325 static int dlpar_offline_cpu(struct device_node *dn)  in dlpar_offline_cpu()  argument
333 	intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s", &len);  in dlpar_offline_cpu()
357 				pr_warn("Unable to remove last online CPU %pOFn\n", dn);  in dlpar_offline_cpu()
381 static int dlpar_online_cpu(struct device_node *dn)  in dlpar_online_cpu()  argument
389 	intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s", &len);  in dlpar_online_cpu()
413 				dlpar_offline_cpu(dn);  in dlpar_online_cpu()
528 static int pseries_cpuhp_attach_nodes(struct device_node *dn)  in pseries_cpuhp_attach_nodes()  argument
537 	for (of_changeset_init(&cs); dn != NULL; dn = dn->sibling) {  in pseries_cpuhp_attach_nodes()
538 		ret = of_changeset_attach_node(&cs, dn);  in pseries_cpuhp_attach_nodes()
551 	struct device_node *dn, *parent;  in dlpar_cpu_add()  local
582 	dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);  in dlpar_cpu_add()
583 	if (!dn) {  in dlpar_cpu_add()
591 	rc = pseries_cpuhp_attach_nodes(dn);  in dlpar_cpu_add()
599 			dn, rc, drc_index);  in dlpar_cpu_add()
603 			dlpar_free_cc_nodes(dn);  in dlpar_cpu_add()
608 	update_numa_distance(dn);  in dlpar_cpu_add()
610 	rc = dlpar_online_cpu(dn);  in dlpar_cpu_add()
614 			dn, rc, drc_index);  in dlpar_cpu_add()
616 		rc = dlpar_detach_node(dn);  in dlpar_cpu_add()
623 	pr_debug("Successfully added CPU %pOFn, drc index: %x\n", dn,  in dlpar_cpu_add()
631 	struct device_node *dn, *tn;  in pseries_cpuhp_cache_use_count()  local
635 	for_each_of_cpu_node(dn) {  in pseries_cpuhp_cache_use_count()
636 		tn = of_find_next_cache_node(dn);  in pseries_cpuhp_cache_use_count()
642 	for_each_node_by_type(dn, "cache") {  in pseries_cpuhp_cache_use_count()
643 		tn = of_find_next_cache_node(dn);  in pseries_cpuhp_cache_use_count()
654 	struct device_node *dn;  in pseries_cpuhp_detach_nodes()  local
663 	dn = cpudn;  in pseries_cpuhp_detach_nodes()
664 	while ((dn = of_find_next_cache_node(dn))) {  in pseries_cpuhp_detach_nodes()
665 		if (pseries_cpuhp_cache_use_count(dn) > 1) {  in pseries_cpuhp_detach_nodes()
666 			of_node_put(dn);  in pseries_cpuhp_detach_nodes()
670 		ret = of_changeset_detach_node(&cs, dn);  in pseries_cpuhp_detach_nodes()
671 		of_node_put(dn);  in pseries_cpuhp_detach_nodes()
682 static ssize_t dlpar_cpu_remove(struct device_node *dn, u32 drc_index)  in dlpar_cpu_remove()  argument
687 		 dn, drc_index);  in dlpar_cpu_remove()
689 	rc = dlpar_offline_cpu(dn);  in dlpar_cpu_remove()
691 		pr_warn("Failed to offline CPU %pOFn, rc: %d\n", dn, rc);  in dlpar_cpu_remove()
698 			drc_index, dn, rc);  in dlpar_cpu_remove()
699 		dlpar_online_cpu(dn);  in dlpar_cpu_remove()
703 	rc = pseries_cpuhp_detach_nodes(dn);  in dlpar_cpu_remove()
707 		pr_warn("Failed to detach CPU %pOFn, rc: %d", dn, rc);  in dlpar_cpu_remove()
711 			dlpar_online_cpu(dn);  in dlpar_cpu_remove()
722 	struct device_node *dn;  in cpu_drc_index_to_dn()  local
726 	for_each_node_by_type(dn, "cpu") {  in cpu_drc_index_to_dn()
727 		rc = of_property_read_u32(dn, "ibm,my-drc-index", &my_index);  in cpu_drc_index_to_dn()
735 	return dn;  in cpu_drc_index_to_dn()
740 	struct device_node *dn;  in dlpar_cpu_remove_by_index()  local
743 	dn = cpu_drc_index_to_dn(drc_index);  in dlpar_cpu_remove_by_index()
744 	if (!dn) {  in dlpar_cpu_remove_by_index()
750 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_remove_by_index()
751 	of_node_put(dn);  in dlpar_cpu_remove_by_index()
813 	struct device_node *dn;  in dlpar_cpu_release()  local
817 	dn = of_find_node_by_path(buf);  in dlpar_cpu_release()
818 	if (!dn)  in dlpar_cpu_release()
821 	rc = of_property_read_u32(dn, "ibm,my-drc-index", &drc_index);  in dlpar_cpu_release()
823 		of_node_put(dn);  in dlpar_cpu_release()
827 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_release()
828 	of_node_put(dn);  in dlpar_cpu_release()
843 		err = pseries_add_processor(rd->dn);  in pseries_smp_notifier()
846 		pseries_remove_processor(rd->dn);  in pseries_smp_notifier()