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[PATCH] x86_64: implement dma_sync_single_range_for_{cpu,device}

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Re-implement dma_sync_single_range_for_{cpu,device} for x86_64 using
swiotlb_sync_single_range_for_{cpu,device}.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
John W. Linville 2005-09-29 14:45:52 -07:00 committed by Tony Luck
parent 569c8bf5d8
commit 8d15d19e44
1 changed files with 27 additions and 4 deletions
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31
include/asm-x86_64/dma-mapping.h
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@ -85,10 +85,33 @@ static inline void dma_sync_single_for_device(struct device *hwdev,
flush_write_buffers(); flush_write_buffers();
} }
#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \ static inline void dma_sync_single_range_for_cpu(struct device *hwdev,
dma_sync_single_for_cpu(dev, dma_handle, size, dir) dma_addr_t dma_handle,
#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \ unsigned long offset,
dma_sync_single_for_device(dev, dma_handle, size, dir) size_t size, int direction)
{
if (direction == DMA_NONE)
out_of_line_bug();
if (swiotlb)
return swiotlb_sync_single_range_for_cpu(hwdev,dma_handle,offset,size,direction);
flush_write_buffers();
}
static inline void dma_sync_single_range_for_device(struct device *hwdev,
dma_addr_t dma_handle,
unsigned long offset,
size_t size, int direction)
{
if (direction == DMA_NONE)
out_of_line_bug();
if (swiotlb)
return swiotlb_sync_single_range_for_device(hwdev,dma_handle,offset,size,direction);
flush_write_buffers();
}
static inline void dma_sync_sg_for_cpu(struct device *hwdev, static inline void dma_sync_sg_for_cpu(struct device *hwdev,
struct scatterlist *sg, struct scatterlist *sg,