1 #ifndef __ASM_SH_DMA_MAPPING_H
2 #define __ASM_SH_DMA_MAPPING_H
4 extern struct dma_map_ops *dma_ops;
5 extern void no_iommu_init(void);
7 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
12 #include <asm-generic/dma-mapping-common.h>
14 static inline int dma_supported(struct device *dev, u64 mask)
16 struct dma_map_ops *ops = get_dma_ops(dev);
18 if (ops->dma_supported)
19 return ops->dma_supported(dev, mask);
24 static inline int dma_set_mask(struct device *dev, u64 mask)
26 struct dma_map_ops *ops = get_dma_ops(dev);
28 if (!dev->dma_mask || !dma_supported(dev, mask))
30 if (ops->set_dma_mask)
31 return ops->set_dma_mask(dev, mask);
33 *dev->dma_mask = mask;
38 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
39 enum dma_data_direction dir);
41 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
42 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
44 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
46 struct dma_map_ops *ops = get_dma_ops(dev);
48 debug_dma_mapping_error(dev, dma_addr);
49 if (ops->mapping_error)
50 return ops->mapping_error(dev, dma_addr);
55 /* arch/sh/mm/consistent.c */
56 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
57 dma_addr_t *dma_addr, gfp_t flag,
58 struct dma_attrs *attrs);
59 extern void dma_generic_free_coherent(struct device *dev, size_t size,
60 void *vaddr, dma_addr_t dma_handle,
61 struct dma_attrs *attrs);
63 #endif /* __ASM_SH_DMA_MAPPING_H */