1 #ifndef _ASM_SWIOTLB_H
2 #define _ASM_SWIOTLB_H 1
3
4 #include <asm/dma-mapping.h>
5
6 /* SWIOTLB interface */
7
8 extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
9 size_t size, int dir);
10 extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
11 dma_addr_t *dma_handle, gfp_t flags);
12 extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
13 size_t size, int dir);
14 extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
15 dma_addr_t dev_addr,
16 size_t size, int dir);
17 extern void swiotlb_sync_single_for_device(struct device *hwdev,
18 dma_addr_t dev_addr,
19 size_t size, int dir);
20 extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev,
21 dma_addr_t dev_addr,
22 unsigned long offset,
23 size_t size, int dir);
24 extern void swiotlb_sync_single_range_for_device(struct device *hwdev,
25 dma_addr_t dev_addr,
26 unsigned long offset,
27 size_t size, int dir);
28 extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
29 struct scatterlist *sg, int nelems,
30 int dir);
31 extern void swiotlb_sync_sg_for_device(struct device *hwdev,
32 struct scatterlist *sg, int nelems,
33 int dir);
34 extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
35 int nents, int direction);
36 extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
37 int nents, int direction);
38 extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr);
39 extern void swiotlb_free_coherent (struct device *hwdev, size_t size,
40 void *vaddr, dma_addr_t dma_handle);
41 extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
42 extern void swiotlb_init(void);
43
44 extern int swiotlb_force;
45
46 #ifdef CONFIG_SWIOTLB
47 extern int swiotlb;
48 #else
49 #define swiotlb 0
50 #endif
51
52 extern void pci_swiotlb_init(void);
53
dma_mark_clean(void * addr,size_t size)54 static inline void dma_mark_clean(void *addr, size_t size) {}
55
56 #endif /* _ASM_SWIOTLB_H */
57