extern void swiotlb_sync_single_for_device(struct device *hwdev,
dma_addr_t dev_addr,
size_t size, int dir);
+extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev,
+ dma_addr_t dev_addr,
+ unsigned long offset,
+ size_t size, int dir);
+extern void swiotlb_sync_single_range_for_device(struct device *hwdev,
+ dma_addr_t dev_addr,
+ unsigned long offset,
+ size_t size, int dir);
extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
struct scatterlist *sg, int nelems,
int dir);