2 #define _ASM_SWTIOLB_H 1
4 #include <linux/config.h>
6 #include <asm/dma-mapping.h>
8 /* SWIOTLB interface */
10 extern dma_addr_t
swiotlb_map_single(struct device
*hwdev
, void *ptr
,
11 size_t size
, int dir
);
12 extern void *swiotlb_alloc_coherent(struct device
*hwdev
, size_t size
,
13 dma_addr_t
*dma_handle
, gfp_t flags
);
14 extern void swiotlb_unmap_single(struct device
*hwdev
, dma_addr_t dev_addr
,
15 size_t size
, int dir
);
16 extern void swiotlb_sync_single_for_cpu(struct device
*hwdev
,
18 size_t size
, int dir
);
19 extern void swiotlb_sync_single_for_device(struct device
*hwdev
,
21 size_t size
, int dir
);
22 extern void swiotlb_sync_single_range_for_cpu(struct device
*hwdev
,
25 size_t size
, int dir
);
26 extern void swiotlb_sync_single_range_for_device(struct device
*hwdev
,
29 size_t size
, int dir
);
30 extern void swiotlb_sync_sg_for_cpu(struct device
*hwdev
,
31 struct scatterlist
*sg
, int nelems
,
33 extern void swiotlb_sync_sg_for_device(struct device
*hwdev
,
34 struct scatterlist
*sg
, int nelems
,
36 extern int swiotlb_map_sg(struct device
*hwdev
, struct scatterlist
*sg
,
37 int nents
, int direction
);
38 extern void swiotlb_unmap_sg(struct device
*hwdev
, struct scatterlist
*sg
,
39 int nents
, int direction
);
40 extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr
);
41 extern void swiotlb_free_coherent (struct device
*hwdev
, size_t size
,
42 void *vaddr
, dma_addr_t dma_handle
);
43 extern int swiotlb_dma_supported(struct device
*hwdev
, u64 mask
);
44 extern void swiotlb_init(void);
52 extern void pci_swiotlb_init(void);
54 #endif /* _ASM_SWTIOLB_H */