| #ifndef _ASM_DMA_MAPPING_H |
| #define _ASM_DMA_MAPPING_H |
| |
| #include <asm/scatterlist.h> |
| #include <asm/cache.h> |
| #include <asm-generic/dma-coherent.h> |
| |
| void *dma_alloc_noncoherent(struct device *dev, size_t size, |
| dma_addr_t *dma_handle, gfp_t flag); |
| |
| void dma_free_noncoherent(struct device *dev, size_t size, |
| void *vaddr, dma_addr_t dma_handle); |
| |
| void *dma_alloc_coherent(struct device *dev, size_t size, |
| dma_addr_t *dma_handle, gfp_t flag); |
| |
| void dma_free_coherent(struct device *dev, size_t size, |
| void *vaddr, dma_addr_t dma_handle); |
| |
| extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size, |
| enum dma_data_direction direction); |
| extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, |
| size_t size, enum dma_data_direction direction); |
| extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, |
| enum dma_data_direction direction); |
| extern dma_addr_t dma_map_page(struct device *dev, struct page *page, |
| unsigned long offset, size_t size, enum dma_data_direction direction); |
| |
| static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, |
| size_t size, enum dma_data_direction direction) |
| { |
| dma_unmap_single(dev, dma_address, size, direction); |
| } |
| |
| extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg, |
| int nhwentries, enum dma_data_direction direction); |
| extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, |
| size_t size, enum dma_data_direction direction); |
| extern void dma_sync_single_for_device(struct device *dev, |
| dma_addr_t dma_handle, size_t size, enum dma_data_direction direction); |
| extern void dma_sync_single_range_for_cpu(struct device *dev, |
| dma_addr_t dma_handle, unsigned long offset, size_t size, |
| enum dma_data_direction direction); |
| extern void dma_sync_single_range_for_device(struct device *dev, |
| dma_addr_t dma_handle, unsigned long offset, size_t size, |
| enum dma_data_direction direction); |
| extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, |
| int nelems, enum dma_data_direction direction); |
| extern void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, |
| int nelems, enum dma_data_direction direction); |
| extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr); |
| extern int dma_supported(struct device *dev, u64 mask); |
| |
| static inline int |
| dma_set_mask(struct device *dev, u64 mask) |
| { |
| if(!dev->dma_mask || !dma_supported(dev, mask)) |
| return -EIO; |
| |
| *dev->dma_mask = mask; |
| |
| return 0; |
| } |
| |
| extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |
| enum dma_data_direction direction); |
| |
| #endif /* _ASM_DMA_MAPPING_H */ |