1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_DMA_MAPPING_H
3 #define _ASM_DMA_MAPPING_H
4 
5 #include <linux/scatterlist.h>
6 #include <asm/dma-coherence.h>
7 #include <asm/cache.h>
8 
9 #ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
10 #include <dma-coherence.h>
11 #endif
12 
13 extern const struct dma_map_ops *mips_dma_map_ops;
14 
15 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
16 {
17 	return mips_dma_map_ops;
18 }
19 
20 #define arch_setup_dma_ops arch_setup_dma_ops
21 static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
22 				      u64 size, const struct iommu_ops *iommu,
23 				      bool coherent)
24 {
25 #ifdef CONFIG_DMA_PERDEV_COHERENT
26 	dev->archdata.dma_coherent = coherent;
27 #endif
28 }
29 
30 #endif /* _ASM_DMA_MAPPING_H */
31