#ifndef _M68K_DMA_MAPPING_H
  #define _M68K_DMA_MAPPING_H

  #include <asm/cache.h>

  struct scatterlist;

  #ifndef CONFIG_MMU_SUN3

  static inline int dma_supported(struct device *dev, u64 mask)
  {
  	return 1;
  }
  
  static inline int dma_set_mask(struct device *dev, u64 mask)
  {
  	return 0;
  }

  static inline int dma_get_cache_alignment(void)
  {
  	return 1 << L1_CACHE_SHIFT;
  }

  static inline int dma_is_consistent(struct device *dev, dma_addr_t dma_addr)

  {
  	return 0;
  }

  extern void *dma_alloc_coherent(struct device *, size_t,

  				dma_addr_t *, gfp_t);

  extern void dma_free_coherent(struct device *, size_t,
  			      void *, dma_addr_t);

  static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,

  					  dma_addr_t *handle, gfp_t flag)

  {
  	return dma_alloc_coherent(dev, size, handle, flag);
  }
  static inline void dma_free_noncoherent(struct device *dev, size_t size,
  					void *addr, dma_addr_t handle)
  {
  	dma_free_coherent(dev, size, addr, handle);
  }

  static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,

  				  enum dma_data_direction dir)
  {
  	/* we use coherent allocation, so not much to do here. */
  }

  extern dma_addr_t dma_map_single(struct device *, void *, size_t,
  				 enum dma_data_direction);
  static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
  				    size_t size, enum dma_data_direction dir)
  {
  }
  
  extern dma_addr_t dma_map_page(struct device *, struct page *,
  			       unsigned long, size_t size,
  			       enum dma_data_direction);
  static inline void dma_unmap_page(struct device *dev, dma_addr_t address,
  				  size_t size, enum dma_data_direction dir)
  {
  }
  
  extern int dma_map_sg(struct device *, struct scatterlist *, int,
  		      enum dma_data_direction);
  static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
  				int nhwentries, enum dma_data_direction dir)
  {
  }
  
  extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t,
  				       enum dma_data_direction);
  extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
  				   enum dma_data_direction);
  
  static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
  					   size_t size, enum dma_data_direction dir)
  {
  }
  
  static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
  				       int nents, enum dma_data_direction dir)
  {
  }
  
  static inline int dma_mapping_error(dma_addr_t handle)
  {
  	return 0;
  }

  #else
  #include <asm-generic/dma-mapping-broken.h>
  #endif

  #endif  /* _M68K_DMA_MAPPING_H */