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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2009-01-05 23:47:21 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-06 14:06:53 +0100 |
| commit | abe6602bf197167efb3b37161b9c11748fa076e1 (patch) | |
| tree | 669d4b83923ed3ff6b2fc70e5293bc5a7c458786 /arch/x86 | |
| parent | 055bcf99a1471ff0a2ef24863098f946a09c9161 (diff) | |
| download | op-kernel-dev-abe6602bf197167efb3b37161b9c11748fa076e1.zip op-kernel-dev-abe6602bf197167efb3b37161b9c11748fa076e1.tar.gz | |
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>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | 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 4035357..3fe0504 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -7,6 +7,7 @@ */ #include <linux/scatterlist.h> +#include <linux/dma-attrs.h> #include <asm/io.h> #include <asm/swiotlb.h> #include <asm-generic/dma-coherent.h> @@ -50,6 +51,13 @@ 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; }; |
