/* Public domain. */

#ifndef _LINUX_IOMMU_H
#define _LINUX_IOMMU_H

struct bus_type;
struct sg_table;

struct iommu_domain {
	bus_dma_tag_t dmat;
};

#define IOMMU_READ	0x0001
#define IOMMU_WRITE	0x0002

size_t	iommu_map_sgtable(struct iommu_domain *, u_long,
	    struct sg_table *, int);
size_t	iommu_unmap(struct iommu_domain *, u_long, size_t);


struct iommu_domain *iommu_get_domain_for_dev(struct device *);
phys_addr_t iommu_iova_to_phys(struct iommu_domain *, dma_addr_t);

struct iommu_domain *iommu_domain_alloc(struct bus_type *);
#define iommu_domain_free(a)
int	iommu_attach_device(struct iommu_domain *, struct device *);
#define iommu_detach_device(a, b)

#endif