diff options
Diffstat (limited to 'arch/arm/mm/proc-arm940.S')
| -rw-r--r-- | arch/arm/mm/proc-arm940.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S index 8196b9f401fb..6bb58fca7270 100644 --- a/arch/arm/mm/proc-arm940.S +++ b/arch/arm/mm/proc-arm940.S @@ -233,6 +233,30 @@ ENTRY(arm940_dma_flush_range) mcr p15, 0, ip, 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(arm940_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq arm940_dma_clean_range + bcs arm940_dma_inv_range + b arm940_dma_flush_range +ENDPROC(arm940_dma_map_area) + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(arm940_dma_unmap_area) + mov pc, lr +ENDPROC(arm940_dma_unmap_area) + ENTRY(arm940_cache_fns) .long arm940_flush_kern_cache_all .long arm940_flush_user_cache_all @@ -240,6 +264,8 @@ ENTRY(arm940_cache_fns) .long arm940_coherent_kern_range .long arm940_coherent_user_range .long arm940_flush_kern_dcache_area + .long arm940_dma_map_area + .long arm940_dma_unmap_area .long arm940_dma_inv_range .long arm940_dma_clean_range .long arm940_dma_flush_range |