include/linux/iommu.h

58 /* Domain feature flags */
60 #define __IOMMU_DOMAIN_DMA_API	(1U << 1)  /* Domain for use in DMA-API
62 #define __IOMMU_DOMAIN_PT	(1U << 2)  /* Domain is identity mapped   */
65  * This are the possible domain-types
160 	IOMMU_DEV_FEAT_AUX,	/* Aux-domain feature */
188  * @domain_alloc: allocate iommu domain
189  * @domain_free: free iommu domain
190  * @attach_dev: attach device to an iommu domain
191  * @detach_dev: detach device from an iommu domain
192  * @map: map a physically contiguous memory region to an iommu domain
193  * @unmap: unmap a physically contiguous memory region from an iommu domain
194  * @flush_iotlb_all: Synchronously flush all hardware TLBs for this domain
202  *                  group and attached to the groups domain
204  * @domain_get_attr: Query domain attributes
205  * @domain_set_attr: Change domain attributes
209  * @domain_window_enable: Configure and enable a particular window for a domain
210  * @domain_window_disable: Disable a particular window for a domain
212  * @is_attach_deferred: Check if domain attach should be deferred from iommu
217  * @aux_attach/detach_dev: aux-domain specific attach/detach entries.
218  * @aux_get_pasid: get the pasid given an aux-domain
226  * @def_domain_type: device default domain type, return value:
227  *		- IOMMU_DOMAIN_IDENTITY: must use an identity domain
228  *		- IOMMU_DOMAIN_DMA: must use a dma domain
236 	/* Domain allocation and freeing by the iommu driver */
240 	int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
241 	void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
242 	int (*map)(struct iommu_domain *domain, unsigned long iova,
244 	size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
246 	void (*flush_iotlb_all)(struct iommu_domain *domain);
247 	void (*iotlb_sync_map)(struct iommu_domain *domain);
248 	void (*iotlb_sync)(struct iommu_domain *domain,
250 	phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
255 	int (*domain_get_attr)(struct iommu_domain *domain,
257 	int (*domain_set_attr)(struct iommu_domain *domain,
264 				  struct iommu_domain *domain,
268 	int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
270 	void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr);
273 	bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev);
281 	/* Aux-domain specific attach/detach entries */
282 	int (*aux_attach_dev)(struct iommu_domain *domain, struct device *dev);
283 	void (*aux_detach_dev)(struct iommu_domain *domain, struct device *dev);
284 	int (*aux_get_pasid)(struct iommu_domain *domain, struct device *dev);
294 	int (*cache_invalidate)(struct iommu_domain *domain, struct device *dev,
296 	int (*sva_bind_gpasid)(struct iommu_domain *domain,
422 extern void iommu_domain_free(struct iommu_domain *domain);
423 extern int iommu_attach_device(struct iommu_domain *domain,
425 extern void iommu_detach_device(struct iommu_domain *domain,
427 extern int iommu_uapi_cache_invalidate(struct iommu_domain *domain,
431 extern int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain,
433 extern int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain,
435 extern int iommu_sva_unbind_gpasid(struct iommu_domain *domain,
439 extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
441 extern int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova,
443 extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
445 extern size_t iommu_unmap_fast(struct iommu_domain *domain,
448 extern size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
450 extern size_t iommu_map_sg_atomic(struct iommu_domain *domain,
453 extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova);
454 extern void iommu_set_fault_handler(struct iommu_domain *domain,
470 extern int iommu_attach_group(struct iommu_domain *domain,
472 extern void iommu_detach_group(struct iommu_domain *domain,
506 extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr,
508 extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
512 extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
515 extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr);
517 extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
520 static inline void iommu_flush_iotlb_all(struct iommu_domain *domain)  in iommu_flush_iotlb_all()  argument
522 	if (domain->ops->flush_iotlb_all)  in iommu_flush_iotlb_all()
523 		domain->ops->flush_iotlb_all(domain);  in iommu_flush_iotlb_all()
526 static inline void iommu_iotlb_sync(struct iommu_domain *domain,  in iommu_iotlb_sync()  argument
529 	if (domain->ops->iotlb_sync)  in iommu_iotlb_sync()
530 		domain->ops->iotlb_sync(domain, iotlb_gather);  in iommu_iotlb_sync()
535 static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain,  in iommu_iotlb_gather_add_page()  argument
549 			iommu_iotlb_sync(domain, gather);  in iommu_iotlb_gather_add_page()
632 int iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev);
633 void iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev);
634 int iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev);
671 static inline void iommu_domain_free(struct iommu_domain *domain)  in iommu_domain_free()  argument
675 static inline int iommu_attach_device(struct iommu_domain *domain,  in iommu_attach_device()  argument
681 static inline void iommu_detach_device(struct iommu_domain *domain,  in iommu_detach_device()  argument
691 static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,  in iommu_map()  argument
697 static inline int iommu_map_atomic(struct iommu_domain *domain,  in iommu_map_atomic()  argument
704 static inline size_t iommu_unmap(struct iommu_domain *domain,  in iommu_unmap()  argument
710 static inline size_t iommu_unmap_fast(struct iommu_domain *domain,  in iommu_unmap_fast()  argument
717 static inline size_t iommu_map_sg(struct iommu_domain *domain,  in iommu_map_sg()  argument
724 static inline size_t iommu_map_sg_atomic(struct iommu_domain *domain,  in iommu_map_sg_atomic()  argument
731 static inline void iommu_flush_iotlb_all(struct iommu_domain *domain)  in iommu_flush_iotlb_all()  argument
735 static inline void iommu_iotlb_sync(struct iommu_domain *domain,  in iommu_iotlb_sync()  argument
740 static inline int iommu_domain_window_enable(struct iommu_domain *domain,  in iommu_domain_window_enable()  argument
747 static inline void iommu_domain_window_disable(struct iommu_domain *domain,  in iommu_domain_window_disable()  argument
752 static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)  in iommu_iova_to_phys()  argument
757 static inline void iommu_set_fault_handler(struct iommu_domain *domain,  in iommu_set_fault_handler()  argument
791 static inline int iommu_attach_group(struct iommu_domain *domain,  in iommu_attach_group()  argument
797 static inline void iommu_detach_group(struct iommu_domain *domain,  in iommu_detach_group()  argument
892 static inline int iommu_domain_get_attr(struct iommu_domain *domain,  in iommu_domain_get_attr()  argument
898 static inline int iommu_domain_set_attr(struct iommu_domain *domain,  in iommu_domain_set_attr()  argument
928 static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain,  in iommu_iotlb_gather_add_page()  argument
1007 iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev)  in iommu_aux_attach_device()  argument
1013 iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev)  in iommu_aux_detach_device()  argument
1018 iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev)  in iommu_aux_get_pasid()  argument
1039 iommu_uapi_cache_invalidate(struct iommu_domain *domain,  in iommu_uapi_cache_invalidate()  argument
1046 static inline int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain,  in iommu_uapi_sva_bind_gpasid()  argument
1052 static inline int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain,  in iommu_uapi_sva_unbind_gpasid()  argument
1058 static inline int iommu_sva_unbind_gpasid(struct iommu_domain *domain,  in iommu_sva_unbind_gpasid()  argument
1072  * iommu_map_sgtable - Map the given buffer to the IOMMU domain
1073  * @domain:	The IOMMU domain to perform the mapping
1079  * stored in the given sg_table object in the provided IOMMU domain.
1081 static inline size_t iommu_map_sgtable(struct iommu_domain *domain,  in iommu_map_sgtable()  argument
1084 	return iommu_map_sg(domain, iova, sgt->sgl, sgt->orig_nents, prot);  in iommu_map_sgtable()