release/src-rt-6.x.4708/linux/linux-2.6.36/arch/alpha/include/asm/dma-mapping.h

   1 #ifndef _ALPHA_DMA_MAPPING_H
   2 #define _ALPHA_DMA_MAPPING_H
   3
   4 #include <linux/dma-attrs.h>
   5
   6 extern struct dma_map_ops *dma_ops;
   7
   8 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
   9 {
  10         return dma_ops;
  11 }
  12
  13 #include <asm-generic/dma-mapping-common.h>
  14
  15 static inline void *dma_alloc_coherent(struct device *dev, size_t size,
  16                                        dma_addr_t *dma_handle, gfp_t gfp)
  17 {
  18         return get_dma_ops(dev)->alloc_coherent(dev, size, dma_handle, gfp);
  19 }
  20
  21 static inline void dma_free_coherent(struct device *dev, size_t size,
  22                                      void *vaddr, dma_addr_t dma_handle)
  23 {
  24         get_dma_ops(dev)->free_coherent(dev, size, vaddr, dma_handle);
  25 }
  26
  27 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
  28 {
  29         return get_dma_ops(dev)->mapping_error(dev, dma_addr);
  30 }
  31
  32 static inline int dma_supported(struct device *dev, u64 mask)
  33 {
  34         return get_dma_ops(dev)->dma_supported(dev, mask);
  35 }
  36
  37 static inline int dma_set_mask(struct device *dev, u64 mask)
  38 {
  39         return get_dma_ops(dev)->set_dma_mask(dev, mask);
  40 }
  41
  42 #define dma_alloc_noncoherent(d, s, h, f)       dma_alloc_coherent(d, s, h, f)
  43 #define dma_free_noncoherent(d, s, v, h)        dma_free_coherent(d, s, v, h)
  44
  45 #define dma_cache_sync(dev, va, size, dir)                ((void)0)
  46
  47 #endif  /* _ALPHA_DMA_MAPPING_H */