| 1 | #ifndef _ASM_SWIOTLB_H |
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| 2 | #define _ASM_SWIOTLB_H 1 |
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| 3 | |
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| 4 | /* SWIOTLB interface */ |
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| 5 | |
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| 6 | extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, |
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| 7 | int dir); |
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| 8 | extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, |
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| 9 | size_t size, int dir); |
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| 10 | extern void swiotlb_sync_single_for_cpu(struct device *hwdev, |
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| 11 | dma_addr_t dev_addr, |
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| 12 | size_t size, int dir); |
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| 13 | extern void swiotlb_sync_single_for_device(struct device *hwdev, |
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| 14 | dma_addr_t dev_addr, |
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| 15 | size_t size, int dir); |
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| 16 | extern void swiotlb_sync_sg_for_cpu(struct device *hwdev, |
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| 17 | struct scatterlist *sg, int nelems, |
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| 18 | int dir); |
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| 19 | extern void swiotlb_sync_sg_for_device(struct device *hwdev, |
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| 20 | struct scatterlist *sg, int nelems, |
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| 21 | int dir); |
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| 22 | extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, |
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| 23 | int nents, int direction); |
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| 24 | extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, |
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| 25 | int nents, int direction); |
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| 26 | extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr); |
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| 27 | #ifdef CONFIG_HIGHMEM |
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| 28 | extern dma_addr_t swiotlb_map_page(struct device *hwdev, struct page *page, |
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| 29 | unsigned long offset, size_t size, |
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| 30 | enum dma_data_direction direction); |
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| 31 | extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dma_address, |
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| 32 | size_t size, enum dma_data_direction direction); |
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| 33 | #endif |
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| 34 | extern int swiotlb_dma_supported(struct device *hwdev, u64 mask); |
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| 35 | extern void swiotlb_init(void); |
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| 36 | |
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| 37 | #ifdef CONFIG_SWIOTLB |
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| 38 | extern int swiotlb; |
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| 39 | #else |
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| 40 | #define swiotlb 0 |
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| 41 | #endif |
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| 42 | |
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| 43 | #endif |
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