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authorDavid Woodhouse <dwmw2@infradead.org>2007-01-17 18:34:51 -0500
committerDavid Woodhouse <dwmw2@infradead.org>2007-01-17 18:34:51 -0500
commit9cdf083f981b8d37b3212400a359368661385099 (patch)
treeaa15a6a08ad87e650dea40fb59b3180bef0d345b /arch/arm/mm/proc-xsc3.S
parente499e01d234a31d59679b7b1e1cf628d917ba49a (diff)
parenta8b3485287731978899ced11f24628c927890e78 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/arm/mm/proc-xsc3.S')
-rw-r--r--arch/arm/mm/proc-xsc3.S21
1 files changed, 8 insertions, 13 deletions
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 4ace2d8090c7..94a58455f346 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -2,7 +2,7 @@
2 * linux/arch/arm/mm/proc-xsc3.S 2 * linux/arch/arm/mm/proc-xsc3.S
3 * 3 *
4 * Original Author: Matthew Gilbert 4 * Original Author: Matthew Gilbert
5 * Current Maintainer: Deepak Saxena <dsaxena@plexity.net> 5 * Current Maintainer: Lennert Buytenhek <buytenh@wantstofly.org>
6 * 6 *
7 * Copyright 2004 (C) Intel Corp. 7 * Copyright 2004 (C) Intel Corp.
8 * Copyright 2005 (c) MontaVista Software, Inc. 8 * Copyright 2005 (c) MontaVista Software, Inc.
@@ -27,7 +27,7 @@
27#include <linux/linkage.h> 27#include <linux/linkage.h>
28#include <linux/init.h> 28#include <linux/init.h>
29#include <asm/assembler.h> 29#include <asm/assembler.h>
30#include <asm/procinfo.h> 30#include <asm/elf.h>
31#include <asm/hardware.h> 31#include <asm/hardware.h>
32#include <asm/pgtable.h> 32#include <asm/pgtable.h>
33#include <asm/pgtable-hwdef.h> 33#include <asm/pgtable-hwdef.h>
@@ -57,11 +57,6 @@
57#define L2_CACHE_ENABLE 1 57#define L2_CACHE_ENABLE 1
58 58
59/* 59/*
60 * Enable the Branch Target Buffer (can cause crashes, see erratum #42.)
61 */
62#define BTB_ENABLE 0
63
64/*
65 * This macro is used to wait for a CP15 write and is needed 60 * This macro is used to wait for a CP15 write and is needed
66 * when we have to ensure that the last operation to the co-pro 61 * when we have to ensure that the last operation to the co-pro
67 * was completed before continuing with operation. 62 * was completed before continuing with operation.
@@ -362,17 +357,19 @@ ENTRY(cpu_xsc3_switch_mm)
362 cpwait_ret lr, ip 357 cpwait_ret lr, ip
363 358
364/* 359/*
365 * cpu_xsc3_set_pte(ptep, pte) 360 * cpu_xsc3_set_pte_ext(ptep, pte, ext)
366 * 361 *
367 * Set a PTE and flush it out 362 * Set a PTE and flush it out
368 * 363 *
369 */ 364 */
370 .align 5 365 .align 5
371ENTRY(cpu_xsc3_set_pte) 366ENTRY(cpu_xsc3_set_pte_ext)
372 str r1, [r0], #-2048 @ linux version 367 str r1, [r0], #-2048 @ linux version
373 368
374 bic r2, r1, #0xdf0 @ Keep C, B, coherency bits 369 bic r2, r1, #0xff0 @ Keep C, B bits
375 orr r2, r2, #PTE_TYPE_EXT @ extended page 370 orr r2, r2, #PTE_TYPE_EXT @ extended page
371 tst r1, #L_PTE_SHARED @ Shared?
372 orrne r2, r2, #0x200
376 373
377 eor r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY 374 eor r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY
378 375
@@ -432,9 +429,7 @@ __xsc3_setup:
432 mrc p15, 0, r0, c1, c0, 0 @ get control register 429 mrc p15, 0, r0, c1, c0, 0 @ get control register
433 bic r0, r0, r5 @ .... .... .... ..A. 430 bic r0, r0, r5 @ .... .... .... ..A.
434 orr r0, r0, r6 @ .... .... .... .C.M 431 orr r0, r0, r6 @ .... .... .... .C.M
435#if BTB_ENABLE
436 orr r0, r0, #0x00000800 @ ..VI Z..S .... .... 432 orr r0, r0, #0x00000800 @ ..VI Z..S .... ....
437#endif
438#if L2_CACHE_ENABLE 433#if L2_CACHE_ENABLE
439 orr r0, r0, #0x04000000 @ L2 enable 434 orr r0, r0, #0x04000000 @ L2 enable
440#endif 435#endif
@@ -462,7 +457,7 @@ ENTRY(xsc3_processor_functions)
462 .word cpu_xsc3_do_idle 457 .word cpu_xsc3_do_idle
463 .word cpu_xsc3_dcache_clean_area 458 .word cpu_xsc3_dcache_clean_area
464 .word cpu_xsc3_switch_mm 459 .word cpu_xsc3_switch_mm
465 .word cpu_xsc3_set_pte 460 .word cpu_xsc3_set_pte_ext
466 .size xsc3_processor_functions, . - xsc3_processor_functions 461 .size xsc3_processor_functions, . - xsc3_processor_functions
467 462
468 .section ".rodata" 463 .section ".rodata"