diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 5 | ||||
| -rw-r--r-- | arch/arm/mm/context.c | 5 | ||||
| -rw-r--r-- | arch/arm/mm/flush.c | 31 |
3 files changed, 12 insertions, 29 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index fd03fb63a332..3d0cdd21b882 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -414,9 +414,14 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page static inline void __flush_icache_all(void) { +#ifdef CONFIG_ARM_ERRATA_411920 + extern void v6_icache_inval_all(void); + v6_icache_inval_all(); +#else asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n" : : "r" (0)); +#endif } #define ARCH_HAS_FLUSH_ANON_PAGE diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index 6bda76a43199..a9e22e31eaa1 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -50,10 +50,7 @@ void __new_context(struct mm_struct *mm) isb(); flush_tlb_all(); if (icache_is_vivt_asid_tagged()) { - asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n" - "mcr p15, 0, %0, c7, c5, 6 @ flush BTAC/BTB\n" - : - : "r" (0)); + __flush_icache_all(); dsb(); } } diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index b27942909b23..7f294f307c83 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -18,10 +18,6 @@ #include "mm.h" -#ifdef CONFIG_ARM_ERRATA_411920 -extern void v6_icache_inval_all(void); -#endif - #ifdef CONFIG_CPU_CACHE_VIPT #define ALIAS_FLUSH_START 0xffff4000 @@ -35,16 +31,11 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) flush_tlb_kernel_page(to); asm( "mcrr p15, 0, %1, %0, c14\n" - " mcr p15, 0, %2, c7, c10, 4\n" -#ifndef CONFIG_ARM_ERRATA_411920 - " mcr p15, 0, %2, c7, c5, 0\n" -#endif + " mcr p15, 0, %2, c7, c10, 4" : : "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES), "r" (zero) : "cc"); -#ifdef CONFIG_ARM_ERRATA_411920 - v6_icache_inval_all(); -#endif + __flush_icache_all(); } void flush_cache_mm(struct mm_struct *mm) @@ -57,16 +48,11 @@ void flush_cache_mm(struct mm_struct *mm) if (cache_is_vipt_aliasing()) { asm( "mcr p15, 0, %0, c7, c14, 0\n" - " mcr p15, 0, %0, c7, c10, 4\n" -#ifndef CONFIG_ARM_ERRATA_411920 - " mcr p15, 0, %0, c7, c5, 0\n" -#endif + " mcr p15, 0, %0, c7, c10, 4" : : "r" (0) : "cc"); -#ifdef CONFIG_ARM_ERRATA_411920 - v6_icache_inval_all(); -#endif + __flush_icache_all(); } } @@ -81,16 +67,11 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned if (cache_is_vipt_aliasing()) { asm( "mcr p15, 0, %0, c7, c14, 0\n" - " mcr p15, 0, %0, c7, c10, 4\n" -#ifndef CONFIG_ARM_ERRATA_411920 - " mcr p15, 0, %0, c7, c5, 0\n" -#endif + " mcr p15, 0, %0, c7, c10, 4" : : "r" (0) : "cc"); -#ifdef CONFIG_ARM_ERRATA_411920 - v6_icache_inval_all(); -#endif + __flush_icache_all(); } } |