126 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
129 	struct acpi_processor_power *pwr = &pr->power;  in lapic_timer_check_state()
132 	if (cpu_has(&cpu_data(pr->id), X86_FEATURE_ARAT))  in lapic_timer_check_state()
146 		pr->power.timer_broadcast_on_state = state;  in lapic_timer_check_state()
151 	struct acpi_processor *pr = (struct acpi_processor *) arg;  in __lapic_timer_propagate_broadcast()  local
153 	if (pr->power.timer_broadcast_on_state < INT_MAX)  in __lapic_timer_propagate_broadcast()
159 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)  in lapic_timer_propagate_broadcast()  argument
161 	smp_call_function_single(pr->id, __lapic_timer_propagate_broadcast,  in lapic_timer_propagate_broadcast()
162 				 (void *)pr, 1);  in lapic_timer_propagate_broadcast()
166 static bool lapic_timer_needs_broadcast(struct acpi_processor *pr,  in lapic_timer_needs_broadcast()  argument
169 	return cx - pr->power.states >= pr->power.timer_broadcast_on_state;  in lapic_timer_needs_broadcast()
174 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
176 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) { }  in lapic_timer_propagate_broadcast()  argument
178 static bool lapic_timer_needs_broadcast(struct acpi_processor *pr,  in lapic_timer_needs_broadcast()  argument
212 static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)  in acpi_processor_get_power_info_fadt()  argument
215 	if (!pr->pblk)  in acpi_processor_get_power_info_fadt()
219 	pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2;  in acpi_processor_get_power_info_fadt()
220 	pr->power.states[ACPI_STATE_C3].type = ACPI_STATE_C3;  in acpi_processor_get_power_info_fadt()
233 	pr->power.states[ACPI_STATE_C2].address = pr->pblk + 4;  in acpi_processor_get_power_info_fadt()
234 	pr->power.states[ACPI_STATE_C3].address = pr->pblk + 5;  in acpi_processor_get_power_info_fadt()
237 	pr->power.states[ACPI_STATE_C2].latency = acpi_gbl_FADT.c2_latency;  in acpi_processor_get_power_info_fadt()
238 	pr->power.states[ACPI_STATE_C3].latency = acpi_gbl_FADT.c3_latency;  in acpi_processor_get_power_info_fadt()
248 		pr->power.states[ACPI_STATE_C2].address = 0;  in acpi_processor_get_power_info_fadt()
259 		pr->power.states[ACPI_STATE_C3].address = 0;  in acpi_processor_get_power_info_fadt()
264 			  pr->power.states[ACPI_STATE_C2].address,  in acpi_processor_get_power_info_fadt()
265 			  pr->power.states[ACPI_STATE_C3].address));  in acpi_processor_get_power_info_fadt()
267 	snprintf(pr->power.states[ACPI_STATE_C2].desc,  in acpi_processor_get_power_info_fadt()
269 			 pr->power.states[ACPI_STATE_C2].address);  in acpi_processor_get_power_info_fadt()
270 	snprintf(pr->power.states[ACPI_STATE_C3].desc,  in acpi_processor_get_power_info_fadt()
272 			 pr->power.states[ACPI_STATE_C3].address);  in acpi_processor_get_power_info_fadt()
277 static int acpi_processor_get_power_info_default(struct acpi_processor *pr)  in acpi_processor_get_power_info_default()  argument
279 	if (!pr->power.states[ACPI_STATE_C1].valid) {  in acpi_processor_get_power_info_default()
282 		pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;  in acpi_processor_get_power_info_default()
283 		pr->power.states[ACPI_STATE_C1].valid = 1;  in acpi_processor_get_power_info_default()
284 		pr->power.states[ACPI_STATE_C1].entry_method = ACPI_CSTATE_HALT;  in acpi_processor_get_power_info_default()
286 		snprintf(pr->power.states[ACPI_STATE_C1].desc,  in acpi_processor_get_power_info_default()
290 	pr->power.states[ACPI_STATE_C0].valid = 1;  in acpi_processor_get_power_info_default()
294 static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)  in acpi_processor_get_power_info_cst()  argument
301 	ret = acpi_processor_evaluate_cst(pr->handle, pr->id, &pr->power);  in acpi_processor_get_power_info_cst()
305 	if (!pr->power.count)  in acpi_processor_get_power_info_cst()
308 	pr->flags.has_cst = 1;  in acpi_processor_get_power_info_cst()
312 static void acpi_processor_power_verify_c3(struct acpi_processor *pr,  in acpi_processor_power_verify_c3()  argument
338 		acpi_processor_power_init_bm_check(&(pr->flags), pr->id);  in acpi_processor_power_verify_c3()
339 		bm_check_flag = pr->flags.bm_check;  in acpi_processor_power_verify_c3()
340 		bm_control_flag = pr->flags.bm_control;  in acpi_processor_power_verify_c3()
342 		pr->flags.bm_check = bm_check_flag;  in acpi_processor_power_verify_c3()
343 		pr->flags.bm_control = bm_control_flag;  in acpi_processor_power_verify_c3()
346 	if (pr->flags.bm_check) {  in acpi_processor_power_verify_c3()
347 		if (!pr->flags.bm_control) {  in acpi_processor_power_verify_c3()
348 			if (pr->flags.has_cst != 1) {  in acpi_processor_power_verify_c3()
417 static int acpi_processor_power_verify(struct acpi_processor *pr)  in acpi_processor_power_verify()  argument
425 	pr->power.timer_broadcast_on_state = INT_MAX;  in acpi_processor_power_verify()
428 		struct acpi_processor_cx *cx = &pr->power.states[i];  in acpi_processor_power_verify()
442 			acpi_processor_power_verify_c3(pr, cx);  in acpi_processor_power_verify()
452 		lapic_timer_check_state(i, pr, cx);  in acpi_processor_power_verify()
459 		sort(&pr->power.states[1], max_cstate,  in acpi_processor_power_verify()
465 	lapic_timer_propagate_broadcast(pr);  in acpi_processor_power_verify()
470 static int acpi_processor_get_cstate_info(struct acpi_processor *pr)  in acpi_processor_get_cstate_info()  argument
480 	memset(pr->power.states, 0, sizeof(pr->power.states));  in acpi_processor_get_cstate_info()
482 	result = acpi_processor_get_power_info_cst(pr);  in acpi_processor_get_cstate_info()
484 		result = acpi_processor_get_power_info_fadt(pr);  in acpi_processor_get_cstate_info()
489 	acpi_processor_get_power_info_default(pr);  in acpi_processor_get_cstate_info()
491 	pr->power.count = acpi_processor_power_verify(pr);  in acpi_processor_get_cstate_info()
498 		if (pr->power.states[i].valid) {  in acpi_processor_get_cstate_info()
499 			pr->power.count = i;  in acpi_processor_get_cstate_info()
500 			pr->flags.power = 1;  in acpi_processor_get_cstate_info()
596 static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr)  in acpi_idle_fallback_to_c1()  argument
598 	return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst &&  in acpi_idle_fallback_to_c1()
613 			       struct acpi_processor *pr,  in acpi_idle_enter_bm()  argument
629 	bool dis_bm = pr->flags.bm_control;  in acpi_idle_enter_bm()
673 	struct acpi_processor *pr;  in acpi_idle_enter()  local
675 	pr = __this_cpu_read(processors);  in acpi_idle_enter()
676 	if (unlikely(!pr))  in acpi_idle_enter()
680 		if (cx->type == ACPI_STATE_C3 && pr->flags.bm_check)  in acpi_idle_enter()
681 			return acpi_idle_enter_bm(drv, pr, cx, index);  in acpi_idle_enter()
684 		if (acpi_idle_fallback_to_c1(pr) && num_online_cpus() > 1) {  in acpi_idle_enter()
704 		struct acpi_processor *pr = __this_cpu_read(processors);  in acpi_idle_enter_s2idle()  local
706 		if (unlikely(!pr))  in acpi_idle_enter_s2idle()
709 		if (pr->flags.bm_check) {  in acpi_idle_enter_s2idle()
714 			acpi_idle_enter_bm(drv, pr, cx, index);  in acpi_idle_enter_s2idle()
727 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_cx()  argument
739 		cx = &pr->power.states[i];  in acpi_processor_setup_cpuidle_cx()
746 		if (lapic_timer_needs_broadcast(pr, cx))  in acpi_processor_setup_cpuidle_cx()
751 			if (pr->flags.bm_check)  in acpi_processor_setup_cpuidle_cx()
766 static int acpi_processor_setup_cstates(struct acpi_processor *pr)  in acpi_processor_setup_cstates()  argument
784 		cx = &pr->power.states[i];  in acpi_processor_setup_cstates()
808 		if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))  in acpi_processor_setup_cstates()
846 static int acpi_processor_get_cstate_info(struct acpi_processor *pr)  in acpi_processor_get_cstate_info()  argument
851 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_cx()  argument
857 static int acpi_processor_setup_cstates(struct acpi_processor *pr)  in acpi_processor_setup_cstates()  argument
1038 static int flatten_lpi_states(struct acpi_processor *pr,  in flatten_lpi_states()  argument
1059 		flpi = &pr->power.lpi_states[flat_state_cnt];  in flatten_lpi_states()
1088 static int acpi_processor_get_lpi_info(struct acpi_processor *pr)  in acpi_processor_get_lpi_info()  argument
1092 	acpi_handle handle = pr->handle, pr_ahandle;  in acpi_processor_get_lpi_info()
1097 	ret = acpi_processor_ffh_lpi_probe(pr->id);  in acpi_processor_get_lpi_info()
1110 	handle = pr->handle;  in acpi_processor_get_lpi_info()
1114 	flatten_lpi_states(pr, prev, NULL);  in acpi_processor_get_lpi_info()
1133 		flatten_lpi_states(pr, curr, prev);  in acpi_processor_get_lpi_info()
1140 	pr->power.count = flat_state_cnt;  in acpi_processor_get_lpi_info()
1142 	for (i = 0; i < pr->power.count; i++)  in acpi_processor_get_lpi_info()
1143 		pr->power.lpi_states[i].index = i;  in acpi_processor_get_lpi_info()
1146 	pr->flags.has_lpi = 1;  in acpi_processor_get_lpi_info()
1147 	pr->flags.power = 1;  in acpi_processor_get_lpi_info()
1168 	struct acpi_processor *pr;  in acpi_idle_lpi_enter()  local
1171 	pr = __this_cpu_read(processors);  in acpi_idle_lpi_enter()
1173 	if (unlikely(!pr))  in acpi_idle_lpi_enter()
1176 	lpi = &pr->power.lpi_states[index];  in acpi_idle_lpi_enter()
1183 static int acpi_processor_setup_lpi_states(struct acpi_processor *pr)  in acpi_processor_setup_lpi_states()  argument
1190 	if (!pr->flags.has_lpi)  in acpi_processor_setup_lpi_states()
1193 	for (i = 0; i < pr->power.count && i < CPUIDLE_STATE_MAX; i++) {  in acpi_processor_setup_lpi_states()
1194 		lpi = &pr->power.lpi_states[i];  in acpi_processor_setup_lpi_states()
1218 static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)  in acpi_processor_setup_cpuidle_states()  argument
1223 	if (!pr->flags.power_setup_done || !pr->flags.power)  in acpi_processor_setup_cpuidle_states()
1232 	if (pr->flags.has_lpi)  in acpi_processor_setup_cpuidle_states()
1233 		return acpi_processor_setup_lpi_states(pr);  in acpi_processor_setup_cpuidle_states()
1235 	return acpi_processor_setup_cstates(pr);  in acpi_processor_setup_cpuidle_states()
1245 static int acpi_processor_setup_cpuidle_dev(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_dev()  argument
1248 	if (!pr->flags.power_setup_done || !pr->flags.power || !dev)  in acpi_processor_setup_cpuidle_dev()
1251 	dev->cpu = pr->id;  in acpi_processor_setup_cpuidle_dev()
1252 	if (pr->flags.has_lpi)  in acpi_processor_setup_cpuidle_dev()
1253 		return acpi_processor_ffh_lpi_probe(pr->id);  in acpi_processor_setup_cpuidle_dev()
1255 	return acpi_processor_setup_cpuidle_cx(pr, dev);  in acpi_processor_setup_cpuidle_dev()
1258 static int acpi_processor_get_power_info(struct acpi_processor *pr)  in acpi_processor_get_power_info()  argument
1262 	ret = acpi_processor_get_lpi_info(pr);  in acpi_processor_get_power_info()
1264 		ret = acpi_processor_get_cstate_info(pr);  in acpi_processor_get_power_info()
1269 int acpi_processor_hotplug(struct acpi_processor *pr)  in acpi_processor_hotplug()  argument
1277 	if (!pr->flags.power_setup_done)  in acpi_processor_hotplug()
1280 	dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_hotplug()
1283 	ret = acpi_processor_get_power_info(pr);  in acpi_processor_hotplug()
1284 	if (!ret && pr->flags.power) {  in acpi_processor_hotplug()
1285 		acpi_processor_setup_cpuidle_dev(pr, dev);  in acpi_processor_hotplug()
1293 int acpi_processor_power_state_has_changed(struct acpi_processor *pr)  in acpi_processor_power_state_has_changed()  argument
1302 	if (!pr->flags.power_setup_done)  in acpi_processor_power_state_has_changed()
1311 	if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {  in acpi_processor_power_state_has_changed()
1327 		acpi_processor_get_power_info(pr);  in acpi_processor_power_state_has_changed()
1328 		acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_power_state_has_changed()
1351 int acpi_processor_power_init(struct acpi_processor *pr)  in acpi_processor_power_init()  argument
1361 	if (!acpi_processor_get_power_info(pr))  in acpi_processor_power_init()
1362 		pr->flags.power_setup_done = 1;  in acpi_processor_power_init()
1369 	if (pr->flags.power) {  in acpi_processor_power_init()
1372 			acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_power_init()
1383 		per_cpu(acpi_cpuidle_device, pr->id) = dev;  in acpi_processor_power_init()
1385 		acpi_processor_setup_cpuidle_dev(pr, dev);  in acpi_processor_power_init()
1401 int acpi_processor_power_exit(struct acpi_processor *pr)  in acpi_processor_power_exit()  argument
1403 	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_power_exit()
1408 	if (pr->flags.power) {  in acpi_processor_power_exit()
1415 	pr->flags.power_setup_done = 0;  in acpi_processor_power_exit()