#ifndef _ASM_SWIOTLB_H #define _ASM_SWTIOLB_H 1 #include <asm/dma-mapping.h> /* SWIOTLB interface */ extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir); extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t flags); extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, int dir); extern void swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr, size_t size, 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_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 void swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, int nelems, int dir); extern void swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, int nelems, int dir); 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_dma_mapping_error(dma_addr_t dma_addr); extern void swiotlb_free_coherent (struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle); extern int swiotlb_dma_supported(struct device *hwdev, u64 mask); extern void swiotlb_init(void); #ifdef CONFIG_SWIOTLB extern int swiotlb; #else #define swiotlb 0 #endif extern void pci_swiotlb_init(void); #endif /* _ASM_SWTIOLB_H */