arch/h8300/include/asm/dma-mapping.h

   1 #ifndef _H8300_DMA_MAPPING_H
   2 #define _H8300_DMA_MAPPING_H
   3
   4 #include <asm-generic/dma-coherent.h>
   5
   6 extern struct dma_map_ops h8300_dma_map_ops;
   7
   8 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
   9 {
  10         return &h8300_dma_map_ops;
  11 }
  12
  13 #include <asm-generic/dma-mapping-common.h>
  14
  15 static inline int dma_supported(struct device *dev, u64 mask)
  16 {
  17         return 0;
  18 }
  19
  20 static inline int dma_set_mask(struct device *dev, u64 mask)
  21 {
  22         return 0;
  23 }
  24
  25 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
  26 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
  27
  28 #define dma_alloc_coherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL)
  29
  30 static inline void *dma_alloc_attrs(struct device *dev, size_t size,
  31                                     dma_addr_t *dma_handle, gfp_t flag,
  32                                     struct dma_attrs *attrs)
  33 {
  34         struct dma_map_ops *ops = get_dma_ops(dev);
  35         void *memory;
  36
  37         memory = ops->alloc(dev, size, dma_handle, flag, attrs);
  38         return memory;
  39 }
  40
  41 #define dma_free_coherent(d, s, c, h) dma_free_attrs(d, s, c, h, NULL)
  42
  43 static inline void dma_free_attrs(struct device *dev, size_t size,
  44                                   void *cpu_addr, dma_addr_t dma_handle,
  45                                   struct dma_attrs *attrs)
  46 {
  47         struct dma_map_ops *ops = get_dma_ops(dev);
  48
  49         ops->free(dev, size, cpu_addr, dma_handle, attrs);
  50 }
  51
  52 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
  53 {
  54         return 0;
  55 }
  56
  57 #endif