提交 0cb0ae68 编写于 作者: G Glauber Costa 提交者: Ingo Molnar

x86: move dma_unmap_single to common header

i386 base does not need it, so it gets an empty function.
Signed-off-by: NGlauber Costa <gcosta@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
上级 22456b97
......@@ -14,6 +14,7 @@ static dma_addr_t pci32_map_single(struct device *dev, void *ptr,
static const struct dma_mapping_ops pci32_dma_ops = {
.map_single = pci32_map_single,
.unmap_single = NULL,
};
const struct dma_mapping_ops *dma_ops = &pci32_dma_ops;
......
......@@ -66,4 +66,14 @@ dma_map_single(struct device *hwdev, void *ptr, size_t size,
return dma_ops->map_single(hwdev, ptr, size, direction);
}
static inline void
dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
int direction)
{
BUG_ON(!valid_dma_direction(direction));
if (dma_ops->unmap_single)
dma_ops->unmap_single(dev, addr, size, direction);
}
#endif
......@@ -17,13 +17,6 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
static inline void
dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction direction)
{
BUG_ON(!valid_dma_direction(direction));
}
static inline int
dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
enum dma_data_direction direction)
......
......@@ -23,14 +23,6 @@ extern void *dma_alloc_coherent(struct device *dev, size_t size,
extern void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle);
static inline void
dma_unmap_single(struct device *dev, dma_addr_t addr,size_t size,
int direction)
{
BUG_ON(!valid_dma_direction(direction));
dma_ops->unmap_single(dev, addr, size, direction);
}
#define dma_map_page(dev,page,offset,size,dir) \
dma_map_single((dev), page_address(page)+(offset), (size), (dir))
......
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