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5 Commits

Author SHA1 Message Date
Russell King
309dbbabee [ARM] dma: don't touch cache on dma_*_for_cpu() 
As per the dma_unmap_* calls, we don't touch the cache when a DMA
buffer transitions from device to CPU ownership.  Presently, no
problems have been identified with speculative cache prefetching
which in itself is a new feature in later architectures.  We may
have to revisit the DMA API later for these architectures anyway.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2008-09-30 11:01:36 +01:00
Russell King
2638b4dbe7 [ARM] dma: Reduce to one dma_sync_sg_* implementation 
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2008-09-29 10:40:16 +01:00
Russell King
01135d92c1 [ARM] dma: Reduce to one dma_map_sg()/dma_unmap_sg() implementation 
No point having two of these; dma_map_page() can do all the work
for us.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2008-09-25 23:39:24 +01:00
Russell King
afd1a321c4 [ARM] Update dma_map_sg()/dma_unmap_sg() API 
Update the ARM DMA scatter gather APIs for the scatterlist changes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2008-09-25 20:48:45 +01:00
Russell King
0ddbccd118 [ARM] dma: rename consistent.c to dma-mapping.c 
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2008-09-25 15:59:19 +01:00