277 void smp_muxed_ipi_set_message(int cpu, int msg)  in smp_muxed_ipi_set_message()  argument
279 	struct cpu_messages *info = &per_cpu(ipi_message, cpu);  in smp_muxed_ipi_set_message()
289 void smp_muxed_ipi_message_pass(int cpu, int msg)  in smp_muxed_ipi_message_pass()  argument
291 	smp_muxed_ipi_set_message(cpu, msg);  in smp_muxed_ipi_message_pass()
297 	smp_ops->cause_ipi(cpu);  in smp_muxed_ipi_message_pass()
351 static inline void do_message_pass(int cpu, int msg)  in do_message_pass()  argument
354 		smp_ops->message_pass(cpu, msg);  in do_message_pass()
357 		smp_muxed_ipi_message_pass(cpu, msg);  in do_message_pass()
361 void arch_smp_send_reschedule(int cpu)  in arch_smp_send_reschedule()  argument
364 		do_message_pass(cpu, PPC_MSG_RESCHEDULE);  in arch_smp_send_reschedule()
368 void arch_send_call_function_single_ipi(int cpu)  in arch_send_call_function_single_ipi()  argument
370 	do_message_pass(cpu, PPC_MSG_CALL_FUNCTION);  in arch_send_call_function_single_ipi()
375 	unsigned int cpu;  in arch_send_call_function_ipi_mask()  local
377 	for_each_cpu(cpu, mask)  in arch_send_call_function_ipi_mask()
378 		do_message_pass(cpu, PPC_MSG_CALL_FUNCTION);  in arch_send_call_function_ipi_mask()
469 static void do_smp_send_nmi_ipi(int cpu, bool safe)  in do_smp_send_nmi_ipi()  argument
471 	if (!safe && smp_ops->cause_nmi_ipi && smp_ops->cause_nmi_ipi(cpu))  in do_smp_send_nmi_ipi()
474 	if (cpu >= 0) {  in do_smp_send_nmi_ipi()
475 		do_message_pass(cpu, PPC_MSG_NMI_IPI);  in do_smp_send_nmi_ipi()
493 static int __smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *),  in __smp_send_nmi_ipi()  argument
500 	BUG_ON(cpu == me);  in __smp_send_nmi_ipi()
501 	BUG_ON(cpu < 0 && cpu != NMI_IPI_ALL_OTHERS);  in __smp_send_nmi_ipi()
517 	if (cpu < 0) {  in __smp_send_nmi_ipi()
522 		cpumask_set_cpu(cpu, &nmi_ipi_pending_mask);  in __smp_send_nmi_ipi()
529 	do_smp_send_nmi_ipi(cpu, safe);  in __smp_send_nmi_ipi()
558 int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)  in smp_send_nmi_ipi()  argument
560 	return __smp_send_nmi_ipi(cpu, fn, delay_us, false);  in smp_send_nmi_ipi()
563 int smp_send_safe_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)  in smp_send_safe_nmi_ipi()  argument
565 	return __smp_send_nmi_ipi(cpu, fn, delay_us, true);  in smp_send_safe_nmi_ipi()
572 	unsigned int cpu;  in tick_broadcast()  local
574 	for_each_cpu(cpu, mask)  in tick_broadcast()
575 		do_message_pass(cpu, PPC_MSG_TICK_BROADCAST);  in tick_broadcast()
594 	int cpu;  in crash_send_ipi()  local
598 		for_each_present_cpu(cpu) {  in crash_send_ipi()
599 			if (cpu_online(cpu))  in crash_send_ipi()
610 			do_smp_send_nmi_ipi(cpu, false);  in crash_send_ipi()
866 static int get_cpu_thread_group_start(int cpu, struct thread_groups *tg)  in get_cpu_thread_group_start()  argument
868 	int hw_cpu_id = get_hard_smp_processor_id(cpu);  in get_cpu_thread_group_start()
885 static struct thread_groups *__init get_thread_groups(int cpu,  in get_thread_groups()  argument
889 	struct device_node *dn = of_get_cpu_node(cpu, NULL);  in get_thread_groups()
890 	struct thread_groups_list *cpu_tgl = &tgl[cpu];  in get_thread_groups()
921 					       int cpu, int cpu_group_start)  in update_mask_from_threadgroup()  argument
923 	int first_thread = cpu_first_thread_sibling(cpu);  in update_mask_from_threadgroup()
926 	zalloc_cpumask_var_node(mask, GFP_KERNEL, cpu_to_node(cpu));  in update_mask_from_threadgroup()
943 static int __init init_thread_group_cache_map(int cpu, int cache_property)  in init_thread_group_cache_map()  argument
954 	tg = get_thread_groups(cpu, cache_property, &err);  in init_thread_group_cache_map()
959 	cpu_group_start = get_cpu_thread_group_start(cpu, tg);  in init_thread_group_cache_map()
967 		mask = &per_cpu(thread_group_l1_cache_map, cpu);  in init_thread_group_cache_map()
968 		update_mask_from_threadgroup(mask, tg, cpu, cpu_group_start);  in init_thread_group_cache_map()
971 		mask = &per_cpu(thread_group_l2_cache_map, cpu);  in init_thread_group_cache_map()
972 		update_mask_from_threadgroup(mask, tg, cpu, cpu_group_start);  in init_thread_group_cache_map()
973 		mask = &per_cpu(thread_group_l3_cache_map, cpu);  in init_thread_group_cache_map()
974 		update_mask_from_threadgroup(mask, tg, cpu, cpu_group_start);  in init_thread_group_cache_map()
1030 static const struct cpumask *shared_cache_mask(int cpu)  in shared_cache_mask()  argument
1032 	return per_cpu(cpu_l2_cache_map, cpu);  in shared_cache_mask()
1036 static const struct cpumask *smallcore_smt_mask(int cpu)  in smallcore_smt_mask()  argument
1038 	return cpu_smallcore_mask(cpu);  in smallcore_smt_mask()
1042 static struct cpumask *cpu_coregroup_mask(int cpu)  in cpu_coregroup_mask()  argument
1044 	return per_cpu(cpu_coregroup_map, cpu);  in cpu_coregroup_mask()
1056 static const struct cpumask *cpu_mc_mask(int cpu)  in cpu_mc_mask()  argument
1058 	return cpu_coregroup_mask(cpu);  in cpu_mc_mask()
1063 	int cpu;  in init_big_cores()  local
1065 	for_each_possible_cpu(cpu) {  in init_big_cores()
1066 		int err = init_thread_group_cache_map(cpu, THREAD_GROUP_SHARE_L1);  in init_big_cores()
1071 		zalloc_cpumask_var_node(&per_cpu(cpu_smallcore_map, cpu),  in init_big_cores()
1073 					cpu_to_node(cpu));  in init_big_cores()
1078 	for_each_possible_cpu(cpu) {  in init_big_cores()
1079 		int err = init_thread_group_cache_map(cpu, THREAD_GROUP_SHARE_L2_L3);  in init_big_cores()
1094 	unsigned int cpu, num_threads;  in smp_prepare_cpus()  local
1108 	for_each_possible_cpu(cpu) {  in smp_prepare_cpus()
1109 		zalloc_cpumask_var_node(&per_cpu(cpu_sibling_map, cpu),  in smp_prepare_cpus()
1110 					GFP_KERNEL, cpu_to_node(cpu));  in smp_prepare_cpus()
1111 		zalloc_cpumask_var_node(&per_cpu(cpu_l2_cache_map, cpu),  in smp_prepare_cpus()
1112 					GFP_KERNEL, cpu_to_node(cpu));  in smp_prepare_cpus()
1113 		zalloc_cpumask_var_node(&per_cpu(cpu_core_map, cpu),  in smp_prepare_cpus()
1114 					GFP_KERNEL, cpu_to_node(cpu));  in smp_prepare_cpus()
1116 			zalloc_cpumask_var_node(&per_cpu(cpu_coregroup_map, cpu),  in smp_prepare_cpus()
1117 						GFP_KERNEL, cpu_to_node(cpu));  in smp_prepare_cpus()
1123 		if (cpu_present(cpu)) {  in smp_prepare_cpus()
1124 			set_cpu_numa_node(cpu, numa_cpu_lookup_table[cpu]);  in smp_prepare_cpus()
1125 			set_cpu_numa_mem(cpu,  in smp_prepare_cpus()
1126 				local_memory_node(numa_cpu_lookup_table[cpu]));  in smp_prepare_cpus()
1183 	unsigned int cpu = smp_processor_id();  in generic_cpu_disable()  local
1185 	if (cpu == boot_cpuid)  in generic_cpu_disable()
1188 	set_cpu_online(cpu, false);  in generic_cpu_disable()
1210 void generic_cpu_die(unsigned int cpu)  in generic_cpu_die()  argument
1216 		if (is_cpu_dead(cpu))  in generic_cpu_die()
1220 	printk(KERN_ERR "CPU%d didn't die...\n", cpu);  in generic_cpu_die()
1223 void generic_set_cpu_dead(unsigned int cpu)  in generic_set_cpu_dead()  argument
1225 	per_cpu(cpu_state, cpu) = CPU_DEAD;  in generic_set_cpu_dead()
1233 void generic_set_cpu_up(unsigned int cpu)  in generic_set_cpu_up()  argument
1235 	per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;  in generic_set_cpu_up()
1238 int generic_check_cpu_restart(unsigned int cpu)  in generic_check_cpu_restart()  argument
1240 	return per_cpu(cpu_state, cpu) == CPU_UP_PREPARE;  in generic_check_cpu_restart()
1243 int is_cpu_dead(unsigned int cpu)  in is_cpu_dead()  argument
1245 	return per_cpu(cpu_state, cpu) == CPU_DEAD;  in is_cpu_dead()
1259 static void cpu_idle_thread_init(unsigned int cpu, struct task_struct *idle)  in cpu_idle_thread_init()  argument
1262 	paca_ptrs[cpu]->__current = idle;  in cpu_idle_thread_init()
1263 	paca_ptrs[cpu]->kstack = (unsigned long)task_stack_page(idle) +  in cpu_idle_thread_init()
1266 	task_thread_info(idle)->cpu = cpu;  in cpu_idle_thread_init()
1267 	secondary_current = current_set[cpu] = idle;  in cpu_idle_thread_init()
1270 int __cpu_up(unsigned int cpu, struct task_struct *tidle)  in __cpu_up()  argument
1283 	    cpu_thread_in_subcore(cpu))  in __cpu_up()
1287 	    (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu)))  in __cpu_up()
1290 	cpu_idle_thread_init(cpu, tidle);  in __cpu_up()
1297 		rc = smp_ops->prepare_cpu(cpu);  in __cpu_up()
1305 	cpu_callin_map[cpu] = 0;  in __cpu_up()
1314 	DBG("smp: kicking cpu %d\n", cpu);  in __cpu_up()
1315 	rc = smp_ops->kick_cpu(cpu);  in __cpu_up()
1317 		pr_err("smp: failed starting cpu %d (rc %d)\n", cpu, rc);  in __cpu_up()
1329 	spin_until_cond(cpu_callin_map[cpu] || time_is_before_jiffies(deadline));  in __cpu_up()
1331 	if (!cpu_callin_map[cpu] && system_state >= SYSTEM_RUNNING) {  in __cpu_up()
1336 		while (!cpu_callin_map[cpu] && time_is_after_jiffies(deadline))  in __cpu_up()
1340 	if (!cpu_callin_map[cpu]) {  in __cpu_up()
1341 		printk(KERN_ERR "Processor %u is stuck.\n", cpu);  in __cpu_up()
1345 	DBG("Processor %u found.\n", cpu);  in __cpu_up()
1351 	spin_until_cond(cpu_online(cpu));  in __cpu_up()
1359 int cpu_to_core_id(int cpu)  in cpu_to_core_id()  argument
1364 	np = of_get_cpu_node(cpu, NULL);  in cpu_to_core_id()
1376 int cpu_core_index_of_thread(int cpu)  in cpu_core_index_of_thread()  argument
1378 	return cpu >> threads_shift;  in cpu_core_index_of_thread()
1391 static struct device_node *cpu_to_l2cache(int cpu)  in cpu_to_l2cache()  argument
1396 	if (!cpu_present(cpu))  in cpu_to_l2cache()
1399 	np = of_get_cpu_node(cpu, NULL);  in cpu_to_l2cache()
1410 static bool update_mask_by_l2(int cpu, cpumask_var_t *mask)  in update_mask_by_l2()  argument
1424 		cpumask_set_cpu(cpu, cpu_l2_cache_mask(cpu));  in update_mask_by_l2()
1426 		for_each_cpu(i, per_cpu(thread_group_l2_cache_map, cpu)) {  in update_mask_by_l2()
1428 				set_cpus_related(i, cpu, cpu_l2_cache_mask);  in update_mask_by_l2()
1432 		if (!cpumask_equal(submask_fn(cpu), cpu_l2_cache_mask(cpu)) &&  in update_mask_by_l2()
1433 		    !cpumask_subset(submask_fn(cpu), cpu_l2_cache_mask(cpu))) {  in update_mask_by_l2()
1435 				     cpu);  in update_mask_by_l2()
1441 	l2_cache = cpu_to_l2cache(cpu);  in update_mask_by_l2()
1444 		for_each_cpu(i, cpu_sibling_mask(cpu))  in update_mask_by_l2()
1445 			set_cpus_related(cpu, i, cpu_l2_cache_mask);  in update_mask_by_l2()
1450 	cpumask_and(*mask, cpu_online_mask, cpu_cpu_mask(cpu));  in update_mask_by_l2()
1453 	or_cpumasks_related(cpu, cpu, submask_fn, cpu_l2_cache_mask);  in update_mask_by_l2()
1456 	cpumask_andnot(*mask, *mask, cpu_l2_cache_mask(cpu));  in update_mask_by_l2()
1467 			or_cpumasks_related(cpu, i, submask_fn, cpu_l2_cache_mask);  in update_mask_by_l2()
1481 static void remove_cpu_from_masks(int cpu)  in remove_cpu_from_masks()  argument
1486 	unmap_cpu_from_node(cpu);  in remove_cpu_from_masks()
1491 	for_each_cpu(i, mask_fn(cpu)) {  in remove_cpu_from_masks()
1492 		set_cpus_unrelated(cpu, i, cpu_l2_cache_mask);  in remove_cpu_from_masks()
1493 		set_cpus_unrelated(cpu, i, cpu_sibling_mask);  in remove_cpu_from_masks()
1495 			set_cpus_unrelated(cpu, i, cpu_smallcore_mask);  in remove_cpu_from_masks()
1498 	for_each_cpu(i, cpu_core_mask(cpu))  in remove_cpu_from_masks()
1499 		set_cpus_unrelated(cpu, i, cpu_core_mask);  in remove_cpu_from_masks()
1502 		for_each_cpu(i, cpu_coregroup_mask(cpu))  in remove_cpu_from_masks()
1503 			set_cpus_unrelated(cpu, i, cpu_coregroup_mask);  in remove_cpu_from_masks()
1508 static inline void add_cpu_to_smallcore_masks(int cpu)  in add_cpu_to_smallcore_masks()  argument
1515 	cpumask_set_cpu(cpu, cpu_smallcore_mask(cpu));  in add_cpu_to_smallcore_masks()
1517 	for_each_cpu(i, per_cpu(thread_group_l1_cache_map, cpu)) {  in add_cpu_to_smallcore_masks()
1519 			set_cpus_related(i, cpu, cpu_smallcore_mask);  in add_cpu_to_smallcore_masks()
1523 static void update_coregroup_mask(int cpu, cpumask_var_t *mask)  in update_coregroup_mask()  argument
1526 	int coregroup_id = cpu_to_coregroup_id(cpu);  in update_coregroup_mask()
1534 		for_each_cpu(i, submask_fn(cpu))  in update_coregroup_mask()
1535 			set_cpus_related(cpu, i, cpu_coregroup_mask);  in update_coregroup_mask()
1540 	cpumask_and(*mask, cpu_online_mask, cpu_cpu_mask(cpu));  in update_coregroup_mask()
1543 	or_cpumasks_related(cpu, cpu, submask_fn, cpu_coregroup_mask);  in update_coregroup_mask()
1546 	cpumask_andnot(*mask, *mask, cpu_coregroup_mask(cpu));  in update_coregroup_mask()
1551 			or_cpumasks_related(cpu, i, submask_fn, cpu_coregroup_mask);  in update_coregroup_mask()
1559 static void add_cpu_to_masks(int cpu)  in add_cpu_to_masks()  argument
1562 	int first_thread = cpu_first_thread_sibling(cpu);  in add_cpu_to_masks()
1572 	map_cpu_to_node(cpu, cpu_to_node(cpu));  in add_cpu_to_masks()
1573 	cpumask_set_cpu(cpu, cpu_sibling_mask(cpu));  in add_cpu_to_masks()
1574 	cpumask_set_cpu(cpu, cpu_core_mask(cpu));  in add_cpu_to_masks()
1578 			set_cpus_related(i, cpu, cpu_sibling_mask);  in add_cpu_to_masks()
1580 	add_cpu_to_smallcore_masks(cpu);  in add_cpu_to_masks()
1583 	ret = alloc_cpumask_var_node(&mask, GFP_ATOMIC, cpu_to_node(cpu));  in add_cpu_to_masks()
1584 	update_mask_by_l2(cpu, &mask);  in add_cpu_to_masks()
1587 		update_coregroup_mask(cpu, &mask);  in add_cpu_to_masks()
1590 		chip_id = cpu_to_chip_id(cpu);  in add_cpu_to_masks()
1596 	or_cpumasks_related(cpu, cpu, submask_fn, cpu_core_mask);  in add_cpu_to_masks()
1599 	cpumask_andnot(mask, cpu_online_mask, cpu_core_mask(cpu));  in add_cpu_to_masks()
1603 		cpumask_and(mask, mask, cpu_cpu_mask(cpu));  in add_cpu_to_masks()
1607 			or_cpumasks_related(cpu, i, submask_fn, cpu_core_mask);  in add_cpu_to_masks()
1621 	unsigned int cpu = raw_smp_processor_id();  in start_secondary()  local
1630 	cpumask_set_cpu(cpu, mm_cpumask(&init_mm));  in start_secondary()
1633 	smp_store_cpu_info(cpu);  in start_secondary()
1635 	rcutree_report_cpu_starting(cpu);  in start_secondary()
1636 	cpu_callin_map[cpu] = 1;  in start_secondary()
1639 		smp_ops->setup_cpu(cpu);  in start_secondary()
1651 	set_numa_node(numa_cpu_lookup_table[cpu]);  in start_secondary()
1652 	set_numa_mem(local_memory_node(numa_cpu_lookup_table[cpu]));  in start_secondary()
1655 	add_cpu_to_masks(cpu);  in start_secondary()
1663 		struct cpumask *mask = cpu_l2_cache_mask(cpu);  in start_secondary()
1668 		if (cpumask_weight(mask) > cpumask_weight(sibling_mask(cpu)))  in start_secondary()
1673 	notify_cpu_starting(cpu);  in start_secondary()
1674 	set_cpu_online(cpu, true);  in start_secondary()
1749 int arch_asym_cpu_priority(int cpu)  in arch_asym_cpu_priority()  argument
1752 		return -cpu / threads_per_core;  in arch_asym_cpu_priority()
1754 	return -cpu;  in arch_asym_cpu_priority()
1760 	int cpu = smp_processor_id();  in __cpu_disable()  local
1773 	remove_cpu_from_masks(cpu);  in __cpu_disable()
1778 void __cpu_die(unsigned int cpu)  in __cpu_die()  argument
1784 	VM_WARN_ON_ONCE(!cpumask_test_cpu(cpu, mm_cpumask(&init_mm)));  in __cpu_die()
1786 	cpumask_clear_cpu(cpu, mm_cpumask(&init_mm));  in __cpu_die()
1789 		smp_ops->cpu_die(cpu);  in __cpu_die()