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kernel/linux-rt-4.4.41/arch/mips/include/asm/dma-mapping.h 880 Bytes
5113f6f70   김현기   kernel add
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  #ifndef _ASM_DMA_MAPPING_H
  #define _ASM_DMA_MAPPING_H
  
  #include <linux/scatterlist.h>
  #include <asm/dma-coherence.h>
  #include <asm/cache.h>
  
  #ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
  #include <dma-coherence.h>
  #endif
  
  extern struct dma_map_ops *mips_dma_map_ops;
  
  static inline struct dma_map_ops *get_dma_ops(struct device *dev)
  {
  	if (dev && dev->archdata.dma_ops)
  		return dev->archdata.dma_ops;
  	else
  		return mips_dma_map_ops;
  }
  
  static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
  {
  	if (!dev->dma_mask)
  		return false;
  
  	return addr + size <= *dev->dma_mask;
  }
  
  static inline void dma_mark_clean(void *addr, size_t size) {}
  
  #include <asm-generic/dma-mapping-common.h>
  
  extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
  	       enum dma_data_direction direction);
  
  #endif /* _ASM_DMA_MAPPING_H */