include/asm-generic/dma-mapping.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_GENERIC_DMA_MAPPING_H
   3 #define _ASM_GENERIC_DMA_MAPPING_H
   4
   5 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
   6 {
   7         /*
   8          * Use the non-coherent ops if available.  If an architecture wants a
   9          * more fine-grained selection of operations it will have to implement
  10          * get_arch_dma_ops itself or use the per-device dma_ops.
  11          */
  12 #ifdef CONFIG_DMA_NONCOHERENT_OPS
  13         return &dma_noncoherent_ops;
  14 #else
  15         return &dma_direct_ops;
  16 #endif
  17 }
  18
  19 #endif /* _ASM_GENERIC_DMA_MAPPING_H */