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ARM: dma-mapping: split dma_unmap_page() from dma_unmap_single()

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We will need to treat dma_unmap_page() differently from dma_unmap_single()

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Jamie Iles <jamie@jamieiles.com>
This commit is contained in:
Russell King
2009-10-31 16:10:10 +00:00
parent ef1baed887
commit 29cb8d0d24
2 changed files with 23 additions and 6 deletions
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8
arch/arm/include/asm/dma-mapping.h
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@@ -257,9 +257,11 @@ extern int dma_needs_bounce(struct device*, dma_addr_t, size_t);
*/
extern dma_addr_t dma_map_single(struct device *, void *, size_t,
enum dma_data_direction);
extern void dma_unmap_single(struct device *, dma_addr_t, size_t,
enum dma_data_direction);
extern dma_addr_t dma_map_page(struct device *, struct page *,
unsigned long, size_t, enum dma_data_direction);
extern void dma_unmap_single(struct device *, dma_addr_t, size_t,
extern void dma_unmap_page(struct device *, dma_addr_t, size_t,
enum dma_data_direction);
/*
@@ -352,7 +354,6 @@ static inline void dma_unmap_single(struct device *dev, dma_addr_t handle,
{
/* nothing to do */
}
#endif /* CONFIG_DMABOUNCE */
/**
* dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
@@ -371,8 +372,9 @@ static inline void dma_unmap_single(struct device *dev, dma_addr_t handle,
static inline void dma_unmap_page(struct device *dev, dma_addr_t handle,
size_t size, enum dma_data_direction dir)
{
dma_unmap_single(dev, handle, size, dir);
/* nothing to do */
}
#endif /* CONFIG_DMABOUNCE */
/**
* dma_sync_single_range_for_cpu