home *** CD-ROM | disk | FTP | other *** search
/ Mac Easy 2010 May / Mac Life Ubuntu.iso / casper / filesystem.squashfs / usr / src / linux-headers-2.6.28-15 / arch / sparc / include / asm / dma-mapping_32.h < prev    next >
Encoding:
C/C++ Source or Header  |  2008-12-24  |  2.4 KB  |  61 lines
  1. #ifndef _ASM_SPARC_DMA_MAPPING_H
  2. #define _ASM_SPARC_DMA_MAPPING_H
  3.  
  4. #include <linux/types.h>
  5.  
  6. struct device;
  7. struct scatterlist;
  8. struct page;
  9.  
  10. #define DMA_ERROR_CODE    (~(dma_addr_t)0x0)
  11.  
  12. extern int dma_supported(struct device *dev, u64 mask);
  13. extern int dma_set_mask(struct device *dev, u64 dma_mask);
  14. extern void *dma_alloc_coherent(struct device *dev, size_t size,
  15.                 dma_addr_t *dma_handle, gfp_t flag);
  16. extern void dma_free_coherent(struct device *dev, size_t size,
  17.                   void *cpu_addr, dma_addr_t dma_handle);
  18. extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
  19.                  size_t size,
  20.                  enum dma_data_direction direction);
  21. extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
  22.                  size_t size,
  23.                  enum dma_data_direction direction);
  24. extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
  25.                    unsigned long offset, size_t size,
  26.                    enum dma_data_direction direction);
  27. extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
  28.                size_t size, enum dma_data_direction direction);
  29. extern int dma_map_sg(struct device *dev, struct scatterlist *sg,
  30.               int nents, enum dma_data_direction direction);
  31. extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
  32.              int nents, enum dma_data_direction direction);
  33. extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
  34.                     size_t size,
  35.                     enum dma_data_direction direction);
  36. extern void dma_sync_single_for_device(struct device *dev,
  37.                        dma_addr_t dma_handle,
  38.                        size_t size,
  39.                        enum dma_data_direction direction);
  40. extern void dma_sync_single_range_for_cpu(struct device *dev,
  41.                       dma_addr_t dma_handle,
  42.                       unsigned long offset,
  43.                       size_t size,
  44.                       enum dma_data_direction direction);
  45. extern void dma_sync_single_range_for_device(struct device *dev,
  46.                          dma_addr_t dma_handle,
  47.                          unsigned long offset, size_t size,
  48.                          enum dma_data_direction direction);
  49. extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
  50.                 int nelems, enum dma_data_direction direction);
  51. extern void dma_sync_sg_for_device(struct device *dev,
  52.                    struct scatterlist *sg, int nelems,
  53.                    enum dma_data_direction direction);
  54. extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
  55. extern int dma_get_cache_alignment(void);
  56.  
  57. #define dma_alloc_noncoherent    dma_alloc_coherent
  58. #define dma_free_noncoherent    dma_free_coherent
  59.  
  60. #endif /* _ASM_SPARC_DMA_MAPPING_H */
  61.