diff options
Diffstat (limited to 'arch/arm/mm/proc-feroceon.S')
| -rw-r--r-- | arch/arm/mm/proc-feroceon.S | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index dbc39383e66a..97e1d784f152 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -367,6 +367,44 @@ ENTRY(feroceon_range_dma_flush_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov pc, lr +/* + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(feroceon_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq feroceon_dma_clean_range + bcs feroceon_dma_inv_range + b feroceon_dma_flush_range +ENDPROC(feroceon_dma_map_area) + +/* + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(feroceon_range_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq feroceon_range_dma_clean_range + bcs feroceon_range_dma_inv_range + b feroceon_range_dma_flush_range +ENDPROC(feroceon_range_dma_map_area) + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(feroceon_dma_unmap_area) + mov pc, lr +ENDPROC(feroceon_dma_unmap_area) + ENTRY(feroceon_cache_fns) .long feroceon_flush_kern_cache_all .long feroceon_flush_user_cache_all @@ -374,6 +412,8 @@ ENTRY(feroceon_cache_fns) .long feroceon_coherent_kern_range .long feroceon_coherent_user_range .long feroceon_flush_kern_dcache_area + .long feroceon_dma_map_area + .long feroceon_dma_unmap_area .long feroceon_dma_inv_range .long feroceon_dma_clean_range .long feroceon_dma_flush_range @@ -385,6 +425,8 @@ ENTRY(feroceon_range_cache_fns) .long feroceon_coherent_kern_range .long feroceon_coherent_user_range .long feroceon_range_flush_kern_dcache_area + .long feroceon_range_dma_map_area + .long feroceon_dma_unmap_area .long feroceon_range_dma_inv_range .long feroceon_range_dma_clean_range .long feroceon_range_dma_flush_range |