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

   1 #ifndef ___ASM_SPARC_DMA_MAPPING_H
   2 #define ___ASM_SPARC_DMA_MAPPING_H
   3 #if defined(__sparc__) && defined(__arch64__)
   4 #include <asm/dma-mapping_64.h>
   5 #else
   6 #include <asm/dma-mapping_32.h>
   7 #endif
   8
   9 #define DMA_ERROR_CODE  (~(dma_addr_t)0x0)
  10
  11 extern int dma_supported(struct device *dev, u64 mask);
  12 extern int dma_set_mask(struct device *dev, u64 dma_mask);
  13
  14 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
  15 {
  16         return (dma_addr == DMA_ERROR_CODE);
  17 }
  18
  19 static inline int dma_get_cache_alignment(void)
  20 {
  21         /*
  22          * no easy way to get cache size on all processors, so return
  23          * the maximum possible, to be safe
  24          */
  25         return (1 << INTERNODE_CACHE_SHIFT);
  26 }
  27
  28 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
  29 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
  30 #define dma_is_consistent(d, h) (1)
  31
  32 static inline void dma_sync_single_range_for_cpu(struct device *dev,
  33                                                  dma_addr_t dma_handle,
  34                                                  unsigned long offset,
  35                                                  size_t size,
  36                                                  enum dma_data_direction dir)
  37 {
  38         dma_sync_single_for_cpu(dev, dma_handle+offset, size, dir);
  39 }
  40
  41 static inline void dma_sync_single_range_for_device(struct device *dev,
  42                                                     dma_addr_t dma_handle,
  43                                                     unsigned long offset,
  44                                                     size_t size,
  45                                                     enum dma_data_direction dir)
  46 {
  47         dma_sync_single_for_device(dev, dma_handle+offset, size, dir);
  48 }
  49
  50 #endif