diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2010-04-29 16:53:17 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-04-29 16:53:17 -0700 |
| commit | d9c5841e22231e4e49fd0a1004164e6fce59b7a6 (patch) | |
| tree | e1f589c46b3ff79bbe7b1b2469f6362f94576da6 /arch/arm/mm/proc-arm1022.S | |
| parent | b701a47ba48b698976fb2fe05fb285b0edc1d26a (diff) | |
| parent | 5967ed87ade85a421ef814296c3c7f182b08c225 (diff) | |
Merge branch 'x86/asm' into x86/atomic
Merge reason:
Conflict between LOCK_PREFIX_HERE and relative alternatives
pointers
Resolved Conflicts:
arch/x86/include/asm/alternative.h
arch/x86/kernel/alternative.c
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/arm/mm/proc-arm1022.S')
| -rw-r--r-- | arch/arm/mm/proc-arm1022.S | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S index 20a5b1b31a7..ce13e4a827d 100644 --- a/arch/arm/mm/proc-arm1022.S +++ b/arch/arm/mm/proc-arm1022.S @@ -247,7 +247,7 @@ ENTRY(arm1022_flush_kern_dcache_area) * * (same as v4wb) */ -ENTRY(arm1022_dma_inv_range) +arm1022_dma_inv_range: mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE tst r0, #CACHE_DLINESIZE - 1 @@ -273,7 +273,7 @@ ENTRY(arm1022_dma_inv_range) * * (same as v4wb) */ -ENTRY(arm1022_dma_clean_range) +arm1022_dma_clean_range: mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE bic r0, r0, #CACHE_DLINESIZE - 1 @@ -305,6 +305,30 @@ ENTRY(arm1022_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(arm1022_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq arm1022_dma_clean_range + bcs arm1022_dma_inv_range + b arm1022_dma_flush_range +ENDPROC(arm1022_dma_map_area) + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(arm1022_dma_unmap_area) + mov pc, lr +ENDPROC(arm1022_dma_unmap_area) + ENTRY(arm1022_cache_fns) .long arm1022_flush_kern_cache_all .long arm1022_flush_user_cache_all @@ -312,8 +336,8 @@ ENTRY(arm1022_cache_fns) .long arm1022_coherent_kern_range .long arm1022_coherent_user_range .long arm1022_flush_kern_dcache_area - .long arm1022_dma_inv_range - .long arm1022_dma_clean_range + .long arm1022_dma_map_area + .long arm1022_dma_unmap_area .long arm1022_dma_flush_range .align 5 |