diff options
Diffstat (limited to 'arch/arm/mm/proc-xscale.S')
| -rw-r--r-- | arch/arm/mm/proc-xscale.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index 93df47265f2..a7999f94bf2 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -363,6 +363,43 @@ ENTRY(xscale_dma_flush_range) mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer mov pc, lr +/* + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(xscale_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq xscale_dma_clean_range + bcs xscale_dma_inv_range + b xscale_dma_flush_range +ENDPROC(xscale_dma_map_area) + +/* + * dma_map_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(xscale_dma_a0_map_area) + add r1, r1, r0 + teq r2, #DMA_TO_DEVICE + beq xscale_dma_clean_range + b xscale_dma_flush_range +ENDPROC(xscsale_dma_a0_map_area) + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(xscale_dma_unmap_area) + mov pc, lr +ENDPROC(xscale_dma_unmap_area) + ENTRY(xscale_cache_fns) .long xscale_flush_kern_cache_all .long xscale_flush_user_cache_all @@ -370,6 +407,8 @@ ENTRY(xscale_cache_fns) .long xscale_coherent_kern_range .long xscale_coherent_user_range .long xscale_flush_kern_dcache_area + .long xscale_dma_map_area + .long xscale_dma_unmap_area .long xscale_dma_inv_range .long xscale_dma_clean_range .long xscale_dma_flush_range @@ -394,6 +433,8 @@ ENTRY(xscale_80200_A0_A1_cache_fns) .long xscale_coherent_kern_range .long xscale_coherent_user_range .long xscale_flush_kern_dcache_area + .long xscale_dma_a0_map_area + .long xscale_dma_unmap_area .long xscale_dma_flush_range .long xscale_dma_clean_range .long xscale_dma_flush_range |