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x86: add map_page and unmap_page to struct dma_mapping_ops
This patch adds map_page and unmap_page to struct dma_mapping_ops. This is a preparation of struct dma_mapping_ops unification. We use map_page and unmap_page instead of map_single and unmap_single. We will remove map_single and unmap_single hooks in the last patch in this patchset. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -7,6 +7,7 @@
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*/
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#include <linux/scatterlist.h>
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#include <linux/dma-attrs.h>
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#include <asm/io.h>
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#include <asm/swiotlb.h>
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#include <asm-generic/dma-coherent.h>
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@ -50,6 +51,13 @@ struct dma_mapping_ops {
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void (*unmap_sg)(struct device *hwdev,
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struct scatterlist *sg, int nents,
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int direction);
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dma_addr_t (*map_page)(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction dir,
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struct dma_attrs *attrs);
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void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
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size_t size, enum dma_data_direction dir,
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struct dma_attrs *attrs);
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int (*dma_supported)(struct device *hwdev, u64 mask);
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int is_phys;
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};
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