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- #ifndef __LINUX_SWIOTLB_H
- #define __LINUX_SWIOTLB_H
- #include <linux/types.h>
- struct device;
- struct dma_attrs;
- struct scatterlist;
- extern void
- swiotlb_init(void);
- extern void
- *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
- dma_addr_t *dma_handle, gfp_t flags);
- extern void
- swiotlb_free_coherent(struct device *hwdev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
- extern dma_addr_t
- swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir);
- extern void
- swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir);
- extern dma_addr_t
- swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size,
- int dir, struct dma_attrs *attrs);
- extern void
- swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir, struct dma_attrs *attrs);
- extern int
- swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- int direction);
- extern void
- swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- int direction);
- extern int
- swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
- int dir, struct dma_attrs *attrs);
- extern void
- swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
- int nelems, int dir, struct dma_attrs *attrs);
- extern void
- swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir);
- extern void
- swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
- int nelems, int dir);
- extern void
- swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir);
- extern void
- swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
- int nelems, int dir);
- extern void
- swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
- unsigned long offset, size_t size, int dir);
- extern void
- swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
- unsigned long offset, size_t size,
- int dir);
- extern int
- swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
- extern int
- swiotlb_dma_supported(struct device *hwdev, u64 mask);
- #endif /* __LINUX_SWIOTLB_H */
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