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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-15 00:28:42 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-15 00:28:42 -0400
commitbfcf1ae2b2b1c09ee2c420313afe47ac5cc32d3f (patch)
tree0f39384efa6cecbdf71fc9bbaffd9054d2369dbd /arch/arm/include/asm
parentecbb458a484fd9c455f8feb36c87727e71b4ac1a (diff)
parent98af057092f8f0dabe63c5df08adc2bbfbddb1d2 (diff)
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6126/1: ARM mpcore_wdt: fix build failure and other fixes ARM: 6125/1: ARM TWD: move TWD registers to common header ARM: 6110/1: Fix Thumb-2 kernel builds when UACCESS_WITH_MEMCPY is enabled ARM: 6112/1: Use the Inner Shareable I-cache and BTB ops on ARMv7 SMP ARM: 6111/1: Implement read/write for ownership in the ARMv6 DMA cache ops ARM: 6106/1: Implement copy_to_user_page() for noMMU ARM: 6105/1: Fix the __arm_ioremap_caller() definition in nommu.c
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/cacheflush.h4
-rw-r--r--arch/arm/include/asm/smp_twd.h17
-rw-r--r--arch/arm/include/asm/tlbflush.h29
3 files changed, 49 insertions, 1 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 0d08d4170b64..4656a24058d2 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -371,6 +371,10 @@ static inline void __flush_icache_all(void)
371#ifdef CONFIG_ARM_ERRATA_411920 371#ifdef CONFIG_ARM_ERRATA_411920
372 extern void v6_icache_inval_all(void); 372 extern void v6_icache_inval_all(void);
373 v6_icache_inval_all(); 373 v6_icache_inval_all();
374#elif defined(CONFIG_SMP) && __LINUX_ARM_ARCH__ >= 7
375 asm("mcr p15, 0, %0, c7, c1, 0 @ invalidate I-cache inner shareable\n"
376 :
377 : "r" (0));
374#else 378#else
375 asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n" 379 asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n"
376 : 380 :
diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h
index 7be0978b2625..634f357be6bb 100644
--- a/arch/arm/include/asm/smp_twd.h
+++ b/arch/arm/include/asm/smp_twd.h
@@ -1,6 +1,23 @@
1#ifndef __ASMARM_SMP_TWD_H 1#ifndef __ASMARM_SMP_TWD_H
2#define __ASMARM_SMP_TWD_H 2#define __ASMARM_SMP_TWD_H
3 3
4#define TWD_TIMER_LOAD 0x00
5#define TWD_TIMER_COUNTER 0x04
6#define TWD_TIMER_CONTROL 0x08
7#define TWD_TIMER_INTSTAT 0x0C
8
9#define TWD_WDOG_LOAD 0x20
10#define TWD_WDOG_COUNTER 0x24
11#define TWD_WDOG_CONTROL 0x28
12#define TWD_WDOG_INTSTAT 0x2C
13#define TWD_WDOG_RESETSTAT 0x30
14#define TWD_WDOG_DISABLE 0x34
15
16#define TWD_TIMER_CONTROL_ENABLE (1 << 0)
17#define TWD_TIMER_CONTROL_ONESHOT (0 << 1)
18#define TWD_TIMER_CONTROL_PERIODIC (1 << 1)
19#define TWD_TIMER_CONTROL_IT_ENABLE (1 << 2)
20
4struct clock_event_device; 21struct clock_event_device;
5 22
6extern void __iomem *twd_base; 23extern void __iomem *twd_base;
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index e085e2c545eb..bd863d8608cd 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -46,6 +46,9 @@
46#define TLB_V7_UIS_FULL (1 << 20) 46#define TLB_V7_UIS_FULL (1 << 20)
47#define TLB_V7_UIS_ASID (1 << 21) 47#define TLB_V7_UIS_ASID (1 << 21)
48 48
49/* Inner Shareable BTB operation (ARMv7 MP extensions) */
50#define TLB_V7_IS_BTB (1 << 22)
51
49#define TLB_L2CLEAN_FR (1 << 29) /* Feroceon */ 52#define TLB_L2CLEAN_FR (1 << 29) /* Feroceon */
50#define TLB_DCLEAN (1 << 30) 53#define TLB_DCLEAN (1 << 30)
51#define TLB_WB (1 << 31) 54#define TLB_WB (1 << 31)
@@ -183,7 +186,7 @@
183#endif 186#endif
184 187
185#ifdef CONFIG_SMP 188#ifdef CONFIG_SMP
186#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \ 189#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \
187 TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID) 190 TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID)
188#else 191#else
189#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \ 192#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
@@ -339,6 +342,12 @@ static inline void local_flush_tlb_all(void)
339 dsb(); 342 dsb();
340 isb(); 343 isb();
341 } 344 }
345 if (tlb_flag(TLB_V7_IS_BTB)) {
346 /* flush the branch target cache */
347 asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
348 dsb();
349 isb();
350 }
342} 351}
343 352
344static inline void local_flush_tlb_mm(struct mm_struct *mm) 353static inline void local_flush_tlb_mm(struct mm_struct *mm)
@@ -376,6 +385,12 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
376 asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc"); 385 asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
377 dsb(); 386 dsb();
378 } 387 }
388 if (tlb_flag(TLB_V7_IS_BTB)) {
389 /* flush the branch target cache */
390 asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
391 dsb();
392 isb();
393 }
379} 394}
380 395
381static inline void 396static inline void
@@ -416,6 +431,12 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
416 asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc"); 431 asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
417 dsb(); 432 dsb();
418 } 433 }
434 if (tlb_flag(TLB_V7_IS_BTB)) {
435 /* flush the branch target cache */
436 asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
437 dsb();
438 isb();
439 }
419} 440}
420 441
421static inline void local_flush_tlb_kernel_page(unsigned long kaddr) 442static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
@@ -454,6 +475,12 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
454 dsb(); 475 dsb();
455 isb(); 476 isb();
456 } 477 }
478 if (tlb_flag(TLB_V7_IS_BTB)) {
479 /* flush the branch target cache */
480 asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
481 dsb();
482 isb();
483 }
457} 484}
458 485
459/* 486/*