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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 */