diff options
Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index d5d8d5c7268..8037013e8fd 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -87,6 +87,21 @@ * DMA Cache Coherency * =================== * + * dma_inv_range(start, end) + * + * Invalidate (discard) the specified virtual address range. + * May not write back any entries. If 'start' or 'end' + * are not cache line aligned, those lines must be written + * back. + * - start - virtual start address + * - end - virtual end address + * + * dma_clean_range(start, end) + * + * Clean (write back) the specified virtual address range. + * - start - virtual start address + * - end - virtual end address + * * dma_flush_range(start, end) * * Clean and invalidate the specified virtual address range. @@ -107,6 +122,8 @@ struct cpu_cache_fns { void (*dma_map_area)(const void *, size_t, int); void (*dma_unmap_area)(const void *, size_t, int); + void (*dma_inv_range)(const void *, const void *); + void (*dma_clean_range)(const void *, const void *); void (*dma_flush_range)(const void *, const void *); }; @@ -133,6 +150,8 @@ extern struct cpu_cache_fns cpu_cache; */ #define dmac_map_area cpu_cache.dma_map_area #define dmac_unmap_area cpu_cache.dma_unmap_area +#define dmac_inv_range cpu_cache.dma_inv_range +#define dmac_clean_range cpu_cache.dma_clean_range #define dmac_flush_range cpu_cache.dma_flush_range #else @@ -151,8 +170,16 @@ extern void __cpuc_flush_dcache_area(void *, size_t); * is visible to DMA, or data written by DMA to system memory is * visible to the CPU. */ +#define dmac_map_area __glue(_CACHE,_dma_map_area) +#define dmac_unmap_area __glue(_CACHE,_dma_unmap_area) +#define dmac_inv_range __glue(_CACHE,_dma_inv_range) +#define dmac_clean_range __glue(_CACHE,_dma_clean_range) +#define dmac_flush_range __glue(_CACHE,_dma_flush_range) + extern void dmac_map_area(const void *, size_t, int); extern void dmac_unmap_area(const void *, size_t, int); +extern void dmac_inv_range(const void *, const void *); +extern void dmac_clean_range(const void *, const void *); extern void dmac_flush_range(const void *, const void *); #endif |