arch/sparc/include/asm/dma-mapping_32.h

   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 */