431 static bool dlpar_cpu_exists(struct device_node *parent, u32 drc_index)  in dlpar_cpu_exists()  argument
447 		if (my_drc_index == drc_index) {  in dlpar_cpu_exists()
457 static bool drc_info_valid_index(struct device_node *parent, u32 drc_index)  in drc_info_valid_index()  argument
484 		if (drc_index > drc.last_drc_index)  in drc_info_valid_index()
489 			if (drc_index == index)  in drc_info_valid_index()
499 static bool valid_cpu_drc_index(struct device_node *parent, u32 drc_index)  in valid_cpu_drc_index()  argument
505 		return drc_info_valid_index(parent, drc_index);  in valid_cpu_drc_index()
521 		if (drc == drc_index)  in valid_cpu_drc_index()
549 static ssize_t dlpar_cpu_add(u32 drc_index)  in dlpar_cpu_add()  argument
554 	pr_debug("Attempting to add CPU, drc index: %x\n", drc_index);  in dlpar_cpu_add()
562 	if (dlpar_cpu_exists(parent, drc_index)) {  in dlpar_cpu_add()
564 		pr_warn("CPU with drc index %x already exists\n", drc_index);  in dlpar_cpu_add()
568 	if (!valid_cpu_drc_index(parent, drc_index)) {  in dlpar_cpu_add()
570 		pr_warn("Cannot find CPU (drc index %x) to add.\n", drc_index);  in dlpar_cpu_add()
574 	rc = dlpar_acquire_drc(drc_index);  in dlpar_cpu_add()
577 			rc, drc_index);  in dlpar_cpu_add()
582 	dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);  in dlpar_cpu_add()
585 			drc_index);  in dlpar_cpu_add()
586 		dlpar_release_drc(drc_index);  in dlpar_cpu_add()
599 			dn, rc, drc_index);  in dlpar_cpu_add()
601 		rc = dlpar_release_drc(drc_index);  in dlpar_cpu_add()
614 			dn, rc, drc_index);  in dlpar_cpu_add()
618 			dlpar_release_drc(drc_index);  in dlpar_cpu_add()
624 		 drc_index);  in dlpar_cpu_add()
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()
695 	rc = dlpar_release_drc(drc_index);  in dlpar_cpu_remove()
698 			drc_index, dn, rc);  in dlpar_cpu_remove()
709 		rc = dlpar_acquire_drc(drc_index);  in dlpar_cpu_remove()
716 	pr_debug("Successfully removed CPU, drc index: %x\n", drc_index);  in dlpar_cpu_remove()
720 static struct device_node *cpu_drc_index_to_dn(u32 drc_index)  in cpu_drc_index_to_dn()  argument
731 		if (my_index == drc_index)  in cpu_drc_index_to_dn()
738 static int dlpar_cpu_remove_by_index(u32 drc_index)  in dlpar_cpu_remove_by_index()  argument
743 	dn = cpu_drc_index_to_dn(drc_index);  in dlpar_cpu_remove_by_index()
746 			drc_index);  in dlpar_cpu_remove_by_index()
750 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_remove_by_index()
757 	u32 drc_index;  in dlpar_cpu()  local
760 	drc_index = hp_elog->_drc_u.drc_index;  in dlpar_cpu()
767 			rc = dlpar_cpu_remove_by_index(drc_index);  in dlpar_cpu()
774 				dlpar_unisolate_drc(drc_index);  in dlpar_cpu()
781 			rc = dlpar_cpu_add(drc_index);  in dlpar_cpu()
799 	u32 drc_index;  in dlpar_cpu_probe()  local
802 	rc = kstrtou32(buf, 0, &drc_index);  in dlpar_cpu_probe()
806 	rc = dlpar_cpu_add(drc_index);  in dlpar_cpu_probe()
814 	u32 drc_index;  in dlpar_cpu_release()  local
821 	rc = of_property_read_u32(dn, "ibm,my-drc-index", &drc_index);  in dlpar_cpu_release()
827 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_release()