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MIPS: Synchronize dma_map_page and dma_map_single

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Synchronize dma_map_page/dma_unmap_page and dma_map_single/dma_unmap_single.
This will reduce unnecessary writebacks and invalidates.

[Ralf: make dma_unmap_page an inline function.]

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto
2009-01-23 00:42:11 +09:00
committed by Ralf Baechle
parent 47740eb887
commit 4f29c057aa
2 changed files with 8 additions and 20 deletions
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9
arch/mips/include/asm/dma-mapping.h
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@@ -24,8 +24,13 @@ extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction direction);
extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction direction);
extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
size_t size, enum dma_data_direction direction);
static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
size_t size, enum dma_data_direction direction)
{
dma_unmap_single(dev, dma_address, size, direction);
}
extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
int nhwentries, enum dma_data_direction direction);
extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,