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-debug.h>
   9 #include <linux/io.h>
  10
  11 extern const struct dma_map_ops s390_pci_dma_ops;
  12
  13 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
  14 {
  15         return &dma_noop_ops;
  16 }
  17
  18 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
  19                                   enum dma_data_direction direction)
  20 {
  21 }
  22
  23 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
  24 {
  25         if (!dev->dma_mask)
  26                 return false;
  27         return addr + size - 1 <= *dev->dma_mask;
  28 }
  29
  30 #endif /* _ASM_S390_DMA_MAPPING_H */