include/linux/iommu.h

70 /* Domain feature flags */
72 #define __IOMMU_DOMAIN_DMA_API	(1U << 1)  /* Domain for use in DMA-API
74 #define __IOMMU_DOMAIN_PT	(1U << 2)  /* Domain is identity mapped   */
77  * This are the possible domain-types
172 	IOMMU_DEV_FEAT_AUX,	/* Aux-domain feature */
200  * @domain_alloc: allocate iommu domain
201  * @domain_free: free iommu domain
202  * @attach_dev: attach device to an iommu domain
203  * @detach_dev: detach device from an iommu domain
204  * @map: map a physically contiguous memory region to an iommu domain
206  *             an iommu domain.
208  *          an iommu domain.
209  * @unmap: unmap a physically contiguous memory region from an iommu domain
210  * @unmap_pages: unmap a number of pages of the same size from an iommu domain
211  * @flush_iotlb_all: Synchronously flush all hardware TLBs for this domain
219  *                  group and attached to the groups domain
221  * @domain_get_attr: Query domain attributes
222  * @domain_set_attr: Change domain attributes
226  * @domain_window_enable: Configure and enable a particular window for a domain
227  * @domain_window_disable: Disable a particular window for a domain
229  * @is_attach_deferred: Check if domain attach should be deferred from iommu
234  * @aux_attach/detach_dev: aux-domain specific attach/detach entries.
235  * @aux_get_pasid: get the pasid given an aux-domain
243  * @def_domain_type: device default domain type, return value:
244  *		- IOMMU_DOMAIN_IDENTITY: must use an identity domain
245  *		- IOMMU_DOMAIN_DMA: must use a dma domain
253 	/* Domain allocation and freeing by the iommu driver */
257 	int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
258 	void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
259 	int (*map)(struct iommu_domain *domain, unsigned long iova,
261 	int (*map_pages)(struct iommu_domain *domain, unsigned long iova,
264 	int (*map_sg)(struct iommu_domain *domain, unsigned long iova,
267 	size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
269 	size_t (*unmap_pages)(struct iommu_domain *domain, unsigned long iova,
272 	void (*flush_iotlb_all)(struct iommu_domain *domain);
273 	void (*iotlb_sync_map)(struct iommu_domain *domain, unsigned long iova,
275 	void (*iotlb_sync)(struct iommu_domain *domain,
277 	phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
282 	int (*domain_get_attr)(struct iommu_domain *domain,
284 	int (*domain_set_attr)(struct iommu_domain *domain,
291 				  struct iommu_domain *domain,
295 	int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
297 	void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr);
300 	bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev);
308 	/* Aux-domain specific attach/detach entries */
309 	int (*aux_attach_dev)(struct iommu_domain *domain, struct device *dev);
310 	void (*aux_detach_dev)(struct iommu_domain *domain, struct device *dev);
311 	int (*aux_get_pasid)(struct iommu_domain *domain, struct device *dev);
321 	int (*cache_invalidate)(struct iommu_domain *domain, struct device *dev,
323 	int (*sva_bind_gpasid)(struct iommu_domain *domain,
449 extern void iommu_domain_free(struct iommu_domain *domain);
450 extern int iommu_attach_device(struct iommu_domain *domain,
452 extern void iommu_detach_device(struct iommu_domain *domain,
454 extern int iommu_uapi_cache_invalidate(struct iommu_domain *domain,
458 extern int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain,
460 extern int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain,
462 extern int iommu_sva_unbind_gpasid(struct iommu_domain *domain,
466 extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
468 extern int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova,
470 extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
472 extern size_t iommu_unmap_fast(struct iommu_domain *domain,
475 extern size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
477 extern size_t iommu_map_sg_atomic(struct iommu_domain *domain,
480 extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova);
481 extern void iommu_set_fault_handler(struct iommu_domain *domain,
497 extern int iommu_attach_group(struct iommu_domain *domain,
499 extern void iommu_detach_group(struct iommu_domain *domain,
533 extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr,
535 extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
539 extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
542 extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr);
544 extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
547 static inline void iommu_flush_iotlb_all(struct iommu_domain *domain)  in iommu_flush_iotlb_all()  argument
549 	if (domain->ops->flush_iotlb_all)  in iommu_flush_iotlb_all()
550 		domain->ops->flush_iotlb_all(domain);  in iommu_flush_iotlb_all()
553 static inline void iommu_iotlb_sync(struct iommu_domain *domain,  in iommu_iotlb_sync()  argument
556 	if (domain->ops->iotlb_sync)  in iommu_iotlb_sync()
557 		domain->ops->iotlb_sync(domain, iotlb_gather);  in iommu_iotlb_sync()
562 static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain,  in iommu_iotlb_gather_add_page()  argument
576 			iommu_iotlb_sync(domain, gather);  in iommu_iotlb_gather_add_page()
662 int iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev);
663 void iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev);
664 int iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev);
701 static inline void iommu_domain_free(struct iommu_domain *domain)  in iommu_domain_free()  argument
705 static inline int iommu_attach_device(struct iommu_domain *domain,  in iommu_attach_device()  argument
711 static inline void iommu_detach_device(struct iommu_domain *domain,  in iommu_detach_device()  argument
721 static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,  in iommu_map()  argument
727 static inline int iommu_map_atomic(struct iommu_domain *domain,  in iommu_map_atomic()  argument
734 static inline size_t iommu_unmap(struct iommu_domain *domain,  in iommu_unmap()  argument
740 static inline size_t iommu_unmap_fast(struct iommu_domain *domain,  in iommu_unmap_fast()  argument
747 static inline size_t iommu_map_sg(struct iommu_domain *domain,  in iommu_map_sg()  argument
754 static inline size_t iommu_map_sg_atomic(struct iommu_domain *domain,  in iommu_map_sg_atomic()  argument
761 static inline void iommu_flush_iotlb_all(struct iommu_domain *domain)  in iommu_flush_iotlb_all()  argument
765 static inline void iommu_iotlb_sync(struct iommu_domain *domain,  in iommu_iotlb_sync()  argument
770 static inline int iommu_domain_window_enable(struct iommu_domain *domain,  in iommu_domain_window_enable()  argument
777 static inline void iommu_domain_window_disable(struct iommu_domain *domain,  in iommu_domain_window_disable()  argument
782 static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)  in iommu_iova_to_phys()  argument
787 static inline void iommu_set_fault_handler(struct iommu_domain *domain,  in iommu_set_fault_handler()  argument
821 static inline int iommu_attach_group(struct iommu_domain *domain,  in iommu_attach_group()  argument
827 static inline void iommu_detach_group(struct iommu_domain *domain,  in iommu_detach_group()  argument
922 static inline int iommu_domain_get_attr(struct iommu_domain *domain,  in iommu_domain_get_attr()  argument
928 static inline int iommu_domain_set_attr(struct iommu_domain *domain,  in iommu_domain_set_attr()  argument
958 static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain,  in iommu_iotlb_gather_add_page()  argument
1037 iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev)  in iommu_aux_attach_device()  argument
1043 iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev)  in iommu_aux_detach_device()  argument
1048 iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev)  in iommu_aux_get_pasid()  argument
1069 iommu_uapi_cache_invalidate(struct iommu_domain *domain,  in iommu_uapi_cache_invalidate()  argument
1076 static inline int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain,  in iommu_uapi_sva_bind_gpasid()  argument
1082 static inline int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain,  in iommu_uapi_sva_unbind_gpasid()  argument
1088 static inline int iommu_sva_unbind_gpasid(struct iommu_domain *domain,  in iommu_sva_unbind_gpasid()  argument
1102  * iommu_map_sgtable - Map the given buffer to the IOMMU domain
1103  * @domain:	The IOMMU domain to perform the mapping
1109  * stored in the given sg_table object in the provided IOMMU domain.
1111 static inline size_t iommu_map_sgtable(struct iommu_domain *domain,  in iommu_map_sgtable()  argument
1114 	return iommu_map_sg(domain, iova, sgt->sgl, sgt->orig_nents, prot);  in iommu_map_sgtable()