1 #ifndef _ASM_SWIOTLB_H 2 #define _ASM_SWIOTLB_H 1 3 4 #include <asm/dma-mapping.h> 5 6 /* SWIOTLB interface */ 7 8 extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, 9 size_t size, int dir); 10 extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, 11 dma_addr_t *dma_handle, gfp_t flags); 12 extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, 13 size_t size, int dir); 14 extern void swiotlb_sync_single_for_cpu(struct device *hwdev, 15 dma_addr_t dev_addr, 16 size_t size, int dir); 17 extern void swiotlb_sync_single_for_device(struct device *hwdev, 18 dma_addr_t dev_addr, 19 size_t size, int dir); 20 extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev, 21 dma_addr_t dev_addr, 22 unsigned long offset, 23 size_t size, int dir); 24 extern void swiotlb_sync_single_range_for_device(struct device *hwdev, 25 dma_addr_t dev_addr, 26 unsigned long offset, 27 size_t size, int dir); 28 extern void swiotlb_sync_sg_for_cpu(struct device *hwdev, 29 struct scatterlist *sg, int nelems, 30 int dir); 31 extern void swiotlb_sync_sg_for_device(struct device *hwdev, 32 struct scatterlist *sg, int nelems, 33 int dir); 34 extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, 35 int nents, int direction); 36 extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, 37 int nents, int direction); 38 extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr); 39 extern void swiotlb_free_coherent (struct device *hwdev, size_t size, 40 void *vaddr, dma_addr_t dma_handle); 41 extern int swiotlb_dma_supported(struct device *hwdev, u64 mask); 42 extern void swiotlb_init(void); 43 44 extern int swiotlb_force; 45 46 #ifdef CONFIG_SWIOTLB 47 extern int swiotlb; 48 #else 49 #define swiotlb 0 50 #endif 51 52 extern void pci_swiotlb_init(void); 53 54 static inline void dma_mark_clean(void *addr, size_t size) {} 55 56 #endif /* _ASM_SWIOTLB_H */ 57
