diff options
Diffstat (limited to 'arch/arm/mm/flush.c')
| -rw-r--r-- | arch/arm/mm/flush.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index 0fa9bf388f0..c07222eb5ce 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -18,6 +18,10 @@ #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 @@ -32,10 +36,15 @@ static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr) 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 : : "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES), "r" (zero) : "cc"); +#ifdef CONFIG_ARM_ERRATA_411920 + v6_icache_inval_all(); +#endif } void flush_cache_mm(struct mm_struct *mm) @@ -48,11 +57,16 @@ 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" - " mcr p15, 0, %0, c7, c10, 4" +#endif : : "r" (0) : "cc"); +#ifdef CONFIG_ARM_ERRATA_411920 + v6_icache_inval_all(); +#endif } } @@ -67,11 +81,16 @@ 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" - " mcr p15, 0, %0, c7, c10, 4" +#endif : : "r" (0) : "cc"); +#ifdef CONFIG_ARM_ERRATA_411920 + v6_icache_inval_all(); +#endif } } @@ -192,7 +211,7 @@ void flush_dcache_page(struct page *page) struct address_space *mapping = page_mapping(page); #ifndef CONFIG_SMP - if (mapping && !mapping_mapped(mapping)) + if (!PageHighMem(page) && mapping && !mapping_mapped(mapping)) set_bit(PG_dcache_dirty, &page->flags); else #endif |