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kernel/linux-rt-4.4.41/arch/s390/include/asm/dma-mapping.h 804 Bytes
5113f6f70   김현기   kernel add
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  #ifndef _ASM_S390_DMA_MAPPING_H
  #define _ASM_S390_DMA_MAPPING_H
  
  #include <linux/kernel.h>
  #include <linux/types.h>
  #include <linux/mm.h>
  #include <linux/scatterlist.h>
  #include <linux/dma-attrs.h>
  #include <linux/dma-debug.h>
  #include <linux/io.h>
  
  #define DMA_ERROR_CODE		(~(dma_addr_t) 0x0)
  
  extern struct dma_map_ops s390_dma_ops;
  
  static inline struct dma_map_ops *get_dma_ops(struct device *dev)
  {
  	return &s390_dma_ops;
  }
  
  static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
  				  enum dma_data_direction direction)
  {
  }
  
  #include <asm-generic/dma-mapping-common.h>
  
  static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
  {
  	if (!dev->dma_mask)
  		return false;
  	return addr + size - 1 <= *dev->dma_mask;
  }
  
  #endif /* _ASM_S390_DMA_MAPPING_H */