1 #ifndef _ASM_DMA_MAPPING_H 2 #define _ASM_DMA_MAPPING_H 3 4 #include <linux/scatterlist.h> 5 #include <asm/dma-coherence.h> 6 #include <asm/cache.h> 7 8 #ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */ 9 #include <dma-coherence.h> 10 #endif 11 12 extern struct dma_map_ops *mips_dma_map_ops; 13 14 static inline struct dma_map_ops *get_dma_ops(struct device *dev) 15 { 16 if (dev && dev->archdata.dma_ops) 17 return dev->archdata.dma_ops; 18 else 19 return mips_dma_map_ops; 20 } 21 22 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) 23 { 24 if (!dev->dma_mask) 25 return false; 26 27 return addr + size <= *dev->dma_mask; 28 } 29 30 static inline void dma_mark_clean(void *addr, size_t size) {} 31 32 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, 33 enum dma_data_direction direction); 34 35 #define arch_setup_dma_ops arch_setup_dma_ops 36 static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, 37 u64 size, const struct iommu_ops *iommu, 38 bool coherent) 39 { 40 #ifdef CONFIG_DMA_PERDEV_COHERENT 41 dev->archdata.dma_coherent = coherent; 42 #endif 43 } 44 45 #endif /* _ASM_DMA_MAPPING_H */ 46