2 #define _ASM_SWIOTLB_H 1
4 #include <linux/config.h>
5 #include <asm/scatterlist.h>
7 /* SWIOTLB interface */
9 extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, size_t size,
11 extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
12 size_t size, int dir);
13 extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
15 size_t size, int dir);
16 extern void swiotlb_sync_single_for_device(struct device *hwdev,
18 size_t size, int dir);
19 extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
20 struct scatterlist *sg, int nelems,
22 extern void swiotlb_sync_sg_for_device(struct device *hwdev,
23 struct scatterlist *sg, int nelems,
25 extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
26 int nents, int direction);
27 extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
28 int nents, int direction);
29 extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr);
30 extern dma_addr_t swiotlb_map_page(struct device *hwdev, struct page *page,
31 unsigned long offset, size_t size,
32 enum dma_data_direction direction);
33 extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dma_address,
34 size_t size, enum dma_data_direction direction);
35 extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
36 extern void swiotlb_init(void);