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-rw-r--r--arch/arm/include/asm/cacheflush.h5
-rw-r--r--arch/arm/mm/context.c5
-rw-r--r--arch/arm/mm/flush.c31
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();
}
}