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authorDavid Gibson <david@gibson.dropbear.id.au>2005-11-09 13:38:01 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-10 11:24:04 +1100
commit8882a4da1c932c9f311c9f739e6719adea3e25d9 (patch)
tree1cf5e23780468d35305cde874f31c6223693908f /arch/powerpc/kernel/paca.c
parent584224e4095d8abcf2bef38efacc291be9a44c20 (diff)
downloadlinux-8882a4da1c932c9f311c9f739e6719adea3e25d9.tar.gz
[PATCH] powerpc: Move various ppc64 files with no ppc32 equivalent to powerpc
This patch moves a bunch of files from arch/ppc64 and
include/asm-ppc64 which have no equivalents in ppc32 code into
arch/powerpc and include/asm-powerpc.  The file affected are:
	abs_addr.h
	compat.h
	lppaca.h
	paca.h
	tce.h
	cpu_setup_power4.S
	ioctl32.c
	firmware.c
	pacaData.c

The only changes apart from the move and corresponding Makefile
changes are:
	- #ifndef/#define in includes updated to _ASM_POWERPC_ form
	- trailing whitespace removed
	- comments giving full paths removed
	- pacaData.c renamed paca.c to remove studlyCaps
	- Misplaced { moved in lppaca.h

Built and booted on POWER5 LPAR (ARCH=powerpc and ARCH=ppc64), built
for 32-bit powermac (ARCH=powerpc).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/paca.c')
-rw-r--r--arch/powerpc/kernel/paca.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
new file mode 100644
index 000000000000..179948eb0580
--- /dev/null
+++ b/arch/powerpc/kernel/paca.c
@@ -0,0 +1,143 @@
+/*
+ * c 2001 PPC 64 Team, IBM Corp
+ *
+ *      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.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/threads.h>
+#include <linux/module.h>
+
+#include <asm/processor.h>
+#include <asm/ptrace.h>
+#include <asm/page.h>
+
+#include <asm/lppaca.h>
+#include <asm/iseries/it_lp_queue.h>
+#include <asm/paca.h>
+
+static union {
+	struct systemcfg	data;
+	u8			page[PAGE_SIZE];
+} systemcfg_store __attribute__((__section__(".data.page.aligned")));
+struct systemcfg *systemcfg = &systemcfg_store.data;
+EXPORT_SYMBOL(systemcfg);
+
+
+/* This symbol is provided by the linker - let it fill in the paca
+ * field correctly */
+extern unsigned long __toc_start;
+
+/* The Paca is an array with one entry per processor.  Each contains an
+ * lppaca, which contains the information shared between the
+ * hypervisor and Linux.  Each also contains an ItLpRegSave area which
+ * is used by the hypervisor to save registers.
+ * On systems with hardware multi-threading, there are two threads
+ * per processor.  The Paca array must contain an entry for each thread.
+ * The VPD Areas will give a max logical processors = 2 * max physical
+ * processors.  The processor VPD array needs one entry per physical
+ * processor (not thread).
+ */
+#define PACA_INIT_COMMON(number, start, asrr, asrv)			    \
+	.lock_token = 0x8000,						    \
+	.paca_index = (number),		/* Paca Index */		    \
+	.default_decr = 0x00ff0000,	/* Initial Decr */		    \
+	.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL,		    \
+	.stab_real = (asrr), 		/* Real pointer to segment table */ \
+	.stab_addr = (asrv),		/* Virt pointer to segment table */ \
+	.cpu_start = (start),		/* Processor start */		    \
+	.hw_cpu_id = 0xffff,						    \
+	.lppaca = {							    \
+		.desc = 0xd397d781,	/* "LpPa" */			    \
+		.size = sizeof(struct lppaca),				    \
+		.dyn_proc_status = 2,					    \
+		.decr_val = 0x00ff0000,					    \
+		.fpregs_in_use = 1,					    \
+		.end_of_quantum = 0xfffffffffffffffful,			    \
+		.slb_count = 64,					    \
+		.vmxregs_in_use = 0,					    \
+	},								    \
+
+#ifdef CONFIG_PPC_ISERIES
+#define PACA_INIT_ISERIES(number)					    \
+	.lppaca_ptr = &paca[number].lppaca,				    \
+	.reg_save_ptr = &paca[number].reg_save,				    \
+	.reg_save = {							    \
+		.xDesc = 0xd397d9e2,	/* "LpRS" */			    \
+		.xSize = sizeof(struct ItLpRegSave)			    \
+	}
+
+#define PACA_INIT(number)						    \
+{									    \
+	PACA_INIT_COMMON(number, 0, 0, 0)				    \
+	PACA_INIT_ISERIES(number)					    \
+}
+
+#define BOOTCPU_PACA_INIT(number)					    \
+{									    \
+	PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab)		    \
+	PACA_INIT_ISERIES(number)					    \
+}
+
+#else
+#define PACA_INIT(number)						    \
+{									    \
+	PACA_INIT_COMMON(number, 0, 0, 0)				    \
+}
+
+#define BOOTCPU_PACA_INIT(number)					    \
+{									    \
+	PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab)    \
+}
+#endif
+
+struct paca_struct paca[] = {
+	BOOTCPU_PACA_INIT(0),
+#if NR_CPUS > 1
+	PACA_INIT(  1), PACA_INIT(  2), PACA_INIT(  3),
+#if NR_CPUS > 4
+	PACA_INIT(  4), PACA_INIT(  5), PACA_INIT(  6), PACA_INIT(  7),
+#if NR_CPUS > 8
+	PACA_INIT(  8), PACA_INIT(  9), PACA_INIT( 10), PACA_INIT( 11),
+	PACA_INIT( 12), PACA_INIT( 13), PACA_INIT( 14), PACA_INIT( 15),
+	PACA_INIT( 16), PACA_INIT( 17), PACA_INIT( 18), PACA_INIT( 19),
+	PACA_INIT( 20), PACA_INIT( 21), PACA_INIT( 22), PACA_INIT( 23),
+	PACA_INIT( 24), PACA_INIT( 25), PACA_INIT( 26), PACA_INIT( 27),
+	PACA_INIT( 28), PACA_INIT( 29), PACA_INIT( 30), PACA_INIT( 31),
+#if NR_CPUS > 32
+	PACA_INIT( 32), PACA_INIT( 33), PACA_INIT( 34), PACA_INIT( 35),
+	PACA_INIT( 36), PACA_INIT( 37), PACA_INIT( 38), PACA_INIT( 39),
+	PACA_INIT( 40), PACA_INIT( 41), PACA_INIT( 42), PACA_INIT( 43),
+	PACA_INIT( 44), PACA_INIT( 45), PACA_INIT( 46), PACA_INIT( 47),
+	PACA_INIT( 48), PACA_INIT( 49), PACA_INIT( 50), PACA_INIT( 51),
+	PACA_INIT( 52), PACA_INIT( 53), PACA_INIT( 54), PACA_INIT( 55),
+	PACA_INIT( 56), PACA_INIT( 57), PACA_INIT( 58), PACA_INIT( 59),
+	PACA_INIT( 60), PACA_INIT( 61), PACA_INIT( 62), PACA_INIT( 63),
+#if NR_CPUS > 64
+	PACA_INIT( 64), PACA_INIT( 65), PACA_INIT( 66), PACA_INIT( 67),
+	PACA_INIT( 68), PACA_INIT( 69), PACA_INIT( 70), PACA_INIT( 71),
+	PACA_INIT( 72), PACA_INIT( 73), PACA_INIT( 74), PACA_INIT( 75),
+	PACA_INIT( 76), PACA_INIT( 77), PACA_INIT( 78), PACA_INIT( 79),
+	PACA_INIT( 80), PACA_INIT( 81), PACA_INIT( 82), PACA_INIT( 83),
+	PACA_INIT( 84), PACA_INIT( 85), PACA_INIT( 86), PACA_INIT( 87),
+	PACA_INIT( 88), PACA_INIT( 89), PACA_INIT( 90), PACA_INIT( 91),
+	PACA_INIT( 92), PACA_INIT( 93), PACA_INIT( 94), PACA_INIT( 95),
+	PACA_INIT( 96), PACA_INIT( 97), PACA_INIT( 98), PACA_INIT( 99),
+	PACA_INIT(100), PACA_INIT(101), PACA_INIT(102), PACA_INIT(103),
+	PACA_INIT(104), PACA_INIT(105), PACA_INIT(106), PACA_INIT(107),
+	PACA_INIT(108), PACA_INIT(109), PACA_INIT(110), PACA_INIT(111),
+	PACA_INIT(112), PACA_INIT(113), PACA_INIT(114), PACA_INIT(115),
+	PACA_INIT(116), PACA_INIT(117), PACA_INIT(118), PACA_INIT(119),
+	PACA_INIT(120), PACA_INIT(121), PACA_INIT(122), PACA_INIT(123),
+	PACA_INIT(124), PACA_INIT(125), PACA_INIT(126), PACA_INIT(127),
+#endif
+#endif
+#endif
+#endif
+#endif
+};
+EXPORT_SYMBOL(paca);