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author | J. Bruce Fields <bfields@citi.umich.edu> | 2010-03-10 01:22:08 +0300 |
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committer | J. Bruce Fields <bfields@citi.umich.edu> | 2010-03-10 01:22:08 +0300 |
commit | e739cf1da48e841bc5d744a99764c1a668b4bdd2 (patch) | |
tree | 1d39318bbbcdd66ad8cd34823ad9befb7af08b1f /arch/arm/mm/proc-arm920.S | |
parent | e7b184f199fd3c80b618ec8244cbda70857d2779 (diff) | |
parent | 57d54889cd00db2752994b389ba714138652e60c (diff) | |
download | linux-e739cf1da48e841bc5d744a99764c1a668b4bdd2.tar.xz |
Merge commit 'v2.6.34-rc1' into for-2.6.35-incoming
Diffstat (limited to 'arch/arm/mm/proc-arm920.S')
-rw-r--r-- | arch/arm/mm/proc-arm920.S | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S index 471669e2d7cb..8be81992645d 100644 --- a/arch/arm/mm/proc-arm920.S +++ b/arch/arm/mm/proc-arm920.S @@ -239,7 +239,7 @@ ENTRY(arm920_flush_kern_dcache_area) * * (same as v4wb) */ -ENTRY(arm920_dma_inv_range) +arm920_dma_inv_range: tst r0, #CACHE_DLINESIZE - 1 bic r0, r0, #CACHE_DLINESIZE - 1 mcrne p15, 0, r0, c7, c10, 1 @ clean D entry @@ -262,7 +262,7 @@ ENTRY(arm920_dma_inv_range) * * (same as v4wb) */ -ENTRY(arm920_dma_clean_range) +arm920_dma_clean_range: bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE @@ -288,6 +288,30 @@ ENTRY(arm920_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(arm920_dma_map_area) + add r1, r1, r0 + cmp r2, #DMA_TO_DEVICE + beq arm920_dma_clean_range + bcs arm920_dma_inv_range + b arm920_dma_flush_range +ENDPROC(arm920_dma_map_area) + +/* + * dma_unmap_area(start, size, dir) + * - start - kernel virtual start address + * - size - size of region + * - dir - DMA direction + */ +ENTRY(arm920_dma_unmap_area) + mov pc, lr +ENDPROC(arm920_dma_unmap_area) + ENTRY(arm920_cache_fns) .long arm920_flush_kern_cache_all .long arm920_flush_user_cache_all @@ -295,8 +319,8 @@ ENTRY(arm920_cache_fns) .long arm920_coherent_kern_range .long arm920_coherent_user_range .long arm920_flush_kern_dcache_area - .long arm920_dma_inv_range - .long arm920_dma_clean_range + .long arm920_dma_map_area + .long arm920_dma_unmap_area .long arm920_dma_flush_range #endif |