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1da177e4 LT |
1 | #ifndef _ASM_SWIOTLB_H |
2 | #define _ASM_SWTIOLB_H 1 | |
3 | ||
4 | #include <linux/config.h> | |
5 | ||
6 | /* SWIOTLB interface */ | |
7 | ||
8 | extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, | |
9 | int dir); | |
10 | extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, | |
11 | size_t size, int dir); | |
12 | extern void swiotlb_sync_single_for_cpu(struct device *hwdev, | |
13 | dma_addr_t dev_addr, | |
14 | size_t size, int dir); | |
15 | extern void swiotlb_sync_single_for_device(struct device *hwdev, | |
16 | dma_addr_t dev_addr, | |
17 | size_t size, int dir); | |
18 | extern void swiotlb_sync_sg_for_cpu(struct device *hwdev, | |
19 | struct scatterlist *sg, int nelems, | |
20 | int dir); | |
21 | extern void swiotlb_sync_sg_for_device(struct device *hwdev, | |
22 | struct scatterlist *sg, int nelems, | |
23 | int dir); | |
24 | extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, | |
25 | int nents, int direction); | |
26 | extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, | |
27 | int nents, int direction); | |
28 | extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr); | |
29 | extern void *swiotlb_alloc_coherent (struct device *hwdev, size_t size, | |
30 | dma_addr_t *dma_handle, int flags); | |
31 | extern void swiotlb_free_coherent (struct device *hwdev, size_t size, | |
32 | void *vaddr, dma_addr_t dma_handle); | |
33 | ||
34 | #ifdef CONFIG_SWIOTLB | |
35 | extern int swiotlb; | |
36 | #else | |
37 | #define swiotlb 0 | |
38 | #endif | |
39 | ||
40 | #endif |