diff options
Diffstat (limited to 'arch/frv/mb93090-mb00/pci-dma.c')
| -rw-r--r-- | arch/frv/mb93090-mb00/pci-dma.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c index f585745b1abc..dba7df918144 100644 --- a/arch/frv/mb93090-mb00/pci-dma.c +++ b/arch/frv/mb93090-mb00/pci-dma.c @@ -40,13 +40,16 @@ static int frv_dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction, unsigned long attrs) { + struct scatterlist *sg; unsigned long dampr2; void *vaddr; int i; - struct scatterlist *sg; BUG_ON(direction == DMA_NONE); + if (attrs & DMA_ATTR_SKIP_CPU_SYNC) + return nents; + dampr2 = __get_DAMPR(2); for_each_sg(sglist, sg, nents, i) { @@ -70,7 +73,9 @@ static dma_addr_t frv_dma_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction direction, unsigned long attrs) { - flush_dcache_page(page); + if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC)) + flush_dcache_page(page); + return (dma_addr_t) page_to_phys(page) + offset; } |