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ARM: dma-mapping: provide per-cpu type map/unmap functions

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Santosh Shilimkar <santosh.shilimkar@ti.com>
This commit is contained in:
Russell King
2009-11-26 16:19:58 +00:00
parent 93f1d629e2
commit a9c9147eb9
24 changed files with 598 additions and 17 deletions
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26
arch/arm/mm/proc-arm1020.S
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@@ -330,6 +330,30 @@ ENTRY(arm1020_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(arm1020_dma_map_area)
add r1, r1, r0
cmp r2, #DMA_TO_DEVICE
beq arm1020_dma_clean_range
bcs arm1020_dma_inv_range
b arm1020_dma_flush_range
ENDPROC(arm1020_dma_map_area)
/*
* dma_unmap_area(start, size, dir)
* - start - kernel virtual start address
* - size - size of region
* - dir - DMA direction
*/
ENTRY(arm1020_dma_unmap_area)
mov pc, lr
ENDPROC(arm1020_dma_unmap_area)
ENTRY(arm1020_cache_fns)
.long arm1020_flush_kern_cache_all
.long arm1020_flush_user_cache_all
@@ -337,6 +361,8 @@ ENTRY(arm1020_cache_fns)
.long arm1020_coherent_kern_range
.long arm1020_coherent_user_range
.long arm1020_flush_kern_dcache_area
.long arm1020_dma_map_area
.long arm1020_dma_unmap_area
.long arm1020_dma_inv_range
.long arm1020_dma_clean_range
.long arm1020_dma_flush_range