Messages in this thread Patch in this message | | | From | FUJITA Tomonori <> | Subject | [PATCH 1/8] add map_page and unmap_page to struct dma_mapping_ops | Date | Mon, 5 Jan 2009 23:47:21 +0900 |
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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> --- arch/x86/include/asm/dma-mapping.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index e93265c..2f89d2e 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -8,6 +8,7 @@ #include <linux/kmemcheck.h> #include <linux/scatterlist.h> +#include <linux/dma-attrs.h> #include <asm/io.h> #include <asm/swiotlb.h> #include <asm-generic/dma-coherent.h> @@ -51,6 +52,13 @@ struct dma_mapping_ops { void (*unmap_sg)(struct device *hwdev, struct scatterlist *sg, int nents, int direction); + dma_addr_t (*map_page)(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs); + void (*unmap_page)(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs); int (*dma_supported)(struct device *hwdev, u64 mask); int is_phys; }; -- 1.6.0.6
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