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| author | James Bottomley <James.Bottomley@suse.de> | 2010-01-25 20:42:22 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2010-02-05 21:32:34 +0300 |
| commit | 252a9afff76097667429b583e8b5b170b47665a4 (patch) | |
| tree | 2e61eaf9c662b0c8f0762fc4a90d206915d0244d /arch/arm/include | |
| parent | ef7cc35b0ee03431731186320b18e5da585341ff (diff) | |
| download | linux-252a9afff76097667429b583e8b5b170b47665a4.tar.xz | |
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: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 730aefcfbee3..4ae503cb1b8a 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -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, |