lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

26
arch/arm/mm/cache-v4wb.S
View File

@ -216,6 +216,30 @@ ENTRY(v4wb_dma_clean_range)
.globl v4wb_dma_flush_range
.set v4wb_dma_flush_range, v4wb_coherent_kern_range
/*
* dma_map_area(start, size, dir)
* - start - kernel virtual start address
* - size - size of region
* - dir - DMA direction
*/
ENTRY(v4wb_dma_map_area)
add r1, r1, r0
cmp r2, #DMA_TO_DEVICE
beq v4wb_dma_clean_range
bcs v4wb_dma_inv_range
b v4wb_dma_flush_range
ENDPROC(v4wb_dma_map_area)
/*
* dma_unmap_area(start, size, dir)
* - start - kernel virtual start address
* - size - size of region
* - dir - DMA direction
*/
ENTRY(v4wb_dma_unmap_area)
mov pc, lr
ENDPROC(v4wb_dma_unmap_area)
__INITDATA
.type v4wb_cache_fns, #object
@ -226,6 +250,8 @@ ENTRY(v4wb_cache_fns)
.long v4wb_coherent_kern_range
.long v4wb_coherent_user_range
.long v4wb_flush_kern_dcache_area
.long v4wb_dma_map_area
.long v4wb_dma_unmap_area
.long v4wb_dma_inv_range
.long v4wb_dma_clean_range
.long v4wb_dma_flush_range