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 */
33