427 static bool dlpar_cpu_exists(struct device_node *parent, u32 drc_index)  in dlpar_cpu_exists()  argument
443 		if (my_drc_index == drc_index) {  in dlpar_cpu_exists()
453 static bool drc_info_valid_index(struct device_node *parent, u32 drc_index)  in drc_info_valid_index()  argument
480 		if (drc_index > drc.last_drc_index)  in drc_info_valid_index()
485 			if (drc_index == index)  in drc_info_valid_index()
495 static bool valid_cpu_drc_index(struct device_node *parent, u32 drc_index)  in valid_cpu_drc_index()  argument
501 		return drc_info_valid_index(parent, drc_index);  in valid_cpu_drc_index()
517 		if (drc == drc_index)  in valid_cpu_drc_index()
524 static ssize_t dlpar_cpu_add(u32 drc_index)  in dlpar_cpu_add()  argument
529 	pr_debug("Attempting to add CPU, drc index: %x\n", drc_index);  in dlpar_cpu_add()
537 	if (dlpar_cpu_exists(parent, drc_index)) {  in dlpar_cpu_add()
539 		pr_warn("CPU with drc index %x already exists\n", drc_index);  in dlpar_cpu_add()
543 	if (!valid_cpu_drc_index(parent, drc_index)) {  in dlpar_cpu_add()
545 		pr_warn("Cannot find CPU (drc index %x) to add.\n", drc_index);  in dlpar_cpu_add()
549 	rc = dlpar_acquire_drc(drc_index);  in dlpar_cpu_add()
552 			rc, drc_index);  in dlpar_cpu_add()
557 	dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);  in dlpar_cpu_add()
560 			drc_index);  in dlpar_cpu_add()
561 		dlpar_release_drc(drc_index);  in dlpar_cpu_add()
574 			dn, rc, drc_index);  in dlpar_cpu_add()
576 		rc = dlpar_release_drc(drc_index);  in dlpar_cpu_add()
589 			dn, rc, drc_index);  in dlpar_cpu_add()
593 			dlpar_release_drc(drc_index);  in dlpar_cpu_add()
599 		 drc_index);  in dlpar_cpu_add()
603 static ssize_t dlpar_cpu_remove(struct device_node *dn, u32 drc_index)  in dlpar_cpu_remove()  argument
608 		 dn, drc_index);  in dlpar_cpu_remove()
616 	rc = dlpar_release_drc(drc_index);  in dlpar_cpu_remove()
619 			drc_index, dn, rc);  in dlpar_cpu_remove()
630 		rc = dlpar_acquire_drc(drc_index);  in dlpar_cpu_remove()
637 	pr_debug("Successfully removed CPU, drc index: %x\n", drc_index);  in dlpar_cpu_remove()
641 static struct device_node *cpu_drc_index_to_dn(u32 drc_index)  in cpu_drc_index_to_dn()  argument
652 		if (my_index == drc_index)  in cpu_drc_index_to_dn()
659 static int dlpar_cpu_remove_by_index(u32 drc_index)  in dlpar_cpu_remove_by_index()  argument
664 	dn = cpu_drc_index_to_dn(drc_index);  in dlpar_cpu_remove_by_index()
667 			drc_index);  in dlpar_cpu_remove_by_index()
671 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_remove_by_index()
764 	u32 count, drc_index;  in find_drc_info_cpus_to_add()  local
780 		drc_index = drc.drc_index_start;  in find_drc_info_cpus_to_add()
782 			if (dlpar_cpu_exists(cpus, drc_index))  in find_drc_info_cpus_to_add()
785 			cpu_drcs[cpus_found++] = drc_index;  in find_drc_info_cpus_to_add()
790 			drc_index += drc.sequential_inc;  in find_drc_info_cpus_to_add()
802 	u32 drc_index;  in find_drc_index_cpus_to_add()  local
812 						index++, &drc_index);  in find_drc_index_cpus_to_add()
817 		if (dlpar_cpu_exists(cpus, drc_index))  in find_drc_index_cpus_to_add()
820 		cpu_drcs[cpus_found++] = drc_index;  in find_drc_index_cpus_to_add()
888 	u32 count, drc_index;  in dlpar_cpu()  local
892 	drc_index = hp_elog->_drc_u.drc_index;  in dlpar_cpu()
901 			rc = dlpar_cpu_remove_by_index(drc_index);  in dlpar_cpu()
908 				dlpar_unisolate_drc(drc_index);  in dlpar_cpu()
917 			rc = dlpar_cpu_add(drc_index);  in dlpar_cpu()
935 	u32 drc_index;  in dlpar_cpu_probe()  local
938 	rc = kstrtou32(buf, 0, &drc_index);  in dlpar_cpu_probe()
942 	rc = dlpar_cpu_add(drc_index);  in dlpar_cpu_probe()
950 	u32 drc_index;  in dlpar_cpu_release()  local
957 	rc = of_property_read_u32(dn, "ibm,my-drc-index", &drc_index);  in dlpar_cpu_release()
963 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_release()