extern void dma_cache_sync(void *vaddr, size_t size,
enum dma_data_direction direction);
+#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+
+extern int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
+ dma_addr_t device_addr, size_t size, int flags);
+extern void dma_release_declared_memory(struct device *dev);
+extern void * dma_mark_declared_memory_occupied(struct device *dev,
+ dma_addr_t device_addr, size_t size);
+
#endif /* _ASM_DMA_MAPPING_H */