Commit 2434bbb3 authored Nov 30, 2008 by Benjamin Herrenschmidt Committed by Paul Mackerras Dec 03, 2008

powerpc: Fix dma_map_sg() cache flushing on non coherent platforms



On PowerPC 4xx or other non cache-coherent platforms, we lost the
appropriate cache flushing in dma_map_sg() when merging the 32 and
64-bit DMA code (commit 4fc665b8,
"powerpc: Merge 32 and 64-bit dma code").  This restores it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

parent f6f7b52e

arch/powerpc/kernel/dma.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,7 @@ static int dma_direct_map_sg(struct device dev, struct scatterlist sgl,
		for_each_sg(sgl, sg, nents, i) {
		sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev);
		sg->dma_length = sg->length;
		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
		}

		return nents;