diff options
Diffstat (limited to 'arch/m68k/kernel/dma.c')
| -rw-r--r-- | arch/m68k/kernel/dma.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c index 8cf97cbadc91..07070065a425 100644 --- a/arch/m68k/kernel/dma.c +++ b/arch/m68k/kernel/dma.c @@ -134,7 +134,9 @@ static dma_addr_t m68k_dma_map_page(struct device *dev, struct page *page, { dma_addr_t handle = page_to_phys(page) + offset; - dma_sync_single_for_device(dev, handle, size, dir); + if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC)) + dma_sync_single_for_device(dev, handle, size, dir); + return handle; } @@ -146,6 +148,10 @@ static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist, for_each_sg(sglist, sg, nents, i) { sg->dma_address = sg_phys(sg); + + if (attrs & DMA_ATTR_SKIP_CPU_SYNC) + continue; + dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir); } |