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arm: add mm API for DMA to vmalloc/vmap areas

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ARM cannot prevent cache movein, so this patch implements both the
flush and invalidate pieces of the API.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Bottomley
2010-01-25 11:42:22 -06:00
committed by James Bottomley
parent ef7cc35b0e
commit 252a9afff7
1 changed files with 10 additions and 0 deletions
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arch/arm/include/asm/cacheflush.h
+10
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@@ -432,6 +432,16 @@ static inline void __flush_icache_all(void)
: "r" (0));
#endif
}
static inline void flush_kernel_vmap_range(void *addr, int size)
{
if ((cache_is_vivt() || cache_is_vipt_aliasing()))
__cpuc_flush_dcache_area(addr, (size_t)size);
}
static inline void invalidate_kernel_vmap_range(void *addr, int size)
{
if ((cache_is_vivt() || cache_is_vipt_aliasing()))
__cpuc_flush_dcache_area(addr, (size_t)size);
}
#define ARCH_HAS_FLUSH_ANON_PAGE
static inline void flush_anon_page(struct vm_area_struct *vma,