summaryrefslogtreecommitdiffstats
path: root/arch/blackfin/kernel/dma-mapping.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/kernel/dma-mapping.c')
-rw-r--r--arch/blackfin/kernel/dma-mapping.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index 53fbbb61aa86..a27a74a18fb0 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -118,6 +118,10 @@ static int bfin_dma_map_sg(struct device *dev, struct scatterlist *sg_list,
for_each_sg(sg_list, sg, nents, i) {
sg->dma_address = (dma_addr_t) sg_virt(sg);
+
+ if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+ continue;
+
__dma_sync(sg_dma_address(sg), sg_dma_len(sg), direction);
}
@@ -143,7 +147,9 @@ static dma_addr_t bfin_dma_map_page(struct device *dev, struct page *page,
{
dma_addr_t handle = (dma_addr_t)(page_address(page) + offset);
- _dma_sync(handle, size, dir);
+ if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+ _dma_sync(handle, size, dir);
+
return handle;
}