324 static int dlpar_offline_cpu(struct device_node *dn)  in dlpar_offline_cpu()  argument
332 	intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s", &len);  in dlpar_offline_cpu()
356 				pr_warn("Unable to remove last online CPU %pOFn\n", dn);  in dlpar_offline_cpu()
380 static int dlpar_online_cpu(struct device_node *dn)  in dlpar_online_cpu()  argument
388 	intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s", &len);  in dlpar_online_cpu()
404 				dlpar_offline_cpu(dn);  in dlpar_online_cpu()
519 static int pseries_cpuhp_attach_nodes(struct device_node *dn)  in pseries_cpuhp_attach_nodes()  argument
528 	for (of_changeset_init(&cs); dn != NULL; dn = dn->sibling) {  in pseries_cpuhp_attach_nodes()
529 		ret = of_changeset_attach_node(&cs, dn);  in pseries_cpuhp_attach_nodes()
542 	struct device_node *dn, *parent;  in dlpar_cpu_add()  local
573 	dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);  in dlpar_cpu_add()
574 	if (!dn) {  in dlpar_cpu_add()
582 	rc = pseries_cpuhp_attach_nodes(dn);  in dlpar_cpu_add()
590 			dn, rc, drc_index);  in dlpar_cpu_add()
594 			dlpar_free_cc_nodes(dn);  in dlpar_cpu_add()
599 	update_numa_distance(dn);  in dlpar_cpu_add()
601 	rc = dlpar_online_cpu(dn);  in dlpar_cpu_add()
605 			dn, rc, drc_index);  in dlpar_cpu_add()
607 		rc = dlpar_detach_node(dn);  in dlpar_cpu_add()
614 	pr_debug("Successfully added CPU %pOFn, drc index: %x\n", dn,  in dlpar_cpu_add()
622 	struct device_node *dn;  in pseries_cpuhp_cache_use_count()  local
626 	for_each_of_cpu_node(dn) {  in pseries_cpuhp_cache_use_count()
627 		if (of_find_next_cache_node(dn) == cachedn)  in pseries_cpuhp_cache_use_count()
631 	for_each_node_by_type(dn, "cache") {  in pseries_cpuhp_cache_use_count()
632 		if (of_find_next_cache_node(dn) == cachedn)  in pseries_cpuhp_cache_use_count()
641 	struct device_node *dn;  in pseries_cpuhp_detach_nodes()  local
650 	dn = cpudn;  in pseries_cpuhp_detach_nodes()
651 	while ((dn = of_find_next_cache_node(dn))) {  in pseries_cpuhp_detach_nodes()
652 		if (pseries_cpuhp_cache_use_count(dn) > 1)  in pseries_cpuhp_detach_nodes()
655 		ret = of_changeset_detach_node(&cs, dn);  in pseries_cpuhp_detach_nodes()
666 static ssize_t dlpar_cpu_remove(struct device_node *dn, u32 drc_index)  in dlpar_cpu_remove()  argument
671 		 dn, drc_index);  in dlpar_cpu_remove()
673 	rc = dlpar_offline_cpu(dn);  in dlpar_cpu_remove()
675 		pr_warn("Failed to offline CPU %pOFn, rc: %d\n", dn, rc);  in dlpar_cpu_remove()
682 			drc_index, dn, rc);  in dlpar_cpu_remove()
683 		dlpar_online_cpu(dn);  in dlpar_cpu_remove()
687 	rc = pseries_cpuhp_detach_nodes(dn);  in dlpar_cpu_remove()
691 		pr_warn("Failed to detach CPU %pOFn, rc: %d", dn, rc);  in dlpar_cpu_remove()
695 			dlpar_online_cpu(dn);  in dlpar_cpu_remove()
706 	struct device_node *dn;  in cpu_drc_index_to_dn()  local
710 	for_each_node_by_type(dn, "cpu") {  in cpu_drc_index_to_dn()
711 		rc = of_property_read_u32(dn, "ibm,my-drc-index", &my_index);  in cpu_drc_index_to_dn()
719 	return dn;  in cpu_drc_index_to_dn()
724 	struct device_node *dn;  in dlpar_cpu_remove_by_index()  local
727 	dn = cpu_drc_index_to_dn(drc_index);  in dlpar_cpu_remove_by_index()
728 	if (!dn) {  in dlpar_cpu_remove_by_index()
734 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_remove_by_index()
735 	of_node_put(dn);  in dlpar_cpu_remove_by_index()
797 	struct device_node *dn;  in dlpar_cpu_release()  local
801 	dn = of_find_node_by_path(buf);  in dlpar_cpu_release()
802 	if (!dn)  in dlpar_cpu_release()
805 	rc = of_property_read_u32(dn, "ibm,my-drc-index", &drc_index);  in dlpar_cpu_release()
807 		of_node_put(dn);  in dlpar_cpu_release()
811 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_release()
812 	of_node_put(dn);  in dlpar_cpu_release()
827 		err = pseries_add_processor(rd->dn);  in pseries_smp_notifier()
830 		pseries_remove_processor(rd->dn);  in pseries_smp_notifier()