diff options
Diffstat (limited to 'include/asm-x86_64/swiotlb.h')
| -rw-r--r-- | include/asm-x86_64/swiotlb.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/asm-x86_64/swiotlb.h b/include/asm-x86_64/swiotlb.h new file mode 100644 index 000000000000..36293061f4ed --- /dev/null +++ b/include/asm-x86_64/swiotlb.h | |||
| @@ -0,0 +1,40 @@ | |||
| 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 | ||