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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>
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1 changed files with 15 additions and 0 deletions
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@ -27,6 +27,14 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
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extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
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enum dma_data_direction direction);
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static inline dma_addr_t
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dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction dir)
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{
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return dma_map_single(dev, page_address(page) + offset, size, dir);
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}
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/*
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* Unmap a single streaming mode DMA translation. The dma_addr and size
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* must match what was provided for in a previous pci_map_single call. All
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@ -38,6 +46,13 @@ extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
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extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
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enum dma_data_direction direction);
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static inline void
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dma_unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size,
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enum dma_data_direction dir)
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{
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dma_unmap_single(dev, dma_addr, size, dir);
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}
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/*
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* Map a set of buffers described by scatterlist in streaming
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* mode for DMA. This is the scather-gather version of the
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