diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-04-12 09:56:56 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-10-19 08:44:16 +0200 |
| commit | 27744e0077f4c8b40aaa3126256708c21e56655d (patch) | |
| tree | aa63021f5cb2496f84181f408ec892d8f147b68c /kernel/dma | |
| parent | swiotlb: remove the overflow buffer (diff) | |
| download | linux-27744e0077f4c8b40aaa3126256708c21e56655d.tar.xz linux-27744e0077f4c8b40aaa3126256708c21e56655d.zip | |
swiotlb: merge swiotlb_unmap_page and unmap_single
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'kernel/dma')
| -rw-r--r-- | kernel/dma/swiotlb.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 11dbcd80b4a6..15335f3a1bf3 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -765,9 +765,9 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page, * After this call, reads by the cpu to the buffer are guaranteed to see * whatever the device wrote there. */ -static void unmap_single(struct device *hwdev, dma_addr_t dev_addr, - size_t size, enum dma_data_direction dir, - unsigned long attrs) +void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, + size_t size, enum dma_data_direction dir, + unsigned long attrs) { phys_addr_t paddr = dma_to_phys(hwdev, dev_addr); @@ -790,13 +790,6 @@ static void unmap_single(struct device *hwdev, dma_addr_t dev_addr, dma_mark_clean(phys_to_virt(paddr), size); } -void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, - size_t size, enum dma_data_direction dir, - unsigned long attrs) -{ - unmap_single(hwdev, dev_addr, size, dir, attrs); -} - /* * Make physical memory consistent for a single streaming mode DMA translation * after a transfer. @@ -900,7 +893,7 @@ swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl, BUG_ON(dir == DMA_NONE); for_each_sg(sgl, sg, nelems, i) - unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir, + swiotlb_unmap_page(hwdev, sg->dma_address, sg_dma_len(sg), dir, attrs); } |