LXR linux/arch/s390/include/asm/dma-mapping.h

   1#ifndef _ASM_S390_DMA_MAPPING_H
   2#define _ASM_S390_DMA_MAPPING_H
   3
   4#include <linux/kernel.h>
   5#include <linux/types.h>
   6#include <linux/mm.h>
   7#include <linux/scatterlist.h>
   8#include <linux/dma-attrs.h>
   9#include <linux/dma-debug.h>
  10#include <linux/io.h>
  11
  12#define DMA_ERROR_CODE          (~(dma_addr_t) 0x0)
  13
  14extern struct dma_map_ops s390_dma_ops;
  15
  16static inline struct dma_map_ops *get_dma_ops(struct device *dev)
  17{
  18        return &s390_dma_ops;
  19}
  20
  21static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
  22                                  enum dma_data_direction direction)
  23{
  24}
  25
  26#include <asm-generic/dma-mapping-common.h>
  27
  28static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
  29{
  30        if (!dev->dma_mask)
  31                return false;
  32        return addr + size - 1 <= *dev->dma_mask;
  33}
  34
  35#endif /* _ASM_S390_DMA_MAPPING_H */
  36