arch/mips/include/asm/dma-mapping.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_DMA_MAPPING_H
   3 #define _ASM_DMA_MAPPING_H
   4
   5 #include <linux/swiotlb.h>
   6
   7 extern const struct dma_map_ops jazz_dma_ops;
   8
   9 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
  10 {
  11 #if defined(CONFIG_MACH_JAZZ)
  12         return &jazz_dma_ops;
  13 #elif defined(CONFIG_SWIOTLB)
  14         return &swiotlb_dma_ops;
  15 #elif defined(CONFIG_DMA_NONCOHERENT_OPS)
  16         return &dma_noncoherent_ops;
  17 #else
  18         return &dma_direct_ops;
  19 #endif
  20 }
  21
  22 #define arch_setup_dma_ops arch_setup_dma_ops
  23 static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
  24                                       u64 size, const struct iommu_ops *iommu,
  25                                       bool coherent)
  26 {
  27 #ifdef CONFIG_DMA_PERDEV_COHERENT
  28         dev->archdata.dma_coherent = coherent;
  29 #endif
  30 }
  31
  32 #endif /* _ASM_DMA_MAPPING_H */