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Commit abe6602b authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by Ingo Molnar
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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: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 055bcf99

arch/x86/include/asm/dma-mapping.h

+8 −0
Original line number Diff line number Diff line
@@ -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;

};