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