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- #ifndef __LINUX_SWIOTLB_XEN_H
- #define __LINUX_SWIOTLB_XEN_H
- #include <linux/dma-direction.h>
- #include <linux/swiotlb.h>
- extern int xen_swiotlb_init(int verbose, bool early);
- extern void
- *xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
- dma_addr_t *dma_handle, gfp_t flags,
- struct dma_attrs *attrs);
- extern void
- xen_swiotlb_free_coherent(struct device *hwdev, size_t size,
- void *vaddr, dma_addr_t dma_handle,
- struct dma_attrs *attrs);
- extern dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction dir,
- struct dma_attrs *attrs);
- extern void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, enum dma_data_direction dir,
- struct dma_attrs *attrs);
- extern int
- xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
- int nelems, enum dma_data_direction dir,
- struct dma_attrs *attrs);
- extern void
- xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
- int nelems, enum dma_data_direction dir,
- struct dma_attrs *attrs);
- extern void
- xen_swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, enum dma_data_direction dir);
- extern void
- xen_swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir);
- extern void
- xen_swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, enum dma_data_direction dir);
- extern void
- xen_swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir);
- extern int
- xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
- extern int
- xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
- extern int
- xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
- extern int
- xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
- void *cpu_addr, dma_addr_t dma_addr, size_t size,
- struct dma_attrs *attrs);
- #endif /* __LINUX_SWIOTLB_XEN_H */
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