#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);

extern int swiotlb_force;

#ifdef CONFIG_SWIOTLB

extern int swiotlb;

#else

#define swiotlb 0

#endif

extern void pci_swiotlb_init(void);

#endif /* _ASM_SWTIOLB_H */