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Commit 252a9aff authored by James Bottomley's avatar James Bottomley Committed by James Bottomley
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arm: add mm API for DMA to vmalloc/vmap areas 



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

Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent ef7cc35b

arch/arm/include/asm/cacheflush.h

+10 −0
Original line number Original line Diff line number Diff line
@@ -432,6 +432,16 @@ static inline void __flush_icache_all(void) 
	    : "r" (0));

	    : "r" (0));

#endif

#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

#define ARCH_HAS_FLUSH_ANON_PAGE

static inline void flush_anon_page(struct vm_area_struct *vma,

static inline void flush_anon_page(struct vm_area_struct *vma,