diff options
Diffstat (limited to 'arch/arm/mm/cache-v3.S')
| -rw-r--r-- | arch/arm/mm/cache-v3.S | 52 |
1 files changed, 25 insertions, 27 deletions
diff --git a/arch/arm/mm/cache-v3.S b/arch/arm/mm/cache-v3.S index 8a4abebc478..c2ff3c599fe 100644 --- a/arch/arm/mm/cache-v3.S +++ b/arch/arm/mm/cache-v3.S @@ -72,28 +72,15 @@ ENTRY(v3_coherent_user_range) mov pc, lr /* - * flush_kern_dcache_page(void *page) + * flush_kern_dcache_area(void *page, size_t size) * * Ensure no D cache aliasing occurs, either with itself or * the I cache * - * - addr - page aligned address + * - addr - kernel address + * - size - region size */ -ENTRY(v3_flush_kern_dcache_page) - /* FALLTHROUGH */ - -/* - * 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 - */ -ENTRY(v3_dma_inv_range) +ENTRY(v3_flush_kern_dcache_area) /* FALLTHROUGH */ /* @@ -107,18 +94,29 @@ ENTRY(v3_dma_inv_range) ENTRY(v3_dma_flush_range) mov r0, #0 mcr p15, 0, r0, c7, c0, 0 @ flush ID cache + mov pc, lr + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(v3_dma_unmap_area) + teq r2, #DMA_TO_DEVICE + bne v3_dma_flush_range /* FALLTHROUGH */ /* - * dma_clean_range(start, end) - * - * Clean (write back) the specified virtual address range. - * - * - start - virtual start address - * - end - virtual end address + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction */ -ENTRY(v3_dma_clean_range) +ENTRY(v3_dma_map_area) mov pc, lr +ENDPROC(v3_dma_unmap_area) +ENDPROC(v3_dma_map_area) __INITDATA @@ -129,8 +127,8 @@ ENTRY(v3_cache_fns) .long v3_flush_user_cache_range .long v3_coherent_kern_range .long v3_coherent_user_range - .long v3_flush_kern_dcache_page - .long v3_dma_inv_range - .long v3_dma_clean_range + .long v3_flush_kern_dcache_area + .long v3_dma_map_area + .long v3_dma_unmap_area .long v3_dma_flush_range .size v3_cache_fns, . - v3_cache_fns |