122 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
125 	struct acpi_processor_power *pwr = &pr->power;  in lapic_timer_check_state()
128 	if (cpu_has(&cpu_data(pr->id), X86_FEATURE_ARAT))  in lapic_timer_check_state()
142 		pr->power.timer_broadcast_on_state = state;  in lapic_timer_check_state()
147 	struct acpi_processor *pr = (struct acpi_processor *) arg;  in __lapic_timer_propagate_broadcast()  local
149 	if (pr->power.timer_broadcast_on_state < INT_MAX)  in __lapic_timer_propagate_broadcast()
155 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)  in lapic_timer_propagate_broadcast()  argument
157 	smp_call_function_single(pr->id, __lapic_timer_propagate_broadcast,  in lapic_timer_propagate_broadcast()
158 				 (void *)pr, 1);  in lapic_timer_propagate_broadcast()
162 static bool lapic_timer_needs_broadcast(struct acpi_processor *pr,  in lapic_timer_needs_broadcast()  argument
165 	return cx - pr->power.states >= pr->power.timer_broadcast_on_state;  in lapic_timer_needs_broadcast()
170 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
172 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) { }  in lapic_timer_propagate_broadcast()  argument
174 static bool lapic_timer_needs_broadcast(struct acpi_processor *pr,  in lapic_timer_needs_broadcast()  argument
208 static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)  in acpi_processor_get_power_info_fadt()  argument
211 	if (!pr->pblk)  in acpi_processor_get_power_info_fadt()
215 	pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2;  in acpi_processor_get_power_info_fadt()
216 	pr->power.states[ACPI_STATE_C3].type = ACPI_STATE_C3;  in acpi_processor_get_power_info_fadt()
229 	pr->power.states[ACPI_STATE_C2].address = pr->pblk + 4;  in acpi_processor_get_power_info_fadt()
230 	pr->power.states[ACPI_STATE_C3].address = pr->pblk + 5;  in acpi_processor_get_power_info_fadt()
233 	pr->power.states[ACPI_STATE_C2].latency = acpi_gbl_FADT.c2_latency;  in acpi_processor_get_power_info_fadt()
234 	pr->power.states[ACPI_STATE_C3].latency = acpi_gbl_FADT.c3_latency;  in acpi_processor_get_power_info_fadt()
241 		acpi_handle_debug(pr->handle, "C2 latency too large [%d]\n",  in acpi_processor_get_power_info_fadt()
244 		pr->power.states[ACPI_STATE_C2].address = 0;  in acpi_processor_get_power_info_fadt()
252 		acpi_handle_debug(pr->handle, "C3 latency too large [%d]\n",  in acpi_processor_get_power_info_fadt()
255 		pr->power.states[ACPI_STATE_C3].address = 0;  in acpi_processor_get_power_info_fadt()
258 	acpi_handle_debug(pr->handle, "lvl2[0x%08x] lvl3[0x%08x]\n",  in acpi_processor_get_power_info_fadt()
259 			  pr->power.states[ACPI_STATE_C2].address,  in acpi_processor_get_power_info_fadt()
260 			  pr->power.states[ACPI_STATE_C3].address);  in acpi_processor_get_power_info_fadt()
262 	snprintf(pr->power.states[ACPI_STATE_C2].desc,  in acpi_processor_get_power_info_fadt()
264 			 pr->power.states[ACPI_STATE_C2].address);  in acpi_processor_get_power_info_fadt()
265 	snprintf(pr->power.states[ACPI_STATE_C3].desc,  in acpi_processor_get_power_info_fadt()
267 			 pr->power.states[ACPI_STATE_C3].address);  in acpi_processor_get_power_info_fadt()
272 static int acpi_processor_get_power_info_default(struct acpi_processor *pr)  in acpi_processor_get_power_info_default()  argument
274 	if (!pr->power.states[ACPI_STATE_C1].valid) {  in acpi_processor_get_power_info_default()
277 		pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;  in acpi_processor_get_power_info_default()
278 		pr->power.states[ACPI_STATE_C1].valid = 1;  in acpi_processor_get_power_info_default()
279 		pr->power.states[ACPI_STATE_C1].entry_method = ACPI_CSTATE_HALT;  in acpi_processor_get_power_info_default()
281 		snprintf(pr->power.states[ACPI_STATE_C1].desc,  in acpi_processor_get_power_info_default()
285 	pr->power.states[ACPI_STATE_C0].valid = 1;  in acpi_processor_get_power_info_default()
289 static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)  in acpi_processor_get_power_info_cst()  argument
296 	ret = acpi_processor_evaluate_cst(pr->handle, pr->id, &pr->power);  in acpi_processor_get_power_info_cst()
300 	if (!pr->power.count)  in acpi_processor_get_power_info_cst()
303 	pr->flags.has_cst = 1;  in acpi_processor_get_power_info_cst()
307 static void acpi_processor_power_verify_c3(struct acpi_processor *pr,  in acpi_processor_power_verify_c3()  argument
325 		acpi_handle_debug(pr->handle,  in acpi_processor_power_verify_c3()
333 		acpi_processor_power_init_bm_check(&(pr->flags), pr->id);  in acpi_processor_power_verify_c3()
334 		bm_check_flag = pr->flags.bm_check;  in acpi_processor_power_verify_c3()
335 		bm_control_flag = pr->flags.bm_control;  in acpi_processor_power_verify_c3()
337 		pr->flags.bm_check = bm_check_flag;  in acpi_processor_power_verify_c3()
338 		pr->flags.bm_control = bm_control_flag;  in acpi_processor_power_verify_c3()
341 	if (pr->flags.bm_check) {  in acpi_processor_power_verify_c3()
342 		if (!pr->flags.bm_control) {  in acpi_processor_power_verify_c3()
343 			if (pr->flags.has_cst != 1) {  in acpi_processor_power_verify_c3()
345 				acpi_handle_debug(pr->handle,  in acpi_processor_power_verify_c3()
350 				acpi_handle_debug(pr->handle,  in acpi_processor_power_verify_c3()
360 			acpi_handle_debug(pr->handle,  in acpi_processor_power_verify_c3()
412 static int acpi_processor_power_verify(struct acpi_processor *pr)  in acpi_processor_power_verify()  argument
420 	pr->power.timer_broadcast_on_state = INT_MAX;  in acpi_processor_power_verify()
423 		struct acpi_processor_cx *cx = &pr->power.states[i];  in acpi_processor_power_verify()
437 			acpi_processor_power_verify_c3(pr, cx);  in acpi_processor_power_verify()
447 		lapic_timer_check_state(i, pr, cx);  in acpi_processor_power_verify()
454 		sort(&pr->power.states[1], max_cstate,  in acpi_processor_power_verify()
460 	lapic_timer_propagate_broadcast(pr);  in acpi_processor_power_verify()
465 static int acpi_processor_get_cstate_info(struct acpi_processor *pr)  in acpi_processor_get_cstate_info()  argument
475 	memset(pr->power.states, 0, sizeof(pr->power.states));  in acpi_processor_get_cstate_info()
477 	result = acpi_processor_get_power_info_cst(pr);  in acpi_processor_get_cstate_info()
479 		result = acpi_processor_get_power_info_fadt(pr);  in acpi_processor_get_cstate_info()
484 	acpi_processor_get_power_info_default(pr);  in acpi_processor_get_cstate_info()
486 	pr->power.count = acpi_processor_power_verify(pr);  in acpi_processor_get_cstate_info()
493 		if (pr->power.states[i].valid) {  in acpi_processor_get_cstate_info()
494 			pr->power.count = i;  in acpi_processor_get_cstate_info()
495 			pr->flags.power = 1;  in acpi_processor_get_cstate_info()
591 static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr)  in acpi_idle_fallback_to_c1()  argument
593 	return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst &&  in acpi_idle_fallback_to_c1()
608 			       struct acpi_processor *pr,  in acpi_idle_enter_bm()  argument
624 	bool dis_bm = pr->flags.bm_control;  in acpi_idle_enter_bm()
668 	struct acpi_processor *pr;  in acpi_idle_enter()  local
670 	pr = __this_cpu_read(processors);  in acpi_idle_enter()
671 	if (unlikely(!pr))  in acpi_idle_enter()
675 		if (cx->type == ACPI_STATE_C3 && pr->flags.bm_check)  in acpi_idle_enter()
676 			return acpi_idle_enter_bm(drv, pr, cx, index);  in acpi_idle_enter()
679 		if (acpi_idle_fallback_to_c1(pr) && num_online_cpus() > 1) {  in acpi_idle_enter()
699 		struct acpi_processor *pr = __this_cpu_read(processors);  in acpi_idle_enter_s2idle()  local
701 		if (unlikely(!pr))  in acpi_idle_enter_s2idle()
704 		if (pr->flags.bm_check) {  in acpi_idle_enter_s2idle()
709 			acpi_idle_enter_bm(drv, pr, cx, index);  in acpi_idle_enter_s2idle()
722 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_cx()  argument
734 		cx = &pr->power.states[i];  in acpi_processor_setup_cpuidle_cx()
741 		if (lapic_timer_needs_broadcast(pr, cx))  in acpi_processor_setup_cpuidle_cx()
746 			if (pr->flags.bm_check)  in acpi_processor_setup_cpuidle_cx()
761 static int acpi_processor_setup_cstates(struct acpi_processor *pr)  in acpi_processor_setup_cstates()  argument
779 		cx = &pr->power.states[i];  in acpi_processor_setup_cstates()
803 		if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))  in acpi_processor_setup_cstates()
841 static int acpi_processor_get_cstate_info(struct acpi_processor *pr)  in acpi_processor_get_cstate_info()  argument
846 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_cx()  argument
852 static int acpi_processor_setup_cstates(struct acpi_processor *pr)  in acpi_processor_setup_cstates()  argument
1033 static int flatten_lpi_states(struct acpi_processor *pr,  in flatten_lpi_states()  argument
1054 		flpi = &pr->power.lpi_states[flat_state_cnt];  in flatten_lpi_states()
1078 static int acpi_processor_get_lpi_info(struct acpi_processor *pr)  in acpi_processor_get_lpi_info()  argument
1082 	acpi_handle handle = pr->handle, pr_ahandle;  in acpi_processor_get_lpi_info()
1095 	handle = pr->handle;  in acpi_processor_get_lpi_info()
1099 	flatten_lpi_states(pr, prev, NULL);  in acpi_processor_get_lpi_info()
1118 		flatten_lpi_states(pr, curr, prev);  in acpi_processor_get_lpi_info()
1125 	pr->power.count = flat_state_cnt;  in acpi_processor_get_lpi_info()
1127 	for (i = 0; i < pr->power.count; i++)  in acpi_processor_get_lpi_info()
1128 		pr->power.lpi_states[i].index = i;  in acpi_processor_get_lpi_info()
1131 	pr->flags.has_lpi = 1;  in acpi_processor_get_lpi_info()
1132 	pr->flags.power = 1;  in acpi_processor_get_lpi_info()
1158 	struct acpi_processor *pr;  in acpi_idle_lpi_enter()  local
1161 	pr = __this_cpu_read(processors);  in acpi_idle_lpi_enter()
1163 	if (unlikely(!pr))  in acpi_idle_lpi_enter()
1166 	lpi = &pr->power.lpi_states[index];  in acpi_idle_lpi_enter()
1173 static int acpi_processor_setup_lpi_states(struct acpi_processor *pr)  in acpi_processor_setup_lpi_states()  argument
1180 	if (!pr->flags.has_lpi)  in acpi_processor_setup_lpi_states()
1183 	for (i = 0; i < pr->power.count && i < CPUIDLE_STATE_MAX; i++) {  in acpi_processor_setup_lpi_states()
1184 		lpi = &pr->power.lpi_states[i];  in acpi_processor_setup_lpi_states()
1208 static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)  in acpi_processor_setup_cpuidle_states()  argument
1213 	if (!pr->flags.power_setup_done || !pr->flags.power)  in acpi_processor_setup_cpuidle_states()
1222 	if (pr->flags.has_lpi)  in acpi_processor_setup_cpuidle_states()
1223 		return acpi_processor_setup_lpi_states(pr);  in acpi_processor_setup_cpuidle_states()
1225 	return acpi_processor_setup_cstates(pr);  in acpi_processor_setup_cpuidle_states()
1235 static int acpi_processor_setup_cpuidle_dev(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_dev()  argument
1238 	if (!pr->flags.power_setup_done || !pr->flags.power || !dev)  in acpi_processor_setup_cpuidle_dev()
1241 	dev->cpu = pr->id;  in acpi_processor_setup_cpuidle_dev()
1242 	if (pr->flags.has_lpi)  in acpi_processor_setup_cpuidle_dev()
1243 		return acpi_processor_ffh_lpi_probe(pr->id);  in acpi_processor_setup_cpuidle_dev()
1245 	return acpi_processor_setup_cpuidle_cx(pr, dev);  in acpi_processor_setup_cpuidle_dev()
1248 static int acpi_processor_get_power_info(struct acpi_processor *pr)  in acpi_processor_get_power_info()  argument
1252 	ret = acpi_processor_get_lpi_info(pr);  in acpi_processor_get_power_info()
1254 		ret = acpi_processor_get_cstate_info(pr);  in acpi_processor_get_power_info()
1259 int acpi_processor_hotplug(struct acpi_processor *pr)  in acpi_processor_hotplug()  argument
1267 	if (!pr->flags.power_setup_done)  in acpi_processor_hotplug()
1270 	dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_hotplug()
1273 	ret = acpi_processor_get_power_info(pr);  in acpi_processor_hotplug()
1274 	if (!ret && pr->flags.power) {  in acpi_processor_hotplug()
1275 		acpi_processor_setup_cpuidle_dev(pr, dev);  in acpi_processor_hotplug()
1283 int acpi_processor_power_state_has_changed(struct acpi_processor *pr)  in acpi_processor_power_state_has_changed()  argument
1292 	if (!pr->flags.power_setup_done)  in acpi_processor_power_state_has_changed()
1301 	if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {  in acpi_processor_power_state_has_changed()
1317 		acpi_processor_get_power_info(pr);  in acpi_processor_power_state_has_changed()
1318 		acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_power_state_has_changed()
1341 int acpi_processor_power_init(struct acpi_processor *pr)  in acpi_processor_power_init()  argument
1351 	if (!acpi_processor_get_power_info(pr))  in acpi_processor_power_init()
1352 		pr->flags.power_setup_done = 1;  in acpi_processor_power_init()
1359 	if (pr->flags.power) {  in acpi_processor_power_init()
1362 			acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_power_init()
1373 		per_cpu(acpi_cpuidle_device, pr->id) = dev;  in acpi_processor_power_init()
1375 		acpi_processor_setup_cpuidle_dev(pr, dev);  in acpi_processor_power_init()
1391 int acpi_processor_power_exit(struct acpi_processor *pr)  in acpi_processor_power_exit()  argument
1393 	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_power_exit()
1398 	if (pr->flags.power) {  in acpi_processor_power_exit()
1405 	pr->flags.power_setup_done = 0;  in acpi_processor_power_exit()