334 static bool dlpar_cpu_exists(struct device_node *parent, u32 drc_index)  in dlpar_cpu_exists()  argument
350 		if (my_drc_index == drc_index) {  in dlpar_cpu_exists()
360 static bool drc_info_valid_index(struct device_node *parent, u32 drc_index)  in drc_info_valid_index()  argument
387 		if (drc_index > drc.last_drc_index)  in drc_info_valid_index()
392 			if (drc_index == index)  in drc_info_valid_index()
402 static bool valid_cpu_drc_index(struct device_node *parent, u32 drc_index)  in valid_cpu_drc_index()  argument
408 		return drc_info_valid_index(parent, drc_index);  in valid_cpu_drc_index()
424 		if (drc == drc_index)  in valid_cpu_drc_index()
431 static ssize_t dlpar_cpu_add(u32 drc_index)  in dlpar_cpu_add()  argument
436 	pr_debug("Attempting to add CPU, drc index: %x\n", drc_index);  in dlpar_cpu_add()
444 	if (dlpar_cpu_exists(parent, drc_index)) {  in dlpar_cpu_add()
446 		pr_warn("CPU with drc index %x already exists\n", drc_index);  in dlpar_cpu_add()
450 	if (!valid_cpu_drc_index(parent, drc_index)) {  in dlpar_cpu_add()
452 		pr_warn("Cannot find CPU (drc index %x) to add.\n", drc_index);  in dlpar_cpu_add()
456 	rc = dlpar_acquire_drc(drc_index);  in dlpar_cpu_add()
459 			rc, drc_index);  in dlpar_cpu_add()
464 	dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);  in dlpar_cpu_add()
467 			drc_index);  in dlpar_cpu_add()
468 		dlpar_release_drc(drc_index);  in dlpar_cpu_add()
481 			dn, rc, drc_index);  in dlpar_cpu_add()
483 		rc = dlpar_release_drc(drc_index);  in dlpar_cpu_add()
494 			dn, rc, drc_index);  in dlpar_cpu_add()
498 			dlpar_release_drc(drc_index);  in dlpar_cpu_add()
504 		 drc_index);  in dlpar_cpu_add()
508 static ssize_t dlpar_cpu_remove(struct device_node *dn, u32 drc_index)  in dlpar_cpu_remove()  argument
513 		 dn, drc_index);  in dlpar_cpu_remove()
521 	rc = dlpar_release_drc(drc_index);  in dlpar_cpu_remove()
524 			drc_index, dn, rc);  in dlpar_cpu_remove()
535 		rc = dlpar_acquire_drc(drc_index);  in dlpar_cpu_remove()
542 	pr_debug("Successfully removed CPU, drc index: %x\n", drc_index);  in dlpar_cpu_remove()
546 static struct device_node *cpu_drc_index_to_dn(u32 drc_index)  in cpu_drc_index_to_dn()  argument
557 		if (my_index == drc_index)  in cpu_drc_index_to_dn()
564 static int dlpar_cpu_remove_by_index(u32 drc_index)  in dlpar_cpu_remove_by_index()  argument
569 	dn = cpu_drc_index_to_dn(drc_index);  in dlpar_cpu_remove_by_index()
572 			drc_index);  in dlpar_cpu_remove_by_index()
576 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_remove_by_index()
669 	u32 count, drc_index;  in find_drc_info_cpus_to_add()  local
685 		drc_index = drc.drc_index_start;  in find_drc_info_cpus_to_add()
687 			if (dlpar_cpu_exists(cpus, drc_index))  in find_drc_info_cpus_to_add()
690 			cpu_drcs[cpus_found++] = drc_index;  in find_drc_info_cpus_to_add()
695 			drc_index += drc.sequential_inc;  in find_drc_info_cpus_to_add()
707 	u32 drc_index;  in find_drc_index_cpus_to_add()  local
717 						index++, &drc_index);  in find_drc_index_cpus_to_add()
722 		if (dlpar_cpu_exists(cpus, drc_index))  in find_drc_index_cpus_to_add()
725 		cpu_drcs[cpus_found++] = drc_index;  in find_drc_index_cpus_to_add()
792 	u32 count, drc_index;  in dlpar_cpu()  local
796 	drc_index = hp_elog->_drc_u.drc_index;  in dlpar_cpu()
805 			rc = dlpar_cpu_remove_by_index(drc_index);  in dlpar_cpu()
813 			rc = dlpar_cpu_add(drc_index);  in dlpar_cpu()
831 	u32 drc_index;  in dlpar_cpu_probe()  local
834 	rc = kstrtou32(buf, 0, &drc_index);  in dlpar_cpu_probe()
838 	rc = dlpar_cpu_add(drc_index);  in dlpar_cpu_probe()
846 	u32 drc_index;  in dlpar_cpu_release()  local
853 	rc = of_property_read_u32(dn, "ibm,my-drc-index", &drc_index);  in dlpar_cpu_release()
859 	rc = dlpar_cpu_remove(dn, drc_index);  in dlpar_cpu_release()