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Diffstat (limited to 'arch/xtensa/kernel/pci-dma.c')
-rw-r--r--arch/xtensa/kernel/pci-dma.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 1e68806d6695..6a16decf278f 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -189,7 +189,9 @@ static dma_addr_t xtensa_map_page(struct device *dev, struct page *page,
{
dma_addr_t dma_handle = page_to_phys(page) + offset;
- xtensa_sync_single_for_device(dev, dma_handle, size, dir);
+ if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+ xtensa_sync_single_for_device(dev, dma_handle, size, dir);
+
return dma_handle;
}
@@ -197,7 +199,8 @@ static void xtensa_unmap_page(struct device *dev, dma_addr_t dma_handle,
size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- xtensa_sync_single_for_cpu(dev, dma_handle, size, dir);
+ if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+ xtensa_sync_single_for_cpu(dev, dma_handle, size, dir);
}
static int xtensa_map_sg(struct device *dev, struct scatterlist *sg,