156  * ITS ID and base address to the list from where we can get it back later on.
157  * @trans_id: ITS ID.
158  * @base: ITS base address.
184  * iort_deregister_domain_token() - Deregister domain token based on ITS ID
185  * @trans_id: ITS ID.
205  * iort_find_domain_token() - Find domain token based on given ITS ID
206  * @trans_id: ITS ID.
487 		 * Get the special ID mapping index (if any) and skip its  in iort_node_map_id()
534 	 * optional step 2: map the initial dev id if its parent is not  in iort_node_map_platform_id()
536 	 * as NC (named component) -> SMMU -> ITS. If the type is matched,  in iort_node_map_platform_id()
537 	 * return the initial dev id and its parent pointer directly.  in iort_node_map_platform_id()
556 		 * device (such as SMMU, PMCG),its iort node already cached  in iort_find_dev_node()
648  * iort_dev_find_its_id() - Find the ITS identifier for a device
651  * @idx: Index of the ITS identifier list.
652  * @its_id: ITS identifier.
659 	struct acpi_iort_its_group *its;  in iort_dev_find_its_id()  local
670 	/* Move to ITS specific data */  in iort_dev_find_its_id()
671 	its = (struct acpi_iort_its_group *)node->node_data;  in iort_dev_find_its_id()
672 	if (idx >= its->its_count) {  in iort_dev_find_its_id()
673 		dev_err(dev, "requested ITS ID index [%d] overruns ITS entries [%d]\n",  in iort_dev_find_its_id()
674 			idx, its->its_count);  in iort_dev_find_its_id()
678 	*its_id = its->identifiers[idx];  in iort_dev_find_its_id()
709 	struct acpi_iort_its_group *its;  in iort_set_device_domain()  local
737 	/* Move to ITS specific data */  in iort_set_device_domain()
738 	its = (struct acpi_iort_its_group *)msi_parent->node_data;  in iort_set_device_domain()
740 	iort_fwnode = iort_find_domain_token(its->identifiers[0]);  in iort_set_device_domain()
760 	struct acpi_iort_its_group *its;  in iort_get_platform_device_domain()  local
763 	/* find its associated iort node */  in iort_get_platform_device_domain()
769 	/* then find its msi parent node */  in iort_get_platform_device_domain()
780 	/* Move to ITS specific data */  in iort_get_platform_device_domain()
781 	its = (struct acpi_iort_its_group *)msi_parent->node_data;  in iort_get_platform_device_domain()
783 	iort_fwnode = iort_find_domain_token(its->identifiers[0]);  in iort_get_platform_device_domain()
1105  * The ITS interrupt translation spaces (ITS_base + SZ_64K, SZ_64K)
1112 	struct acpi_iort_its_group *its;  in iort_iommu_msi_get_resv_regions()  local
1121 	 * Current logic to reserve ITS regions relies on HW topologies  in iort_iommu_msi_get_resv_regions()
1122 	 * where a given PCI or named component maps its IDs to only one  in iort_iommu_msi_get_resv_regions()
1123 	 * ITS group; if a PCI or named component can map its IDs to  in iort_iommu_msi_get_resv_regions()
1124 	 * different ITS groups through IORT mappings this function has  in iort_iommu_msi_get_resv_regions()
1125 	 * to be reworked to ensure we reserve regions for all ITS groups  in iort_iommu_msi_get_resv_regions()
1140 	/* Move to ITS specific data */  in iort_iommu_msi_get_resv_regions()
1141 	its = (struct acpi_iort_its_group *)its_node->node_data;  in iort_iommu_msi_get_resv_regions()
1143 	for (i = 0; i < its->its_count; i++) {  in iort_iommu_msi_get_resv_regions()
1146 		if (!iort_find_its_base(its->identifiers[i], &base)) {  in iort_iommu_msi_get_resv_regions()