @@ static int __init init_x25_asy(void) printk(KERN_INFO "X.25 async: version 0.00 ALPHA " "(dynamic channels, max=%d).\n", x25_asy_maxdev ); - x25_asy_devs = kmalloc(sizeof(struct net_device *)*x25_asy_maxdev, - GFP_KERNEL); + x25_asy_devs = kcalloc(x25_asy_maxdev, sizeof(struct net_device*), GFP_KERNEL); if (!x25_asy_devs) { printk(KERN_WARNING "X25 async: Can't allocate x25_asy_ctrls[] " "array! Uaargh! (-> No X.25 available)\n"); return -ENOMEM; } - memset(x25_asy_devs, 0, sizeof(struct net_device *)*x25_asy_maxdev); return tty_register_ldisc(N_X25, &x25_ldisc); } diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 1c54908fdc4c..ee1cc14db389 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -3086,7 +3086,8 @@ static int airo_thread(void *data) { struct net_device *dev = data; struct airo_info *ai = dev->priv; int locked; - + + set_freezable(); while(1) { /* make swsusp happy with our thread */ try_to_freeze(); diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c index 072ede71e575..8990585bd228 100644 --- a/drivers/net/wireless/ipw2100.c +++ b/drivers/net/wireless/ipw2100.c @@ -7868,10 +7868,10 @@ static int ipw2100_wx_set_powermode(struct net_device *dev, goto done; } - if ((mode < 1) || (mode > POWER_MODES)) + if ((mode < 0) || (mode > POWER_MODES)) mode = IPW_POWER_AUTO; - if (priv->power_mode != mode) + if (IPW_POWER_LEVEL(priv->power_mode) != mode) err = ipw2100_set_power_mode(priv, mode); done: mutex_unlock(&priv->action_mutex); @@ -7902,7 +7902,7 @@ static int ipw2100_wx_get_powermode(struct net_device *dev, break; case IPW_POWER_AUTO: snprintf(extra, MAX_POWER_STRING, - "Power save level: %d (Auto)", 0); + "Power save level: %d (Auto)", level); break; default: timeout = timeout_duration[level - 1] / 1000; diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index aa32a97380ec..61497c467467 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -70,7 +70,7 @@ #define VQ #endif -#define IPW2200_VERSION "1.2.0" VK VD VM VP VR VQ +#define IPW2200_VERSION "1.2.2" VK VD VM VP VR VQ #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver" #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" #define DRV_VERSION IPW2200_VERSION @@ -2506,7 +2506,7 @@ static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode) break; } - param = cpu_to_le32(mode); + param = cpu_to_le32(param); return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param), ¶m); } @@ -9568,6 +9568,7 @@ static int ipw_wx_set_power(struct net_device *dev, priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY; else priv->power_mode = IPW_POWER_ENABLED | priv->power_mode; + err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode)); if (err) { IPW_DEBUG_WX("failed setting power mode.\n"); @@ -9604,22 +9605,19 @@ static int ipw_wx_set_powermode(struct net_device *dev, struct ipw_priv *priv = ieee80211_priv(dev); int mode = *(int *)extra; int err; + mutex_lock(&priv->mutex); - if ((mode < 1) || (mode > IPW_POWER_LIMIT)) { + if ((mode < 1) || (mode > IPW_POWER_LIMIT)) mode = IPW_POWER_AC; - priv->power_mode = mode; - } else { - priv->power_mode = IPW_POWER_ENABLED | mode; - } - if (priv->power_mode != mode) { + if (IPW_POWER_LEVEL(priv->power_mode) != mode) { err = ipw_send_power_mode(priv, mode); - if (err) { IPW_DEBUG_WX("failed setting power mode.\n"); mutex_unlock(&priv->mutex); return err; } + priv->power_mode = IPW_POWER_ENABLED | mode; } mutex_unlock(&priv->mutex); return 0; @@ -10555,7 +10553,7 @@ static irqreturn_t ipw_isr(int irq, void *data) spin_lock(&priv->irq_lock); if (!(priv->status & STATUS_INT_ENABLED)) { - /* Shared IRQ */ + /* IRQ is disabled */ goto none; } diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 4a59306a3f05..9f366242c392 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -613,6 +613,7 @@ static int wlan_service_main_thread(void *data) init_waitqueue_entry(&wait, current); + set_freezable(); for (;;) { lbs_deb_thread( "main-thread 111: intcounter=%d " "currenttxskb=%p dnld_sent=%d\n", diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index 28d41a29d7b1..a9c339ef116a 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -72,6 +72,8 @@ static struct usb_device_id usb_ids[] = { { USB_DEVICE(0x0586, 0x3413), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x0053, 0x5301), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x0411, 0x00da), .driver_info = DEVICE_ZD1211B }, + { USB_DEVICE(0x2019, 0x5303), .driver_info = DEVICE_ZD1211B }, + { USB_DEVICE(0x129b, 0x1667), .driver_info = DEVICE_ZD1211B }, /* "Driverless" devices that need ejecting */ { USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER }, { USB_DEVICE(0x0ace, 0x20ff), .driver_info = DEVICE_INSTALLER }, diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c new file mode 100644 index 000000000000..489f69c5d6ca --- /dev/null +++ b/drivers/net/xen-netfront.c @@ -0,0 +1,1863 @@ +/* + * Virtual network driver for conversing with remote driver backends. + * + * Copyright (c) 2002-2005, K A Fraser + * Copyright (c) 2005, XenSource Ltd + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/ethtool.h> +#include <linux/if_ether.h> +#include <linux/tcp.h> +#include <linux/udp.h> +#include <linux/moduleparam.h> +#include <linux/mm.h> +#include <net/ip.h> + +#include <xen/xenbus.h> +#include <xen/events.h> +#include <xen/page.h> +#include <xen/grant_table.h> + +#include <xen/interface/io/netif.h> +#include <xen/interface/memory.h> +#include <xen/interface/grant_table.h> + +static struct ethtool_ops xennet_ethtool_ops; + +struct netfront_cb { + struct page *page; + unsigned offset; +}; + +#define NETFRONT_SKB_CB(skb) ((struct netfront_cb *)((skb)->cb)) + +#define RX_COPY_THRESHOLD 256 + +#define GRANT_INVALID_REF 0 + +#define NET_TX_RING_SIZE __RING_SIZE((struct xen_netif_tx_sring *)0, PAGE_SIZE) +#define NET_RX_RING_SIZE __RING_SIZE((struct xen_netif_rx_sring *)0, PAGE_SIZE) +#define TX_MAX_TARGET min_t(int, NET_RX_RING_SIZE, 256) + +struct netfront_info { + struct list_head list; + struct net_device *netdev; + + struct net_device_stats stats; + + struct xen_netif_tx_front_ring tx; + struct xen_netif_rx_front_ring rx; + + spinlock_t tx_lock; + spinlock_t rx_lock; + + unsigned int evtchn; + + /* Receive-ring batched refills. */ +#define RX_MIN_TARGET 8 +#define RX_DFL_MIN_TARGET 64 +#define RX_MAX_TARGET min_t(int, NET_RX_RING_SIZE, 256) + unsigned rx_min_target, rx_max_target, rx_target; + struct sk_buff_head rx_batch; + + struct timer_list rx_refill_timer; + + /* + * {tx,rx}_skbs store outstanding skbuffs. Free tx_skb entries + * are linked from tx_skb_freelist through skb_entry.link. + * + * NB. Freelist index entries are always going to be less than + * PAGE_OFFSET, whereas pointers to skbs will always be equal or + * greater than PAGE_OFFSET: we use this property to distinguish + * them. + */ + union skb_entry { + struct sk_buff *skb; + unsigned link; + } tx_skbs[NET_TX_RING_SIZE]; + grant_ref_t gref_tx_head; + grant_ref_t grant_tx_ref[NET_TX_RING_SIZE]; + unsigned tx_skb_freelist; + + struct sk_buff *rx_skbs[NET_RX_RING_SIZE]; + grant_ref_t gref_rx_head; + grant_ref_t grant_rx_ref[NET_RX_RING_SIZE]; + + struct xenbus_device *xbdev; + int tx_ring_ref; + int rx_ring_ref; + + unsigned long rx_pfn_array[NET_RX_RING_SIZE]; + struct multicall_entry rx_mcl[NET_RX_RING_SIZE+1]; + struct mmu_update rx_mmu[NET_RX_RING_SIZE]; +}; + +struct netfront_rx_info { + struct xen_netif_rx_response rx; + struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX - 1]; +}; + +/* + * Access macros for acquiring freeing slots in tx_skbs[]. + */ + +static void add_id_to_freelist(unsigned *head, union skb_entry *list, + unsigned short id) +{ + list[id].link = *head; + *head = id; +} + +static unsigned short get_id_from_freelist(unsigned *head, + union skb_entry *list) +{ + unsigned int id = *head; + *head = list[id].link; + return id; +} + +static int xennet_rxidx(RING_IDX idx) +{ + return idx & (NET_RX_RING_SIZE - 1); +} + +static struct sk_buff *xennet_get_rx_skb(struct netfront_info *np, + RING_IDX ri) +{ + int i = xennet_rxidx(ri); + struct sk_buff *skb = np->rx_skbs[i]; + np->rx_skbs[i] = NULL; + return skb; +} + +static grant_ref_t xennet_get_rx_ref(struct netfront_info *np, + RING_IDX ri) +{ + int i = xennet_rxidx(ri); + grant_ref_t ref = np->grant_rx_ref[i]; + np->grant_rx_ref[i] = GRANT_INVALID_REF; + return ref; +} + +#ifdef CONFIG_SYSFS +static int xennet_sysfs_addif(struct net_device *netdev); +static void xennet_sysfs_delif(struct net_device *netdev); +#else /* !CONFIG_SYSFS */ +#define xennet_sysfs_addif(dev) (0) +#define xennet_sysfs_delif(dev) do { } while (0) +#endif + +static int xennet_can_sg(struct net_device *dev) +{ + return dev->features & NETIF_F_SG; +} + + +static void rx_refill_timeout(unsigned long data) +{ + struct net_device *dev = (struct net_device *)data; + netif_rx_schedule(dev); +} + +static int netfront_tx_slot_available(struct netfront_info *np) +{ + return ((np->tx.req_prod_pvt - np->tx.rsp_cons) < + (TX_MAX_TARGET - MAX_SKB_FRAGS - 2)); +} + +static void xennet_maybe_wake_tx(struct net_device *dev) +{ + struct netfront_info *np = netdev_priv(dev); + + if (unlikely(netif_queue_stopped(dev)) && + netfront_tx_slot_available(np) && + likely(netif_running(dev))) + netif_wake_queue(dev); +} + +static void xennet_alloc_rx_buffers(struct net_device *dev) +{ + unsigned short id; + struct netfront_info *np = netdev_priv(dev); + struct sk_buff *skb; + struct page *page; + int i, batch_target, notify; + RING_IDX req_prod = np->rx.req_prod_pvt; + struct xen_memory_reservation reservation; + grant_ref_t ref; + unsigned long pfn; + void *vaddr; + int nr_flips; + struct xen_netif_rx_request *req; + + if (unlikely(!netif_carrier_ok(dev))) + return; + + /* + * Allocate skbuffs greedily, even though we batch updates to the + * receive ring. This creates a less bursty demand on the memory + * allocator, so should reduce the chance of failed allocation requests + * both for ourself and for other kernel subsystems. + */ + batch_target = np->rx_target - (req_prod - np->rx.rsp_cons); + for (i = skb_queue_len(&np->rx_batch); i < batch_target; i++) { + skb = __netdev_alloc_skb(dev, RX_COPY_THRESHOLD, + GFP_ATOMIC | __GFP_NOWARN); + if (unlikely(!skb)) + goto no_skb; + + page = alloc_page(GFP_ATOMIC | __GFP_NOWARN); + if (!page) { + kfree_skb(skb); +no_skb: + /* Any skbuffs queued for refill? Force them out. */ + if (i != 0) + goto refill; + /* Could not allocate any skbuffs. Try again later. */ + mod_timer(&np->rx_refill_timer, + jiffies + (HZ/10)); + break; + } + + skb_shinfo(skb)->frags[0].page = page; + skb_shinfo(skb)->nr_frags = 1; + __skb_queue_tail(&np->rx_batch, skb); + } + + /* Is the batch large enough to be worthwhile? */ + if (i < (np->rx_target/2)) { + if (req_prod > np->rx.sring->req_prod) + goto push; + return; + } + + /* Adjust our fill target if we risked running out of buffers. */ + if (((req_prod - np->rx.sring->rsp_prod) < (np->rx_target / 4)) && + ((np->rx_target *= 2) > np->rx_max_target)) + np->rx_target = np->rx_max_target; + + refill: + for (nr_flips = i = 0; ; i++) { + skb = __skb_dequeue(&np->rx_batch); + if (skb == NULL) + break; + + skb->dev = dev; + + id = xennet_rxidx(req_prod + i); + + BUG_ON(np->rx_skbs[id]); + np->rx_skbs[id] = skb; + + ref = gnttab_claim_grant_reference(&np->gref_rx_head); + BUG_ON((signed short)ref < 0); + np->grant_rx_ref[id] = ref; + + pfn = page_to_pfn(skb_shinfo(skb)->frags[0].page); + vaddr = page_address(skb_shinfo(skb)->frags[0].page); + + req = RING_GET_REQUEST(&np->rx, req_prod + i); + gnttab_grant_foreign_access_ref(ref, + np->xbdev->otherend_id, + pfn_to_mfn(pfn), + 0); + + req->id = id; + req->gref = ref; + } + + if (nr_flips != 0) { + reservation.extent_start = np->rx_pfn_array; + reservation.nr_extents = nr_flips; + reservation.extent_order = 0; + reservation.address_bits = 0; + reservation.domid = DOMID_SELF; + + if (!xen_feature(XENFEAT_auto_translated_physmap)) { + /* After all PTEs have been zapped, flush the TLB. */ + np->rx_mcl[i-1].args[MULTI_UVMFLAGS_INDEX] = + UVMF_TLB_FLUSH|UVMF_ALL; + + /* Give away a batch of pages. */ + np->rx_mcl[i].op = __HYPERVISOR_memory_op; + np->rx_mcl[i].args[0] = XENMEM_decrease_reservation; + np->rx_mcl[i].args[1] = (unsigned long)&reservation; + + /* Zap PTEs and give away pages in one big + * multicall. */ + (void)HYPERVISOR_multicall(np->rx_mcl, i+1); + + /* Check return status of HYPERVISOR_memory_op(). */ + if (unlikely(np->rx_mcl[i].result != i)) + panic("Unable to reduce memory reservation\n"); + } else { + if (HYPERVISOR_memory_op(XENMEM_decrease_reservation, + &reservation) != i) + panic("Unable to reduce memory reservation\n"); + } + } else { + wmb(); /* barrier so backend seens requests */ + } + + /* Above is a suitable barrier to ensure backend will see requests. */ + np->rx.req_prod_pvt = req_prod + i; + push: + RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&np->rx, notify); + if (notify) + notify_remote_via_irq(np->netdev->irq); +} + +static int xennet_open(struct net_device *dev) +{ + struct netfront_info *np = netdev_priv(dev); + + memset(&np->stats, 0, sizeof(np->stats)); + + spin_lock_bh(&np->rx_lock); + if (netif_carrier_ok(dev)) { + xennet_alloc_rx_buffers(dev); + np->rx.sring->rsp_event = np->rx.rsp_cons + 1; + if (RING_HAS_UNCONSUMED_RESPONSES(&np->rx)) + netif_rx_schedule(dev); + } + spin_unlock_bh(&np->rx_lock); + + xennet_maybe_wake_tx(dev); + + return 0; +} + +static void xennet_tx_buf_gc(struct net_device *dev) +{ + RING_IDX cons, prod; + unsigned short id; + struct netfront_info *np = netdev_priv(dev); + struct sk_buff *skb; + + BUG_ON(!netif_carrier_ok(dev)); + + do { + prod = np->tx.sring->rsp_prod; + rmb(); /* Ensure we see responses up to 'rp'. */ + + for (cons = np->tx.rsp_cons; cons != prod; cons++) { + struct xen_netif_tx_response *txrsp; + + txrsp = RING_GET_RESPONSE(&np->tx, cons); + if (txrsp->status == NETIF_RSP_NULL) + continue; + + id = txrsp->id; + skb = np->tx_skbs[id].skb; + if (unlikely(gnttab_query_foreign_access( + np->grant_tx_ref[id]) != 0)) { + printk(KERN_ALERT "xennet_tx_buf_gc: warning " + "-- grant still in use by backend " + "domain.\n"); + BUG(); + } + gnttab_end_foreign_access_ref( + np->grant_tx_ref[id], GNTMAP_readonly); + gnttab_release_grant_reference( + &np->gref_tx_head, np->grant_tx_ref[id]); + np->grant_tx_ref[id] = GRANT_INVALID_REF; + add_id_to_freelist(&np->tx_skb_freelist, np->tx_skbs, id); + dev_kfree_skb_irq(skb); + } + + np->tx.rsp_cons = prod; + + /* + * Set a new event, then check for race with update of tx_cons. + * Note that it is essential to schedule a callback, no matter + * how few buffers are pending. Even if there is space in the + * transmit ring, higher layers may be blocked because too much + * data is outstanding: in such cases notification from Xen is + * likely to be the only kick that we'll get. + */ + np->tx.sring->rsp_event = + prod + ((np->tx.sring->req_prod - prod) >> 1) + 1; + mb(); /* update shared area */ + } while ((cons == prod) && (prod != np->tx.sring->rsp_prod)); + + xennet_maybe_wake_tx(dev); +} + +static void xennet_make_frags(struct sk_buff *skb, struct net_device *dev, + struct xen_netif_tx_request *tx) +{ + struct netfront_info *np = netdev_priv(dev); + char *data = skb->data; + unsigned long mfn; + RING_IDX prod = np->tx.req_prod_pvt; + int frags = skb_shinfo(skb)->nr_frags; + unsigned int offset = offset_in_page(data); + unsigned int len = skb_headlen(skb); + unsigned int id; + grant_ref_t ref; + int i; + + /* While the header overlaps a page boundary (including being + larger than a page), split it it into page-sized chunks. */ + while (len > PAGE_SIZE - offset) { + tx->size = PAGE_SIZE - offset; + tx->flags |= NETTXF_more_data; + len -= tx->size; + data += tx->size; + offset = 0; + + id = get_id_from_freelist(&np->tx_skb_freelist, np->tx_skbs); + np->tx_skbs[id].skb = skb_get(skb); + tx = RING_GET_REQUEST(&np->tx, prod++); + tx->id = id; + ref = gnttab_claim_grant_reference(&np->gref_tx_head); + BUG_ON((signed short)ref < 0); + + mfn = virt_to_mfn(data); + gnttab_grant_foreign_access_ref(ref, np->xbdev->otherend_id, + mfn, GNTMAP_readonly); + + tx->gref = np->grant_tx_ref[id] = ref; + tx->offset = offset; + tx->size = len; + tx->flags = 0; + } + + /* Grant backend access to each skb fragment page. */ + for (i = 0; i < frags; i++) { + skb_frag_t *frag = skb_shinfo(skb)->frags + i; + + tx->flags |= NETTXF_more_data; + + id = get_id_from_freelist(&np->tx_skb_freelist, np->tx_skbs); + np->tx_skbs[id].skb = skb_get(skb); + tx = RING_GET_REQUEST(&np->tx, prod++); + tx->id = id; + ref = gnttab_claim_grant_reference(&np->gref_tx_head); + BUG_ON((signed short)ref < 0); + + mfn = pfn_to_mfn(page_to_pfn(frag->page)); + gnttab_grant_foreign_access_ref(ref, np->xbdev->otherend_id, + mfn, GNTMAP_readonly); + + tx->gref = np->grant_tx_ref[id] = ref; + tx->offset = frag->page_offset; + tx->size = frag->size; + tx->flags = 0; + } + + np->tx.req_prod_pvt = prod; +} + +static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + unsigned short id; + struct netfront_info *np = netdev_priv(dev); + struct xen_netif_tx_request *tx; + struct xen_netif_extra_info *extra; + char *data = skb->data; + RING_IDX i; + grant_ref_t ref; + unsigned long mfn; + int notify; + int frags = skb_shinfo(skb)->nr_frags; + unsigned int offset = offset_in_page(data); + unsigned int len = skb_headlen(skb); + + frags += (offset + len + PAGE_SIZE - 1) / PAGE_SIZE; + if (unlikely(frags > MAX_SKB_FRAGS + 1)) { + printk(KERN_ALERT "xennet: skb rides the rocket: %d frags\n", + frags); + dump_stack(); + goto drop; + } + + spin_lock_irq(&np->tx_lock); + + if (unlikely(!netif_carrier_ok(dev) || + (frags > 1 && !xennet_can_sg(dev)) || + netif_needs_gso(dev, skb))) { + spin_unlock_irq(&np->tx_lock); + goto drop; + } + + i = np->tx.req_prod_pvt; + + id = get_id_from_freelist(&np->tx_skb_freelist, np->tx_skbs); + np->tx_skbs[id].skb = skb; + + tx = RING_GET_REQUEST(&np->tx, i); + + tx->id = id; + ref = gnttab_claim_grant_reference(&np->gref_tx_head); + BUG_ON((signed short)ref < 0); + mfn = virt_to_mfn(data); + gnttab_grant_foreign_access_ref( + ref, np->xbdev->otherend_id, mfn, GNTMAP_readonly); + tx->gref = np->grant_tx_ref[id] = ref; + tx->offset = offset; + tx->size = len; + extra = NULL; + + tx->flags = 0; + if (skb->ip_summed == CHECKSUM_PARTIAL) + /* local packet? */ + tx->flags |= NETTXF_csum_blank | NETTXF_data_validated; + else if (skb->ip_summed == CHECKSUM_UNNECESSARY) + /* remote but checksummed. */ + tx->flags |= NETTXF_data_validated; + + if (skb_shinfo(skb)->gso_size) { + struct xen_netif_extra_info *gso; + + gso = (struct xen_netif_extra_info *) + RING_GET_REQUEST(&np->tx, ++i); + + if (extra) + extra->flags |= XEN_NETIF_EXTRA_FLAG_MORE; + else + tx->flags |= NETTXF_extra_info; + + gso->u.gso.size = skb_shinfo(skb)->gso_size; + gso->u.gso.type = XEN_NETIF_GSO_TYPE_TCPV4; + gso->u.gso.pad = 0; + gso->u.gso.features = 0; + + gso->type = XEN_NETIF_EXTRA_TYPE_GSO; + gso->flags = 0; + extra = gso; + } + + np->tx.req_prod_pvt = i + 1; + + xennet_make_frags(skb, dev, tx); + tx->size = skb->len; + + RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&np->tx, notify); + if (notify) + notify_remote_via_irq(np->netdev->irq); + + xennet_tx_buf_gc(dev); + + if (!netfront_tx_slot_available(np)) + netif_stop_queue(dev); + + spin_unlock_irq(&np->tx_lock); + + np->stats.tx_bytes += skb->len; + np->stats.tx_packets++; + + return 0; + + drop: + np->stats.tx_dropped++; + dev_kfree_skb(skb); + return 0; +} + +static int xennet_close(struct net_device *dev) +{ + struct netfront_info *np = netdev_priv(dev); + netif_stop_queue(np->netdev); + return 0; +} + +static struct net_device_stats *xennet_get_stats(struct net_device *dev) +{ + struct netfront_info *np = netdev_priv(dev); + return &np->stats; +} + +static void xennet_move_rx_slot(struct netfront_info *np, struct sk_buff *skb, + grant_ref_t ref) +{ + int new = xennet_rxidx(np->rx.req_prod_pvt); + + BUG_ON(np->rx_skbs[new]); + np->rx_skbs[new] = skb; + np->grant_rx_ref[new] = ref; + RING_GET_REQUEST(&np->rx, np->rx.req_prod_pvt)->id = new; + RING_GET_REQUEST(&np->rx, np->rx.req_prod_pvt)->gref = ref; + np->rx.req_prod_pvt++; +} + +static int xennet_get_extras(struct netfront_info *np, + struct xen_netif_extra_info *extras, + RING_IDX rp) + +{ + struct xen_netif_extra_info *extra; + struct device *dev = &np->netdev->dev; + RING_IDX cons = np->rx.rsp_cons; + int err = 0; + + do { + struct sk_buff *skb; + grant_ref_t ref; + + if (unlikely(cons + 1 == rp)) { + if (net_ratelimit()) + dev_warn(dev, "Missing extra info\n"); + err = -EBADR; + break; + } + + extra = (struct xen_netif_extra_info *) + RING_GET_RESPONSE(&np->rx, ++cons); + + if (unlikely(!extra->type || + extra->type >= XEN_NETIF_EXTRA_TYPE_MAX)) { + if (net_ratelimit()) + dev_warn(dev, "Invalid extra type: %d\n", + extra->type); + err = -EINVAL; + } else { + memcpy(&extras[extra->type - 1], extra, + sizeof(*extra)); + } + + skb = xennet_get_rx_skb(np, cons); + ref = xennet_get_rx_ref(np, cons); + xennet_move_rx_slot(np, skb, ref); + } while (extra->flags & XEN_NETIF_EXTRA_FLAG_MORE); + + np->rx.rsp_cons = cons; + return err; +} + +static int xennet_get_responses(struct netfront_info *np, + struct netfront_rx_info *rinfo, RING_IDX rp, + struct sk_buff_head *list) +{ + struct xen_netif_rx_response *rx = &rinfo->rx; + struct xen_netif_extra_info *extras = rinfo->extras; + struct device *dev = &np->netdev->dev; + RING_IDX cons = np->rx.rsp_cons; + struct sk_buff *skb = xennet_get_rx_skb(np, cons); + grant_ref_t ref = xennet_get_rx_ref(np, cons); + int max = MAX_SKB_FRAGS + (rx->status <= RX_COPY_THRESHOLD); + int frags = 1; + int err = 0; + unsigned long ret; + + if (rx->flags & NETRXF_extra_info) { + err = xennet_get_extras(np, extras, rp); + cons = np->rx.rsp_cons; + } + + for (;;) { + if (unlikely(rx->status < 0 || + rx->offset + rx->status > PAGE_SIZE)) { + if (net_ratelimit()) + dev_warn(dev, "rx->offset: %x, size: %u\n", + rx->offset, rx->status); + xennet_move_rx_slot(np, skb, ref); + err = -EINVAL; + goto next; + } + + /* + * This definitely indicates a bug, either in this driver or in + * the backend driver. In future this should flag the bad + * situation to the system controller to reboot the backed. + */ + if (ref == GRANT_INVALID_REF) { + if (net_ratelimit()) + dev_warn(dev, "Bad rx response id %d.\n", + rx->id); + err = -EINVAL; + goto next; + } + + ret = gnttab_end_foreign_access_ref(ref, 0); + BUG_ON(!ret); + + gnttab_release_grant_reference(&np->gref_rx_head, ref); + + __skb_queue_tail(list, skb); + +next: + if (!(rx->flags & NETRXF_more_data)) + break; + + if (cons + frags == rp) { + if (net_ratelimit()) + dev_warn(dev, "Need more frags\n"); + err = -ENOENT; + break; + } + + rx = RING_GET_RESPONSE(&np->rx, cons + frags); + skb = xennet_get_rx_skb(np, cons + frags); + ref = xennet_get_rx_ref(np, cons + frags); + frags++; + } + + if (unlikely(frags > max)) { + if (net_ratelimit()) + dev_warn(dev, "Too many frags\n"); + err = -E2BIG; + } + + if (unlikely(err)) + np->rx.rsp_cons = cons + frags; + + return err; +} + +static int xennet_set_skb_gso(struct sk_buff *skb, + struct xen_netif_extra_info *gso) +{ + if (!gso->u.gso.size) { + if (net_ratelimit()) + printk(KERN_WARNING "GSO size must not be zero.\n"); + return -EINVAL; + } + + /* Currently only TCPv4 S.O. is supported. */ + if (gso->u.gso.type != XEN_NETIF_GSO_TYPE_TCPV4) { + if (net_ratelimit()) + printk(KERN_WARNING "Bad GSO type %d.\n", gso->u.gso.type); + return -EINVAL; + } + + skb_shinfo(skb)->gso_size = gso->u.gso.size; + skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; + + /* Header must be checked, and gso_segs computed. */ + skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY; + skb_shinfo(skb)->gso_segs = 0; + + return 0; +} + +static RING_IDX xennet_fill_frags(struct netfront_info *np, + struct sk_buff *skb, + struct sk_buff_head *list) +{ + struct skb_shared_info *shinfo = skb_shinfo(skb); + int nr_frags = shinfo->nr_frags; + RING_IDX cons = np->rx.rsp_cons; + skb_frag_t *frag = shinfo->frags + nr_frags; + struct sk_buff *nskb; + + while ((nskb = __skb_dequeue(list))) { + struct xen_netif_rx_response *rx = + RING_GET_RESPONSE(&np->rx, ++cons); + + frag->page = skb_shinfo(nskb)->frags[0].page; + frag->page_offset = rx->offset; + frag->size = rx->status; + + skb->data_len += rx->status; + + skb_shinfo(nskb)->nr_frags = 0; + kfree_skb(nskb); + + frag++; + nr_frags++; + } + + shinfo->nr_frags = nr_frags; + return cons; +} + +static int skb_checksum_setup(struct sk_buff *skb) +{ + struct iphdr *iph; + unsigned char *th; + int err = -EPROTO; + + if (skb->protocol != htons(ETH_P_IP)) + goto out; + + iph = (void *)skb->data; + th = skb->data + 4 * iph->ihl; + if (th >= skb_tail_pointer(skb)) + goto out; + + skb->csum_start = th - skb->head; + switch (iph->protocol) { + case IPPROTO_TCP: + skb->csum_offset = offsetof(struct tcphdr, check); + break; + case IPPROTO_UDP: + skb->csum_offset = offsetof(struct udphdr, check); + break; + default: + if (net_ratelimit()) + printk(KERN_ERR "Attempting to checksum a non-" + "TCP/UDP packet, dropping a protocol" + " %d packet", iph->protocol); + goto out; + } + + if ((th + skb->csum_offset + 2) > skb_tail_pointer(skb)) + goto out; + + err = 0; + +out: + return err; +} + +static int handle_incoming_queue(struct net_device *dev, + struct sk_buff_head *rxq) +{ + struct netfront_info *np = netdev_priv(dev); + int packets_dropped = 0; + struct sk_buff *skb; + + while ((skb = __skb_dequeue(rxq)) != NULL) { + struct page *page = NETFRONT_SKB_CB(skb)->page; + void *vaddr = page_address(page); + unsigned offset = NETFRONT_SKB_CB(skb)->offset; + + memcpy(skb->data, vaddr + offset, + skb_headlen(skb)); + + if (page != skb_shinfo(skb)->frags[0].page) + __free_page(page); + + /* Ethernet work: Delayed to here as it peeks the header. */ + skb->protocol = eth_type_trans(skb, dev); + + if (skb->ip_summed == CHECKSUM_PARTIAL) { + if (skb_checksum_setup(skb)) { + kfree_skb(skb); + packets_dropped++; + np->stats.rx_errors++; + continue; + } + } + + np->stats.rx_packets++; + np->stats.rx_bytes += skb->len; + + /* Pass it up. */ + netif_receive_skb(skb); + dev->last_rx = jiffies; + } + + return packets_dropped; +} + +static int xennet_poll(struct net_device *dev, int *pbudget) +{ + struct netfront_info *np = netdev_priv(dev); + struct sk_buff *skb; + struct netfront_rx_info rinfo; + struct xen_netif_rx_response *rx = &rinfo.rx; + struct xen_netif_extra_info *extras = rinfo.extras; + RING_IDX i, rp; + int work_done, budget, more_to_do = 1; + struct sk_buff_head rxq; + struct sk_buff_head errq; + struct sk_buff_head tmpq; + unsigned long flags; + unsigned int len; + int err; + + spin_lock(&np->rx_lock); + + if (unlikely(!netif_carrier_ok(dev))) { + spin_unlock(&np->rx_lock); + return 0; + } + + skb_queue_head_init(&rxq); + skb_queue_head_init(&errq); + skb_queue_head_init(&tmpq); + + budget = *pbudget; + if (budget > dev->quota) + budget = dev->quota; + rp = np->rx.sring->rsp_prod; + rmb(); /* Ensure we see queued responses up to 'rp'. */ + + i = np->rx.rsp_cons; + work_done = 0; + while ((i != rp) && (work_done < budget)) { + memcpy(rx, RING_GET_RESPONSE(&np->rx, i), sizeof(*rx)); + memset(extras, 0, sizeof(rinfo.extras)); + + err = xennet_get_responses(np, &rinfo, rp, &tmpq); + + if (unlikely(err)) { +err: + while ((skb = __skb_dequeue(&tmpq))) + __skb_queue_tail(&errq, skb); + np->stats.rx_errors++; + i = np->rx.rsp_cons; + continue; + } + + skb = __skb_dequeue(&tmpq); + + if (extras[XEN_NETIF_EXTRA_TYPE_GSO - 1].type) { + struct xen_netif_extra_info *gso; + gso = &extras[XEN_NETIF_EXTRA_TYPE_GSO - 1]; + + if (unlikely(xennet_set_skb_gso(skb, gso))) { + __skb_queue_head(&tmpq, skb); + np->rx.rsp_cons += skb_queue_len(&tmpq); + goto err; + } + } + + NETFRONT_SKB_CB(skb)->page = skb_shinfo(skb)->frags[0].page; + NETFRONT_SKB_CB(skb)->offset = rx->offset; + + len = rx->status; + if (len > RX_COPY_THRESHOLD) + len = RX_COPY_THRESHOLD; + skb_put(skb, len); + + if (rx->status > len) { + skb_shinfo(skb)->frags[0].page_offset = + rx->offset + len; + skb_shinfo(skb)->frags[0].size = rx->status - len; + skb->data_len = rx->status - len; + } else { + skb_shinfo(skb)->frags[0].page = NULL; + skb_shinfo(skb)->nr_frags = 0; + } + + i = xennet_fill_frags(np, skb, &tmpq); + + /* + * Truesize approximates the size of true data plus + * any supervisor overheads. Adding hypervisor + * overheads has been shown to significantly reduce + * achievable bandwidth with the default receive + * buffer size. It is therefore not wise to account + * for it here. + * + * After alloc_skb(RX_COPY_THRESHOLD), truesize is set + * to RX_COPY_THRESHOLD + the supervisor + * overheads. Here, we add the size of the data pulled + * in xennet_fill_frags(). + * + * We also adjust for any unused space in the main + * data area by subtracting (RX_COPY_THRESHOLD - + * len). This is especially important with drivers + * which split incoming packets into header and data, + * using only 66 bytes of the main data area (see the + * e1000 driver for example.) On such systems, + * without this last adjustement, our achievable + * receive throughout using the standard receive + * buffer size was cut by 25%(!!!). + */ + skb->truesize += skb->data_len - (RX_COPY_THRESHOLD - len); + skb->len += skb->data_len; + + if (rx->flags & NETRXF_csum_blank) + skb->ip_summed = CHECKSUM_PARTIAL; + else if (rx->flags & NETRXF_data_validated) + skb->ip_summed = CHECKSUM_UNNECESSARY; + + __skb_queue_tail(&rxq, skb); + + np->rx.rsp_cons = ++i; + work_done++; + } + + while ((skb = __skb_dequeue(&errq))) + kfree_skb(skb); + + work_done -= handle_incoming_queue(dev, &rxq); + + /* If we get a callback with very few responses, reduce fill target. */ + /* NB. Note exponential increase, linear decrease. */ + if (((np->rx.req_prod_pvt - np->rx.sring->rsp_prod) > + ((3*np->rx_target) / 4)) && + (--np->rx_target < np->rx_min_target)) + np->rx_target = np->rx_min_target; + + xennet_alloc_rx_buffers(dev); + + *pbudget -= work_done; + dev->quota -= work_done; + + if (work_done < budget) { + local_irq_save(flags); + + RING_FINAL_CHECK_FOR_RESPONSES(&np->rx, more_to_do); + if (!more_to_do) + __netif_rx_complete(dev); + + local_irq_restore(flags); + } + + spin_unlock(&np->rx_lock); + + return more_to_do; +} + +static int xennet_change_mtu(struct net_device *dev, int mtu) +{ + int max = xennet_can_sg(dev) ? 65535 - ETH_HLEN : ETH_DATA_LEN; + + if (mtu > max) + return -EINVAL; + dev->mtu = mtu; + return 0; +} + +static void xennet_release_tx_bufs(struct netfront_info *np) +{ + struct sk_buff *skb; + int i; + + for (i = 0; i < NET_TX_RING_SIZE; i++) { + /* Skip over entries which are actually freelist references */ + if ((unsigned long)np->tx_skbs[i].skb < PAGE_OFFSET) + continue; + + skb = np->tx_skbs[i].skb; + gnttab_end_foreign_access_ref(np->grant_tx_ref[i], + GNTMAP_readonly); + gnttab_release_grant_reference(&np->gref_tx_head, + np->grant_tx_ref[i]); + np->grant_tx_ref[i] = GRANT_INVALID_REF; + add_id_to_freelist(&np->tx_skb_freelist, np->tx_skbs, i); + dev_kfree_skb_irq(skb); + } +} + +static void xennet_release_rx_bufs(struct netfront_info *np) +{ + struct mmu_update *mmu = np->rx_mmu; + struct multicall_entry *mcl = np->rx_mcl; + struct sk_buff_head free_list; + struct sk_buff *skb; + unsigned long mfn; + int xfer = 0, noxfer = 0, unused = 0; + int id, ref; + + dev_warn(&np->netdev->dev, "%s: fix me for copying receiver.\n", + __func__); + return; + + skb_queue_head_init(&free_list); + + spin_lock_bh(&np->rx_lock); + + for (id = 0; id < NET_RX_RING_SIZE; id++) { + ref = np->grant_rx_ref[id]; + if (ref == GRANT_INVALID_REF) { + unused++; + continue; + } + + skb = np->rx_skbs[id]; + mfn = gnttab_end_foreign_transfer_ref(ref); + gnttab_release_grant_reference(&np->gref_rx_head, ref); + np->grant_rx_ref[id] = GRANT_INVALID_REF; + + if (0 == mfn) { + skb_shinfo(skb)->nr_frags = 0; + dev_kfree_skb(skb); + noxfer++; + continue; + } + + if (!xen_feature(XENFEAT_auto_translated_physmap)) { + /* Remap the page. */ + struct page *page = skb_shinfo(skb)->frags[0].page; + unsigned long pfn = page_to_pfn(page); + void *vaddr = page_address(page); + + MULTI_update_va_mapping(mcl, (unsigned long)vaddr, + mfn_pte(mfn, PAGE_KERNEL), + 0); + mcl++; + mmu->ptr = ((u64)mfn << PAGE_SHIFT) + | MMU_MACHPHYS_UPDATE; + mmu->val = pfn; + mmu++; + + set_phys_to_machine(pfn, mfn); + } + __skb_queue_tail(&free_list, skb); + xfer++; + } + + dev_info(&np->netdev->dev, "%s: %d xfer, %d noxfer, %d unused\n", + __func__, xfer, noxfer, unused); + + if (xfer) { + if (!xen_feature(XENFEAT_auto_translated_physmap)) { + /* Do all the remapping work and M2P updates. */ + MULTI_mmu_update(mcl, np->rx_mmu, mmu - np->rx_mmu, + 0, DOMID_SELF); + mcl++; + HYPERVISOR_multicall(np->rx_mcl, mcl - np->rx_mcl); + } + } + + while ((skb = __skb_dequeue(&free_list)) != NULL) + dev_kfree_skb(skb); + + spin_unlock_bh(&np->rx_lock); +} + +static void xennet_uninit(struct net_device *dev) +{ + struct netfront_info *np = netdev_priv(dev); + xennet_release_tx_bufs(np); + xennet_release_rx_bufs(np); + gnttab_free_grant_references(np->gref_tx_head); + gnttab_free_grant_references(np->gref_rx_head); +} + +static struct net_device * __devinit xennet_create_dev(struct xenbus_device *dev) +{ + int i, err; + struct net_device *netdev; + struct netfront_info *np; + + netdev = alloc_etherdev(sizeof(struct netfront_info)); + if (!netdev) { + printk(KERN_WARNING "%s> alloc_etherdev failed.\n", + __func__); + return ERR_PTR(-ENOMEM); + } + + np = netdev_priv(netdev); + np->xbdev = dev; + + spin_lock_init(&np->tx_lock); + spin_lock_init(&np->rx_lock); + + skb_queue_head_init(&np->rx_batch); + np->rx_target = RX_DFL_MIN_TARGET; + np->rx_min_target = RX_DFL_MIN_TARGET; + np->rx_max_target = RX_MAX_TARGET; + + init_timer(&np->rx_refill_timer); + np->rx_refill_timer.data = (unsigned long)netdev; + np->rx_refill_timer.function = rx_refill_timeout; + + /* Initialise tx_skbs as a free chain containing every entry. */ + np->tx_skb_freelist = 0; + for (i = 0; i < NET_TX_RING_SIZE; i++) { + np->tx_skbs[i].link = i+1; + np->grant_tx_ref[i] = GRANT_INVALID_REF; + } + + /* Clear out rx_skbs */ + for (i = 0; i < NET_RX_RING_SIZE; i++) { + np->rx_skbs[i] = NULL; + np->grant_rx_ref[i] = GRANT_INVALID_REF; + } + + /* A grant for every tx ring slot */ + if (gnttab_alloc_grant_references(TX_MAX_TARGET, + &np->gref_tx_head) < 0) { + printk(KERN_ALERT "#### netfront can't alloc tx grant refs\n"); + err = -ENOMEM; + goto exit; + } + /* A grant for every rx ring slot */ + if (gnttab_alloc_grant_references(RX_MAX_TARGET, + &np->gref_rx_head) < 0) { + printk(KERN_ALERT "#### netfront can't alloc rx grant refs\n"); + err = -ENOMEM; + goto exit_free_tx; + } + + netdev->open = xennet_open; + netdev->hard_start_xmit = xennet_start_xmit; + netdev->stop = xennet_close; + netdev->get_stats = xennet_get_stats; + netdev->poll = xennet_poll; + netdev->uninit = xennet_uninit; + netdev->change_mtu = xennet_change_mtu; + netdev->weight = 64; + netdev->features = NETIF_F_IP_CSUM; + + SET_ETHTOOL_OPS(netdev, &xennet_ethtool_ops); + SET_MODULE_OWNER(netdev); + SET_NETDEV_DEV(netdev, &dev->dev); + + np->netdev = netdev; + + netif_carrier_off(netdev); + + return netdev; + + exit_free_tx: + gnttab_free_grant_references(np->gref_tx_head); + exit: + free_netdev(netdev); + return ERR_PTR(err); +} + +/** + * Entry point to this code when a new device is created. Allocate the basic + * structures and the ring buffers for communication with the backend, and + * inform the backend of the appropriate details for those. + */ +static int __devinit netfront_probe(struct xenbus_device *dev, + const struct xenbus_device_id *id) +{ + int err; + struct net_device *netdev; + struct netfront_info *info; + + netdev = xennet_create_dev(dev); + if (IS_ERR(netdev)) { + err = PTR_ERR(netdev); + xenbus_dev_fatal(dev, err, "creating netdev"); + return err; + } + + info = netdev_priv(netdev); + dev->dev.driver_data = info; + + err = register_netdev(info->netdev); + if (err) { + printk(KERN_WARNING "%s: register_netdev err=%d\n", + __func__, err); + goto fail; + } + + err = xennet_sysfs_addif(info->netdev); + if (err) { + unregister_netdev(info->netdev); + printk(KERN_WARNING "%s: add sysfs failed err=%d\n", + __func__, err); + goto fail; + } + + return 0; + + fail: + free_netdev(netdev); + dev->dev.driver_data = NULL; + return err; +} + +static void xennet_end_access(int ref, void *page) +{ + /* This frees the page as a side-effect */ + if (ref != GRANT_INVALID_REF) + gnttab_end_foreign_access(ref, 0, (unsigned long)page); +} + +static void xennet_disconnect_backend(struct netfront_info *info) +{ + /* Stop old i/f to prevent errors whilst we rebuild the state. */ + spin_lock_bh(&info->rx_lock); + spin_lock_irq(&info->tx_lock); + netif_carrier_off(info->netdev); + spin_unlock_irq(&info->tx_lock); + spin_unlock_bh(&info->rx_lock); + + if (info->netdev->irq) + unbind_from_irqhandler(info->netdev->irq, info->netdev); + info->evtchn = info->netdev->irq = 0; + + /* End access and free the pages */ + xennet_end_access(info->tx_ring_ref, info->tx.sring); + xennet_end_access(info->rx_ring_ref, info->rx.sring); + + info->tx_ring_ref = GRANT_INVALID_REF; + info->rx_ring_ref = GRANT_INVALID_REF; + info->tx.sring = NULL; + info->rx.sring = NULL; +} + +/** + * We are reconnecting to the backend, due to a suspend/resume, or a backend + * driver restart. We tear down our netif structure and recreate it, but + * leave the device-layer structures intact so that this is transparent to the + * rest of the kernel. + */ +static int netfront_resume(struct xenbus_device *dev) +{ + struct netfront_info *info = dev->dev.driver_data; + + dev_dbg(&dev->dev, "%s\n", dev->nodename); + + xennet_disconnect_backend(info); + return 0; +} + +static int xen_net_read_mac(struct xenbus_device *dev, u8 mac[]) +{ + char *s, *e, *macstr; + int i; + + macstr = s = xenbus_read(XBT_NIL, dev->nodename, "mac", NULL); + if (IS_ERR(macstr)) + return PTR_ERR(macstr); + + for (i = 0; i < ETH_ALEN; i++) { + mac[i] = simple_strtoul(s, &e, 16); + if ((s == e) || (*e != ((i == ETH_ALEN-1) ? '\0' : ':'))) { + kfree(macstr); + return -ENOENT; + } + s = e+1; + } + + kfree(macstr); + return 0; +} + +static irqreturn_t xennet_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + struct netfront_info *np = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&np->tx_lock, flags); + + if (likely(netif_carrier_ok(dev))) { + xennet_tx_buf_gc(dev); + /* Under tx_lock: protects access to rx shared-ring indexes. */ + if (RING_HAS_UNCONSUMED_RESPONSES(&np->rx)) + netif_rx_schedule(dev); + } + + spin_unlock_irqrestore(&np->tx_lock, flags); + + return IRQ_HANDLED; +} + +static int setup_netfront(struct xenbus_device *dev, struct netfront_info *info) +{ + struct xen_netif_tx_sring *txs; + struct xen_netif_rx_sring *rxs; + int err; + struct net_device *netdev = info->netdev; + + info->tx_ring_ref = GRANT_INVALID_REF; + info->rx_ring_ref = GRANT_INVALID_REF; + info->rx.sring = NULL; + info->tx.sring = NULL; + netdev->irq = 0; + + err = xen_net_read_mac(dev, netdev->dev_addr); + if (err) { + xenbus_dev_fatal(dev, err, "parsing %s/mac", dev->nodename); + goto fail; + } + + txs = (struct xen_netif_tx_sring *)get_zeroed_page(GFP_KERNEL); + if (!txs) { + err = -ENOMEM; + xenbus_dev_fatal(dev, err, "allocating tx ring page"); + goto fail; + } + SHARED_RING_INIT(txs); + FRONT_RING_INIT(&info->tx, txs, PAGE_SIZE); + + err = xenbus_grant_ring(dev, virt_to_mfn(txs)); + if (err < 0) { + free_page((unsigned long)txs); + goto fail; + } + + info->tx_ring_ref = err; + rxs = (struct xen_netif_rx_sring *)get_zeroed_page(GFP_KERNEL); + if (!rxs) { + err = -ENOMEM; + xenbus_dev_fatal(dev, err, "allocating rx ring page"); + goto fail; + } + SHARED_RING_INIT(rxs); + FRONT_RING_INIT(&info->rx, rxs, PAGE_SIZE); + + err = xenbus_grant_ring(dev, virt_to_mfn(rxs)); + if (err < 0) { + free_page((unsigned long)rxs); + goto fail; + } + info->rx_ring_ref = err; + + err = xenbus_alloc_evtchn(dev, &info->evtchn); + if (err) + goto fail; + + err = bind_evtchn_to_irqhandler(info->evtchn, xennet_interrupt, + IRQF_SAMPLE_RANDOM, netdev->name, + netdev); + if (err < 0) + goto fail; + netdev->irq = err; + return 0; + + fail: + return err; +} + +/* Common code used when first setting up, and when resuming. */ +static int talk_to_backend(struct xenbus_device *dev, + struct netfront_info *info) +{ + const char *message; + struct xenbus_transaction xbt; + int err; + + /* Create shared ring, alloc event channel. */ + err = setup_netfront(dev, info); + if (err) + goto out; + +again: + err = xenbus_transaction_start(&xbt); + if (err) { + xenbus_dev_fatal(dev, err, "starting transaction"); + goto destroy_ring; + } + + err = xenbus_printf(xbt, dev->nodename, "tx-ring-ref", "%u", + info->tx_ring_ref); + if (err) { + message = "writing tx ring-ref"; + goto abort_transaction; + } + err = xenbus_printf(xbt, dev->nodename, "rx-ring-ref", "%u", + info->rx_ring_ref); + if (err) { + message = "writing rx ring-ref"; + goto abort_transaction; + } + err = xenbus_printf(xbt, dev->nodename, + "event-channel", "%u", info->evtchn); + if (err) { + message = "writing event-channel"; + goto abort_transaction; + } + + err = xenbus_printf(xbt, dev->nodename, "request-rx-copy", "%u", + 1); + if (err) { + message = "writing request-rx-copy"; + goto abort_transaction; + } + + err = xenbus_printf(xbt, dev->nodename, "feature-rx-notify", "%d", 1); + if (err) { + message = "writing feature-rx-notify"; + goto abort_transaction; + } + + err = xenbus_printf(xbt, dev->nodename, "feature-sg", "%d", 1); + if (err) { + message = "writing feature-sg"; + goto abort_transaction; + } + + err = xenbus_printf(xbt, dev->nodename, "feature-gso-tcpv4", "%d", 1); + if (err) { + message = "writing feature-gso-tcpv4"; + goto abort_transaction; + } + + err = xenbus_transaction_end(xbt, 0); + if (err) { + if (err == -EAGAIN) + goto again; + xenbus_dev_fatal(dev, err, "completing transaction"); + goto destroy_ring; + } + + return 0; + + abort_transaction: + xenbus_transaction_end(xbt, 1); + xenbus_dev_fatal(dev, err, "%s", message); + destroy_ring: + xennet_disconnect_backend(info); + out: + return err; +} + +static int xennet_set_sg(struct net_device *dev, u32 data) +{ + if (data) { + struct netfront_info *np = netdev_priv(dev); + int val; + + if (xenbus_scanf(XBT_NIL, np->xbdev->otherend, "feature-sg", + "%d", &val) < 0) + val = 0; + if (!val) + return -ENOSYS; + } else if (dev->mtu > ETH_DATA_LEN) + dev->mtu = ETH_DATA_LEN; + + return ethtool_op_set_sg(dev, data); +} + +static int xennet_set_tso(struct net_device *dev, u32 data) +{ + if (data) { + struct netfront_info *np = netdev_priv(dev); + int val; + + if (xenbus_scanf(XBT_NIL, np->xbdev->otherend, + "feature-gso-tcpv4", "%d", &val) < 0) + val = 0; + if (!val) + return -ENOSYS; + } + + return ethtool_op_set_tso(dev, data); +} + +static void xennet_set_features(struct net_device *dev) +{ + /* Turn off all GSO bits except ROBUST. */ + dev->features &= (1 << NETIF_F_GSO_SHIFT) - 1; + dev->features |= NETIF_F_GSO_ROBUST; + xennet_set_sg(dev, 0); + + /* We need checksum offload to enable scatter/gather and TSO. */ + if (!(dev->features & NETIF_F_IP_CSUM)) + return; + + if (!xennet_set_sg(dev, 1)) + xennet_set_tso(dev, 1); +} + +static int xennet_connect(struct net_device *dev) +{ + struct netfront_info *np = netdev_priv(dev); + int i, requeue_idx, err; + struct sk_buff *skb; + grant_ref_t ref; + struct xen_netif_rx_request *req; + unsigned int feature_rx_copy; + + err = xenbus_scanf(XBT_NIL, np->xbdev->otherend, + "feature-rx-copy", "%u", &feature_rx_copy); + if (err != 1) + feature_rx_copy = 0; + + if (!feature_rx_copy) { + dev_info(&dev->dev, + "backend does not support copying recieve path"); + return -ENODEV; + } + + err = talk_to_backend(np->xbdev, np); + if (err) + return err; + + xennet_set_features(dev); + + spin_lock_bh(&np->rx_lock); + spin_lock_irq(&np->tx_lock); + + /* Step 1: Discard all pending TX packet fragments. */ + xennet_release_tx_bufs(np); + + /* Step 2: Rebuild the RX buffer freelist and the RX ring itself. */ + for (requeue_idx = 0, i = 0; i < NET_RX_RING_SIZE; i++) { + if (!np->rx_skbs[i]) + continue; + + skb = np->rx_skbs[requeue_idx] = xennet_get_rx_skb(np, i); + ref = np->grant_rx_ref[requeue_idx] = xennet_get_rx_ref(np, i); + req = RING_GET_REQUEST(&np->rx, requeue_idx); + + gnttab_grant_foreign_access_ref( + ref, np->xbdev->otherend_id, + pfn_to_mfn(page_to_pfn(skb_shinfo(skb)-> + frags->page)), + 0); + req->gref = ref; + req->id = requeue_idx; + + requeue_idx++; + } + + np->rx.req_prod_pvt = requeue_idx; + + /* + * Step 3: All public and private state should now be sane. Get + * ready to start sending and receiving packets and give the driver + * domain a kick because we've probably just requeued some + * packets. + */ + netif_carrier_on(np->netdev); + notify_remote_via_irq(np->netdev->irq); + xennet_tx_buf_gc(dev); + xennet_alloc_rx_buffers(dev); + + spin_unlock_irq(&np->tx_lock); + spin_unlock_bh(&np->rx_lock); + + return 0; +} + +/** + * Callback received when the backend's state changes. + */ +static void backend_changed(struct xenbus_device *dev, + enum xenbus_state backend_state) +{ + struct netfront_info *np = dev->dev.driver_data; + struct net_device *netdev = np->netdev; + + dev_dbg(&dev->dev, "%s\n", xenbus_strstate(backend_state)); + + switch (backend_state) { + case XenbusStateInitialising: + case XenbusStateInitialised: + case XenbusStateConnected: + case XenbusStateUnknown: + case XenbusStateClosed: + break; + + case XenbusStateInitWait: + if (dev->state != XenbusStateInitialising) + break; + if (xennet_connect(netdev) != 0) + break; + xenbus_switch_state(dev, XenbusStateConnected); + break; + + case XenbusStateClosing: + xenbus_frontend_closed(dev); + break; + } +} + +static struct ethtool_ops xennet_ethtool_ops = +{ + .get_tx_csum = ethtool_op_get_tx_csum, + .set_tx_csum = ethtool_op_set_tx_csum, + .get_sg = ethtool_op_get_sg, + .set_sg = xennet_set_sg, + .get_tso = ethtool_op_get_tso, + .set_tso = xennet_set_tso, + .get_link = ethtool_op_get_link, +}; + +#ifdef CONFIG_SYSFS +static ssize_t show_rxbuf_min(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct net_device *netdev = to_net_dev(dev); + struct netfront_info *info = netdev_priv(netdev); + + return sprintf(buf, "%u\n", info->rx_min_target); +} + +static ssize_t store_rxbuf_min(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct net_device *netdev = to_net_dev(dev); + struct netfront_info *np = netdev_priv(netdev); + char *endp; + unsigned long target; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + target = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EBADMSG; + + if (target < RX_MIN_TARGET) + target = RX_MIN_TARGET; + if (target > RX_MAX_TARGET) + target = RX_MAX_TARGET; + + spin_lock_bh(&np->rx_lock); + if (target > np->rx_max_target) + np->rx_max_target = target; + np->rx_min_target = target; + if (target > np->rx_target) + np->rx_target = target; + + xennet_alloc_rx_buffers(netdev); + + spin_unlock_bh(&np->rx_lock); + return len; +} + +static ssize_t show_rxbuf_max(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct net_device *netdev = to_net_dev(dev); + struct netfront_info *info = netdev_priv(netdev); + + return sprintf(buf, "%u\n", info->rx_max_target); +} + +static ssize_t store_rxbuf_max(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct net_device *netdev = to_net_dev(dev); + struct netfront_info *np = netdev_priv(netdev); + char *endp; + unsigned long target; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + target = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EBADMSG; + + if (target < RX_MIN_TARGET) + target = RX_MIN_TARGET; + if (target > RX_MAX_TARGET) + target = RX_MAX_TARGET; + + spin_lock_bh(&np->rx_lock); + if (target < np->rx_min_target) + np->rx_min_target = target; + np->rx_max_target = target; + if (target < np->rx_target) + np->rx_target = target; + + xennet_alloc_rx_buffers(netdev); + + spin_unlock_bh(&np->rx_lock); + return len; +} + +static ssize_t show_rxbuf_cur(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct net_device *netdev = to_net_dev(dev); + struct netfront_info *info = netdev_priv(netdev); + + return sprintf(buf, "%u\n", info->rx_target); +} + +static struct device_attribute xennet_attrs[] = { + __ATTR(rxbuf_min, S_IRUGO|S_IWUSR, show_rxbuf_min, store_rxbuf_min), + __ATTR(rxbuf_max, S_IRUGO|S_IWUSR, show_rxbuf_max, store_rxbuf_max), + __ATTR(rxbuf_cur, S_IRUGO, show_rxbuf_cur, NULL), +}; + +static int xennet_sysfs_addif(struct net_device *netdev) +{ + int i; + int err; + + for (i = 0; i < ARRAY_SIZE(xennet_attrs); i++) { + err = device_create_file(&netdev->dev, + &xennet_attrs[i]); + if (err) + goto fail; + } + return 0; + + fail: + while (--i >= 0) + device_remove_file(&netdev->dev, &xennet_attrs[i]); + return err; +} + +static void xennet_sysfs_delif(struct net_device *netdev) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(xennet_attrs); i++) + device_remove_file(&netdev->dev, &xennet_attrs[i]); +} + +#endif /* CONFIG_SYSFS */ + +static struct xenbus_device_id netfront_ids[] = { + { "vif" }, + { "" } +}; + + +static int __devexit xennet_remove(struct xenbus_device *dev) +{ + struct netfront_info *info = dev->dev.driver_data; + + dev_dbg(&dev->dev, "%s\n", dev->nodename); + + unregister_netdev(info->netdev); + + xennet_disconnect_backend(info); + + del_timer_sync(&info->rx_refill_timer); + + xennet_sysfs_delif(info->netdev); + + free_netdev(info->netdev); + + return 0; +} + +static struct xenbus_driver netfront = { + .name = "vif", + .owner = THIS_MODULE, + .ids = netfront_ids, + .probe = netfront_probe, + .remove = __devexit_p(xennet_remove), + .resume = netfront_resume, + .otherend_changed = backend_changed, +}; + +static int __init netif_init(void) +{ + if (!is_running_on_xen()) + return -ENODEV; + + if (is_initial_xendomain()) + return 0; + + printk(KERN_INFO "Initialising Xen virtual ethernet driver.\n"); + + return xenbus_register_frontend(&netfront); +} +module_init(netif_init); + + +static void __exit netif_exit(void) +{ + if (is_initial_xendomain()) + return; + + return xenbus_unregister_driver(&netfront); +} +module_exit(netif_exit); + +MODULE_DESCRIPTION("Xen virtual network device frontend"); +MODULE_LICENSE("GPL"); diff --git a/drivers/nubus/nubus.c b/drivers/nubus/nubus.c index 3a0a3a734933..e503c9c98032 100644 --- a/drivers/nubus/nubus.c +++ b/drivers/nubus/nubus.c @@ -466,9 +466,8 @@ static struct nubus_dev* __init parent->base, dir.base); /* Actually we should probably panic if this fails */ - if ((dev = kmalloc(sizeof(*dev), GFP_ATOMIC)) == NULL) + if ((dev = kzalloc(sizeof(*dev), GFP_ATOMIC)) == NULL) return NULL; - memset(dev, 0, sizeof(*dev)); dev->resid = parent->type; dev->directory = dir.base; dev->board = board; @@ -800,9 +799,8 @@ static struct nubus_board* __init nubus_add_board(int slot, int bytelanes) nubus_rewind(&rp, FORMAT_BLOCK_SIZE, bytelanes); /* Actually we should probably panic if this fails */ - if ((board = kmalloc(sizeof(*board), GFP_ATOMIC)) == NULL) + if ((board = kzalloc(sizeof(*board), GFP_ATOMIC)) == NULL) return NULL; - memset(board, 0, sizeof(*board)); board->fblock = rp; /* Dump the format block for debugging purposes */ diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c index a68b3b3761a2..a728a7cd2fc8 100644 --- a/drivers/parisc/hppb.c +++ b/drivers/parisc/hppb.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/mm.h> #include <linux/slab.h> +#include <linux/dma-mapping.h> #include <linux/ioport.h> #include <asm/io.h> diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c index a708c329675e..38cdf9fa36a7 100644 --- a/drivers/parisc/superio.c +++ b/drivers/parisc/superio.c @@ -73,6 +73,7 @@ #include <linux/termios.h> #include <linux/tty.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/delay.h> #include <asm/io.h> diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c index 8b7d84eca05d..802a81d47367 100644 --- a/drivers/parport/parport_cs.c +++ b/drivers/parport/parport_cs.c @@ -105,9 +105,8 @@ static int parport_probe(struct pcmcia_device *link) DEBUG(0, "parport_attach()\n"); /* Create new parport device */ - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; - memset(info, 0, sizeof(*info)); link->priv = info; info->p_dev = link; diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c index 90ea3b8b99b0..bd6ad8b38168 100644 --- a/drivers/parport/parport_serial.c +++ b/drivers/parport/parport_serial.c @@ -324,10 +324,9 @@ static int __devinit parport_serial_pci_probe (struct pci_dev *dev, struct parport_serial_private *priv; int err; - priv = kmalloc (sizeof *priv, GFP_KERNEL); + priv = kzalloc (sizeof *priv, GFP_KERNEL); if (!priv) return -ENOMEM; - memset(priv, 0, sizeof(struct parport_serial_private)); pci_set_drvdata (dev, priv); err = pci_enable_device (dev); diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c index 6846fb42b399..ad90a01b0dfc 100644 --- a/drivers/pci/pcie/aer/aerdrv.c +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -148,11 +148,10 @@ static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev) { struct aer_rpc *rpc; - if (!(rpc = kmalloc(sizeof(struct aer_rpc), + if (!(rpc = kzalloc(sizeof(struct aer_rpc), GFP_KERNEL))) return NULL; - memset(rpc, 0, sizeof(struct aer_rpc)); /* * Initialize Root lock access, e_lock, to Root Error Status Reg, * Root Error ID Reg, and Root error producer/consumer index. diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index 50cad3a59a6c..7c93a108f9b8 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -651,6 +651,7 @@ static int pccardd(void *__skt) add_wait_queue(&skt->thread_wait, &wait); complete(&skt->thread_done); + set_freezable(); for (;;) { unsigned long flags; unsigned int events; diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 143c6efc478a..a99607142fc8 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -1127,6 +1127,34 @@ static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, #endif +/************************ runtime PM support ***************************/ + +static int pcmcia_dev_suspend(struct device *dev, pm_message_t state); +static int pcmcia_dev_resume(struct device *dev); + +static int runtime_suspend(struct device *dev) +{ + int rc; + + down(&dev->sem); + rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); + up(&dev->sem); + if (!rc) + dev->power.power_state.event = PM_EVENT_SUSPEND; + return rc; +} + +static void runtime_resume(struct device *dev) +{ + int rc; + + down(&dev->sem); + rc = pcmcia_dev_resume(dev); + up(&dev->sem); + if (!rc) + dev->power.power_state.event = PM_EVENT_ON; +} + /************************ per-device sysfs output ***************************/ #define pcmcia_device_attr(field, test, format) \ @@ -1173,9 +1201,9 @@ static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute return -EINVAL; if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) - ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); + ret = runtime_suspend(dev); else if (p_dev->suspended && !strncmp(buf, "on", 2)) - dpm_runtime_resume(dev); + runtime_resume(dev); return ret ? ret : count; } @@ -1312,10 +1340,10 @@ static int pcmcia_bus_suspend_callback(struct device *dev, void * _data) struct pcmcia_socket *skt = _data; struct pcmcia_device *p_dev = to_pcmcia_dev(dev); - if (p_dev->socket != skt) + if (p_dev->socket != skt || p_dev->suspended) return 0; - return dpm_runtime_suspend(dev, PMSG_SUSPEND); + return runtime_suspend(dev); } static int pcmcia_bus_resume_callback(struct device *dev, void * _data) @@ -1323,10 +1351,10 @@ static int pcmcia_bus_resume_callback(struct device *dev, void * _data) struct pcmcia_socket *skt = _data; struct pcmcia_device *p_dev = to_pcmcia_dev(dev); - if (p_dev->socket != skt) + if (p_dev->socket != skt || !p_dev->suspended) return 0; - dpm_runtime_resume(dev); + runtime_resume(dev); return 0; } diff --git a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c index 3b40f9623cc9..3c45142c40b2 100644 --- a/drivers/pcmcia/m8xx_pcmcia.c +++ b/drivers/pcmcia/m8xx_pcmcia.c @@ -113,7 +113,7 @@ MODULE_LICENSE("Dual MPL/GPL"); #define CONFIG_PCMCIA_SLOT_B #endif -#endif /* !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B) */ +#endif /* !defined(CONFIG_PCMCIA_SLOT_A) && !defined(CONFIG_PCMCIA_SLOT_B) */ #if defined(CONFIG_PCMCIA_SLOT_A) && defined(CONFIG_PCMCIA_SLOT_B) @@ -146,9 +146,9 @@ MODULE_LICENSE("Dual MPL/GPL"); /* ------------------------------------------------------------------------- */ -#define PCMCIA_MEM_WIN_BASE 0xe0000000 /* base address for memory window 0 */ -#define PCMCIA_MEM_WIN_SIZE 0x04000000 /* each memory window is 64 MByte */ -#define PCMCIA_IO_WIN_BASE _IO_BASE /* base address for io window 0 */ +#define PCMCIA_MEM_WIN_BASE 0xe0000000 /* base address for memory window 0 */ +#define PCMCIA_MEM_WIN_SIZE 0x04000000 /* each memory window is 64 MByte */ +#define PCMCIA_IO_WIN_BASE _IO_BASE /* base address for io window 0 */ /* ------------------------------------------------------------------------- */ static int pcmcia_schlvl; @@ -169,8 +169,8 @@ static u32 *m8xx_pgcrx[2]; */ struct pcmcia_win { - u32 br; - u32 or; + u32 br; + u32 or; }; /* @@ -214,7 +214,7 @@ struct pcmcia_win { /* we keep one lookup table per socket to check flags */ -#define PCMCIA_EVENTS_MAX 5 /* 4 max at a time + termination */ +#define PCMCIA_EVENTS_MAX 5 /* 4 max at a time + termination */ struct event_table { u32 regbit; @@ -224,8 +224,8 @@ struct event_table { static const char driver_name[] = "m8xx-pcmcia"; struct socket_info { - void (*handler)(void *info, u32 events); - void *info; + void (*handler) (void *info, u32 events); + void *info; u32 slot; pcmconf8xx_t *pcmcia; @@ -234,7 +234,7 @@ struct socket_info { socket_state_t state; struct pccard_mem_map mem_win[PCMCIA_MEM_WIN_NO]; - struct pccard_io_map io_win[PCMCIA_IO_WIN_NO]; + struct pccard_io_map io_win[PCMCIA_IO_WIN_NO]; struct event_table events[PCMCIA_EVENTS_MAX]; struct pcmcia_socket socket; }; @@ -248,8 +248,7 @@ static struct socket_info socket[PCMCIA_SOCKETS_NO]; #define M8XX_SIZES_NO 32 -static const u32 m8xx_size_to_gray[M8XX_SIZES_NO] = -{ +static const u32 m8xx_size_to_gray[M8XX_SIZES_NO] = { 0x00000001, 0x00000002, 0x00000008, 0x00000004, 0x00000080, 0x00000040, 0x00000010, 0x00000020, 0x00008000, 0x00004000, 0x00001000, 0x00002000, @@ -265,7 +264,7 @@ static const u32 m8xx_size_to_gray[M8XX_SIZES_NO] = static irqreturn_t m8xx_interrupt(int irq, void *dev); -#define PCMCIA_BMT_LIMIT (15*4) /* Bus Monitor Timeout value */ +#define PCMCIA_BMT_LIMIT (15*4) /* Bus Monitor Timeout value */ /* ------------------------------------------------------------------------- */ /* board specific stuff: */ @@ -289,8 +288,9 @@ static int voltage_set(int slot, int vcc, int vpp) { u32 reg = 0; - switch(vcc) { - case 0: break; + switch (vcc) { + case 0: + break; case 33: reg |= BCSR1_PCVCTL4; break; @@ -301,11 +301,12 @@ static int voltage_set(int slot, int vcc, int vpp) return 1; } - switch(vpp) { - case 0: break; + switch (vpp) { + case 0: + break; case 33: case 50: - if(vcc == vpp) + if (vcc == vpp) reg |= BCSR1_PCVCTL6; else return 1; @@ -316,25 +317,29 @@ static int voltage_set(int slot, int vcc, int vpp) return 1; } - if(!((vcc == 50) || (vcc == 0))) + if (!((vcc == 50) || (vcc == 0))) return 1; /* first, turn off all power */ - out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) & ~(BCSR1_PCVCTL4 | BCSR1_PCVCTL5 | BCSR1_PCVCTL6 | BCSR1_PCVCTL7)); + out_be32(((u32 *) RPX_CSR_ADDR), + in_be32(((u32 *) RPX_CSR_ADDR)) & ~(BCSR1_PCVCTL4 | + BCSR1_PCVCTL5 | + BCSR1_PCVCTL6 | + BCSR1_PCVCTL7)); /* enable new powersettings */ - out_be32(((u32 *)RPX_CSR_ADDR), in_be32(((u32 *)RPX_CSR_ADDR)) | reg); + out_be32(((u32 *) RPX_CSR_ADDR), in_be32(((u32 *) RPX_CSR_ADDR)) | reg); return 0; } #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V -#define hardware_enable(_slot_) /* No hardware to enable */ -#define hardware_disable(_slot_) /* No hardware to disable */ +#define hardware_enable(_slot_) /* No hardware to enable */ +#define hardware_disable(_slot_) /* No hardware to disable */ -#endif /* CONFIG_RPXCLASSIC */ +#endif /* CONFIG_RPXCLASSIC */ /* FADS Boards from Motorola */ @@ -346,43 +351,45 @@ static int voltage_set(int slot, int vcc, int vpp) { u32 reg = 0; - switch(vcc) { - case 0: - break; - case 33: - reg |= BCSR1_PCCVCC0; - break; - case 50: - reg |= BCSR1_PCCVCC1; - break; - default: - return 1; + switch (vcc) { + case 0: + break; + case 33: + reg |= BCSR1_PCCVCC0; + break; + case 50: + reg |= BCSR1_PCCVCC1; + break; + default: + return 1; } - switch(vpp) { - case 0: - break; - case 33: - case 50: - if(vcc == vpp) - reg |= BCSR1_PCCVPP1; - else - return 1; - break; - case 120: - if ((vcc == 33) || (vcc == 50)) - reg |= BCSR1_PCCVPP0; - else - return 1; - default: + switch (vpp) { + case 0: + break; + case 33: + case 50: + if (vcc == vpp) + reg |= BCSR1_PCCVPP1; + else return 1; + break; + case 120: + if ((vcc == 33) || (vcc == 50)) + reg |= BCSR1_PCCVPP0; + else + return 1; + default: + return 1; } /* first, turn off all power */ - out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) & ~(BCSR1_PCCVCC_MASK | BCSR1_PCCVPP_MASK)); + out_be32((u32 *) BCSR1, + in_be32((u32 *) BCSR1) & ~(BCSR1_PCCVCC_MASK | + BCSR1_PCCVPP_MASK)); /* enable new powersettings */ - out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) | reg); + out_be32((u32 *) BCSR1, in_be32((u32 *) BCSR1) | reg); return 0; } @@ -391,12 +398,12 @@ static int voltage_set(int slot, int vcc, int vpp) static void hardware_enable(int slot) { - out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) & ~BCSR1_PCCEN); + out_be32((u32 *) BCSR1, in_be32((u32 *) BCSR1) & ~BCSR1_PCCEN); } static void hardware_disable(int slot) { - out_be32((u32 *)BCSR1, in_be32((u32 *)BCSR1) | BCSR1_PCCEN); + out_be32((u32 *) BCSR1, in_be32((u32 *) BCSR1) | BCSR1_PCCEN); } #endif @@ -410,7 +417,7 @@ static void hardware_disable(int slot) static inline void hardware_enable(int slot) { - m8xx_pcmcia_ops.hw_ctrl(slot, 1); + m8xx_pcmcia_ops.hw_ctrl(slot, 1); } static inline void hardware_disable(int slot) @@ -436,52 +443,53 @@ static int voltage_set(int slot, int vcc, int vpp) { u8 reg = 0; - switch(vcc) { - case 0: - break; - case 33: - reg |= CSR2_VCC_33; - break; - case 50: - reg |= CSR2_VCC_50; - break; - default: - return 1; + switch (vcc) { + case 0: + break; + case 33: + reg |= CSR2_VCC_33; + break; + case 50: + reg |= CSR2_VCC_50; + break; + default: + return 1; } - switch(vpp) { - case 0: - break; - case 33: - case 50: - if(vcc == vpp) - reg |= CSR2_VPP_VCC; - else - return 1; - break; - case 120: - if ((vcc == 33) || (vcc == 50)) - reg |= CSR2_VPP_12; - else - return 1; - default: + switch (vpp) { + case 0: + break; + case 33: + case 50: + if (vcc == vpp) + reg |= CSR2_VPP_VCC; + else + return 1; + break; + case 120: + if ((vcc == 33) || (vcc == 50)) + reg |= CSR2_VPP_12; + else return 1; + default: + return 1; } /* first, turn off all power */ - out_8((u8 *)MBX_CSR2_ADDR, in_8((u8 *)MBX_CSR2_ADDR) & ~(CSR2_VCC_MASK | CSR2_VPP_MASK)); + out_8((u8 *) MBX_CSR2_ADDR, + in_8((u8 *) MBX_CSR2_ADDR) & ~(CSR2_VCC_MASK | CSR2_VPP_MASK)); /* enable new powersettings */ - out_8((u8 *)MBX_CSR2_ADDR, in_8((u8 *)MBX_CSR2_ADDR) | reg); + out_8((u8 *) MBX_CSR2_ADDR, in_8((u8 *) MBX_CSR2_ADDR) | reg); return 0; } #define socket_get(_slot_) PCMCIA_SOCKET_KEY_5V -#define hardware_enable(_slot_) /* No hardware to enable */ -#define hardware_disable(_slot_) /* No hardware to disable */ +#define hardware_enable(_slot_) /* No hardware to enable */ +#define hardware_disable(_slot_) /* No hardware to disable */ -#endif /* CONFIG_MBX */ +#endif /* CONFIG_MBX */ #if defined(CONFIG_PRxK) #include <asm/cpld.h> @@ -495,43 +503,46 @@ static int voltage_set(int slot, int vcc, int vpp) u8 regread; cpld_regs *ccpld = get_cpld(); - switch(vcc) { - case 0: - break; - case 33: - reg |= PCMCIA_VCC_33; - break; - case 50: - reg |= PCMCIA_VCC_50; - break; - default: - return 1; + switch (vcc) { + case 0: + break; + case 33: + reg |= PCMCIA_VCC_33; + break; + case 50: + reg |= PCMCIA_VCC_50; + break; + default: + return 1; } - switch(vpp) { - case 0: - break; - case 33: - case 50: - if(vcc == vpp) - reg |= PCMCIA_VPP_VCC; - else - return 1; - break; - case 120: - if ((vcc == 33) || (vcc == 50)) - reg |= PCMCIA_VPP_12; - else - return 1; - default: + switch (vpp) { + case 0: + break; + case 33: + case 50: + if (vcc == vpp) + reg |= PCMCIA_VPP_VCC; + else return 1; + break; + case 120: + if ((vcc == 33) || (vcc == 50)) + reg |= PCMCIA_VPP_12; + else + return 1; + default: + return 1; } reg = reg >> (slot << 2); regread = in_8(&ccpld->fpga_pc_ctl); - if (reg != (regread & ((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2)))) { + if (reg != + (regread & ((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2)))) { /* enable new powersettings */ - regread = regread & ~((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> (slot << 2)); + regread = + regread & ~((PCMCIA_VCC_MASK | PCMCIA_VPP_MASK) >> + (slot << 2)); out_8(&ccpld->fpga_pc_ctl, reg | regread); msleep(100); } @@ -540,10 +551,10 @@ static int voltage_set(int slot, int vcc, int vpp) } #define socket_get(_slot_) PCMCIA_SOCKET_KEY_LV -#define hardware_enable(_slot_) /* No hardware to enable */ -#define hardware_disable(_slot_) /* No hardware to disable */ +#define hardware_enable(_slot_) /* No hardware to enable */ +#define hardware_disable(_slot_) /* No hardware to disable */ -#endif /* CONFIG_PRxK */ +#endif /* CONFIG_PRxK */ static u32 pending_events[PCMCIA_SOCKETS_NO]; static DEFINE_SPINLOCK(pending_event_lock); @@ -553,7 +564,7 @@ static irqreturn_t m8xx_interrupt(int irq, void *dev) struct socket_info *s; struct event_table *e; unsigned int i, events, pscr, pipr, per; - pcmconf8xx_t *pcmcia = socket[0].pcmcia; + pcmconf8xx_t *pcmcia = socket[0].pcmcia; dprintk("Interrupt!\n"); /* get interrupt sources */ @@ -562,16 +573,16 @@ static irqreturn_t m8xx_interrupt(int irq, void *dev) pipr = in_be32(&pcmcia->pcmc_pipr); per = in_be32(&pcmcia->pcmc_per); - for(i = 0; i < PCMCIA_SOCKETS_NO; i++) { + for (i = 0; i < PCMCIA_SOCKETS_NO; i++) { s = &socket[i]; e = &s->events[0]; events = 0; - while(e->regbit) { - if(pscr & e->regbit) + while (e->regbit) { + if (pscr & e->regbit) events |= e->eventbit; - e++; + e++; } /* @@ -579,13 +590,11 @@ static irqreturn_t m8xx_interrupt(int irq, void *dev) * not too nice done, * we depend on that CD2 is the bit to the left of CD1... */ - if(events & SS_DETECT) - if(((pipr & M8XX_PCMCIA_CD2(i)) >> 1) ^ - (pipr & M8XX_PCMCIA_CD1(i))) - { + if (events & SS_DETECT) + if (((pipr & M8XX_PCMCIA_CD2(i)) >> 1) ^ + (pipr & M8XX_PCMCIA_CD1(i))) { events &= ~SS_DETECT; } - #ifdef PCMCIA_GLITCHY_CD /* * I've experienced CD problems with my ADS board. @@ -593,24 +602,23 @@ static irqreturn_t m8xx_interrupt(int irq, void *dev) * real change of Card detection. */ - if((events & SS_DETECT) && - ((pipr & - (M8XX_PCMCIA_CD2(i) | M8XX_PCMCIA_CD1(i))) == 0) && - (s->state.Vcc | s->state.Vpp)) { + if ((events & SS_DETECT) && + ((pipr & + (M8XX_PCMCIA_CD2(i) | M8XX_PCMCIA_CD1(i))) == 0) && + (s->state.Vcc | s->state.Vpp)) { events &= ~SS_DETECT; /*printk( "CD glitch workaround - CD = 0x%08x!\n", - (pipr & (M8XX_PCMCIA_CD2(i) - | M8XX_PCMCIA_CD1(i))));*/ + (pipr & (M8XX_PCMCIA_CD2(i) + | M8XX_PCMCIA_CD1(i)))); */ } #endif /* call the handler */ dprintk("slot %u: events = 0x%02x, pscr = 0x%08x, " - "pipr = 0x%08x\n", - i, events, pscr, pipr); + "pipr = 0x%08x\n", i, events, pscr, pipr); - if(events) { + if (events) { spin_lock(&pending_event_lock); pending_events[i] |= events; spin_unlock(&pending_event_lock); @@ -643,11 +651,11 @@ static u32 m8xx_get_graycode(u32 size) { u32 k; - for(k = 0; k < M8XX_SIZES_NO; k++) - if(m8xx_size_to_gray[k] == size) + for (k = 0; k < M8XX_SIZES_NO; k++) + if (m8xx_size_to_gray[k] == size) break; - if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1)) + if ((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1)) k = -1; return k; @@ -657,7 +665,7 @@ static u32 m8xx_get_speed(u32 ns, u32 is_io, u32 bus_freq) { u32 reg, clocks, psst, psl, psht; - if(!ns) { + if (!ns) { /* * We get called with IO maps setup to 0ns @@ -665,10 +673,10 @@ static u32 m8xx_get_speed(u32 ns, u32 is_io, u32 bus_freq) * They should be 255ns. */ - if(is_io) + if (is_io) ns = 255; else - ns = 100; /* fast memory if 0 */ + ns = 100; /* fast memory if 0 */ } /* @@ -679,23 +687,23 @@ static u32 m8xx_get_speed(u32 ns, u32 is_io, u32 bus_freq) /* how we want to adjust the timing - in percent */ -#define ADJ 180 /* 80 % longer accesstime - to be sure */ +#define ADJ 180 /* 80 % longer accesstime - to be sure */ clocks = ((bus_freq / 1000) * ns) / 1000; - clocks = (clocks * ADJ) / (100*1000); - if(clocks >= PCMCIA_BMT_LIMIT) { - printk( "Max access time limit reached\n"); - clocks = PCMCIA_BMT_LIMIT-1; + clocks = (clocks * ADJ) / (100 * 1000); + if (clocks >= PCMCIA_BMT_LIMIT) { + printk("Max access time limit reached\n"); + clocks = PCMCIA_BMT_LIMIT - 1; } - psst = clocks / 7; /* setup time */ - psht = clocks / 7; /* hold time */ - psl = (clocks * 5) / 7; /* strobe length */ + psst = clocks / 7; /* setup time */ + psht = clocks / 7; /* hold time */ + psl = (clocks * 5) / 7; /* strobe length */ psst += clocks - (psst + psht + psl); - reg = psst << 12; - reg |= psl << 7; + reg = psst << 12; + reg |= psl << 7; reg |= psht << 16; return reg; @@ -710,8 +718,8 @@ static int m8xx_get_status(struct pcmcia_socket *sock, unsigned int *value) pipr = in_be32(&pcmcia->pcmc_pipr); - *value = ((pipr & (M8XX_PCMCIA_CD1(lsock) - | M8XX_PCMCIA_CD2(lsock))) == 0) ? SS_DETECT : 0; + *value = ((pipr & (M8XX_PCMCIA_CD1(lsock) + | M8XX_PCMCIA_CD2(lsock))) == 0) ? SS_DETECT : 0; *value |= (pipr & M8XX_PCMCIA_WP(lsock)) ? SS_WRPROT : 0; if (s->state.flags & SS_IOCARD) @@ -795,16 +803,16 @@ static int m8xx_get_status(struct pcmcia_socket *sock, unsigned int *value) /* read out VS1 and VS2 */ reg = (pipr & M8XX_PCMCIA_VS_MASK(lsock)) - >> M8XX_PCMCIA_VS_SHIFT(lsock); + >> M8XX_PCMCIA_VS_SHIFT(lsock); - if(socket_get(lsock) == PCMCIA_SOCKET_KEY_LV) { - switch(reg) { + if (socket_get(lsock) == PCMCIA_SOCKET_KEY_LV) { + switch (reg) { case 1: *value |= SS_3VCARD; - break; /* GND, NC - 3.3V only */ + break; /* GND, NC - 3.3V only */ case 2: *value |= SS_XVCARD; - break; /* NC. GND - x.xV only */ + break; /* NC. GND - x.xV only */ }; } @@ -812,7 +820,7 @@ static int m8xx_get_status(struct pcmcia_socket *sock, unsigned int *value) return 0; } -static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state) +static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t * state) { int lsock = container_of(sock, struct socket_info, socket)->slot; struct socket_info *s = &socket[lsock]; @@ -821,20 +829,20 @@ static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state) unsigned long flags; pcmconf8xx_t *pcmcia = socket[0].pcmcia; - dprintk( "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, " - "io_irq %d, csc_mask %#2.2x)\n", lsock, state->flags, - state->Vcc, state->Vpp, state->io_irq, state->csc_mask); + dprintk("SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, " + "io_irq %d, csc_mask %#2.2x)\n", lsock, state->flags, + state->Vcc, state->Vpp, state->io_irq, state->csc_mask); /* First, set voltage - bail out if invalid */ - if(voltage_set(lsock, state->Vcc, state->Vpp)) + if (voltage_set(lsock, state->Vcc, state->Vpp)) return -EINVAL; - /* Take care of reset... */ - if(state->flags & SS_RESET) - out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXRESET); /* active high */ + if (state->flags & SS_RESET) + out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXRESET); /* active high */ else - out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXRESET); + out_be32(M8XX_PGCRX(lsock), + in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXRESET); /* ... and output enable. */ @@ -846,10 +854,11 @@ static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state) no pullups are present -> the cards act wierd. So right now the buffers are enabled if the power is on. */ - if(state->Vcc || state->Vpp) - out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXOE); /* active low */ + if (state->Vcc || state->Vpp) + out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & ~M8XX_PGCRX_CXOE); /* active low */ else - out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXOE); + out_be32(M8XX_PGCRX(lsock), + in_be32(M8XX_PGCRX(lsock)) | M8XX_PGCRX_CXOE); /* * We'd better turn off interrupts before @@ -866,17 +875,17 @@ static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state) e = &s->events[0]; reg = 0; - if(state->csc_mask & SS_DETECT) { + if (state->csc_mask & SS_DETECT) { e->eventbit = SS_DETECT; reg |= e->regbit = (M8XX_PCMCIA_CD2(lsock) | M8XX_PCMCIA_CD1(lsock)); e++; } - if(state->flags & SS_IOCARD) { + if (state->flags & SS_IOCARD) { /* * I/O card */ - if(state->csc_mask & SS_STSCHG) { + if (state->csc_mask & SS_STSCHG) { e->eventbit = SS_STSCHG; reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock); e++; @@ -884,9 +893,10 @@ static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state) /* * If io_irq is non-zero we should enable irq. */ - if(state->io_irq) { + if (state->io_irq) { out_be32(M8XX_PGCRX(lsock), - in_be32(M8XX_PGCRX(lsock)) | mk_int_int_mask(s->hwirq) << 24); + in_be32(M8XX_PGCRX(lsock)) | + mk_int_int_mask(s->hwirq) << 24); /* * Strange thing here: * The manual does not tell us which interrupt @@ -897,33 +907,32 @@ static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state) * have to be cleared in PSCR in the interrupt handler. */ reg |= M8XX_PCMCIA_RDY_L(lsock); - } - else - out_be32(M8XX_PGCRX(lsock), in_be32(M8XX_PGCRX(lsock)) & 0x00ffffff); - } - else { + } else + out_be32(M8XX_PGCRX(lsock), + in_be32(M8XX_PGCRX(lsock)) & 0x00ffffff); + } else { /* * Memory card */ - if(state->csc_mask & SS_BATDEAD) { + if (state->csc_mask & SS_BATDEAD) { e->eventbit = SS_BATDEAD; reg |= e->regbit = M8XX_PCMCIA_BVD1(lsock); e++; } - if(state->csc_mask & SS_BATWARN) { + if (state->csc_mask & SS_BATWARN) { e->eventbit = SS_BATWARN; reg |= e->regbit = M8XX_PCMCIA_BVD2(lsock); e++; } /* What should I trigger on - low/high,raise,fall? */ - if(state->csc_mask & SS_READY) { + if (state->csc_mask & SS_READY) { e->eventbit = SS_READY; - reg |= e->regbit = 0; //?? + reg |= e->regbit = 0; //?? e++; } } - e->regbit = 0; /* terminate list */ + e->regbit = 0; /* terminate list */ /* * Clear the status changed . @@ -940,7 +949,9 @@ static int m8xx_set_socket(struct pcmcia_socket *sock, socket_state_t *state) * Ones will enable the interrupt. */ - reg |= in_be32(&pcmcia->pcmc_per) & (M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1)); + reg |= + in_be32(&pcmcia-> + pcmc_per) & (M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1)); out_be32(&pcmcia->pcmc_per, reg); spin_unlock_irqrestore(&events_lock, flags); @@ -961,67 +972,66 @@ static int m8xx_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) unsigned int reg, winnr; pcmconf8xx_t *pcmcia = s->pcmcia; - #define M8XX_SIZE (io->stop - io->start + 1) #define M8XX_BASE (PCMCIA_IO_WIN_BASE + io->start) - dprintk( "SetIOMap(%d, %d, %#2.2x, %d ns, " - "%#4.4x-%#4.4x)\n", lsock, io->map, io->flags, - io->speed, io->start, io->stop); + dprintk("SetIOMap(%d, %d, %#2.2x, %d ns, " + "%#4.4x-%#4.4x)\n", lsock, io->map, io->flags, + io->speed, io->start, io->stop); if ((io->map >= PCMCIA_IO_WIN_NO) || (io->start > 0xffff) || (io->stop > 0xffff) || (io->stop < io->start)) return -EINVAL; - if((reg = m8xx_get_graycode(M8XX_SIZE)) == -1) + if ((reg = m8xx_get_graycode(M8XX_SIZE)) == -1) return -EINVAL; - if(io->flags & MAP_ACTIVE) { + if (io->flags & MAP_ACTIVE) { - dprintk( "io->flags & MAP_ACTIVE\n"); + dprintk("io->flags & MAP_ACTIVE\n"); winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO) - + (lsock * PCMCIA_IO_WIN_NO) + io->map; + + (lsock * PCMCIA_IO_WIN_NO) + io->map; /* setup registers */ - w = (void *) &pcmcia->pcmc_pbr0; + w = (void *)&pcmcia->pcmc_pbr0; w += winnr; - out_be32(&w->or, 0); /* turn off window first */ + out_be32(&w->or, 0); /* turn off window first */ out_be32(&w->br, M8XX_BASE); reg <<= 27; - reg |= M8XX_PCMCIA_POR_IO |(lsock << 2); + reg |= M8XX_PCMCIA_POR_IO | (lsock << 2); reg |= m8xx_get_speed(io->speed, 1, s->bus_freq); - if(io->flags & MAP_WRPROT) + if (io->flags & MAP_WRPROT) reg |= M8XX_PCMCIA_POR_WRPROT; - /*if(io->flags & (MAP_16BIT | MAP_AUTOSZ))*/ - if(io->flags & MAP_16BIT) + /*if(io->flags & (MAP_16BIT | MAP_AUTOSZ)) */ + if (io->flags & MAP_16BIT) reg |= M8XX_PCMCIA_POR_16BIT; - if(io->flags & MAP_ACTIVE) + if (io->flags & MAP_ACTIVE) reg |= M8XX_PCMCIA_POR_VALID; out_be32(&w->or, reg); dprintk("Socket %u: Mapped io window %u at %#8.8x, " - "OR = %#8.8x.\n", lsock, io->map, w->br, w->or); + "OR = %#8.8x.\n", lsock, io->map, w->br, w->or); } else { /* shutdown IO window */ winnr = (PCMCIA_MEM_WIN_NO * PCMCIA_SOCKETS_NO) - + (lsock * PCMCIA_IO_WIN_NO) + io->map; + + (lsock * PCMCIA_IO_WIN_NO) + io->map; /* setup registers */ - w = (void *) &pcmcia->pcmc_pbr0; + w = (void *)&pcmcia->pcmc_pbr0; w += winnr; - out_be32(&w->or, 0); /* turn off window */ - out_be32(&w->br, 0); /* turn off base address */ + out_be32(&w->or, 0); /* turn off window */ + out_be32(&w->br, 0); /* turn off base address */ dprintk("Socket %u: Unmapped io window %u at %#8.8x, " "OR = %#8.8x.\n", lsock, io->map, w->br, w->or); @@ -1029,15 +1039,14 @@ static int m8xx_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) /* copy the struct and modify the copy */ s->io_win[io->map] = *io; - s->io_win[io->map].flags &= (MAP_WRPROT - | MAP_16BIT - | MAP_ACTIVE); + s->io_win[io->map].flags &= (MAP_WRPROT | MAP_16BIT | MAP_ACTIVE); dprintk("SetIOMap exit\n"); return 0; } -static int m8xx_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) +static int m8xx_set_mem_map(struct pcmcia_socket *sock, + struct pccard_mem_map *mem) { int lsock = container_of(sock, struct socket_info, socket)->slot; struct socket_info *s = &socket[lsock]; @@ -1046,19 +1055,19 @@ static int m8xx_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *m unsigned int reg, winnr; pcmconf8xx_t *pcmcia = s->pcmcia; - dprintk( "SetMemMap(%d, %d, %#2.2x, %d ns, " - "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags, - mem->speed, mem->static_start, mem->card_start); + dprintk("SetMemMap(%d, %d, %#2.2x, %d ns, " + "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags, + mem->speed, mem->static_start, mem->card_start); if ((mem->map >= PCMCIA_MEM_WIN_NO) -// || ((mem->s) >= PCMCIA_MEM_WIN_SIZE) +// || ((mem->s) >= PCMCIA_MEM_WIN_SIZE) || (mem->card_start >= 0x04000000) - || (mem->static_start & 0xfff) /* 4KByte resolution */ - || (mem->card_start & 0xfff)) + || (mem->static_start & 0xfff) /* 4KByte resolution */ + ||(mem->card_start & 0xfff)) return -EINVAL; - if((reg = m8xx_get_graycode(PCMCIA_MEM_WIN_SIZE)) == -1) { - printk( "Cannot set size to 0x%08x.\n", PCMCIA_MEM_WIN_SIZE); + if ((reg = m8xx_get_graycode(PCMCIA_MEM_WIN_SIZE)) == -1) { + printk("Cannot set size to 0x%08x.\n", PCMCIA_MEM_WIN_SIZE); return -EINVAL; } reg <<= 27; @@ -1067,50 +1076,47 @@ static int m8xx_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *m /* Setup the window in the pcmcia controller */ - w = (void *) &pcmcia->pcmc_pbr0; + w = (void *)&pcmcia->pcmc_pbr0; w += winnr; reg |= lsock << 2; reg |= m8xx_get_speed(mem->speed, 0, s->bus_freq); - if(mem->flags & MAP_ATTRIB) - reg |= M8XX_PCMCIA_POR_ATTRMEM; + if (mem->flags & MAP_ATTRIB) + reg |= M8XX_PCMCIA_POR_ATTRMEM; - if(mem->flags & MAP_WRPROT) + if (mem->flags & MAP_WRPROT) reg |= M8XX_PCMCIA_POR_WRPROT; - if(mem->flags & MAP_16BIT) + if (mem->flags & MAP_16BIT) reg |= M8XX_PCMCIA_POR_16BIT; - if(mem->flags & MAP_ACTIVE) + if (mem->flags & MAP_ACTIVE) reg |= M8XX_PCMCIA_POR_VALID; out_be32(&w->or, reg); dprintk("Socket %u: Mapped memory window %u at %#8.8x, " - "OR = %#8.8x.\n", lsock, mem->map, w->br, w->or); + "OR = %#8.8x.\n", lsock, mem->map, w->br, w->or); - if(mem->flags & MAP_ACTIVE) { + if (mem->flags & MAP_ACTIVE) { /* get the new base address */ mem->static_start = PCMCIA_MEM_WIN_BASE + - (PCMCIA_MEM_WIN_SIZE * winnr) - + mem->card_start; + (PCMCIA_MEM_WIN_SIZE * winnr) + + mem->card_start; } dprintk("SetMemMap(%d, %d, %#2.2x, %d ns, " - "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags, - mem->speed, mem->static_start, mem->card_start); + "%#5.5lx, %#5.5x)\n", lsock, mem->map, mem->flags, + mem->speed, mem->static_start, mem->card_start); /* copy the struct and modify the copy */ old = &s->mem_win[mem->map]; *old = *mem; - old->flags &= (MAP_ATTRIB - | MAP_WRPROT - | MAP_16BIT - | MAP_ACTIVE); + old->flags &= (MAP_ATTRIB | MAP_WRPROT | MAP_16BIT | MAP_ACTIVE); return 0; } @@ -1121,7 +1127,7 @@ static int m8xx_sock_init(struct pcmcia_socket *sock) pccard_io_map io = { 0, 0, 0, 0, 1 }; pccard_mem_map mem = { 0, 0, 0, 0, 0, 0 }; - dprintk( "sock_init(%d)\n", s); + dprintk("sock_init(%d)\n", s); m8xx_set_socket(sock, &dead_socket); for (i = 0; i < PCMCIA_IO_WIN_NO; i++) { @@ -1143,7 +1149,7 @@ static int m8xx_sock_suspend(struct pcmcia_socket *sock) } static struct pccard_operations m8xx_services = { - .init = m8xx_sock_init, + .init = m8xx_sock_init, .suspend = m8xx_sock_suspend, .get_status = m8xx_get_status, .set_socket = m8xx_set_socket, @@ -1151,7 +1157,8 @@ static struct pccard_operations m8xx_services = { .set_mem_map = m8xx_set_mem_map, }; -static int __init m8xx_probe(struct of_device *ofdev, const struct of_device_id *match) +static int __init m8xx_probe(struct of_device *ofdev, + const struct of_device_id *match) { struct pcmcia_win *w; unsigned int i, m, hwirq; @@ -1162,49 +1169,50 @@ static int __init m8xx_probe(struct of_device *ofdev, const struct of_device_id pcmcia_info("%s\n", version); pcmcia = of_iomap(np, 0); - if(pcmcia == NULL) + if (pcmcia == NULL) return -EINVAL; pcmcia_schlvl = irq_of_parse_and_map(np, 0); - hwirq = irq_map[pcmcia_schlvl].hwirq; + hwirq = irq_map[pcmcia_schlvl].hwirq; if (pcmcia_schlvl < 0) return -EINVAL; m8xx_pgcrx[0] = &pcmcia->pcmc_pgcra; m8xx_pgcrx[1] = &pcmcia->pcmc_pgcrb; - pcmcia_info(PCMCIA_BOARD_MSG " using " PCMCIA_SLOT_MSG " with IRQ %u (%d). \n", pcmcia_schlvl, hwirq); /* Configure Status change interrupt */ - if(request_irq(pcmcia_schlvl, m8xx_interrupt, IRQF_SHARED, - driver_name, socket)) { + if (request_irq(pcmcia_schlvl, m8xx_interrupt, IRQF_SHARED, + driver_name, socket)) { pcmcia_error("Cannot allocate IRQ %u for SCHLVL!\n", pcmcia_schlvl); return -1; } - w = (void *) &pcmcia->pcmc_pbr0; + w = (void *)&pcmcia->pcmc_pbr0; - out_be32(&pcmcia->pcmc_pscr, M8XX_PCMCIA_MASK(0)| M8XX_PCMCIA_MASK(1)); + out_be32(&pcmcia->pcmc_pscr, M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1)); clrbits32(&pcmcia->pcmc_per, M8XX_PCMCIA_MASK(0) | M8XX_PCMCIA_MASK(1)); /* connect interrupt and disable CxOE */ - out_be32(M8XX_PGCRX(0), M8XX_PGCRX_CXOE | (mk_int_int_mask(hwirq) << 16)); - out_be32(M8XX_PGCRX(1), M8XX_PGCRX_CXOE | (mk_int_int_mask(hwirq) << 16)); + out_be32(M8XX_PGCRX(0), + M8XX_PGCRX_CXOE | (mk_int_int_mask(hwirq) << 16)); + out_be32(M8XX_PGCRX(1), + M8XX_PGCRX_CXOE | (mk_int_int_mask(hwirq) << 16)); /* intialize the fixed memory windows */ - for(i = 0; i < PCMCIA_SOCKETS_NO; i++){ + for (i = 0; i < PCMCIA_SOCKETS_NO; i++) { for (m = 0; m < PCMCIA_MEM_WIN_NO; m++) { out_be32(&w->br, PCMCIA_MEM_WIN_BASE + - (PCMCIA_MEM_WIN_SIZE - * (m + i * PCMCIA_MEM_WIN_NO))); + (PCMCIA_MEM_WIN_SIZE + * (m + i * PCMCIA_MEM_WIN_NO))); - out_be32(&w->or, 0); /* set to not valid */ + out_be32(&w->or, 0); /* set to not valid */ w++; } @@ -1218,10 +1226,11 @@ static int __init m8xx_probe(struct of_device *ofdev, const struct of_device_id hardware_enable(0); hardware_enable(1); - for (i = 0 ; i < PCMCIA_SOCKETS_NO; i++) { + for (i = 0; i < PCMCIA_SOCKETS_NO; i++) { socket[i].slot = i; socket[i].socket.owner = THIS_MODULE; - socket[i].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN | SS_CAP_STATIC_MAP; + socket[i].socket.features = + SS_CAP_PCCARD | SS_CAP_MEM_ALIGN | SS_CAP_STATIC_MAP; socket[i].socket.irq_mask = 0x000; socket[i].socket.map_size = 0x1000; socket[i].socket.io_offset = 0; @@ -1234,7 +1243,6 @@ static int __init m8xx_probe(struct of_device *ofdev, const struct of_device_id socket[i].bus_freq = ppc_proc_freq; socket[i].hwirq = hwirq; - } for (i = 0; i < PCMCIA_SOCKETS_NO; i++) { @@ -1246,25 +1254,25 @@ static int __init m8xx_probe(struct of_device *ofdev, const struct of_device_id return 0; } -static int m8xx_remove(struct of_device* ofdev) +static int m8xx_remove(struct of_device *ofdev) { u32 m, i; struct pcmcia_win *w; pcmconf8xx_t *pcmcia = socket[0].pcmcia; for (i = 0; i < PCMCIA_SOCKETS_NO; i++) { - w = (void *) &pcmcia->pcmc_pbr0; + w = (void *)&pcmcia->pcmc_pbr0; out_be32(&pcmcia->pcmc_pscr, M8XX_PCMCIA_MASK(i)); out_be32(&pcmcia->pcmc_per, - in_be32(&pcmcia->pcmc_per) & ~M8XX_PCMCIA_MASK(i)); + in_be32(&pcmcia->pcmc_per) & ~M8XX_PCMCIA_MASK(i)); /* turn off interrupt and disable CxOE */ out_be32(M8XX_PGCRX(i), M8XX_PGCRX_CXOE); /* turn off memory windows */ for (m = 0; m < PCMCIA_MEM_WIN_NO; m++) { - out_be32(&w->or, 0); /* set to not valid */ + out_be32(&w->or, 0); /* set to not valid */ w++; } @@ -1299,21 +1307,21 @@ static int m8xx_resume(struct platform_device *pdev) static struct of_device_id m8xx_pcmcia_match[] = { { - .type = "pcmcia", - .compatible = "fsl,pq-pcmcia", - }, + .type = "pcmcia", + .compatible = "fsl,pq-pcmcia", + }, {}, }; MODULE_DEVICE_TABLE(of, m8xx_pcmcia_match); static struct of_platform_driver m8xx_pcmcia_driver = { - .name = (char *) driver_name, - .match_table = m8xx_pcmcia_match, - .probe = m8xx_probe, - .remove = m8xx_remove, - .suspend = m8xx_suspend, - .resume = m8xx_resume, + .name = (char *)driver_name, + .match_table = m8xx_pcmcia_match, + .probe = m8xx_probe, + .remove = m8xx_remove, + .suspend = m8xx_suspend, + .resume = m8xx_resume, }; static int __init m8xx_init(void) diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c index 3e20b1cc7778..8e7b2dd38810 100644 --- a/drivers/pnp/core.c +++ b/drivers/pnp/core.c @@ -35,12 +35,11 @@ void *pnp_alloc(long size) { void *result; - result = kmalloc(size, GFP_KERNEL); + result = kzalloc(size, GFP_KERNEL); if (!result){ printk(KERN_ERR "pnp: Out of Memory\n"); return NULL; } - memset(result, 0, size); return result; } diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c index 3a201b77b963..ed112ee16012 100644 --- a/drivers/pnp/pnpbios/core.c +++ b/drivers/pnp/pnpbios/core.c @@ -147,7 +147,7 @@ static int pnp_dock_event(int dock, struct pnp_docking_station_info *info) info->location_id, info->serial, info->capabilities); envp[i] = NULL; - value = call_usermodehelper (argv [0], argv, envp, 0); + value = call_usermodehelper (argv [0], argv, envp, UMH_WAIT_EXEC); kfree (buf); kfree (envp); return 0; @@ -160,6 +160,7 @@ static int pnp_dock_thread(void * unused) { static struct pnp_docking_station_info now; int docked = -1, d = 0; + set_freezable(); while (!unloading) { int status; diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c index f935c1f71a58..44420723a359 100644 --- a/drivers/rapidio/rio-scan.c +++ b/drivers/rapidio/rio-scan.c @@ -297,11 +297,10 @@ static struct rio_dev *rio_setup_device(struct rio_net *net, struct rio_switch *rswitch; int result, rdid; - rdev = kmalloc(sizeof(struct rio_dev), GFP_KERNEL); + rdev = kzalloc(sizeof(struct rio_dev), GFP_KERNEL); if (!rdev) goto out; - memset(rdev, 0, sizeof(struct rio_dev)); rdev->net = net; rio_mport_read_config_32(port, destid, hopcount, RIO_DEV_ID_CAR, &result); @@ -801,9 +800,8 @@ static struct rio_net __devinit *rio_alloc_net(struct rio_mport *port) { struct rio_net *net; - net = kmalloc(sizeof(struct rio_net), GFP_KERNEL); + net = kzalloc(sizeof(struct rio_net), GFP_KERNEL); if (net) { - memset(net, 0, sizeof(struct rio_net)); INIT_LIST_HEAD(&net->node); INIT_LIST_HEAD(&net->devices); INIT_LIST_HEAD(&net->mports); diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 83b071b6ece4..cea401feb0f3 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -10,7 +10,6 @@ config RTC_LIB config RTC_CLASS tristate "RTC class" - depends on EXPERIMENTAL default n select RTC_LIB help @@ -119,7 +118,7 @@ config RTC_DRV_TEST will be called rtc-test. comment "I2C RTC drivers" - depends on RTC_CLASS + depends on RTC_CLASS && I2C config RTC_DRV_DS1307 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00" @@ -160,11 +159,11 @@ config RTC_DRV_MAX6900 will be called rtc-max6900. config RTC_DRV_RS5C372 - tristate "Ricoh RS5C372A/B" + tristate "Ricoh RS5C372A/B, RV5C386, RV5C387A" depends on RTC_CLASS && I2C help If you say yes here you get support for the - Ricoh RS5C372A and RS5C372B RTC chips. + Ricoh RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips. This driver can also be built as a module. If so, the module will be called rtc-rs5c372. @@ -213,12 +212,40 @@ config RTC_DRV_PCF8583 This driver can also be built as a module. If so, the module will be called rtc-pcf8583. +config RTC_DRV_M41T80 + tristate "ST M41T80 series RTC" + depends on RTC_CLASS && I2C + help + If you say Y here you will get support for the + ST M41T80 RTC chips series. Currently following chips are + supported: M41T80, M41T81, M41T82, M41T83, M41ST84, M41ST85 + and M41ST87. + + This driver can also be built as a module. If so, the module + will be called rtc-m41t80. + +config RTC_DRV_M41T80_WDT + bool "ST M41T80 series RTC watchdog timer" + depends on RTC_DRV_M41T80 + help + If you say Y here you will get support for the + watchdog timer in ST M41T80 RTC chips series. + +config RTC_DRV_TWL92330 + boolean "TI TWL92330/Menelaus" + depends on RTC_CLASS && I2C && MENELAUS + help + If you say yes here you get support for the RTC on the + TWL92330 "Menelaus" power mangement chip, used with OMAP2 + platforms. The support is integrated with the rest of + the Menelaus driver; it's not separate module. + comment "SPI RTC drivers" - depends on RTC_CLASS + depends on RTC_CLASS && SPI_MASTER config RTC_DRV_RS5C348 tristate "Ricoh RS5C348A/B" - depends on RTC_CLASS && SPI + depends on RTC_CLASS && SPI_MASTER help If you say yes here you get support for the Ricoh RS5C348A and RS5C348B RTC chips. @@ -228,7 +255,7 @@ config RTC_DRV_RS5C348 config RTC_DRV_MAX6902 tristate "Maxim 6902" - depends on RTC_CLASS && SPI + depends on RTC_CLASS && SPI_MASTER help If you say yes here you will get support for the Maxim MAX6902 SPI RTC chip. @@ -262,6 +289,12 @@ config RTC_DRV_CMOS This driver can also be built as a module. If so, the module will be called rtc-cmos. +config RTC_DRV_DS1216 + tristate "Dallas DS1216" + depends on RTC_CLASS && SNI_RM + help + If you say yes here you get support for the Dallas DS1216 RTC chips. + config RTC_DRV_DS1553 tristate "Dallas DS1553" depends on RTC_CLASS @@ -292,6 +325,16 @@ config RTC_DRV_M48T86 This driver can also be built as a module. If so, the module will be called rtc-m48t86. +config RTC_DRV_M48T59 + tristate "ST M48T59" + depends on RTC_CLASS + help + If you say Y here you will get support for the + ST M48T59 RTC chip. + + This driver can also be built as a module, if so, the module + will be called "rtc-m48t59". + config RTC_DRV_V3020 tristate "EM Microelectronic V3020" depends on RTC_CLASS @@ -379,6 +422,13 @@ config RTC_DRV_PL031 To compile this driver as a module, choose M here: the module will be called rtc-pl031. +config RTC_DRV_AT32AP700X + tristate "AT32AP700X series RTC" + depends on RTC_CLASS && PLATFORM_AT32AP + help + Driver for the internal RTC (Realtime Clock) on Atmel AVR32 + AT32AP700x family processors. + config RTC_DRV_AT91RM9200 tristate "AT91RM9200" depends on RTC_CLASS && ARCH_AT91RM9200 diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index a1afbc236073..3109af9a1651 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o +obj-$(CONFIG_RTC_DRV_AT32AP700X) += rtc-at32ap700x.o obj-$(CONFIG_RTC_DRV_DS1307) += rtc-ds1307.o obj-$(CONFIG_RTC_DRV_DS1672) += rtc-ds1672.o obj-$(CONFIG_RTC_DRV_DS1742) += rtc-ds1742.o @@ -28,6 +29,7 @@ obj-$(CONFIG_RTC_DRV_PCF8583) += rtc-pcf8583.o obj-$(CONFIG_RTC_DRV_RS5C372) += rtc-rs5c372.o obj-$(CONFIG_RTC_DRV_S3C) += rtc-s3c.o obj-$(CONFIG_RTC_DRV_RS5C348) += rtc-rs5c348.o +obj-$(CONFIG_RTC_DRV_M41T80) += rtc-m41t80.o obj-$(CONFIG_RTC_DRV_M48T86) += rtc-m48t86.o obj-$(CONFIG_RTC_DRV_DS1553) += rtc-ds1553.o obj-$(CONFIG_RTC_DRV_RS5C313) += rtc-rs5c313.o @@ -41,3 +43,5 @@ obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o obj-$(CONFIG_RTC_DRV_AT91RM9200)+= rtc-at91rm9200.o obj-$(CONFIG_RTC_DRV_SH) += rtc-sh.o obj-$(CONFIG_RTC_DRV_BFIN) += rtc-bfin.o +obj-$(CONFIG_RTC_DRV_M48T59) += rtc-m48t59.o +obj-$(CONFIG_RTC_DRV_DS1216) += rtc-ds1216.o diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c new file mode 100644 index 000000000000..2999214ca534 --- /dev/null +++ b/drivers/rtc/rtc-at32ap700x.c @@ -0,0 +1,317 @@ +/* + * An RTC driver for the AVR32 AT32AP700x processor series. + * + * Copyright (C) 2007 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/rtc.h> +#include <linux/io.h> + +/* + * This is a bare-bones RTC. It runs during most system sleep states, but has + * no battery backup and gets reset during system restart. It must be + * initialized from an external clock (network, I2C, etc) before it can be of + * much use. + * + * The alarm functionality is limited by the hardware, not supporting + * periodic interrupts. + */ + +#define RTC_CTRL 0x00 +#define RTC_CTRL_EN 0 +#define RTC_CTRL_PCLR 1 +#define RTC_CTRL_TOPEN 2 +#define RTC_CTRL_PSEL 8 + +#define RTC_VAL 0x04 + +#define RTC_TOP 0x08 + +#define RTC_IER 0x10 +#define RTC_IER_TOPI 0 + +#define RTC_IDR 0x14 +#define RTC_IDR_TOPI 0 + +#define RTC_IMR 0x18 +#define RTC_IMR_TOPI 0 + +#define RTC_ISR 0x1c +#define RTC_ISR_TOPI 0 + +#define RTC_ICR 0x20 +#define RTC_ICR_TOPI 0 + +#define RTC_BIT(name) (1 << RTC_##name) +#define RTC_BF(name, value) ((value) << RTC_##name) + +#define rtc_readl(dev, reg) \ + __raw_readl((dev)->regs + RTC_##reg) +#define rtc_writel(dev, reg, value) \ + __raw_writel((value), (dev)->regs + RTC_##reg) + +struct rtc_at32ap700x { + struct rtc_device *rtc; + void __iomem *regs; + unsigned long alarm_time; + unsigned long irq; + /* Protect against concurrent register access. */ + spinlock_t lock; +}; + +static int at32_rtc_readtime(struct device *dev, struct rtc_time *tm) +{ + struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); + unsigned long now; + + now = rtc_readl(rtc, VAL); + rtc_time_to_tm(now, tm); + + return 0; +} + +static int at32_rtc_settime(struct device *dev, struct rtc_time *tm) +{ + struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); + unsigned long now; + int ret; + + ret = rtc_tm_to_time(tm, &now); + if (ret == 0) + rtc_writel(rtc, VAL, now); + + return ret; +} + +static int at32_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); + + rtc_time_to_tm(rtc->alarm_time, &alrm->time); + alrm->pending = rtc_readl(rtc, IMR) & RTC_BIT(IMR_TOPI) ? 1 : 0; + + return 0; +} + +static int at32_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); + unsigned long rtc_unix_time; + unsigned long alarm_unix_time; + int ret; + + rtc_unix_time = rtc_readl(rtc, VAL); + + ret = rtc_tm_to_time(&alrm->time, &alarm_unix_time); + if (ret) + return ret; + + if (alarm_unix_time < rtc_unix_time) + return -EINVAL; + + spin_lock_irq(&rtc->lock); + rtc->alarm_time = alarm_unix_time; + rtc_writel(rtc, TOP, rtc->alarm_time); + if (alrm->pending) + rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) + | RTC_BIT(CTRL_TOPEN)); + else + rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) + & ~RTC_BIT(CTRL_TOPEN)); + spin_unlock_irq(&rtc->lock); + + return ret; +} + +static int at32_rtc_ioctl(struct device *dev, unsigned int cmd, + unsigned long arg) +{ + struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); + int ret = 0; + + spin_lock_irq(&rtc->lock); + + switch (cmd) { + case RTC_AIE_ON: + if (rtc_readl(rtc, VAL) > rtc->alarm_time) { + ret = -EINVAL; + break; + } + rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) + | RTC_BIT(CTRL_TOPEN)); + rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); + rtc_writel(rtc, IER, RTC_BIT(IER_TOPI)); + break; + case RTC_AIE_OFF: + rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) + & ~RTC_BIT(CTRL_TOPEN)); + rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); + rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); + break; + default: + ret = -ENOIOCTLCMD; + break; + } + + spin_unlock_irq(&rtc->lock); + + return ret; +} + +static irqreturn_t at32_rtc_interrupt(int irq, void *dev_id) +{ + struct rtc_at32ap700x *rtc = (struct rtc_at32ap700x *)dev_id; + unsigned long isr = rtc_readl(rtc, ISR); + unsigned long events = 0; + int ret = IRQ_NONE; + + spin_lock(&rtc->lock); + + if (isr & RTC_BIT(ISR_TOPI)) { + rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); + rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); + rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) + & ~RTC_BIT(CTRL_TOPEN)); + rtc_writel(rtc, VAL, rtc->alarm_time); + events = RTC_AF | RTC_IRQF; + rtc_update_irq(rtc->rtc, 1, events); + ret = IRQ_HANDLED; + } + + spin_unlock(&rtc->lock); + + return ret; +} + +static struct rtc_class_ops at32_rtc_ops = { + .ioctl = at32_rtc_ioctl, + .read_time = at32_rtc_readtime, + .set_time = at32_rtc_settime, + .read_alarm = at32_rtc_readalarm, + .set_alarm = at32_rtc_setalarm, +}; + +static int __init at32_rtc_probe(struct platform_device *pdev) +{ + struct resource *regs; + struct rtc_at32ap700x *rtc; + int irq = -1; + int ret; + + rtc = kzalloc(sizeof(struct rtc_at32ap700x), GFP_KERNEL); + if (!rtc) { + dev_dbg(&pdev->dev, "out of memory\n"); + return -ENOMEM; + } + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!regs) { + dev_dbg(&pdev->dev, "no mmio resource defined\n"); + ret = -ENXIO; + goto out; + } + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_dbg(&pdev->dev, "could not get irq\n"); + ret = -ENXIO; + goto out; + } + + ret = request_irq(irq, at32_rtc_interrupt, IRQF_SHARED, "rtc", rtc); + if (ret) { + dev_dbg(&pdev->dev, "could not request irq %d\n", irq); + goto out; + } + + rtc->irq = irq; + rtc->regs = ioremap(regs->start, regs->end - regs->start + 1); + if (!rtc->regs) { + ret = -ENOMEM; + dev_dbg(&pdev->dev, "could not map I/O memory\n"); + goto out_free_irq; + } + spin_lock_init(&rtc->lock); + + /* + * Maybe init RTC: count from zero at 1 Hz, disable wrap irq. + * + * Do not reset VAL register, as it can hold an old time + * from last JTAG reset. + */ + if (!(rtc_readl(rtc, CTRL) & RTC_BIT(CTRL_EN))) { + rtc_writel(rtc, CTRL, RTC_BIT(CTRL_PCLR)); + rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); + rtc_writel(rtc, CTRL, RTC_BF(CTRL_PSEL, 0xe) + | RTC_BIT(CTRL_EN)); + } + + rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, + &at32_rtc_ops, THIS_MODULE); + if (IS_ERR(rtc->rtc)) { + dev_dbg(&pdev->dev, "could not register rtc device\n"); + ret = PTR_ERR(rtc->rtc); + goto out_iounmap; + } + + platform_set_drvdata(pdev, rtc); + + dev_info(&pdev->dev, "Atmel RTC for AT32AP700x at %08lx irq %ld\n", + (unsigned long)rtc->regs, rtc->irq); + + return 0; + +out_iounmap: + iounmap(rtc->regs); +out_free_irq: + free_irq(irq, rtc); +out: + kfree(rtc); + return ret; +} + +static int __exit at32_rtc_remove(struct platform_device *pdev) +{ + struct rtc_at32ap700x *rtc = platform_get_drvdata(pdev); + + free_irq(rtc->irq, rtc); + iounmap(rtc->regs); + rtc_device_unregister(rtc->rtc); + kfree(rtc); + platform_set_drvdata(pdev, NULL); + + return 0; +} + +MODULE_ALIAS("at32ap700x_rtc"); + +static struct platform_driver at32_rtc_driver = { + .remove = __exit_p(at32_rtc_remove), + .driver = { + .name = "at32ap700x_rtc", + .owner = THIS_MODULE, + }, +}; + +static int __init at32_rtc_init(void) +{ + return platform_driver_probe(&at32_rtc_driver, at32_rtc_probe); +} +module_init(at32_rtc_init); + +static void __exit at32_rtc_exit(void) +{ + platform_driver_unregister(&at32_rtc_driver); +} +module_exit(at32_rtc_exit); + +MODULE_AUTHOR("Hans-Christian Egtvedt <hcegtvedt@atmel.com>"); +MODULE_DESCRIPTION("Real time clock for AVR32 AT32AP700x"); +MODULE_LICENSE("GPL"); diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index e24ea82dc35b..5d760bb6c2cd 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -235,7 +235,7 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } -static int cmos_set_freq(struct device *dev, int freq) +static int cmos_irq_set_freq(struct device *dev, int freq) { struct cmos_rtc *cmos = dev_get_drvdata(dev); int f; @@ -259,6 +259,34 @@ static int cmos_set_freq(struct device *dev, int freq) return 0; } +static int cmos_irq_set_state(struct device *dev, int enabled) +{ + struct cmos_rtc *cmos = dev_get_drvdata(dev); + unsigned char rtc_control, rtc_intr; + unsigned long flags; + + if (!is_valid_irq(cmos->irq)) + return -ENXIO; + + spin_lock_irqsave(&rtc_lock, flags); + rtc_control = CMOS_READ(RTC_CONTROL); + + if (enabled) + rtc_control |= RTC_PIE; + else + rtc_control &= ~RTC_PIE; + + CMOS_WRITE(rtc_control, RTC_CONTROL); + + rtc_intr = CMOS_READ(RTC_INTR_FLAGS); + rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; + if (is_intr(rtc_intr)) + rtc_update_irq(cmos->rtc, 1, rtc_intr); + + spin_unlock_irqrestore(&rtc_lock, flags); + return 0; +} + #if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) static int @@ -360,7 +388,8 @@ static const struct rtc_class_ops cmos_rtc_ops = { .read_alarm = cmos_read_alarm, .set_alarm = cmos_set_alarm, .proc = cmos_procfs, - .irq_set_freq = cmos_set_freq, + .irq_set_freq = cmos_irq_set_freq, + .irq_set_state = cmos_irq_set_state, }; /*----------------------------------------------------------------*/ diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c index f4e5f0040ff7..304535942de2 100644 --- a/drivers/rtc/rtc-dev.c +++ b/drivers/rtc/rtc-dev.c @@ -341,6 +341,8 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, case RTC_IRQP_READ: if (ops->irq_set_freq) err = put_user(rtc->irq_freq, (unsigned long __user *)uarg); + else + err = -ENOTTY; break; case RTC_IRQP_SET: diff --git a/drivers/rtc/rtc-ds1216.c b/drivers/rtc/rtc-ds1216.c new file mode 100644 index 000000000000..83efb88f8f23 --- /dev/null +++ b/drivers/rtc/rtc-ds1216.c @@ -0,0 +1,226 @@ +/* + * Dallas DS1216 RTC driver + * + * Copyright (c) 2007 Thomas Bogendoerfer + * + */ + +#include <linux/module.h> +#include <linux/rtc.h> +#include <linux/platform_device.h> +#include <linux/bcd.h> + +#define DRV_VERSION "0.1" + +struct ds1216_regs { + u8 tsec; + u8 sec; + u8 min; + u8 hour; + u8 wday; + u8 mday; + u8 month; + u8 year; +}; + +#define DS1216_HOUR_1224 (1 << 7) +#define DS1216_HOUR_AMPM (1 << 5) + +struct ds1216_priv { + struct rtc_device *rtc; + void __iomem *ioaddr; + size_t size; + unsigned long baseaddr; +}; + +static const u8 magic[] = { + 0xc5, 0x3a, 0xa3, 0x5c, 0xc5, 0x3a, 0xa3, 0x5c +}; + +/* + * Read the 64 bit we'd like to have - It a series + * of 64 bits showing up in the LSB of the base register. + * + */ +static void ds1216_read(u8 __iomem *ioaddr, u8 *buf) +{ + unsigned char c; + int i, j; + + for (i = 0; i < 8; i++) { + c = 0; + for (j = 0; j < 8; j++) + c |= (readb(ioaddr) & 0x1) << j; + buf[i] = c; + } +} + +static void ds1216_write(u8 __iomem *ioaddr, const u8 *buf) +{ + unsigned char c; + int i, j; + + for (i = 0; i < 8; i++) { + c = buf[i]; + for (j = 0; j < 8; j++) { + writeb(c, ioaddr); + c = c >> 1; + } + } +} + +static void ds1216_switch_ds_to_clock(u8 __iomem *ioaddr) +{ + /* Reset magic pointer */ + readb(ioaddr); + /* Write 64 bit magic to DS1216 */ + ds1216_write(ioaddr, magic); +} + +static int ds1216_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct ds1216_priv *priv = platform_get_drvdata(pdev); + struct ds1216_regs regs; + + ds1216_switch_ds_to_clock(priv->ioaddr); + ds1216_read(priv->ioaddr, (u8 *)®s); + + tm->tm_sec = BCD2BIN(regs.sec); + tm->tm_min = BCD2BIN(regs.min); + if (regs.hour & DS1216_HOUR_1224) { + /* AM/PM mode */ + tm->tm_hour = BCD2BIN(regs.hour & 0x1f); + if (regs.hour & DS1216_HOUR_AMPM) + tm->tm_hour += 12; + } else + tm->tm_hour = BCD2BIN(regs.hour & 0x3f); + tm->tm_wday = (regs.wday & 7) - 1; + tm->tm_mday = BCD2BIN(regs.mday & 0x3f); + tm->tm_mon = BCD2BIN(regs.month & 0x1f); + tm->tm_year = BCD2BIN(regs.year); + if (tm->tm_year < 70) + tm->tm_year += 100; + return 0; +} + +static int ds1216_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct ds1216_priv *priv = platform_get_drvdata(pdev); + struct ds1216_regs regs; + + ds1216_switch_ds_to_clock(priv->ioaddr); + ds1216_read(priv->ioaddr, (u8 *)®s); + + regs.tsec = 0; /* clear 0.1 and 0.01 seconds */ + regs.sec = BIN2BCD(tm->tm_sec); + regs.min = BIN2BCD(tm->tm_min); + regs.hour &= DS1216_HOUR_1224; + if (regs.hour && tm->tm_hour > 12) { + regs.hour |= DS1216_HOUR_AMPM; + tm->tm_hour -= 12; + } + regs.hour |= BIN2BCD(tm->tm_hour); + regs.wday &= ~7; + regs.wday |= tm->tm_wday; + regs.mday = BIN2BCD(tm->tm_mday); + regs.month = BIN2BCD(tm->tm_mon); + regs.year = BIN2BCD(tm->tm_year % 100); + + ds1216_switch_ds_to_clock(priv->ioaddr); + ds1216_write(priv->ioaddr, (u8 *)®s); + return 0; +} + +static const struct rtc_class_ops ds1216_rtc_ops = { + .read_time = ds1216_rtc_read_time, + .set_time = ds1216_rtc_set_time, +}; + +static int __devinit ds1216_rtc_probe(struct platform_device *pdev) +{ + struct rtc_device *rtc; + struct resource *res; + struct ds1216_priv *priv; + int ret = 0; + u8 dummy[8]; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; + priv = kzalloc(sizeof *priv, GFP_KERNEL); + if (!priv) + return -ENOMEM; + priv->size = res->end - res->start + 1; + if (!request_mem_region(res->start, priv->size, pdev->name)) { + ret = -EBUSY; + goto out; + } + priv->baseaddr = res->start; + priv->ioaddr = ioremap(priv->baseaddr, priv->size); + if (!priv->ioaddr) { + ret = -ENOMEM; + goto out; + } + rtc = rtc_device_register("ds1216", &pdev->dev, + &ds1216_rtc_ops, THIS_MODULE); + if (IS_ERR(rtc)) { + ret = PTR_ERR(rtc); + goto out; + } + priv->rtc = rtc; + platform_set_drvdata(pdev, priv); + + /* dummy read to get clock into a known state */ + ds1216_read(priv->ioaddr, dummy); + return 0; + +out: + if (priv->rtc) + rtc_device_unregister(priv->rtc); + if (priv->ioaddr) + iounmap(priv->ioaddr); + if (priv->baseaddr) + release_mem_region(priv->baseaddr, priv->size); + kfree(priv); + return ret; +} + +static int __devexit ds1216_rtc_remove(struct platform_device *pdev) +{ + struct ds1216_priv *priv = platform_get_drvdata(pdev); + + rtc_device_unregister(priv->rtc); + iounmap(priv->ioaddr); + release_mem_region(priv->baseaddr, priv->size); + kfree(priv); + return 0; +} + +static struct platform_driver ds1216_rtc_platform_driver = { + .driver = { + .name = "rtc-ds1216", + .owner = THIS_MODULE, + }, + .probe = ds1216_rtc_probe, + .remove = __devexit_p(ds1216_rtc_remove), +}; + +static int __init ds1216_rtc_init(void) +{ + return platform_driver_register(&ds1216_rtc_platform_driver); +} + +static void __exit ds1216_rtc_exit(void) +{ + platform_driver_unregister(&ds1216_rtc_platform_driver); +} + +MODULE_AUTHOR("Thomas Bogendoerfer <tsbogend@alpha.franken.de>"); +MODULE_DESCRIPTION("DS1216 RTC driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +module_init(ds1216_rtc_init); +module_exit(ds1216_rtc_exit); diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 3f0f7b8fa813..5158a625671f 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -24,29 +24,29 @@ * setting the date and time), Linux can ignore the non-clock features. * That's a natural job for a factory or repair bench. * - * If the I2C "force" mechanism is used, we assume the chip is a ds1337. - * (Much better would be board-specific tables of I2C devices, along with - * the platform_data drivers would use to sort such issues out.) + * This is currently a simple no-alarms driver. If your board has the + * alarm irq wired up on a ds1337 or ds1339, and you want to use that, + * then look at the rtc-rs5c372 driver for code to steal... */ enum ds_type { - unknown = 0, - ds_1307, /* or ds1338, ... */ - ds_1337, /* or ds1339, ... */ - ds_1340, /* or st m41t00, ... */ + ds_1307, + ds_1337, + ds_1338, + ds_1339, + ds_1340, + m41t00, // rs5c372 too? different address... }; -static unsigned short normal_i2c[] = { 0x68, I2C_CLIENT_END }; - -I2C_CLIENT_INSMOD; - - /* RTC registers don't differ much, except for the century flag */ #define DS1307_REG_SECS 0x00 /* 00-59 */ # define DS1307_BIT_CH 0x80 +# define DS1340_BIT_nEOSC 0x80 #define DS1307_REG_MIN 0x01 /* 00-59 */ #define DS1307_REG_HOUR 0x02 /* 00-23, or 1-12{am,pm} */ +# define DS1307_BIT_12HR 0x40 /* in REG_HOUR */ +# define DS1307_BIT_PM 0x20 /* in REG_HOUR */ # define DS1340_BIT_CENTURY_EN 0x80 /* in REG_HOUR */ # define DS1340_BIT_CENTURY 0x40 /* in REG_HOUR */ #define DS1307_REG_WDAY 0x03 /* 01-07 */ @@ -56,11 +56,12 @@ I2C_CLIENT_INSMOD; #define DS1307_REG_YEAR 0x06 /* 00-99 */ /* Other registers (control, status, alarms, trickle charge, NVRAM, etc) - * start at 7, and they differ a lot. Only control and status matter for RTC; - * be careful using them. + * start at 7, and they differ a LOT. Only control and status matter for + * basic RTC date and time functionality; be careful using them. */ -#define DS1307_REG_CONTROL 0x07 +#define DS1307_REG_CONTROL 0x07 /* or ds1338 */ # define DS1307_BIT_OUT 0x80 +# define DS1338_BIT_OSF 0x20 # define DS1307_BIT_SQWE 0x10 # define DS1307_BIT_RS1 0x02 # define DS1307_BIT_RS0 0x01 @@ -71,6 +72,13 @@ I2C_CLIENT_INSMOD; # define DS1337_BIT_INTCN 0x04 # define DS1337_BIT_A2IE 0x02 # define DS1337_BIT_A1IE 0x01 +#define DS1340_REG_CONTROL 0x07 +# define DS1340_BIT_OUT 0x80 +# define DS1340_BIT_FT 0x40 +# define DS1340_BIT_CALIB_SIGN 0x20 +# define DS1340_M_CALIBRATION 0x1f +#define DS1340_REG_FLAG 0x09 +# define DS1340_BIT_OSF 0x80 #define DS1337_REG_STATUS 0x0f # define DS1337_BIT_OSF 0x80 # define DS1337_BIT_A2I 0x02 @@ -84,21 +92,63 @@ struct ds1307 { u8 regs[8]; enum ds_type type; struct i2c_msg msg[2]; - struct i2c_client client; + struct i2c_client *client; + struct i2c_client dev; struct rtc_device *rtc; }; +struct chip_desc { + char name[9]; + unsigned nvram56:1; + unsigned alarm:1; + enum ds_type type; +}; + +static const struct chip_desc chips[] = { { + .name = "ds1307", + .type = ds_1307, + .nvram56 = 1, +}, { + .name = "ds1337", + .type = ds_1337, + .alarm = 1, +}, { + .name = "ds1338", + .type = ds_1338, + .nvram56 = 1, +}, { + .name = "ds1339", + .type = ds_1339, + .alarm = 1, +}, { + .name = "ds1340", + .type = ds_1340, +}, { + .name = "m41t00", + .type = m41t00, +}, }; + +static inline const struct chip_desc *find_chip(const char *s) +{ + unsigned i; + + for (i = 0; i < ARRAY_SIZE(chips); i++) + if (strnicmp(s, chips[i].name, sizeof chips[i].name) == 0) + return &chips[i]; + return NULL; +} static int ds1307_get_time(struct device *dev, struct rtc_time *t) { struct ds1307 *ds1307 = dev_get_drvdata(dev); int tmp; - /* read the RTC registers all at once */ + /* read the RTC date and time registers all at once */ ds1307->msg[1].flags = I2C_M_RD; ds1307->msg[1].len = 7; - tmp = i2c_transfer(ds1307->client.adapter, ds1307->msg, 2); + tmp = i2c_transfer(to_i2c_adapter(ds1307->client->dev.parent), + ds1307->msg, 2); if (tmp != 2) { dev_err(dev, "%s error %d\n", "read", tmp); return -EIO; @@ -129,7 +179,8 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t) t->tm_hour, t->tm_mday, t->tm_mon, t->tm_year, t->tm_wday); - return 0; + /* initial clock setting can be undefined */ + return rtc_valid_tm(t); } static int ds1307_set_time(struct device *dev, struct rtc_time *t) @@ -157,11 +208,18 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t) tmp = t->tm_year - 100; buf[DS1307_REG_YEAR] = BIN2BCD(tmp); - if (ds1307->type == ds_1337) + switch (ds1307->type) { + case ds_1337: + case ds_1339: buf[DS1307_REG_MONTH] |= DS1337_BIT_CENTURY; - else if (ds1307->type == ds_1340) + break; + case ds_1340: buf[DS1307_REG_HOUR] |= DS1340_BIT_CENTURY_EN | DS1340_BIT_CENTURY; + break; + default: + break; + } ds1307->msg[1].flags = 0; ds1307->msg[1].len = 8; @@ -170,7 +228,8 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t) "write", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); - result = i2c_transfer(ds1307->client.adapter, &ds1307->msg[1], 1); + result = i2c_transfer(to_i2c_adapter(ds1307->client->dev.parent), + &ds1307->msg[1], 1); if (result != 1) { dev_err(dev, "%s error %d\n", "write", tmp); return -EIO; @@ -185,25 +244,29 @@ static const struct rtc_class_ops ds13xx_rtc_ops = { static struct i2c_driver ds1307_driver; -static int __devinit -ds1307_detect(struct i2c_adapter *adapter, int address, int kind) +static int __devinit ds1307_probe(struct i2c_client *client) { struct ds1307 *ds1307; int err = -ENODEV; - struct i2c_client *client; int tmp; - - if (!(ds1307 = kzalloc(sizeof(struct ds1307), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; + const struct chip_desc *chip; + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + + chip = find_chip(client->name); + if (!chip) { + dev_err(&client->dev, "unknown chip type '%s'\n", + client->name); + return -ENODEV; } - client = &ds1307->client; - client->addr = address; - client->adapter = adapter; - client->driver = &ds1307_driver; - client->flags = 0; + if (!i2c_check_functionality(adapter, + I2C_FUNC_I2C | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) + return -EIO; + + if (!(ds1307 = kzalloc(sizeof(struct ds1307), GFP_KERNEL))) + return -ENOMEM; + ds1307->client = client; i2c_set_clientdata(client, ds1307); ds1307->msg[0].addr = client->addr; @@ -216,14 +279,16 @@ ds1307_detect(struct i2c_adapter *adapter, int address, int kind) ds1307->msg[1].len = sizeof(ds1307->regs); ds1307->msg[1].buf = ds1307->regs; - /* HACK: "force" implies "needs ds1337-style-oscillator setup" */ - if (kind >= 0) { - ds1307->type = ds_1337; + ds1307->type = chip->type; + switch (ds1307->type) { + case ds_1337: + case ds_1339: ds1307->reg_addr = DS1337_REG_CONTROL; ds1307->msg[1].len = 2; - tmp = i2c_transfer(client->adapter, ds1307->msg, 2); + /* get registers that the "rtc" read below won't read... */ + tmp = i2c_transfer(adapter, ds1307->msg, 2); if (tmp != 2) { pr_debug("read error %d\n", tmp); err = -EIO; @@ -233,19 +298,26 @@ ds1307_detect(struct i2c_adapter *adapter, int address, int kind) ds1307->reg_addr = 0; ds1307->msg[1].len = sizeof(ds1307->regs); - /* oscillator is off; need to turn it on */ - if ((ds1307->regs[0] & DS1337_BIT_nEOSC) - || (ds1307->regs[1] & DS1337_BIT_OSF)) { - printk(KERN_ERR "no ds1337 oscillator code\n"); - goto exit_free; + /* oscillator off? turn it on, so clock can tick. */ + if (ds1307->regs[0] & DS1337_BIT_nEOSC) + i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, + ds1307->regs[0] & ~DS1337_BIT_nEOSC); + + /* oscillator fault? clear flag, and warn */ + if (ds1307->regs[1] & DS1337_BIT_OSF) { + i2c_smbus_write_byte_data(client, DS1337_REG_STATUS, + ds1307->regs[1] & ~DS1337_BIT_OSF); + dev_warn(&client->dev, "SET TIME!\n"); } - } else - ds1307->type = ds_1307; + break; + default: + break; + } read_rtc: /* read RTC registers */ - tmp = i2c_transfer(client->adapter, ds1307->msg, 2); + tmp = i2c_transfer(adapter, ds1307->msg, 2); if (tmp != 2) { pr_debug("read error %d\n", tmp); err = -EIO; @@ -257,72 +329,80 @@ read_rtc: * still a few values that are clearly out-of-range. */ tmp = ds1307->regs[DS1307_REG_SECS]; - if (tmp & DS1307_BIT_CH) { - if (ds1307->type && ds1307->type != ds_1307) { - pr_debug("not a ds1307?\n"); - goto exit_free; - } - ds1307->type = ds_1307; - - /* this partial initialization should work for ds1307, - * ds1338, ds1340, st m41t00, and more. + switch (ds1307->type) { + case ds_1340: + /* FIXME read register with DS1340_BIT_OSF, use that to + * trigger the "set time" warning (*after* restarting the + * oscillator!) instead of this weaker ds1307/m41t00 test. */ - dev_warn(&client->dev, "oscillator started; SET TIME!\n"); - i2c_smbus_write_byte_data(client, 0, 0); - goto read_rtc; + case ds_1307: + case m41t00: + /* clock halted? turn it on, so clock can tick. */ + if (tmp & DS1307_BIT_CH) { + i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0); + dev_warn(&client->dev, "SET TIME!\n"); + goto read_rtc; + } + break; + case ds_1338: + /* clock halted? turn it on, so clock can tick. */ + if (tmp & DS1307_BIT_CH) + i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0); + + /* oscillator fault? clear flag, and warn */ + if (ds1307->regs[DS1307_REG_CONTROL] & DS1338_BIT_OSF) { + i2c_smbus_write_byte_data(client, DS1307_REG_CONTROL, + ds1307->regs[DS1337_REG_CONTROL] + & ~DS1338_BIT_OSF); + dev_warn(&client->dev, "SET TIME!\n"); + goto read_rtc; + } + break; + case ds_1337: + case ds_1339: + break; } + + tmp = ds1307->regs[DS1307_REG_SECS]; tmp = BCD2BIN(tmp & 0x7f); if (tmp > 60) - goto exit_free; + goto exit_bad; tmp = BCD2BIN(ds1307->regs[DS1307_REG_MIN] & 0x7f); if (tmp > 60) - goto exit_free; + goto exit_bad; tmp = BCD2BIN(ds1307->regs[DS1307_REG_MDAY] & 0x3f); if (tmp == 0 || tmp > 31) - goto exit_free; + goto exit_bad; tmp = BCD2BIN(ds1307->regs[DS1307_REG_MONTH] & 0x1f); if (tmp == 0 || tmp > 12) - goto exit_free; + goto exit_bad; - /* force into in 24 hour mode (most chips) or - * disable century bit (ds1340) - */ tmp = ds1307->regs[DS1307_REG_HOUR]; - if (tmp & (1 << 6)) { - if (tmp & (1 << 5)) - tmp = BCD2BIN(tmp & 0x1f) + 12; - else - tmp = BCD2BIN(tmp); - i2c_smbus_write_byte_data(client, - DS1307_REG_HOUR, - BIN2BCD(tmp)); - } - - /* FIXME chips like 1337 can generate alarm irqs too; those are - * worth exposing through the API (especially when the irq is - * wakeup-capable). - */ - switch (ds1307->type) { - case unknown: - strlcpy(client->name, "unknown", I2C_NAME_SIZE); - break; - case ds_1307: - strlcpy(client->name, "ds1307", I2C_NAME_SIZE); - break; - case ds_1337: - strlcpy(client->name, "ds1337", I2C_NAME_SIZE); - break; case ds_1340: - strlcpy(client->name, "ds1340", I2C_NAME_SIZE); + case m41t00: + /* NOTE: ignores century bits; fix before deploying + * systems that will run through year 2100. + */ break; - } + default: + if (!(tmp & DS1307_BIT_12HR)) + break; - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(client))) - goto exit_free; + /* Be sure we're in 24 hour mode. Multi-master systems + * take note... + */ + tmp = BCD2BIN(tmp & 0x1f); + if (tmp == 12) + tmp = 0; + if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM) + tmp += 12; + i2c_smbus_write_byte_data(client, + DS1307_REG_HOUR, + BIN2BCD(tmp)); + } ds1307->rtc = rtc_device_register(client->name, &client->dev, &ds13xx_rtc_ops, THIS_MODULE); @@ -330,46 +410,40 @@ read_rtc: err = PTR_ERR(ds1307->rtc); dev_err(&client->dev, "unable to register the class device\n"); - goto exit_detach; + goto exit_free; } return 0; -exit_detach: - i2c_detach_client(client); +exit_bad: + dev_dbg(&client->dev, "%s: %02x %02x %02x %02x %02x %02x %02x\n", + "bogus register", + ds1307->regs[0], ds1307->regs[1], + ds1307->regs[2], ds1307->regs[3], + ds1307->regs[4], ds1307->regs[5], + ds1307->regs[6]); + exit_free: kfree(ds1307); -exit: return err; } -static int __devinit -ds1307_attach_adapter(struct i2c_adapter *adapter) -{ - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) - return 0; - return i2c_probe(adapter, &addr_data, ds1307_detect); -} - -static int __devexit ds1307_detach_client(struct i2c_client *client) +static int __devexit ds1307_remove(struct i2c_client *client) { - int err; struct ds1307 *ds1307 = i2c_get_clientdata(client); rtc_device_unregister(ds1307->rtc); - if ((err = i2c_detach_client(client))) - return err; kfree(ds1307); return 0; } static struct i2c_driver ds1307_driver = { .driver = { - .name = "ds1307", + .name = "rtc-ds1307", .owner = THIS_MODULE, }, - .attach_adapter = ds1307_attach_adapter, - .detach_client = __devexit_p(ds1307_detach_client), + .probe = ds1307_probe, + .remove = __devexit_p(ds1307_remove), }; static int __init ds1307_init(void) diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c new file mode 100644 index 000000000000..80c4a8463065 --- /dev/null +++ b/drivers/rtc/rtc-m41t80.c @@ -0,0 +1,917 @@ +/* + * I2C client/driver for the ST M41T80 family of i2c rtc chips. + * + * Author: Alexander Bigga <ab@mycable.de> + * + * Based on m41t00.c by Mark A. Greer <mgreer@mvista.com> + * + * 2006 (c) mycable GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/i2c.h> +#include <linux/rtc.h> +#include <linux/bcd.h> +#ifdef CONFIG_RTC_DRV_M41T80_WDT +#include <linux/miscdevice.h> +#include <linux/watchdog.h> +#include <linux/reboot.h> +#include <linux/fs.h> +#include <linux/ioctl.h> +#endif + +#define M41T80_REG_SSEC 0 +#define M41T80_REG_SEC 1 +#define M41T80_REG_MIN 2 +#define M41T80_REG_HOUR 3 +#define M41T80_REG_WDAY 4 +#define M41T80_REG_DAY 5 +#define M41T80_REG_MON 6 +#define M41T80_REG_YEAR 7 +#define M41T80_REG_ALARM_MON 0xa +#define M41T80_REG_ALARM_DAY 0xb +#define M41T80_REG_ALARM_HOUR 0xc +#define M41T80_REG_ALARM_MIN 0xd +#define M41T80_REG_ALARM_SEC 0xe +#define M41T80_REG_FLAGS 0xf +#define M41T80_REG_SQW 0x13 + +#define M41T80_DATETIME_REG_SIZE (M41T80_REG_YEAR + 1) +#define M41T80_ALARM_REG_SIZE \ + (M41T80_REG_ALARM_SEC + 1 - M41T80_REG_ALARM_MON) + +#define M41T80_SEC_ST (1 << 7) /* ST: Stop Bit */ +#define M41T80_ALMON_AFE (1 << 7) /* AFE: AF Enable Bit */ +#define M41T80_ALMON_SQWE (1 << 6) /* SQWE: SQW Enable Bit */ +#define M41T80_ALHOUR_HT (1 << 6) /* HT: Halt Update Bit */ +#define M41T80_FLAGS_AF (1 << 6) /* AF: Alarm Flag Bit */ +#define M41T80_FLAGS_BATT_LOW (1 << 4) /* BL: Battery Low Bit */ + +#define M41T80_FEATURE_HT (1 << 0) +#define M41T80_FEATURE_BL (1 << 1) + +#define DRV_VERSION "0.05" + +struct m41t80_chip_info { + const char *name; + u8 features; +}; + +static const struct m41t80_chip_info m41t80_chip_info_tbl[] = { + { + .name = "m41t80", + .features = 0, + }, + { + .name = "m41t81", + .features = M41T80_FEATURE_HT, + }, + { + .name = "m41t81s", + .features = M41T80_FEATURE_HT | M41T80_FEATURE_BL, + }, + { + .name = "m41t82", + .features = M41T80_FEATURE_HT | M41T80_FEATURE_BL, + }, + { + .name = "m41t83", + .features = M41T80_FEATURE_HT | M41T80_FEATURE_BL, + }, + { + .name = "m41st84", + .features = M41T80_FEATURE_HT | M41T80_FEATURE_BL, + }, + { + .name = "m41st85", + .features = M41T80_FEATURE_HT | M41T80_FEATURE_BL, + }, + { + .name = "m41st87", + .features = M41T80_FEATURE_HT | M41T80_FEATURE_BL, + }, +}; + +struct m41t80_data { + const struct m41t80_chip_info *chip; + struct rtc_device *rtc; +}; + +static int m41t80_get_datetime(struct i2c_client *client, + struct rtc_time *tm) +{ + u8 buf[M41T80_DATETIME_REG_SIZE], dt_addr[1] = { M41T80_REG_SEC }; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = dt_addr, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = M41T80_DATETIME_REG_SIZE - M41T80_REG_SEC, + .buf = buf + M41T80_REG_SEC, + }, + }; + + if (i2c_transfer(client->adapter, msgs, 2) < 0) { + dev_err(&client->dev, "read error\n"); + return -EIO; + } + + tm->tm_sec = BCD2BIN(buf[M41T80_REG_SEC] & 0x7f); + tm->tm_min = BCD2BIN(buf[M41T80_REG_MIN] & 0x7f); + tm->tm_hour = BCD2BIN(buf[M41T80_REG_HOUR] & 0x3f); + tm->tm_mday = BCD2BIN(buf[M41T80_REG_DAY] & 0x3f); + tm->tm_wday = buf[M41T80_REG_WDAY] & 0x07; + tm->tm_mon = BCD2BIN(buf[M41T80_REG_MON] & 0x1f) - 1; + + /* assume 20YY not 19YY, and ignore the Century Bit */ + tm->tm_year = BCD2BIN(buf[M41T80_REG_YEAR]) + 100; + return 0; +} + +/* Sets the given date and time to the real time clock. */ +static int m41t80_set_datetime(struct i2c_client *client, struct rtc_time *tm) +{ + u8 wbuf[1 + M41T80_DATETIME_REG_SIZE]; + u8 *buf = &wbuf[1]; + u8 dt_addr[1] = { M41T80_REG_SEC }; + struct i2c_msg msgs_in[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = dt_addr, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = M41T80_DATETIME_REG_SIZE - M41T80_REG_SEC, + .buf = buf + M41T80_REG_SEC, + }, + }; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1 + M41T80_DATETIME_REG_SIZE, + .buf = wbuf, + }, + }; + + /* Read current reg values into buf[1..7] */ + if (i2c_transfer(client->adapter, msgs_in, 2) < 0) { + dev_err(&client->dev, "read error\n"); + return -EIO; + } + + wbuf[0] = 0; /* offset into rtc's regs */ + /* Merge time-data and register flags into buf[0..7] */ + buf[M41T80_REG_SSEC] = 0; + buf[M41T80_REG_SEC] = + BIN2BCD(tm->tm_sec) | (buf[M41T80_REG_SEC] & ~0x7f); + buf[M41T80_REG_MIN] = + BIN2BCD(tm->tm_min) | (buf[M41T80_REG_MIN] & ~0x7f); + buf[M41T80_REG_HOUR] = + BIN2BCD(tm->tm_hour) | (buf[M41T80_REG_HOUR] & ~0x3f) ; + buf[M41T80_REG_WDAY] = + (tm->tm_wday & 0x07) | (buf[M41T80_REG_WDAY] & ~0x07); + buf[M41T80_REG_DAY] = + BIN2BCD(tm->tm_mday) | (buf[M41T80_REG_DAY] & ~0x3f); + buf[M41T80_REG_MON] = + BIN2BCD(tm->tm_mon + 1) | (buf[M41T80_REG_MON] & ~0x1f); + /* assume 20YY not 19YY */ + buf[M41T80_REG_YEAR] = BIN2BCD(tm->tm_year % 100); + + if (i2c_transfer(client->adapter, msgs, 1) != 1) { + dev_err(&client->dev, "write error\n"); + return -EIO; + } + return 0; +} + +#if defined(CONFIG_RTC_INTF_PROC) || defined(CONFIG_RTC_INTF_PROC_MODULE) +static int m41t80_rtc_proc(struct device *dev, struct seq_file *seq) +{ + struct i2c_client *client = to_i2c_client(dev); + struct m41t80_data *clientdata = i2c_get_clientdata(client); + u8 reg; + + if (clientdata->chip->features & M41T80_FEATURE_BL) { + reg = i2c_smbus_read_byte_data(client, M41T80_REG_FLAGS); + seq_printf(seq, "battery\t\t: %s\n", + (reg & M41T80_FLAGS_BATT_LOW) ? "exhausted" : "ok"); + } + return 0; +} +#else +#define m41t80_rtc_proc NULL +#endif + +static int m41t80_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + return m41t80_get_datetime(to_i2c_client(dev), tm); +} + +static int m41t80_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + return m41t80_set_datetime(to_i2c_client(dev), tm); +} + +#if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) +static int +m41t80_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +{ + struct i2c_client *client = to_i2c_client(dev); + int rc; + + switch (cmd) { + case RTC_AIE_OFF: + case RTC_AIE_ON: + break; + default: + return -ENOIOCTLCMD; + } + + rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON); + if (rc < 0) + goto err; + switch (cmd) { + case RTC_AIE_OFF: + rc &= ~M41T80_ALMON_AFE; + break; + case RTC_AIE_ON: + rc |= M41T80_ALMON_AFE; + break; + } + if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, rc) < 0) + goto err; + return 0; +err: + return -EIO; +} +#else +#define m41t80_rtc_ioctl NULL +#endif + +static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t) +{ + struct i2c_client *client = to_i2c_client(dev); + u8 wbuf[1 + M41T80_ALARM_REG_SIZE]; + u8 *buf = &wbuf[1]; + u8 *reg = buf - M41T80_REG_ALARM_MON; + u8 dt_addr[1] = { M41T80_REG_ALARM_MON }; + struct i2c_msg msgs_in[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = dt_addr, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = M41T80_ALARM_REG_SIZE, + .buf = buf, + }, + }; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1 + M41T80_ALARM_REG_SIZE, + .buf = wbuf, + }, + }; + + if (i2c_transfer(client->adapter, msgs_in, 2) < 0) { + dev_err(&client->dev, "read error\n"); + return -EIO; + } + reg[M41T80_REG_ALARM_MON] &= ~(0x1f | M41T80_ALMON_AFE); + reg[M41T80_REG_ALARM_DAY] = 0; + reg[M41T80_REG_ALARM_HOUR] &= ~(0x3f | 0x80); + reg[M41T80_REG_ALARM_MIN] = 0; + reg[M41T80_REG_ALARM_SEC] = 0; + + wbuf[0] = M41T80_REG_ALARM_MON; /* offset into rtc's regs */ + reg[M41T80_REG_ALARM_SEC] |= t->time.tm_sec >= 0 ? + BIN2BCD(t->time.tm_sec) : 0x80; + reg[M41T80_REG_ALARM_MIN] |= t->time.tm_min >= 0 ? + BIN2BCD(t->time.tm_min) : 0x80; + reg[M41T80_REG_ALARM_HOUR] |= t->time.tm_hour >= 0 ? + BIN2BCD(t->time.tm_hour) : 0x80; + reg[M41T80_REG_ALARM_DAY] |= t->time.tm_mday >= 0 ? + BIN2BCD(t->time.tm_mday) : 0x80; + if (t->time.tm_mon >= 0) + reg[M41T80_REG_ALARM_MON] |= BIN2BCD(t->time.tm_mon + 1); + else + reg[M41T80_REG_ALARM_DAY] |= 0x40; + + if (i2c_transfer(client->adapter, msgs, 1) != 1) { + dev_err(&client->dev, "write error\n"); + return -EIO; + } + + if (t->enabled) { + reg[M41T80_REG_ALARM_MON] |= M41T80_ALMON_AFE; + if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, + reg[M41T80_REG_ALARM_MON]) < 0) { + dev_err(&client->dev, "write error\n"); + return -EIO; + } + } + return 0; +} + +static int m41t80_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *t) +{ + struct i2c_client *client = to_i2c_client(dev); + u8 buf[M41T80_ALARM_REG_SIZE + 1]; /* all alarm regs and flags */ + u8 dt_addr[1] = { M41T80_REG_ALARM_MON }; + u8 *reg = buf - M41T80_REG_ALARM_MON; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = dt_addr, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = M41T80_ALARM_REG_SIZE + 1, + .buf = buf, + }, + }; + + if (i2c_transfer(client->adapter, msgs, 2) < 0) { + dev_err(&client->dev, "read error\n"); + return -EIO; + } + t->time.tm_sec = -1; + t->time.tm_min = -1; + t->time.tm_hour = -1; + t->time.tm_mday = -1; + t->time.tm_mon = -1; + if (!(reg[M41T80_REG_ALARM_SEC] & 0x80)) + t->time.tm_sec = BCD2BIN(reg[M41T80_REG_ALARM_SEC] & 0x7f); + if (!(reg[M41T80_REG_ALARM_MIN] & 0x80)) + t->time.tm_min = BCD2BIN(reg[M41T80_REG_ALARM_MIN] & 0x7f); + if (!(reg[M41T80_REG_ALARM_HOUR] & 0x80)) + t->time.tm_hour = BCD2BIN(reg[M41T80_REG_ALARM_HOUR] & 0x3f); + if (!(reg[M41T80_REG_ALARM_DAY] & 0x80)) + t->time.tm_mday = BCD2BIN(reg[M41T80_REG_ALARM_DAY] & 0x3f); + if (!(reg[M41T80_REG_ALARM_DAY] & 0x40)) + t->time.tm_mon = BCD2BIN(reg[M41T80_REG_ALARM_MON] & 0x1f) - 1; + t->time.tm_year = -1; + t->time.tm_wday = -1; + t->time.tm_yday = -1; + t->time.tm_isdst = -1; + t->enabled = !!(reg[M41T80_REG_ALARM_MON] & M41T80_ALMON_AFE); + t->pending = !!(reg[M41T80_REG_FLAGS] & M41T80_FLAGS_AF); + return 0; +} + +static struct rtc_class_ops m41t80_rtc_ops = { + .read_time = m41t80_rtc_read_time, + .set_time = m41t80_rtc_set_time, + .read_alarm = m41t80_rtc_read_alarm, + .set_alarm = m41t80_rtc_set_alarm, + .proc = m41t80_rtc_proc, + .ioctl = m41t80_rtc_ioctl, +}; + +#if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) +static ssize_t m41t80_sysfs_show_flags(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + int val; + + val = i2c_smbus_read_byte_data(client, M41T80_REG_FLAGS); + if (val < 0) + return -EIO; + return sprintf(buf, "%#x\n", val); +} +static DEVICE_ATTR(flags, S_IRUGO, m41t80_sysfs_show_flags, NULL); + +static ssize_t m41t80_sysfs_show_sqwfreq(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + int val; + + val = i2c_smbus_read_byte_data(client, M41T80_REG_SQW); + if (val < 0) + return -EIO; + val = (val >> 4) & 0xf; + switch (val) { + case 0: + break; + case 1: + val = 32768; + break; + default: + val = 32768 >> val; + } + return sprintf(buf, "%d\n", val); +} +static ssize_t m41t80_sysfs_set_sqwfreq(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + int almon, sqw; + int val = simple_strtoul(buf, NULL, 0); + + if (val) { + if (!is_power_of_2(val)) + return -EINVAL; + val = ilog2(val); + if (val == 15) + val = 1; + else if (val < 14) + val = 15 - val; + else + return -EINVAL; + } + /* disable SQW, set SQW frequency & re-enable */ + almon = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON); + if (almon < 0) + return -EIO; + sqw = i2c_smbus_read_byte_data(client, M41T80_REG_SQW); + if (sqw < 0) + return -EIO; + sqw = (sqw & 0x0f) | (val << 4); + if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, + almon & ~M41T80_ALMON_SQWE) < 0 || + i2c_smbus_write_byte_data(client, M41T80_REG_SQW, sqw) < 0) + return -EIO; + if (val && i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, + almon | M41T80_ALMON_SQWE) < 0) + return -EIO; + return count; +} +static DEVICE_ATTR(sqwfreq, S_IRUGO | S_IWUSR, + m41t80_sysfs_show_sqwfreq, m41t80_sysfs_set_sqwfreq); + +static struct attribute *attrs[] = { + &dev_attr_flags.attr, + &dev_attr_sqwfreq.attr, + NULL, +}; +static struct attribute_group attr_group = { + .attrs = attrs, +}; + +static int m41t80_sysfs_register(struct device *dev) +{ + return sysfs_create_group(&dev->kobj, &attr_group); +} +#else +static int m41t80_sysfs_register(struct device *dev) +{ + return 0; +} +#endif + +#ifdef CONFIG_RTC_DRV_M41T80_WDT +/* + ***************************************************************************** + * + * Watchdog Driver + * + ***************************************************************************** + */ +static struct i2c_client *save_client; + +/* Default margin */ +#define WD_TIMO 60 /* 1..31 seconds */ + +static int wdt_margin = WD_TIMO; +module_param(wdt_margin, int, 0); +MODULE_PARM_DESC(wdt_margin, "Watchdog timeout in seconds (default 60s)"); + +static unsigned long wdt_is_open; +static int boot_flag; + +/** + * wdt_ping: + * + * Reload counter one with the watchdog timeout. We don't bother reloading + * the cascade counter. + */ +static void wdt_ping(void) +{ + unsigned char i2c_data[2]; + struct i2c_msg msgs1[1] = { + { + .addr = save_client->addr, + .flags = 0, + .len = 2, + .buf = i2c_data, + }, + }; + i2c_data[0] = 0x09; /* watchdog register */ + + if (wdt_margin > 31) + i2c_data[1] = (wdt_margin & 0xFC) | 0x83; /* resolution = 4s */ + else + /* + * WDS = 1 (0x80), mulitplier = WD_TIMO, resolution = 1s (0x02) + */ + i2c_data[1] = wdt_margin<<2 | 0x82; + + i2c_transfer(save_client->adapter, msgs1, 1); +} + +/** + * wdt_disable: + * + * disables watchdog. + */ +static void wdt_disable(void) +{ + unsigned char i2c_data[2], i2c_buf[0x10]; + struct i2c_msg msgs0[2] = { + { + .addr = save_client->addr, + .flags = 0, + .len = 1, + .buf = i2c_data, + }, + { + .addr = save_client->addr, + .flags = I2C_M_RD, + .len = 1, + .buf = i2c_buf, + }, + }; + struct i2c_msg msgs1[1] = { + { + .addr = save_client->addr, + .flags = 0, + .len = 2, + .buf = i2c_data, + }, + }; + + i2c_data[0] = 0x09; + i2c_transfer(save_client->adapter, msgs0, 2); + + i2c_data[0] = 0x09; + i2c_data[1] = 0x00; + i2c_transfer(save_client->adapter, msgs1, 1); +} + +/** + * wdt_write: + * @file: file handle to the watchdog + * @buf: buffer to write (unused as data does not matter here + * @count: count of bytes + * @ppos: pointer to the position to write. No seeks allowed + * + * A write to a watchdog device is defined as a keepalive signal. Any + * write of data will do, as we we don't define content meaning. + */ +static ssize_t wdt_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + /* Can't seek (pwrite) on this device + if (ppos != &file->f_pos) + return -ESPIPE; + */ + if (count) { + wdt_ping(); + return 1; + } + return 0; +} + +static ssize_t wdt_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + return 0; +} + +/** + * wdt_ioctl: + * @inode: inode of the device + * @file: file handle to the device + * @cmd: watchdog command + * @arg: argument pointer + * + * The watchdog API defines a common set of functions for all watchdogs + * according to their available features. We only actually usefully support + * querying capabilities and current status. + */ +static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, + unsigned long arg) +{ + int new_margin, rv; + static struct watchdog_info ident = { + .options = WDIOF_POWERUNDER | WDIOF_KEEPALIVEPING | + WDIOF_SETTIMEOUT, + .firmware_version = 1, + .identity = "M41T80 WTD" + }; + + switch (cmd) { + case WDIOC_GETSUPPORT: + return copy_to_user((struct watchdog_info __user *)arg, &ident, + sizeof(ident)) ? -EFAULT : 0; + + case WDIOC_GETSTATUS: + case WDIOC_GETBOOTSTATUS: + return put_user(boot_flag, (int __user *)arg); + case WDIOC_KEEPALIVE: + wdt_ping(); + return 0; + case WDIOC_SETTIMEOUT: + if (get_user(new_margin, (int __user *)arg)) + return -EFAULT; + /* Arbitrary, can't find the card's limits */ + if (new_margin < 1 || new_margin > 124) + return -EINVAL; + wdt_margin = new_margin; + wdt_ping(); + /* Fall */ + case WDIOC_GETTIMEOUT: + return put_user(wdt_margin, (int __user *)arg); + + case WDIOC_SETOPTIONS: + if (copy_from_user(&rv, (int __user *)arg, sizeof(int))) + return -EFAULT; + + if (rv & WDIOS_DISABLECARD) { + printk(KERN_INFO + "rtc-m41t80: disable watchdog\n"); + wdt_disable(); + } + + if (rv & WDIOS_ENABLECARD) { + printk(KERN_INFO + "rtc-m41t80: enable watchdog\n"); + wdt_ping(); + } + + return -EINVAL; + } + return -ENOTTY; +} + +/** + * wdt_open: + * @inode: inode of device + * @file: file handle to device + * + */ +static int wdt_open(struct inode *inode, struct file *file) +{ + if (MINOR(inode->i_rdev) == WATCHDOG_MINOR) { + if (test_and_set_bit(0, &wdt_is_open)) + return -EBUSY; + /* + * Activate + */ + wdt_is_open = 1; + return 0; + } + return -ENODEV; +} + +/** + * wdt_close: + * @inode: inode to board + * @file: file handle to board + * + */ +static int wdt_release(struct inode *inode, struct file *file) +{ + if (MINOR(inode->i_rdev) == WATCHDOG_MINOR) + clear_bit(0, &wdt_is_open); + return 0; +} + +/** + * notify_sys: + * @this: our notifier block + * @code: the event being reported + * @unused: unused + * + * Our notifier is called on system shutdowns. We want to turn the card + * off at reboot otherwise the machine will reboot again during memory + * test or worse yet during the following fsck. This would suck, in fact + * trust me - if it happens it does suck. + */ +static int wdt_notify_sys(struct notifier_block *this, unsigned long code, + void *unused) +{ + if (code == SYS_DOWN || code == SYS_HALT) + /* Disable Watchdog */ + wdt_disable(); + return NOTIFY_DONE; +} + +static const struct file_operations wdt_fops = { + .owner = THIS_MODULE, + .read = wdt_read, + .ioctl = wdt_ioctl, + .write = wdt_write, + .open = wdt_open, + .release = wdt_release, +}; + +static struct miscdevice wdt_dev = { + .minor = WATCHDOG_MINOR, + .name = "watchdog", + .fops = &wdt_fops, +}; + +/* + * The WDT card needs to learn about soft shutdowns in order to + * turn the timebomb registers off. + */ +static struct notifier_block wdt_notifier = { + .notifier_call = wdt_notify_sys, +}; +#endif /* CONFIG_RTC_DRV_M41T80_WDT */ + +/* + ***************************************************************************** + * + * Driver Interface + * + ***************************************************************************** + */ +static int m41t80_probe(struct i2c_client *client) +{ + int i, rc = 0; + struct rtc_device *rtc = NULL; + struct rtc_time tm; + const struct m41t80_chip_info *chip; + struct m41t80_data *clientdata = NULL; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C + | I2C_FUNC_SMBUS_BYTE_DATA)) { + rc = -ENODEV; + goto exit; + } + + dev_info(&client->dev, + "chip found, driver version " DRV_VERSION "\n"); + + chip = NULL; + for (i = 0; i < ARRAY_SIZE(m41t80_chip_info_tbl); i++) { + if (!strcmp(m41t80_chip_info_tbl[i].name, client->name)) { + chip = &m41t80_chip_info_tbl[i]; + break; + } + } + if (!chip) { + dev_err(&client->dev, "%s is not supported\n", client->name); + rc = -ENODEV; + goto exit; + } + + clientdata = kzalloc(sizeof(*clientdata), GFP_KERNEL); + if (!clientdata) { + rc = -ENOMEM; + goto exit; + } + + rtc = rtc_device_register(client->name, &client->dev, + &m41t80_rtc_ops, THIS_MODULE); + if (IS_ERR(rtc)) { + rc = PTR_ERR(rtc); + rtc = NULL; + goto exit; + } + + clientdata->rtc = rtc; + clientdata->chip = chip; + i2c_set_clientdata(client, clientdata); + + /* Make sure HT (Halt Update) bit is cleared */ + rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_HOUR); + if (rc < 0) + goto ht_err; + + if (rc & M41T80_ALHOUR_HT) { + if (chip->features & M41T80_FEATURE_HT) { + m41t80_get_datetime(client, &tm); + dev_info(&client->dev, "HT bit was set!\n"); + dev_info(&client->dev, + "Power Down at " + "%04i-%02i-%02i %02i:%02i:%02i\n", + tm.tm_year + 1900, + tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, + tm.tm_min, tm.tm_sec); + } + if (i2c_smbus_write_byte_data(client, + M41T80_REG_ALARM_HOUR, + rc & ~M41T80_ALHOUR_HT) < 0) + goto ht_err; + } + + /* Make sure ST (stop) bit is cleared */ + rc = i2c_smbus_read_byte_data(client, M41T80_REG_SEC); + if (rc < 0) + goto st_err; + + if (rc & M41T80_SEC_ST) { + if (i2c_smbus_write_byte_data(client, M41T80_REG_SEC, + rc & ~M41T80_SEC_ST) < 0) + goto st_err; + } + + rc = m41t80_sysfs_register(&client->dev); + if (rc) + goto exit; + +#ifdef CONFIG_RTC_DRV_M41T80_WDT + if (chip->features & M41T80_FEATURE_HT) { + rc = misc_register(&wdt_dev); + if (rc) + goto exit; + rc = register_reboot_notifier(&wdt_notifier); + if (rc) { + misc_deregister(&wdt_dev); + goto exit; + } + save_client = client; + } +#endif + return 0; + +st_err: + rc = -EIO; + dev_err(&client->dev, "Can't clear ST bit\n"); + goto exit; +ht_err: + rc = -EIO; + dev_err(&client->dev, "Can't clear HT bit\n"); + goto exit; + +exit: + if (rtc) + rtc_device_unregister(rtc); + kfree(clientdata); + return rc; +} + +static int m41t80_remove(struct i2c_client *client) +{ + struct m41t80_data *clientdata = i2c_get_clientdata(client); + struct rtc_device *rtc = clientdata->rtc; + +#ifdef CONFIG_RTC_DRV_M41T80_WDT + if (clientdata->chip->features & M41T80_FEATURE_HT) { + misc_deregister(&wdt_dev); + unregister_reboot_notifier(&wdt_notifier); + } +#endif + if (rtc) + rtc_device_unregister(rtc); + kfree(clientdata); + + return 0; +} + +static struct i2c_driver m41t80_driver = { + .driver = { + .name = "m41t80", + }, + .probe = m41t80_probe, + .remove = m41t80_remove, +}; + +static int __init m41t80_rtc_init(void) +{ + return i2c_add_driver(&m41t80_driver); +} + +static void __exit m41t80_rtc_exit(void) +{ + i2c_del_driver(&m41t80_driver); +} + +MODULE_AUTHOR("Alexander Bigga <ab@mycable.de>"); +MODULE_DESCRIPTION("ST Microelectronics M41T80 series RTC I2C Client Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +module_init(m41t80_rtc_init); +module_exit(m41t80_rtc_exit); diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c new file mode 100644 index 000000000000..33b752350ab5 --- /dev/null +++ b/drivers/rtc/rtc-m48t59.c @@ -0,0 +1,491 @@ +/* + * ST M48T59 RTC driver + * + * Copyright (c) 2007 Wind River Systems, Inc. + * + * Author: Mark Zhan <rongkai.zhan@windriver.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/rtc.h> +#include <linux/rtc/m48t59.h> +#include <linux/bcd.h> + +#ifndef NO_IRQ +#define NO_IRQ (-1) +#endif + +#define M48T59_READ(reg) pdata->read_byte(dev, reg) +#define M48T59_WRITE(val, reg) pdata->write_byte(dev, reg, val) + +#define M48T59_SET_BITS(mask, reg) \ + M48T59_WRITE((M48T59_READ(reg) | (mask)), (reg)) +#define M48T59_CLEAR_BITS(mask, reg) \ + M48T59_WRITE((M48T59_READ(reg) & ~(mask)), (reg)) + +struct m48t59_private { + void __iomem *ioaddr; + unsigned int size; /* iomem size */ + unsigned int irq; + struct rtc_device *rtc; + spinlock_t lock; /* serialize the NVRAM and RTC access */ +}; + +/* + * This is the generic access method when the chip is memory-mapped + */ +static void +m48t59_mem_writeb(struct device *dev, u32 ofs, u8 val) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + + writeb(val, m48t59->ioaddr+ofs); +} + +static u8 +m48t59_mem_readb(struct device *dev, u32 ofs) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + + return readb(m48t59->ioaddr+ofs); +} + +/* + * NOTE: M48T59 only uses BCD mode + */ +static int m48t59_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + unsigned long flags; + u8 val; + + spin_lock_irqsave(&m48t59->lock, flags); + /* Issue the READ command */ + M48T59_SET_BITS(M48T59_CNTL_READ, M48T59_CNTL); + + tm->tm_year = BCD2BIN(M48T59_READ(M48T59_YEAR)); + /* tm_mon is 0-11 */ + tm->tm_mon = BCD2BIN(M48T59_READ(M48T59_MONTH)) - 1; + tm->tm_mday = BCD2BIN(M48T59_READ(M48T59_MDAY)); + + val = M48T59_READ(M48T59_WDAY); + if ((val & M48T59_WDAY_CEB) && (val & M48T59_WDAY_CB)) { + dev_dbg(dev, "Century bit is enabled\n"); + tm->tm_year += 100; /* one century */ + } + + tm->tm_wday = BCD2BIN(val & 0x07); + tm->tm_hour = BCD2BIN(M48T59_READ(M48T59_HOUR) & 0x3F); + tm->tm_min = BCD2BIN(M48T59_READ(M48T59_MIN) & 0x7F); + tm->tm_sec = BCD2BIN(M48T59_READ(M48T59_SEC) & 0x7F); + + /* Clear the READ bit */ + M48T59_CLEAR_BITS(M48T59_CNTL_READ, M48T59_CNTL); + spin_unlock_irqrestore(&m48t59->lock, flags); + + dev_dbg(dev, "RTC read time %04d-%02d-%02d %02d/%02d/%02d\n", + tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + return 0; +} + +static int m48t59_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + unsigned long flags; + u8 val = 0; + + dev_dbg(dev, "RTC set time %04d-%02d-%02d %02d/%02d/%02d\n", + tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + + spin_lock_irqsave(&m48t59->lock, flags); + /* Issue the WRITE command */ + M48T59_SET_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); + + M48T59_WRITE((BIN2BCD(tm->tm_sec) & 0x7F), M48T59_SEC); + M48T59_WRITE((BIN2BCD(tm->tm_min) & 0x7F), M48T59_MIN); + M48T59_WRITE((BIN2BCD(tm->tm_hour) & 0x3F), M48T59_HOUR); + M48T59_WRITE((BIN2BCD(tm->tm_mday) & 0x3F), M48T59_MDAY); + /* tm_mon is 0-11 */ + M48T59_WRITE((BIN2BCD(tm->tm_mon + 1) & 0x1F), M48T59_MONTH); + M48T59_WRITE(BIN2BCD(tm->tm_year % 100), M48T59_YEAR); + + if (tm->tm_year/100) + val = (M48T59_WDAY_CEB | M48T59_WDAY_CB); + val |= (BIN2BCD(tm->tm_wday) & 0x07); + M48T59_WRITE(val, M48T59_WDAY); + + /* Clear the WRITE bit */ + M48T59_CLEAR_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); + spin_unlock_irqrestore(&m48t59->lock, flags); + return 0; +} + +/* + * Read alarm time and date in RTC + */ +static int m48t59_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + struct rtc_time *tm = &alrm->time; + unsigned long flags; + u8 val; + + /* If no irq, we don't support ALARM */ + if (m48t59->irq == NO_IRQ) + return -EIO; + + spin_lock_irqsave(&m48t59->lock, flags); + /* Issue the READ command */ + M48T59_SET_BITS(M48T59_CNTL_READ, M48T59_CNTL); + + tm->tm_year = BCD2BIN(M48T59_READ(M48T59_YEAR)); + /* tm_mon is 0-11 */ + tm->tm_mon = BCD2BIN(M48T59_READ(M48T59_MONTH)) - 1; + + val = M48T59_READ(M48T59_WDAY); + if ((val & M48T59_WDAY_CEB) && (val & M48T59_WDAY_CB)) + tm->tm_year += 100; /* one century */ + + tm->tm_mday = BCD2BIN(M48T59_READ(M48T59_ALARM_DATE)); + tm->tm_hour = BCD2BIN(M48T59_READ(M48T59_ALARM_HOUR)); + tm->tm_min = BCD2BIN(M48T59_READ(M48T59_ALARM_MIN)); + tm->tm_sec = BCD2BIN(M48T59_READ(M48T59_ALARM_SEC)); + + /* Clear the READ bit */ + M48T59_CLEAR_BITS(M48T59_CNTL_READ, M48T59_CNTL); + spin_unlock_irqrestore(&m48t59->lock, flags); + + dev_dbg(dev, "RTC read alarm time %04d-%02d-%02d %02d/%02d/%02d\n", + tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + return 0; +} + +/* + * Set alarm time and date in RTC + */ +static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + struct rtc_time *tm = &alrm->time; + u8 mday, hour, min, sec; + unsigned long flags; + + /* If no irq, we don't support ALARM */ + if (m48t59->irq == NO_IRQ) + return -EIO; + + /* + * 0xff means "always match" + */ + mday = tm->tm_mday; + mday = (mday >= 1 && mday <= 31) ? BIN2BCD(mday) : 0xff; + if (mday == 0xff) + mday = M48T59_READ(M48T59_MDAY); + + hour = tm->tm_hour; + hour = (hour < 24) ? BIN2BCD(hour) : 0x00; + + min = tm->tm_min; + min = (min < 60) ? BIN2BCD(min) : 0x00; + + sec = tm->tm_sec; + sec = (sec < 60) ? BIN2BCD(sec) : 0x00; + + spin_lock_irqsave(&m48t59->lock, flags); + /* Issue the WRITE command */ + M48T59_SET_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); + + M48T59_WRITE(mday, M48T59_ALARM_DATE); + M48T59_WRITE(hour, M48T59_ALARM_HOUR); + M48T59_WRITE(min, M48T59_ALARM_MIN); + M48T59_WRITE(sec, M48T59_ALARM_SEC); + + /* Clear the WRITE bit */ + M48T59_CLEAR_BITS(M48T59_CNTL_WRITE, M48T59_CNTL); + spin_unlock_irqrestore(&m48t59->lock, flags); + + dev_dbg(dev, "RTC set alarm time %04d-%02d-%02d %02d/%02d/%02d\n", + tm->tm_year + 1900, tm->tm_mon, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + return 0; +} + +/* + * Handle commands from user-space + */ +static int m48t59_rtc_ioctl(struct device *dev, unsigned int cmd, + unsigned long arg) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&m48t59->lock, flags); + switch (cmd) { + case RTC_AIE_OFF: /* alarm interrupt off */ + M48T59_WRITE(0x00, M48T59_INTR); + break; + case RTC_AIE_ON: /* alarm interrupt on */ + M48T59_WRITE(M48T59_INTR_AFE, M48T59_INTR); + break; + default: + ret = -ENOIOCTLCMD; + break; + } + spin_unlock_irqrestore(&m48t59->lock, flags); + + return ret; +} + +static int m48t59_rtc_proc(struct device *dev, struct seq_file *seq) +{ + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + unsigned long flags; + u8 val; + + spin_lock_irqsave(&m48t59->lock, flags); + val = M48T59_READ(M48T59_FLAGS); + spin_unlock_irqrestore(&m48t59->lock, flags); + + seq_printf(seq, "battery\t\t: %s\n", + (val & M48T59_FLAGS_BF) ? "low" : "normal"); + return 0; +} + +/* + * IRQ handler for the RTC + */ +static irqreturn_t m48t59_rtc_interrupt(int irq, void *dev_id) +{ + struct device *dev = (struct device *)dev_id; + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + u8 event; + + spin_lock(&m48t59->lock); + event = M48T59_READ(M48T59_FLAGS); + spin_unlock(&m48t59->lock); + + if (event & M48T59_FLAGS_AF) { + rtc_update_irq(m48t59->rtc, 1, (RTC_AF | RTC_IRQF)); + return IRQ_HANDLED; + } + + return IRQ_NONE; +} + +static const struct rtc_class_ops m48t59_rtc_ops = { + .ioctl = m48t59_rtc_ioctl, + .read_time = m48t59_rtc_read_time, + .set_time = m48t59_rtc_set_time, + .read_alarm = m48t59_rtc_readalarm, + .set_alarm = m48t59_rtc_setalarm, + .proc = m48t59_rtc_proc, +}; + +static ssize_t m48t59_nvram_read(struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t pos, size_t size) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + ssize_t cnt = 0; + unsigned long flags; + + for (; size > 0 && pos < M48T59_NVRAM_SIZE; cnt++, size--) { + spin_lock_irqsave(&m48t59->lock, flags); + *buf++ = M48T59_READ(cnt); + spin_unlock_irqrestore(&m48t59->lock, flags); + } + + return cnt; +} + +static ssize_t m48t59_nvram_write(struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t pos, size_t size) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct platform_device *pdev = to_platform_device(dev); + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + ssize_t cnt = 0; + unsigned long flags; + + for (; size > 0 && pos < M48T59_NVRAM_SIZE; cnt++, size--) { + spin_lock_irqsave(&m48t59->lock, flags); + M48T59_WRITE(*buf++, cnt); + spin_unlock_irqrestore(&m48t59->lock, flags); + } + + return cnt; +} + +static struct bin_attribute m48t59_nvram_attr = { + .attr = { + .name = "nvram", + .mode = S_IRUGO | S_IWUGO, + .owner = THIS_MODULE, + }, + .read = m48t59_nvram_read, + .write = m48t59_nvram_write, +}; + +static int __devinit m48t59_rtc_probe(struct platform_device *pdev) +{ + struct m48t59_plat_data *pdata = pdev->dev.platform_data; + struct m48t59_private *m48t59 = NULL; + struct resource *res; + int ret = -ENOMEM; + + /* This chip could be memory-mapped or I/O-mapped */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!res) + return -EINVAL; + } + + if (res->flags & IORESOURCE_IO) { + /* If we are I/O-mapped, the platform should provide + * the operations accessing chip registers. + */ + if (!pdata || !pdata->write_byte || !pdata->read_byte) + return -EINVAL; + } else if (res->flags & IORESOURCE_MEM) { + /* we are memory-mapped */ + if (!pdata) { + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + /* Ensure we only kmalloc platform data once */ + pdev->dev.platform_data = pdata; + } + + /* Try to use the generic memory read/write ops */ + if (!pdata->write_byte) + pdata->write_byte = m48t59_mem_writeb; + if (!pdata->read_byte) + pdata->read_byte = m48t59_mem_readb; + } + + m48t59 = kzalloc(sizeof(*m48t59), GFP_KERNEL); + if (!m48t59) + return -ENOMEM; + + m48t59->size = res->end - res->start + 1; + m48t59->ioaddr = ioremap(res->start, m48t59->size); + if (!m48t59->ioaddr) + goto out; + + /* Try to get irq number. We also can work in + * the mode without IRQ. + */ + m48t59->irq = platform_get_irq(pdev, 0); + if (m48t59->irq < 0) + m48t59->irq = NO_IRQ; + + if (m48t59->irq != NO_IRQ) { + ret = request_irq(m48t59->irq, m48t59_rtc_interrupt, + IRQF_SHARED, "rtc-m48t59", &pdev->dev); + if (ret) + goto out; + } + + m48t59->rtc = rtc_device_register("m48t59", &pdev->dev, + &m48t59_rtc_ops, THIS_MODULE); + if (IS_ERR(m48t59->rtc)) { + ret = PTR_ERR(m48t59->rtc); + goto out; + } + + ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr); + if (ret) + goto out; + + spin_lock_init(&m48t59->lock); + platform_set_drvdata(pdev, m48t59); + return 0; + +out: + if (!IS_ERR(m48t59->rtc)) + rtc_device_unregister(m48t59->rtc); + if (m48t59->irq != NO_IRQ) + free_irq(m48t59->irq, &pdev->dev); + if (m48t59->ioaddr) + iounmap(m48t59->ioaddr); + if (m48t59) + kfree(m48t59); + return ret; +} + +static int __devexit m48t59_rtc_remove(struct platform_device *pdev) +{ + struct m48t59_private *m48t59 = platform_get_drvdata(pdev); + + sysfs_remove_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr); + if (!IS_ERR(m48t59->rtc)) + rtc_device_unregister(m48t59->rtc); + if (m48t59->ioaddr) + iounmap(m48t59->ioaddr); + if (m48t59->irq != NO_IRQ) + free_irq(m48t59->irq, &pdev->dev); + platform_set_drvdata(pdev, NULL); + kfree(m48t59); + return 0; +} + +static struct platform_driver m48t59_rtc_platdrv = { + .driver = { + .name = "rtc-m48t59", + .owner = THIS_MODULE, + }, + .probe = m48t59_rtc_probe, + .remove = __devexit_p(m48t59_rtc_remove), +}; + +static int __init m48t59_rtc_init(void) +{ + return platform_driver_register(&m48t59_rtc_platdrv); +} + +static void __exit m48t59_rtc_exit(void) +{ + platform_driver_unregister(&m48t59_rtc_platdrv); +} + +module_init(m48t59_rtc_init); +module_exit(m48t59_rtc_exit); + +MODULE_AUTHOR("Mark Zhan <rongkai.zhan@windriver.com>"); +MODULE_DESCRIPTION("M48T59 RTC driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c index 09bbe575647b..6b67b5097927 100644 --- a/drivers/rtc/rtc-rs5c372.c +++ b/drivers/rtc/rtc-rs5c372.c @@ -13,13 +13,7 @@ #include <linux/rtc.h> #include <linux/bcd.h> -#define DRV_VERSION "0.4" - -/* Addresses to scan */ -static unsigned short normal_i2c[] = { /* 0x32,*/ I2C_CLIENT_END }; - -/* Insmod parameters */ -I2C_CLIENT_INSMOD; +#define DRV_VERSION "0.5" /* @@ -88,9 +82,6 @@ struct rs5c372 { unsigned has_irq:1; char buf[17]; char *regs; - - /* on conversion to a "new style" i2c driver, this vanishes */ - struct i2c_client dev; }; static int rs5c_get_regs(struct rs5c372 *rs5c) @@ -483,25 +474,35 @@ static int rs5c_sysfs_register(struct device *dev) return err; } +static void rs5c_sysfs_unregister(struct device *dev) +{ + device_remove_file(dev, &dev_attr_trim); + device_remove_file(dev, &dev_attr_osc); +} + #else static int rs5c_sysfs_register(struct device *dev) { return 0; } + +static void rs5c_sysfs_unregister(struct device *dev) +{ + /* nothing */ +} #endif /* SYSFS */ static struct i2c_driver rs5c372_driver; -static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) +static int rs5c372_probe(struct i2c_client *client) { int err = 0; - struct i2c_client *client; struct rs5c372 *rs5c372; struct rtc_time tm; - dev_dbg(&adapter->dev, "%s\n", __FUNCTION__); + dev_dbg(&client->dev, "%s\n", __FUNCTION__); - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) { + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { err = -ENODEV; goto exit; } @@ -514,35 +515,22 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) /* we read registers 0x0f then 0x00-0x0f; skip the first one */ rs5c372->regs=&rs5c372->buf[1]; - /* On conversion to a "new style" i2c driver, we'll be handed - * the i2c_client (we won't create it) - */ - client = &rs5c372->dev; rs5c372->client = client; - - /* I2C client */ - client->addr = address; - client->driver = &rs5c372_driver; - client->adapter = adapter; - - strlcpy(client->name, rs5c372_driver.driver.name, I2C_NAME_SIZE); - i2c_set_clientdata(client, rs5c372); - /* Inform the i2c layer */ - if ((err = i2c_attach_client(client))) - goto exit_kfree; - err = rs5c_get_regs(rs5c372); if (err < 0) - goto exit_detach; + goto exit_kfree; - /* For "new style" drivers, irq is in i2c_client and chip type - * info comes from i2c_client.dev.platform_data. Meanwhile: - * - * STICK BOARD-SPECIFIC SETUP CODE RIGHT HERE - */ - if (rs5c372->type == rtc_undef) { + if (strcmp(client->name, "rs5c372a") == 0) + rs5c372->type = rtc_rs5c372a; + else if (strcmp(client->name, "rs5c372b") == 0) + rs5c372->type = rtc_rs5c372b; + else if (strcmp(client->name, "rv5c386") == 0) + rs5c372->type = rtc_rv5c386; + else if (strcmp(client->name, "rv5c387a") == 0) + rs5c372->type = rtc_rv5c387a; + else { rs5c372->type = rtc_rs5c372b; dev_warn(&client->dev, "assuming rs5c372b\n"); } @@ -567,7 +555,7 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) break; default: dev_err(&client->dev, "unknown RTC type\n"); - goto exit_detach; + goto exit_kfree; } /* if the oscillator lost power and no other software (like @@ -601,7 +589,7 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) if ((i2c_master_send(client, buf, 3)) != 3) { dev_err(&client->dev, "setup error\n"); - goto exit_detach; + goto exit_kfree; } rs5c372->regs[RS5C_REG_CTRL1] = buf[1]; rs5c372->regs[RS5C_REG_CTRL2] = buf[2]; @@ -621,14 +609,14 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) rs5c372->time24 ? "24hr" : "am/pm" ); - /* FIXME when client->irq exists, use it to register alarm irq */ + /* REVISIT use client->irq to register alarm irq ... */ rs5c372->rtc = rtc_device_register(rs5c372_driver.driver.name, &client->dev, &rs5c372_rtc_ops, THIS_MODULE); if (IS_ERR(rs5c372->rtc)) { err = PTR_ERR(rs5c372->rtc); - goto exit_detach; + goto exit_kfree; } err = rs5c_sysfs_register(&client->dev); @@ -640,9 +628,6 @@ static int rs5c372_probe(struct i2c_adapter *adapter, int address, int kind) exit_devreg: rtc_device_unregister(rs5c372->rtc); -exit_detach: - i2c_detach_client(client); - exit_kfree: kfree(rs5c372); @@ -650,24 +635,12 @@ exit: return err; } -static int rs5c372_attach(struct i2c_adapter *adapter) +static int rs5c372_remove(struct i2c_client *client) { - return i2c_probe(adapter, &addr_data, rs5c372_probe); -} - -static int rs5c372_detach(struct i2c_client *client) -{ - int err; struct rs5c372 *rs5c372 = i2c_get_clientdata(client); - if (rs5c372->rtc) - rtc_device_unregister(rs5c372->rtc); - - /* REVISIT properly destroy the sysfs files ... */ - - if ((err = i2c_detach_client(client))) - return err; - + rtc_device_unregister(rs5c372->rtc); + rs5c_sysfs_unregister(&client->dev); kfree(rs5c372); return 0; } @@ -676,8 +649,8 @@ static struct i2c_driver rs5c372_driver = { .driver = { .name = "rtc-rs5c372", }, - .attach_adapter = &rs5c372_attach, - .detach_client = &rs5c372_detach, + .probe = rs5c372_probe, + .remove = rs5c372_remove, }; static __init int rs5c372_init(void) diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 1340451ea408..35765f6a86e0 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -747,14 +747,9 @@ dcssblk_check_params(void) static void __exit dcssblk_exit(void) { - int rc; - PRINT_DEBUG("DCSSBLOCK EXIT...\n"); s390_root_dev_unregister(dcssblk_root_dev); - rc = unregister_blkdev(dcssblk_major, DCSSBLK_NAME); - if (rc) { - PRINT_ERR("unregister_blkdev() failed!\n"); - } + unregister_blkdev(dcssblk_major, DCSSBLK_NAME); PRINT_DEBUG("...finished!\n"); } diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig index 66102a184322..3f36cb3910ee 100644 --- a/drivers/s390/char/Kconfig +++ b/drivers/s390/char/Kconfig @@ -164,3 +164,10 @@ config MONWRITER help Character device driver for writing z/VM monitor service records +config S390_VMUR + tristate "z/VM unit record device driver" + depends on S390 + default "m" + help + Character device driver for z/VM reader, puncher and printer. + diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile index c210784bdf46..130de19916f2 100644 --- a/drivers/s390/char/Makefile +++ b/drivers/s390/char/Makefile @@ -29,6 +29,7 @@ obj-$(CONFIG_S390_TAPE_34XX) += tape_34xx.o obj-$(CONFIG_S390_TAPE_3590) += tape_3590.o obj-$(CONFIG_MONREADER) += monreader.o obj-$(CONFIG_MONWRITER) += monwriter.o +obj-$(CONFIG_S390_VMUR) += vmur.o zcore_mod-objs := sclp_sdias.o zcore.o obj-$(CONFIG_ZFCPDUMP) += zcore_mod.o diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index e765875e8db2..80e7a537e7d2 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -131,10 +131,9 @@ tape_34xx_schedule_work(struct tape_device *device, enum tape_op op) { struct tape_34xx_work *p; - if ((p = kmalloc(sizeof(*p), GFP_ATOMIC)) == NULL) + if ((p = kzalloc(sizeof(*p), GFP_ATOMIC)) == NULL) return -ENOMEM; - memset(p, 0, sizeof(*p)); INIT_WORK(&p->work, tape_34xx_work_handler); p->device = tape_get_device_reference(device); diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 82e6a6b253eb..2f419b0ea628 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -1,7 +1,7 @@ /* - * Copyright (C) 2004,2005 IBM Corporation + * Copyright IBM Corp. 2004,2007 * Interface implementation for communication with the z/VM control program - * Author(s): Christian Borntraeger <cborntra@de.ibm.com> + * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> * * * z/VMs CP offers the possibility to issue commands via the diagnose code 8 @@ -22,9 +22,11 @@ #include "vmcp.h" MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Borntraeger <cborntra@de.ibm.com>"); +MODULE_AUTHOR("Christian Borntraeger <borntraeger@de.ibm.com>"); MODULE_DESCRIPTION("z/VM CP interface"); +#define PRINTK_HEADER "vmcp: " + static debug_info_t *vmcp_debug; static int vmcp_open(struct inode *inode, struct file *file) @@ -40,7 +42,7 @@ static int vmcp_open(struct inode *inode, struct file *file) session->bufsize = PAGE_SIZE; session->response = NULL; session->resp_size = 0; - init_MUTEX(&session->mutex); + mutex_init(&session->mutex); file->private_data = session; return nonseekable_open(inode, file); } @@ -57,37 +59,37 @@ static int vmcp_release(struct inode *inode, struct file *file) } static ssize_t -vmcp_read(struct file *file, char __user * buff, size_t count, loff_t * ppos) +vmcp_read(struct file *file, char __user *buff, size_t count, loff_t *ppos) { size_t tocopy; struct vmcp_session *session; session = (struct vmcp_session *)file->private_data; - if (down_interruptible(&session->mutex)) + if (mutex_lock_interruptible(&session->mutex)) return -ERESTARTSYS; if (!session->response) { - up(&session->mutex); + mutex_unlock(&session->mutex); return 0; } if (*ppos > session->resp_size) { - up(&session->mutex); + mutex_unlock(&session->mutex); return 0; } tocopy = min(session->resp_size - (size_t) (*ppos), count); - tocopy = min(tocopy,session->bufsize - (size_t) (*ppos)); + tocopy = min(tocopy, session->bufsize - (size_t) (*ppos)); if (copy_to_user(buff, session->response + (*ppos), tocopy)) { - up(&session->mutex); + mutex_unlock(&session->mutex); return -EFAULT; } - up(&session->mutex); + mutex_unlock(&session->mutex); *ppos += tocopy; return tocopy; } static ssize_t -vmcp_write(struct file *file, const char __user * buff, size_t count, - loff_t * ppos) +vmcp_write(struct file *file, const char __user *buff, size_t count, + loff_t *ppos) { char *cmd; struct vmcp_session *session; @@ -103,24 +105,23 @@ vmcp_write(struct file *file, const char __user * buff, size_t count, } cmd[count] = '\0'; session = (struct vmcp_session *)file->private_data; - if (down_interruptible(&session->mutex)) { + if (mutex_lock_interruptible(&session->mutex)) { kfree(cmd); return -ERESTARTSYS; } if (!session->response) session->response = (char *)__get_free_pages(GFP_KERNEL - | __GFP_REPEAT | GFP_DMA, + | __GFP_REPEAT | GFP_DMA, get_order(session->bufsize)); if (!session->response) { - up(&session->mutex); + mutex_unlock(&session->mutex); kfree(cmd); return -ENOMEM; } debug_text_event(vmcp_debug, 1, cmd); - session->resp_size = cpcmd(cmd, session->response, - session->bufsize, - &session->resp_code); - up(&session->mutex); + session->resp_size = cpcmd(cmd, session->response, session->bufsize, + &session->resp_code); + mutex_unlock(&session->mutex); kfree(cmd); *ppos = 0; /* reset the file pointer after a command */ return count; @@ -145,12 +146,12 @@ static long vmcp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) int temp; session = (struct vmcp_session *)file->private_data; - if (down_interruptible(&session->mutex)) + if (mutex_lock_interruptible(&session->mutex)) return -ERESTARTSYS; switch (cmd) { case VMCP_GETCODE: temp = session->resp_code; - up(&session->mutex); + mutex_unlock(&session->mutex); return put_user(temp, (int __user *)arg); case VMCP_SETBUF: free_pages((unsigned long)session->response, @@ -161,14 +162,14 @@ static long vmcp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) session->bufsize = PAGE_SIZE; temp = -EINVAL; } - up(&session->mutex); + mutex_unlock(&session->mutex); return temp; case VMCP_GETSIZE: temp = session->resp_size; - up(&session->mutex); + mutex_unlock(&session->mutex); return put_user(temp, (int __user *)arg); default: - up(&session->mutex); + mutex_unlock(&session->mutex); return -ENOIOCTLCMD; } } @@ -180,7 +181,7 @@ static const struct file_operations vmcp_fops = { .read = vmcp_read, .write = vmcp_write, .unlocked_ioctl = vmcp_ioctl, - .compat_ioctl = vmcp_ioctl + .compat_ioctl = vmcp_ioctl, }; static struct miscdevice vmcp_dev = { @@ -194,26 +195,38 @@ static int __init vmcp_init(void) int ret; if (!MACHINE_IS_VM) { - printk(KERN_WARNING - "z/VM CP interface is only available under z/VM\n"); + PRINT_WARN("z/VM CP interface is only available under z/VM\n"); return -ENODEV; } - ret = misc_register(&vmcp_dev); - if (!ret) - printk(KERN_INFO "z/VM CP interface loaded\n"); - else - printk(KERN_WARNING - "z/VM CP interface not loaded. Could not register misc device.\n"); vmcp_debug = debug_register("vmcp", 1, 1, 240); - debug_register_view(vmcp_debug, &debug_hex_ascii_view); - return ret; + if (!vmcp_debug) { + PRINT_ERR("z/VM CP interface not loaded. Could not register " + "debug feature\n"); + return -ENOMEM; + } + ret = debug_register_view(vmcp_debug, &debug_hex_ascii_view); + if (ret) { + PRINT_ERR("z/VM CP interface not loaded. Could not register " + "debug feature view. Error code: %d\n", ret); + debug_unregister(vmcp_debug); + return ret; + } + ret = misc_register(&vmcp_dev); + if (ret) { + PRINT_ERR("z/VM CP interface not loaded. Could not register " + "misc device. Error code: %d\n", ret); + debug_unregister(vmcp_debug); + return ret; + } + PRINT_INFO("z/VM CP interface loaded\n"); + return 0; } static void __exit vmcp_exit(void) { - WARN_ON(misc_deregister(&vmcp_dev) != 0); + misc_deregister(&vmcp_dev); debug_unregister(vmcp_debug); - printk(KERN_INFO "z/VM CP interface unloaded.\n"); + PRINT_INFO("z/VM CP interface unloaded.\n"); } module_init(vmcp_init); diff --git a/drivers/s390/char/vmcp.h b/drivers/s390/char/vmcp.h index 8a5975f3dad7..6a993948e188 100644 --- a/drivers/s390/char/vmcp.h +++ b/drivers/s390/char/vmcp.h @@ -12,8 +12,8 @@ * The idea of this driver is based on cpint from Neale Ferguson */ -#include <asm/semaphore.h> #include <linux/ioctl.h> +#include <linux/mutex.h> #define VMCP_GETCODE _IOR(0x10, 1, int) #define VMCP_SETBUF _IOW(0x10, 2, int) @@ -26,5 +26,5 @@ struct vmcp_session { int resp_code; /* As we use copy_from/to_user, which might * * sleep and cannot use a spinlock */ - struct semaphore mutex; + struct mutex mutex; }; diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c new file mode 100644 index 000000000000..e90b0f846195 --- /dev/null +++ b/drivers/s390/char/vmur.c @@ -0,0 +1,906 @@ +/* + * Linux driver for System z and s390 unit record devices + * (z/VM virtual punch, reader, printer) + * + * Copyright IBM Corp. 2001, 2007 + * Authors: Malcolm Beattie <beattiem@uk.ibm.com> + * Michael Holzheu <holzheu@de.ibm.com> + * Frank Munzert <munzert@de.ibm.com> + */ + +#include <linux/cdev.h> + +#include <asm/uaccess.h> +#include <asm/cio.h> +#include <asm/ccwdev.h> +#include <asm/debug.h> + +#include "vmur.h" + +/* + * Driver overview + * + * Unit record device support is implemented as a character device driver. + * We can fit at least 16 bits into a device minor number and use the + * simple method of mapping a character device number with minor abcd + * to the unit record device with devno abcd. + * I/O to virtual unit record devices is handled as follows: + * Reads: Diagnose code 0x14 (input spool file manipulation) + * is used to read spool data page-wise. + * Writes: The CCW used is WRITE_CCW_CMD (0x01). The device's record length + * is available by reading sysfs attr reclen. Each write() to the device + * must specify an integral multiple (maximal 511) of reclen. + */ + +static char ur_banner[] = "z/VM virtual unit record device driver"; + +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("s390 z/VM virtual unit record device driver"); +MODULE_LICENSE("GPL"); + +#define PRINTK_HEADER "vmur: " + +static dev_t ur_first_dev_maj_min; +static struct class *vmur_class; +static struct debug_info *vmur_dbf; + +/* We put the device's record length (for writes) in the driver_info field */ +static struct ccw_device_id ur_ids[] = { + { CCWDEV_CU_DI(READER_PUNCH_DEVTYPE, 80) }, + { CCWDEV_CU_DI(PRINTER_DEVTYPE, 132) }, + { /* end of list */ } +}; + +MODULE_DEVICE_TABLE(ccw, ur_ids); + +static int ur_probe(struct ccw_device *cdev); +static void ur_remove(struct ccw_device *cdev); +static int ur_set_online(struct ccw_device *cdev); +static int ur_set_offline(struct ccw_device *cdev); + +static struct ccw_driver ur_driver = { + .name = "vmur", + .owner = THIS_MODULE, + .ids = ur_ids, + .probe = ur_probe, + .remove = ur_remove, + .set_online = ur_set_online, + .set_offline = ur_set_offline, +}; + +/* + * Allocation, freeing, getting and putting of urdev structures + */ +static struct urdev *urdev_alloc(struct ccw_device *cdev) +{ + struct urdev *urd; + + urd = kzalloc(sizeof(struct urdev), GFP_KERNEL); + if (!urd) + return NULL; + urd->cdev = cdev; + urd->reclen = cdev->id.driver_info; + ccw_device_get_id(cdev, &urd->dev_id); + mutex_init(&urd->io_mutex); + mutex_init(&urd->open_mutex); + return urd; +} + +static void urdev_free(struct urdev *urd) +{ + kfree(urd); +} + +/* + * This is how the character device driver gets a reference to a + * ur device. When this call returns successfully, a reference has + * been taken (by get_device) on the underlying kobject. The recipient + * of this urdev pointer must eventually drop it with urdev_put(urd) + * which does the corresponding put_device(). + */ +static struct urdev *urdev_get_from_devno(u16 devno) +{ + char bus_id[16]; + struct ccw_device *cdev; + + sprintf(bus_id, "0.0.%04x", devno); + cdev = get_ccwdev_by_busid(&ur_driver, bus_id); + if (!cdev) + return NULL; + + return cdev->dev.driver_data; +} + +static void urdev_put(struct urdev *urd) +{ + put_device(&urd->cdev->dev); +} + +/* + * Low-level functions to do I/O to a ur device. + * alloc_chan_prog + * do_ur_io + * ur_int_handler + * + * alloc_chan_prog allocates and builds the channel program + * + * do_ur_io issues the channel program to the device and blocks waiting + * on a completion event it publishes at urd->io_done. The function + * serialises itself on the device's mutex so that only one I/O + * is issued at a time (and that I/O is synchronous). + * + * ur_int_handler catches the "I/O done" interrupt, writes the + * subchannel status word into the scsw member of the urdev structure + * and complete()s the io_done to wake the waiting do_ur_io. + * + * The caller of do_ur_io is responsible for kfree()ing the channel program + * address pointer that alloc_chan_prog returned. + */ + + +/* + * alloc_chan_prog + * The channel program we use is write commands chained together + * with a final NOP CCW command-chained on (which ensures that CE and DE + * are presented together in a single interrupt instead of as separate + * interrupts unless an incorrect length indication kicks in first). The + * data length in each CCW is reclen. The caller must ensure that count + * is an integral multiple of reclen. + * The channel program pointer returned by this function must be freed + * with kfree. The caller is responsible for checking that + * count/reclen is not ridiculously large. + */ +static struct ccw1 *alloc_chan_prog(char *buf, size_t count, size_t reclen) +{ + size_t num_ccws; + struct ccw1 *cpa; + int i; + + TRACE("alloc_chan_prog(%p, %zu, %zu)\n", buf, count, reclen); + + /* + * We chain a NOP onto the writes to force CE+DE together. + * That means we allocate room for CCWs to cover count/reclen + * records plus a NOP. + */ + num_ccws = count / reclen + 1; + cpa = kmalloc(num_ccws * sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); + if (!cpa) + return NULL; + + for (i = 0; count; i++) { + cpa[i].cmd_code = WRITE_CCW_CMD; + cpa[i].flags = CCW_FLAG_CC | CCW_FLAG_SLI; + cpa[i].count = reclen; + cpa[i].cda = __pa(buf); + buf += reclen; + count -= reclen; + } + /* The following NOP CCW forces CE+DE to be presented together */ + cpa[i].cmd_code = CCW_CMD_NOOP; + cpa[i].flags = 0; + cpa[i].count = 0; + cpa[i].cda = 0; + + return cpa; +} + +static int do_ur_io(struct urdev *urd, struct ccw1 *cpa) +{ + int rc; + struct ccw_device *cdev = urd->cdev; + DECLARE_COMPLETION(event); + + TRACE("do_ur_io: cpa=%p\n", cpa); + + rc = mutex_lock_interruptible(&urd->io_mutex); + if (rc) + return rc; + + urd->io_done = &event; + + spin_lock_irq(get_ccwdev_lock(cdev)); + rc = ccw_device_start(cdev, cpa, 1, 0, 0); + spin_unlock_irq(get_ccwdev_lock(cdev)); + + TRACE("do_ur_io: ccw_device_start returned %d\n", rc); + if (rc) + goto out; + + wait_for_completion(&event); + TRACE("do_ur_io: I/O complete\n"); + rc = 0; + +out: + mutex_unlock(&urd->io_mutex); + return rc; +} + +/* + * ur interrupt handler, called from the ccw_device layer + */ +static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm, + struct irb *irb) +{ + struct urdev *urd; + + TRACE("ur_int_handler: intparm=0x%lx cstat=%02x dstat=%02x res=%u\n", + intparm, irb->scsw.cstat, irb->scsw.dstat, irb->scsw.count); + + if (!intparm) { + TRACE("ur_int_handler: unsolicited interrupt\n"); + return; + } + urd = cdev->dev.driver_data; + /* On special conditions irb is an error pointer */ + if (IS_ERR(irb)) + urd->io_request_rc = PTR_ERR(irb); + else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) + urd->io_request_rc = 0; + else + urd->io_request_rc = -EIO; + + complete(urd->io_done); +} + +/* + * reclen sysfs attribute - The record length to be used for write CCWs + */ +static ssize_t ur_attr_reclen_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct urdev *urd = dev->driver_data; + + return sprintf(buf, "%zu\n", urd->reclen); +} + +static DEVICE_ATTR(reclen, 0444, ur_attr_reclen_show, NULL); + +static int ur_create_attributes(struct device *dev) +{ + return device_create_file(dev, &dev_attr_reclen); +} + +static void ur_remove_attributes(struct device *dev) +{ + device_remove_file(dev, &dev_attr_reclen); +} + +/* + * diagnose code 0x210 - retrieve device information + * cc=0 normal completion, we have a real device + * cc=1 CP paging error + * cc=2 The virtual device exists, but is not associated with a real device + * cc=3 Invalid device address, or the virtual device does not exist + */ +static int get_urd_class(struct urdev *urd) +{ + static struct diag210 ur_diag210; + int cc; + + ur_diag210.vrdcdvno = urd->dev_id.devno; + ur_diag210.vrdclen = sizeof(struct diag210); + + cc = diag210(&ur_diag210); + switch (cc) { + case 0: + return -ENOTSUPP; + case 2: + return ur_diag210.vrdcvcla; /* virtual device class */ + case 3: + return -ENODEV; + default: + return -EIO; + } +} + +/* + * Allocation and freeing of urfile structures + */ +static struct urfile *urfile_alloc(struct urdev *urd) +{ + struct urfile *urf; + + urf = kzalloc(sizeof(struct urfile), GFP_KERNEL); + if (!urf) + return NULL; + urf->urd = urd; + + TRACE("urfile_alloc: urd=%p urf=%p rl=%zu\n", urd, urf, + urf->dev_reclen); + + return urf; +} + +static void urfile_free(struct urfile *urf) +{ + TRACE("urfile_free: urf=%p urd=%p\n", urf, urf->urd); + kfree(urf); +} + +/* + * The fops implementation of the character device driver + */ +static ssize_t do_write(struct urdev *urd, const char __user *udata, + size_t count, size_t reclen, loff_t *ppos) +{ + struct ccw1 *cpa; + char *buf; + int rc; + + /* Data buffer must be under 2GB line for fmt1 CCWs: hence GFP_DMA */ + buf = kmalloc(count, GFP_KERNEL | GFP_DMA); + if (!buf) + return -ENOMEM; + + if (copy_from_user(buf, udata, count)) { + rc = -EFAULT; + goto fail_kfree_buf; + } + + cpa = alloc_chan_prog(buf, count, reclen); + if (!cpa) { + rc = -ENOMEM; + goto fail_kfree_buf; + } + + rc = do_ur_io(urd, cpa); + if (rc) + goto fail_kfree_cpa; + + if (urd->io_request_rc) { + rc = urd->io_request_rc; + goto fail_kfree_cpa; + } + *ppos += count; + rc = count; +fail_kfree_cpa: + kfree(cpa); +fail_kfree_buf: + kfree(buf); + return rc; +} + +static ssize_t ur_write(struct file *file, const char __user *udata, + size_t count, loff_t *ppos) +{ + struct urfile *urf = file->private_data; + + TRACE("ur_write: count=%zu\n", count); + + if (count == 0) + return 0; + + if (count % urf->dev_reclen) + return -EINVAL; /* count must be a multiple of reclen */ + + if (count > urf->dev_reclen * MAX_RECS_PER_IO) + count = urf->dev_reclen * MAX_RECS_PER_IO; + + return do_write(urf->urd, udata, count, urf->dev_reclen, ppos); +} + +static int do_diag_14(unsigned long rx, unsigned long ry1, + unsigned long subcode) +{ + register unsigned long _ry1 asm("2") = ry1; + register unsigned long _ry2 asm("3") = subcode; + int rc = 0; + + asm volatile( +#ifdef CONFIG_64BIT + " sam31\n" + " diag %2,2,0x14\n" + " sam64\n" +#else + " diag %2,2,0x14\n" +#endif + " ipm %0\n" + " srl %0,28\n" + : "=d" (rc), "+d" (_ry2) + : "d" (rx), "d" (_ry1) + : "cc"); + + TRACE("diag 14: subcode=0x%lx, cc=%i\n", subcode, rc); + return rc; +} + +/* + * diagnose code 0x14 subcode 0x0028 - position spool file to designated + * record + * cc=0 normal completion + * cc=2 no file active on the virtual reader or device not ready + * cc=3 record specified is beyond EOF + */ +static int diag_position_to_record(int devno, int record) +{ + int cc; + + cc = do_diag_14(record, devno, 0x28); + switch (cc) { + case 0: + return 0; + case 2: + return -ENOMEDIUM; + case 3: + return -ENODATA; /* position beyond end of file */ + default: + return -EIO; + } +} + +/* + * diagnose code 0x14 subcode 0x0000 - read next spool file buffer + * cc=0 normal completion + * cc=1 EOF reached + * cc=2 no file active on the virtual reader, and no file eligible + * cc=3 file already active on the virtual reader or specified virtual + * reader does not exist or is not a reader + */ +static int diag_read_file(int devno, char *buf) +{ + int cc; + + cc = do_diag_14((unsigned long) buf, devno, 0x00); + switch (cc) { + case 0: + return 0; + case 1: + return -ENODATA; + case 2: + return -ENOMEDIUM; + default: + return -EIO; + } +} + +static ssize_t diag14_read(struct file *file, char __user *ubuf, size_t count, + loff_t *offs) +{ + size_t len, copied, res; + char *buf; + int rc; + u16 reclen; + struct urdev *urd; + + urd = ((struct urfile *) file->private_data)->urd; + reclen = ((struct urfile *) file->private_data)->file_reclen; + + rc = diag_position_to_record(urd->dev_id.devno, *offs / PAGE_SIZE + 1); + if (rc == -ENODATA) + return 0; + if (rc) + return rc; + + len = min((size_t) PAGE_SIZE, count); + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + copied = 0; + res = (size_t) (*offs % PAGE_SIZE); + do { + rc = diag_read_file(urd->dev_id.devno, buf); + if (rc == -ENODATA) { + break; + } + if (rc) + goto fail; + if (reclen) + *((u16 *) &buf[FILE_RECLEN_OFFSET]) = reclen; + len = min(count - copied, PAGE_SIZE - res); + if (copy_to_user(ubuf + copied, buf + res, len)) { + rc = -EFAULT; + goto fail; + } + res = 0; + copied += len; + } while (copied != count); + + *offs += copied; + rc = copied; +fail: + kfree(buf); + return rc; +} + +static ssize_t ur_read(struct file *file, char __user *ubuf, size_t count, + loff_t *offs) +{ + struct urdev *urd; + int rc; + + TRACE("ur_read: count=%zu ppos=%li\n", count, (unsigned long) *offs); + + if (count == 0) + return 0; + + urd = ((struct urfile *) file->private_data)->urd; + rc = mutex_lock_interruptible(&urd->io_mutex); + if (rc) + return rc; + rc = diag14_read(file, ubuf, count, offs); + mutex_unlock(&urd->io_mutex); + return rc; +} + +/* + * diagnose code 0x14 subcode 0x0fff - retrieve next file descriptor + * cc=0 normal completion + * cc=1 no files on reader queue or no subsequent file + * cc=2 spid specified is invalid + */ +static int diag_read_next_file_info(struct file_control_block *buf, int spid) +{ + int cc; + + cc = do_diag_14((unsigned long) buf, spid, 0xfff); + switch (cc) { + case 0: + return 0; + default: + return -ENODATA; + } +} + +static int verify_device(struct urdev *urd) +{ + struct file_control_block fcb; + char *buf; + int rc; + + switch (urd->class) { + case DEV_CLASS_UR_O: + return 0; /* no check needed here */ + case DEV_CLASS_UR_I: + /* check for empty reader device (beginning of chain) */ + rc = diag_read_next_file_info(&fcb, 0); + if (rc) + return rc; + + /* open file on virtual reader */ + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + rc = diag_read_file(urd->dev_id.devno, buf); + kfree(buf); + + if ((rc != 0) && (rc != -ENODATA)) /* EOF does not hurt */ + return rc; + return 0; + default: + return -ENOTSUPP; + } +} + +static int get_file_reclen(struct urdev *urd) +{ + struct file_control_block fcb; + int rc; + + switch (urd->class) { + case DEV_CLASS_UR_O: + return 0; + case DEV_CLASS_UR_I: + rc = diag_read_next_file_info(&fcb, 0); + if (rc) + return rc; + break; + default: + return -ENOTSUPP; + } + if (fcb.file_stat & FLG_CP_DUMP) + return 0; + + return fcb.rec_len; +} + +static int ur_open(struct inode *inode, struct file *file) +{ + u16 devno; + struct urdev *urd; + struct urfile *urf; + unsigned short accmode; + int rc; + + accmode = file->f_flags & O_ACCMODE; + + if (accmode == O_RDWR) + return -EACCES; + + /* + * We treat the minor number as the devno of the ur device + * to find in the driver tree. + */ + devno = MINOR(file->f_dentry->d_inode->i_rdev); + + urd = urdev_get_from_devno(devno); + if (!urd) + return -ENXIO; + + if (file->f_flags & O_NONBLOCK) { + if (!mutex_trylock(&urd->open_mutex)) { + rc = -EBUSY; + goto fail_put; + } + } else { + if (mutex_lock_interruptible(&urd->open_mutex)) { + rc = -ERESTARTSYS; + goto fail_put; + } + } + + TRACE("ur_open\n"); + + if (((accmode == O_RDONLY) && (urd->class != DEV_CLASS_UR_I)) || + ((accmode == O_WRONLY) && (urd->class != DEV_CLASS_UR_O))) { + TRACE("ur_open: unsupported dev class (%d)\n", urd->class); + rc = -EACCES; + goto fail_unlock; + } + + rc = verify_device(urd); + if (rc) + goto fail_unlock; + + urf = urfile_alloc(urd); + if (!urf) { + rc = -ENOMEM; + goto fail_unlock; + } + + urf->dev_reclen = urd->reclen; + rc = get_file_reclen(urd); + if (rc < 0) + goto fail_urfile_free; + urf->file_reclen = rc; + file->private_data = urf; + return 0; + +fail_urfile_free: + urfile_free(urf); +fail_unlock: + mutex_unlock(&urd->open_mutex); +fail_put: + urdev_put(urd); + return rc; +} + +static int ur_release(struct inode *inode, struct file *file) +{ + struct urfile *urf = file->private_data; + + TRACE("ur_release\n"); + mutex_unlock(&urf->urd->open_mutex); + urdev_put(urf->urd); + urfile_free(urf); + return 0; +} + +static loff_t ur_llseek(struct file *file, loff_t offset, int whence) +{ + loff_t newpos; + + if ((file->f_flags & O_ACCMODE) != O_RDONLY) + return -ESPIPE; /* seek allowed only for reader */ + if (offset % PAGE_SIZE) + return -ESPIPE; /* only multiples of 4K allowed */ + switch (whence) { + case 0: /* SEEK_SET */ + newpos = offset; + break; + case 1: /* SEEK_CUR */ + newpos = file->f_pos + offset; + break; + default: + return -EINVAL; + } + file->f_pos = newpos; + return newpos; +} + +static struct file_operations ur_fops = { + .owner = THIS_MODULE, + .open = ur_open, + .release = ur_release, + .read = ur_read, + .write = ur_write, + .llseek = ur_llseek, +}; + +/* + * ccw_device infrastructure: + * ur_probe gets its own ref to the device (i.e. get_device), + * creates the struct urdev, the device attributes, sets up + * the interrupt handler and validates the virtual unit record device. + * ur_remove removes the device attributes, frees the struct urdev + * and drops (put_device) the ref to the device we got in ur_probe. + */ +static int ur_probe(struct ccw_device *cdev) +{ + struct urdev *urd; + int rc; + + TRACE("ur_probe: cdev=%p state=%d\n", cdev, *(int *) cdev->private); + + if (!get_device(&cdev->dev)) + return -ENODEV; + + urd = urdev_alloc(cdev); + if (!urd) { + rc = -ENOMEM; + goto fail; + } + rc = ur_create_attributes(&cdev->dev); + if (rc) { + rc = -ENOMEM; + goto fail; + } + cdev->dev.driver_data = urd; + cdev->handler = ur_int_handler; + + /* validate virtual unit record device */ + urd->class = get_urd_class(urd); + if (urd->class < 0) { + rc = urd->class; + goto fail; + } + if ((urd->class != DEV_CLASS_UR_I) && (urd->class != DEV_CLASS_UR_O)) { + rc = -ENOTSUPP; + goto fail; + } + + return 0; + +fail: + urdev_free(urd); + put_device(&cdev->dev); + return rc; +} + +static void ur_remove(struct ccw_device *cdev) +{ + struct urdev *urd = cdev->dev.driver_data; + + TRACE("ur_remove\n"); + if (cdev->online) + ur_set_offline(cdev); + ur_remove_attributes(&cdev->dev); + urdev_free(urd); + put_device(&cdev->dev); +} + +static int ur_set_online(struct ccw_device *cdev) +{ + struct urdev *urd; + int minor, major, rc; + char node_id[16]; + + TRACE("ur_set_online: cdev=%p state=%d\n", cdev, + *(int *) cdev->private); + + if (!try_module_get(ur_driver.owner)) + return -EINVAL; + + urd = (struct urdev *) cdev->dev.driver_data; + minor = urd->dev_id.devno; + major = MAJOR(ur_first_dev_maj_min); + + urd->char_device = cdev_alloc(); + if (!urd->char_device) { + rc = -ENOMEM; + goto fail_module_put; + } + + cdev_init(urd->char_device, &ur_fops); + urd->char_device->dev = MKDEV(major, minor); + urd->char_device->owner = ur_fops.owner; + + rc = cdev_add(urd->char_device, urd->char_device->dev, 1); + if (rc) + goto fail_free_cdev; + if (urd->cdev->id.cu_type == READER_PUNCH_DEVTYPE) { + if (urd->class == DEV_CLASS_UR_I) + sprintf(node_id, "vmrdr-%s", cdev->dev.bus_id); + if (urd->class == DEV_CLASS_UR_O) + sprintf(node_id, "vmpun-%s", cdev->dev.bus_id); + } else if (urd->cdev->id.cu_type == PRINTER_DEVTYPE) { + sprintf(node_id, "vmprt-%s", cdev->dev.bus_id); + } else { + rc = -ENOTSUPP; + goto fail_free_cdev; + } + + urd->device = device_create(vmur_class, NULL, urd->char_device->dev, + "%s", node_id); + if (IS_ERR(urd->device)) { + rc = PTR_ERR(urd->device); + TRACE("ur_set_online: device_create rc=%d\n", rc); + goto fail_free_cdev; + } + + return 0; + +fail_free_cdev: + cdev_del(urd->char_device); +fail_module_put: + module_put(ur_driver.owner); + + return rc; +} + +static int ur_set_offline(struct ccw_device *cdev) +{ + struct urdev *urd; + + TRACE("ur_set_offline: cdev=%p cdev->private=%p state=%d\n", + cdev, cdev->private, *(int *) cdev->private); + urd = (struct urdev *) cdev->dev.driver_data; + device_destroy(vmur_class, urd->char_device->dev); + cdev_del(urd->char_device); + module_put(ur_driver.owner); + + return 0; +} + +/* + * Module initialisation and cleanup + */ +static int __init ur_init(void) +{ + int rc; + dev_t dev; + + if (!MACHINE_IS_VM) { + PRINT_ERR("%s is only available under z/VM.\n", ur_banner); + return -ENODEV; + } + + vmur_dbf = debug_register("vmur", 4, 1, 4 * sizeof(long)); + if (!vmur_dbf) + return -ENOMEM; + rc = debug_register_view(vmur_dbf, &debug_sprintf_view); + if (rc) + goto fail_free_dbf; + + debug_set_level(vmur_dbf, 6); + + rc = ccw_driver_register(&ur_driver); + if (rc) + goto fail_free_dbf; + + rc = alloc_chrdev_region(&dev, 0, NUM_MINORS, "vmur"); + if (rc) { + PRINT_ERR("alloc_chrdev_region failed: err = %d\n", rc); + goto fail_unregister_driver; + } + ur_first_dev_maj_min = MKDEV(MAJOR(dev), 0); + + vmur_class = class_create(THIS_MODULE, "vmur"); + if (IS_ERR(vmur_class)) { + rc = PTR_ERR(vmur_class); + goto fail_unregister_region; + } + PRINT_INFO("%s loaded.\n", ur_banner); + return 0; + +fail_unregister_region: + unregister_chrdev_region(ur_first_dev_maj_min, NUM_MINORS); +fail_unregister_driver: + ccw_driver_unregister(&ur_driver); +fail_free_dbf: + debug_unregister(vmur_dbf); + return rc; +} + +static void __exit ur_exit(void) +{ + class_destroy(vmur_class); + unregister_chrdev_region(ur_first_dev_maj_min, NUM_MINORS); + ccw_driver_unregister(&ur_driver); + debug_unregister(vmur_dbf); + PRINT_INFO("%s unloaded.\n", ur_banner); +} + +module_init(ur_init); +module_exit(ur_exit); diff --git a/drivers/s390/char/vmur.h b/drivers/s390/char/vmur.h new file mode 100644 index 000000000000..16d0a4e38e40 --- /dev/null +++ b/drivers/s390/char/vmur.h @@ -0,0 +1,104 @@ +/* + * Linux driver for System z and s390 unit record devices + * (z/VM virtual punch, reader, printer) + * + * Copyright IBM Corp. 2001, 2007 + * Authors: Malcolm Beattie <beattiem@uk.ibm.com> + * Michael Holzheu <holzheu@de.ibm.com> + * Frank Munzert <munzert@de.ibm.com> + */ + +#ifndef _VMUR_H_ +#define _VMUR_H_ + +#define DEV_CLASS_UR_I 0x20 /* diag210 unit record input device class */ +#define DEV_CLASS_UR_O 0x10 /* diag210 unit record output device class */ +/* + * we only support z/VM's default unit record devices: + * both in SPOOL directory control statement and in CP DEFINE statement + * RDR defaults to 2540 reader + * PUN defaults to 2540 punch + * PRT defaults to 1403 printer + */ +#define READER_PUNCH_DEVTYPE 0x2540 +#define PRINTER_DEVTYPE 0x1403 + +/* z/VM spool file control block SFBLOK */ +struct file_control_block { + char reserved_1[8]; + char user_owner[8]; + char user_orig[8]; + __s32 data_recs; + __s16 rec_len; + __s16 file_num; + __u8 file_stat; + __u8 dev_type; + char reserved_2[6]; + char file_name[12]; + char file_type[12]; + char create_date[8]; + char create_time[8]; + char reserved_3[6]; + __u8 file_class; + __u8 sfb_lok; + __u64 distr_code; + __u32 reserved_4; + __u8 current_starting_copy_number; + __u8 sfblock_cntrl_flags; + __u8 reserved_5; + __u8 more_status_flags; + char rest[200]; +} __attribute__ ((packed)); + +#define FLG_CP_DUMP 0x10 + +/* + * A struct urdev is created for each ur device that is made available + * via the ccw_device driver model. + */ +struct urdev { + struct ccw_device *cdev; /* Backpointer to ccw device */ + struct mutex io_mutex; /* Serialises device IO */ + struct mutex open_mutex; /* Serialises access to device */ + struct completion *io_done; /* do_ur_io waits; irq completes */ + struct device *device; + struct cdev *char_device; + struct ccw_dev_id dev_id; /* device id */ + size_t reclen; /* Record length for *write* CCWs */ + int class; /* VM device class */ + int io_request_rc; /* return code from I/O request */ +}; + +/* + * A struct urfile is allocated at open() time for each device and + * freed on release(). + */ +struct urfile { + struct urdev *urd; + unsigned int flags; + size_t dev_reclen; + __u16 file_reclen; +}; + +/* + * Device major/minor definitions. + */ + +#define UR_MAJOR 0 /* get dynamic major */ +/* + * We map minor numbers directly to device numbers (0-FFFF) for simplicity. + * This avoids having to allocate (and manage) slot numbers. + */ +#define NUM_MINORS 65536 + +/* Limiting each I/O to 511 records limits chan prog to 4KB (511 r/w + 1 NOP) */ +#define MAX_RECS_PER_IO 511 +#define WRITE_CCW_CMD 0x01 + +#define TRACE(x...) debug_sprintf_event(vmur_dbf, 1, x) +#define CCWDEV_CU_DI(cutype, di) \ + CCW_DEVICE(cutype, 0x00), .driver_info = (di) + +#define FILE_RECLEN_OFFSET 4064 /* reclen offset in spool data block */ + +#endif /* _VMUR_H_ */ diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 6b264bdb5bfb..001682e70f67 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -272,7 +272,7 @@ modalias_show (struct device *dev, struct device_attribute *attr, char *buf) struct ccw_device_id *id = &(cdev->id); int len; - len = snprint_alias(buf, PAGE_SIZE, id, "\n") + 1; + len = snprint_alias(buf, PAGE_SIZE, id, "\n"); return len > PAGE_SIZE ? PAGE_SIZE : len; } diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index e70aeb7a3781..ed026a1dc324 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -166,9 +166,9 @@ qdio_check_ccq(struct qdio_q *q, unsigned int ccq) { char dbf_text[15]; - if (ccq == 0 || ccq == 32 || ccq == 96) + if (ccq == 0 || ccq == 32) return 0; - if (ccq == 97) + if (ccq == 96 || ccq == 97) return 1; /*notify devices immediately*/ sprintf(dbf_text,"%d", ccq); @@ -2306,8 +2306,8 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr) if (!ssqd_area) { QDIO_PRINT_WARN("Could not get memory for chsc. Using all " \ "SIGAs for sch x%x.\n", irq_ptr->schid.sch_no); - irq_ptr->qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY || - CHSC_FLAG_SIGA_OUTPUT_NECESSARY || + irq_ptr->qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY | + CHSC_FLAG_SIGA_OUTPUT_NECESSARY | CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */ irq_ptr->is_qebsm = 0; irq_ptr->sch_token = 0; @@ -2328,8 +2328,8 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr) QDIO_PRINT_WARN("CHSC returned cc %i. Using all " \ "SIGAs for sch 0.%x.%x.\n", result, irq_ptr->schid.ssid, irq_ptr->schid.sch_no); - qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY || - CHSC_FLAG_SIGA_OUTPUT_NECESSARY || + qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY | + CHSC_FLAG_SIGA_OUTPUT_NECESSARY | CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */ irq_ptr->is_qebsm = 0; goto out; @@ -2340,8 +2340,8 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr) "is 0x%x. Using all SIGAs for sch 0.%x.%x.\n", ssqd_area->response.code, irq_ptr->schid.ssid, irq_ptr->schid.sch_no); - qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY || - CHSC_FLAG_SIGA_OUTPUT_NECESSARY || + qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY | + CHSC_FLAG_SIGA_OUTPUT_NECESSARY | CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */ irq_ptr->is_qebsm = 0; goto out; diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index 348bb7b82771..023455a0b34a 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -317,8 +317,8 @@ claw_probe(struct ccwgroup_device *cgdev) CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); return -ENOMEM; } - privptr->p_mtc_envelope= kmalloc( MAX_ENVELOPE_SIZE, GFP_KERNEL); - privptr->p_env = kmalloc(sizeof(struct claw_env), GFP_KERNEL); + privptr->p_mtc_envelope= kzalloc( MAX_ENVELOPE_SIZE, GFP_KERNEL); + privptr->p_env = kzalloc(sizeof(struct claw_env), GFP_KERNEL); if ((privptr->p_mtc_envelope==NULL) || (privptr->p_env==NULL)) { probe_error(cgdev); put_device(&cgdev->dev); @@ -327,8 +327,6 @@ claw_probe(struct ccwgroup_device *cgdev) CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); return -ENOMEM; } - memset(privptr->p_mtc_envelope, 0x00, MAX_ENVELOPE_SIZE); - memset(privptr->p_env, 0x00, sizeof(struct claw_env)); memcpy(privptr->p_env->adapter_name,WS_NAME_NOT_DEF,8); memcpy(privptr->p_env->host_name,WS_NAME_NOT_DEF,8); memcpy(privptr->p_env->api_type,WS_NAME_NOT_DEF,8); @@ -3924,7 +3922,7 @@ add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr) snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", cdev->dev.bus_id); ccw_device_get_id(cdev, &dev_id); p_ch->devno = dev_id.devno; - if ((p_ch->irb = kmalloc(sizeof (struct irb),GFP_KERNEL)) == NULL) { + if ((p_ch->irb = kzalloc(sizeof (struct irb),GFP_KERNEL)) == NULL) { printk(KERN_WARNING "%s Out of memory in %s for irb\n", p_ch->id,__FUNCTION__); #ifdef FUNCTRACE @@ -3933,7 +3931,6 @@ add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr) #endif return -ENOMEM; } - memset(p_ch->irb, 0, sizeof (struct irb)); #ifdef FUNCTRACE printk(KERN_INFO "%s:%s Exit on line %d\n", cdev->dev.bus_id,__FUNCTION__,__LINE__); diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c index a54e4140683a..e821a155b658 100644 --- a/drivers/sbus/char/bbc_envctrl.c +++ b/drivers/sbus/char/bbc_envctrl.c @@ -7,6 +7,7 @@ #include <linux/kthread.h> #include <linux/delay.h> #include <linux/kmod.h> +#include <linux/reboot.h> #include <asm/oplib.h> #include <asm/ebus.h> @@ -170,8 +171,6 @@ static void get_current_temps(struct bbc_cpu_temperature *tp) static void do_envctrl_shutdown(struct bbc_cpu_temperature *tp) { static int shutting_down = 0; - static char *envp[] = { "HOME=/", "TERM=linux", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL }; - char *argv[] = { "/sbin/shutdown", "-h", "now", NULL }; char *type = "???"; s8 val = -1; @@ -195,7 +194,7 @@ static void do_envctrl_shutdown(struct bbc_cpu_temperature *tp) printk(KERN_CRIT "kenvctrld: Shutting down the system now.\n"); shutting_down = 1; - if (call_usermodehelper("/sbin/shutdown", argv, envp, 0) < 0) + if (orderly_poweroff(true) < 0) printk(KERN_CRIT "envctrl: shutdown execution failed\n"); } diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c index 178155bf9db6..fbadd4d761f3 100644 --- a/drivers/sbus/char/bbc_i2c.c +++ b/drivers/sbus/char/bbc_i2c.c @@ -156,10 +156,9 @@ struct bbc_i2c_client *bbc_i2c_attach(struct linux_ebus_child *echild) if (!bp) return NULL; - client = kmalloc(sizeof(*client), GFP_KERNEL); + client = kzalloc(sizeof(*client), GFP_KERNEL); if (!client) return NULL; - memset(client, 0, sizeof(*client)); client->bp = bp; client->echild = echild; client->bus = echild->resource[0].start; diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c index 8328acab47fd..dadabef116b6 100644 --- a/drivers/sbus/char/envctrl.c +++ b/drivers/sbus/char/envctrl.c @@ -26,6 +26,7 @@ #include <linux/ioport.h> #include <linux/miscdevice.h> #include <linux/kmod.h> +#include <linux/reboot.h> #include <asm/ebus.h> #include <asm/uaccess.h> @@ -966,10 +967,6 @@ static struct i2c_child_t *envctrl_get_i2c_child(unsigned char mon_type) static void envctrl_do_shutdown(void) { static int inprog = 0; - static char *envp[] = { - "HOME=/", "TERM=linux", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL }; - char *argv[] = { - "/sbin/shutdown", "-h", "now", NULL }; int ret; if (inprog != 0) @@ -977,7 +974,7 @@ static void envctrl_do_shutdown(void) inprog = 1; printk(KERN_CRIT "kenvctrld: WARNING: Shutting down the system now.\n"); - ret = call_usermodehelper("/sbin/shutdown", argv, envp, 0); + ret = orderly_poweroff(true); if (ret < 0) { printk(KERN_CRIT "kenvctrld: WARNING: system shutdown failed!\n"); inprog = 0; /* unlikely to succeed, but we could try again */ diff --git a/drivers/sbus/char/jsflash.c b/drivers/sbus/char/jsflash.c index 512857a23169..5157a2abc58d 100644 --- a/drivers/sbus/char/jsflash.c +++ b/drivers/sbus/char/jsflash.c @@ -619,8 +619,7 @@ static void __exit jsflash_cleanup_module(void) jsf0.busy = 0; misc_deregister(&jsf_dev); - if (unregister_blkdev(JSFD_MAJOR, "jsfd") != 0) - printk("jsfd: cleanup_module failed\n"); + unregister_blkdev(JSFD_MAJOR, "jsfd"); blk_cleanup_queue(jsf_queue); } diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c index 6afc7e5df0d4..26b1d2a17ed2 100644 --- a/drivers/sbus/char/vfc_dev.c +++ b/drivers/sbus/char/vfc_dev.c @@ -656,12 +656,9 @@ static int vfc_probe(void) if (!cards) return -ENODEV; - vfc_dev_lst = kmalloc(sizeof(struct vfc_dev *) * - (cards+1), - GFP_KERNEL); + vfc_dev_lst = kcalloc(cards + 1, sizeof(struct vfc_dev*), GFP_KERNEL); if (vfc_dev_lst == NULL) return -ENOMEM; - memset(vfc_dev_lst, 0, sizeof(struct vfc_dev *) * (cards + 1)); vfc_dev_lst[cards] = NULL; ret = register_chrdev(VFC_MAJOR, vfcstr, &vfc_fops); diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index 76c09097175f..6b49f6a2524d 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -1160,13 +1160,12 @@ static int twa_initialize_device_extension(TW_Device_Extension *tw_dev) } /* Allocate event info space */ - tw_dev->event_queue[0] = kmalloc(sizeof(TW_Event) * TW_Q_LENGTH, GFP_KERNEL); + tw_dev->event_queue[0] = kcalloc(TW_Q_LENGTH, sizeof(TW_Event), GFP_KERNEL); if (!tw_dev->event_queue[0]) { TW_PRINTK(tw_dev->host, TW_DRIVER, 0x18, "Event info memory allocation failed"); goto out; } - memset(tw_dev->event_queue[0], 0, sizeof(TW_Event) * TW_Q_LENGTH); for (i = 0; i < TW_Q_LENGTH; i++) { tw_dev->event_queue[i] = (TW_Event *)((unsigned char *)tw_dev->event_queue[0] + (i * sizeof(TW_Event))); diff --git a/drivers/scsi/NCR53C9x.c b/drivers/scsi/NCR53C9x.c index 8b5334c56f0a..773d11dd9953 100644 --- a/drivers/scsi/NCR53C9x.c +++ b/drivers/scsi/NCR53C9x.c @@ -3606,11 +3606,10 @@ out: int esp_slave_alloc(struct scsi_device *SDptr) { struct esp_device *esp_dev = - kmalloc(sizeof(struct esp_device), GFP_ATOMIC); + kzalloc(sizeof(struct esp_device), GFP_ATOMIC); if (!esp_dev) return -ENOMEM; - memset(esp_dev, 0, sizeof(struct esp_device)); SDptr->hostdata = esp_dev; return 0; } diff --git a/drivers/scsi/NCR_D700.c b/drivers/scsi/NCR_D700.c index f12864abed2f..3a8089705feb 100644 --- a/drivers/scsi/NCR_D700.c +++ b/drivers/scsi/NCR_D700.c @@ -181,13 +181,12 @@ NCR_D700_probe_one(struct NCR_D700_private *p, int siop, int irq, struct Scsi_Host *host; int ret; - hostdata = kmalloc(sizeof(*hostdata), GFP_KERNEL); + hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL); if (!hostdata) { printk(KERN_ERR "NCR D700: SIOP%d: Failed to allocate host" "data, detatching\n", siop); return -ENOMEM; } - memset(hostdata, 0, sizeof(*hostdata)); if (!request_region(region, 64, "NCR_D700")) { printk(KERN_ERR "NCR D700: Failed to reserve IO region 0x%x\n", diff --git a/drivers/scsi/NCR_Q720.c b/drivers/scsi/NCR_Q720.c index 778844c3544a..a8bbdc2273b8 100644 --- a/drivers/scsi/NCR_Q720.c +++ b/drivers/scsi/NCR_Q720.c @@ -148,11 +148,10 @@ NCR_Q720_probe(struct device *dev) __u32 base_addr, mem_size; void __iomem *mem_base; - p = kmalloc(sizeof(*p), GFP_KERNEL); + p = kzalloc(sizeof(*p), GFP_KERNEL); if (!p) return -ENOMEM; - memset(p, 0, sizeof(*p)); pos2 = mca_device_read_pos(mca_dev, 2); /* enable device */ pos2 |= NCR_Q720_POS2_BOARD_ENABLE | NCR_Q720_POS2_INTERRUPT_ENABLE; diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c index 0464c182c577..005d2b05f32d 100644 --- a/drivers/scsi/imm.c +++ b/drivers/scsi/imm.c @@ -1159,11 +1159,10 @@ static int __imm_attach(struct parport *pb) init_waitqueue_head(&waiting); - dev = kmalloc(sizeof(imm_struct), GFP_KERNEL); + dev = kzalloc(sizeof(imm_struct), GFP_KERNEL); if (!dev) return -ENOMEM; - memset(dev, 0, sizeof(imm_struct)); dev->base = -1; dev->mode = IMM_AUTODETECT; diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 9f8ed6b81576..492a51bd6aa8 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -7068,14 +7068,13 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr) subdevice_id = pci_dev->subsystem_device; /* found a controller */ - ha = kmalloc(sizeof (ips_ha_t), GFP_KERNEL); + ha = kzalloc(sizeof (ips_ha_t), GFP_KERNEL); if (ha == NULL) { IPS_PRINTK(KERN_WARNING, pci_dev, "Unable to allocate temporary ha struct\n"); return -1; } - memset(ha, 0, sizeof (ips_ha_t)); ips_sh[index] = NULL; ips_ha[index] = ha; diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c index 5c32a69e41ba..3126824da36d 100644 --- a/drivers/scsi/lasi700.c +++ b/drivers/scsi/lasi700.c @@ -101,13 +101,12 @@ lasi700_probe(struct parisc_device *dev) struct NCR_700_Host_Parameters *hostdata; struct Scsi_Host *host; - hostdata = kmalloc(sizeof(*hostdata), GFP_KERNEL); + hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL); if (!hostdata) { printk(KERN_ERR "%s: Failed to allocate host data\n", dev->dev.bus_id); return -ENOMEM; } - memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); hostdata->dev = &dev->dev; dma_set_mask(&dev->dev, DMA_32BIT_MASK); diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index d70ddfda93fc..9c5342e7a69c 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -40,6 +40,7 @@ #include <linux/err.h> #include <linux/blkdev.h> +#include <linux/freezer.h> #include <linux/scatterlist.h> /* ---------- SCSI Host glue ---------- */ @@ -868,8 +869,6 @@ static int sas_queue_thread(void *_sas_ha) { struct sas_ha_struct *sas_ha = _sas_ha; - current->flags |= PF_NOFREEZE; - while (1) { set_current_state(TASK_INTERRUPTIBLE); schedule(); diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index f81f85ee190f..07bd0dcdf0d6 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1830,7 +1830,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) /* Initialize and populate the iocb list per host. */ INIT_LIST_HEAD(&phba->lpfc_iocb_list); for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) { - iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); + iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); if (iocbq_entry == NULL) { printk(KERN_ERR "%s: only allocated %d iocbs of " "expected %d count. Unloading driver.\n", @@ -1839,7 +1839,6 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) goto out_free_iocbq; } - memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq)); iotag = lpfc_sli_next_iotag(phba, iocbq_entry); if (iotag == 0) { kfree (iocbq_entry); diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index c46685a03a9f..c6a53dccc16a 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -454,7 +454,7 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) pci_set_master(pdev); // Allocate the per driver initialization structure - adapter = kmalloc(sizeof(adapter_t), GFP_KERNEL); + adapter = kzalloc(sizeof(adapter_t), GFP_KERNEL); if (adapter == NULL) { con_log(CL_ANN, (KERN_WARNING @@ -462,7 +462,6 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) goto out_probe_one; } - memset(adapter, 0, sizeof(adapter_t)); // set up PCI related soft state and other pre-known parameters @@ -746,10 +745,9 @@ megaraid_init_mbox(adapter_t *adapter) * Allocate and initialize the init data structure for mailbox * controllers */ - raid_dev = kmalloc(sizeof(mraid_device_t), GFP_KERNEL); + raid_dev = kzalloc(sizeof(mraid_device_t), GFP_KERNEL); if (raid_dev == NULL) return -1; - memset(raid_dev, 0, sizeof(mraid_device_t)); /* * Attach the adapter soft state to raid device soft state @@ -1050,8 +1048,7 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) * since the calling routine does not yet know the number of available * commands. */ - adapter->kscb_list = kmalloc(sizeof(scb_t) * MBOX_MAX_SCSI_CMDS, - GFP_KERNEL); + adapter->kscb_list = kcalloc(MBOX_MAX_SCSI_CMDS, sizeof(scb_t), GFP_KERNEL); if (adapter->kscb_list == NULL) { con_log(CL_ANN, (KERN_WARNING @@ -1059,7 +1056,6 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) __LINE__)); goto out_free_ibuf; } - memset(adapter->kscb_list, 0, sizeof(scb_t) * MBOX_MAX_SCSI_CMDS); // memory allocation for our command packets if (megaraid_mbox_setup_dma_pools(adapter) != 0) { @@ -3495,8 +3491,7 @@ megaraid_cmm_register(adapter_t *adapter) int i; // Allocate memory for the base list of scb for management module. - adapter->uscb_list = kmalloc(sizeof(scb_t) * MBOX_MAX_USER_CMDS, - GFP_KERNEL); + adapter->uscb_list = kcalloc(MBOX_MAX_USER_CMDS, sizeof(scb_t), GFP_KERNEL); if (adapter->uscb_list == NULL) { con_log(CL_ANN, (KERN_WARNING @@ -3504,7 +3499,6 @@ megaraid_cmm_register(adapter_t *adapter) __LINE__)); return -1; } - memset(adapter->uscb_list, 0, sizeof(scb_t) * MBOX_MAX_USER_CMDS); // Initialize the synchronization parameters for resources for diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c index 84d9c27133d4..b6587a6d8486 100644 --- a/drivers/scsi/megaraid/megaraid_mm.c +++ b/drivers/scsi/megaraid/megaraid_mm.c @@ -890,12 +890,11 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp) if (lld_adp->drvr_type != DRVRTYPE_MBOX) return (-EINVAL); - adapter = kmalloc(sizeof(mraid_mmadp_t), GFP_KERNEL); + adapter = kzalloc(sizeof(mraid_mmadp_t), GFP_KERNEL); if (!adapter) return -ENOMEM; - memset(adapter, 0, sizeof(mraid_mmadp_t)); adapter->unique_id = lld_adp->unique_id; adapter->drvr_type = lld_adp->drvr_type; diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index b7f2e613c903..ebb948c016bb 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -1636,15 +1636,13 @@ static int megasas_alloc_cmds(struct megasas_instance *instance) * Allocate the dynamic array first and then allocate individual * commands. */ - instance->cmd_list = kmalloc(sizeof(struct megasas_cmd *) * max_cmd, - GFP_KERNEL); + instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); if (!instance->cmd_list) { printk(KERN_DEBUG "megasas: out of memory\n"); return -ENOMEM; } - memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) * max_cmd); for (i = 0; i < max_cmd; i++) { instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c index 370802d24acd..2dd0dc9a9aed 100644 --- a/drivers/scsi/pcmcia/aha152x_stub.c +++ b/drivers/scsi/pcmcia/aha152x_stub.c @@ -106,9 +106,8 @@ static int aha152x_probe(struct pcmcia_device *link) DEBUG(0, "aha152x_attach()\n"); /* Create new SCSI device */ - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; - memset(info, 0, sizeof(*info)); info->p_dev = link; link->priv = info; diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c index c6f8c6e65e05..445cfbbca9b3 100644 --- a/drivers/scsi/pcmcia/nsp_cs.c +++ b/drivers/scsi/pcmcia/nsp_cs.c @@ -1602,9 +1602,8 @@ static int nsp_cs_probe(struct pcmcia_device *link) nsp_dbg(NSP_DEBUG_INIT, "in"); /* Create new SCSI device */ - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (info == NULL) { return -ENOMEM; } - memset(info, 0, sizeof(*info)); info->p_dev = link; link->priv = info; data->ScsiInfo = info; diff --git a/drivers/scsi/pcmcia/qlogic_stub.c b/drivers/scsi/pcmcia/qlogic_stub.c index 697cfb76c3a4..67c5a58d17df 100644 --- a/drivers/scsi/pcmcia/qlogic_stub.c +++ b/drivers/scsi/pcmcia/qlogic_stub.c @@ -162,10 +162,9 @@ static int qlogic_probe(struct pcmcia_device *link) DEBUG(0, "qlogic_attach()\n"); /* Create new SCSI device */ - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; - memset(info, 0, sizeof(*info)); info->p_dev = link; link->priv = info; link->io.NumPorts1 = 16; diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c index 2695b7187b2f..961839ecfe86 100644 --- a/drivers/scsi/pcmcia/sym53c500_cs.c +++ b/drivers/scsi/pcmcia/sym53c500_cs.c @@ -875,10 +875,9 @@ SYM53C500_probe(struct pcmcia_device *link) DEBUG(0, "SYM53C500_attach()\n"); /* Create new SCSI device */ - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; - memset(info, 0, sizeof(*info)); info->p_dev = link; link->priv = info; link->io.NumPorts1 = 16; diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index 2f1fa1eb7e90..67b6d76a6c8d 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -1014,10 +1014,9 @@ static int __ppa_attach(struct parport *pb) int modes, ppb, ppb_hi; int err = -ENOMEM; - dev = kmalloc(sizeof(ppa_struct), GFP_KERNEL); + dev = kzalloc(sizeof(ppa_struct), GFP_KERNEL); if (!dev) return -ENOMEM; - memset(dev, 0, sizeof(ppa_struct)); dev->base = -1; dev->mode = PPA_AUTODETECT; dev->recon_tmo = PPA_RECON_TMO; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 9adb64ac054c..8a525abda30f 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -19,6 +19,7 @@ #include <linux/timer.h> #include <linux/string.h> #include <linux/kernel.h> +#include <linux/freezer.h> #include <linux/kthread.h> #include <linux/interrupt.h> #include <linux/blkdev.h> @@ -1516,8 +1517,6 @@ int scsi_error_handler(void *data) { struct Scsi_Host *shost = data; - current->flags |= PF_NOFREEZE; - /* * We use TASK_INTERRUPTIBLE so that the thread is not * counted against the load average as a running process. diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c index 018c65f73ac4..710f19de3d40 100644 --- a/drivers/scsi/sim710.c +++ b/drivers/scsi/sim710.c @@ -100,7 +100,7 @@ sim710_probe_common(struct device *dev, unsigned long base_addr, { struct Scsi_Host * host = NULL; struct NCR_700_Host_Parameters *hostdata = - kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); + kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); printk(KERN_NOTICE "sim710: %s\n", dev->bus_id); printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n", @@ -110,7 +110,6 @@ sim710_probe_common(struct device *dev, unsigned long base_addr, printk(KERN_ERR "sim710: Failed to allocate host data\n"); goto out; } - memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); if(request_region(base_addr, 64, "sim710") == NULL) { printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n", diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 14cba1ca38b3..5db1520f8ba9 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2082,10 +2082,9 @@ static int dc390_slave_alloc(struct scsi_device *scsi_device) uint id = scsi_device->id; uint lun = scsi_device->lun; - pDCB = kmalloc(sizeof(struct dc390_dcb), GFP_KERNEL); + pDCB = kzalloc(sizeof(struct dc390_dcb), GFP_KERNEL); if (!pDCB) return -ENOMEM; - memset(pDCB, 0, sizeof(struct dc390_dcb)); if (!pACB->DCBCnt++) { pACB->pLinkDCB = pDCB; diff --git a/drivers/serial/8250_hp300.c b/drivers/serial/8250_hp300.c index 53e81a44c1a3..2cf0953fe0ec 100644 --- a/drivers/serial/8250_hp300.c +++ b/drivers/serial/8250_hp300.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/serial.h> #include <linux/serial_core.h> +#include <linux/serial_8250.h> #include <linux/delay.h> #include <linux/dio.h> #include <linux/console.h> diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index cab42cbd920d..18f629706448 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -338,6 +338,34 @@ config SERIAL_AMBA_PL011_CONSOLE your boot loader (lilo or loadlin) about how to pass options to the kernel at boot time.) +config SERIAL_SB1250_DUART + tristate "BCM1xxx on-chip DUART serial support" + depends on SIBYTE_SB1xxx_SOC=y + select SERIAL_CORE + default y + ---help--- + Support for the asynchronous serial interface (DUART) included in + the BCM1250 and derived System-On-a-Chip (SOC) devices. Note that + the letter D in DUART stands for "dual", which is how the device + is implemented. Depending on the SOC configuration there may be + one or more DUARTs available of which all are handled. + + If unsure, say Y. To compile this driver as a module, choose M here: + the module will be called sb1250-duart. + +config SERIAL_SB1250_DUART_CONSOLE + bool "Support for console on a BCM1xxx DUART serial port" + depends on SERIAL_SB1250_DUART=y + select SERIAL_CORE_CONSOLE + default y + ---help--- + If you say Y here, it will be possible to use a serial port as the + system console (the system console is the device which receives all + kernel messages and warnings and which allows logins in single user + mode). + + If unsure, say Y. + config SERIAL_ATMEL bool "AT91 / AT32 on-chip serial port support" depends on (ARM && ARCH_AT91) || AVR32 @@ -458,6 +486,36 @@ config SERIAL_DZ_CONSOLE If unsure, say Y. +config SERIAL_ZS + tristate "DECstation Z85C30 serial support" + depends on MACH_DECSTATION + select SERIAL_CORE + default y + ---help--- + Support for the Zilog 85C350 serial communications controller used + for serial ports in newer DECstation systems. These include the + DECsystem 5900 and all models of the DECstation and DECsystem 5000 + systems except from model 200. + + If unsure, say Y. To compile this driver as a module, choose M here: + the module will be called zs. + +config SERIAL_ZS_CONSOLE + bool "Support for console on a DECstation Z85C30 serial port" + depends on SERIAL_ZS=y + select SERIAL_CORE_CONSOLE + default y + ---help--- + If you say Y here, it will be possible to use a serial port as the + system console (the system console is the device which receives all + kernel messages and warnings and which allows logins in single user + mode). + + Note that the firmware uses ttyS1 as the serial console on the + Maxine and ttyS3 on the others using this driver. + + If unsure, say Y. + config SERIAL_21285 tristate "DC21285 serial port support" depends on ARM && FOOTBRIDGE diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 08ad0d978183..af6377d480d7 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_V850E_UART) += v850e_uart.o obj-$(CONFIG_SERIAL_PMACZILOG) += pmac_zilog.o obj-$(CONFIG_SERIAL_LH7A40X) += serial_lh7a40x.o obj-$(CONFIG_SERIAL_DZ) += dz.o +obj-$(CONFIG_SERIAL_ZS) += zs.o obj-$(CONFIG_SERIAL_SH_SCI) += sh-sci.o obj-$(CONFIG_SERIAL_SGI_L1_CONSOLE) += sn_console.o obj-$(CONFIG_SERIAL_CPM) += cpm_uart/ @@ -51,6 +52,7 @@ obj-$(CONFIG_SERIAL_MPC52xx) += mpc52xx_uart.o obj-$(CONFIG_SERIAL_ICOM) += icom.o obj-$(CONFIG_SERIAL_M32R_SIO) += m32r_sio.o obj-$(CONFIG_SERIAL_MPSC) += mpsc.o +obj-$(CONFIG_SERIAL_SB1250_DUART) += sb1250-duart.o obj-$(CONFIG_ETRAX_SERIAL) += crisv10.o obj-$(CONFIG_SERIAL_JSM) += jsm/ obj-$(CONFIG_SERIAL_TXX9) += serial_txx9.o diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c index 954073c6ce3a..72229df9dc11 100644 --- a/drivers/serial/amba-pl011.c +++ b/drivers/serial/amba-pl011.c @@ -716,7 +716,7 @@ static int pl011_probe(struct amba_device *dev, void *id) goto out; } - uap = kmalloc(sizeof(struct uart_amba_port), GFP_KERNEL); + uap = kzalloc(sizeof(struct uart_amba_port), GFP_KERNEL); if (uap == NULL) { ret = -ENOMEM; goto out; @@ -728,7 +728,6 @@ static int pl011_probe(struct amba_device *dev, void *id) goto free; } - memset(uap, 0, sizeof(struct uart_amba_port)); uap->clk = clk_get(&dev->dev, "UARTCLK"); if (IS_ERR(uap->clk)) { ret = PTR_ERR(uap->clk); diff --git a/drivers/serial/sb1250-duart.c b/drivers/serial/sb1250-duart.c new file mode 100644 index 000000000000..1d9d7285172a --- /dev/null +++ b/drivers/serial/sb1250-duart.c @@ -0,0 +1,972 @@ +/* + * drivers/serial/sb1250-duart.c + * + * Support for the asynchronous serial interface (DUART) included + * in the BCM1250 and derived System-On-a-Chip (SOC) devices. + * + * Copyright (c) 2007 Maciej W. Rozycki + * + * Derived from drivers/char/sb1250_duart.c for which the following + * copyright applies: + * + * Copyright (c) 2000, 2001, 2002, 2003, 2004 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * References: + * + * "BCM1250/BCM1125/BCM1125H User Manual", Broadcom Corporation + */ + +#if defined(CONFIG_SERIAL_SB1250_DUART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) +#define SUPPORT_SYSRQ +#endif + +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/kernel.h> +#include <linux/major.h> +#include <linux/serial.h> +#include <linux/serial_core.h> +#include <linux/spinlock.h> +#include <linux/sysrq.h> +#include <linux/tty.h> +#include <linux/types.h> + +#include <asm/atomic.h> +#include <asm/io.h> +#include <asm/war.h> + +#include <asm/sibyte/sb1250.h> +#include <asm/sibyte/sb1250_uart.h> +#include <asm/sibyte/swarm.h> + + +#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) +#include <asm/sibyte/bcm1480_regs.h> +#include <asm/sibyte/bcm1480_int.h> + +#define SBD_CHANREGS(line) A_BCM1480_DUART_CHANREG((line), 0) +#define SBD_CTRLREGS(line) A_BCM1480_DUART_CTRLREG((line), 0) +#define SBD_INT(line) (K_BCM1480_INT_UART_0 + (line)) + +#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) +#include <asm/sibyte/sb1250_regs.h> +#include <asm/sibyte/sb1250_int.h> + +#define SBD_CHANREGS(line) A_DUART_CHANREG((line), 0) +#define SBD_CTRLREGS(line) A_DUART_CTRLREG(0) +#define SBD_INT(line) (K_INT_UART_0 + (line)) + +#else +#error invalid SB1250 UART configuration + +#endif + + +MODULE_AUTHOR("Maciej W. Rozycki <macro@linux-mips.org>"); +MODULE_DESCRIPTION("BCM1xxx on-chip DUART serial driver"); +MODULE_LICENSE("GPL"); + + +#define DUART_MAX_CHIP 2 +#define DUART_MAX_SIDE 2 + +/* + * Per-port state. + */ +struct sbd_port { + struct sbd_duart *duart; + struct uart_port port; + unsigned char __iomem *memctrl; + int tx_stopped; + int initialised; +}; + +/* + * Per-DUART state for the shared register space. + */ +struct sbd_duart { + struct sbd_port sport[2]; + unsigned long mapctrl; + atomic_t map_guard; +}; + +#define to_sport(uport) container_of(uport, struct sbd_port, port) + +static struct sbd_duart sbd_duarts[DUART_MAX_CHIP]; + +#define __unused __attribute__((__unused__)) + + +/* + * Reading and writing SB1250 DUART registers. + * + * There are three register spaces: two per-channel ones and + * a shared one. We have to define accessors appropriately. + * All registers are 64-bit and all but the Baud Rate Clock + * registers only define 8 least significant bits. There is + * also a workaround to take into account. Raw accessors use + * the full register width, but cooked ones truncate it + * intentionally so that the rest of the driver does not care. + */ +static u64 __read_sbdchn(struct sbd_port *sport, int reg) +{ + void __iomem *csr = sport->port.membase + reg; + + return __raw_readq(csr); +} + +static u64 __read_sbdshr(struct sbd_port *sport, int reg) +{ + void __iomem *csr = sport->memctrl + reg; + + return __raw_readq(csr); +} + +static void __write_sbdchn(struct sbd_port *sport, int reg, u64 value) +{ + void __iomem *csr = sport->port.membase + reg; + + __raw_writeq(value, csr); +} + +static void __write_sbdshr(struct sbd_port *sport, int reg, u64 value) +{ + void __iomem *csr = sport->memctrl + reg; + + __raw_writeq(value, csr); +} + +/* + * In bug 1956, we get glitches that can mess up uart registers. This + * "read-mode-reg after any register access" is an accepted workaround. + */ +static void __war_sbd1956(struct sbd_port *sport) +{ + __read_sbdchn(sport, R_DUART_MODE_REG_1); + __read_sbdchn(sport, R_DUART_MODE_REG_2); +} + +static unsigned char read_sbdchn(struct sbd_port *sport, int reg) +{ + unsigned char retval; + + retval = __read_sbdchn(sport, reg); + if (SIBYTE_1956_WAR) + __war_sbd1956(sport); + return retval; +} + +static unsigned char read_sbdshr(struct sbd_port *sport, int reg) +{ + unsigned char retval; + + retval = __read_sbdshr(sport, reg); + if (SIBYTE_1956_WAR) + __war_sbd1956(sport); + return retval; +} + +static void write_sbdchn(struct sbd_port *sport, int reg, unsigned int value) +{ + __write_sbdchn(sport, reg, value); + if (SIBYTE_1956_WAR) + __war_sbd1956(sport); +} + +static void write_sbdshr(struct sbd_port *sport, int reg, unsigned int value) +{ + __write_sbdshr(sport, reg, value); + if (SIBYTE_1956_WAR) + __war_sbd1956(sport); +} + + +static int sbd_receive_ready(struct sbd_port *sport) +{ + return read_sbdchn(sport, R_DUART_STATUS) & M_DUART_RX_RDY; +} + +static int sbd_receive_drain(struct sbd_port *sport) +{ + int loops = 10000; + + while (sbd_receive_ready(sport) && loops--) + read_sbdchn(sport, R_DUART_RX_HOLD); + return loops; +} + +static int __unused sbd_transmit_ready(struct sbd_port *sport) +{ + return read_sbdchn(sport, R_DUART_STATUS) & M_DUART_TX_RDY; +} + +static int __unused sbd_transmit_drain(struct sbd_port *sport) +{ + int loops = 10000; + + while (!sbd_transmit_ready(sport) && loops--) + udelay(2); + return loops; +} + +static int sbd_transmit_empty(struct sbd_port *sport) +{ + return read_sbdchn(sport, R_DUART_STATUS) & M_DUART_TX_EMT; +} + +static int sbd_line_drain(struct sbd_port *sport) +{ + int loops = 10000; + + while (!sbd_transmit_empty(sport) && loops--) + udelay(2); + return loops; +} + + +static unsigned int sbd_tx_empty(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + + return sbd_transmit_empty(sport) ? TIOCSER_TEMT : 0; +} + +static unsigned int sbd_get_mctrl(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + unsigned int mctrl, status; + + status = read_sbdshr(sport, R_DUART_IN_PORT); + status >>= (uport->line) % 2; + mctrl = (!(status & M_DUART_IN_PIN0_VAL) ? TIOCM_CTS : 0) | + (!(status & M_DUART_IN_PIN4_VAL) ? TIOCM_CAR : 0) | + (!(status & M_DUART_RIN0_PIN) ? TIOCM_RNG : 0) | + (!(status & M_DUART_IN_PIN2_VAL) ? TIOCM_DSR : 0); + return mctrl; +} + +static void sbd_set_mctrl(struct uart_port *uport, unsigned int mctrl) +{ + struct sbd_port *sport = to_sport(uport); + unsigned int clr = 0, set = 0, mode2; + + if (mctrl & TIOCM_DTR) + set |= M_DUART_SET_OPR2; + else + clr |= M_DUART_CLR_OPR2; + if (mctrl & TIOCM_RTS) + set |= M_DUART_SET_OPR0; + else + clr |= M_DUART_CLR_OPR0; + clr <<= (uport->line) % 2; + set <<= (uport->line) % 2; + + mode2 = read_sbdchn(sport, R_DUART_MODE_REG_2); + mode2 &= ~M_DUART_CHAN_MODE; + if (mctrl & TIOCM_LOOP) + mode2 |= V_DUART_CHAN_MODE_LCL_LOOP; + else + mode2 |= V_DUART_CHAN_MODE_NORMAL; + + write_sbdshr(sport, R_DUART_CLEAR_OPR, clr); + write_sbdshr(sport, R_DUART_SET_OPR, set); + write_sbdchn(sport, R_DUART_MODE_REG_2, mode2); +} + +static void sbd_stop_tx(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + + write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_DIS); + sport->tx_stopped = 1; +}; + +static void sbd_start_tx(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + unsigned int mask; + + /* Enable tx interrupts. */ + mask = read_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2)); + mask |= M_DUART_IMR_TX; + write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2), mask); + + /* Go!, go!, go!... */ + write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_EN); + sport->tx_stopped = 0; +}; + +static void sbd_stop_rx(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + + write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2), 0); +}; + +static void sbd_enable_ms(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + + write_sbdchn(sport, R_DUART_AUXCTL_X, + M_DUART_CIN_CHNG_ENA | M_DUART_CTS_CHNG_ENA); +} + +static void sbd_break_ctl(struct uart_port *uport, int break_state) +{ + struct sbd_port *sport = to_sport(uport); + + if (break_state == -1) + write_sbdchn(sport, R_DUART_CMD, V_DUART_MISC_CMD_START_BREAK); + else + write_sbdchn(sport, R_DUART_CMD, V_DUART_MISC_CMD_STOP_BREAK); +} + + +static void sbd_receive_chars(struct sbd_port *sport) +{ + struct uart_port *uport = &sport->port; + struct uart_icount *icount; + unsigned int status, ch, flag; + int count; + + for (count = 16; count; count--) { + status = read_sbdchn(sport, R_DUART_STATUS); + if (!(status & M_DUART_RX_RDY)) + break; + + ch = read_sbdchn(sport, R_DUART_RX_HOLD); + + flag = TTY_NORMAL; + + icount = &uport->icount; + icount->rx++; + + if (unlikely(status & + (M_DUART_RCVD_BRK | M_DUART_FRM_ERR | + M_DUART_PARITY_ERR | M_DUART_OVRUN_ERR))) { + if (status & M_DUART_RCVD_BRK) { + icount->brk++; + if (uart_handle_break(uport)) + continue; + } else if (status & M_DUART_FRM_ERR) + icount->frame++; + else if (status & M_DUART_PARITY_ERR) + icount->parity++; + if (status & M_DUART_OVRUN_ERR) + icount->overrun++; + + status &= uport->read_status_mask; + if (status & M_DUART_RCVD_BRK) + flag = TTY_BREAK; + else if (status & M_DUART_FRM_ERR) + flag = TTY_FRAME; + else if (status & M_DUART_PARITY_ERR) + flag = TTY_PARITY; + } + + if (uart_handle_sysrq_char(uport, ch)) + continue; + + uart_insert_char(uport, status, M_DUART_OVRUN_ERR, ch, flag); + } + + tty_flip_buffer_push(uport->info->tty); +} + +static void sbd_transmit_chars(struct sbd_port *sport) +{ + struct uart_port *uport = &sport->port; + struct circ_buf *xmit = &sport->port.info->xmit; + unsigned int mask; + int stop_tx; + + /* XON/XOFF chars. */ + if (sport->port.x_char) { + write_sbdchn(sport, R_DUART_TX_HOLD, sport->port.x_char); + sport->port.icount.tx++; + sport->port.x_char = 0; + return; + } + + /* If nothing to do or stopped or hardware stopped. */ + stop_tx = (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)); + + /* Send char. */ + if (!stop_tx) { + write_sbdchn(sport, R_DUART_TX_HOLD, xmit->buf[xmit->tail]); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); + sport->port.icount.tx++; + + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + uart_write_wakeup(&sport->port); + } + + /* Are we are done? */ + if (stop_tx || uart_circ_empty(xmit)) { + /* Disable tx interrupts. */ + mask = read_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2)); + mask &= ~M_DUART_IMR_TX; + write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2), mask); + } +} + +static void sbd_status_handle(struct sbd_port *sport) +{ + struct uart_port *uport = &sport->port; + unsigned int delta; + + delta = read_sbdshr(sport, R_DUART_INCHREG((uport->line) % 2)); + delta >>= (uport->line) % 2; + + if (delta & (M_DUART_IN_PIN0_VAL << S_DUART_IN_PIN_CHNG)) + uart_handle_cts_change(uport, !(delta & M_DUART_IN_PIN0_VAL)); + + if (delta & (M_DUART_IN_PIN2_VAL << S_DUART_IN_PIN_CHNG)) + uport->icount.dsr++; + + if (delta & ((M_DUART_IN_PIN2_VAL | M_DUART_IN_PIN0_VAL) << + S_DUART_IN_PIN_CHNG)) + wake_up_interruptible(&uport->info->delta_msr_wait); +} + +static irqreturn_t sbd_interrupt(int irq, void *dev_id) +{ + struct sbd_port *sport = dev_id; + struct uart_port *uport = &sport->port; + irqreturn_t status = IRQ_NONE; + unsigned int intstat; + int count; + + for (count = 16; count; count--) { + intstat = read_sbdshr(sport, + R_DUART_ISRREG((uport->line) % 2)); + intstat &= read_sbdshr(sport, + R_DUART_IMRREG((uport->line) % 2)); + intstat &= M_DUART_ISR_ALL; + if (!intstat) + break; + + if (intstat & M_DUART_ISR_RX) + sbd_receive_chars(sport); + if (intstat & M_DUART_ISR_IN) + sbd_status_handle(sport); + if (intstat & M_DUART_ISR_TX) + sbd_transmit_chars(sport); + + status = IRQ_HANDLED; + } + + return status; +} + + +static int sbd_startup(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + unsigned int mode1; + int ret; + + ret = request_irq(sport->port.irq, sbd_interrupt, + IRQF_SHARED, "sb1250-duart", sport); + if (ret) + return ret; + + /* Clear the receive FIFO. */ + sbd_receive_drain(sport); + + /* Clear the interrupt registers. */ + write_sbdchn(sport, R_DUART_CMD, V_DUART_MISC_CMD_RESET_BREAK_INT); + read_sbdshr(sport, R_DUART_INCHREG((uport->line) % 2)); + + /* Set rx/tx interrupt to FIFO available. */ + mode1 = read_sbdchn(sport, R_DUART_MODE_REG_1); + mode1 &= ~(M_DUART_RX_IRQ_SEL_RXFULL | M_DUART_TX_IRQ_SEL_TXEMPT); + write_sbdchn(sport, R_DUART_MODE_REG_1, mode1); + + /* Disable tx, enable rx. */ + write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_DIS | M_DUART_RX_EN); + sport->tx_stopped = 1; + + /* Enable interrupts. */ + write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2), + M_DUART_IMR_IN | M_DUART_IMR_RX); + + return 0; +} + +static void sbd_shutdown(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + + write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_DIS | M_DUART_RX_DIS); + sport->tx_stopped = 1; + free_irq(sport->port.irq, sport); +} + + +static void sbd_init_port(struct sbd_port *sport) +{ + struct uart_port *uport = &sport->port; + + if (sport->initialised) + return; + + /* There is no DUART reset feature, so just set some sane defaults. */ + write_sbdchn(sport, R_DUART_CMD, V_DUART_MISC_CMD_RESET_TX); + write_sbdchn(sport, R_DUART_CMD, V_DUART_MISC_CMD_RESET_RX); + write_sbdchn(sport, R_DUART_MODE_REG_1, V_DUART_BITS_PER_CHAR_8); + write_sbdchn(sport, R_DUART_MODE_REG_2, 0); + write_sbdchn(sport, R_DUART_FULL_CTL, + V_DUART_INT_TIME(0) | V_DUART_SIG_FULL(15)); + write_sbdchn(sport, R_DUART_OPCR_X, 0); + write_sbdchn(sport, R_DUART_AUXCTL_X, 0); + write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2), 0); + + sport->initialised = 1; +} + +static void sbd_set_termios(struct uart_port *uport, struct ktermios *termios, + struct ktermios *old_termios) +{ + struct sbd_port *sport = to_sport(uport); + unsigned int mode1 = 0, mode2 = 0, aux = 0; + unsigned int mode1mask = 0, mode2mask = 0, auxmask = 0; + unsigned int oldmode1, oldmode2, oldaux; + unsigned int baud, brg; + unsigned int command; + + mode1mask |= ~(M_DUART_PARITY_MODE | M_DUART_PARITY_TYPE_ODD | + M_DUART_BITS_PER_CHAR); + mode2mask |= ~M_DUART_STOP_BIT_LEN_2; + auxmask |= ~M_DUART_CTS_CHNG_ENA; + + /* Byte size. */ + switch (termios->c_cflag & CSIZE) { + case CS5: + case CS6: + /* Unsupported, leave unchanged. */ + mode1mask |= M_DUART_PARITY_MODE; + break; + case CS7: + mode1 |= V_DUART_BITS_PER_CHAR_7; + break; + case CS8: + default: + mode1 |= V_DUART_BITS_PER_CHAR_8; + break; + } + + /* Parity and stop bits. */ + if (termios->c_cflag & CSTOPB) + mode2 |= M_DUART_STOP_BIT_LEN_2; + else + mode2 |= M_DUART_STOP_BIT_LEN_1; + if (termios->c_cflag & PARENB) + mode1 |= V_DUART_PARITY_MODE_ADD; + else + mode1 |= V_DUART_PARITY_MODE_NONE; + if (termios->c_cflag & PARODD) + mode1 |= M_DUART_PARITY_TYPE_ODD; + else + mode1 |= M_DUART_PARITY_TYPE_EVEN; + + baud = uart_get_baud_rate(uport, termios, old_termios, 1200, 5000000); + brg = V_DUART_BAUD_RATE(baud); + /* The actual lower bound is 1221bps, so compensate. */ + if (brg > M_DUART_CLK_COUNTER) + brg = M_DUART_CLK_COUNTER; + + uart_update_timeout(uport, termios->c_cflag, baud); + + uport->read_status_mask = M_DUART_OVRUN_ERR; + if (termios->c_iflag & INPCK) + uport->read_status_mask |= M_DUART_FRM_ERR | + M_DUART_PARITY_ERR; + if (termios->c_iflag & (BRKINT | PARMRK)) + uport->read_status_mask |= M_DUART_RCVD_BRK; + + uport->ignore_status_mask = 0; + if (termios->c_iflag & IGNPAR) + uport->ignore_status_mask |= M_DUART_FRM_ERR | + M_DUART_PARITY_ERR; + if (termios->c_iflag & IGNBRK) { + uport->ignore_status_mask |= M_DUART_RCVD_BRK; + if (termios->c_iflag & IGNPAR) + uport->ignore_status_mask |= M_DUART_OVRUN_ERR; + } + + if (termios->c_cflag & CREAD) + command = M_DUART_RX_EN; + else + command = M_DUART_RX_DIS; + + if (termios->c_cflag & CRTSCTS) + aux |= M_DUART_CTS_CHNG_ENA; + else + aux &= ~M_DUART_CTS_CHNG_ENA; + + spin_lock(&uport->lock); + + if (sport->tx_stopped) + command |= M_DUART_TX_DIS; + else + command |= M_DUART_TX_EN; + + oldmode1 = read_sbdchn(sport, R_DUART_MODE_REG_1) & mode1mask; + oldmode2 = read_sbdchn(sport, R_DUART_MODE_REG_2) & mode2mask; + oldaux = read_sbdchn(sport, R_DUART_AUXCTL_X) & auxmask; + + if (!sport->tx_stopped) + sbd_line_drain(sport); + write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_DIS | M_DUART_RX_DIS); + + write_sbdchn(sport, R_DUART_MODE_REG_1, mode1 | oldmode1); + write_sbdchn(sport, R_DUART_MODE_REG_2, mode2 | oldmode2); + write_sbdchn(sport, R_DUART_CLK_SEL, brg); + write_sbdchn(sport, R_DUART_AUXCTL_X, aux | oldaux); + + write_sbdchn(sport, R_DUART_CMD, command); + + spin_unlock(&uport->lock); +} + + +static const char *sbd_type(struct uart_port *uport) +{ + return "SB1250 DUART"; +} + +static void sbd_release_port(struct uart_port *uport) +{ + struct sbd_port *sport = to_sport(uport); + struct sbd_duart *duart = sport->duart; + int map_guard; + + iounmap(sport->memctrl); + sport->memctrl = NULL; + iounmap(uport->membase); + uport->membase = NULL; + + map_guard = atomic_add_return(-1, &duart->map_guard); + if (!map_guard) + release_mem_region(duart->mapctrl, DUART_CHANREG_SPACING); + release_mem_region(uport->mapbase, DUART_CHANREG_SPACING); +} + +static int sbd_map_port(struct uart_port *uport) +{ + static const char *err = KERN_ERR "sbd: Cannot map MMIO\n"; + struct sbd_port *sport = to_sport(uport); + struct sbd_duart *duart = sport->duart; + + if (!uport->membase) + uport->membase = ioremap_nocache(uport->mapbase, + DUART_CHANREG_SPACING); + if (!uport->membase) { + printk(err); + return -ENOMEM; + } + + if (!sport->memctrl) + sport->memctrl = ioremap_nocache(duart->mapctrl, + DUART_CHANREG_SPACING); + if (!sport->memctrl) { + printk(err); + iounmap(uport->membase); + uport->membase = NULL; + return -ENOMEM; + } + + return 0; +} + +static int sbd_request_port(struct uart_port *uport) +{ + static const char *err = KERN_ERR + "sbd: Unable to reserve MMIO resource\n"; + struct sbd_duart *duart = to_sport(uport)->duart; + int map_guard; + int ret = 0; + + if (!request_mem_region(uport->mapbase, DUART_CHANREG_SPACING, + "sb1250-duart")) { + printk(err); + return -EBUSY; + } + map_guard = atomic_add_return(1, &duart->map_guard); + if (map_guard == 1) { + if (!request_mem_region(duart->mapctrl, DUART_CHANREG_SPACING, + "sb1250-duart")) { + atomic_add(-1, &duart->map_guard); + printk(err); + ret = -EBUSY; + } + } + if (!ret) { + ret = sbd_map_port(uport); + if (ret) { + map_guard = atomic_add_return(-1, &duart->map_guard); + if (!map_guard) + release_mem_region(duart->mapctrl, + DUART_CHANREG_SPACING); + } + } + if (ret) { + release_mem_region(uport->mapbase, DUART_CHANREG_SPACING); + return ret; + } + return 0; +} + +static void sbd_config_port(struct uart_port *uport, int flags) +{ + struct sbd_port *sport = to_sport(uport); + + if (flags & UART_CONFIG_TYPE) { + if (sbd_request_port(uport)) + return; + + uport->type = PORT_SB1250_DUART; + + sbd_init_port(sport); + } +} + +static int sbd_verify_port(struct uart_port *uport, struct serial_struct *ser) +{ + int ret = 0; + + if (ser->type != PORT_UNKNOWN && ser->type != PORT_SB1250_DUART) + ret = -EINVAL; + if (ser->irq != uport->irq) + ret = -EINVAL; + if (ser->baud_base != uport->uartclk / 16) + ret = -EINVAL; + return ret; +} + + +static struct uart_ops sbd_ops = { + .tx_empty = sbd_tx_empty, + .set_mctrl = sbd_set_mctrl, + .get_mctrl = sbd_get_mctrl, + .stop_tx = sbd_stop_tx, + .start_tx = sbd_start_tx, + .stop_rx = sbd_stop_rx, + .enable_ms = sbd_enable_ms, + .break_ctl = sbd_break_ctl, + .startup = sbd_startup, + .shutdown = sbd_shutdown, + .set_termios = sbd_set_termios, + .type = sbd_type, + .release_port = sbd_release_port, + .request_port = sbd_request_port, + .config_port = sbd_config_port, + .verify_port = sbd_verify_port, +}; + +/* Initialize SB1250 DUART port structures. */ +static void __init sbd_probe_duarts(void) +{ + static int probed; + int chip, side; + int max_lines, line; + + if (probed) + return; + + /* Set the number of available units based on the SOC type. */ + switch (soc_type) { + case K_SYS_SOC_TYPE_BCM1x55: + case K_SYS_SOC_TYPE_BCM1x80: + max_lines = 4; + break; + default: + /* Assume at least two serial ports at the normal address. */ + max_lines = 2; + break; + } + + probed = 1; + + for (chip = 0, line = 0; chip < DUART_MAX_CHIP && line < max_lines; + chip++) { + sbd_duarts[chip].mapctrl = SBD_CTRLREGS(line); + + for (side = 0; side < DUART_MAX_SIDE && line < max_lines; + side++, line++) { + struct sbd_port *sport = &sbd_duarts[chip].sport[side]; + struct uart_port *uport = &sport->port; + + sport->duart = &sbd_duarts[chip]; + + uport->irq = SBD_INT(line); + uport->uartclk = 100000000 / 20 * 16; + uport->fifosize = 16; + uport->iotype = UPIO_MEM; + uport->flags = UPF_BOOT_AUTOCONF; + uport->ops = &sbd_ops; + uport->line = line; + uport->mapbase = SBD_CHANREGS(line); + } + } +} + + +#ifdef CONFIG_SERIAL_SB1250_DUART_CONSOLE +/* + * Serial console stuff. Very basic, polling driver for doing serial + * console output. The console_sem is held by the caller, so we + * shouldn't be interrupted for more console activity. + */ +static void sbd_console_putchar(struct uart_port *uport, int ch) +{ + struct sbd_port *sport = to_sport(uport); + + sbd_transmit_drain(sport); + write_sbdchn(sport, R_DUART_TX_HOLD, ch); +} + +static void sbd_console_write(struct console *co, const char *s, + unsigned int count) +{ + int chip = co->index / DUART_MAX_SIDE; + int side = co->index % DUART_MAX_SIDE; + struct sbd_port *sport = &sbd_duarts[chip].sport[side]; + struct uart_port *uport = &sport->port; + unsigned long flags; + unsigned int mask; + + /* Disable transmit interrupts and enable the transmitter. */ + spin_lock_irqsave(&uport->lock, flags); + mask = read_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2)); + write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2), + mask & ~M_DUART_IMR_TX); + write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_EN); + spin_unlock_irqrestore(&uport->lock, flags); + + uart_console_write(&sport->port, s, count, sbd_console_putchar); + + /* Restore transmit interrupts and the transmitter enable. */ + spin_lock_irqsave(&uport->lock, flags); + sbd_line_drain(sport); + if (sport->tx_stopped) + write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_DIS); + write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2), mask); + spin_unlock_irqrestore(&uport->lock, flags); +} + +static int __init sbd_console_setup(struct console *co, char *options) +{ + int chip = co->index / DUART_MAX_SIDE; + int side = co->index % DUART_MAX_SIDE; + struct sbd_port *sport = &sbd_duarts[chip].sport[side]; + struct uart_port *uport = &sport->port; + int baud = 115200; + int bits = 8; + int parity = 'n'; + int flow = 'n'; + int ret; + + if (!sport->duart) + return -ENXIO; + + ret = sbd_map_port(uport); + if (ret) + return ret; + + sbd_init_port(sport); + + if (options) + uart_parse_options(options, &baud, &parity, &bits, &flow); + return uart_set_options(uport, co, baud, parity, bits, flow); +} + +static struct uart_driver sbd_reg; +static struct console sbd_console = { + .name = "duart", + .write = sbd_console_write, + .device = uart_console_device, + .setup = sbd_console_setup, + .flags = CON_PRINTBUFFER, + .index = -1, + .data = &sbd_reg +}; + +static int __init sbd_serial_console_init(void) +{ + sbd_probe_duarts(); + register_console(&sbd_console); + + return 0; +} + +console_initcall(sbd_serial_console_init); + +#define SERIAL_SB1250_DUART_CONSOLE &sbd_console +#else +#define SERIAL_SB1250_DUART_CONSOLE NULL +#endif /* CONFIG_SERIAL_SB1250_DUART_CONSOLE */ + + +static struct uart_driver sbd_reg = { + .owner = THIS_MODULE, + .driver_name = "serial", + .dev_name = "duart", + .major = TTY_MAJOR, + .minor = SB1250_DUART_MINOR_BASE, + .nr = DUART_MAX_CHIP * DUART_MAX_SIDE, + .cons = SERIAL_SB1250_DUART_CONSOLE, +}; + +/* Set up the driver and register it. */ +static int __init sbd_init(void) +{ + int i, ret; + + sbd_probe_duarts(); + + ret = uart_register_driver(&sbd_reg); + if (ret) + return ret; + + for (i = 0; i < DUART_MAX_CHIP * DUART_MAX_SIDE; i++) { + struct sbd_duart *duart = &sbd_duarts[i / DUART_MAX_SIDE]; + struct sbd_port *sport = &duart->sport[i % DUART_MAX_SIDE]; + struct uart_port *uport = &sport->port; + + if (sport->duart) + uart_add_one_port(&sbd_reg, uport); + } + + return 0; +} + +/* Unload the driver. Unregister stuff, get ready to go away. */ +static void __exit sbd_exit(void) +{ + int i; + + for (i = DUART_MAX_CHIP * DUART_MAX_SIDE - 1; i >= 0; i--) { + struct sbd_duart *duart = &sbd_duarts[i / DUART_MAX_SIDE]; + struct sbd_port *sport = &duart->sport[i % DUART_MAX_SIDE]; + struct uart_port *uport = &sport->port; + + if (sport->duart) + uart_remove_one_port(&sbd_reg, uport); + } + + uart_unregister_driver(&sbd_reg); +} + +module_init(sbd_init); +module_exit(sbd_exit); diff --git a/drivers/serial/zs.c b/drivers/serial/zs.c new file mode 100644 index 000000000000..65f1294fd27b --- /dev/null +++ b/drivers/serial/zs.c @@ -0,0 +1,1287 @@ +/* + * zs.c: Serial port driver for IOASIC DECstations. + * + * Derived from drivers/sbus/char/sunserial.c by Paul Mackerras. + * Derived from drivers/macintosh/macserial.c by Harald Koerfgen. + * + * DECstation changes + * Copyright (C) 1998-2000 Harald Koerfgen + * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007 Maciej W. Rozycki + * + * For the rest of the code the original Copyright applies: + * Copyright (C) 1996 Paul Mackerras (Paul.Mackerras@cs.anu.edu.au) + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * + * + * Note: for IOASIC systems the wiring is as follows: + * + * mouse/keyboard: + * DIN-7 MJ-4 signal SCC + * 2 1 TxD <- A.TxD + * 3 4 RxD -> A.RxD + * + * EIA-232/EIA-423: + * DB-25 MMJ-6 signal SCC + * 2 2 TxD <- B.TxD + * 3 5 RxD -> B.RxD + * 4 RTS <- ~A.RTS + * 5 CTS -> ~B.CTS + * 6 6 DSR -> ~A.SYNC + * 8 CD -> ~B.DCD + * 12 DSRS(DCE) -> ~A.CTS (*) + * 15 TxC -> B.TxC + * 17 RxC -> B.RxC + * 20 1 DTR <- ~A.DTR + * 22 RI -> ~A.DCD + * 23 DSRS(DTE) <- ~B.RTS + * + * (*) EIA-232 defines the signal at this pin to be SCD, while DSRS(DCE) + * is shared with DSRS(DTE) at pin 23. + * + * As you can immediately notice the wiring of the RTS, DTR and DSR signals + * is a bit odd. This makes the handling of port B unnecessarily + * complicated and prevents the use of some automatic modes of operation. + */ + +#if defined(CONFIG_SERIAL_ZS_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) +#define SUPPORT_SYSRQ +#endif + +#include <linux/bug.h> +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/irqflags.h> +#include <linux/kernel.h> +#include <linux/major.h> +#include <linux/serial.h> +#include <linux/serial_core.h> +#include <linux/spinlock.h> +#include <linux/sysrq.h> +#include <linux/tty.h> +#include <linux/types.h> + +#include <asm/atomic.h> +#include <asm/system.h> + +#include <asm/dec/interrupts.h> +#include <asm/dec/ioasic_addrs.h> +#include <asm/dec/system.h> + +#include "zs.h" + + +MODULE_AUTHOR("Maciej W. Rozycki <macro@linux-mips.org>"); +MODULE_DESCRIPTION("DECstation Z85C30 serial driver"); +MODULE_LICENSE("GPL"); + + +static char zs_name[] __initdata = "DECstation Z85C30 serial driver version "; +static char zs_version[] __initdata = "0.10"; + +/* + * It would be nice to dynamically allocate everything that + * depends on ZS_NUM_SCCS, so we could support any number of + * Z85C30s, but for now... + */ +#define ZS_NUM_SCCS 2 /* Max # of ZS chips supported. */ +#define ZS_NUM_CHAN 2 /* 2 channels per chip. */ +#define ZS_CHAN_A 0 /* Index of the channel A. */ +#define ZS_CHAN_B 1 /* Index of the channel B. */ +#define ZS_CHAN_IO_SIZE 8 /* IOMEM space size. */ +#define ZS_CHAN_IO_STRIDE 4 /* Register alignment. */ +#define ZS_CHAN_IO_OFFSET 1 /* The SCC resides on the high byte + of the 16-bit IOBUS. */ +#define ZS_CLOCK 7372800 /* Z85C30 PCLK input clock rate. */ + +#define to_zport(uport) container_of(uport, struct zs_port, port) + +struct zs_parms { + resource_size_t scc[ZS_NUM_SCCS]; + int irq[ZS_NUM_SCCS]; +}; + +static struct zs_scc zs_sccs[ZS_NUM_SCCS]; + +static u8 zs_init_regs[ZS_NUM_REGS] __initdata = { + 0, /* write 0 */ + PAR_SPEC, /* write 1 */ + 0, /* write 2 */ + 0, /* write 3 */ + X16CLK | SB1, /* write 4 */ + 0, /* write 5 */ + 0, 0, 0, /* write 6, 7, 8 */ + MIE | DLC | NV, /* write 9 */ + NRZ, /* write 10 */ + TCBR | RCBR, /* write 11 */ + 0, 0, /* BRG time constant, write 12 + 13 */ + BRSRC | BRENABL, /* write 14 */ + 0, /* write 15 */ +}; + +/* + * Debugging. + */ +#undef ZS_DEBUG_REGS + + +/* + * Reading and writing Z85C30 registers. + */ +static void recovery_delay(void) +{ + udelay(2); +} + +static u8 read_zsreg(struct zs_port *zport, int reg) +{ + void __iomem *control = zport->port.membase + ZS_CHAN_IO_OFFSET; + u8 retval; + + if (reg != 0) { + writeb(reg & 0xf, control); + fast_iob(); + recovery_delay(); + } + retval = readb(control); + recovery_delay(); + return retval; +} + +static void write_zsreg(struct zs_port *zport, int reg, u8 value) +{ + void __iomem *control = zport->port.membase + ZS_CHAN_IO_OFFSET; + + if (reg != 0) { + writeb(reg & 0xf, control); + fast_iob(); recovery_delay(); + } + writeb(value, control); + fast_iob(); + recovery_delay(); + return; +} + +static u8 read_zsdata(struct zs_port *zport) +{ + void __iomem *data = zport->port.membase + + ZS_CHAN_IO_STRIDE + ZS_CHAN_IO_OFFSET; + u8 retval; + + retval = readb(data); + recovery_delay(); + return retval; +} + +static void write_zsdata(struct zs_port *zport, u8 value) +{ + void __iomem *data = zport->port.membase + + ZS_CHAN_IO_STRIDE + ZS_CHAN_IO_OFFSET; + + writeb(value, data); + fast_iob(); + recovery_delay(); + return; +} + +#ifdef ZS_DEBUG_REGS +void zs_dump(void) +{ + struct zs_port *zport; + int i, j; + + for (i = 0; i < ZS_NUM_SCCS * ZS_NUM_CHAN; i++) { + zport = &zs_sccs[i / ZS_NUM_CHAN].zport[i % ZS_NUM_CHAN]; + + if (!zport->scc) + continue; + + for (j = 0; j < 16; j++) + printk("W%-2d = 0x%02x\t", j, zport->regs[j]); + printk("\n"); + for (j = 0; j < 16; j++) + printk("R%-2d = 0x%02x\t", j, read_zsreg(zport, j)); + printk("\n\n"); + } +} +#endif + + +static void zs_spin_lock_cond_irq(spinlock_t *lock, int irq) +{ + if (irq) + spin_lock_irq(lock); + else + spin_lock(lock); +} + +static void zs_spin_unlock_cond_irq(spinlock_t *lock, int irq) +{ + if (irq) + spin_unlock_irq(lock); + else + spin_unlock(lock); +} + +static int zs_receive_drain(struct zs_port *zport) +{ + int loops = 10000; + + while ((read_zsreg(zport, R0) & Rx_CH_AV) && loops--) + read_zsdata(zport); + return loops; +} + +static int zs_transmit_drain(struct zs_port *zport, int irq) +{ + struct zs_scc *scc = zport->scc; + int loops = 10000; + + while (!(read_zsreg(zport, R0) & Tx_BUF_EMP) && loops--) { + zs_spin_unlock_cond_irq(&scc->zlock, irq); + udelay(2); + zs_spin_lock_cond_irq(&scc->zlock, irq); + } + return loops; +} + +static int zs_line_drain(struct zs_port *zport, int irq) +{ + struct zs_scc *scc = zport->scc; + int loops = 10000; + + while (!(read_zsreg(zport, R1) & ALL_SNT) && loops--) { + zs_spin_unlock_cond_irq(&scc->zlock, irq); + udelay(2); + zs_spin_lock_cond_irq(&scc->zlock, irq); + } + return loops; +} + + +static void load_zsregs(struct zs_port *zport, u8 *regs, int irq) +{ + /* Let the current transmission finish. */ + zs_line_drain(zport, irq); + /* Load 'em up. */ + write_zsreg(zport, R3, regs[3] & ~RxENABLE); + write_zsreg(zport, R5, regs[5] & ~TxENAB); + write_zsreg(zport, R4, regs[4]); + write_zsreg(zport, R9, regs[9]); + write_zsreg(zport, R1, regs[1]); + write_zsreg(zport, R2, regs[2]); + write_zsreg(zport, R10, regs[10]); + write_zsreg(zport, R14, regs[14] & ~BRENABL); + write_zsreg(zport, R11, regs[11]); + write_zsreg(zport, R12, regs[12]); + write_zsreg(zport, R13, regs[13]); + write_zsreg(zport, R14, regs[14]); + write_zsreg(zport, R15, regs[15]); + if (regs[3] & RxENABLE) + write_zsreg(zport, R3, regs[3]); + if (regs[5] & TxENAB) + write_zsreg(zport, R5, regs[5]); + return; +} + + +/* + * Status handling routines. + */ + +/* + * zs_tx_empty() -- get the transmitter empty status + * + * Purpose: Let user call ioctl() to get info when the UART physically + * is emptied. On bus types like RS485, the transmitter must + * release the bus after transmitting. This must be done when + * the transmit shift register is empty, not be done when the + * transmit holding register is empty. This functionality + * allows an RS485 driver to be written in user space. + */ +static unsigned int zs_tx_empty(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + unsigned long flags; + u8 status; + + spin_lock_irqsave(&scc->zlock, flags); + status = read_zsreg(zport, R1); + spin_unlock_irqrestore(&scc->zlock, flags); + + return status & ALL_SNT ? TIOCSER_TEMT : 0; +} + +static unsigned int zs_raw_get_ab_mctrl(struct zs_port *zport_a, + struct zs_port *zport_b) +{ + u8 status_a, status_b; + unsigned int mctrl; + + status_a = read_zsreg(zport_a, R0); + status_b = read_zsreg(zport_b, R0); + + mctrl = ((status_b & CTS) ? TIOCM_CTS : 0) | + ((status_b & DCD) ? TIOCM_CAR : 0) | + ((status_a & DCD) ? TIOCM_RNG : 0) | + ((status_a & SYNC_HUNT) ? TIOCM_DSR : 0); + + return mctrl; +} + +static unsigned int zs_raw_get_mctrl(struct zs_port *zport) +{ + struct zs_port *zport_a = &zport->scc->zport[ZS_CHAN_A]; + + return zport != zport_a ? zs_raw_get_ab_mctrl(zport_a, zport) : 0; +} + +static unsigned int zs_raw_xor_mctrl(struct zs_port *zport) +{ + struct zs_port *zport_a = &zport->scc->zport[ZS_CHAN_A]; + unsigned int mmask, mctrl, delta; + u8 mask_a, mask_b; + + if (zport == zport_a) + return 0; + + mask_a = zport_a->regs[15]; + mask_b = zport->regs[15]; + + mmask = ((mask_b & CTSIE) ? TIOCM_CTS : 0) | + ((mask_b & DCDIE) ? TIOCM_CAR : 0) | + ((mask_a & DCDIE) ? TIOCM_RNG : 0) | + ((mask_a & SYNCIE) ? TIOCM_DSR : 0); + + mctrl = zport->mctrl; + if (mmask) { + mctrl &= ~mmask; + mctrl |= zs_raw_get_ab_mctrl(zport_a, zport) & mmask; + } + + delta = mctrl ^ zport->mctrl; + if (delta) + zport->mctrl = mctrl; + + return delta; +} + +static unsigned int zs_get_mctrl(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + unsigned int mctrl; + + spin_lock(&scc->zlock); + mctrl = zs_raw_get_mctrl(zport); + spin_unlock(&scc->zlock); + + return mctrl; +} + +static void zs_set_mctrl(struct uart_port *uport, unsigned int mctrl) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + struct zs_port *zport_a = &scc->zport[ZS_CHAN_A]; + u8 oldloop, newloop; + + spin_lock(&scc->zlock); + if (zport != zport_a) { + if (mctrl & TIOCM_DTR) + zport_a->regs[5] |= DTR; + else + zport_a->regs[5] &= ~DTR; + if (mctrl & TIOCM_RTS) + zport_a->regs[5] |= RTS; + else + zport_a->regs[5] &= ~RTS; + write_zsreg(zport_a, R5, zport_a->regs[5]); + } + + /* Rarely modified, so don't poke at hardware unless necessary. */ + oldloop = zport->regs[14]; + newloop = oldloop; + if (mctrl & TIOCM_LOOP) + newloop |= LOOPBAK; + else + newloop &= ~LOOPBAK; + if (newloop != oldloop) { + zport->regs[14] = newloop; + write_zsreg(zport, R14, zport->regs[14]); + } + spin_unlock(&scc->zlock); +} + +static void zs_raw_stop_tx(struct zs_port *zport) +{ + write_zsreg(zport, R0, RES_Tx_P); + zport->tx_stopped = 1; +} + +static void zs_stop_tx(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + + spin_lock(&scc->zlock); + zs_raw_stop_tx(zport); + spin_unlock(&scc->zlock); +} + +static void zs_raw_transmit_chars(struct zs_port *); + +static void zs_start_tx(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + + spin_lock(&scc->zlock); + if (zport->tx_stopped) { + zs_transmit_drain(zport, 0); + zport->tx_stopped = 0; + zs_raw_transmit_chars(zport); + } + spin_unlock(&scc->zlock); +} + +static void zs_stop_rx(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + struct zs_port *zport_a = &scc->zport[ZS_CHAN_A]; + + spin_lock(&scc->zlock); + zport->regs[15] &= ~BRKIE; + zport->regs[1] &= ~(RxINT_MASK | TxINT_ENAB); + zport->regs[1] |= RxINT_DISAB; + + if (zport != zport_a) { + /* A-side DCD tracks RI and SYNC tracks DSR. */ + zport_a->regs[15] &= ~(DCDIE | SYNCIE); + write_zsreg(zport_a, R15, zport_a->regs[15]); + if (!(zport_a->regs[15] & BRKIE)) { + zport_a->regs[1] &= ~EXT_INT_ENAB; + write_zsreg(zport_a, R1, zport_a->regs[1]); + } + + /* This-side DCD tracks DCD and CTS tracks CTS. */ + zport->regs[15] &= ~(DCDIE | CTSIE); + zport->regs[1] &= ~EXT_INT_ENAB; + } else { + /* DCD tracks RI and SYNC tracks DSR for the B side. */ + if (!(zport->regs[15] & (DCDIE | SYNCIE))) + zport->regs[1] &= ~EXT_INT_ENAB; + } + + write_zsreg(zport, R15, zport->regs[15]); + write_zsreg(zport, R1, zport->regs[1]); + spin_unlock(&scc->zlock); +} + +static void zs_enable_ms(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + struct zs_port *zport_a = &scc->zport[ZS_CHAN_A]; + + if (zport == zport_a) + return; + + spin_lock(&scc->zlock); + + /* Clear Ext interrupts if not being handled already. */ + if (!(zport_a->regs[1] & EXT_INT_ENAB)) + write_zsreg(zport_a, R0, RES_EXT_INT); + + /* A-side DCD tracks RI and SYNC tracks DSR. */ + zport_a->regs[1] |= EXT_INT_ENAB; + zport_a->regs[15] |= DCDIE | SYNCIE; + + /* This-side DCD tracks DCD and CTS tracks CTS. */ + zport->regs[15] |= DCDIE | CTSIE; + + zs_raw_xor_mctrl(zport); + + write_zsreg(zport_a, R1, zport_a->regs[1]); + write_zsreg(zport_a, R15, zport_a->regs[15]); + write_zsreg(zport, R15, zport->regs[15]); + spin_unlock(&scc->zlock); +} + +static void zs_break_ctl(struct uart_port *uport, int break_state) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + unsigned long flags; + + spin_lock_irqsave(&scc->zlock, flags); + if (break_state == -1) + zport->regs[5] |= SND_BRK; + else + zport->regs[5] &= ~SND_BRK; + write_zsreg(zport, R5, zport->regs[5]); + spin_unlock_irqrestore(&scc->zlock, flags); +} + + +/* + * Interrupt handling routines. + */ +#define Rx_BRK 0x0100 /* BREAK event software flag. */ +#define Rx_SYS 0x0200 /* SysRq event software flag. */ + +static void zs_receive_chars(struct zs_port *zport) +{ + struct uart_port *uport = &zport->port; + struct zs_scc *scc = zport->scc; + struct uart_icount *icount; + unsigned int avail, status, ch, flag; + int count; + + for (count = 16; count; count--) { + spin_lock(&scc->zlock); + avail = read_zsreg(zport, R0) & Rx_CH_AV; + spin_unlock(&scc->zlock); + if (!avail) + break; + + spin_lock(&scc->zlock); + status = read_zsreg(zport, R1) & (Rx_OVR | FRM_ERR | PAR_ERR); + ch = read_zsdata(zport); + spin_unlock(&scc->zlock); + + flag = TTY_NORMAL; + + icount = &uport->icount; + icount->rx++; + + /* Handle the null char got when BREAK is removed. */ + if (!ch) + status |= zport->tty_break; + if (unlikely(status & + (Rx_OVR | FRM_ERR | PAR_ERR | Rx_SYS | Rx_BRK))) { + zport->tty_break = 0; + + /* Reset the error indication. */ + if (status & (Rx_OVR | FRM_ERR | PAR_ERR)) { + spin_lock(&scc->zlock); + write_zsreg(zport, R0, ERR_RES); + spin_unlock(&scc->zlock); + } + + if (status & (Rx_SYS | Rx_BRK)) { + icount->brk++; + /* SysRq discards the null char. */ + if (status & Rx_SYS) + continue; + } else if (status & FRM_ERR) + icount->frame++; + else if (status & PAR_ERR) + icount->parity++; + if (status & Rx_OVR) + icount->overrun++; + + status &= uport->read_status_mask; + if (status & Rx_BRK) + flag = TTY_BREAK; + else if (status & FRM_ERR) + flag = TTY_FRAME; + else if (status & PAR_ERR) + flag = TTY_PARITY; + } + + if (uart_handle_sysrq_char(uport, ch)) + continue; + + uart_insert_char(uport, status, Rx_OVR, ch, flag); + } + + tty_flip_buffer_push(uport->info->tty); +} + +static void zs_raw_transmit_chars(struct zs_port *zport) +{ + struct circ_buf *xmit = &zport->port.info->xmit; + + /* XON/XOFF chars. */ + if (zport->port.x_char) { + write_zsdata(zport, zport->port.x_char); + zport->port.icount.tx++; + zport->port.x_char = 0; + return; + } + + /* If nothing to do or stopped or hardware stopped. */ + if (uart_circ_empty(xmit) || uart_tx_stopped(&zport->port)) { + zs_raw_stop_tx(zport); + return; + } + + /* Send char. */ + write_zsdata(zport, xmit->buf[xmit->tail]); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); + zport->port.icount.tx++; + + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + uart_write_wakeup(&zport->port); + + /* Are we are done? */ + if (uart_circ_empty(xmit)) + zs_raw_stop_tx(zport); +} + +static void zs_transmit_chars(struct zs_port *zport) +{ + struct zs_scc *scc = zport->scc; + + spin_lock(&scc->zlock); + zs_raw_transmit_chars(zport); + spin_unlock(&scc->zlock); +} + +static void zs_status_handle(struct zs_port *zport, struct zs_port *zport_a) +{ + struct uart_port *uport = &zport->port; + struct zs_scc *scc = zport->scc; + unsigned int delta; + u8 status, brk; + + spin_lock(&scc->zlock); + + /* Get status from Read Register 0. */ + status = read_zsreg(zport, R0); + + if (zport->regs[15] & BRKIE) { + brk = status & BRK_ABRT; + if (brk && !zport->brk) { + spin_unlock(&scc->zlock); + if (uart_handle_break(uport)) + zport->tty_break = Rx_SYS; + else + zport->tty_break = Rx_BRK; + spin_lock(&scc->zlock); + } + zport->brk = brk; + } + + if (zport != zport_a) { + delta = zs_raw_xor_mctrl(zport); + spin_unlock(&scc->zlock); + + if (delta & TIOCM_CTS) + uart_handle_cts_change(uport, + zport->mctrl & TIOCM_CTS); + if (delta & TIOCM_CAR) + uart_handle_dcd_change(uport, + zport->mctrl & TIOCM_CAR); + if (delta & TIOCM_RNG) + uport->icount.dsr++; + if (delta & TIOCM_DSR) + uport->icount.rng++; + + if (delta) + wake_up_interruptible(&uport->info->delta_msr_wait); + + spin_lock(&scc->zlock); + } + + /* Clear the status condition... */ + write_zsreg(zport, R0, RES_EXT_INT); + + spin_unlock(&scc->zlock); +} + +/* + * This is the Z85C30 driver's generic interrupt routine. + */ +static irqreturn_t zs_interrupt(int irq, void *dev_id) +{ + struct zs_scc *scc = dev_id; + struct zs_port *zport_a = &scc->zport[ZS_CHAN_A]; + struct zs_port *zport_b = &scc->zport[ZS_CHAN_B]; + irqreturn_t status = IRQ_NONE; + u8 zs_intreg; + int count; + + /* + * NOTE: The read register 3, which holds the irq status, + * does so for both channels on each chip. Although + * the status value itself must be read from the A + * channel and is only valid when read from channel A. + * Yes... broken hardware... + */ + for (count = 16; count; count--) { + spin_lock(&scc->zlock); + zs_intreg = read_zsreg(zport_a, R3); + spin_unlock(&scc->zlock); + if (!zs_intreg) + break; + + /* + * We do not like losing characters, so we prioritise + * interrupt sources a little bit differently than + * the SCC would, was it allowed to. + */ + if (zs_intreg & CHBRxIP) + zs_receive_chars(zport_b); + if (zs_intreg & CHARxIP) + zs_receive_chars(zport_a); + if (zs_intreg & CHBEXT) + zs_status_handle(zport_b, zport_a); + if (zs_intreg & CHAEXT) + zs_status_handle(zport_a, zport_a); + if (zs_intreg & CHBTxIP) + zs_transmit_chars(zport_b); + if (zs_intreg & CHATxIP) + zs_transmit_chars(zport_a); + + status = IRQ_HANDLED; + } + + return status; +} + + +/* + * Finally, routines used to initialize the serial port. + */ +static int zs_startup(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + unsigned long flags; + int irq_guard; + int ret; + + irq_guard = atomic_add_return(1, &scc->irq_guard); + if (irq_guard == 1) { + ret = request_irq(zport->port.irq, zs_interrupt, + IRQF_SHARED, "scc", scc); + if (ret) { + atomic_add(-1, &scc->irq_guard); + printk(KERN_ERR "zs: can't get irq %d\n", + zport->port.irq); + return ret; + } + } + + spin_lock_irqsave(&scc->zlock, flags); + + /* Clear the receive FIFO. */ + zs_receive_drain(zport); + + /* Clear the interrupt registers. */ + write_zsreg(zport, R0, ERR_RES); + write_zsreg(zport, R0, RES_Tx_P); + /* But Ext only if not being handled already. */ + if (!(zport->regs[1] & EXT_INT_ENAB)) + write_zsreg(zport, R0, RES_EXT_INT); + + /* Finally, enable sequencing and interrupts. */ + zport->regs[1] &= ~RxINT_MASK; + zport->regs[1] |= RxINT_ALL | TxINT_ENAB | EXT_INT_ENAB; + zport->regs[3] |= RxENABLE; + zport->regs[5] |= TxENAB; + zport->regs[15] |= BRKIE; + write_zsreg(zport, R1, zport->regs[1]); + write_zsreg(zport, R3, zport->regs[3]); + write_zsreg(zport, R5, zport->regs[5]); + write_zsreg(zport, R15, zport->regs[15]); + + /* Record the current state of RR0. */ + zport->mctrl = zs_raw_get_mctrl(zport); + zport->brk = read_zsreg(zport, R0) & BRK_ABRT; + + zport->tx_stopped = 1; + + spin_unlock_irqrestore(&scc->zlock, flags); + + return 0; +} + +static void zs_shutdown(struct uart_port *uport) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + unsigned long flags; + int irq_guard; + + spin_lock_irqsave(&scc->zlock, flags); + + zport->regs[5] &= ~TxENAB; + zport->regs[3] &= ~RxENABLE; + write_zsreg(zport, R5, zport->regs[5]); + write_zsreg(zport, R3, zport->regs[3]); + + spin_unlock_irqrestore(&scc->zlock, flags); + + irq_guard = atomic_add_return(-1, &scc->irq_guard); + if (!irq_guard) + free_irq(zport->port.irq, scc); +} + + +static void zs_reset(struct zs_port *zport) +{ + struct zs_scc *scc = zport->scc; + int irq; + unsigned long flags; + + spin_lock_irqsave(&scc->zlock, flags); + irq = !irqs_disabled_flags(flags); + if (!scc->initialised) { + /* Reset the pointer first, just in case... */ + read_zsreg(zport, R0); + /* And let the current transmission finish. */ + zs_line_drain(zport, irq); + write_zsreg(zport, R9, FHWRES); + udelay(10); + write_zsreg(zport, R9, 0); + scc->initialised = 1; + } + load_zsregs(zport, zport->regs, irq); + spin_unlock_irqrestore(&scc->zlock, flags); +} + +static void zs_set_termios(struct uart_port *uport, struct ktermios *termios, + struct ktermios *old_termios) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + struct zs_port *zport_a = &scc->zport[ZS_CHAN_A]; + int irq; + unsigned int baud, brg; + unsigned long flags; + + spin_lock_irqsave(&scc->zlock, flags); + irq = !irqs_disabled_flags(flags); + + /* Byte size. */ + zport->regs[3] &= ~RxNBITS_MASK; + zport->regs[5] &= ~TxNBITS_MASK; + switch (termios->c_cflag & CSIZE) { + case CS5: + zport->regs[3] |= Rx5; + zport->regs[5] |= Tx5; + break; + case CS6: + zport->regs[3] |= Rx6; + zport->regs[5] |= Tx6; + break; + case CS7: + zport->regs[3] |= Rx7; + zport->regs[5] |= Tx7; + break; + case CS8: + default: + zport->regs[3] |= Rx8; + zport->regs[5] |= Tx8; + break; + } + + /* Parity and stop bits. */ + zport->regs[4] &= ~(XCLK_MASK | SB_MASK | PAR_ENA | PAR_EVEN); + if (termios->c_cflag & CSTOPB) + zport->regs[4] |= SB2; + else + zport->regs[4] |= SB1; + if (termios->c_cflag & PARENB) + zport->regs[4] |= PAR_ENA; + if (!(termios->c_cflag & PARODD)) + zport->regs[4] |= PAR_EVEN; + switch (zport->clk_mode) { + case 64: + zport->regs[4] |= X64CLK; + break; + case 32: + zport->regs[4] |= X32CLK; + break; + case 16: + zport->regs[4] |= X16CLK; + break; + case 1: + zport->regs[4] |= X1CLK; + break; + default: + BUG(); + } + + baud = uart_get_baud_rate(uport, termios, old_termios, 0, + uport->uartclk / zport->clk_mode / 4); + + brg = ZS_BPS_TO_BRG(baud, uport->uartclk / zport->clk_mode); + zport->regs[12] = brg & 0xff; + zport->regs[13] = (brg >> 8) & 0xff; + + uart_update_timeout(uport, termios->c_cflag, baud); + + uport->read_status_mask = Rx_OVR; + if (termios->c_iflag & INPCK) + uport->read_status_mask |= FRM_ERR | PAR_ERR; + if (termios->c_iflag & (BRKINT | PARMRK)) + uport->read_status_mask |= Rx_BRK; + + uport->ignore_status_mask = 0; + if (termios->c_iflag & IGNPAR) + uport->ignore_status_mask |= FRM_ERR | PAR_ERR; + if (termios->c_iflag & IGNBRK) { + uport->ignore_status_mask |= Rx_BRK; + if (termios->c_iflag & IGNPAR) + uport->ignore_status_mask |= Rx_OVR; + } + + if (termios->c_cflag & CREAD) + zport->regs[3] |= RxENABLE; + else + zport->regs[3] &= ~RxENABLE; + + if (zport != zport_a) { + if (!(termios->c_cflag & CLOCAL)) { + zport->regs[15] |= DCDIE; + } else + zport->regs[15] &= ~DCDIE; + if (termios->c_cflag & CRTSCTS) { + zport->regs[15] |= CTSIE; + } else + zport->regs[15] &= ~CTSIE; + zs_raw_xor_mctrl(zport); + } + + /* Load up the new values. */ + load_zsregs(zport, zport->regs, irq); + + spin_unlock_irqrestore(&scc->zlock, flags); +} + + +static const char *zs_type(struct uart_port *uport) +{ + return "Z85C30 SCC"; +} + +static void zs_release_port(struct uart_port *uport) +{ + iounmap(uport->membase); + uport->membase = 0; + release_mem_region(uport->mapbase, ZS_CHAN_IO_SIZE); +} + +static int zs_map_port(struct uart_port *uport) +{ + if (!uport->membase) + uport->membase = ioremap_nocache(uport->mapbase, + ZS_CHAN_IO_SIZE); + if (!uport->membase) { + printk(KERN_ERR "zs: Cannot map MMIO\n"); + return -ENOMEM; + } + return 0; +} + +static int zs_request_port(struct uart_port *uport) +{ + int ret; + + if (!request_mem_region(uport->mapbase, ZS_CHAN_IO_SIZE, "scc")) { + printk(KERN_ERR "zs: Unable to reserve MMIO resource\n"); + return -EBUSY; + } + ret = zs_map_port(uport); + if (ret) { + release_mem_region(uport->mapbase, ZS_CHAN_IO_SIZE); + return ret; + } + return 0; +} + +static void zs_config_port(struct uart_port *uport, int flags) +{ + struct zs_port *zport = to_zport(uport); + + if (flags & UART_CONFIG_TYPE) { + if (zs_request_port(uport)) + return; + + uport->type = PORT_ZS; + + zs_reset(zport); + } +} + +static int zs_verify_port(struct uart_port *uport, struct serial_struct *ser) +{ + struct zs_port *zport = to_zport(uport); + int ret = 0; + + if (ser->type != PORT_UNKNOWN && ser->type != PORT_ZS) + ret = -EINVAL; + if (ser->irq != uport->irq) + ret = -EINVAL; + if (ser->baud_base != uport->uartclk / zport->clk_mode / 4) + ret = -EINVAL; + return ret; +} + + +static struct uart_ops zs_ops = { + .tx_empty = zs_tx_empty, + .set_mctrl = zs_set_mctrl, + .get_mctrl = zs_get_mctrl, + .stop_tx = zs_stop_tx, + .start_tx = zs_start_tx, + .stop_rx = zs_stop_rx, + .enable_ms = zs_enable_ms, + .break_ctl = zs_break_ctl, + .startup = zs_startup, + .shutdown = zs_shutdown, + .set_termios = zs_set_termios, + .type = zs_type, + .release_port = zs_release_port, + .request_port = zs_request_port, + .config_port = zs_config_port, + .verify_port = zs_verify_port, +}; + +/* + * Initialize Z85C30 port structures. + */ +static int __init zs_probe_sccs(void) +{ + static int probed; + struct zs_parms zs_parms; + int chip, side, irq; + int n_chips = 0; + int i; + + if (probed) + return 0; + + irq = dec_interrupt[DEC_IRQ_SCC0]; + if (irq >= 0) { + zs_parms.scc[n_chips] = IOASIC_SCC0; + zs_parms.irq[n_chips] = dec_interrupt[DEC_IRQ_SCC0]; + n_chips++; + } + irq = dec_interrupt[DEC_IRQ_SCC1]; + if (irq >= 0) { + zs_parms.scc[n_chips] = IOASIC_SCC1; + zs_parms.irq[n_chips] = dec_interrupt[DEC_IRQ_SCC1]; + n_chips++; + } + if (!n_chips) + return -ENXIO; + + probed = 1; + + for (chip = 0; chip < n_chips; chip++) { + spin_lock_init(&zs_sccs[chip].zlock); + for (side = 0; side < ZS_NUM_CHAN; side++) { + struct zs_port *zport = &zs_sccs[chip].zport[side]; + struct uart_port *uport = &zport->port; + + zport->scc = &zs_sccs[chip]; + zport->clk_mode = 16; + + uport->irq = zs_parms.irq[chip]; + uport->uartclk = ZS_CLOCK; + uport->fifosize = 1; + uport->iotype = UPIO_MEM; + uport->flags = UPF_BOOT_AUTOCONF; + uport->ops = &zs_ops; + uport->line = chip * ZS_NUM_CHAN + side; + uport->mapbase = dec_kn_slot_base + + zs_parms.scc[chip] + + (side ^ ZS_CHAN_B) * ZS_CHAN_IO_SIZE; + + for (i = 0; i < ZS_NUM_REGS; i++) + zport->regs[i] = zs_init_regs[i]; + } + } + + return 0; +} + + +#ifdef CONFIG_SERIAL_ZS_CONSOLE +static void zs_console_putchar(struct uart_port *uport, int ch) +{ + struct zs_port *zport = to_zport(uport); + struct zs_scc *scc = zport->scc; + int irq; + unsigned long flags; + + spin_lock_irqsave(&scc->zlock, flags); + irq = !irqs_disabled_flags(flags); + if (zs_transmit_drain(zport, irq)) + write_zsdata(zport, ch); + spin_unlock_irqrestore(&scc->zlock, flags); +} + +/* + * Print a string to the serial port trying not to disturb + * any possible real use of the port... + */ +static void zs_console_write(struct console *co, const char *s, + unsigned int count) +{ + int chip = co->index / ZS_NUM_CHAN, side = co->index % ZS_NUM_CHAN; + struct zs_port *zport = &zs_sccs[chip].zport[side]; + struct zs_scc *scc = zport->scc; + unsigned long flags; + u8 txint, txenb; + int irq; + + /* Disable transmit interrupts and enable the transmitter. */ + spin_lock_irqsave(&scc->zlock, flags); + txint = zport->regs[1]; + txenb = zport->regs[5]; + if (txint & TxINT_ENAB) { + zport->regs[1] = txint & ~TxINT_ENAB; + write_zsreg(zport, R1, zport->regs[1]); + } + if (!(txenb & TxENAB)) { + zport->regs[5] = txenb | TxENAB; + write_zsreg(zport, R5, zport->regs[5]); + } + spin_unlock_irqrestore(&scc->zlock, flags); + + uart_console_write(&zport->port, s, count, zs_console_putchar); + + /* Restore transmit interrupts and the transmitter enable. */ + spin_lock_irqsave(&scc->zlock, flags); + irq = !irqs_disabled_flags(flags); + zs_line_drain(zport, irq); + if (!(txenb & TxENAB)) { + zport->regs[5] &= ~TxENAB; + write_zsreg(zport, R5, zport->regs[5]); + } + if (txint & TxINT_ENAB) { + zport->regs[1] |= TxINT_ENAB; + write_zsreg(zport, R1, zport->regs[1]); + } + spin_unlock_irqrestore(&scc->zlock, flags); +} + +/* + * Setup serial console baud/bits/parity. We do two things here: + * - construct a cflag setting for the first uart_open() + * - initialise the serial port + * Return non-zero if we didn't find a serial port. + */ +static int __init zs_console_setup(struct console *co, char *options) +{ + int chip = co->index / ZS_NUM_CHAN, side = co->index % ZS_NUM_CHAN; + struct zs_port *zport = &zs_sccs[chip].zport[side]; + struct uart_port *uport = &zport->port; + int baud = 9600; + int bits = 8; + int parity = 'n'; + int flow = 'n'; + int ret; + + ret = zs_map_port(uport); + if (ret) + return ret; + + zs_reset(zport); + + if (options) + uart_parse_options(options, &baud, &parity, &bits, &flow); + return uart_set_options(uport, co, baud, parity, bits, flow); +} + +static struct uart_driver zs_reg; +static struct console zs_console = { + .name = "ttyS", + .write = zs_console_write, + .device = uart_console_device, + .setup = zs_console_setup, + .flags = CON_PRINTBUFFER, + .index = -1, + .data = &zs_reg, +}; + +/* + * Register console. + */ +static int __init zs_serial_console_init(void) +{ + int ret; + + ret = zs_probe_sccs(); + if (ret) + return ret; + register_console(&zs_console); + + return 0; +} + +console_initcall(zs_serial_console_init); + +#define SERIAL_ZS_CONSOLE &zs_console +#else +#define SERIAL_ZS_CONSOLE NULL +#endif /* CONFIG_SERIAL_ZS_CONSOLE */ + +static struct uart_driver zs_reg = { + .owner = THIS_MODULE, + .driver_name = "serial", + .dev_name = "ttyS", + .major = TTY_MAJOR, + .minor = 64, + .nr = ZS_NUM_SCCS * ZS_NUM_CHAN, + .cons = SERIAL_ZS_CONSOLE, +}; + +/* zs_init inits the driver. */ +static int __init zs_init(void) +{ + int i, ret; + + pr_info("%s%s\n", zs_name, zs_version); + + /* Find out how many Z85C30 SCCs we have. */ + ret = zs_probe_sccs(); + if (ret) + return ret; + + ret = uart_register_driver(&zs_reg); + if (ret) + return ret; + + for (i = 0; i < ZS_NUM_SCCS * ZS_NUM_CHAN; i++) { + struct zs_scc *scc = &zs_sccs[i / ZS_NUM_CHAN]; + struct zs_port *zport = &scc->zport[i % ZS_NUM_CHAN]; + struct uart_port *uport = &zport->port; + + if (zport->scc) + uart_add_one_port(&zs_reg, uport); + } + + return 0; +} + +static void __exit zs_exit(void) +{ + int i; + + for (i = ZS_NUM_SCCS * ZS_NUM_CHAN - 1; i >= 0; i--) { + struct zs_scc *scc = &zs_sccs[i / ZS_NUM_CHAN]; + struct zs_port *zport = &scc->zport[i % ZS_NUM_CHAN]; + struct uart_port *uport = &zport->port; + + if (zport->scc) + uart_remove_one_port(&zs_reg, uport); + } + + uart_unregister_driver(&zs_reg); +} + +module_init(zs_init); +module_exit(zs_exit); diff --git a/drivers/serial/zs.h b/drivers/serial/zs.h new file mode 100644 index 000000000000..aa921b57d827 --- /dev/null +++ b/drivers/serial/zs.h @@ -0,0 +1,284 @@ +/* + * zs.h: Definitions for the DECstation Z85C30 serial driver. + * + * Adapted from drivers/sbus/char/sunserial.h by Paul Mackerras. + * Adapted from drivers/macintosh/macserial.h by Harald Koerfgen. + * + * Copyright (C) 1996 Paul Mackerras (Paul.Mackerras@cs.anu.edu.au) + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 2004, 2005, 2007 Maciej W. Rozycki + */ +#ifndef _SERIAL_ZS_H +#define _SERIAL_ZS_H + +#ifdef __KERNEL__ + +#define ZS_NUM_REGS 16 + +/* + * This is our internal structure for each serial port's state. + */ +struct zs_port { + struct zs_scc *scc; /* Containing SCC. */ + struct uart_port port; /* Underlying UART. */ + + int clk_mode; /* May be 1, 16, 32, or 64. */ + + unsigned int tty_break; /* Set on BREAK condition. */ + int tx_stopped; /* Output is suspended. */ + + unsigned int mctrl; /* State of modem lines. */ + u8 brk; /* BREAK state from RR0. */ + + u8 regs[ZS_NUM_REGS]; /* Channel write registers. */ +}; + +/* + * Per-SCC state for locking and the interrupt handler. + */ +struct zs_scc { + struct zs_port zport[2]; + spinlock_t zlock; + atomic_t irq_guard; + int initialised; +}; + +#endif /* __KERNEL__ */ + +/* + * Conversion routines to/from brg time constants from/to bits per second. + */ +#define ZS_BRG_TO_BPS(brg, freq) ((freq) / 2 / ((brg) + 2)) +#define ZS_BPS_TO_BRG(bps, freq) ((((freq) + (bps)) / (2 * (bps))) - 2) + +/* + * The Zilog register set. + */ + +/* Write Register 0 (Command) */ +#define R0 0 /* Register selects */ +#define R1 1 +#define R2 2 +#define R3 3 +#define R4 4 +#define R5 5 +#define R6 6 +#define R7 7 +#define R8 8 +#define R9 9 +#define R10 10 +#define R11 11 +#define R12 12 +#define R13 13 +#define R14 14 +#define R15 15 + +#define NULLCODE 0 /* Null Code */ +#define POINT_HIGH 0x8 /* Select upper half of registers */ +#define RES_EXT_INT 0x10 /* Reset Ext. Status Interrupts */ +#define SEND_ABORT 0x18 /* HDLC Abort */ +#define RES_RxINT_FC 0x20 /* Reset RxINT on First Character */ +#define RES_Tx_P 0x28 /* Reset TxINT Pending */ +#define ERR_RES 0x30 /* Error Reset */ +#define RES_H_IUS 0x38 /* Reset highest IUS */ + +#define RES_Rx_CRC 0x40 /* Reset Rx CRC Checker */ +#define RES_Tx_CRC 0x80 /* Reset Tx CRC Checker */ +#define RES_EOM_L 0xC0 /* Reset EOM latch */ + +/* Write Register 1 (Tx/Rx/Ext Int Enable and WAIT/DMA Commands) */ +#define EXT_INT_ENAB 0x1 /* Ext Int Enable */ +#define TxINT_ENAB 0x2 /* Tx Int Enable */ +#define PAR_SPEC 0x4 /* Parity is special condition */ + +#define RxINT_DISAB 0 /* Rx Int Disable */ +#define RxINT_FCERR 0x8 /* Rx Int on First Character Only or Error */ +#define RxINT_ALL 0x10 /* Int on all Rx Characters or error */ +#define RxINT_ERR 0x18 /* Int on error only */ +#define RxINT_MASK 0x18 + +#define WT_RDY_RT 0x20 /* Wait/Ready on R/T */ +#define WT_FN_RDYFN 0x40 /* Wait/FN/Ready FN */ +#define WT_RDY_ENAB 0x80 /* Wait/Ready Enable */ + +/* Write Register 2 (Interrupt Vector) */ + +/* Write Register 3 (Receive Parameters and Control) */ +#define RxENABLE 0x1 /* Rx Enable */ +#define SYNC_L_INH 0x2 /* Sync Character Load Inhibit */ +#define ADD_SM 0x4 /* Address Search Mode (SDLC) */ +#define RxCRC_ENAB 0x8 /* Rx CRC Enable */ +#define ENT_HM 0x10 /* Enter Hunt Mode */ +#define AUTO_ENAB 0x20 /* Auto Enables */ +#define Rx5 0x0 /* Rx 5 Bits/Character */ +#define Rx7 0x40 /* Rx 7 Bits/Character */ +#define Rx6 0x80 /* Rx 6 Bits/Character */ +#define Rx8 0xc0 /* Rx 8 Bits/Character */ +#define RxNBITS_MASK 0xc0 + +/* Write Register 4 (Transmit/Receive Miscellaneous Parameters and Modes) */ +#define PAR_ENA 0x1 /* Parity Enable */ +#define PAR_EVEN 0x2 /* Parity Even/Odd* */ + +#define SYNC_ENAB 0 /* Sync Modes Enable */ +#define SB1 0x4 /* 1 stop bit/char */ +#define SB15 0x8 /* 1.5 stop bits/char */ +#define SB2 0xc /* 2 stop bits/char */ +#define SB_MASK 0xc + +#define MONSYNC 0 /* 8 Bit Sync character */ +#define BISYNC 0x10 /* 16 bit sync character */ +#define SDLC 0x20 /* SDLC Mode (01111110 Sync Flag) */ +#define EXTSYNC 0x30 /* External Sync Mode */ + +#define X1CLK 0x0 /* x1 clock mode */ +#define X16CLK 0x40 /* x16 clock mode */ +#define X32CLK 0x80 /* x32 clock mode */ +#define X64CLK 0xc0 /* x64 clock mode */ +#define XCLK_MASK 0xc0 + +/* Write Register 5 (Transmit Parameters and Controls) */ +#define TxCRC_ENAB 0x1 /* Tx CRC Enable */ +#define RTS 0x2 /* RTS */ +#define SDLC_CRC 0x4 /* SDLC/CRC-16 */ +#define TxENAB 0x8 /* Tx Enable */ +#define SND_BRK 0x10 /* Send Break */ +#define Tx5 0x0 /* Tx 5 bits (or less)/character */ +#define Tx7 0x20 /* Tx 7 bits/character */ +#define Tx6 0x40 /* Tx 6 bits/character */ +#define Tx8 0x60 /* Tx 8 bits/character */ +#define TxNBITS_MASK 0x60 +#define DTR 0x80 /* DTR */ + +/* Write Register 6 (Sync bits 0-7/SDLC Address Field) */ + +/* Write Register 7 (Sync bits 8-15/SDLC 01111110) */ + +/* Write Register 8 (Transmit Buffer) */ + +/* Write Register 9 (Master Interrupt Control) */ +#define VIS 1 /* Vector Includes Status */ +#define NV 2 /* No Vector */ +#define DLC 4 /* Disable Lower Chain */ +#define MIE 8 /* Master Interrupt Enable */ +#define STATHI 0x10 /* Status high */ +#define SOFTACK 0x20 /* Software Interrupt Acknowledge */ +#define NORESET 0 /* No reset on write to R9 */ +#define CHRB 0x40 /* Reset channel B */ +#define CHRA 0x80 /* Reset channel A */ +#define FHWRES 0xc0 /* Force hardware reset */ + +/* Write Register 10 (Miscellaneous Transmitter/Receiver Control Bits) */ +#define BIT6 1 /* 6 bit/8bit sync */ +#define LOOPMODE 2 /* SDLC Loop mode */ +#define ABUNDER 4 /* Abort/flag on SDLC xmit underrun */ +#define MARKIDLE 8 /* Mark/flag on idle */ +#define GAOP 0x10 /* Go active on poll */ +#define NRZ 0 /* NRZ mode */ +#define NRZI 0x20 /* NRZI mode */ +#define FM1 0x40 /* FM1 (transition = 1) */ +#define FM0 0x60 /* FM0 (transition = 0) */ +#define CRCPS 0x80 /* CRC Preset I/O */ + +/* Write Register 11 (Clock Mode Control) */ +#define TRxCXT 0 /* TRxC = Xtal output */ +#define TRxCTC 1 /* TRxC = Transmit clock */ +#define TRxCBR 2 /* TRxC = BR Generator Output */ +#define TRxCDP 3 /* TRxC = DPLL output */ +#define TRxCOI 4 /* TRxC O/I */ +#define TCRTxCP 0 /* Transmit clock = RTxC pin */ +#define TCTRxCP 8 /* Transmit clock = TRxC pin */ +#define TCBR 0x10 /* Transmit clock = BR Generator output */ +#define TCDPLL 0x18 /* Transmit clock = DPLL output */ +#define RCRTxCP 0 /* Receive clock = RTxC pin */ +#define RCTRxCP 0x20 /* Receive clock = TRxC pin */ +#define RCBR 0x40 /* Receive clock = BR Generator output */ +#define RCDPLL 0x60 /* Receive clock = DPLL output */ +#define RTxCX 0x80 /* RTxC Xtal/No Xtal */ + +/* Write Register 12 (Lower Byte of Baud Rate Generator Time Constant) */ + +/* Write Register 13 (Upper Byte of Baud Rate Generator Time Constant) */ + +/* Write Register 14 (Miscellaneous Control Bits) */ +#define BRENABL 1 /* Baud rate generator enable */ +#define BRSRC 2 /* Baud rate generator source */ +#define DTRREQ 4 /* DTR/Request function */ +#define AUTOECHO 8 /* Auto Echo */ +#define LOOPBAK 0x10 /* Local loopback */ +#define SEARCH 0x20 /* Enter search mode */ +#define RMC 0x40 /* Reset missing clock */ +#define DISDPLL 0x60 /* Disable DPLL */ +#define SSBR 0x80 /* Set DPLL source = BR generator */ +#define SSRTxC 0xa0 /* Set DPLL source = RTxC */ +#define SFMM 0xc0 /* Set FM mode */ +#define SNRZI 0xe0 /* Set NRZI mode */ + +/* Write Register 15 (External/Status Interrupt Control) */ +#define WR7P_EN 1 /* WR7 Prime SDLC Feature Enable */ +#define ZCIE 2 /* Zero count IE */ +#define DCDIE 8 /* DCD IE */ +#define SYNCIE 0x10 /* Sync/hunt IE */ +#define CTSIE 0x20 /* CTS IE */ +#define TxUIE 0x40 /* Tx Underrun/EOM IE */ +#define BRKIE 0x80 /* Break/Abort IE */ + + +/* Read Register 0 (Transmit/Receive Buffer Status and External Status) */ +#define Rx_CH_AV 0x1 /* Rx Character Available */ +#define ZCOUNT 0x2 /* Zero count */ +#define Tx_BUF_EMP 0x4 /* Tx Buffer empty */ +#define DCD 0x8 /* DCD */ +#define SYNC_HUNT 0x10 /* Sync/hunt */ +#define CTS 0x20 /* CTS */ +#define TxEOM 0x40 /* Tx underrun */ +#define BRK_ABRT 0x80 /* Break/Abort */ + +/* Read Register 1 (Special Receive Condition Status) */ +#define ALL_SNT 0x1 /* All sent */ +/* Residue Data for 8 Rx bits/char programmed */ +#define RES3 0x8 /* 0/3 */ +#define RES4 0x4 /* 0/4 */ +#define RES5 0xc /* 0/5 */ +#define RES6 0x2 /* 0/6 */ +#define RES7 0xa /* 0/7 */ +#define RES8 0x6 /* 0/8 */ +#define RES18 0xe /* 1/8 */ +#define RES28 0x0 /* 2/8 */ +/* Special Rx Condition Interrupts */ +#define PAR_ERR 0x10 /* Parity Error */ +#define Rx_OVR 0x20 /* Rx Overrun Error */ +#define FRM_ERR 0x40 /* CRC/Framing Error */ +#define END_FR 0x80 /* End of Frame (SDLC) */ + +/* Read Register 2 (Interrupt Vector (WR2) -- channel A). */ + +/* Read Register 2 (Modified Interrupt Vector -- channel B). */ + +/* Read Register 3 (Interrupt Pending Bits -- channel A only). */ +#define CHBEXT 0x1 /* Channel B Ext/Stat IP */ +#define CHBTxIP 0x2 /* Channel B Tx IP */ +#define CHBRxIP 0x4 /* Channel B Rx IP */ +#define CHAEXT 0x8 /* Channel A Ext/Stat IP */ +#define CHATxIP 0x10 /* Channel A Tx IP */ +#define CHARxIP 0x20 /* Channel A Rx IP */ + +/* Read Register 6 (SDLC FIFO Status and Byte Count LSB) */ + +/* Read Register 7 (SDLC FIFO Status and Byte Count MSB) */ + +/* Read Register 8 (Receive Data) */ + +/* Read Register 10 (Miscellaneous Status Bits) */ +#define ONLOOP 2 /* On loop */ +#define LOOPSEND 0x10 /* Loop sending */ +#define CLK2MIS 0x40 /* Two clocks missing */ +#define CLK1MIS 0x80 /* One clock missing */ + +/* Read Register 12 (Lower Byte of Baud Rate Generator Constant (WR12)) */ + +/* Read Register 13 (Upper Byte of Baud Rate Generator Constant (WR13) */ + +/* Read Register 15 (External/Status Interrupt Control (WR15)) */ + +#endif /* _SERIAL_ZS_H */ diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c index 94b229031198..7d873b3b0513 100644 --- a/drivers/sh/superhyway/superhyway.c +++ b/drivers/sh/superhyway/superhyway.c @@ -56,11 +56,10 @@ int superhyway_add_device(unsigned long base, struct superhyway_device *sdev, struct superhyway_device *dev = sdev; if (!dev) { - dev = kmalloc(sizeof(struct superhyway_device), GFP_KERNEL); + dev = kzalloc(sizeof(struct superhyway_device), GFP_KERNEL); if (!dev) return -ENOMEM; - memset(dev, 0, sizeof(struct superhyway_device)); } dev->bus = bus; diff --git a/drivers/sn/ioc3.c b/drivers/sn/ioc3.c index 2dd6eed50aa0..29fcd6d0301d 100644 --- a/drivers/sn/ioc3.c +++ b/drivers/sn/ioc3.c @@ -629,7 +629,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) #endif /* Set up per-IOC3 data */ - idd = kmalloc(sizeof(struct ioc3_driver_data), GFP_KERNEL); + idd = kzalloc(sizeof(struct ioc3_driver_data), GFP_KERNEL); if (!idd) { printk(KERN_WARNING "%s: Failed to allocate IOC3 data for pci_dev %s.\n", @@ -637,7 +637,6 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) ret = -ENODEV; goto out_idd; } - memset(idd, 0, sizeof(struct ioc3_driver_data)); spin_lock_init(&idd->ir_lock); spin_lock_init(&idd->gpio_lock); idd->pdev = pdev; diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 5e3f748f2693..b91571122daa 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -107,6 +107,15 @@ config SPI_IMX This enables using the Freescale iMX SPI controller in master mode. +config SPI_LM70_LLP + tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" + depends on SPI_MASTER && PARPORT && EXPERIMENTAL + select SPI_BITBANG + help + This driver supports the NS LM70 LLP Evaluation Board, + which interfaces to an LM70 temperature sensor using + a parallel port. + config SPI_MPC52xx_PSC tristate "Freescale MPC52xx PSC SPI controller" depends on SPI_MASTER && PPC_MPC52xx && EXPERIMENTAL @@ -133,6 +142,12 @@ config SPI_OMAP_UWIRE help This hooks up to the MicroWire controller on OMAP1 chips. +config SPI_OMAP24XX + tristate "McSPI driver for OMAP24xx" + depends on SPI_MASTER && ARCH_OMAP24XX + help + SPI master controller for OMAP24xx Multichannel SPI + (McSPI) modules. config SPI_PXA2XX tristate "PXA2xx SSP SPI master" @@ -145,17 +160,36 @@ config SPI_PXA2XX config SPI_S3C24XX tristate "Samsung S3C24XX series SPI" depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL + select SPI_BITBANG help SPI driver for Samsung S3C24XX series ARM SoCs config SPI_S3C24XX_GPIO tristate "Samsung S3C24XX series SPI by GPIO" - depends on SPI_MASTER && ARCH_S3C2410 && SPI_BITBANG && EXPERIMENTAL + depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL + select SPI_BITBANG help SPI driver for Samsung S3C24XX series ARM SoCs using GPIO lines to provide the SPI bus. This can be used where the inbuilt hardware cannot provide the transfer mode, or where the board is using non hardware connected pins. + +config SPI_TXX9 + tristate "Toshiba TXx9 SPI controller" + depends on SPI_MASTER && GENERIC_GPIO && CPU_TX49XX + help + SPI driver for Toshiba TXx9 MIPS SoCs + +config SPI_XILINX + tristate "Xilinx SPI controller" + depends on SPI_MASTER && XILINX_VIRTEX && EXPERIMENTAL + select SPI_BITBANG + help + This exposes the SPI controller IP from the Xilinx EDK. + + See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" + Product Specification document (DS464) for hardware details. + # # Add new SPI master controllers in alphabetical order above this line # @@ -187,6 +221,15 @@ config SPI_SPIDEV Note that this application programming interface is EXPERIMENTAL and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. +config SPI_TLE62X0 + tristate "Infineon TLE62X0 (for power switching)" + depends on SPI_MASTER && SYSFS + help + SPI driver for Infineon TLE62X0 series line driver chips, + such as the TLE6220, TLE6230 and TLE6240. This provides a + sysfs interface, with each line presented as a kind of GPIO + exposing both switch control and diagnostic feedback. + # # Add new SPI protocol masters in alphabetical order above this line # diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 5788d867de84..41fbac45c323 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -17,17 +17,22 @@ obj-$(CONFIG_SPI_BITBANG) += spi_bitbang.o obj-$(CONFIG_SPI_AU1550) += au1550_spi.o obj-$(CONFIG_SPI_BUTTERFLY) += spi_butterfly.o obj-$(CONFIG_SPI_IMX) += spi_imx.o +obj-$(CONFIG_SPI_LM70_LLP) += spi_lm70llp.o obj-$(CONFIG_SPI_PXA2XX) += pxa2xx_spi.o obj-$(CONFIG_SPI_OMAP_UWIRE) += omap_uwire.o +obj-$(CONFIG_SPI_OMAP24XX) += omap2_mcspi.o obj-$(CONFIG_SPI_MPC52xx_PSC) += mpc52xx_psc_spi.o obj-$(CONFIG_SPI_MPC83xx) += spi_mpc83xx.o obj-$(CONFIG_SPI_S3C24XX_GPIO) += spi_s3c24xx_gpio.o obj-$(CONFIG_SPI_S3C24XX) += spi_s3c24xx.o +obj-$(CONFIG_SPI_TXX9) += spi_txx9.o +obj-$(CONFIG_SPI_XILINX) += xilinx_spi.o # ... add above this line ... # SPI protocol drivers (device/link on bus) obj-$(CONFIG_SPI_AT25) += at25.o obj-$(CONFIG_SPI_SPIDEV) += spidev.o +obj-$(CONFIG_SPI_TLE62X0) += tle62x0.o # ... add above this line ... # SPI slave controller drivers (upstream link) diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c index 8b2601de3630..ad144054da30 100644 --- a/drivers/spi/atmel_spi.c +++ b/drivers/spi/atmel_spi.c @@ -46,6 +46,7 @@ struct atmel_spi { struct clk *clk; struct platform_device *pdev; unsigned new_1:1; + struct spi_device *stay; u8 stopping; struct list_head queue; @@ -62,29 +63,62 @@ struct atmel_spi { /* * Earlier SPI controllers (e.g. on at91rm9200) have a design bug whereby * they assume that spi slave device state will not change on deselect, so - * that automagic deselection is OK. Not so! Workaround uses nCSx pins - * as GPIOs; or newer controllers have CSAAT and friends. + * that automagic deselection is OK. ("NPCSx rises if no data is to be + * transmitted") Not so! Workaround uses nCSx pins as GPIOs; or newer + * controllers have CSAAT and friends. * - * Since the CSAAT functionality is a bit weird on newer controllers - * as well, we use GPIO to control nCSx pins on all controllers. + * Since the CSAAT functionality is a bit weird on newer controllers as + * well, we use GPIO to control nCSx pins on all controllers, updating + * MR.PCS to avoid confusing the controller. Using GPIOs also lets us + * support active-high chipselects despite the controller's belief that + * only active-low devices/systems exists. + * + * However, at91rm9200 has a second erratum whereby nCS0 doesn't work + * right when driven with GPIO. ("Mode Fault does not allow more than one + * Master on Chip Select 0.") No workaround exists for that ... so for + * nCS0 on that chip, we (a) don't use the GPIO, (b) can't support CS_HIGH, + * and (c) will trigger that first erratum in some cases. */ -static inline void cs_activate(struct spi_device *spi) +static void cs_activate(struct atmel_spi *as, struct spi_device *spi) { unsigned gpio = (unsigned) spi->controller_data; unsigned active = spi->mode & SPI_CS_HIGH; + u32 mr; + + mr = spi_readl(as, MR); + mr = SPI_BFINS(PCS, ~(1 << spi->chip_select), mr); - dev_dbg(&spi->dev, "activate %u%s\n", gpio, active ? " (high)" : ""); - gpio_set_value(gpio, active); + dev_dbg(&spi->dev, "activate %u%s, mr %08x\n", + gpio, active ? " (high)" : "", + mr); + + if (!(cpu_is_at91rm9200() && spi->chip_select == 0)) + gpio_set_value(gpio, active); + spi_writel(as, MR, mr); } -static inline void cs_deactivate(struct spi_device *spi) +static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi) { unsigned gpio = (unsigned) spi->controller_data; unsigned active = spi->mode & SPI_CS_HIGH; + u32 mr; - dev_dbg(&spi->dev, "DEactivate %u%s\n", gpio, active ? " (low)" : ""); - gpio_set_value(gpio, !active); + /* only deactivate *this* device; sometimes transfers to + * another device may be active when this routine is called. + */ + mr = spi_readl(as, MR); + if (~SPI_BFEXT(PCS, mr) & (1 << spi->chip_select)) { + mr = SPI_BFINS(PCS, 0xf, mr); + spi_writel(as, MR, mr); + } + + dev_dbg(&spi->dev, "DEactivate %u%s, mr %08x\n", + gpio, active ? " (low)" : "", + mr); + + if (!(cpu_is_at91rm9200() && spi->chip_select == 0)) + gpio_set_value(gpio, !active); } /* @@ -140,6 +174,7 @@ static void atmel_spi_next_xfer(struct spi_master *master, /* REVISIT: when xfer->delay_usecs == 0, the PDC "next transfer" * mechanism might help avoid the IRQ latency between transfers + * (and improve the nCS0 errata handling on at91rm9200 chips) * * We're also waiting for ENDRX before we start the next * transfer because we need to handle some difficult timing @@ -169,33 +204,62 @@ static void atmel_spi_next_message(struct spi_master *master) { struct atmel_spi *as = spi_master_get_devdata(master); struct spi_message *msg; - u32 mr; + struct spi_device *spi; BUG_ON(as->current_transfer); msg = list_entry(as->queue.next, struct spi_message, queue); + spi = msg->spi; - /* Select the chip */ - mr = spi_readl(as, MR); - mr = SPI_BFINS(PCS, ~(1 << msg->spi->chip_select), mr); - spi_writel(as, MR, mr); - cs_activate(msg->spi); + dev_dbg(master->cdev.dev, "start message %p for %s\n", + msg, spi->dev.bus_id); + + /* select chip if it's not still active */ + if (as->stay) { + if (as->stay != spi) { + cs_deactivate(as, as->stay); + cs_activate(as, spi); + } + as->stay = NULL; + } else + cs_activate(as, spi); atmel_spi_next_xfer(master, msg); } -static void +/* + * For DMA, tx_buf/tx_dma have the same relationship as rx_buf/rx_dma: + * - The buffer is either valid for CPU access, else NULL + * - If the buffer is valid, so is its DMA addresss + * + * This driver manages the dma addresss unless message->is_dma_mapped. + */ +static int atmel_spi_dma_map_xfer(struct atmel_spi *as, struct spi_transfer *xfer) { + struct device *dev = &as->pdev->dev; + xfer->tx_dma = xfer->rx_dma = INVALID_DMA_ADDRESS; - if (xfer->tx_buf) - xfer->tx_dma = dma_map_single(&as->pdev->dev, + if (xfer->tx_buf) { + xfer->tx_dma = dma_map_single(dev, (void *) xfer->tx_buf, xfer->len, DMA_TO_DEVICE); - if (xfer->rx_buf) - xfer->rx_dma = dma_map_single(&as->pdev->dev, + if (dma_mapping_error(xfer->tx_dma)) + return -ENOMEM; + } + if (xfer->rx_buf) { + xfer->rx_dma = dma_map_single(dev, xfer->rx_buf, xfer->len, DMA_FROM_DEVICE); + if (dma_mapping_error(xfer->tx_dma)) { + if (xfer->tx_buf) + dma_unmap_single(dev, + xfer->tx_dma, xfer->len, + DMA_TO_DEVICE); + return -ENOMEM; + } + } + return 0; } static void atmel_spi_dma_unmap_xfer(struct spi_master *master, @@ -211,9 +275,13 @@ static void atmel_spi_dma_unmap_xfer(struct spi_master *master, static void atmel_spi_msg_done(struct spi_master *master, struct atmel_spi *as, - struct spi_message *msg, int status) + struct spi_message *msg, int status, int stay) { - cs_deactivate(msg->spi); + if (!stay || status < 0) + cs_deactivate(as, msg->spi); + else + as->stay = msg->spi; + list_del(&msg->queue); msg->status = status; @@ -303,7 +371,7 @@ atmel_spi_interrupt(int irq, void *dev_id) /* Clear any overrun happening while cleaning up */ spi_readl(as, SR); - atmel_spi_msg_done(master, as, msg, -EIO); + atmel_spi_msg_done(master, as, msg, -EIO, 0); } else if (pending & SPI_BIT(ENDRX)) { ret = IRQ_HANDLED; @@ -321,12 +389,13 @@ atmel_spi_interrupt(int irq, void *dev_id) if (msg->transfers.prev == &xfer->transfer_list) { /* report completed message */ - atmel_spi_msg_done(master, as, msg, 0); + atmel_spi_msg_done(master, as, msg, 0, + xfer->cs_change); } else { if (xfer->cs_change) { - cs_deactivate(msg->spi); + cs_deactivate(as, msg->spi); udelay(1); - cs_activate(msg->spi); + cs_activate(as, msg->spi); } /* @@ -350,6 +419,7 @@ atmel_spi_interrupt(int irq, void *dev_id) return ret; } +/* the spi->mode bits understood by this driver: */ #define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH) static int atmel_spi_setup(struct spi_device *spi) @@ -388,6 +458,14 @@ static int atmel_spi_setup(struct spi_device *spi) return -EINVAL; } + /* see notes above re chipselect */ + if (cpu_is_at91rm9200() + && spi->chip_select == 0 + && (spi->mode & SPI_CS_HIGH)) { + dev_dbg(&spi->dev, "setup: can't be active-high\n"); + return -EINVAL; + } + /* speed zero convention is used by some upper layers */ bus_hz = clk_get_rate(as->clk); if (spi->max_speed_hz) { @@ -397,8 +475,9 @@ static int atmel_spi_setup(struct spi_device *spi) scbr = ((bus_hz + spi->max_speed_hz - 1) / spi->max_speed_hz); if (scbr >= (1 << SPI_SCBR_SIZE)) { - dev_dbg(&spi->dev, "setup: %d Hz too slow, scbr %u\n", - spi->max_speed_hz, scbr); + dev_dbg(&spi->dev, + "setup: %d Hz too slow, scbr %u; min %ld Hz\n", + spi->max_speed_hz, scbr, bus_hz/255); return -EINVAL; } } else @@ -423,6 +502,14 @@ static int atmel_spi_setup(struct spi_device *spi) return ret; spi->controller_state = (void *)npcs_pin; gpio_direction_output(npcs_pin, !(spi->mode & SPI_CS_HIGH)); + } else { + unsigned long flags; + + spin_lock_irqsave(&as->lock, flags); + if (as->stay == spi) + as->stay = NULL; + cs_deactivate(as, spi); + spin_unlock_irqrestore(&as->lock, flags); } dev_dbg(&spi->dev, @@ -464,14 +551,22 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg) dev_dbg(&spi->dev, "no protocol options yet\n"); return -ENOPROTOOPT; } - } - /* scrub dcache "early" */ - if (!msg->is_dma_mapped) { - list_for_each_entry(xfer, &msg->transfers, transfer_list) - atmel_spi_dma_map_xfer(as, xfer); + /* + * DMA map early, for performance (empties dcache ASAP) and + * better fault reporting. This is a DMA-only driver. + * + * NOTE that if dma_unmap_single() ever starts to do work on + * platforms supported by this driver, we would need to clean + * up mappings for previously-mapped transfers. + */ + if (!msg->is_dma_mapped) { + if (atmel_spi_dma_map_xfer(as, xfer) < 0) + return -ENOMEM; + } } +#ifdef VERBOSE list_for_each_entry(xfer, &msg->transfers, transfer_list) { dev_dbg(controller, " xfer %p: len %u tx %p/%08x rx %p/%08x\n", @@ -479,6 +574,7 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg) xfer->tx_buf, xfer->tx_dma, xfer->rx_buf, xfer->rx_dma); } +#endif msg->status = -EINPROGRESS; msg->actual_length = 0; @@ -494,8 +590,21 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg) static void atmel_spi_cleanup(struct spi_device *spi) { - if (spi->controller_state) - gpio_free((unsigned int)spi->controller_data); + struct atmel_spi *as = spi_master_get_devdata(spi->master); + unsigned gpio = (unsigned) spi->controller_data; + unsigned long flags; + + if (!spi->controller_state) + return; + + spin_lock_irqsave(&as->lock, flags); + if (as->stay == spi) { + as->stay = NULL; + cs_deactivate(as, spi); + } + spin_unlock_irqrestore(&as->lock, flags); + + gpio_free(gpio); } /*-------------------------------------------------------------------------*/ @@ -536,6 +645,10 @@ static int __init atmel_spi_probe(struct platform_device *pdev) as = spi_master_get_devdata(master); + /* + * Scratch buffer is used for throwaway rx and tx data. + * It's coherent to minimize dcache pollution. + */ as->buffer = dma_alloc_coherent(&pdev->dev, BUFFER_SIZE, &as->buffer_dma, GFP_KERNEL); if (!as->buffer) diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c index ae2b1af0dba4..c47a650183a1 100644 --- a/drivers/spi/au1550_spi.c +++ b/drivers/spi/au1550_spi.c @@ -280,6 +280,9 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t) return 0; } +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST) + static int au1550_spi_setup(struct spi_device *spi) { struct au1550_spi *hw = spi_master_get_devdata(spi->master); @@ -292,6 +295,12 @@ static int au1550_spi_setup(struct spi_device *spi) return -EINVAL; } + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); + return -EINVAL; + } + if (spi->max_speed_hz == 0) spi->max_speed_hz = hw->freq_max; if (spi->max_speed_hz > hw->freq_max diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c index 11f36bef3057..d2a4b2bdb07b 100644 --- a/drivers/spi/mpc52xx_psc_spi.c +++ b/drivers/spi/mpc52xx_psc_spi.c @@ -270,6 +270,9 @@ static void mpc52xx_psc_spi_work(struct work_struct *work) spin_unlock_irq(&mps->lock); } +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST) + static int mpc52xx_psc_spi_setup(struct spi_device *spi) { struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master); @@ -279,6 +282,12 @@ static int mpc52xx_psc_spi_setup(struct spi_device *spi) if (spi->bits_per_word%8) return -EINVAL; + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); + return -EINVAL; + } + if (!cs) { cs = kzalloc(sizeof *cs, GFP_KERNEL); if (!cs) diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c new file mode 100644 index 000000000000..6b357cdb9ea3 --- /dev/null +++ b/drivers/spi/omap2_mcspi.c @@ -0,0 +1,1081 @@ +/* + * OMAP2 McSPI controller driver + * + * Copyright (C) 2005, 2006 Nokia Corporation + * Author: Samuel Ortiz <samuel.ortiz@nokia.com> and + * Juha Yrjölä <juha.yrjola@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include <linux/spi/spi.h> + +#include <asm/arch/dma.h> +#include <asm/arch/clock.h> + + +#define OMAP2_MCSPI_MAX_FREQ 48000000 + +#define OMAP2_MCSPI_REVISION 0x00 +#define OMAP2_MCSPI_SYSCONFIG 0x10 +#define OMAP2_MCSPI_SYSSTATUS 0x14 +#define OMAP2_MCSPI_IRQSTATUS 0x18 +#define OMAP2_MCSPI_IRQENABLE 0x1c +#define OMAP2_MCSPI_WAKEUPENABLE 0x20 +#define OMAP2_MCSPI_SYST 0x24 +#define OMAP2_MCSPI_MODULCTRL 0x28 + +/* per-channel banks, 0x14 bytes each, first is: */ +#define OMAP2_MCSPI_CHCONF0 0x2c +#define OMAP2_MCSPI_CHSTAT0 0x30 +#define OMAP2_MCSPI_CHCTRL0 0x34 +#define OMAP2_MCSPI_TX0 0x38 +#define OMAP2_MCSPI_RX0 0x3c + +/* per-register bitmasks: */ + +#define OMAP2_MCSPI_SYSCONFIG_AUTOIDLE (1 << 0) +#define OMAP2_MCSPI_SYSCONFIG_SOFTRESET (1 << 1) + +#define OMAP2_MCSPI_SYSSTATUS_RESETDONE (1 << 0) + +#define OMAP2_MCSPI_MODULCTRL_SINGLE (1 << 0) +#define OMAP2_MCSPI_MODULCTRL_MS (1 << 2) +#define OMAP2_MCSPI_MODULCTRL_STEST (1 << 3) + +#define OMAP2_MCSPI_CHCONF_PHA (1 << 0) +#define OMAP2_MCSPI_CHCONF_POL (1 << 1) +#define OMAP2_MCSPI_CHCONF_CLKD_MASK (0x0f << 2) +#define OMAP2_MCSPI_CHCONF_EPOL (1 << 6) +#define OMAP2_MCSPI_CHCONF_WL_MASK (0x1f << 7) +#define OMAP2_MCSPI_CHCONF_TRM_RX_ONLY (0x01 << 12) +#define OMAP2_MCSPI_CHCONF_TRM_TX_ONLY (0x02 << 12) +#define OMAP2_MCSPI_CHCONF_TRM_MASK (0x03 << 12) +#define OMAP2_MCSPI_CHCONF_DMAW (1 << 14) +#define OMAP2_MCSPI_CHCONF_DMAR (1 << 15) +#define OMAP2_MCSPI_CHCONF_DPE0 (1 << 16) +#define OMAP2_MCSPI_CHCONF_DPE1 (1 << 17) +#define OMAP2_MCSPI_CHCONF_IS (1 << 18) +#define OMAP2_MCSPI_CHCONF_TURBO (1 << 19) +#define OMAP2_MCSPI_CHCONF_FORCE (1 << 20) + +#define OMAP2_MCSPI_CHSTAT_RXS (1 << 0) +#define OMAP2_MCSPI_CHSTAT_TXS (1 << 1) +#define OMAP2_MCSPI_CHSTAT_EOT (1 << 2) + +#define OMAP2_MCSPI_CHCTRL_EN (1 << 0) + + +/* We have 2 DMA channels per CS, one for RX and one for TX */ +struct omap2_mcspi_dma { + int dma_tx_channel; + int dma_rx_channel; + + int dma_tx_sync_dev; + int dma_rx_sync_dev; + + struct completion dma_tx_completion; + struct completion dma_rx_completion; +}; + +/* use PIO for small transfers, avoiding DMA setup/teardown overhead and + * cache operations; better heuristics consider wordsize and bitrate. + */ +#define DMA_MIN_BYTES 8 + + +struct omap2_mcspi { + struct work_struct work; + /* lock protects queue and registers */ + spinlock_t lock; + struct list_head msg_queue; + struct spi_master *master; + struct clk *ick; + struct clk *fck; + /* Virtual base address of the controller */ + void __iomem *base; + /* SPI1 has 4 channels, while SPI2 has 2 */ + struct omap2_mcspi_dma *dma_channels; +}; + +struct omap2_mcspi_cs { + void __iomem *base; + int word_len; +}; + +static struct workqueue_struct *omap2_mcspi_wq; + +#define MOD_REG_BIT(val, mask, set) do { \ + if (set) \ + val |= mask; \ + else \ + val &= ~mask; \ +} while (0) + +static inline void mcspi_write_reg(struct spi_master *master, + int idx, u32 val) +{ + struct omap2_mcspi *mcspi = spi_master_get_devdata(master); + + __raw_writel(val, mcspi->base + idx); +} + +static inline u32 mcspi_read_reg(struct spi_master *master, int idx) +{ + struct omap2_mcspi *mcspi = spi_master_get_devdata(master); + + return __raw_readl(mcspi->base + idx); +} + +static inline void mcspi_write_cs_reg(const struct spi_device *spi, + int idx, u32 val) +{ + struct omap2_mcspi_cs *cs = spi->controller_state; + + __raw_writel(val, cs->base + idx); +} + +static inline u32 mcspi_read_cs_reg(const struct spi_device *spi, int idx) +{ + struct omap2_mcspi_cs *cs = spi->controller_state; + + return __raw_readl(cs->base + idx); +} + +static void omap2_mcspi_set_dma_req(const struct spi_device *spi, + int is_read, int enable) +{ + u32 l, rw; + + l = mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHCONF0); + + if (is_read) /* 1 is read, 0 write */ + rw = OMAP2_MCSPI_CHCONF_DMAR; + else + rw = OMAP2_MCSPI_CHCONF_DMAW; + + MOD_REG_BIT(l, rw, enable); + mcspi_write_cs_reg(spi, OMAP2_MCSPI_CHCONF0, l); +} + +static void omap2_mcspi_set_enable(const struct spi_device *spi, int enable) +{ + u32 l; + + l = enable ? OMAP2_MCSPI_CHCTRL_EN : 0; + mcspi_write_cs_reg(spi, OMAP2_MCSPI_CHCTRL0, l); +} + +static void omap2_mcspi_force_cs(struct spi_device *spi, int cs_active) +{ + u32 l; + + l = mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHCONF0); + MOD_REG_BIT(l, OMAP2_MCSPI_CHCONF_FORCE, cs_active); + mcspi_write_cs_reg(spi, OMAP2_MCSPI_CHCONF0, l); +} + +static void omap2_mcspi_set_master_mode(struct spi_master *master) +{ + u32 l; + + /* setup when switching from (reset default) slave mode + * to single-channel master mode + */ + l = mcspi_read_reg(master, OMAP2_MCSPI_MODULCTRL); + MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_STEST, 0); + MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_MS, 0); + MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_SINGLE, 1); + mcspi_write_reg(master, OMAP2_MCSPI_MODULCTRL, l); +} + +static unsigned +omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer) +{ + struct omap2_mcspi *mcspi; + struct omap2_mcspi_cs *cs = spi->controller_state; + struct omap2_mcspi_dma *mcspi_dma; + unsigned int count, c; + unsigned long base, tx_reg, rx_reg; + int word_len, data_type, element_count; + u8 * rx; + const u8 * tx; + + mcspi = spi_master_get_devdata(spi->master); + mcspi_dma = &mcspi->dma_channels[spi->chip_select]; + + count = xfer->len; + c = count; + word_len = cs->word_len; + + base = (unsigned long) io_v2p(cs->base); + tx_reg = base + OMAP2_MCSPI_TX0; + rx_reg = base + OMAP2_MCSPI_RX0; + rx = xfer->rx_buf; + tx = xfer->tx_buf; + + if (word_len <= 8) { + data_type = OMAP_DMA_DATA_TYPE_S8; + element_count = count; + } else if (word_len <= 16) { + data_type = OMAP_DMA_DATA_TYPE_S16; + element_count = count >> 1; + } else /* word_len <= 32 */ { + data_type = OMAP_DMA_DATA_TYPE_S32; + element_count = count >> 2; + } + + if (tx != NULL) { + omap_set_dma_transfer_params(mcspi_dma->dma_tx_channel, + data_type, element_count, 1, + OMAP_DMA_SYNC_ELEMENT, + mcspi_dma->dma_tx_sync_dev, 0); + + omap_set_dma_dest_params(mcspi_dma->dma_tx_channel, 0, + OMAP_DMA_AMODE_CONSTANT, + tx_reg, 0, 0); + + omap_set_dma_src_params(mcspi_dma->dma_tx_channel, 0, + OMAP_DMA_AMODE_POST_INC, + xfer->tx_dma, 0, 0); + } + + if (rx != NULL) { + omap_set_dma_transfer_params(mcspi_dma->dma_rx_channel, + data_type, element_count, 1, + OMAP_DMA_SYNC_ELEMENT, + mcspi_dma->dma_rx_sync_dev, 1); + + omap_set_dma_src_params(mcspi_dma->dma_rx_channel, 0, + OMAP_DMA_AMODE_CONSTANT, + rx_reg, 0, 0); + + omap_set_dma_dest_params(mcspi_dma->dma_rx_channel, 0, + OMAP_DMA_AMODE_POST_INC, + xfer->rx_dma, 0, 0); + } + + if (tx != NULL) { + omap_start_dma(mcspi_dma->dma_tx_channel); + omap2_mcspi_set_dma_req(spi, 0, 1); + } + + if (rx != NULL) { + omap_start_dma(mcspi_dma->dma_rx_channel); + omap2_mcspi_set_dma_req(spi, 1, 1); + } + + if (tx != NULL) { + wait_for_completion(&mcspi_dma->dma_tx_completion); + dma_unmap_single(NULL, xfer->tx_dma, count, DMA_TO_DEVICE); + } + + if (rx != NULL) { + wait_for_completion(&mcspi_dma->dma_rx_completion); + dma_unmap_single(NULL, xfer->rx_dma, count, DMA_FROM_DEVICE); + } + return count; +} + +static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit) +{ + unsigned long timeout; + + timeout = jiffies + msecs_to_jiffies(1000); + while (!(__raw_readl(reg) & bit)) { + if (time_after(jiffies, timeout)) + return -1; + cpu_relax(); + } + return 0; +} + +static unsigned +omap2_mcspi_txrx_pio(struct spi_device *spi, struct spi_transfer *xfer) +{ + struct omap2_mcspi *mcspi; + struct omap2_mcspi_cs *cs = spi->controller_state; + unsigned int count, c; + u32 l; + void __iomem *base = cs->base; + void __iomem *tx_reg; + void __iomem *rx_reg; + void __iomem *chstat_reg; + int word_len; + + mcspi = spi_master_get_devdata(spi->master); + count = xfer->len; + c = count; + word_len = cs->word_len; + + l = mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHCONF0); + l &= ~OMAP2_MCSPI_CHCONF_TRM_MASK; + + /* We store the pre-calculated register addresses on stack to speed + * up the transfer loop. */ + tx_reg = base + OMAP2_MCSPI_TX0; + rx_reg = base + OMAP2_MCSPI_RX0; + chstat_reg = base + OMAP2_MCSPI_CHSTAT0; + + if (word_len <= 8) { + u8 *rx; + const u8 *tx; + + rx = xfer->rx_buf; + tx = xfer->tx_buf; + + do { + if (tx != NULL) { + if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_TXS) < 0) { + dev_err(&spi->dev, "TXS timed out\n"); + goto out; + } +#ifdef VERBOSE + dev_dbg(&spi->dev, "write-%d %02x\n", + word_len, *tx); +#endif + __raw_writel(*tx++, tx_reg); + } + if (rx != NULL) { + if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_RXS) < 0) { + dev_err(&spi->dev, "RXS timed out\n"); + goto out; + } + /* prevent last RX_ONLY read from triggering + * more word i/o: switch to rx+tx + */ + if (c == 0 && tx == NULL) + mcspi_write_cs_reg(spi, + OMAP2_MCSPI_CHCONF0, l); + *rx++ = __raw_readl(rx_reg); +#ifdef VERBOSE + dev_dbg(&spi->dev, "read-%d %02x\n", + word_len, *(rx - 1)); +#endif + } + c -= 1; + } while (c); + } else if (word_len <= 16) { + u16 *rx; + const u16 *tx; + + rx = xfer->rx_buf; + tx = xfer->tx_buf; + do { + if (tx != NULL) { + if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_TXS) < 0) { + dev_err(&spi->dev, "TXS timed out\n"); + goto out; + } +#ifdef VERBOSE + dev_dbg(&spi->dev, "write-%d %04x\n", + word_len, *tx); +#endif + __raw_writel(*tx++, tx_reg); + } + if (rx != NULL) { + if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_RXS) < 0) { + dev_err(&spi->dev, "RXS timed out\n"); + goto out; + } + /* prevent last RX_ONLY read from triggering + * more word i/o: switch to rx+tx + */ + if (c == 0 && tx == NULL) + mcspi_write_cs_reg(spi, + OMAP2_MCSPI_CHCONF0, l); + *rx++ = __raw_readl(rx_reg); +#ifdef VERBOSE + dev_dbg(&spi->dev, "read-%d %04x\n", + word_len, *(rx - 1)); +#endif + } + c -= 2; + } while (c); + } else if (word_len <= 32) { + u32 *rx; + const u32 *tx; + + rx = xfer->rx_buf; + tx = xfer->tx_buf; + do { + if (tx != NULL) { + if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_TXS) < 0) { + dev_err(&spi->dev, "TXS timed out\n"); + goto out; + } +#ifdef VERBOSE + dev_dbg(&spi->dev, "write-%d %04x\n", + word_len, *tx); +#endif + __raw_writel(*tx++, tx_reg); + } + if (rx != NULL) { + if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_RXS) < 0) { + dev_err(&spi->dev, "RXS timed out\n"); + goto out; + } + /* prevent last RX_ONLY read from triggering + * more word i/o: switch to rx+tx + */ + if (c == 0 && tx == NULL) + mcspi_write_cs_reg(spi, + OMAP2_MCSPI_CHCONF0, l); + *rx++ = __raw_readl(rx_reg); +#ifdef VERBOSE + dev_dbg(&spi->dev, "read-%d %04x\n", + word_len, *(rx - 1)); +#endif + } + c -= 4; + } while (c); + } + + /* for TX_ONLY mode, be sure all words have shifted out */ + if (xfer->rx_buf == NULL) { + if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_TXS) < 0) { + dev_err(&spi->dev, "TXS timed out\n"); + } else if (mcspi_wait_for_reg_bit(chstat_reg, + OMAP2_MCSPI_CHSTAT_EOT) < 0) + dev_err(&spi->dev, "EOT timed out\n"); + } +out: + return count - c; +} + +/* called only when no transfer is active to this device */ +static int omap2_mcspi_setup_transfer(struct spi_device *spi, + struct spi_transfer *t) +{ + struct omap2_mcspi_cs *cs = spi->controller_state; + struct omap2_mcspi *mcspi; + u32 l = 0, div = 0; + u8 word_len = spi->bits_per_word; + + mcspi = spi_master_get_devdata(spi->master); + + if (t != NULL && t->bits_per_word) + word_len = t->bits_per_word; + + cs->word_len = word_len; + + if (spi->max_speed_hz) { + while (div <= 15 && (OMAP2_MCSPI_MAX_FREQ / (1 << div)) + > spi->max_speed_hz) + div++; + } else + div = 15; + + l = mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHCONF0); + + /* standard 4-wire master mode: SCK, MOSI/out, MISO/in, nCS + * REVISIT: this controller could support SPI_3WIRE mode. + */ + l &= ~(OMAP2_MCSPI_CHCONF_IS|OMAP2_MCSPI_CHCONF_DPE1); + l |= OMAP2_MCSPI_CHCONF_DPE0; + + /* wordlength */ + l &= ~OMAP2_MCSPI_CHCONF_WL_MASK; + l |= (word_len - 1) << 7; + + /* set chipselect polarity; manage with FORCE */ + if (!(spi->mode & SPI_CS_HIGH)) + l |= OMAP2_MCSPI_CHCONF_EPOL; /* active-low; normal */ + else + l &= ~OMAP2_MCSPI_CHCONF_EPOL; + + /* set clock divisor */ + l &= ~OMAP2_MCSPI_CHCONF_CLKD_MASK; + l |= div << 2; + + /* set SPI mode 0..3 */ + if (spi->mode & SPI_CPOL) + l |= OMAP2_MCSPI_CHCONF_POL; + else + l &= ~OMAP2_MCSPI_CHCONF_POL; + if (spi->mode & SPI_CPHA) + l |= OMAP2_MCSPI_CHCONF_PHA; + else + l &= ~OMAP2_MCSPI_CHCONF_PHA; + + mcspi_write_cs_reg(spi, OMAP2_MCSPI_CHCONF0, l); + + dev_dbg(&spi->dev, "setup: speed %d, sample %s edge, clk %s\n", + OMAP2_MCSPI_MAX_FREQ / (1 << div), + (spi->mode & SPI_CPHA) ? "trailing" : "leading", + (spi->mode & SPI_CPOL) ? "inverted" : "normal"); + + return 0; +} + +static void omap2_mcspi_dma_rx_callback(int lch, u16 ch_status, void *data) +{ + struct spi_device *spi = data; + struct omap2_mcspi *mcspi; + struct omap2_mcspi_dma *mcspi_dma; + + mcspi = spi_master_get_devdata(spi->master); + mcspi_dma = &(mcspi->dma_channels[spi->chip_select]); + + complete(&mcspi_dma->dma_rx_completion); + + /* We must disable the DMA RX request */ + omap2_mcspi_set_dma_req(spi, 1, 0); +} + +static void omap2_mcspi_dma_tx_callback(int lch, u16 ch_status, void *data) +{ + struct spi_device *spi = data; + struct omap2_mcspi *mcspi; + struct omap2_mcspi_dma *mcspi_dma; + + mcspi = spi_master_get_devdata(spi->master); + mcspi_dma = &(mcspi->dma_channels[spi->chip_select]); + + complete(&mcspi_dma->dma_tx_completion); + + /* We must disable the DMA TX request */ + omap2_mcspi_set_dma_req(spi, 0, 0); +} + +static int omap2_mcspi_request_dma(struct spi_device *spi) +{ + struct spi_master *master = spi->master; + struct omap2_mcspi *mcspi; + struct omap2_mcspi_dma *mcspi_dma; + + mcspi = spi_master_get_devdata(master); + mcspi_dma = mcspi->dma_channels + spi->chip_select; + + if (omap_request_dma(mcspi_dma->dma_rx_sync_dev, "McSPI RX", + omap2_mcspi_dma_rx_callback, spi, + &mcspi_dma->dma_rx_channel)) { + dev_err(&spi->dev, "no RX DMA channel for McSPI\n"); + return -EAGAIN; + } + + if (omap_request_dma(mcspi_dma->dma_tx_sync_dev, "McSPI TX", + omap2_mcspi_dma_tx_callback, spi, + &mcspi_dma->dma_tx_channel)) { + omap_free_dma(mcspi_dma->dma_rx_channel); + mcspi_dma->dma_rx_channel = -1; + dev_err(&spi->dev, "no TX DMA channel for McSPI\n"); + return -EAGAIN; + } + + init_completion(&mcspi_dma->dma_rx_completion); + init_completion(&mcspi_dma->dma_tx_completion); + + return 0; +} + +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH) + +static int omap2_mcspi_setup(struct spi_device *spi) +{ + int ret; + struct omap2_mcspi *mcspi; + struct omap2_mcspi_dma *mcspi_dma; + struct omap2_mcspi_cs *cs = spi->controller_state; + + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); + return -EINVAL; + } + + if (spi->bits_per_word == 0) + spi->bits_per_word = 8; + else if (spi->bits_per_word < 4 || spi->bits_per_word > 32) { + dev_dbg(&spi->dev, "setup: unsupported %d bit words\n", + spi->bits_per_word); + return -EINVAL; + } + + mcspi = spi_master_get_devdata(spi->master); + mcspi_dma = &mcspi->dma_channels[spi->chip_select]; + + if (!cs) { + cs = kzalloc(sizeof *cs, GFP_KERNEL); + if (!cs) + return -ENOMEM; + cs->base = mcspi->base + spi->chip_select * 0x14; + spi->controller_state = cs; + } + + if (mcspi_dma->dma_rx_channel == -1 + || mcspi_dma->dma_tx_channel == -1) { + ret = omap2_mcspi_request_dma(spi); + if (ret < 0) + return ret; + } + + clk_enable(mcspi->ick); + clk_enable(mcspi->fck); + ret = omap2_mcspi_setup_transfer(spi, NULL); + clk_disable(mcspi->fck); + clk_disable(mcspi->ick); + + return ret; +} + +static void omap2_mcspi_cleanup(struct spi_device *spi) +{ + struct omap2_mcspi *mcspi; + struct omap2_mcspi_dma *mcspi_dma; + + mcspi = spi_master_get_devdata(spi->master); + mcspi_dma = &mcspi->dma_channels[spi->chip_select]; + + kfree(spi->controller_state); + + if (mcspi_dma->dma_rx_channel != -1) { + omap_free_dma(mcspi_dma->dma_rx_channel); + mcspi_dma->dma_rx_channel = -1; + } + if (mcspi_dma->dma_tx_channel != -1) { + omap_free_dma(mcspi_dma->dma_tx_channel); + mcspi_dma->dma_tx_channel = -1; + } +} + +static void omap2_mcspi_work(struct work_struct *work) +{ + struct omap2_mcspi *mcspi; + + mcspi = container_of(work, struct omap2_mcspi, work); + spin_lock_irq(&mcspi->lock); + + clk_enable(mcspi->ick); + clk_enable(mcspi->fck); + + /* We only enable one channel at a time -- the one whose message is + * at the head of the queue -- although this controller would gladly + * arbitrate among multiple channels. This corresponds to "single + * channel" master mode. As a side effect, we need to manage the + * chipselect with the FORCE bit ... CS != channel enable. + */ + while (!list_empty(&mcspi->msg_queue)) { + struct spi_message *m; + struct spi_device *spi; + struct spi_transfer *t = NULL; + int cs_active = 0; + struct omap2_mcspi_device_config *conf; + struct omap2_mcspi_cs *cs; + int par_override = 0; + int status = 0; + u32 chconf; + + m = container_of(mcspi->msg_queue.next, struct spi_message, + queue); + + list_del_init(&m->queue); + spin_unlock_irq(&mcspi->lock); + + spi = m->spi; + conf = spi->controller_data; + cs = spi->controller_state; + + omap2_mcspi_set_enable(spi, 1); + list_for_each_entry(t, &m->transfers, transfer_list) { + if (t->tx_buf == NULL && t->rx_buf == NULL && t->len) { + status = -EINVAL; + break; + } + if (par_override || t->speed_hz || t->bits_per_word) { + par_override = 1; + status = omap2_mcspi_setup_transfer(spi, t); + if (status < 0) + break; + if (!t->speed_hz && !t->bits_per_word) + par_override = 0; + } + + if (!cs_active) { + omap2_mcspi_force_cs(spi, 1); + cs_active = 1; + } + + chconf = mcspi_read_cs_reg(spi, OMAP2_MCSPI_CHCONF0); + chconf &= ~OMAP2_MCSPI_CHCONF_TRM_MASK; + if (t->tx_buf == NULL) + chconf |= OMAP2_MCSPI_CHCONF_TRM_RX_ONLY; + else if (t->rx_buf == NULL) + chconf |= OMAP2_MCSPI_CHCONF_TRM_TX_ONLY; + mcspi_write_cs_reg(spi, OMAP2_MCSPI_CHCONF0, chconf); + + if (t->len) { + unsigned count; + + /* RX_ONLY mode needs dummy data in TX reg */ + if (t->tx_buf == NULL) + __raw_writel(0, cs->base + + OMAP2_MCSPI_TX0); + + if (m->is_dma_mapped || t->len >= DMA_MIN_BYTES) + count = omap2_mcspi_txrx_dma(spi, t); + else + count = omap2_mcspi_txrx_pio(spi, t); + m->actual_length += count; + + if (count != t->len) { + status = -EIO; + break; + } + } + + if (t->delay_usecs) + udelay(t->delay_usecs); + + /* ignore the "leave it on after last xfer" hint */ + if (t->cs_change) { + omap2_mcspi_force_cs(spi, 0); + cs_active = 0; + } + } + + /* Restore defaults if they were overriden */ + if (par_override) { + par_override = 0; + status = omap2_mcspi_setup_transfer(spi, NULL); + } + + if (cs_active) + omap2_mcspi_force_cs(spi, 0); + + omap2_mcspi_set_enable(spi, 0); + + m->status = status; + m->complete(m->context); + + spin_lock_irq(&mcspi->lock); + } + + clk_disable(mcspi->fck); + clk_disable(mcspi->ick); + + spin_unlock_irq(&mcspi->lock); +} + +static int omap2_mcspi_transfer(struct spi_device *spi, struct spi_message *m) +{ + struct omap2_mcspi *mcspi; + unsigned long flags; + struct spi_transfer *t; + + m->actual_length = 0; + m->status = 0; + + /* reject invalid messages and transfers */ + if (list_empty(&m->transfers) || !m->complete) + return -EINVAL; + list_for_each_entry(t, &m->transfers, transfer_list) { + const void *tx_buf = t->tx_buf; + void *rx_buf = t->rx_buf; + unsigned len = t->len; + + if (t->speed_hz > OMAP2_MCSPI_MAX_FREQ + || (len && !(rx_buf || tx_buf)) + || (t->bits_per_word && + ( t->bits_per_word < 4 + || t->bits_per_word > 32))) { + dev_dbg(&spi->dev, "transfer: %d Hz, %d %s%s, %d bpw\n", + t->speed_hz, + len, + tx_buf ? "tx" : "", + rx_buf ? "rx" : "", + t->bits_per_word); + return -EINVAL; + } + if (t->speed_hz && t->speed_hz < OMAP2_MCSPI_MAX_FREQ/(1<<16)) { + dev_dbg(&spi->dev, "%d Hz max exceeds %d\n", + t->speed_hz, + OMAP2_MCSPI_MAX_FREQ/(1<<16)); + return -EINVAL; + } + + if (m->is_dma_mapped || len < DMA_MIN_BYTES) + continue; + + /* Do DMA mapping "early" for better error reporting and + * dcache use. Note that if dma_unmap_single() ever starts + * to do real work on ARM, we'd need to clean up mappings + * for previous transfers on *ALL* exits of this loop... + */ + if (tx_buf != NULL) { + t->tx_dma = dma_map_single(&spi->dev, (void *) tx_buf, + len, DMA_TO_DEVICE); + if (dma_mapping_error(t->tx_dma)) { + dev_dbg(&spi->dev, "dma %cX %d bytes error\n", + 'T', len); + return -EINVAL; + } + } + if (rx_buf != NULL) { + t->rx_dma = dma_map_single(&spi->dev, rx_buf, t->len, + DMA_FROM_DEVICE); + if (dma_mapping_error(t->rx_dma)) { + dev_dbg(&spi->dev, "dma %cX %d bytes error\n", + 'R', len); + if (tx_buf != NULL) + dma_unmap_single(NULL, t->tx_dma, + len, DMA_TO_DEVICE); + return -EINVAL; + } + } + } + + mcspi = spi_master_get_devdata(spi->master); + + spin_lock_irqsave(&mcspi->lock, flags); + list_add_tail(&m->queue, &mcspi->msg_queue); + queue_work(omap2_mcspi_wq, &mcspi->work); + spin_unlock_irqrestore(&mcspi->lock, flags); + + return 0; +} + +static int __init omap2_mcspi_reset(struct omap2_mcspi *mcspi) +{ + struct spi_master *master = mcspi->master; + u32 tmp; + + clk_enable(mcspi->ick); + clk_enable(mcspi->fck); + + mcspi_write_reg(master, OMAP2_MCSPI_SYSCONFIG, + OMAP2_MCSPI_SYSCONFIG_SOFTRESET); + do { + tmp = mcspi_read_reg(master, OMAP2_MCSPI_SYSSTATUS); + } while (!(tmp & OMAP2_MCSPI_SYSSTATUS_RESETDONE)); + + mcspi_write_reg(master, OMAP2_MCSPI_SYSCONFIG, + /* (3 << 8) | (2 << 3) | */ + OMAP2_MCSPI_SYSCONFIG_AUTOIDLE); + + omap2_mcspi_set_master_mode(master); + + clk_disable(mcspi->fck); + clk_disable(mcspi->ick); + return 0; +} + +static u8 __initdata spi1_rxdma_id [] = { + OMAP24XX_DMA_SPI1_RX0, + OMAP24XX_DMA_SPI1_RX1, + OMAP24XX_DMA_SPI1_RX2, + OMAP24XX_DMA_SPI1_RX3, +}; + +static u8 __initdata spi1_txdma_id [] = { + OMAP24XX_DMA_SPI1_TX0, + OMAP24XX_DMA_SPI1_TX1, + OMAP24XX_DMA_SPI1_TX2, + OMAP24XX_DMA_SPI1_TX3, +}; + +static u8 __initdata spi2_rxdma_id[] = { + OMAP24XX_DMA_SPI2_RX0, + OMAP24XX_DMA_SPI2_RX1, +}; + +static u8 __initdata spi2_txdma_id[] = { + OMAP24XX_DMA_SPI2_TX0, + OMAP24XX_DMA_SPI2_TX1, +}; + +static int __init omap2_mcspi_probe(struct platform_device *pdev) +{ + struct spi_master *master; + struct omap2_mcspi *mcspi; + struct resource *r; + int status = 0, i; + const u8 *rxdma_id, *txdma_id; + unsigned num_chipselect; + + switch (pdev->id) { + case 1: + rxdma_id = spi1_rxdma_id; + txdma_id = spi1_txdma_id; + num_chipselect = 4; + break; + case 2: + rxdma_id = spi2_rxdma_id; + txdma_id = spi2_txdma_id; + num_chipselect = 2; + break; + /* REVISIT omap2430 has a third McSPI ... */ + default: + return -EINVAL; + } + + master = spi_alloc_master(&pdev->dev, sizeof *mcspi); + if (master == NULL) { + dev_dbg(&pdev->dev, "master allocation failed\n"); + return -ENOMEM; + } + + if (pdev->id != -1) + master->bus_num = pdev->id; + + master->setup = omap2_mcspi_setup; + master->transfer = omap2_mcspi_transfer; + master->cleanup = omap2_mcspi_cleanup; + master->num_chipselect = num_chipselect; + + dev_set_drvdata(&pdev->dev, master); + + mcspi = spi_master_get_devdata(master); + mcspi->master = master; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (r == NULL) { + status = -ENODEV; + goto err1; + } + if (!request_mem_region(r->start, (r->end - r->start) + 1, + pdev->dev.bus_id)) { + status = -EBUSY; + goto err1; + } + + mcspi->base = (void __iomem *) io_p2v(r->start); + + INIT_WORK(&mcspi->work, omap2_mcspi_work); + + spin_lock_init(&mcspi->lock); + INIT_LIST_HEAD(&mcspi->msg_queue); + + mcspi->ick = clk_get(&pdev->dev, "mcspi_ick"); + if (IS_ERR(mcspi->ick)) { + dev_dbg(&pdev->dev, "can't get mcspi_ick\n"); + status = PTR_ERR(mcspi->ick); + goto err1a; + } + mcspi->fck = clk_get(&pdev->dev, "mcspi_fck"); + if (IS_ERR(mcspi->fck)) { + dev_dbg(&pdev->dev, "can't get mcspi_fck\n"); + status = PTR_ERR(mcspi->fck); + goto err2; + } + + mcspi->dma_channels = kcalloc(master->num_chipselect, + sizeof(struct omap2_mcspi_dma), + GFP_KERNEL); + + if (mcspi->dma_channels == NULL) + goto err3; + + for (i = 0; i < num_chipselect; i++) { + mcspi->dma_channels[i].dma_rx_channel = -1; + mcspi->dma_channels[i].dma_rx_sync_dev = rxdma_id[i]; + mcspi->dma_channels[i].dma_tx_channel = -1; + mcspi->dma_channels[i].dma_tx_sync_dev = txdma_id[i]; + } + + if (omap2_mcspi_reset(mcspi) < 0) + goto err4; + + status = spi_register_master(master); + if (status < 0) + goto err4; + + return status; + +err4: + kfree(mcspi->dma_channels); +err3: + clk_put(mcspi->fck); +err2: + clk_put(mcspi->ick); +err1a: + release_mem_region(r->start, (r->end - r->start) + 1); +err1: + spi_master_put(master); + return status; +} + +static int __exit omap2_mcspi_remove(struct platform_device *pdev) +{ + struct spi_master *master; + struct omap2_mcspi *mcspi; + struct omap2_mcspi_dma *dma_channels; + struct resource *r; + + master = dev_get_drvdata(&pdev->dev); + mcspi = spi_master_get_devdata(master); + dma_channels = mcspi->dma_channels; + + clk_put(mcspi->fck); + clk_put(mcspi->ick); + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(r->start, (r->end - r->start) + 1); + + spi_unregister_master(master); + kfree(dma_channels); + + return 0; +} + +static struct platform_driver omap2_mcspi_driver = { + .driver = { + .name = "omap2_mcspi", + .owner = THIS_MODULE, + }, + .remove = __exit_p(omap2_mcspi_remove), +}; + + +static int __init omap2_mcspi_init(void) +{ + omap2_mcspi_wq = create_singlethread_workqueue( + omap2_mcspi_driver.driver.name); + if (omap2_mcspi_wq == NULL) + return -1; + return platform_driver_probe(&omap2_mcspi_driver, omap2_mcspi_probe); +} +subsys_initcall(omap2_mcspi_init); + +static void __exit omap2_mcspi_exit(void) +{ + platform_driver_unregister(&omap2_mcspi_driver); + + destroy_workqueue(omap2_mcspi_wq); +} +module_exit(omap2_mcspi_exit); + +MODULE_LICENSE("GPL"); diff --git a/drivers/spi/omap_uwire.c b/drivers/spi/omap_uwire.c index 95183e1df525..d275c615a73e 100644 --- a/drivers/spi/omap_uwire.c +++ b/drivers/spi/omap_uwire.c @@ -445,10 +445,19 @@ done: return status; } +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH) + static int uwire_setup(struct spi_device *spi) { struct uwire_state *ust = spi->controller_state; + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); + return -EINVAL; + } + if (ust == NULL) { ust = kzalloc(sizeof(*ust), GFP_KERNEL); if (ust == NULL) diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c index 9f2c887ffa04..e51311b2da0b 100644 --- a/drivers/spi/pxa2xx_spi.c +++ b/drivers/spi/pxa2xx_spi.c @@ -1067,6 +1067,9 @@ static int transfer(struct spi_device *spi, struct spi_message *msg) return 0; } +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA) + static int setup(struct spi_device *spi) { struct pxa2xx_spi_chip *chip_info = NULL; @@ -1093,6 +1096,12 @@ static int setup(struct spi_device *spi) return -EINVAL; } + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); + return -EINVAL; + } + /* Only alloc on first setup */ chip = spi_get_ctldata(spi); if (!chip) { diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 4831edbae2d5..018884d7a5fa 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -23,6 +23,7 @@ #include <linux/device.h> #include <linux/init.h> #include <linux/cache.h> +#include <linux/mutex.h> #include <linux/spi/spi.h> @@ -185,7 +186,7 @@ struct boardinfo { }; static LIST_HEAD(board_list); -static DECLARE_MUTEX(board_lock); +static DEFINE_MUTEX(board_lock); /** @@ -292,9 +293,9 @@ spi_register_board_info(struct spi_board_info const *info, unsigned n) bi->n_board_info = n; memcpy(bi->board_info, info, n * sizeof *info); - down(&board_lock); + mutex_lock(&board_lock); list_add_tail(&bi->list, &board_list); - up(&board_lock); + mutex_unlock(&board_lock); return 0; } @@ -308,7 +309,7 @@ scan_boardinfo(struct spi_master *master) struct boardinfo *bi; struct device *dev = master->cdev.dev; - down(&board_lock); + mutex_lock(&board_lock); list_for_each_entry(bi, &board_list, list) { struct spi_board_info *chip = bi->board_info; unsigned n; @@ -330,7 +331,7 @@ scan_boardinfo(struct spi_master *master) (void) spi_new_device(master, chip); } } - up(&board_lock); + mutex_unlock(&board_lock); } /*-------------------------------------------------------------------------*/ diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c index 88425e1af4d3..0c85c984ccb4 100644 --- a/drivers/spi/spi_bitbang.c +++ b/drivers/spi/spi_bitbang.c @@ -187,12 +187,10 @@ int spi_bitbang_setup(struct spi_device *spi) bitbang = spi_master_get_devdata(spi->master); - /* REVISIT: some systems will want to support devices using lsb-first - * bit encodings on the wire. In pure software that would be trivial, - * just bitbang_txrx_le_cphaX() routines shifting the other way, and - * some hardware controllers also have this support. + /* Bitbangers can support SPI_CS_HIGH, SPI_3WIRE, and so on; + * add those to master->flags, and provide the other support. */ - if ((spi->mode & SPI_LSB_FIRST) != 0) + if ((spi->mode & ~(SPI_CPOL|SPI_CPHA|bitbang->flags)) != 0) return -EINVAL; if (!cs) { diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c index 656be4a5094a..aee9ad6f633c 100644 --- a/drivers/spi/spi_imx.c +++ b/drivers/spi/spi_imx.c @@ -1163,6 +1163,9 @@ msg_rejected: return -EINVAL; } +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH) + /* On first setup bad values must free chip_data memory since will cause spi_new_device to fail. Bad value setup from protocol driver are simply not applied and notified to the calling driver. */ @@ -1174,6 +1177,12 @@ static int setup(struct spi_device *spi) u32 tmp; int status = 0; + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); + return -EINVAL; + } + /* Get controller data */ chip_info = spi->controller_data; @@ -1245,21 +1254,6 @@ static int setup(struct spi_device *spi) /* SPI mode */ tmp = spi->mode; - if (tmp & SPI_LSB_FIRST) { - status = -EINVAL; - if (first_setup) { - dev_err(&spi->dev, - "setup - " - "HW doesn't support LSB first transfer\n"); - goto err_first_setup; - } else { - dev_err(&spi->dev, - "setup - " - "HW doesn't support LSB first transfer, " - "default to MSB first\n"); - spi->mode &= ~SPI_LSB_FIRST; - } - } if (tmp & SPI_CS_HIGH) { u32_EDIT(chip->control, SPI_CONTROL_SSPOL, SPI_CONTROL_SSPOL_ACT_HIGH); diff --git a/drivers/spi/spi_lm70llp.c b/drivers/spi/spi_lm70llp.c new file mode 100644 index 000000000000..4ea68ac16115 --- /dev/null +++ b/drivers/spi/spi_lm70llp.c @@ -0,0 +1,361 @@ +/* + * spi_lm70llp.c - driver for lm70llp eval board for the LM70 sensor + * + * Copyright (C) 2006 Kaiwan N Billimoria <kaiwan@designergraphix.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/parport.h> +#include <linux/sysfs.h> +#include <linux/workqueue.h> + + +#include <linux/spi/spi.h> +#include <linux/spi/spi_bitbang.h> + + +/* + * The LM70 communicates with a host processor using a 3-wire variant of + * the SPI/Microwire bus interface. This driver specifically supports an + * NS LM70 LLP Evaluation Board, interfacing to a PC using its parallel + * port to bitbang an SPI-parport bridge. Accordingly, this is an SPI + * master controller driver. The hwmon/lm70 driver is a "SPI protocol + * driver", layered on top of this one and usable without the lm70llp. + * + * The LM70 is a temperature sensor chip from National Semiconductor; its + * datasheet is available at http://www.national.com/pf/LM/LM70.html + * + * Also see Documentation/spi/spi-lm70llp. The SPI<->parport code here is + * (heavily) based on spi-butterfly by David Brownell. + * + * The LM70 LLP connects to the PC parallel port in the following manner: + * + * Parallel LM70 LLP + * Port Direction JP2 Header + * ----------- --------- ------------ + * D0 2 - - + * D1 3 --> V+ 5 + * D2 4 --> V+ 5 + * D3 5 --> V+ 5 + * D4 6 --> V+ 5 + * D5 7 --> nCS 8 + * D6 8 --> SCLK 3 + * D7 9 --> SI/O 5 + * GND 25 - GND 7 + * Select 13 <-- SI/O 1 + * + * Note that parport pin 13 actually gets inverted by the transistor + * arrangement which lets either the parport or the LM70 drive the + * SI/SO signal. + */ + +#define DRVNAME "spi-lm70llp" + +#define lm70_INIT 0xBE +#define SIO 0x10 +#define nCS 0x20 +#define SCLK 0x40 + +/*-------------------------------------------------------------------------*/ + +struct spi_lm70llp { + struct spi_bitbang bitbang; + struct parport *port; + struct pardevice *pd; + struct spi_device *spidev_lm70; + struct spi_board_info info; + struct class_device *cdev; +}; + +/* REVISIT : ugly global ; provides "exclusive open" facility */ +static struct spi_lm70llp *lm70llp; + + +/*-------------------------------------------------------------------*/ + +static inline struct spi_lm70llp *spidev_to_pp(struct spi_device *spi) +{ + return spi->controller_data; +} + +/*---------------------- LM70 LLP eval board-specific inlines follow */ + +/* NOTE: we don't actually need to reread the output values, since they'll + * still be what we wrote before. Plus, going through parport builds in + * a ~1ms/operation delay; these SPI transfers could easily be faster. + */ + +static inline void deassertCS(struct spi_lm70llp *pp) +{ + u8 data = parport_read_data(pp->port); + parport_write_data(pp->port, data | nCS); +} + +static inline void assertCS(struct spi_lm70llp *pp) +{ + u8 data = parport_read_data(pp->port); + parport_write_data(pp->port, data & ~nCS); +} + +static inline void clkHigh(struct spi_lm70llp *pp) +{ + u8 data = parport_read_data(pp->port); + parport_write_data(pp->port, data | SCLK); +} + +static inline void clkLow(struct spi_lm70llp *pp) +{ + u8 data = parport_read_data(pp->port); + parport_write_data(pp->port, data & ~SCLK); +} + +/*------------------------- SPI-LM70-specific inlines ----------------------*/ + +static inline void spidelay(unsigned d) +{ + udelay(d); +} + +static inline void setsck(struct spi_device *s, int is_on) +{ + struct spi_lm70llp *pp = spidev_to_pp(s); + + if (is_on) + clkHigh(pp); + else + clkLow(pp); +} + +static inline void setmosi(struct spi_device *s, int is_on) +{ + /* FIXME update D7 ... this way we can put the chip + * into shutdown mode and read the manufacturer ID, + * but we can't put it back into operational mode. + */ +} + +/* + * getmiso: + * Why do we return 0 when the SIO line is high and vice-versa? + * The fact is, the lm70 eval board from NS (which this driver drives), + * is wired in just such a way : when the lm70's SIO goes high, a transistor + * switches it to low reflecting this on the parport (pin 13), and vice-versa. + */ +static inline int getmiso(struct spi_device *s) +{ + struct spi_lm70llp *pp = spidev_to_pp(s); + return ((SIO == (parport_read_status(pp->port) & SIO)) ? 0 : 1 ); +} +/*--------------------------------------------------------------------*/ + +#define EXPAND_BITBANG_TXRX 1 +#include <linux/spi/spi_bitbang.h> + +static void lm70_chipselect(struct spi_device *spi, int value) +{ + struct spi_lm70llp *pp = spidev_to_pp(spi); + + if (value) + assertCS(pp); + else + deassertCS(pp); +} + +/* + * Our actual bitbanger routine. + */ +static u32 lm70_txrx(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits) +{ + static u32 sio=0; + static int first_time=1; + + /* First time: perform SPI bitbang and return the LSB of + * the result of the SPI call. + */ + if (first_time) { + sio = bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits); + first_time=0; + return (sio & 0x00ff); + } + /* Return the MSB of the result of the SPI call */ + else { + first_time=1; + return (sio >> 8); + } +} + +static void spi_lm70llp_attach(struct parport *p) +{ + struct pardevice *pd; + struct spi_lm70llp *pp; + struct spi_master *master; + int status; + + if (lm70llp) { + printk(KERN_WARNING + "%s: spi_lm70llp instance already loaded. Aborting.\n", + DRVNAME); + return; + } + + /* TODO: this just _assumes_ a lm70 is there ... no probe; + * the lm70 driver could verify it, reading the manf ID. + */ + + master = spi_alloc_master(p->physport->dev, sizeof *pp); + if (!master) { + status = -ENOMEM; + goto out_fail; + } + pp = spi_master_get_devdata(master); + + master->bus_num = -1; /* dynamic alloc of a bus number */ + master->num_chipselect = 1; + + /* + * SPI and bitbang hookup. + */ + pp->bitbang.master = spi_master_get(master); + pp->bitbang.chipselect = lm70_chipselect; + pp->bitbang.txrx_word[SPI_MODE_0] = lm70_txrx; + pp->bitbang.flags = SPI_3WIRE; + + /* + * Parport hookup + */ + pp->port = p; + pd = parport_register_device(p, DRVNAME, + NULL, NULL, NULL, + PARPORT_FLAG_EXCL, pp); + if (!pd) { + status = -ENOMEM; + goto out_free_master; + } + pp->pd = pd; + + status = parport_claim(pd); + if (status < 0) + goto out_parport_unreg; + + /* + * Start SPI ... + */ + status = spi_bitbang_start(&pp->bitbang); + if (status < 0) { + printk(KERN_WARNING + "%s: spi_bitbang_start failed with status %d\n", + DRVNAME, status); + goto out_off_and_release; + } + + /* + * The modalias name MUST match the device_driver name + * for the bus glue code to match and subsequently bind them. + * We are binding to the generic drivers/hwmon/lm70.c device + * driver. + */ + strcpy(pp->info.modalias, "lm70"); + pp->info.max_speed_hz = 6 * 1000 * 1000; + pp->info.chip_select = 0; + pp->info.mode = SPI_3WIRE | SPI_MODE_0; + + /* power up the chip, and let the LM70 control SI/SO */ + parport_write_data(pp->port, lm70_INIT); + + /* Enable access to our primary data structure via + * the board info's (void *)controller_data. + */ + pp->info.controller_data = pp; + pp->spidev_lm70 = spi_new_device(pp->bitbang.master, &pp->info); + if (pp->spidev_lm70) + dev_dbg(&pp->spidev_lm70->dev, "spidev_lm70 at %s\n", + pp->spidev_lm70->dev.bus_id); + else { + printk(KERN_WARNING "%s: spi_new_device failed\n", DRVNAME); + status = -ENODEV; + goto out_bitbang_stop; + } + pp->spidev_lm70->bits_per_word = 16; + + lm70llp = pp; + + return; + +out_bitbang_stop: + spi_bitbang_stop(&pp->bitbang); +out_off_and_release: + /* power down */ + parport_write_data(pp->port, 0); + mdelay(10); + parport_release(pp->pd); +out_parport_unreg: + parport_unregister_device(pd); +out_free_master: + (void) spi_master_put(master); +out_fail: + pr_info("%s: spi_lm70llp probe fail, status %d\n", DRVNAME, status); +} + +static void spi_lm70llp_detach(struct parport *p) +{ + struct spi_lm70llp *pp; + + if (!lm70llp || lm70llp->port != p) + return; + + pp = lm70llp; + spi_bitbang_stop(&pp->bitbang); + + /* power down */ + parport_write_data(pp->port, 0); + msleep(10); + + parport_release(pp->pd); + parport_unregister_device(pp->pd); + + (void) spi_master_put(pp->bitbang.master); + + lm70llp = NULL; +} + + +static struct parport_driver spi_lm70llp_drv = { + .name = DRVNAME, + .attach = spi_lm70llp_attach, + .detach = spi_lm70llp_detach, +}; + +static int __init init_spi_lm70llp(void) +{ + return parport_register_driver(&spi_lm70llp_drv); +} +module_init(init_spi_lm70llp); + +static void __exit cleanup_spi_lm70llp(void) +{ + parport_unregister_driver(&spi_lm70llp_drv); +} +module_exit(cleanup_spi_lm70llp); + +MODULE_AUTHOR("Kaiwan N Billimoria <kaiwan@designergraphix.com>"); +MODULE_DESCRIPTION( + "Parport adapter for the National Semiconductor LM70 LLP eval board"); +MODULE_LICENSE("GPL"); diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c index e9798bf7b8c6..3295cfcc9f20 100644 --- a/drivers/spi/spi_mpc83xx.c +++ b/drivers/spi/spi_mpc83xx.c @@ -47,6 +47,7 @@ struct mpc83xx_spi_reg { #define SPMODE_ENABLE (1 << 24) #define SPMODE_LEN(x) ((x) << 20) #define SPMODE_PM(x) ((x) << 16) +#define SPMODE_OP (1 << 14) /* * Default for SPI Mode: @@ -85,6 +86,11 @@ struct mpc83xx_spi { unsigned nsecs; /* (clock cycle time)/2 */ u32 sysclk; + u32 rx_shift; /* RX data reg shift when in qe mode */ + u32 tx_shift; /* TX data reg shift when in qe mode */ + + bool qe_mode; + void (*activate_cs) (u8 cs, u8 polarity); void (*deactivate_cs) (u8 cs, u8 polarity); }; @@ -103,7 +109,7 @@ static inline u32 mpc83xx_spi_read_reg(__be32 __iomem * reg) void mpc83xx_spi_rx_buf_##type(u32 data, struct mpc83xx_spi *mpc83xx_spi) \ { \ type * rx = mpc83xx_spi->rx; \ - *rx++ = (type)data; \ + *rx++ = (type)(data >> mpc83xx_spi->rx_shift); \ mpc83xx_spi->rx = rx; \ } @@ -114,7 +120,7 @@ u32 mpc83xx_spi_tx_buf_##type(struct mpc83xx_spi *mpc83xx_spi) \ const type * tx = mpc83xx_spi->tx; \ if (!tx) \ return 0; \ - data = *tx++; \ + data = *tx++ << mpc83xx_spi->tx_shift; \ mpc83xx_spi->tx = tx; \ return data; \ } @@ -158,6 +164,12 @@ static void mpc83xx_spi_chipselect(struct spi_device *spi, int value) if ((mpc83xx_spi->sysclk / spi->max_speed_hz) >= 64) { u8 pm = mpc83xx_spi->sysclk / (spi->max_speed_hz * 64); + if (pm > 0x0f) { + printk(KERN_WARNING "MPC83xx SPI: SPICLK can't be less then a SYSCLK/1024!\n" + "Requested SPICLK is %d Hz. Will use %d Hz instead.\n", + spi->max_speed_hz, mpc83xx_spi->sysclk / 1024); + pm = 0x0f; + } regval |= SPMODE_PM(pm) | SPMODE_DIV16; } else { u8 pm = mpc83xx_spi->sysclk / (spi->max_speed_hz * 4); @@ -197,12 +209,22 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) || ((bits_per_word > 16) && (bits_per_word != 32))) return -EINVAL; + mpc83xx_spi->rx_shift = 0; + mpc83xx_spi->tx_shift = 0; if (bits_per_word <= 8) { mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u8; mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u8; + if (mpc83xx_spi->qe_mode) { + mpc83xx_spi->rx_shift = 16; + mpc83xx_spi->tx_shift = 24; + } } else if (bits_per_word <= 16) { mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u16; mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u16; + if (mpc83xx_spi->qe_mode) { + mpc83xx_spi->rx_shift = 16; + mpc83xx_spi->tx_shift = 16; + } } else if (bits_per_word <= 32) { mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u32; mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u32; @@ -232,12 +254,21 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) return 0; } +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH) + static int mpc83xx_spi_setup(struct spi_device *spi) { struct spi_bitbang *bitbang; struct mpc83xx_spi *mpc83xx_spi; int retval; + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); + return -EINVAL; + } + if (!spi->max_speed_hz) return -EINVAL; @@ -371,7 +402,6 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev) ret = -ENODEV; goto free_master; } - mpc83xx_spi = spi_master_get_devdata(master); mpc83xx_spi->bitbang.master = spi_master_get(master); mpc83xx_spi->bitbang.chipselect = mpc83xx_spi_chipselect; @@ -380,9 +410,17 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev) mpc83xx_spi->sysclk = pdata->sysclk; mpc83xx_spi->activate_cs = pdata->activate_cs; mpc83xx_spi->deactivate_cs = pdata->deactivate_cs; + mpc83xx_spi->qe_mode = pdata->qe_mode; mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u8; mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u8; + mpc83xx_spi->rx_shift = 0; + mpc83xx_spi->tx_shift = 0; + if (mpc83xx_spi->qe_mode) { + mpc83xx_spi->rx_shift = 16; + mpc83xx_spi->tx_shift = 24; + } + mpc83xx_spi->bitbang.master->setup = mpc83xx_spi_setup; init_completion(&mpc83xx_spi->done); @@ -417,6 +455,9 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev) /* Enable SPI interface */ regval = pdata->initial_spmode | SPMODE_INIT_VAL | SPMODE_ENABLE; + if (pdata->qe_mode) + regval |= SPMODE_OP; + mpc83xx_spi_write_reg(&mpc83xx_spi->base->mode, regval); ret = spi_bitbang_start(&mpc83xx_spi->bitbang); diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c index d5a710f6e445..7071ff8da63e 100644 --- a/drivers/spi/spi_s3c24xx.c +++ b/drivers/spi/spi_s3c24xx.c @@ -146,6 +146,9 @@ static int s3c24xx_spi_setupxfer(struct spi_device *spi, return 0; } +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH) + static int s3c24xx_spi_setup(struct spi_device *spi) { int ret; @@ -153,8 +156,11 @@ static int s3c24xx_spi_setup(struct spi_device *spi) if (!spi->bits_per_word) spi->bits_per_word = 8; - if ((spi->mode & SPI_LSB_FIRST) != 0) + if (spi->mode & ~MODEBITS) { + dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n", + spi->mode & ~MODEBITS); return -EINVAL; + } ret = s3c24xx_spi_setupxfer(spi, NULL); if (ret < 0) { diff --git a/drivers/spi/spi_txx9.c b/drivers/spi/spi_txx9.c new file mode 100644 index 000000000000..08e981c40646 --- /dev/null +++ b/drivers/spi/spi_txx9.c @@ -0,0 +1,474 @@ +/* + * spi_txx9.c - TXx9 SPI controller driver. + * + * Based on linux/arch/mips/tx4938/toshiba_rbtx4938/spi_txx9.c + * Copyright (C) 2000-2001 Toshiba Corporation + * + * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the + * terms of the GNU General Public License version 2. This program is + * licensed "as is" without any warranty of any kind, whether express + * or implied. + * + * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com) + * + * Convert to generic SPI framework - Atsushi Nemoto (anemo@mba.ocn.ne.jp) + */ +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <linux/spi/spi.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <asm/gpio.h> + + +#define SPI_FIFO_SIZE 4 + +#define TXx9_SPMCR 0x00 +#define TXx9_SPCR0 0x04 +#define TXx9_SPCR1 0x08 +#define TXx9_SPFS 0x0c +#define TXx9_SPSR 0x14 +#define TXx9_SPDR 0x18 + +/* SPMCR : SPI Master Control */ +#define TXx9_SPMCR_OPMODE 0xc0 +#define TXx9_SPMCR_CONFIG 0x40 +#define TXx9_SPMCR_ACTIVE 0x80 +#define TXx9_SPMCR_SPSTP 0x02 +#define TXx9_SPMCR_BCLR 0x01 + +/* SPCR0 : SPI Control 0 */ +#define TXx9_SPCR0_TXIFL_MASK 0xc000 +#define TXx9_SPCR0_RXIFL_MASK 0x3000 +#define TXx9_SPCR0_SIDIE 0x0800 +#define TXx9_SPCR0_SOEIE 0x0400 +#define TXx9_SPCR0_RBSIE 0x0200 +#define TXx9_SPCR0_TBSIE 0x0100 +#define TXx9_SPCR0_IFSPSE 0x0010 +#define TXx9_SPCR0_SBOS 0x0004 +#define TXx9_SPCR0_SPHA 0x0002 +#define TXx9_SPCR0_SPOL 0x0001 + +/* SPSR : SPI Status */ +#define TXx9_SPSR_TBSI 0x8000 +#define TXx9_SPSR_RBSI 0x4000 +#define TXx9_SPSR_TBS_MASK 0x3800 +#define TXx9_SPSR_RBS_MASK 0x0700 +#define TXx9_SPSR_SPOE 0x0080 +#define TXx9_SPSR_IFSD 0x0008 +#define TXx9_SPSR_SIDLE 0x0004 +#define TXx9_SPSR_STRDY 0x0002 +#define TXx9_SPSR_SRRDY 0x0001 + + +struct txx9spi { + struct workqueue_struct *workqueue; + struct work_struct work; + spinlock_t lock; /* protect 'queue' */ + struct list_head queue; + wait_queue_head_t waitq; + void __iomem *membase; + int irq; + int baseclk; + struct clk *clk; + u32 max_speed_hz, min_speed_hz; + int last_chipselect; + int last_chipselect_val; +}; + +static u32 txx9spi_rd(struct txx9spi *c, int reg) +{ + return __raw_readl(c->membase + reg); +} +static void txx9spi_wr(struct txx9spi *c, u32 val, int reg) +{ + __raw_writel(val, c->membase + reg); +} + +static void txx9spi_cs_func(struct spi_device *spi, struct txx9spi *c, + int on, unsigned int cs_delay) +{ + int val = (spi->mode & SPI_CS_HIGH) ? on : !on; + if (on) { + /* deselect the chip with cs_change hint in last transfer */ + if (c->last_chipselect >= 0) + gpio_set_value(c->last_chipselect, + !c->last_chipselect_val); + c->last_chipselect = spi->chip_select; + c->last_chipselect_val = val; + } else { + c->last_chipselect = -1; + ndelay(cs_delay); /* CS Hold Time */ + } + gpio_set_value(spi->chip_select, val); + ndelay(cs_delay); /* CS Setup Time / CS Recovery Time */ +} + +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CS_HIGH|SPI_CPOL|SPI_CPHA) + +static int txx9spi_setup(struct spi_device *spi) +{ + struct txx9spi *c = spi_master_get_devdata(spi->master); + u8 bits_per_word; + + if (spi->mode & ~MODEBITS) + return -EINVAL; + + if (!spi->max_speed_hz + || spi->max_speed_hz > c->max_speed_hz + || spi->max_speed_hz < c->min_speed_hz) + return -EINVAL; + + bits_per_word = spi->bits_per_word ? : 8; + if (bits_per_word != 8 && bits_per_word != 16) + return -EINVAL; + + if (gpio_direction_output(spi->chip_select, + !(spi->mode & SPI_CS_HIGH))) { + dev_err(&spi->dev, "Cannot setup GPIO for chipselect.\n"); + return -EINVAL; + } + + /* deselect chip */ + spin_lock(&c->lock); + txx9spi_cs_func(spi, c, 0, (NSEC_PER_SEC / 2) / spi->max_speed_hz); + spin_unlock(&c->lock); + + return 0; +} + +static irqreturn_t txx9spi_interrupt(int irq, void *dev_id) +{ + struct txx9spi *c = dev_id; + + /* disable rx intr */ + txx9spi_wr(c, txx9spi_rd(c, TXx9_SPCR0) & ~TXx9_SPCR0_RBSIE, + TXx9_SPCR0); + wake_up(&c->waitq); + return IRQ_HANDLED; +} + +static void txx9spi_work_one(struct txx9spi *c, struct spi_message *m) +{ + struct spi_device *spi = m->spi; + struct spi_transfer *t; + unsigned int cs_delay; + unsigned int cs_change = 1; + int status = 0; + u32 mcr; + u32 prev_speed_hz = 0; + u8 prev_bits_per_word = 0; + + /* CS setup/hold/recovery time in nsec */ + cs_delay = 100 + (NSEC_PER_SEC / 2) / spi->max_speed_hz; + + mcr = txx9spi_rd(c, TXx9_SPMCR); + if (unlikely((mcr & TXx9_SPMCR_OPMODE) == TXx9_SPMCR_ACTIVE)) { + dev_err(&spi->dev, "Bad mode.\n"); + status = -EIO; + goto exit; + } + mcr &= ~(TXx9_SPMCR_OPMODE | TXx9_SPMCR_SPSTP | TXx9_SPMCR_BCLR); + + /* enter config mode */ + txx9spi_wr(c, mcr | TXx9_SPMCR_CONFIG | TXx9_SPMCR_BCLR, TXx9_SPMCR); + txx9spi_wr(c, TXx9_SPCR0_SBOS + | ((spi->mode & SPI_CPOL) ? TXx9_SPCR0_SPOL : 0) + | ((spi->mode & SPI_CPHA) ? TXx9_SPCR0_SPHA : 0) + | 0x08, + TXx9_SPCR0); + + list_for_each_entry (t, &m->transfers, transfer_list) { + const void *txbuf = t->tx_buf; + void *rxbuf = t->rx_buf; + u32 data; + unsigned int len = t->len; + unsigned int wsize; + u32 speed_hz = t->speed_hz ? : spi->max_speed_hz; + u8 bits_per_word = t->bits_per_word ? : spi->bits_per_word; + + bits_per_word = bits_per_word ? : 8; + wsize = bits_per_word >> 3; /* in bytes */ + + if (prev_speed_hz != speed_hz + || prev_bits_per_word != bits_per_word) { + u32 n = (c->baseclk + speed_hz - 1) / speed_hz; + if (n < 1) + n = 1; + else if (n > 0xff) + n = 0xff; + /* enter config mode */ + txx9spi_wr(c, mcr | TXx9_SPMCR_CONFIG | TXx9_SPMCR_BCLR, + TXx9_SPMCR); + txx9spi_wr(c, (n << 8) | bits_per_word, TXx9_SPCR1); + /* enter active mode */ + txx9spi_wr(c, mcr | TXx9_SPMCR_ACTIVE, TXx9_SPMCR); + + prev_speed_hz = speed_hz; + prev_bits_per_word = bits_per_word; + } + + if (cs_change) + txx9spi_cs_func(spi, c, 1, cs_delay); + cs_change = t->cs_change; + while (len) { + unsigned int count = SPI_FIFO_SIZE; + int i; + u32 cr0; + + if (len < count * wsize) + count = len / wsize; + /* now tx must be idle... */ + while (!(txx9spi_rd(c, TXx9_SPSR) & TXx9_SPSR_SIDLE)) + cpu_relax(); + cr0 = txx9spi_rd(c, TXx9_SPCR0); + cr0 &= ~TXx9_SPCR0_RXIFL_MASK; + cr0 |= (count - 1) << 12; + /* enable rx intr */ + cr0 |= TXx9_SPCR0_RBSIE; + txx9spi_wr(c, cr0, TXx9_SPCR0); + /* send */ + for (i = 0; i < count; i++) { + if (txbuf) { + data = (wsize == 1) + ? *(const u8 *)txbuf + : *(const u16 *)txbuf; + txx9spi_wr(c, data, TXx9_SPDR); + txbuf += wsize; + } else + txx9spi_wr(c, 0, TXx9_SPDR); + } + /* wait all rx data */ + wait_event(c->waitq, + txx9spi_rd(c, TXx9_SPSR) & TXx9_SPSR_RBSI); + /* receive */ + for (i = 0; i < count; i++) { + data = txx9spi_rd(c, TXx9_SPDR); + if (rxbuf) { + if (wsize == 1) + *(u8 *)rxbuf = data; + else + *(u16 *)rxbuf = data; + rxbuf += wsize; + } + } + len -= count * wsize; + } + m->actual_length += t->len; + if (t->delay_usecs) + udelay(t->delay_usecs); + + if (!cs_change) + continue; + if (t->transfer_list.next == &m->transfers) + break; + /* sometimes a short mid-message deselect of the chip + * may be needed to terminate a mode or command + */ + txx9spi_cs_func(spi, c, 0, cs_delay); + } + +exit: + m->status = status; + m->complete(m->context); + + /* normally deactivate chipselect ... unless no error and + * cs_change has hinted that the next message will probably + * be for this chip too. + */ + if (!(status == 0 && cs_change)) + txx9spi_cs_func(spi, c, 0, cs_delay); + + /* enter config mode */ + txx9spi_wr(c, mcr | TXx9_SPMCR_CONFIG | TXx9_SPMCR_BCLR, TXx9_SPMCR); +} + +static void txx9spi_work(struct work_struct *work) +{ + struct txx9spi *c = container_of(work, struct txx9spi, work); + unsigned long flags; + + spin_lock_irqsave(&c->lock, flags); + while (!list_empty(&c->queue)) { + struct spi_message *m; + + m = container_of(c->queue.next, struct spi_message, queue); + list_del_init(&m->queue); + spin_unlock_irqrestore(&c->lock, flags); + + txx9spi_work_one(c, m); + + spin_lock_irqsave(&c->lock, flags); + } + spin_unlock_irqrestore(&c->lock, flags); +} + +static int txx9spi_transfer(struct spi_device *spi, struct spi_message *m) +{ + struct spi_master *master = spi->master; + struct txx9spi *c = spi_master_get_devdata(master); + struct spi_transfer *t; + unsigned long flags; + + m->actual_length = 0; + + /* check each transfer's parameters */ + list_for_each_entry (t, &m->transfers, transfer_list) { + u32 speed_hz = t->speed_hz ? : spi->max_speed_hz; + u8 bits_per_word = t->bits_per_word ? : spi->bits_per_word; + + bits_per_word = bits_per_word ? : 8; + if (!t->tx_buf && !t->rx_buf && t->len) + return -EINVAL; + if (bits_per_word != 8 && bits_per_word != 16) + return -EINVAL; + if (t->len & ((bits_per_word >> 3) - 1)) + return -EINVAL; + if (speed_hz < c->min_speed_hz || speed_hz > c->max_speed_hz) + return -EINVAL; + } + + spin_lock_irqsave(&c->lock, flags); + list_add_tail(&m->queue, &c->queue); + queue_work(c->workqueue, &c->work); + spin_unlock_irqrestore(&c->lock, flags); + + return 0; +} + +static int __init txx9spi_probe(struct platform_device *dev) +{ + struct spi_master *master; + struct txx9spi *c; + struct resource *res; + int ret = -ENODEV; + u32 mcr; + + master = spi_alloc_master(&dev->dev, sizeof(*c)); + if (!master) + return ret; + c = spi_master_get_devdata(master); + c->irq = -1; + platform_set_drvdata(dev, master); + + INIT_WORK(&c->work, txx9spi_work); + spin_lock_init(&c->lock); + INIT_LIST_HEAD(&c->queue); + init_waitqueue_head(&c->waitq); + + c->clk = clk_get(&dev->dev, "spi-baseclk"); + if (IS_ERR(c->clk)) { + ret = PTR_ERR(c->clk); + c->clk = NULL; + goto exit; + } + ret = clk_enable(c->clk); + if (ret) { + clk_put(c->clk); + c->clk = NULL; + goto exit; + } + c->baseclk = clk_get_rate(c->clk); + c->min_speed_hz = (c->baseclk + 0xff - 1) / 0xff; + c->max_speed_hz = c->baseclk; + + res = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!res) + goto exit; + c->membase = ioremap(res->start, res->end - res->start + 1); + if (!c->membase) + goto exit; + + /* enter config mode */ + mcr = txx9spi_rd(c, TXx9_SPMCR); + mcr &= ~(TXx9_SPMCR_OPMODE | TXx9_SPMCR_SPSTP | TXx9_SPMCR_BCLR); + txx9spi_wr(c, mcr | TXx9_SPMCR_CONFIG | TXx9_SPMCR_BCLR, TXx9_SPMCR); + + c->irq = platform_get_irq(dev, 0); + if (c->irq < 0) + goto exit; + ret = request_irq(c->irq, txx9spi_interrupt, 0, dev->name, c); + if (ret) { + c->irq = -1; + goto exit; + } + + c->workqueue = create_singlethread_workqueue(master->cdev.dev->bus_id); + if (!c->workqueue) + goto exit; + c->last_chipselect = -1; + + dev_info(&dev->dev, "at %#llx, irq %d, %dMHz\n", + (unsigned long long)res->start, c->irq, + (c->baseclk + 500000) / 1000000); + + master->bus_num = dev->id; + master->setup = txx9spi_setup; + master->transfer = txx9spi_transfer; + master->num_chipselect = (u16)UINT_MAX; /* any GPIO numbers */ + + ret = spi_register_master(master); + if (ret) + goto exit; + return 0; +exit: + if (c->workqueue) + destroy_workqueue(c->workqueue); + if (c->irq >= 0) + free_irq(c->irq, c); + if (c->membase) + iounmap(c->membase); + if (c->clk) { + clk_disable(c->clk); + clk_put(c->clk); + } + platform_set_drvdata(dev, NULL); + spi_master_put(master); + return ret; +} + +static int __exit txx9spi_remove(struct platform_device *dev) +{ + struct spi_master *master = spi_master_get(platform_get_drvdata(dev)); + struct txx9spi *c = spi_master_get_devdata(master); + + spi_unregister_master(master); + platform_set_drvdata(dev, NULL); + destroy_workqueue(c->workqueue); + free_irq(c->irq, c); + iounmap(c->membase); + clk_disable(c->clk); + clk_put(c->clk); + spi_master_put(master); + return 0; +} + +static struct platform_driver txx9spi_driver = { + .remove = __exit_p(txx9spi_remove), + .driver = { + .name = "txx9spi", + .owner = THIS_MODULE, + }, +}; + +static int __init txx9spi_init(void) +{ + return platform_driver_probe(&txx9spi_driver, txx9spi_probe); +} +subsys_initcall(txx9spi_init); + +static void __exit txx9spi_exit(void) +{ + platform_driver_unregister(&txx9spi_driver); +} +module_exit(txx9spi_exit); + +MODULE_DESCRIPTION("TXx9 SPI Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index d04242aee40d..38b60ad0eda0 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -181,7 +181,8 @@ static int spidev_message(struct spidev_data *spidev, } if (u_tmp->tx_buf) { k_tmp->tx_buf = buf; - if (copy_from_user(buf, (const u8 __user *)u_tmp->tx_buf, + if (copy_from_user(buf, (const u8 __user *) + (ptrdiff_t) u_tmp->tx_buf, u_tmp->len)) goto done; } @@ -213,7 +214,8 @@ static int spidev_message(struct spidev_data *spidev, buf = spidev->buffer; for (n = n_xfers, u_tmp = u_xfers; n; n--, u_tmp++) { if (u_tmp->rx_buf) { - if (__copy_to_user((u8 __user *)u_tmp->rx_buf, buf, + if (__copy_to_user((u8 __user *) + (ptrdiff_t) u_tmp->rx_buf, buf, u_tmp->len)) { status = -EFAULT; goto done; diff --git a/drivers/spi/tle62x0.c b/drivers/spi/tle62x0.c new file mode 100644 index 000000000000..6da58ca48b33 --- /dev/null +++ b/drivers/spi/tle62x0.c @@ -0,0 +1,328 @@ +/* + * tle62x0.c -- support Infineon TLE62x0 driver chips + * + * Copyright (c) 2007 Simtec Electronics + * Ben Dooks, <ben@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/device.h> +#include <linux/kernel.h> + +#include <linux/spi/spi.h> +#include <linux/spi/tle62x0.h> + + +#define CMD_READ 0x00 +#define CMD_SET 0xff + +#define DIAG_NORMAL 0x03 +#define DIAG_OVERLOAD 0x02 +#define DIAG_OPEN 0x01 +#define DIAG_SHORTGND 0x00 + +struct tle62x0_state { + struct spi_device *us; + struct mutex lock; + unsigned int nr_gpio; + unsigned int gpio_state; + + unsigned char tx_buff[4]; + unsigned char rx_buff[4]; +}; + +static int to_gpio_num(struct device_attribute *attr); + +static inline int tle62x0_write(struct tle62x0_state *st) +{ + unsigned char *buff = st->tx_buff; + unsigned int gpio_state = st->gpio_state; + + buff[0] = CMD_SET; + + if (st->nr_gpio == 16) { + buff[1] = gpio_state >> 8; + buff[2] = gpio_state; + } else { + buff[1] = gpio_state; + } + + dev_dbg(&st->us->dev, "buff %02x,%02x,%02x\n", + buff[0], buff[1], buff[2]); + + return spi_write(st->us, buff, (st->nr_gpio == 16) ? 3 : 2); +} + +static inline int tle62x0_read(struct tle62x0_state *st) +{ + unsigned char *txbuff = st->tx_buff; + struct spi_transfer xfer = { + .tx_buf = txbuff, + .rx_buf = st->rx_buff, + .len = (st->nr_gpio * 2) / 8, + }; + struct spi_message msg; + + txbuff[0] = CMD_READ; + txbuff[1] = 0x00; + txbuff[2] = 0x00; + txbuff[3] = 0x00; + + spi_message_init(&msg); + spi_message_add_tail(&xfer, &msg); + + return spi_sync(st->us, &msg); +} + +static unsigned char *decode_fault(unsigned int fault_code) +{ + fault_code &= 3; + + switch (fault_code) { + case DIAG_NORMAL: + return "N"; + case DIAG_OVERLOAD: + return "V"; + case DIAG_OPEN: + return "O"; + case DIAG_SHORTGND: + return "G"; + } + + return "?"; +} + +static ssize_t tle62x0_status_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct tle62x0_state *st = dev_get_drvdata(dev); + char *bp = buf; + unsigned char *buff = st->rx_buff; + unsigned long fault = 0; + int ptr; + int ret; + + mutex_lock(&st->lock); + ret = tle62x0_read(st); + + dev_dbg(dev, "tle62x0_read() returned %d\n", ret); + + for (ptr = 0; ptr < (st->nr_gpio * 2)/8; ptr += 1) { + fault <<= 8; + fault |= ((unsigned long)buff[ptr]); + + dev_dbg(dev, "byte %d is %02x\n", ptr, buff[ptr]); + } + + for (ptr = 0; ptr < st->nr_gpio; ptr++) { + bp += sprintf(bp, "%s ", decode_fault(fault >> (ptr * 2))); + } + + *bp++ = '\n'; + + mutex_unlock(&st->lock); + return bp - buf; +} + +static DEVICE_ATTR(status_show, S_IRUGO, tle62x0_status_show, NULL); + +static ssize_t tle62x0_gpio_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct tle62x0_state *st = dev_get_drvdata(dev); + int gpio_num = to_gpio_num(attr); + int value; + + mutex_lock(&st->lock); + value = (st->gpio_state >> gpio_num) & 1; + mutex_unlock(&st->lock); + + return snprintf(buf, PAGE_SIZE, "%d", value); +} + +static ssize_t tle62x0_gpio_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct tle62x0_state *st = dev_get_drvdata(dev); + int gpio_num = to_gpio_num(attr); + unsigned long val; + char *endp; + + val = simple_strtoul(buf, &endp, 0); + if (buf == endp) + return -EINVAL; + + dev_dbg(dev, "setting gpio %d to %ld\n", gpio_num, val); + + mutex_lock(&st->lock); + + if (val) + st->gpio_state |= 1 << gpio_num; + else + st->gpio_state &= ~(1 << gpio_num); + + tle62x0_write(st); + mutex_unlock(&st->lock); + + return len; +} + +static DEVICE_ATTR(gpio1, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio2, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio3, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio4, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio5, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio6, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio7, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio8, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio9, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio10, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio11, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio12, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio13, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio14, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio15, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); +static DEVICE_ATTR(gpio16, S_IWUSR|S_IRUGO, + tle62x0_gpio_show, tle62x0_gpio_store); + +static struct device_attribute *gpio_attrs[] = { + [0] = &dev_attr_gpio1, + [1] = &dev_attr_gpio2, + [2] = &dev_attr_gpio3, + [3] = &dev_attr_gpio4, + [4] = &dev_attr_gpio5, + [5] = &dev_attr_gpio6, + [6] = &dev_attr_gpio7, + [7] = &dev_attr_gpio8, + [8] = &dev_attr_gpio9, + [9] = &dev_attr_gpio10, + [10] = &dev_attr_gpio11, + [11] = &dev_attr_gpio12, + [12] = &dev_attr_gpio13, + [13] = &dev_attr_gpio14, + [14] = &dev_attr_gpio15, + [15] = &dev_attr_gpio16 +}; + +static int to_gpio_num(struct device_attribute *attr) +{ + int ptr; + + for (ptr = 0; ptr < ARRAY_SIZE(gpio_attrs); ptr++) { + if (gpio_attrs[ptr] == attr) + return ptr; + } + + return -1; +} + +static int __devinit tle62x0_probe(struct spi_device *spi) +{ + struct tle62x0_state *st; + struct tle62x0_pdata *pdata; + int ptr; + int ret; + + pdata = spi->dev.platform_data; + if (pdata == NULL) { + dev_err(&spi->dev, "no device data specified\n"); + return -EINVAL; + } + + st = kzalloc(sizeof(struct tle62x0_state), GFP_KERNEL); + if (st == NULL) { + dev_err(&spi->dev, "no memory for device state\n"); + return -ENOMEM; + } + + st->us = spi; + st->nr_gpio = pdata->gpio_count; + st->gpio_state = pdata->init_state; + + mutex_init(&st->lock); + + ret = device_create_file(&spi->dev, &dev_attr_status_show); + if (ret) { + dev_err(&spi->dev, "cannot create status attribute\n"); + goto err_status; + } + + for (ptr = 0; ptr < pdata->gpio_count; ptr++) { + ret = device_create_file(&spi->dev, gpio_attrs[ptr]); + if (ret) { + dev_err(&spi->dev, "cannot create gpio attribute\n"); + goto err_gpios; + } + } + + /* tle62x0_write(st); */ + spi_set_drvdata(spi, st); + return 0; + + err_gpios: + for (; ptr > 0; ptr--) + device_remove_file(&spi->dev, gpio_attrs[ptr]); + + device_remove_file(&spi->dev, &dev_attr_status_show); + + err_status: + kfree(st); + return ret; +} + +static int __devexit tle62x0_remove(struct spi_device *spi) +{ + struct tle62x0_state *st = spi_get_drvdata(spi); + int ptr; + + for (ptr = 0; ptr < st->nr_gpio; ptr++) + device_remove_file(&spi->dev, gpio_attrs[ptr]); + + kfree(st); + return 0; +} + +static struct spi_driver tle62x0_driver = { + .driver = { + .name = "tle62x0", + .owner = THIS_MODULE, + }, + .probe = tle62x0_probe, + .remove = __devexit_p(tle62x0_remove), +}; + +static __init int tle62x0_init(void) +{ + return spi_register_driver(&tle62x0_driver); +} + +static __exit void tle62x0_exit(void) +{ + spi_unregister_driver(&tle62x0_driver); +} + +module_init(tle62x0_init); +module_exit(tle62x0_exit); + +MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); +MODULE_DESCRIPTION("TLE62x0 SPI driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c new file mode 100644 index 000000000000..f0bf9a68e96b --- /dev/null +++ b/drivers/spi/xilinx_spi.c @@ -0,0 +1,434 @@ +/* + * xilinx_spi.c + * + * Xilinx SPI controller driver (master mode only) + * + * Author: MontaVista Software, Inc. + * source@mvista.com + * + * 2002-2007 (c) MontaVista Software, Inc. This file is licensed under the + * terms of the GNU General Public License version 2. This program is licensed + * "as is" without any warranty of any kind, whether express or implied. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/spi/spi_bitbang.h> +#include <linux/io.h> + +#include <syslib/virtex_devices.h> + +#define XILINX_SPI_NAME "xspi" + +/* Register definitions as per "OPB Serial Peripheral Interface (SPI) (v1.00e) + * Product Specification", DS464 + */ +#define XSPI_CR_OFFSET 0x62 /* 16-bit Control Register */ + +#define XSPI_CR_ENABLE 0x02 +#define XSPI_CR_MASTER_MODE 0x04 +#define XSPI_CR_CPOL 0x08 +#define XSPI_CR_CPHA 0x10 +#define XSPI_CR_MODE_MASK (XSPI_CR_CPHA | XSPI_CR_CPOL) +#define XSPI_CR_TXFIFO_RESET 0x20 +#define XSPI_CR_RXFIFO_RESET 0x40 +#define XSPI_CR_MANUAL_SSELECT 0x80 +#define XSPI_CR_TRANS_INHIBIT 0x100 + +#define XSPI_SR_OFFSET 0x67 /* 8-bit Status Register */ + +#define XSPI_SR_RX_EMPTY_MASK 0x01 /* Receive FIFO is empty */ +#define XSPI_SR_RX_FULL_MASK 0x02 /* Receive FIFO is full */ +#define XSPI_SR_TX_EMPTY_MASK 0x04 /* Transmit FIFO is empty */ +#define XSPI_SR_TX_FULL_MASK 0x08 /* Transmit FIFO is full */ +#define XSPI_SR_MODE_FAULT_MASK 0x10 /* Mode fault error */ + +#define XSPI_TXD_OFFSET 0x6b /* 8-bit Data Transmit Register */ +#define XSPI_RXD_OFFSET 0x6f /* 8-bit Data Receive Register */ + +#define XSPI_SSR_OFFSET 0x70 /* 32-bit Slave Select Register */ + +/* Register definitions as per "OPB IPIF (v3.01c) Product Specification", DS414 + * IPIF registers are 32 bit + */ +#define XIPIF_V123B_DGIER_OFFSET 0x1c /* IPIF global int enable reg */ +#define XIPIF_V123B_GINTR_ENABLE 0x80000000 + +#define XIPIF_V123B_IISR_OFFSET 0x20 /* IPIF interrupt status reg */ +#define XIPIF_V123B_IIER_OFFSET 0x28 /* IPIF interrupt enable reg */ + +#define XSPI_INTR_MODE_FAULT 0x01 /* Mode fault error */ +#define XSPI_INTR_SLAVE_MODE_FAULT 0x02 /* Selected as slave while + * disabled */ +#define XSPI_INTR_TX_EMPTY 0x04 /* TxFIFO is empty */ +#define XSPI_INTR_TX_UNDERRUN 0x08 /* TxFIFO was underrun */ +#define XSPI_INTR_RX_FULL 0x10 /* RxFIFO is full */ +#define XSPI_INTR_RX_OVERRUN 0x20 /* RxFIFO was overrun */ + +#define XIPIF_V123B_RESETR_OFFSET 0x40 /* IPIF reset register */ +#define XIPIF_V123B_RESET_MASK 0x0a /* the value to write */ + +struct xilinx_spi { + /* bitbang has to be first */ + struct spi_bitbang bitbang; + struct completion done; + + void __iomem *regs; /* virt. address of the control registers */ + + u32 irq; + + u32 speed_hz; /* SCK has a fixed frequency of speed_hz Hz */ + + u8 *rx_ptr; /* pointer in the Tx buffer */ + const u8 *tx_ptr; /* pointer in the Rx buffer */ + int remaining_bytes; /* the number of bytes left to transfer */ +}; + +static void xspi_init_hw(void __iomem *regs_base) +{ + /* Reset the SPI device */ + out_be32(regs_base + XIPIF_V123B_RESETR_OFFSET, + XIPIF_V123B_RESET_MASK); + /* Disable all the interrupts just in case */ + out_be32(regs_base + XIPIF_V123B_IIER_OFFSET, 0); + /* Enable the global IPIF interrupt */ + out_be32(regs_base + XIPIF_V123B_DGIER_OFFSET, + XIPIF_V123B_GINTR_ENABLE); + /* Deselect the slave on the SPI bus */ + out_be32(regs_base + XSPI_SSR_OFFSET, 0xffff); + /* Disable the transmitter, enable Manual Slave Select Assertion, + * put SPI controller into master mode, and enable it */ + out_be16(regs_base + XSPI_CR_OFFSET, + XSPI_CR_TRANS_INHIBIT | XSPI_CR_MANUAL_SSELECT + | XSPI_CR_MASTER_MODE | XSPI_CR_ENABLE); +} + +static void xilinx_spi_chipselect(struct spi_device *spi, int is_on) +{ + struct xilinx_spi *xspi = spi_master_get_devdata(spi->master); + + if (is_on == BITBANG_CS_INACTIVE) { + /* Deselect the slave on the SPI bus */ + out_be32(xspi->regs + XSPI_SSR_OFFSET, 0xffff); + } else if (is_on == BITBANG_CS_ACTIVE) { + /* Set the SPI clock phase and polarity */ + u16 cr = in_be16(xspi->regs + XSPI_CR_OFFSET) + & ~XSPI_CR_MODE_MASK; + if (spi->mode & SPI_CPHA) + cr |= XSPI_CR_CPHA; + if (spi->mode & SPI_CPOL) + cr |= XSPI_CR_CPOL; + out_be16(xspi->regs + XSPI_CR_OFFSET, cr); + + /* We do not check spi->max_speed_hz here as the SPI clock + * frequency is not software programmable (the IP block design + * parameter) + */ + + /* Activate the chip select */ + out_be32(xspi->regs + XSPI_SSR_OFFSET, + ~(0x0001 << spi->chip_select)); + } +} + +/* spi_bitbang requires custom setup_transfer() to be defined if there is a + * custom txrx_bufs(). We have nothing to setup here as the SPI IP block + * supports just 8 bits per word, and SPI clock can't be changed in software. + * Check for 8 bits per word. Chip select delay calculations could be + * added here as soon as bitbang_work() can be made aware of the delay value. + */ +static int xilinx_spi_setup_transfer(struct spi_device *spi, + struct spi_transfer *t) +{ + u8 bits_per_word; + u32 hz; + struct xilinx_spi *xspi = spi_master_get_devdata(spi->master); + + bits_per_word = (t) ? t->bits_per_word : spi->bits_per_word; + hz = (t) ? t->speed_hz : spi->max_speed_hz; + if (bits_per_word != 8) { + dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n", + __FUNCTION__, bits_per_word); + return -EINVAL; + } + + if (hz && xspi->speed_hz > hz) { + dev_err(&spi->dev, "%s, unsupported clock rate %uHz\n", + __FUNCTION__, hz); + return -EINVAL; + } + + return 0; +} + +/* the spi->mode bits understood by this driver: */ +#define MODEBITS (SPI_CPOL | SPI_CPHA) + +static int xilinx_spi_setup(struct spi_device *spi) +{ + struct spi_bitbang *bitbang; + struct xilinx_spi *xspi; + int retval; + + xspi = spi_master_get_devdata(spi->master); + bitbang = &xspi->bitbang; + + if (!spi->bits_per_word) + spi->bits_per_word = 8; + + if (spi->mode & ~MODEBITS) { + dev_err(&spi->dev, "%s, unsupported mode bits %x\n", + __FUNCTION__, spi->mode & ~MODEBITS); + return -EINVAL; + } + + retval = xilinx_spi_setup_transfer(spi, NULL); + if (retval < 0) + return retval; + + dev_dbg(&spi->dev, "%s, mode %d, %u bits/w, %u nsec/bit\n", + __FUNCTION__, spi->mode & MODEBITS, spi->bits_per_word, 0); + + return 0; +} + +static void xilinx_spi_fill_tx_fifo(struct xilinx_spi *xspi) +{ + u8 sr; + + /* Fill the Tx FIFO with as many bytes as possible */ + sr = in_8(xspi->regs + XSPI_SR_OFFSET); + while ((sr & XSPI_SR_TX_FULL_MASK) == 0 && xspi->remaining_bytes > 0) { + if (xspi->tx_ptr) { + out_8(xspi->regs + XSPI_TXD_OFFSET, *xspi->tx_ptr++); + } else { + out_8(xspi->regs + XSPI_TXD_OFFSET, 0); + } + xspi->remaining_bytes--; + sr = in_8(xspi->regs + XSPI_SR_OFFSET); + } +} + +static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) +{ + struct xilinx_spi *xspi = spi_master_get_devdata(spi->master); + u32 ipif_ier; + u16 cr; + + /* We get here with transmitter inhibited */ + + xspi->tx_ptr = t->tx_buf; + xspi->rx_ptr = t->rx_buf; + xspi->remaining_bytes = t->len; + INIT_COMPLETION(xspi->done); + + xilinx_spi_fill_tx_fifo(xspi); + + /* Enable the transmit empty interrupt, which we use to determine + * progress on the transmission. + */ + ipif_ier = in_be32(xspi->regs + XIPIF_V123B_IIER_OFFSET); + out_be32(xspi->regs + XIPIF_V123B_IIER_OFFSET, + ipif_ier | XSPI_INTR_TX_EMPTY); + + /* Start the transfer by not inhibiting the transmitter any longer */ + cr = in_be16(xspi->regs + XSPI_CR_OFFSET) & ~XSPI_CR_TRANS_INHIBIT; + out_be16(xspi->regs + XSPI_CR_OFFSET, cr); + + wait_for_completion(&xspi->done); + + /* Disable the transmit empty interrupt */ + out_be32(xspi->regs + XIPIF_V123B_IIER_OFFSET, ipif_ier); + + return t->len - xspi->remaining_bytes; +} + + +/* This driver supports single master mode only. Hence Tx FIFO Empty + * is the only interrupt we care about. + * Receive FIFO Overrun, Transmit FIFO Underrun, Mode Fault, and Slave Mode + * Fault are not to happen. + */ +static irqreturn_t xilinx_spi_irq(int irq, void *dev_id) +{ + struct xilinx_spi *xspi = dev_id; + u32 ipif_isr; + + /* Get the IPIF interrupts, and clear them immediately */ + ipif_isr = in_be32(xspi->regs + XIPIF_V123B_IISR_OFFSET); + out_be32(xspi->regs + XIPIF_V123B_IISR_OFFSET, ipif_isr); + + if (ipif_isr & XSPI_INTR_TX_EMPTY) { /* Transmission completed */ + u16 cr; + u8 sr; + + /* A transmit has just completed. Process received data and + * check for more data to transmit. Always inhibit the + * transmitter while the Isr refills the transmit register/FIFO, + * or make sure it is stopped if we're done. + */ + cr = in_be16(xspi->regs + XSPI_CR_OFFSET); + out_be16(xspi->regs + XSPI_CR_OFFSET, + cr | XSPI_CR_TRANS_INHIBIT); + + /* Read out all the data from the Rx FIFO */ + sr = in_8(xspi->regs + XSPI_SR_OFFSET); + while ((sr & XSPI_SR_RX_EMPTY_MASK) == 0) { + u8 data; + + data = in_8(xspi->regs + XSPI_RXD_OFFSET); + if (xspi->rx_ptr) { + *xspi->rx_ptr++ = data; + } + sr = in_8(xspi->regs + XSPI_SR_OFFSET); + } + + /* See if there is more data to send */ + if (xspi->remaining_bytes > 0) { + xilinx_spi_fill_tx_fifo(xspi); + /* Start the transfer by not inhibiting the + * transmitter any longer + */ + out_be16(xspi->regs + XSPI_CR_OFFSET, cr); + } else { + /* No more data to send. + * Indicate the transfer is completed. + */ + complete(&xspi->done); + } + } + + return IRQ_HANDLED; +} + +static int __init xilinx_spi_probe(struct platform_device *dev) +{ + int ret = 0; + struct spi_master *master; + struct xilinx_spi *xspi; + struct xspi_platform_data *pdata; + struct resource *r; + + /* Get resources(memory, IRQ) associated with the device */ + master = spi_alloc_master(&dev->dev, sizeof(struct xilinx_spi)); + + if (master == NULL) { + return -ENOMEM; + } + + platform_set_drvdata(dev, master); + pdata = dev->dev.platform_data; + + if (pdata == NULL) { + ret = -ENODEV; + goto put_master; + } + + r = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (r == NULL) { + ret = -ENODEV; + goto put_master; + } + + xspi = spi_master_get_devdata(master); + xspi->bitbang.master = spi_master_get(master); + xspi->bitbang.chipselect = xilinx_spi_chipselect; + xspi->bitbang.setup_transfer = xilinx_spi_setup_transfer; + xspi->bitbang.txrx_bufs = xilinx_spi_txrx_bufs; + xspi->bitbang.master->setup = xilinx_spi_setup; + init_completion(&xspi->done); + + if (!request_mem_region(r->start, + r->end - r->start + 1, XILINX_SPI_NAME)) { + ret = -ENXIO; + goto put_master; + } + + xspi->regs = ioremap(r->start, r->end - r->start + 1); + if (xspi->regs == NULL) { + ret = -ENOMEM; + goto put_master; + } + + xspi->irq = platform_get_irq(dev, 0); + if (xspi->irq < 0) { + ret = -ENXIO; + goto unmap_io; + } + + master->bus_num = pdata->bus_num; + master->num_chipselect = pdata->num_chipselect; + xspi->speed_hz = pdata->speed_hz; + + /* SPI controller initializations */ + xspi_init_hw(xspi->regs); + + /* Register for SPI Interrupt */ + ret = request_irq(xspi->irq, xilinx_spi_irq, 0, XILINX_SPI_NAME, xspi); + if (ret != 0) + goto unmap_io; + + ret = spi_bitbang_start(&xspi->bitbang); + if (ret != 0) { + dev_err(&dev->dev, "spi_bitbang_start FAILED\n"); + goto free_irq; + } + + dev_info(&dev->dev, "at 0x%08X mapped to 0x%08X, irq=%d\n", + r->start, (u32)xspi->regs, xspi->irq); + + return ret; + +free_irq: + free_irq(xspi->irq, xspi); +unmap_io: + iounmap(xspi->regs); +put_master: + spi_master_put(master); + return ret; +} + +static int __devexit xilinx_spi_remove(struct platform_device *dev) +{ + struct xilinx_spi *xspi; + struct spi_master *master; + + master = platform_get_drvdata(dev); + xspi = spi_master_get_devdata(master); + + spi_bitbang_stop(&xspi->bitbang); + free_irq(xspi->irq, xspi); + iounmap(xspi->regs); + platform_set_drvdata(dev, 0); + spi_master_put(xspi->bitbang.master); + + return 0; +} + +static struct platform_driver xilinx_spi_driver = { + .probe = xilinx_spi_probe, + .remove = __devexit_p(xilinx_spi_remove), + .driver = { + .name = XILINX_SPI_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init xilinx_spi_init(void) +{ + return platform_driver_register(&xilinx_spi_driver); +} +module_init(xilinx_spi_init); + +static void __exit xilinx_spi_exit(void) +{ + platform_driver_unregister(&xilinx_spi_driver); +} +module_exit(xilinx_spi_exit); + +MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>"); +MODULE_DESCRIPTION("Xilinx SPI driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/tc/Makefile b/drivers/tc/Makefile index 967342692211..c899246bd362 100644 --- a/drivers/tc/Makefile +++ b/drivers/tc/Makefile @@ -5,7 +5,6 @@ # Object file lists. obj-$(CONFIG_TC) += tc.o tc-driver.o -obj-$(CONFIG_ZS) += zs.o obj-$(CONFIG_VT) += lk201.o lk201-map.o lk201-remap.o $(obj)/lk201-map.o: $(obj)/lk201-map.c diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c deleted file mode 100644 index ed979f13908a..000000000000 --- a/drivers/tc/zs.c +++ /dev/null @@ -1,2203 +0,0 @@ -/* - * decserial.c: Serial port driver for IOASIC DECstations. - * - * Derived from drivers/sbus/char/sunserial.c by Paul Mackerras. - * Derived from drivers/macintosh/macserial.c by Harald Koerfgen. - * - * DECstation changes - * Copyright (C) 1998-2000 Harald Koerfgen - * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Maciej W. Rozycki - * - * For the rest of the code the original Copyright applies: - * Copyright (C) 1996 Paul Mackerras (Paul.Mackerras@cs.anu.edu.au) - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * - * - * Note: for IOASIC systems the wiring is as follows: - * - * mouse/keyboard: - * DIN-7 MJ-4 signal SCC - * 2 1 TxD <- A.TxD - * 3 4 RxD -> A.RxD - * - * EIA-232/EIA-423: - * DB-25 MMJ-6 signal SCC - * 2 2 TxD <- B.TxD - * 3 5 RxD -> B.RxD - * 4 RTS <- ~A.RTS - * 5 CTS -> ~B.CTS - * 6 6 DSR -> ~A.SYNC - * 8 CD -> ~B.DCD - * 12 DSRS(DCE) -> ~A.CTS (*) - * 15 TxC -> B.TxC - * 17 RxC -> B.RxC - * 20 1 DTR <- ~A.DTR - * 22 RI -> ~A.DCD - * 23 DSRS(DTE) <- ~B.RTS - * - * (*) EIA-232 defines the signal at this pin to be SCD, while DSRS(DCE) - * is shared with DSRS(DTE) at pin 23. - */ - -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/interrupt.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/major.h> -#include <linux/string.h> -#include <linux/fcntl.h> -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/spinlock.h> -#ifdef CONFIG_SERIAL_DEC_CONSOLE -#include <linux/console.h> -#endif - -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/irq.h> -#include <asm/system.h> -#include <asm/bootinfo.h> - -#include <asm/dec/interrupts.h> -#include <asm/dec/ioasic_addrs.h> -#include <asm/dec/machtype.h> -#include <asm/dec/serial.h> -#include <asm/dec/system.h> - -#ifdef CONFIG_KGDB -#include <asm/kgdb.h> -#endif -#ifdef CONFIG_MAGIC_SYSRQ -#include <linux/sysrq.h> -#endif - -#include "zs.h" - -/* - * It would be nice to dynamically allocate everything that - * depends on NUM_SERIAL, so we could support any number of - * Z8530s, but for now... - */ -#define NUM_SERIAL 2 /* Max number of ZS chips supported */ -#define NUM_CHANNELS (NUM_SERIAL * 2) /* 2 channels per chip */ -#define CHANNEL_A_NR (zs_parms->channel_a_offset > zs_parms->channel_b_offset) - /* Number of channel A in the chip */ -#define ZS_CHAN_IO_SIZE 8 -#define ZS_CLOCK 7372800 /* Z8530 RTxC input clock rate */ - -#define RECOVERY_DELAY udelay(2) - -struct zs_parms { - unsigned long scc0; - unsigned long scc1; - int channel_a_offset; - int channel_b_offset; - int irq0; - int irq1; - int clock; -}; - -static struct zs_parms *zs_parms; - -#ifdef CONFIG_MACH_DECSTATION -static struct zs_parms ds_parms = { - scc0 : IOASIC_SCC0, - scc1 : IOASIC_SCC1, - channel_a_offset : 1, - channel_b_offset : 9, - irq0 : -1, - irq1 : -1, - clock : ZS_CLOCK -}; -#endif - -#ifdef CONFIG_MACH_DECSTATION -#define DS_BUS_PRESENT (IOASIC) -#else -#define DS_BUS_PRESENT 0 -#endif - -#define BUS_PRESENT (DS_BUS_PRESENT) - -DEFINE_SPINLOCK(zs_lock); - -struct dec_zschannel zs_channels[NUM_CHANNELS]; -struct dec_serial zs_soft[NUM_CHANNELS]; -int zs_channels_found; -struct dec_serial *zs_chain; /* list of all channels */ - -struct tty_struct zs_ttys[NUM_CHANNELS]; - -#ifdef CONFIG_SERIAL_DEC_CONSOLE -static struct console zs_console; -#endif -#if defined(CONFIG_SERIAL_DEC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) && \ - !defined(MODULE) -static unsigned long break_pressed; /* break, really ... */ -#endif - -static unsigned char zs_init_regs[16] __initdata = { - 0, /* write 0 */ - 0, /* write 1 */ - 0, /* write 2 */ - 0, /* write 3 */ - (X16CLK), /* write 4 */ - 0, /* write 5 */ - 0, 0, 0, /* write 6, 7, 8 */ - (MIE | DLC | NV), /* write 9 */ - (NRZ), /* write 10 */ - (TCBR | RCBR), /* write 11 */ - 0, 0, /* BRG time constant, write 12 + 13 */ - (BRSRC | BRENABL), /* write 14 */ - 0 /* write 15 */ -}; - -static struct tty_driver *serial_driver; - -/* serial subtype definitions */ -#define SERIAL_TYPE_NORMAL 1 - -/* number of characters left in xmit buffer before we ask for more */ -#define WAKEUP_CHARS 256 - -/* - * Debugging. - */ -#undef SERIAL_DEBUG_OPEN -#undef SERIAL_DEBUG_FLOW -#undef SERIAL_DEBUG_THROTTLE -#undef SERIAL_PARANOIA_CHECK - -#undef ZS_DEBUG_REGS - -#ifdef SERIAL_DEBUG_THROTTLE -#define _tty_name(tty,buf) tty_name(tty,buf) -#endif - -#define RS_STROBE_TIME 10 -#define RS_ISR_PASS_LIMIT 256 - -static void probe_sccs(void); -static void change_speed(struct dec_serial *info); -static void rs_wait_until_sent(struct tty_struct *tty, int timeout); - -static inline int serial_paranoia_check(struct dec_serial *info, - char *name, const char *routine) -{ -#ifdef SERIAL_PARANOIA_CHECK - static const char *badmagic = - "Warning: bad magic number for serial struct %s in %s\n"; - static const char *badinfo = - "Warning: null mac_serial for %s in %s\n"; - - if (!info) { - printk(badinfo, name, routine); - return 1; - } - if (info->magic != SERIAL_MAGIC) { - printk(badmagic, name, routine); - return 1; - } -#endif - return 0; -} - -/* - * This is used to figure out the divisor speeds and the timeouts - */ -static int baud_table[] = { - 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, - 9600, 19200, 38400, 57600, 115200, 0 }; - -/* - * Reading and writing Z8530 registers. - */ -static inline unsigned char read_zsreg(struct dec_zschannel *channel, - unsigned char reg) -{ - unsigned char retval; - - if (reg != 0) { - *channel->control = reg & 0xf; - fast_iob(); RECOVERY_DELAY; - } - retval = *channel->control; - RECOVERY_DELAY; - return retval; -} - -static inline void write_zsreg(struct dec_zschannel *channel, - unsigned char reg, unsigned char value) -{ - if (reg != 0) { - *channel->control = reg & 0xf; - fast_iob(); RECOVERY_DELAY; - } - *channel->control = value; - fast_iob(); RECOVERY_DELAY; - return; -} - -static inline unsigned char read_zsdata(struct dec_zschannel *channel) -{ - unsigned char retval; - - retval = *channel->data; - RECOVERY_DELAY; - return retval; -} - -static inline void write_zsdata(struct dec_zschannel *channel, - unsigned char value) -{ - *channel->data = value; - fast_iob(); RECOVERY_DELAY; - return; -} - -static inline void load_zsregs(struct dec_zschannel *channel, - unsigned char *regs) -{ -/* ZS_CLEARERR(channel); - ZS_CLEARFIFO(channel); */ - /* Load 'em up */ - write_zsreg(channel, R3, regs[R3] & ~RxENABLE); - write_zsreg(channel, R5, regs[R5] & ~TxENAB); - write_zsreg(channel, R4, regs[R4]); - write_zsreg(channel, R9, regs[R9]); - write_zsreg(channel, R1, regs[R1]); - write_zsreg(channel, R2, regs[R2]); - write_zsreg(channel, R10, regs[R10]); - write_zsreg(channel, R11, regs[R11]); - write_zsreg(channel, R12, regs[R12]); - write_zsreg(channel, R13, regs[R13]); - write_zsreg(channel, R14, regs[R14]); - write_zsreg(channel, R15, regs[R15]); - write_zsreg(channel, R3, regs[R3]); - write_zsreg(channel, R5, regs[R5]); - return; -} - -/* Sets or clears DTR/RTS on the requested line */ -static inline void zs_rtsdtr(struct dec_serial *info, int which, int set) -{ - unsigned long flags; - - spin_lock_irqsave(&zs_lock, flags); - if (info->zs_channel != info->zs_chan_a) { - if (set) { - info->zs_chan_a->curregs[5] |= (which & (RTS | DTR)); - } else { - info->zs_chan_a->curregs[5] &= ~(which & (RTS | DTR)); - } - write_zsreg(info->zs_chan_a, 5, info->zs_chan_a->curregs[5]); - } - spin_unlock_irqrestore(&zs_lock, flags); -} - -/* Utility routines for the Zilog */ -static inline int get_zsbaud(struct dec_serial *ss) -{ - struct dec_zschannel *channel = ss->zs_channel; - int brg; - - /* The baud rate is split up between two 8-bit registers in - * what is termed 'BRG time constant' format in my docs for - * the chip, it is a function of the clk rate the chip is - * receiving which happens to be constant. - */ - brg = (read_zsreg(channel, 13) << 8); - brg |= read_zsreg(channel, 12); - return BRG_TO_BPS(brg, (zs_parms->clock/(ss->clk_divisor))); -} - -/* On receive, this clears errors and the receiver interrupts */ -static inline void rs_recv_clear(struct dec_zschannel *zsc) -{ - write_zsreg(zsc, 0, ERR_RES); - write_zsreg(zsc, 0, RES_H_IUS); /* XXX this is unnecessary */ -} - -/* - * ---------------------------------------------------------------------- - * - * Here starts the interrupt handling routines. All of the following - * subroutines are declared as inline and are folded into - * rs_interrupt(). They were separated out for readability's sake. - * - * - Ted Ts'o (tytso@mit.edu), 7-Mar-93 - * ----------------------------------------------------------------------- - */ - -/* - * This routine is used by the interrupt handler to schedule - * processing in the software interrupt portion of the driver. - */ -static void rs_sched_event(struct dec_serial *info, int event) -{ - info->event |= 1 << event; - tasklet_schedule(&info->tlet); -} - -static void receive_chars(struct dec_serial *info) -{ - struct tty_struct *tty = info->tty; - unsigned char ch, stat, flag; - - while ((read_zsreg(info->zs_channel, R0) & Rx_CH_AV) != 0) { - - stat = read_zsreg(info->zs_channel, R1); - ch = read_zsdata(info->zs_channel); - - if (!tty && (!info->hook || !info->hook->rx_char)) - continue; - - flag = TTY_NORMAL; - if (info->tty_break) { - info->tty_break = 0; - flag = TTY_BREAK; - if (info->flags & ZILOG_SAK) - do_SAK(tty); - /* Ignore the null char got when BREAK is removed. */ - if (ch == 0) - continue; - } else { - if (stat & Rx_OVR) { - flag = TTY_OVERRUN; - } else if (stat & FRM_ERR) { - flag = TTY_FRAME; - } else if (stat & PAR_ERR) { - flag = TTY_PARITY; - } - if (flag != TTY_NORMAL) - /* reset the error indication */ - write_zsreg(info->zs_channel, R0, ERR_RES); - } - -#if defined(CONFIG_SERIAL_DEC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) && \ - !defined(MODULE) - if (break_pressed && info->line == zs_console.index) { - /* Ignore the null char got when BREAK is removed. */ - if (ch == 0) - continue; - if (time_before(jiffies, break_pressed + HZ * 5)) { - handle_sysrq(ch, NULL); - break_pressed = 0; - continue; - } - break_pressed = 0; - } -#endif - - if (info->hook && info->hook->rx_char) { - (*info->hook->rx_char)(ch, flag); - return; - } - - tty_insert_flip_char(tty, ch, flag); - } - if (tty) - tty_flip_buffer_push(tty); -} - -static void transmit_chars(struct dec_serial *info) -{ - if ((read_zsreg(info->zs_channel, R0) & Tx_BUF_EMP) == 0) - return; - info->tx_active = 0; - - if (info->x_char) { - /* Send next char */ - write_zsdata(info->zs_channel, info->x_char); - info->x_char = 0; - info->tx_active = 1; - return; - } - - if ((info->xmit_cnt <= 0) || (info->tty && info->tty->stopped) - || info->tx_stopped) { - write_zsreg(info->zs_channel, R0, RES_Tx_P); - return; - } - /* Send char */ - write_zsdata(info->zs_channel, info->xmit_buf[info->xmit_tail++]); - info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1); - info->xmit_cnt--; - info->tx_active = 1; - - if (info->xmit_cnt < WAKEUP_CHARS) - rs_sched_event(info, RS_EVENT_WRITE_WAKEUP); -} - -static void status_handle(struct dec_serial *info) -{ - unsigned char stat; - - /* Get status from Read Register 0 */ - stat = read_zsreg(info->zs_channel, R0); - - if ((stat & BRK_ABRT) && !(info->read_reg_zero & BRK_ABRT)) { -#if defined(CONFIG_SERIAL_DEC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) && \ - !defined(MODULE) - if (info->line == zs_console.index) { - if (!break_pressed) - break_pressed = jiffies; - } else -#endif - info->tty_break = 1; - } - - if (info->zs_channel != info->zs_chan_a) { - - /* Check for DCD transitions */ - if (info->tty && !C_CLOCAL(info->tty) && - ((stat ^ info->read_reg_zero) & DCD) != 0 ) { - if (stat & DCD) { - wake_up_interruptible(&info->open_wait); - } else { - tty_hangup(info->tty); - } - } - - /* Check for CTS transitions */ - if (info->tty && C_CRTSCTS(info->tty)) { - if ((stat & CTS) != 0) { - if (info->tx_stopped) { - info->tx_stopped = 0; - if (!info->tx_active) - transmit_chars(info); - } - } else { - info->tx_stopped = 1; - } - } - - } - - /* Clear status condition... */ - write_zsreg(info->zs_channel, R0, RES_EXT_INT); - info->read_reg_zero = stat; -} - -/* - * This is the serial driver's generic interrupt routine - */ -static irqreturn_t rs_interrupt(int irq, void *dev_id) -{ - struct dec_serial *info = (struct dec_serial *) dev_id; - irqreturn_t status = IRQ_NONE; - unsigned char zs_intreg; - int shift; - - /* NOTE: The read register 3, which holds the irq status, - * does so for both channels on each chip. Although - * the status value itself must be read from the A - * channel and is only valid when read from channel A. - * Yes... broken hardware... - */ -#define CHAN_IRQMASK (CHBRxIP | CHBTxIP | CHBEXT) - - if (info->zs_chan_a == info->zs_channel) - shift = 3; /* Channel A */ - else - shift = 0; /* Channel B */ - - for (;;) { - zs_intreg = read_zsreg(info->zs_chan_a, R3) >> shift; - if ((zs_intreg & CHAN_IRQMASK) == 0) - break; - - status = IRQ_HANDLED; - - if (zs_intreg & CHBRxIP) { - receive_chars(info); - } - if (zs_intreg & CHBTxIP) { - transmit_chars(info); - } - if (zs_intreg & CHBEXT) { - status_handle(info); - } - } - - /* Why do we need this ? */ - write_zsreg(info->zs_channel, 0, RES_H_IUS); - - return status; -} - -#ifdef ZS_DEBUG_REGS -void zs_dump (void) { - int i, j; - for (i = 0; i < zs_channels_found; i++) { - struct dec_zschannel *ch = &zs_channels[i]; - if ((long)ch->control == UNI_IO_BASE+UNI_SCC1A_CTRL) { - for (j = 0; j < 15; j++) { - printk("W%d = 0x%x\t", - j, (int)ch->curregs[j]); - } - for (j = 0; j < 15; j++) { - printk("R%d = 0x%x\t", - j, (int)read_zsreg(ch,j)); - } - printk("\n\n"); - } - } -} -#endif - -/* - * ------------------------------------------------------------------- - * Here ends the serial interrupt routines. - * ------------------------------------------------------------------- - */ - -/* - * ------------------------------------------------------------ - * rs_stop() and rs_start() - * - * This routines are called before setting or resetting tty->stopped. - * ------------------------------------------------------------ - */ -static void rs_stop(struct tty_struct *tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - unsigned long flags; - - if (serial_paranoia_check(info, tty->name, "rs_stop")) - return; - -#if 1 - spin_lock_irqsave(&zs_lock, flags); - if (info->zs_channel->curregs[5] & TxENAB) { - info->zs_channel->curregs[5] &= ~TxENAB; - write_zsreg(info->zs_channel, 5, info->zs_channel->curregs[5]); - } - spin_unlock_irqrestore(&zs_lock, flags); -#endif -} - -static void rs_start(struct tty_struct *tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - unsigned long flags; - - if (serial_paranoia_check(info, tty->name, "rs_start")) - return; - - spin_lock_irqsave(&zs_lock, flags); -#if 1 - if (info->xmit_cnt && info->xmit_buf && !(info->zs_channel->curregs[5] & TxENAB)) { - info->zs_channel->curregs[5] |= TxENAB; - write_zsreg(info->zs_channel, 5, info->zs_channel->curregs[5]); - } -#else - if (info->xmit_cnt && info->xmit_buf && !info->tx_active) { - transmit_chars(info); - } -#endif - spin_unlock_irqrestore(&zs_lock, flags); -} - -/* - * This routine is used to handle the "bottom half" processing for the - * serial driver, known also the "software interrupt" processing. - * This processing is done at the kernel interrupt level, after the - * rs_interrupt() has returned, BUT WITH INTERRUPTS TURNED ON. This - * is where time-consuming activities which can not be done in the - * interrupt driver proper are done; the interrupt driver schedules - * them using rs_sched_event(), and they get done here. - */ - -static void do_softint(unsigned long private_) -{ - struct dec_serial *info = (struct dec_serial *) private_; - struct tty_struct *tty; - - tty = info->tty; - if (!tty) - return; - - if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event)) - tty_wakeup(tty); -} - -static int zs_startup(struct dec_serial * info) -{ - unsigned long flags; - - if (info->flags & ZILOG_INITIALIZED) - return 0; - - if (!info->xmit_buf) { - info->xmit_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL); - if (!info->xmit_buf) - return -ENOMEM; - } - - spin_lock_irqsave(&zs_lock, flags); - -#ifdef SERIAL_DEBUG_OPEN - printk("starting up ttyS%d (irq %d)...", info->line, info->irq); -#endif - - /* - * Clear the receive FIFO. - */ - ZS_CLEARFIFO(info->zs_channel); - info->xmit_fifo_size = 1; - - /* - * Clear the interrupt registers. - */ - write_zsreg(info->zs_channel, R0, ERR_RES); - write_zsreg(info->zs_channel, R0, RES_H_IUS); - - /* - * Set the speed of the serial port - */ - change_speed(info); - - /* - * Turn on RTS and DTR. - */ - zs_rtsdtr(info, RTS | DTR, 1); - - /* - * Finally, enable sequencing and interrupts - */ - info->zs_channel->curregs[R1] &= ~RxINT_MASK; - info->zs_channel->curregs[R1] |= (RxINT_ALL | TxINT_ENAB | - EXT_INT_ENAB); - info->zs_channel->curregs[R3] |= RxENABLE; - info->zs_channel->curregs[R5] |= TxENAB; - info->zs_channel->curregs[R15] |= (DCDIE | CTSIE | TxUIE | BRKIE); - write_zsreg(info->zs_channel, R1, info->zs_channel->curregs[R1]); - write_zsreg(info->zs_channel, R3, info->zs_channel->curregs[R3]); - write_zsreg(info->zs_channel, R5, info->zs_channel->curregs[R5]); - write_zsreg(info->zs_channel, R15, info->zs_channel->curregs[R15]); - - /* - * And clear the interrupt registers again for luck. - */ - write_zsreg(info->zs_channel, R0, ERR_RES); - write_zsreg(info->zs_channel, R0, RES_H_IUS); - - /* Save the current value of RR0 */ - info->read_reg_zero = read_zsreg(info->zs_channel, R0); - - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); - info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; - - info->flags |= ZILOG_INITIALIZED; - spin_unlock_irqrestore(&zs_lock, flags); - return 0; -} - -/* - * This routine will shutdown a serial port; interrupts are disabled, and - * DTR is dropped if the hangup on close termio flag is on. - */ -static void shutdown(struct dec_serial * info) -{ - unsigned long flags; - - if (!(info->flags & ZILOG_INITIALIZED)) - return; - -#ifdef SERIAL_DEBUG_OPEN - printk("Shutting down serial port %d (irq %d)....", info->line, - info->irq); -#endif - - spin_lock_irqsave(&zs_lock, flags); - - if (info->xmit_buf) { - free_page((unsigned long) info->xmit_buf); - info->xmit_buf = 0; - } - - info->zs_channel->curregs[1] = 0; - write_zsreg(info->zs_channel, 1, info->zs_channel->curregs[1]); /* no interrupts */ - - info->zs_channel->curregs[3] &= ~RxENABLE; - write_zsreg(info->zs_channel, 3, info->zs_channel->curregs[3]); - - info->zs_channel->curregs[5] &= ~TxENAB; - write_zsreg(info->zs_channel, 5, info->zs_channel->curregs[5]); - if (!info->tty || C_HUPCL(info->tty)) { - zs_rtsdtr(info, RTS | DTR, 0); - } - - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); - - info->flags &= ~ZILOG_INITIALIZED; - spin_unlock_irqrestore(&zs_lock, flags); -} - -/* - * This routine is called to set the UART divisor registers to match - * the specified baud rate for a serial port. - */ -static void change_speed(struct dec_serial *info) -{ - unsigned cflag; - int i; - int brg, bits; - unsigned long flags; - - if (!info->hook) { - if (!info->tty || !info->tty->termios) - return; - cflag = info->tty->termios->c_cflag; - if (!info->port) - return; - } else { - cflag = info->hook->cflags; - } - - i = cflag & CBAUD; - if (i & CBAUDEX) { - i &= ~CBAUDEX; - if (i < 1 || i > 2) { - if (!info->hook) - info->tty->termios->c_cflag &= ~CBAUDEX; - else - info->hook->cflags &= ~CBAUDEX; - } else - i += 15; - } - - spin_lock_irqsave(&zs_lock, flags); - info->zs_baud = baud_table[i]; - if (info->zs_baud) { - brg = BPS_TO_BRG(info->zs_baud, zs_parms->clock/info->clk_divisor); - info->zs_channel->curregs[12] = (brg & 255); - info->zs_channel->curregs[13] = ((brg >> 8) & 255); - zs_rtsdtr(info, DTR, 1); - } else { - zs_rtsdtr(info, RTS | DTR, 0); - return; - } - - /* byte size and parity */ - info->zs_channel->curregs[3] &= ~RxNBITS_MASK; - info->zs_channel->curregs[5] &= ~TxNBITS_MASK; - switch (cflag & CSIZE) { - case CS5: - bits = 7; - info->zs_channel->curregs[3] |= Rx5; - info->zs_channel->curregs[5] |= Tx5; - break; - case CS6: - bits = 8; - info->zs_channel->curregs[3] |= Rx6; - info->zs_channel->curregs[5] |= Tx6; - break; - case CS7: - bits = 9; - info->zs_channel->curregs[3] |= Rx7; - info->zs_channel->curregs[5] |= Tx7; - break; - case CS8: - default: /* defaults to 8 bits */ - bits = 10; - info->zs_channel->curregs[3] |= Rx8; - info->zs_channel->curregs[5] |= Tx8; - break; - } - - info->timeout = ((info->xmit_fifo_size*HZ*bits) / info->zs_baud); - info->timeout += HZ/50; /* Add .02 seconds of slop */ - - info->zs_channel->curregs[4] &= ~(SB_MASK | PAR_ENA | PAR_EVEN); - if (cflag & CSTOPB) { - info->zs_channel->curregs[4] |= SB2; - } else { - info->zs_channel->curregs[4] |= SB1; - } - if (cflag & PARENB) { - info->zs_channel->curregs[4] |= PAR_ENA; - } - if (!(cflag & PARODD)) { - info->zs_channel->curregs[4] |= PAR_EVEN; - } - - if (!(cflag & CLOCAL)) { - if (!(info->zs_channel->curregs[15] & DCDIE)) - info->read_reg_zero = read_zsreg(info->zs_channel, 0); - info->zs_channel->curregs[15] |= DCDIE; - } else - info->zs_channel->curregs[15] &= ~DCDIE; - if (cflag & CRTSCTS) { - info->zs_channel->curregs[15] |= CTSIE; - if ((read_zsreg(info->zs_channel, 0) & CTS) == 0) - info->tx_stopped = 1; - } else { - info->zs_channel->curregs[15] &= ~CTSIE; - info->tx_stopped = 0; - } - - /* Load up the new values */ - load_zsregs(info->zs_channel, info->zs_channel->curregs); - - spin_unlock_irqrestore(&zs_lock, flags); -} - -static void rs_flush_chars(struct tty_struct *tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - unsigned long flags; - - if (serial_paranoia_check(info, tty->name, "rs_flush_chars")) - return; - - if (info->xmit_cnt <= 0 || tty->stopped || info->tx_stopped || - !info->xmit_buf) - return; - - /* Enable transmitter */ - spin_lock_irqsave(&zs_lock, flags); - transmit_chars(info); - spin_unlock_irqrestore(&zs_lock, flags); -} - -static int rs_write(struct tty_struct * tty, - const unsigned char *buf, int count) -{ - int c, total = 0; - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - unsigned long flags; - - if (serial_paranoia_check(info, tty->name, "rs_write")) - return 0; - - if (!tty || !info->xmit_buf) - return 0; - - while (1) { - spin_lock_irqsave(&zs_lock, flags); - c = min(count, min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1, - SERIAL_XMIT_SIZE - info->xmit_head)); - if (c <= 0) - break; - - memcpy(info->xmit_buf + info->xmit_head, buf, c); - info->xmit_head = (info->xmit_head + c) & (SERIAL_XMIT_SIZE-1); - info->xmit_cnt += c; - spin_unlock_irqrestore(&zs_lock, flags); - buf += c; - count -= c; - total += c; - } - - if (info->xmit_cnt && !tty->stopped && !info->tx_stopped - && !info->tx_active) - transmit_chars(info); - spin_unlock_irqrestore(&zs_lock, flags); - return total; -} - -static int rs_write_room(struct tty_struct *tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - int ret; - - if (serial_paranoia_check(info, tty->name, "rs_write_room")) - return 0; - ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1; - if (ret < 0) - ret = 0; - return ret; -} - -static int rs_chars_in_buffer(struct tty_struct *tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - - if (serial_paranoia_check(info, tty->name, "rs_chars_in_buffer")) - return 0; - return info->xmit_cnt; -} - -static void rs_flush_buffer(struct tty_struct *tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - - if (serial_paranoia_check(info, tty->name, "rs_flush_buffer")) - return; - spin_lock_irq(&zs_lock); - info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; - spin_unlock_irq(&zs_lock); - tty_wakeup(tty); -} - -/* - * ------------------------------------------------------------ - * rs_throttle() - * - * This routine is called by the upper-layer tty layer to signal that - * incoming characters should be throttled. - * ------------------------------------------------------------ - */ -static void rs_throttle(struct tty_struct * tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - unsigned long flags; - -#ifdef SERIAL_DEBUG_THROTTLE - char buf[64]; - - printk("throttle %s: %d....\n", _tty_name(tty, buf), - tty->ldisc.chars_in_buffer(tty)); -#endif - - if (serial_paranoia_check(info, tty->name, "rs_throttle")) - return; - - if (I_IXOFF(tty)) { - spin_lock_irqsave(&zs_lock, flags); - info->x_char = STOP_CHAR(tty); - if (!info->tx_active) - transmit_chars(info); - spin_unlock_irqrestore(&zs_lock, flags); - } - - if (C_CRTSCTS(tty)) { - zs_rtsdtr(info, RTS, 0); - } -} - -static void rs_unthrottle(struct tty_struct * tty) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - unsigned long flags; - -#ifdef SERIAL_DEBUG_THROTTLE - char buf[64]; - - printk("unthrottle %s: %d....\n", _tty_name(tty, buf), - tty->ldisc.chars_in_buffer(tty)); -#endif - - if (serial_paranoia_check(info, tty->name, "rs_unthrottle")) - return; - - if (I_IXOFF(tty)) { - spin_lock_irqsave(&zs_lock, flags); - if (info->x_char) - info->x_char = 0; - else { - info->x_char = START_CHAR(tty); - if (!info->tx_active) - transmit_chars(info); - } - spin_unlock_irqrestore(&zs_lock, flags); - } - - if (C_CRTSCTS(tty)) { - zs_rtsdtr(info, RTS, 1); - } -} - -/* - * ------------------------------------------------------------ - * rs_ioctl() and friends - * ------------------------------------------------------------ - */ - -static int get_serial_info(struct dec_serial * info, - struct serial_struct * retinfo) -{ - struct serial_struct tmp; - - if (!retinfo) - return -EFAULT; - memset(&tmp, 0, sizeof(tmp)); - tmp.type = info->type; - tmp.line = info->line; - tmp.port = info->port; - tmp.irq = info->irq; - tmp.flags = info->flags; - tmp.baud_base = info->baud_base; - tmp.close_delay = info->close_delay; - tmp.closing_wait = info->closing_wait; - tmp.custom_divisor = info->custom_divisor; - return copy_to_user(retinfo,&tmp,sizeof(*retinfo)) ? -EFAULT : 0; -} - -static int set_serial_info(struct dec_serial * info, - struct serial_struct * new_info) -{ - struct serial_struct new_serial; - struct dec_serial old_info; - int retval = 0; - - if (!new_info) - return -EFAULT; - copy_from_user(&new_serial,new_info,sizeof(new_serial)); - old_info = *info; - - if (!capable(CAP_SYS_ADMIN)) { - if ((new_serial.baud_base != info->baud_base) || - (new_serial.type != info->type) || - (new_serial.close_delay != info->close_delay) || - ((new_serial.flags & ~ZILOG_USR_MASK) != - (info->flags & ~ZILOG_USR_MASK))) - return -EPERM; - info->flags = ((info->flags & ~ZILOG_USR_MASK) | - (new_serial.flags & ZILOG_USR_MASK)); - info->custom_divisor = new_serial.custom_divisor; - goto check_and_exit; - } - - if (info->count > 1) - return -EBUSY; - - /* - * OK, past this point, all the error checking has been done. - * At this point, we start making changes..... - */ - - info->baud_base = new_serial.baud_base; - info->flags = ((info->flags & ~ZILOG_FLAGS) | - (new_serial.flags & ZILOG_FLAGS)); - info->type = new_serial.type; - info->close_delay = new_serial.close_delay; - info->closing_wait = new_serial.closing_wait; - -check_and_exit: - retval = zs_startup(info); - return retval; -} - -/* - * get_lsr_info - get line status register info - * - * Purpose: Let user call ioctl() to get info when the UART physically - * is emptied. On bus types like RS485, the transmitter must - * release the bus after transmitting. This must be done when - * the transmit shift register is empty, not be done when the - * transmit holding register is empty. This functionality - * allows an RS485 driver to be written in user space. - */ -static int get_lsr_info(struct dec_serial * info, unsigned int *value) -{ - unsigned char status; - - spin_lock(&zs_lock); - status = read_zsreg(info->zs_channel, 0); - spin_unlock_irq(&zs_lock); - put_user(status,value); - return 0; -} - -static int rs_tiocmget(struct tty_struct *tty, struct file *file) -{ - struct dec_serial * info = (struct dec_serial *)tty->driver_data; - unsigned char control, status_a, status_b; - unsigned int result; - - if (info->hook) - return -ENODEV; - - if (serial_paranoia_check(info, tty->name, __FUNCTION__)) - return -ENODEV; - - if (tty->flags & (1 << TTY_IO_ERROR)) - return -EIO; - - if (info->zs_channel == info->zs_chan_a) - result = 0; - else { - spin_lock(&zs_lock); - control = info->zs_chan_a->curregs[5]; - status_a = read_zsreg(info->zs_chan_a, 0); - status_b = read_zsreg(info->zs_channel, 0); - spin_unlock_irq(&zs_lock); - result = ((control & RTS) ? TIOCM_RTS: 0) - | ((control & DTR) ? TIOCM_DTR: 0) - | ((status_b & DCD) ? TIOCM_CAR: 0) - | ((status_a & DCD) ? TIOCM_RNG: 0) - | ((status_a & SYNC_HUNT) ? TIOCM_DSR: 0) - | ((status_b & CTS) ? TIOCM_CTS: 0); - } - return result; -} - -static int rs_tiocmset(struct tty_struct *tty, struct file *file, - unsigned int set, unsigned int clear) -{ - struct dec_serial * info = (struct dec_serial *)tty->driver_data; - - if (info->hook) - return -ENODEV; - - if (serial_paranoia_check(info, tty->name, __FUNCTION__)) - return -ENODEV; - - if (tty->flags & (1 << TTY_IO_ERROR)) - return -EIO; - - if (info->zs_channel == info->zs_chan_a) - return 0; - - spin_lock(&zs_lock); - if (set & TIOCM_RTS) - info->zs_chan_a->curregs[5] |= RTS; - if (set & TIOCM_DTR) - info->zs_chan_a->curregs[5] |= DTR; - if (clear & TIOCM_RTS) - info->zs_chan_a->curregs[5] &= ~RTS; - if (clear & TIOCM_DTR) - info->zs_chan_a->curregs[5] &= ~DTR; - write_zsreg(info->zs_chan_a, 5, info->zs_chan_a->curregs[5]); - spin_unlock_irq(&zs_lock); - return 0; -} - -/* - * rs_break - turn transmit break condition on/off - */ -static void rs_break(struct tty_struct *tty, int break_state) -{ - struct dec_serial *info = (struct dec_serial *) tty->driver_data; - unsigned long flags; - - if (serial_paranoia_check(info, tty->name, "rs_break")) - return; - if (!info->port) - return; - - spin_lock_irqsave(&zs_lock, flags); - if (break_state == -1) - info->zs_channel->curregs[5] |= SND_BRK; - else - info->zs_channel->curregs[5] &= ~SND_BRK; - write_zsreg(info->zs_channel, 5, info->zs_channel->curregs[5]); - spin_unlock_irqrestore(&zs_lock, flags); -} - -static int rs_ioctl(struct tty_struct *tty, struct file * file, - unsigned int cmd, unsigned long arg) -{ - struct dec_serial * info = (struct dec_serial *)tty->driver_data; - - if (info->hook) - return -ENODEV; - - if (serial_paranoia_check(info, tty->name, "rs_ioctl")) - return -ENODEV; - - if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && - (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD) && - (cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT)) { - if (tty->flags & (1 << TTY_IO_ERROR)) - return -EIO; - } - - switch (cmd) { - case TIOCGSERIAL: - if (!access_ok(VERIFY_WRITE, (void *)arg, - sizeof(struct serial_struct))) - return -EFAULT; - return get_serial_info(info, (struct serial_struct *)arg); - - case TIOCSSERIAL: - return set_serial_info(info, (struct serial_struct *)arg); - - case TIOCSERGETLSR: /* Get line status register */ - if (!access_ok(VERIFY_WRITE, (void *)arg, - sizeof(unsigned int))) - return -EFAULT; - return get_lsr_info(info, (unsigned int *)arg); - - case TIOCSERGSTRUCT: - if (!access_ok(VERIFY_WRITE, (void *)arg, - sizeof(struct dec_serial))) - return -EFAULT; - copy_from_user((struct dec_serial *)arg, info, - sizeof(struct dec_serial)); - return 0; - - default: - return -ENOIOCTLCMD; - } - return 0; -} - -static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios) -{ - struct dec_serial *info = (struct dec_serial *)tty->driver_data; - int was_stopped; - - if (tty->termios->c_cflag == old_termios->c_cflag) - return; - was_stopped = info->tx_stopped; - - change_speed(info); - - if (was_stopped && !info->tx_stopped) - rs_start(tty); -} - -/* - * ------------------------------------------------------------ - * rs_close() - * - * This routine is called when the serial port gets closed. - * Wait for the last remaining data to be sent. - * ------------------------------------------------------------ - */ -static void rs_close(struct tty_struct *tty, struct file * filp) -{ - struct dec_serial * info = (struct dec_serial *)tty->driver_data; - unsigned long flags; - - if (!info || serial_paranoia_check(info, tty->name, "rs_close")) - return; - - spin_lock_irqsave(&zs_lock, flags); - - if (tty_hung_up_p(filp)) { - spin_unlock_irqrestore(&zs_lock, flags); - return; - } - -#ifdef SERIAL_DEBUG_OPEN - printk("rs_close ttyS%d, count = %d\n", info->line, info->count); -#endif - if ((tty->count == 1) && (info->count != 1)) { - /* - * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. Info->count should always - * be one in these conditions. If it's greater than - * one, we've got real problems, since it means the - * serial port won't be shutdown. - */ - printk("rs_close: bad serial port count; tty->count is 1, " - "info->count is %d\n", info->count); - info->count = 1; - } - if (--info->count < 0) { - printk("rs_close: bad serial port count for ttyS%d: %d\n", - info->line, info->count); - info->count = 0; - } - if (info->count) { - spin_unlock_irqrestore(&zs_lock, flags); - return; - } - info->flags |= ZILOG_CLOSING; - /* - * Now we wait for the transmit buffer to clear; and we notify - * the line discipline to only process XON/XOFF characters. - */ - tty->closing = 1; - if (info->closing_wait != ZILOG_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, info->closing_wait); - /* - * At this point we stop accepting input. To do this, we - * disable the receiver and receive interrupts. - */ - info->zs_channel->curregs[3] &= ~RxENABLE; - write_zsreg(info->zs_channel, 3, info->zs_channel->curregs[3]); - info->zs_channel->curregs[1] = 0; /* disable any rx ints */ - write_zsreg(info->zs_channel, 1, info->zs_channel->curregs[1]); - ZS_CLEARFIFO(info->zs_channel); - if (info->flags & ZILOG_INITIALIZED) { - /* - * Before we drop DTR, make sure the SCC transmitter - * has completely drained. - */ - rs_wait_until_sent(tty, info->timeout); - } - - shutdown(info); - if (tty->driver->flush_buffer) - tty->driver->flush_buffer(tty); - tty_ldisc_flush(tty); - tty->closing = 0; - info->event = 0; - info->tty = 0; - if (info->blocked_open) { - if (info->close_delay) { - msleep_interruptible(jiffies_to_msecs(info->close_delay)); - } - wake_up_interruptible(&info->open_wait); - } - info->flags &= ~(ZILOG_NORMAL_ACTIVE|ZILOG_CLOSING); - wake_up_interruptible(&info->close_wait); - spin_unlock_irqrestore(&zs_lock, flags); -} - -/* - * rs_wait_until_sent() --- wait until the transmitter is empty - */ -static void rs_wait_until_sent(struct tty_struct *tty, int timeout) -{ - struct dec_serial *info = (struct dec_serial *) tty->driver_data; - unsigned long orig_jiffies; - int char_time; - - if (serial_paranoia_check(info, tty->name, "rs_wait_until_sent")) - return; - - orig_jiffies = jiffies; - /* - * Set the check interval to be 1/5 of the estimated time to - * send a single character, and make it at least 1. The check - * interval should also be less than the timeout. - */ - char_time = (info->timeout - HZ/50) / info->xmit_fifo_size; - char_time = char_time / 5; - if (char_time == 0) - char_time = 1; - if (timeout) - char_time = min(char_time, timeout); - while ((read_zsreg(info->zs_channel, 1) & Tx_BUF_EMP) == 0) { - msleep_interruptible(jiffies_to_msecs(char_time)); - if (signal_pending(current)) - break; - if (timeout && time_after(jiffies, orig_jiffies + timeout)) - break; - } - current->state = TASK_RUNNING; -} - -/* - * rs_hangup() --- called by tty_hangup() when a hangup is signaled. - */ -static void rs_hangup(struct tty_struct *tty) -{ - struct dec_serial * info = (struct dec_serial *)tty->driver_data; - - if (serial_paranoia_check(info, tty->name, "rs_hangup")) - return; - - rs_flush_buffer(tty); - shutdown(info); - info->event = 0; - info->count = 0; - info->flags &= ~ZILOG_NORMAL_ACTIVE; - info->tty = 0; - wake_up_interruptible(&info->open_wait); -} - -/* - * ------------------------------------------------------------ - * rs_open() and friends - * ------------------------------------------------------------ - */ -static int block_til_ready(struct tty_struct *tty, struct file * filp, - struct dec_serial *info) -{ - DECLARE_WAITQUEUE(wait, current); - int retval; - int do_clocal = 0; - - /* - * If the device is in the middle of being closed, then block - * until it's done, and then try again. - */ - if (info->flags & ZILOG_CLOSING) { - interruptible_sleep_on(&info->close_wait); -#ifdef SERIAL_DO_RESTART - return ((info->flags & ZILOG_HUP_NOTIFY) ? - -EAGAIN : -ERESTARTSYS); -#else - return -EAGAIN; -#endif - } - - /* - * If non-blocking mode is set, or the port is not enabled, - * then make the check up front and then exit. - */ - if ((filp->f_flags & O_NONBLOCK) || - (tty->flags & (1 << TTY_IO_ERROR))) { - info->flags |= ZILOG_NORMAL_ACTIVE; - return 0; - } - - if (tty->termios->c_cflag & CLOCAL) - do_clocal = 1; - - /* - * Block waiting for the carrier detect and the line to become - * free (i.e., not in use by the callout). While we are in - * this loop, info->count is dropped by one, so that - * rs_close() knows when to free things. We restore it upon - * exit, either normal or abnormal. - */ - retval = 0; - add_wait_queue(&info->open_wait, &wait); -#ifdef SERIAL_DEBUG_OPEN - printk("block_til_ready before block: ttyS%d, count = %d\n", - info->line, info->count); -#endif - spin_lock(&zs_lock); - if (!tty_hung_up_p(filp)) - info->count--; - spin_unlock_irq(&zs_lock); - info->blocked_open++; - while (1) { - spin_lock(&zs_lock); - if (tty->termios->c_cflag & CBAUD) - zs_rtsdtr(info, RTS | DTR, 1); - spin_unlock_irq(&zs_lock); - set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || - !(info->flags & ZILOG_INITIALIZED)) { -#ifdef SERIAL_DO_RESTART - if (info->flags & ZILOG_HUP_NOTIFY) - retval = -EAGAIN; - else - retval = -ERESTARTSYS; -#else - retval = -EAGAIN; -#endif - break; - } - if (!(info->flags & ZILOG_CLOSING) && - (do_clocal || (read_zsreg(info->zs_channel, 0) & DCD))) - break; - if (signal_pending(current)) { - retval = -ERESTARTSYS; - break; - } -#ifdef SERIAL_DEBUG_OPEN - printk("block_til_ready blocking: ttyS%d, count = %d\n", - info->line, info->count); -#endif - schedule(); - } - current->state = TASK_RUNNING; - remove_wait_queue(&info->open_wait, &wait); - if (!tty_hung_up_p(filp)) - info->count++; - info->blocked_open--; -#ifdef SERIAL_DEBUG_OPEN - printk("block_til_ready after blocking: ttyS%d, count = %d\n", - info->line, info->count); -#endif - if (retval) - return retval; - info->flags |= ZILOG_NORMAL_ACTIVE; - return 0; -} - -/* - * This routine is called whenever a serial port is opened. It - * enables interrupts for a serial port, linking in its ZILOG structure into - * the IRQ chain. It also performs the serial-specific - * initialization for the tty structure. - */ -static int rs_open(struct tty_struct *tty, struct file * filp) -{ - struct dec_serial *info; - int retval, line; - - line = tty->index; - if ((line < 0) || (line >= zs_channels_found)) - return -ENODEV; - info = zs_soft + line; - - if (info->hook) - return -ENODEV; - - if (serial_paranoia_check(info, tty->name, "rs_open")) - return -ENODEV; -#ifdef SERIAL_DEBUG_OPEN - printk("rs_open %s, count = %d\n", tty->name, info->count); -#endif - - info->count++; - tty->driver_data = info; - info->tty = tty; - - /* - * If the port is the middle of closing, bail out now - */ - if (tty_hung_up_p(filp) || - (info->flags & ZILOG_CLOSING)) { - if (info->flags & ZILOG_CLOSING) - interruptible_sleep_on(&info->close_wait); -#ifdef SERIAL_DO_RESTART - return ((info->flags & ZILOG_HUP_NOTIFY) ? - -EAGAIN : -ERESTARTSYS); -#else - return -EAGAIN; -#endif - } - - /* - * Start up serial port - */ - retval = zs_startup(info); - if (retval) - return retval; - - retval = block_til_ready(tty, filp, info); - if (retval) { -#ifdef SERIAL_DEBUG_OPEN - printk("rs_open returning after block_til_ready with %d\n", - retval); -#endif - return retval; - } - -#ifdef CONFIG_SERIAL_DEC_CONSOLE - if (zs_console.cflag && zs_console.index == line) { - tty->termios->c_cflag = zs_console.cflag; - zs_console.cflag = 0; - change_speed(info); - } -#endif - -#ifdef SERIAL_DEBUG_OPEN - printk("rs_open %s successful...", tty->name); -#endif -/* tty->low_latency = 1; */ - return 0; -} - -/* Finally, routines used to initialize the serial driver. */ - -static void __init show_serial_version(void) -{ - printk("DECstation Z8530 serial driver version 0.09\n"); -} - -/* Initialize Z8530s zs_channels - */ - -static void __init probe_sccs(void) -{ - struct dec_serial **pp; - int i, n, n_chips = 0, n_channels, chip, channel; - unsigned long flags; - - /* - * did we get here by accident? - */ - if(!BUS_PRESENT) { - printk("Not on JUNKIO machine, skipping probe_sccs\n"); - return; - } - - switch(mips_machtype) { -#ifdef CONFIG_MACH_DECSTATION - case MACH_DS5000_2X0: - case MACH_DS5900: - n_chips = 2; - zs_parms = &ds_parms; - zs_parms->irq0 = dec_interrupt[DEC_IRQ_SCC0]; - zs_parms->irq1 = dec_interrupt[DEC_IRQ_SCC1]; - break; - case MACH_DS5000_1XX: - n_chips = 2; - zs_parms = &ds_parms; - zs_parms->irq0 = dec_interrupt[DEC_IRQ_SCC0]; - zs_parms->irq1 = dec_interrupt[DEC_IRQ_SCC1]; - break; - case MACH_DS5000_XX: - n_chips = 1; - zs_parms = &ds_parms; - zs_parms->irq0 = dec_interrupt[DEC_IRQ_SCC0]; - break; -#endif - default: - panic("zs: unsupported bus"); - } - if (!zs_parms) - panic("zs: uninitialized parms"); - - pp = &zs_chain; - - n_channels = 0; - - for (chip = 0; chip < n_chips; chip++) { - for (channel = 0; channel <= 1; channel++) { - /* - * The sccs reside on the high byte of the 16 bit IOBUS - */ - zs_channels[n_channels].control = - (volatile void *)CKSEG1ADDR(dec_kn_slot_base + - (0 == chip ? zs_parms->scc0 : zs_parms->scc1) + - (0 == channel ? zs_parms->channel_a_offset : - zs_parms->channel_b_offset)); - zs_channels[n_channels].data = - zs_channels[n_channels].control + 4; - -#ifndef CONFIG_SERIAL_DEC_CONSOLE - /* - * We're called early and memory managment isn't up, yet. - * Thus request_region would fail. - */ - if (!request_region((unsigned long) - zs_channels[n_channels].control, - ZS_CHAN_IO_SIZE, "SCC")) - panic("SCC I/O region is not free"); -#endif - zs_soft[n_channels].zs_channel = &zs_channels[n_channels]; - /* HACK alert! */ - if (!(chip & 1)) - zs_soft[n_channels].irq = zs_parms->irq0; - else - zs_soft[n_channels].irq = zs_parms->irq1; - - /* - * Identification of channel A. Location of channel A - * inside chip depends on mapping of internal address - * the chip decodes channels by. - * CHANNEL_A_NR returns either 0 (in case of - * DECstations) or 1 (in case of Baget). - */ - if (CHANNEL_A_NR == channel) - zs_soft[n_channels].zs_chan_a = - &zs_channels[n_channels+1-2*CHANNEL_A_NR]; - else - zs_soft[n_channels].zs_chan_a = - &zs_channels[n_channels]; - - *pp = &zs_soft[n_channels]; - pp = &zs_soft[n_channels].zs_next; - n_channels++; - } - } - - *pp = 0; - zs_channels_found = n_channels; - - for (n = 0; n < zs_channels_found; n++) { - for (i = 0; i < 16; i++) { - zs_soft[n].zs_channel->curregs[i] = zs_init_regs[i]; - } - } - - spin_lock_irqsave(&zs_lock, flags); - for (n = 0; n < zs_channels_found; n++) { - if (n % 2 == 0) { - write_zsreg(zs_soft[n].zs_chan_a, R9, FHWRES); - udelay(10); - write_zsreg(zs_soft[n].zs_chan_a, R9, 0); - } - load_zsregs(zs_soft[n].zs_channel, - zs_soft[n].zs_channel->curregs); - } - spin_unlock_irqrestore(&zs_lock, flags); -} - -static const struct tty_operations serial_ops = { - .open = rs_open, - .close = rs_close, - .write = rs_write, - .flush_chars = rs_flush_chars, - .write_room = rs_write_room, - .chars_in_buffer = rs_chars_in_buffer, - .flush_buffer = rs_flush_buffer, - .ioctl = rs_ioctl, - .throttle = rs_throttle, - .unthrottle = rs_unthrottle, - .set_termios = rs_set_termios, - .stop = rs_stop, - .start = rs_start, - .hangup = rs_hangup, - .break_ctl = rs_break, - .wait_until_sent = rs_wait_until_sent, - .tiocmget = rs_tiocmget, - .tiocmset = rs_tiocmset, -}; - -/* zs_init inits the driver */ -int __init zs_init(void) -{ - int channel, i; - struct dec_serial *info; - - if(!BUS_PRESENT) - return -ENODEV; - - /* Find out how many Z8530 SCCs we have */ - if (zs_chain == 0) - probe_sccs(); - serial_driver = alloc_tty_driver(zs_channels_found); - if (!serial_driver) - return -ENOMEM; - - show_serial_version(); - - /* Initialize the tty_driver structure */ - /* Not all of this is exactly right for us. */ - - serial_driver->owner = THIS_MODULE; - serial_driver->name = "ttyS"; - serial_driver->major = TTY_MAJOR; - serial_driver->minor_start = 64; - serial_driver->type = TTY_DRIVER_TYPE_SERIAL; - serial_driver->subtype = SERIAL_TYPE_NORMAL; - serial_driver->init_termios = tty_std_termios; - serial_driver->init_termios.c_cflag = - B9600 | CS8 | CREAD | HUPCL | CLOCAL; - serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; - tty_set_operations(serial_driver, &serial_ops); - - if (tty_register_driver(serial_driver)) - panic("Couldn't register serial driver"); - - for (info = zs_chain, i = 0; info; info = info->zs_next, i++) { - - /* Needed before interrupts are enabled. */ - info->tty = 0; - info->x_char = 0; - - if (info->hook && info->hook->init_info) { - (*info->hook->init_info)(info); - continue; - } - - info->magic = SERIAL_MAGIC; - info->port = (int) info->zs_channel->control; - info->line = i; - info->custom_divisor = 16; - info->close_delay = 50; - info->closing_wait = 3000; - info->event = 0; - info->count = 0; - info->blocked_open = 0; - tasklet_init(&info->tlet, do_softint, (unsigned long)info); - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); - printk("ttyS%02d at 0x%08x (irq = %d) is a Z85C30 SCC\n", - info->line, info->port, info->irq); - tty_register_device(serial_driver, info->line, NULL); - - } - - for (channel = 0; channel < zs_channels_found; ++channel) { - zs_soft[channel].clk_divisor = 16; - zs_soft[channel].zs_baud = get_zsbaud(&zs_soft[channel]); - - if (request_irq(zs_soft[channel].irq, rs_interrupt, IRQF_SHARED, - "scc", &zs_soft[channel])) - printk(KERN_ERR "decserial: can't get irq %d\n", - zs_soft[channel].irq); - - if (zs_soft[channel].hook) { - zs_startup(&zs_soft[channel]); - if (zs_soft[channel].hook->init_channel) - (*zs_soft[channel].hook->init_channel) - (&zs_soft[channel]); - } - } - - return 0; -} - -/* - * polling I/O routines - */ -static int zs_poll_tx_char(void *handle, unsigned char ch) -{ - struct dec_serial *info = handle; - struct dec_zschannel *chan = info->zs_channel; - int ret; - - if(chan) { - int loops = 10000; - - while (loops && !(read_zsreg(chan, 0) & Tx_BUF_EMP)) - loops--; - - if (loops) { - write_zsdata(chan, ch); - ret = 0; - } else - ret = -EAGAIN; - - return ret; - } else - return -ENODEV; -} - -static int zs_poll_rx_char(void *handle) -{ - struct dec_serial *info = handle; - struct dec_zschannel *chan = info->zs_channel; - int ret; - - if(chan) { - int loops = 10000; - - while (loops && !(read_zsreg(chan, 0) & Rx_CH_AV)) - loops--; - - if (loops) - ret = read_zsdata(chan); - else - ret = -EAGAIN; - - return ret; - } else - return -ENODEV; -} - -int register_zs_hook(unsigned int channel, struct dec_serial_hook *hook) -{ - struct dec_serial *info = &zs_soft[channel]; - - if (info->hook) { - printk("%s: line %d has already a hook registered\n", - __FUNCTION__, channel); - - return 0; - } else { - hook->poll_rx_char = zs_poll_rx_char; - hook->poll_tx_char = zs_poll_tx_char; - info->hook = hook; - - return 1; - } -} - -int unregister_zs_hook(unsigned int channel) -{ - struct dec_serial *info = &zs_soft[channel]; - - if (info->hook) { - info->hook = NULL; - return 1; - } else { - printk("%s: trying to unregister hook on line %d," - " but none is registered\n", __FUNCTION__, channel); - return 0; - } -} - -/* - * ------------------------------------------------------------ - * Serial console driver - * ------------------------------------------------------------ - */ -#ifdef CONFIG_SERIAL_DEC_CONSOLE - - -/* - * Print a string to the serial port trying not to disturb - * any possible real use of the port... - */ -static void serial_console_write(struct console *co, const char *s, - unsigned count) -{ - struct dec_serial *info; - int i; - - info = zs_soft + co->index; - - for (i = 0; i < count; i++, s++) { - if(*s == '\n') - zs_poll_tx_char(info, '\r'); - zs_poll_tx_char(info, *s); - } -} - -static struct tty_driver *serial_console_device(struct console *c, int *index) -{ - *index = c->index; - return serial_driver; -} - -/* - * Setup initial baud/bits/parity. We do two things here: - * - construct a cflag setting for the first rs_open() - * - initialize the serial port - * Return non-zero if we didn't find a serial port. - */ -static int __init serial_console_setup(struct console *co, char *options) -{ - struct dec_serial *info; - int baud = 9600; - int bits = 8; - int parity = 'n'; - int cflag = CREAD | HUPCL | CLOCAL; - int clk_divisor = 16; - int brg; - char *s; - unsigned long flags; - - if(!BUS_PRESENT) - return -ENODEV; - - info = zs_soft + co->index; - - if (zs_chain == 0) - probe_sccs(); - - info->is_cons = 1; - - if (options) { - baud = simple_strtoul(options, NULL, 10); - s = options; - while(*s >= '0' && *s <= '9') - s++; - if (*s) - parity = *s++; - if (*s) - bits = *s - '0'; - } - - /* - * Now construct a cflag setting. - */ - switch(baud) { - case 1200: - cflag |= B1200; - break; - case 2400: - cflag |= B2400; - break; - case 4800: - cflag |= B4800; - break; - case 19200: - cflag |= B19200; - break; - case 38400: - cflag |= B38400; - break; - case 57600: - cflag |= B57600; - break; - case 115200: - cflag |= B115200; - break; - case 9600: - default: - cflag |= B9600; - /* - * Set this to a sane value to prevent a divide error. - */ - baud = 9600; - break; - } - switch(bits) { - case 7: - cflag |= CS7; - break; - default: - case 8: - cflag |= CS8; - break; - } - switch(parity) { - case 'o': case 'O': - cflag |= PARODD; - break; - case 'e': case 'E': - cflag |= PARENB; - break; - } - co->cflag = cflag; - - spin_lock_irqsave(&zs_lock, flags); - - /* - * Set up the baud rate generator. - */ - brg = BPS_TO_BRG(baud, zs_parms->clock / clk_divisor); - info->zs_channel->curregs[R12] = (brg & 255); - info->zs_channel->curregs[R13] = ((brg >> 8) & 255); - - /* - * Set byte size and parity. - */ - if (bits == 7) { - info->zs_channel->curregs[R3] |= Rx7; - info->zs_channel->curregs[R5] |= Tx7; - } else { - info->zs_channel->curregs[R3] |= Rx8; - info->zs_channel->curregs[R5] |= Tx8; - } - if (cflag & PARENB) { - info->zs_channel->curregs[R4] |= PAR_ENA; - } - if (!(cflag & PARODD)) { - info->zs_channel->curregs[R4] |= PAR_EVEN; - } - info->zs_channel->curregs[R4] |= SB1; - - /* - * Turn on RTS and DTR. - */ - zs_rtsdtr(info, RTS | DTR, 1); - - /* - * Finally, enable sequencing. - */ - info->zs_channel->curregs[R3] |= RxENABLE; - info->zs_channel->curregs[R5] |= TxENAB; - - /* - * Clear the interrupt registers. - */ - write_zsreg(info->zs_channel, R0, ERR_RES); - write_zsreg(info->zs_channel, R0, RES_H_IUS); - - /* - * Load up the new values. - */ - load_zsregs(info->zs_channel, info->zs_channel->curregs); - - /* Save the current value of RR0 */ - info->read_reg_zero = read_zsreg(info->zs_channel, R0); - - zs_soft[co->index].clk_divisor = clk_divisor; - zs_soft[co->index].zs_baud = get_zsbaud(&zs_soft[co->index]); - - spin_unlock_irqrestore(&zs_lock, flags); - - return 0; -} - -static struct console zs_console = { - .name = "ttyS", - .write = serial_console_write, - .device = serial_console_device, - .setup = serial_console_setup, - .flags = CON_PRINTBUFFER, - .index = -1, -}; - -/* - * Register console. - */ -void __init zs_serial_console_init(void) -{ - register_console(&zs_console); -} -#endif /* ifdef CONFIG_SERIAL_DEC_CONSOLE */ - -#ifdef CONFIG_KGDB -struct dec_zschannel *zs_kgdbchan; -static unsigned char scc_inittab[] = { - 9, 0x80, /* reset A side (CHRA) */ - 13, 0, /* set baud rate divisor */ - 12, 1, - 14, 1, /* baud rate gen enable, src=rtxc (BRENABL) */ - 11, 0x50, /* clocks = br gen (RCBR | TCBR) */ - 5, 0x6a, /* tx 8 bits, assert RTS (Tx8 | TxENAB | RTS) */ - 4, 0x44, /* x16 clock, 1 stop (SB1 | X16CLK)*/ - 3, 0xc1, /* rx enable, 8 bits (RxENABLE | Rx8)*/ -}; - -/* These are for receiving and sending characters under the kgdb - * source level kernel debugger. - */ -void putDebugChar(char kgdb_char) -{ - struct dec_zschannel *chan = zs_kgdbchan; - while ((read_zsreg(chan, 0) & Tx_BUF_EMP) == 0) - RECOVERY_DELAY; - write_zsdata(chan, kgdb_char); -} -char getDebugChar(void) -{ - struct dec_zschannel *chan = zs_kgdbchan; - while((read_zsreg(chan, 0) & Rx_CH_AV) == 0) - eieio(); /*barrier();*/ - return read_zsdata(chan); -} -void kgdb_interruptible(int yes) -{ - struct dec_zschannel *chan = zs_kgdbchan; - int one, nine; - nine = read_zsreg(chan, 9); - if (yes == 1) { - one = EXT_INT_ENAB|RxINT_ALL; - nine |= MIE; - printk("turning serial ints on\n"); - } else { - one = RxINT_DISAB; - nine &= ~MIE; - printk("turning serial ints off\n"); - } - write_zsreg(chan, 1, one); - write_zsreg(chan, 9, nine); -} - -static int kgdbhook_init_channel(void *handle) -{ - return 0; -} - -static void kgdbhook_init_info(void *handle) -{ -} - -static void kgdbhook_rx_char(void *handle, unsigned char ch, unsigned char fl) -{ - struct dec_serial *info = handle; - - if (fl != TTY_NORMAL) - return; - if (ch == 0x03 || ch == '$') - breakpoint(); -} - -/* This sets up the serial port we're using, and turns on - * interrupts for that channel, so kgdb is usable once we're done. - */ -static inline void kgdb_chaninit(struct dec_zschannel *ms, int intson, int bps) -{ - int brg; - int i, x; - volatile char *sccc = ms->control; - brg = BPS_TO_BRG(bps, zs_parms->clock/16); - printk("setting bps on kgdb line to %d [brg=%x]\n", bps, brg); - for (i = 20000; i != 0; --i) { - x = *sccc; eieio(); - } - for (i = 0; i < sizeof(scc_inittab); ++i) { - write_zsreg(ms, scc_inittab[i], scc_inittab[i+1]); - i++; - } -} -/* This is called at boot time to prime the kgdb serial debugging - * serial line. The 'tty_num' argument is 0 for /dev/ttya and 1 - * for /dev/ttyb which is determined in setup_arch() from the - * boot command line flags. - */ -struct dec_serial_hook zs_kgdbhook = { - .init_channel = kgdbhook_init_channel, - .init_info = kgdbhook_init_info, - .rx_char = kgdbhook_rx_char, - .cflags = B38400 | CS8 | CLOCAL, -}; - -void __init zs_kgdb_hook(int tty_num) -{ - /* Find out how many Z8530 SCCs we have */ - if (zs_chain == 0) - probe_sccs(); - zs_soft[tty_num].zs_channel = &zs_channels[tty_num]; - zs_kgdbchan = zs_soft[tty_num].zs_channel; - zs_soft[tty_num].change_needed = 0; - zs_soft[tty_num].clk_divisor = 16; - zs_soft[tty_num].zs_baud = 38400; - zs_soft[tty_num].hook = &zs_kgdbhook; /* This runs kgdb */ - /* Turn on transmitter/receiver at 8-bits/char */ - kgdb_chaninit(zs_soft[tty_num].zs_channel, 1, 38400); - printk("KGDB: on channel %d initialized\n", tty_num); - set_debug_traps(); /* init stub */ -} -#endif /* ifdef CONFIG_KGDB */ diff --git a/drivers/tc/zs.h b/drivers/tc/zs.h deleted file mode 100644 index 13512200ceba..000000000000 --- a/drivers/tc/zs.h +++ /dev/null @@ -1,404 +0,0 @@ -/* - * drivers/tc/zs.h: Definitions for the DECstation Z85C30 serial driver. - * - * Adapted from drivers/sbus/char/sunserial.h by Paul Mackerras. - * Adapted from drivers/macintosh/macserial.h by Harald Koerfgen. - * - * Copyright (C) 1996 Paul Mackerras (Paul.Mackerras@cs.anu.edu.au) - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 2004, 2005 Maciej W. Rozycki - */ -#ifndef _DECSERIAL_H -#define _DECSERIAL_H - -#include <asm/dec/serial.h> - -#define NUM_ZSREGS 16 - -struct serial_struct { - int type; - int line; - int port; - int irq; - int flags; - int xmit_fifo_size; - int custom_divisor; - int baud_base; - unsigned short close_delay; - char reserved_char[2]; - int hub6; - unsigned short closing_wait; /* time to wait before closing */ - unsigned short closing_wait2; /* no longer used... */ - int reserved[4]; -}; - -/* - * For the close wait times, 0 means wait forever for serial port to - * flush its output. 65535 means don't wait at all. - */ -#define ZILOG_CLOSING_WAIT_INF 0 -#define ZILOG_CLOSING_WAIT_NONE 65535 - -/* - * Definitions for ZILOG_struct (and serial_struct) flags field - */ -#define ZILOG_HUP_NOTIFY 0x0001 /* Notify getty on hangups and closes - on the callout port */ -#define ZILOG_FOURPORT 0x0002 /* Set OU1, OUT2 per AST Fourport settings */ -#define ZILOG_SAK 0x0004 /* Secure Attention Key (Orange book) */ -#define ZILOG_SPLIT_TERMIOS 0x0008 /* Separate termios for dialin/callout */ - -#define ZILOG_SPD_MASK 0x0030 -#define ZILOG_SPD_HI 0x0010 /* Use 56000 instead of 38400 bps */ - -#define ZILOG_SPD_VHI 0x0020 /* Use 115200 instead of 38400 bps */ -#define ZILOG_SPD_CUST 0x0030 /* Use user-specified divisor */ - -#define ZILOG_SKIP_TEST 0x0040 /* Skip UART test during autoconfiguration */ -#define ZILOG_AUTO_IRQ 0x0080 /* Do automatic IRQ during autoconfiguration */ -#define ZILOG_SESSION_LOCKOUT 0x0100 /* Lock out cua opens based on session */ -#define ZILOG_PGRP_LOCKOUT 0x0200 /* Lock out cua opens based on pgrp */ -#define ZILOG_CALLOUT_NOHUP 0x0400 /* Don't do hangups for cua device */ - -#define ZILOG_FLAGS 0x0FFF /* Possible legal ZILOG flags */ -#define ZILOG_USR_MASK 0x0430 /* Legal flags that non-privileged - * users can set or reset */ - -/* Internal flags used only by kernel/chr_drv/serial.c */ -#define ZILOG_INITIALIZED 0x80000000 /* Serial port was initialized */ -#define ZILOG_CALLOUT_ACTIVE 0x40000000 /* Call out device is active */ -#define ZILOG_NORMAL_ACTIVE 0x20000000 /* Normal device is active */ -#define ZILOG_BOOT_AUTOCONF 0x10000000 /* Autoconfigure port on bootup */ -#define ZILOG_CLOSING 0x08000000 /* Serial port is closing */ -#define ZILOG_CTS_FLOW 0x04000000 /* Do CTS flow control */ -#define ZILOG_CHECK_CD 0x02000000 /* i.e., CLOCAL */ - -/* Software state per channel */ - -#ifdef __KERNEL__ -/* - * This is our internal structure for each serial port's state. - * - * Many fields are paralleled by the structure used by the serial_struct - * structure. - * - * For definitions of the flags field, see tty.h - */ - -struct dec_zschannel { - volatile unsigned char *control; - volatile unsigned char *data; - - /* Current write register values */ - unsigned char curregs[NUM_ZSREGS]; -}; - -struct dec_serial { - struct dec_serial *zs_next; /* For IRQ servicing chain. */ - struct dec_zschannel *zs_channel; /* Channel registers. */ - struct dec_zschannel *zs_chan_a; /* A side registers. */ - unsigned char read_reg_zero; - - struct dec_serial_hook *hook; /* Hook on this channel. */ - int tty_break; /* Set on BREAK condition. */ - int is_cons; /* Is this our console. */ - int tx_active; /* Char is being xmitted. */ - int tx_stopped; /* Output is suspended. */ - - /* - * We need to know the current clock divisor - * to read the bps rate the chip has currently loaded. - */ - int clk_divisor; /* May be 1, 16, 32, or 64. */ - int zs_baud; - - char change_needed; - - int magic; - int baud_base; - int port; - int irq; - int flags; /* Defined in tty.h. */ - int type; /* UART type. */ - struct tty_struct *tty; - int read_status_mask; - int ignore_status_mask; - int timeout; - int xmit_fifo_size; - int custom_divisor; - int x_char; /* XON/XOFF character. */ - int close_delay; - unsigned short closing_wait; - unsigned short closing_wait2; - unsigned long event; - unsigned long last_active; - int line; - int count; /* # of fds on device. */ - int blocked_open; /* # of blocked opens. */ - unsigned char *xmit_buf; - int xmit_head; - int xmit_tail; - int xmit_cnt; - struct tasklet_struct tlet; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; -}; - - -#define SERIAL_MAGIC 0x5301 - -/* - * The size of the serial xmit buffer is 1 page, or 4096 bytes - */ -#define SERIAL_XMIT_SIZE 4096 - -/* - * Events are used to schedule things to happen at timer-interrupt - * time, instead of at rs interrupt time. - */ -#define RS_EVENT_WRITE_WAKEUP 0 - -#endif /* __KERNEL__ */ - -/* Conversion routines to/from brg time constants from/to bits - * per second. - */ -#define BRG_TO_BPS(brg, freq) ((freq) / 2 / ((brg) + 2)) -#define BPS_TO_BRG(bps, freq) ((((freq) + (bps)) / (2 * (bps))) - 2) - -/* The Zilog register set */ - -#define FLAG 0x7e - -/* Write Register 0 */ -#define R0 0 /* Register selects */ -#define R1 1 -#define R2 2 -#define R3 3 -#define R4 4 -#define R5 5 -#define R6 6 -#define R7 7 -#define R8 8 -#define R9 9 -#define R10 10 -#define R11 11 -#define R12 12 -#define R13 13 -#define R14 14 -#define R15 15 - -#define NULLCODE 0 /* Null Code */ -#define POINT_HIGH 0x8 /* Select upper half of registers */ -#define RES_EXT_INT 0x10 /* Reset Ext. Status Interrupts */ -#define SEND_ABORT 0x18 /* HDLC Abort */ -#define RES_RxINT_FC 0x20 /* Reset RxINT on First Character */ -#define RES_Tx_P 0x28 /* Reset TxINT Pending */ -#define ERR_RES 0x30 /* Error Reset */ -#define RES_H_IUS 0x38 /* Reset highest IUS */ - -#define RES_Rx_CRC 0x40 /* Reset Rx CRC Checker */ -#define RES_Tx_CRC 0x80 /* Reset Tx CRC Checker */ -#define RES_EOM_L 0xC0 /* Reset EOM latch */ - -/* Write Register 1 */ - -#define EXT_INT_ENAB 0x1 /* Ext Int Enable */ -#define TxINT_ENAB 0x2 /* Tx Int Enable */ -#define PAR_SPEC 0x4 /* Parity is special condition */ - -#define RxINT_DISAB 0 /* Rx Int Disable */ -#define RxINT_FCERR 0x8 /* Rx Int on First Character Only or Error */ -#define RxINT_ALL 0x10 /* Int on all Rx Characters or error */ -#define RxINT_ERR 0x18 /* Int on error only */ -#define RxINT_MASK 0x18 - -#define WT_RDY_RT 0x20 /* Wait/Ready on R/T */ -#define WT_FN_RDYFN 0x40 /* Wait/FN/Ready FN */ -#define WT_RDY_ENAB 0x80 /* Wait/Ready Enable */ - -/* Write Register #2 (Interrupt Vector) */ - -/* Write Register 3 */ - -#define RxENABLE 0x1 /* Rx Enable */ -#define SYNC_L_INH 0x2 /* Sync Character Load Inhibit */ -#define ADD_SM 0x4 /* Address Search Mode (SDLC) */ -#define RxCRC_ENAB 0x8 /* Rx CRC Enable */ -#define ENT_HM 0x10 /* Enter Hunt Mode */ -#define AUTO_ENAB 0x20 /* Auto Enables */ -#define Rx5 0x0 /* Rx 5 Bits/Character */ -#define Rx7 0x40 /* Rx 7 Bits/Character */ -#define Rx6 0x80 /* Rx 6 Bits/Character */ -#define Rx8 0xc0 /* Rx 8 Bits/Character */ -#define RxNBITS_MASK 0xc0 - -/* Write Register 4 */ - -#define PAR_ENA 0x1 /* Parity Enable */ -#define PAR_EVEN 0x2 /* Parity Even/Odd* */ - -#define SYNC_ENAB 0 /* Sync Modes Enable */ -#define SB1 0x4 /* 1 stop bit/char */ -#define SB15 0x8 /* 1.5 stop bits/char */ -#define SB2 0xc /* 2 stop bits/char */ -#define SB_MASK 0xc - -#define MONSYNC 0 /* 8 Bit Sync character */ -#define BISYNC 0x10 /* 16 bit sync character */ -#define SDLC 0x20 /* SDLC Mode (01111110 Sync Flag) */ -#define EXTSYNC 0x30 /* External Sync Mode */ - -#define X1CLK 0x0 /* x1 clock mode */ -#define X16CLK 0x40 /* x16 clock mode */ -#define X32CLK 0x80 /* x32 clock mode */ -#define X64CLK 0xC0 /* x64 clock mode */ -#define XCLK_MASK 0xC0 - -/* Write Register 5 */ - -#define TxCRC_ENAB 0x1 /* Tx CRC Enable */ -#define RTS 0x2 /* RTS */ -#define SDLC_CRC 0x4 /* SDLC/CRC-16 */ -#define TxENAB 0x8 /* Tx Enable */ -#define SND_BRK 0x10 /* Send Break */ -#define Tx5 0x0 /* Tx 5 bits (or less)/character */ -#define Tx7 0x20 /* Tx 7 bits/character */ -#define Tx6 0x40 /* Tx 6 bits/character */ -#define Tx8 0x60 /* Tx 8 bits/character */ -#define TxNBITS_MASK 0x60 -#define DTR 0x80 /* DTR */ - -/* Write Register 6 (Sync bits 0-7/SDLC Address Field) */ - -/* Write Register 7 (Sync bits 8-15/SDLC 01111110) */ - -/* Write Register 8 (transmit buffer) */ - -/* Write Register 9 (Master interrupt control) */ -#define VIS 1 /* Vector Includes Status */ -#define NV 2 /* No Vector */ -#define DLC 4 /* Disable Lower Chain */ -#define MIE 8 /* Master Interrupt Enable */ -#define STATHI 0x10 /* Status high */ -#define SOFTACK 0x20 /* Software Interrupt Acknowledge */ -#define NORESET 0 /* No reset on write to R9 */ -#define CHRB 0x40 /* Reset channel B */ -#define CHRA 0x80 /* Reset channel A */ -#define FHWRES 0xc0 /* Force hardware reset */ - -/* Write Register 10 (misc control bits) */ -#define BIT6 1 /* 6 bit/8bit sync */ -#define LOOPMODE 2 /* SDLC Loop mode */ -#define ABUNDER 4 /* Abort/flag on SDLC xmit underrun */ -#define MARKIDLE 8 /* Mark/flag on idle */ -#define GAOP 0x10 /* Go active on poll */ -#define NRZ 0 /* NRZ mode */ -#define NRZI 0x20 /* NRZI mode */ -#define FM1 0x40 /* FM1 (transition = 1) */ -#define FM0 0x60 /* FM0 (transition = 0) */ -#define CRCPS 0x80 /* CRC Preset I/O */ - -/* Write Register 11 (Clock Mode control) */ -#define TRxCXT 0 /* TRxC = Xtal output */ -#define TRxCTC 1 /* TRxC = Transmit clock */ -#define TRxCBR 2 /* TRxC = BR Generator Output */ -#define TRxCDP 3 /* TRxC = DPLL output */ -#define TRxCOI 4 /* TRxC O/I */ -#define TCRTxCP 0 /* Transmit clock = RTxC pin */ -#define TCTRxCP 8 /* Transmit clock = TRxC pin */ -#define TCBR 0x10 /* Transmit clock = BR Generator output */ -#define TCDPLL 0x18 /* Transmit clock = DPLL output */ -#define RCRTxCP 0 /* Receive clock = RTxC pin */ -#define RCTRxCP 0x20 /* Receive clock = TRxC pin */ -#define RCBR 0x40 /* Receive clock = BR Generator output */ -#define RCDPLL 0x60 /* Receive clock = DPLL output */ -#define RTxCX 0x80 /* RTxC Xtal/No Xtal */ - -/* Write Register 12 (lower byte of baud rate generator time constant) */ - -/* Write Register 13 (upper byte of baud rate generator time constant) */ - -/* Write Register 14 (Misc control bits) */ -#define BRENABL 1 /* Baud rate generator enable */ -#define BRSRC 2 /* Baud rate generator source */ -#define DTRREQ 4 /* DTR/Request function */ -#define AUTOECHO 8 /* Auto Echo */ -#define LOOPBAK 0x10 /* Local loopback */ -#define SEARCH 0x20 /* Enter search mode */ -#define RMC 0x40 /* Reset missing clock */ -#define DISDPLL 0x60 /* Disable DPLL */ -#define SSBR 0x80 /* Set DPLL source = BR generator */ -#define SSRTxC 0xa0 /* Set DPLL source = RTxC */ -#define SFMM 0xc0 /* Set FM mode */ -#define SNRZI 0xe0 /* Set NRZI mode */ - -/* Write Register 15 (external/status interrupt control) */ -#define ZCIE 2 /* Zero count IE */ -#define DCDIE 8 /* DCD IE */ -#define SYNCIE 0x10 /* Sync/hunt IE */ -#define CTSIE 0x20 /* CTS IE */ -#define TxUIE 0x40 /* Tx Underrun/EOM IE */ -#define BRKIE 0x80 /* Break/Abort IE */ - - -/* Read Register 0 */ -#define Rx_CH_AV 0x1 /* Rx Character Available */ -#define ZCOUNT 0x2 /* Zero count */ -#define Tx_BUF_EMP 0x4 /* Tx Buffer empty */ -#define DCD 0x8 /* DCD */ -#define SYNC_HUNT 0x10 /* Sync/hunt */ -#define CTS 0x20 /* CTS */ -#define TxEOM 0x40 /* Tx underrun */ -#define BRK_ABRT 0x80 /* Break/Abort */ - -/* Read Register 1 */ -#define ALL_SNT 0x1 /* All sent */ -/* Residue Data for 8 Rx bits/char programmed */ -#define RES3 0x8 /* 0/3 */ -#define RES4 0x4 /* 0/4 */ -#define RES5 0xc /* 0/5 */ -#define RES6 0x2 /* 0/6 */ -#define RES7 0xa /* 0/7 */ -#define RES8 0x6 /* 0/8 */ -#define RES18 0xe /* 1/8 */ -#define RES28 0x0 /* 2/8 */ -/* Special Rx Condition Interrupts */ -#define PAR_ERR 0x10 /* Parity error */ -#define Rx_OVR 0x20 /* Rx Overrun Error */ -#define FRM_ERR 0x40 /* CRC/Framing Error */ -#define END_FR 0x80 /* End of Frame (SDLC) */ - -/* Read Register 2 (channel b only) - Interrupt vector */ - -/* Read Register 3 (interrupt pending register) ch a only */ -#define CHBEXT 0x1 /* Channel B Ext/Stat IP */ -#define CHBTxIP 0x2 /* Channel B Tx IP */ -#define CHBRxIP 0x4 /* Channel B Rx IP */ -#define CHAEXT 0x8 /* Channel A Ext/Stat IP */ -#define CHATxIP 0x10 /* Channel A Tx IP */ -#define CHARxIP 0x20 /* Channel A Rx IP */ - -/* Read Register 8 (receive data register) */ - -/* Read Register 10 (misc status bits) */ -#define ONLOOP 2 /* On loop */ -#define LOOPSEND 0x10 /* Loop sending */ -#define CLK2MIS 0x40 /* Two clocks missing */ -#define CLK1MIS 0x80 /* One clock missing */ - -/* Read Register 12 (lower byte of baud rate generator constant) */ - -/* Read Register 13 (upper byte of baud rate generator constant) */ - -/* Read Register 15 (value of WR 15) */ - -/* Misc macros */ -#define ZS_CLEARERR(channel) (write_zsreg(channel, 0, ERR_RES)) -#define ZS_CLEARFIFO(channel) do { volatile unsigned char garbage; \ - garbage = read_zsdata(channel); \ - garbage = read_zsdata(channel); \ - garbage = read_zsdata(channel); \ - } while(0) - -#endif /* !(_DECSERIAL_H) */ diff --git a/drivers/telephony/Kconfig b/drivers/telephony/Kconfig index 8f530e68263b..5f98f673f1b6 100644 --- a/drivers/telephony/Kconfig +++ b/drivers/telephony/Kconfig @@ -19,6 +19,7 @@ if PHONE config PHONE_IXJ tristate "QuickNet Internet LineJack/PhoneJack support" + depends ISA || PCI ---help--- Say M if you have a telephony card manufactured by Quicknet Technologies, Inc. These include the Internet PhoneJACK and diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c index c7b0a357b04a..49cd9793404f 100644 --- a/drivers/telephony/ixj.c +++ b/drivers/telephony/ixj.c @@ -3453,7 +3453,6 @@ static void ixj_write_frame(IXJ *j) { int cnt, frame_count, dly; IXJ_WORD dat; - BYTES blankword; frame_count = 0; if(j->flags.cidplay) { @@ -3501,6 +3500,8 @@ static void ixj_write_frame(IXJ *j) } if (frame_count >= 1) { if (j->ver.low == 0x12 && j->play_mode && j->flags.play_first_frame) { + BYTES blankword; + switch (j->play_mode) { case PLAYBACK_MODE_ULAW: case PLAYBACK_MODE_ALAW: @@ -3508,6 +3509,7 @@ static void ixj_write_frame(IXJ *j) break; case PLAYBACK_MODE_8LINEAR: case PLAYBACK_MODE_16LINEAR: + default: blankword.low = blankword.high = 0x00; break; case PLAYBACK_MODE_8LINEAR_WSS: @@ -3531,6 +3533,8 @@ static void ixj_write_frame(IXJ *j) j->flags.play_first_frame = 0; } else if (j->play_codec == G723_63 && j->flags.play_first_frame) { for (cnt = 0; cnt < 24; cnt++) { + BYTES blankword; + if(cnt == 12) { blankword.low = 0x02; blankword.high = 0x00; @@ -4868,6 +4872,7 @@ static char daa_CR_read(IXJ *j, int cr) bytes.high = 0xB0 + cr; break; case SOP_PU_PULSEDIALING: + default: bytes.high = 0xF0 + cr; break; } diff --git a/drivers/telephony/ixj_pcmcia.c b/drivers/telephony/ixj_pcmcia.c index 3e658dc7c2d8..ff9a29b76336 100644 --- a/drivers/telephony/ixj_pcmcia.c +++ b/drivers/telephony/ixj_pcmcia.c @@ -45,11 +45,10 @@ static int ixj_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 3; p_dev->conf.IntType = INT_MEMORY_AND_IO; - p_dev->priv = kmalloc(sizeof(struct ixj_info_t), GFP_KERNEL); + p_dev->priv = kzalloc(sizeof(struct ixj_info_t), GFP_KERNEL); if (!p_dev->priv) { return -ENOMEM; } - memset(p_dev->priv, 0, sizeof(struct ixj_info_t)); return ixj_config(p_dev); } diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig new file mode 100644 index 000000000000..b778ed71f636 --- /dev/null +++ b/drivers/uio/Kconfig @@ -0,0 +1,29 @@ +menu "Userspace I/O" + depends on !S390 + +config UIO + tristate "Userspace I/O drivers" + default n + help + Enable this to allow the userspace driver core code to be + built. This code allows userspace programs easy access to + kernel interrupts and memory locations, allowing some drivers + to be written in userspace. Note that a small kernel driver + is also required for interrupt handling to work properly. + + If you don't know what to do here, say N. + +config UIO_CIF + tristate "generic Hilscher CIF Card driver" + depends on UIO && PCI + default n + help + Driver for Hilscher CIF DeviceNet and Profibus cards. This + driver requires a userspace component that handles all of the + heavy lifting and can be found at: + http://www.osadl.org/projects/downloads/UIO/user/cif-* + + To compile this driver as a module, choose M here: the module + will be called uio_cif. + +endmenu diff --git a/drivers/uio/Makefile b/drivers/uio/Makefile new file mode 100644 index 000000000000..7fecfb459da5 --- /dev/null +++ b/drivers/uio/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_UIO) += uio.o +obj-$(CONFIG_UIO_CIF) += uio_cif.o diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c new file mode 100644 index 000000000000..865f32b63b5c --- /dev/null +++ b/drivers/uio/uio.c @@ -0,0 +1,701 @@ +/* + * drivers/uio/uio.c + * + * Copyright(C) 2005, Benedikt Spranger <b.spranger@linutronix.de> + * Copyright(C) 2005, Thomas Gleixner <tglx@linutronix.de> + * Copyright(C) 2006, Hans J. Koch <hjk@linutronix.de> + * Copyright(C) 2006, Greg Kroah-Hartman <greg@kroah.com> + * + * Userspace IO + * + * Base Functions + * + * Licensed under the GPLv2 only. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/poll.h> +#include <linux/device.h> +#include <linux/mm.h> +#include <linux/idr.h> +#include <linux/string.h> +#include <linux/kobject.h> +#include <linux/uio_driver.h> + +#define UIO_MAX_DEVICES 255 + +struct uio_device { + struct module *owner; + struct device *dev; + int minor; + atomic_t event; + struct fasync_struct *async_queue; + wait_queue_head_t wait; + int vma_count; + struct uio_info *info; + struct kset map_attr_kset; +}; + +static int uio_major; +static DEFINE_IDR(uio_idr); +static struct file_operations uio_fops; + +/* UIO class infrastructure */ +static struct uio_class { + struct kref kref; + struct class *class; +} *uio_class; + +/* + * attributes + */ + +static struct attribute attr_addr = { + .name = "addr", + .mode = S_IRUGO, +}; + +static struct attribute attr_size = { + .name = "size", + .mode = S_IRUGO, +}; + +static struct attribute* map_attrs[] = { + &attr_addr, &attr_size, NULL +}; + +static ssize_t map_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct uio_mem *mem = container_of(kobj, struct uio_mem, kobj); + + if (strncmp(attr->name,"addr",4) == 0) + return sprintf(buf, "0x%lx\n", mem->addr); + + if (strncmp(attr->name,"size",4) == 0) + return sprintf(buf, "0x%lx\n", mem->size); + + return -ENODEV; +} + +static void map_attr_release(struct kobject *kobj) +{ + /* TODO ??? */ +} + +static struct sysfs_ops map_attr_ops = { + .show = map_attr_show, +}; + +static struct kobj_type map_attr_type = { + .release = map_attr_release, + .sysfs_ops = &map_attr_ops, + .default_attrs = map_attrs, +}; + +static ssize_t show_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uio_device *idev = dev_get_drvdata(dev); + if (idev) + return sprintf(buf, "%s\n", idev->info->name); + else + return -ENODEV; +} +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + +static ssize_t show_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uio_device *idev = dev_get_drvdata(dev); + if (idev) + return sprintf(buf, "%s\n", idev->info->version); + else + return -ENODEV; +} +static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); + +static ssize_t show_event(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uio_device *idev = dev_get_drvdata(dev); + if (idev) + return sprintf(buf, "%u\n", + (unsigned int)atomic_read(&idev->event)); + else + return -ENODEV; +} +static DEVICE_ATTR(event, S_IRUGO, show_event, NULL); + +static struct attribute *uio_attrs[] = { + &dev_attr_name.attr, + &dev_attr_version.attr, + &dev_attr_event.attr, + NULL, +}; + +static struct attribute_group uio_attr_grp = { + .attrs = uio_attrs, +}; + +/* + * device functions + */ +static int uio_dev_add_attributes(struct uio_device *idev) +{ + int ret; + int mi; + int map_found = 0; + struct uio_mem *mem; + + ret = sysfs_create_group(&idev->dev->kobj, &uio_attr_grp); + if (ret) + goto err_group; + + for (mi = 0; mi < MAX_UIO_MAPS; mi++) { + mem = &idev->info->mem[mi]; + if (mem->size == 0) + break; + if (!map_found) { + map_found = 1; + kobject_set_name(&idev->map_attr_kset.kobj,"maps"); + idev->map_attr_kset.ktype = &map_attr_type; + idev->map_attr_kset.kobj.parent = &idev->dev->kobj; + ret = kset_register(&idev->map_attr_kset); + if (ret) + goto err_remove_group; + } + kobject_init(&mem->kobj); + kobject_set_name(&mem->kobj,"map%d",mi); + mem->kobj.parent = &idev->map_attr_kset.kobj; + mem->kobj.kset = &idev->map_attr_kset; + ret = kobject_add(&mem->kobj); + if (ret) + goto err_remove_maps; + } + + return 0; + +err_remove_maps: + for (mi--; mi>=0; mi--) { + mem = &idev->info->mem[mi]; + kobject_unregister(&mem->kobj); + } + kset_unregister(&idev->map_attr_kset); /* Needed ? */ +err_remove_group: + sysfs_remove_group(&idev->dev->kobj, &uio_attr_grp); +err_group: + dev_err(idev->dev, "error creating sysfs files (%d)\n", ret); + return ret; +} + +static void uio_dev_del_attributes(struct uio_device *idev) +{ + int mi; + struct uio_mem *mem; + for (mi = 0; mi < MAX_UIO_MAPS; mi++) { + mem = &idev->info->mem[mi]; + if (mem->size == 0) + break; + kobject_unregister(&mem->kobj); + } + kset_unregister(&idev->map_attr_kset); + sysfs_remove_group(&idev->dev->kobj, &uio_attr_grp); +} + +static int uio_get_minor(struct uio_device *idev) +{ + static DEFINE_MUTEX(minor_lock); + int retval = -ENOMEM; + int id; + + mutex_lock(&minor_lock); + if (idr_pre_get(&uio_idr, GFP_KERNEL) == 0) + goto exit; + + retval = idr_get_new(&uio_idr, idev, &id); + if (retval < 0) { + if (retval == -EAGAIN) + retval = -ENOMEM; + goto exit; + } + idev->minor = id & MAX_ID_MASK; +exit: + mutex_unlock(&minor_lock); + return retval; +} + +static void uio_free_minor(struct uio_device *idev) +{ + idr_remove(&uio_idr, idev->minor); +} + +/** + * uio_event_notify - trigger an interrupt event + * @info: UIO device capabilities + */ +void uio_event_notify(struct uio_info *info) +{ + struct uio_device *idev = info->uio_dev; + + atomic_inc(&idev->event); + wake_up_interruptible(&idev->wait); + kill_fasync(&idev->async_queue, SIGIO, POLL_IN); +} +EXPORT_SYMBOL_GPL(uio_event_notify); + +/** + * uio_interrupt - hardware interrupt handler + * @irq: IRQ number, can be UIO_IRQ_CYCLIC for cyclic timer + * @dev_id: Pointer to the devices uio_device structure + */ +static irqreturn_t uio_interrupt(int irq, void *dev_id) +{ + struct uio_device *idev = (struct uio_device *)dev_id; + irqreturn_t ret = idev->info->handler(irq, idev->info); + + if (ret == IRQ_HANDLED) + uio_event_notify(idev->info); + + return ret; +} + +struct uio_listener { + struct uio_device *dev; + s32 event_count; +}; + +static int uio_open(struct inode *inode, struct file *filep) +{ + struct uio_device *idev; + struct uio_listener *listener; + int ret = 0; + + idev = idr_find(&uio_idr, iminor(inode)); + if (!idev) + return -ENODEV; + + listener = kmalloc(sizeof(*listener), GFP_KERNEL); + if (!listener) + return -ENOMEM; + + listener->dev = idev; + listener->event_count = atomic_read(&idev->event); + filep->private_data = listener; + + if (idev->info->open) { + if (!try_module_get(idev->owner)) + return -ENODEV; + ret = idev->info->open(idev->info, inode); + module_put(idev->owner); + } + + if (ret) + kfree(listener); + + return ret; +} + +static int uio_fasync(int fd, struct file *filep, int on) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + + return fasync_helper(fd, filep, on, &idev->async_queue); +} + +static int uio_release(struct inode *inode, struct file *filep) +{ + int ret = 0; + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + + if (idev->info->release) { + if (!try_module_get(idev->owner)) + return -ENODEV; + ret = idev->info->release(idev->info, inode); + module_put(idev->owner); + } + if (filep->f_flags & FASYNC) + ret = uio_fasync(-1, filep, 0); + kfree(listener); + return ret; +} + +static unsigned int uio_poll(struct file *filep, poll_table *wait) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + + if (idev->info->irq == UIO_IRQ_NONE) + return -EIO; + + poll_wait(filep, &idev->wait, wait); + if (listener->event_count != atomic_read(&idev->event)) + return POLLIN | POLLRDNORM; + return 0; +} + +static ssize_t uio_read(struct file *filep, char __user *buf, + size_t count, loff_t *ppos) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + DECLARE_WAITQUEUE(wait, current); + ssize_t retval; + s32 event_count; + + if (idev->info->irq == UIO_IRQ_NONE) + return -EIO; + + if (count != sizeof(s32)) + return -EINVAL; + + add_wait_queue(&idev->wait, &wait); + + do { + set_current_state(TASK_INTERRUPTIBLE); + + event_count = atomic_read(&idev->event); + if (event_count != listener->event_count) { + if (copy_to_user(buf, &event_count, count)) + retval = -EFAULT; + else { + listener->event_count = event_count; + retval = count; + } + break; + } + + if (filep->f_flags & O_NONBLOCK) { + retval = -EAGAIN; + break; + } + + if (signal_pending(current)) { + retval = -ERESTARTSYS; + break; + } + schedule(); + } while (1); + + __set_current_state(TASK_RUNNING); + remove_wait_queue(&idev->wait, &wait); + + return retval; +} + +static int uio_find_mem_index(struct vm_area_struct *vma) +{ + int mi; + struct uio_device *idev = vma->vm_private_data; + + for (mi = 0; mi < MAX_UIO_MAPS; mi++) { + if (idev->info->mem[mi].size == 0) + return -1; + if (vma->vm_pgoff == mi) + return mi; + } + return -1; +} + +static void uio_vma_open(struct vm_area_struct *vma) +{ + struct uio_device *idev = vma->vm_private_data; + idev->vma_count++; +} + +static void uio_vma_close(struct vm_area_struct *vma) +{ + struct uio_device *idev = vma->vm_private_data; + idev->vma_count--; +} + +static struct page *uio_vma_nopage(struct vm_area_struct *vma, + unsigned long address, int *type) +{ + struct uio_device *idev = vma->vm_private_data; + struct page* page = NOPAGE_SIGBUS; + + int mi = uio_find_mem_index(vma); + if (mi < 0) + return page; + + if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL) + page = virt_to_page(idev->info->mem[mi].addr); + else + page = vmalloc_to_page((void*)idev->info->mem[mi].addr); + get_page(page); + if (type) + *type = VM_FAULT_MINOR; + return page; +} + +static struct vm_operations_struct uio_vm_ops = { + .open = uio_vma_open, + .close = uio_vma_close, + .nopage = uio_vma_nopage, +}; + +static int uio_mmap_physical(struct vm_area_struct *vma) +{ + struct uio_device *idev = vma->vm_private_data; + int mi = uio_find_mem_index(vma); + if (mi < 0) + return -EINVAL; + + vma->vm_flags |= VM_IO | VM_RESERVED; + + return remap_pfn_range(vma, + vma->vm_start, + idev->info->mem[mi].addr >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, + vma->vm_page_prot); +} + +static int uio_mmap_logical(struct vm_area_struct *vma) +{ + vma->vm_flags |= VM_RESERVED; + vma->vm_ops = &uio_vm_ops; + uio_vma_open(vma); + return 0; +} + +static int uio_mmap(struct file *filep, struct vm_area_struct *vma) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + int mi; + unsigned long requested_pages, actual_pages; + int ret = 0; + + if (vma->vm_end < vma->vm_start) + return -EINVAL; + + vma->vm_private_data = idev; + + mi = uio_find_mem_index(vma); + if (mi < 0) + return -EINVAL; + + requested_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + actual_pages = (idev->info->mem[mi].size + PAGE_SIZE -1) >> PAGE_SHIFT; + if (requested_pages > actual_pages) + return -EINVAL; + + if (idev->info->mmap) { + if (!try_module_get(idev->owner)) + return -ENODEV; + ret = idev->info->mmap(idev->info, vma); + module_put(idev->owner); + return ret; + } + + switch (idev->info->mem[mi].memtype) { + case UIO_MEM_PHYS: + return uio_mmap_physical(vma); + case UIO_MEM_LOGICAL: + case UIO_MEM_VIRTUAL: + return uio_mmap_logical(vma); + default: + return -EINVAL; + } +} + +static struct file_operations uio_fops = { + .owner = THIS_MODULE, + .open = uio_open, + .release = uio_release, + .read = uio_read, + .mmap = uio_mmap, + .poll = uio_poll, + .fasync = uio_fasync, +}; + +static int uio_major_init(void) +{ + uio_major = register_chrdev(0, "uio", &uio_fops); + if (uio_major < 0) + return uio_major; + return 0; +} + +static void uio_major_cleanup(void) +{ + unregister_chrdev(uio_major, "uio"); +} + +static int init_uio_class(void) +{ + int ret = 0; + + if (uio_class != NULL) { + kref_get(&uio_class->kref); + goto exit; + } + + /* This is the first time in here, set everything up properly */ + ret = uio_major_init(); + if (ret) + goto exit; + + uio_class = kzalloc(sizeof(*uio_class), GFP_KERNEL); + if (!uio_class) { + ret = -ENOMEM; + goto err_kzalloc; + } + + kref_init(&uio_class->kref); + uio_class->class = class_create(THIS_MODULE, "uio"); + if (IS_ERR(uio_class->class)) { + ret = IS_ERR(uio_class->class); + printk(KERN_ERR "class_create failed for uio\n"); + goto err_class_create; + } + return 0; + +err_class_create: + kfree(uio_class); + uio_class = NULL; +err_kzalloc: + uio_major_cleanup(); +exit: + return ret; +} + +static void release_uio_class(struct kref *kref) +{ + /* Ok, we cheat as we know we only have one uio_class */ + class_destroy(uio_class->class); + kfree(uio_class); + uio_major_cleanup(); + uio_class = NULL; +} + +static void uio_class_destroy(void) +{ + if (uio_class) + kref_put(&uio_class->kref, release_uio_class); +} + +/** + * uio_register_device - register a new userspace IO device + * @owner: module that creates the new device + * @parent: parent device + * @info: UIO device capabilities + * + * returns zero on success or a negative error code. + */ +int __uio_register_device(struct module *owner, + struct device *parent, + struct uio_info *info) +{ + struct uio_device *idev; + int ret = 0; + + if (!parent || !info || !info->name || !info->version) + return -EINVAL; + + info->uio_dev = NULL; + + ret = init_uio_class(); + if (ret) + return ret; + + idev = kzalloc(sizeof(*idev), GFP_KERNEL); + if (!idev) { + ret = -ENOMEM; + goto err_kzalloc; + } + + idev->owner = owner; + idev->info = info; + init_waitqueue_head(&idev->wait); + atomic_set(&idev->event, 0); + + ret = uio_get_minor(idev); + if (ret) + goto err_get_minor; + + idev->dev = device_create(uio_class->class, parent, + MKDEV(uio_major, idev->minor), + "uio%d", idev->minor); + if (IS_ERR(idev->dev)) { + printk(KERN_ERR "UIO: device register failed\n"); + ret = PTR_ERR(idev->dev); + goto err_device_create; + } + dev_set_drvdata(idev->dev, idev); + + ret = uio_dev_add_attributes(idev); + if (ret) + goto err_uio_dev_add_attributes; + + info->uio_dev = idev; + + if (idev->info->irq >= 0) { + ret = request_irq(idev->info->irq, uio_interrupt, + idev->info->irq_flags, idev->info->name, idev); + if (ret) + goto err_request_irq; + } + + return 0; + +err_request_irq: + uio_dev_del_attributes(idev); +err_uio_dev_add_attributes: + device_destroy(uio_class->class, MKDEV(uio_major, idev->minor)); +err_device_create: + uio_free_minor(idev); +err_get_minor: + kfree(idev); +err_kzalloc: + uio_class_destroy(); + return ret; +} +EXPORT_SYMBOL_GPL(__uio_register_device); + +/** + * uio_unregister_device - unregister a industrial IO device + * @info: UIO device capabilities + * + */ +void uio_unregister_device(struct uio_info *info) +{ + struct uio_device *idev; + + if (!info || !info->uio_dev) + return; + + idev = info->uio_dev; + + uio_free_minor(idev); + + if (info->irq >= 0) + free_irq(info->irq, idev); + + uio_dev_del_attributes(idev); + + dev_set_drvdata(idev->dev, NULL); + device_destroy(uio_class->class, MKDEV(uio_major, idev->minor)); + kfree(idev); + uio_class_destroy(); + + return; +} +EXPORT_SYMBOL_GPL(uio_unregister_device); + +static int __init uio_init(void) +{ + return 0; +} + +static void __exit uio_exit(void) +{ +} + +module_init(uio_init) +module_exit(uio_exit) +MODULE_LICENSE("GPL v2"); diff --git a/drivers/uio/uio_cif.c b/drivers/uio/uio_cif.c new file mode 100644 index 000000000000..838bae460831 --- /dev/null +++ b/drivers/uio/uio_cif.c @@ -0,0 +1,156 @@ +/* + * UIO Hilscher CIF card driver + * + * (C) 2007 Hans J. Koch <hjk@linutronix.de> + * Original code (C) 2005 Benedikt Spranger <b.spranger@linutronix.de> + * + * Licensed under GPL version 2 only. + * + */ + +#include <linux/device.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/uio_driver.h> + +#include <asm/io.h> + +#ifndef PCI_DEVICE_ID_PLX_9030 +#define PCI_DEVICE_ID_PLX_9030 0x9030 +#endif + +#define PLX9030_INTCSR 0x4C +#define INTSCR_INT1_ENABLE 0x01 +#define INTSCR_INT1_STATUS 0x04 +#define INT1_ENABLED_AND_ACTIVE (INTSCR_INT1_ENABLE | INTSCR_INT1_STATUS) + +#define PCI_SUBVENDOR_ID_PEP 0x1518 +#define CIF_SUBDEVICE_PROFIBUS 0x430 +#define CIF_SUBDEVICE_DEVICENET 0x432 + + +static irqreturn_t hilscher_handler(int irq, struct uio_info *dev_info) +{ + void __iomem *plx_intscr = dev_info->mem[0].internal_addr + + PLX9030_INTCSR; + + if ((ioread8(plx_intscr) & INT1_ENABLED_AND_ACTIVE) + != INT1_ENABLED_AND_ACTIVE) + return IRQ_NONE; + + /* Disable interrupt */ + iowrite8(ioread8(plx_intscr) & ~INTSCR_INT1_ENABLE, plx_intscr); + return IRQ_HANDLED; +} + +static int __devinit hilscher_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + struct uio_info *info; + + info = kzalloc(sizeof(struct uio_info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + if (pci_enable_device(dev)) + goto out_free; + + if (pci_request_regions(dev, "hilscher")) + goto out_disable; + + info->mem[0].addr = pci_resource_start(dev, 0); + if (!info->mem[0].addr) + goto out_release; + info->mem[0].internal_addr = ioremap(pci_resource_start(dev, 0), + pci_resource_len(dev, 0)); + if (!info->mem[0].internal_addr) + goto out_release; + + info->mem[0].size = pci_resource_len(dev, 0); + info->mem[0].memtype = UIO_MEM_PHYS; + info->mem[1].addr = pci_resource_start(dev, 2); + info->mem[1].size = pci_resource_len(dev, 2); + info->mem[1].memtype = UIO_MEM_PHYS; + switch (id->subdevice) { + case CIF_SUBDEVICE_PROFIBUS: + info->name = "CIF_Profibus"; + break; + case CIF_SUBDEVICE_DEVICENET: + info->name = "CIF_Devicenet"; + break; + default: + info->name = "CIF_???"; + } + info->version = "0.0.1"; + info->irq = dev->irq; + info->irq_flags = IRQF_DISABLED | IRQF_SHARED; + info->handler = hilscher_handler; + + if (uio_register_device(&dev->dev, info)) + goto out_unmap; + + pci_set_drvdata(dev, info); + + return 0; +out_unmap: + iounmap(info->mem[0].internal_addr); +out_release: + pci_release_regions(dev); +out_disable: + pci_disable_device(dev); +out_free: + kfree (info); + return -ENODEV; +} + +static void hilscher_pci_remove(struct pci_dev *dev) +{ + struct uio_info *info = pci_get_drvdata(dev); + + uio_unregister_device(info); + pci_release_regions(dev); + pci_disable_device(dev); + pci_set_drvdata(dev, NULL); + iounmap(info->mem[0].internal_addr); + + kfree (info); +} + +static struct pci_device_id hilscher_pci_ids[] = { + { + .vendor = PCI_VENDOR_ID_PLX, + .device = PCI_DEVICE_ID_PLX_9030, + .subvendor = PCI_SUBVENDOR_ID_PEP, + .subdevice = CIF_SUBDEVICE_PROFIBUS, + }, + { + .vendor = PCI_VENDOR_ID_PLX, + .device = PCI_DEVICE_ID_PLX_9030, + .subvendor = PCI_SUBVENDOR_ID_PEP, + .subdevice = CIF_SUBDEVICE_DEVICENET, + }, + { 0, } +}; + +static struct pci_driver hilscher_pci_driver = { + .name = "hilscher", + .id_table = hilscher_pci_ids, + .probe = hilscher_pci_probe, + .remove = hilscher_pci_remove, +}; + +static int __init hilscher_init_module(void) +{ + return pci_register_driver(&hilscher_pci_driver); +} + +static void __exit hilscher_exit_module(void) +{ + pci_unregister_driver(&hilscher_pci_driver); +} + +module_init(hilscher_init_module); +module_exit(hilscher_exit_module); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Hans J. Koch, Benedikt Spranger"); diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 071b9675a781..7dd73546bf43 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -16,7 +16,7 @@ config USB_ARCH_HAS_HCD boolean default y if USB_ARCH_HAS_OHCI default y if USB_ARCH_HAS_EHCI - default y if PCMCIA # sl811_cs + default y if PCMCIA && !M32R # sl811_cs default y if ARM # SL-811 default PCI diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index 4973e147bc79..8f046659b4e9 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -1168,6 +1168,7 @@ static int uea_kthread(void *data) struct uea_softc *sc = data; int ret = -EAGAIN; + set_freezable(); uea_enters(INS_TO_USBDEV(sc)); while (!kthread_should_stop()) { if (ret < 0 || sc->reset) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 73c49362cd47..654857493a82 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -29,13 +29,6 @@ #include "hcd.h" #include "usb.h" -#define VERBOSE_DEBUG 0 - -#if VERBOSE_DEBUG -#define dev_vdbg dev_dbg -#else -#define dev_vdbg(dev, fmt, args...) do { } while (0) -#endif #ifdef CONFIG_HOTPLUG diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 50e79010401c..fd74c50b1804 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2728,6 +2728,7 @@ loop: static int hub_thread(void *__unused) { + set_freezable(); do { hub_events(); wait_event_interruptible(khubd_wait, diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 8712ef987179..be7a1bd2823b 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -3434,6 +3434,9 @@ static int fsg_main_thread(void *fsg_) allow_signal(SIGKILL); allow_signal(SIGUSR1); + /* Allow the thread to be frozen */ + set_freezable(); + /* Arrange for userspace references to be interpreted as kernel * pointers. That way we can pass a kernel pointer to a routine * that expects a __user pointer and it will work okay. */ diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index d6c5f1150ae7..349b8166f34a 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -1777,14 +1777,13 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) } /* alloc, and start init */ - dev = kmalloc (sizeof *dev, GFP_KERNEL); + dev = kzalloc (sizeof *dev, GFP_KERNEL); if (dev == NULL){ pr_debug("enomem %s\n", pci_name(pdev)); retval = -ENOMEM; goto done; } - memset(dev, 0, sizeof *dev); spin_lock_init(&dev->lock); dev->pdev = pdev; dev->gadget.ops = &goku_ops; diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index dd33ff0ae4ce..38138bb9ddb0 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -1427,7 +1427,7 @@ static int __init gs_bind(struct usb_gadget *gadget) gs_acm_config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - gs_device = dev = kmalloc(sizeof(struct gs_dev), GFP_KERNEL); + gs_device = dev = kzalloc(sizeof(struct gs_dev), GFP_KERNEL); if (dev == NULL) return -ENOMEM; @@ -1435,7 +1435,6 @@ static int __init gs_bind(struct usb_gadget *gadget) init_utsname()->sysname, init_utsname()->release, gadget->name); - memset(dev, 0, sizeof(struct gs_dev)); dev->dev_gadget = gadget; spin_lock_init(&dev->dev_lock); INIT_LIST_HEAD(&dev->dev_req_list); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 2038125b7f8c..6edf4097d2d2 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -171,11 +171,10 @@ static int ohci_urb_enqueue ( } /* allocate the private part of the URB */ - urb_priv = kmalloc (sizeof (urb_priv_t) + size * sizeof (struct td *), + urb_priv = kzalloc (sizeof (urb_priv_t) + size * sizeof (struct td *), mem_flags); if (!urb_priv) return -ENOMEM; - memset (urb_priv, 0, sizeof (urb_priv_t) + size * sizeof (struct td *)); INIT_LIST_HEAD (&urb_priv->pending); urb_priv->length = size; urb_priv->ed = ed; diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c index 2d0e73b20099..5da63f535005 100644 --- a/drivers/usb/host/sl811_cs.c +++ b/drivers/usb/host/sl811_cs.c @@ -278,10 +278,9 @@ static int sl811_cs_probe(struct pcmcia_device *link) { local_info_t *local; - local = kmalloc(sizeof(local_info_t), GFP_KERNEL); + local = kzalloc(sizeof(local_info_t), GFP_KERNEL); if (!local) return -ENOMEM; - memset(local, 0, sizeof(local_info_t)); local->p_dev = link; link->priv = local; diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c index 1fd5fc220cd7..42d4e6454a77 100644 --- a/drivers/usb/misc/auerswald.c +++ b/drivers/usb/misc/auerswald.c @@ -630,7 +630,7 @@ static int auerchain_start_wait_urb (pauerchain_t acp, struct urb *urb, int time } else status = urb->status; - if (actual_length) + if (status >= 0) *actual_length = urb->actual_length; return status; @@ -664,7 +664,7 @@ static int auerchain_control_msg (pauerchain_t acp, struct usb_device *dev, unsi int ret; struct usb_ctrlrequest *dr; struct urb *urb; - int length; + int uninitialized_var(length); dbg ("auerchain_control_msg"); dr = kmalloc (sizeof (struct usb_ctrlrequest), GFP_KERNEL); diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index bef8bcd9bd98..28842d208bb0 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -311,8 +311,6 @@ static int usb_stor_control_thread(void * __us) struct Scsi_Host *host = us_to_host(us); int autopm_rc; - current->flags |= PF_NOFREEZE; - for(;;) { US_DEBUGP("*** thread sleeping.\n"); if(down_interruptible(&us->sema)) @@ -920,6 +918,7 @@ static int usb_stor_scan_thread(void * __us) printk(KERN_DEBUG "usb-storage: device found at %d\n", us->pusb_dev->devnum); + set_freezable(); /* Wait for the timeout to expire or for a disconnect */ if (delay_use > 0) { printk(KERN_DEBUG "usb-storage: waiting for device " diff --git a/drivers/video/68328fb.c b/drivers/video/68328fb.c index 0dda73da8628..7f907fb23b8a 100644 --- a/drivers/video/68328fb.c +++ b/drivers/video/68328fb.c @@ -60,7 +60,7 @@ static u_long videomemory; static u_long videomemorysize; static struct fb_info fb_info; -static u32 mc68x328fb_pseudo_palette[17]; +static u32 mc68x328fb_pseudo_palette[16]; static struct fb_var_screeninfo mc68x328fb_default __initdata = { .red = { 0, 8, 0 }, diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 9b7a76be36a0..0c5644bb59af 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -812,7 +812,7 @@ config FB_PVR2 config FB_EPSON1355 bool "Epson 1355 framebuffer support" - depends on (FB = y) && (SUPERH || ARCH_CEIVA) + depends on (FB = y) && ARCH_CEIVA select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -1820,6 +1820,10 @@ config FB_XILINX framebuffer. ML300 carries a 640*480 LCD display on the board, ML403 uses a standard DB15 VGA connector. +if ARCH_OMAP + source "drivers/video/omap/Kconfig" +endif + config FB_VIRTUAL tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)" depends on FB diff --git a/drivers/video/Makefile b/drivers/video/Makefile index bd8b05229500..a562f9d69d2c 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -113,6 +113,7 @@ obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o obj-$(CONFIG_FB_PS3) += ps3fb.o obj-$(CONFIG_FB_SM501) += sm501fb.o obj-$(CONFIG_FB_XILINX) += xilinxfb.o +obj-$(CONFIG_FB_OMAP) += omap/ # Platform or fallback drivers go here obj-$(CONFIG_FB_VESA) += vesafb.o diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c index 6c9dc2e69c82..a7a1c891bfa2 100644 --- a/drivers/video/amba-clcd.c +++ b/drivers/video/amba-clcd.c @@ -447,13 +447,12 @@ static int clcdfb_probe(struct amba_device *dev, void *id) goto out; } - fb = kmalloc(sizeof(struct clcd_fb), GFP_KERNEL); + fb = kzalloc(sizeof(struct clcd_fb), GFP_KERNEL); if (!fb) { printk(KERN_INFO "CLCD: could not allocate new clcd_fb struct\n"); ret = -ENOMEM; goto free_region; } - memset(fb, 0, sizeof(struct clcd_fb)); fb->dev = dev; fb->board = board; diff --git a/drivers/video/aty/ati_ids.h b/drivers/video/aty/ati_ids.h index 90e7df22f508..685a754991c6 100644 --- a/drivers/video/aty/ati_ids.h +++ b/drivers/video/aty/ati_ids.h @@ -204,6 +204,7 @@ #define PCI_CHIP_RV280_5961 0x5961 #define PCI_CHIP_RV280_5962 0x5962 #define PCI_CHIP_RV280_5964 0x5964 +#define PCI_CHIP_RS485_5975 0x5975 #define PCI_CHIP_RV280_5C61 0x5C61 #define PCI_CHIP_RV280_5C63 0x5C63 #define PCI_CHIP_R423_5D57 0x5D57 diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index 2fbff6317433..0c7bf75732ea 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -541,7 +541,7 @@ static char ram_off[] __devinitdata = "OFF"; #endif /* CONFIG_FB_ATY_CT */ -static u32 pseudo_palette[17]; +static u32 pseudo_palette[16]; #ifdef CONFIG_FB_ATY_GX static char *aty_gx_ram[8] __devinitdata = { @@ -2937,12 +2937,11 @@ static int __devinit atyfb_setup_sparc(struct pci_dev *pdev, /* nothing */ ; j = i + 4; - par->mmap_map = kmalloc(j * sizeof(*par->mmap_map), GFP_ATOMIC); + par->mmap_map = kcalloc(j, sizeof(*par->mmap_map), GFP_ATOMIC); if (!par->mmap_map) { PRINTKE("atyfb_setup_sparc() can't alloc mmap_map\n"); return -ENOMEM; } - memset(par->mmap_map, 0, j * sizeof(*par->mmap_map)); for (i = 0, j = 2; i < 6 && pdev->resource[i].start; i++) { struct resource *rp = &pdev->resource[i]; diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c index 2349e71b0083..47ca62fe7c3e 100644 --- a/drivers/video/aty/radeon_base.c +++ b/drivers/video/aty/radeon_base.c @@ -153,6 +153,8 @@ static struct pci_device_id radeonfb_pci_table[] = { /* Mobility 9200 (M9+) */ CHIP_DEF(PCI_CHIP_RV280_5C61, RV280, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY), CHIP_DEF(PCI_CHIP_RV280_5C63, RV280, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY), + /*Mobility Xpress 200 */ + CHIP_DEF(PCI_CHIP_RS485_5975, R300, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY), /* 9200 */ CHIP_DEF(PCI_CHIP_RV280_5960, RV280, CHIP_HAS_CRTC2), CHIP_DEF(PCI_CHIP_RV280_5961, RV280, CHIP_HAS_CRTC2), diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h index 7ebffcdfd1e3..7c922c7b460b 100644 --- a/drivers/video/aty/radeonfb.h +++ b/drivers/video/aty/radeonfb.h @@ -301,7 +301,7 @@ struct radeonfb_info { void __iomem *bios_seg; int fp_bios_start; - u32 pseudo_palette[17]; + u32 pseudo_palette[16]; struct { u8 red, green, blue, pad; } palette[256]; diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c index dbf4ec3f6d57..03e57ef88378 100644 --- a/drivers/video/au1200fb.c +++ b/drivers/video/au1200fb.c @@ -1589,11 +1589,10 @@ static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) return -EFAULT; } - fbi->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL); + fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL); if (!fbi->pseudo_palette) { return -ENOMEM; } - memset(fbi->pseudo_palette, 0, sizeof(u32) * 16); if (fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0) < 0) { print_err("Fail to allocate colormap (%d entries)", diff --git a/drivers/video/clps711xfb.c b/drivers/video/clps711xfb.c index 50b78af0fa24..dea6579941b7 100644 --- a/drivers/video/clps711xfb.c +++ b/drivers/video/clps711xfb.c @@ -366,11 +366,10 @@ int __init clps711xfb_init(void) if (fb_get_options("clps711xfb", NULL)) return -ENODEV; - cfb = kmalloc(sizeof(*cfb), GFP_KERNEL); + cfb = kzalloc(sizeof(*cfb), GFP_KERNEL); if (!cfb) goto out; - memset(cfb, 0, sizeof(*cfb)); strcpy(cfb->fix.id, "clps711x"); cfb->fbops = &clps7111fb_ops; diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig index d3b8a6be2916..49643969f9f8 100644 --- a/drivers/video/console/Kconfig +++ b/drivers/video/console/Kconfig @@ -118,6 +118,22 @@ config FRAMEBUFFER_CONSOLE help Low-level framebuffer-based console driver. +config FRAMEBUFFER_CONSOLE_DETECT_PRIMARY + bool "Map the console to the primary display device" + depends on FRAMEBUFFER_CONSOLE + default n + ---help--- + If this option is selected, the framebuffer console will + automatically select the primary display device (if the architecture + supports this feature). Otherwise, the framebuffer console will + always select the first framebuffer driver that is loaded. The latter + is the default behavior. + + You can always override the automatic selection of the primary device + by using the fbcon=map: boot option. + + If unsure, select n. + config FRAMEBUFFER_CONSOLE_ROTATION bool "Framebuffer Console Rotation" depends on FRAMEBUFFER_CONSOLE diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 73813c60d03a..decfdc8eb9cc 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -75,6 +75,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/crc32.h> /* For counting font checksums */ +#include <asm/fb.h> #include <asm/irq.h> #include <asm/system.h> #include <asm/uaccess.h> @@ -125,6 +126,8 @@ static int first_fb_vc; static int last_fb_vc = MAX_NR_CONSOLES - 1; static int fbcon_is_default = 1; static int fbcon_has_exited; +static int primary_device = -1; +static int map_override; /* font data */ static char fontname[40]; @@ -152,6 +155,7 @@ static int fbcon_set_origin(struct vc_data *); #define DEFAULT_CURSOR_BLINK_RATE (20) static int vbl_cursor_cnt; +static int fbcon_cursor_noblink; #define divides(a, b) ((!(a) || (b)%(a)) ? 0 : 1) @@ -188,16 +192,14 @@ static __inline__ void ypan_down(struct vc_data *vc, int count); static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int sx, int dy, int dx, int height, int width, u_int y_break); static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, - struct vc_data *vc); -static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, - int unit); + int unit); static void fbcon_redraw_move(struct vc_data *vc, struct display *p, int line, int count, int dy); static void fbcon_modechanged(struct fb_info *info); static void fbcon_set_all_vcs(struct fb_info *info); static void fbcon_start(void); static void fbcon_exit(void); -static struct class_device *fbcon_class_device; +static struct device *fbcon_device; #ifdef CONFIG_MAC /* @@ -441,7 +443,8 @@ static void fbcon_add_cursor_timer(struct fb_info *info) struct fbcon_ops *ops = info->fbcon_par; if ((!info->queue.func || info->queue.func == fb_flashcursor) && - !(ops->flags & FBCON_FLAGS_CURSOR_TIMER)) { + !(ops->flags & FBCON_FLAGS_CURSOR_TIMER) && + !fbcon_cursor_noblink) { if (!info->queue.func) INIT_WORK(&info->queue, fb_flashcursor); @@ -495,13 +498,17 @@ static int __init fb_console_setup(char *this_opt) if (!strncmp(options, "map:", 4)) { options += 4; - if (*options) + if (*options) { for (i = 0, j = 0; i < MAX_NR_CONSOLES; i++) { if (!options[j]) j = 0; con2fb_map_boot[i] = (options[j++]-'0') % FB_MAX; } + + map_override = 1; + } + return 1; } @@ -736,7 +743,9 @@ static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info, if (!err) { info->fbcon_par = ops; - set_blitting_type(vc, info); + + if (vc) + set_blitting_type(vc, info); } if (err) { @@ -798,11 +807,7 @@ static void con2fb_init_display(struct vc_data *vc, struct fb_info *info, ops->flags |= FBCON_FLAGS_INIT; ops->graphics = 0; - - if (vc) - fbcon_set_disp(info, &info->var, vc); - else - fbcon_preset_disp(info, &info->var, unit); + fbcon_set_disp(info, &info->var, unit); if (show_logo) { struct vc_data *fg_vc = vc_cons[fg_console].d; @@ -1107,6 +1112,9 @@ static void fbcon_init(struct vc_data *vc, int init) if (var_to_display(p, &info->var, info)) return; + if (!info->fbcon_par) + con2fb_acquire_newinfo(vc, info, vc->vc_num, -1); + /* If we are not the first console on this fb, copy the font from that console */ t = &fb_display[fg_console]; @@ -1349,6 +1357,11 @@ static void fbcon_cursor(struct vc_data *vc, int mode) if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1) return; + if (vc->vc_cursor_type & 0x10) + fbcon_del_cursor_timer(info); + else + fbcon_add_cursor_timer(info); + ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; if (mode & CM_SOFTBACK) { mode &= ~CM_SOFTBACK; @@ -1368,36 +1381,29 @@ static int scrollback_phys_max = 0; static int scrollback_max = 0; static int scrollback_current = 0; -/* - * If no vc is existent yet, just set struct display - */ -static void fbcon_preset_disp(struct fb_info *info, struct fb_var_screeninfo *var, - int unit) -{ - struct display *p = &fb_display[unit]; - struct display *t = &fb_display[fg_console]; - - if (var_to_display(p, var, info)) - return; - - p->fontdata = t->fontdata; - p->userfont = t->userfont; - if (p->userfont) - REFCOUNT(p->fontdata)++; -} - static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, - struct vc_data *vc) + int unit) { - struct display *p = &fb_display[vc->vc_num], *t; - struct vc_data **default_mode = vc->vc_display_fg; - struct vc_data *svc = *default_mode; + struct display *p, *t; + struct vc_data **default_mode, *vc; + struct vc_data *svc; struct fbcon_ops *ops = info->fbcon_par; int rows, cols, charcnt = 256; + p = &fb_display[unit]; + if (var_to_display(p, var, info)) return; + + vc = vc_cons[unit].d; + + if (!vc) + return; + + default_mode = vc->vc_display_fg; + svc = *default_mode; t = &fb_display[svc->vc_num]; + if (!vc->vc_font.data) { vc->vc_font.data = (void *)(p->fontdata = t->fontdata); vc->vc_font.width = (*default_mode)->vc_font.width; @@ -1704,6 +1710,56 @@ static void fbcon_redraw_move(struct vc_data *vc, struct display *p, } } +static void fbcon_redraw_blit(struct vc_data *vc, struct fb_info *info, + struct display *p, int line, int count, int ycount) +{ + int offset = ycount * vc->vc_cols; + unsigned short *d = (unsigned short *) + (vc->vc_origin + vc->vc_size_row * line); + unsigned short *s = d + offset; + struct fbcon_ops *ops = info->fbcon_par; + + while (count--) { + unsigned short *start = s; + unsigned short *le = advance_row(s, 1); + unsigned short c; + int x = 0; + + do { + c = scr_readw(s); + + if (c == scr_readw(d)) { + if (s > start) { + ops->bmove(vc, info, line + ycount, x, + line, x, 1, s-start); + x += s - start + 1; + start = s + 1; + } else { + x++; + start++; + } + } + + scr_writew(c, d); + console_conditional_schedule(); + s++; + d++; + } while (s < le); + if (s > start) + ops->bmove(vc, info, line + ycount, x, line, x, 1, + s-start); + console_conditional_schedule(); + if (ycount > 0) + line++; + else { + line--; + /* NOTE: We subtract two lines from these pointers */ + s -= vc->vc_size_row; + d -= vc->vc_size_row; + } + } +} + static void fbcon_redraw(struct vc_data *vc, struct display *p, int line, int count, int offset) { @@ -1789,7 +1845,6 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, { struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; struct display *p = &fb_display[vc->vc_num]; - struct fbcon_ops *ops = info->fbcon_par; int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; if (fbcon_is_inactive(vc, info)) @@ -1813,10 +1868,15 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, goto redraw_up; switch (p->scrollmode) { case SCROLL_MOVE: - ops->bmove(vc, info, t + count, 0, t, 0, - b - t - count, vc->vc_cols); - ops->clear(vc, info, b - count, 0, count, - vc->vc_cols); + fbcon_redraw_blit(vc, info, p, t, b - t - count, + count); + fbcon_clear(vc, b - count, 0, count, vc->vc_cols); + scr_memsetw((unsigned short *) (vc->vc_origin + + vc->vc_size_row * + (b - count)), + vc->vc_video_erase_char, + vc->vc_size_row * count); + return 1; break; case SCROLL_WRAP_MOVE: @@ -1899,9 +1959,15 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, goto redraw_down; switch (p->scrollmode) { case SCROLL_MOVE: - ops->bmove(vc, info, t, 0, t + count, 0, - b - t - count, vc->vc_cols); - ops->clear(vc, info, t, 0, count, vc->vc_cols); + fbcon_redraw_blit(vc, info, p, b - 1, b - t - count, + -count); + fbcon_clear(vc, t, 0, count, vc->vc_cols); + scr_memsetw((unsigned short *) (vc->vc_origin + + vc->vc_size_row * + t), + vc->vc_video_erase_char, + vc->vc_size_row * count); + return 1; break; case SCROLL_WRAP_MOVE: @@ -2937,9 +3003,48 @@ static int fbcon_mode_deleted(struct fb_info *info, return found; } -static int fbcon_fb_unregistered(int idx) +#ifdef CONFIG_VT_HW_CONSOLE_BINDING +static int fbcon_unbind(void) { - int i; + int ret; + + ret = unbind_con_driver(&fb_con, first_fb_vc, last_fb_vc, + fbcon_is_default); + return ret; +} +#else +static inline int fbcon_unbind(void) +{ + return -EINVAL; +} +#endif /* CONFIG_VT_HW_CONSOLE_BINDING */ + +static int fbcon_fb_unbind(int idx) +{ + int i, new_idx = -1, ret = 0; + + for (i = first_fb_vc; i <= last_fb_vc; i++) { + if (con2fb_map[i] != idx && + con2fb_map[i] != -1) { + new_idx = i; + break; + } + } + + if (new_idx != -1) { + for (i = first_fb_vc; i <= last_fb_vc; i++) { + if (con2fb_map[i] == idx) + set_con2fb_map(i, new_idx, 0); + } + } else + ret = fbcon_unbind(); + + return ret; +} + +static int fbcon_fb_unregistered(struct fb_info *info) +{ + int i, idx = info->node; for (i = first_fb_vc; i <= last_fb_vc; i++) { if (con2fb_map[i] == idx) @@ -2967,12 +3072,48 @@ static int fbcon_fb_unregistered(int idx) if (!num_registered_fb) unregister_con_driver(&fb_con); + + if (primary_device == idx) + primary_device = -1; + return 0; } -static int fbcon_fb_registered(int idx) +#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY +static void fbcon_select_primary(struct fb_info *info) { - int ret = 0, i; + if (!map_override && primary_device == -1 && + fb_is_primary_device(info)) { + int i; + + printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n", + info->fix.id, info->node); + primary_device = info->node; + + for (i = first_fb_vc; i <= last_fb_vc; i++) + con2fb_map_boot[i] = primary_device; + + if (con_is_bound(&fb_con)) { + printk(KERN_INFO "fbcon: Remapping primary device, " + "fb%i, to tty %i-%i\n", info->node, + first_fb_vc + 1, last_fb_vc + 1); + info_idx = primary_device; + } + } + +} +#else +static inline void fbcon_select_primary(struct fb_info *info) +{ + return; +} +#endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */ + +static int fbcon_fb_registered(struct fb_info *info) +{ + int ret = 0, i, idx = info->node; + + fbcon_select_primary(info); if (info_idx == -1) { for (i = first_fb_vc; i <= last_fb_vc; i++) { @@ -2986,8 +3127,7 @@ static int fbcon_fb_registered(int idx) ret = fbcon_takeover(1); } else { for (i = first_fb_vc; i <= last_fb_vc; i++) { - if (con2fb_map_boot[i] == idx && - con2fb_map[i] == -1) + if (con2fb_map_boot[i] == idx) set_con2fb_map(i, idx, 0); } } @@ -3034,12 +3174,7 @@ static void fbcon_new_modelist(struct fb_info *info) mode = fb_find_nearest_mode(fb_display[i].mode, &info->modelist); fb_videomode_to_var(&var, mode); - - if (vc) - fbcon_set_disp(info, &var, vc); - else - fbcon_preset_disp(info, &var, i); - + fbcon_set_disp(info, &var, vc->vc_num); } } @@ -3114,11 +3249,14 @@ static int fbcon_event_notify(struct notifier_block *self, mode = event->data; ret = fbcon_mode_deleted(info, mode); break; + case FB_EVENT_FB_UNBIND: + ret = fbcon_fb_unbind(info->node); + break; case FB_EVENT_FB_REGISTERED: - ret = fbcon_fb_registered(info->node); + ret = fbcon_fb_registered(info); break; case FB_EVENT_FB_UNREGISTERED: - ret = fbcon_fb_unregistered(info->node); + ret = fbcon_fb_unregistered(info); break; case FB_EVENT_SET_CONSOLE_MAP: con2fb = event->data; @@ -3179,8 +3317,9 @@ static struct notifier_block fbcon_event_notifier = { .notifier_call = fbcon_event_notify, }; -static ssize_t store_rotate(struct class_device *class_device, - const char *buf, size_t count) +static ssize_t store_rotate(struct device *device, + struct device_attribute *attr, const char *buf, + size_t count) { struct fb_info *info; int rotate, idx; @@ -3203,8 +3342,9 @@ err: return count; } -static ssize_t store_rotate_all(struct class_device *class_device, - const char *buf, size_t count) +static ssize_t store_rotate_all(struct device *device, + struct device_attribute *attr,const char *buf, + size_t count) { struct fb_info *info; int rotate, idx; @@ -3227,7 +3367,8 @@ err: return count; } -static ssize_t show_rotate(struct class_device *class_device, char *buf) +static ssize_t show_rotate(struct device *device, + struct device_attribute *attr,char *buf) { struct fb_info *info; int rotate = 0, idx; @@ -3248,20 +3389,86 @@ err: return snprintf(buf, PAGE_SIZE, "%d\n", rotate); } -static struct class_device_attribute class_device_attrs[] = { +static ssize_t show_cursor_blink(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct fb_info *info; + struct fbcon_ops *ops; + int idx, blink = -1; + + if (fbcon_has_exited) + return 0; + + acquire_console_sem(); + idx = con2fb_map[fg_console]; + + if (idx == -1 || registered_fb[idx] == NULL) + goto err; + + info = registered_fb[idx]; + ops = info->fbcon_par; + + if (!ops) + goto err; + + blink = (ops->flags & FBCON_FLAGS_CURSOR_TIMER) ? 1 : 0; +err: + release_console_sem(); + return snprintf(buf, PAGE_SIZE, "%d\n", blink); +} + +static ssize_t store_cursor_blink(struct device *device, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fb_info *info; + int blink, idx; + char **last = NULL; + + if (fbcon_has_exited) + return count; + + acquire_console_sem(); + idx = con2fb_map[fg_console]; + + if (idx == -1 || registered_fb[idx] == NULL) + goto err; + + info = registered_fb[idx]; + + if (!info->fbcon_par) + goto err; + + blink = simple_strtoul(buf, last, 0); + + if (blink) { + fbcon_cursor_noblink = 0; + fbcon_add_cursor_timer(info); + } else { + fbcon_cursor_noblink = 1; + fbcon_del_cursor_timer(info); + } + +err: + release_console_sem(); + return count; +} + +static struct device_attribute device_attrs[] = { __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all), + __ATTR(cursor_blink, S_IRUGO|S_IWUSR, show_cursor_blink, + store_cursor_blink), }; -static int fbcon_init_class_device(void) +static int fbcon_init_device(void) { int i, error = 0; fbcon_has_sysfs = 1; - for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) { - error = class_device_create_file(fbcon_class_device, - &class_device_attrs[i]); + for (i = 0; i < ARRAY_SIZE(device_attrs); i++) { + error = device_create_file(fbcon_device, &device_attrs[i]); if (error) break; @@ -3269,8 +3476,7 @@ static int fbcon_init_class_device(void) if (error) { while (--i >= 0) - class_device_remove_file(fbcon_class_device, - &class_device_attrs[i]); + device_remove_file(fbcon_device, &device_attrs[i]); fbcon_has_sysfs = 0; } @@ -3356,16 +3562,15 @@ static int __init fb_console_init(void) acquire_console_sem(); fb_register_client(&fbcon_event_notifier); - fbcon_class_device = - class_device_create(fb_class, NULL, MKDEV(0, 0), NULL, "fbcon"); + fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), "fbcon"); - if (IS_ERR(fbcon_class_device)) { - printk(KERN_WARNING "Unable to create class_device " + if (IS_ERR(fbcon_device)) { + printk(KERN_WARNING "Unable to create device " "for fbcon; errno = %ld\n", - PTR_ERR(fbcon_class_device)); - fbcon_class_device = NULL; + PTR_ERR(fbcon_device)); + fbcon_device = NULL; } else - fbcon_init_class_device(); + fbcon_init_device(); for (i = 0; i < MAX_NR_CONSOLES; i++) con2fb_map[i] = -1; @@ -3379,14 +3584,13 @@ module_init(fb_console_init); #ifdef MODULE -static void __exit fbcon_deinit_class_device(void) +static void __exit fbcon_deinit_device(void) { int i; if (fbcon_has_sysfs) { - for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) - class_device_remove_file(fbcon_class_device, - &class_device_attrs[i]); + for (i = 0; i < ARRAY_SIZE(device_attrs); i++) + device_remove_file(fbcon_device, &device_attrs[i]); fbcon_has_sysfs = 0; } @@ -3396,8 +3600,8 @@ static void __exit fb_console_exit(void) { acquire_console_sem(); fb_unregister_client(&fbcon_event_notifier); - fbcon_deinit_class_device(); - class_device_destroy(fb_class, MKDEV(0, 0)); + fbcon_deinit_device(); + device_destroy(fb_class, MKDEV(0, 0)); fbcon_exit(); release_console_sem(); unregister_con_driver(&fb_con); diff --git a/drivers/video/controlfb.c b/drivers/video/controlfb.c index 8b762739b1e0..b0be7eac32d8 100644 --- a/drivers/video/controlfb.c +++ b/drivers/video/controlfb.c @@ -94,7 +94,7 @@ static inline int VAR_MATCH(struct fb_var_screeninfo *x, struct fb_var_screeninf struct fb_info_control { struct fb_info info; struct fb_par_control par; - u32 pseudo_palette[17]; + u32 pseudo_palette[16]; struct cmap_regs __iomem *cmap_regs; unsigned long cmap_regs_phys; diff --git a/drivers/video/cyber2000fb.c b/drivers/video/cyber2000fb.c index 7a6eeda5ae9a..30ede6e8830f 100644 --- a/drivers/video/cyber2000fb.c +++ b/drivers/video/cyber2000fb.c @@ -1221,11 +1221,10 @@ cyberpro_alloc_fb_info(unsigned int id, char *name) { struct cfb_info *cfb; - cfb = kmalloc(sizeof(struct cfb_info), GFP_KERNEL); + cfb = kzalloc(sizeof(struct cfb_info), GFP_KERNEL); if (!cfb) return NULL; - memset(cfb, 0, sizeof(struct cfb_info)); cfb->id = id; diff --git a/drivers/video/cyblafb.c b/drivers/video/cyblafb.c index 94a66c2d2cf5..e23324d10be2 100644 --- a/drivers/video/cyblafb.c +++ b/drivers/video/cyblafb.c @@ -1068,15 +1068,18 @@ static int cyblafb_setcolreg(unsigned regno, unsigned red, unsigned green, out8(0x3C9, green >> 10); out8(0x3C9, blue >> 10); - } else if (bpp == 16) // RGB 565 - ((u32 *) info->pseudo_palette)[regno] = - (red & 0xF800) | - ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11); - else if (bpp == 32) // ARGB 8888 - ((u32 *) info->pseudo_palette)[regno] = - ((transp & 0xFF00) << 16) | - ((red & 0xFF00) << 8) | - ((green & 0xFF00)) | ((blue & 0xFF00) >> 8); + } else if (regno < 16) { + if (bpp == 16) // RGB 565 + ((u32 *) info->pseudo_palette)[regno] = + (red & 0xF800) | + ((green & 0xFC00) >> 5) | + ((blue & 0xF800) >> 11); + else if (bpp == 32) // ARGB 8888 + ((u32 *) info->pseudo_palette)[regno] = + ((transp & 0xFF00) << 16) | + ((red & 0xFF00) << 8) | + ((green & 0xFF00)) | ((blue & 0xFF00) >> 8); + } return 0; } diff --git a/drivers/video/epson1355fb.c b/drivers/video/epson1355fb.c index ca2c54ce508e..33be46ccb54f 100644 --- a/drivers/video/epson1355fb.c +++ b/drivers/video/epson1355fb.c @@ -63,23 +63,12 @@ struct epson1355_par { unsigned long reg_addr; + u32 pseudo_palette[16]; }; /* ------------------------------------------------------------------------- */ -#ifdef CONFIG_SUPERH - -static inline u8 epson1355_read_reg(int index) -{ - return ctrl_inb(par.reg_addr + index); -} - -static inline void epson1355_write_reg(u8 data, int index) -{ - ctrl_outb(data, par.reg_addr + index); -} - -#elif defined(CONFIG_ARM) +#if defined(CONFIG_ARM) # ifdef CONFIG_ARCH_CEIVA # include <asm/arch/hardware.h> @@ -289,7 +278,7 @@ static int epson1355fb_blank(int blank_mode, struct fb_info *info) struct epson1355_par *par = info->par; switch (blank_mode) { - case FB_BLANK_UNBLANKING: + case FB_BLANK_UNBLANK: case FB_BLANK_NORMAL: lcd_enable(par, 1); backlight_enable(1); @@ -635,7 +624,7 @@ int __init epson1355fb_probe(struct platform_device *dev) goto bail; } - info = framebuffer_alloc(sizeof(struct epson1355_par) + sizeof(u32) * 256, &dev->dev); + info = framebuffer_alloc(sizeof(struct epson1355_par), &dev->dev); if (!info) { rc = -ENOMEM; goto bail; @@ -648,7 +637,7 @@ int __init epson1355fb_probe(struct platform_device *dev) rc = -ENOMEM; goto bail; } - info->pseudo_palette = (void *)(default_par + 1); + info->pseudo_palette = default_par->pseudo_palette; info->screen_base = ioremap(EPSON1355FB_FB_PHYS, EPSON1355FB_FB_LEN); if (!info->screen_base) { diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 38c2e2558f5e..215ac579f901 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -33,17 +33,10 @@ #include <linux/err.h> #include <linux/device.h> #include <linux/efi.h> +#include <linux/fb.h> -#if defined(__mc68000__) || defined(CONFIG_APUS) -#include <asm/setup.h> -#endif +#include <asm/fb.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/page.h> -#include <asm/pgtable.h> - -#include <linux/fb.h> /* * Frame buffer device initialization and setup routines @@ -411,10 +404,146 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, } } +static int fb_show_logo_line(struct fb_info *info, int rotate, + const struct linux_logo *logo, int y, + unsigned int n) +{ + u32 *palette = NULL, *saved_pseudo_palette = NULL; + unsigned char *logo_new = NULL, *logo_rotate = NULL; + struct fb_image image; + + /* Return if the frame buffer is not mapped or suspended */ + if (logo == NULL || info->state != FBINFO_STATE_RUNNING || + info->flags & FBINFO_MODULE) + return 0; + + image.depth = 8; + image.data = logo->data; + + if (fb_logo.needs_cmapreset) + fb_set_logocmap(info, logo); + + if (fb_logo.needs_truepalette || + fb_logo.needs_directpalette) { + palette = kmalloc(256 * 4, GFP_KERNEL); + if (palette == NULL) + return 0; + + if (fb_logo.needs_truepalette) + fb_set_logo_truepalette(info, logo, palette); + else + fb_set_logo_directpalette(info, logo, palette); + + saved_pseudo_palette = info->pseudo_palette; + info->pseudo_palette = palette; + } + + if (fb_logo.depth <= 4) { + logo_new = kmalloc(logo->width * logo->height, GFP_KERNEL); + if (logo_new == NULL) { + kfree(palette); + if (saved_pseudo_palette) + info->pseudo_palette = saved_pseudo_palette; + return 0; + } + image.data = logo_new; + fb_set_logo(info, logo, logo_new, fb_logo.depth); + } + + image.dx = 0; + image.dy = y; + image.width = logo->width; + image.height = logo->height; + + if (rotate) { + logo_rotate = kmalloc(logo->width * + logo->height, GFP_KERNEL); + if (logo_rotate) + fb_rotate_logo(info, logo_rotate, &image, rotate); + } + + fb_do_show_logo(info, &image, rotate, n); + + kfree(palette); + if (saved_pseudo_palette != NULL) + info->pseudo_palette = saved_pseudo_palette; + kfree(logo_new); + kfree(logo_rotate); + return logo->height; +} + + +#ifdef CONFIG_FB_LOGO_EXTRA + +#define FB_LOGO_EX_NUM_MAX 10 +static struct logo_data_extra { + const struct linux_logo *logo; + unsigned int n; +} fb_logo_ex[FB_LOGO_EX_NUM_MAX]; +static unsigned int fb_logo_ex_num; + +void fb_append_extra_logo(const struct linux_logo *logo, unsigned int n) +{ + if (!n || fb_logo_ex_num == FB_LOGO_EX_NUM_MAX) + return; + + fb_logo_ex[fb_logo_ex_num].logo = logo; + fb_logo_ex[fb_logo_ex_num].n = n; + fb_logo_ex_num++; +} + +static int fb_prepare_extra_logos(struct fb_info *info, unsigned int height, + unsigned int yres) +{ + unsigned int i; + + /* FIXME: logo_ex supports only truecolor fb. */ + if (info->fix.visual != FB_VISUAL_TRUECOLOR) + fb_logo_ex_num = 0; + + for (i = 0; i < fb_logo_ex_num; i++) { + height += fb_logo_ex[i].logo->height; + if (height > yres) { + height -= fb_logo_ex[i].logo->height; + fb_logo_ex_num = i; + break; + } + } + return height; +} + +static int fb_show_extra_logos(struct fb_info *info, int y, int rotate) +{ + unsigned int i; + + for (i = 0; i < fb_logo_ex_num; i++) + y += fb_show_logo_line(info, rotate, + fb_logo_ex[i].logo, y, fb_logo_ex[i].n); + + return y; +} + +#else /* !CONFIG_FB_LOGO_EXTRA */ + +static inline int fb_prepare_extra_logos(struct fb_info *info, + unsigned int height, + unsigned int yres) +{ + return height; +} + +static inline int fb_show_extra_logos(struct fb_info *info, int y, int rotate) +{ + return y; +} + +#endif /* CONFIG_FB_LOGO_EXTRA */ + + int fb_prepare_logo(struct fb_info *info, int rotate) { int depth = fb_get_color_depth(&info->var, &info->fix); - int yres; + unsigned int yres; memset(&fb_logo, 0, sizeof(struct logo_data)); @@ -456,7 +585,7 @@ int fb_prepare_logo(struct fb_info *info, int rotate) if (!fb_logo.logo) { return 0; } - + if (rotate == FB_ROTATE_UR || rotate == FB_ROTATE_UD) yres = info->var.yres; else @@ -473,75 +602,20 @@ int fb_prepare_logo(struct fb_info *info, int rotate) else if (fb_logo.logo->type == LINUX_LOGO_VGA16) fb_logo.depth = 4; else - fb_logo.depth = 1; - return fb_logo.logo->height; + fb_logo.depth = 1; + + return fb_prepare_extra_logos(info, fb_logo.logo->height, yres); } int fb_show_logo(struct fb_info *info, int rotate) { - u32 *palette = NULL, *saved_pseudo_palette = NULL; - unsigned char *logo_new = NULL, *logo_rotate = NULL; - struct fb_image image; - - /* Return if the frame buffer is not mapped or suspended */ - if (fb_logo.logo == NULL || info->state != FBINFO_STATE_RUNNING || - info->flags & FBINFO_MODULE) - return 0; - - image.depth = 8; - image.data = fb_logo.logo->data; - - if (fb_logo.needs_cmapreset) - fb_set_logocmap(info, fb_logo.logo); - - if (fb_logo.needs_truepalette || - fb_logo.needs_directpalette) { - palette = kmalloc(256 * 4, GFP_KERNEL); - if (palette == NULL) - return 0; - - if (fb_logo.needs_truepalette) - fb_set_logo_truepalette(info, fb_logo.logo, palette); - else - fb_set_logo_directpalette(info, fb_logo.logo, palette); - - saved_pseudo_palette = info->pseudo_palette; - info->pseudo_palette = palette; - } - - if (fb_logo.depth <= 4) { - logo_new = kmalloc(fb_logo.logo->width * fb_logo.logo->height, - GFP_KERNEL); - if (logo_new == NULL) { - kfree(palette); - if (saved_pseudo_palette) - info->pseudo_palette = saved_pseudo_palette; - return 0; - } - image.data = logo_new; - fb_set_logo(info, fb_logo.logo, logo_new, fb_logo.depth); - } + int y; - image.dx = 0; - image.dy = 0; - image.width = fb_logo.logo->width; - image.height = fb_logo.logo->height; + y = fb_show_logo_line(info, rotate, fb_logo.logo, 0, + num_online_cpus()); + y = fb_show_extra_logos(info, y, rotate); - if (rotate) { - logo_rotate = kmalloc(fb_logo.logo->width * - fb_logo.logo->height, GFP_KERNEL); - if (logo_rotate) - fb_rotate_logo(info, logo_rotate, &image, rotate); - } - - fb_do_show_logo(info, &image, rotate, num_online_cpus()); - - kfree(palette); - if (saved_pseudo_palette != NULL) - info->pseudo_palette = saved_pseudo_palette; - kfree(logo_new); - kfree(logo_rotate); - return fb_logo.logo->height; + return y; } #else int fb_prepare_logo(struct fb_info *info, int rotate) { return 0; } @@ -1155,17 +1229,15 @@ fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } #endif -static int +static int fb_mmap(struct file *file, struct vm_area_struct * vma) { int fbidx = iminor(file->f_path.dentry->d_inode); struct fb_info *info = registered_fb[fbidx]; struct fb_ops *fb = info->fbops; unsigned long off; -#if !defined(__sparc__) || defined(__sparc_v9__) unsigned long start; u32 len; -#endif if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) return -EINVAL; @@ -1180,12 +1252,6 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) return res; } -#if defined(__sparc__) && !defined(__sparc_v9__) - /* Should never get here, all fb drivers should have their own - mmap routines */ - return -EINVAL; -#else - /* !sparc32... */ lock_kernel(); /* frame buffer memory */ @@ -1209,50 +1275,11 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) vma->vm_pgoff = off >> PAGE_SHIFT; /* This is an IO map - tell maydump to skip this VMA */ vma->vm_flags |= VM_IO | VM_RESERVED; -#if defined(__mc68000__) -#if defined(CONFIG_SUN3) - pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE; -#elif defined(CONFIG_MMU) - if (CPU_IS_020_OR_030) - pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE030; - if (CPU_IS_040_OR_060) { - pgprot_val(vma->vm_page_prot) &= _CACHEMASK040; - /* Use no-cache mode, serialized */ - pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE_S; - } -#endif -#elif defined(__powerpc__) - vma->vm_page_prot = phys_mem_access_prot(file, off >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, - vma->vm_page_prot); -#elif defined(__alpha__) - /* Caching is off in the I/O space quadrant by design. */ -#elif defined(__i386__) || defined(__x86_64__) - if (boot_cpu_data.x86 > 3) - pgprot_val(vma->vm_page_prot) |= _PAGE_PCD; -#elif defined(__mips__) || defined(__sparc_v9__) - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); -#elif defined(__hppa__) - pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE; -#elif defined(__arm__) || defined(__sh__) || defined(__m32r__) - vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); -#elif defined(__avr32__) - vma->vm_page_prot = __pgprot((pgprot_val(vma->vm_page_prot) - & ~_PAGE_CACHABLE) - | (_PAGE_BUFFER | _PAGE_DIRTY)); -#elif defined(__ia64__) - if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start)) - vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); - else - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); -#else -#warning What do we have to do here?? -#endif + fb_pgprotect(file, vma, off); if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot)) return -EAGAIN; return 0; -#endif /* !sparc32 */ } static int @@ -1388,17 +1415,34 @@ register_framebuffer(struct fb_info *fb_info) * * Returns negative errno on error, or zero for success. * + * This function will also notify the framebuffer console + * to release the driver. + * + * This is meant to be called within a driver's module_exit() + * function. If this is called outside module_exit(), ensure + * that the driver implements fb_open() and fb_release() to + * check that no processes are using the device. */ int unregister_framebuffer(struct fb_info *fb_info) { struct fb_event event; - int i; + int i, ret = 0; i = fb_info->node; - if (!registered_fb[i]) - return -EINVAL; + if (!registered_fb[i]) { + ret = -EINVAL; + goto done; + } + + event.info = fb_info; + ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event); + + if (ret) { + ret = -EINVAL; + goto done; + } if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT)) @@ -1410,7 +1454,8 @@ unregister_framebuffer(struct fb_info *fb_info) device_destroy(fb_class, MKDEV(FB_MAJOR, i)); event.info = fb_info; fb_notifier_call_chain(FB_EVENT_FB_UNREGISTERED, &event); - return 0; +done: + return ret; } /** diff --git a/drivers/video/fm2fb.c b/drivers/video/fm2fb.c index 70ff55b14596..6c91c61cdb63 100644 --- a/drivers/video/fm2fb.c +++ b/drivers/video/fm2fb.c @@ -195,13 +195,15 @@ static int fm2fb_blank(int blank, struct fb_info *info) static int fm2fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *info) { - if (regno > info->cmap.len) - return 1; - red >>= 8; - green >>= 8; - blue >>= 8; + if (regno < 16) { + red >>= 8; + green >>= 8; + blue >>= 8; + + ((u32*)(info->pseudo_palette))[regno] = (red << 16) | + (green << 8) | blue; + } - ((u32*)(info->pseudo_palette))[regno] = (red << 16) | (green << 8) | blue; return 0; } @@ -237,7 +239,7 @@ static int __devinit fm2fb_probe(struct zorro_dev *z, if (!zorro_request_device(z,"fm2fb")) return -ENXIO; - info = framebuffer_alloc(256 * sizeof(u32), &z->dev); + info = framebuffer_alloc(16 * sizeof(u32), &z->dev); if (!info) { zorro_release_device(z); return -ENOMEM; diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c index bf0e60b5a3b6..b9b572b293d4 100644 --- a/drivers/video/gbefb.c +++ b/drivers/video/gbefb.c @@ -86,7 +86,7 @@ static int gbe_revision; static int ypan, ywrap; -static uint32_t pseudo_palette[256]; +static uint32_t pseudo_palette[16]; static char *mode_option __initdata = NULL; @@ -854,8 +854,7 @@ static int gbefb_setcolreg(unsigned regno, unsigned red, unsigned green, green >>= 8; blue >>= 8; - switch (info->var.bits_per_pixel) { - case 8: + if (info->var.bits_per_pixel <= 8) { /* wait for the color map FIFO to have a free entry */ for (i = 0; i < 1000 && gbe->cm_fifo >= 63; i++) udelay(10); @@ -864,23 +863,25 @@ static int gbefb_setcolreg(unsigned regno, unsigned red, unsigned green, return 1; } gbe->cmap[regno] = (red << 24) | (green << 16) | (blue << 8); - break; - case 15: - case 16: - red >>= 3; - green >>= 3; - blue >>= 3; - pseudo_palette[regno] = - (red << info->var.red.offset) | - (green << info->var.green.offset) | - (blue << info->var.blue.offset); - break; - case 32: - pseudo_palette[regno] = - (red << info->var.red.offset) | - (green << info->var.green.offset) | - (blue << info->var.blue.offset); - break; + } else if (regno < 16) { + switch (info->var.bits_per_pixel) { + case 15: + case 16: + red >>= 3; + green >>= 3; + blue >>= 3; + pseudo_palette[regno] = + (red << info->var.red.offset) | + (green << info->var.green.offset) | + (blue << info->var.blue.offset); + break; + case 32: + pseudo_palette[regno] = + (red << info->var.red.offset) | + (green << info->var.green.offset) | + (blue << info->var.blue.offset); + break; + } } return 0; diff --git a/drivers/video/i810/i810.h b/drivers/video/i810/i810.h index 889e4ea5edc1..328ae6c673ec 100644 --- a/drivers/video/i810/i810.h +++ b/drivers/video/i810/i810.h @@ -266,7 +266,7 @@ struct i810fb_par { struct i810fb_i2c_chan chan[3]; struct mutex open_lock; unsigned int use_count; - u32 pseudo_palette[17]; + u32 pseudo_palette[16]; unsigned long mmio_start_phys; u8 __iomem *mmio_start_virtual; u8 *edid; diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h index 80b94c19a9fa..6148300fadd6 100644 --- a/drivers/video/intelfb/intelfb.h +++ b/drivers/video/intelfb/intelfb.h @@ -302,7 +302,7 @@ struct intelfb_info { u32 ring_lockup; /* palette */ - u32 pseudo_palette[17]; + u32 pseudo_palette[16]; /* chip info */ int pci_chipset; diff --git a/drivers/video/logo/Kconfig b/drivers/video/logo/Kconfig index 9397bcef3018..9de1c114f809 100644 --- a/drivers/video/logo/Kconfig +++ b/drivers/video/logo/Kconfig @@ -10,6 +10,11 @@ menuconfig LOGO if LOGO +config FB_LOGO_EXTRA + bool + depends on FB=y + default y if SPU_BASE + config LOGO_LINUX_MONO bool "Standard black and white Linux logo" default y diff --git a/drivers/video/logo/Makefile b/drivers/video/logo/Makefile index b985dfad6c63..a5fc4edf84e6 100644 --- a/drivers/video/logo/Makefile +++ b/drivers/video/logo/Makefile @@ -14,6 +14,8 @@ obj-$(CONFIG_LOGO_SUPERH_VGA16) += logo_superh_vga16.o obj-$(CONFIG_LOGO_SUPERH_CLUT224) += logo_superh_clut224.o obj-$(CONFIG_LOGO_M32R_CLUT224) += logo_m32r_clut224.o +obj-$(CONFIG_SPU_BASE) += logo_spe_clut224.o + # How to generate logo's # Use logo-cfiles to retrieve list of .c files to be built diff --git a/drivers/video/logo/logo_spe_clut224.ppm b/drivers/video/logo/logo_spe_clut224.ppm new file mode 100644 index 000000000000..d36ad624a79c --- /dev/null +++ b/drivers/video/logo/logo_spe_clut224.ppm @@ -0,0 +1,283 @@ +P3 +40 40 +255 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 6 6 6 +15 15 15 21 21 21 19 19 19 14 14 14 6 6 6 2 2 2 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 2 2 2 21 21 21 55 55 55 +56 56 56 54 54 54 53 53 53 60 60 60 56 56 56 25 25 25 +6 6 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 2 2 2 27 27 27 62 62 62 17 17 19 +2 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13 189 138 9 41 33 20 10 10 12 +30 30 31 23 23 24 5 5 8 2 2 6 2 2 6 2 2 6 +4 4 6 112 86 32 215 161 11 245 188 14 246 190 14 245 188 14 +239 182 13 228 170 11 189 142 35 104 96 81 48 48 49 17 17 17 +2 2 2 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 5 5 5 39 39 39 103 92 56 +141 109 44 175 122 13 187 136 12 189 138 9 207 152 19 228 170 11 +239 182 13 239 182 13 215 161 11 175 122 13 41 33 20 2 2 6 +15 15 17 20 20 22 20 20 22 20 20 22 20 20 22 8 8 10 +4 4 6 97 67 8 189 138 9 231 174 11 239 182 13 226 168 11 +189 138 9 126 107 64 59 59 59 21 21 21 5 5 5 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 5 5 5 17 17 17 +34 34 34 57 57 57 84 78 65 103 92 56 125 101 41 140 112 39 +175 122 13 175 122 13 175 122 13 97 67 8 72 67 58 84 78 65 +60 60 60 56 56 56 56 56 56 56 56 56 57 57 57 65 65 65 +86 86 86 95 73 34 175 122 13 187 136 12 187 136 12 175 122 13 +103 92 56 41 41 41 10 10 10 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +2 2 2 4 4 4 12 12 12 24 24 24 40 40 40 70 70 70 +86 77 61 95 73 34 88 72 41 72 67 58 36 36 36 10 10 10 +5 5 5 5 5 5 5 5 5 4 4 4 5 5 5 6 6 6 +22 22 22 61 61 59 88 72 41 112 86 32 112 86 32 84 78 65 +32 32 32 6 6 6 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 3 3 3 10 10 10 +21 21 21 33 33 33 31 31 31 16 16 16 2 2 2 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +2 2 2 12 12 12 30 30 31 40 40 40 32 32 32 16 16 16 +2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 diff --git a/drivers/video/macfb.c b/drivers/video/macfb.c index f7d647dda978..aa8c714d6245 100644 --- a/drivers/video/macfb.c +++ b/drivers/video/macfb.c @@ -170,7 +170,7 @@ static struct fb_fix_screeninfo macfb_fix = { }; static struct fb_info fb_info; -static u32 pseudo_palette[17]; +static u32 pseudo_palette[16]; static int inverse = 0; static int vidtest = 0; @@ -529,56 +529,63 @@ static int macfb_setcolreg(unsigned regno, unsigned red, unsigned green, if (regno >= fb_info->cmap.len) return 1; - switch (fb_info->var.bits_per_pixel) { - case 1: - /* We shouldn't get here */ - break; - case 2: - case 4: - case 8: - if (macfb_setpalette) - macfb_setpalette(regno, red, green, blue, fb_info); - else - return 1; - break; - case 16: - if (fb_info->var.red.offset == 10) { - /* 1:5:5:5 */ - ((u32*) (fb_info->pseudo_palette))[regno] = + if (fb_info->var.bits_per_pixel <= 8) { + switch (fb_info->var.bits_per_pixel) { + case 1: + /* We shouldn't get here */ + break; + case 2: + case 4: + case 8: + if (macfb_setpalette) + macfb_setpalette(regno, red, green, blue, + fb_info); + else + return 1; + break; + } + } else if (regno < 16) { + switch (fb_info->var.bits_per_pixel) { + case 16: + if (fb_info->var.red.offset == 10) { + /* 1:5:5:5 */ + ((u32*) (fb_info->pseudo_palette))[regno] = ((red & 0xf800) >> 1) | ((green & 0xf800) >> 6) | ((blue & 0xf800) >> 11) | ((transp != 0) << 15); - } else { - /* 0:5:6:5 */ - ((u32*) (fb_info->pseudo_palette))[regno] = + } else { + /* 0:5:6:5 */ + ((u32*) (fb_info->pseudo_palette))[regno] = ((red & 0xf800) ) | ((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11); + } + break; + /* I'm pretty sure that one or the other of these + doesn't exist on 68k Macs */ + case 24: + red >>= 8; + green >>= 8; + blue >>= 8; + ((u32 *)(fb_info->pseudo_palette))[regno] = + (red << fb_info->var.red.offset) | + (green << fb_info->var.green.offset) | + (blue << fb_info->var.blue.offset); + break; + case 32: + red >>= 8; + green >>= 8; + blue >>= 8; + ((u32 *)(fb_info->pseudo_palette))[regno] = + (red << fb_info->var.red.offset) | + (green << fb_info->var.green.offset) | + (blue << fb_info->var.blue.offset); + break; } - break; - /* I'm pretty sure that one or the other of these - doesn't exist on 68k Macs */ - case 24: - red >>= 8; - green >>= 8; - blue >>= 8; - ((u32 *)(fb_info->pseudo_palette))[regno] = - (red << fb_info->var.red.offset) | - (green << fb_info->var.green.offset) | - (blue << fb_info->var.blue.offset); - break; - case 32: - red >>= 8; - green >>= 8; - blue >>= 8; - ((u32 *)(fb_info->pseudo_palette))[regno] = - (red << fb_info->var.red.offset) | - (green << fb_info->var.green.offset) | - (blue << fb_info->var.blue.offset); - break; - } - return 0; + } + + return 0; } static struct fb_ops macfb_ops = { diff --git a/drivers/video/macmodes.c b/drivers/video/macmodes.c index ab2149531a04..083f60321ed8 100644 --- a/drivers/video/macmodes.c +++ b/drivers/video/macmodes.c @@ -369,9 +369,8 @@ EXPORT_SYMBOL(mac_map_monitor_sense); * */ -int __devinit mac_find_mode(struct fb_var_screeninfo *var, - struct fb_info *info, const char *mode_option, - unsigned int default_bpp) +int mac_find_mode(struct fb_var_screeninfo *var, struct fb_info *info, + const char *mode_option, unsigned int default_bpp) { const struct fb_videomode *db = NULL; unsigned int dbsize = 0; diff --git a/drivers/video/macmodes.h b/drivers/video/macmodes.h index babeb81f467d..b86ba08aac9e 100644 --- a/drivers/video/macmodes.h +++ b/drivers/video/macmodes.h @@ -55,10 +55,10 @@ extern int mac_vmode_to_var(int vmode, int cmode, extern int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode, int *cmode); extern int mac_map_monitor_sense(int sense); -extern int __devinit mac_find_mode(struct fb_var_screeninfo *var, - struct fb_info *info, - const char *mode_option, - unsigned int default_bpp); +extern int mac_find_mode(struct fb_var_screeninfo *var, + struct fb_info *info, + const char *mode_option, + unsigned int default_bpp); /* diff --git a/drivers/video/matrox/matroxfb_accel.c b/drivers/video/matrox/matroxfb_accel.c index c57aaadf410c..3660d2673bdc 100644 --- a/drivers/video/matrox/matroxfb_accel.c +++ b/drivers/video/matrox/matroxfb_accel.c @@ -91,7 +91,6 @@ static inline void matrox_cfb4_pal(u_int32_t* pal) { for (i = 0; i < 16; i++) { pal[i] = i * 0x11111111U; } - pal[i] = 0xFFFFFFFF; } static inline void matrox_cfb8_pal(u_int32_t* pal) { @@ -100,7 +99,6 @@ static inline void matrox_cfb8_pal(u_int32_t* pal) { for (i = 0; i < 16; i++) { pal[i] = i * 0x01010101U; } - pal[i] = 0x0F0F0F0F; } static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area); @@ -145,13 +143,10 @@ void matrox_cfbX_init(WPMINFO2) { ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit; } break; - case 16: if (ACCESS_FBINFO(fbcon).var.green.length == 5) { + case 16: if (ACCESS_FBINFO(fbcon).var.green.length == 5) maccess = 0xC0000001; - ACCESS_FBINFO(cmap[16]) = 0x7FFF7FFF; - } else { + else maccess = 0x40000001; - ACCESS_FBINFO(cmap[16]) = 0xFFFFFFFF; - } mopmode = M_OPMODE_16BPP; if (accel) { ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea; @@ -161,7 +156,6 @@ void matrox_cfbX_init(WPMINFO2) { break; case 24: maccess = 0x00000003; mopmode = M_OPMODE_24BPP; - ACCESS_FBINFO(cmap[16]) = 0xFFFFFFFF; if (accel) { ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea; ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect; @@ -170,7 +164,6 @@ void matrox_cfbX_init(WPMINFO2) { break; case 32: maccess = 0x00000002; mopmode = M_OPMODE_32BPP; - ACCESS_FBINFO(cmap[16]) = 0xFFFFFFFF; if (accel) { ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea; ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect; diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c index 886e475f22f2..86ca7b179000 100644 --- a/drivers/video/matrox/matroxfb_base.c +++ b/drivers/video/matrox/matroxfb_base.c @@ -679,6 +679,8 @@ static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green, mga_outb(M_DAC_VAL, blue); break; case 16: + if (regno >= 16) + break; { u_int16_t col = (red << ACCESS_FBINFO(fbcon).var.red.offset) | @@ -690,6 +692,8 @@ static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green, break; case 24: case 32: + if (regno >= 16) + break; ACCESS_FBINFO(cmap[regno]) = (red << ACCESS_FBINFO(fbcon).var.red.offset) | (green << ACCESS_FBINFO(fbcon).var.green.offset) | diff --git a/drivers/video/matrox/matroxfb_base.h b/drivers/video/matrox/matroxfb_base.h index 9c25c2f7966b..d59577c8de86 100644 --- a/drivers/video/matrox/matroxfb_base.h +++ b/drivers/video/matrox/matroxfb_base.h @@ -518,7 +518,7 @@ struct matrox_fb_info { dll:1; } memory; } values; - u_int32_t cmap[17]; + u_int32_t cmap[16]; }; #define info2minfo(info) container_of(info, struct matrox_fb_info, fbcon) diff --git a/drivers/video/matrox/matroxfb_crtc2.c b/drivers/video/matrox/matroxfb_crtc2.c index 03ae55b168ff..4b3344e03695 100644 --- a/drivers/video/matrox/matroxfb_crtc2.c +++ b/drivers/video/matrox/matroxfb_crtc2.c @@ -163,11 +163,6 @@ static void matroxfb_dh_disable(struct matroxfb_dh_fb_info* m2info) { ACCESS_FBINFO(hw).crtc2.ctl = 0x00000004; } -static void matroxfb_dh_cfbX_init(struct matroxfb_dh_fb_info* m2info) { - /* no acceleration for secondary head... */ - m2info->cmap[16] = 0xFFFFFFFF; -} - static void matroxfb_dh_pan_var(struct matroxfb_dh_fb_info* m2info, struct fb_var_screeninfo* var) { unsigned int pos; @@ -385,7 +380,6 @@ static int matroxfb_dh_set_par(struct fb_info* info) { } } up_read(&ACCESS_FBINFO(altout).lock); - matroxfb_dh_cfbX_init(m2info); } m2info->initialized = 1; return 0; diff --git a/drivers/video/matrox/matroxfb_crtc2.h b/drivers/video/matrox/matroxfb_crtc2.h index 177177609be7..1005582e843e 100644 --- a/drivers/video/matrox/matroxfb_crtc2.h +++ b/drivers/video/matrox/matroxfb_crtc2.h @@ -28,7 +28,7 @@ struct matroxfb_dh_fb_info { unsigned int interlaced:1; - u_int32_t cmap[17]; + u_int32_t cmap[16]; }; #endif /* __MATROXFB_CRTC2_H__ */ diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c index 5d29a26b8cdf..de0d755f9019 100644 --- a/drivers/video/matrox/matroxfb_maven.c +++ b/drivers/video/matrox/matroxfb_maven.c @@ -273,8 +273,11 @@ static int matroxfb_PLL_mavenclock(const struct matrox_pll_features2* pll, } } } + + /* if h2/post/in/feed have not been assigned, return zero (error) */ if (besth2 < 2) return 0; + dprintk(KERN_ERR "clk: %02X %02X %02X %d %d\n", *in, *feed, *post, fxtal, fwant); return fxtal * (*feed) / (*in) * ctl->den; } @@ -284,7 +287,7 @@ static unsigned int matroxfb_mavenclock(const struct matrox_pll_ctl* ctl, unsigned int* in, unsigned int* feed, unsigned int* post, unsigned int* htotal2) { unsigned int fvco; - unsigned int p; + unsigned int uninitialized_var(p); fvco = matroxfb_PLL_mavenclock(&maven1000_pll, ctl, htotal, vtotal, in, feed, &p, htotal2); if (!fvco) @@ -715,7 +718,9 @@ static int maven_find_exact_clocks(unsigned int ht, unsigned int vt, m->regs[0x82] = 0x81; for (x = 0; x < 8; x++) { - unsigned int a, b, c, h2; + unsigned int c; + unsigned int uninitialized_var(a), uninitialized_var(b), + uninitialized_var(h2); unsigned int h = ht + 2 + x; if (!matroxfb_mavenclock((m->mode == MATROXFB_OUTPUT_MODE_PAL) ? &maven_PAL : &maven_NTSC, h, vt, &a, &b, &c, &h2)) { diff --git a/drivers/video/nvidia/nv_hw.c b/drivers/video/nvidia/nv_hw.c index aff11bbf59a7..d1a10549f543 100644 --- a/drivers/video/nvidia/nv_hw.c +++ b/drivers/video/nvidia/nv_hw.c @@ -150,8 +150,7 @@ static void nvGetClocks(struct nvidia_par *par, unsigned int *MClk, M = pll & 0xFF; N = (pll >> 8) & 0xFF; if (((par->Chipset & 0xfff0) == 0x0290) || - ((par->Chipset & 0xfff0) == 0x0390) || - ((par->Chipset & 0xfff0) == 0x02E0)) { + ((par->Chipset & 0xfff0) == 0x0390)) { MB = 1; NB = 1; } else { @@ -161,7 +160,7 @@ static void nvGetClocks(struct nvidia_par *par, unsigned int *MClk, *MClk = ((N * NB * par->CrystalFreqKHz) / (M * MB)) >> P; pll = NV_RD32(par->PMC, 0x4000); - P = (pll >> 16) & 0x03; + P = (pll >> 16) & 0x07; pll = NV_RD32(par->PMC, 0x4004); M = pll & 0xFF; N = (pll >> 8) & 0xFF; @@ -892,11 +891,17 @@ void NVCalcStateExt(struct nvidia_par *par, state->general = bpp == 16 ? 0x00101100 : 0x00100100; state->repaint1 = hDisplaySize < 1280 ? 0x04 : 0x00; break; + case NV_ARCH_40: + if (!par->FlatPanel) + state->control = NV_RD32(par->PRAMDAC0, 0x0580) & + 0xeffffeff; + /* fallthrough */ case NV_ARCH_10: case NV_ARCH_20: case NV_ARCH_30: default: - if ((par->Chipset & 0xfff0) == 0x0240) { + if ((par->Chipset & 0xfff0) == 0x0240 || + (par->Chipset & 0xfff0) == 0x03d0) { state->arbitration0 = 256; state->arbitration1 = 0x0480; } else if (((par->Chipset & 0xffff) == 0x01A0) || @@ -939,7 +944,7 @@ void NVCalcStateExt(struct nvidia_par *par, void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) { - int i; + int i, j; NV_WR32(par->PMC, 0x0140, 0x00000000); NV_WR32(par->PMC, 0x0200, 0xFFFF00FF); @@ -951,7 +956,8 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) NV_WR32(par->PTIMER, 0x0100 * 4, 0xFFFFFFFF); if (par->Architecture == NV_ARCH_04) { - NV_WR32(par->PFB, 0x0200, state->config); + if (state) + NV_WR32(par->PFB, 0x0200, state->config); } else if ((par->Architecture < NV_ARCH_40) || (par->Chipset & 0xfff0) == 0x0040) { for (i = 0; i < 8; i++) { @@ -964,8 +970,9 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) if (((par->Chipset & 0xfff0) == 0x0090) || ((par->Chipset & 0xfff0) == 0x01D0) || - ((par->Chipset & 0xfff0) == 0x02E0) || - ((par->Chipset & 0xfff0) == 0x0290)) + ((par->Chipset & 0xfff0) == 0x0290) || + ((par->Chipset & 0xfff0) == 0x0390) || + ((par->Chipset & 0xfff0) == 0x03D0)) regions = 15; for(i = 0; i < regions; i++) { NV_WR32(par->PFB, 0x0600 + (i * 0x10), 0); @@ -1206,16 +1213,20 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) NV_WR32(par->PGRAPH, 0x0608, 0xFFFFFFFF); } else { if (par->Architecture >= NV_ARCH_40) { - u32 tmp; - NV_WR32(par->PGRAPH, 0x0084, 0x401287c0); NV_WR32(par->PGRAPH, 0x008C, 0x60de8051); NV_WR32(par->PGRAPH, 0x0090, 0x00008000); NV_WR32(par->PGRAPH, 0x0610, 0x00be3c5f); + NV_WR32(par->PGRAPH, 0x0bc4, + NV_RD32(par->PGRAPH, 0x0bc4) | + 0x00008000); - tmp = NV_RD32(par->REGS, 0x1540) & 0xff; - for(i = 0; tmp && !(tmp & 1); tmp >>= 1, i++); - NV_WR32(par->PGRAPH, 0x5000, i); + j = NV_RD32(par->REGS, 0x1540) & 0xff; + + if (j) { + for (i = 0; !(j & 1); j >>= 1, i++); + NV_WR32(par->PGRAPH, 0x5000, i); + } if ((par->Chipset & 0xfff0) == 0x0040) { NV_WR32(par->PGRAPH, 0x09b0, @@ -1250,6 +1261,7 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) case 0x0160: case 0x01D0: case 0x0240: + case 0x03D0: NV_WR32(par->PMC, 0x1700, NV_RD32(par->PFB, 0x020C)); NV_WR32(par->PMC, 0x1704, 0); @@ -1269,7 +1281,6 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) 0x00000108); break; case 0x0220: - case 0x0230: NV_WR32(par->PGRAPH, 0x0860, 0); NV_WR32(par->PGRAPH, 0x0864, 0); NV_WR32(par->PRAMDAC, 0x0608, @@ -1277,8 +1288,8 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) 0x00100000); break; case 0x0090: - case 0x02E0: case 0x0290: + case 0x0390: NV_WR32(par->PRAMDAC, 0x0608, NV_RD32(par->PRAMDAC, 0x0608) | 0x00100000); @@ -1355,8 +1366,9 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) } else { if (((par->Chipset & 0xfff0) == 0x0090) || ((par->Chipset & 0xfff0) == 0x01D0) || - ((par->Chipset & 0xfff0) == 0x02E0) || - ((par->Chipset & 0xfff0) == 0x0290)) { + ((par->Chipset & 0xfff0) == 0x0290) || + ((par->Chipset & 0xfff0) == 0x0390) || + ((par->Chipset & 0xfff0) == 0x03D0)) { for (i = 0; i < 60; i++) { NV_WR32(par->PGRAPH, 0x0D00 + i*4, @@ -1407,8 +1419,8 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) } else { if ((par->Chipset & 0xfff0) == 0x0090 || (par->Chipset & 0xfff0) == 0x01D0 || - (par->Chipset & 0xfff0) == 0x02E0 || - (par->Chipset & 0xfff0) == 0x0290) { + (par->Chipset & 0xfff0) == 0x0290 || + (par->Chipset & 0xfff0) == 0x0390) { NV_WR32(par->PGRAPH, 0x0DF0, NV_RD32(par->PFB, 0x0200)); NV_WR32(par->PGRAPH, 0x0DF4, @@ -1495,6 +1507,12 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) NV_WR32(par->PFIFO, 0x0494 * 4, 0x00000001); NV_WR32(par->PFIFO, 0x0495 * 4, 0x00000001); NV_WR32(par->PFIFO, 0x0140 * 4, 0x00000001); + + if (!state) { + par->CurrentState = NULL; + return; + } + if (par->Architecture >= NV_ARCH_10) { if (par->twoHeads) { NV_WR32(par->PCRTC0, 0x0860, state->head); @@ -1566,6 +1584,9 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) VGA_WR08(par->PCIO, 0x03D5, state->interlace); if (!par->FlatPanel) { + if (par->Architecture >= NV_ARCH_40) + NV_WR32(par->PRAMDAC0, 0x0580, state->control); + NV_WR32(par->PRAMDAC0, 0x050C, state->pllsel); NV_WR32(par->PRAMDAC0, 0x0508, state->vpll); if (par->twoHeads) @@ -1631,6 +1652,9 @@ void NVUnloadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state) { state->scale = NV_RD32(par->PRAMDAC, 0x0848); state->config = NV_RD32(par->PFB, 0x0200); + if (par->Architecture >= NV_ARCH_40 && !par->FlatPanel) + state->control = NV_RD32(par->PRAMDAC0, 0x0580); + if (par->Architecture >= NV_ARCH_10) { if (par->twoHeads) { state->head = NV_RD32(par->PCRTC0, 0x0860); diff --git a/drivers/video/nvidia/nv_setup.c b/drivers/video/nvidia/nv_setup.c index 707e2c8a13ed..82579d3a9970 100644 --- a/drivers/video/nvidia/nv_setup.c +++ b/drivers/video/nvidia/nv_setup.c @@ -166,11 +166,13 @@ u8 NVReadDacData(struct nvidia_par *par) static int NVIsConnected(struct nvidia_par *par, int output) { volatile u32 __iomem *PRAMDAC = par->PRAMDAC0; - u32 reg52C, reg608; + u32 reg52C, reg608, dac0_reg608 = 0; int present; - if (output) - PRAMDAC += 0x800; + if (output) { + dac0_reg608 = NV_RD32(PRAMDAC, 0x0608); + PRAMDAC += 0x800; + } reg52C = NV_RD32(PRAMDAC, 0x052C); reg608 = NV_RD32(PRAMDAC, 0x0608); @@ -194,8 +196,8 @@ static int NVIsConnected(struct nvidia_par *par, int output) else printk("nvidiafb: CRTC%i analog not found\n", output); - NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) & - 0x0000EFFF); + if (output) + NV_WR32(par->PRAMDAC0, 0x0608, dac0_reg608); NV_WR32(PRAMDAC, 0x052C, reg52C); NV_WR32(PRAMDAC, 0x0608, reg608); diff --git a/drivers/video/nvidia/nv_type.h b/drivers/video/nvidia/nv_type.h index 38f7cc0a2331..2fdf77ec39fc 100644 --- a/drivers/video/nvidia/nv_type.h +++ b/drivers/video/nvidia/nv_type.h @@ -86,6 +86,7 @@ typedef struct _riva_hw_state { u32 timingV; u32 displayV; u32 crtcSync; + u32 control; } RIVA_HW_STATE; struct riva_regs { diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c index 41f63658572f..a7fe214f0f77 100644 --- a/drivers/video/nvidia/nvidia.c +++ b/drivers/video/nvidia/nvidia.c @@ -674,6 +674,7 @@ static int nvidiafb_set_par(struct fb_info *info) info->fbops->fb_sync = nvidiafb_sync; info->pixmap.scan_align = 4; info->flags &= ~FBINFO_HWACCEL_DISABLED; + info->flags |= FBINFO_READS_FAST; NVResetGraphics(info); } else { info->fbops->fb_imageblit = cfb_imageblit; @@ -682,6 +683,7 @@ static int nvidiafb_set_par(struct fb_info *info) info->fbops->fb_sync = NULL; info->pixmap.scan_align = 1; info->flags |= FBINFO_HWACCEL_DISABLED; + info->flags &= ~FBINFO_READS_FAST; } par->cursor_reset = 1; @@ -1193,7 +1195,8 @@ static u32 __devinit nvidia_get_chipset(struct fb_info *info) printk(KERN_INFO PFX "Device ID: %x \n", id); - if ((id & 0xfff0) == 0x00f0) { + if ((id & 0xfff0) == 0x00f0 || + (id & 0xfff0) == 0x02e0) { /* pci-e */ id = NV_RD32(par->REGS, 0x1800); @@ -1238,18 +1241,16 @@ static u32 __devinit nvidia_get_arch(struct fb_info *info) case 0x0040: /* GeForce 6800 */ case 0x00C0: /* GeForce 6800 */ case 0x0120: /* GeForce 6800 */ - case 0x0130: case 0x0140: /* GeForce 6600 */ case 0x0160: /* GeForce 6200 */ case 0x01D0: /* GeForce 7200, 7300, 7400 */ - case 0x02E0: /* GeForce 7300 GT */ case 0x0090: /* GeForce 7800 */ case 0x0210: /* GeForce 6800 */ case 0x0220: /* GeForce 6200 */ - case 0x0230: case 0x0240: /* GeForce 6100 */ case 0x0290: /* GeForce 7900 */ case 0x0390: /* GeForce 7600 */ + case 0x03D0: arch = NV_ARCH_40; break; case 0x0020: /* TNT, TNT2 */ diff --git a/drivers/video/offb.c b/drivers/video/offb.c index 885b42836cbb..452433d46973 100644 --- a/drivers/video/offb.c +++ b/drivers/video/offb.c @@ -271,7 +271,7 @@ static void __init offb_init_fb(const char *name, const char *full_name, return; } - size = sizeof(struct fb_info) + sizeof(u32) * 17; + size = sizeof(struct fb_info) + sizeof(u32) * 16; info = kmalloc(size, GFP_ATOMIC); diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig new file mode 100644 index 000000000000..7f4d25b8a184 --- /dev/null +++ b/drivers/video/omap/Kconfig @@ -0,0 +1,58 @@ +config FB_OMAP + tristate "OMAP frame buffer support (EXPERIMENTAL)" + depends on FB + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + Frame buffer driver for OMAP based boards. + +config FB_OMAP_BOOTLOADER_INIT + bool "Check bootloader initializaion" + depends on FB_OMAP + help + Say Y here if you want to enable checking if the bootloader has + already initialized the display controller. In this case the + driver will skip the initialization. + +config FB_OMAP_CONSISTENT_DMA_SIZE + int "Consistent DMA memory size (MB)" + depends on FB_OMAP + range 1 14 + default 2 + help + Increase the DMA consistent memory size according to your video + memory needs, for example if you want to use multiple planes. + The size must be 2MB aligned. + If unsure say 1. + +config FB_OMAP_DMA_TUNE + bool "Set DMA SDRAM access priority high" + depends on FB_OMAP && ARCH_OMAP1 + help + On systems in which video memory is in system memory + (SDRAM) this will speed up graphics DMA operations. + If you have such a system and want to use rotation + answer yes. Answer no if you have a dedicated video + memory, or don't use any of the accelerated features. + +config FB_OMAP_LCDC_EXTERNAL + bool "External LCD controller support" + depends on FB_OMAP + help + Say Y here, if you want to have support for boards with an + external LCD controller connected to the SoSSI/RFBI interface. + +config FB_OMAP_LCDC_HWA742 + bool "Epson HWA742 LCD controller support" + depends on FB_OMAP && FB_OMAP_LCDC_EXTERNAL + help + Say Y here if you want to have support for the external + Epson HWA742 LCD controller. + +config FB_OMAP_LCDC_BLIZZARD + bool "Epson Blizzard LCD controller support" + depends on FB_OMAP && FB_OMAP_LCDC_EXTERNAL + help + Say Y here if you want to have support for the external + Epson Blizzard LCD controller. diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile new file mode 100644 index 000000000000..99da8b6d2c36 --- /dev/null +++ b/drivers/video/omap/Makefile @@ -0,0 +1,29 @@ +# +# Makefile for the new OMAP framebuffer device driver +# + +obj-$(CONFIG_FB_OMAP) += omapfb.o + +objs-yy := omapfb_main.o + +objs-y$(CONFIG_ARCH_OMAP1) += lcdc.o +objs-y$(CONFIG_ARCH_OMAP2) += dispc.o + +objs-$(CONFIG_ARCH_OMAP1)$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += sossi.o +objs-$(CONFIG_ARCH_OMAP2)$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += rfbi.o + +objs-y$(CONFIG_FB_OMAP_LCDC_HWA742) += hwa742.o +objs-y$(CONFIG_FB_OMAP_LCDC_BLIZZARD) += blizzard.o + +objs-y$(CONFIG_MACH_OMAP_H4) += lcd_h4.o +objs-y$(CONFIG_MACH_OMAP_H3) += lcd_h3.o +objs-y$(CONFIG_MACH_OMAP_PALMTE) += lcd_palmte.o +objs-y$(CONFIG_MACH_OMAP_PALMTT) += lcd_palmtt.o +objs-y$(CONFIG_MACH_OMAP_PALMZ71) += lcd_palmz71.o +objs-$(CONFIG_ARCH_OMAP16XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1610.o +objs-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o +objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o +objs-y$(CONFIG_MACH_SX1) += lcd_sx1.o + +omapfb-objs := $(objs-yy) + diff --git a/drivers/video/omap/blizzard.c b/drivers/video/omap/blizzard.c new file mode 100644 index 000000000000..e682940a97a4 --- /dev/null +++ b/drivers/video/omap/blizzard.c @@ -0,0 +1,1568 @@ +/* + * Epson Blizzard LCD controller driver + * + * Copyright (C) 2004-2005 Nokia Corporation + * Authors: Juha Yrjola <juha.yrjola@nokia.com> + * Imre Deak <imre.deak@nokia.com> + * YUV support: Jussi Laako <jussi.laako@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/fb.h> +#include <linux/delay.h> +#include <linux/clk.h> + +#include <asm/arch/dma.h> +#include <asm/arch/omapfb.h> +#include <asm/arch/blizzard.h> + +#include "dispc.h" + +#define MODULE_NAME "blizzard" + +#define BLIZZARD_REV_CODE 0x00 +#define BLIZZARD_CONFIG 0x02 +#define BLIZZARD_PLL_DIV 0x04 +#define BLIZZARD_PLL_LOCK_RANGE 0x06 +#define BLIZZARD_PLL_CLOCK_SYNTH_0 0x08 +#define BLIZZARD_PLL_CLOCK_SYNTH_1 0x0a +#define BLIZZARD_PLL_MODE 0x0c +#define BLIZZARD_CLK_SRC 0x0e +#define BLIZZARD_MEM_BANK0_ACTIVATE 0x10 +#define BLIZZARD_MEM_BANK0_STATUS 0x14 +#define BLIZZARD_HDISP 0x2a +#define BLIZZARD_HNDP 0x2c +#define BLIZZARD_VDISP0 0x2e +#define BLIZZARD_VDISP1 0x30 +#define BLIZZARD_VNDP 0x32 +#define BLIZZARD_HSW 0x34 +#define BLIZZARD_VSW 0x38 +#define BLIZZARD_DISPLAY_MODE 0x68 +#define BLIZZARD_INPUT_WIN_X_START_0 0x6c +#define BLIZZARD_DATA_SOURCE_SELECT 0x8e +#define BLIZZARD_DISP_MEM_DATA_PORT 0x90 +#define BLIZZARD_DISP_MEM_READ_ADDR0 0x92 +#define BLIZZARD_POWER_SAVE 0xE6 +#define BLIZZARD_NDISP_CTRL_STATUS 0xE8 + +/* Data source select */ +/* For S1D13745 */ +#define BLIZZARD_SRC_WRITE_LCD_BACKGROUND 0x00 +#define BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE 0x01 +#define BLIZZARD_SRC_WRITE_OVERLAY_ENABLE 0x04 +#define BLIZZARD_SRC_DISABLE_OVERLAY 0x05 +/* For S1D13744 */ +#define BLIZZARD_SRC_WRITE_LCD 0x00 +#define BLIZZARD_SRC_BLT_LCD 0x06 + +#define BLIZZARD_COLOR_RGB565 0x01 +#define BLIZZARD_COLOR_YUV420 0x09 + +#define BLIZZARD_VERSION_S1D13745 0x01 /* Hailstorm */ +#define BLIZZARD_VERSION_S1D13744 0x02 /* Blizzard */ + +#define BLIZZARD_AUTO_UPDATE_TIME (HZ / 20) + +/* Reserve 4 request slots for requests in irq context */ +#define REQ_POOL_SIZE 24 +#define IRQ_REQ_POOL_SIZE 4 + +#define REQ_FROM_IRQ_POOL 0x01 + +#define REQ_COMPLETE 0 +#define REQ_PENDING 1 + +struct blizzard_reg_list { + int start; + int end; +}; + +/* These need to be saved / restored separately from the rest. */ +static struct blizzard_reg_list blizzard_pll_regs[] = { + { + .start = 0x04, /* Don't save PLL ctrl (0x0C) */ + .end = 0x0a, + }, + { + .start = 0x0e, /* Clock configuration */ + .end = 0x0e, + }, +}; + +static struct blizzard_reg_list blizzard_gen_regs[] = { + { + .start = 0x18, /* SDRAM control */ + .end = 0x20, + }, + { + .start = 0x28, /* LCD Panel configuration */ + .end = 0x5a, /* HSSI interface, TV configuration */ + }, +}; + +static u8 blizzard_reg_cache[0x5a / 2]; + +struct update_param { + int plane; + int x, y, width, height; + int out_x, out_y; + int out_width, out_height; + int color_mode; + int bpp; + int flags; +}; + +struct blizzard_request { + struct list_head entry; + unsigned int flags; + + int (*handler)(struct blizzard_request *req); + void (*complete)(void *data); + void *complete_data; + + union { + struct update_param update; + struct completion *sync; + } par; +}; + +struct plane_info { + unsigned long offset; + int pos_x, pos_y; + int width, height; + int out_width, out_height; + int scr_width; + int color_mode; + int bpp; +}; + +struct blizzard_struct { + enum omapfb_update_mode update_mode; + enum omapfb_update_mode update_mode_before_suspend; + + struct timer_list auto_update_timer; + int stop_auto_update; + struct omapfb_update_window auto_update_window; + int enabled_planes; + int vid_nonstd_color; + int vid_scaled; + int last_color_mode; + int zoom_on; + int screen_width; + int screen_height; + unsigned te_connected:1; + unsigned vsync_only:1; + + struct plane_info plane[OMAPFB_PLANE_NUM]; + + struct blizzard_request req_pool[REQ_POOL_SIZE]; + struct list_head pending_req_list; + struct list_head free_req_list; + struct semaphore req_sema; + spinlock_t req_lock; + + unsigned long sys_ck_rate; + struct extif_timings reg_timings, lut_timings; + + u32 max_transmit_size; + u32 extif_clk_period; + int extif_clk_div; + unsigned long pix_tx_time; + unsigned long line_upd_time; + + struct omapfb_device *fbdev; + struct lcd_ctrl_extif *extif; + struct lcd_ctrl *int_ctrl; + + void (*power_up)(struct device *dev); + void (*power_down)(struct device *dev); + + int version; +} blizzard; + +struct lcd_ctrl blizzard_ctrl; + +static u8 blizzard_read_reg(u8 reg) +{ + u8 data; + + blizzard.extif->set_bits_per_cycle(8); + blizzard.extif->write_command(®, 1); + blizzard.extif->read_data(&data, 1); + + return data; +} + +static void blizzard_write_reg(u8 reg, u8 val) +{ + blizzard.extif->set_bits_per_cycle(8); + blizzard.extif->write_command(®, 1); + blizzard.extif->write_data(&val, 1); +} + +static void blizzard_restart_sdram(void) +{ + unsigned long tmo; + + blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0); + udelay(50); + blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 1); + tmo = jiffies + msecs_to_jiffies(200); + while (!(blizzard_read_reg(BLIZZARD_MEM_BANK0_STATUS) & 0x01)) { + if (time_after(jiffies, tmo)) { + dev_err(blizzard.fbdev->dev, + "s1d1374x: SDRAM not ready"); + break; + } + msleep(1); + } +} + +static void blizzard_stop_sdram(void) +{ + blizzard_write_reg(BLIZZARD_MEM_BANK0_ACTIVATE, 0); +} + +/* Wait until the last window was completely written into the controllers + * SDRAM and we can start transferring the next window. + */ +static void blizzard_wait_line_buffer(void) +{ + unsigned long tmo = jiffies + msecs_to_jiffies(30); + + while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 7)) { + if (time_after(jiffies, tmo)) { + if (printk_ratelimit()) + dev_err(blizzard.fbdev->dev, + "s1d1374x: line buffer not ready\n"); + break; + } + } +} + +/* Wait until the YYC color space converter is idle. */ +static void blizzard_wait_yyc(void) +{ + unsigned long tmo = jiffies + msecs_to_jiffies(30); + + while (blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS) & (1 << 4)) { + if (time_after(jiffies, tmo)) { + if (printk_ratelimit()) + dev_err(blizzard.fbdev->dev, + "s1d1374x: YYC not ready\n"); + break; + } + } +} + +static void disable_overlay(void) +{ + blizzard_write_reg(BLIZZARD_DATA_SOURCE_SELECT, + BLIZZARD_SRC_DISABLE_OVERLAY); +} + +static void set_window_regs(int x_start, int y_start, int x_end, int y_end, + int x_out_start, int y_out_start, + int x_out_end, int y_out_end, int color_mode, + int zoom_off, int flags) +{ + u8 tmp[18]; + u8 cmd; + + x_end--; + y_end--; + tmp[0] = x_start; + tmp[1] = x_start >> 8; + tmp[2] = y_start; + tmp[3] = y_start >> 8; + tmp[4] = x_end; + tmp[5] = x_end >> 8; + tmp[6] = y_end; + tmp[7] = y_end >> 8; + + x_out_end--; + y_out_end--; + tmp[8] = x_out_start; + tmp[9] = x_out_start >> 8; + tmp[10] = y_out_start; + tmp[11] = y_out_start >> 8; + tmp[12] = x_out_end; + tmp[13] = x_out_end >> 8; + tmp[14] = y_out_end; + tmp[15] = y_out_end >> 8; + + tmp[16] = color_mode; + if (zoom_off && blizzard.version == BLIZZARD_VERSION_S1D13745) + tmp[17] = BLIZZARD_SRC_WRITE_LCD_BACKGROUND; + else if (flags & OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY) + tmp[17] = BLIZZARD_SRC_WRITE_OVERLAY_ENABLE; + else + tmp[17] = blizzard.version == BLIZZARD_VERSION_S1D13744 ? + BLIZZARD_SRC_WRITE_LCD : + BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE; + + blizzard.extif->set_bits_per_cycle(8); + cmd = BLIZZARD_INPUT_WIN_X_START_0; + blizzard.extif->write_command(&cmd, 1); + blizzard.extif->write_data(tmp, 18); +} + +static void enable_tearsync(int y, int width, int height, int screen_height, + int out_height, int force_vsync) +{ + u8 b; + + b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS); + b |= 1 << 3; + blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b); + + if (likely(blizzard.vsync_only || force_vsync)) { + blizzard.extif->enable_tearsync(1, 0); + return; + } + + if (width * blizzard.pix_tx_time < blizzard.line_upd_time) { + blizzard.extif->enable_tearsync(1, 0); + return; + } + + if ((width * blizzard.pix_tx_time / 1000) * height < + (y + out_height) * (blizzard.line_upd_time / 1000)) { + blizzard.extif->enable_tearsync(1, 0); + return; + } + + blizzard.extif->enable_tearsync(1, y + 1); +} + +static void disable_tearsync(void) +{ + u8 b; + + blizzard.extif->enable_tearsync(0, 0); + b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS); + b &= ~(1 << 3); + blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b); + b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS); +} + +static inline void set_extif_timings(const struct extif_timings *t); + +static inline struct blizzard_request *alloc_req(void) +{ + unsigned long flags; + struct blizzard_request *req; + int req_flags = 0; + + if (!in_interrupt()) + down(&blizzard.req_sema); + else + req_flags = REQ_FROM_IRQ_POOL; + + spin_lock_irqsave(&blizzard.req_lock, flags); + BUG_ON(list_empty(&blizzard.free_req_list)); + req = list_entry(blizzard.free_req_list.next, + struct blizzard_request, entry); + list_del(&req->entry); + spin_unlock_irqrestore(&blizzard.req_lock, flags); + + INIT_LIST_HEAD(&req->entry); + req->flags = req_flags; + + return req; +} + +static inline void free_req(struct blizzard_request *req) +{ + unsigned long flags; + + spin_lock_irqsave(&blizzard.req_lock, flags); + + list_del(&req->entry); + list_add(&req->entry, &blizzard.free_req_list); + if (!(req->flags & REQ_FROM_IRQ_POOL)) + up(&blizzard.req_sema); + + spin_unlock_irqrestore(&blizzard.req_lock, flags); +} + +static void process_pending_requests(void) +{ + unsigned long flags; + + spin_lock_irqsave(&blizzard.req_lock, flags); + + while (!list_empty(&blizzard.pending_req_list)) { + struct blizzard_request *req; + void (*complete)(void *); + void *complete_data; + + req = list_entry(blizzard.pending_req_list.next, + struct blizzard_request, entry); + spin_unlock_irqrestore(&blizzard.req_lock, flags); + + if (req->handler(req) == REQ_PENDING) + return; + + complete = req->complete; + complete_data = req->complete_data; + free_req(req); + + if (complete) + complete(complete_data); + + spin_lock_irqsave(&blizzard.req_lock, flags); + } + + spin_unlock_irqrestore(&blizzard.req_lock, flags); +} + +static void submit_req_list(struct list_head *head) +{ + unsigned long flags; + int process = 1; + + spin_lock_irqsave(&blizzard.req_lock, flags); + if (likely(!list_empty(&blizzard.pending_req_list))) + process = 0; + list_splice_init(head, blizzard.pending_req_list.prev); + spin_unlock_irqrestore(&blizzard.req_lock, flags); + + if (process) + process_pending_requests(); +} + +static void request_complete(void *data) +{ + struct blizzard_request *req = (struct blizzard_request *)data; + void (*complete)(void *); + void *complete_data; + + complete = req->complete; + complete_data = req->complete_data; + + free_req(req); + + if (complete) + complete(complete_data); + + process_pending_requests(); +} + + +static int do_full_screen_update(struct blizzard_request *req) +{ + int i; + int flags; + + for (i = 0; i < 3; i++) { + struct plane_info *p = &blizzard.plane[i]; + if (!(blizzard.enabled_planes & (1 << i))) { + blizzard.int_ctrl->enable_plane(i, 0); + continue; + } + dev_dbg(blizzard.fbdev->dev, "pw %d ph %d\n", + p->width, p->height); + blizzard.int_ctrl->setup_plane(i, + OMAPFB_CHANNEL_OUT_LCD, p->offset, + p->scr_width, p->pos_x, p->pos_y, + p->width, p->height, + p->color_mode); + blizzard.int_ctrl->enable_plane(i, 1); + } + + dev_dbg(blizzard.fbdev->dev, "sw %d sh %d\n", + blizzard.screen_width, blizzard.screen_height); + blizzard_wait_line_buffer(); + flags = req->par.update.flags; + if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC) + enable_tearsync(0, blizzard.screen_width, + blizzard.screen_height, + blizzard.screen_height, + blizzard.screen_height, + flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC); + else + disable_tearsync(); + + set_window_regs(0, 0, blizzard.screen_width, blizzard.screen_height, + 0, 0, blizzard.screen_width, blizzard.screen_height, + BLIZZARD_COLOR_RGB565, blizzard.zoom_on, flags); + blizzard.zoom_on = 0; + + blizzard.extif->set_bits_per_cycle(16); + /* set_window_regs has left the register index at the right + * place, so no need to set it here. + */ + blizzard.extif->transfer_area(blizzard.screen_width, + blizzard.screen_height, + request_complete, req); + return REQ_PENDING; +} + +/* Setup all planes with an overlapping area with the update window. */ +static int do_partial_update(struct blizzard_request *req, int plane, + int x, int y, int w, int h, + int x_out, int y_out, int w_out, int h_out, + int wnd_color_mode, int bpp) +{ + int i; + int gx1, gy1, gx2, gy2; + int gx1_out, gy1_out, gx2_out, gy2_out; + int color_mode; + int flags; + int zoom_off; + + /* Global coordinates, relative to pixel 0,0 of the LCD */ + gx1 = x + blizzard.plane[plane].pos_x; + gy1 = y + blizzard.plane[plane].pos_y; + gx2 = gx1 + w; + gy2 = gy1 + h; + + flags = req->par.update.flags; + if (flags & OMAPFB_FORMAT_FLAG_DOUBLE) { + gx1_out = gx1; + gy1_out = gy1; + gx2_out = gx1 + w * 2; + gy2_out = gy1 + h * 2; + } else { + gx1_out = x_out + blizzard.plane[plane].pos_x; + gy1_out = y_out + blizzard.plane[plane].pos_y; + gx2_out = gx1_out + w_out; + gy2_out = gy1_out + h_out; + } + zoom_off = blizzard.zoom_on && gx1 == 0 && gy1 == 0 && + w == blizzard.screen_width && h == blizzard.screen_height; + blizzard.zoom_on = (!zoom_off && blizzard.zoom_on) || + (w < w_out || h < h_out); + + for (i = 0; i < OMAPFB_PLANE_NUM; i++) { + struct plane_info *p = &blizzard.plane[i]; + int px1, py1; + int px2, py2; + int pw, ph; + int pposx, pposy; + unsigned long offset; + + if (!(blizzard.enabled_planes & (1 << i)) || + (wnd_color_mode && i != plane)) { + blizzard.int_ctrl->enable_plane(i, 0); + continue; + } + /* Plane coordinates */ + if (i == plane) { + /* Plane in which we are doing the update. + * Local coordinates are the one in the update + * request. + */ + px1 = x; + py1 = y; + px2 = x + w; + py2 = y + h; + pposx = 0; + pposy = 0; + } else { + /* Check if this plane has an overlapping part */ + px1 = gx1 - p->pos_x; + py1 = gy1 - p->pos_y; + px2 = gx2 - p->pos_x; + py2 = gy2 - p->pos_y; + if (px1 >= p->width || py1 >= p->height || + px2 <= 0 || py2 <= 0) { + blizzard.int_ctrl->enable_plane(i, 0); + continue; + } + /* Calculate the coordinates for the overlapping + * part in the plane's local coordinates. + */ + pposx = -px1; + pposy = -py1; + if (px1 < 0) + px1 = 0; + if (py1 < 0) + py1 = 0; + if (px2 > p->width) + px2 = p->width; + if (py2 > p->height) + py2 = p->height; + if (pposx < 0) + pposx = 0; + if (pposy < 0) + pposy = 0; + } + pw = px2 - px1; + ph = py2 - py1; + offset = p->offset + (p->scr_width * py1 + px1) * p->bpp / 8; + if (wnd_color_mode) + /* Window embedded in the plane with a differing + * color mode / bpp. Calculate the number of DMA + * transfer elements in terms of the plane's bpp. + */ + pw = (pw + 1) * bpp / p->bpp; +#ifdef VERBOSE + dev_dbg(blizzard.fbdev->dev, + "plane %d offset %#08lx pposx %d pposy %d " + "px1 %d py1 %d pw %d ph %d\n", + i, offset, pposx, pposy, px1, py1, pw, ph); +#endif + blizzard.int_ctrl->setup_plane(i, + OMAPFB_CHANNEL_OUT_LCD, offset, + p->scr_width, + pposx, pposy, pw, ph, + p->color_mode); + + blizzard.int_ctrl->enable_plane(i, 1); + } + + switch (wnd_color_mode) { + case OMAPFB_COLOR_YUV420: + color_mode = BLIZZARD_COLOR_YUV420; + /* Currently only the 16 bits/pixel cycle format is + * supported on the external interface. Adjust the number + * of transfer elements per line for 12bpp format. + */ + w = (w + 1) * 3 / 4; + break; + default: + color_mode = BLIZZARD_COLOR_RGB565; + break; + } + + blizzard_wait_line_buffer(); + if (blizzard.last_color_mode == BLIZZARD_COLOR_YUV420) + blizzard_wait_yyc(); + blizzard.last_color_mode = color_mode; + if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC) + enable_tearsync(gy1, w, h, + blizzard.screen_height, + h_out, + flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC); + else + disable_tearsync(); + + set_window_regs(gx1, gy1, gx2, gy2, gx1_out, gy1_out, gx2_out, gy2_out, + color_mode, zoom_off, flags); + + blizzard.extif->set_bits_per_cycle(16); + /* set_window_regs has left the register index at the right + * place, so no need to set it here. + */ + blizzard.extif->transfer_area(w, h, request_complete, req); + + return REQ_PENDING; +} + +static int send_frame_handler(struct blizzard_request *req) +{ + struct update_param *par = &req->par.update; + int plane = par->plane; + +#ifdef VERBOSE + dev_dbg(blizzard.fbdev->dev, + "send_frame: x %d y %d w %d h %d " + "x_out %d y_out %d w_out %d h_out %d " + "color_mode %04x flags %04x planes %01x\n", + par->x, par->y, par->width, par->height, + par->out_x, par->out_y, par->out_width, par->out_height, + par->color_mode, par->flags, blizzard.enabled_planes); +#endif + if (par->flags & OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY) + disable_overlay(); + + if ((blizzard.enabled_planes & blizzard.vid_nonstd_color) || + (blizzard.enabled_planes & blizzard.vid_scaled)) + return do_full_screen_update(req); + + return do_partial_update(req, plane, par->x, par->y, + par->width, par->height, + par->out_x, par->out_y, + par->out_width, par->out_height, + par->color_mode, par->bpp); +} + +static void send_frame_complete(void *data) +{ +} + +#define ADD_PREQ(_x, _y, _w, _h, _x_out, _y_out, _w_out, _h_out) do { \ + req = alloc_req(); \ + req->handler = send_frame_handler; \ + req->complete = send_frame_complete; \ + req->par.update.plane = plane_idx; \ + req->par.update.x = _x; \ + req->par.update.y = _y; \ + req->par.update.width = _w; \ + req->par.update.height = _h; \ + req->par.update.out_x = _x_out; \ + req->par.update.out_y = _y_out; \ + req->par.update.out_width = _w_out; \ + req->par.update.out_height = _h_out; \ + req->par.update.bpp = bpp; \ + req->par.update.color_mode = color_mode;\ + req->par.update.flags = flags; \ + list_add_tail(&req->entry, req_head); \ +} while(0) + +static void create_req_list(int plane_idx, + struct omapfb_update_window *win, + struct list_head *req_head) +{ + struct blizzard_request *req; + int x = win->x; + int y = win->y; + int width = win->width; + int height = win->height; + int x_out = win->out_x; + int y_out = win->out_y; + int width_out = win->out_width; + int height_out = win->out_height; + int color_mode; + int bpp; + int flags; + unsigned int ystart = y; + unsigned int yspan = height; + unsigned int ystart_out = y_out; + unsigned int yspan_out = height_out; + + flags = win->format & ~OMAPFB_FORMAT_MASK; + color_mode = win->format & OMAPFB_FORMAT_MASK; + switch (color_mode) { + case OMAPFB_COLOR_YUV420: + /* Embedded window with different color mode */ + bpp = 12; + /* X, Y, height must be aligned at 2, width at 4 pixels */ + x &= ~1; + y &= ~1; + height = yspan = height & ~1; + width = width & ~3; + break; + default: + /* Same as the plane color mode */ + bpp = blizzard.plane[plane_idx].bpp; + break; + } + if (width * height * bpp / 8 > blizzard.max_transmit_size) { + yspan = blizzard.max_transmit_size / (width * bpp / 8); + yspan_out = yspan * height_out / height; + ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out, + width_out, yspan_out); + ystart += yspan; + ystart_out += yspan_out; + yspan = height - yspan; + yspan_out = height_out - yspan_out; + flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC; + } + + ADD_PREQ(x, ystart, width, yspan, x_out, ystart_out, + width_out, yspan_out); +} + +static void auto_update_complete(void *data) +{ + if (!blizzard.stop_auto_update) + mod_timer(&blizzard.auto_update_timer, + jiffies + BLIZZARD_AUTO_UPDATE_TIME); +} + +static void blizzard_update_window_auto(unsigned long arg) +{ + LIST_HEAD(req_list); + struct blizzard_request *last; + struct omapfb_plane_struct *plane; + + plane = blizzard.fbdev->fb_info[0]->par; + create_req_list(plane->idx, + &blizzard.auto_update_window, &req_list); + last = list_entry(req_list.prev, struct blizzard_request, entry); + + last->complete = auto_update_complete; + last->complete_data = NULL; + + submit_req_list(&req_list); +} + +int blizzard_update_window_async(struct fb_info *fbi, + struct omapfb_update_window *win, + void (*complete_callback)(void *arg), + void *complete_callback_data) +{ + LIST_HEAD(req_list); + struct blizzard_request *last; + struct omapfb_plane_struct *plane = fbi->par; + + if (unlikely(blizzard.update_mode != OMAPFB_MANUAL_UPDATE)) + return -EINVAL; + if (unlikely(!blizzard.te_connected && + (win->format & OMAPFB_FORMAT_FLAG_TEARSYNC))) + return -EINVAL; + + create_req_list(plane->idx, win, &req_list); + last = list_entry(req_list.prev, struct blizzard_request, entry); + + last->complete = complete_callback; + last->complete_data = (void *)complete_callback_data; + + submit_req_list(&req_list); + + return 0; +} +EXPORT_SYMBOL(blizzard_update_window_async); + +static int update_full_screen(void) +{ + return blizzard_update_window_async(blizzard.fbdev->fb_info[0], + &blizzard.auto_update_window, NULL, NULL); + +} + +static int blizzard_setup_plane(int plane, int channel_out, + unsigned long offset, int screen_width, + int pos_x, int pos_y, int width, int height, + int color_mode) +{ + struct plane_info *p; + +#ifdef VERBOSE + dev_dbg(blizzard.fbdev->dev, + "plane %d ch_out %d offset %#08lx scr_width %d " + "pos_x %d pos_y %d width %d height %d color_mode %d\n", + plane, channel_out, offset, screen_width, + pos_x, pos_y, width, height, color_mode); +#endif + if ((unsigned)plane > OMAPFB_PLANE_NUM) + return -EINVAL; + p = &blizzard.plane[plane]; + + switch (color_mode) { + case OMAPFB_COLOR_YUV422: + case OMAPFB_COLOR_YUY422: + p->bpp = 16; + blizzard.vid_nonstd_color &= ~(1 << plane); + break; + case OMAPFB_COLOR_YUV420: + p->bpp = 12; + blizzard.vid_nonstd_color |= 1 << plane; + break; + case OMAPFB_COLOR_RGB565: + p->bpp = 16; + blizzard.vid_nonstd_color &= ~(1 << plane); + break; + default: + return -EINVAL; + } + + p->offset = offset; + p->pos_x = pos_x; + p->pos_y = pos_y; + p->width = width; + p->height = height; + p->scr_width = screen_width; + if (!p->out_width) + p->out_width = width; + if (!p->out_height) + p->out_height = height; + + p->color_mode = color_mode; + + return 0; +} + +static int blizzard_set_scale(int plane, int orig_w, int orig_h, + int out_w, int out_h) +{ + struct plane_info *p = &blizzard.plane[plane]; + int r; + + dev_dbg(blizzard.fbdev->dev, + "plane %d orig_w %d orig_h %d out_w %d out_h %d\n", + plane, orig_w, orig_h, out_w, out_h); + if ((unsigned)plane > OMAPFB_PLANE_NUM) + return -ENODEV; + + r = blizzard.int_ctrl->set_scale(plane, orig_w, orig_h, out_w, out_h); + if (r < 0) + return r; + + p->width = orig_w; + p->height = orig_h; + p->out_width = out_w; + p->out_height = out_h; + if (orig_w == out_w && orig_h == out_h) + blizzard.vid_scaled &= ~(1 << plane); + else + blizzard.vid_scaled |= 1 << plane; + + return 0; +} + +static int blizzard_enable_plane(int plane, int enable) +{ + if (enable) + blizzard.enabled_planes |= 1 << plane; + else + blizzard.enabled_planes &= ~(1 << plane); + + return 0; +} + +static int sync_handler(struct blizzard_request *req) +{ + complete(req->par.sync); + return REQ_COMPLETE; +} + +static void blizzard_sync(void) +{ + LIST_HEAD(req_list); + struct blizzard_request *req; + struct completion comp; + + req = alloc_req(); + + req->handler = sync_handler; + req->complete = NULL; + init_completion(&comp); + req->par.sync = ∁ + + list_add(&req->entry, &req_list); + submit_req_list(&req_list); + + wait_for_completion(&comp); +} + + +static void blizzard_bind_client(struct omapfb_notifier_block *nb) +{ + if (blizzard.update_mode == OMAPFB_MANUAL_UPDATE) { + omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY); + } +} + +static int blizzard_set_update_mode(enum omapfb_update_mode mode) +{ + if (unlikely(mode != OMAPFB_MANUAL_UPDATE && + mode != OMAPFB_AUTO_UPDATE && + mode != OMAPFB_UPDATE_DISABLED)) + return -EINVAL; + + if (mode == blizzard.update_mode) + return 0; + + dev_info(blizzard.fbdev->dev, "s1d1374x: setting update mode to %s\n", + mode == OMAPFB_UPDATE_DISABLED ? "disabled" : + (mode == OMAPFB_AUTO_UPDATE ? "auto" : "manual")); + + switch (blizzard.update_mode) { + case OMAPFB_MANUAL_UPDATE: + omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_DISABLED); + break; + case OMAPFB_AUTO_UPDATE: + blizzard.stop_auto_update = 1; + del_timer_sync(&blizzard.auto_update_timer); + break; + case OMAPFB_UPDATE_DISABLED: + break; + } + + blizzard.update_mode = mode; + blizzard_sync(); + blizzard.stop_auto_update = 0; + + switch (mode) { + case OMAPFB_MANUAL_UPDATE: + omapfb_notify_clients(blizzard.fbdev, OMAPFB_EVENT_READY); + break; + case OMAPFB_AUTO_UPDATE: + blizzard_update_window_auto(0); + break; + case OMAPFB_UPDATE_DISABLED: + break; + } + + return 0; +} + +static enum omapfb_update_mode blizzard_get_update_mode(void) +{ + return blizzard.update_mode; +} + +static inline void set_extif_timings(const struct extif_timings *t) +{ + blizzard.extif->set_timings(t); +} + +static inline unsigned long round_to_extif_ticks(unsigned long ps, int div) +{ + int bus_tick = blizzard.extif_clk_period * div; + return (ps + bus_tick - 1) / bus_tick * bus_tick; +} + +static int calc_reg_timing(unsigned long sysclk, int div) +{ + struct extif_timings *t; + unsigned long systim; + + /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns, + * AccessTime 2 ns + 12.2 ns (regs), + * WEOffTime = WEOnTime + 1 ns, + * REOffTime = REOnTime + 12 ns (regs), + * CSOffTime = REOffTime + 1 ns + * ReadCycle = 2ns + 2*SYSCLK (regs), + * WriteCycle = 2*SYSCLK + 2 ns, + * CSPulseWidth = 10 ns */ + + systim = 1000000000 / (sysclk / 1000); + dev_dbg(blizzard.fbdev->dev, + "Blizzard systim %lu ps extif_clk_period %u div %d\n", + systim, blizzard.extif_clk_period, div); + + t = &blizzard.reg_timings; + memset(t, 0, sizeof(*t)); + + t->clk_div = div; + + t->cs_on_time = 0; + t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->access_time = round_to_extif_ticks(t->re_on_time + 12200, div); + t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div); + t->re_off_time = round_to_extif_ticks(t->re_on_time + 13000, div); + t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div); + t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); + if (t->we_cycle_time < t->we_off_time) + t->we_cycle_time = t->we_off_time; + t->re_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); + if (t->re_cycle_time < t->re_off_time) + t->re_cycle_time = t->re_off_time; + t->cs_pulse_width = 0; + + dev_dbg(blizzard.fbdev->dev, "[reg]cson %d csoff %d reon %d reoff %d\n", + t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); + dev_dbg(blizzard.fbdev->dev, "[reg]weon %d weoff %d recyc %d wecyc %d\n", + t->we_on_time, t->we_off_time, t->re_cycle_time, + t->we_cycle_time); + dev_dbg(blizzard.fbdev->dev, "[reg]rdaccess %d cspulse %d\n", + t->access_time, t->cs_pulse_width); + + return blizzard.extif->convert_timings(t); +} + +static int calc_lut_timing(unsigned long sysclk, int div) +{ + struct extif_timings *t; + unsigned long systim; + + /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns, + * AccessTime 2 ns + 4 * SYSCLK + 26 (lut), + * WEOffTime = WEOnTime + 1 ns, + * REOffTime = REOnTime + 4*SYSCLK + 26 ns (lut), + * CSOffTime = REOffTime + 1 ns + * ReadCycle = 2ns + 4*SYSCLK + 26 ns (lut), + * WriteCycle = 2*SYSCLK + 2 ns, + * CSPulseWidth = 10 ns */ + + systim = 1000000000 / (sysclk / 1000); + dev_dbg(blizzard.fbdev->dev, + "Blizzard systim %lu ps extif_clk_period %u div %d\n", + systim, blizzard.extif_clk_period, div); + + t = &blizzard.lut_timings; + memset(t, 0, sizeof(*t)); + + t->clk_div = div; + + t->cs_on_time = 0; + t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->access_time = round_to_extif_ticks(t->re_on_time + 4 * systim + + 26000, div); + t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div); + t->re_off_time = round_to_extif_ticks(t->re_on_time + 4 * systim + + 26000, div); + t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div); + t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); + if (t->we_cycle_time < t->we_off_time) + t->we_cycle_time = t->we_off_time; + t->re_cycle_time = round_to_extif_ticks(2000 + 4 * systim + 26000, div); + if (t->re_cycle_time < t->re_off_time) + t->re_cycle_time = t->re_off_time; + t->cs_pulse_width = 0; + + dev_dbg(blizzard.fbdev->dev, + "[lut]cson %d csoff %d reon %d reoff %d\n", + t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); + dev_dbg(blizzard.fbdev->dev, + "[lut]weon %d weoff %d recyc %d wecyc %d\n", + t->we_on_time, t->we_off_time, t->re_cycle_time, + t->we_cycle_time); + dev_dbg(blizzard.fbdev->dev, "[lut]rdaccess %d cspulse %d\n", + t->access_time, t->cs_pulse_width); + + return blizzard.extif->convert_timings(t); +} + +static int calc_extif_timings(unsigned long sysclk, int *extif_mem_div) +{ + int max_clk_div; + int div; + + blizzard.extif->get_clk_info(&blizzard.extif_clk_period, &max_clk_div); + for (div = 1; div <= max_clk_div; div++) { + if (calc_reg_timing(sysclk, div) == 0) + break; + } + if (div > max_clk_div) { + dev_dbg(blizzard.fbdev->dev, "reg timing failed\n"); + goto err; + } + *extif_mem_div = div; + + for (div = 1; div <= max_clk_div; div++) { + if (calc_lut_timing(sysclk, div) == 0) + break; + } + + if (div > max_clk_div) + goto err; + + blizzard.extif_clk_div = div; + + return 0; +err: + dev_err(blizzard.fbdev->dev, "can't setup timings\n"); + return -1; +} + +static void calc_blizzard_clk_rates(unsigned long ext_clk, + unsigned long *sys_clk, unsigned long *pix_clk) +{ + int pix_clk_src; + int sys_div = 0, sys_mul = 0; + int pix_div; + + pix_clk_src = blizzard_read_reg(BLIZZARD_CLK_SRC); + pix_div = ((pix_clk_src >> 3) & 0x1f) + 1; + if ((pix_clk_src & (0x3 << 1)) == 0) { + /* Source is the PLL */ + sys_div = (blizzard_read_reg(BLIZZARD_PLL_DIV) & 0x3f) + 1; + sys_mul = blizzard_read_reg(BLIZZARD_PLL_CLOCK_SYNTH_0); + sys_mul |= ((blizzard_read_reg(BLIZZARD_PLL_CLOCK_SYNTH_1) + & 0x0f) << 11); + *sys_clk = ext_clk * sys_mul / sys_div; + } else /* else source is ext clk, or oscillator */ + *sys_clk = ext_clk; + + *pix_clk = *sys_clk / pix_div; /* HZ */ + dev_dbg(blizzard.fbdev->dev, + "ext_clk %ld pix_src %d pix_div %d sys_div %d sys_mul %d\n", + ext_clk, pix_clk_src & (0x3 << 1), pix_div, sys_div, sys_mul); + dev_dbg(blizzard.fbdev->dev, "sys_clk %ld pix_clk %ld\n", + *sys_clk, *pix_clk); +} + +static int setup_tearsync(unsigned long pix_clk, int extif_div) +{ + int hdisp, vdisp; + int hndp, vndp; + int hsw, vsw; + int hs, vs; + int hs_pol_inv, vs_pol_inv; + int use_hsvs, use_ndp; + u8 b; + + hsw = blizzard_read_reg(BLIZZARD_HSW); + vsw = blizzard_read_reg(BLIZZARD_VSW); + hs_pol_inv = !(hsw & 0x80); + vs_pol_inv = !(vsw & 0x80); + hsw = hsw & 0x7f; + vsw = vsw & 0x3f; + + hdisp = blizzard_read_reg(BLIZZARD_HDISP) * 8; + vdisp = blizzard_read_reg(BLIZZARD_VDISP0) + + ((blizzard_read_reg(BLIZZARD_VDISP1) & 0x3) << 8); + + hndp = blizzard_read_reg(BLIZZARD_HNDP) & 0x3f; + vndp = blizzard_read_reg(BLIZZARD_VNDP); + + /* time to transfer one pixel (16bpp) in ps */ + blizzard.pix_tx_time = blizzard.reg_timings.we_cycle_time; + if (blizzard.extif->get_max_tx_rate != NULL) { + /* The external interface might have a rate limitation, + * if so, we have to maximize our transfer rate. + */ + unsigned long min_tx_time; + unsigned long max_tx_rate = blizzard.extif->get_max_tx_rate(); + + dev_dbg(blizzard.fbdev->dev, "max_tx_rate %ld HZ\n", + max_tx_rate); + min_tx_time = 1000000000 / (max_tx_rate / 1000); /* ps */ + if (blizzard.pix_tx_time < min_tx_time) + blizzard.pix_tx_time = min_tx_time; + } + + /* time to update one line in ps */ + blizzard.line_upd_time = (hdisp + hndp) * 1000000 / (pix_clk / 1000); + blizzard.line_upd_time *= 1000; + if (hdisp * blizzard.pix_tx_time > blizzard.line_upd_time) + /* transfer speed too low, we might have to use both + * HS and VS */ + use_hsvs = 1; + else + /* decent transfer speed, we'll always use only VS */ + use_hsvs = 0; + + if (use_hsvs && (hs_pol_inv || vs_pol_inv)) { + /* HS or'ed with VS doesn't work, use the active high + * TE signal based on HNDP / VNDP */ + use_ndp = 1; + hs_pol_inv = 0; + vs_pol_inv = 0; + hs = hndp; + vs = vndp; + } else { + /* Use HS or'ed with VS as a TE signal if both are needed + * or VNDP if only vsync is needed. */ + use_ndp = 0; + hs = hsw; + vs = vsw; + if (!use_hsvs) { + hs_pol_inv = 0; + vs_pol_inv = 0; + } + } + + hs = hs * 1000000 / (pix_clk / 1000); /* ps */ + hs *= 1000; + + vs = vs * (hdisp + hndp) * 1000000 / (pix_clk / 1000); /* ps */ + vs *= 1000; + + if (vs <= hs) + return -EDOM; + /* set VS to 120% of HS to minimize VS detection time */ + vs = hs * 12 / 10; + /* minimize HS too */ + if (hs > 10000) + hs = 10000; + + b = blizzard_read_reg(BLIZZARD_NDISP_CTRL_STATUS); + b &= ~0x3; + b |= use_hsvs ? 1 : 0; + b |= (use_ndp && use_hsvs) ? 0 : 2; + blizzard_write_reg(BLIZZARD_NDISP_CTRL_STATUS, b); + + blizzard.vsync_only = !use_hsvs; + + dev_dbg(blizzard.fbdev->dev, + "pix_clk %ld HZ pix_tx_time %ld ps line_upd_time %ld ps\n", + pix_clk, blizzard.pix_tx_time, blizzard.line_upd_time); + dev_dbg(blizzard.fbdev->dev, + "hs %d ps vs %d ps mode %d vsync_only %d\n", + hs, vs, b & 0x3, !use_hsvs); + + return blizzard.extif->setup_tearsync(1, hs, vs, + hs_pol_inv, vs_pol_inv, + extif_div); +} + +static void blizzard_get_caps(int plane, struct omapfb_caps *caps) +{ + blizzard.int_ctrl->get_caps(plane, caps); + caps->ctrl |= OMAPFB_CAPS_MANUAL_UPDATE | + OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE | + OMAPFB_CAPS_WINDOW_SCALE | + OMAPFB_CAPS_WINDOW_OVERLAY; + if (blizzard.te_connected) + caps->ctrl |= OMAPFB_CAPS_TEARSYNC; + caps->wnd_color |= (1 << OMAPFB_COLOR_RGB565) | + (1 << OMAPFB_COLOR_YUV420); +} + +static void _save_regs(struct blizzard_reg_list *list, int cnt) +{ + int i; + + for (i = 0; i < cnt; i++, list++) { + int reg; + for (reg = list->start; reg <= list->end; reg += 2) + blizzard_reg_cache[reg / 2] = blizzard_read_reg(reg); + } +} + +static void _restore_regs(struct blizzard_reg_list *list, int cnt) +{ + int i; + + for (i = 0; i < cnt; i++, list++) { + int reg; + for (reg = list->start; reg <= list->end; reg += 2) + blizzard_write_reg(reg, blizzard_reg_cache[reg / 2]); + } +} + +static void blizzard_save_all_regs(void) +{ + _save_regs(blizzard_pll_regs, ARRAY_SIZE(blizzard_pll_regs)); + _save_regs(blizzard_gen_regs, ARRAY_SIZE(blizzard_gen_regs)); +} + +static void blizzard_restore_pll_regs(void) +{ + _restore_regs(blizzard_pll_regs, ARRAY_SIZE(blizzard_pll_regs)); +} + +static void blizzard_restore_gen_regs(void) +{ + _restore_regs(blizzard_gen_regs, ARRAY_SIZE(blizzard_gen_regs)); +} + +static void blizzard_suspend(void) +{ + u32 l; + unsigned long tmo; + + if (blizzard.last_color_mode) { + update_full_screen(); + blizzard_sync(); + } + blizzard.update_mode_before_suspend = blizzard.update_mode; + /* the following will disable clocks as well */ + blizzard_set_update_mode(OMAPFB_UPDATE_DISABLED); + + blizzard_save_all_regs(); + + blizzard_stop_sdram(); + + l = blizzard_read_reg(BLIZZARD_POWER_SAVE); + /* Standby, Sleep. We assume we use an external clock. */ + l |= 0x03; + blizzard_write_reg(BLIZZARD_POWER_SAVE, l); + + tmo = jiffies + msecs_to_jiffies(100); + while (!(blizzard_read_reg(BLIZZARD_PLL_MODE) & (1 << 1))) { + if (time_after(jiffies, tmo)) { + dev_err(blizzard.fbdev->dev, + "s1d1374x: sleep timeout, stopping PLL manually\n"); + l = blizzard_read_reg(BLIZZARD_PLL_MODE); + l &= ~0x03; + /* Disable PLL, counter function */ + l |= 0x2; + blizzard_write_reg(BLIZZARD_PLL_MODE, l); + break; + } + msleep(1); + } + + if (blizzard.power_down != NULL) + blizzard.power_down(blizzard.fbdev->dev); +} + +static void blizzard_resume(void) +{ + u32 l; + + if (blizzard.power_up != NULL) + blizzard.power_up(blizzard.fbdev->dev); + + l = blizzard_read_reg(BLIZZARD_POWER_SAVE); + /* Standby, Sleep */ + l &= ~0x03; + blizzard_write_reg(BLIZZARD_POWER_SAVE, l); + + blizzard_restore_pll_regs(); + l = blizzard_read_reg(BLIZZARD_PLL_MODE); + l &= ~0x03; + /* Enable PLL, counter function */ + l |= 0x1; + blizzard_write_reg(BLIZZARD_PLL_MODE, l); + + while (!(blizzard_read_reg(BLIZZARD_PLL_DIV) & (1 << 7))) + msleep(1); + + blizzard_restart_sdram(); + + blizzard_restore_gen_regs(); + + /* Enable display */ + blizzard_write_reg(BLIZZARD_DISPLAY_MODE, 0x01); + + /* the following will enable clocks as necessary */ + blizzard_set_update_mode(blizzard.update_mode_before_suspend); + + /* Force a background update */ + blizzard.zoom_on = 1; + update_full_screen(); + blizzard_sync(); +} + +static int blizzard_init(struct omapfb_device *fbdev, int ext_mode, + struct omapfb_mem_desc *req_vram) +{ + int r = 0, i; + u8 rev, conf; + unsigned long ext_clk; + int extif_div; + unsigned long sys_clk, pix_clk; + struct omapfb_platform_data *omapfb_conf; + struct blizzard_platform_data *ctrl_conf; + + blizzard.fbdev = fbdev; + + BUG_ON(!fbdev->ext_if || !fbdev->int_ctrl); + + blizzard.fbdev = fbdev; + blizzard.extif = fbdev->ext_if; + blizzard.int_ctrl = fbdev->int_ctrl; + + omapfb_conf = fbdev->dev->platform_data; + ctrl_conf = omapfb_conf->ctrl_platform_data; + if (ctrl_conf == NULL || ctrl_conf->get_clock_rate == NULL) { + dev_err(fbdev->dev, "s1d1374x: missing platform data\n"); + r = -ENOENT; + goto err1; + } + + blizzard.power_down = ctrl_conf->power_down; + blizzard.power_up = ctrl_conf->power_up; + + spin_lock_init(&blizzard.req_lock); + + if ((r = blizzard.int_ctrl->init(fbdev, 1, req_vram)) < 0) + goto err1; + + if ((r = blizzard.extif->init(fbdev)) < 0) + goto err2; + + blizzard_ctrl.set_color_key = blizzard.int_ctrl->set_color_key; + blizzard_ctrl.get_color_key = blizzard.int_ctrl->get_color_key; + blizzard_ctrl.setup_mem = blizzard.int_ctrl->setup_mem; + blizzard_ctrl.mmap = blizzard.int_ctrl->mmap; + + ext_clk = ctrl_conf->get_clock_rate(fbdev->dev); + if ((r = calc_extif_timings(ext_clk, &extif_div)) < 0) + goto err3; + + set_extif_timings(&blizzard.reg_timings); + + if (blizzard.power_up != NULL) + blizzard.power_up(fbdev->dev); + + calc_blizzard_clk_rates(ext_clk, &sys_clk, &pix_clk); + + if ((r = calc_extif_timings(sys_clk, &extif_div)) < 0) + goto err3; + set_extif_timings(&blizzard.reg_timings); + + if (!(blizzard_read_reg(BLIZZARD_PLL_DIV) & 0x80)) { + dev_err(fbdev->dev, + "controller not initialized by the bootloader\n"); + r = -ENODEV; + goto err3; + } + + if (ctrl_conf->te_connected) { + if ((r = setup_tearsync(pix_clk, extif_div)) < 0) + goto err3; + blizzard.te_connected = 1; + } + + rev = blizzard_read_reg(BLIZZARD_REV_CODE); + conf = blizzard_read_reg(BLIZZARD_CONFIG); + + switch (rev & 0xfc) { + case 0x9c: + blizzard.version = BLIZZARD_VERSION_S1D13744; + pr_info("omapfb: s1d13744 LCD controller rev %d " + "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07); + break; + case 0xa4: + blizzard.version = BLIZZARD_VERSION_S1D13745; + pr_info("omapfb: s1d13745 LCD controller rev %d " + "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07); + break; + default: + dev_err(fbdev->dev, "invalid s1d1374x revision %02x\n", + rev); + r = -ENODEV; + goto err3; + } + + blizzard.max_transmit_size = blizzard.extif->max_transmit_size; + + blizzard.update_mode = OMAPFB_UPDATE_DISABLED; + + blizzard.auto_update_window.x = 0; + blizzard.auto_update_window.y = 0; + blizzard.auto_update_window.width = fbdev->panel->x_res; + blizzard.auto_update_window.height = fbdev->panel->y_res; + blizzard.auto_update_window.out_x = 0; + blizzard.auto_update_window.out_x = 0; + blizzard.auto_update_window.out_width = fbdev->panel->x_res; + blizzard.auto_update_window.out_height = fbdev->panel->y_res; + blizzard.auto_update_window.format = 0; + + blizzard.screen_width = fbdev->panel->x_res; + blizzard.screen_height = fbdev->panel->y_res; + + init_timer(&blizzard.auto_update_timer); + blizzard.auto_update_timer.function = blizzard_update_window_auto; + blizzard.auto_update_timer.data = 0; + + INIT_LIST_HEAD(&blizzard.free_req_list); + INIT_LIST_HEAD(&blizzard.pending_req_list); + for (i = 0; i < ARRAY_SIZE(blizzard.req_pool); i++) + list_add(&blizzard.req_pool[i].entry, &blizzard.free_req_list); + BUG_ON(i <= IRQ_REQ_POOL_SIZE); + sema_init(&blizzard.req_sema, i - IRQ_REQ_POOL_SIZE); + + return 0; +err3: + if (blizzard.power_down != NULL) + blizzard.power_down(fbdev->dev); + blizzard.extif->cleanup(); +err2: + blizzard.int_ctrl->cleanup(); +err1: + return r; +} + +static void blizzard_cleanup(void) +{ + blizzard_set_update_mode(OMAPFB_UPDATE_DISABLED); + blizzard.extif->cleanup(); + blizzard.int_ctrl->cleanup(); + if (blizzard.power_down != NULL) + blizzard.power_down(blizzard.fbdev->dev); +} + +struct lcd_ctrl blizzard_ctrl = { + .name = "blizzard", + .init = blizzard_init, + .cleanup = blizzard_cleanup, + .bind_client = blizzard_bind_client, + .get_caps = blizzard_get_caps, + .set_update_mode = blizzard_set_update_mode, + .get_update_mode = blizzard_get_update_mode, + .setup_plane = blizzard_setup_plane, + .set_scale = blizzard_set_scale, + .enable_plane = blizzard_enable_plane, + .update_window = blizzard_update_window_async, + .sync = blizzard_sync, + .suspend = blizzard_suspend, + .resume = blizzard_resume, +}; + diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c new file mode 100644 index 000000000000..f4c23434de6f --- /dev/null +++ b/drivers/video/omap/dispc.c @@ -0,0 +1,1502 @@ +/* + * OMAP2 display controller support + * + * Copyright (C) 2005 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/vmalloc.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include <asm/arch/sram.h> +#include <asm/arch/omapfb.h> +#include <asm/arch/board.h> + +#include "dispc.h" + +#define MODULE_NAME "dispc" + +#define DSS_BASE 0x48050000 +#define DSS_SYSCONFIG 0x0010 + +#define DISPC_BASE 0x48050400 + +/* DISPC common */ +#define DISPC_REVISION 0x0000 +#define DISPC_SYSCONFIG 0x0010 +#define DISPC_SYSSTATUS 0x0014 +#define DISPC_IRQSTATUS 0x0018 +#define DISPC_IRQENABLE 0x001C +#define DISPC_CONTROL 0x0040 +#define DISPC_CONFIG 0x0044 +#define DISPC_CAPABLE 0x0048 +#define DISPC_DEFAULT_COLOR0 0x004C +#define DISPC_DEFAULT_COLOR1 0x0050 +#define DISPC_TRANS_COLOR0 0x0054 +#define DISPC_TRANS_COLOR1 0x0058 +#define DISPC_LINE_STATUS 0x005C +#define DISPC_LINE_NUMBER 0x0060 +#define DISPC_TIMING_H 0x0064 +#define DISPC_TIMING_V 0x0068 +#define DISPC_POL_FREQ 0x006C +#define DISPC_DIVISOR 0x0070 +#define DISPC_SIZE_DIG 0x0078 +#define DISPC_SIZE_LCD 0x007C + +#define DISPC_DATA_CYCLE1 0x01D4 +#define DISPC_DATA_CYCLE2 0x01D8 +#define DISPC_DATA_CYCLE3 0x01DC + +/* DISPC GFX plane */ +#define DISPC_GFX_BA0 0x0080 +#define DISPC_GFX_BA1 0x0084 +#define DISPC_GFX_POSITION 0x0088 +#define DISPC_GFX_SIZE 0x008C +#define DISPC_GFX_ATTRIBUTES 0x00A0 +#define DISPC_GFX_FIFO_THRESHOLD 0x00A4 +#define DISPC_GFX_FIFO_SIZE_STATUS 0x00A8 +#define DISPC_GFX_ROW_INC 0x00AC +#define DISPC_GFX_PIXEL_INC 0x00B0 +#define DISPC_GFX_WINDOW_SKIP 0x00B4 +#define DISPC_GFX_TABLE_BA 0x00B8 + +/* DISPC Video plane 1/2 */ +#define DISPC_VID1_BASE 0x00BC +#define DISPC_VID2_BASE 0x014C + +/* Offsets into DISPC_VID1/2_BASE */ +#define DISPC_VID_BA0 0x0000 +#define DISPC_VID_BA1 0x0004 +#define DISPC_VID_POSITION 0x0008 +#define DISPC_VID_SIZE 0x000C +#define DISPC_VID_ATTRIBUTES 0x0010 +#define DISPC_VID_FIFO_THRESHOLD 0x0014 +#define DISPC_VID_FIFO_SIZE_STATUS 0x0018 +#define DISPC_VID_ROW_INC 0x001C +#define DISPC_VID_PIXEL_INC 0x0020 +#define DISPC_VID_FIR 0x0024 +#define DISPC_VID_PICTURE_SIZE 0x0028 +#define DISPC_VID_ACCU0 0x002C +#define DISPC_VID_ACCU1 0x0030 + +/* 8 elements in 8 byte increments */ +#define DISPC_VID_FIR_COEF_H0 0x0034 +/* 8 elements in 8 byte increments */ +#define DISPC_VID_FIR_COEF_HV0 0x0038 +/* 5 elements in 4 byte increments */ +#define DISPC_VID_CONV_COEF0 0x0074 + +#define DISPC_IRQ_FRAMEMASK 0x0001 +#define DISPC_IRQ_VSYNC 0x0002 +#define DISPC_IRQ_EVSYNC_EVEN 0x0004 +#define DISPC_IRQ_EVSYNC_ODD 0x0008 +#define DISPC_IRQ_ACBIAS_COUNT_STAT 0x0010 +#define DISPC_IRQ_PROG_LINE_NUM 0x0020 +#define DISPC_IRQ_GFX_FIFO_UNDERFLOW 0x0040 +#define DISPC_IRQ_GFX_END_WIN 0x0080 +#define DISPC_IRQ_PAL_GAMMA_MASK 0x0100 +#define DISPC_IRQ_OCP_ERR 0x0200 +#define DISPC_IRQ_VID1_FIFO_UNDERFLOW 0x0400 +#define DISPC_IRQ_VID1_END_WIN 0x0800 +#define DISPC_IRQ_VID2_FIFO_UNDERFLOW 0x1000 +#define DISPC_IRQ_VID2_END_WIN 0x2000 +#define DISPC_IRQ_SYNC_LOST 0x4000 + +#define DISPC_IRQ_MASK_ALL 0x7fff + +#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \ + DISPC_IRQ_VID1_FIFO_UNDERFLOW | \ + DISPC_IRQ_VID2_FIFO_UNDERFLOW | \ + DISPC_IRQ_SYNC_LOST) + +#define RFBI_CONTROL 0x48050040 + +#define MAX_PALETTE_SIZE (256 * 16) + +#define FLD_MASK(pos, len) (((1 << len) - 1) << pos) + +#define MOD_REG_FLD(reg, mask, val) \ + dispc_write_reg((reg), (dispc_read_reg(reg) & ~(mask)) | (val)); + +#define OMAP2_SRAM_START 0x40200000 +/* Maximum size, in reality this is smaller if SRAM is partially locked. */ +#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */ + +/* We support the SDRAM / SRAM types. See OMAPFB_PLANE_MEMTYPE_* in omapfb.h */ +#define DISPC_MEMTYPE_NUM 2 + +#define RESMAP_SIZE(_page_cnt) \ + ((_page_cnt + (sizeof(unsigned long) * 8) - 1) / 8) +#define RESMAP_PTR(_res_map, _page_nr) \ + (((_res_map)->map) + (_page_nr) / (sizeof(unsigned long) * 8)) +#define RESMAP_MASK(_page_nr) \ + (1 << ((_page_nr) & (sizeof(unsigned long) * 8 - 1))) + +struct resmap { + unsigned long start; + unsigned page_cnt; + unsigned long *map; +}; + +static struct { + u32 base; + + struct omapfb_mem_desc mem_desc; + struct resmap *res_map[DISPC_MEMTYPE_NUM]; + atomic_t map_count[OMAPFB_PLANE_NUM]; + + dma_addr_t palette_paddr; + void *palette_vaddr; + + int ext_mode; + + unsigned long enabled_irqs; + void (*irq_callback)(void *); + void *irq_callback_data; + struct completion frame_done; + + int fir_hinc[OMAPFB_PLANE_NUM]; + int fir_vinc[OMAPFB_PLANE_NUM]; + + struct clk *dss_ick, *dss1_fck; + struct clk *dss_54m_fck; + + enum omapfb_update_mode update_mode; + struct omapfb_device *fbdev; + + struct omapfb_color_key color_key; +} dispc; + +static void enable_lcd_clocks(int enable); + +static void inline dispc_write_reg(int idx, u32 val) +{ + __raw_writel(val, dispc.base + idx); +} + +static u32 inline dispc_read_reg(int idx) +{ + u32 l = __raw_readl(dispc.base + idx); + return l; +} + +/* Select RFBI or bypass mode */ +static void enable_rfbi_mode(int enable) +{ + u32 l; + + l = dispc_read_reg(DISPC_CONTROL); + /* Enable RFBI, GPIO0/1 */ + l &= ~((1 << 11) | (1 << 15) | (1 << 16)); + l |= enable ? (1 << 11) : 0; + /* RFBI En: GPIO0/1=10 RFBI Dis: GPIO0/1=11 */ + l |= 1 << 15; + l |= enable ? 0 : (1 << 16); + dispc_write_reg(DISPC_CONTROL, l); + + /* Set bypass mode in RFBI module */ + l = __raw_readl(io_p2v(RFBI_CONTROL)); + l |= enable ? 0 : (1 << 1); + __raw_writel(l, io_p2v(RFBI_CONTROL)); +} + +static void set_lcd_data_lines(int data_lines) +{ + u32 l; + int code = 0; + + switch (data_lines) { + case 12: + code = 0; + break; + case 16: + code = 1; + break; + case 18: + code = 2; + break; + case 24: + code = 3; + break; + default: + BUG(); + } + + l = dispc_read_reg(DISPC_CONTROL); + l &= ~(0x03 << 8); + l |= code << 8; + dispc_write_reg(DISPC_CONTROL, l); +} + +static void set_load_mode(int mode) +{ + BUG_ON(mode & ~(DISPC_LOAD_CLUT_ONLY | DISPC_LOAD_FRAME_ONLY | + DISPC_LOAD_CLUT_ONCE_FRAME)); + MOD_REG_FLD(DISPC_CONFIG, 0x03 << 1, mode << 1); +} + +void omap_dispc_set_lcd_size(int x, int y) +{ + BUG_ON((x > (1 << 11)) || (y > (1 << 11))); + enable_lcd_clocks(1); + MOD_REG_FLD(DISPC_SIZE_LCD, FLD_MASK(16, 11) | FLD_MASK(0, 11), + ((y - 1) << 16) | (x - 1)); + enable_lcd_clocks(0); +} +EXPORT_SYMBOL(omap_dispc_set_lcd_size); + +void omap_dispc_set_digit_size(int x, int y) +{ + BUG_ON((x > (1 << 11)) || (y > (1 << 11))); + enable_lcd_clocks(1); + MOD_REG_FLD(DISPC_SIZE_DIG, FLD_MASK(16, 11) | FLD_MASK(0, 11), + ((y - 1) << 16) | (x - 1)); + enable_lcd_clocks(0); +} +EXPORT_SYMBOL(omap_dispc_set_digit_size); + +static void setup_plane_fifo(int plane, int ext_mode) +{ + const u32 ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD, + DISPC_VID1_BASE + DISPC_VID_FIFO_THRESHOLD, + DISPC_VID2_BASE + DISPC_VID_FIFO_THRESHOLD }; + const u32 fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS, + DISPC_VID1_BASE + DISPC_VID_FIFO_SIZE_STATUS, + DISPC_VID2_BASE + DISPC_VID_FIFO_SIZE_STATUS }; + int low, high; + u32 l; + + BUG_ON(plane > 2); + + l = dispc_read_reg(fsz_reg[plane]); + l &= FLD_MASK(0, 9); + if (ext_mode) { + low = l * 3 / 4; + high = l; + } else { + low = l / 4; + high = l * 3 / 4; + } + MOD_REG_FLD(ftrs_reg[plane], FLD_MASK(16, 9) | FLD_MASK(0, 9), + (high << 16) | low); +} + +void omap_dispc_enable_lcd_out(int enable) +{ + enable_lcd_clocks(1); + MOD_REG_FLD(DISPC_CONTROL, 1, enable ? 1 : 0); + enable_lcd_clocks(0); +} +EXPORT_SYMBOL(omap_dispc_enable_lcd_out); + +void omap_dispc_enable_digit_out(int enable) +{ + enable_lcd_clocks(1); + MOD_REG_FLD(DISPC_CONTROL, 1 << 1, enable ? 1 << 1 : 0); + enable_lcd_clocks(0); +} +EXPORT_SYMBOL(omap_dispc_enable_digit_out); + +static inline int _setup_plane(int plane, int channel_out, + u32 paddr, int screen_width, + int pos_x, int pos_y, int width, int height, + int color_mode) +{ + const u32 at_reg[] = { DISPC_GFX_ATTRIBUTES, + DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES, + DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES }; + const u32 ba_reg[] = { DISPC_GFX_BA0, DISPC_VID1_BASE + DISPC_VID_BA0, + DISPC_VID2_BASE + DISPC_VID_BA0 }; + const u32 ps_reg[] = { DISPC_GFX_POSITION, + DISPC_VID1_BASE + DISPC_VID_POSITION, + DISPC_VID2_BASE + DISPC_VID_POSITION }; + const u32 sz_reg[] = { DISPC_GFX_SIZE, + DISPC_VID1_BASE + DISPC_VID_PICTURE_SIZE, + DISPC_VID2_BASE + DISPC_VID_PICTURE_SIZE }; + const u32 ri_reg[] = { DISPC_GFX_ROW_INC, + DISPC_VID1_BASE + DISPC_VID_ROW_INC, + DISPC_VID2_BASE + DISPC_VID_ROW_INC }; + const u32 vs_reg[] = { 0, DISPC_VID1_BASE + DISPC_VID_SIZE, + DISPC_VID2_BASE + DISPC_VID_SIZE }; + + int chout_shift, burst_shift; + int chout_val; + int color_code; + int bpp; + int cconv_en; + int set_vsize; + u32 l; + +#ifdef VERBOSE + dev_dbg(dispc.fbdev->dev, "plane %d channel %d paddr %#08x scr_width %d" + " pos_x %d pos_y %d width %d height %d color_mode %d\n", + plane, channel_out, paddr, screen_width, pos_x, pos_y, + width, height, color_mode); +#endif + + set_vsize = 0; + switch (plane) { + case OMAPFB_PLANE_GFX: + burst_shift = 6; + chout_shift = 8; + break; + case OMAPFB_PLANE_VID1: + case OMAPFB_PLANE_VID2: + burst_shift = 14; + chout_shift = 16; + set_vsize = 1; + break; + default: + return -EINVAL; + } + + switch (channel_out) { + case OMAPFB_CHANNEL_OUT_LCD: + chout_val = 0; + break; + case OMAPFB_CHANNEL_OUT_DIGIT: + chout_val = 1; + break; + default: + return -EINVAL; + } + + cconv_en = 0; + switch (color_mode) { + case OMAPFB_COLOR_RGB565: + color_code = DISPC_RGB_16_BPP; + bpp = 16; + break; + case OMAPFB_COLOR_YUV422: + if (plane == 0) + return -EINVAL; + color_code = DISPC_UYVY_422; + cconv_en = 1; + bpp = 16; + break; + case OMAPFB_COLOR_YUY422: + if (plane == 0) + return -EINVAL; + color_code = DISPC_YUV2_422; + cconv_en = 1; + bpp = 16; + break; + default: + return -EINVAL; + } + + l = dispc_read_reg(at_reg[plane]); + + l &= ~(0x0f << 1); + l |= color_code << 1; + l &= ~(1 << 9); + l |= cconv_en << 9; + + l &= ~(0x03 << burst_shift); + l |= DISPC_BURST_8x32 << burst_shift; + + l &= ~(1 << chout_shift); + l |= chout_val << chout_shift; + + dispc_write_reg(at_reg[plane], l); + + dispc_write_reg(ba_reg[plane], paddr); + MOD_REG_FLD(ps_reg[plane], + FLD_MASK(16, 11) | FLD_MASK(0, 11), (pos_y << 16) | pos_x); + + MOD_REG_FLD(sz_reg[plane], FLD_MASK(16, 11) | FLD_MASK(0, 11), + ((height - 1) << 16) | (width - 1)); + + if (set_vsize) { + /* Set video size if set_scale hasn't set it */ + if (!dispc.fir_vinc[plane]) + MOD_REG_FLD(vs_reg[plane], + FLD_MASK(16, 11), (height - 1) << 16); + if (!dispc.fir_hinc[plane]) + MOD_REG_FLD(vs_reg[plane], + FLD_MASK(0, 11), width - 1); + } + + dispc_write_reg(ri_reg[plane], (screen_width - width) * bpp / 8 + 1); + + return height * screen_width * bpp / 8; +} + +static int omap_dispc_setup_plane(int plane, int channel_out, + unsigned long offset, + int screen_width, + int pos_x, int pos_y, int width, int height, + int color_mode) +{ + u32 paddr; + int r; + + if ((unsigned)plane > dispc.mem_desc.region_cnt) + return -EINVAL; + paddr = dispc.mem_desc.region[plane].paddr + offset; + enable_lcd_clocks(1); + r = _setup_plane(plane, channel_out, paddr, + screen_width, + pos_x, pos_y, width, height, color_mode); + enable_lcd_clocks(0); + return r; +} + +static void write_firh_reg(int plane, int reg, u32 value) +{ + u32 base; + + if (plane == 1) + base = DISPC_VID1_BASE + DISPC_VID_FIR_COEF_H0; + else + base = DISPC_VID2_BASE + DISPC_VID_FIR_COEF_H0; + dispc_write_reg(base + reg * 8, value); +} + +static void write_firhv_reg(int plane, int reg, u32 value) +{ + u32 base; + + if (plane == 1) + base = DISPC_VID1_BASE + DISPC_VID_FIR_COEF_HV0; + else + base = DISPC_VID2_BASE + DISPC_VID_FIR_COEF_HV0; + dispc_write_reg(base + reg * 8, value); +} + +static void set_upsampling_coef_table(int plane) +{ + const u32 coef[][2] = { + { 0x00800000, 0x00800000 }, + { 0x0D7CF800, 0x037B02FF }, + { 0x1E70F5FF, 0x0C6F05FE }, + { 0x335FF5FE, 0x205907FB }, + { 0xF74949F7, 0x00404000 }, + { 0xF55F33FB, 0x075920FE }, + { 0xF5701EFE, 0x056F0CFF }, + { 0xF87C0DFF, 0x027B0300 }, + }; + int i; + + for (i = 0; i < 8; i++) { + write_firh_reg(plane, i, coef[i][0]); + write_firhv_reg(plane, i, coef[i][1]); + } +} + +static int omap_dispc_set_scale(int plane, + int orig_width, int orig_height, + int out_width, int out_height) +{ + const u32 at_reg[] = { 0, DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES, + DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES }; + const u32 vs_reg[] = { 0, DISPC_VID1_BASE + DISPC_VID_SIZE, + DISPC_VID2_BASE + DISPC_VID_SIZE }; + const u32 fir_reg[] = { 0, DISPC_VID1_BASE + DISPC_VID_FIR, + DISPC_VID2_BASE + DISPC_VID_FIR }; + + u32 l; + int fir_hinc; + int fir_vinc; + + if ((unsigned)plane > OMAPFB_PLANE_NUM) + return -ENODEV; + + if (plane == OMAPFB_PLANE_GFX && + (out_width != orig_width || out_height != orig_height)) + return -EINVAL; + + enable_lcd_clocks(1); + if (orig_width < out_width) { + /* + * Upsampling. + * Currently you can only scale both dimensions in one way. + */ + if (orig_height > out_height || + orig_width * 8 < out_width || + orig_height * 8 < out_height) { + enable_lcd_clocks(0); + return -EINVAL; + } + set_upsampling_coef_table(plane); + } else if (orig_width > out_width) { + /* Downsampling not yet supported + */ + + enable_lcd_clocks(0); + return -EINVAL; + } + if (!orig_width || orig_width == out_width) + fir_hinc = 0; + else + fir_hinc = 1024 * orig_width / out_width; + if (!orig_height || orig_height == out_height) + fir_vinc = 0; + else + fir_vinc = 1024 * orig_height / out_height; + dispc.fir_hinc[plane] = fir_hinc; + dispc.fir_vinc[plane] = fir_vinc; + + MOD_REG_FLD(fir_reg[plane], + FLD_MASK(16, 12) | FLD_MASK(0, 12), + ((fir_vinc & 4095) << 16) | + (fir_hinc & 4095)); + + dev_dbg(dispc.fbdev->dev, "out_width %d out_height %d orig_width %d " + "orig_height %d fir_hinc %d fir_vinc %d\n", + out_width, out_height, orig_width, orig_height, + fir_hinc, fir_vinc); + + MOD_REG_FLD(vs_reg[plane], + FLD_MASK(16, 11) | FLD_MASK(0, 11), + ((out_height - 1) << 16) | (out_width - 1)); + + l = dispc_read_reg(at_reg[plane]); + l &= ~(0x03 << 5); + l |= fir_hinc ? (1 << 5) : 0; + l |= fir_vinc ? (1 << 6) : 0; + dispc_write_reg(at_reg[plane], l); + + enable_lcd_clocks(0); + return 0; +} + +static int omap_dispc_enable_plane(int plane, int enable) +{ + const u32 at_reg[] = { DISPC_GFX_ATTRIBUTES, + DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES, + DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES }; + if ((unsigned int)plane > dispc.mem_desc.region_cnt) + return -EINVAL; + + enable_lcd_clocks(1); + MOD_REG_FLD(at_reg[plane], 1, enable ? 1 : 0); + enable_lcd_clocks(0); + + return 0; +} + +static int omap_dispc_set_color_key(struct omapfb_color_key *ck) +{ + u32 df_reg, tr_reg; + int shift, val; + + switch (ck->channel_out) { + case OMAPFB_CHANNEL_OUT_LCD: + df_reg = DISPC_DEFAULT_COLOR0; + tr_reg = DISPC_TRANS_COLOR0; + shift = 10; + break; + case OMAPFB_CHANNEL_OUT_DIGIT: + df_reg = DISPC_DEFAULT_COLOR1; + tr_reg = DISPC_TRANS_COLOR1; + shift = 12; + break; + default: + return -EINVAL; + } + switch (ck->key_type) { + case OMAPFB_COLOR_KEY_DISABLED: + val = 0; + break; + case OMAPFB_COLOR_KEY_GFX_DST: + val = 1; + break; + case OMAPFB_COLOR_KEY_VID_SRC: + val = 3; + break; + default: + return -EINVAL; + } + enable_lcd_clocks(1); + MOD_REG_FLD(DISPC_CONFIG, FLD_MASK(shift, 2), val << shift); + + if (val != 0) + dispc_write_reg(tr_reg, ck->trans_key); + dispc_write_reg(df_reg, ck->background); + enable_lcd_clocks(0); + + dispc.color_key = *ck; + + return 0; +} + +static int omap_dispc_get_color_key(struct omapfb_color_key *ck) +{ + *ck = dispc.color_key; + return 0; +} + +static void load_palette(void) +{ +} + +static int omap_dispc_set_update_mode(enum omapfb_update_mode mode) +{ + int r = 0; + + if (mode != dispc.update_mode) { + switch (mode) { + case OMAPFB_AUTO_UPDATE: + case OMAPFB_MANUAL_UPDATE: + enable_lcd_clocks(1); + omap_dispc_enable_lcd_out(1); + dispc.update_mode = mode; + break; + case OMAPFB_UPDATE_DISABLED: + init_completion(&dispc.frame_done); + omap_dispc_enable_lcd_out(0); + if (!wait_for_completion_timeout(&dispc.frame_done, + msecs_to_jiffies(500))) { + dev_err(dispc.fbdev->dev, + "timeout waiting for FRAME DONE\n"); + } + dispc.update_mode = mode; + enable_lcd_clocks(0); + break; + default: + r = -EINVAL; + } + } + + return r; +} + +static void omap_dispc_get_caps(int plane, struct omapfb_caps *caps) +{ + caps->ctrl |= OMAPFB_CAPS_PLANE_RELOCATE_MEM; + if (plane > 0) + caps->ctrl |= OMAPFB_CAPS_PLANE_SCALE; + caps->plane_color |= (1 << OMAPFB_COLOR_RGB565) | + (1 << OMAPFB_COLOR_YUV422) | + (1 << OMAPFB_COLOR_YUY422); + if (plane == 0) + caps->plane_color |= (1 << OMAPFB_COLOR_CLUT_8BPP) | + (1 << OMAPFB_COLOR_CLUT_4BPP) | + (1 << OMAPFB_COLOR_CLUT_2BPP) | + (1 << OMAPFB_COLOR_CLUT_1BPP) | + (1 << OMAPFB_COLOR_RGB444); +} + +static enum omapfb_update_mode omap_dispc_get_update_mode(void) +{ + return dispc.update_mode; +} + +static void setup_color_conv_coef(void) +{ + u32 mask = FLD_MASK(16, 11) | FLD_MASK(0, 11); + int cf1_reg = DISPC_VID1_BASE + DISPC_VID_CONV_COEF0; + int cf2_reg = DISPC_VID2_BASE + DISPC_VID_CONV_COEF0; + int at1_reg = DISPC_VID1_BASE + DISPC_VID_ATTRIBUTES; + int at2_reg = DISPC_VID2_BASE + DISPC_VID_ATTRIBUTES; + const struct color_conv_coef { + int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb; + int full_range; + } ctbl_bt601_5 = { + 298, 409, 0, 298, -208, -100, 298, 0, 517, 0, + }; + const struct color_conv_coef *ct; +#define CVAL(x, y) (((x & 2047) << 16) | (y & 2047)) + + ct = &ctbl_bt601_5; + + MOD_REG_FLD(cf1_reg, mask, CVAL(ct->rcr, ct->ry)); + MOD_REG_FLD(cf1_reg + 4, mask, CVAL(ct->gy, ct->rcb)); + MOD_REG_FLD(cf1_reg + 8, mask, CVAL(ct->gcb, ct->gcr)); + MOD_REG_FLD(cf1_reg + 12, mask, CVAL(ct->bcr, ct->by)); + MOD_REG_FLD(cf1_reg + 16, mask, CVAL(0, ct->bcb)); + + MOD_REG_FLD(cf2_reg, mask, CVAL(ct->rcr, ct->ry)); + MOD_REG_FLD(cf2_reg + 4, mask, CVAL(ct->gy, ct->rcb)); + MOD_REG_FLD(cf2_reg + 8, mask, CVAL(ct->gcb, ct->gcr)); + MOD_REG_FLD(cf2_reg + 12, mask, CVAL(ct->bcr, ct->by)); + MOD_REG_FLD(cf2_reg + 16, mask, CVAL(0, ct->bcb)); +#undef CVAL + + MOD_REG_FLD(at1_reg, (1 << 11), ct->full_range); + MOD_REG_FLD(at2_reg, (1 << 11), ct->full_range); +} + +static void calc_ck_div(int is_tft, int pck, int *lck_div, int *pck_div) +{ + unsigned long fck, lck; + + *lck_div = 1; + pck = max(1, pck); + fck = clk_get_rate(dispc.dss1_fck); + lck = fck; + *pck_div = (lck + pck - 1) / pck; + if (is_tft) + *pck_div = max(2, *pck_div); + else + *pck_div = max(3, *pck_div); + if (*pck_div > 255) { + *pck_div = 255; + lck = pck * *pck_div; + *lck_div = fck / lck; + BUG_ON(*lck_div < 1); + if (*lck_div > 255) { + *lck_div = 255; + dev_warn(dispc.fbdev->dev, "pixclock %d kHz too low.\n", + pck / 1000); + } + } +} + +static void set_lcd_tft_mode(int enable) +{ + u32 mask; + + mask = 1 << 3; + MOD_REG_FLD(DISPC_CONTROL, mask, enable ? mask : 0); +} + +static void set_lcd_timings(void) +{ + u32 l; + int lck_div, pck_div; + struct lcd_panel *panel = dispc.fbdev->panel; + int is_tft = panel->config & OMAP_LCDC_PANEL_TFT; + unsigned long fck; + + l = dispc_read_reg(DISPC_TIMING_H); + l &= ~(FLD_MASK(0, 6) | FLD_MASK(8, 8) | FLD_MASK(20, 8)); + l |= ( max(1, (min(64, panel->hsw))) - 1 ) << 0; + l |= ( max(1, (min(256, panel->hfp))) - 1 ) << 8; + l |= ( max(1, (min(256, panel->hbp))) - 1 ) << 20; + dispc_write_reg(DISPC_TIMING_H, l); + + l = dispc_read_reg(DISPC_TIMING_V); + l &= ~(FLD_MASK(0, 6) | FLD_MASK(8, 8) | FLD_MASK(20, 8)); + l |= ( max(1, (min(64, panel->vsw))) - 1 ) << 0; + l |= ( max(0, (min(255, panel->vfp))) - 0 ) << 8; + l |= ( max(0, (min(255, panel->vbp))) - 0 ) << 20; + dispc_write_reg(DISPC_TIMING_V, l); + + l = dispc_read_reg(DISPC_POL_FREQ); + l &= ~FLD_MASK(12, 6); + l |= (panel->config & OMAP_LCDC_SIGNAL_MASK) << 12; + l |= panel->acb & 0xff; + dispc_write_reg(DISPC_POL_FREQ, l); + + calc_ck_div(is_tft, panel->pixel_clock * 1000, &lck_div, &pck_div); + + l = dispc_read_reg(DISPC_DIVISOR); + l &= ~(FLD_MASK(16, 8) | FLD_MASK(0, 8)); + l |= (lck_div << 16) | (pck_div << 0); + dispc_write_reg(DISPC_DIVISOR, l); + + /* update panel info with the exact clock */ + fck = clk_get_rate(dispc.dss1_fck); + panel->pixel_clock = fck / lck_div / pck_div / 1000; +} + +int omap_dispc_request_irq(void (*callback)(void *data), void *data) +{ + int r = 0; + + BUG_ON(callback == NULL); + + if (dispc.irq_callback) + r = -EBUSY; + else { + dispc.irq_callback = callback; + dispc.irq_callback_data = data; + } + + return r; +} +EXPORT_SYMBOL(omap_dispc_request_irq); + +void omap_dispc_enable_irqs(int irq_mask) +{ + enable_lcd_clocks(1); + dispc.enabled_irqs = irq_mask; + irq_mask |= DISPC_IRQ_MASK_ERROR; + MOD_REG_FLD(DISPC_IRQENABLE, 0x7fff, irq_mask); + enable_lcd_clocks(0); +} +EXPORT_SYMBOL(omap_dispc_enable_irqs); + +void omap_dispc_disable_irqs(int irq_mask) +{ + enable_lcd_clocks(1); + dispc.enabled_irqs &= ~irq_mask; + irq_mask &= ~DISPC_IRQ_MASK_ERROR; + MOD_REG_FLD(DISPC_IRQENABLE, 0x7fff, irq_mask); + enable_lcd_clocks(0); +} +EXPORT_SYMBOL(omap_dispc_disable_irqs); + +void omap_dispc_free_irq(void) +{ + enable_lcd_clocks(1); + omap_dispc_disable_irqs(DISPC_IRQ_MASK_ALL); + dispc.irq_callback = NULL; + dispc.irq_callback_data = NULL; + enable_lcd_clocks(0); +} +EXPORT_SYMBOL(omap_dispc_free_irq); + +static irqreturn_t omap_dispc_irq_handler(int irq, void *dev) +{ + u32 stat = dispc_read_reg(DISPC_IRQSTATUS); + + if (stat & DISPC_IRQ_FRAMEMASK) + complete(&dispc.frame_done); + + if (stat & DISPC_IRQ_MASK_ERROR) { + if (printk_ratelimit()) { + dev_err(dispc.fbdev->dev, "irq error status %04x\n", + stat & 0x7fff); + } + } + + if ((stat & dispc.enabled_irqs) && dispc.irq_callback) + dispc.irq_callback(dispc.irq_callback_data); + + dispc_write_reg(DISPC_IRQSTATUS, stat); + + return IRQ_HANDLED; +} + +static int get_dss_clocks(void) +{ + if (IS_ERR((dispc.dss_ick = clk_get(dispc.fbdev->dev, "dss_ick")))) { + dev_err(dispc.fbdev->dev, "can't get dss_ick"); + return PTR_ERR(dispc.dss_ick); + } + + if (IS_ERR((dispc.dss1_fck = clk_get(dispc.fbdev->dev, "dss1_fck")))) { + dev_err(dispc.fbdev->dev, "can't get dss1_fck"); + clk_put(dispc.dss_ick); + return PTR_ERR(dispc.dss1_fck); + } + + if (IS_ERR((dispc.dss_54m_fck = + clk_get(dispc.fbdev->dev, "dss_54m_fck")))) { + dev_err(dispc.fbdev->dev, "can't get dss_54m_fck"); + clk_put(dispc.dss_ick); + clk_put(dispc.dss1_fck); + return PTR_ERR(dispc.dss_54m_fck); + } + + return 0; +} + +static void put_dss_clocks(void) +{ + clk_put(dispc.dss_54m_fck); + clk_put(dispc.dss1_fck); + clk_put(dispc.dss_ick); +} + +static void enable_lcd_clocks(int enable) +{ + if (enable) + clk_enable(dispc.dss1_fck); + else + clk_disable(dispc.dss1_fck); +} + +static void enable_interface_clocks(int enable) +{ + if (enable) + clk_enable(dispc.dss_ick); + else + clk_disable(dispc.dss_ick); +} + +static void enable_digit_clocks(int enable) +{ + if (enable) + clk_enable(dispc.dss_54m_fck); + else + clk_disable(dispc.dss_54m_fck); +} + +static void omap_dispc_suspend(void) +{ + if (dispc.update_mode == OMAPFB_AUTO_UPDATE) { + init_completion(&dispc.frame_done); + omap_dispc_enable_lcd_out(0); + if (!wait_for_completion_timeout(&dispc.frame_done, + msecs_to_jiffies(500))) { + dev_err(dispc.fbdev->dev, + "timeout waiting for FRAME DONE\n"); + } + enable_lcd_clocks(0); + } +} + +static void omap_dispc_resume(void) +{ + if (dispc.update_mode == OMAPFB_AUTO_UPDATE) { + enable_lcd_clocks(1); + if (!dispc.ext_mode) { + set_lcd_timings(); + load_palette(); + } + omap_dispc_enable_lcd_out(1); + } +} + + +static int omap_dispc_update_window(struct fb_info *fbi, + struct omapfb_update_window *win, + void (*complete_callback)(void *arg), + void *complete_callback_data) +{ + return dispc.update_mode == OMAPFB_UPDATE_DISABLED ? -ENODEV : 0; +} + +static int mmap_kern(struct omapfb_mem_region *region) +{ + struct vm_struct *kvma; + struct vm_area_struct vma; + pgprot_t pgprot; + unsigned long vaddr; + + kvma = get_vm_area(region->size, VM_IOREMAP); + if (kvma == NULL) { + dev_err(dispc.fbdev->dev, "can't get kernel vm area\n"); + return -ENOMEM; + } + vma.vm_mm = &init_mm; + + vaddr = (unsigned long)kvma->addr; + + pgprot = pgprot_writecombine(pgprot_kernel); + vma.vm_start = vaddr; + vma.vm_end = vaddr + region->size; + if (io_remap_pfn_range(&vma, vaddr, region->paddr >> PAGE_SHIFT, + region->size, pgprot) < 0) { + dev_err(dispc.fbdev->dev, "kernel mmap for FBMEM failed\n"); + return -EAGAIN; + } + region->vaddr = (void *)vaddr; + + return 0; +} + +static void mmap_user_open(struct vm_area_struct *vma) +{ + int plane = (int)vma->vm_private_data; + + atomic_inc(&dispc.map_count[plane]); +} + +static void mmap_user_close(struct vm_area_struct *vma) +{ + int plane = (int)vma->vm_private_data; + + atomic_dec(&dispc.map_count[plane]); +} + +static struct vm_operations_struct mmap_user_ops = { + .open = mmap_user_open, + .close = mmap_user_close, +}; + +static int omap_dispc_mmap_user(struct fb_info *info, + struct vm_area_struct *vma) +{ + struct omapfb_plane_struct *plane = info->par; + unsigned long off; + unsigned long start; + u32 len; + + if (vma->vm_end - vma->vm_start == 0) + return 0; + if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) + return -EINVAL; + off = vma->vm_pgoff << PAGE_SHIFT; + + start = info->fix.smem_start; + len = info->fix.smem_len; + if (off >= len) + return -EINVAL; + if ((vma->vm_end - vma->vm_start + off) > len) + return -EINVAL; + off += start; + vma->vm_pgoff = off >> PAGE_SHIFT; + vma->vm_flags |= VM_IO | VM_RESERVED; + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + vma->vm_ops = &mmap_user_ops; + vma->vm_private_data = (void *)plane->idx; + if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, vma->vm_page_prot)) + return -EAGAIN; + /* vm_ops.open won't be called for mmap itself. */ + atomic_inc(&dispc.map_count[plane->idx]); + return 0; +} + +static void unmap_kern(struct omapfb_mem_region *region) +{ + vunmap(region->vaddr); +} + +static int alloc_palette_ram(void) +{ + dispc.palette_vaddr = dma_alloc_writecombine(dispc.fbdev->dev, + MAX_PALETTE_SIZE, &dispc.palette_paddr, GFP_KERNEL); + if (dispc.palette_vaddr == NULL) { + dev_err(dispc.fbdev->dev, "failed to alloc palette memory\n"); + return -ENOMEM; + } + + return 0; +} + +static void free_palette_ram(void) +{ + dma_free_writecombine(dispc.fbdev->dev, MAX_PALETTE_SIZE, + dispc.palette_vaddr, dispc.palette_paddr); +} + +static int alloc_fbmem(struct omapfb_mem_region *region) +{ + region->vaddr = dma_alloc_writecombine(dispc.fbdev->dev, + region->size, ®ion->paddr, GFP_KERNEL); + + if (region->vaddr == NULL) { + dev_err(dispc.fbdev->dev, "unable to allocate FB DMA memory\n"); + return -ENOMEM; + } + + return 0; +} + +static void free_fbmem(struct omapfb_mem_region *region) +{ + dma_free_writecombine(dispc.fbdev->dev, region->size, + region->vaddr, region->paddr); +} + +static struct resmap *init_resmap(unsigned long start, size_t size) +{ + unsigned page_cnt; + struct resmap *res_map; + + page_cnt = PAGE_ALIGN(size) / PAGE_SIZE; + res_map = + kzalloc(sizeof(struct resmap) + RESMAP_SIZE(page_cnt), GFP_KERNEL); + if (res_map == NULL) + return NULL; + res_map->start = start; + res_map->page_cnt = page_cnt; + res_map->map = (unsigned long *)(res_map + 1); + return res_map; +} + +static void cleanup_resmap(struct resmap *res_map) +{ + kfree(res_map); +} + +static inline int resmap_mem_type(unsigned long start) +{ + if (start >= OMAP2_SRAM_START && + start < OMAP2_SRAM_START + OMAP2_SRAM_SIZE) + return OMAPFB_MEMTYPE_SRAM; + else + return OMAPFB_MEMTYPE_SDRAM; +} + +static inline int resmap_page_reserved(struct resmap *res_map, unsigned page_nr) +{ + return *RESMAP_PTR(res_map, page_nr) & RESMAP_MASK(page_nr) ? 1 : 0; +} + +static inline void resmap_reserve_page(struct resmap *res_map, unsigned page_nr) +{ + BUG_ON(resmap_page_reserved(res_map, page_nr)); + *RESMAP_PTR(res_map, page_nr) |= RESMAP_MASK(page_nr); +} + +static inline void resmap_free_page(struct resmap *res_map, unsigned page_nr) +{ + BUG_ON(!resmap_page_reserved(res_map, page_nr)); + *RESMAP_PTR(res_map, page_nr) &= ~RESMAP_MASK(page_nr); +} + +static void resmap_reserve_region(unsigned long start, size_t size) +{ + + struct resmap *res_map; + unsigned start_page; + unsigned end_page; + int mtype; + unsigned i; + + mtype = resmap_mem_type(start); + res_map = dispc.res_map[mtype]; + dev_dbg(dispc.fbdev->dev, "reserve mem type %d start %08lx size %d\n", + mtype, start, size); + start_page = (start - res_map->start) / PAGE_SIZE; + end_page = start_page + PAGE_ALIGN(size) / PAGE_SIZE; + for (i = start_page; i < end_page; i++) + resmap_reserve_page(res_map, i); +} + +static void resmap_free_region(unsigned long start, size_t size) +{ + struct resmap *res_map; + unsigned start_page; + unsigned end_page; + unsigned i; + int mtype; + + mtype = resmap_mem_type(start); + res_map = dispc.res_map[mtype]; + dev_dbg(dispc.fbdev->dev, "free mem type %d start %08lx size %d\n", + mtype, start, size); + start_page = (start - res_map->start) / PAGE_SIZE; + end_page = start_page + PAGE_ALIGN(size) / PAGE_SIZE; + for (i = start_page; i < end_page; i++) + resmap_free_page(res_map, i); +} + +static unsigned long resmap_alloc_region(int mtype, size_t size) +{ + unsigned i; + unsigned total; + unsigned start_page; + unsigned long start; + struct resmap *res_map = dispc.res_map[mtype]; + + BUG_ON(mtype >= DISPC_MEMTYPE_NUM || res_map == NULL || !size); + + size = PAGE_ALIGN(size) / PAGE_SIZE; + start_page = 0; + total = 0; + for (i = 0; i < res_map->page_cnt; i++) { + if (resmap_page_reserved(res_map, i)) { + start_page = i + 1; + total = 0; + } else if (++total == size) + break; + } + if (total < size) + return 0; + + start = res_map->start + start_page * PAGE_SIZE; + resmap_reserve_region(start, size * PAGE_SIZE); + + return start; +} + +/* Note that this will only work for user mappings, we don't deal with + * kernel mappings here, so fbcon will keep using the old region. + */ +static int omap_dispc_setup_mem(int plane, size_t size, int mem_type, + unsigned long *paddr) +{ + struct omapfb_mem_region *rg; + unsigned long new_addr = 0; + + if ((unsigned)plane > dispc.mem_desc.region_cnt) + return -EINVAL; + if (mem_type >= DISPC_MEMTYPE_NUM) + return -EINVAL; + if (dispc.res_map[mem_type] == NULL) + return -ENOMEM; + rg = &dispc.mem_desc.region[plane]; + if (size == rg->size && mem_type == rg->type) + return 0; + if (atomic_read(&dispc.map_count[plane])) + return -EBUSY; + if (rg->size != 0) + resmap_free_region(rg->paddr, rg->size); + if (size != 0) { + new_addr = resmap_alloc_region(mem_type, size); + if (!new_addr) { + /* Reallocate old region. */ + resmap_reserve_region(rg->paddr, rg->size); + return -ENOMEM; + } + } + rg->paddr = new_addr; + rg->size = size; + rg->type = mem_type; + + *paddr = new_addr; + + return 0; +} + +static int setup_fbmem(struct omapfb_mem_desc *req_md) +{ + struct omapfb_mem_region *rg; + int i; + int r; + unsigned long mem_start[DISPC_MEMTYPE_NUM]; + unsigned long mem_end[DISPC_MEMTYPE_NUM]; + + if (!req_md->region_cnt) { + dev_err(dispc.fbdev->dev, "no memory regions defined\n"); + return -ENOENT; + } + + rg = &req_md->region[0]; + memset(mem_start, 0xff, sizeof(mem_start)); + memset(mem_end, 0, sizeof(mem_end)); + + for (i = 0; i < req_md->region_cnt; i++, rg++) { + int mtype; + if (rg->paddr) { + rg->alloc = 0; + if (rg->vaddr == NULL) { + rg->map = 1; + if ((r = mmap_kern(rg)) < 0) + return r; + } + } else { + if (rg->type != OMAPFB_MEMTYPE_SDRAM) { + dev_err(dispc.fbdev->dev, + "unsupported memory type\n"); + return -EINVAL; + } + rg->alloc = rg->map = 1; + if ((r = alloc_fbmem(rg)) < 0) + return r; + } + mtype = rg->type; + + if (rg->paddr < mem_start[mtype]) + mem_start[mtype] = rg->paddr; + if (rg->paddr + rg->size > mem_end[mtype]) + mem_end[mtype] = rg->paddr + rg->size; + } + + for (i = 0; i < DISPC_MEMTYPE_NUM; i++) { + unsigned long start; + size_t size; + if (mem_end[i] == 0) + continue; + start = mem_start[i]; + size = mem_end[i] - start; + dispc.res_map[i] = init_resmap(start, size); + r = -ENOMEM; + if (dispc.res_map[i] == NULL) + goto fail; + /* Initial state is that everything is reserved. This + * includes possible holes as well, which will never be + * freed. + */ + resmap_reserve_region(start, size); + } + + dispc.mem_desc = *req_md; + + return 0; +fail: + for (i = 0; i < DISPC_MEMTYPE_NUM; i++) { + if (dispc.res_map[i] != NULL) + cleanup_resmap(dispc.res_map[i]); + } + return r; +} + +static void cleanup_fbmem(void) +{ + struct omapfb_mem_region *rg; + int i; + + for (i = 0; i < DISPC_MEMTYPE_NUM; i++) { + if (dispc.res_map[i] != NULL) + cleanup_resmap(dispc.res_map[i]); + } + rg = &dispc.mem_desc.region[0]; + for (i = 0; i < dispc.mem_desc.region_cnt; i++, rg++) { + if (rg->alloc) + free_fbmem(rg); + else { + if (rg->map) + unmap_kern(rg); + } + } +} + +static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode, + struct omapfb_mem_desc *req_vram) +{ + int r; + u32 l; + struct lcd_panel *panel = fbdev->panel; + int tmo = 10000; + int skip_init = 0; + int i; + + memset(&dispc, 0, sizeof(dispc)); + + dispc.base = io_p2v(DISPC_BASE); + dispc.fbdev = fbdev; + dispc.ext_mode = ext_mode; + + init_completion(&dispc.frame_done); + + if ((r = get_dss_clocks()) < 0) + return r; + + enable_interface_clocks(1); + enable_lcd_clocks(1); + +#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT + l = dispc_read_reg(DISPC_CONTROL); + /* LCD enabled ? */ + if (l & 1) { + pr_info("omapfb: skipping hardware initialization\n"); + skip_init = 1; + } +#endif + + if (!skip_init) { + /* Reset monitoring works only w/ the 54M clk */ + enable_digit_clocks(1); + + /* Soft reset */ + MOD_REG_FLD(DISPC_SYSCONFIG, 1 << 1, 1 << 1); + + while (!(dispc_read_reg(DISPC_SYSSTATUS) & 1)) { + if (!--tmo) { + dev_err(dispc.fbdev->dev, "soft reset failed\n"); + r = -ENODEV; + enable_digit_clocks(0); + goto fail1; + } + } + + enable_digit_clocks(0); + } + + /* Enable smart idle and autoidle */ + l = dispc_read_reg(DISPC_CONTROL); + l &= ~((3 << 12) | (3 << 3)); + l |= (2 << 12) | (2 << 3) | (1 << 0); + dispc_write_reg(DISPC_SYSCONFIG, l); + omap_writel(1 << 0, DSS_BASE + DSS_SYSCONFIG); + + /* Set functional clock autogating */ + l = dispc_read_reg(DISPC_CONFIG); + l |= 1 << 9; + dispc_write_reg(DISPC_CONFIG, l); + + l = dispc_read_reg(DISPC_IRQSTATUS); + dispc_write_reg(l, DISPC_IRQSTATUS); + + /* Enable those that we handle always */ + omap_dispc_enable_irqs(DISPC_IRQ_FRAMEMASK); + + if ((r = request_irq(INT_24XX_DSS_IRQ, omap_dispc_irq_handler, + 0, MODULE_NAME, fbdev)) < 0) { + dev_err(dispc.fbdev->dev, "can't get DSS IRQ\n"); + goto fail1; + } + + /* L3 firewall setting: enable access to OCM RAM */ + __raw_writel(0x402000b0, io_p2v(0x680050a0)); + + if ((r = alloc_palette_ram()) < 0) + goto fail2; + + if ((r = setup_fbmem(req_vram)) < 0) + goto fail3; + + if (!skip_init) { + for (i = 0; i < dispc.mem_desc.region_cnt; i++) { + memset(dispc.mem_desc.region[i].vaddr, 0, + dispc.mem_desc.region[i].size); + } + + /* Set logic clock to fck, pixel clock to fck/2 for now */ + MOD_REG_FLD(DISPC_DIVISOR, FLD_MASK(16, 8), 1 << 16); + MOD_REG_FLD(DISPC_DIVISOR, FLD_MASK(0, 8), 2 << 0); + + setup_plane_fifo(0, ext_mode); + setup_plane_fifo(1, ext_mode); + setup_plane_fifo(2, ext_mode); + + setup_color_conv_coef(); + + set_lcd_tft_mode(panel->config & OMAP_LCDC_PANEL_TFT); + set_load_mode(DISPC_LOAD_FRAME_ONLY); + + if (!ext_mode) { + set_lcd_data_lines(panel->data_lines); + omap_dispc_set_lcd_size(panel->x_res, panel->y_res); + set_lcd_timings(); + } else + set_lcd_data_lines(panel->bpp); + enable_rfbi_mode(ext_mode); + } + + l = dispc_read_reg(DISPC_REVISION); + pr_info("omapfb: DISPC version %d.%d initialized\n", + l >> 4 & 0x0f, l & 0x0f); + enable_lcd_clocks(0); + + return 0; +fail3: + free_palette_ram(); +fail2: + free_irq(INT_24XX_DSS_IRQ, fbdev); +fail1: + enable_lcd_clocks(0); + enable_interface_clocks(0); + put_dss_clocks(); + + return r; +} + +static void omap_dispc_cleanup(void) +{ + int i; + + omap_dispc_set_update_mode(OMAPFB_UPDATE_DISABLED); + /* This will also disable clocks that are on */ + for (i = 0; i < dispc.mem_desc.region_cnt; i++) + omap_dispc_enable_plane(i, 0); + cleanup_fbmem(); + free_palette_ram(); + free_irq(INT_24XX_DSS_IRQ, dispc.fbdev); + enable_interface_clocks(0); + put_dss_clocks(); +} + +const struct lcd_ctrl omap2_int_ctrl = { + .name = "internal", + .init = omap_dispc_init, + .cleanup = omap_dispc_cleanup, + .get_caps = omap_dispc_get_caps, + .set_update_mode = omap_dispc_set_update_mode, + .get_update_mode = omap_dispc_get_update_mode, + .update_window = omap_dispc_update_window, + .suspend = omap_dispc_suspend, + .resume = omap_dispc_resume, + .setup_plane = omap_dispc_setup_plane, + .setup_mem = omap_dispc_setup_mem, + .set_scale = omap_dispc_set_scale, + .enable_plane = omap_dispc_enable_plane, + .set_color_key = omap_dispc_set_color_key, + .get_color_key = omap_dispc_get_color_key, + .mmap = omap_dispc_mmap_user, +}; diff --git a/drivers/video/omap/dispc.h b/drivers/video/omap/dispc.h new file mode 100644 index 000000000000..eb1512b56ce8 --- /dev/null +++ b/drivers/video/omap/dispc.h @@ -0,0 +1,43 @@ +#ifndef _DISPC_H +#define _DISPC_H + +#include <linux/interrupt.h> + +#define DISPC_PLANE_GFX 0 +#define DISPC_PLANE_VID1 1 +#define DISPC_PLANE_VID2 2 + +#define DISPC_RGB_1_BPP 0x00 +#define DISPC_RGB_2_BPP 0x01 +#define DISPC_RGB_4_BPP 0x02 +#define DISPC_RGB_8_BPP 0x03 +#define DISPC_RGB_12_BPP 0x04 +#define DISPC_RGB_16_BPP 0x06 +#define DISPC_RGB_24_BPP 0x08 +#define DISPC_RGB_24_BPP_UNPACK_32 0x09 +#define DISPC_YUV2_422 0x0a +#define DISPC_UYVY_422 0x0b + +#define DISPC_BURST_4x32 0 +#define DISPC_BURST_8x32 1 +#define DISPC_BURST_16x32 2 + +#define DISPC_LOAD_CLUT_AND_FRAME 0x00 +#define DISPC_LOAD_CLUT_ONLY 0x01 +#define DISPC_LOAD_FRAME_ONLY 0x02 +#define DISPC_LOAD_CLUT_ONCE_FRAME 0x03 + +#define DISPC_TFT_DATA_LINES_12 0 +#define DISPC_TFT_DATA_LINES_16 1 +#define DISPC_TFT_DATA_LINES_18 2 +#define DISPC_TFT_DATA_LINES_24 3 + +extern void omap_dispc_set_lcd_size(int width, int height); + +extern void omap_dispc_enable_lcd_out(int enable); +extern void omap_dispc_enable_digit_out(int enable); + +extern int omap_dispc_request_irq(void (*callback)(void *data), void *data); +extern void omap_dispc_free_irq(void); + +#endif diff --git a/drivers/video/omap/hwa742.c b/drivers/video/omap/hwa742.c new file mode 100644 index 000000000000..dc48e02f215c --- /dev/null +++ b/drivers/video/omap/hwa742.c @@ -0,0 +1,1077 @@ +/* + * Epson HWA742 LCD controller driver + * + * Copyright (C) 2004-2005 Nokia Corporation + * Authors: Juha Yrjölä <juha.yrjola@nokia.com> + * Imre Deak <imre.deak@nokia.com> + * YUV support: Jussi Laako <jussi.laako@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/fb.h> +#include <linux/delay.h> +#include <linux/clk.h> + +#include <asm/arch/dma.h> +#include <asm/arch/omapfb.h> +#include <asm/arch/hwa742.h> + +#define HWA742_REV_CODE_REG 0x0 +#define HWA742_CONFIG_REG 0x2 +#define HWA742_PLL_DIV_REG 0x4 +#define HWA742_PLL_0_REG 0x6 +#define HWA742_PLL_1_REG 0x8 +#define HWA742_PLL_2_REG 0xa +#define HWA742_PLL_3_REG 0xc +#define HWA742_PLL_4_REG 0xe +#define HWA742_CLK_SRC_REG 0x12 +#define HWA742_PANEL_TYPE_REG 0x14 +#define HWA742_H_DISP_REG 0x16 +#define HWA742_H_NDP_REG 0x18 +#define HWA742_V_DISP_1_REG 0x1a +#define HWA742_V_DISP_2_REG 0x1c +#define HWA742_V_NDP_REG 0x1e +#define HWA742_HS_W_REG 0x20 +#define HWA742_HP_S_REG 0x22 +#define HWA742_VS_W_REG 0x24 +#define HWA742_VP_S_REG 0x26 +#define HWA742_PCLK_POL_REG 0x28 +#define HWA742_INPUT_MODE_REG 0x2a +#define HWA742_TRANSL_MODE_REG1 0x2e +#define HWA742_DISP_MODE_REG 0x34 +#define HWA742_WINDOW_TYPE 0x36 +#define HWA742_WINDOW_X_START_0 0x38 +#define HWA742_WINDOW_X_START_1 0x3a +#define HWA742_WINDOW_Y_START_0 0x3c +#define HWA742_WINDOW_Y_START_1 0x3e +#define HWA742_WINDOW_X_END_0 0x40 +#define HWA742_WINDOW_X_END_1 0x42 +#define HWA742_WINDOW_Y_END_0 0x44 +#define HWA742_WINDOW_Y_END_1 0x46 +#define HWA742_MEMORY_WRITE_LSB 0x48 +#define HWA742_MEMORY_WRITE_MSB 0x49 +#define HWA742_MEMORY_READ_0 0x4a +#define HWA742_MEMORY_READ_1 0x4c +#define HWA742_MEMORY_READ_2 0x4e +#define HWA742_POWER_SAVE 0x56 +#define HWA742_NDP_CTRL 0x58 + +#define HWA742_AUTO_UPDATE_TIME (HZ / 20) + +/* Reserve 4 request slots for requests in irq context */ +#define REQ_POOL_SIZE 24 +#define IRQ_REQ_POOL_SIZE 4 + +#define REQ_FROM_IRQ_POOL 0x01 + +#define REQ_COMPLETE 0 +#define REQ_PENDING 1 + +struct update_param { + int x, y, width, height; + int color_mode; + int flags; +}; + +struct hwa742_request { + struct list_head entry; + unsigned int flags; + + int (*handler)(struct hwa742_request *req); + void (*complete)(void *data); + void *complete_data; + + union { + struct update_param update; + struct completion *sync; + } par; +}; + +struct { + enum omapfb_update_mode update_mode; + enum omapfb_update_mode update_mode_before_suspend; + + struct timer_list auto_update_timer; + int stop_auto_update; + struct omapfb_update_window auto_update_window; + unsigned te_connected:1; + unsigned vsync_only:1; + + struct hwa742_request req_pool[REQ_POOL_SIZE]; + struct list_head pending_req_list; + struct list_head free_req_list; + struct semaphore req_sema; + spinlock_t req_lock; + + struct extif_timings reg_timings, lut_timings; + + int prev_color_mode; + int prev_flags; + int window_type; + + u32 max_transmit_size; + u32 extif_clk_period; + unsigned long pix_tx_time; + unsigned long line_upd_time; + + + struct omapfb_device *fbdev; + struct lcd_ctrl_extif *extif; + struct lcd_ctrl *int_ctrl; + + void (*power_up)(struct device *dev); + void (*power_down)(struct device *dev); +} hwa742; + +struct lcd_ctrl hwa742_ctrl; + +static u8 hwa742_read_reg(u8 reg) +{ + u8 data; + + hwa742.extif->set_bits_per_cycle(8); + hwa742.extif->write_command(®, 1); + hwa742.extif->read_data(&data, 1); + + return data; +} + +static void hwa742_write_reg(u8 reg, u8 data) +{ + hwa742.extif->set_bits_per_cycle(8); + hwa742.extif->write_command(®, 1); + hwa742.extif->write_data(&data, 1); +} + +static void set_window_regs(int x_start, int y_start, int x_end, int y_end) +{ + u8 tmp[8]; + u8 cmd; + + x_end--; + y_end--; + tmp[0] = x_start; + tmp[1] = x_start >> 8; + tmp[2] = y_start; + tmp[3] = y_start >> 8; + tmp[4] = x_end; + tmp[5] = x_end >> 8; + tmp[6] = y_end; + tmp[7] = y_end >> 8; + + hwa742.extif->set_bits_per_cycle(8); + cmd = HWA742_WINDOW_X_START_0; + + hwa742.extif->write_command(&cmd, 1); + + hwa742.extif->write_data(tmp, 8); +} + +static void set_format_regs(int conv, int transl, int flags) +{ + if (flags & OMAPFB_FORMAT_FLAG_DOUBLE) { + hwa742.window_type = ((hwa742.window_type & 0xfc) | 0x01); +#ifdef VERBOSE + dev_dbg(hwa742.fbdev->dev, "hwa742: enabled pixel doubling\n"); +#endif + } else { + hwa742.window_type = (hwa742.window_type & 0xfc); +#ifdef VERBOSE + dev_dbg(hwa742.fbdev->dev, "hwa742: disabled pixel doubling\n"); +#endif + } + + hwa742_write_reg(HWA742_INPUT_MODE_REG, conv); + hwa742_write_reg(HWA742_TRANSL_MODE_REG1, transl); + hwa742_write_reg(HWA742_WINDOW_TYPE, hwa742.window_type); +} + +static void enable_tearsync(int y, int width, int height, int screen_height, + int force_vsync) +{ + u8 b; + + b = hwa742_read_reg(HWA742_NDP_CTRL); + b |= 1 << 2; + hwa742_write_reg(HWA742_NDP_CTRL, b); + + if (likely(hwa742.vsync_only || force_vsync)) { + hwa742.extif->enable_tearsync(1, 0); + return; + } + + if (width * hwa742.pix_tx_time < hwa742.line_upd_time) { + hwa742.extif->enable_tearsync(1, 0); + return; + } + + if ((width * hwa742.pix_tx_time / 1000) * height < + (y + height) * (hwa742.line_upd_time / 1000)) { + hwa742.extif->enable_tearsync(1, 0); + return; + } + + hwa742.extif->enable_tearsync(1, y + 1); +} + +static void disable_tearsync(void) +{ + u8 b; + + hwa742.extif->enable_tearsync(0, 0); + + b = hwa742_read_reg(HWA742_NDP_CTRL); + b &= ~(1 << 2); + hwa742_write_reg(HWA742_NDP_CTRL, b); +} + +static inline struct hwa742_request *alloc_req(void) +{ + unsigned long flags; + struct hwa742_request *req; + int req_flags = 0; + + if (!in_interrupt()) + down(&hwa742.req_sema); + else + req_flags = REQ_FROM_IRQ_POOL; + + spin_lock_irqsave(&hwa742.req_lock, flags); + BUG_ON(list_empty(&hwa742.free_req_list)); + req = list_entry(hwa742.free_req_list.next, + struct hwa742_request, entry); + list_del(&req->entry); + spin_unlock_irqrestore(&hwa742.req_lock, flags); + + INIT_LIST_HEAD(&req->entry); + req->flags = req_flags; + + return req; +} + +static inline void free_req(struct hwa742_request *req) +{ + unsigned long flags; + + spin_lock_irqsave(&hwa742.req_lock, flags); + + list_del(&req->entry); + list_add(&req->entry, &hwa742.free_req_list); + if (!(req->flags & REQ_FROM_IRQ_POOL)) + up(&hwa742.req_sema); + + spin_unlock_irqrestore(&hwa742.req_lock, flags); +} + +static void process_pending_requests(void) +{ + unsigned long flags; + + spin_lock_irqsave(&hwa742.req_lock, flags); + + while (!list_empty(&hwa742.pending_req_list)) { + struct hwa742_request *req; + void (*complete)(void *); + void *complete_data; + + req = list_entry(hwa742.pending_req_list.next, + struct hwa742_request, entry); + spin_unlock_irqrestore(&hwa742.req_lock, flags); + + if (req->handler(req) == REQ_PENDING) + return; + + complete = req->complete; + complete_data = req->complete_data; + free_req(req); + + if (complete) + complete(complete_data); + + spin_lock_irqsave(&hwa742.req_lock, flags); + } + + spin_unlock_irqrestore(&hwa742.req_lock, flags); +} + +static void submit_req_list(struct list_head *head) +{ + unsigned long flags; + int process = 1; + + spin_lock_irqsave(&hwa742.req_lock, flags); + if (likely(!list_empty(&hwa742.pending_req_list))) + process = 0; + list_splice_init(head, hwa742.pending_req_list.prev); + spin_unlock_irqrestore(&hwa742.req_lock, flags); + + if (process) + process_pending_requests(); +} + +static void request_complete(void *data) +{ + struct hwa742_request *req = (struct hwa742_request *)data; + void (*complete)(void *); + void *complete_data; + + complete = req->complete; + complete_data = req->complete_data; + + free_req(req); + + if (complete) + complete(complete_data); + + process_pending_requests(); +} + +static int send_frame_handler(struct hwa742_request *req) +{ + struct update_param *par = &req->par.update; + int x = par->x; + int y = par->y; + int w = par->width; + int h = par->height; + int bpp; + int conv, transl; + unsigned long offset; + int color_mode = par->color_mode; + int flags = par->flags; + int scr_width = hwa742.fbdev->panel->x_res; + int scr_height = hwa742.fbdev->panel->y_res; + +#ifdef VERBOSE + dev_dbg(hwa742.fbdev->dev, "x %d y %d w %d h %d scr_width %d " + "color_mode %d flags %d\n", + x, y, w, h, scr_width, color_mode, flags); +#endif + + switch (color_mode) { + case OMAPFB_COLOR_YUV422: + bpp = 16; + conv = 0x08; + transl = 0x25; + break; + case OMAPFB_COLOR_YUV420: + bpp = 12; + conv = 0x09; + transl = 0x25; + break; + case OMAPFB_COLOR_RGB565: + bpp = 16; + conv = 0x01; + transl = 0x05; + break; + default: + return -EINVAL; + } + + if (hwa742.prev_flags != flags || + hwa742.prev_color_mode != color_mode) { + set_format_regs(conv, transl, flags); + hwa742.prev_color_mode = color_mode; + hwa742.prev_flags = flags; + } + flags = req->par.update.flags; + if (flags & OMAPFB_FORMAT_FLAG_TEARSYNC) + enable_tearsync(y, scr_width, h, scr_height, + flags & OMAPFB_FORMAT_FLAG_FORCE_VSYNC); + else + disable_tearsync(); + + set_window_regs(x, y, x + w, y + h); + + offset = (scr_width * y + x) * bpp / 8; + + hwa742.int_ctrl->setup_plane(OMAPFB_PLANE_GFX, + OMAPFB_CHANNEL_OUT_LCD, offset, scr_width, 0, 0, w, h, + color_mode); + + hwa742.extif->set_bits_per_cycle(16); + + hwa742.int_ctrl->enable_plane(OMAPFB_PLANE_GFX, 1); + hwa742.extif->transfer_area(w, h, request_complete, req); + + return REQ_PENDING; +} + +static void send_frame_complete(void *data) +{ + hwa742.int_ctrl->enable_plane(OMAPFB_PLANE_GFX, 0); +} + +#define ADD_PREQ(_x, _y, _w, _h) do { \ + req = alloc_req(); \ + req->handler = send_frame_handler; \ + req->complete = send_frame_complete; \ + req->par.update.x = _x; \ + req->par.update.y = _y; \ + req->par.update.width = _w; \ + req->par.update.height = _h; \ + req->par.update.color_mode = color_mode;\ + req->par.update.flags = flags; \ + list_add_tail(&req->entry, req_head); \ +} while(0) + +static void create_req_list(struct omapfb_update_window *win, + struct list_head *req_head) +{ + struct hwa742_request *req; + int x = win->x; + int y = win->y; + int width = win->width; + int height = win->height; + int color_mode; + int flags; + + flags = win->format & ~OMAPFB_FORMAT_MASK; + color_mode = win->format & OMAPFB_FORMAT_MASK; + + if (x & 1) { + ADD_PREQ(x, y, 1, height); + width--; + x++; + flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC; + } + if (width & ~1) { + unsigned int xspan = width & ~1; + unsigned int ystart = y; + unsigned int yspan = height; + + if (xspan * height * 2 > hwa742.max_transmit_size) { + yspan = hwa742.max_transmit_size / (xspan * 2); + ADD_PREQ(x, ystart, xspan, yspan); + ystart += yspan; + yspan = height - yspan; + flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC; + } + + ADD_PREQ(x, ystart, xspan, yspan); + x += xspan; + width -= xspan; + flags &= ~OMAPFB_FORMAT_FLAG_TEARSYNC; + } + if (width) + ADD_PREQ(x, y, 1, height); +} + +static void auto_update_complete(void *data) +{ + if (!hwa742.stop_auto_update) + mod_timer(&hwa742.auto_update_timer, + jiffies + HWA742_AUTO_UPDATE_TIME); +} + +static void hwa742_update_window_auto(unsigned long arg) +{ + LIST_HEAD(req_list); + struct hwa742_request *last; + + create_req_list(&hwa742.auto_update_window, &req_list); + last = list_entry(req_list.prev, struct hwa742_request, entry); + + last->complete = auto_update_complete; + last->complete_data = NULL; + + submit_req_list(&req_list); +} + +int hwa742_update_window_async(struct fb_info *fbi, + struct omapfb_update_window *win, + void (*complete_callback)(void *arg), + void *complete_callback_data) +{ + LIST_HEAD(req_list); + struct hwa742_request *last; + int r = 0; + + if (hwa742.update_mode != OMAPFB_MANUAL_UPDATE) { + dev_dbg(hwa742.fbdev->dev, "invalid update mode\n"); + r = -EINVAL; + goto out; + } + if (unlikely(win->format & + ~(0x03 | OMAPFB_FORMAT_FLAG_DOUBLE | + OMAPFB_FORMAT_FLAG_TEARSYNC | OMAPFB_FORMAT_FLAG_FORCE_VSYNC))) { + dev_dbg(hwa742.fbdev->dev, "invalid window flag"); + r = -EINVAL; + goto out; + } + + create_req_list(win, &req_list); + last = list_entry(req_list.prev, struct hwa742_request, entry); + + last->complete = complete_callback; + last->complete_data = (void *)complete_callback_data; + + submit_req_list(&req_list); + +out: + return r; +} +EXPORT_SYMBOL(hwa742_update_window_async); + +static int hwa742_setup_plane(int plane, int channel_out, + unsigned long offset, int screen_width, + int pos_x, int pos_y, int width, int height, + int color_mode) +{ + if (plane != OMAPFB_PLANE_GFX || + channel_out != OMAPFB_CHANNEL_OUT_LCD) + return -EINVAL; + + return 0; +} + +static int hwa742_enable_plane(int plane, int enable) +{ + if (plane != 0) + return -EINVAL; + + hwa742.int_ctrl->enable_plane(plane, enable); + + return 0; +} + +static int sync_handler(struct hwa742_request *req) +{ + complete(req->par.sync); + return REQ_COMPLETE; +} + +static void hwa742_sync(void) +{ + LIST_HEAD(req_list); + struct hwa742_request *req; + struct completion comp; + + req = alloc_req(); + + req->handler = sync_handler; + req->complete = NULL; + init_completion(&comp); + req->par.sync = ∁ + + list_add(&req->entry, &req_list); + submit_req_list(&req_list); + + wait_for_completion(&comp); +} + +static void hwa742_bind_client(struct omapfb_notifier_block *nb) +{ + dev_dbg(hwa742.fbdev->dev, "update_mode %d\n", hwa742.update_mode); + if (hwa742.update_mode == OMAPFB_MANUAL_UPDATE) { + omapfb_notify_clients(hwa742.fbdev, OMAPFB_EVENT_READY); + } +} + +static int hwa742_set_update_mode(enum omapfb_update_mode mode) +{ + if (mode != OMAPFB_MANUAL_UPDATE && mode != OMAPFB_AUTO_UPDATE && + mode != OMAPFB_UPDATE_DISABLED) + return -EINVAL; + + if (mode == hwa742.update_mode) + return 0; + + dev_info(hwa742.fbdev->dev, "HWA742: setting update mode to %s\n", + mode == OMAPFB_UPDATE_DISABLED ? "disabled" : + (mode == OMAPFB_AUTO_UPDATE ? "auto" : "manual")); + + switch (hwa742.update_mode) { + case OMAPFB_MANUAL_UPDATE: + omapfb_notify_clients(hwa742.fbdev, OMAPFB_EVENT_DISABLED); + break; + case OMAPFB_AUTO_UPDATE: + hwa742.stop_auto_update = 1; + del_timer_sync(&hwa742.auto_update_timer); + break; + case OMAPFB_UPDATE_DISABLED: + break; + } + + hwa742.update_mode = mode; + hwa742_sync(); + hwa742.stop_auto_update = 0; + + switch (mode) { + case OMAPFB_MANUAL_UPDATE: + omapfb_notify_clients(hwa742.fbdev, OMAPFB_EVENT_READY); + break; + case OMAPFB_AUTO_UPDATE: + hwa742_update_window_auto(0); + break; + case OMAPFB_UPDATE_DISABLED: + break; + } + + return 0; +} + +static enum omapfb_update_mode hwa742_get_update_mode(void) +{ + return hwa742.update_mode; +} + +static unsigned long round_to_extif_ticks(unsigned long ps, int div) +{ + int bus_tick = hwa742.extif_clk_period * div; + return (ps + bus_tick - 1) / bus_tick * bus_tick; +} + +static int calc_reg_timing(unsigned long sysclk, int div) +{ + struct extif_timings *t; + unsigned long systim; + + /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns, + * AccessTime 2 ns + 12.2 ns (regs), + * WEOffTime = WEOnTime + 1 ns, + * REOffTime = REOnTime + 16 ns (regs), + * CSOffTime = REOffTime + 1 ns + * ReadCycle = 2ns + 2*SYSCLK (regs), + * WriteCycle = 2*SYSCLK + 2 ns, + * CSPulseWidth = 10 ns */ + systim = 1000000000 / (sysclk / 1000); + dev_dbg(hwa742.fbdev->dev, "HWA742 systim %lu ps extif_clk_period %u ps" + "extif_clk_div %d\n", systim, hwa742.extif_clk_period, div); + + t = &hwa742.reg_timings; + memset(t, 0, sizeof(*t)); + t->clk_div = div; + t->cs_on_time = 0; + t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->access_time = round_to_extif_ticks(t->re_on_time + 12200, div); + t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div); + t->re_off_time = round_to_extif_ticks(t->re_on_time + 16000, div); + t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div); + t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); + if (t->we_cycle_time < t->we_off_time) + t->we_cycle_time = t->we_off_time; + t->re_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); + if (t->re_cycle_time < t->re_off_time) + t->re_cycle_time = t->re_off_time; + t->cs_pulse_width = 0; + + dev_dbg(hwa742.fbdev->dev, "[reg]cson %d csoff %d reon %d reoff %d\n", + t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); + dev_dbg(hwa742.fbdev->dev, "[reg]weon %d weoff %d recyc %d wecyc %d\n", + t->we_on_time, t->we_off_time, t->re_cycle_time, + t->we_cycle_time); + dev_dbg(hwa742.fbdev->dev, "[reg]rdaccess %d cspulse %d\n", + t->access_time, t->cs_pulse_width); + + return hwa742.extif->convert_timings(t); +} + +static int calc_lut_timing(unsigned long sysclk, int div) +{ + struct extif_timings *t; + unsigned long systim; + + /* CSOnTime 0, WEOnTime 2 ns, REOnTime 2 ns, + * AccessTime 2 ns + 4 * SYSCLK + 26 (lut), + * WEOffTime = WEOnTime + 1 ns, + * REOffTime = REOnTime + 4*SYSCLK + 26 ns (lut), + * CSOffTime = REOffTime + 1 ns + * ReadCycle = 2ns + 4*SYSCLK + 26 ns (lut), + * WriteCycle = 2*SYSCLK + 2 ns, + * CSPulseWidth = 10 ns + */ + systim = 1000000000 / (sysclk / 1000); + dev_dbg(hwa742.fbdev->dev, "HWA742 systim %lu ps extif_clk_period %u ps" + "extif_clk_div %d\n", systim, hwa742.extif_clk_period, div); + + t = &hwa742.lut_timings; + memset(t, 0, sizeof(*t)); + + t->clk_div = div; + + t->cs_on_time = 0; + t->we_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->re_on_time = round_to_extif_ticks(t->cs_on_time + 2000, div); + t->access_time = round_to_extif_ticks(t->re_on_time + 4 * systim + + 26000, div); + t->we_off_time = round_to_extif_ticks(t->we_on_time + 1000, div); + t->re_off_time = round_to_extif_ticks(t->re_on_time + 4 * systim + + 26000, div); + t->cs_off_time = round_to_extif_ticks(t->re_off_time + 1000, div); + t->we_cycle_time = round_to_extif_ticks(2 * systim + 2000, div); + if (t->we_cycle_time < t->we_off_time) + t->we_cycle_time = t->we_off_time; + t->re_cycle_time = round_to_extif_ticks(2000 + 4 * systim + 26000, div); + if (t->re_cycle_time < t->re_off_time) + t->re_cycle_time = t->re_off_time; + t->cs_pulse_width = 0; + + dev_dbg(hwa742.fbdev->dev, "[lut]cson %d csoff %d reon %d reoff %d\n", + t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); + dev_dbg(hwa742.fbdev->dev, "[lut]weon %d weoff %d recyc %d wecyc %d\n", + t->we_on_time, t->we_off_time, t->re_cycle_time, + t->we_cycle_time); + dev_dbg(hwa742.fbdev->dev, "[lut]rdaccess %d cspulse %d\n", + t->access_time, t->cs_pulse_width); + + return hwa742.extif->convert_timings(t); +} + +static int calc_extif_timings(unsigned long sysclk, int *extif_mem_div) +{ + int max_clk_div; + int div; + + hwa742.extif->get_clk_info(&hwa742.extif_clk_period, &max_clk_div); + for (div = 1; div < max_clk_div; div++) { + if (calc_reg_timing(sysclk, div) == 0) + break; + } + if (div > max_clk_div) + goto err; + + *extif_mem_div = div; + + for (div = 1; div < max_clk_div; div++) { + if (calc_lut_timing(sysclk, div) == 0) + break; + } + + if (div > max_clk_div) + goto err; + + return 0; + +err: + dev_err(hwa742.fbdev->dev, "can't setup timings\n"); + return -1; +} + +static void calc_hwa742_clk_rates(unsigned long ext_clk, + unsigned long *sys_clk, unsigned long *pix_clk) +{ + int pix_clk_src; + int sys_div = 0, sys_mul = 0; + int pix_div; + + pix_clk_src = hwa742_read_reg(HWA742_CLK_SRC_REG); + pix_div = ((pix_clk_src >> 3) & 0x1f) + 1; + if ((pix_clk_src & (0x3 << 1)) == 0) { + /* Source is the PLL */ + sys_div = (hwa742_read_reg(HWA742_PLL_DIV_REG) & 0x3f) + 1; + sys_mul = (hwa742_read_reg(HWA742_PLL_4_REG) & 0x7f) + 1; + *sys_clk = ext_clk * sys_mul / sys_div; + } else /* else source is ext clk, or oscillator */ + *sys_clk = ext_clk; + + *pix_clk = *sys_clk / pix_div; /* HZ */ + dev_dbg(hwa742.fbdev->dev, + "ext_clk %ld pix_src %d pix_div %d sys_div %d sys_mul %d\n", + ext_clk, pix_clk_src & (0x3 << 1), pix_div, sys_div, sys_mul); + dev_dbg(hwa742.fbdev->dev, "sys_clk %ld pix_clk %ld\n", + *sys_clk, *pix_clk); +} + + +static int setup_tearsync(unsigned long pix_clk, int extif_div) +{ + int hdisp, vdisp; + int hndp, vndp; + int hsw, vsw; + int hs, vs; + int hs_pol_inv, vs_pol_inv; + int use_hsvs, use_ndp; + u8 b; + + hsw = hwa742_read_reg(HWA742_HS_W_REG); + vsw = hwa742_read_reg(HWA742_VS_W_REG); + hs_pol_inv = !(hsw & 0x80); + vs_pol_inv = !(vsw & 0x80); + hsw = hsw & 0x7f; + vsw = vsw & 0x3f; + + hdisp = (hwa742_read_reg(HWA742_H_DISP_REG) & 0x7f) * 8; + vdisp = hwa742_read_reg(HWA742_V_DISP_1_REG) + + ((hwa742_read_reg(HWA742_V_DISP_2_REG) & 0x3) << 8); + + hndp = hwa742_read_reg(HWA742_H_NDP_REG) & 0x7f; + vndp = hwa742_read_reg(HWA742_V_NDP_REG); + + /* time to transfer one pixel (16bpp) in ps */ + hwa742.pix_tx_time = hwa742.reg_timings.we_cycle_time; + if (hwa742.extif->get_max_tx_rate != NULL) { + /* + * The external interface might have a rate limitation, + * if so, we have to maximize our transfer rate. + */ + unsigned long min_tx_time; + unsigned long max_tx_rate = hwa742.extif->get_max_tx_rate(); + + dev_dbg(hwa742.fbdev->dev, "max_tx_rate %ld HZ\n", + max_tx_rate); + min_tx_time = 1000000000 / (max_tx_rate / 1000); /* ps */ + if (hwa742.pix_tx_time < min_tx_time) + hwa742.pix_tx_time = min_tx_time; + } + + /* time to update one line in ps */ + hwa742.line_upd_time = (hdisp + hndp) * 1000000 / (pix_clk / 1000); + hwa742.line_upd_time *= 1000; + if (hdisp * hwa742.pix_tx_time > hwa742.line_upd_time) + /* + * transfer speed too low, we might have to use both + * HS and VS + */ + use_hsvs = 1; + else + /* decent transfer speed, we'll always use only VS */ + use_hsvs = 0; + + if (use_hsvs && (hs_pol_inv || vs_pol_inv)) { + /* + * HS or'ed with VS doesn't work, use the active high + * TE signal based on HNDP / VNDP + */ + use_ndp = 1; + hs_pol_inv = 0; + vs_pol_inv = 0; + hs = hndp; + vs = vndp; + } else { + /* + * Use HS or'ed with VS as a TE signal if both are needed + * or VNDP if only vsync is needed. + */ + use_ndp = 0; + hs = hsw; + vs = vsw; + if (!use_hsvs) { + hs_pol_inv = 0; + vs_pol_inv = 0; + } + } + + hs = hs * 1000000 / (pix_clk / 1000); /* ps */ + hs *= 1000; + + vs = vs * (hdisp + hndp) * 1000000 / (pix_clk / 1000); /* ps */ + vs *= 1000; + + if (vs <= hs) + return -EDOM; + /* set VS to 120% of HS to minimize VS detection time */ + vs = hs * 12 / 10; + /* minimize HS too */ + hs = 10000; + + b = hwa742_read_reg(HWA742_NDP_CTRL); + b &= ~0x3; + b |= use_hsvs ? 1 : 0; + b |= (use_ndp && use_hsvs) ? 0 : 2; + hwa742_write_reg(HWA742_NDP_CTRL, b); + + hwa742.vsync_only = !use_hsvs; + + dev_dbg(hwa742.fbdev->dev, + "pix_clk %ld HZ pix_tx_time %ld ps line_upd_time %ld ps\n", + pix_clk, hwa742.pix_tx_time, hwa742.line_upd_time); + dev_dbg(hwa742.fbdev->dev, + "hs %d ps vs %d ps mode %d vsync_only %d\n", + hs, vs, (b & 0x3), !use_hsvs); + + return hwa742.extif->setup_tearsync(1, hs, vs, + hs_pol_inv, vs_pol_inv, extif_div); +} + +static void hwa742_get_caps(int plane, struct omapfb_caps *caps) +{ + hwa742.int_ctrl->get_caps(plane, caps); + caps->ctrl |= OMAPFB_CAPS_MANUAL_UPDATE | + OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE; + if (hwa742.te_connected) + caps->ctrl |= OMAPFB_CAPS_TEARSYNC; + caps->wnd_color |= (1 << OMAPFB_COLOR_RGB565) | + (1 << OMAPFB_COLOR_YUV420); +} + +static void hwa742_suspend(void) +{ + hwa742.update_mode_before_suspend = hwa742.update_mode; + hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED); + /* Enable sleep mode */ + hwa742_write_reg(HWA742_POWER_SAVE, 1 << 1); + if (hwa742.power_down != NULL) + hwa742.power_down(hwa742.fbdev->dev); +} + +static void hwa742_resume(void) +{ + if (hwa742.power_up != NULL) + hwa742.power_up(hwa742.fbdev->dev); + /* Disable sleep mode */ + hwa742_write_reg(HWA742_POWER_SAVE, 0); + while (1) { + /* Loop until PLL output is stabilized */ + if (hwa742_read_reg(HWA742_PLL_DIV_REG) & (1 << 7)) + break; + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(msecs_to_jiffies(5)); + } + hwa742_set_update_mode(hwa742.update_mode_before_suspend); +} + +static int hwa742_init(struct omapfb_device *fbdev, int ext_mode, + struct omapfb_mem_desc *req_vram) +{ + int r = 0, i; + u8 rev, conf; + unsigned long ext_clk; + unsigned long sys_clk, pix_clk; + int extif_mem_div; + struct omapfb_platform_data *omapfb_conf; + struct hwa742_platform_data *ctrl_conf; + + BUG_ON(!fbdev->ext_if || !fbdev->int_ctrl); + + hwa742.fbdev = fbdev; + hwa742.extif = fbdev->ext_if; + hwa742.int_ctrl = fbdev->int_ctrl; + + omapfb_conf = fbdev->dev->platform_data; + ctrl_conf = omapfb_conf->ctrl_platform_data; + + if (ctrl_conf == NULL || ctrl_conf->get_clock_rate == NULL) { + dev_err(fbdev->dev, "HWA742: missing platform data\n"); + r = -ENOENT; + goto err1; + } + + hwa742.power_down = ctrl_conf->power_down; + hwa742.power_up = ctrl_conf->power_up; + + spin_lock_init(&hwa742.req_lock); + + if ((r = hwa742.int_ctrl->init(fbdev, 1, req_vram)) < 0) + goto err1; + + if ((r = hwa742.extif->init(fbdev)) < 0) + goto err2; + + ext_clk = ctrl_conf->get_clock_rate(fbdev->dev); + if ((r = calc_extif_timings(ext_clk, &extif_mem_div)) < 0) + goto err3; + hwa742.extif->set_timings(&hwa742.reg_timings); + if (hwa742.power_up != NULL) + hwa742.power_up(fbdev->dev); + + calc_hwa742_clk_rates(ext_clk, &sys_clk, &pix_clk); + if ((r = calc_extif_timings(sys_clk, &extif_mem_div)) < 0) + goto err4; + hwa742.extif->set_timings(&hwa742.reg_timings); + + rev = hwa742_read_reg(HWA742_REV_CODE_REG); + if ((rev & 0xfc) != 0x80) { + dev_err(fbdev->dev, "HWA742: invalid revision %02x\n", rev); + r = -ENODEV; + goto err4; + } + + + if (!(hwa742_read_reg(HWA742_PLL_DIV_REG) & 0x80)) { + dev_err(fbdev->dev, + "HWA742: controller not initialized by the bootloader\n"); + r = -ENODEV; + goto err4; + } + + if (ctrl_conf->te_connected) { + if ((r = setup_tearsync(pix_clk, extif_mem_div)) < 0) { + dev_err(hwa742.fbdev->dev, + "HWA742: can't setup tearing synchronization\n"); + goto err4; + } + hwa742.te_connected = 1; + } + + hwa742.max_transmit_size = hwa742.extif->max_transmit_size; + + hwa742.update_mode = OMAPFB_UPDATE_DISABLED; + + hwa742.auto_update_window.x = 0; + hwa742.auto_update_window.y = 0; + hwa742.auto_update_window.width = fbdev->panel->x_res; + hwa742.auto_update_window.height = fbdev->panel->y_res; + hwa742.auto_update_window.format = 0; + + init_timer(&hwa742.auto_update_timer); + hwa742.auto_update_timer.function = hwa742_update_window_auto; + hwa742.auto_update_timer.data = 0; + + hwa742.prev_color_mode = -1; + hwa742.prev_flags = 0; + + hwa742.fbdev = fbdev; + + INIT_LIST_HEAD(&hwa742.free_req_list); + INIT_LIST_HEAD(&hwa742.pending_req_list); + for (i = 0; i < ARRAY_SIZE(hwa742.req_pool); i++) + list_add(&hwa742.req_pool[i].entry, &hwa742.free_req_list); + BUG_ON(i <= IRQ_REQ_POOL_SIZE); + sema_init(&hwa742.req_sema, i - IRQ_REQ_POOL_SIZE); + + conf = hwa742_read_reg(HWA742_CONFIG_REG); + dev_info(fbdev->dev, ": Epson HWA742 LCD controller rev %d " + "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07); + + return 0; +err4: + if (hwa742.power_down != NULL) + hwa742.power_down(fbdev->dev); +err3: + hwa742.extif->cleanup(); +err2: + hwa742.int_ctrl->cleanup(); +err1: + return r; +} + +static void hwa742_cleanup(void) +{ + hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED); + hwa742.extif->cleanup(); + hwa742.int_ctrl->cleanup(); + if (hwa742.power_down != NULL) + hwa742.power_down(hwa742.fbdev->dev); +} + +struct lcd_ctrl hwa742_ctrl = { + .name = "hwa742", + .init = hwa742_init, + .cleanup = hwa742_cleanup, + .bind_client = hwa742_bind_client, + .get_caps = hwa742_get_caps, + .set_update_mode = hwa742_set_update_mode, + .get_update_mode = hwa742_get_update_mode, + .setup_plane = hwa742_setup_plane, + .enable_plane = hwa742_enable_plane, + .update_window = hwa742_update_window_async, + .sync = hwa742_sync, + .suspend = hwa742_suspend, + .resume = hwa742_resume, +}; + diff --git a/drivers/video/omap/lcd_h3.c b/drivers/video/omap/lcd_h3.c new file mode 100644 index 000000000000..51807b4e26d1 --- /dev/null +++ b/drivers/video/omap/lcd_h3.c @@ -0,0 +1,141 @@ +/* + * LCD panel support for the TI OMAP H3 board + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/tps65010.h> +#include <asm/arch/omapfb.h> + +#define MODULE_NAME "omapfb-lcd_h3" + +#define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args) + +static int h3_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) +{ + return 0; +} + +static void h3_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int h3_panel_enable(struct lcd_panel *panel) +{ + int r = 0; + + /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */ + r = tps65010_set_gpio_out_value(GPIO1, HIGH); + if (!r) + r = tps65010_set_gpio_out_value(GPIO2, HIGH); + if (r) + pr_err("Unable to turn on LCD panel\n"); + + return r; +} + +static void h3_panel_disable(struct lcd_panel *panel) +{ + int r = 0; + + /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */ + r = tps65010_set_gpio_out_value(GPIO1, LOW); + if (!r) + tps65010_set_gpio_out_value(GPIO2, LOW); + if (r) + pr_err("Unable to turn off LCD panel\n"); +} + +static unsigned long h3_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel h3_panel = { + .name = "h3", + .config = OMAP_LCDC_PANEL_TFT, + + .data_lines = 16, + .bpp = 16, + .x_res = 240, + .y_res = 320, + .pixel_clock = 12000, + .hsw = 12, + .hfp = 14, + .hbp = 72 - 12, + .vsw = 1, + .vfp = 1, + .vbp = 0, + .pcd = 0, + + .init = h3_panel_init, + .cleanup = h3_panel_cleanup, + .enable = h3_panel_enable, + .disable = h3_panel_disable, + .get_caps = h3_panel_get_caps, +}; + +static int h3_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&h3_panel); + return 0; +} + +static int h3_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int h3_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int h3_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver h3_panel_driver = { + .probe = h3_panel_probe, + .remove = h3_panel_remove, + .suspend = h3_panel_suspend, + .resume = h3_panel_resume, + .driver = { + .name = "lcd_h3", + .owner = THIS_MODULE, + }, +}; + +static int h3_panel_drv_init(void) +{ + return platform_driver_register(&h3_panel_driver); +} + +static void h3_panel_drv_cleanup(void) +{ + platform_driver_unregister(&h3_panel_driver); +} + +module_init(h3_panel_drv_init); +module_exit(h3_panel_drv_cleanup); + diff --git a/drivers/video/omap/lcd_h4.c b/drivers/video/omap/lcd_h4.c new file mode 100644 index 000000000000..fd6f0eb16de1 --- /dev/null +++ b/drivers/video/omap/lcd_h4.c @@ -0,0 +1,117 @@ +/* + * LCD panel support for the TI OMAP H4 board + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <asm/arch/omapfb.h> + +static int h4_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) +{ + return 0; +} + +static void h4_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int h4_panel_enable(struct lcd_panel *panel) +{ + return 0; +} + +static void h4_panel_disable(struct lcd_panel *panel) +{ +} + +static unsigned long h4_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel h4_panel = { + .name = "h4", + .config = OMAP_LCDC_PANEL_TFT, + + .bpp = 16, + .data_lines = 16, + .x_res = 240, + .y_res = 320, + .pixel_clock = 6250, + .hsw = 15, + .hfp = 15, + .hbp = 60, + .vsw = 1, + .vfp = 1, + .vbp = 1, + + .init = h4_panel_init, + .cleanup = h4_panel_cleanup, + .enable = h4_panel_enable, + .disable = h4_panel_disable, + .get_caps = h4_panel_get_caps, +}; + +static int h4_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&h4_panel); + return 0; +} + +static int h4_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int h4_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int h4_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver h4_panel_driver = { + .probe = h4_panel_probe, + .remove = h4_panel_remove, + .suspend = h4_panel_suspend, + .resume = h4_panel_resume, + .driver = { + .name = "lcd_h4", + .owner = THIS_MODULE, + }, +}; + +static int h4_panel_drv_init(void) +{ + return platform_driver_register(&h4_panel_driver); +} + +static void h4_panel_drv_cleanup(void) +{ + platform_driver_unregister(&h4_panel_driver); +} + +module_init(h4_panel_drv_init); +module_exit(h4_panel_drv_cleanup); + diff --git a/drivers/video/omap/lcd_inn1510.c b/drivers/video/omap/lcd_inn1510.c new file mode 100644 index 000000000000..551f385861d1 --- /dev/null +++ b/drivers/video/omap/lcd_inn1510.c @@ -0,0 +1,124 @@ +/* + * LCD panel support for the TI OMAP1510 Innovator board + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <asm/arch/fpga.h> +#include <asm/arch/omapfb.h> + +static int innovator1510_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + return 0; +} + +static void innovator1510_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int innovator1510_panel_enable(struct lcd_panel *panel) +{ + fpga_write(0x7, OMAP1510_FPGA_LCD_PANEL_CONTROL); + return 0; +} + +static void innovator1510_panel_disable(struct lcd_panel *panel) +{ + fpga_write(0x0, OMAP1510_FPGA_LCD_PANEL_CONTROL); +} + +static unsigned long innovator1510_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel innovator1510_panel = { + .name = "inn1510", + .config = OMAP_LCDC_PANEL_TFT, + + .bpp = 16, + .data_lines = 16, + .x_res = 240, + .y_res = 320, + .pixel_clock = 12500, + .hsw = 40, + .hfp = 40, + .hbp = 72, + .vsw = 1, + .vfp = 1, + .vbp = 0, + .pcd = 12, + + .init = innovator1510_panel_init, + .cleanup = innovator1510_panel_cleanup, + .enable = innovator1510_panel_enable, + .disable = innovator1510_panel_disable, + .get_caps = innovator1510_panel_get_caps, +}; + +static int innovator1510_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&innovator1510_panel); + return 0; +} + +static int innovator1510_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int innovator1510_panel_suspend(struct platform_device *pdev, + pm_message_t mesg) +{ + return 0; +} + +static int innovator1510_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver innovator1510_panel_driver = { + .probe = innovator1510_panel_probe, + .remove = innovator1510_panel_remove, + .suspend = innovator1510_panel_suspend, + .resume = innovator1510_panel_resume, + .driver = { + .name = "lcd_inn1510", + .owner = THIS_MODULE, + }, +}; + +static int innovator1510_panel_drv_init(void) +{ + return platform_driver_register(&innovator1510_panel_driver); +} + +static void innovator1510_panel_drv_cleanup(void) +{ + platform_driver_unregister(&innovator1510_panel_driver); +} + +module_init(innovator1510_panel_drv_init); +module_exit(innovator1510_panel_drv_cleanup); + diff --git a/drivers/video/omap/lcd_inn1610.c b/drivers/video/omap/lcd_inn1610.c new file mode 100644 index 000000000000..95604ca43301 --- /dev/null +++ b/drivers/video/omap/lcd_inn1610.c @@ -0,0 +1,150 @@ +/* + * LCD panel support for the TI OMAP1610 Innovator board + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/omapfb.h> + +#define MODULE_NAME "omapfb-lcd_h3" + +#define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args) + +static int innovator1610_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + int r = 0; + + if (omap_request_gpio(14)) { + pr_err("can't request GPIO 14\n"); + r = -1; + goto exit; + } + if (omap_request_gpio(15)) { + pr_err("can't request GPIO 15\n"); + omap_free_gpio(14); + r = -1; + goto exit; + } + /* configure GPIO(14, 15) as outputs */ + omap_set_gpio_direction(14, 0); + omap_set_gpio_direction(15, 0); +exit: + return r; +} + +static void innovator1610_panel_cleanup(struct lcd_panel *panel) +{ + omap_free_gpio(15); + omap_free_gpio(14); +} + +static int innovator1610_panel_enable(struct lcd_panel *panel) +{ + /* set GPIO14 and GPIO15 high */ + omap_set_gpio_dataout(14, 1); + omap_set_gpio_dataout(15, 1); + return 0; +} + +static void innovator1610_panel_disable(struct lcd_panel *panel) +{ + /* set GPIO13, GPIO14 and GPIO15 low */ + omap_set_gpio_dataout(14, 0); + omap_set_gpio_dataout(15, 0); +} + +static unsigned long innovator1610_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel innovator1610_panel = { + .name = "inn1610", + .config = OMAP_LCDC_PANEL_TFT, + + .bpp = 16, + .data_lines = 16, + .x_res = 320, + .y_res = 240, + .pixel_clock = 12500, + .hsw = 40, + .hfp = 40, + .hbp = 72, + .vsw = 1, + .vfp = 1, + .vbp = 0, + .pcd = 12, + + .init = innovator1610_panel_init, + .cleanup = innovator1610_panel_cleanup, + .enable = innovator1610_panel_enable, + .disable = innovator1610_panel_disable, + .get_caps = innovator1610_panel_get_caps, +}; + +static int innovator1610_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&innovator1610_panel); + return 0; +} + +static int innovator1610_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int innovator1610_panel_suspend(struct platform_device *pdev, + pm_message_t mesg) +{ + return 0; +} + +static int innovator1610_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver innovator1610_panel_driver = { + .probe = innovator1610_panel_probe, + .remove = innovator1610_panel_remove, + .suspend = innovator1610_panel_suspend, + .resume = innovator1610_panel_resume, + .driver = { + .name = "lcd_inn1610", + .owner = THIS_MODULE, + }, +}; + +static int innovator1610_panel_drv_init(void) +{ + return platform_driver_register(&innovator1610_panel_driver); +} + +static void innovator1610_panel_drv_cleanup(void) +{ + platform_driver_unregister(&innovator1610_panel_driver); +} + +module_init(innovator1610_panel_drv_init); +module_exit(innovator1610_panel_drv_cleanup); + diff --git a/drivers/video/omap/lcd_osk.c b/drivers/video/omap/lcd_osk.c new file mode 100644 index 000000000000..a38038840fd6 --- /dev/null +++ b/drivers/video/omap/lcd_osk.c @@ -0,0 +1,144 @@ +/* + * LCD panel support for the TI OMAP OSK board + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * Adapted for OSK by <dirk.behme@de.bosch.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/mux.h> +#include <asm/arch/omapfb.h> + +static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) +{ + return 0; +} + +static void osk_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int osk_panel_enable(struct lcd_panel *panel) +{ + /* configure PWL pin */ + omap_cfg_reg(PWL); + + /* Enable PWL unit */ + omap_writeb(0x01, OMAP_PWL_CLK_ENABLE); + + /* Set PWL level */ + omap_writeb(0xFF, OMAP_PWL_ENABLE); + + /* configure GPIO2 as output */ + omap_set_gpio_direction(2, 0); + + /* set GPIO2 high */ + omap_set_gpio_dataout(2, 1); + + return 0; +} + +static void osk_panel_disable(struct lcd_panel *panel) +{ + /* Set PWL level to zero */ + omap_writeb(0x00, OMAP_PWL_ENABLE); + + /* Disable PWL unit */ + omap_writeb(0x00, OMAP_PWL_CLK_ENABLE); + + /* set GPIO2 low */ + omap_set_gpio_dataout(2, 0); +} + +static unsigned long osk_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel osk_panel = { + .name = "osk", + .config = OMAP_LCDC_PANEL_TFT, + + .bpp = 16, + .data_lines = 16, + .x_res = 240, + .y_res = 320, + .pixel_clock = 12500, + .hsw = 40, + .hfp = 40, + .hbp = 72, + .vsw = 1, + .vfp = 1, + .vbp = 0, + .pcd = 12, + + .init = osk_panel_init, + .cleanup = osk_panel_cleanup, + .enable = osk_panel_enable, + .disable = osk_panel_disable, + .get_caps = osk_panel_get_caps, +}; + +static int osk_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&osk_panel); + return 0; +} + +static int osk_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int osk_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver osk_panel_driver = { + .probe = osk_panel_probe, + .remove = osk_panel_remove, + .suspend = osk_panel_suspend, + .resume = osk_panel_resume, + .driver = { + .name = "lcd_osk", + .owner = THIS_MODULE, + }, +}; + +static int osk_panel_drv_init(void) +{ + return platform_driver_register(&osk_panel_driver); +} + +static void osk_panel_drv_cleanup(void) +{ + platform_driver_unregister(&osk_panel_driver); +} + +module_init(osk_panel_drv_init); +module_exit(osk_panel_drv_cleanup); + diff --git a/drivers/video/omap/lcd_palmte.c b/drivers/video/omap/lcd_palmte.c new file mode 100644 index 000000000000..52bdfdac42c9 --- /dev/null +++ b/drivers/video/omap/lcd_palmte.c @@ -0,0 +1,123 @@ +/* + * LCD panel support for the Palm Tungsten E + * + * Original version : Romain Goyet <r.goyet@gmail.com> + * Current version : Laurent Gonzalez <palmte.linux@free.fr> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <asm/arch/fpga.h> +#include <asm/arch/omapfb.h> + +static int palmte_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + return 0; +} + +static void palmte_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int palmte_panel_enable(struct lcd_panel *panel) +{ + return 0; +} + +static void palmte_panel_disable(struct lcd_panel *panel) +{ +} + +static unsigned long palmte_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel palmte_panel = { + .name = "palmte", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC | OMAP_LCDC_HSVS_RISING_EDGE | + OMAP_LCDC_HSVS_OPPOSITE, + + .data_lines = 16, + .bpp = 8, + .pixel_clock = 12000, + .x_res = 320, + .y_res = 320, + .hsw = 4, + .hfp = 8, + .hbp = 28, + .vsw = 1, + .vfp = 8, + .vbp = 7, + .pcd = 0, + + .init = palmte_panel_init, + .cleanup = palmte_panel_cleanup, + .enable = palmte_panel_enable, + .disable = palmte_panel_disable, + .get_caps = palmte_panel_get_caps, +}; + +static int palmte_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&palmte_panel); + return 0; +} + +static int palmte_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int palmte_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int palmte_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver palmte_panel_driver = { + .probe = palmte_panel_probe, + .remove = palmte_panel_remove, + .suspend = palmte_panel_suspend, + .resume = palmte_panel_resume, + .driver = { + .name = "lcd_palmte", + .owner = THIS_MODULE, + }, +}; + +static int palmte_panel_drv_init(void) +{ + return platform_driver_register(&palmte_panel_driver); +} + +static void palmte_panel_drv_cleanup(void) +{ + platform_driver_unregister(&palmte_panel_driver); +} + +module_init(palmte_panel_drv_init); +module_exit(palmte_panel_drv_cleanup); + diff --git a/drivers/video/omap/lcd_palmtt.c b/drivers/video/omap/lcd_palmtt.c new file mode 100644 index 000000000000..4bb349f54356 --- /dev/null +++ b/drivers/video/omap/lcd_palmtt.c @@ -0,0 +1,127 @@ +/* + * LCD panel support for Palm Tungsten|T + * Current version : Marek Vasut <marek.vasut@gmail.com> + * + * Modified from lcd_inn1510.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* +GPIO11 - backlight +GPIO12 - screen blanking +GPIO13 - screen blanking +*/ + +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/io.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/omapfb.h> + +static int palmtt_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + return 0; +} + +static void palmtt_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int palmtt_panel_enable(struct lcd_panel *panel) +{ + return 0; +} + +static void palmtt_panel_disable(struct lcd_panel *panel) +{ +} + +static unsigned long palmtt_panel_get_caps(struct lcd_panel *panel) +{ + return OMAPFB_CAPS_SET_BACKLIGHT; +} + +struct lcd_panel palmtt_panel = { + .name = "palmtt", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC | OMAP_LCDC_HSVS_RISING_EDGE | + OMAP_LCDC_HSVS_OPPOSITE, + .bpp = 16, + .data_lines = 16, + .x_res = 320, + .y_res = 320, + .pixel_clock = 10000, + .hsw = 4, + .hfp = 8, + .hbp = 28, + .vsw = 1, + .vfp = 8, + .vbp = 7, + .pcd = 0, + + .init = palmtt_panel_init, + .cleanup = palmtt_panel_cleanup, + .enable = palmtt_panel_enable, + .disable = palmtt_panel_disable, + .get_caps = palmtt_panel_get_caps, +}; + +static int palmtt_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&palmtt_panel); + return 0; +} + +static int palmtt_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int palmtt_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int palmtt_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver palmtt_panel_driver = { + .probe = palmtt_panel_probe, + .remove = palmtt_panel_remove, + .suspend = palmtt_panel_suspend, + .resume = palmtt_panel_resume, + .driver = { + .name = "lcd_palmtt", + .owner = THIS_MODULE, + }, +}; + +static int palmtt_panel_drv_init(void) +{ + return platform_driver_register(&palmtt_panel_driver); +} + +static void palmtt_panel_drv_cleanup(void) +{ + platform_driver_unregister(&palmtt_panel_driver); +} + +module_init(palmtt_panel_drv_init); +module_exit(palmtt_panel_drv_cleanup); diff --git a/drivers/video/omap/lcd_palmz71.c b/drivers/video/omap/lcd_palmz71.c new file mode 100644 index 000000000000..ea6170ddff35 --- /dev/null +++ b/drivers/video/omap/lcd_palmz71.c @@ -0,0 +1,123 @@ +/* + * LCD panel support for the Palm Zire71 + * + * Original version : Romain Goyet + * Current version : Laurent Gonzalez + * Modified for zire71 : Marek Vasut + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <asm/arch/omapfb.h> + +static int palmz71_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + return 0; +} + +static void palmz71_panel_cleanup(struct lcd_panel *panel) +{ + +} + +static int palmz71_panel_enable(struct lcd_panel *panel) +{ + return 0; +} + +static void palmz71_panel_disable(struct lcd_panel *panel) +{ +} + +static unsigned long palmz71_panel_get_caps(struct lcd_panel *panel) +{ + return OMAPFB_CAPS_SET_BACKLIGHT; +} + +struct lcd_panel palmz71_panel = { + .name = "palmz71", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC | OMAP_LCDC_HSVS_RISING_EDGE | + OMAP_LCDC_HSVS_OPPOSITE, + .data_lines = 16, + .bpp = 16, + .pixel_clock = 24000, + .x_res = 320, + .y_res = 320, + .hsw = 4, + .hfp = 8, + .hbp = 28, + .vsw = 1, + .vfp = 8, + .vbp = 7, + .pcd = 0, + + .init = palmz71_panel_init, + .cleanup = palmz71_panel_cleanup, + .enable = palmz71_panel_enable, + .disable = palmz71_panel_disable, + .get_caps = palmz71_panel_get_caps, +}; + +static int palmz71_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&palmz71_panel); + return 0; +} + +static int palmz71_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int palmz71_panel_suspend(struct platform_device *pdev, + pm_message_t mesg) +{ + return 0; +} + +static int palmz71_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver palmz71_panel_driver = { + .probe = palmz71_panel_probe, + .remove = palmz71_panel_remove, + .suspend = palmz71_panel_suspend, + .resume = palmz71_panel_resume, + .driver = { + .name = "lcd_palmz71", + .owner = THIS_MODULE, + }, +}; + +static int palmz71_panel_drv_init(void) +{ + return platform_driver_register(&palmz71_panel_driver); +} + +static void palmz71_panel_drv_cleanup(void) +{ + platform_driver_unregister(&palmz71_panel_driver); +} + +module_init(palmz71_panel_drv_init); +module_exit(palmz71_panel_drv_cleanup); diff --git a/drivers/video/omap/lcd_sx1.c b/drivers/video/omap/lcd_sx1.c new file mode 100644 index 000000000000..c4f306a4e5c9 --- /dev/null +++ b/drivers/video/omap/lcd_sx1.c @@ -0,0 +1,334 @@ +/* + * LCD panel support for the Siemens SX1 mobile phone + * + * Current version : Vovan888@gmail.com, great help from FCA00000 + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/io.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/omapfb.h> +#include <asm/arch/mcbsp.h> +#include <asm/arch/mux.h> + +/* + * OMAP310 GPIO registers + */ +#define GPIO_DATA_INPUT 0xfffce000 +#define GPIO_DATA_OUTPUT 0xfffce004 +#define GPIO_DIR_CONTROL 0xfffce008 +#define GPIO_INT_CONTROL 0xfffce00c +#define GPIO_INT_MASK 0xfffce010 +#define GPIO_INT_STATUS 0xfffce014 +#define GPIO_PIN_CONTROL 0xfffce018 + + +#define A_LCD_SSC_RD 3 +#define A_LCD_SSC_SD 7 +#define _A_LCD_RESET 9 +#define _A_LCD_SSC_CS 12 +#define _A_LCD_SSC_A0 13 + +#define DSP_REG 0xE1017024 + +const unsigned char INIT_1[12] = { + 0x1C, 0x02, 0x88, 0x00, 0x1E, 0xE0, 0x00, 0xDC, 0x00, 0x02, 0x00 +}; + +const unsigned char INIT_2[127] = { + 0x15, 0x00, 0x29, 0x00, 0x3E, 0x00, 0x51, 0x00, + 0x65, 0x00, 0x7A, 0x00, 0x8D, 0x00, 0xA1, 0x00, + 0xB6, 0x00, 0xC7, 0x00, 0xD8, 0x00, 0xEB, 0x00, + 0xFB, 0x00, 0x0B, 0x01, 0x1B, 0x01, 0x27, 0x01, + 0x34, 0x01, 0x41, 0x01, 0x4C, 0x01, 0x55, 0x01, + 0x5F, 0x01, 0x68, 0x01, 0x70, 0x01, 0x78, 0x01, + 0x7E, 0x01, 0x86, 0x01, 0x8C, 0x01, 0x94, 0x01, + 0x9B, 0x01, 0xA1, 0x01, 0xA4, 0x01, 0xA9, 0x01, + 0xAD, 0x01, 0xB2, 0x01, 0xB7, 0x01, 0xBC, 0x01, + 0xC0, 0x01, 0xC4, 0x01, 0xC8, 0x01, 0xCB, 0x01, + 0xCF, 0x01, 0xD2, 0x01, 0xD5, 0x01, 0xD8, 0x01, + 0xDB, 0x01, 0xE0, 0x01, 0xE3, 0x01, 0xE6, 0x01, + 0xE8, 0x01, 0xEB, 0x01, 0xEE, 0x01, 0xF1, 0x01, + 0xF3, 0x01, 0xF8, 0x01, 0xF9, 0x01, 0xFC, 0x01, + 0x00, 0x02, 0x03, 0x02, 0x07, 0x02, 0x09, 0x02, + 0x0E, 0x02, 0x13, 0x02, 0x1C, 0x02, 0x00 +}; + +const unsigned char INIT_3[15] = { + 0x14, 0x26, 0x33, 0x3D, 0x45, 0x4D, 0x53, 0x59, + 0x5E, 0x63, 0x67, 0x6D, 0x71, 0x78, 0xFF +}; + +static void epson_sendbyte(int flag, unsigned char byte) +{ + int i, shifter = 0x80; + + if (!flag) + omap_set_gpio_dataout(_A_LCD_SSC_A0, 0); + mdelay(2); + omap_set_gpio_dataout(A_LCD_SSC_RD, 1); + + omap_set_gpio_dataout(A_LCD_SSC_SD, flag); + + OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200); + OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202); + for (i = 0; i < 8; i++) { + OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200); + omap_set_gpio_dataout(A_LCD_SSC_SD, shifter & byte); + OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202); + shifter >>= 1; + } + omap_set_gpio_dataout(_A_LCD_SSC_A0, 1); +} + +static void init_system(void) +{ + omap_mcbsp_request(OMAP_MCBSP3); + omap_mcbsp_stop(OMAP_MCBSP3); +} + +static void setup_GPIO(void) +{ + /* new wave */ + omap_request_gpio(A_LCD_SSC_RD); + omap_request_gpio(A_LCD_SSC_SD); + omap_request_gpio(_A_LCD_RESET); + omap_request_gpio(_A_LCD_SSC_CS); + omap_request_gpio(_A_LCD_SSC_A0); + + /* set all GPIOs to output */ + omap_set_gpio_direction(A_LCD_SSC_RD, 0); + omap_set_gpio_direction(A_LCD_SSC_SD, 0); + omap_set_gpio_direction(_A_LCD_RESET, 0); + omap_set_gpio_direction(_A_LCD_SSC_CS, 0); + omap_set_gpio_direction(_A_LCD_SSC_A0, 0); + + /* set GPIO data */ + omap_set_gpio_dataout(A_LCD_SSC_RD, 1); + omap_set_gpio_dataout(A_LCD_SSC_SD, 0); + omap_set_gpio_dataout(_A_LCD_RESET, 0); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_A0, 1); +} + +static void display_init(void) +{ + int i; + + omap_cfg_reg(MCBSP3_CLKX); + + mdelay(2); + setup_GPIO(); + mdelay(2); + + /* reset LCD */ + omap_set_gpio_dataout(A_LCD_SSC_SD, 1); + epson_sendbyte(0, 0x25); + + omap_set_gpio_dataout(_A_LCD_RESET, 0); + mdelay(10); + omap_set_gpio_dataout(_A_LCD_RESET, 1); + + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + mdelay(2); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD, phase 1 */ + epson_sendbyte(0, 0xCA); + for (i = 0; i < 10; i++) + epson_sendbyte(1, INIT_1[i]); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 2 */ + epson_sendbyte(0, 0xCB); + for (i = 0; i < 125; i++) + epson_sendbyte(1, INIT_2[i]); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 2a */ + epson_sendbyte(0, 0xCC); + for (i = 0; i < 14; i++) + epson_sendbyte(1, INIT_3[i]); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 3 */ + epson_sendbyte(0, 0xBC); + epson_sendbyte(1, 0x08); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 4 */ + epson_sendbyte(0, 0x07); + epson_sendbyte(1, 0x05); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 5 */ + epson_sendbyte(0, 0x94); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 6 */ + epson_sendbyte(0, 0xC6); + epson_sendbyte(1, 0x80); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + mdelay(100); /* used to be 1000 */ + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 7 */ + epson_sendbyte(0, 0x16); + epson_sendbyte(1, 0x02); + epson_sendbyte(1, 0x00); + epson_sendbyte(1, 0xB1); + epson_sendbyte(1, 0x00); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 8 */ + epson_sendbyte(0, 0x76); + epson_sendbyte(1, 0x00); + epson_sendbyte(1, 0x00); + epson_sendbyte(1, 0xDB); + epson_sendbyte(1, 0x00); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + /* init LCD phase 9 */ + epson_sendbyte(0, 0xAF); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); +} + +static int sx1_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) +{ + return 0; +} + +static void sx1_panel_cleanup(struct lcd_panel *panel) +{ +} + +static void sx1_panel_disable(struct lcd_panel *panel) +{ + printk(KERN_INFO "SX1: LCD panel disable\n"); + sx1_setmmipower(0); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + + epson_sendbyte(0, 0x25); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + epson_sendbyte(0, 0xAE); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); + mdelay(100); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 0); + + epson_sendbyte(0, 0x95); + omap_set_gpio_dataout(_A_LCD_SSC_CS, 1); +} + +static int sx1_panel_enable(struct lcd_panel *panel) +{ + printk(KERN_INFO "lcd_sx1: LCD panel enable\n"); + init_system(); + display_init(); + + sx1_setmmipower(1); + sx1_setbacklight(0x18); + sx1_setkeylight (0x06); + return 0; +} + + +static unsigned long sx1_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel sx1_panel = { + .name = "sx1", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC | OMAP_LCDC_INV_PIX_CLOCK | + OMAP_LCDC_INV_OUTPUT_EN, + + .x_res = 176, + .y_res = 220, + .data_lines = 16, + .bpp = 16, + .hsw = 5, + .hfp = 5, + .hbp = 5, + .vsw = 2, + .vfp = 1, + .vbp = 1, + .pixel_clock = 1500, + + .init = sx1_panel_init, + .cleanup = sx1_panel_cleanup, + .enable = sx1_panel_enable, + .disable = sx1_panel_disable, + .get_caps = sx1_panel_get_caps, +}; + +static int sx1_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&sx1_panel); + return 0; +} + +static int sx1_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int sx1_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int sx1_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver sx1_panel_driver = { + .probe = sx1_panel_probe, + .remove = sx1_panel_remove, + .suspend = sx1_panel_suspend, + .resume = sx1_panel_resume, + .driver = { + .name = "lcd_sx1", + .owner = THIS_MODULE, + }, +}; + +static int sx1_panel_drv_init(void) +{ + return platform_driver_register(&sx1_panel_driver); +} + +static void sx1_panel_drv_cleanup(void) +{ + platform_driver_unregister(&sx1_panel_driver); +} + +module_init(sx1_panel_drv_init); +module_exit(sx1_panel_drv_cleanup); diff --git a/drivers/video/omap/lcdc.c b/drivers/video/omap/lcdc.c new file mode 100644 index 000000000000..9085188d815e --- /dev/null +++ b/drivers/video/omap/lcdc.c @@ -0,0 +1,893 @@ +/* + * OMAP1 internal LCD controller + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/module.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/spinlock.h> +#include <linux/err.h> +#include <linux/mm.h> +#include <linux/fb.h> +#include <linux/dma-mapping.h> +#include <linux/vmalloc.h> +#include <linux/clk.h> + +#include <asm/arch/dma.h> +#include <asm/arch/omapfb.h> + +#include <asm/mach-types.h> + +#define MODULE_NAME "lcdc" + +#define OMAP_LCDC_BASE 0xfffec000 +#define OMAP_LCDC_SIZE 256 +#define OMAP_LCDC_IRQ INT_LCD_CTRL + +#define OMAP_LCDC_CONTROL (OMAP_LCDC_BASE + 0x00) +#define OMAP_LCDC_TIMING0 (OMAP_LCDC_BASE + 0x04) +#define OMAP_LCDC_TIMING1 (OMAP_LCDC_BASE + 0x08) +#define OMAP_LCDC_TIMING2 (OMAP_LCDC_BASE + 0x0c) +#define OMAP_LCDC_STATUS (OMAP_LCDC_BASE + 0x10) +#define OMAP_LCDC_SUBPANEL (OMAP_LCDC_BASE + 0x14) +#define OMAP_LCDC_LINE_INT (OMAP_LCDC_BASE + 0x18) +#define OMAP_LCDC_DISPLAY_STATUS (OMAP_LCDC_BASE + 0x1c) + +#define OMAP_LCDC_STAT_DONE (1 << 0) +#define OMAP_LCDC_STAT_VSYNC (1 << 1) +#define OMAP_LCDC_STAT_SYNC_LOST (1 << 2) +#define OMAP_LCDC_STAT_ABC (1 << 3) +#define OMAP_LCDC_STAT_LINE_INT (1 << 4) +#define OMAP_LCDC_STAT_FUF (1 << 5) +#define OMAP_LCDC_STAT_LOADED_PALETTE (1 << 6) + +#define OMAP_LCDC_CTRL_LCD_EN (1 << 0) +#define OMAP_LCDC_CTRL_LCD_TFT (1 << 7) +#define OMAP_LCDC_CTRL_LINE_IRQ_CLR_SEL (1 << 10) + +#define OMAP_LCDC_IRQ_VSYNC (1 << 2) +#define OMAP_LCDC_IRQ_DONE (1 << 3) +#define OMAP_LCDC_IRQ_LOADED_PALETTE (1 << 4) +#define OMAP_LCDC_IRQ_LINE_NIRQ (1 << 5) +#define OMAP_LCDC_IRQ_LINE (1 << 6) +#define OMAP_LCDC_IRQ_MASK (((1 << 5) - 1) << 2) + +#define MAX_PALETTE_SIZE PAGE_SIZE + +enum lcdc_load_mode { + OMAP_LCDC_LOAD_PALETTE, + OMAP_LCDC_LOAD_FRAME, + OMAP_LCDC_LOAD_PALETTE_AND_FRAME +}; + +static struct omap_lcd_controller { + enum omapfb_update_mode update_mode; + int ext_mode; + + unsigned long frame_offset; + int screen_width; + int xres; + int yres; + + enum omapfb_color_format color_mode; + int bpp; + void *palette_virt; + dma_addr_t palette_phys; + int palette_code; + int palette_size; + + unsigned int irq_mask; + struct completion last_frame_complete; + struct completion palette_load_complete; + struct clk *lcd_ck; + struct omapfb_device *fbdev; + + void (*dma_callback)(void *data); + void *dma_callback_data; + + int fbmem_allocated; + dma_addr_t vram_phys; + void *vram_virt; + unsigned long vram_size; +} lcdc; + +static void inline enable_irqs(int mask) +{ + lcdc.irq_mask |= mask; +} + +static void inline disable_irqs(int mask) +{ + lcdc.irq_mask &= ~mask; +} + +static void set_load_mode(enum lcdc_load_mode mode) +{ + u32 l; + + l = omap_readl(OMAP_LCDC_CONTROL); + l &= ~(3 << 20); + switch (mode) { + case OMAP_LCDC_LOAD_PALETTE: + l |= 1 << 20; + break; + case OMAP_LCDC_LOAD_FRAME: + l |= 2 << 20; + break; + case OMAP_LCDC_LOAD_PALETTE_AND_FRAME: + break; + default: + BUG(); + } + omap_writel(l, OMAP_LCDC_CONTROL); +} + +static void enable_controller(void) +{ + u32 l; + + l = omap_readl(OMAP_LCDC_CONTROL); + l |= OMAP_LCDC_CTRL_LCD_EN; + l &= ~OMAP_LCDC_IRQ_MASK; + l |= lcdc.irq_mask | OMAP_LCDC_IRQ_DONE; /* enabled IRQs */ + omap_writel(l, OMAP_LCDC_CONTROL); +} + +static void disable_controller_async(void) +{ + u32 l; + u32 mask; + + l = omap_readl(OMAP_LCDC_CONTROL); + mask = OMAP_LCDC_CTRL_LCD_EN | OMAP_LCDC_IRQ_MASK; + /* + * Preserve the DONE mask, since we still want to get the + * final DONE irq. It will be disabled in the IRQ handler. + */ + mask &= ~OMAP_LCDC_IRQ_DONE; + l &= ~mask; + omap_writel(l, OMAP_LCDC_CONTROL); +} + +static void disable_controller(void) +{ + init_completion(&lcdc.last_frame_complete); + disable_controller_async(); + if (!wait_for_completion_timeout(&lcdc.last_frame_complete, + msecs_to_jiffies(500))) + dev_err(lcdc.fbdev->dev, "timeout waiting for FRAME DONE\n"); +} + +static void reset_controller(u32 status) +{ + static unsigned long reset_count; + static unsigned long last_jiffies; + + disable_controller_async(); + reset_count++; + if (reset_count == 1 || time_after(jiffies, last_jiffies + HZ)) { + dev_err(lcdc.fbdev->dev, + "resetting (status %#010x,reset count %lu)\n", + status, reset_count); + last_jiffies = jiffies; + } + if (reset_count < 100) { + enable_controller(); + } else { + reset_count = 0; + dev_err(lcdc.fbdev->dev, + "too many reset attempts, giving up.\n"); + } +} + +/* + * Configure the LCD DMA according to the current mode specified by parameters + * in lcdc.fbdev and fbdev->var. + */ +static void setup_lcd_dma(void) +{ + static const int dma_elem_type[] = { + 0, + OMAP_DMA_DATA_TYPE_S8, + OMAP_DMA_DATA_TYPE_S16, + 0, + OMAP_DMA_DATA_TYPE_S32, + }; + struct omapfb_plane_struct *plane = lcdc.fbdev->fb_info[0]->par; + struct fb_var_screeninfo *var = &lcdc.fbdev->fb_info[0]->var; + unsigned long src; + int esize, xelem, yelem; + + src = lcdc.vram_phys + lcdc.frame_offset; + + switch (var->rotate) { + case 0: + if (plane->info.mirror || (src & 3) || + lcdc.color_mode == OMAPFB_COLOR_YUV420 || + (lcdc.xres & 1)) + esize = 2; + else + esize = 4; + xelem = lcdc.xres * lcdc.bpp / 8 / esize; + yelem = lcdc.yres; + break; + case 90: + case 180: + case 270: + if (cpu_is_omap15xx()) { + BUG(); + } + esize = 2; + xelem = lcdc.yres * lcdc.bpp / 16; + yelem = lcdc.xres; + break; + default: + BUG(); + return; + } +#ifdef VERBOSE + dev_dbg(lcdc.fbdev->dev, + "setup_dma: src %#010lx esize %d xelem %d yelem %d\n", + src, esize, xelem, yelem); +#endif + omap_set_lcd_dma_b1(src, xelem, yelem, dma_elem_type[esize]); + if (!cpu_is_omap15xx()) { + int bpp = lcdc.bpp; + + /* + * YUV support is only for external mode when we have the + * YUV window embedded in a 16bpp frame buffer. + */ + if (lcdc.color_mode == OMAPFB_COLOR_YUV420) + bpp = 16; + /* Set virtual xres elem size */ + omap_set_lcd_dma_b1_vxres( + lcdc.screen_width * bpp / 8 / esize); + /* Setup transformations */ + omap_set_lcd_dma_b1_rotation(var->rotate); + omap_set_lcd_dma_b1_mirror(plane->info.mirror); + } + omap_setup_lcd_dma(); +} + +static irqreturn_t lcdc_irq_handler(int irq, void *dev_id) +{ + u32 status; + + status = omap_readl(OMAP_LCDC_STATUS); + + if (status & (OMAP_LCDC_STAT_FUF | OMAP_LCDC_STAT_SYNC_LOST)) + reset_controller(status); + else { + if (status & OMAP_LCDC_STAT_DONE) { + u32 l; + + /* + * Disable IRQ_DONE. The status bit will be cleared + * only when the controller is reenabled and we don't + * want to get more interrupts. + */ + l = omap_readl(OMAP_LCDC_CONTROL); + l &= ~OMAP_LCDC_IRQ_DONE; + omap_writel(l, OMAP_LCDC_CONTROL); + complete(&lcdc.last_frame_complete); + } + if (status & OMAP_LCDC_STAT_LOADED_PALETTE) { + disable_controller_async(); + complete(&lcdc.palette_load_complete); + } + } + + /* + * Clear these interrupt status bits. + * Sync_lost, FUF bits were cleared by disabling the LCD controller + * LOADED_PALETTE can be cleared this way only in palette only + * load mode. In other load modes it's cleared by disabling the + * controller. + */ + status &= ~(OMAP_LCDC_STAT_VSYNC | + OMAP_LCDC_STAT_LOADED_PALETTE | + OMAP_LCDC_STAT_ABC | + OMAP_LCDC_STAT_LINE_INT); + omap_writel(status, OMAP_LCDC_STATUS); + return IRQ_HANDLED; +} + +/* + * Change to a new video mode. We defer this to a later time to avoid any + * flicker and not to mess up the current LCD DMA context. For this we disable + * the LCD controler, which will generate a DONE irq after the last frame has + * been transferred. Then it'll be safe to reconfigure both the LCD controller + * as well as the LCD DMA. + */ +static int omap_lcdc_setup_plane(int plane, int channel_out, + unsigned long offset, int screen_width, + int pos_x, int pos_y, int width, int height, + int color_mode) +{ + struct fb_var_screeninfo *var = &lcdc.fbdev->fb_info[0]->var; + struct lcd_panel *panel = lcdc.fbdev->panel; + int rot_x, rot_y; + + if (var->rotate == 0) { + rot_x = panel->x_res; + rot_y = panel->y_res; + } else { + rot_x = panel->y_res; + rot_y = panel->x_res; + } + if (plane != 0 || channel_out != 0 || pos_x != 0 || pos_y != 0 || + width > rot_x || height > rot_y) { +#ifdef VERBOSE + dev_dbg(lcdc.fbdev->dev, + "invalid plane params plane %d pos_x %d pos_y %d " + "w %d h %d\n", plane, pos_x, pos_y, width, height); +#endif + return -EINVAL; + } + + lcdc.frame_offset = offset; + lcdc.xres = width; + lcdc.yres = height; + lcdc.screen_width = screen_width; + lcdc.color_mode = color_mode; + + switch (color_mode) { + case OMAPFB_COLOR_CLUT_8BPP: + lcdc.bpp = 8; + lcdc.palette_code = 0x3000; + lcdc.palette_size = 512; + break; + case OMAPFB_COLOR_RGB565: + lcdc.bpp = 16; + lcdc.palette_code = 0x4000; + lcdc.palette_size = 32; + break; + case OMAPFB_COLOR_RGB444: + lcdc.bpp = 16; + lcdc.palette_code = 0x4000; + lcdc.palette_size = 32; + break; + case OMAPFB_COLOR_YUV420: + if (lcdc.ext_mode) { + lcdc.bpp = 12; + break; + } + /* fallthrough */ + case OMAPFB_COLOR_YUV422: + if (lcdc.ext_mode) { + lcdc.bpp = 16; + break; + } + /* fallthrough */ + default: + /* FIXME: other BPPs. + * bpp1: code 0, size 256 + * bpp2: code 0x1000 size 256 + * bpp4: code 0x2000 size 256 + * bpp12: code 0x4000 size 32 + */ + dev_dbg(lcdc.fbdev->dev, "invalid color mode %d\n", color_mode); + BUG(); + return -1; + } + + if (lcdc.ext_mode) { + setup_lcd_dma(); + return 0; + } + + if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) { + disable_controller(); + omap_stop_lcd_dma(); + setup_lcd_dma(); + enable_controller(); + } + + return 0; +} + +static int omap_lcdc_enable_plane(int plane, int enable) +{ + dev_dbg(lcdc.fbdev->dev, + "plane %d enable %d update_mode %d ext_mode %d\n", + plane, enable, lcdc.update_mode, lcdc.ext_mode); + if (plane != OMAPFB_PLANE_GFX) + return -EINVAL; + + return 0; +} + +/* + * Configure the LCD DMA for a palette load operation and do the palette + * downloading synchronously. We don't use the frame+palette load mode of + * the controller, since the palette can always be downloaded seperately. + */ +static void load_palette(void) +{ + u16 *palette; + + palette = (u16 *)lcdc.palette_virt; + + *(u16 *)palette &= 0x0fff; + *(u16 *)palette |= lcdc.palette_code; + + omap_set_lcd_dma_b1(lcdc.palette_phys, + lcdc.palette_size / 4 + 1, 1, OMAP_DMA_DATA_TYPE_S32); + + omap_set_lcd_dma_single_transfer(1); + omap_setup_lcd_dma(); + + init_completion(&lcdc.palette_load_complete); + enable_irqs(OMAP_LCDC_IRQ_LOADED_PALETTE); + set_load_mode(OMAP_LCDC_LOAD_PALETTE); + enable_controller(); + if (!wait_for_completion_timeout(&lcdc.palette_load_complete, + msecs_to_jiffies(500))) + dev_err(lcdc.fbdev->dev, "timeout waiting for FRAME DONE\n"); + /* The controller gets disabled in the irq handler */ + disable_irqs(OMAP_LCDC_IRQ_LOADED_PALETTE); + omap_stop_lcd_dma(); + + omap_set_lcd_dma_single_transfer(lcdc.ext_mode); +} + +/* Used only in internal controller mode */ +static int omap_lcdc_setcolreg(u_int regno, u16 red, u16 green, u16 blue, + u16 transp, int update_hw_pal) +{ + u16 *palette; + + if (lcdc.color_mode != OMAPFB_COLOR_CLUT_8BPP || regno > 255) + return -EINVAL; + + palette = (u16 *)lcdc.palette_virt; + + palette[regno] &= ~0x0fff; + palette[regno] |= ((red >> 12) << 8) | ((green >> 12) << 4 ) | + (blue >> 12); + + if (update_hw_pal) { + disable_controller(); + omap_stop_lcd_dma(); + load_palette(); + setup_lcd_dma(); + set_load_mode(OMAP_LCDC_LOAD_FRAME); + enable_controller(); + } + + return 0; +} + +static void calc_ck_div(int is_tft, int pck, int *pck_div) +{ + unsigned long lck; + + pck = max(1, pck); + lck = clk_get_rate(lcdc.lcd_ck); + *pck_div = (lck + pck - 1) / pck; + if (is_tft) + *pck_div = max(2, *pck_div); + else + *pck_div = max(3, *pck_div); + if (*pck_div > 255) { + /* FIXME: try to adjust logic clock divider as well */ + *pck_div = 255; + dev_warn(lcdc.fbdev->dev, "pixclock %d kHz too low.\n", + pck / 1000); + } +} + +static void inline setup_regs(void) +{ + u32 l; + struct lcd_panel *panel = lcdc.fbdev->panel; + int is_tft = panel->config & OMAP_LCDC_PANEL_TFT; + unsigned long lck; + int pcd; + + l = omap_readl(OMAP_LCDC_CONTROL); + l &= ~OMAP_LCDC_CTRL_LCD_TFT; + l |= is_tft ? OMAP_LCDC_CTRL_LCD_TFT : 0; +#ifdef CONFIG_MACH_OMAP_PALMTE +/* FIXME:if (machine_is_omap_palmte()) { */ + /* PalmTE uses alternate TFT setting in 8BPP mode */ + l |= (is_tft && panel->bpp == 8) ? 0x810000 : 0; +/* } */ +#endif + omap_writel(l, OMAP_LCDC_CONTROL); + + l = omap_readl(OMAP_LCDC_TIMING2); + l &= ~(((1 << 6) - 1) << 20); + l |= (panel->config & OMAP_LCDC_SIGNAL_MASK) << 20; + omap_writel(l, OMAP_LCDC_TIMING2); + + l = panel->x_res - 1; + l |= (panel->hsw - 1) << 10; + l |= (panel->hfp - 1) << 16; + l |= (panel->hbp - 1) << 24; + omap_writel(l, OMAP_LCDC_TIMING0); + + l = panel->y_res - 1; + l |= (panel->vsw - 1) << 10; + l |= panel->vfp << 16; + l |= panel->vbp << 24; + omap_writel(l, OMAP_LCDC_TIMING1); + + l = omap_readl(OMAP_LCDC_TIMING2); + l &= ~0xff; + + lck = clk_get_rate(lcdc.lcd_ck); + + if (!panel->pcd) + calc_ck_div(is_tft, panel->pixel_clock * 1000, &pcd); + else { + dev_warn(lcdc.fbdev->dev, + "Pixel clock divider value is obsolete.\n" + "Try to set pixel_clock to %lu and pcd to 0 " + "in drivers/video/omap/lcd_%s.c and submit a patch.\n", + lck / panel->pcd / 1000, panel->name); + + pcd = panel->pcd; + } + l |= pcd & 0xff; + l |= panel->acb << 8; + omap_writel(l, OMAP_LCDC_TIMING2); + + /* update panel info with the exact clock */ + panel->pixel_clock = lck / pcd / 1000; +} + +/* + * Configure the LCD controller, download the color palette and start a looped + * DMA transfer of the frame image data. Called only in internal + * controller mode. + */ +static int omap_lcdc_set_update_mode(enum omapfb_update_mode mode) +{ + int r = 0; + + if (mode != lcdc.update_mode) { + switch (mode) { + case OMAPFB_AUTO_UPDATE: + setup_regs(); + load_palette(); + + /* Setup and start LCD DMA */ + setup_lcd_dma(); + + set_load_mode(OMAP_LCDC_LOAD_FRAME); + enable_irqs(OMAP_LCDC_IRQ_DONE); + /* This will start the actual DMA transfer */ + enable_controller(); + lcdc.update_mode = mode; + break; + case OMAPFB_UPDATE_DISABLED: + disable_controller(); + omap_stop_lcd_dma(); + lcdc.update_mode = mode; + break; + default: + r = -EINVAL; + } + } + + return r; +} + +static enum omapfb_update_mode omap_lcdc_get_update_mode(void) +{ + return lcdc.update_mode; +} + +/* PM code called only in internal controller mode */ +static void omap_lcdc_suspend(void) +{ + if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) { + disable_controller(); + omap_stop_lcd_dma(); + } +} + +static void omap_lcdc_resume(void) +{ + if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) { + setup_regs(); + load_palette(); + setup_lcd_dma(); + set_load_mode(OMAP_LCDC_LOAD_FRAME); + enable_irqs(OMAP_LCDC_IRQ_DONE); + enable_controller(); + } +} + +static void omap_lcdc_get_caps(int plane, struct omapfb_caps *caps) +{ + return; +} + +int omap_lcdc_set_dma_callback(void (*callback)(void *data), void *data) +{ + BUG_ON(callback == NULL); + + if (lcdc.dma_callback) + return -EBUSY; + else { + lcdc.dma_callback = callback; + lcdc.dma_callback_data = data; + } + return 0; +} +EXPORT_SYMBOL(omap_lcdc_set_dma_callback); + +void omap_lcdc_free_dma_callback(void) +{ + lcdc.dma_callback = NULL; +} +EXPORT_SYMBOL(omap_lcdc_free_dma_callback); + +static void lcdc_dma_handler(u16 status, void *data) +{ + if (lcdc.dma_callback) + lcdc.dma_callback(lcdc.dma_callback_data); +} + +static int mmap_kern(void) +{ + struct vm_struct *kvma; + struct vm_area_struct vma; + pgprot_t pgprot; + unsigned long vaddr; + + kvma = get_vm_area(lcdc.vram_size, VM_IOREMAP); + if (kvma == NULL) { + dev_err(lcdc.fbdev->dev, "can't get kernel vm area\n"); + return -ENOMEM; + } + vma.vm_mm = &init_mm; + + vaddr = (unsigned long)kvma->addr; + vma.vm_start = vaddr; + vma.vm_end = vaddr + lcdc.vram_size; + + pgprot = pgprot_writecombine(pgprot_kernel); + if (io_remap_pfn_range(&vma, vaddr, + lcdc.vram_phys >> PAGE_SHIFT, + lcdc.vram_size, pgprot) < 0) { + dev_err(lcdc.fbdev->dev, "kernel mmap for FB memory failed\n"); + return -EAGAIN; + } + + lcdc.vram_virt = (void *)vaddr; + + return 0; +} + +static void unmap_kern(void) +{ + vunmap(lcdc.vram_virt); +} + +static int alloc_palette_ram(void) +{ + lcdc.palette_virt = dma_alloc_writecombine(lcdc.fbdev->dev, + MAX_PALETTE_SIZE, &lcdc.palette_phys, GFP_KERNEL); + if (lcdc.palette_virt == NULL) { + dev_err(lcdc.fbdev->dev, "failed to alloc palette memory\n"); + return -ENOMEM; + } + memset(lcdc.palette_virt, 0, MAX_PALETTE_SIZE); + + return 0; +} + +static void free_palette_ram(void) +{ + dma_free_writecombine(lcdc.fbdev->dev, MAX_PALETTE_SIZE, + lcdc.palette_virt, lcdc.palette_phys); +} + +static int alloc_fbmem(struct omapfb_mem_region *region) +{ + int bpp; + int frame_size; + struct lcd_panel *panel = lcdc.fbdev->panel; + + bpp = panel->bpp; + if (bpp == 12) + bpp = 16; + frame_size = PAGE_ALIGN(panel->x_res * bpp / 8 * panel->y_res); + if (region->size > frame_size) + frame_size = region->size; + lcdc.vram_size = frame_size; + lcdc.vram_virt = dma_alloc_writecombine(lcdc.fbdev->dev, + lcdc.vram_size, &lcdc.vram_phys, GFP_KERNEL); + if (lcdc.vram_virt == NULL) { + dev_err(lcdc.fbdev->dev, "unable to allocate FB DMA memory\n"); + return -ENOMEM; + } + region->size = frame_size; + region->paddr = lcdc.vram_phys; + region->vaddr = lcdc.vram_virt; + region->alloc = 1; + + memset(lcdc.vram_virt, 0, lcdc.vram_size); + + return 0; +} + +static void free_fbmem(void) +{ + dma_free_writecombine(lcdc.fbdev->dev, lcdc.vram_size, + lcdc.vram_virt, lcdc.vram_phys); +} + +static int setup_fbmem(struct omapfb_mem_desc *req_md) +{ + int r; + + if (!req_md->region_cnt) { + dev_err(lcdc.fbdev->dev, "no memory regions defined\n"); + return -EINVAL; + } + + if (req_md->region_cnt > 1) { + dev_err(lcdc.fbdev->dev, "only one plane is supported\n"); + req_md->region_cnt = 1; + } + + if (req_md->region[0].paddr == 0) { + lcdc.fbmem_allocated = 1; + if ((r = alloc_fbmem(&req_md->region[0])) < 0) + return r; + return 0; + } + + lcdc.vram_phys = req_md->region[0].paddr; + lcdc.vram_size = req_md->region[0].size; + + if ((r = mmap_kern()) < 0) + return r; + + dev_dbg(lcdc.fbdev->dev, "vram at %08x size %08lx mapped to 0x%p\n", + lcdc.vram_phys, lcdc.vram_size, lcdc.vram_virt); + + return 0; +} + +static void cleanup_fbmem(void) +{ + if (lcdc.fbmem_allocated) + free_fbmem(); + else + unmap_kern(); +} + +static int omap_lcdc_init(struct omapfb_device *fbdev, int ext_mode, + struct omapfb_mem_desc *req_vram) +{ + int r; + u32 l; + int rate; + struct clk *tc_ck; + + lcdc.irq_mask = 0; + + lcdc.fbdev = fbdev; + lcdc.ext_mode = ext_mode; + + l = 0; + omap_writel(l, OMAP_LCDC_CONTROL); + + /* FIXME: + * According to errata some platforms have a clock rate limitiation + */ + lcdc.lcd_ck = clk_get(NULL, "lcd_ck"); + if (IS_ERR(lcdc.lcd_ck)) { + dev_err(fbdev->dev, "unable to access LCD clock\n"); + r = PTR_ERR(lcdc.lcd_ck); + goto fail0; + } + + tc_ck = clk_get(NULL, "tc_ck"); + if (IS_ERR(tc_ck)) { + dev_err(fbdev->dev, "unable to access TC clock\n"); + r = PTR_ERR(tc_ck); + goto fail1; + } + + rate = clk_get_rate(tc_ck); + clk_put(tc_ck); + + if (machine_is_ams_delta()) + rate /= 4; + if (machine_is_omap_h3()) + rate /= 3; + r = clk_set_rate(lcdc.lcd_ck, rate); + if (r) { + dev_err(fbdev->dev, "failed to adjust LCD rate\n"); + goto fail1; + } + clk_enable(lcdc.lcd_ck); + + r = request_irq(OMAP_LCDC_IRQ, lcdc_irq_handler, 0, MODULE_NAME, fbdev); + if (r) { + dev_err(fbdev->dev, "unable to get IRQ\n"); + goto fail2; + } + + r = omap_request_lcd_dma(lcdc_dma_handler, NULL); + if (r) { + dev_err(fbdev->dev, "unable to get LCD DMA\n"); + goto fail3; + } + + omap_set_lcd_dma_single_transfer(ext_mode); + omap_set_lcd_dma_ext_controller(ext_mode); + + if (!ext_mode) + if ((r = alloc_palette_ram()) < 0) + goto fail4; + + if ((r = setup_fbmem(req_vram)) < 0) + goto fail5; + + pr_info("omapfb: LCDC initialized\n"); + + return 0; +fail5: + if (!ext_mode) + free_palette_ram(); +fail4: + omap_free_lcd_dma(); +fail3: + free_irq(OMAP_LCDC_IRQ, lcdc.fbdev); +fail2: + clk_disable(lcdc.lcd_ck); +fail1: + clk_put(lcdc.lcd_ck); +fail0: + return r; +} + +static void omap_lcdc_cleanup(void) +{ + if (!lcdc.ext_mode) + free_palette_ram(); + cleanup_fbmem(); + omap_free_lcd_dma(); + free_irq(OMAP_LCDC_IRQ, lcdc.fbdev); + clk_disable(lcdc.lcd_ck); + clk_put(lcdc.lcd_ck); +} + +const struct lcd_ctrl omap1_int_ctrl = { + .name = "internal", + .init = omap_lcdc_init, + .cleanup = omap_lcdc_cleanup, + .get_caps = omap_lcdc_get_caps, + .set_update_mode = omap_lcdc_set_update_mode, + .get_update_mode = omap_lcdc_get_update_mode, + .update_window = NULL, + .suspend = omap_lcdc_suspend, + .resume = omap_lcdc_resume, + .setup_plane = omap_lcdc_setup_plane, + .enable_plane = omap_lcdc_enable_plane, + .setcolreg = omap_lcdc_setcolreg, +}; diff --git a/drivers/video/omap/lcdc.h b/drivers/video/omap/lcdc.h new file mode 100644 index 000000000000..adb731e5314a --- /dev/null +++ b/drivers/video/omap/lcdc.h @@ -0,0 +1,7 @@ +#ifndef LCDC_H +#define LCDC_H + +int omap_lcdc_set_dma_callback(void (*callback)(void *data), void *data); +void omap_lcdc_free_dma_callback(void); + +#endif diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c new file mode 100644 index 000000000000..14d0f7a11145 --- /dev/null +++ b/drivers/video/omap/omapfb_main.c @@ -0,0 +1,1941 @@ +/* + * Framebuffer driver for TI OMAP boards + * + * Copyright (C) 2004 Nokia Corporation + * Author: Imre Deak <imre.deak@nokia.com> + * + * Acknowledgements: + * Alex McMains <aam@ridgerun.com> - Original driver + * Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements + * Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API + * Texas Instruments - H3 support + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/platform_device.h> +#include <linux/uaccess.h> + +#include <asm/mach-types.h> +#include <asm/arch/dma.h> +#include <asm/arch/omapfb.h> + +#define MODULE_NAME "omapfb" + +static unsigned int def_accel; +static unsigned long def_vram[OMAPFB_PLANE_NUM]; +static int def_vram_cnt; +static unsigned long def_vxres; +static unsigned long def_vyres; +static unsigned int def_rotate; +static unsigned int def_mirror; + +#ifdef CONFIG_FB_OMAP_MANUAL_UPDATE +static int manual_update = 1; +#else +static int manual_update; +#endif + +static struct platform_device *fbdev_pdev; +static struct lcd_panel *fbdev_panel; +static struct omapfb_device *omapfb_dev; + +struct caps_table_struct { + unsigned long flag; + const char *name; +}; + +static struct caps_table_struct ctrl_caps[] = { + { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" }, + { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" }, + { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" }, + { OMAPFB_CAPS_PLANE_SCALE, "scale plane" }, + { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" }, + { OMAPFB_CAPS_WINDOW_SCALE, "scale window" }, + { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" }, + { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" }, +}; + +static struct caps_table_struct color_caps[] = { + { 1 << OMAPFB_COLOR_RGB565, "RGB565", }, + { 1 << OMAPFB_COLOR_YUV422, "YUV422", }, + { 1 << OMAPFB_COLOR_YUV420, "YUV420", }, + { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", }, + { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", }, + { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", }, + { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", }, + { 1 << OMAPFB_COLOR_RGB444, "RGB444", }, + { 1 << OMAPFB_COLOR_YUY422, "YUY422", }, +}; + +/* + * --------------------------------------------------------------------------- + * LCD panel + * --------------------------------------------------------------------------- + */ +extern struct lcd_ctrl omap1_int_ctrl; +extern struct lcd_ctrl omap2_int_ctrl; +extern struct lcd_ctrl hwa742_ctrl; +extern struct lcd_ctrl blizzard_ctrl; + +static struct lcd_ctrl *ctrls[] = { +#ifdef CONFIG_ARCH_OMAP1 + &omap1_int_ctrl, +#else + &omap2_int_ctrl, +#endif + +#ifdef CONFIG_FB_OMAP_LCDC_HWA742 + &hwa742_ctrl, +#endif +#ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD + &blizzard_ctrl, +#endif +}; + +#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL +#ifdef CONFIG_ARCH_OMAP1 +extern struct lcd_ctrl_extif omap1_ext_if; +#else +extern struct lcd_ctrl_extif omap2_ext_if; +#endif +#endif + +static void omapfb_rqueue_lock(struct omapfb_device *fbdev) +{ + mutex_lock(&fbdev->rqueue_mutex); +} + +static void omapfb_rqueue_unlock(struct omapfb_device *fbdev) +{ + mutex_unlock(&fbdev->rqueue_mutex); +} + +/* + * --------------------------------------------------------------------------- + * LCD controller and LCD DMA + * --------------------------------------------------------------------------- + */ +/* Lookup table to map elem size to elem type. */ +static const int dma_elem_type[] = { + 0, + OMAP_DMA_DATA_TYPE_S8, + OMAP_DMA_DATA_TYPE_S16, + 0, + OMAP_DMA_DATA_TYPE_S32, +}; + +/* + * Allocate resources needed for LCD controller and LCD DMA operations. Video + * memory is allocated from system memory according to the virtual display + * size, except if a bigger memory size is specified explicitly as a kernel + * parameter. + */ +static int ctrl_init(struct omapfb_device *fbdev) +{ + int r; + int i; + + /* kernel/module vram parameters override boot tags/board config */ + if (def_vram_cnt) { + for (i = 0; i < def_vram_cnt; i++) + fbdev->mem_desc.region[i].size = + PAGE_ALIGN(def_vram[i]); + fbdev->mem_desc.region_cnt = i; + } else { + struct omapfb_platform_data *conf; + + conf = fbdev->dev->platform_data; + fbdev->mem_desc = conf->mem_desc; + } + + if (!fbdev->mem_desc.region_cnt) { + struct lcd_panel *panel = fbdev->panel; + int def_size; + int bpp = panel->bpp; + + /* 12 bpp is packed in 16 bits */ + if (bpp == 12) + bpp = 16; + def_size = def_vxres * def_vyres * bpp / 8; + fbdev->mem_desc.region_cnt = 1; + fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size); + } + r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc); + if (r < 0) { + dev_err(fbdev->dev, "controller initialization failed (%d)\n", + r); + return r; + } + +#ifdef DEBUG + for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { + dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n", + i, + fbdev->mem_desc.region[i].paddr, + fbdev->mem_desc.region[i].vaddr, + fbdev->mem_desc.region[i].size); + } +#endif + return 0; +} + +static void ctrl_cleanup(struct omapfb_device *fbdev) +{ + fbdev->ctrl->cleanup(); +} + +/* Must be called with fbdev->rqueue_mutex held. */ +static int ctrl_change_mode(struct fb_info *fbi) +{ + int r; + unsigned long offset; + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct fb_var_screeninfo *var = &fbi->var; + + offset = var->yoffset * fbi->fix.line_length + + var->xoffset * var->bits_per_pixel / 8; + + if (fbdev->ctrl->sync) + fbdev->ctrl->sync(); + r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out, + offset, var->xres_virtual, + plane->info.pos_x, plane->info.pos_y, + var->xres, var->yres, plane->color_mode); + if (fbdev->ctrl->set_scale != NULL) + r = fbdev->ctrl->set_scale(plane->idx, + var->xres, var->yres, + plane->info.out_width, + plane->info.out_height); + + return r; +} + +/* + * --------------------------------------------------------------------------- + * fbdev framework callbacks and the ioctl interface + * --------------------------------------------------------------------------- + */ +/* Called each time the omapfb device is opened */ +static int omapfb_open(struct fb_info *info, int user) +{ + return 0; +} + +static void omapfb_sync(struct fb_info *info); + +/* Called when the omapfb device is closed. We make sure that any pending + * gfx DMA operations are ended, before we return. */ +static int omapfb_release(struct fb_info *info, int user) +{ + omapfb_sync(info); + return 0; +} + +/* Store a single color palette entry into a pseudo palette or the hardware + * palette if one is available. For now we support only 16bpp and thus store + * the entry only to the pseudo palette. + */ +static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green, + u_int blue, u_int transp, int update_hw_pal) +{ + struct omapfb_plane_struct *plane = info->par; + struct omapfb_device *fbdev = plane->fbdev; + struct fb_var_screeninfo *var = &info->var; + int r = 0; + + switch (plane->color_mode) { + case OMAPFB_COLOR_YUV422: + case OMAPFB_COLOR_YUV420: + case OMAPFB_COLOR_YUY422: + r = -EINVAL; + break; + case OMAPFB_COLOR_CLUT_8BPP: + case OMAPFB_COLOR_CLUT_4BPP: + case OMAPFB_COLOR_CLUT_2BPP: + case OMAPFB_COLOR_CLUT_1BPP: + if (fbdev->ctrl->setcolreg) + r = fbdev->ctrl->setcolreg(regno, red, green, blue, + transp, update_hw_pal); + /* Fallthrough */ + case OMAPFB_COLOR_RGB565: + case OMAPFB_COLOR_RGB444: + if (r != 0) + break; + + if (regno < 0) { + r = -EINVAL; + break; + } + + if (regno < 16) { + u16 pal; + pal = ((red >> (16 - var->red.length)) << + var->red.offset) | + ((green >> (16 - var->green.length)) << + var->green.offset) | + (blue >> (16 - var->blue.length)); + ((u32 *)(info->pseudo_palette))[regno] = pal; + } + break; + default: + BUG(); + } + return r; +} + +static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, + u_int transp, struct fb_info *info) +{ + return _setcolreg(info, regno, red, green, blue, transp, 1); +} + +static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) +{ + int count, index, r; + u16 *red, *green, *blue, *transp; + u16 trans = 0xffff; + + red = cmap->red; + green = cmap->green; + blue = cmap->blue; + transp = cmap->transp; + index = cmap->start; + + for (count = 0; count < cmap->len; count++) { + if (transp) + trans = *transp++; + r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, + count == cmap->len - 1); + if (r != 0) + return r; + } + + return 0; +} + +static int omapfb_update_full_screen(struct fb_info *fbi); + +static int omapfb_blank(int blank, struct fb_info *fbi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + int do_update = 0; + int r = 0; + + omapfb_rqueue_lock(fbdev); + switch (blank) { + case VESA_NO_BLANKING: + if (fbdev->state == OMAPFB_SUSPENDED) { + if (fbdev->ctrl->resume) + fbdev->ctrl->resume(); + fbdev->panel->enable(fbdev->panel); + fbdev->state = OMAPFB_ACTIVE; + if (fbdev->ctrl->get_update_mode() == + OMAPFB_MANUAL_UPDATE) + do_update = 1; + } + break; + case VESA_POWERDOWN: + if (fbdev->state == OMAPFB_ACTIVE) { + fbdev->panel->disable(fbdev->panel); + if (fbdev->ctrl->suspend) + fbdev->ctrl->suspend(); + fbdev->state = OMAPFB_SUSPENDED; + } + break; + default: + r = -EINVAL; + } + omapfb_rqueue_unlock(fbdev); + + if (r == 0 && do_update) + r = omapfb_update_full_screen(fbi); + + return r; +} + +static void omapfb_sync(struct fb_info *fbi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + + omapfb_rqueue_lock(fbdev); + if (fbdev->ctrl->sync) + fbdev->ctrl->sync(); + omapfb_rqueue_unlock(fbdev); +} + +/* + * Set fb_info.fix fields and also updates fbdev. + * When calling this fb_info.var must be set up already. + */ +static void set_fb_fix(struct fb_info *fbi) +{ + struct fb_fix_screeninfo *fix = &fbi->fix; + struct fb_var_screeninfo *var = &fbi->var; + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_mem_region *rg; + int bpp; + + rg = &plane->fbdev->mem_desc.region[plane->idx]; + fbi->screen_base = (char __iomem *)rg->vaddr; + fix->smem_start = rg->paddr; + fix->smem_len = rg->size; + + fix->type = FB_TYPE_PACKED_PIXELS; + bpp = var->bits_per_pixel; + if (var->nonstd) + fix->visual = FB_VISUAL_PSEUDOCOLOR; + else switch (var->bits_per_pixel) { + case 16: + case 12: + fix->visual = FB_VISUAL_TRUECOLOR; + /* 12bpp is stored in 16 bits */ + bpp = 16; + break; + case 1: + case 2: + case 4: + case 8: + fix->visual = FB_VISUAL_PSEUDOCOLOR; + break; + } + fix->accel = FB_ACCEL_OMAP1610; + fix->line_length = var->xres_virtual * bpp / 8; +} + +static int set_color_mode(struct omapfb_plane_struct *plane, + struct fb_var_screeninfo *var) +{ + switch (var->nonstd) { + case 0: + break; + case OMAPFB_COLOR_YUV422: + var->bits_per_pixel = 16; + plane->color_mode = var->nonstd; + return 0; + case OMAPFB_COLOR_YUV420: + var->bits_per_pixel = 12; + plane->color_mode = var->nonstd; + return 0; + case OMAPFB_COLOR_YUY422: + var->bits_per_pixel = 16; + plane->color_mode = var->nonstd; + return 0; + default: + return -EINVAL; + } + + switch (var->bits_per_pixel) { + case 1: + plane->color_mode = OMAPFB_COLOR_CLUT_1BPP; + return 0; + case 2: + plane->color_mode = OMAPFB_COLOR_CLUT_2BPP; + return 0; + case 4: + plane->color_mode = OMAPFB_COLOR_CLUT_4BPP; + return 0; + case 8: + plane->color_mode = OMAPFB_COLOR_CLUT_8BPP; + return 0; + case 12: + var->bits_per_pixel = 16; + plane->color_mode = OMAPFB_COLOR_RGB444; + return 0; + case 16: + plane->color_mode = OMAPFB_COLOR_RGB565; + return 0; + default: + return -EINVAL; + } +} + +/* + * Check the values in var against our capabilities and in case of out of + * bound values try to adjust them. + */ +static int set_fb_var(struct fb_info *fbi, + struct fb_var_screeninfo *var) +{ + int bpp; + unsigned long max_frame_size; + unsigned long line_size; + int xres_min, xres_max; + int yres_min, yres_max; + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct lcd_panel *panel = fbdev->panel; + + if (set_color_mode(plane, var) < 0) + return -EINVAL; + + bpp = var->bits_per_pixel; + if (plane->color_mode == OMAPFB_COLOR_RGB444) + bpp = 16; + + switch (var->rotate) { + case 0: + case 180: + xres_min = OMAPFB_PLANE_XRES_MIN; + xres_max = panel->x_res; + yres_min = OMAPFB_PLANE_YRES_MIN; + yres_max = panel->y_res; + if (cpu_is_omap15xx()) { + var->xres = panel->x_res; + var->yres = panel->y_res; + } + break; + case 90: + case 270: + xres_min = OMAPFB_PLANE_YRES_MIN; + xres_max = panel->y_res; + yres_min = OMAPFB_PLANE_XRES_MIN; + yres_max = panel->x_res; + if (cpu_is_omap15xx()) { + var->xres = panel->y_res; + var->yres = panel->x_res; + } + break; + default: + return -EINVAL; + } + + if (var->xres < xres_min) + var->xres = xres_min; + if (var->yres < yres_min) + var->yres = yres_min; + if (var->xres > xres_max) + var->xres = xres_max; + if (var->yres > yres_max) + var->yres = yres_max; + + if (var->xres_virtual < var->xres) + var->xres_virtual = var->xres; + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + max_frame_size = fbdev->mem_desc.region[plane->idx].size; + line_size = var->xres_virtual * bpp / 8; + if (line_size * var->yres_virtual > max_frame_size) { + /* Try to keep yres_virtual first */ + line_size = max_frame_size / var->yres_virtual; + var->xres_virtual = line_size * 8 / bpp; + if (var->xres_virtual < var->xres) { + /* Still doesn't fit. Shrink yres_virtual too */ + var->xres_virtual = var->xres; + line_size = var->xres * bpp / 8; + var->yres_virtual = max_frame_size / line_size; + } + /* Recheck this, as the virtual size changed. */ + if (var->xres_virtual < var->xres) + var->xres = var->xres_virtual; + if (var->yres_virtual < var->yres) + var->yres = var->yres_virtual; + if (var->xres < xres_min || var->yres < yres_min) + return -EINVAL; + } + if (var->xres + var->xoffset > var->xres_virtual) + var->xoffset = var->xres_virtual - var->xres; + if (var->yres + var->yoffset > var->yres_virtual) + var->yoffset = var->yres_virtual - var->yres; + line_size = var->xres * bpp / 8; + + if (plane->color_mode == OMAPFB_COLOR_RGB444) { + var->red.offset = 8; var->red.length = 4; + var->red.msb_right = 0; + var->green.offset = 4; var->green.length = 4; + var->green.msb_right = 0; + var->blue.offset = 0; var->blue.length = 4; + var->blue.msb_right = 0; + } else { + var->red.offset = 11; var->red.length = 5; + var->red.msb_right = 0; + var->green.offset = 5; var->green.length = 6; + var->green.msb_right = 0; + var->blue.offset = 0; var->blue.length = 5; + var->blue.msb_right = 0; + } + + var->height = -1; + var->width = -1; + var->grayscale = 0; + + /* pixclock in ps, the rest in pixclock */ + var->pixclock = 10000000 / (panel->pixel_clock / 100); + var->left_margin = panel->hfp; + var->right_margin = panel->hbp; + var->upper_margin = panel->vfp; + var->lower_margin = panel->vbp; + var->hsync_len = panel->hsw; + var->vsync_len = panel->vsw; + + /* TODO: get these from panel->config */ + var->vmode = FB_VMODE_NONINTERLACED; + var->sync = 0; + + return 0; +} + + +/* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */ +static void omapfb_rotate(struct fb_info *fbi, int rotate) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + + omapfb_rqueue_lock(fbdev); + if (cpu_is_omap15xx() && rotate != fbi->var.rotate) { + struct fb_var_screeninfo *new_var = &fbdev->new_var; + + memcpy(new_var, &fbi->var, sizeof(*new_var)); + new_var->rotate = rotate; + if (set_fb_var(fbi, new_var) == 0 && + memcmp(new_var, &fbi->var, sizeof(*new_var))) { + memcpy(&fbi->var, new_var, sizeof(*new_var)); + ctrl_change_mode(fbi); + } + } + omapfb_rqueue_unlock(fbdev); +} + +/* + * Set new x,y offsets in the virtual display for the visible area and switch + * to the new mode. + */ +static int omapfb_pan_display(struct fb_var_screeninfo *var, + struct fb_info *fbi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + int r = 0; + + omapfb_rqueue_lock(fbdev); + if (var->xoffset != fbi->var.xoffset || + var->yoffset != fbi->var.yoffset) { + struct fb_var_screeninfo *new_var = &fbdev->new_var; + + memcpy(new_var, &fbi->var, sizeof(*new_var)); + new_var->xoffset = var->xoffset; + new_var->yoffset = var->yoffset; + if (set_fb_var(fbi, new_var)) + r = -EINVAL; + else { + memcpy(&fbi->var, new_var, sizeof(*new_var)); + ctrl_change_mode(fbi); + } + } + omapfb_rqueue_unlock(fbdev); + + return r; +} + +/* Set mirror to vertical axis and switch to the new mode. */ +static int omapfb_mirror(struct fb_info *fbi, int mirror) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + int r = 0; + + omapfb_rqueue_lock(fbdev); + mirror = mirror ? 1 : 0; + if (cpu_is_omap15xx()) + r = -EINVAL; + else if (mirror != plane->info.mirror) { + plane->info.mirror = mirror; + r = ctrl_change_mode(fbi); + } + omapfb_rqueue_unlock(fbdev); + + return r; +} + +/* + * Check values in var, try to adjust them in case of out of bound values if + * possible, or return error. + */ +static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + int r; + + omapfb_rqueue_lock(fbdev); + if (fbdev->ctrl->sync != NULL) + fbdev->ctrl->sync(); + r = set_fb_var(fbi, var); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +/* + * Switch to a new mode. The parameters for it has been check already by + * omapfb_check_var. + */ +static int omapfb_set_par(struct fb_info *fbi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + int r = 0; + + omapfb_rqueue_lock(fbdev); + set_fb_fix(fbi); + r = ctrl_change_mode(fbi); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +int omapfb_update_window_async(struct fb_info *fbi, + struct omapfb_update_window *win, + void (*callback)(void *), + void *callback_data) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct fb_var_screeninfo *var; + + var = &fbi->var; + if (win->x >= var->xres || win->y >= var->yres || + win->out_x > var->xres || win->out_y >= var->yres) + return -EINVAL; + + if (!fbdev->ctrl->update_window || + fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) + return -ENODEV; + + if (win->x + win->width >= var->xres) + win->width = var->xres - win->x; + if (win->y + win->height >= var->yres) + win->height = var->yres - win->y; + /* The out sizes should be cropped to the LCD size */ + if (win->out_x + win->out_width > fbdev->panel->x_res) + win->out_width = fbdev->panel->x_res - win->out_x; + if (win->out_y + win->out_height > fbdev->panel->y_res) + win->out_height = fbdev->panel->y_res - win->out_y; + if (!win->width || !win->height || !win->out_width || !win->out_height) + return 0; + + return fbdev->ctrl->update_window(fbi, win, callback, callback_data); +} +EXPORT_SYMBOL(omapfb_update_window_async); + +static int omapfb_update_win(struct fb_info *fbi, + struct omapfb_update_window *win) +{ + struct omapfb_plane_struct *plane = fbi->par; + int ret; + + omapfb_rqueue_lock(plane->fbdev); + ret = omapfb_update_window_async(fbi, win, NULL, 0); + omapfb_rqueue_unlock(plane->fbdev); + + return ret; +} + +static int omapfb_update_full_screen(struct fb_info *fbi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct omapfb_update_window win; + int r; + + if (!fbdev->ctrl->update_window || + fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) + return -ENODEV; + + win.x = 0; + win.y = 0; + win.width = fbi->var.xres; + win.height = fbi->var.yres; + win.out_x = 0; + win.out_y = 0; + win.out_width = fbi->var.xres; + win.out_height = fbi->var.yres; + win.format = 0; + + omapfb_rqueue_lock(fbdev); + r = fbdev->ctrl->update_window(fbi, &win, NULL, 0); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct lcd_panel *panel = fbdev->panel; + struct omapfb_plane_info old_info; + int r = 0; + + if (pi->pos_x + pi->out_width > panel->x_res || + pi->pos_y + pi->out_height > panel->y_res) + return -EINVAL; + + omapfb_rqueue_lock(fbdev); + if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) { + /* + * This plane's memory was freed, can't enable it + * until it's reallocated. + */ + r = -EINVAL; + goto out; + } + old_info = plane->info; + plane->info = *pi; + if (pi->enabled) { + r = ctrl_change_mode(fbi); + if (r < 0) { + plane->info = old_info; + goto out; + } + } + r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled); + if (r < 0) { + plane->info = old_info; + goto out; + } +out: + omapfb_rqueue_unlock(fbdev); + return r; +} + +static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) +{ + struct omapfb_plane_struct *plane = fbi->par; + + *pi = plane->info; + return 0; +} + +static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx]; + size_t size; + int r = 0; + + if (fbdev->ctrl->setup_mem == NULL) + return -ENODEV; + if (mi->type > OMAPFB_MEMTYPE_MAX) + return -EINVAL; + + size = PAGE_ALIGN(mi->size); + omapfb_rqueue_lock(fbdev); + if (plane->info.enabled) { + r = -EBUSY; + goto out; + } + if (rg->size != size || rg->type != mi->type) { + struct fb_var_screeninfo *new_var = &fbdev->new_var; + unsigned long old_size = rg->size; + u8 old_type = rg->type; + unsigned long paddr; + + rg->size = size; + rg->type = mi->type; + /* + * size == 0 is a special case, for which we + * don't check / adjust the screen parameters. + * This isn't a problem since the plane can't + * be reenabled unless its size is > 0. + */ + if (old_size != size && size) { + if (size) { + memcpy(new_var, &fbi->var, sizeof(*new_var)); + r = set_fb_var(fbi, new_var); + if (r < 0) + goto out; + } + } + + if (fbdev->ctrl->sync) + fbdev->ctrl->sync(); + r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr); + if (r < 0) { + /* Revert changes. */ + rg->size = old_size; + rg->type = old_type; + goto out; + } + rg->paddr = paddr; + + if (old_size != size) { + if (size) { + memcpy(&fbi->var, new_var, sizeof(fbi->var)); + set_fb_fix(fbi); + } else { + /* + * Set these explicitly to indicate that the + * plane memory is dealloce'd, the other + * screen parameters in var / fix are invalid. + */ + fbi->fix.smem_start = 0; + fbi->fix.smem_len = 0; + } + } + } +out: + omapfb_rqueue_unlock(fbdev); + + return r; +} + +static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct omapfb_mem_region *rg; + + rg = &fbdev->mem_desc.region[plane->idx]; + memset(mi, 0, sizeof(*mi)); + mi->size = rg->size; + mi->type = rg->type; + + return 0; +} + +static int omapfb_set_color_key(struct omapfb_device *fbdev, + struct omapfb_color_key *ck) +{ + int r; + + if (!fbdev->ctrl->set_color_key) + return -ENODEV; + + omapfb_rqueue_lock(fbdev); + r = fbdev->ctrl->set_color_key(ck); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +static int omapfb_get_color_key(struct omapfb_device *fbdev, + struct omapfb_color_key *ck) +{ + int r; + + if (!fbdev->ctrl->get_color_key) + return -ENODEV; + + omapfb_rqueue_lock(fbdev); + r = fbdev->ctrl->get_color_key(ck); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM]; +static int notifier_inited; + +static void omapfb_init_notifier(void) +{ + int i; + + for (i = 0; i < OMAPFB_PLANE_NUM; i++) + BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]); +} + +int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb, + omapfb_notifier_callback_t callback, + void *callback_data) +{ + int r; + + if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM) + return -EINVAL; + + if (!notifier_inited) { + omapfb_init_notifier(); + notifier_inited = 1; + } + + omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *, + unsigned long, void *))callback; + omapfb_nb->data = callback_data; + r = blocking_notifier_chain_register( + &omapfb_client_list[omapfb_nb->plane_idx], + &omapfb_nb->nb); + if (r) + return r; + if (omapfb_dev != NULL && + omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) { + omapfb_dev->ctrl->bind_client(omapfb_nb); + } + + return 0; +} +EXPORT_SYMBOL(omapfb_register_client); + +int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb) +{ + return blocking_notifier_chain_unregister( + &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb); +} +EXPORT_SYMBOL(omapfb_unregister_client); + +void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event) +{ + int i; + + if (!notifier_inited) + /* no client registered yet */ + return; + + for (i = 0; i < OMAPFB_PLANE_NUM; i++) + blocking_notifier_call_chain(&omapfb_client_list[i], event, + fbdev->fb_info[i]); +} +EXPORT_SYMBOL(omapfb_notify_clients); + +static int omapfb_set_update_mode(struct omapfb_device *fbdev, + enum omapfb_update_mode mode) +{ + int r; + + omapfb_rqueue_lock(fbdev); + r = fbdev->ctrl->set_update_mode(mode); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev) +{ + int r; + + omapfb_rqueue_lock(fbdev); + r = fbdev->ctrl->get_update_mode(); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +static void omapfb_get_caps(struct omapfb_device *fbdev, int plane, + struct omapfb_caps *caps) +{ + memset(caps, 0, sizeof(*caps)); + fbdev->ctrl->get_caps(plane, caps); + caps->ctrl |= fbdev->panel->get_caps(fbdev->panel); +} + +/* For lcd testing */ +void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval) +{ + omapfb_rqueue_lock(fbdev); + *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval; + if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) { + struct omapfb_update_window win; + + memset(&win, 0, sizeof(win)); + win.width = 2; + win.height = 2; + win.out_width = 2; + win.out_height = 2; + fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, 0); + } + omapfb_rqueue_unlock(fbdev); +} +EXPORT_SYMBOL(omapfb_write_first_pixel); + +/* + * Ioctl interface. Part of the kernel mode frame buffer API is duplicated + * here to be accessible by user mode code. + */ +static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, + unsigned long arg) +{ + struct omapfb_plane_struct *plane = fbi->par; + struct omapfb_device *fbdev = plane->fbdev; + struct fb_ops *ops = fbi->fbops; + union { + struct omapfb_update_window update_window; + struct omapfb_plane_info plane_info; + struct omapfb_mem_info mem_info; + struct omapfb_color_key color_key; + enum omapfb_update_mode update_mode; + struct omapfb_caps caps; + unsigned int mirror; + int plane_out; + int enable_plane; + } p; + int r = 0; + + BUG_ON(!ops); + switch (cmd) { + case OMAPFB_MIRROR: + if (get_user(p.mirror, (int __user *)arg)) + r = -EFAULT; + else + omapfb_mirror(fbi, p.mirror); + break; + case OMAPFB_SYNC_GFX: + omapfb_sync(fbi); + break; + case OMAPFB_VSYNC: + break; + case OMAPFB_SET_UPDATE_MODE: + if (get_user(p.update_mode, (int __user *)arg)) + r = -EFAULT; + else + r = omapfb_set_update_mode(fbdev, p.update_mode); + break; + case OMAPFB_GET_UPDATE_MODE: + p.update_mode = omapfb_get_update_mode(fbdev); + if (put_user(p.update_mode, + (enum omapfb_update_mode __user *)arg)) + r = -EFAULT; + break; + case OMAPFB_UPDATE_WINDOW_OLD: + if (copy_from_user(&p.update_window, (void __user *)arg, + sizeof(struct omapfb_update_window_old))) + r = -EFAULT; + else { + struct omapfb_update_window *u = &p.update_window; + u->out_x = u->x; + u->out_y = u->y; + u->out_width = u->width; + u->out_height = u->height; + memset(u->reserved, 0, sizeof(u->reserved)); + r = omapfb_update_win(fbi, u); + } + break; + case OMAPFB_UPDATE_WINDOW: + if (copy_from_user(&p.update_window, (void __user *)arg, + sizeof(p.update_window))) + r = -EFAULT; + else + r = omapfb_update_win(fbi, &p.update_window); + break; + case OMAPFB_SETUP_PLANE: + if (copy_from_user(&p.plane_info, (void __user *)arg, + sizeof(p.plane_info))) + r = -EFAULT; + else + r = omapfb_setup_plane(fbi, &p.plane_info); + break; + case OMAPFB_QUERY_PLANE: + if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0) + break; + if (copy_to_user((void __user *)arg, &p.plane_info, + sizeof(p.plane_info))) + r = -EFAULT; + break; + case OMAPFB_SETUP_MEM: + if (copy_from_user(&p.mem_info, (void __user *)arg, + sizeof(p.mem_info))) + r = -EFAULT; + else + r = omapfb_setup_mem(fbi, &p.mem_info); + break; + case OMAPFB_QUERY_MEM: + if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0) + break; + if (copy_to_user((void __user *)arg, &p.mem_info, + sizeof(p.mem_info))) + r = -EFAULT; + break; + case OMAPFB_SET_COLOR_KEY: + if (copy_from_user(&p.color_key, (void __user *)arg, + sizeof(p.color_key))) + r = -EFAULT; + else + r = omapfb_set_color_key(fbdev, &p.color_key); + break; + case OMAPFB_GET_COLOR_KEY: + if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0) + break; + if (copy_to_user((void __user *)arg, &p.color_key, + sizeof(p.color_key))) + r = -EFAULT; + break; + case OMAPFB_GET_CAPS: + omapfb_get_caps(fbdev, plane->idx, &p.caps); + if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) + r = -EFAULT; + break; + case OMAPFB_LCD_TEST: + { + int test_num; + + if (get_user(test_num, (int __user *)arg)) { + r = -EFAULT; + break; + } + if (!fbdev->panel->run_test) { + r = -EINVAL; + break; + } + r = fbdev->panel->run_test(fbdev->panel, test_num); + break; + } + case OMAPFB_CTRL_TEST: + { + int test_num; + + if (get_user(test_num, (int __user *)arg)) { + r = -EFAULT; + break; + } + if (!fbdev->ctrl->run_test) { + r = -EINVAL; + break; + } + r = fbdev->ctrl->run_test(test_num); + break; + } + default: + r = -EINVAL; + } + + return r; +} + +static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma) +{ + struct omapfb_plane_struct *plane = info->par; + struct omapfb_device *fbdev = plane->fbdev; + int r; + + omapfb_rqueue_lock(fbdev); + r = fbdev->ctrl->mmap(info, vma); + omapfb_rqueue_unlock(fbdev); + + return r; +} + +/* + * Callback table for the frame buffer framework. Some of these pointers + * will be changed according to the current setting of fb_info->accel_flags. + */ +static struct fb_ops omapfb_ops = { + .owner = THIS_MODULE, + .fb_open = omapfb_open, + .fb_release = omapfb_release, + .fb_setcolreg = omapfb_setcolreg, + .fb_setcmap = omapfb_setcmap, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_blank = omapfb_blank, + .fb_ioctl = omapfb_ioctl, + .fb_check_var = omapfb_check_var, + .fb_set_par = omapfb_set_par, + .fb_rotate = omapfb_rotate, + .fb_pan_display = omapfb_pan_display, +}; + +/* + * --------------------------------------------------------------------------- + * Sysfs interface + * --------------------------------------------------------------------------- + */ +/* omapfbX sysfs entries */ +static ssize_t omapfb_show_caps_num(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data; + int plane; + size_t size; + struct omapfb_caps caps; + + plane = 0; + size = 0; + while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { + omapfb_get_caps(fbdev, plane, &caps); + size += snprintf(&buf[size], PAGE_SIZE - size, + "plane#%d %#010x %#010x %#010x\n", + plane, caps.ctrl, caps.plane_color, caps.wnd_color); + plane++; + } + return size; +} + +static ssize_t omapfb_show_caps_text(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data; + int i; + struct omapfb_caps caps; + int plane; + size_t size; + + plane = 0; + size = 0; + while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { + omapfb_get_caps(fbdev, plane, &caps); + size += snprintf(&buf[size], PAGE_SIZE - size, + "plane#%d:\n", plane); + for (i = 0; i < ARRAY_SIZE(ctrl_caps) && + size < PAGE_SIZE; i++) { + if (ctrl_caps[i].flag & caps.ctrl) + size += snprintf(&buf[size], PAGE_SIZE - size, + " %s\n", ctrl_caps[i].name); + } + size += snprintf(&buf[size], PAGE_SIZE - size, + " plane colors:\n"); + for (i = 0; i < ARRAY_SIZE(color_caps) && + size < PAGE_SIZE; i++) { + if (color_caps[i].flag & caps.plane_color) + size += snprintf(&buf[size], PAGE_SIZE - size, + " %s\n", color_caps[i].name); + } + size += snprintf(&buf[size], PAGE_SIZE - size, + " window colors:\n"); + for (i = 0; i < ARRAY_SIZE(color_caps) && + size < PAGE_SIZE; i++) { + if (color_caps[i].flag & caps.wnd_color) + size += snprintf(&buf[size], PAGE_SIZE - size, + " %s\n", color_caps[i].name); + } + + plane++; + } + return size; +} + +static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL); +static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL); + +/* panel sysfs entries */ +static ssize_t omapfb_show_panel_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data; + + return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name); +} + +static ssize_t omapfb_show_bklight_level(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data; + int r; + + if (fbdev->panel->get_bklight_level) { + r = snprintf(buf, PAGE_SIZE, "%d\n", + fbdev->panel->get_bklight_level(fbdev->panel)); + } else + r = -ENODEV; + return r; +} + +static ssize_t omapfb_store_bklight_level(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data; + int r; + + if (fbdev->panel->set_bklight_level) { + unsigned int level; + + if (sscanf(buf, "%10d", &level) == 1) { + r = fbdev->panel->set_bklight_level(fbdev->panel, + level); + } else + r = -EINVAL; + } else + r = -ENODEV; + return r ? r : size; +} + +static ssize_t omapfb_show_bklight_max(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data; + int r; + + if (fbdev->panel->get_bklight_level) { + r = snprintf(buf, PAGE_SIZE, "%d\n", + fbdev->panel->get_bklight_max(fbdev->panel)); + } else + r = -ENODEV; + return r; +} + +static struct device_attribute dev_attr_panel_name = + __ATTR(name, 0444, omapfb_show_panel_name, NULL); +static DEVICE_ATTR(backlight_level, 0664, + omapfb_show_bklight_level, omapfb_store_bklight_level); +static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL); + +static struct attribute *panel_attrs[] = { + &dev_attr_panel_name.attr, + &dev_attr_backlight_level.attr, + &dev_attr_backlight_max.attr, + NULL, +}; + +static struct attribute_group panel_attr_grp = { + .name = "panel", + .attrs = panel_attrs, +}; + +/* ctrl sysfs entries */ +static ssize_t omapfb_show_ctrl_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data; + + return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name); +} + +static struct device_attribute dev_attr_ctrl_name = + __ATTR(name, 0444, omapfb_show_ctrl_name, NULL); + +static struct attribute *ctrl_attrs[] = { + &dev_attr_ctrl_name.attr, + NULL, +}; + +static struct attribute_group ctrl_attr_grp = { + .name = "ctrl", + .attrs = ctrl_attrs, +}; + +static int omapfb_register_sysfs(struct omapfb_device *fbdev) +{ + int r; + + if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num))) + goto fail0; + + if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text))) + goto fail1; + + if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp))) + goto fail2; + + if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp))) + goto fail3; + + return 0; +fail3: + sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); +fail2: + device_remove_file(fbdev->dev, &dev_attr_caps_text); +fail1: + device_remove_file(fbdev->dev, &dev_attr_caps_num); +fail0: + dev_err(fbdev->dev, "unable to register sysfs interface\n"); + return r; +} + +static void omapfb_unregister_sysfs(struct omapfb_device *fbdev) +{ + sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp); + sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); + device_remove_file(fbdev->dev, &dev_attr_caps_num); + device_remove_file(fbdev->dev, &dev_attr_caps_text); +} + +/* + * --------------------------------------------------------------------------- + * LDM callbacks + * --------------------------------------------------------------------------- + */ +/* Initialize system fb_info object and set the default video mode. + * The frame buffer memory already allocated by lcddma_init + */ +static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info) +{ + struct fb_var_screeninfo *var = &info->var; + struct fb_fix_screeninfo *fix = &info->fix; + int r = 0; + + info->fbops = &omapfb_ops; + info->flags = FBINFO_FLAG_DEFAULT; + + strncpy(fix->id, MODULE_NAME, sizeof(fix->id)); + + info->pseudo_palette = fbdev->pseudo_palette; + + var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0; + var->xres = def_vxres; + var->yres = def_vyres; + var->xres_virtual = def_vxres; + var->yres_virtual = def_vyres; + var->rotate = def_rotate; + var->bits_per_pixel = fbdev->panel->bpp; + + set_fb_var(info, var); + set_fb_fix(info); + + r = fb_alloc_cmap(&info->cmap, 16, 0); + if (r != 0) + dev_err(fbdev->dev, "unable to allocate color map memory\n"); + + return r; +} + +/* Release the fb_info object */ +static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi) +{ + fb_dealloc_cmap(&fbi->cmap); +} + +static void planes_cleanup(struct omapfb_device *fbdev) +{ + int i; + + for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { + if (fbdev->fb_info[i] == NULL) + break; + fbinfo_cleanup(fbdev, fbdev->fb_info[i]); + framebuffer_release(fbdev->fb_info[i]); + } +} + +static int planes_init(struct omapfb_device *fbdev) +{ + struct fb_info *fbi; + int i; + int r; + + for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { + struct omapfb_plane_struct *plane; + fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct), + fbdev->dev); + if (fbi == NULL) { + dev_err(fbdev->dev, + "unable to allocate memory for plane info\n"); + planes_cleanup(fbdev); + return -ENOMEM; + } + plane = fbi->par; + plane->idx = i; + plane->fbdev = fbdev; + plane->info.mirror = def_mirror; + fbdev->fb_info[i] = fbi; + + if ((r = fbinfo_init(fbdev, fbi)) < 0) { + framebuffer_release(fbi); + planes_cleanup(fbdev); + return r; + } + plane->info.out_width = fbi->var.xres; + plane->info.out_height = fbi->var.yres; + } + return 0; +} + +/* + * Free driver resources. Can be called to rollback an aborted initialization + * sequence. + */ +static void omapfb_free_resources(struct omapfb_device *fbdev, int state) +{ + int i; + + switch (state) { + case OMAPFB_ACTIVE: + for (i = 0; i < fbdev->mem_desc.region_cnt; i++) + unregister_framebuffer(fbdev->fb_info[i]); + case 7: + omapfb_unregister_sysfs(fbdev); + case 6: + fbdev->panel->disable(fbdev->panel); + case 5: + omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED); + case 4: + planes_cleanup(fbdev); + case 3: + ctrl_cleanup(fbdev); + case 2: + fbdev->panel->cleanup(fbdev->panel); + case 1: + dev_set_drvdata(fbdev->dev, NULL); + kfree(fbdev); + case 0: + /* nothing to free */ + break; + default: + BUG(); + } +} + +static int omapfb_find_ctrl(struct omapfb_device *fbdev) +{ + struct omapfb_platform_data *conf; + char name[17]; + int i; + + conf = fbdev->dev->platform_data; + + fbdev->ctrl = NULL; + + strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1); + name[sizeof(name) - 1] = '\0'; + + if (strcmp(name, "internal") == 0) { + fbdev->ctrl = fbdev->int_ctrl; + return 0; + } + + for (i = 0; i < ARRAY_SIZE(ctrls); i++) { + dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name); + if (strcmp(ctrls[i]->name, name) == 0) { + fbdev->ctrl = ctrls[i]; + break; + } + } + + if (fbdev->ctrl == NULL) { + dev_dbg(fbdev->dev, "ctrl %s not supported\n", name); + return -1; + } + + return 0; +} + +static void check_required_callbacks(struct omapfb_device *fbdev) +{ +#define _C(x) (fbdev->ctrl->x != NULL) +#define _P(x) (fbdev->panel->x != NULL) + BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL); + BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) && + _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) && + _P(init) && _P(cleanup) && _P(enable) && _P(disable) && + _P(get_caps))); +#undef _P +#undef _C +} + +/* + * Called by LDM binding to probe and attach a new device. + * Initialization sequence: + * 1. allocate system omapfb_device structure + * 2. select controller type according to platform configuration + * init LCD panel + * 3. init LCD controller and LCD DMA + * 4. init system fb_info structure for all planes + * 5. setup video mode for first plane and enable it + * 6. enable LCD panel + * 7. register sysfs attributes + * OMAPFB_ACTIVE: register system fb_info structure for all planes + */ +static int omapfb_do_probe(struct platform_device *pdev, + struct lcd_panel *panel) +{ + struct omapfb_device *fbdev = NULL; + int init_state; + unsigned long phz, hhz, vhz; + unsigned long vram; + int i; + int r = 0; + + init_state = 0; + + if (pdev->num_resources != 0) { + dev_err(&pdev->dev, "probed for an unknown device\n"); + r = -ENODEV; + goto cleanup; + } + + if (pdev->dev.platform_data == NULL) { + dev_err(&pdev->dev, "missing platform data\n"); + r = -ENOENT; + goto cleanup; + } + + fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL); + if (fbdev == NULL) { + dev_err(&pdev->dev, + "unable to allocate memory for device info\n"); + r = -ENOMEM; + goto cleanup; + } + init_state++; + + fbdev->dev = &pdev->dev; + fbdev->panel = panel; + platform_set_drvdata(pdev, fbdev); + + mutex_init(&fbdev->rqueue_mutex); + +#ifdef CONFIG_ARCH_OMAP1 + fbdev->int_ctrl = &omap1_int_ctrl; +#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL + fbdev->ext_if = &omap1_ext_if; +#endif +#else /* OMAP2 */ + fbdev->int_ctrl = &omap2_int_ctrl; +#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL + fbdev->ext_if = &omap2_ext_if; +#endif +#endif + if (omapfb_find_ctrl(fbdev) < 0) { + dev_err(fbdev->dev, + "LCD controller not found, board not supported\n"); + r = -ENODEV; + goto cleanup; + } + + r = fbdev->panel->init(fbdev->panel, fbdev); + if (r) + goto cleanup; + + pr_info("omapfb: configured for panel %s\n", fbdev->panel->name); + + def_vxres = def_vxres ? : fbdev->panel->x_res; + def_vyres = def_vyres ? : fbdev->panel->y_res; + + init_state++; + + r = ctrl_init(fbdev); + if (r) + goto cleanup; + if (fbdev->ctrl->mmap != NULL) + omapfb_ops.fb_mmap = omapfb_mmap; + init_state++; + + check_required_callbacks(fbdev); + + r = planes_init(fbdev); + if (r) + goto cleanup; + init_state++; + +#ifdef CONFIG_FB_OMAP_DMA_TUNE + /* Set DMA priority for EMIFF access to highest */ + if (cpu_class_is_omap1()) + omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15); +#endif + + r = ctrl_change_mode(fbdev->fb_info[0]); + if (r) { + dev_err(fbdev->dev, "mode setting failed\n"); + goto cleanup; + } + + /* GFX plane is enabled by default */ + r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1); + if (r) + goto cleanup; + + omapfb_set_update_mode(fbdev, manual_update ? + OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE); + init_state++; + + r = fbdev->panel->enable(fbdev->panel); + if (r) + goto cleanup; + init_state++; + + r = omapfb_register_sysfs(fbdev); + if (r) + goto cleanup; + init_state++; + + vram = 0; + for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { + r = register_framebuffer(fbdev->fb_info[i]); + if (r != 0) { + dev_err(fbdev->dev, + "registering framebuffer %d failed\n", i); + goto cleanup; + } + vram += fbdev->mem_desc.region[i].size; + } + + fbdev->state = OMAPFB_ACTIVE; + + panel = fbdev->panel; + phz = panel->pixel_clock * 1000; + hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw); + vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw); + + omapfb_dev = fbdev; + + pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n", + vram, fbdev->mem_desc.region_cnt); + pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz " + "vfreq %lu.%lu Hz\n", + phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10); + + return 0; + +cleanup: + omapfb_free_resources(fbdev, init_state); + + return r; +} + +static int omapfb_probe(struct platform_device *pdev) +{ + BUG_ON(fbdev_pdev != NULL); + + /* Delay actual initialization until the LCD is registered */ + fbdev_pdev = pdev; + if (fbdev_panel != NULL) + omapfb_do_probe(fbdev_pdev, fbdev_panel); + return 0; +} + +void omapfb_register_panel(struct lcd_panel *panel) +{ + BUG_ON(fbdev_panel != NULL); + + fbdev_panel = panel; + if (fbdev_pdev != NULL) + omapfb_do_probe(fbdev_pdev, fbdev_panel); +} + +/* Called when the device is being detached from the driver */ +static int omapfb_remove(struct platform_device *pdev) +{ + struct omapfb_device *fbdev = platform_get_drvdata(pdev); + enum omapfb_state saved_state = fbdev->state; + + /* FIXME: wait till completion of pending events */ + + fbdev->state = OMAPFB_DISABLED; + omapfb_free_resources(fbdev, saved_state); + + return 0; +} + +/* PM suspend */ +static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + struct omapfb_device *fbdev = platform_get_drvdata(pdev); + + omapfb_blank(VESA_POWERDOWN, fbdev->fb_info[0]); + + return 0; +} + +/* PM resume */ +static int omapfb_resume(struct platform_device *pdev) +{ + struct omapfb_device *fbdev = platform_get_drvdata(pdev); + + omapfb_blank(VESA_NO_BLANKING, fbdev->fb_info[0]); + return 0; +} + +static struct platform_driver omapfb_driver = { + .probe = omapfb_probe, + .remove = omapfb_remove, + .suspend = omapfb_suspend, + .resume = omapfb_resume, + .driver = { + .name = MODULE_NAME, + .owner = THIS_MODULE, + }, +}; + +#ifndef MODULE + +/* Process kernel command line parameters */ +static int __init omapfb_setup(char *options) +{ + char *this_opt = NULL; + int r = 0; + + pr_debug("omapfb: options %s\n", options); + + if (!options || !*options) + return 0; + + while (!r && (this_opt = strsep(&options, ",")) != NULL) { + if (!strncmp(this_opt, "accel", 5)) + def_accel = 1; + else if (!strncmp(this_opt, "vram:", 5)) { + char *suffix; + unsigned long vram; + vram = (simple_strtoul(this_opt + 5, &suffix, 0)); + switch (suffix[0]) { + case '\0': + break; + case 'm': + case 'M': + vram *= 1024; + /* Fall through */ + case 'k': + case 'K': + vram *= 1024; + break; + default: + pr_debug("omapfb: invalid vram suffix %c\n", + suffix[0]); + r = -1; + } + def_vram[def_vram_cnt++] = vram; + } + else if (!strncmp(this_opt, "vxres:", 6)) + def_vxres = simple_strtoul(this_opt + 6, NULL, 0); + else if (!strncmp(this_opt, "vyres:", 6)) + def_vyres = simple_strtoul(this_opt + 6, NULL, 0); + else if (!strncmp(this_opt, "rotate:", 7)) + def_rotate = (simple_strtoul(this_opt + 7, NULL, 0)); + else if (!strncmp(this_opt, "mirror:", 7)) + def_mirror = (simple_strtoul(this_opt + 7, NULL, 0)); + else if (!strncmp(this_opt, "manual_update", 13)) + manual_update = 1; + else { + pr_debug("omapfb: invalid option\n"); + r = -1; + } + } + + return r; +} + +#endif + +/* Register both the driver and the device */ +static int __init omapfb_init(void) +{ +#ifndef MODULE + char *option; + + if (fb_get_options("omapfb", &option)) + return -ENODEV; + omapfb_setup(option); +#endif + /* Register the driver with LDM */ + if (platform_driver_register(&omapfb_driver)) { + pr_debug("failed to register omapfb driver\n"); + return -ENODEV; + } + + return 0; +} + +static void __exit omapfb_cleanup(void) +{ + platform_driver_unregister(&omapfb_driver); +} + +module_param_named(accel, def_accel, uint, 0664); +module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664); +module_param_named(vxres, def_vxres, long, 0664); +module_param_named(vyres, def_vyres, long, 0664); +module_param_named(rotate, def_rotate, uint, 0664); +module_param_named(mirror, def_mirror, uint, 0664); +module_param_named(manual_update, manual_update, bool, 0664); + +module_init(omapfb_init); +module_exit(omapfb_cleanup); + +MODULE_DESCRIPTION("TI OMAP framebuffer driver"); +MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/omap/rfbi.c b/drivers/video/omap/rfbi.c new file mode 100644 index 000000000000..2b4269813b22 --- /dev/null +++ b/drivers/video/omap/rfbi.c @@ -0,0 +1,588 @@ +/* + * OMAP2 Remote Frame Buffer Interface support + * + * Copyright (C) 2005 Nokia Corporation + * Author: Juha Yrjölä <juha.yrjola@nokia.com> + * Imre Deak <imre.deak@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include <asm/arch/omapfb.h> + +#include "dispc.h" + +/* To work around an RFBI transfer rate limitation */ +#define OMAP_RFBI_RATE_LIMIT 1 + +#define RFBI_BASE 0x48050800 +#define RFBI_REVISION 0x0000 +#define RFBI_SYSCONFIG 0x0010 +#define RFBI_SYSSTATUS 0x0014 +#define RFBI_CONTROL 0x0040 +#define RFBI_PIXEL_CNT 0x0044 +#define RFBI_LINE_NUMBER 0x0048 +#define RFBI_CMD 0x004c +#define RFBI_PARAM 0x0050 +#define RFBI_DATA 0x0054 +#define RFBI_READ 0x0058 +#define RFBI_STATUS 0x005c +#define RFBI_CONFIG0 0x0060 +#define RFBI_ONOFF_TIME0 0x0064 +#define RFBI_CYCLE_TIME0 0x0068 +#define RFBI_DATA_CYCLE1_0 0x006c +#define RFBI_DATA_CYCLE2_0 0x0070 +#define RFBI_DATA_CYCLE3_0 0x0074 +#define RFBI_VSYNC_WIDTH 0x0090 +#define RFBI_HSYNC_WIDTH 0x0094 + +#define DISPC_BASE 0x48050400 +#define DISPC_CONTROL 0x0040 + +static struct { + u32 base; + void (*lcdc_callback)(void *data); + void *lcdc_callback_data; + unsigned long l4_khz; + int bits_per_cycle; + struct omapfb_device *fbdev; + struct clk *dss_ick; + struct clk *dss1_fck; + unsigned tearsync_pin_cnt; + unsigned tearsync_mode; +} rfbi; + +static inline void rfbi_write_reg(int idx, u32 val) +{ + __raw_writel(val, rfbi.base + idx); +} + +static inline u32 rfbi_read_reg(int idx) +{ + return __raw_readl(rfbi.base + idx); +} + +static int rfbi_get_clocks(void) +{ + if (IS_ERR((rfbi.dss_ick = clk_get(rfbi.fbdev->dev, "dss_ick")))) { + dev_err(rfbi.fbdev->dev, "can't get dss_ick"); + return PTR_ERR(rfbi.dss_ick); + } + + if (IS_ERR((rfbi.dss1_fck = clk_get(rfbi.fbdev->dev, "dss1_fck")))) { + dev_err(rfbi.fbdev->dev, "can't get dss1_fck"); + clk_put(rfbi.dss_ick); + return PTR_ERR(rfbi.dss1_fck); + } + + return 0; +} + +static void rfbi_put_clocks(void) +{ + clk_put(rfbi.dss1_fck); + clk_put(rfbi.dss_ick); +} + +static void rfbi_enable_clocks(int enable) +{ + if (enable) { + clk_enable(rfbi.dss_ick); + clk_enable(rfbi.dss1_fck); + } else { + clk_disable(rfbi.dss1_fck); + clk_disable(rfbi.dss_ick); + } +} + + +#ifdef VERBOSE +static void rfbi_print_timings(void) +{ + u32 l; + u32 time; + + l = rfbi_read_reg(RFBI_CONFIG0); + time = 1000000000 / rfbi.l4_khz; + if (l & (1 << 4)) + time *= 2; + + dev_dbg(rfbi.fbdev->dev, "Tick time %u ps\n", time); + l = rfbi_read_reg(RFBI_ONOFF_TIME0); + dev_dbg(rfbi.fbdev->dev, + "CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, " + "REONTIME %d, REOFFTIME %d\n", + l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f, + (l >> 20) & 0x0f, (l >> 24) & 0x3f); + + l = rfbi_read_reg(RFBI_CYCLE_TIME0); + dev_dbg(rfbi.fbdev->dev, + "WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, " + "ACCESSTIME %d\n", + (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f, + (l >> 22) & 0x3f); +} +#else +static void rfbi_print_timings(void) {} +#endif + +static void rfbi_set_timings(const struct extif_timings *t) +{ + u32 l; + + BUG_ON(!t->converted); + + rfbi_enable_clocks(1); + rfbi_write_reg(RFBI_ONOFF_TIME0, t->tim[0]); + rfbi_write_reg(RFBI_CYCLE_TIME0, t->tim[1]); + + l = rfbi_read_reg(RFBI_CONFIG0); + l &= ~(1 << 4); + l |= (t->tim[2] ? 1 : 0) << 4; + rfbi_write_reg(RFBI_CONFIG0, l); + + rfbi_print_timings(); + rfbi_enable_clocks(0); +} + +static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div) +{ + *clk_period = 1000000000 / rfbi.l4_khz; + *max_clk_div = 2; +} + +static int ps_to_rfbi_ticks(int time, int div) +{ + unsigned long tick_ps; + int ret; + + /* Calculate in picosecs to yield more exact results */ + tick_ps = 1000000000 / (rfbi.l4_khz) * div; + + ret = (time + tick_ps - 1) / tick_ps; + + return ret; +} + +#ifdef OMAP_RFBI_RATE_LIMIT +static unsigned long rfbi_get_max_tx_rate(void) +{ + unsigned long l4_rate, dss1_rate; + int min_l4_ticks = 0; + int i; + + /* According to TI this can't be calculated so make the + * adjustments for a couple of known frequencies and warn for + * others. + */ + static const struct { + unsigned long l4_clk; /* HZ */ + unsigned long dss1_clk; /* HZ */ + unsigned long min_l4_ticks; + } ftab[] = { + { 55, 132, 7, }, /* 7.86 MPix/s */ + { 110, 110, 12, }, /* 9.16 MPix/s */ + { 110, 132, 10, }, /* 11 Mpix/s */ + { 120, 120, 10, }, /* 12 Mpix/s */ + { 133, 133, 10, }, /* 13.3 Mpix/s */ + }; + + l4_rate = rfbi.l4_khz / 1000; + dss1_rate = clk_get_rate(rfbi.dss1_fck) / 1000000; + + for (i = 0; i < ARRAY_SIZE(ftab); i++) { + /* Use a window instead of an exact match, to account + * for different DPLL multiplier / divider pairs. + */ + if (abs(ftab[i].l4_clk - l4_rate) < 3 && + abs(ftab[i].dss1_clk - dss1_rate) < 3) { + min_l4_ticks = ftab[i].min_l4_ticks; + break; + } + } + if (i == ARRAY_SIZE(ftab)) { + /* Can't be sure, return anyway the maximum not + * rate-limited. This might cause a problem only for the + * tearing synchronisation. + */ + dev_err(rfbi.fbdev->dev, + "can't determine maximum RFBI transfer rate\n"); + return rfbi.l4_khz * 1000; + } + return rfbi.l4_khz * 1000 / min_l4_ticks; +} +#else +static int rfbi_get_max_tx_rate(void) +{ + return rfbi.l4_khz * 1000; +} +#endif + + +static int rfbi_convert_timings(struct extif_timings *t) +{ + u32 l; + int reon, reoff, weon, weoff, cson, csoff, cs_pulse; + int actim, recyc, wecyc; + int div = t->clk_div; + + if (div <= 0 || div > 2) + return -1; + + /* Make sure that after conversion it still holds that: + * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff, + * csoff > cson, csoff >= max(weoff, reoff), actim > reon + */ + weon = ps_to_rfbi_ticks(t->we_on_time, div); + weoff = ps_to_rfbi_ticks(t->we_off_time, div); + if (weoff <= weon) + weoff = weon + 1; + if (weon > 0x0f) + return -1; + if (weoff > 0x3f) + return -1; + + reon = ps_to_rfbi_ticks(t->re_on_time, div); + reoff = ps_to_rfbi_ticks(t->re_off_time, div); + if (reoff <= reon) + reoff = reon + 1; + if (reon > 0x0f) + return -1; + if (reoff > 0x3f) + return -1; + + cson = ps_to_rfbi_ticks(t->cs_on_time, div); + csoff = ps_to_rfbi_ticks(t->cs_off_time, div); + if (csoff <= cson) + csoff = cson + 1; + if (csoff < max(weoff, reoff)) + csoff = max(weoff, reoff); + if (cson > 0x0f) + return -1; + if (csoff > 0x3f) + return -1; + + l = cson; + l |= csoff << 4; + l |= weon << 10; + l |= weoff << 14; + l |= reon << 20; + l |= reoff << 24; + + t->tim[0] = l; + + actim = ps_to_rfbi_ticks(t->access_time, div); + if (actim <= reon) + actim = reon + 1; + if (actim > 0x3f) + return -1; + + wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div); + if (wecyc < weoff) + wecyc = weoff; + if (wecyc > 0x3f) + return -1; + + recyc = ps_to_rfbi_ticks(t->re_cycle_time, div); + if (recyc < reoff) + recyc = reoff; + if (recyc > 0x3f) + return -1; + + cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div); + if (cs_pulse > 0x3f) + return -1; + + l = wecyc; + l |= recyc << 6; + l |= cs_pulse << 12; + l |= actim << 22; + + t->tim[1] = l; + + t->tim[2] = div - 1; + + t->converted = 1; + + return 0; +} + +static int rfbi_setup_tearsync(unsigned pin_cnt, + unsigned hs_pulse_time, unsigned vs_pulse_time, + int hs_pol_inv, int vs_pol_inv, int extif_div) +{ + int hs, vs; + int min; + u32 l; + + if (pin_cnt != 1 && pin_cnt != 2) + return -EINVAL; + + hs = ps_to_rfbi_ticks(hs_pulse_time, 1); + vs = ps_to_rfbi_ticks(vs_pulse_time, 1); + if (hs < 2) + return -EDOM; + if (pin_cnt == 2) + min = 2; + else + min = 4; + if (vs < min) + return -EDOM; + if (vs == hs) + return -EINVAL; + rfbi.tearsync_pin_cnt = pin_cnt; + dev_dbg(rfbi.fbdev->dev, + "setup_tearsync: pins %d hs %d vs %d hs_inv %d vs_inv %d\n", + pin_cnt, hs, vs, hs_pol_inv, vs_pol_inv); + + rfbi_enable_clocks(1); + rfbi_write_reg(RFBI_HSYNC_WIDTH, hs); + rfbi_write_reg(RFBI_VSYNC_WIDTH, vs); + + l = rfbi_read_reg(RFBI_CONFIG0); + if (hs_pol_inv) + l &= ~(1 << 21); + else + l |= 1 << 21; + if (vs_pol_inv) + l &= ~(1 << 20); + else + l |= 1 << 20; + rfbi_enable_clocks(0); + + return 0; +} + +static int rfbi_enable_tearsync(int enable, unsigned line) +{ + u32 l; + + dev_dbg(rfbi.fbdev->dev, "tearsync %d line %d mode %d\n", + enable, line, rfbi.tearsync_mode); + if (line > (1 << 11) - 1) + return -EINVAL; + + rfbi_enable_clocks(1); + l = rfbi_read_reg(RFBI_CONFIG0); + l &= ~(0x3 << 2); + if (enable) { + rfbi.tearsync_mode = rfbi.tearsync_pin_cnt; + l |= rfbi.tearsync_mode << 2; + } else + rfbi.tearsync_mode = 0; + rfbi_write_reg(RFBI_CONFIG0, l); + rfbi_write_reg(RFBI_LINE_NUMBER, line); + rfbi_enable_clocks(0); + + return 0; +} + +static void rfbi_write_command(const void *buf, unsigned int len) +{ + rfbi_enable_clocks(1); + if (rfbi.bits_per_cycle == 16) { + const u16 *w = buf; + BUG_ON(len & 1); + for (; len; len -= 2) + rfbi_write_reg(RFBI_CMD, *w++); + } else { + const u8 *b = buf; + BUG_ON(rfbi.bits_per_cycle != 8); + for (; len; len--) + rfbi_write_reg(RFBI_CMD, *b++); + } + rfbi_enable_clocks(0); +} + +static void rfbi_read_data(void *buf, unsigned int len) +{ + rfbi_enable_clocks(1); + if (rfbi.bits_per_cycle == 16) { + u16 *w = buf; + BUG_ON(len & ~1); + for (; len; len -= 2) { + rfbi_write_reg(RFBI_READ, 0); + *w++ = rfbi_read_reg(RFBI_READ); + } + } else { + u8 *b = buf; + BUG_ON(rfbi.bits_per_cycle != 8); + for (; len; len--) { + rfbi_write_reg(RFBI_READ, 0); + *b++ = rfbi_read_reg(RFBI_READ); + } + } + rfbi_enable_clocks(0); +} + +static void rfbi_write_data(const void *buf, unsigned int len) +{ + rfbi_enable_clocks(1); + if (rfbi.bits_per_cycle == 16) { + const u16 *w = buf; + BUG_ON(len & 1); + for (; len; len -= 2) + rfbi_write_reg(RFBI_PARAM, *w++); + } else { + const u8 *b = buf; + BUG_ON(rfbi.bits_per_cycle != 8); + for (; len; len--) + rfbi_write_reg(RFBI_PARAM, *b++); + } + rfbi_enable_clocks(0); +} + +static void rfbi_transfer_area(int width, int height, + void (callback)(void * data), void *data) +{ + u32 w; + + BUG_ON(callback == NULL); + + rfbi_enable_clocks(1); + omap_dispc_set_lcd_size(width, height); + + rfbi.lcdc_callback = callback; + rfbi.lcdc_callback_data = data; + + rfbi_write_reg(RFBI_PIXEL_CNT, width * height); + + w = rfbi_read_reg(RFBI_CONTROL); + w |= 1; /* enable */ + if (!rfbi.tearsync_mode) + w |= 1 << 4; /* internal trigger, reset by HW */ + rfbi_write_reg(RFBI_CONTROL, w); + + omap_dispc_enable_lcd_out(1); +} + +static inline void _stop_transfer(void) +{ + u32 w; + + w = rfbi_read_reg(RFBI_CONTROL); + rfbi_write_reg(RFBI_CONTROL, w & ~(1 << 0)); + rfbi_enable_clocks(0); +} + +static void rfbi_dma_callback(void *data) +{ + _stop_transfer(); + rfbi.lcdc_callback(rfbi.lcdc_callback_data); +} + +static void rfbi_set_bits_per_cycle(int bpc) +{ + u32 l; + + rfbi_enable_clocks(1); + l = rfbi_read_reg(RFBI_CONFIG0); + l &= ~(0x03 << 0); + + switch (bpc) { + case 8: + break; + case 16: + l |= 3; + break; + default: + BUG(); + } + rfbi_write_reg(RFBI_CONFIG0, l); + rfbi.bits_per_cycle = bpc; + rfbi_enable_clocks(0); +} + +static int rfbi_init(struct omapfb_device *fbdev) +{ + u32 l; + int r; + + rfbi.fbdev = fbdev; + rfbi.base = io_p2v(RFBI_BASE); + + if ((r = rfbi_get_clocks()) < 0) + return r; + rfbi_enable_clocks(1); + + rfbi.l4_khz = clk_get_rate(rfbi.dss_ick) / 1000; + + /* Reset */ + rfbi_write_reg(RFBI_SYSCONFIG, 1 << 1); + while (!(rfbi_read_reg(RFBI_SYSSTATUS) & (1 << 0))); + + l = rfbi_read_reg(RFBI_SYSCONFIG); + /* Enable autoidle and smart-idle */ + l |= (1 << 0) | (2 << 3); + rfbi_write_reg(RFBI_SYSCONFIG, l); + + /* 16-bit interface, ITE trigger mode, 16-bit data */ + l = (0x03 << 0) | (0x00 << 2) | (0x01 << 5) | (0x02 << 7); + l |= (0 << 9) | (1 << 20) | (1 << 21); + rfbi_write_reg(RFBI_CONFIG0, l); + + rfbi_write_reg(RFBI_DATA_CYCLE1_0, 0x00000010); + + l = rfbi_read_reg(RFBI_CONTROL); + /* Select CS0, clear bypass mode */ + l = (0x01 << 2); + rfbi_write_reg(RFBI_CONTROL, l); + + if ((r = omap_dispc_request_irq(rfbi_dma_callback, NULL)) < 0) { + dev_err(fbdev->dev, "can't get DISPC irq\n"); + rfbi_enable_clocks(0); + return r; + } + + l = rfbi_read_reg(RFBI_REVISION); + pr_info("omapfb: RFBI version %d.%d initialized\n", + (l >> 4) & 0x0f, l & 0x0f); + + rfbi_enable_clocks(0); + + return 0; +} + +static void rfbi_cleanup(void) +{ + omap_dispc_free_irq(); + rfbi_put_clocks(); +} + +const struct lcd_ctrl_extif omap2_ext_if = { + .init = rfbi_init, + .cleanup = rfbi_cleanup, + .get_clk_info = rfbi_get_clk_info, + .get_max_tx_rate = rfbi_get_max_tx_rate, + .set_bits_per_cycle = rfbi_set_bits_per_cycle, + .convert_timings = rfbi_convert_timings, + .set_timings = rfbi_set_timings, + .write_command = rfbi_write_command, + .read_data = rfbi_read_data, + .write_data = rfbi_write_data, + .transfer_area = rfbi_transfer_area, + .setup_tearsync = rfbi_setup_tearsync, + .enable_tearsync = rfbi_enable_tearsync, + + .max_transmit_size = (u32) ~0, +}; + diff --git a/drivers/video/omap/sossi.c b/drivers/video/omap/sossi.c new file mode 100644 index 000000000000..81dbcf53cf0e --- /dev/null +++ b/drivers/video/omap/sossi.c @@ -0,0 +1,686 @@ +/* + * OMAP1 Special OptimiSed Screen Interface support + * + * Copyright (C) 2004-2005 Nokia Corporation + * Author: Juha Yrjölä <juha.yrjola@nokia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/clk.h> +#include <linux/irq.h> +#include <linux/io.h> + +#include <asm/arch/dma.h> +#include <asm/arch/omapfb.h> + +#include "lcdc.h" + +#define MODULE_NAME "omapfb-sossi" + +#define OMAP_SOSSI_BASE 0xfffbac00 +#define SOSSI_ID_REG 0x00 +#define SOSSI_INIT1_REG 0x04 +#define SOSSI_INIT2_REG 0x08 +#define SOSSI_INIT3_REG 0x0c +#define SOSSI_FIFO_REG 0x10 +#define SOSSI_REOTABLE_REG 0x14 +#define SOSSI_TEARING_REG 0x18 +#define SOSSI_INIT1B_REG 0x1c +#define SOSSI_FIFOB_REG 0x20 + +#define DMA_GSCR 0xfffedc04 +#define DMA_LCD_CCR 0xfffee3c2 +#define DMA_LCD_CTRL 0xfffee3c4 +#define DMA_LCD_LCH_CTRL 0xfffee3ea + +#define CONF_SOSSI_RESET_R (1 << 23) + +#define RD_ACCESS 0 +#define WR_ACCESS 1 + +#define SOSSI_MAX_XMIT_BYTES (512 * 1024) + +static struct { + void __iomem *base; + struct clk *fck; + unsigned long fck_hz; + spinlock_t lock; + int bus_pick_count; + int bus_pick_width; + int tearsync_mode; + int tearsync_line; + void (*lcdc_callback)(void *data); + void *lcdc_callback_data; + int vsync_dma_pending; + /* timing for read and write access */ + int clk_div; + u8 clk_tw0[2]; + u8 clk_tw1[2]; + /* + * if last_access is the same as current we don't have to change + * the timings + */ + int last_access; + + struct omapfb_device *fbdev; +} sossi; + +static inline u32 sossi_read_reg(int reg) +{ + return readl(sossi.base + reg); +} + +static inline u16 sossi_read_reg16(int reg) +{ + return readw(sossi.base + reg); +} + +static inline u8 sossi_read_reg8(int reg) +{ + return readb(sossi.base + reg); +} + +static inline void sossi_write_reg(int reg, u32 value) +{ + writel(value, sossi.base + reg); +} + +static inline void sossi_write_reg16(int reg, u16 value) +{ + writew(value, sossi.base + reg); +} + +static inline void sossi_write_reg8(int reg, u8 value) +{ + writeb(value, sossi.base + reg); +} + +static void sossi_set_bits(int reg, u32 bits) +{ + sossi_write_reg(reg, sossi_read_reg(reg) | bits); +} + +static void sossi_clear_bits(int reg, u32 bits) +{ + sossi_write_reg(reg, sossi_read_reg(reg) & ~bits); +} + +#define HZ_TO_PS(x) (1000000000 / (x / 1000)) + +static u32 ps_to_sossi_ticks(u32 ps, int div) +{ + u32 clk_period = HZ_TO_PS(sossi.fck_hz) * div; + return (clk_period + ps - 1) / clk_period; +} + +static int calc_rd_timings(struct extif_timings *t) +{ + u32 tw0, tw1; + int reon, reoff, recyc, actim; + int div = t->clk_div; + + /* + * Make sure that after conversion it still holds that: + * reoff > reon, recyc >= reoff, actim > reon + */ + reon = ps_to_sossi_ticks(t->re_on_time, div); + /* reon will be exactly one sossi tick */ + if (reon > 1) + return -1; + + reoff = ps_to_sossi_ticks(t->re_off_time, div); + + if (reoff <= reon) + reoff = reon + 1; + + tw0 = reoff - reon; + if (tw0 > 0x10) + return -1; + + recyc = ps_to_sossi_ticks(t->re_cycle_time, div); + if (recyc <= reoff) + recyc = reoff + 1; + + tw1 = recyc - tw0; + /* values less then 3 result in the SOSSI block resetting itself */ + if (tw1 < 3) + tw1 = 3; + if (tw1 > 0x40) + return -1; + + actim = ps_to_sossi_ticks(t->access_time, div); + if (actim < reoff) + actim++; + /* + * access time (data hold time) will be exactly one sossi + * tick + */ + if (actim - reoff > 1) + return -1; + + t->tim[0] = tw0 - 1; + t->tim[1] = tw1 - 1; + + return 0; +} + +static int calc_wr_timings(struct extif_timings *t) +{ + u32 tw0, tw1; + int weon, weoff, wecyc; + int div = t->clk_div; + + /* + * Make sure that after conversion it still holds that: + * weoff > weon, wecyc >= weoff + */ + weon = ps_to_sossi_ticks(t->we_on_time, div); + /* weon will be exactly one sossi tick */ + if (weon > 1) + return -1; + + weoff = ps_to_sossi_ticks(t->we_off_time, div); + if (weoff <= weon) + weoff = weon + 1; + tw0 = weoff - weon; + if (tw0 > 0x10) + return -1; + + wecyc = ps_to_sossi_ticks(t->we_cycle_time, div); + if (wecyc <= weoff) + wecyc = weoff + 1; + + tw1 = wecyc - tw0; + /* values less then 3 result in the SOSSI block resetting itself */ + if (tw1 < 3) + tw1 = 3; + if (tw1 > 0x40) + return -1; + + t->tim[2] = tw0 - 1; + t->tim[3] = tw1 - 1; + + return 0; +} + +static void _set_timing(int div, int tw0, int tw1) +{ + u32 l; + +#ifdef VERBOSE + dev_dbg(sossi.fbdev->dev, "Using TW0 = %d, TW1 = %d, div = %d\n", + tw0 + 1, tw1 + 1, div); +#endif + + clk_set_rate(sossi.fck, sossi.fck_hz / div); + clk_enable(sossi.fck); + l = sossi_read_reg(SOSSI_INIT1_REG); + l &= ~((0x0f << 20) | (0x3f << 24)); + l |= (tw0 << 20) | (tw1 << 24); + sossi_write_reg(SOSSI_INIT1_REG, l); + clk_disable(sossi.fck); +} + +static void _set_bits_per_cycle(int bus_pick_count, int bus_pick_width) +{ + u32 l; + + l = sossi_read_reg(SOSSI_INIT3_REG); + l &= ~0x3ff; + l |= ((bus_pick_count - 1) << 5) | ((bus_pick_width - 1) & 0x1f); + sossi_write_reg(SOSSI_INIT3_REG, l); +} + +static void _set_tearsync_mode(int mode, unsigned line) +{ + u32 l; + + l = sossi_read_reg(SOSSI_TEARING_REG); + l &= ~(((1 << 11) - 1) << 15); + l |= line << 15; + l &= ~(0x3 << 26); + l |= mode << 26; + sossi_write_reg(SOSSI_TEARING_REG, l); + if (mode) + sossi_set_bits(SOSSI_INIT2_REG, 1 << 6); /* TE logic */ + else + sossi_clear_bits(SOSSI_INIT2_REG, 1 << 6); +} + +static inline void set_timing(int access) +{ + if (access != sossi.last_access) { + sossi.last_access = access; + _set_timing(sossi.clk_div, + sossi.clk_tw0[access], sossi.clk_tw1[access]); + } +} + +static void sossi_start_transfer(void) +{ + /* WE */ + sossi_clear_bits(SOSSI_INIT2_REG, 1 << 4); + /* CS active low */ + sossi_clear_bits(SOSSI_INIT1_REG, 1 << 30); +} + +static void sossi_stop_transfer(void) +{ + /* WE */ + sossi_set_bits(SOSSI_INIT2_REG, 1 << 4); + /* CS active low */ + sossi_set_bits(SOSSI_INIT1_REG, 1 << 30); +} + +static void wait_end_of_write(void) +{ + /* Before reading we must check if some writings are going on */ + while (!(sossi_read_reg(SOSSI_INIT2_REG) & (1 << 3))); +} + +static void send_data(const void *data, unsigned int len) +{ + while (len >= 4) { + sossi_write_reg(SOSSI_FIFO_REG, *(const u32 *) data); + len -= 4; + data += 4; + } + while (len >= 2) { + sossi_write_reg16(SOSSI_FIFO_REG, *(const u16 *) data); + len -= 2; + data += 2; + } + while (len) { + sossi_write_reg8(SOSSI_FIFO_REG, *(const u8 *) data); + len--; + data++; + } +} + +static void set_cycles(unsigned int len) +{ + unsigned long nr_cycles = len / (sossi.bus_pick_width / 8); + + BUG_ON((nr_cycles - 1) & ~0x3ffff); + + sossi_clear_bits(SOSSI_INIT1_REG, 0x3ffff); + sossi_set_bits(SOSSI_INIT1_REG, (nr_cycles - 1) & 0x3ffff); +} + +static int sossi_convert_timings(struct extif_timings *t) +{ + int r = 0; + int div = t->clk_div; + + t->converted = 0; + + if (div <= 0 || div > 8) + return -1; + + /* no CS on SOSSI, so ignore cson, csoff, cs_pulsewidth */ + if ((r = calc_rd_timings(t)) < 0) + return r; + + if ((r = calc_wr_timings(t)) < 0) + return r; + + t->tim[4] = div; + + t->converted = 1; + + return 0; +} + +static void sossi_set_timings(const struct extif_timings *t) +{ + BUG_ON(!t->converted); + + sossi.clk_tw0[RD_ACCESS] = t->tim[0]; + sossi.clk_tw1[RD_ACCESS] = t->tim[1]; + + sossi.clk_tw0[WR_ACCESS] = t->tim[2]; + sossi.clk_tw1[WR_ACCESS] = t->tim[3]; + + sossi.clk_div = t->tim[4]; +} + +static void sossi_get_clk_info(u32 *clk_period, u32 *max_clk_div) +{ + *clk_period = HZ_TO_PS(sossi.fck_hz); + *max_clk_div = 8; +} + +static void sossi_set_bits_per_cycle(int bpc) +{ + int bus_pick_count, bus_pick_width; + + /* + * We set explicitly the the bus_pick_count as well, although + * with remapping/reordering disabled it will be calculated by HW + * as (32 / bus_pick_width). + */ + switch (bpc) { + case 8: + bus_pick_count = 4; + bus_pick_width = 8; + break; + case 16: + bus_pick_count = 2; + bus_pick_width = 16; + break; + default: + BUG(); + return; + } + sossi.bus_pick_width = bus_pick_width; + sossi.bus_pick_count = bus_pick_count; +} + +static int sossi_setup_tearsync(unsigned pin_cnt, + unsigned hs_pulse_time, unsigned vs_pulse_time, + int hs_pol_inv, int vs_pol_inv, int div) +{ + int hs, vs; + u32 l; + + if (pin_cnt != 1 || div < 1 || div > 8) + return -EINVAL; + + hs = ps_to_sossi_ticks(hs_pulse_time, div); + vs = ps_to_sossi_ticks(vs_pulse_time, div); + if (vs < 8 || vs <= hs || vs >= (1 << 12)) + return -EDOM; + vs /= 8; + vs--; + if (hs > 8) + hs = 8; + if (hs) + hs--; + + dev_dbg(sossi.fbdev->dev, + "setup_tearsync: hs %d vs %d hs_inv %d vs_inv %d\n", + hs, vs, hs_pol_inv, vs_pol_inv); + + clk_enable(sossi.fck); + l = sossi_read_reg(SOSSI_TEARING_REG); + l &= ~((1 << 15) - 1); + l |= vs << 3; + l |= hs; + if (hs_pol_inv) + l |= 1 << 29; + else + l &= ~(1 << 29); + if (vs_pol_inv) + l |= 1 << 28; + else + l &= ~(1 << 28); + sossi_write_reg(SOSSI_TEARING_REG, l); + clk_disable(sossi.fck); + + return 0; +} + +static int sossi_enable_tearsync(int enable, unsigned line) +{ + int mode; + + dev_dbg(sossi.fbdev->dev, "tearsync %d line %d\n", enable, line); + if (line >= 1 << 11) + return -EINVAL; + if (enable) { + if (line) + mode = 2; /* HS or VS */ + else + mode = 3; /* VS only */ + } else + mode = 0; + sossi.tearsync_line = line; + sossi.tearsync_mode = mode; + + return 0; +} + +static void sossi_write_command(const void *data, unsigned int len) +{ + clk_enable(sossi.fck); + set_timing(WR_ACCESS); + _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width); + /* CMD#/DATA */ + sossi_clear_bits(SOSSI_INIT1_REG, 1 << 18); + set_cycles(len); + sossi_start_transfer(); + send_data(data, len); + sossi_stop_transfer(); + wait_end_of_write(); + clk_disable(sossi.fck); +} + +static void sossi_write_data(const void *data, unsigned int len) +{ + clk_enable(sossi.fck); + set_timing(WR_ACCESS); + _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width); + /* CMD#/DATA */ + sossi_set_bits(SOSSI_INIT1_REG, 1 << 18); + set_cycles(len); + sossi_start_transfer(); + send_data(data, len); + sossi_stop_transfer(); + wait_end_of_write(); + clk_disable(sossi.fck); +} + +static void sossi_transfer_area(int width, int height, + void (callback)(void *data), void *data) +{ + BUG_ON(callback == NULL); + + sossi.lcdc_callback = callback; + sossi.lcdc_callback_data = data; + + clk_enable(sossi.fck); + set_timing(WR_ACCESS); + _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width); + _set_tearsync_mode(sossi.tearsync_mode, sossi.tearsync_line); + /* CMD#/DATA */ + sossi_set_bits(SOSSI_INIT1_REG, 1 << 18); + set_cycles(width * height * sossi.bus_pick_width / 8); + + sossi_start_transfer(); + if (sossi.tearsync_mode) { + /* + * Wait for the sync signal and start the transfer only + * then. We can't seem to be able to use HW sync DMA for + * this since LCD DMA shows huge latencies, as if it + * would ignore some of the DMA requests from SoSSI. + */ + unsigned long flags; + + spin_lock_irqsave(&sossi.lock, flags); + sossi.vsync_dma_pending++; + spin_unlock_irqrestore(&sossi.lock, flags); + } else + /* Just start the transfer right away. */ + omap_enable_lcd_dma(); +} + +static void sossi_dma_callback(void *data) +{ + omap_stop_lcd_dma(); + sossi_stop_transfer(); + clk_disable(sossi.fck); + sossi.lcdc_callback(sossi.lcdc_callback_data); +} + +static void sossi_read_data(void *data, unsigned int len) +{ + clk_enable(sossi.fck); + set_timing(RD_ACCESS); + _set_bits_per_cycle(sossi.bus_pick_count, sossi.bus_pick_width); + /* CMD#/DATA */ + sossi_set_bits(SOSSI_INIT1_REG, 1 << 18); + set_cycles(len); + sossi_start_transfer(); + while (len >= 4) { + *(u32 *) data = sossi_read_reg(SOSSI_FIFO_REG); + len -= 4; + data += 4; + } + while (len >= 2) { + *(u16 *) data = sossi_read_reg16(SOSSI_FIFO_REG); + len -= 2; + data += 2; + } + while (len) { + *(u8 *) data = sossi_read_reg8(SOSSI_FIFO_REG); + len--; + data++; + } + sossi_stop_transfer(); + clk_disable(sossi.fck); +} + +static irqreturn_t sossi_match_irq(int irq, void *data) +{ + unsigned long flags; + + spin_lock_irqsave(&sossi.lock, flags); + if (sossi.vsync_dma_pending) { + sossi.vsync_dma_pending--; + omap_enable_lcd_dma(); + } + spin_unlock_irqrestore(&sossi.lock, flags); + return IRQ_HANDLED; +} + +static int sossi_init(struct omapfb_device *fbdev) +{ + u32 l, k; + struct clk *fck; + struct clk *dpll1out_ck; + int r; + + sossi.base = (void __iomem *)IO_ADDRESS(OMAP_SOSSI_BASE); + sossi.fbdev = fbdev; + spin_lock_init(&sossi.lock); + + dpll1out_ck = clk_get(fbdev->dev, "ck_dpll1out"); + if (IS_ERR(dpll1out_ck)) { + dev_err(fbdev->dev, "can't get DPLL1OUT clock\n"); + return PTR_ERR(dpll1out_ck); + } + /* + * We need the parent clock rate, which we might divide further + * depending on the timing requirements of the controller. See + * _set_timings. + */ + sossi.fck_hz = clk_get_rate(dpll1out_ck); + clk_put(dpll1out_ck); + + fck = clk_get(fbdev->dev, "ck_sossi"); + if (IS_ERR(fck)) { + dev_err(fbdev->dev, "can't get SoSSI functional clock\n"); + return PTR_ERR(fck); + } + sossi.fck = fck; + + /* Reset and enable the SoSSI module */ + l = omap_readl(MOD_CONF_CTRL_1); + l |= CONF_SOSSI_RESET_R; + omap_writel(l, MOD_CONF_CTRL_1); + l &= ~CONF_SOSSI_RESET_R; + omap_writel(l, MOD_CONF_CTRL_1); + + clk_enable(sossi.fck); + l = omap_readl(ARM_IDLECT2); + l &= ~(1 << 8); /* DMACK_REQ */ + omap_writel(l, ARM_IDLECT2); + + l = sossi_read_reg(SOSSI_INIT2_REG); + /* Enable and reset the SoSSI block */ + l |= (1 << 0) | (1 << 1); + sossi_write_reg(SOSSI_INIT2_REG, l); + /* Take SoSSI out of reset */ + l &= ~(1 << 1); + sossi_write_reg(SOSSI_INIT2_REG, l); + + sossi_write_reg(SOSSI_ID_REG, 0); + l = sossi_read_reg(SOSSI_ID_REG); + k = sossi_read_reg(SOSSI_ID_REG); + + if (l != 0x55555555 || k != 0xaaaaaaaa) { + dev_err(fbdev->dev, + "invalid SoSSI sync pattern: %08x, %08x\n", l, k); + r = -ENODEV; + goto err; + } + + if ((r = omap_lcdc_set_dma_callback(sossi_dma_callback, NULL)) < 0) { + dev_err(fbdev->dev, "can't get LCDC IRQ\n"); + r = -ENODEV; + goto err; + } + + l = sossi_read_reg(SOSSI_ID_REG); /* Component code */ + l = sossi_read_reg(SOSSI_ID_REG); + dev_info(fbdev->dev, "SoSSI version %d.%d initialized\n", + l >> 16, l & 0xffff); + + l = sossi_read_reg(SOSSI_INIT1_REG); + l |= (1 << 19); /* DMA_MODE */ + l &= ~(1 << 31); /* REORDERING */ + sossi_write_reg(SOSSI_INIT1_REG, l); + + if ((r = request_irq(INT_1610_SoSSI_MATCH, sossi_match_irq, + IRQT_FALLING, + "sossi_match", sossi.fbdev->dev)) < 0) { + dev_err(sossi.fbdev->dev, "can't get SoSSI match IRQ\n"); + goto err; + } + + clk_disable(sossi.fck); + return 0; + +err: + clk_disable(sossi.fck); + clk_put(sossi.fck); + return r; +} + +static void sossi_cleanup(void) +{ + omap_lcdc_free_dma_callback(); + clk_put(sossi.fck); +} + +struct lcd_ctrl_extif omap1_ext_if = { + .init = sossi_init, + .cleanup = sossi_cleanup, + .get_clk_info = sossi_get_clk_info, + .convert_timings = sossi_convert_timings, + .set_timings = sossi_set_timings, + .set_bits_per_cycle = sossi_set_bits_per_cycle, + .setup_tearsync = sossi_setup_tearsync, + .enable_tearsync = sossi_enable_tearsync, + .write_command = sossi_write_command, + .read_data = sossi_read_data, + .write_data = sossi_write_data, + .transfer_area = sossi_transfer_area, + + .max_transmit_size = SOSSI_MAX_XMIT_BYTES, +}; + diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c index e64f8b5d0056..8503e733a172 100644 --- a/drivers/video/platinumfb.c +++ b/drivers/video/platinumfb.c @@ -52,7 +52,7 @@ struct fb_info_platinum { struct { __u8 red, green, blue; } palette[256]; - u32 pseudo_palette[17]; + u32 pseudo_palette[16]; volatile struct cmap_regs __iomem *cmap_regs; unsigned long cmap_regs_phys; diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c index 0a04483aa3e0..10c0cc6e93fc 100644 --- a/drivers/video/pm2fb.c +++ b/drivers/video/pm2fb.c @@ -24,7 +24,7 @@ * License. See the file COPYING in the main directory of this archive for * more details. * - * + * */ #include <linux/module.h> @@ -58,7 +58,7 @@ #endif /* - * Driver data + * Driver data */ static char *mode __devinitdata = NULL; @@ -82,12 +82,12 @@ struct pm2fb_par { pm2type_t type; /* Board type */ unsigned char __iomem *v_regs;/* virtual address of p_regs */ - u32 memclock; /* memclock */ + u32 memclock; /* memclock */ u32 video; /* video flags before blanking */ u32 mem_config; /* MemConfig reg at probe */ u32 mem_control; /* MemControl reg at probe */ u32 boot_address; /* BootAddress reg at probe */ - u32 palette[16]; + u32 palette[16]; }; /* @@ -95,12 +95,12 @@ struct pm2fb_par * if we don't use modedb. */ static struct fb_fix_screeninfo pm2fb_fix __devinitdata = { - .id = "", + .id = "", .type = FB_TYPE_PACKED_PIXELS, .visual = FB_VISUAL_PSEUDOCOLOR, .xpanstep = 1, .ypanstep = 1, - .ywrapstep = 0, + .ywrapstep = 0, .accel = FB_ACCEL_3DLABS_PERMEDIA2, }; @@ -109,26 +109,26 @@ static struct fb_fix_screeninfo pm2fb_fix __devinitdata = { */ static struct fb_var_screeninfo pm2fb_var __devinitdata = { /* "640x480, 8 bpp @ 60 Hz */ - .xres = 640, - .yres = 480, - .xres_virtual = 640, - .yres_virtual = 480, - .bits_per_pixel =8, - .red = {0, 8, 0}, - .blue = {0, 8, 0}, - .green = {0, 8, 0}, - .activate = FB_ACTIVATE_NOW, - .height = -1, - .width = -1, - .accel_flags = 0, - .pixclock = 39721, - .left_margin = 40, - .right_margin = 24, - .upper_margin = 32, - .lower_margin = 11, - .hsync_len = 96, - .vsync_len = 2, - .vmode = FB_VMODE_NONINTERLACED + .xres = 640, + .yres = 480, + .xres_virtual = 640, + .yres_virtual = 480, + .bits_per_pixel = 8, + .red = {0, 8, 0}, + .blue = {0, 8, 0}, + .green = {0, 8, 0}, + .activate = FB_ACTIVATE_NOW, + .height = -1, + .width = -1, + .accel_flags = 0, + .pixclock = 39721, + .left_margin = 40, + .right_margin = 24, + .upper_margin = 32, + .lower_margin = 11, + .hsync_len = 96, + .vsync_len = 2, + .vmode = FB_VMODE_NONINTERLACED }; /* @@ -166,7 +166,7 @@ static inline u32 pm2_RDAC_RD(struct pm2fb_par* p, s32 idx) pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); index = PM2VR_RD_INDEXED_DATA; break; - } + } mb(); return pm2_RD(p, index); } @@ -182,7 +182,7 @@ static inline void pm2_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v) pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); index = PM2VR_RD_INDEXED_DATA; break; - } + } wmb(); pm2_WR(p, index, v); wmb(); @@ -197,7 +197,7 @@ static inline void pm2v_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v) } #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT -#define WAIT_FIFO(p,a) +#define WAIT_FIFO(p, a) #else static inline void WAIT_FIFO(struct pm2fb_par* p, u32 a) { @@ -209,7 +209,7 @@ static inline void WAIT_FIFO(struct pm2fb_par* p, u32 a) /* * partial products for the supported horizontal resolutions. */ -#define PACKPP(p0,p1,p2) (((p2) << 6) | ((p1) << 3) | (p0)) +#define PACKPP(p0, p1, p2) (((p2) << 6) | ((p1) << 3) | (p0)) static const struct { u16 width; u16 pp; @@ -357,7 +357,7 @@ static void reset_card(struct pm2fb_par* p) static void reset_config(struct pm2fb_par* p) { WAIT_FIFO(p, 52); - pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG)& + pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG) & ~(PM2F_VGA_ENABLE|PM2F_VGA_FIXED)); pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L)); pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L)); @@ -367,7 +367,7 @@ static void reset_config(struct pm2fb_par* p) pm2_WR(p, PM2R_RASTERIZER_MODE, 0); pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB); pm2_WR(p, PM2R_LB_READ_FORMAT, 0); - pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0); + pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0); pm2_WR(p, PM2R_LB_READ_MODE, 0); pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0); pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0); @@ -535,7 +535,7 @@ static void set_video(struct pm2fb_par* p, u32 video) { vsync = video; DPRINTK("video = 0x%x\n", video); - + /* * The hardware cursor needs +vsync to recognise vert retrace. * We may not be using the hardware cursor, but the X Glint @@ -574,9 +574,9 @@ static void set_video(struct pm2fb_par* p, u32 video) { */ /** - * pm2fb_check_var - Optional function. Validates a var passed in. - * @var: frame buffer variable screen structure - * @info: frame buffer structure that represents a single frame buffer + * pm2fb_check_var - Optional function. Validates a var passed in. + * @var: frame buffer variable screen structure + * @info: frame buffer structure that represents a single frame buffer * * Checks to see if the hardware supports the state requested by * var passed in. @@ -615,23 +615,23 @@ static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */ lpitch = var->xres * ((var->bits_per_pixel + 7)>>3); - + if (var->xres < 320 || var->xres > 1600) { DPRINTK("width not supported: %u\n", var->xres); return -EINVAL; } - + if (var->yres < 200 || var->yres > 1200) { DPRINTK("height not supported: %u\n", var->yres); return -EINVAL; } - + if (lpitch * var->yres_virtual > info->fix.smem_len) { DPRINTK("no memory for screen (%ux%ux%u)\n", var->xres, var->yres_virtual, var->bits_per_pixel); return -EINVAL; } - + if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) { DPRINTK("pixclock too high (%ldKHz)\n", PICOS2KHZ(var->pixclock)); return -EINVAL; @@ -672,17 +672,17 @@ static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) break; } var->height = var->width = -1; - + var->accel_flags = 0; /* Can't mmap if this is on */ - + DPRINTK("Checking graphics mode at %dx%d depth %d\n", var->xres, var->yres, var->bits_per_pixel); return 0; } /** - * pm2fb_set_par - Alters the hardware state. - * @info: frame buffer structure that represents a single frame buffer + * pm2fb_set_par - Alters the hardware state. + * @info: frame buffer structure that represents a single frame buffer * * Using the fb_var_screeninfo in fb_info we set the resolution of the * this particular framebuffer. @@ -709,7 +709,7 @@ static int pm2fb_set_par(struct fb_info *info) clear_palette(par); if ( par->memclock ) set_memclock(par, par->memclock); - + width = (info->var.xres_virtual + 7) & ~7; height = info->var.yres_virtual; depth = (info->var.bits_per_pixel + 7) & ~7; @@ -722,7 +722,7 @@ static int pm2fb_set_par(struct fb_info *info) DPRINTK("pixclock too high (%uKHz)\n", pixclock); return -EINVAL; } - + hsstart = to3264(info->var.right_margin, depth, data64); hsend = hsstart + to3264(info->var.hsync_len, depth, data64); hbend = hsend + to3264(info->var.left_margin, depth, data64); @@ -737,7 +737,7 @@ static int pm2fb_set_par(struct fb_info *info) base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1); if (data64) video |= PM2F_DATA_64_ENABLE; - + if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) { if (lowhsync) { DPRINTK("ignoring +hsync, using -hsync.\n"); @@ -778,9 +778,9 @@ static int pm2fb_set_par(struct fb_info *info) WAIT_FIFO(par, 1); pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); } - + set_aperture(par, depth); - + mb(); WAIT_FIFO(par, 19); pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL, @@ -847,22 +847,22 @@ static int pm2fb_set_par(struct fb_info *info) set_pixclock(par, pixclock); DPRINTK("Setting graphics mode at %dx%d depth %d\n", info->var.xres, info->var.yres, info->var.bits_per_pixel); - return 0; + return 0; } /** - * pm2fb_setcolreg - Sets a color register. - * @regno: boolean, 0 copy local, 1 get_user() function - * @red: frame buffer colormap structure - * @green: The green value which can be up to 16 bits wide + * pm2fb_setcolreg - Sets a color register. + * @regno: boolean, 0 copy local, 1 get_user() function + * @red: frame buffer colormap structure + * @green: The green value which can be up to 16 bits wide * @blue: The blue value which can be up to 16 bits wide. - * @transp: If supported the alpha value which can be up to 16 bits wide. - * @info: frame buffer info structure - * - * Set a single color register. The values supplied have a 16 bit - * magnitude which needs to be scaled in this function for the hardware. + * @transp: If supported the alpha value which can be up to 16 bits wide. + * @info: frame buffer info structure + * + * Set a single color register. The values supplied have a 16 bit + * magnitude which needs to be scaled in this function for the hardware. * Pretty much a direct lift from tdfxfb.c. - * + * * Returns negative errno on error, or zero on success. */ static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, @@ -906,7 +906,7 @@ static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, * (blue << blue.offset) | (transp << transp.offset) * RAMDAC does not exist */ -#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16) +#define CNVT_TOHW(val, width) ((((val) << (width)) + 0x7FFF -(val)) >> 16) switch (info->fix.visual) { case FB_VISUAL_TRUECOLOR: case FB_VISUAL_PSEUDOCOLOR: @@ -916,9 +916,9 @@ static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, transp = CNVT_TOHW(transp, info->var.transp.length); break; case FB_VISUAL_DIRECTCOLOR: - /* example here assumes 8 bit DAC. Might be different - * for your hardware */ - red = CNVT_TOHW(red, 8); + /* example here assumes 8 bit DAC. Might be different + * for your hardware */ + red = CNVT_TOHW(red, 8); green = CNVT_TOHW(green, 8); blue = CNVT_TOHW(blue, 8); /* hey, there is bug in transp handling... */ @@ -940,11 +940,11 @@ static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, switch (info->var.bits_per_pixel) { case 8: - break; - case 16: + break; + case 16: case 24: - case 32: - par->palette[regno] = v; + case 32: + par->palette[regno] = v; break; } return 0; @@ -956,15 +956,15 @@ static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, } /** - * pm2fb_pan_display - Pans the display. - * @var: frame buffer variable screen structure - * @info: frame buffer structure that represents a single frame buffer + * pm2fb_pan_display - Pans the display. + * @var: frame buffer variable screen structure + * @info: frame buffer structure that represents a single frame buffer * * Pan (or wrap, depending on the `vmode' field) the display using the - * `xoffset' and `yoffset' fields of the `var' structure. - * If the values don't fit, return -EINVAL. + * `xoffset' and `yoffset' fields of the `var' structure. + * If the values don't fit, return -EINVAL. * - * Returns negative errno on error, or zero on success. + * Returns negative errno on error, or zero on success. * */ static int pm2fb_pan_display(struct fb_var_screeninfo *var, @@ -980,24 +980,24 @@ static int pm2fb_pan_display(struct fb_var_screeninfo *var, depth = (depth > 32) ? 32 : depth; base = to3264(var->yoffset * xres + var->xoffset, depth, 1); WAIT_FIFO(p, 1); - pm2_WR(p, PM2R_SCREEN_BASE, base); + pm2_WR(p, PM2R_SCREEN_BASE, base); return 0; } /** - * pm2fb_blank - Blanks the display. - * @blank_mode: the blank mode we want. - * @info: frame buffer structure that represents a single frame buffer + * pm2fb_blank - Blanks the display. + * @blank_mode: the blank mode we want. + * @info: frame buffer structure that represents a single frame buffer * - * Blank the screen if blank_mode != 0, else unblank. Return 0 if - * blanking succeeded, != 0 if un-/blanking failed due to e.g. a - * video mode which doesn't support it. Implements VESA suspend - * and powerdown modes on hardware that supports disabling hsync/vsync: - * blank_mode == 2: suspend vsync - * blank_mode == 3: suspend hsync - * blank_mode == 4: powerdown + * Blank the screen if blank_mode != 0, else unblank. Return 0 if + * blanking succeeded, != 0 if un-/blanking failed due to e.g. a + * video mode which doesn't support it. Implements VESA suspend + * and powerdown modes on hardware that supports disabling hsync/vsync: + * blank_mode == 2: suspend vsync + * blank_mode == 3: suspend hsync + * blank_mode == 4: powerdown * - * Returns negative errno on error, or zero on success. + * Returns negative errno on error, or zero on success. * */ static int pm2fb_blank(int blank_mode, struct fb_info *info) @@ -1071,7 +1071,7 @@ static void pm2fb_block_op(struct fb_info* info, int copy, pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (y << 16) | x); pm2_WR(par, PM2R_RECTANGLE_SIZE, (h << 16) | w); wmb(); - pm2_WR(par, PM2R_RENDER,PM2F_RENDER_RECTANGLE | + pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE | (x<xsrc ? PM2F_INCREASE_X : 0) | (y<ysrc ? PM2F_INCREASE_Y : 0) | (copy ? 0 : PM2F_RENDER_FASTFILL)); @@ -1234,7 +1234,7 @@ static int __devinit pm2fb_probe(struct pci_dev *pdev, DPRINTK("Adjusting register base for big-endian.\n"); #endif DPRINTK("Register base at 0x%lx\n", pm2fb_fix.mmio_start); - + /* Registers - request region and map it. */ if ( !request_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len, "pm2fb regbase") ) { @@ -1317,17 +1317,17 @@ static int __devinit pm2fb_probe(struct pci_dev *pdev, } info->fbops = &pm2fb_ops; - info->fix = pm2fb_fix; + info->fix = pm2fb_fix; info->pseudo_palette = default_par->palette; info->flags = FBINFO_DEFAULT | - FBINFO_HWACCEL_YPAN | - FBINFO_HWACCEL_COPYAREA | - FBINFO_HWACCEL_FILLRECT; + FBINFO_HWACCEL_YPAN | + FBINFO_HWACCEL_COPYAREA | + FBINFO_HWACCEL_FILLRECT; if (!mode) mode = "640x480@60"; - - err = fb_find_mode(&info->var, info, mode, NULL, 0, NULL, 8); + + err = fb_find_mode(&info->var, info, mode, NULL, 0, NULL, 8); if (!err || err == 4) info->var = pm2fb_var; @@ -1348,8 +1348,8 @@ static int __devinit pm2fb_probe(struct pci_dev *pdev, return 0; err_exit_all: - fb_dealloc_cmap(&info->cmap); - err_exit_both: + fb_dealloc_cmap(&info->cmap); + err_exit_both: iounmap(info->screen_base); release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len); err_exit_mmio: @@ -1374,7 +1374,7 @@ static void __devexit pm2fb_remove(struct pci_dev *pdev) struct pm2fb_par *par = info->par; unregister_framebuffer(info); - + iounmap(info->screen_base); release_mem_region(fix->smem_start, fix->smem_len); iounmap(par->v_regs); @@ -1402,9 +1402,9 @@ static struct pci_device_id pm2fb_id_table[] = { static struct pci_driver pm2fb_driver = { .name = "pm2fb", - .id_table = pm2fb_id_table, - .probe = pm2fb_probe, - .remove = __devexit_p(pm2fb_remove), + .id_table = pm2fb_id_table, + .probe = pm2fb_probe, + .remove = __devexit_p(pm2fb_remove), }; MODULE_DEVICE_TABLE(pci, pm2fb_id_table); @@ -1423,7 +1423,7 @@ static int __init pm2fb_setup(char *options) if (!options || !*options) return 0; - while ((this_opt = strsep(&options, ",")) != NULL) { + while ((this_opt = strsep(&options, ",")) != NULL) { if (!*this_opt) continue; if(!strcmp(this_opt, "lowhsync")) { diff --git a/drivers/video/pm3fb.c b/drivers/video/pm3fb.c index b52e883f0a52..5b3f54c0918e 100644 --- a/drivers/video/pm3fb.c +++ b/drivers/video/pm3fb.c @@ -77,7 +77,7 @@ static struct fb_fix_screeninfo pm3fb_fix __devinitdata = { .xpanstep = 1, .ypanstep = 1, .ywrapstep = 0, - .accel = FB_ACCEL_NONE, + .accel = FB_ACCEL_3DLABS_PERMEDIA3, }; /* @@ -185,6 +185,238 @@ static inline int pm3fb_shift_bpp(unsigned bpp, int v) return 0; } +/* acceleration */ +static int pm3fb_sync(struct fb_info *info) +{ + struct pm3_par *par = info->par; + + PM3_WAIT(par, 2); + PM3_WRITE_REG(par, PM3FilterMode, PM3FilterModeSync); + PM3_WRITE_REG(par, PM3Sync, 0); + mb(); + do { + while ((PM3_READ_REG(par, PM3OutFIFOWords)) == 0); + rmb(); + } while ((PM3_READ_REG(par, PM3OutputFifo)) != PM3Sync_Tag); + + return 0; +} + +static void pm3fb_init_engine(struct fb_info *info) +{ + struct pm3_par *par = info->par; + const u32 width = (info->var.xres_virtual + 7) & ~7; + + PM3_WAIT(par, 50); + PM3_WRITE_REG(par, PM3FilterMode, PM3FilterModeSync); + PM3_WRITE_REG(par, PM3StatisticMode, 0x0); + PM3_WRITE_REG(par, PM3DeltaMode, 0x0); + PM3_WRITE_REG(par, PM3RasterizerMode, 0x0); + PM3_WRITE_REG(par, PM3ScissorMode, 0x0); + PM3_WRITE_REG(par, PM3LineStippleMode, 0x0); + PM3_WRITE_REG(par, PM3AreaStippleMode, 0x0); + PM3_WRITE_REG(par, PM3GIDMode, 0x0); + PM3_WRITE_REG(par, PM3DepthMode, 0x0); + PM3_WRITE_REG(par, PM3StencilMode, 0x0); + PM3_WRITE_REG(par, PM3StencilData, 0x0); + PM3_WRITE_REG(par, PM3ColorDDAMode, 0x0); + PM3_WRITE_REG(par, PM3TextureCoordMode, 0x0); + PM3_WRITE_REG(par, PM3TextureIndexMode0, 0x0); + PM3_WRITE_REG(par, PM3TextureIndexMode1, 0x0); + PM3_WRITE_REG(par, PM3TextureReadMode, 0x0); + PM3_WRITE_REG(par, PM3LUTMode, 0x0); + PM3_WRITE_REG(par, PM3TextureFilterMode, 0x0); + PM3_WRITE_REG(par, PM3TextureCompositeMode, 0x0); + PM3_WRITE_REG(par, PM3TextureApplicationMode, 0x0); + PM3_WRITE_REG(par, PM3TextureCompositeColorMode1, 0x0); + PM3_WRITE_REG(par, PM3TextureCompositeAlphaMode1, 0x0); + PM3_WRITE_REG(par, PM3TextureCompositeColorMode0, 0x0); + PM3_WRITE_REG(par, PM3TextureCompositeAlphaMode0, 0x0); + PM3_WRITE_REG(par, PM3FogMode, 0x0); + PM3_WRITE_REG(par, PM3ChromaTestMode, 0x0); + PM3_WRITE_REG(par, PM3AlphaTestMode, 0x0); + PM3_WRITE_REG(par, PM3AntialiasMode, 0x0); + PM3_WRITE_REG(par, PM3YUVMode, 0x0); + PM3_WRITE_REG(par, PM3AlphaBlendColorMode, 0x0); + PM3_WRITE_REG(par, PM3AlphaBlendAlphaMode, 0x0); + PM3_WRITE_REG(par, PM3DitherMode, 0x0); + PM3_WRITE_REG(par, PM3LogicalOpMode, 0x0); + PM3_WRITE_REG(par, PM3RouterMode, 0x0); + PM3_WRITE_REG(par, PM3Window, 0x0); + + PM3_WRITE_REG(par, PM3Config2D, 0x0); + + PM3_WRITE_REG(par, PM3SpanColorMask, 0xffffffff); + + PM3_WRITE_REG(par, PM3XBias, 0x0); + PM3_WRITE_REG(par, PM3YBias, 0x0); + PM3_WRITE_REG(par, PM3DeltaControl, 0x0); + + PM3_WRITE_REG(par, PM3BitMaskPattern, 0xffffffff); + + PM3_WRITE_REG(par, PM3FBDestReadEnables, + PM3FBDestReadEnables_E(0xff) | + PM3FBDestReadEnables_R(0xff) | + PM3FBDestReadEnables_ReferenceAlpha(0xff)); + PM3_WRITE_REG(par, PM3FBDestReadBufferAddr0, 0x0); + PM3_WRITE_REG(par, PM3FBDestReadBufferOffset0, 0x0); + PM3_WRITE_REG(par, PM3FBDestReadBufferWidth0, + PM3FBDestReadBufferWidth_Width(width)); + + PM3_WRITE_REG(par, PM3FBDestReadMode, + PM3FBDestReadMode_ReadEnable | + PM3FBDestReadMode_Enable0); + PM3_WRITE_REG(par, PM3FBSourceReadBufferAddr, 0x0); + PM3_WRITE_REG(par, PM3FBSourceReadBufferOffset, 0x0); + PM3_WRITE_REG(par, PM3FBSourceReadBufferWidth, + PM3FBSourceReadBufferWidth_Width(width)); + PM3_WRITE_REG(par, PM3FBSourceReadMode, + PM3FBSourceReadMode_Blocking | + PM3FBSourceReadMode_ReadEnable); + + PM3_WAIT(par, 2); + { + unsigned long rm = 1; + switch (info->var.bits_per_pixel) { + case 8: + PM3_WRITE_REG(par, PM3PixelSize, + PM3PixelSize_GLOBAL_8BIT); + break; + case 16: + PM3_WRITE_REG(par, PM3PixelSize, + PM3PixelSize_GLOBAL_16BIT); + break; + case 32: + PM3_WRITE_REG(par, PM3PixelSize, + PM3PixelSize_GLOBAL_32BIT); + break; + default: + DPRINTK(1, "Unsupported depth %d\n", + info->var.bits_per_pixel); + break; + } + PM3_WRITE_REG(par, PM3RasterizerMode, rm); + } + + PM3_WAIT(par, 20); + PM3_WRITE_REG(par, PM3FBSoftwareWriteMask, 0xffffffff); + PM3_WRITE_REG(par, PM3FBHardwareWriteMask, 0xffffffff); + PM3_WRITE_REG(par, PM3FBWriteMode, + PM3FBWriteMode_WriteEnable | + PM3FBWriteMode_OpaqueSpan | + PM3FBWriteMode_Enable0); + PM3_WRITE_REG(par, PM3FBWriteBufferAddr0, 0x0); + PM3_WRITE_REG(par, PM3FBWriteBufferOffset0, 0x0); + PM3_WRITE_REG(par, PM3FBWriteBufferWidth0, + PM3FBWriteBufferWidth_Width(width)); + + PM3_WRITE_REG(par, PM3SizeOfFramebuffer, 0x0); + { + /* size in lines of FB */ + unsigned long sofb = info->screen_size / + info->fix.line_length; + if (sofb > 4095) + PM3_WRITE_REG(par, PM3SizeOfFramebuffer, 4095); + else + PM3_WRITE_REG(par, PM3SizeOfFramebuffer, sofb); + + switch (info->var.bits_per_pixel) { + case 8: + PM3_WRITE_REG(par, PM3DitherMode, + (1 << 10) | (2 << 3)); + break; + case 16: + PM3_WRITE_REG(par, PM3DitherMode, + (1 << 10) | (1 << 3)); + break; + case 32: + PM3_WRITE_REG(par, PM3DitherMode, + (1 << 10) | (0 << 3)); + break; + default: + DPRINTK(1, "Unsupported depth %d\n", + info->current_par->depth); + break; + } + } + + PM3_WRITE_REG(par, PM3dXDom, 0x0); + PM3_WRITE_REG(par, PM3dXSub, 0x0); + PM3_WRITE_REG(par, PM3dY, (1 << 16)); + PM3_WRITE_REG(par, PM3StartXDom, 0x0); + PM3_WRITE_REG(par, PM3StartXSub, 0x0); + PM3_WRITE_REG(par, PM3StartY, 0x0); + PM3_WRITE_REG(par, PM3Count, 0x0); + +/* Disable LocalBuffer. better safe than sorry */ + PM3_WRITE_REG(par, PM3LBDestReadMode, 0x0); + PM3_WRITE_REG(par, PM3LBDestReadEnables, 0x0); + PM3_WRITE_REG(par, PM3LBSourceReadMode, 0x0); + PM3_WRITE_REG(par, PM3LBWriteMode, 0x0); + + pm3fb_sync(info); +} + +static void pm3fb_fillrect (struct fb_info *info, + const struct fb_fillrect *region) +{ + struct pm3_par *par = info->par; + struct fb_fillrect modded; + int vxres, vyres; + u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ? + ((u32*)info->pseudo_palette)[region->color] : region->color; + + if (info->state != FBINFO_STATE_RUNNING) + return; + if ((info->flags & FBINFO_HWACCEL_DISABLED) || + region->rop != ROP_COPY ) { + cfb_fillrect(info, region); + return; + } + + vxres = info->var.xres_virtual; + vyres = info->var.yres_virtual; + + memcpy(&modded, region, sizeof(struct fb_fillrect)); + + if(!modded.width || !modded.height || + modded.dx >= vxres || modded.dy >= vyres) + return; + + if(modded.dx + modded.width > vxres) + modded.width = vxres - modded.dx; + if(modded.dy + modded.height > vyres) + modded.height = vyres - modded.dy; + + if(info->var.bits_per_pixel == 8) + color |= color << 8; + if(info->var.bits_per_pixel <= 16) + color |= color << 16; + + PM3_WAIT(par, 4); + + PM3_WRITE_REG(par, PM3Config2D, + PM3Config2D_UseConstantSource | + PM3Config2D_ForegroundROPEnable | + (PM3Config2D_ForegroundROP(0x3)) | /* Ox3 is GXcopy */ + PM3Config2D_FBWriteEnable); + + PM3_WRITE_REG(par, PM3ForegroundColor, color); + + PM3_WRITE_REG(par, PM3RectanglePosition, + (PM3RectanglePosition_XOffset(modded.dx)) | + (PM3RectanglePosition_YOffset(modded.dy))); + + PM3_WRITE_REG(par, PM3Render2D, + PM3Render2D_XPositive | + PM3Render2D_YPositive | + PM3Render2D_Operation_Normal | + PM3Render2D_SpanOperation | + (PM3Render2D_Width(modded.width)) | + (PM3Render2D_Height(modded.height))); +} +/* end of acceleration functions */ + /* write the mode to registers */ static void pm3fb_write_mode(struct fb_info *info) { @@ -380,8 +612,6 @@ static void pm3fb_write_mode(struct fb_info *info) /* * hardware independent functions */ -int pm3fb_init(void); - static int pm3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { u32 lpitch; @@ -528,6 +758,7 @@ static int pm3fb_set_par(struct fb_info *info) pm3fb_clear_colormap(par, 0, 0, 0); PM3_WRITE_DAC_REG(par, PM3RD_CursorMode, PM3RD_CursorMode_CURSOR_DISABLE); + pm3fb_init_engine(info); pm3fb_write_mode(info); return 0; } @@ -675,10 +906,11 @@ static struct fb_ops pm3fb_ops = { .fb_set_par = pm3fb_set_par, .fb_setcolreg = pm3fb_setcolreg, .fb_pan_display = pm3fb_pan_display, - .fb_fillrect = cfb_fillrect, + .fb_fillrect = pm3fb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, .fb_blank = pm3fb_blank, + .fb_sync = pm3fb_sync, }; /* ------------------------------------------------------------------------- */ @@ -847,7 +1079,8 @@ static int __devinit pm3fb_probe(struct pci_dev *dev, info->fix = pm3fb_fix; info->pseudo_palette = par->palette; - info->flags = FBINFO_DEFAULT;/* | FBINFO_HWACCEL_YPAN;*/ + info->flags = FBINFO_DEFAULT | + FBINFO_HWACCEL_FILLRECT;/* | FBINFO_HWACCEL_YPAN;*/ /* * This should give a reasonable default video mode. The following is @@ -935,35 +1168,12 @@ static struct pci_driver pm3fb_driver = { MODULE_DEVICE_TABLE(pci, pm3fb_id_table); -#ifndef MODULE - /* - * Setup - */ - -/* - * Only necessary if your driver takes special options, - * otherwise we fall back on the generic fb_setup(). - */ -static int __init pm3fb_setup(char *options) +static int __init pm3fb_init(void) { - /* Parse user speficied options (`video=pm3fb:') */ - return 0; -} -#endif /* MODULE */ - -int __init pm3fb_init(void) -{ - /* - * For kernel boot options (in 'video=pm3fb:<options>' format) - */ #ifndef MODULE - char *option = NULL; - - if (fb_get_options("pm3fb", &option)) + if (fb_get_options("pm3fb", NULL)) return -ENODEV; - pm3fb_setup(option); #endif - return pci_register_driver(&pm3fb_driver); } diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c index 08b7ffbbbbd8..3972aa8cf859 100644 --- a/drivers/video/ps3fb.c +++ b/drivers/video/ps3fb.c @@ -812,6 +812,7 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd, static int ps3fbd(void *arg) { + set_freezable(); while (!kthread_should_stop()) { try_to_freeze(); set_current_state(TASK_INTERRUPTIBLE); diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c index 2ba959a83eb0..f9300266044d 100644 --- a/drivers/video/pvr2fb.c +++ b/drivers/video/pvr2fb.c @@ -333,24 +333,25 @@ static int pvr2fb_setcolreg(unsigned int regno, unsigned int red, ((blue & 0xf800) >> 11); pvr2fb_set_pal_entry(par, regno, tmp); - ((u16*)(info->pseudo_palette))[regno] = tmp; break; case 24: /* RGB 888 */ red >>= 8; green >>= 8; blue >>= 8; - ((u32*)(info->pseudo_palette))[regno] = (red << 16) | (green << 8) | blue; + tmp = (red << 16) | (green << 8) | blue; break; case 32: /* ARGB 8888 */ red >>= 8; green >>= 8; blue >>= 8; tmp = (transp << 24) | (red << 16) | (green << 8) | blue; pvr2fb_set_pal_entry(par, regno, tmp); - ((u32*)(info->pseudo_palette))[regno] = tmp; break; default: pr_debug("Invalid bit depth %d?!?\n", info->var.bits_per_pixel); return 1; } + if (regno < 16) + ((u32*)(info->pseudo_palette))[regno] = tmp; + return 0; } @@ -1081,13 +1082,12 @@ static int __init pvr2fb_init(void) #endif size = sizeof(struct fb_info) + sizeof(struct pvr2fb_par) + 16 * sizeof(u32); - fb_info = kmalloc(size, GFP_KERNEL); + fb_info = kzalloc(size, GFP_KERNEL); if (!fb_info) { printk(KERN_ERR "Failed to allocate memory for fb_info\n"); return -ENOMEM; } - memset(fb_info, 0, size); currentpar = (struct pvr2fb_par *)(fb_info + 1); diff --git a/drivers/video/q40fb.c b/drivers/video/q40fb.c index 48536c3e58a4..4beac1df617b 100644 --- a/drivers/video/q40fb.c +++ b/drivers/video/q40fb.c @@ -95,7 +95,7 @@ static int __init q40fb_probe(struct platform_device *dev) /* mapped in q40/config.c */ q40fb_fix.smem_start = Q40_PHYS_SCREEN_ADDR; - info = framebuffer_alloc(sizeof(u32) * 256, &dev->dev); + info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev); if (!info) return -ENOMEM; diff --git a/drivers/video/riva/riva_hw.c b/drivers/video/riva/riva_hw.c index 70bfd78eca81..13307703a9f0 100644 --- a/drivers/video/riva/riva_hw.c +++ b/drivers/video/riva/riva_hw.c @@ -1223,6 +1223,8 @@ static int CalcVClock } } } + + /* non-zero: M/N/P/clock values assigned. zero: error (not set) */ return (DeltaOld != 0xFFFFFFFF); } /* @@ -1240,7 +1242,10 @@ int CalcStateExt int dotClock ) { - int pixelDepth, VClk, m, n, p; + int pixelDepth; + int uninitialized_var(VClk),uninitialized_var(m), + uninitialized_var(n), uninitialized_var(p); + /* * Save mode parameters. */ diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c index 3d7507ad55f6..b855f4a34afe 100644 --- a/drivers/video/savage/savagefb_driver.c +++ b/drivers/video/savage/savagefb_driver.c @@ -2174,11 +2174,10 @@ static int __devinit savage_init_fb_info(struct fb_info *info, #if defined(CONFIG_FB_SAVAGE_ACCEL) /* FIFO size + padding for commands */ - info->pixmap.addr = kmalloc(8*1024, GFP_KERNEL); + info->pixmap.addr = kcalloc(8, 1024, GFP_KERNEL); err = -ENOMEM; if (info->pixmap.addr) { - memset(info->pixmap.addr, 0, 8*1024); info->pixmap.size = 8*1024; info->pixmap.scan_align = 4; info->pixmap.buf_align = 4; diff --git a/drivers/video/sgivwfb.c b/drivers/video/sgivwfb.c index ebb6756aea08..4fb16240c04d 100644 --- a/drivers/video/sgivwfb.c +++ b/drivers/video/sgivwfb.c @@ -752,7 +752,7 @@ static int __init sgivwfb_probe(struct platform_device *dev) struct fb_info *info; char *monitor; - info = framebuffer_alloc(sizeof(struct sgivw_par) + sizeof(u32) * 256, &dev->dev); + info = framebuffer_alloc(sizeof(struct sgivw_par) + sizeof(u32) * 16, &dev->dev); if (!info) return -ENOMEM; par = info->par; diff --git a/drivers/video/sis/sis.h b/drivers/video/sis/sis.h index d5e2d9c27847..d53bf6945f0c 100644 --- a/drivers/video/sis/sis.h +++ b/drivers/video/sis/sis.h @@ -479,7 +479,7 @@ struct sis_video_info { struct fb_var_screeninfo default_var; struct fb_fix_screeninfo sisfb_fix; - u32 pseudo_palette[17]; + u32 pseudo_palette[16]; struct sisfb_monitor { u16 hmin; diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c index 93d07ef85276..e8ccace01252 100644 --- a/drivers/video/sis/sis_main.c +++ b/drivers/video/sis/sis_main.c @@ -1405,12 +1405,18 @@ sisfb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, } break; case 16: + if (regno >= 16) + break; + ((u32 *)(info->pseudo_palette))[regno] = (red & 0xf800) | ((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11); break; case 32: + if (regno >= 16) + break; + red >>= 8; green >>= 8; blue >>= 8; diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c index 5c0dab628099..89facb73edfc 100644 --- a/drivers/video/tgafb.c +++ b/drivers/video/tgafb.c @@ -1634,7 +1634,7 @@ tgafb_register(struct device *dev) FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT; info->fbops = &tgafb_ops; info->screen_base = par->tga_fb_base; - info->pseudo_palette = (void *)(par + 1); + info->pseudo_palette = par->palette; /* This should give a reasonable default video mode. */ if (tga_bus_pci) { diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index 55e8aa450bfa..c699864b6f4a 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -976,7 +976,7 @@ static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, return 1; - if (bpp==8) { + if (bpp == 8) { t_outb(0xFF,0x3C6); t_outb(regno,0x3C8); @@ -984,19 +984,21 @@ static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, t_outb(green>>10,0x3C9); t_outb(blue>>10,0x3C9); - } else if (bpp == 16) { /* RGB 565 */ - u32 col; - - col = (red & 0xF800) | ((green & 0xFC00) >> 5) | - ((blue & 0xF800) >> 11); - col |= col << 16; - ((u32 *)(info->pseudo_palette))[regno] = col; - } else if (bpp == 32) /* ARGB 8888 */ - ((u32*)info->pseudo_palette)[regno] = - ((transp & 0xFF00) <<16) | - ((red & 0xFF00) << 8) | - ((green & 0xFF00)) | - ((blue & 0xFF00)>>8); + } else if (regno < 16) { + if (bpp == 16) { /* RGB 565 */ + u32 col; + + col = (red & 0xF800) | ((green & 0xFC00) >> 5) | + ((blue & 0xF800) >> 11); + col |= col << 16; + ((u32 *)(info->pseudo_palette))[regno] = col; + } else if (bpp == 32) /* ARGB 8888 */ + ((u32*)info->pseudo_palette)[regno] = + ((transp & 0xFF00) <<16) | + ((red & 0xFF00) << 8) | + ((green & 0xFF00)) | + ((blue & 0xFF00)>>8); + } // debug("exit\n"); return 0; diff --git a/drivers/video/tx3912fb.c b/drivers/video/tx3912fb.c index 07389ba01eff..e6f7c78da68b 100644 --- a/drivers/video/tx3912fb.c +++ b/drivers/video/tx3912fb.c @@ -291,7 +291,7 @@ int __init tx3912fb_init(void) fb_info.fbops = &tx3912fb_ops; fb_info.var = tx3912fb_var; fb_info.fix = tx3912fb_fix; - fb_info.pseudo_palette = pseudo_palette; + fb_info.pseudo_palette = cfb8; fb_info.flags = FBINFO_DEFAULT; /* Clear the framebuffer */ diff --git a/drivers/video/valkyriefb.c b/drivers/video/valkyriefb.c index ad66f070acb8..7b0cef9ca8f9 100644 --- a/drivers/video/valkyriefb.c +++ b/drivers/video/valkyriefb.c @@ -356,10 +356,9 @@ int __init valkyriefb_init(void) } #endif /* ppc (!CONFIG_MAC) */ - p = kmalloc(sizeof(*p), GFP_ATOMIC); + p = kzalloc(sizeof(*p), GFP_ATOMIC); if (p == 0) return -ENOMEM; - memset(p, 0, sizeof(*p)); /* Map in frame buffer and registers */ if (!request_mem_region(frame_buffer_phys, 0x100000, "valkyriefb")) { diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c index 30c0b948852b..4c3a63308df1 100644 --- a/drivers/video/vt8623fb.c +++ b/drivers/video/vt8623fb.c @@ -68,26 +68,26 @@ static const struct svga_pll vt8623_pll = {2, 127, 2, 7, 0, 3, /* CRT timing register sets */ -struct vga_regset vt8623_h_total_regs[] = {{0x00, 0, 7}, {0x36, 3, 3}, VGA_REGSET_END}; -struct vga_regset vt8623_h_display_regs[] = {{0x01, 0, 7}, VGA_REGSET_END}; -struct vga_regset vt8623_h_blank_start_regs[] = {{0x02, 0, 7}, VGA_REGSET_END}; -struct vga_regset vt8623_h_blank_end_regs[] = {{0x03, 0, 4}, {0x05, 7, 7}, {0x33, 5, 5}, VGA_REGSET_END}; -struct vga_regset vt8623_h_sync_start_regs[] = {{0x04, 0, 7}, {0x33, 4, 4}, VGA_REGSET_END}; -struct vga_regset vt8623_h_sync_end_regs[] = {{0x05, 0, 4}, VGA_REGSET_END}; - -struct vga_regset vt8623_v_total_regs[] = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x35, 0, 0}, VGA_REGSET_END}; -struct vga_regset vt8623_v_display_regs[] = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x35, 2, 2}, VGA_REGSET_END}; -struct vga_regset vt8623_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x35, 3, 3}, VGA_REGSET_END}; -struct vga_regset vt8623_v_blank_end_regs[] = {{0x16, 0, 7}, VGA_REGSET_END}; -struct vga_regset vt8623_v_sync_start_regs[] = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x35, 1, 1}, VGA_REGSET_END}; -struct vga_regset vt8623_v_sync_end_regs[] = {{0x11, 0, 3}, VGA_REGSET_END}; - -struct vga_regset vt8623_offset_regs[] = {{0x13, 0, 7}, {0x35, 5, 7}, VGA_REGSET_END}; -struct vga_regset vt8623_line_compare_regs[] = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x33, 0, 2}, {0x35, 4, 4}, VGA_REGSET_END}; -struct vga_regset vt8623_fetch_count_regs[] = {{0x1C, 0, 7}, {0x1D, 0, 1}, VGA_REGSET_END}; -struct vga_regset vt8623_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x34, 0, 7}, {0x48, 0, 1}, VGA_REGSET_END}; - -struct svga_timing_regs vt8623_timing_regs = { +static struct vga_regset vt8623_h_total_regs[] = {{0x00, 0, 7}, {0x36, 3, 3}, VGA_REGSET_END}; +static struct vga_regset vt8623_h_display_regs[] = {{0x01, 0, 7}, VGA_REGSET_END}; +static struct vga_regset vt8623_h_blank_start_regs[] = {{0x02, 0, 7}, VGA_REGSET_END}; +static struct vga_regset vt8623_h_blank_end_regs[] = {{0x03, 0, 4}, {0x05, 7, 7}, {0x33, 5, 5}, VGA_REGSET_END}; +static struct vga_regset vt8623_h_sync_start_regs[] = {{0x04, 0, 7}, {0x33, 4, 4}, VGA_REGSET_END}; +static struct vga_regset vt8623_h_sync_end_regs[] = {{0x05, 0, 4}, VGA_REGSET_END}; + +static struct vga_regset vt8623_v_total_regs[] = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x35, 0, 0}, VGA_REGSET_END}; +static struct vga_regset vt8623_v_display_regs[] = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x35, 2, 2}, VGA_REGSET_END}; +static struct vga_regset vt8623_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x35, 3, 3}, VGA_REGSET_END}; +static struct vga_regset vt8623_v_blank_end_regs[] = {{0x16, 0, 7}, VGA_REGSET_END}; +static struct vga_regset vt8623_v_sync_start_regs[] = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x35, 1, 1}, VGA_REGSET_END}; +static struct vga_regset vt8623_v_sync_end_regs[] = {{0x11, 0, 3}, VGA_REGSET_END}; + +static struct vga_regset vt8623_offset_regs[] = {{0x13, 0, 7}, {0x35, 5, 7}, VGA_REGSET_END}; +static struct vga_regset vt8623_line_compare_regs[] = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x33, 0, 2}, {0x35, 4, 4}, VGA_REGSET_END}; +static struct vga_regset vt8623_fetch_count_regs[] = {{0x1C, 0, 7}, {0x1D, 0, 1}, VGA_REGSET_END}; +static struct vga_regset vt8623_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x34, 0, 7}, {0x48, 0, 1}, VGA_REGSET_END}; + +static struct svga_timing_regs vt8623_timing_regs = { vt8623_h_total_regs, vt8623_h_display_regs, vt8623_h_blank_start_regs, vt8623_h_blank_end_regs, vt8623_h_sync_start_regs, vt8623_h_sync_end_regs, vt8623_v_total_regs, vt8623_v_display_regs, vt8623_v_blank_start_regs, @@ -903,7 +903,7 @@ static void __exit vt8623fb_cleanup(void) /* Driver Initialisation */ -int __init vt8623fb_init(void) +static int __init vt8623fb_init(void) { #ifndef MODULE diff --git a/drivers/w1/masters/matrox_w1.c b/drivers/w1/masters/matrox_w1.c index 6f9d880ab2e9..d356da5709fc 100644 --- a/drivers/w1/masters/matrox_w1.c +++ b/drivers/w1/masters/matrox_w1.c @@ -164,7 +164,7 @@ static int __devinit matrox_w1_probe(struct pci_dev *pdev, const struct pci_devi if (pdev->vendor != PCI_VENDOR_ID_MATROX || pdev->device != PCI_DEVICE_ID_MATROX_G400) return -ENODEV; - dev = kmalloc(sizeof(struct matrox_device) + + dev = kzalloc(sizeof(struct matrox_device) + sizeof(struct w1_bus_master), GFP_KERNEL); if (!dev) { dev_err(&pdev->dev, @@ -173,7 +173,6 @@ static int __devinit matrox_w1_probe(struct pci_dev *pdev, const struct pci_devi return -ENOMEM; } - memset(dev, 0, sizeof(struct matrox_device) + sizeof(struct w1_bus_master)); dev->bus_master = (struct w1_bus_master *)(dev + 1); diff --git a/drivers/w1/slaves/w1_ds2433.c b/drivers/w1/slaves/w1_ds2433.c index cab56005dd49..858c16a544c2 100644 --- a/drivers/w1/slaves/w1_ds2433.c +++ b/drivers/w1/slaves/w1_ds2433.c @@ -266,10 +266,9 @@ static int w1_f23_add_slave(struct w1_slave *sl) #ifdef CONFIG_W1_SLAVE_DS2433_CRC struct w1_f23_data *data; - data = kmalloc(sizeof(struct w1_f23_data), GFP_KERNEL); + data = kzalloc(sizeof(struct w1_f23_data), GFP_KERNEL); if (!data) return -ENOMEM; - memset(data, 0, sizeof(struct w1_f23_data)); sl->family_data = data; #endif /* CONFIG_W1_SLAVE_DS2433_CRC */ diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index f5c5b760ed7b..8d7ab74170d5 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -520,7 +520,7 @@ static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn) int err; struct w1_netlink_msg msg; - sl = kmalloc(sizeof(struct w1_slave), GFP_KERNEL); + sl = kzalloc(sizeof(struct w1_slave), GFP_KERNEL); if (!sl) { dev_err(&dev->dev, "%s: failed to allocate new slave device.\n", @@ -528,7 +528,6 @@ static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn) return -ENOMEM; } - memset(sl, 0, sizeof(*sl)); sl->owner = THIS_MODULE; sl->master = dev; @@ -805,6 +804,7 @@ static int w1_control(void *data) struct w1_master *dev, *n; int have_to_wait = 0; + set_freezable(); while (!kthread_should_stop() || have_to_wait) { have_to_wait = 0; diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c index 258defdb2efd..2fbd8dd16df5 100644 --- a/drivers/w1/w1_int.c +++ b/drivers/w1/w1_int.c @@ -41,7 +41,7 @@ static struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl, /* * We are in process context(kernel thread), so can sleep. */ - dev = kmalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL); + dev = kzalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL); if (!dev) { printk(KERN_ERR "Failed to allocate %zd bytes for new w1 device.\n", @@ -49,7 +49,6 @@ static struct w1_master * w1_alloc_dev(u32 id, int slave_count, int slave_ttl, return NULL; } - memset(dev, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master)); dev->bus_master = (struct w1_bus_master *)(dev + 1); diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile new file mode 100644 index 000000000000..56592f0d6cef --- /dev/null +++ b/drivers/xen/Makefile @@ -0,0 +1,2 @@ +obj-y += grant-table.o +obj-y += xenbus/ diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c new file mode 100644 index 000000000000..ea94dbabf9a9 --- /dev/null +++ b/drivers/xen/grant-table.c @@ -0,0 +1,582 @@ +/****************************************************************************** + * grant_table.c + * + * Granting foreign access to our memory reservation. + * + * Copyright (c) 2005-2006, Christopher Clark + * Copyright (c) 2004-2005, K A Fraser + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/vmalloc.h> +#include <linux/uaccess.h> + +#include <xen/interface/xen.h> +#include <xen/page.h> +#include <xen/grant_table.h> + +#include <asm/pgtable.h> +#include <asm/sync_bitops.h> + + +/* External tools reserve first few grant table entries. */ +#define NR_RESERVED_ENTRIES 8 +#define GNTTAB_LIST_END 0xffffffff +#define GREFS_PER_GRANT_FRAME (PAGE_SIZE / sizeof(struct grant_entry)) + +static grant_ref_t **gnttab_list; +static unsigned int nr_grant_frames; +static unsigned int boot_max_nr_grant_frames; +static int gnttab_free_count; +static grant_ref_t gnttab_free_head; +static DEFINE_SPINLOCK(gnttab_list_lock); + +static struct grant_entry *shared; + +static struct gnttab_free_callback *gnttab_free_callback_list; + +static int gnttab_expand(unsigned int req_entries); + +#define RPP (PAGE_SIZE / sizeof(grant_ref_t)) + +static inline grant_ref_t *__gnttab_entry(grant_ref_t entry) +{ + return &gnttab_list[(entry) / RPP][(entry) % RPP]; +} +/* This can be used as an l-value */ +#define gnttab_entry(entry) (*__gnttab_entry(entry)) + +static int get_free_entries(unsigned count) +{ + unsigned long flags; + int ref, rc; + grant_ref_t head; + + spin_lock_irqsave(&gnttab_list_lock, flags); + + if ((gnttab_free_count < count) && + ((rc = gnttab_expand(count - gnttab_free_count)) < 0)) { + spin_unlock_irqrestore(&gnttab_list_lock, flags); + return rc; + } + + ref = head = gnttab_free_head; + gnttab_free_count -= count; + while (count-- > 1) + head = gnttab_entry(head); + gnttab_free_head = gnttab_entry(head); + gnttab_entry(head) = GNTTAB_LIST_END; + + spin_unlock_irqrestore(&gnttab_list_lock, flags); + + return ref; +} + +static void do_free_callbacks(void) +{ + struct gnttab_free_callback *callback, *next; + + callback = gnttab_free_callback_list; + gnttab_free_callback_list = NULL; + + while (callback != NULL) { + next = callback->next; + if (gnttab_free_count >= callback->count) { + callback->next = NULL; + callback->fn(callback->arg); + } else { + callback->next = gnttab_free_callback_list; + gnttab_free_callback_list = callback; + } + callback = next; + } +} + +static inline void check_free_callbacks(void) +{ + if (unlikely(gnttab_free_callback_list)) + do_free_callbacks(); +} + +static void put_free_entry(grant_ref_t ref) +{ + unsigned long flags; + spin_lock_irqsave(&gnttab_list_lock, flags); + gnttab_entry(ref) = gnttab_free_head; + gnttab_free_head = ref; + gnttab_free_count++; + check_free_callbacks(); + spin_unlock_irqrestore(&gnttab_list_lock, flags); +} + +static void update_grant_entry(grant_ref_t ref, domid_t domid, + unsigned long frame, unsigned flags) +{ + /* + * Introducing a valid entry into the grant table: + * 1. Write ent->domid. + * 2. Write ent->frame: + * GTF_permit_access: Frame to which access is permitted. + * GTF_accept_transfer: Pseudo-phys frame slot being filled by new + * frame, or zero if none. + * 3. Write memory barrier (WMB). + * 4. Write ent->flags, inc. valid type. + */ + shared[ref].frame = frame; + shared[ref].domid = domid; + wmb(); + shared[ref].flags = flags; +} + +/* + * Public grant-issuing interface functions + */ +void gnttab_grant_foreign_access_ref(grant_ref_t ref, domid_t domid, + unsigned long frame, int readonly) +{ + update_grant_entry(ref, domid, frame, + GTF_permit_access | (readonly ? GTF_readonly : 0)); +} +EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access_ref); + +int gnttab_grant_foreign_access(domid_t domid, unsigned long frame, + int readonly) +{ + int ref; + + ref = get_free_entries(1); + if (unlikely(ref < 0)) + return -ENOSPC; + + gnttab_grant_foreign_access_ref(ref, domid, frame, readonly); + + return ref; +} +EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access); + +int gnttab_query_foreign_access(grant_ref_t ref) +{ + u16 nflags; + + nflags = shared[ref].flags; + + return (nflags & (GTF_reading|GTF_writing)); +} +EXPORT_SYMBOL_GPL(gnttab_query_foreign_access); + +int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly) +{ + u16 flags, nflags; + + nflags = shared[ref].flags; + do { + flags = nflags; + if (flags & (GTF_reading|GTF_writing)) { + printk(KERN_ALERT "WARNING: g.e. still in use!\n"); + return 0; + } + } while ((nflags = sync_cmpxchg(&shared[ref].flags, flags, 0)) != flags); + + return 1; +} +EXPORT_SYMBOL_GPL(gnttab_end_foreign_access_ref); + +void gnttab_end_foreign_access(grant_ref_t ref, int readonly, + unsigned long page) +{ + if (gnttab_end_foreign_access_ref(ref, readonly)) { + put_free_entry(ref); + if (page != 0) + free_page(page); + } else { + /* XXX This needs to be fixed so that the ref and page are + placed on a list to be freed up later. */ + printk(KERN_WARNING + "WARNING: leaking g.e. and page still in use!\n"); + } +} +EXPORT_SYMBOL_GPL(gnttab_end_foreign_access); + +int gnttab_grant_foreign_transfer(domid_t domid, unsigned long pfn) +{ + int ref; + + ref = get_free_entries(1); + if (unlikely(ref < 0)) + return -ENOSPC; + gnttab_grant_foreign_transfer_ref(ref, domid, pfn); + + return ref; +} +EXPORT_SYMBOL_GPL(gnttab_grant_foreign_transfer); + +void gnttab_grant_foreign_transfer_ref(grant_ref_t ref, domid_t domid, + unsigned long pfn) +{ + update_grant_entry(ref, domid, pfn, GTF_accept_transfer); +} +EXPORT_SYMBOL_GPL(gnttab_grant_foreign_transfer_ref); + +unsigned long gnttab_end_foreign_transfer_ref(grant_ref_t ref) +{ + unsigned long frame; + u16 flags; + + /* + * If a transfer is not even yet started, try to reclaim the grant + * reference and return failure (== 0). + */ + while (!((flags = shared[ref].flags) & GTF_transfer_committed)) { + if (sync_cmpxchg(&shared[ref].flags, flags, 0) == flags) + return 0; + cpu_relax(); + } + + /* If a transfer is in progress then wait until it is completed. */ + while (!(flags & GTF_transfer_completed)) { + flags = shared[ref].flags; + cpu_relax(); + } + + rmb(); /* Read the frame number /after/ reading completion status. */ + frame = shared[ref].frame; + BUG_ON(frame == 0); + + return frame; +} +EXPORT_SYMBOL_GPL(gnttab_end_foreign_transfer_ref); + +unsigned long gnttab_end_foreign_transfer(grant_ref_t ref) +{ + unsigned long frame = gnttab_end_foreign_transfer_ref(ref); + put_free_entry(ref); + return frame; +} +EXPORT_SYMBOL_GPL(gnttab_end_foreign_transfer); + +void gnttab_free_grant_reference(grant_ref_t ref) +{ + put_free_entry(ref); +} +EXPORT_SYMBOL_GPL(gnttab_free_grant_reference); + +void gnttab_free_grant_references(grant_ref_t head) +{ + grant_ref_t ref; + unsigned long flags; + int count = 1; + if (head == GNTTAB_LIST_END) + return; + spin_lock_irqsave(&gnttab_list_lock, flags); + ref = head; + while (gnttab_entry(ref) != GNTTAB_LIST_END) { + ref = gnttab_entry(ref); + count++; + } + gnttab_entry(ref) = gnttab_free_head; + gnttab_free_head = head; + gnttab_free_count += count; + check_free_callbacks(); + spin_unlock_irqrestore(&gnttab_list_lock, flags); +} +EXPORT_SYMBOL_GPL(gnttab_free_grant_references); + +int gnttab_alloc_grant_references(u16 count, grant_ref_t *head) +{ + int h = get_free_entries(count); + + if (h < 0) + return -ENOSPC; + + *head = h; + + return 0; +} +EXPORT_SYMBOL_GPL(gnttab_alloc_grant_references); + +int gnttab_empty_grant_references(const grant_ref_t *private_head) +{ + return (*private_head == GNTTAB_LIST_END); +} +EXPORT_SYMBOL_GPL(gnttab_empty_grant_references); + +int gnttab_claim_grant_reference(grant_ref_t *private_head) +{ + grant_ref_t g = *private_head; + if (unlikely(g == GNTTAB_LIST_END)) + return -ENOSPC; + *private_head = gnttab_entry(g); + return g; +} +EXPORT_SYMBOL_GPL(gnttab_claim_grant_reference); + +void gnttab_release_grant_reference(grant_ref_t *private_head, + grant_ref_t release) +{ + gnttab_entry(release) = *private_head; + *private_head = release; +} +EXPORT_SYMBOL_GPL(gnttab_release_grant_reference); + +void gnttab_request_free_callback(struct gnttab_free_callback *callback, + void (*fn)(void *), void *arg, u16 count) +{ + unsigned long flags; + spin_lock_irqsave(&gnttab_list_lock, flags); + if (callback->next) + goto out; + callback->fn = fn; + callback->arg = arg; + callback->count = count; + callback->next = gnttab_free_callback_list; + gnttab_free_callback_list = callback; + check_free_callbacks(); +out: + spin_unlock_irqrestore(&gnttab_list_lock, flags); +} +EXPORT_SYMBOL_GPL(gnttab_request_free_callback); + +void gnttab_cancel_free_callback(struct gnttab_free_callback *callback) +{ + struct gnttab_free_callback **pcb; + unsigned long flags; + + spin_lock_irqsave(&gnttab_list_lock, flags); + for (pcb = &gnttab_free_callback_list; *pcb; pcb = &(*pcb)->next) { + if (*pcb == callback) { + *pcb = callback->next; + break; + } + } + spin_unlock_irqrestore(&gnttab_list_lock, flags); +} +EXPORT_SYMBOL_GPL(gnttab_cancel_free_callback); + +static int grow_gnttab_list(unsigned int more_frames) +{ + unsigned int new_nr_grant_frames, extra_entries, i; + + new_nr_grant_frames = nr_grant_frames + more_frames; + extra_entries = more_frames * GREFS_PER_GRANT_FRAME; + + for (i = nr_grant_frames; i < new_nr_grant_frames; i++) { + gnttab_list[i] = (grant_ref_t *)__get_free_page(GFP_ATOMIC); + if (!gnttab_list[i]) + goto grow_nomem; + } + + + for (i = GREFS_PER_GRANT_FRAME * nr_grant_frames; + i < GREFS_PER_GRANT_FRAME * new_nr_grant_frames - 1; i++) + gnttab_entry(i) = i + 1; + + gnttab_entry(i) = gnttab_free_head; + gnttab_free_head = GREFS_PER_GRANT_FRAME * nr_grant_frames; + gnttab_free_count += extra_entries; + + nr_grant_frames = new_nr_grant_frames; + + check_free_callbacks(); + + return 0; + +grow_nomem: + for ( ; i >= nr_grant_frames; i--) + free_page((unsigned long) gnttab_list[i]); + return -ENOMEM; +} + +static unsigned int __max_nr_grant_frames(void) +{ + struct gnttab_query_size query; + int rc; + + query.dom = DOMID_SELF; + + rc = HYPERVISOR_grant_table_op(GNTTABOP_query_size, &query, 1); + if ((rc < 0) || (query.status != GNTST_okay)) + return 4; /* Legacy max supported number of frames */ + + return query.max_nr_frames; +} + +static inline unsigned int max_nr_grant_frames(void) +{ + unsigned int xen_max = __max_nr_grant_frames(); + + if (xen_max > boot_max_nr_grant_frames) + return boot_max_nr_grant_frames; + return xen_max; +} + +static int map_pte_fn(pte_t *pte, struct page *pmd_page, + unsigned long addr, void *data) +{ + unsigned long **frames = (unsigned long **)data; + + set_pte_at(&init_mm, addr, pte, mfn_pte((*frames)[0], PAGE_KERNEL)); + (*frames)++; + return 0; +} + +static int unmap_pte_fn(pte_t *pte, struct page *pmd_page, + unsigned long addr, void *data) +{ + + set_pte_at(&init_mm, addr, pte, __pte(0)); + return 0; +} + +static int gnttab_map(unsigned int start_idx, unsigned int end_idx) +{ + struct gnttab_setup_table setup; + unsigned long *frames; + unsigned int nr_gframes = end_idx + 1; + int rc; + + frames = kmalloc(nr_gframes * sizeof(unsigned long), GFP_ATOMIC); + if (!frames) + return -ENOMEM; + + setup.dom = DOMID_SELF; + setup.nr_frames = nr_gframes; + setup.frame_list = frames; + + rc = HYPERVISOR_grant_table_op(GNTTABOP_setup_table, &setup, 1); + if (rc == -ENOSYS) { + kfree(frames); + return -ENOSYS; + } + + BUG_ON(rc || setup.status); + + if (shared == NULL) { + struct vm_struct *area; + area = alloc_vm_area(PAGE_SIZE * max_nr_grant_frames()); + BUG_ON(area == NULL); + shared = area->addr; + } + rc = apply_to_page_range(&init_mm, (unsigned long)shared, + PAGE_SIZE * nr_gframes, + map_pte_fn, &frames); + BUG_ON(rc); + frames -= nr_gframes; /* adjust after map_pte_fn() */ + + kfree(frames); + + return 0; +} + +static int gnttab_resume(void) +{ + if (max_nr_grant_frames() < nr_grant_frames) + return -ENOSYS; + return gnttab_map(0, nr_grant_frames - 1); +} + +static int gnttab_suspend(void) +{ + apply_to_page_range(&init_mm, (unsigned long)shared, + PAGE_SIZE * nr_grant_frames, + unmap_pte_fn, NULL); + + return 0; +} + +static int gnttab_expand(unsigned int req_entries) +{ + int rc; + unsigned int cur, extra; + + cur = nr_grant_frames; + extra = ((req_entries + (GREFS_PER_GRANT_FRAME-1)) / + GREFS_PER_GRANT_FRAME); + if (cur + extra > max_nr_grant_frames()) + return -ENOSPC; + + rc = gnttab_map(cur, cur + extra - 1); + if (rc == 0) + rc = grow_gnttab_list(extra); + + return rc; +} + +static int __devinit gnttab_init(void) +{ + int i; + unsigned int max_nr_glist_frames; + unsigned int nr_init_grefs; + + if (!is_running_on_xen()) + return -ENODEV; + + nr_grant_frames = 1; + boot_max_nr_grant_frames = __max_nr_grant_frames(); + + /* Determine the maximum number of frames required for the + * grant reference free list on the current hypervisor. + */ + max_nr_glist_frames = (boot_max_nr_grant_frames * + GREFS_PER_GRANT_FRAME / + (PAGE_SIZE / sizeof(grant_ref_t))); + + gnttab_list = kmalloc(max_nr_glist_frames * sizeof(grant_ref_t *), + GFP_KERNEL); + if (gnttab_list == NULL) + return -ENOMEM; + + for (i = 0; i < nr_grant_frames; i++) { + gnttab_list[i] = (grant_ref_t *)__get_free_page(GFP_KERNEL); + if (gnttab_list[i] == NULL) + goto ini_nomem; + } + + if (gnttab_resume() < 0) + return -ENODEV; + + nr_init_grefs = nr_grant_frames * GREFS_PER_GRANT_FRAME; + + for (i = NR_RESERVED_ENTRIES; i < nr_init_grefs - 1; i++) + gnttab_entry(i) = i + 1; + + gnttab_entry(nr_init_grefs - 1) = GNTTAB_LIST_END; + gnttab_free_count = nr_init_grefs - NR_RESERVED_ENTRIES; + gnttab_free_head = NR_RESERVED_ENTRIES; + + printk("Grant table initialized\n"); + return 0; + + ini_nomem: + for (i--; i >= 0; i--) + free_page((unsigned long)gnttab_list[i]); + kfree(gnttab_list); + return -ENOMEM; +} + +core_initcall(gnttab_init); diff --git a/drivers/xen/xenbus/Makefile b/drivers/xen/xenbus/Makefile new file mode 100644 index 000000000000..5571f5b84223 --- /dev/null +++ b/drivers/xen/xenbus/Makefile @@ -0,0 +1,7 @@ +obj-y += xenbus.o + +xenbus-objs = +xenbus-objs += xenbus_client.o +xenbus-objs += xenbus_comms.o +xenbus-objs += xenbus_xs.o +xenbus-objs += xenbus_probe.o diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c new file mode 100644 index 000000000000..9fd2f70ab46d --- /dev/null +++ b/drivers/xen/xenbus/xenbus_client.c @@ -0,0 +1,569 @@ +/****************************************************************************** + * Client-facing interface for the Xenbus driver. In other words, the + * interface between the Xenbus and the device-specific code, be it the + * frontend or the backend of that driver. + * + * Copyright (C) 2005 XenSource Ltd + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <linux/types.h> +#include <linux/vmalloc.h> +#include <asm/xen/hypervisor.h> +#include <xen/interface/xen.h> +#include <xen/interface/event_channel.h> +#include <xen/events.h> +#include <xen/grant_table.h> +#include <xen/xenbus.h> + +const char *xenbus_strstate(enum xenbus_state state) +{ + static const char *const name[] = { + [ XenbusStateUnknown ] = "Unknown", + [ XenbusStateInitialising ] = "Initialising", + [ XenbusStateInitWait ] = "InitWait", + [ XenbusStateInitialised ] = "Initialised", + [ XenbusStateConnected ] = "Connected", + [ XenbusStateClosing ] = "Closing", + [ XenbusStateClosed ] = "Closed", + }; + return (state < ARRAY_SIZE(name)) ? name[state] : "INVALID"; +} +EXPORT_SYMBOL_GPL(xenbus_strstate); + +/** + * xenbus_watch_path - register a watch + * @dev: xenbus device + * @path: path to watch + * @watch: watch to register + * @callback: callback to register + * + * Register a @watch on the given path, using the given xenbus_watch structure + * for storage, and the given @callback function as the callback. Return 0 on + * success, or -errno on error. On success, the given @path will be saved as + * @watch->node, and remains the caller's to free. On error, @watch->node will + * be NULL, the device will switch to %XenbusStateClosing, and the error will + * be saved in the store. + */ +int xenbus_watch_path(struct xenbus_device *dev, const char *path, + struct xenbus_watch *watch, + void (*callback)(struct xenbus_watch *, + const char **, unsigned int)) +{ + int err; + + watch->node = path; + watch->callback = callback; + + err = register_xenbus_watch(watch); + + if (err) { + watch->node = NULL; + watch->callback = NULL; + xenbus_dev_fatal(dev, err, "adding watch on %s", path); + } + + return err; +} +EXPORT_SYMBOL_GPL(xenbus_watch_path); + + +/** + * xenbus_watch_pathfmt - register a watch on a sprintf-formatted path + * @dev: xenbus device + * @watch: watch to register + * @callback: callback to register + * @pathfmt: format of path to watch + * + * Register a watch on the given @path, using the given xenbus_watch + * structure for storage, and the given @callback function as the callback. + * Return 0 on success, or -errno on error. On success, the watched path + * (@path/@path2) will be saved as @watch->node, and becomes the caller's to + * kfree(). On error, watch->node will be NULL, so the caller has nothing to + * free, the device will switch to %XenbusStateClosing, and the error will be + * saved in the store. + */ +int xenbus_watch_pathfmt(struct xenbus_device *dev, + struct xenbus_watch *watch, + void (*callback)(struct xenbus_watch *, + const char **, unsigned int), + const char *pathfmt, ...) +{ + int err; + va_list ap; + char *path; + + va_start(ap, pathfmt); + path = kvasprintf(GFP_KERNEL, pathfmt, ap); + va_end(ap); + + if (!path) { + xenbus_dev_fatal(dev, -ENOMEM, "allocating path for watch"); + return -ENOMEM; + } + err = xenbus_watch_path(dev, path, watch, callback); + + if (err) + kfree(path); + return err; +} +EXPORT_SYMBOL_GPL(xenbus_watch_pathfmt); + + +/** + * xenbus_switch_state + * @dev: xenbus device + * @xbt: transaction handle + * @state: new state + * + * Advertise in the store a change of the given driver to the given new_state. + * Return 0 on success, or -errno on error. On error, the device will switch + * to XenbusStateClosing, and the error will be saved in the store. + */ +int xenbus_switch_state(struct xenbus_device *dev, enum xenbus_state state) +{ + /* We check whether the state is currently set to the given value, and + if not, then the state is set. We don't want to unconditionally + write the given state, because we don't want to fire watches + unnecessarily. Furthermore, if the node has gone, we don't write + to it, as the device will be tearing down, and we don't want to + resurrect that directory. + + Note that, because of this cached value of our state, this function + will not work inside a Xenstore transaction (something it was + trying to in the past) because dev->state would not get reset if + the transaction was aborted. + + */ + + int current_state; + int err; + + if (state == dev->state) + return 0; + + err = xenbus_scanf(XBT_NIL, dev->nodename, "state", "%d", + ¤t_state); + if (err != 1) + return 0; + + err = xenbus_printf(XBT_NIL, dev->nodename, "state", "%d", state); + if (err) { + if (state != XenbusStateClosing) /* Avoid looping */ + xenbus_dev_fatal(dev, err, "writing new state"); + return err; + } + + dev->state = state; + + return 0; +} +EXPORT_SYMBOL_GPL(xenbus_switch_state); + +int xenbus_frontend_closed(struct xenbus_device *dev) +{ + xenbus_switch_state(dev, XenbusStateClosed); + complete(&dev->down); + return 0; +} +EXPORT_SYMBOL_GPL(xenbus_frontend_closed); + +/** + * Return the path to the error node for the given device, or NULL on failure. + * If the value returned is non-NULL, then it is the caller's to kfree. + */ +static char *error_path(struct xenbus_device *dev) +{ + return kasprintf(GFP_KERNEL, "error/%s", dev->nodename); +} + + +static void xenbus_va_dev_error(struct xenbus_device *dev, int err, + const char *fmt, va_list ap) +{ + int ret; + unsigned int len; + char *printf_buffer = NULL; + char *path_buffer = NULL; + +#define PRINTF_BUFFER_SIZE 4096 + printf_buffer = kmalloc(PRINTF_BUFFER_SIZE, GFP_KERNEL); + if (printf_buffer == NULL) + goto fail; + + len = sprintf(printf_buffer, "%i ", -err); + ret = vsnprintf(printf_buffer+len, PRINTF_BUFFER_SIZE-len, fmt, ap); + + BUG_ON(len + ret > PRINTF_BUFFER_SIZE-1); + + dev_err(&dev->dev, "%s\n", printf_buffer); + + path_buffer = error_path(dev); + + if (path_buffer == NULL) { + dev_err(&dev->dev, "failed to write error node for %s (%s)\n", + dev->nodename, printf_buffer); + goto fail; + } + + if (xenbus_write(XBT_NIL, path_buffer, "error", printf_buffer) != 0) { + dev_err(&dev->dev, "failed to write error node for %s (%s)\n", + dev->nodename, printf_buffer); + goto fail; + } + +fail: + kfree(printf_buffer); + kfree(path_buffer); +} + + +/** + * xenbus_dev_error + * @dev: xenbus device + * @err: error to report + * @fmt: error message format + * + * Report the given negative errno into the store, along with the given + * formatted message. + */ +void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + xenbus_va_dev_error(dev, err, fmt, ap); + va_end(ap); +} +EXPORT_SYMBOL_GPL(xenbus_dev_error); + +/** + * xenbus_dev_fatal + * @dev: xenbus device + * @err: error to report + * @fmt: error message format + * + * Equivalent to xenbus_dev_error(dev, err, fmt, args), followed by + * xenbus_switch_state(dev, NULL, XenbusStateClosing) to schedule an orderly + * closedown of this driver and its peer. + */ + +void xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + xenbus_va_dev_error(dev, err, fmt, ap); + va_end(ap); + + xenbus_switch_state(dev, XenbusStateClosing); +} +EXPORT_SYMBOL_GPL(xenbus_dev_fatal); + +/** + * xenbus_grant_ring + * @dev: xenbus device + * @ring_mfn: mfn of ring to grant + + * Grant access to the given @ring_mfn to the peer of the given device. Return + * 0 on success, or -errno on error. On error, the device will switch to + * XenbusStateClosing, and the error will be saved in the store. + */ +int xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn) +{ + int err = gnttab_grant_foreign_access(dev->otherend_id, ring_mfn, 0); + if (err < 0) + xenbus_dev_fatal(dev, err, "granting access to ring page"); + return err; +} +EXPORT_SYMBOL_GPL(xenbus_grant_ring); + + +/** + * Allocate an event channel for the given xenbus_device, assigning the newly + * created local port to *port. Return 0 on success, or -errno on error. On + * error, the device will switch to XenbusStateClosing, and the error will be + * saved in the store. + */ +int xenbus_alloc_evtchn(struct xenbus_device *dev, int *port) +{ + struct evtchn_alloc_unbound alloc_unbound; + int err; + + alloc_unbound.dom = DOMID_SELF; + alloc_unbound.remote_dom = dev->otherend_id; + + err = HYPERVISOR_event_channel_op(EVTCHNOP_alloc_unbound, + &alloc_unbound); + if (err) + xenbus_dev_fatal(dev, err, "allocating event channel"); + else + *port = alloc_unbound.port; + + return err; +} +EXPORT_SYMBOL_GPL(xenbus_alloc_evtchn); + + +/** + * Bind to an existing interdomain event channel in another domain. Returns 0 + * on success and stores the local port in *port. On error, returns -errno, + * switches the device to XenbusStateClosing, and saves the error in XenStore. + */ +int xenbus_bind_evtchn(struct xenbus_device *dev, int remote_port, int *port) +{ + struct evtchn_bind_interdomain bind_interdomain; + int err; + + bind_interdomain.remote_dom = dev->otherend_id; + bind_interdomain.remote_port = remote_port; + + err = HYPERVISOR_event_channel_op(EVTCHNOP_bind_interdomain, + &bind_interdomain); + if (err) + xenbus_dev_fatal(dev, err, + "binding to event channel %d from domain %d", + remote_port, dev->otherend_id); + else + *port = bind_interdomain.local_port; + + return err; +} +EXPORT_SYMBOL_GPL(xenbus_bind_evtchn); + + +/** + * Free an existing event channel. Returns 0 on success or -errno on error. + */ +int xenbus_free_evtchn(struct xenbus_device *dev, int port) +{ + struct evtchn_close close; + int err; + + close.port = port; + + err = HYPERVISOR_event_channel_op(EVTCHNOP_close, &close); + if (err) + xenbus_dev_error(dev, err, "freeing event channel %d", port); + + return err; +} +EXPORT_SYMBOL_GPL(xenbus_free_evtchn); + + +/** + * xenbus_map_ring_valloc + * @dev: xenbus device + * @gnt_ref: grant reference + * @vaddr: pointer to address to be filled out by mapping + * + * Based on Rusty Russell's skeleton driver's map_page. + * Map a page of memory into this domain from another domain's grant table. + * xenbus_map_ring_valloc allocates a page of virtual address space, maps the + * page to that address, and sets *vaddr to that address. + * Returns 0 on success, and GNTST_* (see xen/include/interface/grant_table.h) + * or -ENOMEM on error. If an error is returned, device will switch to + * XenbusStateClosing and the error message will be saved in XenStore. + */ +int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr) +{ + struct gnttab_map_grant_ref op = { + .flags = GNTMAP_host_map, + .ref = gnt_ref, + .dom = dev->otherend_id, + }; + struct vm_struct *area; + + *vaddr = NULL; + + area = alloc_vm_area(PAGE_SIZE); + if (!area) + return -ENOMEM; + + op.host_addr = (unsigned long)area->addr; + + if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) + BUG(); + + if (op.status != GNTST_okay) { + free_vm_area(area); + xenbus_dev_fatal(dev, op.status, + "mapping in shared page %d from domain %d", + gnt_ref, dev->otherend_id); + return op.status; + } + + /* Stuff the handle in an unused field */ + area->phys_addr = (unsigned long)op.handle; + + *vaddr = area->addr; + return 0; +} +EXPORT_SYMBOL_GPL(xenbus_map_ring_valloc); + + +/** + * xenbus_map_ring + * @dev: xenbus device + * @gnt_ref: grant reference + * @handle: pointer to grant handle to be filled + * @vaddr: address to be mapped to + * + * Map a page of memory into this domain from another domain's grant table. + * xenbus_map_ring does not allocate the virtual address space (you must do + * this yourself!). It only maps in the page to the specified address. + * Returns 0 on success, and GNTST_* (see xen/include/interface/grant_table.h) + * or -ENOMEM on error. If an error is returned, device will switch to + * XenbusStateClosing and the error message will be saved in XenStore. + */ +int xenbus_map_ring(struct xenbus_device *dev, int gnt_ref, + grant_handle_t *handle, void *vaddr) +{ + struct gnttab_map_grant_ref op = { + .host_addr = (unsigned long)vaddr, + .flags = GNTMAP_host_map, + .ref = gnt_ref, + .dom = dev->otherend_id, + }; + + if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) + BUG(); + + if (op.status != GNTST_okay) { + xenbus_dev_fatal(dev, op.status, + "mapping in shared page %d from domain %d", + gnt_ref, dev->otherend_id); + } else + *handle = op.handle; + + return op.status; +} +EXPORT_SYMBOL_GPL(xenbus_map_ring); + + +/** + * xenbus_unmap_ring_vfree + * @dev: xenbus device + * @vaddr: addr to unmap + * + * Based on Rusty Russell's skeleton driver's unmap_page. + * Unmap a page of memory in this domain that was imported from another domain. + * Use xenbus_unmap_ring_vfree if you mapped in your memory with + * xenbus_map_ring_valloc (it will free the virtual address space). + * Returns 0 on success and returns GNTST_* on error + * (see xen/include/interface/grant_table.h). + */ +int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr) +{ + struct vm_struct *area; + struct gnttab_unmap_grant_ref op = { + .host_addr = (unsigned long)vaddr, + }; + + /* It'd be nice if linux/vmalloc.h provided a find_vm_area(void *addr) + * method so that we don't have to muck with vmalloc internals here. + * We could force the user to hang on to their struct vm_struct from + * xenbus_map_ring_valloc, but these 6 lines considerably simplify + * this API. + */ + read_lock(&vmlist_lock); + for (area = vmlist; area != NULL; area = area->next) { + if (area->addr == vaddr) + break; + } + read_unlock(&vmlist_lock); + + if (!area) { + xenbus_dev_error(dev, -ENOENT, + "can't find mapped virtual address %p", vaddr); + return GNTST_bad_virt_addr; + } + + op.handle = (grant_handle_t)area->phys_addr; + + if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1)) + BUG(); + + if (op.status == GNTST_okay) + free_vm_area(area); + else + xenbus_dev_error(dev, op.status, + "unmapping page at handle %d error %d", + (int16_t)area->phys_addr, op.status); + + return op.status; +} +EXPORT_SYMBOL_GPL(xenbus_unmap_ring_vfree); + + +/** + * xenbus_unmap_ring + * @dev: xenbus device + * @handle: grant handle + * @vaddr: addr to unmap + * + * Unmap a page of memory in this domain that was imported from another domain. + * Returns 0 on success and returns GNTST_* on error + * (see xen/include/interface/grant_table.h). + */ +int xenbus_unmap_ring(struct xenbus_device *dev, + grant_handle_t handle, void *vaddr) +{ + struct gnttab_unmap_grant_ref op = { + .host_addr = (unsigned long)vaddr, + .handle = handle, + }; + + if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1)) + BUG(); + + if (op.status != GNTST_okay) + xenbus_dev_error(dev, op.status, + "unmapping page at handle %d error %d", + handle, op.status); + + return op.status; +} +EXPORT_SYMBOL_GPL(xenbus_unmap_ring); + + +/** + * xenbus_read_driver_state + * @path: path for driver + * + * Return the state of the driver rooted at the given store path, or + * XenbusStateUnknown if no state can be read. + */ +enum xenbus_state xenbus_read_driver_state(const char *path) +{ + enum xenbus_state result; + int err = xenbus_gather(XBT_NIL, path, "state", "%d", &result, NULL); + if (err) + result = XenbusStateUnknown; + + return result; +} +EXPORT_SYMBOL_GPL(xenbus_read_driver_state); diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c new file mode 100644 index 000000000000..6efbe3f29ca5 --- /dev/null +++ b/drivers/xen/xenbus/xenbus_comms.c @@ -0,0 +1,233 @@ +/****************************************************************************** + * xenbus_comms.c + * + * Low level code to talks to Xen Store: ringbuffer and event channel. + * + * Copyright (C) 2005 Rusty Russell, IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <linux/wait.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/err.h> +#include <xen/xenbus.h> +#include <asm/xen/hypervisor.h> +#include <xen/events.h> +#include <xen/page.h> +#include "xenbus_comms.h" + +static int xenbus_irq; + +static DECLARE_WORK(probe_work, xenbus_probe); + +static DECLARE_WAIT_QUEUE_HEAD(xb_waitq); + +static irqreturn_t wake_waiting(int irq, void *unused) +{ + if (unlikely(xenstored_ready == 0)) { + xenstored_ready = 1; + schedule_work(&probe_work); + } + + wake_up(&xb_waitq); + return IRQ_HANDLED; +} + +static int check_indexes(XENSTORE_RING_IDX cons, XENSTORE_RING_IDX prod) +{ + return ((prod - cons) <= XENSTORE_RING_SIZE); +} + +static void *get_output_chunk(XENSTORE_RING_IDX cons, + XENSTORE_RING_IDX prod, + char *buf, uint32_t *len) +{ + *len = XENSTORE_RING_SIZE - MASK_XENSTORE_IDX(prod); + if ((XENSTORE_RING_SIZE - (prod - cons)) < *len) + *len = XENSTORE_RING_SIZE - (prod - cons); + return buf + MASK_XENSTORE_IDX(prod); +} + +static const void *get_input_chunk(XENSTORE_RING_IDX cons, + XENSTORE_RING_IDX prod, + const char *buf, uint32_t *len) +{ + *len = XENSTORE_RING_SIZE - MASK_XENSTORE_IDX(cons); + if ((prod - cons) < *len) + *len = prod - cons; + return buf + MASK_XENSTORE_IDX(cons); +} + +/** + * xb_write - low level write + * @data: buffer to send + * @len: length of buffer + * + * Returns 0 on success, error otherwise. + */ +int xb_write(const void *data, unsigned len) +{ + struct xenstore_domain_interface *intf = xen_store_interface; + XENSTORE_RING_IDX cons, prod; + int rc; + + while (len != 0) { + void *dst; + unsigned int avail; + + rc = wait_event_interruptible( + xb_waitq, + (intf->req_prod - intf->req_cons) != + XENSTORE_RING_SIZE); + if (rc < 0) + return rc; + + /* Read indexes, then verify. */ + cons = intf->req_cons; + prod = intf->req_prod; + if (!check_indexes(cons, prod)) { + intf->req_cons = intf->req_prod = 0; + return -EIO; + } + + dst = get_output_chunk(cons, prod, intf->req, &avail); + if (avail == 0) + continue; + if (avail > len) + avail = len; + + /* Must write data /after/ reading the consumer index. */ + mb(); + + memcpy(dst, data, avail); + data += avail; + len -= avail; + + /* Other side must not see new producer until data is there. */ + wmb(); + intf->req_prod += avail; + + /* Implies mb(): other side will see the updated producer. */ + notify_remote_via_evtchn(xen_store_evtchn); + } + + return 0; +} + +int xb_data_to_read(void) +{ + struct xenstore_domain_interface *intf = xen_store_interface; + return (intf->rsp_cons != intf->rsp_prod); +} + +int xb_wait_for_data_to_read(void) +{ + return wait_event_interruptible(xb_waitq, xb_data_to_read()); +} + +int xb_read(void *data, unsigned len) +{ + struct xenstore_domain_interface *intf = xen_store_interface; + XENSTORE_RING_IDX cons, prod; + int rc; + + while (len != 0) { + unsigned int avail; + const char *src; + + rc = xb_wait_for_data_to_read(); + if (rc < 0) + return rc; + + /* Read indexes, then verify. */ + cons = intf->rsp_cons; + prod = intf->rsp_prod; + if (!check_indexes(cons, prod)) { + intf->rsp_cons = intf->rsp_prod = 0; + return -EIO; + } + + src = get_input_chunk(cons, prod, intf->rsp, &avail); + if (avail == 0) + continue; + if (avail > len) + avail = len; + + /* Must read data /after/ reading the producer index. */ + rmb(); + + memcpy(data, src, avail); + data += avail; + len -= avail; + + /* Other side must not see free space until we've copied out */ + mb(); + intf->rsp_cons += avail; + + pr_debug("Finished read of %i bytes (%i to go)\n", avail, len); + + /* Implies mb(): other side will see the updated consumer. */ + notify_remote_via_evtchn(xen_store_evtchn); + } + + return 0; +} + +/** + * xb_init_comms - Set up interrupt handler off store event channel. + */ +int xb_init_comms(void) +{ + struct xenstore_domain_interface *intf = xen_store_interface; + int err; + + if (intf->req_prod != intf->req_cons) + printk(KERN_ERR "XENBUS request ring is not quiescent " + "(%08x:%08x)!\n", intf->req_cons, intf->req_prod); + + if (intf->rsp_prod != intf->rsp_cons) { + printk(KERN_WARNING "XENBUS response ring is not quiescent " + "(%08x:%08x): fixing up\n", + intf->rsp_cons, intf->rsp_prod); + intf->rsp_cons = intf->rsp_prod; + } + + if (xenbus_irq) + unbind_from_irqhandler(xenbus_irq, &xb_waitq); + + err = bind_evtchn_to_irqhandler( + xen_store_evtchn, wake_waiting, + 0, "xenbus", &xb_waitq); + if (err <= 0) { + printk(KERN_ERR "XENBUS request irq failed %i\n", err); + return err; + } + + xenbus_irq = err; + + return 0; +} diff --git a/drivers/xen/xenbus/xenbus_comms.h b/drivers/xen/xenbus/xenbus_comms.h new file mode 100644 index 000000000000..c21db7513736 --- /dev/null +++ b/drivers/xen/xenbus/xenbus_comms.h @@ -0,0 +1,46 @@ +/* + * Private include for xenbus communications. + * + * Copyright (C) 2005 Rusty Russell, IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef _XENBUS_COMMS_H +#define _XENBUS_COMMS_H + +int xs_init(void); +int xb_init_comms(void); + +/* Low level routines. */ +int xb_write(const void *data, unsigned len); +int xb_read(void *data, unsigned len); +int xb_data_to_read(void); +int xb_wait_for_data_to_read(void); +int xs_input_avail(void); +extern struct xenstore_domain_interface *xen_store_interface; +extern int xen_store_evtchn; + +#endif /* _XENBUS_COMMS_H */ diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c new file mode 100644 index 000000000000..0b769f7c4a48 --- /dev/null +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -0,0 +1,935 @@ +/****************************************************************************** + * Talks to Xen Store to figure out what devices we have. + * + * Copyright (C) 2005 Rusty Russell, IBM Corporation + * Copyright (C) 2005 Mike Wray, Hewlett-Packard + * Copyright (C) 2005, 2006 XenSource Ltd + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#define DPRINTK(fmt, args...) \ + pr_debug("xenbus_probe (%s:%d) " fmt ".\n", \ + __func__, __LINE__, ##args) + +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/fcntl.h> +#include <linux/mm.h> +#include <linux/notifier.h> +#include <linux/kthread.h> +#include <linux/mutex.h> +#include <linux/io.h> + +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/xen/hypervisor.h> +#include <xen/xenbus.h> +#include <xen/events.h> +#include <xen/page.h> + +#include "xenbus_comms.h" +#include "xenbus_probe.h" + +int xen_store_evtchn; +struct xenstore_domain_interface *xen_store_interface; +static unsigned long xen_store_mfn; + +static BLOCKING_NOTIFIER_HEAD(xenstore_chain); + +static void wait_for_devices(struct xenbus_driver *xendrv); + +static int xenbus_probe_frontend(const char *type, const char *name); + +static void xenbus_dev_shutdown(struct device *_dev); + +/* If something in array of ids matches this device, return it. */ +static const struct xenbus_device_id * +match_device(const struct xenbus_device_id *arr, struct xenbus_device *dev) +{ + for (; *arr->devicetype != '\0'; arr++) { + if (!strcmp(arr->devicetype, dev->devicetype)) + return arr; + } + return NULL; +} + +int xenbus_match(struct device *_dev, struct device_driver *_drv) +{ + struct xenbus_driver *drv = to_xenbus_driver(_drv); + + if (!drv->ids) + return 0; + + return match_device(drv->ids, to_xenbus_device(_dev)) != NULL; +} + +/* device/<type>/<id> => <type>-<id> */ +static int frontend_bus_id(char bus_id[BUS_ID_SIZE], const char *nodename) +{ + nodename = strchr(nodename, '/'); + if (!nodename || strlen(nodename + 1) >= BUS_ID_SIZE) { + printk(KERN_WARNING "XENBUS: bad frontend %s\n", nodename); + return -EINVAL; + } + + strlcpy(bus_id, nodename + 1, BUS_ID_SIZE); + if (!strchr(bus_id, '/')) { + printk(KERN_WARNING "XENBUS: bus_id %s no slash\n", bus_id); + return -EINVAL; + } + *strchr(bus_id, '/') = '-'; + return 0; +} + + +static void free_otherend_details(struct xenbus_device *dev) +{ + kfree(dev->otherend); + dev->otherend = NULL; +} + + +static void free_otherend_watch(struct xenbus_device *dev) +{ + if (dev->otherend_watch.node) { + unregister_xenbus_watch(&dev->otherend_watch); + kfree(dev->otherend_watch.node); + dev->otherend_watch.node = NULL; + } +} + + +int read_otherend_details(struct xenbus_device *xendev, + char *id_node, char *path_node) +{ + int err = xenbus_gather(XBT_NIL, xendev->nodename, + id_node, "%i", &xendev->otherend_id, + path_node, NULL, &xendev->otherend, + NULL); + if (err) { + xenbus_dev_fatal(xendev, err, + "reading other end details from %s", + xendev->nodename); + return err; + } + if (strlen(xendev->otherend) == 0 || + !xenbus_exists(XBT_NIL, xendev->otherend, "")) { + xenbus_dev_fatal(xendev, -ENOENT, + "unable to read other end from %s. " + "missing or inaccessible.", + xendev->nodename); + free_otherend_details(xendev); + return -ENOENT; + } + + return 0; +} + + +static int read_backend_details(struct xenbus_device *xendev) +{ + return read_otherend_details(xendev, "backend-id", "backend"); +} + + +/* Bus type for frontend drivers. */ +static struct xen_bus_type xenbus_frontend = { + .root = "device", + .levels = 2, /* device/type/<id> */ + .get_bus_id = frontend_bus_id, + .probe = xenbus_probe_frontend, + .bus = { + .name = "xen", + .match = xenbus_match, + .probe = xenbus_dev_probe, + .remove = xenbus_dev_remove, + .shutdown = xenbus_dev_shutdown, + }, +}; + +static void otherend_changed(struct xenbus_watch *watch, + const char **vec, unsigned int len) +{ + struct xenbus_device *dev = + container_of(watch, struct xenbus_device, otherend_watch); + struct xenbus_driver *drv = to_xenbus_driver(dev->dev.driver); + enum xenbus_state state; + + /* Protect us against watches firing on old details when the otherend + details change, say immediately after a resume. */ + if (!dev->otherend || + strncmp(dev->otherend, vec[XS_WATCH_PATH], + strlen(dev->otherend))) { + dev_dbg(&dev->dev, "Ignoring watch at %s", vec[XS_WATCH_PATH]); + return; + } + + state = xenbus_read_driver_state(dev->otherend); + + dev_dbg(&dev->dev, "state is %d, (%s), %s, %s", + state, xenbus_strstate(state), dev->otherend_watch.node, + vec[XS_WATCH_PATH]); + + /* + * Ignore xenbus transitions during shutdown. This prevents us doing + * work that can fail e.g., when the rootfs is gone. + */ + if (system_state > SYSTEM_RUNNING) { + struct xen_bus_type *bus = bus; + bus = container_of(dev->dev.bus, struct xen_bus_type, bus); + /* If we're frontend, drive the state machine to Closed. */ + /* This should cause the backend to release our resources. */ + if ((bus == &xenbus_frontend) && (state == XenbusStateClosing)) + xenbus_frontend_closed(dev); + return; + } + + if (drv->otherend_changed) + drv->otherend_changed(dev, state); +} + + +static int talk_to_otherend(struct xenbus_device *dev) +{ + struct xenbus_driver *drv = to_xenbus_driver(dev->dev.driver); + + free_otherend_watch(dev); + free_otherend_details(dev); + + return drv->read_otherend_details(dev); +} + + +static int watch_otherend(struct xenbus_device *dev) +{ + return xenbus_watch_pathfmt(dev, &dev->otherend_watch, otherend_changed, + "%s/%s", dev->otherend, "state"); +} + + +int xenbus_dev_probe(struct device *_dev) +{ + struct xenbus_device *dev = to_xenbus_device(_dev); + struct xenbus_driver *drv = to_xenbus_driver(_dev->driver); + const struct xenbus_device_id *id; + int err; + + DPRINTK("%s", dev->nodename); + + if (!drv->probe) { + err = -ENODEV; + goto fail; + } + + id = match_device(drv->ids, dev); + if (!id) { + err = -ENODEV; + goto fail; + } + + err = talk_to_otherend(dev); + if (err) { + dev_warn(&dev->dev, "talk_to_otherend on %s failed.\n", + dev->nodename); + return err; + } + + err = drv->probe(dev, id); + if (err) + goto fail; + + err = watch_otherend(dev); + if (err) { + dev_warn(&dev->dev, "watch_otherend on %s failed.\n", + dev->nodename); + return err; + } + + return 0; +fail: + xenbus_dev_error(dev, err, "xenbus_dev_probe on %s", dev->nodename); + xenbus_switch_state(dev, XenbusStateClosed); + return -ENODEV; +} + +int xenbus_dev_remove(struct device *_dev) +{ + struct xenbus_device *dev = to_xenbus_device(_dev); + struct xenbus_driver *drv = to_xenbus_driver(_dev->driver); + + DPRINTK("%s", dev->nodename); + + free_otherend_watch(dev); + free_otherend_details(dev); + + if (drv->remove) + drv->remove(dev); + + xenbus_switch_state(dev, XenbusStateClosed); + return 0; +} + +static void xenbus_dev_shutdown(struct device *_dev) +{ + struct xenbus_device *dev = to_xenbus_device(_dev); + unsigned long timeout = 5*HZ; + + DPRINTK("%s", dev->nodename); + + get_device(&dev->dev); + if (dev->state != XenbusStateConnected) { + printk(KERN_INFO "%s: %s: %s != Connected, skipping\n", __func__, + dev->nodename, xenbus_strstate(dev->state)); + goto out; + } + xenbus_switch_state(dev, XenbusStateClosing); + timeout = wait_for_completion_timeout(&dev->down, timeout); + if (!timeout) + printk(KERN_INFO "%s: %s timeout closing device\n", + __func__, dev->nodename); + out: + put_device(&dev->dev); +} + +int xenbus_register_driver_common(struct xenbus_driver *drv, + struct xen_bus_type *bus, + struct module *owner, + const char *mod_name) +{ + drv->driver.name = drv->name; + drv->driver.bus = &bus->bus; + drv->driver.owner = owner; + drv->driver.mod_name = mod_name; + + return driver_register(&drv->driver); +} + +int __xenbus_register_frontend(struct xenbus_driver *drv, + struct module *owner, const char *mod_name) +{ + int ret; + + drv->read_otherend_details = read_backend_details; + + ret = xenbus_register_driver_common(drv, &xenbus_frontend, + owner, mod_name); + if (ret) + return ret; + + /* If this driver is loaded as a module wait for devices to attach. */ + wait_for_devices(drv); + + return 0; +} +EXPORT_SYMBOL_GPL(__xenbus_register_frontend); + +void xenbus_unregister_driver(struct xenbus_driver *drv) +{ + driver_unregister(&drv->driver); +} +EXPORT_SYMBOL_GPL(xenbus_unregister_driver); + +struct xb_find_info +{ + struct xenbus_device *dev; + const char *nodename; +}; + +static int cmp_dev(struct device *dev, void *data) +{ + struct xenbus_device *xendev = to_xenbus_device(dev); + struct xb_find_info *info = data; + + if (!strcmp(xendev->nodename, info->nodename)) { + info->dev = xendev; + get_device(dev); + return 1; + } + return 0; +} + +struct xenbus_device *xenbus_device_find(const char *nodename, + struct bus_type *bus) +{ + struct xb_find_info info = { .dev = NULL, .nodename = nodename }; + + bus_for_each_dev(bus, NULL, &info, cmp_dev); + return info.dev; +} + +static int cleanup_dev(struct device *dev, void *data) +{ + struct xenbus_device *xendev = to_xenbus_device(dev); + struct xb_find_info *info = data; + int len = strlen(info->nodename); + + DPRINTK("%s", info->nodename); + + /* Match the info->nodename path, or any subdirectory of that path. */ + if (strncmp(xendev->nodename, info->nodename, len)) + return 0; + + /* If the node name is longer, ensure it really is a subdirectory. */ + if ((strlen(xendev->nodename) > len) && (xendev->nodename[len] != '/')) + return 0; + + info->dev = xendev; + get_device(dev); + return 1; +} + +static void xenbus_cleanup_devices(const char *path, struct bus_type *bus) +{ + struct xb_find_info info = { .nodename = path }; + + do { + info.dev = NULL; + bus_for_each_dev(bus, NULL, &info, cleanup_dev); + if (info.dev) { + device_unregister(&info.dev->dev); + put_device(&info.dev->dev); + } + } while (info.dev); +} + +static void xenbus_dev_release(struct device *dev) +{ + if (dev) + kfree(to_xenbus_device(dev)); +} + +static ssize_t xendev_show_nodename(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%s\n", to_xenbus_device(dev)->nodename); +} +DEVICE_ATTR(nodename, S_IRUSR | S_IRGRP | S_IROTH, xendev_show_nodename, NULL); + +static ssize_t xendev_show_devtype(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%s\n", to_xenbus_device(dev)->devicetype); +} +DEVICE_ATTR(devtype, S_IRUSR | S_IRGRP | S_IROTH, xendev_show_devtype, NULL); + + +int xenbus_probe_node(struct xen_bus_type *bus, + const char *type, + const char *nodename) +{ + int err; + struct xenbus_device *xendev; + size_t stringlen; + char *tmpstring; + + enum xenbus_state state = xenbus_read_driver_state(nodename); + + if (state != XenbusStateInitialising) { + /* Device is not new, so ignore it. This can happen if a + device is going away after switching to Closed. */ + return 0; + } + + stringlen = strlen(nodename) + 1 + strlen(type) + 1; + xendev = kzalloc(sizeof(*xendev) + stringlen, GFP_KERNEL); + if (!xendev) + return -ENOMEM; + + xendev->state = XenbusStateInitialising; + + /* Copy the strings into the extra space. */ + + tmpstring = (char *)(xendev + 1); + strcpy(tmpstring, nodename); + xendev->nodename = tmpstring; + + tmpstring += strlen(tmpstring) + 1; + strcpy(tmpstring, type); + xendev->devicetype = tmpstring; + init_completion(&xendev->down); + + xendev->dev.bus = &bus->bus; + xendev->dev.release = xenbus_dev_release; + + err = bus->get_bus_id(xendev->dev.bus_id, xendev->nodename); + if (err) + goto fail; + + /* Register with generic device framework. */ + err = device_register(&xendev->dev); + if (err) + goto fail; + + err = device_create_file(&xendev->dev, &dev_attr_nodename); + if (err) + goto fail_unregister; + + err = device_create_file(&xendev->dev, &dev_attr_devtype); + if (err) + goto fail_remove_file; + + return 0; +fail_remove_file: + device_remove_file(&xendev->dev, &dev_attr_nodename); +fail_unregister: + device_unregister(&xendev->dev); +fail: + kfree(xendev); + return err; +} + +/* device/<typename>/<name> */ +static int xenbus_probe_frontend(const char *type, const char *name) +{ + char *nodename; + int err; + + nodename = kasprintf(GFP_KERNEL, "%s/%s/%s", + xenbus_frontend.root, type, name); + if (!nodename) + return -ENOMEM; + + DPRINTK("%s", nodename); + + err = xenbus_probe_node(&xenbus_frontend, type, nodename); + kfree(nodename); + return err; +} + +static int xenbus_probe_device_type(struct xen_bus_type *bus, const char *type) +{ + int err = 0; + char **dir; + unsigned int dir_n = 0; + int i; + + dir = xenbus_directory(XBT_NIL, bus->root, type, &dir_n); + if (IS_ERR(dir)) + return PTR_ERR(dir); + + for (i = 0; i < dir_n; i++) { + err = bus->probe(type, dir[i]); + if (err) + break; + } + kfree(dir); + return err; +} + +int xenbus_probe_devices(struct xen_bus_type *bus) +{ + int err = 0; + char **dir; + unsigned int i, dir_n; + + dir = xenbus_directory(XBT_NIL, bus->root, "", &dir_n); + if (IS_ERR(dir)) + return PTR_ERR(dir); + + for (i = 0; i < dir_n; i++) { + err = xenbus_probe_device_type(bus, dir[i]); + if (err) + break; + } + kfree(dir); + return err; +} + +static unsigned int char_count(const char *str, char c) +{ + unsigned int i, ret = 0; + + for (i = 0; str[i]; i++) + if (str[i] == c) + ret++; + return ret; +} + +static int strsep_len(const char *str, char c, unsigned int len) +{ + unsigned int i; + + for (i = 0; str[i]; i++) + if (str[i] == c) { + if (len == 0) + return i; + len--; + } + return (len == 0) ? i : -ERANGE; +} + +void xenbus_dev_changed(const char *node, struct xen_bus_type *bus) +{ + int exists, rootlen; + struct xenbus_device *dev; + char type[BUS_ID_SIZE]; + const char *p, *root; + + if (char_count(node, '/') < 2) + return; + + exists = xenbus_exists(XBT_NIL, node, ""); + if (!exists) { + xenbus_cleanup_devices(node, &bus->bus); + return; + } + + /* backend/<type>/... or device/<type>/... */ + p = strchr(node, '/') + 1; + snprintf(type, BUS_ID_SIZE, "%.*s", (int)strcspn(p, "/"), p); + type[BUS_ID_SIZE-1] = '\0'; + + rootlen = strsep_len(node, '/', bus->levels); + if (rootlen < 0) + return; + root = kasprintf(GFP_KERNEL, "%.*s", rootlen, node); + if (!root) + return; + + dev = xenbus_device_find(root, &bus->bus); + if (!dev) + xenbus_probe_node(bus, type, root); + else + put_device(&dev->dev); + + kfree(root); +} + +static void frontend_changed(struct xenbus_watch *watch, + const char **vec, unsigned int len) +{ + DPRINTK(""); + + xenbus_dev_changed(vec[XS_WATCH_PATH], &xenbus_frontend); +} + +/* We watch for devices appearing and vanishing. */ +static struct xenbus_watch fe_watch = { + .node = "device", + .callback = frontend_changed, +}; + +static int suspend_dev(struct device *dev, void *data) +{ + int err = 0; + struct xenbus_driver *drv; + struct xenbus_device *xdev; + + DPRINTK(""); + + if (dev->driver == NULL) + return 0; + drv = to_xenbus_driver(dev->driver); + xdev = container_of(dev, struct xenbus_device, dev); + if (drv->suspend) + err = drv->suspend(xdev); + if (err) + printk(KERN_WARNING + "xenbus: suspend %s failed: %i\n", dev->bus_id, err); + return 0; +} + +static int suspend_cancel_dev(struct device *dev, void *data) +{ + int err = 0; + struct xenbus_driver *drv; + struct xenbus_device *xdev; + + DPRINTK(""); + + if (dev->driver == NULL) + return 0; + drv = to_xenbus_driver(dev->driver); + xdev = container_of(dev, struct xenbus_device, dev); + if (drv->suspend_cancel) + err = drv->suspend_cancel(xdev); + if (err) + printk(KERN_WARNING + "xenbus: suspend_cancel %s failed: %i\n", + dev->bus_id, err); + return 0; +} + +static int resume_dev(struct device *dev, void *data) +{ + int err; + struct xenbus_driver *drv; + struct xenbus_device *xdev; + + DPRINTK(""); + + if (dev->driver == NULL) + return 0; + + drv = to_xenbus_driver(dev->driver); + xdev = container_of(dev, struct xenbus_device, dev); + + err = talk_to_otherend(xdev); + if (err) { + printk(KERN_WARNING + "xenbus: resume (talk_to_otherend) %s failed: %i\n", + dev->bus_id, err); + return err; + } + + xdev->state = XenbusStateInitialising; + + if (drv->resume) { + err = drv->resume(xdev); + if (err) { + printk(KERN_WARNING + "xenbus: resume %s failed: %i\n", + dev->bus_id, err); + return err; + } + } + + err = watch_otherend(xdev); + if (err) { + printk(KERN_WARNING + "xenbus_probe: resume (watch_otherend) %s failed: " + "%d.\n", dev->bus_id, err); + return err; + } + + return 0; +} + +void xenbus_suspend(void) +{ + DPRINTK(""); + + bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, suspend_dev); + xenbus_backend_suspend(suspend_dev); + xs_suspend(); +} +EXPORT_SYMBOL_GPL(xenbus_suspend); + +void xenbus_resume(void) +{ + xb_init_comms(); + xs_resume(); + bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, resume_dev); + xenbus_backend_resume(resume_dev); +} +EXPORT_SYMBOL_GPL(xenbus_resume); + +void xenbus_suspend_cancel(void) +{ + xs_suspend_cancel(); + bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, suspend_cancel_dev); + xenbus_backend_resume(suspend_cancel_dev); +} +EXPORT_SYMBOL_GPL(xenbus_suspend_cancel); + +/* A flag to determine if xenstored is 'ready' (i.e. has started) */ +int xenstored_ready = 0; + + +int register_xenstore_notifier(struct notifier_block *nb) +{ + int ret = 0; + + if (xenstored_ready > 0) + ret = nb->notifier_call(nb, 0, NULL); + else + blocking_notifier_chain_register(&xenstore_chain, nb); + + return ret; +} +EXPORT_SYMBOL_GPL(register_xenstore_notifier); + +void unregister_xenstore_notifier(struct notifier_block *nb) +{ + blocking_notifier_chain_unregister(&xenstore_chain, nb); +} +EXPORT_SYMBOL_GPL(unregister_xenstore_notifier); + +void xenbus_probe(struct work_struct *unused) +{ + BUG_ON((xenstored_ready <= 0)); + + /* Enumerate devices in xenstore and watch for changes. */ + xenbus_probe_devices(&xenbus_frontend); + register_xenbus_watch(&fe_watch); + xenbus_backend_probe_and_watch(); + + /* Notify others that xenstore is up */ + blocking_notifier_call_chain(&xenstore_chain, 0, NULL); +} + +static int __init xenbus_probe_init(void) +{ + int err = 0; + + DPRINTK(""); + + err = -ENODEV; + if (!is_running_on_xen()) + goto out_error; + + /* Register ourselves with the kernel bus subsystem */ + err = bus_register(&xenbus_frontend.bus); + if (err) + goto out_error; + + err = xenbus_backend_bus_register(); + if (err) + goto out_unreg_front; + + /* + * Domain0 doesn't have a store_evtchn or store_mfn yet. + */ + if (is_initial_xendomain()) { + /* dom0 not yet supported */ + } else { + xenstored_ready = 1; + xen_store_evtchn = xen_start_info->store_evtchn; + xen_store_mfn = xen_start_info->store_mfn; + } + xen_store_interface = mfn_to_virt(xen_store_mfn); + + /* Initialize the interface to xenstore. */ + err = xs_init(); + if (err) { + printk(KERN_WARNING + "XENBUS: Error initializing xenstore comms: %i\n", err); + goto out_unreg_back; + } + + if (!is_initial_xendomain()) + xenbus_probe(NULL); + + return 0; + + out_unreg_back: + xenbus_backend_bus_unregister(); + + out_unreg_front: + bus_unregister(&xenbus_frontend.bus); + + out_error: + return err; +} + +postcore_initcall(xenbus_probe_init); + +MODULE_LICENSE("GPL"); + +static int is_disconnected_device(struct device *dev, void *data) +{ + struct xenbus_device *xendev = to_xenbus_device(dev); + struct device_driver *drv = data; + + /* + * A device with no driver will never connect. We care only about + * devices which should currently be in the process of connecting. + */ + if (!dev->driver) + return 0; + + /* Is this search limited to a particular driver? */ + if (drv && (dev->driver != drv)) + return 0; + + return (xendev->state != XenbusStateConnected); +} + +static int exists_disconnected_device(struct device_driver *drv) +{ + return bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, + is_disconnected_device); +} + +static int print_device_status(struct device *dev, void *data) +{ + struct xenbus_device *xendev = to_xenbus_device(dev); + struct device_driver *drv = data; + + /* Is this operation limited to a particular driver? */ + if (drv && (dev->driver != drv)) + return 0; + + if (!dev->driver) { + /* Information only: is this too noisy? */ + printk(KERN_INFO "XENBUS: Device with no driver: %s\n", + xendev->nodename); + } else if (xendev->state != XenbusStateConnected) { + printk(KERN_WARNING "XENBUS: Timeout connecting " + "to device: %s (state %d)\n", + xendev->nodename, xendev->state); + } + + return 0; +} + +/* We only wait for device setup after most initcalls have run. */ +static int ready_to_wait_for_devices; + +/* + * On a 10 second timeout, wait for all devices currently configured. We need + * to do this to guarantee that the filesystems and / or network devices + * needed for boot are available, before we can allow the boot to proceed. + * + * This needs to be on a late_initcall, to happen after the frontend device + * drivers have been initialised, but before the root fs is mounted. + * + * A possible improvement here would be to have the tools add a per-device + * flag to the store entry, indicating whether it is needed at boot time. + * This would allow people who knew what they were doing to accelerate their + * boot slightly, but of course needs tools or manual intervention to set up + * those flags correctly. + */ +static void wait_for_devices(struct xenbus_driver *xendrv) +{ + unsigned long timeout = jiffies + 10*HZ; + struct device_driver *drv = xendrv ? &xendrv->driver : NULL; + + if (!ready_to_wait_for_devices || !is_running_on_xen()) + return; + + while (exists_disconnected_device(drv)) { + if (time_after(jiffies, timeout)) + break; + schedule_timeout_interruptible(HZ/10); + } + + bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, + print_device_status); +} + +#ifndef MODULE +static int __init boot_wait_for_devices(void) +{ + ready_to_wait_for_devices = 1; + wait_for_devices(NULL); + return 0; +} + +late_initcall(boot_wait_for_devices); +#endif diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h new file mode 100644 index 000000000000..e09b19415a40 --- /dev/null +++ b/drivers/xen/xenbus/xenbus_probe.h @@ -0,0 +1,74 @@ +/****************************************************************************** + * xenbus_probe.h + * + * Talks to Xen Store to figure out what devices we have. + * + * Copyright (C) 2005 Rusty Russell, IBM Corporation + * Copyright (C) 2005 XenSource Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef _XENBUS_PROBE_H +#define _XENBUS_PROBE_H + +#ifdef CONFIG_XEN_BACKEND +extern void xenbus_backend_suspend(int (*fn)(struct device *, void *)); +extern void xenbus_backend_resume(int (*fn)(struct device *, void *)); +extern void xenbus_backend_probe_and_watch(void); +extern int xenbus_backend_bus_register(void); +extern void xenbus_backend_bus_unregister(void); +#else +static inline void xenbus_backend_suspend(int (*fn)(struct device *, void *)) {} +static inline void xenbus_backend_resume(int (*fn)(struct device *, void *)) {} +static inline void xenbus_backend_probe_and_watch(void) {} +static inline int xenbus_backend_bus_register(void) { return 0; } +static inline void xenbus_backend_bus_unregister(void) {} +#endif + +struct xen_bus_type +{ + char *root; + unsigned int levels; + int (*get_bus_id)(char bus_id[BUS_ID_SIZE], const char *nodename); + int (*probe)(const char *type, const char *dir); + struct bus_type bus; +}; + +extern int xenbus_match(struct device *_dev, struct device_driver *_drv); +extern int xenbus_dev_probe(struct device *_dev); +extern int xenbus_dev_remove(struct device *_dev); +extern int xenbus_register_driver_common(struct xenbus_driver *drv, + struct xen_bus_type *bus, + struct module *owner, + const char *mod_name); +extern int xenbus_probe_node(struct xen_bus_type *bus, + const char *type, + const char *nodename); +extern int xenbus_probe_devices(struct xen_bus_type *bus); + +extern void xenbus_dev_changed(const char *node, struct xen_bus_type *bus); + +#endif diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c new file mode 100644 index 000000000000..9e943fbce81b --- /dev/null +++ b/drivers/xen/xenbus/xenbus_xs.c @@ -0,0 +1,861 @@ +/****************************************************************************** + * xenbus_xs.c + * + * This is the kernel equivalent of the "xs" library. We don't need everything + * and we use xenbus_comms for communication. + * + * Copyright (C) 2005 Rusty Russell, IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <linux/unistd.h> +#include <linux/errno.h> +#include <linux/types.h> +#include <linux/uio.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/fcntl.h> +#include <linux/kthread.h> +#include <linux/rwsem.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <xen/xenbus.h> +#include "xenbus_comms.h" + +struct xs_stored_msg { + struct list_head list; + + struct xsd_sockmsg hdr; + + union { + /* Queued replies. */ + struct { + char *body; + } reply; + + /* Queued watch events. */ + struct { + struct xenbus_watch *handle; + char **vec; + unsigned int vec_size; + } watch; + } u; +}; + +struct xs_handle { + /* A list of replies. Currently only one will ever be outstanding. */ + struct list_head reply_list; + spinlock_t reply_lock; + wait_queue_head_t reply_waitq; + + /* + * Mutex ordering: transaction_mutex -> watch_mutex -> request_mutex. + * response_mutex is never taken simultaneously with the other three. + */ + + /* One request at a time. */ + struct mutex request_mutex; + + /* Protect xenbus reader thread against save/restore. */ + struct mutex response_mutex; + + /* Protect transactions against save/restore. */ + struct rw_semaphore transaction_mutex; + + /* Protect watch (de)register against save/restore. */ + struct rw_semaphore watch_mutex; +}; + +static struct xs_handle xs_state; + +/* List of registered watches, and a lock to protect it. */ +static LIST_HEAD(watches); +static DEFINE_SPINLOCK(watches_lock); + +/* List of pending watch callback events, and a lock to protect it. */ +static LIST_HEAD(watch_events); +static DEFINE_SPINLOCK(watch_events_lock); + +/* + * Details of the xenwatch callback kernel thread. The thread waits on the + * watch_events_waitq for work to do (queued on watch_events list). When it + * wakes up it acquires the xenwatch_mutex before reading the list and + * carrying out work. + */ +static pid_t xenwatch_pid; +static DEFINE_MUTEX(xenwatch_mutex); +static DECLARE_WAIT_QUEUE_HEAD(watch_events_waitq); + +static int get_error(const char *errorstring) +{ + unsigned int i; + + for (i = 0; strcmp(errorstring, xsd_errors[i].errstring) != 0; i++) { + if (i == ARRAY_SIZE(xsd_errors) - 1) { + printk(KERN_WARNING + "XENBUS xen store gave: unknown error %s", + errorstring); + return EINVAL; + } + } + return xsd_errors[i].errnum; +} + +static void *read_reply(enum xsd_sockmsg_type *type, unsigned int *len) +{ + struct xs_stored_msg *msg; + char *body; + + spin_lock(&xs_state.reply_lock); + + while (list_empty(&xs_state.reply_list)) { + spin_unlock(&xs_state.reply_lock); + /* XXX FIXME: Avoid synchronous wait for response here. */ + wait_event(xs_state.reply_waitq, + !list_empty(&xs_state.reply_list)); + spin_lock(&xs_state.reply_lock); + } + + msg = list_entry(xs_state.reply_list.next, + struct xs_stored_msg, list); + list_del(&msg->list); + + spin_unlock(&xs_state.reply_lock); + + *type = msg->hdr.type; + if (len) + *len = msg->hdr.len; + body = msg->u.reply.body; + + kfree(msg); + + return body; +} + +void *xenbus_dev_request_and_reply(struct xsd_sockmsg *msg) +{ + void *ret; + struct xsd_sockmsg req_msg = *msg; + int err; + + if (req_msg.type == XS_TRANSACTION_START) + down_read(&xs_state.transaction_mutex); + + mutex_lock(&xs_state.request_mutex); + + err = xb_write(msg, sizeof(*msg) + msg->len); + if (err) { + msg->type = XS_ERROR; + ret = ERR_PTR(err); + } else + ret = read_reply(&msg->type, &msg->len); + + mutex_unlock(&xs_state.request_mutex); + + if ((msg->type == XS_TRANSACTION_END) || + ((req_msg.type == XS_TRANSACTION_START) && + (msg->type == XS_ERROR))) + up_read(&xs_state.transaction_mutex); + + return ret; +} + +/* Send message to xs, get kmalloc'ed reply. ERR_PTR() on error. */ +static void *xs_talkv(struct xenbus_transaction t, + enum xsd_sockmsg_type type, + const struct kvec *iovec, + unsigned int num_vecs, + unsigned int *len) +{ + struct xsd_sockmsg msg; + void *ret = NULL; + unsigned int i; + int err; + + msg.tx_id = t.id; + msg.req_id = 0; + msg.type = type; + msg.len = 0; + for (i = 0; i < num_vecs; i++) + msg.len += iovec[i].iov_len; + + mutex_lock(&xs_state.request_mutex); + + err = xb_write(&msg, sizeof(msg)); + if (err) { + mutex_unlock(&xs_state.request_mutex); + return ERR_PTR(err); + } + + for (i = 0; i < num_vecs; i++) { + err = xb_write(iovec[i].iov_base, iovec[i].iov_len); + if (err) { + mutex_unlock(&xs_state.request_mutex); + return ERR_PTR(err); + } + } + + ret = read_reply(&msg.type, len); + + mutex_unlock(&xs_state.request_mutex); + + if (IS_ERR(ret)) + return ret; + + if (msg.type == XS_ERROR) { + err = get_error(ret); + kfree(ret); + return ERR_PTR(-err); + } + + if (msg.type != type) { + if (printk_ratelimit()) + printk(KERN_WARNING + "XENBUS unexpected type [%d], expected [%d]\n", + msg.type, type); + kfree(ret); + return ERR_PTR(-EINVAL); + } + return ret; +} + +/* Simplified version of xs_talkv: single message. */ +static void *xs_single(struct xenbus_transaction t, + enum xsd_sockmsg_type type, + const char *string, + unsigned int *len) +{ + struct kvec iovec; + + iovec.iov_base = (void *)string; + iovec.iov_len = strlen(string) + 1; + return xs_talkv(t, type, &iovec, 1, len); +} + +/* Many commands only need an ack, don't care what it says. */ +static int xs_error(char *reply) +{ + if (IS_ERR(reply)) + return PTR_ERR(reply); + kfree(reply); + return 0; +} + +static unsigned int count_strings(const char *strings, unsigned int len) +{ + unsigned int num; + const char *p; + + for (p = strings, num = 0; p < strings + len; p += strlen(p) + 1) + num++; + + return num; +} + +/* Return the path to dir with /name appended. Buffer must be kfree()'ed. */ +static char *join(const char *dir, const char *name) +{ + char *buffer; + + if (strlen(name) == 0) + buffer = kasprintf(GFP_KERNEL, "%s", dir); + else + buffer = kasprintf(GFP_KERNEL, "%s/%s", dir, name); + return (!buffer) ? ERR_PTR(-ENOMEM) : buffer; +} + +static char **split(char *strings, unsigned int len, unsigned int *num) +{ + char *p, **ret; + + /* Count the strings. */ + *num = count_strings(strings, len); + + /* Transfer to one big alloc for easy freeing. */ + ret = kmalloc(*num * sizeof(char *) + len, GFP_KERNEL); + if (!ret) { + kfree(strings); + return ERR_PTR(-ENOMEM); + } + memcpy(&ret[*num], strings, len); + kfree(strings); + + strings = (char *)&ret[*num]; + for (p = strings, *num = 0; p < strings + len; p += strlen(p) + 1) + ret[(*num)++] = p; + + return ret; +} + +char **xenbus_directory(struct xenbus_transaction t, + const char *dir, const char *node, unsigned int *num) +{ + char *strings, *path; + unsigned int len; + + path = join(dir, node); + if (IS_ERR(path)) + return (char **)path; + + strings = xs_single(t, XS_DIRECTORY, path, &len); + kfree(path); + if (IS_ERR(strings)) + return (char **)strings; + + return split(strings, len, num); +} +EXPORT_SYMBOL_GPL(xenbus_directory); + +/* Check if a path exists. Return 1 if it does. */ +int xenbus_exists(struct xenbus_transaction t, + const char *dir, const char *node) +{ + char **d; + int dir_n; + + d = xenbus_directory(t, dir, node, &dir_n); + if (IS_ERR(d)) + return 0; + kfree(d); + return 1; +} +EXPORT_SYMBOL_GPL(xenbus_exists); + +/* Get the value of a single file. + * Returns a kmalloced value: call free() on it after use. + * len indicates length in bytes. + */ +void *xenbus_read(struct xenbus_transaction t, + const char *dir, const char *node, unsigned int *len) +{ + char *path; + void *ret; + + path = join(dir, node); + if (IS_ERR(path)) + return (void *)path; + + ret = xs_single(t, XS_READ, path, len); + kfree(path); + return ret; +} +EXPORT_SYMBOL_GPL(xenbus_read); + +/* Write the value of a single file. + * Returns -err on failure. + */ +int xenbus_write(struct xenbus_transaction t, + const char *dir, const char *node, const char *string) +{ + const char *path; + struct kvec iovec[2]; + int ret; + + path = join(dir, node); + if (IS_ERR(path)) + return PTR_ERR(path); + + iovec[0].iov_base = (void *)path; + iovec[0].iov_len = strlen(path) + 1; + iovec[1].iov_base = (void *)string; + iovec[1].iov_len = strlen(string); + + ret = xs_error(xs_talkv(t, XS_WRITE, iovec, ARRAY_SIZE(iovec), NULL)); + kfree(path); + return ret; +} +EXPORT_SYMBOL_GPL(xenbus_write); + +/* Create a new directory. */ +int xenbus_mkdir(struct xenbus_transaction t, + const char *dir, const char *node) +{ + char *path; + int ret; + + path = join(dir, node); + if (IS_ERR(path)) + return PTR_ERR(path); + + ret = xs_error(xs_single(t, XS_MKDIR, path, NULL)); + kfree(path); + return ret; +} +EXPORT_SYMBOL_GPL(xenbus_mkdir); + +/* Destroy a file or directory (directories must be empty). */ +int xenbus_rm(struct xenbus_transaction t, const char *dir, const char *node) +{ + char *path; + int ret; + + path = join(dir, node); + if (IS_ERR(path)) + return PTR_ERR(path); + + ret = xs_error(xs_single(t, XS_RM, path, NULL)); + kfree(path); + return ret; +} +EXPORT_SYMBOL_GPL(xenbus_rm); + +/* Start a transaction: changes by others will not be seen during this + * transaction, and changes will not be visible to others until end. + */ +int xenbus_transaction_start(struct xenbus_transaction *t) +{ + char *id_str; + + down_read(&xs_state.transaction_mutex); + + id_str = xs_single(XBT_NIL, XS_TRANSACTION_START, "", NULL); + if (IS_ERR(id_str)) { + up_read(&xs_state.transaction_mutex); + return PTR_ERR(id_str); + } + + t->id = simple_strtoul(id_str, NULL, 0); + kfree(id_str); + return 0; +} +EXPORT_SYMBOL_GPL(xenbus_transaction_start); + +/* End a transaction. + * If abandon is true, transaction is discarded instead of committed. + */ +int xenbus_transaction_end(struct xenbus_transaction t, int abort) +{ + char abortstr[2]; + int err; + + if (abort) + strcpy(abortstr, "F"); + else + strcpy(abortstr, "T"); + + err = xs_error(xs_single(t, XS_TRANSACTION_END, abortstr, NULL)); + + up_read(&xs_state.transaction_mutex); + + return err; +} +EXPORT_SYMBOL_GPL(xenbus_transaction_end); + +/* Single read and scanf: returns -errno or num scanned. */ +int xenbus_scanf(struct xenbus_transaction t, + const char *dir, const char *node, const char *fmt, ...) +{ + va_list ap; + int ret; + char *val; + + val = xenbus_read(t, dir, node, NULL); + if (IS_ERR(val)) + return PTR_ERR(val); + + va_start(ap, fmt); + ret = vsscanf(val, fmt, ap); + va_end(ap); + kfree(val); + /* Distinctive errno. */ + if (ret == 0) + return -ERANGE; + return ret; +} +EXPORT_SYMBOL_GPL(xenbus_scanf); + +/* Single printf and write: returns -errno or 0. */ +int xenbus_printf(struct xenbus_transaction t, + const char *dir, const char *node, const char *fmt, ...) +{ + va_list ap; + int ret; +#define PRINTF_BUFFER_SIZE 4096 + char *printf_buffer; + + printf_buffer = kmalloc(PRINTF_BUFFER_SIZE, GFP_KERNEL); + if (printf_buffer == NULL) + return -ENOMEM; + + va_start(ap, fmt); + ret = vsnprintf(printf_buffer, PRINTF_BUFFER_SIZE, fmt, ap); + va_end(ap); + + BUG_ON(ret > PRINTF_BUFFER_SIZE-1); + ret = xenbus_write(t, dir, node, printf_buffer); + + kfree(printf_buffer); + + return ret; +} +EXPORT_SYMBOL_GPL(xenbus_printf); + +/* Takes tuples of names, scanf-style args, and void **, NULL terminated. */ +int xenbus_gather(struct xenbus_transaction t, const char *dir, ...) +{ + va_list ap; + const char *name; + int ret = 0; + + va_start(ap, dir); + while (ret == 0 && (name = va_arg(ap, char *)) != NULL) { + const char *fmt = va_arg(ap, char *); + void *result = va_arg(ap, void *); + char *p; + + p = xenbus_read(t, dir, name, NULL); + if (IS_ERR(p)) { + ret = PTR_ERR(p); + break; + } + if (fmt) { + if (sscanf(p, fmt, result) == 0) + ret = -EINVAL; + kfree(p); + } else + *(char **)result = p; + } + va_end(ap); + return ret; +} +EXPORT_SYMBOL_GPL(xenbus_gather); + +static int xs_watch(const char *path, const char *token) +{ + struct kvec iov[2]; + + iov[0].iov_base = (void *)path; + iov[0].iov_len = strlen(path) + 1; + iov[1].iov_base = (void *)token; + iov[1].iov_len = strlen(token) + 1; + + return xs_error(xs_talkv(XBT_NIL, XS_WATCH, iov, + ARRAY_SIZE(iov), NULL)); +} + +static int xs_unwatch(const char *path, const char *token) +{ + struct kvec iov[2]; + + iov[0].iov_base = (char *)path; + iov[0].iov_len = strlen(path) + 1; + iov[1].iov_base = (char *)token; + iov[1].iov_len = strlen(token) + 1; + + return xs_error(xs_talkv(XBT_NIL, XS_UNWATCH, iov, + ARRAY_SIZE(iov), NULL)); +} + +static struct xenbus_watch *find_watch(const char *token) +{ + struct xenbus_watch *i, *cmp; + + cmp = (void *)simple_strtoul(token, NULL, 16); + + list_for_each_entry(i, &watches, list) + if (i == cmp) + return i; + + return NULL; +} + +/* Register callback to watch this node. */ +int register_xenbus_watch(struct xenbus_watch *watch) +{ + /* Pointer in ascii is the token. */ + char token[sizeof(watch) * 2 + 1]; + int err; + + sprintf(token, "%lX", (long)watch); + + down_read(&xs_state.watch_mutex); + + spin_lock(&watches_lock); + BUG_ON(find_watch(token)); + list_add(&watch->list, &watches); + spin_unlock(&watches_lock); + + err = xs_watch(watch->node, token); + + /* Ignore errors due to multiple registration. */ + if ((err != 0) && (err != -EEXIST)) { + spin_lock(&watches_lock); + list_del(&watch->list); + spin_unlock(&watches_lock); + } + + up_read(&xs_state.watch_mutex); + + return err; +} +EXPORT_SYMBOL_GPL(register_xenbus_watch); + +void unregister_xenbus_watch(struct xenbus_watch *watch) +{ + struct xs_stored_msg *msg, *tmp; + char token[sizeof(watch) * 2 + 1]; + int err; + + sprintf(token, "%lX", (long)watch); + + down_read(&xs_state.watch_mutex); + + spin_lock(&watches_lock); + BUG_ON(!find_watch(token)); + list_del(&watch->list); + spin_unlock(&watches_lock); + + err = xs_unwatch(watch->node, token); + if (err) + printk(KERN_WARNING + "XENBUS Failed to release watch %s: %i\n", + watch->node, err); + + up_read(&xs_state.watch_mutex); + + /* Make sure there are no callbacks running currently (unless + its us) */ + if (current->pid != xenwatch_pid) + mutex_lock(&xenwatch_mutex); + + /* Cancel pending watch events. */ + spin_lock(&watch_events_lock); + list_for_each_entry_safe(msg, tmp, &watch_events, list) { + if (msg->u.watch.handle != watch) + continue; + list_del(&msg->list); + kfree(msg->u.watch.vec); + kfree(msg); + } + spin_unlock(&watch_events_lock); + + if (current->pid != xenwatch_pid) + mutex_unlock(&xenwatch_mutex); +} +EXPORT_SYMBOL_GPL(unregister_xenbus_watch); + +void xs_suspend(void) +{ + down_write(&xs_state.transaction_mutex); + down_write(&xs_state.watch_mutex); + mutex_lock(&xs_state.request_mutex); + mutex_lock(&xs_state.response_mutex); +} + +void xs_resume(void) +{ + struct xenbus_watch *watch; + char token[sizeof(watch) * 2 + 1]; + + mutex_unlock(&xs_state.response_mutex); + mutex_unlock(&xs_state.request_mutex); + up_write(&xs_state.transaction_mutex); + + /* No need for watches_lock: the watch_mutex is sufficient. */ + list_for_each_entry(watch, &watches, list) { + sprintf(token, "%lX", (long)watch); + xs_watch(watch->node, token); + } + + up_write(&xs_state.watch_mutex); +} + +void xs_suspend_cancel(void) +{ + mutex_unlock(&xs_state.response_mutex); + mutex_unlock(&xs_state.request_mutex); + up_write(&xs_state.watch_mutex); + up_write(&xs_state.transaction_mutex); +} + +static int xenwatch_thread(void *unused) +{ + struct list_head *ent; + struct xs_stored_msg *msg; + + for (;;) { + wait_event_interruptible(watch_events_waitq, + !list_empty(&watch_events)); + + if (kthread_should_stop()) + break; + + mutex_lock(&xenwatch_mutex); + + spin_lock(&watch_events_lock); + ent = watch_events.next; + if (ent != &watch_events) + list_del(ent); + spin_unlock(&watch_events_lock); + + if (ent != &watch_events) { + msg = list_entry(ent, struct xs_stored_msg, list); + msg->u.watch.handle->callback( + msg->u.watch.handle, + (const char **)msg->u.watch.vec, + msg->u.watch.vec_size); + kfree(msg->u.watch.vec); + kfree(msg); + } + + mutex_unlock(&xenwatch_mutex); + } + + return 0; +} + +static int process_msg(void) +{ + struct xs_stored_msg *msg; + char *body; + int err; + + /* + * We must disallow save/restore while reading a xenstore message. + * A partial read across s/r leaves us out of sync with xenstored. + */ + for (;;) { + err = xb_wait_for_data_to_read(); + if (err) + return err; + mutex_lock(&xs_state.response_mutex); + if (xb_data_to_read()) + break; + /* We raced with save/restore: pending data 'disappeared'. */ + mutex_unlock(&xs_state.response_mutex); + } + + + msg = kmalloc(sizeof(*msg), GFP_KERNEL); + if (msg == NULL) { + err = -ENOMEM; + goto out; + } + + err = xb_read(&msg->hdr, sizeof(msg->hdr)); + if (err) { + kfree(msg); + goto out; + } + + body = kmalloc(msg->hdr.len + 1, GFP_KERNEL); + if (body == NULL) { + kfree(msg); + err = -ENOMEM; + goto out; + } + + err = xb_read(body, msg->hdr.len); + if (err) { + kfree(body); + kfree(msg); + goto out; + } + body[msg->hdr.len] = '\0'; + + if (msg->hdr.type == XS_WATCH_EVENT) { + msg->u.watch.vec = split(body, msg->hdr.len, + &msg->u.watch.vec_size); + if (IS_ERR(msg->u.watch.vec)) { + kfree(msg); + err = PTR_ERR(msg->u.watch.vec); + goto out; + } + + spin_lock(&watches_lock); + msg->u.watch.handle = find_watch( + msg->u.watch.vec[XS_WATCH_TOKEN]); + if (msg->u.watch.handle != NULL) { + spin_lock(&watch_events_lock); + list_add_tail(&msg->list, &watch_events); + wake_up(&watch_events_waitq); + spin_unlock(&watch_events_lock); + } else { + kfree(msg->u.watch.vec); + kfree(msg); + } + spin_unlock(&watches_lock); + } else { + msg->u.reply.body = body; + spin_lock(&xs_state.reply_lock); + list_add_tail(&msg->list, &xs_state.reply_list); + spin_unlock(&xs_state.reply_lock); + wake_up(&xs_state.reply_waitq); + } + + out: + mutex_unlock(&xs_state.response_mutex); + return err; +} + +static int xenbus_thread(void *unused) +{ + int err; + + for (;;) { + err = process_msg(); + if (err) + printk(KERN_WARNING "XENBUS error %d while reading " + "message\n", err); + if (kthread_should_stop()) + break; + } + + return 0; +} + +int xs_init(void) +{ + int err; + struct task_struct *task; + + INIT_LIST_HEAD(&xs_state.reply_list); + spin_lock_init(&xs_state.reply_lock); + init_waitqueue_head(&xs_state.reply_waitq); + + mutex_init(&xs_state.request_mutex); + mutex_init(&xs_state.response_mutex); + init_rwsem(&xs_state.transaction_mutex); + init_rwsem(&xs_state.watch_mutex); + + /* Initialize the shared memory rings to talk to xenstored */ + err = xb_init_comms(); + if (err) + return err; + + task = kthread_run(xenwatch_thread, NULL, "xenwatch"); + if (IS_ERR(task)) + return PTR_ERR(task); + xenwatch_pid = task->pid; + + task = kthread_run(xenbus_thread, NULL, "xenbus"); + if (IS_ERR(task)) + return PTR_ERR(task); + + return 0; +} diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 45c35986d49f..0a7068e30ecb 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -131,7 +131,9 @@ static void v9fs_parse_options(char *options, struct v9fs_session_info *v9ses) switch (token) { case Opt_debug: v9ses->debug = option; +#ifdef CONFIG_NET_9P_DEBUG p9_debug_level = option; +#endif break; case Opt_port: v9ses->port = option; diff --git a/fs/Kconfig b/fs/Kconfig index ee11f8d94085..6a649902c5ac 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -251,7 +251,7 @@ config JBD2 config JBD2_DEBUG bool "JBD2 (ext4dev/ext4) debugging support" - depends on JBD2 + depends on JBD2 && DEBUG_FS help If you are using the ext4dev/ext4 journaled file system (or potentially any other filesystem/device using JBD2), this option @@ -260,10 +260,10 @@ config JBD2_DEBUG By default, the debugging output will be turned off. If you select Y here, then you will be able to turn on debugging - with "echo N > /proc/sys/fs/jbd2-debug", where N is a number between - 1 and 5. The higher the number, the more debugging output is - generated. To turn debugging off again, do - "echo 0 > /proc/sys/fs/jbd2-debug". + with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a + number between 1 and 5. The higher the number, the more debugging + output is generated. To turn debugging off again, do + "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug". config FS_MBCACHE # Meta block cache for Extended Attributes (ext2/ext3/ext4) @@ -1675,6 +1675,7 @@ config NFSD_V3_ACL config NFSD_V4 bool "Provide NFSv4 server support (EXPERIMENTAL)" depends on NFSD_V3 && EXPERIMENTAL + select RPCSEC_GSS_KRB5 help If you would like to include the NFSv4 server as well as the NFSv2 and NFSv3 servers, say Y here. This feature is experimental, and diff --git a/fs/afs/flock.c b/fs/afs/flock.c index 8f07f8d1bfa9..4f77f3caee97 100644 --- a/fs/afs/flock.c +++ b/fs/afs/flock.c @@ -456,7 +456,8 @@ static int afs_do_getlk(struct file *file, struct file_lock *fl) /* check local lock records first */ ret = 0; - if (posix_test_lock(file, fl) == 0) { + posix_test_lock(file, fl); + if (fl->fl_type == F_UNLCK) { /* no local locks; consult the server */ ret = afs_vnode_fetch_status(vnode, NULL, key); if (ret < 0) diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c index a260198306c2..b4a75880f6fd 100644 --- a/fs/anon_inodes.c +++ b/fs/anon_inodes.c @@ -139,6 +139,7 @@ err_put_filp: put_filp(file); return error; } +EXPORT_SYMBOL_GPL(anon_inode_getfd); /* * A single inode exists for all anon_inode files. Contrary to pipes, diff --git a/fs/attr.c b/fs/attr.c index a0a0c7b07ba3..f8dfc2269d85 100644 --- a/fs/attr.c +++ b/fs/attr.c @@ -42,7 +42,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) /* Make sure a caller can chmod. */ if (ia_valid & ATTR_MODE) { - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) goto error; /* Also check the setgid bit! */ if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid : @@ -52,7 +52,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) /* Check for setting the inode time. */ if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) { - if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) goto error; } fine: diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index a27e42bf3400..ba24cb2ff6ce 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -148,6 +148,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, elf_addr_t *elf_info; int ei_index = 0; struct task_struct *tsk = current; + struct vm_area_struct *vma; /* * If this architecture has a platform capability string, copy it @@ -234,6 +235,15 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, sp = (elf_addr_t __user *)bprm->p; #endif + + /* + * Grow the stack manually; some architectures have a limit on how + * far ahead a user-space access may be in order to grow the stack. + */ + vma = find_extend_vma(current->mm, bprm->p); + if (!vma) + return -EFAULT; + /* Now, let's put argc (and argv, envp if appropriate) on the stack */ if (__put_user(argc, sp++)) return -EFAULT; @@ -254,8 +264,8 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, size_t len; if (__put_user((elf_addr_t)p, argv++)) return -EFAULT; - len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES); - if (!len || len > PAGE_SIZE*MAX_ARG_PAGES) + len = strnlen_user((void __user *)p, MAX_ARG_STRLEN); + if (!len || len > MAX_ARG_STRLEN) return 0; p += len; } @@ -266,8 +276,8 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, size_t len; if (__put_user((elf_addr_t)p, envp++)) return -EFAULT; - len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES); - if (!len || len > PAGE_SIZE*MAX_ARG_PAGES) + len = strnlen_user((void __user *)p, MAX_ARG_STRLEN); + if (!len || len > MAX_ARG_STRLEN) return 0; p += len; } @@ -826,10 +836,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) } /* OK, This is the point of no return */ - current->mm->start_data = 0; - current->mm->end_data = 0; - current->mm->end_code = 0; - current->mm->mmap = NULL; current->flags &= ~PF_FORKNOEXEC; current->mm->def_flags = def_flags; @@ -1051,9 +1057,13 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) compute_creds(bprm); current->flags &= ~PF_FORKNOEXEC; - create_elf_tables(bprm, &loc->elf_ex, + retval = create_elf_tables(bprm, &loc->elf_ex, (interpreter_type == INTERPRETER_AOUT), load_addr, interp_load_addr); + if (retval < 0) { + send_sig(SIGKILL, current, 0); + goto out; + } /* N.B. passed_fileno might not be initialized? */ if (interpreter_type == INTERPRETER_AOUT) current->mm->arg_start += strlen(passed_fileno) + 1; @@ -1252,7 +1262,7 @@ static int dump_seek(struct file *file, loff_t off) * * I think we should skip something. But I am not sure how. H.J. */ -static int maydump(struct vm_area_struct *vma) +static int maydump(struct vm_area_struct *vma, unsigned long mm_flags) { /* The vma can be set up to tell us the answer directly. */ if (vma->vm_flags & VM_ALWAYSDUMP) @@ -1262,15 +1272,19 @@ static int maydump(struct vm_area_struct *vma) if (vma->vm_flags & (VM_IO | VM_RESERVED)) return 0; - /* Dump shared memory only if mapped from an anonymous file. */ - if (vma->vm_flags & VM_SHARED) - return vma->vm_file->f_path.dentry->d_inode->i_nlink == 0; + /* By default, dump shared memory if mapped from an anonymous file. */ + if (vma->vm_flags & VM_SHARED) { + if (vma->vm_file->f_path.dentry->d_inode->i_nlink == 0) + return test_bit(MMF_DUMP_ANON_SHARED, &mm_flags); + else + return test_bit(MMF_DUMP_MAPPED_SHARED, &mm_flags); + } - /* If it hasn't been written to, don't write it out */ + /* By default, if it hasn't been written to, don't write it out. */ if (!vma->anon_vma) - return 0; + return test_bit(MMF_DUMP_MAPPED_PRIVATE, &mm_flags); - return 1; + return test_bit(MMF_DUMP_ANON_PRIVATE, &mm_flags); } /* An ELF note in memory */ @@ -1562,6 +1576,7 @@ static int elf_core_dump(long signr, struct pt_regs *regs, struct file *file) #endif int thread_status_size = 0; elf_addr_t *auxv; + unsigned long mm_flags; #ifdef ELF_CORE_WRITE_EXTRA_NOTES int extra_notes_size; #endif @@ -1705,6 +1720,13 @@ static int elf_core_dump(long signr, struct pt_regs *regs, struct file *file) dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE); + /* + * We must use the same mm->flags while dumping core to avoid + * inconsistency between the program headers and bodies, otherwise an + * unusable core file can be generated. + */ + mm_flags = current->mm->flags; + /* Write program headers for segments dump */ for (vma = first_vma(current, gate_vma); vma != NULL; vma = next_vma(vma, gate_vma)) { @@ -1717,7 +1739,7 @@ static int elf_core_dump(long signr, struct pt_regs *regs, struct file *file) phdr.p_offset = offset; phdr.p_vaddr = vma->vm_start; phdr.p_paddr = 0; - phdr.p_filesz = maydump(vma) ? sz : 0; + phdr.p_filesz = maydump(vma, mm_flags) ? sz : 0; phdr.p_memsz = sz; offset += phdr.p_filesz; phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0; @@ -1761,7 +1783,7 @@ static int elf_core_dump(long signr, struct pt_regs *regs, struct file *file) vma = next_vma(vma, gate_vma)) { unsigned long addr; - if (!maydump(vma)) + if (!maydump(vma, mm_flags)) continue; for (addr = vma->vm_start; diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 9d62fbad3d4b..2f5d8dbe676d 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -621,8 +621,8 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, p = (char __user *) current->mm->arg_start; for (loop = bprm->argc; loop > 0; loop--) { __put_user((elf_caddr_t) p, argv++); - len = strnlen_user(p, PAGE_SIZE * MAX_ARG_PAGES); - if (!len || len > PAGE_SIZE * MAX_ARG_PAGES) + len = strnlen_user(p, MAX_ARG_STRLEN); + if (!len || len > MAX_ARG_STRLEN) return -EINVAL; p += len; } @@ -633,8 +633,8 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, current->mm->env_start = (unsigned long) p; for (loop = bprm->envc; loop > 0; loop--) { __put_user((elf_caddr_t)(unsigned long) p, envp++); - len = strnlen_user(p, PAGE_SIZE * MAX_ARG_PAGES); - if (!len || len > PAGE_SIZE * MAX_ARG_PAGES) + len = strnlen_user(p, MAX_ARG_STRLEN); + if (!len || len > MAX_ARG_STRLEN) return -EINVAL; p += len; } @@ -1181,8 +1181,10 @@ static int dump_seek(struct file *file, loff_t off) * * I think we should skip something. But I am not sure how. H.J. */ -static int maydump(struct vm_area_struct *vma) +static int maydump(struct vm_area_struct *vma, unsigned long mm_flags) { + int dump_ok; + /* Do not dump I/O mapped devices or special mappings */ if (vma->vm_flags & (VM_IO | VM_RESERVED)) { kdcore("%08lx: %08lx: no (IO)", vma->vm_start, vma->vm_flags); @@ -1197,27 +1199,35 @@ static int maydump(struct vm_area_struct *vma) return 0; } - /* Dump shared memory only if mapped from an anonymous file. */ + /* By default, dump shared memory if mapped from an anonymous file. */ if (vma->vm_flags & VM_SHARED) { if (vma->vm_file->f_path.dentry->d_inode->i_nlink == 0) { - kdcore("%08lx: %08lx: no (share)", vma->vm_start, vma->vm_flags); - return 1; + dump_ok = test_bit(MMF_DUMP_ANON_SHARED, &mm_flags); + kdcore("%08lx: %08lx: %s (share)", vma->vm_start, + vma->vm_flags, dump_ok ? "yes" : "no"); + return dump_ok; } - kdcore("%08lx: %08lx: no (share)", vma->vm_start, vma->vm_flags); - return 0; + dump_ok = test_bit(MMF_DUMP_MAPPED_SHARED, &mm_flags); + kdcore("%08lx: %08lx: %s (share)", vma->vm_start, + vma->vm_flags, dump_ok ? "yes" : "no"); + return dump_ok; } #ifdef CONFIG_MMU - /* If it hasn't been written to, don't write it out */ + /* By default, if it hasn't been written to, don't write it out */ if (!vma->anon_vma) { - kdcore("%08lx: %08lx: no (!anon)", vma->vm_start, vma->vm_flags); - return 0; + dump_ok = test_bit(MMF_DUMP_MAPPED_PRIVATE, &mm_flags); + kdcore("%08lx: %08lx: %s (!anon)", vma->vm_start, + vma->vm_flags, dump_ok ? "yes" : "no"); + return dump_ok; } #endif - kdcore("%08lx: %08lx: yes", vma->vm_start, vma->vm_flags); - return 1; + dump_ok = test_bit(MMF_DUMP_ANON_PRIVATE, &mm_flags); + kdcore("%08lx: %08lx: %s", vma->vm_start, vma->vm_flags, + dump_ok ? "yes" : "no"); + return dump_ok; } /* An ELF note in memory */ @@ -1456,15 +1466,15 @@ static int elf_dump_thread_status(long signr, struct elf_thread_status *t) * dump the segments for an MMU process */ #ifdef CONFIG_MMU -static int elf_fdpic_dump_segments(struct file *file, struct mm_struct *mm, - size_t *size, unsigned long *limit) +static int elf_fdpic_dump_segments(struct file *file, size_t *size, + unsigned long *limit, unsigned long mm_flags) { struct vm_area_struct *vma; for (vma = current->mm->mmap; vma; vma = vma->vm_next) { unsigned long addr; - if (!maydump(vma)) + if (!maydump(vma, mm_flags)) continue; for (addr = vma->vm_start; @@ -1511,15 +1521,15 @@ end_coredump: * dump the segments for a NOMMU process */ #ifndef CONFIG_MMU -static int elf_fdpic_dump_segments(struct file *file, struct mm_struct *mm, - size_t *size, unsigned long *limit) +static int elf_fdpic_dump_segments(struct file *file, size_t *size, + unsigned long *limit, unsigned long mm_flags) { struct vm_list_struct *vml; for (vml = current->mm->context.vmlist; vml; vml = vml->next) { struct vm_area_struct *vma = vml->vma; - if (!maydump(vma)) + if (!maydump(vma, mm_flags)) continue; if ((*size += PAGE_SIZE) > *limit) @@ -1570,6 +1580,7 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs, struct vm_list_struct *vml; #endif elf_addr_t *auxv; + unsigned long mm_flags; /* * We no longer stop all VM operations. @@ -1707,6 +1718,13 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs, /* Page-align dumped data */ dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE); + /* + * We must use the same mm->flags while dumping core to avoid + * inconsistency between the program headers and bodies, otherwise an + * unusable core file can be generated. + */ + mm_flags = current->mm->flags; + /* write program headers for segments dump */ for ( #ifdef CONFIG_MMU @@ -1728,7 +1746,7 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs, phdr.p_offset = offset; phdr.p_vaddr = vma->vm_start; phdr.p_paddr = 0; - phdr.p_filesz = maydump(vma) ? sz : 0; + phdr.p_filesz = maydump(vma, mm_flags) ? sz : 0; phdr.p_memsz = sz; offset += phdr.p_filesz; phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0; @@ -1762,7 +1780,7 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs, DUMP_SEEK(dataoff); - if (elf_fdpic_dump_segments(file, current->mm, &size, &limit) < 0) + if (elf_fdpic_dump_segments(file, &size, &limit, mm_flags) < 0) goto end_coredump; #ifdef ELF_CORE_WRITE_EXTRA_DATA diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 330fd3fe8546..42e94b3ab7be 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -126,7 +126,9 @@ static int load_misc_binary(struct linux_binprm *bprm, struct pt_regs *regs) goto _ret; if (!(fmt->flags & MISC_FMT_PRESERVE_ARGV0)) { - remove_arg_zero(bprm); + retval = remove_arg_zero(bprm); + if (retval) + goto _ret; } if (fmt->flags & MISC_FMT_OPEN_BINARY) { diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c index 304c88544d89..4d0e0f6d3273 100644 --- a/fs/binfmt_script.c +++ b/fs/binfmt_script.c @@ -67,7 +67,9 @@ static int load_script(struct linux_binprm *bprm,struct pt_regs *regs) * This is done in reverse order, because of how the * user environment and arguments are stored. */ - remove_arg_zero(bprm); + retval = remove_arg_zero(bprm); + if (retval) + return retval; retval = copy_strings_kernel(1, &bprm->interp, bprm); if (retval < 0) return retval; bprm->argc++; diff --git a/fs/buffer.c b/fs/buffer.c index 424165b569f8..0f9006714230 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -356,7 +356,7 @@ static void free_more_memory(void) for_each_online_pgdat(pgdat) { zones = pgdat->node_zonelists[gfp_zone(GFP_NOFS)].zones; if (*zones) - try_to_free_pages(zones, GFP_NOFS); + try_to_free_pages(zones, 0, GFP_NOFS); } } @@ -676,6 +676,39 @@ void mark_buffer_dirty_inode(struct buffer_head *bh, struct inode *inode) EXPORT_SYMBOL(mark_buffer_dirty_inode); /* + * Mark the page dirty, and set it dirty in the radix tree, and mark the inode + * dirty. + * + * If warn is true, then emit a warning if the page is not uptodate and has + * not been truncated. + */ +static int __set_page_dirty(struct page *page, + struct address_space *mapping, int warn) +{ + if (unlikely(!mapping)) + return !TestSetPageDirty(page); + + if (TestSetPageDirty(page)) + return 0; + + write_lock_irq(&mapping->tree_lock); + if (page->mapping) { /* Race with truncate? */ + WARN_ON_ONCE(warn && !PageUptodate(page)); + + if (mapping_cap_account_dirty(mapping)) { + __inc_zone_page_state(page, NR_FILE_DIRTY); + task_io_account_write(PAGE_CACHE_SIZE); + } + radix_tree_tag_set(&mapping->page_tree, + page_index(page), PAGECACHE_TAG_DIRTY); + } + write_unlock_irq(&mapping->tree_lock); + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); + + return 1; +} + +/* * Add a page to the dirty page list. * * It is a sad fact of life that this function is called from several places @@ -702,7 +735,7 @@ EXPORT_SYMBOL(mark_buffer_dirty_inode); */ int __set_page_dirty_buffers(struct page *page) { - struct address_space * const mapping = page_mapping(page); + struct address_space *mapping = page_mapping(page); if (unlikely(!mapping)) return !TestSetPageDirty(page); @@ -719,21 +752,7 @@ int __set_page_dirty_buffers(struct page *page) } spin_unlock(&mapping->private_lock); - if (TestSetPageDirty(page)) - return 0; - - write_lock_irq(&mapping->tree_lock); - if (page->mapping) { /* Race with truncate? */ - if (mapping_cap_account_dirty(mapping)) { - __inc_zone_page_state(page, NR_FILE_DIRTY); - task_io_account_write(PAGE_CACHE_SIZE); - } - radix_tree_tag_set(&mapping->page_tree, - page_index(page), PAGECACHE_TAG_DIRTY); - } - write_unlock_irq(&mapping->tree_lock); - __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); - return 1; + return __set_page_dirty(page, mapping, 1); } EXPORT_SYMBOL(__set_page_dirty_buffers); @@ -982,7 +1001,7 @@ grow_dev_page(struct block_device *bdev, sector_t block, struct buffer_head *bh; page = find_or_create_page(inode->i_mapping, index, - mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS); + (mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS)|__GFP_MOVABLE); if (!page) return NULL; @@ -1132,8 +1151,9 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size) */ void fastcall mark_buffer_dirty(struct buffer_head *bh) { + WARN_ON_ONCE(!buffer_uptodate(bh)); if (!buffer_dirty(bh) && !test_set_buffer_dirty(bh)) - __set_page_dirty_nobuffers(bh->b_page); + __set_page_dirty(bh->b_page, page_mapping(bh->b_page), 0); } /* diff --git a/fs/char_dev.c b/fs/char_dev.c index 164a45cdaf5f..bbbf07baa145 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c @@ -321,14 +321,13 @@ void unregister_chrdev_region(dev_t from, unsigned count) } } -int unregister_chrdev(unsigned int major, const char *name) +void unregister_chrdev(unsigned int major, const char *name) { struct char_device_struct *cd; cd = __unregister_chrdev_region(major, 0, 256); if (cd && cd->cdev) cdev_del(cd->cdev); kfree(cd); - return 0; } static DEFINE_SPINLOCK(cdev_lock); diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index a9b6bc5157b8..6d84ca2beead 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -1,3 +1,10 @@ +Version 1.50 +------------ +Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is +done with "serverino" mount option). Add support for POSIX Unlink +(helps with certain sharing violation cases when server such as +Samba supports newer POSIX CIFS Protocol Extensions). + Version 1.49 ------------ IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6 @@ -8,7 +15,11 @@ when Unix Extensions were ignored). This allows users to override the default uid and gid for files when they are certain that the uids or gids on the server do not match those of the client. Make "sec=none" mount override username (so that null user connection is attempted) -to match what documentation said. +to match what documentation said. Support for very large reads, over 127K, +available to some newer servers (such as Samba 3.0.26 and later but +note that it also requires setting CIFSMaxBufSize at module install +time to a larger value which may hurt performance in some cases). +Make sign option force signing (or fail if server does not support it). Version 1.48 ------------ diff --git a/fs/cifs/README b/fs/cifs/README index 4d01697722cc..85f1eb14083e 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -301,10 +301,21 @@ A partial list of the supported mount options follows: during the local client kernel build will be used. If server does not support Unicode, this parameter is unused. - rsize default read size (usually 16K) - wsize default write size (usually 16K, 32K is often better over GigE) - maximum wsize currently allowed by CIFS is 57344 (14 4096 byte - pages) + rsize default read size (usually 16K). The client currently + can not use rsize larger than CIFSMaxBufSize. CIFSMaxBufSize + defaults to 16K and may be changed (from 8K to the maximum + kmalloc size allowed by your kernel) at module install time + for cifs.ko. Setting CIFSMaxBufSize to a very large value + will cause cifs to use more memory and may reduce performance + in some cases. To use rsize greater than 127K (the original + cifs protocol maximum) also requires that the server support + a new Unix Capability flag (for very large read) which some + newer servers (e.g. Samba 3.0.26 or later) do. rsize can be + set from a minimum of 2048 to a maximum of 130048 (127K or + CIFSMaxBufSize, whichever is smaller) + wsize default write size (default 57344) + maximum wsize currently allowed by CIFS is 57344 (fourteen + 4096 byte pages) rw mount the network share read-write (note that the server may still consider the share read-only) ro mount network share read-only @@ -359,7 +370,7 @@ A partial list of the supported mount options follows: Note that this does not affect the normal ACL check on the target machine done by the server software (of the server ACL against the user name provided at mount time). - serverino Use servers inode numbers instead of generating automatically + serverino Use server's inode numbers instead of generating automatically incrementing inode numbers on the client. Although this will make it easier to spot hardlinked files (as they will have the same inode numbers) and inode numbers may be persistent, @@ -367,12 +378,11 @@ A partial list of the supported mount options follows: are unique if multiple server side mounts are exported under a single share (since inode numbers on the servers might not be unique if multiple filesystems are mounted under the same - shared higher level directory). Note that this requires that - the server support the CIFS Unix Extensions as other servers - do not return a unique IndexNumber on SMB FindFirst (most - servers return zero as the IndexNumber). Parameter has no - effect to Windows servers and others which do not support the - CIFS Unix Extensions. + shared higher level directory). Note that some older + (e.g. pre-Windows 2000) do not support returning UniqueIDs + or the CIFS Unix Extensions equivalent and for those + this mount option will have no effect. Exporting cifs mounts + under nfsd requires this mount option on the cifs mount. noserverino Client generates inode numbers (rather than using the actual one from the server) by default. setuids If the CIFS Unix extensions are negotiated with the server @@ -582,10 +592,10 @@ the start of smb requests and responses can be enabled via: echo 1 > /proc/fs/cifs/traceSMB -Two other experimental features are under development and to test -require enabling CONFIG_CIFS_EXPERIMENTAL +Two other experimental features are under development. To test these +requires enabling CONFIG_CIFS_EXPERIMENTAL - More efficient write operations + ipv6 enablement DNOTIFY fcntl: needed for support of directory change notification and perhaps later for file leases) diff --git a/fs/cifs/TODO b/fs/cifs/TODO index 78b620e332bd..d7bd51575fd6 100644 --- a/fs/cifs/TODO +++ b/fs/cifs/TODO @@ -18,9 +18,9 @@ better) d) Kerberos/SPNEGO session setup support - (started) -e) More testing of NTLMv2 authentication (mostly implemented - double check -that NTLMv2 signing works, also need to cleanup now unneeded SessSetup code in -fs/cifs/connect.c) +e) Cleanup now unneeded SessSetup code in +fs/cifs/connect.c and add back in NTLMSSP code if any servers +need it f) MD5-HMAC signing SMB PDUs when SPNEGO style SessionSetup used (Kerberos or NTLMSSP). Signing alreadyimplemented for NTLM @@ -106,6 +106,12 @@ but recognizes them succeed but still return access denied (appears to be Windows server not cifs client problem) and has not been reproduced recently. NTFS partitions do not have this problem. +4) Unix/POSIX capabilities are reset after reconnection, and affect +a few fields in the tree connection but we do do not know which +superblocks to apply these changes to. We should probably walk +the list of superblocks to set these. Also need to check the +flags on the second mount to the same share, and see if we +can do the same trick that NFS does to remount duplicate shares. Misc testing to do ================== diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c index 2e75883b7f54..f50a88d58f78 100644 --- a/fs/cifs/asn1.c +++ b/fs/cifs/asn1.c @@ -1,7 +1,7 @@ -/* +/* * The ASB.1/BER parsing code is derived from ip_nat_snmp_basic.c which was in * turn derived from the gxsnmp package by Gregory McLean & Jochen Friedrich - * + * * Copyright (c) 2000 RP Internet (www.rpi.net.au). * * This program is free software; you can redistribute it and/or modify @@ -80,7 +80,7 @@ static unsigned long SPNEGO_OID[7] = { 1, 3, 6, 1, 5, 5, 2 }; static unsigned long NTLMSSP_OID[10] = { 1, 3, 6, 1, 4, 1, 311, 2, 2, 10 }; -/* +/* * ASN.1 context. */ struct asn1_ctx { @@ -190,7 +190,7 @@ asn1_header_decode(struct asn1_ctx *ctx, unsigned char **eoc, unsigned int *cls, unsigned int *con, unsigned int *tag) { - unsigned int def = 0; + unsigned int def = 0; unsigned int len = 0; if (!asn1_id_decode(ctx, cls, con, tag)) @@ -331,7 +331,7 @@ static unsigned char asn1_ulong_decode(struct asn1_ctx *ctx, *integer |= ch; } return 1; -} +} static unsigned char asn1_octets_decode(struct asn1_ctx *ctx, @@ -376,7 +376,7 @@ asn1_subid_decode(struct asn1_ctx *ctx, unsigned long *subid) return 1; } -static int +static int asn1_oid_decode(struct asn1_ctx *ctx, unsigned char *eoc, unsigned long **oid, unsigned int *len) { @@ -459,7 +459,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, unsigned int cls, con, tag, oidlen, rc; int use_ntlmssp = FALSE; - *secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default */ + *secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default*/ /* cifs_dump_mem(" Received SecBlob ", security_blob, length); */ @@ -498,7 +498,8 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } else if ((cls != ASN1_CTX) || (con != ASN1_CON) || (tag != ASN1_EOC)) { - cFYI(1,("cls = %d con = %d tag = %d end = %p (%d) exit 0", + cFYI(1, + ("cls = %d con = %d tag = %d end = %p (%d) exit 0", cls, con, tag, end, *end)); return 0; } @@ -508,7 +509,8 @@ decode_negTokenInit(unsigned char *security_blob, int length, return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_CON) || (tag != ASN1_SEQ)) { - cFYI(1,("cls = %d con = %d tag = %d end = %p (%d) exit 1", + cFYI(1, + ("cls = %d con = %d tag = %d end = %p (%d) exit 1", cls, con, tag, end, *end)); return 0; } @@ -540,32 +542,34 @@ decode_negTokenInit(unsigned char *security_blob, int length, rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag); if (!rc) { cFYI(1, - ("Error 1 decoding negTokenInit header exit 2")); + ("Error decoding negTokenInit hdr exit2")); return 0; } if ((tag == ASN1_OJI) && (con == ASN1_PRI)) { rc = asn1_oid_decode(&ctx, end, &oid, &oidlen); - if(rc) { + if (rc) { cFYI(1, - ("OID len = %d oid = 0x%lx 0x%lx 0x%lx 0x%lx", - oidlen, *oid, *(oid + 1), *(oid + 2), - *(oid + 3))); - rc = compare_oid(oid, oidlen, NTLMSSP_OID, - NTLMSSP_OID_LEN); + ("OID len = %d oid = 0x%lx 0x%lx " + "0x%lx 0x%lx", + oidlen, *oid, *(oid + 1), + *(oid + 2), *(oid + 3))); + rc = compare_oid(oid, oidlen, + NTLMSSP_OID, NTLMSSP_OID_LEN); kfree(oid); if (rc) use_ntlmssp = TRUE; } } else { - cFYI(1,("This should be an oid what is going on? ")); + cFYI(1, ("Should be an oid what is going on?")); } } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 3")); + ("Error decoding last part negTokenInit exit3")); return 0; - } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) { /* tag = 3 indicating mechListMIC */ + } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) { + /* tag = 3 indicating mechListMIC */ cFYI(1, ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)", cls, con, tag, end, *end)); @@ -573,7 +577,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 5")); + ("Error decoding last part negTokenInit exit5")); return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_CON) || (tag != ASN1_SEQ)) { @@ -584,7 +588,7 @@ decode_negTokenInit(unsigned char *security_blob, int length, if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 7")); + ("Error decoding last part negTokenInit exit 7")); return 0; } else if ((cls != ASN1_CTX) || (con != ASN1_CON)) { cFYI(1, @@ -594,20 +598,21 @@ decode_negTokenInit(unsigned char *security_blob, int length, } if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) { cFYI(1, - ("Error decoding last part of negTokenInit exit 9")); + ("Error decoding last part negTokenInit exit9")); return 0; } else if ((cls != ASN1_UNI) || (con != ASN1_PRI) || (tag != ASN1_GENSTR)) { cFYI(1, - ("Exit 10 cls = %d con = %d tag = %d end = %p (%d)", + ("Exit10 cls = %d con = %d tag = %d end = %p (%d)", cls, con, tag, end, *end)); return 0; } - cFYI(1, ("Need to call asn1_octets_decode() function for this %s", ctx.pointer)); /* is this UTF-8 or ASCII? */ + cFYI(1, ("Need to call asn1_octets_decode() function for %s", + ctx.pointer)); /* is this UTF-8 or ASCII? */ } - /* if (use_kerberos) - *secType = Kerberos + /* if (use_kerberos) + *secType = Kerberos else */ if (use_ntlmssp) { *secType = NTLMSSP; diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 07838b2ac1ce..1bf8cf522ad6 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -58,7 +58,7 @@ cifs_dump_mem(char *label, void *data, int length) } #ifdef CONFIG_CIFS_DEBUG2 -void cifs_dump_detail(struct smb_hdr * smb) +void cifs_dump_detail(struct smb_hdr *smb) { cERROR(1, ("Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d", smb->Command, smb->Status.CifsError, @@ -67,10 +67,10 @@ void cifs_dump_detail(struct smb_hdr * smb) } -void cifs_dump_mids(struct TCP_Server_Info * server) +void cifs_dump_mids(struct TCP_Server_Info *server) { struct list_head *tmp; - struct mid_q_entry * mid_entry; + struct mid_q_entry *mid_entry; if (server == NULL) return; @@ -114,12 +114,12 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset, { struct list_head *tmp; struct list_head *tmp1; - struct mid_q_entry * mid_entry; + struct mid_q_entry *mid_entry; struct cifsSesInfo *ses; struct cifsTconInfo *tcon; int i; int length = 0; - char * original_buf = buf; + char *original_buf = buf; *beginBuffer = buf + offset; @@ -145,7 +145,6 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset, (ses->serverNOS == NULL)) { buf += sprintf(buf, "\nentry for %s not fully " "displayed\n\t", ses->serverName); - } else { length = sprintf(buf, @@ -901,90 +900,14 @@ security_flags_write(struct file *file, const char __user *buffer, } /* flags look ok - update the global security flags for cifs module */ extended_security = flags; + if (extended_security & CIFSSEC_MUST_SIGN) { + /* requiring signing implies signing is allowed */ + extended_security |= CIFSSEC_MAY_SIGN; + cFYI(1, ("packet signing now required")); + } else if ((extended_security & CIFSSEC_MAY_SIGN) == 0) { + cFYI(1, ("packet signing disabled")); + } + /* BB should we turn on MAY flags for other MUST options? */ return count; } - -/* static int -ntlmv2_enabled_read(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int len; - - len = sprintf(page, "%d\n", ntlmv2_support); - - len -= off; - *start = page + off; - - if (len > count) - len = count; - else - *eof = 1; - - if (len < 0) - len = 0; - - return len; -} -static int -ntlmv2_enabled_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - char c; - int rc; - - rc = get_user(c, buffer); - if (rc) - return rc; - if (c == '0' || c == 'n' || c == 'N') - ntlmv2_support = 0; - else if (c == '1' || c == 'y' || c == 'Y') - ntlmv2_support = 1; - else if (c == '2') - ntlmv2_support = 2; - - return count; -} - -static int -packet_signing_enabled_read(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int len; - - len = sprintf(page, "%d\n", sign_CIFS_PDUs); - - len -= off; - *start = page + off; - - if (len > count) - len = count; - else - *eof = 1; - - if (len < 0) - len = 0; - - return len; -} -static int -packet_signing_enabled_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - char c; - int rc; - - rc = get_user(c, buffer); - if (rc) - return rc; - if (c == '0' || c == 'n' || c == 'N') - sign_CIFS_PDUs = 0; - else if (c == '1' || c == 'y' || c == 'Y') - sign_CIFS_PDUs = 1; - else if (c == '2') - sign_CIFS_PDUs = 2; - - return count; -} */ - - #endif diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index 4cc2012e9322..34af556cdd8d 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -43,6 +43,6 @@ struct cifs_sb_info { mode_t mnt_dir_mode; int mnt_cifs_flags; int prepathlen; - char * prepath; + char *prepath; }; #endif /* _CIFS_FS_SB_H */ diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index 701e9a9185f2..b5903b89250d 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -66,7 +66,7 @@ cifs_strtoUCS(__le16 * to, const char *from, int len, { int charlen; int i; - wchar_t * wchar_to = (wchar_t *)to; /* needed to quiet sparse */ + wchar_t *wchar_to = (wchar_t *)to; /* needed to quiet sparse */ for (i = 0; len && *from; i++, from += charlen, len -= charlen) { diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h index 39e5b970325f..614c11fcdcb6 100644 --- a/fs/cifs/cifs_unicode.h +++ b/fs/cifs/cifs_unicode.h @@ -5,20 +5,20 @@ * Convert a unicode character to upper or lower case using * compressed tables. * - * Copyright (c) International Business Machines Corp., 2000,2005555555555555555555555555555555555555555555555555555555 + * Copyright (c) International Business Machines Corp., 2000,2007 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * @@ -70,7 +70,7 @@ int cifs_strtoUCS(__le16 *, const char *, int, const struct nls_table *); * Address of the first string */ static inline wchar_t * -UniStrcat(wchar_t * ucs1, const wchar_t * ucs2) +UniStrcat(wchar_t *ucs1, const wchar_t *ucs2) { wchar_t *anchor = ucs1; /* save a pointer to start of ucs1 */ @@ -88,7 +88,7 @@ UniStrcat(wchar_t * ucs1, const wchar_t * ucs2) * or NULL if the character is not in the string */ static inline wchar_t * -UniStrchr(const wchar_t * ucs, wchar_t uc) +UniStrchr(const wchar_t *ucs, wchar_t uc) { while ((*ucs != uc) && *ucs) ucs++; @@ -107,7 +107,7 @@ UniStrchr(const wchar_t * ucs, wchar_t uc) * > 0: First string is greater than second */ static inline int -UniStrcmp(const wchar_t * ucs1, const wchar_t * ucs2) +UniStrcmp(const wchar_t *ucs1, const wchar_t *ucs2) { while ((*ucs1 == *ucs2) && *ucs1) { ucs1++; @@ -120,7 +120,7 @@ UniStrcmp(const wchar_t * ucs1, const wchar_t * ucs2) * UniStrcpy: Copy a string */ static inline wchar_t * -UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2) +UniStrcpy(wchar_t *ucs1, const wchar_t *ucs2) { wchar_t *anchor = ucs1; /* save the start of result string */ @@ -132,7 +132,7 @@ UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2) * UniStrlen: Return the length of a string (in 16 bit Unicode chars not bytes) */ static inline size_t -UniStrlen(const wchar_t * ucs1) +UniStrlen(const wchar_t *ucs1) { int i = 0; @@ -142,10 +142,11 @@ UniStrlen(const wchar_t * ucs1) } /* - * UniStrnlen: Return the length (in 16 bit Unicode chars not bytes) of a string (length limited) + * UniStrnlen: Return the length (in 16 bit Unicode chars not bytes) of a + * string (length limited) */ static inline size_t -UniStrnlen(const wchar_t * ucs1, int maxlen) +UniStrnlen(const wchar_t *ucs1, int maxlen) { int i = 0; @@ -161,7 +162,7 @@ UniStrnlen(const wchar_t * ucs1, int maxlen) * UniStrncat: Concatenate length limited string */ static inline wchar_t * -UniStrncat(wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncat(wchar_t *ucs1, const wchar_t *ucs2, size_t n) { wchar_t *anchor = ucs1; /* save pointer to string 1 */ @@ -179,7 +180,7 @@ UniStrncat(wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncmp: Compare length limited string */ static inline int -UniStrncmp(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncmp(const wchar_t *ucs1, const wchar_t *ucs2, size_t n) { if (!n) return 0; /* Null strings are equal */ @@ -194,7 +195,7 @@ UniStrncmp(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncmp_le: Compare length limited string - native to little-endian */ static inline int -UniStrncmp_le(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncmp_le(const wchar_t *ucs1, const wchar_t *ucs2, size_t n) { if (!n) return 0; /* Null strings are equal */ @@ -209,7 +210,7 @@ UniStrncmp_le(const wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncpy: Copy length limited string with pad */ static inline wchar_t * -UniStrncpy(wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncpy(wchar_t *ucs1, const wchar_t *ucs2, size_t n) { wchar_t *anchor = ucs1; @@ -226,7 +227,7 @@ UniStrncpy(wchar_t * ucs1, const wchar_t * ucs2, size_t n) * UniStrncpy_le: Copy length limited string with pad to little-endian */ static inline wchar_t * -UniStrncpy_le(wchar_t * ucs1, const wchar_t * ucs2, size_t n) +UniStrncpy_le(wchar_t *ucs1, const wchar_t *ucs2, size_t n) { wchar_t *anchor = ucs1; @@ -247,7 +248,7 @@ UniStrncpy_le(wchar_t * ucs1, const wchar_t * ucs2, size_t n) * NULL if no matching string is found */ static inline wchar_t * -UniStrstr(const wchar_t * ucs1, const wchar_t * ucs2) +UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2) { const wchar_t *anchor1 = ucs1; const wchar_t *anchor2 = ucs2; @@ -297,7 +298,7 @@ UniToupper(register wchar_t uc) * UniStrupr: Upper case a unicode string */ static inline wchar_t * -UniStrupr(register wchar_t * upin) +UniStrupr(register wchar_t *upin) { register wchar_t *up; @@ -338,7 +339,7 @@ UniTolower(wchar_t uc) * UniStrlwr: Lower case a unicode string */ static inline wchar_t * -UniStrlwr(register wchar_t * upin) +UniStrlwr(register wchar_t *upin) { register wchar_t *up; diff --git a/fs/cifs/cifs_uniupr.h b/fs/cifs/cifs_uniupr.h index da2ad5b451ac..18a9d978e519 100644 --- a/fs/cifs/cifs_uniupr.h +++ b/fs/cifs/cifs_uniupr.h @@ -3,16 +3,16 @@ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * uniupr.h - Unicode compressed case ranges @@ -53,7 +53,7 @@ signed char CifsUniUpperTable[512] = { 0, -1, 0, -1, 0, -1, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, /* 1a0-1af */ -1, 0, 0, 0, -1, 0, -1, 0, 0, -1, 0, 0, 0, -1, 0, 0, /* 1b0-1bf */ 0, 0, 0, 0, 0, -1, -2, 0, -1, -2, 0, -1, -2, 0, -1, 0, /* 1c0-1cf */ - -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, -79, 0, -1, /* 1d0-1df */ + -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, -79, 0, -1, /* 1d0-1df */ 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, /* 1e0-1ef */ 0, 0, -1, -2, 0, -1, 0, 0, 0, -1, 0, -1, 0, -1, 0, -1, /* 1f0-1ff */ }; diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index fdeda519eace..36272293027d 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -21,7 +21,7 @@ #include <linux/fs.h> #include "cifspdu.h" -#include "cifsglob.h" +#include "cifsglob.h" #include "cifs_debug.h" #include "md5.h" #include "cifs_unicode.h" @@ -29,54 +29,57 @@ #include <linux/ctype.h> #include <linux/random.h> -/* Calculate and return the CIFS signature based on the mac key and the smb pdu */ +/* Calculate and return the CIFS signature based on the mac key and SMB PDU */ /* the 16 byte signature must be allocated by the caller */ /* Note we only use the 1st eight bytes */ -/* Note that the smb header signature field on input contains the +/* Note that the smb header signature field on input contains the sequence number before this function is called */ extern void mdfour(unsigned char *out, unsigned char *in, int n); extern void E_md4hash(const unsigned char *passwd, unsigned char *p16); extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, - unsigned char *p24); - -static int cifs_calculate_signature(const struct smb_hdr * cifs_pdu, - const char * key, char * signature) + unsigned char *p24); + +static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu, + const struct mac_key *key, char *signature) { struct MD5Context context; - if((cifs_pdu == NULL) || (signature == NULL)) + if ((cifs_pdu == NULL) || (signature == NULL) || (key == NULL)) return -EINVAL; MD5Init(&context); - MD5Update(&context,key,CIFS_SESS_KEY_SIZE+16); - MD5Update(&context,cifs_pdu->Protocol,cifs_pdu->smb_buf_length); - MD5Final(signature,&context); + MD5Update(&context, (char *)&key->data, key->len); + MD5Update(&context, cifs_pdu->Protocol, cifs_pdu->smb_buf_length); + + MD5Final(signature, &context); return 0; } -int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct TCP_Server_Info * server, - __u32 * pexpected_response_sequence_number) +int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, + __u32 *pexpected_response_sequence_number) { int rc = 0; char smb_signature[20]; - if((cifs_pdu == NULL) || (server == NULL)) + if ((cifs_pdu == NULL) || (server == NULL)) return -EINVAL; - if((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) + if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) return rc; spin_lock(&GlobalMid_Lock); - cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(server->sequence_number); + cifs_pdu->Signature.Sequence.SequenceNumber = + cpu_to_le32(server->sequence_number); cifs_pdu->Signature.Sequence.Reserved = 0; - + *pexpected_response_sequence_number = server->sequence_number++; server->sequence_number++; spin_unlock(&GlobalMid_Lock); - rc = cifs_calculate_signature(cifs_pdu, server->mac_signing_key,smb_signature); - if(rc) + rc = cifs_calculate_signature(cifs_pdu, &server->mac_signing_key, + smb_signature); + if (rc) memset(cifs_pdu->Signature.SecuritySignature, 0, 8); else memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8); @@ -84,115 +87,119 @@ int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct TCP_Server_Info * server, return rc; } -static int cifs_calc_signature2(const struct kvec * iov, int n_vec, - const char * key, char * signature) +static int cifs_calc_signature2(const struct kvec *iov, int n_vec, + const struct mac_key *key, char *signature) { struct MD5Context context; int i; - if((iov == NULL) || (signature == NULL)) + if ((iov == NULL) || (signature == NULL) || (key == NULL)) return -EINVAL; MD5Init(&context); - MD5Update(&context,key,CIFS_SESS_KEY_SIZE+16); - for(i=0;i<n_vec;i++) { - if(iov[i].iov_base == NULL) { - cERROR(1,("null iovec entry")); + MD5Update(&context, (char *)&key->data, key->len); + for (i = 0; i < n_vec; i++) { + if (iov[i].iov_base == NULL) { + cERROR(1, ("null iovec entry")); return -EIO; - } else if(iov[i].iov_len == 0) + } else if (iov[i].iov_len == 0) break; /* bail out if we are sent nothing to sign */ - /* The first entry includes a length field (which does not get + /* The first entry includes a length field (which does not get signed that occupies the first 4 bytes before the header */ - if(i==0) { + if (i == 0) { if (iov[0].iov_len <= 8 ) /* cmd field at offset 9 */ break; /* nothing to sign or corrupt header */ - MD5Update(&context,iov[0].iov_base+4, iov[0].iov_len-4); + MD5Update(&context, iov[0].iov_base+4, + iov[0].iov_len-4); } else - MD5Update(&context,iov[i].iov_base, iov[i].iov_len); + MD5Update(&context, iov[i].iov_base, iov[i].iov_len); } - MD5Final(signature,&context); + MD5Final(signature, &context); return 0; } -int cifs_sign_smb2(struct kvec * iov, int n_vec, struct TCP_Server_Info *server, +int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, __u32 * pexpected_response_sequence_number) { int rc = 0; char smb_signature[20]; - struct smb_hdr * cifs_pdu = iov[0].iov_base; + struct smb_hdr *cifs_pdu = iov[0].iov_base; - if((cifs_pdu == NULL) || (server == NULL)) + if ((cifs_pdu == NULL) || (server == NULL)) return -EINVAL; - if((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) + if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) return rc; - spin_lock(&GlobalMid_Lock); - cifs_pdu->Signature.Sequence.SequenceNumber = + spin_lock(&GlobalMid_Lock); + cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(server->sequence_number); - cifs_pdu->Signature.Sequence.Reserved = 0; + cifs_pdu->Signature.Sequence.Reserved = 0; - *pexpected_response_sequence_number = server->sequence_number++; - server->sequence_number++; - spin_unlock(&GlobalMid_Lock); + *pexpected_response_sequence_number = server->sequence_number++; + server->sequence_number++; + spin_unlock(&GlobalMid_Lock); - rc = cifs_calc_signature2(iov, n_vec, server->mac_signing_key, + rc = cifs_calc_signature2(iov, n_vec, &server->mac_signing_key, smb_signature); - if(rc) - memset(cifs_pdu->Signature.SecuritySignature, 0, 8); - else - memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8); - - return rc; + if (rc) + memset(cifs_pdu->Signature.SecuritySignature, 0, 8); + else + memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8); + return rc; } -int cifs_verify_signature(struct smb_hdr * cifs_pdu, const char * mac_key, - __u32 expected_sequence_number) +int cifs_verify_signature(struct smb_hdr *cifs_pdu, + const struct mac_key *mac_key, + __u32 expected_sequence_number) { unsigned int rc; char server_response_sig[8]; char what_we_think_sig_should_be[20]; - if((cifs_pdu == NULL) || (mac_key == NULL)) + if ((cifs_pdu == NULL) || (mac_key == NULL)) return -EINVAL; if (cifs_pdu->Command == SMB_COM_NEGOTIATE) return 0; if (cifs_pdu->Command == SMB_COM_LOCKING_ANDX) { - struct smb_com_lock_req * pSMB = (struct smb_com_lock_req *)cifs_pdu; - if(pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE) + struct smb_com_lock_req *pSMB = + (struct smb_com_lock_req *)cifs_pdu; + if (pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE) return 0; } - /* BB what if signatures are supposed to be on for session but server does not - send one? BB */ - + /* BB what if signatures are supposed to be on for session but + server does not send one? BB */ + /* Do not need to verify session setups with signature "BSRSPYL " */ - if(memcmp(cifs_pdu->Signature.SecuritySignature,"BSRSPYL ",8)==0) - cFYI(1,("dummy signature received for smb command 0x%x",cifs_pdu->Command)); + if (memcmp(cifs_pdu->Signature.SecuritySignature, "BSRSPYL ", 8) == 0) + cFYI(1, ("dummy signature received for smb command 0x%x", + cifs_pdu->Command)); /* save off the origiginal signature so we can modify the smb and check its signature against what the server sent */ - memcpy(server_response_sig,cifs_pdu->Signature.SecuritySignature,8); + memcpy(server_response_sig, cifs_pdu->Signature.SecuritySignature, 8); - cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(expected_sequence_number); + cifs_pdu->Signature.Sequence.SequenceNumber = + cpu_to_le32(expected_sequence_number); cifs_pdu->Signature.Sequence.Reserved = 0; rc = cifs_calculate_signature(cifs_pdu, mac_key, what_we_think_sig_should_be); - if(rc) + if (rc) return rc; - -/* cifs_dump_mem("what we think it should be: ",what_we_think_sig_should_be,16); */ +/* cifs_dump_mem("what we think it should be: ", + what_we_think_sig_should_be, 16); */ - if(memcmp(server_response_sig, what_we_think_sig_should_be, 8)) + if (memcmp(server_response_sig, what_we_think_sig_should_be, 8)) return -EACCES; else return 0; @@ -200,89 +207,94 @@ int cifs_verify_signature(struct smb_hdr * cifs_pdu, const char * mac_key, } /* We fill in key by putting in 40 byte array which was allocated by caller */ -int cifs_calculate_mac_key(char * key, const char * rn, const char * password) +int cifs_calculate_mac_key(struct mac_key *key, const char *rn, + const char *password) { char temp_key[16]; if ((key == NULL) || (rn == NULL)) return -EINVAL; E_md4hash(password, temp_key); - mdfour(key,temp_key,16); - memcpy(key+16,rn, CIFS_SESS_KEY_SIZE); + mdfour(key->data.ntlm, temp_key, 16); + memcpy(key->data.ntlm+16, rn, CIFS_SESS_KEY_SIZE); + key->len = 40; return 0; } -int CalcNTLMv2_partial_mac_key(struct cifsSesInfo * ses, - const struct nls_table * nls_info) +int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *ses, + const struct nls_table *nls_info) { char temp_hash[16]; struct HMACMD5Context ctx; - char * ucase_buf; - __le16 * unicode_buf; - unsigned int i,user_name_len,dom_name_len; + char *ucase_buf; + __le16 *unicode_buf; + unsigned int i, user_name_len, dom_name_len; - if(ses == NULL) + if (ses == NULL) return -EINVAL; E_md4hash(ses->password, temp_hash); hmac_md5_init_limK_to_64(temp_hash, 16, &ctx); user_name_len = strlen(ses->userName); - if(user_name_len > MAX_USERNAME_SIZE) + if (user_name_len > MAX_USERNAME_SIZE) return -EINVAL; - if(ses->domainName == NULL) + if (ses->domainName == NULL) return -EINVAL; /* BB should we use CIFS_LINUX_DOM */ dom_name_len = strlen(ses->domainName); - if(dom_name_len > MAX_USERNAME_SIZE) + if (dom_name_len > MAX_USERNAME_SIZE) return -EINVAL; - + ucase_buf = kmalloc((MAX_USERNAME_SIZE+1), GFP_KERNEL); - if(ucase_buf == NULL) + if (ucase_buf == NULL) return -ENOMEM; unicode_buf = kmalloc((MAX_USERNAME_SIZE+1)*4, GFP_KERNEL); - if(unicode_buf == NULL) { + if (unicode_buf == NULL) { kfree(ucase_buf); return -ENOMEM; } - - for(i=0;i<user_name_len;i++) + + for (i = 0; i < user_name_len; i++) ucase_buf[i] = nls_info->charset2upper[(int)ses->userName[i]]; ucase_buf[i] = 0; - user_name_len = cifs_strtoUCS(unicode_buf, ucase_buf, MAX_USERNAME_SIZE*2, nls_info); + user_name_len = cifs_strtoUCS(unicode_buf, ucase_buf, + MAX_USERNAME_SIZE*2, nls_info); unicode_buf[user_name_len] = 0; user_name_len++; - for(i=0;i<dom_name_len;i++) + for (i = 0; i < dom_name_len; i++) ucase_buf[i] = nls_info->charset2upper[(int)ses->domainName[i]]; ucase_buf[i] = 0; - dom_name_len = cifs_strtoUCS(unicode_buf+user_name_len, ucase_buf, MAX_USERNAME_SIZE*2, nls_info); + dom_name_len = cifs_strtoUCS(unicode_buf+user_name_len, ucase_buf, + MAX_USERNAME_SIZE*2, nls_info); unicode_buf[user_name_len + dom_name_len] = 0; hmac_md5_update((const unsigned char *) unicode_buf, - (user_name_len+dom_name_len)*2,&ctx); + (user_name_len+dom_name_len)*2, &ctx); - hmac_md5_final(ses->server->mac_signing_key,&ctx); + hmac_md5_final(ses->server->ntlmv2_hash, &ctx); kfree(ucase_buf); kfree(unicode_buf); return 0; } #ifdef CONFIG_CIFS_WEAK_PW_HASH -void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) +void calc_lanman_hash(struct cifsSesInfo *ses, char *lnm_session_key) { int i; char password_with_pad[CIFS_ENCPWD_SIZE]; - if(ses->server == NULL) + if (ses->server == NULL) return; memset(password_with_pad, 0, CIFS_ENCPWD_SIZE); - if(ses->password) + if (ses->password) strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE); - if((ses->server->secMode & SECMODE_PW_ENCRYPT) == 0) - if(extended_security & CIFSSEC_MAY_PLNTXT) { - memcpy(lnm_session_key, password_with_pad, CIFS_ENCPWD_SIZE); + if ((ses->server->secMode & SECMODE_PW_ENCRYPT) == 0) + if (extended_security & CIFSSEC_MAY_PLNTXT) { + memcpy(lnm_session_key, password_with_pad, + CIFS_ENCPWD_SIZE); return; } @@ -297,7 +309,7 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) utf8 and other multibyte codepages each need their own strupper function since a byte at a time will ont work. */ - for(i = 0; i < CIFS_ENCPWD_SIZE; i++) { + for (i = 0; i < CIFS_ENCPWD_SIZE; i++) { password_with_pad[i] = toupper(password_with_pad[i]); } @@ -307,19 +319,19 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key) } #endif /* CIFS_WEAK_PW_HASH */ -static int calc_ntlmv2_hash(struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static int calc_ntlmv2_hash(struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { int rc = 0; int len; char nt_hash[16]; - struct HMACMD5Context * pctxt; - wchar_t * user; - wchar_t * domain; + struct HMACMD5Context *pctxt; + wchar_t *user; + wchar_t *domain; pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL); - if(pctxt == NULL) + if (pctxt == NULL) return -ENOMEM; /* calculate md4 hash of password */ @@ -331,41 +343,45 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses, /* convert ses->userName to unicode and uppercase */ len = strlen(ses->userName); user = kmalloc(2 + (len * 2), GFP_KERNEL); - if(user == NULL) + if (user == NULL) goto calc_exit_2; len = cifs_strtoUCS(user, ses->userName, len, nls_cp); UniStrupr(user); hmac_md5_update((char *)user, 2*len, pctxt); /* convert ses->domainName to unicode and uppercase */ - if(ses->domainName) { + if (ses->domainName) { len = strlen(ses->domainName); - domain = kmalloc(2 + (len * 2), GFP_KERNEL); - if(domain == NULL) + domain = kmalloc(2 + (len * 2), GFP_KERNEL); + if (domain == NULL) goto calc_exit_1; len = cifs_strtoUCS(domain, ses->domainName, len, nls_cp); - UniStrupr(domain); + /* the following line was removed since it didn't work well + with lower cased domain name that passed as an option. + Maybe converting the domain name earlier makes sense */ + /* UniStrupr(domain); */ hmac_md5_update((char *)domain, 2*len, pctxt); - + kfree(domain); } calc_exit_1: kfree(user); calc_exit_2: - /* BB FIXME what about bytes 24 through 40 of the signing key? + /* BB FIXME what about bytes 24 through 40 of the signing key? compare with the NTLM example */ - hmac_md5_final(ses->server->mac_signing_key, pctxt); + hmac_md5_final(ses->server->ntlmv2_hash, pctxt); return rc; } -void setup_ntlmv2_rsp(struct cifsSesInfo * ses, char * resp_buf, - const struct nls_table * nls_cp) +void setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf, + const struct nls_table *nls_cp) { int rc; - struct ntlmv2_resp * buf = (struct ntlmv2_resp *)resp_buf; + struct ntlmv2_resp *buf = (struct ntlmv2_resp *)resp_buf; + struct HMACMD5Context context; buf->blob_signature = cpu_to_le32(0x00000101); buf->reserved = 0; @@ -379,21 +395,31 @@ void setup_ntlmv2_rsp(struct cifsSesInfo * ses, char * resp_buf, /* calculate buf->ntlmv2_hash */ rc = calc_ntlmv2_hash(ses, nls_cp); - if(rc) - cERROR(1,("could not get v2 hash rc %d",rc)); + if (rc) + cERROR(1, ("could not get v2 hash rc %d", rc)); CalcNTLMv2_response(ses, resp_buf); + + /* now calculate the MAC key for NTLMv2 */ + hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context); + hmac_md5_update(resp_buf, 16, &context); + hmac_md5_final(ses->server->mac_signing_key.data.ntlmv2.key, &context); + + memcpy(&ses->server->mac_signing_key.data.ntlmv2.resp, resp_buf, + sizeof(struct ntlmv2_resp)); + ses->server->mac_signing_key.len = 16 + sizeof(struct ntlmv2_resp); } -void CalcNTLMv2_response(const struct cifsSesInfo * ses, char * v2_session_response) +void CalcNTLMv2_response(const struct cifsSesInfo *ses, + char *v2_session_response) { struct HMACMD5Context context; /* rest of v2 struct already generated */ - memcpy(v2_session_response + 8, ses->server->cryptKey,8); - hmac_md5_init_limK_to_64(ses->server->mac_signing_key, 16, &context); + memcpy(v2_session_response + 8, ses->server->cryptKey, 8); + hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context); - hmac_md5_update(v2_session_response+8, + hmac_md5_update(v2_session_response+8, sizeof(struct ntlmv2_resp) - 8, &context); - hmac_md5_final(v2_session_response,&context); + hmac_md5_final(v2_session_response, &context); /* cifs_dump_mem("v2_sess_rsp: ", v2_session_response, 32); */ } diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 8b0cbf4a4ad0..1fd0dc85f53c 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -64,23 +64,27 @@ unsigned int multiuser_mount = 0; unsigned int extended_security = CIFSSEC_DEF; /* unsigned int ntlmv2_support = 0; */ unsigned int sign_CIFS_PDUs = 1; -extern struct task_struct * oplockThread; /* remove sparse warning */ -struct task_struct * oplockThread = NULL; +extern struct task_struct *oplockThread; /* remove sparse warning */ +struct task_struct *oplockThread = NULL; /* extern struct task_struct * dnotifyThread; remove sparse warning */ -static struct task_struct * dnotifyThread = NULL; +static struct task_struct *dnotifyThread = NULL; static const struct super_operations cifs_super_ops; unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE; module_param(CIFSMaxBufSize, int, 0); -MODULE_PARM_DESC(CIFSMaxBufSize,"Network buffer size (not including header). Default: 16384 Range: 8192 to 130048"); +MODULE_PARM_DESC(CIFSMaxBufSize, "Network buffer size (not including header). " + "Default: 16384 Range: 8192 to 130048"); unsigned int cifs_min_rcv = CIFS_MIN_RCV_POOL; module_param(cifs_min_rcv, int, 0); -MODULE_PARM_DESC(cifs_min_rcv,"Network buffers in pool. Default: 4 Range: 1 to 64"); +MODULE_PARM_DESC(cifs_min_rcv, "Network buffers in pool. Default: 4 Range: " + "1 to 64"); unsigned int cifs_min_small = 30; module_param(cifs_min_small, int, 0); -MODULE_PARM_DESC(cifs_min_small,"Small network buffers in pool. Default: 30 Range: 2 to 256"); +MODULE_PARM_DESC(cifs_min_small, "Small network buffers in pool. Default: 30 " + "Range: 2 to 256"); unsigned int cifs_max_pending = CIFS_MAX_REQ; module_param(cifs_max_pending, int, 0); -MODULE_PARM_DESC(cifs_max_pending,"Simultaneous requests to server. Default: 50 Range: 2 to 256"); +MODULE_PARM_DESC(cifs_max_pending, "Simultaneous requests to server. " + "Default: 50 Range: 2 to 256"); extern mempool_t *cifs_sm_req_poolp; extern mempool_t *cifs_req_poolp; @@ -95,10 +99,10 @@ cifs_read_super(struct super_block *sb, void *data, struct inode *inode; struct cifs_sb_info *cifs_sb; int rc = 0; - + /* BB should we make this contingent on mount parm? */ sb->s_flags |= MS_NODIRATIME | MS_NOATIME; - sb->s_fs_info = kzalloc(sizeof(struct cifs_sb_info),GFP_KERNEL); + sb->s_fs_info = kzalloc(sizeof(struct cifs_sb_info), GFP_KERNEL); cifs_sb = CIFS_SB(sb); if (cifs_sb == NULL) return -ENOMEM; @@ -114,12 +118,9 @@ cifs_read_super(struct super_block *sb, void *data, sb->s_magic = CIFS_MAGIC_NUMBER; sb->s_op = &cifs_super_ops; -#ifdef CONFIG_CIFS_EXPERIMENTAL - if (experimEnabled != 0) - sb->s_export_op = &cifs_export_ops; -#endif /* EXPERIMENTAL */ /* if (cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512) - sb->s_blocksize = cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */ + sb->s_blocksize = + cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */ #ifdef CONFIG_CIFS_QUOTA sb->s_qcop = &cifs_quotactl_ops; #endif @@ -139,6 +140,13 @@ cifs_read_super(struct super_block *sb, void *data, goto out_no_root; } +#ifdef CONFIG_CIFS_EXPERIMENTAL + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { + cFYI(1, ("export ops supported")); + sb->s_export_op = &cifs_export_ops; + } +#endif /* EXPERIMENTAL */ + return 0; out_no_root: @@ -149,7 +157,7 @@ out_no_root: out_mount_failed: if (cifs_sb) { if (cifs_sb->local_nls) - unload_nls(cifs_sb->local_nls); + unload_nls(cifs_sb->local_nls); kfree(cifs_sb); } return rc; @@ -164,10 +172,10 @@ cifs_put_super(struct super_block *sb) cFYI(1, ("In cifs_put_super")); cifs_sb = CIFS_SB(sb); if (cifs_sb == NULL) { - cFYI(1,("Empty cifs superblock info passed to unmount")); + cFYI(1, ("Empty cifs superblock info passed to unmount")); return; } - rc = cifs_umount(sb, cifs_sb); + rc = cifs_umount(sb, cifs_sb); if (rc) { cERROR(1, ("cifs_umount failed with return code %d", rc)); } @@ -180,7 +188,7 @@ static int cifs_statfs(struct dentry *dentry, struct kstatfs *buf) { struct super_block *sb = dentry->d_sb; - int xid; + int xid; int rc = -EOPNOTSUPP; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; @@ -193,7 +201,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_type = CIFS_MAGIC_NUMBER; /* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */ - buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would + buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would presumably be total path, but note that some servers (includinng Samba 3) have a shorter maximum path */ @@ -217,8 +225,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf) bypassed it because we detected that this was an older LANMAN sess */ if (rc) rc = SMBOldQFSInfo(xid, pTcon, buf); - /* - int f_type; + /* int f_type; __fsid_t f_fsid; int f_namelen; */ /* BB get from info in tcon struct at mount time call to QFSAttrInfo */ @@ -227,7 +234,7 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf) longer available? */ } -static int cifs_permission(struct inode * inode, int mask, struct nameidata *nd) +static int cifs_permission(struct inode *inode, int mask, struct nameidata *nd) { struct cifs_sb_info *cifs_sb; @@ -235,10 +242,10 @@ static int cifs_permission(struct inode * inode, int mask, struct nameidata *nd) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) { return 0; - } else /* file mode might have been restricted at mount time - on the client (above and beyond ACL on servers) for + } else /* file mode might have been restricted at mount time + on the client (above and beyond ACL on servers) for servers which do not support setting and viewing mode bits, - so allowing client to check permissions is useful */ + so allowing client to check permissions is useful */ return generic_permission(inode, mask, NULL); } @@ -267,7 +274,7 @@ cifs_alloc_inode(struct super_block *sb) cifs_inode->clientCanCacheRead = FALSE; cifs_inode->clientCanCacheAll = FALSE; cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */ - + /* Can not set i_flags here - they get immediately overwritten to zero by the VFS */ /* cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME;*/ @@ -309,26 +316,26 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m) if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) seq_printf(s, ",posixpaths"); if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) || - !(cifs_sb->tcon->ses->capabilities & CAP_UNIX)) + !(cifs_sb->tcon->unix_ext)) seq_printf(s, ",uid=%d", cifs_sb->mnt_uid); if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) || - !(cifs_sb->tcon->ses->capabilities & CAP_UNIX)) + !(cifs_sb->tcon->unix_ext)) seq_printf(s, ",gid=%d", cifs_sb->mnt_gid); - seq_printf(s, ",rsize=%d",cifs_sb->rsize); - seq_printf(s, ",wsize=%d",cifs_sb->wsize); + seq_printf(s, ",rsize=%d", cifs_sb->rsize); + seq_printf(s, ",wsize=%d", cifs_sb->wsize); } return 0; } #ifdef CONFIG_CIFS_QUOTA -int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid, - struct fs_disk_quota * pdquota) +int cifs_xquota_set(struct super_block *sb, int quota_type, qid_t qid, + struct fs_disk_quota *pdquota) { int xid; int rc = 0; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); struct cifsTconInfo *pTcon; - + if (cifs_sb) pTcon = cifs_sb->tcon; else @@ -337,7 +344,7 @@ int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid, xid = GetXid(); if (pTcon) { - cFYI(1,("set type: 0x%x id: %d",quota_type,qid)); + cFYI(1, ("set type: 0x%x id: %d", quota_type, qid)); } else { return -EIO; } @@ -346,8 +353,8 @@ int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid, return rc; } -int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid, - struct fs_disk_quota * pdquota) +int cifs_xquota_get(struct super_block *sb, int quota_type, qid_t qid, + struct fs_disk_quota *pdquota) { int xid; int rc = 0; @@ -361,7 +368,7 @@ int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid, xid = GetXid(); if (pTcon) { - cFYI(1,("set type: 0x%x id: %d",quota_type,qid)); + cFYI(1, ("set type: 0x%x id: %d", quota_type, qid)); } else { rc = -EIO; } @@ -370,9 +377,9 @@ int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid, return rc; } -int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation) +int cifs_xstate_set(struct super_block *sb, unsigned int flags, int operation) { - int xid; + int xid; int rc = 0; struct cifs_sb_info *cifs_sb = CIFS_SB(sb); struct cifsTconInfo *pTcon; @@ -384,7 +391,7 @@ int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation) xid = GetXid(); if (pTcon) { - cFYI(1,("flags: 0x%x operation: 0x%x",flags,operation)); + cFYI(1, ("flags: 0x%x operation: 0x%x", flags, operation)); } else { rc = -EIO; } @@ -393,7 +400,7 @@ int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation) return rc; } -int cifs_xstate_get(struct super_block * sb, struct fs_quota_stat *qstats) +int cifs_xstate_get(struct super_block *sb, struct fs_quota_stat *qstats) { int xid; int rc = 0; @@ -407,7 +414,7 @@ int cifs_xstate_get(struct super_block * sb, struct fs_quota_stat *qstats) } xid = GetXid(); if (pTcon) { - cFYI(1,("pqstats %p",qstats)); + cFYI(1, ("pqstats %p", qstats)); } else { rc = -EIO; } @@ -424,10 +431,10 @@ static struct quotactl_ops cifs_quotactl_ops = { }; #endif -static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags) +static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags) { struct cifs_sb_info *cifs_sb; - struct cifsTconInfo * tcon; + struct cifsTconInfo *tcon; if (!(flags & MNT_FORCE)) return; @@ -445,9 +452,8 @@ static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags) /* cancel_brl_requests(tcon); */ /* BB mark all brl mids as exiting */ /* cancel_notify_requests(tcon); */ - if (tcon->ses && tcon->ses->server) - { - cFYI(1,("wake up tasks now - umount begin not complete")); + if (tcon->ses && tcon->ses->server) { + cFYI(1, ("wake up tasks now - umount begin not complete")); wake_up_all(&tcon->ses->server->request_q); wake_up_all(&tcon->ses->server->response_q); msleep(1); /* yield */ @@ -480,10 +486,11 @@ static const struct super_operations cifs_super_ops = { .statfs = cifs_statfs, .alloc_inode = cifs_alloc_inode, .destroy_inode = cifs_destroy_inode, -/* .drop_inode = generic_delete_inode, - .delete_inode = cifs_delete_inode, *//* Do not need the above two functions - unless later we add lazy close of inodes or unless the kernel forgets to call - us with the same number of releases (closes) as opens */ +/* .drop_inode = generic_delete_inode, + .delete_inode = cifs_delete_inode, */ /* Do not need above two + functions unless later we add lazy close of inodes or unless the + kernel forgets to call us with the same number of releases (closes) + as opens */ .show_options = cifs_show_options, .umount_begin = cifs_umount_begin, .remount_fs = cifs_remount, @@ -586,11 +593,11 @@ const struct inode_operations cifs_file_inode_ops = { .getxattr = cifs_getxattr, .listxattr = cifs_listxattr, .removexattr = cifs_removexattr, -#endif +#endif }; const struct inode_operations cifs_symlink_inode_ops = { - .readlink = generic_readlink, + .readlink = generic_readlink, .follow_link = cifs_follow_link, .put_link = cifs_put_link, .permission = cifs_permission, @@ -602,7 +609,7 @@ const struct inode_operations cifs_symlink_inode_ops = { .getxattr = cifs_getxattr, .listxattr = cifs_listxattr, .removexattr = cifs_removexattr, -#endif +#endif }; const struct file_operations cifs_file_ops = { @@ -628,7 +635,7 @@ const struct file_operations cifs_file_ops = { }; const struct file_operations cifs_file_direct_ops = { - /* no mmap, no aio, no readv - + /* no mmap, no aio, no readv - BB reevaluate whether they can be done with directio, no cache */ .read = cifs_user_read, .write = cifs_user_write, @@ -668,7 +675,7 @@ const struct file_operations cifs_file_nobrl_ops = { }; const struct file_operations cifs_file_direct_nobrl_ops = { - /* no mmap, no aio, no readv - + /* no mmap, no aio, no readv - BB reevaluate whether they can be done with directio, no cache */ .read = cifs_user_read, .write = cifs_user_write, @@ -693,11 +700,11 @@ const struct file_operations cifs_dir_ops = { #ifdef CONFIG_CIFS_EXPERIMENTAL .dir_notify = cifs_dir_notify, #endif /* CONFIG_CIFS_EXPERIMENTAL */ - .ioctl = cifs_ioctl, + .ioctl = cifs_ioctl, }; static void -cifs_init_once(void *inode, struct kmem_cache * cachep, unsigned long flags) +cifs_init_once(void *inode, struct kmem_cache *cachep, unsigned long flags) { struct cifsInodeInfo *cifsi = inode; @@ -749,7 +756,7 @@ cifs_init_request_bufs(void) cifs_min_rcv = 1; else if (cifs_min_rcv > 64) { cifs_min_rcv = 64; - cERROR(1,("cifs_min_rcv set to maximum (64)")); + cERROR(1, ("cifs_min_rcv set to maximum (64)")); } cifs_req_poolp = mempool_create_slab_pool(cifs_min_rcv, @@ -762,25 +769,25 @@ cifs_init_request_bufs(void) /* MAX_CIFS_SMALL_BUFFER_SIZE bytes is enough for most SMB responses and almost all handle based requests (but not write response, nor is it sufficient for path based requests). A smaller size would have - been more efficient (compacting multiple slab items on one 4k page) + been more efficient (compacting multiple slab items on one 4k page) for the case in which debug was on, but this larger size allows more SMBs to use small buffer alloc and is still much more - efficient to alloc 1 per page off the slab compared to 17K (5page) + efficient to alloc 1 per page off the slab compared to 17K (5page) alloc of large cifs buffers even when page debugging is on */ cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq", - MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN, + MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN, NULL, NULL); if (cifs_sm_req_cachep == NULL) { mempool_destroy(cifs_req_poolp); kmem_cache_destroy(cifs_req_cachep); - return -ENOMEM; + return -ENOMEM; } if (cifs_min_small < 2) cifs_min_small = 2; else if (cifs_min_small > 256) { cifs_min_small = 256; - cFYI(1,("cifs_min_small set to maximum (256)")); + cFYI(1, ("cifs_min_small set to maximum (256)")); } cifs_sm_req_poolp = mempool_create_slab_pool(cifs_min_small, @@ -841,41 +848,43 @@ cifs_destroy_mids(void) kmem_cache_destroy(cifs_oplock_cachep); } -static int cifs_oplock_thread(void * dummyarg) +static int cifs_oplock_thread(void *dummyarg) { - struct oplock_q_entry * oplock_item; + struct oplock_q_entry *oplock_item; struct cifsTconInfo *pTcon; - struct inode * inode; + struct inode *inode; __u16 netfid; int rc; + set_freezable(); do { - if (try_to_freeze()) + if (try_to_freeze()) continue; - + spin_lock(&GlobalMid_Lock); if (list_empty(&GlobalOplock_Q)) { spin_unlock(&GlobalMid_Lock); set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(39*HZ); } else { - oplock_item = list_entry(GlobalOplock_Q.next, + oplock_item = list_entry(GlobalOplock_Q.next, struct oplock_q_entry, qhead); if (oplock_item) { - cFYI(1,("found oplock item to write out")); + cFYI(1, ("found oplock item to write out")); pTcon = oplock_item->tcon; inode = oplock_item->pinode; netfid = oplock_item->netfid; spin_unlock(&GlobalMid_Lock); DeleteOplockQEntry(oplock_item); /* can not grab inode sem here since it would - deadlock when oplock received on delete + deadlock when oplock received on delete since vfs_unlink holds the i_mutex across the call */ /* mutex_lock(&inode->i_mutex);*/ if (S_ISREG(inode->i_mode)) { rc = filemap_fdatawrite(inode->i_mapping); - if (CIFS_I(inode)->clientCanCacheRead == 0) { + if (CIFS_I(inode)->clientCanCacheRead + == 0) { filemap_fdatawait(inode->i_mapping); invalidate_remote_inode(inode); } @@ -884,20 +893,22 @@ static int cifs_oplock_thread(void * dummyarg) /* mutex_unlock(&inode->i_mutex);*/ if (rc) CIFS_I(inode)->write_behind_rc = rc; - cFYI(1,("Oplock flush inode %p rc %d",inode,rc)); - - /* releasing a stale oplock after recent reconnection - of smb session using a now incorrect file - handle is not a data integrity issue but do - not bother sending an oplock release if session - to server still is disconnected since oplock + cFYI(1, ("Oplock flush inode %p rc %d", + inode, rc)); + + /* releasing stale oplock after recent reconnect + of smb session using a now incorrect file + handle is not a data integrity issue but do + not bother sending an oplock release if session + to server still is disconnected since oplock already released by the server in that case */ if (pTcon->tidStatus != CifsNeedReconnect) { rc = CIFSSMBLock(0, pTcon, netfid, - 0 /* len */ , 0 /* offset */, 0, + 0 /* len */ , 0 /* offset */, 0, 0, LOCKING_ANDX_OPLOCK_RELEASE, 0 /* wait flag */); - cFYI(1,("Oplock release rc = %d ",rc)); + cFYI(1, + ("Oplock release rc = %d ", rc)); } } else spin_unlock(&GlobalMid_Lock); @@ -909,7 +920,7 @@ static int cifs_oplock_thread(void * dummyarg) return 0; } -static int cifs_dnotify_thread(void * dummyarg) +static int cifs_dnotify_thread(void *dummyarg) { struct list_head *tmp; struct cifsSesInfo *ses; @@ -924,9 +935,9 @@ static int cifs_dnotify_thread(void * dummyarg) to be woken up and wakeq so the thread can wake up and error out */ list_for_each(tmp, &GlobalSMBSessionList) { - ses = list_entry(tmp, struct cifsSesInfo, + ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); - if (ses && ses->server && + if (ses && ses->server && atomic_read(&ses->server->inFlight)) wake_up_all(&ses->server->response_q); } @@ -950,13 +961,13 @@ init_cifs(void) #ifdef CONFIG_CIFS_EXPERIMENTAL INIT_LIST_HEAD(&GlobalDnotifyReqList); INIT_LIST_HEAD(&GlobalDnotifyRsp_Q); -#endif +#endif /* * Initialize Global counters */ atomic_set(&sesInfoAllocCount, 0); atomic_set(&tconInfoAllocCount, 0); - atomic_set(&tcpSesAllocCount,0); + atomic_set(&tcpSesAllocCount, 0); atomic_set(&tcpSesReconnectCount, 0); atomic_set(&tconInfoReconnectCount, 0); @@ -977,10 +988,10 @@ init_cifs(void) if (cifs_max_pending < 2) { cifs_max_pending = 2; - cFYI(1,("cifs_max_pending set to min of 2")); + cFYI(1, ("cifs_max_pending set to min of 2")); } else if (cifs_max_pending > 256) { cifs_max_pending = 256; - cFYI(1,("cifs_max_pending set to max of 256")); + cFYI(1, ("cifs_max_pending set to max of 256")); } rc = cifs_init_inodecache(); @@ -1002,14 +1013,14 @@ init_cifs(void) oplockThread = kthread_run(cifs_oplock_thread, NULL, "cifsoplockd"); if (IS_ERR(oplockThread)) { rc = PTR_ERR(oplockThread); - cERROR(1,("error %d create oplock thread", rc)); + cERROR(1, ("error %d create oplock thread", rc)); goto out_unregister_filesystem; } dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd"); if (IS_ERR(dnotifyThread)) { rc = PTR_ERR(dnotifyThread); - cERROR(1,("error %d create dnotify thread", rc)); + cERROR(1, ("error %d create dnotify thread", rc)); goto out_stop_oplock_thread; } @@ -1035,7 +1046,7 @@ init_cifs(void) static void __exit exit_cifs(void) { - cFYI(0, ("In unregister ie exit_cifs")); + cFYI(0, ("exit_cifs")); #ifdef CONFIG_PROC_FS cifs_proc_clean(); #endif @@ -1048,9 +1059,10 @@ exit_cifs(void) } MODULE_AUTHOR("Steve French <sfrench@us.ibm.com>"); -MODULE_LICENSE("GPL"); /* combination of LGPL + GPL source behaves as GPL */ +MODULE_LICENSE("GPL"); /* combination of LGPL + GPL source behaves as GPL */ MODULE_DESCRIPTION - ("VFS to access servers complying with the SNIA CIFS Specification e.g. Samba and Windows"); + ("VFS to access servers complying with the SNIA CIFS Specification " + "e.g. Samba and Windows"); MODULE_VERSION(CIFS_VERSION); module_init(init_cifs) module_exit(exit_cifs) diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index c235d32ad4a8..a20de77a3856 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _CIFSFS_H @@ -43,9 +43,9 @@ extern void cifs_read_inode(struct inode *); /* Functions related to inodes */ extern const struct inode_operations cifs_dir_inode_ops; -extern int cifs_create(struct inode *, struct dentry *, int, +extern int cifs_create(struct inode *, struct dentry *, int, struct nameidata *); -extern struct dentry * cifs_lookup(struct inode *, struct dentry *, +extern struct dentry *cifs_lookup(struct inode *, struct dentry *, struct nameidata *); extern int cifs_unlink(struct inode *, struct dentry *); extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *); @@ -63,16 +63,16 @@ extern const struct inode_operations cifs_symlink_inode_ops; /* Functions related to files and directories */ extern const struct file_operations cifs_file_ops; -extern const struct file_operations cifs_file_direct_ops; /* if directio mount */ +extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */ extern const struct file_operations cifs_file_nobrl_ops; -extern const struct file_operations cifs_file_direct_nobrl_ops; /* if directio mount */ +extern const struct file_operations cifs_file_direct_nobrl_ops; /* no brlocks */ extern int cifs_open(struct inode *inode, struct file *file); extern int cifs_close(struct inode *inode, struct file *file); extern int cifs_closedir(struct inode *inode, struct file *file); extern ssize_t cifs_user_read(struct file *file, char __user *read_data, - size_t read_size, loff_t * poffset); + size_t read_size, loff_t *poffset); extern ssize_t cifs_user_write(struct file *file, const char __user *write_data, - size_t write_size, loff_t * poffset); + size_t write_size, loff_t *poffset); extern int cifs_lock(struct file *, int, struct file_lock *); extern int cifs_fsync(struct file *, struct dentry *, int); extern int cifs_flush(struct file *, fl_owner_t id); @@ -88,8 +88,9 @@ extern struct dentry_operations cifs_ci_dentry_ops; /* Functions related to symlinks */ extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd); -extern void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *); -extern int cifs_readlink(struct dentry *direntry, char __user *buffer, +extern void cifs_put_link(struct dentry *direntry, + struct nameidata *nd, void *); +extern int cifs_readlink(struct dentry *direntry, char __user *buffer, int buflen); extern int cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname); @@ -98,7 +99,7 @@ extern int cifs_setxattr(struct dentry *, const char *, const void *, size_t, int); extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t); extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); -extern int cifs_ioctl (struct inode * inode, struct file * filep, +extern int cifs_ioctl (struct inode *inode, struct file *filep, unsigned int command, unsigned long arg); -#define CIFS_VERSION "1.49" +#define CIFS_VERSION "1.50" #endif /* _CIFSFS_H */ diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 23655de2f4a4..b98742fc3b5a 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -1,7 +1,7 @@ /* * fs/cifs/cifsglob.h * - * Copyright (C) International Business Machines Corp., 2002,2006 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) * @@ -14,7 +14,7 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU Lesser General Public License for more details. - * + * */ #include <linux/in.h> #include <linux/in6.h> @@ -28,7 +28,7 @@ #define MAX_TREE_SIZE 2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1 #define MAX_SERVER_SIZE 15 -#define MAX_SHARE_SIZE 64 /* used to be 20 - this should still be enough */ +#define MAX_SHARE_SIZE 64 /* used to be 20, this should still be enough */ #define MAX_USERNAME_SIZE 32 /* 32 is to allow for 15 char names + null termination then *2 for unicode versions */ #define MAX_PASSWORD_SIZE 16 @@ -38,13 +38,13 @@ /* * MAX_REQ is the maximum number of requests that WE will send * on one socket concurently. It also matches the most common - * value of max multiplex returned by servers. We may + * value of max multiplex returned by servers. We may * eventually want to use the negotiated value (in case * future servers can handle more) when we are more confident that * we will not have problems oveloading the socket with pending * write data. */ -#define CIFS_MAX_REQ 50 +#define CIFS_MAX_REQ 50 #define SERVER_NAME_LENGTH 15 #define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1) @@ -104,6 +104,17 @@ enum protocolEnum { /* Netbios frames protocol not supported at this time */ }; +struct mac_key { + unsigned int len; + union { + char ntlm[CIFS_SESS_KEY_SIZE + 16]; + struct { + char key[16]; + struct ntlmv2_resp resp; + } ntlmv2; + } data; +}; + /* ***************************************************************** * Except the CIFS PDUs themselves all the @@ -120,13 +131,13 @@ struct TCP_Server_Info { struct sockaddr_in sockAddr; struct sockaddr_in6 sockAddr6; } addr; - wait_queue_head_t response_q; + wait_queue_head_t response_q; wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/ struct list_head pending_mid_q; void *Server_NlsInfo; /* BB - placeholder for future NLS info */ unsigned short server_codepage; /* codepage for the server */ unsigned long ip_address; /* IP addr for the server if known */ - enum protocolEnum protocolType; + enum protocolEnum protocolType; char versionMajor; char versionMinor; unsigned svlocal:1; /* local server or remote */ @@ -159,14 +170,15 @@ struct TCP_Server_Info { /* 16th byte of RFC1001 workstation name is always null */ char workstation_RFC1001_name[SERVER_NAME_LEN_WITH_NULL]; __u32 sequence_number; /* needed for CIFS PDU signature */ - char mac_signing_key[CIFS_SESS_KEY_SIZE + 16]; + struct mac_key mac_signing_key; + char ntlmv2_hash[16]; unsigned long lstrp; /* when we got last response from this server */ }; /* * The following is our shortcut to user information. We surface the uid, * and name. We always get the password on the fly in case it - * has changed. We also hang a list of sessions owned by this user off here. + * has changed. We also hang a list of sessions owned by this user off here. */ struct cifsUidInfo { struct list_head userList; @@ -197,11 +209,11 @@ struct cifsSesInfo { int Suid; /* remote smb uid */ uid_t linux_uid; /* local Linux uid */ int capabilities; - char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for + char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for TCP names - will ipv6 and sctp addresses fit? */ char userName[MAX_USERNAME_SIZE + 1]; - char * domainName; - char * password; + char *domainName; + char *password; }; /* no more than one of the following three session flags may be set */ #define CIFS_SES_NT4 1 @@ -213,7 +225,7 @@ struct cifsSesInfo { #define CIFS_SES_LANMAN 8 /* * there is one of these for each connection to a resource on a particular - * session + * session */ struct cifsTconInfo { struct list_head cifsConnectionList; @@ -269,7 +281,9 @@ struct cifsTconInfo { FILE_SYSTEM_UNIX_INFO fsUnixInfo; unsigned retry:1; unsigned nocase:1; - /* BB add field for back pointer to sb struct? */ + unsigned unix_ext:1; /* if off disable Linux extensions to CIFS protocol + for this mount even if server would support */ + /* BB add field for back pointer to sb struct(s)? */ }; /* @@ -291,9 +305,9 @@ struct cifs_search_info { __u16 entries_in_buffer; __u16 info_level; __u32 resume_key; - char * ntwrk_buf_start; - char * srch_entries_start; - char * presume_name; + char *ntwrk_buf_start; + char *srch_entries_start; + char *presume_name; unsigned int resume_name_len; unsigned endOfSearch:1; unsigned emptyDir:1; @@ -309,15 +323,15 @@ struct cifsFileInfo { __u16 netfid; /* file id from remote */ /* BB add lock scope info here if needed */ ; /* lock scope id (0 if none) */ - struct file * pfile; /* needed for writepage */ - struct inode * pInode; /* needed for oplock break */ + struct file *pfile; /* needed for writepage */ + struct inode *pInode; /* needed for oplock break */ struct mutex lock_mutex; struct list_head llist; /* list of byte range locks we have. */ unsigned closePend:1; /* file is marked to close */ unsigned invalidHandle:1; /* file closed via session abend */ atomic_t wrtPending; /* handle in use - defer close */ struct semaphore fh_sem; /* prevents reopen race after dead ses*/ - char * search_resume_name; /* BB removeme BB */ + char *search_resume_name; /* BB removeme BB */ struct cifs_search_info srch_inf; }; @@ -327,7 +341,7 @@ struct cifsFileInfo { struct cifsInodeInfo { struct list_head lockList; - /* BB add in lists for dirty pages - i.e. write caching info for oplock */ + /* BB add in lists for dirty pages i.e. write caching info for oplock */ struct list_head openFileList; int write_behind_rc; __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */ @@ -381,9 +395,9 @@ static inline void cifs_stats_bytes_read(struct cifsTconInfo *tcon, } #else -#define cifs_stats_inc(field) do {} while(0) -#define cifs_stats_bytes_written(tcon, bytes) do {} while(0) -#define cifs_stats_bytes_read(tcon, bytes) do {} while(0) +#define cifs_stats_inc(field) do {} while (0) +#define cifs_stats_bytes_written(tcon, bytes) do {} while (0) +#define cifs_stats_bytes_read(tcon, bytes) do {} while (0) #endif @@ -410,8 +424,8 @@ struct mid_q_entry { struct oplock_q_entry { struct list_head qhead; - struct inode * pinode; - struct cifsTconInfo * tcon; + struct inode *pinode; + struct cifsTconInfo *tcon; __u16 netfid; }; @@ -426,7 +440,7 @@ struct dir_notify_req { __u16 netfid; __u32 filter; /* CompletionFilter (for multishot) */ int multishot; - struct file * pfile; + struct file *pfile; }; #define MID_FREE 0 @@ -464,7 +478,7 @@ require use of the stronger protocol */ #define CIFSSEC_MUST_LANMAN 0x10010 #define CIFSSEC_MUST_PLNTXT 0x20020 #define CIFSSEC_MASK 0x37037 /* current flags supported if weak */ -#else +#else #define CIFSSEC_MASK 0x07007 /* flags supported if no weak config */ #endif /* WEAK_PW_HASH */ #define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */ @@ -502,7 +516,7 @@ require use of the stronger protocol */ * ---------- * sesSem operations on smb session * tconSem operations on tree connection - * fh_sem file handle reconnection operations + * fh_sem file handle reconnection operations * ****************************************************************************/ @@ -515,7 +529,7 @@ require use of the stronger protocol */ /* * The list of servers that did not respond with NT LM 0.12. * This list helps improve performance and eliminate the messages indicating - * that we had a communications error talking to the server in this list. + * that we had a communications error talking to the server in this list. */ /* Feature not supported */ /* GLOBAL_EXTERN struct servers_not_supported *NotSuppList; */ @@ -568,12 +582,12 @@ GLOBAL_EXTERN atomic_t midCount; /* Misc globals */ GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions to be established on existing mount if we - have the uid/password or Kerberos credential + have the uid/password or Kerberos credential or equivalent for current user */ GLOBAL_EXTERN unsigned int oplockEnabled; GLOBAL_EXTERN unsigned int experimEnabled; GLOBAL_EXTERN unsigned int lookupCacheEnabled; -GLOBAL_EXTERN unsigned int extended_security; /* if on, session setup sent +GLOBAL_EXTERN unsigned int extended_security; /* if on, session setup sent with more secure ntlmssp2 challenge/resp */ GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */ GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/ diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index d619ca7d1416..6a2056e58ceb 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -144,7 +144,7 @@ #define SMBOPEN_OAPPEND 0x0001 /* - * SMB flag definitions + * SMB flag definitions */ #define SMBFLG_EXTD_LOCK 0x01 /* server supports lock-read write-unlock smb */ #define SMBFLG_RCV_POSTED 0x02 /* obsolete */ @@ -157,9 +157,9 @@ #define SMBFLG_RESPONSE 0x80 /* this PDU is a response from server */ /* - * SMB flag2 definitions + * SMB flag2 definitions */ -#define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3) +#define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3) path names in response */ #define SMBFLG2_KNOWS_EAS cpu_to_le16(2) #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4) @@ -260,7 +260,7 @@ #define ATTR_SPARSE 0x0200 #define ATTR_REPARSE 0x0400 #define ATTR_COMPRESSED 0x0800 -#define ATTR_OFFLINE 0x1000 /* ie file not immediately available - +#define ATTR_OFFLINE 0x1000 /* ie file not immediately available - on offline storage */ #define ATTR_NOT_CONTENT_INDEXED 0x2000 #define ATTR_ENCRYPTED 0x4000 @@ -300,7 +300,7 @@ #define CREATE_DELETE_ON_CLOSE 0x00001000 #define CREATE_OPEN_BY_ID 0x00002000 #define OPEN_REPARSE_POINT 0x00200000 -#define CREATE_OPTIONS_MASK 0x007FFFFF +#define CREATE_OPTIONS_MASK 0x007FFFFF #define CREATE_OPTION_SPECIAL 0x20000000 /* system. NB not sent over wire */ /* ImpersonationLevel flags */ @@ -366,17 +366,19 @@ struct smb_hdr { #define pByteArea(smb_var) ((unsigned char *)smb_var + sizeof(struct smb_hdr) + (2* smb_var->WordCount) + 2 ) /* - * Computer Name Length + * Computer Name Length (since Netbios name was length 16 with last byte 0x20) + * No longer as important, now that TCP names are more commonly used to + * resolve hosts. */ #define CNLEN 15 /* - * Share Name Length @S8A - * Note: This length is limited by the SMB used to get @S8A - * the Share info. NetShareEnum only returns 13 @S8A - * chars, including the null termination. @S8A + * Share Name Length (SNLEN) + * Note: This length was limited by the SMB used to get + * the Share info. NetShareEnum only returned 13 + * chars, including the null termination. + * This was removed because it no longer is limiting. */ -#define SNLEN 12 /*@S8A */ /* * Comment Length @@ -394,8 +396,8 @@ struct smb_hdr { * * The Naming convention is the lower case version of the * smb command code name for the struct and this is typedef to the - * uppercase version of the same name with the prefix SMB_ removed - * for brevity. Although typedefs are not commonly used for + * uppercase version of the same name with the prefix SMB_ removed + * for brevity. Although typedefs are not commonly used for * structure definitions in the Linux kernel, their use in the * CIFS standards document, which this code is based on, may * make this one of the cases where typedefs for structures make @@ -403,7 +405,7 @@ struct smb_hdr { * Typedefs can always be removed later if they are too distracting * and they are only used for the CIFSs PDUs themselves, not * internal cifs vfs structures - * + * */ typedef struct negotiate_req { @@ -511,7 +513,7 @@ typedef union smb_com_session_setup_andx { unsigned char SecurityBlob[1]; /* followed by */ /* STRING NativeOS */ /* STRING NativeLanMan */ - } __attribute__((packed)) req; /* NTLM request format (with + } __attribute__((packed)) req; /* NTLM request format (with extended security */ struct { /* request format */ @@ -549,7 +551,7 @@ typedef union smb_com_session_setup_andx { /* unsigned char * NativeOS; */ /* unsigned char * NativeLanMan; */ /* unsigned char * PrimaryDomain; */ - } __attribute__((packed)) resp; /* NTLM response + } __attribute__((packed)) resp; /* NTLM response (with or without extended sec) */ struct { /* request format */ @@ -618,7 +620,7 @@ struct ntlmv2_resp { #define CAP_NT_SMBS 0x00000010 #define CAP_STATUS32 0x00000040 #define CAP_LEVEL_II_OPLOCKS 0x00000080 -#define CAP_NT_FIND 0x00000200 /* reserved should be zero +#define CAP_NT_FIND 0x00000200 /* reserved should be zero (because NT_SMBs implies the same thing?) */ #define CAP_BULK_TRANSFER 0x20000000 #define CAP_EXTENDED_SECURITY 0x80000000 @@ -676,7 +678,7 @@ typedef struct smb_com_logoff_andx_rsp { __u16 ByteCount; } __attribute__((packed)) LOGOFF_ANDX_RSP; -typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on +typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on tree_connect PDU to effect disconnect */ /* tdis is probably simplest SMB PDU */ struct { @@ -712,6 +714,7 @@ typedef struct smb_com_findclose_req { #define REQ_OPLOCK 0x00000002 #define REQ_BATCHOPLOCK 0x00000004 #define REQ_OPENDIRONLY 0x00000008 +#define REQ_EXTENDED_INFO 0x00000010 typedef struct smb_com_open_req { /* also handles create */ struct smb_hdr hdr; /* wct = 24 */ @@ -799,27 +802,28 @@ typedef struct smb_com_openx_rsp { __u32 FileId; __u16 Reserved; __u16 ByteCount; -} __attribute__((packed)) OPENX_RSP; +} __attribute__((packed)) OPENX_RSP; /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */ /* Legacy write request for older servers */ typedef struct smb_com_writex_req { - struct smb_hdr hdr; /* wct = 12 */ - __u8 AndXCommand; - __u8 AndXReserved; - __le16 AndXOffset; - __u16 Fid; - __le32 OffsetLow; - __u32 Reserved; /* Timeout */ - __le16 WriteMode; /* 1 = write through */ - __le16 Remaining; - __le16 Reserved2; - __le16 DataLengthLow; - __le16 DataOffset; - __le16 ByteCount; - __u8 Pad; /* BB check for whether padded to DWORD boundary and optimum performance here */ - char Data[0]; + struct smb_hdr hdr; /* wct = 12 */ + __u8 AndXCommand; + __u8 AndXReserved; + __le16 AndXOffset; + __u16 Fid; + __le32 OffsetLow; + __u32 Reserved; /* Timeout */ + __le16 WriteMode; /* 1 = write through */ + __le16 Remaining; + __le16 Reserved2; + __le16 DataLengthLow; + __le16 DataOffset; + __le16 ByteCount; + __u8 Pad; /* BB check for whether padded to DWORD + boundary and optimum performance here */ + char Data[0]; } __attribute__((packed)) WRITEX_REQ; typedef struct smb_com_write_req { @@ -837,7 +841,8 @@ typedef struct smb_com_write_req { __le16 DataOffset; __le32 OffsetHigh; __le16 ByteCount; - __u8 Pad; /* BB check for whether padded to DWORD boundary and optimum performance here */ + __u8 Pad; /* BB check for whether padded to DWORD + boundary and optimum performance here */ char Data[0]; } __attribute__((packed)) WRITE_REQ; @@ -855,17 +860,17 @@ typedef struct smb_com_write_rsp { /* legacy read request for older servers */ typedef struct smb_com_readx_req { - struct smb_hdr hdr; /* wct = 10 */ - __u8 AndXCommand; - __u8 AndXReserved; - __le16 AndXOffset; - __u16 Fid; - __le32 OffsetLow; - __le16 MaxCount; - __le16 MinCount; /* obsolete */ - __le32 Reserved; - __le16 Remaining; - __le16 ByteCount; + struct smb_hdr hdr; /* wct = 10 */ + __u8 AndXCommand; + __u8 AndXReserved; + __le16 AndXOffset; + __u16 Fid; + __le32 OffsetLow; + __le16 MaxCount; + __le16 MinCount; /* obsolete */ + __le32 Reserved; + __le16 Remaining; + __le16 ByteCount; } __attribute__((packed)) READX_REQ; typedef struct smb_com_read_req { @@ -896,7 +901,8 @@ typedef struct smb_com_read_rsp { __le16 DataLengthHigh; __u64 Reserved2; __u16 ByteCount; - __u8 Pad; /* BB check for whether padded to DWORD boundary and optimum performance here */ + __u8 Pad; /* BB check for whether padded to DWORD + boundary and optimum performance here */ char Data[1]; } __attribute__((packed)) READ_RSP; @@ -967,7 +973,7 @@ typedef struct smb_com_rename_req { #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */ #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */ #define COPY_VERIFY_WRITES 0x0010 -#define COPY_TREE 0x0020 +#define COPY_TREE 0x0020 typedef struct smb_com_copy_req { struct smb_hdr hdr; /* wct = 3 */ @@ -975,7 +981,7 @@ typedef struct smb_com_copy_req { __le16 OpenFunction; __le16 Flags; __le16 ByteCount; - __u8 BufferFormat; /* 4 = ASCII or Unicode */ + __u8 BufferFormat; /* 4 = ASCII or Unicode */ unsigned char OldFileName[1]; /* followed by __u8 BufferFormat2 */ /* followed by NewFileName string */ @@ -1083,28 +1089,28 @@ typedef struct smb_com_setattr_rsp { /*******************************************************/ /* NT Transact structure defintions follow */ -/* Currently only ioctl, acl (get security descriptor) */ +/* Currently only ioctl, acl (get security descriptor) */ /* and notify are implemented */ /*******************************************************/ typedef struct smb_com_ntransact_req { - struct smb_hdr hdr; /* wct >= 19 */ - __u8 MaxSetupCount; - __u16 Reserved; - __le32 TotalParameterCount; - __le32 TotalDataCount; - __le32 MaxParameterCount; - __le32 MaxDataCount; - __le32 ParameterCount; - __le32 ParameterOffset; - __le32 DataCount; - __le32 DataOffset; - __u8 SetupCount; /* four setup words follow subcommand */ - /* SNIA spec incorrectly included spurious pad here */ - __le16 SubCommand; /* 2 = IOCTL/FSCTL */ - /* SetupCount words follow then */ - __le16 ByteCount; - __u8 Pad[3]; - __u8 Parms[0]; + struct smb_hdr hdr; /* wct >= 19 */ + __u8 MaxSetupCount; + __u16 Reserved; + __le32 TotalParameterCount; + __le32 TotalDataCount; + __le32 MaxParameterCount; + __le32 MaxDataCount; + __le32 ParameterCount; + __le32 ParameterOffset; + __le32 DataCount; + __le32 DataOffset; + __u8 SetupCount; /* four setup words follow subcommand */ + /* SNIA spec incorrectly included spurious pad here */ + __le16 SubCommand; /* 2 = IOCTL/FSCTL */ + /* SetupCount words follow then */ + __le16 ByteCount; + __u8 Pad[3]; + __u8 Parms[0]; } __attribute__((packed)) NTRANSACT_REQ; typedef struct smb_com_ntransact_rsp { @@ -1120,7 +1126,7 @@ typedef struct smb_com_ntransact_rsp { __le32 DataDisplacement; __u8 SetupCount; /* 0 */ __u16 ByteCount; - /* __u8 Pad[3]; */ + /* __u8 Pad[3]; */ /* parms and data follow */ } __attribute__((packed)) NTRANSACT_RSP; @@ -1215,7 +1221,7 @@ typedef struct smb_com_transaction_change_notify_req { /* __u8 Data[1];*/ } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ; -/* BB eventually change to use generic ntransact rsp struct +/* BB eventually change to use generic ntransact rsp struct and validation routine */ typedef struct smb_com_transaction_change_notify_rsp { struct smb_hdr hdr; /* wct = 18 */ @@ -1262,7 +1268,7 @@ struct file_notify_information { __le32 Action; __le32 FileNameLength; __u8 FileName[0]; -} __attribute__((packed)); +} __attribute__((packed)); struct reparse_data { __u32 ReparseTag; @@ -1331,7 +1337,7 @@ struct trans2_resp { __u8 Reserved1; /* SetupWords[SetupCount]; __u16 ByteCount; - __u16 Reserved2;*/ + __u16 Reserved2;*/ /* data area follows */ } __attribute__((packed)); @@ -1370,9 +1376,9 @@ struct smb_t2_rsp { #define SMB_QUERY_FILE_INTERNAL_INFO 0x3ee #define SMB_QUERY_FILE_ACCESS_INFO 0x3f0 #define SMB_QUERY_FILE_NAME_INFO2 0x3f1 /* 0x30 bytes */ -#define SMB_QUERY_FILE_POSITION_INFO 0x3f6 +#define SMB_QUERY_FILE_POSITION_INFO 0x3f6 #define SMB_QUERY_FILE_MODE_INFO 0x3f8 -#define SMB_QUERY_FILE_ALGN_INFO 0x3f9 +#define SMB_QUERY_FILE_ALGN_INFO 0x3f9 #define SMB_SET_FILE_BASIC_INFO 0x101 @@ -1506,35 +1512,35 @@ struct smb_com_transaction2_sfi_req { __u16 Pad1; __u16 Fid; __le16 InformationLevel; - __u16 Reserved4; + __u16 Reserved4; } __attribute__((packed)); struct smb_com_transaction2_sfi_rsp { struct smb_hdr hdr; /* wct = 10 + SetupCount */ struct trans2_resp t2; __u16 ByteCount; - __u16 Reserved2; /* parameter word reserved - + __u16 Reserved2; /* parameter word reserved - present for infolevels > 100 */ } __attribute__((packed)); struct smb_t2_qfi_req { - struct smb_hdr hdr; - struct trans2_req t2; + struct smb_hdr hdr; + struct trans2_req t2; __u8 Pad; __u16 Fid; __le16 InformationLevel; } __attribute__((packed)); struct smb_t2_qfi_rsp { - struct smb_hdr hdr; /* wct = 10 + SetupCount */ - struct trans2_resp t2; - __u16 ByteCount; - __u16 Reserved2; /* parameter word reserved - - present for infolevels > 100 */ + struct smb_hdr hdr; /* wct = 10 + SetupCount */ + struct trans2_resp t2; + __u16 ByteCount; + __u16 Reserved2; /* parameter word reserved - + present for infolevels > 100 */ } __attribute__((packed)); /* - * Flags on T2 FINDFIRST and FINDNEXT + * Flags on T2 FINDFIRST and FINDNEXT */ #define CIFS_SEARCH_CLOSE_ALWAYS 0x0001 #define CIFS_SEARCH_CLOSE_AT_END 0x0002 @@ -1743,7 +1749,9 @@ typedef struct smb_com_transaction2_get_dfs_refer_req { __u8 Reserved3; __le16 SubCommand; /* one setup word */ __le16 ByteCount; - __u8 Pad[3]; /* Win2K has sent 0x0F01 (max resp length perhaps?) followed by one byte pad - doesn't seem to matter though */ + __u8 Pad[3]; /* Win2K has sent 0x0F01 (max response length + perhaps?) followed by one byte pad - doesn't + seem to matter though */ __le16 MaxReferralLevel; char RequestFileName[1]; } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ; @@ -1752,7 +1760,10 @@ typedef struct dfs_referral_level_3 { __le16 VersionNumber; __le16 ReferralSize; __le16 ServerType; /* 0x0001 = CIFS server */ - __le16 ReferralFlags; /* or proximity - not clear which since always set to zero - SNIA spec says 0x01 means strip off PathConsumed chars before submitting RequestFileName to remote node */ + __le16 ReferralFlags; /* or proximity - not clear which since it is + always set to zero - SNIA spec says 0x01 + means strip off PathConsumed chars before + submitting RequestFileName to remote node */ __le16 TimeToLive; __le16 Proximity; __le16 DfsPathOffset; @@ -1778,11 +1789,13 @@ typedef struct smb_com_transaction_get_dfs_refer_rsp { #define DFSREF_STORAGE_SERVER 0x0002 /* IOCTL information */ -/* List of ioctl function codes that look to be of interest to remote clients like this. */ -/* Need to do some experimentation to make sure they all work remotely. */ -/* Some of the following such as the encryption/compression ones would be */ -/* invoked from tools via a specialized hook into the VFS rather than via the */ -/* standard vfs entry points */ +/* + * List of ioctl function codes that look to be of interest to remote clients + * like this one. Need to do some experimentation to make sure they all work + * remotely. Some of the following, such as the encryption/compression ones + * would be invoked from tools via a specialized hook into the VFS rather + * than via the standard vfs entry points + */ #define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000 #define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004 #define FSCTL_REQUEST_BATCH_OPLOCK 0x00090008 @@ -1811,7 +1824,7 @@ typedef struct smb_com_transaction_get_dfs_refer_rsp { /* ************************************************************************ * All structs for everything above the SMB PDUs themselves - * (such as the T2 level specific data) go here + * (such as the T2 level specific data) go here ************************************************************************ */ @@ -1857,7 +1870,7 @@ typedef struct { __le64 FreeAllocationUnits; __le32 SectorsPerAllocationUnit; __le32 BytesPerSector; -} __attribute__((packed)) FILE_SYSTEM_INFO; /* size info, level 0x103 */ +} __attribute__((packed)) FILE_SYSTEM_INFO; /* size info, level 0x103 */ typedef struct { __le32 fsid; @@ -1871,7 +1884,7 @@ typedef struct { __le16 MajorVersionNumber; __le16 MinorVersionNumber; __le64 Capability; -} __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extensions info, level 0x200 */ +} __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/ /* Version numbers for CIFS UNIX major and minor. */ #define CIFS_UNIX_MAJOR_VERSION 1 @@ -1885,16 +1898,20 @@ typedef struct { #define CIFS_UNIX_POSIX_PATHNAMES_CAP 0x00000010 /* Allow POSIX path chars */ #define CIFS_UNIX_POSIX_PATH_OPS_CAP 0x00000020 /* Allow new POSIX path based calls including posix open - and posix unlink */ + and posix unlink */ +#define CIFS_UNIX_LARGE_READ_CAP 0x00000040 /* support reads >128K (up + to 0xFFFF00 */ +#define CIFS_UNIX_LARGE_WRITE_CAP 0x00000080 + #ifdef CONFIG_CIFS_POSIX /* Can not set pathnames cap yet until we send new posix create SMB since otherwise server can treat such handles opened with older ntcreatex (by a new client which knows how to send posix path ops) as non-posix handles (can affect write behavior with byte range locks. We can add back in POSIX_PATH_OPS cap when Posix Create/Mkdir finished */ -/* #define CIFS_UNIX_CAP_MASK 0x0000003b */ -#define CIFS_UNIX_CAP_MASK 0x0000001b -#else +/* #define CIFS_UNIX_CAP_MASK 0x000000fb */ +#define CIFS_UNIX_CAP_MASK 0x000000db +#else #define CIFS_UNIX_CAP_MASK 0x00000013 #endif /* CONFIG_CIFS_POSIX */ @@ -1904,10 +1921,10 @@ typedef struct { typedef struct { /* For undefined recommended transfer size return -1 in that field */ __le32 OptimalTransferSize; /* bsize on some os, iosize on other os */ - __le32 BlockSize; + __le32 BlockSize; /* The next three fields are in terms of the block size. (above). If block size is unknown, 4096 would be a - reasonable block size for a server to report. + reasonable block size for a server to report. Note that returning the blocks/blocksavail removes need to make a second call (to QFSInfo level 0x103 to get this info. UserBlockAvail is typically less than or equal to BlocksAvail, @@ -2062,9 +2079,9 @@ struct file_alt_name_info { struct file_stream_info { __le32 number_of_streams; /* BB check sizes and verify location */ - /* followed by info on streams themselves + /* followed by info on streams themselves u64 size; - u64 allocation_size + u64 allocation_size stream info */ }; /* level 0x109 */ @@ -2083,7 +2100,7 @@ struct cifs_posix_ace { /* access control entry (ACE) */ __u8 cifs_e_tag; __u8 cifs_e_perm; __le64 cifs_uid; /* or gid */ -} __attribute__((packed)); +} __attribute__((packed)); struct cifs_posix_acl { /* access conrol list (ACL) */ __le16 version; @@ -2138,6 +2155,12 @@ typedef struct { /* struct following varies based on requested level */ } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */ +#define SMB_POSIX_UNLINK_FILE_TARGET 0 +#define SMB_POSIX_UNLINK_DIRECTORY_TARGET 1 + +struct unlink_psx_rq { /* level 0x20a SetPathInfo */ + __le16 type; +} __attribute__((packed)); struct file_internal_info { __u64 UniqueId; /* inode number */ @@ -2154,7 +2177,7 @@ struct file_attrib_tag { /********************************************************/ -/* FindFirst/FindNext transact2 data buffer formats */ +/* FindFirst/FindNext transact2 data buffer formats */ /********************************************************/ typedef struct { @@ -2232,7 +2255,7 @@ typedef struct { __le64 EndOfFile; __le64 AllocationSize; __le32 ExtFileAttributes; - __le32 FileNameLength; + __le32 FileNameLength; __le32 EaSize; /* length of the xattrs */ __u8 ShortNameLength; __u8 Reserved; @@ -2259,7 +2282,7 @@ typedef struct { struct win_dev { unsigned char type[8]; /* IntxCHR or IntxBLK */ __le64 major; - __le64 minor; + __le64 minor; } __attribute__((packed)); struct gea { @@ -2291,36 +2314,36 @@ struct fealist { struct data_blob { __u8 *data; size_t length; - void (*free) (struct data_blob * data_blob); + void (*free) (struct data_blob *data_blob); } __attribute__((packed)); #ifdef CONFIG_CIFS_POSIX -/* +/* For better POSIX semantics from Linux client, (even better than the existing CIFS Unix Extensions) we need updated PDUs for: - + 1) PosixCreateX - to set and return the mode, inode#, device info and perhaps add a CreateDevice - to create Pipes and other special .inodes Also note POSIX open flags - 2) Close - to return the last write time to do cache across close + 2) Close - to return the last write time to do cache across close more safely - 3) FindFirst return unique inode number - what about resume key, two + 3) FindFirst return unique inode number - what about resume key, two forms short (matches readdir) and full (enough info to cache inodes) 4) Mkdir - set mode - - And under consideration: + + And under consideration: 5) FindClose2 (return nanosecond timestamp ??) - 6) Use nanosecond timestamps throughout all time fields if + 6) Use nanosecond timestamps throughout all time fields if corresponding attribute flag is set 7) sendfile - handle based copy 8) Direct i/o 9) Misc fcntls? - + what about fixing 64 bit alignment - + There are also various legacy SMB/CIFS requests used as is - + From existing Lanman and NTLM dialects: -------------------------------------- NEGOTIATE @@ -2341,48 +2364,48 @@ struct data_blob { (BB verify that never need to set allocation size) SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via Unix ext?) - + COPY (note support for copy across directories) - FUTURE, OPTIONAL setting/getting OS/2 EAs - FUTURE (BB can this handle setting Linux xattrs perfectly) - OPTIONAL dnotify - FUTURE, OPTIONAL quota - FUTURE, OPTIONAL - - Note that various requests implemented for NT interop such as + + Note that various requests implemented for NT interop such as NT_TRANSACT (IOCTL) QueryReparseInfo are unneeded to servers compliant with the CIFS POSIX extensions - + From CIFS Unix Extensions: ------------------------- T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2) T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK) - T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC) - BB check for missing inode fields - Actually need QUERY_FILE_UNIX_INFO since has inode num - BB what about a) blksize/blkbits/blocks + T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC) BB check for missing + inode fields + Actually a need QUERY_FILE_UNIX_INFO + since has inode num + BB what about a) blksize/blkbits/blocks b) i_version c) i_rdev d) notify mask? e) generation f) size_seqcount T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX - TRANS2_GET_DFS_REFERRAL - OPTIONAL but recommended + TRANS2_GET_DFS_REFERRAL - OPTIONAL but recommended T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL - - */ /* xsymlink is a symlink format (used by MacOS) that can be used - to save symlink info in a regular file when + to save symlink info in a regular file when mounted to operating systems that do not support the cifs Unix extensions or EAs (for xattr based symlinks). For such a file to be recognized - as containing symlink data: + as containing symlink data: - 1) file size must be 1067, + 1) file size must be 1067, 2) signature must begin file data, 3) length field must be set to ASCII representation - of a number which is less than or equal to 1024, + of a number which is less than or equal to 1024, 4) md5 must match that of the path data */ struct xsymlink { @@ -2393,10 +2416,10 @@ struct xsymlink { char length[4]; char cr1; /* \n */ /* md5 of valid subset of path ie path[0] through path[length-1] */ - __u8 md5[32]; + __u8 md5[32]; char cr2; /* \n */ /* if room left, then end with \n then 0x20s by convention but not required */ - char path[1024]; + char path[1024]; } __attribute__((packed)); typedef struct file_xattr_info { @@ -2405,7 +2428,8 @@ typedef struct file_xattr_info { __u32 xattr_value_len; char xattr_name[0]; /* followed by xattr_value[xattr_value_len], no pad */ -} __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute, info level 0x205 */ +} __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info + level 0x205 */ /* flags for chattr command */ @@ -2431,8 +2455,9 @@ typedef struct file_xattr_info { typedef struct file_chattr_info { __le64 mask; /* list of all possible attribute bits */ __le64 mode; /* list of actual attribute bits on this inode */ -} __attribute__((packed)) FILE_CHATTR_INFO; /* ext attributes (chattr, chflags) level 0x206 */ +} __attribute__((packed)) FILE_CHATTR_INFO; /* ext attributes + (chattr, chflags) level 0x206 */ -#endif +#endif #endif /* _CIFSPDU_H */ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 5d163e2b6143..04a69dafedba 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _CIFSPROTO_H #define _CIFSPROTO_H @@ -49,9 +49,9 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *, struct smb_hdr * /* out */ , int * /* bytes returned */ , const int long_op); extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *, - struct kvec *, int /* nvec to send */, + struct kvec *, int /* nvec to send */, int * /* type of buf returned */ , const int long_op); -extern int SendReceiveBlockingLock(const unsigned int /* xid */ , +extern int SendReceiveBlockingLock(const unsigned int /* xid */ , struct cifsTconInfo *, struct smb_hdr * /* input */ , struct smb_hdr * /* out */ , @@ -64,19 +64,19 @@ extern unsigned int smbCalcSize(struct smb_hdr *ptr); extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr); extern int decode_negTokenInit(unsigned char *security_blob, int length, enum securityEnum *secType); -extern int cifs_inet_pton(int, char * source, void *dst); +extern int cifs_inet_pton(int, char *source, void *dst); extern int map_smb_to_linux_error(struct smb_hdr *smb); extern void header_assemble(struct smb_hdr *, char /* command */ , const struct cifsTconInfo *, int /* length of fixed section (word count) in two byte units */); extern int small_smb_init_no_tc(const int smb_cmd, const int wct, struct cifsSesInfo *ses, - void ** request_buf); + void **request_buf); extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, - const int stage, + const int stage, const struct nls_table *nls_cp); extern __u16 GetNextMid(struct TCP_Server_Info *server); -extern struct oplock_q_entry * AllocOplockQEntry(struct inode *, u16, +extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16, struct cifsTconInfo *); extern void DeleteOplockQEntry(struct oplock_q_entry *); extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ ); @@ -85,12 +85,12 @@ extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time); extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time); extern int cifs_get_inode_info(struct inode **pinode, - const unsigned char *search_path, + const unsigned char *search_path, FILE_ALL_INFO * pfile_info, struct super_block *sb, int xid); extern int cifs_get_inode_info_unix(struct inode **pinode, const unsigned char *search_path, - struct super_block *sb,int xid); + struct super_block *sb, int xid); extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, const char *); @@ -98,8 +98,8 @@ extern int cifs_umount(struct super_block *, struct cifs_sb_info *); void cifs_proc_init(void); void cifs_proc_clean(void); -extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, - struct nls_table * nls_info); +extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, + struct nls_table *nls_info); extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses); extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, @@ -108,11 +108,11 @@ extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, const char *searchName, const struct nls_table *nls_codepage, - __u16 *searchHandle, struct cifs_search_info * psrch_inf, + __u16 *searchHandle, struct cifs_search_info *psrch_inf, int map, const char dirsep); extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, - __u16 searchHandle, struct cifs_search_info * psrch_inf); + __u16 searchHandle, struct cifs_search_info *psrch_inf); extern int CIFSFindClose(const int, struct cifsTconInfo *tcon, const __u16 search_handle); @@ -123,9 +123,9 @@ extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, int legacy /* whether to use old info level */, const struct nls_table *nls_codepage, int remap); extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - FILE_ALL_INFO * findData, - const struct nls_table *nls_codepage, int remap); + const unsigned char *searchName, + FILE_ALL_INFO *findData, + const struct nls_table *nls_codepage, int remap); extern int CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, @@ -143,13 +143,13 @@ extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, const struct nls_table *nls_codepage, int remap); extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, - const char *old_path, + const char *old_path, const struct nls_table *nls_codepage, - unsigned int *pnum_referrals, - unsigned char ** preferrals, + unsigned int *pnum_referrals, + unsigned char **preferrals, int remap); extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, - struct super_block * sb, struct smb_vol * vol); + struct super_block *sb, struct smb_vol *vol); extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData); extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, @@ -181,11 +181,11 @@ extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, - __u64 size, __u16 fileHandle,__u32 opener_pid, + __u64 size, __u16 fileHandle, __u32 opener_pid, int AllocSizeFlag); extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon, char *full_path, __u64 mode, __u64 uid, - __u64 gid, dev_t dev, + __u64 gid, dev_t dev, const struct nls_table *nls_codepage, int remap_special_chars); @@ -196,7 +196,10 @@ extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *name, const struct nls_table *nls_codepage, int remap_special_chars); - +extern int CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, + const char *name, __u16 type, + const struct nls_table *nls_codepage, + int remap_special_chars); extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *name, const struct nls_table *nls_codepage, @@ -205,8 +208,8 @@ extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, const char *fromName, const char *toName, const struct nls_table *nls_codepage, int remap_special_chars); -extern int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, - int netfid, char * target_name, +extern int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, + int netfid, char *target_name, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSCreateHardLink(const int xid, @@ -217,7 +220,7 @@ extern int CIFSCreateHardLink(const int xid, extern int CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, const char *fromName, const char *toName, - const struct nls_table *nls_codepage, + const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, @@ -228,7 +231,7 @@ extern int CIFSSMBUnixQuerySymLink(const int xid, const unsigned char *searchName, char *syminfo, const int buflen, const struct nls_table *nls_codepage); -extern int CIFSSMBQueryReparseLinkInfo(const int xid, +extern int CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, char *symlinkinfo, const int buflen, __u16 fid, @@ -244,35 +247,35 @@ extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, const int access_flags, const int omode, __u16 * netfid, int *pOplock, FILE_ALL_INFO *, const struct nls_table *nls_codepage, int remap); -extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, +extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, u32 posix_flags, __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, __u32 *pOplock, const char *name, - const struct nls_table *nls_codepage, int remap); + const struct nls_table *nls_codepage, int remap); extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, const int smb_file_id); extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, - const int netfid, unsigned int count, - const __u64 lseek, unsigned int *nbytes, char **buf, - int * return_buf_type); + const int netfid, unsigned int count, + const __u64 lseek, unsigned int *nbytes, char **buf, + int *return_buf_type); extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, const int netfid, const unsigned int count, const __u64 lseek, unsigned int *nbytes, - const char *buf, const char __user *ubuf, + const char *buf, const char __user *ubuf, const int long_op); extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, const int netfid, const unsigned int count, - const __u64 offset, unsigned int *nbytes, + const __u64 offset, unsigned int *nbytes, struct kvec *iov, const int nvec, const int long_op); extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, __u64 * inode_number, - const struct nls_table *nls_codepage, + const struct nls_table *nls_codepage, int remap_special_chars); extern int cifs_convertUCSpath(char *target, const __le16 *source, int maxlen, - const struct nls_table * codepage); -extern int cifsConvertToUCS(__le16 * target, const char *source, int maxlen, - const struct nls_table * cp, int mapChars); + const struct nls_table *codepage); +extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen, + const struct nls_table *cp, int mapChars); extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, const __u16 netfid, const __u64 len, @@ -281,7 +284,7 @@ extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, const int waitFlag); extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, const __u16 smb_file_id, const int get_flag, - const __u64 len, struct file_lock *, + const __u64 len, struct file_lock *, const __u16 lock_type, const int waitFlag); extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon); extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses); @@ -291,54 +294,56 @@ extern void sesInfoFree(struct cifsSesInfo *); extern struct cifsTconInfo *tconInfoAlloc(void); extern void tconInfoFree(struct cifsTconInfo *); -extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *,__u32 *); +extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *); extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *, __u32 *); -extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key, - __u32 expected_sequence_number); -extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass); -extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, +extern int cifs_verify_signature(struct smb_hdr *, + const struct mac_key *mac_key, + __u32 expected_sequence_number); +extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn, + const char *pass); +extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *, const struct nls_table *); extern void CalcNTLMv2_response(const struct cifsSesInfo *, char * ); -extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *, +extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *, const struct nls_table *); #ifdef CONFIG_CIFS_WEAK_PW_HASH -extern void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key); +extern void calc_lanman_hash(struct cifsSesInfo *ses, char *lnm_session_key); #endif /* CIFS_WEAK_PW_HASH */ extern int CIFSSMBCopy(int xid, struct cifsTconInfo *source_tcon, const char *fromName, const __u16 target_tid, const char *toName, const int flags, - const struct nls_table *nls_codepage, + const struct nls_table *nls_codepage, int remap_special_chars); -extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, - const int notify_subdirs,const __u16 netfid, - __u32 filter, struct file * file, int multishot, +extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, + const int notify_subdirs, const __u16 netfid, + __u32 filter, struct file *file, int multishot, const struct nls_table *nls_codepage); extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, char * EAData, + const unsigned char *searchName, char *EAData, size_t bufsize, const struct nls_table *nls_codepage, int remap_special_chars); -extern ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, - const unsigned char * searchName,const unsigned char * ea_name, - unsigned char * ea_value, size_t buf_size, +extern ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, + const unsigned char *searchName, const unsigned char *ea_name, + unsigned char *ea_value, size_t buf_size, const struct nls_table *nls_codepage, int remap_special_chars); -extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, - const char *fileName, const char * ea_name, - const void * ea_value, const __u16 ea_value_len, +extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, + const char *fileName, const char *ea_name, + const void *ea_value, const __u16 ea_value_len, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, char *acl_inf, const int buflen, const int acl_type /* ACCESS vs. DEFAULT */); extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - char *acl_inf, const int buflen,const int acl_type, + char *acl_inf, const int buflen, const int acl_type, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, const unsigned char *fileName, const char *local_acl, const int buflen, const int acl_type, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, - const int netfid, __u64 * pExtAttrBits, __u64 *pMask); + const int netfid, __u64 * pExtAttrBits, __u64 *pMask); #endif /* _CIFSPROTO_H */ diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 57419a176688..8eb102f940d4 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -48,7 +48,7 @@ static struct { {LANMAN_PROT, "\2LM1.2X002"}, {LANMAN2_PROT, "\2LANMAN2.1"}, #endif /* weak password hashing for legacy clients */ - {CIFS_PROT, "\2NT LM 0.12"}, + {CIFS_PROT, "\2NT LM 0.12"}, {POSIX_PROT, "\2POSIX 2"}, {BAD_PROT, "\2"} }; @@ -61,7 +61,7 @@ static struct { {LANMAN_PROT, "\2LM1.2X002"}, {LANMAN2_PROT, "\2LANMAN2.1"}, #endif /* weak password hashing for legacy clients */ - {CIFS_PROT, "\2NT LM 0.12"}, + {CIFS_PROT, "\2NT LM 0.12"}, {BAD_PROT, "\2"} }; #endif @@ -84,17 +84,17 @@ static struct { /* Mark as invalid, all open files on tree connections since they were closed when session to server was lost */ -static void mark_open_files_invalid(struct cifsTconInfo * pTcon) +static void mark_open_files_invalid(struct cifsTconInfo *pTcon) { struct cifsFileInfo *open_file = NULL; - struct list_head * tmp; - struct list_head * tmp1; + struct list_head *tmp; + struct list_head *tmp1; /* list all files open on tree connection and mark them invalid */ write_lock(&GlobalSMBSeslock); list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { - open_file = list_entry(tmp,struct cifsFileInfo, tlist); - if(open_file) { + open_file = list_entry(tmp, struct cifsFileInfo, tlist); + if (open_file) { open_file->invalidHandle = TRUE; } } @@ -113,75 +113,78 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for tcp and smb session status done differently for those three - in the calling routine */ - if(tcon) { - if(tcon->tidStatus == CifsExiting) { + if (tcon) { + if (tcon->tidStatus == CifsExiting) { /* only tree disconnect, open, and write, (and ulogoff which does not have tcon) are allowed as we start force umount */ - if((smb_command != SMB_COM_WRITE_ANDX) && - (smb_command != SMB_COM_OPEN_ANDX) && + if ((smb_command != SMB_COM_WRITE_ANDX) && + (smb_command != SMB_COM_OPEN_ANDX) && (smb_command != SMB_COM_TREE_DISCONNECT)) { - cFYI(1,("can not send cmd %d while umounting", + cFYI(1, ("can not send cmd %d while umounting", smb_command)); return -ENODEV; } } - if((tcon->ses) && (tcon->ses->status != CifsExiting) && - (tcon->ses->server)){ + if ((tcon->ses) && (tcon->ses->status != CifsExiting) && + (tcon->ses->server)) { struct nls_table *nls_codepage; - /* Give Demultiplex thread up to 10 seconds to + /* Give Demultiplex thread up to 10 seconds to reconnect, should be greater than cifs socket timeout which is 7 seconds */ - while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { + while (tcon->ses->server->tcpStatus == + CifsNeedReconnect) { wait_event_interruptible_timeout(tcon->ses->server->response_q, - (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); - if(tcon->ses->server->tcpStatus == CifsNeedReconnect) { + (tcon->ses->server->tcpStatus == + CifsGood), 10 * HZ); + if (tcon->ses->server->tcpStatus == + CifsNeedReconnect) { /* on "soft" mounts we wait once */ - if((tcon->retry == FALSE) || + if ((tcon->retry == FALSE) || (tcon->ses->status == CifsExiting)) { - cFYI(1,("gave up waiting on reconnect in smb_init")); + cFYI(1, ("gave up waiting on " + "reconnect in smb_init")); return -EHOSTDOWN; } /* else "hard" mount - keep retrying until process is killed or server comes back on-line */ } else /* TCP session is reestablished now */ break; - } - + nls_codepage = load_nls_default(); /* need to prevent multiple threads trying to simultaneously reconnect the same SMB session */ down(&tcon->ses->sesSem); - if(tcon->ses->status == CifsNeedReconnect) - rc = cifs_setup_session(0, tcon->ses, + if (tcon->ses->status == CifsNeedReconnect) + rc = cifs_setup_session(0, tcon->ses, nls_codepage); - if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { + if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { mark_open_files_invalid(tcon); - rc = CIFSTCon(0, tcon->ses, tcon->treeName, + rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nls_codepage); up(&tcon->ses->sesSem); /* tell server which Unix caps we support */ if (tcon->ses->capabilities & CAP_UNIX) reset_cifs_unix_caps(0 /* no xid */, - tcon, + tcon, NULL /* we do not know sb */, - NULL /* no vol info */); + NULL /* no vol info */); /* BB FIXME add code to check if wsize needs update due to negotiated smb buffer size shrinking */ - if(rc == 0) + if (rc == 0) atomic_inc(&tconInfoReconnectCount); cFYI(1, ("reconnect tcon rc = %d", rc)); - /* Removed call to reopen open files here - - it is safer (and faster) to reopen files + /* Removed call to reopen open files here. + It is safer (and faster) to reopen files one at a time as needed in read and write */ - /* Check if handle based operation so we + /* Check if handle based operation so we know whether we can continue or not without returning to caller to reset file handle */ - switch(smb_command) { + switch (smb_command) { case SMB_COM_READ_ANDX: case SMB_COM_WRITE_ANDX: case SMB_COM_CLOSE: @@ -200,7 +203,7 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, return -EIO; } } - if(rc) + if (rc) return rc; *request_buf = cifs_small_buf_get(); @@ -209,23 +212,24 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, return -ENOMEM; } - header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon,wct); + header_assemble((struct smb_hdr *) *request_buf, smb_command, + tcon, wct); - if(tcon != NULL) - cifs_stats_inc(&tcon->num_smbs_sent); + if (tcon != NULL) + cifs_stats_inc(&tcon->num_smbs_sent); return rc; } int -small_smb_init_no_tc(const int smb_command, const int wct, +small_smb_init_no_tc(const int smb_command, const int wct, struct cifsSesInfo *ses, void **request_buf) { int rc; - struct smb_hdr * buffer; + struct smb_hdr *buffer; rc = small_smb_init(smb_command, wct, NULL, request_buf); - if(rc) + if (rc) return rc; buffer = (struct smb_hdr *)*request_buf; @@ -237,7 +241,7 @@ small_smb_init_no_tc(const int smb_command, const int wct, /* uid, tid can stay at zero as set in header assemble */ - /* BB add support for turning on the signing when + /* BB add support for turning on the signing when this function is used after 1st of session setup requests */ return rc; @@ -254,52 +258,53 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for tcp and smb session status done differently for those three - in the calling routine */ - if(tcon) { - if(tcon->tidStatus == CifsExiting) { + if (tcon) { + if (tcon->tidStatus == CifsExiting) { /* only tree disconnect, open, and write, (and ulogoff which does not have tcon) are allowed as we start force umount */ - if((smb_command != SMB_COM_WRITE_ANDX) && + if ((smb_command != SMB_COM_WRITE_ANDX) && (smb_command != SMB_COM_OPEN_ANDX) && (smb_command != SMB_COM_TREE_DISCONNECT)) { - cFYI(1,("can not send cmd %d while umounting", + cFYI(1, ("can not send cmd %d while umounting", smb_command)); return -ENODEV; } } - if((tcon->ses) && (tcon->ses->status != CifsExiting) && - (tcon->ses->server)){ + if ((tcon->ses) && (tcon->ses->status != CifsExiting) && + (tcon->ses->server)) { struct nls_table *nls_codepage; /* Give Demultiplex thread up to 10 seconds to reconnect, should be greater than cifs socket timeout which is 7 seconds */ - while(tcon->ses->server->tcpStatus == CifsNeedReconnect) { + while (tcon->ses->server->tcpStatus == + CifsNeedReconnect) { wait_event_interruptible_timeout(tcon->ses->server->response_q, - (tcon->ses->server->tcpStatus == CifsGood), 10 * HZ); - if(tcon->ses->server->tcpStatus == + (tcon->ses->server->tcpStatus == + CifsGood), 10 * HZ); + if (tcon->ses->server->tcpStatus == CifsNeedReconnect) { /* on "soft" mounts we wait once */ - if((tcon->retry == FALSE) || + if ((tcon->retry == FALSE) || (tcon->ses->status == CifsExiting)) { - cFYI(1,("gave up waiting on reconnect in smb_init")); + cFYI(1, ("gave up waiting on " + "reconnect in smb_init")); return -EHOSTDOWN; } /* else "hard" mount - keep retrying until process is killed or server comes on-line */ } else /* TCP session is reestablished now */ break; - } - nls_codepage = load_nls_default(); /* need to prevent multiple threads trying to simultaneously reconnect the same SMB session */ down(&tcon->ses->sesSem); - if(tcon->ses->status == CifsNeedReconnect) - rc = cifs_setup_session(0, tcon->ses, + if (tcon->ses->status == CifsNeedReconnect) + rc = cifs_setup_session(0, tcon->ses, nls_codepage); - if(!rc && (tcon->tidStatus == CifsNeedReconnect)) { + if (!rc && (tcon->tidStatus == CifsNeedReconnect)) { mark_open_files_invalid(tcon); rc = CIFSTCon(0, tcon->ses, tcon->treeName, tcon, nls_codepage); @@ -307,24 +312,24 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* tell server which Unix caps we support */ if (tcon->ses->capabilities & CAP_UNIX) reset_cifs_unix_caps(0 /* no xid */, - tcon, + tcon, NULL /* do not know sb */, NULL /* no vol info */); /* BB FIXME add code to check if wsize needs update due to negotiated smb buffer size shrinking */ - if(rc == 0) + if (rc == 0) atomic_inc(&tconInfoReconnectCount); cFYI(1, ("reconnect tcon rc = %d", rc)); - /* Removed call to reopen open files here - - it is safer (and faster) to reopen files + /* Removed call to reopen open files here. + It is safer (and faster) to reopen files one at a time as needed in read and write */ - /* Check if handle based operation so we + /* Check if handle based operation so we know whether we can continue or not without returning to caller to reset file handle */ - switch(smb_command) { + switch (smb_command) { case SMB_COM_READ_ANDX: case SMB_COM_WRITE_ANDX: case SMB_COM_CLOSE: @@ -343,7 +348,7 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, return -EIO; } } - if(rc) + if (rc) return rc; *request_buf = cifs_buf_get(); @@ -355,48 +360,48 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, /* potential retries of smb operations it turns out we can determine */ /* from the mid flags when the request buffer can be resent without */ /* having to use a second distinct buffer for the response */ - if(response_buf) - *response_buf = *request_buf; + if (response_buf) + *response_buf = *request_buf; header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, wct /*wct */ ); - if(tcon != NULL) - cifs_stats_inc(&tcon->num_smbs_sent); + if (tcon != NULL) + cifs_stats_inc(&tcon->num_smbs_sent); return rc; } -static int validate_t2(struct smb_t2_rsp * pSMB) +static int validate_t2(struct smb_t2_rsp *pSMB) { int rc = -EINVAL; int total_size; - char * pBCC; + char *pBCC; /* check for plausible wct, bcc and t2 data and parm sizes */ /* check for parm and data offset going beyond end of smb */ - if(pSMB->hdr.WordCount >= 10) { - if((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && + if (pSMB->hdr.WordCount >= 10) { + if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { /* check that bcc is at least as big as parms + data */ /* check that bcc is less than negotiated smb buffer */ total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); - if(total_size < 512) { - total_size+=le16_to_cpu(pSMB->t2_rsp.DataCount); + if (total_size < 512) { + total_size += + le16_to_cpu(pSMB->t2_rsp.DataCount); /* BCC le converted in SendReceive */ - pBCC = (pSMB->hdr.WordCount * 2) + + pBCC = (pSMB->hdr.WordCount * 2) + sizeof(struct smb_hdr) + (char *)pSMB; - if((total_size <= (*(u16 *)pBCC)) && - (total_size < + if ((total_size <= (*(u16 *)pBCC)) && + (total_size < CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { return 0; } - } } } - cifs_dump_mem("Invalid transact2 SMB: ",(char *)pSMB, + cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, sizeof(struct smb_t2_rsp) + 16); return rc; } @@ -408,12 +413,12 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) int rc = 0; int bytes_returned; int i; - struct TCP_Server_Info * server; + struct TCP_Server_Info *server; u16 count; unsigned int secFlags; u16 dialect; - if(ses->server) + if (ses->server) server = ses->server; else { rc = -EIO; @@ -425,20 +430,20 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) return rc; /* if any of auth flags (ie not sign or seal) are overriden use them */ - if(ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) - secFlags = ses->overrideSecFlg; + if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) + secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ else /* if override flags set only sign/seal OR them with global auth */ secFlags = extended_security | ses->overrideSecFlg; - cFYI(1,("secFlags 0x%x",secFlags)); + cFYI(1, ("secFlags 0x%x", secFlags)); pSMB->hdr.Mid = GetNextMid(server); pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; - + count = 0; - for(i=0;i<CIFS_NUM_PROT;i++) { + for (i = 0; i < CIFS_NUM_PROT; i++) { strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); count += strlen(protocols[i].name) + 1; /* null at end of source and target buffers anyway */ @@ -448,26 +453,26 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc != 0) + if (rc != 0) goto neg_err_exit; dialect = le16_to_cpu(pSMBr->DialectIndex); - cFYI(1,("Dialect: %d", dialect)); + cFYI(1, ("Dialect: %d", dialect)); /* Check wct = 1 error case */ - if((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { + if ((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { /* core returns wct = 1, but we do not ask for core - otherwise - small wct just comes when dialect index is -1 indicating we + small wct just comes when dialect index is -1 indicating we could not negotiate a common dialect */ rc = -EOPNOTSUPP; goto neg_err_exit; -#ifdef CONFIG_CIFS_WEAK_PW_HASH - } else if((pSMBr->hdr.WordCount == 13) +#ifdef CONFIG_CIFS_WEAK_PW_HASH + } else if ((pSMBr->hdr.WordCount == 13) && ((dialect == LANMAN_PROT) || (dialect == LANMAN2_PROT))) { __s16 tmp; - struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; + struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; - if((secFlags & CIFSSEC_MAY_LANMAN) || + if ((secFlags & CIFSSEC_MAY_LANMAN) || (secFlags & CIFSSEC_MAY_PLNTXT)) server->secType = LANMAN; else { @@ -475,7 +480,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) " in /proc/fs/cifs/SecurityFlags")); rc = -EOPNOTSUPP; goto neg_err_exit; - } + } server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); server->maxReq = le16_to_cpu(rsp->MaxMpxCount); server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), @@ -483,7 +488,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); /* even though we do not use raw we might as well set this accurately, in case we ever find a need for it */ - if((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { + if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { server->maxRw = 0xFF00; server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; } else { @@ -504,29 +509,29 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) utc = CURRENT_TIME; ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), le16_to_cpu(rsp->SrvTime.Time)); - cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d", - (int)ts.tv_sec, (int)utc.tv_sec, + cFYI(1, ("SrvTime %d sec since 1970 (utc: %d) diff: %d", + (int)ts.tv_sec, (int)utc.tv_sec, (int)(utc.tv_sec - ts.tv_sec))); val = (int)(utc.tv_sec - ts.tv_sec); seconds = val < 0 ? -val : val; result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; remain = seconds % MIN_TZ_ADJ; - if(remain >= (MIN_TZ_ADJ / 2)) + if (remain >= (MIN_TZ_ADJ / 2)) result += MIN_TZ_ADJ; - if(val < 0) + if (val < 0) result = - result; server->timeAdj = result; } else { server->timeAdj = (int)tmp; server->timeAdj *= 60; /* also in seconds */ } - cFYI(1,("server->timeAdj: %d seconds", server->timeAdj)); + cFYI(1, ("server->timeAdj: %d seconds", server->timeAdj)); /* BB get server time for time conversions and add - code to use it and timezone since this is not UTC */ + code to use it and timezone since this is not UTC */ - if (rsp->EncryptionKeyLength == + if (rsp->EncryptionKeyLength == cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { memcpy(server->cryptKey, rsp->EncryptionKey, CIFS_CRYPTO_KEY_SIZE); @@ -535,39 +540,39 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) goto neg_err_exit; } - cFYI(1,("LANMAN negotiated")); + cFYI(1, ("LANMAN negotiated")); /* we will not end up setting signing flags - as no signing was in LANMAN and server did not return the flags on */ goto signing_check; #else /* weak security disabled */ - } else if(pSMBr->hdr.WordCount == 13) { - cERROR(1,("mount failed, cifs module not built " + } else if (pSMBr->hdr.WordCount == 13) { + cERROR(1, ("mount failed, cifs module not built " "with CIFS_WEAK_PW_HASH support")); rc = -EOPNOTSUPP; #endif /* WEAK_PW_HASH */ goto neg_err_exit; - } else if(pSMBr->hdr.WordCount != 17) { + } else if (pSMBr->hdr.WordCount != 17) { /* unknown wct */ rc = -EOPNOTSUPP; goto neg_err_exit; } /* else wct == 17 NTLM */ server->secMode = pSMBr->SecurityMode; - if((server->secMode & SECMODE_USER) == 0) - cFYI(1,("share mode security")); + if ((server->secMode & SECMODE_USER) == 0) + cFYI(1, ("share mode security")); - if((server->secMode & SECMODE_PW_ENCRYPT) == 0) + if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) #ifdef CONFIG_CIFS_WEAK_PW_HASH if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) #endif /* CIFS_WEAK_PW_HASH */ - cERROR(1,("Server requests plain text password" + cERROR(1, ("Server requests plain text password" " but client support disabled")); - if((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) + if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) server->secType = NTLMv2; - else if(secFlags & CIFSSEC_MAY_NTLM) + else if (secFlags & CIFSSEC_MAY_NTLM) server->secType = NTLM; - else if(secFlags & CIFSSEC_MAY_NTLMV2) + else if (secFlags & CIFSSEC_MAY_NTLMV2) server->secType = NTLMv2; /* else krb5 ... any others ... */ @@ -596,7 +601,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) /* BB might be helpful to save off the domain of server here */ - if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && + if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && (server->capabilities & CAP_EXTENDED_SECURITY)) { count = pSMBr->ByteCount; if (count < 16) @@ -620,7 +625,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) SecurityBlob, count - 16, &server->secType); - if(rc == 1) { + if (rc == 1) { /* BB Need to fill struct for sessetup here */ rc = -EOPNOTSUPP; } else { @@ -633,26 +638,37 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) #ifdef CONFIG_CIFS_WEAK_PW_HASH signing_check: #endif - if(sign_CIFS_PDUs == FALSE) { - if(server->secMode & SECMODE_SIGN_REQUIRED) - cERROR(1,("Server requires " - "/proc/fs/cifs/PacketSigningEnabled to be on")); - server->secMode &= + if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { + /* MUST_SIGN already includes the MAY_SIGN FLAG + so if this is zero it means that signing is disabled */ + cFYI(1, ("Signing disabled")); + if (server->secMode & SECMODE_SIGN_REQUIRED) + cERROR(1, ("Server requires " + "/proc/fs/cifs/PacketSigningEnabled " + "to be on")); + server->secMode &= ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); - } else if(sign_CIFS_PDUs == 1) { - if((server->secMode & SECMODE_SIGN_REQUIRED) == 0) - server->secMode &= - ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); - } else if(sign_CIFS_PDUs == 2) { - if((server->secMode & + } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { + /* signing required */ + cFYI(1, ("Must sign - secFlags 0x%x", secFlags)); + if ((server->secMode & (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { - cERROR(1,("signing required but server lacks support")); - } + cERROR(1, + ("signing required but server lacks support")); + rc = -EOPNOTSUPP; + } else + server->secMode |= SECMODE_SIGN_REQUIRED; + } else { + /* signing optional ie CIFSSEC_MAY_SIGN */ + if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) + server->secMode &= + ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); } -neg_err_exit: + +neg_err_exit: cifs_buf_release(pSMB); - cFYI(1,("negprot rc %d",rc)); + cFYI(1, ("negprot rc %d", rc)); return rc; } @@ -669,7 +685,7 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) * If last user of the connection and * connection alive - disconnect it * If this is the last connection on the server session disconnect it - * (and inside session disconnect we should check if tcp socket needs + * (and inside session disconnect we should check if tcp socket needs * to be freed and kernel thread woken up). */ if (tcon) @@ -683,18 +699,18 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) return -EBUSY; } - /* No need to return error on this operation if tid invalidated and + /* No need to return error on this operation if tid invalidated and closed on server already e.g. due to tcp session crashing */ - if(tcon->tidStatus == CifsNeedReconnect) { + if (tcon->tidStatus == CifsNeedReconnect) { up(&tcon->tconSem); - return 0; + return 0; } - if((tcon->ses == NULL) || (tcon->ses->server == NULL)) { + if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) { up(&tcon->tconSem); return -EIO; } - rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, + rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, (void **)&smb_buffer); if (rc) { up(&tcon->tconSem); @@ -711,7 +727,7 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) cifs_small_buf_release(smb_buffer); up(&tcon->tconSem); - /* No need to return error on this operation if tid invalidated and + /* No need to return error on this operation if tid invalidated and closed on server already e.g. due to tcp session crashing */ if (rc == -EAGAIN) rc = 0; @@ -745,11 +761,11 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) } smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */ - - if(ses->server) { + + if (ses->server) { pSMB->hdr.Mid = GetNextMid(ses->server); - if(ses->server->secMode & + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; } @@ -772,7 +788,7 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) cifs_small_buf_release(pSMB); /* if session dead then we do not need to do ulogoff, - since server closed smb session, no sense reporting + since server closed smb session, no sense reporting error */ if (rc == -EAGAIN) rc = 0; @@ -780,6 +796,82 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) } int +CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, + __u16 type, const struct nls_table *nls_codepage, int remap) +{ + TRANSACTION2_SPI_REQ *pSMB = NULL; + TRANSACTION2_SPI_RSP *pSMBr = NULL; + struct unlink_psx_rq *pRqD; + int name_len; + int rc = 0; + int bytes_returned = 0; + __u16 params, param_offset, offset, byte_count; + + cFYI(1, ("In POSIX delete")); +PsxDelete: + rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, + (void **) &pSMBr); + if (rc) + return rc; + + if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { + name_len = + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + PATH_MAX, nls_codepage, remap); + name_len++; /* trailing null */ + name_len *= 2; + } else { /* BB add path length overrun check */ + name_len = strnlen(fileName, PATH_MAX); + name_len++; /* trailing null */ + strncpy(pSMB->FileName, fileName, name_len); + } + + params = 6 + name_len; + pSMB->MaxParameterCount = cpu_to_le16(2); + pSMB->MaxDataCount = 0; /* BB double check this with jra */ + pSMB->MaxSetupCount = 0; + pSMB->Reserved = 0; + pSMB->Flags = 0; + pSMB->Timeout = 0; + pSMB->Reserved2 = 0; + param_offset = offsetof(struct smb_com_transaction2_spi_req, + InformationLevel) - 4; + offset = param_offset + params; + + /* Setup pointer to Request Data (inode type) */ + pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); + pRqD->type = cpu_to_le16(type); + pSMB->ParameterOffset = cpu_to_le16(param_offset); + pSMB->DataOffset = cpu_to_le16(offset); + pSMB->SetupCount = 1; + pSMB->Reserved3 = 0; + pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); + byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); + + pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); + pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); + pSMB->ParameterCount = cpu_to_le16(params); + pSMB->TotalParameterCount = pSMB->ParameterCount; + pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); + pSMB->Reserved4 = 0; + pSMB->hdr.smb_buf_length += byte_count; + pSMB->ByteCount = cpu_to_le16(byte_count); + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned, 0); + if (rc) { + cFYI(1, ("Posix delete returned %d", rc)); + } + cifs_buf_release(pSMB); + + cifs_stats_inc(&tcon->num_deletes); + + if (rc == -EAGAIN) + goto PsxDelete; + + return rc; +} + +int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, const struct nls_table *nls_codepage, int remap) { @@ -797,7 +889,7 @@ DelFileRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -816,7 +908,7 @@ DelFileRetry: cifs_stats_inc(&tcon->num_deletes); if (rc) { cFYI(1, ("Error in RMFile = %d", rc)); - } + } cifs_buf_release(pSMB); if (rc == -EAGAIN) @@ -826,7 +918,7 @@ DelFileRetry: } int -CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, +CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, const struct nls_table *nls_codepage, int remap) { DELETE_DIRECTORY_REQ *pSMB = NULL; @@ -887,7 +979,7 @@ MkDirRetry: return rc; if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, + name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -916,7 +1008,7 @@ MkDirRetry: int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, __u64 mode, __u16 * netfid, FILE_UNIX_BASIC_INFO *pRetData, - __u32 *pOplock, const char *name, + __u32 *pOplock, const char *name, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_SPI_REQ *pSMB = NULL; @@ -924,7 +1016,6 @@ CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, int name_len; int rc = 0; int bytes_returned = 0; - char *data_offset; __u16 params, param_offset, offset, byte_count, count; OPEN_PSX_REQ * pdata; OPEN_PSX_RSP * psx_rsp; @@ -958,13 +1049,12 @@ PsxCreat: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); pdata->Level = SMB_QUERY_FILE_UNIX_BASIC; pdata->Permissions = cpu_to_le64(mode); - pdata->PosixOpenFlags = cpu_to_le32(posix_flags); + pdata->PosixOpenFlags = cpu_to_le32(posix_flags); pdata->OpenFlags = cpu_to_le32(*pOplock); pSMB->ParameterOffset = cpu_to_le16(param_offset); pSMB->DataOffset = cpu_to_le16(offset); @@ -979,7 +1069,7 @@ PsxCreat: pSMB->TotalParameterCount = pSMB->ParameterCount; pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); pSMB->Reserved4 = 0; - pSMB->hdr.smb_buf_length += byte_count; + pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); @@ -988,7 +1078,7 @@ PsxCreat: goto psx_create_err; } - cFYI(1,("copying inode info")); + cFYI(1, ("copying inode info")); rc = validate_t2((struct smb_t2_rsp *)pSMBr); if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { @@ -997,34 +1087,33 @@ PsxCreat: } /* copy return information to pRetData */ - psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol + psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.DataOffset)); - + *pOplock = le16_to_cpu(psx_rsp->OplockFlags); - if(netfid) + if (netfid) *netfid = psx_rsp->Fid; /* cifs fid stays in le */ /* Let caller know file was created so we can set the mode. */ /* Do we care about the CreateAction in any other cases? */ - if(cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) + if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) *pOplock |= CIFS_CREATE_ACTION; /* check to make sure response data is there */ - if(psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC) { + if (psx_rsp->ReturnedLevel != SMB_QUERY_FILE_UNIX_BASIC) { pRetData->Type = -1; /* unknown */ #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("unknown type")); + cFYI(1, ("unknown type")); #endif } else { - if(pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) + if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) + sizeof(FILE_UNIX_BASIC_INFO)) { - cERROR(1,("Open response data too small")); + cERROR(1, ("Open response data too small")); pRetData->Type = -1; goto psx_create_err; } - memcpy((char *) pRetData, + memcpy((char *) pRetData, (char *)psx_rsp + sizeof(OPEN_PSX_RSP), sizeof (FILE_UNIX_BASIC_INFO)); } - psx_create_err: cifs_buf_release(pSMB); @@ -1034,7 +1123,7 @@ psx_create_err: if (rc == -EAGAIN) goto PsxCreat; - return rc; + return rc; } static __u16 convert_disposition(int disposition) @@ -1061,7 +1150,7 @@ static __u16 convert_disposition(int disposition) ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; break; default: - cFYI(1,("unknown disposition %d",disposition)); + cFYI(1, ("unknown disposition %d", disposition)); ofun = SMBOPEN_OAPPEND; /* regular open */ } return ofun; @@ -1071,7 +1160,7 @@ int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + int *pOplock, FILE_ALL_INFO * pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1113,16 +1202,16 @@ OldOpenRetry: 1 = write 2 = rw 3 = execute - */ + */ pSMB->Mode = cpu_to_le16(2); pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ /* set file as system file if special file such as fifo and server expecting SFU style and no Unix extensions */ - if(create_options & CREATE_OPTION_SPECIAL) - pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); - else + if (create_options & CREATE_OPTION_SPECIAL) + pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); + else pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); /* BB FIXME */ /* if ((omode & S_IWUGO) == 0) @@ -1132,7 +1221,8 @@ OldOpenRetry: being created */ /* BB FIXME BB */ -/* pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); */ +/* pSMB->CreateOptions = cpu_to_le32(create_options & + CREATE_OPTIONS_MASK); */ /* BB FIXME END BB */ pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); @@ -1143,7 +1233,7 @@ OldOpenRetry: pSMB->ByteCount = cpu_to_le16(count); /* long_op set to 1 to allow for oplock break timeouts */ rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 1); + (struct smb_hdr *) pSMBr, &bytes_returned, 1); cifs_stats_inc(&tcon->num_opens); if (rc) { cFYI(1, ("Error in Open = %d", rc)); @@ -1156,17 +1246,17 @@ OldOpenRetry: /* Let caller know file was created so we can set the mode. */ /* Do we care about the CreateAction in any other cases? */ /* BB FIXME BB */ -/* if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) +/* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) *pOplock |= CIFS_CREATE_ACTION; */ /* BB FIXME END */ - if(pfile_info) { + if (pfile_info) { pfile_info->CreationTime = 0; /* BB convert CreateTime*/ pfile_info->LastAccessTime = 0; /* BB fixme */ pfile_info->LastWriteTime = 0; /* BB fixme */ pfile_info->ChangeTime = 0; /* BB fixme */ pfile_info->Attributes = - cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); + cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); /* the file_info buf is endian converted by caller */ pfile_info->AllocationSize = cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); @@ -1185,7 +1275,7 @@ int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, const char *fileName, const int openDisposition, const int access_flags, const int create_options, __u16 * netfid, - int *pOplock, FILE_ALL_INFO * pfile_info, + int *pOplock, FILE_ALL_INFO * pfile_info, const struct nls_table *nls_codepage, int remap) { int rc = -EACCES; @@ -1228,7 +1318,7 @@ openRetry: /* set file as system file if special file such as fifo and server expecting SFU style and no Unix extensions */ - if(create_options & CREATE_OPTION_SPECIAL) + if (create_options & CREATE_OPTION_SPECIAL) pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); else pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); @@ -1266,10 +1356,10 @@ openRetry: *netfid = pSMBr->Fid; /* cifs fid stays in le */ /* Let caller know file was created so we can set the mode. */ /* Do we care about the CreateAction in any other cases? */ - if(cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) - *pOplock |= CIFS_CREATE_ACTION; - if(pfile_info) { - memcpy((char *)pfile_info,(char *)&pSMBr->CreationTime, + if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) + *pOplock |= CIFS_CREATE_ACTION; + if (pfile_info) { + memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, 36 /* CreationTime to Attributes */); /* the file_info buf is endian converted by caller */ pfile_info->AllocationSize = pSMBr->AllocationSize; @@ -1285,10 +1375,9 @@ openRetry: } int -CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, - const int netfid, const unsigned int count, - const __u64 lseek, unsigned int *nbytes, char **buf, - int * pbuf_type) +CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, + const unsigned int count, const __u64 lseek, unsigned int *nbytes, + char **buf, int *pbuf_type) { int rc = -EACCES; READ_REQ *pSMB = NULL; @@ -1298,8 +1387,8 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, int resp_buf_type = 0; struct kvec iov[1]; - cFYI(1,("Reading %d bytes on fid %d",count,netfid)); - if(tcon->ses->capabilities & CAP_LARGE_FILES) + cFYI(1, ("Reading %d bytes on fid %d", count, netfid)); + if (tcon->ses->capabilities & CAP_LARGE_FILES) wct = 12; else wct = 10; /* old style read */ @@ -1316,28 +1405,28 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); - if(wct == 12) + if (wct == 12) pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); - else if((lseek >> 32) > 0) /* can not handle this big offset for old */ + else if ((lseek >> 32) > 0) /* can not handle this big offset for old */ return -EIO; pSMB->Remaining = 0; pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); pSMB->MaxCountHigh = cpu_to_le32(count >> 16); - if(wct == 12) + if (wct == 12) pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ else { /* old style read */ - struct smb_com_readx_req * pSMBW = + struct smb_com_readx_req *pSMBW = (struct smb_com_readx_req *)pSMB; pSMBW->ByteCount = 0; } iov[0].iov_base = (char *)pSMB; iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; - rc = SendReceive2(xid, tcon->ses, iov, + rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, - &resp_buf_type, 0); + &resp_buf_type, 0); cifs_stats_inc(&tcon->num_reads); pSMBr = (READ_RSP *)iov[0].iov_base; if (rc) { @@ -1351,33 +1440,34 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, /*check that DataLength would not go beyond end of SMB */ if ((data_length > CIFSMaxBufSize) || (data_length > count)) { - cFYI(1,("bad length %d for count %d",data_length,count)); + cFYI(1, ("bad length %d for count %d", + data_length, count)); rc = -EIO; *nbytes = 0; } else { pReadData = (char *) (&pSMBr->hdr.Protocol) + le16_to_cpu(pSMBr->DataOffset); -/* if(rc = copy_to_user(buf, pReadData, data_length)) { - cERROR(1,("Faulting on read rc = %d",rc)); - rc = -EFAULT; +/* if (rc = copy_to_user(buf, pReadData, data_length)) { + cERROR(1,("Faulting on read rc = %d",rc)); + rc = -EFAULT; }*/ /* can not use copy_to_user when using page cache*/ - if(*buf) - memcpy(*buf,pReadData,data_length); + if (*buf) + memcpy(*buf, pReadData, data_length); } } /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ - if(*buf) { - if(resp_buf_type == CIFS_SMALL_BUFFER) + if (*buf) { + if (resp_buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(iov[0].iov_base); - else if(resp_buf_type == CIFS_LARGE_BUFFER) + else if (resp_buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); - } else if(resp_buf_type != CIFS_NO_BUFFER) { - /* return buffer to caller to free */ - *buf = iov[0].iov_base; - if(resp_buf_type == CIFS_SMALL_BUFFER) + } else if (resp_buf_type != CIFS_NO_BUFFER) { + /* return buffer to caller to free */ + *buf = iov[0].iov_base; + if (resp_buf_type == CIFS_SMALL_BUFFER) *pbuf_type = CIFS_SMALL_BUFFER; - else if(resp_buf_type == CIFS_LARGE_BUFFER) + else if (resp_buf_type == CIFS_LARGE_BUFFER) *pbuf_type = CIFS_LARGE_BUFFER; } /* else no valid buffer on return - leave as null */ @@ -1391,7 +1481,7 @@ int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, const int netfid, const unsigned int count, const __u64 offset, unsigned int *nbytes, const char *buf, - const char __user * ubuf, const int long_op) + const char __user *ubuf, const int long_op) { int rc = -EACCES; WRITE_REQ *pSMB = NULL; @@ -1401,10 +1491,10 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, __u16 byte_count; /* cFYI(1,("write at %lld %d bytes",offset,count));*/ - if(tcon->ses == NULL) + if (tcon->ses == NULL) return -ECONNABORTED; - if(tcon->ses->capabilities & CAP_LARGE_FILES) + if (tcon->ses->capabilities & CAP_LARGE_FILES) wct = 14; else wct = 12; @@ -1420,20 +1510,20 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); - if(wct == 14) + if (wct == 14) pSMB->OffsetHigh = cpu_to_le32(offset >> 32); - else if((offset >> 32) > 0) /* can not handle this big offset for old */ + else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ return -EIO; - + pSMB->Reserved = 0xFFFFFFFF; pSMB->WriteMode = 0; pSMB->Remaining = 0; - /* Can increase buffer size if buffer is big enough in some cases - ie we + /* Can increase buffer size if buffer is big enough in some cases ie we can send more if LARGE_WRITE_X capability returned by the server and if our buffer is big enough or if we convert to iovecs on socket writes and eliminate the copy to the CIFS buffer */ - if(tcon->ses->capabilities & CAP_LARGE_WRITE_X) { + if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); } else { bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) @@ -1443,11 +1533,11 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, if (bytes_sent > count) bytes_sent = count; pSMB->DataOffset = - cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); - if(buf) - memcpy(pSMB->Data,buf,bytes_sent); - else if(ubuf) { - if(copy_from_user(pSMB->Data,ubuf,bytes_sent)) { + cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); + if (buf) + memcpy(pSMB->Data, buf, bytes_sent); + else if (ubuf) { + if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { cifs_buf_release(pSMB); return -EFAULT; } @@ -1456,7 +1546,7 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, cifs_buf_release(pSMB); return -EINVAL; } /* else setting file size with write of zero bytes */ - if(wct == 14) + if (wct == 14) byte_count = bytes_sent + 1; /* pad */ else /* wct == 12 */ { byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ @@ -1465,10 +1555,11 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); pSMB->hdr.smb_buf_length += byte_count; - if(wct == 14) + if (wct == 14) pSMB->ByteCount = cpu_to_le16(byte_count); - else { /* old style write has byte count 4 bytes earlier so 4 bytes pad */ - struct smb_com_writex_req * pSMBW = + else { /* old style write has byte count 4 bytes earlier + so 4 bytes pad */ + struct smb_com_writex_req *pSMBW = (struct smb_com_writex_req *)pSMB; pSMBW->ByteCount = cpu_to_le16(byte_count); } @@ -1487,7 +1578,7 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, cifs_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; @@ -1505,9 +1596,9 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, int smb_hdr_len; int resp_buf_type = 0; - cFYI(1,("write2 at %lld %d bytes", (long long)offset, count)); + cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count)); - if(tcon->ses->capabilities & CAP_LARGE_FILES) + if (tcon->ses->capabilities & CAP_LARGE_FILES) wct = 14; else wct = 12; @@ -1521,37 +1612,37 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); - if(wct == 14) + if (wct == 14) pSMB->OffsetHigh = cpu_to_le32(offset >> 32); - else if((offset >> 32) > 0) /* can not handle this big offset for old */ + else if ((offset >> 32) > 0) /* can not handle big offset for old srv */ return -EIO; pSMB->Reserved = 0xFFFFFFFF; pSMB->WriteMode = 0; pSMB->Remaining = 0; pSMB->DataOffset = - cpu_to_le16(offsetof(struct smb_com_write_req,Data) - 4); + cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); pSMB->DataLengthHigh = cpu_to_le16(count >> 16); smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ - if(wct == 14) + if (wct == 14) pSMB->hdr.smb_buf_length += count+1; else /* wct == 12 */ - pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ - if(wct == 14) + pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ + if (wct == 14) pSMB->ByteCount = cpu_to_le16(count + 1); else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { - struct smb_com_writex_req * pSMBW = + struct smb_com_writex_req *pSMBW = (struct smb_com_writex_req *)pSMB; pSMBW->ByteCount = cpu_to_le16(count + 5); } iov[0].iov_base = pSMB; - if(wct == 14) + if (wct == 14) iov[0].iov_len = smb_hdr_len + 4; else /* wct == 12 pad bigger by four bytes */ iov[0].iov_len = smb_hdr_len + 8; - + rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, long_op); @@ -1559,7 +1650,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, if (rc) { cFYI(1, ("Send error Write2 = %d", rc)); *nbytes = 0; - } else if(resp_buf_type == 0) { + } else if (resp_buf_type == 0) { /* presumably this can not happen, but best to be safe */ rc = -EIO; *nbytes = 0; @@ -1568,15 +1659,15 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, *nbytes = le16_to_cpu(pSMBr->CountHigh); *nbytes = (*nbytes) << 16; *nbytes += le16_to_cpu(pSMBr->Count); - } + } /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ - if(resp_buf_type == CIFS_SMALL_BUFFER) + if (resp_buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(iov[0].iov_base); - else if(resp_buf_type == CIFS_LARGE_BUFFER) + else if (resp_buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; @@ -1596,7 +1687,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, int timeout = 0; __u16 count; - cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock)); + cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d", waitFlag, numLock)); rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); if (rc) @@ -1604,7 +1695,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */ - if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) { + if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { timeout = -1; /* no response expected */ pSMB->Timeout = 0; } else if (waitFlag == TRUE) { @@ -1620,7 +1711,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = smb_file_id; /* netfid stays le */ - if((numLock != 0) || (numUnlock != 0)) { + if ((numLock != 0) || (numUnlock != 0)) { pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); /* BB where to store pid high? */ pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); @@ -1648,7 +1739,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, } cifs_small_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; } @@ -1656,12 +1747,11 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, const __u16 smb_file_id, const int get_flag, const __u64 len, - struct file_lock *pLockData, const __u16 lock_type, + struct file_lock *pLockData, const __u16 lock_type, const int waitFlag) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; - char *data_offset; struct cifs_posix_lock *parm_data; int rc = 0; int timeout = 0; @@ -1670,7 +1760,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("Posix Lock")); - if(pLockData == NULL) + if (pLockData == NULL) return EINVAL; rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); @@ -1680,7 +1770,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; - params = 6; + params = 6; pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; pSMB->Flags = 0; @@ -1688,14 +1778,12 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; - count = sizeof(struct cifs_posix_lock); pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */ pSMB->SetupCount = 1; pSMB->Reserved3 = 0; - if(get_flag) + if (get_flag) pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); else pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); @@ -1705,11 +1793,11 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, pSMB->TotalDataCount = pSMB->DataCount; pSMB->TotalParameterCount = pSMB->ParameterCount; pSMB->ParameterOffset = cpu_to_le16(param_offset); - parm_data = (struct cifs_posix_lock *) + parm_data = (struct cifs_posix_lock *) (((char *) &pSMB->hdr.Protocol) + offset); parm_data->lock_type = cpu_to_le16(lock_type); - if(waitFlag) { + if (waitFlag) { timeout = 3; /* blocking operation, no timeout */ parm_data->lock_flags = cpu_to_le16(1); pSMB->Timeout = cpu_to_le32(-1); @@ -1746,22 +1834,22 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, rc = -EIO; /* bad smb */ goto plk_err_exit; } - if(pLockData == NULL) { + if (pLockData == NULL) { rc = -EINVAL; goto plk_err_exit; } data_offset = le16_to_cpu(pSMBr->t2.DataOffset); data_count = le16_to_cpu(pSMBr->t2.DataCount); - if(data_count < sizeof(struct cifs_posix_lock)) { + if (data_count < sizeof(struct cifs_posix_lock)) { rc = -EIO; goto plk_err_exit; } parm_data = (struct cifs_posix_lock *) ((char *)&pSMBr->hdr.Protocol + data_offset); - if(parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) + if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) pLockData->fl_type = F_UNLCK; } - + plk_err_exit: if (pSMB) cifs_small_buf_release(pSMB); @@ -1784,7 +1872,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) /* do not retry on dead session on close */ rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); - if(rc == -EAGAIN) + if (rc == -EAGAIN) return 0; if (rc) return rc; @@ -1798,7 +1886,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_closes); if (rc) { - if(rc!=-EINTR) { + if (rc != -EINTR) { /* EINTR is expected when user ctl-c to kill app */ cERROR(1, ("Send error in Close = %d", rc)); } @@ -1807,7 +1895,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) cifs_small_buf_release(pSMB); /* Since session is dead, file will be closed on server already */ - if(rc == -EAGAIN) + if (rc == -EAGAIN) rc = 0; return rc; @@ -1839,7 +1927,7 @@ renameRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, + cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -1851,7 +1939,7 @@ renameRetry: toName, PATH_MAX, nls_codepage, remap); name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; name_len2 *= 2; /* convert to bytes */ - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->OldFileName, fromName, name_len); @@ -1872,7 +1960,7 @@ renameRetry: cifs_stats_inc(&tcon->num_renames); if (rc) { cFYI(1, ("Send error in rename = %d", rc)); - } + } cifs_buf_release(pSMB); @@ -1882,13 +1970,13 @@ renameRetry: return rc; } -int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, - int netfid, char * target_name, - const struct nls_table * nls_codepage, int remap) +int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, + int netfid, char *target_name, + const struct nls_table *nls_codepage, int remap) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; - struct set_file_rename * rename_info; + struct set_file_rename *rename_info; char *data_offset; char dummy_string[30]; int rc = 0; @@ -1927,13 +2015,14 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, rename_info->overwrite = cpu_to_le32(1); rename_info->root_fid = 0; /* unicode only call */ - if(target_name == NULL) { - sprintf(dummy_string,"cifs%x",pSMB->hdr.Mid); - len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, + if (target_name == NULL) { + sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); + len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, dummy_string, 24, nls_codepage, remap); } else { len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, - target_name, PATH_MAX, nls_codepage, remap); + target_name, PATH_MAX, nls_codepage, + remap); } rename_info->target_name_len = cpu_to_le32(2 * len_of_str); count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2; @@ -1947,10 +2036,10 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); + (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&pTcon->num_t2renames); if (rc) { - cFYI(1,("Send error in Rename (by file handle) = %d", rc)); + cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); } cifs_buf_release(pSMB); @@ -1962,9 +2051,9 @@ int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, } int -CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char * fromName, - const __u16 target_tid, const char *toName, const int flags, - const struct nls_table *nls_codepage, int remap) +CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, + const __u16 target_tid, const char *toName, const int flags, + const struct nls_table *nls_codepage, int remap) { int rc = 0; COPY_REQ *pSMB = NULL; @@ -1986,7 +2075,7 @@ copyRetry: pSMB->Flags = cpu_to_le16(flags & COPY_TREE); if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, + name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ @@ -1994,11 +2083,12 @@ copyRetry: pSMB->OldFileName[name_len] = 0x04; /* pad */ /* protocol requires ASCII signature byte on Unicode string */ pSMB->OldFileName[name_len + 1] = 0x00; - name_len2 = cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], + name_len2 = + cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], toName, PATH_MAX, nls_codepage, remap); name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; name_len2 *= 2; /* convert to bytes */ - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->OldFileName, fromName, name_len); @@ -2058,7 +2148,7 @@ createSymLinkRetry: name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fromName, name_len); @@ -2070,7 +2160,7 @@ createSymLinkRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (char *) (&pSMB->hdr.Protocol) + offset; @@ -2081,7 +2171,7 @@ createSymLinkRetry: , nls_codepage); name_len_target++; /* trailing null */ name_len_target *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len_target = strnlen(toName, PATH_MAX); name_len_target++; /* trailing null */ strncpy(data_offset, toName, name_len_target); @@ -2108,9 +2198,7 @@ createSymLinkRetry: (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_symlinks); if (rc) { - cFYI(1, - ("Send error in SetPathInfo (create symlink) = %d", - rc)); + cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); } if (pSMB) @@ -2149,7 +2237,7 @@ createHardLinkRetry: name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(toName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, toName, name_len); @@ -2161,7 +2249,7 @@ createHardLinkRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (char *) (&pSMB->hdr.Protocol) + offset; @@ -2171,7 +2259,7 @@ createHardLinkRetry: nls_codepage, remap); name_len_target++; /* trailing null */ name_len_target *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len_target = strnlen(fromName, PATH_MAX); name_len_target++; /* trailing null */ strncpy(data_offset, fromName, name_len_target); @@ -2243,13 +2331,13 @@ winCreateHardLinkRetry: name_len++; /* trailing null */ name_len *= 2; pSMB->OldFileName[name_len] = 0; /* pad */ - pSMB->OldFileName[name_len + 1] = 0x04; + pSMB->OldFileName[name_len + 1] = 0x04; name_len2 = - cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], + cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], toName, PATH_MAX, nls_codepage, remap); name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; name_len2 *= 2; /* convert to bytes */ - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fromName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->OldFileName, fromName, name_len); @@ -2302,12 +2390,11 @@ querySymLinkRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX - /* find define for this maxpathcomponent */ - , nls_codepage); + cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, + PATH_MAX, nls_codepage); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -2324,7 +2411,7 @@ querySymLinkRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -2355,16 +2442,16 @@ querySymLinkRetry: if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = UniStrnlen((wchar_t *) ((char *) - &pSMBr->hdr.Protocol +data_offset), - min_t(const int, buflen,count) / 2); + &pSMBr->hdr.Protocol + data_offset), + min_t(const int, buflen, count) / 2); /* BB FIXME investigate remapping reserved chars here */ cifs_strfromUCS_le(symlinkinfo, - (__le16 *) ((char *)&pSMBr->hdr.Protocol + - data_offset), + (__le16 *) ((char *)&pSMBr->hdr.Protocol + + data_offset), name_len, nls_codepage); } else { strncpy(symlinkinfo, - (char *) &pSMBr->hdr.Protocol + + (char *) &pSMBr->hdr.Protocol + data_offset, min_t(const int, buflen, count)); } @@ -2385,14 +2472,14 @@ querySymLinkRetry: Setup words themselves and ByteCount MaxSetupCount (size of returned setup area) and MaxParameterCount (returned parms size) must be set by caller */ -static int +static int smb_init_ntransact(const __u16 sub_command, const int setup_count, const int parm_len, struct cifsTconInfo *tcon, - void ** ret_buf) + void **ret_buf) { int rc; __u32 temp_offset; - struct smb_com_ntransact_req * pSMB; + struct smb_com_ntransact_req *pSMB; rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, (void **)&pSMB); @@ -2416,47 +2503,47 @@ smb_init_ntransact(const __u16 sub_command, const int setup_count, } static int -validate_ntransact(char * buf, char ** ppparm, char ** ppdata, - int * pdatalen, int * pparmlen) +validate_ntransact(char *buf, char **ppparm, char **ppdata, + int *pdatalen, int *pparmlen) { - char * end_of_smb; + char *end_of_smb; __u32 data_count, data_offset, parm_count, parm_offset; - struct smb_com_ntransact_rsp * pSMBr; + struct smb_com_ntransact_rsp *pSMBr; - if(buf == NULL) + if (buf == NULL) return -EINVAL; pSMBr = (struct smb_com_ntransact_rsp *)buf; /* ByteCount was converted from little endian in SendReceive */ - end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + + end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + (char *)&pSMBr->ByteCount; - data_offset = le32_to_cpu(pSMBr->DataOffset); data_count = le32_to_cpu(pSMBr->DataCount); - parm_offset = le32_to_cpu(pSMBr->ParameterOffset); + parm_offset = le32_to_cpu(pSMBr->ParameterOffset); parm_count = le32_to_cpu(pSMBr->ParameterCount); *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; /* should we also check that parm and data areas do not overlap? */ - if(*ppparm > end_of_smb) { - cFYI(1,("parms start after end of smb")); + if (*ppparm > end_of_smb) { + cFYI(1, ("parms start after end of smb")); return -EINVAL; - } else if(parm_count + *ppparm > end_of_smb) { - cFYI(1,("parm end after end of smb")); + } else if (parm_count + *ppparm > end_of_smb) { + cFYI(1, ("parm end after end of smb")); return -EINVAL; - } else if(*ppdata > end_of_smb) { - cFYI(1,("data starts after end of smb")); + } else if (*ppdata > end_of_smb) { + cFYI(1, ("data starts after end of smb")); return -EINVAL; - } else if(data_count + *ppdata > end_of_smb) { + } else if (data_count + *ppdata > end_of_smb) { cFYI(1,("data %p + count %d (%p) ends after end of smb %p start %p", - *ppdata, data_count, (data_count + *ppdata), end_of_smb, pSMBr)); /* BB FIXME */ + *ppdata, data_count, (data_count + *ppdata), + end_of_smb, pSMBr)); return -EINVAL; - } else if(parm_count + data_count > pSMBr->ByteCount) { - cFYI(1,("parm count and data count larger than SMB")); + } else if (parm_count + data_count > pSMBr->ByteCount) { + cFYI(1, ("parm count and data count larger than SMB")); return -EINVAL; } return 0; @@ -2465,14 +2552,14 @@ validate_ntransact(char * buf, char ** ppparm, char ** ppdata, int CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - char *symlinkinfo, const int buflen,__u16 fid, + char *symlinkinfo, const int buflen, __u16 fid, const struct nls_table *nls_codepage) { int rc = 0; int bytes_returned; int name_len; - struct smb_com_transaction_ioctl_req * pSMB; - struct smb_com_transaction_ioctl_rsp * pSMBr; + struct smb_com_transaction_ioctl_req *pSMB; + struct smb_com_transaction_ioctl_rsp *pSMBr; cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, @@ -2511,47 +2598,53 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, /* BB also check enough total bytes returned */ rc = -EIO; /* bad smb */ else { - if(data_count && (data_count < 2048)) { - char * end_of_smb = 2 /* sizeof byte count */ + + if (data_count && (data_count < 2048)) { + char *end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + (char *)&pSMBr->ByteCount; - struct reparse_data * reparse_buf = (struct reparse_data *) - ((char *)&pSMBr->hdr.Protocol + data_offset); - if((char*)reparse_buf >= end_of_smb) { + struct reparse_data *reparse_buf = + (struct reparse_data *) + ((char *)&pSMBr->hdr.Protocol + + data_offset); + if ((char *)reparse_buf >= end_of_smb) { rc = -EIO; goto qreparse_out; } - if((reparse_buf->LinkNamesBuf + + if ((reparse_buf->LinkNamesBuf + reparse_buf->TargetNameOffset + reparse_buf->TargetNameLen) > end_of_smb) { - cFYI(1,("reparse buf extended beyond SMB")); + cFYI(1,("reparse buf goes beyond SMB")); rc = -EIO; goto qreparse_out; } - + if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = UniStrnlen((wchar_t *) - (reparse_buf->LinkNamesBuf + - reparse_buf->TargetNameOffset), - min(buflen/2, reparse_buf->TargetNameLen / 2)); + (reparse_buf->LinkNamesBuf + + reparse_buf->TargetNameOffset), + min(buflen/2, + reparse_buf->TargetNameLen / 2)); cifs_strfromUCS_le(symlinkinfo, - (__le16 *) (reparse_buf->LinkNamesBuf + + (__le16 *) (reparse_buf->LinkNamesBuf + reparse_buf->TargetNameOffset), name_len, nls_codepage); } else { /* ASCII names */ - strncpy(symlinkinfo,reparse_buf->LinkNamesBuf + - reparse_buf->TargetNameOffset, - min_t(const int, buflen, reparse_buf->TargetNameLen)); + strncpy(symlinkinfo, + reparse_buf->LinkNamesBuf + + reparse_buf->TargetNameOffset, + min_t(const int, buflen, + reparse_buf->TargetNameLen)); } } else { rc = -EIO; - cFYI(1,("Invalid return data count on get reparse info ioctl")); + cFYI(1, ("Invalid return data count on " + "get reparse info ioctl")); } symlinkinfo[buflen] = 0; /* just in case so the caller does not go off the end of the buffer */ - cFYI(1,("readlink result - %s",symlinkinfo)); + cFYI(1, ("readlink result - %s", symlinkinfo)); } } qreparse_out: @@ -2566,7 +2659,8 @@ qreparse_out: #ifdef CONFIG_CIFS_POSIX /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ -static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace * cifs_ace) +static void cifs_convert_ace(posix_acl_xattr_entry *ace, + struct cifs_posix_ace *cifs_ace) { /* u8 cifs fields do not need le conversion */ ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); @@ -2578,30 +2672,31 @@ static void cifs_convert_ace(posix_acl_xattr_entry * ace, struct cifs_posix_ace } /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ -static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, - const int acl_type,const int size_of_data_area) +static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, + const int acl_type, const int size_of_data_area) { int size = 0; int i; __u16 count; - struct cifs_posix_ace * pACE; - struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)src; - posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)trgt; + struct cifs_posix_ace *pACE; + struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; + posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) return -EOPNOTSUPP; - if(acl_type & ACL_TYPE_ACCESS) { + if (acl_type & ACL_TYPE_ACCESS) { count = le16_to_cpu(cifs_acl->access_entry_count); pACE = &cifs_acl->ace_array[0]; size = sizeof(struct cifs_posix_acl); size += sizeof(struct cifs_posix_ace) * count; /* check if we would go beyond end of SMB */ - if(size_of_data_area < size) { - cFYI(1,("bad CIFS POSIX ACL size %d vs. %d",size_of_data_area,size)); + if (size_of_data_area < size) { + cFYI(1, ("bad CIFS POSIX ACL size %d vs. %d", + size_of_data_area, size)); return -EINVAL; } - } else if(acl_type & ACL_TYPE_DEFAULT) { + } else if (acl_type & ACL_TYPE_DEFAULT) { count = le16_to_cpu(cifs_acl->access_entry_count); size = sizeof(struct cifs_posix_acl); size += sizeof(struct cifs_posix_ace) * count; @@ -2610,7 +2705,7 @@ static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, count = le16_to_cpu(cifs_acl->default_entry_count); size += sizeof(struct cifs_posix_ace) * count; /* check if we would go beyond end of SMB */ - if(size_of_data_area < size) + if (size_of_data_area < size) return -EINVAL; } else { /* illegal type */ @@ -2618,76 +2713,77 @@ static int cifs_copy_posix_acl(char * trgt,char * src, const int buflen, } size = posix_acl_xattr_size(count); - if((buflen == 0) || (local_acl == NULL)) { - /* used to query ACL EA size */ - } else if(size > buflen) { + if ((buflen == 0) || (local_acl == NULL)) { + /* used to query ACL EA size */ + } else if (size > buflen) { return -ERANGE; } else /* buffer big enough */ { local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); - for(i = 0;i < count ;i++) { - cifs_convert_ace(&local_acl->a_entries[i],pACE); - pACE ++; + for (i = 0; i < count ; i++) { + cifs_convert_ace(&local_acl->a_entries[i], pACE); + pACE++; } } return size; } -static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace * cifs_ace, - const posix_acl_xattr_entry * local_ace) +static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, + const posix_acl_xattr_entry *local_ace) { __u16 rc = 0; /* 0 = ACL converted ok */ cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); /* BB is there a better way to handle the large uid? */ - if(local_ace->e_id == cpu_to_le32(-1)) { + if (local_ace->e_id == cpu_to_le32(-1)) { /* Probably no need to le convert -1 on any arch but can not hurt */ cifs_ace->cifs_uid = cpu_to_le64(-1); - } else + } else cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); - /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ + /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ return rc; } /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ -static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int buflen, - const int acl_type) +static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, + const int buflen, const int acl_type) { __u16 rc = 0; - struct cifs_posix_acl * cifs_acl = (struct cifs_posix_acl *)parm_data; - posix_acl_xattr_header * local_acl = (posix_acl_xattr_header *)pACL; + struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; + posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; int count; int i; - if((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) + if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) return 0; count = posix_acl_xattr_count((size_t)buflen); - cFYI(1,("setting acl with %d entries from buf of length %d and version of %d", + cFYI(1, ("setting acl with %d entries from buf of length %d and " + "version of %d", count, buflen, le32_to_cpu(local_acl->a_version))); - if(le32_to_cpu(local_acl->a_version) != 2) { - cFYI(1,("unknown POSIX ACL version %d", + if (le32_to_cpu(local_acl->a_version) != 2) { + cFYI(1, ("unknown POSIX ACL version %d", le32_to_cpu(local_acl->a_version))); return 0; } cifs_acl->version = cpu_to_le16(1); - if(acl_type == ACL_TYPE_ACCESS) + if (acl_type == ACL_TYPE_ACCESS) cifs_acl->access_entry_count = cpu_to_le16(count); - else if(acl_type == ACL_TYPE_DEFAULT) + else if (acl_type == ACL_TYPE_DEFAULT) cifs_acl->default_entry_count = cpu_to_le16(count); else { - cFYI(1,("unknown ACL type %d",acl_type)); + cFYI(1, ("unknown ACL type %d", acl_type)); return 0; } - for(i=0;i<count;i++) { + for (i = 0; i < count; i++) { rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], &local_acl->a_entries[i]); - if(rc != 0) { + if (rc != 0) { /* ACE not converted */ break; } } - if(rc == 0) { + if (rc == 0) { rc = (__u16)(count * sizeof(struct cifs_posix_ace)); rc += sizeof(struct cifs_posix_acl); /* BB add check to make sure ACL does not overflow SMB */ @@ -2697,9 +2793,9 @@ static __u16 ACL_to_cifs_posix(char * parm_data,const char * pACL,const int bufl int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - char *acl_inf, const int buflen, const int acl_type, - const struct nls_table *nls_codepage, int remap) + const unsigned char *searchName, + char *acl_inf, const int buflen, const int acl_type, + const struct nls_table *nls_codepage, int remap) { /* SMB_QUERY_POSIX_ACL */ TRANSACTION2_QPI_REQ *pSMB = NULL; @@ -2708,7 +2804,7 @@ CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, int bytes_returned; int name_len; __u16 params, byte_count; - + cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); queryAclRetry: @@ -2716,16 +2812,16 @@ queryAclRetry: (void **) &pSMBr); if (rc) return rc; - + if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; pSMB->FileName[name_len] = 0; pSMB->FileName[name_len+1] = 0; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -2734,7 +2830,7 @@ queryAclRetry: params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); - /* BB find exact max data count below from sess structure BB */ + /* BB find exact max data count below from sess structure BB */ pSMB->MaxDataCount = cpu_to_le16(4000); pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; @@ -2742,7 +2838,8 @@ queryAclRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16( - offsetof(struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + offsetof(struct smb_com_transaction2_qpi_req, + InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -2763,7 +2860,7 @@ queryAclRetry: cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); } else { /* decode response */ - + rc = validate_t2((struct smb_t2_rsp *)pSMBr); if (rc || (pSMBr->ByteCount < 2)) /* BB also check enough total bytes returned */ @@ -2773,7 +2870,7 @@ queryAclRetry: __u16 count = le16_to_cpu(pSMBr->t2.DataCount); rc = cifs_copy_posix_acl(acl_inf, (char *)&pSMBr->hdr.Protocol+data_offset, - buflen,acl_type,count); + buflen, acl_type, count); } } cifs_buf_release(pSMB); @@ -2784,10 +2881,10 @@ queryAclRetry: int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, - const unsigned char *fileName, - const char *local_acl, const int buflen, - const int acl_type, - const struct nls_table *nls_codepage, int remap) + const unsigned char *fileName, + const char *local_acl, const int buflen, + const int acl_type, + const struct nls_table *nls_codepage, int remap) { struct smb_com_transaction2_spi_req *pSMB = NULL; struct smb_com_transaction2_spi_rsp *pSMBr = NULL; @@ -2800,16 +2897,16 @@ CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); setAclRetry: rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fileName, name_len); @@ -2823,15 +2920,15 @@ setAclRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; parm_data = ((char *) &pSMB->hdr.Protocol) + offset; pSMB->ParameterOffset = cpu_to_le16(param_offset); /* convert to on the wire format for POSIX ACL */ - data_count = ACL_to_cifs_posix(parm_data,local_acl,buflen,acl_type); + data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); - if(data_count == 0) { + if (data_count == 0) { rc = -EOPNOTSUPP; goto setACLerrorExit; } @@ -2849,7 +2946,7 @@ setAclRetry: pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); + (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { cFYI(1, ("Set POSIX ACL returned %d", rc)); } @@ -2864,86 +2961,85 @@ setACLerrorExit: /* BB fix tabs in this function FIXME BB */ int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, - const int netfid, __u64 * pExtAttrBits, __u64 *pMask) + const int netfid, __u64 * pExtAttrBits, __u64 *pMask) { - int rc = 0; - struct smb_t2_qfi_req *pSMB = NULL; - struct smb_t2_qfi_rsp *pSMBr = NULL; - int bytes_returned; - __u16 params, byte_count; + int rc = 0; + struct smb_t2_qfi_req *pSMB = NULL; + struct smb_t2_qfi_rsp *pSMBr = NULL; + int bytes_returned; + __u16 params, byte_count; - cFYI(1,("In GetExtAttr")); - if(tcon == NULL) - return -ENODEV; + cFYI(1, ("In GetExtAttr")); + if (tcon == NULL) + return -ENODEV; GetExtAttrRetry: - rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); - if (rc) - return rc; - - params = 2 /* level */ +2 /* fid */; - pSMB->t2.TotalDataCount = 0; - pSMB->t2.MaxParameterCount = cpu_to_le16(4); - /* BB find exact max data count below from sess structure BB */ - pSMB->t2.MaxDataCount = cpu_to_le16(4000); - pSMB->t2.MaxSetupCount = 0; - pSMB->t2.Reserved = 0; - pSMB->t2.Flags = 0; - pSMB->t2.Timeout = 0; - pSMB->t2.Reserved2 = 0; - pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, - Fid) - 4); - pSMB->t2.DataCount = 0; - pSMB->t2.DataOffset = 0; - pSMB->t2.SetupCount = 1; - pSMB->t2.Reserved3 = 0; - pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); - byte_count = params + 1 /* pad */ ; - pSMB->t2.TotalParameterCount = cpu_to_le16(params); - pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; - pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); - pSMB->Pad = 0; + rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, + (void **) &pSMBr); + if (rc) + return rc; + + params = 2 /* level */ +2 /* fid */; + pSMB->t2.TotalDataCount = 0; + pSMB->t2.MaxParameterCount = cpu_to_le16(4); + /* BB find exact max data count below from sess structure BB */ + pSMB->t2.MaxDataCount = cpu_to_le16(4000); + pSMB->t2.MaxSetupCount = 0; + pSMB->t2.Reserved = 0; + pSMB->t2.Flags = 0; + pSMB->t2.Timeout = 0; + pSMB->t2.Reserved2 = 0; + pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, + Fid) - 4); + pSMB->t2.DataCount = 0; + pSMB->t2.DataOffset = 0; + pSMB->t2.SetupCount = 1; + pSMB->t2.Reserved3 = 0; + pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); + byte_count = params + 1 /* pad */ ; + pSMB->t2.TotalParameterCount = cpu_to_le16(params); + pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; + pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); + pSMB->Pad = 0; pSMB->Fid = netfid; - pSMB->hdr.smb_buf_length += byte_count; - pSMB->t2.ByteCount = cpu_to_le16(byte_count); - - rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); - if (rc) { - cFYI(1, ("error %d in GetExtAttr", rc)); - } else { - /* decode response */ - rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc || (pSMBr->ByteCount < 2)) - /* BB also check enough total bytes returned */ - /* If rc should we check for EOPNOSUPP and - disable the srvino flag? or in caller? */ - rc = -EIO; /* bad smb */ - else { - __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - __u16 count = le16_to_cpu(pSMBr->t2.DataCount); - struct file_chattr_info * pfinfo; - /* BB Do we need a cast or hash here ? */ - if(count != 16) { - cFYI(1, ("Illegal size ret in GetExtAttr")); - rc = -EIO; - goto GetExtAttrOut; - } - pfinfo = (struct file_chattr_info *) - (data_offset + (char *) &pSMBr->hdr.Protocol); - *pExtAttrBits = le64_to_cpu(pfinfo->mode); + pSMB->hdr.smb_buf_length += byte_count; + pSMB->t2.ByteCount = cpu_to_le16(byte_count); + + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned, 0); + if (rc) { + cFYI(1, ("error %d in GetExtAttr", rc)); + } else { + /* decode response */ + rc = validate_t2((struct smb_t2_rsp *)pSMBr); + if (rc || (pSMBr->ByteCount < 2)) + /* BB also check enough total bytes returned */ + /* If rc should we check for EOPNOSUPP and + disable the srvino flag? or in caller? */ + rc = -EIO; /* bad smb */ + else { + __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); + __u16 count = le16_to_cpu(pSMBr->t2.DataCount); + struct file_chattr_info *pfinfo; + /* BB Do we need a cast or hash here ? */ + if (count != 16) { + cFYI(1, ("Illegal size ret in GetExtAttr")); + rc = -EIO; + goto GetExtAttrOut; + } + pfinfo = (struct file_chattr_info *) + (data_offset + (char *) &pSMBr->hdr.Protocol); + *pExtAttrBits = le64_to_cpu(pfinfo->mode); *pMask = le64_to_cpu(pfinfo->mask); - } - } + } + } GetExtAttrOut: - cifs_buf_release(pSMB); - if (rc == -EAGAIN) - goto GetExtAttrRetry; - return rc; + cifs_buf_release(pSMB); + if (rc == -EAGAIN) + goto GetExtAttrRetry; + return rc; } - #endif /* CONFIG_POSIX */ @@ -2955,7 +3051,7 @@ static const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}}; /* Convert CIFS ACL to POSIX form */ -static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) +static int parse_sec_desc(struct cifs_sid *psec_desc, int acl_len) { return 0; } @@ -2963,7 +3059,7 @@ static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len) /* Get Security Descriptor (by handle) from remote server for a file or dir */ int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, - /* BB fix up return info */ char *acl_inf, const int buflen, + /* BB fix up return info */ char *acl_inf, const int buflen, const int acl_type /* ACCESS/DEFAULT not sure implication */) { int rc = 0; @@ -2973,7 +3069,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, cFYI(1, ("GetCifsACL")); - rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, + rc = smb_init_ntransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, 8 /* parm len */, tcon, (void **) &pSMB); if (rc) return rc; @@ -2994,23 +3090,23 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, if (rc) { cFYI(1, ("Send error in QuerySecDesc = %d", rc)); } else { /* decode response */ - struct cifs_sid * psec_desc; + struct cifs_sid *psec_desc; __le32 * parm; int parm_len; int data_len; int acl_len; - struct smb_com_ntransact_rsp * pSMBr; + struct smb_com_ntransact_rsp *pSMBr; /* validate_nttransact */ - rc = validate_ntransact(iov[0].iov_base, (char **)&parm, + rc = validate_ntransact(iov[0].iov_base, (char **)&parm, (char **)&psec_desc, &parm_len, &data_len); - - if(rc) + if (rc) goto qsec_out; pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; - cERROR(1,("smb %p parm %p data %p",pSMBr,parm,psec_desc)); /* BB removeme BB */ + cERROR(1, ("smb %p parm %p data %p", + pSMBr, parm, psec_desc)); /* BB removeme BB */ if (le32_to_cpu(pSMBr->ParameterCount) != 4) { rc = -EIO; /* bad smb */ @@ -3020,14 +3116,14 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, /* BB check that data area is minimum length and as big as acl_len */ acl_len = le32_to_cpu(*(__le32 *)parm); - /* BB check if(acl_len > bufsize) */ + /* BB check if (acl_len > bufsize) */ parse_sec_desc(psec_desc, acl_len); } qsec_out: - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(iov[0].iov_base); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ return rc; @@ -3036,9 +3132,9 @@ qsec_out: /* Legacy Query Path Information call for lookup to old servers such as Win9x/WinME */ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - FILE_ALL_INFO * pFinfo, - const struct nls_table *nls_codepage, int remap) + const unsigned char *searchName, + FILE_ALL_INFO *pFinfo, + const struct nls_table *nls_codepage, int remap) { QUERY_INFORMATION_REQ * pSMB; QUERY_INFORMATION_RSP * pSMBr; @@ -3046,31 +3142,31 @@ int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, int bytes_returned; int name_len; - cFYI(1, ("In SMBQPath path %s", searchName)); + cFYI(1, ("In SMBQPath path %s", searchName)); QInfRetry: rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, - PATH_MAX, nls_codepage, remap); + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { + } else { name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); } pSMB->BufferFormat = 0x04; - name_len++; /* account for buffer type byte */ + name_len++; /* account for buffer type byte */ pSMB->hdr.smb_buf_length += (__u16) name_len; pSMB->ByteCount = cpu_to_le16(name_len); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, - (struct smb_hdr *) pSMBr, &bytes_returned, 0); + (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { cFYI(1, ("Send error in QueryInfo = %d", rc)); } else if (pFinfo) { /* decode response */ @@ -3127,17 +3223,17 @@ QPathInfoRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ @@ -3147,7 +3243,7 @@ QPathInfoRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -3156,7 +3252,7 @@ QPathInfoRetry: byte_count = params + 1 /* pad */ ; pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; - if(legacy) + if (legacy) pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); else pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); @@ -3173,16 +3269,18 @@ QPathInfoRetry: if (rc) /* BB add auto retry on EOPNOTSUPP? */ rc = -EIO; - else if (!legacy && (pSMBr->ByteCount < 40)) + else if (!legacy && (pSMBr->ByteCount < 40)) rc = -EIO; /* bad smb */ - else if(legacy && (pSMBr->ByteCount < 24)) - rc = -EIO; /* 24 or 26 expected but we do not read last field */ - else if (pFindData){ + else if (legacy && (pSMBr->ByteCount < 24)) + rc = -EIO; /* 24 or 26 expected but we do not read + last field */ + else if (pFindData) { int size; __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - if(legacy) /* we do not read the last field, EAsize, fortunately - since it varies by subdialect and on Set vs. Get, is - two bytes or 4 bytes depending but we don't care here */ + if (legacy) /* we do not read the last field, EAsize, + fortunately since it varies by subdialect + and on Set vs. Get, is two bytes or 4 + bytes depending but we don't care here */ size = sizeof(FILE_INFO_STANDARD); else size = sizeof(FILE_ALL_INFO); @@ -3226,24 +3324,24 @@ UnixQPathInfoRetry: PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); /* BB find exact max SMB PDU from sess structure BB */ - pSMB->MaxDataCount = cpu_to_le16(4000); + pSMB->MaxDataCount = cpu_to_le16(4000); pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; pSMB->Flags = 0; pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -3303,12 +3401,11 @@ findUniqueRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX - /* find define for this maxpathcomponent */ - , nls_codepage); + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + PATH_MAX, nls_codepage); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -3324,7 +3421,7 @@ findUniqueRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16( - offsetof(struct smb_com_transaction2_ffirst_req,InformationLevel) - 4); + offsetof(struct smb_com_transaction2_ffirst_req, InformationLevel)-4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; /* one byte, no need to le convert */ @@ -3364,10 +3461,10 @@ findUniqueRetry: /* xid, tcon, searchName and codepage are input parms, rest are returned */ int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, - const char *searchName, + const char *searchName, const struct nls_table *nls_codepage, - __u16 * pnetfid, - struct cifs_search_info * psrch_inf, int remap, const char dirsep) + __u16 *pnetfid, + struct cifs_search_info *psrch_inf, int remap, const char dirsep) { /* level 257 SMB_ */ TRANSACTION2_FFIRST_REQ *pSMB = NULL; @@ -3378,7 +3475,7 @@ CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, int name_len; __u16 params, byte_count; - cFYI(1, ("In FindFirst for %s",searchName)); + cFYI(1, ("In FindFirst for %s", searchName)); findFirstRetry: rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, @@ -3388,7 +3485,7 @@ findFirstRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName,searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); /* We can not add the asterik earlier in case it got remapped to 0xF03A as if it were part of the @@ -3405,7 +3502,7 @@ findFirstRetry: } else { /* BB add check for overrun of SMB buf BB */ name_len = strnlen(searchName, PATH_MAX); /* BB fix here and in unicode clause above ie - if(name_len > buffersize-header) + if (name_len > buffersize-header) free buffer exit; BB */ strncpy(pSMB->FileName, searchName, name_len); pSMB->FileName[name_len] = dirsep; @@ -3438,8 +3535,8 @@ findFirstRetry: pSMB->SearchAttributes = cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); - pSMB->SearchCount= cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); - pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | + pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); + pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); @@ -3466,7 +3563,7 @@ findFirstRetry: } else { /* decode response */ /* BB remember to free buffer if error BB */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if(rc == 0) { + if (rc == 0) { if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) psrch_inf->unicode = TRUE; else @@ -3474,18 +3571,19 @@ findFirstRetry: psrch_inf->ntwrk_buf_start = (char *)pSMBr; psrch_inf->smallBuf = 0; - psrch_inf->srch_entries_start = - (char *) &pSMBr->hdr.Protocol + + psrch_inf->srch_entries_start = + (char *) &pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.DataOffset); parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.ParameterOffset)); - if(parms->EndofSearch) + if (parms->EndofSearch) psrch_inf->endOfSearch = TRUE; else psrch_inf->endOfSearch = FALSE; - psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); + psrch_inf->entries_in_buffer = + le16_to_cpu(parms->SearchCount); psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + psrch_inf->entries_in_buffer; *pnetfid = parms->SearchHandle; @@ -3498,7 +3596,7 @@ findFirstRetry: } int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, - __u16 searchHandle, struct cifs_search_info * psrch_inf) + __u16 searchHandle, struct cifs_search_info *psrch_inf) { TRANSACTION2_FNEXT_REQ *pSMB = NULL; TRANSACTION2_FNEXT_RSP *pSMBr = NULL; @@ -3510,7 +3608,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("In FindNext")); - if(psrch_inf->endOfSearch == TRUE) + if (psrch_inf->endOfSearch == TRUE) return -ENOENT; rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, @@ -3518,12 +3616,13 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, if (rc) return rc; - params = 14; /* includes 2 bytes of null string, converted to LE below */ + params = 14; /* includes 2 bytes of null string, converted to LE below*/ byte_count = 0; pSMB->TotalDataCount = 0; /* no EAs */ pSMB->MaxParameterCount = cpu_to_le16(8); pSMB->MaxDataCount = - cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); + cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & + 0xFFFFFF00); pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; pSMB->Flags = 0; @@ -3539,15 +3638,6 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, pSMB->SearchHandle = searchHandle; /* always kept as le */ pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize / sizeof (FILE_UNIX_INFO)); - /* test for Unix extensions */ -/* if (tcon->ses->capabilities & CAP_UNIX) { - pSMB->InformationLevel = cpu_to_le16(SMB_FIND_FILE_UNIX); - psrch_inf->info_level = SMB_FIND_FILE_UNIX; - } else { - pSMB->InformationLevel = - cpu_to_le16(SMB_FIND_FILE_DIRECTORY_INFO); - psrch_inf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; - } */ pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); pSMB->ResumeKey = psrch_inf->resume_key; pSMB->SearchFlags = @@ -3555,7 +3645,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, name_len = psrch_inf->resume_name_len; params += name_len; - if(name_len < PATH_MAX) { + if (name_len < PATH_MAX) { memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); byte_count += name_len; /* 14 byte parm len above enough for 2 byte null terminator */ @@ -3570,20 +3660,20 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); - + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); cifs_stats_inc(&tcon->num_fnext); if (rc) { if (rc == -EBADF) { psrch_inf->endOfSearch = TRUE; - rc = 0; /* search probably was closed at end of search above */ + rc = 0; /* search probably was closed at end of search*/ } else cFYI(1, ("FindNext returned = %d", rc)); } else { /* decode response */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - - if(rc == 0) { + + if (rc == 0) { /* BB fixme add lock for file (srch_info) struct here */ if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) psrch_inf->unicode = TRUE; @@ -3594,7 +3684,7 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, parms = (T2_FNEXT_RSP_PARMS *)response_data; response_data = (char *)&pSMBr->hdr.Protocol + le16_to_cpu(pSMBr->t2.DataOffset); - if(psrch_inf->smallBuf) + if (psrch_inf->smallBuf) cifs_small_buf_release( psrch_inf->ntwrk_buf_start); else @@ -3602,15 +3692,16 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, psrch_inf->srch_entries_start = response_data; psrch_inf->ntwrk_buf_start = (char *)pSMB; psrch_inf->smallBuf = 0; - if(parms->EndofSearch) + if (parms->EndofSearch) psrch_inf->endOfSearch = TRUE; else psrch_inf->endOfSearch = FALSE; - - psrch_inf->entries_in_buffer = le16_to_cpu(parms->SearchCount); + psrch_inf->entries_in_buffer = + le16_to_cpu(parms->SearchCount); psrch_inf->index_of_last_entry += psrch_inf->entries_in_buffer; -/* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",psrch_inf->entries_in_buffer,psrch_inf->index_of_last_entry)); */ +/* cFYI(1,("fnxt2 entries in buf %d index_of_last %d", + psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */ /* BB fixme add unlock here */ } @@ -3625,12 +3716,12 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, FNext2_err_exit: if (rc != 0) cifs_buf_release(pSMB); - return rc; } int -CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle) +CIFSFindClose(const int xid, struct cifsTconInfo *tcon, + const __u16 searchHandle) { int rc = 0; FINDCLOSE_REQ *pSMB = NULL; @@ -3642,7 +3733,7 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle /* no sense returning error if session restarted as file handle has been closed */ - if(rc == -EAGAIN) + if (rc == -EAGAIN) return 0; if (rc) return rc; @@ -3667,9 +3758,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, - const unsigned char *searchName, - __u64 * inode_number, - const struct nls_table *nls_codepage, int remap) + const unsigned char *searchName, + __u64 * inode_number, + const struct nls_table *nls_codepage, int remap) { int rc = 0; TRANSACTION2_QPI_REQ *pSMB = NULL; @@ -3677,24 +3768,23 @@ CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, int name_len, bytes_returned; __u16 params, byte_count; - cFYI(1,("In GetSrvInodeNum for %s",searchName)); - if(tcon == NULL) - return -ENODEV; + cFYI(1, ("In GetSrvInodeNum for %s", searchName)); + if (tcon == NULL) + return -ENODEV; GetInodeNumberRetry: rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; - if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, - PATH_MAX,nls_codepage, remap); + PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, searchName, name_len); @@ -3711,7 +3801,7 @@ GetInodeNumberRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -3737,12 +3827,12 @@ GetInodeNumberRetry: /* If rc should we check for EOPNOSUPP and disable the srvino flag? or in caller? */ rc = -EIO; /* bad smb */ - else { + else { __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); __u16 count = le16_to_cpu(pSMBr->t2.DataCount); - struct file_internal_info * pfinfo; + struct file_internal_info *pfinfo; /* BB Do we need a cast or hash here ? */ - if(count < 8) { + if (count < 8) { cFYI(1, ("Illegal size ret in QryIntrnlInf")); rc = -EIO; goto GetInodeNumOut; @@ -3769,12 +3859,12 @@ CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, /* TRANS2_GET_DFS_REFERRAL */ TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; - struct dfs_referral_level_3 * referrals = NULL; + struct dfs_referral_level_3 *referrals = NULL; int rc = 0; int bytes_returned; int name_len; unsigned int i; - char * temp; + char *temp; __u16 params, byte_count; *number_of_UNC_in_array = 0; *targetUNCs = NULL; @@ -3787,8 +3877,8 @@ getDFSRetry: (void **) &pSMBr); if (rc) return rc; - - /* server pointer checked in called function, + + /* server pointer checked in called function, but should never be null here anyway */ pSMB->hdr.Mid = GetNextMid(ses->server); pSMB->hdr.Tid = ses->ipc_tid; @@ -3807,19 +3897,19 @@ getDFSRetry: searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(searchName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->RequestFileName, searchName, name_len); } - if(ses->server) { - if(ses->server->secMode & + if (ses->server) { + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; } - pSMB->hdr.Uid = ses->Suid; + pSMB->hdr.Uid = ses->Suid; params = 2 /* level */ + name_len /*includes null */ ; pSMB->TotalDataCount = 0; @@ -3833,7 +3923,7 @@ getDFSRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); + struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); @@ -3852,74 +3942,87 @@ getDFSRetry: /* BB Add logic to parse referrals here */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc || (pSMBr->ByteCount < 17)) /* BB also check enough total bytes returned */ + /* BB Also check if enough total bytes returned? */ + if (rc || (pSMBr->ByteCount < 17)) rc = -EIO; /* bad smb */ else { - __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); + __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); __u16 data_count = le16_to_cpu(pSMBr->t2.DataCount); cFYI(1, - ("Decoding GetDFSRefer response. BCC: %d Offset %d", + ("Decoding GetDFSRefer response BCC: %d Offset %d", pSMBr->ByteCount, data_offset)); - referrals = - (struct dfs_referral_level_3 *) + referrals = + (struct dfs_referral_level_3 *) (8 /* sizeof start of data block */ + data_offset + - (char *) &pSMBr->hdr.Protocol); - cFYI(1,("num_referrals: %d dfs flags: 0x%x ... \nfor referral one refer size: 0x%x srv type: 0x%x refer flags: 0x%x ttl: 0x%x", - le16_to_cpu(pSMBr->NumberOfReferrals),le16_to_cpu(pSMBr->DFSFlags), le16_to_cpu(referrals->ReferralSize),le16_to_cpu(referrals->ServerType),le16_to_cpu(referrals->ReferralFlags),le16_to_cpu(referrals->TimeToLive))); + (char *) &pSMBr->hdr.Protocol); + cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n" + "for referral one refer size: 0x%x srv " + "type: 0x%x refer flags: 0x%x ttl: 0x%x", + le16_to_cpu(pSMBr->NumberOfReferrals), + le16_to_cpu(pSMBr->DFSFlags), + le16_to_cpu(referrals->ReferralSize), + le16_to_cpu(referrals->ServerType), + le16_to_cpu(referrals->ReferralFlags), + le16_to_cpu(referrals->TimeToLive))); /* BB This field is actually two bytes in from start of data block so we could do safety check that DataBlock begins at address of pSMBr->NumberOfReferrals */ - *number_of_UNC_in_array = le16_to_cpu(pSMBr->NumberOfReferrals); + *number_of_UNC_in_array = + le16_to_cpu(pSMBr->NumberOfReferrals); /* BB Fix below so can return more than one referral */ - if(*number_of_UNC_in_array > 1) + if (*number_of_UNC_in_array > 1) *number_of_UNC_in_array = 1; /* get the length of the strings describing refs */ name_len = 0; - for(i=0;i<*number_of_UNC_in_array;i++) { + for (i = 0; i < *number_of_UNC_in_array; i++) { /* make sure that DfsPathOffset not past end */ - __u16 offset = le16_to_cpu(referrals->DfsPathOffset); + __u16 offset = + le16_to_cpu(referrals->DfsPathOffset); if (offset > data_count) { - /* if invalid referral, stop here and do + /* if invalid referral, stop here and do not try to copy any more */ *number_of_UNC_in_array = i; break; - } + } temp = ((char *)referrals) + offset; if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { - name_len += UniStrnlen((wchar_t *)temp,data_count); + name_len += UniStrnlen((wchar_t *)temp, + data_count); } else { - name_len += strnlen(temp,data_count); + name_len += strnlen(temp, data_count); } referrals++; - /* BB add check that referral pointer does not fall off end PDU */ - + /* BB add check that referral pointer does + not fall off end PDU */ } /* BB add check for name_len bigger than bcc */ - *targetUNCs = - kmalloc(name_len+1+ (*number_of_UNC_in_array),GFP_KERNEL); - if(*targetUNCs == NULL) { + *targetUNCs = + kmalloc(name_len+1+(*number_of_UNC_in_array), + GFP_KERNEL); + if (*targetUNCs == NULL) { rc = -ENOMEM; goto GetDFSRefExit; } /* copy the ref strings */ - referrals = - (struct dfs_referral_level_3 *) - (8 /* sizeof data hdr */ + - data_offset + + referrals = (struct dfs_referral_level_3 *) + (8 /* sizeof data hdr */ + data_offset + (char *) &pSMBr->hdr.Protocol); - for(i=0;i<*number_of_UNC_in_array;i++) { - temp = ((char *)referrals) + le16_to_cpu(referrals->DfsPathOffset); + for (i = 0; i < *number_of_UNC_in_array; i++) { + temp = ((char *)referrals) + + le16_to_cpu(referrals->DfsPathOffset); if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { cifs_strfromUCS_le(*targetUNCs, - (__le16 *) temp, name_len, nls_codepage); + (__le16 *) temp, + name_len, + nls_codepage); } else { - strncpy(*targetUNCs,temp,name_len); + strncpy(*targetUNCs, temp, name_len); } /* BB update target_uncs pointers */ referrals++; @@ -3996,18 +4099,17 @@ oldQFSInfoRetry: rc = -EIO; /* bad smb */ else { __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - cFYI(1,("qfsinf resp BCC: %d Offset %d", + cFYI(1, ("qfsinf resp BCC: %d Offset %d", pSMBr->ByteCount, data_offset)); - response_data = - (FILE_SYSTEM_ALLOC_INFO *) + response_data = (FILE_SYSTEM_ALLOC_INFO *) (((char *) &pSMBr->hdr.Protocol) + data_offset); FSData->f_bsize = le16_to_cpu(response_data->BytesPerSector) * le32_to_cpu(response_data-> SectorsPerAllocationUnit); FSData->f_blocks = - le32_to_cpu(response_data->TotalAllocationUnits); + le32_to_cpu(response_data->TotalAllocationUnits); FSData->f_bfree = FSData->f_bavail = le32_to_cpu(response_data->FreeAllocationUnits); cFYI(1, @@ -4056,7 +4158,7 @@ QFSInfoRetry: pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); + struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -4071,7 +4173,7 @@ QFSInfoRetry: if (rc) { cFYI(1, ("Send error in QFSInfo = %d", rc)); } else { /* decode response */ - rc = validate_t2((struct smb_t2_rsp *)pSMBr); + rc = validate_t2((struct smb_t2_rsp *)pSMBr); if (rc || (pSMBr->ByteCount < 24)) rc = -EIO; /* bad smb */ @@ -4136,7 +4238,7 @@ QFSAttributeRetry: pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); + struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -4153,7 +4255,8 @@ QFSAttributeRetry: } else { /* decode response */ rc = validate_t2((struct smb_t2_rsp *)pSMBr); - if (rc || (pSMBr->ByteCount < 13)) { /* BB also check enough bytes returned */ + if (rc || (pSMBr->ByteCount < 13)) { + /* BB also check if enough bytes returned */ rc = -EIO; /* bad smb */ } else { __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); @@ -4204,7 +4307,7 @@ QFSDeviceRetry: pSMB->TotalParameterCount = cpu_to_le16(params); pSMB->ParameterCount = pSMB->TotalParameterCount; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); + struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; @@ -4274,8 +4377,8 @@ QFSUnixRetry: byte_count = params + 1 /* pad */ ; pSMB->ParameterCount = cpu_to_le16(params); pSMB->TotalParameterCount = pSMB->ParameterCount; - pSMB->ParameterOffset = cpu_to_le16(offsetof(struct - smb_com_transaction2_qfsi_req, InformationLevel) - 4); + pSMB->ParameterOffset = cpu_to_le16(offsetof(struct + smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); @@ -4335,7 +4438,8 @@ SETFSUnixRetry: pSMB->Flags = 0; pSMB->Timeout = 0; pSMB->Reserved2 = 0; - param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) - 4; + param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) + - 4; offset = param_offset + params; pSMB->MaxParameterCount = cpu_to_le16(4); @@ -4417,8 +4521,8 @@ QFSPosixRetry: byte_count = params + 1 /* pad */ ; pSMB->ParameterCount = cpu_to_le16(params); pSMB->TotalParameterCount = pSMB->ParameterCount; - pSMB->ParameterOffset = cpu_to_le16(offsetof(struct - smb_com_transaction2_qfsi_req, InformationLevel) - 4); + pSMB->ParameterOffset = cpu_to_le16(offsetof(struct + smb_com_transaction2_qfsi_req, InformationLevel) - 4); pSMB->SetupCount = 1; pSMB->Reserved3 = 0; pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); @@ -4447,18 +4551,18 @@ QFSPosixRetry: le64_to_cpu(response_data->TotalBlocks); FSData->f_bfree = le64_to_cpu(response_data->BlocksAvail); - if(response_data->UserBlocksAvail == cpu_to_le64(-1)) { + if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { FSData->f_bavail = FSData->f_bfree; } else { FSData->f_bavail = - le64_to_cpu(response_data->UserBlocksAvail); + le64_to_cpu(response_data->UserBlocksAvail); } - if(response_data->TotalFileNodes != cpu_to_le64(-1)) + if (response_data->TotalFileNodes != cpu_to_le64(-1)) FSData->f_files = - le64_to_cpu(response_data->TotalFileNodes); - if(response_data->FreeFileNodes != cpu_to_le64(-1)) + le64_to_cpu(response_data->TotalFileNodes); + if (response_data->FreeFileNodes != cpu_to_le64(-1)) FSData->f_ffree = - le64_to_cpu(response_data->FreeFileNodes); + le64_to_cpu(response_data->FreeFileNodes); } } cifs_buf_release(pSMB); @@ -4470,15 +4574,15 @@ QFSPosixRetry: } -/* We can not use write of zero bytes trick to - set file size due to need for large file support. Also note that - this SetPathInfo is preferred to SetFileInfo based method in next +/* We can not use write of zero bytes trick to + set file size due to need for large file support. Also note that + this SetPathInfo is preferred to SetFileInfo based method in next routine which is only needed to work around a sharing violation bug in Samba which this routine can run into */ int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, - __u64 size, int SetAllocation, + __u64 size, int SetAllocation, const struct nls_table *nls_codepage, int remap) { struct smb_com_transaction2_spi_req *pSMB = NULL; @@ -4517,22 +4621,22 @@ SetEOFRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; - if(SetAllocation) { - if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) - pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); - else - pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); - } else /* Set File Size */ { + if (SetAllocation) { + if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) + pSMB->InformationLevel = + cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); + else + pSMB->InformationLevel = + cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); + } else /* Set File Size */ { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); else pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); } parm_data = @@ -4567,8 +4671,8 @@ SetEOFRetry: } int -CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, - __u16 fid, __u32 pid_of_opener, int SetAllocation) +CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, + __u16 fid, __u32 pid_of_opener, int SetAllocation) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; @@ -4589,7 +4693,7 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); - + params = 6; pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; @@ -4599,7 +4703,7 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; + data_offset = (char *) (&pSMB->hdr.Protocol) + offset; count = sizeof(struct file_end_of_file_info); pSMB->MaxParameterCount = cpu_to_le16(2); @@ -4614,25 +4718,25 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, pSMB->TotalParameterCount = pSMB->ParameterCount; pSMB->ParameterOffset = cpu_to_le16(param_offset); parm_data = - (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + - offset); + (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + + offset); pSMB->DataOffset = cpu_to_le16(offset); parm_data->FileSize = cpu_to_le64(size); pSMB->Fid = fid; - if(SetAllocation) { + if (SetAllocation) { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); else pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); - } else /* Set File Size */ { + } else /* Set File Size */ { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); else pSMB->InformationLevel = - cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); + cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); } pSMB->Reserved4 = 0; pSMB->hdr.smb_buf_length += byte_count; @@ -4648,21 +4752,21 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, if (pSMB) cifs_small_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; } -/* Some legacy servers such as NT4 require that the file times be set on +/* Some legacy servers such as NT4 require that the file times be set on an open handle, rather than by pathname - this is awkward due to potential access conflicts on the open, but it is unavoidable for these old servers since the only other choice is to go from 100 nanosecond DCE time and resort to the original setpathinfo level which takes the ancient DOS time format with 2 second granularity */ int -CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_INFO * data, - __u16 fid) +CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, + const FILE_BASIC_INFO *data, __u16 fid) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; @@ -4684,7 +4788,7 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I use an existing handle (rather than opening one on the fly) */ /* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/ - + params = 6; pSMB->MaxSetupCount = 0; pSMB->Reserved = 0; @@ -4694,7 +4798,7 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; offset = param_offset + params; - data_offset = (char *) (&pSMB->hdr.Protocol) + offset; + data_offset = (char *) (&pSMB->hdr.Protocol) + offset; count = sizeof (FILE_BASIC_INFO); pSMB->MaxParameterCount = cpu_to_le16(2); @@ -4717,16 +4821,16 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I pSMB->Reserved4 = 0; pSMB->hdr.smb_buf_length += byte_count; pSMB->ByteCount = cpu_to_le16(byte_count); - memcpy(data_offset,data,sizeof(FILE_BASIC_INFO)); + memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, (struct smb_hdr *) pSMBr, &bytes_returned, 0); if (rc) { - cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc)); + cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); } cifs_small_buf_release(pSMB); - /* Note: On -EAGAIN error only caller can retry on handle based calls + /* Note: On -EAGAIN error only caller can retry on handle based calls since file handle passed in no longer valid */ return rc; @@ -4735,7 +4839,7 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName, - const FILE_BASIC_INFO * data, + const FILE_BASIC_INFO *data, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_SPI_REQ *pSMB = NULL; @@ -4760,7 +4864,7 @@ SetTimesRetry: PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fileName, name_len); @@ -4776,7 +4880,7 @@ SetTimesRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (char *) (&pSMB->hdr.Protocol) + offset; pSMB->ParameterOffset = cpu_to_le16(param_offset); @@ -4837,11 +4941,11 @@ SetAttrLgcyRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - ConvertToUCS((__le16 *) pSMB->fileName, fileName, + ConvertToUCS((__le16 *) pSMB->fileName, fileName, PATH_MAX, nls_codepage); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->fileName, fileName, name_len); @@ -4867,8 +4971,8 @@ SetAttrLgcyRetry: int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon, - char *fileName, __u64 mode, __u64 uid, __u64 gid, - dev_t device, const struct nls_table *nls_codepage, + char *fileName, __u64 mode, __u64 uid, __u64 gid, + dev_t device, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_SPI_REQ *pSMB = NULL; @@ -4888,7 +4992,7 @@ setPermsRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -4908,7 +5012,7 @@ setPermsRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; data_offset = (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + @@ -4931,7 +5035,7 @@ setPermsRetry: older clients, but we should be precise - we use SetFileSize to set file size and do not want to truncate file size to zero accidently as happened on one Samba server beta by putting - zero instead of -1 here */ + zero instead of -1 here */ data_offset->EndOfFile = NO_CHANGE_64; data_offset->NumOfBytes = NO_CHANGE_64; data_offset->LastStatusChange = NO_CHANGE_64; @@ -4943,20 +5047,20 @@ setPermsRetry: data_offset->DevMajor = cpu_to_le64(MAJOR(device)); data_offset->DevMinor = cpu_to_le64(MINOR(device)); data_offset->Permissions = cpu_to_le64(mode); - - if(S_ISREG(mode)) + + if (S_ISREG(mode)) data_offset->Type = cpu_to_le32(UNIX_FILE); - else if(S_ISDIR(mode)) + else if (S_ISDIR(mode)) data_offset->Type = cpu_to_le32(UNIX_DIR); - else if(S_ISLNK(mode)) + else if (S_ISLNK(mode)) data_offset->Type = cpu_to_le32(UNIX_SYMLINK); - else if(S_ISCHR(mode)) + else if (S_ISCHR(mode)) data_offset->Type = cpu_to_le32(UNIX_CHARDEV); - else if(S_ISBLK(mode)) + else if (S_ISBLK(mode)) data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); - else if(S_ISFIFO(mode)) + else if (S_ISFIFO(mode)) data_offset->Type = cpu_to_le32(UNIX_FIFO); - else if(S_ISSOCK(mode)) + else if (S_ISSOCK(mode)) data_offset->Type = cpu_to_le32(UNIX_SOCKET); @@ -4974,20 +5078,20 @@ setPermsRetry: return rc; } -int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, +int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, const int notify_subdirs, const __u16 netfid, - __u32 filter, struct file * pfile, int multishot, + __u32 filter, struct file *pfile, int multishot, const struct nls_table *nls_codepage) { int rc = 0; - struct smb_com_transaction_change_notify_req * pSMB = NULL; - struct smb_com_ntransaction_change_notify_rsp * pSMBr = NULL; + struct smb_com_transaction_change_notify_req *pSMB = NULL; + struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; struct dir_notify_req *dnotify_req; int bytes_returned; - cFYI(1, ("In CIFSSMBNotify for file handle %d",(int)netfid)); + cFYI(1, ("In CIFSSMBNotify for file handle %d", (int)netfid)); rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, - (void **) &pSMBr); + (void **) &pSMBr); if (rc) return rc; @@ -5008,7 +5112,7 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, pSMB->SetupCount = 4; /* single byte does not need le conversion */ pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); pSMB->ParameterCount = pSMB->TotalParameterCount; - if(notify_subdirs) + if (notify_subdirs) pSMB->WatchTree = 1; /* one byte - no le conversion needed */ pSMB->Reserved2 = 0; pSMB->CompletionFilter = cpu_to_le32(filter); @@ -5021,11 +5125,11 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, cFYI(1, ("Error in Notify = %d", rc)); } else { /* Add file to outstanding requests */ - /* BB change to kmem cache alloc */ + /* BB change to kmem cache alloc */ dnotify_req = kmalloc( sizeof(struct dir_notify_req), GFP_KERNEL); - if(dnotify_req) { + if (dnotify_req) { dnotify_req->Pid = pSMB->hdr.Pid; dnotify_req->PidHigh = pSMB->hdr.PidHigh; dnotify_req->Mid = pSMB->hdr.Mid; @@ -5036,20 +5140,20 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, dnotify_req->filter = filter; dnotify_req->multishot = multishot; spin_lock(&GlobalMid_Lock); - list_add_tail(&dnotify_req->lhead, + list_add_tail(&dnotify_req->lhead, &GlobalDnotifyReqList); spin_unlock(&GlobalMid_Lock); - } else + } else rc = -ENOMEM; } cifs_buf_release(pSMB); - return rc; + return rc; } #ifdef CONFIG_CIFS_XATTR ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, - char * EAData, size_t buf_size, + char *EAData, size_t buf_size, const struct nls_table *nls_codepage, int remap) { /* BB assumes one setup word */ @@ -5058,8 +5162,8 @@ CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, int rc = 0; int bytes_returned; int name_len; - struct fea * temp_fea; - char * temp_ptr; + struct fea *temp_fea; + char *temp_ptr; __u16 params, byte_count; cFYI(1, ("In Query All EAs path %s", searchName)); @@ -5071,7 +5175,7 @@ QAllEAsRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -5081,7 +5185,7 @@ QAllEAsRetry: strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ @@ -5091,7 +5195,7 @@ QAllEAsRetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -5115,7 +5219,7 @@ QAllEAsRetry: /* BB also check enough total bytes returned */ /* BB we need to improve the validity checking of these trans2 responses */ - if (rc || (pSMBr->ByteCount < 4)) + if (rc || (pSMBr->ByteCount < 4)) rc = -EIO; /* bad smb */ /* else if (pFindData){ memcpy((char *) pFindData, @@ -5128,39 +5232,40 @@ QAllEAsRetry: /* check that each element of each entry does not go beyond end of list */ __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - struct fealist * ea_response_data; + struct fealist *ea_response_data; rc = 0; /* validate_trans2_offsets() */ - /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ + /* BB check if start of smb + data_offset > &bcc+ bcc */ ea_response_data = (struct fealist *) (((char *) &pSMBr->hdr.Protocol) + data_offset); name_len = le32_to_cpu(ea_response_data->list_len); - cFYI(1,("ea length %d", name_len)); - if(name_len <= 8) { + cFYI(1, ("ea length %d", name_len)); + if (name_len <= 8) { /* returned EA size zeroed at top of function */ - cFYI(1,("empty EA list returned from server")); + cFYI(1, ("empty EA list returned from server")); } else { /* account for ea list len */ name_len -= 4; temp_fea = ea_response_data->list; temp_ptr = (char *)temp_fea; - while(name_len > 0) { + while (name_len > 0) { __u16 value_len; name_len -= 4; temp_ptr += 4; rc += temp_fea->name_len; /* account for prefix user. and trailing null */ - rc = rc + 5 + 1; - if(rc<(int)buf_size) { - memcpy(EAData,"user.",5); - EAData+=5; - memcpy(EAData,temp_ptr,temp_fea->name_len); - EAData+=temp_fea->name_len; + rc = rc + 5 + 1; + if (rc < (int)buf_size) { + memcpy(EAData, "user.", 5); + EAData += 5; + memcpy(EAData, temp_ptr, + temp_fea->name_len); + EAData += temp_fea->name_len; /* null terminate name */ *EAData = 0; EAData = EAData + 1; - } else if(buf_size == 0) { + } else if (buf_size == 0) { /* skip copy - calc size only */ } else { /* stop before overrun buffer */ @@ -5172,11 +5277,15 @@ QAllEAsRetry: /* account for trailing null */ name_len--; temp_ptr++; - value_len = le16_to_cpu(temp_fea->value_len); + value_len = + le16_to_cpu(temp_fea->value_len); name_len -= value_len; temp_ptr += value_len; - /* BB check that temp_ptr is still within smb BB*/ - /* no trailing null to account for in value len */ + /* BB check that temp_ptr is still + within the SMB BB*/ + + /* no trailing null to account for + in value len */ /* go on to next EA */ temp_fea = (struct fea *)temp_ptr; } @@ -5191,9 +5300,9 @@ QAllEAsRetry: return (ssize_t)rc; } -ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, - const unsigned char * searchName,const unsigned char * ea_name, - unsigned char * ea_value, size_t buf_size, +ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, + const unsigned char *searchName, const unsigned char *ea_name, + unsigned char *ea_value, size_t buf_size, const struct nls_table *nls_codepage, int remap) { TRANSACTION2_QPI_REQ *pSMB = NULL; @@ -5201,8 +5310,8 @@ ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon, int rc = 0; int bytes_returned; int name_len; - struct fea * temp_fea; - char * temp_ptr; + struct fea *temp_fea; + char *temp_ptr; __u16 params, byte_count; cFYI(1, ("In Query EA path %s", searchName)); @@ -5214,7 +5323,7 @@ QEARetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, + cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; @@ -5224,7 +5333,7 @@ QEARetry: strncpy(pSMB->FileName, searchName, name_len); } - params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */ ; + params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; pSMB->TotalDataCount = 0; pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(4000); /* BB find exact max SMB PDU from sess structure BB */ @@ -5234,7 +5343,7 @@ QEARetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; pSMB->ParameterOffset = cpu_to_le16(offsetof( - struct smb_com_transaction2_qpi_req ,InformationLevel) - 4); + struct smb_com_transaction2_qpi_req, InformationLevel) - 4); pSMB->DataCount = 0; pSMB->DataOffset = 0; pSMB->SetupCount = 1; @@ -5258,7 +5367,7 @@ QEARetry: /* BB also check enough total bytes returned */ /* BB we need to improve the validity checking of these trans2 responses */ - if (rc || (pSMBr->ByteCount < 4)) + if (rc || (pSMBr->ByteCount < 4)) rc = -EIO; /* bad smb */ /* else if (pFindData){ memcpy((char *) pFindData, @@ -5271,18 +5380,18 @@ QEARetry: /* check that each element of each entry does not go beyond end of list */ __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); - struct fealist * ea_response_data; + struct fealist *ea_response_data; rc = -ENODATA; /* validate_trans2_offsets() */ - /* BB to check if(start of smb + data_offset > &bcc+ bcc)*/ + /* BB check if start of smb + data_offset > &bcc+ bcc*/ ea_response_data = (struct fealist *) (((char *) &pSMBr->hdr.Protocol) + data_offset); name_len = le32_to_cpu(ea_response_data->list_len); - cFYI(1,("ea length %d", name_len)); - if(name_len <= 8) { + cFYI(1, ("ea length %d", name_len)); + if (name_len <= 8) { /* returned EA size zeroed at top of function */ - cFYI(1,("empty EA list returned from server")); + cFYI(1, ("empty EA list returned from server")); } else { /* account for ea list len */ name_len -= 4; @@ -5290,28 +5399,30 @@ QEARetry: temp_ptr = (char *)temp_fea; /* loop through checking if we have a matching name and then return the associated value */ - while(name_len > 0) { + while (name_len > 0) { __u16 value_len; name_len -= 4; temp_ptr += 4; - value_len = le16_to_cpu(temp_fea->value_len); - /* BB validate that value_len falls within SMB, - even though maximum for name_len is 255 */ - if(memcmp(temp_fea->name,ea_name, + value_len = + le16_to_cpu(temp_fea->value_len); + /* BB validate that value_len falls within SMB, + even though maximum for name_len is 255 */ + if (memcmp(temp_fea->name, ea_name, temp_fea->name_len) == 0) { /* found a match */ rc = value_len; /* account for prefix user. and trailing null */ - if(rc<=(int)buf_size) { + if (rc <= (int)buf_size) { memcpy(ea_value, temp_fea->name+temp_fea->name_len+1, rc); - /* ea values, unlike ea names, - are not null terminated */ - } else if(buf_size == 0) { + /* ea values, unlike ea + names, are not null + terminated */ + } else if (buf_size == 0) { /* skip copy - calc size only */ } else { - /* stop before overrun buffer */ + /* stop before overrun buffer */ rc = -ERANGE; } break; @@ -5323,11 +5434,11 @@ QEARetry: temp_ptr++; name_len -= value_len; temp_ptr += value_len; - /* no trailing null to account for in value len */ - /* go on to next EA */ + /* No trailing null to account for in + value_len. Go on to next EA */ temp_fea = (struct fea *)temp_ptr; } - } + } } } if (pSMB) @@ -5340,9 +5451,9 @@ QEARetry: int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, - const char * ea_name, const void * ea_value, - const __u16 ea_value_len, const struct nls_table *nls_codepage, - int remap) + const char *ea_name, const void *ea_value, + const __u16 ea_value_len, const struct nls_table *nls_codepage, + int remap) { struct smb_com_transaction2_spi_req *pSMB = NULL; struct smb_com_transaction2_spi_rsp *pSMBr = NULL; @@ -5361,11 +5472,11 @@ SetEARetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, + cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, PATH_MAX, nls_codepage, remap); name_len++; /* trailing null */ name_len *= 2; - } else { /* BB improve the check for buffer overruns BB */ + } else { /* BB improve the check for buffer overruns BB */ name_len = strnlen(fileName, PATH_MAX); name_len++; /* trailing null */ strncpy(pSMB->FileName, fileName, name_len); @@ -5376,10 +5487,10 @@ SetEARetry: /* done calculating parms using name_len of file name, now use name_len to calculate length of ea name we are going to create in the inode xattrs */ - if(ea_name == NULL) + if (ea_name == NULL) name_len = 0; else - name_len = strnlen(ea_name,255); + name_len = strnlen(ea_name, 255); count = sizeof(*parm_data) + ea_value_len + name_len + 1; pSMB->MaxParameterCount = cpu_to_le16(2); @@ -5390,7 +5501,7 @@ SetEARetry: pSMB->Timeout = 0; pSMB->Reserved2 = 0; param_offset = offsetof(struct smb_com_transaction2_spi_req, - InformationLevel) - 4; + InformationLevel) - 4; offset = param_offset + params; pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_EA); @@ -5410,17 +5521,19 @@ SetEARetry: /* we checked above that name len is less than 255 */ parm_data->list[0].name_len = (__u8)name_len; /* EA names are always ASCII */ - if(ea_name) - strncpy(parm_data->list[0].name,ea_name,name_len); + if (ea_name) + strncpy(parm_data->list[0].name, ea_name, name_len); parm_data->list[0].name[name_len] = 0; parm_data->list[0].value_len = cpu_to_le16(ea_value_len); /* caller ensures that ea_value_len is less than 64K but we need to ensure that it fits within the smb */ - /*BB add length check that it would fit in negotiated SMB buffer size BB */ - /* if(ea_value_len > buffer_size - 512 (enough for header)) */ - if(ea_value_len) - memcpy(parm_data->list[0].name+name_len+1,ea_value,ea_value_len); + /*BB add length check to see if it would fit in + negotiated SMB buffer size BB */ + /* if (ea_value_len > buffer_size - 512 (enough for header)) */ + if (ea_value_len) + memcpy(parm_data->list[0].name+name_len+1, + ea_value, ea_value_len); pSMB->TotalDataCount = pSMB->DataCount; pSMB->ParameterCount = cpu_to_le16(params); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index f4e92661b223..4af3588c1a96 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1,7 +1,7 @@ /* * fs/cifs/connect.c * - * Copyright (C) International Business Machines Corp., 2002,2006 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/fs.h> #include <linux/net.h> @@ -85,6 +85,7 @@ struct smb_vol { unsigned direct_io:1; unsigned remap:1; /* set to remap seven reserved chars in filenames */ unsigned posix_paths:1; /* unset to not ask for posix pathnames. */ + unsigned no_linux_ext:1; unsigned sfu_emul:1; unsigned nullauth:1; /* attempt to authenticate with null user */ unsigned nocase; /* request case insensitive filenames */ @@ -93,20 +94,20 @@ struct smb_vol { unsigned int wsize; unsigned int sockopt; unsigned short int port; - char * prepath; + char *prepath; }; -static int ipv4_connect(struct sockaddr_in *psin_server, +static int ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, - char * netb_name, - char * server_netb_name); -static int ipv6_connect(struct sockaddr_in6 *psin_server, + char *netb_name, + char *server_netb_name); +static int ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket); - /* + /* * cifs tcp session reconnection - * + * * mark tcp session as reconnecting so temporarily locked * mark all smb sessions as reconnecting for tcp session * reconnect tcp session @@ -120,11 +121,11 @@ cifs_reconnect(struct TCP_Server_Info *server) struct list_head *tmp; struct cifsSesInfo *ses; struct cifsTconInfo *tcon; - struct mid_q_entry * mid_entry; - + struct mid_q_entry *mid_entry; + spin_lock(&GlobalMid_Lock); - if( kthread_should_stop() ) { - /* the demux thread will exit normally + if ( kthread_should_stop() ) { + /* the demux thread will exit normally next time through the loop */ spin_unlock(&GlobalMid_Lock); return rc; @@ -150,18 +151,19 @@ cifs_reconnect(struct TCP_Server_Info *server) } list_for_each(tmp, &GlobalTreeConnectionList) { tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); - if((tcon) && (tcon->ses) && (tcon->ses->server == server)) { + if ((tcon) && (tcon->ses) && (tcon->ses->server == server)) { tcon->tidStatus = CifsNeedReconnect; } } read_unlock(&GlobalSMBSeslock); /* do not want to be sending data on a socket we are freeing */ - down(&server->tcpSem); - if(server->ssocket) { - cFYI(1,("State: 0x%x Flags: 0x%lx", server->ssocket->state, + down(&server->tcpSem); + if (server->ssocket) { + cFYI(1, ("State: 0x%x Flags: 0x%lx", server->ssocket->state, server->ssocket->flags)); - server->ssocket->ops->shutdown(server->ssocket,SEND_SHUTDOWN); - cFYI(1,("Post shutdown state: 0x%x Flags: 0x%lx", server->ssocket->state, + server->ssocket->ops->shutdown(server->ssocket, SEND_SHUTDOWN); + cFYI(1, ("Post shutdown state: 0x%x Flags: 0x%lx", + server->ssocket->state, server->ssocket->flags)); sock_release(server->ssocket); server->ssocket = NULL; @@ -172,8 +174,8 @@ cifs_reconnect(struct TCP_Server_Info *server) mid_entry = list_entry(tmp, struct mid_q_entry, qhead); - if(mid_entry) { - if(mid_entry->midState == MID_REQUEST_SUBMITTED) { + if (mid_entry) { + if (mid_entry->midState == MID_REQUEST_SUBMITTED) { /* Mark other intransit requests as needing retry so we do not immediately mark the session bad again (ie after we reconnect @@ -183,29 +185,29 @@ cifs_reconnect(struct TCP_Server_Info *server) } } spin_unlock(&GlobalMid_Lock); - up(&server->tcpSem); + up(&server->tcpSem); - while ( (!kthread_should_stop()) && (server->tcpStatus != CifsGood)) - { + while ( (!kthread_should_stop()) && (server->tcpStatus != CifsGood)) { try_to_freeze(); - if(server->protocolType == IPV6) { - rc = ipv6_connect(&server->addr.sockAddr6,&server->ssocket); + if (server->protocolType == IPV6) { + rc = ipv6_connect(&server->addr.sockAddr6, + &server->ssocket); } else { - rc = ipv4_connect(&server->addr.sockAddr, + rc = ipv4_connect(&server->addr.sockAddr, &server->ssocket, server->workstation_RFC1001_name, server->server_RFC1001_name); } - if(rc) { - cFYI(1,("reconnect error %d",rc)); + if (rc) { + cFYI(1, ("reconnect error %d", rc)); msleep(3000); } else { atomic_inc(&tcpSesReconnectCount); spin_lock(&GlobalMid_Lock); - if( !kthread_should_stop() ) + if ( !kthread_should_stop() ) server->tcpStatus = CifsGood; server->sequence_number = 0; - spin_unlock(&GlobalMid_Lock); + spin_unlock(&GlobalMid_Lock); /* atomic_set(&server->inFlight,0);*/ wake_up(&server->response_q); } @@ -213,27 +215,27 @@ cifs_reconnect(struct TCP_Server_Info *server) return rc; } -/* +/* return codes: 0 not a transact2, or all data present >0 transact2 with that much data missing -EINVAL = invalid transact2 */ -static int check2ndT2(struct smb_hdr * pSMB, unsigned int maxBufSize) +static int check2ndT2(struct smb_hdr *pSMB, unsigned int maxBufSize) { - struct smb_t2_rsp * pSMBt; - int total_data_size; + struct smb_t2_rsp *pSMBt; + int total_data_size; int data_in_this_rsp; int remaining; - if(pSMB->Command != SMB_COM_TRANSACTION2) + if (pSMB->Command != SMB_COM_TRANSACTION2) return 0; - /* check for plausible wct, bcc and t2 data and parm sizes */ - /* check for parm and data offset going beyond end of smb */ - if(pSMB->WordCount != 10) { /* coalesce_t2 depends on this */ - cFYI(1,("invalid transact2 word count")); + /* check for plausible wct, bcc and t2 data and parm sizes */ + /* check for parm and data offset going beyond end of smb */ + if (pSMB->WordCount != 10) { /* coalesce_t2 depends on this */ + cFYI(1, ("invalid transact2 word count")); return -EINVAL; } @@ -244,25 +246,25 @@ static int check2ndT2(struct smb_hdr * pSMB, unsigned int maxBufSize) remaining = total_data_size - data_in_this_rsp; - if(remaining == 0) + if (remaining == 0) return 0; - else if(remaining < 0) { - cFYI(1,("total data %d smaller than data in frame %d", + else if (remaining < 0) { + cFYI(1, ("total data %d smaller than data in frame %d", total_data_size, data_in_this_rsp)); return -EINVAL; } else { - cFYI(1,("missing %d bytes from transact2, check next response", + cFYI(1, ("missing %d bytes from transact2, check next response", remaining)); - if(total_data_size > maxBufSize) { - cERROR(1,("TotalDataSize %d is over maximum buffer %d", - total_data_size,maxBufSize)); - return -EINVAL; + if (total_data_size > maxBufSize) { + cERROR(1, ("TotalDataSize %d is over maximum buffer %d", + total_data_size, maxBufSize)); + return -EINVAL; } return remaining; } } -static int coalesce_t2(struct smb_hdr * psecond, struct smb_hdr *pTargetSMB) +static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB) { struct smb_t2_rsp *pSMB2 = (struct smb_t2_rsp *)psecond; struct smb_t2_rsp *pSMBt = (struct smb_t2_rsp *)pTargetSMB; @@ -270,43 +272,43 @@ static int coalesce_t2(struct smb_hdr * psecond, struct smb_hdr *pTargetSMB) int total_in_buf; int remaining; int total_in_buf2; - char * data_area_of_target; - char * data_area_of_buf2; + char *data_area_of_target; + char *data_area_of_buf2; __u16 byte_count; total_data_size = le16_to_cpu(pSMBt->t2_rsp.TotalDataCount); - if(total_data_size != le16_to_cpu(pSMB2->t2_rsp.TotalDataCount)) { - cFYI(1,("total data sizes of primary and secondary t2 differ")); + if (total_data_size != le16_to_cpu(pSMB2->t2_rsp.TotalDataCount)) { + cFYI(1, ("total data size of primary and secondary t2 differ")); } total_in_buf = le16_to_cpu(pSMBt->t2_rsp.DataCount); remaining = total_data_size - total_in_buf; - - if(remaining < 0) + + if (remaining < 0) return -EINVAL; - if(remaining == 0) /* nothing to do, ignore */ + if (remaining == 0) /* nothing to do, ignore */ return 0; - + total_in_buf2 = le16_to_cpu(pSMB2->t2_rsp.DataCount); - if(remaining < total_in_buf2) { - cFYI(1,("transact2 2nd response contains too much data")); + if (remaining < total_in_buf2) { + cFYI(1, ("transact2 2nd response contains too much data")); } /* find end of first SMB data area */ - data_area_of_target = (char *)&pSMBt->hdr.Protocol + + data_area_of_target = (char *)&pSMBt->hdr.Protocol + le16_to_cpu(pSMBt->t2_rsp.DataOffset); /* validate target area */ data_area_of_buf2 = (char *) &pSMB2->hdr.Protocol + - le16_to_cpu(pSMB2->t2_rsp.DataOffset); + le16_to_cpu(pSMB2->t2_rsp.DataOffset); data_area_of_target += total_in_buf; /* copy second buffer into end of first buffer */ - memcpy(data_area_of_target,data_area_of_buf2,total_in_buf2); + memcpy(data_area_of_target, data_area_of_buf2, total_in_buf2); total_in_buf += total_in_buf2; pSMBt->t2_rsp.DataCount = cpu_to_le16(total_in_buf); byte_count = le16_to_cpu(BCC_LE(pTargetSMB)); @@ -317,11 +319,11 @@ static int coalesce_t2(struct smb_hdr * psecond, struct smb_hdr *pTargetSMB) byte_count += total_in_buf2; /* BB also add check that we are not beyond maximum buffer size */ - + pTargetSMB->smb_buf_length = byte_count; - if(remaining == total_in_buf2) { - cFYI(1,("found the last secondary response")); + if (remaining == total_in_buf2) { + cFYI(1, ("found the last secondary response")); return 0; /* we are done */ } else /* more responses to go */ return 1; @@ -348,21 +350,21 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) int isMultiRsp; int reconnect; - allow_signal(SIGKILL); current->flags |= PF_MEMALLOC; server->tsk = current; /* save process info to wake at shutdown */ cFYI(1, ("Demultiplex PID: %d", current->pid)); - write_lock(&GlobalSMBSeslock); + write_lock(&GlobalSMBSeslock); atomic_inc(&tcpSesAllocCount); length = tcpSesAllocCount.counter; write_unlock(&GlobalSMBSeslock); complete(&cifsd_complete); - if(length > 1) { + if (length > 1) { mempool_resize(cifs_req_poolp, length + cifs_min_rcv, GFP_KERNEL); } + set_freezable(); while (!kthread_should_stop()) { if (try_to_freeze()) continue; @@ -425,10 +427,10 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) break; } if (!try_to_freeze() && (length == -EINTR)) { - cFYI(1,("cifsd thread killed")); + cFYI(1, ("cifsd thread killed")); break; } - cFYI(1,("Reconnect after unexpected peek error %d", + cFYI(1, ("Reconnect after unexpected peek error %d", length)); cifs_reconnect(server); csocket = server->ssocket; @@ -452,26 +454,26 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) with the most common, zero, as regular data */ temp = *((char *) smb_buffer); - /* Note that FC 1001 length is big endian on the wire, + /* Note that FC 1001 length is big endian on the wire, but we convert it here so it is always manipulated as host byte order */ pdu_length = ntohl(smb_buffer->smb_buf_length); smb_buffer->smb_buf_length = pdu_length; - cFYI(1,("rfc1002 length 0x%x)", pdu_length+4)); + cFYI(1, ("rfc1002 length 0x%x", pdu_length+4)); if (temp == (char) RFC1002_SESSION_KEEP_ALIVE) { - continue; + continue; } else if (temp == (char)RFC1002_POSITIVE_SESSION_RESPONSE) { - cFYI(1,("Good RFC 1002 session rsp")); + cFYI(1, ("Good RFC 1002 session rsp")); continue; } else if (temp == (char)RFC1002_NEGATIVE_SESSION_RESPONSE) { - /* we get this from Windows 98 instead of + /* we get this from Windows 98 instead of an error on SMB negprot response */ - cFYI(1,("Negative RFC1002 Session Response Error 0x%x)", + cFYI(1, ("Negative RFC1002 Session Response Error 0x%x)", pdu_length)); - if(server->tcpStatus == CifsNew) { - /* if nack on negprot (rather than + if (server->tcpStatus == CifsNew) { + /* if nack on negprot (rather than ret of smb negprot error) reconnecting not going to help, ret error to mount */ break; @@ -481,10 +483,10 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) msleep(1000); /* always try 445 first on reconnect since we get NACK on some if we ever - connected to port 139 (the NACK is + connected to port 139 (the NACK is since we do not begin with RFC1001 session initialize frame) */ - server->addr.sockAddr.sin_port = + server->addr.sockAddr.sin_port = htons(CIFS_PORT); cifs_reconnect(server); csocket = server->ssocket; @@ -492,7 +494,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) continue; } } else if (temp != (char) 0) { - cERROR(1,("Unknown RFC 1002 frame")); + cERROR(1, ("Unknown RFC 1002 frame")); cifs_dump_mem(" Received Data: ", (char *)smb_buffer, length); cifs_reconnect(server); @@ -501,7 +503,7 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) } /* else we have an SMB response */ - if((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) || + if ((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) || (pdu_length < sizeof (struct smb_hdr) - 1 - 4)) { cERROR(1, ("Invalid size SMB length %d pdu_length %d", length, pdu_length+4)); @@ -509,12 +511,12 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) csocket = server->ssocket; wake_up(&server->response_q); continue; - } + } /* else length ok */ reconnect = 0; - if(pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) { + if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) { isLargeBuf = TRUE; memcpy(bigbuf, smallbuf, 4); smb_buffer = bigbuf; @@ -522,11 +524,11 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) length = 0; iov.iov_base = 4 + (char *)smb_buffer; iov.iov_len = pdu_length; - for (total_read = 0; total_read < pdu_length; + for (total_read = 0; total_read < pdu_length; total_read += length) { length = kernel_recvmsg(csocket, &smb_msg, &iov, 1, pdu_length - total_read, 0); - if( kthread_should_stop() || + if ( kthread_should_stop() || (length == -EINTR)) { /* then will exit */ reconnect = 2; @@ -534,19 +536,19 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) } else if (server->tcpStatus == CifsNeedReconnect) { cifs_reconnect(server); csocket = server->ssocket; - /* Reconnect wakes up rspns q */ + /* Reconnect wakes up rspns q */ /* Now we will reread sock */ reconnect = 1; break; - } else if ((length == -ERESTARTSYS) || + } else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) { msleep(1); /* minimum sleep to prevent looping, - allowing socket to clear and app + allowing socket to clear and app threads to set tcpStatus CifsNeedReconnect if server hung*/ continue; } else if (length <= 0) { - cERROR(1,("Received no data, expecting %d", + cERROR(1, ("Received no data, expecting %d", pdu_length - total_read)); cifs_reconnect(server); csocket = server->ssocket; @@ -554,13 +556,13 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) break; } } - if(reconnect == 2) + if (reconnect == 2) break; - else if(reconnect == 1) + else if (reconnect == 1) continue; length += 4; /* account for rfc1002 hdr */ - + dump_smb(smb_buffer, length); if (checkSMB(smb_buffer, smb_buffer->Mid, total_read+4)) { @@ -574,28 +576,28 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) list_for_each(tmp, &server->pending_mid_q) { mid_entry = list_entry(tmp, struct mid_q_entry, qhead); - if ((mid_entry->mid == smb_buffer->Mid) && + if ((mid_entry->mid == smb_buffer->Mid) && (mid_entry->midState == MID_REQUEST_SUBMITTED) && (mid_entry->command == smb_buffer->Command)) { - if(check2ndT2(smb_buffer,server->maxBuf) > 0) { + if (check2ndT2(smb_buffer,server->maxBuf) > 0) { /* We have a multipart transact2 resp */ isMultiRsp = TRUE; - if(mid_entry->resp_buf) { + if (mid_entry->resp_buf) { /* merge response - fix up 1st*/ - if(coalesce_t2(smb_buffer, + if (coalesce_t2(smb_buffer, mid_entry->resp_buf)) { mid_entry->multiRsp = 1; break; } else { /* all parts received */ mid_entry->multiEnd = 1; - goto multi_t2_fnd; + goto multi_t2_fnd; } } else { - if(!isLargeBuf) { + if (!isLargeBuf) { cERROR(1,("1st trans2 resp needs bigbuf")); /* BB maybe we can fix this up, switch - to already allocated large buffer? */ + to already allocated large buffer? */ } else { /* Have first buffer */ mid_entry->resp_buf = @@ -605,9 +607,9 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) } } break; - } + } mid_entry->resp_buf = smb_buffer; - if(isLargeBuf) + if (isLargeBuf) mid_entry->largeBuf = 1; else mid_entry->largeBuf = 0; @@ -627,24 +629,25 @@ multi_t2_fnd: spin_unlock(&GlobalMid_Lock); if (task_to_wake) { /* Was previous buf put in mpx struct for multi-rsp? */ - if(!isMultiRsp) { + if (!isMultiRsp) { /* smb buffer will be freed by user thread */ - if(isLargeBuf) { + if (isLargeBuf) { bigbuf = NULL; } else smallbuf = NULL; } wake_up_process(task_to_wake); } else if ((is_valid_oplock_break(smb_buffer, server) == FALSE) - && (isMultiRsp == FALSE)) { - cERROR(1, ("No task to wake, unknown frame rcvd! NumMids %d", midCount.counter)); - cifs_dump_mem("Received Data is: ",(char *)smb_buffer, + && (isMultiRsp == FALSE)) { + cERROR(1, ("No task to wake, unknown frame received! " + "NumMids %d", midCount.counter)); + cifs_dump_mem("Received Data is: ", (char *)smb_buffer, sizeof(struct smb_hdr)); #ifdef CONFIG_CIFS_DEBUG2 cifs_dump_detail(smb_buffer); cifs_dump_mids(server); #endif /* CIFS_DEBUG2 */ - + } } /* end while !EXITING */ @@ -654,12 +657,12 @@ multi_t2_fnd: /* check if we have blocked requests that need to free */ /* Note that cifs_max_pending is normally 50, but can be set at module install time to as little as two */ - if(atomic_read(&server->inFlight) >= cifs_max_pending) + if (atomic_read(&server->inFlight) >= cifs_max_pending) atomic_set(&server->inFlight, cifs_max_pending - 1); /* We do not want to set the max_pending too low or we could end up with the counter going negative */ spin_unlock(&GlobalMid_Lock); - /* Although there should not be any requests blocked on + /* Although there should not be any requests blocked on this queue it can not hurt to be paranoid and try to wake up requests that may haven been blocked when more than 50 at time were on the wire to the same server - they now will see the session is in exit state @@ -667,8 +670,8 @@ multi_t2_fnd: wake_up_all(&server->request_q); /* give those requests time to exit */ msleep(125); - - if(server->ssocket) { + + if (server->ssocket) { sock_release(csocket); server->ssocket = NULL; } @@ -708,10 +711,10 @@ multi_t2_fnd: list_for_each(tmp, &server->pending_mid_q) { mid_entry = list_entry(tmp, struct mid_q_entry, qhead); if (mid_entry->midState == MID_REQUEST_SUBMITTED) { - cFYI(1, - ("Clearing Mid 0x%x - waking up ",mid_entry->mid)); + cFYI(1, ("Clearing Mid 0x%x - waking up ", + mid_entry->mid)); task_to_wake = mid_entry->tsk; - if(task_to_wake) { + if (task_to_wake) { wake_up_process(task_to_wake); } } @@ -723,7 +726,7 @@ multi_t2_fnd: } if (!list_empty(&server->pending_mid_q)) { - /* mpx threads have not exited yet give them + /* mpx threads have not exited yet give them at least the smb send timeout time for long ops */ /* due to delays on oplock break requests, we need to wait at least 45 seconds before giving up @@ -741,7 +744,7 @@ multi_t2_fnd: /* last chance to mark ses pointers invalid if there are any pointing to this (e.g - if a crazy root user tried to kill cifsd + if a crazy root user tried to kill cifsd kernel thread explicitly this might happen) */ list_for_each(tmp, &GlobalSMBSessionList) { ses = list_entry(tmp, struct cifsSesInfo, @@ -753,17 +756,18 @@ multi_t2_fnd: write_unlock(&GlobalSMBSeslock); kfree(server); - if(length > 0) { + if (length > 0) { mempool_resize(cifs_req_poolp, length + cifs_min_rcv, GFP_KERNEL); } - + return 0; } static int -cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) +cifs_parse_mount_options(char *options, const char *devname, + struct smb_vol *vol) { char *value; char *data; @@ -771,15 +775,15 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) char separator[2]; separator[0] = ','; - separator[1] = 0; + separator[1] = 0; if (Local_System_Name[0] != 0) - memcpy(vol->source_rfc1001_name, Local_System_Name,15); + memcpy(vol->source_rfc1001_name, Local_System_Name, 15); else { char *nodename = utsname()->nodename; - int n = strnlen(nodename,15); - memset(vol->source_rfc1001_name,0x20,15); - for(i=0 ; i < n ; i++) { + int n = strnlen(nodename, 15); + memset(vol->source_rfc1001_name, 0x20, 15); + for (i = 0; i < n; i++) { /* does not have to be perfect mapping since field is informational, only used for servers that do not support port 445 and it can be overridden at mount time */ @@ -804,31 +808,32 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) if (!options) return 1; - if(strncmp(options,"sep=",4) == 0) { - if(options[4] != 0) { + if (strncmp(options, "sep=", 4) == 0) { + if (options[4] != 0) { separator[0] = options[4]; options += 5; } else { - cFYI(1,("Null separator not allowed")); + cFYI(1, ("Null separator not allowed")); } } - + while ((data = strsep(&options, separator)) != NULL) { if (!*data) continue; if ((value = strchr(data, '=')) != NULL) *value++ = '\0'; - if (strnicmp(data, "user_xattr",10) == 0) {/*parse before user*/ + /* Have to parse this before we parse for "user" */ + if (strnicmp(data, "user_xattr", 10) == 0) { vol->no_xattr = 0; - } else if (strnicmp(data, "nouser_xattr",12) == 0) { + } else if (strnicmp(data, "nouser_xattr", 12) == 0) { vol->no_xattr = 1; } else if (strnicmp(data, "user", 4) == 0) { if (!value) { printk(KERN_WARNING "CIFS: invalid or missing username\n"); return 1; /* needs_arg; */ - } else if(!*value) { + } else if (!*value) { /* null user, ie anonymous, authentication */ vol->nullauth = 1; } @@ -842,12 +847,12 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) if (!value) { vol->password = NULL; continue; - } else if(value[0] == 0) { + } else if (value[0] == 0) { /* check if string begins with double comma since that would mean the password really does start with a comma, and would not indicate an empty string */ - if(value[1] != separator[0]) { + if (value[1] != separator[0]) { vol->password = NULL; continue; } @@ -856,7 +861,7 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) /* removed password length check, NTLM passwords can be arbitrarily long */ - /* if comma in password, the string will be + /* if comma in password, the string will be prematurely null terminated. Commas in password are specified across the cifs mount interface by a double comma ie ,, and a comma used as in other cases ie ',' @@ -866,18 +871,18 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) /* NB: password legally can have multiple commas and the only illegal character in a password is null */ - if ((value[temp_len] == 0) && + if ((value[temp_len] == 0) && (value[temp_len+1] == separator[0])) { /* reinsert comma */ value[temp_len] = separator[0]; - temp_len+=2; /* move after the second comma */ - while(value[temp_len] != 0) { + temp_len += 2; /* move after second comma */ + while (value[temp_len] != 0) { if (value[temp_len] == separator[0]) { - if (value[temp_len+1] == + if (value[temp_len+1] == separator[0]) { /* skip second comma */ temp_len++; - } else { + } else { /* single comma indicating start of next parm */ break; @@ -885,24 +890,25 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) } temp_len++; } - if(value[temp_len] == 0) { + if (value[temp_len] == 0) { options = NULL; } else { value[temp_len] = 0; /* point option to start of next parm */ options = value + temp_len + 1; } - /* go from value to value + temp_len condensing + /* go from value to value + temp_len condensing double commas to singles. Note that this ends up allocating a few bytes too many, which is ok */ vol->password = kzalloc(temp_len, GFP_KERNEL); - if(vol->password == NULL) { - printk("CIFS: no memory for pass\n"); + if (vol->password == NULL) { + printk(KERN_WARNING "CIFS: no memory " + "for password\n"); return 1; } - for(i=0,j=0;i<temp_len;i++,j++) { + for (i = 0, j = 0; i < temp_len; i++, j++) { vol->password[j] = value[i]; - if(value[i] == separator[0] + if (value[i] == separator[0] && value[i+1] == separator[0]) { /* skip second comma */ i++; @@ -911,8 +917,9 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->password[j] = 0; } else { vol->password = kzalloc(temp_len+1, GFP_KERNEL); - if(vol->password == NULL) { - printk("CIFS: no memory for pass\n"); + if (vol->password == NULL) { + printk(KERN_WARNING "CIFS: no memory " + "for password\n"); return 1; } strcpy(vol->password, value); @@ -923,20 +930,21 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) } else if (strnlen(value, 35) < 35) { vol->UNCip = value; } else { - printk(KERN_WARNING "CIFS: ip address too long\n"); + printk(KERN_WARNING "CIFS: ip address " + "too long\n"); return 1; } - } else if (strnicmp(data, "sec", 3) == 0) { - if (!value || !*value) { - cERROR(1,("no security value specified")); - continue; - } else if (strnicmp(value, "krb5i", 5) == 0) { - vol->secFlg |= CIFSSEC_MAY_KRB5 | + } else if (strnicmp(data, "sec", 3) == 0) { + if (!value || !*value) { + cERROR(1, ("no security value specified")); + continue; + } else if (strnicmp(value, "krb5i", 5) == 0) { + vol->secFlg |= CIFSSEC_MAY_KRB5 | CIFSSEC_MUST_SIGN; } else if (strnicmp(value, "krb5p", 5) == 0) { - /* vol->secFlg |= CIFSSEC_MUST_SEAL | - CIFSSEC_MAY_KRB5; */ - cERROR(1,("Krb5 cifs privacy not supported")); + /* vol->secFlg |= CIFSSEC_MUST_SEAL | + CIFSSEC_MAY_KRB5; */ + cERROR(1, ("Krb5 cifs privacy not supported")); return 1; } else if (strnicmp(value, "krb5", 4) == 0) { vol->secFlg |= CIFSSEC_MAY_KRB5; @@ -956,33 +964,34 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->secFlg |= CIFSSEC_MAY_NTLMV2; #ifdef CONFIG_CIFS_WEAK_PW_HASH } else if (strnicmp(value, "lanman", 6) == 0) { - vol->secFlg |= CIFSSEC_MAY_LANMAN; + vol->secFlg |= CIFSSEC_MAY_LANMAN; #endif } else if (strnicmp(value, "none", 4) == 0) { vol->nullauth = 1; - } else { - cERROR(1,("bad security option: %s", value)); - return 1; - } + } else { + cERROR(1, ("bad security option: %s", value)); + return 1; + } } else if ((strnicmp(data, "unc", 3) == 0) || (strnicmp(data, "target", 6) == 0) || (strnicmp(data, "path", 4) == 0)) { if (!value || !*value) { - printk(KERN_WARNING - "CIFS: invalid path to network resource\n"); + printk(KERN_WARNING "CIFS: invalid path to " + "network resource\n"); return 1; /* needs_arg; */ } if ((temp_len = strnlen(value, 300)) < 300) { - vol->UNC = kmalloc(temp_len+1,GFP_KERNEL); + vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); if (vol->UNC == NULL) return 1; - strcpy(vol->UNC,value); + strcpy(vol->UNC, value); if (strncmp(vol->UNC, "//", 2) == 0) { vol->UNC[0] = '\\'; vol->UNC[1] = '\\'; - } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { + } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { printk(KERN_WARNING - "CIFS: UNC Path does not begin with // or \\\\ \n"); + "CIFS: UNC Path does not begin " + "with // or \\\\ \n"); return 1; } } else { @@ -1001,43 +1010,47 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->domainname = value; cFYI(1, ("Domain name set")); } else { - printk(KERN_WARNING "CIFS: domain name too long\n"); + printk(KERN_WARNING "CIFS: domain name too " + "long\n"); return 1; } - } else if (strnicmp(data, "prefixpath", 10) == 0) { - if (!value || !*value) { - printk(KERN_WARNING - "CIFS: invalid path prefix\n"); - return 1; /* needs_arg; */ - } - if ((temp_len = strnlen(value, 1024)) < 1024) { + } else if (strnicmp(data, "prefixpath", 10) == 0) { + if (!value || !*value) { + printk(KERN_WARNING + "CIFS: invalid path prefix\n"); + return 1; /* needs_argument */ + } + if ((temp_len = strnlen(value, 1024)) < 1024) { if (value[0] != '/') temp_len++; /* missing leading slash */ - vol->prepath = kmalloc(temp_len+1,GFP_KERNEL); - if (vol->prepath == NULL) - return 1; + vol->prepath = kmalloc(temp_len+1, GFP_KERNEL); + if (vol->prepath == NULL) + return 1; if (value[0] != '/') { vol->prepath[0] = '/'; - strcpy(vol->prepath+1,value); + strcpy(vol->prepath+1, value); } else - strcpy(vol->prepath,value); - cFYI(1,("prefix path %s",vol->prepath)); - } else { - printk(KERN_WARNING "CIFS: prefix too long\n"); - return 1; - } + strcpy(vol->prepath, value); + cFYI(1, ("prefix path %s", vol->prepath)); + } else { + printk(KERN_WARNING "CIFS: prefix too long\n"); + return 1; + } } else if (strnicmp(data, "iocharset", 9) == 0) { if (!value || !*value) { - printk(KERN_WARNING "CIFS: invalid iocharset specified\n"); + printk(KERN_WARNING "CIFS: invalid iocharset " + "specified\n"); return 1; /* needs_arg; */ } if (strnlen(value, 65) < 65) { - if (strnicmp(value,"default",7)) + if (strnicmp(value, "default", 7)) vol->iocharset = value; - /* if iocharset not set load_nls_default used by caller */ - cFYI(1, ("iocharset set to %s",value)); + /* if iocharset not set then load_nls_default + is used by caller */ + cFYI(1, ("iocharset set to %s", value)); } else { - printk(KERN_WARNING "CIFS: iocharset name too long.\n"); + printk(KERN_WARNING "CIFS: iocharset name " + "too long.\n"); return 1; } } else if (strnicmp(data, "uid", 3) == 0) { @@ -1089,54 +1102,59 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) } } else if (strnicmp(data, "netbiosname", 4) == 0) { if (!value || !*value || (*value == ' ')) { - cFYI(1,("invalid (empty) netbiosname specified")); + cFYI(1, ("invalid (empty) netbiosname")); } else { - memset(vol->source_rfc1001_name,0x20,15); - for(i=0;i<15;i++) { - /* BB are there cases in which a comma can be + memset(vol->source_rfc1001_name, 0x20, 15); + for (i = 0; i < 15; i++) { + /* BB are there cases in which a comma can be valid in this workstation netbios name (and need special handling)? */ /* We do not uppercase netbiosname for user */ - if (value[i]==0) + if (value[i] == 0) break; - else - vol->source_rfc1001_name[i] = value[i]; + else + vol->source_rfc1001_name[i] = + value[i]; } /* The string has 16th byte zero still from set at top of the function */ - if ((i==15) && (value[i] != 0)) - printk(KERN_WARNING "CIFS: netbiosname longer than 15 truncated.\n"); + if ((i == 15) && (value[i] != 0)) + printk(KERN_WARNING "CIFS: netbiosname" + " longer than 15 truncated.\n"); } } else if (strnicmp(data, "servern", 7) == 0) { /* servernetbiosname specified override *SMBSERVER */ if (!value || !*value || (*value == ' ')) { - cFYI(1,("empty server netbiosname specified")); + cFYI(1, ("empty server netbiosname specified")); } else { /* last byte, type, is 0x20 for servr type */ - memset(vol->target_rfc1001_name,0x20,16); + memset(vol->target_rfc1001_name, 0x20, 16); - for(i=0;i<15;i++) { + for (i = 0; i < 15; i++) { /* BB are there cases in which a comma can be - valid in this workstation netbios name (and need - special handling)? */ + valid in this workstation netbios name + (and need special handling)? */ - /* user or mount helper must uppercase netbiosname */ - if (value[i]==0) + /* user or mount helper must uppercase + the netbiosname */ + if (value[i] == 0) break; else - vol->target_rfc1001_name[i] = value[i]; + vol->target_rfc1001_name[i] = + value[i]; } /* The string has 16th byte zero still from set at top of the function */ - if ((i==15) && (value[i] != 0)) - printk(KERN_WARNING "CIFS: server netbiosname longer than 15 truncated.\n"); + if ((i == 15) && (value[i] != 0)) + printk(KERN_WARNING "CIFS: server net" + "biosname longer than 15 truncated.\n"); } } else if (strnicmp(data, "credentials", 4) == 0) { /* ignore */ } else if (strnicmp(data, "version", 3) == 0) { /* ignore */ - } else if (strnicmp(data, "guest",5) == 0) { + } else if (strnicmp(data, "guest", 5) == 0) { /* ignore */ } else if (strnicmp(data, "rw", 2) == 0) { vol->rw = TRUE; @@ -1148,11 +1166,11 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) (strnicmp(data, "noauto", 6) == 0) || (strnicmp(data, "dev", 3) == 0)) { /* The mount tool or mount.cifs helper (if present) - uses these opts to set flags, and the flags are read - by the kernel vfs layer before we get here (ie - before read super) so there is no point trying to - parse these options again and set anything and it - is ok to just ignore them */ + uses these opts to set flags, and the flags are read + by the kernel vfs layer before we get here (ie + before read super) so there is no point trying to + parse these options again and set anything and it + is ok to just ignore them */ continue; } else if (strnicmp(data, "ro", 2) == 0) { vol->rw = FALSE; @@ -1168,26 +1186,31 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->remap = 1; } else if (strnicmp(data, "nomapchars", 10) == 0) { vol->remap = 0; - } else if (strnicmp(data, "sfu", 3) == 0) { - vol->sfu_emul = 1; - } else if (strnicmp(data, "nosfu", 5) == 0) { - vol->sfu_emul = 0; + } else if (strnicmp(data, "sfu", 3) == 0) { + vol->sfu_emul = 1; + } else if (strnicmp(data, "nosfu", 5) == 0) { + vol->sfu_emul = 0; } else if (strnicmp(data, "posixpaths", 10) == 0) { vol->posix_paths = 1; } else if (strnicmp(data, "noposixpaths", 12) == 0) { vol->posix_paths = 0; - } else if ((strnicmp(data, "nocase", 6) == 0) || + } else if (strnicmp(data, "nounix", 6) == 0) { + vol->no_linux_ext = 1; + } else if (strnicmp(data, "nolinux", 7) == 0) { + vol->no_linux_ext = 1; + } else if ((strnicmp(data, "nocase", 6) == 0) || (strnicmp(data, "ignorecase", 10) == 0)) { - vol->nocase = 1; + vol->nocase = 1; } else if (strnicmp(data, "brl", 3) == 0) { vol->nobrl = 0; - } else if ((strnicmp(data, "nobrl", 5) == 0) || + } else if ((strnicmp(data, "nobrl", 5) == 0) || (strnicmp(data, "nolock", 6) == 0)) { vol->nobrl = 1; /* turn off mandatory locking in mode if remote locking is turned off since the local vfs will do advisory */ - if(vol->file_mode == (S_IALLUGO & ~(S_ISUID | S_IXGRP))) + if (vol->file_mode == + (S_IALLUGO & ~(S_ISUID | S_IXGRP))) vol->file_mode = S_IALLUGO; } else if (strnicmp(data, "setuids", 7) == 0) { vol->setuids = 1; @@ -1201,55 +1224,61 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) vol->intr = 0; } else if (strnicmp(data, "intr", 4) == 0) { vol->intr = 1; - } else if (strnicmp(data, "serverino",7) == 0) { + } else if (strnicmp(data, "serverino", 7) == 0) { vol->server_ino = 1; - } else if (strnicmp(data, "noserverino",9) == 0) { + } else if (strnicmp(data, "noserverino", 9) == 0) { vol->server_ino = 0; - } else if (strnicmp(data, "cifsacl",7) == 0) { + } else if (strnicmp(data, "cifsacl", 7) == 0) { vol->cifs_acl = 1; } else if (strnicmp(data, "nocifsacl", 9) == 0) { vol->cifs_acl = 0; - } else if (strnicmp(data, "acl",3) == 0) { + } else if (strnicmp(data, "acl", 3) == 0) { vol->no_psx_acl = 0; - } else if (strnicmp(data, "noacl",5) == 0) { + } else if (strnicmp(data, "noacl", 5) == 0) { vol->no_psx_acl = 1; - } else if (strnicmp(data, "sign",4) == 0) { + } else if (strnicmp(data, "sign", 4) == 0) { vol->secFlg |= CIFSSEC_MUST_SIGN; /* } else if (strnicmp(data, "seal",4) == 0) { vol->secFlg |= CIFSSEC_MUST_SEAL; */ - } else if (strnicmp(data, "direct",6) == 0) { + } else if (strnicmp(data, "direct", 6) == 0) { vol->direct_io = 1; - } else if (strnicmp(data, "forcedirectio",13) == 0) { + } else if (strnicmp(data, "forcedirectio", 13) == 0) { vol->direct_io = 1; - } else if (strnicmp(data, "in6_addr",8) == 0) { + } else if (strnicmp(data, "in6_addr", 8) == 0) { if (!value || !*value) { vol->in6_addr = NULL; } else if (strnlen(value, 49) == 48) { vol->in6_addr = value; } else { - printk(KERN_WARNING "CIFS: ip v6 address not 48 characters long\n"); + printk(KERN_WARNING "CIFS: ip v6 address not " + "48 characters long\n"); return 1; } } else if (strnicmp(data, "noac", 4) == 0) { - printk(KERN_WARNING "CIFS: Mount option noac not supported. Instead set /proc/fs/cifs/LookupCacheEnabled to 0\n"); + printk(KERN_WARNING "CIFS: Mount option noac not " + "supported. Instead set " + "/proc/fs/cifs/LookupCacheEnabled to 0\n"); } else - printk(KERN_WARNING "CIFS: Unknown mount option %s\n",data); + printk(KERN_WARNING "CIFS: Unknown mount option %s\n", + data); } if (vol->UNC == NULL) { if (devname == NULL) { - printk(KERN_WARNING "CIFS: Missing UNC name for mount target\n"); + printk(KERN_WARNING "CIFS: Missing UNC name for mount " + "target\n"); return 1; } if ((temp_len = strnlen(devname, 300)) < 300) { - vol->UNC = kmalloc(temp_len+1,GFP_KERNEL); + vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); if (vol->UNC == NULL) return 1; - strcpy(vol->UNC,devname); + strcpy(vol->UNC, devname); if (strncmp(vol->UNC, "//", 2) == 0) { vol->UNC[0] = '\\'; vol->UNC[1] = '\\'; } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { - printk(KERN_WARNING "CIFS: UNC Path does not begin with // or \\\\ \n"); + printk(KERN_WARNING "CIFS: UNC Path does not " + "begin with // or \\\\ \n"); return 1; } } else { @@ -1257,14 +1286,14 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) return 1; } } - if(vol->UNCip == NULL) + if (vol->UNCip == NULL) vol->UNCip = &vol->UNC[2]; return 0; } static struct cifsSesInfo * -cifs_find_tcp_session(struct in_addr * target_ip_addr, +cifs_find_tcp_session(struct in_addr *target_ip_addr, struct in6_addr *target_ip6_addr, char *userName, struct TCP_Server_Info **psrvTcp) { @@ -1276,19 +1305,25 @@ cifs_find_tcp_session(struct in_addr * target_ip_addr, list_for_each(tmp, &GlobalSMBSessionList) { ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); if (ses->server) { - if((target_ip_addr && + if ((target_ip_addr && (ses->server->addr.sockAddr.sin_addr.s_addr == target_ip_addr->s_addr)) || (target_ip6_addr && memcmp(&ses->server->addr.sockAddr6.sin6_addr, - target_ip6_addr,sizeof(*target_ip6_addr)))){ - /* BB lock server and tcp session and increment use count here?? */ - *psrvTcp = ses->server; /* found a match on the TCP session */ + target_ip6_addr, sizeof(*target_ip6_addr)))) { + /* BB lock server and tcp session and increment + use count here?? */ + + /* found a match on the TCP session */ + *psrvTcp = ses->server; + /* BB check if reconnection needed */ if (strncmp (ses->userName, userName, MAX_USERNAME_SIZE) == 0){ read_unlock(&GlobalSMBSeslock); - return ses; /* found exact match on both tcp and SMB sessions */ + /* Found exact match on both TCP and + SMB sessions */ + return ses; } } } @@ -1319,7 +1354,8 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName) /* BB lock tcon, server and tcp session and increment use count here? */ /* found a match on the TCP session */ /* BB check if reconnection needed */ - cFYI(1,("IP match, old UNC: %s new: %s", + cFYI(1, + ("IP match, old UNC: %s new: %s", tcon->treeName, uncName)); if (strncmp (tcon->treeName, uncName, @@ -1354,11 +1390,11 @@ connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, unsigned int num_referrals; int rc = 0; - rc = get_dfs_path(xid, pSesInfo,old_path, nls_codepage, + rc = get_dfs_path(xid, pSesInfo, old_path, nls_codepage, &num_referrals, &referrals, remap); /* BB Add in code to: if valid refrl, if not ip address contact - the helper that resolves tcp names, mount to it, try to + the helper that resolves tcp names, mount to it, try to tcon to it unmount it if fail */ kfree(referrals); @@ -1367,10 +1403,9 @@ connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, } int -get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, - const char *old_path, const struct nls_table *nls_codepage, - unsigned int *pnum_referrals, - unsigned char ** preferrals, int remap) +get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, + const struct nls_table *nls_codepage, unsigned int *pnum_referrals, + unsigned char **preferrals, int remap) { char *temp_unc; int rc = 0; @@ -1379,7 +1414,8 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, if (pSesInfo->ipc_tid == 0) { temp_unc = kmalloc(2 /* for slashes */ + - strnlen(pSesInfo->serverName,SERVER_NAME_LEN_WITH_NULL * 2) + strnlen(pSesInfo->serverName, + SERVER_NAME_LEN_WITH_NULL * 2) + 1 + 4 /* slash IPC$ */ + 2, GFP_KERNEL); if (temp_unc == NULL) @@ -1390,7 +1426,7 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, strcpy(temp_unc + 2 + strlen(pSesInfo->serverName), "\\IPC$"); rc = CIFSTCon(xid, pSesInfo, temp_unc, NULL, nls_codepage); cFYI(1, - ("CIFS Tcon rc = %d ipc_tid = %d", rc,pSesInfo->ipc_tid)); + ("CIFS Tcon rc = %d ipc_tid = %d", rc, pSesInfo->ipc_tid)); kfree(temp_unc); } if (rc == 0) @@ -1401,62 +1437,63 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, } /* See RFC1001 section 14 on representation of Netbios names */ -static void rfc1002mangle(char * target,char * source, unsigned int length) +static void rfc1002mangle(char *target, char *source, unsigned int length) { - unsigned int i,j; + unsigned int i, j; - for(i=0,j=0;i<(length);i++) { + for (i = 0, j = 0; i < (length); i++) { /* mask a nibble at a time and encode */ target[j] = 'A' + (0x0F & (source[i] >> 4)); target[j+1] = 'A' + (0x0F & source[i]); - j+=2; + j += 2; } } static int -ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, - char * netbios_name, char * target_name) +ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, + char *netbios_name, char *target_name) { int rc = 0; int connected = 0; __be16 orig_port = 0; - if(*csocket == NULL) { - rc = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, csocket); + if (*csocket == NULL) { + rc = sock_create_kern(PF_INET, SOCK_STREAM, + IPPROTO_TCP, csocket); if (rc < 0) { - cERROR(1, ("Error %d creating socket",rc)); + cERROR(1, ("Error %d creating socket", rc)); *csocket = NULL; return rc; } else { /* BB other socket options to set KEEPALIVE, NODELAY? */ - cFYI(1,("Socket created")); - (*csocket)->sk->sk_allocation = GFP_NOFS; + cFYI(1, ("Socket created")); + (*csocket)->sk->sk_allocation = GFP_NOFS; } } psin_server->sin_family = AF_INET; - if(psin_server->sin_port) { /* user overrode default port */ + if (psin_server->sin_port) { /* user overrode default port */ rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in),0); + sizeof (struct sockaddr_in), 0); if (rc >= 0) connected = 1; - } + } - if(!connected) { - /* save original port so we can retry user specified port + if (!connected) { + /* save original port so we can retry user specified port later if fall back ports fail this time */ orig_port = psin_server->sin_port; /* do not retry on the same port we just failed on */ - if(psin_server->sin_port != htons(CIFS_PORT)) { + if (psin_server->sin_port != htons(CIFS_PORT)) { psin_server->sin_port = htons(CIFS_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in),0); + sizeof (struct sockaddr_in), 0); if (rc >= 0) connected = 1; } @@ -1464,60 +1501,63 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, if (!connected) { psin_server->sin_port = htons(RFC1001_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) - psin_server, sizeof (struct sockaddr_in),0); - if (rc >= 0) + psin_server, + sizeof (struct sockaddr_in), 0); + if (rc >= 0) connected = 1; } /* give up here - unless we want to retry on different protocol families some day */ if (!connected) { - if(orig_port) + if (orig_port) psin_server->sin_port = orig_port; - cFYI(1,("Error %d connecting to server via ipv4",rc)); + cFYI(1, ("Error %d connecting to server via ipv4", rc)); sock_release(*csocket); *csocket = NULL; return rc; } - /* Eventually check for other socket options to change from - the default. sock_setsockopt not used because it expects + /* Eventually check for other socket options to change from + the default. sock_setsockopt not used because it expects user space buffer */ - cFYI(1,("sndbuf %d rcvbuf %d rcvtimeo 0x%lx",(*csocket)->sk->sk_sndbuf, + cFYI(1, ("sndbuf %d rcvbuf %d rcvtimeo 0x%lx", + (*csocket)->sk->sk_sndbuf, (*csocket)->sk->sk_rcvbuf, (*csocket)->sk->sk_rcvtimeo)); (*csocket)->sk->sk_rcvtimeo = 7 * HZ; /* make the bufsizes depend on wsize/rsize and max requests */ - if((*csocket)->sk->sk_sndbuf < (200 * 1024)) + if ((*csocket)->sk->sk_sndbuf < (200 * 1024)) (*csocket)->sk->sk_sndbuf = 200 * 1024; - if((*csocket)->sk->sk_rcvbuf < (140 * 1024)) + if ((*csocket)->sk->sk_rcvbuf < (140 * 1024)) (*csocket)->sk->sk_rcvbuf = 140 * 1024; /* send RFC1001 sessinit */ - if(psin_server->sin_port == htons(RFC1001_PORT)) { + if (psin_server->sin_port == htons(RFC1001_PORT)) { /* some servers require RFC1001 sessinit before sending - negprot - BB check reconnection in case where second + negprot - BB check reconnection in case where second sessinit is sent but no second negprot */ - struct rfc1002_session_packet * ses_init_buf; - struct smb_hdr * smb_buf; - ses_init_buf = kzalloc(sizeof(struct rfc1002_session_packet), GFP_KERNEL); - if(ses_init_buf) { + struct rfc1002_session_packet *ses_init_buf; + struct smb_hdr *smb_buf; + ses_init_buf = kzalloc(sizeof(struct rfc1002_session_packet), + GFP_KERNEL); + if (ses_init_buf) { ses_init_buf->trailer.session_req.called_len = 32; - if(target_name && (target_name[0] != 0)) { + if (target_name && (target_name[0] != 0)) { rfc1002mangle(ses_init_buf->trailer.session_req.called_name, target_name, 16); } else { rfc1002mangle(ses_init_buf->trailer.session_req.called_name, - DEFAULT_CIFS_CALLED_NAME,16); + DEFAULT_CIFS_CALLED_NAME, 16); } ses_init_buf->trailer.session_req.calling_len = 32; /* calling name ends in null (byte 16) from old smb convention. */ - if(netbios_name && (netbios_name[0] !=0)) { + if (netbios_name && (netbios_name[0] != 0)) { rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, - netbios_name,16); + netbios_name, 16); } else { rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, - "LINUX_CIFS_CLNT",16); + "LINUX_CIFS_CLNT", 16); } ses_init_buf->trailer.session_req.scope1 = 0; ses_init_buf->trailer.session_req.scope2 = 0; @@ -1527,20 +1567,20 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, rc = smb_send(*csocket, smb_buf, 0x44, (struct sockaddr *)psin_server); kfree(ses_init_buf); - msleep(1); /* RFC1001 layer in at least one server + msleep(1); /* RFC1001 layer in at least one server requires very short break before negprot presumably because not expecting negprot to follow so fast. This is a simple - solution that works without + solution that works without complicating the code and causes no significant slowing down on mount for everyone else */ } - /* else the negprot may still work without this + /* else the negprot may still work without this even though malloc failed */ - + } - + return rc; } @@ -1551,41 +1591,42 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket) int connected = 0; __be16 orig_port = 0; - if(*csocket == NULL) { - rc = sock_create_kern(PF_INET6, SOCK_STREAM, IPPROTO_TCP, csocket); + if (*csocket == NULL) { + rc = sock_create_kern(PF_INET6, SOCK_STREAM, + IPPROTO_TCP, csocket); if (rc < 0) { - cERROR(1, ("Error %d creating ipv6 socket",rc)); + cERROR(1, ("Error %d creating ipv6 socket", rc)); *csocket = NULL; return rc; } else { /* BB other socket options to set KEEPALIVE, NODELAY? */ - cFYI(1,("ipv6 Socket created")); + cFYI(1, ("ipv6 Socket created")); (*csocket)->sk->sk_allocation = GFP_NOFS; } } psin_server->sin6_family = AF_INET6; - if(psin_server->sin6_port) { /* user overrode default port */ + if (psin_server->sin6_port) { /* user overrode default port */ rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in6),0); + sizeof (struct sockaddr_in6), 0); if (rc >= 0) connected = 1; - } + } - if(!connected) { - /* save original port so we can retry user specified port + if (!connected) { + /* save original port so we can retry user specified port later if fall back ports fail this time */ orig_port = psin_server->sin6_port; /* do not retry on the same port we just failed on */ - if(psin_server->sin6_port != htons(CIFS_PORT)) { + if (psin_server->sin6_port != htons(CIFS_PORT)) { psin_server->sin6_port = htons(CIFS_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) psin_server, - sizeof (struct sockaddr_in6),0); + sizeof (struct sockaddr_in6), 0); if (rc >= 0) connected = 1; } @@ -1593,31 +1634,31 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket) if (!connected) { psin_server->sin6_port = htons(RFC1001_PORT); rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) - psin_server, sizeof (struct sockaddr_in6),0); - if (rc >= 0) + psin_server, sizeof (struct sockaddr_in6), 0); + if (rc >= 0) connected = 1; } /* give up here - unless we want to retry on different protocol families some day */ if (!connected) { - if(orig_port) + if (orig_port) psin_server->sin6_port = orig_port; - cFYI(1,("Error %d connecting to server via ipv6",rc)); + cFYI(1, ("Error %d connecting to server via ipv6", rc)); sock_release(*csocket); *csocket = NULL; return rc; } - /* Eventually check for other socket options to change from - the default. sock_setsockopt not used because it expects + /* Eventually check for other socket options to change from + the default. sock_setsockopt not used because it expects user space buffer */ (*csocket)->sk->sk_rcvtimeo = 7 * HZ; - + return rc; } -void reset_cifs_unix_caps(int xid, struct cifsTconInfo * tcon, - struct super_block * sb, struct smb_vol * vol_info) +void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, + struct super_block *sb, struct smb_vol *vol_info) { /* if we are reconnecting then should we check to see if * any requested capabilities changed locally e.g. via @@ -1629,65 +1670,87 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo * tcon, * What if we wanted to mount the server share twice once with * and once without posixacls or posix paths? */ __u64 saved_cap = le64_to_cpu(tcon->fsUnixInfo.Capability); - - - if(!CIFSSMBQFSUnixInfo(xid, tcon)) { + + if (vol_info && vol_info->no_linux_ext) { + tcon->fsUnixInfo.Capability = 0; + tcon->unix_ext = 0; /* Unix Extensions disabled */ + cFYI(1, ("Linux protocol extensions disabled")); + return; + } else if (vol_info) + tcon->unix_ext = 1; /* Unix Extensions supported */ + + if (tcon->unix_ext == 0) { + cFYI(1, ("Unix extensions disabled so not set on reconnect")); + return; + } + + if (!CIFSSMBQFSUnixInfo(xid, tcon)) { __u64 cap = le64_to_cpu(tcon->fsUnixInfo.Capability); - + /* check for reconnect case in which we do not want to change the mount behavior if we can avoid it */ - if(vol_info == NULL) { - /* turn off POSIX ACL and PATHNAMES if not set + if (vol_info == NULL) { + /* turn off POSIX ACL and PATHNAMES if not set originally at mount time */ if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0) cap &= ~CIFS_UNIX_POSIX_ACL_CAP; if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; - - - - } - + cap &= CIFS_UNIX_CAP_MASK; - if(vol_info && vol_info->no_psx_acl) + if (vol_info && vol_info->no_psx_acl) cap &= ~CIFS_UNIX_POSIX_ACL_CAP; - else if(CIFS_UNIX_POSIX_ACL_CAP & cap) { - cFYI(1,("negotiated posix acl support")); - if(sb) + else if (CIFS_UNIX_POSIX_ACL_CAP & cap) { + cFYI(1, ("negotiated posix acl support")); + if (sb) sb->s_flags |= MS_POSIXACL; } - if(vol_info && vol_info->posix_paths == 0) + if (vol_info && vol_info->posix_paths == 0) cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; - else if(cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) { - cFYI(1,("negotiate posix pathnames")); - if(sb) - CIFS_SB(sb)->mnt_cifs_flags |= + else if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) { + cFYI(1, ("negotiate posix pathnames")); + if (sb) + CIFS_SB(sb)->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS; } - + /* We might be setting the path sep back to a different form if we are reconnecting and the server switched its - posix path capability for this share */ - if(sb && (CIFS_SB(sb)->prepathlen > 0)) + posix path capability for this share */ + if (sb && (CIFS_SB(sb)->prepathlen > 0)) CIFS_SB(sb)->prepath[0] = CIFS_DIR_SEP(CIFS_SB(sb)); - - cFYI(1,("Negotiate caps 0x%x",(int)cap)); + + if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) { + if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) { + CIFS_SB(sb)->rsize = 127 * 1024; +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("larger reads not supported by srv")); +#endif + } + } + + + cFYI(1, ("Negotiate caps 0x%x", (int)cap)); #ifdef CONFIG_CIFS_DEBUG2 - if(cap & CIFS_UNIX_FCNTL_CAP) - cFYI(1,("FCNTL cap")); - if(cap & CIFS_UNIX_EXTATTR_CAP) - cFYI(1,("EXTATTR cap")); - if(cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) - cFYI(1,("POSIX path cap")); - if(cap & CIFS_UNIX_XATTR_CAP) - cFYI(1,("XATTR cap")); - if(cap & CIFS_UNIX_POSIX_ACL_CAP) - cFYI(1,("POSIX ACL cap")); + if (cap & CIFS_UNIX_FCNTL_CAP) + cFYI(1, ("FCNTL cap")); + if (cap & CIFS_UNIX_EXTATTR_CAP) + cFYI(1, ("EXTATTR cap")); + if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) + cFYI(1, ("POSIX path cap")); + if (cap & CIFS_UNIX_XATTR_CAP) + cFYI(1, ("XATTR cap")); + if (cap & CIFS_UNIX_POSIX_ACL_CAP) + cFYI(1, ("POSIX ACL cap")); + if (cap & CIFS_UNIX_LARGE_READ_CAP) + cFYI(1, ("very large read cap")); + if (cap & CIFS_UNIX_LARGE_WRITE_CAP) + cFYI(1, ("very large write cap")); #endif /* CIFS_DEBUG2 */ if (CIFSSMBSetFSUnixInfo(xid, tcon, cap)) { - cFYI(1,("setting capabilities failed")); + cFYI(1, ("setting capabilities failed")); } } } @@ -1711,8 +1774,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, xid = GetXid(); /* cFYI(1, ("Entering cifs_mount. Xid: %d with: %s", xid, mount_data)); */ - - memset(&volume_info,0,sizeof(struct smb_vol)); + + memset(&volume_info, 0, sizeof(struct smb_vol)); if (cifs_parse_mount_options(mount_data, devname, &volume_info)) { kfree(volume_info.UNC); kfree(volume_info.password); @@ -1722,15 +1785,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } if (volume_info.nullauth) { - cFYI(1,("null user")); + cFYI(1, ("null user")); volume_info.username = NULL; } else if (volume_info.username) { /* BB fixme parse for domain name here */ - cFYI(1, ("Username: %s ", volume_info.username)); + cFYI(1, ("Username: %s", volume_info.username)); } else { cifserror("No username specified"); - /* In userspace mount helper we can get user name from alternate - locations such as env variables and files on disk */ + /* In userspace mount helper we can get user name from alternate + locations such as env variables and files on disk */ kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1739,18 +1802,20 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } if (volume_info.UNCip && volume_info.UNC) { - rc = cifs_inet_pton(AF_INET, volume_info.UNCip,&sin_server.sin_addr.s_addr); + rc = cifs_inet_pton(AF_INET, volume_info.UNCip, + &sin_server.sin_addr.s_addr); - if(rc <= 0) { + if (rc <= 0) { /* not ipv4 address, try ipv6 */ - rc = cifs_inet_pton(AF_INET6,volume_info.UNCip,&sin_server6.sin6_addr.in6_u); - if(rc > 0) + rc = cifs_inet_pton(AF_INET6, volume_info.UNCip, + &sin_server6.sin6_addr.in6_u); + if (rc > 0) address_type = AF_INET6; } else { address_type = AF_INET; } - - if(rc <= 0) { + + if (rc <= 0) { /* we failed translating address */ kfree(volume_info.UNC); kfree(volume_info.password); @@ -1762,9 +1827,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cFYI(1, ("UNC: %s ip: %s", volume_info.UNC, volume_info.UNCip)); /* success */ rc = 0; - } else if (volume_info.UNCip){ - /* BB using ip addr as server name connect to the DFS root below */ - cERROR(1,("Connecting to DFS root not implemented yet")); + } else if (volume_info.UNCip) { + /* BB using ip addr as server name to connect to the + DFS root below */ + cERROR(1, ("Connecting to DFS root not implemented yet")); kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1772,7 +1838,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, return -EINVAL; } else /* which servers DFS root would we conect to */ { cERROR(1, - ("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified")); + ("CIFS mount error: No UNC path (e.g. -o " + "unc=//192.168.1.100/public) specified")); kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1781,13 +1848,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } /* this is needed for ASCII cp to Unicode converts */ - if(volume_info.iocharset == NULL) { + if (volume_info.iocharset == NULL) { cifs_sb->local_nls = load_nls_default(); /* load_nls_default can not return null */ } else { cifs_sb->local_nls = load_nls(volume_info.iocharset); - if(cifs_sb->local_nls == NULL) { - cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset)); + if (cifs_sb->local_nls == NULL) { + cERROR(1, ("CIFS mount error: iocharset %s not found", + volume_info.iocharset)); kfree(volume_info.UNC); kfree(volume_info.password); kfree(volume_info.prepath); @@ -1796,12 +1864,12 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } } - if(address_type == AF_INET) + if (address_type == AF_INET) existingCifsSes = cifs_find_tcp_session(&sin_server.sin_addr, NULL /* no ipv6 addr */, volume_info.username, &srvTcp); - else if(address_type == AF_INET6) { - cFYI(1,("looking for ipv6 address")); + else if (address_type == AF_INET6) { + cFYI(1, ("looking for ipv6 address")); existingCifsSes = cifs_find_tcp_session(NULL /* no ipv4 addr */, &sin_server6.sin6_addr, volume_info.username, &srvTcp); @@ -1813,26 +1881,25 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, return -EINVAL; } - if (srvTcp) { - cFYI(1, ("Existing tcp session with server found")); + cFYI(1, ("Existing tcp session with server found")); } else { /* create socket */ if (volume_info.port) sin_server.sin_port = htons(volume_info.port); else sin_server.sin_port = 0; if (address_type == AF_INET6) { - cFYI(1,("attempting ipv6 connect")); + cFYI(1, ("attempting ipv6 connect")); /* BB should we allow ipv6 on port 139? */ /* other OS never observed in Wild doing 139 with v6 */ - rc = ipv6_connect(&sin_server6,&csocket); - } else - rc = ipv4_connect(&sin_server,&csocket, + rc = ipv6_connect(&sin_server6, &csocket); + } else + rc = ipv4_connect(&sin_server, &csocket, volume_info.source_rfc1001_name, volume_info.target_rfc1001_name); if (rc < 0) { - cERROR(1, - ("Error connecting to IPv4 socket. Aborting operation")); + cERROR(1, ("Error connecting to IPv4 socket. " + "Aborting operation")); if (csocket != NULL) sock_release(csocket); kfree(volume_info.UNC); @@ -1853,8 +1920,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, return rc; } else { memset(srvTcp, 0, sizeof (struct TCP_Server_Info)); - memcpy(&srvTcp->addr.sockAddr, &sin_server, sizeof (struct sockaddr_in)); - atomic_set(&srvTcp->inFlight,0); + memcpy(&srvTcp->addr.sockAddr, &sin_server, + sizeof (struct sockaddr_in)); + atomic_set(&srvTcp->inFlight, 0); /* BB Add code for ipv6 case too */ srvTcp->ssocket = csocket; srvTcp->protocolType = IPV4; @@ -1869,7 +1937,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, srvTcp->tsk = kthread_run((void *)(void *)cifs_demultiplex_thread, srvTcp, "cifsd"); if ( IS_ERR(srvTcp->tsk) ) { rc = PTR_ERR(srvTcp->tsk); - cERROR(1,("error %d create cifsd thread", rc)); + cERROR(1, ("error %d create cifsd thread", rc)); srvTcp->tsk = NULL; sock_release(csocket); kfree(volume_info.UNC); @@ -1880,8 +1948,10 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } wait_for_completion(&cifsd_complete); rc = 0; - memcpy(srvTcp->workstation_RFC1001_name, volume_info.source_rfc1001_name,16); - memcpy(srvTcp->server_RFC1001_name, volume_info.target_rfc1001_name,16); + memcpy(srvTcp->workstation_RFC1001_name, + volume_info.source_rfc1001_name, 16); + memcpy(srvTcp->server_RFC1001_name, + volume_info.target_rfc1001_name, 16); srvTcp->sequence_number = 0; } } @@ -1902,16 +1972,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, NIPQUAD(sin_server.sin_addr.s_addr)); } - if (!rc){ - /* volume_info.password freed at unmount */ + if (!rc) { + /* volume_info.password freed at unmount */ if (volume_info.password) pSesInfo->password = volume_info.password; if (volume_info.username) strncpy(pSesInfo->userName, - volume_info.username,MAX_USERNAME_SIZE); + volume_info.username, + MAX_USERNAME_SIZE); if (volume_info.domainname) { int len = strlen(volume_info.domainname); - pSesInfo->domainName = + pSesInfo->domainName = kmalloc(len + 1, GFP_KERNEL); if (pSesInfo->domainName) strcpy(pSesInfo->domainName, @@ -1921,46 +1992,48 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, pSesInfo->overrideSecFlg = volume_info.secFlg; down(&pSesInfo->sesSem); /* BB FIXME need to pass vol->secFlgs BB */ - rc = cifs_setup_session(xid,pSesInfo, cifs_sb->local_nls); + rc = cifs_setup_session(xid, pSesInfo, + cifs_sb->local_nls); up(&pSesInfo->sesSem); if (!rc) atomic_inc(&srvTcp->socketUseCount); } else kfree(volume_info.password); } - + /* search for existing tcon to this server share */ if (!rc) { if (volume_info.rsize > CIFSMaxBufSize) { - cERROR(1,("rsize %d too large, using MaxBufSize", + cERROR(1, ("rsize %d too large, using MaxBufSize", volume_info.rsize)); cifs_sb->rsize = CIFSMaxBufSize; - } else if((volume_info.rsize) && (volume_info.rsize <= CIFSMaxBufSize)) + } else if ((volume_info.rsize) && + (volume_info.rsize <= CIFSMaxBufSize)) cifs_sb->rsize = volume_info.rsize; else /* default */ cifs_sb->rsize = CIFSMaxBufSize; if (volume_info.wsize > PAGEVEC_SIZE * PAGE_CACHE_SIZE) { - cERROR(1,("wsize %d too large using 4096 instead", + cERROR(1, ("wsize %d too large, using 4096 instead", volume_info.wsize)); cifs_sb->wsize = 4096; } else if (volume_info.wsize) cifs_sb->wsize = volume_info.wsize; else - cifs_sb->wsize = + cifs_sb->wsize = min_t(const int, PAGEVEC_SIZE * PAGE_CACHE_SIZE, 127*1024); /* old default of CIFSMaxBufSize was too small now - that SMB Write2 can send multiple pages in kvec. + that SMB Write2 can send multiple pages in kvec. RFC1001 does not describe what happens when frame bigger than 128K is sent so use that as max in conjunction with 52K kvec constraint on arch with 4K page size */ if (cifs_sb->rsize < 2048) { - cifs_sb->rsize = 2048; + cifs_sb->rsize = 2048; /* Windows ME may prefer this */ - cFYI(1,("readsize set to minimum 2048")); + cFYI(1, ("readsize set to minimum: 2048")); } /* calculate prepath */ cifs_sb->prepath = volume_info.prepath; @@ -1968,14 +2041,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cifs_sb->prepathlen = strlen(cifs_sb->prepath); cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb); volume_info.prepath = NULL; - } else + } else cifs_sb->prepathlen = 0; cifs_sb->mnt_uid = volume_info.linux_uid; cifs_sb->mnt_gid = volume_info.linux_gid; cifs_sb->mnt_file_mode = volume_info.file_mode; cifs_sb->mnt_dir_mode = volume_info.dir_mode; - cFYI(1,("file mode: 0x%x dir mode: 0x%x", - cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode)); + cFYI(1, ("file mode: 0x%x dir mode: 0x%x", + cifs_sb->mnt_file_mode, cifs_sb->mnt_dir_mode)); if (volume_info.noperm) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM; @@ -1998,7 +2071,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if (volume_info.override_gid) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_GID; if (volume_info.direct_io) { - cFYI(1,("mounting share using direct i/o")); + cFYI(1, ("mounting share using direct i/o")); cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO; } @@ -2009,7 +2082,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, cFYI(1, ("Found match on UNC path")); /* we can have only one retry value for a connection to a share so for resources mounted more than once - to the same server share the last value passed in + to the same server share the last value passed in for the retry flag is used */ tcon->retry = volume_info.retry; tcon->nocase = volume_info.nocase; @@ -2018,17 +2091,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if (tcon == NULL) rc = -ENOMEM; else { - /* check for null share name ie connecting to + /* check for null share name ie connecting to * dfs root */ - /* BB check if this works for exactly length + /* BB check if this works for exactly length * three strings */ if ((strchr(volume_info.UNC + 3, '\\') == NULL) && (strchr(volume_info.UNC + 3, '/') == NULL)) { rc = connect_to_dfs_path(xid, pSesInfo, "", cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(volume_info.UNC); FreeXid(xid); @@ -2037,7 +2110,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, /* BB Do we need to wrap sesSem around * this TCon call and Unix SetFS as * we do on SessSetup and reconnect? */ - rc = CIFSTCon(xid, pSesInfo, + rc = CIFSTCon(xid, pSesInfo, volume_info.UNC, tcon, cifs_sb->local_nls); cFYI(1, ("CIFS Tcon rc = %d", rc)); @@ -2074,9 +2147,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, always wake up processes blocked in tcp in recv_mesg then we could remove the send_sig call */ - send_sig(SIGKILL,srvTcp->tsk,1); + force_sig(SIGKILL, srvTcp->tsk); tsk = srvTcp->tsk; - if(tsk) + if (tsk) kthread_stop(tsk); } } @@ -2085,15 +2158,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, tconInfoFree(tcon); if (existingCifsSes == NULL) { if (pSesInfo) { - if ((pSesInfo->server) && + if ((pSesInfo->server) && (pSesInfo->status == CifsGood)) { int temp_rc; temp_rc = CIFSSMBLogoff(xid, pSesInfo); /* if the socketUseCount is now zero */ if ((temp_rc == -ESHUTDOWN) && - (pSesInfo->server) && (pSesInfo->server->tsk)) { + (pSesInfo->server) && + (pSesInfo->server->tsk)) { struct task_struct *tsk; - send_sig(SIGKILL,pSesInfo->server->tsk,1); + force_sig(SIGKILL, + pSesInfo->server->tsk); tsk = pSesInfo->server->tsk; if (tsk) kthread_stop(tsk); @@ -2112,19 +2187,29 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, /* do not care if following two calls succeed - informational */ CIFSSMBQFSDeviceInfo(xid, tcon); CIFSSMBQFSAttributeInfo(xid, tcon); - + /* tell server which Unix caps we support */ if (tcon->ses->capabilities & CAP_UNIX) + /* reset of caps checks mount to see if unix extensions + disabled for just this mount */ reset_cifs_unix_caps(xid, tcon, sb, &volume_info); - + else + tcon->unix_ext = 0; /* server does not support them */ + + if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) { + cifs_sb->rsize = 1024 * 127; +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("no very large read support, rsize now 127K")); +#endif + } if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X)) cifs_sb->wsize = min(cifs_sb->wsize, (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE)); if (!(tcon->ses->capabilities & CAP_LARGE_READ_X)) - cifs_sb->rsize = min(cifs_sb->rsize, - (tcon->ses->server->maxBuf - - MAX_CIFS_HDR_SIZE)); + cifs_sb->rsize = min(cifs_sb->rsize, + (tcon->ses->server->maxBuf - + MAX_CIFS_HDR_SIZE)); } /* volume_info.password is freed above when existing session found @@ -2177,7 +2262,8 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, pSMB->req_no_secext.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); pSMB->req_no_secext.MaxMpxCount = cpu_to_le16(ses->server->maxReq); - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & + (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | @@ -2196,7 +2282,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, } pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); - pSMB->req_no_secext.CaseInsensitivePasswordLength = + pSMB->req_no_secext.CaseInsensitivePasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); pSMB->req_no_secext.CaseSensitivePasswordLength = @@ -2214,9 +2300,9 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, } if (user == NULL) bytes_returned = 0; /* skip null user */ - else + else bytes_returned = - cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, + cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, nls_codepage); /* convert number of 16 bit words to bytes */ bcc_ptr += 2 * bytes_returned; @@ -2246,7 +2332,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr += 2 * bytes_returned; bcc_ptr += 2; } else { - if (user != NULL) { + if (user != NULL) { strncpy(bcc_ptr, user, 200); bcc_ptr += strnlen(user, 200); } @@ -2281,11 +2367,12 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, __u16 action = le16_to_cpu(pSMBr->resp.Action); __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); /* do we want to mark SesInfo struct ? */ - ses->Suid = smb_buffer_response->Uid; /* UID left in wire format (le) */ + cFYI(1, (" Guest login")); /* BB mark SesInfo struct? */ + ses->Suid = smb_buffer_response->Uid; /* UID left in wire format + (little endian) */ cFYI(1, ("UID = %d ", ses->Suid)); - /* response can have either 3 or 4 word count - Samba sends 3 */ - bcc_ptr = pByteArea(smb_buffer_response); + /* response can have either 3 or 4 word count - Samba sends 3 */ + bcc_ptr = pByteArea(smb_buffer_response); if ((pSMBr->resp.hdr.WordCount == 3) || ((pSMBr->resp.hdr.WordCount == 4) && (blob_len < pSMBr->resp.ByteCount))) { @@ -2295,8 +2382,10 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { if ((long) (bcc_ptr) % 2) { remaining_words = - (BCC(smb_buffer_response) - 1) /2; - bcc_ptr++; /* Unicode strings must be word aligned */ + (BCC(smb_buffer_response) - 1) / 2; + /* Unicode strings must be word + aligned */ + bcc_ptr++; } else { remaining_words = BCC(smb_buffer_response) / 2; @@ -2307,13 +2396,15 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); - ses->serverOS = kzalloc(2 * (len + 1), GFP_KERNEL); - if(ses->serverOS == NULL) + ses->serverOS = kzalloc(2 * (len + 1), + GFP_KERNEL); + if (ses->serverOS == NULL) goto sesssetup_nomem; cifs_strfromUCS_le(ses->serverOS, - (__le16 *)bcc_ptr, len,nls_codepage); + (__le16 *)bcc_ptr, + len, nls_codepage); bcc_ptr += 2 * (len + 1); remaining_words -= len + 1; ses->serverOS[2 * len] = 0; @@ -2322,42 +2413,49 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, len = UniStrnlen((wchar_t *)bcc_ptr, remaining_words-1); kfree(ses->serverNOS); - ses->serverNOS = kzalloc(2 * (len + 1),GFP_KERNEL); - if(ses->serverNOS == NULL) + ses->serverNOS = kzalloc(2 * (len + 1), + GFP_KERNEL); + if (ses->serverNOS == NULL) goto sesssetup_nomem; cifs_strfromUCS_le(ses->serverNOS, - (__le16 *)bcc_ptr,len,nls_codepage); + (__le16 *)bcc_ptr, + len, nls_codepage); bcc_ptr += 2 * (len + 1); ses->serverNOS[2 * len] = 0; ses->serverNOS[1 + (2 * len)] = 0; - if(strncmp(ses->serverNOS, - "NT LAN Manager 4",16) == 0) { - cFYI(1,("NT4 server")); + if (strncmp(ses->serverNOS, + "NT LAN Manager 4", 16) == 0) { + cFYI(1, ("NT4 server")); ses->flags |= CIFS_SES_NT4; } remaining_words -= len + 1; if (remaining_words > 0) { len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); - /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ - if(ses->serverDomain) + /* last string is not always null terminated + (for e.g. for Windows XP & 2000) */ + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = - kzalloc(2*(len+1),GFP_KERNEL); - if(ses->serverDomain == NULL) + kzalloc(2*(len+1), + GFP_KERNEL); + if (ses->serverDomain == NULL) goto sesssetup_nomem; cifs_strfromUCS_le(ses->serverDomain, - (__le16 *)bcc_ptr,len,nls_codepage); + (__le16 *)bcc_ptr, + len, nls_codepage); bcc_ptr += 2 * (len + 1); ses->serverDomain[2*len] = 0; ses->serverDomain[1+(2*len)] = 0; - } /* else no more room so create dummy domain string */ - else { - if(ses->serverDomain) + } else { /* else no more room so create + dummy domain string */ + if (ses->serverDomain) kfree(ses->serverDomain); - ses->serverDomain = + ses->serverDomain = kzalloc(2, GFP_KERNEL); } - } else { /* no room so create dummy domain and NOS string */ + } else { /* no room so create dummy domain + and NOS string */ + /* if these kcallocs fail not much we can do, but better to not fail the sesssetup itself */ @@ -2374,19 +2472,22 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, pByteArea(smb_buffer_response) <= BCC(smb_buffer_response)) { kfree(ses->serverOS); - ses->serverOS = kzalloc(len + 1,GFP_KERNEL); - if(ses->serverOS == NULL) + ses->serverOS = kzalloc(len + 1, + GFP_KERNEL); + if (ses->serverOS == NULL) goto sesssetup_nomem; - strncpy(ses->serverOS,bcc_ptr, len); + strncpy(ses->serverOS, bcc_ptr, len); bcc_ptr += len; - bcc_ptr[0] = 0; /* null terminate the string */ + /* null terminate the string */ + bcc_ptr[0] = 0; bcc_ptr++; len = strnlen(bcc_ptr, 1024); kfree(ses->serverNOS); - ses->serverNOS = kzalloc(len + 1,GFP_KERNEL); - if(ses->serverNOS == NULL) + ses->serverNOS = kzalloc(len + 1, + GFP_KERNEL); + if (ses->serverNOS == NULL) goto sesssetup_nomem; strncpy(ses->serverNOS, bcc_ptr, len); bcc_ptr += len; @@ -2394,23 +2495,27 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); - ses->serverDomain = kzalloc(len + 1,GFP_KERNEL); - if(ses->serverDomain == NULL) + ses->serverDomain = kzalloc(len + 1, + GFP_KERNEL); + if (ses->serverDomain == NULL) goto sesssetup_nomem; - strncpy(ses->serverDomain, bcc_ptr, len); + strncpy(ses->serverDomain, bcc_ptr, + len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; } else cFYI(1, - ("Variable field of length %d extends beyond end of smb ", + ("Variable field of length %d " + "extends beyond end of smb ", len)); } } else { cERROR(1, - (" Security Blob Length extends beyond end of SMB")); + (" Security Blob Length extends beyond " + "end of SMB")); } } else { cERROR(1, @@ -2429,7 +2534,7 @@ sesssetup_nomem: /* do not return an error on nomem for the info strings, static int CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, - struct cifsSesInfo *ses, int * pNTLMv2_flag, + struct cifsSesInfo *ses, int *pNTLMv2_flag, const struct nls_table *nls_codepage) { struct smb_hdr *smb_buffer; @@ -2449,7 +2554,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, __u16 count; cFYI(1, ("In NTLMSSP sesssetup (negotiate)")); - if(ses == NULL) + if (ses == NULL) return -EINVAL; domain = ses->domainName; *pNTLMv2_flag = FALSE; @@ -2473,7 +2578,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | @@ -2501,9 +2606,9 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_56 | /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128; - if(sign_CIFS_PDUs) + if (sign_CIFS_PDUs) negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN; -/* if(ntlmv2_support) +/* if (ntlmv2_support) negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;*/ /* setup pointers to domain name and workstation name */ bcc_ptr += SecurityBlobLength; @@ -2573,11 +2678,11 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); - /* Do we want to set anything in SesInfo struct when guest login? */ + cFYI(1, (" Guest login")); + /* Do we want to set anything in SesInfo struct when guest login? */ - bcc_ptr = pByteArea(smb_buffer_response); - /* response can have either 3 or 4 word count - Samba sends 3 */ + bcc_ptr = pByteArea(smb_buffer_response); + /* response can have either 3 or 4 word count - Samba sends 3 */ SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr; if (SecurityBlob2->MessageType != NtLmChallenge) { @@ -2585,7 +2690,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, ("Unexpected NTLMSSP message type received %d", SecurityBlob2->MessageType)); } else if (ses) { - ses->Suid = smb_buffer_response->Uid; /* UID left in le format */ + ses->Suid = smb_buffer_response->Uid; /* UID left in le format */ cFYI(1, ("UID = %d", ses->Suid)); if ((pSMBr->resp.hdr.WordCount == 3) || ((pSMBr->resp.hdr.WordCount == 4) @@ -2603,18 +2708,18 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, memcpy(ses->server->cryptKey, SecurityBlob2->Challenge, CIFS_CRYPTO_KEY_SIZE); - if(SecurityBlob2->NegotiateFlags & + if (SecurityBlob2->NegotiateFlags & cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2)) *pNTLMv2_flag = TRUE; - if((SecurityBlob2->NegotiateFlags & - cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) + if ((SecurityBlob2->NegotiateFlags & + cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) || (sign_CIFS_PDUs > 1)) - ses->server->secMode |= - SECMODE_SIGN_REQUIRED; - if ((SecurityBlob2->NegotiateFlags & + ses->server->secMode |= + SECMODE_SIGN_REQUIRED; + if ((SecurityBlob2->NegotiateFlags & cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs)) - ses->server->secMode |= + ses->server->secMode |= SECMODE_SIGN_ENABLED; if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { @@ -2622,7 +2727,8 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, remaining_words = (BCC(smb_buffer_response) - 1) / 2; - bcc_ptr++; /* Unicode strings must be word aligned */ + /* Must word align unicode strings */ + bcc_ptr++; } else { remaining_words = BCC @@ -2634,7 +2740,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(2 * (len + 1), GFP_KERNEL); @@ -2667,8 +2773,9 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, (2 * len)] = 0; remaining_words -= len + 1; if (remaining_words > 0) { - len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); - /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ + len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); + /* last string not always null terminated + (for e.g. for Windows XP & 2000) */ kfree(ses->serverDomain); ses->serverDomain = kzalloc(2 * @@ -2706,7 +2813,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, if (((long) bcc_ptr + len) - (long) pByteArea(smb_buffer_response) <= BCC(smb_buffer_response)) { - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(len + 1, @@ -2733,18 +2840,20 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, ses->serverDomain = kzalloc(len + 1, GFP_KERNEL); - strncpy(ses->serverDomain, bcc_ptr, len); + strncpy(ses->serverDomain, + bcc_ptr, len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; } else cFYI(1, - ("Variable field of length %d extends beyond end of smb", + ("field of length %d " + "extends beyond end of smb", len)); } } else { - cERROR(1, - (" Security Blob Length extends beyond end of SMB")); + cERROR(1, ("Security Blob Length extends beyond" + " end of SMB")); } } else { cERROR(1, ("No session structure passed in.")); @@ -2783,7 +2892,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, __u16 count; cFYI(1, ("In NTLMSSPSessSetup (Authenticate)")); - if(ses == NULL) + if (ses == NULL) return -EINVAL; user = ses->userName; domain = ses->domainName; @@ -2808,7 +2917,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, pSMB->req.hdr.Uid = ses->Suid; - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | @@ -2832,13 +2941,13 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8); SecurityBlob->MessageType = NtLmAuthenticate; bcc_ptr += SecurityBlobLength; - negotiate_flags = + negotiate_flags = NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO | 0x80000000 | NTLMSSP_NEGOTIATE_128; - if(sign_CIFS_PDUs) + if (sign_CIFS_PDUs) negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN; - if(ntlmv2_flag) + if (ntlmv2_flag) negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2; /* setup pointers to domain name and workstation name */ @@ -2902,13 +3011,17 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, cpu_to_le16(len); } - /* SecurityBlob->WorkstationName.Length = cifs_strtoUCS((__le16 *) bcc_ptr, "AMACHINE",64, nls_codepage); + /* SecurityBlob->WorkstationName.Length = + cifs_strtoUCS((__le16 *) bcc_ptr, "AMACHINE",64, nls_codepage); SecurityBlob->WorkstationName.Length *= 2; - SecurityBlob->WorkstationName.MaximumLength = cpu_to_le16(SecurityBlob->WorkstationName.Length); - SecurityBlob->WorkstationName.Buffer = cpu_to_le32(SecurityBlobLength); + SecurityBlob->WorkstationName.MaximumLength = + cpu_to_le16(SecurityBlob->WorkstationName.Length); + SecurityBlob->WorkstationName.Buffer = + cpu_to_le32(SecurityBlobLength); bcc_ptr += SecurityBlob->WorkstationName.Length; SecurityBlobLength += SecurityBlob->WorkstationName.Length; - SecurityBlob->WorkstationName.Length = cpu_to_le16(SecurityBlob->WorkstationName.Length); */ + SecurityBlob->WorkstationName.Length = + cpu_to_le16(SecurityBlob->WorkstationName.Length); */ if ((long) bcc_ptr % 2) { *bcc_ptr = 0; @@ -2994,17 +3107,20 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); if (action & GUEST_LOGIN) - cFYI(1, (" Guest login")); /* BB do we want to set anything in SesInfo struct ? */ -/* if(SecurityBlob2->MessageType != NtLm??){ - cFYI("Unexpected message type on auth response is %d ")); - } */ + cFYI(1, (" Guest login")); /* BB Should we set anything + in SesInfo struct ? */ +/* if (SecurityBlob2->MessageType != NtLm??) { + cFYI("Unexpected message type on auth response is %d")); + } */ + if (ses) { cFYI(1, - ("Does UID on challenge %d match auth response UID %d ", + ("Check challenge UID %d vs auth response UID %d", ses->Suid, smb_buffer_response->Uid)); - ses->Suid = smb_buffer_response->Uid; /* UID left in wire format */ - bcc_ptr = pByteArea(smb_buffer_response); - /* response can have either 3 or 4 word count - Samba sends 3 */ + /* UID left in wire format */ + ses->Suid = smb_buffer_response->Uid; + bcc_ptr = pByteArea(smb_buffer_response); + /* response can have either 3 or 4 word count - Samba sends 3 */ if ((pSMBr->resp.hdr.WordCount == 3) || ((pSMBr->resp.hdr.WordCount == 4) && (blob_len < @@ -3034,7 +3150,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(2 * (len + 1), GFP_KERNEL); @@ -3066,9 +3182,9 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, ses->serverNOS[1+(2*len)] = 0; remaining_words -= len + 1; if (remaining_words > 0) { - len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); + len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); /* last string not always null terminated (e.g. for Windows XP & 2000) */ - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = kzalloc(2 * @@ -3096,12 +3212,12 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, = 0; } /* else no more room so create dummy domain string */ else { - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = kzalloc(2,GFP_KERNEL); } } else { /* no room so create dummy domain and NOS string */ - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); ses->serverDomain = kzalloc(2, GFP_KERNEL); kfree(ses->serverNOS); @@ -3109,10 +3225,10 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, } } else { /* ASCII */ len = strnlen(bcc_ptr, 1024); - if (((long) bcc_ptr + len) - - (long) pByteArea(smb_buffer_response) - <= BCC(smb_buffer_response)) { - if(ses->serverOS) + if (((long) bcc_ptr + len) - + (long) pByteArea(smb_buffer_response) + <= BCC(smb_buffer_response)) { + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(len + 1,GFP_KERNEL); strncpy(ses->serverOS,bcc_ptr, len); @@ -3123,28 +3239,35 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, len = strnlen(bcc_ptr, 1024); kfree(ses->serverNOS); - ses->serverNOS = kzalloc(len+1,GFP_KERNEL); - strncpy(ses->serverNOS, bcc_ptr, len); + ses->serverNOS = kzalloc(len+1, + GFP_KERNEL); + strncpy(ses->serverNOS, + bcc_ptr, len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; len = strnlen(bcc_ptr, 1024); - if(ses->serverDomain) + if (ses->serverDomain) kfree(ses->serverDomain); - ses->serverDomain = kzalloc(len+1,GFP_KERNEL); - strncpy(ses->serverDomain, bcc_ptr, len); + ses->serverDomain = + kzalloc(len+1, + GFP_KERNEL); + strncpy(ses->serverDomain, + bcc_ptr, len); bcc_ptr += len; bcc_ptr[0] = 0; bcc_ptr++; } else cFYI(1, - ("Variable field of length %d extends beyond end of smb ", + ("field of length %d " + "extends beyond end of smb ", len)); } } else { cERROR(1, - (" Security Blob Length extends beyond end of SMB")); + (" Security Blob extends beyond end " + "of SMB")); } } else { cERROR(1, ("No session structure passed in.")); @@ -3196,7 +3319,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, pSMB->AndXCommand = 0xFF; pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO); bcc_ptr = &pSMB->Password[0]; - if((ses->server->secMode) & SECMODE_USER) { + if ((ses->server->secMode) & SECMODE_USER) { pSMB->PasswordLength = cpu_to_le16(1); /* minimum */ *bcc_ptr = 0; /* password is null byte */ bcc_ptr++; /* skip password */ @@ -3210,7 +3333,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, by Samba (not sure whether other servers allow NTLMv2 password here) */ #ifdef CONFIG_CIFS_WEAK_PW_HASH - if((extended_security & CIFSSEC_MAY_LANMAN) && + if ((extended_security & CIFSSEC_MAY_LANMAN) && (ses->server->secType == LANMAN)) calc_lanman_hash(ses, bcc_ptr); else @@ -3220,14 +3343,14 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr); bcc_ptr += CIFS_SESS_KEY_SIZE; - if(ses->capabilities & CAP_UNICODE) { + if (ses->capabilities & CAP_UNICODE) { /* must align unicode strings */ *bcc_ptr = 0; /* null byte password */ bcc_ptr++; } } - if(ses->server->secMode & + if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; @@ -3240,8 +3363,8 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, if (ses->capabilities & CAP_UNICODE) { smb_buffer->Flags2 |= SMBFLG2_UNICODE; length = - cifs_strtoUCS((__le16 *) bcc_ptr, tree, - 6 /* max utf8 char length in bytes */ * + cifs_strtoUCS((__le16 *) bcc_ptr, tree, + 6 /* max utf8 char length in bytes */ * (/* server len*/ + 256 /* share len */), nls_codepage); bcc_ptr += 2 * length; /* convert num 16 bit words to bytes */ bcc_ptr += 2; /* skip trailing null */ @@ -3265,8 +3388,8 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, tcon->tid = smb_buffer_response->Tid; bcc_ptr = pByteArea(smb_buffer_response); length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2); - /* skip service field (NB: this field is always ASCII) */ - bcc_ptr += length + 1; + /* skip service field (NB: this field is always ASCII) */ + bcc_ptr += length + 1; strncpy(tcon->treeName, tree, MAX_TREE_SIZE); if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { length = UniStrnlen((wchar_t *) bcc_ptr, 512); @@ -3284,7 +3407,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, bcc_ptr[1] = 0; bcc_ptr += 2; } - /* else do not bother copying these informational fields */ + /* else do not bother copying these information fields*/ } else { length = strnlen(bcc_ptr, 1024); if ((bcc_ptr + length) - @@ -3296,9 +3419,9 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, strncpy(tcon->nativeFileSystem, bcc_ptr, length); } - /* else do not bother copying these informational fields */ + /* else do not bother copying these information fields*/ } - if((smb_buffer_response->WordCount == 3) || + if ((smb_buffer_response->WordCount == 3) || (smb_buffer_response->WordCount == 7)) /* field is in same location */ tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport); @@ -3306,7 +3429,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, tcon->Flags = 0; cFYI(1, ("Tcon flags: 0x%x ", tcon->Flags)); } else if ((rc == 0) && tcon == NULL) { - /* all we need to save for IPC$ connection */ + /* all we need to save for IPC$ connection */ ses->ipc_tid = smb_buffer_response->Tid; } @@ -3322,7 +3445,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) int xid; struct cifsSesInfo *ses = NULL; struct task_struct *cifsd_task; - char * tmp; + char *tmp; xid = GetXid(); @@ -3343,9 +3466,9 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) FreeXid(xid); return 0; } else if (rc == -ESHUTDOWN) { - cFYI(1,("Waking up socket by sending it signal")); + cFYI(1, ("Waking up socket by sending signal")); if (cifsd_task) { - send_sig(SIGKILL,cifsd_task,1); + force_sig(SIGKILL, cifsd_task); kthread_stop(cifsd_task); } rc = 0; @@ -3354,7 +3477,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) } else cFYI(1, ("No session or bad tcon")); } - + cifs_sb->tcon = NULL; tmp = cifs_sb->prepath; cifs_sb->prepathlen = 0; @@ -3366,11 +3489,11 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) sesInfoFree(ses); FreeXid(xid); - return rc; /* BB check if we should always return zero here */ -} + return rc; /* BB check if we should always return zero here */ +} int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, - struct nls_table * nls_info) + struct nls_table *nls_info) { int rc = 0; char ntlm_session_key[CIFS_SESS_KEY_SIZE]; @@ -3378,16 +3501,16 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, int first_time = 0; /* what if server changes its buffer size after dropping the session? */ - if(pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ { + if (pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ { rc = CIFSSMBNegotiate(xid, pSesInfo); - if(rc == -EAGAIN) /* retry only once on 1st time connection */ { + if (rc == -EAGAIN) /* retry only once on 1st time connection */ { rc = CIFSSMBNegotiate(xid, pSesInfo); - if(rc == -EAGAIN) + if (rc == -EAGAIN) rc = -EHOSTDOWN; } - if(rc == 0) { + if (rc == 0) { spin_lock(&GlobalMid_Lock); - if(pSesInfo->server->tcpStatus != CifsExiting) + if (pSesInfo->server->tcpStatus != CifsExiting) pSesInfo->server->tcpStatus = CifsGood; else rc = -EHOSTDOWN; @@ -3399,18 +3522,19 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, if (!rc) { pSesInfo->flags = 0; pSesInfo->capabilities = pSesInfo->server->capabilities; - if(linuxExtEnabled == 0) + if (linuxExtEnabled == 0) pSesInfo->capabilities &= (~CAP_UNIX); /* pSesInfo->sequence_number = 0;*/ - cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d", + cFYI(1, + ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d", pSesInfo->server->secMode, pSesInfo->server->capabilities, pSesInfo->server->timeAdj)); - if(experimEnabled < 2) + if (experimEnabled < 2) rc = CIFS_SessSetup(xid, pSesInfo, first_time, nls_info); else if (extended_security - && (pSesInfo->capabilities + && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY) && (pSesInfo->server->secType == NTLMSSP)) { rc = -EOPNOTSUPP; @@ -3423,21 +3547,22 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, &ntlmv2_flag, nls_info); if (!rc) { - if(ntlmv2_flag) { - char * v2_response; - cFYI(1,("more secure NTLM ver2 hash")); - if(CalcNTLMv2_partial_mac_key(pSesInfo, + if (ntlmv2_flag) { + char *v2_response; + cFYI(1, ("more secure NTLM ver2 hash")); + if (CalcNTLMv2_partial_mac_key(pSesInfo, nls_info)) { rc = -ENOMEM; goto ss_err_exit; } else v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL); - if(v2_response) { - CalcNTLMv2_response(pSesInfo,v2_response); - /* if(first_time) - cifs_calculate_ntlmv2_mac_key( - pSesInfo->server->mac_signing_key, - response, ntlm_session_key, */ + if (v2_response) { + CalcNTLMv2_response(pSesInfo, + v2_response); + /* if (first_time) + cifs_calculate_ntlmv2_mac_key( + pSesInfo->server->mac_signing_key, + response, ntlm_session_key,*/ kfree(v2_response); /* BB Put dummy sig in SessSetup PDU? */ } else { @@ -3450,9 +3575,9 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, pSesInfo->server->cryptKey, ntlm_session_key); - if(first_time) + if (first_time) cifs_calculate_mac_key( - pSesInfo->server->mac_signing_key, + &pSesInfo->server->mac_signing_key, ntlm_session_key, pSesInfo->password); } @@ -3470,18 +3595,18 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, pSesInfo->server->cryptKey, ntlm_session_key); - if(first_time) + if (first_time) cifs_calculate_mac_key( - pSesInfo->server->mac_signing_key, + &pSesInfo->server->mac_signing_key, ntlm_session_key, pSesInfo->password); rc = CIFSSessSetup(xid, pSesInfo, ntlm_session_key, nls_info); } if (rc) { - cERROR(1,("Send error in SessSetup = %d",rc)); + cERROR(1, ("Send error in SessSetup = %d", rc)); } else { - cFYI(1,("CIFS Session Established successfully")); + cFYI(1, ("CIFS Session Established successfully")); pSesInfo->status = CifsGood; } } diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 8e86aaceb68a..4830acc86d74 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -135,10 +135,10 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; char *full_path = NULL; - FILE_ALL_INFO * buf = NULL; + FILE_ALL_INFO *buf = NULL; struct inode *newinode = NULL; - struct cifsFileInfo * pCifsFile = NULL; - struct cifsInodeInfo * pCifsInode; + struct cifsFileInfo *pCifsFile = NULL; + struct cifsInodeInfo *pCifsInode; int disposition = FILE_OVERWRITE_IF; int write_only = FALSE; @@ -207,8 +207,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, } else { /* If Open reported that we actually created a file then we now have to set the mode if possible */ - if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) && - (oplock & CIFS_CREATE_ACTION)) { + if ((pTcon->unix_ext) && (oplock & CIFS_CREATE_ACTION)) { mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, @@ -235,8 +234,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, /* Could set r/o dos attribute if mode & 0222 == 0 */ } - /* BB server might mask mode so we have to query for Unix case*/ - if (pTcon->ses->capabilities & CAP_UNIX) + /* server might mask mode so we have to query for it */ + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newinode, full_path, inode->i_sb, xid); else { @@ -264,7 +263,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, direntry->d_op = &cifs_dentry_ops; d_instantiate(direntry, newinode); } - if ((nd->flags & LOOKUP_OPEN) == FALSE) { + if ((nd == NULL /* nfsd case - nfs srv does not set nd */) || + ((nd->flags & LOOKUP_OPEN) == FALSE)) { /* mknod case - do not leave file open */ CIFSSMBClose(xid, pTcon, fileHandle); } else if (newinode) { @@ -323,7 +323,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; char *full_path = NULL; - struct inode * newinode = NULL; + struct inode *newinode = NULL; if (!old_valid_dev(device_number)) return -EINVAL; @@ -336,7 +336,7 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode, full_path = build_path_from_dentry(direntry); if (full_path == NULL) rc = -ENOMEM; - else if (pTcon->ses->capabilities & CAP_UNIX) { + else if (pTcon->unix_ext) { mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, @@ -490,7 +490,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, cFYI(1, (" Full path: %s inode = 0x%p", full_path, direntry->d_inode)); - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newInode, full_path, parent_dir_inode->i_sb, xid); else diff --git a/fs/cifs/export.c b/fs/cifs/export.c index 1d716392c3aa..893fd0aebff8 100644 --- a/fs/cifs/export.c +++ b/fs/cifs/export.c @@ -5,7 +5,7 @@ * Author(s): Steve French (sfrench@us.ibm.com) * * Common Internet FileSystem (CIFS) client - * + * * Operations related to support for exporting files via NFSD * * This library is free software; you can redistribute it and/or modify @@ -22,31 +22,45 @@ * along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - - /* + + /* * See Documentation/filesystems/Exporting * and examples in fs/exportfs + * + * Since cifs is a network file system, an "fsid" must be included for + * any nfs exports file entries which refer to cifs paths. In addition + * the cifs mount must be mounted with the "serverino" option (ie use stable + * server inode numbers instead of locally generated temporary ones). + * Although cifs inodes do not use generation numbers (have generation number + * of zero) - the inode number alone should be good enough for simple cases + * in which users want to export cifs shares with NFS. The decode and encode + * could be improved by using a new routine which expects 64 bit inode numbers + * instead of the default 32 bit routines in fs/exportfs + * */ #include <linux/fs.h> - +#include <linux/exportfs.h> +#include "cifsglob.h" +#include "cifs_debug.h" + #ifdef CONFIG_CIFS_EXPERIMENTAL - static struct dentry *cifs_get_parent(struct dentry *dentry) { - /* BB need to add code here eventually to enable export via NFSD */ - return ERR_PTR(-EACCES); + /* BB need to add code here eventually to enable export via NFSD */ + cFYI(1, ("get parent for %p", dentry)); + return ERR_PTR(-EACCES); } - + struct export_operations cifs_export_ops = { - .get_parent = cifs_get_parent, -/* Following five export operations are unneeded so far and can default */ -/* .get_dentry = - .get_name = - .find_exported_dentry = - .decode_fh = - .encode_fs = */ - }; - + .get_parent = cifs_get_parent, +/* Following five export operations are unneeded so far and can default: + .get_dentry = + .get_name = + .find_exported_dentry = + .decode_fh = + .encode_fs = */ +}; + #endif /* EXPERIMENTAL */ - + diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c index 8e375bb4b379..995474c90885 100644 --- a/fs/cifs/fcntl.c +++ b/fs/cifs/fcntl.c @@ -66,7 +66,7 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags) return cifs_ntfy_flags; } -int cifs_dir_notify(struct file * file, unsigned long arg) +int cifs_dir_notify(struct file *file, unsigned long arg) { int xid; int rc = -EINVAL; diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 94d5b49049df..e13592afca9c 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2,8 +2,8 @@ * fs/cifs/file.c * * vfs operations that deal with files - * - * Copyright (C) International Business Machines Corp., 2002,2003 + * + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) * @@ -45,7 +45,7 @@ static inline struct cifsFileInfo *cifs_init_private( { memset(private_data, 0, sizeof(struct cifsFileInfo)); private_data->netfid = netfid; - private_data->pid = current->tgid; + private_data->pid = current->tgid; init_MUTEX(&private_data->fh_sem); mutex_init(&private_data->lock_mutex); INIT_LIST_HEAD(&private_data->llist); @@ -57,7 +57,7 @@ static inline struct cifsFileInfo *cifs_init_private( does not tell us which handle the write is for so there can be a close (overlapping with write) of the filehandle that cifs_writepages chose to use */ - atomic_set(&private_data->wrtPending,0); + atomic_set(&private_data->wrtPending, 0); return private_data; } @@ -105,7 +105,7 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file, in the list so we do not have to walk the list to search for one in prepare_write */ if ((file->f_flags & O_ACCMODE) == O_WRONLY) { - list_add_tail(&pCifsFile->flist, + list_add_tail(&pCifsFile->flist, &pCifsInode->openFileList); } else { list_add(&pCifsFile->flist, @@ -138,7 +138,7 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file, } client_can_cache: - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&file->f_path.dentry->d_inode, full_path, inode->i_sb, xid); else @@ -189,7 +189,7 @@ int cifs_open(struct inode *inode, struct file *file) /* needed for writepage */ pCifsFile->pfile = file; - + file->private_data = pCifsFile; break; } @@ -212,15 +212,15 @@ int cifs_open(struct inode *inode, struct file *file) return -ENOMEM; } - cFYI(1, (" inode = 0x%p file flags are 0x%x for %s", + cFYI(1, ("inode = 0x%p file flags are 0x%x for %s", inode, file->f_flags, full_path)); desiredAccess = cifs_convert_flags(file->f_flags); /********************************************************************* * open flag mapping table: - * + * * POSIX Flag CIFS Disposition - * ---------- ---------------- + * ---------- ---------------- * O_CREAT FILE_OPEN_IF * O_CREAT | O_EXCL FILE_CREATE * O_CREAT | O_TRUNC FILE_OVERWRITE_IF @@ -228,12 +228,12 @@ int cifs_open(struct inode *inode, struct file *file) * none of the above FILE_OPEN * * Note that there is not a direct match between disposition - * FILE_SUPERSEDE (ie create whether or not file exists although + * FILE_SUPERSEDE (ie create whether or not file exists although * O_CREAT | O_TRUNC is similar but truncates the existing * file rather than creating a new file as FILE_SUPERSEDE does * (which uses the attributes / metadata passed in on open call) *? - *? O_SYNC is a reasonable match to CIFS writethrough flag + *? O_SYNC is a reasonable match to CIFS writethrough flag *? and the read write flags match reasonably. O_LARGEFILE *? is irrelevant because largefile support is always used *? by this client. Flags O_APPEND, O_DIRECT, O_DIRECTORY, @@ -253,8 +253,8 @@ int cifs_open(struct inode *inode, struct file *file) and calling get_inode_info with returned buf (at least helps non-Unix server case) */ - /* BB we can not do this if this is the second open of a file - and the first handle has writebehind data, we might be + /* BB we can not do this if this is the second open of a file + and the first handle has writebehind data, we might be able to simply do a filemap_fdatawrite/filemap_fdatawait first */ buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); if (!buf) { @@ -263,7 +263,7 @@ int cifs_open(struct inode *inode, struct file *file) } if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS) - rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, + rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess, CREATE_NOT_DIR, &netfid, &oplock, buf, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); @@ -300,15 +300,15 @@ int cifs_open(struct inode *inode, struct file *file) write_unlock(&GlobalSMBSeslock); } - if (oplock & CIFS_CREATE_ACTION) { + if (oplock & CIFS_CREATE_ACTION) { /* time to set mode which we can not set earlier due to problems creating new read-only files */ - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) { + if (pTcon->unix_ext) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, inode->i_mode, (__u64)-1, (__u64)-1, 0 /* dev */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } else { /* BB implement via Windows security descriptors eg @@ -345,7 +345,7 @@ static int cifs_reopen_file(struct file *file, int can_flush) struct cifsTconInfo *pTcon; struct cifsFileInfo *pCifsFile; struct cifsInodeInfo *pCifsInode; - struct inode * inode; + struct inode *inode; char *full_path = NULL; int desiredAccess; int disposition = FILE_OPEN; @@ -372,13 +372,13 @@ static int cifs_reopen_file(struct file *file, int can_flush) } inode = file->f_path.dentry->d_inode; - if(inode == NULL) { + if (inode == NULL) { cERROR(1, ("inode not valid")); dump_stack(); rc = -EBADF; goto reopen_error_exit; } - + cifs_sb = CIFS_SB(inode->i_sb); pTcon = cifs_sb->tcon; @@ -396,7 +396,7 @@ reopen_error_exit: } cFYI(1, ("inode = 0x%p file flags 0x%x for %s", - inode, file->f_flags,full_path)); + inode, file->f_flags, full_path)); desiredAccess = cifs_convert_flags(file->f_flags); if (oplockEnabled) @@ -405,14 +405,14 @@ reopen_error_exit: oplock = FALSE; /* Can not refresh inode by passing in file_info buf to be returned - by SMBOpen and then calling get_inode_info with returned buf - since file might have write behind data that needs to be flushed + by SMBOpen and then calling get_inode_info with returned buf + since file might have write behind data that needs to be flushed and server version of file size can be stale. If we knew for sure that inode was not dirty locally we could do this */ rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, desiredAccess, CREATE_NOT_DIR, &netfid, &oplock, NULL, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc) { up(&pCifsFile->fh_sem); @@ -430,7 +430,7 @@ reopen_error_exit: go to server to get inode info */ pCifsInode->clientCanCacheAll = FALSE; pCifsInode->clientCanCacheRead = FALSE; - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&inode, full_path, inode->i_sb, xid); else @@ -486,23 +486,24 @@ int cifs_close(struct inode *inode, struct file *file) already closed */ if (pTcon->tidStatus != CifsNeedReconnect) { int timeout = 2; - while((atomic_read(&pSMBFile->wrtPending) != 0) + while ((atomic_read(&pSMBFile->wrtPending) != 0) && (timeout < 1000) ) { /* Give write a better chance to get to server ahead of the close. We do not want to add a wait_q here as it would increase the memory utilization as the struct would be in each open file, - but this should give enough time to + but this should give enough time to clear the socket */ #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("close delay, write pending")); + cFYI(1, ("close delay, write pending")); #endif /* DEBUG2 */ msleep(timeout); timeout *= 4; } - if(atomic_read(&pSMBFile->wrtPending)) - cERROR(1,("close with pending writes")); + if (atomic_read(&pSMBFile->wrtPending)) + cERROR(1, + ("close with pending writes")); rc = CIFSSMBClose(xid, pTcon, pSMBFile->netfid); } @@ -534,7 +535,7 @@ int cifs_close(struct inode *inode, struct file *file) CIFS_I(inode)->clientCanCacheRead = FALSE; CIFS_I(inode)->clientCanCacheAll = FALSE; } - if ((rc ==0) && CIFS_I(inode)->write_behind_rc) + if ((rc == 0) && CIFS_I(inode)->write_behind_rc) rc = CIFS_I(inode)->write_behind_rc; FreeXid(xid); return rc; @@ -554,7 +555,8 @@ int cifs_closedir(struct inode *inode, struct file *file) if (pCFileStruct) { struct cifsTconInfo *pTcon; - struct cifs_sb_info *cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); + struct cifs_sb_info *cifs_sb = + CIFS_SB(file->f_path.dentry->d_sb); pTcon = cifs_sb->tcon; @@ -572,7 +574,7 @@ int cifs_closedir(struct inode *inode, struct file *file) if (ptmp) { cFYI(1, ("closedir free smb buf in srch struct")); pCFileStruct->srch_inf.ntwrk_buf_start = NULL; - if(pCFileStruct->srch_inf.smallBuf) + if (pCFileStruct->srch_inf.smallBuf) cifs_small_buf_release(ptmp); else cifs_buf_release(ptmp); @@ -594,7 +596,8 @@ int cifs_closedir(struct inode *inode, struct file *file) static int store_file_lock(struct cifsFileInfo *fid, __u64 len, __u64 offset, __u8 lockType) { - struct cifsLockInfo *li = kmalloc(sizeof(struct cifsLockInfo), GFP_KERNEL); + struct cifsLockInfo *li = + kmalloc(sizeof(struct cifsLockInfo), GFP_KERNEL); if (li == NULL) return -ENOMEM; li->offset = offset; @@ -625,8 +628,8 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) cFYI(1, ("Lock parm: 0x%x flockflags: " "0x%x flocktype: 0x%x start: %lld end: %lld", - cmd, pfLock->fl_flags, pfLock->fl_type, pfLock->fl_start, - pfLock->fl_end)); + cmd, pfLock->fl_flags, pfLock->fl_type, pfLock->fl_start, + pfLock->fl_end)); if (pfLock->fl_flags & FL_POSIX) cFYI(1, ("Posix")); @@ -641,7 +644,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) "not implemented yet")); if (pfLock->fl_flags & FL_LEASE) cFYI(1, ("Lease on file - not implemented yet")); - if (pfLock->fl_flags & + if (pfLock->fl_flags & (~(FL_POSIX | FL_FLOCK | FL_SLEEP | FL_ACCESS | FL_LEASE))) cFYI(1, ("Unknown lock flags 0x%x", pfLock->fl_flags)); @@ -683,9 +686,9 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) account for negative length which we can not accept over the wire */ if (IS_GETLK(cmd)) { - if(posix_locking) { + if (posix_locking) { int posix_lock_type; - if(lockType & LOCKING_ANDX_SHARED_LOCK) + if (lockType & LOCKING_ANDX_SHARED_LOCK) posix_lock_type = CIFS_RDLCK; else posix_lock_type = CIFS_WRLCK; @@ -700,7 +703,7 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, 0, 1, lockType, 0 /* wait flag */ ); if (rc == 0) { - rc = CIFSSMBLock(xid, pTcon, netfid, length, + rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, 1 /* numUnlock */ , 0 /* numLock */ , lockType, 0 /* wait flag */ ); @@ -729,22 +732,24 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) if (posix_locking) { int posix_lock_type; - if(lockType & LOCKING_ANDX_SHARED_LOCK) + if (lockType & LOCKING_ANDX_SHARED_LOCK) posix_lock_type = CIFS_RDLCK; else posix_lock_type = CIFS_WRLCK; - - if(numUnlock == 1) + + if (numUnlock == 1) posix_lock_type = CIFS_UNLCK; rc = CIFSSMBPosixLock(xid, pTcon, netfid, 0 /* set */, length, pfLock, posix_lock_type, wait_flag); } else { - struct cifsFileInfo *fid = (struct cifsFileInfo *)file->private_data; + struct cifsFileInfo *fid = + (struct cifsFileInfo *)file->private_data; if (numLock) { - rc = CIFSSMBLock(xid, pTcon, netfid, length, pfLock->fl_start, + rc = CIFSSMBLock(xid, pTcon, netfid, length, + pfLock->fl_start, 0, numLock, lockType, wait_flag); if (rc == 0) { @@ -763,7 +768,8 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock) list_for_each_entry_safe(li, tmp, &fid->llist, llist) { if (pfLock->fl_start <= li->offset && length >= li->length) { - stored_rc = CIFSSMBLock(xid, pTcon, netfid, + stored_rc = CIFSSMBLock(xid, pTcon, + netfid, li->length, li->offset, 1, 0, li->type, FALSE); if (stored_rc) @@ -805,7 +811,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, if (file->private_data == NULL) return -EBADF; open_file = (struct cifsFileInfo *) file->private_data; - + xid = GetXid(); if (*poffset > file->f_path.dentry->d_inode->i_size) @@ -824,7 +830,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, and blocked, and the file has been freed on us while we blocked so return what we managed to write */ return total_written; - } + } if (open_file->closePend) { FreeXid(xid); if (total_written) @@ -867,8 +873,8 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, /* since the write may have blocked check these pointers again */ if ((file->f_path.dentry) && (file->f_path.dentry->d_inode)) { struct inode *inode = file->f_path.dentry->d_inode; -/* Do not update local mtime - server will set its actual value on write - * inode->i_ctime = inode->i_mtime = +/* Do not update local mtime - server will set its actual value on write + * inode->i_ctime = inode->i_mtime = * current_fs_time(inode->i_sb);*/ if (total_written > 0) { spin_lock(&inode->i_lock); @@ -877,7 +883,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data, *poffset); spin_unlock(&inode->i_lock); } - mark_inode_dirty_sync(file->f_path.dentry->d_inode); + mark_inode_dirty_sync(file->f_path.dentry->d_inode); } FreeXid(xid); return total_written; @@ -898,13 +904,13 @@ static ssize_t cifs_write(struct file *file, const char *write_data, pTcon = cifs_sb->tcon; - cFYI(1,("write %zd bytes to offset %lld of %s", write_size, + cFYI(1, ("write %zd bytes to offset %lld of %s", write_size, *poffset, file->f_path.dentry->d_name.name)); if (file->private_data == NULL) return -EBADF; open_file = (struct cifsFileInfo *)file->private_data; - + xid = GetXid(); if (*poffset > file->f_path.dentry->d_inode->i_size) @@ -921,10 +927,10 @@ static ssize_t cifs_write(struct file *file, const char *write_data, FreeXid(xid); /* if we have gotten here we have written some data and blocked, and the file has been freed on us - while we blocked so return what we managed to + while we blocked so return what we managed to write */ return total_written; - } + } if (open_file->closePend) { FreeXid(xid); if (total_written) @@ -935,14 +941,14 @@ static ssize_t cifs_write(struct file *file, const char *write_data, if (open_file->invalidHandle) { /* we could deadlock if we called filemap_fdatawait from here so tell - reopen_file not to flush data to + reopen_file not to flush data to server now */ rc = cifs_reopen_file(file, FALSE); if (rc != 0) break; } - if(experimEnabled || (pTcon->ses->server && - ((pTcon->ses->server->secMode & + if (experimEnabled || (pTcon->ses->server && + ((pTcon->ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) == 0))) { struct kvec iov[2]; @@ -976,7 +982,7 @@ static ssize_t cifs_write(struct file *file, const char *write_data, } } else *poffset += bytes_written; - long_op = FALSE; /* subsequent writes fast - + long_op = FALSE; /* subsequent writes fast - 15 seconds is plenty */ } @@ -1009,8 +1015,8 @@ struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *cifs_inode) the VFS or MM) should not happen but we had reports of on oops (due to it being zero) during stress testcases so we need to check for it */ - if(cifs_inode == NULL) { - cERROR(1,("Null inode passed to cifs_writeable_file")); + if (cifs_inode == NULL) { + cERROR(1, ("Null inode passed to cifs_writeable_file")); dump_stack(); return NULL; } @@ -1024,13 +1030,14 @@ struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *cifs_inode) (open_file->pfile->f_flags & O_WRONLY))) { atomic_inc(&open_file->wrtPending); read_unlock(&GlobalSMBSeslock); - if((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend) /* BB fixme -since the second clause can not be true remove it BB */) { rc = cifs_reopen_file(open_file->pfile, FALSE); /* if it fails, try another handle - might be */ /* dangerous to hold up writepages with retry */ - if(rc) { - cFYI(1,("failed on reopen file in wp")); + if (rc) { + cFYI(1, + ("failed on reopen file in wp")); read_lock(&GlobalSMBSeslock); /* can not use this handle, no write pending on this one after all */ @@ -1082,7 +1089,7 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to) /* check to make sure that we are not extending the file */ if (mapping->host->i_size - offset < (loff_t)to) - to = (unsigned)(mapping->host->i_size - offset); + to = (unsigned)(mapping->host->i_size - offset); open_file = find_writable_file(CIFS_I(mapping->host)); if (open_file) { @@ -1116,8 +1123,8 @@ static int cifs_writepages(struct address_space *mapping, int done = 0; pgoff_t end; pgoff_t index; - int range_whole = 0; - struct kvec * iov; + int range_whole = 0; + struct kvec *iov; int len; int n_iov = 0; pgoff_t next; @@ -1131,7 +1138,7 @@ static int cifs_writepages(struct address_space *mapping, int xid; cifs_sb = CIFS_SB(mapping->host->i_sb); - + /* * If wsize is smaller that the page cache size, default to writing * one page at a time via cifs_writepage @@ -1139,14 +1146,14 @@ static int cifs_writepages(struct address_space *mapping, if (cifs_sb->wsize < PAGE_CACHE_SIZE) return generic_writepages(mapping, wbc); - if((cifs_sb->tcon->ses) && (cifs_sb->tcon->ses->server)) - if(cifs_sb->tcon->ses->server->secMode & - (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) - if(!experimEnabled) + if ((cifs_sb->tcon->ses) && (cifs_sb->tcon->ses->server)) + if (cifs_sb->tcon->ses->server->secMode & + (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (!experimEnabled) return generic_writepages(mapping, wbc); iov = kmalloc(32 * sizeof(struct kvec), GFP_KERNEL); - if(iov == NULL) + if (iov == NULL) return generic_writepages(mapping, wbc); @@ -1279,7 +1286,7 @@ retry: 1); atomic_dec(&open_file->wrtPending); if (rc || bytes_written < bytes_to_write) { - cERROR(1,("Write2 ret %d, written = %d", + cERROR(1, ("Write2 ret %d, wrote %d", rc, bytes_written)); /* BB what if continued retry is requested via mount flags? */ @@ -1295,8 +1302,8 @@ retry: success rc but too little data written? */ /* BB investigate retry logic on temporary server crash cases and how recovery works - when page marked as error */ - if(rc) + when page marked as error */ + if (rc) SetPageError(page); kunmap(page); unlock_page(page); @@ -1326,7 +1333,7 @@ retry: return rc; } -static int cifs_writepage(struct page* page, struct writeback_control *wbc) +static int cifs_writepage(struct page *page, struct writeback_control *wbc) { int rc = -EFAULT; int xid; @@ -1334,7 +1341,7 @@ static int cifs_writepage(struct page* page, struct writeback_control *wbc) xid = GetXid(); /* BB add check for wbc flags */ page_cache_get(page); - if (!PageUptodate(page)) { + if (!PageUptodate(page)) { cFYI(1, ("ppw - page not up to date")); } @@ -1348,7 +1355,7 @@ static int cifs_writepage(struct page* page, struct writeback_control *wbc) * Just unlocking the page will cause the radix tree tag-bits * to fail to update with the state of the page correctly. */ - set_page_writeback(page); + set_page_writeback(page); rc = cifs_partialpagewrite(page, 0, PAGE_CACHE_SIZE); SetPageUptodate(page); /* BB add check for error and Clearuptodate? */ unlock_page(page); @@ -1368,7 +1375,7 @@ static int cifs_commit_write(struct file *file, struct page *page, char *page_data; xid = GetXid(); - cFYI(1, ("commit write for page %p up to position %lld for %d", + cFYI(1, ("commit write for page %p up to position %lld for %d", page, position, to)); spin_lock(&inode->i_lock); if (position > inode->i_size) { @@ -1396,7 +1403,7 @@ static int cifs_commit_write(struct file *file, struct page *page, rc = 0; /* else if (rc < 0) should we set writebehind rc? */ kunmap(page); - } else { + } else { set_page_dirty(page); } @@ -1412,9 +1419,9 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) xid = GetXid(); - cFYI(1, ("Sync file - name: %s datasync: 0x%x", + cFYI(1, ("Sync file - name: %s datasync: 0x%x", dentry->d_name.name, datasync)); - + rc = filemap_fdatawrite(inode->i_mapping); if (rc == 0) CIFS_I(inode)->write_behind_rc = 0; @@ -1438,7 +1445,7 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) if (!inode) return; */ -/* fill in rpages then +/* fill in rpages then result = cifs_pagein_inode(inode, index, rpages); */ /* BB finish */ /* cFYI(1, ("rpages is %d for sync page of Index %ld", rpages, index)); @@ -1456,7 +1463,7 @@ int cifs_fsync(struct file *file, struct dentry *dentry, int datasync) */ int cifs_flush(struct file *file, fl_owner_t id) { - struct inode * inode = file->f_path.dentry->d_inode; + struct inode *inode = file->f_path.dentry->d_inode; int rc = 0; /* Rather than do the steps manually: @@ -1471,8 +1478,8 @@ int cifs_flush(struct file *file, fl_owner_t id) rc = filemap_fdatawrite(inode->i_mapping); if (!rc) /* reset wb rc if we were able to write out dirty pages */ CIFS_I(inode)->write_behind_rc = 0; - - cFYI(1, ("Flush inode %p file %p rc %d",inode,file,rc)); + + cFYI(1, ("Flush inode %p file %p rc %d", inode, file, rc)); return rc; } @@ -1508,13 +1515,13 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, for (total_read = 0, current_offset = read_data; read_size > total_read; total_read += bytes_read, current_offset += bytes_read) { - current_read_size = min_t(const int, read_size - total_read, + current_read_size = min_t(const int, read_size - total_read, cifs_sb->rsize); rc = -EAGAIN; smb_read_data = NULL; while (rc == -EAGAIN) { int buf_type = CIFS_NO_BUFFER; - if ((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend)) { rc = cifs_reopen_file(file, TRUE); if (rc != 0) @@ -1535,9 +1542,9 @@ ssize_t cifs_user_read(struct file *file, char __user *read_data, rc = -EFAULT; } - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; } @@ -1586,21 +1593,21 @@ static ssize_t cifs_read(struct file *file, char *read_data, size_t read_size, if ((file->f_flags & O_ACCMODE) == O_WRONLY) cFYI(1, ("attempting read on write only file instance")); - for (total_read = 0, current_offset = read_data; + for (total_read = 0, current_offset = read_data; read_size > total_read; total_read += bytes_read, current_offset += bytes_read) { current_read_size = min_t(const int, read_size - total_read, cifs_sb->rsize); /* For windows me and 9x we do not want to request more than it negotiated since it will refuse the read then */ - if((pTcon->ses) && + if ((pTcon->ses) && !(pTcon->ses->capabilities & CAP_LARGE_FILES)) { current_read_size = min_t(const int, current_read_size, pTcon->ses->server->maxBuf - 128); } rc = -EAGAIN; while (rc == -EAGAIN) { - if ((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend)) { rc = cifs_reopen_file(file, TRUE); if (rc != 0) @@ -1646,7 +1653,7 @@ int cifs_file_mmap(struct file *file, struct vm_area_struct *vma) } -static void cifs_copy_cache_pages(struct address_space *mapping, +static void cifs_copy_cache_pages(struct address_space *mapping, struct list_head *pages, int bytes_read, char *data, struct pagevec *plru_pvec) { @@ -1669,12 +1676,12 @@ static void cifs_copy_cache_pages(struct address_space *mapping, continue; } - target = kmap_atomic(page,KM_USER0); + target = kmap_atomic(page, KM_USER0); if (PAGE_CACHE_SIZE > bytes_read) { memcpy(target, data, bytes_read); /* zero the tail end of this partial page */ - memset(target + bytes_read, 0, + memset(target + bytes_read, 0, PAGE_CACHE_SIZE - bytes_read); bytes_read = 0; } else { @@ -1703,7 +1710,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; int bytes_read = 0; - unsigned int read_size,i; + unsigned int read_size, i; char *smb_read_data = NULL; struct smb_com_read_rsp *pSMBr; struct pagevec lru_pvec; @@ -1720,7 +1727,9 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, pTcon = cifs_sb->tcon; pagevec_init(&lru_pvec, 0); - +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("rpages: num pages %d", num_pages)); +#endif for (i = 0; i < num_pages; ) { unsigned contig_pages; struct page *tmp_page; @@ -1734,14 +1743,14 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* count adjacent pages that we will read into */ contig_pages = 0; - expected_index = + expected_index = list_entry(page_list->prev, struct page, lru)->index; - list_for_each_entry_reverse(tmp_page,page_list,lru) { + list_for_each_entry_reverse(tmp_page, page_list, lru) { if (tmp_page->index == expected_index) { contig_pages++; expected_index++; } else - break; + break; } if (contig_pages + i > num_pages) contig_pages = num_pages - i; @@ -1753,10 +1762,13 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* Read size needs to be in multiples of one page */ read_size = min_t(const unsigned int, read_size, cifs_sb->rsize & PAGE_CACHE_MASK); - +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("rpages: read size 0x%x contiguous pages %d", + read_size, contig_pages)); +#endif rc = -EAGAIN; while (rc == -EAGAIN) { - if ((open_file->invalidHandle) && + if ((open_file->invalidHandle) && (!open_file->closePend)) { rc = cifs_reopen_file(file, TRUE); if (rc != 0) @@ -1769,11 +1781,11 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, &bytes_read, &smb_read_data, &buf_type); /* BB more RC checks ? */ - if (rc== -EAGAIN) { + if (rc == -EAGAIN) { if (smb_read_data) { - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; } @@ -1794,10 +1806,10 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, if ((int)(bytes_read & PAGE_CACHE_MASK) != bytes_read) { i++; /* account for partial page */ - /* server copy of file can have smaller size + /* server copy of file can have smaller size than client */ - /* BB do we need to verify this common case ? - this case is ok - if we are at server EOF + /* BB do we need to verify this common case ? + this case is ok - if we are at server EOF we will hit it on next read */ /* break; */ @@ -1806,14 +1818,14 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, cFYI(1, ("No bytes read (%d) at offset %lld . " "Cleaning remaining pages from readahead list", bytes_read, offset)); - /* BB turn off caching and do new lookup on + /* BB turn off caching and do new lookup on file size at server? */ break; } if (smb_read_data) { - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; } @@ -1824,12 +1836,12 @@ static int cifs_readpages(struct file *file, struct address_space *mapping, /* need to free smb_read_data buf before exit */ if (smb_read_data) { - if(buf_type == CIFS_SMALL_BUFFER) + if (buf_type == CIFS_SMALL_BUFFER) cifs_small_buf_release(smb_read_data); - else if(buf_type == CIFS_LARGE_BUFFER) + else if (buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(smb_read_data); smb_read_data = NULL; - } + } FreeXid(xid); return rc; @@ -1844,26 +1856,26 @@ static int cifs_readpage_worker(struct file *file, struct page *page, page_cache_get(page); read_data = kmap(page); /* for reads over a certain size could initiate async read ahead */ - + rc = cifs_read(file, read_data, PAGE_CACHE_SIZE, poffset); - + if (rc < 0) goto io_error; else - cFYI(1, ("Bytes read %d",rc)); - + cFYI(1, ("Bytes read %d", rc)); + file->f_path.dentry->d_inode->i_atime = current_fs_time(file->f_path.dentry->d_inode->i_sb); - + if (PAGE_CACHE_SIZE > rc) memset(read_data + rc, 0, PAGE_CACHE_SIZE - rc); flush_dcache_page(page); SetPageUptodate(page); rc = 0; - + io_error: - kunmap(page); + kunmap(page); page_cache_release(page); return rc; } @@ -1881,7 +1893,7 @@ static int cifs_readpage(struct file *file, struct page *page) return -EBADF; } - cFYI(1, ("readpage %p at offset %d 0x%x\n", + cFYI(1, ("readpage %p at offset %d 0x%x\n", page, (int)offset, (int)offset)); rc = cifs_readpage_worker(file, page, &offset); @@ -1895,7 +1907,7 @@ static int cifs_readpage(struct file *file, struct page *page) /* We do not want to update the file size from server for inodes open for write - to avoid races with writepage extending the file - in the future we could consider allowing - refreshing the inode only on increases in the file size + refreshing the inode only on increases in the file size but this is tricky to do without racing with writebehind page caching in the current Linux kernel design */ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) @@ -1904,8 +1916,8 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) if (cifsInode) open_file = find_writable_file(cifsInode); - - if(open_file) { + + if (open_file) { struct cifs_sb_info *cifs_sb; /* there is not actually a write pending so let @@ -1915,12 +1927,12 @@ int is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file) cifs_sb = CIFS_SB(cifsInode->vfs_inode.i_sb); if ( cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO ) { - /* since no page cache to corrupt on directio + /* since no page cache to corrupt on directio we can change size safely */ return 1; } - if(i_size_read(&cifsInode->vfs_inode) < end_of_file) + if (i_size_read(&cifsInode->vfs_inode) < end_of_file) return 1; return 0; @@ -1935,7 +1947,7 @@ static int cifs_prepare_write(struct file *file, struct page *page, loff_t i_size; loff_t offset; - cFYI(1, ("prepare write for page %p from %d to %d",page,from,to)); + cFYI(1, ("prepare write for page %p from %d to %d", page, from, to)); if (PageUptodate(page)) return 0; @@ -1955,14 +1967,7 @@ static int cifs_prepare_write(struct file *file, struct page *page, * We don't need to read data beyond the end of the file. * zero it, and set the page uptodate */ - void *kaddr = kmap_atomic(page, KM_USER0); - - if (from) - memset(kaddr, 0, from); - if (to < PAGE_CACHE_SIZE) - memset(kaddr + to, 0, PAGE_CACHE_SIZE - to); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); + simple_prepare_write(file, page, from, to); SetPageUptodate(page); } else if ((file->f_flags & O_ACCMODE) != O_WRONLY) { /* might as well read a page, it is fast enough */ @@ -1974,8 +1979,8 @@ static int cifs_prepare_write(struct file *file, struct page *page, this will be written out by commit_write so is fine */ } - /* we do not need to pass errors back - e.g. if we do not have read access to the file + /* we do not need to pass errors back + e.g. if we do not have read access to the file because cifs_commit_write will do the right thing. -- shaggy */ return 0; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index f0ff12b3f398..dd4167762a8e 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -57,14 +57,14 @@ int cifs_get_inode_info_unix(struct inode **pinode, if (tmp_path == NULL) { return -ENOMEM; } - /* have to skip first of the double backslash of + /* have to skip first of the double backslash of UNC name */ strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); strncat(tmp_path, search_path, MAX_PATHCONF); rc = connect_to_dfs_path(xid, pTcon->ses, /* treename + */ tmp_path, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(tmp_path); @@ -81,7 +81,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, /* get new inode */ if (*pinode == NULL) { *pinode = new_inode(sb); - if (*pinode == NULL) + if (*pinode == NULL) return -ENOMEM; /* Is an i_ino of zero legal? */ /* Are there sanity checks we can use to ensure that @@ -92,7 +92,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, } /* note ino incremented to unique num in new_inode */ if (sb->s_flags & MS_NOATIME) (*pinode)->i_flags |= S_NOATIME | S_NOCMTIME; - + insert_inode_hash(*pinode); } @@ -103,7 +103,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, cifsInfo->time = jiffies; cFYI(1, ("New time %ld", cifsInfo->time)); /* this is ok to set on every inode revalidate */ - atomic_set(&cifsInfo->inUse,1); + atomic_set(&cifsInfo->inUse, 1); inode->i_atime = cifs_NTtimeToUnix(le64_to_cpu(findData.LastAccessTime)); @@ -114,8 +114,8 @@ int cifs_get_inode_info_unix(struct inode **pinode, cifs_NTtimeToUnix(le64_to_cpu(findData.LastStatusChange)); inode->i_mode = le64_to_cpu(findData.Permissions); /* since we set the inode type below we need to mask off - to avoid strange results if bits set above */ - inode->i_mode &= ~S_IFMT; + to avoid strange results if bits set above */ + inode->i_mode &= ~S_IFMT; if (type == UNIX_FILE) { inode->i_mode |= S_IFREG; } else if (type == UNIX_SYMLINK) { @@ -137,9 +137,9 @@ int cifs_get_inode_info_unix(struct inode **pinode, } else { /* safest to call it a file if we do not know */ inode->i_mode |= S_IFREG; - cFYI(1,("unknown type %d",type)); + cFYI(1, ("unknown type %d", type)); } - + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) inode->i_uid = cifs_sb->mnt_uid; else @@ -149,7 +149,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, inode->i_gid = cifs_sb->mnt_gid; else inode->i_gid = le64_to_cpu(findData.Gid); - + inode->i_nlink = le64_to_cpu(findData.Nlinks); spin_lock(&inode->i_lock); @@ -183,17 +183,17 @@ int cifs_get_inode_info_unix(struct inode **pinode, inode->i_op = &cifs_file_inode_ops; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) - inode->i_fop = + inode->i_fop = &cifs_file_direct_nobrl_ops; else inode->i_fop = &cifs_file_direct_ops; } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) inode->i_fop = &cifs_file_nobrl_ops; - else /* not direct, send byte range locks */ + else /* not direct, send byte range locks */ inode->i_fop = &cifs_file_ops; /* check if server can support readpages */ - if (pTcon->ses->server->maxBuf < + if (pTcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else @@ -215,7 +215,7 @@ int cifs_get_inode_info_unix(struct inode **pinode, return rc; } -static int decode_sfu_inode(struct inode * inode, __u64 size, +static int decode_sfu_inode(struct inode *inode, __u64 size, const unsigned char *path, struct cifs_sb_info *cifs_sb, int xid) { @@ -225,7 +225,7 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, struct cifsTconInfo *pTcon = cifs_sb->tcon; char buf[24]; unsigned int bytes_read; - char * pbuf; + char *pbuf; pbuf = buf; @@ -235,22 +235,22 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, } else if (size < 8) { return -EINVAL; /* EOPNOTSUPP? */ } - + rc = CIFSSMBOpen(xid, pTcon, path, FILE_OPEN, GENERIC_READ, CREATE_NOT_DIR, &netfid, &oplock, NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { int buf_type = CIFS_NO_BUFFER; /* Read header */ rc = CIFSSMBRead(xid, pTcon, - netfid, + netfid, 24 /* length */, 0 /* offset */, &bytes_read, &pbuf, &buf_type); if ((rc == 0) && (bytes_read >= 8)) { if (memcmp("IntxBLK", pbuf, 8) == 0) { - cFYI(1,("Block device")); + cFYI(1, ("Block device")); inode->i_mode |= S_IFBLK; if (bytes_read == 24) { /* we have enough to decode dev num */ @@ -261,7 +261,7 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, inode->i_rdev = MKDEV(mjr, mnr); } } else if (memcmp("IntxCHR", pbuf, 8) == 0) { - cFYI(1,("Char device")); + cFYI(1, ("Char device")); inode->i_mode |= S_IFCHR; if (bytes_read == 24) { /* we have enough to decode dev num */ @@ -270,27 +270,26 @@ static int decode_sfu_inode(struct inode * inode, __u64 size, mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); inode->i_rdev = MKDEV(mjr, mnr); - } + } } else if (memcmp("IntxLNK", pbuf, 7) == 0) { - cFYI(1,("Symlink")); + cFYI(1, ("Symlink")); inode->i_mode |= S_IFLNK; } else { inode->i_mode |= S_IFREG; /* file? */ - rc = -EOPNOTSUPP; + rc = -EOPNOTSUPP; } } else { inode->i_mode |= S_IFREG; /* then it is a file */ - rc = -EOPNOTSUPP; /* or some unknown SFU type */ - } + rc = -EOPNOTSUPP; /* or some unknown SFU type */ + } CIFSSMBClose(xid, pTcon, netfid); } return rc; - } #define SFBITS_MASK (S_ISVTX | S_ISGID | S_ISUID) /* SETFILEBITS valid bits */ -static int get_sfu_uid_mode(struct inode * inode, +static int get_sfu_uid_mode(struct inode *inode, const unsigned char *path, struct cifs_sb_info *cifs_sb, int xid) { @@ -301,15 +300,15 @@ static int get_sfu_uid_mode(struct inode * inode, rc = CIFSSMBQueryEA(xid, cifs_sb->tcon, path, "SETFILEBITS", ea_value, 4 /* size of buf */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc < 0) return (int)rc; else if (rc > 3) { mode = le32_to_cpu(*((__le32 *)ea_value)); - inode->i_mode &= ~SFBITS_MASK; - cFYI(1,("special bits 0%o org mode 0%o", mode, inode->i_mode)); + inode->i_mode &= ~SFBITS_MASK; + cFYI(1, ("special bits 0%o org mode 0%o", mode, inode->i_mode)); inode->i_mode = (mode & SFBITS_MASK) | inode->i_mode; - cFYI(1,("special mode bits 0%o", mode)); + cFYI(1, ("special mode bits 0%o", mode)); return 0; } else { return 0; @@ -317,8 +316,6 @@ static int get_sfu_uid_mode(struct inode * inode, #else return -EOPNOTSUPP; #endif - - } int cifs_get_inode_info(struct inode **pinode, @@ -334,11 +331,11 @@ int cifs_get_inode_info(struct inode **pinode, int adjustTZ = FALSE; pTcon = cifs_sb->tcon; - cFYI(1,("Getting info on %s", search_path)); + cFYI(1, ("Getting info on %s", search_path)); if ((pfindData == NULL) && (*pinode != NULL)) { if (CIFS_I(*pinode)->clientCanCacheRead) { - cFYI(1,("No need to revalidate cached inode sizes")); + cFYI(1, ("No need to revalidate cached inode sizes")); return rc; } } @@ -359,12 +356,11 @@ int cifs_get_inode_info(struct inode **pinode, failed at least once - set flag in tcon or mount */ if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) { rc = SMBQueryInformation(xid, pTcon, search_path, - pfindData, cifs_sb->local_nls, + pfindData, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); adjustTZ = TRUE; } - } /* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */ if (rc) { @@ -384,8 +380,8 @@ int cifs_get_inode_info(struct inode **pinode, strncat(tmp_path, search_path, MAX_PATHCONF); rc = connect_to_dfs_path(xid, pTcon->ses, /* treename + */ tmp_path, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(tmp_path); /* BB fix up inode etc. */ @@ -419,17 +415,17 @@ int cifs_get_inode_info(struct inode **pinode, there Windows server or network appliances for which IndexNumber field is not guaranteed unique? */ - if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM){ + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { int rc1 = 0; __u64 inode_num; - rc1 = CIFSGetSrvInodeNumber(xid, pTcon, - search_path, &inode_num, + rc1 = CIFSGetSrvInodeNumber(xid, pTcon, + search_path, &inode_num, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc1) { - cFYI(1,("GetSrvInodeNum rc %d", rc1)); + cFYI(1, ("GetSrvInodeNum rc %d", rc1)); /* BB EOPNOSUPP disable SERVER_INUM? */ } else /* do we need cast or hash to ino? */ (*pinode)->i_ino = inode_num; @@ -463,7 +459,7 @@ int cifs_get_inode_info(struct inode **pinode, cFYI(0, ("Attributes came in as 0x%x", attr)); if (adjustTZ && (pTcon->ses) && (pTcon->ses->server)) { inode->i_ctime.tv_sec += pTcon->ses->server->timeAdj; - inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj; + inode->i_mtime.tv_sec += pTcon->ses->server->timeAdj; } /* set default mode. will override for dirs below */ @@ -471,8 +467,9 @@ int cifs_get_inode_info(struct inode **pinode, /* new inode, can safely set these fields */ inode->i_mode = cifs_sb->mnt_file_mode; else /* since we set the inode type below we need to mask off - to avoid strange results if type changes and both get orred in */ - inode->i_mode &= ~S_IFMT; + to avoid strange results if type changes and both + get orred in */ + inode->i_mode &= ~S_IFMT; /* if (attr & ATTR_REPARSE) */ /* We no longer handle these as symlinks because we could not follow them due to the absolute path with drive letter */ @@ -490,13 +487,13 @@ int cifs_get_inode_info(struct inode **pinode, /* BB Finish for SFU style symlinks and devices */ } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && (cifsInfo->cifsAttrs & ATTR_SYSTEM)) { - if (decode_sfu_inode(inode, + if (decode_sfu_inode(inode, le64_to_cpu(pfindData->EndOfFile), search_path, cifs_sb, xid)) { - cFYI(1,("Unrecognized sfu inode type")); + cFYI(1, ("Unrecognized sfu inode type")); } - cFYI(1,("sfu mode 0%o",inode->i_mode)); + cFYI(1, ("sfu mode 0%o", inode->i_mode)); } else { inode->i_mode |= S_IFREG; /* treat the dos attribute of read-only as read-only @@ -512,12 +509,12 @@ int cifs_get_inode_info(struct inode **pinode, /* BB add code here - validate if device or weird share or device type? */ } - + spin_lock(&inode->i_lock); if (is_size_safe_to_change(cifsInfo, le64_to_cpu(pfindData->EndOfFile))) { /* can not safely shrink the file size here if the client is writing to it due to potential races */ - i_size_write(inode,le64_to_cpu(pfindData->EndOfFile)); + i_size_write(inode, le64_to_cpu(pfindData->EndOfFile)); /* 512 bytes (2**9) is the fake blocksize that must be used for this calculation */ @@ -528,7 +525,7 @@ int cifs_get_inode_info(struct inode **pinode, inode->i_nlink = le32_to_cpu(pfindData->NumberOfLinks); - /* BB fill in uid and gid here? with help from winbind? + /* BB fill in uid and gid here? with help from winbind? or retrieve from NTFS stream extended attribute */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { /* fill in uid, gid, mode from server ACL */ @@ -540,7 +537,7 @@ int cifs_get_inode_info(struct inode **pinode, inode->i_gid = cifs_sb->mnt_gid; /* set so we do not keep refreshing these fields with bad data after user has changed them in memory */ - atomic_set(&cifsInfo->inUse,1); + atomic_set(&cifsInfo->inUse, 1); } if (S_ISREG(inode->i_mode)) { @@ -557,7 +554,7 @@ int cifs_get_inode_info(struct inode **pinode, else /* not direct, send byte range locks */ inode->i_fop = &cifs_file_ops; - if (pTcon->ses->server->maxBuf < + if (pTcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE) inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else @@ -586,10 +583,11 @@ void cifs_read_inode(struct inode *inode) cifs_sb = CIFS_SB(inode->i_sb); xid = GetXid(); - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) - cifs_get_inode_info_unix(&inode, "", inode->i_sb,xid); + + if (cifs_sb->tcon->unix_ext) + cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid); else - cifs_get_inode_info(&inode, "", NULL, inode->i_sb,xid); + cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid); /* can not call macro FreeXid here since in a void func */ _FreeXid(xid); } @@ -623,9 +621,21 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) FreeXid(xid); return -ENOMEM; } - rc = CIFSSMBDelFile(xid, pTcon, full_path, cifs_sb->local_nls, + + if ((pTcon->ses->capabilities & CAP_UNIX) && + (CIFS_UNIX_POSIX_PATH_OPS_CAP & + le64_to_cpu(pTcon->fsUnixInfo.Capability))) { + rc = CIFSPOSIXDelFile(xid, pTcon, full_path, + SMB_POSIX_UNLINK_FILE_TARGET, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + cFYI(1, ("posix del rc %d", rc)); + if ((rc == 0) || (rc == -ENOENT)) + goto psx_del_no_retry; + } + rc = CIFSSMBDelFile(xid, pTcon, full_path, cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); +psx_del_no_retry: if (!rc) { if (direntry->d_inode) drop_nlink(direntry->d_inode); @@ -638,12 +648,12 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, DELETE, CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE, &netfid, &oplock, NULL, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { CIFSSMBRenameOpenFile(xid, pTcon, netfid, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); CIFSSMBClose(xid, pTcon, netfid); if (direntry->d_inode) @@ -659,7 +669,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) rc = CIFSSMBSetTimes(xid, pTcon, full_path, pinfo_buf, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); else rc = -EOPNOTSUPP; @@ -670,7 +680,7 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) /* rc = CIFSSMBSetAttrLegacy(xid, pTcon, full_path, (__u16)ATTR_NORMAL, - cifs_sb->local_nls); + cifs_sb->local_nls); For some strange reason it seems that NT4 eats the old setattr call without actually setting the attributes so on to the third attempted workaround @@ -683,9 +693,9 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) FILE_WRITE_ATTRIBUTES, 0, &netfid, &oplock, NULL, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { rc = CIFSSMBSetFileTimes(xid, pTcon, pinfo_buf, netfid); @@ -694,10 +704,10 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) } kfree(pinfo_buf); } - if (rc==0) { - rc = CIFSSMBDelFile(xid, pTcon, full_path, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + if (rc == 0) { + rc = CIFSSMBDelFile(xid, pTcon, full_path, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (!rc) { if (direntry->d_inode) @@ -711,10 +721,10 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE, &netfid, &oplock, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { CIFSSMBRenameOpenFile(xid, pTcon, netfid, NULL, cifs_sb->local_nls, @@ -773,8 +783,8 @@ static void posix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_mode = le64_to_cpu(pData->Permissions); /* since we set the inode type below we need to mask off type - to avoid strange results if bits above were corrupt */ - tmp_inode->i_mode &= ~S_IFMT; + to avoid strange results if bits above were corrupt */ + tmp_inode->i_mode &= ~S_IFMT; if (type == UNIX_FILE) { *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; @@ -804,11 +814,11 @@ static void posix_fill_in_inode(struct inode *tmp_inode, /* safest to just call it a file */ *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; - cFYI(1,("unknown inode type %d",type)); + cFYI(1, ("unknown inode type %d", type)); } #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("object type: %d", type)); + cFYI(1, ("object type: %d", type)); #endif tmp_inode->i_uid = le64_to_cpu(pData->Uid); tmp_inode->i_gid = le64_to_cpu(pData->Gid); @@ -816,7 +826,7 @@ static void posix_fill_in_inode(struct inode *tmp_inode, spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the + /* can not safely change the file size here if the client is writing to it due to potential races */ i_size_write(tmp_inode, end_of_file); @@ -830,27 +840,28 @@ static void posix_fill_in_inode(struct inode *tmp_inode, cFYI(1, ("File inode")); tmp_inode->i_op = &cifs_file_inode_ops; - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; else tmp_inode->i_fop = &cifs_file_direct_ops; - - } else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) + + } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) tmp_inode->i_fop = &cifs_file_nobrl_ops; else tmp_inode->i_fop = &cifs_file_ops; - if((cifs_sb->tcon) && (cifs_sb->tcon->ses) && - (cifs_sb->tcon->ses->server->maxBuf < + if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && + (cifs_sb->tcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else tmp_inode->i_data.a_ops = &cifs_addr_ops; - if(isNewInode) - return; /* No sense invalidating pages for new inode since we - have not started caching readahead file data yet */ + if (isNewInode) + return; /* No sense invalidating pages for new inode + since we we have not started caching + readahead file data yet */ if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && (local_size == tmp_inode->i_size)) { @@ -869,10 +880,10 @@ static void posix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_op = &cifs_symlink_inode_ops; /* tmp_inode->i_fop = *//* do not need to set to anything */ } else { - cFYI(1, ("Special inode")); + cFYI(1, ("Special inode")); init_special_inode(tmp_inode, tmp_inode->i_mode, tmp_inode->i_rdev); - } + } } int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) @@ -896,22 +907,22 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) FreeXid(xid); return -ENOMEM; } - - if((pTcon->ses->capabilities & CAP_UNIX) && - (CIFS_UNIX_POSIX_PATH_OPS_CAP & + + if ((pTcon->ses->capabilities & CAP_UNIX) && + (CIFS_UNIX_POSIX_PATH_OPS_CAP & le64_to_cpu(pTcon->fsUnixInfo.Capability))) { u32 oplock = 0; - FILE_UNIX_BASIC_INFO * pInfo = + FILE_UNIX_BASIC_INFO * pInfo = kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); - if(pInfo == NULL) { + if (pInfo == NULL) { rc = -ENOMEM; goto mkdir_out; } - + rc = CIFSPOSIXCreate(xid, pTcon, SMB_O_DIRECTORY | SMB_O_CREAT, mode, NULL /* netfid */, pInfo, &oplock, - full_path, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + full_path, cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc) { cFYI(1, ("posix mkdir returned 0x%x", rc)); @@ -919,8 +930,9 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) } else { int obj_type; if (pInfo->Type == -1) /* no return info - go query */ - goto mkdir_get_info; -/*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need to set uid/gid */ + goto mkdir_get_info; +/*BB check (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID ) to see if need + to set uid/gid */ inc_nlink(inode); if (pTcon->nocase) direntry->d_op = &cifs_ci_dentry_ops; @@ -937,7 +949,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) newinode->i_ino = (unsigned long)pInfo->UniqueId; } /* note ino incremented to unique num in new_inode */ - if(inode->i_sb->s_flags & MS_NOATIME) + if (inode->i_sb->s_flags & MS_NOATIME) newinode->i_flags |= S_NOATIME | S_NOCMTIME; newinode->i_nlink = 2; @@ -949,18 +961,18 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) posix_fill_in_inode(direntry->d_inode, pInfo, &obj_type, 1 /* NewInode */); #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("instantiated dentry %p %s to inode %p", + cFYI(1, ("instantiated dentry %p %s to inode %p", direntry, direntry->d_name.name, newinode)); - if(newinode->i_nlink != 2) - cFYI(1,("unexpected number of links %d", + if (newinode->i_nlink != 2) + cFYI(1, ("unexpected number of links %d", newinode->i_nlink)); #endif } kfree(pInfo); goto mkdir_out; - } - + } + /* BB add setting the equivalent of mode via CreateX w/ACLs */ rc = CIFSSMBMkDir(xid, pTcon, full_path, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); @@ -968,14 +980,14 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) cFYI(1, ("cifs_mkdir returned 0x%x", rc)); d_drop(direntry); } else { -mkdir_get_info: +mkdir_get_info: inc_nlink(inode); - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newinode, full_path, - inode->i_sb,xid); + inode->i_sb, xid); else rc = cifs_get_inode_info(&newinode, full_path, NULL, - inode->i_sb,xid); + inode->i_sb, xid); if (pTcon->nocase) direntry->d_op = &cifs_ci_dentry_ops; @@ -983,10 +995,10 @@ mkdir_get_info: direntry->d_op = &cifs_dentry_ops; d_instantiate(direntry, newinode); /* setting nlink not necessary except in cases where we - * failed to get it from the server or was set bogus */ + * failed to get it from the server or was set bogus */ if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2)) - direntry->d_inode->i_nlink = 2; - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) { + direntry->d_inode->i_nlink = 2; + if (pTcon->unix_ext) { mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, @@ -1002,27 +1014,27 @@ mkdir_get_info: mode, (__u64)-1, (__u64)-1, 0 /* dev_t */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } } else { /* BB to be implemented via Windows secrty descriptors eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, -1, -1, local_nls); */ - if(direntry->d_inode) { + if (direntry->d_inode) { direntry->d_inode->i_mode = mode; direntry->d_inode->i_mode |= S_IFDIR; - if(cifs_sb->mnt_cifs_flags & + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { - direntry->d_inode->i_uid = + direntry->d_inode->i_uid = current->fsuid; - direntry->d_inode->i_gid = + direntry->d_inode->i_gid = current->fsgid; } } } } -mkdir_out: +mkdir_out: kfree(full_path); FreeXid(xid); return rc; @@ -1056,7 +1068,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry) if (!rc) { drop_nlink(inode); spin_lock(&direntry->d_inode->i_lock); - i_size_write(direntry->d_inode,0); + i_size_write(direntry->d_inode, 0); clear_nlink(direntry->d_inode); spin_unlock(&direntry->d_inode->i_lock); } @@ -1119,9 +1131,9 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); if (info_buf_source != NULL) { info_buf_target = info_buf_source + 1; - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName, - info_buf_source, + info_buf_source, cifs_sb_source->local_nls, cifs_sb_source->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); @@ -1171,12 +1183,12 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry, might not right be right access to request */ rc = CIFSSMBOpen(xid, pTcon, fromName, FILE_OPEN, GENERIC_READ, CREATE_NOT_DIR, &netfid, &oplock, NULL, - cifs_sb_source->local_nls, - cifs_sb_source->mnt_cifs_flags & + cifs_sb_source->local_nls, + cifs_sb_source->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { rc = CIFSSMBRenameOpenFile(xid, pTcon, netfid, toName, - cifs_sb_source->local_nls, + cifs_sb_source->local_nls, cifs_sb_source->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); CIFSSMBClose(xid, pTcon, netfid); @@ -1247,9 +1259,9 @@ int cifs_revalidate(struct dentry *direntry) local_mtime = direntry->d_inode->i_mtime; local_size = direntry->d_inode->i_size; - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) { + if (cifs_sb->tcon->unix_ext) { rc = cifs_get_inode_info_unix(&direntry->d_inode, full_path, - direntry->d_sb,xid); + direntry->d_sb, xid); if (rc) { cFYI(1, ("error on getting revalidate info %d", rc)); /* if (rc != -ENOENT) @@ -1258,7 +1270,7 @@ int cifs_revalidate(struct dentry *direntry) } } else { rc = cifs_get_inode_info(&direntry->d_inode, full_path, NULL, - direntry->d_sb,xid); + direntry->d_sb, xid); if (rc) { cFYI(1, ("error on getting revalidate info %d", rc)); /* if (rc != -ENOENT) @@ -1271,7 +1283,7 @@ int cifs_revalidate(struct dentry *direntry) /* if not oplocked, we invalidate inode pages if mtime or file size had changed on server */ - if (timespec_equal(&local_mtime,&direntry->d_inode->i_mtime) && + if (timespec_equal(&local_mtime, &direntry->d_inode->i_mtime) && (local_size == direntry->d_inode->i_size)) { cFYI(1, ("cifs_revalidate - inode unchanged")); } else { @@ -1298,7 +1310,7 @@ int cifs_revalidate(struct dentry *direntry) if (invalidate_inode) { /* shrink_dcache not necessary now that cifs dentry ops are exported for negative dentries */ -/* if(S_ISDIR(direntry->d_inode->i_mode)) +/* if (S_ISDIR(direntry->d_inode->i_mode)) shrink_dcache_parent(direntry); */ if (S_ISREG(direntry->d_inode->i_mode)) { if (direntry->d_inode->i_mapping) @@ -1313,7 +1325,7 @@ int cifs_revalidate(struct dentry *direntry) } } /* mutex_unlock(&direntry->d_inode->i_mutex); */ - + kfree(full_path); FreeXid(xid); return rc; @@ -1335,23 +1347,19 @@ static int cifs_truncate_page(struct address_space *mapping, loff_t from) pgoff_t index = from >> PAGE_CACHE_SHIFT; unsigned offset = from & (PAGE_CACHE_SIZE - 1); struct page *page; - char *kaddr; int rc = 0; page = grab_cache_page(mapping, index); if (!page) return -ENOMEM; - kaddr = kmap_atomic(page, KM_USER0); - memset(kaddr + offset, 0, PAGE_CACHE_SIZE - offset); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); + zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0); unlock_page(page); page_cache_release(page); return rc; } -static int cifs_vmtruncate(struct inode * inode, loff_t offset) +static int cifs_vmtruncate(struct inode *inode, loff_t offset) { struct address_space *mapping = inode->i_mapping; unsigned long limit; @@ -1424,13 +1432,13 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) { /* check if we have permission to change attrs */ rc = inode_change_ok(direntry->d_inode, attrs); - if(rc < 0) { + if (rc < 0) { FreeXid(xid); return rc; } else rc = 0; } - + full_path = build_path_from_dentry(direntry); if (full_path == NULL) { FreeXid(xid); @@ -1459,16 +1467,16 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size, nfid, npid, FALSE); atomic_dec(&open_file->wrtPending); - cFYI(1,("SetFSize for attrs rc = %d", rc)); - if((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { + cFYI(1, ("SetFSize for attrs rc = %d", rc)); + if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { int bytes_written; rc = CIFSSMBWrite(xid, pTcon, nfid, 0, attrs->ia_size, &bytes_written, NULL, NULL, 1 /* 45 seconds */); - cFYI(1,("Wrt seteof rc %d", rc)); + cFYI(1, ("Wrt seteof rc %d", rc)); } - } else + } else rc = -EINVAL; if (rc != 0) { @@ -1478,11 +1486,11 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) it by handle */ rc = CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size, FALSE, - cifs_sb->local_nls, + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); cFYI(1, ("SetEOF by path (setattrs) rc = %d", rc)); - if((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { + if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { __u16 netfid; int oplock = FALSE; @@ -1493,14 +1501,14 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { int bytes_written; rc = CIFSSMBWrite(xid, pTcon, netfid, 0, attrs->ia_size, &bytes_written, NULL, NULL, 1 /* 45 sec */); - cFYI(1,("wrt seteof rc %d",rc)); + cFYI(1, ("wrt seteof rc %d", rc)); CIFSSMBClose(xid, pTcon, netfid); } @@ -1517,7 +1525,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) rc = cifs_vmtruncate(direntry->d_inode, attrs->ia_size); cifs_truncate_page(direntry->d_inode->i_mapping, direntry->d_inode->i_size); - } else + } else goto cifs_setattr_exit; } if (attrs->ia_valid & ATTR_UID) { @@ -1535,11 +1543,11 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) mode = attrs->ia_mode; } - if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) + if ((pTcon->unix_ext) && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID))) rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, uid, gid, 0 /* dev_t */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); else if (attrs->ia_valid & ATTR_MODE) { rc = 0; @@ -1559,7 +1567,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs & (~ATTR_READONLY)); /* Windows ignores set to zero */ - if(time_buf.Attributes == 0) + if (time_buf.Attributes == 0) time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL); } /* BB to be implemented - @@ -1585,7 +1593,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) stamps are changed explicitly (i.e. by utime() since we would then have a mix of client and server times */ - + if (set_time && (attrs->ia_valid & ATTR_CTIME)) { set_time = TRUE; /* Although Samba throws this field away @@ -1624,7 +1632,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc==0) { + if (rc == 0) { rc = CIFSSMBSetFileTimes(xid, pTcon, &time_buf, netfid); CIFSSMBClose(xid, pTcon, netfid); @@ -1634,7 +1642,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) granularity */ /* rc = CIFSSMBSetTimesLegacy(xid, pTcon, full_path, - &time_buf, cifs_sb->local_nls); */ + &time_buf, cifs_sb->local_nls); */ } } /* Even if error on time set, no sense failing the call if @@ -1642,7 +1650,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) and this check ensures that we are not being called from sys_utimes in which case we ought to fail the call back to the user when the server rejects the call */ - if((rc) && (attrs->ia_valid & + if ((rc) && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE))) rc = 0; } diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c index a414f1775ae0..d24fe6880a04 100644 --- a/fs/cifs/ioctl.c +++ b/fs/cifs/ioctl.c @@ -3,7 +3,7 @@ * * vfs operations that deal with io control * - * Copyright (C) International Business Machines Corp., 2005 + * Copyright (C) International Business Machines Corp., 2005,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -30,7 +30,7 @@ #define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2) -int cifs_ioctl (struct inode * inode, struct file * filep, +int cifs_ioctl (struct inode *inode, struct file *filep, unsigned int command, unsigned long arg) { int rc = -ENOTTY; /* strange error - but the precedent */ diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 6baea85d726e..6a85ef7b8797 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -50,32 +50,33 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, fromName = build_path_from_dentry(old_file); toName = build_path_from_dentry(direntry); - if((fromName == NULL) || (toName == NULL)) { + if ((fromName == NULL) || (toName == NULL)) { rc = -ENOMEM; goto cifs_hl_exit; } - if (cifs_sb_target->tcon->ses->capabilities & CAP_UNIX) +/* if (cifs_sb_target->tcon->ses->capabilities & CAP_UNIX)*/ + if (pTcon->unix_ext) rc = CIFSUnixCreateHardLink(xid, pTcon, fromName, toName, - cifs_sb_target->local_nls, + cifs_sb_target->local_nls, cifs_sb_target->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); else { rc = CIFSCreateHardLink(xid, pTcon, fromName, toName, - cifs_sb_target->local_nls, + cifs_sb_target->local_nls, cifs_sb_target->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if((rc == -EIO) || (rc == -EINVAL)) - rc = -EOPNOTSUPP; + if ((rc == -EIO) || (rc == -EINVAL)) + rc = -EOPNOTSUPP; } d_drop(direntry); /* force new lookup from server of target */ /* if source file is cached (oplocked) revalidate will not go to server until the file is closed or oplock broken so update nlinks locally */ - if(old_file->d_inode) { + if (old_file->d_inode) { cifsInode = CIFS_I(old_file->d_inode); - if(rc == 0) { + if (rc == 0) { old_file->d_inode->i_nlink++; /* BB should we make this contingent on superblock flag NOATIME? */ /* old_file->d_inode->i_ctime = CURRENT_TIME;*/ @@ -84,14 +85,14 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, to set the parent dir cifs inode time to zero to force revalidate (faster) for it too? */ } - /* if not oplocked will force revalidate to get info + /* if not oplocked will force revalidate to get info on source file from srv */ cifsInode->time = 0; - /* Will update parent dir timestamps from srv within a second. + /* Will update parent dir timestamps from srv within a second. Would it really be worth it to set the parent dir (cifs inode) time field to zero to force revalidate on parent - directory faster ie + directory faster ie CIFS_I(inode)->time = 0; */ } @@ -109,7 +110,7 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd) int rc = -EACCES; int xid; char *full_path = NULL; - char * target_path = ERR_PTR(-ENOMEM); + char *target_path = ERR_PTR(-ENOMEM); struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; @@ -129,13 +130,19 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd) goto out; } -/* BB add read reparse point symlink code and Unix extensions symlink code here BB */ + /* We could change this to: + if (pTcon->unix_ext) + but there does not seem any point in refusing to + get symlink info if we can, even if unix extensions + turned off for this mount */ + if (pTcon->ses->capabilities & CAP_UNIX) rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path, target_path, PATH_MAX-1, cifs_sb->local_nls); else { + /* BB add read reparse point symlink code here */ /* rc = CIFSSMBQueryReparseLinkInfo */ /* BB Add code to Query ReparsePoint info */ /* BB Add MAC style xsymlink check here if enabled */ @@ -176,7 +183,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -185,19 +192,20 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) cFYI(1, ("symname is %s", symname)); /* BB what if DFS and this volume is on different share? BB */ - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = CIFSUnixCreateSymLink(xid, pTcon, full_path, symname, cifs_sb->local_nls); /* else - rc = CIFSCreateReparseSymLink(xid, pTcon, fromName, toName,cifs_sb_target->local_nls); */ + rc = CIFSCreateReparseSymLink(xid, pTcon, fromName, toName, + cifs_sb_target->local_nls); */ if (rc == 0) { - if (pTcon->ses->capabilities & CAP_UNIX) + if (pTcon->unix_ext) rc = cifs_get_inode_info_unix(&newinode, full_path, - inode->i_sb,xid); + inode->i_sb, xid); else rc = cifs_get_inode_info(&newinode, full_path, NULL, - inode->i_sb,xid); + inode->i_sb, xid); if (rc != 0) { cFYI(1, ("Create symlink ok, getinodeinfo fail rc = %d", @@ -226,9 +234,9 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; char *full_path = NULL; - char *tmp_path = NULL; - char * tmpbuffer; - unsigned char * referrals = NULL; + char *tmp_path = NULL; + char *tmpbuffer; + unsigned char *referrals = NULL; int num_referrals = 0; int len; __u16 fid; @@ -237,13 +245,13 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) cifs_sb = CIFS_SB(inode->i_sb); pTcon = cifs_sb->tcon; -/* BB would it be safe against deadlock to grab this sem +/* BB would it be safe against deadlock to grab this sem even though rename itself grabs the sem and calls lookup? */ /* mutex_lock(&inode->i_sb->s_vfs_rename_mutex);*/ full_path = build_path_from_dentry(direntry); /* mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);*/ - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -251,70 +259,80 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) cFYI(1, ("Full path: %s inode = 0x%p pBuffer = 0x%p buflen = %d", full_path, inode, pBuffer, buflen)); - if(buflen > PATH_MAX) + if (buflen > PATH_MAX) len = PATH_MAX; else len = buflen; - tmpbuffer = kmalloc(len,GFP_KERNEL); - if(tmpbuffer == NULL) { + tmpbuffer = kmalloc(len, GFP_KERNEL); + if (tmpbuffer == NULL) { kfree(full_path); FreeXid(xid); return -ENOMEM; } -/* BB add read reparse point symlink code and Unix extensions symlink code here BB */ +/* BB add read reparse point symlink code and + Unix extensions symlink code here BB */ +/* We could disable this based on pTcon->unix_ext flag instead ... but why? */ if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path, tmpbuffer, len - 1, cifs_sb->local_nls); else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { - cERROR(1,("SFU style symlinks not implemented yet")); + cERROR(1, ("SFU style symlinks not implemented yet")); /* add open and read as in fs/cifs/inode.c */ - } else { rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, GENERIC_READ, - OPEN_REPARSE_POINT,&fid, &oplock, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + OPEN_REPARSE_POINT, &fid, &oplock, NULL, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - if(!rc) { + if (!rc) { rc = CIFSSMBQueryReparseLinkInfo(xid, pTcon, full_path, tmpbuffer, - len - 1, + len - 1, fid, cifs_sb->local_nls); - if(CIFSSMBClose(xid, pTcon, fid)) { - cFYI(1,("Error closing junction point (open for ioctl)")); + if (CIFSSMBClose(xid, pTcon, fid)) { + cFYI(1, ("Error closing junction point " + "(open for ioctl)")); } - if(rc == -EIO) { + if (rc == -EIO) { /* Query if DFS Junction */ tmp_path = kmalloc(MAX_TREE_SIZE + MAX_PATHCONF + 1, GFP_KERNEL); if (tmp_path) { - strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); - strncat(tmp_path, full_path, MAX_PATHCONF); - rc = get_dfs_path(xid, pTcon->ses, tmp_path, + strncpy(tmp_path, pTcon->treeName, + MAX_TREE_SIZE); + strncat(tmp_path, full_path, + MAX_PATHCONF); + rc = get_dfs_path(xid, pTcon->ses, + tmp_path, cifs_sb->local_nls, &num_referrals, &referrals, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1,("Get DFS for %s rc = %d ",tmp_path, rc)); - if((num_referrals == 0) && (rc == 0)) + cFYI(1, ("Get DFS for %s rc = %d ", + tmp_path, rc)); + if ((num_referrals == 0) && (rc == 0)) rc = -EACCES; else { - cFYI(1,("num referral: %d",num_referrals)); - if(referrals) { - cFYI(1,("referral string: %s",referrals)); - strncpy(tmpbuffer, referrals, len-1); + cFYI(1, ("num referral: %d", + num_referrals)); + if (referrals) { + cFYI(1,("referral string: %s", referrals)); + strncpy(tmpbuffer, + referrals, + len-1); } } kfree(referrals); kfree(tmp_path); } - /* BB add code like else decode referrals then memcpy to - tmpbuffer and free referrals string array BB */ + /* BB add code like else decode referrals + then memcpy to tmpbuffer and free referrals + string array BB */ } } } diff --git a/fs/cifs/md4.c b/fs/cifs/md4.c index 46d62c9dda0f..a2415c1a14db 100644 --- a/fs/cifs/md4.c +++ b/fs/cifs/md4.c @@ -1,20 +1,20 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. a implementation of MD4 designed for use in the SMB authentication protocol Copyright (C) Andrew Tridgell 1997-1998. Modified by Steve French (sfrench@us.ibm.com) 2002-2003 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. @@ -170,7 +170,7 @@ mdfour(unsigned char *out, unsigned char *in, int n) while (n > 64) { copy64(M, in); - mdfour64(M,&A,&B, &C, &D); + mdfour64(M, &A, &B, &C, &D); in += 64; n -= 64; } diff --git a/fs/cifs/md5.c b/fs/cifs/md5.c index ccebf9b7eb86..e5c3e1212697 100644 --- a/fs/cifs/md5.c +++ b/fs/cifs/md5.c @@ -15,9 +15,9 @@ * will fill a supplied 16-byte array with the digest. */ -/* This code slightly modified to fit into Samba by - abartlet@samba.org Jun 2001 - and to fit the cifs vfs by +/* This code slightly modified to fit into Samba by + abartlet@samba.org Jun 2001 + and to fit the cifs vfs by Steve French sfrench@us.ibm.com */ #include <linux/string.h> @@ -106,7 +106,7 @@ MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len) } /* - * Final wrapup - pad to 64-byte boundary with the bit pattern + * Final wrapup - pad to 64-byte boundary with the bit pattern * 1 0* (64-bit count of bits processed, MSB-first) */ void diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index 19cc294c7c70..0bcec0844bee 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -1,7 +1,7 @@ /* * fs/cifs/misc.c * - * Copyright (C) International Business Machines Corp., 2002,2005 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/slab.h> @@ -32,12 +32,12 @@ extern mempool_t *cifs_sm_req_poolp; extern mempool_t *cifs_req_poolp; -extern struct task_struct * oplockThread; +extern struct task_struct *oplockThread; -/* The xid serves as a useful identifier for each incoming vfs request, - in a similar way to the mid which is useful to track each sent smb, - and CurrentXid can also provide a running counter (although it - will eventually wrap past zero) of the total vfs operations handled +/* The xid serves as a useful identifier for each incoming vfs request, + in a similar way to the mid which is useful to track each sent smb, + and CurrentXid can also provide a running counter (although it + will eventually wrap past zero) of the total vfs operations handled since the cifs fs was mounted */ unsigned int @@ -47,10 +47,12 @@ _GetXid(void) spin_lock(&GlobalMid_Lock); GlobalTotalActiveXid++; + + /* keep high water mark for number of simultaneous ops in filesystem */ if (GlobalTotalActiveXid > GlobalMaxActiveXid) - GlobalMaxActiveXid = GlobalTotalActiveXid; /* keep high water mark for number of simultaneous vfs ops in our filesystem */ - if(GlobalTotalActiveXid > 65000) - cFYI(1,("warning: more than 65000 requests active")); + GlobalMaxActiveXid = GlobalTotalActiveXid; + if (GlobalTotalActiveXid > 65000) + cFYI(1, ("warning: more than 65000 requests active")); xid = GlobalCurrentXid++; spin_unlock(&GlobalMid_Lock); return xid; @@ -60,7 +62,7 @@ void _FreeXid(unsigned int xid) { spin_lock(&GlobalMid_Lock); - /* if(GlobalTotalActiveXid == 0) + /* if (GlobalTotalActiveXid == 0) BUG(); */ GlobalTotalActiveXid--; spin_unlock(&GlobalMid_Lock); @@ -144,12 +146,12 @@ cifs_buf_get(void) { struct smb_hdr *ret_buf = NULL; -/* We could use negotiated size instead of max_msgsize - - but it may be more efficient to always alloc same size - albeit slightly larger than necessary and maxbuffersize +/* We could use negotiated size instead of max_msgsize - + but it may be more efficient to always alloc same size + albeit slightly larger than necessary and maxbuffersize defaults to this and can not be bigger */ - ret_buf = - (struct smb_hdr *) mempool_alloc(cifs_req_poolp, GFP_KERNEL | GFP_NOFS); + ret_buf = (struct smb_hdr *) mempool_alloc(cifs_req_poolp, + GFP_KERNEL | GFP_NOFS); /* clear the first few header bytes */ /* for most paths, more is cleared in header_assemble */ @@ -172,7 +174,7 @@ cifs_buf_release(void *buf_to_free) /* cFYI(1, ("Null buffer passed to cifs_buf_release"));*/ return; } - mempool_free(buf_to_free,cifs_req_poolp); + mempool_free(buf_to_free, cifs_req_poolp); atomic_dec(&bufAllocCount); return; @@ -183,12 +185,12 @@ cifs_small_buf_get(void) { struct smb_hdr *ret_buf = NULL; -/* We could use negotiated size instead of max_msgsize - - but it may be more efficient to always alloc same size - albeit slightly larger than necessary and maxbuffersize +/* We could use negotiated size instead of max_msgsize - + but it may be more efficient to always alloc same size + albeit slightly larger than necessary and maxbuffersize defaults to this and can not be bigger */ - ret_buf = - (struct smb_hdr *) mempool_alloc(cifs_sm_req_poolp, GFP_KERNEL | GFP_NOFS); + ret_buf = (struct smb_hdr *) mempool_alloc(cifs_sm_req_poolp, + GFP_KERNEL | GFP_NOFS); if (ret_buf) { /* No need to clear memory here, cleared in header assemble */ /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/ @@ -209,30 +211,30 @@ cifs_small_buf_release(void *buf_to_free) cFYI(1, ("Null buffer passed to cifs_small_buf_release")); return; } - mempool_free(buf_to_free,cifs_sm_req_poolp); + mempool_free(buf_to_free, cifs_sm_req_poolp); atomic_dec(&smBufAllocCount); return; } -/* +/* Find a free multiplex id (SMB mid). Otherwise there could be mid collisions which might cause problems, demultiplexing the wrong response to this request. Multiplex ids could collide if one of a series requests takes much longer than the others, or if a very large number of long lived requests (byte range locks or FindNotify requests) are pending. No more than - 64K-1 requests can be outstanding at one time. If no + 64K-1 requests can be outstanding at one time. If no mids are available, return zero. A future optimization could make the combination of mids and uid the key we use - to demultiplex on (rather than mid alone). + to demultiplex on (rather than mid alone). In addition to the above check, the cifs demultiplex code already used the command code as a secondary check of the frame and if signing is negotiated the response would be discarded if the mid were the same but the signature was wrong. Since the mid is not put in the pending queue until later (when it is about to be dispatched) - we do have to limit the number of outstanding requests + we do have to limit the number of outstanding requests to somewhat less than 64K-1 although it is hard to imagine so many threads being in the vfs at one time. */ @@ -240,27 +242,27 @@ __u16 GetNextMid(struct TCP_Server_Info *server) { __u16 mid = 0; __u16 last_mid; - int collision; + int collision; - if(server == NULL) + if (server == NULL) return mid; spin_lock(&GlobalMid_Lock); last_mid = server->CurrentMid; /* we do not want to loop forever */ server->CurrentMid++; /* This nested loop looks more expensive than it is. - In practice the list of pending requests is short, + In practice the list of pending requests is short, fewer than 50, and the mids are likely to be unique on the first pass through the loop unless some request takes longer than the 64 thousand requests before it (and it would also have to have been a request that did not time out) */ - while(server->CurrentMid != last_mid) { + while (server->CurrentMid != last_mid) { struct list_head *tmp; struct mid_q_entry *mid_entry; collision = 0; - if(server->CurrentMid == 0) + if (server->CurrentMid == 0) server->CurrentMid++; list_for_each(tmp, &server->pending_mid_q) { @@ -273,7 +275,7 @@ __u16 GetNextMid(struct TCP_Server_Info *server) break; } } - if(collision == 0) { + if (collision == 0) { mid = server->CurrentMid; break; } @@ -290,11 +292,11 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , const struct cifsTconInfo *treeCon, int word_count /* length of fixed section (word count) in two byte units */) { - struct list_head* temp_item; - struct cifsSesInfo * ses; + struct list_head *temp_item; + struct cifsSesInfo *ses; char *temp = (char *) buffer; - memset(temp,0,256); /* bigger than MAX_CIFS_HDR_SIZE */ + memset(temp, 0, 256); /* bigger than MAX_CIFS_HDR_SIZE */ buffer->smb_buf_length = (2 * word_count) + sizeof (struct smb_hdr) - @@ -325,7 +327,7 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , /* Uid is not converted */ buffer->Uid = treeCon->ses->Suid; buffer->Mid = GetNextMid(treeCon->ses->server); - if(multiuser_mount != 0) { + if (multiuser_mount != 0) { /* For the multiuser case, there are few obvious technically */ /* possible mechanisms to match the local linux user (uid) */ /* to a valid remote smb user (smb_uid): */ @@ -348,21 +350,22 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , /* flag were disabled. */ /* BB Add support for establishing new tCon and SMB Session */ - /* with userid/password pairs found on the smb session */ + /* with userid/password pairs found on the smb session */ /* for other target tcp/ip addresses BB */ - if(current->fsuid != treeCon->ses->linux_uid) { - cFYI(1,("Multiuser mode and UID did not match tcon uid")); + if (current->fsuid != treeCon->ses->linux_uid) { + cFYI(1, ("Multiuser mode and UID " + "did not match tcon uid")); read_lock(&GlobalSMBSeslock); list_for_each(temp_item, &GlobalSMBSessionList) { ses = list_entry(temp_item, struct cifsSesInfo, cifsSessionList); - if(ses->linux_uid == current->fsuid) { - if(ses->server == treeCon->ses->server) { - cFYI(1,("found matching uid substitute right smb_uid")); + if (ses->linux_uid == current->fsuid) { + if (ses->server == treeCon->ses->server) { + cFYI(1, ("found matching uid substitute right smb_uid")); buffer->Uid = ses->Suid; break; } else { - /* BB eventually call cifs_setup_session here */ - cFYI(1,("local UID found but smb sess with this server does not exist")); + /* BB eventually call cifs_setup_session here */ + cFYI(1, ("local UID found but no smb sess with this server exists")); } } } @@ -374,8 +377,8 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , buffer->Flags2 |= SMBFLG2_DFS; if (treeCon->nocase) buffer->Flags |= SMBFLG_CASELESS; - if((treeCon->ses) && (treeCon->ses->server)) - if(treeCon->ses->server->secMode & + if ((treeCon->ses) && (treeCon->ses->server)) + if (treeCon->ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; } @@ -388,18 +391,18 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ , static int checkSMBhdr(struct smb_hdr *smb, __u16 mid) { - /* Make sure that this really is an SMB, that it is a response, + /* Make sure that this really is an SMB, that it is a response, and that the message ids match */ - if ((*(__le32 *) smb->Protocol == cpu_to_le32(0x424d53ff)) && - (mid == smb->Mid)) { - if(smb->Flags & SMBFLG_RESPONSE) - return 0; - else { + if ((*(__le32 *) smb->Protocol == cpu_to_le32(0x424d53ff)) && + (mid == smb->Mid)) { + if (smb->Flags & SMBFLG_RESPONSE) + return 0; + else { /* only one valid case where server sends us request */ - if(smb->Command == SMB_COM_LOCKING_ANDX) + if (smb->Command == SMB_COM_LOCKING_ANDX) return 0; else - cERROR(1, ("Rcvd Request not response")); + cERROR(1, ("Received Request not response")); } } else { /* bad signature or mid */ if (*(__le32 *) smb->Protocol != cpu_to_le32(0x424d53ff)) @@ -426,9 +429,9 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) smb->WordCount = 0; /* some error cases do not return wct and bcc */ return 0; - } else if ((length == sizeof(struct smb_hdr) + 1) && + } else if ((length == sizeof(struct smb_hdr) + 1) && (smb->WordCount == 0)) { - char * tmp = (char *)smb; + char *tmp = (char *)smb; /* Need to work around a bug in two servers here */ /* First, check if the part of bcc they sent was zero */ if (tmp[sizeof(struct smb_hdr)] == 0) { @@ -442,7 +445,7 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) tmp[sizeof(struct smb_hdr)+1] = 0; return 0; } - cERROR(1,("rcvd invalid byte count (bcc)")); + cERROR(1, ("rcvd invalid byte count (bcc)")); } else { cERROR(1, ("Length less than smb header size")); } @@ -458,32 +461,33 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) return 1; clc_len = smbCalcSize_LE(smb); - if(4 + len != length) { - cERROR(1, ("Length read does not match RFC1001 length %d",len)); + if (4 + len != length) { + cERROR(1, ("Length read does not match RFC1001 length %d", + len)); return 1; } if (4 + len != clc_len) { /* check if bcc wrapped around for large read responses */ - if((len > 64 * 1024) && (len > clc_len)) { + if ((len > 64 * 1024) && (len > clc_len)) { /* check if lengths match mod 64K */ - if(((4 + len) & 0xFFFF) == (clc_len & 0xFFFF)) - return 0; /* bcc wrapped */ + if (((4 + len) & 0xFFFF) == (clc_len & 0xFFFF)) + return 0; /* bcc wrapped */ } cFYI(1, ("Calculated size %d vs length %d mismatch for mid %d", clc_len, 4 + len, smb->Mid)); /* Windows XP can return a few bytes too much, presumably - an illegal pad, at the end of byte range lock responses + an illegal pad, at the end of byte range lock responses so we allow for that three byte pad, as long as actual received length is as long or longer than calculated length */ - /* We have now had to extend this more, since there is a + /* We have now had to extend this more, since there is a case in which it needs to be bigger still to handle a malformed response to transact2 findfirst from WinXP when access denied is returned and thus bcc and wct are zero but server says length is 0x21 bytes too long as if the server forget to reset the smb rfc1001 length when it reset the wct and bcc to minimum size and drop the t2 parms and data */ - if((4+len > clc_len) && (len <= clc_len + 512)) + if ((4+len > clc_len) && (len <= clc_len + 512)) return 0; else { cERROR(1, ("RFC1001 size %d bigger than SMB for Mid=%d", @@ -495,61 +499,64 @@ checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length) } int is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv) -{ - struct smb_com_lock_req * pSMB = (struct smb_com_lock_req *)buf; +{ + struct smb_com_lock_req *pSMB = (struct smb_com_lock_req *)buf; struct list_head *tmp; struct list_head *tmp1; struct cifsTconInfo *tcon; struct cifsFileInfo *netfile; - cFYI(1,("Checking for oplock break or dnotify response")); - if((pSMB->hdr.Command == SMB_COM_NT_TRANSACT) && + cFYI(1, ("Checking for oplock break or dnotify response")); + if ((pSMB->hdr.Command == SMB_COM_NT_TRANSACT) && (pSMB->hdr.Flags & SMBFLG_RESPONSE)) { - struct smb_com_transaction_change_notify_rsp * pSMBr = + struct smb_com_transaction_change_notify_rsp *pSMBr = (struct smb_com_transaction_change_notify_rsp *)buf; - struct file_notify_information * pnotify; + struct file_notify_information *pnotify; __u32 data_offset = 0; - if(pSMBr->ByteCount > sizeof(struct file_notify_information)) { + if (pSMBr->ByteCount > sizeof(struct file_notify_information)) { data_offset = le32_to_cpu(pSMBr->DataOffset); pnotify = (struct file_notify_information *) ((char *)&pSMBr->hdr.Protocol + data_offset); - cFYI(1,("dnotify on %s Action: 0x%x",pnotify->FileName, + cFYI(1, ("dnotify on %s Action: 0x%x", + pnotify->FileName, pnotify->Action)); /* BB removeme BB */ - /* cifs_dump_mem("Rcvd notify Data: ",buf, + /* cifs_dump_mem("Rcvd notify Data: ",buf, sizeof(struct smb_hdr)+60); */ return TRUE; } - if(pSMBr->hdr.Status.CifsError) { - cFYI(1,("notify err 0x%d",pSMBr->hdr.Status.CifsError)); + if (pSMBr->hdr.Status.CifsError) { + cFYI(1, ("notify err 0x%d", + pSMBr->hdr.Status.CifsError)); return TRUE; } return FALSE; - } - if(pSMB->hdr.Command != SMB_COM_LOCKING_ANDX) + } + if (pSMB->hdr.Command != SMB_COM_LOCKING_ANDX) return FALSE; - if(pSMB->hdr.Flags & SMBFLG_RESPONSE) { + if (pSMB->hdr.Flags & SMBFLG_RESPONSE) { /* no sense logging error on invalid handle on oplock break - harmless race between close request and oplock break response is expected from time to time writing out large dirty files cached on the client */ - if ((NT_STATUS_INVALID_HANDLE) == - le32_to_cpu(pSMB->hdr.Status.CifsError)) { - cFYI(1,("invalid handle on oplock break")); + if ((NT_STATUS_INVALID_HANDLE) == + le32_to_cpu(pSMB->hdr.Status.CifsError)) { + cFYI(1, ("invalid handle on oplock break")); return TRUE; - } else if (ERRbadfid == + } else if (ERRbadfid == le16_to_cpu(pSMB->hdr.Status.DosError.Error)) { - return TRUE; + return TRUE; } else { return FALSE; /* on valid oplock brk we get "request" */ } } - if(pSMB->hdr.WordCount != 8) + if (pSMB->hdr.WordCount != 8) return FALSE; - cFYI(1,(" oplock type 0x%d level 0x%d",pSMB->LockType,pSMB->OplockLevel)); - if(!(pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE)) - return FALSE; + cFYI(1, ("oplock type 0x%d level 0x%d", + pSMB->LockType, pSMB->OplockLevel)); + if (!(pSMB->LockType & LOCKING_ANDX_OPLOCK_RELEASE)) + return FALSE; /* look up tcon based on tid & uid */ read_lock(&GlobalSMBSeslock); @@ -557,36 +564,38 @@ is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv) tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); if ((tcon->tid == buf->Tid) && (srv == tcon->ses->server)) { cifs_stats_inc(&tcon->num_oplock_brks); - list_for_each(tmp1,&tcon->openFileList){ - netfile = list_entry(tmp1,struct cifsFileInfo, + list_for_each(tmp1, &tcon->openFileList) { + netfile = list_entry(tmp1, struct cifsFileInfo, tlist); - if(pSMB->Fid == netfile->netfid) { + if (pSMB->Fid == netfile->netfid) { struct cifsInodeInfo *pCifsInode; read_unlock(&GlobalSMBSeslock); - cFYI(1,("file id match, oplock break")); - pCifsInode = + cFYI(1, + ("file id match, oplock break")); + pCifsInode = CIFS_I(netfile->pInode); pCifsInode->clientCanCacheAll = FALSE; - if(pSMB->OplockLevel == 0) + if (pSMB->OplockLevel == 0) pCifsInode->clientCanCacheRead = FALSE; pCifsInode->oplockPending = TRUE; AllocOplockQEntry(netfile->pInode, netfile->netfid, tcon); - cFYI(1,("about to wake up oplock thd")); - if(oplockThread) + cFYI(1, + ("about to wake up oplock thread")); + if (oplockThread) wake_up_process(oplockThread); return TRUE; } } read_unlock(&GlobalSMBSeslock); - cFYI(1,("No matching file for oplock break")); + cFYI(1, ("No matching file for oplock break")); return TRUE; } } read_unlock(&GlobalSMBSeslock); - cFYI(1,("Can not process oplock break for non-existent connection")); + cFYI(1, ("Can not process oplock break for non-existent connection")); return TRUE; } @@ -643,13 +652,13 @@ dump_smb(struct smb_hdr *smb_buf, int smb_buf_length) only legal in POSIX-like OS (if they are present in the string). Path names are little endian 16 bit Unicode on the wire */ int -cifs_convertUCSpath(char *target, const __le16 * source, int maxlen, - const struct nls_table * cp) +cifs_convertUCSpath(char *target, const __le16 *source, int maxlen, + const struct nls_table *cp) { - int i,j,len; + int i, j, len; __u16 src_char; - for(i = 0, j = 0; i < maxlen; i++) { + for (i = 0, j = 0; i < maxlen; i++) { src_char = le16_to_cpu(source[i]); switch (src_char) { case 0: @@ -678,10 +687,10 @@ cifs_convertUCSpath(char *target, const __le16 * source, int maxlen, case UNI_LESSTHAN: target[j] = '<'; break; - default: - len = cp->uni2char(src_char, &target[j], + default: + len = cp->uni2char(src_char, &target[j], NLS_MAX_CHARSET_SIZE); - if(len > 0) { + if (len > 0) { j += len; continue; } else { @@ -690,7 +699,7 @@ cifs_convertUCSpath(char *target, const __le16 * source, int maxlen, } j++; /* make sure we do not overrun callers allocated temp buffer */ - if(j >= (2 * NAME_MAX)) + if (j >= (2 * NAME_MAX)) break; } cUCS_out: @@ -703,18 +712,18 @@ cUCS_out: only legal in POSIX-like OS (if they are present in the string). Path names are little endian 16 bit Unicode on the wire */ int -cifsConvertToUCS(__le16 * target, const char *source, int maxlen, - const struct nls_table * cp, int mapChars) +cifsConvertToUCS(__le16 *target, const char *source, int maxlen, + const struct nls_table *cp, int mapChars) { - int i,j,charlen; + int i, j, charlen; int len_remaining = maxlen; char src_char; __u16 temp; - if(!mapChars) + if (!mapChars) return cifs_strtoUCS(target, source, PATH_MAX, cp); - for(i = 0, j = 0; i < maxlen; j++) { + for (i = 0, j = 0; i < maxlen; j++) { src_char = source[i]; switch (src_char) { case 0: @@ -737,7 +746,7 @@ cifsConvertToUCS(__le16 * target, const char *source, int maxlen, break; case '|': target[j] = cpu_to_le16(UNI_PIPE); - break; + break; /* BB We can not handle remapping slash until all the calls to build_path_from_dentry are modified, as they use slash as separator BB */ @@ -749,7 +758,7 @@ cifsConvertToUCS(__le16 * target, const char *source, int maxlen, len_remaining, &temp); /* if no match, use question mark, which at least in some cases servers as wild card */ - if(charlen < 1) { + if (charlen < 1) { target[j] = cpu_to_le16(0x003f); charlen = 1; } else @@ -758,7 +767,7 @@ cifsConvertToUCS(__le16 * target, const char *source, int maxlen, /* character may take more than one byte in the the source string, but will take exactly two bytes in the target string */ - i+= charlen; + i += charlen; continue; } i++; /* move to next char in source string */ diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 53e304d59544..2bfed3f45d0f 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -3,23 +3,22 @@ * * Copyright (c) International Business Machines Corp., 2002 * Author(s): Steve French (sfrench@us.ibm.com) - * + * * Error mapping routines from Samba libsmb/errormap.c * Copyright (C) Andrew Tridgell 2001 * - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software + * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ @@ -30,9 +29,7 @@ #include <linux/fs.h> #include <asm/div64.h> #include <asm/byteorder.h> -#ifdef CONFIG_CIFS_EXPERIMENTAL #include <linux/inet.h> -#endif #include "cifsfs.h" #include "cifspdu.h" #include "cifsglob.h" @@ -67,22 +64,22 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = { {ERRbadshare, -ETXTBSY}, {ERRlock, -EACCES}, {ERRunsup, -EINVAL}, - {ERRnosuchshare,-ENXIO}, + {ERRnosuchshare, -ENXIO}, {ERRfilexists, -EEXIST}, {ERRinvparm, -EINVAL}, {ERRdiskfull, -ENOSPC}, {ERRinvname, -ENOENT}, - {ERRinvlevel,-EOPNOTSUPP}, + {ERRinvlevel, -EOPNOTSUPP}, {ERRdirnotempty, -ENOTEMPTY}, {ERRnotlocked, -ENOLCK}, {ERRcancelviolation, -ENOLCK}, {ERRalreadyexists, -EEXIST}, {ERRmoredata, -EOVERFLOW}, - {ERReasnotsupported,-EOPNOTSUPP}, + {ERReasnotsupported, -EOPNOTSUPP}, {ErrQuota, -EDQUOT}, {ErrNotALink, -ENOLINK}, - {ERRnetlogonNotStarted,-ENOPROTOOPT}, - {ErrTooManyLinks,-EMLINK}, + {ERRnetlogonNotStarted, -ENOPROTOOPT}, + {ErrTooManyLinks, -EMLINK}, {0, 0} }; @@ -133,85 +130,24 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = { /* returns 0 if invalid address */ int -cifs_inet_pton(int address_family, char *cp,void *dst) +cifs_inet_pton(int address_family, char *cp, void *dst) { -#ifdef CONFIG_CIFS_EXPERIMENTAL int ret = 0; /* calculate length by finding first slash or NULL */ - /* BB Should we convert '/' slash to '\' here since it seems already done - before this */ - if( address_family == AF_INET ){ - ret = in4_pton(cp, -1 /* len */, dst , '\\', NULL); - } else if( address_family == AF_INET6 ){ + /* BB Should we convert '/' slash to '\' here since it seems already + * done before this */ + if ( address_family == AF_INET ) { + ret = in4_pton(cp, -1 /* len */, dst , '\\', NULL); + } else if ( address_family == AF_INET6 ) { ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL); } #ifdef CONFIG_CIFS_DEBUG2 - cFYI(1,("address conversion returned %d for %s", ret, cp)); + cFYI(1, ("address conversion returned %d for %s", ret, cp)); #endif if (ret > 0) ret = 1; return ret; -#else - int value; - int digit; - int i; - char temp; - char bytes[4]; - char *end = bytes; - static const int addr_class_max[4] = - { 0xffffffff, 0xffffff, 0xffff, 0xff }; - - if(address_family != AF_INET) - return -EAFNOSUPPORT; - - for (i = 0; i < 4; i++) { - bytes[i] = 0; - } - - temp = *cp; - - while (TRUE) { - if (!isdigit(temp)) - return 0; - - value = 0; - digit = 0; - for (;;) { - if (isascii(temp) && isdigit(temp)) { - value = (value * 10) + temp - '0'; - temp = *++cp; - digit = 1; - } else - break; - } - - if (temp == '.') { - if ((end > bytes + 2) || (value > 255)) - return 0; - *end++ = value; - temp = *++cp; - } else if (temp == ':') { - cFYI(1,("IPv6 addresses not supported for CIFS mounts yet")); - return -1; - } else - break; - } - - /* check for last characters */ - if (temp != '\0' && (!isascii(temp) || !isspace(temp))) - if (temp != '\\') { - if (temp != '/') - return 0; - else - (*cp = '\\'); /* switch the slash the expected way */ - } - if (value > addr_class_max[end - bytes]) - return 0; - - *((__be32 *)dst) = *((__be32 *) bytes) | htonl(value); - return 1; /* success */ -#endif /* EXPERIMENTAL */ } /***************************************************************************** @@ -246,7 +182,7 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_UNRECOGNIZED_MEDIA}, { ERRDOS, 27, NT_STATUS_NONEXISTENT_SECTOR}, /* { This NT error code was 'sqashed' - from NT_STATUS_MORE_PROCESSING_REQUIRED to NT_STATUS_OK + from NT_STATUS_MORE_PROCESSING_REQUIRED to NT_STATUS_OK during the session setup } */ { ERRDOS, ERRnomem, NT_STATUS_NO_MEMORY}, { @@ -261,7 +197,7 @@ static const struct { ERRDOS, 193, NT_STATUS_INVALID_FILE_FOR_SECTION}, { ERRDOS, ERRnoaccess, NT_STATUS_ALREADY_COMMITTED}, /* { This NT error code was 'sqashed' - from NT_STATUS_ACCESS_DENIED to NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE + from NT_STATUS_ACCESS_DENIED to NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_ACCESS_DENIED}, { @@ -331,7 +267,7 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_INVALID_ACCOUNT_NAME}, { ERRHRD, ERRgeneral, NT_STATUS_USER_EXISTS}, /* { This NT error code was 'sqashed' - from NT_STATUS_NO_SUCH_USER to NT_STATUS_LOGON_FAILURE + from NT_STATUS_NO_SUCH_USER to NT_STATUS_LOGON_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_NO_SUCH_USER}, { @@ -341,7 +277,7 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_MEMBER_NOT_IN_GROUP}, { ERRHRD, ERRgeneral, NT_STATUS_LAST_ADMIN}, /* { This NT error code was 'sqashed' - from NT_STATUS_WRONG_PASSWORD to NT_STATUS_LOGON_FAILURE + from NT_STATUS_WRONG_PASSWORD to NT_STATUS_LOGON_FAILURE during the session setup } */ { ERRSRV, ERRbadpw, NT_STATUS_WRONG_PASSWORD}, { @@ -393,8 +329,8 @@ static const struct { ERRHRD, ERRgeneral, NT_STATUS_FILE_INVALID}, { ERRHRD, ERRgeneral, NT_STATUS_ALLOTTED_SPACE_EXCEEDED}, /* { This NT error code was 'sqashed' - from NT_STATUS_INSUFFICIENT_RESOURCES to NT_STATUS_INSUFF_SERVER_RESOURCES - during the session setup } */ + from NT_STATUS_INSUFFICIENT_RESOURCES to + NT_STATUS_INSUFF_SERVER_RESOURCES during the session setup } */ { ERRDOS, ERRnomem, NT_STATUS_INSUFFICIENT_RESOURCES}, { ERRDOS, ERRbadpath, NT_STATUS_DFS_EXIT_PATH_FOUND}, { @@ -638,8 +574,8 @@ static const struct { ERRDOS, 19, NT_STATUS_TOO_LATE}, { ERRDOS, ERRnoaccess, NT_STATUS_NO_TRUST_LSA_SECRET}, /* { This NT error code was 'sqashed' - from NT_STATUS_NO_TRUST_SAM_ACCOUNT to NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE - during the session setup } */ + from NT_STATUS_NO_TRUST_SAM_ACCOUNT to + NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_NO_TRUST_SAM_ACCOUNT}, { ERRDOS, ERRnoaccess, NT_STATUS_TRUSTED_DOMAIN_FAILURE}, { @@ -658,7 +594,7 @@ static const struct { ERRDOS, ERRnoaccess, NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT}, { ERRDOS, ERRnoaccess, NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT}, /* { This NT error code was 'sqashed' - from NT_STATUS_DOMAIN_TRUST_INCONSISTENT to NT_STATUS_LOGON_FAILURE + from NT_STATUS_DOMAIN_TRUST_INCONSISTENT to NT_STATUS_LOGON_FAILURE during the session setup } */ { ERRDOS, ERRnoaccess, NT_STATUS_DOMAIN_TRUST_INCONSISTENT}, { @@ -789,7 +725,7 @@ cifs_print_status(__u32 status_code) if (((nt_errs[idx].nt_errcode) & 0xFFFFFF) == (status_code & 0xFFFFFF)) { printk(KERN_NOTICE "Status code returned 0x%08x %s\n", - status_code,nt_errs[idx].nt_errstr); + status_code, nt_errs[idx].nt_errstr); } idx++; } @@ -821,7 +757,7 @@ int map_smb_to_linux_error(struct smb_hdr *smb) { unsigned int i; - int rc = -EIO; /* if transport error smb error may not be set */ + int rc = -EIO; /* if transport error smb error may not be set */ __u8 smberrclass; __u16 smberrcode; @@ -832,9 +768,10 @@ map_smb_to_linux_error(struct smb_hdr *smb) return 0; if (smb->Flags2 & SMBFLG2_ERR_STATUS) { - /* translate the newer STATUS codes to old style errors and then to POSIX errors */ + /* translate the newer STATUS codes to old style SMB errors + * and then to POSIX errors */ __u32 err = le32_to_cpu(smb->Status.CifsError); - if(cifsFYI & CIFS_RC) + if (cifsFYI & CIFS_RC) cifs_print_status(err); ntstatus_to_dos(err, &smberrclass, &smberrcode); } else { @@ -845,38 +782,42 @@ map_smb_to_linux_error(struct smb_hdr *smb) /* old style errors */ /* DOS class smb error codes - map DOS */ - if (smberrclass == ERRDOS) { /* one byte field no need to byte reverse */ + if (smberrclass == ERRDOS) { /* 1 byte field no need to byte reverse */ for (i = 0; i < sizeof (mapping_table_ERRDOS) / sizeof (struct smb_to_posix_error); i++) { if (mapping_table_ERRDOS[i].smb_err == 0) break; - else if (mapping_table_ERRDOS[i].smb_err == smberrcode) { + else if (mapping_table_ERRDOS[i].smb_err == + smberrcode) { rc = mapping_table_ERRDOS[i].posix_code; break; } - /* else try the next error mapping one to see if it will match */ + /* else try next error mapping one to see if match */ } - } else if (smberrclass == ERRSRV) { /* server class of error codes */ + } else if (smberrclass == ERRSRV) { /* server class of error codes */ for (i = 0; i < sizeof (mapping_table_ERRSRV) / sizeof (struct smb_to_posix_error); i++) { if (mapping_table_ERRSRV[i].smb_err == 0) break; - else if (mapping_table_ERRSRV[i].smb_err == smberrcode) { + else if (mapping_table_ERRSRV[i].smb_err == + smberrcode) { rc = mapping_table_ERRSRV[i].posix_code; break; } - /* else try the next error mapping one to see if it will match */ + /* else try next error mapping to see if match */ } } /* else ERRHRD class errors or junk - return EIO */ - cFYI(1, (" !!Mapping smb error code %d to POSIX err %d !!", smberrcode,rc)); + cFYI(1, (" !!Mapping smb error code %d to POSIX err %d !!", + smberrcode, rc)); - /* generic corrective action e.g. reconnect SMB session on ERRbaduid could be added */ + /* generic corrective action e.g. reconnect SMB session on + * ERRbaduid could be added */ return rc; } @@ -910,7 +851,7 @@ smbCalcSize_LE(struct smb_hdr *ptr) struct timespec cifs_NTtimeToUnix(u64 ntutc) { - struct timespec ts; + struct timespec ts; /* BB what about the timezone? BB */ /* Subtract the NTFS time offset, then convert to 1s intervals. */ @@ -918,7 +859,7 @@ cifs_NTtimeToUnix(u64 ntutc) t = ntutc - NTFS_TIME_OFFSET; ts.tv_nsec = do_div(t, 10000000) * 100; - ts.tv_sec = t; + ts.tv_sec = t; return ts; } @@ -946,20 +887,20 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) SMB_TIME * st = (SMB_TIME *)&time; SMB_DATE * sd = (SMB_DATE *)&date; - cFYI(1,("date %d time %d",date, time)); + cFYI(1, ("date %d time %d", date, time)); sec = 2 * st->TwoSeconds; min = st->Minutes; - if((sec > 59) || (min > 59)) - cERROR(1,("illegal time min %d sec %d", min, sec)); + if ((sec > 59) || (min > 59)) + cERROR(1, ("illegal time min %d sec %d", min, sec)); sec += (min * 60); sec += 60 * 60 * st->Hours; - if(st->Hours > 24) - cERROR(1,("illegal hours %d",st->Hours)); + if (st->Hours > 24) + cERROR(1, ("illegal hours %d", st->Hours)); days = sd->Day; month = sd->Month; - if((days > 31) || (month > 12)) - cERROR(1,("illegal date, month %d day: %d", month, days)); + if ((days > 31) || (month > 12)) + cERROR(1, ("illegal date, month %d day: %d", month, days)); month -= 1; days += total_days_of_prev_months[month]; days += 3652; /* account for difference in days between 1980 and 1970 */ @@ -970,15 +911,15 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) for years/100 except for years/400, but since the maximum number for DOS year is 2**7, the last year is 1980+127, which means we need only consider 2 special case years, ie the years 2000 and 2100, and only - adjust for the lack of leap year for the year 2100, as 2000 was a + adjust for the lack of leap year for the year 2100, as 2000 was a leap year (divisable by 400) */ - if(year >= 120) /* the year 2100 */ + if (year >= 120) /* the year 2100 */ days = days - 1; /* do not count leap year for the year 2100 */ /* adjust for leap year where we are still before leap day */ - if(year != 120) + if (year != 120) days -= ((year & 0x03) == 0) && (month < 2 ? 1 : 0); - sec += 24 * 60 * 60 * days; + sec += 24 * 60 * 60 * days; ts.tv_sec = sec; @@ -986,4 +927,4 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) ts.tv_nsec = 0; return ts; -} +} diff --git a/fs/cifs/nterr.c b/fs/cifs/nterr.c index 4da50cd34469..819fd994b121 100644 --- a/fs/cifs/nterr.c +++ b/fs/cifs/nterr.c @@ -1,19 +1,19 @@ -/* +/* * Unix SMB/Netbios implementation. * Version 1.9. * RPC Pipe client / server routines * Copyright (C) Luke Kenneth Casson Leighton 1997-2001. - * + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. diff --git a/fs/cifs/nterr.h b/fs/cifs/nterr.h index d2fb06c97dfa..588abbb9d08c 100644 --- a/fs/cifs/nterr.h +++ b/fs/cifs/nterr.h @@ -1,4 +1,4 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. NT error code constants @@ -6,17 +6,17 @@ Copyright (C) John H Terpstra 1996-2000 Copyright (C) Luke Kenneth Casson Leighton 1996-2000 Copyright (C) Paul Ashton 1998-2000 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. diff --git a/fs/cifs/ntlmssp.h b/fs/cifs/ntlmssp.h index d39b712a11c5..7170a9b70f1e 100644 --- a/fs/cifs/ntlmssp.h +++ b/fs/cifs/ntlmssp.h @@ -1,7 +1,7 @@ /* * fs/cifs/ntlmssp.h * - * Copyright (c) International Business Machines Corp., 2002,2006 + * Copyright (c) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -16,7 +16,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define NTLMSSP_SIGNATURE "NTLMSSP" @@ -27,18 +27,18 @@ #define UnknownMessage cpu_to_le32(8) /* Negotiate Flags */ -#define NTLMSSP_NEGOTIATE_UNICODE 0x01 // Text strings are in unicode -#define NTLMSSP_NEGOTIATE_OEM 0x02 // Text strings are in OEM -#define NTLMSSP_REQUEST_TARGET 0x04 // Server return its auth realm -#define NTLMSSP_NEGOTIATE_SIGN 0x0010 // Request signature capability -#define NTLMSSP_NEGOTIATE_SEAL 0x0020 // Request confidentiality +#define NTLMSSP_NEGOTIATE_UNICODE 0x01 /* Text strings are in unicode */ +#define NTLMSSP_NEGOTIATE_OEM 0x02 /* Text strings are in OEM */ +#define NTLMSSP_REQUEST_TARGET 0x04 /* Server return its auth realm */ +#define NTLMSSP_NEGOTIATE_SIGN 0x0010 /* Request signature capability */ +#define NTLMSSP_NEGOTIATE_SEAL 0x0020 /* Request confidentiality */ #define NTLMSSP_NEGOTIATE_DGRAM 0x0040 -#define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 // Use LM session key for sign/seal -#define NTLMSSP_NEGOTIATE_NTLM 0x0200 // NTLM authentication +#define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 /* Sign/seal use LM session key */ +#define NTLMSSP_NEGOTIATE_NTLM 0x0200 /* NTLM authentication */ #define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000 #define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x2000 -#define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 // client/server on same machine -#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 // Sign for all security levels +#define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 /* client/server on same machine */ +#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 /* Sign for all security levels */ #define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000 #define NTLMSSP_TARGET_TYPE_SERVER 0x20000 #define NTLMSSP_TARGET_TYPE_SHARE 0x40000 diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index c08bda9fcac6..916df9431336 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -2,7 +2,7 @@ * fs/cifs/readdir.c * * Directory search handling - * + * * Copyright (C) International Business Machines Corp., 2004, 2007 * Author(s): Steve French (sfrench@us.ibm.com) * @@ -34,24 +34,23 @@ #ifdef CONFIG_CIFS_DEBUG2 static void dump_cifs_file_struct(struct file *file, char *label) { - struct cifsFileInfo * cf; + struct cifsFileInfo *cf; if (file) { cf = file->private_data; if (cf == NULL) { - cFYI(1,("empty cifs private file data")); + cFYI(1, ("empty cifs private file data")); return; } if (cf->invalidHandle) { - cFYI(1,("invalid handle")); + cFYI(1, ("invalid handle")); } if (cf->srch_inf.endOfSearch) { - cFYI(1,("end of search")); + cFYI(1, ("end of search")); } if (cf->srch_inf.emptyDir) { - cFYI(1,("empty dir")); + cFYI(1, ("empty dir")); } - } } #endif /* DEBUG2 */ @@ -73,7 +72,8 @@ static int construct_dentry(struct qstr *qstring, struct file *file, qstring->hash = full_name_hash(qstring->name, qstring->len); tmp_dentry = d_lookup(file->f_path.dentry, qstring); if (tmp_dentry) { - cFYI(0, ("existing dentry with inode 0x%p", tmp_dentry->d_inode)); + cFYI(0, ("existing dentry with inode 0x%p", + tmp_dentry->d_inode)); *ptmp_inode = tmp_dentry->d_inode; /* BB overwrite old name? i.e. tmp_dentry->d_name and tmp_dentry->d_name.len??*/ if (*ptmp_inode == NULL) { @@ -87,7 +87,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file, } else { tmp_dentry = d_alloc(file->f_path.dentry, qstring); if (tmp_dentry == NULL) { - cERROR(1,("Failed allocating dentry")); + cERROR(1, ("Failed allocating dentry")); *ptmp_inode = NULL; return rc; } @@ -100,7 +100,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file, if (*ptmp_inode == NULL) return rc; if (file->f_path.dentry->d_sb->s_flags & MS_NOATIME) - (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME; + (*ptmp_inode)->i_flags |= S_NOATIME | S_NOCMTIME; rc = 2; } @@ -109,7 +109,7 @@ static int construct_dentry(struct qstr *qstring, struct file *file, return rc; } -static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode) +static void AdjustForTZ(struct cifsTconInfo *tcon, struct inode *inode) { if ((tcon) && (tcon->ses) && (tcon->ses->server)) { inode->i_ctime.tv_sec += tcon->ses->server->timeAdj; @@ -121,7 +121,7 @@ static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode) static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, - char * buf, int *pobject_type, int isNewInode) + char *buf, int *pobject_type, int isNewInode) { loff_t local_size; struct timespec local_mtime; @@ -150,7 +150,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime)); } else { /* legacy, OS2 and DOS style */ /* struct timespec ts;*/ - FIND_FILE_STANDARD_INFO * pfindData = + FIND_FILE_STANDARD_INFO * pfindData = (FIND_FILE_STANDARD_INFO *)buf; tmp_inode->i_mtime = cnvrtDosUnixTm( @@ -175,7 +175,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, /* treat dos attribute of read-only as read-only mode bit e.g. 555? */ /* 2767 perms - indicate mandatory locking */ - /* BB fill in uid and gid here? with help from winbind? + /* BB fill in uid and gid here? with help from winbind? or retrieve from NTFS stream extended attribute */ if (atomic_read(&cifsInfo->inUse) == 0) { tmp_inode->i_uid = cifs_sb->mnt_uid; @@ -196,7 +196,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, tmp_inode->i_mode = cifs_sb->mnt_dir_mode; } tmp_inode->i_mode |= S_IFDIR; - } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && + } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && (attr & ATTR_SYSTEM)) { if (end_of_file == 0) { *pobject_type = DT_FIFO; @@ -206,13 +206,13 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, inode as needing revalidate and get the real type (blk vs chr vs. symlink) later ie in lookup */ *pobject_type = DT_REG; - tmp_inode->i_mode |= S_IFREG; - cifsInfo->time = 0; + tmp_inode->i_mode |= S_IFREG; + cifsInfo->time = 0; } /* we no longer mark these because we could not follow them */ /* } else if (attr & ATTR_REPARSE) { - *pobject_type = DT_LNK; - tmp_inode->i_mode |= S_IFLNK; */ + *pobject_type = DT_LNK; + tmp_inode->i_mode |= S_IFLNK; */ } else { *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; @@ -220,7 +220,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, tmp_inode->i_mode &= ~(S_IWUGO); else if ((tmp_inode->i_mode & S_IWUGO) == 0) /* the ATTR_READONLY flag may have been changed on */ - /* server -- set any w bits allowed by mnt_file_mode */ + /* server -- set any w bits allowed by mnt_file_mode */ tmp_inode->i_mode |= (S_IWUGO & cifs_sb->mnt_file_mode); } /* could add code here - to validate if device or weird share type? */ @@ -231,7 +231,7 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the + /* can not safely change the file size here if the client is writing to it due to potential races */ i_size_write(tmp_inode, end_of_file); @@ -254,7 +254,6 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, tmp_inode->i_fop = &cifs_file_direct_nobrl_ops; else tmp_inode->i_fop = &cifs_file_direct_ops; - } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) tmp_inode->i_fop = &cifs_file_nobrl_ops; else @@ -322,8 +321,8 @@ static void unix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_mode = le64_to_cpu(pfindData->Permissions); /* since we set the inode type below we need to mask off type - to avoid strange results if bits above were corrupt */ - tmp_inode->i_mode &= ~S_IFMT; + to avoid strange results if bits above were corrupt */ + tmp_inode->i_mode &= ~S_IFMT; if (type == UNIX_FILE) { *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; @@ -353,7 +352,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode, /* safest to just call it a file */ *pobject_type = DT_REG; tmp_inode->i_mode |= S_IFREG; - cFYI(1,("unknown inode type %d",type)); + cFYI(1, ("unknown inode type %d", type)); } if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) @@ -368,7 +367,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode, spin_lock(&tmp_inode->i_lock); if (is_size_safe_to_change(cifsInfo, end_of_file)) { - /* can not safely change the file size here if the + /* can not safely change the file size here if the client is writing to it due to potential races */ i_size_write(tmp_inode, end_of_file); @@ -393,15 +392,16 @@ static void unix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_fop = &cifs_file_ops; if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) && - (cifs_sb->tcon->ses->server->maxBuf < + (cifs_sb->tcon->ses->server->maxBuf < PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)) tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf; else tmp_inode->i_data.a_ops = &cifs_addr_ops; if (isNewInode) - return; /* No sense invalidating pages for new inode since we - have not started caching readahead file data yet */ + return; /* No sense invalidating pages for new inode + since we have not started caching readahead + file data for it yet */ if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) && (local_size == tmp_inode->i_size)) { @@ -420,7 +420,7 @@ static void unix_fill_in_inode(struct inode *tmp_inode, tmp_inode->i_op = &cifs_symlink_inode_ops; /* tmp_inode->i_fop = *//* do not need to set to anything */ } else { - cFYI(1, ("Special inode")); + cFYI(1, ("Special inode")); init_special_inode(tmp_inode, tmp_inode->i_mode, tmp_inode->i_rdev); } @@ -429,14 +429,14 @@ static void unix_fill_in_inode(struct inode *tmp_inode, static int initiate_cifs_search(const int xid, struct file *file) { int rc = 0; - char * full_path; - struct cifsFileInfo * cifsFile; + char *full_path; + struct cifsFileInfo *cifsFile; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; if (file->private_data == NULL) { - file->private_data = - kzalloc(sizeof(struct cifsFileInfo),GFP_KERNEL); + file->private_data = + kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL); } if (file->private_data == NULL) @@ -463,9 +463,11 @@ static int initiate_cifs_search(const int xid, struct file *file) ffirst_retry: /* test for Unix extensions */ - if (pTcon->ses->capabilities & CAP_UNIX) { + /* but now check for them on the share/mount not on the SMB session */ +/* if (pTcon->ses->capabilities & CAP_UNIX) { */ + if (pTcon->unix_ext) { cifsFile->srch_inf.info_level = SMB_FIND_FILE_UNIX; - } else if ((pTcon->ses->capabilities & + } else if ((pTcon->ses->capabilities & (CAP_NT_SMBS | CAP_NT_FIND)) == 0) { cifsFile->srch_inf.info_level = SMB_FIND_FILE_INFO_STANDARD; } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) { @@ -474,13 +476,13 @@ ffirst_retry: cifsFile->srch_inf.info_level = SMB_FIND_FILE_DIRECTORY_INFO; } - rc = CIFSFindFirst(xid, pTcon,full_path,cifs_sb->local_nls, + rc = CIFSFindFirst(xid, pTcon, full_path, cifs_sb->local_nls, &cifsFile->netfid, &cifsFile->srch_inf, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR, CIFS_DIR_SEP(cifs_sb)); if (rc == 0) cifsFile->invalidHandle = FALSE; - if ((rc == -EOPNOTSUPP) && + if ((rc == -EOPNOTSUPP) && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) { cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM; goto ffirst_retry; @@ -495,17 +497,17 @@ static int cifs_unicode_bytelen(char *str) int len; __le16 * ustr = (__le16 *)str; - for(len=0;len <= PATH_MAX;len++) { + for (len = 0; len <= PATH_MAX; len++) { if (ustr[len] == 0) return len << 1; } - cFYI(1,("Unicode string longer than PATH_MAX found")); + cFYI(1, ("Unicode string longer than PATH_MAX found")); return len << 1; } static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) { - char * new_entry; + char *new_entry; FILE_DIRECTORY_INFO * pDirInfo = (FILE_DIRECTORY_INFO *)old_entry; if (level == SMB_FIND_FILE_INFO_STANDARD) { @@ -516,21 +518,21 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) pfData->FileNameLength; } else new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset); - cFYI(1,("new entry %p old entry %p",new_entry,old_entry)); + cFYI(1, ("new entry %p old entry %p", new_entry, old_entry)); /* validate that new_entry is not past end of SMB */ if (new_entry >= end_of_smb) { cERROR(1, ("search entry %p began after end of SMB %p old entry %p", - new_entry, end_of_smb, old_entry)); + new_entry, end_of_smb, old_entry)); return NULL; } else if (((level == SMB_FIND_FILE_INFO_STANDARD) && - (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb)) || - ((level != SMB_FIND_FILE_INFO_STANDARD) && + (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb)) + || ((level != SMB_FIND_FILE_INFO_STANDARD) && (new_entry + sizeof(FILE_DIRECTORY_INFO) > end_of_smb))) { - cERROR(1,("search entry %p extends after end of SMB %p", + cERROR(1, ("search entry %p extends after end of SMB %p", new_entry, end_of_smb)); return NULL; - } else + } else return new_entry; } @@ -541,8 +543,8 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level) static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) { int rc = 0; - char * filename = NULL; - int len = 0; + char *filename = NULL; + int len = 0; if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; @@ -554,25 +556,25 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) len = strnlen(filename, 5); } } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + FILE_DIRECTORY_INFO * pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if (cfile->srch_inf.info_level == + } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + FILE_FULL_DIRECTORY_INFO * pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + SEARCH_ID_FULL_DIR_INFO * pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if (cfile->srch_inf.info_level == + } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + FILE_BOTH_DIRECTORY_INFO * pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); @@ -582,7 +584,8 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) filename = &pFindData->FileName[0]; len = pFindData->FileNameLength; } else { - cFYI(1,("Unknown findfirst level %d",cfile->srch_inf.info_level)); + cFYI(1, ("Unknown findfirst level %d", + cfile->srch_inf.info_level)); } if (filename) { @@ -595,15 +598,15 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) } else if (len == 4) { /* check for .. */ if ((ufilename[0] == UNICODE_DOT) - &&(ufilename[1] == UNICODE_DOT)) + && (ufilename[1] == UNICODE_DOT)) rc = 2; } } else /* ASCII */ { if (len == 1) { - if (filename[0] == '.') + if (filename[0] == '.') rc = 1; } else if (len == 2) { - if((filename[0] == '.') && (filename[1] == '.')) + if ((filename[0] == '.') && (filename[1] == '.')) rc = 2; } } @@ -614,7 +617,7 @@ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) /* Check if directory that we are searching has changed so we can decide whether we can use the cached search results from the previous search */ -static int is_dir_changed(struct file * file) +static int is_dir_changed(struct file *file) { struct inode *inode = file->f_path.dentry->d_inode; struct cifsInodeInfo *cifsInfo = CIFS_I(inode); @@ -633,22 +636,22 @@ static int is_dir_changed(struct file * file) /* We start counting in the buffer with entry 2 and increment for every entry (do not increment for . or .. entry) */ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, - struct file *file, char **ppCurrentEntry, int *num_to_ret) + struct file *file, char **ppCurrentEntry, int *num_to_ret) { int rc = 0; int pos_in_buf = 0; loff_t first_entry_in_buffer; loff_t index_to_find = file->f_pos; - struct cifsFileInfo * cifsFile = file->private_data; + struct cifsFileInfo *cifsFile = file->private_data; /* check if index in the buffer */ - - if ((cifsFile == NULL) || (ppCurrentEntry == NULL) || + + if ((cifsFile == NULL) || (ppCurrentEntry == NULL) || (num_to_ret == NULL)) return -ENOENT; - + *ppCurrentEntry = NULL; - first_entry_in_buffer = - cifsFile->srch_inf.index_of_last_entry - + first_entry_in_buffer = + cifsFile->srch_inf.index_of_last_entry - cifsFile->srch_inf.entries_in_buffer; /* if first entry in buf is zero then is first buffer @@ -660,17 +663,17 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, #ifdef CONFIG_CIFS_DEBUG2 dump_cifs_file_struct(file, "In fce "); #endif - if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) && - is_dir_changed(file)) || + if (((index_to_find < cifsFile->srch_inf.index_of_last_entry) && + is_dir_changed(file)) || (index_to_find < first_entry_in_buffer)) { /* close and restart search */ - cFYI(1,("search backing up - close and restart search")); + cFYI(1, ("search backing up - close and restart search")); cifsFile->invalidHandle = TRUE; CIFSFindClose(xid, pTcon, cifsFile->netfid); kfree(cifsFile->search_resume_name); cifsFile->search_resume_name = NULL; if (cifsFile->srch_inf.ntwrk_buf_start) { - cFYI(1,("freeing SMB ff cache buf on search rewind")); + cFYI(1, ("freeing SMB ff cache buf on search rewind")); if (cifsFile->srch_inf.smallBuf) cifs_small_buf_release(cifsFile->srch_inf. ntwrk_buf_start); @@ -678,17 +681,18 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, cifs_buf_release(cifsFile->srch_inf. ntwrk_buf_start); } - rc = initiate_cifs_search(xid,file); + rc = initiate_cifs_search(xid, file); if (rc) { - cFYI(1,("error %d reinitiating a search on rewind",rc)); + cFYI(1, ("error %d reinitiating a search on rewind", + rc)); return rc; } } - while((index_to_find >= cifsFile->srch_inf.index_of_last_entry) && - (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)){ - cFYI(1,("calling findnext2")); - rc = CIFSFindNext(xid,pTcon,cifsFile->netfid, + while ((index_to_find >= cifsFile->srch_inf.index_of_last_entry) && + (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)) { + cFYI(1, ("calling findnext2")); + rc = CIFSFindNext(xid, pTcon, cifsFile->netfid, &cifsFile->srch_inf); if (rc) return -ENOENT; @@ -697,8 +701,8 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, /* we found the buffer that contains the entry */ /* scan and find it */ int i; - char * current_entry; - char * end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + + char *current_entry; + char *end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + smbCalcSize((struct smb_hdr *) cifsFile->srch_inf.ntwrk_buf_start); @@ -706,28 +710,28 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, first_entry_in_buffer = cifsFile->srch_inf.index_of_last_entry - cifsFile->srch_inf.entries_in_buffer; pos_in_buf = index_to_find - first_entry_in_buffer; - cFYI(1,("found entry - pos_in_buf %d",pos_in_buf)); + cFYI(1, ("found entry - pos_in_buf %d", pos_in_buf)); - for(i=0;(i<(pos_in_buf)) && (current_entry != NULL);i++) { + for (i=0; (i < (pos_in_buf)) && (current_entry != NULL); i++) { /* go entry by entry figuring out which is first */ - current_entry = nxt_dir_entry(current_entry,end_of_smb, + current_entry = nxt_dir_entry(current_entry, end_of_smb, cifsFile->srch_inf.info_level); } - if((current_entry == NULL) && (i < pos_in_buf)) { + if ((current_entry == NULL) && (i < pos_in_buf)) { /* BB fixme - check if we should flag this error */ - cERROR(1,("reached end of buf searching for pos in buf" + cERROR(1, ("reached end of buf searching for pos in buf" " %d index to find %lld rc %d", - pos_in_buf,index_to_find,rc)); + pos_in_buf, index_to_find, rc)); } rc = 0; *ppCurrentEntry = current_entry; } else { - cFYI(1,("index not in buffer - could not findnext into it")); + cFYI(1, ("index not in buffer - could not findnext into it")); return 0; } - if(pos_in_buf >= cifsFile->srch_inf.entries_in_buffer) { - cFYI(1,("can not return entries pos_in_buf beyond last entry")); + if (pos_in_buf >= cifsFile->srch_inf.entries_in_buffer) { + cFYI(1, ("can not return entries pos_in_buf beyond last")); *num_to_ret = 0; } else *num_to_ret = cifsFile->srch_inf.entries_in_buffer - pos_in_buf; @@ -738,81 +742,81 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon, /* inode num, inode type and filename returned */ static int cifs_get_name_from_search_buf(struct qstr *pqst, char *current_entry, __u16 level, unsigned int unicode, - struct cifs_sb_info * cifs_sb, int max_len, ino_t *pinum) + struct cifs_sb_info *cifs_sb, int max_len, ino_t *pinum) { int rc = 0; unsigned int len = 0; - char * filename; - struct nls_table * nlt = cifs_sb->local_nls; + char *filename; + struct nls_table *nlt = cifs_sb->local_nls; *pinum = 0; - if(level == SMB_FIND_FILE_UNIX) { - FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; + if (level == SMB_FIND_FILE_UNIX) { + FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; - if(unicode) { + if (unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, PATH_MAX); } - /* BB fixme - hash low and high 32 bits if not 64 bit arch BB fixme */ - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) + /* BB fixme - hash low and high 32 bits if not 64 bit arch BB */ + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) *pinum = pFindData->UniqueId; - } else if(level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { + FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { + FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { + SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); *pinum = pFindData->UniqueId; - } else if(level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { + FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); - } else if(level == SMB_FIND_FILE_INFO_STANDARD) { + } else if (level == SMB_FIND_FILE_INFO_STANDARD) { FIND_FILE_STANDARD_INFO * pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ len = (unsigned int)pFindData->FileNameLength; } else { - cFYI(1,("Unknown findfirst level %d",level)); + cFYI(1, ("Unknown findfirst level %d", level)); return -EINVAL; } - if(len > max_len) { - cERROR(1,("bad search response length %d past smb end", len)); + if (len > max_len) { + cERROR(1, ("bad search response length %d past smb end", len)); return -EINVAL; } - if(unicode) { + if (unicode) { /* BB fixme - test with long names */ /* Note converted filename can be longer than in unicode */ - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR) pqst->len = cifs_convertUCSpath((char *)pqst->name, (__le16 *)filename, len/2, nlt); else pqst->len = cifs_strfromUCS_le((char *)pqst->name, - (__le16 *)filename,len/2,nlt); + (__le16 *)filename, len/2, nlt); } else { pqst->name = filename; pqst->len = len; } - pqst->hash = full_name_hash(pqst->name,pqst->len); -/* cFYI(1,("filldir on %s",pqst->name)); */ + pqst->hash = full_name_hash(pqst->name, pqst->len); +/* cFYI(1, ("filldir on %s",pqst->name)); */ return rc; } @@ -821,49 +825,50 @@ static int cifs_filldir(char *pfindEntry, struct file *file, { int rc = 0; struct qstr qstring; - struct cifsFileInfo * pCifsF; + struct cifsFileInfo *pCifsF; unsigned obj_type; ino_t inum; - struct cifs_sb_info * cifs_sb; + struct cifs_sb_info *cifs_sb; struct inode *tmp_inode; struct dentry *tmp_dentry; /* get filename and len into qstring */ /* get dentry */ /* decide whether to create and populate ionde */ - if((direntry == NULL) || (file == NULL)) + if ((direntry == NULL) || (file == NULL)) return -EINVAL; pCifsF = file->private_data; - - if((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL)) + + if ((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL)) return -ENOENT; - rc = cifs_entry_is_dot(pfindEntry,pCifsF); + rc = cifs_entry_is_dot(pfindEntry, pCifsF); /* skip . and .. since we added them first */ - if(rc != 0) + if (rc != 0) return 0; cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); qstring.name = scratch_buf; - rc = cifs_get_name_from_search_buf(&qstring,pfindEntry, + rc = cifs_get_name_from_search_buf(&qstring, pfindEntry, pCifsF->srch_inf.info_level, - pCifsF->srch_inf.unicode,cifs_sb, + pCifsF->srch_inf.unicode, cifs_sb, max_len, &inum /* returned */); - if(rc) + if (rc) return rc; - rc = construct_dentry(&qstring,file,&tmp_inode, &tmp_dentry); - if((tmp_inode == NULL) || (tmp_dentry == NULL)) + rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry); + if ((tmp_inode == NULL) || (tmp_dentry == NULL)) return -ENOMEM; - if(rc) { + if (rc) { /* inode created, we need to hash it with right inode number */ - if(inum != 0) { - /* BB fixme - hash the 2 32 quantities bits together if necessary BB */ + if (inum != 0) { + /* BB fixme - hash the 2 32 quantities bits together if + * necessary BB */ tmp_inode->i_ino = inum; } insert_inode_hash(tmp_inode); @@ -872,27 +877,27 @@ static int cifs_filldir(char *pfindEntry, struct file *file, /* we pass in rc below, indicating whether it is a new inode, so we can figure out whether to invalidate the inode cached data if the file has changed */ - if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) + if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) unix_fill_in_inode(tmp_inode, (FILE_UNIX_INFO *)pfindEntry, &obj_type, rc); - else if(pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) + else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) fill_in_inode(tmp_inode, 0 /* old level 1 buffer type */, pfindEntry, &obj_type, rc); else fill_in_inode(tmp_inode, 1 /* NT */, pfindEntry, &obj_type, rc); - if(rc) /* new inode - needs to be tied to dentry */ { + if (rc) /* new inode - needs to be tied to dentry */ { d_instantiate(tmp_dentry, tmp_inode); - if(rc == 2) + if (rc == 2) d_rehash(tmp_dentry); } - - - rc = filldir(direntry,qstring.name,qstring.len,file->f_pos, - tmp_inode->i_ino,obj_type); - if(rc) { - cFYI(1,("filldir rc = %d",rc)); + + + rc = filldir(direntry, qstring.name, qstring.len, file->f_pos, + tmp_inode->i_ino, obj_type); + if (rc) { + cFYI(1, ("filldir rc = %d", rc)); /* we can not return filldir errors to the caller since they are "normal" when the stat blocksize is too small - we return remapped error instead */ @@ -909,57 +914,57 @@ static int cifs_save_resume_key(const char *current_entry, int rc = 0; unsigned int len = 0; __u16 level; - char * filename; + char *filename; - if((cifsFile == NULL) || (current_entry == NULL)) + if ((cifsFile == NULL) || (current_entry == NULL)) return -EINVAL; level = cifsFile->srch_inf.info_level; - if(level == SMB_FIND_FILE_UNIX) { + if (level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; - if(cifsFile->srch_inf.unicode) { + if (cifsFile->srch_inf.unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, PATH_MAX); } cifsFile->srch_inf.resume_key = pFindData->ResumeKey; - } else if(level == SMB_FIND_FILE_DIRECTORY_INFO) { - FILE_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { + FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { - FILE_FULL_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { + FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { - SEARCH_ID_FULL_DIR_INFO * pFindData = + } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { + SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { - FILE_BOTH_DIRECTORY_INFO * pFindData = + } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { + FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; - } else if(level == SMB_FIND_FILE_INFO_STANDARD) { - FIND_FILE_STANDARD_INFO * pFindData = + } else if (level == SMB_FIND_FILE_INFO_STANDARD) { + FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ len = (unsigned int)pFindData->FileNameLength; cifsFile->srch_inf.resume_key = pFindData->ResumeKey; } else { - cFYI(1,("Unknown findfirst level %d",level)); + cFYI(1, ("Unknown findfirst level %d", level)); return -EINVAL; } cifsFile->srch_inf.resume_name_len = len; @@ -970,21 +975,21 @@ static int cifs_save_resume_key(const char *current_entry, int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) { int rc = 0; - int xid,i; + int xid, i; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; struct cifsFileInfo *cifsFile = NULL; - char * current_entry; + char *current_entry; int num_to_fill = 0; - char * tmp_buf = NULL; - char * end_of_smb; + char *tmp_buf = NULL; + char *end_of_smb; int max_len; xid = GetXid(); cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); pTcon = cifs_sb->tcon; - if(pTcon == NULL) + if (pTcon == NULL) return -EINVAL; switch ((int) file->f_pos) { @@ -1005,27 +1010,27 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) } file->f_pos++; default: - /* 1) If search is active, - is in current search buffer? + /* 1) If search is active, + is in current search buffer? if it before then restart search if after then keep searching till find it */ - if(file->private_data == NULL) { - rc = initiate_cifs_search(xid,file); - cFYI(1,("initiate cifs search rc %d",rc)); - if(rc) { + if (file->private_data == NULL) { + rc = initiate_cifs_search(xid, file); + cFYI(1, ("initiate cifs search rc %d", rc)); + if (rc) { FreeXid(xid); return rc; } } - if(file->private_data == NULL) { + if (file->private_data == NULL) { rc = -EINVAL; FreeXid(xid); return rc; } cifsFile = file->private_data; if (cifsFile->srch_inf.endOfSearch) { - if(cifsFile->srch_inf.emptyDir) { + if (cifsFile->srch_inf.emptyDir) { cFYI(1, ("End of search, empty dir")); rc = 0; break; @@ -1033,23 +1038,23 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) } /* else { cifsFile->invalidHandle = TRUE; CIFSFindClose(xid, pTcon, cifsFile->netfid); - } + } kfree(cifsFile->search_resume_name); cifsFile->search_resume_name = NULL; */ - rc = find_cifs_entry(xid,pTcon, file, - ¤t_entry,&num_to_fill); - if(rc) { - cFYI(1,("fce error %d",rc)); + rc = find_cifs_entry(xid, pTcon, file, + ¤t_entry, &num_to_fill); + if (rc) { + cFYI(1, ("fce error %d", rc)); goto rddir2_exit; } else if (current_entry != NULL) { - cFYI(1,("entry %lld found",file->f_pos)); + cFYI(1, ("entry %lld found", file->f_pos)); } else { - cFYI(1,("could not find entry")); + cFYI(1, ("could not find entry")); goto rddir2_exit; } - cFYI(1,("loop through %d times filling dir for net buf %p", - num_to_fill,cifsFile->srch_inf.ntwrk_buf_start)); + cFYI(1, ("loop through %d times filling dir for net buf %p", + num_to_fill, cifsFile->srch_inf.ntwrk_buf_start)); max_len = smbCalcSize((struct smb_hdr *) cifsFile->srch_inf.ntwrk_buf_start); end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + max_len; @@ -1059,8 +1064,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) such multibyte target UTF-8 characters. cifs_unicode.c, which actually does the conversion, has the same limit */ tmp_buf = kmalloc((2 * NAME_MAX) + 4, GFP_KERNEL); - for(i=0;(i<num_to_fill) && (rc == 0);i++) { - if(current_entry == NULL) { + for (i = 0; (i < num_to_fill) && (rc == 0); i++) { + if (current_entry == NULL) { /* evaluate whether this case is an error */ cERROR(1,("past end of SMB num to fill %d i %d", num_to_fill, i)); @@ -1070,20 +1075,20 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir) we want to check for that here? */ rc = cifs_filldir(current_entry, file, filldir, direntry, tmp_buf, max_len); - if(rc == -EOVERFLOW) { + if (rc == -EOVERFLOW) { rc = 0; break; } file->f_pos++; - if(file->f_pos == + if (file->f_pos == cifsFile->srch_inf.index_of_last_entry) { - cFYI(1,("last entry in buf at pos %lld %s", - file->f_pos,tmp_buf)); - cifs_save_resume_key(current_entry,cifsFile); + cFYI(1, ("last entry in buf at pos %lld %s", + file->f_pos, tmp_buf)); + cifs_save_resume_key(current_entry, cifsFile); break; - } else - current_entry = + } else + current_entry = nxt_dir_entry(current_entry, end_of_smb, cifsFile->srch_inf.info_level); } diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 758464630893..2ea027dda215 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -3,7 +3,7 @@ * * SMB/CIFS session setup handling routines * - * Copyright (c) International Business Machines Corp., 2006 + * Copyright (c) International Business Machines Corp., 2006, 2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -31,7 +31,7 @@ #include <linux/utsname.h> extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, - unsigned char *p24); + unsigned char *p24); static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) { @@ -45,13 +45,14 @@ static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) /* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */ - /* BB verify whether signing required on neg or just on auth frame + /* BB verify whether signing required on neg or just on auth frame (and NTLM case) */ capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | CAP_LARGE_WRITE_X | CAP_LARGE_READ_X; - if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) + if (ses->server->secMode & + (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) pSMB->req.hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; if (ses->capabilities & CAP_UNICODE) { @@ -74,10 +75,10 @@ static __u32 cifs_ssetup_hdr(struct cifsSesInfo *ses, SESSION_SETUP_ANDX *pSMB) return capabilities; } -static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static void unicode_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { - char * bcc_ptr = *pbcc_area; + char *bcc_ptr = *pbcc_area; int bytes_ret = 0; /* BB FIXME add check that strings total less @@ -89,7 +90,7 @@ static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, bcc_ptr++; } */ /* copy user */ - if(ses->userName == NULL) { + if (ses->userName == NULL) { /* null user mount */ *bcc_ptr = 0; *(bcc_ptr+1) = 0; @@ -100,14 +101,14 @@ static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* account for null termination */ /* copy domain */ - if(ses->domainName == NULL) { + if (ses->domainName == NULL) { /* Sending null domain better than using a bogus domain name (as we did briefly in 2.6.18) since server will use its default */ *bcc_ptr = 0; *(bcc_ptr+1) = 0; bytes_ret = 0; } else - bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->domainName, + bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, ses->domainName, 256, nls_cp); bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* account for null terminator */ @@ -122,37 +123,37 @@ static void unicode_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, bcc_ptr += 2; /* trailing null */ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, - 32, nls_cp); + 32, nls_cp); bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* trailing null */ *pbcc_area = bcc_ptr; } -static void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static void ascii_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { - char * bcc_ptr = *pbcc_area; + char *bcc_ptr = *pbcc_area; /* copy user */ /* BB what about null user mounts - check that we do this BB */ - /* copy user */ - if(ses->userName == NULL) { - /* BB what about null user mounts - check that we do this BB */ - } else { /* 300 should be long enough for any conceivable user name */ - strncpy(bcc_ptr, ses->userName, 300); - } + /* copy user */ + if (ses->userName == NULL) { + /* BB what about null user mounts - check that we do this BB */ + } else { /* 300 should be long enough for any conceivable user name */ + strncpy(bcc_ptr, ses->userName, 300); + } /* BB improve check for overflow */ - bcc_ptr += strnlen(ses->userName, 300); + bcc_ptr += strnlen(ses->userName, 300); *bcc_ptr = 0; - bcc_ptr++; /* account for null termination */ + bcc_ptr++; /* account for null termination */ - /* copy domain */ - - if(ses->domainName != NULL) { - strncpy(bcc_ptr, ses->domainName, 256); + /* copy domain */ + + if (ses->domainName != NULL) { + strncpy(bcc_ptr, ses->domainName, 256); bcc_ptr += strnlen(ses->domainName, 256); - } /* else we will send a null domain name + } /* else we will send a null domain name so the server will default to its own domain */ *bcc_ptr = 0; bcc_ptr++; @@ -167,19 +168,20 @@ static void ascii_ssetup_strings(char ** pbcc_area, struct cifsSesInfo *ses, strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; - *pbcc_area = bcc_ptr; + *pbcc_area = bcc_ptr; } -static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static int decode_unicode_ssetup(char **pbcc_area, int bleft, + struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { int rc = 0; int words_left, len; - char * data = *pbcc_area; + char *data = *pbcc_area; - cFYI(1,("bleft %d",bleft)); + cFYI(1, ("bleft %d", bleft)); /* SMB header is unaligned, so cifs servers word align start of @@ -189,7 +191,7 @@ static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInf their final Unicode string - in which case we now will not attempt to decode the byte of junk which follows it */ - + words_left = bleft / 2; /* save off server operating system */ @@ -198,14 +200,14 @@ static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInf /* We look for obvious messed up bcc or strings in response so we do not go off the end since (at least) WIN2K and Windows XP have a major bug in not null terminating last Unicode string in response */ - if(len >= words_left) + if (len >= words_left) return rc; - if(ses->serverOS) + if (ses->serverOS) kfree(ses->serverOS); /* UTF-8 string will not grow more than four times as big as UCS-16 */ ses->serverOS = kzalloc(4 * len, GFP_KERNEL); - if(ses->serverOS != NULL) { + if (ses->serverOS != NULL) { cifs_strfromUCS_le(ses->serverOS, (__le16 *)data, len, nls_cp); } @@ -215,67 +217,68 @@ static int decode_unicode_ssetup(char ** pbcc_area, int bleft, struct cifsSesInf /* save off server network operating system */ len = UniStrnlen((wchar_t *) data, words_left); - if(len >= words_left) + if (len >= words_left) return rc; - if(ses->serverNOS) + if (ses->serverNOS) kfree(ses->serverNOS); ses->serverNOS = kzalloc(4 * len, GFP_KERNEL); /* BB this is wrong length FIXME BB */ - if(ses->serverNOS != NULL) { + if (ses->serverNOS != NULL) { cifs_strfromUCS_le(ses->serverNOS, (__le16 *)data, len, nls_cp); - if(strncmp(ses->serverNOS, "NT LAN Manager 4",16) == 0) { - cFYI(1,("NT4 server")); + if (strncmp(ses->serverNOS, "NT LAN Manager 4", 16) == 0) { + cFYI(1, ("NT4 server")); ses->flags |= CIFS_SES_NT4; } } data += 2 * (len + 1); words_left -= len + 1; - /* save off server domain */ - len = UniStrnlen((wchar_t *) data, words_left); - - if(len > words_left) - return rc; - - if(ses->serverDomain) - kfree(ses->serverDomain); - ses->serverDomain = kzalloc(2 * (len + 1), GFP_KERNEL); /* BB FIXME wrong length */ - if(ses->serverDomain != NULL) { - cifs_strfromUCS_le(ses->serverDomain, (__le16 *)data, len, - nls_cp); - ses->serverDomain[2*len] = 0; - ses->serverDomain[(2*len) + 1] = 0; - } - data += 2 * (len + 1); - words_left -= len + 1; - - cFYI(1,("words left: %d",words_left)); + /* save off server domain */ + len = UniStrnlen((wchar_t *) data, words_left); + + if (len > words_left) + return rc; + + if (ses->serverDomain) + kfree(ses->serverDomain); + ses->serverDomain = kzalloc(2 * (len + 1), GFP_KERNEL); /* BB FIXME wrong length */ + if (ses->serverDomain != NULL) { + cifs_strfromUCS_le(ses->serverDomain, (__le16 *)data, len, + nls_cp); + ses->serverDomain[2*len] = 0; + ses->serverDomain[(2*len) + 1] = 0; + } + data += 2 * (len + 1); + words_left -= len + 1; + + cFYI(1, ("words left: %d", words_left)); return rc; } -static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo *ses, - const struct nls_table * nls_cp) +static int decode_ascii_ssetup(char **pbcc_area, int bleft, + struct cifsSesInfo *ses, + const struct nls_table *nls_cp) { int rc = 0; int len; - char * bcc_ptr = *pbcc_area; + char *bcc_ptr = *pbcc_area; + + cFYI(1, ("decode sessetup ascii. bleft %d", bleft)); - cFYI(1,("decode sessetup ascii. bleft %d", bleft)); - len = strnlen(bcc_ptr, bleft); - if(len >= bleft) + if (len >= bleft) return rc; - - if(ses->serverOS) + + if (ses->serverOS) kfree(ses->serverOS); ses->serverOS = kzalloc(len + 1, GFP_KERNEL); - if(ses->serverOS) + if (ses->serverOS) strncpy(ses->serverOS, bcc_ptr, len); - if(strncmp(ses->serverOS, "OS/2",4) == 0) { - cFYI(1,("OS/2 server")); + if (strncmp(ses->serverOS, "OS/2", 4) == 0) { + cFYI(1, ("OS/2 server")); ses->flags |= CIFS_SES_OS2; } @@ -283,34 +286,34 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo bleft -= len + 1; len = strnlen(bcc_ptr, bleft); - if(len >= bleft) + if (len >= bleft) return rc; - if(ses->serverNOS) + if (ses->serverNOS) kfree(ses->serverNOS); ses->serverNOS = kzalloc(len + 1, GFP_KERNEL); - if(ses->serverNOS) + if (ses->serverNOS) strncpy(ses->serverNOS, bcc_ptr, len); bcc_ptr += len + 1; bleft -= len + 1; - len = strnlen(bcc_ptr, bleft); - if(len > bleft) - return rc; + len = strnlen(bcc_ptr, bleft); + if (len > bleft) + return rc; /* No domain field in LANMAN case. Domain is returned by old servers in the SMB negprot response */ /* BB For newer servers which do not support Unicode, but thus do return domain here we could add parsing for it later, but it is not very important */ - cFYI(1,("ascii: bytes left %d",bleft)); + cFYI(1, ("ascii: bytes left %d", bleft)); return rc; } -int +int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, const struct nls_table *nls_cp) { @@ -328,13 +331,13 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, __u16 action; int bytes_remaining; - if(ses == NULL) + if (ses == NULL) return -EINVAL; type = ses->server->secType; - cFYI(1,("sess setup type %d",type)); - if(type == LANMAN) { + cFYI(1, ("sess setup type %d", type)); + if (type == LANMAN) { #ifndef CONFIG_CIFS_WEAK_PW_HASH /* LANMAN and plaintext are less secure and off by default. So we make this explicitly be turned on in kconfig (in the @@ -344,15 +347,15 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, return -EOPNOTSUPP; #endif wct = 10; /* lanman 2 style sessionsetup */ - } else if((type == NTLM) || (type == NTLMv2)) { + } else if ((type == NTLM) || (type == NTLMv2)) { /* For NTLMv2 failures eventually may need to retry NTLM */ wct = 13; /* old style NTLM sessionsetup */ - } else /* same size for negotiate or auth, NTLMSSP or extended security */ + } else /* same size: negotiate or auth, NTLMSSP or extended security */ wct = 12; rc = small_smb_init_no_tc(SMB_COM_SESSION_SETUP_ANDX, wct, ses, (void **)&smb_buf); - if(rc) + if (rc) return rc; pSMB = (SESSION_SETUP_ANDX *)smb_buf; @@ -364,8 +367,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, second part which will include the strings and rest of bcc area, in order to avoid having to do a large buffer 17K allocation */ - iov[0].iov_base = (char *)pSMB; - iov[0].iov_len = smb_buf->smb_buf_length + 4; + iov[0].iov_base = (char *)pSMB; + iov[0].iov_len = smb_buf->smb_buf_length + 4; /* 2000 big enough to fit max user, domain, NOS name etc. */ str_area = kmalloc(2000, GFP_KERNEL); @@ -373,18 +376,18 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, ses->flags &= ~CIFS_SES_LANMAN; - if(type == LANMAN) { + if (type == LANMAN) { #ifdef CONFIG_CIFS_WEAK_PW_HASH char lnm_session_key[CIFS_SESS_KEY_SIZE]; /* no capabilities flags in old lanman negotiation */ - pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); + pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); /* BB calculate hash with password */ /* and copy into bcc */ calc_lanman_hash(ses, lnm_session_key); - ses->flags |= CIFS_SES_LANMAN; + ses->flags |= CIFS_SES_LANMAN; /* #ifdef CONFIG_CIFS_DEBUG2 cifs_dump_mem("cryptkey: ",ses->server->cryptKey, CIFS_SESS_KEY_SIZE); @@ -397,10 +400,10 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, changed to do higher than lanman dialect and we reconnected would we ever calc signing_key? */ - cFYI(1,("Negotiating LANMAN setting up strings")); + cFYI(1, ("Negotiating LANMAN setting up strings")); /* Unicode not allowed for LANMAN dialects */ ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); -#endif +#endif } else if (type == NTLM) { char ntlm_session_key[CIFS_SESS_KEY_SIZE]; @@ -409,38 +412,38 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, cpu_to_le16(CIFS_SESS_KEY_SIZE); pSMB->req_no_secext.CaseSensitivePasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); - + /* calculate session key */ SMBNTencrypt(ses->password, ses->server->cryptKey, ntlm_session_key); - if(first_time) /* should this be moved into common code + if (first_time) /* should this be moved into common code with similar ntlmv2 path? */ - cifs_calculate_mac_key(ses->server->mac_signing_key, + cifs_calculate_mac_key(&ses->server->mac_signing_key, ntlm_session_key, ses->password); /* copy session key */ - memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESS_KEY_SIZE); + memcpy(bcc_ptr, (char *)ntlm_session_key, CIFS_SESS_KEY_SIZE); bcc_ptr += CIFS_SESS_KEY_SIZE; - memcpy(bcc_ptr, (char *)ntlm_session_key,CIFS_SESS_KEY_SIZE); + memcpy(bcc_ptr, (char *)ntlm_session_key, CIFS_SESS_KEY_SIZE); bcc_ptr += CIFS_SESS_KEY_SIZE; - if(ses->capabilities & CAP_UNICODE) { + if (ses->capabilities & CAP_UNICODE) { /* unicode strings must be word aligned */ if (iov[0].iov_len % 2) { *bcc_ptr = 0; - bcc_ptr++; - } + bcc_ptr++; + } unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); } else ascii_ssetup_strings(&bcc_ptr, ses, nls_cp); } else if (type == NTLMv2) { - char * v2_sess_key = + char *v2_sess_key = kmalloc(sizeof(struct ntlmv2_resp), GFP_KERNEL); /* BB FIXME change all users of v2_sess_key to struct ntlmv2_resp */ - if(v2_sess_key == NULL) { + if (v2_sess_key == NULL) { cifs_small_buf_release(smb_buf); return -ENOMEM; } @@ -456,8 +459,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, /* calculate session key */ setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp); - if(first_time) /* should this be moved into common code - with similar ntlmv2 path? */ + if (first_time) /* should this be moved into common code + with similar ntlmv2 path? */ /* cifs_calculate_ntlmv2_mac_key(ses->server->mac_signing_key, response BB FIXME, v2_sess_key); */ @@ -465,11 +468,12 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, /* memcpy(bcc_ptr, (char *)ntlm_session_key,LM2_SESS_KEY_SIZE); bcc_ptr += LM2_SESS_KEY_SIZE; */ - memcpy(bcc_ptr, (char *)v2_sess_key, sizeof(struct ntlmv2_resp)); + memcpy(bcc_ptr, (char *)v2_sess_key, + sizeof(struct ntlmv2_resp)); bcc_ptr += sizeof(struct ntlmv2_resp); kfree(v2_sess_key); - if(ses->capabilities & CAP_UNICODE) { - if(iov[0].iov_len % 2) { + if (ses->capabilities & CAP_UNICODE) { + if (iov[0].iov_len % 2) { *bcc_ptr = 0; } bcc_ptr++; unicode_ssetup_strings(&bcc_ptr, ses, nls_cp); @@ -488,20 +492,20 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, BCC_LE(smb_buf) = cpu_to_le16(count); iov[1].iov_base = str_area; - iov[1].iov_len = count; + iov[1].iov_len = count; rc = SendReceive2(xid, ses, iov, 2 /* num_iovecs */, &resp_buf_type, 0); /* SMB request buf freed in SendReceive2 */ - cFYI(1,("ssetup rc from sendrecv2 is %d",rc)); - if(rc) + cFYI(1, ("ssetup rc from sendrecv2 is %d", rc)); + if (rc) goto ssetup_exit; pSMB = (SESSION_SETUP_ANDX *)iov[0].iov_base; smb_buf = (struct smb_hdr *)iov[0].iov_base; - if((smb_buf->WordCount != 3) && (smb_buf->WordCount != 4)) { + if ((smb_buf->WordCount != 3) && (smb_buf->WordCount != 4)) { rc = -EIO; - cERROR(1,("bad word count %d", smb_buf->WordCount)); + cERROR(1, ("bad word count %d", smb_buf->WordCount)); goto ssetup_exit; } action = le16_to_cpu(pSMB->resp.Action); @@ -514,31 +518,32 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, bytes_remaining = BCC(smb_buf); bcc_ptr = pByteArea(smb_buf); - if(smb_buf->WordCount == 4) { + if (smb_buf->WordCount == 4) { __u16 blob_len; blob_len = le16_to_cpu(pSMB->resp.SecurityBlobLength); bcc_ptr += blob_len; - if(blob_len > bytes_remaining) { - cERROR(1,("bad security blob length %d", blob_len)); + if (blob_len > bytes_remaining) { + cERROR(1, ("bad security blob length %d", blob_len)); rc = -EINVAL; goto ssetup_exit; } bytes_remaining -= blob_len; - } + } /* BB check if Unicode and decode strings */ - if(smb_buf->Flags2 & SMBFLG2_UNICODE) + if (smb_buf->Flags2 & SMBFLG2_UNICODE) rc = decode_unicode_ssetup(&bcc_ptr, bytes_remaining, ses, nls_cp); else - rc = decode_ascii_ssetup(&bcc_ptr, bytes_remaining, ses,nls_cp); - + rc = decode_ascii_ssetup(&bcc_ptr, bytes_remaining, + ses, nls_cp); + ssetup_exit: kfree(str_area); - if(resp_buf_type == CIFS_SMALL_BUFFER) { - cFYI(1,("ssetup freeing small buf %p", iov[0].iov_base)); + if (resp_buf_type == CIFS_SMALL_BUFFER) { + cFYI(1, ("ssetup freeing small buf %p", iov[0].iov_base)); cifs_small_buf_release(iov[0].iov_base); - } else if(resp_buf_type == CIFS_LARGE_BUFFER) + } else if (resp_buf_type == CIFS_LARGE_BUFFER) cifs_buf_release(iov[0].iov_base); return rc; diff --git a/fs/cifs/smbdes.c b/fs/cifs/smbdes.c index 1b1daf63f062..cfa6d21fb4e8 100644 --- a/fs/cifs/smbdes.c +++ b/fs/cifs/smbdes.c @@ -1,32 +1,32 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. - a partial implementation of DES designed for use in the + a partial implementation of DES designed for use in the SMB authentication protocol Copyright (C) Andrew Tridgell 1998 Modified by Steve French (sfrench@us.ibm.com) 2002,2004 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* NOTES: +/* NOTES: This code makes no attempt to be fast! In fact, it is a very - slow implementation + slow implementation This code is NOT a complete DES implementation. It implements only the minimum necessary for SMB authentication, as used by all SMB @@ -153,7 +153,7 @@ static uchar sbox[8][4][16] = { }; static void -permute(char *out, char *in, uchar * p, int n) +permute(char *out, char *in, uchar *p, int n) { int i; for (i = 0; i < n; i++) @@ -202,18 +202,18 @@ dohash(char *out, char *in, char *key, int forw) char *rl; /* Have to reduce stack usage */ - pk1 = kmalloc(56+56+64+64,GFP_KERNEL); - if(pk1 == NULL) + pk1 = kmalloc(56+56+64+64, GFP_KERNEL); + if (pk1 == NULL) return; ki = kmalloc(16*48, GFP_KERNEL); - if(ki == NULL) { + if (ki == NULL) { kfree(pk1); return; } cd = pk1 + 56; - pd1= cd + 56; + pd1 = cd + 56; rl = pd1 + 64; permute(pk1, key, perm1, 56); @@ -247,7 +247,7 @@ dohash(char *out, char *in, char *key, int forw) char *r2; /* r2[32] */ er = kmalloc(48+48+32+32+32, GFP_KERNEL); - if(er == NULL) { + if (er == NULL) { kfree(pk1); kfree(ki); return; @@ -327,8 +327,8 @@ smbhash(unsigned char *out, unsigned char *in, unsigned char *key, int forw) char *keyb; /* keyb[64] */ unsigned char key2[8]; - outb = kmalloc(64 * 3,GFP_KERNEL); - if(outb == NULL) + outb = kmalloc(64 * 3, GFP_KERNEL); + if (outb == NULL) return; inb = outb + 64; diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c index 4b25ba92180d..90542a39be17 100644 --- a/fs/cifs/smbencrypt.c +++ b/fs/cifs/smbencrypt.c @@ -1,4 +1,4 @@ -/* +/* Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup @@ -7,17 +7,17 @@ Modified by Jeremy Allison 1995. Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003 Modified by Steve French (sfrench@us.ibm.com) 2002-2003 - + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. @@ -57,7 +57,7 @@ void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24); /* This implements the X/Open SMB password encryption - It takes a password, a 8 byte "crypt key" and puts 24 bytes of + It takes a password, a 8 byte "crypt key" and puts 24 bytes of encrypted password into p24 */ /* Note that password must be uppercased and null terminated */ void @@ -73,9 +73,9 @@ SMBencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24) E_P16(p14, p21); SMBOWFencrypt(p21, c8, p24); - - memset(p14,0,15); - memset(p21,0,21); + + memset(p14, 0, 15); + memset(p21, 0, 21); } /* Routines for Windows NT MD4 Hash functions. */ @@ -90,14 +90,14 @@ _my_wcslen(__u16 * str) /* * Convert a string into an NT UNICODE string. - * Note that regardless of processor type + * Note that regardless of processor type * this must be in intel (little-endian) * format. */ static int _my_mbstowcs(__u16 * dst, const unsigned char *src, int len) -{ /* not a very good conversion routine - change/fix */ +{ /* BB not a very good conversion routine - change/fix */ int i; __u16 val; @@ -112,7 +112,7 @@ _my_mbstowcs(__u16 * dst, const unsigned char *src, int len) return i; } -/* +/* * Creates the MD4 Hash of the users password in NT UNICODE. */ @@ -123,7 +123,7 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16) __u16 wpwd[129]; /* Password cannot be longer than 128 characters */ - if(passwd) { + if (passwd) { len = strlen((char *) passwd); if (len > 128) { len = 128; @@ -138,7 +138,7 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16) len = _my_wcslen(wpwd) * sizeof (__u16); mdfour(p16, (unsigned char *) wpwd, len); - memset(wpwd,0,129 * 2); + memset(wpwd, 0, 129 * 2); } #if 0 /* currently unused */ @@ -178,17 +178,17 @@ ntv2_owf_gen(const unsigned char owf[16], const char *user_n, const char *domain_n, unsigned char kr_buf[16], const struct nls_table *nls_codepage) { - wchar_t * user_u; - wchar_t * dom_u; + wchar_t *user_u; + wchar_t *dom_u; int user_l, domain_l; struct HMACMD5Context ctx; /* might as well do one alloc to hold both (user_u and dom_u) */ - user_u = kmalloc(2048 * sizeof(wchar_t),GFP_KERNEL); - if(user_u == NULL) + user_u = kmalloc(2048 * sizeof(wchar_t), GFP_KERNEL); + if (user_u == NULL) return; dom_u = user_u + 1024; - + /* push_ucs2(NULL, user_u, user_n, (user_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); push_ucs2(NULL, dom_u, domain_n, (domain_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); */ @@ -206,7 +206,7 @@ ntv2_owf_gen(const unsigned char owf[16], const char *user_n, kfree(user_u); } -#endif +#endif /* Does the des encryption from the NT or LM MD4 hash. */ static void @@ -256,15 +256,15 @@ SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24) #if 0 static void SMBOWFencrypt_ntv2(const unsigned char kr[16], - const struct data_blob * srv_chal, - const struct data_blob * cli_chal, unsigned char resp_buf[16]) + const struct data_blob *srv_chal, + const struct data_blob *cli_chal, unsigned char resp_buf[16]) { - struct HMACMD5Context ctx; + struct HMACMD5Context ctx; - hmac_md5_init_limK_to_64(kr, 16, &ctx); - hmac_md5_update(srv_chal->data, srv_chal->length, &ctx); - hmac_md5_update(cli_chal->data, cli_chal->length, &ctx); - hmac_md5_final(resp_buf, &ctx); + hmac_md5_init_limK_to_64(kr, 16, &ctx); + hmac_md5_update(srv_chal->data, srv_chal->length, &ctx); + hmac_md5_update(cli_chal->data, cli_chal->length, &ctx); + hmac_md5_final(resp_buf, &ctx); } static void diff --git a/fs/cifs/smberr.h b/fs/cifs/smberr.h index 212c3c296409..2ef0be288820 100644 --- a/fs/cifs/smberr.h +++ b/fs/cifs/smberr.h @@ -4,8 +4,8 @@ * Copyright (c) International Business Machines Corp., 2002,2004 * Author(s): Steve French (sfrench@us.ibm.com) * - * See Error Codes section of the SNIA CIFS Specification - * for more information + * See Error Codes section of the SNIA CIFS Specification + * for more information * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published @@ -19,7 +19,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define SUCCESS 0x00 /* The request was successful. */ @@ -110,7 +110,7 @@ /* Below errors are used internally (do not come over the wire) for passthrough from STATUS codes to POSIX only */ -#define ErrTooManyLinks 0xFFFE +#define ErrTooManyLinks 0xFFFE /* Following error codes may be generated with the ERRSRV error class.*/ diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 5f468459a1e2..746bc9405db1 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -1,10 +1,10 @@ /* * fs/cifs/transport.c * - * Copyright (C) International Business Machines Corp., 2002,2005 + * Copyright (C) International Business Machines Corp., 2002,2007 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) 2006. - * + * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published * by the Free Software Foundation; either version 2.1 of the License, or @@ -17,7 +17,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/fs.h> @@ -32,7 +32,7 @@ #include "cifsglob.h" #include "cifsproto.h" #include "cifs_debug.h" - + extern mempool_t *cifs_mid_poolp; extern struct kmem_cache *cifs_oplock_cachep; @@ -49,7 +49,7 @@ AllocMidQEntry(const struct smb_hdr *smb_buffer, struct cifsSesInfo *ses) cERROR(1, ("Null TCP session in AllocMidQEntry")); return NULL; } - + temp = (struct mid_q_entry *) mempool_alloc(cifs_mid_poolp, GFP_KERNEL | GFP_NOFS); if (temp == NULL) @@ -86,7 +86,7 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) list_del(&midEntry->qhead); atomic_dec(&midCount); spin_unlock(&GlobalMid_Lock); - if(midEntry->largeBuf) + if (midEntry->largeBuf) cifs_buf_release(midEntry->resp_buf); else cifs_small_buf_release(midEntry->resp_buf); @@ -94,8 +94,8 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) now = jiffies; /* commands taking longer than one second are indications that something is wrong, unless it is quite a slow link or server */ - if((now - midEntry->when_alloc) > HZ) { - if((cifsFYI & CIFS_TIMER) && + if ((now - midEntry->when_alloc) > HZ) { + if ((cifsFYI & CIFS_TIMER) && (midEntry->command != SMB_COM_LOCKING_ANDX)) { printk(KERN_DEBUG " CIFS slow rsp: cmd %d mid %d", midEntry->command, midEntry->mid); @@ -110,10 +110,10 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) } struct oplock_q_entry * -AllocOplockQEntry(struct inode * pinode, __u16 fid, struct cifsTconInfo * tcon) +AllocOplockQEntry(struct inode *pinode, __u16 fid, struct cifsTconInfo *tcon) { struct oplock_q_entry *temp; - if ((pinode== NULL) || (tcon == NULL)) { + if ((pinode == NULL) || (tcon == NULL)) { cERROR(1, ("Null parms passed to AllocOplockQEntry")); return NULL; } @@ -133,9 +133,9 @@ AllocOplockQEntry(struct inode * pinode, __u16 fid, struct cifsTconInfo * tcon) } -void DeleteOplockQEntry(struct oplock_q_entry * oplockEntry) +void DeleteOplockQEntry(struct oplock_q_entry *oplockEntry) { - spin_lock(&GlobalMid_Lock); + spin_lock(&GlobalMid_Lock); /* should we check if list empty first? */ list_del(&oplockEntry->qhead); spin_unlock(&GlobalMid_Lock); @@ -152,7 +152,7 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, struct kvec iov; unsigned len = smb_buf_length + 4; - if(ssocket == NULL) + if (ssocket == NULL) return -ENOTSOCK; /* BB eventually add reconnect code here */ iov.iov_base = smb_buffer; iov.iov_len = len; @@ -164,8 +164,8 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL; /* BB add more flags?*/ /* smb header is converted in header_assemble. bcc and rest of SMB word - area, and byte area if necessary, is converted to littleendian in - cifssmb.c and RFC1001 len is converted to bigendian in smb_send + area, and byte area if necessary, is converted to littleendian in + cifssmb.c and RFC1001 len is converted to bigendian in smb_send Flags2 is converted in SendReceive */ smb_buffer->smb_buf_length = cpu_to_be32(smb_buffer->smb_buf_length); @@ -177,9 +177,9 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, if ((rc == -ENOSPC) || (rc == -EAGAIN)) { i++; /* smaller timeout here than send2 since smaller size */ - /* Although it may not be required, this also is smaller - oplock break time */ - if(i > 12) { + /* Although it may not be required, this also is smaller + oplock break time */ + if (i > 12) { cERROR(1, ("sends on sock %p stuck for 7 seconds", ssocket)); @@ -189,7 +189,7 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, msleep(1 << i); continue; } - if (rc < 0) + if (rc < 0) break; else i = 0; /* reset i after each successful send */ @@ -199,7 +199,7 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, } if (rc < 0) { - cERROR(1,("Error %d sending data on socket to server", rc)); + cERROR(1, ("Error %d sending data on socket to server", rc)); } else { rc = 0; } @@ -223,8 +223,8 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, unsigned int total_len; int first_vec = 0; unsigned int smb_buf_length = smb_buffer->smb_buf_length; - - if(ssocket == NULL) + + if (ssocket == NULL) return -ENOTSOCK; /* BB eventually add reconnect code here */ smb_msg.msg_name = sin; @@ -234,8 +234,8 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, smb_msg.msg_flags = MSG_DONTWAIT + MSG_NOSIGNAL; /* BB add more flags?*/ /* smb header is converted in header_assemble. bcc and rest of SMB word - area, and byte area if necessary, is converted to littleendian in - cifssmb.c and RFC1001 len is converted to bigendian in smb_send + area, and byte area if necessary, is converted to littleendian in + cifssmb.c and RFC1001 len is converted to bigendian in smb_send Flags2 is converted in SendReceive */ @@ -252,7 +252,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, n_vec - first_vec, total_len); if ((rc == -ENOSPC) || (rc == -EAGAIN)) { i++; - if(i >= 14) { + if (i >= 14) { cERROR(1, ("sends on sock %p stuck for 15 seconds", ssocket)); @@ -262,17 +262,17 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, msleep(1 << i); continue; } - if (rc < 0) + if (rc < 0) break; if (rc >= total_len) { WARN_ON(rc > total_len); break; } - if(rc == 0) { + if (rc == 0) { /* should never happen, letting socket clear before retrying is our only obvious option here */ - cERROR(1,("tcp sent no data")); + cERROR(1, ("tcp sent no data")); msleep(500); continue; } @@ -295,7 +295,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, } if (rc < 0) { - cERROR(1,("Error %d sending data on socket to server", rc)); + cERROR(1, ("Error %d sending data on socket to server", rc)); } else rc = 0; @@ -308,13 +308,13 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op) { - if(long_op == -1) { + if (long_op == -1) { /* oplock breaks must not be held up */ atomic_inc(&ses->server->inFlight); } else { - spin_lock(&GlobalMid_Lock); - while(1) { - if(atomic_read(&ses->server->inFlight) >= + spin_lock(&GlobalMid_Lock); + while (1) { + if (atomic_read(&ses->server->inFlight) >= cifs_max_pending){ spin_unlock(&GlobalMid_Lock); #ifdef CONFIG_CIFS_STATS2 @@ -328,14 +328,14 @@ static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op) #endif spin_lock(&GlobalMid_Lock); } else { - if(ses->server->tcpStatus == CifsExiting) { + if (ses->server->tcpStatus == CifsExiting) { spin_unlock(&GlobalMid_Lock); return -ENOENT; } - /* can not count locking commands against total since - they are allowed to block on server */ - + /* can not count locking commands against total + as they are allowed to block on server */ + /* update # of requests on the wire to server */ if (long_op < 3) atomic_inc(&ses->server->inFlight); @@ -353,11 +353,11 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf, if (ses->server->tcpStatus == CifsExiting) { return -ENOENT; } else if (ses->server->tcpStatus == CifsNeedReconnect) { - cFYI(1,("tcp session dead - return to caller to retry")); + cFYI(1, ("tcp session dead - return to caller to retry")); return -EAGAIN; } else if (ses->status != CifsGood) { /* check if SMB session is bad because we are setting it up */ - if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && + if ((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) && (in_buf->Command != SMB_COM_NEGOTIATE)) { return -EAGAIN; } /* else ok - we are setting up session */ @@ -369,7 +369,7 @@ static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf, return 0; } -static int wait_for_response(struct cifsSesInfo *ses, +static int wait_for_response(struct cifsSesInfo *ses, struct mid_q_entry *midQ, unsigned long timeout, unsigned long time_to_wait) @@ -379,8 +379,8 @@ static int wait_for_response(struct cifsSesInfo *ses, for (;;) { curr_timeout = timeout + jiffies; wait_event(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || - time_after(jiffies, curr_timeout) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || + time_after(jiffies, curr_timeout) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); @@ -398,16 +398,16 @@ static int wait_for_response(struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); /* Calculate time_to_wait past last receive time. - Although we prefer not to time out if the + Although we prefer not to time out if the server is still responding - we will time - out if the server takes more than 15 (or 45 + out if the server takes more than 15 (or 45 or 180) seconds to respond to this request - and has not responded to any request from + and has not responded to any request from other threads on the client within 10 seconds */ lrt += time_to_wait; if (time_after(jiffies, lrt)) { /* No replies for time_to_wait. */ - cERROR(1,("server not responding")); + cERROR(1, ("server not responding")); return -1; } } else { @@ -417,8 +417,8 @@ static int wait_for_response(struct cifsSesInfo *ses, } int -SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, - struct kvec *iov, int n_vec, int * pRespBufType /* ret */, +SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, + struct kvec *iov, int n_vec, int *pRespBufType /* ret */, const int long_op) { int rc = 0; @@ -426,21 +426,21 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, unsigned long timeout; struct mid_q_entry *midQ; struct smb_hdr *in_buf = iov[0].iov_base; - + *pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */ if ((ses == NULL) || (ses->server == NULL)) { cifs_small_buf_release(in_buf); - cERROR(1,("Null session")); + cERROR(1, ("Null session")); return -EIO; } - if(ses->server->tcpStatus == CifsExiting) { + if (ses->server->tcpStatus == CifsExiting) { cifs_small_buf_release(in_buf); return -ENOENT; } - /* Ensure that we do not send more than 50 overlapping requests + /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ @@ -450,23 +450,23 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, return rc; } - /* make sure that we sign in the same order that we send on this socket + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = allocate_mid(ses, in_buf, &midQ); if (rc) { up(&ses->server->tcpSem); cifs_small_buf_release(in_buf); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } - rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number); + rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number); midQ->midState = MID_REQUEST_SUBMITTED; #ifdef CONFIG_CIFS_STATS2 @@ -482,7 +482,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, up(&ses->server->tcpSem); cifs_small_buf_release(in_buf); - if(rc < 0) + if (rc < 0) goto out; if (long_op == -1) @@ -490,18 +490,18 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, else if (long_op == 2) /* writes past end of file can take loong time */ timeout = 180 * HZ; else if (long_op == 1) - timeout = 45 * HZ; /* should be greater than + timeout = 45 * HZ; /* should be greater than servers oplock break timeout (about 43 seconds) */ else timeout = 15 * HZ; - /* wait for 15 seconds or until woken up due to response arriving or + /* wait for 15 seconds or until woken up due to response arriving or due to last connection to this server being unmounted */ if (signal_pending(current)) { /* if signal pending do not hold up user for full smb timeout but we still give response a chance to complete */ timeout = 2 * HZ; - } + } /* No user interrupts in wait - wreaks havoc with performance */ wait_for_response(ses, midQ, timeout, 10 * HZ); @@ -511,10 +511,10 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); receive_len = midQ->resp_buf->smb_buf_length; } else { - cERROR(1,("No response to cmd %d mid %d", + cERROR(1, ("No response to cmd %d mid %d", midQ->command, midQ->mid)); - if(midQ->midState == MID_REQUEST_SUBMITTED) { - if(ses->server->tcpStatus == CifsExiting) + if (midQ->midState == MID_REQUEST_SUBMITTED) { + if (ses->server->tcpStatus == CifsExiting) rc = -EHOSTDOWN; else { ses->server->tcpStatus = CifsNeedReconnect; @@ -523,9 +523,9 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, } if (rc != -EHOSTDOWN) { - if(midQ->midState == MID_RETRY_NEEDED) { + if (midQ->midState == MID_RETRY_NEEDED) { rc = -EAGAIN; - cFYI(1,("marking request for retry")); + cFYI(1, ("marking request for retry")); } else { rc = -EIO; } @@ -533,21 +533,21 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); DeleteMidQEntry(midQ); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } - + if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { cERROR(1, ("Frame too large received. Length: %d Xid: %d", receive_len, xid)); rc = -EIO; } else { /* rcvd frame is ok */ - if (midQ->resp_buf && + if (midQ->resp_buf && (midQ->midState == MID_RESPONSE_RECEIVED)) { iov[0].iov_base = (char *)midQ->resp_buf; - if(midQ->largeBuf) + if (midQ->largeBuf) *pRespBufType = CIFS_LARGE_BUFFER; else *pRespBufType = CIFS_SMALL_BUFFER; @@ -555,14 +555,14 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, dump_smb(midQ->resp_buf, 80); /* convert the length into a more usable form */ - if((receive_len > 24) && + if ((receive_len > 24) && (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(midQ->resp_buf, - ses->server->mac_signing_key, + &ses->server->mac_signing_key, midQ->sequence_number+1); - if(rc) { - cERROR(1,("Unexpected SMB signature")); + if (rc) { + cERROR(1, ("Unexpected SMB signature")); /* BB FIXME add code to kill session */ } } @@ -576,19 +576,19 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, sizeof (struct smb_hdr) - 4 /* do not count RFC1001 header */ + (2 * midQ->resp_buf->WordCount) + 2 /* bcc */ ) - BCC(midQ->resp_buf) = + BCC(midQ->resp_buf) = le16_to_cpu(BCC_LE(midQ->resp_buf)); midQ->resp_buf = NULL; /* mark it so will not be freed by DeleteMidQEntry */ } else { rc = -EIO; - cFYI(1,("Bad MID state?")); + cFYI(1, ("Bad MID state?")); } } out: DeleteMidQEntry(midQ); - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; @@ -605,18 +605,18 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, struct mid_q_entry *midQ; if (ses == NULL) { - cERROR(1,("Null smb session")); + cERROR(1, ("Null smb session")); return -EIO; } - if(ses->server == NULL) { - cERROR(1,("Null tcp session")); + if (ses->server == NULL) { + cERROR(1, ("Null tcp session")); return -EIO; } - if(ses->server->tcpStatus == CifsExiting) + if (ses->server->tcpStatus == CifsExiting) return -ENOENT; - /* Ensure that we do not send more than 50 overlapping requests + /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ @@ -624,17 +624,17 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, if (rc) return rc; - /* make sure that we sign in the same order that we send on this socket + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = allocate_mid(ses, in_buf, &midQ); if (rc) { up(&ses->server->tcpSem); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } @@ -645,7 +645,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, DeleteMidQEntry(midQ); up(&ses->server->tcpSem); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return -EIO; } @@ -664,7 +664,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, #endif up(&ses->server->tcpSem); - if(rc < 0) + if (rc < 0) goto out; if (long_op == -1) @@ -672,17 +672,17 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, else if (long_op == 2) /* writes past end of file can take loong time */ timeout = 180 * HZ; else if (long_op == 1) - timeout = 45 * HZ; /* should be greater than + timeout = 45 * HZ; /* should be greater than servers oplock break timeout (about 43 seconds) */ else timeout = 15 * HZ; - /* wait for 15 seconds or until woken up due to response arriving or + /* wait for 15 seconds or until woken up due to response arriving or due to last connection to this server being unmounted */ if (signal_pending(current)) { /* if signal pending do not hold up user for full smb timeout but we still give response a chance to complete */ timeout = 2 * HZ; - } + } /* No user interrupts in wait - wreaks havoc with performance */ wait_for_response(ses, midQ, timeout, 10 * HZ); @@ -692,10 +692,10 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); receive_len = midQ->resp_buf->smb_buf_length; } else { - cERROR(1,("No response for cmd %d mid %d", + cERROR(1, ("No response for cmd %d mid %d", midQ->command, midQ->mid)); - if(midQ->midState == MID_REQUEST_SUBMITTED) { - if(ses->server->tcpStatus == CifsExiting) + if (midQ->midState == MID_REQUEST_SUBMITTED) { + if (ses->server->tcpStatus == CifsExiting) rc = -EHOSTDOWN; else { ses->server->tcpStatus = CifsNeedReconnect; @@ -704,9 +704,9 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, } if (rc != -EHOSTDOWN) { - if(midQ->midState == MID_RETRY_NEEDED) { + if (midQ->midState == MID_RETRY_NEEDED) { rc = -EAGAIN; - cFYI(1,("marking request for retry")); + cFYI(1, ("marking request for retry")); } else { rc = -EIO; } @@ -714,11 +714,11 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); DeleteMidQEntry(midQ); /* Update # of requests on wire to server */ - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; } - + if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { cERROR(1, ("Frame too large received. Length: %d Xid: %d", receive_len, xid)); @@ -734,14 +734,14 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, dump_smb(out_buf, 92); /* convert the length into a more usable form */ - if((receive_len > 24) && + if ((receive_len > 24) && (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(out_buf, - ses->server->mac_signing_key, + &ses->server->mac_signing_key, midQ->sequence_number+1); - if(rc) { - cERROR(1,("Unexpected SMB signature")); + if (rc) { + cERROR(1, ("Unexpected SMB signature")); /* BB FIXME add code to kill session */ } } @@ -759,13 +759,13 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf)); } else { rc = -EIO; - cERROR(1,("Bad MID state?")); + cERROR(1, ("Bad MID state?")); } } out: DeleteMidQEntry(midQ); - atomic_dec(&ses->server->inFlight); + atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; @@ -783,7 +783,7 @@ send_nt_cancel(struct cifsTconInfo *tcon, struct smb_hdr *in_buf, header_assemble(in_buf, SMB_COM_NT_CANCEL, tcon, 0); in_buf->Mid = mid; - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number); if (rc) { up(&ses->server->tcpSem); @@ -832,20 +832,20 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, struct cifsSesInfo *ses; if (tcon == NULL || tcon->ses == NULL) { - cERROR(1,("Null smb session")); + cERROR(1, ("Null smb session")); return -EIO; } ses = tcon->ses; - if(ses->server == NULL) { - cERROR(1,("Null tcp session")); + if (ses->server == NULL) { + cERROR(1, ("Null tcp session")); return -EIO; } - if(ses->server->tcpStatus == CifsExiting) + if (ses->server->tcpStatus == CifsExiting) return -ENOENT; - /* Ensure that we do not send more than 50 overlapping requests + /* Ensure that we do not send more than 50 overlapping requests to the same server. We may make this configurable later or use ses->maxReq */ @@ -853,11 +853,11 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, if (rc) return rc; - /* make sure that we sign in the same order that we send on this socket + /* make sure that we sign in the same order that we send on this socket and avoid races inside tcp sendmsg code that could cause corruption of smb data */ - down(&ses->server->tcpSem); + down(&ses->server->tcpSem); rc = allocate_mid(ses, in_buf, &midQ); if (rc) { @@ -887,14 +887,14 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, #endif up(&ses->server->tcpSem); - if(rc < 0) { + if (rc < 0) { DeleteMidQEntry(midQ); return rc; } /* Wait for a reply - allow signals to interrupt. */ rc = wait_event_interruptible(ses->server->response_q, - (!(midQ->midState == MID_REQUEST_SUBMITTED)) || + (!(midQ->midState == MID_REQUEST_SUBMITTED)) || ((ses->server->tcpStatus != CifsGood) && (ses->server->tcpStatus != CifsNew))); @@ -928,7 +928,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, } /* Wait 5 seconds for the response. */ - if (wait_for_response(ses, midQ, 5 * HZ, 5 * HZ)==0) { + if (wait_for_response(ses, midQ, 5 * HZ, 5 * HZ) == 0) { /* We got the response - restart system call. */ rstart = 1; } @@ -939,10 +939,10 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, spin_unlock(&GlobalMid_Lock); receive_len = midQ->resp_buf->smb_buf_length; } else { - cERROR(1,("No response for cmd %d mid %d", + cERROR(1, ("No response for cmd %d mid %d", midQ->command, midQ->mid)); - if(midQ->midState == MID_REQUEST_SUBMITTED) { - if(ses->server->tcpStatus == CifsExiting) + if (midQ->midState == MID_REQUEST_SUBMITTED) { + if (ses->server->tcpStatus == CifsExiting) rc = -EHOSTDOWN; else { ses->server->tcpStatus = CifsNeedReconnect; @@ -951,9 +951,9 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, } if (rc != -EHOSTDOWN) { - if(midQ->midState == MID_RETRY_NEEDED) { + if (midQ->midState == MID_RETRY_NEEDED) { rc = -EAGAIN; - cFYI(1,("marking request for retry")); + cFYI(1, ("marking request for retry")); } else { rc = -EIO; } @@ -962,7 +962,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, DeleteMidQEntry(midQ); return rc; } - + if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) { cERROR(1, ("Frame too large received. Length: %d Xid: %d", receive_len, xid)); @@ -978,14 +978,14 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, dump_smb(out_buf, 92); /* convert the length into a more usable form */ - if((receive_len > 24) && + if ((receive_len > 24) && (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))) { rc = cifs_verify_signature(out_buf, - ses->server->mac_signing_key, + &ses->server->mac_signing_key, midQ->sequence_number+1); - if(rc) { - cERROR(1,("Unexpected SMB signature")); + if (rc) { + cERROR(1, ("Unexpected SMB signature")); /* BB FIXME add code to kill session */ } } @@ -1003,7 +1003,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf)); } else { rc = -EIO; - cERROR(1,("Bad MID state?")); + cERROR(1, ("Bad MID state?")); } } DeleteMidQEntry(midQ); diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 18fcec190f8b..f61e433d281c 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -1,7 +1,7 @@ /* * fs/cifs/xattr.c * - * Copyright (c) International Business Machines Corp., 2003 + * Copyright (c) International Business Machines Corp., 2003, 2007 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -37,50 +37,52 @@ #define XATTR_TRUSTED_PREFIX_LEN 8 #define XATTR_SECURITY_PREFIX_LEN 9 /* BB need to add server (Samba e.g) support for security and trusted prefix */ - -int cifs_removexattr(struct dentry * direntry, const char * ea_name) + +int cifs_removexattr(struct dentry *direntry, const char *ea_name) { int rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; - - if(direntry == NULL) + struct super_block *sb; + char *full_path; + + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; xid = GetXid(); - + cifs_sb = CIFS_SB(sb); pTcon = cifs_sb->tcon; - + full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } - if(ea_name == NULL) { - cFYI(1,("Null xattr names not supported")); - } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) - && (strncmp(ea_name,CIFS_XATTR_OS2_PREFIX,4))) { - cFYI(1,("illegal xattr namespace %s (only user namespace supported)",ea_name)); + if (ea_name == NULL) { + cFYI(1, ("Null xattr names not supported")); + } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) + && (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4))) { + cFYI(1, + ("illegal xattr request %s (only user namespace supported)", + ea_name)); /* BB what if no namespace prefix? */ /* Should we just pass them to server, except for system and perhaps security prefixes? */ } else { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto remove_ea_exit; - ea_name+=5; /* skip past user. prefix */ - rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,NULL, + ea_name += 5; /* skip past user. prefix */ + rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, NULL, (__u16)0, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } @@ -91,23 +93,23 @@ remove_ea_exit: return rc; } -int cifs_setxattr(struct dentry * direntry, const char * ea_name, - const void * ea_value, size_t value_size, int flags) +int cifs_setxattr(struct dentry *direntry, const char *ea_name, + const void *ea_value, size_t value_size, int flags) { int rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; + struct super_block *sb; + char *full_path; - if(direntry == NULL) + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; xid = GetXid(); @@ -115,7 +117,7 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name, pTcon = cifs_sb->tcon; full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -123,67 +125,69 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name, /* return alt name if available as pseudo attr */ /* if proc/fs/cifs/streamstoxattr is set then - search server for EAs or streams to + search server for EAs or streams to returns as xattrs */ - if(value_size > MAX_EA_VALUE_SIZE) { - cFYI(1,("size of EA value too large")); + if (value_size > MAX_EA_VALUE_SIZE) { + cFYI(1, ("size of EA value too large")); kfree(full_path); FreeXid(xid); return -EOPNOTSUPP; } - if(ea_name == NULL) { - cFYI(1,("Null xattr names not supported")); - } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (ea_name == NULL) { + cFYI(1, ("Null xattr names not supported")); + } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto set_ea_exit; - if(strncmp(ea_name,CIFS_XATTR_DOS_ATTRIB,14) == 0) { - cFYI(1,("attempt to set cifs inode metadata")); + if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) { + cFYI(1, ("attempt to set cifs inode metadata")); } ea_name += 5; /* skip past user. prefix */ - rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - } else if(strncmp(ea_name, CIFS_XATTR_OS2_PREFIX,4) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + } else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto set_ea_exit; ea_name += 4; /* skip past os2. prefix */ - rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } else { - int temp; - temp = strncmp(ea_name,POSIX_ACL_XATTR_ACCESS, + int temp; + temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, strlen(POSIX_ACL_XATTR_ACCESS)); if (temp == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) - rc = CIFSSMBSetPosixACL(xid, pTcon,full_path, - ea_value, (const int)value_size, - ACL_TYPE_ACCESS,cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + if (sb->s_flags & MS_POSIXACL) + rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, + ea_value, (const int)value_size, + ACL_TYPE_ACCESS, cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1,("set POSIX ACL rc %d",rc)); + cFYI(1, ("set POSIX ACL rc %d", rc)); #else - cFYI(1,("set POSIX ACL not supported")); + cFYI(1, ("set POSIX ACL not supported")); #endif - } else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT,strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { + } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT, + strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) - rc = CIFSSMBSetPosixACL(xid, pTcon,full_path, - ea_value, (const int)value_size, + if (sb->s_flags & MS_POSIXACL) + rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, + ea_value, (const int)value_size, ACL_TYPE_DEFAULT, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1,("set POSIX default ACL rc %d",rc)); + cFYI(1, ("set POSIX default ACL rc %d", rc)); #else - cFYI(1,("set default POSIX ACL not supported")); + cFYI(1, ("set default POSIX ACL not supported")); #endif } else { - cFYI(1,("illegal xattr request %s (only user namespace supported)",ea_name)); + cFYI(1, ("illegal xattr request %s (only user namespace" + " supported)", ea_name)); /* BB what if no namespace prefix? */ - /* Should we just pass them to server, except for + /* Should we just pass them to server, except for system and perhaps security prefixes? */ } } @@ -195,23 +199,23 @@ set_ea_exit: return rc; } -ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name, - void * ea_value, size_t buf_size) +ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, + void *ea_value, size_t buf_size) { ssize_t rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; + struct super_block *sb; + char *full_path; - if(direntry == NULL) + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; xid = GetXid(); @@ -220,42 +224,42 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name, pTcon = cifs_sb->tcon; full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } /* return dos attributes as pseudo xattr */ /* return alt name if available as pseudo attr */ - if(ea_name == NULL) { - cFYI(1,("Null xattr names not supported")); - } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (ea_name == NULL) { + cFYI(1, ("Null xattr names not supported")); + } else if (strncmp(ea_name, CIFS_XATTR_USER_PREFIX, 5) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto get_ea_exit; - if(strncmp(ea_name,CIFS_XATTR_DOS_ATTRIB,14) == 0) { - cFYI(1,("attempt to query cifs inode metadata")); + if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) { + cFYI(1, ("attempt to query cifs inode metadata")); /* revalidate/getattr then populate from inode */ } /* BB add else when above is implemented */ ea_name += 5; /* skip past user. prefix */ - rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value, buf_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - } else if(strncmp(ea_name, CIFS_XATTR_OS2_PREFIX,4) == 0) { - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + } else if (strncmp(ea_name, CIFS_XATTR_OS2_PREFIX, 4) == 0) { + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto get_ea_exit; ea_name += 4; /* skip past os2. prefix */ - rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value, + rc = CIFSSMBQueryEA(xid, pTcon, full_path, ea_name, ea_value, buf_size, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - } else if(strncmp(ea_name,POSIX_ACL_XATTR_ACCESS, + } else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, strlen(POSIX_ACL_XATTR_ACCESS)) == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) + if (sb->s_flags & MS_POSIXACL) rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, - ea_value, buf_size, ACL_TYPE_ACCESS, + ea_value, buf_size, ACL_TYPE_ACCESS, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); /* else if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { __u16 fid; @@ -272,39 +276,40 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name, CIFSSMBClose(xid, pTcon, fid); } } */ /* BB enable after fixing up return data */ - -#else - cFYI(1,("query POSIX ACL not supported yet")); +#else + cFYI(1, ("query POSIX ACL not supported yet")); #endif /* CONFIG_CIFS_POSIX */ - } else if(strncmp(ea_name,POSIX_ACL_XATTR_DEFAULT, + } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT, strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { #ifdef CONFIG_CIFS_POSIX - if(sb->s_flags & MS_POSIXACL) + if (sb->s_flags & MS_POSIXACL) rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, - ea_value, buf_size, ACL_TYPE_DEFAULT, + ea_value, buf_size, ACL_TYPE_DEFAULT, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); -#else - cFYI(1,("query POSIX default ACL not supported yet")); +#else + cFYI(1, ("query POSIX default ACL not supported yet")); #endif - } else if(strncmp(ea_name, - CIFS_XATTR_TRUSTED_PREFIX,XATTR_TRUSTED_PREFIX_LEN) == 0) { - cFYI(1,("Trusted xattr namespace not supported yet")); - } else if(strncmp(ea_name, - CIFS_XATTR_SECURITY_PREFIX,XATTR_SECURITY_PREFIX_LEN) == 0) { - cFYI(1,("Security xattr namespace not supported yet")); + } else if (strncmp(ea_name, + CIFS_XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) == 0) { + cFYI(1, ("Trusted xattr namespace not supported yet")); + } else if (strncmp(ea_name, + CIFS_XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) { + cFYI(1, ("Security xattr namespace not supported yet")); } else { - cFYI(1,("illegal xattr name request %s (only user namespace supported)",ea_name)); + cFYI(1, + ("illegal xattr request %s (only user namespace supported)", + ea_name)); } - /* We could add an additional check for streams ie + /* We could add an additional check for streams ie if proc/fs/cifs/streamstoxattr is set then - search server for EAs or streams to + search server for EAs or streams to returns as xattrs */ - if(rc == -EINVAL) - rc = -EOPNOTSUPP; + if (rc == -EINVAL) + rc = -EOPNOTSUPP; get_ea_exit: kfree(full_path); @@ -313,34 +318,34 @@ get_ea_exit: return rc; } -ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size) +ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size) { ssize_t rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR int xid; struct cifs_sb_info *cifs_sb; struct cifsTconInfo *pTcon; - struct super_block * sb; - char * full_path; + struct super_block *sb; + char *full_path; - if(direntry == NULL) + if (direntry == NULL) return -EIO; - if(direntry->d_inode == NULL) + if (direntry->d_inode == NULL) return -EIO; sb = direntry->d_inode->i_sb; - if(sb == NULL) + if (sb == NULL) return -EIO; cifs_sb = CIFS_SB(sb); pTcon = cifs_sb->tcon; - if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) return -EOPNOTSUPP; xid = GetXid(); full_path = build_path_from_dentry(direntry); - if(full_path == NULL) { + if (full_path == NULL) { FreeXid(xid); return -ENOMEM; } @@ -348,11 +353,11 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size) /* return alt name if available as pseudo attr */ /* if proc/fs/cifs/streamstoxattr is set then - search server for EAs or streams to + search server for EAs or streams to returns as xattrs */ - rc = CIFSSMBQAllEAs(xid,pTcon,full_path,data,buf_size, + rc = CIFSSMBQAllEAs(xid, pTcon, full_path, data, buf_size, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(full_path); diff --git a/fs/coda/cache.c b/fs/coda/cache.c index fcb88fa8d2f2..8a2370341c7a 100644 --- a/fs/coda/cache.c +++ b/fs/coda/cache.c @@ -43,17 +43,12 @@ void coda_cache_enter(struct inode *inode, int mask) void coda_cache_clear_inode(struct inode *inode) { struct coda_inode_info *cii = ITOC(inode); - cii->c_cached_perm = 0; + cii->c_cached_epoch = atomic_read(&permission_epoch) - 1; } /* remove all acl caches */ void coda_cache_clear_all(struct super_block *sb) { - struct coda_sb_info *sbi; - - sbi = coda_sbp(sb); - BUG_ON(!sbi); - atomic_inc(&permission_epoch); } diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c index 28c872747f81..a7a780929eec 100644 --- a/fs/coda/cnode.c +++ b/fs/coda/cnode.c @@ -55,11 +55,6 @@ static int coda_set_inode(struct inode *inode, void *data) return 0; } -static int coda_fail_inode(struct inode *inode, void *data) -{ - return -1; -} - struct inode * coda_iget(struct super_block * sb, struct CodaFid * fid, struct coda_vattr * attr) { @@ -141,7 +136,7 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb) return NULL; } - inode = iget5_locked(sb, hash, coda_test_inode, coda_fail_inode, fid); + inode = ilookup5(sb, hash, coda_test_inode, fid); if ( !inode ) return NULL; diff --git a/fs/coda/coda_int.h b/fs/coda/coda_int.h index 9e6338fea514..8ccd5ed81d9c 100644 --- a/fs/coda/coda_int.h +++ b/fs/coda/coda_int.h @@ -1,12 +1,19 @@ #ifndef _CODA_INT_ #define _CODA_INT_ +struct dentry; + extern struct file_system_type coda_fs_type; +extern unsigned long coda_timeout; +extern int coda_hard; +extern int coda_fake_statfs; void coda_destroy_inodecache(void); int coda_init_inodecache(void); int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync); +void coda_sysctl_init(void); +void coda_sysctl_clean(void); #endif /* _CODA_INT_ */ diff --git a/fs/coda/dir.c b/fs/coda/dir.c index 898a86dde8f5..04a3dd84c993 100644 --- a/fs/coda/dir.c +++ b/fs/coda/dir.c @@ -25,7 +25,6 @@ #include <linux/coda_psdev.h> #include <linux/coda_fs_i.h> #include <linux/coda_cache.h> -#include <linux/coda_proc.h> #include "coda_int.h" @@ -43,15 +42,15 @@ static int coda_rename(struct inode *old_inode, struct dentry *old_dentry, struct inode *new_inode, struct dentry *new_dentry); /* dir file-ops */ -static int coda_readdir(struct file *file, void *dirent, filldir_t filldir); +static int coda_readdir(struct file *file, void *buf, filldir_t filldir); /* dentry ops */ static int coda_dentry_revalidate(struct dentry *de, struct nameidata *nd); static int coda_dentry_delete(struct dentry *); /* support routines */ -static int coda_venus_readdir(struct file *filp, filldir_t filldir, - void *dirent, struct dentry *dir); +static int coda_venus_readdir(struct file *coda_file, void *buf, + filldir_t filldir); /* same as fs/bad_inode.c */ static int coda_return_EIO(void) @@ -97,58 +96,45 @@ const struct file_operations coda_dir_operations = { /* access routines: lookup, readlink, permission */ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struct nameidata *nd) { - struct inode *res_inode = NULL; + struct inode *inode = NULL; struct CodaFid resfid = { { 0, } }; - int dropme = 0; /* to indicate entry should not be cached */ int type = 0; int error = 0; const char *name = entry->d_name.name; size_t length = entry->d_name.len; - - if ( length > CODA_MAXNAMLEN ) { - printk("name too long: lookup, %s (%*s)\n", + + if (length > CODA_MAXNAMLEN) { + printk(KERN_ERR "name too long: lookup, %s (%*s)\n", coda_i2s(dir), (int)length, name); return ERR_PTR(-ENAMETOOLONG); } + /* control object, create inode on the fly */ + if (coda_isroot(dir) && coda_iscontrol(name, length)) { + error = coda_cnode_makectl(&inode, dir->i_sb); + type = CODA_NOCACHE; + goto exit; + } + lock_kernel(); - /* control object, create inode on the fly */ - if (coda_isroot(dir) && coda_iscontrol(name, length)) { - error = coda_cnode_makectl(&res_inode, dir->i_sb); - dropme = 1; - goto exit; - } - error = venus_lookup(dir->i_sb, coda_i2f(dir), - (const char *)name, length, &type, &resfid); + error = venus_lookup(dir->i_sb, coda_i2f(dir), name, length, + &type, &resfid); + if (!error) + error = coda_cnode_make(&inode, &resfid, dir->i_sb); - res_inode = NULL; - if (!error) { - if (type & CODA_NOCACHE) { - type &= (~CODA_NOCACHE); - dropme = 1; - } + unlock_kernel(); - error = coda_cnode_make(&res_inode, &resfid, dir->i_sb); - if (error) { - unlock_kernel(); - return ERR_PTR(error); - } - } else if (error != -ENOENT) { - unlock_kernel(); + if (error && error != -ENOENT) return ERR_PTR(error); - } exit: - entry->d_time = 0; entry->d_op = &coda_dentry_operations; - d_add(entry, res_inode); - if ( dropme ) { - d_drop(entry); - coda_flag_inode(res_inode, C_VATTR); - } - unlock_kernel(); - return NULL; + + if (inode && (type & CODA_NOCACHE)) + coda_flag_inode(inode, C_VATTR | C_PURGE); + + return d_splice_alias(inode, entry); } @@ -161,8 +147,6 @@ int coda_permission(struct inode *inode, int mask, struct nameidata *nd) lock_kernel(); - coda_vfs_stat.permission++; - if (coda_cache_check(inode, mask)) goto out; @@ -173,12 +157,11 @@ int coda_permission(struct inode *inode, int mask, struct nameidata *nd) out: unlock_kernel(); - - return error; + return error; } -static inline void coda_dir_changed(struct inode *dir, int link) +static inline void coda_dir_update_mtime(struct inode *dir) { #ifdef REQUERY_VENUS_FOR_MTIME /* invalidate the directory cnode's attributes so we refetch the @@ -186,12 +169,27 @@ static inline void coda_dir_changed(struct inode *dir, int link) coda_flag_inode(dir, C_VATTR); #else /* optimistically we can also act as if our nose bleeds. The - * granularity of the mtime is coarse anyways so we might actually be - * right most of the time. Note: we only do this for directories. */ + * granularity of the mtime is coarse anyways so we might actually be + * right most of the time. Note: we only do this for directories. */ dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC; #endif - if (link) - dir->i_nlink += link; +} + +/* we have to wrap inc_nlink/drop_nlink because sometimes userspace uses a + * trick to fool GNU find's optimizations. If we can't be sure of the link + * (because of volume mount points) we set i_nlink to 1 which forces find + * to consider every child as a possible directory. We should also never + * see an increment or decrement for deleted directories where i_nlink == 0 */ +static inline void coda_dir_inc_nlink(struct inode *dir) +{ + if (dir->i_nlink >= 2) + inc_nlink(dir); +} + +static inline void coda_dir_drop_nlink(struct inode *dir) +{ + if (dir->i_nlink > 2) + drop_nlink(dir); } /* creation routines: create, mknod, mkdir, link, symlink */ @@ -205,7 +203,6 @@ static int coda_create(struct inode *dir, struct dentry *de, int mode, struct na struct coda_vattr attrs; lock_kernel(); - coda_vfs_stat.create++; if (coda_isroot(dir) && coda_iscontrol(name, length)) { unlock_kernel(); @@ -229,10 +226,10 @@ static int coda_create(struct inode *dir, struct dentry *de, int mode, struct na } /* invalidate the directory cnode's attributes */ - coda_dir_changed(dir, 0); + coda_dir_update_mtime(dir); unlock_kernel(); d_instantiate(de, inode); - return 0; + return 0; } static int coda_mkdir(struct inode *dir, struct dentry *de, int mode) @@ -245,7 +242,6 @@ static int coda_mkdir(struct inode *dir, struct dentry *de, int mode) struct CodaFid newfid; lock_kernel(); - coda_vfs_stat.mkdir++; if (coda_isroot(dir) && coda_iscontrol(name, len)) { unlock_kernel(); @@ -268,12 +264,13 @@ static int coda_mkdir(struct inode *dir, struct dentry *de, int mode) d_drop(de); return PTR_ERR(inode); } - + /* invalidate the directory cnode's attributes */ - coda_dir_changed(dir, 1); + coda_dir_inc_nlink(dir); + coda_dir_update_mtime(dir); unlock_kernel(); d_instantiate(de, inode); - return 0; + return 0; } /* try to make de an entry in dir_inodde linked to source_de */ @@ -286,7 +283,6 @@ static int coda_link(struct dentry *source_de, struct inode *dir_inode, int error; lock_kernel(); - coda_vfs_stat.link++; if (coda_isroot(dir_inode) && coda_iscontrol(name, len)) { unlock_kernel(); @@ -296,16 +292,16 @@ static int coda_link(struct dentry *source_de, struct inode *dir_inode, error = venus_link(dir_inode->i_sb, coda_i2f(inode), coda_i2f(dir_inode), (const char *)name, len); - if (error) { + if (error) { d_drop(de); goto out; } - coda_dir_changed(dir_inode, 0); + coda_dir_update_mtime(dir_inode); atomic_inc(&inode->i_count); d_instantiate(de, inode); inc_nlink(inode); - + out: unlock_kernel(); return(error); @@ -318,10 +314,9 @@ static int coda_symlink(struct inode *dir_inode, struct dentry *de, const char *name = de->d_name.name; int len = de->d_name.len; int symlen; - int error=0; - + int error = 0; + lock_kernel(); - coda_vfs_stat.symlink++; if (coda_isroot(dir_inode) && coda_iscontrol(name, len)) { unlock_kernel(); @@ -336,18 +331,18 @@ static int coda_symlink(struct inode *dir_inode, struct dentry *de, /* * This entry is now negative. Since we do not create - * an inode for the entry we have to drop it. + * an inode for the entry we have to drop it. */ d_drop(de); - error = venus_symlink(dir_inode->i_sb, coda_i2f(dir_inode), name, len, + error = venus_symlink(dir_inode->i_sb, coda_i2f(dir_inode), name, len, symname, symlen); /* mtime is no good anymore */ if ( !error ) - coda_dir_changed(dir_inode, 0); + coda_dir_update_mtime(dir_inode); unlock_kernel(); - return error; + return error; } /* destruction routines: unlink, rmdir */ @@ -358,79 +353,70 @@ int coda_unlink(struct inode *dir, struct dentry *de) int len = de->d_name.len; lock_kernel(); - coda_vfs_stat.unlink++; - error = venus_remove(dir->i_sb, coda_i2f(dir), name, len); - if ( error ) { + error = venus_remove(dir->i_sb, coda_i2f(dir), name, len); + if ( error ) { unlock_kernel(); - return error; - } + return error; + } - coda_dir_changed(dir, 0); + coda_dir_update_mtime(dir); drop_nlink(de->d_inode); unlock_kernel(); - - return 0; + return 0; } int coda_rmdir(struct inode *dir, struct dentry *de) { const char *name = de->d_name.name; int len = de->d_name.len; - int error; + int error; lock_kernel(); - coda_vfs_stat.rmdir++; - if (!d_unhashed(de)) { - unlock_kernel(); - return -EBUSY; - } error = venus_rmdir(dir->i_sb, coda_i2f(dir), name, len); + if (!error) { + /* VFS may delete the child */ + if (de->d_inode) + de->d_inode->i_nlink = 0; - if ( error ) { - unlock_kernel(); - return error; - } - - coda_dir_changed(dir, -1); - drop_nlink(de->d_inode); - d_delete(de); + /* fix the link count of the parent */ + coda_dir_drop_nlink(dir); + coda_dir_update_mtime(dir); + } unlock_kernel(); - - return 0; + return error; } /* rename */ -static int coda_rename(struct inode *old_dir, struct dentry *old_dentry, +static int coda_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { - const char *old_name = old_dentry->d_name.name; - const char *new_name = new_dentry->d_name.name; + const char *old_name = old_dentry->d_name.name; + const char *new_name = new_dentry->d_name.name; int old_length = old_dentry->d_name.len; int new_length = new_dentry->d_name.len; - int link_adjust = 0; - int error; + int error; lock_kernel(); - coda_vfs_stat.rename++; - error = venus_rename(old_dir->i_sb, coda_i2f(old_dir), - coda_i2f(new_dir), old_length, new_length, + error = venus_rename(old_dir->i_sb, coda_i2f(old_dir), + coda_i2f(new_dir), old_length, new_length, (const char *) old_name, (const char *)new_name); - if ( !error ) { + if ( !error ) { if ( new_dentry->d_inode ) { - if ( S_ISDIR(new_dentry->d_inode->i_mode) ) - link_adjust = 1; - - coda_dir_changed(old_dir, -link_adjust); - coda_dir_changed(new_dir, link_adjust); + if ( S_ISDIR(new_dentry->d_inode->i_mode) ) { + coda_dir_drop_nlink(old_dir); + coda_dir_inc_nlink(new_dir); + } + coda_dir_update_mtime(old_dir); + coda_dir_update_mtime(new_dir); coda_flag_inode(new_dentry->d_inode, C_VATTR); } else { coda_flag_inode(old_dir, C_VATTR); coda_flag_inode(new_dir, C_VATTR); - } + } } unlock_kernel(); @@ -439,44 +425,41 @@ static int coda_rename(struct inode *old_dir, struct dentry *old_dentry, /* file operations for directories */ -int coda_readdir(struct file *coda_file, void *dirent, filldir_t filldir) +int coda_readdir(struct file *coda_file, void *buf, filldir_t filldir) { - struct dentry *coda_dentry = coda_file->f_path.dentry; struct coda_file_info *cfi; struct file *host_file; - struct inode *host_inode; int ret; cfi = CODA_FTOC(coda_file); BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); host_file = cfi->cfi_container; - coda_vfs_stat.readdir++; + if (!host_file->f_op) + return -ENOTDIR; - host_inode = host_file->f_path.dentry->d_inode; - mutex_lock(&host_inode->i_mutex); - host_file->f_pos = coda_file->f_pos; + if (host_file->f_op->readdir) + { + /* potemkin case: we were handed a directory inode. + * We can't use vfs_readdir because we have to keep the file + * position in sync between the coda_file and the host_file. + * and as such we need grab the inode mutex. */ + struct inode *host_inode = host_file->f_path.dentry->d_inode; - if (!host_file->f_op->readdir) { - /* Venus: we must read Venus dirents from the file */ - ret = coda_venus_readdir(host_file, filldir, dirent, coda_dentry); - } else { - /* potemkin case: we were handed a directory inode. */ - /* Yuk, we can't call vfs_readdir because we are already - * holding the inode semaphore. */ - ret = -ENOTDIR; - if (!host_file->f_op || !host_file->f_op->readdir) - goto out; + mutex_lock(&host_inode->i_mutex); + host_file->f_pos = coda_file->f_pos; ret = -ENOENT; if (!IS_DEADDIR(host_inode)) { - ret = host_file->f_op->readdir(host_file, dirent, filldir); + ret = host_file->f_op->readdir(host_file, buf, filldir); file_accessed(host_file); } + + coda_file->f_pos = host_file->f_pos; + mutex_unlock(&host_inode->i_mutex); } -out: - coda_file->f_pos = host_file->f_pos; - mutex_unlock(&host_inode->i_mutex); + else /* Venus: we must read Venus dirents from a file */ + ret = coda_venus_readdir(coda_file, buf, filldir); return ret; } @@ -501,57 +484,68 @@ static inline unsigned int CDT2DT(unsigned char cdt) } /* support routines */ -static int coda_venus_readdir(struct file *filp, filldir_t filldir, - void *dirent, struct dentry *dir) +static int coda_venus_readdir(struct file *coda_file, void *buf, + filldir_t filldir) { int result = 0; /* # of entries returned */ + struct coda_file_info *cfi; + struct coda_inode_info *cii; + struct file *host_file; + struct dentry *de; struct venus_dirent *vdir; unsigned long vdir_size = (unsigned long)(&((struct venus_dirent *)0)->d_name); unsigned int type; struct qstr name; ino_t ino; - int ret, i; + int ret; + + cfi = CODA_FTOC(coda_file); + BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); + host_file = cfi->cfi_container; + + de = coda_file->f_path.dentry; + cii = ITOC(de->d_inode); vdir = kmalloc(sizeof(*vdir), GFP_KERNEL); if (!vdir) return -ENOMEM; - i = filp->f_pos; - switch(i) { + switch (coda_file->f_pos) { case 0: - ret = filldir(dirent, ".", 1, 0, dir->d_inode->i_ino, DT_DIR); + ret = filldir(buf, ".", 1, 0, de->d_inode->i_ino, DT_DIR); if (ret < 0) break; result++; - filp->f_pos++; + coda_file->f_pos++; /* fallthrough */ case 1: - ret = filldir(dirent, "..", 2, 1, dir->d_parent->d_inode->i_ino, DT_DIR); + ret = filldir(buf, "..", 2, 1, de->d_parent->d_inode->i_ino, DT_DIR); if (ret < 0) break; result++; - filp->f_pos++; + coda_file->f_pos++; /* fallthrough */ default: while (1) { /* read entries from the directory file */ - ret = kernel_read(filp, filp->f_pos - 2, (char *)vdir, + ret = kernel_read(host_file, coda_file->f_pos - 2, (char *)vdir, sizeof(*vdir)); if (ret < 0) { - printk("coda_venus_readdir: read dir failed %d\n", ret); + printk(KERN_ERR "coda readdir: read dir %s failed %d\n", + coda_f2s(&cii->c_fid), ret); break; } if (ret == 0) break; /* end of directory file reached */ /* catch truncated reads */ if (ret < vdir_size || ret < vdir_size + vdir->d_namlen) { - printk("coda_venus_readdir: short read: %ld\n", - filp->f_path.dentry->d_inode->i_ino); + printk(KERN_ERR "coda readdir: short read on %s\n", + coda_f2s(&cii->c_fid)); ret = -EBADF; break; } /* validate whether the directory file actually makes sense */ if (vdir->d_reclen < vdir_size + vdir->d_namlen) { - printk("coda_venus_readdir: Invalid dir: %ld\n", - filp->f_path.dentry->d_inode->i_ino); + printk(KERN_ERR "coda readdir: invalid dir %s\n", + coda_f2s(&cii->c_fid)); ret = -EBADF; break; } @@ -570,21 +564,21 @@ static int coda_venus_readdir(struct file *filp, filldir_t filldir, * userspace doesn't have to worry about breaking * getcwd by having mismatched inode numbers for * internal volume mountpoints. */ - ino = find_inode_number(dir, &name); + ino = find_inode_number(de, &name); if (!ino) ino = vdir->d_fileno; type = CDT2DT(vdir->d_type); - ret = filldir(dirent, name.name, name.len, filp->f_pos, - ino, type); + ret = filldir(buf, name.name, name.len, + coda_file->f_pos, ino, type); /* failure means no space for filling in this round */ if (ret < 0) break; result++; } /* we'll always have progress because d_reclen is unsigned and * we've already established it is non-zero. */ - filp->f_pos += vdir->d_reclen; + coda_file->f_pos += vdir->d_reclen; + } } - } kfree(vdir); return result ? result : ret; } diff --git a/fs/coda/file.c b/fs/coda/file.c index 99dbe866816d..7594962604c2 100644 --- a/fs/coda/file.c +++ b/fs/coda/file.c @@ -22,7 +22,6 @@ #include <linux/coda_linux.h> #include <linux/coda_fs_i.h> #include <linux/coda_psdev.h> -#include <linux/coda_proc.h> #include "coda_int.h" @@ -134,8 +133,6 @@ int coda_open(struct inode *coda_inode, struct file *coda_file) unsigned short coda_flags = coda_flags_to_cflags(flags); struct coda_file_info *cfi; - coda_vfs_stat.open++; - cfi = kmalloc(sizeof(struct coda_file_info), GFP_KERNEL); if (!cfi) return -ENOMEM; @@ -143,8 +140,11 @@ int coda_open(struct inode *coda_inode, struct file *coda_file) lock_kernel(); error = venus_open(coda_inode->i_sb, coda_i2f(coda_inode), coda_flags, - &host_file); - if (error || !host_file) { + &host_file); + if (!host_file) + error = -EIO; + + if (error) { kfree(cfi); unlock_kernel(); return error; @@ -173,8 +173,6 @@ int coda_flush(struct file *coda_file, fl_owner_t id) lock_kernel(); - coda_vfs_stat.flush++; - /* last close semantics */ fcnt = file_count(coda_file); if (fcnt > 1) @@ -216,8 +214,7 @@ int coda_release(struct inode *coda_inode, struct file *coda_file) int err = 0; lock_kernel(); - coda_vfs_stat.release++; - + if (!use_coda_close) { err = venus_release(coda_inode->i_sb, coda_i2f(coda_inode), coda_flags); @@ -268,8 +265,6 @@ int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync) BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC); host_file = cfi->cfi_container; - coda_vfs_stat.fsync++; - if (host_file->f_op && host_file->f_op->fsync) { host_dentry = host_file->f_path.dentry; host_inode = host_dentry->d_inode; diff --git a/fs/coda/inode.c b/fs/coda/inode.c index dbff1bd4fb96..6771a4271e33 100644 --- a/fs/coda/inode.c +++ b/fs/coda/inode.c @@ -83,7 +83,7 @@ void coda_destroy_inodecache(void) static int coda_remount(struct super_block *sb, int *flags, char *data) { - *flags |= MS_NODIRATIME; + *flags |= MS_NOATIME; return 0; } @@ -141,11 +141,10 @@ static int get_device_index(struct coda_mount_data *data) static int coda_fill_super(struct super_block *sb, void *data, int silent) { - struct inode *root = NULL; - struct coda_sb_info *sbi = NULL; + struct inode *root = NULL; struct venus_comm *vc = NULL; struct CodaFid fid; - int error; + int error; int idx; idx = get_device_index((struct coda_mount_data *) data); @@ -167,21 +166,14 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent) return -EBUSY; } - sbi = kmalloc(sizeof(struct coda_sb_info), GFP_KERNEL); - if(!sbi) { - return -ENOMEM; - } - vc->vc_sb = sb; - sbi->sbi_vcomm = vc; - - sb->s_fs_info = sbi; - sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ - sb->s_blocksize = 1024; /* XXXXX what do we put here?? */ - sb->s_blocksize_bits = 10; - sb->s_magic = CODA_SUPER_MAGIC; - sb->s_op = &coda_super_operations; + sb->s_fs_info = vc; + sb->s_flags |= MS_NOATIME; + sb->s_blocksize = 4096; /* XXXXX what do we put here?? */ + sb->s_blocksize_bits = 12; + sb->s_magic = CODA_SUPER_MAGIC; + sb->s_op = &coda_super_operations; /* get root fid from Venus: this needs the root inode */ error = venus_rootfid(sb, &fid); @@ -207,26 +199,20 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent) return 0; error: - if (sbi) { - kfree(sbi); - if(vc) - vc->vc_sb = NULL; - } if (root) - iput(root); + iput(root); + if (vc) + vc->vc_sb = NULL; - return -EINVAL; + return -EINVAL; } static void coda_put_super(struct super_block *sb) { - struct coda_sb_info *sbi; - - sbi = coda_sbp(sb); - sbi->sbi_vcomm->vc_sb = NULL; + coda_vcp(sb)->vc_sb = NULL; + sb->s_fs_info = NULL; printk("Coda: Bye bye.\n"); - kfree(sbi); } static void coda_clear_inode(struct inode *inode) @@ -296,7 +282,7 @@ static int coda_statfs(struct dentry *dentry, struct kstatfs *buf) /* and fill in the rest */ buf->f_type = CODA_SUPER_MAGIC; - buf->f_bsize = 1024; + buf->f_bsize = 4096; buf->f_namelen = CODA_MAXNAMLEN; return 0; diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c index 803aacf0d49c..dcc6aead70f5 100644 --- a/fs/coda/psdev.c +++ b/fs/coda/psdev.c @@ -45,12 +45,9 @@ #include <linux/coda_linux.h> #include <linux/coda_fs_i.h> #include <linux/coda_psdev.h> -#include <linux/coda_proc.h> #include "coda_int.h" -#define upc_free(r) kfree(r) - /* statistics */ int coda_hard; /* allows signals during upcalls */ unsigned long coda_timeout = 30; /* .. secs, then signals will dequeue */ @@ -195,7 +192,8 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf, if (req->uc_opcode == CODA_OPEN_BY_FD) { struct coda_open_by_fd_out *outp = (struct coda_open_by_fd_out *)req->uc_data; - outp->fh = fget(outp->fd); + if (!outp->oh.result) + outp->fh = fget(outp->fd); } wake_up(&req->uc_sleep); @@ -263,7 +261,7 @@ static ssize_t coda_psdev_read(struct file * file, char __user * buf, } CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr)); - upc_free(req); + kfree(req); out: unlock_kernel(); return (count ? count : retval); @@ -271,71 +269,70 @@ out: static int coda_psdev_open(struct inode * inode, struct file * file) { - struct venus_comm *vcp; - int idx; + struct venus_comm *vcp; + int idx, err; - lock_kernel(); idx = iminor(inode); - if(idx >= MAX_CODADEVS) { - unlock_kernel(); + if (idx < 0 || idx >= MAX_CODADEVS) return -ENODEV; - } + lock_kernel(); + + err = -EBUSY; vcp = &coda_comms[idx]; - if(vcp->vc_inuse) { - unlock_kernel(); - return -EBUSY; - } - - if (!vcp->vc_inuse++) { + if (!vcp->vc_inuse) { + vcp->vc_inuse++; + INIT_LIST_HEAD(&vcp->vc_pending); INIT_LIST_HEAD(&vcp->vc_processing); init_waitqueue_head(&vcp->vc_waitq); vcp->vc_sb = NULL; vcp->vc_seq = 0; + + file->private_data = vcp; + err = 0; } - - file->private_data = vcp; unlock_kernel(); - return 0; + return err; } static int coda_psdev_release(struct inode * inode, struct file * file) { - struct venus_comm *vcp = (struct venus_comm *) file->private_data; - struct upc_req *req, *tmp; + struct venus_comm *vcp = (struct venus_comm *) file->private_data; + struct upc_req *req, *tmp; - lock_kernel(); - if ( !vcp->vc_inuse ) { - unlock_kernel(); + if (!vcp || !vcp->vc_inuse ) { printk("psdev_release: Not open.\n"); return -1; } - if (--vcp->vc_inuse) { - unlock_kernel(); - return 0; - } - - /* Wakeup clients so they can return. */ + lock_kernel(); + + /* Wakeup clients so they can return. */ list_for_each_entry_safe(req, tmp, &vcp->vc_pending, uc_chain) { + list_del(&req->uc_chain); + /* Async requests need to be freed here */ if (req->uc_flags & REQ_ASYNC) { CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr)); - upc_free(req); + kfree(req); continue; } req->uc_flags |= REQ_ABORT; wake_up(&req->uc_sleep); - } - - list_for_each_entry(req, &vcp->vc_processing, uc_chain) { + } + + list_for_each_entry_safe(req, tmp, &vcp->vc_processing, uc_chain) { + list_del(&req->uc_chain); + req->uc_flags |= REQ_ABORT; - wake_up(&req->uc_sleep); - } + wake_up(&req->uc_sleep); + } + file->private_data = NULL; + vcp->vc_inuse--; unlock_kernel(); return 0; } @@ -376,21 +373,20 @@ out: return err; } - -MODULE_AUTHOR("Peter J. Braam <braam@cs.cmu.edu>"); +MODULE_AUTHOR("Jan Harkes, Peter J. Braam"); +MODULE_DESCRIPTION("Coda Distributed File System VFS interface"); +MODULE_ALIAS_CHARDEV_MAJOR(CODA_PSDEV_MAJOR); MODULE_LICENSE("GPL"); +#ifdef CONFIG_CODA_FS_OLD_API +MODULE_VERSION("5.3.21"); +#else +MODULE_VERSION("6.6"); +#endif static int __init init_coda(void) { int status; int i; - printk(KERN_INFO "Coda Kernel/Venus communications, " -#ifdef CONFIG_CODA_FS_OLD_API - "v5.3.20" -#else - "v6.0.0" -#endif - ", coda@cs.cmu.edu\n"); status = coda_init_inodecache(); if (status) diff --git a/fs/coda/symlink.c b/fs/coda/symlink.c index 76e00a65a75b..4513b7258458 100644 --- a/fs/coda/symlink.c +++ b/fs/coda/symlink.c @@ -20,7 +20,6 @@ #include <linux/coda_linux.h> #include <linux/coda_psdev.h> #include <linux/coda_fs_i.h> -#include <linux/coda_proc.h> static int coda_symlink_filler(struct file *file, struct page *page) { @@ -32,7 +31,6 @@ static int coda_symlink_filler(struct file *file, struct page *page) lock_kernel(); cii = ITOC(inode); - coda_vfs_stat.follow_link++; error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len); unlock_kernel(); diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c index c57a1fa7cf23..81b7771c6465 100644 --- a/fs/coda/sysctl.c +++ b/fs/coda/sysctl.c @@ -5,181 +5,14 @@ * * Carnegie Mellon encourages users to contribute improvements to * the Coda project. Contact Peter Braam (coda@cs.cmu.edu). - * - * CODA operation statistics - * (c) March, 1998 Zhanyong Wan <zhanyong.wan@yale.edu> - * */ -#include <linux/time.h> -#include <linux/mm.h> #include <linux/sysctl.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/stat.h> -#include <linux/ctype.h> -#include <linux/bitops.h> -#include <asm/uaccess.h> -#include <linux/utsname.h> -#include <linux/module.h> -#include <linux/coda.h> -#include <linux/coda_linux.h> -#include <linux/coda_fs_i.h> -#include <linux/coda_psdev.h> -#include <linux/coda_cache.h> -#include <linux/coda_proc.h> +#include "coda_int.h" static struct ctl_table_header *fs_table_header; -#define CODA_TIMEOUT 3 /* timeout on upcalls to become intrble */ -#define CODA_HARD 5 /* mount type "hard" or "soft" */ -#define CODA_VFS 6 /* vfs statistics */ -#define CODA_CACHE_INV 9 /* cache invalidation statistics */ -#define CODA_FAKE_STATFS 10 /* don't query venus for actual cache usage */ - -struct coda_vfs_stats coda_vfs_stat; -static struct coda_cache_inv_stats coda_cache_inv_stat; - -static void reset_coda_vfs_stats( void ) -{ - memset( &coda_vfs_stat, 0, sizeof( coda_vfs_stat ) ); -} - -static void reset_coda_cache_inv_stats( void ) -{ - memset( &coda_cache_inv_stat, 0, sizeof( coda_cache_inv_stat ) ); -} - -static int do_reset_coda_vfs_stats( ctl_table * table, int write, - struct file * filp, void __user * buffer, - size_t * lenp, loff_t * ppos ) -{ - if ( write ) { - reset_coda_vfs_stats(); - - *ppos += *lenp; - } else { - *lenp = 0; - } - - return 0; -} - -static int do_reset_coda_cache_inv_stats( ctl_table * table, int write, - struct file * filp, - void __user * buffer, - size_t * lenp, loff_t * ppos ) -{ - if ( write ) { - reset_coda_cache_inv_stats(); - - *ppos += *lenp; - } else { - *lenp = 0; - } - - return 0; -} - -static int proc_vfs_stats_show(struct seq_file *m, void *v) -{ - struct coda_vfs_stats * ps = & coda_vfs_stat; - - seq_printf(m, - "Coda VFS statistics\n" - "===================\n\n" - "File Operations:\n" - "\topen\t\t%9d\n" - "\tflush\t\t%9d\n" - "\trelease\t\t%9d\n" - "\tfsync\t\t%9d\n\n" - "Dir Operations:\n" - "\treaddir\t\t%9d\n\n" - "Inode Operations\n" - "\tcreate\t\t%9d\n" - "\tlookup\t\t%9d\n" - "\tlink\t\t%9d\n" - "\tunlink\t\t%9d\n" - "\tsymlink\t\t%9d\n" - "\tmkdir\t\t%9d\n" - "\trmdir\t\t%9d\n" - "\trename\t\t%9d\n" - "\tpermission\t%9d\n", - - /* file operations */ - ps->open, - ps->flush, - ps->release, - ps->fsync, - - /* dir operations */ - ps->readdir, - - /* inode operations */ - ps->create, - ps->lookup, - ps->link, - ps->unlink, - ps->symlink, - ps->mkdir, - ps->rmdir, - ps->rename, - ps->permission); - return 0; -} - -static int proc_cache_inv_stats_show(struct seq_file *m, void *v) -{ - struct coda_cache_inv_stats * ps = & coda_cache_inv_stat; - - seq_printf(m, - "Coda cache invalidation statistics\n" - "==================================\n\n" - "flush\t\t%9d\n" - "purge user\t%9d\n" - "zap_dir\t\t%9d\n" - "zap_file\t%9d\n" - "zap_vnode\t%9d\n" - "purge_fid\t%9d\n" - "replace\t\t%9d\n", - ps->flush, - ps->purge_user, - ps->zap_dir, - ps->zap_file, - ps->zap_vnode, - ps->purge_fid, - ps->replace ); - return 0; -} - -static int proc_vfs_stats_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_vfs_stats_show, NULL); -} - -static int proc_cache_inv_stats_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_cache_inv_stats_show, NULL); -} - -static const struct file_operations proc_vfs_stats_fops = { - .owner = THIS_MODULE, - .open = proc_vfs_stats_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static const struct file_operations proc_cache_inv_stats_fops = { - .owner = THIS_MODULE, - .open = proc_cache_inv_stats_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static ctl_table coda_table[] = { { .ctl_name = CTL_UNNUMBERED, @@ -199,22 +32,6 @@ static ctl_table coda_table[] = { }, { .ctl_name = CTL_UNNUMBERED, - .procname = "vfs_stats", - .data = NULL, - .maxlen = 0, - .mode = 0644, - .proc_handler = &do_reset_coda_vfs_stats - }, - { - .ctl_name = CTL_UNNUMBERED, - .procname = "cache_inv_stats", - .data = NULL, - .maxlen = 0, - .mode = 0644, - .proc_handler = &do_reset_coda_cache_inv_stats - }, - { - .ctl_name = CTL_UNNUMBERED, .procname = "fake_statfs", .data = &coda_fake_statfs, .maxlen = sizeof(int), @@ -235,59 +52,20 @@ static ctl_table fs_table[] = { }; -#ifdef CONFIG_PROC_FS - -/* - target directory structure: - /proc/fs (see linux/fs/proc/root.c) - /proc/fs/coda - /proc/fs/coda/{vfs_stats, - -*/ - -static struct proc_dir_entry* proc_fs_coda; - -#endif - void coda_sysctl_init(void) { - reset_coda_vfs_stats(); - reset_coda_cache_inv_stats(); - -#ifdef CONFIG_PROC_FS - proc_fs_coda = proc_mkdir("coda", proc_root_fs); - if (proc_fs_coda) { - struct proc_dir_entry *pde; - - proc_fs_coda->owner = THIS_MODULE; - pde = create_proc_entry("vfs_stats", 0, proc_fs_coda); - if (pde) - pde->proc_fops = &proc_vfs_stats_fops; - pde = create_proc_entry("cache_inv_stats", 0, proc_fs_coda); - if (pde) - pde->proc_fops = &proc_cache_inv_stats_fops; - } -#endif - #ifdef CONFIG_SYSCTL if ( !fs_table_header ) fs_table_header = register_sysctl_table(fs_table); -#endif +#endif } -void coda_sysctl_clean(void) +void coda_sysctl_clean(void) { - #ifdef CONFIG_SYSCTL if ( fs_table_header ) { unregister_sysctl_table(fs_table_header); fs_table_header = NULL; } #endif - -#ifdef CONFIG_PROC_FS - remove_proc_entry("cache_inv_stats", proc_fs_coda); - remove_proc_entry("vfs_stats", proc_fs_coda); - remove_proc_entry("coda", proc_root_fs); -#endif } diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c index 5faacdb1a479..e4e766e5557c 100644 --- a/fs/coda/upcall.c +++ b/fs/coda/upcall.c @@ -35,12 +35,10 @@ #include <linux/coda_psdev.h> #include <linux/coda_fs_i.h> #include <linux/coda_cache.h> -#include <linux/coda_proc.h> -#define upc_alloc() kmalloc(sizeof(struct upc_req), GFP_KERNEL) -#define upc_free(r) kfree(r) +#include "coda_int.h" -static int coda_upcall(struct coda_sb_info *mntinfo, int inSize, int *outSize, +static int coda_upcall(struct venus_comm *vc, int inSize, int *outSize, union inputArgs *buffer); static void *alloc_upcall(int opcode, int size) @@ -86,13 +84,9 @@ int venus_rootfid(struct super_block *sb, struct CodaFid *fidp) insize = SIZE(root); UPARG(CODA_ROOT); - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); - - if (error) { - printk("coda_get_rootfid: error %d\n", error); - } else { + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); + if (!error) *fidp = outp->coda_root.VFid; - } CODA_FREE(inp, insize); return error; @@ -109,9 +103,9 @@ int venus_getattr(struct super_block *sb, struct CodaFid *fid, UPARG(CODA_GETATTR); inp->coda_getattr.VFid = *fid; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); - - *attr = outp->coda_getattr.attr; + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); + if (!error) + *attr = outp->coda_getattr.attr; CODA_FREE(inp, insize); return error; @@ -130,7 +124,7 @@ int venus_setattr(struct super_block *sb, struct CodaFid *fid, inp->coda_setattr.VFid = *fid; inp->coda_setattr.attr = *vattr; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -156,10 +150,11 @@ int venus_lookup(struct super_block *sb, struct CodaFid *fid, memcpy((char *)(inp) + offset, name, length); *((char *)inp + offset + length) = '\0'; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); - - *resfid = outp->coda_lookup.VFid; - *type = outp->coda_lookup.vtype; + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); + if (!error) { + *resfid = outp->coda_lookup.VFid; + *type = outp->coda_lookup.vtype; + } CODA_FREE(inp, insize); return error; @@ -188,7 +183,7 @@ int venus_store(struct super_block *sb, struct CodaFid *fid, int flags, inp->coda_store.VFid = *fid; inp->coda_store.flags = flags; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -206,7 +201,7 @@ int venus_release(struct super_block *sb, struct CodaFid *fid, int flags) inp->coda_release.VFid = *fid; inp->coda_release.flags = flags; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -235,7 +230,7 @@ int venus_close(struct super_block *sb, struct CodaFid *fid, int flags, inp->coda_close.VFid = *fid; inp->coda_close.flags = flags; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -251,12 +246,12 @@ int venus_open(struct super_block *sb, struct CodaFid *fid, insize = SIZE(open_by_fd); UPARG(CODA_OPEN_BY_FD); - inp->coda_open.VFid = *fid; - inp->coda_open.flags = flags; + inp->coda_open_by_fd.VFid = *fid; + inp->coda_open_by_fd.flags = flags; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); - - *fh = outp->coda_open_by_fd.fh; + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); + if (!error) + *fh = outp->coda_open_by_fd.fh; CODA_FREE(inp, insize); return error; @@ -281,11 +276,12 @@ int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, /* Venus must get null terminated string */ memcpy((char *)(inp) + offset, name, length); *((char *)inp + offset + length) = '\0'; - - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); - *attrs = outp->coda_mkdir.attr; - *newfid = outp->coda_mkdir.VFid; + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); + if (!error) { + *attrs = outp->coda_mkdir.attr; + *newfid = outp->coda_mkdir.VFid; + } CODA_FREE(inp, insize); return error; @@ -323,7 +319,7 @@ int venus_rename(struct super_block *sb, struct CodaFid *old_fid, memcpy((char *)(inp) + offset, new_name, new_length); *((char *)inp + offset + new_length) = '\0'; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -351,11 +347,12 @@ int venus_create(struct super_block *sb, struct CodaFid *dirfid, /* Venus must get null terminated string */ memcpy((char *)(inp) + offset, name, length); *((char *)inp + offset + length) = '\0'; - - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); - *attrs = outp->coda_create.attr; - *newfid = outp->coda_create.VFid; + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); + if (!error) { + *attrs = outp->coda_create.attr; + *newfid = outp->coda_create.VFid; + } CODA_FREE(inp, insize); return error; @@ -377,8 +374,8 @@ int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, inp->coda_rmdir.name = offset; memcpy((char *)(inp) + offset, name, length); *((char *)inp + offset + length) = '\0'; - - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -399,8 +396,8 @@ int venus_remove(struct super_block *sb, struct CodaFid *dirfid, inp->coda_remove.name = offset; memcpy((char *)(inp) + offset, name, length); *((char *)inp + offset + length) = '\0'; - - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -420,19 +417,18 @@ int venus_readlink(struct super_block *sb, struct CodaFid *fid, UPARG(CODA_READLINK); inp->coda_readlink.VFid = *fid; - - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); - - if (! error) { - retlen = outp->coda_readlink.count; + + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); + if (!error) { + retlen = outp->coda_readlink.count; if ( retlen > *length ) - retlen = *length; + retlen = *length; *length = retlen; result = (char *)outp + (long)outp->coda_readlink.data; memcpy(buffer, result, retlen); *(buffer + retlen) = '\0'; } - + CODA_FREE(inp, insize); return error; } @@ -458,8 +454,8 @@ int venus_link(struct super_block *sb, struct CodaFid *fid, /* make sure strings are null terminated */ memcpy((char *)(inp) + offset, name, len); *((char *)inp + offset + len) = '\0'; - - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -494,7 +490,7 @@ int venus_symlink(struct super_block *sb, struct CodaFid *fid, memcpy((char *)(inp) + offset, name, len); *((char *)inp + offset + len) = '\0'; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -509,9 +505,9 @@ int venus_fsync(struct super_block *sb, struct CodaFid *fid) insize=SIZE(fsync); UPARG(CODA_FSYNC); - inp->coda_fsync.VFid = *fid; - error = coda_upcall(coda_sbp(sb), sizeof(union inputArgs), - &outsize, inp); + inp->coda_fsync.VFid = *fid; + error = coda_upcall(coda_vcp(sb), sizeof(union inputArgs), + &outsize, inp); CODA_FREE(inp, insize); return error; @@ -529,7 +525,7 @@ int venus_access(struct super_block *sb, struct CodaFid *fid, int mask) inp->coda_access.VFid = *fid; inp->coda_access.flags = mask; - error = coda_upcall(coda_sbp(sb), insize, &outsize, inp); + error = coda_upcall(coda_vcp(sb), insize, &outsize, inp); CODA_FREE(inp, insize); return error; @@ -578,9 +574,9 @@ int venus_pioctl(struct super_block *sb, struct CodaFid *fid, goto exit; } - error = coda_upcall(coda_sbp(sb), SIZE(ioctl) + data->vi.in_size, - &outsize, inp); - + error = coda_upcall(coda_vcp(sb), SIZE(ioctl) + data->vi.in_size, + &outsize, inp); + if (error) { printk("coda_pioctl: Venus returns: %d for %s\n", error, coda_f2s(fid)); @@ -620,16 +616,13 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs) insize = max_t(unsigned int, INSIZE(statfs), OUTSIZE(statfs)); UPARG(CODA_STATFS); - error = coda_upcall(coda_sbp(dentry->d_sb), insize, &outsize, inp); - - if (!error) { + error = coda_upcall(coda_vcp(dentry->d_sb), insize, &outsize, inp); + if (!error) { sfs->f_blocks = outp->coda_statfs.stat.f_blocks; sfs->f_bfree = outp->coda_statfs.stat.f_bfree; sfs->f_bavail = outp->coda_statfs.stat.f_bavail; sfs->f_files = outp->coda_statfs.stat.f_files; sfs->f_ffree = outp->coda_statfs.stat.f_ffree; - } else { - printk("coda_statfs: Venus returns: %d\n", error); } CODA_FREE(inp, insize); @@ -638,96 +631,129 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs) /* * coda_upcall and coda_downcall routines. - * */ +static void block_signals(sigset_t *old) +{ + spin_lock_irq(¤t->sighand->siglock); + *old = current->blocked; + + sigfillset(¤t->blocked); + sigdelset(¤t->blocked, SIGKILL); + sigdelset(¤t->blocked, SIGSTOP); + sigdelset(¤t->blocked, SIGINT); + + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); +} + +static void unblock_signals(sigset_t *old) +{ + spin_lock_irq(¤t->sighand->siglock); + current->blocked = *old; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); +} + +/* Don't allow signals to interrupt the following upcalls before venus + * has seen them, + * - CODA_CLOSE or CODA_RELEASE upcall (to avoid reference count problems) + * - CODA_STORE (to avoid data loss) + */ +#define CODA_INTERRUPTIBLE(r) (!coda_hard && \ + (((r)->uc_opcode != CODA_CLOSE && \ + (r)->uc_opcode != CODA_STORE && \ + (r)->uc_opcode != CODA_RELEASE) || \ + (r)->uc_flags & REQ_READ)) -static inline void coda_waitfor_upcall(struct upc_req *vmp, - struct venus_comm *vcommp) +static inline void coda_waitfor_upcall(struct upc_req *req) { DECLARE_WAITQUEUE(wait, current); + unsigned long timeout = jiffies + coda_timeout * HZ; + sigset_t old; + int blocked; - vmp->uc_posttime = jiffies; + block_signals(&old); + blocked = 1; - add_wait_queue(&vmp->uc_sleep, &wait); + add_wait_queue(&req->uc_sleep, &wait); for (;;) { - if ( !coda_hard && vmp->uc_opcode != CODA_CLOSE ) + if (CODA_INTERRUPTIBLE(req)) set_current_state(TASK_INTERRUPTIBLE); else set_current_state(TASK_UNINTERRUPTIBLE); - /* venus died */ - if ( !vcommp->vc_inuse ) - break; - /* got a reply */ - if ( vmp->uc_flags & ( REQ_WRITE | REQ_ABORT ) ) + if (req->uc_flags & (REQ_WRITE | REQ_ABORT)) break; - if ( !coda_hard && vmp->uc_opcode != CODA_CLOSE && signal_pending(current) ) { - /* if this process really wants to die, let it go */ - if ( sigismember(&(current->pending.signal), SIGKILL) || - sigismember(&(current->pending.signal), SIGINT) ) - break; - /* signal is present: after timeout always return - really smart idea, probably useless ... */ - if ( jiffies - vmp->uc_posttime > coda_timeout * HZ ) - break; + if (blocked && time_after(jiffies, timeout) && + CODA_INTERRUPTIBLE(req)) + { + unblock_signals(&old); + blocked = 0; + } + + if (signal_pending(current)) { + list_del(&req->uc_chain); + break; } - schedule(); + + if (blocked) + schedule_timeout(HZ); + else + schedule(); } - remove_wait_queue(&vmp->uc_sleep, &wait); - set_current_state(TASK_RUNNING); + if (blocked) + unblock_signals(&old); - return; + remove_wait_queue(&req->uc_sleep, &wait); + set_current_state(TASK_RUNNING); } -/* - * coda_upcall will return an error in the case of +/* + * coda_upcall will return an error in the case of * failed communication with Venus _or_ will peek at Venus * reply and return Venus' error. * * As venus has 2 types of errors, normal errors (positive) and internal * errors (negative), normal errors are negated, while internal errors * are all mapped to -EINTR, while showing a nice warning message. (jh) - * */ -static int coda_upcall(struct coda_sb_info *sbi, - int inSize, int *outSize, - union inputArgs *buffer) +static int coda_upcall(struct venus_comm *vcp, + int inSize, int *outSize, + union inputArgs *buffer) { - struct venus_comm *vcommp; union outputArgs *out; - struct upc_req *req; + union inputArgs *sig_inputArgs; + struct upc_req *req, *sig_req; int error = 0; - vcommp = sbi->sbi_vcomm; - if ( !vcommp->vc_inuse ) { - printk("No pseudo device in upcall comms at %p\n", vcommp); - return -ENXIO; + if (!vcp->vc_inuse) { + printk(KERN_NOTICE "coda: Venus dead, not sending upcall\n"); + return -ENXIO; } /* Format the request message. */ - req = upc_alloc(); - if (!req) { - printk("Failed to allocate upc_req structure\n"); + req = kmalloc(sizeof(struct upc_req), GFP_KERNEL); + if (!req) return -ENOMEM; - } + req->uc_data = (void *)buffer; req->uc_flags = 0; req->uc_inSize = inSize; req->uc_outSize = *outSize ? *outSize : inSize; req->uc_opcode = ((union inputArgs *)buffer)->ih.opcode; - req->uc_unique = ++vcommp->vc_seq; + req->uc_unique = ++vcp->vc_seq; init_waitqueue_head(&req->uc_sleep); - + /* Fill in the common input args. */ ((union inputArgs *)buffer)->ih.unique = req->uc_unique; /* Append msg to pending queue and poke Venus. */ - list_add_tail(&(req->uc_chain), &vcommp->vc_pending); - - wake_up_interruptible(&vcommp->vc_waitq); + list_add_tail(&req->uc_chain, &vcp->vc_pending); + + wake_up_interruptible(&vcp->vc_waitq); /* We can be interrupted while we wait for Venus to process * our request. If the interrupt occurs before Venus has read * the request, we dequeue and return. If it occurs after the @@ -738,67 +764,60 @@ static int coda_upcall(struct coda_sb_info *sbi, * ENODEV. */ /* Go to sleep. Wake up on signals only after the timeout. */ - coda_waitfor_upcall(req, vcommp); + coda_waitfor_upcall(req); - if (vcommp->vc_inuse) { /* i.e. Venus is still alive */ - /* Op went through, interrupt or not... */ - if (req->uc_flags & REQ_WRITE) { + /* Op went through, interrupt or not... */ + if (req->uc_flags & REQ_WRITE) { out = (union outputArgs *)req->uc_data; /* here we map positive Venus errors to kernel errors */ error = -out->oh.result; *outSize = req->uc_outSize; goto exit; - } - if ( !(req->uc_flags & REQ_READ) && signal_pending(current)) { - /* Interrupted before venus read it. */ - list_del(&(req->uc_chain)); - /* perhaps the best way to convince the app to - give up? */ - error = -EINTR; + } + + error = -EINTR; + if ((req->uc_flags & REQ_ABORT) || !signal_pending(current)) { + printk(KERN_WARNING "coda: Unexpected interruption.\n"); goto exit; - } - if ( (req->uc_flags & REQ_READ) && signal_pending(current) ) { - /* interrupted after Venus did its read, send signal */ - union inputArgs *sig_inputArgs; - struct upc_req *sig_req; - - list_del(&(req->uc_chain)); - error = -ENOMEM; - sig_req = upc_alloc(); - if (!sig_req) goto exit; - - CODA_ALLOC((sig_req->uc_data), char *, sizeof(struct coda_in_hdr)); - if (!sig_req->uc_data) { - upc_free(sig_req); - goto exit; - } - - error = -EINTR; - sig_inputArgs = (union inputArgs *)sig_req->uc_data; - sig_inputArgs->ih.opcode = CODA_SIGNAL; - sig_inputArgs->ih.unique = req->uc_unique; - - sig_req->uc_flags = REQ_ASYNC; - sig_req->uc_opcode = sig_inputArgs->ih.opcode; - sig_req->uc_unique = sig_inputArgs->ih.unique; - sig_req->uc_inSize = sizeof(struct coda_in_hdr); - sig_req->uc_outSize = sizeof(struct coda_in_hdr); - - /* insert at head of queue! */ - list_add(&(sig_req->uc_chain), &vcommp->vc_pending); - wake_up_interruptible(&vcommp->vc_waitq); - } else { - printk("Coda: Strange interruption..\n"); - error = -EINTR; - } - } else { /* If venus died i.e. !VC_OPEN(vcommp) */ - printk("coda_upcall: Venus dead on (op,un) (%d.%d) flags %d\n", - req->uc_opcode, req->uc_unique, req->uc_flags); - error = -ENODEV; } - exit: - upc_free(req); + /* Interrupted before venus read it. */ + if (!(req->uc_flags & REQ_READ)) + goto exit; + + /* Venus saw the upcall, make sure we can send interrupt signal */ + if (!vcp->vc_inuse) { + printk(KERN_INFO "coda: Venus dead, not sending signal.\n"); + goto exit; + } + + error = -ENOMEM; + sig_req = kmalloc(sizeof(struct upc_req), GFP_KERNEL); + if (!sig_req) goto exit; + + CODA_ALLOC((sig_req->uc_data), char *, sizeof(struct coda_in_hdr)); + if (!sig_req->uc_data) { + kfree(sig_req); + goto exit; + } + + error = -EINTR; + sig_inputArgs = (union inputArgs *)sig_req->uc_data; + sig_inputArgs->ih.opcode = CODA_SIGNAL; + sig_inputArgs->ih.unique = req->uc_unique; + + sig_req->uc_flags = REQ_ASYNC; + sig_req->uc_opcode = sig_inputArgs->ih.opcode; + sig_req->uc_unique = sig_inputArgs->ih.unique; + sig_req->uc_inSize = sizeof(struct coda_in_hdr); + sig_req->uc_outSize = sizeof(struct coda_in_hdr); + + /* insert at head of queue! */ + list_add(&(sig_req->uc_chain), &vcp->vc_pending); + wake_up_interruptible(&vcp->vc_waitq); + +exit: + kfree(req); return error; } @@ -838,77 +857,66 @@ static int coda_upcall(struct coda_sb_info *sbi, int coda_downcall(int opcode, union outputArgs * out, struct super_block *sb) { + struct inode *inode = NULL; + struct CodaFid *fid, *newfid; + /* Handle invalidation requests. */ - if ( !sb || !sb->s_root || !sb->s_root->d_inode) - return 0; - - switch (opcode) { - - case CODA_FLUSH : { - coda_cache_clear_all(sb); - shrink_dcache_sb(sb); - coda_flag_inode(sb->s_root->d_inode, C_FLUSH); - return(0); - } - - case CODA_PURGEUSER : { - coda_cache_clear_all(sb); - return(0); - } - - case CODA_ZAPDIR : { - struct inode *inode; - struct CodaFid *fid = &out->coda_zapdir.CodaFid; - - inode = coda_fid_to_inode(fid, sb); - if (inode) { - coda_flag_inode_children(inode, C_PURGE); - coda_flag_inode(inode, C_VATTR); - iput(inode); - } - - return(0); - } - - case CODA_ZAPFILE : { - struct inode *inode; - struct CodaFid *fid = &out->coda_zapfile.CodaFid; - inode = coda_fid_to_inode(fid, sb); - if ( inode ) { - coda_flag_inode(inode, C_VATTR); - iput(inode); - } - return 0; - } - - case CODA_PURGEFID : { - struct inode *inode; - struct CodaFid *fid = &out->coda_purgefid.CodaFid; - inode = coda_fid_to_inode(fid, sb); - if ( inode ) { + if ( !sb || !sb->s_root) + return 0; + + switch (opcode) { + case CODA_FLUSH: + coda_cache_clear_all(sb); + shrink_dcache_sb(sb); + if (sb->s_root->d_inode) + coda_flag_inode(sb->s_root->d_inode, C_FLUSH); + break; + + case CODA_PURGEUSER: + coda_cache_clear_all(sb); + break; + + case CODA_ZAPDIR: + fid = &out->coda_zapdir.CodaFid; + inode = coda_fid_to_inode(fid, sb); + if (inode) { + coda_flag_inode_children(inode, C_PURGE); + coda_flag_inode(inode, C_VATTR); + } + break; + + case CODA_ZAPFILE: + fid = &out->coda_zapfile.CodaFid; + inode = coda_fid_to_inode(fid, sb); + if (inode) + coda_flag_inode(inode, C_VATTR); + break; + + case CODA_PURGEFID: + fid = &out->coda_purgefid.CodaFid; + inode = coda_fid_to_inode(fid, sb); + if (inode) { coda_flag_inode_children(inode, C_PURGE); /* catch the dentries later if some are still busy */ coda_flag_inode(inode, C_PURGE); d_prune_aliases(inode); - iput(inode); - } - return 0; - } - - case CODA_REPLACE : { - struct inode *inode; - struct CodaFid *oldfid = &out->coda_replace.OldFid; - struct CodaFid *newfid = &out->coda_replace.NewFid; - inode = coda_fid_to_inode(oldfid, sb); - if ( inode ) { - coda_replace_fid(inode, oldfid, newfid); - iput(inode); - } - return 0; - } - } - return 0; + } + break; + + case CODA_REPLACE: + fid = &out->coda_replace.OldFid; + newfid = &out->coda_replace.NewFid; + inode = coda_fid_to_inode(fid, sb); + if (inode) + coda_replace_fid(inode, fid, newfid); + break; + } + + if (inode) + iput(inode); + + return 0; } diff --git a/fs/compat.c b/fs/compat.c index 4db6216e5266..15078ce4c04a 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1257,6 +1257,7 @@ static int compat_copy_strings(int argc, compat_uptr_t __user *argv, { struct page *kmapped_page = NULL; char *kaddr = NULL; + unsigned long kpos = 0; int ret; while (argc-- > 0) { @@ -1265,92 +1266,84 @@ static int compat_copy_strings(int argc, compat_uptr_t __user *argv, unsigned long pos; if (get_user(str, argv+argc) || - !(len = strnlen_user(compat_ptr(str), bprm->p))) { + !(len = strnlen_user(compat_ptr(str), MAX_ARG_STRLEN))) { ret = -EFAULT; goto out; } - if (bprm->p < len) { + if (len > MAX_ARG_STRLEN) { ret = -E2BIG; goto out; } - bprm->p -= len; - /* XXX: add architecture specific overflow check here. */ + /* We're going to work our way backwords. */ pos = bprm->p; + str += len; + bprm->p -= len; while (len > 0) { - int i, new, err; int offset, bytes_to_copy; - struct page *page; offset = pos % PAGE_SIZE; - i = pos/PAGE_SIZE; - page = bprm->page[i]; - new = 0; - if (!page) { - page = alloc_page(GFP_HIGHUSER); - bprm->page[i] = page; - if (!page) { - ret = -ENOMEM; + if (offset == 0) + offset = PAGE_SIZE; + + bytes_to_copy = offset; + if (bytes_to_copy > len) + bytes_to_copy = len; + + offset -= bytes_to_copy; + pos -= bytes_to_copy; + str -= bytes_to_copy; + len -= bytes_to_copy; + + if (!kmapped_page || kpos != (pos & PAGE_MASK)) { + struct page *page; + +#ifdef CONFIG_STACK_GROWSUP + ret = expand_stack_downwards(bprm->vma, pos); + if (ret < 0) { + /* We've exceed the stack rlimit. */ + ret = -E2BIG; + goto out; + } +#endif + ret = get_user_pages(current, bprm->mm, pos, + 1, 1, 1, &page, NULL); + if (ret <= 0) { + /* We've exceed the stack rlimit. */ + ret = -E2BIG; goto out; } - new = 1; - } - if (page != kmapped_page) { - if (kmapped_page) + if (kmapped_page) { + flush_kernel_dcache_page(kmapped_page); kunmap(kmapped_page); + put_page(kmapped_page); + } kmapped_page = page; kaddr = kmap(kmapped_page); + kpos = pos & PAGE_MASK; + flush_cache_page(bprm->vma, kpos, + page_to_pfn(kmapped_page)); } - if (new && offset) - memset(kaddr, 0, offset); - bytes_to_copy = PAGE_SIZE - offset; - if (bytes_to_copy > len) { - bytes_to_copy = len; - if (new) - memset(kaddr+offset+len, 0, - PAGE_SIZE-offset-len); - } - err = copy_from_user(kaddr+offset, compat_ptr(str), - bytes_to_copy); - if (err) { + if (copy_from_user(kaddr+offset, compat_ptr(str), + bytes_to_copy)) { ret = -EFAULT; goto out; } - - pos += bytes_to_copy; - str += bytes_to_copy; - len -= bytes_to_copy; } } ret = 0; out: - if (kmapped_page) + if (kmapped_page) { + flush_kernel_dcache_page(kmapped_page); kunmap(kmapped_page); - return ret; -} - -#ifdef CONFIG_MMU - -#define free_arg_pages(bprm) do { } while (0) - -#else - -static inline void free_arg_pages(struct linux_binprm *bprm) -{ - int i; - - for (i = 0; i < MAX_ARG_PAGES; i++) { - if (bprm->page[i]) - __free_page(bprm->page[i]); - bprm->page[i] = NULL; + put_page(kmapped_page); } + return ret; } -#endif /* CONFIG_MMU */ - /* * compat_do_execve() is mostly a copy of do_execve(), with the exception * that it processes 32 bit argv and envp pointers. @@ -1363,7 +1356,6 @@ int compat_do_execve(char * filename, struct linux_binprm *bprm; struct file *file; int retval; - int i; retval = -ENOMEM; bprm = kzalloc(sizeof(*bprm), GFP_KERNEL); @@ -1377,24 +1369,19 @@ int compat_do_execve(char * filename, sched_exec(); - bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *); bprm->file = file; bprm->filename = filename; bprm->interp = filename; - bprm->mm = mm_alloc(); - retval = -ENOMEM; - if (!bprm->mm) - goto out_file; - retval = init_new_context(current, bprm->mm); - if (retval < 0) - goto out_mm; + retval = bprm_mm_init(bprm); + if (retval) + goto out_file; - bprm->argc = compat_count(argv, bprm->p / sizeof(compat_uptr_t)); + bprm->argc = compat_count(argv, MAX_ARG_STRINGS); if ((retval = bprm->argc) < 0) goto out_mm; - bprm->envc = compat_count(envp, bprm->p / sizeof(compat_uptr_t)); + bprm->envc = compat_count(envp, MAX_ARG_STRINGS); if ((retval = bprm->envc) < 0) goto out_mm; @@ -1421,8 +1408,6 @@ int compat_do_execve(char * filename, retval = search_binary_handler(bprm, regs); if (retval >= 0) { - free_arg_pages(bprm); - /* execve success */ security_bprm_free(bprm); acct_update_integrals(current); @@ -1431,19 +1416,12 @@ int compat_do_execve(char * filename, } out: - /* Something went wrong, return the inode and free the argument pages*/ - for (i = 0 ; i < MAX_ARG_PAGES ; i++) { - struct page * page = bprm->page[i]; - if (page) - __free_page(page); - } - if (bprm->security) security_bprm_free(bprm); out_mm: if (bprm->mm) - mmdrop(bprm->mm); + mmput(bprm->mm); out_file: if (bprm->file) { diff --git a/fs/dcache.c b/fs/dcache.c index 0e73aa0a0e8b..cb9d05056b54 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -883,6 +883,11 @@ static int shrink_dcache_memory(int nr, gfp_t gfp_mask) return (dentry_stat.nr_unused / 100) * sysctl_vfs_cache_pressure; } +static struct shrinker dcache_shrinker = { + .shrink = shrink_dcache_memory, + .seeks = DEFAULT_SEEKS, +}; + /** * d_alloc - allocate a dcache entry * @parent: parent of entry to allocate @@ -2115,7 +2120,7 @@ static void __init dcache_init(unsigned long mempages) dentry_cache = KMEM_CACHE(dentry, SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|SLAB_MEM_SPREAD); - set_shrinker(DEFAULT_SEEKS, shrink_dcache_memory); + register_shrinker(&dcache_shrinker); /* Hash may have been set up in dcache_init_early */ if (!hashdist) diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 1d533a2ec3a6..11be8a325e26 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -345,11 +345,6 @@ void debugfs_remove(struct dentry *dentry) switch (dentry->d_inode->i_mode & S_IFMT) { case S_IFDIR: ret = simple_rmdir(parent->d_inode, dentry); - if (ret) - printk(KERN_ERR - "DebugFS rmdir on %s failed : " - "directory not empty.\n", - dentry->d_name.name); break; case S_IFLNK: kfree(dentry->d_inode->i_private); diff --git a/fs/dlm/memory.c b/fs/dlm/memory.c index f858fef6e41c..fb9e2ee998ae 100644 --- a/fs/dlm/memory.c +++ b/fs/dlm/memory.c @@ -39,9 +39,7 @@ char *allocate_lvb(struct dlm_ls *ls) { char *p; - p = kmalloc(ls->ls_lvblen, GFP_KERNEL); - if (p) - memset(p, 0, ls->ls_lvblen); + p = kzalloc(ls->ls_lvblen, GFP_KERNEL); return p; } @@ -59,9 +57,7 @@ struct dlm_rsb *allocate_rsb(struct dlm_ls *ls, int namelen) DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,); - r = kmalloc(sizeof(*r) + namelen, GFP_KERNEL); - if (r) - memset(r, 0, sizeof(*r) + namelen); + r = kzalloc(sizeof(*r) + namelen, GFP_KERNEL); return r; } @@ -101,9 +97,7 @@ struct dlm_direntry *allocate_direntry(struct dlm_ls *ls, int namelen) DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN, printk("namelen = %d\n", namelen);); - de = kmalloc(sizeof(*de) + namelen, GFP_KERNEL); - if (de) - memset(de, 0, sizeof(*de) + namelen); + de = kzalloc(sizeof(*de) + namelen, GFP_KERNEL); return de; } diff --git a/fs/dquot.c b/fs/dquot.c index 8819d281500c..7e273151f589 100644 --- a/fs/dquot.c +++ b/fs/dquot.c @@ -538,6 +538,11 @@ static int shrink_dqcache_memory(int nr, gfp_t gfp_mask) return (dqstats.free_dquots / 100) * sysctl_vfs_cache_pressure; } +static struct shrinker dqcache_shrinker = { + .shrink = shrink_dqcache_memory, + .seeks = DEFAULT_SEEKS, +}; + /* * Put reference to dquot * NOTE: If you change this function please check whether dqput_blocks() works right... @@ -1870,7 +1875,7 @@ static int __init dquot_init(void) printk("Dquot-cache hash table entries: %ld (order %ld, %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order)); - set_shrinker(DEFAULT_SEEKS, shrink_dqcache_memory); + register_shrinker(&dqcache_shrinker); return 0; } diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 83e94fedd4e9..0a50942b4378 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -282,7 +282,7 @@ static struct dentry *ecryptfs_lookup(struct inode *dir, struct dentry *dentry, struct dentry *lower_dentry; struct vfsmount *lower_mnt; char *encoded_name; - unsigned int encoded_namelen; + int encoded_namelen; struct ecryptfs_crypt_stat *crypt_stat = NULL; struct ecryptfs_mount_crypt_stat *mount_crypt_stat; char *page_virt = NULL; @@ -473,7 +473,7 @@ static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry, struct dentry *lower_dir_dentry; umode_t mode; char *encoded_symname; - unsigned int encoded_symlen; + int encoded_symlen; struct ecryptfs_crypt_stat *crypt_stat = NULL; lower_dentry = ecryptfs_dentry_to_lower(dentry); @@ -902,8 +902,9 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) mutex_lock(&crypt_stat->cs_mutex); if (S_ISDIR(dentry->d_inode->i_mode)) crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED); - else if (!(crypt_stat->flags & ECRYPTFS_POLICY_APPLIED) - || !(crypt_stat->flags & ECRYPTFS_KEY_VALID)) { + else if (S_ISREG(dentry->d_inode->i_mode) + && (!(crypt_stat->flags & ECRYPTFS_POLICY_APPLIED) + || !(crypt_stat->flags & ECRYPTFS_KEY_VALID))) { struct vfsmount *lower_mnt; struct file *lower_file = NULL; struct ecryptfs_mount_crypt_stat *mount_crypt_stat; diff --git a/fs/efs/namei.c b/fs/efs/namei.c index ed4a207fe22a..5276b19423c1 100644 --- a/fs/efs/namei.c +++ b/fs/efs/namei.c @@ -75,6 +75,38 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei return NULL; } +struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp) +{ + __u32 *objp = vobjp; + unsigned long ino = objp[0]; + __u32 generation = objp[1]; + struct inode *inode; + struct dentry *result; + + if (ino == 0) + return ERR_PTR(-ESTALE); + inode = iget(sb, ino); + if (inode == NULL) + return ERR_PTR(-ENOMEM); + + if (is_bad_inode(inode) || + (generation && inode->i_generation != generation)) { + result = ERR_PTR(-ESTALE); + goto out_iput; + } + + result = d_alloc_anon(inode); + if (!result) { + result = ERR_PTR(-ENOMEM); + goto out_iput; + } + return result; + + out_iput: + iput(inode); + return result; +} + struct dentry *efs_get_parent(struct dentry *child) { struct dentry *parent; diff --git a/fs/efs/super.c b/fs/efs/super.c index e0a6839e68ae..d360c81f3a72 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -11,6 +11,7 @@ #include <linux/efs_fs.h> #include <linux/efs_vh.h> #include <linux/efs_fs_sb.h> +#include <linux/exportfs.h> #include <linux/slab.h> #include <linux/buffer_head.h> #include <linux/vfs.h> @@ -113,6 +114,7 @@ static const struct super_operations efs_superblock_operations = { }; static struct export_operations efs_export_ops = { + .get_dentry = efs_get_dentry, .get_parent = efs_get_parent, }; diff --git a/fs/exec.c b/fs/exec.c index f20561ff4528..7bdea7937ee8 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -54,6 +54,7 @@ #include <asm/uaccess.h> #include <asm/mmu_context.h> +#include <asm/tlb.h> #ifdef CONFIG_KMOD #include <linux/kmod.h> @@ -178,6 +179,207 @@ exit: goto out; } +#ifdef CONFIG_MMU + +static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, + int write) +{ + struct page *page; + int ret; + +#ifdef CONFIG_STACK_GROWSUP + if (write) { + ret = expand_stack_downwards(bprm->vma, pos); + if (ret < 0) + return NULL; + } +#endif + ret = get_user_pages(current, bprm->mm, pos, + 1, write, 1, &page, NULL); + if (ret <= 0) + return NULL; + + if (write) { + struct rlimit *rlim = current->signal->rlim; + unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start; + + /* + * Limit to 1/4-th the stack size for the argv+env strings. + * This ensures that: + * - the remaining binfmt code will not run out of stack space, + * - the program will have a reasonable amount of stack left + * to work from. + */ + if (size > rlim[RLIMIT_STACK].rlim_cur / 4) { + put_page(page); + return NULL; + } + } + + return page; +} + +static void put_arg_page(struct page *page) +{ + put_page(page); +} + +static void free_arg_page(struct linux_binprm *bprm, int i) +{ +} + +static void free_arg_pages(struct linux_binprm *bprm) +{ +} + +static void flush_arg_page(struct linux_binprm *bprm, unsigned long pos, + struct page *page) +{ + flush_cache_page(bprm->vma, pos, page_to_pfn(page)); +} + +static int __bprm_mm_init(struct linux_binprm *bprm) +{ + int err = -ENOMEM; + struct vm_area_struct *vma = NULL; + struct mm_struct *mm = bprm->mm; + + bprm->vma = vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); + if (!vma) + goto err; + + down_write(&mm->mmap_sem); + vma->vm_mm = mm; + + /* + * Place the stack at the largest stack address the architecture + * supports. Later, we'll move this to an appropriate place. We don't + * use STACK_TOP because that can depend on attributes which aren't + * configured yet. + */ + vma->vm_end = STACK_TOP_MAX; + vma->vm_start = vma->vm_end - PAGE_SIZE; + + vma->vm_flags = VM_STACK_FLAGS; + vma->vm_page_prot = protection_map[vma->vm_flags & 0x7]; + err = insert_vm_struct(mm, vma); + if (err) { + up_write(&mm->mmap_sem); + goto err; + } + + mm->stack_vm = mm->total_vm = 1; + up_write(&mm->mmap_sem); + + bprm->p = vma->vm_end - sizeof(void *); + + return 0; + +err: + if (vma) { + bprm->vma = NULL; + kmem_cache_free(vm_area_cachep, vma); + } + + return err; +} + +static bool valid_arg_len(struct linux_binprm *bprm, long len) +{ + return len <= MAX_ARG_STRLEN; +} + +#else + +static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, + int write) +{ + struct page *page; + + page = bprm->page[pos / PAGE_SIZE]; + if (!page && write) { + page = alloc_page(GFP_HIGHUSER|__GFP_ZERO); + if (!page) + return NULL; + bprm->page[pos / PAGE_SIZE] = page; + } + + return page; +} + +static void put_arg_page(struct page *page) +{ +} + +static void free_arg_page(struct linux_binprm *bprm, int i) +{ + if (bprm->page[i]) { + __free_page(bprm->page[i]); + bprm->page[i] = NULL; + } +} + +static void free_arg_pages(struct linux_binprm *bprm) +{ + int i; + + for (i = 0; i < MAX_ARG_PAGES; i++) + free_arg_page(bprm, i); +} + +static void flush_arg_page(struct linux_binprm *bprm, unsigned long pos, + struct page *page) +{ +} + +static int __bprm_mm_init(struct linux_binprm *bprm) +{ + bprm->p = PAGE_SIZE * MAX_ARG_PAGES - sizeof(void *); + return 0; +} + +static bool valid_arg_len(struct linux_binprm *bprm, long len) +{ + return len <= bprm->p; +} + +#endif /* CONFIG_MMU */ + +/* + * Create a new mm_struct and populate it with a temporary stack + * vm_area_struct. We don't have enough context at this point to set the stack + * flags, permissions, and offset, so we use temporary values. We'll update + * them later in setup_arg_pages(). + */ +int bprm_mm_init(struct linux_binprm *bprm) +{ + int err; + struct mm_struct *mm = NULL; + + bprm->mm = mm = mm_alloc(); + err = -ENOMEM; + if (!mm) + goto err; + + err = init_new_context(current, mm); + if (err) + goto err; + + err = __bprm_mm_init(bprm); + if (err) + goto err; + + return 0; + +err: + if (mm) { + bprm->mm = NULL; + mmdrop(mm); + } + + return err; +} + /* * count() counts the number of strings in array ARGV. */ @@ -203,15 +405,16 @@ static int count(char __user * __user * argv, int max) } /* - * 'copy_strings()' copies argument/environment strings from user - * memory to free pages in kernel mem. These are in a format ready - * to be put directly into the top of new user memory. + * 'copy_strings()' copies argument/environment strings from the old + * processes's memory to the new process's stack. The call to get_user_pages() + * ensures the destination page is created and not swapped out. */ static int copy_strings(int argc, char __user * __user * argv, struct linux_binprm *bprm) { struct page *kmapped_page = NULL; char *kaddr = NULL; + unsigned long kpos = 0; int ret; while (argc-- > 0) { @@ -220,69 +423,69 @@ static int copy_strings(int argc, char __user * __user * argv, unsigned long pos; if (get_user(str, argv+argc) || - !(len = strnlen_user(str, bprm->p))) { + !(len = strnlen_user(str, MAX_ARG_STRLEN))) { ret = -EFAULT; goto out; } - if (bprm->p < len) { + if (!valid_arg_len(bprm, len)) { ret = -E2BIG; goto out; } - bprm->p -= len; - /* XXX: add architecture specific overflow check here. */ + /* We're going to work our way backwords. */ pos = bprm->p; + str += len; + bprm->p -= len; while (len > 0) { - int i, new, err; int offset, bytes_to_copy; - struct page *page; offset = pos % PAGE_SIZE; - i = pos/PAGE_SIZE; - page = bprm->page[i]; - new = 0; - if (!page) { - page = alloc_page(GFP_HIGHUSER); - bprm->page[i] = page; + if (offset == 0) + offset = PAGE_SIZE; + + bytes_to_copy = offset; + if (bytes_to_copy > len) + bytes_to_copy = len; + + offset -= bytes_to_copy; + pos -= bytes_to_copy; + str -= bytes_to_copy; + len -= bytes_to_copy; + + if (!kmapped_page || kpos != (pos & PAGE_MASK)) { + struct page *page; + + page = get_arg_page(bprm, pos, 1); if (!page) { - ret = -ENOMEM; + ret = -E2BIG; goto out; } - new = 1; - } - if (page != kmapped_page) { - if (kmapped_page) + if (kmapped_page) { + flush_kernel_dcache_page(kmapped_page); kunmap(kmapped_page); + put_arg_page(kmapped_page); + } kmapped_page = page; kaddr = kmap(kmapped_page); + kpos = pos & PAGE_MASK; + flush_arg_page(bprm, kpos, kmapped_page); } - if (new && offset) - memset(kaddr, 0, offset); - bytes_to_copy = PAGE_SIZE - offset; - if (bytes_to_copy > len) { - bytes_to_copy = len; - if (new) - memset(kaddr+offset+len, 0, - PAGE_SIZE-offset-len); - } - err = copy_from_user(kaddr+offset, str, bytes_to_copy); - if (err) { + if (copy_from_user(kaddr+offset, str, bytes_to_copy)) { ret = -EFAULT; goto out; } - - pos += bytes_to_copy; - str += bytes_to_copy; - len -= bytes_to_copy; } } ret = 0; out: - if (kmapped_page) + if (kmapped_page) { + flush_kernel_dcache_page(kmapped_page); kunmap(kmapped_page); + put_arg_page(kmapped_page); + } return ret; } @@ -298,181 +501,172 @@ int copy_strings_kernel(int argc,char ** argv, struct linux_binprm *bprm) set_fs(oldfs); return r; } - EXPORT_SYMBOL(copy_strings_kernel); #ifdef CONFIG_MMU + /* - * This routine is used to map in a page into an address space: needed by - * execve() for the initial stack and environment pages. + * During bprm_mm_init(), we create a temporary stack at STACK_TOP_MAX. Once + * the binfmt code determines where the new stack should reside, we shift it to + * its final location. The process proceeds as follows: * - * vma->vm_mm->mmap_sem is held for writing. + * 1) Use shift to calculate the new vma endpoints. + * 2) Extend vma to cover both the old and new ranges. This ensures the + * arguments passed to subsequent functions are consistent. + * 3) Move vma's page tables to the new range. + * 4) Free up any cleared pgd range. + * 5) Shrink the vma to cover only the new range. */ -void install_arg_page(struct vm_area_struct *vma, - struct page *page, unsigned long address) +static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift) { struct mm_struct *mm = vma->vm_mm; - pte_t * pte; - spinlock_t *ptl; + unsigned long old_start = vma->vm_start; + unsigned long old_end = vma->vm_end; + unsigned long length = old_end - old_start; + unsigned long new_start = old_start - shift; + unsigned long new_end = old_end - shift; + struct mmu_gather *tlb; - if (unlikely(anon_vma_prepare(vma))) - goto out; + BUG_ON(new_start > new_end); - flush_dcache_page(page); - pte = get_locked_pte(mm, address, &ptl); - if (!pte) - goto out; - if (!pte_none(*pte)) { - pte_unmap_unlock(pte, ptl); - goto out; + /* + * ensure there are no vmas between where we want to go + * and where we are + */ + if (vma != find_vma(mm, new_start)) + return -EFAULT; + + /* + * cover the whole range: [new_start, old_end) + */ + vma_adjust(vma, new_start, old_end, vma->vm_pgoff, NULL); + + /* + * move the page tables downwards, on failure we rely on + * process cleanup to remove whatever mess we made. + */ + if (length != move_page_tables(vma, old_start, + vma, new_start, length)) + return -ENOMEM; + + lru_add_drain(); + tlb = tlb_gather_mmu(mm, 0); + if (new_end > old_start) { + /* + * when the old and new regions overlap clear from new_end. + */ + free_pgd_range(&tlb, new_end, old_end, new_end, + vma->vm_next ? vma->vm_next->vm_start : 0); + } else { + /* + * otherwise, clean from old_start; this is done to not touch + * the address space in [new_end, old_start) some architectures + * have constraints on va-space that make this illegal (IA64) - + * for the others its just a little faster. + */ + free_pgd_range(&tlb, old_start, old_end, new_end, + vma->vm_next ? vma->vm_next->vm_start : 0); } - inc_mm_counter(mm, anon_rss); - lru_cache_add_active(page); - set_pte_at(mm, address, pte, pte_mkdirty(pte_mkwrite(mk_pte( - page, vma->vm_page_prot)))); - page_add_new_anon_rmap(page, vma, address); - pte_unmap_unlock(pte, ptl); - - /* no need for flush_tlb */ - return; -out: - __free_page(page); - force_sig(SIGKILL, current); + tlb_finish_mmu(tlb, new_end, old_end); + + /* + * shrink the vma to just the new range. + */ + vma_adjust(vma, new_start, new_end, vma->vm_pgoff, NULL); + + return 0; } #define EXTRA_STACK_VM_PAGES 20 /* random */ +/* + * Finalizes the stack vm_area_struct. The flags and permissions are updated, + * the stack is optionally relocated, and some extra space is added. + */ int setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int executable_stack) { - unsigned long stack_base; - struct vm_area_struct *mpnt; + unsigned long ret; + unsigned long stack_shift; struct mm_struct *mm = current->mm; - int i, ret; - long arg_size; + struct vm_area_struct *vma = bprm->vma; + struct vm_area_struct *prev = NULL; + unsigned long vm_flags; + unsigned long stack_base; #ifdef CONFIG_STACK_GROWSUP - /* Move the argument and environment strings to the bottom of the - * stack space. - */ - int offset, j; - char *to, *from; - - /* Start by shifting all the pages down */ - i = 0; - for (j = 0; j < MAX_ARG_PAGES; j++) { - struct page *page = bprm->page[j]; - if (!page) - continue; - bprm->page[i++] = page; - } - - /* Now move them within their pages */ - offset = bprm->p % PAGE_SIZE; - to = kmap(bprm->page[0]); - for (j = 1; j < i; j++) { - memmove(to, to + offset, PAGE_SIZE - offset); - from = kmap(bprm->page[j]); - memcpy(to + PAGE_SIZE - offset, from, offset); - kunmap(bprm->page[j - 1]); - to = from; - } - memmove(to, to + offset, PAGE_SIZE - offset); - kunmap(bprm->page[j - 1]); - /* Limit stack size to 1GB */ stack_base = current->signal->rlim[RLIMIT_STACK].rlim_max; if (stack_base > (1 << 30)) stack_base = 1 << 30; - stack_base = PAGE_ALIGN(stack_top - stack_base); - /* Adjust bprm->p to point to the end of the strings. */ - bprm->p = stack_base + PAGE_SIZE * i - offset; + /* Make sure we didn't let the argument array grow too large. */ + if (vma->vm_end - vma->vm_start > stack_base) + return -ENOMEM; - mm->arg_start = stack_base; - arg_size = i << PAGE_SHIFT; + stack_base = PAGE_ALIGN(stack_top - stack_base); - /* zero pages that were copied above */ - while (i < MAX_ARG_PAGES) - bprm->page[i++] = NULL; + stack_shift = vma->vm_start - stack_base; + mm->arg_start = bprm->p - stack_shift; + bprm->p = vma->vm_end - stack_shift; #else - stack_base = arch_align_stack(stack_top - MAX_ARG_PAGES*PAGE_SIZE); - stack_base = PAGE_ALIGN(stack_base); - bprm->p += stack_base; + stack_top = arch_align_stack(stack_top); + stack_top = PAGE_ALIGN(stack_top); + stack_shift = vma->vm_end - stack_top; + + bprm->p -= stack_shift; mm->arg_start = bprm->p; - arg_size = stack_top - (PAGE_MASK & (unsigned long) mm->arg_start); #endif - arg_size += EXTRA_STACK_VM_PAGES * PAGE_SIZE; - if (bprm->loader) - bprm->loader += stack_base; - bprm->exec += stack_base; - - mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (!mpnt) - return -ENOMEM; + bprm->loader -= stack_shift; + bprm->exec -= stack_shift; down_write(&mm->mmap_sem); - { - mpnt->vm_mm = mm; -#ifdef CONFIG_STACK_GROWSUP - mpnt->vm_start = stack_base; - mpnt->vm_end = stack_base + arg_size; -#else - mpnt->vm_end = stack_top; - mpnt->vm_start = mpnt->vm_end - arg_size; -#endif - /* Adjust stack execute permissions; explicitly enable - * for EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X - * and leave alone (arch default) otherwise. */ - if (unlikely(executable_stack == EXSTACK_ENABLE_X)) - mpnt->vm_flags = VM_STACK_FLAGS | VM_EXEC; - else if (executable_stack == EXSTACK_DISABLE_X) - mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC; - else - mpnt->vm_flags = VM_STACK_FLAGS; - mpnt->vm_flags |= mm->def_flags; - mpnt->vm_page_prot = protection_map[mpnt->vm_flags & 0x7]; - if ((ret = insert_vm_struct(mm, mpnt))) { + vm_flags = vma->vm_flags; + + /* + * Adjust stack execute permissions; explicitly enable for + * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone + * (arch default) otherwise. + */ + if (unlikely(executable_stack == EXSTACK_ENABLE_X)) + vm_flags |= VM_EXEC; + else if (executable_stack == EXSTACK_DISABLE_X) + vm_flags &= ~VM_EXEC; + vm_flags |= mm->def_flags; + + ret = mprotect_fixup(vma, &prev, vma->vm_start, vma->vm_end, + vm_flags); + if (ret) + goto out_unlock; + BUG_ON(prev != vma); + + /* Move stack pages down in memory. */ + if (stack_shift) { + ret = shift_arg_pages(vma, stack_shift); + if (ret) { up_write(&mm->mmap_sem); - kmem_cache_free(vm_area_cachep, mpnt); return ret; } - mm->stack_vm = mm->total_vm = vma_pages(mpnt); } - for (i = 0 ; i < MAX_ARG_PAGES ; i++) { - struct page *page = bprm->page[i]; - if (page) { - bprm->page[i] = NULL; - install_arg_page(mpnt, page, stack_base); - } - stack_base += PAGE_SIZE; - } +#ifdef CONFIG_STACK_GROWSUP + stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE; +#else + stack_base = vma->vm_start - EXTRA_STACK_VM_PAGES * PAGE_SIZE; +#endif + ret = expand_stack(vma, stack_base); + if (ret) + ret = -EFAULT; + +out_unlock: up_write(&mm->mmap_sem); - return 0; } - EXPORT_SYMBOL(setup_arg_pages); -#define free_arg_pages(bprm) do { } while (0) - -#else - -static inline void free_arg_pages(struct linux_binprm *bprm) -{ - int i; - - for (i = 0; i < MAX_ARG_PAGES; i++) { - if (bprm->page[i]) - __free_page(bprm->page[i]); - bprm->page[i] = NULL; - } -} - #endif /* CONFIG_MMU */ struct file *open_exec(const char *name) @@ -864,9 +1058,9 @@ int flush_old_exec(struct linux_binprm * bprm) current->sas_ss_sp = current->sas_ss_size = 0; if (current->euid == current->uid && current->egid == current->gid) - current->mm->dumpable = 1; + set_dumpable(current->mm, 1); else - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); name = bprm->filename; @@ -894,7 +1088,7 @@ int flush_old_exec(struct linux_binprm * bprm) file_permission(bprm->file, MAY_READ) || (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)) { suid_keys(current); - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); } /* An exec changes our domain. We are no longer part of the thread @@ -1000,43 +1194,42 @@ EXPORT_SYMBOL(compute_creds); * points to; chop off the first by relocating brpm->p to right after * the first '\0' encountered. */ -void remove_arg_zero(struct linux_binprm *bprm) +int remove_arg_zero(struct linux_binprm *bprm) { - if (bprm->argc) { - char ch; + int ret = 0; + unsigned long offset; + char *kaddr; + struct page *page; - do { - unsigned long offset; - unsigned long index; - char *kaddr; - struct page *page; - - offset = bprm->p & ~PAGE_MASK; - index = bprm->p >> PAGE_SHIFT; + if (!bprm->argc) + return 0; - page = bprm->page[index]; - kaddr = kmap_atomic(page, KM_USER0); + do { + offset = bprm->p & ~PAGE_MASK; + page = get_arg_page(bprm, bprm->p, 0); + if (!page) { + ret = -EFAULT; + goto out; + } + kaddr = kmap_atomic(page, KM_USER0); - /* run through page until we reach end or find NUL */ - do { - ch = *(kaddr + offset); + for (; offset < PAGE_SIZE && kaddr[offset]; + offset++, bprm->p++) + ; - /* discard that character... */ - bprm->p++; - offset++; - } while (offset < PAGE_SIZE && ch != '\0'); + kunmap_atomic(kaddr, KM_USER0); + put_arg_page(page); - kunmap_atomic(kaddr, KM_USER0); + if (offset == PAGE_SIZE) + free_arg_page(bprm, (bprm->p >> PAGE_SHIFT) - 1); + } while (offset == PAGE_SIZE); - /* free the old page */ - if (offset == PAGE_SIZE) { - __free_page(page); - bprm->page[index] = NULL; - } - } while (ch != '\0'); + bprm->p++; + bprm->argc--; + ret = 0; - bprm->argc--; - } +out: + return ret; } EXPORT_SYMBOL(remove_arg_zero); @@ -1062,7 +1255,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) fput(bprm->file); bprm->file = NULL; - loader = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *); + loader = bprm->vma->vm_end - sizeof(void *); file = open_exec("/sbin/loader"); retval = PTR_ERR(file); @@ -1154,8 +1347,8 @@ int do_execve(char * filename, { struct linux_binprm *bprm; struct file *file; + unsigned long env_p; int retval; - int i; retval = -ENOMEM; bprm = kzalloc(sizeof(*bprm), GFP_KERNEL); @@ -1169,25 +1362,19 @@ int do_execve(char * filename, sched_exec(); - bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *); - bprm->file = file; bprm->filename = filename; bprm->interp = filename; - bprm->mm = mm_alloc(); - retval = -ENOMEM; - if (!bprm->mm) - goto out_file; - retval = init_new_context(current, bprm->mm); - if (retval < 0) - goto out_mm; + retval = bprm_mm_init(bprm); + if (retval) + goto out_file; - bprm->argc = count(argv, bprm->p / sizeof(void *)); + bprm->argc = count(argv, MAX_ARG_STRINGS); if ((retval = bprm->argc) < 0) goto out_mm; - bprm->envc = count(envp, bprm->p / sizeof(void *)); + bprm->envc = count(envp, MAX_ARG_STRINGS); if ((retval = bprm->envc) < 0) goto out_mm; @@ -1208,15 +1395,16 @@ int do_execve(char * filename, if (retval < 0) goto out; + env_p = bprm->p; retval = copy_strings(bprm->argc, argv, bprm); if (retval < 0) goto out; + bprm->argv_len = env_p - bprm->p; retval = search_binary_handler(bprm,regs); if (retval >= 0) { - free_arg_pages(bprm); - /* execve success */ + free_arg_pages(bprm); security_bprm_free(bprm); acct_update_integrals(current); kfree(bprm); @@ -1224,26 +1412,19 @@ int do_execve(char * filename, } out: - /* Something went wrong, return the inode and free the argument pages*/ - for (i = 0 ; i < MAX_ARG_PAGES ; i++) { - struct page * page = bprm->page[i]; - if (page) - __free_page(page); - } - + free_arg_pages(bprm); if (bprm->security) security_bprm_free(bprm); out_mm: if (bprm->mm) - mmdrop(bprm->mm); + mmput (bprm->mm); out_file: if (bprm->file) { allow_write_access(bprm->file); fput(bprm->file); } - out_kfree: kfree(bprm); @@ -1484,6 +1665,56 @@ fail: return core_waiters; } +/* + * set_dumpable converts traditional three-value dumpable to two flags and + * stores them into mm->flags. It modifies lower two bits of mm->flags, but + * these bits are not changed atomically. So get_dumpable can observe the + * intermediate state. To avoid doing unexpected behavior, get get_dumpable + * return either old dumpable or new one by paying attention to the order of + * modifying the bits. + * + * dumpable | mm->flags (binary) + * old new | initial interim final + * ---------+----------------------- + * 0 1 | 00 01 01 + * 0 2 | 00 10(*) 11 + * 1 0 | 01 00 00 + * 1 2 | 01 11 11 + * 2 0 | 11 10(*) 00 + * 2 1 | 11 11 01 + * + * (*) get_dumpable regards interim value of 10 as 11. + */ +void set_dumpable(struct mm_struct *mm, int value) +{ + switch (value) { + case 0: + clear_bit(MMF_DUMPABLE, &mm->flags); + smp_wmb(); + clear_bit(MMF_DUMP_SECURELY, &mm->flags); + break; + case 1: + set_bit(MMF_DUMPABLE, &mm->flags); + smp_wmb(); + clear_bit(MMF_DUMP_SECURELY, &mm->flags); + break; + case 2: + set_bit(MMF_DUMP_SECURELY, &mm->flags); + smp_wmb(); + set_bit(MMF_DUMPABLE, &mm->flags); + break; + } +} +EXPORT_SYMBOL_GPL(set_dumpable); + +int get_dumpable(struct mm_struct *mm) +{ + int ret; + + ret = mm->flags & 0x3; + return (ret >= 2) ? 2 : ret; +} + int do_coredump(long signr, int exit_code, struct pt_regs * regs) { char corename[CORENAME_MAX_SIZE + 1]; @@ -1502,7 +1733,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs) if (!binfmt || !binfmt->core_dump) goto fail; down_write(&mm->mmap_sem); - if (!mm->dumpable) { + if (!get_dumpable(mm)) { up_write(&mm->mmap_sem); goto fail; } @@ -1512,11 +1743,11 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs) * process nor do we know its entire history. We only know it * was tainted so we dump it as root in mode 2. */ - if (mm->dumpable == 2) { /* Setuid core dump mode */ + if (get_dumpable(mm) == 2) { /* Setuid core dump mode */ flag = O_EXCL; /* Stop rewrite attacks */ current->fsuid = 0; /* Dump root private */ } - mm->dumpable = 0; + set_dumpable(mm, 0); retval = coredump_wait(exit_code); if (retval < 0) diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c index e98f6cd7200c..8adb32a9387a 100644 --- a/fs/exportfs/expfs.c +++ b/fs/exportfs/expfs.c @@ -1,15 +1,45 @@ +#include <linux/exportfs.h> #include <linux/fs.h> #include <linux/file.h> #include <linux/module.h> +#include <linux/mount.h> #include <linux/namei.h> -struct export_operations export_op_default; +#define dprintk(fmt, args...) do{}while(0) -#define CALL(ops,fun) ((ops->fun)?(ops->fun):export_op_default.fun) -#define dprintk(fmt, args...) do{}while(0) +static int get_name(struct dentry *dentry, char *name, + struct dentry *child); + + +static struct dentry *exportfs_get_dentry(struct super_block *sb, void *obj) +{ + struct dentry *result = ERR_PTR(-ESTALE); + + if (sb->s_export_op->get_dentry) { + result = sb->s_export_op->get_dentry(sb, obj); + if (!result) + result = ERR_PTR(-ESTALE); + } + + return result; +} + +static int exportfs_get_name(struct dentry *dir, char *name, + struct dentry *child) +{ + struct export_operations *nop = dir->d_sb->s_export_op; + if (nop->get_name) + return nop->get_name(dir, name, child); + else + return get_name(dir, name, child); +} + +/* + * Check if the dentry or any of it's aliases is acceptable. + */ static struct dentry * find_acceptable_alias(struct dentry *result, int (*acceptable)(void *context, struct dentry *dentry), @@ -17,6 +47,9 @@ find_acceptable_alias(struct dentry *result, { struct dentry *dentry, *toput = NULL; + if (acceptable(context, result)) + return result; + spin_lock(&dcache_lock); list_for_each_entry(dentry, &result->d_inode->i_dentry, d_alias) { dget_locked(dentry); @@ -37,130 +70,50 @@ find_acceptable_alias(struct dentry *result, return NULL; } -/** - * find_exported_dentry - helper routine to implement export_operations->decode_fh - * @sb: The &super_block identifying the filesystem - * @obj: An opaque identifier of the object to be found - passed to - * get_inode - * @parent: An optional opqaue identifier of the parent of the object. - * @acceptable: A function used to test possible &dentries to see if they are - * acceptable - * @context: A parameter to @acceptable so that it knows on what basis to - * judge. - * - * find_exported_dentry is the central helper routine to enable file systems - * to provide the decode_fh() export_operation. It's main task is to take - * an &inode, find or create an appropriate &dentry structure, and possibly - * splice this into the dcache in the correct place. - * - * The decode_fh() operation provided by the filesystem should call - * find_exported_dentry() with the same parameters that it received except - * that instead of the file handle fragment, pointers to opaque identifiers - * for the object and optionally its parent are passed. The default decode_fh - * routine passes one pointer to the start of the filehandle fragment, and - * one 8 bytes into the fragment. It is expected that most filesystems will - * take this approach, though the offset to the parent identifier may well be - * different. - * - * find_exported_dentry() will call get_dentry to get an dentry pointer from - * the file system. If any &dentry in the d_alias list is acceptable, it will - * be returned. Otherwise find_exported_dentry() will attempt to splice a new - * &dentry into the dcache using get_name() and get_parent() to find the - * appropriate place. +/* + * Find root of a disconnected subtree and return a reference to it. */ - -struct dentry * -find_exported_dentry(struct super_block *sb, void *obj, void *parent, - int (*acceptable)(void *context, struct dentry *de), - void *context) +static struct dentry * +find_disconnected_root(struct dentry *dentry) { - struct dentry *result = NULL; - struct dentry *target_dir; - int err; - struct export_operations *nops = sb->s_export_op; - struct dentry *alias; - int noprogress; - char nbuf[NAME_MAX+1]; - - /* - * Attempt to find the inode. - */ - result = CALL(sb->s_export_op,get_dentry)(sb,obj); - err = -ESTALE; - if (result == NULL) - goto err_out; - if (IS_ERR(result)) { - err = PTR_ERR(result); - goto err_out; + dget(dentry); + spin_lock(&dentry->d_lock); + while (!IS_ROOT(dentry) && + (dentry->d_parent->d_flags & DCACHE_DISCONNECTED)) { + struct dentry *parent = dentry->d_parent; + dget(parent); + spin_unlock(&dentry->d_lock); + dput(dentry); + dentry = parent; + spin_lock(&dentry->d_lock); } - if (S_ISDIR(result->d_inode->i_mode) && - (result->d_flags & DCACHE_DISCONNECTED)) { - /* it is an unconnected directory, we must connect it */ - ; - } else { - if (acceptable(context, result)) - return result; - if (S_ISDIR(result->d_inode->i_mode)) { - err = -EACCES; - goto err_result; - } + spin_unlock(&dentry->d_lock); + return dentry; +} - alias = find_acceptable_alias(result, acceptable, context); - if (alias) - return alias; - } - - /* It's a directory, or we are required to confirm the file's - * location in the tree based on the parent information - */ - dprintk("find_exported_dentry: need to look harder for %s/%d\n",sb->s_id,*(int*)obj); - if (S_ISDIR(result->d_inode->i_mode)) - target_dir = dget(result); - else { - if (parent == NULL) - goto err_result; - target_dir = CALL(sb->s_export_op,get_dentry)(sb,parent); - if (IS_ERR(target_dir)) - err = PTR_ERR(target_dir); - if (target_dir == NULL || IS_ERR(target_dir)) - goto err_result; - } - /* - * Now we need to make sure that target_dir is properly connected. - * It may already be, as the flag isn't always updated when connection - * happens. - * So, we walk up parent links until we find a connected directory, - * or we run out of directories. Then we find the parent, find - * the name of the child in that parent, and do a lookup. - * This should connect the child into the parent - * We then repeat. - */ +/* + * Make sure target_dir is fully connected to the dentry tree. + * + * It may already be, as the flag isn't always updated when connection happens. + */ +static int +reconnect_path(struct super_block *sb, struct dentry *target_dir) +{ + char nbuf[NAME_MAX+1]; + int noprogress = 0; + int err = -ESTALE; - /* it is possible that a confused file system might not let us complete + /* + * It is possible that a confused file system might not let us complete * the path to the root. For example, if get_parent returns a directory * in which we cannot find a name for the child. While this implies a * very sick filesystem we don't want it to cause knfsd to spin. Hence * the noprogress counter. If we go through the loop 10 times (2 is * probably enough) without getting anywhere, we just give up */ - noprogress= 0; while (target_dir->d_flags & DCACHE_DISCONNECTED && noprogress++ < 10) { - struct dentry *pd = target_dir; - - dget(pd); - spin_lock(&pd->d_lock); - while (!IS_ROOT(pd) && - (pd->d_parent->d_flags&DCACHE_DISCONNECTED)) { - struct dentry *parent = pd->d_parent; - - dget(parent); - spin_unlock(&pd->d_lock); - dput(pd); - pd = parent; - spin_lock(&pd->d_lock); - } - spin_unlock(&pd->d_lock); + struct dentry *pd = find_disconnected_root(target_dir); if (!IS_ROOT(pd)) { /* must have found a connected parent - great */ @@ -175,29 +128,40 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, spin_unlock(&pd->d_lock); noprogress = 0; } else { - /* we have hit the top of a disconnected path. Try - * to find parent and connect - * note: racing with some other process renaming a - * directory isn't much of a problem here. If someone - * renames the directory, it will end up properly - * connected, which is what we want + /* + * We have hit the top of a disconnected path, try to + * find parent and connect. + * + * Racing with some other process renaming a directory + * isn't much of a problem here. If someone renames + * the directory, it will end up properly connected, + * which is what we want + * + * Getting the parent can't be supported generically, + * the locking is too icky. + * + * Instead we just return EACCES. If server reboots + * or inodes get flushed, you lose */ - struct dentry *ppd; + struct dentry *ppd = ERR_PTR(-EACCES); struct dentry *npd; mutex_lock(&pd->d_inode->i_mutex); - ppd = CALL(nops,get_parent)(pd); + if (sb->s_export_op->get_parent) + ppd = sb->s_export_op->get_parent(pd); mutex_unlock(&pd->d_inode->i_mutex); if (IS_ERR(ppd)) { err = PTR_ERR(ppd); - dprintk("find_exported_dentry: get_parent of %ld failed, err %d\n", - pd->d_inode->i_ino, err); + dprintk("%s: get_parent of %ld failed, err %d\n", + __FUNCTION__, pd->d_inode->i_ino, err); dput(pd); break; } - dprintk("find_exported_dentry: find name of %lu in %lu\n", pd->d_inode->i_ino, ppd->d_inode->i_ino); - err = CALL(nops,get_name)(ppd, nbuf, pd); + + dprintk("%s: find name of %lu in %lu\n", __FUNCTION__, + pd->d_inode->i_ino, ppd->d_inode->i_ino); + err = exportfs_get_name(ppd, nbuf, pd); if (err) { dput(ppd); dput(pd); @@ -208,13 +172,14 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, continue; break; } - dprintk("find_exported_dentry: found name: %s\n", nbuf); + dprintk("%s: found name: %s\n", __FUNCTION__, nbuf); mutex_lock(&ppd->d_inode->i_mutex); npd = lookup_one_len(nbuf, ppd, strlen(nbuf)); mutex_unlock(&ppd->d_inode->i_mutex); if (IS_ERR(npd)) { err = PTR_ERR(npd); - dprintk("find_exported_dentry: lookup failed: %d\n", err); + dprintk("%s: lookup failed: %d\n", + __FUNCTION__, err); dput(ppd); dput(pd); break; @@ -227,7 +192,7 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, if (npd == pd) noprogress = 0; else - printk("find_exported_dentry: npd != pd\n"); + printk("%s: npd != pd\n", __FUNCTION__); dput(npd); dput(ppd); if (IS_ROOT(pd)) { @@ -243,15 +208,101 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, /* something went wrong - oh-well */ if (!err) err = -ESTALE; - goto err_target; + return err; } - /* if we weren't after a directory, have one more step to go */ - if (result != target_dir) { - struct dentry *nresult; - err = CALL(nops,get_name)(target_dir, nbuf, result); + + return 0; +} + +/** + * find_exported_dentry - helper routine to implement export_operations->decode_fh + * @sb: The &super_block identifying the filesystem + * @obj: An opaque identifier of the object to be found - passed to + * get_inode + * @parent: An optional opqaue identifier of the parent of the object. + * @acceptable: A function used to test possible &dentries to see if they are + * acceptable + * @context: A parameter to @acceptable so that it knows on what basis to + * judge. + * + * find_exported_dentry is the central helper routine to enable file systems + * to provide the decode_fh() export_operation. It's main task is to take + * an &inode, find or create an appropriate &dentry structure, and possibly + * splice this into the dcache in the correct place. + * + * The decode_fh() operation provided by the filesystem should call + * find_exported_dentry() with the same parameters that it received except + * that instead of the file handle fragment, pointers to opaque identifiers + * for the object and optionally its parent are passed. The default decode_fh + * routine passes one pointer to the start of the filehandle fragment, and + * one 8 bytes into the fragment. It is expected that most filesystems will + * take this approach, though the offset to the parent identifier may well be + * different. + * + * find_exported_dentry() will call get_dentry to get an dentry pointer from + * the file system. If any &dentry in the d_alias list is acceptable, it will + * be returned. Otherwise find_exported_dentry() will attempt to splice a new + * &dentry into the dcache using get_name() and get_parent() to find the + * appropriate place. + */ + +struct dentry * +find_exported_dentry(struct super_block *sb, void *obj, void *parent, + int (*acceptable)(void *context, struct dentry *de), + void *context) +{ + struct dentry *result, *alias; + int err = -ESTALE; + + /* + * Attempt to find the inode. + */ + result = exportfs_get_dentry(sb, obj); + if (IS_ERR(result)) + return result; + + if (S_ISDIR(result->d_inode->i_mode)) { + if (!(result->d_flags & DCACHE_DISCONNECTED)) { + if (acceptable(context, result)) + return result; + err = -EACCES; + goto err_result; + } + + err = reconnect_path(sb, result); + if (err) + goto err_result; + } else { + struct dentry *target_dir, *nresult; + char nbuf[NAME_MAX+1]; + + alias = find_acceptable_alias(result, acceptable, context); + if (alias) + return alias; + + if (parent == NULL) + goto err_result; + + target_dir = exportfs_get_dentry(sb,parent); + if (IS_ERR(target_dir)) { + err = PTR_ERR(target_dir); + goto err_result; + } + + err = reconnect_path(sb, target_dir); + if (err) { + dput(target_dir); + goto err_result; + } + + /* + * As we weren't after a directory, have one more step to go. + */ + err = exportfs_get_name(target_dir, nbuf, result); if (!err) { mutex_lock(&target_dir->d_inode->i_mutex); - nresult = lookup_one_len(nbuf, target_dir, strlen(nbuf)); + nresult = lookup_one_len(nbuf, target_dir, + strlen(nbuf)); mutex_unlock(&target_dir->d_inode->i_mutex); if (!IS_ERR(nresult)) { if (nresult->d_inode) { @@ -261,11 +312,8 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, dput(nresult); } } + dput(target_dir); } - dput(target_dir); - /* now result is properly connected, it is our best bet */ - if (acceptable(context, result)) - return result; alias = find_acceptable_alias(result, acceptable, context); if (alias) @@ -275,32 +323,16 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent, dput(result); /* It might be justifiable to return ESTALE here, * but the filehandle at-least looks reasonable good - * and it just be a permission problem, so returning + * and it may just be a permission problem, so returning * -EACCESS is safer */ return ERR_PTR(-EACCES); - err_target: - dput(target_dir); err_result: dput(result); - err_out: return ERR_PTR(err); } - - -static struct dentry *get_parent(struct dentry *child) -{ - /* get_parent cannot be supported generically, the locking - * is too icky. - * instead, we just return EACCES. If server reboots or inodes - * get flushed, you lose - */ - return ERR_PTR(-EACCES); -} - - struct getdents_callback { char *name; /* name that was found. It already points to a buffer NAME_MAX+1 is size */ @@ -390,61 +422,6 @@ out: return error; } - -static struct dentry *export_iget(struct super_block *sb, unsigned long ino, __u32 generation) -{ - - /* iget isn't really right if the inode is currently unallocated!! - * This should really all be done inside each filesystem - * - * ext2fs' read_inode has been strengthed to return a bad_inode if - * the inode had been deleted. - * - * Currently we don't know the generation for parent directory, so - * a generation of 0 means "accept any" - */ - struct inode *inode; - struct dentry *result; - if (ino == 0) - return ERR_PTR(-ESTALE); - inode = iget(sb, ino); - if (inode == NULL) - return ERR_PTR(-ENOMEM); - if (is_bad_inode(inode) - || (generation && inode->i_generation != generation) - ) { - /* we didn't find the right inode.. */ - dprintk("fh_verify: Inode %lu, Bad count: %d %d or version %u %u\n", - inode->i_ino, - inode->i_nlink, atomic_read(&inode->i_count), - inode->i_generation, - generation); - - iput(inode); - return ERR_PTR(-ESTALE); - } - /* now to find a dentry. - * If possible, get a well-connected one - */ - result = d_alloc_anon(inode); - if (!result) { - iput(inode); - return ERR_PTR(-ENOMEM); - } - return result; -} - - -static struct dentry *get_object(struct super_block *sb, void *vobjp) -{ - __u32 *objp = vobjp; - unsigned long ino = objp[0]; - __u32 generation = objp[1]; - - return export_iget(sb, ino, generation); -} - - /** * export_encode_fh - default export_operations->encode_fh function * @dentry: the dentry to encode @@ -517,16 +494,40 @@ static struct dentry *export_decode_fh(struct super_block *sb, __u32 *fh, int fh acceptable, context); } -struct export_operations export_op_default = { - .decode_fh = export_decode_fh, - .encode_fh = export_encode_fh, +int exportfs_encode_fh(struct dentry *dentry, __u32 *fh, int *max_len, + int connectable) +{ + struct export_operations *nop = dentry->d_sb->s_export_op; + int error; + + if (nop->encode_fh) + error = nop->encode_fh(dentry, fh, max_len, connectable); + else + error = export_encode_fh(dentry, fh, max_len, connectable); - .get_name = get_name, - .get_parent = get_parent, - .get_dentry = get_object, -}; + return error; +} +EXPORT_SYMBOL_GPL(exportfs_encode_fh); + +struct dentry *exportfs_decode_fh(struct vfsmount *mnt, __u32 *fh, int fh_len, + int fileid_type, int (*acceptable)(void *, struct dentry *), + void *context) +{ + struct export_operations *nop = mnt->mnt_sb->s_export_op; + struct dentry *result; + + if (nop->decode_fh) { + result = nop->decode_fh(mnt->mnt_sb, fh, fh_len, fileid_type, + acceptable, context); + } else { + result = export_decode_fh(mnt->mnt_sb, fh, fh_len, fileid_type, + acceptable, context); + } + + return result; +} +EXPORT_SYMBOL_GPL(exportfs_decode_fh); -EXPORT_SYMBOL(export_op_default); EXPORT_SYMBOL(find_exported_dentry); MODULE_LICENSE("GPL"); diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c index 7c420b800c34..e58669e1b87c 100644 --- a/fs/ext2/acl.c +++ b/fs/ext2/acl.c @@ -464,7 +464,7 @@ ext2_xattr_set_acl(struct inode *inode, int type, const void *value, if (!test_opt(inode->i_sb, POSIX_ACL)) return -EOPNOTSUPP; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (value) { diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c index e85c48218239..3bcd25422ee4 100644 --- a/fs/ext2/ioctl.c +++ b/fs/ext2/ioctl.c @@ -36,7 +36,7 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EACCES; if (get_user(flags, (int __user *) arg)) @@ -74,7 +74,7 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, case EXT2_IOC_GETVERSION: return put_user(inode->i_generation, (int __user *) arg); case EXT2_IOC_SETVERSION: - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (IS_RDONLY(inode)) return -EROFS; diff --git a/fs/ext2/super.c b/fs/ext2/super.c index b2efd9083b9b..a6b1072daea7 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -25,6 +25,7 @@ #include <linux/parser.h> #include <linux/random.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <linux/smp_lock.h> #include <linux/vfs.h> #include <linux/seq_file.h> @@ -882,13 +883,11 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) goto failed_mount; } bgl_lock_init(&sbi->s_blockgroup_lock); - sbi->s_debts = kmalloc(sbi->s_groups_count * sizeof(*sbi->s_debts), - GFP_KERNEL); + sbi->s_debts = kcalloc(sbi->s_groups_count, sizeof(*sbi->s_debts), GFP_KERNEL); if (!sbi->s_debts) { printk ("EXT2-fs: not enough memory\n"); goto failed_mount_group_desc; } - memset(sbi->s_debts, 0, sbi->s_groups_count * sizeof(*sbi->s_debts)); for (i = 0; i < db_count; i++) { block = descriptor_loc(sb, logic_sb_block, i); sbi->s_group_desc[i] = sb_bread(sb, block); diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c index 1e5038d9a01b..d34e9967430a 100644 --- a/fs/ext3/acl.c +++ b/fs/ext3/acl.c @@ -489,7 +489,7 @@ ext3_xattr_set_acl(struct inode *inode, int type, const void *value, if (!test_opt(inode->i_sb, POSIX_ACL)) return -EOPNOTSUPP; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (value) { diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index 852869840f24..c00723a99f44 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c @@ -136,12 +136,14 @@ static int ext3_readdir(struct file * filp, err = ext3_get_blocks_handle(NULL, inode, blk, 1, &map_bh, 0, 0); if (err > 0) { - page_cache_readahead(sb->s_bdev->bd_inode->i_mapping, - &filp->f_ra, - filp, - map_bh.b_blocknr >> - (PAGE_CACHE_SHIFT - inode->i_blkbits), - 1); + pgoff_t index = map_bh.b_blocknr >> + (PAGE_CACHE_SHIFT - inode->i_blkbits); + if (!ra_has_index(&filp->f_ra, index)) + page_cache_sync_readahead( + sb->s_bdev->bd_inode->i_mapping, + &filp->f_ra, filp, + index, 1); + filp->f_ra.prev_index = index; bh = ext3_bread(NULL, inode, blk, 0, &err); } diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c index 965006dba6be..4a2a02c95bf9 100644 --- a/fs/ext3/ioctl.c +++ b/fs/ext3/ioctl.c @@ -41,7 +41,7 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EACCES; if (get_user(flags, (int __user *) arg)) @@ -122,7 +122,7 @@ flags_err: __u32 generation; int err; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (IS_RDONLY(inode)) return -EROFS; @@ -181,7 +181,7 @@ flags_err: if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EACCES; if (get_user(rsv_window_size, (int __user *)arg)) diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 51d1c456cdab..4f84dc86628a 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -29,6 +29,7 @@ #include <linux/parser.h> #include <linux/smp_lock.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <linux/vfs.h> #include <linux/random.h> #include <linux/mount.h> diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c index 9e882546d91a..a8bae8cd1d5d 100644 --- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -489,7 +489,7 @@ ext4_xattr_set_acl(struct inode *inode, int type, const void *value, if (!test_opt(inode->i_sb, POSIX_ACL)) return -EOPNOTSUPP; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (value) { diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index 9de54ae48dee..e53b4af52f11 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -517,7 +517,7 @@ do_more: /* * An HJ special. This is expensive... */ -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG jbd_unlock_bh_state(bitmap_bh); { struct buffer_head *debug_bh; @@ -1597,7 +1597,7 @@ allocated: performed_allocation = 1; -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG { struct buffer_head *debug_bh; diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index e8ad06e28318..3ab01c04e00c 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -135,12 +135,14 @@ static int ext4_readdir(struct file * filp, map_bh.b_state = 0; err = ext4_get_blocks_wrap(NULL, inode, blk, 1, &map_bh, 0, 0); if (err > 0) { - page_cache_readahead(sb->s_bdev->bd_inode->i_mapping, - &filp->f_ra, - filp, - map_bh.b_blocknr >> - (PAGE_CACHE_SHIFT - inode->i_blkbits), - 1); + pgoff_t index = map_bh.b_blocknr >> + (PAGE_CACHE_SHIFT - inode->i_blkbits); + if (!ra_has_index(&filp->f_ra, index)) + page_cache_sync_readahead( + sb->s_bdev->bd_inode->i_mapping, + &filp->f_ra, filp, + index, 1); + filp->f_ra.prev_index = index; bh = ext4_bread(NULL, inode, blk, 0, &err); } diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index b9ce24129070..750c46f7d893 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -39,6 +39,7 @@ #include <linux/quotaops.h> #include <linux/string.h> #include <linux/slab.h> +#include <linux/falloc.h> #include <linux/ext4_fs_extents.h> #include <asm/uaccess.h> @@ -91,36 +92,6 @@ static void ext4_idx_store_pblock(struct ext4_extent_idx *ix, ext4_fsblk_t pb) ix->ei_leaf_hi = cpu_to_le16((unsigned long) ((pb >> 31) >> 1) & 0xffff); } -static int ext4_ext_check_header(const char *function, struct inode *inode, - struct ext4_extent_header *eh) -{ - const char *error_msg = NULL; - - if (unlikely(eh->eh_magic != EXT4_EXT_MAGIC)) { - error_msg = "invalid magic"; - goto corrupted; - } - if (unlikely(eh->eh_max == 0)) { - error_msg = "invalid eh_max"; - goto corrupted; - } - if (unlikely(le16_to_cpu(eh->eh_entries) > le16_to_cpu(eh->eh_max))) { - error_msg = "invalid eh_entries"; - goto corrupted; - } - return 0; - -corrupted: - ext4_error(inode->i_sb, function, - "bad header in inode #%lu: %s - magic %x, " - "entries %u, max %u, depth %u", - inode->i_ino, error_msg, le16_to_cpu(eh->eh_magic), - le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max), - le16_to_cpu(eh->eh_depth)); - - return -EIO; -} - static handle_t *ext4_ext_journal_restart(handle_t *handle, int needed) { int err; @@ -269,6 +240,70 @@ static int ext4_ext_space_root_idx(struct inode *inode) return size; } +static int +ext4_ext_max_entries(struct inode *inode, int depth) +{ + int max; + + if (depth == ext_depth(inode)) { + if (depth == 0) + max = ext4_ext_space_root(inode); + else + max = ext4_ext_space_root_idx(inode); + } else { + if (depth == 0) + max = ext4_ext_space_block(inode); + else + max = ext4_ext_space_block_idx(inode); + } + + return max; +} + +static int __ext4_ext_check_header(const char *function, struct inode *inode, + struct ext4_extent_header *eh, + int depth) +{ + const char *error_msg; + int max = 0; + + if (unlikely(eh->eh_magic != EXT4_EXT_MAGIC)) { + error_msg = "invalid magic"; + goto corrupted; + } + if (unlikely(le16_to_cpu(eh->eh_depth) != depth)) { + error_msg = "unexpected eh_depth"; + goto corrupted; + } + if (unlikely(eh->eh_max == 0)) { + error_msg = "invalid eh_max"; + goto corrupted; + } + max = ext4_ext_max_entries(inode, depth); + if (unlikely(le16_to_cpu(eh->eh_max) > max)) { + error_msg = "too large eh_max"; + goto corrupted; + } + if (unlikely(le16_to_cpu(eh->eh_entries) > le16_to_cpu(eh->eh_max))) { + error_msg = "invalid eh_entries"; + goto corrupted; + } + return 0; + +corrupted: + ext4_error(inode->i_sb, function, + "bad header in inode #%lu: %s - magic %x, " + "entries %u, max %u(%u), depth %u(%u)", + inode->i_ino, error_msg, le16_to_cpu(eh->eh_magic), + le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max), + max, le16_to_cpu(eh->eh_depth), depth); + + return -EIO; +} + +#define ext4_ext_check_header(inode, eh, depth) \ + __ext4_ext_check_header(__FUNCTION__, inode, eh, depth) + #ifdef EXT_DEBUG static void ext4_ext_show_path(struct inode *inode, struct ext4_ext_path *path) { @@ -282,7 +317,7 @@ static void ext4_ext_show_path(struct inode *inode, struct ext4_ext_path *path) } else if (path->p_ext) { ext_debug(" %d:%d:%llu ", le32_to_cpu(path->p_ext->ee_block), - le16_to_cpu(path->p_ext->ee_len), + ext4_ext_get_actual_len(path->p_ext), ext_pblock(path->p_ext)); } else ext_debug(" []"); @@ -305,7 +340,7 @@ static void ext4_ext_show_leaf(struct inode *inode, struct ext4_ext_path *path) for (i = 0; i < le16_to_cpu(eh->eh_entries); i++, ex++) { ext_debug("%d:%d:%llu ", le32_to_cpu(ex->ee_block), - le16_to_cpu(ex->ee_len), ext_pblock(ex)); + ext4_ext_get_actual_len(ex), ext_pblock(ex)); } ext_debug("\n"); } @@ -329,6 +364,7 @@ static void ext4_ext_drop_refs(struct ext4_ext_path *path) /* * ext4_ext_binsearch_idx: * binary search for the closest index of the given block + * the header must be checked before calling this */ static void ext4_ext_binsearch_idx(struct inode *inode, struct ext4_ext_path *path, int block) @@ -336,27 +372,25 @@ ext4_ext_binsearch_idx(struct inode *inode, struct ext4_ext_path *path, int bloc struct ext4_extent_header *eh = path->p_hdr; struct ext4_extent_idx *r, *l, *m; - BUG_ON(eh->eh_magic != EXT4_EXT_MAGIC); - BUG_ON(le16_to_cpu(eh->eh_entries) > le16_to_cpu(eh->eh_max)); - BUG_ON(le16_to_cpu(eh->eh_entries) <= 0); ext_debug("binsearch for %d(idx): ", block); l = EXT_FIRST_INDEX(eh) + 1; - r = EXT_FIRST_INDEX(eh) + le16_to_cpu(eh->eh_entries) - 1; + r = EXT_LAST_INDEX(eh); while (l <= r) { m = l + (r - l) / 2; if (block < le32_to_cpu(m->ei_block)) r = m - 1; else l = m + 1; - ext_debug("%p(%u):%p(%u):%p(%u) ", l, l->ei_block, - m, m->ei_block, r, r->ei_block); + ext_debug("%p(%u):%p(%u):%p(%u) ", l, le32_to_cpu(l->ei_block), + m, le32_to_cpu(m->ei_block), + r, le32_to_cpu(r->ei_block)); } path->p_idx = l - 1; ext_debug(" -> %d->%lld ", le32_to_cpu(path->p_idx->ei_block), - idx_block(path->p_idx)); + idx_pblock(path->p_idx)); #ifdef CHECK_BINSEARCH { @@ -388,6 +422,7 @@ ext4_ext_binsearch_idx(struct inode *inode, struct ext4_ext_path *path, int bloc /* * ext4_ext_binsearch: * binary search for closest extent of the given block + * the header must be checked before calling this */ static void ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block) @@ -395,9 +430,6 @@ ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block) struct ext4_extent_header *eh = path->p_hdr; struct ext4_extent *r, *l, *m; - BUG_ON(eh->eh_magic != EXT4_EXT_MAGIC); - BUG_ON(le16_to_cpu(eh->eh_entries) > le16_to_cpu(eh->eh_max)); - if (eh->eh_entries == 0) { /* * this leaf is empty: @@ -409,7 +441,7 @@ ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block) ext_debug("binsearch for %d: ", block); l = EXT_FIRST_EXTENT(eh) + 1; - r = EXT_FIRST_EXTENT(eh) + le16_to_cpu(eh->eh_entries) - 1; + r = EXT_LAST_EXTENT(eh); while (l <= r) { m = l + (r - l) / 2; @@ -417,15 +449,16 @@ ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block) r = m - 1; else l = m + 1; - ext_debug("%p(%u):%p(%u):%p(%u) ", l, l->ee_block, - m, m->ee_block, r, r->ee_block); + ext_debug("%p(%u):%p(%u):%p(%u) ", l, le32_to_cpu(l->ee_block), + m, le32_to_cpu(m->ee_block), + r, le32_to_cpu(r->ee_block)); } path->p_ext = l - 1; ext_debug(" -> %d:%llu:%d ", le32_to_cpu(path->p_ext->ee_block), ext_pblock(path->p_ext), - le16_to_cpu(path->p_ext->ee_len)); + ext4_ext_get_actual_len(path->p_ext)); #ifdef CHECK_BINSEARCH { @@ -468,11 +501,10 @@ ext4_ext_find_extent(struct inode *inode, int block, struct ext4_ext_path *path) short int depth, i, ppos = 0, alloc = 0; eh = ext_inode_hdr(inode); - BUG_ON(eh == NULL); - if (ext4_ext_check_header(__FUNCTION__, inode, eh)) + depth = ext_depth(inode); + if (ext4_ext_check_header(inode, eh, depth)) return ERR_PTR(-EIO); - i = depth = ext_depth(inode); /* account possible depth increase */ if (!path) { @@ -484,10 +516,12 @@ ext4_ext_find_extent(struct inode *inode, int block, struct ext4_ext_path *path) } path[0].p_hdr = eh; + i = depth; /* walk through the tree */ while (i) { ext_debug("depth %d: num %d, max %d\n", ppos, le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max)); + ext4_ext_binsearch_idx(inode, path + ppos, block); path[ppos].p_block = idx_pblock(path[ppos].p_idx); path[ppos].p_depth = i; @@ -504,7 +538,7 @@ ext4_ext_find_extent(struct inode *inode, int block, struct ext4_ext_path *path) path[ppos].p_hdr = eh; i--; - if (ext4_ext_check_header(__FUNCTION__, inode, eh)) + if (ext4_ext_check_header(inode, eh, i)) goto err; } @@ -513,9 +547,6 @@ ext4_ext_find_extent(struct inode *inode, int block, struct ext4_ext_path *path) path[ppos].p_ext = NULL; path[ppos].p_idx = NULL; - if (ext4_ext_check_header(__FUNCTION__, inode, eh)) - goto err; - /* find extent */ ext4_ext_binsearch(inode, path + ppos, block); @@ -553,7 +584,7 @@ static int ext4_ext_insert_index(handle_t *handle, struct inode *inode, if (curp->p_idx != EXT_LAST_INDEX(curp->p_hdr)) { len = (len - 1) * sizeof(struct ext4_extent_idx); len = len < 0 ? 0 : len; - ext_debug("insert new index %d after: %d. " + ext_debug("insert new index %d after: %llu. " "move %d from 0x%p to 0x%p\n", logical, ptr, len, (curp->p_idx + 1), (curp->p_idx + 2)); @@ -564,7 +595,7 @@ static int ext4_ext_insert_index(handle_t *handle, struct inode *inode, /* insert before */ len = len * sizeof(struct ext4_extent_idx); len = len < 0 ? 0 : len; - ext_debug("insert new index %d before: %d. " + ext_debug("insert new index %d before: %llu. " "move %d from 0x%p to 0x%p\n", logical, ptr, len, curp->p_idx, (curp->p_idx + 1)); @@ -686,7 +717,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, ext_debug("move %d:%llu:%d in new leaf %llu\n", le32_to_cpu(path[depth].p_ext->ee_block), ext_pblock(path[depth].p_ext), - le16_to_cpu(path[depth].p_ext->ee_len), + ext4_ext_get_actual_len(path[depth].p_ext), newblock); /*memmove(ex++, path[depth].p_ext++, sizeof(struct ext4_extent)); @@ -764,7 +795,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, BUG_ON(EXT_MAX_INDEX(path[i].p_hdr) != EXT_LAST_INDEX(path[i].p_hdr)); while (path[i].p_idx <= EXT_MAX_INDEX(path[i].p_hdr)) { - ext_debug("%d: move %d:%d in new index %llu\n", i, + ext_debug("%d: move %d:%llu in new index %llu\n", i, le32_to_cpu(path[i].p_idx->ei_block), idx_pblock(path[i].p_idx), newblock); @@ -893,8 +924,13 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode, curp->p_hdr->eh_max = cpu_to_le16(ext4_ext_space_root_idx(inode)); curp->p_hdr->eh_entries = cpu_to_le16(1); curp->p_idx = EXT_FIRST_INDEX(curp->p_hdr); - /* FIXME: it works, but actually path[0] can be index */ - curp->p_idx->ei_block = EXT_FIRST_EXTENT(path[0].p_hdr)->ee_block; + + if (path[0].p_hdr->eh_depth) + curp->p_idx->ei_block = + EXT_FIRST_INDEX(path[0].p_hdr)->ei_block; + else + curp->p_idx->ei_block = + EXT_FIRST_EXTENT(path[0].p_hdr)->ee_block; ext4_idx_store_pblock(curp->p_idx, newblock); neh = ext_inode_hdr(inode); @@ -1106,7 +1142,24 @@ static int ext4_can_extents_be_merged(struct inode *inode, struct ext4_extent *ex1, struct ext4_extent *ex2) { - if (le32_to_cpu(ex1->ee_block) + le16_to_cpu(ex1->ee_len) != + unsigned short ext1_ee_len, ext2_ee_len, max_len; + + /* + * Make sure that either both extents are uninitialized, or + * both are _not_. + */ + if (ext4_ext_is_uninitialized(ex1) ^ ext4_ext_is_uninitialized(ex2)) + return 0; + + if (ext4_ext_is_uninitialized(ex1)) + max_len = EXT_UNINIT_MAX_LEN; + else + max_len = EXT_INIT_MAX_LEN; + + ext1_ee_len = ext4_ext_get_actual_len(ex1); + ext2_ee_len = ext4_ext_get_actual_len(ex2); + + if (le32_to_cpu(ex1->ee_block) + ext1_ee_len != le32_to_cpu(ex2->ee_block)) return 0; @@ -1115,19 +1168,66 @@ ext4_can_extents_be_merged(struct inode *inode, struct ext4_extent *ex1, * as an RO_COMPAT feature, refuse to merge to extents if * this can result in the top bit of ee_len being set. */ - if (le16_to_cpu(ex1->ee_len) + le16_to_cpu(ex2->ee_len) > EXT_MAX_LEN) + if (ext1_ee_len + ext2_ee_len > max_len) return 0; #ifdef AGGRESSIVE_TEST if (le16_to_cpu(ex1->ee_len) >= 4) return 0; #endif - if (ext_pblock(ex1) + le16_to_cpu(ex1->ee_len) == ext_pblock(ex2)) + if (ext_pblock(ex1) + ext1_ee_len == ext_pblock(ex2)) return 1; return 0; } /* + * This function tries to merge the "ex" extent to the next extent in the tree. + * It always tries to merge towards right. If you want to merge towards + * left, pass "ex - 1" as argument instead of "ex". + * Returns 0 if the extents (ex and ex+1) were _not_ merged and returns + * 1 if they got merged. + */ +int ext4_ext_try_to_merge(struct inode *inode, + struct ext4_ext_path *path, + struct ext4_extent *ex) +{ + struct ext4_extent_header *eh; + unsigned int depth, len; + int merge_done = 0; + int uninitialized = 0; + + depth = ext_depth(inode); + BUG_ON(path[depth].p_hdr == NULL); + eh = path[depth].p_hdr; + + while (ex < EXT_LAST_EXTENT(eh)) { + if (!ext4_can_extents_be_merged(inode, ex, ex + 1)) + break; + /* merge with next extent! */ + if (ext4_ext_is_uninitialized(ex)) + uninitialized = 1; + ex->ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex) + + ext4_ext_get_actual_len(ex + 1)); + if (uninitialized) + ext4_ext_mark_uninitialized(ex); + + if (ex + 1 < EXT_LAST_EXTENT(eh)) { + len = (EXT_LAST_EXTENT(eh) - ex - 1) + * sizeof(struct ext4_extent); + memmove(ex + 1, ex + 2, len); + } + eh->eh_entries = cpu_to_le16(le16_to_cpu(eh->eh_entries) - 1); + merge_done = 1; + WARN_ON(eh->eh_entries == 0); + if (!eh->eh_entries) + ext4_error(inode->i_sb, "ext4_ext_try_to_merge", + "inode#%lu, eh->eh_entries = 0!", inode->i_ino); + } + + return merge_done; +} + +/* * check if a portion of the "newext" extent overlaps with an * existing extent. * @@ -1144,7 +1244,7 @@ unsigned int ext4_ext_check_overlap(struct inode *inode, unsigned int ret = 0; b1 = le32_to_cpu(newext->ee_block); - len1 = le16_to_cpu(newext->ee_len); + len1 = ext4_ext_get_actual_len(newext); depth = ext_depth(inode); if (!path[depth].p_ext) goto out; @@ -1191,8 +1291,9 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode, struct ext4_extent *nearex; /* nearest extent */ struct ext4_ext_path *npath = NULL; int depth, len, err, next; + unsigned uninitialized = 0; - BUG_ON(newext->ee_len == 0); + BUG_ON(ext4_ext_get_actual_len(newext) == 0); depth = ext_depth(inode); ex = path[depth].p_ext; BUG_ON(path[depth].p_hdr == NULL); @@ -1200,14 +1301,24 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode, /* try to insert block into found extent and return */ if (ex && ext4_can_extents_be_merged(inode, ex, newext)) { ext_debug("append %d block to %d:%d (from %llu)\n", - le16_to_cpu(newext->ee_len), + ext4_ext_get_actual_len(newext), le32_to_cpu(ex->ee_block), - le16_to_cpu(ex->ee_len), ext_pblock(ex)); + ext4_ext_get_actual_len(ex), ext_pblock(ex)); err = ext4_ext_get_access(handle, inode, path + depth); if (err) return err; - ex->ee_len = cpu_to_le16(le16_to_cpu(ex->ee_len) - + le16_to_cpu(newext->ee_len)); + + /* + * ext4_can_extents_be_merged should have checked that either + * both extents are uninitialized, or both aren't. Thus we + * need to check only one of them here. + */ + if (ext4_ext_is_uninitialized(ex)) + uninitialized = 1; + ex->ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex) + + ext4_ext_get_actual_len(newext)); + if (uninitialized) + ext4_ext_mark_uninitialized(ex); eh = path[depth].p_hdr; nearex = ex; goto merge; @@ -1263,7 +1374,7 @@ has_space: ext_debug("first extent in the leaf: %d:%llu:%d\n", le32_to_cpu(newext->ee_block), ext_pblock(newext), - le16_to_cpu(newext->ee_len)); + ext4_ext_get_actual_len(newext)); path[depth].p_ext = EXT_FIRST_EXTENT(eh); } else if (le32_to_cpu(newext->ee_block) > le32_to_cpu(nearex->ee_block)) { @@ -1276,7 +1387,7 @@ has_space: "move %d from 0x%p to 0x%p\n", le32_to_cpu(newext->ee_block), ext_pblock(newext), - le16_to_cpu(newext->ee_len), + ext4_ext_get_actual_len(newext), nearex, len, nearex + 1, nearex + 2); memmove(nearex + 2, nearex + 1, len); } @@ -1289,7 +1400,7 @@ has_space: "move %d from 0x%p to 0x%p\n", le32_to_cpu(newext->ee_block), ext_pblock(newext), - le16_to_cpu(newext->ee_len), + ext4_ext_get_actual_len(newext), nearex, len, nearex + 1, nearex + 2); memmove(nearex + 1, nearex, len); path[depth].p_ext = nearex; @@ -1304,20 +1415,7 @@ has_space: merge: /* try to merge extents to the right */ - while (nearex < EXT_LAST_EXTENT(eh)) { - if (!ext4_can_extents_be_merged(inode, nearex, nearex + 1)) - break; - /* merge with next extent! */ - nearex->ee_len = cpu_to_le16(le16_to_cpu(nearex->ee_len) - + le16_to_cpu(nearex[1].ee_len)); - if (nearex + 1 < EXT_LAST_EXTENT(eh)) { - len = (EXT_LAST_EXTENT(eh) - nearex - 1) - * sizeof(struct ext4_extent); - memmove(nearex + 1, nearex + 2, len); - } - eh->eh_entries = cpu_to_le16(le16_to_cpu(eh->eh_entries)-1); - BUG_ON(eh->eh_entries == 0); - } + ext4_ext_try_to_merge(inode, path, nearex); /* try to merge extents to the left */ @@ -1379,8 +1477,8 @@ int ext4_ext_walk_space(struct inode *inode, unsigned long block, end = le32_to_cpu(ex->ee_block); if (block + num < end) end = block + num; - } else if (block >= - le32_to_cpu(ex->ee_block) + le16_to_cpu(ex->ee_len)) { + } else if (block >= le32_to_cpu(ex->ee_block) + + ext4_ext_get_actual_len(ex)) { /* need to allocate space after found extent */ start = block; end = block + num; @@ -1392,7 +1490,8 @@ int ext4_ext_walk_space(struct inode *inode, unsigned long block, * by found extent */ start = block; - end = le32_to_cpu(ex->ee_block) + le16_to_cpu(ex->ee_len); + end = le32_to_cpu(ex->ee_block) + + ext4_ext_get_actual_len(ex); if (block + num < end) end = block + num; exists = 1; @@ -1408,7 +1507,7 @@ int ext4_ext_walk_space(struct inode *inode, unsigned long block, cbex.ec_type = EXT4_EXT_CACHE_GAP; } else { cbex.ec_block = le32_to_cpu(ex->ee_block); - cbex.ec_len = le16_to_cpu(ex->ee_len); + cbex.ec_len = ext4_ext_get_actual_len(ex); cbex.ec_start = ext_pblock(ex); cbex.ec_type = EXT4_EXT_CACHE_EXTENT; } @@ -1481,15 +1580,15 @@ ext4_ext_put_gap_in_cache(struct inode *inode, struct ext4_ext_path *path, ext_debug("cache gap(before): %lu [%lu:%lu]", (unsigned long) block, (unsigned long) le32_to_cpu(ex->ee_block), - (unsigned long) le16_to_cpu(ex->ee_len)); + (unsigned long) ext4_ext_get_actual_len(ex)); } else if (block >= le32_to_cpu(ex->ee_block) - + le16_to_cpu(ex->ee_len)) { + + ext4_ext_get_actual_len(ex)) { lblock = le32_to_cpu(ex->ee_block) - + le16_to_cpu(ex->ee_len); + + ext4_ext_get_actual_len(ex); len = ext4_ext_next_allocated_block(path); ext_debug("cache gap(after): [%lu:%lu] %lu", (unsigned long) le32_to_cpu(ex->ee_block), - (unsigned long) le16_to_cpu(ex->ee_len), + (unsigned long) ext4_ext_get_actual_len(ex), (unsigned long) block); BUG_ON(len == lblock); len = len - lblock; @@ -1619,12 +1718,12 @@ static int ext4_remove_blocks(handle_t *handle, struct inode *inode, unsigned long from, unsigned long to) { struct buffer_head *bh; + unsigned short ee_len = ext4_ext_get_actual_len(ex); int i; #ifdef EXTENTS_STATS { struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); - unsigned short ee_len = le16_to_cpu(ex->ee_len); spin_lock(&sbi->s_ext_stats_lock); sbi->s_ext_blocks += ee_len; sbi->s_ext_extents++; @@ -1638,12 +1737,12 @@ static int ext4_remove_blocks(handle_t *handle, struct inode *inode, } #endif if (from >= le32_to_cpu(ex->ee_block) - && to == le32_to_cpu(ex->ee_block) + le16_to_cpu(ex->ee_len) - 1) { + && to == le32_to_cpu(ex->ee_block) + ee_len - 1) { /* tail removal */ unsigned long num; ext4_fsblk_t start; - num = le32_to_cpu(ex->ee_block) + le16_to_cpu(ex->ee_len) - from; - start = ext_pblock(ex) + le16_to_cpu(ex->ee_len) - num; + num = le32_to_cpu(ex->ee_block) + ee_len - from; + start = ext_pblock(ex) + ee_len - num; ext_debug("free last %lu blocks starting %llu\n", num, start); for (i = 0; i < num; i++) { bh = sb_find_get_block(inode->i_sb, start + i); @@ -1651,12 +1750,12 @@ static int ext4_remove_blocks(handle_t *handle, struct inode *inode, } ext4_free_blocks(handle, inode, start, num); } else if (from == le32_to_cpu(ex->ee_block) - && to <= le32_to_cpu(ex->ee_block) + le16_to_cpu(ex->ee_len) - 1) { + && to <= le32_to_cpu(ex->ee_block) + ee_len - 1) { printk("strange request: removal %lu-%lu from %u:%u\n", - from, to, le32_to_cpu(ex->ee_block), le16_to_cpu(ex->ee_len)); + from, to, le32_to_cpu(ex->ee_block), ee_len); } else { printk("strange request: removal(2) %lu-%lu from %u:%u\n", - from, to, le32_to_cpu(ex->ee_block), le16_to_cpu(ex->ee_len)); + from, to, le32_to_cpu(ex->ee_block), ee_len); } return 0; } @@ -1671,21 +1770,23 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode, unsigned a, b, block, num; unsigned long ex_ee_block; unsigned short ex_ee_len; + unsigned uninitialized = 0; struct ext4_extent *ex; + /* the header must be checked already in ext4_ext_remove_space() */ ext_debug("truncate since %lu in leaf\n", start); if (!path[depth].p_hdr) path[depth].p_hdr = ext_block_hdr(path[depth].p_bh); eh = path[depth].p_hdr; BUG_ON(eh == NULL); - BUG_ON(le16_to_cpu(eh->eh_entries) > le16_to_cpu(eh->eh_max)); - BUG_ON(eh->eh_magic != EXT4_EXT_MAGIC); /* find where to start removing */ ex = EXT_LAST_EXTENT(eh); ex_ee_block = le32_to_cpu(ex->ee_block); - ex_ee_len = le16_to_cpu(ex->ee_len); + if (ext4_ext_is_uninitialized(ex)) + uninitialized = 1; + ex_ee_len = ext4_ext_get_actual_len(ex); while (ex >= EXT_FIRST_EXTENT(eh) && ex_ee_block + ex_ee_len > start) { @@ -1753,6 +1854,12 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode, ex->ee_block = cpu_to_le32(block); ex->ee_len = cpu_to_le16(num); + /* + * Do not mark uninitialized if all the blocks in the + * extent have been removed. + */ + if (uninitialized && num) + ext4_ext_mark_uninitialized(ex); err = ext4_ext_dirty(handle, inode, path + depth); if (err) @@ -1762,7 +1869,7 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode, ext_pblock(ex)); ex--; ex_ee_block = le32_to_cpu(ex->ee_block); - ex_ee_len = le16_to_cpu(ex->ee_len); + ex_ee_len = ext4_ext_get_actual_len(ex); } if (correct_index && eh->eh_entries) @@ -1825,7 +1932,7 @@ int ext4_ext_remove_space(struct inode *inode, unsigned long start) return -ENOMEM; } path[0].p_hdr = ext_inode_hdr(inode); - if (ext4_ext_check_header(__FUNCTION__, inode, path[0].p_hdr)) { + if (ext4_ext_check_header(inode, path[0].p_hdr, depth)) { err = -EIO; goto out; } @@ -1846,17 +1953,8 @@ int ext4_ext_remove_space(struct inode *inode, unsigned long start) if (!path[i].p_hdr) { ext_debug("initialize header\n"); path[i].p_hdr = ext_block_hdr(path[i].p_bh); - if (ext4_ext_check_header(__FUNCTION__, inode, - path[i].p_hdr)) { - err = -EIO; - goto out; - } } - BUG_ON(le16_to_cpu(path[i].p_hdr->eh_entries) - > le16_to_cpu(path[i].p_hdr->eh_max)); - BUG_ON(path[i].p_hdr->eh_magic != EXT4_EXT_MAGIC); - if (!path[i].p_idx) { /* this level hasn't been touched yet */ path[i].p_idx = EXT_LAST_INDEX(path[i].p_hdr); @@ -1873,17 +1971,27 @@ int ext4_ext_remove_space(struct inode *inode, unsigned long start) i, EXT_FIRST_INDEX(path[i].p_hdr), path[i].p_idx); if (ext4_ext_more_to_rm(path + i)) { + struct buffer_head *bh; /* go to the next level */ ext_debug("move to level %d (block %llu)\n", i + 1, idx_pblock(path[i].p_idx)); memset(path + i + 1, 0, sizeof(*path)); - path[i+1].p_bh = - sb_bread(sb, idx_pblock(path[i].p_idx)); - if (!path[i+1].p_bh) { + bh = sb_bread(sb, idx_pblock(path[i].p_idx)); + if (!bh) { /* should we reset i_size? */ err = -EIO; break; } + if (WARN_ON(i + 1 > depth)) { + err = -EIO; + break; + } + if (ext4_ext_check_header(inode, ext_block_hdr(bh), + depth - i - 1)) { + err = -EIO; + break; + } + path[i + 1].p_bh = bh; /* save actual number of indexes since this * number is changed at the next iteration */ @@ -1977,15 +2085,158 @@ void ext4_ext_release(struct super_block *sb) #endif } +/* + * This function is called by ext4_ext_get_blocks() if someone tries to write + * to an uninitialized extent. It may result in splitting the uninitialized + * extent into multiple extents (upto three - one initialized and two + * uninitialized). + * There are three possibilities: + * a> There is no split required: Entire extent should be initialized + * b> Splits in two extents: Write is happening at either end of the extent + * c> Splits in three extents: Somone is writing in middle of the extent + */ +int ext4_ext_convert_to_initialized(handle_t *handle, struct inode *inode, + struct ext4_ext_path *path, + ext4_fsblk_t iblock, + unsigned long max_blocks) +{ + struct ext4_extent *ex, newex; + struct ext4_extent *ex1 = NULL; + struct ext4_extent *ex2 = NULL; + struct ext4_extent *ex3 = NULL; + struct ext4_extent_header *eh; + unsigned int allocated, ee_block, ee_len, depth; + ext4_fsblk_t newblock; + int err = 0; + int ret = 0; + + depth = ext_depth(inode); + eh = path[depth].p_hdr; + ex = path[depth].p_ext; + ee_block = le32_to_cpu(ex->ee_block); + ee_len = ext4_ext_get_actual_len(ex); + allocated = ee_len - (iblock - ee_block); + newblock = iblock - ee_block + ext_pblock(ex); + ex2 = ex; + + /* ex1: ee_block to iblock - 1 : uninitialized */ + if (iblock > ee_block) { + ex1 = ex; + ex1->ee_len = cpu_to_le16(iblock - ee_block); + ext4_ext_mark_uninitialized(ex1); + ex2 = &newex; + } + /* + * for sanity, update the length of the ex2 extent before + * we insert ex3, if ex1 is NULL. This is to avoid temporary + * overlap of blocks. + */ + if (!ex1 && allocated > max_blocks) + ex2->ee_len = cpu_to_le16(max_blocks); + /* ex3: to ee_block + ee_len : uninitialised */ + if (allocated > max_blocks) { + unsigned int newdepth; + ex3 = &newex; + ex3->ee_block = cpu_to_le32(iblock + max_blocks); + ext4_ext_store_pblock(ex3, newblock + max_blocks); + ex3->ee_len = cpu_to_le16(allocated - max_blocks); + ext4_ext_mark_uninitialized(ex3); + err = ext4_ext_insert_extent(handle, inode, path, ex3); + if (err) + goto out; + /* + * The depth, and hence eh & ex might change + * as part of the insert above. + */ + newdepth = ext_depth(inode); + if (newdepth != depth) { + depth = newdepth; + path = ext4_ext_find_extent(inode, iblock, NULL); + if (IS_ERR(path)) { + err = PTR_ERR(path); + path = NULL; + goto out; + } + eh = path[depth].p_hdr; + ex = path[depth].p_ext; + if (ex2 != &newex) + ex2 = ex; + } + allocated = max_blocks; + } + /* + * If there was a change of depth as part of the + * insertion of ex3 above, we need to update the length + * of the ex1 extent again here + */ + if (ex1 && ex1 != ex) { + ex1 = ex; + ex1->ee_len = cpu_to_le16(iblock - ee_block); + ext4_ext_mark_uninitialized(ex1); + ex2 = &newex; + } + /* ex2: iblock to iblock + maxblocks-1 : initialised */ + ex2->ee_block = cpu_to_le32(iblock); + ex2->ee_start = cpu_to_le32(newblock); + ext4_ext_store_pblock(ex2, newblock); + ex2->ee_len = cpu_to_le16(allocated); + if (ex2 != ex) + goto insert; + err = ext4_ext_get_access(handle, inode, path + depth); + if (err) + goto out; + /* + * New (initialized) extent starts from the first block + * in the current extent. i.e., ex2 == ex + * We have to see if it can be merged with the extent + * on the left. + */ + if (ex2 > EXT_FIRST_EXTENT(eh)) { + /* + * To merge left, pass "ex2 - 1" to try_to_merge(), + * since it merges towards right _only_. + */ + ret = ext4_ext_try_to_merge(inode, path, ex2 - 1); + if (ret) { + err = ext4_ext_correct_indexes(handle, inode, path); + if (err) + goto out; + depth = ext_depth(inode); + ex2--; + } + } + /* + * Try to Merge towards right. This might be required + * only when the whole extent is being written to. + * i.e. ex2 == ex and ex3 == NULL. + */ + if (!ex3) { + ret = ext4_ext_try_to_merge(inode, path, ex2); + if (ret) { + err = ext4_ext_correct_indexes(handle, inode, path); + if (err) + goto out; + } + } + /* Mark modified extent as dirty */ + err = ext4_ext_dirty(handle, inode, path + depth); + goto out; +insert: + err = ext4_ext_insert_extent(handle, inode, path, &newex); +out: + return err ? err : allocated; +} + int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, ext4_fsblk_t iblock, unsigned long max_blocks, struct buffer_head *bh_result, int create, int extend_disksize) { struct ext4_ext_path *path = NULL; + struct ext4_extent_header *eh; struct ext4_extent newex, *ex; ext4_fsblk_t goal, newblock; - int err = 0, depth; + int err = 0, depth, ret; unsigned long allocated = 0; __clear_bit(BH_New, &bh_result->b_state); @@ -1998,8 +2249,10 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, if (goal) { if (goal == EXT4_EXT_CACHE_GAP) { if (!create) { - /* block isn't allocated yet and - * user doesn't want to allocate it */ + /* + * block isn't allocated yet and + * user doesn't want to allocate it + */ goto out2; } /* we should allocate requested block */ @@ -2033,21 +2286,19 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, * this is why assert can't be put in ext4_ext_find_extent() */ BUG_ON(path[depth].p_ext == NULL && depth != 0); + eh = path[depth].p_hdr; ex = path[depth].p_ext; if (ex) { unsigned long ee_block = le32_to_cpu(ex->ee_block); ext4_fsblk_t ee_start = ext_pblock(ex); - unsigned short ee_len = le16_to_cpu(ex->ee_len); + unsigned short ee_len; /* - * Allow future support for preallocated extents to be added - * as an RO_COMPAT feature: * Uninitialized extents are treated as holes, except that - * we avoid (fail) allocating new blocks during a write. + * we split out initialized portions during a write. */ - if (ee_len > EXT_MAX_LEN) - goto out2; + ee_len = ext4_ext_get_actual_len(ex); /* if found extent covers block, simply return it */ if (iblock >= ee_block && iblock < ee_block + ee_len) { newblock = iblock - ee_block + ee_start; @@ -2055,9 +2306,27 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, allocated = ee_len - (iblock - ee_block); ext_debug("%d fit into %lu:%d -> %llu\n", (int) iblock, ee_block, ee_len, newblock); - ext4_ext_put_in_cache(inode, ee_block, ee_len, - ee_start, EXT4_EXT_CACHE_EXTENT); - goto out; + + /* Do not put uninitialized extent in the cache */ + if (!ext4_ext_is_uninitialized(ex)) { + ext4_ext_put_in_cache(inode, ee_block, + ee_len, ee_start, + EXT4_EXT_CACHE_EXTENT); + goto out; + } + if (create == EXT4_CREATE_UNINITIALIZED_EXT) + goto out; + if (!create) + goto out2; + + ret = ext4_ext_convert_to_initialized(handle, inode, + path, iblock, + max_blocks); + if (ret <= 0) + goto out2; + else + allocated = ret; + goto outnew; } } @@ -2066,8 +2335,10 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, * we couldn't try to create block if create flag is zero */ if (!create) { - /* put just found gap into cache to speed up - * subsequent requests */ + /* + * put just found gap into cache to speed up + * subsequent requests + */ ext4_ext_put_gap_in_cache(inode, path, iblock); goto out2; } @@ -2081,6 +2352,19 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, /* allocate new block */ goal = ext4_ext_find_goal(inode, path, iblock); + /* + * See if request is beyond maximum number of blocks we can have in + * a single extent. For an initialized extent this limit is + * EXT_INIT_MAX_LEN and for an uninitialized extent this limit is + * EXT_UNINIT_MAX_LEN. + */ + if (max_blocks > EXT_INIT_MAX_LEN && + create != EXT4_CREATE_UNINITIALIZED_EXT) + max_blocks = EXT_INIT_MAX_LEN; + else if (max_blocks > EXT_UNINIT_MAX_LEN && + create == EXT4_CREATE_UNINITIALIZED_EXT) + max_blocks = EXT_UNINIT_MAX_LEN; + /* Check if we can really insert (iblock)::(iblock+max_blocks) extent */ newex.ee_block = cpu_to_le32(iblock); newex.ee_len = cpu_to_le16(max_blocks); @@ -2098,6 +2382,8 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, /* try to insert new extent into found leaf and return */ ext4_ext_store_pblock(&newex, newblock); newex.ee_len = cpu_to_le16(allocated); + if (create == EXT4_CREATE_UNINITIALIZED_EXT) /* Mark uninitialized */ + ext4_ext_mark_uninitialized(&newex); err = ext4_ext_insert_extent(handle, inode, path, &newex); if (err) { /* free data blocks we just allocated */ @@ -2111,10 +2397,13 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, /* previous routine could use block we allocated */ newblock = ext_pblock(&newex); +outnew: __set_bit(BH_New, &bh_result->b_state); - ext4_ext_put_in_cache(inode, iblock, allocated, newblock, - EXT4_EXT_CACHE_EXTENT); + /* Cache only when it is _not_ an uninitialized extent */ + if (create != EXT4_CREATE_UNINITIALIZED_EXT) + ext4_ext_put_in_cache(inode, iblock, allocated, newblock, + EXT4_EXT_CACHE_EXTENT); out: if (allocated > max_blocks) allocated = max_blocks; @@ -2178,7 +2467,8 @@ void ext4_ext_truncate(struct inode * inode, struct page *page) err = ext4_ext_remove_space(inode, last_block); /* In a multi-transaction truncate, we only make the final - * transaction synchronous. */ + * transaction synchronous. + */ if (IS_SYNC(inode)) handle->h_sync = 1; @@ -2217,3 +2507,127 @@ int ext4_ext_writepage_trans_blocks(struct inode *inode, int num) return needed; } + +/* + * preallocate space for a file. This implements ext4's fallocate inode + * operation, which gets called from sys_fallocate system call. + * For block-mapped files, posix_fallocate should fall back to the method + * of writing zeroes to the required new blocks (the same behavior which is + * expected for file systems which do not support fallocate() system call). + */ +long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len) +{ + handle_t *handle; + ext4_fsblk_t block, max_blocks; + ext4_fsblk_t nblocks = 0; + int ret = 0; + int ret2 = 0; + int retries = 0; + struct buffer_head map_bh; + unsigned int credits, blkbits = inode->i_blkbits; + + /* + * currently supporting (pre)allocate mode for extent-based + * files _only_ + */ + if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)) + return -EOPNOTSUPP; + + /* preallocation to directories is currently not supported */ + if (S_ISDIR(inode->i_mode)) + return -ENODEV; + + block = offset >> blkbits; + max_blocks = (EXT4_BLOCK_ALIGN(len + offset, blkbits) >> blkbits) + - block; + + /* + * credits to insert 1 extent into extent tree + buffers to be able to + * modify 1 super block, 1 block bitmap and 1 group descriptor. + */ + credits = EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + 3; +retry: + while (ret >= 0 && ret < max_blocks) { + block = block + ret; + max_blocks = max_blocks - ret; + handle = ext4_journal_start(inode, credits); + if (IS_ERR(handle)) { + ret = PTR_ERR(handle); + break; + } + + ret = ext4_ext_get_blocks(handle, inode, block, + max_blocks, &map_bh, + EXT4_CREATE_UNINITIALIZED_EXT, 0); + WARN_ON(!ret); + if (!ret) { + ext4_error(inode->i_sb, "ext4_fallocate", + "ext4_ext_get_blocks returned 0! inode#%lu" + ", block=%llu, max_blocks=%llu", + inode->i_ino, block, max_blocks); + ret = -EIO; + ext4_mark_inode_dirty(handle, inode); + ret2 = ext4_journal_stop(handle); + break; + } + if (ret > 0) { + /* check wrap through sign-bit/zero here */ + if ((block + ret) < 0 || (block + ret) < block) { + ret = -EIO; + ext4_mark_inode_dirty(handle, inode); + ret2 = ext4_journal_stop(handle); + break; + } + if (buffer_new(&map_bh) && ((block + ret) > + (EXT4_BLOCK_ALIGN(i_size_read(inode), blkbits) + >> blkbits))) + nblocks = nblocks + ret; + } + + /* Update ctime if new blocks get allocated */ + if (nblocks) { + struct timespec now; + + now = current_fs_time(inode->i_sb); + if (!timespec_equal(&inode->i_ctime, &now)) + inode->i_ctime = now; + } + + ext4_mark_inode_dirty(handle, inode); + ret2 = ext4_journal_stop(handle); + if (ret2) + break; + } + + if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) + goto retry; + + /* + * Time to update the file size. + * Update only when preallocation was requested beyond the file size. + */ + if (!(mode & FALLOC_FL_KEEP_SIZE) && + (offset + len) > i_size_read(inode)) { + if (ret > 0) { + /* + * if no error, we assume preallocation succeeded + * completely + */ + mutex_lock(&inode->i_mutex); + i_size_write(inode, offset + len); + EXT4_I(inode)->i_disksize = i_size_read(inode); + mutex_unlock(&inode->i_mutex); + } else if (ret < 0 && nblocks) { + /* Handle partial allocation scenario */ + loff_t newsize; + + mutex_lock(&inode->i_mutex); + newsize = (nblocks << blkbits) + i_size_read(inode); + i_size_write(inode, EXT4_BLOCK_ALIGN(newsize, blkbits)); + EXT4_I(inode)->i_disksize = i_size_read(inode); + mutex_unlock(&inode->i_mutex); + } + } + + return ret > 0 ? ret2 : ret; +} diff --git a/fs/ext4/file.c b/fs/ext4/file.c index d4c8186aed64..1a81cd66d63b 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -134,5 +134,6 @@ const struct inode_operations ext4_file_inode_operations = { .removexattr = generic_removexattr, #endif .permission = ext4_permission, + .fallocate = ext4_fallocate, }; diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index c88b439ba5cd..427f83066a0d 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -563,7 +563,8 @@ got: inode->i_ino = ino; /* This is the optimal IO size (for stat), not the fs block size */ inode->i_blocks = 0; - inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; + inode->i_mtime = inode->i_atime = inode->i_ctime = ei->i_crtime = + ext4_current_time(inode); memset(ei->i_data, 0, sizeof(ei->i_data)); ei->i_dir_start_lookup = 0; @@ -595,9 +596,8 @@ got: spin_unlock(&sbi->s_next_gen_lock); ei->i_state = EXT4_STATE_NEW; - ei->i_extra_isize = - (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) ? - sizeof(struct ext4_inode) - EXT4_GOOD_OLD_INODE_SIZE : 0; + + ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize; ret = inode; if(DQUOT_ALLOC_INODE(inode)) { diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 8416fa28c422..a4848e04a5ed 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -726,7 +726,7 @@ static int ext4_splice_branch(handle_t *handle, struct inode *inode, /* We are done with atomic stuff, now do the rest of housekeeping */ - inode->i_ctime = CURRENT_TIME_SEC; + inode->i_ctime = ext4_current_time(inode); ext4_mark_inode_dirty(handle, inode); /* had we spliced it onto indirect block? */ @@ -1766,7 +1766,6 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page, struct inode *inode = mapping->host; struct buffer_head *bh; int err = 0; - void *kaddr; blocksize = inode->i_sb->s_blocksize; length = blocksize - (offset & (blocksize - 1)); @@ -1778,10 +1777,7 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page, */ if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode) && PageUptodate(page)) { - kaddr = kmap_atomic(page, KM_USER0); - memset(kaddr + offset, 0, length); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); + zero_user_page(page, offset, length, KM_USER0); set_page_dirty(page); goto unlock; } @@ -1834,10 +1830,7 @@ int ext4_block_truncate_page(handle_t *handle, struct page *page, goto unlock; } - kaddr = kmap_atomic(page, KM_USER0); - memset(kaddr + offset, 0, length); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); + zero_user_page(page, offset, length, KM_USER0); BUFFER_TRACE(bh, "zeroed end of block"); @@ -2375,7 +2368,7 @@ do_indirects: ext4_discard_reservation(inode); mutex_unlock(&ei->truncate_mutex); - inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; + inode->i_mtime = inode->i_ctime = ext4_current_time(inode); ext4_mark_inode_dirty(handle, inode); /* @@ -2583,6 +2576,25 @@ void ext4_set_inode_flags(struct inode *inode) inode->i_flags |= S_DIRSYNC; } +/* Propagate flags from i_flags to EXT4_I(inode)->i_flags */ +void ext4_get_inode_flags(struct ext4_inode_info *ei) +{ + unsigned int flags = ei->vfs_inode.i_flags; + + ei->i_flags &= ~(EXT4_SYNC_FL|EXT4_APPEND_FL| + EXT4_IMMUTABLE_FL|EXT4_NOATIME_FL|EXT4_DIRSYNC_FL); + if (flags & S_SYNC) + ei->i_flags |= EXT4_SYNC_FL; + if (flags & S_APPEND) + ei->i_flags |= EXT4_APPEND_FL; + if (flags & S_IMMUTABLE) + ei->i_flags |= EXT4_IMMUTABLE_FL; + if (flags & S_NOATIME) + ei->i_flags |= EXT4_NOATIME_FL; + if (flags & S_DIRSYNC) + ei->i_flags |= EXT4_DIRSYNC_FL; +} + void ext4_read_inode(struct inode * inode) { struct ext4_iloc iloc; @@ -2610,10 +2622,6 @@ void ext4_read_inode(struct inode * inode) } inode->i_nlink = le16_to_cpu(raw_inode->i_links_count); inode->i_size = le32_to_cpu(raw_inode->i_size); - inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime); - inode->i_ctime.tv_sec = (signed)le32_to_cpu(raw_inode->i_ctime); - inode->i_mtime.tv_sec = (signed)le32_to_cpu(raw_inode->i_mtime); - inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec = inode->i_mtime.tv_nsec = 0; ei->i_state = 0; ei->i_dir_start_lookup = 0; @@ -2691,6 +2699,11 @@ void ext4_read_inode(struct inode * inode) } else ei->i_extra_isize = 0; + EXT4_INODE_GET_XTIME(i_ctime, inode, raw_inode); + EXT4_INODE_GET_XTIME(i_mtime, inode, raw_inode); + EXT4_INODE_GET_XTIME(i_atime, inode, raw_inode); + EXT4_EINODE_GET_XTIME(i_crtime, ei, raw_inode); + if (S_ISREG(inode->i_mode)) { inode->i_op = &ext4_file_inode_operations; inode->i_fop = &ext4_file_operations; @@ -2744,6 +2757,7 @@ static int ext4_do_update_inode(handle_t *handle, if (ei->i_state & EXT4_STATE_NEW) memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size); + ext4_get_inode_flags(ei); raw_inode->i_mode = cpu_to_le16(inode->i_mode); if(!(test_opt(inode->i_sb, NO_UID32))) { raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid)); @@ -2771,9 +2785,12 @@ static int ext4_do_update_inode(handle_t *handle, } raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); raw_inode->i_size = cpu_to_le32(ei->i_disksize); - raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec); - raw_inode->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec); - raw_inode->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec); + + EXT4_INODE_SET_XTIME(i_ctime, inode, raw_inode); + EXT4_INODE_SET_XTIME(i_mtime, inode, raw_inode); + EXT4_INODE_SET_XTIME(i_atime, inode, raw_inode); + EXT4_EINODE_SET_XTIME(i_crtime, ei, raw_inode); + raw_inode->i_blocks = cpu_to_le32(inode->i_blocks); raw_inode->i_dtime = cpu_to_le32(ei->i_dtime); raw_inode->i_flags = cpu_to_le32(ei->i_flags); @@ -2886,7 +2903,7 @@ int ext4_write_inode(struct inode *inode, int wait) return 0; if (ext4_journal_current_handle()) { - jbd_debug(0, "called recursively, non-PF_MEMALLOC!\n"); + jbd_debug(1, "called recursively, non-PF_MEMALLOC!\n"); dump_stack(); return -EIO; } @@ -3082,6 +3099,39 @@ ext4_reserve_inode_write(handle_t *handle, struct inode *inode, } /* + * Expand an inode by new_extra_isize bytes. + * Returns 0 on success or negative error number on failure. + */ +int ext4_expand_extra_isize(struct inode *inode, unsigned int new_extra_isize, + struct ext4_iloc iloc, handle_t *handle) +{ + struct ext4_inode *raw_inode; + struct ext4_xattr_ibody_header *header; + struct ext4_xattr_entry *entry; + + if (EXT4_I(inode)->i_extra_isize >= new_extra_isize) + return 0; + + raw_inode = ext4_raw_inode(&iloc); + + header = IHDR(inode, raw_inode); + entry = IFIRST(header); + + /* No extended attributes present */ + if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR) || + header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)) { + memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE, 0, + new_extra_isize); + EXT4_I(inode)->i_extra_isize = new_extra_isize; + return 0; + } + + /* try to expand with EAs present */ + return ext4_expand_extra_isize_ea(inode, new_extra_isize, + raw_inode, handle); +} + +/* * What we do here is to mark the in-core inode as clean with respect to inode * dirtiness (it may still be data-dirty). * This means that the in-core inode may be reaped by prune_icache @@ -3105,10 +3155,38 @@ ext4_reserve_inode_write(handle_t *handle, struct inode *inode, int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode) { struct ext4_iloc iloc; - int err; + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + static unsigned int mnt_count; + int err, ret; might_sleep(); err = ext4_reserve_inode_write(handle, inode, &iloc); + if (EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize && + !(EXT4_I(inode)->i_state & EXT4_STATE_NO_EXPAND)) { + /* + * We need extra buffer credits since we may write into EA block + * with this same handle. If journal_extend fails, then it will + * only result in a minor loss of functionality for that inode. + * If this is felt to be critical, then e2fsck should be run to + * force a large enough s_min_extra_isize. + */ + if ((jbd2_journal_extend(handle, + EXT4_DATA_TRANS_BLOCKS(inode->i_sb))) == 0) { + ret = ext4_expand_extra_isize(inode, + sbi->s_want_extra_isize, + iloc, handle); + if (ret) { + EXT4_I(inode)->i_state |= EXT4_STATE_NO_EXPAND; + if (mnt_count != sbi->s_es->s_mnt_count) { + ext4_warning(inode->i_sb, __FUNCTION__, + "Unable to expand inode %lu. Delete" + " some EAs or run e2fsck.", + inode->i_ino); + mnt_count = sbi->s_es->s_mnt_count; + } + } + } + } if (!err) err = ext4_mark_iloc_dirty(handle, inode, &iloc); return err; @@ -3197,7 +3275,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) */ journal = EXT4_JOURNAL(inode); - if (is_journal_aborted(journal) || IS_RDONLY(inode)) + if (is_journal_aborted(journal)) return -EROFS; jbd2_journal_lock_updates(journal); diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 500567dd53b6..c04c7ccba9e3 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -28,6 +28,7 @@ int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, switch (cmd) { case EXT4_IOC_GETFLAGS: + ext4_get_inode_flags(ei); flags = ei->i_flags & EXT4_FL_USER_VISIBLE; return put_user(flags, (int __user *) arg); case EXT4_IOC_SETFLAGS: { @@ -40,7 +41,7 @@ int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EACCES; if (get_user(flags, (int __user *) arg)) @@ -96,7 +97,7 @@ int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, ei->i_flags = flags; ext4_set_inode_flags(inode); - inode->i_ctime = CURRENT_TIME_SEC; + inode->i_ctime = ext4_current_time(inode); err = ext4_mark_iloc_dirty(handle, inode, &iloc); flags_err: @@ -121,7 +122,7 @@ flags_err: __u32 generation; int err; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (IS_RDONLY(inode)) return -EROFS; @@ -133,14 +134,14 @@ flags_err: return PTR_ERR(handle); err = ext4_reserve_inode_write(handle, inode, &iloc); if (err == 0) { - inode->i_ctime = CURRENT_TIME_SEC; + inode->i_ctime = ext4_current_time(inode); inode->i_generation = generation; err = ext4_mark_iloc_dirty(handle, inode, &iloc); } ext4_journal_stop(handle); return err; } -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG case EXT4_IOC_WAIT_FOR_READONLY: /* * This is racy - by the time we're woken up and running, @@ -180,7 +181,7 @@ flags_err: if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EACCES; if (get_user(rsv_window_size, (int __user *)arg)) @@ -282,7 +283,7 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case EXT4_IOC32_SETVERSION_OLD: cmd = EXT4_IOC_SETVERSION_OLD; break; -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG case EXT4_IOC32_WAIT_FOR_READONLY: cmd = EXT4_IOC_WAIT_FOR_READONLY; break; diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 2de339dd7554..da224974af78 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1295,7 +1295,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry, * happen is that the times are slightly out of date * and/or different from the directory change time. */ - dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC; + dir->i_mtime = dir->i_ctime = ext4_current_time(dir); ext4_update_dx_flag(dir); dir->i_version++; ext4_mark_inode_dirty(handle, dir); @@ -1629,6 +1629,35 @@ static int ext4_delete_entry (handle_t *handle, return -ENOENT; } +/* + * DIR_NLINK feature is set if 1) nlinks > EXT4_LINK_MAX or 2) nlinks == 2, + * since this indicates that nlinks count was previously 1. + */ +static void ext4_inc_count(handle_t *handle, struct inode *inode) +{ + inc_nlink(inode); + if (is_dx(inode) && inode->i_nlink > 1) { + /* limit is 16-bit i_links_count */ + if (inode->i_nlink >= EXT4_LINK_MAX || inode->i_nlink == 2) { + inode->i_nlink = 1; + EXT4_SET_RO_COMPAT_FEATURE(inode->i_sb, + EXT4_FEATURE_RO_COMPAT_DIR_NLINK); + } + } +} + +/* + * If a directory had nlink == 1, then we should let it be 1. This indicates + * directory has >EXT4_LINK_MAX subdirs. + */ +static void ext4_dec_count(handle_t *handle, struct inode *inode) +{ + drop_nlink(inode); + if (S_ISDIR(inode->i_mode) && inode->i_nlink == 0) + inc_nlink(inode); +} + + static int ext4_add_nondir(handle_t *handle, struct dentry *dentry, struct inode *inode) { @@ -1725,7 +1754,7 @@ static int ext4_mkdir(struct inode * dir, struct dentry * dentry, int mode) struct ext4_dir_entry_2 * de; int err, retries = 0; - if (dir->i_nlink >= EXT4_LINK_MAX) + if (EXT4_DIR_LINK_MAX(dir)) return -EMLINK; retry: @@ -1748,7 +1777,7 @@ retry: inode->i_size = EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize; dir_block = ext4_bread (handle, inode, 0, 1, &err); if (!dir_block) { - drop_nlink(inode); /* is this nlink == 0? */ + ext4_dec_count(handle, inode); /* is this nlink == 0? */ ext4_mark_inode_dirty(handle, inode); iput (inode); goto out_stop; @@ -1780,7 +1809,7 @@ retry: iput (inode); goto out_stop; } - inc_nlink(dir); + ext4_inc_count(handle, dir); ext4_update_dx_flag(dir); ext4_mark_inode_dirty(handle, dir); d_instantiate(dentry, inode); @@ -2045,9 +2074,9 @@ static int ext4_rmdir (struct inode * dir, struct dentry *dentry) retval = ext4_delete_entry(handle, dir, de, bh); if (retval) goto end_rmdir; - if (inode->i_nlink != 2) + if (!EXT4_DIR_LINK_EMPTY(inode)) ext4_warning (inode->i_sb, "ext4_rmdir", - "empty directory has nlink!=2 (%d)", + "empty directory has too many links (%d)", inode->i_nlink); inode->i_version++; clear_nlink(inode); @@ -2056,9 +2085,9 @@ static int ext4_rmdir (struct inode * dir, struct dentry *dentry) * recovery. */ inode->i_size = 0; ext4_orphan_add(handle, inode); - inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC; + inode->i_ctime = dir->i_ctime = dir->i_mtime = ext4_current_time(inode); ext4_mark_inode_dirty(handle, inode); - drop_nlink(dir); + ext4_dec_count(handle, dir); ext4_update_dx_flag(dir); ext4_mark_inode_dirty(handle, dir); @@ -2106,13 +2135,13 @@ static int ext4_unlink(struct inode * dir, struct dentry *dentry) retval = ext4_delete_entry(handle, dir, de, bh); if (retval) goto end_unlink; - dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC; + dir->i_ctime = dir->i_mtime = ext4_current_time(dir); ext4_update_dx_flag(dir); ext4_mark_inode_dirty(handle, dir); - drop_nlink(inode); + ext4_dec_count(handle, inode); if (!inode->i_nlink) ext4_orphan_add(handle, inode); - inode->i_ctime = dir->i_ctime; + inode->i_ctime = ext4_current_time(inode); ext4_mark_inode_dirty(handle, inode); retval = 0; @@ -2159,7 +2188,7 @@ retry: err = __page_symlink(inode, symname, l, mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS); if (err) { - drop_nlink(inode); + ext4_dec_count(handle, inode); ext4_mark_inode_dirty(handle, inode); iput (inode); goto out_stop; @@ -2185,8 +2214,9 @@ static int ext4_link (struct dentry * old_dentry, struct inode *inode = old_dentry->d_inode; int err, retries = 0; - if (inode->i_nlink >= EXT4_LINK_MAX) + if (EXT4_DIR_LINK_MAX(inode)) return -EMLINK; + /* * Return -ENOENT if we've raced with unlink and i_nlink is 0. Doing * otherwise has the potential to corrupt the orphan inode list. @@ -2203,8 +2233,8 @@ retry: if (IS_DIRSYNC(dir)) handle->h_sync = 1; - inode->i_ctime = CURRENT_TIME_SEC; - inc_nlink(inode); + inode->i_ctime = ext4_current_time(inode); + ext4_inc_count(handle, inode); atomic_inc(&inode->i_count); err = ext4_add_nondir(handle, dentry, inode); @@ -2305,7 +2335,7 @@ static int ext4_rename (struct inode * old_dir, struct dentry *old_dentry, * Like most other Unix systems, set the ctime for inodes on a * rename. */ - old_inode->i_ctime = CURRENT_TIME_SEC; + old_inode->i_ctime = ext4_current_time(old_inode); ext4_mark_inode_dirty(handle, old_inode); /* @@ -2337,10 +2367,10 @@ static int ext4_rename (struct inode * old_dir, struct dentry *old_dentry, } if (new_inode) { - drop_nlink(new_inode); - new_inode->i_ctime = CURRENT_TIME_SEC; + ext4_dec_count(handle, new_inode); + new_inode->i_ctime = ext4_current_time(new_inode); } - old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC; + old_dir->i_ctime = old_dir->i_mtime = ext4_current_time(old_dir); ext4_update_dx_flag(old_dir); if (dir_bh) { BUFFER_TRACE(dir_bh, "get_write_access"); @@ -2348,11 +2378,13 @@ static int ext4_rename (struct inode * old_dir, struct dentry *old_dentry, PARENT_INO(dir_bh->b_data) = cpu_to_le32(new_dir->i_ino); BUFFER_TRACE(dir_bh, "call ext4_journal_dirty_metadata"); ext4_journal_dirty_metadata(handle, dir_bh); - drop_nlink(old_dir); + ext4_dec_count(handle, old_dir); if (new_inode) { - drop_nlink(new_inode); + /* checked empty_dir above, can't have another parent, + * ext3_dec_count() won't work for many-linked dirs */ + new_inode->i_nlink = 0; } else { - inc_nlink(new_dir); + ext4_inc_count(handle, new_dir); ext4_update_dx_flag(new_dir); ext4_mark_inode_dirty(handle, new_dir); } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index d0d8c76c7edb..6dcbb28dc06d 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -29,12 +29,14 @@ #include <linux/parser.h> #include <linux/smp_lock.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <linux/vfs.h> #include <linux/random.h> #include <linux/mount.h> #include <linux/namei.h> #include <linux/quotaops.h> #include <linux/seq_file.h> +#include <linux/log2.h> #include <asm/uaccess.h> @@ -733,7 +735,7 @@ enum { Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota, Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota, Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota, - Opt_grpquota, Opt_extents, + Opt_grpquota, Opt_extents, Opt_noextents, }; static match_table_t tokens = { @@ -784,6 +786,7 @@ static match_table_t tokens = { {Opt_usrquota, "usrquota"}, {Opt_barrier, "barrier=%u"}, {Opt_extents, "extents"}, + {Opt_noextents, "noextents"}, {Opt_err, NULL}, {Opt_resize, "resize"}, }; @@ -1119,6 +1122,9 @@ clear_qf_name: case Opt_extents: set_opt (sbi->s_mount_opt, EXTENTS); break; + case Opt_noextents: + clear_opt (sbi->s_mount_opt, EXTENTS); + break; default: printk (KERN_ERR "EXT4-fs: Unrecognized mount option \"%s\" " @@ -1550,6 +1556,12 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) set_opt(sbi->s_mount_opt, RESERVATION); + /* + * turn on extents feature by default in ext4 filesystem + * User -o noextents to turn it off + */ + set_opt(sbi->s_mount_opt, EXTENTS); + if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum, NULL, 0)) goto failed_mount; @@ -1633,13 +1645,15 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) sbi->s_inode_size = le16_to_cpu(es->s_inode_size); sbi->s_first_ino = le32_to_cpu(es->s_first_ino); if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) || - (sbi->s_inode_size & (sbi->s_inode_size - 1)) || + (!is_power_of_2(sbi->s_inode_size)) || (sbi->s_inode_size > blocksize)) { printk (KERN_ERR "EXT4-fs: unsupported inode size: %d\n", sbi->s_inode_size); goto failed_mount; } + if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) + sb->s_time_gran = 1 << (EXT4_EPOCH_BITS - 2); } sbi->s_frag_size = EXT4_MIN_FRAG_SIZE << le32_to_cpu(es->s_log_frag_size); @@ -1802,6 +1816,13 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) goto failed_mount3; } + if (ext4_blocks_count(es) > 0xffffffffULL && + !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, + JBD2_FEATURE_INCOMPAT_64BIT)) { + printk(KERN_ERR "ext4: Failed to set 64-bit journal feature\n"); + goto failed_mount4; + } + /* We have now updated the journal if required, so we can * validate the data journaling mode. */ switch (test_opt(sb, DATA_FLAGS)) { @@ -1856,6 +1877,32 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) } ext4_setup_super (sb, es, sb->s_flags & MS_RDONLY); + + /* determine the minimum size of new large inodes, if present */ + if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) { + sbi->s_want_extra_isize = sizeof(struct ext4_inode) - + EXT4_GOOD_OLD_INODE_SIZE; + if (EXT4_HAS_RO_COMPAT_FEATURE(sb, + EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)) { + if (sbi->s_want_extra_isize < + le16_to_cpu(es->s_want_extra_isize)) + sbi->s_want_extra_isize = + le16_to_cpu(es->s_want_extra_isize); + if (sbi->s_want_extra_isize < + le16_to_cpu(es->s_min_extra_isize)) + sbi->s_want_extra_isize = + le16_to_cpu(es->s_min_extra_isize); + } + } + /* Check if enough inode space is available */ + if (EXT4_GOOD_OLD_INODE_SIZE + sbi->s_want_extra_isize > + sbi->s_inode_size) { + sbi->s_want_extra_isize = sizeof(struct ext4_inode) - + EXT4_GOOD_OLD_INODE_SIZE; + printk(KERN_INFO "EXT4-fs: required extra inode space not" + "available.\n"); + } + /* * akpm: core read_super() calls in here with the superblock locked. * That deadlocks, because orphan cleanup needs to lock the superblock diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index e832e96095b3..b10d68fffb55 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -66,13 +66,6 @@ #define BFIRST(bh) ENTRY(BHDR(bh)+1) #define IS_LAST_ENTRY(entry) (*(__u32 *)(entry) == 0) -#define IHDR(inode, raw_inode) \ - ((struct ext4_xattr_ibody_header *) \ - ((void *)raw_inode + \ - EXT4_GOOD_OLD_INODE_SIZE + \ - EXT4_I(inode)->i_extra_isize)) -#define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1)) - #ifdef EXT4_XATTR_DEBUG # define ea_idebug(inode, f...) do { \ printk(KERN_DEBUG "inode %s:%lu: ", \ @@ -508,6 +501,24 @@ out: return; } +/* + * Find the available free space for EAs. This also returns the total number of + * bytes used by EA entries. + */ +static size_t ext4_xattr_free_space(struct ext4_xattr_entry *last, + size_t *min_offs, void *base, int *total) +{ + for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) { + *total += EXT4_XATTR_LEN(last->e_name_len); + if (!last->e_value_block && last->e_value_size) { + size_t offs = le16_to_cpu(last->e_value_offs); + if (offs < *min_offs) + *min_offs = offs; + } + } + return (*min_offs - ((void *)last - base) - sizeof(__u32)); +} + struct ext4_xattr_info { int name_index; const char *name; @@ -1013,7 +1024,9 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, } if (!error) { ext4_xattr_update_super_block(handle, inode->i_sb); - inode->i_ctime = CURRENT_TIME_SEC; + inode->i_ctime = ext4_current_time(inode); + if (!value) + EXT4_I(inode)->i_state &= ~EXT4_STATE_NO_EXPAND; error = ext4_mark_iloc_dirty(handle, inode, &is.iloc); /* * The bh is consumed by ext4_mark_iloc_dirty, even with @@ -1067,6 +1080,253 @@ retry: } /* + * Shift the EA entries in the inode to create space for the increased + * i_extra_isize. + */ +static void ext4_xattr_shift_entries(struct ext4_xattr_entry *entry, + int value_offs_shift, void *to, + void *from, size_t n, int blocksize) +{ + struct ext4_xattr_entry *last = entry; + int new_offs; + + /* Adjust the value offsets of the entries */ + for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) { + if (!last->e_value_block && last->e_value_size) { + new_offs = le16_to_cpu(last->e_value_offs) + + value_offs_shift; + BUG_ON(new_offs + le32_to_cpu(last->e_value_size) + > blocksize); + last->e_value_offs = cpu_to_le16(new_offs); + } + } + /* Shift the entries by n bytes */ + memmove(to, from, n); +} + +/* + * Expand an inode by new_extra_isize bytes when EAs are present. + * Returns 0 on success or negative error number on failure. + */ +int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, + struct ext4_inode *raw_inode, handle_t *handle) +{ + struct ext4_xattr_ibody_header *header; + struct ext4_xattr_entry *entry, *last, *first; + struct buffer_head *bh = NULL; + struct ext4_xattr_ibody_find *is = NULL; + struct ext4_xattr_block_find *bs = NULL; + char *buffer = NULL, *b_entry_name = NULL; + size_t min_offs, free; + int total_ino, total_blk; + void *base, *start, *end; + int extra_isize = 0, error = 0, tried_min_extra_isize = 0; + int s_min_extra_isize = EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize; + + down_write(&EXT4_I(inode)->xattr_sem); +retry: + if (EXT4_I(inode)->i_extra_isize >= new_extra_isize) { + up_write(&EXT4_I(inode)->xattr_sem); + return 0; + } + + header = IHDR(inode, raw_inode); + entry = IFIRST(header); + + /* + * Check if enough free space is available in the inode to shift the + * entries ahead by new_extra_isize. + */ + + base = start = entry; + end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size; + min_offs = end - base; + last = entry; + total_ino = sizeof(struct ext4_xattr_ibody_header); + + free = ext4_xattr_free_space(last, &min_offs, base, &total_ino); + if (free >= new_extra_isize) { + entry = IFIRST(header); + ext4_xattr_shift_entries(entry, EXT4_I(inode)->i_extra_isize + - new_extra_isize, (void *)raw_inode + + EXT4_GOOD_OLD_INODE_SIZE + new_extra_isize, + (void *)header, total_ino, + inode->i_sb->s_blocksize); + EXT4_I(inode)->i_extra_isize = new_extra_isize; + error = 0; + goto cleanup; + } + + /* + * Enough free space isn't available in the inode, check if + * EA block can hold new_extra_isize bytes. + */ + if (EXT4_I(inode)->i_file_acl) { + bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl); + error = -EIO; + if (!bh) + goto cleanup; + if (ext4_xattr_check_block(bh)) { + ext4_error(inode->i_sb, __FUNCTION__, + "inode %lu: bad block %llu", inode->i_ino, + EXT4_I(inode)->i_file_acl); + error = -EIO; + goto cleanup; + } + base = BHDR(bh); + first = BFIRST(bh); + end = bh->b_data + bh->b_size; + min_offs = end - base; + free = ext4_xattr_free_space(first, &min_offs, base, + &total_blk); + if (free < new_extra_isize) { + if (!tried_min_extra_isize && s_min_extra_isize) { + tried_min_extra_isize++; + new_extra_isize = s_min_extra_isize; + brelse(bh); + goto retry; + } + error = -1; + goto cleanup; + } + } else { + free = inode->i_sb->s_blocksize; + } + + while (new_extra_isize > 0) { + size_t offs, size, entry_size; + struct ext4_xattr_entry *small_entry = NULL; + struct ext4_xattr_info i = { + .value = NULL, + .value_len = 0, + }; + unsigned int total_size; /* EA entry size + value size */ + unsigned int shift_bytes; /* No. of bytes to shift EAs by? */ + unsigned int min_total_size = ~0U; + + is = kzalloc(sizeof(struct ext4_xattr_ibody_find), GFP_NOFS); + bs = kzalloc(sizeof(struct ext4_xattr_block_find), GFP_NOFS); + if (!is || !bs) { + error = -ENOMEM; + goto cleanup; + } + + is->s.not_found = -ENODATA; + bs->s.not_found = -ENODATA; + is->iloc.bh = NULL; + bs->bh = NULL; + + last = IFIRST(header); + /* Find the entry best suited to be pushed into EA block */ + entry = NULL; + for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) { + total_size = + EXT4_XATTR_SIZE(le32_to_cpu(last->e_value_size)) + + EXT4_XATTR_LEN(last->e_name_len); + if (total_size <= free && total_size < min_total_size) { + if (total_size < new_extra_isize) { + small_entry = last; + } else { + entry = last; + min_total_size = total_size; + } + } + } + + if (entry == NULL) { + if (small_entry) { + entry = small_entry; + } else { + if (!tried_min_extra_isize && + s_min_extra_isize) { + tried_min_extra_isize++; + new_extra_isize = s_min_extra_isize; + goto retry; + } + error = -1; + goto cleanup; + } + } + offs = le16_to_cpu(entry->e_value_offs); + size = le32_to_cpu(entry->e_value_size); + entry_size = EXT4_XATTR_LEN(entry->e_name_len); + i.name_index = entry->e_name_index, + buffer = kmalloc(EXT4_XATTR_SIZE(size), GFP_NOFS); + b_entry_name = kmalloc(entry->e_name_len + 1, GFP_NOFS); + if (!buffer || !b_entry_name) { + error = -ENOMEM; + goto cleanup; + } + /* Save the entry name and the entry value */ + memcpy(buffer, (void *)IFIRST(header) + offs, + EXT4_XATTR_SIZE(size)); + memcpy(b_entry_name, entry->e_name, entry->e_name_len); + b_entry_name[entry->e_name_len] = '\0'; + i.name = b_entry_name; + + error = ext4_get_inode_loc(inode, &is->iloc); + if (error) + goto cleanup; + + error = ext4_xattr_ibody_find(inode, &i, is); + if (error) + goto cleanup; + + /* Remove the chosen entry from the inode */ + error = ext4_xattr_ibody_set(handle, inode, &i, is); + + entry = IFIRST(header); + if (entry_size + EXT4_XATTR_SIZE(size) >= new_extra_isize) + shift_bytes = new_extra_isize; + else + shift_bytes = entry_size + size; + /* Adjust the offsets and shift the remaining entries ahead */ + ext4_xattr_shift_entries(entry, EXT4_I(inode)->i_extra_isize - + shift_bytes, (void *)raw_inode + + EXT4_GOOD_OLD_INODE_SIZE + extra_isize + shift_bytes, + (void *)header, total_ino - entry_size, + inode->i_sb->s_blocksize); + + extra_isize += shift_bytes; + new_extra_isize -= shift_bytes; + EXT4_I(inode)->i_extra_isize = extra_isize; + + i.name = b_entry_name; + i.value = buffer; + i.value_len = cpu_to_le32(size); + error = ext4_xattr_block_find(inode, &i, bs); + if (error) + goto cleanup; + + /* Add entry which was removed from the inode into the block */ + error = ext4_xattr_block_set(handle, inode, &i, bs); + if (error) + goto cleanup; + kfree(b_entry_name); + kfree(buffer); + brelse(is->iloc.bh); + kfree(is); + kfree(bs); + } + brelse(bh); + up_write(&EXT4_I(inode)->xattr_sem); + return 0; + +cleanup: + kfree(b_entry_name); + kfree(buffer); + if (is) + brelse(is->iloc.bh); + kfree(is); + kfree(bs); + brelse(bh); + up_write(&EXT4_I(inode)->xattr_sem); + return error; +} + + + +/* * ext4_xattr_delete_inode() * * Free extended attribute resources associated with this inode. This diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h index 79432b35398f..d7f5d6a12651 100644 --- a/fs/ext4/xattr.h +++ b/fs/ext4/xattr.h @@ -56,6 +56,13 @@ struct ext4_xattr_entry { #define EXT4_XATTR_SIZE(size) \ (((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND) +#define IHDR(inode, raw_inode) \ + ((struct ext4_xattr_ibody_header *) \ + ((void *)raw_inode + \ + EXT4_GOOD_OLD_INODE_SIZE + \ + EXT4_I(inode)->i_extra_isize)) +#define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1)) + # ifdef CONFIG_EXT4DEV_FS_XATTR extern struct xattr_handler ext4_xattr_user_handler; @@ -74,6 +81,9 @@ extern int ext4_xattr_set_handle(handle_t *, struct inode *, int, const char *, extern void ext4_xattr_delete_inode(handle_t *, struct inode *); extern void ext4_xattr_put_super(struct super_block *); +extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, + struct ext4_inode *raw_inode, handle_t *handle); + extern int init_ext4_xattr(void); extern void exit_ext4_xattr(void); @@ -129,6 +139,13 @@ exit_ext4_xattr(void) { } +static inline int +ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, + struct ext4_inode *raw_inode, handle_t *handle) +{ + return -EOPNOTSUPP; +} + #define ext4_xattr_handlers NULL # endif /* CONFIG_EXT4DEV_FS_XATTR */ diff --git a/fs/fat/inode.c b/fs/fat/inode.c index cfaf5877d98b..0a7ddb39a593 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -20,6 +20,7 @@ #include <linux/pagemap.h> #include <linux/mpage.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <linux/mount.h> #include <linux/vfs.h> #include <linux/parser.h> diff --git a/fs/fcntl.c b/fs/fcntl.c index 8e382a5d51bd..3f22e9f4f691 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -215,7 +215,7 @@ static int setfl(int fd, struct file * filp, unsigned long arg) /* O_NOATIME can only be set by the owner or superuser */ if ((arg & O_NOATIME) && !(filp->f_flags & O_NOATIME)) - if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; /* required for strict SunOS emulation */ diff --git a/fs/generic_acl.c b/fs/generic_acl.c index 9ccb78947171..995d63b2e747 100644 --- a/fs/generic_acl.c +++ b/fs/generic_acl.c @@ -78,7 +78,7 @@ generic_acl_set(struct inode *inode, struct generic_acl_operations *ops, if (S_ISLNK(inode->i_mode)) return -EOPNOTSUPP; - if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (value) { acl = posix_acl_from_xattr(value, size); diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c index 6e80844367ee..1047a8c7226a 100644 --- a/fs/gfs2/acl.c +++ b/fs/gfs2/acl.c @@ -74,7 +74,7 @@ int gfs2_acl_validate_remove(struct gfs2_inode *ip, int access) { if (!GFS2_SB(&ip->i_inode)->sd_args.ar_posix_acl) return -EOPNOTSUPP; - if (current->fsuid != ip->i_inode.i_uid && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(&ip->i_inode)) return -EPERM; if (S_ISLNK(ip->i_inode.i_mode)) return -EOPNOTSUPP; diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c index 26c888890c24..ce90032c010e 100644 --- a/fs/gfs2/ops_address.c +++ b/fs/gfs2/ops_address.c @@ -251,7 +251,7 @@ static int gfs2_readpage(struct file *file, struct page *page) if (file) { gf = file->private_data; if (test_bit(GFF_EXLOCK, &gf->f_flags)) - /* gfs2_sharewrite_nopage has grabbed the ip->i_gl already */ + /* gfs2_sharewrite_fault has grabbed the ip->i_gl already */ goto skip_lock; } gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME|LM_FLAG_TRY_1CB, &gh); diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c index 99ea5659bc2c..b8312edee0e4 100644 --- a/fs/gfs2/ops_export.c +++ b/fs/gfs2/ops_export.c @@ -11,6 +11,7 @@ #include <linux/spinlock.h> #include <linux/completion.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <linux/gfs2_ondisk.h> #include <linux/crc32.h> #include <linux/lm_interface.h> diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c index 196d83266e34..1a5e8e893d75 100644 --- a/fs/gfs2/ops_file.c +++ b/fs/gfs2/ops_file.c @@ -489,6 +489,29 @@ static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync) } /** + * gfs2_setlease - acquire/release a file lease + * @file: the file pointer + * @arg: lease type + * @fl: file lock + * + * Returns: errno + */ + +static int gfs2_setlease(struct file *file, long arg, struct file_lock **fl) +{ + struct gfs2_sbd *sdp = GFS2_SB(file->f_mapping->host); + + /* + * We don't currently have a way to enforce a lease across the whole + * cluster; until we do, disable leases (by just returning -EINVAL), + * unless the administrator has requested purely local locking. + */ + if (!sdp->sd_args.ar_localflocks) + return -EINVAL; + return setlease(file, arg, fl); +} + +/** * gfs2_lock - acquire/release a posix lock on a file * @file: the file pointer * @cmd: either modify or retrieve lock state, possibly wait @@ -638,6 +661,7 @@ const struct file_operations gfs2_file_fops = { .flock = gfs2_flock, .splice_read = generic_file_splice_read, .splice_write = generic_file_splice_write, + .setlease = gfs2_setlease, }; const struct file_operations gfs2_dir_fops = { diff --git a/fs/gfs2/ops_vm.c b/fs/gfs2/ops_vm.c index 404b7cc9f8c4..927d739d4685 100644 --- a/fs/gfs2/ops_vm.c +++ b/fs/gfs2/ops_vm.c @@ -27,13 +27,12 @@ #include "trans.h" #include "util.h" -static struct page *gfs2_private_nopage(struct vm_area_struct *area, - unsigned long address, int *type) +static int gfs2_private_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { - struct gfs2_inode *ip = GFS2_I(area->vm_file->f_mapping->host); + struct gfs2_inode *ip = GFS2_I(vma->vm_file->f_mapping->host); set_bit(GIF_PAGED, &ip->i_flags); - return filemap_nopage(area, address, type); + return filemap_fault(vma, vmf); } static int alloc_page_backing(struct gfs2_inode *ip, struct page *page) @@ -104,58 +103,67 @@ out: return error; } -static struct page *gfs2_sharewrite_nopage(struct vm_area_struct *area, - unsigned long address, int *type) +static int gfs2_sharewrite_fault(struct vm_area_struct *vma, + struct vm_fault *vmf) { - struct file *file = area->vm_file; + struct file *file = vma->vm_file; struct gfs2_file *gf = file->private_data; struct gfs2_inode *ip = GFS2_I(file->f_mapping->host); struct gfs2_holder i_gh; - struct page *result = NULL; - unsigned long index = ((address - area->vm_start) >> PAGE_CACHE_SHIFT) + - area->vm_pgoff; int alloc_required; int error; + int ret = 0; error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh); if (error) - return NULL; + goto out; set_bit(GIF_PAGED, &ip->i_flags); set_bit(GIF_SW_PAGED, &ip->i_flags); - error = gfs2_write_alloc_required(ip, (u64)index << PAGE_CACHE_SHIFT, - PAGE_CACHE_SIZE, &alloc_required); - if (error) - goto out; + error = gfs2_write_alloc_required(ip, + (u64)vmf->pgoff << PAGE_CACHE_SHIFT, + PAGE_CACHE_SIZE, &alloc_required); + if (error) { + ret = VM_FAULT_OOM; /* XXX: are these right? */ + goto out_unlock; + } set_bit(GFF_EXLOCK, &gf->f_flags); - result = filemap_nopage(area, address, type); + ret = filemap_fault(vma, vmf); clear_bit(GFF_EXLOCK, &gf->f_flags); - if (!result || result == NOPAGE_OOM) - goto out; + if (ret & VM_FAULT_ERROR) + goto out_unlock; if (alloc_required) { - error = alloc_page_backing(ip, result); + /* XXX: do we need to drop page lock around alloc_page_backing?*/ + error = alloc_page_backing(ip, vmf->page); if (error) { - page_cache_release(result); - result = NULL; - goto out; + /* + * VM_FAULT_LOCKED should always be the case for + * filemap_fault, but it may not be in a future + * implementation. + */ + if (ret & VM_FAULT_LOCKED) + unlock_page(vmf->page); + page_cache_release(vmf->page); + ret = VM_FAULT_OOM; + goto out_unlock; } - set_page_dirty(result); + set_page_dirty(vmf->page); } -out: +out_unlock: gfs2_glock_dq_uninit(&i_gh); - - return result; +out: + return ret; } struct vm_operations_struct gfs2_vm_ops_private = { - .nopage = gfs2_private_nopage, + .fault = gfs2_private_fault, }; struct vm_operations_struct gfs2_vm_ops_sharewrite = { - .nopage = gfs2_sharewrite_nopage, + .fault = gfs2_sharewrite_fault, }; diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c index 79fd10402ea3..b60c0affbec5 100644 --- a/fs/hfsplus/ioctl.c +++ b/fs/hfsplus/ioctl.c @@ -38,7 +38,7 @@ int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EACCES; if (get_user(flags, (int __user *)arg)) diff --git a/fs/inode.c b/fs/inode.c index 9a012cc5b6cd..320e088d0b28 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -145,7 +145,7 @@ static struct inode *alloc_inode(struct super_block *sb) mapping->a_ops = &empty_aops; mapping->host = inode; mapping->flags = 0; - mapping_set_gfp_mask(mapping, GFP_HIGHUSER); + mapping_set_gfp_mask(mapping, GFP_HIGHUSER_PAGECACHE); mapping->assoc_mapping = NULL; mapping->backing_dev_info = &default_backing_dev_info; @@ -462,6 +462,11 @@ static int shrink_icache_memory(int nr, gfp_t gfp_mask) return (inodes_stat.nr_unused / 100) * sysctl_vfs_cache_pressure; } +static struct shrinker icache_shrinker = { + .shrink = shrink_icache_memory, + .seeks = DEFAULT_SEEKS, +}; + static void __wait_on_freeing_inode(struct inode *inode); /* * Called with the inode lock held. @@ -519,7 +524,13 @@ repeat: * new_inode - obtain an inode * @sb: superblock * - * Allocates a new inode for given superblock. + * Allocates a new inode for given superblock. The default gfp_mask + * for allocations related to inode->i_mapping is GFP_HIGHUSER_PAGECACHE. + * If HIGHMEM pages are unsuitable or it is known that pages allocated + * for the page cache are not reclaimable or migratable, + * mapping_set_gfp_mask() must be called with suitable flags on the + * newly created inode's mapping + * */ struct inode *new_inode(struct super_block *sb) { @@ -1379,7 +1390,7 @@ void __init inode_init(unsigned long mempages) SLAB_MEM_SPREAD), init_once, NULL); - set_shrinker(DEFAULT_SEEKS, shrink_icache_memory); + register_shrinker(&icache_shrinker); /* Hash may have been set up in inode_init_early */ if (!hashdist) diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h index efe2872cd4e3..a07e67b1ea7f 100644 --- a/fs/isofs/isofs.h +++ b/fs/isofs/isofs.h @@ -1,5 +1,6 @@ #include <linux/fs.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <linux/iso_fs.h> #include <asm/unaligned.h> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 78d63b818f0b..f290cb7cb834 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -35,6 +35,7 @@ #include <linux/kthread.h> #include <linux/poison.h> #include <linux/proc_fs.h> +#include <linux/debugfs.h> #include <asm/uaccess.h> #include <asm/page.h> @@ -528,7 +529,7 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid) { int err = 0; -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG spin_lock(&journal->j_state_lock); if (!tid_geq(journal->j_commit_request, tid)) { printk(KERN_EMERG @@ -1709,7 +1710,7 @@ void jbd2_slab_free(void *ptr, size_t size) * Journal_head storage management */ static struct kmem_cache *jbd2_journal_head_cache; -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG static atomic_t nr_journal_heads = ATOMIC_INIT(0); #endif @@ -1747,7 +1748,7 @@ static struct journal_head *journal_alloc_journal_head(void) struct journal_head *ret; static unsigned long last_warning; -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG atomic_inc(&nr_journal_heads); #endif ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS); @@ -1768,7 +1769,7 @@ static struct journal_head *journal_alloc_journal_head(void) static void journal_free_journal_head(struct journal_head *jh) { -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG atomic_dec(&nr_journal_heads); memset(jh, JBD_POISON_FREE, sizeof(*jh)); #endif @@ -1951,64 +1952,50 @@ void jbd2_journal_put_journal_head(struct journal_head *jh) } /* - * /proc tunables + * debugfs tunables */ -#if defined(CONFIG_JBD_DEBUG) -int jbd2_journal_enable_debug; +#if defined(CONFIG_JBD2_DEBUG) +u8 jbd2_journal_enable_debug; EXPORT_SYMBOL(jbd2_journal_enable_debug); #endif -#if defined(CONFIG_JBD_DEBUG) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_JBD2_DEBUG) && defined(CONFIG_DEBUG_FS) -static struct proc_dir_entry *proc_jbd_debug; +#define JBD2_DEBUG_NAME "jbd2-debug" -static int read_jbd_debug(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int ret; +struct dentry *jbd2_debugfs_dir, *jbd2_debug; - ret = sprintf(page + off, "%d\n", jbd2_journal_enable_debug); - *eof = 1; - return ret; +static void __init jbd2_create_debugfs_entry(void) +{ + jbd2_debugfs_dir = debugfs_create_dir("jbd2", NULL); + if (jbd2_debugfs_dir) + jbd2_debug = debugfs_create_u8(JBD2_DEBUG_NAME, S_IRUGO, + jbd2_debugfs_dir, + &jbd2_journal_enable_debug); } -static int write_jbd_debug(struct file *file, const char __user *buffer, - unsigned long count, void *data) +static void __exit jbd2_remove_debugfs_entry(void) { - char buf[32]; - - if (count > ARRAY_SIZE(buf) - 1) - count = ARRAY_SIZE(buf) - 1; - if (copy_from_user(buf, buffer, count)) - return -EFAULT; - buf[ARRAY_SIZE(buf) - 1] = '\0'; - jbd2_journal_enable_debug = simple_strtoul(buf, NULL, 10); - return count; + if (jbd2_debug) + debugfs_remove(jbd2_debug); + if (jbd2_debugfs_dir) + debugfs_remove(jbd2_debugfs_dir); } -#define JBD_PROC_NAME "sys/fs/jbd2-debug" +#else -static void __init create_jbd_proc_entry(void) +static void __init jbd2_create_debugfs_entry(void) { - proc_jbd_debug = create_proc_entry(JBD_PROC_NAME, 0644, NULL); - if (proc_jbd_debug) { - /* Why is this so hard? */ - proc_jbd_debug->read_proc = read_jbd_debug; - proc_jbd_debug->write_proc = write_jbd_debug; - } + do { + } while (0); } -static void __exit jbd2_remove_jbd_proc_entry(void) +static void __exit jbd2_remove_debugfs_entry(void) { - if (proc_jbd_debug) - remove_proc_entry(JBD_PROC_NAME, NULL); + do { + } while (0); } -#else - -#define create_jbd_proc_entry() do {} while (0) -#define jbd2_remove_jbd_proc_entry() do {} while (0) - #endif struct kmem_cache *jbd2_handle_cache; @@ -2067,18 +2054,18 @@ static int __init journal_init(void) ret = journal_init_caches(); if (ret != 0) jbd2_journal_destroy_caches(); - create_jbd_proc_entry(); + jbd2_create_debugfs_entry(); return ret; } static void __exit journal_exit(void) { -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG int n = atomic_read(&nr_journal_heads); if (n) printk(KERN_EMERG "JBD: leaked %d journal_heads!\n", n); #endif - jbd2_remove_jbd_proc_entry(); + jbd2_remove_debugfs_entry(); jbd2_journal_destroy_caches(); } diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c index 395c92a04ac9..b50be8a044eb 100644 --- a/fs/jbd2/recovery.c +++ b/fs/jbd2/recovery.c @@ -251,10 +251,10 @@ int jbd2_journal_recover(journal_t *journal) if (!err) err = do_one_pass(journal, &info, PASS_REPLAY); - jbd_debug(0, "JBD: recovery, exit status %d, " + jbd_debug(1, "JBD: recovery, exit status %d, " "recovered transactions %u to %u\n", err, info.start_transaction, info.end_transaction); - jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n", + jbd_debug(1, "JBD: Replayed %d and revoked %d/%d blocks\n", info.nr_replays, info.nr_revoke_hits, info.nr_revokes); /* Restart the log at the next transaction ID, thus invalidating @@ -295,10 +295,10 @@ int jbd2_journal_skip_recovery(journal_t *journal) printk(KERN_ERR "JBD: error %d scanning journal\n", err); ++journal->j_transaction_sequence; } else { -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG int dropped = info.end_transaction - be32_to_cpu(sb->s_sequence); #endif - jbd_debug(0, + jbd_debug(1, "JBD: ignoring %d transaction%s from the journal.\n", dropped, (dropped == 1) ? "" : "s"); journal->j_transaction_sequence = ++info.end_transaction; diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index a46101ee867a..65b3a1b5b88d 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c @@ -435,7 +435,7 @@ static int jffs2_acl_setxattr(struct inode *inode, int type, const void *value, struct posix_acl *acl; int rc; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (value) { diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c index 0c82dfcfd246..143c5530caf3 100644 --- a/fs/jffs2/background.c +++ b/fs/jffs2/background.c @@ -81,6 +81,7 @@ static int jffs2_garbage_collect_thread(void *_c) set_user_nice(current, 10); + set_freezable(); for (;;) { allow_signal(SIGHUP); diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c index fe063af6fd2f..3c8663bea98c 100644 --- a/fs/jfs/ioctl.c +++ b/fs/jfs/ioctl.c @@ -69,7 +69,7 @@ int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd, if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EACCES; if (get_user(flags, (int __user *) arg)) diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h index 2374b595f2e1..f0ec72b263f1 100644 --- a/fs/jfs/jfs_inode.h +++ b/fs/jfs/jfs_inode.h @@ -32,6 +32,7 @@ extern void jfs_truncate_nolock(struct inode *, loff_t); extern void jfs_free_zero_link(struct inode *); extern struct dentry *jfs_get_parent(struct dentry *dentry); extern void jfs_get_inode_flags(struct jfs_inode_info *); +extern struct dentry *jfs_get_dentry(struct super_block *sb, void *vobjp); extern void jfs_set_inode_flags(struct inode *); extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int); diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c index 25161c4121e4..932797ba433b 100644 --- a/fs/jfs/namei.c +++ b/fs/jfs/namei.c @@ -1477,6 +1477,38 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc return dentry; } +struct dentry *jfs_get_dentry(struct super_block *sb, void *vobjp) +{ + __u32 *objp = vobjp; + unsigned long ino = objp[0]; + __u32 generation = objp[1]; + struct inode *inode; + struct dentry *result; + + if (ino == 0) + return ERR_PTR(-ESTALE); + inode = iget(sb, ino); + if (inode == NULL) + return ERR_PTR(-ENOMEM); + + if (is_bad_inode(inode) || + (generation && inode->i_generation != generation)) { + result = ERR_PTR(-ESTALE); + goto out_iput; + } + + result = d_alloc_anon(inode); + if (!result) { + result = ERR_PTR(-ENOMEM); + goto out_iput; + } + return result; + + out_iput: + iput(inode); + return result; +} + struct dentry *jfs_get_parent(struct dentry *dentry) { struct super_block *sb = dentry->d_inode->i_sb; diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 20e4ac1c79a3..929fceca7999 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -27,6 +27,7 @@ #include <linux/kthread.h> #include <linux/posix_acl.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <asm/uaccess.h> #include <linux/seq_file.h> @@ -737,6 +738,7 @@ static const struct super_operations jfs_super_operations = { }; static struct export_operations jfs_export_operations = { + .get_dentry = jfs_get_dentry, .get_parent = jfs_get_parent, }; diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c index b2375f0774b7..9b7f2cdaae0a 100644 --- a/fs/jfs/xattr.c +++ b/fs/jfs/xattr.c @@ -697,7 +697,7 @@ static int can_set_system_xattr(struct inode *inode, const char *name, struct posix_acl *acl; int rc; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; /* diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c index 26809325469c..82e2192a0d5c 100644 --- a/fs/lockd/svc.c +++ b/fs/lockd/svc.c @@ -25,6 +25,7 @@ #include <linux/smp.h> #include <linux/smp_lock.h> #include <linux/mutex.h> +#include <linux/freezer.h> #include <linux/sunrpc/types.h> #include <linux/sunrpc/stats.h> @@ -75,18 +76,31 @@ static const int nlm_port_min = 0, nlm_port_max = 65535; static struct ctl_table_header * nlm_sysctl_table; -static unsigned long set_grace_period(void) +static unsigned long get_lockd_grace_period(void) { - unsigned long grace_period; - /* Note: nlm_timeout should always be nonzero */ if (nlm_grace_period) - grace_period = ((nlm_grace_period + nlm_timeout - 1) - / nlm_timeout) * nlm_timeout * HZ; + return roundup(nlm_grace_period, nlm_timeout) * HZ; else - grace_period = nlm_timeout * 5 * HZ; + return nlm_timeout * 5 * HZ; +} + +unsigned long get_nfs_grace_period(void) +{ + unsigned long lockdgrace = get_lockd_grace_period(); + unsigned long nfsdgrace = 0; + + if (nlmsvc_ops) + nfsdgrace = nlmsvc_ops->get_grace_period(); + + return max(lockdgrace, nfsdgrace); +} +EXPORT_SYMBOL(get_nfs_grace_period); + +static unsigned long set_grace_period(void) +{ nlmsvc_grace_period = 1; - return grace_period + jiffies; + return get_nfs_grace_period() + jiffies; } static inline void clear_grace_period(void) @@ -119,6 +133,7 @@ lockd(struct svc_rqst *rqstp) complete(&lockd_start_done); daemonize("lockd"); + set_freezable(); /* Process request with signals blocked, but allow SIGKILL. */ allow_signal(SIGKILL); diff --git a/fs/locks.c b/fs/locks.c index 431a8b871fce..4f2d749ac624 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -458,22 +458,20 @@ static int lease_init(struct file *filp, int type, struct file_lock *fl) } /* Allocate a file_lock initialised to this type of lease */ -static int lease_alloc(struct file *filp, int type, struct file_lock **flp) +static struct file_lock *lease_alloc(struct file *filp, int type) { struct file_lock *fl = locks_alloc_lock(); int error = -ENOMEM; if (fl == NULL) - goto out; + return ERR_PTR(error); error = lease_init(filp, type, fl); if (error) { locks_free_lock(fl); - fl = NULL; + return ERR_PTR(error); } -out: - *flp = fl; - return error; + return fl; } /* Check if two locks overlap each other. @@ -661,7 +659,7 @@ static int locks_block_on_timeout(struct file_lock *blocker, struct file_lock *w return result; } -int +void posix_test_lock(struct file *filp, struct file_lock *fl) { struct file_lock *cfl; @@ -673,14 +671,12 @@ posix_test_lock(struct file *filp, struct file_lock *fl) if (posix_locks_conflict(cfl, fl)) break; } - if (cfl) { + if (cfl) __locks_copy_lock(fl, cfl); - unlock_kernel(); - return 1; - } else + else fl->fl_type = F_UNLCK; unlock_kernel(); - return 0; + return; } EXPORT_SYMBOL(posix_test_lock); @@ -1169,9 +1165,9 @@ static void time_out_leases(struct inode *inode) * @inode: the inode of the file to return * @mode: the open mode (read or write) * - * break_lease (inlined for speed) has checked there already - * is a lease on this file. Leases are broken on a call to open() - * or truncate(). This function can sleep unless you + * break_lease (inlined for speed) has checked there already is at least + * some kind of lock (maybe a lease) on this file. Leases are broken on + * a call to open() or truncate(). This function can sleep unless you * specified %O_NONBLOCK to your open(). */ int __break_lease(struct inode *inode, unsigned int mode) @@ -1179,12 +1175,10 @@ int __break_lease(struct inode *inode, unsigned int mode) int error = 0, future; struct file_lock *new_fl, *flock; struct file_lock *fl; - int alloc_err; unsigned long break_time; int i_have_this_lease = 0; - alloc_err = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK, - &new_fl); + new_fl = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK); lock_kernel(); @@ -1212,8 +1206,9 @@ int __break_lease(struct inode *inode, unsigned int mode) goto out; } - if (alloc_err && !i_have_this_lease && ((mode & O_NONBLOCK) == 0)) { - error = alloc_err; + if (IS_ERR(new_fl) && !i_have_this_lease + && ((mode & O_NONBLOCK) == 0)) { + error = PTR_ERR(new_fl); goto out; } @@ -1260,7 +1255,7 @@ restart: out: unlock_kernel(); - if (!alloc_err) + if (!IS_ERR(new_fl)) locks_free_lock(new_fl); return error; } @@ -1329,7 +1324,7 @@ int fcntl_getlease(struct file *filp) } /** - * __setlease - sets a lease on an open file + * setlease - sets a lease on an open file * @filp: file pointer * @arg: type of lease to obtain * @flp: input - file_lock to use, output - file_lock inserted @@ -1339,18 +1334,24 @@ int fcntl_getlease(struct file *filp) * * Called with kernel lock held. */ -static int __setlease(struct file *filp, long arg, struct file_lock **flp) +int setlease(struct file *filp, long arg, struct file_lock **flp) { struct file_lock *fl, **before, **my_before = NULL, *lease; struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; int error, rdlease_count = 0, wrlease_count = 0; + if ((current->fsuid != inode->i_uid) && !capable(CAP_LEASE)) + return -EACCES; + if (!S_ISREG(inode->i_mode)) + return -EINVAL; + error = security_file_lock(filp, arg); + if (error) + return error; + time_out_leases(inode); - error = -EINVAL; - if (!flp || !(*flp) || !(*flp)->fl_lmops || !(*flp)->fl_lmops->fl_break) - goto out; + BUG_ON(!(*flp)->fl_lmops->fl_break); lease = *flp; @@ -1418,39 +1419,49 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp) out: return error; } +EXPORT_SYMBOL(setlease); /** - * setlease - sets a lease on an open file + * vfs_setlease - sets a lease on an open file * @filp: file pointer * @arg: type of lease to obtain * @lease: file_lock to use * * Call this to establish a lease on the file. - * The fl_lmops fl_break function is required by break_lease + * The (*lease)->fl_lmops->fl_break operation must be set; if not, + * break_lease will oops! + * + * This will call the filesystem's setlease file method, if + * defined. Note that there is no getlease method; instead, the + * filesystem setlease method should call back to setlease() to + * add a lease to the inode's lease list, where fcntl_getlease() can + * find it. Since fcntl_getlease() only reports whether the current + * task holds a lease, a cluster filesystem need only do this for + * leases held by processes on this node. + * + * There is also no break_lease method; filesystems that + * handle their own leases shoud break leases themselves from the + * filesystem's open, create, and (on truncate) setattr methods. + * + * Warning: the only current setlease methods exist only to disable + * leases in certain cases. More vfs changes may be required to + * allow a full filesystem lease implementation. */ -int setlease(struct file *filp, long arg, struct file_lock **lease) +int vfs_setlease(struct file *filp, long arg, struct file_lock **lease) { - struct dentry *dentry = filp->f_path.dentry; - struct inode *inode = dentry->d_inode; int error; - if ((current->fsuid != inode->i_uid) && !capable(CAP_LEASE)) - return -EACCES; - if (!S_ISREG(inode->i_mode)) - return -EINVAL; - error = security_file_lock(filp, arg); - if (error) - return error; - lock_kernel(); - error = __setlease(filp, arg, lease); + if (filp->f_op && filp->f_op->setlease) + error = filp->f_op->setlease(filp, arg, lease); + else + error = setlease(filp, arg, lease); unlock_kernel(); return error; } - -EXPORT_SYMBOL(setlease); +EXPORT_SYMBOL_GPL(vfs_setlease); /** * fcntl_setlease - sets a lease on an open file @@ -1469,14 +1480,6 @@ int fcntl_setlease(unsigned int fd, struct file *filp, long arg) struct inode *inode = dentry->d_inode; int error; - if ((current->fsuid != inode->i_uid) && !capable(CAP_LEASE)) - return -EACCES; - if (!S_ISREG(inode->i_mode)) - return -EINVAL; - error = security_file_lock(filp, arg); - if (error) - return error; - locks_init_lock(&fl); error = lease_init(filp, arg, &fl); if (error) @@ -1484,15 +1487,15 @@ int fcntl_setlease(unsigned int fd, struct file *filp, long arg) lock_kernel(); - error = __setlease(filp, arg, &flp); + error = vfs_setlease(filp, arg, &flp); if (error || arg == F_UNLCK) goto out_unlock; error = fasync_helper(fd, filp, 1, &flp->fl_fasync); if (error < 0) { - /* remove lease just inserted by __setlease */ + /* remove lease just inserted by setlease */ flp->fl_type = F_UNLCK | F_INPROGRESS; - flp->fl_break_time = jiffies- 10; + flp->fl_break_time = jiffies - 10; time_out_leases(inode); goto out_unlock; } @@ -1597,8 +1600,7 @@ asmlinkage long sys_flock(unsigned int fd, unsigned int cmd) /** * vfs_test_lock - test file byte range lock * @filp: The file to test lock for - * @fl: The lock to test - * @conf: Place to return a copy of the conflicting lock, if found + * @fl: The lock to test; also used to hold result * * Returns -ERRNO on failure. Indicates presence of conflicting lock by * setting conf->fl_type to something other than F_UNLCK. diff --git a/fs/mbcache.c b/fs/mbcache.c index deeb9dc062d9..fbb1d02f8791 100644 --- a/fs/mbcache.c +++ b/fs/mbcache.c @@ -100,7 +100,6 @@ struct mb_cache { static LIST_HEAD(mb_cache_list); static LIST_HEAD(mb_cache_lru_list); static DEFINE_SPINLOCK(mb_cache_spinlock); -static struct shrinker *mb_shrinker; static inline int mb_cache_indexes(struct mb_cache *cache) @@ -118,6 +117,10 @@ mb_cache_indexes(struct mb_cache *cache) static int mb_cache_shrink_fn(int nr_to_scan, gfp_t gfp_mask); +static struct shrinker mb_cache_shrinker = { + .shrink = mb_cache_shrink_fn, + .seeks = DEFAULT_SEEKS, +}; static inline int __mb_cache_entry_is_hashed(struct mb_cache_entry *ce) @@ -662,13 +665,13 @@ mb_cache_entry_find_next(struct mb_cache_entry *prev, int index, static int __init init_mbcache(void) { - mb_shrinker = set_shrinker(DEFAULT_SEEKS, mb_cache_shrink_fn); + register_shrinker(&mb_cache_shrinker); return 0; } static void __exit exit_mbcache(void) { - remove_shrinker(mb_shrinker); + unregister_shrinker(&mb_cache_shrinker); } module_init(init_mbcache) diff --git a/fs/namei.c b/fs/namei.c index 5e2d98d10c5d..a83160acd748 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -107,6 +107,8 @@ * any extra contention... */ +static int fastcall link_path_walk(const char *name, struct nameidata *nd); + /* In order to reduce some races, while at the same time doing additional * checking and hopefully speeding things up, we copy filenames to the * kernel data space before using them.. @@ -998,7 +1000,7 @@ return_err: * Retry the whole path once, forcing real lookup requests * instead of relying on the dcache. */ -int fastcall link_path_walk(const char *name, struct nameidata *nd) +static int fastcall link_path_walk(const char *name, struct nameidata *nd) { struct nameidata save = *nd; int result; @@ -1022,7 +1024,7 @@ int fastcall link_path_walk(const char *name, struct nameidata *nd) return result; } -int fastcall path_walk(const char * name, struct nameidata *nd) +static int fastcall path_walk(const char * name, struct nameidata *nd) { current->total_link_count = 0; return link_path_walk(name, nd); @@ -1172,6 +1174,37 @@ int fastcall path_lookup(const char *name, unsigned int flags, return do_path_lookup(AT_FDCWD, name, flags, nd); } +/** + * vfs_path_lookup - lookup a file path relative to a dentry-vfsmount pair + * @dentry: pointer to dentry of the base directory + * @mnt: pointer to vfs mount of the base directory + * @name: pointer to file name + * @flags: lookup flags + * @nd: pointer to nameidata + */ +int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt, + const char *name, unsigned int flags, + struct nameidata *nd) +{ + int retval; + + /* same as do_path_lookup */ + nd->last_type = LAST_ROOT; + nd->flags = flags; + nd->depth = 0; + + nd->mnt = mntget(mnt); + nd->dentry = dget(dentry); + + retval = path_walk(name, nd); + if (unlikely(!retval && !audit_dummy_context() && nd->dentry && + nd->dentry->d_inode)) + audit_inode(name, nd->dentry->d_inode); + + return retval; + +} + static int __path_lookup_intent_open(int dfd, const char *name, unsigned int lookup_flags, struct nameidata *nd, int open_flags, int create_mode) @@ -1576,7 +1609,7 @@ int may_open(struct nameidata *nd, int acc_mode, int flag) /* O_NOATIME can only be set by the owner or superuser */ if (flag & O_NOATIME) - if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; /* @@ -2774,8 +2807,8 @@ EXPORT_SYMBOL(__page_symlink); EXPORT_SYMBOL(page_symlink); EXPORT_SYMBOL(page_symlink_inode_operations); EXPORT_SYMBOL(path_lookup); +EXPORT_SYMBOL(vfs_path_lookup); EXPORT_SYMBOL(path_release); -EXPORT_SYMBOL(path_walk); EXPORT_SYMBOL(permission); EXPORT_SYMBOL(vfs_permission); EXPORT_SYMBOL(file_permission); diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c index 70a69115500f..a94473d3072c 100644 --- a/fs/ncpfs/mmap.c +++ b/fs/ncpfs/mmap.c @@ -24,31 +24,35 @@ /* * Fill in the supplied page for mmap + * XXX: how are we excluding truncate/invalidate here? Maybe need to lock + * page? */ -static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area, - unsigned long address, int *type) +static int ncp_file_mmap_fault(struct vm_area_struct *area, + struct vm_fault *vmf) { struct file *file = area->vm_file; struct dentry *dentry = file->f_path.dentry; struct inode *inode = dentry->d_inode; - struct page* page; char *pg_addr; unsigned int already_read; unsigned int count; int bufsize; - int pos; + int pos; /* XXX: loff_t ? */ - page = alloc_page(GFP_HIGHUSER); /* ncpfs has nothing against high pages - as long as recvmsg and memset works on it */ - if (!page) - return page; - pg_addr = kmap(page); - address &= PAGE_MASK; - pos = address - area->vm_start + (area->vm_pgoff << PAGE_SHIFT); + /* + * ncpfs has nothing against high pages as long + * as recvmsg and memset works on it + */ + vmf->page = alloc_page(GFP_HIGHUSER); + if (!vmf->page) + return VM_FAULT_OOM; + pg_addr = kmap(vmf->page); + pos = vmf->pgoff << PAGE_SHIFT; count = PAGE_SIZE; - if (address + PAGE_SIZE > area->vm_end) { - count = area->vm_end - address; + if ((unsigned long)vmf->virtual_address + PAGE_SIZE > area->vm_end) { + WARN_ON(1); /* shouldn't happen? */ + count = area->vm_end - (unsigned long)vmf->virtual_address; } /* what we can read in one go */ bufsize = NCP_SERVER(inode)->buffer_size; @@ -83,23 +87,21 @@ static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area, if (already_read < PAGE_SIZE) memset(pg_addr + already_read, 0, PAGE_SIZE - already_read); - flush_dcache_page(page); - kunmap(page); + flush_dcache_page(vmf->page); + kunmap(vmf->page); /* * If I understand ncp_read_kernel() properly, the above always * fetches from the network, here the analogue of disk. * -- wli */ - if (type) - *type = VM_FAULT_MAJOR; count_vm_event(PGMAJFAULT); - return page; + return VM_FAULT_MAJOR; } static struct vm_operations_struct ncp_file_mmap = { - .nopage = ncp_file_mmap_nopage, + .fault = ncp_file_mmap_fault, }; diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index 75f309c8741a..a796be5051bf 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -14,6 +14,7 @@ #include <linux/sunrpc/svcsock.h> #include <linux/nfs_fs.h> #include <linux/mutex.h> +#include <linux/freezer.h> #include <net/inet_sock.h> @@ -67,6 +68,7 @@ static void nfs_callback_svc(struct svc_rqst *rqstp) daemonize("nfsv4-svc"); /* Process request with signals blocked, but allow SIGKILL. */ allow_signal(SIGKILL); + set_freezable(); complete(&nfs_callback_info.started); diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 8689b736fdd9..c87dc713b5d7 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -53,6 +53,7 @@ static int nfs_fsync(struct file *, struct dentry *dentry, int datasync); static int nfs_check_flags(int flags); static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl); static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl); +static int nfs_setlease(struct file *file, long arg, struct file_lock **fl); const struct file_operations nfs_file_operations = { .llseek = nfs_file_llseek, @@ -69,6 +70,7 @@ const struct file_operations nfs_file_operations = { .flock = nfs_flock, .splice_read = nfs_file_splice_read, .check_flags = nfs_check_flags, + .setlease = nfs_setlease, }; const struct inode_operations nfs_file_inode_operations = { @@ -400,7 +402,9 @@ static int do_getlk(struct file *filp, int cmd, struct file_lock *fl) lock_kernel(); /* Try local locking first */ - if (posix_test_lock(filp, fl)) { + posix_test_lock(filp, fl); + if (fl->fl_type != F_UNLCK) { + /* found a conflict */ goto out; } @@ -558,3 +562,13 @@ static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl) return do_unlk(filp, cmd, fl); return do_setlk(filp, cmd, fl); } + +static int nfs_setlease(struct file *file, long arg, struct file_lock **fl) +{ + /* + * There is no protocol support for leases, so we have no way + * to implement them correctly in the face of opens by other + * clients. + */ + return -EINVAL; +} diff --git a/fs/nfs/super.c b/fs/nfs/super.c index a2b1af89ca1a..adffe1615c51 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -300,7 +300,10 @@ static const struct super_operations nfs4_sops = { }; #endif -static struct shrinker *acl_shrinker; +static struct shrinker acl_shrinker = { + .shrink = nfs_access_cache_shrinker, + .seeks = DEFAULT_SEEKS, +}; /* * Register the NFS filesystems @@ -321,7 +324,7 @@ int __init register_nfs_fs(void) if (ret < 0) goto error_2; #endif - acl_shrinker = set_shrinker(DEFAULT_SEEKS, nfs_access_cache_shrinker); + register_shrinker(&acl_shrinker); return 0; #ifdef CONFIG_NFS_V4 @@ -339,8 +342,7 @@ error_0: */ void __exit unregister_nfs_fs(void) { - if (acl_shrinker != NULL) - remove_shrinker(acl_shrinker); + unregister_shrinker(&acl_shrinker); #ifdef CONFIG_NFS_V4 unregister_filesystem(&nfs4_fs_type); nfs_unregister_sysctl(); diff --git a/fs/nfsctl.c b/fs/nfsctl.c index c043136a82ca..51f1b31acbf6 100644 --- a/fs/nfsctl.c +++ b/fs/nfsctl.c @@ -23,19 +23,15 @@ static struct file *do_open(char *name, int flags) { struct nameidata nd; + struct vfsmount *mnt; int error; - nd.mnt = do_kern_mount("nfsd", 0, "nfsd", NULL); + mnt = do_kern_mount("nfsd", 0, "nfsd", NULL); + if (IS_ERR(mnt)) + return (struct file *)mnt; - if (IS_ERR(nd.mnt)) - return (struct file *)nd.mnt; - - nd.dentry = dget(nd.mnt->mnt_root); - nd.last_type = LAST_ROOT; - nd.flags = 0; - nd.depth = 0; - - error = path_walk(name, &nd); + error = vfs_path_lookup(mnt->mnt_root, mnt, name, 0, &nd); + mntput(mnt); /* drop do_kern_mount reference */ if (error) return ERR_PTR(error); diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c index 6e92b0fe5323..21928056e35e 100644 --- a/fs/nfsd/auth.c +++ b/fs/nfsd/auth.c @@ -9,20 +9,35 @@ #include <linux/sunrpc/svc.h> #include <linux/sunrpc/svcauth.h> #include <linux/nfsd/nfsd.h> +#include <linux/nfsd/export.h> #define CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE)) +int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp) +{ + struct exp_flavor_info *f; + struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors; + + for (f = exp->ex_flavors; f < end; f++) { + if (f->pseudoflavor == rqstp->rq_flavor) + return f->flags; + } + return exp->ex_flags; + +} + int nfsd_setuser(struct svc_rqst *rqstp, struct svc_export *exp) { struct svc_cred cred = rqstp->rq_cred; int i; + int flags = nfsexp_flags(rqstp, exp); int ret; - if (exp->ex_flags & NFSEXP_ALLSQUASH) { + if (flags & NFSEXP_ALLSQUASH) { cred.cr_uid = exp->ex_anon_uid; cred.cr_gid = exp->ex_anon_gid; cred.cr_group_info = groups_alloc(0); - } else if (exp->ex_flags & NFSEXP_ROOTSQUASH) { + } else if (flags & NFSEXP_ROOTSQUASH) { struct group_info *gi; if (!cred.cr_uid) cred.cr_uid = exp->ex_anon_uid; diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index 79bd03b8bbf8..6ab8de40904c 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -26,12 +26,15 @@ #include <linux/mount.h> #include <linux/hash.h> #include <linux/module.h> +#include <linux/exportfs.h> #include <linux/sunrpc/svc.h> #include <linux/nfsd/nfsd.h> #include <linux/nfsd/nfsfh.h> #include <linux/nfsd/syscall.h> #include <linux/lockd/bind.h> +#include <linux/sunrpc/msg_prot.h> +#include <linux/sunrpc/gss_api.h> #define NFSDDBG_FACILITY NFSDDBG_EXPORT @@ -451,8 +454,48 @@ out_free_all: return err; } +static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp) +{ + int listsize, err; + struct exp_flavor_info *f; + + err = get_int(mesg, &listsize); + if (err) + return err; + if (listsize < 0 || listsize > MAX_SECINFO_LIST) + return -EINVAL; + + for (f = exp->ex_flavors; f < exp->ex_flavors + listsize; f++) { + err = get_int(mesg, &f->pseudoflavor); + if (err) + return err; + /* + * Just a quick sanity check; we could also try to check + * whether this pseudoflavor is supported, but at worst + * an unsupported pseudoflavor on the export would just + * be a pseudoflavor that won't match the flavor of any + * authenticated request. The administrator will + * probably discover the problem when someone fails to + * authenticate. + */ + if (f->pseudoflavor < 0) + return -EINVAL; + err = get_int(mesg, &f->flags); + if (err) + return err; + /* Only some flags are allowed to differ between flavors: */ + if (~NFSEXP_SECINFO_FLAGS & (f->flags ^ exp->ex_flags)) + return -EINVAL; + } + exp->ex_nflavors = listsize; + return 0; +} + #else /* CONFIG_NFSD_V4 */ -static inline int fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc) { return 0; } +static inline int +fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc){return 0;} +static inline int +secinfo_parse(char **mesg, char *buf, struct svc_export *exp) { return 0; } #endif static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen) @@ -476,6 +519,9 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen) exp.ex_uuid = NULL; + /* secinfo */ + exp.ex_nflavors = 0; + if (mesg[mlen-1] != '\n') return -EINVAL; mesg[mlen-1] = 0; @@ -553,7 +599,9 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen) if (exp.ex_uuid == NULL) err = -ENOMEM; } - } else + } else if (strcmp(buf, "secinfo") == 0) + err = secinfo_parse(&mesg, buf, &exp); + else /* quietly ignore unknown words and anything * following. Newer user-space can try to set * new values, then see what the result was. @@ -593,6 +641,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen) static void exp_flags(struct seq_file *m, int flag, int fsid, uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fslocs); +static void show_secinfo(struct seq_file *m, struct svc_export *exp); static int svc_export_show(struct seq_file *m, struct cache_detail *cd, @@ -622,6 +671,7 @@ static int svc_export_show(struct seq_file *m, seq_printf(m, "%02x", exp->ex_uuid[i]); } } + show_secinfo(m, exp); } seq_puts(m, ")\n"); return 0; @@ -654,6 +704,7 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem) { struct svc_export *new = container_of(cnew, struct svc_export, h); struct svc_export *item = container_of(citem, struct svc_export, h); + int i; new->ex_flags = item->ex_flags; new->ex_anon_uid = item->ex_anon_uid; @@ -669,6 +720,10 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem) item->ex_fslocs.locations_count = 0; new->ex_fslocs.migrated = item->ex_fslocs.migrated; item->ex_fslocs.migrated = 0; + new->ex_nflavors = item->ex_nflavors; + for (i = 0; i < MAX_SECINFO_LIST; i++) { + new->ex_flavors[i] = item->ex_flavors[i]; + } } static struct cache_head *svc_export_alloc(void) @@ -738,16 +793,18 @@ exp_find_key(svc_client *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp) int err; if (!clp) - return NULL; + return ERR_PTR(-ENOENT); key.ek_client = clp; key.ek_fsidtype = fsid_type; memcpy(key.ek_fsid, fsidv, key_len(fsid_type)); ek = svc_expkey_lookup(&key); - if (ek != NULL) - if ((err = cache_check(&svc_expkey_cache, &ek->h, reqp))) - ek = ERR_PTR(err); + if (ek == NULL) + return ERR_PTR(-ENOMEM); + err = cache_check(&svc_expkey_cache, &ek->h, reqp); + if (err) + return ERR_PTR(err); return ek; } @@ -808,30 +865,21 @@ exp_get_by_name(svc_client *clp, struct vfsmount *mnt, struct dentry *dentry, struct cache_req *reqp) { struct svc_export *exp, key; + int err; if (!clp) - return NULL; + return ERR_PTR(-ENOENT); key.ex_client = clp; key.ex_mnt = mnt; key.ex_dentry = dentry; exp = svc_export_lookup(&key); - if (exp != NULL) { - int err; - - err = cache_check(&svc_export_cache, &exp->h, reqp); - switch (err) { - case 0: break; - case -EAGAIN: - case -ETIMEDOUT: - exp = ERR_PTR(err); - break; - default: - exp = NULL; - } - } - + if (exp == NULL) + return ERR_PTR(-ENOMEM); + err = cache_check(&svc_export_cache, &exp->h, reqp); + if (err) + return ERR_PTR(err); return exp; } @@ -847,7 +895,7 @@ exp_parent(svc_client *clp, struct vfsmount *mnt, struct dentry *dentry, dget(dentry); exp = exp_get_by_name(clp, mnt, dentry, reqp); - while (exp == NULL && !IS_ROOT(dentry)) { + while (PTR_ERR(exp) == -ENOENT && !IS_ROOT(dentry)) { struct dentry *parent; parent = dget_parent(dentry); @@ -900,7 +948,7 @@ static void exp_fsid_unhash(struct svc_export *exp) return; ek = exp_get_fsid_key(exp->ex_client, exp->ex_fsid); - if (ek && !IS_ERR(ek)) { + if (!IS_ERR(ek)) { ek->h.expiry_time = get_seconds()-1; cache_put(&ek->h, &svc_expkey_cache); } @@ -938,7 +986,7 @@ static void exp_unhash(struct svc_export *exp) struct inode *inode = exp->ex_dentry->d_inode; ek = exp_get_key(exp->ex_client, inode->i_sb->s_dev, inode->i_ino); - if (ek && !IS_ERR(ek)) { + if (!IS_ERR(ek)) { ek->h.expiry_time = get_seconds()-1; cache_put(&ek->h, &svc_expkey_cache); } @@ -989,13 +1037,12 @@ exp_export(struct nfsctl_export *nxp) /* must make sure there won't be an ex_fsid clash */ if ((nxp->ex_flags & NFSEXP_FSID) && - (fsid_key = exp_get_fsid_key(clp, nxp->ex_dev)) && - !IS_ERR(fsid_key) && + (!IS_ERR(fsid_key = exp_get_fsid_key(clp, nxp->ex_dev))) && fsid_key->ek_mnt && (fsid_key->ek_mnt != nd.mnt || fsid_key->ek_dentry != nd.dentry) ) goto finish; - if (exp) { + if (!IS_ERR(exp)) { /* just a flags/id/fsid update */ exp_fsid_unhash(exp); @@ -1104,7 +1151,7 @@ exp_unexport(struct nfsctl_export *nxp) err = -EINVAL; exp = exp_get_by_name(dom, nd.mnt, nd.dentry, NULL); path_release(&nd); - if (!exp) + if (IS_ERR(exp)) goto out_domain; exp_do_unexport(exp); @@ -1149,10 +1196,6 @@ exp_rootfh(svc_client *clp, char *path, struct knfsd_fh *f, int maxsize) err = PTR_ERR(exp); goto out; } - if (!exp) { - dprintk("nfsd: exp_rootfh export not found.\n"); - goto out; - } /* * fh must be initialized before calling fh_compose @@ -1176,17 +1219,130 @@ exp_find(struct auth_domain *clp, int fsid_type, u32 *fsidv, { struct svc_export *exp; struct svc_expkey *ek = exp_find_key(clp, fsid_type, fsidv, reqp); - if (!ek || IS_ERR(ek)) + if (IS_ERR(ek)) return ERR_PTR(PTR_ERR(ek)); exp = exp_get_by_name(clp, ek->ek_mnt, ek->ek_dentry, reqp); cache_put(&ek->h, &svc_expkey_cache); - if (!exp || IS_ERR(exp)) + if (IS_ERR(exp)) return ERR_PTR(PTR_ERR(exp)); return exp; } +__be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp) +{ + struct exp_flavor_info *f; + struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors; + + /* legacy gss-only clients are always OK: */ + if (exp->ex_client == rqstp->rq_gssclient) + return 0; + /* ip-address based client; check sec= export option: */ + for (f = exp->ex_flavors; f < end; f++) { + if (f->pseudoflavor == rqstp->rq_flavor) + return 0; + } + /* defaults in absence of sec= options: */ + if (exp->ex_nflavors == 0) { + if (rqstp->rq_flavor == RPC_AUTH_NULL || + rqstp->rq_flavor == RPC_AUTH_UNIX) + return 0; + } + return nfserr_wrongsec; +} + +/* + * Uses rq_client and rq_gssclient to find an export; uses rq_client (an + * auth_unix client) if it's available and has secinfo information; + * otherwise, will try to use rq_gssclient. + * + * Called from functions that handle requests; functions that do work on + * behalf of mountd are passed a single client name to use, and should + * use exp_get_by_name() or exp_find(). + */ +struct svc_export * +rqst_exp_get_by_name(struct svc_rqst *rqstp, struct vfsmount *mnt, + struct dentry *dentry) +{ + struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT); + + if (rqstp->rq_client == NULL) + goto gss; + + /* First try the auth_unix client: */ + exp = exp_get_by_name(rqstp->rq_client, mnt, dentry, + &rqstp->rq_chandle); + if (PTR_ERR(exp) == -ENOENT) + goto gss; + if (IS_ERR(exp)) + return exp; + /* If it has secinfo, assume there are no gss/... clients */ + if (exp->ex_nflavors > 0) + return exp; +gss: + /* Otherwise, try falling back on gss client */ + if (rqstp->rq_gssclient == NULL) + return exp; + gssexp = exp_get_by_name(rqstp->rq_gssclient, mnt, dentry, + &rqstp->rq_chandle); + if (PTR_ERR(gssexp) == -ENOENT) + return exp; + if (!IS_ERR(exp)) + exp_put(exp); + return gssexp; +} + +struct svc_export * +rqst_exp_find(struct svc_rqst *rqstp, int fsid_type, u32 *fsidv) +{ + struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT); + + if (rqstp->rq_client == NULL) + goto gss; + + /* First try the auth_unix client: */ + exp = exp_find(rqstp->rq_client, fsid_type, fsidv, &rqstp->rq_chandle); + if (PTR_ERR(exp) == -ENOENT) + goto gss; + if (IS_ERR(exp)) + return exp; + /* If it has secinfo, assume there are no gss/... clients */ + if (exp->ex_nflavors > 0) + return exp; +gss: + /* Otherwise, try falling back on gss client */ + if (rqstp->rq_gssclient == NULL) + return exp; + gssexp = exp_find(rqstp->rq_gssclient, fsid_type, fsidv, + &rqstp->rq_chandle); + if (PTR_ERR(gssexp) == -ENOENT) + return exp; + if (!IS_ERR(exp)) + exp_put(exp); + return gssexp; +} + +struct svc_export * +rqst_exp_parent(struct svc_rqst *rqstp, struct vfsmount *mnt, + struct dentry *dentry) +{ + struct svc_export *exp; + + dget(dentry); + exp = rqst_exp_get_by_name(rqstp, mnt, dentry); + + while (PTR_ERR(exp) == -ENOENT && !IS_ROOT(dentry)) { + struct dentry *parent; + + parent = dget_parent(dentry); + dput(dentry); + dentry = parent; + exp = rqst_exp_get_by_name(rqstp, mnt, dentry); + } + dput(dentry); + return exp; +} /* * Called when we need the filehandle for the root of the pseudofs, @@ -1194,8 +1350,7 @@ exp_find(struct auth_domain *clp, int fsid_type, u32 *fsidv, * export point with fsid==0 */ __be32 -exp_pseudoroot(struct auth_domain *clp, struct svc_fh *fhp, - struct cache_req *creq) +exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp) { struct svc_export *exp; __be32 rv; @@ -1203,12 +1358,16 @@ exp_pseudoroot(struct auth_domain *clp, struct svc_fh *fhp, mk_fsid(FSID_NUM, fsidv, 0, 0, 0, NULL); - exp = exp_find(clp, FSID_NUM, fsidv, creq); + exp = rqst_exp_find(rqstp, FSID_NUM, fsidv); + if (PTR_ERR(exp) == -ENOENT) + return nfserr_perm; if (IS_ERR(exp)) return nfserrno(PTR_ERR(exp)); - if (exp == NULL) - return nfserr_perm; rv = fh_compose(fhp, exp, exp->ex_dentry, NULL); + if (rv) + goto out; + rv = check_nfsd_access(exp, rqstp); +out: exp_put(exp); return rv; } @@ -1296,28 +1455,62 @@ static struct flags { { 0, {"", ""}} }; -static void exp_flags(struct seq_file *m, int flag, int fsid, - uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fsloc) +static void show_expflags(struct seq_file *m, int flags, int mask) { - int first = 0; struct flags *flg; + int state, first = 0; for (flg = expflags; flg->flag; flg++) { - int state = (flg->flag & flag)?0:1; + if (flg->flag & ~mask) + continue; + state = (flg->flag & flags) ? 0 : 1; if (*flg->name[state]) seq_printf(m, "%s%s", first++?",":"", flg->name[state]); } +} + +static void show_secinfo_flags(struct seq_file *m, int flags) +{ + seq_printf(m, ","); + show_expflags(m, flags, NFSEXP_SECINFO_FLAGS); +} + +static void show_secinfo(struct seq_file *m, struct svc_export *exp) +{ + struct exp_flavor_info *f; + struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors; + int lastflags = 0, first = 0; + + if (exp->ex_nflavors == 0) + return; + for (f = exp->ex_flavors; f < end; f++) { + if (first || f->flags != lastflags) { + if (!first) + show_secinfo_flags(m, lastflags); + seq_printf(m, ",sec=%d", f->pseudoflavor); + lastflags = f->flags; + } else { + seq_printf(m, ":%d", f->pseudoflavor); + } + } + show_secinfo_flags(m, lastflags); +} + +static void exp_flags(struct seq_file *m, int flag, int fsid, + uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fsloc) +{ + show_expflags(m, flag, NFSEXP_ALLFLAGS); if (flag & NFSEXP_FSID) - seq_printf(m, "%sfsid=%d", first++?",":"", fsid); + seq_printf(m, ",fsid=%d", fsid); if (anonu != (uid_t)-2 && anonu != (0x10000-2)) - seq_printf(m, "%sanonuid=%d", first++?",":"", anonu); + seq_printf(m, ",sanonuid=%d", anonu); if (anong != (gid_t)-2 && anong != (0x10000-2)) - seq_printf(m, "%sanongid=%d", first++?",":"", anong); + seq_printf(m, ",sanongid=%d", anong); if (fsloc && fsloc->locations_count > 0) { char *loctype = (fsloc->migrated) ? "refer" : "replicas"; int i; - seq_printf(m, "%s%s=", first++?",":"", loctype); + seq_printf(m, ",%s=", loctype); seq_escape(m, fsloc->locations[0].path, ",;@ \t\n\\"); seq_putc(m, '@'); seq_escape(m, fsloc->locations[0].hosts, ",;@ \t\n\\"); diff --git a/fs/nfsd/lockd.c b/fs/nfsd/lockd.c index 221acd1f11f6..9e4a568a5013 100644 --- a/fs/nfsd/lockd.c +++ b/fs/nfsd/lockd.c @@ -65,6 +65,7 @@ nlm_fclose(struct file *filp) static struct nlmsvc_binding nfsd_nlm_ops = { .fopen = nlm_fopen, /* open file for locking */ .fclose = nlm_fclose, /* close file */ + .get_grace_period = get_nfs4_grace_period, }; void diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c index cc3b7badd486..b6ed38380ab8 100644 --- a/fs/nfsd/nfs4acl.c +++ b/fs/nfsd/nfs4acl.c @@ -183,8 +183,13 @@ static void summarize_posix_acl(struct posix_acl *acl, struct posix_acl_summary *pas) { struct posix_acl_entry *pa, *pe; - pas->users = 0; - pas->groups = 0; + + /* + * Only pas.users and pas.groups need initialization; previous + * posix_acl_valid() calls ensure that the other fields will be + * initialized in the following loop. But, just to placate gcc: + */ + memset(pas, 0, sizeof(*pas)); pas->mask = 07; pe = acl->a_entries + acl->a_count; @@ -732,13 +737,16 @@ int nfs4_acl_nfsv4_to_posix(struct nfs4_acl *acl, struct posix_acl **pacl, *pacl = posix_state_to_acl(&effective_acl_state, flags); if (IS_ERR(*pacl)) { ret = PTR_ERR(*pacl); + *pacl = NULL; goto out_dstate; } *dpacl = posix_state_to_acl(&default_acl_state, flags | NFS4_ACL_TYPE_DEFAULT); if (IS_ERR(*dpacl)) { ret = PTR_ERR(*dpacl); + *dpacl = NULL; posix_acl_release(*pacl); + *pacl = NULL; goto out_dstate; } sort_pacl(*pacl); diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index 5443c52b57aa..31d6633c7fe4 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -75,7 +75,7 @@ enum nfs_cb_opnum4 { #define op_enc_sz 1 #define op_dec_sz 2 #define enc_nfs4_fh_sz (1 + (NFS4_FHSIZE >> 2)) -#define enc_stateid_sz 16 +#define enc_stateid_sz (NFS4_STATEID_SIZE >> 2) #define NFS4_enc_cb_recall_sz (cb_compound_enc_hdr_sz + \ 1 + enc_stateid_sz + \ enc_nfs4_fh_sz) diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index 45aa21ce6784..2cf9a9a2d89c 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -587,6 +587,15 @@ idmap_lookup(struct svc_rqst *rqstp, return ret; } +static char * +rqst_authname(struct svc_rqst *rqstp) +{ + struct auth_domain *clp; + + clp = rqstp->rq_gssclient ? rqstp->rq_gssclient : rqstp->rq_client; + return clp->name; +} + static int idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen, uid_t *id) @@ -600,7 +609,7 @@ idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen return -EINVAL; memcpy(key.name, name, namelen); key.name[namelen] = '\0'; - strlcpy(key.authname, rqstp->rq_client->name, sizeof(key.authname)); + strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname)); ret = idmap_lookup(rqstp, nametoid_lookup, &key, &nametoid_cache, &item); if (ret == -ENOENT) ret = -ESRCH; /* nfserr_badname */ @@ -620,7 +629,7 @@ idmap_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name) }; int ret; - strlcpy(key.authname, rqstp->rq_client->name, sizeof(key.authname)); + strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname)); ret = idmap_lookup(rqstp, idtoname_lookup, &key, &idtoname_cache, &item); if (ret == -ENOENT) return sprintf(name, "%u", id); diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 8522729830db..3c627128e205 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -47,6 +47,7 @@ #include <linux/nfsd/state.h> #include <linux/nfsd/xdr4.h> #include <linux/nfs4_acl.h> +#include <linux/sunrpc/gss_api.h> #define NFSDDBG_FACILITY NFSDDBG_PROC @@ -286,8 +287,7 @@ nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, __be32 status; fh_put(&cstate->current_fh); - status = exp_pseudoroot(rqstp->rq_client, &cstate->current_fh, - &rqstp->rq_chandle); + status = exp_pseudoroot(rqstp, &cstate->current_fh); return status; } @@ -474,8 +474,8 @@ nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, __be32 ret; fh_init(&tmp_fh, NFS4_FHSIZE); - if((ret = exp_pseudoroot(rqstp->rq_client, &tmp_fh, - &rqstp->rq_chandle)) != 0) + ret = exp_pseudoroot(rqstp, &tmp_fh); + if (ret) return ret; if (tmp_fh.fh_dentry == cstate->current_fh.fh_dentry) { fh_put(&tmp_fh); @@ -611,6 +611,30 @@ nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, } static __be32 +nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, + struct nfsd4_secinfo *secinfo) +{ + struct svc_fh resfh; + struct svc_export *exp; + struct dentry *dentry; + __be32 err; + + fh_init(&resfh, NFS4_FHSIZE); + err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, + secinfo->si_name, secinfo->si_namelen, + &exp, &dentry); + if (err) + return err; + if (dentry->d_inode == NULL) { + exp_put(exp); + err = nfserr_noent; + } else + secinfo->si_exp = exp; + dput(dentry); + return err; +} + +static __be32 nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_setattr *setattr) { @@ -1009,6 +1033,9 @@ static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = { [OP_SAVEFH] = { .op_func = (nfsd4op_func)nfsd4_savefh, }, + [OP_SECINFO] = { + .op_func = (nfsd4op_func)nfsd4_secinfo, + }, [OP_SETATTR] = { .op_func = (nfsd4op_func)nfsd4_setattr, }, diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 8c52913d7cb6..6284807bd37e 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -49,8 +49,10 @@ #include <linux/nfsd/state.h> #include <linux/nfsd/xdr4.h> #include <linux/namei.h> +#include <linux/swap.h> #include <linux/mutex.h> #include <linux/lockd/bind.h> +#include <linux/module.h> #define NFSDDBG_FACILITY NFSDDBG_PROC @@ -149,6 +151,7 @@ get_nfs4_file(struct nfs4_file *fi) } static int num_delegations; +unsigned int max_delegations; /* * Open owner state (share locks) @@ -192,7 +195,9 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f struct nfs4_callback *cb = &stp->st_stateowner->so_client->cl_callback; dprintk("NFSD alloc_init_deleg\n"); - if (num_delegations > STATEID_HASH_SIZE * 4) + if (fp->fi_had_conflict) + return NULL; + if (num_delegations > max_delegations) return NULL; dp = kmem_cache_alloc(deleg_slab, GFP_KERNEL); if (dp == NULL) @@ -251,7 +256,7 @@ nfs4_close_delegation(struct nfs4_delegation *dp) /* The following nfsd_close may not actually close the file, * but we want to remove the lease in any case. */ if (dp->dl_flock) - setlease(filp, F_UNLCK, &dp->dl_flock); + vfs_setlease(filp, F_UNLCK, &dp->dl_flock); nfsd_close(filp); } @@ -999,6 +1004,7 @@ alloc_init_file(struct inode *ino) list_add(&fp->fi_hash, &file_hashtbl[hashval]); fp->fi_inode = igrab(ino); fp->fi_id = current_fileid++; + fp->fi_had_conflict = false; return fp; } return NULL; @@ -1325,6 +1331,7 @@ do_recall(void *__dp) { struct nfs4_delegation *dp = __dp; + dp->dl_file->fi_had_conflict = true; nfsd4_cb_recall(dp); return 0; } @@ -1395,7 +1402,7 @@ void nfsd_release_deleg_cb(struct file_lock *fl) /* * Set the delegation file_lock back pointer. * - * Called from __setlease() with lock_kernel() held. + * Called from setlease() with lock_kernel() held. */ static void nfsd_copy_lock_deleg_cb(struct file_lock *new, struct file_lock *fl) @@ -1409,7 +1416,7 @@ void nfsd_copy_lock_deleg_cb(struct file_lock *new, struct file_lock *fl) } /* - * Called from __setlease() with lock_kernel() held + * Called from setlease() with lock_kernel() held */ static int nfsd_same_client_deleg_cb(struct file_lock *onlist, struct file_lock *try) @@ -1709,10 +1716,10 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta fl.fl_file = stp->st_vfs_file; fl.fl_pid = current->tgid; - /* setlease checks to see if delegation should be handed out. + /* vfs_setlease checks to see if delegation should be handed out. * the lock_manager callbacks fl_mylease and fl_change are used */ - if ((status = setlease(stp->st_vfs_file, + if ((status = vfs_setlease(stp->st_vfs_file, flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK, &flp))) { dprintk("NFSD: setlease failed [%d], no delegation\n", status); unhash_delegation(dp); @@ -3190,20 +3197,49 @@ nfsd4_load_reboot_recovery_data(void) printk("NFSD: Failure reading reboot recovery data\n"); } +unsigned long +get_nfs4_grace_period(void) +{ + return max(user_lease_time, lease_time) * HZ; +} + +/* + * Since the lifetime of a delegation isn't limited to that of an open, a + * client may quite reasonably hang on to a delegation as long as it has + * the inode cached. This becomes an obvious problem the first time a + * client's inode cache approaches the size of the server's total memory. + * + * For now we avoid this problem by imposing a hard limit on the number + * of delegations, which varies according to the server's memory size. + */ +static void +set_max_delegations(void) +{ + /* + * Allow at most 4 delegations per megabyte of RAM. Quick + * estimates suggest that in the worst case (where every delegation + * is for a different inode), a delegation could take about 1.5K, + * giving a worst case usage of about 6% of memory. + */ + max_delegations = nr_free_buffer_pages() >> (20 - 2 - PAGE_SHIFT); +} + /* initialization to perform when the nfsd service is started: */ static void __nfs4_state_start(void) { - time_t grace_time; + unsigned long grace_time; boot_time = get_seconds(); - grace_time = max(user_lease_time, lease_time); + grace_time = get_nfs_grace_period(); lease_time = user_lease_time; in_grace = 1; - printk("NFSD: starting %ld-second grace period\n", grace_time); + printk(KERN_INFO "NFSD: starting %ld-second grace period\n", + grace_time/HZ); laundry_wq = create_singlethread_workqueue("nfsd4"); - queue_delayed_work(laundry_wq, &laundromat_work, grace_time*HZ); + queue_delayed_work(laundry_wq, &laundromat_work, grace_time); + set_max_delegations(); } int diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 15809dfd88a5..b3d55c6747fd 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -56,6 +56,8 @@ #include <linux/nfsd_idmap.h> #include <linux/nfs4.h> #include <linux/nfs4_acl.h> +#include <linux/sunrpc/gss_api.h> +#include <linux/sunrpc/svcauth_gss.h> #define NFSDDBG_FACILITY NFSDDBG_XDR @@ -819,6 +821,23 @@ nfsd4_decode_renew(struct nfsd4_compoundargs *argp, clientid_t *clientid) } static __be32 +nfsd4_decode_secinfo(struct nfsd4_compoundargs *argp, + struct nfsd4_secinfo *secinfo) +{ + DECODE_HEAD; + + READ_BUF(4); + READ32(secinfo->si_namelen); + READ_BUF(secinfo->si_namelen); + SAVEMEM(secinfo->si_name, secinfo->si_namelen); + status = check_filename(secinfo->si_name, secinfo->si_namelen, + nfserr_noent); + if (status) + return status; + DECODE_TAIL; +} + +static __be32 nfsd4_decode_setattr(struct nfsd4_compoundargs *argp, struct nfsd4_setattr *setattr) { DECODE_HEAD; @@ -1131,6 +1150,9 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp) case OP_SAVEFH: op->status = nfs_ok; break; + case OP_SECINFO: + op->status = nfsd4_decode_secinfo(argp, &op->u.secinfo); + break; case OP_SETATTR: op->status = nfsd4_decode_setattr(argp, &op->u.setattr); break; @@ -1296,7 +1318,7 @@ static char *nfsd4_path(struct svc_rqst *rqstp, struct svc_export *exp, __be32 * char *path, *rootpath; fh_init(&tmp_fh, NFS4_FHSIZE); - *stat = exp_pseudoroot(rqstp->rq_client, &tmp_fh, &rqstp->rq_chandle); + *stat = exp_pseudoroot(rqstp, &tmp_fh); if (*stat) return NULL; rootpath = tmp_fh.fh_export->ex_path; @@ -1847,11 +1869,19 @@ nfsd4_encode_dirent_fattr(struct nfsd4_readdir *cd, if (d_mountpoint(dentry)) { int err; + /* + * Why the heck aren't we just using nfsd_lookup?? + * Different "."/".." handling? Something else? + * At least, add a comment here to explain.... + */ err = nfsd_cross_mnt(cd->rd_rqstp, &dentry, &exp); if (err) { nfserr = nfserrno(err); goto out_put; } + nfserr = check_nfsd_access(exp, cd->rd_rqstp); + if (nfserr) + goto out_put; } nfserr = nfsd4_encode_fattr(NULL, exp, dentry, p, buflen, cd->rd_bmval, @@ -2419,6 +2449,72 @@ nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_ } } +static void +nfsd4_encode_secinfo(struct nfsd4_compoundres *resp, int nfserr, + struct nfsd4_secinfo *secinfo) +{ + int i = 0; + struct svc_export *exp = secinfo->si_exp; + u32 nflavs; + struct exp_flavor_info *flavs; + struct exp_flavor_info def_flavs[2]; + ENCODE_HEAD; + + if (nfserr) + goto out; + if (exp->ex_nflavors) { + flavs = exp->ex_flavors; + nflavs = exp->ex_nflavors; + } else { /* Handling of some defaults in absence of real secinfo: */ + flavs = def_flavs; + if (exp->ex_client->flavour->flavour == RPC_AUTH_UNIX) { + nflavs = 2; + flavs[0].pseudoflavor = RPC_AUTH_UNIX; + flavs[1].pseudoflavor = RPC_AUTH_NULL; + } else if (exp->ex_client->flavour->flavour == RPC_AUTH_GSS) { + nflavs = 1; + flavs[0].pseudoflavor + = svcauth_gss_flavor(exp->ex_client); + } else { + nflavs = 1; + flavs[0].pseudoflavor + = exp->ex_client->flavour->flavour; + } + } + + RESERVE_SPACE(4); + WRITE32(nflavs); + ADJUST_ARGS(); + for (i = 0; i < nflavs; i++) { + u32 flav = flavs[i].pseudoflavor; + struct gss_api_mech *gm = gss_mech_get_by_pseudoflavor(flav); + + if (gm) { + RESERVE_SPACE(4); + WRITE32(RPC_AUTH_GSS); + ADJUST_ARGS(); + RESERVE_SPACE(4 + gm->gm_oid.len); + WRITE32(gm->gm_oid.len); + WRITEMEM(gm->gm_oid.data, gm->gm_oid.len); + ADJUST_ARGS(); + RESERVE_SPACE(4); + WRITE32(0); /* qop */ + ADJUST_ARGS(); + RESERVE_SPACE(4); + WRITE32(gss_pseudoflavor_to_service(gm, flav)); + ADJUST_ARGS(); + gss_mech_put(gm); + } else { + RESERVE_SPACE(4); + WRITE32(flav); + ADJUST_ARGS(); + } + } +out: + if (exp) + exp_put(exp); +} + /* * The SETATTR encode routine is special -- it always encodes a bitmap, * regardless of the error status. @@ -2559,6 +2655,9 @@ nfsd4_encode_operation(struct nfsd4_compoundres *resp, struct nfsd4_op *op) break; case OP_SAVEFH: break; + case OP_SECINFO: + nfsd4_encode_secinfo(resp, op->status, &op->u.secinfo); + break; case OP_SETATTR: nfsd4_encode_setattr(resp, op->status, &op->u.setattr); break; diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 71c686dc7257..baac89d917ca 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -35,7 +35,6 @@ #include <linux/nfsd/cache.h> #include <linux/nfsd/xdr.h> #include <linux/nfsd/syscall.h> -#include <linux/nfsd/interface.h> #include <asm/uaccess.h> @@ -245,7 +244,7 @@ static ssize_t write_getfs(struct file *file, char *buf, size_t size) } exp_readunlock(); if (err == 0) - err = res->fh_size + (int)&((struct knfsd_fh*)0)->fh_base; + err = res->fh_size + offsetof(struct knfsd_fh, fh_base); out: return err; } diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index 6ca2d24fc216..0eb464a39aae 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -15,10 +15,12 @@ #include <linux/string.h> #include <linux/stat.h> #include <linux/dcache.h> +#include <linux/exportfs.h> #include <linux/mount.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/svc.h> +#include <linux/sunrpc/svcauth_gss.h> #include <linux/nfsd/nfsd.h> #define NFSDDBG_FACILITY NFSDDBG_FH @@ -27,10 +29,6 @@ static int nfsd_nr_verified; static int nfsd_nr_put; -extern struct export_operations export_op_default; - -#define CALL(ops,fun) ((ops->fun)?(ops->fun):export_op_default.fun) - /* * our acceptability function. * if NOSUBTREECHECK, accept anything @@ -123,8 +121,6 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) int data_left = fh->fh_size/4; error = nfserr_stale; - if (rqstp->rq_client == NULL) - goto out; if (rqstp->rq_vers > 2) error = nfserr_badhandle; if (rqstp->rq_vers == 4 && fh->fh_size == 0) @@ -148,7 +144,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) fh->fh_fsid[1] = fh->fh_fsid[2]; } if ((data_left -= len)<0) goto out; - exp = exp_find(rqstp->rq_client, fh->fh_fsid_type, datap, &rqstp->rq_chandle); + exp = rqst_exp_find(rqstp, fh->fh_fsid_type, datap); datap += len; } else { dev_t xdev; @@ -159,19 +155,17 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) xdev = old_decode_dev(fh->ofh_xdev); xino = u32_to_ino_t(fh->ofh_xino); mk_fsid(FSID_DEV, tfh, xdev, xino, 0, NULL); - exp = exp_find(rqstp->rq_client, FSID_DEV, tfh, - &rqstp->rq_chandle); + exp = rqst_exp_find(rqstp, FSID_DEV, tfh); } - if (IS_ERR(exp) && (PTR_ERR(exp) == -EAGAIN - || PTR_ERR(exp) == -ETIMEDOUT)) { - error = nfserrno(PTR_ERR(exp)); + error = nfserr_stale; + if (PTR_ERR(exp) == -ENOENT) goto out; - } - error = nfserr_stale; - if (!exp || IS_ERR(exp)) + if (IS_ERR(exp)) { + error = nfserrno(PTR_ERR(exp)); goto out; + } /* Check if the request originated from a secure port. */ error = nfserr_perm; @@ -211,11 +205,9 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) if (fileid_type == 0) dentry = dget(exp->ex_dentry); else { - struct export_operations *nop = exp->ex_mnt->mnt_sb->s_export_op; - dentry = CALL(nop,decode_fh)(exp->ex_mnt->mnt_sb, - datap, data_left, - fileid_type, - nfsd_acceptable, exp); + dentry = exportfs_decode_fh(exp->ex_mnt, datap, + data_left, fileid_type, + nfsd_acceptable, exp); } if (dentry == NULL) goto out; @@ -257,8 +249,19 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) if (error) goto out; + if (!(access & MAY_LOCK)) { + /* + * pseudoflavor restrictions are not enforced on NLM, + * which clients virtually always use auth_sys for, + * even while using RPCSEC_GSS for NFS. + */ + error = check_nfsd_access(exp, rqstp); + if (error) + goto out; + } + /* Finally, check access permissions. */ - error = nfsd_permission(exp, dentry, access); + error = nfsd_permission(rqstp, exp, dentry, access); if (error) { dprintk("fh_verify: %s/%s permission failure, " @@ -286,15 +289,13 @@ out: static inline int _fh_update(struct dentry *dentry, struct svc_export *exp, __u32 *datap, int *maxsize) { - struct export_operations *nop = exp->ex_mnt->mnt_sb->s_export_op; - if (dentry == exp->ex_dentry) { *maxsize = 0; return 0; } - return CALL(nop,encode_fh)(dentry, datap, maxsize, - !(exp->ex_flags&NFSEXP_NOSUBTREECHECK)); + return exportfs_encode_fh(dentry, datap, maxsize, + !(exp->ex_flags & NFSEXP_NOSUBTREECHECK)); } /* diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c index b2c7147aa921..977a71f64e19 100644 --- a/fs/nfsd/nfsproc.c +++ b/fs/nfsd/nfsproc.c @@ -278,7 +278,8 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp, * echo thing > device-special-file-or-pipe * by doing a CREATE with type==0 */ - nfserr = nfsd_permission(newfhp->fh_export, + nfserr = nfsd_permission(rqstp, + newfhp->fh_export, newfhp->fh_dentry, MAY_WRITE|MAY_LOCAL_ACCESS); if (nfserr && nfserr != nfserr_rofs) diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index ff55950efb43..a8c89ae4c743 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -19,6 +19,7 @@ #include <linux/slab.h> #include <linux/smp.h> #include <linux/smp_lock.h> +#include <linux/freezer.h> #include <linux/fs_struct.h> #include <linux/sunrpc/types.h> @@ -432,6 +433,7 @@ nfsd(struct svc_rqst *rqstp) * dirty pages. */ current->flags |= PF_LESS_THROTTLE; + set_freezable(); /* * The main request loop @@ -492,6 +494,15 @@ out: module_put_and_exit(0); } +static __be32 map_new_errors(u32 vers, __be32 nfserr) +{ + if (nfserr == nfserr_jukebox && vers == 2) + return nfserr_dropit; + if (nfserr == nfserr_wrongsec && vers < 4) + return nfserr_acces; + return nfserr; +} + int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp) { @@ -534,6 +545,7 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp) /* Now call the procedure handler, and encode NFS status. */ nfserr = proc->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp); + nfserr = map_new_errors(rqstp->rq_vers, nfserr); if (nfserr == nfserr_jukebox && rqstp->rq_vers == 2) nfserr = nfserr_dropit; if (nfserr == nfserr_dropit) { diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 945b1cedde2b..ee96a897a29e 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -113,21 +113,21 @@ nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp, while (follow_down(&mnt,&mounts)&&d_mountpoint(mounts)); - exp2 = exp_get_by_name(exp->ex_client, mnt, mounts, &rqstp->rq_chandle); + exp2 = rqst_exp_get_by_name(rqstp, mnt, mounts); if (IS_ERR(exp2)) { err = PTR_ERR(exp2); dput(mounts); mntput(mnt); goto out; } - if (exp2 && ((exp->ex_flags & NFSEXP_CROSSMOUNT) || EX_NOHIDE(exp2))) { + if ((exp->ex_flags & NFSEXP_CROSSMOUNT) || EX_NOHIDE(exp2)) { /* successfully crossed mount point */ exp_put(exp); *expp = exp2; dput(dentry); *dpp = mounts; } else { - if (exp2) exp_put(exp2); + exp_put(exp2); dput(mounts); } mntput(mnt); @@ -135,21 +135,10 @@ out: return err; } -/* - * Look up one component of a pathname. - * N.B. After this call _both_ fhp and resfh need an fh_put - * - * If the lookup would cross a mountpoint, and the mounted filesystem - * is exported to the client with NFSEXP_NOHIDE, then the lookup is - * accepted as it stands and the mounted directory is - * returned. Otherwise the covered directory is returned. - * NOTE: this mountpoint crossing is not supported properly by all - * clients and is explicitly disallowed for NFSv3 - * NeilBrown <neilb@cse.unsw.edu.au> - */ __be32 -nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name, - int len, struct svc_fh *resfh) +nfsd_lookup_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp, + const char *name, int len, + struct svc_export **exp_ret, struct dentry **dentry_ret) { struct svc_export *exp; struct dentry *dparent; @@ -168,8 +157,6 @@ nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name, exp = fhp->fh_export; exp_get(exp); - err = nfserr_acces; - /* Lookup the name, but don't follow links */ if (isdotent(name, len)) { if (len==1) @@ -190,17 +177,15 @@ nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name, dput(dentry); dentry = dp; - exp2 = exp_parent(exp->ex_client, mnt, dentry, - &rqstp->rq_chandle); - if (IS_ERR(exp2)) { + exp2 = rqst_exp_parent(rqstp, mnt, dentry); + if (PTR_ERR(exp2) == -ENOENT) { + dput(dentry); + dentry = dget(dparent); + } else if (IS_ERR(exp2)) { host_err = PTR_ERR(exp2); dput(dentry); mntput(mnt); goto out_nfserr; - } - if (!exp2) { - dput(dentry); - dentry = dget(dparent); } else { exp_put(exp); exp = exp2; @@ -223,6 +208,41 @@ nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name, } } } + *dentry_ret = dentry; + *exp_ret = exp; + return 0; + +out_nfserr: + exp_put(exp); + return nfserrno(host_err); +} + +/* + * Look up one component of a pathname. + * N.B. After this call _both_ fhp and resfh need an fh_put + * + * If the lookup would cross a mountpoint, and the mounted filesystem + * is exported to the client with NFSEXP_NOHIDE, then the lookup is + * accepted as it stands and the mounted directory is + * returned. Otherwise the covered directory is returned. + * NOTE: this mountpoint crossing is not supported properly by all + * clients and is explicitly disallowed for NFSv3 + * NeilBrown <neilb@cse.unsw.edu.au> + */ +__be32 +nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name, + int len, struct svc_fh *resfh) +{ + struct svc_export *exp; + struct dentry *dentry; + __be32 err; + + err = nfsd_lookup_dentry(rqstp, fhp, name, len, &exp, &dentry); + if (err) + return err; + err = check_nfsd_access(exp, rqstp); + if (err) + goto out; /* * Note: we compose the file handle now, but as the * dentry may be negative, it may need to be updated. @@ -230,16 +250,13 @@ nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name, err = fh_compose(resfh, exp, dentry, fhp); if (!err && !dentry->d_inode) err = nfserr_noent; - dput(dentry); out: + dput(dentry); exp_put(exp); return err; - -out_nfserr: - err = nfserrno(host_err); - goto out; } + /* * Set various file attributes. * N.B. After this call fhp needs an fh_put @@ -311,7 +328,7 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, /* The size case is special. It changes the file as well as the attributes. */ if (iap->ia_valid & ATTR_SIZE) { if (iap->ia_size < inode->i_size) { - err = nfsd_permission(fhp->fh_export, dentry, MAY_TRUNC|MAY_OWNER_OVERRIDE); + err = nfsd_permission(rqstp, fhp->fh_export, dentry, MAY_TRUNC|MAY_OWNER_OVERRIDE); if (err) goto out; } @@ -435,7 +452,7 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, /* Get inode */ error = fh_verify(rqstp, fhp, 0 /* S_IFREG */, MAY_SATTR); if (error) - goto out; + return error; dentry = fhp->fh_dentry; inode = dentry->d_inode; @@ -444,33 +461,25 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, host_error = nfs4_acl_nfsv4_to_posix(acl, &pacl, &dpacl, flags); if (host_error == -EINVAL) { - error = nfserr_attrnotsupp; - goto out; + return nfserr_attrnotsupp; } else if (host_error < 0) goto out_nfserr; host_error = set_nfsv4_acl_one(dentry, pacl, POSIX_ACL_XATTR_ACCESS); if (host_error < 0) - goto out_nfserr; + goto out_release; - if (S_ISDIR(inode->i_mode)) { + if (S_ISDIR(inode->i_mode)) host_error = set_nfsv4_acl_one(dentry, dpacl, POSIX_ACL_XATTR_DEFAULT); - if (host_error < 0) - goto out_nfserr; - } - error = nfs_ok; - -out: +out_release: posix_acl_release(pacl); posix_acl_release(dpacl); - return (error); out_nfserr: if (host_error == -EOPNOTSUPP) - error = nfserr_attrnotsupp; + return nfserr_attrnotsupp; else - error = nfserrno(host_error); - goto out; + return nfserrno(host_error); } static struct posix_acl * @@ -607,7 +616,7 @@ nfsd_access(struct svc_rqst *rqstp, struct svc_fh *fhp, u32 *access, u32 *suppor sresult |= map->access; - err2 = nfsd_permission(export, dentry, map->how); + err2 = nfsd_permission(rqstp, export, dentry, map->how); switch (err2) { case nfs_ok: result |= map->access; @@ -1034,7 +1043,7 @@ nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, __be32 err; if (file) { - err = nfsd_permission(fhp->fh_export, fhp->fh_dentry, + err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry, MAY_READ|MAY_OWNER_OVERRIDE); if (err) goto out; @@ -1063,7 +1072,7 @@ nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, __be32 err = 0; if (file) { - err = nfsd_permission(fhp->fh_export, fhp->fh_dentry, + err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry, MAY_WRITE|MAY_OWNER_OVERRIDE); if (err) goto out; @@ -1788,11 +1797,17 @@ nfsd_statfs(struct svc_rqst *rqstp, struct svc_fh *fhp, struct kstatfs *stat) return err; } +static int exp_rdonly(struct svc_rqst *rqstp, struct svc_export *exp) +{ + return nfsexp_flags(rqstp, exp) & NFSEXP_READONLY; +} + /* * Check for a user's access permissions to this inode. */ __be32 -nfsd_permission(struct svc_export *exp, struct dentry *dentry, int acc) +nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp, + struct dentry *dentry, int acc) { struct inode *inode = dentry->d_inode; int err; @@ -1823,7 +1838,7 @@ nfsd_permission(struct svc_export *exp, struct dentry *dentry, int acc) */ if (!(acc & MAY_LOCAL_ACCESS)) if (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC)) { - if (EX_RDONLY(exp) || IS_RDONLY(inode)) + if (exp_rdonly(rqstp, exp) || IS_RDONLY(inode)) return nfserr_rofs; if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode)) return nfserr_perm; @@ -1906,7 +1921,7 @@ nfsd_racache_init(int cache_size) raparm_hash[i].pb_head = NULL; spin_lock_init(&raparm_hash[i].pb_lock); } - nperbucket = cache_size >> RAPARM_HASH_BITS; + nperbucket = DIV_ROUND_UP(cache_size, RAPARM_HASH_SIZE); for (i = 0; i < cache_size - 1; i++) { if (i % nperbucket == 0) raparm_hash[j++].pb_head = raparml + i; diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c index bff01a54675a..e93c6142b23c 100644 --- a/fs/ntfs/namei.c +++ b/fs/ntfs/namei.c @@ -21,6 +21,7 @@ */ #include <linux/dcache.h> +#include <linux/exportfs.h> #include <linux/security.h> #include "attrib.h" diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 84bf6e79de23..460d440310f2 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -232,7 +232,7 @@ static int ocfs2_readpage(struct file *file, struct page *page) * might now be discovering a truncate that hit on another node. * block_read_full_page->get_block freaks out if it is asked to read * beyond the end of a file, so we check here. Callers - * (generic_file_read, fault->nopage) are clever enough to check i_size + * (generic_file_read, vm_ops->fault) are clever enough to check i_size * and notice that the page they just read isn't needed. * * XXX sys_readahead() seems to get that wrong? diff --git a/fs/ocfs2/export.h b/fs/ocfs2/export.h index 5b77ee7866ef..e08bed9e45a0 100644 --- a/fs/ocfs2/export.h +++ b/fs/ocfs2/export.h @@ -26,6 +26,8 @@ #ifndef OCFS2_EXPORT_H #define OCFS2_EXPORT_H +#include <linux/exportfs.h> + extern struct export_operations ocfs2_export_ops; #endif /* OCFS2_EXPORT_H */ diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index f04c7aa834cb..004c2abbc732 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1867,7 +1867,8 @@ static ssize_t ocfs2_file_buffered_write(struct file *file, loff_t *ppos, loff_t pos; const struct iovec *cur_iov = iov; struct page *user_page, *page; - char *buf, *dst; + char * uninitialized_var(buf); + char *dst; void *fsdata; /* diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c index 352eb4a13f98..c4c36171240d 100644 --- a/fs/ocfs2/heartbeat.c +++ b/fs/ocfs2/heartbeat.c @@ -209,7 +209,7 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb) envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; envp[2] = NULL; - ret = call_usermodehelper(argv[0], argv, envp, 1); + ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); if (ret < 0) mlog_errno(ret); } diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index bd68c3f2afbe..87dcece7e1b5 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -63,7 +63,7 @@ static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags, goto bail_unlock; status = -EACCES; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) goto bail_unlock; if (!S_ISDIR(inode->i_mode)) diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c index d79aa12137d2..ee64749e2eeb 100644 --- a/fs/ocfs2/mmap.c +++ b/fs/ocfs2/mmap.c @@ -60,31 +60,28 @@ static inline int ocfs2_vm_op_unblock_sigs(sigset_t *oldset) return sigprocmask(SIG_SETMASK, oldset, NULL); } -static struct page *ocfs2_nopage(struct vm_area_struct * area, - unsigned long address, - int *type) +static int ocfs2_fault(struct vm_area_struct *area, struct vm_fault *vmf) { - struct page *page = NOPAGE_SIGBUS; sigset_t blocked, oldset; - int ret; + int error, ret; - mlog_entry("(area=%p, address=%lu, type=%p)\n", area, address, - type); + mlog_entry("(area=%p, page offset=%lu)\n", area, vmf->pgoff); - ret = ocfs2_vm_op_block_sigs(&blocked, &oldset); - if (ret < 0) { - mlog_errno(ret); + error = ocfs2_vm_op_block_sigs(&blocked, &oldset); + if (error < 0) { + mlog_errno(error); + ret = VM_FAULT_SIGBUS; goto out; } - page = filemap_nopage(area, address, type); + ret = filemap_fault(area, vmf); - ret = ocfs2_vm_op_unblock_sigs(&oldset); - if (ret < 0) - mlog_errno(ret); + error = ocfs2_vm_op_unblock_sigs(&oldset); + if (error < 0) + mlog_errno(error); out: - mlog_exit_ptr(page); - return page; + mlog_exit_ptr(vmf->page); + return ret; } static int __ocfs2_page_mkwrite(struct inode *inode, struct buffer_head *di_bh, @@ -209,7 +206,7 @@ out: } static struct vm_operations_struct ocfs2_file_vm_ops = { - .nopage = ocfs2_nopage, + .fault = ocfs2_fault, .page_mkwrite = ocfs2_page_mkwrite, }; @@ -226,6 +223,7 @@ int ocfs2_mmap(struct file *file, struct vm_area_struct *vma) ocfs2_meta_unlock(file->f_dentry->d_inode, lock_level); out: vma->vm_ops = &ocfs2_file_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; return 0; } diff --git a/fs/open.c b/fs/open.c index be6a457f4226..a6b054edacba 100644 --- a/fs/open.c +++ b/fs/open.c @@ -26,6 +26,7 @@ #include <linux/syscalls.h> #include <linux/rcupdate.h> #include <linux/audit.h> +#include <linux/falloc.h> int vfs_statfs(struct dentry *dentry, struct kstatfs *buf) { @@ -352,6 +353,64 @@ asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length) } #endif +asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len) +{ + struct file *file; + struct inode *inode; + long ret = -EINVAL; + + if (offset < 0 || len <= 0) + goto out; + + /* Return error if mode is not supported */ + ret = -EOPNOTSUPP; + if (mode && !(mode & FALLOC_FL_KEEP_SIZE)) + goto out; + + ret = -EBADF; + file = fget(fd); + if (!file) + goto out; + if (!(file->f_mode & FMODE_WRITE)) + goto out_fput; + /* + * Revalidate the write permissions, in case security policy has + * changed since the files were opened. + */ + ret = security_file_permission(file, MAY_WRITE); + if (ret) + goto out_fput; + + inode = file->f_path.dentry->d_inode; + + ret = -ESPIPE; + if (S_ISFIFO(inode->i_mode)) + goto out_fput; + + ret = -ENODEV; + /* + * Let individual file system decide if it supports preallocation + * for directories or not. + */ + if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode)) + goto out_fput; + + ret = -EFBIG; + /* Check for wrap through zero too */ + if (((offset + len) > inode->i_sb->s_maxbytes) || ((offset + len) < 0)) + goto out_fput; + + if (inode->i_op && inode->i_op->fallocate) + ret = inode->i_op->fallocate(inode, mode, offset, len); + else + ret = -ENOSYS; + +out_fput: + fput(file); +out: + return ret; +} + /* * access() needs to use the real uid/gid, not the effective uid/gid. * We do this by temporarily clearing all FS-related capabilities and diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 98e0b85a9bb2..783c57ec07d3 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -372,11 +372,10 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len, { struct hd_struct *p; - p = kmalloc(sizeof(*p), GFP_KERNEL); + p = kzalloc(sizeof(*p), GFP_KERNEL); if (!p) return; - memset(p, 0, sizeof(*p)); p->start_sect = start; p->nr_sects = len; p->partno = part; diff --git a/fs/proc/base.c b/fs/proc/base.c index ae3627337a92..3c77d5a64e7c 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -72,6 +72,7 @@ #include <linux/poll.h> #include <linux/nsproxy.h> #include <linux/oom.h> +#include <linux/elf.h> #include "internal.h" /* NOTE: @@ -283,7 +284,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer) static int proc_pid_wchan(struct task_struct *task, char *buffer) { unsigned long wchan; - char symname[KSYM_NAME_LEN+1]; + char symname[KSYM_NAME_LEN]; wchan = get_wchan(task); @@ -1014,7 +1015,7 @@ static int task_dumpable(struct task_struct *task) task_lock(task); mm = task->mm; if (mm) - dumpable = mm->dumpable; + dumpable = get_dumpable(mm); task_unlock(task); if(dumpable == 1) return 1; @@ -1785,6 +1786,91 @@ static const struct inode_operations proc_attr_dir_inode_operations = { #endif +#if defined(USE_ELF_CORE_DUMP) && defined(CONFIG_ELF_CORE) +static ssize_t proc_coredump_filter_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + struct mm_struct *mm; + char buffer[PROC_NUMBUF]; + size_t len; + int ret; + + if (!task) + return -ESRCH; + + ret = 0; + mm = get_task_mm(task); + if (mm) { + len = snprintf(buffer, sizeof(buffer), "%08lx\n", + ((mm->flags & MMF_DUMP_FILTER_MASK) >> + MMF_DUMP_FILTER_SHIFT)); + mmput(mm); + ret = simple_read_from_buffer(buf, count, ppos, buffer, len); + } + + put_task_struct(task); + + return ret; +} + +static ssize_t proc_coredump_filter_write(struct file *file, + const char __user *buf, + size_t count, + loff_t *ppos) +{ + struct task_struct *task; + struct mm_struct *mm; + char buffer[PROC_NUMBUF], *end; + unsigned int val; + int ret; + int i; + unsigned long mask; + + ret = -EFAULT; + memset(buffer, 0, sizeof(buffer)); + if (count > sizeof(buffer) - 1) + count = sizeof(buffer) - 1; + if (copy_from_user(buffer, buf, count)) + goto out_no_task; + + ret = -EINVAL; + val = (unsigned int)simple_strtoul(buffer, &end, 0); + if (*end == '\n') + end++; + if (end - buffer == 0) + goto out_no_task; + + ret = -ESRCH; + task = get_proc_task(file->f_dentry->d_inode); + if (!task) + goto out_no_task; + + ret = end - buffer; + mm = get_task_mm(task); + if (!mm) + goto out_no_mm; + + for (i = 0, mask = 1; i < MMF_DUMP_FILTER_BITS; i++, mask <<= 1) { + if (val & mask) + set_bit(i + MMF_DUMP_FILTER_SHIFT, &mm->flags); + else + clear_bit(i + MMF_DUMP_FILTER_SHIFT, &mm->flags); + } + + mmput(mm); + out_no_mm: + put_task_struct(task); + out_no_task: + return ret; +} + +static const struct file_operations proc_coredump_filter_operations = { + .read = proc_coredump_filter_read, + .write = proc_coredump_filter_write, +}; +#endif + /* * /proc/self: */ @@ -2005,6 +2091,9 @@ static const struct pid_entry tgid_base_stuff[] = { #ifdef CONFIG_FAULT_INJECTION REG("make-it-fail", S_IRUGO|S_IWUSR, fault_inject), #endif +#if defined(USE_ELF_CORE_DUMP) && defined(CONFIG_ELF_CORE) + REG("coredump_filter", S_IRUGO|S_IWUSR, coredump_filter), +#endif #ifdef CONFIG_TASK_IO_ACCOUNTING INF("io", S_IRUGO, pid_io_accounting), #endif diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index d24b8d46059a..f133afebed7a 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -445,6 +445,11 @@ static int show_stat(struct seq_file *p, void *v) cputime64_t user, nice, system, idle, iowait, irq, softirq, steal; u64 sum = 0; struct timespec boottime; + unsigned int *per_irq_sum; + + per_irq_sum = kzalloc(sizeof(unsigned int)*NR_IRQS, GFP_KERNEL); + if (!per_irq_sum) + return -ENOMEM; user = nice = system = idle = iowait = irq = softirq = steal = cputime64_zero; @@ -462,8 +467,11 @@ static int show_stat(struct seq_file *p, void *v) irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq); softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq); steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal); - for (j = 0 ; j < NR_IRQS ; j++) - sum += kstat_cpu(i).irqs[j]; + for (j = 0; j < NR_IRQS; j++) { + unsigned int temp = kstat_cpu(i).irqs[j]; + sum += temp; + per_irq_sum[j] += temp; + } } seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n", @@ -501,7 +509,7 @@ static int show_stat(struct seq_file *p, void *v) #if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64) for (i = 0; i < NR_IRQS; i++) - seq_printf(p, " %u", kstat_irqs(i)); + seq_printf(p, " %u", per_irq_sum[i]); #endif seq_printf(p, @@ -516,6 +524,7 @@ static int show_stat(struct seq_file *p, void *v) nr_running(), nr_iowait()); + kfree(per_irq_sum); return 0; } diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index d40d22b347b7..ef2b46d099ff 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -60,6 +60,7 @@ struct inode *ramfs_get_inode(struct super_block *sb, int mode, dev_t dev) inode->i_blocks = 0; inode->i_mapping->a_ops = &ramfs_aops; inode->i_mapping->backing_dev_info = &ramfs_backing_dev_info; + mapping_set_gfp_mask(inode->i_mapping, GFP_HIGHUSER); inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { default: diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 1272d11399fb..ddde489f1cb2 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -7,6 +7,7 @@ #include <linux/reiserfs_fs.h> #include <linux/reiserfs_acl.h> #include <linux/reiserfs_xattr.h> +#include <linux/exportfs.h> #include <linux/smp_lock.h> #include <linux/pagemap.h> #include <linux/highmem.h> diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c index b484d2913c0d..11a0fcc2d402 100644 --- a/fs/reiserfs/ioctl.c +++ b/fs/reiserfs/ioctl.c @@ -51,8 +51,7 @@ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, if (IS_RDONLY(inode)) return -EROFS; - if ((current->fsuid != inode->i_uid) - && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (get_user(flags, (int __user *)arg)) @@ -81,7 +80,7 @@ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, case REISERFS_IOC_GETVERSION: return put_user(inode->i_generation, (int __user *)arg); case REISERFS_IOC_SETVERSION: - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (IS_RDONLY(inode)) return -EROFS; diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index b4ac9119200e..5a93cfe1a032 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/blkdev.h> #include <linux/buffer_head.h> +#include <linux/exportfs.h> #include <linux/vfs.h> #include <linux/mnt_namespace.h> #include <linux/mount.h> diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c index 5296a29cc5eb..b7e4fa4539de 100644 --- a/fs/reiserfs/xattr_acl.c +++ b/fs/reiserfs/xattr_acl.c @@ -21,7 +21,7 @@ xattr_set_acl(struct inode *inode, int type, const void *value, size_t size) if (!reiserfs_posixacl(inode->i_sb)) return -EOPNOTSUPP; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; if (value) { diff --git a/fs/splice.c b/fs/splice.c index 53fc2082a468..22496d2a73fa 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -265,7 +265,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, unsigned int flags) { struct address_space *mapping = in->f_mapping; - unsigned int loff, nr_pages; + unsigned int loff, nr_pages, req_pages; struct page *pages[PIPE_BUFFERS]; struct partial_page partial[PIPE_BUFFERS]; struct page *page; @@ -281,28 +281,24 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, index = *ppos >> PAGE_CACHE_SHIFT; loff = *ppos & ~PAGE_CACHE_MASK; - nr_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - - if (nr_pages > PIPE_BUFFERS) - nr_pages = PIPE_BUFFERS; - - /* - * Don't try to 2nd guess the read-ahead logic, call into - * page_cache_readahead() like the page cache reads would do. - */ - page_cache_readahead(mapping, &in->f_ra, in, index, nr_pages); + req_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + nr_pages = min(req_pages, (unsigned)PIPE_BUFFERS); /* * Lookup the (hopefully) full range of pages we need. */ spd.nr_pages = find_get_pages_contig(mapping, index, nr_pages, pages); + index += spd.nr_pages; /* * If find_get_pages_contig() returned fewer pages than we needed, - * allocate the rest and fill in the holes. + * readahead/allocate the rest and fill in the holes. */ + if (spd.nr_pages < nr_pages) + page_cache_sync_readahead(mapping, &in->f_ra, in, + index, req_pages - spd.nr_pages); + error = 0; - index += spd.nr_pages; while (spd.nr_pages < nr_pages) { /* * Page could be there, find_get_pages_contig() breaks on @@ -311,12 +307,6 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, page = find_get_page(mapping, index); if (!page) { /* - * Make sure the read-ahead engine is notified - * about this failure. - */ - handle_ra_miss(mapping, &in->f_ra, index); - - /* * page didn't exist, allocate one. */ page = page_cache_alloc_cold(mapping); @@ -361,6 +351,10 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, this_len = min_t(unsigned long, len, PAGE_CACHE_SIZE - loff); page = pages[page_nr]; + if (PageReadahead(page)) + page_cache_async_readahead(mapping, &in->f_ra, in, + page, index, req_pages - page_nr); + /* * If the page isn't uptodate, we may need to start io on it */ @@ -453,6 +447,7 @@ fill_it: */ while (page_nr < nr_pages) page_cache_release(pages[page_nr++]); + in->f_ra.prev_index = index; if (spd.nr_pages) return splice_to_pipe(pipe, &spd); diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index aee966c44aac..048e6054c2fd 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -361,20 +361,20 @@ static struct dentry_operations sysfs_dentry_ops = { struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type) { char *dup_name = NULL; - struct sysfs_dirent *sd = NULL; + struct sysfs_dirent *sd; if (type & SYSFS_COPY_NAME) { name = dup_name = kstrdup(name, GFP_KERNEL); if (!name) - goto err_out; + return NULL; } sd = kmem_cache_zalloc(sysfs_dir_cachep, GFP_KERNEL); if (!sd) - goto err_out; + goto err_out1; if (sysfs_alloc_ino(&sd->s_ino)) - goto err_out; + goto err_out2; atomic_set(&sd->s_count, 1); atomic_set(&sd->s_active, 0); @@ -386,9 +386,10 @@ struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type) return sd; - err_out: - kfree(dup_name); + err_out2: kmem_cache_free(sysfs_dir_cachep, sd); + err_out1: + kfree(dup_name); return NULL; } @@ -698,17 +699,19 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd, /* link in */ sysfs_addrm_start(&acxt, parent_sd); + if (!sysfs_find_dirent(parent_sd, name)) { sysfs_add_one(&acxt, sd); sysfs_link_sibling(sd); } - if (sysfs_addrm_finish(&acxt)) { - *p_sd = sd; - return 0; + + if (!sysfs_addrm_finish(&acxt)) { + sysfs_put(sd); + return -EEXIST; } - sysfs_put(sd); - return -EEXIST; + *p_sd = sd; + return 0; } int sysfs_create_subdir(struct kobject *kobj, const char *name, diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index cc497994b2a8..3e1cc062a740 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -410,11 +410,12 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr, sysfs_link_sibling(sd); } - if (sysfs_addrm_finish(&acxt)) - return 0; + if (!sysfs_addrm_finish(&acxt)) { + sysfs_put(sd); + return -EEXIST; + } - sysfs_put(sd); - return -EEXIST; + return 0; } diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index 3756e152285a..10d1b52899f1 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -133,7 +133,7 @@ static inline void set_inode_attr(struct inode * inode, struct iattr * iattr) */ static struct lock_class_key sysfs_inode_imutex_key; -void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode) +static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode) { inode->i_blocks = 0; inode->i_mapping->a_ops = &sysfs_aops; diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c index 402cc356203c..60714d075c2f 100644 --- a/fs/sysfs/mount.c +++ b/fs/sysfs/mount.c @@ -43,19 +43,19 @@ static int sysfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_time_gran = 1; sysfs_sb = sb; - inode = new_inode(sysfs_sb); + /* get root inode, initialize and unlock it */ + inode = sysfs_get_inode(&sysfs_root); if (!inode) { pr_debug("sysfs: could not get root inode\n"); return -ENOMEM; } - sysfs_init_inode(&sysfs_root, inode); - inode->i_op = &sysfs_dir_inode_operations; inode->i_fop = &sysfs_dir_operations; - /* directory inodes start off with i_nlink == 2 (for "." entry) */ - inc_nlink(inode); + inc_nlink(inode); /* directory, account for "." */ + unlock_new_inode(inode); + /* instantiate and link root dentry */ root = d_alloc_root(inode); if (!root) { pr_debug("%s: could not get root dentry!\n",__FUNCTION__); diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c index 2f86e0422290..4ce687f0b5d0 100644 --- a/fs/sysfs/symlink.c +++ b/fs/sysfs/symlink.c @@ -86,7 +86,9 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char sd = sysfs_new_dirent(name, S_IFLNK|S_IRWXUGO, SYSFS_KOBJ_LINK); if (!sd) goto out_put; + sd->s_elem.symlink.target_sd = target_sd; + target_sd = NULL; /* reference is now owned by the symlink */ sysfs_addrm_start(&acxt, parent_sd); @@ -95,11 +97,13 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char sysfs_link_sibling(sd); } - if (sysfs_addrm_finish(&acxt)) - return 0; + if (!sysfs_addrm_finish(&acxt)) { + error = -EEXIST; + goto out_put; + } + + return 0; - error = -EEXIST; - /* fall through */ out_put: sysfs_put(target_sd); sysfs_put(sd); diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 6a37f2386a8d..6b8c8d76d308 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -71,7 +71,6 @@ extern void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, extern int sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt); extern void sysfs_delete_inode(struct inode *inode); -extern void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode); extern struct inode * sysfs_get_inode(struct sysfs_dirent *sd); extern void sysfs_instantiate(struct dentry *dentry, struct inode *inode); diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c index 4cec91015681..ef48d094dd2b 100644 --- a/fs/udf/balloc.c +++ b/fs/udf/balloc.c @@ -41,18 +41,17 @@ #define uint(x) xuint(x) #define xuint(x) __le ## x -static inline int find_next_one_bit (void * addr, int size, int offset) +static inline int find_next_one_bit(void *addr, int size, int offset) { - uintBPL_t * p = ((uintBPL_t *) addr) + (offset / BITS_PER_LONG); - int result = offset & ~(BITS_PER_LONG-1); + uintBPL_t *p = ((uintBPL_t *) addr) + (offset / BITS_PER_LONG); + int result = offset & ~(BITS_PER_LONG - 1); unsigned long tmp; if (offset >= size) return size; size -= result; - offset &= (BITS_PER_LONG-1); - if (offset) - { + offset &= (BITS_PER_LONG - 1); + if (offset) { tmp = leBPL_to_cpup(p++); tmp &= ~0UL << offset; if (size < BITS_PER_LONG) @@ -62,8 +61,7 @@ static inline int find_next_one_bit (void * addr, int size, int offset) size -= BITS_PER_LONG; result += BITS_PER_LONG; } - while (size & ~(BITS_PER_LONG-1)) - { + while (size & ~(BITS_PER_LONG - 1)) { if ((tmp = leBPL_to_cpup(p++))) goto found_middle; result += BITS_PER_LONG; @@ -72,17 +70,18 @@ static inline int find_next_one_bit (void * addr, int size, int offset) if (!size) return result; tmp = leBPL_to_cpup(p); -found_first: - tmp &= ~0UL >> (BITS_PER_LONG-size); -found_middle: + found_first: + tmp &= ~0UL >> (BITS_PER_LONG - size); + found_middle: return result + ffz(~tmp); } #define find_first_one_bit(addr, size)\ find_next_one_bit((addr), (size), 0) -static int read_block_bitmap(struct super_block * sb, - struct udf_bitmap *bitmap, unsigned int block, unsigned long bitmap_nr) +static int read_block_bitmap(struct super_block *sb, + struct udf_bitmap *bitmap, unsigned int block, + unsigned long bitmap_nr) { struct buffer_head *bh = NULL; int retval = 0; @@ -92,38 +91,39 @@ static int read_block_bitmap(struct super_block * sb, loc.partitionReferenceNum = UDF_SB_PARTITION(sb); bh = udf_tread(sb, udf_get_lb_pblock(sb, loc, block)); - if (!bh) - { + if (!bh) { retval = -EIO; } bitmap->s_block_bitmap[bitmap_nr] = bh; return retval; } -static int __load_block_bitmap(struct super_block * sb, - struct udf_bitmap *bitmap, unsigned int block_group) +static int __load_block_bitmap(struct super_block *sb, + struct udf_bitmap *bitmap, + unsigned int block_group) { int retval = 0; int nr_groups = bitmap->s_nr_groups; - if (block_group >= nr_groups) - { - udf_debug("block_group (%d) > nr_groups (%d)\n", block_group, nr_groups); + if (block_group >= nr_groups) { + udf_debug("block_group (%d) > nr_groups (%d)\n", block_group, + nr_groups); } if (bitmap->s_block_bitmap[block_group]) return block_group; - else - { - retval = read_block_bitmap(sb, bitmap, block_group, block_group); + else { + retval = + read_block_bitmap(sb, bitmap, block_group, block_group); if (retval < 0) return retval; return block_group; } } -static inline int load_block_bitmap(struct super_block * sb, - struct udf_bitmap *bitmap, unsigned int block_group) +static inline int load_block_bitmap(struct super_block *sb, + struct udf_bitmap *bitmap, + unsigned int block_group) { int slot; @@ -138,13 +138,14 @@ static inline int load_block_bitmap(struct super_block * sb, return slot; } -static void udf_bitmap_free_blocks(struct super_block * sb, - struct inode * inode, - struct udf_bitmap *bitmap, - kernel_lb_addr bloc, uint32_t offset, uint32_t count) +static void udf_bitmap_free_blocks(struct super_block *sb, + struct inode *inode, + struct udf_bitmap *bitmap, + kernel_lb_addr bloc, uint32_t offset, + uint32_t count) { struct udf_sb_info *sbi = UDF_SB(sb); - struct buffer_head * bh = NULL; + struct buffer_head *bh = NULL; unsigned long block; unsigned long block_group; unsigned long bit; @@ -154,17 +155,22 @@ static void udf_bitmap_free_blocks(struct super_block * sb, mutex_lock(&sbi->s_alloc_mutex); if (bloc.logicalBlockNum < 0 || - (bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum)) - { - udf_debug("%d < %d || %d + %d > %d\n", - bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count, - UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum)); + (bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, + bloc. + partitionReferenceNum)) + { + udf_debug("%d < %d || %d + %d > %d\n", bloc.logicalBlockNum, 0, + bloc.logicalBlockNum, count, UDF_SB_PARTLEN(sb, + bloc. + partitionReferenceNum)); goto error_return; } - block = bloc.logicalBlockNum + offset + (sizeof(struct spaceBitmapDesc) << 3); + block = + bloc.logicalBlockNum + offset + + (sizeof(struct spaceBitmapDesc) << 3); -do_more: + do_more: overflow = 0; block_group = block >> (sb->s_blocksize_bits + 3); bit = block % (sb->s_blocksize << 3); @@ -172,8 +178,7 @@ do_more: /* * Check to see if we are freeing blocks across a group boundary. */ - if (bit + count > (sb->s_blocksize << 3)) - { + if (bit + count > (sb->s_blocksize << 3)) { overflow = bit + count - (sb->s_blocksize << 3); count -= overflow; } @@ -182,32 +187,31 @@ do_more: goto error_return; bh = bitmap->s_block_bitmap[bitmap_nr]; - for (i=0; i < count; i++) - { - if (udf_set_bit(bit + i, bh->b_data)) - { + for (i = 0; i < count; i++) { + if (udf_set_bit(bit + i, bh->b_data)) { udf_debug("bit %ld already set\n", bit + i); - udf_debug("byte=%2x\n", ((char *)bh->b_data)[(bit + i) >> 3]); - } - else - { + udf_debug("byte=%2x\n", + ((char *)bh->b_data)[(bit + i) >> 3]); + } else { if (inode) DQUOT_FREE_BLOCK(inode, 1); - if (UDF_SB_LVIDBH(sb)) - { - UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)] = - cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)])+1); + if (UDF_SB_LVIDBH(sb)) { + UDF_SB_LVID(sb)-> + freeSpaceTable[UDF_SB_PARTITION(sb)] = + cpu_to_le32(le32_to_cpu + (UDF_SB_LVID(sb)-> + freeSpaceTable[UDF_SB_PARTITION + (sb)]) + 1); } } } mark_buffer_dirty(bh); - if (overflow) - { + if (overflow) { block += count; count = overflow; goto do_more; } -error_return: + error_return: sb->s_dirt = 1; if (UDF_SB_LVIDBH(sb)) mark_buffer_dirty(UDF_SB_LVIDBH(sb)); @@ -215,10 +219,11 @@ error_return: return; } -static int udf_bitmap_prealloc_blocks(struct super_block * sb, - struct inode * inode, - struct udf_bitmap *bitmap, uint16_t partition, uint32_t first_block, - uint32_t block_count) +static int udf_bitmap_prealloc_blocks(struct super_block *sb, + struct inode *inode, + struct udf_bitmap *bitmap, + uint16_t partition, uint32_t first_block, + uint32_t block_count) { struct udf_sb_info *sbi = UDF_SB(sb); int alloc_count = 0; @@ -233,9 +238,10 @@ static int udf_bitmap_prealloc_blocks(struct super_block * sb, if (first_block + block_count > UDF_SB_PARTLEN(sb, partition)) block_count = UDF_SB_PARTLEN(sb, partition) - first_block; -repeat: + repeat: nr_groups = (UDF_SB_PARTLEN(sb, partition) + - (sizeof(struct spaceBitmapDesc) << 3) + (sb->s_blocksize * 8) - 1) / (sb->s_blocksize * 8); + (sizeof(struct spaceBitmapDesc) << 3) + + (sb->s_blocksize * 8) - 1) / (sb->s_blocksize * 8); block = first_block + (sizeof(struct spaceBitmapDesc) << 3); block_group = block >> (sb->s_blocksize_bits + 3); group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc); @@ -247,31 +253,30 @@ repeat: bit = block % (sb->s_blocksize << 3); - while (bit < (sb->s_blocksize << 3) && block_count > 0) - { + while (bit < (sb->s_blocksize << 3) && block_count > 0) { if (!udf_test_bit(bit, bh->b_data)) goto out; else if (DQUOT_PREALLOC_BLOCK(inode, 1)) goto out; - else if (!udf_clear_bit(bit, bh->b_data)) - { + else if (!udf_clear_bit(bit, bh->b_data)) { udf_debug("bit already cleared for block %d\n", bit); DQUOT_FREE_BLOCK(inode, 1); goto out; } - block_count --; - alloc_count ++; - bit ++; - block ++; + block_count--; + alloc_count++; + bit++; + block++; } mark_buffer_dirty(bh); if (block_count > 0) goto repeat; -out: - if (UDF_SB_LVIDBH(sb)) - { + out: + if (UDF_SB_LVIDBH(sb)) { UDF_SB_LVID(sb)->freeSpaceTable[partition] = - cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-alloc_count); + cpu_to_le32(le32_to_cpu + (UDF_SB_LVID(sb)->freeSpaceTable[partition]) - + alloc_count); mark_buffer_dirty(UDF_SB_LVIDBH(sb)); } sb->s_dirt = 1; @@ -279,12 +284,13 @@ out: return alloc_count; } -static int udf_bitmap_new_block(struct super_block * sb, - struct inode * inode, - struct udf_bitmap *bitmap, uint16_t partition, uint32_t goal, int *err) +static int udf_bitmap_new_block(struct super_block *sb, + struct inode *inode, + struct udf_bitmap *bitmap, uint16_t partition, + uint32_t goal, int *err) { struct udf_sb_info *sbi = UDF_SB(sb); - int newbit, bit=0, block, block_group, group_start; + int newbit, bit = 0, block, block_group, group_start; int end_goal, nr_groups, bitmap_nr, i; struct buffer_head *bh = NULL; char *ptr; @@ -293,7 +299,7 @@ static int udf_bitmap_new_block(struct super_block * sb, *err = -ENOSPC; mutex_lock(&sbi->s_alloc_mutex); -repeat: + repeat: if (goal < 0 || goal >= UDF_SB_PARTLEN(sb, partition)) goal = 0; @@ -306,38 +312,39 @@ repeat: if (bitmap_nr < 0) goto error_return; bh = bitmap->s_block_bitmap[bitmap_nr]; - ptr = memscan((char *)bh->b_data + group_start, 0xFF, sb->s_blocksize - group_start); + ptr = + memscan((char *)bh->b_data + group_start, 0xFF, + sb->s_blocksize - group_start); - if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) - { + if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) { bit = block % (sb->s_blocksize << 3); - if (udf_test_bit(bit, bh->b_data)) - { + if (udf_test_bit(bit, bh->b_data)) { goto got_block; } end_goal = (bit + 63) & ~63; bit = udf_find_next_one_bit(bh->b_data, end_goal, bit); if (bit < end_goal) goto got_block; - ptr = memscan((char *)bh->b_data + (bit >> 3), 0xFF, sb->s_blocksize - ((bit + 7) >> 3)); + ptr = + memscan((char *)bh->b_data + (bit >> 3), 0xFF, + sb->s_blocksize - ((bit + 7) >> 3)); newbit = (ptr - ((char *)bh->b_data)) << 3; - if (newbit < sb->s_blocksize << 3) - { + if (newbit < sb->s_blocksize << 3) { bit = newbit; goto search_back; } - newbit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, bit); - if (newbit < sb->s_blocksize << 3) - { + newbit = + udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, + bit); + if (newbit < sb->s_blocksize << 3) { bit = newbit; goto got_block; } } - for (i=0; i<(nr_groups*2); i++) - { - block_group ++; + for (i = 0; i < (nr_groups * 2); i++) { + block_group++; if (block_group >= nr_groups) block_group = 0; group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc); @@ -346,67 +353,69 @@ repeat: if (bitmap_nr < 0) goto error_return; bh = bitmap->s_block_bitmap[bitmap_nr]; - if (i < nr_groups) - { - ptr = memscan((char *)bh->b_data + group_start, 0xFF, sb->s_blocksize - group_start); - if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) - { + if (i < nr_groups) { + ptr = + memscan((char *)bh->b_data + group_start, 0xFF, + sb->s_blocksize - group_start); + if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) { bit = (ptr - ((char *)bh->b_data)) << 3; break; } - } - else - { - bit = udf_find_next_one_bit((char *)bh->b_data, sb->s_blocksize << 3, group_start << 3); + } else { + bit = + udf_find_next_one_bit((char *)bh->b_data, + sb->s_blocksize << 3, + group_start << 3); if (bit < sb->s_blocksize << 3) break; } } - if (i >= (nr_groups*2)) - { + if (i >= (nr_groups * 2)) { mutex_unlock(&sbi->s_alloc_mutex); return newblock; } if (bit < sb->s_blocksize << 3) goto search_back; else - bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, group_start << 3); - if (bit >= sb->s_blocksize << 3) - { + bit = + udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, + group_start << 3); + if (bit >= sb->s_blocksize << 3) { mutex_unlock(&sbi->s_alloc_mutex); return 0; } -search_back: - for (i=0; i<7 && bit > (group_start << 3) && udf_test_bit(bit - 1, bh->b_data); i++, bit--); + search_back: + for (i = 0; + i < 7 && bit > (group_start << 3) + && udf_test_bit(bit - 1, bh->b_data); i++, bit--) ; -got_block: + got_block: /* * Check quota for allocation of this block. */ - if (inode && DQUOT_ALLOC_BLOCK(inode, 1)) - { + if (inode && DQUOT_ALLOC_BLOCK(inode, 1)) { mutex_unlock(&sbi->s_alloc_mutex); *err = -EDQUOT; return 0; } newblock = bit + (block_group << (sb->s_blocksize_bits + 3)) - - (sizeof(struct spaceBitmapDesc) << 3); + (sizeof(struct spaceBitmapDesc) << 3); - if (!udf_clear_bit(bit, bh->b_data)) - { + if (!udf_clear_bit(bit, bh->b_data)) { udf_debug("bit already cleared for block %d\n", bit); goto repeat; } mark_buffer_dirty(bh); - if (UDF_SB_LVIDBH(sb)) - { + if (UDF_SB_LVIDBH(sb)) { UDF_SB_LVID(sb)->freeSpaceTable[partition] = - cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-1); + cpu_to_le32(le32_to_cpu + (UDF_SB_LVID(sb)->freeSpaceTable[partition]) - + 1); mark_buffer_dirty(UDF_SB_LVIDBH(sb)); } sb->s_dirt = 1; @@ -414,16 +423,17 @@ got_block: *err = 0; return newblock; -error_return: + error_return: *err = -EIO; mutex_unlock(&sbi->s_alloc_mutex); return 0; } -static void udf_table_free_blocks(struct super_block * sb, - struct inode * inode, - struct inode * table, - kernel_lb_addr bloc, uint32_t offset, uint32_t count) +static void udf_table_free_blocks(struct super_block *sb, + struct inode *inode, + struct inode *table, + kernel_lb_addr bloc, uint32_t offset, + uint32_t count) { struct udf_sb_info *sbi = UDF_SB(sb); uint32_t start, end; @@ -435,11 +445,14 @@ static void udf_table_free_blocks(struct super_block * sb, mutex_lock(&sbi->s_alloc_mutex); if (bloc.logicalBlockNum < 0 || - (bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum)) - { - udf_debug("%d < %d || %d + %d > %d\n", - bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count, - UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum)); + (bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, + bloc. + partitionReferenceNum)) + { + udf_debug("%d < %d || %d + %d > %d\n", bloc.logicalBlockNum, 0, + bloc.logicalBlockNum, count, UDF_SB_PARTLEN(sb, + bloc. + partitionReferenceNum)); goto error_return; } @@ -447,10 +460,11 @@ static void udf_table_free_blocks(struct super_block * sb, but.. oh well */ if (inode) DQUOT_FREE_BLOCK(inode, count); - if (UDF_SB_LVIDBH(sb)) - { + if (UDF_SB_LVIDBH(sb)) { UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)] = - cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)])+count); + cpu_to_le32(le32_to_cpu + (UDF_SB_LVID(sb)-> + freeSpaceTable[UDF_SB_PARTITION(sb)]) + count); mark_buffer_dirty(UDF_SB_LVIDBH(sb)); } @@ -463,73 +477,75 @@ static void udf_table_free_blocks(struct super_block * sb, epos.bh = oepos.bh = NULL; while (count && (etype = - udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) - { + udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) { if (((eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits)) == - start)) - { - if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits)) - { - count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits); - start += ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits); - elen = (etype << 30) | (0x40000000 - sb->s_blocksize); - } - else - { + start)) { + if ((0x3FFFFFFF - elen) < + (count << sb->s_blocksize_bits)) { + count -= + ((0x3FFFFFFF - + elen) >> sb->s_blocksize_bits); + start += + ((0x3FFFFFFF - + elen) >> sb->s_blocksize_bits); + elen = + (etype << 30) | (0x40000000 - + sb->s_blocksize); + } else { elen = (etype << 30) | - (elen + (count << sb->s_blocksize_bits)); + (elen + (count << sb->s_blocksize_bits)); start += count; count = 0; } udf_write_aext(table, &oepos, eloc, elen, 1); - } - else if (eloc.logicalBlockNum == (end + 1)) - { - if ((0x3FFFFFFF - elen) < (count << sb->s_blocksize_bits)) - { - count -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits); - end -= ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits); + } else if (eloc.logicalBlockNum == (end + 1)) { + if ((0x3FFFFFFF - elen) < + (count << sb->s_blocksize_bits)) { + count -= + ((0x3FFFFFFF - + elen) >> sb->s_blocksize_bits); + end -= + ((0x3FFFFFFF - + elen) >> sb->s_blocksize_bits); eloc.logicalBlockNum -= - ((0x3FFFFFFF - elen) >> sb->s_blocksize_bits); - elen = (etype << 30) | (0x40000000 - sb->s_blocksize); - } - else - { + ((0x3FFFFFFF - + elen) >> sb->s_blocksize_bits); + elen = + (etype << 30) | (0x40000000 - + sb->s_blocksize); + } else { eloc.logicalBlockNum = start; elen = (etype << 30) | - (elen + (count << sb->s_blocksize_bits)); + (elen + (count << sb->s_blocksize_bits)); end -= count; count = 0; } udf_write_aext(table, &oepos, eloc, elen, 1); } - if (epos.bh != oepos.bh) - { + if (epos.bh != oepos.bh) { i = -1; oepos.block = epos.block; brelse(oepos.bh); get_bh(epos.bh); oepos.bh = epos.bh; oepos.offset = 0; - } - else + } else oepos.offset = epos.offset; } - if (count) - { + if (count) { /* NOTE: we CANNOT use udf_add_aext here, as it can try to allocate - a new block, and since we hold the super block lock already - very bad things would happen :) + a new block, and since we hold the super block lock already + very bad things would happen :) - We copy the behavior of udf_add_aext, but instead of - trying to allocate a new block close to the existing one, - we just steal a block from the extent we are trying to add. + We copy the behavior of udf_add_aext, but instead of + trying to allocate a new block close to the existing one, + we just steal a block from the extent we are trying to add. - It would be nice if the blocks were close together, but it - isn't required. - */ + It would be nice if the blocks were close together, but it + isn't required. + */ int adsize; short_ad *sad = NULL; @@ -537,121 +553,124 @@ static void udf_table_free_blocks(struct super_block * sb, struct allocExtDesc *aed; eloc.logicalBlockNum = start; - elen = EXT_RECORDED_ALLOCATED | - (count << sb->s_blocksize_bits); + elen = EXT_RECORDED_ALLOCATED | (count << sb->s_blocksize_bits); if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_SHORT) adsize = sizeof(short_ad); else if (UDF_I_ALLOCTYPE(table) == ICBTAG_FLAG_AD_LONG) adsize = sizeof(long_ad); - else - { + else { brelse(oepos.bh); brelse(epos.bh); goto error_return; } - if (epos.offset + (2 * adsize) > sb->s_blocksize) - { + if (epos.offset + (2 * adsize) > sb->s_blocksize) { char *sptr, *dptr; int loffset; - + brelse(oepos.bh); oepos = epos; /* Steal a block from the extent being free'd */ epos.block.logicalBlockNum = eloc.logicalBlockNum; - eloc.logicalBlockNum ++; + eloc.logicalBlockNum++; elen -= sb->s_blocksize; if (!(epos.bh = udf_tread(sb, - udf_get_lb_pblock(sb, epos.block, 0)))) - { + udf_get_lb_pblock(sb, + epos.block, + 0)))) { brelse(oepos.bh); goto error_return; } aed = (struct allocExtDesc *)(epos.bh->b_data); - aed->previousAllocExtLocation = cpu_to_le32(oepos.block.logicalBlockNum); - if (epos.offset + adsize > sb->s_blocksize) - { + aed->previousAllocExtLocation = + cpu_to_le32(oepos.block.logicalBlockNum); + if (epos.offset + adsize > sb->s_blocksize) { loffset = epos.offset; aed->lengthAllocDescs = cpu_to_le32(adsize); sptr = UDF_I_DATA(inode) + epos.offset - - udf_file_entry_alloc_offset(inode) + - UDF_I_LENEATTR(inode) - adsize; - dptr = epos.bh->b_data + sizeof(struct allocExtDesc); + udf_file_entry_alloc_offset(inode) + + UDF_I_LENEATTR(inode) - adsize; + dptr = + epos.bh->b_data + + sizeof(struct allocExtDesc); memcpy(dptr, sptr, adsize); - epos.offset = sizeof(struct allocExtDesc) + adsize; - } - else - { + epos.offset = + sizeof(struct allocExtDesc) + adsize; + } else { loffset = epos.offset + adsize; aed->lengthAllocDescs = cpu_to_le32(0); sptr = oepos.bh->b_data + epos.offset; epos.offset = sizeof(struct allocExtDesc); - if (oepos.bh) - { - aed = (struct allocExtDesc *)oepos.bh->b_data; + if (oepos.bh) { + aed = + (struct allocExtDesc *)oepos.bh-> + b_data; aed->lengthAllocDescs = - cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize); - } - else - { + cpu_to_le32(le32_to_cpu + (aed-> + lengthAllocDescs) + + adsize); + } else { UDF_I_LENALLOC(table) += adsize; mark_inode_dirty(table); } } if (UDF_SB_UDFREV(sb) >= 0x0200) - udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 3, 1, - epos.block.logicalBlockNum, sizeof(tag)); + udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 3, + 1, epos.block.logicalBlockNum, + sizeof(tag)); else - udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 2, 1, - epos.block.logicalBlockNum, sizeof(tag)); - switch (UDF_I_ALLOCTYPE(table)) - { - case ICBTAG_FLAG_AD_SHORT: + udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 2, + 1, epos.block.logicalBlockNum, + sizeof(tag)); + switch (UDF_I_ALLOCTYPE(table)) { + case ICBTAG_FLAG_AD_SHORT: { - sad = (short_ad *)sptr; - sad->extLength = cpu_to_le32( - EXT_NEXT_EXTENT_ALLOCDECS | - sb->s_blocksize); - sad->extPosition = cpu_to_le32(epos.block.logicalBlockNum); + sad = (short_ad *) sptr; + sad->extLength = + cpu_to_le32 + (EXT_NEXT_EXTENT_ALLOCDECS | sb-> + s_blocksize); + sad->extPosition = + cpu_to_le32(epos.block. + logicalBlockNum); break; } - case ICBTAG_FLAG_AD_LONG: + case ICBTAG_FLAG_AD_LONG: { - lad = (long_ad *)sptr; - lad->extLength = cpu_to_le32( - EXT_NEXT_EXTENT_ALLOCDECS | - sb->s_blocksize); - lad->extLocation = cpu_to_lelb(epos.block); + lad = (long_ad *) sptr; + lad->extLength = + cpu_to_le32 + (EXT_NEXT_EXTENT_ALLOCDECS | sb-> + s_blocksize); + lad->extLocation = + cpu_to_lelb(epos.block); break; } } - if (oepos.bh) - { + if (oepos.bh) { udf_update_tag(oepos.bh->b_data, loffset); mark_buffer_dirty(oepos.bh); - } - else + } else mark_inode_dirty(table); } - if (elen) /* It's possible that stealing the block emptied the extent */ - { + if (elen) { /* It's possible that stealing the block emptied the extent */ udf_write_aext(table, &epos, eloc, elen, 1); - if (!epos.bh) - { + if (!epos.bh) { UDF_I_LENALLOC(table) += adsize; mark_inode_dirty(table); - } - else - { + } else { aed = (struct allocExtDesc *)epos.bh->b_data; aed->lengthAllocDescs = - cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize); + cpu_to_le32(le32_to_cpu + (aed->lengthAllocDescs) + + adsize); udf_update_tag(epos.bh->b_data, epos.offset); mark_buffer_dirty(epos.bh); } @@ -661,16 +680,16 @@ static void udf_table_free_blocks(struct super_block * sb, brelse(epos.bh); brelse(oepos.bh); -error_return: + error_return: sb->s_dirt = 1; mutex_unlock(&sbi->s_alloc_mutex); return; } -static int udf_table_prealloc_blocks(struct super_block * sb, - struct inode * inode, - struct inode *table, uint16_t partition, uint32_t first_block, - uint32_t block_count) +static int udf_table_prealloc_blocks(struct super_block *sb, + struct inode *inode, + struct inode *table, uint16_t partition, + uint32_t first_block, uint32_t block_count) { struct udf_sb_info *sbi = UDF_SB(sb); int alloc_count = 0; @@ -696,39 +715,46 @@ static int udf_table_prealloc_blocks(struct super_block * sb, eloc.logicalBlockNum = 0xFFFFFFFF; while (first_block != eloc.logicalBlockNum && (etype = - udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) - { + udf_next_aext(table, + &epos, + &eloc, + &elen, + 1)) != + -1) { udf_debug("eloc=%d, elen=%d, first_block=%d\n", - eloc.logicalBlockNum, elen, first_block); - ; /* empty loop body */ + eloc.logicalBlockNum, elen, first_block); + ; /* empty loop body */ } - if (first_block == eloc.logicalBlockNum) - { + if (first_block == eloc.logicalBlockNum) { epos.offset -= adsize; alloc_count = (elen >> sb->s_blocksize_bits); - if (inode && DQUOT_PREALLOC_BLOCK(inode, alloc_count > block_count ? block_count : alloc_count)) + if (inode + && DQUOT_PREALLOC_BLOCK(inode, + alloc_count > + block_count ? block_count : + alloc_count)) alloc_count = 0; - else if (alloc_count > block_count) - { + else if (alloc_count > block_count) { alloc_count = block_count; eloc.logicalBlockNum += alloc_count; elen -= (alloc_count << sb->s_blocksize_bits); - udf_write_aext(table, &epos, eloc, (etype << 30) | elen, 1); - } - else - udf_delete_aext(table, epos, eloc, (etype << 30) | elen); - } - else + udf_write_aext(table, &epos, eloc, (etype << 30) | elen, + 1); + } else + udf_delete_aext(table, epos, eloc, + (etype << 30) | elen); + } else alloc_count = 0; brelse(epos.bh); - if (alloc_count && UDF_SB_LVIDBH(sb)) - { + if (alloc_count && UDF_SB_LVIDBH(sb)) { UDF_SB_LVID(sb)->freeSpaceTable[partition] = - cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-alloc_count); + cpu_to_le32(le32_to_cpu + (UDF_SB_LVID(sb)->freeSpaceTable[partition]) - + alloc_count); mark_buffer_dirty(UDF_SB_LVIDBH(sb)); sb->s_dirt = 1; } @@ -736,9 +762,10 @@ static int udf_table_prealloc_blocks(struct super_block * sb, return alloc_count; } -static int udf_table_new_block(struct super_block * sb, - struct inode * inode, - struct inode *table, uint16_t partition, uint32_t goal, int *err) +static int udf_table_new_block(struct super_block *sb, + struct inode *inode, + struct inode *table, uint16_t partition, + uint32_t goal, int *err) { struct udf_sb_info *sbi = UDF_SB(sb); uint32_t spread = 0xFFFFFFFF, nspread = 0xFFFFFFFF; @@ -765,30 +792,27 @@ static int udf_table_new_block(struct super_block * sb, we stop. Otherwise we keep going till we run out of extents. We store the buffer_head, bloc, and extoffset of the current closest match and use that when we are done. - */ + */ epos.offset = sizeof(struct unallocSpaceEntry); epos.block = UDF_I_LOCATION(table); epos.bh = goal_epos.bh = NULL; while (spread && (etype = - udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) - { - if (goal >= eloc.logicalBlockNum) - { - if (goal < eloc.logicalBlockNum + (elen >> sb->s_blocksize_bits)) + udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) { + if (goal >= eloc.logicalBlockNum) { + if (goal < + eloc.logicalBlockNum + + (elen >> sb->s_blocksize_bits)) nspread = 0; else nspread = goal - eloc.logicalBlockNum - - (elen >> sb->s_blocksize_bits); - } - else + (elen >> sb->s_blocksize_bits); + } else nspread = eloc.logicalBlockNum - goal; - if (nspread < spread) - { + if (nspread < spread) { spread = nspread; - if (goal_epos.bh != epos.bh) - { + if (goal_epos.bh != epos.bh) { brelse(goal_epos.bh); goal_epos.bh = epos.bh; get_bh(goal_epos.bh); @@ -802,8 +826,7 @@ static int udf_table_new_block(struct super_block * sb, brelse(epos.bh); - if (spread == 0xFFFFFFFF) - { + if (spread == 0xFFFFFFFF) { brelse(goal_epos.bh); mutex_unlock(&sbi->s_alloc_mutex); return 0; @@ -815,11 +838,10 @@ static int udf_table_new_block(struct super_block * sb, /* This works, but very poorly.... */ newblock = goal_eloc.logicalBlockNum; - goal_eloc.logicalBlockNum ++; + goal_eloc.logicalBlockNum++; goal_elen -= sb->s_blocksize; - if (inode && DQUOT_ALLOC_BLOCK(inode, 1)) - { + if (inode && DQUOT_ALLOC_BLOCK(inode, 1)) { brelse(goal_epos.bh); mutex_unlock(&sbi->s_alloc_mutex); *err = -EDQUOT; @@ -832,10 +854,11 @@ static int udf_table_new_block(struct super_block * sb, udf_delete_aext(table, goal_epos, goal_eloc, goal_elen); brelse(goal_epos.bh); - if (UDF_SB_LVIDBH(sb)) - { + if (UDF_SB_LVIDBH(sb)) { UDF_SB_LVID(sb)->freeSpaceTable[partition] = - cpu_to_le32(le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[partition])-1); + cpu_to_le32(le32_to_cpu + (UDF_SB_LVID(sb)->freeSpaceTable[partition]) - + 1); mark_buffer_dirty(UDF_SB_LVIDBH(sb)); } @@ -845,105 +868,99 @@ static int udf_table_new_block(struct super_block * sb, return newblock; } -inline void udf_free_blocks(struct super_block * sb, - struct inode * inode, - kernel_lb_addr bloc, uint32_t offset, uint32_t count) +inline void udf_free_blocks(struct super_block *sb, + struct inode *inode, + kernel_lb_addr bloc, uint32_t offset, + uint32_t count) { uint16_t partition = bloc.partitionReferenceNum; - if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) - { + if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) { return udf_bitmap_free_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap, - bloc, offset, count); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE) - { + UDF_SB_PARTMAPS(sb)[partition]. + s_uspace.s_bitmap, bloc, offset, + count); + } else if (UDF_SB_PARTFLAGS(sb, partition) & + UDF_PART_FLAG_UNALLOC_TABLE) { return udf_table_free_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table, - bloc, offset, count); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) - { + UDF_SB_PARTMAPS(sb)[partition]. + s_uspace.s_table, bloc, offset, + count); + } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) { return udf_bitmap_free_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap, - bloc, offset, count); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) - { + UDF_SB_PARTMAPS(sb)[partition]. + s_fspace.s_bitmap, bloc, offset, + count); + } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) { return udf_table_free_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table, - bloc, offset, count); - } - else + UDF_SB_PARTMAPS(sb)[partition]. + s_fspace.s_table, bloc, offset, + count); + } else return; } -inline int udf_prealloc_blocks(struct super_block * sb, - struct inode * inode, - uint16_t partition, uint32_t first_block, uint32_t block_count) +inline int udf_prealloc_blocks(struct super_block *sb, + struct inode *inode, + uint16_t partition, uint32_t first_block, + uint32_t block_count) { - if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) - { + if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) { return udf_bitmap_prealloc_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap, - partition, first_block, block_count); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE) - { + UDF_SB_PARTMAPS(sb) + [partition].s_uspace.s_bitmap, + partition, first_block, + block_count); + } else if (UDF_SB_PARTFLAGS(sb, partition) & + UDF_PART_FLAG_UNALLOC_TABLE) { return udf_table_prealloc_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table, - partition, first_block, block_count); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) - { + UDF_SB_PARTMAPS(sb)[partition]. + s_uspace.s_table, partition, + first_block, block_count); + } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) { return udf_bitmap_prealloc_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap, - partition, first_block, block_count); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) - { + UDF_SB_PARTMAPS(sb) + [partition].s_fspace.s_bitmap, + partition, first_block, + block_count); + } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) { return udf_table_prealloc_blocks(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table, - partition, first_block, block_count); - } - else + UDF_SB_PARTMAPS(sb)[partition]. + s_fspace.s_table, partition, + first_block, block_count); + } else return 0; } -inline int udf_new_block(struct super_block * sb, - struct inode * inode, - uint16_t partition, uint32_t goal, int *err) +inline int udf_new_block(struct super_block *sb, + struct inode *inode, + uint16_t partition, uint32_t goal, int *err) { int ret; - if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) - { + if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_BITMAP) { ret = udf_bitmap_new_block(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_bitmap, - partition, goal, err); + UDF_SB_PARTMAPS(sb)[partition]. + s_uspace.s_bitmap, partition, goal, + err); return ret; - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_UNALLOC_TABLE) - { + } else if (UDF_SB_PARTFLAGS(sb, partition) & + UDF_PART_FLAG_UNALLOC_TABLE) { return udf_table_new_block(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_uspace.s_table, - partition, goal, err); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) - { + UDF_SB_PARTMAPS(sb)[partition]. + s_uspace.s_table, partition, goal, + err); + } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_BITMAP) { return udf_bitmap_new_block(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_bitmap, - partition, goal, err); - } - else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) - { + UDF_SB_PARTMAPS(sb)[partition]. + s_fspace.s_bitmap, partition, goal, + err); + } else if (UDF_SB_PARTFLAGS(sb, partition) & UDF_PART_FLAG_FREED_TABLE) { return udf_table_new_block(sb, inode, - UDF_SB_PARTMAPS(sb)[partition].s_fspace.s_table, - partition, goal, err); - } - else - { + UDF_SB_PARTMAPS(sb)[partition]. + s_fspace.s_table, partition, goal, + err); + } else { *err = -EIO; return 0; } diff --git a/fs/udf/crc.c b/fs/udf/crc.c index ef2bfaa19d75..ae3d49790941 100644 --- a/fs/udf/crc.c +++ b/fs/udf/crc.c @@ -79,8 +79,7 @@ static uint16_t crc_table[256] = { * July 21, 1997 - Andrew E. Mileski * Adapted from OSTA-UDF(tm) 1.50 standard. */ -uint16_t -udf_crc(uint8_t *data, uint32_t size, uint16_t crc) +uint16_t udf_crc(uint8_t * data, uint32_t size, uint16_t crc) { while (size--) crc = crc_table[(crc >> 8 ^ *(data++)) & 0xffU] ^ (crc << 8); @@ -112,7 +111,7 @@ int main(void) return 0; } -#endif /* defined(TEST) */ +#endif /* defined(TEST) */ /****************************************************************************/ #if defined(GENERATE) @@ -138,7 +137,7 @@ int main(int argc, char **argv) /* Get the polynomial */ sscanf(argv[1], "%lo", &poly); - if (poly & 0xffff0000U){ + if (poly & 0xffff0000U) { fprintf(stderr, "polynomial is too large\en"); exit(1); } @@ -147,22 +146,22 @@ int main(int argc, char **argv) /* Create a table */ printf("static unsigned short crc_table[256] = {\n"); - for (n = 0; n < 256; n++){ + for (n = 0; n < 256; n++) { if (n % 8 == 0) printf("\t"); crc = n << 8; - for (i = 0; i < 8; i++){ - if(crc & 0x8000U) + for (i = 0; i < 8; i++) { + if (crc & 0x8000U) crc = (crc << 1) ^ poly; else crc <<= 1; - crc &= 0xFFFFU; + crc &= 0xFFFFU; } if (n == 255) printf("0x%04xU ", crc); else printf("0x%04xU, ", crc); - if(n % 8 == 7) + if (n % 8 == 7) printf("\n"); } printf("};\n"); @@ -170,4 +169,4 @@ int main(int argc, char **argv) return 0; } -#endif /* defined(GENERATE) */ +#endif /* defined(GENERATE) */ diff --git a/fs/udf/dir.c b/fs/udf/dir.c index e45f86b5e7b0..79bab9fe120c 100644 --- a/fs/udf/dir.c +++ b/fs/udf/dir.c @@ -43,10 +43,10 @@ static int do_udf_readdir(struct inode *, struct file *, filldir_t, void *); /* readdir and lookup functions */ const struct file_operations udf_dir_operations = { - .read = generic_read_dir, - .readdir = udf_readdir, - .ioctl = udf_ioctl, - .fsync = udf_fsync_file, + .read = generic_read_dir, + .readdir = udf_readdir, + .ioctl = udf_ioctl, + .fsync = udf_fsync_file, }; /* @@ -82,26 +82,26 @@ int udf_readdir(struct file *filp, void *dirent, filldir_t filldir) lock_kernel(); - if ( filp->f_pos == 0 ) - { - if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < 0) - { + if (filp->f_pos == 0) { + if (filldir(dirent, ".", 1, filp->f_pos, dir->i_ino, DT_DIR) < + 0) { unlock_kernel(); return 0; } - filp->f_pos ++; + filp->f_pos++; } result = do_udf_readdir(dir, filp, filldir, dirent); unlock_kernel(); - return result; + return result; } -static int -do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *dirent) +static int +do_udf_readdir(struct inode *dir, struct file *filp, filldir_t filldir, + void *dirent) { struct udf_fileident_bh fibh; - struct fileIdentDesc *fi=NULL; + struct fileIdentDesc *fi = NULL; struct fileIdentDesc cfi; int block, iblock; loff_t nf_pos = filp->f_pos - 1; @@ -117,7 +117,7 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d sector_t offset; int i, num; unsigned int dt_type; - struct extent_position epos = { NULL, 0, {0, 0}}; + struct extent_position epos = { NULL, 0, {0, 0} }; if (nf_pos >= size) return 0; @@ -125,65 +125,61 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d if (nf_pos == 0) nf_pos = (udf_ext0_offset(dir) >> 2); - fibh.soffset = fibh.eoffset = (nf_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; + fibh.soffset = fibh.eoffset = + (nf_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) fibh.sbh = fibh.ebh = NULL; else if (inode_bmap(dir, nf_pos >> (dir->i_sb->s_blocksize_bits - 2), - &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) - { + &epos, &eloc, &elen, + &offset) == (EXT_RECORDED_ALLOCATED >> 30)) { block = udf_get_lb_pblock(dir->i_sb, eloc, offset); - if ((++offset << dir->i_sb->s_blocksize_bits) < elen) - { + if ((++offset << dir->i_sb->s_blocksize_bits) < elen) { if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT) epos.offset -= sizeof(short_ad); else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG) epos.offset -= sizeof(long_ad); - } - else + } else offset = 0; - if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) - { + if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) { brelse(epos.bh); return -EIO; } - - if (!(offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9))-1))) - { + + if (!(offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9)) - 1))) { i = 16 >> (dir->i_sb->s_blocksize_bits - 9); - if (i+offset > (elen >> dir->i_sb->s_blocksize_bits)) - i = (elen >> dir->i_sb->s_blocksize_bits)-offset; - for (num=0; i>0; i--) - { - block = udf_get_lb_pblock(dir->i_sb, eloc, offset+i); + if (i + offset > (elen >> dir->i_sb->s_blocksize_bits)) + i = (elen >> dir->i_sb->s_blocksize_bits) - + offset; + for (num = 0; i > 0; i--) { + block = + udf_get_lb_pblock(dir->i_sb, eloc, + offset + i); tmp = udf_tgetblk(dir->i_sb, block); - if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp)) + if (tmp && !buffer_uptodate(tmp) + && !buffer_locked(tmp)) bha[num++] = tmp; else brelse(tmp); } - if (num) - { + if (num) { ll_rw_block(READA, num, bha); - for (i=0; i<num; i++) + for (i = 0; i < num; i++) brelse(bha[i]); } } - } - else - { + } else { brelse(epos.bh); return -ENOENT; } - while ( nf_pos < size ) - { + while (nf_pos < size) { filp->f_pos = nf_pos + 1; - fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc, &elen, &offset); + fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc, + &elen, &offset); - if (!fi) - { + if (!fi) { if (fibh.sbh != fibh.ebh) brelse(fibh.ebh); brelse(fibh.sbh); @@ -196,43 +192,41 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d if (fibh.sbh == fibh.ebh) nameptr = fi->fileIdent + liu; - else - { + else { int poffset; /* Unpaded ending offset */ - poffset = fibh.soffset + sizeof(struct fileIdentDesc) + liu + lfi; + poffset = + fibh.soffset + sizeof(struct fileIdentDesc) + liu + + lfi; if (poffset >= lfi) - nameptr = (char *)(fibh.ebh->b_data + poffset - lfi); - else - { + nameptr = + (char *)(fibh.ebh->b_data + poffset - lfi); + else { nameptr = fname; - memcpy(nameptr, fi->fileIdent + liu, lfi - poffset); - memcpy(nameptr + lfi - poffset, fibh.ebh->b_data, poffset); + memcpy(nameptr, fi->fileIdent + liu, + lfi - poffset); + memcpy(nameptr + lfi - poffset, + fibh.ebh->b_data, poffset); } } - if ( (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) != 0 ) - { - if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE) ) + if ((cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) { + if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE)) continue; } - - if ( (cfi.fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0 ) - { - if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE) ) + + if ((cfi.fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0) { + if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE)) continue; } - if ( cfi.fileCharacteristics & FID_FILE_CHAR_PARENT ) - { + if (cfi.fileCharacteristics & FID_FILE_CHAR_PARENT) { iblock = parent_ino(filp->f_path.dentry); flen = 2; memcpy(fname, "..", flen); dt_type = DT_DIR; - } - else - { + } else { kernel_lb_addr tloc = lelb_to_cpu(cfi.icb.extLocation); iblock = udf_get_lb_pblock(dir->i_sb, tloc, 0); @@ -240,18 +234,18 @@ do_udf_readdir(struct inode * dir, struct file *filp, filldir_t filldir, void *d dt_type = DT_UNKNOWN; } - if (flen) - { - if (filldir(dirent, fname, flen, filp->f_pos, iblock, dt_type) < 0) - { + if (flen) { + if (filldir + (dirent, fname, flen, filp->f_pos, iblock, + dt_type) < 0) { if (fibh.sbh != fibh.ebh) brelse(fibh.ebh); brelse(fibh.sbh); brelse(epos.bh); - return 0; + return 0; } } - } /* end while */ + } /* end while */ filp->f_pos = nf_pos + 1; diff --git a/fs/udf/directory.c b/fs/udf/directory.c index 198caa33027a..8adc77c1d579 100644 --- a/fs/udf/directory.c +++ b/fs/udf/directory.c @@ -19,10 +19,10 @@ #include <linux/buffer_head.h> #if 0 -static uint8_t * -udf_filead_read(struct inode *dir, uint8_t *tmpad, uint8_t ad_size, - kernel_lb_addr fe_loc, int *pos, int *offset, - struct buffer_head **bh, int *error) +static uint8_t *udf_filead_read(struct inode *dir, uint8_t * tmpad, + uint8_t ad_size, kernel_lb_addr fe_loc, + int *pos, int *offset, struct buffer_head **bh, + int *error) { int loffset = *offset; int block; @@ -31,31 +31,27 @@ udf_filead_read(struct inode *dir, uint8_t *tmpad, uint8_t ad_size, *error = 0; - ad = (uint8_t *)(*bh)->b_data + *offset; + ad = (uint8_t *) (*bh)->b_data + *offset; *offset += ad_size; - if (!ad) - { + if (!ad) { brelse(*bh); *error = 1; return NULL; } - if (*offset == dir->i_sb->s_blocksize) - { + if (*offset == dir->i_sb->s_blocksize) { brelse(*bh); block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos); if (!block) return NULL; if (!(*bh = udf_tread(dir->i_sb, block))) return NULL; - } - else if (*offset > dir->i_sb->s_blocksize) - { + } else if (*offset > dir->i_sb->s_blocksize) { ad = tmpad; remainder = dir->i_sb->s_blocksize - loffset; - memcpy((uint8_t *)ad, (*bh)->b_data + loffset, remainder); + memcpy((uint8_t *) ad, (*bh)->b_data + loffset, remainder); brelse(*bh); block = udf_get_lb_pblock(dir->i_sb, fe_loc, ++*pos); @@ -64,56 +60,56 @@ udf_filead_read(struct inode *dir, uint8_t *tmpad, uint8_t ad_size, if (!((*bh) = udf_tread(dir->i_sb, block))) return NULL; - memcpy((uint8_t *)ad + remainder, (*bh)->b_data, ad_size - remainder); + memcpy((uint8_t *) ad + remainder, (*bh)->b_data, + ad_size - remainder); *offset = ad_size - remainder; } return ad; } #endif -struct fileIdentDesc * -udf_fileident_read(struct inode *dir, loff_t *nf_pos, - struct udf_fileident_bh *fibh, - struct fileIdentDesc *cfi, - struct extent_position *epos, - kernel_lb_addr *eloc, uint32_t *elen, - sector_t *offset) +struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t * nf_pos, + struct udf_fileident_bh *fibh, + struct fileIdentDesc *cfi, + struct extent_position *epos, + kernel_lb_addr * eloc, uint32_t * elen, + sector_t * offset) { struct fileIdentDesc *fi; int i, num, block; - struct buffer_head * tmp, * bha[16]; + struct buffer_head *tmp, *bha[16]; fibh->soffset = fibh->eoffset; - if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) { fi = udf_get_fileident(UDF_I_DATA(dir) - - (UDF_I_EFE(dir) ? - sizeof(struct extendedFileEntry) : - sizeof(struct fileEntry)), - dir->i_sb->s_blocksize, &(fibh->eoffset)); + (UDF_I_EFE(dir) ? + sizeof(struct extendedFileEntry) : + sizeof(struct fileEntry)), + dir->i_sb->s_blocksize, + &(fibh->eoffset)); if (!fi) return NULL; *nf_pos += ((fibh->eoffset - fibh->soffset) >> 2); - memcpy((uint8_t *)cfi, (uint8_t *)fi, sizeof(struct fileIdentDesc)); + memcpy((uint8_t *) cfi, (uint8_t *) fi, + sizeof(struct fileIdentDesc)); return fi; } - if (fibh->eoffset == dir->i_sb->s_blocksize) - { + if (fibh->eoffset == dir->i_sb->s_blocksize) { int lextoffset = epos->offset; if (udf_next_aext(dir, epos, eloc, elen, 1) != - (EXT_RECORDED_ALLOCATED >> 30)) + (EXT_RECORDED_ALLOCATED >> 30)) return NULL; block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset); - (*offset) ++; + (*offset)++; if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen) *offset = 0; @@ -125,57 +121,57 @@ udf_fileident_read(struct inode *dir, loff_t *nf_pos, return NULL; fibh->soffset = fibh->eoffset = 0; - if (!(*offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9))-1))) + if (! + (*offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9)) - 1))) { i = 16 >> (dir->i_sb->s_blocksize_bits - 9); - if (i+*offset > (*elen >> dir->i_sb->s_blocksize_bits)) - i = (*elen >> dir->i_sb->s_blocksize_bits)-*offset; - for (num=0; i>0; i--) - { - block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset+i); + if (i + *offset > + (*elen >> dir->i_sb->s_blocksize_bits)) + i = (*elen >> dir->i_sb->s_blocksize_bits) - + *offset; + for (num = 0; i > 0; i--) { + block = + udf_get_lb_pblock(dir->i_sb, *eloc, + *offset + i); tmp = udf_tgetblk(dir->i_sb, block); - if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp)) + if (tmp && !buffer_uptodate(tmp) + && !buffer_locked(tmp)) bha[num++] = tmp; else brelse(tmp); } - if (num) - { + if (num) { ll_rw_block(READA, num, bha); - for (i=0; i<num; i++) + for (i = 0; i < num; i++) brelse(bha[i]); } } - } - else if (fibh->sbh != fibh->ebh) - { + } else if (fibh->sbh != fibh->ebh) { brelse(fibh->sbh); fibh->sbh = fibh->ebh; } fi = udf_get_fileident(fibh->sbh->b_data, dir->i_sb->s_blocksize, - &(fibh->eoffset)); + &(fibh->eoffset)); if (!fi) return NULL; *nf_pos += ((fibh->eoffset - fibh->soffset) >> 2); - if (fibh->eoffset <= dir->i_sb->s_blocksize) - { - memcpy((uint8_t *)cfi, (uint8_t *)fi, sizeof(struct fileIdentDesc)); - } - else if (fibh->eoffset > dir->i_sb->s_blocksize) - { + if (fibh->eoffset <= dir->i_sb->s_blocksize) { + memcpy((uint8_t *) cfi, (uint8_t *) fi, + sizeof(struct fileIdentDesc)); + } else if (fibh->eoffset > dir->i_sb->s_blocksize) { int lextoffset = epos->offset; if (udf_next_aext(dir, epos, eloc, elen, 1) != - (EXT_RECORDED_ALLOCATED >> 30)) + (EXT_RECORDED_ALLOCATED >> 30)) return NULL; block = udf_get_lb_pblock(dir->i_sb, *eloc, *offset); - (*offset) ++; + (*offset)++; if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen) *offset = 0; @@ -188,62 +184,62 @@ udf_fileident_read(struct inode *dir, loff_t *nf_pos, if (!(fibh->ebh = udf_tread(dir->i_sb, block))) return NULL; - if (sizeof(struct fileIdentDesc) > - fibh->soffset) - { + if (sizeof(struct fileIdentDesc) > -fibh->soffset) { int fi_len; - memcpy((uint8_t *)cfi, (uint8_t *)fi, - fibh->soffset); - memcpy((uint8_t *)cfi - fibh->soffset, fibh->ebh->b_data, - sizeof(struct fileIdentDesc) + fibh->soffset); + memcpy((uint8_t *) cfi, (uint8_t *) fi, -fibh->soffset); + memcpy((uint8_t *) cfi - fibh->soffset, + fibh->ebh->b_data, + sizeof(struct fileIdentDesc) + fibh->soffset); - fi_len = (sizeof(struct fileIdentDesc) + cfi->lengthFileIdent + - le16_to_cpu(cfi->lengthOfImpUse) + 3) & ~3; + fi_len = + (sizeof(struct fileIdentDesc) + + cfi->lengthFileIdent + + le16_to_cpu(cfi->lengthOfImpUse) + 3) & ~3; - *nf_pos += ((fi_len - (fibh->eoffset - fibh->soffset)) >> 2); + *nf_pos += + ((fi_len - (fibh->eoffset - fibh->soffset)) >> 2); fibh->eoffset = fibh->soffset + fi_len; - } - else - { - memcpy((uint8_t *)cfi, (uint8_t *)fi, sizeof(struct fileIdentDesc)); + } else { + memcpy((uint8_t *) cfi, (uint8_t *) fi, + sizeof(struct fileIdentDesc)); } } return fi; } -struct fileIdentDesc * -udf_get_fileident(void * buffer, int bufsize, int * offset) +struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset) { struct fileIdentDesc *fi; int lengthThisIdent; - uint8_t * ptr; + uint8_t *ptr; int padlen; - if ( (!buffer) || (!offset) ) { - udf_debug("invalidparms\n, buffer=%p, offset=%p\n", buffer, offset); + if ((!buffer) || (!offset)) { + udf_debug("invalidparms\n, buffer=%p, offset=%p\n", buffer, + offset); return NULL; } ptr = buffer; - if ( (*offset > 0) && (*offset < bufsize) ) { + if ((*offset > 0) && (*offset < bufsize)) { ptr += *offset; } - fi=(struct fileIdentDesc *)ptr; - if (le16_to_cpu(fi->descTag.tagIdent) != TAG_IDENT_FID) - { + fi = (struct fileIdentDesc *)ptr; + if (le16_to_cpu(fi->descTag.tagIdent) != TAG_IDENT_FID) { udf_debug("0x%x != TAG_IDENT_FID\n", - le16_to_cpu(fi->descTag.tagIdent)); + le16_to_cpu(fi->descTag.tagIdent)); udf_debug("offset: %u sizeof: %lu bufsize: %u\n", - *offset, (unsigned long)sizeof(struct fileIdentDesc), bufsize); + *offset, (unsigned long)sizeof(struct fileIdentDesc), + bufsize); return NULL; } - if ( (*offset + sizeof(struct fileIdentDesc)) > bufsize ) - { + if ((*offset + sizeof(struct fileIdentDesc)) > bufsize) { lengthThisIdent = sizeof(struct fileIdentDesc); - } - else + } else lengthThisIdent = sizeof(struct fileIdentDesc) + - fi->lengthFileIdent + le16_to_cpu(fi->lengthOfImpUse); + fi->lengthFileIdent + le16_to_cpu(fi->lengthOfImpUse); /* we need to figure padding, too! */ padlen = lengthThisIdent % UDF_NAME_PAD; @@ -255,56 +251,53 @@ udf_get_fileident(void * buffer, int bufsize, int * offset) } #if 0 -static extent_ad * -udf_get_fileextent(void * buffer, int bufsize, int * offset) +static extent_ad *udf_get_fileextent(void *buffer, int bufsize, int *offset) { - extent_ad * ext; + extent_ad *ext; struct fileEntry *fe; - uint8_t * ptr; + uint8_t *ptr; - if ( (!buffer) || (!offset) ) - { + if ((!buffer) || (!offset)) { printk(KERN_ERR "udf: udf_get_fileextent() invalidparms\n"); return NULL; } fe = (struct fileEntry *)buffer; - if ( le16_to_cpu(fe->descTag.tagIdent) != TAG_IDENT_FE ) - { + if (le16_to_cpu(fe->descTag.tagIdent) != TAG_IDENT_FE) { udf_debug("0x%x != TAG_IDENT_FE\n", - le16_to_cpu(fe->descTag.tagIdent)); + le16_to_cpu(fe->descTag.tagIdent)); return NULL; } - ptr=(uint8_t *)(fe->extendedAttr) + le32_to_cpu(fe->lengthExtendedAttr); + ptr = + (uint8_t *) (fe->extendedAttr) + + le32_to_cpu(fe->lengthExtendedAttr); - if ( (*offset > 0) && (*offset < le32_to_cpu(fe->lengthAllocDescs)) ) - { + if ((*offset > 0) && (*offset < le32_to_cpu(fe->lengthAllocDescs))) { ptr += *offset; } - ext = (extent_ad *)ptr; + ext = (extent_ad *) ptr; *offset = *offset + sizeof(extent_ad); return ext; } #endif -short_ad * -udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset, int inc) +short_ad *udf_get_fileshortad(uint8_t * ptr, int maxoffset, int *offset, + int inc) { short_ad *sa; - if ( (!ptr) || (!offset) ) - { + if ((!ptr) || (!offset)) { printk(KERN_ERR "udf: udf_get_fileshortad() invalidparms\n"); return NULL; } - if ( (*offset < 0) || ((*offset + sizeof(short_ad)) > maxoffset) ) + if ((*offset < 0) || ((*offset + sizeof(short_ad)) > maxoffset)) return NULL; - else if ((sa = (short_ad *)ptr)->extLength == 0) + else if ((sa = (short_ad *) ptr)->extLength == 0) return NULL; if (inc) @@ -312,20 +305,18 @@ udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset, int inc) return sa; } -long_ad * -udf_get_filelongad(uint8_t *ptr, int maxoffset, int * offset, int inc) +long_ad *udf_get_filelongad(uint8_t * ptr, int maxoffset, int *offset, int inc) { long_ad *la; - if ( (!ptr) || (!offset) ) - { + if ((!ptr) || (!offset)) { printk(KERN_ERR "udf: udf_get_filelongad() invalidparms\n"); return NULL; } - if ( (*offset < 0) || ((*offset + sizeof(long_ad)) > maxoffset) ) + if ((*offset < 0) || ((*offset + sizeof(long_ad)) > maxoffset)) return NULL; - else if ((la = (long_ad *)ptr)->extLength == 0) + else if ((la = (long_ad *) ptr)->extLength == 0) return NULL; if (inc) diff --git a/fs/udf/ecma_167.h b/fs/udf/ecma_167.h index f81f2ebbf508..294ce2daa03a 100644 --- a/fs/udf/ecma_167.h +++ b/fs/udf/ecma_167.h @@ -38,10 +38,9 @@ #define _ECMA_167_H 1 /* Character set specification (ECMA 167r3 1/7.2.1) */ -typedef struct -{ - uint8_t charSetType; - uint8_t charSetInfo[63]; +typedef struct { + uint8_t charSetType; + uint8_t charSetInfo[63]; } __attribute__ ((packed)) charspec; /* Character Set Type (ECMA 167r3 1/7.2.1.1) */ @@ -55,35 +54,33 @@ typedef struct #define CHARSPEC_TYPE_CS7 0x07 /* (1/7.2.9) */ #define CHARSPEC_TYPE_CS8 0x08 /* (1/7.2.10) */ -typedef uint8_t dstring; +typedef uint8_t dstring; /* Timestamp (ECMA 167r3 1/7.3) */ -typedef struct -{ - __le16 typeAndTimezone; - __le16 year; - uint8_t month; - uint8_t day; - uint8_t hour; - uint8_t minute; - uint8_t second; - uint8_t centiseconds; - uint8_t hundredsOfMicroseconds; - uint8_t microseconds; +typedef struct { + __le16 typeAndTimezone; + __le16 year; + uint8_t month; + uint8_t day; + uint8_t hour; + uint8_t minute; + uint8_t second; + uint8_t centiseconds; + uint8_t hundredsOfMicroseconds; + uint8_t microseconds; } __attribute__ ((packed)) timestamp; -typedef struct -{ - uint16_t typeAndTimezone; - int16_t year; - uint8_t month; - uint8_t day; - uint8_t hour; - uint8_t minute; - uint8_t second; - uint8_t centiseconds; - uint8_t hundredsOfMicroseconds; - uint8_t microseconds; +typedef struct { + uint16_t typeAndTimezone; + int16_t year; + uint8_t month; + uint8_t day; + uint8_t hour; + uint8_t minute; + uint8_t second; + uint8_t centiseconds; + uint8_t hundredsOfMicroseconds; + uint8_t microseconds; } __attribute__ ((packed)) kernel_timestamp; /* Type and Time Zone (ECMA 167r3 1/7.3.1) */ @@ -94,11 +91,10 @@ typedef struct #define TIMESTAMP_TIMEZONE_MASK 0x0FFF /* Entity identifier (ECMA 167r3 1/7.4) */ -typedef struct -{ - uint8_t flags; - uint8_t ident[23]; - uint8_t identSuffix[8]; +typedef struct { + uint8_t flags; + uint8_t ident[23]; + uint8_t identSuffix[8]; } __attribute__ ((packed)) regid; /* Flags (ECMA 167r3 1/7.4.1) */ @@ -107,12 +103,11 @@ typedef struct /* Volume Structure Descriptor (ECMA 167r3 2/9.1) */ #define VSD_STD_ID_LEN 5 -struct volStructDesc -{ - uint8_t structType; - uint8_t stdIdent[VSD_STD_ID_LEN]; - uint8_t structVersion; - uint8_t structData[2041]; +struct volStructDesc { + uint8_t structType; + uint8_t stdIdent[VSD_STD_ID_LEN]; + uint8_t structVersion; + uint8_t structData[2041]; } __attribute__ ((packed)); /* Standard Identifier (EMCA 167r2 2/9.1.2) */ @@ -127,69 +122,63 @@ struct volStructDesc #define VSD_STD_ID_TEA01 "TEA01" /* (2/9.3) */ /* Beginning Extended Area Descriptor (ECMA 167r3 2/9.2) */ -struct beginningExtendedAreaDesc -{ - uint8_t structType; - uint8_t stdIdent[VSD_STD_ID_LEN]; - uint8_t structVersion; - uint8_t structData[2041]; +struct beginningExtendedAreaDesc { + uint8_t structType; + uint8_t stdIdent[VSD_STD_ID_LEN]; + uint8_t structVersion; + uint8_t structData[2041]; } __attribute__ ((packed)); /* Terminating Extended Area Descriptor (ECMA 167r3 2/9.3) */ -struct terminatingExtendedAreaDesc -{ - uint8_t structType; - uint8_t stdIdent[VSD_STD_ID_LEN]; - uint8_t structVersion; - uint8_t structData[2041]; +struct terminatingExtendedAreaDesc { + uint8_t structType; + uint8_t stdIdent[VSD_STD_ID_LEN]; + uint8_t structVersion; + uint8_t structData[2041]; } __attribute__ ((packed)); /* Boot Descriptor (ECMA 167r3 2/9.4) */ -struct bootDesc -{ - uint8_t structType; - uint8_t stdIdent[VSD_STD_ID_LEN]; - uint8_t structVersion; - uint8_t reserved1; - regid archType; - regid bootIdent; - __le32 bootExtLocation; - __le32 bootExtLength; - __le64 loadAddress; - __le64 startAddress; - timestamp descCreationDateAndTime; - __le16 flags; - uint8_t reserved2[32]; - uint8_t bootUse[1906]; +struct bootDesc { + uint8_t structType; + uint8_t stdIdent[VSD_STD_ID_LEN]; + uint8_t structVersion; + uint8_t reserved1; + regid archType; + regid bootIdent; + __le32 bootExtLocation; + __le32 bootExtLength; + __le64 loadAddress; + __le64 startAddress; + timestamp descCreationDateAndTime; + __le16 flags; + uint8_t reserved2[32]; + uint8_t bootUse[1906]; } __attribute__ ((packed)); /* Flags (ECMA 167r3 2/9.4.12) */ #define BOOT_FLAGS_ERASE 0x01 /* Extent Descriptor (ECMA 167r3 3/7.1) */ -typedef struct -{ - __le32 extLength; - __le32 extLocation; +typedef struct { + __le32 extLength; + __le32 extLocation; } __attribute__ ((packed)) extent_ad; -typedef struct -{ - uint32_t extLength; - uint32_t extLocation; +typedef struct { + uint32_t extLength; + uint32_t extLocation; } kernel_extent_ad; /* Descriptor Tag (ECMA 167r3 3/7.2) */ -typedef struct -{ - __le16 tagIdent; - __le16 descVersion; - uint8_t tagChecksum; - uint8_t reserved; - __le16 tagSerialNum; - __le16 descCRC; - __le16 descCRCLength; - __le32 tagLocation; +typedef struct { + __le16 tagIdent; + __le16 descVersion; + uint8_t tagChecksum; + uint8_t reserved; + __le16 tagSerialNum; + __le16 descCRC; + __le16 descCRCLength; + __le32 tagLocation; } __attribute__ ((packed)) tag; /* Tag Identifier (ECMA 167r3 3/7.2.1) */ @@ -204,87 +193,81 @@ typedef struct #define TAG_IDENT_LVID 0x0009 /* NSR Descriptor (ECMA 167r3 3/9.1) */ -struct NSRDesc -{ - uint8_t structType; - uint8_t stdIdent[VSD_STD_ID_LEN]; - uint8_t structVersion; - uint8_t reserved; - uint8_t structData[2040]; -} __attribute__ ((packed)); - +struct NSRDesc { + uint8_t structType; + uint8_t stdIdent[VSD_STD_ID_LEN]; + uint8_t structVersion; + uint8_t reserved; + uint8_t structData[2040]; +} __attribute__ ((packed)); + /* Primary Volume Descriptor (ECMA 167r3 3/10.1) */ -struct primaryVolDesc -{ - tag descTag; - __le32 volDescSeqNum; - __le32 primaryVolDescNum; - dstring volIdent[32]; - __le16 volSeqNum; - __le16 maxVolSeqNum; - __le16 interchangeLvl; - __le16 maxInterchangeLvl; - __le32 charSetList; - __le32 maxCharSetList; - dstring volSetIdent[128]; - charspec descCharSet; - charspec explanatoryCharSet; - extent_ad volAbstract; - extent_ad volCopyright; - regid appIdent; - timestamp recordingDateAndTime; - regid impIdent; - uint8_t impUse[64]; - __le32 predecessorVolDescSeqLocation; - __le16 flags; - uint8_t reserved[22]; +struct primaryVolDesc { + tag descTag; + __le32 volDescSeqNum; + __le32 primaryVolDescNum; + dstring volIdent[32]; + __le16 volSeqNum; + __le16 maxVolSeqNum; + __le16 interchangeLvl; + __le16 maxInterchangeLvl; + __le32 charSetList; + __le32 maxCharSetList; + dstring volSetIdent[128]; + charspec descCharSet; + charspec explanatoryCharSet; + extent_ad volAbstract; + extent_ad volCopyright; + regid appIdent; + timestamp recordingDateAndTime; + regid impIdent; + uint8_t impUse[64]; + __le32 predecessorVolDescSeqLocation; + __le16 flags; + uint8_t reserved[22]; } __attribute__ ((packed)); /* Flags (ECMA 167r3 3/10.1.21) */ #define PVD_FLAGS_VSID_COMMON 0x0001 /* Anchor Volume Descriptor Pointer (ECMA 167r3 3/10.2) */ -struct anchorVolDescPtr -{ - tag descTag; - extent_ad mainVolDescSeqExt; - extent_ad reserveVolDescSeqExt; - uint8_t reserved[480]; +struct anchorVolDescPtr { + tag descTag; + extent_ad mainVolDescSeqExt; + extent_ad reserveVolDescSeqExt; + uint8_t reserved[480]; } __attribute__ ((packed)); /* Volume Descriptor Pointer (ECMA 167r3 3/10.3) */ -struct volDescPtr -{ - tag descTag; - __le32 volDescSeqNum; - extent_ad nextVolDescSeqExt; - uint8_t reserved[484]; +struct volDescPtr { + tag descTag; + __le32 volDescSeqNum; + extent_ad nextVolDescSeqExt; + uint8_t reserved[484]; } __attribute__ ((packed)); /* Implementation Use Volume Descriptor (ECMA 167r3 3/10.4) */ -struct impUseVolDesc -{ - tag descTag; - __le32 volDescSeqNum; - regid impIdent; - uint8_t impUse[460]; +struct impUseVolDesc { + tag descTag; + __le32 volDescSeqNum; + regid impIdent; + uint8_t impUse[460]; } __attribute__ ((packed)); /* Partition Descriptor (ECMA 167r3 3/10.5) */ -struct partitionDesc -{ - tag descTag; - __le32 volDescSeqNum; - __le16 partitionFlags; - __le16 partitionNumber; - regid partitionContents; - uint8_t partitionContentsUse[128]; - __le32 accessType; - __le32 partitionStartingLocation; - __le32 partitionLength; - regid impIdent; - uint8_t impUse[128]; - uint8_t reserved[156]; +struct partitionDesc { + tag descTag; + __le32 volDescSeqNum; + __le16 partitionFlags; + __le16 partitionNumber; + regid partitionContents; + uint8_t partitionContentsUse[128]; + __le32 accessType; + __le32 partitionStartingLocation; + __le32 partitionLength; + regid impIdent; + uint8_t impUse[128]; + uint8_t reserved[156]; } __attribute__ ((packed)); /* Partition Flags (ECMA 167r3 3/10.5.3) */ @@ -307,29 +290,27 @@ struct partitionDesc #define PD_ACCESS_TYPE_OVERWRITABLE 0x00000004 /* Logical Volume Descriptor (ECMA 167r3 3/10.6) */ -struct logicalVolDesc -{ - tag descTag; - __le32 volDescSeqNum; - charspec descCharSet; - dstring logicalVolIdent[128]; - __le32 logicalBlockSize; - regid domainIdent; - uint8_t logicalVolContentsUse[16]; - __le32 mapTableLength; - __le32 numPartitionMaps; - regid impIdent; - uint8_t impUse[128]; - extent_ad integritySeqExt; - uint8_t partitionMaps[0]; +struct logicalVolDesc { + tag descTag; + __le32 volDescSeqNum; + charspec descCharSet; + dstring logicalVolIdent[128]; + __le32 logicalBlockSize; + regid domainIdent; + uint8_t logicalVolContentsUse[16]; + __le32 mapTableLength; + __le32 numPartitionMaps; + regid impIdent; + uint8_t impUse[128]; + extent_ad integritySeqExt; + uint8_t partitionMaps[0]; } __attribute__ ((packed)); /* Generic Partition Map (ECMA 167r3 3/10.7.1) */ -struct genericPartitionMap -{ - uint8_t partitionMapType; - uint8_t partitionMapLength; - uint8_t partitionMapping[0]; +struct genericPartitionMap { + uint8_t partitionMapType; + uint8_t partitionMapLength; + uint8_t partitionMapping[0]; } __attribute__ ((packed)); /* Partition Map Type (ECMA 167r3 3/10.7.1.1) */ @@ -338,51 +319,46 @@ struct genericPartitionMap #define GP_PARTITION_MAP_TYPE_2 0x02 /* Type 1 Partition Map (ECMA 167r3 3/10.7.2) */ -struct genericPartitionMap1 -{ - uint8_t partitionMapType; - uint8_t partitionMapLength; - __le16 volSeqNum; - __le16 partitionNum; +struct genericPartitionMap1 { + uint8_t partitionMapType; + uint8_t partitionMapLength; + __le16 volSeqNum; + __le16 partitionNum; } __attribute__ ((packed)); /* Type 2 Partition Map (ECMA 167r3 3/10.7.3) */ -struct genericPartitionMap2 -{ - uint8_t partitionMapType; - uint8_t partitionMapLength; - uint8_t partitionIdent[62]; +struct genericPartitionMap2 { + uint8_t partitionMapType; + uint8_t partitionMapLength; + uint8_t partitionIdent[62]; } __attribute__ ((packed)); /* Unallocated Space Descriptor (ECMA 167r3 3/10.8) */ -struct unallocSpaceDesc -{ - tag descTag; - __le32 volDescSeqNum; - __le32 numAllocDescs; - extent_ad allocDescs[0]; +struct unallocSpaceDesc { + tag descTag; + __le32 volDescSeqNum; + __le32 numAllocDescs; + extent_ad allocDescs[0]; } __attribute__ ((packed)); /* Terminating Descriptor (ECMA 167r3 3/10.9) */ -struct terminatingDesc -{ - tag descTag; - uint8_t reserved[496]; +struct terminatingDesc { + tag descTag; + uint8_t reserved[496]; } __attribute__ ((packed)); /* Logical Volume Integrity Descriptor (ECMA 167r3 3/10.10) */ -struct logicalVolIntegrityDesc -{ - tag descTag; - timestamp recordingDateAndTime; - __le32 integrityType; - extent_ad nextIntegrityExt; - uint8_t logicalVolContentsUse[32]; - __le32 numOfPartitions; - __le32 lengthOfImpUse; - __le32 freeSpaceTable[0]; - __le32 sizeTable[0]; - uint8_t impUse[0]; +struct logicalVolIntegrityDesc { + tag descTag; + timestamp recordingDateAndTime; + __le32 integrityType; + extent_ad nextIntegrityExt; + uint8_t logicalVolContentsUse[32]; + __le32 numOfPartitions; + __le32 lengthOfImpUse; + __le32 freeSpaceTable[0]; + __le32 sizeTable[0]; + uint8_t impUse[0]; } __attribute__ ((packed)); /* Integrity Type (ECMA 167r3 3/10.10.3) */ @@ -390,56 +366,49 @@ struct logicalVolIntegrityDesc #define LVID_INTEGRITY_TYPE_CLOSE 0x00000001 /* Recorded Address (ECMA 167r3 4/7.1) */ -typedef struct -{ - __le32 logicalBlockNum; - __le16 partitionReferenceNum; +typedef struct { + __le32 logicalBlockNum; + __le16 partitionReferenceNum; } __attribute__ ((packed)) lb_addr; /* ... and its in-core analog */ -typedef struct -{ - uint32_t logicalBlockNum; - uint16_t partitionReferenceNum; +typedef struct { + uint32_t logicalBlockNum; + uint16_t partitionReferenceNum; } kernel_lb_addr; /* Short Allocation Descriptor (ECMA 167r3 4/14.14.1) */ -typedef struct -{ - __le32 extLength; - __le32 extPosition; +typedef struct { + __le32 extLength; + __le32 extPosition; } __attribute__ ((packed)) short_ad; /* Long Allocation Descriptor (ECMA 167r3 4/14.14.2) */ -typedef struct -{ - __le32 extLength; - lb_addr extLocation; - uint8_t impUse[6]; +typedef struct { + __le32 extLength; + lb_addr extLocation; + uint8_t impUse[6]; } __attribute__ ((packed)) long_ad; -typedef struct -{ - uint32_t extLength; - kernel_lb_addr extLocation; - uint8_t impUse[6]; +typedef struct { + uint32_t extLength; + kernel_lb_addr extLocation; + uint8_t impUse[6]; } kernel_long_ad; /* Extended Allocation Descriptor (ECMA 167r3 4/14.14.3) */ -typedef struct -{ - __le32 extLength; - __le32 recordedLength; - __le32 informationLength; - lb_addr extLocation; +typedef struct { + __le32 extLength; + __le32 recordedLength; + __le32 informationLength; + lb_addr extLocation; } __attribute__ ((packed)) ext_ad; -typedef struct -{ - uint32_t extLength; - uint32_t recordedLength; - uint32_t informationLength; - kernel_lb_addr extLocation; +typedef struct { + uint32_t extLength; + uint32_t recordedLength; + uint32_t informationLength; + kernel_lb_addr extLocation; } kernel_ext_ad; /* Descriptor Tag (ECMA 167r3 4/7.2 - See 3/7.2) */ @@ -458,52 +427,49 @@ typedef struct #define TAG_IDENT_EFE 0x010A /* File Set Descriptor (ECMA 167r3 4/14.1) */ -struct fileSetDesc -{ - tag descTag; - timestamp recordingDateAndTime; - __le16 interchangeLvl; - __le16 maxInterchangeLvl; - __le32 charSetList; - __le32 maxCharSetList; - __le32 fileSetNum; - __le32 fileSetDescNum; - charspec logicalVolIdentCharSet; - dstring logicalVolIdent[128]; - charspec fileSetCharSet; - dstring fileSetIdent[32]; - dstring copyrightFileIdent[32]; - dstring abstractFileIdent[32]; - long_ad rootDirectoryICB; - regid domainIdent; - long_ad nextExt; - long_ad streamDirectoryICB; - uint8_t reserved[32]; +struct fileSetDesc { + tag descTag; + timestamp recordingDateAndTime; + __le16 interchangeLvl; + __le16 maxInterchangeLvl; + __le32 charSetList; + __le32 maxCharSetList; + __le32 fileSetNum; + __le32 fileSetDescNum; + charspec logicalVolIdentCharSet; + dstring logicalVolIdent[128]; + charspec fileSetCharSet; + dstring fileSetIdent[32]; + dstring copyrightFileIdent[32]; + dstring abstractFileIdent[32]; + long_ad rootDirectoryICB; + regid domainIdent; + long_ad nextExt; + long_ad streamDirectoryICB; + uint8_t reserved[32]; } __attribute__ ((packed)); /* Partition Header Descriptor (ECMA 167r3 4/14.3) */ -struct partitionHeaderDesc -{ - short_ad unallocSpaceTable; - short_ad unallocSpaceBitmap; - short_ad partitionIntegrityTable; - short_ad freedSpaceTable; - short_ad freedSpaceBitmap; - uint8_t reserved[88]; +struct partitionHeaderDesc { + short_ad unallocSpaceTable; + short_ad unallocSpaceBitmap; + short_ad partitionIntegrityTable; + short_ad freedSpaceTable; + short_ad freedSpaceBitmap; + uint8_t reserved[88]; } __attribute__ ((packed)); /* File Identifier Descriptor (ECMA 167r3 4/14.4) */ -struct fileIdentDesc -{ - tag descTag; - __le16 fileVersionNum; - uint8_t fileCharacteristics; - uint8_t lengthFileIdent; - long_ad icb; - __le16 lengthOfImpUse; - uint8_t impUse[0]; - uint8_t fileIdent[0]; - uint8_t padding[0]; +struct fileIdentDesc { + tag descTag; + __le16 fileVersionNum; + uint8_t fileCharacteristics; + uint8_t lengthFileIdent; + long_ad icb; + __le16 lengthOfImpUse; + uint8_t impUse[0]; + uint8_t fileIdent[0]; + uint8_t padding[0]; } __attribute__ ((packed)); /* File Characteristics (ECMA 167r3 4/14.4.3) */ @@ -514,24 +480,22 @@ struct fileIdentDesc #define FID_FILE_CHAR_METADATA 0x10 /* Allocation Ext Descriptor (ECMA 167r3 4/14.5) */ -struct allocExtDesc -{ - tag descTag; - __le32 previousAllocExtLocation; - __le32 lengthAllocDescs; +struct allocExtDesc { + tag descTag; + __le32 previousAllocExtLocation; + __le32 lengthAllocDescs; } __attribute__ ((packed)); /* ICB Tag (ECMA 167r3 4/14.6) */ -typedef struct -{ - __le32 priorRecordedNumDirectEntries; - __le16 strategyType; - __le16 strategyParameter; - __le16 numEntries; - uint8_t reserved; - uint8_t fileType; - lb_addr parentICBLocation; - __le16 flags; +typedef struct { + __le32 priorRecordedNumDirectEntries; + __le16 strategyType; + __le16 strategyParameter; + __le16 numEntries; + uint8_t reserved; + uint8_t fileType; + lb_addr parentICBLocation; + __le16 flags; } __attribute__ ((packed)) icbtag; /* Strategy Type (ECMA 167r3 4/14.6.2) */ @@ -576,45 +540,42 @@ typedef struct #define ICBTAG_FLAG_STREAM 0x2000 /* Indirect Entry (ECMA 167r3 4/14.7) */ -struct indirectEntry -{ - tag descTag; - icbtag icbTag; - long_ad indirectICB; +struct indirectEntry { + tag descTag; + icbtag icbTag; + long_ad indirectICB; } __attribute__ ((packed)); /* Terminal Entry (ECMA 167r3 4/14.8) */ -struct terminalEntry -{ - tag descTag; - icbtag icbTag; +struct terminalEntry { + tag descTag; + icbtag icbTag; } __attribute__ ((packed)); /* File Entry (ECMA 167r3 4/14.9) */ -struct fileEntry -{ - tag descTag; - icbtag icbTag; - __le32 uid; - __le32 gid; - __le32 permissions; - __le16 fileLinkCount; - uint8_t recordFormat; - uint8_t recordDisplayAttr; - __le32 recordLength; - __le64 informationLength; - __le64 logicalBlocksRecorded; - timestamp accessTime; - timestamp modificationTime; - timestamp attrTime; - __le32 checkpoint; - long_ad extendedAttrICB; - regid impIdent; - __le64 uniqueID; - __le32 lengthExtendedAttr; - __le32 lengthAllocDescs; - uint8_t extendedAttr[0]; - uint8_t allocDescs[0]; +struct fileEntry { + tag descTag; + icbtag icbTag; + __le32 uid; + __le32 gid; + __le32 permissions; + __le16 fileLinkCount; + uint8_t recordFormat; + uint8_t recordDisplayAttr; + __le32 recordLength; + __le64 informationLength; + __le64 logicalBlocksRecorded; + timestamp accessTime; + timestamp modificationTime; + timestamp attrTime; + __le32 checkpoint; + long_ad extendedAttrICB; + regid impIdent; + __le64 uniqueID; + __le32 lengthExtendedAttr; + __le32 lengthAllocDescs; + uint8_t extendedAttr[0]; + uint8_t allocDescs[0]; } __attribute__ ((packed)); /* Permissions (ECMA 167r3 4/14.9.5) */ @@ -655,57 +616,52 @@ struct fileEntry #define FE_RECORD_DISPLAY_ATTR_3 0x03 /* Extended Attribute Header Descriptor (ECMA 167r3 4/14.10.1) */ -struct extendedAttrHeaderDesc -{ - tag descTag; - __le32 impAttrLocation; - __le32 appAttrLocation; +struct extendedAttrHeaderDesc { + tag descTag; + __le32 impAttrLocation; + __le32 appAttrLocation; } __attribute__ ((packed)); /* Generic Format (ECMA 167r3 4/14.10.2) */ -struct genericFormat -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - uint8_t attrData[0]; +struct genericFormat { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + uint8_t attrData[0]; } __attribute__ ((packed)); /* Character Set Information (ECMA 167r3 4/14.10.3) */ -struct charSetInfo -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - __le32 escapeSeqLength; - uint8_t charSetType; - uint8_t escapeSeq[0]; +struct charSetInfo { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + __le32 escapeSeqLength; + uint8_t charSetType; + uint8_t escapeSeq[0]; } __attribute__ ((packed)); /* Alternate Permissions (ECMA 167r3 4/14.10.4) */ -struct altPerms -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - __le16 ownerIdent; - __le16 groupIdent; - __le16 permission; +struct altPerms { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + __le16 ownerIdent; + __le16 groupIdent; + __le16 permission; } __attribute__ ((packed)); /* File Times Extended Attribute (ECMA 167r3 4/14.10.5) */ -struct fileTimesExtAttr -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - __le32 dataLength; - __le32 fileTimeExistence; - uint8_t fileTimes; +struct fileTimesExtAttr { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + __le32 dataLength; + __le32 fileTimeExistence; + uint8_t fileTimes; } __attribute__ ((packed)); /* FileTimeExistence (ECMA 167r3 4/14.10.5.6) */ @@ -715,52 +671,48 @@ struct fileTimesExtAttr #define FTE_BACKUP 0x00000002 /* Information Times Extended Attribute (ECMA 167r3 4/14.10.6) */ -struct infoTimesExtAttr -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - __le32 dataLength; - __le32 infoTimeExistence; - uint8_t infoTimes[0]; +struct infoTimesExtAttr { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + __le32 dataLength; + __le32 infoTimeExistence; + uint8_t infoTimes[0]; } __attribute__ ((packed)); /* Device Specification (ECMA 167r3 4/14.10.7) */ -struct deviceSpec -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - __le32 impUseLength; - __le32 majorDeviceIdent; - __le32 minorDeviceIdent; - uint8_t impUse[0]; +struct deviceSpec { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + __le32 impUseLength; + __le32 majorDeviceIdent; + __le32 minorDeviceIdent; + uint8_t impUse[0]; } __attribute__ ((packed)); /* Implementation Use Extended Attr (ECMA 167r3 4/14.10.8) */ -struct impUseExtAttr -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - __le32 impUseLength; - regid impIdent; - uint8_t impUse[0]; +struct impUseExtAttr { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + __le32 impUseLength; + regid impIdent; + uint8_t impUse[0]; } __attribute__ ((packed)); /* Application Use Extended Attribute (ECMA 167r3 4/14.10.9) */ -struct appUseExtAttr -{ - __le32 attrType; - uint8_t attrSubtype; - uint8_t reserved[3]; - __le32 attrLength; - __le32 appUseLength; - regid appIdent; - uint8_t appUse[0]; +struct appUseExtAttr { + __le32 attrType; + uint8_t attrSubtype; + uint8_t reserved[3]; + __le32 attrLength; + __le32 appUseLength; + regid appIdent; + uint8_t appUse[0]; } __attribute__ ((packed)); #define EXTATTR_CHAR_SET 1 @@ -771,35 +723,31 @@ struct appUseExtAttr #define EXTATTR_IMP_USE 2048 #define EXTATTR_APP_USE 65536 - /* Unallocated Space Entry (ECMA 167r3 4/14.11) */ -struct unallocSpaceEntry -{ - tag descTag; - icbtag icbTag; - __le32 lengthAllocDescs; - uint8_t allocDescs[0]; +struct unallocSpaceEntry { + tag descTag; + icbtag icbTag; + __le32 lengthAllocDescs; + uint8_t allocDescs[0]; } __attribute__ ((packed)); /* Space Bitmap Descriptor (ECMA 167r3 4/14.12) */ -struct spaceBitmapDesc -{ - tag descTag; - __le32 numOfBits; - __le32 numOfBytes; - uint8_t bitmap[0]; +struct spaceBitmapDesc { + tag descTag; + __le32 numOfBits; + __le32 numOfBytes; + uint8_t bitmap[0]; } __attribute__ ((packed)); /* Partition Integrity Entry (ECMA 167r3 4/14.13) */ -struct partitionIntegrityEntry -{ - tag descTag; - icbtag icbTag; - timestamp recordingDateAndTime; - uint8_t integrityType; - uint8_t reserved[175]; - regid impIdent; - uint8_t impUse[256]; +struct partitionIntegrityEntry { + tag descTag; + icbtag icbTag; + timestamp recordingDateAndTime; + uint8_t integrityType; + uint8_t reserved[175]; + regid impIdent; + uint8_t impUse[256]; } __attribute__ ((packed)); /* Short Allocation Descriptor (ECMA 167r3 4/14.14.1) */ @@ -815,50 +763,47 @@ struct partitionIntegrityEntry /* Extended Allocation Descriptor (ECMA 167r3 4/14.14.3) */ /* Logical Volume Header Descriptor (ECMA 167r3 4/14.15) */ -struct logicalVolHeaderDesc -{ - __le64 uniqueID; - uint8_t reserved[24]; +struct logicalVolHeaderDesc { + __le64 uniqueID; + uint8_t reserved[24]; } __attribute__ ((packed)); /* Path Component (ECMA 167r3 4/14.16.1) */ -struct pathComponent -{ - uint8_t componentType; - uint8_t lengthComponentIdent; - __le16 componentFileVersionNum; - dstring componentIdent[0]; +struct pathComponent { + uint8_t componentType; + uint8_t lengthComponentIdent; + __le16 componentFileVersionNum; + dstring componentIdent[0]; } __attribute__ ((packed)); /* File Entry (ECMA 167r3 4/14.17) */ -struct extendedFileEntry -{ - tag descTag; - icbtag icbTag; - __le32 uid; - __le32 gid; - __le32 permissions; - __le16 fileLinkCount; - uint8_t recordFormat; - uint8_t recordDisplayAttr; - __le32 recordLength; - __le64 informationLength; - __le64 objectSize; - __le64 logicalBlocksRecorded; - timestamp accessTime; - timestamp modificationTime; - timestamp createTime; - timestamp attrTime; - __le32 checkpoint; - __le32 reserved; - long_ad extendedAttrICB; - long_ad streamDirectoryICB; - regid impIdent; - __le64 uniqueID; - __le32 lengthExtendedAttr; - __le32 lengthAllocDescs; - uint8_t extendedAttr[0]; - uint8_t allocDescs[0]; -} __attribute__ ((packed)); - -#endif /* _ECMA_167_H */ +struct extendedFileEntry { + tag descTag; + icbtag icbTag; + __le32 uid; + __le32 gid; + __le32 permissions; + __le16 fileLinkCount; + uint8_t recordFormat; + uint8_t recordDisplayAttr; + __le32 recordLength; + __le64 informationLength; + __le64 objectSize; + __le64 logicalBlocksRecorded; + timestamp accessTime; + timestamp modificationTime; + timestamp createTime; + timestamp attrTime; + __le32 checkpoint; + __le32 reserved; + long_ad extendedAttrICB; + long_ad streamDirectoryICB; + regid impIdent; + __le64 uniqueID; + __le32 lengthExtendedAttr; + __le32 lengthAllocDescs; + uint8_t extendedAttr[0]; + uint8_t allocDescs[0]; +} __attribute__ ((packed)); + +#endif /* _ECMA_167_H */ diff --git a/fs/udf/file.c b/fs/udf/file.c index df070bee8d4f..67bf36bd3e6e 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -30,7 +30,7 @@ #include <linux/udf_fs.h> #include <asm/uaccess.h> #include <linux/kernel.h> -#include <linux/string.h> /* memset */ +#include <linux/string.h> /* memset */ #include <linux/capability.h> #include <linux/errno.h> #include <linux/smp_lock.h> @@ -41,7 +41,7 @@ #include "udf_i.h" #include "udf_sb.h" -static int udf_adinicb_readpage(struct file *file, struct page * page) +static int udf_adinicb_readpage(struct file *file, struct page *page) { struct inode *inode = page->mapping->host; char *kaddr; @@ -58,7 +58,8 @@ static int udf_adinicb_readpage(struct file *file, struct page * page) return 0; } -static int udf_adinicb_writepage(struct page *page, struct writeback_control *wbc) +static int udf_adinicb_writepage(struct page *page, + struct writeback_control *wbc) { struct inode *inode = page->mapping->host; char *kaddr; @@ -74,19 +75,21 @@ static int udf_adinicb_writepage(struct page *page, struct writeback_control *wb return 0; } -static int udf_adinicb_prepare_write(struct file *file, struct page *page, unsigned offset, unsigned to) +static int udf_adinicb_prepare_write(struct file *file, struct page *page, + unsigned offset, unsigned to) { kmap(page); return 0; } -static int udf_adinicb_commit_write(struct file *file, struct page *page, unsigned offset, unsigned to) +static int udf_adinicb_commit_write(struct file *file, struct page *page, + unsigned offset, unsigned to) { struct inode *inode = page->mapping->host; char *kaddr = page_address(page); memcpy(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset, - kaddr + offset, to - offset); + kaddr + offset, to - offset); mark_inode_dirty(inode); SetPageUptodate(page); kunmap(page); @@ -97,15 +100,15 @@ static int udf_adinicb_commit_write(struct file *file, struct page *page, unsign } const struct address_space_operations udf_adinicb_aops = { - .readpage = udf_adinicb_readpage, - .writepage = udf_adinicb_writepage, - .sync_page = block_sync_page, - .prepare_write = udf_adinicb_prepare_write, - .commit_write = udf_adinicb_commit_write, + .readpage = udf_adinicb_readpage, + .writepage = udf_adinicb_writepage, + .sync_page = block_sync_page, + .prepare_write = udf_adinicb_prepare_write, + .commit_write = udf_adinicb_commit_write, }; static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t ppos) + unsigned long nr_segs, loff_t ppos) { ssize_t retval; struct file *file = iocb->ki_filp; @@ -113,25 +116,20 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov, int err, pos; size_t count = iocb->ki_left; - if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) { if (file->f_flags & O_APPEND) pos = inode->i_size; else pos = ppos; - if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) + - pos + count)) - { + if (inode->i_sb->s_blocksize < + (udf_file_entry_alloc_offset(inode) + pos + count)) { udf_expand_file_adinicb(inode, pos + count, &err); - if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) { udf_debug("udf_expand_adinicb: err=%d\n", err); return err; } - } - else - { + } else { if (pos + count > inode->i_size) UDF_I_LENALLOC(inode) = pos + count; else @@ -181,48 +179,47 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov, * Written, tested, and released. */ int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) + unsigned long arg) { int result = -EINVAL; - if ( file_permission(filp, MAY_READ) != 0 ) - { - udf_debug("no permission to access inode %lu\n", - inode->i_ino); + if (file_permission(filp, MAY_READ) != 0) { + udf_debug("no permission to access inode %lu\n", inode->i_ino); return -EPERM; } - if ( !arg ) - { + if (!arg) { udf_debug("invalid argument to udf_ioctl\n"); return -EINVAL; } - switch (cmd) - { - case UDF_GETVOLIDENT: - return copy_to_user((char __user *)arg, - UDF_SB_VOLIDENT(inode->i_sb), 32) ? -EFAULT : 0; - case UDF_RELOCATE_BLOCKS: + switch (cmd) { + case UDF_GETVOLIDENT: + return copy_to_user((char __user *)arg, + UDF_SB_VOLIDENT(inode->i_sb), + 32) ? -EFAULT : 0; + case UDF_RELOCATE_BLOCKS: { long old, new; - if (!capable(CAP_SYS_ADMIN)) return -EACCES; - if (get_user(old, (long __user *)arg)) return -EFAULT; + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + if (get_user(old, (long __user *)arg)) + return -EFAULT; if ((result = udf_relocate_blocks(inode->i_sb, - old, &new)) == 0) + old, &new)) == 0) result = put_user(new, (long __user *)arg); return result; } - case UDF_GETEASIZE: - result = put_user(UDF_I_LENEATTR(inode), (int __user *)arg); - break; + case UDF_GETEASIZE: + result = put_user(UDF_I_LENEATTR(inode), (int __user *)arg); + break; - case UDF_GETEABLOCK: - result = copy_to_user((char __user *)arg, UDF_I_DATA(inode), - UDF_I_LENEATTR(inode)) ? -EFAULT : 0; - break; + case UDF_GETEABLOCK: + result = copy_to_user((char __user *)arg, UDF_I_DATA(inode), + UDF_I_LENEATTR(inode)) ? -EFAULT : 0; + break; } return result; @@ -240,10 +237,9 @@ int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, * HISTORY * */ -static int udf_release_file(struct inode * inode, struct file * filp) +static int udf_release_file(struct inode *inode, struct file *filp) { - if (filp->f_mode & FMODE_WRITE) - { + if (filp->f_mode & FMODE_WRITE) { lock_kernel(); udf_discard_prealloc(inode); unlock_kernel(); @@ -252,18 +248,18 @@ static int udf_release_file(struct inode * inode, struct file * filp) } const struct file_operations udf_file_operations = { - .read = do_sync_read, - .aio_read = generic_file_aio_read, - .ioctl = udf_ioctl, - .open = generic_file_open, - .mmap = generic_file_mmap, - .write = do_sync_write, - .aio_write = udf_file_aio_write, - .release = udf_release_file, - .fsync = udf_fsync_file, - .splice_read = generic_file_splice_read, + .read = do_sync_read, + .aio_read = generic_file_aio_read, + .ioctl = udf_ioctl, + .open = generic_file_open, + .mmap = generic_file_mmap, + .write = do_sync_write, + .aio_write = udf_file_aio_write, + .release = udf_release_file, + .fsync = udf_fsync_file, + .splice_read = generic_file_splice_read, }; const struct inode_operations udf_file_inode_operations = { - .truncate = udf_truncate, + .truncate = udf_truncate, }; diff --git a/fs/udf/fsync.c b/fs/udf/fsync.c index 6ded93e7c44f..7f0901c4f1f1 100644 --- a/fs/udf/fsync.c +++ b/fs/udf/fsync.c @@ -29,7 +29,7 @@ static int udf_fsync_inode(struct inode *, int); * even pass file to fsync ? */ -int udf_fsync_file(struct file * file, struct dentry *dentry, int datasync) +int udf_fsync_file(struct file *file, struct dentry *dentry, int datasync) { struct inode *inode = dentry->d_inode; return udf_fsync_inode(inode, datasync); @@ -45,6 +45,6 @@ static int udf_fsync_inode(struct inode *inode, int datasync) if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) return err; - err |= udf_sync_inode (inode); + err |= udf_sync_inode(inode); return err ? -EIO : 0; } diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c index 10f3188738af..2eb503806bce 100644 --- a/fs/udf/ialloc.c +++ b/fs/udf/ialloc.c @@ -28,7 +28,7 @@ #include "udf_i.h" #include "udf_sb.h" -void udf_free_inode(struct inode * inode) +void udf_free_inode(struct inode *inode) { struct super_block *sb = inode->i_sb; struct udf_sb_info *sbi = UDF_SB(sb); @@ -46,10 +46,12 @@ void udf_free_inode(struct inode * inode) if (sbi->s_lvidbh) { if (S_ISDIR(inode->i_mode)) UDF_SB_LVIDIU(sb)->numDirs = - cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) - 1); + cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + - 1); else UDF_SB_LVIDIU(sb)->numFiles = - cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) - 1); + cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + - 1); mark_buffer_dirty(sbi->s_lvidbh); } @@ -58,18 +60,17 @@ void udf_free_inode(struct inode * inode) udf_free_blocks(sb, NULL, UDF_I_LOCATION(inode), 0, 1); } -struct inode * udf_new_inode (struct inode *dir, int mode, int * err) +struct inode *udf_new_inode(struct inode *dir, int mode, int *err) { struct super_block *sb = dir->i_sb; struct udf_sb_info *sbi = UDF_SB(sb); - struct inode * inode; + struct inode *inode; int block; uint32_t start = UDF_I_LOCATION(dir).logicalBlockNum; inode = new_inode(sb); - if (!inode) - { + if (!inode) { *err = -ENOMEM; return NULL; } @@ -81,26 +82,30 @@ struct inode * udf_new_inode (struct inode *dir, int mode, int * err) UDF_I_NEXT_ALLOC_GOAL(inode) = 0; UDF_I_STRAT4096(inode) = 0; - block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum, - start, err); - if (*err) - { + block = + udf_new_block(dir->i_sb, NULL, + UDF_I_LOCATION(dir).partitionReferenceNum, start, + err); + if (*err) { iput(inode); return NULL; } mutex_lock(&sbi->s_alloc_mutex); - if (UDF_SB_LVIDBH(sb)) - { + if (UDF_SB_LVIDBH(sb)) { struct logicalVolHeaderDesc *lvhd; uint64_t uniqueID; - lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(sb)->logicalVolContentsUse); + lvhd = + (struct logicalVolHeaderDesc *)(UDF_SB_LVID(sb)-> + logicalVolContentsUse); if (S_ISDIR(mode)) UDF_SB_LVIDIU(sb)->numDirs = - cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + 1); + cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + + 1); else UDF_SB_LVIDIU(sb)->numFiles = - cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + 1); + cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + + 1); UDF_I_UNIQUE(inode) = uniqueID = le64_to_cpu(lvhd->uniqueID); if (!(++uniqueID & 0x00000000FFFFFFFFUL)) uniqueID += 16; @@ -109,35 +114,34 @@ struct inode * udf_new_inode (struct inode *dir, int mode, int * err) } inode->i_mode = mode; inode->i_uid = current->fsuid; - if (dir->i_mode & S_ISGID) - { + if (dir->i_mode & S_ISGID) { inode->i_gid = dir->i_gid; if (S_ISDIR(mode)) mode |= S_ISGID; - } - else + } else inode->i_gid = current->fsgid; UDF_I_LOCATION(inode).logicalBlockNum = block; - UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum; + UDF_I_LOCATION(inode).partitionReferenceNum = + UDF_I_LOCATION(dir).partitionReferenceNum; inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0); inode->i_blocks = 0; UDF_I_LENEATTR(inode) = 0; UDF_I_LENALLOC(inode) = 0; UDF_I_USE(inode) = 0; - if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) - { + if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE)) { UDF_I_EFE(inode) = 1; UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE); - UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL); - } - else - { + UDF_I_DATA(inode) = + kzalloc(inode->i_sb->s_blocksize - + sizeof(struct extendedFileEntry), GFP_KERNEL); + } else { UDF_I_EFE(inode) = 0; - UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL); + UDF_I_DATA(inode) = + kzalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), + GFP_KERNEL); } - if (!UDF_I_DATA(inode)) - { + if (!UDF_I_DATA(inode)) { iput(inode); *err = -ENOMEM; mutex_unlock(&sbi->s_alloc_mutex); @@ -150,13 +154,12 @@ struct inode * udf_new_inode (struct inode *dir, int mode, int * err) else UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG; inode->i_mtime = inode->i_atime = inode->i_ctime = - UDF_I_CRTIME(inode) = current_fs_time(inode->i_sb); + UDF_I_CRTIME(inode) = current_fs_time(inode->i_sb); insert_inode_hash(inode); mark_inode_dirty(inode); mutex_unlock(&sbi->s_alloc_mutex); - if (DQUOT_ALLOC_INODE(inode)) - { + if (DQUOT_ALLOC_INODE(inode)) { DQUOT_DROP(inode); inode->i_flags |= S_NOQUOTA; inode->i_nlink = 0; diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 5b82e489af78..be6326f449a1 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -51,18 +51,18 @@ static int udf_update_inode(struct inode *, int); static void udf_fill_inode(struct inode *, struct buffer_head *); static int udf_alloc_i_data(struct inode *inode, size_t size); static struct buffer_head *inode_getblk(struct inode *, sector_t, int *, - long *, int *); + long *, int *); static int8_t udf_insert_aext(struct inode *, struct extent_position, - kernel_lb_addr, uint32_t); + kernel_lb_addr, uint32_t); static void udf_split_extents(struct inode *, int *, int, int, - kernel_long_ad [EXTENT_MERGE_SIZE], int *); + kernel_long_ad[EXTENT_MERGE_SIZE], int *); static void udf_prealloc_extents(struct inode *, int, int, - kernel_long_ad [EXTENT_MERGE_SIZE], int *); + kernel_long_ad[EXTENT_MERGE_SIZE], int *); static void udf_merge_extents(struct inode *, - kernel_long_ad [EXTENT_MERGE_SIZE], int *); + kernel_long_ad[EXTENT_MERGE_SIZE], int *); static void udf_update_extents(struct inode *, - kernel_long_ad [EXTENT_MERGE_SIZE], int, int, - struct extent_position *); + kernel_long_ad[EXTENT_MERGE_SIZE], int, int, + struct extent_position *); static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int); /* @@ -81,7 +81,7 @@ static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int); * * Called at the last iput() if i_nlink is zero. */ -void udf_delete_inode(struct inode * inode) +void udf_delete_inode(struct inode *inode) { truncate_inode_pages(&inode->i_data, 0); @@ -97,7 +97,7 @@ void udf_delete_inode(struct inode * inode) unlock_kernel(); return; -no_delete: + no_delete: clear_inode(inode); } @@ -132,26 +132,27 @@ static int udf_readpage(struct file *file, struct page *page) return block_read_full_page(page, udf_get_block); } -static int udf_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to) +static int udf_prepare_write(struct file *file, struct page *page, + unsigned from, unsigned to) { return block_prepare_write(page, from, to, udf_get_block); } static sector_t udf_bmap(struct address_space *mapping, sector_t block) { - return generic_block_bmap(mapping,block,udf_get_block); + return generic_block_bmap(mapping, block, udf_get_block); } const struct address_space_operations udf_aops = { - .readpage = udf_readpage, - .writepage = udf_writepage, - .sync_page = block_sync_page, - .prepare_write = udf_prepare_write, - .commit_write = generic_commit_write, - .bmap = udf_bmap, + .readpage = udf_readpage, + .writepage = udf_writepage, + .sync_page = block_sync_page, + .prepare_write = udf_prepare_write, + .commit_write = generic_commit_write, + .bmap = udf_bmap, }; -void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err) +void udf_expand_file_adinicb(struct inode *inode, int newsize, int *err) { struct page *page; char *kaddr; @@ -163,8 +164,7 @@ void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err) /* from now on we have normal address_space methods */ inode->i_data.a_ops = &udf_aops; - if (!UDF_I_LENALLOC(inode)) - { + if (!UDF_I_LENALLOC(inode)) { if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD)) UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT; else @@ -176,19 +176,18 @@ void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err) page = grab_cache_page(inode->i_mapping, 0); BUG_ON(!PageLocked(page)); - if (!PageUptodate(page)) - { + if (!PageUptodate(page)) { kaddr = kmap(page); memset(kaddr + UDF_I_LENALLOC(inode), 0x00, - PAGE_CACHE_SIZE - UDF_I_LENALLOC(inode)); + PAGE_CACHE_SIZE - UDF_I_LENALLOC(inode)); memcpy(kaddr, UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), - UDF_I_LENALLOC(inode)); + UDF_I_LENALLOC(inode)); flush_dcache_page(page); SetPageUptodate(page); kunmap(page); } memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0x00, - UDF_I_LENALLOC(inode)); + UDF_I_LENALLOC(inode)); UDF_I_LENALLOC(inode) = 0; if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD)) UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT; @@ -201,7 +200,8 @@ void udf_expand_file_adinicb(struct inode * inode, int newsize, int * err) mark_inode_dirty(inode); } -struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int *err) +struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block, + int *err) { int newblock; struct buffer_head *dbh = NULL; @@ -220,8 +220,7 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int else alloctype = ICBTAG_FLAG_AD_LONG; - if (!inode->i_size) - { + if (!inode->i_size) { UDF_I_ALLOCTYPE(inode) = alloctype; mark_inode_dirty(inode); return NULL; @@ -229,13 +228,14 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int /* alloc block, and copy data to it */ *block = udf_new_block(inode->i_sb, inode, - UDF_I_LOCATION(inode).partitionReferenceNum, - UDF_I_LOCATION(inode).logicalBlockNum, err); + UDF_I_LOCATION(inode).partitionReferenceNum, + UDF_I_LOCATION(inode).logicalBlockNum, err); if (!(*block)) return NULL; newblock = udf_get_pblock(inode->i_sb, *block, - UDF_I_LOCATION(inode).partitionReferenceNum, 0); + UDF_I_LOCATION(inode).partitionReferenceNum, + 0); if (!newblock) return NULL; dbh = udf_tgetblk(inode->i_sb, newblock); @@ -247,16 +247,17 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int unlock_buffer(dbh); mark_buffer_dirty_inode(dbh, inode); - sfibh.soffset = sfibh.eoffset = (f_pos & ((inode->i_sb->s_blocksize - 1) >> 2)) << 2; + sfibh.soffset = sfibh.eoffset = + (f_pos & ((inode->i_sb->s_blocksize - 1) >> 2)) << 2; sfibh.sbh = sfibh.ebh = NULL; dfibh.soffset = dfibh.eoffset = 0; dfibh.sbh = dfibh.ebh = dbh; - while ( (f_pos < size) ) - { + while ((f_pos < size)) { UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB; - sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL, NULL, NULL, NULL); - if (!sfi) - { + sfi = + udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL, NULL, + NULL, NULL); + if (!sfi) { brelse(dbh); return NULL; } @@ -266,8 +267,8 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int dfibh.eoffset += (sfibh.eoffset - sfibh.soffset); dfi = (struct fileIdentDesc *)(dbh->b_data + dfibh.soffset); if (udf_write_fi(inode, sfi, dfi, &dfibh, sfi->impUse, - sfi->fileIdent + le16_to_cpu(sfi->lengthOfImpUse))) - { + sfi->fileIdent + + le16_to_cpu(sfi->lengthOfImpUse))) { UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB; brelse(dbh); return NULL; @@ -275,10 +276,12 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int } mark_buffer_dirty_inode(dbh, inode); - memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0, UDF_I_LENALLOC(inode)); + memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode), 0, + UDF_I_LENALLOC(inode)); UDF_I_LENALLOC(inode) = 0; eloc.logicalBlockNum = *block; - eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum; + eloc.partitionReferenceNum = + UDF_I_LOCATION(inode).partitionReferenceNum; elen = inode->i_size; UDF_I_LENEXTENTS(inode) = elen; epos.bh = NULL; @@ -292,14 +295,14 @@ struct buffer_head * udf_expand_dir_adinicb(struct inode *inode, int *block, int return dbh; } -static int udf_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_result, int create) +static int udf_get_block(struct inode *inode, sector_t block, + struct buffer_head *bh_result, int create) { int err, new; struct buffer_head *bh; unsigned long phys; - if (!create) - { + if (!create) { phys = udf_block_map(inode, block); if (phys) map_bh(bh_result, inode->i_sb, phys); @@ -315,10 +318,9 @@ static int udf_get_block(struct inode *inode, sector_t block, struct buffer_head if (block < 0) goto abort_negative; - if (block == UDF_I_NEXT_ALLOC_BLOCK(inode) + 1) - { - UDF_I_NEXT_ALLOC_BLOCK(inode) ++; - UDF_I_NEXT_ALLOC_GOAL(inode) ++; + if (block == UDF_I_NEXT_ALLOC_BLOCK(inode) + 1) { + UDF_I_NEXT_ALLOC_BLOCK(inode)++; + UDF_I_NEXT_ALLOC_GOAL(inode)++; } err = 0; @@ -332,29 +334,27 @@ static int udf_get_block(struct inode *inode, sector_t block, struct buffer_head if (new) set_buffer_new(bh_result); map_bh(bh_result, inode->i_sb, phys); -abort: + abort: unlock_kernel(); return err; -abort_negative: + abort_negative: udf_warning(inode->i_sb, "udf_get_block", "block < 0"); goto abort; } -static struct buffer_head * -udf_getblk(struct inode *inode, long block, int create, int *err) +static struct buffer_head *udf_getblk(struct inode *inode, long block, + int create, int *err) { struct buffer_head dummy; dummy.b_state = 0; dummy.b_blocknr = -1000; *err = udf_get_block(inode, block, &dummy, create); - if (!*err && buffer_mapped(&dummy)) - { + if (!*err && buffer_mapped(&dummy)) { struct buffer_head *bh; bh = sb_getblk(inode->i_sb, dummy.b_blocknr); - if (buffer_new(&dummy)) - { + if (buffer_new(&dummy)) { lock_buffer(bh); memset(bh->b_data, 0x00, inode->i_sb->s_blocksize); set_buffer_uptodate(bh); @@ -368,12 +368,12 @@ udf_getblk(struct inode *inode, long block, int create, int *err) /* Extend the file by 'blocks' blocks, return the number of extents added */ int udf_extend_file(struct inode *inode, struct extent_position *last_pos, - kernel_long_ad *last_ext, sector_t blocks) + kernel_long_ad * last_ext, sector_t blocks) { sector_t add; int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK); struct super_block *sb = inode->i_sb; - kernel_lb_addr prealloc_loc = {0, 0}; + kernel_lb_addr prealloc_loc = { 0, 0 }; int prealloc_len = 0; /* The previous extent is fake and we should not extend by anything @@ -383,28 +383,32 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos, /* Round the last extent up to a multiple of block size */ if (last_ext->extLength & (sb->s_blocksize - 1)) { last_ext->extLength = - (last_ext->extLength & UDF_EXTENT_FLAG_MASK) | - (((last_ext->extLength & UDF_EXTENT_LENGTH_MASK) + - sb->s_blocksize - 1) & ~(sb->s_blocksize - 1)); + (last_ext->extLength & UDF_EXTENT_FLAG_MASK) | + (((last_ext->extLength & UDF_EXTENT_LENGTH_MASK) + + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1)); UDF_I_LENEXTENTS(inode) = - (UDF_I_LENEXTENTS(inode) + sb->s_blocksize - 1) & - ~(sb->s_blocksize - 1); + (UDF_I_LENEXTENTS(inode) + sb->s_blocksize - 1) & + ~(sb->s_blocksize - 1); } /* Last extent are just preallocated blocks? */ - if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_ALLOCATED) { + if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == + EXT_NOT_RECORDED_ALLOCATED) { /* Save the extent so that we can reattach it to the end */ prealloc_loc = last_ext->extLocation; prealloc_len = last_ext->extLength; /* Mark the extent as a hole */ last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | - (last_ext->extLength & UDF_EXTENT_LENGTH_MASK); + (last_ext->extLength & UDF_EXTENT_LENGTH_MASK); last_ext->extLocation.logicalBlockNum = 0; - last_ext->extLocation.partitionReferenceNum = 0; + last_ext->extLocation.partitionReferenceNum = 0; } /* Can we merge with the previous extent? */ - if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == EXT_NOT_RECORDED_NOT_ALLOCATED) { - add = ((1<<30) - sb->s_blocksize - (last_ext->extLength & - UDF_EXTENT_LENGTH_MASK)) >> sb->s_blocksize_bits; + if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) == + EXT_NOT_RECORDED_NOT_ALLOCATED) { + add = + ((1 << 30) - sb->s_blocksize - + (last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >> sb-> + s_blocksize_bits; if (add > blocks) add = blocks; blocks -= add; @@ -413,40 +417,42 @@ int udf_extend_file(struct inode *inode, struct extent_position *last_pos, if (fake) { udf_add_aext(inode, last_pos, last_ext->extLocation, - last_ext->extLength, 1); + last_ext->extLength, 1); count++; - } - else - udf_write_aext(inode, last_pos, last_ext->extLocation, last_ext->extLength, 1); + } else + udf_write_aext(inode, last_pos, last_ext->extLocation, + last_ext->extLength, 1); /* Managed to do everything necessary? */ if (!blocks) goto out; /* All further extents will be NOT_RECORDED_NOT_ALLOCATED */ last_ext->extLocation.logicalBlockNum = 0; - last_ext->extLocation.partitionReferenceNum = 0; - add = (1 << (30-sb->s_blocksize_bits)) - 1; - last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | (add << sb->s_blocksize_bits); + last_ext->extLocation.partitionReferenceNum = 0; + add = (1 << (30 - sb->s_blocksize_bits)) - 1; + last_ext->extLength = + EXT_NOT_RECORDED_NOT_ALLOCATED | (add << sb->s_blocksize_bits); /* Create enough extents to cover the whole hole */ while (blocks > add) { blocks -= add; if (udf_add_aext(inode, last_pos, last_ext->extLocation, - last_ext->extLength, 1) == -1) + last_ext->extLength, 1) == -1) return -1; count++; } if (blocks) { last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | - (blocks << sb->s_blocksize_bits); + (blocks << sb->s_blocksize_bits); if (udf_add_aext(inode, last_pos, last_ext->extLocation, - last_ext->extLength, 1) == -1) + last_ext->extLength, 1) == -1) return -1; count++; } -out: + out: /* Do we have some preallocated blocks saved? */ if (prealloc_len) { - if (udf_add_aext(inode, last_pos, prealloc_loc, prealloc_len, 1) == -1) + if (udf_add_aext(inode, last_pos, prealloc_loc, prealloc_len, 1) + == -1) return -1; last_ext->extLocation = prealloc_loc; last_ext->extLength = prealloc_len; @@ -462,8 +468,8 @@ out: return count; } -static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, - int *err, long *phys, int *new) +static struct buffer_head *inode_getblk(struct inode *inode, sector_t block, + int *err, long *phys, int *new) { static sector_t last_block; struct buffer_head *result = NULL; @@ -484,21 +490,18 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, prev_epos.block = UDF_I_LOCATION(inode); prev_epos.bh = NULL; cur_epos = next_epos = prev_epos; - b_off = (loff_t)block << inode->i_sb->s_blocksize_bits; + b_off = (loff_t) block << inode->i_sb->s_blocksize_bits; /* find the extent which contains the block we are looking for. - alternate between laarr[0] and laarr[1] for locations of the - current extent, and the previous extent */ - do - { - if (prev_epos.bh != cur_epos.bh) - { + alternate between laarr[0] and laarr[1] for locations of the + current extent, and the previous extent */ + do { + if (prev_epos.bh != cur_epos.bh) { brelse(prev_epos.bh); get_bh(cur_epos.bh); prev_epos.bh = cur_epos.bh; } - if (cur_epos.bh != next_epos.bh) - { + if (cur_epos.bh != next_epos.bh) { brelse(cur_epos.bh); get_bh(next_epos.bh); cur_epos.bh = next_epos.bh; @@ -512,7 +515,8 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, prev_epos.offset = cur_epos.offset; cur_epos.offset = next_epos.offset; - if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 1)) == -1) + if ((etype = + udf_next_aext(inode, &next_epos, &eloc, &elen, 1)) == -1) break; c = !c; @@ -522,10 +526,10 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, if (etype != (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) pgoal = eloc.logicalBlockNum + - ((elen + inode->i_sb->s_blocksize - 1) >> - inode->i_sb->s_blocksize_bits); + ((elen + inode->i_sb->s_blocksize - 1) >> + inode->i_sb->s_blocksize_bits); - count ++; + count++; } while (lbcount + elen <= b_off); b_off -= lbcount; @@ -538,15 +542,13 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, udf_next_aext(inode, &cur_epos, &tmpeloc, &tmpelen, 0); /* if the extent is allocated and recorded, return the block - if the extent is not a multiple of the blocksize, round up */ + if the extent is not a multiple of the blocksize, round up */ - if (etype == (EXT_RECORDED_ALLOCATED >> 30)) - { - if (elen & (inode->i_sb->s_blocksize - 1)) - { + if (etype == (EXT_RECORDED_ALLOCATED >> 30)) { + if (elen & (inode->i_sb->s_blocksize - 1)) { elen = EXT_RECORDED_ALLOCATED | - ((elen + inode->i_sb->s_blocksize - 1) & - ~(inode->i_sb->s_blocksize - 1)); + ((elen + inode->i_sb->s_blocksize - 1) & + ~(inode->i_sb->s_blocksize - 1)); etype = udf_write_aext(inode, &cur_epos, eloc, elen, 1); } brelse(prev_epos.bh); @@ -559,18 +561,17 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, last_block = block; /* Are we beyond EOF? */ - if (etype == -1) - { + if (etype == -1) { int ret; if (count) { if (c) laarr[0] = laarr[1]; startnum = 1; - } - else { + } else { /* Create a fake extent when there's not one */ - memset(&laarr[0].extLocation, 0x00, sizeof(kernel_lb_addr)); + memset(&laarr[0].extLocation, 0x00, + sizeof(kernel_lb_addr)); laarr[0].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED; /* Will udf_extend_file() create real extent from a fake one? */ startnum = (offset > 0); @@ -590,26 +591,26 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, offset = 0; count += ret; /* We are not covered by a preallocated extent? */ - if ((laarr[0].extLength & UDF_EXTENT_FLAG_MASK) != EXT_NOT_RECORDED_ALLOCATED) { + if ((laarr[0].extLength & UDF_EXTENT_FLAG_MASK) != + EXT_NOT_RECORDED_ALLOCATED) { /* Is there any real extent? - otherwise we overwrite * the fake one... */ if (count) c = !c; laarr[c].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | - inode->i_sb->s_blocksize; - memset(&laarr[c].extLocation, 0x00, sizeof(kernel_lb_addr)); - count ++; - endnum ++; + inode->i_sb->s_blocksize; + memset(&laarr[c].extLocation, 0x00, + sizeof(kernel_lb_addr)); + count++; + endnum++; } - endnum = c+1; + endnum = c + 1; lastblock = 1; - } - else { + } else { endnum = startnum = ((count > 2) ? 2 : count); /* if the current extent is in position 0, swap it with the previous */ - if (!c && count != 1) - { + if (!c && count != 1) { laarr[2] = laarr[0]; laarr[0] = laarr[1]; laarr[1] = laarr[2]; @@ -617,37 +618,37 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, } /* if the current block is located in an extent, read the next extent */ - if ((etype = udf_next_aext(inode, &next_epos, &eloc, &elen, 0)) != -1) - { - laarr[c+1].extLength = (etype << 30) | elen; - laarr[c+1].extLocation = eloc; - count ++; - startnum ++; - endnum ++; - } - else { + if ((etype = + udf_next_aext(inode, &next_epos, &eloc, &elen, 0)) != -1) { + laarr[c + 1].extLength = (etype << 30) | elen; + laarr[c + 1].extLocation = eloc; + count++; + startnum++; + endnum++; + } else { lastblock = 1; } } /* if the current extent is not recorded but allocated, get the - block in the extent corresponding to the requested block */ + block in the extent corresponding to the requested block */ if ((laarr[c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) newblocknum = laarr[c].extLocation.logicalBlockNum + offset; - else /* otherwise, allocate a new block */ - { + else { /* otherwise, allocate a new block */ + if (UDF_I_NEXT_ALLOC_BLOCK(inode) == block) goal = UDF_I_NEXT_ALLOC_GOAL(inode); - if (!goal) - { + if (!goal) { if (!(goal = pgoal)) - goal = UDF_I_LOCATION(inode).logicalBlockNum + 1; + goal = + UDF_I_LOCATION(inode).logicalBlockNum + 1; } if (!(newblocknum = udf_new_block(inode->i_sb, inode, - UDF_I_LOCATION(inode).partitionReferenceNum, goal, err))) - { + UDF_I_LOCATION(inode). + partitionReferenceNum, goal, + err))) { brelse(prev_epos.bh); *err = -ENOSPC; return NULL; @@ -656,8 +657,8 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, } /* if the extent the requsted block is located in contains multiple blocks, - split the extent into at most three extents. blocks prior to requested - block, requested block, and blocks after requested block */ + split the extent into at most three extents. blocks prior to requested + block, requested block, and blocks after requested block */ udf_split_extents(inode, &c, offset, newblocknum, laarr, &endnum); #ifdef UDF_PREALLOCATE @@ -669,15 +670,15 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, udf_merge_extents(inode, laarr, &endnum); /* write back the new extents, inserting new extents if the new number - of extents is greater than the old number, and deleting extents if - the new number of extents is less than the old number */ + of extents is greater than the old number, and deleting extents if + the new number of extents is less than the old number */ udf_update_extents(inode, laarr, startnum, endnum, &prev_epos); brelse(prev_epos.bh); if (!(newblock = udf_get_pblock(inode->i_sb, newblocknum, - UDF_I_LOCATION(inode).partitionReferenceNum, 0))) - { + UDF_I_LOCATION(inode). + partitionReferenceNum, 0))) { return NULL; } *phys = newblock; @@ -694,283 +695,329 @@ static struct buffer_head * inode_getblk(struct inode * inode, sector_t block, return result; } -static void udf_split_extents(struct inode *inode, int *c, int offset, int newblocknum, - kernel_long_ad laarr[EXTENT_MERGE_SIZE], int *endnum) +static void udf_split_extents(struct inode *inode, int *c, int offset, + int newblocknum, + kernel_long_ad laarr[EXTENT_MERGE_SIZE], + int *endnum) { if ((laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30) || - (laarr[*c].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) - { + (laarr[*c].extLength >> 30) == + (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) { int curr = *c; int blen = ((laarr[curr].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits; + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits; int8_t etype = (laarr[curr].extLength >> 30); - if (blen == 1) - ; - else if (!offset || blen == offset + 1) - { - laarr[curr+2] = laarr[curr+1]; - laarr[curr+1] = laarr[curr]; - } - else - { - laarr[curr+3] = laarr[curr+1]; - laarr[curr+2] = laarr[curr+1] = laarr[curr]; - } - - if (offset) - { - if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) - { - udf_free_blocks(inode->i_sb, inode, laarr[curr].extLocation, 0, offset); - laarr[curr].extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | - (offset << inode->i_sb->s_blocksize_bits); + if (blen == 1) ; + else if (!offset || blen == offset + 1) { + laarr[curr + 2] = laarr[curr + 1]; + laarr[curr + 1] = laarr[curr]; + } else { + laarr[curr + 3] = laarr[curr + 1]; + laarr[curr + 2] = laarr[curr + 1] = laarr[curr]; + } + + if (offset) { + if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) { + udf_free_blocks(inode->i_sb, inode, + laarr[curr].extLocation, 0, + offset); + laarr[curr].extLength = + EXT_NOT_RECORDED_NOT_ALLOCATED | (offset << + inode-> + i_sb-> + s_blocksize_bits); laarr[curr].extLocation.logicalBlockNum = 0; - laarr[curr].extLocation.partitionReferenceNum = 0; - } - else + laarr[curr].extLocation.partitionReferenceNum = + 0; + } else laarr[curr].extLength = (etype << 30) | - (offset << inode->i_sb->s_blocksize_bits); - curr ++; - (*c) ++; - (*endnum) ++; + (offset << inode->i_sb->s_blocksize_bits); + curr++; + (*c)++; + (*endnum)++; } laarr[curr].extLocation.logicalBlockNum = newblocknum; if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) laarr[curr].extLocation.partitionReferenceNum = - UDF_I_LOCATION(inode).partitionReferenceNum; + UDF_I_LOCATION(inode).partitionReferenceNum; laarr[curr].extLength = EXT_RECORDED_ALLOCATED | - inode->i_sb->s_blocksize; - curr ++; + inode->i_sb->s_blocksize; + curr++; - if (blen != offset + 1) - { + if (blen != offset + 1) { if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) - laarr[curr].extLocation.logicalBlockNum += (offset + 1); - laarr[curr].extLength = (etype << 30) | - ((blen - (offset + 1)) << inode->i_sb->s_blocksize_bits); - curr ++; - (*endnum) ++; + laarr[curr].extLocation.logicalBlockNum += + (offset + 1); + laarr[curr].extLength = + (etype << 30) | ((blen - (offset + 1)) << inode-> + i_sb->s_blocksize_bits); + curr++; + (*endnum)++; } } } static void udf_prealloc_extents(struct inode *inode, int c, int lastblock, - kernel_long_ad laarr[EXTENT_MERGE_SIZE], int *endnum) + kernel_long_ad laarr[EXTENT_MERGE_SIZE], + int *endnum) { int start, length = 0, currlength = 0, i; - if (*endnum >= (c+1)) - { + if (*endnum >= (c + 1)) { if (!lastblock) return; else start = c; - } - else - { - if ((laarr[c+1].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) - { - start = c+1; - length = currlength = (((laarr[c+1].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits); - } - else + } else { + if ((laarr[c + 1].extLength >> 30) == + (EXT_NOT_RECORDED_ALLOCATED >> 30)) { + start = c + 1; + length = currlength = + (((laarr[c + 1]. + extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits); + } else start = c; } - for (i=start+1; i<=*endnum; i++) - { - if (i == *endnum) - { + for (i = start + 1; i <= *endnum; i++) { + if (i == *endnum) { if (lastblock) length += UDF_DEFAULT_PREALLOC_BLOCKS; - } - else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) - length += (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits); + } else if ((laarr[i].extLength >> 30) == + (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) + length += + (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits); else break; } - if (length) - { + if (length) { int next = laarr[start].extLocation.logicalBlockNum + - (((laarr[start].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits); + (((laarr[start].extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits); int numalloc = udf_prealloc_blocks(inode->i_sb, inode, - laarr[start].extLocation.partitionReferenceNum, - next, (UDF_DEFAULT_PREALLOC_BLOCKS > length ? length : - UDF_DEFAULT_PREALLOC_BLOCKS) - currlength); - - if (numalloc) - { - if (start == (c+1)) + laarr[start].extLocation. + partitionReferenceNum, + next, + (UDF_DEFAULT_PREALLOC_BLOCKS + > + length ? length : + UDF_DEFAULT_PREALLOC_BLOCKS) + - currlength); + + if (numalloc) { + if (start == (c + 1)) laarr[start].extLength += - (numalloc << inode->i_sb->s_blocksize_bits); - else - { - memmove(&laarr[c+2], &laarr[c+1], - sizeof(long_ad) * (*endnum - (c+1))); - (*endnum) ++; - laarr[c+1].extLocation.logicalBlockNum = next; - laarr[c+1].extLocation.partitionReferenceNum = - laarr[c].extLocation.partitionReferenceNum; - laarr[c+1].extLength = EXT_NOT_RECORDED_ALLOCATED | - (numalloc << inode->i_sb->s_blocksize_bits); - start = c+1; + (numalloc << inode->i_sb->s_blocksize_bits); + else { + memmove(&laarr[c + 2], &laarr[c + 1], + sizeof(long_ad) * (*endnum - (c + 1))); + (*endnum)++; + laarr[c + 1].extLocation.logicalBlockNum = next; + laarr[c + 1].extLocation.partitionReferenceNum = + laarr[c].extLocation.partitionReferenceNum; + laarr[c + 1].extLength = + EXT_NOT_RECORDED_ALLOCATED | (numalloc << + inode->i_sb-> + s_blocksize_bits); + start = c + 1; } - for (i=start+1; numalloc && i<*endnum; i++) - { - int elen = ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits; + for (i = start + 1; numalloc && i < *endnum; i++) { + int elen = + ((laarr[i]. + extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits; - if (elen > numalloc) - { + if (elen > numalloc) { laarr[i].extLength -= - (numalloc << inode->i_sb->s_blocksize_bits); + (numalloc << inode->i_sb-> + s_blocksize_bits); numalloc = 0; - } - else - { + } else { numalloc -= elen; - if (*endnum > (i+1)) - memmove(&laarr[i], &laarr[i+1], - sizeof(long_ad) * (*endnum - (i+1))); - i --; - (*endnum) --; + if (*endnum > (i + 1)) + memmove(&laarr[i], + &laarr[i + 1], + sizeof(long_ad) * + (*endnum - (i + 1))); + i--; + (*endnum)--; } } - UDF_I_LENEXTENTS(inode) += numalloc << inode->i_sb->s_blocksize_bits; + UDF_I_LENEXTENTS(inode) += + numalloc << inode->i_sb->s_blocksize_bits; } } } static void udf_merge_extents(struct inode *inode, - kernel_long_ad laarr[EXTENT_MERGE_SIZE], int *endnum) + kernel_long_ad laarr[EXTENT_MERGE_SIZE], + int *endnum) { int i; - for (i=0; i<(*endnum-1); i++) - { - if ((laarr[i].extLength >> 30) == (laarr[i+1].extLength >> 30)) - { - if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) || - ((laarr[i+1].extLocation.logicalBlockNum - laarr[i].extLocation.logicalBlockNum) == - (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits))) - { - if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - (laarr[i+1].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) - { - laarr[i+1].extLength = (laarr[i+1].extLength - - (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize-1); - laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) + - (UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize; - laarr[i+1].extLocation.logicalBlockNum = - laarr[i].extLocation.logicalBlockNum + - ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) >> - inode->i_sb->s_blocksize_bits); - } - else - { - laarr[i].extLength = laarr[i+1].extLength + - (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize-1)); - if (*endnum > (i+2)) - memmove(&laarr[i+1], &laarr[i+2], - sizeof(long_ad) * (*endnum - (i+2))); - i --; - (*endnum) --; + for (i = 0; i < (*endnum - 1); i++) { + if ((laarr[i].extLength >> 30) == + (laarr[i + 1].extLength >> 30)) { + if (((laarr[i].extLength >> 30) == + (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) + || + ((laarr[i + 1].extLocation.logicalBlockNum - + laarr[i].extLocation.logicalBlockNum) == + (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits))) { + if (((laarr[i]. + extLength & UDF_EXTENT_LENGTH_MASK) + + (laarr[i + 1]. + extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) & ~UDF_EXTENT_LENGTH_MASK) { + laarr[i + 1].extLength = + (laarr[i + 1].extLength - + (laarr[i]. + extLength & + UDF_EXTENT_LENGTH_MASK) + + UDF_EXTENT_LENGTH_MASK) & ~(inode-> + i_sb-> + s_blocksize + - 1); + laarr[i].extLength = + (laarr[i]. + extLength & UDF_EXTENT_FLAG_MASK) + + (UDF_EXTENT_LENGTH_MASK + 1) - + inode->i_sb->s_blocksize; + laarr[i + + 1].extLocation.logicalBlockNum = + laarr[i].extLocation. + logicalBlockNum + + ((laarr[i]. + extLength & + UDF_EXTENT_LENGTH_MASK) >> inode-> + i_sb->s_blocksize_bits); + } else { + laarr[i].extLength = + laarr[i + 1].extLength + + (((laarr[i]. + extLength & + UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) & ~(inode->i_sb->s_blocksize - + 1)); + if (*endnum > (i + 2)) + memmove(&laarr[i + 1], + &laarr[i + 2], + sizeof(long_ad) * + (*endnum - (i + 2))); + i--; + (*endnum)--; } } - } - else if (((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) && - ((laarr[i+1].extLength >> 30) == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) - { - udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0, - ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits); + } else + if (((laarr[i].extLength >> 30) == + (EXT_NOT_RECORDED_ALLOCATED >> 30)) + && ((laarr[i + 1].extLength >> 30) == + (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))) { + udf_free_blocks(inode->i_sb, inode, + laarr[i].extLocation, 0, + ((laarr[i]. + extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits); laarr[i].extLocation.logicalBlockNum = 0; laarr[i].extLocation.partitionReferenceNum = 0; if (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - (laarr[i+1].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) & ~UDF_EXTENT_LENGTH_MASK) - { - laarr[i+1].extLength = (laarr[i+1].extLength - - (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb->s_blocksize-1); - laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_FLAG_MASK) + - (UDF_EXTENT_LENGTH_MASK + 1) - inode->i_sb->s_blocksize; + (laarr[i + 1].extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) & ~UDF_EXTENT_LENGTH_MASK) { + laarr[i + 1].extLength = + (laarr[i + 1].extLength - + (laarr[i]. + extLength & UDF_EXTENT_LENGTH_MASK) + + UDF_EXTENT_LENGTH_MASK) & ~(inode->i_sb-> + s_blocksize - + 1); + laarr[i].extLength = + (laarr[i]. + extLength & UDF_EXTENT_FLAG_MASK) + + (UDF_EXTENT_LENGTH_MASK + 1) - + inode->i_sb->s_blocksize; + } else { + laarr[i].extLength = laarr[i + 1].extLength + + (((laarr[i]. + extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) & ~(inode->i_sb->s_blocksize - 1)); + if (*endnum > (i + 2)) + memmove(&laarr[i + 1], &laarr[i + 2], + sizeof(long_ad) * (*endnum - + (i + 2))); + i--; + (*endnum)--; } - else - { - laarr[i].extLength = laarr[i+1].extLength + - (((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) & ~(inode->i_sb->s_blocksize-1)); - if (*endnum > (i+2)) - memmove(&laarr[i+1], &laarr[i+2], - sizeof(long_ad) * (*endnum - (i+2))); - i --; - (*endnum) --; - } - } - else if ((laarr[i].extLength >> 30) == (EXT_NOT_RECORDED_ALLOCATED >> 30)) - { - udf_free_blocks(inode->i_sb, inode, laarr[i].extLocation, 0, - ((laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) + - inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits); + } else if ((laarr[i].extLength >> 30) == + (EXT_NOT_RECORDED_ALLOCATED >> 30)) { + udf_free_blocks(inode->i_sb, inode, + laarr[i].extLocation, 0, + ((laarr[i]. + extLength & UDF_EXTENT_LENGTH_MASK) + + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits); laarr[i].extLocation.logicalBlockNum = 0; laarr[i].extLocation.partitionReferenceNum = 0; - laarr[i].extLength = (laarr[i].extLength & UDF_EXTENT_LENGTH_MASK) | - EXT_NOT_RECORDED_NOT_ALLOCATED; + laarr[i].extLength = + (laarr[i]. + extLength & UDF_EXTENT_LENGTH_MASK) | + EXT_NOT_RECORDED_NOT_ALLOCATED; } } } static void udf_update_extents(struct inode *inode, - kernel_long_ad laarr[EXTENT_MERGE_SIZE], int startnum, int endnum, - struct extent_position *epos) + kernel_long_ad laarr[EXTENT_MERGE_SIZE], + int startnum, int endnum, + struct extent_position *epos) { int start = 0, i; kernel_lb_addr tmploc; uint32_t tmplen; - if (startnum > endnum) - { - for (i=0; i<(startnum-endnum); i++) + if (startnum > endnum) { + for (i = 0; i < (startnum - endnum); i++) udf_delete_aext(inode, *epos, laarr[i].extLocation, - laarr[i].extLength); - } - else if (startnum < endnum) - { - for (i=0; i<(endnum-startnum); i++) - { + laarr[i].extLength); + } else if (startnum < endnum) { + for (i = 0; i < (endnum - startnum); i++) { udf_insert_aext(inode, *epos, laarr[i].extLocation, - laarr[i].extLength); + laarr[i].extLength); udf_next_aext(inode, epos, &laarr[i].extLocation, - &laarr[i].extLength, 1); - start ++; + &laarr[i].extLength, 1); + start++; } } - for (i=start; i<endnum; i++) - { + for (i = start; i < endnum; i++) { udf_next_aext(inode, epos, &tmploc, &tmplen, 0); udf_write_aext(inode, epos, laarr[i].extLocation, - laarr[i].extLength, 1); + laarr[i].extLength, 1); } } -struct buffer_head * udf_bread(struct inode * inode, int block, - int create, int * err) +struct buffer_head *udf_bread(struct inode *inode, int block, + int create, int *err) { - struct buffer_head * bh = NULL; + struct buffer_head *bh = NULL; bh = udf_getblk(inode, block, create, err); if (!bh) @@ -987,56 +1034,51 @@ struct buffer_head * udf_bread(struct inode * inode, int block, return NULL; } -void udf_truncate(struct inode * inode) +void udf_truncate(struct inode *inode) { int offset; int err; if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || - S_ISLNK(inode->i_mode))) + S_ISLNK(inode->i_mode))) return; if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) return; lock_kernel(); - if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) - { - if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) + - inode->i_size)) - { + if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) { + if (inode->i_sb->s_blocksize < + (udf_file_entry_alloc_offset(inode) + inode->i_size)) { udf_expand_file_adinicb(inode, inode->i_size, &err); - if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) { inode->i_size = UDF_I_LENALLOC(inode); unlock_kernel(); return; - } - else + } else udf_truncate_extents(inode); - } - else - { + } else { offset = inode->i_size & (inode->i_sb->s_blocksize - 1); - memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset, 0x00, inode->i_sb->s_blocksize - offset - udf_file_entry_alloc_offset(inode)); + memset(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + + offset, 0x00, + inode->i_sb->s_blocksize - offset - + udf_file_entry_alloc_offset(inode)); UDF_I_LENALLOC(inode) = inode->i_size; } - } - else - { - block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block); + } else { + block_truncate_page(inode->i_mapping, inode->i_size, + udf_get_block); udf_truncate_extents(inode); } inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb); if (IS_SYNC(inode)) - udf_sync_inode (inode); + udf_sync_inode(inode); else mark_inode_dirty(inode); unlock_kernel(); } -static void -__udf_read_inode(struct inode *inode) +static void __udf_read_inode(struct inode *inode) { struct buffer_head *bh = NULL; struct fileEntry *fe; @@ -1056,19 +1098,18 @@ __udf_read_inode(struct inode *inode) */ bh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 0, &ident); - if (!bh) - { + if (!bh) { printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed !bh\n", - inode->i_ino); + inode->i_ino); make_bad_inode(inode); return; } if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE && - ident != TAG_IDENT_USE) - { - printk(KERN_ERR "udf: udf_read_inode(ino %ld) failed ident=%d\n", - inode->i_ino, ident); + ident != TAG_IDENT_USE) { + printk(KERN_ERR + "udf: udf_read_inode(ino %ld) failed ident=%d\n", + inode->i_ino, ident); brelse(bh); make_bad_inode(inode); return; @@ -1076,51 +1117,46 @@ __udf_read_inode(struct inode *inode) fe = (struct fileEntry *)bh->b_data; - if (le16_to_cpu(fe->icbTag.strategyType) == 4096) - { + if (le16_to_cpu(fe->icbTag.strategyType) == 4096) { struct buffer_head *ibh = NULL, *nbh = NULL; struct indirectEntry *ie; - ibh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 1, &ident); - if (ident == TAG_IDENT_IE) - { - if (ibh) - { + ibh = + udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 1, + &ident); + if (ident == TAG_IDENT_IE) { + if (ibh) { kernel_lb_addr loc; ie = (struct indirectEntry *)ibh->b_data; loc = lelb_to_cpu(ie->indirectICB.extLocation); if (ie->indirectICB.extLength && - (nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident))) - { - if (ident == TAG_IDENT_FE || - ident == TAG_IDENT_EFE) - { - memcpy(&UDF_I_LOCATION(inode), &loc, sizeof(kernel_lb_addr)); + (nbh = + udf_read_ptagged(inode->i_sb, loc, 0, + &ident))) { + if (ident == TAG_IDENT_FE + || ident == TAG_IDENT_EFE) { + memcpy(&UDF_I_LOCATION(inode), + &loc, + sizeof(kernel_lb_addr)); brelse(bh); brelse(ibh); brelse(nbh); __udf_read_inode(inode); return; - } - else - { + } else { brelse(nbh); brelse(ibh); } - } - else + } else brelse(ibh); } - } - else + } else brelse(ibh); - } - else if (le16_to_cpu(fe->icbTag.strategyType) != 4) - { + } else if (le16_to_cpu(fe->icbTag.strategyType) != 4) { printk(KERN_ERR "udf: unsupported strategy type: %d\n", - le16_to_cpu(fe->icbTag.strategyType)); + le16_to_cpu(fe->icbTag.strategyType)); brelse(bh); make_bad_inode(inode); return; @@ -1143,62 +1179,70 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) if (le16_to_cpu(fe->icbTag.strategyType) == 4) UDF_I_STRAT4096(inode) = 0; - else /* if (le16_to_cpu(fe->icbTag.strategyType) == 4096) */ + else /* if (le16_to_cpu(fe->icbTag.strategyType) == 4096) */ UDF_I_STRAT4096(inode) = 1; - UDF_I_ALLOCTYPE(inode) = le16_to_cpu(fe->icbTag.flags) & ICBTAG_FLAG_AD_MASK; + UDF_I_ALLOCTYPE(inode) = + le16_to_cpu(fe->icbTag.flags) & ICBTAG_FLAG_AD_MASK; UDF_I_UNIQUE(inode) = 0; UDF_I_LENEATTR(inode) = 0; UDF_I_LENEXTENTS(inode) = 0; UDF_I_LENALLOC(inode) = 0; UDF_I_NEXT_ALLOC_BLOCK(inode) = 0; UDF_I_NEXT_ALLOC_GOAL(inode) = 0; - if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_EFE) - { + if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_EFE) { UDF_I_EFE(inode) = 1; UDF_I_USE(inode) = 0; - if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry))) - { + if (udf_alloc_i_data + (inode, + inode->i_sb->s_blocksize - + sizeof(struct extendedFileEntry))) { make_bad_inode(inode); return; } - memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry), inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry)); - } - else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE) - { + memcpy(UDF_I_DATA(inode), + bh->b_data + sizeof(struct extendedFileEntry), + inode->i_sb->s_blocksize - + sizeof(struct extendedFileEntry)); + } else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE) { UDF_I_EFE(inode) = 0; UDF_I_USE(inode) = 0; - if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct fileEntry))) - { + if (udf_alloc_i_data + (inode, + inode->i_sb->s_blocksize - sizeof(struct fileEntry))) { make_bad_inode(inode); return; } - memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry), inode->i_sb->s_blocksize - sizeof(struct fileEntry)); - } - else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) - { + memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry), + inode->i_sb->s_blocksize - sizeof(struct fileEntry)); + } else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) { UDF_I_EFE(inode) = 0; UDF_I_USE(inode) = 1; UDF_I_LENALLOC(inode) = - le32_to_cpu( - ((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs); - if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry))) - { + le32_to_cpu(((struct unallocSpaceEntry *)bh->b_data)-> + lengthAllocDescs); + if (udf_alloc_i_data + (inode, + inode->i_sb->s_blocksize - + sizeof(struct unallocSpaceEntry))) { make_bad_inode(inode); return; } - memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry), inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry)); + memcpy(UDF_I_DATA(inode), + bh->b_data + sizeof(struct unallocSpaceEntry), + inode->i_sb->s_blocksize - + sizeof(struct unallocSpaceEntry)); return; } inode->i_uid = le32_to_cpu(fe->uid); if (inode->i_uid == -1 || UDF_QUERY_FLAG(inode->i_sb, - UDF_FLAG_UID_IGNORE)) + UDF_FLAG_UID_IGNORE)) inode->i_uid = UDF_SB(inode->i_sb)->s_uid; inode->i_gid = le32_to_cpu(fe->gid); if (inode->i_gid == -1 || UDF_QUERY_FLAG(inode->i_sb, - UDF_FLAG_GID_IGNORE)) + UDF_FLAG_GID_IGNORE)) inode->i_gid = UDF_SB(inode->i_sb)->s_gid; inode->i_nlink = le16_to_cpu(fe->fileLinkCount); @@ -1211,41 +1255,31 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) inode->i_mode = udf_convert_permissions(fe); inode->i_mode &= ~UDF_SB(inode->i_sb)->s_umask; - if (UDF_I_EFE(inode) == 0) - { + if (UDF_I_EFE(inode) == 0) { inode->i_blocks = le64_to_cpu(fe->logicalBlocksRecorded) << - (inode->i_sb->s_blocksize_bits - 9); + (inode->i_sb->s_blocksize_bits - 9); - if ( udf_stamp_to_time(&convtime, &convtime_usec, - lets_to_cpu(fe->accessTime)) ) - { + if (udf_stamp_to_time(&convtime, &convtime_usec, + lets_to_cpu(fe->accessTime))) { inode->i_atime.tv_sec = convtime; inode->i_atime.tv_nsec = convtime_usec * 1000; - } - else - { + } else { inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb); } - if ( udf_stamp_to_time(&convtime, &convtime_usec, - lets_to_cpu(fe->modificationTime)) ) - { + if (udf_stamp_to_time(&convtime, &convtime_usec, + lets_to_cpu(fe->modificationTime))) { inode->i_mtime.tv_sec = convtime; inode->i_mtime.tv_nsec = convtime_usec * 1000; - } - else - { + } else { inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb); } - if ( udf_stamp_to_time(&convtime, &convtime_usec, - lets_to_cpu(fe->attrTime)) ) - { + if (udf_stamp_to_time(&convtime, &convtime_usec, + lets_to_cpu(fe->attrTime))) { inode->i_ctime.tv_sec = convtime; inode->i_ctime.tv_nsec = convtime_usec * 1000; - } - else - { + } else { inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb); } @@ -1253,65 +1287,51 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) UDF_I_LENEATTR(inode) = le32_to_cpu(fe->lengthExtendedAttr); UDF_I_LENALLOC(inode) = le32_to_cpu(fe->lengthAllocDescs); offset = sizeof(struct fileEntry) + UDF_I_LENEATTR(inode); - } - else - { + } else { inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) << - (inode->i_sb->s_blocksize_bits - 9); + (inode->i_sb->s_blocksize_bits - 9); - if ( udf_stamp_to_time(&convtime, &convtime_usec, - lets_to_cpu(efe->accessTime)) ) - { + if (udf_stamp_to_time(&convtime, &convtime_usec, + lets_to_cpu(efe->accessTime))) { inode->i_atime.tv_sec = convtime; inode->i_atime.tv_nsec = convtime_usec * 1000; - } - else - { + } else { inode->i_atime = UDF_SB_RECORDTIME(inode->i_sb); } - if ( udf_stamp_to_time(&convtime, &convtime_usec, - lets_to_cpu(efe->modificationTime)) ) - { + if (udf_stamp_to_time(&convtime, &convtime_usec, + lets_to_cpu(efe->modificationTime))) { inode->i_mtime.tv_sec = convtime; inode->i_mtime.tv_nsec = convtime_usec * 1000; - } - else - { + } else { inode->i_mtime = UDF_SB_RECORDTIME(inode->i_sb); } - if ( udf_stamp_to_time(&convtime, &convtime_usec, - lets_to_cpu(efe->createTime)) ) - { + if (udf_stamp_to_time(&convtime, &convtime_usec, + lets_to_cpu(efe->createTime))) { UDF_I_CRTIME(inode).tv_sec = convtime; UDF_I_CRTIME(inode).tv_nsec = convtime_usec * 1000; - } - else - { + } else { UDF_I_CRTIME(inode) = UDF_SB_RECORDTIME(inode->i_sb); } - if ( udf_stamp_to_time(&convtime, &convtime_usec, - lets_to_cpu(efe->attrTime)) ) - { + if (udf_stamp_to_time(&convtime, &convtime_usec, + lets_to_cpu(efe->attrTime))) { inode->i_ctime.tv_sec = convtime; inode->i_ctime.tv_nsec = convtime_usec * 1000; - } - else - { + } else { inode->i_ctime = UDF_SB_RECORDTIME(inode->i_sb); } UDF_I_UNIQUE(inode) = le64_to_cpu(efe->uniqueID); UDF_I_LENEATTR(inode) = le32_to_cpu(efe->lengthExtendedAttr); UDF_I_LENALLOC(inode) = le32_to_cpu(efe->lengthAllocDescs); - offset = sizeof(struct extendedFileEntry) + UDF_I_LENEATTR(inode); + offset = + sizeof(struct extendedFileEntry) + UDF_I_LENEATTR(inode); } - switch (fe->icbTag.fileType) - { - case ICBTAG_FILE_TYPE_DIRECTORY: + switch (fe->icbTag.fileType) { + case ICBTAG_FILE_TYPE_DIRECTORY: { inode->i_op = &udf_dir_inode_operations; inode->i_fop = &udf_dir_operations; @@ -1319,9 +1339,9 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) inc_nlink(inode); break; } - case ICBTAG_FILE_TYPE_REALTIME: - case ICBTAG_FILE_TYPE_REGULAR: - case ICBTAG_FILE_TYPE_UNDEF: + case ICBTAG_FILE_TYPE_REALTIME: + case ICBTAG_FILE_TYPE_REGULAR: + case ICBTAG_FILE_TYPE_UNDEF: { if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) inode->i_data.a_ops = &udf_adinicb_aops; @@ -1332,56 +1352,54 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) inode->i_mode |= S_IFREG; break; } - case ICBTAG_FILE_TYPE_BLOCK: + case ICBTAG_FILE_TYPE_BLOCK: { inode->i_mode |= S_IFBLK; break; } - case ICBTAG_FILE_TYPE_CHAR: + case ICBTAG_FILE_TYPE_CHAR: { inode->i_mode |= S_IFCHR; break; } - case ICBTAG_FILE_TYPE_FIFO: + case ICBTAG_FILE_TYPE_FIFO: { init_special_inode(inode, inode->i_mode | S_IFIFO, 0); break; } - case ICBTAG_FILE_TYPE_SOCKET: + case ICBTAG_FILE_TYPE_SOCKET: { init_special_inode(inode, inode->i_mode | S_IFSOCK, 0); break; } - case ICBTAG_FILE_TYPE_SYMLINK: + case ICBTAG_FILE_TYPE_SYMLINK: { inode->i_data.a_ops = &udf_symlink_aops; inode->i_op = &page_symlink_inode_operations; - inode->i_mode = S_IFLNK|S_IRWXUGO; + inode->i_mode = S_IFLNK | S_IRWXUGO; break; } - default: + default: { - printk(KERN_ERR "udf: udf_fill_inode(ino %ld) failed unknown file type=%d\n", - inode->i_ino, fe->icbTag.fileType); + printk(KERN_ERR + "udf: udf_fill_inode(ino %ld) failed unknown file type=%d\n", + inode->i_ino, fe->icbTag.fileType); make_bad_inode(inode); return; } } - if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) - { - struct deviceSpec *dsea = - (struct deviceSpec *) - udf_get_extendedattr(inode, 12, 1); + if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { + struct deviceSpec *dsea = (struct deviceSpec *) + udf_get_extendedattr(inode, 12, 1); - if (dsea) - { - init_special_inode(inode, inode->i_mode, MKDEV( - le32_to_cpu(dsea->majorDeviceIdent), - le32_to_cpu(dsea->minorDeviceIdent))); + if (dsea) { + init_special_inode(inode, inode->i_mode, + MKDEV(le32_to_cpu + (dsea->majorDeviceIdent), + le32_to_cpu(dsea-> + minorDeviceIdent))); /* Developer ID ??? */ - } - else - { + } else { make_bad_inode(inode); } } @@ -1391,9 +1409,9 @@ static int udf_alloc_i_data(struct inode *inode, size_t size) { UDF_I_DATA(inode) = kmalloc(size, GFP_KERNEL); - if (!UDF_I_DATA(inode)) - { - printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) no free memory\n", + if (!UDF_I_DATA(inode)) { + printk(KERN_ERR + "udf:udf_alloc_i_data (ino %ld) no free memory\n", inode->i_ino); return -ENOMEM; } @@ -1401,8 +1419,7 @@ static int udf_alloc_i_data(struct inode *inode, size_t size) return 0; } -static mode_t -udf_convert_permissions(struct fileEntry *fe) +static mode_t udf_convert_permissions(struct fileEntry *fe) { mode_t mode; uint32_t permissions; @@ -1411,12 +1428,12 @@ udf_convert_permissions(struct fileEntry *fe) permissions = le32_to_cpu(fe->permissions); flags = le16_to_cpu(fe->icbTag.flags); - mode = (( permissions ) & S_IRWXO) | - (( permissions >> 2 ) & S_IRWXG) | - (( permissions >> 4 ) & S_IRWXU) | - (( flags & ICBTAG_FLAG_SETUID) ? S_ISUID : 0) | - (( flags & ICBTAG_FLAG_SETGID) ? S_ISGID : 0) | - (( flags & ICBTAG_FLAG_STICKY) ? S_ISVTX : 0); + mode = ((permissions) & S_IRWXO) | + ((permissions >> 2) & S_IRWXG) | + ((permissions >> 4) & S_IRWXU) | + ((flags & ICBTAG_FLAG_SETUID) ? S_ISUID : 0) | + ((flags & ICBTAG_FLAG_SETGID) ? S_ISGID : 0) | + ((flags & ICBTAG_FLAG_STICKY) ? S_ISVTX : 0); return mode; } @@ -1436,7 +1453,7 @@ udf_convert_permissions(struct fileEntry *fe) * Written, tested, and released. */ -int udf_write_inode(struct inode * inode, int sync) +int udf_write_inode(struct inode *inode, int sync) { int ret; lock_kernel(); @@ -1445,13 +1462,12 @@ int udf_write_inode(struct inode * inode, int sync) return ret; } -int udf_sync_inode(struct inode * inode) +int udf_sync_inode(struct inode *inode) { return udf_update_inode(inode, 1); } -static int -udf_update_inode(struct inode *inode, int do_sync) +static int udf_update_inode(struct inode *inode, int do_sync) { struct buffer_head *bh = NULL; struct fileEntry *fe; @@ -1464,10 +1480,10 @@ udf_update_inode(struct inode *inode, int do_sync) int err = 0; bh = udf_tread(inode->i_sb, - udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), 0)); + udf_get_lb_pblock(inode->i_sb, UDF_I_LOCATION(inode), + 0)); - if (!bh) - { + if (!bh) { udf_debug("bread failure\n"); return -EIO; } @@ -1477,23 +1493,29 @@ udf_update_inode(struct inode *inode, int do_sync) fe = (struct fileEntry *)bh->b_data; efe = (struct extendedFileEntry *)bh->b_data; - if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) - { + if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE) { struct unallocSpaceEntry *use = - (struct unallocSpaceEntry *)bh->b_data; + (struct unallocSpaceEntry *)bh->b_data; use->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode)); - memcpy(bh->b_data + sizeof(struct unallocSpaceEntry), UDF_I_DATA(inode), inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry)); - crclen = sizeof(struct unallocSpaceEntry) + UDF_I_LENALLOC(inode) - - sizeof(tag); - use->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum); + memcpy(bh->b_data + sizeof(struct unallocSpaceEntry), + UDF_I_DATA(inode), + inode->i_sb->s_blocksize - + sizeof(struct unallocSpaceEntry)); + crclen = + sizeof(struct unallocSpaceEntry) + UDF_I_LENALLOC(inode) - + sizeof(tag); + use->descTag.tagLocation = + cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum); use->descTag.descCRCLength = cpu_to_le16(crclen); - use->descTag.descCRC = cpu_to_le16(udf_crc((char *)use + sizeof(tag), crclen, 0)); + use->descTag.descCRC = + cpu_to_le16(udf_crc((char *)use + sizeof(tag), crclen, 0)); use->descTag.tagChecksum = 0; - for (i=0; i<16; i++) + for (i = 0; i < 16; i++) if (i != 4) - use->descTag.tagChecksum += ((uint8_t *)&(use->descTag))[i]; + use->descTag.tagChecksum += + ((uint8_t *) & (use->descTag))[i]; mark_buffer_dirty(bh); brelse(bh); @@ -1502,20 +1524,21 @@ udf_update_inode(struct inode *inode, int do_sync) if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_FORGET)) fe->uid = cpu_to_le32(-1); - else fe->uid = cpu_to_le32(inode->i_uid); + else + fe->uid = cpu_to_le32(inode->i_uid); if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_FORGET)) fe->gid = cpu_to_le32(-1); - else fe->gid = cpu_to_le32(inode->i_gid); + else + fe->gid = cpu_to_le32(inode->i_gid); - udfperms = ((inode->i_mode & S_IRWXO) ) | - ((inode->i_mode & S_IRWXG) << 2) | - ((inode->i_mode & S_IRWXU) << 4); + udfperms = ((inode->i_mode & S_IRWXO)) | + ((inode->i_mode & S_IRWXG) << 2) | ((inode->i_mode & S_IRWXU) << 4); - udfperms |= (le32_to_cpu(fe->permissions) & - (FE_PERM_O_DELETE | FE_PERM_O_CHATTR | - FE_PERM_G_DELETE | FE_PERM_G_CHATTR | - FE_PERM_U_DELETE | FE_PERM_U_CHATTR)); + udfperms |= (le32_to_cpu(fe->permissions) & + (FE_PERM_O_DELETE | FE_PERM_O_CHATTR | + FE_PERM_G_DELETE | FE_PERM_G_CHATTR | + FE_PERM_U_DELETE | FE_PERM_U_CHATTR)); fe->permissions = cpu_to_le32(udfperms); if (S_ISDIR(inode->i_mode)) @@ -1525,26 +1548,24 @@ udf_update_inode(struct inode *inode, int do_sync) fe->informationLength = cpu_to_le64(inode->i_size); - if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) - { + if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { regid *eid; - struct deviceSpec *dsea = - (struct deviceSpec *) - udf_get_extendedattr(inode, 12, 1); + struct deviceSpec *dsea = (struct deviceSpec *) + udf_get_extendedattr(inode, 12, 1); - if (!dsea) - { + if (!dsea) { dsea = (struct deviceSpec *) - udf_add_extendedattr(inode, - sizeof(struct deviceSpec) + - sizeof(regid), 12, 0x3); + udf_add_extendedattr(inode, + sizeof(struct deviceSpec) + + sizeof(regid), 12, 0x3); dsea->attrType = cpu_to_le32(12); dsea->attrSubtype = 1; - dsea->attrLength = cpu_to_le32(sizeof(struct deviceSpec) + - sizeof(regid)); + dsea->attrLength = + cpu_to_le32(sizeof(struct deviceSpec) + + sizeof(regid)); dsea->impUseLength = cpu_to_le32(sizeof(regid)); } - eid = (regid *)dsea->impUse; + eid = (regid *) dsea->impUse; memset(eid, 0, sizeof(regid)); strcpy(eid->ident, UDF_ID_DEVELOPER); eid->identSuffix[0] = UDF_OS_CLASS_UNIX; @@ -1553,12 +1574,13 @@ udf_update_inode(struct inode *inode, int do_sync) dsea->minorDeviceIdent = cpu_to_le32(iminor(inode)); } - if (UDF_I_EFE(inode) == 0) - { - memcpy(bh->b_data + sizeof(struct fileEntry), UDF_I_DATA(inode), inode->i_sb->s_blocksize - sizeof(struct fileEntry)); - fe->logicalBlocksRecorded = cpu_to_le64( - (inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >> - (inode->i_sb->s_blocksize_bits - 9)); + if (UDF_I_EFE(inode) == 0) { + memcpy(bh->b_data + sizeof(struct fileEntry), UDF_I_DATA(inode), + inode->i_sb->s_blocksize - sizeof(struct fileEntry)); + fe->logicalBlocksRecorded = + cpu_to_le64((inode->i_blocks + + (1 << (inode->i_sb->s_blocksize_bits - 9)) - + 1) >> (inode->i_sb->s_blocksize_bits - 9)); if (udf_time_to_stamp(&cpu_time, inode->i_atime)) fe->accessTime = cpu_to_lets(cpu_time); @@ -1575,31 +1597,34 @@ udf_update_inode(struct inode *inode, int do_sync) fe->lengthAllocDescs = cpu_to_le32(UDF_I_LENALLOC(inode)); fe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_FE); crclen = sizeof(struct fileEntry); - } - else - { - memcpy(bh->b_data + sizeof(struct extendedFileEntry), UDF_I_DATA(inode), inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry)); + } else { + memcpy(bh->b_data + sizeof(struct extendedFileEntry), + UDF_I_DATA(inode), + inode->i_sb->s_blocksize - + sizeof(struct extendedFileEntry)); efe->objectSize = cpu_to_le64(inode->i_size); - efe->logicalBlocksRecorded = cpu_to_le64( - (inode->i_blocks + (1 << (inode->i_sb->s_blocksize_bits - 9)) - 1) >> - (inode->i_sb->s_blocksize_bits - 9)); + efe->logicalBlocksRecorded = cpu_to_le64((inode->i_blocks + + (1 << + (inode->i_sb-> + s_blocksize_bits - + 9)) - + 1) >> (inode->i_sb-> + s_blocksize_bits + - 9)); if (UDF_I_CRTIME(inode).tv_sec > inode->i_atime.tv_sec || - (UDF_I_CRTIME(inode).tv_sec == inode->i_atime.tv_sec && - UDF_I_CRTIME(inode).tv_nsec > inode->i_atime.tv_nsec)) - { + (UDF_I_CRTIME(inode).tv_sec == inode->i_atime.tv_sec && + UDF_I_CRTIME(inode).tv_nsec > inode->i_atime.tv_nsec)) { UDF_I_CRTIME(inode) = inode->i_atime; } if (UDF_I_CRTIME(inode).tv_sec > inode->i_mtime.tv_sec || - (UDF_I_CRTIME(inode).tv_sec == inode->i_mtime.tv_sec && - UDF_I_CRTIME(inode).tv_nsec > inode->i_mtime.tv_nsec)) - { + (UDF_I_CRTIME(inode).tv_sec == inode->i_mtime.tv_sec && + UDF_I_CRTIME(inode).tv_nsec > inode->i_mtime.tv_nsec)) { UDF_I_CRTIME(inode) = inode->i_mtime; } if (UDF_I_CRTIME(inode).tv_sec > inode->i_ctime.tv_sec || - (UDF_I_CRTIME(inode).tv_sec == inode->i_ctime.tv_sec && - UDF_I_CRTIME(inode).tv_nsec > inode->i_ctime.tv_nsec)) - { + (UDF_I_CRTIME(inode).tv_sec == inode->i_ctime.tv_sec && + UDF_I_CRTIME(inode).tv_nsec > inode->i_ctime.tv_nsec)) { UDF_I_CRTIME(inode) = inode->i_ctime; } @@ -1622,14 +1647,11 @@ udf_update_inode(struct inode *inode, int do_sync) efe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EFE); crclen = sizeof(struct extendedFileEntry); } - if (UDF_I_STRAT4096(inode)) - { + if (UDF_I_STRAT4096(inode)) { fe->icbTag.strategyType = cpu_to_le16(4096); fe->icbTag.strategyParameter = cpu_to_le16(1); fe->icbTag.numEntries = cpu_to_le16(2); - } - else - { + } else { fe->icbTag.strategyType = cpu_to_le16(4); fe->icbTag.numEntries = cpu_to_le16(1); } @@ -1649,13 +1671,13 @@ udf_update_inode(struct inode *inode, int do_sync) else if (S_ISSOCK(inode->i_mode)) fe->icbTag.fileType = ICBTAG_FILE_TYPE_SOCKET; - icbflags = UDF_I_ALLOCTYPE(inode) | - ((inode->i_mode & S_ISUID) ? ICBTAG_FLAG_SETUID : 0) | - ((inode->i_mode & S_ISGID) ? ICBTAG_FLAG_SETGID : 0) | - ((inode->i_mode & S_ISVTX) ? ICBTAG_FLAG_STICKY : 0) | - (le16_to_cpu(fe->icbTag.flags) & - ~(ICBTAG_FLAG_AD_MASK | ICBTAG_FLAG_SETUID | - ICBTAG_FLAG_SETGID | ICBTAG_FLAG_STICKY)); + icbflags = UDF_I_ALLOCTYPE(inode) | + ((inode->i_mode & S_ISUID) ? ICBTAG_FLAG_SETUID : 0) | + ((inode->i_mode & S_ISGID) ? ICBTAG_FLAG_SETGID : 0) | + ((inode->i_mode & S_ISVTX) ? ICBTAG_FLAG_STICKY : 0) | + (le16_to_cpu(fe->icbTag.flags) & + ~(ICBTAG_FLAG_AD_MASK | ICBTAG_FLAG_SETUID | + ICBTAG_FLAG_SETGID | ICBTAG_FLAG_STICKY)); fe->icbTag.flags = cpu_to_le16(icbflags); if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200) @@ -1663,25 +1685,26 @@ udf_update_inode(struct inode *inode, int do_sync) else fe->descTag.descVersion = cpu_to_le16(2); fe->descTag.tagSerialNum = cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb)); - fe->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum); + fe->descTag.tagLocation = + cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum); crclen += UDF_I_LENEATTR(inode) + UDF_I_LENALLOC(inode) - sizeof(tag); fe->descTag.descCRCLength = cpu_to_le16(crclen); - fe->descTag.descCRC = cpu_to_le16(udf_crc((char *)fe + sizeof(tag), crclen, 0)); + fe->descTag.descCRC = + cpu_to_le16(udf_crc((char *)fe + sizeof(tag), crclen, 0)); fe->descTag.tagChecksum = 0; - for (i=0; i<16; i++) + for (i = 0; i < 16; i++) if (i != 4) - fe->descTag.tagChecksum += ((uint8_t *)&(fe->descTag))[i]; + fe->descTag.tagChecksum += + ((uint8_t *) & (fe->descTag))[i]; /* write the data blocks */ mark_buffer_dirty(bh); - if (do_sync) - { + if (do_sync) { sync_dirty_buffer(bh); - if (buffer_req(bh) && !buffer_uptodate(bh)) - { + if (buffer_req(bh) && !buffer_uptodate(bh)) { printk("IO error syncing udf inode [%s:%08lx]\n", - inode->i_sb->s_id, inode->i_ino); + inode->i_sb->s_id, inode->i_ino); err = -EIO; } } @@ -1689,8 +1712,7 @@ udf_update_inode(struct inode *inode, int do_sync) return err; } -struct inode * -udf_iget(struct super_block *sb, kernel_lb_addr ino) +struct inode *udf_iget(struct super_block *sb, kernel_lb_addr ino) { unsigned long block = udf_get_lb_pblock(sb, ino, 0); struct inode *inode = iget_locked(sb, block); @@ -1707,22 +1729,23 @@ udf_iget(struct super_block *sb, kernel_lb_addr ino) if (is_bad_inode(inode)) goto out_iput; - if (ino.logicalBlockNum >= UDF_SB_PARTLEN(sb, ino.partitionReferenceNum)) { + if (ino.logicalBlockNum >= + UDF_SB_PARTLEN(sb, ino.partitionReferenceNum)) { udf_debug("block=%d, partition=%d out of range\n", - ino.logicalBlockNum, ino.partitionReferenceNum); + ino.logicalBlockNum, ino.partitionReferenceNum); make_bad_inode(inode); goto out_iput; } return inode; - out_iput: + out_iput: iput(inode); return NULL; } -int8_t udf_add_aext(struct inode *inode, struct extent_position *epos, - kernel_lb_addr eloc, uint32_t elen, int inc) +int8_t udf_add_aext(struct inode * inode, struct extent_position * epos, + kernel_lb_addr eloc, uint32_t elen, int inc) { int adsize; short_ad *sad = NULL; @@ -1732,7 +1755,9 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos, uint8_t *ptr; if (!epos->bh) - ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode); + ptr = + UDF_I_DATA(inode) + epos->offset - + udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode); else ptr = epos->bh->b_data + epos->offset; @@ -1743,21 +1768,24 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos, else return -1; - if (epos->offset + (2 * adsize) > inode->i_sb->s_blocksize) - { + if (epos->offset + (2 * adsize) > inode->i_sb->s_blocksize) { char *sptr, *dptr; struct buffer_head *nbh; int err, loffset; kernel_lb_addr obloc = epos->block; - if (!(epos->block.logicalBlockNum = udf_new_block(inode->i_sb, NULL, - obloc.partitionReferenceNum, obloc.logicalBlockNum, &err))) - { + if (! + (epos->block.logicalBlockNum = + udf_new_block(inode->i_sb, NULL, + obloc.partitionReferenceNum, + obloc.logicalBlockNum, &err))) { return -1; } - if (!(nbh = udf_tgetblk(inode->i_sb, udf_get_lb_pblock(inode->i_sb, - epos->block, 0)))) - { + if (! + (nbh = + udf_tgetblk(inode->i_sb, + udf_get_lb_pblock(inode->i_sb, epos->block, + 0)))) { return -1; } lock_buffer(nbh); @@ -1768,144 +1796,142 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos, aed = (struct allocExtDesc *)(nbh->b_data); if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT)) - aed->previousAllocExtLocation = cpu_to_le32(obloc.logicalBlockNum); - if (epos->offset + adsize > inode->i_sb->s_blocksize) - { + aed->previousAllocExtLocation = + cpu_to_le32(obloc.logicalBlockNum); + if (epos->offset + adsize > inode->i_sb->s_blocksize) { loffset = epos->offset; aed->lengthAllocDescs = cpu_to_le32(adsize); sptr = ptr - adsize; dptr = nbh->b_data + sizeof(struct allocExtDesc); memcpy(dptr, sptr, adsize); epos->offset = sizeof(struct allocExtDesc) + adsize; - } - else - { + } else { loffset = epos->offset + adsize; aed->lengthAllocDescs = cpu_to_le32(0); sptr = ptr; epos->offset = sizeof(struct allocExtDesc); - if (epos->bh) - { + if (epos->bh) { aed = (struct allocExtDesc *)epos->bh->b_data; aed->lengthAllocDescs = - cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize); - } - else - { + cpu_to_le32(le32_to_cpu + (aed->lengthAllocDescs) + + adsize); + } else { UDF_I_LENALLOC(inode) += adsize; mark_inode_dirty(inode); } } if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200) udf_new_tag(nbh->b_data, TAG_IDENT_AED, 3, 1, - epos->block.logicalBlockNum, sizeof(tag)); + epos->block.logicalBlockNum, sizeof(tag)); else udf_new_tag(nbh->b_data, TAG_IDENT_AED, 2, 1, - epos->block.logicalBlockNum, sizeof(tag)); - switch (UDF_I_ALLOCTYPE(inode)) - { - case ICBTAG_FLAG_AD_SHORT: + epos->block.logicalBlockNum, sizeof(tag)); + switch (UDF_I_ALLOCTYPE(inode)) { + case ICBTAG_FLAG_AD_SHORT: { - sad = (short_ad *)sptr; - sad->extLength = cpu_to_le32( - EXT_NEXT_EXTENT_ALLOCDECS | - inode->i_sb->s_blocksize); - sad->extPosition = cpu_to_le32(epos->block.logicalBlockNum); + sad = (short_ad *) sptr; + sad->extLength = + cpu_to_le32(EXT_NEXT_EXTENT_ALLOCDECS | + inode->i_sb->s_blocksize); + sad->extPosition = + cpu_to_le32(epos->block.logicalBlockNum); break; } - case ICBTAG_FLAG_AD_LONG: + case ICBTAG_FLAG_AD_LONG: { - lad = (long_ad *)sptr; - lad->extLength = cpu_to_le32( - EXT_NEXT_EXTENT_ALLOCDECS | - inode->i_sb->s_blocksize); + lad = (long_ad *) sptr; + lad->extLength = + cpu_to_le32(EXT_NEXT_EXTENT_ALLOCDECS | + inode->i_sb->s_blocksize); lad->extLocation = cpu_to_lelb(epos->block); memset(lad->impUse, 0x00, sizeof(lad->impUse)); break; } } - if (epos->bh) - { - if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) + if (epos->bh) { + if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) udf_update_tag(epos->bh->b_data, loffset); else - udf_update_tag(epos->bh->b_data, sizeof(struct allocExtDesc)); + udf_update_tag(epos->bh->b_data, + sizeof(struct allocExtDesc)); mark_buffer_dirty_inode(epos->bh, inode); brelse(epos->bh); - } - else + } else mark_inode_dirty(inode); epos->bh = nbh; } etype = udf_write_aext(inode, epos, eloc, elen, inc); - if (!epos->bh) - { + if (!epos->bh) { UDF_I_LENALLOC(inode) += adsize; mark_inode_dirty(inode); - } - else - { + } else { aed = (struct allocExtDesc *)epos->bh->b_data; aed->lengthAllocDescs = - cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize); - if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) - udf_update_tag(epos->bh->b_data, epos->offset + (inc ? 0 : adsize)); + cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize); + if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) + udf_update_tag(epos->bh->b_data, + epos->offset + (inc ? 0 : adsize)); else - udf_update_tag(epos->bh->b_data, sizeof(struct allocExtDesc)); + udf_update_tag(epos->bh->b_data, + sizeof(struct allocExtDesc)); mark_buffer_dirty_inode(epos->bh, inode); } return etype; } -int8_t udf_write_aext(struct inode *inode, struct extent_position *epos, - kernel_lb_addr eloc, uint32_t elen, int inc) +int8_t udf_write_aext(struct inode * inode, struct extent_position * epos, + kernel_lb_addr eloc, uint32_t elen, int inc) { int adsize; uint8_t *ptr; if (!epos->bh) - ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode); + ptr = + UDF_I_DATA(inode) + epos->offset - + udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode); else ptr = epos->bh->b_data + epos->offset; - switch (UDF_I_ALLOCTYPE(inode)) - { - case ICBTAG_FLAG_AD_SHORT: + switch (UDF_I_ALLOCTYPE(inode)) { + case ICBTAG_FLAG_AD_SHORT: { - short_ad *sad = (short_ad *)ptr; + short_ad *sad = (short_ad *) ptr; sad->extLength = cpu_to_le32(elen); sad->extPosition = cpu_to_le32(eloc.logicalBlockNum); adsize = sizeof(short_ad); break; } - case ICBTAG_FLAG_AD_LONG: + case ICBTAG_FLAG_AD_LONG: { - long_ad *lad = (long_ad *)ptr; + long_ad *lad = (long_ad *) ptr; lad->extLength = cpu_to_le32(elen); lad->extLocation = cpu_to_lelb(eloc); memset(lad->impUse, 0x00, sizeof(lad->impUse)); adsize = sizeof(long_ad); break; } - default: - return -1; + default: + return -1; } - if (epos->bh) - { - if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) - { - struct allocExtDesc *aed = (struct allocExtDesc *)epos->bh->b_data; + if (epos->bh) { + if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) { + struct allocExtDesc *aed = + (struct allocExtDesc *)epos->bh->b_data; udf_update_tag(epos->bh->b_data, - le32_to_cpu(aed->lengthAllocDescs) + sizeof(struct allocExtDesc)); + le32_to_cpu(aed->lengthAllocDescs) + + sizeof(struct allocExtDesc)); } mark_buffer_dirty_inode(epos->bh, inode); - } - else + } else mark_inode_dirty(inode); if (inc) @@ -1913,21 +1939,24 @@ int8_t udf_write_aext(struct inode *inode, struct extent_position *epos, return (elen >> 30); } -int8_t udf_next_aext(struct inode *inode, struct extent_position *epos, - kernel_lb_addr *eloc, uint32_t *elen, int inc) +int8_t udf_next_aext(struct inode * inode, struct extent_position * epos, + kernel_lb_addr * eloc, uint32_t * elen, int inc) { int8_t etype; while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) == - (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) - { + (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) { epos->block = *eloc; epos->offset = sizeof(struct allocExtDesc); brelse(epos->bh); - if (!(epos->bh = udf_tread(inode->i_sb, udf_get_lb_pblock(inode->i_sb, epos->block, 0)))) - { + if (! + (epos->bh = + udf_tread(inode->i_sb, + udf_get_lb_pblock(inode->i_sb, epos->block, + 0)))) { udf_debug("reading block %d failed!\n", - udf_get_lb_pblock(inode->i_sb, epos->block, 0)); + udf_get_lb_pblock(inode->i_sb, epos->block, + 0)); return -1; } } @@ -1935,58 +1964,71 @@ int8_t udf_next_aext(struct inode *inode, struct extent_position *epos, return etype; } -int8_t udf_current_aext(struct inode *inode, struct extent_position *epos, - kernel_lb_addr *eloc, uint32_t *elen, int inc) +int8_t udf_current_aext(struct inode * inode, struct extent_position * epos, + kernel_lb_addr * eloc, uint32_t * elen, int inc) { int alen; int8_t etype; uint8_t *ptr; - if (!epos->bh) - { + if (!epos->bh) { if (!epos->offset) epos->offset = udf_file_entry_alloc_offset(inode); - ptr = UDF_I_DATA(inode) + epos->offset - udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode); - alen = udf_file_entry_alloc_offset(inode) + UDF_I_LENALLOC(inode); - } - else - { + ptr = + UDF_I_DATA(inode) + epos->offset - + udf_file_entry_alloc_offset(inode) + UDF_I_LENEATTR(inode); + alen = + udf_file_entry_alloc_offset(inode) + UDF_I_LENALLOC(inode); + } else { if (!epos->offset) epos->offset = sizeof(struct allocExtDesc); ptr = epos->bh->b_data + epos->offset; - alen = sizeof(struct allocExtDesc) + le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->lengthAllocDescs); + alen = + sizeof(struct allocExtDesc) + + le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)-> + lengthAllocDescs); } - switch (UDF_I_ALLOCTYPE(inode)) - { - case ICBTAG_FLAG_AD_SHORT: + switch (UDF_I_ALLOCTYPE(inode)) { + case ICBTAG_FLAG_AD_SHORT: { short_ad *sad; - if (!(sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc))) + if (! + (sad = + udf_get_fileshortad(ptr, alen, &epos->offset, + inc))) return -1; etype = le32_to_cpu(sad->extLength) >> 30; eloc->logicalBlockNum = le32_to_cpu(sad->extPosition); - eloc->partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum; - *elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK; + eloc->partitionReferenceNum = + UDF_I_LOCATION(inode).partitionReferenceNum; + *elen = + le32_to_cpu(sad-> + extLength) & UDF_EXTENT_LENGTH_MASK; break; } - case ICBTAG_FLAG_AD_LONG: + case ICBTAG_FLAG_AD_LONG: { long_ad *lad; - if (!(lad = udf_get_filelongad(ptr, alen, &epos->offset, inc))) + if (! + (lad = + udf_get_filelongad(ptr, alen, &epos->offset, inc))) return -1; etype = le32_to_cpu(lad->extLength) >> 30; *eloc = lelb_to_cpu(lad->extLocation); - *elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK; + *elen = + le32_to_cpu(lad-> + extLength) & UDF_EXTENT_LENGTH_MASK; break; } - default: + default: { - udf_debug("alloc_type = %d unsupported\n", UDF_I_ALLOCTYPE(inode)); + udf_debug("alloc_type = %d unsupported\n", + UDF_I_ALLOCTYPE(inode)); return -1; } } @@ -2005,8 +2047,7 @@ udf_insert_aext(struct inode *inode, struct extent_position epos, if (epos.bh) get_bh(epos.bh); - while ((etype = udf_next_aext(inode, &epos, &oeloc, &oelen, 0)) != -1) - { + while ((etype = udf_next_aext(inode, &epos, &oeloc, &oelen, 0)) != -1) { udf_write_aext(inode, &epos, neloc, nelen, 1); neloc = oeloc; @@ -2017,16 +2058,15 @@ udf_insert_aext(struct inode *inode, struct extent_position epos, return (nelen >> 30); } -int8_t udf_delete_aext(struct inode *inode, struct extent_position epos, - kernel_lb_addr eloc, uint32_t elen) +int8_t udf_delete_aext(struct inode * inode, struct extent_position epos, + kernel_lb_addr eloc, uint32_t elen) { struct extent_position oepos; int adsize; int8_t etype; struct allocExtDesc *aed; - if (epos.bh) - { + if (epos.bh) { get_bh(epos.bh); get_bh(epos.bh); } @@ -2042,11 +2082,9 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos, if (udf_next_aext(inode, &epos, &eloc, &elen, 1) == -1) return -1; - while ((etype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) - { + while ((etype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) { udf_write_aext(inode, &oepos, eloc, (etype << 30) | elen, 1); - if (oepos.bh != epos.bh) - { + if (oepos.bh != epos.bh) { oepos.block = epos.block; brelse(oepos.bh); get_bh(epos.bh); @@ -2057,45 +2095,44 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos, memset(&eloc, 0x00, sizeof(kernel_lb_addr)); elen = 0; - if (epos.bh != oepos.bh) - { + if (epos.bh != oepos.bh) { udf_free_blocks(inode->i_sb, inode, epos.block, 0, 1); udf_write_aext(inode, &oepos, eloc, elen, 1); udf_write_aext(inode, &oepos, eloc, elen, 1); - if (!oepos.bh) - { + if (!oepos.bh) { UDF_I_LENALLOC(inode) -= (adsize * 2); mark_inode_dirty(inode); - } - else - { + } else { aed = (struct allocExtDesc *)oepos.bh->b_data; aed->lengthAllocDescs = - cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - (2*adsize)); - if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) - udf_update_tag(oepos.bh->b_data, oepos.offset - (2*adsize)); + cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - + (2 * adsize)); + if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) + udf_update_tag(oepos.bh->b_data, + oepos.offset - (2 * adsize)); else - udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc)); + udf_update_tag(oepos.bh->b_data, + sizeof(struct allocExtDesc)); mark_buffer_dirty_inode(oepos.bh, inode); } - } - else - { + } else { udf_write_aext(inode, &oepos, eloc, elen, 1); - if (!oepos.bh) - { + if (!oepos.bh) { UDF_I_LENALLOC(inode) -= adsize; mark_inode_dirty(inode); - } - else - { + } else { aed = (struct allocExtDesc *)oepos.bh->b_data; aed->lengthAllocDescs = - cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - adsize); - if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) - udf_update_tag(oepos.bh->b_data, epos.offset - adsize); + cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) - + adsize); + if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) + udf_update_tag(oepos.bh->b_data, + epos.offset - adsize); else - udf_update_tag(oepos.bh->b_data, sizeof(struct allocExtDesc)); + udf_update_tag(oepos.bh->b_data, + sizeof(struct allocExtDesc)); mark_buffer_dirty_inode(oepos.bh, inode); } } @@ -2105,14 +2142,15 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos, return (elen >> 30); } -int8_t inode_bmap(struct inode *inode, sector_t block, struct extent_position *pos, - kernel_lb_addr *eloc, uint32_t *elen, sector_t *offset) +int8_t inode_bmap(struct inode * inode, sector_t block, + struct extent_position * pos, kernel_lb_addr * eloc, + uint32_t * elen, sector_t * offset) { - loff_t lbcount = 0, bcount = (loff_t)block << inode->i_sb->s_blocksize_bits; + loff_t lbcount = 0, bcount = + (loff_t) block << inode->i_sb->s_blocksize_bits; int8_t etype; - if (block < 0) - { + if (block < 0) { printk(KERN_ERR "udf: inode_bmap: block < 0\n"); return -1; } @@ -2122,11 +2160,10 @@ int8_t inode_bmap(struct inode *inode, sector_t block, struct extent_position *p pos->bh = NULL; *elen = 0; - do - { - if ((etype = udf_next_aext(inode, pos, eloc, elen, 1)) == -1) - { - *offset = (bcount - lbcount) >> inode->i_sb->s_blocksize_bits; + do { + if ((etype = udf_next_aext(inode, pos, eloc, elen, 1)) == -1) { + *offset = + (bcount - lbcount) >> inode->i_sb->s_blocksize_bits; UDF_I_LENEXTENTS(inode) = lbcount; return -1; } @@ -2143,12 +2180,13 @@ long udf_block_map(struct inode *inode, sector_t block) kernel_lb_addr eloc; uint32_t elen; sector_t offset; - struct extent_position epos = { NULL, 0, { 0, 0}}; + struct extent_position epos = { NULL, 0, {0, 0} }; int ret; lock_kernel(); - if (inode_bmap(inode, block, &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) + if (inode_bmap(inode, block, &epos, &eloc, &elen, &offset) == + (EXT_RECORDED_ALLOCATED >> 30)) ret = udf_get_lb_pblock(inode->i_sb, eloc, offset); else ret = 0; diff --git a/fs/udf/lowlevel.c b/fs/udf/lowlevel.c index 084216107667..4826c3616eef 100644 --- a/fs/udf/lowlevel.c +++ b/fs/udf/lowlevel.c @@ -26,43 +26,38 @@ #include <linux/udf_fs.h> #include "udf_sb.h" -unsigned int -udf_get_last_session(struct super_block *sb) +unsigned int udf_get_last_session(struct super_block *sb) { struct cdrom_multisession ms_info; unsigned int vol_desc_start; struct block_device *bdev = sb->s_bdev; int i; - vol_desc_start=0; - ms_info.addr_format=CDROM_LBA; - i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info); + vol_desc_start = 0; + ms_info.addr_format = CDROM_LBA; + i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long)&ms_info); #define WE_OBEY_THE_WRITTEN_STANDARDS 1 - if (i == 0) - { + if (i == 0) { udf_debug("XA disk: %s, vol_desc_start=%d\n", - (ms_info.xa_flag ? "yes" : "no"), ms_info.addr.lba); + (ms_info.xa_flag ? "yes" : "no"), ms_info.addr.lba); #if WE_OBEY_THE_WRITTEN_STANDARDS - if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */ + if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */ #endif vol_desc_start = ms_info.addr.lba; - } - else - { + } else { udf_debug("CDROMMULTISESSION not supported: rc=%d\n", i); } return vol_desc_start; } -unsigned long -udf_get_last_block(struct super_block *sb) +unsigned long udf_get_last_block(struct super_block *sb) { struct block_device *bdev = sb->s_bdev; unsigned long lblock = 0; - if (ioctl_by_bdev(bdev, CDROM_LAST_WRITTEN, (unsigned long) &lblock)) + if (ioctl_by_bdev(bdev, CDROM_LAST_WRITTEN, (unsigned long)&lblock)) lblock = bdev->bd_inode->i_size >> sb->s_blocksize_bits; if (lblock) diff --git a/fs/udf/misc.c b/fs/udf/misc.c index a2b2a98ce78a..a7f57277a96e 100644 --- a/fs/udf/misc.c +++ b/fs/udf/misc.c @@ -29,8 +29,7 @@ #include "udf_i.h" #include "udf_sb.h" -struct buffer_head * -udf_tgetblk(struct super_block *sb, int block) +struct buffer_head *udf_tgetblk(struct super_block *sb, int block) { if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV)) return sb_getblk(sb, udf_fixed_to_variable(block)); @@ -38,8 +37,7 @@ udf_tgetblk(struct super_block *sb, int block) return sb_getblk(sb, block); } -struct buffer_head * -udf_tread(struct super_block *sb, int block) +struct buffer_head *udf_tread(struct super_block *sb, int block) { if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV)) return sb_bread(sb, udf_fixed_to_variable(block)); @@ -47,9 +45,8 @@ udf_tread(struct super_block *sb, int block) return sb_bread(sb, block); } -struct genericFormat * -udf_add_extendedattr(struct inode * inode, uint32_t size, uint32_t type, - uint8_t loc) +struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size, + uint32_t type, uint8_t loc) { uint8_t *ea = NULL, *ad = NULL; int offset; @@ -59,78 +56,76 @@ udf_add_extendedattr(struct inode * inode, uint32_t size, uint32_t type, ea = UDF_I_DATA(inode); if (UDF_I_LENEATTR(inode)) ad = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode); - else - { + else { ad = ea; size += sizeof(struct extendedAttrHeaderDesc); } offset = inode->i_sb->s_blocksize - udf_file_entry_alloc_offset(inode) - - UDF_I_LENALLOC(inode); + UDF_I_LENALLOC(inode); /* TODO - Check for FreeEASpace */ - if (loc & 0x01 && offset >= size) - { + if (loc & 0x01 && offset >= size) { struct extendedAttrHeaderDesc *eahd; eahd = (struct extendedAttrHeaderDesc *)ea; - if (UDF_I_LENALLOC(inode)) - { + if (UDF_I_LENALLOC(inode)) { memmove(&ad[size], ad, UDF_I_LENALLOC(inode)); } - if (UDF_I_LENEATTR(inode)) - { + if (UDF_I_LENEATTR(inode)) { /* check checksum/crc */ - if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD || - le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) - { + if (le16_to_cpu(eahd->descTag.tagIdent) != + TAG_IDENT_EAHD + || le32_to_cpu(eahd->descTag.tagLocation) != + UDF_I_LOCATION(inode).logicalBlockNum) { return NULL; } - } - else - { + } else { size -= sizeof(struct extendedAttrHeaderDesc); - UDF_I_LENEATTR(inode) += sizeof(struct extendedAttrHeaderDesc); + UDF_I_LENEATTR(inode) += + sizeof(struct extendedAttrHeaderDesc); eahd->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EAHD); if (UDF_SB_UDFREV(inode->i_sb) >= 0x0200) eahd->descTag.descVersion = cpu_to_le16(3); else eahd->descTag.descVersion = cpu_to_le16(2); - eahd->descTag.tagSerialNum = cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb)); - eahd->descTag.tagLocation = cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum); + eahd->descTag.tagSerialNum = + cpu_to_le16(UDF_SB_SERIALNUM(inode->i_sb)); + eahd->descTag.tagLocation = + cpu_to_le32(UDF_I_LOCATION(inode).logicalBlockNum); eahd->impAttrLocation = cpu_to_le32(0xFFFFFFFF); eahd->appAttrLocation = cpu_to_le32(0xFFFFFFFF); } offset = UDF_I_LENEATTR(inode); - if (type < 2048) - { - if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) - { - uint32_t aal = le32_to_cpu(eahd->appAttrLocation); - memmove(&ea[offset - aal + size], - &ea[aal], offset - aal); + if (type < 2048) { + if (le32_to_cpu(eahd->appAttrLocation) < + UDF_I_LENEATTR(inode)) { + uint32_t aal = + le32_to_cpu(eahd->appAttrLocation); + memmove(&ea[offset - aal + size], &ea[aal], + offset - aal); offset -= aal; eahd->appAttrLocation = cpu_to_le32(aal + size); } - if (le32_to_cpu(eahd->impAttrLocation) < UDF_I_LENEATTR(inode)) - { - uint32_t ial = le32_to_cpu(eahd->impAttrLocation); - memmove(&ea[offset - ial + size], - &ea[ial], offset - ial); + if (le32_to_cpu(eahd->impAttrLocation) < + UDF_I_LENEATTR(inode)) { + uint32_t ial = + le32_to_cpu(eahd->impAttrLocation); + memmove(&ea[offset - ial + size], &ea[ial], + offset - ial); offset -= ial; eahd->impAttrLocation = cpu_to_le32(ial + size); } - } - else if (type < 65536) - { - if (le32_to_cpu(eahd->appAttrLocation) < UDF_I_LENEATTR(inode)) - { - uint32_t aal = le32_to_cpu(eahd->appAttrLocation); - memmove(&ea[offset - aal + size], - &ea[aal], offset - aal); + } else if (type < 65536) { + if (le32_to_cpu(eahd->appAttrLocation) < + UDF_I_LENEATTR(inode)) { + uint32_t aal = + le32_to_cpu(eahd->appAttrLocation); + memmove(&ea[offset - aal + size], &ea[aal], + offset - aal); offset -= aal; eahd->appAttrLocation = cpu_to_le32(aal + size); } @@ -138,22 +133,23 @@ udf_add_extendedattr(struct inode * inode, uint32_t size, uint32_t type, /* rewrite CRC + checksum of eahd */ crclen = sizeof(struct extendedAttrHeaderDesc) - sizeof(tag); eahd->descTag.descCRCLength = cpu_to_le16(crclen); - eahd->descTag.descCRC = cpu_to_le16(udf_crc((char *)eahd + sizeof(tag), crclen, 0)); + eahd->descTag.descCRC = + cpu_to_le16(udf_crc((char *)eahd + sizeof(tag), crclen, 0)); eahd->descTag.tagChecksum = 0; - for (i=0; i<16; i++) + for (i = 0; i < 16; i++) if (i != 4) - eahd->descTag.tagChecksum += ((uint8_t *)&(eahd->descTag))[i]; + eahd->descTag.tagChecksum += + ((uint8_t *) & (eahd->descTag))[i]; UDF_I_LENEATTR(inode) += size; return (struct genericFormat *)&ea[offset]; } - if (loc & 0x02) - { + if (loc & 0x02) { } return NULL; } -struct genericFormat * -udf_get_extendedattr(struct inode *inode, uint32_t type, uint8_t subtype) +struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type, + uint8_t subtype) { struct genericFormat *gaf; uint8_t *ea = NULL; @@ -161,18 +157,17 @@ udf_get_extendedattr(struct inode *inode, uint32_t type, uint8_t subtype) ea = UDF_I_DATA(inode); - if (UDF_I_LENEATTR(inode)) - { + if (UDF_I_LENEATTR(inode)) { struct extendedAttrHeaderDesc *eahd; eahd = (struct extendedAttrHeaderDesc *)ea; /* check checksum/crc */ if (le16_to_cpu(eahd->descTag.tagIdent) != TAG_IDENT_EAHD || - le32_to_cpu(eahd->descTag.tagLocation) != UDF_I_LOCATION(inode).logicalBlockNum) - { + le32_to_cpu(eahd->descTag.tagLocation) != + UDF_I_LOCATION(inode).logicalBlockNum) { return NULL; } - + if (type < 2048) offset = sizeof(struct extendedAttrHeaderDesc); else if (type < 65536) @@ -180,10 +175,10 @@ udf_get_extendedattr(struct inode *inode, uint32_t type, uint8_t subtype) else offset = le32_to_cpu(eahd->appAttrLocation); - while (offset < UDF_I_LENEATTR(inode)) - { + while (offset < UDF_I_LENEATTR(inode)) { gaf = (struct genericFormat *)&ea[offset]; - if (le32_to_cpu(gaf->attrType) == type && gaf->attrSubtype == subtype) + if (le32_to_cpu(gaf->attrType) == type + && gaf->attrSubtype == subtype) return gaf; else offset += le32_to_cpu(gaf->attrLength); @@ -202,8 +197,8 @@ udf_get_extendedattr(struct inode *inode, uint32_t type, uint8_t subtype) * July 1, 1997 - Andrew E. Mileski * Written, tested, and released. */ -struct buffer_head * -udf_read_tagged(struct super_block *sb, uint32_t block, uint32_t location, uint16_t *ident) +struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block, + uint32_t location, uint16_t * ident) { tag *tag_p; struct buffer_head *bh = NULL; @@ -215,29 +210,29 @@ udf_read_tagged(struct super_block *sb, uint32_t block, uint32_t location, uint1 return NULL; bh = udf_tread(sb, block + UDF_SB_SESSION(sb)); - if (!bh) - { - udf_debug("block=%d, location=%d: read failed\n", block + UDF_SB_SESSION(sb), location); + if (!bh) { + udf_debug("block=%d, location=%d: read failed\n", + block + UDF_SB_SESSION(sb), location); return NULL; } - tag_p = (tag *)(bh->b_data); + tag_p = (tag *) (bh->b_data); *ident = le16_to_cpu(tag_p->tagIdent); - if ( location != le32_to_cpu(tag_p->tagLocation) ) - { + if (location != le32_to_cpu(tag_p->tagLocation)) { udf_debug("location mismatch block %u, tag %u != %u\n", - block + UDF_SB_SESSION(sb), le32_to_cpu(tag_p->tagLocation), location); + block + UDF_SB_SESSION(sb), + le32_to_cpu(tag_p->tagLocation), location); goto error_out; } - + /* Verify the tag checksum */ checksum = 0U; for (i = 0; i < 4; i++) - checksum += (uint8_t)(bh->b_data[i]); + checksum += (uint8_t) (bh->b_data[i]); for (i = 5; i < 16; i++) - checksum += (uint8_t)(bh->b_data[i]); + checksum += (uint8_t) (bh->b_data[i]); if (checksum != tag_p->tagChecksum) { printk(KERN_ERR "udf: tag checksum failed block %d\n", block); goto error_out; @@ -245,38 +240,39 @@ udf_read_tagged(struct super_block *sb, uint32_t block, uint32_t location, uint1 /* Verify the tag version */ if (le16_to_cpu(tag_p->descVersion) != 0x0002U && - le16_to_cpu(tag_p->descVersion) != 0x0003U) - { + le16_to_cpu(tag_p->descVersion) != 0x0003U) { udf_debug("tag version 0x%04x != 0x0002 || 0x0003 block %d\n", - le16_to_cpu(tag_p->descVersion), block); + le16_to_cpu(tag_p->descVersion), block); goto error_out; } /* Verify the descriptor CRC */ if (le16_to_cpu(tag_p->descCRCLength) + sizeof(tag) > sb->s_blocksize || - le16_to_cpu(tag_p->descCRC) == udf_crc(bh->b_data + sizeof(tag), - le16_to_cpu(tag_p->descCRCLength), 0)) - { + le16_to_cpu(tag_p->descCRC) == udf_crc(bh->b_data + sizeof(tag), + le16_to_cpu(tag_p-> + descCRCLength), + 0)) { return bh; } udf_debug("Crc failure block %d: crc = %d, crclen = %d\n", - block + UDF_SB_SESSION(sb), le16_to_cpu(tag_p->descCRC), le16_to_cpu(tag_p->descCRCLength)); + block + UDF_SB_SESSION(sb), le16_to_cpu(tag_p->descCRC), + le16_to_cpu(tag_p->descCRCLength)); -error_out: + error_out: brelse(bh); return NULL; } -struct buffer_head * -udf_read_ptagged(struct super_block *sb, kernel_lb_addr loc, uint32_t offset, uint16_t *ident) +struct buffer_head *udf_read_ptagged(struct super_block *sb, kernel_lb_addr loc, + uint32_t offset, uint16_t * ident) { return udf_read_tagged(sb, udf_get_lb_pblock(sb, loc, offset), - loc.logicalBlockNum + offset, ident); + loc.logicalBlockNum + offset, ident); } void udf_update_tag(char *data, int length) { - tag *tptr = (tag *)data; + tag *tptr = (tag *) data; int i; length -= sizeof(tag); @@ -285,15 +281,15 @@ void udf_update_tag(char *data, int length) tptr->descCRCLength = cpu_to_le16(length); tptr->descCRC = cpu_to_le16(udf_crc(data + sizeof(tag), length, 0)); - for (i=0; i<16; i++) + for (i = 0; i < 16; i++) if (i != 4) - tptr->tagChecksum += (uint8_t)(data[i]); + tptr->tagChecksum += (uint8_t) (data[i]); } void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum, - uint32_t loc, int length) + uint32_t loc, int length) { - tag *tptr = (tag *)data; + tag *tptr = (tag *) data; tptr->tagIdent = cpu_to_le16(ident); tptr->descVersion = cpu_to_le16(version); tptr->tagSerialNum = cpu_to_le16(snum); diff --git a/fs/udf/namei.c b/fs/udf/namei.c index 51fe307dc0ec..334d363a0903 100644 --- a/fs/udf/namei.c +++ b/fs/udf/namei.c @@ -32,7 +32,8 @@ #include <linux/buffer_head.h> #include <linux/sched.h> -static inline int udf_match(int len1, const char *name1, int len2, const char *name2) +static inline int udf_match(int len1, const char *name1, int len2, + const char *name2) { if (len1 != len2) return 0; @@ -40,8 +41,8 @@ static inline int udf_match(int len1, const char *name1, int len2, const char *n } int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi, - struct fileIdentDesc *sfi, struct udf_fileident_bh *fibh, - uint8_t *impuse, uint8_t *fileident) + struct fileIdentDesc *sfi, struct udf_fileident_bh *fibh, + uint8_t * impuse, uint8_t * fileident) { uint16_t crclen = fibh->eoffset - fibh->soffset - sizeof(tag); uint16_t crc; @@ -51,7 +52,7 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi, uint16_t liu = le16_to_cpu(cfi->lengthOfImpUse); uint8_t lfi = cfi->lengthFileIdent; int padlen = fibh->eoffset - fibh->soffset - liu - lfi - - sizeof(struct fileIdentDesc); + sizeof(struct fileIdentDesc); int adinicb = 0; if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) @@ -59,83 +60,86 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi, offset = fibh->soffset + sizeof(struct fileIdentDesc); - if (impuse) - { + if (impuse) { if (adinicb || (offset + liu < 0)) - memcpy((uint8_t *)sfi->impUse, impuse, liu); + memcpy((uint8_t *) sfi->impUse, impuse, liu); else if (offset >= 0) memcpy(fibh->ebh->b_data + offset, impuse, liu); - else - { - memcpy((uint8_t *)sfi->impUse, impuse, -offset); - memcpy(fibh->ebh->b_data, impuse - offset, liu + offset); + else { + memcpy((uint8_t *) sfi->impUse, impuse, -offset); + memcpy(fibh->ebh->b_data, impuse - offset, + liu + offset); } } offset += liu; - if (fileident) - { + if (fileident) { if (adinicb || (offset + lfi < 0)) - memcpy((uint8_t *)sfi->fileIdent + liu, fileident, lfi); + memcpy((uint8_t *) sfi->fileIdent + liu, fileident, + lfi); else if (offset >= 0) memcpy(fibh->ebh->b_data + offset, fileident, lfi); - else - { - memcpy((uint8_t *)sfi->fileIdent + liu, fileident, -offset); - memcpy(fibh->ebh->b_data, fileident - offset, lfi + offset); + else { + memcpy((uint8_t *) sfi->fileIdent + liu, fileident, + -offset); + memcpy(fibh->ebh->b_data, fileident - offset, + lfi + offset); } } offset += lfi; if (adinicb || (offset + padlen < 0)) - memset((uint8_t *)sfi->padding + liu + lfi, 0x00, padlen); + memset((uint8_t *) sfi->padding + liu + lfi, 0x00, padlen); else if (offset >= 0) memset(fibh->ebh->b_data + offset, 0x00, padlen); - else - { - memset((uint8_t *)sfi->padding + liu + lfi, 0x00, -offset); + else { + memset((uint8_t *) sfi->padding + liu + lfi, 0x00, -offset); memset(fibh->ebh->b_data, 0x00, padlen + offset); } - crc = udf_crc((uint8_t *)cfi + sizeof(tag), sizeof(struct fileIdentDesc) - - sizeof(tag), 0); + crc = + udf_crc((uint8_t *) cfi + sizeof(tag), + sizeof(struct fileIdentDesc) - sizeof(tag), 0); if (fibh->sbh == fibh->ebh) - crc = udf_crc((uint8_t *)sfi->impUse, - crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc); + crc = udf_crc((uint8_t *) sfi->impUse, + crclen + sizeof(tag) - + sizeof(struct fileIdentDesc), crc); else if (sizeof(struct fileIdentDesc) >= -fibh->soffset) - crc = udf_crc(fibh->ebh->b_data + sizeof(struct fileIdentDesc) + fibh->soffset, - crclen + sizeof(tag) - sizeof(struct fileIdentDesc), crc); - else - { - crc = udf_crc((uint8_t *)sfi->impUse, - -fibh->soffset - sizeof(struct fileIdentDesc), crc); + crc = + udf_crc(fibh->ebh->b_data + sizeof(struct fileIdentDesc) + + fibh->soffset, + crclen + sizeof(tag) - sizeof(struct fileIdentDesc), + crc); + else { + crc = udf_crc((uint8_t *) sfi->impUse, + -fibh->soffset - sizeof(struct fileIdentDesc), + crc); crc = udf_crc(fibh->ebh->b_data, fibh->eoffset, crc); } cfi->descTag.descCRC = cpu_to_le16(crc); cfi->descTag.descCRCLength = cpu_to_le16(crclen); - for (i=0; i<16; i++) + for (i = 0; i < 16; i++) if (i != 4) - checksum += ((uint8_t *)&cfi->descTag)[i]; + checksum += ((uint8_t *) & cfi->descTag)[i]; cfi->descTag.tagChecksum = checksum; if (adinicb || (sizeof(struct fileIdentDesc) <= -fibh->soffset)) - memcpy((uint8_t *)sfi, (uint8_t *)cfi, sizeof(struct fileIdentDesc)); - else - { - memcpy((uint8_t *)sfi, (uint8_t *)cfi, -fibh->soffset); - memcpy(fibh->ebh->b_data, (uint8_t *)cfi - fibh->soffset, - sizeof(struct fileIdentDesc) + fibh->soffset); + memcpy((uint8_t *) sfi, (uint8_t *) cfi, + sizeof(struct fileIdentDesc)); + else { + memcpy((uint8_t *) sfi, (uint8_t *) cfi, -fibh->soffset); + memcpy(fibh->ebh->b_data, (uint8_t *) cfi - fibh->soffset, + sizeof(struct fileIdentDesc) + fibh->soffset); } if (adinicb) mark_inode_dirty(inode); - else - { + else { if (fibh->sbh != fibh->ebh) mark_buffer_dirty_inode(fibh->ebh, inode); mark_buffer_dirty_inode(fibh->sbh, inode); @@ -143,12 +147,12 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi, return 0; } -static struct fileIdentDesc * -udf_find_entry(struct inode *dir, struct dentry *dentry, - struct udf_fileident_bh *fibh, - struct fileIdentDesc *cfi) +static struct fileIdentDesc *udf_find_entry(struct inode *dir, + struct dentry *dentry, + struct udf_fileident_bh *fibh, + struct fileIdentDesc *cfi) { - struct fileIdentDesc *fi=NULL; + struct fileIdentDesc *fi = NULL; loff_t f_pos; int block, flen; char fname[UDF_NAME_LEN]; @@ -159,46 +163,41 @@ udf_find_entry(struct inode *dir, struct dentry *dentry, kernel_lb_addr eloc; uint32_t elen; sector_t offset; - struct extent_position epos = { NULL, 0, { 0, 0}}; + struct extent_position epos = { NULL, 0, {0, 0} }; size = (udf_ext0_offset(dir) + dir->i_size) >> 2; f_pos = (udf_ext0_offset(dir) >> 2); - fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; + fibh->soffset = fibh->eoffset = + (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) fibh->sbh = fibh->ebh = NULL; else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), - &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) - { + &epos, &eloc, &elen, + &offset) == (EXT_RECORDED_ALLOCATED >> 30)) { block = udf_get_lb_pblock(dir->i_sb, eloc, offset); - if ((++offset << dir->i_sb->s_blocksize_bits) < elen) - { + if ((++offset << dir->i_sb->s_blocksize_bits) < elen) { if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT) epos.offset -= sizeof(short_ad); else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG) epos.offset -= sizeof(long_ad); - } - else + } else offset = 0; - if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) - { + if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) { brelse(epos.bh); return NULL; } - } - else - { + } else { brelse(epos.bh); return NULL; } - while ( (f_pos < size) ) - { - fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc, &elen, &offset); + while ((f_pos < size)) { + fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc, + &elen, &offset); - if (!fi) - { + if (!fi) { if (fibh->sbh != fibh->ebh) brelse(fibh->ebh); brelse(fibh->sbh); @@ -209,45 +208,45 @@ udf_find_entry(struct inode *dir, struct dentry *dentry, liu = le16_to_cpu(cfi->lengthOfImpUse); lfi = cfi->lengthFileIdent; - if (fibh->sbh == fibh->ebh) - { + if (fibh->sbh == fibh->ebh) { nameptr = fi->fileIdent + liu; - } - else - { + } else { int poffset; /* Unpaded ending offset */ - poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi; + poffset = + fibh->soffset + sizeof(struct fileIdentDesc) + liu + + lfi; if (poffset >= lfi) - nameptr = (uint8_t *)(fibh->ebh->b_data + poffset - lfi); - else - { + nameptr = + (uint8_t *) (fibh->ebh->b_data + poffset - + lfi); + else { nameptr = fname; - memcpy(nameptr, fi->fileIdent + liu, lfi - poffset); - memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset); + memcpy(nameptr, fi->fileIdent + liu, + lfi - poffset); + memcpy(nameptr + lfi - poffset, + fibh->ebh->b_data, poffset); } } - if ( (cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0 ) - { - if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE) ) + if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) { + if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE)) continue; } - - if ( (cfi->fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0 ) - { - if ( !UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE) ) + + if ((cfi->fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0) { + if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE)) continue; } if (!lfi) continue; - if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi))) - { - if (udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) - { + if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi))) { + if (udf_match + (flen, fname, dentry->d_name.len, + dentry->d_name.name)) { brelse(epos.bh); return fi; } @@ -293,41 +292,37 @@ udf_find_entry(struct inode *dir, struct dentry *dentry, * Written, tested, and released. */ -static struct dentry * -udf_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) +static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry, + struct nameidata *nd) { struct inode *inode = NULL; struct fileIdentDesc cfi; struct udf_fileident_bh fibh; - if (dentry->d_name.len > UDF_NAME_LEN-2) + if (dentry->d_name.len > UDF_NAME_LEN - 2) return ERR_PTR(-ENAMETOOLONG); lock_kernel(); #ifdef UDF_RECOVERY /* temporary shorthand for specifying files by inode number */ - if (!strncmp(dentry->d_name.name, ".B=", 3) ) - { - kernel_lb_addr lb = { 0, simple_strtoul(dentry->d_name.name+3, NULL, 0) }; + if (!strncmp(dentry->d_name.name, ".B=", 3)) { + kernel_lb_addr lb = + { 0, simple_strtoul(dentry->d_name.name + 3, NULL, 0) }; inode = udf_iget(dir->i_sb, lb); - if (!inode) - { + if (!inode) { unlock_kernel(); return ERR_PTR(-EACCES); } - } - else -#endif /* UDF_RECOVERY */ + } else +#endif /* UDF_RECOVERY */ - if (udf_find_entry(dir, dentry, &fibh, &cfi)) - { + if (udf_find_entry(dir, dentry, &fibh, &cfi)) { if (fibh.sbh != fibh.ebh) brelse(fibh.ebh); brelse(fibh.sbh); inode = udf_iget(dir->i_sb, lelb_to_cpu(cfi.icb.extLocation)); - if ( !inode ) - { + if (!inode) { unlock_kernel(); return ERR_PTR(-EACCES); } @@ -337,13 +332,13 @@ udf_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) return NULL; } -static struct fileIdentDesc * -udf_add_entry(struct inode *dir, struct dentry *dentry, - struct udf_fileident_bh *fibh, - struct fileIdentDesc *cfi, int *err) +static struct fileIdentDesc *udf_add_entry(struct inode *dir, + struct dentry *dentry, + struct udf_fileident_bh *fibh, + struct fileIdentDesc *cfi, int *err) { struct super_block *sb; - struct fileIdentDesc *fi=NULL; + struct fileIdentDesc *fi = NULL; char name[UDF_NAME_LEN], fname[UDF_NAME_LEN]; int namelen; loff_t f_pos; @@ -357,50 +352,47 @@ udf_add_entry(struct inode *dir, struct dentry *dentry, kernel_lb_addr eloc; uint32_t elen; sector_t offset; - struct extent_position epos = { NULL, 0, { 0, 0 }}; + struct extent_position epos = { NULL, 0, {0, 0} }; sb = dir->i_sb; - if (dentry) - { - if (!dentry->d_name.len) - { + if (dentry) { + if (!dentry->d_name.len) { *err = -EINVAL; return NULL; } - if ( !(namelen = udf_put_filename(sb, dentry->d_name.name, name, dentry->d_name.len))) - { + if (! + (namelen = + udf_put_filename(sb, dentry->d_name.name, name, + dentry->d_name.len))) { *err = -ENAMETOOLONG; return NULL; } - } - else + } else namelen = 0; nfidlen = (sizeof(struct fileIdentDesc) + namelen + 3) & ~3; f_pos = (udf_ext0_offset(dir) >> 2); - fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; + fibh->soffset = fibh->eoffset = + (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) fibh->sbh = fibh->ebh = NULL; else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), - &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) - { + &epos, &eloc, &elen, + &offset) == (EXT_RECORDED_ALLOCATED >> 30)) { block = udf_get_lb_pblock(dir->i_sb, eloc, offset); - if ((++offset << dir->i_sb->s_blocksize_bits) < elen) - { + if ((++offset << dir->i_sb->s_blocksize_bits) < elen) { if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT) epos.offset -= sizeof(short_ad); else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG) epos.offset -= sizeof(long_ad); - } - else + } else offset = 0; - if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) - { + if (!(fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block))) { brelse(epos.bh); *err = -EIO; return NULL; @@ -408,21 +400,18 @@ udf_add_entry(struct inode *dir, struct dentry *dentry, block = UDF_I_LOCATION(dir).logicalBlockNum; - } - else - { + } else { block = udf_get_lb_pblock(dir->i_sb, UDF_I_LOCATION(dir), 0); fibh->sbh = fibh->ebh = NULL; fibh->soffset = fibh->eoffset = sb->s_blocksize; goto add; } - while ( (f_pos < size) ) - { - fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc, &elen, &offset); + while ((f_pos < size)) { + fi = udf_fileident_read(dir, &f_pos, fibh, cfi, &epos, &eloc, + &elen, &offset); - if (!fi) - { + if (!fi) { if (fibh->sbh != fibh->ebh) brelse(fibh->ebh); brelse(fibh->sbh); @@ -436,36 +425,38 @@ udf_add_entry(struct inode *dir, struct dentry *dentry, if (fibh->sbh == fibh->ebh) nameptr = fi->fileIdent + liu; - else - { + else { int poffset; /* Unpaded ending offset */ - poffset = fibh->soffset + sizeof(struct fileIdentDesc) + liu + lfi; + poffset = + fibh->soffset + sizeof(struct fileIdentDesc) + liu + + lfi; if (poffset >= lfi) - nameptr = (char *)(fibh->ebh->b_data + poffset - lfi); - else - { + nameptr = + (char *)(fibh->ebh->b_data + poffset - lfi); + else { nameptr = fname; - memcpy(nameptr, fi->fileIdent + liu, lfi - poffset); - memcpy(nameptr + lfi - poffset, fibh->ebh->b_data, poffset); + memcpy(nameptr, fi->fileIdent + liu, + lfi - poffset); + memcpy(nameptr + lfi - poffset, + fibh->ebh->b_data, poffset); } } - if ( (cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0 ) - { - if (((sizeof(struct fileIdentDesc) + liu + lfi + 3) & ~3) == nfidlen) - { + if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) { + if (((sizeof(struct fileIdentDesc) + liu + lfi + + 3) & ~3) == nfidlen) { brelse(epos.bh); cfi->descTag.tagSerialNum = cpu_to_le16(1); cfi->fileVersionNum = cpu_to_le16(1); cfi->fileCharacteristics = 0; cfi->lengthFileIdent = namelen; cfi->lengthOfImpUse = cpu_to_le16(0); - if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) + if (!udf_write_fi + (dir, cfi, fi, fibh, NULL, name)) return fi; - else - { + else { *err = -EIO; return NULL; } @@ -476,8 +467,8 @@ udf_add_entry(struct inode *dir, struct dentry *dentry, continue; if ((flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi)) && - udf_match(flen, fname, dentry->d_name.len, dentry->d_name.name)) - { + udf_match(flen, fname, dentry->d_name.len, + dentry->d_name.name)) { if (fibh->sbh != fibh->ebh) brelse(fibh->ebh); brelse(fibh->sbh); @@ -487,12 +478,11 @@ udf_add_entry(struct inode *dir, struct dentry *dentry, } } -add: + add: f_pos += nfidlen; if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB && - sb->s_blocksize - fibh->eoffset < nfidlen) - { + sb->s_blocksize - fibh->eoffset < nfidlen) { brelse(epos.bh); epos.bh = NULL; fibh->soffset -= udf_ext0_offset(dir); @@ -501,11 +491,14 @@ add: if (fibh->sbh != fibh->ebh) brelse(fibh->ebh); brelse(fibh->sbh); - if (!(fibh->sbh = fibh->ebh = udf_expand_dir_adinicb(dir, &block, err))) + if (! + (fibh->sbh = fibh->ebh = + udf_expand_dir_adinicb(dir, &block, err))) return NULL; epos.block = UDF_I_LOCATION(dir); eloc.logicalBlockNum = block; - eloc.partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum; + eloc.partitionReferenceNum = + UDF_I_LOCATION(dir).partitionReferenceNum; elen = dir->i_sb->s_blocksize; epos.offset = udf_file_entry_alloc_offset(dir); if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT) @@ -514,89 +507,84 @@ add: epos.offset += sizeof(long_ad); } - if (sb->s_blocksize - fibh->eoffset >= nfidlen) - { + if (sb->s_blocksize - fibh->eoffset >= nfidlen) { fibh->soffset = fibh->eoffset; fibh->eoffset += nfidlen; - if (fibh->sbh != fibh->ebh) - { + if (fibh->sbh != fibh->ebh) { brelse(fibh->sbh); fibh->sbh = fibh->ebh; } - if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) { block = UDF_I_LOCATION(dir).logicalBlockNum; - fi = (struct fileIdentDesc *)(UDF_I_DATA(dir) + fibh->soffset - udf_ext0_offset(dir) + UDF_I_LENEATTR(dir)); - } - else - { + fi = (struct fileIdentDesc *)(UDF_I_DATA(dir) + + fibh->soffset - + udf_ext0_offset(dir) + + UDF_I_LENEATTR(dir)); + } else { block = eloc.logicalBlockNum + ((elen - 1) >> - dir->i_sb->s_blocksize_bits); - fi = (struct fileIdentDesc *)(fibh->sbh->b_data + fibh->soffset); + dir->i_sb-> + s_blocksize_bits); + fi = (struct fileIdentDesc *)(fibh->sbh->b_data + + fibh->soffset); } - } - else - { + } else { fibh->soffset = fibh->eoffset - sb->s_blocksize; fibh->eoffset += nfidlen - sb->s_blocksize; - if (fibh->sbh != fibh->ebh) - { + if (fibh->sbh != fibh->ebh) { brelse(fibh->sbh); fibh->sbh = fibh->ebh; } block = eloc.logicalBlockNum + ((elen - 1) >> - dir->i_sb->s_blocksize_bits); + dir->i_sb->s_blocksize_bits); - if (!(fibh->ebh = udf_bread(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), 1, err))) - { + if (! + (fibh->ebh = + udf_bread(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), + 1, err))) { brelse(epos.bh); brelse(fibh->sbh); return NULL; } - if (!(fibh->soffset)) - { + if (!(fibh->soffset)) { if (udf_next_aext(dir, &epos, &eloc, &elen, 1) == - (EXT_RECORDED_ALLOCATED >> 30)) - { + (EXT_RECORDED_ALLOCATED >> 30)) { block = eloc.logicalBlockNum + ((elen - 1) >> - dir->i_sb->s_blocksize_bits); - } - else - block ++; + dir->i_sb-> + s_blocksize_bits); + } else + block++; brelse(fibh->sbh); fibh->sbh = fibh->ebh; fi = (struct fileIdentDesc *)(fibh->sbh->b_data); - } - else - { + } else { fi = (struct fileIdentDesc *) - (fibh->sbh->b_data + sb->s_blocksize + fibh->soffset); + (fibh->sbh->b_data + sb->s_blocksize + + fibh->soffset); } } memset(cfi, 0, sizeof(struct fileIdentDesc)); if (UDF_SB_UDFREV(sb) >= 0x0200) - udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block, sizeof(tag)); + udf_new_tag((char *)cfi, TAG_IDENT_FID, 3, 1, block, + sizeof(tag)); else - udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block, sizeof(tag)); + udf_new_tag((char *)cfi, TAG_IDENT_FID, 2, 1, block, + sizeof(tag)); cfi->fileVersionNum = cpu_to_le16(1); cfi->lengthFileIdent = namelen; cfi->lengthOfImpUse = cpu_to_le16(0); - if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) - { + if (!udf_write_fi(dir, cfi, fi, fibh, NULL, name)) { brelse(epos.bh); dir->i_size += nfidlen; if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) UDF_I_LENALLOC(dir) += nfidlen; mark_inode_dirty(dir); return fi; - } - else - { + } else { brelse(epos.bh); if (fibh->sbh != fibh->ebh) brelse(fibh->ebh); @@ -607,7 +595,8 @@ add: } static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi, - struct udf_fileident_bh *fibh, struct fileIdentDesc *cfi) + struct udf_fileident_bh *fibh, + struct fileIdentDesc *cfi) { cfi->fileCharacteristics |= FID_FILE_CHAR_DELETED; if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT)) @@ -615,7 +604,8 @@ static int udf_delete_entry(struct inode *inode, struct fileIdentDesc *fi, return udf_write_fi(inode, cfi, fi, fibh, NULL, NULL); } -static int udf_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd) +static int udf_create(struct inode *dir, struct dentry *dentry, int mode, + struct nameidata *nd) { struct udf_fileident_bh fibh; struct inode *inode; @@ -624,8 +614,7 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode, struct lock_kernel(); inode = udf_new_inode(dir, mode, &err); - if (!inode) - { + if (!inode) { unlock_kernel(); return err; } @@ -639,9 +628,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode, struct inode->i_mode = mode; mark_inode_dirty(inode); - if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) - { - inode->i_nlink --; + if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) { + inode->i_nlink--; mark_inode_dirty(inode); iput(inode); unlock_kernel(); @@ -649,11 +637,10 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode, struct } cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize); cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode)); - *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse = - cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL); + *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse = + cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL); udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL); - if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) { mark_inode_dirty(dir); } if (fibh.sbh != fibh.ebh) @@ -664,9 +651,10 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode, struct return 0; } -static int udf_mknod(struct inode * dir, struct dentry * dentry, int mode, dev_t rdev) +static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode, + dev_t rdev) { - struct inode * inode; + struct inode *inode; struct udf_fileident_bh fibh; struct fileIdentDesc cfi, *fi; int err; @@ -682,9 +670,8 @@ static int udf_mknod(struct inode * dir, struct dentry * dentry, int mode, dev_t inode->i_uid = current->fsuid; init_special_inode(inode, mode, rdev); - if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) - { - inode->i_nlink --; + if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) { + inode->i_nlink--; mark_inode_dirty(inode); iput(inode); unlock_kernel(); @@ -692,11 +679,10 @@ static int udf_mknod(struct inode * dir, struct dentry * dentry, int mode, dev_t } cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize); cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode)); - *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse = - cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL); + *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse = + cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL); udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL); - if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) { mark_inode_dirty(dir); } mark_inode_dirty(inode); @@ -706,21 +692,21 @@ static int udf_mknod(struct inode * dir, struct dentry * dentry, int mode, dev_t brelse(fibh.sbh); d_instantiate(dentry, inode); err = 0; -out: + out: unlock_kernel(); return err; } -static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode) +static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode) { - struct inode * inode; + struct inode *inode; struct udf_fileident_bh fibh; struct fileIdentDesc cfi, *fi; int err; lock_kernel(); err = -EMLINK; - if (dir->i_nlink >= (256<<sizeof(dir->i_nlink))-1) + if (dir->i_nlink >= (256 << sizeof(dir->i_nlink)) - 1) goto out; err = -EIO; @@ -730,8 +716,7 @@ static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode) inode->i_op = &udf_dir_inode_operations; inode->i_fop = &udf_dir_operations; - if (!(fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err))) - { + if (!(fi = udf_add_entry(inode, NULL, &fibh, &cfi, &err))) { inode->i_nlink--; mark_inode_dirty(inode); iput(inode); @@ -740,9 +725,10 @@ static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode) inode->i_nlink = 2; cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize); cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(dir)); - *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse = - cpu_to_le32(UDF_I_UNIQUE(dir) & 0x00000000FFFFFFFFUL); - cfi.fileCharacteristics = FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT; + *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse = + cpu_to_le32(UDF_I_UNIQUE(dir) & 0x00000000FFFFFFFFUL); + cfi.fileCharacteristics = + FID_FILE_CHAR_DIRECTORY | FID_FILE_CHAR_PARENT; udf_write_fi(inode, &cfi, fi, &fibh, NULL, NULL); brelse(fibh.sbh); inode->i_mode = S_IFDIR | mode; @@ -750,8 +736,7 @@ static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode) inode->i_mode |= S_ISGID; mark_inode_dirty(inode); - if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) - { + if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) { inode->i_nlink = 0; mark_inode_dirty(inode); iput(inode); @@ -759,8 +744,8 @@ static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode) } cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize); cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode)); - *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse = - cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL); + *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse = + cpu_to_le32(UDF_I_UNIQUE(inode) & 0x00000000FFFFFFFFUL); cfi.fileCharacteristics |= FID_FILE_CHAR_DIRECTORY; udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL); inc_nlink(dir); @@ -770,7 +755,7 @@ static int udf_mkdir(struct inode * dir, struct dentry * dentry, int mode) brelse(fibh.ebh); brelse(fibh.sbh); err = 0; -out: + out: unlock_kernel(); return err; } @@ -785,47 +770,41 @@ static int empty_dir(struct inode *dir) kernel_lb_addr eloc; uint32_t elen; sector_t offset; - struct extent_position epos = { NULL, 0, { 0, 0}}; + struct extent_position epos = { NULL, 0, {0, 0} }; f_pos = (udf_ext0_offset(dir) >> 2); - fibh.soffset = fibh.eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; + fibh.soffset = fibh.eoffset = + (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2; if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) fibh.sbh = fibh.ebh = NULL; else if (inode_bmap(dir, f_pos >> (dir->i_sb->s_blocksize_bits - 2), - &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) - { + &epos, &eloc, &elen, + &offset) == (EXT_RECORDED_ALLOCATED >> 30)) { block = udf_get_lb_pblock(dir->i_sb, eloc, offset); - if ((++offset << dir->i_sb->s_blocksize_bits) < elen) - { + if ((++offset << dir->i_sb->s_blocksize_bits) < elen) { if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_SHORT) epos.offset -= sizeof(short_ad); else if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_LONG) epos.offset -= sizeof(long_ad); - } - else + } else offset = 0; - if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) - { + if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) { brelse(epos.bh); return 0; } - } - else - { + } else { brelse(epos.bh); return 0; } + while ((f_pos < size)) { + fi = udf_fileident_read(dir, &f_pos, &fibh, &cfi, &epos, &eloc, + &elen, &offset); - while ( (f_pos < size) ) - { - fi = udf_fileident_read(dir, &f_pos, &fibh, &cfi, &epos, &eloc, &elen, &offset); - - if (!fi) - { + if (!fi) { if (fibh.sbh != fibh.ebh) brelse(fibh.ebh); brelse(fibh.sbh); @@ -833,8 +812,8 @@ static int empty_dir(struct inode *dir) return 0; } - if (cfi.lengthFileIdent && (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) == 0) - { + if (cfi.lengthFileIdent + && (cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) == 0) { if (fibh.sbh != fibh.ebh) brelse(fibh.ebh); brelse(fibh.sbh); @@ -849,10 +828,10 @@ static int empty_dir(struct inode *dir) return 1; } -static int udf_rmdir(struct inode * dir, struct dentry * dentry) +static int udf_rmdir(struct inode *dir, struct dentry *dentry) { int retval; - struct inode * inode = dentry->d_inode; + struct inode *inode = dentry->d_inode; struct udf_fileident_bh fibh; struct fileIdentDesc *fi, cfi; kernel_lb_addr tloc; @@ -875,27 +854,28 @@ static int udf_rmdir(struct inode * dir, struct dentry * dentry) goto end_rmdir; if (inode->i_nlink != 2) udf_warning(inode->i_sb, "udf_rmdir", - "empty directory has nlink != 2 (%d)", - inode->i_nlink); + "empty directory has nlink != 2 (%d)", + inode->i_nlink); clear_nlink(inode); inode->i_size = 0; inode_dec_link_count(dir); - inode->i_ctime = dir->i_ctime = dir->i_mtime = current_fs_time(dir->i_sb); + inode->i_ctime = dir->i_ctime = dir->i_mtime = + current_fs_time(dir->i_sb); mark_inode_dirty(dir); -end_rmdir: + end_rmdir: if (fibh.sbh != fibh.ebh) brelse(fibh.ebh); brelse(fibh.sbh); -out: + out: unlock_kernel(); return retval; } -static int udf_unlink(struct inode * dir, struct dentry * dentry) +static int udf_unlink(struct inode *dir, struct dentry *dentry) { int retval; - struct inode * inode = dentry->d_inode; + struct inode *inode = dentry->d_inode; struct udf_fileident_bh fibh; struct fileIdentDesc *fi; struct fileIdentDesc cfi; @@ -912,10 +892,9 @@ static int udf_unlink(struct inode * dir, struct dentry * dentry) if (udf_get_lb_pblock(dir->i_sb, tloc, 0) != inode->i_ino) goto end_unlink; - if (!inode->i_nlink) - { + if (!inode->i_nlink) { udf_debug("Deleting nonexistent file (%lu), %d\n", - inode->i_ino, inode->i_nlink); + inode->i_ino, inode->i_nlink); inode->i_nlink = 1; } retval = udf_delete_entry(dir, fi, &fibh, &cfi); @@ -927,22 +906,23 @@ static int udf_unlink(struct inode * dir, struct dentry * dentry) inode->i_ctime = dir->i_ctime; retval = 0; -end_unlink: + end_unlink: if (fibh.sbh != fibh.ebh) brelse(fibh.ebh); brelse(fibh.sbh); -out: + out: unlock_kernel(); return retval; } -static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * symname) +static int udf_symlink(struct inode *dir, struct dentry *dentry, + const char *symname) { - struct inode * inode; + struct inode *inode; struct pathComponent *pc; char *compstart; struct udf_fileident_bh fibh; - struct extent_position epos = { NULL, 0, {0, 0}}; + struct extent_position epos = { NULL, 0, {0, 0} }; int eoffset, elen = 0; struct fileIdentDesc *fi; struct fileIdentDesc cfi; @@ -960,28 +940,31 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * inode->i_data.a_ops = &udf_symlink_aops; inode->i_op = &page_symlink_inode_operations; - if (UDF_I_ALLOCTYPE(inode) != ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(inode) != ICBTAG_FLAG_AD_IN_ICB) { kernel_lb_addr eloc; uint32_t elen; block = udf_new_block(inode->i_sb, inode, - UDF_I_LOCATION(inode).partitionReferenceNum, - UDF_I_LOCATION(inode).logicalBlockNum, &err); + UDF_I_LOCATION(inode). + partitionReferenceNum, + UDF_I_LOCATION(inode).logicalBlockNum, + &err); if (!block) goto out_no_entry; epos.block = UDF_I_LOCATION(inode); epos.offset = udf_file_entry_alloc_offset(inode); epos.bh = NULL; eloc.logicalBlockNum = block; - eloc.partitionReferenceNum = UDF_I_LOCATION(inode).partitionReferenceNum; + eloc.partitionReferenceNum = + UDF_I_LOCATION(inode).partitionReferenceNum; elen = inode->i_sb->s_blocksize; UDF_I_LENEXTENTS(inode) = elen; udf_add_aext(inode, &epos, eloc, elen, 0); brelse(epos.bh); block = udf_get_pblock(inode->i_sb, block, - UDF_I_LOCATION(inode).partitionReferenceNum, 0); + UDF_I_LOCATION(inode). + partitionReferenceNum, 0); epos.bh = udf_tread(inode->i_sb, block); lock_buffer(epos.bh); memset(epos.bh->b_data, 0x00, inode->i_sb->s_blocksize); @@ -989,17 +972,14 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * unlock_buffer(epos.bh); mark_buffer_dirty_inode(epos.bh, inode); ea = epos.bh->b_data + udf_ext0_offset(inode); - } - else + } else ea = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode); eoffset = inode->i_sb->s_blocksize - udf_ext0_offset(inode); pc = (struct pathComponent *)ea; - if (*symname == '/') - { - do - { + if (*symname == '/') { + do { symname++; } while (*symname == '/'); @@ -1012,8 +992,7 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * err = -ENAMETOOLONG; - while (*symname) - { + while (*symname) { if (elen + sizeof(struct pathComponent) > eoffset) goto out_no_entry; @@ -1021,28 +1000,30 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * compstart = (char *)symname; - do - { + do { symname++; } while (*symname && *symname != '/'); pc->componentType = 5; pc->lengthComponentIdent = 0; pc->componentFileVersionNum = 0; - if (compstart[0] == '.') - { - if ((symname-compstart) == 1) + if (compstart[0] == '.') { + if ((symname - compstart) == 1) pc->componentType = 4; - else if ((symname-compstart) == 2 && compstart[1] == '.') + else if ((symname - compstart) == 2 + && compstart[1] == '.') pc->componentType = 3; } - if (pc->componentType == 5) - { - if ( !(namelen = udf_put_filename(inode->i_sb, compstart, name, symname-compstart))) + if (pc->componentType == 5) { + if (! + (namelen = + udf_put_filename(inode->i_sb, compstart, name, + symname - compstart))) goto out_no_entry; - if (elen + sizeof(struct pathComponent) + namelen > eoffset) + if (elen + sizeof(struct pathComponent) + namelen > + eoffset) goto out_no_entry; else pc->lengthComponentIdent = namelen; @@ -1052,10 +1033,8 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * elen += sizeof(struct pathComponent) + pc->lengthComponentIdent; - if (*symname) - { - do - { + if (*symname) { + do { symname++; } while (*symname == '/'); } @@ -1071,22 +1050,22 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * goto out_no_entry; cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize); cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode)); - if (UDF_SB_LVIDBH(inode->i_sb)) - { + if (UDF_SB_LVIDBH(inode->i_sb)) { struct logicalVolHeaderDesc *lvhd; uint64_t uniqueID; - lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse); + lvhd = + (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)-> + logicalVolContentsUse); uniqueID = le64_to_cpu(lvhd->uniqueID); - *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse = - cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL); + *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse = + cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL); if (!(++uniqueID & 0x00000000FFFFFFFFUL)) uniqueID += 16; lvhd->uniqueID = cpu_to_le64(uniqueID); mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb)); } udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL); - if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) { mark_inode_dirty(dir); } if (fibh.sbh != fibh.ebh) @@ -1095,18 +1074,18 @@ static int udf_symlink(struct inode * dir, struct dentry * dentry, const char * d_instantiate(dentry, inode); err = 0; -out: + out: unlock_kernel(); return err; -out_no_entry: + out_no_entry: inode_dec_link_count(inode); iput(inode); goto out; } -static int udf_link(struct dentry * old_dentry, struct inode * dir, - struct dentry *dentry) +static int udf_link(struct dentry *old_dentry, struct inode *dir, + struct dentry *dentry) { struct inode *inode = old_dentry->d_inode; struct udf_fileident_bh fibh; @@ -1114,35 +1093,33 @@ static int udf_link(struct dentry * old_dentry, struct inode * dir, int err; lock_kernel(); - if (inode->i_nlink >= (256<<sizeof(inode->i_nlink))-1) - { + if (inode->i_nlink >= (256 << sizeof(inode->i_nlink)) - 1) { unlock_kernel(); return -EMLINK; } - if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) - { + if (!(fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err))) { unlock_kernel(); return err; } cfi.icb.extLength = cpu_to_le32(inode->i_sb->s_blocksize); cfi.icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(inode)); - if (UDF_SB_LVIDBH(inode->i_sb)) - { + if (UDF_SB_LVIDBH(inode->i_sb)) { struct logicalVolHeaderDesc *lvhd; uint64_t uniqueID; - lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)->logicalVolContentsUse); + lvhd = + (struct logicalVolHeaderDesc *)(UDF_SB_LVID(inode->i_sb)-> + logicalVolContentsUse); uniqueID = le64_to_cpu(lvhd->uniqueID); - *(__le32 *)((struct allocDescImpUse *)cfi.icb.impUse)->impUse = - cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL); + *(__le32 *) ((struct allocDescImpUse *)cfi.icb.impUse)->impUse = + cpu_to_le32(uniqueID & 0x00000000FFFFFFFFUL); if (!(++uniqueID & 0x00000000FFFFFFFFUL)) uniqueID += 16; lvhd->uniqueID = cpu_to_le64(uniqueID); mark_buffer_dirty(UDF_SB_LVIDBH(inode->i_sb)); } udf_write_fi(dir, &cfi, fi, &fibh, NULL, NULL); - if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(dir) == ICBTAG_FLAG_AD_IN_ICB) { mark_inode_dirty(dir); } if (fibh.sbh != fibh.ebh) @@ -1160,80 +1137,80 @@ static int udf_link(struct dentry * old_dentry, struct inode * dir, /* Anybody can rename anything with this: the permission checks are left to the * higher-level routines. */ -static int udf_rename (struct inode * old_dir, struct dentry * old_dentry, - struct inode * new_dir, struct dentry * new_dentry) +static int udf_rename(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry) { - struct inode * old_inode = old_dentry->d_inode; - struct inode * new_inode = new_dentry->d_inode; + struct inode *old_inode = old_dentry->d_inode; + struct inode *new_inode = new_dentry->d_inode; struct udf_fileident_bh ofibh, nfibh; - struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = NULL, ocfi, ncfi; + struct fileIdentDesc *ofi = NULL, *nfi = NULL, *dir_fi = + NULL, ocfi, ncfi; struct buffer_head *dir_bh = NULL; int retval = -ENOENT; kernel_lb_addr tloc; lock_kernel(); - if ((ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi))) - { + if ((ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi))) { if (ofibh.sbh != ofibh.ebh) brelse(ofibh.ebh); brelse(ofibh.sbh); } tloc = lelb_to_cpu(ocfi.icb.extLocation); if (!ofi || udf_get_lb_pblock(old_dir->i_sb, tloc, 0) - != old_inode->i_ino) + != old_inode->i_ino) goto end_rename; nfi = udf_find_entry(new_dir, new_dentry, &nfibh, &ncfi); - if (nfi) - { - if (!new_inode) - { + if (nfi) { + if (!new_inode) { if (nfibh.sbh != nfibh.ebh) brelse(nfibh.ebh); brelse(nfibh.sbh); nfi = NULL; } } - if (S_ISDIR(old_inode->i_mode)) - { + if (S_ISDIR(old_inode->i_mode)) { uint32_t offset = udf_ext0_offset(old_inode); - if (new_inode) - { + if (new_inode) { retval = -ENOTEMPTY; if (!empty_dir(new_inode)) goto end_rename; } retval = -EIO; - if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) - { + if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) { dir_fi = udf_get_fileident(UDF_I_DATA(old_inode) - - (UDF_I_EFE(old_inode) ? - sizeof(struct extendedFileEntry) : - sizeof(struct fileEntry)), - old_inode->i_sb->s_blocksize, &offset); - } - else - { + (UDF_I_EFE(old_inode) ? + sizeof(struct + extendedFileEntry) : + sizeof(struct fileEntry)), + old_inode->i_sb->s_blocksize, + &offset); + } else { dir_bh = udf_bread(old_inode, 0, 0, &retval); if (!dir_bh) goto end_rename; - dir_fi = udf_get_fileident(dir_bh->b_data, old_inode->i_sb->s_blocksize, &offset); + dir_fi = + udf_get_fileident(dir_bh->b_data, + old_inode->i_sb->s_blocksize, + &offset); } if (!dir_fi) goto end_rename; tloc = lelb_to_cpu(dir_fi->icb.extLocation); if (udf_get_lb_pblock(old_inode->i_sb, tloc, 0) - != old_dir->i_ino) + != old_dir->i_ino) goto end_rename; retval = -EMLINK; - if (!new_inode && new_dir->i_nlink >= (256<<sizeof(new_dir->i_nlink))-1) + if (!new_inode + && new_dir->i_nlink >= + (256 << sizeof(new_dir->i_nlink)) - 1) goto end_rename; } - if (!nfi) - { - nfi = udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, &retval); + if (!nfi) { + nfi = + udf_add_entry(new_dir, new_dentry, &nfibh, &ncfi, &retval); if (!nfi) goto end_rename; } @@ -1257,39 +1234,33 @@ static int udf_rename (struct inode * old_dir, struct dentry * old_dentry, ofi = udf_find_entry(old_dir, old_dentry, &ofibh, &ocfi); udf_delete_entry(old_dir, ofi, &ofibh, &ocfi); - if (new_inode) - { + if (new_inode) { new_inode->i_ctime = current_fs_time(new_inode->i_sb); inode_dec_link_count(new_inode); } old_dir->i_ctime = old_dir->i_mtime = current_fs_time(old_dir->i_sb); mark_inode_dirty(old_dir); - if (dir_fi) - { + if (dir_fi) { dir_fi->icb.extLocation = cpu_to_lelb(UDF_I_LOCATION(new_dir)); udf_update_tag((char *)dir_fi, (sizeof(struct fileIdentDesc) + - le16_to_cpu(dir_fi->lengthOfImpUse) + 3) & ~3); - if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) - { + le16_to_cpu(dir_fi-> + lengthOfImpUse) + + 3) & ~3); + if (UDF_I_ALLOCTYPE(old_inode) == ICBTAG_FLAG_AD_IN_ICB) { mark_inode_dirty(old_inode); - } - else + } else mark_buffer_dirty_inode(dir_bh, old_inode); inode_dec_link_count(old_dir); - if (new_inode) - { + if (new_inode) { inode_dec_link_count(new_inode); - } - else - { + } else { inc_nlink(new_dir); mark_inode_dirty(new_dir); } } - if (ofi) - { + if (ofi) { if (ofibh.sbh != ofibh.ebh) brelse(ofibh.ebh); brelse(ofibh.sbh); @@ -1297,10 +1268,9 @@ static int udf_rename (struct inode * old_dir, struct dentry * old_dentry, retval = 0; -end_rename: + end_rename: brelse(dir_bh); - if (nfi) - { + if (nfi) { if (nfibh.sbh != nfibh.ebh) brelse(nfibh.ebh); brelse(nfibh.sbh); @@ -1310,13 +1280,13 @@ end_rename: } const struct inode_operations udf_dir_inode_operations = { - .lookup = udf_lookup, - .create = udf_create, - .link = udf_link, - .unlink = udf_unlink, - .symlink = udf_symlink, - .mkdir = udf_mkdir, - .rmdir = udf_rmdir, - .mknod = udf_mknod, - .rename = udf_rename, + .lookup = udf_lookup, + .create = udf_create, + .link = udf_link, + .unlink = udf_unlink, + .symlink = udf_symlink, + .mkdir = udf_mkdir, + .rmdir = udf_rmdir, + .mknod = udf_mknod, + .rename = udf_rename, }; diff --git a/fs/udf/osta_udf.h b/fs/udf/osta_udf.h index e82aae652697..bec5d340d8c5 100644 --- a/fs/udf/osta_udf.h +++ b/fs/udf/osta_udf.h @@ -65,153 +65,140 @@ #define IS_DF_HARD_WRITE_PROTECT 0x01 #define IS_DF_SOFT_WRITE_PROTECT 0x02 -struct UDFIdentSuffix -{ - __le16 UDFRevision; - uint8_t OSClass; - uint8_t OSIdentifier; - uint8_t reserved[4]; +struct UDFIdentSuffix { + __le16 UDFRevision; + uint8_t OSClass; + uint8_t OSIdentifier; + uint8_t reserved[4]; } __attribute__ ((packed)); -struct impIdentSuffix -{ - uint8_t OSClass; - uint8_t OSIdentifier; - uint8_t reserved[6]; +struct impIdentSuffix { + uint8_t OSClass; + uint8_t OSIdentifier; + uint8_t reserved[6]; } __attribute__ ((packed)); -struct appIdentSuffix -{ - uint8_t impUse[8]; +struct appIdentSuffix { + uint8_t impUse[8]; } __attribute__ ((packed)); /* Logical Volume Integrity Descriptor (UDF 2.50 2.2.6) */ /* Implementation Use (UDF 2.50 2.2.6.4) */ -struct logicalVolIntegrityDescImpUse -{ - regid impIdent; - __le32 numFiles; - __le32 numDirs; - __le16 minUDFReadRev; - __le16 minUDFWriteRev; - __le16 maxUDFWriteRev; - uint8_t impUse[0]; +struct logicalVolIntegrityDescImpUse { + regid impIdent; + __le32 numFiles; + __le32 numDirs; + __le16 minUDFReadRev; + __le16 minUDFWriteRev; + __le16 maxUDFWriteRev; + uint8_t impUse[0]; } __attribute__ ((packed)); /* Implementation Use Volume Descriptor (UDF 2.50 2.2.7) */ /* Implementation Use (UDF 2.50 2.2.7.2) */ -struct impUseVolDescImpUse -{ - charspec LVICharset; - dstring logicalVolIdent[128]; - dstring LVInfo1[36]; - dstring LVInfo2[36]; - dstring LVInfo3[36]; - regid impIdent; - uint8_t impUse[128]; +struct impUseVolDescImpUse { + charspec LVICharset; + dstring logicalVolIdent[128]; + dstring LVInfo1[36]; + dstring LVInfo2[36]; + dstring LVInfo3[36]; + regid impIdent; + uint8_t impUse[128]; } __attribute__ ((packed)); -struct udfPartitionMap2 -{ - uint8_t partitionMapType; - uint8_t partitionMapLength; - uint8_t reserved1[2]; - regid partIdent; - __le16 volSeqNum; - __le16 partitionNum; +struct udfPartitionMap2 { + uint8_t partitionMapType; + uint8_t partitionMapLength; + uint8_t reserved1[2]; + regid partIdent; + __le16 volSeqNum; + __le16 partitionNum; } __attribute__ ((packed)); /* Virtual Partition Map (UDF 2.50 2.2.8) */ -struct virtualPartitionMap -{ - uint8_t partitionMapType; - uint8_t partitionMapLength; - uint8_t reserved1[2]; - regid partIdent; - __le16 volSeqNum; - __le16 partitionNum; - uint8_t reserved2[24]; +struct virtualPartitionMap { + uint8_t partitionMapType; + uint8_t partitionMapLength; + uint8_t reserved1[2]; + regid partIdent; + __le16 volSeqNum; + __le16 partitionNum; + uint8_t reserved2[24]; } __attribute__ ((packed)); /* Sparable Partition Map (UDF 2.50 2.2.9) */ -struct sparablePartitionMap -{ - uint8_t partitionMapType; - uint8_t partitionMapLength; - uint8_t reserved1[2]; - regid partIdent; - __le16 volSeqNum; - __le16 partitionNum; - __le16 packetLength; - uint8_t numSparingTables; - uint8_t reserved2[1]; - __le32 sizeSparingTable; - __le32 locSparingTable[4]; +struct sparablePartitionMap { + uint8_t partitionMapType; + uint8_t partitionMapLength; + uint8_t reserved1[2]; + regid partIdent; + __le16 volSeqNum; + __le16 partitionNum; + __le16 packetLength; + uint8_t numSparingTables; + uint8_t reserved2[1]; + __le32 sizeSparingTable; + __le32 locSparingTable[4]; } __attribute__ ((packed)); /* Metadata Partition Map (UDF 2.4.0 2.2.10) */ -struct metadataPartitionMap -{ - uint8_t partitionMapType; - uint8_t partitionMapLength; - uint8_t reserved1[2]; - regid partIdent; - __le16 volSeqNum; - __le16 partitionNum; - __le32 metadataFileLoc; - __le32 metadataMirrorFileLoc; - __le32 metadataBitmapFileLoc; - __le32 allocUnitSize; - __le16 alignUnitSize; - uint8_t flags; - uint8_t reserved2[5]; +struct metadataPartitionMap { + uint8_t partitionMapType; + uint8_t partitionMapLength; + uint8_t reserved1[2]; + regid partIdent; + __le16 volSeqNum; + __le16 partitionNum; + __le32 metadataFileLoc; + __le32 metadataMirrorFileLoc; + __le32 metadataBitmapFileLoc; + __le32 allocUnitSize; + __le16 alignUnitSize; + uint8_t flags; + uint8_t reserved2[5]; } __attribute__ ((packed)); /* Virtual Allocation Table (UDF 1.5 2.2.10) */ -struct virtualAllocationTable15 -{ - __le32 VirtualSector[0]; - regid vatIdent; - __le32 previousVATICBLoc; -} __attribute__ ((packed)); +struct virtualAllocationTable15 { + __le32 VirtualSector[0]; + regid vatIdent; + __le32 previousVATICBLoc; +} __attribute__ ((packed)); #define ICBTAG_FILE_TYPE_VAT15 0x00U /* Virtual Allocation Table (UDF 2.50 2.2.11) */ -struct virtualAllocationTable20 -{ - __le16 lengthHeader; - __le16 lengthImpUse; - dstring logicalVolIdent[128]; - __le32 previousVATICBLoc; - __le32 numFiles; - __le32 numDirs; - __le16 minReadRevision; - __le16 minWriteRevision; - __le16 maxWriteRevision; - __le16 reserved; - uint8_t impUse[0]; - __le32 vatEntry[0]; +struct virtualAllocationTable20 { + __le16 lengthHeader; + __le16 lengthImpUse; + dstring logicalVolIdent[128]; + __le32 previousVATICBLoc; + __le32 numFiles; + __le32 numDirs; + __le16 minReadRevision; + __le16 minWriteRevision; + __le16 maxWriteRevision; + __le16 reserved; + uint8_t impUse[0]; + __le32 vatEntry[0]; } __attribute__ ((packed)); #define ICBTAG_FILE_TYPE_VAT20 0xF8U /* Sparing Table (UDF 2.50 2.2.12) */ -struct sparingEntry -{ - __le32 origLocation; - __le32 mappedLocation; +struct sparingEntry { + __le32 origLocation; + __le32 mappedLocation; } __attribute__ ((packed)); -struct sparingTable -{ - tag descTag; - regid sparingIdent; - __le16 reallocationTableLen; - __le16 reserved; - __le32 sequenceNum; +struct sparingTable { + tag descTag; + regid sparingIdent; + __le16 reallocationTableLen; + __le16 reserved; + __le32 sequenceNum; struct sparingEntry - mapEntry[0]; + mapEntry[0]; } __attribute__ ((packed)); /* Metadata File (and Metadata Mirror File) (UDF 2.50 2.2.13.1) */ @@ -220,10 +207,9 @@ struct sparingTable #define ICBTAG_FILE_TYPE_BITMAP 0xFC /* struct long_ad ICB - ADImpUse (UDF 2.50 2.2.4.3) */ -struct allocDescImpUse -{ - __le16 flags; - uint8_t impUse[4]; +struct allocDescImpUse { + __le16 flags; + uint8_t impUse[4]; } __attribute__ ((packed)); #define AD_IU_EXT_ERASED 0x0001 @@ -233,27 +219,24 @@ struct allocDescImpUse /* Implementation Use Extended Attribute (UDF 2.50 3.3.4.5) */ /* FreeEASpace (UDF 2.50 3.3.4.5.1.1) */ -struct freeEaSpace -{ - __le16 headerChecksum; - uint8_t freeEASpace[0]; +struct freeEaSpace { + __le16 headerChecksum; + uint8_t freeEASpace[0]; } __attribute__ ((packed)); /* DVD Copyright Management Information (UDF 2.50 3.3.4.5.1.2) */ -struct DVDCopyrightImpUse -{ - __le16 headerChecksum; - uint8_t CGMSInfo; - uint8_t dataType; - uint8_t protectionSystemInfo[4]; +struct DVDCopyrightImpUse { + __le16 headerChecksum; + uint8_t CGMSInfo; + uint8_t dataType; + uint8_t protectionSystemInfo[4]; } __attribute__ ((packed)); /* Application Use Extended Attribute (UDF 2.50 3.3.4.6) */ /* FreeAppEASpace (UDF 2.50 3.3.4.6.1) */ -struct freeAppEASpace -{ - __le16 headerChecksum; - uint8_t freeEASpace[0]; +struct freeAppEASpace { + __le16 headerChecksum; + uint8_t freeEASpace[0]; } __attribute__ ((packed)); /* UDF Defined System Stream (UDF 2.50 3.3.7) */ @@ -293,4 +276,4 @@ struct freeAppEASpace #define UDF_OS_ID_BEOS 0x00U #define UDF_OS_ID_WINCE 0x00U -#endif /* _OSTA_UDF_H */ +#endif /* _OSTA_UDF_H */ diff --git a/fs/udf/partition.c b/fs/udf/partition.c index 467a26171cd9..a95d830a674d 100644 --- a/fs/udf/partition.c +++ b/fs/udf/partition.c @@ -28,106 +28,120 @@ #include <linux/slab.h> #include <linux/buffer_head.h> -inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset) +inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, + uint16_t partition, uint32_t offset) { - if (partition >= UDF_SB_NUMPARTS(sb)) - { - udf_debug("block=%d, partition=%d, offset=%d: invalid partition\n", - block, partition, offset); + if (partition >= UDF_SB_NUMPARTS(sb)) { + udf_debug + ("block=%d, partition=%d, offset=%d: invalid partition\n", + block, partition, offset); return 0xFFFFFFFF; } if (UDF_SB_PARTFUNC(sb, partition)) - return UDF_SB_PARTFUNC(sb, partition)(sb, block, partition, offset); + return UDF_SB_PARTFUNC(sb, partition) (sb, block, partition, + offset); else return UDF_SB_PARTROOT(sb, partition) + block + offset; } -uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset) +uint32_t udf_get_pblock_virt15(struct super_block * sb, uint32_t block, + uint16_t partition, uint32_t offset) { struct buffer_head *bh = NULL; uint32_t newblock; uint32_t index; uint32_t loc; - index = (sb->s_blocksize - UDF_SB_TYPEVIRT(sb,partition).s_start_offset) / sizeof(uint32_t); + index = + (sb->s_blocksize - + UDF_SB_TYPEVIRT(sb, partition).s_start_offset) / sizeof(uint32_t); - if (block > UDF_SB_TYPEVIRT(sb,partition).s_num_entries) - { - udf_debug("Trying to access block beyond end of VAT (%d max %d)\n", - block, UDF_SB_TYPEVIRT(sb,partition).s_num_entries); + if (block > UDF_SB_TYPEVIRT(sb, partition).s_num_entries) { + udf_debug + ("Trying to access block beyond end of VAT (%d max %d)\n", + block, UDF_SB_TYPEVIRT(sb, partition).s_num_entries); return 0xFFFFFFFF; } - if (block >= index) - { + if (block >= index) { block -= index; newblock = 1 + (block / (sb->s_blocksize / sizeof(uint32_t))); index = block % (sb->s_blocksize / sizeof(uint32_t)); - } - else - { + } else { newblock = 0; - index = UDF_SB_TYPEVIRT(sb,partition).s_start_offset / sizeof(uint32_t) + block; + index = + UDF_SB_TYPEVIRT(sb, + partition).s_start_offset / + sizeof(uint32_t) + block; } loc = udf_block_map(UDF_SB_VAT(sb), newblock); - if (!(bh = sb_bread(sb, loc))) - { + if (!(bh = sb_bread(sb, loc))) { udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%d,%d) VAT: %d[%d]\n", - sb, block, partition, loc, index); + sb, block, partition, loc, index); return 0xFFFFFFFF; } - loc = le32_to_cpu(((__le32 *)bh->b_data)[index]); + loc = le32_to_cpu(((__le32 *) bh->b_data)[index]); brelse(bh); - if (UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum == partition) - { + if (UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum == partition) { udf_debug("recursive call to udf_get_pblock!\n"); return 0xFFFFFFFF; } - return udf_get_pblock(sb, loc, UDF_I_LOCATION(UDF_SB_VAT(sb)).partitionReferenceNum, offset); + return udf_get_pblock(sb, loc, + UDF_I_LOCATION(UDF_SB_VAT(sb)). + partitionReferenceNum, offset); } -inline uint32_t udf_get_pblock_virt20(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset) +inline uint32_t udf_get_pblock_virt20(struct super_block * sb, uint32_t block, + uint16_t partition, uint32_t offset) { return udf_get_pblock_virt15(sb, block, partition, offset); } -uint32_t udf_get_pblock_spar15(struct super_block *sb, uint32_t block, uint16_t partition, uint32_t offset) +uint32_t udf_get_pblock_spar15(struct super_block * sb, uint32_t block, + uint16_t partition, uint32_t offset) { int i; struct sparingTable *st = NULL; - uint32_t packet = (block + offset) & ~(UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1); + uint32_t packet = + (block + offset) & ~(UDF_SB_TYPESPAR(sb, partition).s_packet_len - + 1); - for (i=0; i<4; i++) - { - if (UDF_SB_TYPESPAR(sb,partition).s_spar_map[i] != NULL) - { - st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,partition).s_spar_map[i]->b_data; + for (i = 0; i < 4; i++) { + if (UDF_SB_TYPESPAR(sb, partition).s_spar_map[i] != NULL) { + st = (struct sparingTable *)UDF_SB_TYPESPAR(sb, + partition). + s_spar_map[i]->b_data; break; } } - if (st) - { - for (i=0; i<le16_to_cpu(st->reallocationTableLen); i++) - { - if (le32_to_cpu(st->mapEntry[i].origLocation) >= 0xFFFFFFF0) + if (st) { + for (i = 0; i < le16_to_cpu(st->reallocationTableLen); i++) { + if (le32_to_cpu(st->mapEntry[i].origLocation) >= + 0xFFFFFFF0) break; - else if (le32_to_cpu(st->mapEntry[i].origLocation) == packet) - { - return le32_to_cpu(st->mapEntry[i].mappedLocation) + - ((block + offset) & (UDF_SB_TYPESPAR(sb,partition).s_packet_len - 1)); - } - else if (le32_to_cpu(st->mapEntry[i].origLocation) > packet) + else if (le32_to_cpu(st->mapEntry[i].origLocation) == + packet) { + return le32_to_cpu(st->mapEntry[i]. + mappedLocation) + ((block + + offset) & + (UDF_SB_TYPESPAR + (sb, + partition). + s_packet_len + - 1)); + } else if (le32_to_cpu(st->mapEntry[i].origLocation) > + packet) break; } } - return UDF_SB_PARTROOT(sb,partition) + block + offset; + return UDF_SB_PARTROOT(sb, partition) + block + offset; } int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block) @@ -138,19 +152,21 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block) uint32_t packet; int i, j, k, l; - for (i=0; i<UDF_SB_NUMPARTS(sb); i++) - { - if (old_block > UDF_SB_PARTROOT(sb,i) && - old_block < UDF_SB_PARTROOT(sb,i) + UDF_SB_PARTLEN(sb,i)) + for (i = 0; i < UDF_SB_NUMPARTS(sb); i++) { + if (old_block > UDF_SB_PARTROOT(sb, i) && + old_block < UDF_SB_PARTROOT(sb, i) + UDF_SB_PARTLEN(sb, i)) { - sdata = &UDF_SB_TYPESPAR(sb,i); - packet = (old_block - UDF_SB_PARTROOT(sb,i)) & ~(sdata->s_packet_len - 1); - - for (j=0; j<4; j++) - { - if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL) - { - st = (struct sparingTable *)sdata->s_spar_map[j]->b_data; + sdata = &UDF_SB_TYPESPAR(sb, i); + packet = + (old_block - + UDF_SB_PARTROOT(sb, + i)) & ~(sdata->s_packet_len - 1); + + for (j = 0; j < 4; j++) { + if (UDF_SB_TYPESPAR(sb, i).s_spar_map[j] != + NULL) { + st = (struct sparingTable *)sdata-> + s_spar_map[j]->b_data; break; } } @@ -158,60 +174,123 @@ int udf_relocate_blocks(struct super_block *sb, long old_block, long *new_block) if (!st) return 1; - for (k=0; k<le16_to_cpu(st->reallocationTableLen); k++) - { - if (le32_to_cpu(st->mapEntry[k].origLocation) == 0xFFFFFFFF) - { - for (; j<4; j++) - { - if (sdata->s_spar_map[j]) - { - st = (struct sparingTable *)sdata->s_spar_map[j]->b_data; - st->mapEntry[k].origLocation = cpu_to_le32(packet); - udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry)); - mark_buffer_dirty(sdata->s_spar_map[j]); + for (k = 0; k < le16_to_cpu(st->reallocationTableLen); + k++) { + if (le32_to_cpu(st->mapEntry[k].origLocation) == + 0xFFFFFFFF) { + for (; j < 4; j++) { + if (sdata->s_spar_map[j]) { + st = (struct + sparingTable *) + sdata-> + s_spar_map[j]-> + b_data; + st->mapEntry[k]. + origLocation = + cpu_to_le32(packet); + udf_update_tag((char *) + st, + sizeof + (struct + sparingTable) + + + le16_to_cpu + (st-> + reallocationTableLen) + * + sizeof + (struct + sparingEntry)); + mark_buffer_dirty + (sdata-> + s_spar_map[j]); } } - *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) + - ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1)); + *new_block = + le32_to_cpu(st->mapEntry[k]. + mappedLocation) + + ((old_block - + UDF_SB_PARTROOT(sb, + i)) & (sdata-> + s_packet_len + - 1)); return 0; - } - else if (le32_to_cpu(st->mapEntry[k].origLocation) == packet) - { - *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) + - ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1)); + } else + if (le32_to_cpu + (st->mapEntry[k].origLocation) == + packet) { + *new_block = + le32_to_cpu(st->mapEntry[k]. + mappedLocation) + + ((old_block - + UDF_SB_PARTROOT(sb, + i)) & (sdata-> + s_packet_len + - 1)); return 0; - } - else if (le32_to_cpu(st->mapEntry[k].origLocation) > packet) + } else + if (le32_to_cpu + (st->mapEntry[k].origLocation) > packet) break; } - for (l=k; l<le16_to_cpu(st->reallocationTableLen); l++) - { - if (le32_to_cpu(st->mapEntry[l].origLocation) == 0xFFFFFFFF) - { - for (; j<4; j++) - { - if (sdata->s_spar_map[j]) - { - st = (struct sparingTable *)sdata->s_spar_map[j]->b_data; - mapEntry = st->mapEntry[l]; - mapEntry.origLocation = cpu_to_le32(packet); - memmove(&st->mapEntry[k+1], &st->mapEntry[k], (l-k)*sizeof(struct sparingEntry)); - st->mapEntry[k] = mapEntry; - udf_update_tag((char *)st, sizeof(struct sparingTable) + le16_to_cpu(st->reallocationTableLen) * sizeof(struct sparingEntry)); - mark_buffer_dirty(sdata->s_spar_map[j]); + for (l = k; l < le16_to_cpu(st->reallocationTableLen); + l++) { + if (le32_to_cpu(st->mapEntry[l].origLocation) == + 0xFFFFFFFF) { + for (; j < 4; j++) { + if (sdata->s_spar_map[j]) { + st = (struct + sparingTable *) + sdata-> + s_spar_map[j]-> + b_data; + mapEntry = + st->mapEntry[l]; + mapEntry.origLocation = + cpu_to_le32(packet); + memmove(&st-> + mapEntry[k + 1], + &st-> + mapEntry[k], + (l - + k) * + sizeof(struct + sparingEntry)); + st->mapEntry[k] = + mapEntry; + udf_update_tag((char *) + st, + sizeof + (struct + sparingTable) + + + le16_to_cpu + (st-> + reallocationTableLen) + * + sizeof + (struct + sparingEntry)); + mark_buffer_dirty + (sdata-> + s_spar_map[j]); } } - *new_block = le32_to_cpu(st->mapEntry[k].mappedLocation) + - ((old_block - UDF_SB_PARTROOT(sb,i)) & (sdata->s_packet_len - 1)); + *new_block = + le32_to_cpu(st->mapEntry[k]. + mappedLocation) + + ((old_block - + UDF_SB_PARTROOT(sb, + i)) & (sdata-> + s_packet_len + - 1)); return 0; } } return 1; } } - if (i == UDF_SB_NUMPARTS(sb)) - { + if (i == UDF_SB_NUMPARTS(sb)) { /* outside of partitions */ /* for now, fail =) */ return 1; diff --git a/fs/udf/super.c b/fs/udf/super.c index 6658afb41cc7..911387aa1810 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -38,7 +38,7 @@ * 12/20/98 find the free space bitmap (if it exists) */ -#include "udfdecl.h" +#include "udfdecl.h" #include <linux/blkdev.h> #include <linux/slab.h> @@ -80,12 +80,15 @@ static int udf_remount_fs(struct super_block *, int *, char *); static int udf_check_valid(struct super_block *, int, int); static int udf_vrs(struct super_block *sb, int silent); static int udf_load_partition(struct super_block *, kernel_lb_addr *); -static int udf_load_logicalvol(struct super_block *, struct buffer_head *, kernel_lb_addr *); +static int udf_load_logicalvol(struct super_block *, struct buffer_head *, + kernel_lb_addr *); static void udf_load_logicalvolint(struct super_block *, kernel_extent_ad); static void udf_find_anchor(struct super_block *); -static int udf_find_fileset(struct super_block *, kernel_lb_addr *, kernel_lb_addr *); +static int udf_find_fileset(struct super_block *, kernel_lb_addr *, + kernel_lb_addr *); static void udf_load_pvoldesc(struct super_block *, struct buffer_head *); -static void udf_load_fileset(struct super_block *, struct buffer_head *, kernel_lb_addr *); +static void udf_load_fileset(struct super_block *, struct buffer_head *, + kernel_lb_addr *); static void udf_load_partdesc(struct super_block *, struct buffer_head *); static void udf_open_lvid(struct super_block *); static void udf_close_lvid(struct super_block *); @@ -94,25 +97,27 @@ static int udf_statfs(struct dentry *, struct kstatfs *); /* UDF filesystem type */ static int udf_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data, struct vfsmount *mnt) + int flags, const char *dev_name, void *data, + struct vfsmount *mnt) { return get_sb_bdev(fs_type, flags, dev_name, data, udf_fill_super, mnt); } static struct file_system_type udf_fstype = { - .owner = THIS_MODULE, - .name = "udf", - .get_sb = udf_get_sb, - .kill_sb = kill_block_super, - .fs_flags = FS_REQUIRES_DEV, + .owner = THIS_MODULE, + .name = "udf", + .get_sb = udf_get_sb, + .kill_sb = kill_block_super, + .fs_flags = FS_REQUIRES_DEV, }; -static struct kmem_cache * udf_inode_cachep; +static struct kmem_cache *udf_inode_cachep; static struct inode *udf_alloc_inode(struct super_block *sb) { struct udf_inode_info *ei; - ei = (struct udf_inode_info *)kmem_cache_alloc(udf_inode_cachep, GFP_KERNEL); + ei = (struct udf_inode_info *)kmem_cache_alloc(udf_inode_cachep, + GFP_KERNEL); if (!ei) return NULL; @@ -130,9 +135,9 @@ static void udf_destroy_inode(struct inode *inode) kmem_cache_free(udf_inode_cachep, UDF_I(inode)); } -static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags) +static void init_once(void *foo, struct kmem_cache *cachep, unsigned long flags) { - struct udf_inode_info *ei = (struct udf_inode_info *) foo; + struct udf_inode_info *ei = (struct udf_inode_info *)foo; ei->i_ext.i_data = NULL; inode_init_once(&ei->vfs_inode); @@ -142,8 +147,8 @@ static int init_inodecache(void) { udf_inode_cachep = kmem_cache_create("udf_inode_cache", sizeof(struct udf_inode_info), - 0, (SLAB_RECLAIM_ACCOUNT| - SLAB_MEM_SPREAD), + 0, (SLAB_RECLAIM_ACCOUNT | + SLAB_MEM_SPREAD), init_once, NULL); if (udf_inode_cachep == NULL) return -ENOMEM; @@ -157,19 +162,18 @@ static void destroy_inodecache(void) /* Superblock operations */ static const struct super_operations udf_sb_ops = { - .alloc_inode = udf_alloc_inode, - .destroy_inode = udf_destroy_inode, - .write_inode = udf_write_inode, - .delete_inode = udf_delete_inode, - .clear_inode = udf_clear_inode, - .put_super = udf_put_super, - .write_super = udf_write_super, - .statfs = udf_statfs, - .remount_fs = udf_remount_fs, + .alloc_inode = udf_alloc_inode, + .destroy_inode = udf_destroy_inode, + .write_inode = udf_write_inode, + .delete_inode = udf_delete_inode, + .clear_inode = udf_clear_inode, + .put_super = udf_put_super, + .write_super = udf_write_super, + .statfs = udf_statfs, + .remount_fs = udf_remount_fs, }; -struct udf_options -{ +struct udf_options { unsigned char novrs; unsigned int blocksize; unsigned int session; @@ -196,9 +200,9 @@ static int __init init_udf_fs(void) if (err) goto out; return 0; -out: + out: destroy_inodecache(); -out1: + out1: return err; } @@ -209,7 +213,7 @@ static void __exit exit_udf_fs(void) } module_init(init_udf_fs) -module_exit(exit_udf_fs) + module_exit(exit_udf_fs) /* * udf_parse_options @@ -264,7 +268,6 @@ module_exit(exit_udf_fs) * July 1, 1997 - Andrew E. Mileski * Written, tested, and released. */ - enum { Opt_novrs, Opt_nostrict, Opt_bs, Opt_unhide, Opt_undelete, Opt_noadinicb, Opt_adinicb, Opt_shortad, Opt_longad, @@ -303,8 +306,7 @@ static match_table_t tokens = { {Opt_err, NULL} }; -static int -udf_parse_options(char *options, struct udf_options *uopt) +static int udf_parse_options(char *options, struct udf_options *uopt) { char *p; int option; @@ -323,126 +325,123 @@ udf_parse_options(char *options, struct udf_options *uopt) if (!options) return 1; - while ((p = strsep(&options, ",")) != NULL) - { + while ((p = strsep(&options, ",")) != NULL) { substring_t args[MAX_OPT_ARGS]; int token; if (!*p) continue; token = match_token(p, tokens, args); - switch (token) - { - case Opt_novrs: - uopt->novrs = 1; - case Opt_bs: - if (match_int(&args[0], &option)) - return 0; - uopt->blocksize = option; - break; - case Opt_unhide: - uopt->flags |= (1 << UDF_FLAG_UNHIDE); - break; - case Opt_undelete: - uopt->flags |= (1 << UDF_FLAG_UNDELETE); - break; - case Opt_noadinicb: - uopt->flags &= ~(1 << UDF_FLAG_USE_AD_IN_ICB); - break; - case Opt_adinicb: - uopt->flags |= (1 << UDF_FLAG_USE_AD_IN_ICB); - break; - case Opt_shortad: - uopt->flags |= (1 << UDF_FLAG_USE_SHORT_AD); - break; - case Opt_longad: - uopt->flags &= ~(1 << UDF_FLAG_USE_SHORT_AD); - break; - case Opt_gid: - if (match_int(args, &option)) - return 0; - uopt->gid = option; - break; - case Opt_uid: - if (match_int(args, &option)) - return 0; - uopt->uid = option; - break; - case Opt_umask: - if (match_octal(args, &option)) - return 0; - uopt->umask = option; - break; - case Opt_nostrict: - uopt->flags &= ~(1 << UDF_FLAG_STRICT); - break; - case Opt_session: - if (match_int(args, &option)) - return 0; - uopt->session = option; - break; - case Opt_lastblock: - if (match_int(args, &option)) - return 0; - uopt->lastblock = option; - break; - case Opt_anchor: - if (match_int(args, &option)) - return 0; - uopt->anchor = option; - break; - case Opt_volume: - if (match_int(args, &option)) - return 0; - uopt->volume = option; - break; - case Opt_partition: - if (match_int(args, &option)) - return 0; - uopt->partition = option; - break; - case Opt_fileset: - if (match_int(args, &option)) - return 0; - uopt->fileset = option; - break; - case Opt_rootdir: - if (match_int(args, &option)) - return 0; - uopt->rootdir = option; - break; - case Opt_utf8: - uopt->flags |= (1 << UDF_FLAG_UTF8); - break; + switch (token) { + case Opt_novrs: + uopt->novrs = 1; + case Opt_bs: + if (match_int(&args[0], &option)) + return 0; + uopt->blocksize = option; + break; + case Opt_unhide: + uopt->flags |= (1 << UDF_FLAG_UNHIDE); + break; + case Opt_undelete: + uopt->flags |= (1 << UDF_FLAG_UNDELETE); + break; + case Opt_noadinicb: + uopt->flags &= ~(1 << UDF_FLAG_USE_AD_IN_ICB); + break; + case Opt_adinicb: + uopt->flags |= (1 << UDF_FLAG_USE_AD_IN_ICB); + break; + case Opt_shortad: + uopt->flags |= (1 << UDF_FLAG_USE_SHORT_AD); + break; + case Opt_longad: + uopt->flags &= ~(1 << UDF_FLAG_USE_SHORT_AD); + break; + case Opt_gid: + if (match_int(args, &option)) + return 0; + uopt->gid = option; + break; + case Opt_uid: + if (match_int(args, &option)) + return 0; + uopt->uid = option; + break; + case Opt_umask: + if (match_octal(args, &option)) + return 0; + uopt->umask = option; + break; + case Opt_nostrict: + uopt->flags &= ~(1 << UDF_FLAG_STRICT); + break; + case Opt_session: + if (match_int(args, &option)) + return 0; + uopt->session = option; + break; + case Opt_lastblock: + if (match_int(args, &option)) + return 0; + uopt->lastblock = option; + break; + case Opt_anchor: + if (match_int(args, &option)) + return 0; + uopt->anchor = option; + break; + case Opt_volume: + if (match_int(args, &option)) + return 0; + uopt->volume = option; + break; + case Opt_partition: + if (match_int(args, &option)) + return 0; + uopt->partition = option; + break; + case Opt_fileset: + if (match_int(args, &option)) + return 0; + uopt->fileset = option; + break; + case Opt_rootdir: + if (match_int(args, &option)) + return 0; + uopt->rootdir = option; + break; + case Opt_utf8: + uopt->flags |= (1 << UDF_FLAG_UTF8); + break; #ifdef CONFIG_UDF_NLS - case Opt_iocharset: - uopt->nls_map = load_nls(args[0].from); - uopt->flags |= (1 << UDF_FLAG_NLS_MAP); - break; + case Opt_iocharset: + uopt->nls_map = load_nls(args[0].from); + uopt->flags |= (1 << UDF_FLAG_NLS_MAP); + break; #endif - case Opt_uignore: - uopt->flags |= (1 << UDF_FLAG_UID_IGNORE); - break; - case Opt_uforget: - uopt->flags |= (1 << UDF_FLAG_UID_FORGET); - break; - case Opt_gignore: - uopt->flags |= (1 << UDF_FLAG_GID_IGNORE); - break; - case Opt_gforget: - uopt->flags |= (1 << UDF_FLAG_GID_FORGET); - break; - default: - printk(KERN_ERR "udf: bad mount option \"%s\" " - "or missing value\n", p); + case Opt_uignore: + uopt->flags |= (1 << UDF_FLAG_UID_IGNORE); + break; + case Opt_uforget: + uopt->flags |= (1 << UDF_FLAG_UID_FORGET); + break; + case Opt_gignore: + uopt->flags |= (1 << UDF_FLAG_GID_IGNORE); + break; + case Opt_gforget: + uopt->flags |= (1 << UDF_FLAG_GID_FORGET); + break; + default: + printk(KERN_ERR "udf: bad mount option \"%s\" " + "or missing value\n", p); return 0; } } return 1; } -void -udf_write_super(struct super_block *sb) +void udf_write_super(struct super_block *sb) { lock_kernel(); if (!(sb->s_flags & MS_RDONLY)) @@ -451,22 +450,21 @@ udf_write_super(struct super_block *sb) unlock_kernel(); } -static int -udf_remount_fs(struct super_block *sb, int *flags, char *options) +static int udf_remount_fs(struct super_block *sb, int *flags, char *options) { struct udf_options uopt; - uopt.flags = UDF_SB(sb)->s_flags ; - uopt.uid = UDF_SB(sb)->s_uid ; - uopt.gid = UDF_SB(sb)->s_gid ; - uopt.umask = UDF_SB(sb)->s_umask ; + uopt.flags = UDF_SB(sb)->s_flags; + uopt.uid = UDF_SB(sb)->s_uid; + uopt.gid = UDF_SB(sb)->s_gid; + uopt.umask = UDF_SB(sb)->s_umask; - if ( !udf_parse_options(options, &uopt) ) + if (!udf_parse_options(options, &uopt)) return -EINVAL; UDF_SB(sb)->s_flags = uopt.flags; - UDF_SB(sb)->s_uid = uopt.uid; - UDF_SB(sb)->s_gid = uopt.gid; + UDF_SB(sb)->s_uid = uopt.uid; + UDF_SB(sb)->s_gid = uopt.gid; UDF_SB(sb)->s_umask = uopt.umask; if (UDF_SB_LVIDBH(sb)) { @@ -512,8 +510,7 @@ udf_remount_fs(struct super_block *sb, int *flags, char *options) * July 1, 1997 - Andrew E. Mileski * Written, tested, and released. */ -static int -udf_set_blocksize(struct super_block *sb, int bsize) +static int udf_set_blocksize(struct super_block *sb, int bsize) { if (!sb_min_blocksize(sb, bsize)) { udf_debug("Bad block size (%d)\n", bsize); @@ -523,16 +520,15 @@ udf_set_blocksize(struct super_block *sb, int bsize) return sb->s_blocksize; } -static int -udf_vrs(struct super_block *sb, int silent) +static int udf_vrs(struct super_block *sb, int silent) { struct volStructDesc *vsd = NULL; int sector = 32768; int sectorsize; struct buffer_head *bh = NULL; - int iso9660=0; - int nsr02=0; - int nsr03=0; + int iso9660 = 0; + int nsr02 = 0; + int nsr03 = 0; /* Block size must be a multiple of 512 */ if (sb->s_blocksize & 511) @@ -546,10 +542,9 @@ udf_vrs(struct super_block *sb, int silent) sector += (UDF_SB_SESSION(sb) << sb->s_blocksize_bits); udf_debug("Starting at sector %u (%ld byte sectors)\n", - (sector >> sb->s_blocksize_bits), sb->s_blocksize); + (sector >> sb->s_blocksize_bits), sb->s_blocksize); /* Process the sequence (if applicable) */ - for (;!nsr02 && !nsr03; sector += sectorsize) - { + for (; !nsr02 && !nsr03; sector += sectorsize) { /* Read a block */ bh = udf_tread(sb, sector >> sb->s_blocksize_bits); if (!bh) @@ -557,52 +552,56 @@ udf_vrs(struct super_block *sb, int silent) /* Look for ISO descriptors */ vsd = (struct volStructDesc *)(bh->b_data + - (sector & (sb->s_blocksize - 1))); + (sector & + (sb->s_blocksize - 1))); - if (vsd->stdIdent[0] == 0) - { + if (vsd->stdIdent[0] == 0) { brelse(bh); break; - } - else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001, VSD_STD_ID_LEN)) - { + } else + if (!strncmp + (vsd->stdIdent, VSD_STD_ID_CD001, VSD_STD_ID_LEN)) { iso9660 = sector; - switch (vsd->structType) - { - case 0: - udf_debug("ISO9660 Boot Record found\n"); - break; - case 1: - udf_debug("ISO9660 Primary Volume Descriptor found\n"); - break; - case 2: - udf_debug("ISO9660 Supplementary Volume Descriptor found\n"); - break; - case 3: - udf_debug("ISO9660 Volume Partition Descriptor found\n"); - break; - case 255: - udf_debug("ISO9660 Volume Descriptor Set Terminator found\n"); - break; - default: - udf_debug("ISO9660 VRS (%u) found\n", vsd->structType); - break; + switch (vsd->structType) { + case 0: + udf_debug("ISO9660 Boot Record found\n"); + break; + case 1: + udf_debug + ("ISO9660 Primary Volume Descriptor found\n"); + break; + case 2: + udf_debug + ("ISO9660 Supplementary Volume Descriptor found\n"); + break; + case 3: + udf_debug + ("ISO9660 Volume Partition Descriptor found\n"); + break; + case 255: + udf_debug + ("ISO9660 Volume Descriptor Set Terminator found\n"); + break; + default: + udf_debug("ISO9660 VRS (%u) found\n", + vsd->structType); + break; } - } - else if (!strncmp(vsd->stdIdent, VSD_STD_ID_BEA01, VSD_STD_ID_LEN)) - { - } - else if (!strncmp(vsd->stdIdent, VSD_STD_ID_TEA01, VSD_STD_ID_LEN)) - { + } else + if (!strncmp + (vsd->stdIdent, VSD_STD_ID_BEA01, VSD_STD_ID_LEN)) { + } else + if (!strncmp + (vsd->stdIdent, VSD_STD_ID_TEA01, VSD_STD_ID_LEN)) { brelse(bh); break; - } - else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR02, VSD_STD_ID_LEN)) - { + } else + if (!strncmp + (vsd->stdIdent, VSD_STD_ID_NSR02, VSD_STD_ID_LEN)) { nsr02 = sector; - } - else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR03, VSD_STD_ID_LEN)) - { + } else + if (!strncmp + (vsd->stdIdent, VSD_STD_ID_NSR03, VSD_STD_ID_LEN)) { nsr03 = sector; } brelse(bh); @@ -635,8 +634,7 @@ udf_vrs(struct super_block *sb, int silent) * July 1, 1997 - Andrew E. Mileski * Written, tested, and released. */ -static void -udf_find_anchor(struct super_block *sb) +static void udf_find_anchor(struct super_block *sb) { int lastblock = UDF_SB_LASTBLOCK(sb); struct buffer_head *bh = NULL; @@ -644,13 +642,13 @@ udf_find_anchor(struct super_block *sb) uint32_t location; int i; - if (lastblock) - { + if (lastblock) { int varlastblock = udf_variable_to_fixed(lastblock); - int last[] = { lastblock, lastblock - 2, - lastblock - 150, lastblock - 152, - varlastblock, varlastblock - 2, - varlastblock - 150, varlastblock - 152 }; + int last[] = { lastblock, lastblock - 2, + lastblock - 150, lastblock - 152, + varlastblock, varlastblock - 2, + varlastblock - 150, varlastblock - 152 + }; lastblock = 0; @@ -663,90 +661,103 @@ udf_find_anchor(struct super_block *sb) * however, if the disc isn't closed, it could be 512 */ for (i = 0; !lastblock && i < ARRAY_SIZE(last); i++) { - if (last[i] < 0 || !(bh = sb_bread(sb, last[i]))) - { + if (last[i] < 0 || !(bh = sb_bread(sb, last[i]))) { ident = location = 0; - } - else - { - ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent); - location = le32_to_cpu(((tag *)bh->b_data)->tagLocation); + } else { + ident = + le16_to_cpu(((tag *) bh->b_data)->tagIdent); + location = + le32_to_cpu(((tag *) bh->b_data)-> + tagLocation); brelse(bh); } - if (ident == TAG_IDENT_AVDP) - { - if (location == last[i] - UDF_SB_SESSION(sb)) - { - lastblock = UDF_SB_ANCHOR(sb)[0] = last[i] - UDF_SB_SESSION(sb); - UDF_SB_ANCHOR(sb)[1] = last[i] - 256 - UDF_SB_SESSION(sb); - } - else if (location == udf_variable_to_fixed(last[i]) - UDF_SB_SESSION(sb)) - { + if (ident == TAG_IDENT_AVDP) { + if (location == last[i] - UDF_SB_SESSION(sb)) { + lastblock = UDF_SB_ANCHOR(sb)[0] = + last[i] - UDF_SB_SESSION(sb); + UDF_SB_ANCHOR(sb)[1] = + last[i] - 256 - UDF_SB_SESSION(sb); + } else if (location == + udf_variable_to_fixed(last[i]) - + UDF_SB_SESSION(sb)) { UDF_SET_FLAG(sb, UDF_FLAG_VARCONV); - lastblock = UDF_SB_ANCHOR(sb)[0] = udf_variable_to_fixed(last[i]) - UDF_SB_SESSION(sb); - UDF_SB_ANCHOR(sb)[1] = lastblock - 256 - UDF_SB_SESSION(sb); - } - else - udf_debug("Anchor found at block %d, location mismatch %d.\n", - last[i], location); - } - else if (ident == TAG_IDENT_FE || ident == TAG_IDENT_EFE) - { + lastblock = UDF_SB_ANCHOR(sb)[0] = + udf_variable_to_fixed(last[i]) - + UDF_SB_SESSION(sb); + UDF_SB_ANCHOR(sb)[1] = + lastblock - 256 - + UDF_SB_SESSION(sb); + } else + udf_debug + ("Anchor found at block %d, location mismatch %d.\n", + last[i], location); + } else if (ident == TAG_IDENT_FE + || ident == TAG_IDENT_EFE) { lastblock = last[i]; UDF_SB_ANCHOR(sb)[3] = 512; - } - else - { - if (last[i] < 256 || !(bh = sb_bread(sb, last[i] - 256))) - { + } else { + if (last[i] < 256 + || !(bh = sb_bread(sb, last[i] - 256))) { ident = location = 0; - } - else - { - ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent); - location = le32_to_cpu(((tag *)bh->b_data)->tagLocation); + } else { + ident = + le16_to_cpu(((tag *) bh->b_data)-> + tagIdent); + location = + le32_to_cpu(((tag *) bh->b_data)-> + tagLocation); brelse(bh); } - + if (ident == TAG_IDENT_AVDP && - location == last[i] - 256 - UDF_SB_SESSION(sb)) - { + location == + last[i] - 256 - UDF_SB_SESSION(sb)) { lastblock = last[i]; UDF_SB_ANCHOR(sb)[1] = last[i] - 256; - } - else - { - if (last[i] < 312 + UDF_SB_SESSION(sb) || !(bh = sb_bread(sb, last[i] - 312 - UDF_SB_SESSION(sb)))) + } else { + if (last[i] < 312 + UDF_SB_SESSION(sb) + || !(bh = + sb_bread(sb, + last[i] - 312 - + UDF_SB_SESSION(sb)))) { ident = location = 0; - } - else - { - ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent); - location = le32_to_cpu(((tag *)bh->b_data)->tagLocation); + } else { + ident = + le16_to_cpu(((tag *) bh-> + b_data)-> + tagIdent); + location = + le32_to_cpu(((tag *) bh-> + b_data)-> + tagLocation); brelse(bh); } - + if (ident == TAG_IDENT_AVDP && - location == udf_variable_to_fixed(last[i]) - 256) - { - UDF_SET_FLAG(sb, UDF_FLAG_VARCONV); - lastblock = udf_variable_to_fixed(last[i]); - UDF_SB_ANCHOR(sb)[1] = lastblock - 256; + location == + udf_variable_to_fixed(last[i]) - + 256) { + UDF_SET_FLAG(sb, + UDF_FLAG_VARCONV); + lastblock = + udf_variable_to_fixed(last + [i]); + UDF_SB_ANCHOR(sb)[1] = + lastblock - 256; } } } } } - if (!lastblock) - { + if (!lastblock) { /* We havn't found the lastblock. check 312 */ - if ((bh = sb_bread(sb, 312 + UDF_SB_SESSION(sb)))) - { - ident = le16_to_cpu(((tag *)bh->b_data)->tagIdent); - location = le32_to_cpu(((tag *)bh->b_data)->tagLocation); + if ((bh = sb_bread(sb, 312 + UDF_SB_SESSION(sb)))) { + ident = le16_to_cpu(((tag *) bh->b_data)->tagIdent); + location = + le32_to_cpu(((tag *) bh->b_data)->tagLocation); brelse(bh); if (ident == TAG_IDENT_AVDP && location == 256) @@ -755,18 +766,19 @@ udf_find_anchor(struct super_block *sb) } for (i = 0; i < ARRAY_SIZE(UDF_SB_ANCHOR(sb)); i++) { - if (UDF_SB_ANCHOR(sb)[i]) - { + if (UDF_SB_ANCHOR(sb)[i]) { if (!(bh = udf_read_tagged(sb, - UDF_SB_ANCHOR(sb)[i], UDF_SB_ANCHOR(sb)[i], &ident))) - { + UDF_SB_ANCHOR(sb)[i], + UDF_SB_ANCHOR(sb)[i], + &ident))) { UDF_SB_ANCHOR(sb)[i] = 0; - } - else - { + } else { brelse(bh); if ((ident != TAG_IDENT_AVDP) && (i || - (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE))) + (ident != + TAG_IDENT_FE + && ident != + TAG_IDENT_EFE))) { UDF_SB_ANCHOR(sb)[i] = 0; } @@ -777,72 +789,75 @@ udf_find_anchor(struct super_block *sb) UDF_SB_LASTBLOCK(sb) = lastblock; } -static int -udf_find_fileset(struct super_block *sb, kernel_lb_addr *fileset, kernel_lb_addr *root) +static int +udf_find_fileset(struct super_block *sb, kernel_lb_addr * fileset, + kernel_lb_addr * root) { struct buffer_head *bh = NULL; long lastblock; uint16_t ident; if (fileset->logicalBlockNum != 0xFFFFFFFF || - fileset->partitionReferenceNum != 0xFFFF) - { + fileset->partitionReferenceNum != 0xFFFF) { bh = udf_read_ptagged(sb, *fileset, 0, &ident); if (!bh) return 1; - else if (ident != TAG_IDENT_FSD) - { + else if (ident != TAG_IDENT_FSD) { brelse(bh); return 1; } - + } - if (!bh) /* Search backwards through the partitions */ - { + if (!bh) { /* Search backwards through the partitions */ kernel_lb_addr newfileset; return 1; - - for (newfileset.partitionReferenceNum=UDF_SB_NUMPARTS(sb)-1; - (newfileset.partitionReferenceNum != 0xFFFF && - fileset->logicalBlockNum == 0xFFFFFFFF && - fileset->partitionReferenceNum == 0xFFFF); - newfileset.partitionReferenceNum--) - { - lastblock = UDF_SB_PARTLEN(sb, newfileset.partitionReferenceNum); + + for (newfileset.partitionReferenceNum = UDF_SB_NUMPARTS(sb) - 1; + (newfileset.partitionReferenceNum != 0xFFFF && + fileset->logicalBlockNum == 0xFFFFFFFF && + fileset->partitionReferenceNum == 0xFFFF); + newfileset.partitionReferenceNum--) { + lastblock = + UDF_SB_PARTLEN(sb, + newfileset.partitionReferenceNum); newfileset.logicalBlockNum = 0; - do - { - bh = udf_read_ptagged(sb, newfileset, 0, &ident); - if (!bh) - { - newfileset.logicalBlockNum ++; + do { + bh = udf_read_ptagged(sb, newfileset, 0, + &ident); + if (!bh) { + newfileset.logicalBlockNum++; continue; } - switch (ident) - { - case TAG_IDENT_SBD: + switch (ident) { + case TAG_IDENT_SBD: { struct spaceBitmapDesc *sp; - sp = (struct spaceBitmapDesc *)bh->b_data; - newfileset.logicalBlockNum += 1 + - ((le32_to_cpu(sp->numOfBytes) + sizeof(struct spaceBitmapDesc) - 1) - >> sb->s_blocksize_bits); + sp = (struct spaceBitmapDesc *) + bh->b_data; + newfileset.logicalBlockNum += + 1 + + ((le32_to_cpu + (sp->numOfBytes) + + sizeof(struct + spaceBitmapDesc) - + 1) + >> sb->s_blocksize_bits); brelse(bh); break; } - case TAG_IDENT_FSD: + case TAG_IDENT_FSD: { *fileset = newfileset; break; } - default: + default: { - newfileset.logicalBlockNum ++; + newfileset.logicalBlockNum++; brelse(bh); bh = NULL; break; @@ -850,16 +865,16 @@ udf_find_fileset(struct super_block *sb, kernel_lb_addr *fileset, kernel_lb_addr } } while (newfileset.logicalBlockNum < lastblock && - fileset->logicalBlockNum == 0xFFFFFFFF && - fileset->partitionReferenceNum == 0xFFFF); + fileset->logicalBlockNum == 0xFFFFFFFF && + fileset->partitionReferenceNum == 0xFFFF); } } if ((fileset->logicalBlockNum != 0xFFFFFFFF || - fileset->partitionReferenceNum != 0xFFFF) && bh) - { + fileset->partitionReferenceNum != 0xFFFF) && bh) { udf_debug("Fileset at block=%d, partition=%d\n", - fileset->logicalBlockNum, fileset->partitionReferenceNum); + fileset->logicalBlockNum, + fileset->partitionReferenceNum); UDF_SB_PARTITION(sb) = fileset->partitionReferenceNum; udf_load_fileset(sb, bh, root); @@ -869,8 +884,7 @@ udf_find_fileset(struct super_block *sb, kernel_lb_addr *fileset, kernel_lb_addr return 1; } -static void -udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh) +static void udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh) { struct primaryVolDesc *pvoldesc; time_t recording; @@ -880,37 +894,35 @@ udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh) pvoldesc = (struct primaryVolDesc *)bh->b_data; - if ( udf_stamp_to_time(&recording, &recording_usec, - lets_to_cpu(pvoldesc->recordingDateAndTime)) ) - { + if (udf_stamp_to_time(&recording, &recording_usec, + lets_to_cpu(pvoldesc->recordingDateAndTime))) { kernel_timestamp ts; ts = lets_to_cpu(pvoldesc->recordingDateAndTime); - udf_debug("recording time %ld/%ld, %04u/%02u/%02u %02u:%02u (%x)\n", - recording, recording_usec, - ts.year, ts.month, ts.day, ts.hour, ts.minute, ts.typeAndTimezone); + udf_debug + ("recording time %ld/%ld, %04u/%02u/%02u %02u:%02u (%x)\n", + recording, recording_usec, ts.year, ts.month, ts.day, + ts.hour, ts.minute, ts.typeAndTimezone); UDF_SB_RECORDTIME(sb).tv_sec = recording; UDF_SB_RECORDTIME(sb).tv_nsec = recording_usec * 1000; } - if ( !udf_build_ustr(&instr, pvoldesc->volIdent, 32) ) - { - if (udf_CS0toUTF8(&outstr, &instr)) - { - strncpy( UDF_SB_VOLIDENT(sb), outstr.u_name, + if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32)) { + if (udf_CS0toUTF8(&outstr, &instr)) { + strncpy(UDF_SB_VOLIDENT(sb), outstr.u_name, outstr.u_len > 31 ? 31 : outstr.u_len); udf_debug("volIdent[] = '%s'\n", UDF_SB_VOLIDENT(sb)); } } - if ( !udf_build_ustr(&instr, pvoldesc->volSetIdent, 128) ) - { + if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128)) { if (udf_CS0toUTF8(&outstr, &instr)) udf_debug("volSetIdent[] = '%s'\n", outstr.u_name); } } -static void -udf_load_fileset(struct super_block *sb, struct buffer_head *bh, kernel_lb_addr *root) +static void +udf_load_fileset(struct super_block *sb, struct buffer_head *bh, + kernel_lb_addr * root) { struct fileSetDesc *fset; @@ -920,109 +932,154 @@ udf_load_fileset(struct super_block *sb, struct buffer_head *bh, kernel_lb_addr UDF_SB_SERIALNUM(sb) = le16_to_cpu(fset->descTag.tagSerialNum); - udf_debug("Rootdir at block=%d, partition=%d\n", - root->logicalBlockNum, root->partitionReferenceNum); + udf_debug("Rootdir at block=%d, partition=%d\n", + root->logicalBlockNum, root->partitionReferenceNum); } -static void -udf_load_partdesc(struct super_block *sb, struct buffer_head *bh) +static void udf_load_partdesc(struct super_block *sb, struct buffer_head *bh) { struct partitionDesc *p; int i; p = (struct partitionDesc *)bh->b_data; - for (i=0; i<UDF_SB_NUMPARTS(sb); i++) - { - udf_debug("Searching map: (%d == %d)\n", - UDF_SB_PARTMAPS(sb)[i].s_partition_num, le16_to_cpu(p->partitionNumber)); - if (UDF_SB_PARTMAPS(sb)[i].s_partition_num == le16_to_cpu(p->partitionNumber)) - { - UDF_SB_PARTLEN(sb,i) = le32_to_cpu(p->partitionLength); /* blocks */ - UDF_SB_PARTROOT(sb,i) = le32_to_cpu(p->partitionStartingLocation); - if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_READ_ONLY) - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_READ_ONLY; - if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_WRITE_ONCE) - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_WRITE_ONCE; - if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_REWRITABLE) - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_REWRITABLE; - if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_OVERWRITABLE) - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_OVERWRITABLE; - - if (!strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR02) || - !strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR03)) - { + for (i = 0; i < UDF_SB_NUMPARTS(sb); i++) { + udf_debug("Searching map: (%d == %d)\n", + UDF_SB_PARTMAPS(sb)[i].s_partition_num, + le16_to_cpu(p->partitionNumber)); + if (UDF_SB_PARTMAPS(sb)[i].s_partition_num == + le16_to_cpu(p->partitionNumber)) { + UDF_SB_PARTLEN(sb, i) = le32_to_cpu(p->partitionLength); /* blocks */ + UDF_SB_PARTROOT(sb, i) = + le32_to_cpu(p->partitionStartingLocation); + if (le32_to_cpu(p->accessType) == + PD_ACCESS_TYPE_READ_ONLY) + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_READ_ONLY; + if (le32_to_cpu(p->accessType) == + PD_ACCESS_TYPE_WRITE_ONCE) + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_WRITE_ONCE; + if (le32_to_cpu(p->accessType) == + PD_ACCESS_TYPE_REWRITABLE) + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_REWRITABLE; + if (le32_to_cpu(p->accessType) == + PD_ACCESS_TYPE_OVERWRITABLE) + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_OVERWRITABLE; + + if (!strcmp + (p->partitionContents.ident, + PD_PARTITION_CONTENTS_NSR02) + || !strcmp(p->partitionContents.ident, + PD_PARTITION_CONTENTS_NSR03)) { struct partitionHeaderDesc *phd; - phd = (struct partitionHeaderDesc *)(p->partitionContentsUse); - if (phd->unallocSpaceTable.extLength) - { - kernel_lb_addr loc = { le32_to_cpu(phd->unallocSpaceTable.extPosition), i }; - - UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table = - udf_iget(sb, loc); - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_UNALLOC_TABLE; - udf_debug("unallocSpaceTable (part %d) @ %ld\n", - i, UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table->i_ino); + phd = + (struct partitionHeaderDesc *)(p-> + partitionContentsUse); + if (phd->unallocSpaceTable.extLength) { + kernel_lb_addr loc = + { le32_to_cpu(phd-> + unallocSpaceTable. + extPosition), i }; + + UDF_SB_PARTMAPS(sb)[i].s_uspace. + s_table = udf_iget(sb, loc); + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_UNALLOC_TABLE; + udf_debug + ("unallocSpaceTable (part %d) @ %ld\n", + i, + UDF_SB_PARTMAPS(sb)[i].s_uspace. + s_table->i_ino); } - if (phd->unallocSpaceBitmap.extLength) - { + if (phd->unallocSpaceBitmap.extLength) { UDF_SB_ALLOC_BITMAP(sb, i, s_uspace); - if (UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap != NULL) - { - UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extLength = - le32_to_cpu(phd->unallocSpaceBitmap.extLength); - UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extPosition = - le32_to_cpu(phd->unallocSpaceBitmap.extPosition); - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_UNALLOC_BITMAP; - udf_debug("unallocSpaceBitmap (part %d) @ %d\n", - i, UDF_SB_PARTMAPS(sb)[i].s_uspace.s_bitmap->s_extPosition); + if (UDF_SB_PARTMAPS(sb)[i].s_uspace. + s_bitmap != NULL) { + UDF_SB_PARTMAPS(sb)[i].s_uspace. + s_bitmap->s_extLength = + le32_to_cpu(phd-> + unallocSpaceBitmap. + extLength); + UDF_SB_PARTMAPS(sb)[i].s_uspace. + s_bitmap->s_extPosition = + le32_to_cpu(phd-> + unallocSpaceBitmap. + extPosition); + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_UNALLOC_BITMAP; + udf_debug + ("unallocSpaceBitmap (part %d) @ %d\n", + i, + UDF_SB_PARTMAPS(sb)[i]. + s_uspace.s_bitmap-> + s_extPosition); } } if (phd->partitionIntegrityTable.extLength) - udf_debug("partitionIntegrityTable (part %d)\n", i); - if (phd->freedSpaceTable.extLength) - { - kernel_lb_addr loc = { le32_to_cpu(phd->freedSpaceTable.extPosition), i }; - - UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table = - udf_iget(sb, loc); - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_FREED_TABLE; - udf_debug("freedSpaceTable (part %d) @ %ld\n", - i, UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table->i_ino); + udf_debug + ("partitionIntegrityTable (part %d)\n", + i); + if (phd->freedSpaceTable.extLength) { + kernel_lb_addr loc = + { le32_to_cpu(phd->freedSpaceTable. + extPosition), i }; + + UDF_SB_PARTMAPS(sb)[i].s_fspace. + s_table = udf_iget(sb, loc); + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_FREED_TABLE; + udf_debug + ("freedSpaceTable (part %d) @ %ld\n", + i, + UDF_SB_PARTMAPS(sb)[i].s_fspace. + s_table->i_ino); } - if (phd->freedSpaceBitmap.extLength) - { + if (phd->freedSpaceBitmap.extLength) { UDF_SB_ALLOC_BITMAP(sb, i, s_fspace); - if (UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap != NULL) - { - UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extLength = - le32_to_cpu(phd->freedSpaceBitmap.extLength); - UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extPosition = - le32_to_cpu(phd->freedSpaceBitmap.extPosition); - UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_FREED_BITMAP; - udf_debug("freedSpaceBitmap (part %d) @ %d\n", - i, UDF_SB_PARTMAPS(sb)[i].s_fspace.s_bitmap->s_extPosition); + if (UDF_SB_PARTMAPS(sb)[i].s_fspace. + s_bitmap != NULL) { + UDF_SB_PARTMAPS(sb)[i].s_fspace. + s_bitmap->s_extLength = + le32_to_cpu(phd-> + freedSpaceBitmap. + extLength); + UDF_SB_PARTMAPS(sb)[i].s_fspace. + s_bitmap->s_extPosition = + le32_to_cpu(phd-> + freedSpaceBitmap. + extPosition); + UDF_SB_PARTFLAGS(sb, i) |= + UDF_PART_FLAG_FREED_BITMAP; + udf_debug + ("freedSpaceBitmap (part %d) @ %d\n", + i, + UDF_SB_PARTMAPS(sb)[i]. + s_fspace.s_bitmap-> + s_extPosition); } } } break; } } - if (i == UDF_SB_NUMPARTS(sb)) - { - udf_debug("Partition (%d) not found in partition map\n", le16_to_cpu(p->partitionNumber)); - } - else - { - udf_debug("Partition (%d:%d type %x) starts at physical %d, block length %d\n", - le16_to_cpu(p->partitionNumber), i, UDF_SB_PARTTYPE(sb,i), - UDF_SB_PARTROOT(sb,i), UDF_SB_PARTLEN(sb,i)); + if (i == UDF_SB_NUMPARTS(sb)) { + udf_debug("Partition (%d) not found in partition map\n", + le16_to_cpu(p->partitionNumber)); + } else { + udf_debug + ("Partition (%d:%d type %x) starts at physical %d, block length %d\n", + le16_to_cpu(p->partitionNumber), i, UDF_SB_PARTTYPE(sb, i), + UDF_SB_PARTROOT(sb, i), UDF_SB_PARTLEN(sb, i)); } } -static int -udf_load_logicalvol(struct super_block *sb, struct buffer_head * bh, kernel_lb_addr *fileset) +static int +udf_load_logicalvol(struct super_block *sb, struct buffer_head *bh, + kernel_lb_addr * fileset) { struct logicalVolDesc *lvd; int i, j, offset; @@ -1032,82 +1089,114 @@ udf_load_logicalvol(struct super_block *sb, struct buffer_head * bh, kernel_lb_a UDF_SB_ALLOC_PARTMAPS(sb, le32_to_cpu(lvd->numPartitionMaps)); - for (i=0,offset=0; - i<UDF_SB_NUMPARTS(sb) && offset<le32_to_cpu(lvd->mapTableLength); - i++,offset+=((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapLength) - { - type = ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapType; - if (type == 1) - { - struct genericPartitionMap1 *gpm1 = (struct genericPartitionMap1 *)&(lvd->partitionMaps[offset]); - UDF_SB_PARTTYPE(sb,i) = UDF_TYPE1_MAP15; - UDF_SB_PARTVSN(sb,i) = le16_to_cpu(gpm1->volSeqNum); - UDF_SB_PARTNUM(sb,i) = le16_to_cpu(gpm1->partitionNum); - UDF_SB_PARTFUNC(sb,i) = NULL; - } - else if (type == 2) - { - struct udfPartitionMap2 *upm2 = (struct udfPartitionMap2 *)&(lvd->partitionMaps[offset]); - if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL, strlen(UDF_ID_VIRTUAL))) - { - if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0150) - { - UDF_SB_PARTTYPE(sb,i) = UDF_VIRTUAL_MAP15; - UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_virt15; - } - else if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0200) - { - UDF_SB_PARTTYPE(sb,i) = UDF_VIRTUAL_MAP20; - UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_virt20; + for (i = 0, offset = 0; + i < UDF_SB_NUMPARTS(sb) + && offset < le32_to_cpu(lvd->mapTableLength); + i++, offset += + ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))-> + partitionMapLength) { + type = + ((struct genericPartitionMap *) + &(lvd->partitionMaps[offset]))->partitionMapType; + if (type == 1) { + struct genericPartitionMap1 *gpm1 = + (struct genericPartitionMap1 *)&(lvd-> + partitionMaps + [offset]); + UDF_SB_PARTTYPE(sb, i) = UDF_TYPE1_MAP15; + UDF_SB_PARTVSN(sb, i) = le16_to_cpu(gpm1->volSeqNum); + UDF_SB_PARTNUM(sb, i) = le16_to_cpu(gpm1->partitionNum); + UDF_SB_PARTFUNC(sb, i) = NULL; + } else if (type == 2) { + struct udfPartitionMap2 *upm2 = + (struct udfPartitionMap2 *)&(lvd-> + partitionMaps[offset]); + if (!strncmp + (upm2->partIdent.ident, UDF_ID_VIRTUAL, + strlen(UDF_ID_VIRTUAL))) { + if (le16_to_cpu + (((__le16 *) upm2->partIdent. + identSuffix)[0]) == 0x0150) { + UDF_SB_PARTTYPE(sb, i) = + UDF_VIRTUAL_MAP15; + UDF_SB_PARTFUNC(sb, i) = + udf_get_pblock_virt15; + } else + if (le16_to_cpu + (((__le16 *) upm2->partIdent. + identSuffix)[0]) == 0x0200) { + UDF_SB_PARTTYPE(sb, i) = + UDF_VIRTUAL_MAP20; + UDF_SB_PARTFUNC(sb, i) = + udf_get_pblock_virt20; } - } - else if (!strncmp(upm2->partIdent.ident, UDF_ID_SPARABLE, strlen(UDF_ID_SPARABLE))) - { + } else + if (!strncmp + (upm2->partIdent.ident, UDF_ID_SPARABLE, + strlen(UDF_ID_SPARABLE))) { uint32_t loc; uint16_t ident; struct sparingTable *st; - struct sparablePartitionMap *spm = (struct sparablePartitionMap *)&(lvd->partitionMaps[offset]); - - UDF_SB_PARTTYPE(sb,i) = UDF_SPARABLE_MAP15; - UDF_SB_TYPESPAR(sb,i).s_packet_len = le16_to_cpu(spm->packetLength); - for (j=0; j<spm->numSparingTables; j++) - { - loc = le32_to_cpu(spm->locSparingTable[j]); - UDF_SB_TYPESPAR(sb,i).s_spar_map[j] = - udf_read_tagged(sb, loc, loc, &ident); - if (UDF_SB_TYPESPAR(sb,i).s_spar_map[j] != NULL) - { - st = (struct sparingTable *)UDF_SB_TYPESPAR(sb,i).s_spar_map[j]->b_data; - if (ident != 0 || - strncmp(st->sparingIdent.ident, UDF_ID_SPARING, strlen(UDF_ID_SPARING))) + struct sparablePartitionMap *spm = + (struct sparablePartitionMap *)&(lvd-> + partitionMaps + [offset]); + + UDF_SB_PARTTYPE(sb, i) = UDF_SPARABLE_MAP15; + UDF_SB_TYPESPAR(sb, i).s_packet_len = + le16_to_cpu(spm->packetLength); + for (j = 0; j < spm->numSparingTables; j++) { + loc = + le32_to_cpu(spm-> + locSparingTable[j]); + UDF_SB_TYPESPAR(sb, i).s_spar_map[j] = + udf_read_tagged(sb, loc, loc, + &ident); + if (UDF_SB_TYPESPAR(sb, i). + s_spar_map[j] != NULL) { + st = (struct sparingTable *) + UDF_SB_TYPESPAR(sb, + i). + s_spar_map[j]->b_data; + if (ident != 0 + || strncmp(st->sparingIdent. + ident, + UDF_ID_SPARING, + strlen + (UDF_ID_SPARING))) { - brelse(UDF_SB_TYPESPAR(sb,i).s_spar_map[j]); - UDF_SB_TYPESPAR(sb,i).s_spar_map[j] = NULL; + brelse(UDF_SB_TYPESPAR + (sb, + i). + s_spar_map[j]); + UDF_SB_TYPESPAR(sb, + i). + s_spar_map[j] = + NULL; } } } - UDF_SB_PARTFUNC(sb,i) = udf_get_pblock_spar15; - } - else - { - udf_debug("Unknown ident: %s\n", upm2->partIdent.ident); + UDF_SB_PARTFUNC(sb, i) = udf_get_pblock_spar15; + } else { + udf_debug("Unknown ident: %s\n", + upm2->partIdent.ident); continue; } - UDF_SB_PARTVSN(sb,i) = le16_to_cpu(upm2->volSeqNum); - UDF_SB_PARTNUM(sb,i) = le16_to_cpu(upm2->partitionNum); + UDF_SB_PARTVSN(sb, i) = le16_to_cpu(upm2->volSeqNum); + UDF_SB_PARTNUM(sb, i) = le16_to_cpu(upm2->partitionNum); } udf_debug("Partition (%d:%d) type %d on volume %d\n", - i, UDF_SB_PARTNUM(sb,i), type, UDF_SB_PARTVSN(sb,i)); + i, UDF_SB_PARTNUM(sb, i), type, UDF_SB_PARTVSN(sb, + i)); } - if (fileset) - { - long_ad *la = (long_ad *)&(lvd->logicalVolContentsUse[0]); + if (fileset) { + long_ad *la = (long_ad *) & (lvd->logicalVolContentsUse[0]); *fileset = lelb_to_cpu(la->extLocation); - udf_debug("FileSet found in LogicalVolDesc at block=%d, partition=%d\n", - fileset->logicalBlockNum, - fileset->partitionReferenceNum); + udf_debug + ("FileSet found in LogicalVolDesc at block=%d, partition=%d\n", + fileset->logicalBlockNum, fileset->partitionReferenceNum); } if (lvd->integritySeqExt.extLength) udf_load_logicalvolint(sb, leea_to_cpu(lvd->integritySeqExt)); @@ -1118,26 +1207,26 @@ udf_load_logicalvol(struct super_block *sb, struct buffer_head * bh, kernel_lb_a * udf_load_logicalvolint * */ -static void -udf_load_logicalvolint(struct super_block *sb, kernel_extent_ad loc) +static void udf_load_logicalvolint(struct super_block *sb, kernel_extent_ad loc) { struct buffer_head *bh = NULL; uint16_t ident; while (loc.extLength > 0 && - (bh = udf_read_tagged(sb, loc.extLocation, - loc.extLocation, &ident)) && - ident == TAG_IDENT_LVID) - { + (bh = udf_read_tagged(sb, loc.extLocation, + loc.extLocation, &ident)) && + ident == TAG_IDENT_LVID) { UDF_SB_LVIDBH(sb) = bh; - + if (UDF_SB_LVID(sb)->nextIntegrityExt.extLength) - udf_load_logicalvolint(sb, leea_to_cpu(UDF_SB_LVID(sb)->nextIntegrityExt)); - + udf_load_logicalvolint(sb, + leea_to_cpu(UDF_SB_LVID(sb)-> + nextIntegrityExt)); + if (UDF_SB_LVIDBH(sb) != bh) brelse(bh); loc.extLength -= sb->s_blocksize; - loc.extLocation ++; + loc.extLocation++; } if (UDF_SB_LVIDBH(sb) != bh) brelse(bh); @@ -1158,15 +1247,16 @@ udf_load_logicalvolint(struct super_block *sb, kernel_extent_ad loc) * July 1, 1997 - Andrew E. Mileski * Written, tested, and released. */ -static int -udf_process_sequence(struct super_block *sb, long block, long lastblock, kernel_lb_addr *fileset) +static int +udf_process_sequence(struct super_block *sb, long block, long lastblock, + kernel_lb_addr * fileset) { struct buffer_head *bh = NULL; struct udf_vds_record vds[VDS_POS_LENGTH]; struct generic_desc *gd; struct volDescPtr *vdp; - int done=0; - int i,j; + int done = 0; + int i, j; uint32_t vdsn; uint16_t ident; long next_s = 0, next_e = 0; @@ -1174,93 +1264,92 @@ udf_process_sequence(struct super_block *sb, long block, long lastblock, kernel_ memset(vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH); /* Read the main descriptor sequence */ - for (;(!done && block <= lastblock); block++) - { + for (; (!done && block <= lastblock); block++) { bh = udf_read_tagged(sb, block, block, &ident); - if (!bh) + if (!bh) break; /* Process each descriptor (ISO 13346 3/8.3-8.4) */ gd = (struct generic_desc *)bh->b_data; vdsn = le32_to_cpu(gd->volDescSeqNum); - switch (ident) - { - case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */ - if (vdsn >= vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum) - { - vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum = vdsn; - vds[VDS_POS_PRIMARY_VOL_DESC].block = block; - } - break; - case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */ - if (vdsn >= vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum) - { - vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum = vdsn; - vds[VDS_POS_VOL_DESC_PTR].block = block; - - vdp = (struct volDescPtr *)bh->b_data; - next_s = le32_to_cpu(vdp->nextVolDescSeqExt.extLocation); - next_e = le32_to_cpu(vdp->nextVolDescSeqExt.extLength); - next_e = next_e >> sb->s_blocksize_bits; - next_e += next_s; - } - break; - case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */ - if (vdsn >= vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum) - { - vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum = vdsn; - vds[VDS_POS_IMP_USE_VOL_DESC].block = block; - } - break; - case TAG_IDENT_PD: /* ISO 13346 3/10.5 */ - if (!vds[VDS_POS_PARTITION_DESC].block) - vds[VDS_POS_PARTITION_DESC].block = block; - break; - case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */ - if (vdsn >= vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum) - { - vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum = vdsn; - vds[VDS_POS_LOGICAL_VOL_DESC].block = block; - } - break; - case TAG_IDENT_USD: /* ISO 13346 3/10.8 */ - if (vdsn >= vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum) - { - vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum = vdsn; - vds[VDS_POS_UNALLOC_SPACE_DESC].block = block; - } - break; - case TAG_IDENT_TD: /* ISO 13346 3/10.9 */ - vds[VDS_POS_TERMINATING_DESC].block = block; - if (next_e) - { - block = next_s; - lastblock = next_e; - next_s = next_e = 0; - } - else - done = 1; - break; + switch (ident) { + case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */ + if (vdsn >= vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum) { + vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum = + vdsn; + vds[VDS_POS_PRIMARY_VOL_DESC].block = block; + } + break; + case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */ + if (vdsn >= vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum) { + vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum = vdsn; + vds[VDS_POS_VOL_DESC_PTR].block = block; + + vdp = (struct volDescPtr *)bh->b_data; + next_s = + le32_to_cpu(vdp->nextVolDescSeqExt. + extLocation); + next_e = + le32_to_cpu(vdp->nextVolDescSeqExt. + extLength); + next_e = next_e >> sb->s_blocksize_bits; + next_e += next_s; + } + break; + case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */ + if (vdsn >= vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum) { + vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum = + vdsn; + vds[VDS_POS_IMP_USE_VOL_DESC].block = block; + } + break; + case TAG_IDENT_PD: /* ISO 13346 3/10.5 */ + if (!vds[VDS_POS_PARTITION_DESC].block) + vds[VDS_POS_PARTITION_DESC].block = block; + break; + case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */ + if (vdsn >= vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum) { + vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum = + vdsn; + vds[VDS_POS_LOGICAL_VOL_DESC].block = block; + } + break; + case TAG_IDENT_USD: /* ISO 13346 3/10.8 */ + if (vdsn >= + vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum) { + vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum = + vdsn; + vds[VDS_POS_UNALLOC_SPACE_DESC].block = block; + } + break; + case TAG_IDENT_TD: /* ISO 13346 3/10.9 */ + vds[VDS_POS_TERMINATING_DESC].block = block; + if (next_e) { + block = next_s; + lastblock = next_e; + next_s = next_e = 0; + } else + done = 1; + break; } brelse(bh); } - for (i=0; i<VDS_POS_LENGTH; i++) - { - if (vds[i].block) - { - bh = udf_read_tagged(sb, vds[i].block, vds[i].block, &ident); + for (i = 0; i < VDS_POS_LENGTH; i++) { + if (vds[i].block) { + bh = udf_read_tagged(sb, vds[i].block, vds[i].block, + &ident); if (i == VDS_POS_PRIMARY_VOL_DESC) udf_load_pvoldesc(sb, bh); else if (i == VDS_POS_LOGICAL_VOL_DESC) udf_load_logicalvol(sb, bh, fileset); - else if (i == VDS_POS_PARTITION_DESC) - { + else if (i == VDS_POS_PARTITION_DESC) { struct buffer_head *bh2 = NULL; udf_load_partdesc(sb, bh); - for (j=vds[i].block+1; j<vds[VDS_POS_TERMINATING_DESC].block; j++) - { + for (j = vds[i].block + 1; + j < vds[VDS_POS_TERMINATING_DESC].block; + j++) { bh2 = udf_read_tagged(sb, j, j, &ident); gd = (struct generic_desc *)bh2->b_data; if (ident == TAG_IDENT_PD) @@ -1278,31 +1367,27 @@ udf_process_sequence(struct super_block *sb, long block, long lastblock, kernel_ /* * udf_check_valid() */ -static int -udf_check_valid(struct super_block *sb, int novrs, int silent) +static int udf_check_valid(struct super_block *sb, int novrs, int silent) { long block; - if (novrs) - { + if (novrs) { udf_debug("Validity check skipped because of novrs option\n"); return 0; } /* Check that it is NSR02 compliant */ /* Process any "CD-ROM Volume Descriptor Set" (ECMA 167 2/8.3.1) */ - else if ((block = udf_vrs(sb, silent)) == -1) - { - udf_debug("Failed to read byte 32768. Assuming open disc. Skipping validity check\n"); + else if ((block = udf_vrs(sb, silent)) == -1) { + udf_debug + ("Failed to read byte 32768. Assuming open disc. Skipping validity check\n"); if (!UDF_SB_LASTBLOCK(sb)) UDF_SB_LASTBLOCK(sb) = udf_get_last_block(sb); return 0; - } - else + } else return !block; } -static int -udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset) +static int udf_load_partition(struct super_block *sb, kernel_lb_addr * fileset) { struct anchorVolDescPtr *anchor; uint16_t ident; @@ -1315,19 +1400,27 @@ udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset) for (i = 0; i < ARRAY_SIZE(UDF_SB_ANCHOR(sb)); i++) { if (UDF_SB_ANCHOR(sb)[i] && (bh = udf_read_tagged(sb, - UDF_SB_ANCHOR(sb)[i], UDF_SB_ANCHOR(sb)[i], &ident))) - { + UDF_SB_ANCHOR + (sb)[i], + UDF_SB_ANCHOR + (sb)[i], + &ident))) { anchor = (struct anchorVolDescPtr *)bh->b_data; /* Locate the main sequence */ - main_s = le32_to_cpu( anchor->mainVolDescSeqExt.extLocation ); - main_e = le32_to_cpu( anchor->mainVolDescSeqExt.extLength ); + main_s = + le32_to_cpu(anchor->mainVolDescSeqExt.extLocation); + main_e = + le32_to_cpu(anchor->mainVolDescSeqExt.extLength); main_e = main_e >> sb->s_blocksize_bits; main_e += main_s; /* Locate the reserve sequence */ - reserve_s = le32_to_cpu(anchor->reserveVolDescSeqExt.extLocation); - reserve_e = le32_to_cpu(anchor->reserveVolDescSeqExt.extLength); + reserve_s = + le32_to_cpu(anchor->reserveVolDescSeqExt. + extLocation); + reserve_e = + le32_to_cpu(anchor->reserveVolDescSeqExt.extLength); reserve_e = reserve_e >> sb->s_blocksize_bits; reserve_e += reserve_s; @@ -1335,9 +1428,10 @@ udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset) /* Process the main & reserve sequences */ /* responsible for finding the PartitionDesc(s) */ - if (!(udf_process_sequence(sb, main_s, main_e, fileset) && - udf_process_sequence(sb, reserve_s, reserve_e, fileset))) - { + if (! + (udf_process_sequence(sb, main_s, main_e, fileset) + && udf_process_sequence(sb, reserve_s, reserve_e, + fileset))) { break; } } @@ -1349,36 +1443,37 @@ udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset) } else udf_debug("Using anchor in block %d\n", UDF_SB_ANCHOR(sb)[i]); - for (i=0; i<UDF_SB_NUMPARTS(sb); i++) - { - switch (UDF_SB_PARTTYPE(sb, i)) - { - case UDF_VIRTUAL_MAP15: - case UDF_VIRTUAL_MAP20: + for (i = 0; i < UDF_SB_NUMPARTS(sb); i++) { + switch (UDF_SB_PARTTYPE(sb, i)) { + case UDF_VIRTUAL_MAP15: + case UDF_VIRTUAL_MAP20: { - kernel_lb_addr ino; + kernel_lb_addr uninitialized_var(ino); - if (!UDF_SB_LASTBLOCK(sb)) - { - UDF_SB_LASTBLOCK(sb) = udf_get_last_block(sb); + if (!UDF_SB_LASTBLOCK(sb)) { + UDF_SB_LASTBLOCK(sb) = + udf_get_last_block(sb); udf_find_anchor(sb); } - if (!UDF_SB_LASTBLOCK(sb)) - { - udf_debug("Unable to determine Lastblock (For Virtual Partition)\n"); + if (!UDF_SB_LASTBLOCK(sb)) { + udf_debug + ("Unable to determine Lastblock (For Virtual Partition)\n"); return 1; } - for (j=0; j<UDF_SB_NUMPARTS(sb); j++) - { + for (j = 0; j < UDF_SB_NUMPARTS(sb); j++) { if (j != i && - UDF_SB_PARTVSN(sb,i) == UDF_SB_PARTVSN(sb,j) && - UDF_SB_PARTNUM(sb,i) == UDF_SB_PARTNUM(sb,j)) - { + UDF_SB_PARTVSN(sb, + i) == + UDF_SB_PARTVSN(sb, j) + && UDF_SB_PARTNUM(sb, + i) == + UDF_SB_PARTNUM(sb, j)) { ino.partitionReferenceNum = j; - ino.logicalBlockNum = UDF_SB_LASTBLOCK(sb) - - UDF_SB_PARTROOT(sb,j); + ino.logicalBlockNum = + UDF_SB_LASTBLOCK(sb) - + UDF_SB_PARTROOT(sb, j); break; } } @@ -1389,13 +1484,13 @@ udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset) if (!(UDF_SB_VAT(sb) = udf_iget(sb, ino))) return 1; - if (UDF_SB_PARTTYPE(sb,i) == UDF_VIRTUAL_MAP15) - { - UDF_SB_TYPEVIRT(sb,i).s_start_offset = udf_ext0_offset(UDF_SB_VAT(sb)); - UDF_SB_TYPEVIRT(sb,i).s_num_entries = (UDF_SB_VAT(sb)->i_size - 36) >> 2; - } - else if (UDF_SB_PARTTYPE(sb,i) == UDF_VIRTUAL_MAP20) - { + if (UDF_SB_PARTTYPE(sb, i) == UDF_VIRTUAL_MAP15) { + UDF_SB_TYPEVIRT(sb, i).s_start_offset = + udf_ext0_offset(UDF_SB_VAT(sb)); + UDF_SB_TYPEVIRT(sb, i).s_num_entries = + (UDF_SB_VAT(sb)->i_size - 36) >> 2; + } else if (UDF_SB_PARTTYPE(sb, i) == + UDF_VIRTUAL_MAP20) { struct buffer_head *bh = NULL; uint32_t pos; @@ -1403,15 +1498,26 @@ udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset) bh = sb_bread(sb, pos); if (!bh) return 1; - UDF_SB_TYPEVIRT(sb,i).s_start_offset = - le16_to_cpu(((struct virtualAllocationTable20 *)bh->b_data + udf_ext0_offset(UDF_SB_VAT(sb)))->lengthHeader) + - udf_ext0_offset(UDF_SB_VAT(sb)); - UDF_SB_TYPEVIRT(sb,i).s_num_entries = (UDF_SB_VAT(sb)->i_size - - UDF_SB_TYPEVIRT(sb,i).s_start_offset) >> 2; + UDF_SB_TYPEVIRT(sb, i).s_start_offset = + le16_to_cpu(((struct + virtualAllocationTable20 + *)bh->b_data + + udf_ext0_offset + (UDF_SB_VAT(sb)))-> + lengthHeader) + + udf_ext0_offset(UDF_SB_VAT(sb)); + UDF_SB_TYPEVIRT(sb, i).s_num_entries = + (UDF_SB_VAT(sb)->i_size - + UDF_SB_TYPEVIRT(sb, + i). + s_start_offset) >> 2; brelse(bh); } - UDF_SB_PARTROOT(sb,i) = udf_get_pblock(sb, 0, i, 0); - UDF_SB_PARTLEN(sb,i) = UDF_SB_PARTLEN(sb,ino.partitionReferenceNum); + UDF_SB_PARTROOT(sb, i) = + udf_get_pblock(sb, 0, i, 0); + UDF_SB_PARTLEN(sb, i) = + UDF_SB_PARTLEN(sb, + ino.partitionReferenceNum); } } } @@ -1420,26 +1526,28 @@ udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset) static void udf_open_lvid(struct super_block *sb) { - if (UDF_SB_LVIDBH(sb)) - { + if (UDF_SB_LVIDBH(sb)) { int i; kernel_timestamp cpu_time; UDF_SB_LVIDIU(sb)->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX; UDF_SB_LVIDIU(sb)->impIdent.identSuffix[1] = UDF_OS_ID_LINUX; if (udf_time_to_stamp(&cpu_time, CURRENT_TIME)) - UDF_SB_LVID(sb)->recordingDateAndTime = cpu_to_lets(cpu_time); + UDF_SB_LVID(sb)->recordingDateAndTime = + cpu_to_lets(cpu_time); UDF_SB_LVID(sb)->integrityType = LVID_INTEGRITY_TYPE_OPEN; UDF_SB_LVID(sb)->descTag.descCRC = - cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag), - le16_to_cpu(UDF_SB_LVID(sb)->descTag.descCRCLength), 0)); + cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag), + le16_to_cpu(UDF_SB_LVID(sb)->descTag. + descCRCLength), 0)); UDF_SB_LVID(sb)->descTag.tagChecksum = 0; - for (i=0; i<16; i++) + for (i = 0; i < 16; i++) if (i != 4) UDF_SB_LVID(sb)->descTag.tagChecksum += - ((uint8_t *)&(UDF_SB_LVID(sb)->descTag))[i]; + ((uint8_t *) & + (UDF_SB_LVID(sb)->descTag))[i]; mark_buffer_dirty(UDF_SB_LVIDBH(sb)); } @@ -1448,32 +1556,41 @@ static void udf_open_lvid(struct super_block *sb) static void udf_close_lvid(struct super_block *sb) { if (UDF_SB_LVIDBH(sb) && - UDF_SB_LVID(sb)->integrityType == LVID_INTEGRITY_TYPE_OPEN) - { + UDF_SB_LVID(sb)->integrityType == LVID_INTEGRITY_TYPE_OPEN) { int i; kernel_timestamp cpu_time; UDF_SB_LVIDIU(sb)->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX; UDF_SB_LVIDIU(sb)->impIdent.identSuffix[1] = UDF_OS_ID_LINUX; if (udf_time_to_stamp(&cpu_time, CURRENT_TIME)) - UDF_SB_LVID(sb)->recordingDateAndTime = cpu_to_lets(cpu_time); - if (UDF_MAX_WRITE_VERSION > le16_to_cpu(UDF_SB_LVIDIU(sb)->maxUDFWriteRev)) - UDF_SB_LVIDIU(sb)->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION); - if (UDF_SB_UDFREV(sb) > le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev)) - UDF_SB_LVIDIU(sb)->minUDFReadRev = cpu_to_le16(UDF_SB_UDFREV(sb)); - if (UDF_SB_UDFREV(sb) > le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev)) - UDF_SB_LVIDIU(sb)->minUDFWriteRev = cpu_to_le16(UDF_SB_UDFREV(sb)); - UDF_SB_LVID(sb)->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE); + UDF_SB_LVID(sb)->recordingDateAndTime = + cpu_to_lets(cpu_time); + if (UDF_MAX_WRITE_VERSION > + le16_to_cpu(UDF_SB_LVIDIU(sb)->maxUDFWriteRev)) + UDF_SB_LVIDIU(sb)->maxUDFWriteRev = + cpu_to_le16(UDF_MAX_WRITE_VERSION); + if (UDF_SB_UDFREV(sb) > + le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev)) + UDF_SB_LVIDIU(sb)->minUDFReadRev = + cpu_to_le16(UDF_SB_UDFREV(sb)); + if (UDF_SB_UDFREV(sb) > + le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev)) + UDF_SB_LVIDIU(sb)->minUDFWriteRev = + cpu_to_le16(UDF_SB_UDFREV(sb)); + UDF_SB_LVID(sb)->integrityType = + cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE); UDF_SB_LVID(sb)->descTag.descCRC = - cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag), - le16_to_cpu(UDF_SB_LVID(sb)->descTag.descCRCLength), 0)); + cpu_to_le16(udf_crc((char *)UDF_SB_LVID(sb) + sizeof(tag), + le16_to_cpu(UDF_SB_LVID(sb)->descTag. + descCRCLength), 0)); UDF_SB_LVID(sb)->descTag.tagChecksum = 0; - for (i=0; i<16; i++) + for (i = 0; i < 16; i++) if (i != 4) UDF_SB_LVID(sb)->descTag.tagChecksum += - ((uint8_t *)&(UDF_SB_LVID(sb)->descTag))[i]; + ((uint8_t *) & + (UDF_SB_LVID(sb)->descTag))[i]; mark_buffer_dirty(UDF_SB_LVIDBH(sb)); } @@ -1498,7 +1615,7 @@ static void udf_close_lvid(struct super_block *sb) static int udf_fill_super(struct super_block *sb, void *options, int silent) { int i; - struct inode *inode=NULL; + struct inode *inode = NULL; struct udf_options uopt; kernel_lb_addr rootdir, fileset; struct udf_sb_info *sbi; @@ -1520,15 +1637,13 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) goto error_out; if (uopt.flags & (1 << UDF_FLAG_UTF8) && - uopt.flags & (1 << UDF_FLAG_NLS_MAP)) - { + uopt.flags & (1 << UDF_FLAG_NLS_MAP)) { udf_error(sb, "udf_read_super", - "utf8 cannot be combined with iocharset\n"); + "utf8 cannot be combined with iocharset\n"); goto error_out; } #ifdef CONFIG_UDF_NLS - if ((uopt.flags & (1 << UDF_FLAG_NLS_MAP)) && !uopt.nls_map) - { + if ((uopt.flags & (1 << UDF_FLAG_NLS_MAP)) && !uopt.nls_map) { uopt.nls_map = load_nls_default(); if (!uopt.nls_map) uopt.flags &= ~(1 << UDF_FLAG_NLS_MAP); @@ -1552,7 +1667,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) if (!udf_set_blocksize(sb, uopt.blocksize)) goto error_out; - if ( uopt.session == 0xFFFFFFFF ) + if (uopt.session == 0xFFFFFFFF) UDF_SB_SESSION(sb) = udf_get_last_session(sb); else UDF_SB_SESSION(sb) = uopt.session; @@ -1564,10 +1679,9 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) UDF_SB_ANCHOR(sb)[2] = uopt.anchor; UDF_SB_ANCHOR(sb)[3] = 256; - if (udf_check_valid(sb, uopt.novrs, silent)) /* read volume recognition sequences */ - { + if (udf_check_valid(sb, uopt.novrs, silent)) { /* read volume recognition sequences */ printk("UDF-fs: No VRS found\n"); - goto error_out; + goto error_out; } udf_find_anchor(sb); @@ -1579,29 +1693,26 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) sb->s_magic = UDF_SUPER_MAGIC; sb->s_time_gran = 1000; - if (udf_load_partition(sb, &fileset)) - { + if (udf_load_partition(sb, &fileset)) { printk("UDF-fs: No partition found (1)\n"); goto error_out; } udf_debug("Lastblock=%d\n", UDF_SB_LASTBLOCK(sb)); - if ( UDF_SB_LVIDBH(sb) ) - { - uint16_t minUDFReadRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev); - uint16_t minUDFWriteRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev); + if (UDF_SB_LVIDBH(sb)) { + uint16_t minUDFReadRev = + le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev); + uint16_t minUDFWriteRev = + le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFWriteRev); /* uint16_t maxUDFWriteRev = le16_to_cpu(UDF_SB_LVIDIU(sb)->maxUDFWriteRev); */ - if (minUDFReadRev > UDF_MAX_READ_VERSION) - { + if (minUDFReadRev > UDF_MAX_READ_VERSION) { printk("UDF-fs: minUDFReadRev=%x (max is %x)\n", - le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev), - UDF_MAX_READ_VERSION); + le16_to_cpu(UDF_SB_LVIDIU(sb)->minUDFReadRev), + UDF_MAX_READ_VERSION); goto error_out; - } - else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION) - { + } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION) { sb->s_flags |= MS_RDONLY; } @@ -1613,31 +1724,30 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) UDF_SET_FLAG(sb, UDF_FLAG_USE_STREAMS); } - if ( !UDF_SB_NUMPARTS(sb) ) - { + if (!UDF_SB_NUMPARTS(sb)) { printk("UDF-fs: No partition found (2)\n"); goto error_out; } - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_READ_ONLY) { - printk("UDF-fs: Partition marked readonly; forcing readonly mount\n"); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_READ_ONLY) { + printk + ("UDF-fs: Partition marked readonly; forcing readonly mount\n"); sb->s_flags |= MS_RDONLY; } - if ( udf_find_fileset(sb, &fileset, &rootdir) ) - { + if (udf_find_fileset(sb, &fileset, &rootdir)) { printk("UDF-fs: No fileset found\n"); goto error_out; } - if (!silent) - { + if (!silent) { kernel_timestamp ts; udf_time_to_stamp(&ts, UDF_SB_RECORDTIME(sb)); - udf_info("UDF %s (%s) Mounting volume '%s', timestamp %04u/%02u/%02u %02u:%02u (%x)\n", - UDFFS_VERSION, UDFFS_DATE, - UDF_SB_VOLIDENT(sb), ts.year, ts.month, ts.day, ts.hour, ts.minute, - ts.typeAndTimezone); + udf_info + ("UDF %s (%s) Mounting volume '%s', timestamp %04u/%02u/%02u %02u:%02u (%x)\n", + UDFFS_VERSION, UDFFS_DATE, UDF_SB_VOLIDENT(sb), ts.year, + ts.month, ts.day, ts.hour, ts.minute, ts.typeAndTimezone); } if (!(sb->s_flags & MS_RDONLY)) udf_open_lvid(sb); @@ -1645,18 +1755,16 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) /* Assign the root inode */ /* assign inodes by physical block number */ /* perhaps it's not extensible enough, but for now ... */ - inode = udf_iget(sb, rootdir); - if (!inode) - { + inode = udf_iget(sb, rootdir); + if (!inode) { printk("UDF-fs: Error in udf_iget, block=%d, partition=%d\n", - rootdir.logicalBlockNum, rootdir.partitionReferenceNum); + rootdir.logicalBlockNum, rootdir.partitionReferenceNum); goto error_out; } /* Allocate a dentry for the root inode */ sb->s_root = d_alloc_root(inode); - if (!sb->s_root) - { + if (!sb->s_root) { printk("UDF-fs: Couldn't allocate root dentry\n"); iput(inode); goto error_out; @@ -1664,23 +1772,30 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) sb->s_maxbytes = MAX_LFS_FILESIZE; return 0; -error_out: + error_out: if (UDF_SB_VAT(sb)) iput(UDF_SB_VAT(sb)); - if (UDF_SB_NUMPARTS(sb)) - { - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE) - iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table); - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE) - iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table); - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP) - UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb),s_uspace); - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP) - UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb),s_fspace); - if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == UDF_SPARABLE_MAP15) - { - for (i=0; i<4; i++) - brelse(UDF_SB_TYPESPAR(sb, UDF_SB_PARTITION(sb)).s_spar_map[i]); + if (UDF_SB_NUMPARTS(sb)) { + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_UNALLOC_TABLE) + iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace. + s_table); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_FREED_TABLE) + iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace. + s_table); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_UNALLOC_BITMAP) + UDF_SB_FREE_BITMAP(sb, UDF_SB_PARTITION(sb), s_uspace); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_FREED_BITMAP) + UDF_SB_FREE_BITMAP(sb, UDF_SB_PARTITION(sb), s_fspace); + if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == + UDF_SPARABLE_MAP15) { + for (i = 0; i < 4; i++) + brelse(UDF_SB_TYPESPAR + (sb, + UDF_SB_PARTITION(sb)).s_spar_map[i]); } } #ifdef CONFIG_UDF_NLS @@ -1697,32 +1812,31 @@ error_out: } void udf_error(struct super_block *sb, const char *function, - const char *fmt, ...) + const char *fmt, ...) { va_list args; - if (!(sb->s_flags & MS_RDONLY)) - { + if (!(sb->s_flags & MS_RDONLY)) { /* mark sb error */ sb->s_dirt = 1; } va_start(args, fmt); vsnprintf(error_buf, sizeof(error_buf), fmt, args); va_end(args); - printk (KERN_CRIT "UDF-fs error (device %s): %s: %s\n", - sb->s_id, function, error_buf); + printk(KERN_CRIT "UDF-fs error (device %s): %s: %s\n", + sb->s_id, function, error_buf); } void udf_warning(struct super_block *sb, const char *function, - const char *fmt, ...) + const char *fmt, ...) { va_list args; - va_start (args, fmt); + va_start(args, fmt); vsnprintf(error_buf, sizeof(error_buf), fmt, args); va_end(args); printk(KERN_WARNING "UDF-fs warning (device %s): %s: %s\n", - sb->s_id, function, error_buf); + sb->s_id, function, error_buf); } /* @@ -1738,27 +1852,33 @@ void udf_warning(struct super_block *sb, const char *function, * July 1, 1997 - Andrew E. Mileski * Written, tested, and released. */ -static void -udf_put_super(struct super_block *sb) +static void udf_put_super(struct super_block *sb) { int i; if (UDF_SB_VAT(sb)) iput(UDF_SB_VAT(sb)); - if (UDF_SB_NUMPARTS(sb)) - { - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE) - iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table); - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE) - iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table); - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP) - UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb),s_uspace); - if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP) - UDF_SB_FREE_BITMAP(sb,UDF_SB_PARTITION(sb),s_fspace); - if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == UDF_SPARABLE_MAP15) - { - for (i=0; i<4; i++) - brelse(UDF_SB_TYPESPAR(sb, UDF_SB_PARTITION(sb)).s_spar_map[i]); + if (UDF_SB_NUMPARTS(sb)) { + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_UNALLOC_TABLE) + iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace. + s_table); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_FREED_TABLE) + iput(UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace. + s_table); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_UNALLOC_BITMAP) + UDF_SB_FREE_BITMAP(sb, UDF_SB_PARTITION(sb), s_uspace); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_FREED_BITMAP) + UDF_SB_FREE_BITMAP(sb, UDF_SB_PARTITION(sb), s_fspace); + if (UDF_SB_PARTTYPE(sb, UDF_SB_PARTITION(sb)) == + UDF_SPARABLE_MAP15) { + for (i = 0; i < 4; i++) + brelse(UDF_SB_TYPESPAR + (sb, + UDF_SB_PARTITION(sb)).s_spar_map[i]); } } #ifdef CONFIG_UDF_NLS @@ -1786,8 +1906,7 @@ udf_put_super(struct super_block *sb) * July 1, 1997 - Andrew E. Mileski * Written, tested, and released. */ -static int -udf_statfs(struct dentry *dentry, struct kstatfs *buf) +static int udf_statfs(struct dentry *dentry, struct kstatfs *buf) { struct super_block *sb = dentry->d_sb; @@ -1797,11 +1916,12 @@ udf_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_bfree = udf_count_free(sb); buf->f_bavail = buf->f_bfree; buf->f_files = (UDF_SB_LVIDBH(sb) ? - (le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + - le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs)) : 0) + buf->f_bfree; + (le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + + le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs)) : 0) + + buf->f_bfree; buf->f_ffree = buf->f_bfree; /* __kernel_fsid_t f_fsid */ - buf->f_namelen = UDF_NAME_LEN-2; + buf->f_namelen = UDF_NAME_LEN - 2; return 0; } @@ -1830,13 +1950,10 @@ udf_count_free_bitmap(struct super_block *sb, struct udf_bitmap *bitmap) loc.partitionReferenceNum = UDF_SB_PARTITION(sb); bh = udf_read_ptagged(sb, loc, 0, &ident); - if (!bh) - { + if (!bh) { printk(KERN_ERR "udf: udf_count_free failed\n"); goto out; - } - else if (ident != TAG_IDENT_SBD) - { + } else if (ident != TAG_IDENT_SBD) { brelse(bh); printk(KERN_ERR "udf: udf_count_free failed\n"); goto out; @@ -1844,43 +1961,39 @@ udf_count_free_bitmap(struct super_block *sb, struct udf_bitmap *bitmap) bm = (struct spaceBitmapDesc *)bh->b_data; bytes = le32_to_cpu(bm->numOfBytes); - index = sizeof(struct spaceBitmapDesc); /* offset in first block only */ - ptr = (uint8_t *)bh->b_data; + index = sizeof(struct spaceBitmapDesc); /* offset in first block only */ + ptr = (uint8_t *) bh->b_data; - while ( bytes > 0 ) - { - while ((bytes > 0) && (index < sb->s_blocksize)) - { + while (bytes > 0) { + while ((bytes > 0) && (index < sb->s_blocksize)) { value = ptr[index]; - accum += udf_bitmap_lookup[ value & 0x0f ]; - accum += udf_bitmap_lookup[ value >> 4 ]; + accum += udf_bitmap_lookup[value & 0x0f]; + accum += udf_bitmap_lookup[value >> 4]; index++; bytes--; } - if ( bytes ) - { + if (bytes) { brelse(bh); newblock = udf_get_lb_pblock(sb, loc, ++block); bh = udf_tread(sb, newblock); - if (!bh) - { + if (!bh) { udf_debug("read failed\n"); goto out; } index = 0; - ptr = (uint8_t *)bh->b_data; + ptr = (uint8_t *) bh->b_data; } } brelse(bh); -out: + out: unlock_kernel(); return accum; } static unsigned int -udf_count_free_table(struct super_block *sb, struct inode * table) +udf_count_free_table(struct super_block *sb, struct inode *table) { unsigned int accum = 0; uint32_t elen; @@ -1902,17 +2015,17 @@ udf_count_free_table(struct super_block *sb, struct inode * table) return accum; } - -static unsigned int -udf_count_free(struct super_block *sb) + +static unsigned int udf_count_free(struct super_block *sb) { unsigned int accum = 0; - if (UDF_SB_LVIDBH(sb)) - { - if (le32_to_cpu(UDF_SB_LVID(sb)->numOfPartitions) > UDF_SB_PARTITION(sb)) - { - accum = le32_to_cpu(UDF_SB_LVID(sb)->freeSpaceTable[UDF_SB_PARTITION(sb)]); + if (UDF_SB_LVIDBH(sb)) { + if (le32_to_cpu(UDF_SB_LVID(sb)->numOfPartitions) > + UDF_SB_PARTITION(sb)) { + accum = + le32_to_cpu(UDF_SB_LVID(sb)-> + freeSpaceTable[UDF_SB_PARTITION(sb)]); if (accum == 0xFFFFFFFF) accum = 0; @@ -1922,28 +2035,40 @@ udf_count_free(struct super_block *sb) if (accum) return accum; - if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_BITMAP) - { - accum += udf_count_free_bitmap(sb, - UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_bitmap); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_UNALLOC_BITMAP) { + accum += + udf_count_free_bitmap(sb, + UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION + (sb)].s_uspace. + s_bitmap); } - if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_BITMAP) - { - accum += udf_count_free_bitmap(sb, - UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_bitmap); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_FREED_BITMAP) { + accum += + udf_count_free_bitmap(sb, + UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION + (sb)].s_fspace. + s_bitmap); } if (accum) return accum; - if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_UNALLOC_TABLE) - { - accum += udf_count_free_table(sb, - UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_uspace.s_table); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_UNALLOC_TABLE) { + accum += + udf_count_free_table(sb, + UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION + (sb)].s_uspace. + s_table); } - if (UDF_SB_PARTFLAGS(sb,UDF_SB_PARTITION(sb)) & UDF_PART_FLAG_FREED_TABLE) - { - accum += udf_count_free_table(sb, - UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION(sb)].s_fspace.s_table); + if (UDF_SB_PARTFLAGS(sb, UDF_SB_PARTITION(sb)) & + UDF_PART_FLAG_FREED_TABLE) { + accum += + udf_count_free_table(sb, + UDF_SB_PARTMAPS(sb)[UDF_SB_PARTITION + (sb)].s_fspace. + s_table); } return accum; diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c index 12613b680cc4..c4b82a920082 100644 --- a/fs/udf/symlink.c +++ b/fs/udf/symlink.c @@ -33,41 +33,40 @@ #include <linux/buffer_head.h> #include "udf_i.h" -static void udf_pc_to_char(struct super_block *sb, char *from, int fromlen, char *to) +static void udf_pc_to_char(struct super_block *sb, char *from, int fromlen, + char *to) { struct pathComponent *pc; int elen = 0; char *p = to; - while (elen < fromlen) - { + while (elen < fromlen) { pc = (struct pathComponent *)(from + elen); - switch (pc->componentType) - { - case 1: - if (pc->lengthComponentIdent == 0) - { - p = to; - *p++ = '/'; - } - break; - case 3: - memcpy(p, "../", 3); - p += 3; - break; - case 4: - memcpy(p, "./", 2); - p += 2; - /* that would be . - just ignore */ - break; - case 5: - p += udf_get_filename(sb, pc->componentIdent, p, pc->lengthComponentIdent); + switch (pc->componentType) { + case 1: + if (pc->lengthComponentIdent == 0) { + p = to; *p++ = '/'; - break; + } + break; + case 3: + memcpy(p, "../", 3); + p += 3; + break; + case 4: + memcpy(p, "./", 2); + p += 2; + /* that would be . - just ignore */ + break; + case 5: + p += udf_get_filename(sb, pc->componentIdent, p, + pc->lengthComponentIdent); + *p++ = '/'; + break; } elen += sizeof(struct pathComponent) + pc->lengthComponentIdent; } - if (p > to+1) + if (p > to + 1) p[-1] = '\0'; else p[0] = '\0'; @@ -84,8 +83,7 @@ static int udf_symlink_filler(struct file *file, struct page *page) lock_kernel(); if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB) symlink = UDF_I_DATA(inode) + UDF_I_LENEATTR(inode); - else - { + else { bh = sb_bread(inode->i_sb, udf_block_map(inode, 0)); if (!bh) @@ -102,7 +100,7 @@ static int udf_symlink_filler(struct file *file, struct page *page) kunmap(page); unlock_page(page); return 0; -out: + out: unlock_kernel(); SetPageError(page); kunmap(page); @@ -114,5 +112,5 @@ out: * symlinks can't do much... */ const struct address_space_operations udf_symlink_aops = { - .readpage = udf_symlink_filler, + .readpage = udf_symlink_filler, }; diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c index 60d277644248..b2002da0a5c0 100644 --- a/fs/udf/truncate.c +++ b/fs/udf/truncate.c @@ -28,35 +28,38 @@ #include "udf_i.h" #include "udf_sb.h" -static void extent_trunc(struct inode * inode, struct extent_position *epos, - kernel_lb_addr eloc, int8_t etype, uint32_t elen, uint32_t nelen) +static void extent_trunc(struct inode *inode, struct extent_position *epos, + kernel_lb_addr eloc, int8_t etype, uint32_t elen, + uint32_t nelen) { kernel_lb_addr neloc = { 0, 0 }; - int last_block = (elen + inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits; - int first_block = (nelen + inode->i_sb->s_blocksize - 1) >> inode->i_sb->s_blocksize_bits; + int last_block = + (elen + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits; + int first_block = + (nelen + inode->i_sb->s_blocksize - + 1) >> inode->i_sb->s_blocksize_bits; - if (nelen) - { - if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) - { - udf_free_blocks(inode->i_sb, inode, eloc, 0, last_block); + if (nelen) { + if (etype == (EXT_NOT_RECORDED_ALLOCATED >> 30)) { + udf_free_blocks(inode->i_sb, inode, eloc, 0, + last_block); etype = (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30); - } - else + } else neloc = eloc; nelen = (etype << 30) | nelen; } - if (elen != nelen) - { + if (elen != nelen) { udf_write_aext(inode, epos, neloc, nelen, 0); - if (last_block - first_block > 0) - { + if (last_block - first_block > 0) { if (etype == (EXT_RECORDED_ALLOCATED >> 30)) mark_inode_dirty(inode); if (etype != (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30)) - udf_free_blocks(inode->i_sb, inode, eloc, first_block, last_block - first_block); + udf_free_blocks(inode->i_sb, inode, eloc, + first_block, + last_block - first_block); } } } @@ -67,7 +70,7 @@ static void extent_trunc(struct inode * inode, struct extent_position *epos, */ void udf_truncate_tail_extent(struct inode *inode) { - struct extent_position epos = { NULL, 0, {0, 0}}; + struct extent_position epos = { NULL, 0, {0, 0} }; kernel_lb_addr eloc; uint32_t elen, nelen; uint64_t lbcount = 0; @@ -89,8 +92,7 @@ void udf_truncate_tail_extent(struct inode *inode) BUG(); /* Find the last extent in the file */ - while ((netype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) - { + while ((netype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) { etype = netype; lbcount += elen; if (lbcount > inode->i_size) { @@ -123,7 +125,7 @@ void udf_truncate_tail_extent(struct inode *inode) void udf_discard_prealloc(struct inode *inode) { - struct extent_position epos = { NULL, 0, {0, 0}}; + struct extent_position epos = { NULL, 0, {0, 0} }; kernel_lb_addr eloc; uint32_t elen; uint64_t lbcount = 0; @@ -131,7 +133,7 @@ void udf_discard_prealloc(struct inode *inode) int adsize; if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB || - inode->i_size == UDF_I_LENEXTENTS(inode)) + inode->i_size == UDF_I_LENEXTENTS(inode)) return; if (UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_SHORT) @@ -153,15 +155,21 @@ void udf_discard_prealloc(struct inode *inode) lbcount -= elen; extent_trunc(inode, &epos, eloc, etype, elen, 0); if (!epos.bh) { - UDF_I_LENALLOC(inode) = epos.offset - udf_file_entry_alloc_offset(inode); + UDF_I_LENALLOC(inode) = + epos.offset - udf_file_entry_alloc_offset(inode); mark_inode_dirty(inode); } else { - struct allocExtDesc *aed = (struct allocExtDesc *)(epos.bh->b_data); - aed->lengthAllocDescs = cpu_to_le32(epos.offset - sizeof(struct allocExtDesc)); - if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) + struct allocExtDesc *aed = + (struct allocExtDesc *)(epos.bh->b_data); + aed->lengthAllocDescs = + cpu_to_le32(epos.offset - + sizeof(struct allocExtDesc)); + if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(inode->i_sb) >= 0x0201) udf_update_tag(epos.bh->b_data, epos.offset); else - udf_update_tag(epos.bh->b_data, sizeof(struct allocExtDesc)); + udf_update_tag(epos.bh->b_data, + sizeof(struct allocExtDesc)); mark_buffer_dirty_inode(epos.bh, inode); } } @@ -171,7 +179,7 @@ void udf_discard_prealloc(struct inode *inode) brelse(epos.bh); } -void udf_truncate_extents(struct inode * inode) +void udf_truncate_extents(struct inode *inode) { struct extent_position epos; kernel_lb_addr eloc, neloc = { 0, 0 }; @@ -190,9 +198,10 @@ void udf_truncate_extents(struct inode * inode) BUG(); etype = inode_bmap(inode, first_block, &epos, &eloc, &elen, &offset); - byte_offset = (offset << sb->s_blocksize_bits) + (inode->i_size & (sb->s_blocksize-1)); - if (etype != -1) - { + byte_offset = + (offset << sb->s_blocksize_bits) + + (inode->i_size & (sb->s_blocksize - 1)); + if (etype != -1) { epos.offset -= adsize; extent_trunc(inode, &epos, eloc, etype, elen, byte_offset); epos.offset += adsize; @@ -206,86 +215,98 @@ void udf_truncate_extents(struct inode * inode) else lenalloc -= sizeof(struct allocExtDesc); - while ((etype = udf_current_aext(inode, &epos, &eloc, &elen, 0)) != -1) - { - if (etype == (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) - { + while ((etype = + udf_current_aext(inode, &epos, &eloc, &elen, + 0)) != -1) { + if (etype == (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) { udf_write_aext(inode, &epos, neloc, nelen, 0); - if (indirect_ext_len) - { + if (indirect_ext_len) { /* We managed to free all extents in the * indirect extent - free it too */ if (!epos.bh) BUG(); - udf_free_blocks(sb, inode, epos.block, 0, indirect_ext_len); - } - else - { - if (!epos.bh) - { - UDF_I_LENALLOC(inode) = lenalloc; + udf_free_blocks(sb, inode, epos.block, + 0, indirect_ext_len); + } else { + if (!epos.bh) { + UDF_I_LENALLOC(inode) = + lenalloc; mark_inode_dirty(inode); - } - else - { - struct allocExtDesc *aed = (struct allocExtDesc *)(epos.bh->b_data); - aed->lengthAllocDescs = cpu_to_le32(lenalloc); - if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(sb) >= 0x0201) - udf_update_tag(epos.bh->b_data, lenalloc + - sizeof(struct allocExtDesc)); + } else { + struct allocExtDesc *aed = + (struct allocExtDesc + *)(epos.bh->b_data); + aed->lengthAllocDescs = + cpu_to_le32(lenalloc); + if (!UDF_QUERY_FLAG + (sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(sb) >= + 0x0201) + udf_update_tag(epos.bh-> + b_data, + lenalloc + + + sizeof + (struct + allocExtDesc)); else - udf_update_tag(epos.bh->b_data, sizeof(struct allocExtDesc)); - mark_buffer_dirty_inode(epos.bh, inode); + udf_update_tag(epos.bh-> + b_data, + sizeof + (struct + allocExtDesc)); + mark_buffer_dirty_inode(epos.bh, + inode); } } brelse(epos.bh); epos.offset = sizeof(struct allocExtDesc); epos.block = eloc; - epos.bh = udf_tread(sb, udf_get_lb_pblock(sb, eloc, 0)); + epos.bh = + udf_tread(sb, + udf_get_lb_pblock(sb, eloc, 0)); if (elen) indirect_ext_len = (elen + - sb->s_blocksize - 1) >> - sb->s_blocksize_bits; + sb->s_blocksize - + 1) >> sb-> + s_blocksize_bits; else indirect_ext_len = 1; - } - else - { - extent_trunc(inode, &epos, eloc, etype, elen, 0); + } else { + extent_trunc(inode, &epos, eloc, etype, elen, + 0); epos.offset += adsize; } } - if (indirect_ext_len) - { + if (indirect_ext_len) { if (!epos.bh) BUG(); - udf_free_blocks(sb, inode, epos.block, 0, indirect_ext_len); - } - else - { - if (!epos.bh) - { + udf_free_blocks(sb, inode, epos.block, 0, + indirect_ext_len); + } else { + if (!epos.bh) { UDF_I_LENALLOC(inode) = lenalloc; mark_inode_dirty(inode); - } - else - { - struct allocExtDesc *aed = (struct allocExtDesc *)(epos.bh->b_data); + } else { + struct allocExtDesc *aed = + (struct allocExtDesc *)(epos.bh->b_data); aed->lengthAllocDescs = cpu_to_le32(lenalloc); - if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) || UDF_SB_UDFREV(sb) >= 0x0201) - udf_update_tag(epos.bh->b_data, lenalloc + - sizeof(struct allocExtDesc)); + if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT) + || UDF_SB_UDFREV(sb) >= 0x0201) + udf_update_tag(epos.bh->b_data, + lenalloc + + sizeof(struct + allocExtDesc)); else - udf_update_tag(epos.bh->b_data, sizeof(struct allocExtDesc)); + udf_update_tag(epos.bh->b_data, + sizeof(struct + allocExtDesc)); mark_buffer_dirty_inode(epos.bh, inode); } } - } - else if (inode->i_size) - { - if (byte_offset) - { + } else if (inode->i_size) { + if (byte_offset) { kernel_long_ad extent; /* @@ -293,21 +314,33 @@ void udf_truncate_extents(struct inode * inode) * no extent above inode->i_size => truncate is * extending the file by 'offset' blocks. */ - if ((!epos.bh && epos.offset == udf_file_entry_alloc_offset(inode)) || - (epos.bh && epos.offset == sizeof(struct allocExtDesc))) { + if ((!epos.bh + && epos.offset == + udf_file_entry_alloc_offset(inode)) || (epos.bh + && epos. + offset == + sizeof + (struct + allocExtDesc))) + { /* File has no extents at all or has empty last * indirect extent! Create a fake extent... */ extent.extLocation.logicalBlockNum = 0; extent.extLocation.partitionReferenceNum = 0; - extent.extLength = EXT_NOT_RECORDED_NOT_ALLOCATED; - } - else { + extent.extLength = + EXT_NOT_RECORDED_NOT_ALLOCATED; + } else { epos.offset -= adsize; etype = udf_next_aext(inode, &epos, - &extent.extLocation, &extent.extLength, 0); + &extent.extLocation, + &extent.extLength, 0); extent.extLength |= etype << 30; } - udf_extend_file(inode, &epos, &extent, offset+((inode->i_size & (sb->s_blocksize-1)) != 0)); + udf_extend_file(inode, &epos, &extent, + offset + + ((inode-> + i_size & (sb->s_blocksize - 1)) != + 0)); } } UDF_I_LENEXTENTS(inode) = inode->i_size; diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h index d7dbe6f3ba0c..bee4308a8113 100644 --- a/fs/udf/udf_i.h +++ b/fs/udf/udf_i.h @@ -23,4 +23,4 @@ static inline struct udf_inode_info *UDF_I(struct inode *inode) #define UDF_I_LAD(X) ( UDF_I(X)->i_ext.i_lad ) #define UDF_I_DATA(X) ( UDF_I(X)->i_ext.i_data ) -#endif /* !defined(_LINUX_UDF_I_H) */ +#endif /* !defined(_LINUX_UDF_I_H) */ diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h index 3b2e6c8cb151..60f31d8cebee 100644 --- a/fs/udf/udf_sb.h +++ b/fs/udf/udf_sb.h @@ -20,8 +20,8 @@ #define UDF_FLAG_VARCONV 8 #define UDF_FLAG_NLS_MAP 9 #define UDF_FLAG_UTF8 10 -#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */ -#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */ +#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */ +#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */ #define UDF_FLAG_GID_FORGET 13 #define UDF_FLAG_GID_IGNORE 14 @@ -139,4 +139,4 @@ static inline struct udf_sb_info *UDF_SB(struct super_block *sb) #define UDF_SB_FLAGS(X) ( UDF_SB(X)->s_flags ) #define UDF_SB_VAT(X) ( UDF_SB(X)->s_vat ) -#endif /* __LINUX_UDF_SB_H */ +#endif /* __LINUX_UDF_SB_H */ diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h index f581f2f69c0f..76f2b82a39dc 100644 --- a/fs/udf/udfdecl.h +++ b/fs/udf/udfdecl.h @@ -50,30 +50,26 @@ extern const struct address_space_operations udf_aops; extern const struct address_space_operations udf_adinicb_aops; extern const struct address_space_operations udf_symlink_aops; -struct udf_fileident_bh -{ +struct udf_fileident_bh { struct buffer_head *sbh; struct buffer_head *ebh; int soffset; int eoffset; }; -struct udf_vds_record -{ +struct udf_vds_record { uint32_t block; uint32_t volDescSeqNum; }; -struct generic_desc -{ - tag descTag; - __le32 volDescSeqNum; +struct generic_desc { + tag descTag; + __le32 volDescSeqNum; }; -struct ustr -{ +struct ustr { uint8_t u_cmpID; - uint8_t u_name[UDF_NAME_LEN-2]; + uint8_t u_name[UDF_NAME_LEN - 2]; uint8_t u_len; }; @@ -83,44 +79,58 @@ struct extent_position { kernel_lb_addr block; }; - /* super.c */ extern void udf_error(struct super_block *, const char *, const char *, ...); extern void udf_warning(struct super_block *, const char *, const char *, ...); /* namei.c */ -extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, struct fileIdentDesc *, struct udf_fileident_bh *, uint8_t *, uint8_t *); +extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, + struct fileIdentDesc *, struct udf_fileident_bh *, + uint8_t *, uint8_t *); /* file.c */ -extern int udf_ioctl(struct inode *, struct file *, unsigned int, unsigned long); +extern int udf_ioctl(struct inode *, struct file *, unsigned int, + unsigned long); /* inode.c */ extern struct inode *udf_iget(struct super_block *, kernel_lb_addr); extern int udf_sync_inode(struct inode *); extern void udf_expand_file_adinicb(struct inode *, int, int *); -extern struct buffer_head * udf_expand_dir_adinicb(struct inode *, int *, int *); -extern struct buffer_head * udf_bread(struct inode *, int, int, int *); +extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); +extern struct buffer_head *udf_bread(struct inode *, int, int, int *); extern void udf_truncate(struct inode *); extern void udf_read_inode(struct inode *); extern void udf_delete_inode(struct inode *); extern void udf_clear_inode(struct inode *); extern int udf_write_inode(struct inode *, int); extern long udf_block_map(struct inode *, sector_t); -extern int udf_extend_file(struct inode *, struct extent_position *, kernel_long_ad *, sector_t); -extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, kernel_lb_addr *, uint32_t *, sector_t *); -extern int8_t udf_add_aext(struct inode *, struct extent_position *, kernel_lb_addr, uint32_t, int); -extern int8_t udf_write_aext(struct inode *, struct extent_position *, kernel_lb_addr, uint32_t, int); -extern int8_t udf_delete_aext(struct inode *, struct extent_position, kernel_lb_addr, uint32_t); -extern int8_t udf_next_aext(struct inode *, struct extent_position *, kernel_lb_addr *, uint32_t *, int); -extern int8_t udf_current_aext(struct inode *, struct extent_position *, kernel_lb_addr *, uint32_t *, int); +extern int udf_extend_file(struct inode *, struct extent_position *, + kernel_long_ad *, sector_t); +extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, + kernel_lb_addr *, uint32_t *, sector_t *); +extern int8_t udf_add_aext(struct inode *, struct extent_position *, + kernel_lb_addr, uint32_t, int); +extern int8_t udf_write_aext(struct inode *, struct extent_position *, + kernel_lb_addr, uint32_t, int); +extern int8_t udf_delete_aext(struct inode *, struct extent_position, + kernel_lb_addr, uint32_t); +extern int8_t udf_next_aext(struct inode *, struct extent_position *, + kernel_lb_addr *, uint32_t *, int); +extern int8_t udf_current_aext(struct inode *, struct extent_position *, + kernel_lb_addr *, uint32_t *, int); /* misc.c */ extern struct buffer_head *udf_tgetblk(struct super_block *, int); extern struct buffer_head *udf_tread(struct super_block *, int); -extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, uint32_t, uint8_t); -extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, uint8_t); -extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, uint32_t, uint16_t *); -extern struct buffer_head *udf_read_ptagged(struct super_block *, kernel_lb_addr, uint32_t, uint16_t *); +extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, + uint32_t, uint8_t); +extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, + uint8_t); +extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, + uint32_t, uint16_t *); +extern struct buffer_head *udf_read_ptagged(struct super_block *, + kernel_lb_addr, uint32_t, + uint16_t *); extern void udf_update_tag(char *, int); extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); @@ -129,21 +139,26 @@ extern unsigned int udf_get_last_session(struct super_block *); extern unsigned long udf_get_last_block(struct super_block *); /* partition.c */ -extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, uint32_t); -extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, uint32_t); -extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, uint32_t); -extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, uint32_t); +extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, + uint32_t); extern int udf_relocate_blocks(struct super_block *, long, long *); /* unicode.c */ extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int); -extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, int); +extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, + int); extern int udf_build_ustr(struct ustr *, dstring *, int); extern int udf_CS0toUTF8(struct ustr *, struct ustr *); /* ialloc.c */ extern void udf_free_inode(struct inode *); -extern struct inode * udf_new_inode (struct inode *, int, int *); +extern struct inode *udf_new_inode(struct inode *, int, int *); /* truncate.c */ extern void udf_truncate_tail_extent(struct inode *); @@ -151,18 +166,27 @@ extern void udf_discard_prealloc(struct inode *); extern void udf_truncate_extents(struct inode *); /* balloc.c */ -extern void udf_free_blocks(struct super_block *, struct inode *, kernel_lb_addr, uint32_t, uint32_t); -extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, uint32_t, uint32_t); -extern int udf_new_block(struct super_block *, struct inode *, uint16_t, uint32_t, int *); +extern void udf_free_blocks(struct super_block *, struct inode *, + kernel_lb_addr, uint32_t, uint32_t); +extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, + uint32_t, uint32_t); +extern int udf_new_block(struct super_block *, struct inode *, uint16_t, + uint32_t, int *); /* fsync.c */ extern int udf_fsync_file(struct file *, struct dentry *, int); /* directory.c */ -extern struct fileIdentDesc * udf_fileident_read(struct inode *, loff_t *, struct udf_fileident_bh *, struct fileIdentDesc *, struct extent_position *, kernel_lb_addr *, uint32_t *, sector_t *); -extern struct fileIdentDesc * udf_get_fileident(void * buffer, int bufsize, int * offset); -extern long_ad * udf_get_filelongad(uint8_t *, int, int *, int); -extern short_ad * udf_get_fileshortad(uint8_t *, int, int *, int); +extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, + struct udf_fileident_bh *, + struct fileIdentDesc *, + struct extent_position *, + kernel_lb_addr *, uint32_t *, + sector_t *); +extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, + int *offset); +extern long_ad *udf_get_filelongad(uint8_t *, int, int *, int); +extern short_ad *udf_get_fileshortad(uint8_t *, int, int *, int); /* crc.c */ extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t); @@ -171,4 +195,4 @@ extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t); extern time_t *udf_stamp_to_time(time_t *, long *, kernel_timestamp); extern kernel_timestamp *udf_time_to_stamp(kernel_timestamp *, struct timespec); -#endif /* __UDF_DECL_H */ +#endif /* __UDF_DECL_H */ diff --git a/fs/udf/udfend.h b/fs/udf/udfend.h index 17d378879561..450daab35a13 100644 --- a/fs/udf/udfend.h +++ b/fs/udf/udfend.h @@ -78,4 +78,4 @@ static inline timestamp cpu_to_lets(kernel_timestamp in) return out; } -#endif /* __UDF_ENDIAN_H */ +#endif /* __UDF_ENDIAN_H */ diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c index 85d8dbe843f1..b9f3198080e9 100644 --- a/fs/udf/udftime.c +++ b/fs/udf/udftime.c @@ -46,37 +46,36 @@ #endif /* How many days come before each month (0-12). */ -static const unsigned short int __mon_yday[2][13] = -{ +static const unsigned short int __mon_yday[2][13] = { /* Normal years. */ - { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, + {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365}, /* Leap years. */ - { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } + {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366} }; #define MAX_YEAR_SECONDS 69 -#define SPD 0x15180 /*3600*24*/ +#define SPD 0x15180 /*3600*24 */ #define SPY(y,l,s) (SPD * (365*y+l)+s) -static time_t year_seconds[MAX_YEAR_SECONDS]= { -/*1970*/ SPY( 0, 0,0), SPY( 1, 0,0), SPY( 2, 0,0), SPY( 3, 1,0), -/*1974*/ SPY( 4, 1,0), SPY( 5, 1,0), SPY( 6, 1,0), SPY( 7, 2,0), -/*1978*/ SPY( 8, 2,0), SPY( 9, 2,0), SPY(10, 2,0), SPY(11, 3,0), -/*1982*/ SPY(12, 3,0), SPY(13, 3,0), SPY(14, 3,0), SPY(15, 4,0), -/*1986*/ SPY(16, 4,0), SPY(17, 4,0), SPY(18, 4,0), SPY(19, 5,0), -/*1990*/ SPY(20, 5,0), SPY(21, 5,0), SPY(22, 5,0), SPY(23, 6,0), -/*1994*/ SPY(24, 6,0), SPY(25, 6,0), SPY(26, 6,0), SPY(27, 7,0), -/*1998*/ SPY(28, 7,0), SPY(29, 7,0), SPY(30, 7,0), SPY(31, 8,0), -/*2002*/ SPY(32, 8,0), SPY(33, 8,0), SPY(34, 8,0), SPY(35, 9,0), -/*2006*/ SPY(36, 9,0), SPY(37, 9,0), SPY(38, 9,0), SPY(39,10,0), -/*2010*/ SPY(40,10,0), SPY(41,10,0), SPY(42,10,0), SPY(43,11,0), -/*2014*/ SPY(44,11,0), SPY(45,11,0), SPY(46,11,0), SPY(47,12,0), -/*2018*/ SPY(48,12,0), SPY(49,12,0), SPY(50,12,0), SPY(51,13,0), -/*2022*/ SPY(52,13,0), SPY(53,13,0), SPY(54,13,0), SPY(55,14,0), -/*2026*/ SPY(56,14,0), SPY(57,14,0), SPY(58,14,0), SPY(59,15,0), -/*2030*/ SPY(60,15,0), SPY(61,15,0), SPY(62,15,0), SPY(63,16,0), -/*2034*/ SPY(64,16,0), SPY(65,16,0), SPY(66,16,0), SPY(67,17,0), -/*2038*/ SPY(68,17,0) +static time_t year_seconds[MAX_YEAR_SECONDS] = { +/*1970*/ SPY(0, 0, 0), SPY(1, 0, 0), SPY(2, 0, 0), SPY(3, 1, 0), +/*1974*/ SPY(4, 1, 0), SPY(5, 1, 0), SPY(6, 1, 0), SPY(7, 2, 0), +/*1978*/ SPY(8, 2, 0), SPY(9, 2, 0), SPY(10, 2, 0), SPY(11, 3, 0), +/*1982*/ SPY(12, 3, 0), SPY(13, 3, 0), SPY(14, 3, 0), SPY(15, 4, 0), +/*1986*/ SPY(16, 4, 0), SPY(17, 4, 0), SPY(18, 4, 0), SPY(19, 5, 0), +/*1990*/ SPY(20, 5, 0), SPY(21, 5, 0), SPY(22, 5, 0), SPY(23, 6, 0), +/*1994*/ SPY(24, 6, 0), SPY(25, 6, 0), SPY(26, 6, 0), SPY(27, 7, 0), +/*1998*/ SPY(28, 7, 0), SPY(29, 7, 0), SPY(30, 7, 0), SPY(31, 8, 0), +/*2002*/ SPY(32, 8, 0), SPY(33, 8, 0), SPY(34, 8, 0), SPY(35, 9, 0), +/*2006*/ SPY(36, 9, 0), SPY(37, 9, 0), SPY(38, 9, 0), SPY(39, 10, 0), +/*2010*/ SPY(40, 10, 0), SPY(41, 10, 0), SPY(42, 10, 0), SPY(43, 11, 0), +/*2014*/ SPY(44, 11, 0), SPY(45, 11, 0), SPY(46, 11, 0), SPY(47, 12, 0), +/*2018*/ SPY(48, 12, 0), SPY(49, 12, 0), SPY(50, 12, 0), SPY(51, 13, 0), +/*2022*/ SPY(52, 13, 0), SPY(53, 13, 0), SPY(54, 13, 0), SPY(55, 14, 0), +/*2026*/ SPY(56, 14, 0), SPY(57, 14, 0), SPY(58, 14, 0), SPY(59, 15, 0), +/*2030*/ SPY(60, 15, 0), SPY(61, 15, 0), SPY(62, 15, 0), SPY(63, 16, 0), +/*2034*/ SPY(64, 16, 0), SPY(65, 16, 0), SPY(66, 16, 0), SPY(67, 17, 0), +/*2038*/ SPY(68, 17, 0) }; extern struct timezone sys_tz; @@ -84,27 +83,23 @@ extern struct timezone sys_tz; #define SECS_PER_HOUR (60 * 60) #define SECS_PER_DAY (SECS_PER_HOUR * 24) -time_t * -udf_stamp_to_time(time_t *dest, long *dest_usec, kernel_timestamp src) +time_t *udf_stamp_to_time(time_t * dest, long *dest_usec, kernel_timestamp src) { int yday; uint8_t type = src.typeAndTimezone >> 12; int16_t offset; - if (type == 1) - { + if (type == 1) { offset = src.typeAndTimezone << 4; /* sign extent offset */ offset = (offset >> 4); - if (offset == -2047) /* unspecified offset */ + if (offset == -2047) /* unspecified offset */ offset = 0; - } - else + } else offset = 0; if ((src.year < EPOCH_YEAR) || - (src.year >= EPOCH_YEAR+MAX_YEAR_SECONDS)) - { + (src.year >= EPOCH_YEAR + MAX_YEAR_SECONDS)) { *dest = -1; *dest_usec = -1; return NULL; @@ -112,16 +107,16 @@ udf_stamp_to_time(time_t *dest, long *dest_usec, kernel_timestamp src) *dest = year_seconds[src.year - EPOCH_YEAR]; *dest -= offset * 60; - yday = ((__mon_yday[__isleap (src.year)] - [src.month-1]) + (src.day-1)); - *dest += ( ( (yday* 24) + src.hour ) * 60 + src.minute ) * 60 + src.second; - *dest_usec = src.centiseconds * 10000 + src.hundredsOfMicroseconds * 100 + src.microseconds; + yday = ((__mon_yday[__isleap(src.year)] + [src.month - 1]) + (src.day - 1)); + *dest += (((yday * 24) + src.hour) * 60 + src.minute) * 60 + src.second; + *dest_usec = + src.centiseconds * 10000 + src.hundredsOfMicroseconds * 100 + + src.microseconds; return dest; } - -kernel_timestamp * -udf_time_to_stamp(kernel_timestamp *dest, struct timespec ts) +kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts) { long int days, rem, y; const unsigned short int *ip; @@ -146,28 +141,28 @@ udf_time_to_stamp(kernel_timestamp *dest, struct timespec ts) #define DIV(a,b) ((a) / (b) - ((a) % (b) < 0)) #define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400)) - while (days < 0 || days >= (__isleap(y) ? 366 : 365)) - { + while (days < 0 || days >= (__isleap(y) ? 366 : 365)) { long int yg = y + days / 365 - (days % 365 < 0); /* Adjust DAYS and Y to match the guessed year. */ - days -= ((yg - y) * 365 - + LEAPS_THRU_END_OF (yg - 1) - - LEAPS_THRU_END_OF (y - 1)); + days -= ((yg - y) * 365 + LEAPS_THRU_END_OF(yg - 1) + - LEAPS_THRU_END_OF(y - 1)); y = yg; } dest->year = y; ip = __mon_yday[__isleap(y)]; - for (y = 11; days < (long int) ip[y]; --y) + for (y = 11; days < (long int)ip[y]; --y) continue; days -= ip[y]; dest->month = y + 1; dest->day = days + 1; dest->centiseconds = ts.tv_nsec / 10000000; - dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000) / 100; - dest->microseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000 - - dest->hundredsOfMicroseconds * 100); + dest->hundredsOfMicroseconds = + (ts.tv_nsec / 1000 - dest->centiseconds * 10000) / 100; + dest->microseconds = + (ts.tv_nsec / 1000 - dest->centiseconds * 10000 - + dest->hundredsOfMicroseconds * 100); return dest; } diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c index 706c92e1dcc9..46835240275c 100644 --- a/fs/udf/unicode.c +++ b/fs/udf/unicode.c @@ -29,9 +29,9 @@ static int udf_translate_to_linux(uint8_t *, uint8_t *, int, uint8_t *, int); -static int udf_char_to_ustr(struct ustr *dest, const uint8_t *src, int strlen) +static int udf_char_to_ustr(struct ustr *dest, const uint8_t * src, int strlen) { - if ( (!dest) || (!src) || (!strlen) || (strlen > UDF_NAME_LEN-2) ) + if ((!dest) || (!src) || (!strlen) || (strlen > UDF_NAME_LEN - 2)) return 0; memset(dest, 0, sizeof(struct ustr)); memcpy(dest->u_name, src, strlen); @@ -43,33 +43,33 @@ static int udf_char_to_ustr(struct ustr *dest, const uint8_t *src, int strlen) /* * udf_build_ustr */ -int udf_build_ustr(struct ustr *dest, dstring *ptr, int size) +int udf_build_ustr(struct ustr *dest, dstring * ptr, int size) { int usesize; - if ( (!dest) || (!ptr) || (!size) ) + if ((!dest) || (!ptr) || (!size)) return -1; memset(dest, 0, sizeof(struct ustr)); - usesize= (size > UDF_NAME_LEN) ? UDF_NAME_LEN : size; - dest->u_cmpID=ptr[0]; - dest->u_len=ptr[size-1]; - memcpy(dest->u_name, ptr+1, usesize-1); + usesize = (size > UDF_NAME_LEN) ? UDF_NAME_LEN : size; + dest->u_cmpID = ptr[0]; + dest->u_len = ptr[size - 1]; + memcpy(dest->u_name, ptr + 1, usesize - 1); return 0; } /* * udf_build_ustr_exact */ -static int udf_build_ustr_exact(struct ustr *dest, dstring *ptr, int exactsize) +static int udf_build_ustr_exact(struct ustr *dest, dstring * ptr, int exactsize) { - if ( (!dest) || (!ptr) || (!exactsize) ) + if ((!dest) || (!ptr) || (!exactsize)) return -1; memset(dest, 0, sizeof(struct ustr)); - dest->u_cmpID=ptr[0]; - dest->u_len=exactsize-1; - memcpy(dest->u_name, ptr+1, exactsize-1); + dest->u_cmpID = ptr[0]; + dest->u_len = exactsize - 1; + memcpy(dest->u_name, ptr + 1, exactsize - 1); return 0; } @@ -108,22 +108,20 @@ int udf_CS0toUTF8(struct ustr *utf_o, struct ustr *ocu_i) cmp_id = ocu_i->u_cmpID; utf_o->u_len = 0; - if (ocu_len == 0) - { + if (ocu_len == 0) { memset(utf_o, 0, sizeof(struct ustr)); utf_o->u_cmpID = 0; utf_o->u_len = 0; return 0; } - if ((cmp_id != 8) && (cmp_id != 16)) - { - printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n", cmp_id, ocu_i->u_name); + if ((cmp_id != 8) && (cmp_id != 16)) { + printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n", + cmp_id, ocu_i->u_name); return 0; } - for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN-3)) ;) - { + for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN - 3));) { /* Expand OSTA compressed Unicode to Unicode */ c = ocu[i++]; @@ -132,20 +130,22 @@ int udf_CS0toUTF8(struct ustr *utf_o, struct ustr *ocu_i) /* Compress Unicode to UTF-8 */ if (c < 0x80U) - utf_o->u_name[utf_o->u_len++] = (uint8_t)c; - else if (c < 0x800U) - { - utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xc0 | (c >> 6)); - utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f)); - } - else - { - utf_o->u_name[utf_o->u_len++] = (uint8_t)(0xe0 | (c >> 12)); - utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | ((c >> 6) & 0x3f)); - utf_o->u_name[utf_o->u_len++] = (uint8_t)(0x80 | (c & 0x3f)); + utf_o->u_name[utf_o->u_len++] = (uint8_t) c; + else if (c < 0x800U) { + utf_o->u_name[utf_o->u_len++] = + (uint8_t) (0xc0 | (c >> 6)); + utf_o->u_name[utf_o->u_len++] = + (uint8_t) (0x80 | (c & 0x3f)); + } else { + utf_o->u_name[utf_o->u_len++] = + (uint8_t) (0xe0 | (c >> 12)); + utf_o->u_name[utf_o->u_len++] = + (uint8_t) (0x80 | ((c >> 6) & 0x3f)); + utf_o->u_name[utf_o->u_len++] = + (uint8_t) (0x80 | (c & 0x3f)); } } - utf_o->u_cmpID=8; + utf_o->u_cmpID = 8; return utf_o->u_len; } @@ -173,7 +173,7 @@ int udf_CS0toUTF8(struct ustr *utf_o, struct ustr *ocu_i) * November 12, 1997 - Andrew E. Mileski * Written, tested, and released. */ -static int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length) +static int udf_UTF8toCS0(dstring * ocu, struct ustr *utf, int length) { unsigned c, i, max_val, utf_char; int utf_cnt, u_len; @@ -182,53 +182,38 @@ static int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length) ocu[0] = 8; max_val = 0xffU; -try_again: + try_again: u_len = 0U; utf_char = 0U; utf_cnt = 0U; - for (i = 0U; i < utf->u_len; i++) - { - c = (uint8_t)utf->u_name[i]; + for (i = 0U; i < utf->u_len; i++) { + c = (uint8_t) utf->u_name[i]; /* Complete a multi-byte UTF-8 character */ - if (utf_cnt) - { + if (utf_cnt) { utf_char = (utf_char << 6) | (c & 0x3fU); if (--utf_cnt) continue; - } - else - { + } else { /* Check for a multi-byte UTF-8 character */ - if (c & 0x80U) - { + if (c & 0x80U) { /* Start a multi-byte UTF-8 character */ - if ((c & 0xe0U) == 0xc0U) - { + if ((c & 0xe0U) == 0xc0U) { utf_char = c & 0x1fU; utf_cnt = 1; - } - else if ((c & 0xf0U) == 0xe0U) - { + } else if ((c & 0xf0U) == 0xe0U) { utf_char = c & 0x0fU; utf_cnt = 2; - } - else if ((c & 0xf8U) == 0xf0U) - { + } else if ((c & 0xf8U) == 0xf0U) { utf_char = c & 0x07U; utf_cnt = 3; - } - else if ((c & 0xfcU) == 0xf8U) - { + } else if ((c & 0xfcU) == 0xf8U) { utf_char = c & 0x03U; utf_cnt = 4; - } - else if ((c & 0xfeU) == 0xfcU) - { + } else if ((c & 0xfeU) == 0xfcU) { utf_char = c & 0x01U; utf_cnt = 5; - } - else + } else goto error_out; continue; } else @@ -237,37 +222,33 @@ try_again: } /* Choose no compression if necessary */ - if (utf_char > max_val) - { - if ( 0xffU == max_val ) - { + if (utf_char > max_val) { + if (0xffU == max_val) { max_val = 0xffffU; - ocu[0] = (uint8_t)0x10U; + ocu[0] = (uint8_t) 0x10U; goto try_again; } goto error_out; } - if (max_val == 0xffffU) - { - ocu[++u_len] = (uint8_t)(utf_char >> 8); + if (max_val == 0xffffU) { + ocu[++u_len] = (uint8_t) (utf_char >> 8); } - ocu[++u_len] = (uint8_t)(utf_char & 0xffU); + ocu[++u_len] = (uint8_t) (utf_char & 0xffU); } - - if (utf_cnt) - { -error_out: + if (utf_cnt) { + error_out: ocu[++u_len] = '?'; printk(KERN_DEBUG "udf: bad UTF-8 character\n"); } - ocu[length - 1] = (uint8_t)u_len + 1; + ocu[length - 1] = (uint8_t) u_len + 1; return u_len + 1; } -static int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o, struct ustr *ocu_i) +static int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o, + struct ustr *ocu_i) { uint8_t *ocu; uint32_t c; @@ -280,36 +261,35 @@ static int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o, struct ustr * cmp_id = ocu_i->u_cmpID; utf_o->u_len = 0; - if (ocu_len == 0) - { + if (ocu_len == 0) { memset(utf_o, 0, sizeof(struct ustr)); utf_o->u_cmpID = 0; utf_o->u_len = 0; return 0; } - if ((cmp_id != 8) && (cmp_id != 16)) - { - printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n", cmp_id, ocu_i->u_name); + if ((cmp_id != 8) && (cmp_id != 16)) { + printk(KERN_ERR "udf: unknown compression code (%d) stri=%s\n", + cmp_id, ocu_i->u_name); return 0; } - for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN-3)) ;) - { + for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN - 3));) { /* Expand OSTA compressed Unicode to Unicode */ c = ocu[i++]; if (cmp_id == 16) c = (c << 8) | ocu[i++]; - utf_o->u_len += nls->uni2char(c, &utf_o->u_name[utf_o->u_len], - UDF_NAME_LEN - utf_o->u_len); + utf_o->u_len += nls->uni2char(c, &utf_o->u_name[utf_o->u_len], + UDF_NAME_LEN - utf_o->u_len); } - utf_o->u_cmpID=8; + utf_o->u_cmpID = 8; return utf_o->u_len; } -static int udf_NLStoCS0(struct nls_table *nls, dstring *ocu, struct ustr *uni, int length) +static int udf_NLStoCS0(struct nls_table *nls, dstring * ocu, struct ustr *uni, + int length) { unsigned len, i, max_val; uint16_t uni_char; @@ -319,93 +299,87 @@ static int udf_NLStoCS0(struct nls_table *nls, dstring *ocu, struct ustr *uni, i ocu[0] = 8; max_val = 0xffU; -try_again: + try_again: u_len = 0U; - for (i = 0U; i < uni->u_len; i++) - { - len = nls->char2uni(&uni->u_name[i], uni->u_len-i, &uni_char); + for (i = 0U; i < uni->u_len; i++) { + len = nls->char2uni(&uni->u_name[i], uni->u_len - i, &uni_char); if (len <= 0) continue; - if (uni_char > max_val) - { + if (uni_char > max_val) { max_val = 0xffffU; - ocu[0] = (uint8_t)0x10U; + ocu[0] = (uint8_t) 0x10U; goto try_again; } - + if (max_val == 0xffffU) - ocu[++u_len] = (uint8_t)(uni_char >> 8); - ocu[++u_len] = (uint8_t)(uni_char & 0xffU); + ocu[++u_len] = (uint8_t) (uni_char >> 8); + ocu[++u_len] = (uint8_t) (uni_char & 0xffU); i += len - 1; } - ocu[length - 1] = (uint8_t)u_len + 1; + ocu[length - 1] = (uint8_t) u_len + 1; return u_len + 1; } -int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname, int flen) +int udf_get_filename(struct super_block *sb, uint8_t * sname, uint8_t * dname, + int flen) { struct ustr filename, unifilename; int len; - if (udf_build_ustr_exact(&unifilename, sname, flen)) - { + if (udf_build_ustr_exact(&unifilename, sname, flen)) { return 0; } - if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) - { - if (!udf_CS0toUTF8(&filename, &unifilename) ) - { - udf_debug("Failed in udf_get_filename: sname = %s\n", sname); + if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) { + if (!udf_CS0toUTF8(&filename, &unifilename)) { + udf_debug("Failed in udf_get_filename: sname = %s\n", + sname); return 0; } - } - else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) - { - if (!udf_CS0toNLS(UDF_SB(sb)->s_nls_map, &filename, &unifilename) ) - { - udf_debug("Failed in udf_get_filename: sname = %s\n", sname); + } else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) { + if (!udf_CS0toNLS + (UDF_SB(sb)->s_nls_map, &filename, &unifilename)) { + udf_debug("Failed in udf_get_filename: sname = %s\n", + sname); return 0; } - } - else + } else return 0; - if ((len = udf_translate_to_linux(dname, filename.u_name, filename.u_len, - unifilename.u_name, unifilename.u_len))) - { + if ((len = + udf_translate_to_linux(dname, filename.u_name, filename.u_len, + unifilename.u_name, unifilename.u_len))) { return len; } return 0; } -int udf_put_filename(struct super_block *sb, const uint8_t *sname, uint8_t *dname, int flen) +int udf_put_filename(struct super_block *sb, const uint8_t * sname, + uint8_t * dname, int flen) { struct ustr unifilename; int namelen; - if ( !(udf_char_to_ustr(&unifilename, sname, flen)) ) - { + if (!(udf_char_to_ustr(&unifilename, sname, flen))) { return 0; } - if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) - { - if ( !(namelen = udf_UTF8toCS0(dname, &unifilename, UDF_NAME_LEN)) ) - { + if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) { + if (! + (namelen = + udf_UTF8toCS0(dname, &unifilename, UDF_NAME_LEN))) { return 0; } - } - else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) - { - if ( !(namelen = udf_NLStoCS0(UDF_SB(sb)->s_nls_map, dname, &unifilename, UDF_NAME_LEN)) ) - { + } else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) { + if (! + (namelen = + udf_NLStoCS0(UDF_SB(sb)->s_nls_map, dname, &unifilename, + UDF_NAME_LEN))) { return 0; } - } - else + } else return 0; return namelen; @@ -416,40 +390,36 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname, uint8_t *dnam #define CRC_MARK '#' #define EXT_SIZE 5 -static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen, uint8_t *fidName, int fidNameLen) +static int udf_translate_to_linux(uint8_t * newName, uint8_t * udfName, + int udfLen, uint8_t * fidName, int fidNameLen) { - int index, newIndex = 0, needsCRC = 0; + int index, newIndex = 0, needsCRC = 0; int extIndex = 0, newExtIndex = 0, hasExt = 0; unsigned short valueCRC; uint8_t curr; const uint8_t hexChar[] = "0123456789ABCDEF"; if (udfName[0] == '.' && (udfLen == 1 || - (udfLen == 2 && udfName[1] == '.'))) - { + (udfLen == 2 && udfName[1] == '.'))) { needsCRC = 1; newIndex = udfLen; memcpy(newName, udfName, udfLen); - } - else - { - for (index = 0; index < udfLen; index++) - { + } else { + for (index = 0; index < udfLen; index++) { curr = udfName[index]; - if (curr == '/' || curr == 0) - { + if (curr == '/' || curr == 0) { needsCRC = 1; curr = ILLEGAL_CHAR_MARK; - while (index+1 < udfLen && (udfName[index+1] == '/' || - udfName[index+1] == 0)) + while (index + 1 < udfLen + && (udfName[index + 1] == '/' + || udfName[index + 1] == 0)) index++; } - if (curr == EXT_MARK && (udfLen - index - 1) <= EXT_SIZE) - { + if (curr == EXT_MARK + && (udfLen - index - 1) <= EXT_SIZE) { if (udfLen == index + 1) hasExt = 0; - else - { + else { hasExt = 1; extIndex = index; newExtIndex = newIndex; @@ -461,26 +431,29 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen needsCRC = 1; } } - if (needsCRC) - { + if (needsCRC) { uint8_t ext[EXT_SIZE]; int localExtIndex = 0; - if (hasExt) - { + if (hasExt) { int maxFilenameLen; - for(index = 0; index<EXT_SIZE && extIndex + index +1 < udfLen; - index++ ) - { + for (index = 0; + index < EXT_SIZE && extIndex + index + 1 < udfLen; + index++) { curr = udfName[extIndex + index + 1]; - if (curr == '/' || curr == 0) - { + if (curr == '/' || curr == 0) { needsCRC = 1; curr = ILLEGAL_CHAR_MARK; - while(extIndex + index + 2 < udfLen && (index + 1 < EXT_SIZE - && (udfName[extIndex + index + 2] == '/' || - udfName[extIndex + index + 2] == 0))) + while (extIndex + index + 2 < udfLen + && (index + 1 < EXT_SIZE + && + (udfName + [extIndex + index + 2] == + '/' + || udfName[extIndex + + index + 2] == + 0))) index++; } ext[localExtIndex++] = curr; @@ -490,8 +463,7 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen newIndex = maxFilenameLen; else newIndex = newExtIndex; - } - else if (newIndex > 250) + } else if (newIndex > 250) newIndex = 250; newName[newIndex++] = CRC_MARK; valueCRC = udf_crc(fidName, fidNameLen, 0); @@ -500,10 +472,9 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName, int udfLen newName[newIndex++] = hexChar[(valueCRC & 0x00f0) >> 4]; newName[newIndex++] = hexChar[(valueCRC & 0x000f)]; - if (hasExt) - { + if (hasExt) { newName[newIndex++] = EXT_MARK; - for (index = 0;index < localExtIndex ;index++ ) + for (index = 0; index < localExtIndex; index++) newName[newIndex++] = ext[index]; } } diff --git a/fs/utimes.c b/fs/utimes.c index 83a7e69e706c..682eb63b20ad 100644 --- a/fs/utimes.c +++ b/fs/utimes.c @@ -106,7 +106,7 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags if (IS_IMMUTABLE(inode)) goto dput_and_out; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) { + if (!is_owner_or_cap(inode)) { if (f) { if (!(f->f_mode & FMODE_WRITE)) goto dput_and_out; diff --git a/fs/xattr.c b/fs/xattr.c index 4523aca79659..a44fd92caca3 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -60,8 +60,7 @@ xattr_permission(struct inode *inode, const char *name, int mask) if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode)) return -EPERM; if (S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX) && - (mask & MAY_WRITE) && (current->fsuid != inode->i_uid) && - !capable(CAP_FOWNER)) + (mask & MAY_WRITE) && !is_owner_or_cap(inode)) return -EPERM; } diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index 2df63622354e..b0f0e58866de 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -35,10 +35,13 @@ #include <linux/freezer.h> static kmem_zone_t *xfs_buf_zone; -static struct shrinker *xfs_buf_shake; STATIC int xfsbufd(void *); STATIC int xfsbufd_wakeup(int, gfp_t); STATIC void xfs_buf_delwri_queue(xfs_buf_t *, int); +static struct shrinker xfs_buf_shake = { + .shrink = xfsbufd_wakeup, + .seeks = DEFAULT_SEEKS, +}; static struct workqueue_struct *xfslogd_workqueue; struct workqueue_struct *xfsdatad_workqueue; @@ -1832,14 +1835,9 @@ xfs_buf_init(void) if (!xfsdatad_workqueue) goto out_destroy_xfslogd_workqueue; - xfs_buf_shake = set_shrinker(DEFAULT_SEEKS, xfsbufd_wakeup); - if (!xfs_buf_shake) - goto out_destroy_xfsdatad_workqueue; - + register_shrinker(&xfs_buf_shake); return 0; - out_destroy_xfsdatad_workqueue: - destroy_workqueue(xfsdatad_workqueue); out_destroy_xfslogd_workqueue: destroy_workqueue(xfslogd_workqueue); out_free_buf_zone: @@ -1854,7 +1852,7 @@ xfs_buf_init(void) void xfs_buf_terminate(void) { - remove_shrinker(xfs_buf_shake); + unregister_shrinker(&xfs_buf_shake); destroy_workqueue(xfsdatad_workqueue); destroy_workqueue(xfslogd_workqueue); kmem_zone_destroy(xfs_buf_zone); diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c index cbcd40c8c2a0..2d4be2f247b2 100644 --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -212,19 +212,18 @@ xfs_file_fsync( } #ifdef CONFIG_XFS_DMAPI -STATIC struct page * -xfs_vm_nopage( - struct vm_area_struct *area, - unsigned long address, - int *type) +STATIC int +xfs_vm_fault( + struct vm_area_struct *vma, + struct vm_fault *vmf) { - struct inode *inode = area->vm_file->f_path.dentry->d_inode; + struct inode *inode = vma->vm_file->f_path.dentry->d_inode; bhv_vnode_t *vp = vn_from_inode(inode); ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI); - if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), area, 0)) - return NULL; - return filemap_nopage(area, address, type); + if (XFS_SEND_MMAP(XFS_VFSTOM(vp->v_vfsp), vma, 0)) + return VM_FAULT_SIGBUS; + return filemap_fault(vma, vmf); } #endif /* CONFIG_XFS_DMAPI */ @@ -310,6 +309,7 @@ xfs_file_mmap( struct vm_area_struct *vma) { vma->vm_ops = &xfs_file_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; #ifdef CONFIG_XFS_DMAPI if (vn_from_inode(filp->f_path.dentry->d_inode)->v_vfsp->vfs_flag & VFS_DMI) @@ -464,14 +464,12 @@ const struct file_operations xfs_dir_file_operations = { }; static struct vm_operations_struct xfs_file_vm_ops = { - .nopage = filemap_nopage, - .populate = filemap_populate, + .fault = filemap_fault, }; #ifdef CONFIG_XFS_DMAPI static struct vm_operations_struct xfs_dmapi_file_vm_ops = { - .nopage = xfs_vm_nopage, - .populate = filemap_populate, + .fault = xfs_vm_fault, #ifdef HAVE_VMOP_MPROTECT .mprotect = xfs_vm_mprotect, #endif diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 06894cf00b12..4528f9a3f304 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -562,6 +562,7 @@ xfssyncd( bhv_vfs_sync_work_t *work, *n; LIST_HEAD (tmp); + set_freezable(); timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10); for (;;) { timeleft = schedule_timeout_interruptible(timeleft); diff --git a/fs/xfs/linux-2.6/xfs_super.h b/fs/xfs/linux-2.6/xfs_super.h index 33dd1ca13245..201cc3273c84 100644 --- a/fs/xfs/linux-2.6/xfs_super.h +++ b/fs/xfs/linux-2.6/xfs_super.h @@ -18,6 +18,8 @@ #ifndef __XFS_SUPER_H__ #define __XFS_SUPER_H__ +#include <linux/exportfs.h> + #ifdef CONFIG_XFS_DMAPI # define vfs_insertdmapi(vfs) vfs_insertops(vfsp, &xfs_dmops) # define vfs_initdmapi() dmapi_init() diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 7def4c699343..2d274b23ade5 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -62,7 +62,6 @@ uint ndquot; kmem_zone_t *qm_dqzone; kmem_zone_t *qm_dqtrxzone; -static struct shrinker *xfs_qm_shaker; static cred_t xfs_zerocr; @@ -78,6 +77,11 @@ STATIC int xfs_qm_init_quotainos(xfs_mount_t *); STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); STATIC int xfs_qm_shake(int, gfp_t); +static struct shrinker xfs_qm_shaker = { + .shrink = xfs_qm_shake, + .seeks = DEFAULT_SEEKS, +}; + #ifdef DEBUG extern mutex_t qcheck_lock; #endif @@ -149,7 +153,7 @@ xfs_Gqm_init(void) } else xqm->qm_dqzone = qm_dqzone; - xfs_qm_shaker = set_shrinker(DEFAULT_SEEKS, xfs_qm_shake); + register_shrinker(&xfs_qm_shaker); /* * The t_dqinfo portion of transactions. @@ -181,7 +185,7 @@ xfs_qm_destroy( ASSERT(xqm != NULL); ASSERT(xqm->qm_nrefs == 0); - remove_shrinker(xfs_qm_shaker); + unregister_shrinker(&xfs_qm_shaker); hsize = xqm->qm_dqhashmask + 1; for (i = 0; i < hsize; i++) { xfs_qm_list_destroy(&(xqm->qm_usr_dqhtable[i])); diff --git a/include/asm-alpha/a.out.h b/include/asm-alpha/a.out.h index d97daf42753d..e43cf61649a9 100644 --- a/include/asm-alpha/a.out.h +++ b/include/asm-alpha/a.out.h @@ -101,6 +101,8 @@ struct exec #define STACK_TOP \ (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL) +#define STACK_TOP_MAX 0x00120000000UL + #endif #endif /* __A_OUT_GNU_H__ */ diff --git a/include/asm-alpha/fb.h b/include/asm-alpha/fb.h new file mode 100644 index 000000000000..fa9bbb96b2b3 --- /dev/null +++ b/include/asm-alpha/fb.h @@ -0,0 +1,13 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/device.h> + +/* Caching is off in the I/O space quadrant by design. */ +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-alpha/page.h b/include/asm-alpha/page.h index d2bed3cb33ff..bae7f05716d4 100644 --- a/include/asm-alpha/page.h +++ b/include/asm-alpha/page.h @@ -17,7 +17,8 @@ extern void clear_page(void *page); #define clear_user_page(page, vaddr, pg) clear_page(page) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vmaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vmaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE extern void copy_page(void * _to, void * _from); diff --git a/include/asm-alpha/termios.h b/include/asm-alpha/termios.h index 39e492c3bfa3..fa13716a11c3 100644 --- a/include/asm-alpha/termios.h +++ b/include/asm-alpha/termios.h @@ -81,7 +81,7 @@ struct termio { #define user_termio_to_kernel_termios(a_termios, u_termio) \ ({ \ - struct termios *k_termios = (a_termios); \ + struct ktermios *k_termios = (a_termios); \ struct termio k_termio; \ int canon, ret; \ \ @@ -113,7 +113,7 @@ struct termio { */ #define kernel_termios_to_user_termio(u_termio, a_termios) \ ({ \ - struct termios *k_termios = (a_termios); \ + struct ktermios *k_termios = (a_termios); \ struct termio k_termio; \ int canon; \ \ diff --git a/include/asm-arm/a.out.h b/include/asm-arm/a.out.h index 3e5fe64c4394..d7165e86df25 100644 --- a/include/asm-arm/a.out.h +++ b/include/asm-arm/a.out.h @@ -30,6 +30,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP ((current->personality == PER_LINUX_32BIT) ? \ TASK_SIZE : TASK_SIZE_26) +#define STACK_TOP_MAX TASK_SIZE #endif #ifndef LIBRARY_START_TEXT diff --git a/include/asm-arm/fb.h b/include/asm-arm/fb.h new file mode 100644 index 000000000000..d92e99cd8c8a --- /dev/null +++ b/include/asm-arm/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h index cb4c2c9d000a..d2e8171d1d4e 100644 --- a/include/asm-arm/pgtable.h +++ b/include/asm-arm/pgtable.h @@ -83,14 +83,14 @@ * means that a write to a clean page will cause a permission fault, and * the Linux MM layer will mark the page dirty via handle_pte_fault(). * For the hardware to notice the permission change, the TLB entry must - * be flushed, and ptep_establish() does that for us. + * be flushed, and ptep_set_access_flags() does that for us. * * The "accessed" or "young" bit is emulated by a similar method; we only * allow accesses to the page if the "young" bit is set. Accesses to the * page will cause a fault, and handle_pte_fault() will set the young bit * for us as long as the page is marked present in the corresponding Linux - * PTE entry. Again, ptep_establish() will ensure that the TLB is up to - * date. + * PTE entry. Again, ptep_set_access_flags() will ensure that the TLB is + * up to date. * * However, when the "young" bit is cleared, we deny access to the page * by clearing the hardware PTE. Currently Linux does not flush the TLB diff --git a/include/asm-arm26/a.out.h b/include/asm-arm26/a.out.h index 9b2702c42c87..7167f54ae3fc 100644 --- a/include/asm-arm26/a.out.h +++ b/include/asm-arm26/a.out.h @@ -29,6 +29,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif #ifndef LIBRARY_START_TEXT diff --git a/include/asm-arm26/fb.h b/include/asm-arm26/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-arm26/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-avr32/a.out.h b/include/asm-avr32/a.out.h index 50bf6e31a143..9f398ab28ed0 100644 --- a/include/asm-avr32/a.out.h +++ b/include/asm-avr32/a.out.h @@ -20,6 +20,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h index 974480438849..0215965dc586 100644 --- a/include/asm-avr32/arch-at32ap/board.h +++ b/include/asm-avr32/arch-at32ap/board.h @@ -36,4 +36,18 @@ struct platform_device * at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data, unsigned long fbmem_start, unsigned long fbmem_len); +/* depending on what's hooked up, not all SSC pins will be used */ +#define ATMEL_SSC_TK 0x01 +#define ATMEL_SSC_TF 0x02 +#define ATMEL_SSC_TD 0x04 +#define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD) + +#define ATMEL_SSC_RK 0x10 +#define ATMEL_SSC_RF 0x20 +#define ATMEL_SSC_RD 0x40 +#define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD) + +struct platform_device * +at32_add_device_ssc(unsigned int id, unsigned int flags); + #endif /* __ASM_ARCH_BOARD_H */ diff --git a/include/asm-avr32/arch-at32ap/sm.h b/include/asm-avr32/arch-at32ap/sm.h deleted file mode 100644 index 265a9ead20bf..000000000000 --- a/include/asm-avr32/arch-at32ap/sm.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * AT32 System Manager interface. - * - * Copyright (C) 2006 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#ifndef __ASM_AVR32_AT32_SM_H__ -#define __ASM_AVR32_AT32_SM_H__ - -struct irq_chip; -struct platform_device; - -struct at32_sm { - spinlock_t lock; - void __iomem *regs; - struct irq_chip *eim_chip; - unsigned int eim_first_irq; - struct platform_device *pdev; -}; - -extern struct platform_device at32_sm_device; -extern struct at32_sm system_manager; - -#endif /* __ASM_AVR32_AT32_SM_H__ */ diff --git a/include/asm-avr32/atomic.h b/include/asm-avr32/atomic.h index b9c2548a52f3..7ef3862a73d0 100644 --- a/include/asm-avr32/atomic.h +++ b/include/asm-avr32/atomic.h @@ -101,7 +101,7 @@ static inline int atomic_sub_unless(atomic_t *v, int a, int u) " mov %1, 1\n" "1:" : "=&r"(tmp), "=&r"(result), "=o"(v->counter) - : "m"(v->counter), "rKs21"(a), "rKs21"(u) + : "m"(v->counter), "rKs21"(a), "rKs21"(u), "1"(result) : "cc", "memory"); return result; @@ -137,7 +137,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u) " mov %1, 1\n" "1:" : "=&r"(tmp), "=&r"(result), "=o"(v->counter) - : "m"(v->counter), "r"(a), "ir"(u) + : "m"(v->counter), "r"(a), "ir"(u), "1"(result) : "cc", "memory"); } diff --git a/include/asm-avr32/fb.h b/include/asm-avr32/fb.h new file mode 100644 index 000000000000..41baf84ad402 --- /dev/null +++ b/include/asm-avr32/fb.h @@ -0,0 +1,21 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = __pgprot((pgprot_val(vma->vm_page_prot) + & ~_PAGE_CACHABLE) + | (_PAGE_BUFFER | _PAGE_DIRTY)); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-avr32/unaligned.h b/include/asm-avr32/unaligned.h index 3042723fcbfd..36f5fd430543 100644 --- a/include/asm-avr32/unaligned.h +++ b/include/asm-avr32/unaligned.h @@ -7,19 +7,10 @@ * words, but halfwords must be halfword-aligned, and doublewords must * be word-aligned. * - * TODO: Make all this CPU-specific and optimize. + * However, swapped word loads must be word-aligned so we can't + * optimize word loads in general. */ -#include <linux/string.h> - -/* Use memmove here, so gcc does not insert a __builtin_memcpy. */ - -#define get_unaligned(ptr) \ - ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; }) - -#define put_unaligned(val, ptr) \ - ({ __typeof__(*(ptr)) __tmp = (val); \ - memmove((ptr), &__tmp, sizeof(*(ptr))); \ - (void)0; }) +#include <asm-generic/unaligned.h> #endif /* __ASM_AVR32_UNALIGNED_H */ diff --git a/include/asm-blackfin/fb.h b/include/asm-blackfin/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-blackfin/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-cris/a.out.h b/include/asm-cris/a.out.h index 770734ce54a6..919b34a084f8 100644 --- a/include/asm-cris/a.out.h +++ b/include/asm-cris/a.out.h @@ -8,6 +8,7 @@ /* grabbed from the intel stuff */ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP struct exec diff --git a/include/asm-cris/fb.h b/include/asm-cris/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-cris/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-cris/page.h b/include/asm-cris/page.h index 9f13c32552bf..0648e3153f81 100644 --- a/include/asm-cris/page.h +++ b/include/asm-cris/page.h @@ -20,7 +20,8 @@ #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE /* diff --git a/include/asm-frv/fb.h b/include/asm-frv/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-frv/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-frv/mem-layout.h b/include/asm-frv/mem-layout.h index a025dd4514e7..aaf2a773d9d3 100644 --- a/include/asm-frv/mem-layout.h +++ b/include/asm-frv/mem-layout.h @@ -60,6 +60,7 @@ */ #define BRK_BASE __UL(2 * 1024 * 1024 + PAGE_SIZE) #define STACK_TOP __UL(2 * 1024 * 1024) +#define STACK_TOP_MAX STACK_TOP /* userspace process size */ #ifdef CONFIG_MMU diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h index adde69985255..147e995bec24 100644 --- a/include/asm-frv/pgtable.h +++ b/include/asm-frv/pgtable.h @@ -388,13 +388,6 @@ static inline pte_t pte_mkdirty(pte_t pte) { (pte).pte |= _PAGE_DIRTY; return pt static inline pte_t pte_mkyoung(pte_t pte) { (pte).pte |= _PAGE_ACCESSED; return pte; } static inline pte_t pte_mkwrite(pte_t pte) { (pte).pte &= ~_PAGE_WP; return pte; } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - int i = test_and_clear_bit(_PAGE_BIT_DIRTY, ptep); - asm volatile("dcf %M0" :: "U"(*ptep)); - return i; -} - static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { int i = test_and_clear_bit(_PAGE_BIT_ACCESSED, ptep); @@ -504,7 +497,6 @@ static inline int pte_file(pte_t pte) remap_pfn_range(vma, vaddr, pfn, size, prot) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 7f30cce52857..344e3091af24 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -28,7 +28,7 @@ struct bug_entry { #endif #ifndef HAVE_ARCH_BUG_ON -#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0) +#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) #endif #ifndef HAVE_ARCH_WARN_ON diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index d984a9041436..d85172e9ed45 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -14,6 +14,11 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; #define DEFINE_PER_CPU(type, name) \ __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + __typeof__(type) per_cpu__##name \ + ____cacheline_aligned_in_smp + /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*({ \ extern int simple_identifier_##var(void); \ @@ -34,6 +39,9 @@ do { \ #define DEFINE_PER_CPU(type, name) \ __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + DEFINE_PER_CPU(type, name) + #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var #define __raw_get_cpu_var(var) per_cpu__##var diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 7d7bcf990e99..f605e8d0eed3 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -3,25 +3,6 @@ #ifndef __ASSEMBLY__ -#ifndef __HAVE_ARCH_PTEP_ESTABLISH -/* - * Establish a new mapping: - * - flush the old one - * - update the page tables - * - inform the TLB about the new one - * - * We hold the mm semaphore for reading, and the pte lock. - * - * Note: the old pte is known to not be writable, so we don't need to - * worry about dirty bits etc getting lost. - */ -#define ptep_establish(__vma, __address, __ptep, __entry) \ -do { \ - set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \ - flush_tlb_page(__vma, __address); \ -} while (0) -#endif - #ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS /* * Largely same as above, but only sets the access flags (dirty, @@ -68,31 +49,6 @@ do { \ }) #endif -#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define ptep_test_and_clear_dirty(__vma, __address, __ptep) \ -({ \ - pte_t __pte = *__ptep; \ - int r = 1; \ - if (!pte_dirty(__pte)) \ - r = 0; \ - else \ - set_pte_at((__vma)->vm_mm, (__address), (__ptep), \ - pte_mkclean(__pte)); \ - r; \ -}) -#endif - -#ifndef __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH -#define ptep_clear_flush_dirty(__vma, __address, __ptep) \ -({ \ - int __dirty; \ - __dirty = ptep_test_and_clear_dirty(__vma, __address, __ptep); \ - if (__dirty) \ - flush_tlb_page(__vma, __address); \ - __dirty; \ -}) -#endif - #ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR #define ptep_get_and_clear(__mm, __address, __ptep) \ ({ \ diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h index 09ec447fe2af..16a466e50681 100644 --- a/include/asm-generic/unaligned.h +++ b/include/asm-generic/unaligned.h @@ -18,7 +18,8 @@ #define get_unaligned(ptr) \ __get_unaligned((ptr), sizeof(*(ptr))) #define put_unaligned(x,ptr) \ - __put_unaligned((__u64)(x), (ptr), sizeof(*(ptr))) + ((void)sizeof(*(ptr)=(x)),\ + __put_unaligned((__force __u64)(x), (ptr), sizeof(*(ptr)))) /* * This function doesn't actually exist. The idea is that when @@ -95,21 +96,21 @@ static inline void __ustw(__u16 val, __u16 *addr) default: \ bad_unaligned_access_length(); \ }; \ - (__typeof__(*(ptr)))val; \ + (__force __typeof__(*(ptr)))val; \ }) #define __put_unaligned(val, ptr, size) \ -do { \ +({ \ void *__gu_p = ptr; \ switch (size) { \ case 1: \ - *(__u8 *)__gu_p = val; \ + *(__u8 *)__gu_p = (__force __u8)val; \ break; \ case 2: \ - __ustw(val, __gu_p); \ + __ustw((__force __u16)val, __gu_p); \ break; \ case 4: \ - __ustl(val, __gu_p); \ + __ustl((__force __u32)val, __gu_p); \ break; \ case 8: \ __ustq(val, __gu_p); \ @@ -117,6 +118,7 @@ do { \ default: \ bad_unaligned_access_length(); \ }; \ -} while(0) + (void)0; \ +}) #endif /* _ASM_GENERIC_UNALIGNED_H */ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 84155eb67f1d..0240e0506a07 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -224,7 +224,11 @@ } #define NOTES \ - .notes : { *(.note.*) } :note + .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start_notes) = .; \ + *(.note.*) \ + VMLINUX_SYMBOL(__stop_notes) = .; \ + } #define INITCALLS \ *(.initcall0.init) \ @@ -245,3 +249,11 @@ *(.initcall7.init) \ *(.initcall7s.init) +#define PERCPU(align) \ + . = ALIGN(align); \ + __per_cpu_start = .; \ + .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \ + *(.data.percpu) \ + *(.data.percpu.shared_aligned) \ + } \ + __per_cpu_end = .; diff --git a/include/asm-h8300/a.out.h b/include/asm-h8300/a.out.h index 3c70939f9f00..aa5d22778235 100644 --- a/include/asm-h8300/a.out.h +++ b/include/asm-h8300/a.out.h @@ -20,6 +20,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-h8300/fb.h b/include/asm-h8300/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-h8300/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-h8300/page.h b/include/asm-h8300/page.h index 3b4f2903f91d..c8cc81a3aca5 100644 --- a/include/asm-h8300/page.h +++ b/include/asm-h8300/page.h @@ -22,7 +22,8 @@ #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE /* diff --git a/include/asm-i386/a.out.h b/include/asm-i386/a.out.h index ab17bb8e5465..851a60f8258c 100644 --- a/include/asm-i386/a.out.h +++ b/include/asm-i386/a.out.h @@ -20,6 +20,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-i386/fb.h b/include/asm-i386/fb.h new file mode 100644 index 000000000000..d1c6297d4a61 --- /dev/null +++ b/include/asm-i386/fb.h @@ -0,0 +1,17 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +extern int fb_is_primary_device(struct fb_info *info); + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + if (boot_cpu_data.x86 > 3) + pgprot_val(vma->vm_page_prot) |= _PAGE_PCD; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-i386/irq.h b/include/asm-i386/irq.h index 9e15ce0006eb..36f310632c49 100644 --- a/include/asm-i386/irq.h +++ b/include/asm-i386/irq.h @@ -41,6 +41,7 @@ extern int irqbalance_disable(char *str); extern void fixup_irqs(cpumask_t map); #endif +unsigned int do_IRQ(struct pt_regs *regs); void init_IRQ(void); void __init native_init_IRQ(void); diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index 8774d06689da..06f7303c30ca 100644 --- a/include/asm-i386/kprobes.h +++ b/include/asm-i386/kprobes.h @@ -42,7 +42,6 @@ typedef u8 kprobe_opcode_t; ? (MAX_STACK_SIZE) \ : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) -#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES #define ARCH_INACTIVE_KPROBE_COUNT 0 #define flush_insn_slot(p) do { } while (0) diff --git a/include/asm-i386/mach-default/irq_vectors_limits.h b/include/asm-i386/mach-default/irq_vectors_limits.h index 7f161e760be6..a90c7a60109f 100644 --- a/include/asm-i386/mach-default/irq_vectors_limits.h +++ b/include/asm-i386/mach-default/irq_vectors_limits.h @@ -1,7 +1,7 @@ #ifndef _ASM_IRQ_VECTORS_LIMITS_H #define _ASM_IRQ_VECTORS_LIMITS_H -#ifdef CONFIG_X86_IO_APIC +#if defined(CONFIG_X86_IO_APIC) || defined(CONFIG_PARAVIRT) #define NR_IRQS 224 # if (224 >= 32 * NR_CPUS) # define NR_IRQ_VECTORS NR_IRQS diff --git a/include/asm-i386/mmu_context.h b/include/asm-i386/mmu_context.h index 8198d1cca1f3..7eb0b0b1fb3c 100644 --- a/include/asm-i386/mmu_context.h +++ b/include/asm-i386/mmu_context.h @@ -32,6 +32,8 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) #endif } +void leave_mm(unsigned long cpu); + static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) diff --git a/include/asm-i386/page.h b/include/asm-i386/page.h index 818ac8bf01e2..99cf5d3692a9 100644 --- a/include/asm-i386/page.h +++ b/include/asm-i386/page.h @@ -34,7 +34,8 @@ #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE /* diff --git a/include/asm-i386/paravirt.h b/include/asm-i386/paravirt.h index 7f846a7d6bcc..7df88be2dd9e 100644 --- a/include/asm-i386/paravirt.h +++ b/include/asm-i386/paravirt.h @@ -52,6 +52,8 @@ struct paravirt_ops /* Basic arch-specific setup */ void (*arch_setup)(void); char *(*memory_setup)(void); + void (*post_allocator_init)(void); + void (*init_IRQ)(void); void (*time_init)(void); @@ -116,7 +118,7 @@ struct paravirt_ops u64 (*read_tsc)(void); u64 (*read_pmc)(void); - u64 (*get_scheduled_cycles)(void); + unsigned long long (*sched_clock)(void); unsigned long (*get_cpu_khz)(void); /* Segment descriptor handling */ @@ -173,7 +175,7 @@ struct paravirt_ops unsigned long va); /* Hooks for allocating/releasing pagetable pages */ - void (*alloc_pt)(u32 pfn); + void (*alloc_pt)(struct mm_struct *mm, u32 pfn); void (*alloc_pd)(u32 pfn); void (*alloc_pd_clone)(u32 pfn, u32 clonepfn, u32 start, u32 count); void (*release_pt)(u32 pfn); @@ -260,6 +262,7 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *site, unsigned len) unsigned paravirt_patch_insns(void *site, unsigned len, const char *start, const char *end); +int paravirt_disable_iospace(void); /* * This generates an indirect call based on the operation type number. @@ -563,7 +566,10 @@ static inline u64 paravirt_read_tsc(void) #define rdtscll(val) (val = paravirt_read_tsc()) -#define get_scheduled_cycles(val) (val = paravirt_ops.get_scheduled_cycles()) +static inline unsigned long long paravirt_sched_clock(void) +{ + return PVOP_CALL0(unsigned long long, sched_clock); +} #define calculate_cpu_khz() (paravirt_ops.get_cpu_khz()) #define write_tsc(val1,val2) wrmsr(0x10, val1, val2) @@ -669,6 +675,12 @@ static inline void setup_secondary_clock(void) } #endif +static inline void paravirt_post_allocator_init(void) +{ + if (paravirt_ops.post_allocator_init) + (*paravirt_ops.post_allocator_init)(); +} + static inline void paravirt_pagetable_setup_start(pgd_t *base) { if (paravirt_ops.pagetable_setup_start) @@ -725,9 +737,9 @@ static inline void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, PVOP_VCALL3(flush_tlb_others, &cpumask, mm, va); } -static inline void paravirt_alloc_pt(unsigned pfn) +static inline void paravirt_alloc_pt(struct mm_struct *mm, unsigned pfn) { - PVOP_VCALL1(alloc_pt, pfn); + PVOP_VCALL2(alloc_pt, mm, pfn); } static inline void paravirt_release_pt(unsigned pfn) { diff --git a/include/asm-i386/percpu.h b/include/asm-i386/percpu.h index f54830b5d5ac..a7ebd436f3cc 100644 --- a/include/asm-i386/percpu.h +++ b/include/asm-i386/percpu.h @@ -54,6 +54,11 @@ extern unsigned long __per_cpu_offset[]; #define DEFINE_PER_CPU(type, name) \ __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + __typeof__(type) per_cpu__##name \ + ____cacheline_aligned_in_smp + /* We can use this directly for local CPU (faster). */ DECLARE_PER_CPU(unsigned long, this_cpu_off); diff --git a/include/asm-i386/pgalloc.h b/include/asm-i386/pgalloc.h index d07b7afc2692..f2fc33ceb9f2 100644 --- a/include/asm-i386/pgalloc.h +++ b/include/asm-i386/pgalloc.h @@ -7,7 +7,7 @@ #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else -#define paravirt_alloc_pt(pfn) do { } while (0) +#define paravirt_alloc_pt(mm, pfn) do { } while (0) #define paravirt_alloc_pd(pfn) do { } while (0) #define paravirt_alloc_pd(pfn) do { } while (0) #define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) do { } while (0) @@ -17,13 +17,13 @@ #define pmd_populate_kernel(mm, pmd, pte) \ do { \ - paravirt_alloc_pt(__pa(pte) >> PAGE_SHIFT); \ + paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT); \ set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))); \ } while (0) #define pmd_populate(mm, pmd, pte) \ do { \ - paravirt_alloc_pt(page_to_pfn(pte)); \ + paravirt_alloc_pt(mm, page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ (unsigned long long) PAGE_SHIFT))); \ diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index 01734e05e63b..c7fefa6b12fd 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -289,17 +289,6 @@ static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep) __changed; \ }) -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define ptep_test_and_clear_dirty(vma, addr, ptep) ({ \ - int __ret = 0; \ - if (pte_dirty(*(ptep))) \ - __ret = test_and_clear_bit(_PAGE_BIT_DIRTY, \ - &(ptep)->pte_low); \ - if (__ret) \ - pte_update((vma)->vm_mm, addr, ptep); \ - __ret; \ -}) - #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define ptep_test_and_clear_young(vma, addr, ptep) ({ \ int __ret = 0; \ @@ -311,27 +300,6 @@ static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep) __ret; \ }) -/* - * Rules for using ptep_establish: the pte MUST be a user pte, and - * must be a present->present transition. - */ -#define __HAVE_ARCH_PTEP_ESTABLISH -#define ptep_establish(vma, address, ptep, pteval) \ -do { \ - set_pte_present((vma)->vm_mm, address, ptep, pteval); \ - flush_tlb_page(vma, address); \ -} while (0) - -#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH -#define ptep_clear_flush_dirty(vma, address, ptep) \ -({ \ - int __dirty; \ - __dirty = ptep_test_and_clear_dirty((vma), (address), (ptep)); \ - if (__dirty) \ - flush_tlb_page(vma, address); \ - __dirty; \ -}) - #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH #define ptep_clear_flush_young(vma, address, ptep) \ ({ \ diff --git a/include/asm-i386/setup.h b/include/asm-i386/setup.h index 0d5bff9dc4a5..7862fe858a9e 100644 --- a/include/asm-i386/setup.h +++ b/include/asm-i386/setup.h @@ -81,6 +81,10 @@ void __init add_memory_region(unsigned long long start, extern unsigned long init_pg_tables_end; +#ifndef CONFIG_PARAVIRT +#define paravirt_post_allocator_init() do {} while (0) +#endif + #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h index 0c7132787062..1f73bde165b1 100644 --- a/include/asm-i386/smp.h +++ b/include/asm-i386/smp.h @@ -43,9 +43,12 @@ extern u8 x86_cpu_to_apicid[]; #define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu] +extern void set_cpu_sibling_map(int cpu); + #ifdef CONFIG_HOTPLUG_CPU extern void cpu_exit_clear(void); extern void cpu_uninit(void); +extern void remove_siblinginfo(int cpu); #endif struct smp_ops @@ -129,6 +132,8 @@ extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); extern unsigned int num_processors; +void __cpuinit smp_store_cpu_info(int id); + #endif /* !__ASSEMBLY__ */ #else /* CONFIG_SMP */ diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h index 153770e25faa..51a713e33a9e 100644 --- a/include/asm-i386/timer.h +++ b/include/asm-i386/timer.h @@ -15,8 +15,38 @@ extern int no_sync_cmos_clock; extern int recalibrate_cpu_khz(void); #ifndef CONFIG_PARAVIRT -#define get_scheduled_cycles(val) rdtscll(val) #define calculate_cpu_khz() native_calculate_cpu_khz() #endif +/* Accellerators for sched_clock() + * convert from cycles(64bits) => nanoseconds (64bits) + * basic equation: + * ns = cycles / (freq / ns_per_sec) + * ns = cycles * (ns_per_sec / freq) + * ns = cycles * (10^9 / (cpu_khz * 10^3)) + * ns = cycles * (10^6 / cpu_khz) + * + * Then we use scaling math (suggested by george@mvista.com) to get: + * ns = cycles * (10^6 * SC / cpu_khz) / SC + * ns = cycles * cyc2ns_scale / SC + * + * And since SC is a constant power of two, we can convert the div + * into a shift. + * + * We can use khz divisor instead of mhz to keep a better percision, since + * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits. + * (mathieu.desnoyers@polymtl.ca) + * + * -johnstul@us.ibm.com "math is hard, lets go shopping!" + */ +extern unsigned long cyc2ns_scale __read_mostly; + +#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ + +static inline unsigned long long cycles_2_ns(unsigned long long cyc) +{ + return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; +} + + #endif diff --git a/include/asm-i386/tsc.h b/include/asm-i386/tsc.h index 62c091ffcccc..a4d806610b7f 100644 --- a/include/asm-i386/tsc.h +++ b/include/asm-i386/tsc.h @@ -63,6 +63,7 @@ extern void tsc_init(void); extern void mark_tsc_unstable(char *reason); extern int unsynchronized_tsc(void); extern void init_tsc_clocksource(void); +int check_tsc_unstable(void); /* * Boot-time check whether the TSCs are synchronized across diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h index e84ace1ec8bf..9b15545eb9b5 100644 --- a/include/asm-i386/unistd.h +++ b/include/asm-i386/unistd.h @@ -329,10 +329,11 @@ #define __NR_signalfd 321 #define __NR_timerfd 322 #define __NR_eventfd 323 +#define __NR_fallocate 324 #ifdef __KERNEL__ -#define NR_syscalls 324 +#define NR_syscalls 325 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/include/asm-i386/vmi_time.h b/include/asm-i386/vmi_time.h index 213930b995cb..478188130328 100644 --- a/include/asm-i386/vmi_time.h +++ b/include/asm-i386/vmi_time.h @@ -49,7 +49,7 @@ extern struct vmi_timer_ops { extern void __init vmi_time_init(void); extern unsigned long vmi_get_wallclock(void); extern int vmi_set_wallclock(unsigned long now); -extern unsigned long long vmi_get_sched_cycles(void); +extern unsigned long long vmi_sched_clock(void); extern unsigned long vmi_cpu_khz(void); #ifdef CONFIG_X86_LOCAL_APIC diff --git a/include/asm-i386/xen/hypercall.h b/include/asm-i386/xen/hypercall.h new file mode 100644 index 000000000000..bc0ee7d961ca --- /dev/null +++ b/include/asm-i386/xen/hypercall.h @@ -0,0 +1,413 @@ +/****************************************************************************** + * hypercall.h + * + * Linux-specific hypervisor handling. + * + * Copyright (c) 2002-2004, K A Fraser + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef __HYPERCALL_H__ +#define __HYPERCALL_H__ + +#include <linux/errno.h> +#include <linux/string.h> + +#include <xen/interface/xen.h> +#include <xen/interface/sched.h> +#include <xen/interface/physdev.h> + +extern struct { char _entry[32]; } hypercall_page[]; + +#define _hypercall0(type, name) \ +({ \ + long __res; \ + asm volatile ( \ + "call %[call]" \ + : "=a" (__res) \ + : [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ + : "memory" ); \ + (type)__res; \ +}) + +#define _hypercall1(type, name, a1) \ +({ \ + long __res, __ign1; \ + asm volatile ( \ + "call %[call]" \ + : "=a" (__res), "=b" (__ign1) \ + : "1" ((long)(a1)), \ + [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ + : "memory" ); \ + (type)__res; \ +}) + +#define _hypercall2(type, name, a1, a2) \ +({ \ + long __res, __ign1, __ign2; \ + asm volatile ( \ + "call %[call]" \ + : "=a" (__res), "=b" (__ign1), "=c" (__ign2) \ + : "1" ((long)(a1)), "2" ((long)(a2)), \ + [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ + : "memory" ); \ + (type)__res; \ +}) + +#define _hypercall3(type, name, a1, a2, a3) \ +({ \ + long __res, __ign1, __ign2, __ign3; \ + asm volatile ( \ + "call %[call]" \ + : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \ + "=d" (__ign3) \ + : "1" ((long)(a1)), "2" ((long)(a2)), \ + "3" ((long)(a3)), \ + [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ + : "memory" ); \ + (type)__res; \ +}) + +#define _hypercall4(type, name, a1, a2, a3, a4) \ +({ \ + long __res, __ign1, __ign2, __ign3, __ign4; \ + asm volatile ( \ + "call %[call]" \ + : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \ + "=d" (__ign3), "=S" (__ign4) \ + : "1" ((long)(a1)), "2" ((long)(a2)), \ + "3" ((long)(a3)), "4" ((long)(a4)), \ + [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ + : "memory" ); \ + (type)__res; \ +}) + +#define _hypercall5(type, name, a1, a2, a3, a4, a5) \ +({ \ + long __res, __ign1, __ign2, __ign3, __ign4, __ign5; \ + asm volatile ( \ + "call %[call]" \ + : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \ + "=d" (__ign3), "=S" (__ign4), "=D" (__ign5) \ + : "1" ((long)(a1)), "2" ((long)(a2)), \ + "3" ((long)(a3)), "4" ((long)(a4)), \ + "5" ((long)(a5)), \ + [call] "m" (hypercall_page[__HYPERVISOR_##name]) \ + : "memory" ); \ + (type)__res; \ +}) + +static inline int +HYPERVISOR_set_trap_table(struct trap_info *table) +{ + return _hypercall1(int, set_trap_table, table); +} + +static inline int +HYPERVISOR_mmu_update(struct mmu_update *req, int count, + int *success_count, domid_t domid) +{ + return _hypercall4(int, mmu_update, req, count, success_count, domid); +} + +static inline int +HYPERVISOR_mmuext_op(struct mmuext_op *op, int count, + int *success_count, domid_t domid) +{ + return _hypercall4(int, mmuext_op, op, count, success_count, domid); +} + +static inline int +HYPERVISOR_set_gdt(unsigned long *frame_list, int entries) +{ + return _hypercall2(int, set_gdt, frame_list, entries); +} + +static inline int +HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp) +{ + return _hypercall2(int, stack_switch, ss, esp); +} + +static inline int +HYPERVISOR_set_callbacks(unsigned long event_selector, + unsigned long event_address, + unsigned long failsafe_selector, + unsigned long failsafe_address) +{ + return _hypercall4(int, set_callbacks, + event_selector, event_address, + failsafe_selector, failsafe_address); +} + +static inline int +HYPERVISOR_fpu_taskswitch(int set) +{ + return _hypercall1(int, fpu_taskswitch, set); +} + +static inline int +HYPERVISOR_sched_op(int cmd, unsigned long arg) +{ + return _hypercall2(int, sched_op, cmd, arg); +} + +static inline long +HYPERVISOR_set_timer_op(u64 timeout) +{ + unsigned long timeout_hi = (unsigned long)(timeout>>32); + unsigned long timeout_lo = (unsigned long)timeout; + return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi); +} + +static inline int +HYPERVISOR_set_debugreg(int reg, unsigned long value) +{ + return _hypercall2(int, set_debugreg, reg, value); +} + +static inline unsigned long +HYPERVISOR_get_debugreg(int reg) +{ + return _hypercall1(unsigned long, get_debugreg, reg); +} + +static inline int +HYPERVISOR_update_descriptor(u64 ma, u64 desc) +{ + return _hypercall4(int, update_descriptor, ma, ma>>32, desc, desc>>32); +} + +static inline int +HYPERVISOR_memory_op(unsigned int cmd, void *arg) +{ + return _hypercall2(int, memory_op, cmd, arg); +} + +static inline int +HYPERVISOR_multicall(void *call_list, int nr_calls) +{ + return _hypercall2(int, multicall, call_list, nr_calls); +} + +static inline int +HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val, + unsigned long flags) +{ + unsigned long pte_hi = 0; +#ifdef CONFIG_X86_PAE + pte_hi = new_val.pte_high; +#endif + return _hypercall4(int, update_va_mapping, va, + new_val.pte_low, pte_hi, flags); +} + +static inline int +HYPERVISOR_event_channel_op(int cmd, void *arg) +{ + int rc = _hypercall2(int, event_channel_op, cmd, arg); + if (unlikely(rc == -ENOSYS)) { + struct evtchn_op op; + op.cmd = cmd; + memcpy(&op.u, arg, sizeof(op.u)); + rc = _hypercall1(int, event_channel_op_compat, &op); + memcpy(arg, &op.u, sizeof(op.u)); + } + return rc; +} + +static inline int +HYPERVISOR_xen_version(int cmd, void *arg) +{ + return _hypercall2(int, xen_version, cmd, arg); +} + +static inline int +HYPERVISOR_console_io(int cmd, int count, char *str) +{ + return _hypercall3(int, console_io, cmd, count, str); +} + +static inline int +HYPERVISOR_physdev_op(int cmd, void *arg) +{ + int rc = _hypercall2(int, physdev_op, cmd, arg); + if (unlikely(rc == -ENOSYS)) { + struct physdev_op op; + op.cmd = cmd; + memcpy(&op.u, arg, sizeof(op.u)); + rc = _hypercall1(int, physdev_op_compat, &op); + memcpy(arg, &op.u, sizeof(op.u)); + } + return rc; +} + +static inline int +HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count) +{ + return _hypercall3(int, grant_table_op, cmd, uop, count); +} + +static inline int +HYPERVISOR_update_va_mapping_otherdomain(unsigned long va, pte_t new_val, + unsigned long flags, domid_t domid) +{ + unsigned long pte_hi = 0; +#ifdef CONFIG_X86_PAE + pte_hi = new_val.pte_high; +#endif + return _hypercall5(int, update_va_mapping_otherdomain, va, + new_val.pte_low, pte_hi, flags, domid); +} + +static inline int +HYPERVISOR_vm_assist(unsigned int cmd, unsigned int type) +{ + return _hypercall2(int, vm_assist, cmd, type); +} + +static inline int +HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args) +{ + return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args); +} + +static inline int +HYPERVISOR_suspend(unsigned long srec) +{ + return _hypercall3(int, sched_op, SCHEDOP_shutdown, + SHUTDOWN_suspend, srec); +} + +static inline int +HYPERVISOR_nmi_op(unsigned long op, unsigned long arg) +{ + return _hypercall2(int, nmi_op, op, arg); +} + +static inline void +MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va, + pte_t new_val, unsigned long flags) +{ + mcl->op = __HYPERVISOR_update_va_mapping; + mcl->args[0] = va; +#ifdef CONFIG_X86_PAE + mcl->args[1] = new_val.pte_low; + mcl->args[2] = new_val.pte_high; +#else + mcl->args[1] = new_val.pte_low; + mcl->args[2] = 0; +#endif + mcl->args[3] = flags; +} + +static inline void +MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd, + void *uop, unsigned int count) +{ + mcl->op = __HYPERVISOR_grant_table_op; + mcl->args[0] = cmd; + mcl->args[1] = (unsigned long)uop; + mcl->args[2] = count; +} + +static inline void +MULTI_update_va_mapping_otherdomain(struct multicall_entry *mcl, unsigned long va, + pte_t new_val, unsigned long flags, + domid_t domid) +{ + mcl->op = __HYPERVISOR_update_va_mapping_otherdomain; + mcl->args[0] = va; +#ifdef CONFIG_X86_PAE + mcl->args[1] = new_val.pte_low; + mcl->args[2] = new_val.pte_high; +#else + mcl->args[1] = new_val.pte_low; + mcl->args[2] = 0; +#endif + mcl->args[3] = flags; + mcl->args[4] = domid; +} + +static inline void +MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr, + struct desc_struct desc) +{ + mcl->op = __HYPERVISOR_update_descriptor; + mcl->args[0] = maddr; + mcl->args[1] = maddr >> 32; + mcl->args[2] = desc.a; + mcl->args[3] = desc.b; +} + +static inline void +MULTI_memory_op(struct multicall_entry *mcl, unsigned int cmd, void *arg) +{ + mcl->op = __HYPERVISOR_memory_op; + mcl->args[0] = cmd; + mcl->args[1] = (unsigned long)arg; +} + +static inline void +MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req, + int count, int *success_count, domid_t domid) +{ + mcl->op = __HYPERVISOR_mmu_update; + mcl->args[0] = (unsigned long)req; + mcl->args[1] = count; + mcl->args[2] = (unsigned long)success_count; + mcl->args[3] = domid; +} + +static inline void +MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count, + int *success_count, domid_t domid) +{ + mcl->op = __HYPERVISOR_mmuext_op; + mcl->args[0] = (unsigned long)op; + mcl->args[1] = count; + mcl->args[2] = (unsigned long)success_count; + mcl->args[3] = domid; +} + +static inline void +MULTI_set_gdt(struct multicall_entry *mcl, unsigned long *frames, int entries) +{ + mcl->op = __HYPERVISOR_set_gdt; + mcl->args[0] = (unsigned long)frames; + mcl->args[1] = entries; +} + +static inline void +MULTI_stack_switch(struct multicall_entry *mcl, + unsigned long ss, unsigned long esp) +{ + mcl->op = __HYPERVISOR_stack_switch; + mcl->args[0] = ss; + mcl->args[1] = esp; +} + +#endif /* __HYPERCALL_H__ */ diff --git a/include/asm-i386/xen/hypervisor.h b/include/asm-i386/xen/hypervisor.h new file mode 100644 index 000000000000..8e15dd28c91f --- /dev/null +++ b/include/asm-i386/xen/hypervisor.h @@ -0,0 +1,73 @@ +/****************************************************************************** + * hypervisor.h + * + * Linux-specific hypervisor handling. + * + * Copyright (c) 2002-2004, K A Fraser + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef __HYPERVISOR_H__ +#define __HYPERVISOR_H__ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/version.h> + +#include <xen/interface/xen.h> +#include <xen/interface/version.h> + +#include <asm/ptrace.h> +#include <asm/page.h> +#include <asm/desc.h> +#if defined(__i386__) +# ifdef CONFIG_X86_PAE +# include <asm-generic/pgtable-nopud.h> +# else +# include <asm-generic/pgtable-nopmd.h> +# endif +#endif +#include <asm/xen/hypercall.h> + +/* arch/i386/kernel/setup.c */ +extern struct shared_info *HYPERVISOR_shared_info; +extern struct start_info *xen_start_info; +#define is_initial_xendomain() (xen_start_info->flags & SIF_INITDOMAIN) + +/* arch/i386/mach-xen/evtchn.c */ +/* Force a proper event-channel callback from Xen. */ +extern void force_evtchn_callback(void); + +/* Turn jiffies into Xen system time. */ +u64 jiffies_to_st(unsigned long jiffies); + + +#define MULTI_UVMFLAGS_INDEX 3 +#define MULTI_UVMDOMID_INDEX 4 + +#define is_running_on_xen() (xen_start_info ? 1 : 0) + +#endif /* __HYPERVISOR_H__ */ diff --git a/include/asm-i386/xen/interface.h b/include/asm-i386/xen/interface.h new file mode 100644 index 000000000000..165c3968e138 --- /dev/null +++ b/include/asm-i386/xen/interface.h @@ -0,0 +1,188 @@ +/****************************************************************************** + * arch-x86_32.h + * + * Guest OS interface to x86 32-bit Xen. + * + * Copyright (c) 2004, K A Fraser + */ + +#ifndef __XEN_PUBLIC_ARCH_X86_32_H__ +#define __XEN_PUBLIC_ARCH_X86_32_H__ + +#ifdef __XEN__ +#define __DEFINE_GUEST_HANDLE(name, type) \ + typedef struct { type *p; } __guest_handle_ ## name +#else +#define __DEFINE_GUEST_HANDLE(name, type) \ + typedef type * __guest_handle_ ## name +#endif + +#define DEFINE_GUEST_HANDLE_STRUCT(name) \ + __DEFINE_GUEST_HANDLE(name, struct name) +#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name) +#define GUEST_HANDLE(name) __guest_handle_ ## name + +#ifndef __ASSEMBLY__ +/* Guest handles for primitive C types. */ +__DEFINE_GUEST_HANDLE(uchar, unsigned char); +__DEFINE_GUEST_HANDLE(uint, unsigned int); +__DEFINE_GUEST_HANDLE(ulong, unsigned long); +DEFINE_GUEST_HANDLE(char); +DEFINE_GUEST_HANDLE(int); +DEFINE_GUEST_HANDLE(long); +DEFINE_GUEST_HANDLE(void); +#endif + +/* + * SEGMENT DESCRIPTOR TABLES + */ +/* + * A number of GDT entries are reserved by Xen. These are not situated at the + * start of the GDT because some stupid OSes export hard-coded selector values + * in their ABI. These hard-coded values are always near the start of the GDT, + * so Xen places itself out of the way, at the far end of the GDT. + */ +#define FIRST_RESERVED_GDT_PAGE 14 +#define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096) +#define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8) + +/* + * These flat segments are in the Xen-private section of every GDT. Since these + * are also present in the initial GDT, many OSes will be able to avoid + * installing their own GDT. + */ +#define FLAT_RING1_CS 0xe019 /* GDT index 259 */ +#define FLAT_RING1_DS 0xe021 /* GDT index 260 */ +#define FLAT_RING1_SS 0xe021 /* GDT index 260 */ +#define FLAT_RING3_CS 0xe02b /* GDT index 261 */ +#define FLAT_RING3_DS 0xe033 /* GDT index 262 */ +#define FLAT_RING3_SS 0xe033 /* GDT index 262 */ + +#define FLAT_KERNEL_CS FLAT_RING1_CS +#define FLAT_KERNEL_DS FLAT_RING1_DS +#define FLAT_KERNEL_SS FLAT_RING1_SS +#define FLAT_USER_CS FLAT_RING3_CS +#define FLAT_USER_DS FLAT_RING3_DS +#define FLAT_USER_SS FLAT_RING3_SS + +/* And the trap vector is... */ +#define TRAP_INSTR "int $0x82" + +/* + * Virtual addresses beyond this are not modifiable by guest OSes. The + * machine->physical mapping table starts at this address, read-only. + */ +#ifdef CONFIG_X86_PAE +#define __HYPERVISOR_VIRT_START 0xF5800000 +#else +#define __HYPERVISOR_VIRT_START 0xFC000000 +#endif + +#ifndef HYPERVISOR_VIRT_START +#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START) +#endif + +#ifndef machine_to_phys_mapping +#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START) +#endif + +/* Maximum number of virtual CPUs in multi-processor guests. */ +#define MAX_VIRT_CPUS 32 + +#ifndef __ASSEMBLY__ + +/* + * Send an array of these to HYPERVISOR_set_trap_table() + */ +#define TI_GET_DPL(_ti) ((_ti)->flags & 3) +#define TI_GET_IF(_ti) ((_ti)->flags & 4) +#define TI_SET_DPL(_ti, _dpl) ((_ti)->flags |= (_dpl)) +#define TI_SET_IF(_ti, _if) ((_ti)->flags |= ((!!(_if))<<2)) + +struct trap_info { + uint8_t vector; /* exception vector */ + uint8_t flags; /* 0-3: privilege level; 4: clear event enable? */ + uint16_t cs; /* code selector */ + unsigned long address; /* code offset */ +}; +DEFINE_GUEST_HANDLE_STRUCT(trap_info); + +struct cpu_user_regs { + uint32_t ebx; + uint32_t ecx; + uint32_t edx; + uint32_t esi; + uint32_t edi; + uint32_t ebp; + uint32_t eax; + uint16_t error_code; /* private */ + uint16_t entry_vector; /* private */ + uint32_t eip; + uint16_t cs; + uint8_t saved_upcall_mask; + uint8_t _pad0; + uint32_t eflags; /* eflags.IF == !saved_upcall_mask */ + uint32_t esp; + uint16_t ss, _pad1; + uint16_t es, _pad2; + uint16_t ds, _pad3; + uint16_t fs, _pad4; + uint16_t gs, _pad5; +}; +DEFINE_GUEST_HANDLE_STRUCT(cpu_user_regs); + +typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */ + +/* + * The following is all CPU context. Note that the fpu_ctxt block is filled + * in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used. + */ +struct vcpu_guest_context { + /* FPU registers come first so they can be aligned for FXSAVE/FXRSTOR. */ + struct { char x[512]; } fpu_ctxt; /* User-level FPU registers */ +#define VGCF_I387_VALID (1<<0) +#define VGCF_HVM_GUEST (1<<1) +#define VGCF_IN_KERNEL (1<<2) + unsigned long flags; /* VGCF_* flags */ + struct cpu_user_regs user_regs; /* User-level CPU registers */ + struct trap_info trap_ctxt[256]; /* Virtual IDT */ + unsigned long ldt_base, ldt_ents; /* LDT (linear address, # ents) */ + unsigned long gdt_frames[16], gdt_ents; /* GDT (machine frames, # ents) */ + unsigned long kernel_ss, kernel_sp; /* Virtual TSS (only SS1/SP1) */ + unsigned long ctrlreg[8]; /* CR0-CR7 (control registers) */ + unsigned long debugreg[8]; /* DB0-DB7 (debug registers) */ + unsigned long event_callback_cs; /* CS:EIP of event callback */ + unsigned long event_callback_eip; + unsigned long failsafe_callback_cs; /* CS:EIP of failsafe callback */ + unsigned long failsafe_callback_eip; + unsigned long vm_assist; /* VMASST_TYPE_* bitmap */ +}; +DEFINE_GUEST_HANDLE_STRUCT(vcpu_guest_context); + +struct arch_shared_info { + unsigned long max_pfn; /* max pfn that appears in table */ + /* Frame containing list of mfns containing list of mfns containing p2m. */ + unsigned long pfn_to_mfn_frame_list_list; + unsigned long nmi_reason; +}; + +struct arch_vcpu_info { + unsigned long cr2; + unsigned long pad[5]; /* sizeof(struct vcpu_info) == 64 */ +}; + +#endif /* !__ASSEMBLY__ */ + +/* + * Prefix forces emulation of some non-trapping instructions. + * Currently only CPUID. + */ +#ifdef __ASSEMBLY__ +#define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ; +#define XEN_CPUID XEN_EMULATE_PREFIX cpuid +#else +#define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; " +#define XEN_CPUID XEN_EMULATE_PREFIX "cpuid" +#endif + +#endif diff --git a/include/asm-ia64/fb.h b/include/asm-ia64/fb.h new file mode 100644 index 000000000000..89a397cee90a --- /dev/null +++ b/include/asm-ia64/fb.h @@ -0,0 +1,23 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <linux/efi.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start)) + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + else + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-ia64/ioctls.h b/include/asm-ia64/ioctls.h index 31ee521aeb7a..f41b636a0bf6 100644 --- a/include/asm-ia64/ioctls.h +++ b/include/asm-ia64/ioctls.h @@ -53,6 +53,10 @@ #define TIOCSBRK 0x5427 /* BSD compatibility */ #define TIOCCBRK 0x5428 /* BSD compatibility */ #define TIOCGSID 0x5429 /* Return the session ID of FD */ +#define TCGETS2 _IOR('T',0x2A, struct termios2) +#define TCSETS2 _IOW('T',0x2B, struct termios2) +#define TCSETSW2 _IOW('T',0x2C, struct termios2) +#define TCSETSF2 _IOW('T',0x2D, struct termios2) #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 6382e52ec227..067d9dea68f9 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -82,8 +82,6 @@ struct kprobe_ctlblk { struct prev_kprobe prev_kprobe[ARCH_PREV_KPROBE_SZ]; }; -#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry - #define ARCH_SUPPORTS_KRETPROBES #define ARCH_INACTIVE_KPROBE_COUNT 1 diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h index 485759ba9e36..d6345464a2b3 100644 --- a/include/asm-ia64/page.h +++ b/include/asm-ia64/page.h @@ -87,12 +87,13 @@ do { \ } while (0) -#define alloc_zeroed_user_highpage(vma, vaddr) \ -({ \ - struct page *page = alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr); \ - if (page) \ - flush_dcache_page(page); \ - page; \ +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ +({ \ + struct page *page = alloc_page_vma( \ + GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr); \ + if (page) \ + flush_dcache_page(page); \ + page; \ }) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE diff --git a/include/asm-ia64/percpu.h b/include/asm-ia64/percpu.h index fbe5cf3ab8dc..43a7aac414e0 100644 --- a/include/asm-ia64/percpu.h +++ b/include/asm-ia64/percpu.h @@ -29,6 +29,16 @@ __attribute__((__section__(".data.percpu"))) \ __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name +#ifdef CONFIG_SMP +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name \ + ____cacheline_aligned_in_smp +#else +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + DEFINE_PER_CPU(type, name) +#endif + /* * Pretty much a literal copy of asm-generic/percpu.h, except that percpu_modcopy() is an * external routine, to avoid include-hell. diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h index f923d811c421..de6d01e24dd0 100644 --- a/include/asm-ia64/pgtable.h +++ b/include/asm-ia64/pgtable.h @@ -395,22 +395,6 @@ ptep_test_and_clear_young (struct vm_area_struct *vma, unsigned long addr, pte_t #endif } -static inline int -ptep_test_and_clear_dirty (struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ -#ifdef CONFIG_SMP - if (!pte_dirty(*ptep)) - return 0; - return test_and_clear_bit(_PAGE_D_BIT, ptep); -#else - pte_t pte = *ptep; - if (!pte_dirty(pte)) - return 0; - set_pte_at(vma->vm_mm, addr, ptep, pte_mkclean(pte)); - return 1; -#endif -} - static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { @@ -543,8 +527,10 @@ extern void lazy_mmu_prot_update (pte_t pte); # define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __safely_writable) \ ({ \ int __changed = !pte_same(*(__ptep), __entry); \ - if (__changed) \ - ptep_establish(__vma, __addr, __ptep, __entry); \ + if (__changed) { \ + set_pte_at((__vma)->vm_mm, (__addr), __ptep, __entry); \ + flush_tlb_page(__vma, __addr); \ + } \ __changed; \ }) #endif @@ -588,7 +574,6 @@ extern void lazy_mmu_prot_update (pte_t pte); #endif #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h index db81ba406cef..6251c76437d2 100644 --- a/include/asm-ia64/processor.h +++ b/include/asm-ia64/processor.h @@ -295,9 +295,9 @@ struct thread_struct { regs->ar_bspstore = current->thread.rbs_bot; \ regs->ar_fpsr = FPSR_DEFAULT; \ regs->loadrs = 0; \ - regs->r8 = current->mm->dumpable; /* set "don't zap registers" flag */ \ + regs->r8 = get_dumpable(current->mm); /* set "don't zap registers" flag */ \ regs->r12 = new_sp - 16; /* allocate 16 byte scratch area */ \ - if (unlikely(!current->mm->dumpable)) { \ + if (unlikely(!get_dumpable(current->mm))) { \ /* \ * Zap scratch regs to avoid leaking bits between processes with different \ * uid/privileges. \ diff --git a/include/asm-ia64/termbits.h b/include/asm-ia64/termbits.h index 7fae3109ef47..9f162e0089ad 100644 --- a/include/asm-ia64/termbits.h +++ b/include/asm-ia64/termbits.h @@ -149,6 +149,7 @@ struct ktermios { #define HUPCL 0002000 #define CLOCAL 0004000 #define CBAUDEX 0010000 +#define BOTHER 0010000 #define B57600 0010001 #define B115200 0010002 #define B230400 0010003 @@ -164,10 +165,12 @@ struct ktermios { #define B3000000 0010015 #define B3500000 0010016 #define B4000000 0010017 -#define CIBAUD 002003600000 /* input baud rate (not used) */ +#define CIBAUD 002003600000 /* input baud rate */ #define CMSPAR 010000000000 /* mark or space (stick) parity */ #define CRTSCTS 020000000000 /* flow control */ +#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ + /* c_lflag bits */ #define ISIG 0000001 #define ICANON 0000002 diff --git a/include/asm-ia64/termios.h b/include/asm-ia64/termios.h index 08750c2d3607..689d218c0c28 100644 --- a/include/asm-ia64/termios.h +++ b/include/asm-ia64/termios.h @@ -87,8 +87,10 @@ struct termio { copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ }) -#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios)) -#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios)) +#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2)) +#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2)) +#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios)) +#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios)) # endif /* __KERNEL__ */ diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h index 441c9e001776..315f8de950a2 100644 --- a/include/asm-ia64/unistd.h +++ b/include/asm-ia64/unistd.h @@ -292,7 +292,7 @@ #define __NR_sync_file_range 1300 #define __NR_tee 1301 #define __NR_vmsplice 1302 -/* 1303 reserved for move_pages */ +#define __NR_fallocate 1303 #define __NR_getcpu 1304 #define __NR_epoll_pwait 1305 #define __NR_utimensat 1306 diff --git a/include/asm-ia64/ustack.h b/include/asm-ia64/ustack.h index a349467913ea..504167c35b8b 100644 --- a/include/asm-ia64/ustack.h +++ b/include/asm-ia64/ustack.h @@ -11,6 +11,7 @@ /* The absolute hard limit for stack size is 1/2 of the mappable space in the region */ #define MAX_USER_STACK_SIZE (RGN_MAP_LIMIT/2) #define STACK_TOP (0x6000000000000000UL + RGN_MAP_LIMIT) +#define STACK_TOP_MAX STACK_TOP #endif /* Make a default stack size of 2GiB */ diff --git a/include/asm-m32r/a.out.h b/include/asm-m32r/a.out.h index 9a4a5d20160a..6a1b5d42f328 100644 --- a/include/asm-m32r/a.out.h +++ b/include/asm-m32r/a.out.h @@ -20,6 +20,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-m32r/fb.h b/include/asm-m32r/fb.h new file mode 100644 index 000000000000..d92e99cd8c8a --- /dev/null +++ b/include/asm-m32r/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-m32r/page.h b/include/asm-m32r/page.h index 6f6ecf7d14a3..04fd183a2c58 100644 --- a/include/asm-m32r/page.h +++ b/include/asm-m32r/page.h @@ -15,7 +15,8 @@ extern void copy_page(void *to, void *from); #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE /* diff --git a/include/asm-m32r/pgtable.h b/include/asm-m32r/pgtable.h index 35af58c6b812..92d7266783fd 100644 --- a/include/asm-m32r/pgtable.h +++ b/include/asm-m32r/pgtable.h @@ -250,11 +250,6 @@ static inline pte_t pte_mkwrite(pte_t pte) return pte; } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - return test_and_clear_bit(_PAGE_BIT_DIRTY, ptep); -} - static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { return test_and_clear_bit(_PAGE_BIT_ACCESSED, ptep); @@ -348,7 +343,6 @@ static inline void pmd_set(pmd_t * pmdp, pte_t * ptep) remap_pfn_range(vma, vaddr, pfn, size, prot) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-m68k/a.out.h b/include/asm-m68k/a.out.h index eda1662773b8..6fc86a221a94 100644 --- a/include/asm-m68k/a.out.h +++ b/include/asm-m68k/a.out.h @@ -20,6 +20,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-m68k/fb.h b/include/asm-m68k/fb.h new file mode 100644 index 000000000000..380b97ae8157 --- /dev/null +++ b/include/asm-m68k/fb.h @@ -0,0 +1,34 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> +#include <asm/setup.h> + +#ifdef CONFIG_SUN3 +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE; +} +#else +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + if (CPU_IS_020_OR_030) + pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE030; + if (CPU_IS_040_OR_060) { + pgprot_val(vma->vm_page_prot) &= _CACHEMASK040; + /* Use no-cache mode, serialized */ + pgprot_val(vma->vm_page_prot) |= _PAGE_NOCACHE_S; + } +} +#endif /* CONFIG_SUN3 */ + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-m68knommu/fb.h b/include/asm-m68knommu/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-m68knommu/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-m68knommu/irq.h b/include/asm-m68knommu/irq.h index 7b8f874f8429..9373c31ac87d 100644 --- a/include/asm-m68knommu/irq.h +++ b/include/asm-m68knommu/irq.h @@ -1,7 +1,5 @@ -#ifndef _M68K_IRQ_H_ -#define _M68K_IRQ_H_ - -#include <asm/ptrace.h> +#ifndef _M68KNOMMU_IRQ_H_ +#define _M68KNOMMU_IRQ_H_ #ifdef CONFIG_COLDFIRE /* @@ -17,75 +15,12 @@ /* * # of m68k interrupts */ -#define SYS_IRQS 8 -#define NR_IRQS (24+SYS_IRQS) +#define SYS_IRQS 8 +#define NR_IRQS (24 + SYS_IRQS) #endif /* CONFIG_COLDFIRE */ -/* - * Interrupt source definitions - * General interrupt sources are the level 1-7. - * Adding an interrupt service routine for one of these sources - * results in the addition of that routine to a chain of routines. - * Each one is called in succession. Each individual interrupt - * service routine should determine if the device associated with - * that routine requires service. - */ -#define IRQ1 (1) /* level 1 interrupt */ -#define IRQ2 (2) /* level 2 interrupt */ -#define IRQ3 (3) /* level 3 interrupt */ -#define IRQ4 (4) /* level 4 interrupt */ -#define IRQ5 (5) /* level 5 interrupt */ -#define IRQ6 (6) /* level 6 interrupt */ -#define IRQ7 (7) /* level 7 interrupt (non-maskable) */ - -/* - * Machine specific interrupt sources. - * - * Adding an interrupt service routine for a source with this bit - * set indicates a special machine specific interrupt source. - * The machine specific files define these sources. - * - * The IRQ_MACHSPEC bit is now gone - the only thing it did was to - * introduce unnecessary overhead. - * - * All interrupt handling is actually machine specific so it is better - * to use function pointers, as used by the Sparc port, and select the - * interrupt handling functions when initializing the kernel. This way - * we save some unnecessary overhead at run-time. - * 01/11/97 - Jes - */ - -extern void (*mach_enable_irq)(unsigned int); -extern void (*mach_disable_irq)(unsigned int); - -/* - * various flags for request_irq() - the Amiga now uses the standard - * mechanism like all other architectures - IRQF_DISABLED and - * IRQF_SHARED are your friends. - */ -#define IRQ_FLG_LOCK (0x0001) /* handler is not replaceable */ -#define IRQ_FLG_REPLACE (0x0002) /* replace existing handler */ -#define IRQ_FLG_FAST (0x0004) -#define IRQ_FLG_SLOW (0x0008) -#define IRQ_FLG_STD (0x8000) /* internally used */ - -#ifdef CONFIG_M68360 - -#define CPM_INTERRUPT IRQ4 - -/* see MC68360 User's Manual, p. 7-377 */ -#define CPM_VECTOR_BASE 0x04 /* 3 MSbits of CPM vector */ - -#endif /* CONFIG_M68360 */ - -/* - * Some drivers want these entry points - */ -#define enable_irq(x) do { } while (0) -#define disable_irq(x) do { } while (0) -#define disable_irq_nosync(x) disable_irq(x) #define irq_canonicalize(irq) (irq) -#endif /* _M68K_IRQ_H_ */ +#endif /* _M68KNOMMU_IRQ_H_ */ diff --git a/include/asm-m68knommu/irqnode.h b/include/asm-m68knommu/irqnode.h deleted file mode 100644 index 6132a9858b52..000000000000 --- a/include/asm-m68knommu/irqnode.h +++ /dev/null @@ -1,36 +0,0 @@ -#ifndef _M68K_IRQNODE_H_ -#define _M68K_IRQNODE_H_ - -#include <linux/interrupt.h> - -/* - * This structure is used to chain together the ISRs for a particular - * interrupt source (if it supports chaining). - */ -typedef struct irq_node { - irq_handler_t handler; - unsigned long flags; - void *dev_id; - const char *devname; - struct irq_node *next; -} irq_node_t; - -/* - * This structure has only 4 elements for speed reasons - */ -struct irq_entry { - irq_handler_t handler; - unsigned long flags; - void *dev_id; - const char *devname; -}; - -/* count of spurious interrupts */ -extern volatile unsigned int num_spurious; - -/* - * This function returns a new irq_node_t - */ -extern irq_node_t *new_irq_node(void); - -#endif /* _M68K_IRQNODE_H_ */ diff --git a/include/asm-m68knommu/m68360.h b/include/asm-m68knommu/m68360.h index dd11b070884b..eb7d39ef2855 100644 --- a/include/asm-m68knommu/m68360.h +++ b/include/asm-m68knommu/m68360.h @@ -3,3 +3,11 @@ #include "m68360_quicc.h" #include "m68360_enet.h" +#ifdef CONFIG_M68360 + +#define CPM_INTERRUPT 4 + +/* see MC68360 User's Manual, p. 7-377 */ +#define CPM_VECTOR_BASE 0x04 /* 3 MSbits of CPM vector */ + +#endif /* CONFIG_M68360 */ diff --git a/include/asm-m68knommu/page.h b/include/asm-m68knommu/page.h index 2a1b8bdcb29c..9efa0a9851b1 100644 --- a/include/asm-m68knommu/page.h +++ b/include/asm-m68knommu/page.h @@ -22,7 +22,8 @@ #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE /* diff --git a/include/asm-m68knommu/pgtable.h b/include/asm-m68knommu/pgtable.h index 9dfbbc24aa71..e1e6a1d2333a 100644 --- a/include/asm-m68knommu/pgtable.h +++ b/include/asm-m68knommu/pgtable.h @@ -49,7 +49,6 @@ static inline int pte_file(pte_t pte) { return 0; } * These would be in other places but having them here reduces the diffs. */ extern unsigned int kobjsize(const void *objp); -extern int is_in_rom(unsigned long); /* * No page table caches to initialise. diff --git a/include/asm-m68knommu/traps.h b/include/asm-m68knommu/traps.h index f2a81317cc10..d0671e5f8e29 100644 --- a/include/asm-m68knommu/traps.h +++ b/include/asm-m68knommu/traps.h @@ -16,6 +16,10 @@ typedef void (*e_vector)(void); extern e_vector vectors[]; +extern void init_vectors(void); +extern void enable_vector(unsigned int irq); +extern void disable_vector(unsigned int irq); +extern void ack_vector(unsigned int irq); #endif diff --git a/include/asm-m68knommu/uaccess.h b/include/asm-m68knommu/uaccess.h index 62b29b10bc6d..9ed9169a8849 100644 --- a/include/asm-m68knommu/uaccess.h +++ b/include/asm-m68knommu/uaccess.h @@ -15,12 +15,15 @@ #define access_ok(type,addr,size) _access_ok((unsigned long)(addr),(size)) +/* + * It is not enough to just have access_ok check for a real RAM address. + * This would disallow the case of code/ro-data running XIP in flash/rom. + * Ideally we would check the possible flash ranges too, but that is + * currently not so easy. + */ static inline int _access_ok(unsigned long addr, unsigned long size) { - extern unsigned long memory_start, memory_end; - - return (((addr >= memory_start) && (addr+size < memory_end)) || - (is_in_rom(addr) && is_in_rom(addr+size))); + return 1; } /* diff --git a/include/asm-mips/a.out.h b/include/asm-mips/a.out.h index ef33c3f13484..1ad60ba186d0 100644 --- a/include/asm-mips/a.out.h +++ b/include/asm-mips/a.out.h @@ -40,6 +40,7 @@ struct exec #ifdef CONFIG_64BIT #define STACK_TOP (current->thread.mflags & MF_32BIT_ADDR ? TASK_SIZE32 : TASK_SIZE) #endif +#define STACK_TOP_MAX TASK_SIZE #endif diff --git a/include/asm-mips/dec/serial.h b/include/asm-mips/dec/serial.h deleted file mode 100644 index acad75890a05..000000000000 --- a/include/asm-mips/dec/serial.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * include/asm-mips/dec/serial.h - * - * Definitions common to all DECstation serial devices. - * - * Copyright (C) 2004 Maciej W. Rozycki - * - * Based on bits extracted from drivers/tc/zs.h for which - * the following copyrights apply: - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996 Paul Mackerras (Paul.Mackerras@cs.anu.edu.au) - * Copyright (C) Harald Koerfgen - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#ifndef __ASM_MIPS_DEC_SERIAL_H -#define __ASM_MIPS_DEC_SERIAL_H - -struct dec_serial_hook { - int (*init_channel)(void *handle); - void (*init_info)(void *handle); - void (*rx_char)(unsigned char ch, unsigned char fl); - int (*poll_rx_char)(void *handle); - int (*poll_tx_char)(void *handle, unsigned char ch); - unsigned int cflags; -}; - -extern int register_dec_serial_hook(unsigned int channel, - struct dec_serial_hook *hook); -extern int unregister_dec_serial_hook(unsigned int channel); - -#endif /* __ASM_MIPS_DEC_SERIAL_H */ diff --git a/include/asm-mips/fb.h b/include/asm-mips/fb.h new file mode 100644 index 000000000000..bd3f68c9ddfc --- /dev/null +++ b/include/asm-mips/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-mips/sibyte/bcm1480_regs.h b/include/asm-mips/sibyte/bcm1480_regs.h index bda391d3af85..2738c1366f66 100644 --- a/include/asm-mips/sibyte/bcm1480_regs.h +++ b/include/asm-mips/sibyte/bcm1480_regs.h @@ -220,17 +220,25 @@ #define A_BCM1480_DUART(chan) ((((chan)&2) == 0)? A_BCM1480_DUART0 : A_BCM1480_DUART1) #define BCM1480_DUART_CHANREG_SPACING 0x100 -#define A_BCM1480_DUART_CHANREG(chan,reg) (A_BCM1480_DUART(chan) \ - + BCM1480_DUART_CHANREG_SPACING*((chan)&1) \ - + (reg)) -#define R_BCM1480_DUART_CHANREG(chan,reg) (BCM1480_DUART_CHANREG_SPACING*((chan)&1) + (reg)) - -#define R_BCM1480_DUART_IMRREG(chan) (R_DUART_IMR_A + ((chan)&1)*DUART_IMRISR_SPACING) -#define R_BCM1480_DUART_ISRREG(chan) (R_DUART_ISR_A + ((chan)&1)*DUART_IMRISR_SPACING) - -#define A_BCM1480_DUART_IMRREG(chan) (A_BCM1480_DUART(chan) + R_BCM1480_DUART_IMRREG(chan)) -#define A_BCM1480_DUART_ISRREG(chan) (A_BCM1480_DUART(chan) + R_BCM1480_DUART_ISRREG(chan)) -#define A_BCM1480_DUART_IN_PORT(chan) (A_BCM1480_DUART(chan) + R_DUART_INP_ORT) +#define A_BCM1480_DUART_CHANREG(chan, reg) \ + (A_BCM1480_DUART(chan) + \ + BCM1480_DUART_CHANREG_SPACING * (((chan) & 1) + 1) + (reg)) +#define A_BCM1480_DUART_CTRLREG(chan, reg) \ + (A_BCM1480_DUART(chan) + \ + BCM1480_DUART_CHANREG_SPACING * 3 + (reg)) + +#define R_BCM1480_DUART_IMRREG(chan) \ + (R_DUART_IMR_A + ((chan) & 1) * DUART_IMRISR_SPACING) +#define R_BCM1480_DUART_ISRREG(chan) \ + (R_DUART_ISR_A + ((chan) & 1) * DUART_IMRISR_SPACING) + +#define A_BCM1480_DUART_IMRREG(chan) \ + (A_BCM1480_DUART_CTRLREG((chan), R_BCM1480_DUART_IMRREG(chan))) +#define A_BCM1480_DUART_ISRREG(chan) \ + (A_BCM1480_DUART_CTRLREG((chan), R_BCM1480_DUART_ISRREG(chan))) + +#define A_BCM1480_DUART_IN_PORT(chan) \ + (A_BCM1480_DUART_CTRLREG((chan), R_DUART_IN_PORT)) /* * These constants are the absolute addresses. diff --git a/include/asm-mips/sibyte/sb1250_regs.h b/include/asm-mips/sibyte/sb1250_regs.h index da7c188993c9..220b7e94f1bf 100644 --- a/include/asm-mips/sibyte/sb1250_regs.h +++ b/include/asm-mips/sibyte/sb1250_regs.h @@ -272,59 +272,69 @@ ********************************************************************* */ -#if SIBYTE_HDR_FEATURE_1250_112x /* This MC only on 1250 & 112x */ +#if SIBYTE_HDR_FEATURE_1250_112x /* This MC only on 1250 & 112x */ #define R_DUART_NUM_PORTS 2 #define A_DUART 0x0010060000 #define DUART_CHANREG_SPACING 0x100 -#define A_DUART_CHANREG(chan,reg) (A_DUART + DUART_CHANREG_SPACING*(chan) + (reg)) -#define R_DUART_CHANREG(chan,reg) (DUART_CHANREG_SPACING*(chan) + (reg)) + +#define A_DUART_CHANREG(chan, reg) \ + (A_DUART + DUART_CHANREG_SPACING * ((chan) + 1) + (reg)) #endif /* 1250 & 112x */ -#define R_DUART_MODE_REG_1 0x100 -#define R_DUART_MODE_REG_2 0x110 -#define R_DUART_STATUS 0x120 -#define R_DUART_CLK_SEL 0x130 -#define R_DUART_CMD 0x150 -#define R_DUART_RX_HOLD 0x160 -#define R_DUART_TX_HOLD 0x170 +#define R_DUART_MODE_REG_1 0x000 +#define R_DUART_MODE_REG_2 0x010 +#define R_DUART_STATUS 0x020 +#define R_DUART_CLK_SEL 0x030 +#define R_DUART_CMD 0x050 +#define R_DUART_RX_HOLD 0x060 +#define R_DUART_TX_HOLD 0x070 #if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480) -#define R_DUART_FULL_CTL 0x140 -#define R_DUART_OPCR_X 0x180 -#define R_DUART_AUXCTL_X 0x190 -#endif /* 1250 PASS2 || 112x PASS1 || 1480*/ +#define R_DUART_FULL_CTL 0x040 +#define R_DUART_OPCR_X 0x080 +#define R_DUART_AUXCTL_X 0x090 +#endif /* 1250 PASS2 || 112x PASS1 || 1480 */ /* * The IMR and ISR can't be addressed with A_DUART_CHANREG, - * so use this macro instead. + * so use these macros instead. */ -#define R_DUART_AUX_CTRL 0x310 -#define R_DUART_ISR_A 0x320 -#define R_DUART_IMR_A 0x330 -#define R_DUART_ISR_B 0x340 -#define R_DUART_IMR_B 0x350 -#define R_DUART_OUT_PORT 0x360 -#define R_DUART_OPCR 0x370 -#define R_DUART_IN_PORT 0x380 +#if SIBYTE_HDR_FEATURE_1250_112x /* This MC only on 1250 & 112x */ +#define DUART_IMRISR_SPACING 0x20 +#define DUART_INCHNG_SPACING 0x10 -#define R_DUART_SET_OPR 0x3B0 -#define R_DUART_CLEAR_OPR 0x3C0 +#define A_DUART_CTRLREG(reg) \ + (A_DUART + DUART_CHANREG_SPACING * 3 + (reg)) -#define DUART_IMRISR_SPACING 0x20 +#define R_DUART_IMRREG(chan) \ + (R_DUART_IMR_A + (chan) * DUART_IMRISR_SPACING) +#define R_DUART_ISRREG(chan) \ + (R_DUART_ISR_A + (chan) * DUART_IMRISR_SPACING) +#define R_DUART_INCHREG(chan) \ + (R_DUART_IN_CHNG_A + (chan) * DUART_INCHNG_SPACING) -#if SIBYTE_HDR_FEATURE_1250_112x /* This MC only on 1250 & 112x */ -#define R_DUART_IMRREG(chan) (R_DUART_IMR_A + (chan)*DUART_IMRISR_SPACING) -#define R_DUART_ISRREG(chan) (R_DUART_ISR_A + (chan)*DUART_IMRISR_SPACING) - -#define A_DUART_IMRREG(chan) (A_DUART + R_DUART_IMRREG(chan)) -#define A_DUART_ISRREG(chan) (A_DUART + R_DUART_ISRREG(chan)) +#define A_DUART_IMRREG(chan) A_DUART_CTRLREG(R_DUART_IMRREG(chan)) +#define A_DUART_ISRREG(chan) A_DUART_CTRLREG(R_DUART_ISRREG(chan)) +#define A_DUART_INCHREG(chan) A_DUART_CTRLREG(R_DUART_INCHREG(chan)) #endif /* 1250 & 112x */ - +#define R_DUART_AUX_CTRL 0x010 +#define R_DUART_ISR_A 0x020 +#define R_DUART_IMR_A 0x030 +#define R_DUART_ISR_B 0x040 +#define R_DUART_IMR_B 0x050 +#define R_DUART_OUT_PORT 0x060 +#define R_DUART_OPCR 0x070 +#define R_DUART_IN_PORT 0x080 + +#define R_DUART_SET_OPR 0x0B0 +#define R_DUART_CLEAR_OPR 0x0C0 +#define R_DUART_IN_CHNG_A 0x0D0 +#define R_DUART_IN_CHNG_B 0x0E0 /* diff --git a/include/asm-mips/sibyte/sb1250_uart.h b/include/asm-mips/sibyte/sb1250_uart.h index e87045e62bf0..cf74fedcbef1 100644 --- a/include/asm-mips/sibyte/sb1250_uart.h +++ b/include/asm-mips/sibyte/sb1250_uart.h @@ -75,7 +75,8 @@ #define V_DUART_PARITY_MODE_ADD_FIXED V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_ADD_FIXED) #define V_DUART_PARITY_MODE_NONE V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_NONE) -#define M_DUART_ERR_MODE _SB_MAKEMASK1(5) /* must be zero */ +#define M_DUART_TX_IRQ_SEL_TXRDY 0 +#define M_DUART_TX_IRQ_SEL_TXEMPT _SB_MAKEMASK1(5) #define M_DUART_RX_IRQ_SEL_RXRDY 0 #define M_DUART_RX_IRQ_SEL_RXFULL _SB_MAKEMASK1(6) @@ -246,10 +247,13 @@ #define M_DUART_ISR_BRK_A _SB_MAKEMASK1(2) #define M_DUART_ISR_IN_A _SB_MAKEMASK1(3) +#define M_DUART_ISR_ALL_A _SB_MAKEMASK(4,0) + #define M_DUART_ISR_TX_B _SB_MAKEMASK1(4) #define M_DUART_ISR_RX_B _SB_MAKEMASK1(5) #define M_DUART_ISR_BRK_B _SB_MAKEMASK1(6) #define M_DUART_ISR_IN_B _SB_MAKEMASK1(7) +#define M_DUART_ISR_ALL_B _SB_MAKEMASK(4,4) /* * DUART Channel A Interrupt Status Register (Table 10-17) @@ -262,6 +266,7 @@ #define M_DUART_ISR_RX _SB_MAKEMASK1(1) #define M_DUART_ISR_BRK _SB_MAKEMASK1(2) #define M_DUART_ISR_IN _SB_MAKEMASK1(3) +#define M_DUART_ISR_ALL _SB_MAKEMASK(4,0) #define M_DUART_ISR_RESERVED _SB_MAKEMASK(4,4) /* diff --git a/include/asm-parisc/a.out.h b/include/asm-parisc/a.out.h index 2a490cc9ec91..23e2c90943e5 100644 --- a/include/asm-parisc/a.out.h +++ b/include/asm-parisc/a.out.h @@ -23,6 +23,7 @@ struct exec * prumpf */ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX DEFAULT_TASK_SIZE #endif diff --git a/include/asm-parisc/fb.h b/include/asm-parisc/fb.h new file mode 100644 index 000000000000..4d503a023ab2 --- /dev/null +++ b/include/asm-parisc/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE; +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h index 7e222c8ba739..e88cacd63724 100644 --- a/include/asm-parisc/pgtable.h +++ b/include/asm-parisc/pgtable.h @@ -447,21 +447,6 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned #endif } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ -#ifdef CONFIG_SMP - if (!pte_dirty(*ptep)) - return 0; - return test_and_clear_bit(xlate_pabit(_PAGE_DIRTY_BIT), &pte_val(*ptep)); -#else - pte_t pte = *ptep; - if (!pte_dirty(pte)) - return 0; - set_pte_at(vma->vm_mm, addr, ptep, pte_mkclean(pte)); - return 1; -#endif -} - extern spinlock_t pa_dbit_lock; struct mm_struct; @@ -529,7 +514,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, #define HAVE_ARCH_UNMAPPED_AREA #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-powerpc/a.out.h b/include/asm-powerpc/a.out.h index c7393a977364..5c5ea83f9349 100644 --- a/include/asm-powerpc/a.out.h +++ b/include/asm-powerpc/a.out.h @@ -26,9 +26,12 @@ struct exec #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \ STACK_TOP_USER32 : STACK_TOP_USER64) +#define STACK_TOP_MAX STACK_TOP_USER64 + #else /* __powerpc64__ */ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif /* __powerpc64__ */ #endif /* __KERNEL__ */ diff --git a/include/asm-powerpc/fb.h b/include/asm-powerpc/fb.h new file mode 100644 index 000000000000..411af8d17a69 --- /dev/null +++ b/include/asm-powerpc/fb.h @@ -0,0 +1,21 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = phys_mem_access_prot(file, off >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, + vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h index b0e40ff32ee0..8b08b447d6f3 100644 --- a/include/asm-powerpc/kprobes.h +++ b/include/asm-powerpc/kprobes.h @@ -65,20 +65,18 @@ typedef unsigned int kprobe_opcode_t; } else if (name[0] != '.') \ addr = *(kprobe_opcode_t **)addr; \ } else { \ - char dot_name[KSYM_NAME_LEN+1]; \ + char dot_name[KSYM_NAME_LEN]; \ dot_name[0] = '.'; \ dot_name[1] = '\0'; \ - strncat(dot_name, name, KSYM_NAME_LEN); \ + strncat(dot_name, name, KSYM_NAME_LEN - 2); \ addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \ } \ } -#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)((func_descr_t *)pentry) #define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \ IS_TWI(instr) || IS_TDI(instr)) #else /* Use stock kprobe_lookup_name since ppc32 doesn't use function descriptors */ -#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)(pentry) #define is_trap(instr) (IS_TW(instr) || IS_TWI(instr)) #endif diff --git a/include/asm-powerpc/percpu.h b/include/asm-powerpc/percpu.h index 2f2e3024fa61..73dc8ba4010d 100644 --- a/include/asm-powerpc/percpu.h +++ b/include/asm-powerpc/percpu.h @@ -20,6 +20,11 @@ #define DEFINE_PER_CPU(type, name) \ __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + __typeof__(type) per_cpu__##name \ + ____cacheline_aligned_in_smp + /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu))) #define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __my_cpu_offset())) @@ -40,6 +45,8 @@ extern void setup_per_cpu_areas(void); #define DEFINE_PER_CPU(type, name) \ __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + DEFINE_PER_CPU(type, name) #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h index 6c236d4d6262..86a54a4a8a2a 100644 --- a/include/asm-powerpc/pgtable-ppc32.h +++ b/include/asm-powerpc/pgtable-ppc32.h @@ -621,13 +621,6 @@ static inline int __ptep_test_and_clear_young(unsigned int context, unsigned lon #define ptep_test_and_clear_young(__vma, __addr, __ptep) \ __ptep_test_and_clear_young((__vma)->vm_mm->context.id, __addr, __ptep) -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep) -{ - return (pte_update(ptep, (_PAGE_DIRTY | _PAGE_HWWRITE), 0) & _PAGE_DIRTY) != 0; -} - #define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h index 7ca8b5c10019..300f9a199bf2 100644 --- a/include/asm-powerpc/pgtable-ppc64.h +++ b/include/asm-powerpc/pgtable-ppc64.h @@ -292,29 +292,6 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm, __r; \ }) -/* - * On RW/DIRTY bit transitions we can avoid flushing the hpte. For the - * moment we always flush but we need to fix hpte_update and test if the - * optimisation is worth it. - */ -static inline int __ptep_test_and_clear_dirty(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - unsigned long old; - - if ((pte_val(*ptep) & _PAGE_DIRTY) == 0) - return 0; - old = pte_update(mm, addr, ptep, _PAGE_DIRTY, 0); - return (old & _PAGE_DIRTY) != 0; -} -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define ptep_test_and_clear_dirty(__vma, __addr, __ptep) \ -({ \ - int __r; \ - __r = __ptep_test_and_clear_dirty((__vma)->vm_mm, __addr, __ptep); \ - __r; \ -}) - #define __HAVE_ARCH_PTEP_SET_WRPROTECT static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) @@ -342,14 +319,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, __young; \ }) -#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH -#define ptep_clear_flush_dirty(__vma, __address, __ptep) \ -({ \ - int __dirty = __ptep_test_and_clear_dirty((__vma)->vm_mm, __address, \ - __ptep); \ - __dirty; \ -}) - #define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) diff --git a/include/asm-powerpc/systbl.h b/include/asm-powerpc/systbl.h index 1cc3f9cb6f4e..cc6d87228258 100644 --- a/include/asm-powerpc/systbl.h +++ b/include/asm-powerpc/systbl.h @@ -308,6 +308,7 @@ COMPAT_SYS_SPU(move_pages) SYSCALL_SPU(getcpu) COMPAT_SYS(epoll_pwait) COMPAT_SYS_SPU(utimensat) +COMPAT_SYS(fallocate) COMPAT_SYS_SPU(signalfd) COMPAT_SYS_SPU(timerfd) SYSCALL_SPU(eventfd) diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h index f71c6061f1ec..97d82b6a9406 100644 --- a/include/asm-powerpc/unistd.h +++ b/include/asm-powerpc/unistd.h @@ -331,10 +331,11 @@ #define __NR_timerfd 306 #define __NR_eventfd 307 #define __NR_sync_file_range2 308 +#define __NR_fallocate 309 #ifdef __KERNEL__ -#define __NR_syscalls 309 +#define __NR_syscalls 310 #define __NR__exit __NR_exit #define NR_syscalls __NR_syscalls diff --git a/include/asm-ppc/pgtable.h b/include/asm-ppc/pgtable.h index 18aa776313b9..c159315d2c8f 100644 --- a/include/asm-ppc/pgtable.h +++ b/include/asm-ppc/pgtable.h @@ -654,13 +654,6 @@ static inline int __ptep_test_and_clear_young(unsigned int context, unsigned lon #define ptep_test_and_clear_young(__vma, __addr, __ptep) \ __ptep_test_and_clear_young((__vma)->vm_mm->context.id, __addr, __ptep) -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep) -{ - return (pte_update(ptep, (_PAGE_DIRTY | _PAGE_HWWRITE), 0) & _PAGE_DIRTY) != 0; -} - #define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) diff --git a/include/asm-s390/a.out.h b/include/asm-s390/a.out.h index 72adee6ef338..46158dcaf517 100644 --- a/include/asm-s390/a.out.h +++ b/include/asm-s390/a.out.h @@ -32,6 +32,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX DEFAULT_TASK_SIZE #endif diff --git a/include/asm-s390/fb.h b/include/asm-s390/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-s390/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-s390/kprobes.h b/include/asm-s390/kprobes.h index 830fe4c4eea6..340ba10446ea 100644 --- a/include/asm-s390/kprobes.h +++ b/include/asm-s390/kprobes.h @@ -46,8 +46,6 @@ typedef u16 kprobe_opcode_t; ? (MAX_STACK_SIZE) \ : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) -#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)(pentry) - #define ARCH_SUPPORTS_KRETPROBES #define ARCH_INACTIVE_KPROBE_COUNT 0 diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h index 05ea6f172786..f326451ed6ec 100644 --- a/include/asm-s390/page.h +++ b/include/asm-s390/page.h @@ -64,7 +64,8 @@ static inline void copy_page(void *to, void *from) #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE /* diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h index 9ea7f1023e57..545857e64443 100644 --- a/include/asm-s390/percpu.h +++ b/include/asm-s390/percpu.h @@ -41,6 +41,11 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; __attribute__((__section__(".data.percpu"))) \ __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + __typeof__(type) per_cpu__##name \ + ____cacheline_aligned_in_smp + #define __get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset) #define __raw_get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset) #define per_cpu(var,cpu) __reloc_hide(var,__per_cpu_offset[cpu]) @@ -59,6 +64,8 @@ do { \ #define DEFINE_PER_CPU(type, name) \ __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + DEFINE_PER_CPU(type, name) #define __get_cpu_var(var) __reloc_hide(var,0) #define __raw_get_cpu_var(var) __reloc_hide(var,0) diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index 26215a976127..3208dc6c412c 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -669,19 +669,6 @@ ptep_clear_flush_young(struct vm_area_struct *vma, return ptep_test_and_clear_young(vma, address, ptep); } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - return 0; -} - -static inline int -ptep_clear_flush_dirty(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) -{ - /* No need to flush TLB; bits are in storage key */ - return ptep_test_and_clear_dirty(vma, address, ptep); -} - static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t pte = *ptep; @@ -707,16 +694,19 @@ static inline void __ptep_ipte(unsigned long address, pte_t *ptep) pte_val(*ptep) = _PAGE_TYPE_EMPTY; } -static inline pte_t -ptep_clear_flush(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) +static inline void ptep_invalidate(unsigned long address, pte_t *ptep) { - pte_t pte = *ptep; - pte_t *shadow_pte = get_shadow_pte(ptep); - __ptep_ipte(address, ptep); - if (shadow_pte) - __ptep_ipte(address, shadow_pte); + ptep = get_shadow_pte(ptep); + if (ptep) + __ptep_ipte(address, ptep); +} + +static inline pte_t ptep_clear_flush(struct vm_area_struct *vma, + unsigned long address, pte_t *ptep) +{ + pte_t pte = *ptep; + ptep_invalidate(address, ptep); return pte; } @@ -726,21 +716,14 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte)); } -static inline void -ptep_establish(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep, - pte_t entry) -{ - ptep_clear_flush(vma, address, ptep); - set_pte(ptep, entry); -} - -#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \ -({ \ - int __changed = !pte_same(*(__ptep), __entry); \ - if (__changed) \ - ptep_establish(__vma, __address, __ptep, __entry); \ - __changed; \ +#define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \ +({ \ + int __changed = !pte_same(*(__ptep), __entry); \ + if (__changed) { \ + ptep_invalidate(__addr, __ptep); \ + set_pte_at((__vma)->vm_mm, __addr, __ptep, __entry); \ + } \ + __changed; \ }) /* @@ -940,12 +923,9 @@ extern int remove_shared_memory(unsigned long start, unsigned long size); #define __HAVE_ARCH_MEMMAP_INIT extern void memmap_init(unsigned long, int, unsigned long, unsigned long); -#define __HAVE_ARCH_PTEP_ESTABLISH #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_CLEAR_FLUSH #define __HAVE_ARCH_PTEP_SET_WRPROTECT diff --git a/include/asm-sh/a.out.h b/include/asm-sh/a.out.h index 6e9fca9ee333..685d0f6125fa 100644 --- a/include/asm-sh/a.out.h +++ b/include/asm-sh/a.out.h @@ -20,6 +20,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-sh/fb.h b/include/asm-sh/fb.h new file mode 100644 index 000000000000..d92e99cd8c8a --- /dev/null +++ b/include/asm-sh/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-sh64/a.out.h b/include/asm-sh64/a.out.h index e1995e86b663..237ee4e5b72a 100644 --- a/include/asm-sh64/a.out.h +++ b/include/asm-sh64/a.out.h @@ -31,6 +31,7 @@ struct exec #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-sh64/fb.h b/include/asm-sh64/fb.h new file mode 100644 index 000000000000..d92e99cd8c8a --- /dev/null +++ b/include/asm-sh64/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-sparc/a.out.h b/include/asm-sparc/a.out.h index 9090060a23e6..917e04250696 100644 --- a/include/asm-sparc/a.out.h +++ b/include/asm-sparc/a.out.h @@ -92,6 +92,7 @@ struct relocation_info /* used when header.a_machtype == M_SPARC */ #include <asm/page.h> #define STACK_TOP (PAGE_OFFSET - PAGE_SIZE) +#define STACK_TOP_MAX STACK_TOP #endif /* __KERNEL__ */ diff --git a/include/asm-sparc/fb.h b/include/asm-sparc/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-sparc/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-sparc64/a.out.h b/include/asm-sparc64/a.out.h index eb3b8e90b279..902e07f89a42 100644 --- a/include/asm-sparc64/a.out.h +++ b/include/asm-sparc64/a.out.h @@ -101,6 +101,8 @@ struct relocation_info /* used when header.a_machtype == M_SPARC */ #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \ STACK_TOP32 : STACK_TOP64) +#define STACK_TOP_MAX STACK_TOP64 + #endif #endif /* !(__ASSEMBLY__) */ diff --git a/include/asm-sparc64/fb.h b/include/asm-sparc64/fb.h new file mode 100644 index 000000000000..d6cd3a175fc3 --- /dev/null +++ b/include/asm-sparc64/fb.h @@ -0,0 +1,18 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-sparc64/io.h b/include/asm-sparc64/io.h index ad595b679842..9565a892801e 100644 --- a/include/asm-sparc64/io.h +++ b/include/asm-sparc64/io.h @@ -14,11 +14,6 @@ #define __SLOW_DOWN_IO do { } while (0) #define SLOW_DOWN_IO do { } while (0) -extern unsigned long virt_to_bus_not_defined_use_pci_map(volatile void *addr); -#define virt_to_bus virt_to_bus_not_defined_use_pci_map -extern unsigned long bus_to_virt_not_defined_use_pci_map(volatile void *addr); -#define bus_to_virt bus_to_virt_not_defined_use_pci_map - /* BIO layer definitions. */ extern unsigned long kern_base, kern_size; #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h index a331b7b0dff2..7f6774dca5f4 100644 --- a/include/asm-sparc64/kprobes.h +++ b/include/asm-sparc64/kprobes.h @@ -10,7 +10,6 @@ typedef u32 kprobe_opcode_t; #define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */ #define MAX_INSN_SIZE 2 -#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define arch_remove_kprobe(p) do {} while (0) #define ARCH_INACTIVE_KPROBE_COUNT 0 diff --git a/include/asm-sparc64/mdesc.h b/include/asm-sparc64/mdesc.h index e97c43133752..1acc7272e537 100644 --- a/include/asm-sparc64/mdesc.h +++ b/include/asm-sparc64/mdesc.h @@ -61,6 +61,16 @@ extern u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc); extern void mdesc_update(void); +struct mdesc_notifier_client { + void (*add)(struct mdesc_handle *handle, u64 node); + void (*remove)(struct mdesc_handle *handle, u64 node); + + const char *node_name; + struct mdesc_notifier_client *next; +}; + +extern void mdesc_register_notifier(struct mdesc_notifier_client *client); + extern void mdesc_fill_in_cpu_data(cpumask_t mask); extern void sun4v_mdesc_init(void); diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h index 88db872ce2f8..caf8750792ff 100644 --- a/include/asm-sparc64/percpu.h +++ b/include/asm-sparc64/percpu.h @@ -18,6 +18,11 @@ extern unsigned long __per_cpu_shift; #define DEFINE_PER_CPU(type, name) \ __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + __typeof__(type) per_cpu__##name \ + ____cacheline_aligned_in_smp + register unsigned long __local_per_cpu_offset asm("g5"); /* var is in discarded region: offset to particular copy we want */ @@ -38,6 +43,8 @@ do { \ #define real_setup_per_cpu_areas() do { } while (0) #define DEFINE_PER_CPU(type, name) \ __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + DEFINE_PER_CPU(type, name) #define per_cpu(var, cpu) (*((void)cpu, &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var diff --git a/include/asm-sparc64/vio.h b/include/asm-sparc64/vio.h index 83c96422e9d6..c0a8d4ed5bcb 100644 --- a/include/asm-sparc64/vio.h +++ b/include/asm-sparc64/vio.h @@ -264,7 +264,7 @@ static inline u32 vio_dring_avail(struct vio_dring_state *dr, ((dr->prod - dr->cons) & (ring_size - 1))); } -#define VIO_MAX_TYPE_LEN 64 +#define VIO_MAX_TYPE_LEN 32 #define VIO_MAX_COMPAT_LEN 64 struct vio_dev { diff --git a/include/asm-um/a.out.h b/include/asm-um/a.out.h index 7016b893ac9d..78bc9eed26b2 100644 --- a/include/asm-um/a.out.h +++ b/include/asm-um/a.out.h @@ -17,4 +17,6 @@ extern int honeypot; #define STACK_TOP \ CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size) +#define STACK_TOP_MAX STACK_TOP + #endif diff --git a/include/asm-v850/fb.h b/include/asm-v850/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-v850/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-x86_64/a.out.h b/include/asm-x86_64/a.out.h index 7255cde06538..e789300e41a5 100644 --- a/include/asm-x86_64/a.out.h +++ b/include/asm-x86_64/a.out.h @@ -21,7 +21,8 @@ struct exec #ifdef __KERNEL__ #include <linux/thread_info.h> -#define STACK_TOP TASK_SIZE +#define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX TASK_SIZE64 #endif #endif /* __A_OUT_GNU_H__ */ diff --git a/include/asm-x86_64/fb.h b/include/asm-x86_64/fb.h new file mode 100644 index 000000000000..60548e651d12 --- /dev/null +++ b/include/asm-x86_64/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + if (boot_cpu_data.x86 > 3) + pgprot_val(vma->vm_page_prot) |= _PAGE_PCD; +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h index cf5317898fb0..7db825403e01 100644 --- a/include/asm-x86_64/kprobes.h +++ b/include/asm-x86_64/kprobes.h @@ -41,7 +41,6 @@ typedef u8 kprobe_opcode_t; ? (MAX_STACK_SIZE) \ : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) -#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES #define ARCH_INACTIVE_KPROBE_COUNT 1 diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h index e327c830da0c..88adf1afb0a2 100644 --- a/include/asm-x86_64/page.h +++ b/include/asm-x86_64/page.h @@ -48,7 +48,8 @@ void copy_page(void *, void *); #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr) +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE /* * These are used to make use of C type-checking.. diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h index c6fbb67eac90..5abd48270101 100644 --- a/include/asm-x86_64/percpu.h +++ b/include/asm-x86_64/percpu.h @@ -20,6 +20,11 @@ #define DEFINE_PER_CPU(type, name) \ __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + __attribute__((__section__(".data.percpu.shared_aligned"))) \ + __typeof__(type) per_cpu__##name \ + ____cacheline_internodealigned_in_smp + /* var is in discarded region: offset to particular copy we want */ #define per_cpu(var, cpu) (*({ \ extern int simple_identifier_##var(void); \ @@ -46,6 +51,8 @@ extern void setup_per_cpu_areas(void); #define DEFINE_PER_CPU(type, name) \ __typeof__(type) per_cpu__##name +#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name) \ + DEFINE_PER_CPU(type, name) #define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) #define __get_cpu_var(var) per_cpu__##var diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index 4f169ac6b10a..3ba53099297d 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -284,13 +284,6 @@ static inline pte_t pte_clrhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & struct vm_area_struct; -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - if (!pte_dirty(*ptep)) - return 0; - return test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte); -} - static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { if (!pte_young(*ptep)) @@ -427,7 +420,6 @@ extern int kern_addr_valid(unsigned long addr); (((o) & (1UL << (__VIRTUAL_MASK_SHIFT-1))) ? ((o) | (~__VIRTUAL_MASK)) : (o)) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL #define __HAVE_ARCH_PTEP_SET_WRPROTECT diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h index 8696f8ad401e..fc4e73f5f1fa 100644 --- a/include/asm-x86_64/unistd.h +++ b/include/asm-x86_64/unistd.h @@ -630,6 +630,8 @@ __SYSCALL(__NR_signalfd, sys_signalfd) __SYSCALL(__NR_timerfd, sys_timerfd) #define __NR_eventfd 284 __SYSCALL(__NR_eventfd, sys_eventfd) +#define __NR_fallocate 285 +__SYSCALL(__NR_fallocate, sys_fallocate) #ifndef __NO_STUBS #define __ARCH_WANT_OLD_READDIR diff --git a/include/asm-xtensa/a.out.h b/include/asm-xtensa/a.out.h index ffc4dcfd6ac1..05a2f67c6768 100644 --- a/include/asm-xtensa/a.out.h +++ b/include/asm-xtensa/a.out.h @@ -17,6 +17,7 @@ /* Note: the kernel needs the a.out definitions, even if only ELF is used. */ #define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP struct exec { diff --git a/include/asm-xtensa/fb.h b/include/asm-xtensa/fb.h new file mode 100644 index 000000000000..c7df38030992 --- /dev/null +++ b/include/asm-xtensa/fb.h @@ -0,0 +1,12 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ +#include <linux/fb.h> + +#define fb_pgprotect(...) do {} while (0) + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/include/asm-xtensa/pgtable.h b/include/asm-xtensa/pgtable.h index e9fc512cc247..06850f3b26a7 100644 --- a/include/asm-xtensa/pgtable.h +++ b/include/asm-xtensa/pgtable.h @@ -267,17 +267,6 @@ ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, return 1; } -static inline int -ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, - pte_t *ptep) -{ - pte_t pte = *ptep; - if (!pte_dirty(pte)) - return 0; - update_pte(ptep, pte_mkclean(pte)); - return 1; -} - static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { @@ -418,7 +407,6 @@ typedef pte_t *pte_addr_t; #endif /* !defined (__ASSEMBLY__) */ #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTEP_MKDIRTY diff --git a/include/linux/acpi.h b/include/linux/acpi.h index fccd8b548d93..dc234c508a6f 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -122,7 +122,7 @@ extern struct acpi_mcfg_allocation *pci_mmcfg_config; extern int pci_mmcfg_config_num; extern int sbf_port; -extern unsigned long acpi_video_flags; +extern unsigned long acpi_realmode_flags; #else /* !CONFIG_ACPI */ diff --git a/include/linux/aio.h b/include/linux/aio.h index b903fc02bdb7..d10e608f232d 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h @@ -86,7 +86,7 @@ struct kioctx; */ struct kiocb { struct list_head ki_run_list; - long ki_flags; + unsigned long ki_flags; int ki_users; unsigned ki_key; /* id of this request */ diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index e1a708337be3..91c8c07fe8b7 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -6,11 +6,13 @@ struct pt_regs; /* - * MAX_ARG_PAGES defines the number of pages allocated for arguments - * and envelope for the new program. 32 should suffice, this gives - * a maximum env+arg of 128kB w/4KB pages! + * These are the maximum length and maximum number of strings passed to the + * execve() system call. MAX_ARG_STRLEN is essentially random but serves to + * prevent the kernel from being unduly impacted by misaddressed pointers. + * MAX_ARG_STRINGS is chosen to fit in a signed 32-bit integer. */ -#define MAX_ARG_PAGES 32 +#define MAX_ARG_STRLEN (PAGE_SIZE * 32) +#define MAX_ARG_STRINGS 0x7FFFFFFF /* sizeof(linux_binprm->buf) */ #define BINPRM_BUF_SIZE 128 @@ -24,7 +26,12 @@ struct pt_regs; */ struct linux_binprm{ char buf[BINPRM_BUF_SIZE]; +#ifdef CONFIG_MMU + struct vm_area_struct *vma; +#else +# define MAX_ARG_PAGES 32 struct page *page[MAX_ARG_PAGES]; +#endif struct mm_struct *mm; unsigned long p; /* current top of mem */ int sh_bang; @@ -40,6 +47,7 @@ struct linux_binprm{ unsigned interp_flags; unsigned interp_data; unsigned long loader, exec; + unsigned long argv_len; }; #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0 @@ -68,7 +76,7 @@ extern int register_binfmt(struct linux_binfmt *); extern int unregister_binfmt(struct linux_binfmt *); extern int prepare_binprm(struct linux_binprm *); -extern void remove_arg_zero(struct linux_binprm *); +extern int __must_check remove_arg_zero(struct linux_binprm *); extern int search_binary_handler(struct linux_binprm *,struct pt_regs *); extern int flush_old_exec(struct linux_binprm * bprm); @@ -85,6 +93,7 @@ extern int suid_dumpable; extern int setup_arg_pages(struct linux_binprm * bprm, unsigned long stack_top, int executable_stack); +extern int bprm_mm_init(struct linux_binprm *bprm); extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm); extern void compute_creds(struct linux_binprm *binprm); extern int do_coredump(long signr, int exit_code, struct pt_regs * regs); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index b32564a1e105..f78965fc6426 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -624,7 +624,7 @@ extern unsigned long blk_max_low_pfn, blk_max_pfn; */ #define BLK_DEFAULT_SG_TIMEOUT (60 * HZ) -#ifdef CONFIG_MMU +#ifdef CONFIG_BOUNCE extern int init_emergency_isa_pool(void); extern void blk_queue_bounce(request_queue_t *q, struct bio **bio); #else diff --git a/include/linux/bsg.h b/include/linux/bsg.h index bd998ca6cb2e..8547b10c388b 100644 --- a/include/linux/bsg.h +++ b/include/linux/bsg.h @@ -60,7 +60,6 @@ struct bsg_class_device { extern int bsg_register_queue(struct request_queue *, const char *); extern void bsg_unregister_queue(struct request_queue *); #else -struct bsg_class_device { }; #define bsg_register_queue(disk, name) (0) #define bsg_unregister_queue(disk) do { } while (0) #endif diff --git a/include/linux/coda_linux.h b/include/linux/coda_linux.h index e4ac016ad272..c4079b403e9e 100644 --- a/include/linux/coda_linux.h +++ b/include/linux/coda_linux.h @@ -43,9 +43,6 @@ int coda_revalidate_inode(struct dentry *); int coda_getattr(struct vfsmount *, struct dentry *, struct kstat *); int coda_setattr(struct dentry *, struct iattr *); -/* global variables */ -extern int coda_fake_statfs; - /* this file: heloers */ static __inline__ struct CodaFid *coda_i2f(struct inode *); static __inline__ char *coda_i2s(struct inode *); diff --git a/include/linux/coda_proc.h b/include/linux/coda_proc.h deleted file mode 100644 index 0dc1b0458e75..000000000000 --- a/include/linux/coda_proc.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * coda_statis.h - * - * CODA operation statistics - * - * (c) March, 1998 - * by Michihiro Kuramochi, Zhenyu Xia and Zhanyong Wan - * zhanyong.wan@yale.edu - * - */ - -#ifndef _CODA_PROC_H -#define _CODA_PROC_H - -void coda_sysctl_init(void); -void coda_sysctl_clean(void); - -#include <linux/sysctl.h> -#include <linux/coda_fs_i.h> -#include <linux/coda.h> - -/* these four files are presented to show the result of the statistics: - * - * /proc/fs/coda/vfs_stats - * cache_inv_stats - * - * these four files are presented to reset the statistics to 0: - * - * /proc/sys/coda/vfs_stats - * cache_inv_stats - */ - -/* VFS operation statistics */ -struct coda_vfs_stats -{ - /* file operations */ - int open; - int flush; - int release; - int fsync; - - /* dir operations */ - int readdir; - - /* inode operations */ - int create; - int lookup; - int link; - int unlink; - int symlink; - int mkdir; - int rmdir; - int rename; - int permission; - - /* symlink operatoins*/ - int follow_link; - int readlink; -}; - -/* cache invalidation statistics */ -struct coda_cache_inv_stats -{ - int flush; - int purge_user; - int zap_dir; - int zap_file; - int zap_vnode; - int purge_fid; - int replace; -}; - -/* these global variables hold the actual statistics data */ -extern struct coda_vfs_stats coda_vfs_stat; - -#endif /* _CODA_PROC_H */ diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h index b541bb3d1f4b..aa8f454b3b77 100644 --- a/include/linux/coda_psdev.h +++ b/include/linux/coda_psdev.h @@ -8,11 +8,6 @@ struct kstatfs; -struct coda_sb_info -{ - struct venus_comm *sbi_vcomm; -}; - /* communication pending/processing queues */ struct venus_comm { u_long vc_seq; @@ -24,9 +19,9 @@ struct venus_comm { }; -static inline struct coda_sb_info *coda_sbp(struct super_block *sb) +static inline struct venus_comm *coda_vcp(struct super_block *sb) { - return ((struct coda_sb_info *)((sb)->s_fs_info)); + return (struct venus_comm *)((sb)->s_fs_info); } @@ -74,8 +69,6 @@ int venus_statfs(struct dentry *dentry, struct kstatfs *sfs); /* messages between coda filesystem in kernel and Venus */ -extern int coda_hard; -extern unsigned long coda_timeout; struct upc_req { struct list_head uc_chain; caddr_t uc_data; @@ -85,7 +78,6 @@ struct upc_req { u_short uc_opcode; /* copied from data to save lookup */ int uc_unique; wait_queue_head_t uc_sleep; /* process' wait queue */ - unsigned long uc_posttime; }; #define REQ_ASYNC 0x1 diff --git a/include/linux/crc7.h b/include/linux/crc7.h new file mode 100644 index 000000000000..1786e772d5c6 --- /dev/null +++ b/include/linux/crc7.h @@ -0,0 +1,14 @@ +#ifndef _LINUX_CRC7_H +#define _LINUX_CRC7_H +#include <linux/types.h> + +extern const u8 crc7_syndrome_table[256]; + +static inline u8 crc7_byte(u8 crc, u8 data) +{ + return crc7_syndrome_table[(crc << 1) ^ data]; +} + +extern u8 crc7(u8 crc, const u8 *buffer, size_t len); + +#endif diff --git a/include/linux/device.h b/include/linux/device.h index be2debed70d2..d9f0a57f5a2f 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -572,6 +572,16 @@ dev_dbg(struct device * dev, const char * fmt, ...) } #endif +#ifdef VERBOSE_DEBUG +#define dev_vdbg dev_dbg +#else +static inline int __attribute__ ((format (printf, 2, 3))) +dev_vdbg(struct device * dev, const char * fmt, ...) +{ + return 0; +} +#endif + #define dev_err(dev, format, arg...) \ dev_printk(KERN_ERR , dev , format , ## arg) #define dev_info(dev, format, arg...) \ diff --git a/include/linux/edac.h b/include/linux/edac.h new file mode 100644 index 000000000000..eab451e69a91 --- /dev/null +++ b/include/linux/edac.h @@ -0,0 +1,29 @@ +/* + * Generic EDAC defs + * + * Author: Dave Jiang <djiang@mvista.com> + * + * 2006-2007 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + * + */ +#ifndef _LINUX_EDAC_H_ +#define _LINUX_EDAC_H_ + +#include <asm/atomic.h> + +#define EDAC_OPSTATE_INVAL -1 +#define EDAC_OPSTATE_POLL 0 +#define EDAC_OPSTATE_NMI 1 +#define EDAC_OPSTATE_INT 2 + +extern int edac_op_state; +extern int edac_err_assert; +extern atomic_t edac_handlers; + +extern int edac_handler_set(void); +extern void edac_atomic_assert_error(void); + +#endif diff --git a/include/linux/efs_fs.h b/include/linux/efs_fs.h index dfed8009ebff..16cb25cbf7c5 100644 --- a/include/linux/efs_fs.h +++ b/include/linux/efs_fs.h @@ -45,6 +45,7 @@ extern efs_block_t efs_map_block(struct inode *, efs_block_t); extern int efs_get_block(struct inode *, sector_t, struct buffer_head *, int); extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *); +extern struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp); extern struct dentry *efs_get_parent(struct dentry *); extern int efs_bmap(struct inode *, int); diff --git a/include/linux/elfnote.h b/include/linux/elfnote.h index 9a1e0674e56c..e831759b2fb5 100644 --- a/include/linux/elfnote.h +++ b/include/linux/elfnote.h @@ -38,17 +38,25 @@ * e.g. ELFNOTE(XYZCo, 42, .asciz, "forty-two") * ELFNOTE(XYZCo, 12, .long, 0xdeadbeef) */ -#define ELFNOTE(name, type, desctype, descdata) \ -.pushsection .note.name, "",@note ; \ - .align 4 ; \ +#define ELFNOTE_START(name, type, flags) \ +.pushsection .note.name, flags,@note ; \ + .balign 4 ; \ .long 2f - 1f /* namesz */ ; \ - .long 4f - 3f /* descsz */ ; \ + .long 4484f - 3f /* descsz */ ; \ .long type ; \ 1:.asciz #name ; \ -2:.align 4 ; \ -3:desctype descdata ; \ -4:.align 4 ; \ +2:.balign 4 ; \ +3: + +#define ELFNOTE_END \ +4484:.balign 4 ; \ .popsection ; + +#define ELFNOTE(name, type, desc) \ + ELFNOTE_START(name, type, "") \ + desc ; \ + ELFNOTE_END + #else /* !__ASSEMBLER__ */ #include <linux/elf.h> /* diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h new file mode 100644 index 000000000000..8872fe8392d6 --- /dev/null +++ b/include/linux/exportfs.h @@ -0,0 +1,126 @@ +#ifndef LINUX_EXPORTFS_H +#define LINUX_EXPORTFS_H 1 + +#include <linux/types.h> + +struct dentry; +struct super_block; +struct vfsmount; + + +/** + * struct export_operations - for nfsd to communicate with file systems + * @decode_fh: decode a file handle fragment and return a &struct dentry + * @encode_fh: encode a file handle fragment from a dentry + * @get_name: find the name for a given inode in a given directory + * @get_parent: find the parent of a given directory + * @get_dentry: find a dentry for the inode given a file handle sub-fragment + * @find_exported_dentry: + * set by the exporting module to a standard helper function. + * + * Description: + * The export_operations structure provides a means for nfsd to communicate + * with a particular exported file system - particularly enabling nfsd and + * the filesystem to co-operate when dealing with file handles. + * + * export_operations contains two basic operation for dealing with file + * handles, decode_fh() and encode_fh(), and allows for some other + * operations to be defined which standard helper routines use to get + * specific information from the filesystem. + * + * nfsd encodes information use to determine which filesystem a filehandle + * applies to in the initial part of the file handle. The remainder, termed + * a file handle fragment, is controlled completely by the filesystem. The + * standard helper routines assume that this fragment will contain one or + * two sub-fragments, one which identifies the file, and one which may be + * used to identify the (a) directory containing the file. + * + * In some situations, nfsd needs to get a dentry which is connected into a + * specific part of the file tree. To allow for this, it passes the + * function acceptable() together with a @context which can be used to see + * if the dentry is acceptable. As there can be multiple dentrys for a + * given file, the filesystem should check each one for acceptability before + * looking for the next. As soon as an acceptable one is found, it should + * be returned. + * + * decode_fh: + * @decode_fh is given a &struct super_block (@sb), a file handle fragment + * (@fh, @fh_len) and an acceptability testing function (@acceptable, + * @context). It should return a &struct dentry which refers to the same + * file that the file handle fragment refers to, and which passes the + * acceptability test. If it cannot, it should return a %NULL pointer if + * the file was found but no acceptable &dentries were available, or a + * %ERR_PTR error code indicating why it couldn't be found (e.g. %ENOENT or + * %ENOMEM). + * + * encode_fh: + * @encode_fh should store in the file handle fragment @fh (using at most + * @max_len bytes) information that can be used by @decode_fh to recover the + * file refered to by the &struct dentry @de. If the @connectable flag is + * set, the encode_fh() should store sufficient information so that a good + * attempt can be made to find not only the file but also it's place in the + * filesystem. This typically means storing a reference to de->d_parent in + * the filehandle fragment. encode_fh() should return the number of bytes + * stored or a negative error code such as %-ENOSPC + * + * get_name: + * @get_name should find a name for the given @child in the given @parent + * directory. The name should be stored in the @name (with the + * understanding that it is already pointing to a a %NAME_MAX+1 sized + * buffer. get_name() should return %0 on success, a negative error code + * or error. @get_name will be called without @parent->i_mutex held. + * + * get_parent: + * @get_parent should find the parent directory for the given @child which + * is also a directory. In the event that it cannot be found, or storage + * space cannot be allocated, a %ERR_PTR should be returned. + * + * get_dentry: + * Given a &super_block (@sb) and a pointer to a file-system specific inode + * identifier, possibly an inode number, (@inump) get_dentry() should find + * the identified inode and return a dentry for that inode. Any suitable + * dentry can be returned including, if necessary, a new dentry created with + * d_alloc_root. The caller can then find any other extant dentrys by + * following the d_alias links. If a new dentry was created using + * d_alloc_root, DCACHE_NFSD_DISCONNECTED should be set, and the dentry + * should be d_rehash()ed. + * + * If the inode cannot be found, either a %NULL pointer or an %ERR_PTR code + * can be returned. The @inump will be whatever was passed to + * nfsd_find_fh_dentry() in either the @obj or @parent parameters. + * + * Locking rules: + * get_parent is called with child->d_inode->i_mutex down + * get_name is not (which is possibly inconsistent) + */ + +struct export_operations { + struct dentry *(*decode_fh)(struct super_block *sb, __u32 *fh, + int fh_len, int fh_type, + int (*acceptable)(void *context, struct dentry *de), + void *context); + int (*encode_fh)(struct dentry *de, __u32 *fh, int *max_len, + int connectable); + int (*get_name)(struct dentry *parent, char *name, + struct dentry *child); + struct dentry * (*get_parent)(struct dentry *child); + struct dentry * (*get_dentry)(struct super_block *sb, void *inump); + + /* This is set by the exporting module to a standard helper */ + struct dentry * (*find_exported_dentry)( + struct super_block *sb, void *obj, void *parent, + int (*acceptable)(void *context, struct dentry *de), + void *context); +}; + +extern struct dentry *find_exported_dentry(struct super_block *sb, void *obj, + void *parent, int (*acceptable)(void *context, struct dentry *de), + void *context); + +extern int exportfs_encode_fh(struct dentry *dentry, __u32 *fh, int *max_len, + int connectable); +extern struct dentry *exportfs_decode_fh(struct vfsmount *mnt, __u32 *fh, + int fh_len, int fileid_type, int (*acceptable)(void *, struct dentry *), + void *context); + +#endif /* LINUX_EXPORTFS_H */ diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h index de1f9f78625a..cdee7aaa57aa 100644 --- a/include/linux/ext4_fs.h +++ b/include/linux/ext4_fs.h @@ -71,7 +71,7 @@ /* * Maximal count of links to a file */ -#define EXT4_LINK_MAX 32000 +#define EXT4_LINK_MAX 65000 /* * Macro-instructions used to manage several block sizes @@ -102,6 +102,7 @@ EXT4_GOOD_OLD_FIRST_INO : \ (s)->s_first_ino) #endif +#define EXT4_BLOCK_ALIGN(size, blkbits) ALIGN((size), (1 << (blkbits))) /* * Macro-instructions used to manage fragments @@ -201,6 +202,7 @@ struct ext4_group_desc #define EXT4_STATE_JDATA 0x00000001 /* journaled data exists */ #define EXT4_STATE_NEW 0x00000002 /* inode is newly created */ #define EXT4_STATE_XATTR 0x00000004 /* has in-inode xattrs */ +#define EXT4_STATE_NO_EXPAND 0x00000008 /* No space for expansion */ /* Used to pass group descriptor data when online resize is done */ struct ext4_new_group_input { @@ -225,6 +227,11 @@ struct ext4_new_group_data { __u32 free_blocks_count; }; +/* + * Following is used by preallocation code to tell get_blocks() that we + * want uninitialzed extents. + */ +#define EXT4_CREATE_UNINITIALIZED_EXT 2 /* * ioctl commands @@ -237,7 +244,7 @@ struct ext4_new_group_data { #define EXT4_IOC_GROUP_ADD _IOW('f', 8,struct ext4_new_group_input) #define EXT4_IOC_GETVERSION_OLD FS_IOC_GETVERSION #define EXT4_IOC_SETVERSION_OLD FS_IOC_SETVERSION -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG #define EXT4_IOC_WAIT_FOR_READONLY _IOR('f', 99, long) #endif #define EXT4_IOC_GETRSVSZ _IOR('f', 5, long) @@ -253,7 +260,7 @@ struct ext4_new_group_data { #define EXT4_IOC32_GETRSVSZ _IOR('f', 5, int) #define EXT4_IOC32_SETRSVSZ _IOW('f', 6, int) #define EXT4_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int) -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG #define EXT4_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int) #endif #define EXT4_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION @@ -282,7 +289,7 @@ struct ext4_inode { __le16 i_uid; /* Low 16 bits of Owner Uid */ __le32 i_size; /* Size in bytes */ __le32 i_atime; /* Access time */ - __le32 i_ctime; /* Creation time */ + __le32 i_ctime; /* Inode Change time */ __le32 i_mtime; /* Modification time */ __le32 i_dtime; /* Deletion Time */ __le16 i_gid; /* Low 16 bits of Group Id */ @@ -331,10 +338,85 @@ struct ext4_inode { } osd2; /* OS dependent 2 */ __le16 i_extra_isize; __le16 i_pad1; + __le32 i_ctime_extra; /* extra Change time (nsec << 2 | epoch) */ + __le32 i_mtime_extra; /* extra Modification time(nsec << 2 | epoch) */ + __le32 i_atime_extra; /* extra Access time (nsec << 2 | epoch) */ + __le32 i_crtime; /* File Creation time */ + __le32 i_crtime_extra; /* extra FileCreationtime (nsec << 2 | epoch) */ }; #define i_size_high i_dir_acl +#define EXT4_EPOCH_BITS 2 +#define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1) +#define EXT4_NSEC_MASK (~0UL << EXT4_EPOCH_BITS) + +/* + * Extended fields will fit into an inode if the filesystem was formatted + * with large inodes (-I 256 or larger) and there are not currently any EAs + * consuming all of the available space. For new inodes we always reserve + * enough space for the kernel's known extended fields, but for inodes + * created with an old kernel this might not have been the case. None of + * the extended inode fields is critical for correct filesystem operation. + * This macro checks if a certain field fits in the inode. Note that + * inode-size = GOOD_OLD_INODE_SIZE + i_extra_isize + */ +#define EXT4_FITS_IN_INODE(ext4_inode, einode, field) \ + ((offsetof(typeof(*ext4_inode), field) + \ + sizeof((ext4_inode)->field)) \ + <= (EXT4_GOOD_OLD_INODE_SIZE + \ + (einode)->i_extra_isize)) \ + +static inline __le32 ext4_encode_extra_time(struct timespec *time) +{ + return cpu_to_le32((sizeof(time->tv_sec) > 4 ? + time->tv_sec >> 32 : 0) | + ((time->tv_nsec << 2) & EXT4_NSEC_MASK)); +} + +static inline void ext4_decode_extra_time(struct timespec *time, __le32 extra) +{ + if (sizeof(time->tv_sec) > 4) + time->tv_sec |= (__u64)(le32_to_cpu(extra) & EXT4_EPOCH_MASK) + << 32; + time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> 2; +} + +#define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode) \ +do { \ + (raw_inode)->xtime = cpu_to_le32((inode)->xtime.tv_sec); \ + if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) \ + (raw_inode)->xtime ## _extra = \ + ext4_encode_extra_time(&(inode)->xtime); \ +} while (0) + +#define EXT4_EINODE_SET_XTIME(xtime, einode, raw_inode) \ +do { \ + if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \ + (raw_inode)->xtime = cpu_to_le32((einode)->xtime.tv_sec); \ + if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) \ + (raw_inode)->xtime ## _extra = \ + ext4_encode_extra_time(&(einode)->xtime); \ +} while (0) + +#define EXT4_INODE_GET_XTIME(xtime, inode, raw_inode) \ +do { \ + (inode)->xtime.tv_sec = (signed)le32_to_cpu((raw_inode)->xtime); \ + if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) \ + ext4_decode_extra_time(&(inode)->xtime, \ + raw_inode->xtime ## _extra); \ +} while (0) + +#define EXT4_EINODE_GET_XTIME(xtime, einode, raw_inode) \ +do { \ + if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) \ + (einode)->xtime.tv_sec = \ + (signed)le32_to_cpu((raw_inode)->xtime); \ + if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) \ + ext4_decode_extra_time(&(einode)->xtime, \ + raw_inode->xtime ## _extra); \ +} while (0) + #if defined(__KERNEL__) || defined(__linux__) #define i_reserved1 osd1.linux1.l_i_reserved1 #define i_frag osd2.linux2.l_i_frag @@ -533,6 +615,13 @@ static inline struct ext4_inode_info *EXT4_I(struct inode *inode) return container_of(inode, struct ext4_inode_info, vfs_inode); } +static inline struct timespec ext4_current_time(struct inode *inode) +{ + return (inode->i_sb->s_time_gran < NSEC_PER_SEC) ? + current_fs_time(inode->i_sb) : CURRENT_TIME_SEC; +} + + static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) { return ino == EXT4_ROOT_INO || @@ -603,6 +692,8 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) #define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 #define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002 #define EXT4_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 +#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020 +#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040 #define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001 #define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002 @@ -620,6 +711,8 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) EXT4_FEATURE_INCOMPAT_64BIT) #define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \ EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \ + EXT4_FEATURE_RO_COMPAT_DIR_NLINK | \ + EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE | \ EXT4_FEATURE_RO_COMPAT_BTREE_DIR) /* @@ -862,6 +955,7 @@ extern int ext4_change_inode_journal_flag(struct inode *, int); extern int ext4_get_inode_loc(struct inode *, struct ext4_iloc *); extern void ext4_truncate (struct inode *); extern void ext4_set_inode_flags(struct inode *); +extern void ext4_get_inode_flags(struct ext4_inode_info *); extern void ext4_set_aops(struct inode *inode); extern int ext4_writepage_trans_blocks(struct inode *); extern int ext4_block_truncate_page(handle_t *handle, struct page *page, @@ -983,6 +1077,8 @@ extern int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, extern void ext4_ext_truncate(struct inode *, struct page *); extern void ext4_ext_init(struct super_block *); extern void ext4_ext_release(struct super_block *); +extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset, + loff_t len); static inline int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block, unsigned long max_blocks, struct buffer_head *bh, diff --git a/include/linux/ext4_fs_extents.h b/include/linux/ext4_fs_extents.h index acfe59740b03..81406f3655d4 100644 --- a/include/linux/ext4_fs_extents.h +++ b/include/linux/ext4_fs_extents.h @@ -141,7 +141,25 @@ typedef int (*ext_prepare_callback)(struct inode *, struct ext4_ext_path *, #define EXT_MAX_BLOCK 0xffffffff -#define EXT_MAX_LEN ((1UL << 15) - 1) +/* + * EXT_INIT_MAX_LEN is the maximum number of blocks we can have in an + * initialized extent. This is 2^15 and not (2^16 - 1), since we use the + * MSB of ee_len field in the extent datastructure to signify if this + * particular extent is an initialized extent or an uninitialized (i.e. + * preallocated). + * EXT_UNINIT_MAX_LEN is the maximum number of blocks we can have in an + * uninitialized extent. + * If ee_len is <= 0x8000, it is an initialized extent. Otherwise, it is an + * uninitialized one. In other words, if MSB of ee_len is set, it is an + * uninitialized extent with only one special scenario when ee_len = 0x8000. + * In this case we can not have an uninitialized extent of zero length and + * thus we make it as a special case of initialized extent with 0x8000 length. + * This way we get better extent-to-group alignment for initialized extents. + * Hence, the maximum number of blocks we can have in an *initialized* + * extent is 2^15 (32768) and in an *uninitialized* extent is 2^15-1 (32767). + */ +#define EXT_INIT_MAX_LEN (1UL << 15) +#define EXT_UNINIT_MAX_LEN (EXT_INIT_MAX_LEN - 1) #define EXT_FIRST_EXTENT(__hdr__) \ @@ -188,8 +206,31 @@ ext4_ext_invalidate_cache(struct inode *inode) EXT4_I(inode)->i_cached_extent.ec_type = EXT4_EXT_CACHE_NO; } +static inline void ext4_ext_mark_uninitialized(struct ext4_extent *ext) +{ + /* We can not have an uninitialized extent of zero length! */ + BUG_ON((le16_to_cpu(ext->ee_len) & ~EXT_INIT_MAX_LEN) == 0); + ext->ee_len |= cpu_to_le16(EXT_INIT_MAX_LEN); +} + +static inline int ext4_ext_is_uninitialized(struct ext4_extent *ext) +{ + /* Extent with ee_len of 0x8000 is treated as an initialized extent */ + return (le16_to_cpu(ext->ee_len) > EXT_INIT_MAX_LEN); +} + +static inline int ext4_ext_get_actual_len(struct ext4_extent *ext) +{ + return (le16_to_cpu(ext->ee_len) <= EXT_INIT_MAX_LEN ? + le16_to_cpu(ext->ee_len) : + (le16_to_cpu(ext->ee_len) - EXT_INIT_MAX_LEN)); +} + extern int ext4_extent_tree_init(handle_t *, struct inode *); extern int ext4_ext_calc_credits_for_insert(struct inode *, struct ext4_ext_path *); +extern int ext4_ext_try_to_merge(struct inode *inode, + struct ext4_ext_path *path, + struct ext4_extent *); extern unsigned int ext4_ext_check_overlap(struct inode *, struct ext4_extent *, struct ext4_ext_path *); extern int ext4_ext_insert_extent(handle_t *, struct inode *, struct ext4_ext_path *, struct ext4_extent *); extern int ext4_ext_walk_space(struct inode *, unsigned long, unsigned long, ext_prepare_callback, void *); diff --git a/include/linux/ext4_fs_i.h b/include/linux/ext4_fs_i.h index 9de494406995..1a511e9905aa 100644 --- a/include/linux/ext4_fs_i.h +++ b/include/linux/ext4_fs_i.h @@ -153,6 +153,11 @@ struct ext4_inode_info { unsigned long i_ext_generation; struct ext4_ext_cache i_cached_extent; + /* + * File creation time. Its function is same as that of + * struct timespec i_{a,c,m}time in the generic inode. + */ + struct timespec i_crtime; }; #endif /* _LINUX_EXT4_FS_I */ diff --git a/include/linux/ext4_fs_sb.h b/include/linux/ext4_fs_sb.h index 2347557a327a..1b2ffee12be9 100644 --- a/include/linux/ext4_fs_sb.h +++ b/include/linux/ext4_fs_sb.h @@ -73,7 +73,7 @@ struct ext4_sb_info { struct list_head s_orphan; unsigned long s_commit_interval; struct block_device *journal_bdev; -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG struct timer_list turn_ro_timer; /* For turning read-only (crash simulation) */ wait_queue_head_t ro_wait_queue; /* For people waiting for the fs to go read-only */ #endif @@ -81,6 +81,7 @@ struct ext4_sb_info { char *s_qf_names[MAXQUOTAS]; /* Names of quota files with journalled quota */ int s_jquota_fmt; /* Format of quota to use */ #endif + unsigned int s_want_extra_isize; /* New inodes should reserve # bytes */ #ifdef EXTENTS_STATS /* ext4 extents stats */ diff --git a/include/linux/falloc.h b/include/linux/falloc.h new file mode 100644 index 000000000000..8e912ab6a072 --- /dev/null +++ b/include/linux/falloc.h @@ -0,0 +1,6 @@ +#ifndef _FALLOC_H_ +#define _FALLOC_H_ + +#define FALLOC_FL_KEEP_SIZE 0x01 /* default is extend size */ + +#endif /* _FALLOC_H_ */ diff --git a/include/linux/fb.h b/include/linux/fb.h index 66226824ab68..cec54106aa87 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -119,6 +119,7 @@ struct dentry; #define FB_ACCEL_NV_40 46 /* nVidia Arch 40 */ #define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari V3XT, V5, V8 */ #define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */ +#define FB_ACCEL_OMAP1610 49 /* TI OMAP16xx */ #define FB_ACCEL_NEOMAGIC_NM2070 90 /* NeoMagic NM2070 */ #define FB_ACCEL_NEOMAGIC_NM2090 91 /* NeoMagic NM2090 */ #define FB_ACCEL_NEOMAGIC_NM2093 92 /* NeoMagic NM2093 */ @@ -529,6 +530,8 @@ struct fb_cursor_user { #define FB_EVENT_CONBLANK 0x0C /* Get drawing requirements */ #define FB_EVENT_GET_REQ 0x0D +/* Unbind from the console if possible */ +#define FB_EVENT_FB_UNBIND 0x0E struct fb_event { struct fb_info *info; diff --git a/include/linux/freezer.h b/include/linux/freezer.h index 4631086f5060..c8e02de737f6 100644 --- a/include/linux/freezer.h +++ b/include/linux/freezer.h @@ -1,5 +1,8 @@ /* Freezer declarations */ +#ifndef FREEZER_H_INCLUDED +#define FREEZER_H_INCLUDED + #include <linux/sched.h> #ifdef CONFIG_PM @@ -22,7 +25,7 @@ static inline int freezing(struct task_struct *p) /* * Request that a process be frozen */ -static inline void freeze(struct task_struct *p) +static inline void set_freeze_flag(struct task_struct *p) { set_tsk_thread_flag(p, TIF_FREEZE); } @@ -30,7 +33,7 @@ static inline void freeze(struct task_struct *p) /* * Sometimes we may need to cancel the previous 'freeze' request */ -static inline void do_not_freeze(struct task_struct *p) +static inline void clear_freeze_flag(struct task_struct *p) { clear_tsk_thread_flag(p, TIF_FREEZE); } @@ -53,7 +56,7 @@ static inline int thaw_process(struct task_struct *p) wake_up_process(p); return 1; } - clear_tsk_thread_flag(p, TIF_FREEZE); + clear_freeze_flag(p); task_unlock(p); return 0; } @@ -115,10 +118,19 @@ static inline int freezer_should_skip(struct task_struct *p) return !!(p->flags & PF_FREEZER_SKIP); } +/* + * Tell the freezer that the current task should be frozen by it + */ +static inline void set_freezable(void) +{ + current->flags &= ~PF_NOFREEZE; +} + #else static inline int frozen(struct task_struct *p) { return 0; } static inline int freezing(struct task_struct *p) { return 0; } -static inline void freeze(struct task_struct *p) { BUG(); } +static inline void set_freeze_flag(struct task_struct *p) {} +static inline void clear_freeze_flag(struct task_struct *p) {} static inline int thaw_process(struct task_struct *p) { return 1; } static inline void refrigerator(void) {} @@ -130,4 +142,7 @@ static inline int try_to_freeze(void) { return 0; } static inline void freezer_do_not_count(void) {} static inline void freezer_count(void) {} static inline int freezer_should_skip(struct task_struct *p) { return 0; } +static inline void set_freezable(void) {} #endif + +#endif /* FREEZER_H_INCLUDED */ diff --git a/include/linux/fs.h b/include/linux/fs.h index e68780810279..d33beadd9a43 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -283,11 +283,14 @@ extern int dir_notify_enable; #include <linux/init.h> #include <linux/pid.h> #include <linux/mutex.h> +#include <linux/sysctl.h> +#include <linux/capability.h> #include <asm/atomic.h> #include <asm/semaphore.h> #include <asm/byteorder.h> +struct export_operations; struct hd_geometry; struct iovec; struct nameidata; @@ -694,20 +697,26 @@ struct fown_struct { * Track a single file's readahead state */ struct file_ra_state { - unsigned long start; /* Current window */ - unsigned long size; - unsigned long flags; /* ra flags RA_FLAG_xxx*/ - unsigned long cache_hit; /* cache hit count*/ - unsigned long prev_index; /* Cache last read() position */ - unsigned long ahead_start; /* Ahead window */ - unsigned long ahead_size; + pgoff_t start; /* where readahead started */ + unsigned long size; /* # of readahead pages */ + unsigned long async_size; /* do asynchronous readahead when + there are only # of pages ahead */ + unsigned long ra_pages; /* Maximum readahead window */ unsigned long mmap_hit; /* Cache hit stat for mmap accesses */ unsigned long mmap_miss; /* Cache miss stat for mmap accesses */ + unsigned long prev_index; /* Cache last read() position */ unsigned int prev_offset; /* Offset where last read() ended in a page */ }; -#define RA_FLAG_MISS 0x01 /* a cache miss occured against this file */ -#define RA_FLAG_INCACHE 0x02 /* file is already in cache */ + +/* + * Check if @index falls in the readahead windows. + */ +static inline int ra_has_index(struct file_ra_state *ra, pgoff_t index) +{ + return (index >= ra->start && + index < ra->start + ra->size); +} struct file { /* @@ -859,7 +868,7 @@ extern void locks_init_lock(struct file_lock *); extern void locks_copy_lock(struct file_lock *, struct file_lock *); extern void locks_remove_posix(struct file *, fl_owner_t); extern void locks_remove_flock(struct file *); -extern int posix_test_lock(struct file *, struct file_lock *); +extern void posix_test_lock(struct file *, struct file_lock *); extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *); extern int posix_lock_file_wait(struct file *, struct file_lock *); extern int posix_unblock_lock(struct file *, struct file_lock *); @@ -870,6 +879,7 @@ extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl); extern int __break_lease(struct inode *inode, unsigned int flags); extern void lease_get_mtime(struct inode *, struct timespec *time); extern int setlease(struct file *, long, struct file_lock **); +extern int vfs_setlease(struct file *, long, struct file_lock **); extern int lease_modify(struct file_lock **, int); extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_write(struct inode *, loff_t start, unsigned long count); @@ -988,6 +998,9 @@ enum { #define put_fs_excl() atomic_dec(¤t->fs_excl) #define has_fs_excl() atomic_read(¤t->fs_excl) +#define is_owner_or_cap(inode) \ + ((current->fsuid == (inode)->i_uid) || capable(CAP_FOWNER)) + /* not quite ready to be deprecated, but... */ extern void lock_super(struct super_block *); extern void unlock_super(struct super_block *); @@ -1116,6 +1129,7 @@ struct file_operations { int (*flock) (struct file *, int, struct file_lock *); ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int); + int (*setlease)(struct file *, long, struct file_lock **); }; struct inode_operations { @@ -1141,6 +1155,8 @@ struct inode_operations { ssize_t (*listxattr) (struct dentry *, char *, size_t); int (*removexattr) (struct dentry *, const char *); void (*truncate_range)(struct inode *, loff_t, loff_t); + long (*fallocate)(struct inode *inode, int mode, loff_t offset, + loff_t len); }; struct seq_file; @@ -1277,119 +1293,6 @@ static inline void file_accessed(struct file *file) int sync_inode(struct inode *inode, struct writeback_control *wbc); -/** - * struct export_operations - for nfsd to communicate with file systems - * @decode_fh: decode a file handle fragment and return a &struct dentry - * @encode_fh: encode a file handle fragment from a dentry - * @get_name: find the name for a given inode in a given directory - * @get_parent: find the parent of a given directory - * @get_dentry: find a dentry for the inode given a file handle sub-fragment - * @find_exported_dentry: - * set by the exporting module to a standard helper function. - * - * Description: - * The export_operations structure provides a means for nfsd to communicate - * with a particular exported file system - particularly enabling nfsd and - * the filesystem to co-operate when dealing with file handles. - * - * export_operations contains two basic operation for dealing with file - * handles, decode_fh() and encode_fh(), and allows for some other - * operations to be defined which standard helper routines use to get - * specific information from the filesystem. - * - * nfsd encodes information use to determine which filesystem a filehandle - * applies to in the initial part of the file handle. The remainder, termed - * a file handle fragment, is controlled completely by the filesystem. The - * standard helper routines assume that this fragment will contain one or - * two sub-fragments, one which identifies the file, and one which may be - * used to identify the (a) directory containing the file. - * - * In some situations, nfsd needs to get a dentry which is connected into a - * specific part of the file tree. To allow for this, it passes the - * function acceptable() together with a @context which can be used to see - * if the dentry is acceptable. As there can be multiple dentrys for a - * given file, the filesystem should check each one for acceptability before - * looking for the next. As soon as an acceptable one is found, it should - * be returned. - * - * decode_fh: - * @decode_fh is given a &struct super_block (@sb), a file handle fragment - * (@fh, @fh_len) and an acceptability testing function (@acceptable, - * @context). It should return a &struct dentry which refers to the same - * file that the file handle fragment refers to, and which passes the - * acceptability test. If it cannot, it should return a %NULL pointer if - * the file was found but no acceptable &dentries were available, or a - * %ERR_PTR error code indicating why it couldn't be found (e.g. %ENOENT or - * %ENOMEM). - * - * encode_fh: - * @encode_fh should store in the file handle fragment @fh (using at most - * @max_len bytes) information that can be used by @decode_fh to recover the - * file refered to by the &struct dentry @de. If the @connectable flag is - * set, the encode_fh() should store sufficient information so that a good - * attempt can be made to find not only the file but also it's place in the - * filesystem. This typically means storing a reference to de->d_parent in - * the filehandle fragment. encode_fh() should return the number of bytes - * stored or a negative error code such as %-ENOSPC - * - * get_name: - * @get_name should find a name for the given @child in the given @parent - * directory. The name should be stored in the @name (with the - * understanding that it is already pointing to a a %NAME_MAX+1 sized - * buffer. get_name() should return %0 on success, a negative error code - * or error. @get_name will be called without @parent->i_mutex held. - * - * get_parent: - * @get_parent should find the parent directory for the given @child which - * is also a directory. In the event that it cannot be found, or storage - * space cannot be allocated, a %ERR_PTR should be returned. - * - * get_dentry: - * Given a &super_block (@sb) and a pointer to a file-system specific inode - * identifier, possibly an inode number, (@inump) get_dentry() should find - * the identified inode and return a dentry for that inode. Any suitable - * dentry can be returned including, if necessary, a new dentry created with - * d_alloc_root. The caller can then find any other extant dentrys by - * following the d_alias links. If a new dentry was created using - * d_alloc_root, DCACHE_NFSD_DISCONNECTED should be set, and the dentry - * should be d_rehash()ed. - * - * If the inode cannot be found, either a %NULL pointer or an %ERR_PTR code - * can be returned. The @inump will be whatever was passed to - * nfsd_find_fh_dentry() in either the @obj or @parent parameters. - * - * Locking rules: - * get_parent is called with child->d_inode->i_mutex down - * get_name is not (which is possibly inconsistent) - */ - -struct export_operations { - struct dentry *(*decode_fh)(struct super_block *sb, __u32 *fh, int fh_len, int fh_type, - int (*acceptable)(void *context, struct dentry *de), - void *context); - int (*encode_fh)(struct dentry *de, __u32 *fh, int *max_len, - int connectable); - - /* the following are only called from the filesystem itself */ - int (*get_name)(struct dentry *parent, char *name, - struct dentry *child); - struct dentry * (*get_parent)(struct dentry *child); - struct dentry * (*get_dentry)(struct super_block *sb, void *inump); - - /* This is set by the exporting module to a standard helper */ - struct dentry * (*find_exported_dentry)( - struct super_block *sb, void *obj, void *parent, - int (*acceptable)(void *context, struct dentry *de), - void *context); - - -}; - -extern struct dentry * -find_exported_dentry(struct super_block *sb, void *obj, void *parent, - int (*acceptable)(void *context, struct dentry *de), - void *context); - struct file_system_type { const char *name; int fs_flags; @@ -1526,7 +1429,7 @@ extern void putname(const char *name); #ifdef CONFIG_BLOCK extern int register_blkdev(unsigned int, const char *); -extern int unregister_blkdev(unsigned int, const char *); +extern void unregister_blkdev(unsigned int, const char *); extern struct block_device *bdget(dev_t); extern void bd_set_size(struct block_device *, loff_t size); extern void bd_forget(struct inode *inode); @@ -1566,7 +1469,7 @@ extern int alloc_chrdev_region(dev_t *, unsigned, unsigned, const char *); extern int register_chrdev_region(dev_t, unsigned, const char *); extern int register_chrdev(unsigned int, const char *, const struct file_operations *); -extern int unregister_chrdev(unsigned int, const char *); +extern void unregister_chrdev(unsigned int, const char *); extern void unregister_chrdev_region(dev_t, unsigned); extern int chrdev_open(struct inode *, struct file *); extern void chrdev_show(struct seq_file *,off_t); @@ -2050,5 +1953,9 @@ static inline void free_secdata(void *secdata) { } #endif /* CONFIG_SECURITY */ +int proc_nr_files(ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos); + + #endif /* __KERNEL__ */ #endif /* _LINUX_FS_H */ diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index 12e631f0fb77..1831b196c70a 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -53,6 +53,7 @@ struct gianfar_platform_data { u32 bus_id; u32 phy_id; u8 mac_addr[6]; + phy_interface_t interface; }; struct gianfar_mdio_data { @@ -112,7 +113,7 @@ struct fsl_usb2_platform_data { struct fsl_spi_platform_data { u32 initial_spmode; /* initial SPMODE value */ u16 bus_num; - + bool qe_mode; /* board specific information */ u16 max_chipselect; void (*activate_cs)(u8 cs, u8 polarity); diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 0d2ef0b082a6..bc68dd9a6d41 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -30,6 +30,9 @@ struct vm_area_struct; * cannot handle allocation failures. * * __GFP_NORETRY: The VM implementation must not retry indefinitely. + * + * __GFP_MOVABLE: Flag that this page will be movable by the page migration + * mechanism or reclaimed */ #define __GFP_WAIT ((__force gfp_t)0x10u) /* Can wait and reschedule? */ #define __GFP_HIGH ((__force gfp_t)0x20u) /* Should access emergency pools? */ @@ -45,6 +48,7 @@ struct vm_area_struct; #define __GFP_NOMEMALLOC ((__force gfp_t)0x10000u) /* Don't use emergency reserves */ #define __GFP_HARDWALL ((__force gfp_t)0x20000u) /* Enforce hardwall cpuset memory allocs */ #define __GFP_THISNODE ((__force gfp_t)0x40000u)/* No fallback, no policies */ +#define __GFP_MOVABLE ((__force gfp_t)0x80000u) /* Page is movable */ #define __GFP_BITS_SHIFT 20 /* Room for 20 __GFP_FOO bits */ #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1)) @@ -53,7 +57,8 @@ struct vm_area_struct; #define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \ __GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \ __GFP_NOFAIL|__GFP_NORETRY|__GFP_COMP| \ - __GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE) + __GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE| \ + __GFP_MOVABLE) /* This equals 0, but use constants in case they ever change */ #define GFP_NOWAIT (GFP_ATOMIC & ~__GFP_HIGH) @@ -65,6 +70,15 @@ struct vm_area_struct; #define GFP_USER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL) #define GFP_HIGHUSER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL | \ __GFP_HIGHMEM) +#define GFP_HIGHUSER_MOVABLE (__GFP_WAIT | __GFP_IO | __GFP_FS | \ + __GFP_HARDWALL | __GFP_HIGHMEM | \ + __GFP_MOVABLE) +#define GFP_NOFS_PAGECACHE (__GFP_WAIT | __GFP_IO | __GFP_MOVABLE) +#define GFP_USER_PAGECACHE (__GFP_WAIT | __GFP_IO | __GFP_FS | \ + __GFP_HARDWALL | __GFP_MOVABLE) +#define GFP_HIGHUSER_PAGECACHE (__GFP_WAIT | __GFP_IO | __GFP_FS | \ + __GFP_HARDWALL | __GFP_HIGHMEM | \ + __GFP_MOVABLE) #ifdef CONFIG_NUMA #define GFP_THISNODE (__GFP_THISNODE | __GFP_NOWARN | __GFP_NORETRY) @@ -92,6 +106,9 @@ static inline enum zone_type gfp_zone(gfp_t flags) if (flags & __GFP_DMA32) return ZONE_DMA32; #endif + if ((flags & (__GFP_HIGHMEM | __GFP_MOVABLE)) == + (__GFP_HIGHMEM | __GFP_MOVABLE)) + return ZONE_MOVABLE; #ifdef CONFIG_HIGHMEM if (flags & __GFP_HIGHMEM) return ZONE_HIGHMEM; diff --git a/include/linux/highmem.h b/include/linux/highmem.h index 98e2cce996a4..1fcb0033179e 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h @@ -73,10 +73,27 @@ static inline void clear_user_highpage(struct page *page, unsigned long vaddr) } #ifndef __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE +/** + * __alloc_zeroed_user_highpage - Allocate a zeroed HIGHMEM page for a VMA with caller-specified movable GFP flags + * @movableflags: The GFP flags related to the pages future ability to move like __GFP_MOVABLE + * @vma: The VMA the page is to be allocated for + * @vaddr: The virtual address the page will be inserted into + * + * This function will allocate a page for a VMA but the caller is expected + * to specify via movableflags whether the page will be movable in the + * future or not + * + * An architecture may override this function by defining + * __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE and providing their own + * implementation. + */ static inline struct page * -alloc_zeroed_user_highpage(struct vm_area_struct *vma, unsigned long vaddr) +__alloc_zeroed_user_highpage(gfp_t movableflags, + struct vm_area_struct *vma, + unsigned long vaddr) { - struct page *page = alloc_page_vma(GFP_HIGHUSER, vma, vaddr); + struct page *page = alloc_page_vma(GFP_HIGHUSER | movableflags, + vma, vaddr); if (page) clear_user_highpage(page, vaddr); @@ -85,6 +102,21 @@ alloc_zeroed_user_highpage(struct vm_area_struct *vma, unsigned long vaddr) } #endif +/** + * alloc_zeroed_user_highpage_movable - Allocate a zeroed HIGHMEM page for a VMA that the caller knows can move + * @vma: The VMA the page is to be allocated for + * @vaddr: The virtual address the page will be inserted into + * + * This function will allocate a page for a VMA that the caller knows will + * be able to migrate in the future using move_pages() or reclaimed + */ +static inline struct page * +alloc_zeroed_user_highpage_movable(struct vm_area_struct *vma, + unsigned long vaddr) +{ + return __alloc_zeroed_user_highpage(__GFP_MOVABLE, vma, vaddr); +} + static inline void clear_highpage(struct page *page) { void *kaddr = kmap_atomic(page, KM_USER0); diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 2c13715e9dde..49b7053043ad 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -15,6 +15,7 @@ static inline int is_vm_hugetlb_page(struct vm_area_struct *vma) } int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *); +int hugetlb_treat_movable_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *); int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *); int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int); void unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long); @@ -29,6 +30,7 @@ int hugetlb_reserve_pages(struct inode *inode, long from, long to); void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed); extern unsigned long max_huge_pages; +extern unsigned long hugepages_treat_as_movable; extern const unsigned long hugetlb_zero, hugetlb_infinity; extern int sysctl_hugetlb_shm_group; diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 0e0fedd2039a..260d6d76c5f3 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -50,14 +50,14 @@ */ #define JBD_DEFAULT_MAX_COMMIT_AGE 5 -#ifdef CONFIG_JBD_DEBUG +#ifdef CONFIG_JBD2_DEBUG /* * Define JBD_EXPENSIVE_CHECKING to enable more expensive internal * consistency checks. By default we don't do this unless - * CONFIG_JBD_DEBUG is on. + * CONFIG_JBD2_DEBUG is on. */ #define JBD_EXPENSIVE_CHECKING -extern int jbd2_journal_enable_debug; +extern u8 jbd2_journal_enable_debug; #define jbd_debug(n, f, a...) \ do { \ diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index 5f06527dca21..f73de6fb5c68 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -7,9 +7,9 @@ #include <linux/errno.h> -#define KSYM_NAME_LEN 127 -#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + KSYM_NAME_LEN + \ - 2*(BITS_PER_LONG*3/10) + MODULE_NAME_LEN + 1) +#define KSYM_NAME_LEN 128 +#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \ + 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1) #ifdef CONFIG_KALLSYMS /* Lookup the address for a symbol. Returns 0 if not found. */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 7a4852505914..1eb9cde550c4 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -210,6 +210,7 @@ extern enum system_states { #define TAINT_MACHINE_CHECK (1<<4) #define TAINT_BAD_PAGE (1<<5) #define TAINT_USER (1<<6) +#define TAINT_DIE (1<<7) extern void dump_stack(void); diff --git a/include/linux/kernelcapi.h b/include/linux/kernelcapi.h index aea34e74c496..8c4350a9ed87 100644 --- a/include/linux/kernelcapi.h +++ b/include/linux/kernelcapi.h @@ -64,7 +64,7 @@ struct capi20_appl { unsigned long nrecvdatapkt; unsigned long nsentctlpkt; unsigned long nsentdatapkt; - struct semaphore recv_sem; + struct mutex recv_mtx; struct sk_buff_head recv_queue; struct work_struct recv_work; int release_in_progress; diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 10f505c8431d..5dc13848891b 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -36,13 +36,57 @@ static inline int request_module(const char * name, ...) { return -ENOSYS; } #define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x))) struct key; -extern int call_usermodehelper_keys(char *path, char *argv[], char *envp[], - struct key *session_keyring, int wait); +struct file; +struct subprocess_info; + +/* Allocate a subprocess_info structure */ +struct subprocess_info *call_usermodehelper_setup(char *path, + char **argv, char **envp); + +/* Set various pieces of state into the subprocess_info structure */ +void call_usermodehelper_setkeys(struct subprocess_info *info, + struct key *session_keyring); +int call_usermodehelper_stdinpipe(struct subprocess_info *sub_info, + struct file **filp); +void call_usermodehelper_setcleanup(struct subprocess_info *info, + void (*cleanup)(char **argv, char **envp)); + +enum umh_wait { + UMH_NO_WAIT = -1, /* don't wait at all */ + UMH_WAIT_EXEC = 0, /* wait for the exec, but not the process */ + UMH_WAIT_PROC = 1, /* wait for the process to complete */ +}; + +/* Actually execute the sub-process */ +int call_usermodehelper_exec(struct subprocess_info *info, enum umh_wait wait); + +/* Free the subprocess_info. This is only needed if you're not going + to call call_usermodehelper_exec */ +void call_usermodehelper_freeinfo(struct subprocess_info *info); static inline int -call_usermodehelper(char *path, char **argv, char **envp, int wait) +call_usermodehelper(char *path, char **argv, char **envp, enum umh_wait wait) { - return call_usermodehelper_keys(path, argv, envp, NULL, wait); + struct subprocess_info *info; + + info = call_usermodehelper_setup(path, argv, envp); + if (info == NULL) + return -ENOMEM; + return call_usermodehelper_exec(info, wait); +} + +static inline int +call_usermodehelper_keys(char *path, char **argv, char **envp, + struct key *session_keyring, enum umh_wait wait) +{ + struct subprocess_info *info; + + info = call_usermodehelper_setup(path, argv, envp); + if (info == NULL) + return -ENOMEM; + + call_usermodehelper_setkeys(info, session_keyring); + return call_usermodehelper_exec(info, wait); } extern void usermodehelper_init(void); diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 06cbf41d32d2..aa2fe22b1baa 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -36,15 +36,24 @@ extern char uevent_helper[]; /* counter to tag the uevent, read only except for the kobject core */ extern u64 uevent_seqnum; -/* the actions here must match the proper string in lib/kobject_uevent.c */ -typedef int __bitwise kobject_action_t; +/* + * The actions here must match the index to the string array + * in lib/kobject_uevent.c + * + * Do not add new actions here without checking with the driver-core + * maintainers. Action strings are not meant to express subsystem + * or device specific properties. In most cases you want to send a + * kobject_uevent_env(kobj, KOBJ_CHANGE, env) with additional event + * specific variables added to the event environment. + */ enum kobject_action { - KOBJ_ADD = (__force kobject_action_t) 0x01, /* exclusive to core */ - KOBJ_REMOVE = (__force kobject_action_t) 0x02, /* exclusive to core */ - KOBJ_CHANGE = (__force kobject_action_t) 0x03, /* device state change */ - KOBJ_OFFLINE = (__force kobject_action_t) 0x04, /* device offline */ - KOBJ_ONLINE = (__force kobject_action_t) 0x05, /* device online */ - KOBJ_MOVE = (__force kobject_action_t) 0x06, /* device move */ + KOBJ_ADD, + KOBJ_REMOVE, + KOBJ_CHANGE, + KOBJ_MOVE, + KOBJ_ONLINE, + KOBJ_OFFLINE, + KOBJ_MAX }; struct kobject { diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 23adf6075ae4..51464d12a4e5 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -116,9 +116,12 @@ struct kprobe { */ struct jprobe { struct kprobe kp; - kprobe_opcode_t *entry; /* probe handling code to jump to */ + void *entry; /* probe handling code to jump to */ }; +/* For backward compatibility with old code using JPROBE_ENTRY() */ +#define JPROBE_ENTRY(handler) (handler) + DECLARE_PER_CPU(struct kprobe *, current_kprobe); DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); @@ -211,6 +214,7 @@ int longjmp_break_handler(struct kprobe *, struct pt_regs *); int register_jprobe(struct jprobe *p); void unregister_jprobe(struct jprobe *p); void jprobe_return(void); +unsigned long arch_deref_entry_point(void *); int register_kretprobe(struct kretprobe *rp); void unregister_kretprobe(struct kretprobe *rp); diff --git a/include/linux/lguest.h b/include/linux/lguest.h new file mode 100644 index 000000000000..500aace21ca7 --- /dev/null +++ b/include/linux/lguest.h @@ -0,0 +1,85 @@ +/* Things the lguest guest needs to know. Note: like all lguest interfaces, + * this is subject to wild and random change between versions. */ +#ifndef _ASM_LGUEST_H +#define _ASM_LGUEST_H + +#ifndef __ASSEMBLY__ +#include <asm/irq.h> + +#define LHCALL_FLUSH_ASYNC 0 +#define LHCALL_LGUEST_INIT 1 +#define LHCALL_CRASH 2 +#define LHCALL_LOAD_GDT 3 +#define LHCALL_NEW_PGTABLE 4 +#define LHCALL_FLUSH_TLB 5 +#define LHCALL_LOAD_IDT_ENTRY 6 +#define LHCALL_SET_STACK 7 +#define LHCALL_TS 8 +#define LHCALL_SET_CLOCKEVENT 9 +#define LHCALL_HALT 10 +#define LHCALL_GET_WALLCLOCK 11 +#define LHCALL_BIND_DMA 12 +#define LHCALL_SEND_DMA 13 +#define LHCALL_SET_PTE 14 +#define LHCALL_SET_PMD 15 +#define LHCALL_LOAD_TLS 16 + +#define LG_CLOCK_MIN_DELTA 100UL +#define LG_CLOCK_MAX_DELTA ULONG_MAX + +#define LGUEST_TRAP_ENTRY 0x1F + +static inline unsigned long +hcall(unsigned long call, + unsigned long arg1, unsigned long arg2, unsigned long arg3) +{ + asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY) + : "=a"(call) + : "a"(call), "d"(arg1), "b"(arg2), "c"(arg3) + : "memory"); + return call; +} + +void async_hcall(unsigned long call, + unsigned long arg1, unsigned long arg2, unsigned long arg3); + +/* Can't use our min() macro here: needs to be a constant */ +#define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32) + +#define LHCALL_RING_SIZE 64 +struct hcall_ring +{ + u32 eax, edx, ebx, ecx; +}; + +/* All the good stuff happens here: guest registers it with LGUEST_INIT */ +struct lguest_data +{ +/* Fields which change during running: */ + /* 512 == enabled (same as eflags) */ + unsigned int irq_enabled; + /* Interrupts blocked by guest. */ + DECLARE_BITMAP(blocked_interrupts, LGUEST_IRQS); + + /* Virtual address of page fault. */ + unsigned long cr2; + + /* Async hypercall ring. 0xFF == done, 0 == pending. */ + u8 hcall_status[LHCALL_RING_SIZE]; + struct hcall_ring hcalls[LHCALL_RING_SIZE]; + +/* Fields initialized by the hypervisor at boot: */ + /* Memory not to try to access */ + unsigned long reserve_mem; + /* ID of this guest (used by network driver to set ethernet address) */ + u16 guestid; + /* KHz for the TSC clock. */ + u32 tsc_khz; + +/* Fields initialized by the guest at boot: */ + /* Instruction range to suppress interrupts even if enabled */ + unsigned long noirq_start, noirq_end; +}; +extern struct lguest_data lguest_data; +#endif /* __ASSEMBLY__ */ +#endif /* _ASM_LGUEST_H */ diff --git a/include/linux/lguest_bus.h b/include/linux/lguest_bus.h new file mode 100644 index 000000000000..c9b4e05fee49 --- /dev/null +++ b/include/linux/lguest_bus.h @@ -0,0 +1,48 @@ +#ifndef _ASM_LGUEST_DEVICE_H +#define _ASM_LGUEST_DEVICE_H +/* Everything you need to know about lguest devices. */ +#include <linux/device.h> +#include <linux/lguest.h> +#include <linux/lguest_launcher.h> + +struct lguest_device { + /* Unique busid, and index into lguest_page->devices[] */ + unsigned int index; + + struct device dev; + + /* Driver can hang data off here. */ + void *private; +}; + +/* By convention, each device can use irq index+1 if it wants to. */ +static inline int lgdev_irq(const struct lguest_device *dev) +{ + return dev->index + 1; +} + +/* dma args must not be vmalloced! */ +void lguest_send_dma(unsigned long key, struct lguest_dma *dma); +int lguest_bind_dma(unsigned long key, struct lguest_dma *dmas, + unsigned int num, u8 irq); +void lguest_unbind_dma(unsigned long key, struct lguest_dma *dmas); + +/* Map the virtual device space */ +void *lguest_map(unsigned long phys_addr, unsigned long pages); +void lguest_unmap(void *); + +struct lguest_driver { + const char *name; + struct module *owner; + u16 device_type; + int (*probe)(struct lguest_device *dev); + void (*remove)(struct lguest_device *dev); + + struct device_driver drv; +}; + +extern int register_lguest_driver(struct lguest_driver *drv); +extern void unregister_lguest_driver(struct lguest_driver *drv); + +extern struct lguest_device_desc *lguest_devices; /* Just past max_pfn */ +#endif /* _ASM_LGUEST_DEVICE_H */ diff --git a/include/linux/lguest_launcher.h b/include/linux/lguest_launcher.h new file mode 100644 index 000000000000..0ba414a40c80 --- /dev/null +++ b/include/linux/lguest_launcher.h @@ -0,0 +1,73 @@ +#ifndef _ASM_LGUEST_USER +#define _ASM_LGUEST_USER +/* Everything the "lguest" userspace program needs to know. */ +/* They can register up to 32 arrays of lguest_dma. */ +#define LGUEST_MAX_DMA 32 +/* At most we can dma 16 lguest_dma in one op. */ +#define LGUEST_MAX_DMA_SECTIONS 16 + +/* How many devices? Assume each one wants up to two dma arrays per device. */ +#define LGUEST_MAX_DEVICES (LGUEST_MAX_DMA/2) + +struct lguest_dma +{ + /* 0 if free to be used, filled by hypervisor. */ + u32 used_len; + unsigned long addr[LGUEST_MAX_DMA_SECTIONS]; + u16 len[LGUEST_MAX_DMA_SECTIONS]; +}; + +struct lguest_block_page +{ + /* 0 is a read, 1 is a write. */ + int type; + u32 sector; /* Offset in device = sector * 512. */ + u32 bytes; /* Length expected to be read/written in bytes */ + /* 0 = pending, 1 = done, 2 = done, error */ + int result; + u32 num_sectors; /* Disk length = num_sectors * 512 */ +}; + +/* There is a shared page of these. */ +struct lguest_net +{ + /* Simply the mac address (with multicast bit meaning promisc). */ + unsigned char mac[6]; +}; + +/* Where the Host expects the Guest to SEND_DMA console output to. */ +#define LGUEST_CONSOLE_DMA_KEY 0 + +/* We have a page of these descriptors in the lguest_device page. */ +struct lguest_device_desc { + u16 type; +#define LGUEST_DEVICE_T_CONSOLE 1 +#define LGUEST_DEVICE_T_NET 2 +#define LGUEST_DEVICE_T_BLOCK 3 + + u16 features; +#define LGUEST_NET_F_NOCSUM 0x4000 /* Don't bother checksumming */ +#define LGUEST_DEVICE_F_RANDOMNESS 0x8000 /* IRQ is fairly random */ + + u16 status; +/* 256 and above are device specific. */ +#define LGUEST_DEVICE_S_ACKNOWLEDGE 1 /* We have seen device. */ +#define LGUEST_DEVICE_S_DRIVER 2 /* We have found a driver */ +#define LGUEST_DEVICE_S_DRIVER_OK 4 /* Driver says OK! */ +#define LGUEST_DEVICE_S_REMOVED 8 /* Device has gone away. */ +#define LGUEST_DEVICE_S_REMOVED_ACK 16 /* Driver has been told. */ +#define LGUEST_DEVICE_S_FAILED 128 /* Something actually failed */ + + u16 num_pages; + u32 pfn; +}; + +/* Write command first word is a request. */ +enum lguest_req +{ + LHREQ_INITIALIZE, /* + pfnlimit, pgdir, start, pageoffset */ + LHREQ_GETDMA, /* + addr (returns &lguest_dma, irq in ->used_len) */ + LHREQ_IRQ, /* + irq */ + LHREQ_BREAK, /* + on/off flag (on blocks until someone does off) */ +}; +#endif /* _ASM_LGUEST_USER */ diff --git a/include/linux/limits.h b/include/linux/limits.h index eaf2e099f125..2d0f94162fb3 100644 --- a/include/linux/limits.h +++ b/include/linux/limits.h @@ -5,8 +5,6 @@ #define NGROUPS_MAX 65536 /* supplemental group IDs are available */ #define ARG_MAX 131072 /* # bytes of args + environ for exec() */ -#define CHILD_MAX 999 /* no limit :-) */ -#define OPEN_MAX 256 /* # open files a process may have */ #define LINK_MAX 127 /* # links a file may have */ #define MAX_CANON 255 /* size of the canonical input queue */ #define MAX_INPUT 255 /* size of the type-ahead buffer */ diff --git a/include/linux/linux_logo.h b/include/linux/linux_logo.h index 9c01bde5bf1b..08a92969c76e 100644 --- a/include/linux/linux_logo.h +++ b/include/linux/linux_logo.h @@ -33,5 +33,13 @@ struct linux_logo { }; extern const struct linux_logo *fb_find_logo(int depth); +#ifdef CONFIG_FB_LOGO_EXTRA +extern void fb_append_extra_logo(const struct linux_logo *logo, + unsigned int n); +#else +static inline void fb_append_extra_logo(const struct linux_logo *logo, + unsigned int n) +{} +#endif #endif /* _LINUX_LINUX_LOGO_H */ diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h index 246de1d84a26..6f1637c61e10 100644 --- a/include/linux/lockd/bind.h +++ b/include/linux/lockd/bind.h @@ -27,6 +27,7 @@ struct nlmsvc_binding { struct nfs_fh *, struct file **); void (*fclose)(struct file *); + unsigned long (*get_grace_period)(void); }; extern struct nlmsvc_binding * nlmsvc_ops; @@ -38,4 +39,12 @@ extern int nlmclnt_proc(struct inode *, int, struct file_lock *); extern int lockd_up(int proto); extern void lockd_down(void); +unsigned long get_nfs_grace_period(void); + +#ifdef CONFIG_NFSD_V4 +unsigned long get_nfs4_grace_period(void); +#else +static inline unsigned long get_nfs4_grace_period(void) {return 0;} +#endif + #endif /* LINUX_LOCKD_BIND_H */ diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index 14c937d345cb..0e843bf65877 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -1,7 +1,8 @@ /* * Runtime locking correctness validator * - * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> + * Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> + * Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> * * see Documentation/lockdep-design.txt for more details. */ @@ -9,6 +10,7 @@ #define __LINUX_LOCKDEP_H struct task_struct; +struct lockdep_map; #ifdef CONFIG_LOCKDEP @@ -114,8 +116,44 @@ struct lock_class { const char *name; int name_version; + +#ifdef CONFIG_LOCK_STAT + unsigned long contention_point[4]; +#endif +}; + +#ifdef CONFIG_LOCK_STAT +struct lock_time { + s64 min; + s64 max; + s64 total; + unsigned long nr; +}; + +enum bounce_type { + bounce_acquired_write, + bounce_acquired_read, + bounce_contended_write, + bounce_contended_read, + nr_bounce_types, + + bounce_acquired = bounce_acquired_write, + bounce_contended = bounce_contended_write, }; +struct lock_class_stats { + unsigned long contention_point[4]; + struct lock_time read_waittime; + struct lock_time write_waittime; + struct lock_time read_holdtime; + struct lock_time write_holdtime; + unsigned long bounces[nr_bounce_types]; +}; + +struct lock_class_stats lock_stats(struct lock_class *class); +void clear_lock_stats(struct lock_class *class); +#endif + /* * Map the lock object (the lock instance) to the lock-class object. * This is embedded into specific lock instances: @@ -124,6 +162,9 @@ struct lockdep_map { struct lock_class_key *key; struct lock_class *class_cache; const char *name; +#ifdef CONFIG_LOCK_STAT + int cpu; +#endif }; /* @@ -165,6 +206,10 @@ struct held_lock { unsigned long acquire_ip; struct lockdep_map *instance; +#ifdef CONFIG_LOCK_STAT + u64 waittime_stamp; + u64 holdtime_stamp; +#endif /* * The lock-stack is unified in that the lock chains of interrupt * contexts nest ontop of process context chains, but we 'separate' @@ -281,6 +326,30 @@ struct lock_class_key { }; #endif /* !LOCKDEP */ +#ifdef CONFIG_LOCK_STAT + +extern void lock_contended(struct lockdep_map *lock, unsigned long ip); +extern void lock_acquired(struct lockdep_map *lock); + +#define LOCK_CONTENDED(_lock, try, lock) \ +do { \ + if (!try(_lock)) { \ + lock_contended(&(_lock)->dep_map, _RET_IP_); \ + lock(_lock); \ + } \ + lock_acquired(&(_lock)->dep_map); \ +} while (0) + +#else /* CONFIG_LOCK_STAT */ + +#define lock_contended(lockdep_map, ip) do {} while (0) +#define lock_acquired(lockdep_map) do {} while (0) + +#define LOCK_CONTENDED(_lock, try, lock) \ + lock(_lock) + +#endif /* CONFIG_LOCK_STAT */ + #if defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_GENERIC_HARDIRQS) extern void early_init_irq_lock_class(void); #else diff --git a/include/linux/magic.h b/include/linux/magic.h index 9d713c03e3da..36cc20dfd142 100644 --- a/include/linux/magic.h +++ b/include/linux/magic.h @@ -13,7 +13,6 @@ #define HPFS_SUPER_MAGIC 0xf995e849 #define ISOFS_SUPER_MAGIC 0x9660 #define JFFS2_SUPER_MAGIC 0x72b6 -#define KVMFS_SUPER_MAGIC 0x19700426 #define ANON_INODE_FS_MAGIC 0x09041934 #define MINIX_SUPER_MAGIC 0x137F /* original minix fs */ diff --git a/include/linux/major.h b/include/linux/major.h index 7e7c9093919a..0cb98053537a 100644 --- a/include/linux/major.h +++ b/include/linux/major.h @@ -158,6 +158,8 @@ #define VXSPEC_MAJOR 200 /* VERITAS volume config driver */ #define VXDMP_MAJOR 201 /* VERITAS volume multipath driver */ +#define XENVBD_MAJOR 202 /* Xen virtual block device */ + #define MSR_MAJOR 202 #define CPUID_MAJOR 203 diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index daabb3aa1ec6..e147cf50529f 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -159,7 +159,7 @@ extern void mpol_fix_fork_child_flag(struct task_struct *p); extern struct mempolicy default_policy; extern struct zonelist *huge_zonelist(struct vm_area_struct *vma, - unsigned long addr); + unsigned long addr, gfp_t gfp_flags); extern unsigned slab_node(struct mempolicy *policy); extern enum zone_type policy_zone; @@ -256,9 +256,9 @@ static inline void mpol_fix_fork_child_flag(struct task_struct *p) #define set_cpuset_being_rebound(x) do {} while (0) static inline struct zonelist *huge_zonelist(struct vm_area_struct *vma, - unsigned long addr) + unsigned long addr, gfp_t gfp_flags) { - return NODE_DATA(0)->node_zonelists + gfp_zone(GFP_HIGHUSER); + return NODE_DATA(0)->node_zonelists + gfp_zone(gfp_flags); } static inline int do_migrate_pages(struct mm_struct *mm, diff --git a/include/linux/mm.h b/include/linux/mm.h index 97d0cddfd223..c456c3a1c28e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -168,6 +168,8 @@ extern unsigned int kobjsize(const void *objp); #define VM_INSERTPAGE 0x02000000 /* The vma has had "vm_insert_page()" done on it */ #define VM_ALWAYSDUMP 0x04000000 /* Always include in core dumps */ +#define VM_CAN_NONLINEAR 0x08000000 /* Has ->fault & does nonlinear pages */ + #ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */ #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS #endif @@ -190,6 +192,30 @@ extern unsigned int kobjsize(const void *objp); */ extern pgprot_t protection_map[16]; +#define FAULT_FLAG_WRITE 0x01 /* Fault was a write access */ +#define FAULT_FLAG_NONLINEAR 0x02 /* Fault was via a nonlinear mapping */ + + +/* + * vm_fault is filled by the the pagefault handler and passed to the vma's + * ->fault function. The vma's ->fault is responsible for returning a bitmask + * of VM_FAULT_xxx flags that give details about how the fault was handled. + * + * pgoff should be used in favour of virtual_address, if possible. If pgoff + * is used, one may set VM_CAN_NONLINEAR in the vma->vm_flags to get nonlinear + * mapping support. + */ +struct vm_fault { + unsigned int flags; /* FAULT_FLAG_xxx flags */ + pgoff_t pgoff; /* Logical page offset based on vma */ + void __user *virtual_address; /* Faulting virtual address */ + + struct page *page; /* ->fault handlers should return a + * page here, unless VM_FAULT_NOPAGE + * is set (which is also implied by + * VM_FAULT_ERROR). + */ +}; /* * These are the virtual MM functions - opening of an area, closing and @@ -199,9 +225,11 @@ extern pgprot_t protection_map[16]; struct vm_operations_struct { void (*open)(struct vm_area_struct * area); void (*close)(struct vm_area_struct * area); - struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int *type); - unsigned long (*nopfn)(struct vm_area_struct * area, unsigned long address); - int (*populate)(struct vm_area_struct * area, unsigned long address, unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock); + int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf); + struct page *(*nopage)(struct vm_area_struct *area, + unsigned long address, int *type); + unsigned long (*nopfn)(struct vm_area_struct *area, + unsigned long address); /* notification that a previously read-only page is about to become * writable, if an error is returned it will cause a SIGBUS */ @@ -599,6 +627,7 @@ static inline struct address_space *page_mapping(struct page *page) { struct address_space *mapping = page->mapping; + VM_BUG_ON(PageSlab(page)); if (unlikely(PageSwapCache(page))) mapping = &swapper_space; #ifdef CONFIG_SLUB @@ -654,7 +683,6 @@ static inline int page_mapped(struct page *page) */ #define NOPAGE_SIGBUS (NULL) #define NOPAGE_OOM ((struct page *) (-1)) -#define NOPAGE_REFAULT ((struct page *) (-2)) /* Return to userspace, rerun */ /* * Error return values for the *_nopfn functions @@ -668,16 +696,18 @@ static inline int page_mapped(struct page *page) * Used to decide whether a process gets delivered SIGBUS or * just gets major/minor fault counters bumped up. */ -#define VM_FAULT_OOM 0x00 -#define VM_FAULT_SIGBUS 0x01 -#define VM_FAULT_MINOR 0x02 -#define VM_FAULT_MAJOR 0x03 - -/* - * Special case for get_user_pages. - * Must be in a distinct bit from the above VM_FAULT_ flags. - */ -#define VM_FAULT_WRITE 0x10 + +#define VM_FAULT_MINOR 0 /* For backwards compat. Remove me quickly. */ + +#define VM_FAULT_OOM 0x0001 +#define VM_FAULT_SIGBUS 0x0002 +#define VM_FAULT_MAJOR 0x0004 +#define VM_FAULT_WRITE 0x0008 /* Special case for get_user_pages */ + +#define VM_FAULT_NOPAGE 0x0100 /* ->fault installed the pte, not return page */ +#define VM_FAULT_LOCKED 0x0200 /* ->fault locked the returned page */ + +#define VM_FAULT_ERROR (VM_FAULT_OOM | VM_FAULT_SIGBUS) #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) @@ -761,20 +791,10 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping, extern int vmtruncate(struct inode * inode, loff_t offset); extern int vmtruncate_range(struct inode * inode, loff_t offset, loff_t end); -extern int install_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, struct page *page, pgprot_t prot); -extern int install_file_pte(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long pgoff, pgprot_t prot); #ifdef CONFIG_MMU -extern int __handle_mm_fault(struct mm_struct *mm,struct vm_area_struct *vma, +extern int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, int write_access); - -static inline int handle_mm_fault(struct mm_struct *mm, - struct vm_area_struct *vma, unsigned long address, - int write_access) -{ - return __handle_mm_fault(mm, vma, address, write_access) & - (~VM_FAULT_WRITE); -} #else static inline int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, @@ -788,7 +808,6 @@ static inline int handle_mm_fault(struct mm_struct *mm, extern int make_pages_present(unsigned long addr, unsigned long end); extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write); -void install_arg_page(struct vm_area_struct *, struct page *, unsigned long); int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, int len, int write, int force, struct page **pages, struct vm_area_struct **vmas); @@ -805,32 +824,42 @@ int FASTCALL(set_page_dirty(struct page *page)); int set_page_dirty_lock(struct page *page); int clear_page_dirty_for_io(struct page *page); +extern unsigned long move_page_tables(struct vm_area_struct *vma, + unsigned long old_addr, struct vm_area_struct *new_vma, + unsigned long new_addr, unsigned long len); extern unsigned long do_mremap(unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags, unsigned long new_addr); +extern int mprotect_fixup(struct vm_area_struct *vma, + struct vm_area_struct **pprev, unsigned long start, + unsigned long end, unsigned long newflags); /* - * Prototype to add a shrinker callback for ageable caches. - * - * These functions are passed a count `nr_to_scan' and a gfpmask. They should - * scan `nr_to_scan' objects, attempting to free them. + * A callback you can register to apply pressure to ageable caches. * - * The callback must return the number of objects which remain in the cache. + * 'shrink' is passed a count 'nr_to_scan' and a 'gfpmask'. It should + * look through the least-recently-used 'nr_to_scan' entries and + * attempt to free them up. It should return the number of objects + * which remain in the cache. If it returns -1, it means it cannot do + * any scanning at this time (eg. there is a risk of deadlock). * - * The callback will be passed nr_to_scan == 0 when the VM is querying the - * cache size, so a fastpath for that case is appropriate. - */ -typedef int (*shrinker_t)(int nr_to_scan, gfp_t gfp_mask); - -/* - * Add an aging callback. The int is the number of 'seeks' it takes - * to recreate one of the objects that these functions age. + * The 'gfpmask' refers to the allocation we are currently trying to + * fulfil. + * + * Note that 'shrink' will be passed nr_to_scan == 0 when the VM is + * querying the cache size, so a fastpath for that case is appropriate. */ +struct shrinker { + int (*shrink)(int nr_to_scan, gfp_t gfp_mask); + int seeks; /* seeks to recreate an obj */ -#define DEFAULT_SEEKS 2 -struct shrinker; -extern struct shrinker *set_shrinker(int, shrinker_t); -extern void remove_shrinker(struct shrinker *shrinker); + /* These are for internal use */ + struct list_head list; + long nr; /* objs pending delete */ +}; +#define DEFAULT_SEEKS 2 /* A good number if you don't know better. */ +extern void register_shrinker(struct shrinker *); +extern void unregister_shrinker(struct shrinker *); /* * Some shared mappigns will want the pages marked read-only @@ -1099,9 +1128,7 @@ extern void truncate_inode_pages_range(struct address_space *, loff_t lstart, loff_t lend); /* generic vm_area_ops exported for stackable file systems */ -extern struct page *filemap_nopage(struct vm_area_struct *, unsigned long, int *); -extern int filemap_populate(struct vm_area_struct *, unsigned long, - unsigned long, pgprot_t, unsigned long, int); +extern int filemap_fault(struct vm_area_struct *, struct vm_fault *); /* mm/page-writeback.c */ int write_one_page(struct page *page, int wait); @@ -1116,13 +1143,20 @@ int do_page_cache_readahead(struct address_space *mapping, struct file *filp, pgoff_t offset, unsigned long nr_to_read); int force_page_cache_readahead(struct address_space *mapping, struct file *filp, pgoff_t offset, unsigned long nr_to_read); -unsigned long page_cache_readahead(struct address_space *mapping, - struct file_ra_state *ra, - struct file *filp, - pgoff_t offset, - unsigned long size); -void handle_ra_miss(struct address_space *mapping, - struct file_ra_state *ra, pgoff_t offset); + +void page_cache_sync_readahead(struct address_space *mapping, + struct file_ra_state *ra, + struct file *filp, + pgoff_t offset, + unsigned long size); + +void page_cache_async_readahead(struct address_space *mapping, + struct file_ra_state *ra, + struct file *filp, + struct page *pg, + pgoff_t offset, + unsigned long size); + unsigned long max_sane_readahead(unsigned long nr); /* Do stack extension */ @@ -1130,6 +1164,8 @@ extern int expand_stack(struct vm_area_struct *vma, unsigned long address); #ifdef CONFIG_IA64 extern int expand_upwards(struct vm_area_struct *vma, unsigned long address); #endif +extern int expand_stack_downwards(struct vm_area_struct *vma, + unsigned long address); /* Look up the first VMA which satisfies addr < vm_end, NULL if none. */ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr); diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 04b1636a970b..da8eb8ad9e9b 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -24,6 +24,14 @@ #endif #define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1)) +/* + * PAGE_ALLOC_COSTLY_ORDER is the order at which allocations are deemed + * costly to service. That is between allocation orders which should + * coelesce naturally under reasonable reclaim pressure and those which + * will not. + */ +#define PAGE_ALLOC_COSTLY_ORDER 3 + struct free_area { struct list_head free_list; unsigned long nr_free; @@ -146,6 +154,7 @@ enum zone_type { */ ZONE_HIGHMEM, #endif + ZONE_MOVABLE, MAX_NR_ZONES }; @@ -167,6 +176,7 @@ enum zone_type { + defined(CONFIG_ZONE_DMA32) \ + 1 \ + defined(CONFIG_HIGHMEM) \ + + 1 \ ) #if __ZONE_COUNT < 2 #define ZONES_SHIFT 0 @@ -499,10 +509,22 @@ static inline int populated_zone(struct zone *zone) return (!!zone->present_pages); } +extern int movable_zone; + +static inline int zone_movable_is_highmem(void) +{ +#if defined(CONFIG_HIGHMEM) && defined(CONFIG_ARCH_POPULATES_NODE_MAP) + return movable_zone == ZONE_HIGHMEM; +#else + return 0; +#endif +} + static inline int is_highmem_idx(enum zone_type idx) { #ifdef CONFIG_HIGHMEM - return (idx == ZONE_HIGHMEM); + return (idx == ZONE_HIGHMEM || + (idx == ZONE_MOVABLE && zone_movable_is_highmem())); #else return 0; #endif @@ -522,7 +544,9 @@ static inline int is_normal_idx(enum zone_type idx) static inline int is_highmem(struct zone *zone) { #ifdef CONFIG_HIGHMEM - return zone == zone->zone_pgdat->node_zones + ZONE_HIGHMEM; + int zone_idx = zone - zone->zone_pgdat->node_zones; + return zone_idx == ZONE_HIGHMEM || + (zone_idx == ZONE_MOVABLE && zone_movable_is_highmem()); #else return 0; #endif diff --git a/include/linux/namei.h b/include/linux/namei.h index b7dd24917f0d..6c38efbd810f 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -69,8 +69,8 @@ extern int FASTCALL(__user_walk_fd(int dfd, const char __user *, unsigned, struc #define user_path_walk_link(name,nd) \ __user_walk_fd(AT_FDCWD, name, 0, nd) extern int FASTCALL(path_lookup(const char *, unsigned, struct nameidata *)); -extern int FASTCALL(path_walk(const char *, struct nameidata *)); -extern int FASTCALL(link_path_walk(const char *, struct nameidata *)); +extern int vfs_path_lookup(struct dentry *, struct vfsmount *, + const char *, unsigned int, struct nameidata *); extern void path_release(struct nameidata *); extern void path_release_on_umount(struct nameidata *); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index da7a13c97eb8..9820ca1e45e2 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1098,10 +1098,8 @@ extern int dev_mc_delete(struct net_device *dev, void *addr, int alen, int all extern int dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly); extern int dev_mc_sync(struct net_device *to, struct net_device *from); extern void dev_mc_unsync(struct net_device *to, struct net_device *from); -extern void dev_mc_discard(struct net_device *dev); extern int __dev_addr_delete(struct dev_addr_list **list, int *count, void *addr, int alen, int all); extern int __dev_addr_add(struct dev_addr_list **list, int *count, void *addr, int alen, int newonly); -extern void __dev_addr_discard(struct dev_addr_list **list); extern void dev_set_promiscuity(struct net_device *dev, int inc); extern void dev_set_allmulti(struct net_device *dev, int inc); extern void netdev_state_change(struct net_device *dev); diff --git a/include/linux/netfilter_ipv4/ipt_iprange.h b/include/linux/netfilter_ipv4/ipt_iprange.h index 34ab0fb736e2..a92fefc3c7ec 100644 --- a/include/linux/netfilter_ipv4/ipt_iprange.h +++ b/include/linux/netfilter_ipv4/ipt_iprange.h @@ -1,6 +1,8 @@ #ifndef _IPT_IPRANGE_H #define _IPT_IPRANGE_H +#include <linux/types.h> + #define IPRANGE_SRC 0x01 /* Match source IP address */ #define IPRANGE_DST 0x02 /* Match destination IP address */ #define IPRANGE_SRC_INV 0x10 /* Negate the condition */ diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h index 9f62d6182d32..5cd192469096 100644 --- a/include/linux/nfsd/export.h +++ b/include/linux/nfsd/export.h @@ -42,6 +42,9 @@ #define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */ #define NFSEXP_ALLFLAGS 0xFE3F +/* The flags that may vary depending on security flavor: */ +#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \ + | NFSEXP_ALLSQUASH) #ifdef __KERNEL__ @@ -64,6 +67,19 @@ struct nfsd4_fs_locations { int migrated; }; +/* + * We keep an array of pseudoflavors with the export, in order from most + * to least preferred. For the forseeable future, we don't expect more + * than the eight pseudoflavors null, unix, krb5, krb5i, krb5p, skpm3, + * spkm3i, and spkm3p (and using all 8 at once should be rare). + */ +#define MAX_SECINFO_LIST 8 + +struct exp_flavor_info { + u32 pseudoflavor; + u32 flags; +}; + struct svc_export { struct cache_head h; struct auth_domain * ex_client; @@ -76,6 +92,8 @@ struct svc_export { int ex_fsid; unsigned char * ex_uuid; /* 16 byte fsid */ struct nfsd4_fs_locations ex_fslocs; + int ex_nflavors; + struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST]; }; /* an "export key" (expkey) maps a filehandlefragement to an @@ -95,10 +113,11 @@ struct svc_expkey { #define EX_SECURE(exp) (!((exp)->ex_flags & NFSEXP_INSECURE_PORT)) #define EX_ISSYNC(exp) (!((exp)->ex_flags & NFSEXP_ASYNC)) -#define EX_RDONLY(exp) ((exp)->ex_flags & NFSEXP_READONLY) #define EX_NOHIDE(exp) ((exp)->ex_flags & NFSEXP_NOHIDE) #define EX_WGATHER(exp) ((exp)->ex_flags & NFSEXP_GATHERED_WRITES) +int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp); +__be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp); /* * Function declarations @@ -112,13 +131,19 @@ struct svc_export * exp_get_by_name(struct auth_domain *clp, struct vfsmount *mnt, struct dentry *dentry, struct cache_req *reqp); +struct svc_export * rqst_exp_get_by_name(struct svc_rqst *, + struct vfsmount *, + struct dentry *); struct svc_export * exp_parent(struct auth_domain *clp, struct vfsmount *mnt, struct dentry *dentry, struct cache_req *reqp); +struct svc_export * rqst_exp_parent(struct svc_rqst *, + struct vfsmount *mnt, + struct dentry *dentry); int exp_rootfh(struct auth_domain *, char *path, struct knfsd_fh *, int maxsize); -__be32 exp_pseudoroot(struct auth_domain *, struct svc_fh *fhp, struct cache_req *creq); +__be32 exp_pseudoroot(struct svc_rqst *, struct svc_fh *); __be32 nfserrno(int errno); extern struct cache_detail svc_export_cache; @@ -135,6 +160,7 @@ static inline void exp_get(struct svc_export *exp) extern struct svc_export * exp_find(struct auth_domain *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp); +struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *); #endif /* __KERNEL__ */ diff --git a/include/linux/nfsd/interface.h b/include/linux/nfsd/interface.h deleted file mode 100644 index af0979704afb..000000000000 --- a/include/linux/nfsd/interface.h +++ /dev/null @@ -1,13 +0,0 @@ -/* - * include/linux/nfsd/interface.h - * - * defines interface between nfsd and other bits of - * the kernel. Particularly filesystems (eventually). - * - * Copyright (C) 2000 Neil Brown <neilb@cse.unsw.edu.au> - */ - -#ifndef LINUX_NFSD_INTERFACE_H -#define LINUX_NFSD_INTERFACE_H - -#endif /* LINUX_NFSD_INTERFACE_H */ diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h index 72feac581aa3..e452256d3f72 100644 --- a/include/linux/nfsd/nfsd.h +++ b/include/linux/nfsd/nfsd.h @@ -22,7 +22,6 @@ #include <linux/nfsd/export.h> #include <linux/nfsd/auth.h> #include <linux/nfsd/stats.h> -#include <linux/nfsd/interface.h> /* * nfsd version */ @@ -72,6 +71,9 @@ int nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp, struct svc_export **expp); __be32 nfsd_lookup(struct svc_rqst *, struct svc_fh *, const char *, int, struct svc_fh *); +__be32 nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *, + const char *, int, + struct svc_export **, struct dentry **); __be32 nfsd_setattr(struct svc_rqst *, struct svc_fh *, struct iattr *, int, time_t); #ifdef CONFIG_NFSD_V4 @@ -120,7 +122,8 @@ __be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *, struct kstatfs *); int nfsd_notify_change(struct inode *, struct iattr *); -__be32 nfsd_permission(struct svc_export *, struct dentry *, int); +__be32 nfsd_permission(struct svc_rqst *, struct svc_export *, + struct dentry *, int); int nfsd_sync_dir(struct dentry *dp); #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) @@ -149,6 +152,7 @@ extern int nfsd_max_blksize; * NFSv4 State */ #ifdef CONFIG_NFSD_V4 +extern unsigned int max_delegations; void nfs4_state_init(void); int nfs4_state_start(void); void nfs4_state_shutdown(void); @@ -236,6 +240,7 @@ void nfsd_lockd_shutdown(void); #define nfserr_badname __constant_htonl(NFSERR_BADNAME) #define nfserr_cb_path_down __constant_htonl(NFSERR_CB_PATH_DOWN) #define nfserr_locked __constant_htonl(NFSERR_LOCKED) +#define nfserr_wrongsec __constant_htonl(NFSERR_WRONGSEC) #define nfserr_replay_me __constant_htonl(NFSERR_REPLAY_ME) /* error codes for internal use */ diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h index ab5c236bd9a7..db348f749376 100644 --- a/include/linux/nfsd/state.h +++ b/include/linux/nfsd/state.h @@ -67,7 +67,7 @@ struct nfs4_cb_recall { int cbr_trunc; stateid_t cbr_stateid; u32 cbr_fhlen; - u32 cbr_fhval[NFS4_FHSIZE]; + char cbr_fhval[NFS4_FHSIZE]; struct nfs4_delegation *cbr_dp; }; @@ -224,6 +224,7 @@ struct nfs4_file { struct inode *fi_inode; u32 fi_id; /* used with stateowner->so_id * for stateid_hashtbl hash */ + bool fi_had_conflict; }; /* diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h index 09799bcee0ac..1b653267133a 100644 --- a/include/linux/nfsd/xdr4.h +++ b/include/linux/nfsd/xdr4.h @@ -293,6 +293,12 @@ struct nfsd4_rename { struct nfsd4_change_info rn_tinfo; /* response */ }; +struct nfsd4_secinfo { + u32 si_namelen; /* request */ + char *si_name; /* request */ + struct svc_export *si_exp; /* response */ +}; + struct nfsd4_setattr { stateid_t sa_stateid; /* request */ u32 sa_bmval[2]; /* request */ @@ -365,6 +371,7 @@ struct nfsd4_op { struct nfsd4_remove remove; struct nfsd4_rename rename; clientid_t renew; + struct nfsd4_secinfo secinfo; struct nfsd4_setattr setattr; struct nfsd4_setclientid setclientid; struct nfsd4_setclientid_confirm setclientid_confirm; diff --git a/include/linux/notifier.h b/include/linux/notifier.h index 9431101bf876..be3f2bb6fcf3 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -196,6 +196,8 @@ extern int __srcu_notifier_call_chain(struct srcu_notifier_head *nh, #define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ #define CPU_LOCK_ACQUIRE 0x0008 /* Acquire all hotcpu locks */ #define CPU_LOCK_RELEASE 0x0009 /* Release all hotcpu locks */ +#define CPU_DYING 0x000A /* CPU (unsigned)v not running any task, + * not handling interrupts, soon dead */ /* Used for CPU hotplug events occuring while tasks are frozen due to a suspend * operation in progress @@ -208,6 +210,13 @@ extern int __srcu_notifier_call_chain(struct srcu_notifier_head *nh, #define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) #define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) #define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) +#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) + +/* Hibernation and suspend events */ +#define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ +#define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ +#define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */ +#define PM_POST_SUSPEND 0x0004 /* Suspend finished */ #endif /* __KERNEL__ */ #endif /* _LINUX_NOTIFIER_H */ diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index ae2d79f2107e..209d3a47f50f 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -90,8 +90,12 @@ #define PG_reclaim 17 /* To be reclaimed asap */ #define PG_buddy 19 /* Page is free, on buddy lists */ +/* PG_readahead is only used for file reads; PG_reclaim is only for writes */ +#define PG_readahead PG_reclaim /* Reminder to do async read-ahead */ + /* PG_owner_priv_1 users should have descriptive aliases */ #define PG_checked PG_owner_priv_1 /* Used by some filesystems */ +#define PG_pinned PG_owner_priv_1 /* Xen pinned pagetable */ #if (BITS_PER_LONG > 32) /* @@ -170,6 +174,10 @@ static inline void SetPageUptodate(struct page *page) #define SetPageChecked(page) set_bit(PG_checked, &(page)->flags) #define ClearPageChecked(page) clear_bit(PG_checked, &(page)->flags) +#define PagePinned(page) test_bit(PG_pinned, &(page)->flags) +#define SetPagePinned(page) set_bit(PG_pinned, &(page)->flags) +#define ClearPagePinned(page) clear_bit(PG_pinned, &(page)->flags) + #define PageReserved(page) test_bit(PG_reserved, &(page)->flags) #define SetPageReserved(page) set_bit(PG_reserved, &(page)->flags) #define ClearPageReserved(page) clear_bit(PG_reserved, &(page)->flags) @@ -181,37 +189,15 @@ static inline void SetPageUptodate(struct page *page) #define __SetPagePrivate(page) __set_bit(PG_private, &(page)->flags) #define __ClearPagePrivate(page) __clear_bit(PG_private, &(page)->flags) +/* + * Only test-and-set exist for PG_writeback. The unconditional operators are + * risky: they bypass page accounting. + */ #define PageWriteback(page) test_bit(PG_writeback, &(page)->flags) -#define SetPageWriteback(page) \ - do { \ - if (!test_and_set_bit(PG_writeback, \ - &(page)->flags)) \ - inc_zone_page_state(page, NR_WRITEBACK); \ - } while (0) -#define TestSetPageWriteback(page) \ - ({ \ - int ret; \ - ret = test_and_set_bit(PG_writeback, \ - &(page)->flags); \ - if (!ret) \ - inc_zone_page_state(page, NR_WRITEBACK); \ - ret; \ - }) -#define ClearPageWriteback(page) \ - do { \ - if (test_and_clear_bit(PG_writeback, \ - &(page)->flags)) \ - dec_zone_page_state(page, NR_WRITEBACK); \ - } while (0) -#define TestClearPageWriteback(page) \ - ({ \ - int ret; \ - ret = test_and_clear_bit(PG_writeback, \ - &(page)->flags); \ - if (ret) \ - dec_zone_page_state(page, NR_WRITEBACK); \ - ret; \ - }) +#define TestSetPageWriteback(page) test_and_set_bit(PG_writeback, \ + &(page)->flags) +#define TestClearPageWriteback(page) test_and_clear_bit(PG_writeback, \ + &(page)->flags) #define PageBuddy(page) test_bit(PG_buddy, &(page)->flags) #define __SetPageBuddy(page) __set_bit(PG_buddy, &(page)->flags) @@ -221,6 +207,10 @@ static inline void SetPageUptodate(struct page *page) #define SetPageMappedToDisk(page) set_bit(PG_mappedtodisk, &(page)->flags) #define ClearPageMappedToDisk(page) clear_bit(PG_mappedtodisk, &(page)->flags) +#define PageReadahead(page) test_bit(PG_readahead, &(page)->flags) +#define SetPageReadahead(page) set_bit(PG_readahead, &(page)->flags) +#define ClearPageReadahead(page) clear_bit(PG_readahead, &(page)->flags) + #define PageReclaim(page) test_bit(PG_reclaim, &(page)->flags) #define SetPageReclaim(page) set_bit(PG_reclaim, &(page)->flags) #define ClearPageReclaim(page) clear_bit(PG_reclaim, &(page)->flags) diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 2c7add169539..b15c6498fe67 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -495,6 +495,8 @@ #define PCI_VENDOR_ID_AMD 0x1022 #define PCI_DEVICE_ID_AMD_K8_NB 0x1100 +#define PCI_DEVICE_ID_AMD_K8_NB_ADDRMAP 0x1101 +#define PCI_DEVICE_ID_AMD_K8_NB_MEMCTL 0x1102 #define PCI_DEVICE_ID_AMD_K8_NB_MISC 0x1103 #define PCI_DEVICE_ID_AMD_LANCE 0x2000 #define PCI_DEVICE_ID_AMD_LANCE_HOME 0x2001 @@ -2209,6 +2211,7 @@ #define PCI_DEVICE_ID_INTEL_82915GM_IG 0x2592 #define PCI_DEVICE_ID_INTEL_82945G_HB 0x2770 #define PCI_DEVICE_ID_INTEL_82945G_IG 0x2772 +#define PCI_DEVICE_ID_INTEL_3000_HB 0x2778 #define PCI_DEVICE_ID_INTEL_82945GM_HB 0x27A0 #define PCI_DEVICE_ID_INTEL_82945GM_IG 0x27A2 #define PCI_DEVICE_ID_INTEL_ICH6_0 0x2640 diff --git a/include/linux/pm.h b/include/linux/pm.h index 273781c82e4d..ad3cc2eb0d34 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -101,6 +101,7 @@ struct pm_dev */ extern void (*pm_idle)(void); extern void (*pm_power_off)(void); +extern void (*pm_power_off_prepare)(void); typedef int __bitwise suspend_state_t; @@ -284,8 +285,6 @@ extern int device_prepare_suspend(pm_message_t state); #define device_may_wakeup(dev) \ (device_can_wakeup(dev) && (dev)->power.should_wakeup) -extern int dpm_runtime_suspend(struct device *, pm_message_t); -extern void dpm_runtime_resume(struct device *); extern void __suspend_report_result(const char *function, void *fn, int ret); #define suspend_report_result(fn, ret) \ @@ -317,15 +316,6 @@ static inline int device_suspend(pm_message_t state) #define device_set_wakeup_enable(dev,val) do{}while(0) #define device_may_wakeup(dev) (0) -static inline int dpm_runtime_suspend(struct device * dev, pm_message_t state) -{ - return 0; -} - -static inline void dpm_runtime_resume(struct device * dev) -{ -} - #define suspend_report_result(fn, ret) do { } while (0) static inline int call_platform_enable_wakeup(struct device *dev, int is_on) diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index eeb1976ef7bf..ae8146abd746 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -110,6 +110,8 @@ static inline void ptrace_unlink(struct task_struct *child) __ptrace_unlink(child); } +int generic_ptrace_peekdata(struct task_struct *tsk, long addr, long data); +int generic_ptrace_pokedata(struct task_struct *tsk, long addr, long data); #ifndef force_successful_syscall_return /* diff --git a/include/linux/raid/bitmap.h b/include/linux/raid/bitmap.h index dd5a05d03d4f..75e17a05540e 100644 --- a/include/linux/raid/bitmap.h +++ b/include/linux/raid/bitmap.h @@ -262,7 +262,7 @@ int bitmap_active(struct bitmap *bitmap); char *file_path(struct file *file, char *buf, int count); void bitmap_print_sb(struct bitmap *bitmap); -int bitmap_update_sb(struct bitmap *bitmap); +void bitmap_update_sb(struct bitmap *bitmap); int bitmap_setallbits(struct bitmap *bitmap); void bitmap_write_all(struct bitmap *bitmap); @@ -278,8 +278,8 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int d void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, int *blocks, int aborted); void bitmap_close_sync(struct bitmap *bitmap); -int bitmap_unplug(struct bitmap *bitmap); -int bitmap_daemon_work(struct bitmap *bitmap); +void bitmap_unplug(struct bitmap *bitmap); +void bitmap_daemon_work(struct bitmap *bitmap); #endif #endif diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h index de72c49747c8..28ac632b42dd 100644 --- a/include/linux/raid/md_k.h +++ b/include/linux/raid/md_k.h @@ -51,7 +51,7 @@ struct mdk_rdev_s sector_t size; /* Device size (in blocks) */ mddev_t *mddev; /* RAID array if running */ - unsigned long last_events; /* IO event timestamp */ + long last_events; /* IO event timestamp */ struct block_device *bdev; /* block device handle */ diff --git a/include/linux/reboot.h b/include/linux/reboot.h index 1dd1c707311f..85ea63f462af 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -67,6 +67,11 @@ extern void kernel_power_off(void); void ctrl_alt_del(void); +#define POWEROFF_CMD_PATH_LEN 256 +extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN]; + +extern int orderly_poweroff(bool force); + /* * Emergency restart, callable from an interrupt handler. */ diff --git a/include/linux/rtc/m48t59.h b/include/linux/rtc/m48t59.h new file mode 100644 index 000000000000..e8c7c21ceb1f --- /dev/null +++ b/include/linux/rtc/m48t59.h @@ -0,0 +1,57 @@ +/* + * include/linux/rtc/m48t59.h + * + * Definitions for the platform data of m48t59 RTC chip driver. + * + * Copyright (c) 2007 Wind River Systems, Inc. + * + * Mark Zhan <rongkai.zhan@windriver.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _LINUX_RTC_M48T59_H_ +#define _LINUX_RTC_M48T59_H_ + +/* + * M48T59 Register Offset + */ +#define M48T59_YEAR 0x1fff +#define M48T59_MONTH 0x1ffe +#define M48T59_MDAY 0x1ffd /* Day of Month */ +#define M48T59_WDAY 0x1ffc /* Day of Week */ +#define M48T59_WDAY_CB 0x20 /* Century Bit */ +#define M48T59_WDAY_CEB 0x10 /* Century Enable Bit */ +#define M48T59_HOUR 0x1ffb +#define M48T59_MIN 0x1ffa +#define M48T59_SEC 0x1ff9 +#define M48T59_CNTL 0x1ff8 +#define M48T59_CNTL_READ 0x40 +#define M48T59_CNTL_WRITE 0x80 +#define M48T59_WATCHDOG 0x1ff7 +#define M48T59_INTR 0x1ff6 +#define M48T59_INTR_AFE 0x80 /* Alarm Interrupt Enable */ +#define M48T59_INTR_ABE 0x20 +#define M48T59_ALARM_DATE 0x1ff5 +#define M48T59_ALARM_HOUR 0x1ff4 +#define M48T59_ALARM_MIN 0x1ff3 +#define M48T59_ALARM_SEC 0x1ff2 +#define M48T59_UNUSED 0x1ff1 +#define M48T59_FLAGS 0x1ff0 +#define M48T59_FLAGS_WDT 0x80 /* watchdog timer expired */ +#define M48T59_FLAGS_AF 0x40 /* alarm */ +#define M48T59_FLAGS_BF 0x10 /* low battery */ + +#define M48T59_NVRAM_SIZE 0x1ff0 + +struct m48t59_plat_data { + /* The method to access M48T59 registers, + * NOTE: The 'ofs' should be 0x00~0x1fff + */ + void (*write_byte)(struct device *dev, u32 ofs, u8 val); + unsigned char (*read_byte)(struct device *dev, u32 ofs); +}; + +#endif /* _LINUX_RTC_M48T59_H_ */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 731edaca8ffd..94f624aef017 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -345,6 +345,27 @@ typedef unsigned long mm_counter_t; (mm)->hiwater_vm = (mm)->total_vm; \ } while (0) +extern void set_dumpable(struct mm_struct *mm, int value); +extern int get_dumpable(struct mm_struct *mm); + +/* mm flags */ +/* dumpable bits */ +#define MMF_DUMPABLE 0 /* core dump is permitted */ +#define MMF_DUMP_SECURELY 1 /* core file is readable only by root */ +#define MMF_DUMPABLE_BITS 2 + +/* coredump filter bits */ +#define MMF_DUMP_ANON_PRIVATE 2 +#define MMF_DUMP_ANON_SHARED 3 +#define MMF_DUMP_MAPPED_PRIVATE 4 +#define MMF_DUMP_MAPPED_SHARED 5 +#define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS +#define MMF_DUMP_FILTER_BITS 4 +#define MMF_DUMP_FILTER_MASK \ + (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT) +#define MMF_DUMP_FILTER_DEFAULT \ + ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED)) + struct mm_struct { struct vm_area_struct * mmap; /* list of VMAs */ struct rb_root mm_rb; @@ -402,7 +423,7 @@ struct mm_struct { unsigned int token_priority; unsigned int last_interval; - unsigned char dumpable:2; + unsigned long flags; /* Must use atomic bitops to access the bits */ /* coredumping support */ int core_waiters; diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 706ee9a4c80c..8518fa2a6f89 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -60,6 +60,8 @@ void serial8250_unregister_port(int line); void serial8250_suspend_port(int line); void serial8250_resume_port(int line); +extern int early_serial_setup(struct uart_port *port); + extern int serial8250_find_port(struct uart_port *p); extern int serial8250_find_port_for_earlycon(void); extern int setup_early_serial8250_console(char *cmdline); diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 7f2c99d66e9d..773d8d8828ad 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -62,8 +62,9 @@ /* NEC v850. */ #define PORT_V850E_UART 40 -/* DZ */ -#define PORT_DZ 47 +/* DEC */ +#define PORT_DZ 46 +#define PORT_ZS 47 /* Parisc type numbers. */ #define PORT_MUX 48 @@ -142,6 +143,9 @@ /* Micrel KS8695 */ #define PORT_KS8695 76 +/* Broadcom SB1250, etc. SOC */ +#define PORT_SB1250_DUART 77 + #ifdef __KERNEL__ diff --git a/include/linux/slab.h b/include/linux/slab.h index 27402fea9b79..0e1d0daef6a2 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -31,6 +31,19 @@ #define SLAB_TRACE 0x00200000UL /* Trace allocations and frees */ /* + * ZERO_SIZE_PTR will be returned for zero sized kmalloc requests. + * + * Dereferencing ZERO_SIZE_PTR will lead to a distinct access fault. + * + * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can. + * Both make kfree a no-op. + */ +#define ZERO_SIZE_PTR ((void *)16) + +#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) < \ + (unsigned long)ZERO_SIZE_PTR) + +/* * struct kmem_cache related prototypes */ void __init kmem_cache_init(void); @@ -42,7 +55,6 @@ struct kmem_cache *kmem_cache_create(const char *, size_t, size_t, void (*)(void *, struct kmem_cache *, unsigned long)); void kmem_cache_destroy(struct kmem_cache *); int kmem_cache_shrink(struct kmem_cache *); -void *kmem_cache_zalloc(struct kmem_cache *, gfp_t); void kmem_cache_free(struct kmem_cache *, void *); unsigned int kmem_cache_size(struct kmem_cache *); const char *kmem_cache_name(struct kmem_cache *); @@ -78,11 +90,37 @@ int kmem_ptr_validate(struct kmem_cache *cachep, const void *ptr); /* * Common kmalloc functions provided by all allocators */ -void *__kzalloc(size_t, gfp_t); void * __must_check krealloc(const void *, size_t, gfp_t); void kfree(const void *); size_t ksize(const void *); +/* + * Allocator specific definitions. These are mainly used to establish optimized + * ways to convert kmalloc() calls to kmem_cache_alloc() invocations by + * selecting the appropriate general cache at compile time. + * + * Allocators must define at least: + * + * kmem_cache_alloc() + * __kmalloc() + * kmalloc() + * + * Those wishing to support NUMA must also define: + * + * kmem_cache_alloc_node() + * kmalloc_node() + * + * See each allocator definition file for additional comments and + * implementation notes. + */ +#ifdef CONFIG_SLUB +#include <linux/slub_def.h> +#elif defined(CONFIG_SLOB) +#include <linux/slob_def.h> +#else +#include <linux/slab_def.h> +#endif + /** * kcalloc - allocate memory for an array. The memory is set to zero. * @n: number of elements. @@ -138,37 +176,9 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags) { if (n != 0 && size > ULONG_MAX / n) return NULL; - return __kzalloc(n * size, flags); + return __kmalloc(n * size, flags | __GFP_ZERO); } -/* - * Allocator specific definitions. These are mainly used to establish optimized - * ways to convert kmalloc() calls to kmem_cache_alloc() invocations by - * selecting the appropriate general cache at compile time. - * - * Allocators must define at least: - * - * kmem_cache_alloc() - * __kmalloc() - * kmalloc() - * kzalloc() - * - * Those wishing to support NUMA must also define: - * - * kmem_cache_alloc_node() - * kmalloc_node() - * - * See each allocator definition file for additional comments and - * implementation notes. - */ -#ifdef CONFIG_SLUB -#include <linux/slub_def.h> -#elif defined(CONFIG_SLOB) -#include <linux/slob_def.h> -#else -#include <linux/slab_def.h> -#endif - #if !defined(CONFIG_NUMA) && !defined(CONFIG_SLOB) /** * kmalloc_node - allocate memory from a specific node @@ -242,5 +252,23 @@ extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, void *); #endif /* DEBUG_SLAB */ +/* + * Shortcuts + */ +static inline void *kmem_cache_zalloc(struct kmem_cache *k, gfp_t flags) +{ + return kmem_cache_alloc(k, flags | __GFP_ZERO); +} + +/** + * kzalloc - allocate memory. The memory is set to zero. + * @size: how many bytes of memory are required. + * @flags: the type of memory to allocate (see kmalloc). + */ +static inline void *kzalloc(size_t size, gfp_t flags) +{ + return kmalloc(size, flags | __GFP_ZERO); +} + #endif /* __KERNEL__ */ #endif /* _LINUX_SLAB_H */ diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h index 365d036c454a..32bdc2ffd715 100644 --- a/include/linux/slab_def.h +++ b/include/linux/slab_def.h @@ -32,6 +32,10 @@ static inline void *kmalloc(size_t size, gfp_t flags) { if (__builtin_constant_p(size)) { int i = 0; + + if (!size) + return ZERO_SIZE_PTR; + #define CACHE(x) \ if (size <= x) \ goto found; \ @@ -54,32 +58,6 @@ found: return __kmalloc(size, flags); } -static inline void *kzalloc(size_t size, gfp_t flags) -{ - if (__builtin_constant_p(size)) { - int i = 0; -#define CACHE(x) \ - if (size <= x) \ - goto found; \ - else \ - i++; -#include "kmalloc_sizes.h" -#undef CACHE - { - extern void __you_cannot_kzalloc_that_much(void); - __you_cannot_kzalloc_that_much(); - } -found: -#ifdef CONFIG_ZONE_DMA - if (flags & GFP_DMA) - return kmem_cache_zalloc(malloc_sizes[i].cs_dmacachep, - flags); -#endif - return kmem_cache_zalloc(malloc_sizes[i].cs_cachep, flags); - } - return __kzalloc(size, flags); -} - #ifdef CONFIG_NUMA extern void *__kmalloc_node(size_t size, gfp_t flags, int node); extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node); @@ -88,6 +66,10 @@ static inline void *kmalloc_node(size_t size, gfp_t flags, int node) { if (__builtin_constant_p(size)) { int i = 0; + + if (!size) + return ZERO_SIZE_PTR; + #define CACHE(x) \ if (size <= x) \ goto found; \ diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h index a2daf2d418a9..59a3fa476ab9 100644 --- a/include/linux/slob_def.h +++ b/include/linux/slob_def.h @@ -33,14 +33,4 @@ static inline void *__kmalloc(size_t size, gfp_t flags) return kmalloc(size, flags); } -/** - * kzalloc - allocate memory. The memory is set to zero. - * @size: how many bytes of memory are required. - * @flags: the type of memory to allocate (see kcalloc). - */ -static inline void *kzalloc(size_t size, gfp_t flags) -{ - return __kzalloc(size, flags); -} - #endif /* __LINUX_SLOB_DEF_H */ diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index a582f6771525..07f7e4cbcee3 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -16,7 +16,9 @@ struct kmem_cache_node { unsigned long nr_partial; atomic_long_t nr_slabs; struct list_head partial; +#ifdef CONFIG_SLUB_DEBUG struct list_head full; +#endif }; /* @@ -44,7 +46,9 @@ struct kmem_cache { int align; /* Alignment */ const char *name; /* Name (only for display!) */ struct list_head list; /* List of slab caches */ +#ifdef CONFIG_SLUB_DEBUG struct kobject kobj; /* For sysfs */ +#endif #ifdef CONFIG_NUMA int defrag_ratio; @@ -159,18 +163,6 @@ static inline struct kmem_cache *kmalloc_slab(size_t size) #define SLUB_DMA 0 #endif - -/* - * ZERO_SIZE_PTR will be returned for zero sized kmalloc requests. - * - * Dereferencing ZERO_SIZE_PTR will lead to a distinct access fault. - * - * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can. - * Both make kfree a no-op. - */ -#define ZERO_SIZE_PTR ((void *)16) - - void *kmem_cache_alloc(struct kmem_cache *, gfp_t); void *__kmalloc(size_t size, gfp_t flags); @@ -187,19 +179,6 @@ static inline void *kmalloc(size_t size, gfp_t flags) return __kmalloc(size, flags); } -static inline void *kzalloc(size_t size, gfp_t flags) -{ - if (__builtin_constant_p(size) && !(flags & SLUB_DMA)) { - struct kmem_cache *s = kmalloc_slab(size); - - if (!s) - return ZERO_SIZE_PTR; - - return kmem_cache_zalloc(s, flags); - } else - return __kzalloc(size, flags); -} - #ifdef CONFIG_NUMA void *__kmalloc_node(size_t size, gfp_t flags, int node); void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node); diff --git a/include/linux/smp.h b/include/linux/smp.h index 96ac21f8dd73..259a13c3bd98 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -99,11 +99,14 @@ static inline int up_smp_call_function(void) static inline void smp_send_reschedule(int cpu) { } #define num_booting_cpus() 1 #define smp_prepare_boot_cpu() do {} while (0) -static inline int smp_call_function_single(int cpuid, void (*func) (void *info), - void *info, int retry, int wait) -{ - return -EBUSY; -} +#define smp_call_function_single(cpuid, func, info, retry, wait) \ +({ \ + WARN_ON(cpuid != 0); \ + local_irq_disable(); \ + (func)(info); \ + local_irq_enable(); \ + 0; \ +}) #endif /* !SMP */ diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 1be5ea059477..302b81d1d117 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -76,6 +76,7 @@ struct spi_device { #define SPI_MODE_3 (SPI_CPOL|SPI_CPHA) #define SPI_CS_HIGH 0x04 /* chipselect active high? */ #define SPI_LSB_FIRST 0x08 /* per-word bits-on-wire */ +#define SPI_3WIRE 0x10 /* SI/SO signals shared */ u8 bits_per_word; int irq; void *controller_state; diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h index 9dbca629dcfb..b8db32cea1de 100644 --- a/include/linux/spi/spi_bitbang.h +++ b/include/linux/spi/spi_bitbang.h @@ -26,6 +26,7 @@ struct spi_bitbang { struct list_head queue; u8 busy; u8 use_dma; + u8 flags; /* extra spi->mode support */ struct spi_master *master; diff --git a/include/linux/spi/tle62x0.h b/include/linux/spi/tle62x0.h new file mode 100644 index 000000000000..60b59187e590 --- /dev/null +++ b/include/linux/spi/tle62x0.h @@ -0,0 +1,24 @@ +/* + * tle62x0.h - platform glue to Infineon TLE62x0 driver chips + * + * Copyright 2007 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +struct tle62x0_pdata { + unsigned int init_state; + unsigned int gpio_count; +}; diff --git a/include/linux/spinlock_types.h b/include/linux/spinlock_types.h index 210549ba4ef4..f6a3a951b79e 100644 --- a/include/linux/spinlock_types.h +++ b/include/linux/spinlock_types.h @@ -9,14 +9,14 @@ * Released under the General Public License (GPL). */ -#include <linux/lockdep.h> - #if defined(CONFIG_SMP) # include <asm/spinlock_types.h> #else # include <linux/spinlock_types_up.h> #endif +#include <linux/lockdep.h> + typedef struct { raw_spinlock_t raw_lock; #if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP) diff --git a/include/linux/spinlock_types_up.h b/include/linux/spinlock_types_up.h index 27644af20b7c..04135b0e198e 100644 --- a/include/linux/spinlock_types_up.h +++ b/include/linux/spinlock_types_up.h @@ -12,14 +12,10 @@ * Released under the General Public License (GPL). */ -#if defined(CONFIG_DEBUG_SPINLOCK) || \ - defined(CONFIG_DEBUG_LOCK_ALLOC) +#ifdef CONFIG_DEBUG_SPINLOCK typedef struct { volatile unsigned int slock; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif } raw_spinlock_t; #define __RAW_SPIN_LOCK_UNLOCKED { 1 } @@ -34,9 +30,6 @@ typedef struct { } raw_spinlock_t; typedef struct { /* no debug version on UP */ -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif } raw_rwlock_t; #define __RAW_RW_LOCK_UNLOCKED { } diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h index 1d2b084c0185..e7fa657d0c49 100644 --- a/include/linux/stacktrace.h +++ b/include/linux/stacktrace.h @@ -13,7 +13,7 @@ extern void save_stack_trace(struct stack_trace *trace); extern void print_stack_trace(struct stack_trace *trace, int spaces); #else # define save_stack_trace(trace) do { } while (0) -# define print_stack_trace(trace) do { } while (0) +# define print_stack_trace(trace, spaces) do { } while (0) #endif #endif diff --git a/include/linux/string.h b/include/linux/string.h index 7f2eb6a477f9..836062b7582a 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -105,8 +105,12 @@ extern void * memchr(const void *,int,__kernel_size_t); #endif extern char *kstrdup(const char *s, gfp_t gfp); +extern char *kstrndup(const char *s, size_t len, gfp_t gfp); extern void *kmemdup(const void *src, size_t len, gfp_t gfp); +extern char **argv_split(gfp_t gfp, const char *str, int *argcp); +extern void argv_free(char **argv); + #ifdef __cplusplus } #endif diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h index bbac101ac372..459c5fc11d51 100644 --- a/include/linux/sunrpc/gss_api.h +++ b/include/linux/sunrpc/gss_api.h @@ -58,6 +58,7 @@ u32 gss_unwrap( u32 gss_delete_sec_context( struct gss_ctx **ctx_id); +u32 gss_svc_to_pseudoflavor(struct gss_api_mech *, u32 service); u32 gss_pseudoflavor_to_service(struct gss_api_mech *, u32 pseudoflavor); char *gss_service_to_auth_domain_name(struct gss_api_mech *, u32 service); diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 129d50f2225c..8531a70da73d 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -212,6 +212,7 @@ struct svc_rqst { struct svc_pool * rq_pool; /* thread pool */ struct svc_procedure * rq_procinfo; /* procedure info */ struct auth_ops * rq_authop; /* authentication flavour */ + u32 rq_flavor; /* pseudoflavor */ struct svc_cred rq_cred; /* auth info */ struct sk_buff * rq_skbuff; /* fast recv inet buffer */ struct svc_deferred_req*rq_deferred; /* deferred request we are replaying */ @@ -248,6 +249,7 @@ struct svc_rqst { */ /* Catering to nfsd */ struct auth_domain * rq_client; /* RPC peer info */ + struct auth_domain * rq_gssclient; /* "gss/"-style peer info */ struct svc_cacherep * rq_cacherep; /* cache info */ struct knfsd_fh * rq_reffh; /* Referrence filehandle, used to * determine what device number diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h index de92619b0826..22e1ef8e200e 100644 --- a/include/linux/sunrpc/svcauth.h +++ b/include/linux/sunrpc/svcauth.h @@ -127,6 +127,7 @@ extern struct auth_domain *auth_unix_lookup(struct in_addr addr); extern int auth_unix_forget_old(struct auth_domain *dom); extern void svcauth_unix_purge(void); extern void svcauth_unix_info_release(void *); +extern int svcauth_unix_set_client(struct svc_rqst *rqstp); static inline unsigned long hash_str(char *name, int bits) { diff --git a/include/linux/sunrpc/svcauth_gss.h b/include/linux/sunrpc/svcauth_gss.h index 5a5db16ab660..417a1def56db 100644 --- a/include/linux/sunrpc/svcauth_gss.h +++ b/include/linux/sunrpc/svcauth_gss.h @@ -22,6 +22,7 @@ int gss_svc_init(void); void gss_svc_shutdown(void); int svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name); +u32 svcauth_gss_flavor(struct auth_domain *dom); #endif /* __KERNEL__ */ #endif /* _LINUX_SUNRPC_SVCAUTH_GSS_H */ diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 9c7cb6430666..e8e6da394c92 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -43,14 +43,19 @@ static inline void pm_restore_console(void) {} * @prepare: prepare system for hibernation * @enter: shut down system after state has been saved to disk * @finish: finish/clean up after state has been reloaded + * @pre_restore: prepare system for the restoration from a hibernation image + * @restore_cleanup: clean up after a failing image restoration */ struct hibernation_ops { int (*prepare)(void); int (*enter)(void); void (*finish)(void); + int (*pre_restore)(void); + void (*restore_cleanup)(void); }; -#if defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) +#ifdef CONFIG_PM +#ifdef CONFIG_SOFTWARE_SUSPEND /* kernel/power/snapshot.c */ extern void __register_nosave_region(unsigned long b, unsigned long e, int km); static inline void register_nosave_region(unsigned long b, unsigned long e) @@ -68,16 +73,14 @@ extern unsigned long get_safe_page(gfp_t gfp_mask); extern void hibernation_set_ops(struct hibernation_ops *ops); extern int hibernate(void); -#else -static inline void register_nosave_region(unsigned long b, unsigned long e) {} -static inline void register_nosave_region_late(unsigned long b, unsigned long e) {} +#else /* CONFIG_SOFTWARE_SUSPEND */ static inline int swsusp_page_is_forbidden(struct page *p) { return 0; } static inline void swsusp_set_page_free(struct page *p) {} static inline void swsusp_unset_page_free(struct page *p) {} static inline void hibernation_set_ops(struct hibernation_ops *ops) {} static inline int hibernate(void) { return -ENOSYS; } -#endif /* defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) */ +#endif /* CONFIG_SOFTWARE_SUSPEND */ void save_processor_state(void); void restore_processor_state(void); @@ -85,4 +88,43 @@ struct saved_context; void __save_processor_state(struct saved_context *ctxt); void __restore_processor_state(struct saved_context *ctxt); +/* kernel/power/main.c */ +extern struct blocking_notifier_head pm_chain_head; + +static inline int register_pm_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&pm_chain_head, nb); +} + +static inline int unregister_pm_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&pm_chain_head, nb); +} + +#define pm_notifier(fn, pri) { \ + static struct notifier_block fn##_nb = \ + { .notifier_call = fn, .priority = pri }; \ + register_pm_notifier(&fn##_nb); \ +} +#else /* CONFIG_PM */ + +static inline int register_pm_notifier(struct notifier_block *nb) +{ + return 0; +} + +static inline int unregister_pm_notifier(struct notifier_block *nb) +{ + return 0; +} + +#define pm_notifier(fn, pri) do { (void)(fn); } while (0) +#endif /* CONFIG_PM */ + +#if !defined CONFIG_SOFTWARE_SUSPEND || !defined(CONFIG_PM) +static inline void register_nosave_region(unsigned long b, unsigned long e) +{ +} +#endif + #endif /* _LINUX_SWSUSP_H */ diff --git a/include/linux/swap.h b/include/linux/swap.h index 006868881346..665f85f2a3af 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -188,7 +188,8 @@ extern int rotate_reclaimable_page(struct page *page); extern void swap_setup(void); /* linux/mm/vmscan.c */ -extern unsigned long try_to_free_pages(struct zone **, gfp_t); +extern unsigned long try_to_free_pages(struct zone **zones, int order, + gfp_t gfp_mask); extern unsigned long shrink_all_memory(unsigned long nr_pages); extern int vm_swappiness; extern int remove_mapping(struct address_space *mapping, struct page *page); diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 83d0ec11235e..7a8b1e3322e0 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -610,6 +610,7 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas asmlinkage long sys_timerfd(int ufd, int clockid, int flags, const struct itimerspec __user *utmr); asmlinkage long sys_eventfd(unsigned int count); +asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); int kernel_execve(const char *filename, char *const argv[], char *const envp[]); diff --git a/include/linux/time.h b/include/linux/time.h index 4bb05a829be9..ec3b0ced0afe 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -36,7 +36,8 @@ struct timezone { #define NSEC_PER_SEC 1000000000L #define FSEC_PER_SEC 1000000000000000L -static inline int timespec_equal(struct timespec *a, struct timespec *b) +static inline int timespec_equal(const struct timespec *a, + const struct timespec *b) { return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec); } diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h new file mode 100644 index 000000000000..44c28e94df50 --- /dev/null +++ b/include/linux/uio_driver.h @@ -0,0 +1,91 @@ +/* + * include/linux/uio_driver.h + * + * Copyright(C) 2005, Benedikt Spranger <b.spranger@linutronix.de> + * Copyright(C) 2005, Thomas Gleixner <tglx@linutronix.de> + * Copyright(C) 2006, Hans J. Koch <hjk@linutronix.de> + * Copyright(C) 2006, Greg Kroah-Hartman <greg@kroah.com> + * + * Userspace IO driver. + * + * Licensed under the GPLv2 only. + */ + +#ifndef _UIO_DRIVER_H_ +#define _UIO_DRIVER_H_ + +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/interrupt.h> + +/** + * struct uio_mem - description of a UIO memory region + * @kobj: kobject for this mapping + * @addr: address of the device's memory + * @size: size of IO + * @memtype: type of memory addr points to + * @internal_addr: ioremap-ped version of addr, for driver internal use + */ +struct uio_mem { + struct kobject kobj; + unsigned long addr; + unsigned long size; + int memtype; + void __iomem *internal_addr; +}; + +#define MAX_UIO_MAPS 5 + +struct uio_device; + +/** + * struct uio_info - UIO device capabilities + * @uio_dev: the UIO device this info belongs to + * @name: device name + * @version: device driver version + * @mem: list of mappable memory regions, size==0 for end of list + * @irq: interrupt number or UIO_IRQ_CUSTOM + * @irq_flags: flags for request_irq() + * @priv: optional private data + * @handler: the device's irq handler + * @mmap: mmap operation for this uio device + * @open: open operation for this uio device + * @release: release operation for this uio device + */ +struct uio_info { + struct uio_device *uio_dev; + char *name; + char *version; + struct uio_mem mem[MAX_UIO_MAPS]; + long irq; + unsigned long irq_flags; + void *priv; + irqreturn_t (*handler)(int irq, struct uio_info *dev_info); + int (*mmap)(struct uio_info *info, struct vm_area_struct *vma); + int (*open)(struct uio_info *info, struct inode *inode); + int (*release)(struct uio_info *info, struct inode *inode); +}; + +extern int __must_check + __uio_register_device(struct module *owner, + struct device *parent, + struct uio_info *info); +static inline int __must_check + uio_register_device(struct device *parent, struct uio_info *info) +{ + return __uio_register_device(THIS_MODULE, parent, info); +} +extern void uio_unregister_device(struct uio_info *info); +extern void uio_event_notify(struct uio_info *info); + +/* defines for uio_device->irq */ +#define UIO_IRQ_CUSTOM -1 +#define UIO_IRQ_NONE -2 + +/* defines for uio_device->memtype */ +#define UIO_MEM_NONE 0 +#define UIO_MEM_PHYS 1 +#define UIO_MEM_LOGICAL 2 +#define UIO_MEM_VIRTUAL 3 + +#endif /* _LINUX_UIO_DRIVER_H_ */ diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 132b260aef1e..c2b10cae5da5 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -70,6 +70,10 @@ extern int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages); extern void unmap_kernel_range(unsigned long addr, unsigned long size); +/* Allocate/destroy a 'vmalloc' VM area. */ +extern struct vm_struct *alloc_vm_area(size_t size); +extern void free_vm_area(struct vm_struct *area); + /* * Internals. Dont't use.. */ diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index d9325cf8a134..75370ec0923e 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -25,7 +25,7 @@ #define HIGHMEM_ZONE(xx) #endif -#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx) +#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx) , xx##_MOVABLE enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, FOR_ALL_ZONES(PGALLOC), @@ -170,7 +170,8 @@ static inline unsigned long node_page_state(int node, #ifdef CONFIG_HIGHMEM zone_page_state(&zones[ZONE_HIGHMEM], item) + #endif - zone_page_state(&zones[ZONE_NORMAL], item); + zone_page_state(&zones[ZONE_NORMAL], item) + + zone_page_state(&zones[ZONE_MOVABLE], item); } extern void zone_statistics(struct zonelist *, struct zone *); diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h index d961635d0e61..699b7e9864fa 100644 --- a/include/linux/vt_kern.h +++ b/include/linux/vt_kern.h @@ -75,6 +75,8 @@ int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc); int vt_waitactive(int vt); void change_console(struct vc_data *new_vc); void reset_vc(struct vc_data *vc); +extern int unbind_con_driver(const struct consw *csw, int first, int last, + int deflt); /* * vc_screen.c shares this temporary buffer with the console write code so that diff --git a/include/media/saa7146.h b/include/media/saa7146.h index d3f4f5a38214..67703249b245 100644 --- a/include/media/saa7146.h +++ b/include/media/saa7146.h @@ -114,7 +114,7 @@ struct saa7146_dev struct mutex lock; unsigned char __iomem *mem; /* pointer to mapped IO memory */ - int revision; /* chip revision; needed for bug-workarounds*/ + u32 revision; /* chip revision; needed for bug-workarounds*/ /* pci-device & irq stuff*/ char name[32]; @@ -157,8 +157,8 @@ struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc); int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt); void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt); int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt, struct scatterlist *list, int length ); -char *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt); -void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, char *mem, struct saa7146_pgtable *pt); +void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt); +void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt); void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data); int saa7146_wait_for_debi_done(struct saa7146_dev *dev, int nobusyloop); diff --git a/include/media/tuner.h b/include/media/tuner.h index 6dcf3c45707d..160381c72e4b 100644 --- a/include/media/tuner.h +++ b/include/media/tuner.h @@ -23,8 +23,6 @@ #define _TUNER_H #include <linux/videodev2.h> -#include <linux/i2c.h> -#include <media/tuner-types.h> extern int tuner_debug; @@ -124,6 +122,7 @@ extern int tuner_debug; #define TUNER_THOMSON_FE6600 72 /* DViCO FusionHDTV DVB-T Hybrid */ #define TUNER_SAMSUNG_TCPG_6121P30A 73 /* Hauppauge PVR-500 PAL */ #define TUNER_TDA9887 74 /* This tuner should be used only internally */ +#define TUNER_TEA5761 75 /* Only FM Radio Tuner */ /* tv card specific */ #define TDA9887_PRESENT (1<<0) @@ -182,74 +181,6 @@ struct tuner_setup { int (*tuner_callback) (void *dev, int command,int arg); }; -struct tuner { - /* device */ - struct i2c_client i2c; - - unsigned int type; /* chip type */ - - unsigned int mode; - unsigned int mode_mask; /* Combination of allowable modes */ - - unsigned int tv_freq; /* keep track of the current settings */ - unsigned int radio_freq; - u16 last_div; - unsigned int audmode; - v4l2_std_id std; - - int using_v4l2; - - /* used by tda9887 */ - unsigned int tda9887_config; - unsigned char tda9887_data[4]; - - /* used by MT2032 */ - unsigned int xogc; - unsigned int radio_if2; - - /* used by tda8290 */ - unsigned char tda8290_easy_mode; - unsigned char tda827x_lpsel; - unsigned char tda827x_addr; - unsigned char tda827x_ver; - unsigned int sgIF; - - unsigned int config; - int (*tuner_callback) (void *dev, int command,int arg); - - /* function ptrs */ - void (*set_tv_freq)(struct i2c_client *c, unsigned int freq); - void (*set_radio_freq)(struct i2c_client *c, unsigned int freq); - int (*has_signal)(struct i2c_client *c); - int (*is_stereo)(struct i2c_client *c); - int (*get_afc)(struct i2c_client *c); - void (*tuner_status)(struct i2c_client *c); - void (*standby)(struct i2c_client *c); -}; - -extern unsigned const int tuner_count; - -extern int microtune_init(struct i2c_client *c); -extern int xc3028_init(struct i2c_client *c); -extern int tda8290_init(struct i2c_client *c); -extern int tda8290_probe(struct i2c_client *c); -extern int tea5767_tuner_init(struct i2c_client *c); -extern int default_tuner_init(struct i2c_client *c); -extern int tea5767_autodetection(struct i2c_client *c); -extern int tda9887_tuner_init(struct i2c_client *c); - -#define tuner_warn(fmt, arg...) do {\ - printk(KERN_WARNING "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \ - i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) -#define tuner_info(fmt, arg...) do {\ - printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \ - i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) -#define tuner_dbg(fmt, arg...) do {\ - extern int tuner_debug; \ - if (tuner_debug) \ - printk(KERN_DEBUG "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \ - i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0) - #endif /* __KERNEL__ */ #endif /* _TUNER_H */ diff --git a/include/mtd/ubi-header.h b/include/mtd/ubi-header.h index fa479c71aa34..74efa7763479 100644 --- a/include/mtd/ubi-header.h +++ b/include/mtd/ubi-header.h @@ -74,42 +74,13 @@ enum { UBI_COMPAT_REJECT = 5 }; -/* - * ubi16_t/ubi32_t/ubi64_t - 16, 32, and 64-bit integers used in UBI on-flash - * data structures. - */ -typedef struct { - uint16_t int16; -} __attribute__ ((packed)) ubi16_t; - -typedef struct { - uint32_t int32; -} __attribute__ ((packed)) ubi32_t; - -typedef struct { - uint64_t int64; -} __attribute__ ((packed)) ubi64_t; - -/* - * In this implementation of UBI uses the big-endian format for on-flash - * integers. The below are the corresponding conversion macros. - */ -#define cpu_to_ubi16(x) ((ubi16_t){__cpu_to_be16(x)}) -#define ubi16_to_cpu(x) ((uint16_t)__be16_to_cpu((x).int16)) - -#define cpu_to_ubi32(x) ((ubi32_t){__cpu_to_be32(x)}) -#define ubi32_to_cpu(x) ((uint32_t)__be32_to_cpu((x).int32)) - -#define cpu_to_ubi64(x) ((ubi64_t){__cpu_to_be64(x)}) -#define ubi64_to_cpu(x) ((uint64_t)__be64_to_cpu((x).int64)) - /* Sizes of UBI headers */ #define UBI_EC_HDR_SIZE sizeof(struct ubi_ec_hdr) #define UBI_VID_HDR_SIZE sizeof(struct ubi_vid_hdr) /* Sizes of UBI headers without the ending CRC */ -#define UBI_EC_HDR_SIZE_CRC (UBI_EC_HDR_SIZE - sizeof(ubi32_t)) -#define UBI_VID_HDR_SIZE_CRC (UBI_VID_HDR_SIZE - sizeof(ubi32_t)) +#define UBI_EC_HDR_SIZE_CRC (UBI_EC_HDR_SIZE - sizeof(__be32)) +#define UBI_VID_HDR_SIZE_CRC (UBI_VID_HDR_SIZE - sizeof(__be32)) /** * struct ubi_ec_hdr - UBI erase counter header. @@ -137,14 +108,14 @@ typedef struct { * eraseblocks. */ struct ubi_ec_hdr { - ubi32_t magic; - uint8_t version; - uint8_t padding1[3]; - ubi64_t ec; /* Warning: the current limit is 31-bit anyway! */ - ubi32_t vid_hdr_offset; - ubi32_t data_offset; - uint8_t padding2[36]; - ubi32_t hdr_crc; + __be32 magic; + __u8 version; + __u8 padding1[3]; + __be64 ec; /* Warning: the current limit is 31-bit anyway! */ + __be32 vid_hdr_offset; + __be32 data_offset; + __u8 padding2[36]; + __be32 hdr_crc; } __attribute__ ((packed)); /** @@ -262,22 +233,22 @@ struct ubi_ec_hdr { * software (say, cramfs) on top of the UBI volume. */ struct ubi_vid_hdr { - ubi32_t magic; - uint8_t version; - uint8_t vol_type; - uint8_t copy_flag; - uint8_t compat; - ubi32_t vol_id; - ubi32_t lnum; - ubi32_t leb_ver; /* obsolete, to be removed, don't use */ - ubi32_t data_size; - ubi32_t used_ebs; - ubi32_t data_pad; - ubi32_t data_crc; - uint8_t padding1[4]; - ubi64_t sqnum; - uint8_t padding2[12]; - ubi32_t hdr_crc; + __be32 magic; + __u8 version; + __u8 vol_type; + __u8 copy_flag; + __u8 compat; + __be32 vol_id; + __be32 lnum; + __be32 leb_ver; /* obsolete, to be removed, don't use */ + __be32 data_size; + __be32 used_ebs; + __be32 data_pad; + __be32 data_crc; + __u8 padding1[4]; + __be64 sqnum; + __u8 padding2[12]; + __be32 hdr_crc; } __attribute__ ((packed)); /* Internal UBI volumes count */ @@ -306,7 +277,7 @@ struct ubi_vid_hdr { #define UBI_VTBL_RECORD_SIZE sizeof(struct ubi_vtbl_record) /* Size of the volume table record without the ending CRC */ -#define UBI_VTBL_RECORD_SIZE_CRC (UBI_VTBL_RECORD_SIZE - sizeof(ubi32_t)) +#define UBI_VTBL_RECORD_SIZE_CRC (UBI_VTBL_RECORD_SIZE - sizeof(__be32)) /** * struct ubi_vtbl_record - a record in the volume table. @@ -346,15 +317,15 @@ struct ubi_vid_hdr { * Empty records contain all zeroes and the CRC checksum of those zeroes. */ struct ubi_vtbl_record { - ubi32_t reserved_pebs; - ubi32_t alignment; - ubi32_t data_pad; - uint8_t vol_type; - uint8_t upd_marker; - ubi16_t name_len; - uint8_t name[UBI_VOL_NAME_MAX+1]; - uint8_t padding2[24]; - ubi32_t crc; + __be32 reserved_pebs; + __be32 alignment; + __be32 data_pad; + __u8 vol_type; + __u8 upd_marker; + __be16 name_len; + __u8 name[UBI_VOL_NAME_MAX+1]; + __u8 padding2[24]; + __be32 crc; } __attribute__ ((packed)); #endif /* !__UBI_HEADER_H__ */ diff --git a/include/net/scm.h b/include/net/scm.h index 5637d5e22d5f..423cb1d5ac25 100644 --- a/include/net/scm.h +++ b/include/net/scm.h @@ -8,7 +8,7 @@ /* Well, we should have at least one descriptor open * to accept passed FDs 8) */ -#define SCM_MAX_FD (OPEN_MAX-1) +#define SCM_MAX_FD 255 struct scm_fp_list { diff --git a/include/net/tcp.h b/include/net/tcp.h index a8af9ae00177..8b404b1ef7c8 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -652,8 +652,7 @@ struct tcp_congestion_ops { /* lower bound for congestion window (optional) */ u32 (*min_cwnd)(const struct sock *sk); /* do new cwnd calculation (required) */ - void (*cong_avoid)(struct sock *sk, u32 ack, - u32 rtt, u32 in_flight, int good_ack); + void (*cong_avoid)(struct sock *sk, u32 ack, u32 in_flight, int good_ack); /* call before changing ca_state (optional) */ void (*set_state)(struct sock *sk, u8 new_state); /* call when cwnd event occurs (optional) */ @@ -684,8 +683,7 @@ extern void tcp_slow_start(struct tcp_sock *tp); extern struct tcp_congestion_ops tcp_init_congestion_ops; extern u32 tcp_reno_ssthresh(struct sock *sk); -extern void tcp_reno_cong_avoid(struct sock *sk, u32 ack, - u32 rtt, u32 in_flight, int flag); +extern void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int flag); extern u32 tcp_reno_min_cwnd(const struct sock *sk); extern struct tcp_congestion_ops tcp_reno; diff --git a/include/net/xfrm.h b/include/net/xfrm.h index ae959e950174..a5f80bfbaaa4 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -585,7 +585,6 @@ static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ct struct xfrm_dst { union { - struct xfrm_dst *next; struct dst_entry dst; struct rtable rt; struct rt6_info rt6; diff --git a/include/video/tgafb.h b/include/video/tgafb.h index 03d0dbe293a8..7bc5e2c14826 100644 --- a/include/video/tgafb.h +++ b/include/video/tgafb.h @@ -216,6 +216,7 @@ struct tga_par { u32 pll_freq; /* pixclock in mhz */ u32 bits_per_pixel; /* bits per pixel */ u32 sync_on_green; /* set if sync is on green */ + u32 palette[16]; }; diff --git a/include/xen/events.h b/include/xen/events.h new file mode 100644 index 000000000000..2bde54d29be5 --- /dev/null +++ b/include/xen/events.h @@ -0,0 +1,48 @@ +#ifndef _XEN_EVENTS_H +#define _XEN_EVENTS_H + +#include <linux/interrupt.h> + +#include <xen/interface/event_channel.h> +#include <asm/xen/hypercall.h> + +enum ipi_vector { + XEN_RESCHEDULE_VECTOR, + XEN_CALL_FUNCTION_VECTOR, + + XEN_NR_IPIS, +}; + +int bind_evtchn_to_irq(unsigned int evtchn); +int bind_evtchn_to_irqhandler(unsigned int evtchn, + irq_handler_t handler, + unsigned long irqflags, const char *devname, + void *dev_id); +int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu, + irq_handler_t handler, + unsigned long irqflags, const char *devname, + void *dev_id); +int bind_ipi_to_irqhandler(enum ipi_vector ipi, + unsigned int cpu, + irq_handler_t handler, + unsigned long irqflags, + const char *devname, + void *dev_id); + +/* + * Common unbind function for all event sources. Takes IRQ to unbind from. + * Automatically closes the underlying event channel (even for bindings + * made with bind_evtchn_to_irqhandler()). + */ +void unbind_from_irqhandler(unsigned int irq, void *dev_id); + +void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector); + +static inline void notify_remote_via_evtchn(int port) +{ + struct evtchn_send send = { .port = port }; + (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send); +} + +extern void notify_remote_via_irq(int irq); +#endif /* _XEN_EVENTS_H */ diff --git a/include/xen/features.h b/include/xen/features.h new file mode 100644 index 000000000000..27292d4d2a6a --- /dev/null +++ b/include/xen/features.h @@ -0,0 +1,23 @@ +/****************************************************************************** + * features.h + * + * Query the features reported by Xen. + * + * Copyright (c) 2006, Ian Campbell + */ + +#ifndef __XEN_FEATURES_H__ +#define __XEN_FEATURES_H__ + +#include <xen/interface/features.h> + +void xen_setup_features(void); + +extern u8 xen_features[XENFEAT_NR_SUBMAPS * 32]; + +static inline int xen_feature(int flag) +{ + return xen_features[flag]; +} + +#endif /* __ASM_XEN_FEATURES_H__ */ diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h new file mode 100644 index 000000000000..761c83498e03 --- /dev/null +++ b/include/xen/grant_table.h @@ -0,0 +1,107 @@ +/****************************************************************************** + * grant_table.h + * + * Two sets of functionality: + * 1. Granting foreign access to our memory reservation. + * 2. Accessing others' memory reservations via grant references. + * (i.e., mechanisms for both sender and recipient of grant references) + * + * Copyright (c) 2004-2005, K A Fraser + * Copyright (c) 2005, Christopher Clark + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef __ASM_GNTTAB_H__ +#define __ASM_GNTTAB_H__ + +#include <asm/xen/hypervisor.h> +#include <xen/interface/grant_table.h> + +/* NR_GRANT_FRAMES must be less than or equal to that configured in Xen */ +#define NR_GRANT_FRAMES 4 + +struct gnttab_free_callback { + struct gnttab_free_callback *next; + void (*fn)(void *); + void *arg; + u16 count; +}; + +int gnttab_grant_foreign_access(domid_t domid, unsigned long frame, + int readonly); + +/* + * End access through the given grant reference, iff the grant entry is no + * longer in use. Return 1 if the grant entry was freed, 0 if it is still in + * use. + */ +int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly); + +/* + * Eventually end access through the given grant reference, and once that + * access has been ended, free the given page too. Access will be ended + * immediately iff the grant entry is not in use, otherwise it will happen + * some time later. page may be 0, in which case no freeing will occur. + */ +void gnttab_end_foreign_access(grant_ref_t ref, int readonly, + unsigned long page); + +int gnttab_grant_foreign_transfer(domid_t domid, unsigned long pfn); + +unsigned long gnttab_end_foreign_transfer_ref(grant_ref_t ref); +unsigned long gnttab_end_foreign_transfer(grant_ref_t ref); + +int gnttab_query_foreign_access(grant_ref_t ref); + +/* + * operations on reserved batches of grant references + */ +int gnttab_alloc_grant_references(u16 count, grant_ref_t *pprivate_head); + +void gnttab_free_grant_reference(grant_ref_t ref); + +void gnttab_free_grant_references(grant_ref_t head); + +int gnttab_empty_grant_references(const grant_ref_t *pprivate_head); + +int gnttab_claim_grant_reference(grant_ref_t *pprivate_head); + +void gnttab_release_grant_reference(grant_ref_t *private_head, + grant_ref_t release); + +void gnttab_request_free_callback(struct gnttab_free_callback *callback, + void (*fn)(void *), void *arg, u16 count); +void gnttab_cancel_free_callback(struct gnttab_free_callback *callback); + +void gnttab_grant_foreign_access_ref(grant_ref_t ref, domid_t domid, + unsigned long frame, int readonly); + +void gnttab_grant_foreign_transfer_ref(grant_ref_t, domid_t domid, + unsigned long pfn); + +#define gnttab_map_vaddr(map) ((void *)(map.host_virt_addr)) + +#endif /* __ASM_GNTTAB_H__ */ diff --git a/include/xen/hvc-console.h b/include/xen/hvc-console.h new file mode 100644 index 000000000000..21c0ecfd786d --- /dev/null +++ b/include/xen/hvc-console.h @@ -0,0 +1,6 @@ +#ifndef XEN_HVC_CONSOLE_H +#define XEN_HVC_CONSOLE_H + +extern struct console xenboot_console; + +#endif /* XEN_HVC_CONSOLE_H */ diff --git a/include/xen/interface/elfnote.h b/include/xen/interface/elfnote.h new file mode 100644 index 000000000000..a64d3df5bd95 --- /dev/null +++ b/include/xen/interface/elfnote.h @@ -0,0 +1,133 @@ +/****************************************************************************** + * elfnote.h + * + * Definitions used for the Xen ELF notes. + * + * Copyright (c) 2006, Ian Campbell, XenSource Ltd. + */ + +#ifndef __XEN_PUBLIC_ELFNOTE_H__ +#define __XEN_PUBLIC_ELFNOTE_H__ + +/* + * The notes should live in a SHT_NOTE segment and have "Xen" in the + * name field. + * + * Numeric types are either 4 or 8 bytes depending on the content of + * the desc field. + * + * LEGACY indicated the fields in the legacy __xen_guest string which + * this a note type replaces. + */ + +/* + * NAME=VALUE pair (string). + * + * LEGACY: FEATURES and PAE + */ +#define XEN_ELFNOTE_INFO 0 + +/* + * The virtual address of the entry point (numeric). + * + * LEGACY: VIRT_ENTRY + */ +#define XEN_ELFNOTE_ENTRY 1 + +/* The virtual address of the hypercall transfer page (numeric). + * + * LEGACY: HYPERCALL_PAGE. (n.b. legacy value is a physical page + * number not a virtual address) + */ +#define XEN_ELFNOTE_HYPERCALL_PAGE 2 + +/* The virtual address where the kernel image should be mapped (numeric). + * + * Defaults to 0. + * + * LEGACY: VIRT_BASE + */ +#define XEN_ELFNOTE_VIRT_BASE 3 + +/* + * The offset of the ELF paddr field from the acutal required + * psuedo-physical address (numeric). + * + * This is used to maintain backwards compatibility with older kernels + * which wrote __PAGE_OFFSET into that field. This field defaults to 0 + * if not present. + * + * LEGACY: ELF_PADDR_OFFSET. (n.b. legacy default is VIRT_BASE) + */ +#define XEN_ELFNOTE_PADDR_OFFSET 4 + +/* + * The version of Xen that we work with (string). + * + * LEGACY: XEN_VER + */ +#define XEN_ELFNOTE_XEN_VERSION 5 + +/* + * The name of the guest operating system (string). + * + * LEGACY: GUEST_OS + */ +#define XEN_ELFNOTE_GUEST_OS 6 + +/* + * The version of the guest operating system (string). + * + * LEGACY: GUEST_VER + */ +#define XEN_ELFNOTE_GUEST_VERSION 7 + +/* + * The loader type (string). + * + * LEGACY: LOADER + */ +#define XEN_ELFNOTE_LOADER 8 + +/* + * The kernel supports PAE (x86/32 only, string = "yes" or "no"). + * + * LEGACY: PAE (n.b. The legacy interface included a provision to + * indicate 'extended-cr3' support allowing L3 page tables to be + * placed above 4G. It is assumed that any kernel new enough to use + * these ELF notes will include this and therefore "yes" here is + * equivalent to "yes[entended-cr3]" in the __xen_guest interface. + */ +#define XEN_ELFNOTE_PAE_MODE 9 + +/* + * The features supported/required by this kernel (string). + * + * The string must consist of a list of feature names (as given in + * features.h, without the "XENFEAT_" prefix) separated by '|' + * characters. If a feature is required for the kernel to function + * then the feature name must be preceded by a '!' character. + * + * LEGACY: FEATURES + */ +#define XEN_ELFNOTE_FEATURES 10 + +/* + * The kernel requires the symbol table to be loaded (string = "yes" or "no") + * LEGACY: BSD_SYMTAB (n.b. The legacy treated the presence or absence + * of this string as a boolean flag rather than requiring "yes" or + * "no". + */ +#define XEN_ELFNOTE_BSD_SYMTAB 11 + +#endif /* __XEN_PUBLIC_ELFNOTE_H__ */ + +/* + * Local variables: + * mode: C + * c-set-style: "BSD" + * c-basic-offset: 4 + * tab-width: 4 + * indent-tabs-mode: nil + * End: + */ diff --git a/include/xen/interface/event_channel.h b/include/xen/interface/event_channel.h new file mode 100644 index 000000000000..919b5bdcb2bd --- /dev/null +++ b/include/xen/interface/event_channel.h @@ -0,0 +1,195 @@ +/****************************************************************************** + * event_channel.h + * + * Event channels between domains. + * + * Copyright (c) 2003-2004, K A Fraser. + */ + +#ifndef __XEN_PUBLIC_EVENT_CHANNEL_H__ +#define __XEN_PUBLIC_EVENT_CHANNEL_H__ + +typedef uint32_t evtchn_port_t; +DEFINE_GUEST_HANDLE(evtchn_port_t); + +/* + * EVTCHNOP_alloc_unbound: Allocate a port in domain <dom> and mark as + * accepting interdomain bindings from domain <remote_dom>. A fresh port + * is allocated in <dom> and returned as <port>. + * NOTES: + * 1. If the caller is unprivileged then <dom> must be DOMID_SELF. + * 2. <rdom> may be DOMID_SELF, allowing loopback connections. + */ +#define EVTCHNOP_alloc_unbound 6 +struct evtchn_alloc_unbound { + /* IN parameters */ + domid_t dom, remote_dom; + /* OUT parameters */ + evtchn_port_t port; +}; + +/* + * EVTCHNOP_bind_interdomain: Construct an interdomain event channel between + * the calling domain and <remote_dom>. <remote_dom,remote_port> must identify + * a port that is unbound and marked as accepting bindings from the calling + * domain. A fresh port is allocated in the calling domain and returned as + * <local_port>. + * NOTES: + * 2. <remote_dom> may be DOMID_SELF, allowing loopback connections. + */ +#define EVTCHNOP_bind_interdomain 0 +struct evtchn_bind_interdomain { + /* IN parameters. */ + domid_t remote_dom; + evtchn_port_t remote_port; + /* OUT parameters. */ + evtchn_port_t local_port; +}; + +/* + * EVTCHNOP_bind_virq: Bind a local event channel to VIRQ <irq> on specified + * vcpu. + * NOTES: + * 1. A virtual IRQ may be bound to at most one event channel per vcpu. + * 2. The allocated event channel is bound to the specified vcpu. The binding + * may not be changed. + */ +#define EVTCHNOP_bind_virq 1 +struct evtchn_bind_virq { + /* IN parameters. */ + uint32_t virq; + uint32_t vcpu; + /* OUT parameters. */ + evtchn_port_t port; +}; + +/* + * EVTCHNOP_bind_pirq: Bind a local event channel to PIRQ <irq>. + * NOTES: + * 1. A physical IRQ may be bound to at most one event channel per domain. + * 2. Only a sufficiently-privileged domain may bind to a physical IRQ. + */ +#define EVTCHNOP_bind_pirq 2 +struct evtchn_bind_pirq { + /* IN parameters. */ + uint32_t pirq; +#define BIND_PIRQ__WILL_SHARE 1 + uint32_t flags; /* BIND_PIRQ__* */ + /* OUT parameters. */ + evtchn_port_t port; +}; + +/* + * EVTCHNOP_bind_ipi: Bind a local event channel to receive events. + * NOTES: + * 1. The allocated event channel is bound to the specified vcpu. The binding + * may not be changed. + */ +#define EVTCHNOP_bind_ipi 7 +struct evtchn_bind_ipi { + uint32_t vcpu; + /* OUT parameters. */ + evtchn_port_t port; +}; + +/* + * EVTCHNOP_close: Close a local event channel <port>. If the channel is + * interdomain then the remote end is placed in the unbound state + * (EVTCHNSTAT_unbound), awaiting a new connection. + */ +#define EVTCHNOP_close 3 +struct evtchn_close { + /* IN parameters. */ + evtchn_port_t port; +}; + +/* + * EVTCHNOP_send: Send an event to the remote end of the channel whose local + * endpoint is <port>. + */ +#define EVTCHNOP_send 4 +struct evtchn_send { + /* IN parameters. */ + evtchn_port_t port; +}; + +/* + * EVTCHNOP_status: Get the current status of the communication channel which + * has an endpoint at <dom, port>. + * NOTES: + * 1. <dom> may be specified as DOMID_SELF. + * 2. Only a sufficiently-privileged domain may obtain the status of an event + * channel for which <dom> is not DOMID_SELF. + */ +#define EVTCHNOP_status 5 +struct evtchn_status { + /* IN parameters */ + domid_t dom; + evtchn_port_t port; + /* OUT parameters */ +#define EVTCHNSTAT_closed 0 /* Channel is not in use. */ +#define EVTCHNSTAT_unbound 1 /* Channel is waiting interdom connection.*/ +#define EVTCHNSTAT_interdomain 2 /* Channel is connected to remote domain. */ +#define EVTCHNSTAT_pirq 3 /* Channel is bound to a phys IRQ line. */ +#define EVTCHNSTAT_virq 4 /* Channel is bound to a virtual IRQ line */ +#define EVTCHNSTAT_ipi 5 /* Channel is bound to a virtual IPI line */ + uint32_t status; + uint32_t vcpu; /* VCPU to which this channel is bound. */ + union { + struct { + domid_t dom; + } unbound; /* EVTCHNSTAT_unbound */ + struct { + domid_t dom; + evtchn_port_t port; + } interdomain; /* EVTCHNSTAT_interdomain */ + uint32_t pirq; /* EVTCHNSTAT_pirq */ + uint32_t virq; /* EVTCHNSTAT_virq */ + } u; +}; + +/* + * EVTCHNOP_bind_vcpu: Specify which vcpu a channel should notify when an + * event is pending. + * NOTES: + * 1. IPI- and VIRQ-bound channels always notify the vcpu that initialised + * the binding. This binding cannot be changed. + * 2. All other channels notify vcpu0 by default. This default is set when + * the channel is allocated (a port that is freed and subsequently reused + * has its binding reset to vcpu0). + */ +#define EVTCHNOP_bind_vcpu 8 +struct evtchn_bind_vcpu { + /* IN parameters. */ + evtchn_port_t port; + uint32_t vcpu; +}; + +/* + * EVTCHNOP_unmask: Unmask the specified local event-channel port and deliver + * a notification to the appropriate VCPU if an event is pending. + */ +#define EVTCHNOP_unmask 9 +struct evtchn_unmask { + /* IN parameters. */ + evtchn_port_t port; +}; + +struct evtchn_op { + uint32_t cmd; /* EVTCHNOP_* */ + union { + struct evtchn_alloc_unbound alloc_unbound; + struct evtchn_bind_interdomain bind_interdomain; + struct evtchn_bind_virq bind_virq; + struct evtchn_bind_pirq bind_pirq; + struct evtchn_bind_ipi bind_ipi; + struct evtchn_close close; + struct evtchn_send send; + struct evtchn_status status; + struct evtchn_bind_vcpu bind_vcpu; + struct evtchn_unmask unmask; + } u; +}; +DEFINE_GUEST_HANDLE_STRUCT(evtchn_op); + +#endif /* __XEN_PUBLIC_EVENT_CHANNEL_H__ */ diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h new file mode 100644 index 000000000000..d73228d16488 --- /dev/null +++ b/include/xen/interface/features.h @@ -0,0 +1,43 @@ +/****************************************************************************** + * features.h + * + * Feature flags, reported by XENVER_get_features. + * + * Copyright (c) 2006, Keir Fraser <keir@xensource.com> + */ + +#ifndef __XEN_PUBLIC_FEATURES_H__ +#define __XEN_PUBLIC_FEATURES_H__ + +/* + * If set, the guest does not need to write-protect its pagetables, and can + * update them via direct writes. + */ +#define XENFEAT_writable_page_tables 0 + +/* + * If set, the guest does not need to write-protect its segment descriptor + * tables, and can update them via direct writes. + */ +#define XENFEAT_writable_descriptor_tables 1 + +/* + * If set, translation between the guest's 'pseudo-physical' address space + * and the host's machine address space are handled by the hypervisor. In this + * mode the guest does not need to perform phys-to/from-machine translations + * when performing page table operations. + */ +#define XENFEAT_auto_translated_physmap 2 + +/* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */ +#define XENFEAT_supervisor_mode_kernel 3 + +/* + * If set, the guest does not need to allocate x86 PAE page directories + * below 4GB. This flag is usually implied by auto_translated_physmap. + */ +#define XENFEAT_pae_pgdir_above_4gb 4 + +#define XENFEAT_NR_SUBMAPS 1 + +#endif /* __XEN_PUBLIC_FEATURES_H__ */ diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h new file mode 100644 index 000000000000..219049802cf2 --- /dev/null +++ b/include/xen/interface/grant_table.h @@ -0,0 +1,375 @@ +/****************************************************************************** + * grant_table.h + * + * Interface for granting foreign access to page frames, and receiving + * page-ownership transfers. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Copyright (c) 2004, K A Fraser + */ + +#ifndef __XEN_PUBLIC_GRANT_TABLE_H__ +#define __XEN_PUBLIC_GRANT_TABLE_H__ + + +/*********************************** + * GRANT TABLE REPRESENTATION + */ + +/* Some rough guidelines on accessing and updating grant-table entries + * in a concurrency-safe manner. For more information, Linux contains a + * reference implementation for guest OSes (arch/xen/kernel/grant_table.c). + * + * NB. WMB is a no-op on current-generation x86 processors. However, a + * compiler barrier will still be required. + * + * Introducing a valid entry into the grant table: + * 1. Write ent->domid. + * 2. Write ent->frame: + * GTF_permit_access: Frame to which access is permitted. + * GTF_accept_transfer: Pseudo-phys frame slot being filled by new + * frame, or zero if none. + * 3. Write memory barrier (WMB). + * 4. Write ent->flags, inc. valid type. + * + * Invalidating an unused GTF_permit_access entry: + * 1. flags = ent->flags. + * 2. Observe that !(flags & (GTF_reading|GTF_writing)). + * 3. Check result of SMP-safe CMPXCHG(&ent->flags, flags, 0). + * NB. No need for WMB as reuse of entry is control-dependent on success of + * step 3, and all architectures guarantee ordering of ctrl-dep writes. + * + * Invalidating an in-use GTF_permit_access entry: + * This cannot be done directly. Request assistance from the domain controller + * which can set a timeout on the use of a grant entry and take necessary + * action. (NB. This is not yet implemented!). + * + * Invalidating an unused GTF_accept_transfer entry: + * 1. flags = ent->flags. + * 2. Observe that !(flags & GTF_transfer_committed). [*] + * 3. Check result of SMP-safe CMPXCHG(&ent->flags, flags, 0). + * NB. No need for WMB as reuse of entry is control-dependent on success of + * step 3, and all architectures guarantee ordering of ctrl-dep writes. + * [*] If GTF_transfer_committed is set then the grant entry is 'committed'. + * The guest must /not/ modify the grant entry until the address of the + * transferred frame is written. It is safe for the guest to spin waiting + * for this to occur (detect by observing GTF_transfer_completed in + * ent->flags). + * + * Invalidating a committed GTF_accept_transfer entry: + * 1. Wait for (ent->flags & GTF_transfer_completed). + * + * Changing a GTF_permit_access from writable to read-only: + * Use SMP-safe CMPXCHG to set GTF_readonly, while checking !GTF_writing. + * + * Changing a GTF_permit_access from read-only to writable: + * Use SMP-safe bit-setting instruction. + */ + +/* + * A grant table comprises a packed array of grant entries in one or more + * page frames shared between Xen and a guest. + * [XEN]: This field is written by Xen and read by the sharing guest. + * [GST]: This field is written by the guest and read by Xen. + */ +struct grant_entry { + /* GTF_xxx: various type and flag information. [XEN,GST] */ + uint16_t flags; + /* The domain being granted foreign privileges. [GST] */ + domid_t domid; + /* + * GTF_permit_access: Frame that @domid is allowed to map and access. [GST] + * GTF_accept_transfer: Frame whose ownership transferred by @domid. [XEN] + */ + uint32_t frame; +}; + +/* + * Type of grant entry. + * GTF_invalid: This grant entry grants no privileges. + * GTF_permit_access: Allow @domid to map/access @frame. + * GTF_accept_transfer: Allow @domid to transfer ownership of one page frame + * to this guest. Xen writes the page number to @frame. + */ +#define GTF_invalid (0U<<0) +#define GTF_permit_access (1U<<0) +#define GTF_accept_transfer (2U<<0) +#define GTF_type_mask (3U<<0) + +/* + * Subflags for GTF_permit_access. + * GTF_readonly: Restrict @domid to read-only mappings and accesses. [GST] + * GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN] + * GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN] + */ +#define _GTF_readonly (2) +#define GTF_readonly (1U<<_GTF_readonly) +#define _GTF_reading (3) +#define GTF_reading (1U<<_GTF_reading) +#define _GTF_writing (4) +#define GTF_writing (1U<<_GTF_writing) + +/* + * Subflags for GTF_accept_transfer: + * GTF_transfer_committed: Xen sets this flag to indicate that it is committed + * to transferring ownership of a page frame. When a guest sees this flag + * it must /not/ modify the grant entry until GTF_transfer_completed is + * set by Xen. + * GTF_transfer_completed: It is safe for the guest to spin-wait on this flag + * after reading GTF_transfer_committed. Xen will always write the frame + * address, followed by ORing this flag, in a timely manner. + */ +#define _GTF_transfer_committed (2) +#define GTF_transfer_committed (1U<<_GTF_transfer_committed) +#define _GTF_transfer_completed (3) +#define GTF_transfer_completed (1U<<_GTF_transfer_completed) + + +/*********************************** + * GRANT TABLE QUERIES AND USES + */ + +/* + * Reference to a grant entry in a specified domain's grant table. + */ +typedef uint32_t grant_ref_t; + +/* + * Handle to track a mapping created via a grant reference. + */ +typedef uint32_t grant_handle_t; + +/* + * GNTTABOP_map_grant_ref: Map the grant entry (<dom>,<ref>) for access + * by devices and/or host CPUs. If successful, <handle> is a tracking number + * that must be presented later to destroy the mapping(s). On error, <handle> + * is a negative status code. + * NOTES: + * 1. If GNTMAP_device_map is specified then <dev_bus_addr> is the address + * via which I/O devices may access the granted frame. + * 2. If GNTMAP_host_map is specified then a mapping will be added at + * either a host virtual address in the current address space, or at + * a PTE at the specified machine address. The type of mapping to + * perform is selected through the GNTMAP_contains_pte flag, and the + * address is specified in <host_addr>. + * 3. Mappings should only be destroyed via GNTTABOP_unmap_grant_ref. If a + * host mapping is destroyed by other means then it is *NOT* guaranteed + * to be accounted to the correct grant reference! + */ +#define GNTTABOP_map_grant_ref 0 +struct gnttab_map_grant_ref { + /* IN parameters. */ + uint64_t host_addr; + uint32_t flags; /* GNTMAP_* */ + grant_ref_t ref; + domid_t dom; + /* OUT parameters. */ + int16_t status; /* GNTST_* */ + grant_handle_t handle; + uint64_t dev_bus_addr; +}; + +/* + * GNTTABOP_unmap_grant_ref: Destroy one or more grant-reference mappings + * tracked by <handle>. If <host_addr> or <dev_bus_addr> is zero, that + * field is ignored. If non-zero, they must refer to a device/host mapping + * that is tracked by <handle> + * NOTES: + * 1. The call may fail in an undefined manner if either mapping is not + * tracked by <handle>. + * 3. After executing a batch of unmaps, it is guaranteed that no stale + * mappings will remain in the device or host TLBs. + */ +#define GNTTABOP_unmap_grant_ref 1 +struct gnttab_unmap_grant_ref { + /* IN parameters. */ + uint64_t host_addr; + uint64_t dev_bus_addr; + grant_handle_t handle; + /* OUT parameters. */ + int16_t status; /* GNTST_* */ +}; + +/* + * GNTTABOP_setup_table: Set up a grant table for <dom> comprising at least + * <nr_frames> pages. The frame addresses are written to the <frame_list>. + * Only <nr_frames> addresses are written, even if the table is larger. + * NOTES: + * 1. <dom> may be specified as DOMID_SELF. + * 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF. + * 3. Xen may not support more than a single grant-table page per domain. + */ +#define GNTTABOP_setup_table 2 +struct gnttab_setup_table { + /* IN parameters. */ + domid_t dom; + uint32_t nr_frames; + /* OUT parameters. */ + int16_t status; /* GNTST_* */ + ulong *frame_list; +}; + +/* + * GNTTABOP_dump_table: Dump the contents of the grant table to the + * xen console. Debugging use only. + */ +#define GNTTABOP_dump_table 3 +struct gnttab_dump_table { + /* IN parameters. */ + domid_t dom; + /* OUT parameters. */ + int16_t status; /* GNTST_* */ +}; + +/* + * GNTTABOP_transfer_grant_ref: Transfer <frame> to a foreign domain. The + * foreign domain has previously registered its interest in the transfer via + * <domid, ref>. + * + * Note that, even if the transfer fails, the specified page no longer belongs + * to the calling domain *unless* the error is GNTST_bad_page. + */ +#define GNTTABOP_transfer 4 +struct gnttab_transfer { + /* IN parameters. */ + unsigned long mfn; + domid_t domid; + grant_ref_t ref; + /* OUT parameters. */ + int16_t status; +}; + + +/* + * GNTTABOP_copy: Hypervisor based copy + * source and destinations can be eithers MFNs or, for foreign domains, + * grant references. the foreign domain has to grant read/write access + * in its grant table. + * + * The flags specify what type source and destinations are (either MFN + * or grant reference). + * + * Note that this can also be used to copy data between two domains + * via a third party if the source and destination domains had previously + * grant appropriate access to their pages to the third party. + * + * source_offset specifies an offset in the source frame, dest_offset + * the offset in the target frame and len specifies the number of + * bytes to be copied. + */ + +#define _GNTCOPY_source_gref (0) +#define GNTCOPY_source_gref (1<<_GNTCOPY_source_gref) +#define _GNTCOPY_dest_gref (1) +#define GNTCOPY_dest_gref (1<<_GNTCOPY_dest_gref) + +#define GNTTABOP_copy 5 +struct gnttab_copy { + /* IN parameters. */ + struct { + union { + grant_ref_t ref; + unsigned long gmfn; + } u; + domid_t domid; + uint16_t offset; + } source, dest; + uint16_t len; + uint16_t flags; /* GNTCOPY_* */ + /* OUT parameters. */ + int16_t status; +}; + +/* + * GNTTABOP_query_size: Query the current and maximum sizes of the shared + * grant table. + * NOTES: + * 1. <dom> may be specified as DOMID_SELF. + * 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF. + */ +#define GNTTABOP_query_size 6 +struct gnttab_query_size { + /* IN parameters. */ + domid_t dom; + /* OUT parameters. */ + uint32_t nr_frames; + uint32_t max_nr_frames; + int16_t status; /* GNTST_* */ +}; + + +/* + * Bitfield values for update_pin_status.flags. + */ + /* Map the grant entry for access by I/O devices. */ +#define _GNTMAP_device_map (0) +#define GNTMAP_device_map (1<<_GNTMAP_device_map) + /* Map the grant entry for access by host CPUs. */ +#define _GNTMAP_host_map (1) +#define GNTMAP_host_map (1<<_GNTMAP_host_map) + /* Accesses to the granted frame will be restricted to read-only access. */ +#define _GNTMAP_readonly (2) +#define GNTMAP_readonly (1<<_GNTMAP_readonly) + /* + * GNTMAP_host_map subflag: + * 0 => The host mapping is usable only by the guest OS. + * 1 => The host mapping is usable by guest OS + current application. + */ +#define _GNTMAP_application_map (3) +#define GNTMAP_application_map (1<<_GNTMAP_application_map) + + /* + * GNTMAP_contains_pte subflag: + * 0 => This map request contains a host virtual address. + * 1 => This map request contains the machine addess of the PTE to update. + */ +#define _GNTMAP_contains_pte (4) +#define GNTMAP_contains_pte (1<<_GNTMAP_contains_pte) + +/* + * Values for error status returns. All errors are -ve. + */ +#define GNTST_okay (0) /* Normal return. */ +#define GNTST_general_error (-1) /* General undefined error. */ +#define GNTST_bad_domain (-2) /* Unrecognsed domain id. */ +#define GNTST_bad_gntref (-3) /* Unrecognised or inappropriate gntref. */ +#define GNTST_bad_handle (-4) /* Unrecognised or inappropriate handle. */ +#define GNTST_bad_virt_addr (-5) /* Inappropriate virtual address to map. */ +#define GNTST_bad_dev_addr (-6) /* Inappropriate device address to unmap.*/ +#define GNTST_no_device_space (-7) /* Out of space in I/O MMU. */ +#define GNTST_permission_denied (-8) /* Not enough privilege for operation. */ +#define GNTST_bad_page (-9) /* Specified page was invalid for op. */ +#define GNTST_bad_copy_arg (-10) /* copy arguments cross page boundary */ + +#define GNTTABOP_error_msgs { \ + "okay", \ + "undefined error", \ + "unrecognised domain id", \ + "invalid grant reference", \ + "invalid mapping handle", \ + "invalid virtual address", \ + "invalid device address", \ + "no spare translation slot in the I/O MMU", \ + "permission denied", \ + "bad page", \ + "copy arguments cross page boundary" \ +} + +#endif /* __XEN_PUBLIC_GRANT_TABLE_H__ */ diff --git a/include/xen/interface/io/blkif.h b/include/xen/interface/io/blkif.h new file mode 100644 index 000000000000..c2d1fa4dc1ee --- /dev/null +++ b/include/xen/interface/io/blkif.h @@ -0,0 +1,94 @@ +/****************************************************************************** + * blkif.h + * + * Unified block-device I/O interface for Xen guest OSes. + * + * Copyright (c) 2003-2004, Keir Fraser + */ + +#ifndef __XEN_PUBLIC_IO_BLKIF_H__ +#define __XEN_PUBLIC_IO_BLKIF_H__ + +#include "ring.h" +#include "../grant_table.h" + +/* + * Front->back notifications: When enqueuing a new request, sending a + * notification can be made conditional on req_event (i.e., the generic + * hold-off mechanism provided by the ring macros). Backends must set + * req_event appropriately (e.g., using RING_FINAL_CHECK_FOR_REQUESTS()). + * + * Back->front notifications: When enqueuing a new response, sending a + * notification can be made conditional on rsp_event (i.e., the generic + * hold-off mechanism provided by the ring macros). Frontends must set + * rsp_event appropriately (e.g., using RING_FINAL_CHECK_FOR_RESPONSES()). + */ + +typedef uint16_t blkif_vdev_t; +typedef uint64_t blkif_sector_t; + +/* + * REQUEST CODES. + */ +#define BLKIF_OP_READ 0 +#define BLKIF_OP_WRITE 1 +/* + * Recognised only if "feature-barrier" is present in backend xenbus info. + * The "feature_barrier" node contains a boolean indicating whether barrier + * requests are likely to succeed or fail. Either way, a barrier request + * may fail at any time with BLKIF_RSP_EOPNOTSUPP if it is unsupported by + * the underlying block-device hardware. The boolean simply indicates whether + * or not it is worthwhile for the frontend to attempt barrier requests. + * If a backend does not recognise BLKIF_OP_WRITE_BARRIER, it should *not* + * create the "feature-barrier" node! + */ +#define BLKIF_OP_WRITE_BARRIER 2 + +/* + * Maximum scatter/gather segments per request. + * This is carefully chosen so that sizeof(struct blkif_ring) <= PAGE_SIZE. + * NB. This could be 12 if the ring indexes weren't stored in the same page. + */ +#define BLKIF_MAX_SEGMENTS_PER_REQUEST 11 + +struct blkif_request { + uint8_t operation; /* BLKIF_OP_??? */ + uint8_t nr_segments; /* number of segments */ + blkif_vdev_t handle; /* only for read/write requests */ + uint64_t id; /* private guest value, echoed in resp */ + blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ + struct blkif_request_segment { + grant_ref_t gref; /* reference to I/O buffer frame */ + /* @first_sect: first sector in frame to transfer (inclusive). */ + /* @last_sect: last sector in frame to transfer (inclusive). */ + uint8_t first_sect, last_sect; + } seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; +}; + +struct blkif_response { + uint64_t id; /* copied from request */ + uint8_t operation; /* copied from request */ + int16_t status; /* BLKIF_RSP_??? */ +}; + +/* + * STATUS RETURN CODES. + */ + /* Operation not supported (only happens on barrier writes). */ +#define BLKIF_RSP_EOPNOTSUPP -2 + /* Operation failed for some unspecified reason (-EIO). */ +#define BLKIF_RSP_ERROR -1 + /* Operation completed successfully. */ +#define BLKIF_RSP_OKAY 0 + +/* + * Generate blkif ring structures and types. + */ + +DEFINE_RING_TYPES(blkif, struct blkif_request, struct blkif_response); + +#define VDISK_CDROM 0x1 +#define VDISK_REMOVABLE 0x2 +#define VDISK_READONLY 0x4 + +#endif /* __XEN_PUBLIC_IO_BLKIF_H__ */ diff --git a/include/xen/interface/io/console.h b/include/xen/interface/io/console.h new file mode 100644 index 000000000000..e563de70f784 --- /dev/null +++ b/include/xen/interface/io/console.h @@ -0,0 +1,23 @@ +/****************************************************************************** + * console.h + * + * Console I/O interface for Xen guest OSes. + * + * Copyright (c) 2005, Keir Fraser + */ + +#ifndef __XEN_PUBLIC_IO_CONSOLE_H__ +#define __XEN_PUBLIC_IO_CONSOLE_H__ + +typedef uint32_t XENCONS_RING_IDX; + +#define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1)) + +struct xencons_interface { + char in[1024]; + char out[2048]; + XENCONS_RING_IDX in_cons, in_prod; + XENCONS_RING_IDX out_cons, out_prod; +}; + +#endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */ diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h new file mode 100644 index 000000000000..518481c95f18 --- /dev/null +++ b/include/xen/interface/io/netif.h @@ -0,0 +1,158 @@ +/****************************************************************************** + * netif.h + * + * Unified network-device I/O interface for Xen guest OSes. + * + * Copyright (c) 2003-2004, Keir Fraser + */ + +#ifndef __XEN_PUBLIC_IO_NETIF_H__ +#define __XEN_PUBLIC_IO_NETIF_H__ + +#include "ring.h" +#include "../grant_table.h" + +/* + * Notifications after enqueuing any type of message should be conditional on + * the appropriate req_event or rsp_event field in the shared ring. + * If the client sends notification for rx requests then it should specify + * feature 'feature-rx-notify' via xenbus. Otherwise the backend will assume + * that it cannot safely queue packets (as it may not be kicked to send them). + */ + +/* + * This is the 'wire' format for packets: + * Request 1: netif_tx_request -- NETTXF_* (any flags) + * [Request 2: netif_tx_extra] (only if request 1 has NETTXF_extra_info) + * [Request 3: netif_tx_extra] (only if request 2 has XEN_NETIF_EXTRA_MORE) + * Request 4: netif_tx_request -- NETTXF_more_data + * Request 5: netif_tx_request -- NETTXF_more_data + * ... + * Request N: netif_tx_request -- 0 + */ + +/* Protocol checksum field is blank in the packet (hardware offload)? */ +#define _NETTXF_csum_blank (0) +#define NETTXF_csum_blank (1U<<_NETTXF_csum_blank) + +/* Packet data has been validated against protocol checksum. */ +#define _NETTXF_data_validated (1) +#define NETTXF_data_validated (1U<<_NETTXF_data_validated) + +/* Packet continues in the next request descriptor. */ +#define _NETTXF_more_data (2) +#define NETTXF_more_data (1U<<_NETTXF_more_data) + +/* Packet to be followed by extra descriptor(s). */ +#define _NETTXF_extra_info (3) +#define NETTXF_extra_info (1U<<_NETTXF_extra_info) + +struct xen_netif_tx_request { + grant_ref_t gref; /* Reference to buffer page */ + uint16_t offset; /* Offset within buffer page */ + uint16_t flags; /* NETTXF_* */ + uint16_t id; /* Echoed in response message. */ + uint16_t size; /* Packet size in bytes. */ +}; + +/* Types of netif_extra_info descriptors. */ +#define XEN_NETIF_EXTRA_TYPE_NONE (0) /* Never used - invalid */ +#define XEN_NETIF_EXTRA_TYPE_GSO (1) /* u.gso */ +#define XEN_NETIF_EXTRA_TYPE_MAX (2) + +/* netif_extra_info flags. */ +#define _XEN_NETIF_EXTRA_FLAG_MORE (0) +#define XEN_NETIF_EXTRA_FLAG_MORE (1U<<_XEN_NETIF_EXTRA_FLAG_MORE) + +/* GSO types - only TCPv4 currently supported. */ +#define XEN_NETIF_GSO_TYPE_TCPV4 (1) + +/* + * This structure needs to fit within both netif_tx_request and + * netif_rx_response for compatibility. + */ +struct xen_netif_extra_info { + uint8_t type; /* XEN_NETIF_EXTRA_TYPE_* */ + uint8_t flags; /* XEN_NETIF_EXTRA_FLAG_* */ + + union { + struct { + /* + * Maximum payload size of each segment. For + * example, for TCP this is just the path MSS. + */ + uint16_t size; + + /* + * GSO type. This determines the protocol of + * the packet and any extra features required + * to segment the packet properly. + */ + uint8_t type; /* XEN_NETIF_GSO_TYPE_* */ + + /* Future expansion. */ + uint8_t pad; + + /* + * GSO features. This specifies any extra GSO + * features required to process this packet, + * such as ECN support for TCPv4. + */ + uint16_t features; /* XEN_NETIF_GSO_FEAT_* */ + } gso; + + uint16_t pad[3]; + } u; +}; + +struct xen_netif_tx_response { + uint16_t id; + int16_t status; /* NETIF_RSP_* */ +}; + +struct xen_netif_rx_request { + uint16_t id; /* Echoed in response message. */ + grant_ref_t gref; /* Reference to incoming granted frame */ +}; + +/* Packet data has been validated against protocol checksum. */ +#define _NETRXF_data_validated (0) +#define NETRXF_data_validated (1U<<_NETRXF_data_validated) + +/* Protocol checksum field is blank in the packet (hardware offload)? */ +#define _NETRXF_csum_blank (1) +#define NETRXF_csum_blank (1U<<_NETRXF_csum_blank) + +/* Packet continues in the next request descriptor. */ +#define _NETRXF_more_data (2) +#define NETRXF_more_data (1U<<_NETRXF_more_data) + +/* Packet to be followed by extra descriptor(s). */ +#define _NETRXF_extra_info (3) +#define NETRXF_extra_info (1U<<_NETRXF_extra_info) + +struct xen_netif_rx_response { + uint16_t id; + uint16_t offset; /* Offset in page of start of received packet */ + uint16_t flags; /* NETRXF_* */ + int16_t status; /* -ve: BLKIF_RSP_* ; +ve: Rx'ed pkt size. */ +}; + +/* + * Generate netif ring structures and types. + */ + +DEFINE_RING_TYPES(xen_netif_tx, + struct xen_netif_tx_request, + struct xen_netif_tx_response); +DEFINE_RING_TYPES(xen_netif_rx, + struct xen_netif_rx_request, + struct xen_netif_rx_response); + +#define NETIF_RSP_DROPPED -2 +#define NETIF_RSP_ERROR -1 +#define NETIF_RSP_OKAY 0 +/* No response: used for auxiliary requests (e.g., netif_tx_extra). */ +#define NETIF_RSP_NULL 1 + +#endif diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h new file mode 100644 index 000000000000..e8cbf431c8cc --- /dev/null +++ b/include/xen/interface/io/ring.h @@ -0,0 +1,260 @@ +/****************************************************************************** + * ring.h + * + * Shared producer-consumer ring macros. + * + * Tim Deegan and Andrew Warfield November 2004. + */ + +#ifndef __XEN_PUBLIC_IO_RING_H__ +#define __XEN_PUBLIC_IO_RING_H__ + +typedef unsigned int RING_IDX; + +/* Round a 32-bit unsigned constant down to the nearest power of two. */ +#define __RD2(_x) (((_x) & 0x00000002) ? 0x2 : ((_x) & 0x1)) +#define __RD4(_x) (((_x) & 0x0000000c) ? __RD2((_x)>>2)<<2 : __RD2(_x)) +#define __RD8(_x) (((_x) & 0x000000f0) ? __RD4((_x)>>4)<<4 : __RD4(_x)) +#define __RD16(_x) (((_x) & 0x0000ff00) ? __RD8((_x)>>8)<<8 : __RD8(_x)) +#define __RD32(_x) (((_x) & 0xffff0000) ? __RD16((_x)>>16)<<16 : __RD16(_x)) + +/* + * Calculate size of a shared ring, given the total available space for the + * ring and indexes (_sz), and the name tag of the request/response structure. + * A ring contains as many entries as will fit, rounded down to the nearest + * power of two (so we can mask with (size-1) to loop around). + */ +#define __RING_SIZE(_s, _sz) \ + (__RD32(((_sz) - (long)&(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0]))) + +/* + * Macros to make the correct C datatypes for a new kind of ring. + * + * To make a new ring datatype, you need to have two message structures, + * let's say struct request, and struct response already defined. + * + * In a header where you want the ring datatype declared, you then do: + * + * DEFINE_RING_TYPES(mytag, struct request, struct response); + * + * These expand out to give you a set of types, as you can see below. + * The most important of these are: + * + * struct mytag_sring - The shared ring. + * struct mytag_front_ring - The 'front' half of the ring. + * struct mytag_back_ring - The 'back' half of the ring. + * + * To initialize a ring in your code you need to know the location and size + * of the shared memory area (PAGE_SIZE, for instance). To initialise + * the front half: + * + * struct mytag_front_ring front_ring; + * SHARED_RING_INIT((struct mytag_sring *)shared_page); + * FRONT_RING_INIT(&front_ring, (struct mytag_sring *)shared_page, + * PAGE_SIZE); + * + * Initializing the back follows similarly (note that only the front + * initializes the shared ring): + * + * struct mytag_back_ring back_ring; + * BACK_RING_INIT(&back_ring, (struct mytag_sring *)shared_page, + * PAGE_SIZE); + */ + +#define DEFINE_RING_TYPES(__name, __req_t, __rsp_t) \ + \ +/* Shared ring entry */ \ +union __name##_sring_entry { \ + __req_t req; \ + __rsp_t rsp; \ +}; \ + \ +/* Shared ring page */ \ +struct __name##_sring { \ + RING_IDX req_prod, req_event; \ + RING_IDX rsp_prod, rsp_event; \ + uint8_t pad[48]; \ + union __name##_sring_entry ring[1]; /* variable-length */ \ +}; \ + \ +/* "Front" end's private variables */ \ +struct __name##_front_ring { \ + RING_IDX req_prod_pvt; \ + RING_IDX rsp_cons; \ + unsigned int nr_ents; \ + struct __name##_sring *sring; \ +}; \ + \ +/* "Back" end's private variables */ \ +struct __name##_back_ring { \ + RING_IDX rsp_prod_pvt; \ + RING_IDX req_cons; \ + unsigned int nr_ents; \ + struct __name##_sring *sring; \ +}; + +/* + * Macros for manipulating rings. + * + * FRONT_RING_whatever works on the "front end" of a ring: here + * requests are pushed on to the ring and responses taken off it. + * + * BACK_RING_whatever works on the "back end" of a ring: here + * requests are taken off the ring and responses put on. + * + * N.B. these macros do NO INTERLOCKS OR FLOW CONTROL. + * This is OK in 1-for-1 request-response situations where the + * requestor (front end) never has more than RING_SIZE()-1 + * outstanding requests. + */ + +/* Initialising empty rings */ +#define SHARED_RING_INIT(_s) do { \ + (_s)->req_prod = (_s)->rsp_prod = 0; \ + (_s)->req_event = (_s)->rsp_event = 1; \ + memset((_s)->pad, 0, sizeof((_s)->pad)); \ +} while(0) + +#define FRONT_RING_INIT(_r, _s, __size) do { \ + (_r)->req_prod_pvt = 0; \ + (_r)->rsp_cons = 0; \ + (_r)->nr_ents = __RING_SIZE(_s, __size); \ + (_r)->sring = (_s); \ +} while (0) + +#define BACK_RING_INIT(_r, _s, __size) do { \ + (_r)->rsp_prod_pvt = 0; \ + (_r)->req_cons = 0; \ + (_r)->nr_ents = __RING_SIZE(_s, __size); \ + (_r)->sring = (_s); \ +} while (0) + +/* Initialize to existing shared indexes -- for recovery */ +#define FRONT_RING_ATTACH(_r, _s, __size) do { \ + (_r)->sring = (_s); \ + (_r)->req_prod_pvt = (_s)->req_prod; \ + (_r)->rsp_cons = (_s)->rsp_prod; \ + (_r)->nr_ents = __RING_SIZE(_s, __size); \ +} while (0) + +#define BACK_RING_ATTACH(_r, _s, __size) do { \ + (_r)->sring = (_s); \ + (_r)->rsp_prod_pvt = (_s)->rsp_prod; \ + (_r)->req_cons = (_s)->req_prod; \ + (_r)->nr_ents = __RING_SIZE(_s, __size); \ +} while (0) + +/* How big is this ring? */ +#define RING_SIZE(_r) \ + ((_r)->nr_ents) + +/* Number of free requests (for use on front side only). */ +#define RING_FREE_REQUESTS(_r) \ + (RING_SIZE(_r) - ((_r)->req_prod_pvt - (_r)->rsp_cons)) + +/* Test if there is an empty slot available on the front ring. + * (This is only meaningful from the front. ) + */ +#define RING_FULL(_r) \ + (RING_FREE_REQUESTS(_r) == 0) + +/* Test if there are outstanding messages to be processed on a ring. */ +#define RING_HAS_UNCONSUMED_RESPONSES(_r) \ + ((_r)->sring->rsp_prod - (_r)->rsp_cons) + +#define RING_HAS_UNCONSUMED_REQUESTS(_r) \ + ({ \ + unsigned int req = (_r)->sring->req_prod - (_r)->req_cons; \ + unsigned int rsp = RING_SIZE(_r) - \ + ((_r)->req_cons - (_r)->rsp_prod_pvt); \ + req < rsp ? req : rsp; \ + }) + +/* Direct access to individual ring elements, by index. */ +#define RING_GET_REQUEST(_r, _idx) \ + (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].req)) + +#define RING_GET_RESPONSE(_r, _idx) \ + (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp)) + +/* Loop termination condition: Would the specified index overflow the ring? */ +#define RING_REQUEST_CONS_OVERFLOW(_r, _cons) \ + (((_cons) - (_r)->rsp_prod_pvt) >= RING_SIZE(_r)) + +#define RING_PUSH_REQUESTS(_r) do { \ + wmb(); /* back sees requests /before/ updated producer index */ \ + (_r)->sring->req_prod = (_r)->req_prod_pvt; \ +} while (0) + +#define RING_PUSH_RESPONSES(_r) do { \ + wmb(); /* front sees responses /before/ updated producer index */ \ + (_r)->sring->rsp_prod = (_r)->rsp_prod_pvt; \ +} while (0) + +/* + * Notification hold-off (req_event and rsp_event): + * + * When queueing requests or responses on a shared ring, it may not always be + * necessary to notify the remote end. For example, if requests are in flight + * in a backend, the front may be able to queue further requests without + * notifying the back (if the back checks for new requests when it queues + * responses). + * + * When enqueuing requests or responses: + * + * Use RING_PUSH_{REQUESTS,RESPONSES}_AND_CHECK_NOTIFY(). The second argument + * is a boolean return value. True indicates that the receiver requires an + * asynchronous notification. + * + * After dequeuing requests or responses (before sleeping the connection): + * + * Use RING_FINAL_CHECK_FOR_REQUESTS() or RING_FINAL_CHECK_FOR_RESPONSES(). + * The second argument is a boolean return value. True indicates that there + * are pending messages on the ring (i.e., the connection should not be put + * to sleep). + * + * These macros will set the req_event/rsp_event field to trigger a + * notification on the very next message that is enqueued. If you want to + * create batches of work (i.e., only receive a notification after several + * messages have been enqueued) then you will need to create a customised + * version of the FINAL_CHECK macro in your own code, which sets the event + * field appropriately. + */ + +#define RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(_r, _notify) do { \ + RING_IDX __old = (_r)->sring->req_prod; \ + RING_IDX __new = (_r)->req_prod_pvt; \ + wmb(); /* back sees requests /before/ updated producer index */ \ + (_r)->sring->req_prod = __new; \ + mb(); /* back sees new requests /before/ we check req_event */ \ + (_notify) = ((RING_IDX)(__new - (_r)->sring->req_event) < \ + (RING_IDX)(__new - __old)); \ +} while (0) + +#define RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(_r, _notify) do { \ + RING_IDX __old = (_r)->sring->rsp_prod; \ + RING_IDX __new = (_r)->rsp_prod_pvt; \ + wmb(); /* front sees responses /before/ updated producer index */ \ + (_r)->sring->rsp_prod = __new; \ + mb(); /* front sees new responses /before/ we check rsp_event */ \ + (_notify) = ((RING_IDX)(__new - (_r)->sring->rsp_event) < \ + (RING_IDX)(__new - __old)); \ +} while (0) + +#define RING_FINAL_CHECK_FOR_REQUESTS(_r, _work_to_do) do { \ + (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \ + if (_work_to_do) break; \ + (_r)->sring->req_event = (_r)->req_cons + 1; \ + mb(); \ + (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \ +} while (0) + +#define RING_FINAL_CHECK_FOR_RESPONSES(_r, _work_to_do) do { \ + (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \ + if (_work_to_do) break; \ + (_r)->sring->rsp_event = (_r)->rsp_cons + 1; \ + mb(); \ + (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \ +} while (0) + +#endif /* __XEN_PUBLIC_IO_RING_H__ */ diff --git a/include/xen/interface/io/xenbus.h b/include/xen/interface/io/xenbus.h new file mode 100644 index 000000000000..46508c7fa399 --- /dev/null +++ b/include/xen/interface/io/xenbus.h @@ -0,0 +1,44 @@ +/***************************************************************************** + * xenbus.h + * + * Xenbus protocol details. + * + * Copyright (C) 2005 XenSource Ltd. + */ + +#ifndef _XEN_PUBLIC_IO_XENBUS_H +#define _XEN_PUBLIC_IO_XENBUS_H + +/* The state of either end of the Xenbus, i.e. the current communication + status of initialisation across the bus. States here imply nothing about + the state of the connection between the driver and the kernel's device + layers. */ +enum xenbus_state +{ + XenbusStateUnknown = 0, + XenbusStateInitialising = 1, + XenbusStateInitWait = 2, /* Finished early + initialisation, but waiting + for information from the peer + or hotplug scripts. */ + XenbusStateInitialised = 3, /* Initialised and waiting for a + connection from the peer. */ + XenbusStateConnected = 4, + XenbusStateClosing = 5, /* The device is being closed + due to an error or an unplug + event. */ + XenbusStateClosed = 6 + +}; + +#endif /* _XEN_PUBLIC_IO_XENBUS_H */ + +/* + * Local variables: + * c-file-style: "linux" + * indent-tabs-mode: t + * c-indent-level: 8 + * c-basic-offset: 8 + * tab-width: 8 + * End: + */ diff --git a/include/xen/interface/io/xs_wire.h b/include/xen/interface/io/xs_wire.h new file mode 100644 index 000000000000..99fcffb372d1 --- /dev/null +++ b/include/xen/interface/io/xs_wire.h @@ -0,0 +1,87 @@ +/* + * Details of the "wire" protocol between Xen Store Daemon and client + * library or guest kernel. + * Copyright (C) 2005 Rusty Russell IBM Corporation + */ + +#ifndef _XS_WIRE_H +#define _XS_WIRE_H + +enum xsd_sockmsg_type +{ + XS_DEBUG, + XS_DIRECTORY, + XS_READ, + XS_GET_PERMS, + XS_WATCH, + XS_UNWATCH, + XS_TRANSACTION_START, + XS_TRANSACTION_END, + XS_INTRODUCE, + XS_RELEASE, + XS_GET_DOMAIN_PATH, + XS_WRITE, + XS_MKDIR, + XS_RM, + XS_SET_PERMS, + XS_WATCH_EVENT, + XS_ERROR, + XS_IS_DOMAIN_INTRODUCED +}; + +#define XS_WRITE_NONE "NONE" +#define XS_WRITE_CREATE "CREATE" +#define XS_WRITE_CREATE_EXCL "CREATE|EXCL" + +/* We hand errors as strings, for portability. */ +struct xsd_errors +{ + int errnum; + const char *errstring; +}; +#define XSD_ERROR(x) { x, #x } +static struct xsd_errors xsd_errors[] __attribute__((unused)) = { + XSD_ERROR(EINVAL), + XSD_ERROR(EACCES), + XSD_ERROR(EEXIST), + XSD_ERROR(EISDIR), + XSD_ERROR(ENOENT), + XSD_ERROR(ENOMEM), + XSD_ERROR(ENOSPC), + XSD_ERROR(EIO), + XSD_ERROR(ENOTEMPTY), + XSD_ERROR(ENOSYS), + XSD_ERROR(EROFS), + XSD_ERROR(EBUSY), + XSD_ERROR(EAGAIN), + XSD_ERROR(EISCONN) +}; + +struct xsd_sockmsg +{ + uint32_t type; /* XS_??? */ + uint32_t req_id;/* Request identifier, echoed in daemon's response. */ + uint32_t tx_id; /* Transaction id (0 if not related to a transaction). */ + uint32_t len; /* Length of data following this. */ + + /* Generally followed by nul-terminated string(s). */ +}; + +enum xs_watch_type +{ + XS_WATCH_PATH = 0, + XS_WATCH_TOKEN +}; + +/* Inter-domain shared memory communications. */ +#define XENSTORE_RING_SIZE 1024 +typedef uint32_t XENSTORE_RING_IDX; +#define MASK_XENSTORE_IDX(idx) ((idx) & (XENSTORE_RING_SIZE-1)) +struct xenstore_domain_interface { + char req[XENSTORE_RING_SIZE]; /* Requests to xenstore daemon. */ + char rsp[XENSTORE_RING_SIZE]; /* Replies and async watch events. */ + XENSTORE_RING_IDX req_cons, req_prod; + XENSTORE_RING_IDX rsp_cons, rsp_prod; +}; + +#endif /* _XS_WIRE_H */ diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h new file mode 100644 index 000000000000..af36ead16817 --- /dev/null +++ b/include/xen/interface/memory.h @@ -0,0 +1,145 @@ +/****************************************************************************** + * memory.h + * + * Memory reservation and information. + * + * Copyright (c) 2005, Keir Fraser <keir@xensource.com> + */ + +#ifndef __XEN_PUBLIC_MEMORY_H__ +#define __XEN_PUBLIC_MEMORY_H__ + +/* + * Increase or decrease the specified domain's memory reservation. Returns a + * -ve errcode on failure, or the # extents successfully allocated or freed. + * arg == addr of struct xen_memory_reservation. + */ +#define XENMEM_increase_reservation 0 +#define XENMEM_decrease_reservation 1 +#define XENMEM_populate_physmap 6 +struct xen_memory_reservation { + + /* + * XENMEM_increase_reservation: + * OUT: MFN (*not* GMFN) bases of extents that were allocated + * XENMEM_decrease_reservation: + * IN: GMFN bases of extents to free + * XENMEM_populate_physmap: + * IN: GPFN bases of extents to populate with memory + * OUT: GMFN bases of extents that were allocated + * (NB. This command also updates the mach_to_phys translation table) + */ + GUEST_HANDLE(ulong) extent_start; + + /* Number of extents, and size/alignment of each (2^extent_order pages). */ + unsigned long nr_extents; + unsigned int extent_order; + + /* + * Maximum # bits addressable by the user of the allocated region (e.g., + * I/O devices often have a 32-bit limitation even in 64-bit systems). If + * zero then the user has no addressing restriction. + * This field is not used by XENMEM_decrease_reservation. + */ + unsigned int address_bits; + + /* + * Domain whose reservation is being changed. + * Unprivileged domains can specify only DOMID_SELF. + */ + domid_t domid; + +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_memory_reservation); + +/* + * Returns the maximum machine frame number of mapped RAM in this system. + * This command always succeeds (it never returns an error code). + * arg == NULL. + */ +#define XENMEM_maximum_ram_page 2 + +/* + * Returns the current or maximum memory reservation, in pages, of the + * specified domain (may be DOMID_SELF). Returns -ve errcode on failure. + * arg == addr of domid_t. + */ +#define XENMEM_current_reservation 3 +#define XENMEM_maximum_reservation 4 + +/* + * Returns a list of MFN bases of 2MB extents comprising the machine_to_phys + * mapping table. Architectures which do not have a m2p table do not implement + * this command. + * arg == addr of xen_machphys_mfn_list_t. + */ +#define XENMEM_machphys_mfn_list 5 +struct xen_machphys_mfn_list { + /* + * Size of the 'extent_start' array. Fewer entries will be filled if the + * machphys table is smaller than max_extents * 2MB. + */ + unsigned int max_extents; + + /* + * Pointer to buffer to fill with list of extent starts. If there are + * any large discontiguities in the machine address space, 2MB gaps in + * the machphys table will be represented by an MFN base of zero. + */ + GUEST_HANDLE(ulong) extent_start; + + /* + * Number of extents written to the above array. This will be smaller + * than 'max_extents' if the machphys table is smaller than max_e * 2MB. + */ + unsigned int nr_extents; +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_machphys_mfn_list); + +/* + * Sets the GPFN at which a particular page appears in the specified guest's + * pseudophysical address space. + * arg == addr of xen_add_to_physmap_t. + */ +#define XENMEM_add_to_physmap 7 +struct xen_add_to_physmap { + /* Which domain to change the mapping for. */ + domid_t domid; + + /* Source mapping space. */ +#define XENMAPSPACE_shared_info 0 /* shared info page */ +#define XENMAPSPACE_grant_table 1 /* grant table page */ + unsigned int space; + + /* Index into source mapping space. */ + unsigned long idx; + + /* GPFN where the source mapping page should appear. */ + unsigned long gpfn; +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_add_to_physmap); + +/* + * Translates a list of domain-specific GPFNs into MFNs. Returns a -ve error + * code on failure. This call only works for auto-translated guests. + */ +#define XENMEM_translate_gpfn_list 8 +struct xen_translate_gpfn_list { + /* Which domain to translate for? */ + domid_t domid; + + /* Length of list. */ + unsigned long nr_gpfns; + + /* List of GPFNs to translate. */ + GUEST_HANDLE(ulong) gpfn_list; + + /* + * Output list to contain MFN translations. May be the same as the input + * list (in which case each input GPFN is overwritten with the output MFN). + */ + GUEST_HANDLE(ulong) mfn_list; +}; +DEFINE_GUEST_HANDLE_STRUCT(xen_translate_gpfn_list); + +#endif /* __XEN_PUBLIC_MEMORY_H__ */ diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h new file mode 100644 index 000000000000..cd6939147cb6 --- /dev/null +++ b/include/xen/interface/physdev.h @@ -0,0 +1,145 @@ +/* + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifndef __XEN_PUBLIC_PHYSDEV_H__ +#define __XEN_PUBLIC_PHYSDEV_H__ + +/* + * Prototype for this hypercall is: + * int physdev_op(int cmd, void *args) + * @cmd == PHYSDEVOP_??? (physdev operation). + * @args == Operation-specific extra arguments (NULL if none). + */ + +/* + * Notify end-of-interrupt (EOI) for the specified IRQ. + * @arg == pointer to physdev_eoi structure. + */ +#define PHYSDEVOP_eoi 12 +struct physdev_eoi { + /* IN */ + uint32_t irq; +}; + +/* + * Query the status of an IRQ line. + * @arg == pointer to physdev_irq_status_query structure. + */ +#define PHYSDEVOP_irq_status_query 5 +struct physdev_irq_status_query { + /* IN */ + uint32_t irq; + /* OUT */ + uint32_t flags; /* XENIRQSTAT_* */ +}; + +/* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */ +#define _XENIRQSTAT_needs_eoi (0) +#define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi) + +/* IRQ shared by multiple guests? */ +#define _XENIRQSTAT_shared (1) +#define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared) + +/* + * Set the current VCPU's I/O privilege level. + * @arg == pointer to physdev_set_iopl structure. + */ +#define PHYSDEVOP_set_iopl 6 +struct physdev_set_iopl { + /* IN */ + uint32_t iopl; +}; + +/* + * Set the current VCPU's I/O-port permissions bitmap. + * @arg == pointer to physdev_set_iobitmap structure. + */ +#define PHYSDEVOP_set_iobitmap 7 +struct physdev_set_iobitmap { + /* IN */ + uint8_t * bitmap; + uint32_t nr_ports; +}; + +/* + * Read or write an IO-APIC register. + * @arg == pointer to physdev_apic structure. + */ +#define PHYSDEVOP_apic_read 8 +#define PHYSDEVOP_apic_write 9 +struct physdev_apic { + /* IN */ + unsigned long apic_physbase; + uint32_t reg; + /* IN or OUT */ + uint32_t value; +}; + +/* + * Allocate or free a physical upcall vector for the specified IRQ line. + * @arg == pointer to physdev_irq structure. + */ +#define PHYSDEVOP_alloc_irq_vector 10 +#define PHYSDEVOP_free_irq_vector 11 +struct physdev_irq { + /* IN */ + uint32_t irq; + /* IN or OUT */ + uint32_t vector; +}; + +/* + * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op() + * hypercall since 0x00030202. + */ +struct physdev_op { + uint32_t cmd; + union { + struct physdev_irq_status_query irq_status_query; + struct physdev_set_iopl set_iopl; + struct physdev_set_iobitmap set_iobitmap; + struct physdev_apic apic_op; + struct physdev_irq irq_op; + } u; +}; + +/* + * Notify that some PIRQ-bound event channels have been unmasked. + * ** This command is obsolete since interface version 0x00030202 and is ** + * ** unsupported by newer versions of Xen. ** + */ +#define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4 + +/* + * These all-capitals physdev operation names are superceded by the new names + * (defined above) since interface version 0x00030202. + */ +#define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query +#define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl +#define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap +#define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read +#define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write +#define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector +#define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector +#define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi +#define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared + +#endif /* __XEN_PUBLIC_PHYSDEV_H__ */ diff --git a/include/xen/interface/sched.h b/include/xen/interface/sched.h new file mode 100644 index 000000000000..5fec575a800a --- /dev/null +++ b/include/xen/interface/sched.h @@ -0,0 +1,77 @@ +/****************************************************************************** + * sched.h + * + * Scheduler state interactions + * + * Copyright (c) 2005, Keir Fraser <keir@xensource.com> + */ + +#ifndef __XEN_PUBLIC_SCHED_H__ +#define __XEN_PUBLIC_SCHED_H__ + +#include "event_channel.h" + +/* + * The prototype for this hypercall is: + * long sched_op_new(int cmd, void *arg) + * @cmd == SCHEDOP_??? (scheduler operation). + * @arg == Operation-specific extra argument(s), as described below. + * + * **NOTE**: + * Versions of Xen prior to 3.0.2 provide only the following legacy version + * of this hypercall, supporting only the commands yield, block and shutdown: + * long sched_op(int cmd, unsigned long arg) + * @cmd == SCHEDOP_??? (scheduler operation). + * @arg == 0 (SCHEDOP_yield and SCHEDOP_block) + * == SHUTDOWN_* code (SCHEDOP_shutdown) + */ + +/* + * Voluntarily yield the CPU. + * @arg == NULL. + */ +#define SCHEDOP_yield 0 + +/* + * Block execution of this VCPU until an event is received for processing. + * If called with event upcalls masked, this operation will atomically + * reenable event delivery and check for pending events before blocking the + * VCPU. This avoids a "wakeup waiting" race. + * @arg == NULL. + */ +#define SCHEDOP_block 1 + +/* + * Halt execution of this domain (all VCPUs) and notify the system controller. + * @arg == pointer to sched_shutdown structure. + */ +#define SCHEDOP_shutdown 2 +struct sched_shutdown { + unsigned int reason; /* SHUTDOWN_* */ +}; +DEFINE_GUEST_HANDLE_STRUCT(sched_shutdown); + +/* + * Poll a set of event-channel ports. Return when one or more are pending. An + * optional timeout may be specified. + * @arg == pointer to sched_poll structure. + */ +#define SCHEDOP_poll 3 +struct sched_poll { + GUEST_HANDLE(evtchn_port_t) ports; + unsigned int nr_ports; + uint64_t timeout; +}; +DEFINE_GUEST_HANDLE_STRUCT(sched_poll); + +/* + * Reason codes for SCHEDOP_shutdown. These may be interpreted by control + * software to determine the appropriate action. For the most part, Xen does + * not care about the shutdown code. + */ +#define SHUTDOWN_poweroff 0 /* Domain exited normally. Clean up and kill. */ +#define SHUTDOWN_reboot 1 /* Clean up, kill, and then restart. */ +#define SHUTDOWN_suspend 2 /* Clean up, save suspend info, kill. */ +#define SHUTDOWN_crash 3 /* Tell controller we've crashed. */ + +#endif /* __XEN_PUBLIC_SCHED_H__ */ diff --git a/include/xen/interface/vcpu.h b/include/xen/interface/vcpu.h new file mode 100644 index 000000000000..ff61ea365997 --- /dev/null +++ b/include/xen/interface/vcpu.h @@ -0,0 +1,167 @@ +/****************************************************************************** + * vcpu.h + * + * VCPU initialisation, query, and hotplug. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Copyright (c) 2005, Keir Fraser <keir@xensource.com> + */ + +#ifndef __XEN_PUBLIC_VCPU_H__ +#define __XEN_PUBLIC_VCPU_H__ + +/* + * Prototype for this hypercall is: + * int vcpu_op(int cmd, int vcpuid, void *extra_args) + * @cmd == VCPUOP_??? (VCPU operation). + * @vcpuid == VCPU to operate on. + * @extra_args == Operation-specific extra arguments (NULL if none). + */ + +/* + * Initialise a VCPU. Each VCPU can be initialised only once. A + * newly-initialised VCPU will not run until it is brought up by VCPUOP_up. + * + * @extra_arg == pointer to vcpu_guest_context structure containing initial + * state for the VCPU. + */ +#define VCPUOP_initialise 0 + +/* + * Bring up a VCPU. This makes the VCPU runnable. This operation will fail + * if the VCPU has not been initialised (VCPUOP_initialise). + */ +#define VCPUOP_up 1 + +/* + * Bring down a VCPU (i.e., make it non-runnable). + * There are a few caveats that callers should observe: + * 1. This operation may return, and VCPU_is_up may return false, before the + * VCPU stops running (i.e., the command is asynchronous). It is a good + * idea to ensure that the VCPU has entered a non-critical loop before + * bringing it down. Alternatively, this operation is guaranteed + * synchronous if invoked by the VCPU itself. + * 2. After a VCPU is initialised, there is currently no way to drop all its + * references to domain memory. Even a VCPU that is down still holds + * memory references via its pagetable base pointer and GDT. It is good + * practise to move a VCPU onto an 'idle' or default page table, LDT and + * GDT before bringing it down. + */ +#define VCPUOP_down 2 + +/* Returns 1 if the given VCPU is up. */ +#define VCPUOP_is_up 3 + +/* + * Return information about the state and running time of a VCPU. + * @extra_arg == pointer to vcpu_runstate_info structure. + */ +#define VCPUOP_get_runstate_info 4 +struct vcpu_runstate_info { + /* VCPU's current state (RUNSTATE_*). */ + int state; + /* When was current state entered (system time, ns)? */ + uint64_t state_entry_time; + /* + * Time spent in each RUNSTATE_* (ns). The sum of these times is + * guaranteed not to drift from system time. + */ + uint64_t time[4]; +}; + +/* VCPU is currently running on a physical CPU. */ +#define RUNSTATE_running 0 + +/* VCPU is runnable, but not currently scheduled on any physical CPU. */ +#define RUNSTATE_runnable 1 + +/* VCPU is blocked (a.k.a. idle). It is therefore not runnable. */ +#define RUNSTATE_blocked 2 + +/* + * VCPU is not runnable, but it is not blocked. + * This is a 'catch all' state for things like hotplug and pauses by the + * system administrator (or for critical sections in the hypervisor). + * RUNSTATE_blocked dominates this state (it is the preferred state). + */ +#define RUNSTATE_offline 3 + +/* + * Register a shared memory area from which the guest may obtain its own + * runstate information without needing to execute a hypercall. + * Notes: + * 1. The registered address may be virtual or physical, depending on the + * platform. The virtual address should be registered on x86 systems. + * 2. Only one shared area may be registered per VCPU. The shared area is + * updated by the hypervisor each time the VCPU is scheduled. Thus + * runstate.state will always be RUNSTATE_running and + * runstate.state_entry_time will indicate the system time at which the + * VCPU was last scheduled to run. + * @extra_arg == pointer to vcpu_register_runstate_memory_area structure. + */ +#define VCPUOP_register_runstate_memory_area 5 +struct vcpu_register_runstate_memory_area { + union { + struct vcpu_runstate_info *v; + uint64_t p; + } addr; +}; + +/* + * Set or stop a VCPU's periodic timer. Every VCPU has one periodic timer + * which can be set via these commands. Periods smaller than one millisecond + * may not be supported. + */ +#define VCPUOP_set_periodic_timer 6 /* arg == vcpu_set_periodic_timer_t */ +#define VCPUOP_stop_periodic_timer 7 /* arg == NULL */ +struct vcpu_set_periodic_timer { + uint64_t period_ns; +}; + +/* + * Set or stop a VCPU's single-shot timer. Every VCPU has one single-shot + * timer which can be set via these commands. + */ +#define VCPUOP_set_singleshot_timer 8 /* arg == vcpu_set_singleshot_timer_t */ +#define VCPUOP_stop_singleshot_timer 9 /* arg == NULL */ +struct vcpu_set_singleshot_timer { + uint64_t timeout_abs_ns; + uint32_t flags; /* VCPU_SSHOTTMR_??? */ +}; + +/* Flags to VCPUOP_set_singleshot_timer. */ + /* Require the timeout to be in the future (return -ETIME if it's passed). */ +#define _VCPU_SSHOTTMR_future (0) +#define VCPU_SSHOTTMR_future (1U << _VCPU_SSHOTTMR_future) + +/* + * Register a memory location in the guest address space for the + * vcpu_info structure. This allows the guest to place the vcpu_info + * structure in a convenient place, such as in a per-cpu data area. + * The pointer need not be page aligned, but the structure must not + * cross a page boundary. + */ +#define VCPUOP_register_vcpu_info 10 /* arg == struct vcpu_info */ +struct vcpu_register_vcpu_info { + uint32_t mfn; /* mfn of page to place vcpu_info */ + uint32_t offset; /* offset within page */ +}; + +#endif /* __XEN_PUBLIC_VCPU_H__ */ diff --git a/include/xen/interface/version.h b/include/xen/interface/version.h new file mode 100644 index 000000000000..453235e923f0 --- /dev/null +++ b/include/xen/interface/version.h @@ -0,0 +1,60 @@ +/****************************************************************************** + * version.h + * + * Xen version, type, and compile information. + * + * Copyright (c) 2005, Nguyen Anh Quynh <aquynh@gmail.com> + * Copyright (c) 2005, Keir Fraser <keir@xensource.com> + */ + +#ifndef __XEN_PUBLIC_VERSION_H__ +#define __XEN_PUBLIC_VERSION_H__ + +/* NB. All ops return zero on success, except XENVER_version. */ + +/* arg == NULL; returns major:minor (16:16). */ +#define XENVER_version 0 + +/* arg == xen_extraversion_t. */ +#define XENVER_extraversion 1 +struct xen_extraversion { + char extraversion[16]; +}; +#define XEN_EXTRAVERSION_LEN (sizeof(struct xen_extraversion)) + +/* arg == xen_compile_info_t. */ +#define XENVER_compile_info 2 +struct xen_compile_info { + char compiler[64]; + char compile_by[16]; + char compile_domain[32]; + char compile_date[32]; +}; + +#define XENVER_capabilities 3 +struct xen_capabilities_info { + char info[1024]; +}; +#define XEN_CAPABILITIES_INFO_LEN (sizeof(struct xen_capabilities_info)) + +#define XENVER_changeset 4 +struct xen_changeset_info { + char info[64]; +}; +#define XEN_CHANGESET_INFO_LEN (sizeof(struct xen_changeset_info)) + +#define XENVER_platform_parameters 5 +struct xen_platform_parameters { + unsigned long virt_start; +}; + +#define XENVER_get_features 6 +struct xen_feature_info { + unsigned int submap_idx; /* IN: which 32-bit submap to return */ + uint32_t submap; /* OUT: 32-bit submap */ +}; + +/* Declares the features reported by XENVER_get_features. */ +#include "features.h" + +#endif /* __XEN_PUBLIC_VERSION_H__ */ diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h new file mode 100644 index 000000000000..518a5bf79ed3 --- /dev/null +++ b/include/xen/interface/xen.h @@ -0,0 +1,447 @@ +/****************************************************************************** + * xen.h + * + * Guest OS interface to Xen. + * + * Copyright (c) 2004, K A Fraser + */ + +#ifndef __XEN_PUBLIC_XEN_H__ +#define __XEN_PUBLIC_XEN_H__ + +#include <asm/xen/interface.h> + +/* + * XEN "SYSTEM CALLS" (a.k.a. HYPERCALLS). + */ + +/* + * x86_32: EAX = vector; EBX, ECX, EDX, ESI, EDI = args 1, 2, 3, 4, 5. + * EAX = return value + * (argument registers may be clobbered on return) + * x86_64: RAX = vector; RDI, RSI, RDX, R10, R8, R9 = args 1, 2, 3, 4, 5, 6. + * RAX = return value + * (argument registers not clobbered on return; RCX, R11 are) + */ +#define __HYPERVISOR_set_trap_table 0 +#define __HYPERVISOR_mmu_update 1 +#define __HYPERVISOR_set_gdt 2 +#define __HYPERVISOR_stack_switch 3 +#define __HYPERVISOR_set_callbacks 4 +#define __HYPERVISOR_fpu_taskswitch 5 +#define __HYPERVISOR_sched_op 6 +#define __HYPERVISOR_dom0_op 7 +#define __HYPERVISOR_set_debugreg 8 +#define __HYPERVISOR_get_debugreg 9 +#define __HYPERVISOR_update_descriptor 10 +#define __HYPERVISOR_memory_op 12 +#define __HYPERVISOR_multicall 13 +#define __HYPERVISOR_update_va_mapping 14 +#define __HYPERVISOR_set_timer_op 15 +#define __HYPERVISOR_event_channel_op_compat 16 +#define __HYPERVISOR_xen_version 17 +#define __HYPERVISOR_console_io 18 +#define __HYPERVISOR_physdev_op_compat 19 +#define __HYPERVISOR_grant_table_op 20 +#define __HYPERVISOR_vm_assist 21 +#define __HYPERVISOR_update_va_mapping_otherdomain 22 +#define __HYPERVISOR_iret 23 /* x86 only */ +#define __HYPERVISOR_vcpu_op 24 +#define __HYPERVISOR_set_segment_base 25 /* x86/64 only */ +#define __HYPERVISOR_mmuext_op 26 +#define __HYPERVISOR_acm_op 27 +#define __HYPERVISOR_nmi_op 28 +#define __HYPERVISOR_sched_op_new 29 +#define __HYPERVISOR_callback_op 30 +#define __HYPERVISOR_xenoprof_op 31 +#define __HYPERVISOR_event_channel_op 32 +#define __HYPERVISOR_physdev_op 33 +#define __HYPERVISOR_hvm_op 34 + +/* + * VIRTUAL INTERRUPTS + * + * Virtual interrupts that a guest OS may receive from Xen. + */ +#define VIRQ_TIMER 0 /* Timebase update, and/or requested timeout. */ +#define VIRQ_DEBUG 1 /* Request guest to dump debug info. */ +#define VIRQ_CONSOLE 2 /* (DOM0) Bytes received on emergency console. */ +#define VIRQ_DOM_EXC 3 /* (DOM0) Exceptional event for some domain. */ +#define VIRQ_DEBUGGER 6 /* (DOM0) A domain has paused for debugging. */ +#define NR_VIRQS 8 + +/* + * MMU-UPDATE REQUESTS + * + * HYPERVISOR_mmu_update() accepts a list of (ptr, val) pairs. + * A foreigndom (FD) can be specified (or DOMID_SELF for none). + * Where the FD has some effect, it is described below. + * ptr[1:0] specifies the appropriate MMU_* command. + * + * ptr[1:0] == MMU_NORMAL_PT_UPDATE: + * Updates an entry in a page table. If updating an L1 table, and the new + * table entry is valid/present, the mapped frame must belong to the FD, if + * an FD has been specified. If attempting to map an I/O page then the + * caller assumes the privilege of the FD. + * FD == DOMID_IO: Permit /only/ I/O mappings, at the priv level of the caller. + * FD == DOMID_XEN: Map restricted areas of Xen's heap space. + * ptr[:2] -- Machine address of the page-table entry to modify. + * val -- Value to write. + * + * ptr[1:0] == MMU_MACHPHYS_UPDATE: + * Updates an entry in the machine->pseudo-physical mapping table. + * ptr[:2] -- Machine address within the frame whose mapping to modify. + * The frame must belong to the FD, if one is specified. + * val -- Value to write into the mapping entry. + */ +#define MMU_NORMAL_PT_UPDATE 0 /* checked '*ptr = val'. ptr is MA. */ +#define MMU_MACHPHYS_UPDATE 1 /* ptr = MA of frame to modify entry for */ + +/* + * MMU EXTENDED OPERATIONS + * + * HYPERVISOR_mmuext_op() accepts a list of mmuext_op structures. + * A foreigndom (FD) can be specified (or DOMID_SELF for none). + * Where the FD has some effect, it is described below. + * + * cmd: MMUEXT_(UN)PIN_*_TABLE + * mfn: Machine frame number to be (un)pinned as a p.t. page. + * The frame must belong to the FD, if one is specified. + * + * cmd: MMUEXT_NEW_BASEPTR + * mfn: Machine frame number of new page-table base to install in MMU. + * + * cmd: MMUEXT_NEW_USER_BASEPTR [x86/64 only] + * mfn: Machine frame number of new page-table base to install in MMU + * when in user space. + * + * cmd: MMUEXT_TLB_FLUSH_LOCAL + * No additional arguments. Flushes local TLB. + * + * cmd: MMUEXT_INVLPG_LOCAL + * linear_addr: Linear address to be flushed from the local TLB. + * + * cmd: MMUEXT_TLB_FLUSH_MULTI + * vcpumask: Pointer to bitmap of VCPUs to be flushed. + * + * cmd: MMUEXT_INVLPG_MULTI + * linear_addr: Linear address to be flushed. + * vcpumask: Pointer to bitmap of VCPUs to be flushed. + * + * cmd: MMUEXT_TLB_FLUSH_ALL + * No additional arguments. Flushes all VCPUs' TLBs. + * + * cmd: MMUEXT_INVLPG_ALL + * linear_addr: Linear address to be flushed from all VCPUs' TLBs. + * + * cmd: MMUEXT_FLUSH_CACHE + * No additional arguments. Writes back and flushes cache contents. + * + * cmd: MMUEXT_SET_LDT + * linear_addr: Linear address of LDT base (NB. must be page-aligned). + * nr_ents: Number of entries in LDT. + */ +#define MMUEXT_PIN_L1_TABLE 0 +#define MMUEXT_PIN_L2_TABLE 1 +#define MMUEXT_PIN_L3_TABLE 2 +#define MMUEXT_PIN_L4_TABLE 3 +#define MMUEXT_UNPIN_TABLE 4 +#define MMUEXT_NEW_BASEPTR 5 +#define MMUEXT_TLB_FLUSH_LOCAL 6 +#define MMUEXT_INVLPG_LOCAL 7 +#define MMUEXT_TLB_FLUSH_MULTI 8 +#define MMUEXT_INVLPG_MULTI 9 +#define MMUEXT_TLB_FLUSH_ALL 10 +#define MMUEXT_INVLPG_ALL 11 +#define MMUEXT_FLUSH_CACHE 12 +#define MMUEXT_SET_LDT 13 +#define MMUEXT_NEW_USER_BASEPTR 15 + +#ifndef __ASSEMBLY__ +struct mmuext_op { + unsigned int cmd; + union { + /* [UN]PIN_TABLE, NEW_BASEPTR, NEW_USER_BASEPTR */ + unsigned long mfn; + /* INVLPG_LOCAL, INVLPG_ALL, SET_LDT */ + unsigned long linear_addr; + } arg1; + union { + /* SET_LDT */ + unsigned int nr_ents; + /* TLB_FLUSH_MULTI, INVLPG_MULTI */ + void *vcpumask; + } arg2; +}; +DEFINE_GUEST_HANDLE_STRUCT(mmuext_op); +#endif + +/* These are passed as 'flags' to update_va_mapping. They can be ORed. */ +/* When specifying UVMF_MULTI, also OR in a pointer to a CPU bitmap. */ +/* UVMF_LOCAL is merely UVMF_MULTI with a NULL bitmap pointer. */ +#define UVMF_NONE (0UL<<0) /* No flushing at all. */ +#define UVMF_TLB_FLUSH (1UL<<0) /* Flush entire TLB(s). */ +#define UVMF_INVLPG (2UL<<0) /* Flush only one entry. */ +#define UVMF_FLUSHTYPE_MASK (3UL<<0) +#define UVMF_MULTI (0UL<<2) /* Flush subset of TLBs. */ +#define UVMF_LOCAL (0UL<<2) /* Flush local TLB. */ +#define UVMF_ALL (1UL<<2) /* Flush all TLBs. */ + +/* + * Commands to HYPERVISOR_console_io(). + */ +#define CONSOLEIO_write 0 +#define CONSOLEIO_read 1 + +/* + * Commands to HYPERVISOR_vm_assist(). + */ +#define VMASST_CMD_enable 0 +#define VMASST_CMD_disable 1 +#define VMASST_TYPE_4gb_segments 0 +#define VMASST_TYPE_4gb_segments_notify 1 +#define VMASST_TYPE_writable_pagetables 2 +#define VMASST_TYPE_pae_extended_cr3 3 +#define MAX_VMASST_TYPE 3 + +#ifndef __ASSEMBLY__ + +typedef uint16_t domid_t; + +/* Domain ids >= DOMID_FIRST_RESERVED cannot be used for ordinary domains. */ +#define DOMID_FIRST_RESERVED (0x7FF0U) + +/* DOMID_SELF is used in certain contexts to refer to oneself. */ +#define DOMID_SELF (0x7FF0U) + +/* + * DOMID_IO is used to restrict page-table updates to mapping I/O memory. + * Although no Foreign Domain need be specified to map I/O pages, DOMID_IO + * is useful to ensure that no mappings to the OS's own heap are accidentally + * installed. (e.g., in Linux this could cause havoc as reference counts + * aren't adjusted on the I/O-mapping code path). + * This only makes sense in MMUEXT_SET_FOREIGNDOM, but in that context can + * be specified by any calling domain. + */ +#define DOMID_IO (0x7FF1U) + +/* + * DOMID_XEN is used to allow privileged domains to map restricted parts of + * Xen's heap space (e.g., the machine_to_phys table). + * This only makes sense in MMUEXT_SET_FOREIGNDOM, and is only permitted if + * the caller is privileged. + */ +#define DOMID_XEN (0x7FF2U) + +/* + * Send an array of these to HYPERVISOR_mmu_update(). + * NB. The fields are natural pointer/address size for this architecture. + */ +struct mmu_update { + uint64_t ptr; /* Machine address of PTE. */ + uint64_t val; /* New contents of PTE. */ +}; +DEFINE_GUEST_HANDLE_STRUCT(mmu_update); + +/* + * Send an array of these to HYPERVISOR_multicall(). + * NB. The fields are natural register size for this architecture. + */ +struct multicall_entry { + unsigned long op; + long result; + unsigned long args[6]; +}; +DEFINE_GUEST_HANDLE_STRUCT(multicall_entry); + +/* + * Event channel endpoints per domain: + * 1024 if a long is 32 bits; 4096 if a long is 64 bits. + */ +#define NR_EVENT_CHANNELS (sizeof(unsigned long) * sizeof(unsigned long) * 64) + +struct vcpu_time_info { + /* + * Updates to the following values are preceded and followed + * by an increment of 'version'. The guest can therefore + * detect updates by looking for changes to 'version'. If the + * least-significant bit of the version number is set then an + * update is in progress and the guest must wait to read a + * consistent set of values. The correct way to interact with + * the version number is similar to Linux's seqlock: see the + * implementations of read_seqbegin/read_seqretry. + */ + uint32_t version; + uint32_t pad0; + uint64_t tsc_timestamp; /* TSC at last update of time vals. */ + uint64_t system_time; /* Time, in nanosecs, since boot. */ + /* + * Current system time: + * system_time + ((tsc - tsc_timestamp) << tsc_shift) * tsc_to_system_mul + * CPU frequency (Hz): + * ((10^9 << 32) / tsc_to_system_mul) >> tsc_shift + */ + uint32_t tsc_to_system_mul; + int8_t tsc_shift; + int8_t pad1[3]; +}; /* 32 bytes */ + +struct vcpu_info { + /* + * 'evtchn_upcall_pending' is written non-zero by Xen to indicate + * a pending notification for a particular VCPU. It is then cleared + * by the guest OS /before/ checking for pending work, thus avoiding + * a set-and-check race. Note that the mask is only accessed by Xen + * on the CPU that is currently hosting the VCPU. This means that the + * pending and mask flags can be updated by the guest without special + * synchronisation (i.e., no need for the x86 LOCK prefix). + * This may seem suboptimal because if the pending flag is set by + * a different CPU then an IPI may be scheduled even when the mask + * is set. However, note: + * 1. The task of 'interrupt holdoff' is covered by the per-event- + * channel mask bits. A 'noisy' event that is continually being + * triggered can be masked at source at this very precise + * granularity. + * 2. The main purpose of the per-VCPU mask is therefore to restrict + * reentrant execution: whether for concurrency control, or to + * prevent unbounded stack usage. Whatever the purpose, we expect + * that the mask will be asserted only for short periods at a time, + * and so the likelihood of a 'spurious' IPI is suitably small. + * The mask is read before making an event upcall to the guest: a + * non-zero mask therefore guarantees that the VCPU will not receive + * an upcall activation. The mask is cleared when the VCPU requests + * to block: this avoids wakeup-waiting races. + */ + uint8_t evtchn_upcall_pending; + uint8_t evtchn_upcall_mask; + unsigned long evtchn_pending_sel; + struct arch_vcpu_info arch; + struct vcpu_time_info time; +}; /* 64 bytes (x86) */ + +/* + * Xen/kernel shared data -- pointer provided in start_info. + * NB. We expect that this struct is smaller than a page. + */ +struct shared_info { + struct vcpu_info vcpu_info[MAX_VIRT_CPUS]; + + /* + * A domain can create "event channels" on which it can send and receive + * asynchronous event notifications. There are three classes of event that + * are delivered by this mechanism: + * 1. Bi-directional inter- and intra-domain connections. Domains must + * arrange out-of-band to set up a connection (usually by allocating + * an unbound 'listener' port and avertising that via a storage service + * such as xenstore). + * 2. Physical interrupts. A domain with suitable hardware-access + * privileges can bind an event-channel port to a physical interrupt + * source. + * 3. Virtual interrupts ('events'). A domain can bind an event-channel + * port to a virtual interrupt source, such as the virtual-timer + * device or the emergency console. + * + * Event channels are addressed by a "port index". Each channel is + * associated with two bits of information: + * 1. PENDING -- notifies the domain that there is a pending notification + * to be processed. This bit is cleared by the guest. + * 2. MASK -- if this bit is clear then a 0->1 transition of PENDING + * will cause an asynchronous upcall to be scheduled. This bit is only + * updated by the guest. It is read-only within Xen. If a channel + * becomes pending while the channel is masked then the 'edge' is lost + * (i.e., when the channel is unmasked, the guest must manually handle + * pending notifications as no upcall will be scheduled by Xen). + * + * To expedite scanning of pending notifications, any 0->1 pending + * transition on an unmasked channel causes a corresponding bit in a + * per-vcpu selector word to be set. Each bit in the selector covers a + * 'C long' in the PENDING bitfield array. + */ + unsigned long evtchn_pending[sizeof(unsigned long) * 8]; + unsigned long evtchn_mask[sizeof(unsigned long) * 8]; + + /* + * Wallclock time: updated only by control software. Guests should base + * their gettimeofday() syscall on this wallclock-base value. + */ + uint32_t wc_version; /* Version counter: see vcpu_time_info_t. */ + uint32_t wc_sec; /* Secs 00:00:00 UTC, Jan 1, 1970. */ + uint32_t wc_nsec; /* Nsecs 00:00:00 UTC, Jan 1, 1970. */ + + struct arch_shared_info arch; + +}; + +/* + * Start-of-day memory layout for the initial domain (DOM0): + * 1. The domain is started within contiguous virtual-memory region. + * 2. The contiguous region begins and ends on an aligned 4MB boundary. + * 3. The region start corresponds to the load address of the OS image. + * If the load address is not 4MB aligned then the address is rounded down. + * 4. This the order of bootstrap elements in the initial virtual region: + * a. relocated kernel image + * b. initial ram disk [mod_start, mod_len] + * c. list of allocated page frames [mfn_list, nr_pages] + * d. start_info_t structure [register ESI (x86)] + * e. bootstrap page tables [pt_base, CR3 (x86)] + * f. bootstrap stack [register ESP (x86)] + * 5. Bootstrap elements are packed together, but each is 4kB-aligned. + * 6. The initial ram disk may be omitted. + * 7. The list of page frames forms a contiguous 'pseudo-physical' memory + * layout for the domain. In particular, the bootstrap virtual-memory + * region is a 1:1 mapping to the first section of the pseudo-physical map. + * 8. All bootstrap elements are mapped read-writable for the guest OS. The + * only exception is the bootstrap page table, which is mapped read-only. + * 9. There is guaranteed to be at least 512kB padding after the final + * bootstrap element. If necessary, the bootstrap virtual region is + * extended by an extra 4MB to ensure this. + */ + +#define MAX_GUEST_CMDLINE 1024 +struct start_info { + /* THE FOLLOWING ARE FILLED IN BOTH ON INITIAL BOOT AND ON RESUME. */ + char magic[32]; /* "xen-<version>-<platform>". */ + unsigned long nr_pages; /* Total pages allocated to this domain. */ + unsigned long shared_info; /* MACHINE address of shared info struct. */ + uint32_t flags; /* SIF_xxx flags. */ + unsigned long store_mfn; /* MACHINE page number of shared page. */ + uint32_t store_evtchn; /* Event channel for store communication. */ + union { + struct { + unsigned long mfn; /* MACHINE page number of console page. */ + uint32_t evtchn; /* Event channel for console page. */ + } domU; + struct { + uint32_t info_off; /* Offset of console_info struct. */ + uint32_t info_size; /* Size of console_info struct from start.*/ + } dom0; + } console; + /* THE FOLLOWING ARE ONLY FILLED IN ON INITIAL BOOT (NOT RESUME). */ + unsigned long pt_base; /* VIRTUAL address of page directory. */ + unsigned long nr_pt_frames; /* Number of bootstrap p.t. frames. */ + unsigned long mfn_list; /* VIRTUAL address of page-frame list. */ + unsigned long mod_start; /* VIRTUAL address of pre-loaded module. */ + unsigned long mod_len; /* Size (bytes) of pre-loaded module. */ + int8_t cmd_line[MAX_GUEST_CMDLINE]; +}; + +/* These flags are passed in the 'flags' field of start_info_t. */ +#define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */ +#define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */ + +typedef uint64_t cpumap_t; + +typedef uint8_t xen_domain_handle_t[16]; + +/* Turn a plain number into a C unsigned long constant. */ +#define __mk_unsigned_long(x) x ## UL +#define mk_unsigned_long(x) __mk_unsigned_long(x) + +#else /* __ASSEMBLY__ */ + +/* In assembly code we cannot use C numeric constant suffixes. */ +#define mk_unsigned_long(x) x + +#endif /* !__ASSEMBLY__ */ + +#endif /* __XEN_PUBLIC_XEN_H__ */ diff --git a/include/xen/page.h b/include/xen/page.h new file mode 100644 index 000000000000..1df6c1930578 --- /dev/null +++ b/include/xen/page.h @@ -0,0 +1,179 @@ +#ifndef __XEN_PAGE_H +#define __XEN_PAGE_H + +#include <linux/pfn.h> + +#include <asm/uaccess.h> + +#include <xen/features.h> + +#ifdef CONFIG_X86_PAE +/* Xen machine address */ +typedef struct xmaddr { + unsigned long long maddr; +} xmaddr_t; + +/* Xen pseudo-physical address */ +typedef struct xpaddr { + unsigned long long paddr; +} xpaddr_t; +#else +/* Xen machine address */ +typedef struct xmaddr { + unsigned long maddr; +} xmaddr_t; + +/* Xen pseudo-physical address */ +typedef struct xpaddr { + unsigned long paddr; +} xpaddr_t; +#endif + +#define XMADDR(x) ((xmaddr_t) { .maddr = (x) }) +#define XPADDR(x) ((xpaddr_t) { .paddr = (x) }) + +/**** MACHINE <-> PHYSICAL CONVERSION MACROS ****/ +#define INVALID_P2M_ENTRY (~0UL) +#define FOREIGN_FRAME_BIT (1UL<<31) +#define FOREIGN_FRAME(m) ((m) | FOREIGN_FRAME_BIT) + +extern unsigned long *phys_to_machine_mapping; + +static inline unsigned long pfn_to_mfn(unsigned long pfn) +{ + if (xen_feature(XENFEAT_auto_translated_physmap)) + return pfn; + + return phys_to_machine_mapping[(unsigned int)(pfn)] & + ~FOREIGN_FRAME_BIT; +} + +static inline int phys_to_machine_mapping_valid(unsigned long pfn) +{ + if (xen_feature(XENFEAT_auto_translated_physmap)) + return 1; + + return (phys_to_machine_mapping[pfn] != INVALID_P2M_ENTRY); +} + +static inline unsigned long mfn_to_pfn(unsigned long mfn) +{ + unsigned long pfn; + + if (xen_feature(XENFEAT_auto_translated_physmap)) + return mfn; + +#if 0 + if (unlikely((mfn >> machine_to_phys_order) != 0)) + return max_mapnr; +#endif + + pfn = 0; + /* + * The array access can fail (e.g., device space beyond end of RAM). + * In such cases it doesn't matter what we return (we return garbage), + * but we must handle the fault without crashing! + */ + __get_user(pfn, &machine_to_phys_mapping[mfn]); + + return pfn; +} + +static inline xmaddr_t phys_to_machine(xpaddr_t phys) +{ + unsigned offset = phys.paddr & ~PAGE_MASK; + return XMADDR(PFN_PHYS((u64)pfn_to_mfn(PFN_DOWN(phys.paddr))) | offset); +} + +static inline xpaddr_t machine_to_phys(xmaddr_t machine) +{ + unsigned offset = machine.maddr & ~PAGE_MASK; + return XPADDR(PFN_PHYS((u64)mfn_to_pfn(PFN_DOWN(machine.maddr))) | offset); +} + +/* + * We detect special mappings in one of two ways: + * 1. If the MFN is an I/O page then Xen will set the m2p entry + * to be outside our maximum possible pseudophys range. + * 2. If the MFN belongs to a different domain then we will certainly + * not have MFN in our p2m table. Conversely, if the page is ours, + * then we'll have p2m(m2p(MFN))==MFN. + * If we detect a special mapping then it doesn't have a 'struct page'. + * We force !pfn_valid() by returning an out-of-range pointer. + * + * NB. These checks require that, for any MFN that is not in our reservation, + * there is no PFN such that p2m(PFN) == MFN. Otherwise we can get confused if + * we are foreign-mapping the MFN, and the other domain as m2p(MFN) == PFN. + * Yikes! Various places must poke in INVALID_P2M_ENTRY for safety. + * + * NB2. When deliberately mapping foreign pages into the p2m table, you *must* + * use FOREIGN_FRAME(). This will cause pte_pfn() to choke on it, as we + * require. In all the cases we care about, the FOREIGN_FRAME bit is + * masked (e.g., pfn_to_mfn()) so behaviour there is correct. + */ +static inline unsigned long mfn_to_local_pfn(unsigned long mfn) +{ + extern unsigned long max_mapnr; + unsigned long pfn = mfn_to_pfn(mfn); + if ((pfn < max_mapnr) + && !xen_feature(XENFEAT_auto_translated_physmap) + && (phys_to_machine_mapping[pfn] != mfn)) + return max_mapnr; /* force !pfn_valid() */ + return pfn; +} + +static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn) +{ + if (xen_feature(XENFEAT_auto_translated_physmap)) { + BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY); + return; + } + phys_to_machine_mapping[pfn] = mfn; +} + +/* VIRT <-> MACHINE conversion */ +#define virt_to_machine(v) (phys_to_machine(XPADDR(__pa(v)))) +#define virt_to_mfn(v) (pfn_to_mfn(PFN_DOWN(__pa(v)))) +#define mfn_to_virt(m) (__va(mfn_to_pfn(m) << PAGE_SHIFT)) + +#ifdef CONFIG_X86_PAE +#define pte_mfn(_pte) (((_pte).pte_low >> PAGE_SHIFT) | \ + (((_pte).pte_high & 0xfff) << (32-PAGE_SHIFT))) + +static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot) +{ + pte_t pte; + + pte.pte_high = (page_nr >> (32 - PAGE_SHIFT)) | + (pgprot_val(pgprot) >> 32); + pte.pte_high &= (__supported_pte_mask >> 32); + pte.pte_low = ((page_nr << PAGE_SHIFT) | pgprot_val(pgprot)); + pte.pte_low &= __supported_pte_mask; + + return pte; +} + +static inline unsigned long long pte_val_ma(pte_t x) +{ + return ((unsigned long long)x.pte_high << 32) | x.pte_low; +} +#define pmd_val_ma(v) ((v).pmd) +#define pud_val_ma(v) ((v).pgd.pgd) +#define __pte_ma(x) ((pte_t) { .pte_low = (x), .pte_high = (x)>>32 } ) +#define __pmd_ma(x) ((pmd_t) { (x) } ) +#else /* !X86_PAE */ +#define pte_mfn(_pte) ((_pte).pte_low >> PAGE_SHIFT) +#define mfn_pte(pfn, prot) __pte_ma(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) +#define pte_val_ma(x) ((x).pte_low) +#define pmd_val_ma(v) ((v).pud.pgd.pgd) +#define __pte_ma(x) ((pte_t) { (x) } ) +#endif /* CONFIG_X86_PAE */ + +#define pgd_val_ma(x) ((x).pgd) + + +xmaddr_t arbitrary_virt_to_machine(unsigned long address); +void make_lowmem_page_readonly(void *vaddr); +void make_lowmem_page_readwrite(void *vaddr); + +#endif /* __XEN_PAGE_H */ diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h new file mode 100644 index 000000000000..6f7c290651ae --- /dev/null +++ b/include/xen/xenbus.h @@ -0,0 +1,234 @@ +/****************************************************************************** + * xenbus.h + * + * Talks to Xen Store to figure out what devices we have. + * + * Copyright (C) 2005 Rusty Russell, IBM Corporation + * Copyright (C) 2005 XenSource Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef _XEN_XENBUS_H +#define _XEN_XENBUS_H + +#include <linux/device.h> +#include <linux/notifier.h> +#include <linux/mutex.h> +#include <linux/completion.h> +#include <linux/init.h> +#include <xen/interface/xen.h> +#include <xen/interface/grant_table.h> +#include <xen/interface/io/xenbus.h> +#include <xen/interface/io/xs_wire.h> + +/* Register callback to watch this node. */ +struct xenbus_watch +{ + struct list_head list; + + /* Path being watched. */ + const char *node; + + /* Callback (executed in a process context with no locks held). */ + void (*callback)(struct xenbus_watch *, + const char **vec, unsigned int len); +}; + + +/* A xenbus device. */ +struct xenbus_device { + const char *devicetype; + const char *nodename; + const char *otherend; + int otherend_id; + struct xenbus_watch otherend_watch; + struct device dev; + enum xenbus_state state; + struct completion down; +}; + +static inline struct xenbus_device *to_xenbus_device(struct device *dev) +{ + return container_of(dev, struct xenbus_device, dev); +} + +struct xenbus_device_id +{ + /* .../device/<device_type>/<identifier> */ + char devicetype[32]; /* General class of device. */ +}; + +/* A xenbus driver. */ +struct xenbus_driver { + char *name; + struct module *owner; + const struct xenbus_device_id *ids; + int (*probe)(struct xenbus_device *dev, + const struct xenbus_device_id *id); + void (*otherend_changed)(struct xenbus_device *dev, + enum xenbus_state backend_state); + int (*remove)(struct xenbus_device *dev); + int (*suspend)(struct xenbus_device *dev); + int (*suspend_cancel)(struct xenbus_device *dev); + int (*resume)(struct xenbus_device *dev); + int (*uevent)(struct xenbus_device *, char **, int, char *, int); + struct device_driver driver; + int (*read_otherend_details)(struct xenbus_device *dev); +}; + +static inline struct xenbus_driver *to_xenbus_driver(struct device_driver *drv) +{ + return container_of(drv, struct xenbus_driver, driver); +} + +int __must_check __xenbus_register_frontend(struct xenbus_driver *drv, + struct module *owner, + const char *mod_name); + +static inline int __must_check +xenbus_register_frontend(struct xenbus_driver *drv) +{ + WARN_ON(drv->owner != THIS_MODULE); + return __xenbus_register_frontend(drv, THIS_MODULE, KBUILD_MODNAME); +} + +int __must_check __xenbus_register_backend(struct xenbus_driver *drv, + struct module *owner, + const char *mod_name); +static inline int __must_check +xenbus_register_backend(struct xenbus_driver *drv) +{ + WARN_ON(drv->owner != THIS_MODULE); + return __xenbus_register_backend(drv, THIS_MODULE, KBUILD_MODNAME); +} + +void xenbus_unregister_driver(struct xenbus_driver *drv); + +struct xenbus_transaction +{ + u32 id; +}; + +/* Nil transaction ID. */ +#define XBT_NIL ((struct xenbus_transaction) { 0 }) + +int __init xenbus_dev_init(void); + +char **xenbus_directory(struct xenbus_transaction t, + const char *dir, const char *node, unsigned int *num); +void *xenbus_read(struct xenbus_transaction t, + const char *dir, const char *node, unsigned int *len); +int xenbus_write(struct xenbus_transaction t, + const char *dir, const char *node, const char *string); +int xenbus_mkdir(struct xenbus_transaction t, + const char *dir, const char *node); +int xenbus_exists(struct xenbus_transaction t, + const char *dir, const char *node); +int xenbus_rm(struct xenbus_transaction t, const char *dir, const char *node); +int xenbus_transaction_start(struct xenbus_transaction *t); +int xenbus_transaction_end(struct xenbus_transaction t, int abort); + +/* Single read and scanf: returns -errno or num scanned if > 0. */ +int xenbus_scanf(struct xenbus_transaction t, + const char *dir, const char *node, const char *fmt, ...) + __attribute__((format(scanf, 4, 5))); + +/* Single printf and write: returns -errno or 0. */ +int xenbus_printf(struct xenbus_transaction t, + const char *dir, const char *node, const char *fmt, ...) + __attribute__((format(printf, 4, 5))); + +/* Generic read function: NULL-terminated triples of name, + * sprintf-style type string, and pointer. Returns 0 or errno.*/ +int xenbus_gather(struct xenbus_transaction t, const char *dir, ...); + +/* notifer routines for when the xenstore comes up */ +extern int xenstored_ready; +int register_xenstore_notifier(struct notifier_block *nb); +void unregister_xenstore_notifier(struct notifier_block *nb); + +int register_xenbus_watch(struct xenbus_watch *watch); +void unregister_xenbus_watch(struct xenbus_watch *watch); +void xs_suspend(void); +void xs_resume(void); +void xs_suspend_cancel(void); + +/* Used by xenbus_dev to borrow kernel's store connection. */ +void *xenbus_dev_request_and_reply(struct xsd_sockmsg *msg); + +struct work_struct; + +/* Prepare for domain suspend: then resume or cancel the suspend. */ +void xenbus_suspend(void); +void xenbus_resume(void); +void xenbus_probe(struct work_struct *); +void xenbus_suspend_cancel(void); + +#define XENBUS_IS_ERR_READ(str) ({ \ + if (!IS_ERR(str) && strlen(str) == 0) { \ + kfree(str); \ + str = ERR_PTR(-ERANGE); \ + } \ + IS_ERR(str); \ +}) + +#define XENBUS_EXIST_ERR(err) ((err) == -ENOENT || (err) == -ERANGE) + +int xenbus_watch_path(struct xenbus_device *dev, const char *path, + struct xenbus_watch *watch, + void (*callback)(struct xenbus_watch *, + const char **, unsigned int)); +int xenbus_watch_pathfmt(struct xenbus_device *dev, struct xenbus_watch *watch, + void (*callback)(struct xenbus_watch *, + const char **, unsigned int), + const char *pathfmt, ...) + __attribute__ ((format (printf, 4, 5))); + +int xenbus_switch_state(struct xenbus_device *dev, enum xenbus_state new_state); +int xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn); +int xenbus_map_ring_valloc(struct xenbus_device *dev, + int gnt_ref, void **vaddr); +int xenbus_map_ring(struct xenbus_device *dev, int gnt_ref, + grant_handle_t *handle, void *vaddr); + +int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr); +int xenbus_unmap_ring(struct xenbus_device *dev, + grant_handle_t handle, void *vaddr); + +int xenbus_alloc_evtchn(struct xenbus_device *dev, int *port); +int xenbus_bind_evtchn(struct xenbus_device *dev, int remote_port, int *port); +int xenbus_free_evtchn(struct xenbus_device *dev, int port); + +enum xenbus_state xenbus_read_driver_state(const char *path); + +void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...); +void xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt, ...); + +const char *xenbus_strstate(enum xenbus_state state); +int xenbus_dev_is_online(struct xenbus_device *dev); +int xenbus_frontend_closed(struct xenbus_device *dev); + +#endif /* _XEN_XENBUS_H */ diff --git a/init/Kconfig b/init/Kconfig index 0b0e29ed82d1..e2056828dc64 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -546,7 +546,7 @@ config SLUB_DEBUG choice prompt "Choose SLAB allocator" - default SLAB + default SLUB help This option allows to select a slab allocator. diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index b222ce9e1c8b..a6b4c0c08e13 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -56,12 +56,9 @@ static void __init handle_initrd(void) sys_chroot("."); pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD); - if (pid > 0) { - while (pid != sys_wait4(-1, NULL, 0, NULL)) { - try_to_freeze(); + if (pid > 0) + while (pid != sys_wait4(-1, NULL, 0, NULL)) yield(); - } - } /* move initrd to rootfs' /old */ sys_fchdir(old_fd); diff --git a/ipc/msg.c b/ipc/msg.c index cbd27e519943..a03fcb522fff 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -385,7 +385,7 @@ copy_msqid_from_user(struct msq_setbuf *out, void __user *buf, int version) asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf) { struct kern_ipc_perm *ipcp; - struct msq_setbuf setbuf; + struct msq_setbuf uninitialized_var(setbuf); struct msg_queue *msq; int err, version; struct ipc_namespace *ns; @@ -509,7 +509,7 @@ asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf) err = audit_ipc_obj(ipcp); if (err) goto out_unlock_up; - if (cmd==IPC_SET) { + if (cmd == IPC_SET) { err = audit_ipc_set_perm(setbuf.qbytes, setbuf.uid, setbuf.gid, setbuf.mode); if (err) diff --git a/ipc/sem.c b/ipc/sem.c index 89bfdffb38d8..b676fef6d208 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -856,7 +856,7 @@ static int semctl_down(struct ipc_namespace *ns, int semid, int semnum, { struct sem_array *sma; int err; - struct sem_setbuf setbuf; + struct sem_setbuf uninitialized_var(setbuf); struct kern_ipc_perm *ipcp; if(cmd == IPC_SET) { diff --git a/ipc/shm.c b/ipc/shm.c index 242c3f66493a..d0259e3ad1c0 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -224,13 +224,12 @@ static void shm_close(struct vm_area_struct *vma) mutex_unlock(&shm_ids(ns).mutex); } -static struct page *shm_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static int shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct file *file = vma->vm_file; struct shm_file_data *sfd = shm_file_data(file); - return sfd->vm_ops->nopage(vma, address, type); + return sfd->vm_ops->fault(vma, vmf); } #ifdef CONFIG_NUMA @@ -269,6 +268,7 @@ static int shm_mmap(struct file * file, struct vm_area_struct * vma) if (ret != 0) return ret; sfd->vm_ops = vma->vm_ops; + BUG_ON(!sfd->vm_ops->fault); vma->vm_ops = &shm_vm_ops; shm_open(vma); @@ -327,7 +327,7 @@ static const struct file_operations shm_file_operations = { static struct vm_operations_struct shm_vm_ops = { .open = shm_open, /* callback for a new vm-area open */ .close = shm_close, /* callback for when the vm-area is released */ - .nopage = shm_nopage, + .fault = shm_fault, #if defined(CONFIG_NUMA) .set_policy = shm_set_policy, .get_policy = shm_get_policy, diff --git a/kernel/audit.c b/kernel/audit.c index 5ce8851facf7..eb0f9165b401 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -392,6 +392,7 @@ static int kauditd_thread(void *dummy) { struct sk_buff *skb; + set_freezable(); while (!kthread_should_stop()) { skb = skb_dequeue(&audit_skb_queue); wake_up(&audit_backlog_wait); diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index ce61f423542c..1bf093dcffe0 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -1210,8 +1210,8 @@ static inline int audit_add_rule(struct audit_entry *entry, struct audit_entry *e; struct audit_field *inode_f = entry->rule.inode_f; struct audit_watch *watch = entry->rule.watch; - struct nameidata *ndp, *ndw; - int h, err, putnd_needed = 0; + struct nameidata *ndp = NULL, *ndw = NULL; + int h, err; #ifdef CONFIG_AUDITSYSCALL int dont_count = 0; @@ -1239,7 +1239,6 @@ static inline int audit_add_rule(struct audit_entry *entry, err = audit_get_nd(watch->path, &ndp, &ndw); if (err) goto error; - putnd_needed = 1; } mutex_lock(&audit_filter_mutex); @@ -1269,14 +1268,11 @@ static inline int audit_add_rule(struct audit_entry *entry, #endif mutex_unlock(&audit_filter_mutex); - if (putnd_needed) - audit_put_nd(ndp, ndw); - + audit_put_nd(ndp, ndw); /* NULL args OK */ return 0; error: - if (putnd_needed) - audit_put_nd(ndp, ndw); + audit_put_nd(ndp, ndw); /* NULL args OK */ if (watch) audit_put_watch(watch); /* tmp watch, matches initial get */ return err; diff --git a/kernel/auditsc.c b/kernel/auditsc.c index b7640a5f382a..145cbb79c4b9 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -153,7 +153,7 @@ struct audit_aux_data_execve { struct audit_aux_data d; int argc; int envc; - char mem[0]; + struct mm_struct *mm; }; struct audit_aux_data_socketcall { @@ -831,6 +831,55 @@ static int audit_log_pid_context(struct audit_context *context, pid_t pid, return rc; } +static void audit_log_execve_info(struct audit_buffer *ab, + struct audit_aux_data_execve *axi) +{ + int i; + long len, ret; + const char __user *p = (const char __user *)axi->mm->arg_start; + char *buf; + + if (axi->mm != current->mm) + return; /* execve failed, no additional info */ + + for (i = 0; i < axi->argc; i++, p += len) { + len = strnlen_user(p, MAX_ARG_STRLEN); + /* + * We just created this mm, if we can't find the strings + * we just copied into it something is _very_ wrong. Similar + * for strings that are too long, we should not have created + * any. + */ + if (!len || len > MAX_ARG_STRLEN) { + WARN_ON(1); + send_sig(SIGKILL, current, 0); + } + + buf = kmalloc(len, GFP_KERNEL); + if (!buf) { + audit_panic("out of memory for argv string\n"); + break; + } + + ret = copy_from_user(buf, p, len); + /* + * There is no reason for this copy to be short. We just + * copied them here, and the mm hasn't been exposed to user- + * space yet. + */ + if (!ret) { + WARN_ON(1); + send_sig(SIGKILL, current, 0); + } + + audit_log_format(ab, "a%d=", i); + audit_log_untrustedstring(ab, buf); + audit_log_format(ab, "\n"); + + kfree(buf); + } +} + static void audit_log_exit(struct audit_context *context, struct task_struct *tsk) { int i, call_panic = 0; @@ -971,13 +1020,7 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts case AUDIT_EXECVE: { struct audit_aux_data_execve *axi = (void *)aux; - int i; - const char *p; - for (i = 0, p = axi->mem; i < axi->argc; i++) { - audit_log_format(ab, "a%d=", i); - p = audit_log_untrustedstring(ab, p); - audit_log_format(ab, "\n"); - } + audit_log_execve_info(ab, axi); break; } case AUDIT_SOCKETCALL: { @@ -1821,32 +1864,31 @@ int __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode return 0; } +int audit_argv_kb = 32; + int audit_bprm(struct linux_binprm *bprm) { struct audit_aux_data_execve *ax; struct audit_context *context = current->audit_context; - unsigned long p, next; - void *to; if (likely(!audit_enabled || !context || context->dummy)) return 0; - ax = kmalloc(sizeof(*ax) + PAGE_SIZE * MAX_ARG_PAGES - bprm->p, - GFP_KERNEL); + /* + * Even though the stack code doesn't limit the arg+env size any more, + * the audit code requires that _all_ arguments be logged in a single + * netlink skb. Hence cap it :-( + */ + if (bprm->argv_len > (audit_argv_kb << 10)) + return -E2BIG; + + ax = kmalloc(sizeof(*ax), GFP_KERNEL); if (!ax) return -ENOMEM; ax->argc = bprm->argc; ax->envc = bprm->envc; - for (p = bprm->p, to = ax->mem; p < MAX_ARG_PAGES*PAGE_SIZE; p = next) { - struct page *page = bprm->page[p / PAGE_SIZE]; - void *kaddr = kmap(page); - next = (p + PAGE_SIZE) & ~(PAGE_SIZE - 1); - memcpy(to, kaddr + (p & (PAGE_SIZE - 1)), next - p); - to += next - p; - kunmap(page); - } - + ax->mm = bprm->mm; ax->d.type = AUDIT_EXECVE; ax->d.next = context->aux; context->aux = (void *)ax; diff --git a/kernel/cpu.c b/kernel/cpu.c index 208cf3497c10..181ae7086029 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -103,11 +103,19 @@ static inline void check_for_tasks(int cpu) write_unlock_irq(&tasklist_lock); } +struct take_cpu_down_param { + unsigned long mod; + void *hcpu; +}; + /* Take this CPU down. */ -static int take_cpu_down(void *unused) +static int take_cpu_down(void *_param) { + struct take_cpu_down_param *param = _param; int err; + raw_notifier_call_chain(&cpu_chain, CPU_DYING | param->mod, + param->hcpu); /* Ensure this CPU doesn't handle any more interrupts. */ err = __cpu_disable(); if (err < 0) @@ -127,6 +135,10 @@ static int _cpu_down(unsigned int cpu, int tasks_frozen) cpumask_t old_allowed, tmp; void *hcpu = (void *)(long)cpu; unsigned long mod = tasks_frozen ? CPU_TASKS_FROZEN : 0; + struct take_cpu_down_param tcd_param = { + .mod = mod, + .hcpu = hcpu, + }; if (num_online_cpus() == 1) return -EBUSY; @@ -153,7 +165,7 @@ static int _cpu_down(unsigned int cpu, int tasks_frozen) set_cpus_allowed(current, tmp); mutex_lock(&cpu_bitmask_lock); - p = __stop_machine_run(take_cpu_down, NULL, cpu); + p = __stop_machine_run(take_cpu_down, &tcd_param, cpu); mutex_unlock(&cpu_bitmask_lock); if (IS_ERR(p) || cpu_online(cpu)) { diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 824b1c01f410..57e6448b171e 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -516,7 +516,7 @@ static void cpuset_release_agent(const char *pathbuf) envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; envp[i] = NULL; - call_usermodehelper(argv[0], argv, envp, 0); + call_usermodehelper(argv[0], argv, envp, UMH_WAIT_EXEC); kfree(pathbuf); } @@ -2138,6 +2138,9 @@ static void common_cpu_mem_hotplug_unplug(void) static int cpuset_handle_cpuhp(struct notifier_block *nb, unsigned long phase, void *cpu) { + if (phase == CPU_DYING || phase == CPU_DYING_FROZEN) + return NOTIFY_DONE; + common_cpu_mem_hotplug_unplug(); return 0; } diff --git a/kernel/exit.c b/kernel/exit.c index 57626692cd90..464c2b172f07 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -31,6 +31,7 @@ #include <linux/mempolicy.h> #include <linux/taskstats_kern.h> #include <linux/delayacct.h> +#include <linux/freezer.h> #include <linux/cpuset.h> #include <linux/syscalls.h> #include <linux/signal.h> @@ -44,6 +45,7 @@ #include <linux/resource.h> #include <linux/blkdev.h> #include <linux/task_io_accounting_ops.h> +#include <linux/freezer.h> #include <asm/uaccess.h> #include <asm/unistd.h> @@ -387,6 +389,11 @@ void daemonize(const char *name, ...) * they would be locked into memory. */ exit_mm(current); + /* + * We don't want to have TIF_FREEZE set if the system-wide hibernation + * or suspend transition begins right now. + */ + current->flags |= PF_NOFREEZE; set_special_pids(1, 1); proc_clear_tty(current); @@ -588,6 +595,8 @@ static void exit_mm(struct task_struct * tsk) tsk->mm = NULL; up_read(&mm->mmap_sem); enter_lazy_tlb(mm, current); + /* We don't want this task to be frozen prematurely */ + clear_freeze_flag(tsk); task_unlock(tsk); mmput(mm); } diff --git a/kernel/fork.c b/kernel/fork.c index 7c5c5888e00a..469838998220 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -334,6 +334,8 @@ static struct mm_struct * mm_init(struct mm_struct * mm) atomic_set(&mm->mm_count, 1); init_rwsem(&mm->mmap_sem); INIT_LIST_HEAD(&mm->mmlist); + mm->flags = (current->mm) ? current->mm->flags + : MMF_DUMP_FILTER_DEFAULT; mm->core_waiters = 0; mm->nr_ptes = 0; set_mm_counter(mm, file_rss, 0); @@ -923,7 +925,7 @@ static inline void copy_flags(unsigned long clone_flags, struct task_struct *p) { unsigned long new_flags = p->flags; - new_flags &= ~(PF_SUPERPRIV | PF_NOFREEZE); + new_flags &= ~PF_SUPERPRIV; new_flags |= PF_FORKNOEXEC; if (!(clone_flags & CLONE_PTRACE)) p->ptrace = 0; diff --git a/kernel/futex.c b/kernel/futex.c index 5c3f45d07c53..a12425051ee9 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -346,15 +346,20 @@ static int futex_handle_fault(unsigned long address, vma = find_vma(mm, address); if (vma && address >= vma->vm_start && (vma->vm_flags & VM_WRITE)) { - switch (handle_mm_fault(mm, vma, address, 1)) { - case VM_FAULT_MINOR: - ret = 0; - current->min_flt++; - break; - case VM_FAULT_MAJOR: + int fault; + fault = handle_mm_fault(mm, vma, address, 1); + if (unlikely((fault & VM_FAULT_ERROR))) { +#if 0 + /* XXX: let's do this when we verify it is OK */ + if (ret & VM_FAULT_OOM) + ret = -ENOMEM; +#endif + } else { ret = 0; - current->maj_flt++; - break; + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; } } if (!fshared) diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index 0d662475dd9f..474219a41929 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -152,7 +152,7 @@ static unsigned int get_symbol_offset(unsigned long pos) /* Lookup the address for this symbol. Returns 0 if not found. */ unsigned long kallsyms_lookup_name(const char *name) { - char namebuf[KSYM_NAME_LEN+1]; + char namebuf[KSYM_NAME_LEN]; unsigned long i; unsigned int off; @@ -248,7 +248,7 @@ const char *kallsyms_lookup(unsigned long addr, { const char *msym; - namebuf[KSYM_NAME_LEN] = 0; + namebuf[KSYM_NAME_LEN - 1] = 0; namebuf[0] = 0; if (is_ksym_addr(addr)) { @@ -265,7 +265,7 @@ const char *kallsyms_lookup(unsigned long addr, /* see if it's in a module */ msym = module_address_lookup(addr, symbolsize, offset, modname); if (msym) - return strncpy(namebuf, msym, KSYM_NAME_LEN); + return strncpy(namebuf, msym, KSYM_NAME_LEN - 1); return NULL; } @@ -273,7 +273,7 @@ const char *kallsyms_lookup(unsigned long addr, int lookup_symbol_name(unsigned long addr, char *symname) { symname[0] = '\0'; - symname[KSYM_NAME_LEN] = '\0'; + symname[KSYM_NAME_LEN - 1] = '\0'; if (is_ksym_addr(addr)) { unsigned long pos; @@ -291,7 +291,7 @@ int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name) { name[0] = '\0'; - name[KSYM_NAME_LEN] = '\0'; + name[KSYM_NAME_LEN - 1] = '\0'; if (is_ksym_addr(addr)) { unsigned long pos; @@ -312,7 +312,7 @@ int sprint_symbol(char *buffer, unsigned long address) char *modname; const char *name; unsigned long offset, size; - char namebuf[KSYM_NAME_LEN+1]; + char namebuf[KSYM_NAME_LEN]; name = kallsyms_lookup(address, &size, &offset, &modname, namebuf); if (!name) @@ -342,8 +342,8 @@ struct kallsym_iter unsigned long value; unsigned int nameoff; /* If iterating in core kernel symbols */ char type; - char name[KSYM_NAME_LEN+1]; - char module_name[MODULE_NAME_LEN + 1]; + char name[KSYM_NAME_LEN]; + char module_name[MODULE_NAME_LEN]; int exported; }; diff --git a/kernel/kmod.c b/kernel/kmod.c index 4d32eb077179..beedbdc64608 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -33,6 +33,8 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/resource.h> +#include <linux/notifier.h> +#include <linux/suspend.h> #include <asm/uaccess.h> extern int max_threads; @@ -119,9 +121,10 @@ struct subprocess_info { char **argv; char **envp; struct key *ring; - int wait; + enum umh_wait wait; int retval; struct file *stdin; + void (*cleanup)(char **argv, char **envp); }; /* @@ -180,6 +183,14 @@ static int ____call_usermodehelper(void *data) do_exit(0); } +void call_usermodehelper_freeinfo(struct subprocess_info *info) +{ + if (info->cleanup) + (*info->cleanup)(info->argv, info->envp); + kfree(info); +} +EXPORT_SYMBOL(call_usermodehelper_freeinfo); + /* Keventd can't block, but this (a child) can. */ static int wait_for_helper(void *data) { @@ -216,8 +227,8 @@ static int wait_for_helper(void *data) sub_info->retval = ret; } - if (sub_info->wait < 0) - kfree(sub_info); + if (sub_info->wait == UMH_NO_WAIT) + call_usermodehelper_freeinfo(sub_info); else complete(sub_info->complete); return 0; @@ -229,34 +240,204 @@ static void __call_usermodehelper(struct work_struct *work) struct subprocess_info *sub_info = container_of(work, struct subprocess_info, work); pid_t pid; - int wait = sub_info->wait; + enum umh_wait wait = sub_info->wait; /* CLONE_VFORK: wait until the usermode helper has execve'd * successfully We need the data structures to stay around * until that is done. */ - if (wait) + if (wait == UMH_WAIT_PROC || wait == UMH_NO_WAIT) pid = kernel_thread(wait_for_helper, sub_info, CLONE_FS | CLONE_FILES | SIGCHLD); else pid = kernel_thread(____call_usermodehelper, sub_info, CLONE_VFORK | SIGCHLD); - if (wait < 0) - return; + switch (wait) { + case UMH_NO_WAIT: + break; - if (pid < 0) { + case UMH_WAIT_PROC: + if (pid > 0) + break; sub_info->retval = pid; + /* FALLTHROUGH */ + + case UMH_WAIT_EXEC: complete(sub_info->complete); - } else if (!wait) - complete(sub_info->complete); + } +} + +#ifdef CONFIG_PM +/* + * If set, call_usermodehelper_exec() will exit immediately returning -EBUSY + * (used for preventing user land processes from being created after the user + * land has been frozen during a system-wide hibernation or suspend operation). + */ +static int usermodehelper_disabled; + +/* Number of helpers running */ +static atomic_t running_helpers = ATOMIC_INIT(0); + +/* + * Wait queue head used by usermodehelper_pm_callback() to wait for all running + * helpers to finish. + */ +static DECLARE_WAIT_QUEUE_HEAD(running_helpers_waitq); + +/* + * Time to wait for running_helpers to become zero before the setting of + * usermodehelper_disabled in usermodehelper_pm_callback() fails + */ +#define RUNNING_HELPERS_TIMEOUT (5 * HZ) + +static int usermodehelper_pm_callback(struct notifier_block *nfb, + unsigned long action, + void *ignored) +{ + long retval; + + switch (action) { + case PM_HIBERNATION_PREPARE: + case PM_SUSPEND_PREPARE: + usermodehelper_disabled = 1; + smp_mb(); + /* + * From now on call_usermodehelper_exec() won't start any new + * helpers, so it is sufficient if running_helpers turns out to + * be zero at one point (it may be increased later, but that + * doesn't matter). + */ + retval = wait_event_timeout(running_helpers_waitq, + atomic_read(&running_helpers) == 0, + RUNNING_HELPERS_TIMEOUT); + if (retval) { + return NOTIFY_OK; + } else { + usermodehelper_disabled = 0; + return NOTIFY_BAD; + } + case PM_POST_HIBERNATION: + case PM_POST_SUSPEND: + usermodehelper_disabled = 0; + return NOTIFY_OK; + } + + return NOTIFY_DONE; +} + +static void helper_lock(void) +{ + atomic_inc(&running_helpers); + smp_mb__after_atomic_inc(); +} + +static void helper_unlock(void) +{ + if (atomic_dec_and_test(&running_helpers)) + wake_up(&running_helpers_waitq); +} + +static void register_pm_notifier_callback(void) +{ + pm_notifier(usermodehelper_pm_callback, 0); } +#else /* CONFIG_PM */ +#define usermodehelper_disabled 0 + +static inline void helper_lock(void) {} +static inline void helper_unlock(void) {} +static inline void register_pm_notifier_callback(void) {} +#endif /* CONFIG_PM */ /** - * call_usermodehelper_keys - start a usermode application - * @path: pathname for the application - * @argv: null-terminated argument list - * @envp: null-terminated environment list - * @session_keyring: session keyring for process (NULL for an empty keyring) + * call_usermodehelper_setup - prepare to call a usermode helper + * @path - path to usermode executable + * @argv - arg vector for process + * @envp - environment for process + * + * Returns either NULL on allocation failure, or a subprocess_info + * structure. This should be passed to call_usermodehelper_exec to + * exec the process and free the structure. + */ +struct subprocess_info *call_usermodehelper_setup(char *path, + char **argv, char **envp) +{ + struct subprocess_info *sub_info; + sub_info = kzalloc(sizeof(struct subprocess_info), GFP_ATOMIC); + if (!sub_info) + goto out; + + INIT_WORK(&sub_info->work, __call_usermodehelper); + sub_info->path = path; + sub_info->argv = argv; + sub_info->envp = envp; + + out: + return sub_info; +} +EXPORT_SYMBOL(call_usermodehelper_setup); + +/** + * call_usermodehelper_setkeys - set the session keys for usermode helper + * @info: a subprocess_info returned by call_usermodehelper_setup + * @session_keyring: the session keyring for the process + */ +void call_usermodehelper_setkeys(struct subprocess_info *info, + struct key *session_keyring) +{ + info->ring = session_keyring; +} +EXPORT_SYMBOL(call_usermodehelper_setkeys); + +/** + * call_usermodehelper_setcleanup - set a cleanup function + * @info: a subprocess_info returned by call_usermodehelper_setup + * @cleanup: a cleanup function + * + * The cleanup function is just befor ethe subprocess_info is about to + * be freed. This can be used for freeing the argv and envp. The + * Function must be runnable in either a process context or the + * context in which call_usermodehelper_exec is called. + */ +void call_usermodehelper_setcleanup(struct subprocess_info *info, + void (*cleanup)(char **argv, char **envp)) +{ + info->cleanup = cleanup; +} +EXPORT_SYMBOL(call_usermodehelper_setcleanup); + +/** + * call_usermodehelper_stdinpipe - set up a pipe to be used for stdin + * @sub_info: a subprocess_info returned by call_usermodehelper_setup + * @filp: set to the write-end of a pipe + * + * This constructs a pipe, and sets the read end to be the stdin of the + * subprocess, and returns the write-end in *@filp. + */ +int call_usermodehelper_stdinpipe(struct subprocess_info *sub_info, + struct file **filp) +{ + struct file *f; + + f = create_write_pipe(); + if (IS_ERR(f)) + return PTR_ERR(f); + *filp = f; + + f = create_read_pipe(f); + if (IS_ERR(f)) { + free_write_pipe(*filp); + return PTR_ERR(f); + } + sub_info->stdin = f; + + return 0; +} +EXPORT_SYMBOL(call_usermodehelper_stdinpipe); + +/** + * call_usermodehelper_exec - start a usermode application + * @sub_info: information about the subprocessa * @wait: wait for the application to finish and return status. * when -1 don't wait at all, but you get no useful error back when * the program couldn't be exec'ed. This makes it safe to call @@ -265,81 +446,70 @@ static void __call_usermodehelper(struct work_struct *work) * Runs a user-space application. The application is started * asynchronously if wait is not set, and runs as a child of keventd. * (ie. it runs with full root capabilities). - * - * Must be called from process context. Returns a negative error code - * if program was not execed successfully, or 0. */ -int call_usermodehelper_keys(char *path, char **argv, char **envp, - struct key *session_keyring, int wait) +int call_usermodehelper_exec(struct subprocess_info *sub_info, + enum umh_wait wait) { DECLARE_COMPLETION_ONSTACK(done); - struct subprocess_info *sub_info; int retval; - if (!khelper_wq) - return -EBUSY; - - if (path[0] == '\0') - return 0; + helper_lock(); + if (sub_info->path[0] == '\0') { + retval = 0; + goto out; + } - sub_info = kzalloc(sizeof(struct subprocess_info), GFP_ATOMIC); - if (!sub_info) - return -ENOMEM; + if (!khelper_wq || usermodehelper_disabled) { + retval = -EBUSY; + goto out; + } - INIT_WORK(&sub_info->work, __call_usermodehelper); sub_info->complete = &done; - sub_info->path = path; - sub_info->argv = argv; - sub_info->envp = envp; - sub_info->ring = session_keyring; sub_info->wait = wait; queue_work(khelper_wq, &sub_info->work); - if (wait < 0) /* task has freed sub_info */ + if (wait == UMH_NO_WAIT) /* task has freed sub_info */ return 0; wait_for_completion(&done); retval = sub_info->retval; - kfree(sub_info); + + out: + call_usermodehelper_freeinfo(sub_info); + helper_unlock(); return retval; } -EXPORT_SYMBOL(call_usermodehelper_keys); +EXPORT_SYMBOL(call_usermodehelper_exec); +/** + * call_usermodehelper_pipe - call a usermode helper process with a pipe stdin + * @path: path to usermode executable + * @argv: arg vector for process + * @envp: environment for process + * @filp: set to the write-end of a pipe + * + * This is a simple wrapper which executes a usermode-helper function + * with a pipe as stdin. It is implemented entirely in terms of + * lower-level call_usermodehelper_* functions. + */ int call_usermodehelper_pipe(char *path, char **argv, char **envp, struct file **filp) { - DECLARE_COMPLETION(done); - struct subprocess_info sub_info = { - .work = __WORK_INITIALIZER(sub_info.work, - __call_usermodehelper), - .complete = &done, - .path = path, - .argv = argv, - .envp = envp, - .retval = 0, - }; - struct file *f; - - if (!khelper_wq) - return -EBUSY; + struct subprocess_info *sub_info; + int ret; - if (path[0] == '\0') - return 0; + sub_info = call_usermodehelper_setup(path, argv, envp); + if (sub_info == NULL) + return -ENOMEM; - f = create_write_pipe(); - if (IS_ERR(f)) - return PTR_ERR(f); - *filp = f; + ret = call_usermodehelper_stdinpipe(sub_info, filp); + if (ret < 0) + goto out; - f = create_read_pipe(f); - if (IS_ERR(f)) { - free_write_pipe(*filp); - return PTR_ERR(f); - } - sub_info.stdin = f; + return call_usermodehelper_exec(sub_info, 1); - queue_work(khelper_wq, &sub_info.work); - wait_for_completion(&done); - return sub_info.retval; + out: + call_usermodehelper_freeinfo(sub_info); + return ret; } EXPORT_SYMBOL(call_usermodehelper_pipe); @@ -347,4 +517,5 @@ void __init usermodehelper_init(void) { khelper_wq = create_singlethread_workqueue("khelper"); BUG_ON(!khelper_wq); + register_pm_notifier_callback(); } diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 9e47d8c493f3..3e9f513a728d 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -675,9 +675,18 @@ static struct notifier_block kprobe_exceptions_nb = { .priority = 0x7fffffff /* we need to be notified first */ }; +unsigned long __weak arch_deref_entry_point(void *entry) +{ + return (unsigned long)entry; +} int __kprobes register_jprobe(struct jprobe *jp) { + unsigned long addr = arch_deref_entry_point(jp->entry); + + if (!kernel_text_address(addr)) + return -EINVAL; + /* Todo: Verify probepoint is a function entry point */ jp->kp.pre_handler = setjmp_pre_handler; jp->kp.break_handler = longjmp_break_handler; diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c index 559deca5ed15..2565e1b6dd7b 100644 --- a/kernel/ksysfs.c +++ b/kernel/ksysfs.c @@ -62,6 +62,28 @@ static ssize_t kexec_crash_loaded_show(struct kset *kset, char *page) KERNEL_ATTR_RO(kexec_crash_loaded); #endif /* CONFIG_KEXEC */ +/* + * Make /sys/kernel/notes give the raw contents of our kernel .notes section. + */ +extern const char __start_notes __attribute__((weak)); +extern const char __stop_notes __attribute__((weak)); +#define notes_size (&__stop_notes - &__start_notes) + +static ssize_t notes_read(struct kobject *kobj, struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + memcpy(buf, &__start_notes + off, count); + return count; +} + +static struct bin_attribute notes_attr = { + .attr = { + .name = "notes", + .mode = S_IRUGO, + }, + .read = ¬es_read, +}; + decl_subsys(kernel, NULL, NULL); EXPORT_SYMBOL_GPL(kernel_subsys); @@ -88,6 +110,12 @@ static int __init ksysfs_init(void) error = sysfs_create_group(&kernel_subsys.kobj, &kernel_attr_group); + if (!error && notes_size > 0) { + notes_attr.size = notes_size; + error = sysfs_create_bin_file(&kernel_subsys.kobj, + ¬es_attr); + } + return error; } diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 1a5ff2211d88..734da579ad13 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -5,7 +5,8 @@ * * Started by Ingo Molnar: * - * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> + * Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> + * Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> * * this code maps all the lock dependencies as they occur in a live kernel * and will warn about the following classes of locking bugs: @@ -37,11 +38,26 @@ #include <linux/debug_locks.h> #include <linux/irqflags.h> #include <linux/utsname.h> +#include <linux/hash.h> #include <asm/sections.h> #include "lockdep_internals.h" +#ifdef CONFIG_PROVE_LOCKING +int prove_locking = 1; +module_param(prove_locking, int, 0644); +#else +#define prove_locking 0 +#endif + +#ifdef CONFIG_LOCK_STAT +int lock_stat = 1; +module_param(lock_stat, int, 0644); +#else +#define lock_stat 0 +#endif + /* * lockdep_lock: protects the lockdep graph, the hashes and the * class/list/hash allocators. @@ -96,23 +112,6 @@ unsigned long nr_list_entries; static struct lock_list list_entries[MAX_LOCKDEP_ENTRIES]; /* - * Allocate a lockdep entry. (assumes the graph_lock held, returns - * with NULL on failure) - */ -static struct lock_list *alloc_list_entry(void) -{ - if (nr_list_entries >= MAX_LOCKDEP_ENTRIES) { - if (!debug_locks_off_graph_unlock()) - return NULL; - - printk("BUG: MAX_LOCKDEP_ENTRIES too low!\n"); - printk("turning off the locking correctness validator.\n"); - return NULL; - } - return list_entries + nr_list_entries++; -} - -/* * All data structures here are protected by the global debug_lock. * * Mutex key structs only get allocated, once during bootup, and never @@ -121,6 +120,117 @@ static struct lock_list *alloc_list_entry(void) unsigned long nr_lock_classes; static struct lock_class lock_classes[MAX_LOCKDEP_KEYS]; +#ifdef CONFIG_LOCK_STAT +static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS], lock_stats); + +static int lock_contention_point(struct lock_class *class, unsigned long ip) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(class->contention_point); i++) { + if (class->contention_point[i] == 0) { + class->contention_point[i] = ip; + break; + } + if (class->contention_point[i] == ip) + break; + } + + return i; +} + +static void lock_time_inc(struct lock_time *lt, s64 time) +{ + if (time > lt->max) + lt->max = time; + + if (time < lt->min || !lt->min) + lt->min = time; + + lt->total += time; + lt->nr++; +} + +static inline void lock_time_add(struct lock_time *src, struct lock_time *dst) +{ + dst->min += src->min; + dst->max += src->max; + dst->total += src->total; + dst->nr += src->nr; +} + +struct lock_class_stats lock_stats(struct lock_class *class) +{ + struct lock_class_stats stats; + int cpu, i; + + memset(&stats, 0, sizeof(struct lock_class_stats)); + for_each_possible_cpu(cpu) { + struct lock_class_stats *pcs = + &per_cpu(lock_stats, cpu)[class - lock_classes]; + + for (i = 0; i < ARRAY_SIZE(stats.contention_point); i++) + stats.contention_point[i] += pcs->contention_point[i]; + + lock_time_add(&pcs->read_waittime, &stats.read_waittime); + lock_time_add(&pcs->write_waittime, &stats.write_waittime); + + lock_time_add(&pcs->read_holdtime, &stats.read_holdtime); + lock_time_add(&pcs->write_holdtime, &stats.write_holdtime); + + for (i = 0; i < ARRAY_SIZE(stats.bounces); i++) + stats.bounces[i] += pcs->bounces[i]; + } + + return stats; +} + +void clear_lock_stats(struct lock_class *class) +{ + int cpu; + + for_each_possible_cpu(cpu) { + struct lock_class_stats *cpu_stats = + &per_cpu(lock_stats, cpu)[class - lock_classes]; + + memset(cpu_stats, 0, sizeof(struct lock_class_stats)); + } + memset(class->contention_point, 0, sizeof(class->contention_point)); +} + +static struct lock_class_stats *get_lock_stats(struct lock_class *class) +{ + return &get_cpu_var(lock_stats)[class - lock_classes]; +} + +static void put_lock_stats(struct lock_class_stats *stats) +{ + put_cpu_var(lock_stats); +} + +static void lock_release_holdtime(struct held_lock *hlock) +{ + struct lock_class_stats *stats; + s64 holdtime; + + if (!lock_stat) + return; + + holdtime = sched_clock() - hlock->holdtime_stamp; + + stats = get_lock_stats(hlock->class); + if (hlock->read) + lock_time_inc(&stats->read_holdtime, holdtime); + else + lock_time_inc(&stats->write_holdtime, holdtime); + put_lock_stats(stats); +} +#else +static inline void lock_release_holdtime(struct held_lock *hlock) +{ +} +#endif + /* * We keep a global list of all lock classes. The list only grows, * never shrinks. The list is only accessed with the lockdep @@ -133,24 +243,18 @@ LIST_HEAD(all_lock_classes); */ #define CLASSHASH_BITS (MAX_LOCKDEP_KEYS_BITS - 1) #define CLASSHASH_SIZE (1UL << CLASSHASH_BITS) -#define CLASSHASH_MASK (CLASSHASH_SIZE - 1) -#define __classhashfn(key) ((((unsigned long)key >> CLASSHASH_BITS) + (unsigned long)key) & CLASSHASH_MASK) +#define __classhashfn(key) hash_long((unsigned long)key, CLASSHASH_BITS) #define classhashentry(key) (classhash_table + __classhashfn((key))) static struct list_head classhash_table[CLASSHASH_SIZE]; -unsigned long nr_lock_chains; -static struct lock_chain lock_chains[MAX_LOCKDEP_CHAINS]; - /* * We put the lock dependency chains into a hash-table as well, to cache * their existence: */ #define CHAINHASH_BITS (MAX_LOCKDEP_CHAINS_BITS-1) #define CHAINHASH_SIZE (1UL << CHAINHASH_BITS) -#define CHAINHASH_MASK (CHAINHASH_SIZE - 1) -#define __chainhashfn(chain) \ - (((chain >> CHAINHASH_BITS) + chain) & CHAINHASH_MASK) +#define __chainhashfn(chain) hash_long(chain, CHAINHASH_BITS) #define chainhashentry(chain) (chainhash_table + __chainhashfn((chain))) static struct list_head chainhash_table[CHAINHASH_SIZE]; @@ -223,26 +327,6 @@ static int verbose(struct lock_class *class) return 0; } -#ifdef CONFIG_TRACE_IRQFLAGS - -static int hardirq_verbose(struct lock_class *class) -{ -#if HARDIRQ_VERBOSE - return class_filter(class); -#endif - return 0; -} - -static int softirq_verbose(struct lock_class *class) -{ -#if SOFTIRQ_VERBOSE - return class_filter(class); -#endif - return 0; -} - -#endif - /* * Stack-trace: tightly packed array of stack backtrace * addresses. Protected by the graph_lock. @@ -291,6 +375,11 @@ unsigned int max_recursion_depth; * about it later on, in lockdep_info(). */ static int lockdep_init_error; +static unsigned long lockdep_init_trace_data[20]; +static struct stack_trace lockdep_init_trace = { + .max_entries = ARRAY_SIZE(lockdep_init_trace_data), + .entries = lockdep_init_trace_data, +}; /* * Various lockdep statistics: @@ -379,7 +468,7 @@ get_usage_chars(struct lock_class *class, char *c1, char *c2, char *c3, char *c4 static void print_lock_name(struct lock_class *class) { - char str[KSYM_NAME_LEN + 1], c1, c2, c3, c4; + char str[KSYM_NAME_LEN], c1, c2, c3, c4; const char *name; get_usage_chars(class, &c1, &c2, &c3, &c4); @@ -401,7 +490,7 @@ static void print_lock_name(struct lock_class *class) static void print_lockdep_cache(struct lockdep_map *lock) { const char *name; - char str[KSYM_NAME_LEN + 1]; + char str[KSYM_NAME_LEN]; name = lock->name; if (!name) @@ -482,6 +571,262 @@ static void print_lock_dependencies(struct lock_class *class, int depth) } } +static void print_kernel_version(void) +{ + printk("%s %.*s\n", init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); +} + +static int very_verbose(struct lock_class *class) +{ +#if VERY_VERBOSE + return class_filter(class); +#endif + return 0; +} + +/* + * Is this the address of a static object: + */ +static int static_obj(void *obj) +{ + unsigned long start = (unsigned long) &_stext, + end = (unsigned long) &_end, + addr = (unsigned long) obj; +#ifdef CONFIG_SMP + int i; +#endif + + /* + * static variable? + */ + if ((addr >= start) && (addr < end)) + return 1; + +#ifdef CONFIG_SMP + /* + * percpu var? + */ + for_each_possible_cpu(i) { + start = (unsigned long) &__per_cpu_start + per_cpu_offset(i); + end = (unsigned long) &__per_cpu_start + PERCPU_ENOUGH_ROOM + + per_cpu_offset(i); + + if ((addr >= start) && (addr < end)) + return 1; + } +#endif + + /* + * module var? + */ + return is_module_address(addr); +} + +/* + * To make lock name printouts unique, we calculate a unique + * class->name_version generation counter: + */ +static int count_matching_names(struct lock_class *new_class) +{ + struct lock_class *class; + int count = 0; + + if (!new_class->name) + return 0; + + list_for_each_entry(class, &all_lock_classes, lock_entry) { + if (new_class->key - new_class->subclass == class->key) + return class->name_version; + if (class->name && !strcmp(class->name, new_class->name)) + count = max(count, class->name_version); + } + + return count + 1; +} + +/* + * Register a lock's class in the hash-table, if the class is not present + * yet. Otherwise we look it up. We cache the result in the lock object + * itself, so actual lookup of the hash should be once per lock object. + */ +static inline struct lock_class * +look_up_lock_class(struct lockdep_map *lock, unsigned int subclass) +{ + struct lockdep_subclass_key *key; + struct list_head *hash_head; + struct lock_class *class; + +#ifdef CONFIG_DEBUG_LOCKDEP + /* + * If the architecture calls into lockdep before initializing + * the hashes then we'll warn about it later. (we cannot printk + * right now) + */ + if (unlikely(!lockdep_initialized)) { + lockdep_init(); + lockdep_init_error = 1; + save_stack_trace(&lockdep_init_trace); + } +#endif + + /* + * Static locks do not have their class-keys yet - for them the key + * is the lock object itself: + */ + if (unlikely(!lock->key)) + lock->key = (void *)lock; + + /* + * NOTE: the class-key must be unique. For dynamic locks, a static + * lock_class_key variable is passed in through the mutex_init() + * (or spin_lock_init()) call - which acts as the key. For static + * locks we use the lock object itself as the key. + */ + BUILD_BUG_ON(sizeof(struct lock_class_key) > + sizeof(struct lockdep_map)); + + key = lock->key->subkeys + subclass; + + hash_head = classhashentry(key); + + /* + * We can walk the hash lockfree, because the hash only + * grows, and we are careful when adding entries to the end: + */ + list_for_each_entry(class, hash_head, hash_entry) { + if (class->key == key) { + WARN_ON_ONCE(class->name != lock->name); + return class; + } + } + + return NULL; +} + +/* + * Register a lock's class in the hash-table, if the class is not present + * yet. Otherwise we look it up. We cache the result in the lock object + * itself, so actual lookup of the hash should be once per lock object. + */ +static inline struct lock_class * +register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force) +{ + struct lockdep_subclass_key *key; + struct list_head *hash_head; + struct lock_class *class; + unsigned long flags; + + class = look_up_lock_class(lock, subclass); + if (likely(class)) + return class; + + /* + * Debug-check: all keys must be persistent! + */ + if (!static_obj(lock->key)) { + debug_locks_off(); + printk("INFO: trying to register non-static key.\n"); + printk("the code is fine but needs lockdep annotation.\n"); + printk("turning off the locking correctness validator.\n"); + dump_stack(); + + return NULL; + } + + key = lock->key->subkeys + subclass; + hash_head = classhashentry(key); + + raw_local_irq_save(flags); + if (!graph_lock()) { + raw_local_irq_restore(flags); + return NULL; + } + /* + * We have to do the hash-walk again, to avoid races + * with another CPU: + */ + list_for_each_entry(class, hash_head, hash_entry) + if (class->key == key) + goto out_unlock_set; + /* + * Allocate a new key from the static array, and add it to + * the hash: + */ + if (nr_lock_classes >= MAX_LOCKDEP_KEYS) { + if (!debug_locks_off_graph_unlock()) { + raw_local_irq_restore(flags); + return NULL; + } + raw_local_irq_restore(flags); + + printk("BUG: MAX_LOCKDEP_KEYS too low!\n"); + printk("turning off the locking correctness validator.\n"); + return NULL; + } + class = lock_classes + nr_lock_classes++; + debug_atomic_inc(&nr_unused_locks); + class->key = key; + class->name = lock->name; + class->subclass = subclass; + INIT_LIST_HEAD(&class->lock_entry); + INIT_LIST_HEAD(&class->locks_before); + INIT_LIST_HEAD(&class->locks_after); + class->name_version = count_matching_names(class); + /* + * We use RCU's safe list-add method to make + * parallel walking of the hash-list safe: + */ + list_add_tail_rcu(&class->hash_entry, hash_head); + + if (verbose(class)) { + graph_unlock(); + raw_local_irq_restore(flags); + + printk("\nnew class %p: %s", class->key, class->name); + if (class->name_version > 1) + printk("#%d", class->name_version); + printk("\n"); + dump_stack(); + + raw_local_irq_save(flags); + if (!graph_lock()) { + raw_local_irq_restore(flags); + return NULL; + } + } +out_unlock_set: + graph_unlock(); + raw_local_irq_restore(flags); + + if (!subclass || force) + lock->class_cache = class; + + if (DEBUG_LOCKS_WARN_ON(class->subclass != subclass)) + return NULL; + + return class; +} + +#ifdef CONFIG_PROVE_LOCKING +/* + * Allocate a lockdep entry. (assumes the graph_lock held, returns + * with NULL on failure) + */ +static struct lock_list *alloc_list_entry(void) +{ + if (nr_list_entries >= MAX_LOCKDEP_ENTRIES) { + if (!debug_locks_off_graph_unlock()) + return NULL; + + printk("BUG: MAX_LOCKDEP_ENTRIES too low!\n"); + printk("turning off the locking correctness validator.\n"); + return NULL; + } + return list_entries + nr_list_entries++; +} + /* * Add a new dependency to the head of the list: */ @@ -542,13 +887,6 @@ print_circular_bug_entry(struct lock_list *target, unsigned int depth) return 0; } -static void print_kernel_version(void) -{ - printk("%s %.*s\n", init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); -} - /* * When a circular dependency is detected, print the * header first: @@ -640,15 +978,7 @@ check_noncircular(struct lock_class *source, unsigned int depth) return 1; } -static int very_verbose(struct lock_class *class) -{ -#if VERY_VERBOSE - return class_filter(class); -#endif - return 0; -} #ifdef CONFIG_TRACE_IRQFLAGS - /* * Forwards and backwards subgraph searching, for the purposes of * proving that two subgraphs can be connected by a new dependency @@ -821,6 +1151,78 @@ check_usage(struct task_struct *curr, struct held_lock *prev, bit_backwards, bit_forwards, irqclass); } +static int +check_prev_add_irq(struct task_struct *curr, struct held_lock *prev, + struct held_lock *next) +{ + /* + * Prove that the new dependency does not connect a hardirq-safe + * lock with a hardirq-unsafe lock - to achieve this we search + * the backwards-subgraph starting at <prev>, and the + * forwards-subgraph starting at <next>: + */ + if (!check_usage(curr, prev, next, LOCK_USED_IN_HARDIRQ, + LOCK_ENABLED_HARDIRQS, "hard")) + return 0; + + /* + * Prove that the new dependency does not connect a hardirq-safe-read + * lock with a hardirq-unsafe lock - to achieve this we search + * the backwards-subgraph starting at <prev>, and the + * forwards-subgraph starting at <next>: + */ + if (!check_usage(curr, prev, next, LOCK_USED_IN_HARDIRQ_READ, + LOCK_ENABLED_HARDIRQS, "hard-read")) + return 0; + + /* + * Prove that the new dependency does not connect a softirq-safe + * lock with a softirq-unsafe lock - to achieve this we search + * the backwards-subgraph starting at <prev>, and the + * forwards-subgraph starting at <next>: + */ + if (!check_usage(curr, prev, next, LOCK_USED_IN_SOFTIRQ, + LOCK_ENABLED_SOFTIRQS, "soft")) + return 0; + /* + * Prove that the new dependency does not connect a softirq-safe-read + * lock with a softirq-unsafe lock - to achieve this we search + * the backwards-subgraph starting at <prev>, and the + * forwards-subgraph starting at <next>: + */ + if (!check_usage(curr, prev, next, LOCK_USED_IN_SOFTIRQ_READ, + LOCK_ENABLED_SOFTIRQS, "soft")) + return 0; + + return 1; +} + +static void inc_chains(void) +{ + if (current->hardirq_context) + nr_hardirq_chains++; + else { + if (current->softirq_context) + nr_softirq_chains++; + else + nr_process_chains++; + } +} + +#else + +static inline int +check_prev_add_irq(struct task_struct *curr, struct held_lock *prev, + struct held_lock *next) +{ + return 1; +} + +static inline void inc_chains(void) +{ + nr_process_chains++; +} + #endif static int @@ -922,47 +1324,10 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev, if (!(check_noncircular(next->class, 0))) return print_circular_bug_tail(); -#ifdef CONFIG_TRACE_IRQFLAGS - /* - * Prove that the new dependency does not connect a hardirq-safe - * lock with a hardirq-unsafe lock - to achieve this we search - * the backwards-subgraph starting at <prev>, and the - * forwards-subgraph starting at <next>: - */ - if (!check_usage(curr, prev, next, LOCK_USED_IN_HARDIRQ, - LOCK_ENABLED_HARDIRQS, "hard")) + if (!check_prev_add_irq(curr, prev, next)) return 0; /* - * Prove that the new dependency does not connect a hardirq-safe-read - * lock with a hardirq-unsafe lock - to achieve this we search - * the backwards-subgraph starting at <prev>, and the - * forwards-subgraph starting at <next>: - */ - if (!check_usage(curr, prev, next, LOCK_USED_IN_HARDIRQ_READ, - LOCK_ENABLED_HARDIRQS, "hard-read")) - return 0; - - /* - * Prove that the new dependency does not connect a softirq-safe - * lock with a softirq-unsafe lock - to achieve this we search - * the backwards-subgraph starting at <prev>, and the - * forwards-subgraph starting at <next>: - */ - if (!check_usage(curr, prev, next, LOCK_USED_IN_SOFTIRQ, - LOCK_ENABLED_SOFTIRQS, "soft")) - return 0; - /* - * Prove that the new dependency does not connect a softirq-safe-read - * lock with a softirq-unsafe lock - to achieve this we search - * the backwards-subgraph starting at <prev>, and the - * forwards-subgraph starting at <next>: - */ - if (!check_usage(curr, prev, next, LOCK_USED_IN_SOFTIRQ_READ, - LOCK_ENABLED_SOFTIRQS, "soft")) - return 0; -#endif - /* * For recursive read-locks we do all the dependency checks, * but we dont store read-triggered dependencies (only * write-triggered dependencies). This ensures that only the @@ -1088,224 +1453,8 @@ out_bug: return 0; } - -/* - * Is this the address of a static object: - */ -static int static_obj(void *obj) -{ - unsigned long start = (unsigned long) &_stext, - end = (unsigned long) &_end, - addr = (unsigned long) obj; -#ifdef CONFIG_SMP - int i; -#endif - - /* - * static variable? - */ - if ((addr >= start) && (addr < end)) - return 1; - -#ifdef CONFIG_SMP - /* - * percpu var? - */ - for_each_possible_cpu(i) { - start = (unsigned long) &__per_cpu_start + per_cpu_offset(i); - end = (unsigned long) &__per_cpu_start + PERCPU_ENOUGH_ROOM - + per_cpu_offset(i); - - if ((addr >= start) && (addr < end)) - return 1; - } -#endif - - /* - * module var? - */ - return is_module_address(addr); -} - -/* - * To make lock name printouts unique, we calculate a unique - * class->name_version generation counter: - */ -static int count_matching_names(struct lock_class *new_class) -{ - struct lock_class *class; - int count = 0; - - if (!new_class->name) - return 0; - - list_for_each_entry(class, &all_lock_classes, lock_entry) { - if (new_class->key - new_class->subclass == class->key) - return class->name_version; - if (class->name && !strcmp(class->name, new_class->name)) - count = max(count, class->name_version); - } - - return count + 1; -} - -/* - * Register a lock's class in the hash-table, if the class is not present - * yet. Otherwise we look it up. We cache the result in the lock object - * itself, so actual lookup of the hash should be once per lock object. - */ -static inline struct lock_class * -look_up_lock_class(struct lockdep_map *lock, unsigned int subclass) -{ - struct lockdep_subclass_key *key; - struct list_head *hash_head; - struct lock_class *class; - -#ifdef CONFIG_DEBUG_LOCKDEP - /* - * If the architecture calls into lockdep before initializing - * the hashes then we'll warn about it later. (we cannot printk - * right now) - */ - if (unlikely(!lockdep_initialized)) { - lockdep_init(); - lockdep_init_error = 1; - } -#endif - - /* - * Static locks do not have their class-keys yet - for them the key - * is the lock object itself: - */ - if (unlikely(!lock->key)) - lock->key = (void *)lock; - - /* - * NOTE: the class-key must be unique. For dynamic locks, a static - * lock_class_key variable is passed in through the mutex_init() - * (or spin_lock_init()) call - which acts as the key. For static - * locks we use the lock object itself as the key. - */ - BUILD_BUG_ON(sizeof(struct lock_class_key) > sizeof(struct lock_class)); - - key = lock->key->subkeys + subclass; - - hash_head = classhashentry(key); - - /* - * We can walk the hash lockfree, because the hash only - * grows, and we are careful when adding entries to the end: - */ - list_for_each_entry(class, hash_head, hash_entry) - if (class->key == key) - return class; - - return NULL; -} - -/* - * Register a lock's class in the hash-table, if the class is not present - * yet. Otherwise we look it up. We cache the result in the lock object - * itself, so actual lookup of the hash should be once per lock object. - */ -static inline struct lock_class * -register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force) -{ - struct lockdep_subclass_key *key; - struct list_head *hash_head; - struct lock_class *class; - unsigned long flags; - - class = look_up_lock_class(lock, subclass); - if (likely(class)) - return class; - - /* - * Debug-check: all keys must be persistent! - */ - if (!static_obj(lock->key)) { - debug_locks_off(); - printk("INFO: trying to register non-static key.\n"); - printk("the code is fine but needs lockdep annotation.\n"); - printk("turning off the locking correctness validator.\n"); - dump_stack(); - - return NULL; - } - - key = lock->key->subkeys + subclass; - hash_head = classhashentry(key); - - raw_local_irq_save(flags); - if (!graph_lock()) { - raw_local_irq_restore(flags); - return NULL; - } - /* - * We have to do the hash-walk again, to avoid races - * with another CPU: - */ - list_for_each_entry(class, hash_head, hash_entry) - if (class->key == key) - goto out_unlock_set; - /* - * Allocate a new key from the static array, and add it to - * the hash: - */ - if (nr_lock_classes >= MAX_LOCKDEP_KEYS) { - if (!debug_locks_off_graph_unlock()) { - raw_local_irq_restore(flags); - return NULL; - } - raw_local_irq_restore(flags); - - printk("BUG: MAX_LOCKDEP_KEYS too low!\n"); - printk("turning off the locking correctness validator.\n"); - return NULL; - } - class = lock_classes + nr_lock_classes++; - debug_atomic_inc(&nr_unused_locks); - class->key = key; - class->name = lock->name; - class->subclass = subclass; - INIT_LIST_HEAD(&class->lock_entry); - INIT_LIST_HEAD(&class->locks_before); - INIT_LIST_HEAD(&class->locks_after); - class->name_version = count_matching_names(class); - /* - * We use RCU's safe list-add method to make - * parallel walking of the hash-list safe: - */ - list_add_tail_rcu(&class->hash_entry, hash_head); - - if (verbose(class)) { - graph_unlock(); - raw_local_irq_restore(flags); - - printk("\nnew class %p: %s", class->key, class->name); - if (class->name_version > 1) - printk("#%d", class->name_version); - printk("\n"); - dump_stack(); - - raw_local_irq_save(flags); - if (!graph_lock()) { - raw_local_irq_restore(flags); - return NULL; - } - } -out_unlock_set: - graph_unlock(); - raw_local_irq_restore(flags); - - if (!subclass || force) - lock->class_cache = class; - - if (DEBUG_LOCKS_WARN_ON(class->subclass != subclass)) - return NULL; - - return class; -} +unsigned long nr_lock_chains; +static struct lock_chain lock_chains[MAX_LOCKDEP_CHAINS]; /* * Look up a dependency chain. If the key is not present yet then @@ -1366,21 +1515,72 @@ cache_hit: chain->chain_key = chain_key; list_add_tail_rcu(&chain->entry, hash_head); debug_atomic_inc(&chain_lookup_misses); -#ifdef CONFIG_TRACE_IRQFLAGS - if (current->hardirq_context) - nr_hardirq_chains++; - else { - if (current->softirq_context) - nr_softirq_chains++; - else - nr_process_chains++; - } -#else - nr_process_chains++; -#endif + inc_chains(); + + return 1; +} + +static int validate_chain(struct task_struct *curr, struct lockdep_map *lock, + struct held_lock *hlock, int chain_head) +{ + /* + * Trylock needs to maintain the stack of held locks, but it + * does not add new dependencies, because trylock can be done + * in any order. + * + * We look up the chain_key and do the O(N^2) check and update of + * the dependencies only if this is a new dependency chain. + * (If lookup_chain_cache() returns with 1 it acquires + * graph_lock for us) + */ + if (!hlock->trylock && (hlock->check == 2) && + lookup_chain_cache(curr->curr_chain_key, hlock->class)) { + /* + * Check whether last held lock: + * + * - is irq-safe, if this lock is irq-unsafe + * - is softirq-safe, if this lock is hardirq-unsafe + * + * And check whether the new lock's dependency graph + * could lead back to the previous lock. + * + * any of these scenarios could lead to a deadlock. If + * All validations + */ + int ret = check_deadlock(curr, hlock, lock, hlock->read); + + if (!ret) + return 0; + /* + * Mark recursive read, as we jump over it when + * building dependencies (just like we jump over + * trylock entries): + */ + if (ret == 2) + hlock->read = 2; + /* + * Add dependency only if this lock is not the head + * of the chain, and if it's not a secondary read-lock: + */ + if (!chain_head && ret != 2) + if (!check_prevs_add(curr, hlock)) + return 0; + graph_unlock(); + } else + /* after lookup_chain_cache(): */ + if (unlikely(!debug_locks)) + return 0; return 1; } +#else +static inline int validate_chain(struct task_struct *curr, + struct lockdep_map *lock, struct held_lock *hlock, + int chain_head) +{ + return 1; +} +#endif /* * We are building curr_chain_key incrementally, so double-check @@ -1425,6 +1625,57 @@ static void check_chain_key(struct task_struct *curr) #endif } +static int +print_usage_bug(struct task_struct *curr, struct held_lock *this, + enum lock_usage_bit prev_bit, enum lock_usage_bit new_bit) +{ + if (!debug_locks_off_graph_unlock() || debug_locks_silent) + return 0; + + printk("\n=================================\n"); + printk( "[ INFO: inconsistent lock state ]\n"); + print_kernel_version(); + printk( "---------------------------------\n"); + + printk("inconsistent {%s} -> {%s} usage.\n", + usage_str[prev_bit], usage_str[new_bit]); + + printk("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] takes:\n", + curr->comm, curr->pid, + trace_hardirq_context(curr), hardirq_count() >> HARDIRQ_SHIFT, + trace_softirq_context(curr), softirq_count() >> SOFTIRQ_SHIFT, + trace_hardirqs_enabled(curr), + trace_softirqs_enabled(curr)); + print_lock(this); + + printk("{%s} state was registered at:\n", usage_str[prev_bit]); + print_stack_trace(this->class->usage_traces + prev_bit, 1); + + print_irqtrace_events(curr); + printk("\nother info that might help us debug this:\n"); + lockdep_print_held_locks(curr); + + printk("\nstack backtrace:\n"); + dump_stack(); + + return 0; +} + +/* + * Print out an error if an invalid bit is set: + */ +static inline int +valid_state(struct task_struct *curr, struct held_lock *this, + enum lock_usage_bit new_bit, enum lock_usage_bit bad_bit) +{ + if (unlikely(this->class->usage_mask & (1 << bad_bit))) + return print_usage_bug(curr, this, bad_bit, new_bit); + return 1; +} + +static int mark_lock(struct task_struct *curr, struct held_lock *this, + enum lock_usage_bit new_bit); + #ifdef CONFIG_TRACE_IRQFLAGS /* @@ -1518,90 +1769,30 @@ void print_irqtrace_events(struct task_struct *curr) print_ip_sym(curr->softirq_disable_ip); } -#endif - -static int -print_usage_bug(struct task_struct *curr, struct held_lock *this, - enum lock_usage_bit prev_bit, enum lock_usage_bit new_bit) +static int hardirq_verbose(struct lock_class *class) { - if (!debug_locks_off_graph_unlock() || debug_locks_silent) - return 0; - - printk("\n=================================\n"); - printk( "[ INFO: inconsistent lock state ]\n"); - print_kernel_version(); - printk( "---------------------------------\n"); - - printk("inconsistent {%s} -> {%s} usage.\n", - usage_str[prev_bit], usage_str[new_bit]); - - printk("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] takes:\n", - curr->comm, curr->pid, - trace_hardirq_context(curr), hardirq_count() >> HARDIRQ_SHIFT, - trace_softirq_context(curr), softirq_count() >> SOFTIRQ_SHIFT, - trace_hardirqs_enabled(curr), - trace_softirqs_enabled(curr)); - print_lock(this); - - printk("{%s} state was registered at:\n", usage_str[prev_bit]); - print_stack_trace(this->class->usage_traces + prev_bit, 1); - - print_irqtrace_events(curr); - printk("\nother info that might help us debug this:\n"); - lockdep_print_held_locks(curr); - - printk("\nstack backtrace:\n"); - dump_stack(); - +#if HARDIRQ_VERBOSE + return class_filter(class); +#endif return 0; } -/* - * Print out an error if an invalid bit is set: - */ -static inline int -valid_state(struct task_struct *curr, struct held_lock *this, - enum lock_usage_bit new_bit, enum lock_usage_bit bad_bit) +static int softirq_verbose(struct lock_class *class) { - if (unlikely(this->class->usage_mask & (1 << bad_bit))) - return print_usage_bug(curr, this, bad_bit, new_bit); - return 1; +#if SOFTIRQ_VERBOSE + return class_filter(class); +#endif + return 0; } #define STRICT_READ_CHECKS 1 -/* - * Mark a lock with a usage bit, and validate the state transition: - */ -static int mark_lock(struct task_struct *curr, struct held_lock *this, - enum lock_usage_bit new_bit) +static int mark_lock_irq(struct task_struct *curr, struct held_lock *this, + enum lock_usage_bit new_bit) { - unsigned int new_mask = 1 << new_bit, ret = 1; - - /* - * If already set then do not dirty the cacheline, - * nor do any checks: - */ - if (likely(this->class->usage_mask & new_mask)) - return 1; - - if (!graph_lock()) - return 0; - /* - * Make sure we didnt race: - */ - if (unlikely(this->class->usage_mask & new_mask)) { - graph_unlock(); - return 1; - } - - this->class->usage_mask |= new_mask; + int ret = 1; - if (!save_trace(this->class->usage_traces + new_bit)) - return 0; - - switch (new_bit) { -#ifdef CONFIG_TRACE_IRQFLAGS + switch(new_bit) { case LOCK_USED_IN_HARDIRQ: if (!valid_state(curr, this, new_bit, LOCK_ENABLED_HARDIRQS)) return 0; @@ -1760,37 +1951,14 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this, if (softirq_verbose(this->class)) ret = 2; break; -#endif - case LOCK_USED: - /* - * Add it to the global list of classes: - */ - list_add_tail_rcu(&this->class->lock_entry, &all_lock_classes); - debug_atomic_dec(&nr_unused_locks); - break; default: - if (!debug_locks_off_graph_unlock()) - return 0; WARN_ON(1); - return 0; - } - - graph_unlock(); - - /* - * We must printk outside of the graph_lock: - */ - if (ret == 2) { - printk("\nmarked lock as {%s}:\n", usage_str[new_bit]); - print_lock(this); - print_irqtrace_events(curr); - dump_stack(); + break; } return ret; } -#ifdef CONFIG_TRACE_IRQFLAGS /* * Mark all held locks with a usage bit: */ @@ -1973,9 +2141,176 @@ void trace_softirqs_off(unsigned long ip) debug_atomic_inc(&redundant_softirqs_off); } +static int mark_irqflags(struct task_struct *curr, struct held_lock *hlock) +{ + /* + * If non-trylock use in a hardirq or softirq context, then + * mark the lock as used in these contexts: + */ + if (!hlock->trylock) { + if (hlock->read) { + if (curr->hardirq_context) + if (!mark_lock(curr, hlock, + LOCK_USED_IN_HARDIRQ_READ)) + return 0; + if (curr->softirq_context) + if (!mark_lock(curr, hlock, + LOCK_USED_IN_SOFTIRQ_READ)) + return 0; + } else { + if (curr->hardirq_context) + if (!mark_lock(curr, hlock, LOCK_USED_IN_HARDIRQ)) + return 0; + if (curr->softirq_context) + if (!mark_lock(curr, hlock, LOCK_USED_IN_SOFTIRQ)) + return 0; + } + } + if (!hlock->hardirqs_off) { + if (hlock->read) { + if (!mark_lock(curr, hlock, + LOCK_ENABLED_HARDIRQS_READ)) + return 0; + if (curr->softirqs_enabled) + if (!mark_lock(curr, hlock, + LOCK_ENABLED_SOFTIRQS_READ)) + return 0; + } else { + if (!mark_lock(curr, hlock, + LOCK_ENABLED_HARDIRQS)) + return 0; + if (curr->softirqs_enabled) + if (!mark_lock(curr, hlock, + LOCK_ENABLED_SOFTIRQS)) + return 0; + } + } + + return 1; +} + +static int separate_irq_context(struct task_struct *curr, + struct held_lock *hlock) +{ + unsigned int depth = curr->lockdep_depth; + + /* + * Keep track of points where we cross into an interrupt context: + */ + hlock->irq_context = 2*(curr->hardirq_context ? 1 : 0) + + curr->softirq_context; + if (depth) { + struct held_lock *prev_hlock; + + prev_hlock = curr->held_locks + depth-1; + /* + * If we cross into another context, reset the + * hash key (this also prevents the checking and the + * adding of the dependency to 'prev'): + */ + if (prev_hlock->irq_context != hlock->irq_context) + return 1; + } + return 0; +} + +#else + +static inline +int mark_lock_irq(struct task_struct *curr, struct held_lock *this, + enum lock_usage_bit new_bit) +{ + WARN_ON(1); + return 1; +} + +static inline int mark_irqflags(struct task_struct *curr, + struct held_lock *hlock) +{ + return 1; +} + +static inline int separate_irq_context(struct task_struct *curr, + struct held_lock *hlock) +{ + return 0; +} + #endif /* + * Mark a lock with a usage bit, and validate the state transition: + */ +static int mark_lock(struct task_struct *curr, struct held_lock *this, + enum lock_usage_bit new_bit) +{ + unsigned int new_mask = 1 << new_bit, ret = 1; + + /* + * If already set then do not dirty the cacheline, + * nor do any checks: + */ + if (likely(this->class->usage_mask & new_mask)) + return 1; + + if (!graph_lock()) + return 0; + /* + * Make sure we didnt race: + */ + if (unlikely(this->class->usage_mask & new_mask)) { + graph_unlock(); + return 1; + } + + this->class->usage_mask |= new_mask; + + if (!save_trace(this->class->usage_traces + new_bit)) + return 0; + + switch (new_bit) { + case LOCK_USED_IN_HARDIRQ: + case LOCK_USED_IN_SOFTIRQ: + case LOCK_USED_IN_HARDIRQ_READ: + case LOCK_USED_IN_SOFTIRQ_READ: + case LOCK_ENABLED_HARDIRQS: + case LOCK_ENABLED_SOFTIRQS: + case LOCK_ENABLED_HARDIRQS_READ: + case LOCK_ENABLED_SOFTIRQS_READ: + ret = mark_lock_irq(curr, this, new_bit); + if (!ret) + return 0; + break; + case LOCK_USED: + /* + * Add it to the global list of classes: + */ + list_add_tail_rcu(&this->class->lock_entry, &all_lock_classes); + debug_atomic_dec(&nr_unused_locks); + break; + default: + if (!debug_locks_off_graph_unlock()) + return 0; + WARN_ON(1); + return 0; + } + + graph_unlock(); + + /* + * We must printk outside of the graph_lock: + */ + if (ret == 2) { + printk("\nmarked lock as {%s}:\n", usage_str[new_bit]); + print_lock(this); + print_irqtrace_events(curr); + dump_stack(); + } + + return ret; +} + +/* * Initialize a lock instance's lock-class mapping info: */ void lockdep_init_map(struct lockdep_map *lock, const char *name, @@ -1999,6 +2334,9 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name, lock->name = name; lock->key = key; lock->class_cache = NULL; +#ifdef CONFIG_LOCK_STAT + lock->cpu = raw_smp_processor_id(); +#endif if (subclass) register_lock_class(lock, subclass, 1); } @@ -2020,6 +2358,9 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, int chain_head = 0; u64 chain_key; + if (!prove_locking) + check = 1; + if (unlikely(!debug_locks)) return 0; @@ -2070,57 +2411,18 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass, hlock->read = read; hlock->check = check; hlock->hardirqs_off = hardirqs_off; - - if (check != 2) - goto out_calc_hash; -#ifdef CONFIG_TRACE_IRQFLAGS - /* - * If non-trylock use in a hardirq or softirq context, then - * mark the lock as used in these contexts: - */ - if (!trylock) { - if (read) { - if (curr->hardirq_context) - if (!mark_lock(curr, hlock, - LOCK_USED_IN_HARDIRQ_READ)) - return 0; - if (curr->softirq_context) - if (!mark_lock(curr, hlock, - LOCK_USED_IN_SOFTIRQ_READ)) - return 0; - } else { - if (curr->hardirq_context) - if (!mark_lock(curr, hlock, LOCK_USED_IN_HARDIRQ)) - return 0; - if (curr->softirq_context) - if (!mark_lock(curr, hlock, LOCK_USED_IN_SOFTIRQ)) - return 0; - } - } - if (!hardirqs_off) { - if (read) { - if (!mark_lock(curr, hlock, - LOCK_ENABLED_HARDIRQS_READ)) - return 0; - if (curr->softirqs_enabled) - if (!mark_lock(curr, hlock, - LOCK_ENABLED_SOFTIRQS_READ)) - return 0; - } else { - if (!mark_lock(curr, hlock, - LOCK_ENABLED_HARDIRQS)) - return 0; - if (curr->softirqs_enabled) - if (!mark_lock(curr, hlock, - LOCK_ENABLED_SOFTIRQS)) - return 0; - } - } +#ifdef CONFIG_LOCK_STAT + hlock->waittime_stamp = 0; + hlock->holdtime_stamp = sched_clock(); #endif + + if (check == 2 && !mark_irqflags(curr, hlock)) + return 0; + /* mark it as used: */ if (!mark_lock(curr, hlock, LOCK_USED)) return 0; -out_calc_hash: + /* * Calculate the chain hash: it's the combined has of all the * lock keys along the dependency chain. We save the hash value @@ -2143,77 +2445,15 @@ out_calc_hash: } hlock->prev_chain_key = chain_key; - -#ifdef CONFIG_TRACE_IRQFLAGS - /* - * Keep track of points where we cross into an interrupt context: - */ - hlock->irq_context = 2*(curr->hardirq_context ? 1 : 0) + - curr->softirq_context; - if (depth) { - struct held_lock *prev_hlock; - - prev_hlock = curr->held_locks + depth-1; - /* - * If we cross into another context, reset the - * hash key (this also prevents the checking and the - * adding of the dependency to 'prev'): - */ - if (prev_hlock->irq_context != hlock->irq_context) { - chain_key = 0; - chain_head = 1; - } + if (separate_irq_context(curr, hlock)) { + chain_key = 0; + chain_head = 1; } -#endif chain_key = iterate_chain_key(chain_key, id); curr->curr_chain_key = chain_key; - /* - * Trylock needs to maintain the stack of held locks, but it - * does not add new dependencies, because trylock can be done - * in any order. - * - * We look up the chain_key and do the O(N^2) check and update of - * the dependencies only if this is a new dependency chain. - * (If lookup_chain_cache() returns with 1 it acquires - * graph_lock for us) - */ - if (!trylock && (check == 2) && lookup_chain_cache(chain_key, class)) { - /* - * Check whether last held lock: - * - * - is irq-safe, if this lock is irq-unsafe - * - is softirq-safe, if this lock is hardirq-unsafe - * - * And check whether the new lock's dependency graph - * could lead back to the previous lock. - * - * any of these scenarios could lead to a deadlock. If - * All validations - */ - int ret = check_deadlock(curr, hlock, lock, read); - - if (!ret) - return 0; - /* - * Mark recursive read, as we jump over it when - * building dependencies (just like we jump over - * trylock entries): - */ - if (ret == 2) - hlock->read = 2; - /* - * Add dependency only if this lock is not the head - * of the chain, and if it's not a secondary read-lock: - */ - if (!chain_head && ret != 2) - if (!check_prevs_add(curr, hlock)) - return 0; - graph_unlock(); - } else - /* after lookup_chain_cache(): */ - if (unlikely(!debug_locks)) - return 0; + if (!validate_chain(curr, lock, hlock, chain_head)) + return 0; curr->lockdep_depth++; check_chain_key(curr); @@ -2315,6 +2555,8 @@ lock_release_non_nested(struct task_struct *curr, return print_unlock_inbalance_bug(curr, lock, ip); found_it: + lock_release_holdtime(hlock); + /* * We have the right lock to unlock, 'hlock' points to it. * Now we remove it from the stack, and add back the other @@ -2367,6 +2609,8 @@ static int lock_release_nested(struct task_struct *curr, curr->curr_chain_key = hlock->prev_chain_key; + lock_release_holdtime(hlock); + #ifdef CONFIG_DEBUG_LOCKDEP hlock->prev_chain_key = 0; hlock->class = NULL; @@ -2441,6 +2685,9 @@ void lock_acquire(struct lockdep_map *lock, unsigned int subclass, { unsigned long flags; + if (unlikely(!lock_stat && !prove_locking)) + return; + if (unlikely(current->lockdep_recursion)) return; @@ -2460,6 +2707,9 @@ void lock_release(struct lockdep_map *lock, int nested, unsigned long ip) { unsigned long flags; + if (unlikely(!lock_stat && !prove_locking)) + return; + if (unlikely(current->lockdep_recursion)) return; @@ -2473,6 +2723,166 @@ void lock_release(struct lockdep_map *lock, int nested, unsigned long ip) EXPORT_SYMBOL_GPL(lock_release); +#ifdef CONFIG_LOCK_STAT +static int +print_lock_contention_bug(struct task_struct *curr, struct lockdep_map *lock, + unsigned long ip) +{ + if (!debug_locks_off()) + return 0; + if (debug_locks_silent) + return 0; + + printk("\n=================================\n"); + printk( "[ BUG: bad contention detected! ]\n"); + printk( "---------------------------------\n"); + printk("%s/%d is trying to contend lock (", + curr->comm, curr->pid); + print_lockdep_cache(lock); + printk(") at:\n"); + print_ip_sym(ip); + printk("but there are no locks held!\n"); + printk("\nother info that might help us debug this:\n"); + lockdep_print_held_locks(curr); + + printk("\nstack backtrace:\n"); + dump_stack(); + + return 0; +} + +static void +__lock_contended(struct lockdep_map *lock, unsigned long ip) +{ + struct task_struct *curr = current; + struct held_lock *hlock, *prev_hlock; + struct lock_class_stats *stats; + unsigned int depth; + int i, point; + + depth = curr->lockdep_depth; + if (DEBUG_LOCKS_WARN_ON(!depth)) + return; + + prev_hlock = NULL; + for (i = depth-1; i >= 0; i--) { + hlock = curr->held_locks + i; + /* + * We must not cross into another context: + */ + if (prev_hlock && prev_hlock->irq_context != hlock->irq_context) + break; + if (hlock->instance == lock) + goto found_it; + prev_hlock = hlock; + } + print_lock_contention_bug(curr, lock, ip); + return; + +found_it: + hlock->waittime_stamp = sched_clock(); + + point = lock_contention_point(hlock->class, ip); + + stats = get_lock_stats(hlock->class); + if (point < ARRAY_SIZE(stats->contention_point)) + stats->contention_point[i]++; + if (lock->cpu != smp_processor_id()) + stats->bounces[bounce_contended + !!hlock->read]++; + put_lock_stats(stats); +} + +static void +__lock_acquired(struct lockdep_map *lock) +{ + struct task_struct *curr = current; + struct held_lock *hlock, *prev_hlock; + struct lock_class_stats *stats; + unsigned int depth; + u64 now; + s64 waittime = 0; + int i, cpu; + + depth = curr->lockdep_depth; + if (DEBUG_LOCKS_WARN_ON(!depth)) + return; + + prev_hlock = NULL; + for (i = depth-1; i >= 0; i--) { + hlock = curr->held_locks + i; + /* + * We must not cross into another context: + */ + if (prev_hlock && prev_hlock->irq_context != hlock->irq_context) + break; + if (hlock->instance == lock) + goto found_it; + prev_hlock = hlock; + } + print_lock_contention_bug(curr, lock, _RET_IP_); + return; + +found_it: + cpu = smp_processor_id(); + if (hlock->waittime_stamp) { + now = sched_clock(); + waittime = now - hlock->waittime_stamp; + hlock->holdtime_stamp = now; + } + + stats = get_lock_stats(hlock->class); + if (waittime) { + if (hlock->read) + lock_time_inc(&stats->read_waittime, waittime); + else + lock_time_inc(&stats->write_waittime, waittime); + } + if (lock->cpu != cpu) + stats->bounces[bounce_acquired + !!hlock->read]++; + put_lock_stats(stats); + + lock->cpu = cpu; +} + +void lock_contended(struct lockdep_map *lock, unsigned long ip) +{ + unsigned long flags; + + if (unlikely(!lock_stat)) + return; + + if (unlikely(current->lockdep_recursion)) + return; + + raw_local_irq_save(flags); + check_flags(flags); + current->lockdep_recursion = 1; + __lock_contended(lock, ip); + current->lockdep_recursion = 0; + raw_local_irq_restore(flags); +} +EXPORT_SYMBOL_GPL(lock_contended); + +void lock_acquired(struct lockdep_map *lock) +{ + unsigned long flags; + + if (unlikely(!lock_stat)) + return; + + if (unlikely(current->lockdep_recursion)) + return; + + raw_local_irq_save(flags); + check_flags(flags); + current->lockdep_recursion = 1; + __lock_acquired(lock); + current->lockdep_recursion = 0; + raw_local_irq_restore(flags); +} +EXPORT_SYMBOL_GPL(lock_acquired); +#endif + /* * Used by the testsuite, sanitize the validator state * after a simulated failure: @@ -2636,8 +3046,11 @@ void __init lockdep_info(void) sizeof(struct held_lock) * MAX_LOCK_DEPTH); #ifdef CONFIG_DEBUG_LOCKDEP - if (lockdep_init_error) - printk("WARNING: lockdep init error! Arch code didnt call lockdep_init() early enough?\n"); + if (lockdep_init_error) { + printk("WARNING: lockdep init error! Arch code didn't call lockdep_init() early enough?\n"); + printk("Call stack leading to lockdep invocation was:\n"); + print_stack_trace(&lockdep_init_trace, 0); + } #endif } diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c index 58f35e586ee3..9f17af4a2490 100644 --- a/kernel/lockdep_proc.c +++ b/kernel/lockdep_proc.c @@ -5,7 +5,8 @@ * * Started by Ingo Molnar: * - * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> + * Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> + * Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> * * Code for /proc/lockdep and /proc/lockdep_stats: * @@ -15,6 +16,10 @@ #include <linux/seq_file.h> #include <linux/kallsyms.h> #include <linux/debug_locks.h> +#include <linux/vmalloc.h> +#include <linux/sort.h> +#include <asm/uaccess.h> +#include <asm/div64.h> #include "lockdep_internals.h" @@ -271,8 +276,10 @@ static int lockdep_stats_show(struct seq_file *m, void *v) if (nr_list_entries) factor = sum_forward_deps / nr_list_entries; +#ifdef CONFIG_PROVE_LOCKING seq_printf(m, " dependency chains: %11lu [max: %lu]\n", nr_lock_chains, MAX_LOCKDEP_CHAINS); +#endif #ifdef CONFIG_TRACE_IRQFLAGS seq_printf(m, " in-hardirq chains: %11u\n", @@ -342,6 +349,292 @@ static const struct file_operations proc_lockdep_stats_operations = { .release = seq_release, }; +#ifdef CONFIG_LOCK_STAT + +struct lock_stat_data { + struct lock_class *class; + struct lock_class_stats stats; +}; + +struct lock_stat_seq { + struct lock_stat_data *iter; + struct lock_stat_data *iter_end; + struct lock_stat_data stats[MAX_LOCKDEP_KEYS]; +}; + +/* + * sort on absolute number of contentions + */ +static int lock_stat_cmp(const void *l, const void *r) +{ + const struct lock_stat_data *dl = l, *dr = r; + unsigned long nl, nr; + + nl = dl->stats.read_waittime.nr + dl->stats.write_waittime.nr; + nr = dr->stats.read_waittime.nr + dr->stats.write_waittime.nr; + + return nr - nl; +} + +static void seq_line(struct seq_file *m, char c, int offset, int length) +{ + int i; + + for (i = 0; i < offset; i++) + seq_puts(m, " "); + for (i = 0; i < length; i++) + seq_printf(m, "%c", c); + seq_puts(m, "\n"); +} + +static void snprint_time(char *buf, size_t bufsiz, s64 nr) +{ + unsigned long rem; + + rem = do_div(nr, 1000); /* XXX: do_div_signed */ + snprintf(buf, bufsiz, "%lld.%02d", (long long)nr, ((int)rem+5)/10); +} + +static void seq_time(struct seq_file *m, s64 time) +{ + char num[15]; + + snprint_time(num, sizeof(num), time); + seq_printf(m, " %14s", num); +} + +static void seq_lock_time(struct seq_file *m, struct lock_time *lt) +{ + seq_printf(m, "%14lu", lt->nr); + seq_time(m, lt->min); + seq_time(m, lt->max); + seq_time(m, lt->total); +} + +static void seq_stats(struct seq_file *m, struct lock_stat_data *data) +{ + char name[39]; + struct lock_class *class; + struct lock_class_stats *stats; + int i, namelen; + + class = data->class; + stats = &data->stats; + + namelen = 38; + if (class->name_version > 1) + namelen -= 2; /* XXX truncates versions > 9 */ + if (class->subclass) + namelen -= 2; + + if (!class->name) { + char str[KSYM_NAME_LEN]; + const char *key_name; + + key_name = __get_key_name(class->key, str); + snprintf(name, namelen, "%s", key_name); + } else { + snprintf(name, namelen, "%s", class->name); + } + namelen = strlen(name); + if (class->name_version > 1) { + snprintf(name+namelen, 3, "#%d", class->name_version); + namelen += 2; + } + if (class->subclass) { + snprintf(name+namelen, 3, "/%d", class->subclass); + namelen += 2; + } + + if (stats->write_holdtime.nr) { + if (stats->read_holdtime.nr) + seq_printf(m, "%38s-W:", name); + else + seq_printf(m, "%40s:", name); + + seq_printf(m, "%14lu ", stats->bounces[bounce_contended_write]); + seq_lock_time(m, &stats->write_waittime); + seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_write]); + seq_lock_time(m, &stats->write_holdtime); + seq_puts(m, "\n"); + } + + if (stats->read_holdtime.nr) { + seq_printf(m, "%38s-R:", name); + seq_printf(m, "%14lu ", stats->bounces[bounce_contended_read]); + seq_lock_time(m, &stats->read_waittime); + seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_read]); + seq_lock_time(m, &stats->read_holdtime); + seq_puts(m, "\n"); + } + + if (stats->read_waittime.nr + stats->write_waittime.nr == 0) + return; + + if (stats->read_holdtime.nr) + namelen += 2; + + for (i = 0; i < ARRAY_SIZE(class->contention_point); i++) { + char sym[KSYM_SYMBOL_LEN]; + char ip[32]; + + if (class->contention_point[i] == 0) + break; + + if (!i) + seq_line(m, '-', 40-namelen, namelen); + + sprint_symbol(sym, class->contention_point[i]); + snprintf(ip, sizeof(ip), "[<%p>]", + (void *)class->contention_point[i]); + seq_printf(m, "%40s %14lu %29s %s\n", name, + stats->contention_point[i], + ip, sym); + } + if (i) { + seq_puts(m, "\n"); + seq_line(m, '.', 0, 40 + 1 + 10 * (14 + 1)); + seq_puts(m, "\n"); + } +} + +static void seq_header(struct seq_file *m) +{ + seq_printf(m, "lock_stat version 0.2\n"); + seq_line(m, '-', 0, 40 + 1 + 10 * (14 + 1)); + seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s " + "%14s %14s\n", + "class name", + "con-bounces", + "contentions", + "waittime-min", + "waittime-max", + "waittime-total", + "acq-bounces", + "acquisitions", + "holdtime-min", + "holdtime-max", + "holdtime-total"); + seq_line(m, '-', 0, 40 + 1 + 10 * (14 + 1)); + seq_printf(m, "\n"); +} + +static void *ls_start(struct seq_file *m, loff_t *pos) +{ + struct lock_stat_seq *data = m->private; + + if (data->iter == data->stats) + seq_header(m); + + if (data->iter == data->iter_end) + data->iter = NULL; + + return data->iter; +} + +static void *ls_next(struct seq_file *m, void *v, loff_t *pos) +{ + struct lock_stat_seq *data = m->private; + + (*pos)++; + + data->iter = v; + data->iter++; + if (data->iter == data->iter_end) + data->iter = NULL; + + return data->iter; +} + +static void ls_stop(struct seq_file *m, void *v) +{ +} + +static int ls_show(struct seq_file *m, void *v) +{ + struct lock_stat_seq *data = m->private; + + seq_stats(m, data->iter); + return 0; +} + +static struct seq_operations lockstat_ops = { + .start = ls_start, + .next = ls_next, + .stop = ls_stop, + .show = ls_show, +}; + +static int lock_stat_open(struct inode *inode, struct file *file) +{ + int res; + struct lock_class *class; + struct lock_stat_seq *data = vmalloc(sizeof(struct lock_stat_seq)); + + if (!data) + return -ENOMEM; + + res = seq_open(file, &lockstat_ops); + if (!res) { + struct lock_stat_data *iter = data->stats; + struct seq_file *m = file->private_data; + + data->iter = iter; + list_for_each_entry(class, &all_lock_classes, lock_entry) { + iter->class = class; + iter->stats = lock_stats(class); + iter++; + } + data->iter_end = iter; + + sort(data->stats, data->iter_end - data->iter, + sizeof(struct lock_stat_data), + lock_stat_cmp, NULL); + + m->private = data; + } else + vfree(data); + + return res; +} + +static ssize_t lock_stat_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct lock_class *class; + char c; + + if (count) { + if (get_user(c, buf)) + return -EFAULT; + + if (c != '0') + return count; + + list_for_each_entry(class, &all_lock_classes, lock_entry) + clear_lock_stats(class); + } + return count; +} + +static int lock_stat_release(struct inode *inode, struct file *file) +{ + struct seq_file *seq = file->private_data; + + vfree(seq->private); + seq->private = NULL; + return seq_release(inode, file); +} + +static const struct file_operations proc_lock_stat_operations = { + .open = lock_stat_open, + .write = lock_stat_write, + .read = seq_read, + .llseek = seq_lseek, + .release = lock_stat_release, +}; +#endif /* CONFIG_LOCK_STAT */ + static int __init lockdep_proc_init(void) { struct proc_dir_entry *entry; @@ -354,6 +647,12 @@ static int __init lockdep_proc_init(void) if (entry) entry->proc_fops = &proc_lockdep_stats_operations; +#ifdef CONFIG_LOCK_STAT + entry = create_proc_entry("lock_stat", S_IRUSR, NULL); + if (entry) + entry->proc_fops = &proc_lock_stat_operations; +#endif + return 0; } diff --git a/kernel/module.c b/kernel/module.c index 539fed9ac83c..33c04ad51175 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2133,7 +2133,7 @@ int lookup_module_symbol_name(unsigned long addr, char *symname) sym = get_ksymbol(mod, addr, NULL, NULL); if (!sym) goto out; - strlcpy(symname, sym, KSYM_NAME_LEN + 1); + strlcpy(symname, sym, KSYM_NAME_LEN); mutex_unlock(&module_mutex); return 0; } @@ -2158,9 +2158,9 @@ int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, if (!sym) goto out; if (modname) - strlcpy(modname, mod->name, MODULE_NAME_LEN + 1); + strlcpy(modname, mod->name, MODULE_NAME_LEN); if (name) - strlcpy(name, sym, KSYM_NAME_LEN + 1); + strlcpy(name, sym, KSYM_NAME_LEN); mutex_unlock(&module_mutex); return 0; } @@ -2181,8 +2181,8 @@ int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type, *value = mod->symtab[symnum].st_value; *type = mod->symtab[symnum].st_info; strlcpy(name, mod->strtab + mod->symtab[symnum].st_name, - KSYM_NAME_LEN + 1); - strlcpy(module_name, mod->name, MODULE_NAME_LEN + 1); + KSYM_NAME_LEN); + strlcpy(module_name, mod->name, MODULE_NAME_LEN); *exported = is_exported(name, mod); mutex_unlock(&module_mutex); return 0; diff --git a/kernel/mutex.c b/kernel/mutex.c index 303eab18484b..691b86564dd9 100644 --- a/kernel/mutex.c +++ b/kernel/mutex.c @@ -139,6 +139,12 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass) list_add_tail(&waiter.list, &lock->wait_list); waiter.task = task; + old_val = atomic_xchg(&lock->count, -1); + if (old_val == 1) + goto done; + + lock_contended(&lock->dep_map, _RET_IP_); + for (;;) { /* * Lets try to take the lock again - this is needed even if @@ -174,6 +180,8 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass) spin_lock_mutex(&lock->wait_lock, flags); } +done: + lock_acquired(&lock->dep_map); /* got the lock - rejoice! */ mutex_remove_waiter(lock, &waiter, task_thread_info(task)); debug_mutex_set_owner(lock, task_thread_info(task)); diff --git a/kernel/panic.c b/kernel/panic.c index 623d1828259a..f64f4c1ac11f 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -159,14 +159,15 @@ const char *print_tainted(void) { static char buf[20]; if (tainted) { - snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c", + snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c", tainted & TAINT_PROPRIETARY_MODULE ? 'P' : 'G', tainted & TAINT_FORCED_MODULE ? 'F' : ' ', tainted & TAINT_UNSAFE_SMP ? 'S' : ' ', tainted & TAINT_FORCED_RMMOD ? 'R' : ' ', tainted & TAINT_MACHINE_CHECK ? 'M' : ' ', tainted & TAINT_BAD_PAGE ? 'B' : ' ', - tainted & TAINT_USER ? 'U' : ' '); + tainted & TAINT_USER ? 'U' : ' ', + tainted & TAINT_DIE ? 'D' : ' '); } else snprintf(buf, sizeof(buf), "Not tainted"); diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 495b7d4dd330..7358609e4735 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -33,13 +33,20 @@ config PM_DEBUG bool "Power Management Debug Support" depends on PM ---help--- - This option enables verbose debugging support in the Power Management - code. This is helpful when debugging and reporting various PM bugs, - like suspend support. + This option enables various debugging support in the Power Management + code. This is helpful when debugging and reporting PM bugs, like + suspend support. + +config PM_VERBOSE + bool "Verbose Power Management debugging" + depends on PM_DEBUG + default n + ---help--- + This option enables verbose messages from the Power Management code. config DISABLE_CONSOLE_SUSPEND bool "Keep console(s) enabled during suspend/resume (DANGEROUS)" - depends on PM && PM_DEBUG + depends on PM_DEBUG default n ---help--- This option turns off the console suspend mechanism that prevents @@ -50,7 +57,7 @@ config DISABLE_CONSOLE_SUSPEND config PM_TRACE bool "Suspend/resume event tracing" - depends on PM && PM_DEBUG && X86_32 && EXPERIMENTAL + depends on PM_DEBUG && X86_32 && EXPERIMENTAL default n ---help--- This enables some cheesy code to save the last PM event point in the @@ -65,18 +72,6 @@ config PM_TRACE CAUTION: this option will cause your machine's real-time clock to be set to an invalid time after a resume. -config PM_SYSFS_DEPRECATED - bool "Driver model /sys/devices/.../power/state files (DEPRECATED)" - depends on PM && SYSFS - default n - help - The driver model started out with a sysfs file intended to provide - a userspace hook for device power management. This feature has never - worked very well, except for limited testing purposes, and so it will - be removed. It's not clear that a generic mechanism could really - handle the wide variability of device power states; any replacements - are likely to be bus or driver specific. - config SOFTWARE_SUSPEND bool "Software Suspend (Hibernation)" depends on PM && SWAP && (((X86 || PPC64_SWSUSP) && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)) diff --git a/kernel/power/disk.c b/kernel/power/disk.c index f445b9cd60fb..324ac0188ce1 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c @@ -45,7 +45,7 @@ enum { static int hibernation_mode = HIBERNATION_SHUTDOWN; -struct hibernation_ops *hibernation_ops; +static struct hibernation_ops *hibernation_ops; /** * hibernation_set_ops - set the global hibernate operations @@ -54,7 +54,8 @@ struct hibernation_ops *hibernation_ops; void hibernation_set_ops(struct hibernation_ops *ops) { - if (ops && !(ops->prepare && ops->enter && ops->finish)) { + if (ops && !(ops->prepare && ops->enter && ops->finish + && ops->pre_restore && ops->restore_cleanup)) { WARN_ON(1); return; } @@ -74,9 +75,9 @@ void hibernation_set_ops(struct hibernation_ops *ops) * platform driver if so configured and return an error code if it fails */ -static int platform_prepare(void) +static int platform_prepare(int platform_mode) { - return (hibernation_mode == HIBERNATION_PLATFORM && hibernation_ops) ? + return (platform_mode && hibernation_ops) ? hibernation_ops->prepare() : 0; } @@ -85,13 +86,145 @@ static int platform_prepare(void) * using the platform driver (must be called after platform_prepare()) */ -static void platform_finish(void) +static void platform_finish(int platform_mode) { - if (hibernation_mode == HIBERNATION_PLATFORM && hibernation_ops) + if (platform_mode && hibernation_ops) hibernation_ops->finish(); } /** + * platform_pre_restore - prepare the platform for the restoration from a + * hibernation image. If the restore fails after this function has been + * called, platform_restore_cleanup() must be called. + */ + +static int platform_pre_restore(int platform_mode) +{ + return (platform_mode && hibernation_ops) ? + hibernation_ops->pre_restore() : 0; +} + +/** + * platform_restore_cleanup - switch the platform to the normal mode of + * operation after a failing restore. If platform_pre_restore() has been + * called before the failing restore, this function must be called too, + * regardless of the result of platform_pre_restore(). + */ + +static void platform_restore_cleanup(int platform_mode) +{ + if (platform_mode && hibernation_ops) + hibernation_ops->restore_cleanup(); +} + +/** + * hibernation_snapshot - quiesce devices and create the hibernation + * snapshot image. + * @platform_mode - if set, use the platform driver, if available, to + * prepare the platform frimware for the power transition. + * + * Must be called with pm_mutex held + */ + +int hibernation_snapshot(int platform_mode) +{ + int error; + + /* Free memory before shutting down devices. */ + error = swsusp_shrink_memory(); + if (error) + return error; + + suspend_console(); + error = device_suspend(PMSG_FREEZE); + if (error) + goto Resume_console; + + error = platform_prepare(platform_mode); + if (error) + goto Resume_devices; + + error = disable_nonboot_cpus(); + if (!error) { + if (hibernation_mode != HIBERNATION_TEST) { + in_suspend = 1; + error = swsusp_suspend(); + /* Control returns here after successful restore */ + } else { + printk("swsusp debug: Waiting for 5 seconds.\n"); + mdelay(5000); + } + } + enable_nonboot_cpus(); + Resume_devices: + platform_finish(platform_mode); + device_resume(); + Resume_console: + resume_console(); + return error; +} + +/** + * hibernation_restore - quiesce devices and restore the hibernation + * snapshot image. If successful, control returns in hibernation_snaphot() + * @platform_mode - if set, use the platform driver, if available, to + * prepare the platform frimware for the transition. + * + * Must be called with pm_mutex held + */ + +int hibernation_restore(int platform_mode) +{ + int error; + + pm_prepare_console(); + suspend_console(); + error = device_suspend(PMSG_PRETHAW); + if (error) + goto Finish; + + error = platform_pre_restore(platform_mode); + if (!error) { + error = disable_nonboot_cpus(); + if (!error) + error = swsusp_resume(); + enable_nonboot_cpus(); + } + platform_restore_cleanup(platform_mode); + device_resume(); + Finish: + resume_console(); + pm_restore_console(); + return error; +} + +/** + * hibernation_platform_enter - enter the hibernation state using the + * platform driver (if available) + */ + +int hibernation_platform_enter(void) +{ + int error; + + if (hibernation_ops) { + kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK); + /* + * We have cancelled the power transition by running + * hibernation_ops->finish() before saving the image, so we + * should let the firmware know that we're going to enter the + * sleep state after all + */ + error = hibernation_ops->prepare(); + if (!error) + error = hibernation_ops->enter(); + } else { + error = -ENOSYS; + } + return error; +} + +/** * power_down - Shut the machine down for hibernation. * * Use the platform driver, if configured so; otherwise try @@ -111,11 +244,7 @@ static void power_down(void) kernel_restart(NULL); break; case HIBERNATION_PLATFORM: - if (hibernation_ops) { - kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK); - hibernation_ops->enter(); - break; - } + hibernation_platform_enter(); } kernel_halt(); /* @@ -152,9 +281,16 @@ int hibernate(void) { int error; + mutex_lock(&pm_mutex); /* The snapshot device should not be opened while we're running */ - if (!atomic_add_unless(&snapshot_device_available, -1, 0)) - return -EBUSY; + if (!atomic_add_unless(&snapshot_device_available, -1, 0)) { + error = -EBUSY; + goto Unlock; + } + + error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE); + if (error) + goto Exit; /* Allocate memory management structures */ error = create_basic_memory_bitmaps(); @@ -165,75 +301,35 @@ int hibernate(void) if (error) goto Finish; - mutex_lock(&pm_mutex); if (hibernation_mode == HIBERNATION_TESTPROC) { printk("swsusp debug: Waiting for 5 seconds.\n"); mdelay(5000); goto Thaw; } + error = hibernation_snapshot(hibernation_mode == HIBERNATION_PLATFORM); + if (in_suspend && !error) { + unsigned int flags = 0; - /* Free memory before shutting down devices. */ - error = swsusp_shrink_memory(); - if (error) - goto Thaw; - - error = platform_prepare(); - if (error) - goto Thaw; - - suspend_console(); - error = device_suspend(PMSG_FREEZE); - if (error) { - printk(KERN_ERR "PM: Some devices failed to suspend\n"); - goto Resume_devices; - } - error = disable_nonboot_cpus(); - if (error) - goto Enable_cpus; - - if (hibernation_mode == HIBERNATION_TEST) { - printk("swsusp debug: Waiting for 5 seconds.\n"); - mdelay(5000); - goto Enable_cpus; - } - - pr_debug("PM: snapshotting memory.\n"); - in_suspend = 1; - error = swsusp_suspend(); - if (error) - goto Enable_cpus; - - if (in_suspend) { - enable_nonboot_cpus(); - platform_finish(); - device_resume(); - resume_console(); + if (hibernation_mode == HIBERNATION_PLATFORM) + flags |= SF_PLATFORM_MODE; pr_debug("PM: writing image.\n"); - error = swsusp_write(); + error = swsusp_write(flags); + swsusp_free(); if (!error) power_down(); - else { - swsusp_free(); - goto Thaw; - } } else { pr_debug("PM: Image restored successfully.\n"); + swsusp_free(); } - - swsusp_free(); - Enable_cpus: - enable_nonboot_cpus(); - Resume_devices: - platform_finish(); - device_resume(); - resume_console(); Thaw: - mutex_unlock(&pm_mutex); unprepare_processes(); Finish: free_basic_memory_bitmaps(); Exit: + pm_notifier_call_chain(PM_POST_HIBERNATION); atomic_inc(&snapshot_device_available); + Unlock: + mutex_unlock(&pm_mutex); return error; } @@ -253,6 +349,7 @@ int hibernate(void) static int software_resume(void) { int error; + unsigned int flags; mutex_lock(&pm_mutex); if (!swsusp_resume_device) { @@ -300,30 +397,12 @@ static int software_resume(void) pr_debug("PM: Reading swsusp image.\n"); - error = swsusp_read(); - if (error) { - swsusp_free(); - goto Thaw; - } - - pr_debug("PM: Preparing devices for restore.\n"); - - suspend_console(); - error = device_suspend(PMSG_PRETHAW); - if (error) - goto Free; - - error = disable_nonboot_cpus(); + error = swsusp_read(&flags); if (!error) - swsusp_resume(); + hibernation_restore(flags & SF_PLATFORM_MODE); - enable_nonboot_cpus(); - Free: - swsusp_free(); - device_resume(); - resume_console(); - Thaw: printk(KERN_ERR "PM: Restore failed, recovering.\n"); + swsusp_free(); unprepare_processes(); Done: free_basic_memory_bitmaps(); @@ -333,7 +412,7 @@ static int software_resume(void) Unlock: mutex_unlock(&pm_mutex); pr_debug("PM: Resume from disk failed.\n"); - return 0; + return error; } late_initcall(software_resume); diff --git a/kernel/power/main.c b/kernel/power/main.c index fc45ed22620f..32147b57c3bf 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -23,6 +23,8 @@ #include "power.h" +BLOCKING_NOTIFIER_HEAD(pm_chain_head); + /*This is just an arbitrary number */ #define FREE_PAGE_NUMBER (100) @@ -63,14 +65,11 @@ static inline void pm_finish(suspend_state_t state) /** * suspend_prepare - Do prep work before entering low-power state. - * @state: State we're entering. * - * This is common code that is called for each state that we're - * entering. Allocate a console, stop all processes, then make sure - * the platform can enter the requested state. + * This is common code that is called for each state that we're entering. + * Run suspend notifiers, allocate a console and stop all processes. */ - -static int suspend_prepare(suspend_state_t state) +static int suspend_prepare(void) { int error; unsigned int free_pages; @@ -78,6 +77,10 @@ static int suspend_prepare(suspend_state_t state) if (!pm_ops || !pm_ops->enter) return -EPERM; + error = pm_notifier_call_chain(PM_SUSPEND_PREPARE); + if (error) + goto Finish; + pm_prepare_console(); if (freeze_processes()) { @@ -85,46 +88,23 @@ static int suspend_prepare(suspend_state_t state) goto Thaw; } - if ((free_pages = global_page_state(NR_FREE_PAGES)) - < FREE_PAGE_NUMBER) { + free_pages = global_page_state(NR_FREE_PAGES); + if (free_pages < FREE_PAGE_NUMBER) { pr_debug("PM: free some memory\n"); shrink_all_memory(FREE_PAGE_NUMBER - free_pages); if (nr_free_pages() < FREE_PAGE_NUMBER) { error = -ENOMEM; printk(KERN_ERR "PM: No enough memory\n"); - goto Thaw; } } - - if (pm_ops->set_target) { - error = pm_ops->set_target(state); - if (error) - goto Thaw; - } - suspend_console(); - error = device_suspend(PMSG_SUSPEND); - if (error) { - printk(KERN_ERR "Some devices failed to suspend\n"); - goto Resume_console; - } - if (pm_ops->prepare) { - if ((error = pm_ops->prepare(state))) - goto Resume_devices; - } - - error = disable_nonboot_cpus(); if (!error) return 0; - enable_nonboot_cpus(); - pm_finish(state); - Resume_devices: - device_resume(); - Resume_console: - resume_console(); Thaw: thaw_processes(); pm_restore_console(); + Finish: + pm_notifier_call_chain(PM_POST_SUSPEND); return error; } @@ -140,6 +120,12 @@ void __attribute__ ((weak)) arch_suspend_enable_irqs(void) local_irq_enable(); } +/** + * suspend_enter - enter the desired system sleep state. + * @state: state to enter + * + * This function should be called after devices have been suspended. + */ int suspend_enter(suspend_state_t state) { int error = 0; @@ -159,23 +145,58 @@ int suspend_enter(suspend_state_t state) return error; } +/** + * suspend_devices_and_enter - suspend devices and enter the desired system sleep + * state. + * @state: state to enter + */ +int suspend_devices_and_enter(suspend_state_t state) +{ + int error; + + if (!pm_ops) + return -ENOSYS; + + if (pm_ops->set_target) { + error = pm_ops->set_target(state); + if (error) + return error; + } + suspend_console(); + error = device_suspend(PMSG_SUSPEND); + if (error) { + printk(KERN_ERR "Some devices failed to suspend\n"); + goto Resume_console; + } + if (pm_ops->prepare) { + error = pm_ops->prepare(state); + if (error) + goto Resume_devices; + } + error = disable_nonboot_cpus(); + if (!error) + suspend_enter(state); + + enable_nonboot_cpus(); + pm_finish(state); + Resume_devices: + device_resume(); + Resume_console: + resume_console(); + return error; +} /** * suspend_finish - Do final work before exiting suspend sequence. - * @state: State we're coming out of. * * Call platform code to clean up, restart processes, and free the * console that we've allocated. This is not called for suspend-to-disk. */ - -static void suspend_finish(suspend_state_t state) +static void suspend_finish(void) { - enable_nonboot_cpus(); - pm_finish(state); - device_resume(); - resume_console(); thaw_processes(); pm_restore_console(); + pm_notifier_call_chain(PM_POST_SUSPEND); } @@ -207,7 +228,6 @@ static inline int valid_state(suspend_state_t state) * Then, do the setup for suspend, enter the state, and cleaup (after * we've woken up). */ - static int enter_state(suspend_state_t state) { int error; @@ -218,14 +238,14 @@ static int enter_state(suspend_state_t state) return -EBUSY; pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]); - if ((error = suspend_prepare(state))) + if ((error = suspend_prepare())) goto Unlock; pr_debug("PM: Entering %s sleep\n", pm_states[state]); - error = suspend_enter(state); + error = suspend_devices_and_enter(state); pr_debug("PM: Finishing wakeup.\n"); - suspend_finish(state); + suspend_finish(); Unlock: mutex_unlock(&pm_mutex); return error; diff --git a/kernel/power/power.h b/kernel/power/power.h index 51381487103f..5f24c786f8ec 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -25,7 +25,10 @@ struct swsusp_info { */ #define SPARE_PAGES ((1024 * 1024) >> PAGE_SHIFT) -extern struct hibernation_ops *hibernation_ops; +/* kernel/power/disk.c */ +extern int hibernation_snapshot(int platform_mode); +extern int hibernation_restore(int platform_mode); +extern int hibernation_platform_enter(void); #endif extern int pfn_is_nosave(unsigned long); @@ -152,16 +155,34 @@ extern sector_t alloc_swapdev_block(int swap); extern void free_all_swap_pages(int swap); extern int swsusp_swap_in_use(void); +/* + * Flags that can be passed from the hibernatig hernel to the "boot" kernel in + * the image header. + */ +#define SF_PLATFORM_MODE 1 + +/* kernel/power/disk.c */ extern int swsusp_check(void); extern int swsusp_shrink_memory(void); extern void swsusp_free(void); extern int swsusp_suspend(void); extern int swsusp_resume(void); -extern int swsusp_read(void); -extern int swsusp_write(void); +extern int swsusp_read(unsigned int *flags_p); +extern int swsusp_write(unsigned int flags); extern void swsusp_close(void); -extern int suspend_enter(suspend_state_t state); struct timeval; +/* kernel/power/swsusp.c */ extern void swsusp_show_speed(struct timeval *, struct timeval *, unsigned int, char *); + +/* kernel/power/main.c */ +extern int suspend_enter(suspend_state_t state); +extern int suspend_devices_and_enter(suspend_state_t state); +extern struct blocking_notifier_head pm_chain_head; + +static inline int pm_notifier_call_chain(unsigned long val) +{ + return (blocking_notifier_call_chain(&pm_chain_head, val, NULL) + == NOTIFY_BAD) ? -EINVAL : 0; +} diff --git a/kernel/power/process.c b/kernel/power/process.c index e0233d8422b9..3434940a3df1 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -40,7 +40,7 @@ static inline void frozen_process(void) current->flags |= PF_FROZEN; wmb(); } - clear_tsk_thread_flag(current, TIF_FREEZE); + clear_freeze_flag(current); } /* Refrigerator is place where frozen processes are stored :-). */ @@ -72,20 +72,19 @@ void refrigerator(void) schedule(); } pr_debug("%s left refrigerator\n", current->comm); - current->state = save; + __set_current_state(save); } -static inline void freeze_process(struct task_struct *p) +static void freeze_task(struct task_struct *p) { unsigned long flags; if (!freezing(p)) { rmb(); if (!frozen(p)) { + set_freeze_flag(p); if (p->state == TASK_STOPPED) force_sig_specific(SIGSTOP, p); - - freeze(p); spin_lock_irqsave(&p->sighand->siglock, flags); signal_wake_up(p, p->state == TASK_STOPPED); spin_unlock_irqrestore(&p->sighand->siglock, flags); @@ -99,19 +98,14 @@ static void cancel_freezing(struct task_struct *p) if (freezing(p)) { pr_debug(" clean up: %s\n", p->comm); - do_not_freeze(p); + clear_freeze_flag(p); spin_lock_irqsave(&p->sighand->siglock, flags); recalc_sigpending_and_wake(p); spin_unlock_irqrestore(&p->sighand->siglock, flags); } } -static inline int is_user_space(struct task_struct *p) -{ - return p->mm && !(p->flags & PF_BORROWED_MM); -} - -static unsigned int try_to_freeze_tasks(int freeze_user_space) +static int try_to_freeze_tasks(int freeze_user_space) { struct task_struct *g, *p; unsigned long end_time; @@ -122,26 +116,40 @@ static unsigned int try_to_freeze_tasks(int freeze_user_space) todo = 0; read_lock(&tasklist_lock); do_each_thread(g, p) { - if (!freezeable(p)) + if (frozen(p) || !freezeable(p)) continue; - if (frozen(p)) - continue; - - if (p->state == TASK_TRACED && frozen(p->parent)) { - cancel_freezing(p); - continue; + if (freeze_user_space) { + if (p->state == TASK_TRACED && + frozen(p->parent)) { + cancel_freezing(p); + continue; + } + /* + * Kernel threads should not have TIF_FREEZE set + * at this point, so we must ensure that either + * p->mm is not NULL *and* PF_BORROWED_MM is + * unset, or TIF_FRREZE is left unset. + * The task_lock() is necessary to prevent races + * with exit_mm() or use_mm()/unuse_mm() from + * occuring. + */ + task_lock(p); + if (!p->mm || (p->flags & PF_BORROWED_MM)) { + task_unlock(p); + continue; + } + freeze_task(p); + task_unlock(p); + } else { + freeze_task(p); } - if (freeze_user_space && !is_user_space(p)) - continue; - - freeze_process(p); if (!freezer_should_skip(p)) todo++; } while_each_thread(g, p); read_unlock(&tasklist_lock); yield(); /* Yield is okay here */ - if (todo && time_after(jiffies, end_time)) + if (time_after(jiffies, end_time)) break; } while (todo); @@ -152,49 +160,41 @@ static unsigned int try_to_freeze_tasks(int freeze_user_space) * but it cleans up leftover PF_FREEZE requests. */ printk("\n"); - printk(KERN_ERR "Stopping %s timed out after %d seconds " + printk(KERN_ERR "Freezing of %s timed out after %d seconds " "(%d tasks refusing to freeze):\n", - freeze_user_space ? "user space processes" : - "kernel threads", + freeze_user_space ? "user space " : "tasks ", TIMEOUT / HZ, todo); + show_state(); read_lock(&tasklist_lock); do_each_thread(g, p) { - if (freeze_user_space && !is_user_space(p)) - continue; - task_lock(p); - if (freezeable(p) && !frozen(p) && - !freezer_should_skip(p)) + if (freezing(p) && !freezer_should_skip(p)) printk(KERN_ERR " %s\n", p->comm); - cancel_freezing(p); task_unlock(p); } while_each_thread(g, p); read_unlock(&tasklist_lock); } - return todo; + return todo ? -EBUSY : 0; } /** * freeze_processes - tell processes to enter the refrigerator - * - * Returns 0 on success, or the number of processes that didn't freeze, - * although they were told to. */ int freeze_processes(void) { - unsigned int nr_unfrozen; + int error; printk("Stopping tasks ... "); - nr_unfrozen = try_to_freeze_tasks(FREEZER_USER_SPACE); - if (nr_unfrozen) - return nr_unfrozen; + error = try_to_freeze_tasks(FREEZER_USER_SPACE); + if (error) + return error; sys_sync(); - nr_unfrozen = try_to_freeze_tasks(FREEZER_KERNEL_THREADS); - if (nr_unfrozen) - return nr_unfrozen; + error = try_to_freeze_tasks(FREEZER_KERNEL_THREADS); + if (error) + return error; printk("done.\n"); BUG_ON(in_atomic()); @@ -210,7 +210,7 @@ static void thaw_tasks(int thaw_user_space) if (!freezeable(p)) continue; - if (is_user_space(p) == !thaw_user_space) + if (!p->mm == thaw_user_space) continue; thaw_process(p); diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 8b1a1b837145..917aba100575 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -33,8 +33,9 @@ extern char resume_file[]; #define SWSUSP_SIG "S1SUSPEND" struct swsusp_header { - char reserved[PAGE_SIZE - 20 - sizeof(sector_t)]; + char reserved[PAGE_SIZE - 20 - sizeof(sector_t) - sizeof(int)]; sector_t image; + unsigned int flags; /* Flags to pass to the "boot" kernel */ char orig_sig[10]; char sig[10]; } __attribute__((packed)); @@ -138,7 +139,7 @@ static int wait_on_bio_chain(struct bio **bio_chain) * Saving part */ -static int mark_swapfiles(sector_t start) +static int mark_swapfiles(sector_t start, unsigned int flags) { int error; @@ -148,6 +149,7 @@ static int mark_swapfiles(sector_t start) memcpy(swsusp_header->orig_sig,swsusp_header->sig, 10); memcpy(swsusp_header->sig,SWSUSP_SIG, 10); swsusp_header->image = start; + swsusp_header->flags = flags; error = bio_write_page(swsusp_resume_block, swsusp_header, NULL); } else { @@ -369,6 +371,7 @@ static int enough_swap(unsigned int nr_pages) /** * swsusp_write - Write entire image and metadata. + * @flags: flags to pass to the "boot" kernel in the image header * * It is important _NOT_ to umount filesystems at this point. We want * them synced (in case something goes wrong) but we DO not want to mark @@ -376,7 +379,7 @@ static int enough_swap(unsigned int nr_pages) * correctly, we'll mark system clean, anyway.) */ -int swsusp_write(void) +int swsusp_write(unsigned int flags) { struct swap_map_handle handle; struct snapshot_handle snapshot; @@ -415,7 +418,7 @@ int swsusp_write(void) if (!error) { flush_swap_writer(&handle); printk("S"); - error = mark_swapfiles(start); + error = mark_swapfiles(start, flags); printk("|\n"); } } @@ -540,13 +543,20 @@ static int load_image(struct swap_map_handle *handle, return error; } -int swsusp_read(void) +/** + * swsusp_read - read the hibernation image. + * @flags_p: flags passed by the "frozen" kernel in the image header should + * be written into this memeory location + */ + +int swsusp_read(unsigned int *flags_p) { int error; struct swap_map_handle handle; struct snapshot_handle snapshot; struct swsusp_info *header; + *flags_p = swsusp_header->flags; if (IS_ERR(resume_bdev)) { pr_debug("swsusp: block device not initialised\n"); return PTR_ERR(resume_bdev); diff --git a/kernel/power/user.c b/kernel/power/user.c index d65305b515b1..bd0723a7df3f 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -128,92 +128,6 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf, return res; } -static inline int platform_prepare(void) -{ - int error = 0; - - if (hibernation_ops) - error = hibernation_ops->prepare(); - - return error; -} - -static inline void platform_finish(void) -{ - if (hibernation_ops) - hibernation_ops->finish(); -} - -static inline int snapshot_suspend(int platform_suspend) -{ - int error; - - mutex_lock(&pm_mutex); - /* Free memory before shutting down devices. */ - error = swsusp_shrink_memory(); - if (error) - goto Finish; - - if (platform_suspend) { - error = platform_prepare(); - if (error) - goto Finish; - } - suspend_console(); - error = device_suspend(PMSG_FREEZE); - if (error) - goto Resume_devices; - - error = disable_nonboot_cpus(); - if (!error) { - in_suspend = 1; - error = swsusp_suspend(); - } - enable_nonboot_cpus(); - Resume_devices: - if (platform_suspend) - platform_finish(); - - device_resume(); - resume_console(); - Finish: - mutex_unlock(&pm_mutex); - return error; -} - -static inline int snapshot_restore(int platform_suspend) -{ - int error; - - mutex_lock(&pm_mutex); - pm_prepare_console(); - if (platform_suspend) { - error = platform_prepare(); - if (error) - goto Finish; - } - suspend_console(); - error = device_suspend(PMSG_PRETHAW); - if (error) - goto Resume_devices; - - error = disable_nonboot_cpus(); - if (!error) - error = swsusp_resume(); - - enable_nonboot_cpus(); - Resume_devices: - if (platform_suspend) - platform_finish(); - - device_resume(); - resume_console(); - Finish: - pm_restore_console(); - mutex_unlock(&pm_mutex); - return error; -} - static int snapshot_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { @@ -237,10 +151,14 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, if (data->frozen) break; mutex_lock(&pm_mutex); - if (freeze_processes()) { - thaw_processes(); - error = -EBUSY; + error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE); + if (!error) { + error = freeze_processes(); + if (error) + thaw_processes(); } + if (error) + pm_notifier_call_chain(PM_POST_HIBERNATION); mutex_unlock(&pm_mutex); if (!error) data->frozen = 1; @@ -251,6 +169,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, break; mutex_lock(&pm_mutex); thaw_processes(); + pm_notifier_call_chain(PM_POST_HIBERNATION); mutex_unlock(&pm_mutex); data->frozen = 0; break; @@ -260,7 +179,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, error = -EPERM; break; } - error = snapshot_suspend(data->platform_suspend); + error = hibernation_snapshot(data->platform_suspend); if (!error) error = put_user(in_suspend, (unsigned int __user *)arg); if (!error) @@ -274,7 +193,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, error = -EPERM; break; } - error = snapshot_restore(data->platform_suspend); + error = hibernation_restore(data->platform_suspend); break; case SNAPSHOT_FREE: @@ -336,47 +255,19 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, break; case SNAPSHOT_S2RAM: - if (!pm_ops) { - error = -ENOSYS; - break; - } - if (!data->frozen) { error = -EPERM; break; } - if (!mutex_trylock(&pm_mutex)) { error = -EBUSY; break; } - - if (pm_ops->prepare) { - error = pm_ops->prepare(PM_SUSPEND_MEM); - if (error) - goto OutS3; - } - - /* Put devices to sleep */ - suspend_console(); - error = device_suspend(PMSG_SUSPEND); - if (error) { - printk(KERN_ERR "Failed to suspend some devices.\n"); - } else { - error = disable_nonboot_cpus(); - if (!error) { - /* Enter S3, system is already frozen */ - suspend_enter(PM_SUSPEND_MEM); - enable_nonboot_cpus(); - } - /* Wake up devices */ - device_resume(); - } - resume_console(); - if (pm_ops->finish) - pm_ops->finish(PM_SUSPEND_MEM); - - OutS3: + /* + * Tasks are frozen and the notifiers have been called with + * PM_HIBERNATION_PREPARE + */ + error = suspend_devices_and_enter(PM_SUSPEND_MEM); mutex_unlock(&pm_mutex); break; @@ -386,19 +277,14 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, switch (arg) { case PMOPS_PREPARE: - if (hibernation_ops) { - data->platform_suspend = 1; - error = 0; - } else { - error = -ENOSYS; - } + data->platform_suspend = 1; + error = 0; break; case PMOPS_ENTER: - if (data->platform_suspend) { - kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK); - error = hibernation_ops->enter(); - } + if (data->platform_suspend) + error = hibernation_platform_enter(); + break; case PMOPS_FINISH: diff --git a/kernel/ptrace.c b/kernel/ptrace.c index b1d11f1c7cf7..82a558b655da 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -142,7 +142,7 @@ static int may_attach(struct task_struct *task) return -EPERM; smp_rmb(); if (task->mm) - dumpable = task->mm->dumpable; + dumpable = get_dumpable(task->mm); if (!dumpable && !capable(CAP_SYS_PTRACE)) return -EPERM; @@ -490,3 +490,22 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data) return ret; } #endif /* __ARCH_SYS_PTRACE */ + +int generic_ptrace_peekdata(struct task_struct *tsk, long addr, long data) +{ + unsigned long tmp; + int copied; + + copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0); + if (copied != sizeof(tmp)) + return -EIO; + return put_user(tmp, (unsigned long __user *)data); +} + +int generic_ptrace_pokedata(struct task_struct *tsk, long addr, long data) +{ + int copied; + + copied = access_process_vm(tsk, addr, &data, sizeof(data), 1); + return (copied == sizeof(data)) ? 0 : -EIO; +} diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index 55ba82a85a66..ddff33247785 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -40,6 +40,7 @@ #include <linux/moduleparam.h> #include <linux/percpu.h> #include <linux/notifier.h> +#include <linux/freezer.h> #include <linux/cpu.h> #include <linux/random.h> #include <linux/delay.h> @@ -518,7 +519,6 @@ rcu_torture_writer(void *arg) VERBOSE_PRINTK_STRING("rcu_torture_writer task started"); set_user_nice(current, 19); - current->flags |= PF_NOFREEZE; do { schedule_timeout_uninterruptible(1); @@ -558,7 +558,6 @@ rcu_torture_fakewriter(void *arg) VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task started"); set_user_nice(current, 19); - current->flags |= PF_NOFREEZE; do { schedule_timeout_uninterruptible(1 + rcu_random(&rand)%10); @@ -589,7 +588,6 @@ rcu_torture_reader(void *arg) VERBOSE_PRINTK_STRING("rcu_torture_reader task started"); set_user_nice(current, 19); - current->flags |= PF_NOFREEZE; do { idx = cur_ops->readlock(); diff --git a/kernel/relay.c b/kernel/relay.c index a615a8f513fc..510fbbd7b500 100644 --- a/kernel/relay.c +++ b/kernel/relay.c @@ -80,7 +80,7 @@ static struct vm_operations_struct relay_file_mmap_ops = { * * Caller should already have grabbed mmap_sem. */ -int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma) +static int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma) { unsigned long length = vma->vm_end - vma->vm_start; struct file *filp = vma->vm_file; @@ -145,7 +145,7 @@ depopulate: * * Returns channel buffer if successful, %NULL otherwise. */ -struct rchan_buf *relay_create_buf(struct rchan *chan) +static struct rchan_buf *relay_create_buf(struct rchan *chan) { struct rchan_buf *buf = kzalloc(sizeof(struct rchan_buf), GFP_KERNEL); if (!buf) @@ -175,7 +175,7 @@ free_buf: * * Should only be called from kref_put(). */ -void relay_destroy_channel(struct kref *kref) +static void relay_destroy_channel(struct kref *kref) { struct rchan *chan = container_of(kref, struct rchan, kref); kfree(chan); @@ -185,7 +185,7 @@ void relay_destroy_channel(struct kref *kref) * relay_destroy_buf - destroy an rchan_buf struct and associated buffer * @buf: the buffer struct */ -void relay_destroy_buf(struct rchan_buf *buf) +static void relay_destroy_buf(struct rchan_buf *buf) { struct rchan *chan = buf->chan; unsigned int i; @@ -210,7 +210,7 @@ void relay_destroy_buf(struct rchan_buf *buf) * rchan_buf_struct and the channel buffer. Should only be called from * kref_put(). */ -void relay_remove_buf(struct kref *kref) +static void relay_remove_buf(struct kref *kref) { struct rchan_buf *buf = container_of(kref, struct rchan_buf, kref); buf->chan->cb->remove_buf_file(buf->dentry); @@ -223,11 +223,10 @@ void relay_remove_buf(struct kref *kref) * * Returns 1 if the buffer is empty, 0 otherwise. */ -int relay_buf_empty(struct rchan_buf *buf) +static int relay_buf_empty(struct rchan_buf *buf) { return (buf->subbufs_produced - buf->subbufs_consumed) ? 0 : 1; } -EXPORT_SYMBOL_GPL(relay_buf_empty); /** * relay_buf_full - boolean, is the channel buffer full? diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c index 015fc633c96c..e3055ba69159 100644 --- a/kernel/rtmutex-tester.c +++ b/kernel/rtmutex-tester.c @@ -260,6 +260,7 @@ static int test_func(void *data) int ret; current->flags |= PF_MUTEX_TESTER; + set_freezable(); allow_signal(SIGHUP); for(;;) { diff --git a/kernel/rwsem.c b/kernel/rwsem.c index 9a87886b022e..1ec620c03064 100644 --- a/kernel/rwsem.c +++ b/kernel/rwsem.c @@ -20,7 +20,7 @@ void down_read(struct rw_semaphore *sem) might_sleep(); rwsem_acquire_read(&sem->dep_map, 0, 0, _RET_IP_); - __down_read(sem); + LOCK_CONTENDED(sem, __down_read_trylock, __down_read); } EXPORT_SYMBOL(down_read); @@ -47,7 +47,7 @@ void down_write(struct rw_semaphore *sem) might_sleep(); rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_); - __down_write(sem); + LOCK_CONTENDED(sem, __down_write_trylock, __down_write); } EXPORT_SYMBOL(down_write); @@ -111,7 +111,7 @@ void down_read_nested(struct rw_semaphore *sem, int subclass) might_sleep(); rwsem_acquire_read(&sem->dep_map, subclass, 0, _RET_IP_); - __down_read(sem); + LOCK_CONTENDED(sem, __down_read_trylock, __down_read); } EXPORT_SYMBOL(down_read_nested); @@ -130,7 +130,7 @@ void down_write_nested(struct rw_semaphore *sem, int subclass) might_sleep(); rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_); - __down_write_nested(sem, subclass); + LOCK_CONTENDED(sem, __down_write_trylock, __down_write); } EXPORT_SYMBOL(down_write_nested); diff --git a/kernel/sched.c b/kernel/sched.c index 1c8076676eb1..645256b228c3 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -301,7 +301,7 @@ struct rq { struct lock_class_key rq_lock_key; }; -static DEFINE_PER_CPU(struct rq, runqueues) ____cacheline_aligned_in_smp; +static DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); static DEFINE_MUTEX(sched_hotcpu_mutex); static inline void check_preempt_curr(struct rq *rq, struct task_struct *p) @@ -4912,8 +4912,6 @@ static int migration_thread(void *data) struct migration_req *req; struct list_head *head; - try_to_freeze(); - spin_lock_irq(&rq->lock); if (cpu_is_offline(cpu)) { @@ -5147,7 +5145,6 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) p = kthread_create(migration_thread, hcpu, "migration/%d", cpu); if (IS_ERR(p)) return NOTIFY_BAD; - p->flags |= PF_NOFREEZE; kthread_bind(p, cpu); /* Must be high prio: stop_machine expects to yield to it. */ rq = task_rq_lock(p, &flags); diff --git a/kernel/softirq.c b/kernel/softirq.c index 8de267790166..0f546ddea43d 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -14,6 +14,7 @@ #include <linux/notifier.h> #include <linux/percpu.h> #include <linux/cpu.h> +#include <linux/freezer.h> #include <linux/kthread.h> #include <linux/rcupdate.h> #include <linux/smp.h> @@ -488,8 +489,6 @@ void __init softirq_init(void) static int ksoftirqd(void * __bind_cpu) { - current->flags |= PF_NOFREEZE; - set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { diff --git a/kernel/softlockup.c b/kernel/softlockup.c index 0131e296ffb4..708d4882c0c3 100644 --- a/kernel/softlockup.c +++ b/kernel/softlockup.c @@ -10,6 +10,7 @@ #include <linux/cpu.h> #include <linux/init.h> #include <linux/delay.h> +#include <linux/freezer.h> #include <linux/kthread.h> #include <linux/notifier.h> #include <linux/module.h> @@ -116,7 +117,6 @@ static int watchdog(void * __bind_cpu) struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 }; sched_setscheduler(current, SCHED_FIFO, ¶m); - current->flags |= PF_NOFREEZE; /* initialize timestamp */ touch_softlockup_watchdog(); diff --git a/kernel/spinlock.c b/kernel/spinlock.c index 2c6c2bf85514..cd72424c2662 100644 --- a/kernel/spinlock.c +++ b/kernel/spinlock.c @@ -72,7 +72,7 @@ void __lockfunc _read_lock(rwlock_t *lock) { preempt_disable(); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - _raw_read_lock(lock); + LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock); } EXPORT_SYMBOL(_read_lock); @@ -88,8 +88,8 @@ unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock) * _raw_spin_lock_flags() code, because lockdep assumes * that interrupts are not re-enabled during lock-acquire: */ -#ifdef CONFIG_PROVE_LOCKING - _raw_spin_lock(lock); +#ifdef CONFIG_LOCKDEP + LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); #else _raw_spin_lock_flags(lock, &flags); #endif @@ -102,7 +102,7 @@ void __lockfunc _spin_lock_irq(spinlock_t *lock) local_irq_disable(); preempt_disable(); spin_acquire(&lock->dep_map, 0, 0, _RET_IP_); - _raw_spin_lock(lock); + LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); } EXPORT_SYMBOL(_spin_lock_irq); @@ -111,7 +111,7 @@ void __lockfunc _spin_lock_bh(spinlock_t *lock) local_bh_disable(); preempt_disable(); spin_acquire(&lock->dep_map, 0, 0, _RET_IP_); - _raw_spin_lock(lock); + LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); } EXPORT_SYMBOL(_spin_lock_bh); @@ -122,7 +122,7 @@ unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock) local_irq_save(flags); preempt_disable(); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - _raw_read_lock(lock); + LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock); return flags; } EXPORT_SYMBOL(_read_lock_irqsave); @@ -132,7 +132,7 @@ void __lockfunc _read_lock_irq(rwlock_t *lock) local_irq_disable(); preempt_disable(); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - _raw_read_lock(lock); + LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock); } EXPORT_SYMBOL(_read_lock_irq); @@ -141,7 +141,7 @@ void __lockfunc _read_lock_bh(rwlock_t *lock) local_bh_disable(); preempt_disable(); rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - _raw_read_lock(lock); + LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock); } EXPORT_SYMBOL(_read_lock_bh); @@ -152,7 +152,7 @@ unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock) local_irq_save(flags); preempt_disable(); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - _raw_write_lock(lock); + LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock); return flags; } EXPORT_SYMBOL(_write_lock_irqsave); @@ -162,7 +162,7 @@ void __lockfunc _write_lock_irq(rwlock_t *lock) local_irq_disable(); preempt_disable(); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - _raw_write_lock(lock); + LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock); } EXPORT_SYMBOL(_write_lock_irq); @@ -171,7 +171,7 @@ void __lockfunc _write_lock_bh(rwlock_t *lock) local_bh_disable(); preempt_disable(); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - _raw_write_lock(lock); + LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock); } EXPORT_SYMBOL(_write_lock_bh); @@ -179,7 +179,7 @@ void __lockfunc _spin_lock(spinlock_t *lock) { preempt_disable(); spin_acquire(&lock->dep_map, 0, 0, _RET_IP_); - _raw_spin_lock(lock); + LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); } EXPORT_SYMBOL(_spin_lock); @@ -188,7 +188,7 @@ void __lockfunc _write_lock(rwlock_t *lock) { preempt_disable(); rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - _raw_write_lock(lock); + LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock); } EXPORT_SYMBOL(_write_lock); @@ -289,7 +289,7 @@ void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass) { preempt_disable(); spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_); - _raw_spin_lock(lock); + LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); } EXPORT_SYMBOL(_spin_lock_nested); @@ -305,8 +305,8 @@ unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclas * _raw_spin_lock_flags() code, because lockdep assumes * that interrupts are not re-enabled during lock-acquire: */ -#ifdef CONFIG_PROVE_SPIN_LOCKING - _raw_spin_lock(lock); +#ifdef CONFIG_LOCKDEP + LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); #else _raw_spin_lock_flags(lock, &flags); #endif diff --git a/kernel/sys.c b/kernel/sys.c index 4d141ae3e802..08562f419768 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -100,6 +100,13 @@ struct pid *cad_pid; EXPORT_SYMBOL(cad_pid); /* + * If set, this is used for preparing the system to power off. + */ + +void (*pm_power_off_prepare)(void); +EXPORT_SYMBOL(pm_power_off_prepare); + +/* * Notifier list for kernel code which wants to be called * at shutdown. This is used to stop any idling DMA operations * and the like. @@ -867,6 +874,8 @@ EXPORT_SYMBOL_GPL(kernel_halt); void kernel_power_off(void) { kernel_shutdown_prepare(SYSTEM_POWER_OFF); + if (pm_power_off_prepare) + pm_power_off_prepare(); printk(KERN_EMERG "Power down.\n"); machine_power_off(); } @@ -1027,7 +1036,7 @@ asmlinkage long sys_setregid(gid_t rgid, gid_t egid) return -EPERM; } if (new_egid != old_egid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } if (rgid != (gid_t) -1 || @@ -1057,13 +1066,13 @@ asmlinkage long sys_setgid(gid_t gid) if (capable(CAP_SETGID)) { if (old_egid != gid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->gid = current->egid = current->sgid = current->fsgid = gid; } else if ((gid == current->gid) || (gid == current->sgid)) { if (old_egid != gid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->egid = current->fsgid = gid; @@ -1094,7 +1103,7 @@ static int set_user(uid_t new_ruid, int dumpclear) switch_uid(new_user); if (dumpclear) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->uid = new_ruid; @@ -1150,7 +1159,7 @@ asmlinkage long sys_setreuid(uid_t ruid, uid_t euid) return -EAGAIN; if (new_euid != old_euid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->fsuid = current->euid = new_euid; @@ -1200,7 +1209,7 @@ asmlinkage long sys_setuid(uid_t uid) return -EPERM; if (old_euid != uid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->fsuid = current->euid = uid; @@ -1245,7 +1254,7 @@ asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid) } if (euid != (uid_t) -1) { if (euid != current->euid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->euid = euid; @@ -1295,7 +1304,7 @@ asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid) } if (egid != (gid_t) -1) { if (egid != current->egid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->egid = egid; @@ -1341,7 +1350,7 @@ asmlinkage long sys_setfsuid(uid_t uid) uid == current->suid || uid == current->fsuid || capable(CAP_SETUID)) { if (uid != old_fsuid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->fsuid = uid; @@ -1370,7 +1379,7 @@ asmlinkage long sys_setfsgid(gid_t gid) gid == current->sgid || gid == current->fsgid || capable(CAP_SETGID)) { if (gid != old_fsgid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); smp_wmb(); } current->fsgid = gid; @@ -2167,14 +2176,14 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, error = put_user(current->pdeath_signal, (int __user *)arg2); break; case PR_GET_DUMPABLE: - error = current->mm->dumpable; + error = get_dumpable(current->mm); break; case PR_SET_DUMPABLE: if (arg2 < 0 || arg2 > 1) { error = -EINVAL; break; } - current->mm->dumpable = arg2; + set_dumpable(current->mm, arg2); break; case PR_SET_UNALIGN: @@ -2286,3 +2295,61 @@ asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep, } return err ? -EFAULT : 0; } + +char poweroff_cmd[POWEROFF_CMD_PATH_LEN] = "/sbin/poweroff"; + +static void argv_cleanup(char **argv, char **envp) +{ + argv_free(argv); +} + +/** + * orderly_poweroff - Trigger an orderly system poweroff + * @force: force poweroff if command execution fails + * + * This may be called from any context to trigger a system shutdown. + * If the orderly shutdown fails, it will force an immediate shutdown. + */ +int orderly_poweroff(bool force) +{ + int argc; + char **argv = argv_split(GFP_ATOMIC, poweroff_cmd, &argc); + static char *envp[] = { + "HOME=/", + "PATH=/sbin:/bin:/usr/sbin:/usr/bin", + NULL + }; + int ret = -ENOMEM; + struct subprocess_info *info; + + if (argv == NULL) { + printk(KERN_WARNING "%s failed to allocate memory for \"%s\"\n", + __func__, poweroff_cmd); + goto out; + } + + info = call_usermodehelper_setup(argv[0], argv, envp); + if (info == NULL) { + argv_free(argv); + goto out; + } + + call_usermodehelper_setcleanup(info, argv_cleanup); + + ret = call_usermodehelper_exec(info, UMH_NO_WAIT); + + out: + if (ret && force) { + printk(KERN_WARNING "Failed to start orderly shutdown: " + "forcing the issue\n"); + + /* I guess this should try to kick off some daemon to + sync and poweroff asap. Or not even bother syncing + if we're doing an emergency shutdown? */ + emergency_sync(); + kernel_power_off(); + } + + return ret; +} +EXPORT_SYMBOL_GPL(orderly_poweroff); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 2ce7acf841ae..222299844ad1 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -29,6 +29,7 @@ #include <linux/utsname.h> #include <linux/capability.h> #include <linux/smp_lock.h> +#include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/kobject.h> @@ -45,13 +46,11 @@ #include <linux/syscalls.h> #include <linux/nfs_fs.h> #include <linux/acpi.h> +#include <linux/reboot.h> #include <asm/uaccess.h> #include <asm/processor.h> -extern int proc_nr_files(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos); - #ifdef CONFIG_X86 #include <asm/nmi.h> #include <asm/stacktrace.h> @@ -79,6 +78,7 @@ extern int percpu_pagelist_fraction; extern int compat_log; extern int maps_protect; extern int sysctl_stat_interval; +extern int audit_argv_kb; /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ static int maxolduid = 65535; @@ -161,6 +161,8 @@ extern ctl_table inotify_table[]; int sysctl_legacy_va_layout; #endif +extern int prove_locking; +extern int lock_stat; /* The default sysctl tables: */ @@ -282,6 +284,26 @@ static ctl_table kern_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, +#ifdef CONFIG_PROVE_LOCKING + { + .ctl_name = CTL_UNNUMBERED, + .procname = "prove_locking", + .data = &prove_locking, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, +#endif +#ifdef CONFIG_LOCK_STAT + { + .ctl_name = CTL_UNNUMBERED, + .procname = "lock_stat", + .data = &lock_stat, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, +#endif { .ctl_name = CTL_UNNUMBERED, .procname = "sched_features", @@ -307,6 +329,16 @@ static ctl_table kern_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, +#ifdef CONFIG_AUDITSYSCALL + { + .ctl_name = CTL_UNNUMBERED, + .procname = "audit_argv_kb", + .data = &audit_argv_kb, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, +#endif { .ctl_name = KERN_CORE_PATTERN, .procname = "core_pattern", @@ -661,7 +693,7 @@ static ctl_table kern_table[] = { { .ctl_name = KERN_ACPI_VIDEO_FLAGS, .procname = "acpi_video_flags", - .data = &acpi_video_flags, + .data = &acpi_realmode_flags, .maxlen = sizeof (unsigned long), .mode = 0644, .proc_handler = &proc_doulongvec_minmax, @@ -707,13 +739,26 @@ static ctl_table kern_table[] = { .proc_handler = &proc_dointvec, }, #endif - + { + .ctl_name = CTL_UNNUMBERED, + .procname = "poweroff_cmd", + .data = &poweroff_cmd, + .maxlen = POWEROFF_CMD_PATH_LEN, + .mode = 0644, + .proc_handler = &proc_dostring, + .strategy = &sysctl_string, + }, +/* + * NOTE: do not add new entries to this table unless you have read + * Documentation/sysctl/ctl_unnumbered.txt + */ { .ctl_name = 0 } }; /* Constants for minimum and maximum testing in vm_table. We use these as one-element integer vectors. */ static int zero; +static int two = 2; static int one_hundred = 100; @@ -826,6 +871,14 @@ static ctl_table vm_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "hugepages_treat_as_movable", + .data = &hugepages_treat_as_movable, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &hugetlb_treat_movable_handler, + }, #endif { .ctl_name = VM_LOWMEM_RESERVE_RATIO, @@ -1096,7 +1149,10 @@ static ctl_table fs_table[] = { .data = &lease_break_time, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_dointvec, + .proc_handler = &proc_dointvec_minmax, + .strategy = &sysctl_intvec, + .extra1 = &zero, + .extra2 = &two, }, { .ctl_name = FS_AIO_NR, diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 728cedfd3cbd..89698776613e 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -401,7 +401,7 @@ static __always_inline int clocksource_bigadjust(s64 error, s64 *interval, * this is optimized for the most common adjustments of -1,0,1, * for other values we can do a bit more work. */ -static void clocksource_adjust(struct clocksource *clock, s64 offset) +static void clocksource_adjust(s64 offset) { s64 error, interval = clock->cycle_interval; int adj; @@ -476,7 +476,7 @@ void update_wall_time(void) } /* correct the clock when NTP error is too big */ - clocksource_adjust(clock, offset); + clocksource_adjust(offset); /* store full nanoseconds into xtime */ xtime.tv_nsec = (s64)clock->xtime_nsec >> clock->shift; diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index 8bbcfb77f7d2..e5edc3a22a08 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -38,7 +38,7 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases); static void print_name_offset(struct seq_file *m, void *sym) { - char symname[KSYM_NAME_LEN+1]; + char symname[KSYM_NAME_LEN]; if (lookup_symbol_name((unsigned long)sym, symname) < 0) SEQ_printf(m, "<%p>", sym); diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c index 9b8a826236dd..8ed62fda16c6 100644 --- a/kernel/time/timer_stats.c +++ b/kernel/time/timer_stats.c @@ -269,7 +269,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf, static void print_name_offset(struct seq_file *m, unsigned long addr) { - char symname[KSYM_NAME_LEN+1]; + char symname[KSYM_NAME_LEN]; if (lookup_symbol_name(addr, symname) < 0) seq_printf(m, "<%p>", (void *)addr); diff --git a/kernel/timer.c b/kernel/timer.c index 1258371e0d2b..d1e8b975c7ae 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -103,14 +103,14 @@ static inline tvec_base_t *tbase_get_base(tvec_base_t *base) static inline void timer_set_deferrable(struct timer_list *timer) { timer->base = ((tvec_base_t *)((unsigned long)(timer->base) | - TBASE_DEFERRABLE_FLAG)); + TBASE_DEFERRABLE_FLAG)); } static inline void timer_set_base(struct timer_list *timer, tvec_base_t *new_base) { timer->base = (tvec_base_t *)((unsigned long)(new_base) | - tbase_get_deferrable(timer->base)); + tbase_get_deferrable(timer->base)); } /** @@ -445,10 +445,10 @@ EXPORT_SYMBOL(__mod_timer); void add_timer_on(struct timer_list *timer, int cpu) { tvec_base_t *base = per_cpu(tvec_bases, cpu); - unsigned long flags; + unsigned long flags; timer_stats_timer_set_start_info(timer); - BUG_ON(timer_pending(timer) || !timer->function); + BUG_ON(timer_pending(timer) || !timer->function); spin_lock_irqsave(&base->lock, flags); timer_set_base(timer, base); internal_add_timer(base, timer); @@ -627,7 +627,7 @@ static inline void __run_timers(tvec_base_t *base) while (time_after_eq(jiffies, base->timer_jiffies)) { struct list_head work_list; struct list_head *head = &work_list; - int index = base->timer_jiffies & TVR_MASK; + int index = base->timer_jiffies & TVR_MASK; /* * Cascade timers: @@ -644,8 +644,8 @@ static inline void __run_timers(tvec_base_t *base) unsigned long data; timer = list_first_entry(head, struct timer_list,entry); - fn = timer->function; - data = timer->data; + fn = timer->function; + data = timer->data; timer_stats_account_timer(timer); @@ -689,8 +689,8 @@ static unsigned long __next_timer_interrupt(tvec_base_t *base) index = slot = timer_jiffies & TVR_MASK; do { list_for_each_entry(nte, base->tv1.vec + slot, entry) { - if (tbase_get_deferrable(nte->base)) - continue; + if (tbase_get_deferrable(nte->base)) + continue; found = 1; expires = nte->expires; @@ -834,7 +834,7 @@ void update_process_times(int user_tick) if (rcu_pending(cpu)) rcu_check_callbacks(cpu, user_tick); scheduler_tick(); - run_posix_cpu_timers(p); + run_posix_cpu_timers(p); } /* @@ -909,7 +909,7 @@ static inline void update_times(unsigned long ticks) update_wall_time(); calc_load(ticks); } - + /* * The 64-bit jiffies value is not atomic - you MUST NOT read it * without sampling the sequence number in xtime_lock. @@ -1105,7 +1105,7 @@ asmlinkage long sys_gettid(void) /** * do_sysinfo - fill in sysinfo struct * @info: pointer to buffer to fill - */ + */ int do_sysinfo(struct sysinfo *info) { unsigned long mem_total, sav_total; @@ -1221,7 +1221,8 @@ static int __devinit init_timers_cpu(int cpu) /* * The APs use this path later in boot */ - base = kmalloc_node(sizeof(*base), GFP_KERNEL, + base = kmalloc_node(sizeof(*base), + GFP_KERNEL | __GFP_ZERO, cpu_to_node(cpu)); if (!base) return -ENOMEM; @@ -1232,7 +1233,6 @@ static int __devinit init_timers_cpu(int cpu) kfree(base); return -ENOMEM; } - memset(base, 0, sizeof(*base)); per_cpu(tvec_bases, cpu) = base; } else { /* diff --git a/kernel/workqueue.c b/kernel/workqueue.c index d7d3fa3072e5..58e5c152a6bb 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -282,8 +282,8 @@ static int worker_thread(void *__cwq) struct cpu_workqueue_struct *cwq = __cwq; DEFINE_WAIT(wait); - if (!cwq->wq->freezeable) - current->flags |= PF_NOFREEZE; + if (cwq->wq->freezeable) + set_freezable(); set_user_nice(current, -5); @@ -752,18 +752,17 @@ static void cleanup_workqueue_thread(struct cpu_workqueue_struct *cwq, int cpu) if (cwq->thread == NULL) return; + flush_cpu_workqueue(cwq); /* - * If the caller is CPU_DEAD the single flush_cpu_workqueue() - * is not enough, a concurrent flush_workqueue() can insert a - * barrier after us. + * If the caller is CPU_DEAD and cwq->worklist was not empty, + * a concurrent flush_workqueue() can insert a barrier after us. + * However, in that case run_workqueue() won't return and check + * kthread_should_stop() until it flushes all work_struct's. * When ->worklist becomes empty it is safe to exit because no * more work_structs can be queued on this cwq: flush_workqueue * checks list_empty(), and a "normal" queue_work() can't use * a dead CPU. */ - while (flush_cpu_workqueue(cwq)) - ; - kthread_stop(cwq->thread); cwq->thread = NULL; } diff --git a/lib/Kconfig b/lib/Kconfig index 3eb29d5dc4f5..e5c2c514174a 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -41,6 +41,14 @@ config CRC32 kernel tree does. Such modules that use library CRC32 functions require M here. +config CRC7 + tristate "CRC7 functions" + help + This option is provided for the case where no in-kernel-tree + modules require CRC7 functions, but a module built outside + the kernel tree does. Such modules that use library CRC7 + functions require M here. + config LIBCRC32C tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check" help diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 640844024ffd..f3e0c2abcbd0 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -283,6 +283,17 @@ config LOCKDEP select KALLSYMS select KALLSYMS_ALL +config LOCK_STAT + bool "Lock usage statisitics" + depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT + select LOCKDEP + select DEBUG_SPINLOCK + select DEBUG_MUTEXES + select DEBUG_LOCK_ALLOC + default n + help + This feature enables tracking lock contention points + config DEBUG_LOCKDEP bool "Lock dependency engine debugging" depends on DEBUG_KERNEL && LOCKDEP diff --git a/lib/Makefile b/lib/Makefile index 8363b60be9dd..614966387402 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -5,7 +5,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \ rbtree.o radix-tree.o dump_stack.o \ idr.o int_sqrt.o bitmap.o extable.o prio_tree.o \ - sha1.o irq_regs.o reciprocal_div.o + sha1.o irq_regs.o reciprocal_div.o argv_split.o lib-$(CONFIG_MMU) += ioremap.o lib-$(CONFIG_SMP) += cpumask.o @@ -43,6 +43,7 @@ obj-$(CONFIG_CRC_CCITT) += crc-ccitt.o obj-$(CONFIG_CRC16) += crc16.o obj-$(CONFIG_CRC_ITU_T) += crc-itu-t.o obj-$(CONFIG_CRC32) += crc32.o +obj-$(CONFIG_CRC7) += crc7.o obj-$(CONFIG_LIBCRC32C) += libcrc32c.o obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o diff --git a/lib/argv_split.c b/lib/argv_split.c new file mode 100644 index 000000000000..4096ed42f490 --- /dev/null +++ b/lib/argv_split.c @@ -0,0 +1,105 @@ +/* + * Helper function for splitting a string into an argv-like array. + */ + +#include <linux/kernel.h> +#include <linux/ctype.h> +#include <linux/bug.h> + +static const char *skip_sep(const char *cp) +{ + while (*cp && isspace(*cp)) + cp++; + + return cp; +} + +static const char *skip_arg(const char *cp) +{ + while (*cp && !isspace(*cp)) + cp++; + + return cp; +} + +static int count_argc(const char *str) +{ + int count = 0; + + while (*str) { + str = skip_sep(str); + if (*str) { + count++; + str = skip_arg(str); + } + } + + return count; +} + +/** + * argv_free - free an argv + * @argv - the argument vector to be freed + * + * Frees an argv and the strings it points to. + */ +void argv_free(char **argv) +{ + char **p; + for (p = argv; *p; p++) + kfree(*p); + + kfree(argv); +} +EXPORT_SYMBOL(argv_free); + +/** + * argv_split - split a string at whitespace, returning an argv + * @gfp: the GFP mask used to allocate memory + * @str: the string to be split + * @argcp: returned argument count + * + * Returns an array of pointers to strings which are split out from + * @str. This is performed by strictly splitting on white-space; no + * quote processing is performed. Multiple whitespace characters are + * considered to be a single argument separator. The returned array + * is always NULL-terminated. Returns NULL on memory allocation + * failure. + */ +char **argv_split(gfp_t gfp, const char *str, int *argcp) +{ + int argc = count_argc(str); + char **argv = kzalloc(sizeof(*argv) * (argc+1), gfp); + char **argvp; + + if (argv == NULL) + goto out; + + *argcp = argc; + argvp = argv; + + while (*str) { + str = skip_sep(str); + + if (*str) { + const char *p = str; + char *t; + + str = skip_arg(str); + + t = kstrndup(p, str-p, gfp); + if (t == NULL) + goto fail; + *argvp++ = t; + } + } + *argvp = NULL; + + out: + return argv; + + fail: + argv_free(argv); + return NULL; +} +EXPORT_SYMBOL(argv_split); diff --git a/lib/crc7.c b/lib/crc7.c new file mode 100644 index 000000000000..f1c3a144cec1 --- /dev/null +++ b/lib/crc7.c @@ -0,0 +1,68 @@ +/* + * crc7.c + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/crc7.h> + + +/* Table for CRC-7 (polynomial x^7 + x^3 + 1) */ +const u8 crc7_syndrome_table[256] = { + 0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, + 0x48, 0x41, 0x5a, 0x53, 0x6c, 0x65, 0x7e, 0x77, + 0x19, 0x10, 0x0b, 0x02, 0x3d, 0x34, 0x2f, 0x26, + 0x51, 0x58, 0x43, 0x4a, 0x75, 0x7c, 0x67, 0x6e, + 0x32, 0x3b, 0x20, 0x29, 0x16, 0x1f, 0x04, 0x0d, + 0x7a, 0x73, 0x68, 0x61, 0x5e, 0x57, 0x4c, 0x45, + 0x2b, 0x22, 0x39, 0x30, 0x0f, 0x06, 0x1d, 0x14, + 0x63, 0x6a, 0x71, 0x78, 0x47, 0x4e, 0x55, 0x5c, + 0x64, 0x6d, 0x76, 0x7f, 0x40, 0x49, 0x52, 0x5b, + 0x2c, 0x25, 0x3e, 0x37, 0x08, 0x01, 0x1a, 0x13, + 0x7d, 0x74, 0x6f, 0x66, 0x59, 0x50, 0x4b, 0x42, + 0x35, 0x3c, 0x27, 0x2e, 0x11, 0x18, 0x03, 0x0a, + 0x56, 0x5f, 0x44, 0x4d, 0x72, 0x7b, 0x60, 0x69, + 0x1e, 0x17, 0x0c, 0x05, 0x3a, 0x33, 0x28, 0x21, + 0x4f, 0x46, 0x5d, 0x54, 0x6b, 0x62, 0x79, 0x70, + 0x07, 0x0e, 0x15, 0x1c, 0x23, 0x2a, 0x31, 0x38, + 0x41, 0x48, 0x53, 0x5a, 0x65, 0x6c, 0x77, 0x7e, + 0x09, 0x00, 0x1b, 0x12, 0x2d, 0x24, 0x3f, 0x36, + 0x58, 0x51, 0x4a, 0x43, 0x7c, 0x75, 0x6e, 0x67, + 0x10, 0x19, 0x02, 0x0b, 0x34, 0x3d, 0x26, 0x2f, + 0x73, 0x7a, 0x61, 0x68, 0x57, 0x5e, 0x45, 0x4c, + 0x3b, 0x32, 0x29, 0x20, 0x1f, 0x16, 0x0d, 0x04, + 0x6a, 0x63, 0x78, 0x71, 0x4e, 0x47, 0x5c, 0x55, + 0x22, 0x2b, 0x30, 0x39, 0x06, 0x0f, 0x14, 0x1d, + 0x25, 0x2c, 0x37, 0x3e, 0x01, 0x08, 0x13, 0x1a, + 0x6d, 0x64, 0x7f, 0x76, 0x49, 0x40, 0x5b, 0x52, + 0x3c, 0x35, 0x2e, 0x27, 0x18, 0x11, 0x0a, 0x03, + 0x74, 0x7d, 0x66, 0x6f, 0x50, 0x59, 0x42, 0x4b, + 0x17, 0x1e, 0x05, 0x0c, 0x33, 0x3a, 0x21, 0x28, + 0x5f, 0x56, 0x4d, 0x44, 0x7b, 0x72, 0x69, 0x60, + 0x0e, 0x07, 0x1c, 0x15, 0x2a, 0x23, 0x38, 0x31, + 0x46, 0x4f, 0x54, 0x5d, 0x62, 0x6b, 0x70, 0x79 +}; +EXPORT_SYMBOL(crc7_syndrome_table); + +/** + * crc7 - update the CRC7 for the data buffer + * @crc: previous CRC7 value + * @buffer: data pointer + * @len: number of bytes in the buffer + * Context: any + * + * Returns the updated CRC7 value. + */ +u8 crc7(u8 crc, const u8 *buffer, size_t len) +{ + while (len--) + crc = crc7_byte(crc, *buffer++); + return crc; +} +EXPORT_SYMBOL(crc7); + +MODULE_DESCRIPTION("CRC7 calculations"); +MODULE_LICENSE("GPL"); diff --git a/lib/genalloc.c b/lib/genalloc.c index eb7c2bab9ebf..f6d276db2d58 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -54,11 +54,10 @@ int gen_pool_add(struct gen_pool *pool, unsigned long addr, size_t size, int nbytes = sizeof(struct gen_pool_chunk) + (nbits + BITS_PER_BYTE - 1) / BITS_PER_BYTE; - chunk = kmalloc_node(nbytes, GFP_KERNEL, nid); + chunk = kmalloc_node(nbytes, GFP_KERNEL | __GFP_ZERO, nid); if (unlikely(chunk == NULL)) return -1; - memset(chunk, 0, nbytes); spin_lock_init(&chunk->lock); chunk->start_addr = addr; chunk->end_addr = addr + size; diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 12e311dc664c..6a80c784a8fb 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -33,25 +33,15 @@ static DEFINE_SPINLOCK(sequence_lock); static struct sock *uevent_sock; #endif -static char *action_to_string(enum kobject_action action) -{ - switch (action) { - case KOBJ_ADD: - return "add"; - case KOBJ_REMOVE: - return "remove"; - case KOBJ_CHANGE: - return "change"; - case KOBJ_OFFLINE: - return "offline"; - case KOBJ_ONLINE: - return "online"; - case KOBJ_MOVE: - return "move"; - default: - return NULL; - } -} +/* the strings here must match the enum in include/linux/kobject.h */ +const char *kobject_actions[] = { + "add", + "remove", + "change", + "move", + "online", + "offline", +}; /** * kobject_uevent_env - send an uevent with environmental data @@ -83,7 +73,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, pr_debug("%s\n", __FUNCTION__); - action_string = action_to_string(action); + action_string = kobject_actions[action]; if (!action_string) { pr_debug("kobject attempted to send uevent without action_string!\n"); return -EINVAL; @@ -208,7 +198,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, argv [0] = uevent_helper; argv [1] = (char *)subsystem; argv [2] = NULL; - call_usermodehelper (argv[0], argv, envp, 0); + call_usermodehelper (argv[0], argv, envp, UMH_WAIT_EXEC); } exit: diff --git a/mm/Kconfig b/mm/Kconfig index 086af703da43..86187221e78f 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -163,6 +163,10 @@ config ZONE_DMA_FLAG default "0" if !ZONE_DMA default "1" +config BOUNCE + def_bool y + depends on BLOCK && MMU && (ZONE_DMA || HIGHMEM) + config NR_QUICK int depends on QUICKLIST diff --git a/mm/Makefile b/mm/Makefile index a9148ea329aa..245e33ab00c4 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -13,9 +13,7 @@ obj-y := bootmem.o filemap.o mempool.o oom_kill.o fadvise.o \ prio_tree.o util.o mmzone.o vmstat.o backing-dev.o \ $(mmu-y) -ifeq ($(CONFIG_MMU)$(CONFIG_BLOCK),yy) -obj-y += bounce.o -endif +obj-$(CONFIG_BOUNCE) += bounce.o obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o thrash.o obj-$(CONFIG_HUGETLBFS) += hugetlb.o obj-$(CONFIG_NUMA) += mempolicy.o diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c index b2486cf887a0..00b02623f008 100644 --- a/mm/allocpercpu.c +++ b/mm/allocpercpu.c @@ -53,12 +53,9 @@ void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu) int node = cpu_to_node(cpu); BUG_ON(pdata->ptrs[cpu]); - if (node_online(node)) { - /* FIXME: kzalloc_node(size, gfp, node) */ - pdata->ptrs[cpu] = kmalloc_node(size, gfp, node); - if (pdata->ptrs[cpu]) - memset(pdata->ptrs[cpu], 0, size); - } else + if (node_online(node)) + pdata->ptrs[cpu] = kmalloc_node(size, gfp|__GFP_ZERO, node); + else pdata->ptrs[cpu] = kzalloc(size, gfp); return pdata->ptrs[cpu]; } diff --git a/mm/filemap.c b/mm/filemap.c index 100b99c2d504..49a6fe375d01 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -867,13 +867,11 @@ void do_generic_mapping_read(struct address_space *mapping, { struct inode *inode = mapping->host; unsigned long index; - unsigned long end_index; unsigned long offset; unsigned long last_index; unsigned long next_index; unsigned long prev_index; unsigned int prev_offset; - loff_t isize; struct page *cached_page; int error; struct file_ra_state ra = *_ra; @@ -886,42 +884,58 @@ void do_generic_mapping_read(struct address_space *mapping, last_index = (*ppos + desc->count + PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT; offset = *ppos & ~PAGE_CACHE_MASK; - isize = i_size_read(inode); - if (!isize) - goto out; - - end_index = (isize - 1) >> PAGE_CACHE_SHIFT; for (;;) { struct page *page; + unsigned long end_index; + loff_t isize; unsigned long nr, ret; + cond_resched(); +find_page: + page = find_get_page(mapping, index); + if (!page) { + page_cache_sync_readahead(mapping, + &ra, filp, + index, last_index - index); + page = find_get_page(mapping, index); + if (unlikely(page == NULL)) + goto no_cached_page; + } + if (PageReadahead(page)) { + page_cache_async_readahead(mapping, + &ra, filp, page, + index, last_index - index); + } + if (!PageUptodate(page)) + goto page_not_up_to_date; +page_ok: + /* + * i_size must be checked after we know the page is Uptodate. + * + * Checking i_size after the check allows us to calculate + * the correct value for "nr", which means the zero-filled + * part of the page is not copied back to userspace (unless + * another truncate extends the file - this is desired though). + */ + + isize = i_size_read(inode); + end_index = (isize - 1) >> PAGE_CACHE_SHIFT; + if (unlikely(!isize || index > end_index)) { + page_cache_release(page); + goto out; + } + /* nr is the maximum number of bytes to copy from this page */ nr = PAGE_CACHE_SIZE; - if (index >= end_index) { - if (index > end_index) - goto out; + if (index == end_index) { nr = ((isize - 1) & ~PAGE_CACHE_MASK) + 1; if (nr <= offset) { + page_cache_release(page); goto out; } } nr = nr - offset; - cond_resched(); - if (index == next_index) - next_index = page_cache_readahead(mapping, &ra, filp, - index, last_index - index); - -find_page: - page = find_get_page(mapping, index); - if (unlikely(page == NULL)) { - handle_ra_miss(mapping, &ra, index); - goto no_cached_page; - } - if (!PageUptodate(page)) - goto page_not_up_to_date; -page_ok: - /* If users can be writing to this page using arbitrary * virtual addresses, take care about potential aliasing * before reading the page on the kernel side. @@ -1007,31 +1021,6 @@ readpage: unlock_page(page); } - /* - * i_size must be checked after we have done ->readpage. - * - * Checking i_size after the readpage allows us to calculate - * the correct value for "nr", which means the zero-filled - * part of the page is not copied back to userspace (unless - * another truncate extends the file - this is desired though). - */ - isize = i_size_read(inode); - end_index = (isize - 1) >> PAGE_CACHE_SHIFT; - if (unlikely(!isize || index > end_index)) { - page_cache_release(page); - goto out; - } - - /* nr is the maximum number of bytes to copy from this page */ - nr = PAGE_CACHE_SIZE; - if (index == end_index) { - nr = ((isize - 1) & ~PAGE_CACHE_MASK) + 1; - if (nr <= offset) { - page_cache_release(page); - goto out; - } - } - nr = nr - offset; goto page_ok; readpage_error: @@ -1067,6 +1056,7 @@ no_cached_page: out: *_ra = ra; + _ra->prev_index = prev_index; *ppos = ((loff_t) index << PAGE_CACHE_SHIFT) + offset; if (cached_page) @@ -1317,62 +1307,62 @@ static int fastcall page_cache_read(struct file * file, unsigned long offset) #define MMAP_LOTSAMISS (100) /** - * filemap_nopage - read in file data for page fault handling - * @area: the applicable vm_area - * @address: target address to read in - * @type: returned with VM_FAULT_{MINOR,MAJOR} if not %NULL + * filemap_fault - read in file data for page fault handling + * @vma: vma in which the fault was taken + * @vmf: struct vm_fault containing details of the fault * - * filemap_nopage() is invoked via the vma operations vector for a + * filemap_fault() is invoked via the vma operations vector for a * mapped memory region to read in file data during a page fault. * * The goto's are kind of ugly, but this streamlines the normal case of having * it in the page cache, and handles the special cases reasonably without * having a lot of duplicated code. */ -struct page *filemap_nopage(struct vm_area_struct *area, - unsigned long address, int *type) +int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { int error; - struct file *file = area->vm_file; + struct file *file = vma->vm_file; struct address_space *mapping = file->f_mapping; struct file_ra_state *ra = &file->f_ra; struct inode *inode = mapping->host; struct page *page; - unsigned long size, pgoff; - int did_readaround = 0, majmin = VM_FAULT_MINOR; - - pgoff = ((address-area->vm_start) >> PAGE_CACHE_SHIFT) + area->vm_pgoff; + unsigned long size; + int did_readaround = 0; + int ret = 0; -retry_all: size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - if (pgoff >= size) + if (vmf->pgoff >= size) goto outside_data_content; /* If we don't want any read-ahead, don't bother */ - if (VM_RandomReadHint(area)) + if (VM_RandomReadHint(vma)) goto no_cached_page; /* - * The readahead code wants to be told about each and every page - * so it can build and shrink its windows appropriately - * - * For sequential accesses, we use the generic readahead logic. - */ - if (VM_SequentialReadHint(area)) - page_cache_readahead(mapping, ra, file, pgoff, 1); - - /* * Do we have something in the page cache already? */ retry_find: - page = find_get_page(mapping, pgoff); + page = find_lock_page(mapping, vmf->pgoff); + /* + * For sequential accesses, we use the generic readahead logic. + */ + if (VM_SequentialReadHint(vma)) { + if (!page) { + page_cache_sync_readahead(mapping, ra, file, + vmf->pgoff, 1); + page = find_lock_page(mapping, vmf->pgoff); + if (!page) + goto no_cached_page; + } + if (PageReadahead(page)) { + page_cache_async_readahead(mapping, ra, file, page, + vmf->pgoff, 1); + } + } + if (!page) { unsigned long ra_pages; - if (VM_SequentialReadHint(area)) { - handle_ra_miss(mapping, ra, pgoff); - goto no_cached_page; - } ra->mmap_miss++; /* @@ -1387,7 +1377,7 @@ retry_find: * check did_readaround, as this is an inner loop. */ if (!did_readaround) { - majmin = VM_FAULT_MAJOR; + ret = VM_FAULT_MAJOR; count_vm_event(PGMAJFAULT); } did_readaround = 1; @@ -1395,11 +1385,11 @@ retry_find: if (ra_pages) { pgoff_t start = 0; - if (pgoff > ra_pages / 2) - start = pgoff - ra_pages / 2; + if (vmf->pgoff > ra_pages / 2) + start = vmf->pgoff - ra_pages / 2; do_page_cache_readahead(mapping, file, start, ra_pages); } - page = find_get_page(mapping, pgoff); + page = find_lock_page(mapping, vmf->pgoff); if (!page) goto no_cached_page; } @@ -1408,35 +1398,42 @@ retry_find: ra->mmap_hit++; /* - * Ok, found a page in the page cache, now we need to check - * that it's up-to-date. + * We have a locked page in the page cache, now we need to check + * that it's up-to-date. If not, it is going to be due to an error. */ - if (!PageUptodate(page)) + if (unlikely(!PageUptodate(page))) goto page_not_uptodate; -success: + /* Must recheck i_size under page lock */ + size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + if (unlikely(vmf->pgoff >= size)) { + unlock_page(page); + goto outside_data_content; + } + /* * Found the page and have a reference on it. */ mark_page_accessed(page); - if (type) - *type = majmin; - return page; + ra->prev_index = page->index; + vmf->page = page; + return ret | VM_FAULT_LOCKED; outside_data_content: /* * An external ptracer can access pages that normally aren't * accessible.. */ - if (area->vm_mm == current->mm) - return NOPAGE_SIGBUS; + if (vma->vm_mm == current->mm) + return VM_FAULT_SIGBUS; + /* Fall through to the non-read-ahead case */ no_cached_page: /* * We're only likely to ever get here if MADV_RANDOM is in * effect. */ - error = page_cache_read(file, pgoff); + error = page_cache_read(file, vmf->pgoff); /* * The page we want has now been added to the page cache. @@ -1452,12 +1449,13 @@ no_cached_page: * to schedule I/O. */ if (error == -ENOMEM) - return NOPAGE_OOM; - return NOPAGE_SIGBUS; + return VM_FAULT_OOM; + return VM_FAULT_SIGBUS; page_not_uptodate: + /* IO error path */ if (!did_readaround) { - majmin = VM_FAULT_MAJOR; + ret = VM_FAULT_MAJOR; count_vm_event(PGMAJFAULT); } @@ -1467,217 +1465,21 @@ page_not_uptodate: * because there really aren't any performance issues here * and we need to check for errors. */ - lock_page(page); - - /* Somebody truncated the page on us? */ - if (!page->mapping) { - unlock_page(page); - page_cache_release(page); - goto retry_all; - } - - /* Somebody else successfully read it in? */ - if (PageUptodate(page)) { - unlock_page(page); - goto success; - } ClearPageError(page); error = mapping->a_ops->readpage(file, page); - if (!error) { - wait_on_page_locked(page); - if (PageUptodate(page)) - goto success; - } else if (error == AOP_TRUNCATED_PAGE) { - page_cache_release(page); - goto retry_find; - } - - /* - * Things didn't work out. Return zero to tell the - * mm layer so, possibly freeing the page cache page first. - */ - shrink_readahead_size_eio(file, ra); page_cache_release(page); - return NOPAGE_SIGBUS; -} -EXPORT_SYMBOL(filemap_nopage); -static struct page * filemap_getpage(struct file *file, unsigned long pgoff, - int nonblock) -{ - struct address_space *mapping = file->f_mapping; - struct page *page; - int error; - - /* - * Do we have something in the page cache already? - */ -retry_find: - page = find_get_page(mapping, pgoff); - if (!page) { - if (nonblock) - return NULL; - goto no_cached_page; - } - - /* - * Ok, found a page in the page cache, now we need to check - * that it's up-to-date. - */ - if (!PageUptodate(page)) { - if (nonblock) { - page_cache_release(page); - return NULL; - } - goto page_not_uptodate; - } - -success: - /* - * Found the page and have a reference on it. - */ - mark_page_accessed(page); - return page; - -no_cached_page: - error = page_cache_read(file, pgoff); - - /* - * The page we want has now been added to the page cache. - * In the unlikely event that someone removed it in the - * meantime, we'll just come back here and read it again. - */ - if (error >= 0) - goto retry_find; - - /* - * An error return from page_cache_read can result if the - * system is low on memory, or a problem occurs while trying - * to schedule I/O. - */ - return NULL; - -page_not_uptodate: - lock_page(page); - - /* Did it get truncated while we waited for it? */ - if (!page->mapping) { - unlock_page(page); - goto err; - } - - /* Did somebody else get it up-to-date? */ - if (PageUptodate(page)) { - unlock_page(page); - goto success; - } - - error = mapping->a_ops->readpage(file, page); - if (!error) { - wait_on_page_locked(page); - if (PageUptodate(page)) - goto success; - } else if (error == AOP_TRUNCATED_PAGE) { - page_cache_release(page); - goto retry_find; - } - - /* - * Umm, take care of errors if the page isn't up-to-date. - * Try to re-read it _once_. We do this synchronously, - * because there really aren't any performance issues here - * and we need to check for errors. - */ - lock_page(page); - - /* Somebody truncated the page on us? */ - if (!page->mapping) { - unlock_page(page); - goto err; - } - /* Somebody else successfully read it in? */ - if (PageUptodate(page)) { - unlock_page(page); - goto success; - } - - ClearPageError(page); - error = mapping->a_ops->readpage(file, page); - if (!error) { - wait_on_page_locked(page); - if (PageUptodate(page)) - goto success; - } else if (error == AOP_TRUNCATED_PAGE) { - page_cache_release(page); + if (!error || error == AOP_TRUNCATED_PAGE) goto retry_find; - } - /* - * Things didn't work out. Return zero to tell the - * mm layer so, possibly freeing the page cache page first. - */ -err: - page_cache_release(page); - - return NULL; -} - -int filemap_populate(struct vm_area_struct *vma, unsigned long addr, - unsigned long len, pgprot_t prot, unsigned long pgoff, - int nonblock) -{ - struct file *file = vma->vm_file; - struct address_space *mapping = file->f_mapping; - struct inode *inode = mapping->host; - unsigned long size; - struct mm_struct *mm = vma->vm_mm; - struct page *page; - int err; - - if (!nonblock) - force_page_cache_readahead(mapping, vma->vm_file, - pgoff, len >> PAGE_CACHE_SHIFT); - -repeat: - size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - if (pgoff + (len >> PAGE_CACHE_SHIFT) > size) - return -EINVAL; - - page = filemap_getpage(file, pgoff, nonblock); - - /* XXX: This is wrong, a filesystem I/O error may have happened. Fix that as - * done in shmem_populate calling shmem_getpage */ - if (!page && !nonblock) - return -ENOMEM; - - if (page) { - err = install_page(mm, vma, addr, page, prot); - if (err) { - page_cache_release(page); - return err; - } - } else if (vma->vm_flags & VM_NONLINEAR) { - /* No page was found just because we can't read it in now (being - * here implies nonblock != 0), but the page may exist, so set - * the PTE to fault it in later. */ - err = install_file_pte(mm, vma, addr, pgoff, prot); - if (err) - return err; - } - - len -= PAGE_SIZE; - addr += PAGE_SIZE; - pgoff++; - if (len) - goto repeat; - - return 0; + /* Things didn't work out. Return zero to tell the mm layer so. */ + shrink_readahead_size_eio(file, ra); + return VM_FAULT_SIGBUS; } -EXPORT_SYMBOL(filemap_populate); +EXPORT_SYMBOL(filemap_fault); struct vm_operations_struct generic_file_vm_ops = { - .nopage = filemap_nopage, - .populate = filemap_populate, + .fault = filemap_fault, }; /* This is used for a general mmap of a disk file */ @@ -1690,6 +1492,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma) return -ENOEXEC; file_accessed(file); vma->vm_ops = &generic_file_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; return 0; } diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c index 65ffc321f0c0..53ee6a299635 100644 --- a/mm/filemap_xip.c +++ b/mm/filemap_xip.c @@ -205,62 +205,58 @@ __xip_unmap (struct address_space * mapping, } /* - * xip_nopage() is invoked via the vma operations vector for a + * xip_fault() is invoked via the vma operations vector for a * mapped memory region to read in file data during a page fault. * - * This function is derived from filemap_nopage, but used for execute in place + * This function is derived from filemap_fault, but used for execute in place */ -static struct page * -xip_file_nopage(struct vm_area_struct * area, - unsigned long address, - int *type) +static int xip_file_fault(struct vm_area_struct *area, struct vm_fault *vmf) { struct file *file = area->vm_file; struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; struct page *page; - unsigned long size, pgoff, endoff; + pgoff_t size; - pgoff = ((address - area->vm_start) >> PAGE_CACHE_SHIFT) - + area->vm_pgoff; - endoff = ((area->vm_end - area->vm_start) >> PAGE_CACHE_SHIFT) - + area->vm_pgoff; + /* XXX: are VM_FAULT_ codes OK? */ size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - if (pgoff >= size) - return NOPAGE_SIGBUS; + if (vmf->pgoff >= size) + return VM_FAULT_SIGBUS; - page = mapping->a_ops->get_xip_page(mapping, pgoff*(PAGE_SIZE/512), 0); + page = mapping->a_ops->get_xip_page(mapping, + vmf->pgoff*(PAGE_SIZE/512), 0); if (!IS_ERR(page)) goto out; if (PTR_ERR(page) != -ENODATA) - return NOPAGE_SIGBUS; + return VM_FAULT_OOM; /* sparse block */ if ((area->vm_flags & (VM_WRITE | VM_MAYWRITE)) && (area->vm_flags & (VM_SHARED| VM_MAYSHARE)) && (!(mapping->host->i_sb->s_flags & MS_RDONLY))) { /* maybe shared writable, allocate new block */ - page = mapping->a_ops->get_xip_page (mapping, - pgoff*(PAGE_SIZE/512), 1); + page = mapping->a_ops->get_xip_page(mapping, + vmf->pgoff*(PAGE_SIZE/512), 1); if (IS_ERR(page)) - return NOPAGE_SIGBUS; + return VM_FAULT_SIGBUS; /* unmap page at pgoff from all other vmas */ - __xip_unmap(mapping, pgoff); + __xip_unmap(mapping, vmf->pgoff); } else { /* not shared and writable, use xip_sparse_page() */ page = xip_sparse_page(); if (!page) - return NOPAGE_OOM; + return VM_FAULT_OOM; } out: page_cache_get(page); - return page; + vmf->page = page; + return 0; } static struct vm_operations_struct xip_file_vm_ops = { - .nopage = xip_file_nopage, + .fault = xip_file_fault, }; int xip_file_mmap(struct file * file, struct vm_area_struct * vma) @@ -269,6 +265,7 @@ int xip_file_mmap(struct file * file, struct vm_area_struct * vma) file_accessed(file); vma->vm_ops = &xip_file_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; return 0; } EXPORT_SYMBOL_GPL(xip_file_mmap); diff --git a/mm/fremap.c b/mm/fremap.c index 4e3f53dd5fd4..c395b1abf082 100644 --- a/mm/fremap.c +++ b/mm/fremap.c @@ -20,13 +20,14 @@ #include <asm/cacheflush.h> #include <asm/tlbflush.h> -static int zap_pte(struct mm_struct *mm, struct vm_area_struct *vma, +static void zap_pte(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { pte_t pte = *ptep; - struct page *page = NULL; if (pte_present(pte)) { + struct page *page; + flush_cache_page(vma, addr, pte_pfn(pte)); pte = ptep_clear_flush(vma, addr, ptep); page = vm_normal_page(vma, addr, pte); @@ -35,68 +36,21 @@ static int zap_pte(struct mm_struct *mm, struct vm_area_struct *vma, set_page_dirty(page); page_remove_rmap(page, vma); page_cache_release(page); + update_hiwater_rss(mm); + dec_mm_counter(mm, file_rss); } } else { if (!pte_file(pte)) free_swap_and_cache(pte_to_swp_entry(pte)); pte_clear_not_present_full(mm, addr, ptep, 0); } - return !!page; } /* - * Install a file page to a given virtual memory address, release any - * previously existing mapping. - */ -int install_page(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long addr, struct page *page, pgprot_t prot) -{ - struct inode *inode; - pgoff_t size; - int err = -ENOMEM; - pte_t *pte; - pte_t pte_val; - spinlock_t *ptl; - - pte = get_locked_pte(mm, addr, &ptl); - if (!pte) - goto out; - - /* - * This page may have been truncated. Tell the - * caller about it. - */ - err = -EINVAL; - inode = vma->vm_file->f_mapping->host; - size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - if (!page->mapping || page->index >= size) - goto unlock; - err = -ENOMEM; - if (page_mapcount(page) > INT_MAX/2) - goto unlock; - - if (pte_none(*pte) || !zap_pte(mm, vma, addr, pte)) - inc_mm_counter(mm, file_rss); - - flush_icache_page(vma, page); - pte_val = mk_pte(page, prot); - set_pte_at(mm, addr, pte, pte_val); - page_add_file_rmap(page); - update_mmu_cache(vma, addr, pte_val); - lazy_mmu_prot_update(pte_val); - err = 0; -unlock: - pte_unmap_unlock(pte, ptl); -out: - return err; -} -EXPORT_SYMBOL(install_page); - -/* * Install a file pte to a given virtual memory address, release any * previously existing mapping. */ -int install_file_pte(struct mm_struct *mm, struct vm_area_struct *vma, +static int install_file_pte(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long pgoff, pgprot_t prot) { int err = -ENOMEM; @@ -107,10 +61,8 @@ int install_file_pte(struct mm_struct *mm, struct vm_area_struct *vma, if (!pte) goto out; - if (!pte_none(*pte) && zap_pte(mm, vma, addr, pte)) { - update_hiwater_rss(mm); - dec_mm_counter(mm, file_rss); - } + if (!pte_none(*pte)) + zap_pte(mm, vma, addr, pte); set_pte_at(mm, addr, pte, pgoff_to_pte(pgoff)); /* @@ -126,6 +78,25 @@ out: return err; } +static int populate_range(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long addr, unsigned long size, pgoff_t pgoff) +{ + int err; + + do { + err = install_file_pte(mm, vma, addr, pgoff, vma->vm_page_prot); + if (err) + return err; + + size -= PAGE_SIZE; + addr += PAGE_SIZE; + pgoff++; + } while (size); + + return 0; + +} + /*** * sys_remap_file_pages - remap arbitrary pages of a shared backing store * file within an existing vma. @@ -183,41 +154,77 @@ asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, * the single existing vma. vm_private_data is used as a * swapout cursor in a VM_NONLINEAR vma. */ - if (vma && (vma->vm_flags & VM_SHARED) && - (!vma->vm_private_data || (vma->vm_flags & VM_NONLINEAR)) && - vma->vm_ops && vma->vm_ops->populate && - end > start && start >= vma->vm_start && - end <= vma->vm_end) { - - /* Must set VM_NONLINEAR before any pages are populated. */ - if (pgoff != linear_page_index(vma, start) && - !(vma->vm_flags & VM_NONLINEAR)) { - if (!has_write_lock) { - up_read(&mm->mmap_sem); - down_write(&mm->mmap_sem); - has_write_lock = 1; - goto retry; - } - mapping = vma->vm_file->f_mapping; - spin_lock(&mapping->i_mmap_lock); - flush_dcache_mmap_lock(mapping); - vma->vm_flags |= VM_NONLINEAR; - vma_prio_tree_remove(vma, &mapping->i_mmap); - vma_nonlinear_insert(vma, &mapping->i_mmap_nonlinear); - flush_dcache_mmap_unlock(mapping); - spin_unlock(&mapping->i_mmap_lock); - } + if (!vma || !(vma->vm_flags & VM_SHARED)) + goto out; - err = vma->vm_ops->populate(vma, start, size, - vma->vm_page_prot, - pgoff, flags & MAP_NONBLOCK); + if (vma->vm_private_data && !(vma->vm_flags & VM_NONLINEAR)) + goto out; + + if (!vma->vm_flags & VM_CAN_NONLINEAR) + goto out; + if (end <= start || start < vma->vm_start || end > vma->vm_end) + goto out; + + /* Must set VM_NONLINEAR before any pages are populated. */ + if (!(vma->vm_flags & VM_NONLINEAR)) { + /* Don't need a nonlinear mapping, exit success */ + if (pgoff == linear_page_index(vma, start)) { + err = 0; + goto out; + } + + if (!has_write_lock) { + up_read(&mm->mmap_sem); + down_write(&mm->mmap_sem); + has_write_lock = 1; + goto retry; + } + mapping = vma->vm_file->f_mapping; /* - * We can't clear VM_NONLINEAR because we'd have to do - * it after ->populate completes, and that would prevent - * downgrading the lock. (Locks can't be upgraded). + * page_mkclean doesn't work on nonlinear vmas, so if + * dirty pages need to be accounted, emulate with linear + * vmas. */ + if (mapping_cap_account_dirty(mapping)) { + unsigned long addr; + + flags &= MAP_NONBLOCK; + addr = mmap_region(vma->vm_file, start, size, + flags, vma->vm_flags, pgoff, 1); + if (IS_ERR_VALUE(addr)) { + err = addr; + } else { + BUG_ON(addr != start); + err = 0; + } + goto out; + } + spin_lock(&mapping->i_mmap_lock); + flush_dcache_mmap_lock(mapping); + vma->vm_flags |= VM_NONLINEAR; + vma_prio_tree_remove(vma, &mapping->i_mmap); + vma_nonlinear_insert(vma, &mapping->i_mmap_nonlinear); + flush_dcache_mmap_unlock(mapping); + spin_unlock(&mapping->i_mmap_lock); + } + + err = populate_range(mm, vma, start, size, pgoff); + if (!err && !(flags & MAP_NONBLOCK)) { + if (unlikely(has_write_lock)) { + downgrade_write(&mm->mmap_sem); + has_write_lock = 0; + } + make_pages_present(start, start+size); } + + /* + * We can't clear VM_NONLINEAR because we'd have to do + * it after ->populate completes, and that would prevent + * downgrading the lock. (Locks can't be upgraded). + */ + +out: if (likely(!has_write_lock)) up_read(&mm->mmap_sem); else diff --git a/mm/highmem.c b/mm/highmem.c index be8f8d36a8b9..7a967bc35152 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -46,9 +46,14 @@ unsigned int nr_free_highpages (void) pg_data_t *pgdat; unsigned int pages = 0; - for_each_online_pgdat(pgdat) + for_each_online_pgdat(pgdat) { pages += zone_page_state(&pgdat->node_zones[ZONE_HIGHMEM], NR_FREE_PAGES); + if (zone_movable_is_highmem()) + pages += zone_page_state( + &pgdat->node_zones[ZONE_MOVABLE], + NR_FREE_PAGES); + } return pages; } diff --git a/mm/hugetlb.c b/mm/hugetlb.c index acc0fb3cf067..f127940ec24f 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -27,6 +27,9 @@ unsigned long max_huge_pages; static struct list_head hugepage_freelists[MAX_NUMNODES]; static unsigned int nr_huge_pages_node[MAX_NUMNODES]; static unsigned int free_huge_pages_node[MAX_NUMNODES]; +static gfp_t htlb_alloc_mask = GFP_HIGHUSER; +unsigned long hugepages_treat_as_movable; + /* * Protects updates to hugepage_freelists, nr_huge_pages, and free_huge_pages */ @@ -68,22 +71,20 @@ static struct page *dequeue_huge_page(struct vm_area_struct *vma, { int nid; struct page *page = NULL; - struct zonelist *zonelist = huge_zonelist(vma, address); + struct zonelist *zonelist = huge_zonelist(vma, address, + htlb_alloc_mask); struct zone **z; for (z = zonelist->zones; *z; z++) { nid = zone_to_nid(*z); - if (cpuset_zone_allowed_softwall(*z, GFP_HIGHUSER) && - !list_empty(&hugepage_freelists[nid])) - break; - } - - if (*z) { - page = list_entry(hugepage_freelists[nid].next, - struct page, lru); - list_del(&page->lru); - free_huge_pages--; - free_huge_pages_node[nid]--; + if (cpuset_zone_allowed_softwall(*z, htlb_alloc_mask) && + !list_empty(&hugepage_freelists[nid])) { + page = list_entry(hugepage_freelists[nid].next, + struct page, lru); + list_del(&page->lru); + free_huge_pages--; + free_huge_pages_node[nid]--; + } } return page; } @@ -103,17 +104,21 @@ static int alloc_fresh_huge_page(void) { static int prev_nid; struct page *page; - static DEFINE_SPINLOCK(nid_lock); int nid; - spin_lock(&nid_lock); + /* + * Copy static prev_nid to local nid, work on that, then copy it + * back to prev_nid afterwards: otherwise there's a window in which + * a racer might pass invalid nid MAX_NUMNODES to alloc_pages_node. + * But we don't need to use a spin_lock here: it really doesn't + * matter if occasionally a racer chooses the same nid as we do. + */ nid = next_node(prev_nid, node_online_map); if (nid == MAX_NUMNODES) nid = first_node(node_online_map); prev_nid = nid; - spin_unlock(&nid_lock); - page = alloc_pages_node(nid, GFP_HIGHUSER|__GFP_COMP|__GFP_NOWARN, + page = alloc_pages_node(nid, htlb_alloc_mask|__GFP_COMP|__GFP_NOWARN, HUGETLB_PAGE_ORDER); if (page) { set_compound_page_dtor(page, free_huge_page); @@ -203,7 +208,7 @@ static void update_and_free_page(struct page *page) 1 << PG_dirty | 1 << PG_active | 1 << PG_reserved | 1 << PG_private | 1<< PG_writeback); } - page[1].lru.next = NULL; + set_compound_page_dtor(page, NULL); set_page_refcounted(page); __free_pages(page, HUGETLB_PAGE_ORDER); } @@ -263,6 +268,19 @@ int hugetlb_sysctl_handler(struct ctl_table *table, int write, max_huge_pages = set_max_huge_pages(max_huge_pages); return 0; } + +int hugetlb_treat_movable_handler(struct ctl_table *table, int write, + struct file *file, void __user *buffer, + size_t *length, loff_t *ppos) +{ + proc_dointvec(table, write, file, buffer, length, ppos); + if (hugepages_treat_as_movable) + htlb_alloc_mask = GFP_HIGHUSER_MOVABLE; + else + htlb_alloc_mask = GFP_HIGHUSER; + return 0; +} + #endif /* CONFIG_SYSCTL */ int hugetlb_report_meminfo(char *buf) @@ -299,15 +317,14 @@ unsigned long hugetlb_total_pages(void) * hugegpage VMA. do_page_fault() is supposed to trap this, so BUG is we get * this far. */ -static struct page *hugetlb_nopage(struct vm_area_struct *vma, - unsigned long address, int *unused) +static int hugetlb_vm_op_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { BUG(); - return NULL; + return 0; } struct vm_operations_struct hugetlb_vm_ops = { - .nopage = hugetlb_nopage, + .fault = hugetlb_vm_op_fault, }; static pte_t make_huge_pte(struct vm_area_struct *vma, struct page *page, @@ -453,7 +470,7 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, avoidcopy = (page_count(old_page) == 1); if (avoidcopy) { set_huge_ptep_writable(vma, address, ptep); - return VM_FAULT_MINOR; + return 0; } page_cache_get(old_page); @@ -478,10 +495,10 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, } page_cache_release(new_page); page_cache_release(old_page); - return VM_FAULT_MINOR; + return 0; } -int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, +static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pte_t *ptep, int write_access) { int ret = VM_FAULT_SIGBUS; @@ -535,7 +552,7 @@ retry: if (idx >= size) goto backout; - ret = VM_FAULT_MINOR; + ret = 0; if (!pte_none(*ptep)) goto backout; @@ -586,7 +603,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, return ret; } - ret = VM_FAULT_MINOR; + ret = 0; spin_lock(&mm->page_table_lock); /* Check for a racing update before calling hugetlb_cow */ @@ -625,7 +642,7 @@ int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, spin_unlock(&mm->page_table_lock); ret = hugetlb_fault(mm, vma, vaddr, 0); spin_lock(&mm->page_table_lock); - if (ret == VM_FAULT_MINOR) + if (!(ret & VM_FAULT_MAJOR)) continue; remainder = 0; diff --git a/mm/memory.c b/mm/memory.c index b3d73bb1f680..8aace3db3a54 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1047,7 +1047,8 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, if (pages) foll_flags |= FOLL_GET; if (!write && !(vma->vm_flags & VM_LOCKED) && - (!vma->vm_ops || !vma->vm_ops->nopage)) + (!vma->vm_ops || (!vma->vm_ops->nopage && + !vma->vm_ops->fault))) foll_flags |= FOLL_ANON; do { @@ -1067,31 +1068,30 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, cond_resched(); while (!(page = follow_page(vma, start, foll_flags))) { int ret; - ret = __handle_mm_fault(mm, vma, start, + ret = handle_mm_fault(mm, vma, start, foll_flags & FOLL_WRITE); + if (ret & VM_FAULT_ERROR) { + if (ret & VM_FAULT_OOM) + return i ? i : -ENOMEM; + else if (ret & VM_FAULT_SIGBUS) + return i ? i : -EFAULT; + BUG(); + } + if (ret & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; + /* - * The VM_FAULT_WRITE bit tells us that do_wp_page has - * broken COW when necessary, even if maybe_mkwrite - * decided not to set pte_write. We can thus safely do - * subsequent page lookups as if they were reads. + * The VM_FAULT_WRITE bit tells us that + * do_wp_page has broken COW when necessary, + * even if maybe_mkwrite decided not to set + * pte_write. We can thus safely do subsequent + * page lookups as if they were reads. */ if (ret & VM_FAULT_WRITE) foll_flags &= ~FOLL_WRITE; - - switch (ret & ~VM_FAULT_WRITE) { - case VM_FAULT_MINOR: - tsk->min_flt++; - break; - case VM_FAULT_MAJOR: - tsk->maj_flt++; - break; - case VM_FAULT_SIGBUS: - return i ? i : -EFAULT; - case VM_FAULT_OOM: - return i ? i : -ENOMEM; - default: - BUG(); - } + cond_resched(); } if (pages) { @@ -1638,7 +1638,7 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, { struct page *old_page, *new_page; pte_t entry; - int reuse = 0, ret = VM_FAULT_MINOR; + int reuse = 0, ret = 0; struct page *dirty_page = NULL; old_page = vm_normal_page(vma, address, orig_pte); @@ -1715,11 +1715,11 @@ gotten: if (unlikely(anon_vma_prepare(vma))) goto oom; if (old_page == ZERO_PAGE(address)) { - new_page = alloc_zeroed_user_highpage(vma, address); + new_page = alloc_zeroed_user_highpage_movable(vma, address); if (!new_page) goto oom; } else { - new_page = alloc_page_vma(GFP_HIGHUSER, vma, address); + new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, address); if (!new_page) goto oom; cow_user_page(new_page, old_page, address, vma); @@ -1765,6 +1765,15 @@ gotten: unlock: pte_unmap_unlock(page_table, ptl); if (dirty_page) { + /* + * Yes, Virginia, this is actually required to prevent a race + * with clear_page_dirty_for_io() from clearing the page dirty + * bit after it clear all dirty ptes, but before a racing + * do_wp_page installs a dirty pte. + * + * do_no_page is protected similarly. + */ + wait_on_page_locked(dirty_page); set_page_dirty_balance(dirty_page); put_page(dirty_page); } @@ -1831,6 +1840,13 @@ static int unmap_mapping_range_vma(struct vm_area_struct *vma, unsigned long restart_addr; int need_break; + /* + * files that support invalidating or truncating portions of the + * file from under mmaped areas must have their ->fault function + * return a locked page (and set VM_FAULT_LOCKED in the return). + * This provides synchronisation against concurrent unmapping here. + */ + again: restart_addr = vma->vm_truncate_count; if (is_restart_addr(restart_addr) && start_addr < restart_addr) { @@ -1959,17 +1975,8 @@ void unmap_mapping_range(struct address_space *mapping, spin_lock(&mapping->i_mmap_lock); - /* serialize i_size write against truncate_count write */ - smp_wmb(); - /* Protect against page faults, and endless unmapping loops */ + /* Protect against endless unmapping loops */ mapping->truncate_count++; - /* - * For archs where spin_lock has inclusive semantics like ia64 - * this smp_mb() will prevent to read pagetable contents - * before the truncate_count increment is visible to - * other cpus. - */ - smp_mb(); if (unlikely(is_restart_addr(mapping->truncate_count))) { if (mapping->truncate_count == 0) reset_vma_truncate_counts(mapping); @@ -2008,8 +2015,18 @@ int vmtruncate(struct inode * inode, loff_t offset) if (IS_SWAPFILE(inode)) goto out_busy; i_size_write(inode, offset); + + /* + * unmap_mapping_range is called twice, first simply for efficiency + * so that truncate_inode_pages does fewer single-page unmaps. However + * after this first call, and before truncate_inode_pages finishes, + * it is possible for private pages to be COWed, which remain after + * truncate_inode_pages finishes, hence the second unmap_mapping_range + * call must be made for correctness. + */ unmap_mapping_range(mapping, offset + PAGE_SIZE - 1, 0, 1); truncate_inode_pages(mapping, offset); + unmap_mapping_range(mapping, offset + PAGE_SIZE - 1, 0, 1); goto out_truncate; do_expand: @@ -2049,6 +2066,7 @@ int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end) down_write(&inode->i_alloc_sem); unmap_mapping_range(mapping, offset, (end - offset), 1); truncate_inode_pages_range(mapping, offset, end); + unmap_mapping_range(mapping, offset, (end - offset), 1); inode->i_op->truncate_range(inode, offset, end); up_write(&inode->i_alloc_sem); mutex_unlock(&inode->i_mutex); @@ -2130,7 +2148,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, struct page *page; swp_entry_t entry; pte_t pte; - int ret = VM_FAULT_MINOR; + int ret = 0; if (!pte_unmap_same(mm, pmd, page_table, orig_pte)) goto out; @@ -2198,15 +2216,15 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, unlock_page(page); if (write_access) { + /* XXX: We could OR the do_wp_page code with this one? */ if (do_wp_page(mm, vma, address, - page_table, pmd, ptl, pte) == VM_FAULT_OOM) + page_table, pmd, ptl, pte) & VM_FAULT_OOM) ret = VM_FAULT_OOM; goto out; } /* No need to invalidate - it was non-present before */ update_mmu_cache(vma, address, pte); - lazy_mmu_prot_update(pte); unlock: pte_unmap_unlock(page_table, ptl); out: @@ -2237,7 +2255,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, if (unlikely(anon_vma_prepare(vma))) goto oom; - page = alloc_zeroed_user_highpage(vma, address); + page = alloc_zeroed_user_highpage_movable(vma, address); if (!page) goto oom; @@ -2271,7 +2289,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma, lazy_mmu_prot_update(entry); unlock: pte_unmap_unlock(page_table, ptl); - return VM_FAULT_MINOR; + return 0; release: page_cache_release(page); goto unlock; @@ -2280,10 +2298,10 @@ oom: } /* - * do_no_page() tries to create a new page mapping. It aggressively + * __do_fault() tries to create a new page mapping. It aggressively * tries to share with existing pages, but makes a separate copy if - * the "write_access" parameter is true in order to avoid the next - * page fault. + * the FAULT_FLAG_WRITE is set in the flags parameter in order to avoid + * the next page fault. * * As this is called only for pages that do not currently exist, we * do not need to flush old virtual caches or the TLB. @@ -2292,89 +2310,100 @@ oom: * but allow concurrent faults), and pte mapped but not yet locked. * We return with mmap_sem still held, but pte unmapped and unlocked. */ -static int do_no_page(struct mm_struct *mm, struct vm_area_struct *vma, +static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pte_t *page_table, pmd_t *pmd, - int write_access) + pgoff_t pgoff, unsigned int flags, pte_t orig_pte) { spinlock_t *ptl; - struct page *new_page; - struct address_space *mapping = NULL; + struct page *page; pte_t entry; - unsigned int sequence = 0; - int ret = VM_FAULT_MINOR; int anon = 0; struct page *dirty_page = NULL; + struct vm_fault vmf; + int ret; + + vmf.virtual_address = (void __user *)(address & PAGE_MASK); + vmf.pgoff = pgoff; + vmf.flags = flags; + vmf.page = NULL; pte_unmap(page_table); BUG_ON(vma->vm_flags & VM_PFNMAP); - if (vma->vm_file) { - mapping = vma->vm_file->f_mapping; - sequence = mapping->truncate_count; - smp_rmb(); /* serializes i_size against truncate_count */ + if (likely(vma->vm_ops->fault)) { + ret = vma->vm_ops->fault(vma, &vmf); + if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE))) + return ret; + } else { + /* Legacy ->nopage path */ + ret = 0; + vmf.page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &ret); + /* no page was available -- either SIGBUS or OOM */ + if (unlikely(vmf.page == NOPAGE_SIGBUS)) + return VM_FAULT_SIGBUS; + else if (unlikely(vmf.page == NOPAGE_OOM)) + return VM_FAULT_OOM; } -retry: - new_page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &ret); + /* - * No smp_rmb is needed here as long as there's a full - * spin_lock/unlock sequence inside the ->nopage callback - * (for the pagecache lookup) that acts as an implicit - * smp_mb() and prevents the i_size read to happen - * after the next truncate_count read. + * For consistency in subsequent calls, make the faulted page always + * locked. */ - - /* no page was available -- either SIGBUS, OOM or REFAULT */ - if (unlikely(new_page == NOPAGE_SIGBUS)) - return VM_FAULT_SIGBUS; - else if (unlikely(new_page == NOPAGE_OOM)) - return VM_FAULT_OOM; - else if (unlikely(new_page == NOPAGE_REFAULT)) - return VM_FAULT_MINOR; + if (unlikely(!(ret & VM_FAULT_LOCKED))) + lock_page(vmf.page); + else + VM_BUG_ON(!PageLocked(vmf.page)); /* * Should we do an early C-O-W break? */ - if (write_access) { + page = vmf.page; + if (flags & FAULT_FLAG_WRITE) { if (!(vma->vm_flags & VM_SHARED)) { - struct page *page; - - if (unlikely(anon_vma_prepare(vma))) - goto oom; - page = alloc_page_vma(GFP_HIGHUSER, vma, address); - if (!page) - goto oom; - copy_user_highpage(page, new_page, address, vma); - page_cache_release(new_page); - new_page = page; anon = 1; - + if (unlikely(anon_vma_prepare(vma))) { + ret = VM_FAULT_OOM; + goto out; + } + page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, + vma, address); + if (!page) { + ret = VM_FAULT_OOM; + goto out; + } + copy_user_highpage(page, vmf.page, address, vma); } else { - /* if the page will be shareable, see if the backing + /* + * If the page will be shareable, see if the backing * address space wants to know that the page is about - * to become writable */ - if (vma->vm_ops->page_mkwrite && - vma->vm_ops->page_mkwrite(vma, new_page) < 0 - ) { - page_cache_release(new_page); - return VM_FAULT_SIGBUS; + * to become writable + */ + if (vma->vm_ops->page_mkwrite) { + unlock_page(page); + if (vma->vm_ops->page_mkwrite(vma, page) < 0) { + ret = VM_FAULT_SIGBUS; + anon = 1; /* no anon but release vmf.page */ + goto out_unlocked; + } + lock_page(page); + /* + * XXX: this is not quite right (racy vs + * invalidate) to unlock and relock the page + * like this, however a better fix requires + * reworking page_mkwrite locking API, which + * is better done later. + */ + if (!page->mapping) { + ret = 0; + anon = 1; /* no anon but release vmf.page */ + goto out; + } } } + } page_table = pte_offset_map_lock(mm, pmd, address, &ptl); - /* - * For a file-backed vma, someone could have truncated or otherwise - * invalidated this page. If unmap_mapping_range got called, - * retry getting the page. - */ - if (mapping && unlikely(sequence != mapping->truncate_count)) { - pte_unmap_unlock(page_table, ptl); - page_cache_release(new_page); - cond_resched(); - sequence = mapping->truncate_count; - smp_rmb(); - goto retry; - } /* * This silly early PAGE_DIRTY setting removes a race @@ -2387,45 +2416,63 @@ retry: * handle that later. */ /* Only go through if we didn't race with anybody else... */ - if (pte_none(*page_table)) { - flush_icache_page(vma, new_page); - entry = mk_pte(new_page, vma->vm_page_prot); - if (write_access) + if (likely(pte_same(*page_table, orig_pte))) { + flush_icache_page(vma, page); + entry = mk_pte(page, vma->vm_page_prot); + if (flags & FAULT_FLAG_WRITE) entry = maybe_mkwrite(pte_mkdirty(entry), vma); set_pte_at(mm, address, page_table, entry); if (anon) { - inc_mm_counter(mm, anon_rss); - lru_cache_add_active(new_page); - page_add_new_anon_rmap(new_page, vma, address); + inc_mm_counter(mm, anon_rss); + lru_cache_add_active(page); + page_add_new_anon_rmap(page, vma, address); } else { inc_mm_counter(mm, file_rss); - page_add_file_rmap(new_page); - if (write_access) { - dirty_page = new_page; + page_add_file_rmap(page); + if (flags & FAULT_FLAG_WRITE) { + dirty_page = page; get_page(dirty_page); } } + + /* no need to invalidate: a not-present page won't be cached */ + update_mmu_cache(vma, address, entry); + lazy_mmu_prot_update(entry); } else { - /* One of our sibling threads was faster, back out. */ - page_cache_release(new_page); - goto unlock; + if (anon) + page_cache_release(page); + else + anon = 1; /* no anon but release faulted_page */ } - /* no need to invalidate: a not-present page shouldn't be cached */ - update_mmu_cache(vma, address, entry); - lazy_mmu_prot_update(entry); -unlock: pte_unmap_unlock(page_table, ptl); - if (dirty_page) { + +out: + unlock_page(vmf.page); +out_unlocked: + if (anon) + page_cache_release(vmf.page); + else if (dirty_page) { set_page_dirty_balance(dirty_page); put_page(dirty_page); } + return ret; -oom: - page_cache_release(new_page); - return VM_FAULT_OOM; } +static int do_linear_fault(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long address, pte_t *page_table, pmd_t *pmd, + int write_access, pte_t orig_pte) +{ + pgoff_t pgoff = (((address & PAGE_MASK) + - vma->vm_start) >> PAGE_CACHE_SHIFT) + vma->vm_pgoff; + unsigned int flags = (write_access ? FAULT_FLAG_WRITE : 0); + + return __do_fault(mm, vma, address, page_table, pmd, pgoff, + flags, orig_pte); +} + + /* * do_no_pfn() tries to create a new page mapping for a page without * a struct_page backing it @@ -2449,7 +2496,6 @@ static noinline int do_no_pfn(struct mm_struct *mm, struct vm_area_struct *vma, spinlock_t *ptl; pte_t entry; unsigned long pfn; - int ret = VM_FAULT_MINOR; pte_unmap(page_table); BUG_ON(!(vma->vm_flags & VM_PFNMAP)); @@ -2461,7 +2507,7 @@ static noinline int do_no_pfn(struct mm_struct *mm, struct vm_area_struct *vma, else if (unlikely(pfn == NOPFN_SIGBUS)) return VM_FAULT_SIGBUS; else if (unlikely(pfn == NOPFN_REFAULT)) - return VM_FAULT_MINOR; + return 0; page_table = pte_offset_map_lock(mm, pmd, address, &ptl); @@ -2473,7 +2519,7 @@ static noinline int do_no_pfn(struct mm_struct *mm, struct vm_area_struct *vma, set_pte_at(mm, address, page_table, entry); } pte_unmap_unlock(page_table, ptl); - return ret; + return 0; } /* @@ -2485,33 +2531,30 @@ static noinline int do_no_pfn(struct mm_struct *mm, struct vm_area_struct *vma, * but allow concurrent faults), and pte mapped but not yet locked. * We return with mmap_sem still held, but pte unmapped and unlocked. */ -static int do_file_page(struct mm_struct *mm, struct vm_area_struct *vma, +static int do_nonlinear_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pte_t *page_table, pmd_t *pmd, int write_access, pte_t orig_pte) { + unsigned int flags = FAULT_FLAG_NONLINEAR | + (write_access ? FAULT_FLAG_WRITE : 0); pgoff_t pgoff; - int err; if (!pte_unmap_same(mm, pmd, page_table, orig_pte)) - return VM_FAULT_MINOR; + return 0; - if (unlikely(!(vma->vm_flags & VM_NONLINEAR))) { + if (unlikely(!(vma->vm_flags & VM_NONLINEAR) || + !(vma->vm_flags & VM_CAN_NONLINEAR))) { /* * Page table corrupted: show pte and kill process. */ print_bad_pte(vma, orig_pte, address); return VM_FAULT_OOM; } - /* We can then assume vm->vm_ops && vma->vm_ops->populate */ pgoff = pte_to_pgoff(orig_pte); - err = vma->vm_ops->populate(vma, address & PAGE_MASK, PAGE_SIZE, - vma->vm_page_prot, pgoff, 0); - if (err == -ENOMEM) - return VM_FAULT_OOM; - if (err) - return VM_FAULT_SIGBUS; - return VM_FAULT_MAJOR; + + return __do_fault(mm, vma, address, page_table, pmd, pgoff, + flags, orig_pte); } /* @@ -2538,10 +2581,9 @@ static inline int handle_pte_fault(struct mm_struct *mm, if (!pte_present(entry)) { if (pte_none(entry)) { if (vma->vm_ops) { - if (vma->vm_ops->nopage) - return do_no_page(mm, vma, address, - pte, pmd, - write_access); + if (vma->vm_ops->fault || vma->vm_ops->nopage) + return do_linear_fault(mm, vma, address, + pte, pmd, write_access, entry); if (unlikely(vma->vm_ops->nopfn)) return do_no_pfn(mm, vma, address, pte, pmd, write_access); @@ -2550,7 +2592,7 @@ static inline int handle_pte_fault(struct mm_struct *mm, pte, pmd, write_access); } if (pte_file(entry)) - return do_file_page(mm, vma, address, + return do_nonlinear_fault(mm, vma, address, pte, pmd, write_access, entry); return do_swap_page(mm, vma, address, pte, pmd, write_access, entry); @@ -2582,13 +2624,13 @@ static inline int handle_pte_fault(struct mm_struct *mm, } unlock: pte_unmap_unlock(pte, ptl); - return VM_FAULT_MINOR; + return 0; } /* * By the time we get here, we already hold the mm semaphore */ -int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, +int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, int write_access) { pgd_t *pgd; @@ -2617,7 +2659,7 @@ int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, return handle_pte_fault(mm, vma, address, pte, pmd, write_access); } -EXPORT_SYMBOL_GPL(__handle_mm_fault); +EXPORT_SYMBOL_GPL(handle_mm_fault); #ifndef __PAGETABLE_PUD_FOLDED /* @@ -2823,3 +2865,4 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in return buf - old_buf; } +EXPORT_SYMBOL_GPL(access_process_vm); diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 188f8d9c4aed..9f4e9b95e8f2 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -594,7 +594,7 @@ static void migrate_page_add(struct page *page, struct list_head *pagelist, static struct page *new_node_page(struct page *page, unsigned long node, int **x) { - return alloc_pages_node(node, GFP_HIGHUSER, 0); + return alloc_pages_node(node, GFP_HIGHUSER_MOVABLE, 0); } /* @@ -710,7 +710,8 @@ static struct page *new_vma_page(struct page *page, unsigned long private, int * { struct vm_area_struct *vma = (struct vm_area_struct *)private; - return alloc_page_vma(GFP_HIGHUSER, vma, page_address_in_vma(page, vma)); + return alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, + page_address_in_vma(page, vma)); } #else @@ -1202,7 +1203,8 @@ static inline unsigned interleave_nid(struct mempolicy *pol, #ifdef CONFIG_HUGETLBFS /* Return a zonelist suitable for a huge page allocation. */ -struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr) +struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr, + gfp_t gfp_flags) { struct mempolicy *pol = get_vma_policy(current, vma, addr); @@ -1210,7 +1212,7 @@ struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr) unsigned nid; nid = interleave_nid(pol, vma, addr, HPAGE_SHIFT); - return NODE_DATA(nid)->node_zonelists + gfp_zone(GFP_HIGHUSER); + return NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_flags); } return zonelist_policy(GFP_HIGHUSER, pol); } diff --git a/mm/mempool.c b/mm/mempool.c index 3e8f1fed0e1f..02d5ec3feabc 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -62,10 +62,9 @@ mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn, mempool_free_t *free_fn, void *pool_data, int node_id) { mempool_t *pool; - pool = kmalloc_node(sizeof(*pool), GFP_KERNEL, node_id); + pool = kmalloc_node(sizeof(*pool), GFP_KERNEL | __GFP_ZERO, node_id); if (!pool) return NULL; - memset(pool, 0, sizeof(*pool)); pool->elements = kmalloc_node(min_nr * sizeof(void *), GFP_KERNEL, node_id); if (!pool->elements) { diff --git a/mm/migrate.c b/mm/migrate.c index a91ca00abebe..34d8ada053e4 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -761,7 +761,8 @@ static struct page *new_page_node(struct page *p, unsigned long private, *result = &pm->status; - return alloc_pages_node(pm->node, GFP_HIGHUSER | GFP_THISNODE, 0); + return alloc_pages_node(pm->node, + GFP_HIGHUSER_MOVABLE | GFP_THISNODE, 0); } /* diff --git a/mm/mmap.c b/mm/mmap.c index 144b4a290f2c..7afc7a7cec6f 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1165,12 +1165,8 @@ out: mm->locked_vm += len >> PAGE_SHIFT; make_pages_present(addr, addr + len); } - if (flags & MAP_POPULATE) { - up_write(&mm->mmap_sem); - sys_remap_file_pages(addr, len, 0, - pgoff, flags & MAP_NONBLOCK); - down_write(&mm->mmap_sem); - } + if ((flags & MAP_POPULATE) && !(flags & MAP_NONBLOCK)) + make_pages_present(addr, addr + len); return addr; unmap_and_free_vma: @@ -1575,33 +1571,11 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address) } #endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */ -#ifdef CONFIG_STACK_GROWSUP -int expand_stack(struct vm_area_struct *vma, unsigned long address) -{ - return expand_upwards(vma, address); -} - -struct vm_area_struct * -find_extend_vma(struct mm_struct *mm, unsigned long addr) -{ - struct vm_area_struct *vma, *prev; - - addr &= PAGE_MASK; - vma = find_vma_prev(mm, addr, &prev); - if (vma && (vma->vm_start <= addr)) - return vma; - if (!prev || expand_stack(prev, addr)) - return NULL; - if (prev->vm_flags & VM_LOCKED) { - make_pages_present(addr, prev->vm_end); - } - return prev; -} -#else /* * vma is the first one with address < vma->vm_start. Have to extend vma. */ -int expand_stack(struct vm_area_struct *vma, unsigned long address) +static inline int expand_downwards(struct vm_area_struct *vma, + unsigned long address) { int error; @@ -1638,6 +1612,38 @@ int expand_stack(struct vm_area_struct *vma, unsigned long address) return error; } +int expand_stack_downwards(struct vm_area_struct *vma, unsigned long address) +{ + return expand_downwards(vma, address); +} + +#ifdef CONFIG_STACK_GROWSUP +int expand_stack(struct vm_area_struct *vma, unsigned long address) +{ + return expand_upwards(vma, address); +} + +struct vm_area_struct * +find_extend_vma(struct mm_struct *mm, unsigned long addr) +{ + struct vm_area_struct *vma, *prev; + + addr &= PAGE_MASK; + vma = find_vma_prev(mm, addr, &prev); + if (vma && (vma->vm_start <= addr)) + return vma; + if (!prev || expand_stack(prev, addr)) + return NULL; + if (prev->vm_flags & VM_LOCKED) + make_pages_present(addr, prev->vm_end); + return prev; +} +#else +int expand_stack(struct vm_area_struct *vma, unsigned long address) +{ + return expand_downwards(vma, address); +} + struct vm_area_struct * find_extend_vma(struct mm_struct * mm, unsigned long addr) { @@ -1655,9 +1661,8 @@ find_extend_vma(struct mm_struct * mm, unsigned long addr) start = vma->vm_start; if (expand_stack(vma, addr)) return NULL; - if (vma->vm_flags & VM_LOCKED) { + if (vma->vm_flags & VM_LOCKED) make_pages_present(addr, start); - } return vma; } #endif diff --git a/mm/mprotect.c b/mm/mprotect.c index 3b8f3c0c63f3..e8346c30abec 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -128,7 +128,7 @@ static void change_protection(struct vm_area_struct *vma, flush_tlb_range(vma, start, end); } -static int +int mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, unsigned long start, unsigned long end, unsigned long newflags) { diff --git a/mm/mremap.c b/mm/mremap.c index bc7c52efc71b..8ea5c2412c6e 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -120,7 +120,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd, #define LATENCY_LIMIT (64 * PAGE_SIZE) -static unsigned long move_page_tables(struct vm_area_struct *vma, +unsigned long move_page_tables(struct vm_area_struct *vma, unsigned long old_addr, struct vm_area_struct *new_vma, unsigned long new_addr, unsigned long len) { diff --git a/mm/nommu.c b/mm/nommu.c index 8bbbf147a794..1b105d28949f 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1341,11 +1341,10 @@ int in_gate_area_no_task(unsigned long addr) return 0; } -struct page *filemap_nopage(struct vm_area_struct *area, - unsigned long address, int *type) +int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { BUG(); - return NULL; + return 0; } /* diff --git a/mm/page-writeback.c b/mm/page-writeback.c index ea9da3bed3e9..63512a9ed57e 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -824,6 +824,7 @@ int __set_page_dirty_nobuffers(struct page *page) mapping2 = page_mapping(page); if (mapping2) { /* Race with truncate? */ BUG_ON(mapping2 != mapping); + WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page)); if (mapping_cap_account_dirty(mapping)) { __inc_zone_page_state(page, NR_FILE_DIRTY); task_io_account_write(PAGE_CACHE_SIZE); @@ -917,6 +918,9 @@ int clear_page_dirty_for_io(struct page *page) { struct address_space *mapping = page_mapping(page); + BUG_ON(!PageLocked(page)); + + ClearPageReclaim(page); if (mapping && mapping_cap_account_dirty(mapping)) { /* * Yes, Virginia, this is indeed insane. @@ -942,14 +946,19 @@ int clear_page_dirty_for_io(struct page *page) * We basically use the page "master dirty bit" * as a serialization point for all the different * threads doing their things. - * - * FIXME! We still have a race here: if somebody - * adds the page back to the page tables in - * between the "page_mkclean()" and the "TestClearPageDirty()", - * we might have it mapped without the dirty bit set. */ if (page_mkclean(page)) set_page_dirty(page); + /* + * We carefully synchronise fault handlers against + * installing a dirty pte and marking the page dirty + * at this point. We do this by having them hold the + * page lock at some point after installing their + * pte, but before marking the page dirty. + * Pages are always locked coming in here, so we get + * the desired exclusion. See mm/memory.c:do_wp_page() + * for more comments. + */ if (TestClearPageDirty(page)) { dec_zone_page_state(page, NR_FILE_DIRTY); return 1; @@ -978,6 +987,8 @@ int test_clear_page_writeback(struct page *page) } else { ret = TestClearPageWriteback(page); } + if (ret) + dec_zone_page_state(page, NR_WRITEBACK); return ret; } @@ -1003,6 +1014,8 @@ int test_set_page_writeback(struct page *page) } else { ret = TestSetPageWriteback(page); } + if (!ret) + inc_zone_page_state(page, NR_WRITEBACK); return ret; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index f9e4e647d7e8..43cb3b3e1679 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -80,8 +80,9 @@ int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = { 256, #endif #ifdef CONFIG_HIGHMEM - 32 + 32, #endif + 32, }; EXPORT_SYMBOL(totalram_pages); @@ -95,8 +96,9 @@ static char * const zone_names[MAX_NR_ZONES] = { #endif "Normal", #ifdef CONFIG_HIGHMEM - "HighMem" + "HighMem", #endif + "Movable", }; int min_free_kbytes = 1024; @@ -134,6 +136,13 @@ static unsigned long __meminitdata dma_reserve; static unsigned long __meminitdata node_boundary_start_pfn[MAX_NUMNODES]; static unsigned long __meminitdata node_boundary_end_pfn[MAX_NUMNODES]; #endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */ + unsigned long __initdata required_kernelcore; + unsigned long __initdata required_movablecore; + unsigned long __initdata zone_movable_pfn[MAX_NUMNODES]; + + /* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */ + int movable_zone; + EXPORT_SYMBOL(movable_zone); #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ #if MAX_NUMNODES > 1 @@ -444,12 +453,6 @@ static inline int free_pages_check(struct page *page) 1 << PG_reserved | 1 << PG_buddy )))) bad_page(page); - /* - * PageReclaim == PageTail. It is only an error - * for PageReclaim to be set if PageCompound is clear. - */ - if (unlikely(!PageCompound(page) && PageReclaim(page))) - bad_page(page); if (PageDirty(page)) __ClearPageDirty(page); /* @@ -593,7 +596,6 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags) 1 << PG_locked | 1 << PG_active | 1 << PG_dirty | - 1 << PG_reclaim | 1 << PG_slab | 1 << PG_swapcache | 1 << PG_writeback | @@ -608,7 +610,7 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags) if (PageReserved(page)) return 1; - page->flags &= ~(1 << PG_uptodate | 1 << PG_error | + page->flags &= ~(1 << PG_uptodate | 1 << PG_error | 1 << PG_readahead | 1 << PG_referenced | 1 << PG_arch_1 | 1 << PG_owner_priv_1 | 1 << PG_mappedtodisk); set_page_private(page, 0); @@ -1324,7 +1326,7 @@ nofail_alloc: reclaim_state.reclaimed_slab = 0; p->reclaim_state = &reclaim_state; - did_some_progress = try_to_free_pages(zonelist->zones, gfp_mask); + did_some_progress = try_to_free_pages(zonelist->zones, order, gfp_mask); p->reclaim_state = NULL; p->flags &= ~PF_MEMALLOC; @@ -1361,7 +1363,8 @@ nofail_alloc: */ do_retry = 0; if (!(gfp_mask & __GFP_NORETRY)) { - if ((order <= 3) || (gfp_mask & __GFP_REPEAT)) + if ((order <= PAGE_ALLOC_COSTLY_ORDER) || + (gfp_mask & __GFP_REPEAT)) do_retry = 1; if (gfp_mask & __GFP_NOFAIL) do_retry = 1; @@ -1474,13 +1477,14 @@ unsigned int nr_free_buffer_pages(void) { return nr_free_zone_pages(gfp_zone(GFP_USER)); } +EXPORT_SYMBOL_GPL(nr_free_buffer_pages); /* * Amount of free RAM allocatable within all zones */ unsigned int nr_free_pagecache_pages(void) { - return nr_free_zone_pages(gfp_zone(GFP_HIGHUSER)); + return nr_free_zone_pages(gfp_zone(GFP_HIGHUSER_MOVABLE)); } static inline void show_node(struct zone *zone) @@ -2667,6 +2671,63 @@ void __meminit get_pfn_range_for_nid(unsigned int nid, } /* + * This finds a zone that can be used for ZONE_MOVABLE pages. The + * assumption is made that zones within a node are ordered in monotonic + * increasing memory addresses so that the "highest" populated zone is used + */ +void __init find_usable_zone_for_movable(void) +{ + int zone_index; + for (zone_index = MAX_NR_ZONES - 1; zone_index >= 0; zone_index--) { + if (zone_index == ZONE_MOVABLE) + continue; + + if (arch_zone_highest_possible_pfn[zone_index] > + arch_zone_lowest_possible_pfn[zone_index]) + break; + } + + VM_BUG_ON(zone_index == -1); + movable_zone = zone_index; +} + +/* + * The zone ranges provided by the architecture do not include ZONE_MOVABLE + * because it is sized independant of architecture. Unlike the other zones, + * the starting point for ZONE_MOVABLE is not fixed. It may be different + * in each node depending on the size of each node and how evenly kernelcore + * is distributed. This helper function adjusts the zone ranges + * provided by the architecture for a given node by using the end of the + * highest usable zone for ZONE_MOVABLE. This preserves the assumption that + * zones within a node are in order of monotonic increases memory addresses + */ +void __meminit adjust_zone_range_for_zone_movable(int nid, + unsigned long zone_type, + unsigned long node_start_pfn, + unsigned long node_end_pfn, + unsigned long *zone_start_pfn, + unsigned long *zone_end_pfn) +{ + /* Only adjust if ZONE_MOVABLE is on this node */ + if (zone_movable_pfn[nid]) { + /* Size ZONE_MOVABLE */ + if (zone_type == ZONE_MOVABLE) { + *zone_start_pfn = zone_movable_pfn[nid]; + *zone_end_pfn = min(node_end_pfn, + arch_zone_highest_possible_pfn[movable_zone]); + + /* Adjust for ZONE_MOVABLE starting within this range */ + } else if (*zone_start_pfn < zone_movable_pfn[nid] && + *zone_end_pfn > zone_movable_pfn[nid]) { + *zone_end_pfn = zone_movable_pfn[nid]; + + /* Check if this whole range is within ZONE_MOVABLE */ + } else if (*zone_start_pfn >= zone_movable_pfn[nid]) + *zone_start_pfn = *zone_end_pfn; + } +} + +/* * Return the number of pages a zone spans in a node, including holes * present_pages = zone_spanned_pages_in_node() - zone_absent_pages_in_node() */ @@ -2681,6 +2742,9 @@ static unsigned long __meminit zone_spanned_pages_in_node(int nid, get_pfn_range_for_nid(nid, &node_start_pfn, &node_end_pfn); zone_start_pfn = arch_zone_lowest_possible_pfn[zone_type]; zone_end_pfn = arch_zone_highest_possible_pfn[zone_type]; + adjust_zone_range_for_zone_movable(nid, zone_type, + node_start_pfn, node_end_pfn, + &zone_start_pfn, &zone_end_pfn); /* Check that this node has pages within the zone's required range */ if (zone_end_pfn < node_start_pfn || zone_start_pfn > node_end_pfn) @@ -2771,6 +2835,9 @@ static unsigned long __meminit zone_absent_pages_in_node(int nid, zone_end_pfn = min(arch_zone_highest_possible_pfn[zone_type], node_end_pfn); + adjust_zone_range_for_zone_movable(nid, zone_type, + node_start_pfn, node_end_pfn, + &zone_start_pfn, &zone_end_pfn); return __absent_pages_in_range(nid, zone_start_pfn, zone_end_pfn); } @@ -3148,6 +3215,157 @@ unsigned long __init find_max_pfn_with_active_regions(void) return max_pfn; } +unsigned long __init early_calculate_totalpages(void) +{ + int i; + unsigned long totalpages = 0; + + for (i = 0; i < nr_nodemap_entries; i++) + totalpages += early_node_map[i].end_pfn - + early_node_map[i].start_pfn; + + return totalpages; +} + +/* + * Find the PFN the Movable zone begins in each node. Kernel memory + * is spread evenly between nodes as long as the nodes have enough + * memory. When they don't, some nodes will have more kernelcore than + * others + */ +void __init find_zone_movable_pfns_for_nodes(unsigned long *movable_pfn) +{ + int i, nid; + unsigned long usable_startpfn; + unsigned long kernelcore_node, kernelcore_remaining; + int usable_nodes = num_online_nodes(); + + /* + * If movablecore was specified, calculate what size of + * kernelcore that corresponds so that memory usable for + * any allocation type is evenly spread. If both kernelcore + * and movablecore are specified, then the value of kernelcore + * will be used for required_kernelcore if it's greater than + * what movablecore would have allowed. + */ + if (required_movablecore) { + unsigned long totalpages = early_calculate_totalpages(); + unsigned long corepages; + + /* + * Round-up so that ZONE_MOVABLE is at least as large as what + * was requested by the user + */ + required_movablecore = + roundup(required_movablecore, MAX_ORDER_NR_PAGES); + corepages = totalpages - required_movablecore; + + required_kernelcore = max(required_kernelcore, corepages); + } + + /* If kernelcore was not specified, there is no ZONE_MOVABLE */ + if (!required_kernelcore) + return; + + /* usable_startpfn is the lowest possible pfn ZONE_MOVABLE can be at */ + find_usable_zone_for_movable(); + usable_startpfn = arch_zone_lowest_possible_pfn[movable_zone]; + +restart: + /* Spread kernelcore memory as evenly as possible throughout nodes */ + kernelcore_node = required_kernelcore / usable_nodes; + for_each_online_node(nid) { + /* + * Recalculate kernelcore_node if the division per node + * now exceeds what is necessary to satisfy the requested + * amount of memory for the kernel + */ + if (required_kernelcore < kernelcore_node) + kernelcore_node = required_kernelcore / usable_nodes; + + /* + * As the map is walked, we track how much memory is usable + * by the kernel using kernelcore_remaining. When it is + * 0, the rest of the node is usable by ZONE_MOVABLE + */ + kernelcore_remaining = kernelcore_node; + + /* Go through each range of PFNs within this node */ + for_each_active_range_index_in_nid(i, nid) { + unsigned long start_pfn, end_pfn; + unsigned long size_pages; + + start_pfn = max(early_node_map[i].start_pfn, + zone_movable_pfn[nid]); + end_pfn = early_node_map[i].end_pfn; + if (start_pfn >= end_pfn) + continue; + + /* Account for what is only usable for kernelcore */ + if (start_pfn < usable_startpfn) { + unsigned long kernel_pages; + kernel_pages = min(end_pfn, usable_startpfn) + - start_pfn; + + kernelcore_remaining -= min(kernel_pages, + kernelcore_remaining); + required_kernelcore -= min(kernel_pages, + required_kernelcore); + + /* Continue if range is now fully accounted */ + if (end_pfn <= usable_startpfn) { + + /* + * Push zone_movable_pfn to the end so + * that if we have to rebalance + * kernelcore across nodes, we will + * not double account here + */ + zone_movable_pfn[nid] = end_pfn; + continue; + } + start_pfn = usable_startpfn; + } + + /* + * The usable PFN range for ZONE_MOVABLE is from + * start_pfn->end_pfn. Calculate size_pages as the + * number of pages used as kernelcore + */ + size_pages = end_pfn - start_pfn; + if (size_pages > kernelcore_remaining) + size_pages = kernelcore_remaining; + zone_movable_pfn[nid] = start_pfn + size_pages; + + /* + * Some kernelcore has been met, update counts and + * break if the kernelcore for this node has been + * satisified + */ + required_kernelcore -= min(required_kernelcore, + size_pages); + kernelcore_remaining -= size_pages; + if (!kernelcore_remaining) + break; + } + } + + /* + * If there is still required_kernelcore, we do another pass with one + * less node in the count. This will push zone_movable_pfn[nid] further + * along on the nodes that still have memory until kernelcore is + * satisified + */ + usable_nodes--; + if (usable_nodes && required_kernelcore > usable_nodes) + goto restart; + + /* Align start of ZONE_MOVABLE on all nids to MAX_ORDER_NR_PAGES */ + for (nid = 0; nid < MAX_NUMNODES; nid++) + zone_movable_pfn[nid] = + roundup(zone_movable_pfn[nid], MAX_ORDER_NR_PAGES); +} + /** * free_area_init_nodes - Initialise all pg_data_t and zone data * @max_zone_pfn: an array of max PFNs for each zone @@ -3177,19 +3395,37 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn) arch_zone_lowest_possible_pfn[0] = find_min_pfn_with_active_regions(); arch_zone_highest_possible_pfn[0] = max_zone_pfn[0]; for (i = 1; i < MAX_NR_ZONES; i++) { + if (i == ZONE_MOVABLE) + continue; arch_zone_lowest_possible_pfn[i] = arch_zone_highest_possible_pfn[i-1]; arch_zone_highest_possible_pfn[i] = max(max_zone_pfn[i], arch_zone_lowest_possible_pfn[i]); } + arch_zone_lowest_possible_pfn[ZONE_MOVABLE] = 0; + arch_zone_highest_possible_pfn[ZONE_MOVABLE] = 0; + + /* Find the PFNs that ZONE_MOVABLE begins at in each node */ + memset(zone_movable_pfn, 0, sizeof(zone_movable_pfn)); + find_zone_movable_pfns_for_nodes(zone_movable_pfn); /* Print out the zone ranges */ printk("Zone PFN ranges:\n"); - for (i = 0; i < MAX_NR_ZONES; i++) + for (i = 0; i < MAX_NR_ZONES; i++) { + if (i == ZONE_MOVABLE) + continue; printk(" %-8s %8lu -> %8lu\n", zone_names[i], arch_zone_lowest_possible_pfn[i], arch_zone_highest_possible_pfn[i]); + } + + /* Print out the PFNs ZONE_MOVABLE begins at in each node */ + printk("Movable zone start PFN for each node\n"); + for (i = 0; i < MAX_NUMNODES; i++) { + if (zone_movable_pfn[i]) + printk(" Node %d: %lu\n", i, zone_movable_pfn[i]); + } /* Print out the early_node_map[] */ printk("early_node_map[%d] active PFN ranges\n", nr_nodemap_entries); @@ -3206,6 +3442,43 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn) find_min_pfn_for_node(nid), NULL); } } + +static int __init cmdline_parse_core(char *p, unsigned long *core) +{ + unsigned long long coremem; + if (!p) + return -EINVAL; + + coremem = memparse(p, &p); + *core = coremem >> PAGE_SHIFT; + + /* Paranoid check that UL is enough for the coremem value */ + WARN_ON((coremem >> PAGE_SHIFT) > ULONG_MAX); + + return 0; +} + +/* + * kernelcore=size sets the amount of memory for use for allocations that + * cannot be reclaimed or migrated. + */ +static int __init cmdline_parse_kernelcore(char *p) +{ + return cmdline_parse_core(p, &required_kernelcore); +} + +/* + * movablecore=size sets the amount of memory for use for allocations that + * can be reclaimed or migrated. + */ +static int __init cmdline_parse_movablecore(char *p) +{ + return cmdline_parse_core(p, &required_movablecore); +} + +early_param("kernelcore", cmdline_parse_kernelcore); +early_param("movablecore", cmdline_parse_movablecore); + #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ /** diff --git a/mm/pdflush.c b/mm/pdflush.c index 8ce0900dc95c..8f6ee073c0e3 100644 --- a/mm/pdflush.c +++ b/mm/pdflush.c @@ -92,6 +92,7 @@ struct pdflush_work { static int __pdflush(struct pdflush_work *my_work) { current->flags |= PF_FLUSHER | PF_SWAPWRITE; + set_freezable(); my_work->fn = NULL; my_work->who = current; INIT_LIST_HEAD(&my_work->list); diff --git a/mm/readahead.c b/mm/readahead.c index 9861e883fe57..39bf45d43320 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -21,8 +21,16 @@ void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page) } EXPORT_SYMBOL(default_unplug_io_fn); +/* + * Convienent macros for min/max read-ahead pages. + * Note that MAX_RA_PAGES is rounded down, while MIN_RA_PAGES is rounded up. + * The latter is necessary for systems with large page size(i.e. 64k). + */ +#define MAX_RA_PAGES (VM_MAX_READAHEAD*1024 / PAGE_CACHE_SIZE) +#define MIN_RA_PAGES DIV_ROUND_UP(VM_MIN_READAHEAD*1024, PAGE_CACHE_SIZE) + struct backing_dev_info default_backing_dev_info = { - .ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE, + .ra_pages = MAX_RA_PAGES, .state = 0, .capabilities = BDI_CAP_MAP_COPY, .unplug_io_fn = default_unplug_io_fn, @@ -41,82 +49,6 @@ file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping) } EXPORT_SYMBOL_GPL(file_ra_state_init); -/* - * Return max readahead size for this inode in number-of-pages. - */ -static inline unsigned long get_max_readahead(struct file_ra_state *ra) -{ - return ra->ra_pages; -} - -static inline unsigned long get_min_readahead(struct file_ra_state *ra) -{ - return (VM_MIN_READAHEAD * 1024) / PAGE_CACHE_SIZE; -} - -static inline void reset_ahead_window(struct file_ra_state *ra) -{ - /* - * ... but preserve ahead_start + ahead_size value, - * see 'recheck:' label in page_cache_readahead(). - * Note: We never use ->ahead_size as rvalue without - * checking ->ahead_start != 0 first. - */ - ra->ahead_size += ra->ahead_start; - ra->ahead_start = 0; -} - -static inline void ra_off(struct file_ra_state *ra) -{ - ra->start = 0; - ra->flags = 0; - ra->size = 0; - reset_ahead_window(ra); - return; -} - -/* - * Set the initial window size, round to next power of 2 and square - * for small size, x 4 for medium, and x 2 for large - * for 128k (32 page) max ra - * 1-8 page = 32k initial, > 8 page = 128k initial - */ -static unsigned long get_init_ra_size(unsigned long size, unsigned long max) -{ - unsigned long newsize = roundup_pow_of_two(size); - - if (newsize <= max / 32) - newsize = newsize * 4; - else if (newsize <= max / 4) - newsize = newsize * 2; - else - newsize = max; - return newsize; -} - -/* - * Set the new window size, this is called only when I/O is to be submitted, - * not for each call to readahead. If a cache miss occured, reduce next I/O - * size, else increase depending on how close to max we are. - */ -static inline unsigned long get_next_ra_size(struct file_ra_state *ra) -{ - unsigned long max = get_max_readahead(ra); - unsigned long min = get_min_readahead(ra); - unsigned long cur = ra->size; - unsigned long newsize; - - if (ra->flags & RA_FLAG_MISS) { - ra->flags &= ~RA_FLAG_MISS; - newsize = max((cur - 2), min); - } else if (cur < max / 16) { - newsize = 4 * cur; - } else { - newsize = 2 * cur; - } - return min(newsize, max); -} - #define list_to_page(head) (list_entry((head)->prev, struct page, lru)) /** @@ -193,66 +125,6 @@ out: } /* - * Readahead design. - * - * The fields in struct file_ra_state represent the most-recently-executed - * readahead attempt: - * - * start: Page index at which we started the readahead - * size: Number of pages in that read - * Together, these form the "current window". - * Together, start and size represent the `readahead window'. - * prev_index: The page which the readahead algorithm most-recently inspected. - * It is mainly used to detect sequential file reading. - * If page_cache_readahead sees that it is again being called for - * a page which it just looked at, it can return immediately without - * making any state changes. - * offset: Offset in the prev_index where the last read ended - used for - * detection of sequential file reading. - * ahead_start, - * ahead_size: Together, these form the "ahead window". - * ra_pages: The externally controlled max readahead for this fd. - * - * When readahead is in the off state (size == 0), readahead is disabled. - * In this state, prev_index is used to detect the resumption of sequential I/O. - * - * The readahead code manages two windows - the "current" and the "ahead" - * windows. The intent is that while the application is walking the pages - * in the current window, I/O is underway on the ahead window. When the - * current window is fully traversed, it is replaced by the ahead window - * and the ahead window is invalidated. When this copying happens, the - * new current window's pages are probably still locked. So - * we submit a new batch of I/O immediately, creating a new ahead window. - * - * So: - * - * ----|----------------|----------------|----- - * ^start ^start+size - * ^ahead_start ^ahead_start+ahead_size - * - * ^ When this page is read, we submit I/O for the - * ahead window. - * - * A `readahead hit' occurs when a read request is made against a page which is - * the next sequential page. Ahead window calculations are done only when it - * is time to submit a new IO. The code ramps up the size agressively at first, - * but slow down as it approaches max_readhead. - * - * Any seek/ramdom IO will result in readahead being turned off. It will resume - * at the first sequential access. - * - * There is a special-case: if the first page which the application tries to - * read happens to be the first page of the file, it is assumed that a linear - * read is about to happen and the window is immediately set to the initial size - * based on I/O request size and the max_readahead. - * - * This function is to be called for every read request, rather than when - * it is time to perform readahead. It is called only once for the entire I/O - * regardless of size unless readahead is unable to start enough I/O to satisfy - * the request (I/O request > max_readahead). - */ - -/* * do_page_cache_readahead actually reads a chunk of disk. It allocates all * the pages first, then submits them all for I/O. This avoids the very bad * behaviour which would occur if page allocations are causing VM writeback. @@ -265,7 +137,8 @@ out: */ static int __do_page_cache_readahead(struct address_space *mapping, struct file *filp, - pgoff_t offset, unsigned long nr_to_read) + pgoff_t offset, unsigned long nr_to_read, + unsigned long lookahead_size) { struct inode *inode = mapping->host; struct page *page; @@ -278,7 +151,7 @@ __do_page_cache_readahead(struct address_space *mapping, struct file *filp, if (isize == 0) goto out; - end_index = ((isize - 1) >> PAGE_CACHE_SHIFT); + end_index = ((isize - 1) >> PAGE_CACHE_SHIFT); /* * Preallocate as many pages as we will need. @@ -286,7 +159,7 @@ __do_page_cache_readahead(struct address_space *mapping, struct file *filp, read_lock_irq(&mapping->tree_lock); for (page_idx = 0; page_idx < nr_to_read; page_idx++) { pgoff_t page_offset = offset + page_idx; - + if (page_offset > end_index) break; @@ -301,6 +174,8 @@ __do_page_cache_readahead(struct address_space *mapping, struct file *filp, break; page->index = page_offset; list_add(&page->lru, &page_pool); + if (page_idx == nr_to_read - lookahead_size) + SetPageReadahead(page); ret++; } read_unlock_irq(&mapping->tree_lock); @@ -337,7 +212,7 @@ int force_page_cache_readahead(struct address_space *mapping, struct file *filp, if (this_chunk > nr_to_read) this_chunk = nr_to_read; err = __do_page_cache_readahead(mapping, filp, - offset, this_chunk); + offset, this_chunk, 0); if (err < 0) { ret = err; break; @@ -350,28 +225,6 @@ int force_page_cache_readahead(struct address_space *mapping, struct file *filp, } /* - * Check how effective readahead is being. If the amount of started IO is - * less than expected then the file is partly or fully in pagecache and - * readahead isn't helping. - * - */ -static inline int check_ra_success(struct file_ra_state *ra, - unsigned long nr_to_read, unsigned long actual) -{ - if (actual == 0) { - ra->cache_hit += nr_to_read; - if (ra->cache_hit >= VM_MAX_CACHE_HIT) { - ra_off(ra); - ra->flags |= RA_FLAG_INCACHE; - return 0; - } - } else { - ra->cache_hit=0; - } - return 1; -} - -/* * This version skips the IO if the queue is read-congested, and will tell the * block layer to abandon the readahead if request allocation would block. * @@ -384,200 +237,237 @@ int do_page_cache_readahead(struct address_space *mapping, struct file *filp, if (bdi_read_congested(mapping->backing_dev_info)) return -1; - return __do_page_cache_readahead(mapping, filp, offset, nr_to_read); + return __do_page_cache_readahead(mapping, filp, offset, nr_to_read, 0); } /* - * Read 'nr_to_read' pages starting at page 'offset'. If the flag 'block' - * is set wait till the read completes. Otherwise attempt to read without - * blocking. - * Returns 1 meaning 'success' if read is successful without switching off - * readahead mode. Otherwise return failure. + * Given a desired number of PAGE_CACHE_SIZE readahead pages, return a + * sensible upper limit. */ -static int -blockable_page_cache_readahead(struct address_space *mapping, struct file *filp, - pgoff_t offset, unsigned long nr_to_read, - struct file_ra_state *ra, int block) +unsigned long max_sane_readahead(unsigned long nr) +{ + return min(nr, (node_page_state(numa_node_id(), NR_INACTIVE) + + node_page_state(numa_node_id(), NR_FREE_PAGES)) / 2); +} + +/* + * Submit IO for the read-ahead request in file_ra_state. + */ +static unsigned long ra_submit(struct file_ra_state *ra, + struct address_space *mapping, struct file *filp) { int actual; - if (!block && bdi_read_congested(mapping->backing_dev_info)) - return 0; + actual = __do_page_cache_readahead(mapping, filp, + ra->start, ra->size, ra->async_size); + + return actual; +} - actual = __do_page_cache_readahead(mapping, filp, offset, nr_to_read); +/* + * Set the initial window size, round to next power of 2 and square + * for small size, x 4 for medium, and x 2 for large + * for 128k (32 page) max ra + * 1-8 page = 32k initial, > 8 page = 128k initial + */ +static unsigned long get_init_ra_size(unsigned long size, unsigned long max) +{ + unsigned long newsize = roundup_pow_of_two(size); - return check_ra_success(ra, nr_to_read, actual); + if (newsize <= max / 32) + newsize = newsize * 4; + else if (newsize <= max / 4) + newsize = newsize * 2; + else + newsize = max; + + return newsize; } -static int make_ahead_window(struct address_space *mapping, struct file *filp, - struct file_ra_state *ra, int force) +/* + * Get the previous window size, ramp it up, and + * return it as the new window size. + */ +static unsigned long get_next_ra_size(struct file_ra_state *ra, + unsigned long max) { - int block, ret; - - ra->ahead_size = get_next_ra_size(ra); - ra->ahead_start = ra->start + ra->size; - - block = force || (ra->prev_index >= ra->ahead_start); - ret = blockable_page_cache_readahead(mapping, filp, - ra->ahead_start, ra->ahead_size, ra, block); - - if (!ret && !force) { - /* A read failure in blocking mode, implies pages are - * all cached. So we can safely assume we have taken - * care of all the pages requested in this call. - * A read failure in non-blocking mode, implies we are - * reading more pages than requested in this call. So - * we safely assume we have taken care of all the pages - * requested in this call. - * - * Just reset the ahead window in case we failed due to - * congestion. The ahead window will any way be closed - * in case we failed due to excessive page cache hits. - */ - reset_ahead_window(ra); - } + unsigned long cur = ra->size; + unsigned long newsize; - return ret; + if (cur < max / 16) + newsize = 4 * cur; + else + newsize = 2 * cur; + + return min(newsize, max); } -/** - * page_cache_readahead - generic adaptive readahead - * @mapping: address_space which holds the pagecache and I/O vectors - * @ra: file_ra_state which holds the readahead state - * @filp: passed on to ->readpage() and ->readpages() - * @offset: start offset into @mapping, in PAGE_CACHE_SIZE units - * @req_size: hint: total size of the read which the caller is performing in - * PAGE_CACHE_SIZE units +/* + * On-demand readahead design. + * + * The fields in struct file_ra_state represent the most-recently-executed + * readahead attempt: + * + * |<----- async_size ---------| + * |------------------- size -------------------->| + * |==================#===========================| + * ^start ^page marked with PG_readahead * - * page_cache_readahead() is the main function. If performs the adaptive - * readahead window size management and submits the readahead I/O. + * To overlap application thinking time and disk I/O time, we do + * `readahead pipelining': Do not wait until the application consumed all + * readahead pages and stalled on the missing page at readahead_index; + * Instead, submit an asynchronous readahead I/O as soon as there are + * only async_size pages left in the readahead window. Normally async_size + * will be equal to size, for maximum pipelining. * - * Note that @filp is purely used for passing on to the ->readpage[s]() - * handler: it may refer to a different file from @mapping (so we may not use - * @filp->f_mapping or @filp->f_path.dentry->d_inode here). - * Also, @ra may not be equal to &@filp->f_ra. + * In interleaved sequential reads, concurrent streams on the same fd can + * be invalidating each other's readahead state. So we flag the new readahead + * page at (start+size-async_size) with PG_readahead, and use it as readahead + * indicator. The flag won't be set on already cached pages, to avoid the + * readahead-for-nothing fuss, saving pointless page cache lookups. + * + * prev_index tracks the last visited page in the _previous_ read request. + * It should be maintained by the caller, and will be used for detecting + * small random reads. Note that the readahead algorithm checks loosely + * for sequential patterns. Hence interleaved reads might be served as + * sequential ones. + * + * There is a special-case: if the first page which the application tries to + * read happens to be the first page of the file, it is assumed that a linear + * read is about to happen and the window is immediately set to the initial size + * based on I/O request size and the max_readahead. * + * The code ramps up the readahead size aggressively at first, but slow down as + * it approaches max_readhead. + */ + +/* + * A minimal readahead algorithm for trivial sequential/random reads. */ -unsigned long -page_cache_readahead(struct address_space *mapping, struct file_ra_state *ra, - struct file *filp, pgoff_t offset, unsigned long req_size) +static unsigned long +ondemand_readahead(struct address_space *mapping, + struct file_ra_state *ra, struct file *filp, + bool hit_readahead_marker, pgoff_t offset, + unsigned long req_size) { - unsigned long max, newsize; + unsigned long max; /* max readahead pages */ int sequential; - /* - * We avoid doing extra work and bogusly perturbing the readahead - * window expansion logic. - */ - if (offset == ra->prev_index && --req_size) - ++offset; - - /* Note that prev_index == -1 if it is a first read */ - sequential = (offset == ra->prev_index + 1); - ra->prev_index = offset; - ra->prev_offset = 0; - - max = get_max_readahead(ra); - newsize = min(req_size, max); - - /* No readahead or sub-page sized read or file already in cache */ - if (newsize == 0 || (ra->flags & RA_FLAG_INCACHE)) - goto out; - - ra->prev_index += newsize - 1; + max = ra->ra_pages; + sequential = (offset - ra->prev_index <= 1UL) || (req_size > max); /* - * Special case - first read at start of file. We'll assume it's - * a whole-file read and grow the window fast. Or detect first - * sequential access + * It's the expected callback offset, assume sequential access. + * Ramp up sizes, and push forward the readahead window. */ - if (sequential && ra->size == 0) { - ra->size = get_init_ra_size(newsize, max); - ra->start = offset; - if (!blockable_page_cache_readahead(mapping, filp, offset, - ra->size, ra, 1)) - goto out; - - /* - * If the request size is larger than our max readahead, we - * at least want to be sure that we get 2 IOs in flight and - * we know that we will definitly need the new I/O. - * once we do this, subsequent calls should be able to overlap - * IOs,* thus preventing stalls. so issue the ahead window - * immediately. - */ - if (req_size >= max) - make_ahead_window(mapping, filp, ra, 1); - - goto out; + if (offset && (offset == (ra->start + ra->size - ra->async_size) || + offset == (ra->start + ra->size))) { + ra->start += ra->size; + ra->size = get_next_ra_size(ra, max); + ra->async_size = ra->size; + goto readit; } /* - * Now handle the random case: - * partial page reads and first access were handled above, - * so this must be the next page otherwise it is random + * Standalone, small read. + * Read as is, and do not pollute the readahead state. */ - if (!sequential) { - ra_off(ra); - blockable_page_cache_readahead(mapping, filp, offset, - newsize, ra, 1); - goto out; + if (!hit_readahead_marker && !sequential) { + return __do_page_cache_readahead(mapping, filp, + offset, req_size, 0); } /* - * If we get here we are doing sequential IO and this was not the first - * occurence (ie we have an existing window) + * It may be one of + * - first read on start of file + * - sequential cache miss + * - oversize random read + * Start readahead for it. */ - if (ra->ahead_start == 0) { /* no ahead window yet */ - if (!make_ahead_window(mapping, filp, ra, 0)) - goto recheck; - } + ra->start = offset; + ra->size = get_init_ra_size(req_size, max); + ra->async_size = ra->size > req_size ? ra->size - req_size : ra->size; /* - * Already have an ahead window, check if we crossed into it. - * If so, shift windows and issue a new ahead window. - * Only return the #pages that are in the current window, so that - * we get called back on the first page of the ahead window which - * will allow us to submit more IO. + * Hit on a marked page without valid readahead state. + * E.g. interleaved reads. + * Not knowing its readahead pos/size, bet on the minimal possible one. */ - if (ra->prev_index >= ra->ahead_start) { - ra->start = ra->ahead_start; - ra->size = ra->ahead_size; - make_ahead_window(mapping, filp, ra, 0); -recheck: - /* prev_index shouldn't overrun the ahead window */ - ra->prev_index = min(ra->prev_index, - ra->ahead_start + ra->ahead_size - 1); + if (hit_readahead_marker) { + ra->start++; + ra->size = get_next_ra_size(ra, max); } -out: - return ra->prev_index + 1; +readit: + return ra_submit(ra, mapping, filp); } -EXPORT_SYMBOL_GPL(page_cache_readahead); -/* - * handle_ra_miss() is called when it is known that a page which should have - * been present in the pagecache (we just did some readahead there) was in fact - * not found. This will happen if it was evicted by the VM (readahead - * thrashing) +/** + * page_cache_sync_readahead - generic file readahead + * @mapping: address_space which holds the pagecache and I/O vectors + * @ra: file_ra_state which holds the readahead state + * @filp: passed on to ->readpage() and ->readpages() + * @offset: start offset into @mapping, in pagecache page-sized units + * @req_size: hint: total size of the read which the caller is performing in + * pagecache pages * - * Turn on the cache miss flag in the RA struct, this will cause the RA code - * to reduce the RA size on the next read. + * page_cache_sync_readahead() should be called when a cache miss happened: + * it will submit the read. The readahead logic may decide to piggyback more + * pages onto the read request if access patterns suggest it will improve + * performance. */ -void handle_ra_miss(struct address_space *mapping, - struct file_ra_state *ra, pgoff_t offset) +void page_cache_sync_readahead(struct address_space *mapping, + struct file_ra_state *ra, struct file *filp, + pgoff_t offset, unsigned long req_size) { - ra->flags |= RA_FLAG_MISS; - ra->flags &= ~RA_FLAG_INCACHE; - ra->cache_hit = 0; + /* no read-ahead */ + if (!ra->ra_pages) + return; + + /* do read-ahead */ + ondemand_readahead(mapping, ra, filp, false, offset, req_size); } +EXPORT_SYMBOL_GPL(page_cache_sync_readahead); -/* - * Given a desired number of PAGE_CACHE_SIZE readahead pages, return a - * sensible upper limit. - */ -unsigned long max_sane_readahead(unsigned long nr) +/** + * page_cache_async_readahead - file readahead for marked pages + * @mapping: address_space which holds the pagecache and I/O vectors + * @ra: file_ra_state which holds the readahead state + * @filp: passed on to ->readpage() and ->readpages() + * @page: the page at @offset which has the PG_readahead flag set + * @offset: start offset into @mapping, in pagecache page-sized units + * @req_size: hint: total size of the read which the caller is performing in + * pagecache pages + * + * page_cache_async_ondemand() should be called when a page is used which + * has the PG_readahead flag: this is a marker to suggest that the application + * has used up enough of the readahead window that we should start pulling in + * more pages. */ +void +page_cache_async_readahead(struct address_space *mapping, + struct file_ra_state *ra, struct file *filp, + struct page *page, pgoff_t offset, + unsigned long req_size) { - return min(nr, (node_page_state(numa_node_id(), NR_INACTIVE) - + node_page_state(numa_node_id(), NR_FREE_PAGES)) / 2); + /* no read-ahead */ + if (!ra->ra_pages) + return; + + /* + * Same bit is used for PG_readahead and PG_reclaim. + */ + if (PageWriteback(page)) + return; + + ClearPageReadahead(page); + + /* + * Defer asynchronous read-ahead on IO congestion. + */ + if (bdi_read_congested(mapping->backing_dev_info)) + return; + + /* do read-ahead */ + ondemand_readahead(mapping, ra, filp, true, offset, req_size); } +EXPORT_SYMBOL_GPL(page_cache_async_readahead); diff --git a/mm/rmap.c b/mm/rmap.c index 61e492597a0b..fede5c7910be 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -621,8 +621,10 @@ void page_remove_rmap(struct page *page, struct vm_area_struct *vma) printk (KERN_EMERG " page->count = %x\n", page_count(page)); printk (KERN_EMERG " page->mapping = %p\n", page->mapping); print_symbol (KERN_EMERG " vma->vm_ops = %s\n", (unsigned long)vma->vm_ops); - if (vma->vm_ops) + if (vma->vm_ops) { print_symbol (KERN_EMERG " vma->vm_ops->nopage = %s\n", (unsigned long)vma->vm_ops->nopage); + print_symbol (KERN_EMERG " vma->vm_ops->fault = %s\n", (unsigned long)vma->vm_ops->fault); + } if (vma->vm_file && vma->vm_file->f_op) print_symbol (KERN_EMERG " vma->vm_file->f_op->mmap = %s\n", (unsigned long)vma->vm_file->f_op->mmap); BUG(); diff --git a/mm/shmem.c b/mm/shmem.c index 0493e4d0bcaa..ad155c7745dc 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -27,6 +27,7 @@ #include <linux/init.h> #include <linux/fs.h> #include <linux/xattr.h> +#include <linux/exportfs.h> #include <linux/generic_acl.h> #include <linux/mm.h> #include <linux/mman.h> @@ -82,6 +83,7 @@ enum sgp_type { SGP_READ, /* don't exceed i_size, don't allocate page */ SGP_CACHE, /* don't exceed i_size, may allocate page */ SGP_WRITE, /* may exceed i_size, may allocate page */ + SGP_FAULT, /* same as SGP_CACHE, return with page locked */ }; static int shmem_getpage(struct inode *inode, unsigned long idx, @@ -93,8 +95,11 @@ static inline struct page *shmem_dir_alloc(gfp_t gfp_mask) * The above definition of ENTRIES_PER_PAGE, and the use of * BLOCKS_PER_PAGE on indirect pages, assume PAGE_CACHE_SIZE: * might be reconsidered if it ever diverges from PAGE_SIZE. + * + * __GFP_MOVABLE is masked out as swap vectors cannot move */ - return alloc_pages(gfp_mask, PAGE_CACHE_SHIFT-PAGE_SHIFT); + return alloc_pages((gfp_mask & ~__GFP_MOVABLE) | __GFP_ZERO, + PAGE_CACHE_SHIFT-PAGE_SHIFT); } static inline void shmem_dir_free(struct page *page) @@ -372,7 +377,7 @@ static swp_entry_t *shmem_swp_alloc(struct shmem_inode_info *info, unsigned long } spin_unlock(&info->lock); - page = shmem_dir_alloc(mapping_gfp_mask(inode->i_mapping) | __GFP_ZERO); + page = shmem_dir_alloc(mapping_gfp_mask(inode->i_mapping)); if (page) set_page_private(page, 0); spin_lock(&info->lock); @@ -1096,6 +1101,10 @@ static int shmem_getpage(struct inode *inode, unsigned long idx, if (idx >= SHMEM_MAX_INDEX) return -EFBIG; + + if (type) + *type = 0; + /* * Normally, filepage is NULL on entry, and either found * uptodate immediately, or allocated and zeroed, or read @@ -1129,9 +1138,9 @@ repeat: if (!swappage) { shmem_swp_unmap(entry); /* here we actually do the io */ - if (type && *type == VM_FAULT_MINOR) { + if (type && !(*type & VM_FAULT_MAJOR)) { __count_vm_event(PGMAJFAULT); - *type = VM_FAULT_MAJOR; + *type |= VM_FAULT_MAJOR; } spin_unlock(&info->lock); swappage = shmem_swapin(info, swap, idx); @@ -1285,8 +1294,10 @@ repeat: } done: if (*pagep != filepage) { - unlock_page(filepage); *pagep = filepage; + if (sgp != SGP_FAULT) + unlock_page(filepage); + } return 0; @@ -1298,72 +1309,21 @@ failed: return error; } -static struct page *shmem_nopage(struct vm_area_struct *vma, - unsigned long address, int *type) +static int shmem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct inode *inode = vma->vm_file->f_path.dentry->d_inode; - struct page *page = NULL; - unsigned long idx; int error; + int ret; - idx = (address - vma->vm_start) >> PAGE_SHIFT; - idx += vma->vm_pgoff; - idx >>= PAGE_CACHE_SHIFT - PAGE_SHIFT; - if (((loff_t) idx << PAGE_CACHE_SHIFT) >= i_size_read(inode)) - return NOPAGE_SIGBUS; + if (((loff_t)vmf->pgoff << PAGE_CACHE_SHIFT) >= i_size_read(inode)) + return VM_FAULT_SIGBUS; - error = shmem_getpage(inode, idx, &page, SGP_CACHE, type); + error = shmem_getpage(inode, vmf->pgoff, &vmf->page, SGP_FAULT, &ret); if (error) - return (error == -ENOMEM)? NOPAGE_OOM: NOPAGE_SIGBUS; - - mark_page_accessed(page); - return page; -} - -static int shmem_populate(struct vm_area_struct *vma, - unsigned long addr, unsigned long len, - pgprot_t prot, unsigned long pgoff, int nonblock) -{ - struct inode *inode = vma->vm_file->f_path.dentry->d_inode; - struct mm_struct *mm = vma->vm_mm; - enum sgp_type sgp = nonblock? SGP_QUICK: SGP_CACHE; - unsigned long size; + return ((error == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS); - size = (i_size_read(inode) + PAGE_SIZE - 1) >> PAGE_SHIFT; - if (pgoff >= size || pgoff + (len >> PAGE_SHIFT) > size) - return -EINVAL; - - while ((long) len > 0) { - struct page *page = NULL; - int err; - /* - * Will need changing if PAGE_CACHE_SIZE != PAGE_SIZE - */ - err = shmem_getpage(inode, pgoff, &page, sgp, NULL); - if (err) - return err; - /* Page may still be null, but only if nonblock was set. */ - if (page) { - mark_page_accessed(page); - err = install_page(mm, vma, addr, page, prot); - if (err) { - page_cache_release(page); - return err; - } - } else if (vma->vm_flags & VM_NONLINEAR) { - /* No page was found just because we can't read it in - * now (being here implies nonblock != 0), but the page - * may exist, so set the PTE to fault it in later. */ - err = install_file_pte(mm, vma, addr, pgoff, prot); - if (err) - return err; - } - - len -= PAGE_SIZE; - addr += PAGE_SIZE; - pgoff++; - } - return 0; + mark_page_accessed(vmf->page); + return ret | VM_FAULT_LOCKED; } #ifdef CONFIG_NUMA @@ -1410,6 +1370,7 @@ static int shmem_mmap(struct file *file, struct vm_area_struct *vma) { file_accessed(file); vma->vm_ops = &shmem_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; return 0; } @@ -2455,8 +2416,7 @@ static const struct super_operations shmem_ops = { }; static struct vm_operations_struct shmem_vm_ops = { - .nopage = shmem_nopage, - .populate = shmem_populate, + .fault = shmem_fault, #ifdef CONFIG_NUMA .set_policy = shmem_set_policy, .get_policy = shmem_get_policy, diff --git a/mm/slab.c b/mm/slab.c index a453383333fc..88bc6336ce3d 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -775,6 +775,9 @@ static inline struct kmem_cache *__find_general_cachep(size_t size, */ BUG_ON(malloc_sizes[INDEX_AC].cs_cachep == NULL); #endif + if (!size) + return ZERO_SIZE_PTR; + while (size > csizep->cs_size) csizep++; @@ -1160,7 +1163,7 @@ static int __cpuinit cpuup_callback(struct notifier_block *nfb, struct kmem_cache *cachep; struct kmem_list3 *l3 = NULL; int node = cpu_to_node(cpu); - int memsize = sizeof(struct kmem_list3); + const int memsize = sizeof(struct kmem_list3); switch (action) { case CPU_LOCK_ACQUIRE: @@ -2351,7 +2354,7 @@ kmem_cache_create (const char *name, size_t size, size_t align, * this should not happen at all. * But leave a BUG_ON for some lucky dude. */ - BUG_ON(!cachep->slabp_cache); + BUG_ON(ZERO_OR_NULL_PTR(cachep->slabp_cache)); } cachep->ctor = ctor; cachep->name = name; @@ -2743,7 +2746,7 @@ static int cache_grow(struct kmem_cache *cachep, * Be lazy and only check for valid flags here, keeping it out of the * critical path in kmem_cache_alloc(). */ - BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK)); + BUG_ON(flags & ~(GFP_DMA | __GFP_ZERO | GFP_LEVEL_MASK)); local_flags = (flags & GFP_LEVEL_MASK); /* Take the l3 list lock to change the colour_next on this node */ @@ -3389,6 +3392,9 @@ __cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid, local_irq_restore(save_flags); ptr = cache_alloc_debugcheck_after(cachep, flags, ptr, caller); + if (unlikely((flags & __GFP_ZERO) && ptr)) + memset(ptr, 0, obj_size(cachep)); + return ptr; } @@ -3440,6 +3446,9 @@ __cache_alloc(struct kmem_cache *cachep, gfp_t flags, void *caller) objp = cache_alloc_debugcheck_after(cachep, flags, objp, caller); prefetchw(objp); + if (unlikely((flags & __GFP_ZERO) && objp)) + memset(objp, 0, obj_size(cachep)); + return objp; } @@ -3581,23 +3590,6 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags) EXPORT_SYMBOL(kmem_cache_alloc); /** - * kmem_cache_zalloc - Allocate an object. The memory is set to zero. - * @cache: The cache to allocate from. - * @flags: See kmalloc(). - * - * Allocate an object from this cache and set the allocated memory to zero. - * The flags are only relevant if the cache has no available objects. - */ -void *kmem_cache_zalloc(struct kmem_cache *cache, gfp_t flags) -{ - void *ret = __cache_alloc(cache, flags, __builtin_return_address(0)); - if (ret) - memset(ret, 0, obj_size(cache)); - return ret; -} -EXPORT_SYMBOL(kmem_cache_zalloc); - -/** * kmem_ptr_validate - check if an untrusted pointer might * be a slab entry. * @cachep: the cache we're checking against @@ -3653,8 +3645,8 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, void *caller) struct kmem_cache *cachep; cachep = kmem_find_general_cachep(size, flags); - if (unlikely(cachep == NULL)) - return NULL; + if (unlikely(ZERO_OR_NULL_PTR(cachep))) + return cachep; return kmem_cache_alloc_node(cachep, flags, node); } @@ -3726,52 +3718,6 @@ EXPORT_SYMBOL(__kmalloc); #endif /** - * krealloc - reallocate memory. The contents will remain unchanged. - * @p: object to reallocate memory for. - * @new_size: how many bytes of memory are required. - * @flags: the type of memory to allocate. - * - * The contents of the object pointed to are preserved up to the - * lesser of the new and old sizes. If @p is %NULL, krealloc() - * behaves exactly like kmalloc(). If @size is 0 and @p is not a - * %NULL pointer, the object pointed to is freed. - */ -void *krealloc(const void *p, size_t new_size, gfp_t flags) -{ - struct kmem_cache *cache, *new_cache; - void *ret; - - if (unlikely(!p)) - return kmalloc_track_caller(new_size, flags); - - if (unlikely(!new_size)) { - kfree(p); - return NULL; - } - - cache = virt_to_cache(p); - new_cache = __find_general_cachep(new_size, flags); - - /* - * If new size fits in the current cache, bail out. - */ - if (likely(cache == new_cache)) - return (void *)p; - - /* - * We are on the slow-path here so do not use __cache_alloc - * because it bloats kernel text. - */ - ret = kmalloc_track_caller(new_size, flags); - if (ret) { - memcpy(ret, p, min(new_size, ksize(p))); - kfree(p); - } - return ret; -} -EXPORT_SYMBOL(krealloc); - -/** * kmem_cache_free - Deallocate an object * @cachep: The cache the allocation was from. * @objp: The previously allocated object. @@ -3806,7 +3752,7 @@ void kfree(const void *objp) struct kmem_cache *c; unsigned long flags; - if (unlikely(!objp)) + if (unlikely(ZERO_OR_NULL_PTR(objp))) return; local_irq_save(flags); kfree_debugcheck(objp); @@ -4398,7 +4344,7 @@ static void show_symbol(struct seq_file *m, unsigned long address) { #ifdef CONFIG_KALLSYMS unsigned long offset, size; - char modname[MODULE_NAME_LEN + 1], name[KSYM_NAME_LEN + 1]; + char modname[MODULE_NAME_LEN], name[KSYM_NAME_LEN]; if (lookup_symbol_attrs(address, &size, &offset, modname, name) == 0) { seq_printf(m, "%s+%#lx/%#lx", name, offset, size); @@ -4493,7 +4439,7 @@ const struct seq_operations slabstats_op = { */ size_t ksize(const void *objp) { - if (unlikely(objp == NULL)) + if (unlikely(ZERO_OR_NULL_PTR(objp))) return 0; return obj_size(virt_to_cache(objp)); diff --git a/mm/slob.c b/mm/slob.c index b4899079d8b0..c89ef116d7aa 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -334,6 +334,8 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node) BUG_ON(!b); spin_unlock_irqrestore(&slob_lock, flags); } + if (unlikely((gfp & __GFP_ZERO) && b)) + memset(b, 0, size); return b; } @@ -347,7 +349,7 @@ static void slob_free(void *block, int size) slobidx_t units; unsigned long flags; - if (!block) + if (ZERO_OR_NULL_PTR(block)) return; BUG_ON(!size); @@ -424,10 +426,13 @@ out: void *__kmalloc_node(size_t size, gfp_t gfp, int node) { + unsigned int *m; int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); if (size < PAGE_SIZE - align) { - unsigned int *m; + if (!size) + return ZERO_SIZE_PTR; + m = slob_alloc(size + align, gfp, align, node); if (m) *m = size; @@ -446,44 +451,11 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node) } EXPORT_SYMBOL(__kmalloc_node); -/** - * krealloc - reallocate memory. The contents will remain unchanged. - * - * @p: object to reallocate memory for. - * @new_size: how many bytes of memory are required. - * @flags: the type of memory to allocate. - * - * The contents of the object pointed to are preserved up to the - * lesser of the new and old sizes. If @p is %NULL, krealloc() - * behaves exactly like kmalloc(). If @size is 0 and @p is not a - * %NULL pointer, the object pointed to is freed. - */ -void *krealloc(const void *p, size_t new_size, gfp_t flags) -{ - void *ret; - - if (unlikely(!p)) - return kmalloc_track_caller(new_size, flags); - - if (unlikely(!new_size)) { - kfree(p); - return NULL; - } - - ret = kmalloc_track_caller(new_size, flags); - if (ret) { - memcpy(ret, p, min(new_size, ksize(p))); - kfree(p); - } - return ret; -} -EXPORT_SYMBOL(krealloc); - void kfree(const void *block) { struct slob_page *sp; - if (!block) + if (ZERO_OR_NULL_PTR(block)) return; sp = (struct slob_page *)virt_to_page(block); @@ -501,7 +473,7 @@ size_t ksize(const void *block) { struct slob_page *sp; - if (!block) + if (ZERO_OR_NULL_PTR(block)) return 0; sp = (struct slob_page *)virt_to_page(block); @@ -571,16 +543,6 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node) } EXPORT_SYMBOL(kmem_cache_alloc_node); -void *kmem_cache_zalloc(struct kmem_cache *c, gfp_t flags) -{ - void *ret = kmem_cache_alloc(c, flags); - if (ret) - memset(ret, 0, c->size); - - return ret; -} -EXPORT_SYMBOL(kmem_cache_zalloc); - static void __kmem_cache_free(void *b, int size) { if (size < PAGE_SIZE) diff --git a/mm/slub.c b/mm/slub.c index 6aea48942c29..52a4f44be394 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -205,6 +205,11 @@ static inline void ClearSlabDebug(struct page *page) #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long) #endif +/* + * The page->inuse field is 16 bit thus we have this limitation + */ +#define MAX_OBJECTS_PER_SLAB 65535 + /* Internal SLUB flags */ #define __OBJECT_POISON 0x80000000 /* Poison object */ @@ -228,7 +233,7 @@ static enum { /* A list of all slab caches on the system */ static DECLARE_RWSEM(slub_lock); -LIST_HEAD(slab_caches); +static LIST_HEAD(slab_caches); /* * Tracking user of a slab. @@ -247,9 +252,10 @@ static int sysfs_slab_add(struct kmem_cache *); static int sysfs_slab_alias(struct kmem_cache *, const char *); static void sysfs_slab_remove(struct kmem_cache *); #else -static int sysfs_slab_add(struct kmem_cache *s) { return 0; } -static int sysfs_slab_alias(struct kmem_cache *s, const char *p) { return 0; } -static void sysfs_slab_remove(struct kmem_cache *s) {} +static inline int sysfs_slab_add(struct kmem_cache *s) { return 0; } +static inline int sysfs_slab_alias(struct kmem_cache *s, const char *p) + { return 0; } +static inline void sysfs_slab_remove(struct kmem_cache *s) {} #endif /******************************************************************** @@ -344,7 +350,7 @@ static void print_section(char *text, u8 *addr, unsigned int length) for (i = 0; i < length; i++) { if (newline) { - printk(KERN_ERR "%10s 0x%p: ", text, addr + i); + printk(KERN_ERR "%8s 0x%p: ", text, addr + i); newline = 0; } printk(" %02x", addr[i]); @@ -401,10 +407,11 @@ static void set_track(struct kmem_cache *s, void *object, static void init_tracking(struct kmem_cache *s, void *object) { - if (s->flags & SLAB_STORE_USER) { - set_track(s, object, TRACK_FREE, NULL); - set_track(s, object, TRACK_ALLOC, NULL); - } + if (!(s->flags & SLAB_STORE_USER)) + return; + + set_track(s, object, TRACK_FREE, NULL); + set_track(s, object, TRACK_ALLOC, NULL); } static void print_track(const char *s, struct track *t) @@ -412,65 +419,106 @@ static void print_track(const char *s, struct track *t) if (!t->addr) return; - printk(KERN_ERR "%s: ", s); + printk(KERN_ERR "INFO: %s in ", s); __print_symbol("%s", (unsigned long)t->addr); - printk(" jiffies_ago=%lu cpu=%u pid=%d\n", jiffies - t->when, t->cpu, t->pid); + printk(" age=%lu cpu=%u pid=%d\n", jiffies - t->when, t->cpu, t->pid); +} + +static void print_tracking(struct kmem_cache *s, void *object) +{ + if (!(s->flags & SLAB_STORE_USER)) + return; + + print_track("Allocated", get_track(s, object, TRACK_ALLOC)); + print_track("Freed", get_track(s, object, TRACK_FREE)); +} + +static void print_page_info(struct page *page) +{ + printk(KERN_ERR "INFO: Slab 0x%p used=%u fp=0x%p flags=0x%04lx\n", + page, page->inuse, page->freelist, page->flags); + +} + +static void slab_bug(struct kmem_cache *s, char *fmt, ...) +{ + va_list args; + char buf[100]; + + va_start(args, fmt); + vsnprintf(buf, sizeof(buf), fmt, args); + va_end(args); + printk(KERN_ERR "========================================" + "=====================================\n"); + printk(KERN_ERR "BUG %s: %s\n", s->name, buf); + printk(KERN_ERR "----------------------------------------" + "-------------------------------------\n\n"); } -static void print_trailer(struct kmem_cache *s, u8 *p) +static void slab_fix(struct kmem_cache *s, char *fmt, ...) +{ + va_list args; + char buf[100]; + + va_start(args, fmt); + vsnprintf(buf, sizeof(buf), fmt, args); + va_end(args); + printk(KERN_ERR "FIX %s: %s\n", s->name, buf); +} + +static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p) { unsigned int off; /* Offset of last byte */ + u8 *addr = page_address(page); + + print_tracking(s, p); + + print_page_info(page); + + printk(KERN_ERR "INFO: Object 0x%p @offset=%tu fp=0x%p\n\n", + p, p - addr, get_freepointer(s, p)); + + if (p > addr + 16) + print_section("Bytes b4", p - 16, 16); + + print_section("Object", p, min(s->objsize, 128)); if (s->flags & SLAB_RED_ZONE) print_section("Redzone", p + s->objsize, s->inuse - s->objsize); - printk(KERN_ERR "FreePointer 0x%p -> 0x%p\n", - p + s->offset, - get_freepointer(s, p)); - if (s->offset) off = s->offset + sizeof(void *); else off = s->inuse; - if (s->flags & SLAB_STORE_USER) { - print_track("Last alloc", get_track(s, p, TRACK_ALLOC)); - print_track("Last free ", get_track(s, p, TRACK_FREE)); + if (s->flags & SLAB_STORE_USER) off += 2 * sizeof(struct track); - } if (off != s->size) /* Beginning of the filler is the free pointer */ - print_section("Filler", p + off, s->size - off); + print_section("Padding", p + off, s->size - off); + + dump_stack(); } static void object_err(struct kmem_cache *s, struct page *page, u8 *object, char *reason) { - u8 *addr = page_address(page); - - printk(KERN_ERR "*** SLUB %s: %s@0x%p slab 0x%p\n", - s->name, reason, object, page); - printk(KERN_ERR " offset=%tu flags=0x%04lx inuse=%u freelist=0x%p\n", - object - addr, page->flags, page->inuse, page->freelist); - if (object > addr + 16) - print_section("Bytes b4", object - 16, 16); - print_section("Object", object, min(s->objsize, 128)); - print_trailer(s, object); - dump_stack(); + slab_bug(s, reason); + print_trailer(s, page, object); } -static void slab_err(struct kmem_cache *s, struct page *page, char *reason, ...) +static void slab_err(struct kmem_cache *s, struct page *page, char *fmt, ...) { va_list args; char buf[100]; - va_start(args, reason); - vsnprintf(buf, sizeof(buf), reason, args); + va_start(args, fmt); + vsnprintf(buf, sizeof(buf), fmt, args); va_end(args); - printk(KERN_ERR "*** SLUB %s: %s in slab @0x%p\n", s->name, buf, - page); + slab_bug(s, fmt); + print_page_info(page); dump_stack(); } @@ -489,15 +537,46 @@ static void init_object(struct kmem_cache *s, void *object, int active) s->inuse - s->objsize); } -static int check_bytes(u8 *start, unsigned int value, unsigned int bytes) +static u8 *check_bytes(u8 *start, unsigned int value, unsigned int bytes) { while (bytes) { if (*start != (u8)value) - return 0; + return start; start++; bytes--; } - return 1; + return NULL; +} + +static void restore_bytes(struct kmem_cache *s, char *message, u8 data, + void *from, void *to) +{ + slab_fix(s, "Restoring 0x%p-0x%p=0x%x\n", from, to - 1, data); + memset(from, data, to - from); +} + +static int check_bytes_and_report(struct kmem_cache *s, struct page *page, + u8 *object, char *what, + u8* start, unsigned int value, unsigned int bytes) +{ + u8 *fault; + u8 *end; + + fault = check_bytes(start, value, bytes); + if (!fault) + return 1; + + end = start + bytes; + while (end > fault && end[-1] == value) + end--; + + slab_bug(s, "%s overwritten", what); + printk(KERN_ERR "INFO: 0x%p-0x%p. First byte 0x%x instead of 0x%x\n", + fault, end - 1, fault[0], value); + print_trailer(s, page, object); + + restore_bytes(s, what, value, fault, end); + return 0; } /* @@ -538,14 +617,6 @@ static int check_bytes(u8 *start, unsigned int value, unsigned int bytes) * may be used with merged slabcaches. */ -static void restore_bytes(struct kmem_cache *s, char *message, u8 data, - void *from, void *to) -{ - printk(KERN_ERR "@@@ SLUB %s: Restoring %s (0x%x) from 0x%p-0x%p\n", - s->name, message, data, from, to - 1); - memset(from, data, to - from); -} - static int check_pad_bytes(struct kmem_cache *s, struct page *page, u8 *p) { unsigned long off = s->inuse; /* The end of info */ @@ -561,39 +632,39 @@ static int check_pad_bytes(struct kmem_cache *s, struct page *page, u8 *p) if (s->size == off) return 1; - if (check_bytes(p + off, POISON_INUSE, s->size - off)) - return 1; - - object_err(s, page, p, "Object padding check fails"); - - /* - * Restore padding - */ - restore_bytes(s, "object padding", POISON_INUSE, p + off, p + s->size); - return 0; + return check_bytes_and_report(s, page, p, "Object padding", + p + off, POISON_INUSE, s->size - off); } static int slab_pad_check(struct kmem_cache *s, struct page *page) { - u8 *p; - int length, remainder; + u8 *start; + u8 *fault; + u8 *end; + int length; + int remainder; if (!(s->flags & SLAB_POISON)) return 1; - p = page_address(page); + start = page_address(page); + end = start + (PAGE_SIZE << s->order); length = s->objects * s->size; - remainder = (PAGE_SIZE << s->order) - length; + remainder = end - (start + length); if (!remainder) return 1; - if (!check_bytes(p + length, POISON_INUSE, remainder)) { - slab_err(s, page, "Padding check failed"); - restore_bytes(s, "slab padding", POISON_INUSE, p + length, - p + length + remainder); - return 0; - } - return 1; + fault = check_bytes(start + length, POISON_INUSE, remainder); + if (!fault) + return 1; + while (end > fault && end[-1] == POISON_INUSE) + end--; + + slab_err(s, page, "Padding overwritten. 0x%p-0x%p", fault, end - 1); + print_section("Padding", start, length); + + restore_bytes(s, "slab padding", POISON_INUSE, start, end); + return 0; } static int check_object(struct kmem_cache *s, struct page *page, @@ -606,41 +677,22 @@ static int check_object(struct kmem_cache *s, struct page *page, unsigned int red = active ? SLUB_RED_ACTIVE : SLUB_RED_INACTIVE; - if (!check_bytes(endobject, red, s->inuse - s->objsize)) { - object_err(s, page, object, - active ? "Redzone Active" : "Redzone Inactive"); - restore_bytes(s, "redzone", red, - endobject, object + s->inuse); + if (!check_bytes_and_report(s, page, object, "Redzone", + endobject, red, s->inuse - s->objsize)) return 0; - } } else { - if ((s->flags & SLAB_POISON) && s->objsize < s->inuse && - !check_bytes(endobject, POISON_INUSE, - s->inuse - s->objsize)) { - object_err(s, page, p, "Alignment padding check fails"); - /* - * Fix it so that there will not be another report. - * - * Hmmm... We may be corrupting an object that now expects - * to be longer than allowed. - */ - restore_bytes(s, "alignment padding", POISON_INUSE, - endobject, object + s->inuse); - } + if ((s->flags & SLAB_POISON) && s->objsize < s->inuse) + check_bytes_and_report(s, page, p, "Alignment padding", endobject, + POISON_INUSE, s->inuse - s->objsize); } if (s->flags & SLAB_POISON) { if (!active && (s->flags & __OBJECT_POISON) && - (!check_bytes(p, POISON_FREE, s->objsize - 1) || - p[s->objsize - 1] != POISON_END)) { - - object_err(s, page, p, "Poison check failed"); - restore_bytes(s, "Poison", POISON_FREE, - p, p + s->objsize -1); - restore_bytes(s, "Poison", POISON_END, - p + s->objsize - 1, p + s->objsize); + (!check_bytes_and_report(s, page, p, "Poison", p, + POISON_FREE, s->objsize - 1) || + !check_bytes_and_report(s, page, p, "Poison", + p + s->objsize -1, POISON_END, 1))) return 0; - } /* * check_pad_bytes cleans up on its own. */ @@ -673,25 +725,17 @@ static int check_slab(struct kmem_cache *s, struct page *page) VM_BUG_ON(!irqs_disabled()); if (!PageSlab(page)) { - slab_err(s, page, "Not a valid slab page flags=%lx " - "mapping=0x%p count=%d", page->flags, page->mapping, - page_count(page)); + slab_err(s, page, "Not a valid slab page"); return 0; } if (page->offset * sizeof(void *) != s->offset) { - slab_err(s, page, "Corrupted offset %lu flags=0x%lx " - "mapping=0x%p count=%d", - (unsigned long)(page->offset * sizeof(void *)), - page->flags, - page->mapping, - page_count(page)); + slab_err(s, page, "Corrupted offset %lu", + (unsigned long)(page->offset * sizeof(void *))); return 0; } if (page->inuse > s->objects) { - slab_err(s, page, "inuse %u > max %u @0x%p flags=%lx " - "mapping=0x%p count=%d", - s->name, page->inuse, s->objects, page->flags, - page->mapping, page_count(page)); + slab_err(s, page, "inuse %u > max %u", + s->name, page->inuse, s->objects); return 0; } /* Slab_pad_check fixes things up after itself */ @@ -719,13 +763,10 @@ static int on_freelist(struct kmem_cache *s, struct page *page, void *search) set_freepointer(s, object, NULL); break; } else { - slab_err(s, page, "Freepointer 0x%p corrupt", - fp); + slab_err(s, page, "Freepointer corrupt"); page->freelist = NULL; page->inuse = s->objects; - printk(KERN_ERR "@@@ SLUB %s: Freelist " - "cleared. Slab 0x%p\n", - s->name, page); + slab_fix(s, "Freelist cleared"); return 0; } break; @@ -737,11 +778,9 @@ static int on_freelist(struct kmem_cache *s, struct page *page, void *search) if (page->inuse != s->objects - nr) { slab_err(s, page, "Wrong object count. Counter is %d but " - "counted were %d", s, page, page->inuse, - s->objects - nr); + "counted were %d", page->inuse, s->objects - nr); page->inuse = s->objects - nr; - printk(KERN_ERR "@@@ SLUB %s: Object count adjusted. " - "Slab @0x%p\n", s->name, page); + slab_fix(s, "Object count adjusted."); } return search == NULL; } @@ -803,7 +842,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page, goto bad; if (object && !on_freelist(s, page, object)) { - slab_err(s, page, "Object 0x%p already allocated", object); + object_err(s, page, object, "Object already allocated"); goto bad; } @@ -829,8 +868,7 @@ bad: * to avoid issues in the future. Marking all objects * as used avoids touching the remaining objects. */ - printk(KERN_ERR "@@@ SLUB: %s slab 0x%p. Marking all objects used.\n", - s->name, page); + slab_fix(s, "Marking all objects used"); page->inuse = s->objects; page->freelist = NULL; /* Fix up fields that may be corrupted */ @@ -851,7 +889,7 @@ static int free_debug_processing(struct kmem_cache *s, struct page *page, } if (on_freelist(s, page, object)) { - slab_err(s, page, "Object 0x%p already free", object); + object_err(s, page, object, "Object already free"); goto fail; } @@ -870,8 +908,8 @@ static int free_debug_processing(struct kmem_cache *s, struct page *page, dump_stack(); } else - slab_err(s, page, "object at 0x%p belongs " - "to slab %s", object, page->slab->name); + object_err(s, page, object, + "page slab pointer corrupt."); goto fail; } @@ -885,8 +923,7 @@ static int free_debug_processing(struct kmem_cache *s, struct page *page, return 1; fail: - printk(KERN_ERR "@@@ SLUB: %s slab 0x%p object at 0x%p not freed.\n", - s->name, page, object); + slab_fix(s, "Object at 0x%p not freed", object); return 0; } @@ -1041,7 +1078,7 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node) void *last; void *p; - BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK)); + BUG_ON(flags & ~(GFP_DMA | __GFP_ZERO | GFP_LEVEL_MASK)); if (flags & __GFP_WAIT) local_irq_enable(); @@ -1359,7 +1396,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page, int cpu) unfreeze_slab(s, page); } -static void flush_slab(struct kmem_cache *s, struct page *page, int cpu) +static inline void flush_slab(struct kmem_cache *s, struct page *page, int cpu) { slab_lock(page); deactivate_slab(s, page, cpu); @@ -1369,7 +1406,7 @@ static void flush_slab(struct kmem_cache *s, struct page *page, int cpu) * Flush cpu slab. * Called from IPI handler with interrupts disabled. */ -static void __flush_cpu_slab(struct kmem_cache *s, int cpu) +static inline void __flush_cpu_slab(struct kmem_cache *s, int cpu) { struct page *page = s->cpu_slab[cpu]; @@ -1504,7 +1541,7 @@ debug: * Otherwise we can simply pick the next object from the lockless free list. */ static void __always_inline *slab_alloc(struct kmem_cache *s, - gfp_t gfpflags, int node, void *addr) + gfp_t gfpflags, int node, void *addr) { struct page *page; void **object; @@ -1522,6 +1559,10 @@ static void __always_inline *slab_alloc(struct kmem_cache *s, page->lockless_freelist = object[page->offset]; } local_irq_restore(flags); + + if (unlikely((gfpflags & __GFP_ZERO) && object)) + memset(object, 0, s->objsize); + return object; } @@ -1705,8 +1746,17 @@ static inline int slab_order(int size, int min_objects, { int order; int rem; + int min_order = slub_min_order; - for (order = max(slub_min_order, + /* + * If we would create too many object per slab then reduce + * the slab order even if it goes below slub_min_order. + */ + while (min_order > 0 && + (PAGE_SIZE << min_order) >= MAX_OBJECTS_PER_SLAB * size) + min_order--; + + for (order = max(min_order, fls(min_objects * size - 1) - PAGE_SHIFT); order <= max_order; order++) { @@ -1720,6 +1770,9 @@ static inline int slab_order(int size, int min_objects, if (rem <= slab_size / fract_leftover) break; + /* If the next size is too high then exit now */ + if (slab_size * 2 >= MAX_OBJECTS_PER_SLAB * size) + break; } return order; @@ -1800,7 +1853,9 @@ static void init_kmem_cache_node(struct kmem_cache_node *n) atomic_long_set(&n->nr_slabs, 0); spin_lock_init(&n->list_lock); INIT_LIST_HEAD(&n->partial); +#ifdef CONFIG_SLUB_DEBUG INIT_LIST_HEAD(&n->full); +#endif } #ifdef CONFIG_NUMA @@ -1828,7 +1883,10 @@ static struct kmem_cache_node * __init early_kmem_cache_node_alloc(gfp_t gfpflag page->freelist = get_freepointer(kmalloc_caches, n); page->inuse++; kmalloc_caches->node[node] = n; - setup_object_debug(kmalloc_caches, page, n); +#ifdef CONFIG_SLUB_DEBUG + init_object(kmalloc_caches, n, 1); + init_tracking(kmalloc_caches, n); +#endif init_kmem_cache_node(n); atomic_long_inc(&n->nr_slabs); add_partial(n, page); @@ -2006,7 +2064,7 @@ static int calculate_sizes(struct kmem_cache *s) * The page->inuse field is only 16 bit wide! So we cannot have * more than 64k objects per slab. */ - if (!s->objects || s->objects > 65535) + if (!s->objects || s->objects > MAX_OBJECTS_PER_SLAB) return 0; return 1; @@ -2110,7 +2168,7 @@ static int free_list(struct kmem_cache *s, struct kmem_cache_node *n, /* * Release all resources used by a slab cache. */ -static int kmem_cache_close(struct kmem_cache *s) +static inline int kmem_cache_close(struct kmem_cache *s) { int node; @@ -2138,12 +2196,13 @@ void kmem_cache_destroy(struct kmem_cache *s) s->refcount--; if (!s->refcount) { list_del(&s->list); + up_write(&slub_lock); if (kmem_cache_close(s)) WARN_ON(1); sysfs_slab_remove(s); kfree(s); - } - up_write(&slub_lock); + } else + up_write(&slub_lock); } EXPORT_SYMBOL(kmem_cache_destroy); @@ -2216,47 +2275,92 @@ panic: panic("Creation of kmalloc slab %s size=%d failed.\n", name, size); } -static struct kmem_cache *get_slab(size_t size, gfp_t flags) +#ifdef CONFIG_ZONE_DMA +static noinline struct kmem_cache *dma_kmalloc_cache(int index, gfp_t flags) { - int index = kmalloc_index(size); + struct kmem_cache *s; + struct kmem_cache *x; + char *text; + size_t realsize; - if (!index) - return NULL; + s = kmalloc_caches_dma[index]; + if (s) + return s; - /* Allocation too large? */ - BUG_ON(index < 0); + /* Dynamically create dma cache */ + x = kmalloc(kmem_size, flags & ~SLUB_DMA); + if (!x) + panic("Unable to allocate memory for dma cache\n"); -#ifdef CONFIG_ZONE_DMA - if ((flags & SLUB_DMA)) { - struct kmem_cache *s; - struct kmem_cache *x; - char *text; - size_t realsize; - - s = kmalloc_caches_dma[index]; - if (s) - return s; + realsize = kmalloc_caches[index].objsize; + text = kasprintf(flags & ~SLUB_DMA, "kmalloc_dma-%d", + (unsigned int)realsize); + s = create_kmalloc_cache(x, text, realsize, flags); + down_write(&slub_lock); + if (!kmalloc_caches_dma[index]) { + kmalloc_caches_dma[index] = s; + up_write(&slub_lock); + return s; + } + up_write(&slub_lock); + kmem_cache_destroy(s); + return kmalloc_caches_dma[index]; +} +#endif + +/* + * Conversion table for small slabs sizes / 8 to the index in the + * kmalloc array. This is necessary for slabs < 192 since we have non power + * of two cache sizes there. The size of larger slabs can be determined using + * fls. + */ +static s8 size_index[24] = { + 3, /* 8 */ + 4, /* 16 */ + 5, /* 24 */ + 5, /* 32 */ + 6, /* 40 */ + 6, /* 48 */ + 6, /* 56 */ + 6, /* 64 */ + 1, /* 72 */ + 1, /* 80 */ + 1, /* 88 */ + 1, /* 96 */ + 7, /* 104 */ + 7, /* 112 */ + 7, /* 120 */ + 7, /* 128 */ + 2, /* 136 */ + 2, /* 144 */ + 2, /* 152 */ + 2, /* 160 */ + 2, /* 168 */ + 2, /* 176 */ + 2, /* 184 */ + 2 /* 192 */ +}; - /* Dynamically create dma cache */ - x = kmalloc(kmem_size, flags & ~SLUB_DMA); - if (!x) - panic("Unable to allocate memory for dma cache\n"); +static struct kmem_cache *get_slab(size_t size, gfp_t flags) +{ + int index; - if (index <= KMALLOC_SHIFT_HIGH) - realsize = 1 << index; - else { - if (index == 1) - realsize = 96; - else - realsize = 192; - } + if (size <= 192) { + if (!size) + return ZERO_SIZE_PTR; - text = kasprintf(flags & ~SLUB_DMA, "kmalloc_dma-%d", - (unsigned int)realsize); - s = create_kmalloc_cache(x, text, realsize, flags); - kmalloc_caches_dma[index] = s; - return s; + index = size_index[(size - 1) / 8]; + } else { + if (size > KMALLOC_MAX_SIZE) + return NULL; + + index = fls(size - 1); } + +#ifdef CONFIG_ZONE_DMA + if (unlikely((flags & SLUB_DMA))) + return dma_kmalloc_cache(index, flags); + #endif return &kmalloc_caches[index]; } @@ -2265,9 +2369,10 @@ void *__kmalloc(size_t size, gfp_t flags) { struct kmem_cache *s = get_slab(size, flags); - if (s) - return slab_alloc(s, flags, -1, __builtin_return_address(0)); - return ZERO_SIZE_PTR; + if (ZERO_OR_NULL_PTR(s)) + return s; + + return slab_alloc(s, flags, -1, __builtin_return_address(0)); } EXPORT_SYMBOL(__kmalloc); @@ -2276,9 +2381,10 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node) { struct kmem_cache *s = get_slab(size, flags); - if (s) - return slab_alloc(s, flags, node, __builtin_return_address(0)); - return ZERO_SIZE_PTR; + if (ZERO_OR_NULL_PTR(s)) + return s; + + return slab_alloc(s, flags, node, __builtin_return_address(0)); } EXPORT_SYMBOL(__kmalloc_node); #endif @@ -2329,7 +2435,7 @@ void kfree(const void *x) * this comparison would be true for all "negative" pointers * (which would cover the whole upper half of the address space). */ - if ((unsigned long)x <= (unsigned long)ZERO_SIZE_PTR) + if (ZERO_OR_NULL_PTR(x)) return; page = virt_to_head_page(x); @@ -2418,43 +2524,6 @@ int kmem_cache_shrink(struct kmem_cache *s) } EXPORT_SYMBOL(kmem_cache_shrink); -/** - * krealloc - reallocate memory. The contents will remain unchanged. - * @p: object to reallocate memory for. - * @new_size: how many bytes of memory are required. - * @flags: the type of memory to allocate. - * - * The contents of the object pointed to are preserved up to the - * lesser of the new and old sizes. If @p is %NULL, krealloc() - * behaves exactly like kmalloc(). If @size is 0 and @p is not a - * %NULL pointer, the object pointed to is freed. - */ -void *krealloc(const void *p, size_t new_size, gfp_t flags) -{ - void *ret; - size_t ks; - - if (unlikely(!p || p == ZERO_SIZE_PTR)) - return kmalloc(new_size, flags); - - if (unlikely(!new_size)) { - kfree(p); - return ZERO_SIZE_PTR; - } - - ks = ksize(p); - if (ks >= new_size) - return (void *)p; - - ret = kmalloc(new_size, flags); - if (ret) { - memcpy(ret, p, min(new_size, ks)); - kfree(p); - } - return ret; -} -EXPORT_SYMBOL(krealloc); - /******************************************************************** * Basic setup of slabs *******************************************************************/ @@ -2497,6 +2566,24 @@ void __init kmem_cache_init(void) caches++; } + + /* + * Patch up the size_index table if we have strange large alignment + * requirements for the kmalloc array. This is only the case for + * mips it seems. The standard arches will not generate any code here. + * + * Largest permitted alignment is 256 bytes due to the way we + * handle the index determination for the smaller caches. + * + * Make sure that nothing crazy happens if someone starts tinkering + * around with ARCH_KMALLOC_MINALIGN + */ + BUILD_BUG_ON(KMALLOC_MIN_SIZE > 256 || + (KMALLOC_MIN_SIZE & (KMALLOC_MIN_SIZE - 1))); + + for (i = 8; i < KMALLOC_MIN_SIZE; i += 8) + size_index[(i - 1) / 8] = KMALLOC_SHIFT_LOW; + slab_state = UP; /* Provide the correct kmalloc names now that the caches are up */ @@ -2542,7 +2629,7 @@ static struct kmem_cache *find_mergeable(size_t size, size_t align, unsigned long flags, void (*ctor)(void *, struct kmem_cache *, unsigned long)) { - struct list_head *h; + struct kmem_cache *s; if (slub_nomerge || (flags & SLUB_NEVER_MERGE)) return NULL; @@ -2554,10 +2641,7 @@ static struct kmem_cache *find_mergeable(size_t size, align = calculate_alignment(flags, align, size); size = ALIGN(size, align); - list_for_each(h, &slab_caches) { - struct kmem_cache *s = - container_of(h, struct kmem_cache, list); - + list_for_each_entry(s, &slab_caches, list) { if (slab_unmergeable(s)) continue; @@ -2600,25 +2684,26 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, */ s->objsize = max(s->objsize, (int)size); s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *))); + up_write(&slub_lock); if (sysfs_slab_alias(s, name)) goto err; - } else { - s = kmalloc(kmem_size, GFP_KERNEL); - if (s && kmem_cache_open(s, GFP_KERNEL, name, + return s; + } + s = kmalloc(kmem_size, GFP_KERNEL); + if (s) { + if (kmem_cache_open(s, GFP_KERNEL, name, size, align, flags, ctor)) { - if (sysfs_slab_add(s)) { - kfree(s); - goto err; - } list_add(&s->list, &slab_caches); - } else - kfree(s); + up_write(&slub_lock); + if (sysfs_slab_add(s)) + goto err; + return s; + } + kfree(s); } up_write(&slub_lock); - return s; err: - up_write(&slub_lock); if (flags & SLAB_PANIC) panic("Cannot create slabcache %s\n", name); else @@ -2627,45 +2712,7 @@ err: } EXPORT_SYMBOL(kmem_cache_create); -void *kmem_cache_zalloc(struct kmem_cache *s, gfp_t flags) -{ - void *x; - - x = slab_alloc(s, flags, -1, __builtin_return_address(0)); - if (x) - memset(x, 0, s->objsize); - return x; -} -EXPORT_SYMBOL(kmem_cache_zalloc); - #ifdef CONFIG_SMP -static void for_all_slabs(void (*func)(struct kmem_cache *, int), int cpu) -{ - struct list_head *h; - - down_read(&slub_lock); - list_for_each(h, &slab_caches) { - struct kmem_cache *s = - container_of(h, struct kmem_cache, list); - - func(s, cpu); - } - up_read(&slub_lock); -} - -/* - * Version of __flush_cpu_slab for the case that interrupts - * are enabled. - */ -static void cpu_slab_flush(struct kmem_cache *s, int cpu) -{ - unsigned long flags; - - local_irq_save(flags); - __flush_cpu_slab(s, cpu); - local_irq_restore(flags); -} - /* * Use the cpu notifier to insure that the cpu slabs are flushed when * necessary. @@ -2674,13 +2721,21 @@ static int __cpuinit slab_cpuup_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) { long cpu = (long)hcpu; + struct kmem_cache *s; + unsigned long flags; switch (action) { case CPU_UP_CANCELED: case CPU_UP_CANCELED_FROZEN: case CPU_DEAD: case CPU_DEAD_FROZEN: - for_all_slabs(cpu_slab_flush, cpu); + down_read(&slub_lock); + list_for_each_entry(s, &slab_caches, list) { + local_irq_save(flags); + __flush_cpu_slab(s, cpu); + local_irq_restore(flags); + } + up_read(&slub_lock); break; default: break; @@ -2697,8 +2752,8 @@ void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, void *caller) { struct kmem_cache *s = get_slab(size, gfpflags); - if (!s) - return ZERO_SIZE_PTR; + if (ZERO_OR_NULL_PTR(s)) + return s; return slab_alloc(s, gfpflags, -1, caller); } @@ -2708,18 +2763,18 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags, { struct kmem_cache *s = get_slab(size, gfpflags); - if (!s) - return ZERO_SIZE_PTR; + if (ZERO_OR_NULL_PTR(s)) + return s; return slab_alloc(s, gfpflags, node, caller); } #if defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG) -static int validate_slab(struct kmem_cache *s, struct page *page) +static int validate_slab(struct kmem_cache *s, struct page *page, + unsigned long *map) { void *p; void *addr = page_address(page); - DECLARE_BITMAP(map, s->objects); if (!check_slab(s, page) || !on_freelist(s, page, NULL)) @@ -2741,10 +2796,11 @@ static int validate_slab(struct kmem_cache *s, struct page *page) return 1; } -static void validate_slab_slab(struct kmem_cache *s, struct page *page) +static void validate_slab_slab(struct kmem_cache *s, struct page *page, + unsigned long *map) { if (slab_trylock(page)) { - validate_slab(s, page); + validate_slab(s, page, map); slab_unlock(page); } else printk(KERN_INFO "SLUB %s: Skipped busy slab 0x%p\n", @@ -2761,7 +2817,8 @@ static void validate_slab_slab(struct kmem_cache *s, struct page *page) } } -static int validate_slab_node(struct kmem_cache *s, struct kmem_cache_node *n) +static int validate_slab_node(struct kmem_cache *s, + struct kmem_cache_node *n, unsigned long *map) { unsigned long count = 0; struct page *page; @@ -2770,7 +2827,7 @@ static int validate_slab_node(struct kmem_cache *s, struct kmem_cache_node *n) spin_lock_irqsave(&n->list_lock, flags); list_for_each_entry(page, &n->partial, lru) { - validate_slab_slab(s, page); + validate_slab_slab(s, page, map); count++; } if (count != n->nr_partial) @@ -2781,7 +2838,7 @@ static int validate_slab_node(struct kmem_cache *s, struct kmem_cache_node *n) goto out; list_for_each_entry(page, &n->full, lru) { - validate_slab_slab(s, page); + validate_slab_slab(s, page, map); count++; } if (count != atomic_long_read(&n->nr_slabs)) @@ -2794,17 +2851,23 @@ out: return count; } -static unsigned long validate_slab_cache(struct kmem_cache *s) +static long validate_slab_cache(struct kmem_cache *s) { int node; unsigned long count = 0; + unsigned long *map = kmalloc(BITS_TO_LONGS(s->objects) * + sizeof(unsigned long), GFP_KERNEL); + + if (!map) + return -ENOMEM; flush_all(s); for_each_online_node(node) { struct kmem_cache_node *n = get_node(s, node); - count += validate_slab_node(s, n); + count += validate_slab_node(s, n, map); } + kfree(map); return count; } @@ -2893,18 +2956,14 @@ static void free_loc_track(struct loc_track *t) get_order(sizeof(struct location) * t->max)); } -static int alloc_loc_track(struct loc_track *t, unsigned long max) +static int alloc_loc_track(struct loc_track *t, unsigned long max, gfp_t flags) { struct location *l; int order; - if (!max) - max = PAGE_SIZE / sizeof(struct location); - order = get_order(sizeof(struct location) * max); - l = (void *)__get_free_pages(GFP_ATOMIC, order); - + l = (void *)__get_free_pages(flags, order); if (!l) return 0; @@ -2970,7 +3029,7 @@ static int add_location(struct loc_track *t, struct kmem_cache *s, /* * Not found. Insert new tracking element. */ - if (t->count >= t->max && !alloc_loc_track(t, 2 * t->max)) + if (t->count >= t->max && !alloc_loc_track(t, 2 * t->max, GFP_ATOMIC)) return 0; l = t->loc + pos; @@ -3013,11 +3072,12 @@ static int list_locations(struct kmem_cache *s, char *buf, { int n = 0; unsigned long i; - struct loc_track t; + struct loc_track t = { 0, 0, NULL }; int node; - t.count = 0; - t.max = 0; + if (!alloc_loc_track(&t, PAGE_SIZE / sizeof(struct location), + GFP_KERNEL)) + return sprintf(buf, "Out of memory\n"); /* Push back cpu slabs */ flush_all(s); @@ -3421,11 +3481,14 @@ static ssize_t validate_show(struct kmem_cache *s, char *buf) static ssize_t validate_store(struct kmem_cache *s, const char *buf, size_t length) { - if (buf[0] == '1') - validate_slab_cache(s); - else - return -EINVAL; - return length; + int ret = -EINVAL; + + if (buf[0] == '1') { + ret = validate_slab_cache(s); + if (ret >= 0) + ret = length; + } + return ret; } SLAB_ATTR(validate); @@ -3579,7 +3642,7 @@ static struct kset_uevent_ops slab_uevent_ops = { .filter = uevent_filter, }; -decl_subsys(slab, &slab_ktype, &slab_uevent_ops); +static decl_subsys(slab, &slab_ktype, &slab_uevent_ops); #define ID_STR_LENGTH 64 @@ -3677,7 +3740,7 @@ struct saved_alias { struct saved_alias *next; }; -struct saved_alias *alias_list; +static struct saved_alias *alias_list; static int sysfs_slab_alias(struct kmem_cache *s, const char *name) { @@ -3705,7 +3768,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name) static int __init slab_sysfs_init(void) { - struct list_head *h; + struct kmem_cache *s; int err; err = subsystem_register(&slab_subsys); @@ -3716,10 +3779,7 @@ static int __init slab_sysfs_init(void) slab_state = SYSFS; - list_for_each(h, &slab_caches) { - struct kmem_cache *s = - container_of(h, struct kmem_cache, list); - + list_for_each_entry(s, &slab_caches, list) { err = sysfs_slab_add(s); BUG_ON(err); } diff --git a/mm/swap_state.c b/mm/swap_state.c index 925d5c50f18d..67daecb6031a 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -334,7 +334,8 @@ struct page *read_swap_cache_async(swp_entry_t entry, * Get a new page to read into from swap. */ if (!new_page) { - new_page = alloc_page_vma(GFP_HIGHUSER, vma, addr); + new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, + vma, addr); if (!new_page) break; /* Out of memory */ } diff --git a/mm/truncate.c b/mm/truncate.c index 7c994f2d6145..5cdfbc1a59fd 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -82,7 +82,7 @@ EXPORT_SYMBOL(cancel_dirty_page); /* * If truncate cannot remove the fs-private metadata from the page, the page * becomes anonymous. It will be left on the LRU and may even be mapped into - * user pagetables if we're racing with filemap_nopage(). + * user pagetables if we're racing with filemap_fault(). * * We need to bale out if page->mapping is no longer equal to the original * mapping. This happens a) when the VM reclaimed the page while we waited on @@ -100,9 +100,9 @@ truncate_complete_page(struct address_space *mapping, struct page *page) if (PagePrivate(page)) do_invalidatepage(page, 0); + remove_from_page_cache(page); ClearPageUptodate(page); ClearPageMappedToDisk(page); - remove_from_page_cache(page); page_cache_release(page); /* pagecache ref */ } @@ -192,6 +192,11 @@ void truncate_inode_pages_range(struct address_space *mapping, unlock_page(page); continue; } + if (page_mapped(page)) { + unmap_mapping_range(mapping, + (loff_t)page_index<<PAGE_CACHE_SHIFT, + PAGE_CACHE_SIZE, 0); + } truncate_complete_page(mapping, page); unlock_page(page); } @@ -229,6 +234,11 @@ void truncate_inode_pages_range(struct address_space *mapping, break; lock_page(page); wait_on_page_writeback(page); + if (page_mapped(page)) { + unmap_mapping_range(mapping, + (loff_t)page->index<<PAGE_CACHE_SHIFT, + PAGE_CACHE_SIZE, 0); + } if (page->index > next) next = page->index; next++; @@ -405,7 +415,7 @@ int invalidate_inode_pages2_range(struct address_space *mapping, break; } wait_on_page_writeback(page); - while (page_mapped(page)) { + if (page_mapped(page)) { if (!did_range_unmap) { /* * Zap the rest of the file in one hit. @@ -425,6 +435,7 @@ int invalidate_inode_pages2_range(struct address_space *mapping, PAGE_CACHE_SIZE, 0); } } + BUG_ON(page_mapped(page)); ret = do_launder_page(mapping, page); if (ret == 0 && !invalidate_complete_page2(mapping, page)) ret = -EIO; diff --git a/mm/util.c b/mm/util.c index ace2aea69f1a..bf340d806868 100644 --- a/mm/util.c +++ b/mm/util.c @@ -5,22 +5,7 @@ #include <asm/uaccess.h> /** - * __kzalloc - allocate memory. The memory is set to zero. - * @size: how many bytes of memory are required. - * @flags: the type of memory to allocate. - */ -void *__kzalloc(size_t size, gfp_t flags) -{ - void *ret = kmalloc_track_caller(size, flags); - if (ret) - memset(ret, 0, size); - return ret; -} -EXPORT_SYMBOL(__kzalloc); - -/* * kstrdup - allocate space for and copy an existing string - * * @s: the string to duplicate * @gfp: the GFP mask used in the kmalloc() call when allocating memory */ @@ -41,6 +26,30 @@ char *kstrdup(const char *s, gfp_t gfp) EXPORT_SYMBOL(kstrdup); /** + * kstrndup - allocate space for and copy an existing string + * @s: the string to duplicate + * @max: read at most @max chars from @s + * @gfp: the GFP mask used in the kmalloc() call when allocating memory + */ +char *kstrndup(const char *s, size_t max, gfp_t gfp) +{ + size_t len; + char *buf; + + if (!s) + return NULL; + + len = strnlen(s, max); + buf = kmalloc_track_caller(len+1, gfp); + if (buf) { + memcpy(buf, s, len); + buf[len] = '\0'; + } + return buf; +} +EXPORT_SYMBOL(kstrndup); + +/** * kmemdup - duplicate region of memory * * @src: memory region to duplicate @@ -58,9 +67,42 @@ void *kmemdup(const void *src, size_t len, gfp_t gfp) } EXPORT_SYMBOL(kmemdup); +/** + * krealloc - reallocate memory. The contents will remain unchanged. + * @p: object to reallocate memory for. + * @new_size: how many bytes of memory are required. + * @flags: the type of memory to allocate. + * + * The contents of the object pointed to are preserved up to the + * lesser of the new and old sizes. If @p is %NULL, krealloc() + * behaves exactly like kmalloc(). If @size is 0 and @p is not a + * %NULL pointer, the object pointed to is freed. + */ +void *krealloc(const void *p, size_t new_size, gfp_t flags) +{ + void *ret; + size_t ks; + + if (unlikely(!new_size)) { + kfree(p); + return ZERO_SIZE_PTR; + } + + ks = ksize(p); + if (ks >= new_size) + return (void *)p; + + ret = kmalloc_track_caller(new_size, flags); + if (ret) { + memcpy(ret, p, min(new_size, ks)); + kfree(p); + } + return ret; +} +EXPORT_SYMBOL(krealloc); + /* * strndup_user - duplicate an existing string from user space - * * @s: The string to duplicate * @n: Maximum number of bytes to copy, including the trailing NUL. */ diff --git a/mm/vmalloc.c b/mm/vmalloc.c index ddf87145cc49..3cee76a8c9f0 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -164,6 +164,7 @@ int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages) flush_cache_vmap((unsigned long) area->addr, end); return err; } +EXPORT_SYMBOL_GPL(map_vm_area); static struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long flags, unsigned long start, unsigned long end, @@ -242,6 +243,7 @@ struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags, { return __get_vm_area_node(size, flags, start, end, -1, GFP_KERNEL); } +EXPORT_SYMBOL_GPL(__get_vm_area); /** * get_vm_area - reserve a contingous kernel virtual area @@ -432,11 +434,12 @@ void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask, area->nr_pages = nr_pages; /* Please note that the recursion is strictly bounded. */ if (array_size > PAGE_SIZE) { - pages = __vmalloc_node(array_size, gfp_mask, PAGE_KERNEL, node); + pages = __vmalloc_node(array_size, gfp_mask | __GFP_ZERO, + PAGE_KERNEL, node); area->flags |= VM_VPAGES; } else { pages = kmalloc_node(array_size, - (gfp_mask & GFP_LEVEL_MASK), + (gfp_mask & GFP_LEVEL_MASK) | __GFP_ZERO, node); } area->pages = pages; @@ -445,7 +448,6 @@ void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask, kfree(area); return NULL; } - memset(area->pages, 0, array_size); for (i = 0; i < area->nr_pages; i++) { if (node < 0) @@ -583,9 +585,9 @@ void *vmalloc_exec(unsigned long size) } #if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32) -#define GFP_VMALLOC32 GFP_DMA32 +#define GFP_VMALLOC32 GFP_DMA32 | GFP_KERNEL #elif defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA) -#define GFP_VMALLOC32 GFP_DMA +#define GFP_VMALLOC32 GFP_DMA | GFP_KERNEL #else #define GFP_VMALLOC32 GFP_KERNEL #endif @@ -767,3 +769,56 @@ EXPORT_SYMBOL(remap_vmalloc_range); void __attribute__((weak)) vmalloc_sync_all(void) { } + + +static int f(pte_t *pte, struct page *pmd_page, unsigned long addr, void *data) +{ + /* apply_to_page_range() does all the hard work. */ + return 0; +} + +/** + * alloc_vm_area - allocate a range of kernel address space + * @size: size of the area + * @returns: NULL on failure, vm_struct on success + * + * This function reserves a range of kernel address space, and + * allocates pagetables to map that range. No actual mappings + * are created. If the kernel address space is not shared + * between processes, it syncs the pagetable across all + * processes. + */ +struct vm_struct *alloc_vm_area(size_t size) +{ + struct vm_struct *area; + + area = get_vm_area(size, VM_IOREMAP); + if (area == NULL) + return NULL; + + /* + * This ensures that page tables are constructed for this region + * of kernel virtual address space and mapped into init_mm. + */ + if (apply_to_page_range(&init_mm, (unsigned long)area->addr, + area->size, f, NULL)) { + free_vm_area(area); + return NULL; + } + + /* Make sure the pagetables are constructed in process kernel + mappings */ + vmalloc_sync_all(); + + return area; +} +EXPORT_SYMBOL_GPL(alloc_vm_area); + +void free_vm_area(struct vm_struct *area) +{ + struct vm_struct *ret; + ret = remove_vm_area(area->addr); + BUG_ON(ret != area); + kfree(area); +} +EXPORT_SYMBOL_GPL(free_vm_area); diff --git a/mm/vmscan.c b/mm/vmscan.c index 1be5a6376ef0..d419e10e3daa 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -66,17 +66,8 @@ struct scan_control { int swappiness; int all_unreclaimable; -}; -/* - * The list of shrinker callbacks used by to apply pressure to - * ageable caches. - */ -struct shrinker { - shrinker_t shrinker; - struct list_head list; - int seeks; /* seeks to recreate an obj */ - long nr; /* objs pending delete */ + int order; }; #define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru)) @@ -121,34 +112,25 @@ static DECLARE_RWSEM(shrinker_rwsem); /* * Add a shrinker callback to be called from the vm */ -struct shrinker *set_shrinker(int seeks, shrinker_t theshrinker) +void register_shrinker(struct shrinker *shrinker) { - struct shrinker *shrinker; - - shrinker = kmalloc(sizeof(*shrinker), GFP_KERNEL); - if (shrinker) { - shrinker->shrinker = theshrinker; - shrinker->seeks = seeks; - shrinker->nr = 0; - down_write(&shrinker_rwsem); - list_add_tail(&shrinker->list, &shrinker_list); - up_write(&shrinker_rwsem); - } - return shrinker; + shrinker->nr = 0; + down_write(&shrinker_rwsem); + list_add_tail(&shrinker->list, &shrinker_list); + up_write(&shrinker_rwsem); } -EXPORT_SYMBOL(set_shrinker); +EXPORT_SYMBOL(register_shrinker); /* * Remove one */ -void remove_shrinker(struct shrinker *shrinker) +void unregister_shrinker(struct shrinker *shrinker) { down_write(&shrinker_rwsem); list_del(&shrinker->list); up_write(&shrinker_rwsem); - kfree(shrinker); } -EXPORT_SYMBOL(remove_shrinker); +EXPORT_SYMBOL(unregister_shrinker); #define SHRINK_BATCH 128 /* @@ -185,7 +167,7 @@ unsigned long shrink_slab(unsigned long scanned, gfp_t gfp_mask, list_for_each_entry(shrinker, &shrinker_list, list) { unsigned long long delta; unsigned long total_scan; - unsigned long max_pass = (*shrinker->shrinker)(0, gfp_mask); + unsigned long max_pass = (*shrinker->shrink)(0, gfp_mask); delta = (4 * scanned) / shrinker->seeks; delta *= max_pass; @@ -213,8 +195,8 @@ unsigned long shrink_slab(unsigned long scanned, gfp_t gfp_mask, int shrink_ret; int nr_before; - nr_before = (*shrinker->shrinker)(0, gfp_mask); - shrink_ret = (*shrinker->shrinker)(this_scan, gfp_mask); + nr_before = (*shrinker->shrink)(0, gfp_mask); + shrink_ret = (*shrinker->shrink)(this_scan, gfp_mask); if (shrink_ret == -1) break; if (shrink_ret < nr_before) @@ -481,7 +463,8 @@ static unsigned long shrink_page_list(struct list_head *page_list, referenced = page_referenced(page, 1); /* In active use or really unfreeable? Activate it. */ - if (referenced && page_mapping_inuse(page)) + if (sc->order <= PAGE_ALLOC_COSTLY_ORDER && + referenced && page_mapping_inuse(page)) goto activate_locked; #ifdef CONFIG_SWAP @@ -514,7 +497,7 @@ static unsigned long shrink_page_list(struct list_head *page_list, } if (PageDirty(page)) { - if (referenced) + if (sc->order <= PAGE_ALLOC_COSTLY_ORDER && referenced) goto keep_locked; if (!may_enter_fs) goto keep_locked; @@ -598,6 +581,51 @@ keep: return nr_reclaimed; } +/* LRU Isolation modes. */ +#define ISOLATE_INACTIVE 0 /* Isolate inactive pages. */ +#define ISOLATE_ACTIVE 1 /* Isolate active pages. */ +#define ISOLATE_BOTH 2 /* Isolate both active and inactive pages. */ + +/* + * Attempt to remove the specified page from its LRU. Only take this page + * if it is of the appropriate PageActive status. Pages which are being + * freed elsewhere are also ignored. + * + * page: page to consider + * mode: one of the LRU isolation modes defined above + * + * returns 0 on success, -ve errno on failure. + */ +static int __isolate_lru_page(struct page *page, int mode) +{ + int ret = -EINVAL; + + /* Only take pages on the LRU. */ + if (!PageLRU(page)) + return ret; + + /* + * When checking the active state, we need to be sure we are + * dealing with comparible boolean values. Take the logical not + * of each. + */ + if (mode != ISOLATE_BOTH && (!PageActive(page) != !mode)) + return ret; + + ret = -EBUSY; + if (likely(get_page_unless_zero(page))) { + /* + * Be careful not to clear PageLRU until after we're + * sure the page is not being freed elsewhere -- the + * page release code relies on it. + */ + ClearPageLRU(page); + ret = 0; + } + + return ret; +} + /* * zone->lru_lock is heavily contended. Some of the functions that * shrink the lists perform better by taking out a batch of pages @@ -612,38 +640,90 @@ keep: * @src: The LRU list to pull pages off. * @dst: The temp list to put pages on to. * @scanned: The number of pages that were scanned. + * @order: The caller's attempted allocation order + * @mode: One of the LRU isolation modes * * returns how many pages were moved onto *@dst. */ static unsigned long isolate_lru_pages(unsigned long nr_to_scan, struct list_head *src, struct list_head *dst, - unsigned long *scanned) + unsigned long *scanned, int order, int mode) { unsigned long nr_taken = 0; - struct page *page; unsigned long scan; for (scan = 0; scan < nr_to_scan && !list_empty(src); scan++) { - struct list_head *target; + struct page *page; + unsigned long pfn; + unsigned long end_pfn; + unsigned long page_pfn; + int zone_id; + page = lru_to_page(src); prefetchw_prev_lru_page(page, src, flags); VM_BUG_ON(!PageLRU(page)); - list_del(&page->lru); - target = src; - if (likely(get_page_unless_zero(page))) { - /* - * Be careful not to clear PageLRU until after we're - * sure the page is not being freed elsewhere -- the - * page release code relies on it. - */ - ClearPageLRU(page); - target = dst; + switch (__isolate_lru_page(page, mode)) { + case 0: + list_move(&page->lru, dst); nr_taken++; - } /* else it is being freed elsewhere */ + break; + + case -EBUSY: + /* else it is being freed elsewhere */ + list_move(&page->lru, src); + continue; + + default: + BUG(); + } + + if (!order) + continue; - list_add(&page->lru, target); + /* + * Attempt to take all pages in the order aligned region + * surrounding the tag page. Only take those pages of + * the same active state as that tag page. We may safely + * round the target page pfn down to the requested order + * as the mem_map is guarenteed valid out to MAX_ORDER, + * where that page is in a different zone we will detect + * it from its zone id and abort this block scan. + */ + zone_id = page_zone_id(page); + page_pfn = page_to_pfn(page); + pfn = page_pfn & ~((1 << order) - 1); + end_pfn = pfn + (1 << order); + for (; pfn < end_pfn; pfn++) { + struct page *cursor_page; + + /* The target page is in the block, ignore it. */ + if (unlikely(pfn == page_pfn)) + continue; + + /* Avoid holes within the zone. */ + if (unlikely(!pfn_valid_within(pfn))) + break; + + cursor_page = pfn_to_page(pfn); + /* Check that we have not crossed a zone boundary. */ + if (unlikely(page_zone_id(cursor_page) != zone_id)) + continue; + switch (__isolate_lru_page(cursor_page, mode)) { + case 0: + list_move(&cursor_page->lru, dst); + nr_taken++; + scan++; + break; + + case -EBUSY: + /* else it is being freed elsewhere */ + list_move(&cursor_page->lru, src); + default: + break; + } + } } *scanned = scan; @@ -651,6 +731,24 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan, } /* + * clear_active_flags() is a helper for shrink_active_list(), clearing + * any active bits from the pages in the list. + */ +static unsigned long clear_active_flags(struct list_head *page_list) +{ + int nr_active = 0; + struct page *page; + + list_for_each_entry(page, page_list, lru) + if (PageActive(page)) { + ClearPageActive(page); + nr_active++; + } + + return nr_active; +} + +/* * shrink_inactive_list() is a helper for shrink_zone(). It returns the number * of reclaimed pages */ @@ -671,11 +769,18 @@ static unsigned long shrink_inactive_list(unsigned long max_scan, unsigned long nr_taken; unsigned long nr_scan; unsigned long nr_freed; + unsigned long nr_active; nr_taken = isolate_lru_pages(sc->swap_cluster_max, - &zone->inactive_list, - &page_list, &nr_scan); - __mod_zone_page_state(zone, NR_INACTIVE, -nr_taken); + &zone->inactive_list, + &page_list, &nr_scan, sc->order, + (sc->order > PAGE_ALLOC_COSTLY_ORDER)? + ISOLATE_BOTH : ISOLATE_INACTIVE); + nr_active = clear_active_flags(&page_list); + + __mod_zone_page_state(zone, NR_ACTIVE, -nr_active); + __mod_zone_page_state(zone, NR_INACTIVE, + -(nr_taken - nr_active)); zone->pages_scanned += nr_scan; spin_unlock_irq(&zone->lru_lock); @@ -820,7 +925,7 @@ force_reclaim_mapped: lru_add_drain(); spin_lock_irq(&zone->lru_lock); pgmoved = isolate_lru_pages(nr_pages, &zone->active_list, - &l_hold, &pgscanned); + &l_hold, &pgscanned, sc->order, ISOLATE_ACTIVE); zone->pages_scanned += pgscanned; __mod_zone_page_state(zone, NR_ACTIVE, -pgmoved); spin_unlock_irq(&zone->lru_lock); @@ -1011,7 +1116,7 @@ static unsigned long shrink_zones(int priority, struct zone **zones, * holds filesystem locks which prevent writeout this might not work, and the * allocation attempt will fail. */ -unsigned long try_to_free_pages(struct zone **zones, gfp_t gfp_mask) +unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask) { int priority; int ret = 0; @@ -1026,6 +1131,7 @@ unsigned long try_to_free_pages(struct zone **zones, gfp_t gfp_mask) .swap_cluster_max = SWAP_CLUSTER_MAX, .may_swap = 1, .swappiness = vm_swappiness, + .order = order, }; count_vm_event(ALLOCSTALL); @@ -1131,6 +1237,7 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order) .may_swap = 1, .swap_cluster_max = SWAP_CLUSTER_MAX, .swappiness = vm_swappiness, + .order = order, }; /* * temp_priority is used to remember the scanning priority at which @@ -1314,6 +1421,7 @@ static int kswapd(void *p) * trying to free the first piece of memory in the first place). */ tsk->flags |= PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD; + set_freezable(); order = 0; for ( ; ; ) { diff --git a/mm/vmstat.c b/mm/vmstat.c index eceaf496210f..fadf791cd7e6 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -472,7 +472,7 @@ const struct seq_operations fragmentation_op = { #endif #define TEXTS_FOR_ZONES(xx) TEXT_FOR_DMA(xx) TEXT_FOR_DMA32(xx) xx "_normal", \ - TEXT_FOR_HIGHMEM(xx) + TEXT_FOR_HIGHMEM(xx) xx "_movable", static const char * const vmstat_text[] = { /* Zoned VM counters */ diff --git a/net/atm/br2684.c b/net/atm/br2684.c index faa6aaf67563..c0f6861eefe3 100644 --- a/net/atm/br2684.c +++ b/net/atm/br2684.c @@ -460,11 +460,7 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb) skb_pull(skb, plen); skb_set_mac_header(skb, -ETH_HLEN); skb->pkt_type = PACKET_HOST; -#ifdef CONFIG_BR2684_FAST_TRANS - skb->protocol = ((u16 *) skb->data)[-1]; -#else /* some protocols might require this: */ skb->protocol = br_type_trans(skb, net_dev); -#endif /* CONFIG_BR2684_FAST_TRANS */ #else skb_pull(skb, plen - ETH_HLEN); skb->protocol = eth_type_trans(skb, net_dev); diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c index 1c8f4a0c5f43..1f78c3e336d8 100644 --- a/net/bluetooth/bnep/core.c +++ b/net/bluetooth/bnep/core.c @@ -36,6 +36,7 @@ #include <linux/signal.h> #include <linux/init.h> #include <linux/wait.h> +#include <linux/freezer.h> #include <linux/errno.h> #include <linux/net.h> #include <net/sock.h> @@ -474,7 +475,6 @@ static int bnep_session(void *arg) daemonize("kbnepd %s", dev->name); set_user_nice(current, -15); - current->flags |= PF_NOFREEZE; init_waitqueue_entry(&wait, current); add_wait_queue(sk->sk_sleep, &wait); diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c index 66bef1ccee2a..ca60a4517fd3 100644 --- a/net/bluetooth/cmtp/core.c +++ b/net/bluetooth/cmtp/core.c @@ -29,6 +29,7 @@ #include <linux/slab.h> #include <linux/poll.h> #include <linux/fcntl.h> +#include <linux/freezer.h> #include <linux/skbuff.h> #include <linux/socket.h> #include <linux/ioctl.h> @@ -287,7 +288,6 @@ static int cmtp_session(void *arg) daemonize("kcmtpd_ctr_%d", session->num); set_user_nice(current, -15); - current->flags |= PF_NOFREEZE; init_waitqueue_entry(&wait, current); add_wait_queue(sk->sk_sleep, &wait); diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index 450eb0244bbf..64d89ca28847 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -28,6 +28,7 @@ #include <linux/sched.h> #include <linux/slab.h> #include <linux/poll.h> +#include <linux/freezer.h> #include <linux/fcntl.h> #include <linux/skbuff.h> #include <linux/socket.h> @@ -547,7 +548,6 @@ static int hidp_session(void *arg) daemonize("khidpd_%04x%04x", vendor, product); set_user_nice(current, -15); - current->flags |= PF_NOFREEZE; init_waitqueue_entry(&ctrl_wait, current); init_waitqueue_entry(&intr_wait, current); diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 52e04df323ea..bb7220770f2c 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -33,6 +33,7 @@ #include <linux/sched.h> #include <linux/signal.h> #include <linux/init.h> +#include <linux/freezer.h> #include <linux/wait.h> #include <linux/device.h> #include <linux/net.h> @@ -1940,7 +1941,6 @@ static int rfcomm_run(void *unused) daemonize("krfcommd"); set_user_nice(current, -10); - current->flags |= PF_NOFREEZE; BT_DBG(""); diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index a786e7863200..1ea2f86f7683 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -125,7 +125,7 @@ static void br_stp_start(struct net_bridge *br) char *argv[] = { BR_STP_PROG, br->dev->name, "start", NULL }; char *envp[] = { NULL }; - r = call_usermodehelper(BR_STP_PROG, argv, envp, 1); + r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC); if (r == 0) { br->stp_enabled = BR_USER_STP; printk(KERN_INFO "%s: userspace STP started\n", br->dev->name); diff --git a/net/core/dev.c b/net/core/dev.c index 13a0d9f6da54..6357f54c8ff7 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2715,20 +2715,6 @@ int __dev_addr_add(struct dev_addr_list **list, int *count, return 0; } -void __dev_addr_discard(struct dev_addr_list **list) -{ - struct dev_addr_list *tmp; - - while (*list != NULL) { - tmp = *list; - *list = tmp->next; - if (tmp->da_users > tmp->da_gusers) - printk("__dev_addr_discard: address leakage! " - "da_users=%d\n", tmp->da_users); - kfree(tmp); - } -} - /** * dev_unicast_delete - Release secondary unicast address. * @dev: device @@ -2777,11 +2763,30 @@ int dev_unicast_add(struct net_device *dev, void *addr, int alen) } EXPORT_SYMBOL(dev_unicast_add); -static void dev_unicast_discard(struct net_device *dev) +static void __dev_addr_discard(struct dev_addr_list **list) +{ + struct dev_addr_list *tmp; + + while (*list != NULL) { + tmp = *list; + *list = tmp->next; + if (tmp->da_users > tmp->da_gusers) + printk("__dev_addr_discard: address leakage! " + "da_users=%d\n", tmp->da_users); + kfree(tmp); + } +} + +static void dev_addr_discard(struct net_device *dev) { netif_tx_lock_bh(dev); + __dev_addr_discard(&dev->uc_list); dev->uc_count = 0; + + __dev_addr_discard(&dev->mc_list); + dev->mc_count = 0; + netif_tx_unlock_bh(dev); } @@ -3739,8 +3744,7 @@ void unregister_netdevice(struct net_device *dev) /* * Flush the unicast and multicast chains */ - dev_unicast_discard(dev); - dev_mc_discard(dev); + dev_addr_discard(dev); if (dev->uninit) dev->uninit(dev); diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c index 235a2a8a0d05..99aece1aeccf 100644 --- a/net/core/dev_mcast.c +++ b/net/core/dev_mcast.c @@ -177,18 +177,6 @@ void dev_mc_unsync(struct net_device *to, struct net_device *from) } EXPORT_SYMBOL(dev_mc_unsync); -/* - * Discard multicast list when a device is downed - */ - -void dev_mc_discard(struct net_device *dev) -{ - netif_tx_lock_bh(dev); - __dev_addr_discard(&dev->mc_list); - dev->mc_count = 0; - netif_tx_unlock_bh(dev); -} - #ifdef CONFIG_PROC_FS static void *dev_mc_seq_start(struct seq_file *seq, loff_t *pos) { diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index cc84d8d8a3c7..590a767b029c 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -79,27 +79,27 @@ struct gen_estimator { - struct gen_estimator *next; + struct list_head list; struct gnet_stats_basic *bstats; struct gnet_stats_rate_est *rate_est; spinlock_t *stats_lock; - unsigned interval; int ewma_log; u64 last_bytes; u32 last_packets; u32 avpps; u32 avbps; + struct rcu_head e_rcu; }; struct gen_estimator_head { struct timer_list timer; - struct gen_estimator *list; + struct list_head list; }; static struct gen_estimator_head elist[EST_MAX_INTERVAL+1]; -/* Estimator array lock */ +/* Protects against NULL dereference */ static DEFINE_RWLOCK(est_lock); static void est_timer(unsigned long arg) @@ -107,13 +107,17 @@ static void est_timer(unsigned long arg) int idx = (int)arg; struct gen_estimator *e; - read_lock(&est_lock); - for (e = elist[idx].list; e; e = e->next) { + rcu_read_lock(); + list_for_each_entry_rcu(e, &elist[idx].list, list) { u64 nbytes; u32 npackets; u32 rate; spin_lock(e->stats_lock); + read_lock(&est_lock); + if (e->bstats == NULL) + goto skip; + nbytes = e->bstats->bytes; npackets = e->bstats->packets; rate = (nbytes - e->last_bytes)<<(7 - idx); @@ -125,12 +129,14 @@ static void est_timer(unsigned long arg) e->last_packets = npackets; e->avpps += ((long)rate - (long)e->avpps) >> e->ewma_log; e->rate_est->pps = (e->avpps+0x1FF)>>10; +skip: + read_unlock(&est_lock); spin_unlock(e->stats_lock); } - if (elist[idx].list != NULL) + if (!list_empty(&elist[idx].list)) mod_timer(&elist[idx].timer, jiffies + ((HZ<<idx)/4)); - read_unlock(&est_lock); + rcu_read_unlock(); } /** @@ -147,12 +153,17 @@ static void est_timer(unsigned long arg) * &rate_est with the statistics lock grabed during this period. * * Returns 0 on success or a negative error code. + * + * NOTE: Called under rtnl_mutex */ int gen_new_estimator(struct gnet_stats_basic *bstats, - struct gnet_stats_rate_est *rate_est, spinlock_t *stats_lock, struct rtattr *opt) + struct gnet_stats_rate_est *rate_est, + spinlock_t *stats_lock, + struct rtattr *opt) { struct gen_estimator *est; struct gnet_estimator *parm = RTA_DATA(opt); + int idx; if (RTA_PAYLOAD(opt) < sizeof(*parm)) return -EINVAL; @@ -164,7 +175,7 @@ int gen_new_estimator(struct gnet_stats_basic *bstats, if (est == NULL) return -ENOBUFS; - est->interval = parm->interval + 2; + idx = parm->interval + 2; est->bstats = bstats; est->rate_est = rate_est; est->stats_lock = stats_lock; @@ -174,20 +185,25 @@ int gen_new_estimator(struct gnet_stats_basic *bstats, est->last_packets = bstats->packets; est->avpps = rate_est->pps<<10; - est->next = elist[est->interval].list; - if (est->next == NULL) { - init_timer(&elist[est->interval].timer); - elist[est->interval].timer.data = est->interval; - elist[est->interval].timer.expires = jiffies + ((HZ<<est->interval)/4); - elist[est->interval].timer.function = est_timer; - add_timer(&elist[est->interval].timer); + if (!elist[idx].timer.function) { + INIT_LIST_HEAD(&elist[idx].list); + setup_timer(&elist[idx].timer, est_timer, idx); } - write_lock_bh(&est_lock); - elist[est->interval].list = est; - write_unlock_bh(&est_lock); + + if (list_empty(&elist[idx].list)) + mod_timer(&elist[idx].timer, jiffies + ((HZ<<idx)/4)); + + list_add_rcu(&est->list, &elist[idx].list); return 0; } +static void __gen_kill_estimator(struct rcu_head *head) +{ + struct gen_estimator *e = container_of(head, + struct gen_estimator, e_rcu); + kfree(e); +} + /** * gen_kill_estimator - remove a rate estimator * @bstats: basic statistics @@ -195,31 +211,32 @@ int gen_new_estimator(struct gnet_stats_basic *bstats, * * Removes the rate estimator specified by &bstats and &rate_est * and deletes the timer. + * + * NOTE: Called under rtnl_mutex */ void gen_kill_estimator(struct gnet_stats_basic *bstats, struct gnet_stats_rate_est *rate_est) { int idx; - struct gen_estimator *est, **pest; + struct gen_estimator *e, *n; for (idx=0; idx <= EST_MAX_INTERVAL; idx++) { - int killed = 0; - pest = &elist[idx].list; - while ((est=*pest) != NULL) { - if (est->rate_est != rate_est || est->bstats != bstats) { - pest = &est->next; + + /* Skip non initialized indexes */ + if (!elist[idx].timer.function) + continue; + + list_for_each_entry_safe(e, n, &elist[idx].list, list) { + if (e->rate_est != rate_est || e->bstats != bstats) continue; - } write_lock_bh(&est_lock); - *pest = est->next; + e->bstats = NULL; write_unlock_bh(&est_lock); - kfree(est); - killed++; + list_del_rcu(&e->list); + call_rcu(&e->e_rcu, __gen_kill_estimator); } - if (killed && elist[idx].list == NULL) - del_timer(&elist[idx].timer); } } diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 75215331b045..bca787fdbc51 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -3465,6 +3465,8 @@ static int pktgen_thread_worker(void *arg) set_current_state(TASK_INTERRUPTIBLE); + set_freezable(); + while (!kthread_should_stop()) { pkt_dev = next_to_run(t); diff --git a/net/core/sock.c b/net/core/sock.c index 091032a250c7..25d2557211c1 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -171,6 +171,19 @@ static const char *af_family_slock_key_strings[AF_MAX+1] = { "slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_IUCV" , "slock-AF_RXRPC" , "slock-AF_MAX" }; +static const char *af_family_clock_key_strings[AF_MAX+1] = { + "clock-AF_UNSPEC", "clock-AF_UNIX" , "clock-AF_INET" , + "clock-AF_AX25" , "clock-AF_IPX" , "clock-AF_APPLETALK", + "clock-AF_NETROM", "clock-AF_BRIDGE" , "clock-AF_ATMPVC" , + "clock-AF_X25" , "clock-AF_INET6" , "clock-AF_ROSE" , + "clock-AF_DECnet", "clock-AF_NETBEUI" , "clock-AF_SECURITY" , + "clock-AF_KEY" , "clock-AF_NETLINK" , "clock-AF_PACKET" , + "clock-AF_ASH" , "clock-AF_ECONET" , "clock-AF_ATMSVC" , + "clock-21" , "clock-AF_SNA" , "clock-AF_IRDA" , + "clock-AF_PPPOX" , "clock-AF_WANPIPE" , "clock-AF_LLC" , + "clock-27" , "clock-28" , "clock-29" , + "clock-AF_TIPC" , "clock-AF_BLUETOOTH", "clock-AF_MAX" +}; #endif /* @@ -941,8 +954,9 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority) rwlock_init(&newsk->sk_dst_lock); rwlock_init(&newsk->sk_callback_lock); - lockdep_set_class(&newsk->sk_callback_lock, - af_callback_keys + newsk->sk_family); + lockdep_set_class_and_name(&newsk->sk_callback_lock, + af_callback_keys + newsk->sk_family, + af_family_clock_key_strings[newsk->sk_family]); newsk->sk_dst_cache = NULL; newsk->sk_wmem_queued = 0; @@ -1530,8 +1544,9 @@ void sock_init_data(struct socket *sock, struct sock *sk) rwlock_init(&sk->sk_dst_lock); rwlock_init(&sk->sk_callback_lock); - lockdep_set_class(&sk->sk_callback_lock, - af_callback_keys + sk->sk_family); + lockdep_set_class_and_name(&sk->sk_callback_lock, + af_callback_keys + sk->sk_family, + af_family_clock_key_strings[sk->sk_family]); sk->sk_state_change = sock_def_wakeup; sk->sk_data_ready = sock_def_readable; diff --git a/net/dccp/probe.c b/net/dccp/probe.c index 43a3adb027e7..bae10b0f2fc3 100644 --- a/net/dccp/probe.c +++ b/net/dccp/probe.c @@ -112,7 +112,7 @@ static struct jprobe dccp_send_probe = { .kp = { .symbol_name = "dccp_sendmsg", }, - .entry = JPROBE_ENTRY(jdccp_sendmsg), + .entry = jdccp_sendmsg, }; static int dccpprobe_open(struct inode *inode, struct file *file) diff --git a/net/ieee80211/ieee80211_wx.c b/net/ieee80211/ieee80211_wx.c index 523a137d49dd..465b73d50532 100644 --- a/net/ieee80211/ieee80211_wx.c +++ b/net/ieee80211/ieee80211_wx.c @@ -90,14 +90,11 @@ static char *ieee80211_translate_scan(struct ieee80211_device *ieee, } /* Add channel and frequency */ + /* Note : userspace automatically computes channel using iwrange */ iwe.cmd = SIOCGIWFREQ; - iwe.u.freq.m = network->channel; - iwe.u.freq.e = 0; - iwe.u.freq.i = 0; - start = iwe_stream_add_event(start, stop, &iwe, IW_EV_FREQ_LEN); - iwe.u.freq.m = ieee80211_channel_to_freq(ieee, network->channel); iwe.u.freq.e = 6; + iwe.u.freq.i = 0; start = iwe_stream_add_event(start, stop, &iwe, IW_EV_FREQ_LEN); /* Add encryption capability */ diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c index 3da9d73d1b52..27c7918e442a 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c @@ -177,7 +177,7 @@ static int ct_open(struct inode *inode, struct file *file) struct ct_iter_state *st; int ret; - st = kmalloc(sizeof(struct ct_iter_state), GFP_KERNEL); + st = kzalloc(sizeof(struct ct_iter_state), GFP_KERNEL); if (st == NULL) return -ENOMEM; ret = seq_open(file, &ct_seq_ops); @@ -185,7 +185,6 @@ static int ct_open(struct inode *inode, struct file *file) goto out_free; seq = file->private_data; seq->private = st; - memset(st, 0, sizeof(struct ct_iter_state)); return ret; out_free: kfree(st); diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c index dd9ef65ad3ff..519de091a94d 100644 --- a/net/ipv4/tcp_bic.c +++ b/net/ipv4/tcp_bic.c @@ -137,7 +137,7 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd) } static void bictcp_cong_avoid(struct sock *sk, u32 ack, - u32 seq_rtt, u32 in_flight, int data_acked) + u32 in_flight, int data_acked) { struct tcp_sock *tp = tcp_sk(sk); struct bictcp *ca = inet_csk_ca(sk); diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index 1260e52ad772..55fca1820c34 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c @@ -324,8 +324,7 @@ EXPORT_SYMBOL_GPL(tcp_slow_start); /* This is Jacobson's slow start and congestion avoidance. * SIGCOMM '88, p. 328. */ -void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 rtt, u32 in_flight, - int flag) +void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int flag) { struct tcp_sock *tp = tcp_sk(sk); diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c index ebfaac2f9f46..d17da30d82d6 100644 --- a/net/ipv4/tcp_cubic.c +++ b/net/ipv4/tcp_cubic.c @@ -270,7 +270,7 @@ static inline void measure_delay(struct sock *sk) } static void bictcp_cong_avoid(struct sock *sk, u32 ack, - u32 seq_rtt, u32 in_flight, int data_acked) + u32 in_flight, int data_acked) { struct tcp_sock *tp = tcp_sk(sk); struct bictcp *ca = inet_csk_ca(sk); diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c index 43d624e5043c..14a073d8b60f 100644 --- a/net/ipv4/tcp_highspeed.c +++ b/net/ipv4/tcp_highspeed.c @@ -109,7 +109,7 @@ static void hstcp_init(struct sock *sk) tp->snd_cwnd_clamp = min_t(u32, tp->snd_cwnd_clamp, 0xffffffff/128); } -static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 rtt, +static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 in_flight, int data_acked) { struct tcp_sock *tp = tcp_sk(sk); diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c index 4ba4a7ae0a85..632c05a75883 100644 --- a/net/ipv4/tcp_htcp.c +++ b/net/ipv4/tcp_htcp.c @@ -225,7 +225,7 @@ static u32 htcp_recalc_ssthresh(struct sock *sk) return max((tp->snd_cwnd * ca->beta) >> 7, 2U); } -static void htcp_cong_avoid(struct sock *sk, u32 ack, u32 rtt, +static void htcp_cong_avoid(struct sock *sk, u32 ack, s32 rtt, u32 in_flight, int data_acked) { struct tcp_sock *tp = tcp_sk(sk); diff --git a/net/ipv4/tcp_hybla.c b/net/ipv4/tcp_hybla.c index e5be35117223..b3e55cf56171 100644 --- a/net/ipv4/tcp_hybla.c +++ b/net/ipv4/tcp_hybla.c @@ -85,7 +85,7 @@ static inline u32 hybla_fraction(u32 odds) * o Give cwnd a new value based on the model proposed * o remember increments <1 */ -static void hybla_cong_avoid(struct sock *sk, u32 ack, u32 rtt, +static void hybla_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int flag) { struct tcp_sock *tp = tcp_sk(sk); @@ -103,7 +103,7 @@ static void hybla_cong_avoid(struct sock *sk, u32 ack, u32 rtt, return; if (!ca->hybla_en) - return tcp_reno_cong_avoid(sk, ack, rtt, in_flight, flag); + return tcp_reno_cong_avoid(sk, ack, in_flight, flag); if (ca->rho == 0) hybla_recalc_param(sk); diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c index b2b2256d3b84..cc5de6f69d46 100644 --- a/net/ipv4/tcp_illinois.c +++ b/net/ipv4/tcp_illinois.c @@ -258,7 +258,7 @@ static void tcp_illinois_state(struct sock *sk, u8 new_state) /* * Increase window in response to successful acknowledgment. */ -static void tcp_illinois_cong_avoid(struct sock *sk, u32 ack, u32 rtt, +static void tcp_illinois_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int flag) { struct tcp_sock *tp = tcp_sk(sk); diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 4e5884ac8f29..fec8a7a4dbaf 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2323,11 +2323,11 @@ static inline void tcp_ack_update_rtt(struct sock *sk, const int flag, tcp_ack_no_tstamp(sk, seq_rtt, flag); } -static void tcp_cong_avoid(struct sock *sk, u32 ack, u32 rtt, +static void tcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int good) { const struct inet_connection_sock *icsk = inet_csk(sk); - icsk->icsk_ca_ops->cong_avoid(sk, ack, rtt, in_flight, good); + icsk->icsk_ca_ops->cong_avoid(sk, ack, in_flight, good); tcp_sk(sk)->snd_cwnd_stamp = tcp_time_stamp; } @@ -2826,11 +2826,11 @@ static int tcp_ack(struct sock *sk, struct sk_buff *skb, int flag) /* Advance CWND, if state allows this. */ if ((flag & FLAG_DATA_ACKED) && !frto_cwnd && tcp_may_raise_cwnd(sk, flag)) - tcp_cong_avoid(sk, ack, seq_rtt, prior_in_flight, 0); + tcp_cong_avoid(sk, ack, prior_in_flight, 0); tcp_fastretrans_alert(sk, prior_snd_una, prior_packets, flag); } else { if ((flag & FLAG_DATA_ACKED) && !frto_cwnd) - tcp_cong_avoid(sk, ack, seq_rtt, prior_in_flight, 1); + tcp_cong_avoid(sk, ack, prior_in_flight, 1); } if ((flag & FLAG_FORWARD_PROGRESS) || !(flag&FLAG_NOT_DUP)) diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c index e49836ce012e..80e140e3ec2d 100644 --- a/net/ipv4/tcp_lp.c +++ b/net/ipv4/tcp_lp.c @@ -115,13 +115,12 @@ static void tcp_lp_init(struct sock *sk) * Will only call newReno CA when away from inference. * From TCP-LP's paper, this will be handled in additive increasement. */ -static void tcp_lp_cong_avoid(struct sock *sk, u32 ack, u32 rtt, u32 in_flight, - int flag) +static void tcp_lp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int flag) { struct lp *lp = inet_csk_ca(sk); if (!(lp->flag & LP_WITHIN_INF)) - tcp_reno_cong_avoid(sk, ack, rtt, in_flight, flag); + tcp_reno_cong_avoid(sk, ack, in_flight, flag); } /** diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c index f37d5928921a..b76398d1b454 100644 --- a/net/ipv4/tcp_probe.c +++ b/net/ipv4/tcp_probe.c @@ -130,7 +130,7 @@ static struct jprobe tcp_jprobe = { .kp = { .symbol_name = "tcp_rcv_established", }, - .entry = JPROBE_ENTRY(jtcp_rcv_established), + .entry = jtcp_rcv_established, }; static int tcpprobe_open(struct inode * inode, struct file * file) diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c index 4624501e9680..be27a33a1c68 100644 --- a/net/ipv4/tcp_scalable.c +++ b/net/ipv4/tcp_scalable.c @@ -15,7 +15,7 @@ #define TCP_SCALABLE_AI_CNT 50U #define TCP_SCALABLE_MD_SCALE 3 -static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 rtt, +static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 in_flight, int flag) { struct tcp_sock *tp = tcp_sk(sk); diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c index e218a51ceced..914e0307f7af 100644 --- a/net/ipv4/tcp_vegas.c +++ b/net/ipv4/tcp_vegas.c @@ -163,13 +163,13 @@ void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event) EXPORT_SYMBOL_GPL(tcp_vegas_cwnd_event); static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, - u32 seq_rtt, u32 in_flight, int flag) + u32 in_flight, int flag) { struct tcp_sock *tp = tcp_sk(sk); struct vegas *vegas = inet_csk_ca(sk); if (!vegas->doing_vegas_now) - return tcp_reno_cong_avoid(sk, ack, seq_rtt, in_flight, flag); + return tcp_reno_cong_avoid(sk, ack, in_flight, flag); /* The key players are v_beg_snd_una and v_beg_snd_nxt. * @@ -228,7 +228,7 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, /* We don't have enough RTT samples to do the Vegas * calculation, so we'll behave like Reno. */ - tcp_reno_cong_avoid(sk, ack, seq_rtt, in_flight, flag); + tcp_reno_cong_avoid(sk, ack, in_flight, flag); } else { u32 rtt, target_cwnd, diff; diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c index ec854cc5fad5..7a55ddf86032 100644 --- a/net/ipv4/tcp_veno.c +++ b/net/ipv4/tcp_veno.c @@ -115,13 +115,13 @@ static void tcp_veno_cwnd_event(struct sock *sk, enum tcp_ca_event event) } static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, - u32 seq_rtt, u32 in_flight, int flag) + u32 in_flight, int flag) { struct tcp_sock *tp = tcp_sk(sk); struct veno *veno = inet_csk_ca(sk); if (!veno->doing_veno_now) - return tcp_reno_cong_avoid(sk, ack, seq_rtt, in_flight, flag); + return tcp_reno_cong_avoid(sk, ack, in_flight, flag); /* limited by applications */ if (!tcp_is_cwnd_limited(sk, in_flight)) @@ -132,7 +132,7 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, /* We don't have enough rtt samples to do the Veno * calculation, so we'll behave like Reno. */ - tcp_reno_cong_avoid(sk, ack, seq_rtt, in_flight, flag); + tcp_reno_cong_avoid(sk, ack, in_flight, flag); } else { u32 rtt, target_cwnd; diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c index 545ed237ab53..c04b7c6ec702 100644 --- a/net/ipv4/tcp_yeah.c +++ b/net/ipv4/tcp_yeah.c @@ -70,7 +70,7 @@ static void tcp_yeah_pkts_acked(struct sock *sk, u32 pkts_acked, ktime_t last) } static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, - u32 seq_rtt, u32 in_flight, int flag) + u32 in_flight, int flag) { struct tcp_sock *tp = tcp_sk(sk); struct yeah *yeah = inet_csk_ca(sk); diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index dcd7e325b283..4c670cf6aefa 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -2567,7 +2567,7 @@ int __init irsock_init(void) * Remove IrDA protocol * */ -void __exit irsock_cleanup(void) +void irsock_cleanup(void) { sock_unregister(PF_IRDA); proto_unregister(&irda_proto); diff --git a/net/irda/irda_device.c b/net/irda/irda_device.c index 7b5def1ea633..435b563d29a6 100644 --- a/net/irda/irda_device.c +++ b/net/irda/irda_device.c @@ -95,14 +95,14 @@ int __init irda_device_init( void) return 0; } -static void __exit leftover_dongle(void *arg) +static void leftover_dongle(void *arg) { struct dongle_reg *reg = arg; IRDA_WARNING("IrDA: Dongle type %x not unregistered\n", reg->type); } -void __exit irda_device_cleanup(void) +void irda_device_cleanup(void) { IRDA_DEBUG(4, "%s()\n", __FUNCTION__); diff --git a/net/irda/iriap.c b/net/irda/iriap.c index 774eb707940c..ee3889fa49ab 100644 --- a/net/irda/iriap.c +++ b/net/irda/iriap.c @@ -153,7 +153,7 @@ int __init iriap_init(void) * Initializes the IrIAP layer, called by the module cleanup code in * irmod.c */ -void __exit iriap_cleanup(void) +void iriap_cleanup(void) { irlmp_unregister_service(service_handle); diff --git a/net/irda/irias_object.c b/net/irda/irias_object.c index 4adaae242b9e..cf302457097b 100644 --- a/net/irda/irias_object.c +++ b/net/irda/irias_object.c @@ -36,39 +36,6 @@ hashbin_t *irias_objects; */ struct ias_value irias_missing = { IAS_MISSING, 0, 0, 0, {0}}; -/* - * Function strndup (str, max) - * - * My own kernel version of strndup! - * - * Faster, check boundary... Jean II - */ -static char *strndup(char *str, size_t max) -{ - char *new_str; - int len; - - /* Check string */ - if (str == NULL) - return NULL; - /* Check length, truncate */ - len = strlen(str); - if(len > max) - len = max; - - /* Allocate new string */ - new_str = kmalloc(len + 1, GFP_ATOMIC); - if (new_str == NULL) { - IRDA_WARNING("%s: Unable to kmalloc!\n", __FUNCTION__); - return NULL; - } - - /* Copy and truncate */ - memcpy(new_str, str, len); - new_str[len] = '\0'; - - return new_str; -} /* * Function ias_new_object (name, id) @@ -90,7 +57,7 @@ struct ias_object *irias_new_object( char *name, int id) } obj->magic = IAS_OBJECT_MAGIC; - obj->name = strndup(name, IAS_MAX_CLASSNAME); + obj->name = kstrndup(name, IAS_MAX_CLASSNAME, GFP_ATOMIC); if (!obj->name) { IRDA_WARNING("%s(), Unable to allocate name!\n", __FUNCTION__); @@ -360,7 +327,7 @@ void irias_add_integer_attrib(struct ias_object *obj, char *name, int value, } attrib->magic = IAS_ATTRIB_MAGIC; - attrib->name = strndup(name, IAS_MAX_ATTRIBNAME); + attrib->name = kstrndup(name, IAS_MAX_ATTRIBNAME, GFP_ATOMIC); /* Insert value */ attrib->value = irias_new_integer_value(value); @@ -404,7 +371,7 @@ void irias_add_octseq_attrib(struct ias_object *obj, char *name, __u8 *octets, } attrib->magic = IAS_ATTRIB_MAGIC; - attrib->name = strndup(name, IAS_MAX_ATTRIBNAME); + attrib->name = kstrndup(name, IAS_MAX_ATTRIBNAME, GFP_ATOMIC); attrib->value = irias_new_octseq_value( octets, len); if (!attrib->name || !attrib->value) { @@ -446,7 +413,7 @@ void irias_add_string_attrib(struct ias_object *obj, char *name, char *value, } attrib->magic = IAS_ATTRIB_MAGIC; - attrib->name = strndup(name, IAS_MAX_ATTRIBNAME); + attrib->name = kstrndup(name, IAS_MAX_ATTRIBNAME, GFP_ATOMIC); attrib->value = irias_new_string_value(value); if (!attrib->name || !attrib->value) { @@ -506,7 +473,7 @@ struct ias_value *irias_new_string_value(char *string) value->type = IAS_STRING; value->charset = CS_ASCII; - value->t.string = strndup(string, IAS_MAX_STRING); + value->t.string = kstrndup(string, IAS_MAX_STRING, GFP_ATOMIC); if (!value->t.string) { IRDA_WARNING("%s: Unable to kmalloc!\n", __FUNCTION__); kfree(value); diff --git a/net/irda/irlap.c b/net/irda/irlap.c index 2fc9f518f89d..3d76aafdb2e5 100644 --- a/net/irda/irlap.c +++ b/net/irda/irlap.c @@ -95,7 +95,7 @@ int __init irlap_init(void) return 0; } -void __exit irlap_cleanup(void) +void irlap_cleanup(void) { IRDA_ASSERT(irlap != NULL, return;); diff --git a/net/irda/irlmp.c b/net/irda/irlmp.c index 24a5e3f23778..7efa930ed684 100644 --- a/net/irda/irlmp.c +++ b/net/irda/irlmp.c @@ -116,7 +116,7 @@ int __init irlmp_init(void) * Remove IrLMP layer * */ -void __exit irlmp_cleanup(void) +void irlmp_cleanup(void) { /* Check for main structure */ IRDA_ASSERT(irlmp != NULL, return;); diff --git a/net/irda/irproc.c b/net/irda/irproc.c index d6f9aba5b9dc..181cb51b48a8 100644 --- a/net/irda/irproc.c +++ b/net/irda/irproc.c @@ -84,7 +84,7 @@ void __init irda_proc_register(void) * Unregister irda entry in /proc file system * */ -void __exit irda_proc_unregister(void) +void irda_proc_unregister(void) { int i; diff --git a/net/irda/irsysctl.c b/net/irda/irsysctl.c index 2e968e7d8fea..957e04feb0f7 100644 --- a/net/irda/irsysctl.c +++ b/net/irda/irsysctl.c @@ -287,7 +287,7 @@ int __init irda_sysctl_register(void) * Unregister our sysctl interface * */ -void __exit irda_sysctl_unregister(void) +void irda_sysctl_unregister(void) { unregister_sysctl_table(irda_table_header); } diff --git a/net/irda/irttp.c b/net/irda/irttp.c index 7f50832a2cd5..3d7ab03fb131 100644 --- a/net/irda/irttp.c +++ b/net/irda/irttp.c @@ -109,7 +109,7 @@ int __init irttp_init(void) * Called by module destruction/cleanup code * */ -void __exit irttp_cleanup(void) +void irttp_cleanup(void) { /* Check for main structure */ IRDA_ASSERT(irttp->magic == TTP_MAGIC, return;); diff --git a/net/mac80211/ieee80211_rate.c b/net/mac80211/ieee80211_rate.c index 16e850864b8a..2118de04fc35 100644 --- a/net/mac80211/ieee80211_rate.c +++ b/net/mac80211/ieee80211_rate.c @@ -24,11 +24,10 @@ int ieee80211_rate_control_register(struct rate_control_ops *ops) { struct rate_control_alg *alg; - alg = kmalloc(sizeof(*alg), GFP_KERNEL); + alg = kzalloc(sizeof(*alg), GFP_KERNEL); if (alg == NULL) { return -ENOMEM; } - memset(alg, 0, sizeof(*alg)); alg->ops = ops; mutex_lock(&rate_ctrl_mutex); diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c index ba2bf8f0a347..22b11786327a 100644 --- a/net/mac80211/ieee80211_sta.c +++ b/net/mac80211/ieee80211_sta.c @@ -1327,10 +1327,9 @@ ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid) struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sta_bss *bss; - bss = kmalloc(sizeof(*bss), GFP_ATOMIC); + bss = kzalloc(sizeof(*bss), GFP_ATOMIC); if (!bss) return NULL; - memset(bss, 0, sizeof(*bss)); atomic_inc(&bss->users); atomic_inc(&bss->users); memcpy(bss->bssid, bssid, ETH_ALEN); diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 3ac39f1ec775..3599770a2473 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -436,6 +436,7 @@ config NETFILTER_XT_MATCH_CONNBYTES config NETFILTER_XT_MATCH_CONNLIMIT tristate '"connlimit" match support"' depends on NETFILTER_XTABLES + depends on NF_CONNTRACK ---help--- This match allows you to match against the number of parallel connections to a server per client IP address (or address block). diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index ffb6ff8c3528..fc847cc63be6 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -198,7 +198,7 @@ static int ct_open(struct inode *inode, struct file *file) struct ct_iter_state *st; int ret; - st = kmalloc(sizeof(struct ct_iter_state), GFP_KERNEL); + st = kzalloc(sizeof(struct ct_iter_state), GFP_KERNEL); if (st == NULL) return -ENOMEM; ret = seq_open(file, &ct_seq_ops); @@ -206,7 +206,6 @@ static int ct_open(struct inode *inode, struct file *file) goto out_free; seq = file->private_data; seq->private = st; - memset(st, 0, sizeof(struct ct_iter_state)); return ret; out_free: kfree(st); diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index a3c8e692f493..641cfbc278d8 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1012,13 +1012,14 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; struct netlink_sock *nlk = nlk_sk(sk); - int val = 0, err; + unsigned int val = 0; + int err; if (level != SOL_NETLINK) return -ENOPROTOOPT; if (optlen >= sizeof(int) && - get_user(val, (int __user *)optval)) + get_user(val, (unsigned int __user *)optval)) return -EFAULT; switch (optname) { diff --git a/net/sched/Kconfig b/net/sched/Kconfig index d3f7c3f9407a..8a74cac0be8c 100644 --- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -97,7 +97,7 @@ config NET_SCH_ATM select classes of this queuing discipline. Each class maps the flow(s) it is handling to a given virtual circuit. - See the top of <file:net/sched/sch_atm.c>) for more details. + See the top of <file:net/sched/sch_atm.c> for more details. To compile this code as a module, choose M here: the module will be called sch_atm. @@ -137,7 +137,7 @@ config NET_SCH_SFQ tristate "Stochastic Fairness Queueing (SFQ)" ---help--- Say Y here if you want to use the Stochastic Fairness Queueing (SFQ) - packet scheduling algorithm . + packet scheduling algorithm. See the top of <file:net/sched/sch_sfq.c> for more details. @@ -306,7 +306,7 @@ config NET_CLS_RSVP6 is important for real time data such as streaming sound or video. Say Y here if you want to be able to classify outgoing packets based - on their RSVP requests and you are using the IPv6. + on their RSVP requests and you are using the IPv6 protocol. To compile this code as a module, choose M here: the module will be called cls_rsvp6. diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c index 417ec8fb7f1a..ddc4f2c54379 100644 --- a/net/sched/sch_atm.c +++ b/net/sched/sch_atm.c @@ -292,13 +292,12 @@ static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent, } } DPRINTK("atm_tc_change: new id %x\n", classid); - flow = kmalloc(sizeof(struct atm_flow_data) + hdr_len, GFP_KERNEL); + flow = kzalloc(sizeof(struct atm_flow_data) + hdr_len, GFP_KERNEL); DPRINTK("atm_tc_change: flow %p\n", flow); if (!flow) { error = -ENOBUFS; goto err_out; } - memset(flow, 0, sizeof(*flow)); flow->filter_list = NULL; if (!(flow->q = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops, classid))) flow->q = &noop_qdisc; diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index aa55d0a03e6f..29a8ecc60928 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -543,17 +543,18 @@ rpcauth_uptodatecred(struct rpc_task *task) test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) != 0; } - -static struct shrinker *rpc_cred_shrinker; +static struct shrinker rpc_cred_shrinker = { + .shrink = rpcauth_cache_shrinker, + .seeks = DEFAULT_SEEKS, +}; void __init rpcauth_init_module(void) { rpc_init_authunix(); - rpc_cred_shrinker = set_shrinker(DEFAULT_SEEKS, rpcauth_cache_shrinker); + register_shrinker(&rpc_cred_shrinker); } void __exit rpcauth_remove_module(void) { - if (rpc_cred_shrinker != NULL) - remove_shrinker(rpc_cred_shrinker); + unregister_shrinker(&rpc_cred_shrinker); } diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c index 71b9daefdff3..9843eacef11d 100644 --- a/net/sunrpc/auth_gss/gss_krb5_mech.c +++ b/net/sunrpc/auth_gss/gss_krb5_mech.c @@ -231,6 +231,7 @@ static struct pf_desc gss_kerberos_pfs[] = { static struct gss_api_mech gss_kerberos_mech = { .gm_name = "krb5", .gm_owner = THIS_MODULE, + .gm_oid = {9, (void *)"\x2a\x86\x48\x86\xf7\x12\x01\x02\x02"}, .gm_ops = &gss_kerberos_ops, .gm_pf_num = ARRAY_SIZE(gss_kerberos_pfs), .gm_pfs = gss_kerberos_pfs, diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c index 26872517ccf3..61801a069ff0 100644 --- a/net/sunrpc/auth_gss/gss_mech_switch.c +++ b/net/sunrpc/auth_gss/gss_mech_switch.c @@ -194,6 +194,20 @@ gss_mech_get_by_pseudoflavor(u32 pseudoflavor) EXPORT_SYMBOL(gss_mech_get_by_pseudoflavor); u32 +gss_svc_to_pseudoflavor(struct gss_api_mech *gm, u32 service) +{ + int i; + + for (i = 0; i < gm->gm_pf_num; i++) { + if (gm->gm_pfs[i].service == service) { + return gm->gm_pfs[i].pseudoflavor; + } + } + return RPC_AUTH_MAXFLAVOR; /* illegal value */ +} +EXPORT_SYMBOL(gss_svc_to_pseudoflavor); + +u32 gss_pseudoflavor_to_service(struct gss_api_mech *gm, u32 pseudoflavor) { int i; diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c index 577d590e755f..5deb4b6e4514 100644 --- a/net/sunrpc/auth_gss/gss_spkm3_mech.c +++ b/net/sunrpc/auth_gss/gss_spkm3_mech.c @@ -217,6 +217,7 @@ static struct pf_desc gss_spkm3_pfs[] = { static struct gss_api_mech gss_spkm3_mech = { .gm_name = "spkm3", .gm_owner = THIS_MODULE, + .gm_oid = {7, "\053\006\001\005\005\001\003"}, .gm_ops = &gss_spkm3_ops, .gm_pf_num = ARRAY_SIZE(gss_spkm3_pfs), .gm_pfs = gss_spkm3_pfs, diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index c094583386fd..490697542fc2 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -743,6 +743,15 @@ find_gss_auth_domain(struct gss_ctx *ctx, u32 svc) static struct auth_ops svcauthops_gss; +u32 svcauth_gss_flavor(struct auth_domain *dom) +{ + struct gss_domain *gd = container_of(dom, struct gss_domain, h); + + return gd->pseudoflavor; +} + +EXPORT_SYMBOL(svcauth_gss_flavor); + int svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name) { @@ -913,10 +922,23 @@ svcauth_gss_set_client(struct svc_rqst *rqstp) struct gss_svc_data *svcdata = rqstp->rq_auth_data; struct rsc *rsci = svcdata->rsci; struct rpc_gss_wire_cred *gc = &svcdata->clcred; + int stat; - rqstp->rq_client = find_gss_auth_domain(rsci->mechctx, gc->gc_svc); - if (rqstp->rq_client == NULL) + /* + * A gss export can be specified either by: + * export *(sec=krb5,rw) + * or by + * export gss/krb5(rw) + * The latter is deprecated; but for backwards compatibility reasons + * the nfsd code will still fall back on trying it if the former + * doesn't work; so we try to make both available to nfsd, below. + */ + rqstp->rq_gssclient = find_gss_auth_domain(rsci->mechctx, gc->gc_svc); + if (rqstp->rq_gssclient == NULL) return SVC_DENIED; + stat = svcauth_unix_set_client(rqstp); + if (stat == SVC_DROP) + return stat; return SVC_OK; } @@ -1088,7 +1110,6 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) svc_putnl(resv, GSS_SEQ_WIN); if (svc_safe_putnetobj(resv, &rsip->out_token)) goto drop; - rqstp->rq_client = NULL; } goto complete; case RPC_GSS_PROC_DESTROY: @@ -1131,6 +1152,8 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) } svcdata->rsci = rsci; cache_get(&rsci->h); + rqstp->rq_flavor = gss_svc_to_pseudoflavor( + rsci->mechctx->mech_type, gc->gc_svc); ret = SVC_OK; goto out; } @@ -1317,6 +1340,9 @@ out_err: if (rqstp->rq_client) auth_domain_put(rqstp->rq_client); rqstp->rq_client = NULL; + if (rqstp->rq_gssclient) + auth_domain_put(rqstp->rq_gssclient); + rqstp->rq_gssclient = NULL; if (rqstp->rq_cred.cr_group_info) put_group_info(rqstp->rq_cred.cr_group_info); rqstp->rq_cred.cr_group_info = NULL; diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index e787b6a43eee..5b2b6fb244f2 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -460,21 +460,19 @@ static struct dentry_operations rpc_dentry_operations = { static int rpc_lookup_parent(char *path, struct nameidata *nd) { + struct vfsmount *mnt; + if (path[0] == '\0') return -ENOENT; - nd->mnt = rpc_get_mount(); - if (IS_ERR(nd->mnt)) { + + mnt = rpc_get_mount(); + if (IS_ERR(mnt)) { printk(KERN_WARNING "%s: %s failed to mount " "pseudofilesystem \n", __FILE__, __FUNCTION__); - return PTR_ERR(nd->mnt); + return PTR_ERR(mnt); } - mntget(nd->mnt); - nd->dentry = dget(rpc_mount->mnt_root); - nd->last_type = LAST_ROOT; - nd->flags = LOOKUP_PARENT; - nd->depth = 0; - if (path_walk(path, nd)) { + if (vfs_path_lookup(mnt->mnt_root, mnt, path, LOOKUP_PARENT, nd)) { printk(KERN_WARNING "%s: %s failed to find path %s\n", __FILE__, __FUNCTION__, path); rpc_put_mount(); diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c index 07dcd20cbee4..411479411b21 100644 --- a/net/sunrpc/svcauth_unix.c +++ b/net/sunrpc/svcauth_unix.c @@ -5,6 +5,7 @@ #include <linux/sunrpc/xdr.h> #include <linux/sunrpc/svcsock.h> #include <linux/sunrpc/svcauth.h> +#include <linux/sunrpc/gss_api.h> #include <linux/err.h> #include <linux/seq_file.h> #include <linux/hash.h> @@ -637,7 +638,7 @@ static int unix_gid_find(uid_t uid, struct group_info **gip, } } -static int +int svcauth_unix_set_client(struct svc_rqst *rqstp) { struct sockaddr_in *sin = svc_addr_in(rqstp); @@ -672,6 +673,8 @@ svcauth_unix_set_client(struct svc_rqst *rqstp) return SVC_OK; } +EXPORT_SYMBOL(svcauth_unix_set_client); + static int svcauth_null_accept(struct svc_rqst *rqstp, __be32 *authp) { @@ -707,6 +710,7 @@ svcauth_null_accept(struct svc_rqst *rqstp, __be32 *authp) svc_putnl(resv, RPC_AUTH_NULL); svc_putnl(resv, 0); + rqstp->rq_flavor = RPC_AUTH_NULL; return SVC_OK; } @@ -784,6 +788,7 @@ svcauth_unix_accept(struct svc_rqst *rqstp, __be32 *authp) svc_putnl(resv, RPC_AUTH_NULL); svc_putnl(resv, 0); + rqstp->rq_flavor = RPC_AUTH_UNIX; return SVC_OK; badcred: diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 9dfc9127acdd..d8473eefcd23 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -1052,12 +1052,11 @@ int tipc_nametbl_init(void) { int array_size = sizeof(struct hlist_head) * tipc_nametbl_size; - table.types = kmalloc(array_size, GFP_ATOMIC); + table.types = kzalloc(array_size, GFP_ATOMIC); if (!table.types) return -ENOMEM; write_lock_bh(&tipc_nametbl_lock); - memset(table.types, 0, array_size); table.local_publ_count = 0; write_unlock_bh(&tipc_nametbl_lock); return 0; diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 157bfbd250ba..b48f06fc9fd9 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2141,7 +2141,7 @@ int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *first, if (last == first) break; - last = last->u.next; + last = (struct xfrm_dst *)last->u.dst.next; last->child_mtu_cached = mtu; } diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 25e20a27fc59..73751ab6ec0c 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -9,7 +9,7 @@ use strict; my $P = $0; $P =~ s@.*/@@g; -my $V = '0.07'; +my $V = '0.08'; use Getopt::Long qw(:config no_auto_abbrev); @@ -47,16 +47,14 @@ my $removal = 'Documentation/feature-removal-schedule.txt'; if ($tree && -f $removal) { open(REMOVE, "<$removal") || die "$P: $removal: open failed - $!\n"; while (<REMOVE>) { - if (/^Files:\s+(.*\S)/) { - for my $file (split(/[, ]+/, $1)) { - if ($file =~ m@include/(.*)@) { + if (/^Check:\s+(.*\S)/) { + for my $entry (split(/[, ]+/, $1)) { + if ($entry =~ m@include/(.*)@) { push(@dep_includes, $1); - } - } - } elsif (/^Funcs:\s+(.*\S)/) { - for my $func (split(/[, ]+/, $1)) { - push(@dep_functions, $func); + } elsif ($entry !~ m@/@) { + push(@dep_functions, $entry); + } } } } @@ -153,7 +151,7 @@ sub sanitise_line { } sub ctx_block_get { - my ($linenr, $remain, $outer, $open, $close) = @_; + my ($linenr, $remain, $outer, $open, $close, $off) = @_; my $line; my $start = $linenr - 1; my $blk = ''; @@ -161,38 +159,58 @@ sub ctx_block_get { my @c; my @res = (); + my $level = 0; for ($line = $start; $remain > 0; $line++) { next if ($rawlines[$line] =~ /^-/); $remain--; $blk .= $rawlines[$line]; + foreach my $c (split(//, $rawlines[$line])) { + ##print "C<$c>L<$level><$open$close>O<$off>\n"; + if ($off > 0) { + $off--; + next; + } - @o = ($blk =~ /$open/g); - @c = ($blk =~ /$close/g); + if ($c eq $close && $level > 0) { + $level--; + last if ($level == 0); + } elsif ($c eq $open) { + $level++; + } + } - if (!$outer || (scalar(@o) - scalar(@c)) == 1) { + if (!$outer || $level <= 1) { push(@res, $rawlines[$line]); } - last if (scalar(@o) == scalar(@c)); + last if ($level == 0); } - return @res; + return ($level, @res); } sub ctx_block_outer { my ($linenr, $remain) = @_; - return ctx_block_get($linenr, $remain, 1, '\{', '\}'); + my ($level, @r) = ctx_block_get($linenr, $remain, 1, '{', '}', 0); + return @r; } sub ctx_block { my ($linenr, $remain) = @_; - return ctx_block_get($linenr, $remain, 0, '\{', '\}'); + my ($level, @r) = ctx_block_get($linenr, $remain, 0, '{', '}', 0); + return @r; } sub ctx_statement { + my ($linenr, $remain, $off) = @_; + + my ($level, @r) = ctx_block_get($linenr, $remain, 0, '(', ')', $off); + return @r; +} +sub ctx_block_level { my ($linenr, $remain) = @_; - return ctx_block_get($linenr, $remain, 0, '\(', '\)'); + return ctx_block_get($linenr, $remain, 0, '{', '}', 0); } sub ctx_locate_comment { @@ -246,16 +264,23 @@ sub cat_vet { return $vet; } +my @report = (); +sub report { + push(@report, $_[0]); +} +sub report_dump { + @report; +} sub ERROR { - print "ERROR: $_[0]\n"; + report("ERROR: $_[0]\n"); our $clean = 0; } sub WARN { - print "WARNING: $_[0]\n"; + report("WARNING: $_[0]\n"); our $clean = 0; } sub CHK { - print "CHECK: $_[0]\n"; + report("CHECK: $_[0]\n"); our $clean = 0; } @@ -318,7 +343,10 @@ sub process { (?:\s*\*+\s*const|\s*\*+)? }x; my $Declare = qr{(?:$Storage\s+)?$Type}; - my $Attribute = qr{__read_mostly|__init|__initdata}; + my $Attribute = qr{const|__read_mostly|__init|__initdata|__meminit}; + + my $Member = qr{->$Ident|\.$Ident|\[[^]]*\]}; + my $Lval = qr{$Ident(?:$Member)*}; # Pre-scan the patch looking for any __setup documentation. my @setup_docs = (); @@ -509,7 +537,7 @@ sub process { # if/while/etc brace do not go on next line, unless defining a do while loop, # or if that brace on the next line is for something else if ($line =~ /\b(?:(if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.#/) { - my @ctx = ctx_statement($linenr, $realcnt); + my @ctx = ctx_statement($linenr, $realcnt, 0); my $ctx_ln = $linenr + $#ctx + 1; my $ctx_cnt = $realcnt - $#ctx - 1; my $ctx = join("\n", @ctx); @@ -521,7 +549,7 @@ sub process { ##warn "line<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>"; if ($ctx !~ /{\s*/ && $ctx_cnt > 0 && $lines[$ctx_ln - 1] =~ /^\+\s*{/) { - ERROR("That { should be on the previous line\n" . + ERROR("That open brace { should be on the previous line\n" . "$here\n$ctx\n$lines[$ctx_ln - 1]"); } } @@ -535,6 +563,12 @@ sub process { next; } +# check for initialisation to aggregates open brace on the next line + if ($prevline =~ /$Declare\s*$Ident\s*=\s*$/ && + $line =~ /^.\s*{/) { + ERROR("That open brace { should be on the previous line\n" . $hereprev); + } + # # Checks which are anchored on the added line. # @@ -570,8 +604,13 @@ sub process { } } +# check for external initialisers. + if ($line =~ /^.$Type\s*$Ident\s*=\s*(0|NULL);/) { + ERROR("do not initialise externals to 0 or NULL\n" . + $herecurr); + } # check for static initialisers. - if ($line=~/\s*static\s.*=\s+(0|NULL);/) { + if ($line =~ /\s*static\s.*=\s*(0|NULL);/) { ERROR("do not initialise statics to 0 or NULL\n" . $herecurr); } @@ -593,11 +632,11 @@ sub process { ERROR("\"(foo $1 )\" should be \"(foo $1)\"\n" . $herecurr); - } elsif ($line =~ m{$NonptrType(\*+)(?:\s+const)?\s+[A-Za-z\d_]+}) { + } elsif ($line =~ m{$NonptrType(\*+)(?:\s+$Attribute)?\s+[A-Za-z\d_]+}) { ERROR("\"foo$1 bar\" should be \"foo $1bar\"\n" . $herecurr); - } elsif ($line =~ m{$NonptrType\s+(\*+)(?!\s+const)\s+[A-Za-z\d_]+}) { + } elsif ($line =~ m{$NonptrType\s+(\*+)(?!\s+$Attribute)\s+[A-Za-z\d_]+}) { ERROR("\"foo $1 bar\" should be \"foo $1bar\"\n" . $herecurr); } @@ -614,7 +653,7 @@ sub process { # to try and find and validate the current printk. In summary the current # printk includes all preceeding printk's which have no newline on the end. # we assume the first bad printk is the one to report. - if ($line =~ /\bprintk\((?!KERN_)/) { + if ($line =~ /\bprintk\((?!KERN_)\s*"/) { my $ok = 0; for (my $ln = $linenr - 1; $ln >= $first_line; $ln--) { #print "CHECK<$lines[$ln - 1]\n"; @@ -639,6 +678,12 @@ sub process { ERROR("open brace '{' following function declarations go on the next line\n" . $herecurr); } +# check for spaces between functions and their parentheses. + if ($line =~ /($Ident)\s+\(/ && + $1 !~ /^(?:if|for|while|switch|return|volatile)$/ && + $line !~ /$Type\s+\(/ && $line !~ /^.\#\s*define\b/) { + ERROR("no space between function name and open parenthesis '('\n" . $herecurr); + } # Check operator spacing. # Note we expand the line with the leading + as the real # line will be displayed with the leading + and the tabs @@ -647,7 +692,7 @@ sub process { $opline = expand_tabs($opline); $opline =~ s/^./ /; if (!($line=~/\#\s*include/)) { - my @elements = split(/(<<=|>>=|<=|>=|==|!=|\+=|-=|\*=|\/=|%=|\^=|\|=|&=|->|<<|>>|<|>|=|!|~|&&|\|\||,|\^|\+\+|--|;|&|\||\+|-|\*|\/\/|\/)/, $opline); + my @elements = split(/(<<=|>>=|<=|>=|==|!=|\+=|-=|\*=|\/=|%=|\^=|\|=|&=|=>|->|<<|>>|<|>|=|!|~|&&|\|\||,|\^|\+\+|--|;|&|\||\+|-|\*|\/\/|\/)/, $opline); my $off = 0; for (my $n = 0; $n < $#elements; $n += 2) { $off += length($elements[$n]); @@ -773,6 +818,18 @@ sub process { } } +# check for multiple assignments + if ($line =~ /^.\s*$Lval\s*=\s*$Lval\s*=(?!=)/) { + WARN("multiple assignments should be avoided\n" . $herecurr); + } + +# check for multiple declarations, allowing for a function declaration +# continuation. + if ($line =~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Ident.*/ && + $line !~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Type\s*$Ident.*/) { + WARN("declaring multiple variables together should be avoided\n" . $herecurr); + } + #need space before brace following if, while, etc if ($line =~ /\(.*\){/ || $line =~ /do{/) { ERROR("need a space before the open brace '{'\n" . $herecurr); @@ -847,13 +904,18 @@ sub process { # or the one below. my $ln = $linenr; my $cnt = $realcnt; + my $off = 0; - # If the macro starts on the define line start there. - if ($prevline !~ m{^.#\s*define\s*$Ident(?:\([^\)]*\))?\s*\\\s*$}) { + # If the macro starts on the define line start + # grabbing the statement after the identifier + $prevline =~ m{^(.#\s*define\s*$Ident(?:\([^\)]*\))?\s*)(.*)\\\s*$}; + ##print "1<$1> 2<$2>\n"; + if ($2 ne '') { + $off = length($1); $ln--; $cnt++; } - my @ctx = ctx_statement($ln, $cnt); + my @ctx = ctx_statement($ln, $cnt, $off); my $ctx_ln = $ln + $#ctx + 1; my $ctx = join("\n", @ctx); @@ -873,6 +935,44 @@ sub process { } } +# check for redundant bracing round if etc + if ($line =~ /\b(if|while|for|else)\b/) { + # Locate the end of the opening statement. + my @control = ctx_statement($linenr, $realcnt, 0); + my $nr = $linenr + (scalar(@control) - 1); + my $cnt = $realcnt - (scalar(@control) - 1); + + my $off = $realcnt - $cnt; + #print "$off: line<$line>end<" . $lines[$nr - 1] . ">\n"; + + # If this is is a braced statement group check it + if ($lines[$nr - 1] =~ /{\s*$/) { + my ($lvl, @block) = ctx_block_level($nr, $cnt); + + my $stmt = join(' ', @block); + $stmt =~ s/^[^{]*{//; + $stmt =~ s/}[^}]*$//; + + #print "block<" . join(' ', @block) . "><" . scalar(@block) . ">\n"; + #print "stmt<$stmt>\n\n"; + + # Count the ;'s if there is fewer than two + # then there can only be one statement, + # if there is a brace inside we cannot + # trivially detect if its one statement. + # Also nested if's often require braces to + # disambiguate the else binding so shhh there. + my @semi = ($stmt =~ /;/g); + ##print "semi<" . scalar(@semi) . ">\n"; + if ($lvl == 0 && scalar(@semi) < 2 && + $stmt !~ /{/ && $stmt !~ /\bif\b/) { + my $herectx = "$here\n" . join("\n", @control, @block[1 .. $#block]) . "\n"; + shift(@block); + ERROR("braces {} are not necessary for single statement blocks\n" . $herectx); + } + } + } + # don't include deprecated include files (uses RAW line) for my $inc (@dep_includes) { if ($rawline =~ m@\#\s*include\s*\<$inc>@) { @@ -898,6 +998,14 @@ sub process { $herecurr); } +# check for needless kfree() checks + if ($prevline =~ /\bif\s*\(([^\)]*)\)/) { + my $expr = $1; + if ($line =~ /\bkfree\(\Q$expr\E\);/) { + WARN("kfree(NULL) is safe this check is probabally not required\n" . $hereprev); + } + } + # warn about #ifdefs in C files # if ($line =~ /^.#\s*if(|n)def/ && ($realfile =~ /\.c$/)) { # print "#ifdef in C files should be avoided\n"; @@ -952,6 +1060,9 @@ sub process { ERROR("Missing Signed-off-by: line(s)\n"); } + if ($clean == 0 && ($chk_patch || $is_patch)) { + print report_dump(); + } if ($clean == 1 && $quiet == 0) { print "Your patch has no obvious style problems and is ready for submission.\n" } diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c index 8b809b264d18..10b006694e5d 100644 --- a/scripts/kallsyms.c +++ b/scripts/kallsyms.c @@ -31,7 +31,7 @@ #include <string.h> #include <ctype.h> -#define KSYM_NAME_LEN 127 +#define KSYM_NAME_LEN 128 struct sym_entry { @@ -254,7 +254,7 @@ static void write_src(void) unsigned int i, k, off; unsigned int best_idx[256]; unsigned int *markers; - char buf[KSYM_NAME_LEN+1]; + char buf[KSYM_NAME_LEN]; printf("#include <asm/types.h>\n"); printf("#if BITS_PER_LONG == 64\n"); diff --git a/scripts/kernel-doc b/scripts/kernel-doc index e5bf649e516a..1f5835115cad 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -154,6 +154,7 @@ use strict; my $errors = 0; my $warnings = 0; +my $anon_struct_union = 0; # match expressions used to find embedded type information my $type_constant = '\%([-_\w]+)'; @@ -403,7 +404,11 @@ sub output_highlight { print $lineprefix, $blankline; } else { $line =~ s/\\\\\\/\&/g; - print $lineprefix, $line; + if ($output_mode eq "man" && substr($line, 0, 1) eq ".") { + print "\\&$line"; + } else { + print $lineprefix, $line; + } } print "\n"; } @@ -718,6 +723,7 @@ sub output_struct_xml(%) { # pointer-to-function print " $1 $parameter) ($2);\n"; } elsif ($type =~ m/^(.*?)\s*(:.*)/) { + # bitfield print " $1 $parameter$2;\n"; } else { print " ".$type." ".$parameter.";\n"; @@ -1260,6 +1266,7 @@ sub output_struct_text(%) { # pointer-to-function print "\t$1 $parameter) ($2);\n"; } elsif ($type =~ m/^(.*?)\s*(:.*)/) { + # bitfield print "\t$1 $parameter$2;\n"; } else { print "\t".$type." ".$parameter.";\n"; @@ -1510,8 +1517,13 @@ sub push_parameter($$$) { my $param = shift; my $type = shift; my $file = shift; - my $anon = 0; + if (($anon_struct_union == 1) && ($type eq "") && + ($param eq "}")) { + return; # ignore the ending }; from anon. struct/union + } + + $anon_struct_union = 0; my $param_name = $param; $param_name =~ s/\[.*//; @@ -1530,16 +1542,16 @@ sub push_parameter($$$) { # handle unnamed (anonymous) union or struct: { $type = $param; - $param = "{unnamed_" . $param. "}"; + $param = "{unnamed_" . $param . "}"; $parameterdescs{$param} = "anonymous\n"; - $anon = 1; + $anon_struct_union = 1; } # warn if parameter has no description # (but ignore ones starting with # as these are not parameters # but inline preprocessor statements); # also ignore unnamed structs/unions; - if (!$anon) { + if (!$anon_struct_union) { if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) { $parameterdescs{$param_name} = $undescribed; @@ -1691,6 +1703,8 @@ sub process_state3_function($$) { my $x = shift; my $file = shift; + $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line + if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#define/)) { # do nothing } @@ -1713,6 +1727,8 @@ sub process_state3_type($$) { $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's. $x =~ s@^\s+@@gos; # strip leading spaces $x =~ s@\s+$@@gos; # strip trailing spaces + $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line + if ($x =~ /^#/) { # To distinguish preprocessor directive from regular declaration later. $x .= ";"; @@ -1796,7 +1812,7 @@ sub process_file($) { $state = 2; if (/-(.*)/) { - # strip leading/trailing/multiple spaces #RDD:T: + # strip leading/trailing/multiple spaces $descr= $1; $descr =~ s/^\s*//; $descr =~ s/\s*$//; diff --git a/security/commoncap.c b/security/commoncap.c index 384379ede4fd..338606eb7238 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -148,7 +148,7 @@ void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) if (bprm->e_uid != current->uid || bprm->e_gid != current->gid || !cap_issubset (new_permitted, current->cap_permitted)) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); if (unsafe & ~LSM_UNSAFE_PTRACE_CAP) { if (!capable(CAP_SETUID)) { diff --git a/security/dummy.c b/security/dummy.c index d6a112ce2975..19d813d5e083 100644 --- a/security/dummy.c +++ b/security/dummy.c @@ -130,7 +130,7 @@ static void dummy_bprm_free_security (struct linux_binprm *bprm) static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) { if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) { - current->mm->dumpable = suid_dumpable; + set_dumpable(current->mm, suid_dumpable); if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) { bprm->e_uid = current->uid; diff --git a/security/keys/request_key.c b/security/keys/request_key.c index f573ac189a0a..557500110a13 100644 --- a/security/keys/request_key.c +++ b/security/keys/request_key.c @@ -108,7 +108,8 @@ static int call_sbin_request_key(struct key *key, argv[i] = NULL; /* do it */ - ret = call_usermodehelper_keys(argv[0], argv, envp, keyring, 1); + ret = call_usermodehelper_keys(argv[0], argv, envp, keyring, + UMH_WAIT_PROC); error_link: key_put(keyring); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 78c3f98fcdcf..520b9998123e 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2318,7 +2318,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, char *name, void *value if (sbsec->behavior == SECURITY_FS_USE_MNTPOINT) return -EOPNOTSUPP; - if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + if (!is_owner_or_cap(inode)) return -EPERM; AVC_AUDIT_DATA_INIT(&ad,FS); diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c index 061a7c61402a..e11790f6debe 100644 --- a/sound/core/seq/seq_virmidi.c +++ b/sound/core/seq/seq_virmidi.c @@ -363,7 +363,7 @@ static int snd_virmidi_dev_attach_seq(struct snd_virmidi_dev *rdev) if (rdev->client >= 0) return 0; - pinfo = kmalloc(sizeof(*pinfo), GFP_KERNEL); + pinfo = kzalloc(sizeof(*pinfo), GFP_KERNEL); if (!pinfo) { err = -ENOMEM; goto __error; @@ -380,7 +380,6 @@ static int snd_virmidi_dev_attach_seq(struct snd_virmidi_dev *rdev) rdev->client = client; /* create a port */ - memset(pinfo, 0, sizeof(*pinfo)); pinfo->addr.client = client; sprintf(pinfo->name, "VirMIDI %d-%d", rdev->card->number, rdev->device); /* set all capabilities */ diff --git a/sound/core/sound.c b/sound/core/sound.c index 70600df94d62..8dc7a3b32b98 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -446,8 +446,7 @@ static void __exit alsa_sound_exit(void) { snd_info_minor_unregister(); snd_info_done(); - if (unregister_chrdev(major, "alsa") != 0) - snd_printk(KERN_ERR "unable to unregister major device number %d\n", major); + unregister_chrdev(major, "alsa"); } module_init(alsa_sound_init) diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig index 314477909f82..866d4de8d4ab 100644 --- a/sound/oss/Kconfig +++ b/sound/oss/Kconfig @@ -5,35 +5,6 @@ # # Prompt user for primary drivers. -config OSS_OBSOLETE - bool "Obsolete OSS drivers" - depends on SOUND_PRIME - help - This option enables support for obsolete OSS drivers that - are scheduled for removal in the near future. - - Please contact Adrian Bunk <bunk@stusta.de> if you had to - say Y here because your hardware is not properly supported - by ALSA. - - If unsure, say N. - -config SOUND_BT878 - tristate "BT878 audio dma" - depends on SOUND_PRIME && PCI && OSS_OBSOLETE - ---help--- - Audio DMA support for bt878 based grabber boards. As you might have - already noticed, bt878 is listed with two functions in /proc/pci. - Function 0 does the video stuff (bt848 compatible), function 1 does - the same for audio data. This is a driver for the audio part of - the chip. If you say 'Y' here you get a oss-compatible dsp device - where you can record from. If you want just watch TV you probably - don't need this driver as most TV cards handle sound with a short - cable from the TV card to your sound card's line-in. - - To compile this driver as a module, choose M here: the module will - be called btaudio. - config SOUND_BCM_CS4297A tristate "Crystal Sound CS4297a (for Swarm)" depends on SOUND_PRIME && SIBYTE_SWARM @@ -44,13 +15,6 @@ config SOUND_BCM_CS4297A note that CONFIG_KGDB should not be enabled at the same time, since it also attempts to use this UART port. -config SOUND_ICH - tristate "Intel ICH (i8xx) audio support" - depends on SOUND_PRIME && PCI && OSS_OBSOLETE - help - Support for integral audio in Intel's I/O Controller Hub (ICH) - chipset, as used on the 810/820/840 motherboards. - config SOUND_VWSND tristate "SGI Visual Workstation Sound" depends on SOUND_PRIME && X86_VISWS @@ -346,26 +310,6 @@ config MSND_FIFOSIZE and Pinnacle). Larger values reduce the chance of data overruns at the expense of overall latency. If unsure, use the default. -config SOUND_VIA82CXXX - tristate "VIA 82C686 Audio Codec" - depends on SOUND_PRIME && PCI && OSS_OBSOLETE && VIRT_TO_BUS - help - Say Y here to include support for the audio codec found on VIA - 82Cxxx-based chips. Typically these are built into a motherboard. - - DO NOT select Sound Blaster or Adlib with this driver, unless - you have a Sound Blaster or Adlib card in addition to your VIA - audio chip. - -config MIDI_VIA82CXXX - bool "VIA 82C686 MIDI" - depends on SOUND_VIA82CXXX && ISA_DMA_API - help - Answer Y to use the MIDI interface of the Via686. You may need to - enable this in the BIOS before it will work. This is for connection - to external MIDI hardware, and is not required for software playback - of MIDI files. - config SOUND_OSS tristate "OSS sound modules" depends on SOUND_PRIME && ISA_DMA_API && VIRT_TO_BUS @@ -400,20 +344,6 @@ config SOUND_DMAP Say Y unless you have 16MB or more RAM or a PCI sound card. -config SOUND_CS4232 - tristate "Crystal CS4232 based (PnP) cards" - depends on SOUND_OSS && OSS_OBSOLETE - help - Say Y here if you have a card based on the Crystal CS4232 chip set, - which uses its own Plug and Play protocol. - - If you compile the driver into the kernel, you have to add - "cs4232=<io>,<irq>,<dma>,<dma2>,<mpuio>,<mpuirq>" to the kernel - command line. - - See <file:Documentation/sound/oss/CS4232> for more information on - configuring this card. - config SOUND_SSCAPE tristate "Ensoniq SoundScape support" depends on SOUND_OSS @@ -720,13 +650,6 @@ config SOUND_WAVEARTIST Say Y here to include support for the Rockwell WaveArtist sound system. This driver is mainly for the NetWinder. -config SOUND_TVMIXER - tristate "TV card (bt848) mixer support" - depends on SOUND_PRIME && I2C && VIDEO_V4L1 && OSS_OBSOLETE - help - Support for audio mixer facilities on the BT848 TV frame-grabber - card. - config SOUND_KAHLUA tristate "XpressAudio Sound Blaster emulation" depends on SOUND_SB diff --git a/sound/oss/trident.c b/sound/oss/trident.c index 3bc1f6e9e4a3..96adc47917aa 100644 --- a/sound/oss/trident.c +++ b/sound/oss/trident.c @@ -11,12 +11,12 @@ * Built from: * Low level code: <audio@tridentmicro.com> from ALSA * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch> - * Extended by: Zach Brown <zab@redhat.com> + * Extended by: Zach Brown <zab@redhat.com> * * Hacked up by: * Aaron Holtzman <aholtzma@ess.engr.uvic.ca> * Ollie Lho <ollie@sis.com.tw> SiS 7018 Audio Core Support - * Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support + * Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support * Matt Wu <mattwu@acersoftech.com.cn> ALi 5451 Audio Core Support * Peter Wächtler <pwaechtler@loewe-komp.de> CyberPro5050 support * Muli Ben-Yehuda <mulix@mulix.org> @@ -54,33 +54,33 @@ * adapt to new pci joystick attachment interface * v0.14.10f * July 24 2002 Muli Ben-Yehuda <mulix@actcom.co.il> - * patch from Eric Lemar (via Ian Soboroff): in suspend and resume, - * fix wrong cast from pci_dev* to struct trident_card*. + * patch from Eric Lemar (via Ian Soboroff): in suspend and resume, + * fix wrong cast from pci_dev* to struct trident_card*. * v0.14.10e * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il> - * rewrite the DMA buffer allocation/deallcoation functions, to make it - * modular and fix a bug where we would call free_pages on memory - * obtained with pci_alloc_consistent. Also remove unnecessary #ifdef + * rewrite the DMA buffer allocation/deallcoation functions, to make it + * modular and fix a bug where we would call free_pages on memory + * obtained with pci_alloc_consistent. Also remove unnecessary #ifdef * CONFIG_PROC_FS and various other cleanups. * v0.14.10d * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il> * made several printk(KERN_NOTICE...) into TRDBG(...), to avoid spamming - * my syslog with hundreds of messages. + * my syslog with hundreds of messages. * v0.14.10c * July 16 2002 Muli Ben-Yehuda <mulix@actcom.co.il> * Cleaned up Lei Hu's 0.4.10 driver to conform to Documentation/CodingStyle - * and the coding style used in the rest of the file. + * and the coding style used in the rest of the file. * v0.14.10b * June 23 2002 Muli Ben-Yehuda <mulix@actcom.co.il> - * add a missing unlock_set_fmt, remove a superflous lock/unlock pair - * with nothing in between. + * add a missing unlock_set_fmt, remove a superflous lock/unlock pair + * with nothing in between. * v0.14.10a - * June 21 2002 Muli Ben-Yehuda <mulix@actcom.co.il> - * use a debug macro instead of #ifdef CONFIG_DEBUG, trim to 80 columns - * per line, use 'do {} while (0)' in statement macros. + * June 21 2002 Muli Ben-Yehuda <mulix@actcom.co.il> + * use a debug macro instead of #ifdef CONFIG_DEBUG, trim to 80 columns + * per line, use 'do {} while (0)' in statement macros. * v0.14.10 * June 6 2002 Lei Hu <Lei_hu@ali.com.tw> - * rewrite the part to read/write registers of audio codec for Ali5451 + * rewrite the part to read/write registers of audio codec for Ali5451 * v0.14.9e * January 2 2002 Vojtech Pavlik <vojtech@ucw.cz> added gameport * support to avoid resource conflict with pcigame.c @@ -111,7 +111,7 @@ * Set EBUF1 and EBUF2 to still mode * Add dc97/ac97 reset function * Fix power management: ali_restore_regs - * unreleased + * unreleased * Mar 09 2001 Matt Wu * Add cache for ac97 access * v0.14.7 @@ -120,7 +120,7 @@ * Fix bug: an extra tail will be played when playing * Jan 05 2001 Matt Wu * Implement multi-channels and S/PDIF in support for ALi 1535+ - * v0.14.6 + * v0.14.6 * Nov 1 2000 Ching-Ling Lee * Fix the bug of memory leak when switching 5.1-channels to 2 channels. * Add lock protection into dynamic changing format of data. @@ -138,7 +138,7 @@ * v0.14.3 May 10 2000 Ollie Lho * fixed a small bug in trident_update_ptr, xmms 1.0.1 no longer uses 100% CPU * v0.14.2 Mar 29 2000 Ching-Ling Lee - * Add clear to silence advance in trident_update_ptr + * Add clear to silence advance in trident_update_ptr * fix invalid data of the end of the sound * v0.14.1 Mar 24 2000 Ching-Ling Lee * ALi 5451 support added, playback and recording O.K. @@ -178,7 +178,7 @@ * SiS 7018 support added, playback O.K. * v0.01 Alan Cox et. al. * Initial Release in kernel 2.3.30, does not work - * + * * ToDo * Clean up of low level channel register access code. (done) * Fix the bug on dma buffer management in update_ptr, read/write, drain_dac (done) @@ -326,7 +326,7 @@ struct trident_state { unsigned error; /* number of over/underruns */ /* put process on wait queue when no more space in buffer */ - wait_queue_head_t wait; + wait_queue_head_t wait; /* redundant, but makes calculations easier */ unsigned fragsize; @@ -358,7 +358,7 @@ struct trident_state { struct trident_channel { int num; /* channel number */ u32 lba; /* Loop Begine Address, where dma buffer starts */ - u32 eso; /* End Sample Offset, wehre dma buffer ends */ + u32 eso; /* End Sample Offset, wehre dma buffer ends */ /* (in the unit of samples) */ u32 delta; /* delta value, sample rate / 48k for playback, */ /* 48k/sample rate for recording */ @@ -417,7 +417,7 @@ struct trident_card { /* soundcore stuff */ int dev_audio; - /* structures for abstraction of hardware facilities, codecs, */ + /* structures for abstraction of hardware facilities, codecs, */ /* banks and channels */ struct ac97_codec *ac97_codec[NR_AC97]; struct trident_pcm_bank banks[NR_BANKS]; @@ -479,7 +479,7 @@ static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val); static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg); static int trident_open_mixdev(struct inode *inode, struct file *file); -static int trident_ioctl_mixdev(struct inode *inode, struct file *file, +static int trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val); @@ -496,10 +496,10 @@ static void ali_disable_spdif_in(struct trident_card *card); static void ali_disable_special_channel(struct trident_card *card, int ch); static void ali_setup_spdif_out(struct trident_card *card, int flag); static int ali_write_5_1(struct trident_state *state, - const char __user *buffer, - int cnt_for_multi_channel, unsigned int *copy_count, + const char __user *buffer, + int cnt_for_multi_channel, unsigned int *copy_count, unsigned int *state_cnt); -static int ali_allocate_other_states_resources(struct trident_state *state, +static int ali_allocate_other_states_resources(struct trident_state *state, int chan_nums); static void ali_free_other_states_resources(struct trident_state *state); @@ -722,7 +722,7 @@ trident_free_pcm_channel(struct trident_card *card, unsigned int channel) if (channel < 31 || channel > 63) return; - if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX || + if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX || card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) { b = inb(TRID_REG(card, T4D_REC_CH)); if ((b & ~0x80) == channel) @@ -742,7 +742,7 @@ cyber_alloc_pcm_channel(struct trident_card *card) int idx; /* The cyberpro 5050 has only 32 voices and one bank */ - /* .. at least they are not documented (if you want to call that + /* .. at least they are not documented (if you want to call that * crap documentation), perhaps broken ? */ bank = &card->banks[BANK_A]; @@ -802,7 +802,7 @@ cyber_init_ritual(struct trident_card *card) /* enable, if it was disabled */ if ((portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE) { printk(KERN_INFO "cyberpro5050: enabling audio controller\n"); - cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE, + cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE, portDat | CYBER_BMSK_AUENZ_ENABLE); /* check again if hardware is enabled now */ portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE); @@ -811,7 +811,7 @@ cyber_init_ritual(struct trident_card *card) printk(KERN_ERR "cyberpro5050: initAudioAccess: no success\n"); ret = -1; } else { - cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE, + cyber_outidx(CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE, CYBER_BMSK_AUDIO_INT_ENABLE); cyber_outidx(CYBER_PORT_AUDIO, 0xbf, 0x01); cyber_outidx(CYBER_PORT_AUDIO, 0xba, 0x20); @@ -827,7 +827,7 @@ cyber_init_ritual(struct trident_card *card) /* called with spin lock held */ static int -trident_load_channel_registers(struct trident_card *card, u32 * data, +trident_load_channel_registers(struct trident_card *card, u32 * data, unsigned int channel) { int i; @@ -845,7 +845,7 @@ trident_load_channel_registers(struct trident_card *card, u32 * data, continue; outl(data[i], TRID_REG(card, CHANNEL_START + 4 * i)); } - if (card->pci_id == PCI_DEVICE_ID_ALI_5451 || + if (card->pci_id == PCI_DEVICE_ID_ALI_5451 || card->pci_id == PCI_DEVICE_ID_INTERG_5050) { outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1)); outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2)); @@ -884,7 +884,7 @@ trident_write_voice_regs(struct trident_state *state) break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: data[0] = (channel->delta << 24); - data[2] = ((channel->delta << 16) & 0xff000000) | + data[2] = ((channel->delta << 16) & 0xff000000) | (channel->eso & 0x00ffffff); data[3] = channel->fm_vol & 0xffff; break; @@ -989,13 +989,13 @@ trident_play_setup(struct trident_state *state) if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) { channel->attribute = 0; if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) { - if ((channel->num == ALI_SPDIF_IN_CHANNEL) || + if ((channel->num == ALI_SPDIF_IN_CHANNEL) || (channel->num == ALI_PCM_IN_CHANNEL)) ali_disable_special_channel(state->card, channel->num); - else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL)) + else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE) && (channel->num == ALI_SPDIF_OUT_CHANNEL)) { - ali_set_spdif_out_rate(state->card, + ali_set_spdif_out_rate(state->card, state->dmabuf.rate); state->dmabuf.channel->delta = 0x1000; } @@ -1063,7 +1063,7 @@ trident_rec_setup(struct trident_state *state) channel->lba = dmabuf->dma_handle; channel->delta = compute_rate_rec(dmabuf->rate); - if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) && + if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) && (channel->num == ALI_SPDIF_IN_CHANNEL)) { rate = ali_get_spdif_in_rate(card); if (rate == 0) { @@ -1180,8 +1180,8 @@ start_adc(struct trident_state *state) unsigned long flags; spin_lock_irqsave(&card->lock, flags); - if ((dmabuf->mapped || - dmabuf->count < (signed) dmabuf->dmasize) && + if ((dmabuf->mapped || + dmabuf->count < (signed) dmabuf->dmasize) && dmabuf->ready) { dmabuf->enable |= ADC_RUNNING; trident_enable_voice_irq(card, chan_num); @@ -1261,7 +1261,7 @@ alloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev, int order) void *rawbuf = NULL; struct page *page, *pend; - if (!(rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order, + if (!(rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order, &dmabuf->dma_handle))) return -ENOMEM; @@ -1272,7 +1272,7 @@ alloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev, int order) dmabuf->rawbuf = rawbuf; dmabuf->buforder = order; - /* now mark the pages as reserved; otherwise */ + /* now mark the pages as reserved; otherwise */ /* remap_pfn_range doesn't do what we want */ pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1); for (page = virt_to_page(rawbuf); page <= pend; page++) @@ -1310,7 +1310,7 @@ dealloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev) pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1); for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++) ClearPageReserved(page); - pci_free_consistent(pci_dev, PAGE_SIZE << dmabuf->buforder, + pci_free_consistent(pci_dev, PAGE_SIZE << dmabuf->buforder, dmabuf->rawbuf, dmabuf->dma_handle); dmabuf->rawbuf = NULL; } @@ -1368,7 +1368,7 @@ prog_dmabuf(struct trident_state *state, enum dmabuf_mode rec) dealloc_dmabuf(&state->dmabuf, state->card->pci_dev); /* release the auxiliary DMA buffers */ for (i -= 2; i >= 0; i--) - dealloc_dmabuf(&state->other_states[i]->dmabuf, + dealloc_dmabuf(&state->other_states[i]->dmabuf, state->card->pci_dev); unlock_set_fmt(state); return ret; @@ -1398,7 +1398,7 @@ prog_dmabuf(struct trident_state *state, enum dmabuf_mode rec) dmabuf->fragsamples = dmabuf->fragsize >> sample_shift[dmabuf->fmt]; dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift; - memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80, + memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80, dmabuf->dmasize); spin_lock_irqsave(&s->card->lock, flags); @@ -1453,7 +1453,7 @@ trident_clear_tail(struct trident_state *state) swptr = dmabuf->swptr; spin_unlock_irqrestore(&state->card->lock, flags); - if (swptr == 0 || swptr == dmabuf->dmasize / 2 || + if (swptr == 0 || swptr == dmabuf->dmasize / 2 || swptr == dmabuf->dmasize) return; @@ -1511,7 +1511,7 @@ drain_dac(struct trident_state *state, int nonblock) /* No matter how much data is left in the buffer, we have to wait until CSO == ESO/2 or CSO == ESO when address engine interrupts */ - if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 || + if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 || state->card->pci_id == PCI_DEVICE_ID_INTERG_5050) { diff = dmabuf->swptr - trident_get_dma_addr(state) + dmabuf->dmasize; diff = diff % (dmabuf->dmasize); @@ -1532,7 +1532,7 @@ drain_dac(struct trident_state *state, int nonblock) return 0; } -/* update buffer manangement pointers, especially, */ +/* update buffer manangement pointers, especially, */ /* dmabuf->count and dmabuf->hwptr */ static void trident_update_ptr(struct trident_state *state) @@ -1559,11 +1559,11 @@ trident_update_ptr(struct trident_state *state) } else { dmabuf->count += diff; - if (dmabuf->count < 0 || + if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) { - /* buffer underrun or buffer overrun, */ - /* we have no way to recover it here, just */ - /* stop the machine and let the process */ + /* buffer underrun or buffer overrun, */ + /* we have no way to recover it here, just */ + /* stop the machine and let the process */ /* force hwptr and swptr to sync */ __stop_adc(state); dmabuf->error++; @@ -1582,7 +1582,7 @@ trident_update_ptr(struct trident_state *state) } else { dmabuf->count -= diff; - if (dmabuf->count < 0 || + if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) { /* buffer underrun or buffer overrun, we have no way to recover it here, just stop the machine and let the process force hwptr @@ -1608,13 +1608,13 @@ trident_update_ptr(struct trident_state *state) if (state->chans_num == 6) { clear_cnt = clear_cnt / 2; swptr = swptr / 2; - memset(state->other_states[0]->dmabuf.rawbuf + swptr, + memset(state->other_states[0]->dmabuf.rawbuf + swptr, silence, clear_cnt); - memset(state->other_states[1]->dmabuf.rawbuf + swptr, + memset(state->other_states[1]->dmabuf.rawbuf + swptr, silence, clear_cnt); - memset(state->other_states[2]->dmabuf.rawbuf + swptr, + memset(state->other_states[2]->dmabuf.rawbuf + swptr, silence, clear_cnt); - memset(state->other_states[3]->dmabuf.rawbuf + swptr, + memset(state->other_states[3]->dmabuf.rawbuf + swptr, silence, clear_cnt); } dmabuf->endcleared = 1; @@ -1627,13 +1627,13 @@ trident_update_ptr(struct trident_state *state) if (state->chans_num == 6) { clear_cnt = clear_cnt / 2; swptr = swptr / 2; - memset(state->other_states[0]->dmabuf.rawbuf + swptr, + memset(state->other_states[0]->dmabuf.rawbuf + swptr, silence, clear_cnt); - memset(state->other_states[1]->dmabuf.rawbuf + swptr, + memset(state->other_states[1]->dmabuf.rawbuf + swptr, silence, clear_cnt); - memset(state->other_states[2]->dmabuf.rawbuf + swptr, + memset(state->other_states[2]->dmabuf.rawbuf + swptr, silence, clear_cnt); - memset(state->other_states[3]->dmabuf.rawbuf + swptr, + memset(state->other_states[3]->dmabuf.rawbuf + swptr, silence, clear_cnt); } dmabuf->endcleared = 1; @@ -1665,7 +1665,7 @@ trident_address_interrupt(struct trident_card *card) if ((state = card->states[i]) != NULL) { trident_update_ptr(state); } else { - printk(KERN_WARNING "trident: spurious channel " + printk(KERN_WARNING "trident: spurious channel " "irq %d.\n", channel); trident_stop_voice(card, channel); trident_disable_voice_irq(card, channel); @@ -1694,7 +1694,7 @@ ali_hwvol_control(struct trident_card *card, int opt) if (opt == 1) { // MUTE dwTemp ^= 0x8000; - ali_ac97_write(card->ac97_codec[0], + ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp); } else if (opt == 2) { // Down if (mute) @@ -1706,7 +1706,7 @@ ali_hwvol_control(struct trident_card *card, int opt) dwTemp &= 0xe0e0; dwTemp |= (volume[0]) | (volume[1] << 8); ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp); - card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) | + card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) | (((32 - volume[1]) * 25 / 8) << 8); } else if (opt == 4) { // Up if (mute) @@ -1718,7 +1718,7 @@ ali_hwvol_control(struct trident_card *card, int opt) dwTemp &= 0xe0e0; dwTemp |= (volume[0]) | (volume[1] << 8); ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp); - card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) | + card->ac97_codec[0]->mixer_state[0] = ((32 - volume[0]) * 25 / 8) | (((32 - volume[1]) * 25 / 8) << 8); } else { /* Nothing needs doing */ @@ -1801,7 +1801,7 @@ cyber_address_interrupt(struct trident_card *card) if ((state = card->states[i]) != NULL) { trident_update_ptr(state); } else { - printk(KERN_WARNING "cyber5050: spurious " + printk(KERN_WARNING "cyber5050: spurious " "channel irq %d.\n", channel); trident_stop_voice(card, channel); trident_disable_voice_irq(card, channel); @@ -1836,21 +1836,21 @@ trident_interrupt(int irq, void *dev_id) ali_queue_task(card, gpio & 0x07); } event = inl(TRID_REG(card, T4D_MISCINT)); - outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), + outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), TRID_REG(card, T4D_MISCINT)); spin_unlock(&card->lock); return IRQ_HANDLED; } /* manually clear interrupt status, bad hardware design, blame T^2 */ - outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), + outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), TRID_REG(card, T4D_MISCINT)); spin_unlock(&card->lock); return IRQ_HANDLED; } -/* in this loop, dmabuf.count signifies the amount of data that is waiting */ -/* to be copied to the user's buffer. it is filled by the dma machine and */ +/* in this loop, dmabuf.count signifies the amount of data that is waiting */ +/* to be copied to the user's buffer. it is filled by the dma machine and */ /* drained by this loop. */ static ssize_t trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos) @@ -1878,8 +1878,8 @@ trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos while (count > 0) { spin_lock_irqsave(&state->card->lock, flags); if (dmabuf->count > (signed) dmabuf->dmasize) { - /* buffer overrun, we are recovering from */ - /* sleep_on_timeout, resync hwptr and swptr, */ + /* buffer overrun, we are recovering from */ + /* sleep_on_timeout, resync hwptr and swptr, */ /* make process flush the buffer */ dmabuf->count = dmabuf->dmasize; dmabuf->swptr = dmabuf->hwptr; @@ -1894,7 +1894,7 @@ trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos cnt = count; if (cnt <= 0) { unsigned long tmo; - /* buffer is empty, start the dma machine and */ + /* buffer is empty, start the dma machine and */ /* wait for data to be recorded */ start_adc(state); if (file->f_flags & O_NONBLOCK) { @@ -1904,8 +1904,8 @@ trident_read(struct file *file, char __user *buffer, size_t count, loff_t * ppos } mutex_unlock(&state->sem); - /* No matter how much space left in the buffer, */ - /* we have to wait until CSO == ESO/2 or CSO == ESO */ + /* No matter how much space left in the buffer, */ + /* we have to wait until CSO == ESO/2 or CSO == ESO */ /* when address engine interrupts */ tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2); tmo >>= sample_shift[dmabuf->fmt]; @@ -2005,7 +2005,7 @@ trident_write(struct file *file, const char __user *buffer, size_t count, loff_t while (count > 0) { spin_lock_irqsave(&state->card->lock, flags); if (dmabuf->count < 0) { - /* buffer underrun, we are recovering from */ + /* buffer underrun, we are recovering from */ /* sleep_on_timeout, resync hwptr and swptr */ dmabuf->count = 0; dmabuf->swptr = dmabuf->hwptr; @@ -2020,7 +2020,7 @@ trident_write(struct file *file, const char __user *buffer, size_t count, loff_t cnt = count; if (cnt <= 0) { unsigned long tmo; - /* buffer is full, start the dma machine and */ + /* buffer is full, start the dma machine and */ /* wait for data to be played */ start_dac(state); if (file->f_flags & O_NONBLOCK) { @@ -2028,8 +2028,8 @@ trident_write(struct file *file, const char __user *buffer, size_t count, loff_t ret = -EAGAIN; goto out; } - /* No matter how much data left in the buffer, */ - /* we have to wait until CSO == ESO/2 or CSO == ESO */ + /* No matter how much data left in the buffer, */ + /* we have to wait until CSO == ESO/2 or CSO == ESO */ /* when address engine interrupts */ lock_set_fmt(state); tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2); @@ -2037,15 +2037,15 @@ trident_write(struct file *file, const char __user *buffer, size_t count, loff_t unlock_set_fmt(state); mutex_unlock(&state->sem); - /* There are two situations when sleep_on_timeout */ - /* returns, one is when the interrupt is serviced */ - /* correctly and the process is waked up by ISR */ - /* ON TIME. Another is when timeout is expired, which */ - /* means that either interrupt is NOT serviced */ - /* correctly (pending interrupt) or it is TOO LATE */ - /* for the process to be scheduled to run */ - /* (scheduler latency) which results in a (potential) */ - /* buffer underrun. And worse, there is NOTHING we */ + /* There are two situations when sleep_on_timeout */ + /* returns, one is when the interrupt is serviced */ + /* correctly and the process is waked up by ISR */ + /* ON TIME. Another is when timeout is expired, which */ + /* means that either interrupt is NOT serviced */ + /* correctly (pending interrupt) or it is TOO LATE */ + /* for the process to be scheduled to run */ + /* (scheduler latency) which results in a (potential) */ + /* buffer underrun. And worse, there is NOTHING we */ /* can do to prevent it. */ if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) { pr_debug(KERN_ERR "trident: playback schedule " @@ -2054,8 +2054,8 @@ trident_write(struct file *file, const char __user *buffer, size_t count, loff_t dmabuf->fragsize, dmabuf->count, dmabuf->hwptr, dmabuf->swptr); - /* a buffer underrun, we delay the recovery */ - /* until next time the while loop begin and */ + /* a buffer underrun, we delay the recovery */ + /* until next time the while loop begin and */ /* we REALLY have data to play */ } if (signal_pending(current)) { @@ -2079,7 +2079,7 @@ trident_write(struct file *file, const char __user *buffer, size_t count, loff_t if (state->chans_num == 6) { copy_count = 0; state_cnt = 0; - if (ali_write_5_1(state, buffer, cnt, ©_count, + if (ali_write_5_1(state, buffer, cnt, ©_count, &state_cnt) == -EFAULT) { if (state_cnt) { swptr = (swptr + state_cnt) % dmabuf->dmasize; @@ -2096,7 +2096,7 @@ trident_write(struct file *file, const char __user *buffer, size_t count, loff_t goto out; } } else { - if (copy_from_user(dmabuf->rawbuf + swptr, + if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) { if (!ret) ret = -EFAULT; @@ -2172,7 +2172,7 @@ trident_poll(struct file *file, struct poll_table_struct *wait) if (dmabuf->count >= (signed) dmabuf->fragsize) mask |= POLLOUT | POLLWRNORM; } else { - if ((signed) dmabuf->dmasize >= dmabuf->count + + if ((signed) dmabuf->dmasize >= dmabuf->count + (signed) dmabuf->fragsize) mask |= POLLOUT | POLLWRNORM; } @@ -2227,7 +2227,7 @@ out: } static int -trident_ioctl(struct inode *inode, struct file *file, +trident_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct trident_state *state = (struct trident_state *)file->private_data; @@ -2348,7 +2348,7 @@ trident_ioctl(struct inode *inode, struct file *file, case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */ - ret = put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | + ret = put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | AFMT_U8, p); break; @@ -2379,7 +2379,7 @@ trident_ioctl(struct inode *inode, struct file *file, } } unlock_set_fmt(state); - ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE : + ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE : AFMT_U8, p); break; @@ -2438,7 +2438,7 @@ trident_ioctl(struct inode *inode, struct file *file, stop_adc(state); dmabuf->ready = 0; if (val >= 2) { - if (!((file->f_mode & FMODE_WRITE) && + if (!((file->f_mode & FMODE_WRITE) && (val == 6))) val = 2; dmabuf->fmt |= TRIDENT_FMT_STEREO; @@ -2504,7 +2504,7 @@ trident_ioctl(struct inode *inode, struct file *file, abinfo.fragstotal = dmabuf->numfrag; abinfo.fragments = abinfo.bytes >> dmabuf->fragshift; spin_unlock_irqrestore(&state->card->lock, flags); - ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ? + ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ? -EFAULT : 0; break; @@ -2524,7 +2524,7 @@ trident_ioctl(struct inode *inode, struct file *file, abinfo.fragstotal = dmabuf->numfrag; abinfo.fragments = abinfo.bytes >> dmabuf->fragshift; spin_unlock_irqrestore(&state->card->lock, flags); - ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ? + ret = copy_to_user(argp, &abinfo, sizeof (abinfo)) ? -EFAULT : 0; break; @@ -2533,7 +2533,7 @@ trident_ioctl(struct inode *inode, struct file *file, break; case SNDCTL_DSP_GETCAPS: - ret = put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | + ret = put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP | DSP_CAP_BIND, p); break; @@ -2553,7 +2553,7 @@ trident_ioctl(struct inode *inode, struct file *file, } if (file->f_mode & FMODE_READ) { if (val & PCM_ENABLE_INPUT) { - if (!dmabuf->ready && + if (!dmabuf->ready && (ret = prog_dmabuf_record(state))) break; start_adc(state); @@ -2562,7 +2562,7 @@ trident_ioctl(struct inode *inode, struct file *file, } if (file->f_mode & FMODE_WRITE) { if (val & PCM_ENABLE_OUTPUT) { - if (!dmabuf->ready && + if (!dmabuf->ready && (ret = prog_dmabuf_playback(state))) break; start_dac(state); @@ -2589,7 +2589,7 @@ trident_ioctl(struct inode *inode, struct file *file, if (dmabuf->mapped) dmabuf->count &= dmabuf->fragsize - 1; spin_unlock_irqrestore(&state->card->lock, flags); - ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ? + ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ? -EFAULT : 0; break; @@ -2612,7 +2612,7 @@ trident_ioctl(struct inode *inode, struct file *file, if (dmabuf->mapped) dmabuf->count &= dmabuf->fragsize - 1; spin_unlock_irqrestore(&state->card->lock, flags); - ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ? + ret = copy_to_user(argp, &cinfo, sizeof (cinfo)) ? -EFAULT : 0; break; @@ -2641,17 +2641,17 @@ trident_ioctl(struct inode *inode, struct file *file, break; case SOUND_PCM_READ_CHANNELS: - ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1, + ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1, p); break; case SOUND_PCM_READ_BITS: - ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE : + ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE : AFMT_U8, p); break; case SNDCTL_DSP_GETCHANNELMASK: - ret = put_user(DSP_BIND_FRONT | DSP_BIND_SURR | + ret = put_user(DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE, p); break; @@ -2671,10 +2671,10 @@ trident_ioctl(struct inode *inode, struct file *file, } else { dmabuf->ready = 0; if (file->f_mode & FMODE_READ) - dmabuf->channel->attribute = (CHANNEL_REC | + dmabuf->channel->attribute = (CHANNEL_REC | SRC_ENABLE); if (file->f_mode & FMODE_WRITE) - dmabuf->channel->attribute = (CHANNEL_SPC_PB | + dmabuf->channel->attribute = (CHANNEL_SPC_PB | SRC_ENABLE); dmabuf->channel->attribute |= mask2attr[ffs(val)]; } @@ -2702,6 +2702,7 @@ trident_open(struct inode *inode, struct file *file) struct trident_card *card = devs; struct trident_state *state = NULL; struct dmabuf *dmabuf = NULL; + unsigned long flags; /* Added by Matt Wu 01-05-2001 */ /* TODO: there's some redundacy here wrt the check below */ @@ -2765,8 +2766,8 @@ trident_open(struct inode *inode, struct file *file) init_waitqueue_head(&dmabuf->wait); file->private_data = state; - /* set default sample format. According to OSS Programmer's */ - /* Guide /dev/dsp should be default to unsigned 8-bits, mono, */ + /* set default sample format. According to OSS Programmer's */ + /* Guide /dev/dsp should be default to unsigned 8-bits, mono, */ /* with sample rate 8kHz and /dev/dspW will accept 16-bits sample */ if (file->f_mode & FMODE_WRITE) { dmabuf->fmt &= ~TRIDENT_FMT_MASK; @@ -2779,11 +2780,13 @@ trident_open(struct inode *inode, struct file *file) /* set default channel attribute to normal playback */ dmabuf->channel->attribute = CHANNEL_PB; } + spin_lock_irqsave(&card->lock, flags); trident_set_dac_rate(state, 8000); + spin_unlock_irqrestore(&card->lock, flags); } if (file->f_mode & FMODE_READ) { - /* FIXME: Trident 4d can only record in signed 16-bits stereo, */ + /* FIXME: Trident 4d can only record in signed 16-bits stereo, */ /* 48kHz sample, to be dealed with in trident_set_adc_rate() ?? */ dmabuf->fmt &= ~TRIDENT_FMT_MASK; if ((minor & 0x0f) == SND_DEV_DSP16) @@ -2794,10 +2797,12 @@ trident_open(struct inode *inode, struct file *file) if (card->pci_id == PCI_DEVICE_ID_SI_7018) { /* set default channel attribute to 0x8a80, record from PCM L/R FIFO and mono = (left + right + 1)/2 */ - dmabuf->channel->attribute = (CHANNEL_REC | PCM_LR | + dmabuf->channel->attribute = (CHANNEL_REC | PCM_LR | MONO_MIX); } + spin_lock_irqsave(&card->lock, flags); trident_set_adc_rate(state, 8000); + spin_unlock_irqrestore(&card->lock, flags); /* Added by Matt Wu 01-05-2001 */ if (card->pci_id == PCI_DEVICE_ID_ALI_5451) @@ -3020,7 +3025,7 @@ acquirecodecaccess(struct trident_card *card) break; if (wsemabits == 0) { unlock: - outl(((u32) (wcontrol & 0x1eff) | 0x00004000), + outl(((u32) (wcontrol & 0x1eff) | 0x00004000), TRID_REG(card, ALI_AC97_WRITE)); continue; } @@ -3104,7 +3109,7 @@ ali_ac97_get(struct trident_card *card, int secondary, u8 reg) ncount = 10; while (1) { - if ((inw(TRID_REG(card, ALI_AC97_WRITE)) & ALI_AC97_BUSY_READ) + if ((inw(TRID_REG(card, ALI_AC97_WRITE)) & ALI_AC97_BUSY_READ) != 0) break; if (ncount <= 0) @@ -3112,7 +3117,7 @@ ali_ac97_get(struct trident_card *card, int secondary, u8 reg) if (ncount-- == 1) { pr_debug("ali_ac97_read :try clear busy flag\n"); aud_reg = inl(TRID_REG(card, ALI_AC97_WRITE)); - outl((aud_reg & 0xffff7fff), + outl((aud_reg & 0xffff7fff), TRID_REG(card, ALI_AC97_WRITE)); } udelay(10); @@ -3159,7 +3164,7 @@ ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val) wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE)); wcontrol &= 0xff00; - wcontrol |= (0x8100 | reg); /* bit 8=1: (ali1535 )reserved/ */ + wcontrol |= (0x8100 | reg); /* bit 8=1: (ali1535 )reserved/ */ /* ali1535+ write */ outl((data | wcontrol), TRID_REG(card, ALI_AC97_WRITE)); @@ -3177,7 +3182,7 @@ ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val) break; if (ncount-- == 1) { pr_debug("ali_ac97_set :try clear busy flag!!\n"); - outw(wcontrol & 0x7fff, + outw(wcontrol & 0x7fff, TRID_REG(card, ALI_AC97_WRITE)); } udelay(10); @@ -3382,7 +3387,7 @@ ali_detect_spdif_rate(struct trident_card *card) bval |= 0x1F; outb(bval, TRID_REG(card, ALI_SPDIF_CTRL + 1)); - while (((R1 < 0x0B) || (R1 > 0x0E)) && (R1 != 0x12) && + while (((R1 < 0x0B) || (R1 > 0x0E)) && (R1 != 0x12) && count <= 50000) { count++; @@ -3669,14 +3674,14 @@ ali_save_regs(struct trident_card *card) spin_lock_irqsave(&card->lock, flags); ali_registers.global_regs[0x2c] = inl(TRID_REG(card, T4D_MISCINT)); - //ali_registers.global_regs[0x20] = inl(TRID_REG(card,T4D_START_A)); + //ali_registers.global_regs[0x20] = inl(TRID_REG(card,T4D_START_A)); ali_registers.global_regs[0x21] = inl(TRID_REG(card, T4D_STOP_A)); //disable all IRQ bits outl(ALI_DISABLE_ALL_IRQ, TRID_REG(card, T4D_MISCINT)); for (i = 1; i < ALI_MIXER_REGS; i++) - ali_registers.mixer_regs[i] = ali_ac97_read(card->ac97_codec[0], + ali_registers.mixer_regs[i] = ali_ac97_read(card->ac97_codec[0], i * 2); for (i = 0; i < ALI_GLOBAL_REGS; i++) { @@ -3688,7 +3693,7 @@ ali_save_regs(struct trident_card *card) for (i = 0; i < ALI_CHANNELS; i++) { outb(i, TRID_REG(card, T4D_LFO_GC_CIR)); for (j = 0; j < ALI_CHANNEL_REGS; j++) - ali_registers.channel_regs[i][j] = inl(TRID_REG(card, + ali_registers.channel_regs[i][j] = inl(TRID_REG(card, j * 4 + 0xe0)); } @@ -3707,18 +3712,18 @@ ali_restore_regs(struct trident_card *card) spin_lock_irqsave(&card->lock, flags); for (i = 1; i < ALI_MIXER_REGS; i++) - ali_ac97_write(card->ac97_codec[0], i * 2, + ali_ac97_write(card->ac97_codec[0], i * 2, ali_registers.mixer_regs[i]); for (i = 0; i < ALI_CHANNELS; i++) { outb(i, TRID_REG(card, T4D_LFO_GC_CIR)); for (j = 0; j < ALI_CHANNEL_REGS; j++) - outl(ali_registers.channel_regs[i][j], + outl(ali_registers.channel_regs[i][j], TRID_REG(card, j * 4 + 0xe0)); } for (i = 0; i < ALI_GLOBAL_REGS; i++) { - if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A) || + if ((i * 4 == T4D_MISCINT) || (i * 4 == T4D_STOP_A) || (i * 4 == T4D_START_A)) continue; outl(ali_registers.global_regs[i], TRID_REG(card, i * 4)); @@ -3763,7 +3768,7 @@ ali_alloc_pcm_channel(struct trident_card *card) bank = &card->banks[BANK_A]; - if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & + if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & (ALI_SPDIF_OUT_CH_ENABLE)) { idx = ALI_SPDIF_OUT_CHANNEL; if (!(bank->bitmap & (1 << idx))) { @@ -3774,7 +3779,7 @@ ali_alloc_pcm_channel(struct trident_card *card) } } - for (idx = ALI_PCM_OUT_CHANNEL_FIRST; idx <= ALI_PCM_OUT_CHANNEL_LAST; + for (idx = ALI_PCM_OUT_CHANNEL_FIRST; idx <= ALI_PCM_OUT_CHANNEL_LAST; idx++) { if (!(bank->bitmap & (1 << idx))) { struct trident_channel *channel = &bank->channels[idx]; @@ -3785,9 +3790,9 @@ ali_alloc_pcm_channel(struct trident_card *card) } /* no more free channels avaliable */ -#if 0 +#if 0 printk(KERN_ERR "ali: no more channels available on Bank A.\n"); -#endif /* 0 */ +#endif /* 0 */ return NULL; } @@ -3812,9 +3817,9 @@ ali_alloc_rec_pcm_channel(struct trident_card *card) } /* no free recordable channels avaliable */ -#if 0 +#if 0 printk(KERN_ERR "ali: no recordable channels available on Bank A.\n"); -#endif /* 0 */ +#endif /* 0 */ return NULL; } @@ -3837,14 +3842,14 @@ ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate) break; } - /* select spdif_out */ + /* select spdif_out */ ch_st_sel = inb(TRID_REG(card, ALI_SPDIF_CTRL)) & ALI_SPDIF_OUT_CH_STATUS; - ch_st_sel |= 0x80; /* select right */ + ch_st_sel |= 0x80; /* select right */ outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL)); outb(status_rate | 0x20, TRID_REG(card, ALI_SPDIF_CS + 2)); - ch_st_sel &= (~0x80); /* select left */ + ch_st_sel &= (~0x80); /* select left */ outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL)); outw(status_rate | 0x10, TRID_REG(card, ALI_SPDIF_CS + 2)); } @@ -3881,14 +3886,14 @@ ali_address_interrupt(struct trident_card *card) } } -/* Updating the values of counters of other_states' DMAs without lock +/* Updating the values of counters of other_states' DMAs without lock protection is no harm because all DMAs of multi-channels and interrupt depend on a master state's DMA, and changing the counters of the master state DMA is protected by a spinlock. */ static int -ali_write_5_1(struct trident_state *state, const char __user *buf, - int cnt_for_multi_channel, unsigned int *copy_count, +ali_write_5_1(struct trident_state *state, const char __user *buf, + int cnt_for_multi_channel, unsigned int *copy_count, unsigned int *state_cnt) { @@ -3904,10 +3909,10 @@ ali_write_5_1(struct trident_state *state, const char __user *buf, if ((i = state->multi_channels_adjust_count) > 0) { if (i == 1) { - if (copy_from_user(dmabuf->rawbuf + swptr, + if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s)) return -EFAULT; - seek_offset(swptr, buffer, cnt_for_multi_channel, + seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); i--; (*state_cnt) += sample_s; @@ -3916,10 +3921,10 @@ ali_write_5_1(struct trident_state *state, const char __user *buf, i = i - (state->chans_num - other_dma_nums); for (; (i < other_dma_nums) && (cnt_for_multi_channel > 0); i++) { dmabuf_temp = &state->other_states[i]->dmabuf; - if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, + if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; - seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, + seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); } if (cnt_for_multi_channel == 0) @@ -3928,39 +3933,39 @@ ali_write_5_1(struct trident_state *state, const char __user *buf, if (cnt_for_multi_channel > 0) { loop = cnt_for_multi_channel / (state->chans_num * sample_s); for (i = 0; i < loop; i++) { - if (copy_from_user(dmabuf->rawbuf + swptr, buffer, + if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s * 2)) return -EFAULT; - seek_offset(swptr, buffer, cnt_for_multi_channel, + seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s * 2, *copy_count); (*state_cnt) += (sample_s * 2); dmabuf_temp = &state->other_states[0]->dmabuf; - if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, + if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; - seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, + seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); dmabuf_temp = &state->other_states[1]->dmabuf; - if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, + if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; - seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, + seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); dmabuf_temp = &state->other_states[2]->dmabuf; - if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, + if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; - seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, + seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); dmabuf_temp = &state->other_states[3]->dmabuf; - if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, + if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; - seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, + seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); } @@ -3969,15 +3974,15 @@ ali_write_5_1(struct trident_state *state, const char __user *buf, if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s)) return -EFAULT; - seek_offset(swptr, buffer, cnt_for_multi_channel, + seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); (*state_cnt) += sample_s; if (cnt_for_multi_channel > 0) { - if (copy_from_user(dmabuf->rawbuf + swptr, + if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s)) return -EFAULT; - seek_offset(swptr, buffer, cnt_for_multi_channel, + seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); (*state_cnt) += sample_s; @@ -3986,12 +3991,12 @@ ali_write_5_1(struct trident_state *state, const char __user *buf, loop = state->multi_channels_adjust_count - diff; for (i = 0; i < loop; i++) { dmabuf_temp = &state->other_states[i]->dmabuf; - if (copy_from_user(dmabuf_temp->rawbuf + - dmabuf_temp->swptr, + if (copy_from_user(dmabuf_temp->rawbuf + + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; - seek_offset(dmabuf_temp->swptr, buffer, - cnt_for_multi_channel, + seek_offset(dmabuf_temp->swptr, buffer, + cnt_for_multi_channel, sample_s, *copy_count); } } @@ -4048,11 +4053,11 @@ ali_write_proc(struct file *file, const char __user *buffer, unsigned long count ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL); break; case '1': - ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT | + ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT | ALI_SPDIF_OUT_PCM); break; case '2': - ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT | + ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT | ALI_SPDIF_OUT_NON_PCM); break; case '3': @@ -4077,7 +4082,7 @@ trident_open_mixdev(struct inode *inode, struct file *file) for (card = devs; card != NULL; card = card->next) for (i = 0; i < NR_AC97; i++) - if (card->ac97_codec[i] != NULL && + if (card->ac97_codec[i] != NULL && card->ac97_codec[i]->dev_mixer == minor) goto match; @@ -4091,7 +4096,7 @@ trident_open_mixdev(struct inode *inode, struct file *file) } static int -trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, +trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct ac97_codec *codec = (struct ac97_codec *) file->private_data; @@ -4185,9 +4190,9 @@ trident_ac97_init(struct trident_card *card) /* disable AC97 GPIO interrupt */ outl(0x00, TRID_REG(card, SI_AC97_GPIO)); /* when power up the AC link is in cold reset mode so stop it */ - outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT | SECONDARY_ID, + outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT | SECONDARY_ID, TRID_REG(card, SI_SERIAL_INTF_CTRL)); - /* it take a long time to recover from a cold reset */ + /* it take a long time to recover from a cold reset */ /* (especially when you have more than one codec) */ udelay(2000); ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL)); @@ -4207,9 +4212,9 @@ trident_ac97_init(struct trident_card *card) /* disable AC97 GPIO interrupt */ outl(0x00, TRID_REG(card, SI_AC97_GPIO)); /* when power up, the AC link is in cold reset mode, so stop it */ - outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT, + outl(PCMOUT | SURROUT | CENTEROUT | LFEOUT, TRID_REG(card, SI_SERIAL_INTF_CTRL)); - /* it take a long time to recover from a cold reset (especially */ + /* it take a long time to recover from a cold reset (especially */ /* when you have more than one codec) */ udelay(2000); ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL)); @@ -4221,7 +4226,7 @@ trident_ac97_init(struct trident_card *card) if ((codec = ac97_alloc_codec()) == NULL) return -ENOMEM; - /* initialize some basic codec information, other fields */ + /* initialize some basic codec information, other fields */ /* will be filled in ac97_probe_codec */ codec->private_data = card; codec->id = num_ac97; @@ -4352,8 +4357,8 @@ static inline int trident_register_gameport(struct trident_card *card) { return static inline void trident_unregister_gameport(struct trident_card *card) { } #endif /* SUPPORT_JOYSTICK */ -/* install the driver, we do not allocate hardware channel nor DMA buffer */ -/* now, they are defered until "ACCESS" time (in prog_dmabuf called by */ +/* install the driver, we do not allocate hardware channel nor DMA buffer */ +/* now, they are defered until "ACCESS" time (in prog_dmabuf called by */ /* open/read/write/ioctl/mmap) */ static int __devinit trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) @@ -4376,9 +4381,9 @@ trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) else dma_mask = TRIDENT_DMA_MASK; if (pci_set_dma_mask(pci_dev, dma_mask)) { - printk(KERN_ERR "trident: architecture does not support" - " %s PCI busmaster DMA\n", - pci_dev->device == PCI_DEVICE_ID_ALI_5451 ? + printk(KERN_ERR "trident: architecture does not support" + " %s PCI busmaster DMA\n", + pci_dev->device == PCI_DEVICE_ID_ALI_5451 ? "32-bit" : "30-bit"); goto out; } @@ -4422,7 +4427,7 @@ trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) pci_set_master(pci_dev); - printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %d\n", + printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %d\n", card_names[pci_id->driver_data], card->iobase, card->irq); if (card->pci_id == PCI_DEVICE_ID_ALI_5451) { @@ -4449,9 +4454,9 @@ trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */ card->hwvolctl = 0; - pci_dev_m1533 = pci_find_device(PCI_VENDOR_ID_AL, - PCI_DEVICE_ID_AL_M1533, - pci_dev_m1533); + pci_dev_m1533 = pci_get_device(PCI_VENDOR_ID_AL, + PCI_DEVICE_ID_AL_M1533, + pci_dev_m1533); rc = -ENODEV; if (pci_dev_m1533 == NULL) goto out_proc_fs; @@ -4465,6 +4470,8 @@ trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) bits &= 0xbf; /*clear bit 6 */ pci_write_config_byte(pci_dev_m1533, 0x7b, bits); } + pci_dev_put(pci_dev_m1533); + } else if (card->pci_id == PCI_DEVICE_ID_INTERG_5050) { card->alloc_pcm_channel = cyber_alloc_pcm_channel; card->alloc_rec_pcm_channel = cyber_alloc_pcm_channel; @@ -4482,7 +4489,7 @@ trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) rc = -ENODEV; if (request_irq(card->irq, &trident_interrupt, IRQF_SHARED, card_names[pci_id->driver_data], card)) { - printk(KERN_ERR "trident: unable to allocate irq %d\n", + printk(KERN_ERR "trident: unable to allocate irq %d\n", card->irq); goto out_proc_fs; } @@ -4533,7 +4540,7 @@ trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) printk(KERN_INFO "trident: Running on Alpha system " "type Nautilus\n"); ac97_data = ali_ac97_get(card, 0, AC97_POWER_CONTROL); - ali_ac97_set(card, 0, AC97_POWER_CONTROL, + ali_ac97_set(card, 0, AC97_POWER_CONTROL, ac97_data | ALI_EAPD_POWER_DOWN); } } @@ -4566,7 +4573,7 @@ out_proc_fs: devs = NULL; out_release_region: release_region(iobase, 256); - return rc; + return rc; } static void __devexit @@ -4634,8 +4641,8 @@ static struct pci_driver trident_pci_driver = { static int __init trident_init_module(void) { - printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro " - "5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " " + printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro " + "5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n"); return pci_register_driver(&trident_pci_driver); diff --git a/sound/pci/mixart/mixart_hwdep.c b/sound/pci/mixart/mixart_hwdep.c index 1d9232d2db34..170781a72292 100644 --- a/sound/pci/mixart/mixart_hwdep.c +++ b/sound/pci/mixart/mixart_hwdep.c @@ -24,6 +24,7 @@ #include <linux/interrupt.h> #include <linux/pci.h> #include <linux/firmware.h> +#include <linux/vmalloc.h> #include <asm/io.h> #include <sound/core.h> #include "mixart.h" |