1 #ifndef __LINUX_SWIOTLB_H
2 #define __LINUX_SWIOTLB_H
4 #include <linux/types.h>
13 extern void *swiotlb_alloc_boot(size_t bytes, unsigned long nslabs);
14 extern void *swiotlb_alloc(unsigned order, unsigned long nslabs);
17 *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
18 dma_addr_t *dma_handle, gfp_t flags);
21 swiotlb_free_coherent(struct device *hwdev, size_t size,
22 void *vaddr, dma_addr_t dma_handle);
25 swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir);
28 swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
29 size_t size, int dir);
32 swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size,
33 int dir, struct dma_attrs *attrs);
36 swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr,
37 size_t size, int dir, struct dma_attrs *attrs);
40 swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
44 swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
48 swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
49 int dir, struct dma_attrs *attrs);
52 swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
53 int nelems, int dir, struct dma_attrs *attrs);
56 swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
57 size_t size, int dir);
60 swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
64 swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
65 size_t size, int dir);
68 swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
72 swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
73 unsigned long offset, size_t size, int dir);
76 swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
77 unsigned long offset, size_t size,
81 swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
84 swiotlb_dma_supported(struct device *hwdev, u64 mask);
86 #endif /* __LINUX_SWIOTLB_H */