LXR linux/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
   6extern struct dma_map_ops *dma_ops;
   7
   8static 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
  15static 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
  21static 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
  27static 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
  32static inline int dma_supported(struct device *dev, u64 mask)
  33{
  34        return get_dma_ops(dev)->dma_supported(dev, mask);
  35}
  36
  37static 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 */
  48