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x86: add map_page and unmap_page to struct dma_mapping_ops

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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>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
FUJITA Tomonori 2009-01-05 23:47:21 +09:00 committed by Ingo Molnar
parent 055bcf99a1
commit abe6602bf1
1 changed files with 8 additions and 0 deletions
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8
arch/x86/include/asm/dma-mapping.h
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@ -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;
};