summary refs log tree commit diff
path: root/arch
AgeCommit message (Collapse)Author
2009-04-07x86, ds: add task tracing selftestMarkus Metzger
Add selftests to cover per-task branch tracing. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144600.329346000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, ds: selftest each cpuMarkus Metzger
Perform debug store selftests on each cpu. Cover both the normal and the _noirq variant of the debug store interface. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144559.394583000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, ds: fix bounds check in ds selftestMarkus Metzger
Fix a bad bounds check in the debug store selftest. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144558.450027000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, ds: fix compiler warningMarkus Metzger
Size_t is defined differently on i386 and x86_64. Change type to avoid compiler warning. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144557.523964000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, bts, hw-branch-tracer: add _noirq variants to the debug store interfaceMarkus Metzger
The hw-branch-tracer uses debug store functions from an on_each_cpu() context, which is simply wrong since the functions may sleep. Add _noirq variants for most functions, which may be called with interrupts disabled. Separate per-cpu and per-task tracing and allow per-cpu tracing to be controlled from any cpu. Make the hw-branch-tracer use the new debug store interface, synchronize with hotplug cpu event using get/put_online_cpus(), and remove the unnecessary spinlock. Make the ptrace bts and the ds selftest code use the new interface. Defer the ds selftest. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144555.658136000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, debugctlmsr: add _on_cpu variants to debugctlmsr functionsMarkus Metzger
Add functions to get and set the debugctlmsr on different cpus. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144554.738772000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, bts: use trace_clock_global() for timestampsMarkus Metzger
Rename the bts_struct timestamp field to event. Use trace_clock_global() for time measurement. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144553.773216000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, bts: fix race between per-task and per-cpu branch tracingMarkus Metzger
Per-task branch tracing installs a debug store context with the traced task. This immediately results in the branch trace control bits to be cleared for the next context switch of that task, if not set before. Either per-cpu or per-task tracing are allowed at the same time. An active per-cpu tracing would be disabled even if the per-task tracing request is rejected and the task debug store context removed. Check the tracing type (per-cpu or per-task) before installing a task debug store context. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: oleg@redhat.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144552.856000000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, bts: wait until traced task has been scheduled outMarkus Metzger
In order to stop branch tracing for a running task, we need to first clear the branch tracing control bits before we may free the tracing buffer. If the traced task is running, the cpu might still trace that task after the branch trace control bits have cleared. Wait until the traced task has been scheduled out before proceeding. A similar problem affects the task debug store context. We first remove the context, then we need to wait until the task has been scheduled out before we can free the context memory. Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144551.919636000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07mm, x86, ptrace, bts: defer branch trace stoppingMarkus Metzger
When a ptraced task is unlinked, we need to stop branch tracing for that task. Since the unlink is called with interrupts disabled, and we need interrupts enabled to stop branch tracing, we defer the work. Collect all branch tracing related stuff in a branch tracing context. Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144550.712401000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07x86, bts: fix race when bts tracer is removedMarkus Metzger
When the bts tracer is removed while the traced task is running, the write to clear the bts tracer pointer races with context switch code. Read the tracer once during a context switch. When a new tracer is installed, the bts tracer is set in the ds context before the tracer is initialized in order to claim the context for that tracer. This may result in write accesses using an uninitialized trace configuration when scheduling timestamps have been requested. Store active tracing flags separately and only set active flags after the tracing configuration has been initialized. Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Cc: roland@redhat.com Cc: eranian@googlemail.com Cc: juan.villacis@intel.com Cc: ak@linux.jf.intel.com LKML-Reference: <20090403144548.881338000@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07Merge branch 'linus' into tracing/hw-branch-tracingIngo Molnar
Merge reason: update to latest tracing and ptrace APIs Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-06Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (53 commits) [MTD] struct device - replace bus_id with dev_name(), dev_set_name() [MTD] [NOR] Fixup for Numonyx M29W128 chips [MTD] mtdpart: Make ecc_stats more realistic. powerpc/85xx: TQM8548: Update DTS file for multi-chip support powerpc: NAND: FSL UPM: document new bindings [MTD] [NAND] FSL-UPM: Add wait flags to support board/chip specific delays [MTD] [NAND] FSL-UPM: add multi chip support [MTD] [NOR] Add device parent info to physmap_of [MTD] [NAND] Add support for NAND on the Socrates board [MTD] [NAND] Add support for 4KiB pages. [MTD] sysfs support should not depend on CONFIG_PROC_FS [MTD] [NAND] Add parent info for CAFÉ controller [MTD] support driver model updates [MTD] driver model updates (part 2) [MTD] driver model updates [MTD] [NAND] move gen_nand's probe function to .devinit.text [MTD] [MAPS] move sa1100 flash's probe function to .devinit.text [MTD] fix use after free in register_mtd_blktrans [MTD] [MAPS] Drop now unused sharpsl-flash map [MTD] ofpart: Check name property to determine partition nodes. ... Manually fix trivial conflict in drivers/mtd/maps/Makefile
2009-04-06FRV: Fix compile breakageAdrian Bunk
This patch fixes the follwing build error caused by commit 7ca43e7564679604d86e9ed834e7bbcffd8a4a3f (mm: use debug_kmap_atomic): ... AS arch/frv/mm/tlb-miss.o In file included from arch/frv/mm/tlb-miss.S:13: ... Assembler messages: include/asm-generic/ioctl.h:73: Error: unrecognized instruction `extern unsigned int __invalid_size_argument_for_IO...' ... Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06Merge git://git.infradead.org/iommu-2.6Linus Torvalds
* git://git.infradead.org/iommu-2.6: drivers/pci/intr_remapping.c: include acpi.h intel-iommu: Fix oops in device_to_iommu() when devices not found. intel-iommu: Handle PCI domains appropriately. intel-iommu: Fix device-to-iommu mapping for PCI-PCI bridges. x2apic/intr-remap: decouple interrupt remapping from x2apic x86, dmar: check if it's initialized before disable queue invalidation intel-iommu: set compatibility format interrupt Intel IOMMU Suspend/Resume Support - Interrupt Remapping Intel IOMMU Suspend/Resume Support - Queued Invalidation Intel IOMMU Suspend/Resume Support - DMAR intel-iommu: Add for_each_iommu() and for_each_active_iommu() macros
2009-04-06powerpc/85xx: TQM8548: Update DTS file for multi-chip supportWolfgang Grandegger
This patch adds multi-chip support for the Micron MT29F8G08FAB NAND flash memory on the TQM8548 modules. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-06[MTD] [NAND] FSL-UPM: add multi chip supportWolfgang Grandegger
This patch adds support for multi-chip NAND devices to the FSL-UPM driver. This requires support for multiple GPIOs for the RNB pins. The NAND chips are selected through address lines defined by the FDT property "fsl,upm-addr-line-cs-offsets". Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-05Merge branch 'for-next' of git://git.o-hand.com/linux-mfdLinus Torvalds
* 'for-next' of git://git.o-hand.com/linux-mfd: mfd: fix da903x warning mfd: fix MAINTAINERS entry mfd: Use the value of the final spin when reading the AUXADC mfd: Storage class should be before const qualifier mfd: PASIC3: supply clock_rate to DS1WM via driver_data mfd: remove DS1WM clock handling mfd: remove unused PASIC3 bus_shift field pxa/magician: remove deprecated .bus_shift from PASIC3 platform_data mfd: convert PASIC3 to use MFD core mfd: convert DS1WM to use MFD core mfd: Support active high IRQs on WM835x mfd: Use bulk read to fill WM8350 register cache mfd: remove duplicated #include from pcf50633
2009-04-05Merge branch 'for-linus' of git://repo.or.cz/cris-mirrorLinus Torvalds
* 'for-linus' of git://repo.or.cz/cris-mirror: CRISv32: Remove extraneous space between -I and the path. cris: convert obsolete hw_interrupt_type to struct irq_chip BUG to BUG_ON changes cpumask: use mm_cpumask() wrapper: cris cpumask: Use accessors code.: cris cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: cris
2009-04-05Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (140 commits) ACPI: processor: use .notify method instead of installing handler directly ACPI: button: use .notify method instead of installing handler directly ACPI: support acpi_device_ops .notify methods toshiba-acpi: remove MAINTAINERS entry ACPI: battery: asynchronous init acer-wmi: Update copyright notice & documentation acer-wmi: Cleanup the failure cleanup handling acer-wmi: Blacklist Acer Aspire One video: build fix thinkpad-acpi: rework brightness support thinkpad-acpi: enhanced debugging messages for the fan subdriver thinkpad-acpi: enhanced debugging messages for the hotkey subdriver thinkpad-acpi: enhanced debugging messages for rfkill subdrivers thinkpad-acpi: restrict access to some firmware LEDs thinkpad-acpi: remove HKEY disable functionality thinkpad-acpi: add new debug helpers and warn of deprecated atts thinkpad-acpi: add missing log levels thinkpad-acpi: cleanup debug helpers thinkpad-acpi: documentation cleanup thinkpad-acpi: drop ibm-acpi alias ...
2009-04-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits) sh: sh7785lcr: Map whole PCI address space. sh: Fix up DSP context save/restore. sh: Fix up number of on-chip DMA channels on SH7091. sh: update defconfigs. sh: Kill off broken direct-mapped cache mode. sh: Wire up ARCH_HAS_DEFAULT_IDLE for cpuidle. sh: Add a command line option for disabling I/O trapping. sh: Select ARCH_HIBERNATION_POSSIBLE. sh: migor: Fix up CEU use flags. input: migor_ts: add wakeup support rtc: rtc-sh: use set_irq_wake() input: sh_keysc: use enable/disable_irq_wake() sh: intc: set_irq_wake() support sh: intc: install enable, disable and shutdown callbacks clocksource: sh_cmt: use remove_irq() and remove clockevent workaround sh: ap325 and Migo-R use new sh_mobile_ceu_info flags sh: Fix up -Wformat-security whining. sh: ap325rxa: Add ov772x support, again. sh: Sanitize asm/mmu.h for assembly use. sh: Tidy up sh7786 pinmux table. ...
2009-04-05Merge branch 'avr32-arch' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 * 'avr32-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: add hardware handshake support to atmel_serial avr32: add RTS/CTS/CLK pin selection for the USARTs Add RTC support for Merisc boards avr32: at32ap700x: setup DMA for AC97C in the machine code avr32: at32ap700x: setup DMA for ABDAC in the machine code Add Merisc board support avr32: use gpio_is_valid() to check USBA vbus_pin I/O line atmel-usba-udc: use gpio_is_valid() to check vbus_pin I/O line avr32: fix timing LCD parameters for EVKLCD10X boards avr32: use GPIO line PB15 on EVKLCD10x boards for backlight avr32: configure MCI detect and write protect pins for EVKLCD10x boards avr32: set pin mask to alternative 18 bpp for EVKLCD10x boards avr32: add pin mask for 18-bit color on the LCD controller avr32: fix 15-bit LCDC pin mask to use MSB lines
2009-04-05Merge branch 'tracing-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits) tracing, net: fix net tree and tracing tree merge interaction tracing, powerpc: fix powerpc tree and tracing tree interaction ring-buffer: do not remove reader page from list on ring buffer free function-graph: allow unregistering twice trace: make argument 'mem' of trace_seq_putmem() const tracing: add missing 'extern' keywords to trace_output.h tracing: provide trace_seq_reserve() blktrace: print out BLK_TN_MESSAGE properly blktrace: extract duplidate code blktrace: fix memory leak when freeing struct blk_io_trace blktrace: fix blk_probes_ref chaos blktrace: make classic output more classic blktrace: fix off-by-one bug blktrace: fix the original blktrace blktrace: fix a race when creating blk_tree_root in debugfs blktrace: fix timestamp in binary output tracing, Text Edit Lock: cleanup tracing: filter fix for TRACE_EVENT_FORMAT events ftrace: Using FTRACE_WARN_ON() to check "freed record" in ftrace_release() x86: kretprobe-booster interrupt emulation code fix ... Fix up trivial conflicts in arch/parisc/include/asm/ftrace.h include/linux/memory.h kernel/extable.c kernel/module.c
2009-04-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumaskLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: (36 commits) cpumask: remove cpumask allocation from idle_balance, fix numa, cpumask: move numa_node_id default implementation to topology.h, fix cpumask: remove cpumask allocation from idle_balance x86: cpumask: x86 mmio-mod.c use cpumask_var_t for downed_cpus x86: cpumask: update 32-bit APM not to mug current->cpus_allowed x86: microcode: cleanup x86: cpumask: use work_on_cpu in arch/x86/kernel/microcode_core.c cpumask: fix CONFIG_CPUMASK_OFFSTACK=y cpu hotunplug crash numa, cpumask: move numa_node_id default implementation to topology.h cpumask: convert node_to_cpumask_map[] to cpumask_var_t cpumask: remove x86 cpumask_t uses. cpumask: use cpumask_var_t in uv_flush_tlb_others. cpumask: remove cpumask_t assignment from vector_allocation_domain() cpumask: make Xen use the new operators. cpumask: clean up summit's send_IPI functions cpumask: use new cpumask functions throughout x86 x86: unify cpu_callin_mask/cpu_callout_mask/cpu_initialized_mask/cpu_sibling_setup_mask cpumask: convert struct cpuinfo_x86's llc_shared_map to cpumask_var_t cpumask: convert node_to_cpumask_map[] to cpumask_var_t x86: unify 32 and 64-bit node_to_cpumask_map ...
2009-04-05Merge ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param: module: use strstarts() strstarts: helper function for !strncmp(str, prefix, strlen(prefix)) arm: allow usage of string functions in linux/string.h module: don't use stop_machine on module load module: create a request_module_nowait() module: include other structures in module version check module: remove the SHF_ALLOC flag on the __versions section. module: clarify the force-loading taint message. module: Export symbols needed for Ksplice Ksplice: Add functions for walking kallsyms symbols module: remove module_text_address() module: __module_address module: Make find_symbol return a struct kernel_symbol kernel/module.c: fix an unused goto label param: fix charp parameters set via sysfs Fix trivial conflicts in kernel/extable.c manually.
2009-04-05Merge branch 'linus' into releaseLen Brown
Conflicts: arch/x86/kernel/cpu/cpufreq/longhaul.c Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05Merge branch 'misc' into releaseLen Brown
2009-04-05Merge branch 'x2apic' into releaseLen Brown
2009-04-05pxa/magician: remove deprecated .bus_shift from PASIC3 platform_dataPhilipp Zabel
The PASIC3 driver now calculates its register spacing from the resource size. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2009-04-04sh: sh7785lcr: Map whole PCI address space.Takashi Yoshii
PCI still doesn't work on sh7785lcr 29bit 256M map mode. On SH7785, PCI -> SHwy address translation is not base+offset but somewhat like base|offset (See HW Manual (rej09b0261) Fig. 13.11). So, you can't export CS2,3,4,5 by 256M at CS2 (results CS0,1,2,3 exported, I guess). There are two candidates. a) 128M@CS2 + 128M@CS4 b) 512M@CS0 Attached patch is B. It maps 512M Byte at 0 independently of memory size. It results CS0 to CS6 and perhaps some more being accessible from PCI. Tested on 7785lcr 29bit 128M map 7785lcr 29bit 256M map (NOT tested on 32bit) Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-04sh: Fix up DSP context save/restore.Michael Trimarchi
There were a number of issues with the DSP context save/restore code, mostly left-over relics from when it was introduced on SH3-DSP with little follow-up testing, resulting in things like task_pt_dspregs() referencing incorrect state on the stack. This follows the MIPS convention of tracking the DSP state in the thread_struct and handling the state save/restore in switch_to() and finish_arch_switch() respectively. The regset interface is also updated, which allows us to finally be rid of task_pt_dspregs() and the special cased task_pt_regs(). Signed-off-by: Michael Trimarchi <michael@evidence.eu.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-04sh: Fix up number of on-chip DMA channels on SH7091.Paul Mundt
This accidentally regressed when the multi-IRQ changes went in, switching SH7091 from 4 to 6 channels. Add SH7091 back in to the 4-channel dependency list. Reported-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-04x2apic/intr-remap: decouple interrupt remapping from x2apicHan, Weidong
interrupt remapping must be enabled before enabling x2apic, but interrupt remapping doesn't depend on x2apic, it can be used separately. Enable interrupt remapping in init_dmars even x2apic is not supported. [dwmw2: Update Kconfig accordingly, fix build with INTR_REMAP && !X2APIC] Signed-off-by: Weidong Han <weidong.han@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-03Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, mtrr: remove debug message x86: disable stack-protector for __restore_processor_state() x86: fix is_io_mapping_possible() build warning on i386 allnoconfig x86, setup: compile with -DDISABLE_BRANCH_PROFILING x86/dma: unify definition of pci_unmap_addr* and pci_unmap_len macros x86, mm: fix misuse of debug_kmap_atomic x86: remove duplicated code with pcpu_need_numa() x86,percpu: fix inverted NUMA test in setup_pcpu_remap() x86: signal: check sas_ss_size instead of sas_ss_flags()
2009-04-03Merge branch 'ipi-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'ipi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: s390: remove arch specific smp_send_stop() panic: clean up kernel/panic.c panic, smp: provide smp_send_stop() wrapper on UP too panic: decrease oops_in_progress only after having done the panic generic-ipi: eliminate WARN_ON()s during oops/panic generic-ipi: cleanups generic-ipi: remove CSD_FLAG_WAIT generic-ipi: remove kmalloc() generic IPI: simplify barriers and locking
2009-04-03x86, ACPI: add support for x2apic ACPI extensionsSuresh Siddha
All logical processors with APIC ID values of 255 and greater will have their APIC reported through Processor X2APIC structure (type-9 entry type) and all logical processors with APIC ID less than 255 will have their APIC reported through legacy Processor Local APIC (type-0 entry type) only. This is the same case even for NMI structure reporting. The Processor X2APIC Affinity structure provides the association between the X2APIC ID of a logical processor and the proximity domain to which the logical processor belongs. For OSPM, Procssor IDs outside the 0-254 range are to be declared as Device() objects in the ACPI namespace. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-04x86, mtrr: remove debug messageIngo Molnar
The MTRR code grew a new debug message which triggers commonly: [ 40.142276] get_mtrr: cpu0 reg00 base=0000000000 size=0000080000 write-back [ 40.142280] get_mtrr: cpu0 reg01 base=0000080000 size=0000040000 write-back [ 40.142284] get_mtrr: cpu0 reg02 base=0000100000 size=0000040000 write-back [ 40.142311] get_mtrr: cpu0 reg00 base=0000000000 size=0000080000 write-back [ 40.142314] get_mtrr: cpu0 reg01 base=0000080000 size=0000040000 write-back [ 40.142317] get_mtrr: cpu0 reg02 base=0000100000 size=0000040000 write-back Remove this annoyance. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits) trivial: Update my email address trivial: NULL noise: drivers/mtd/tests/mtd_*test.c trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h trivial: Fix misspelling of "Celsius". trivial: remove unused variable 'path' in alloc_file() trivial: fix a pdlfush -> pdflush typo in comment trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL trivial: wusb: Storage class should be before const qualifier trivial: drivers/char/bsr.c: Storage class should be before const qualifier trivial: h8300: Storage class should be before const qualifier trivial: fix where cgroup documentation is not correctly referred to trivial: Give the right path in Documentation example trivial: MTD: remove EOL from MODULE_DESCRIPTION trivial: Fix typo in bio_split()'s documentation trivial: PWM: fix of #endif comment trivial: fix typos/grammar errors in Kconfig texts trivial: Fix misspelling of firmware trivial: cgroups: documentation typo and spelling corrections trivial: Update contact info for Jochen Hein trivial: fix typo "resgister" -> "register" ...
2009-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6: (21 commits) xtensa: we don't need to include asm/io.h xtensa: only build platform or variant if they contain a Makefile xtensa: make startup code discardable xtensa: ccount clocksource xtensa: remove platform rtc hooks xtensa: use generic sched_clock() xtensa: platform: s6105 xtensa: let platform override KERNELOFFSET xtensa: s6000 variant xtensa: s6000 variant core definitions xtensa: variant irq set callbacks xtensa: variant-specific code xtensa: nommu support xtensa: add flat support xtensa: enforce slab alignment to maximum register width xtensa: cope with ram beginning at higher addresses xtensa: don't make bootmem bitmap larger than required xtensa: fix init_bootmem_node() argument order xtensa: use correct stack pointer for stack traces xtensa: beat Kconfig into shape ...
2009-04-03x86, PAT: Remove duplicate memtype reserve in pci mmapSuresh Siddha
pci mmap code was doing memtype reserve for a while now. Recently we added memtype tracking in remap_pfn_range, and pci code indirectly calls remap_pfn_range. So, we don't need seperate tracking in pci code anymore. Which means a patch that removes ~50 lines of code :-). Also, recently we found out that the pci tracking is not working as we expect it to work in some cases. Specifically, userlevel X mmap of pci, with some recent version of X, is having a problem with vm_page_prot getting reset. The pci tracking uses vm_page_prot to pass on the protection type from parent to child during fork. a) Parent does a pci mmap b) We look at PAT and get either UC_MINUS or WC mapping for parent c) Store that mapping type in vma vm_page_prot for future use d) This thread does a fork e) Fork results in mmap_ops ->open for the child process f) We get the vm_page_prot from vma and reserve that type for the child process But, between c) and e) above, the vma vm_page_prot is getting reset to zero. This results in PAT reserve failing at the time of fork as in here. http://marc.info/?l=linux-kernel&m=123858163103240&w=2 This cleanup makes the above problem go away as we do not depend on vm_page_prot in our PAT code anymore. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-03Intel IOMMU Suspend/Resume Support - Interrupt RemappingFenghua Yu
This patch enables suspend/resume for interrupt remapping. During suspend, interrupt remapping is disabled. When resume, interrupt remapping is enabled again. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-04-03x86: disable stack-protector for __restore_processor_state()Joseph Cihula
The __restore_processor_state() fn restores %gs on resume from S3. As such, it cannot be protected by the stack-protector guard since %gs will not be correct on function entry. There are only a few other fns in this file and it should not negatively impact kernel security that they will also have the stack-protector guard removed (and so it's not worth moving them to another file). Without this change, S3 resume on a kernel built with CONFIG_CC_STACKPROTECTOR_ALL=y will fail. Signed-off-by: Joseph Cihula <joseph.cihula@intel.com> Tested-by: Chris Wright <chrisw@sous-sol.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Tejun Heo <tj@kernel.org> LKML-Reference: <49D13385.5060900@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-03Merge git://git.infradead.org/iommu-2.6Linus Torvalds
* git://git.infradead.org/iommu-2.6: intel-iommu: Fix address wrap on 32-bit kernel. intel-iommu: Enable DMAR on 32-bit kernel. intel-iommu: fix PCI device detach from virtual machine intel-iommu: VT-d page table to support snooping control bit iommu: Add domain_has_cap iommu_ops intel-iommu: Snooping control support Fixed trivial conflicts in arch/x86/Kconfig and drivers/pci/intel-iommu.c
2009-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: (23 commits) parisc: move dereference_function_descriptor to process.c parisc: Move kernel Elf_Fdesc define to <asm/elf.h> parisc: fix build when ARCH_HAS_KMAP parisc: fix "make tar-pkg" parisc: drivers: fix warnings parisc: select BUG always parisc: asm/pdc.h should include asm/page.h parisc: led: remove proc_dir_entry::owner parisc: fix macro expansion in atomic.h parisc: iosapic: fix build breakage parisc: oops_enter()/oops_exit() in die() parisc: document light weight syscall ABI parisc: blink all or loadavg LEDs on oops parisc: add ftrace (function and graph tracer) functionality parisc: simplify sys_clone() parisc: add LATENCYTOP_SUPPORT and CONFIG_STACKTRACE_SUPPORT parisc: allow to build with 16k default kernel page size parisc: expose 32/64-bit capabilities in cpuinfo parisc: use constants instead of numbers in assembly parisc: fix usage of 32bit PTE page table entries on 32bit kernels ...
2009-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/rtc-pariscLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/rtc-parisc: powerpc/ps3: Add rtc-ps3 powerpc: Hook up rtc-generic, and kill rtc-ppc m68k: Hook up rtc-generic parisc: rtc: Rename rtc-parisc to rtc-generic parisc: rtc: Add missing module alias parisc: rtc: platform_driver_probe() fixups parisc: rtc: get_rtc_time() returns unsigned int
2009-04-03mm: fix misuse of debug_kmap_atomicAkinobu Mita
Commit 7ca43e7564679604d86e9ed834e7bbcffd8a4a3f ("mm: use debug_kmap_atomic") introduced some debug_kmap_atomic() in wrong places. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (41 commits) m68knommu: improve compile arch switch settings m68knommu: fix 5407 ColdFire UART vector setup m68knommu: fix 5307 ColdFire UART vector setup m68knommu: fix 5249 ColdFire UART vector setup m68knommu: fix 5249 ColdFire UART setup m68knommu: fix end of uart table marker m68knommu: switch to using generic_handle_irq() m68k: merge the mmu and non-mmu versions of tlbflush.h m68knommu: introduce basic clk infrastructure m68k: merge the mmu and non-mmu versions of module.h m68knommu: add missing interrupt line definition for UART 2 m68k: merge the mmu and non-mmu versions of mmu_context.h m68k: merge the mmu and non-mmu versions of current.h m68k: merge the mmu and non-mmu versions of div64.h m68k: merge the mmu and non-mmu versions of bugs.h m68k: merge the mmu and non-mmu versions of bug.h m68k: use the mmu version of cache.h for m68knommu as well m68k: use the mmu version of bootinfo.h for m68knommu as well m68k: merge the mmu and non-mmu versions of fb.h m68k: merge the mmu and non-mmu versions of segment.h ...
2009-04-03x86: fix is_io_mapping_possible() build warning on i386 allnoconfigAndrew Morton
i386 allnoconfig: arch/x86/mm/iomap_32.c: In function 'is_io_mapping_possible': arch/x86/mm/iomap_32.c:27: warning: comparison is always false due to limited range of data type Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-03Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] fix build-breaking 7a192ec commit ARM: Add SMSC911X support to Overo platform (V2) arm: update omap_ldp defconfig to use smsc911x arm: update realview defconfigs to use smsc911x arm: update pcm037 defconfig to use smsc911x arm: convert omap ldp platform to use smsc911x arm: convert realview platform to use smsc911x arm: convert pcm037 platform to use smsc911x [ARM] 5444/1: ARM: Realview: Fix event-device multiplicators in localtimer.c [ARM] 5442/1: pxa/cm-x255: fix reverse RDY gpios in PCMCIA driver [ARM] 5441/1: Use pr_err on error paths in at91 pm [ARM] 5440/1: Fix VFP state corruption due to preemption during VFP exceptions [ARM] 5439/1: Do not clear bit 10 of DFSR during abort handling on ARMv6 [ARM] 5437/1: Add documentation for "nohlt" kernel parameter [ARM] 5436/1: ARM: OMAP: Fix compile for rx51 [ARM] arch_reset() now takes a second parameter [ARM] Kirkwood: small L2 code cleanup [ARM] Kirkwood: invalidate L2 cache before enabling it
2009-04-03ACPI: update commentZhang Rui
update ACPI Development Discussion List Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>