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[Blackfin] arch: Add dma_map_page and dma_unmap_page stub for MMC SPI compiling 

Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Bryan Wu 2008-04-23 07:41:52 +08:00
parent b4bb68f7d0
commit 9fcdc78c5e
1 changed files with 15 additions and 0 deletions
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15
include/asm-blackfin/dma-mapping.h
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@ -27,6 +27,14 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
enum dma_data_direction direction);
static inline dma_addr_t
dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction dir)
{
return dma_map_single(dev, page_address(page) + offset, size, dir);
}
/*
* Unmap a single streaming mode DMA translation. The dma_addr and size
* must match what was provided for in a previous pci_map_single call. All
@ -38,6 +46,13 @@ extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction direction);
static inline void
dma_unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction dir)
{
dma_unmap_single(dev, dma_addr, size, dir);
}
/*
* Map a set of buffers described by scatterlist in streaming
* mode for DMA. This is the scather-gather version of the