134 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
137 	struct acpi_processor_power *pwr = &pr->power;  in lapic_timer_check_state()
140 	if (cpu_has(&cpu_data(pr->id), X86_FEATURE_ARAT))  in lapic_timer_check_state()
154 		pr->power.timer_broadcast_on_state = state;  in lapic_timer_check_state()
159 	struct acpi_processor *pr = (struct acpi_processor *) arg;  in __lapic_timer_propagate_broadcast()  local
161 	if (pr->power.timer_broadcast_on_state < INT_MAX)  in __lapic_timer_propagate_broadcast()
167 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)  in lapic_timer_propagate_broadcast()  argument
169 	smp_call_function_single(pr->id, __lapic_timer_propagate_broadcast,  in lapic_timer_propagate_broadcast()
170 				 (void *)pr, 1);  in lapic_timer_propagate_broadcast()
174 static void lapic_timer_state_broadcast(struct acpi_processor *pr,  in lapic_timer_state_broadcast()  argument
178 	int state = cx - pr->power.states;  in lapic_timer_state_broadcast()
180 	if (state >= pr->power.timer_broadcast_on_state) {  in lapic_timer_state_broadcast()
190 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
192 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) { }  in lapic_timer_propagate_broadcast()  argument
193 static void lapic_timer_state_broadcast(struct acpi_processor *pr,  in lapic_timer_state_broadcast()  argument
261 static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)  in acpi_processor_get_power_info_fadt()  argument
264 	if (!pr->pblk)  in acpi_processor_get_power_info_fadt()
268 	pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2;  in acpi_processor_get_power_info_fadt()
269 	pr->power.states[ACPI_STATE_C3].type = ACPI_STATE_C3;  in acpi_processor_get_power_info_fadt()
282 	pr->power.states[ACPI_STATE_C2].address = pr->pblk + 4;  in acpi_processor_get_power_info_fadt()
283 	pr->power.states[ACPI_STATE_C3].address = pr->pblk + 5;  in acpi_processor_get_power_info_fadt()
286 	pr->power.states[ACPI_STATE_C2].latency = acpi_gbl_FADT.c2_latency;  in acpi_processor_get_power_info_fadt()
287 	pr->power.states[ACPI_STATE_C3].latency = acpi_gbl_FADT.c3_latency;  in acpi_processor_get_power_info_fadt()
297 		pr->power.states[ACPI_STATE_C2].address = 0;  in acpi_processor_get_power_info_fadt()
308 		pr->power.states[ACPI_STATE_C3].address = 0;  in acpi_processor_get_power_info_fadt()
313 			  pr->power.states[ACPI_STATE_C2].address,  in acpi_processor_get_power_info_fadt()
314 			  pr->power.states[ACPI_STATE_C3].address));  in acpi_processor_get_power_info_fadt()
319 static int acpi_processor_get_power_info_default(struct acpi_processor *pr)  in acpi_processor_get_power_info_default()  argument
321 	if (!pr->power.states[ACPI_STATE_C1].valid) {  in acpi_processor_get_power_info_default()
324 		pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;  in acpi_processor_get_power_info_default()
325 		pr->power.states[ACPI_STATE_C1].valid = 1;  in acpi_processor_get_power_info_default()
326 		pr->power.states[ACPI_STATE_C1].entry_method = ACPI_CSTATE_HALT;  in acpi_processor_get_power_info_default()
329 	pr->power.states[ACPI_STATE_C0].valid = 1;  in acpi_processor_get_power_info_default()
333 static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)  in acpi_processor_get_power_info_cst()  argument
348 	status = acpi_evaluate_object(pr->handle, "_CST", NULL, &buffer);  in acpi_processor_get_power_info_cst()
373 	pr->flags.has_cst = 1;  in acpi_processor_get_power_info_cst()
420 					(pr->id, &cx, reg) == 0) {  in acpi_processor_get_power_info_cst()
469 		memcpy(&(pr->power.states[current_count]), &cx, sizeof(cx));  in acpi_processor_get_power_info_cst()
498 static void acpi_processor_power_verify_c3(struct acpi_processor *pr,  in acpi_processor_power_verify_c3()  argument
524 		acpi_processor_power_init_bm_check(&(pr->flags), pr->id);  in acpi_processor_power_verify_c3()
525 		bm_check_flag = pr->flags.bm_check;  in acpi_processor_power_verify_c3()
526 		bm_control_flag = pr->flags.bm_control;  in acpi_processor_power_verify_c3()
528 		pr->flags.bm_check = bm_check_flag;  in acpi_processor_power_verify_c3()
529 		pr->flags.bm_control = bm_control_flag;  in acpi_processor_power_verify_c3()
532 	if (pr->flags.bm_check) {  in acpi_processor_power_verify_c3()
533 		if (!pr->flags.bm_control) {  in acpi_processor_power_verify_c3()
534 			if (pr->flags.has_cst != 1) {  in acpi_processor_power_verify_c3()
579 static int acpi_processor_power_verify(struct acpi_processor *pr)  in acpi_processor_power_verify()  argument
584 	pr->power.timer_broadcast_on_state = INT_MAX;  in acpi_processor_power_verify()
587 		struct acpi_processor_cx *cx = &pr->power.states[i];  in acpi_processor_power_verify()
601 			acpi_processor_power_verify_c3(pr, cx);  in acpi_processor_power_verify()
607 		lapic_timer_check_state(i, pr, cx);  in acpi_processor_power_verify()
612 	lapic_timer_propagate_broadcast(pr);  in acpi_processor_power_verify()
617 static int acpi_processor_get_power_info(struct acpi_processor *pr)  in acpi_processor_get_power_info()  argument
627 	memset(pr->power.states, 0, sizeof(pr->power.states));  in acpi_processor_get_power_info()
629 	result = acpi_processor_get_power_info_cst(pr);  in acpi_processor_get_power_info()
631 		result = acpi_processor_get_power_info_fadt(pr);  in acpi_processor_get_power_info()
636 	acpi_processor_get_power_info_default(pr);  in acpi_processor_get_power_info()
638 	pr->power.count = acpi_processor_power_verify(pr);  in acpi_processor_get_power_info()
645 		if (pr->power.states[i].valid) {  in acpi_processor_get_power_info()
646 			pr->power.count = i;  in acpi_processor_get_power_info()
647 			if (pr->power.states[i].type >= ACPI_STATE_C2)  in acpi_processor_get_power_info()
648 				pr->flags.power = 1;  in acpi_processor_get_power_info()
731 static bool acpi_idle_fallback_to_c1(struct acpi_processor *pr)  in acpi_idle_fallback_to_c1()  argument
733 	return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst &&  in acpi_idle_fallback_to_c1()
746 static void acpi_idle_enter_bm(struct acpi_processor *pr,  in acpi_idle_enter_bm()  argument
756 		lapic_timer_state_broadcast(pr, cx, 1);  in acpi_idle_enter_bm()
767 	if (pr->flags.bm_control) {  in acpi_idle_enter_bm()
779 	if (pr->flags.bm_control) {  in acpi_idle_enter_bm()
787 		lapic_timer_state_broadcast(pr, cx, 0);  in acpi_idle_enter_bm()
794 	struct acpi_processor *pr;  in acpi_idle_enter()  local
796 	pr = __this_cpu_read(processors);  in acpi_idle_enter()
797 	if (unlikely(!pr))  in acpi_idle_enter()
801 		if (acpi_idle_fallback_to_c1(pr) && num_online_cpus() > 1) {  in acpi_idle_enter()
804 		} else if (cx->type == ACPI_STATE_C3 && pr->flags.bm_check) {  in acpi_idle_enter()
806 				acpi_idle_enter_bm(pr, cx, true);  in acpi_idle_enter()
818 	lapic_timer_state_broadcast(pr, cx, 1);  in acpi_idle_enter()
825 	lapic_timer_state_broadcast(pr, cx, 0);  in acpi_idle_enter()
836 		struct acpi_processor *pr = __this_cpu_read(processors);  in acpi_idle_enter_freeze()  local
838 		if (unlikely(!pr))  in acpi_idle_enter_freeze()
841 		if (pr->flags.bm_check) {  in acpi_idle_enter_freeze()
842 			acpi_idle_enter_bm(pr, cx, false);  in acpi_idle_enter_freeze()
863 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_cx()  argument
869 	if (!pr->flags.power_setup_done)  in acpi_processor_setup_cpuidle_cx()
872 	if (pr->flags.power == 0) {  in acpi_processor_setup_cpuidle_cx()
879 	dev->cpu = pr->id;  in acpi_processor_setup_cpuidle_cx()
885 		cx = &pr->power.states[i];  in acpi_processor_setup_cpuidle_cx()
909 static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)  in acpi_processor_setup_cpuidle_states()  argument
916 	if (!pr->flags.power_setup_done)  in acpi_processor_setup_cpuidle_states()
919 	if (pr->flags.power == 0)  in acpi_processor_setup_cpuidle_states()
932 		cx = &pr->power.states[i];  in acpi_processor_setup_cpuidle_states()
956 		if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))  in acpi_processor_setup_cpuidle_states()
972 int acpi_processor_hotplug(struct acpi_processor *pr)  in acpi_processor_hotplug()  argument
983 	if (!pr->flags.power_setup_done)  in acpi_processor_hotplug()
986 	dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_hotplug()
989 	acpi_processor_get_power_info(pr);  in acpi_processor_hotplug()
990 	if (pr->flags.power) {  in acpi_processor_hotplug()
991 		acpi_processor_setup_cpuidle_cx(pr, dev);  in acpi_processor_hotplug()
999 int acpi_processor_cst_has_changed(struct acpi_processor *pr)  in acpi_processor_cst_has_changed()  argument
1011 	if (!pr->flags.power_setup_done)  in acpi_processor_cst_has_changed()
1020 	if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {  in acpi_processor_cst_has_changed()
1036 		acpi_processor_get_power_info(pr);  in acpi_processor_cst_has_changed()
1037 		acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_cst_has_changed()
1060 int acpi_processor_power_init(struct acpi_processor *pr)  in acpi_processor_power_init()  argument
1089 	acpi_processor_get_power_info(pr);  in acpi_processor_power_init()
1090 	pr->flags.power_setup_done = 1;  in acpi_processor_power_init()
1097 	if (pr->flags.power) {  in acpi_processor_power_init()
1100 			acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_power_init()
1111 		per_cpu(acpi_cpuidle_device, pr->id) = dev;  in acpi_processor_power_init()
1113 		acpi_processor_setup_cpuidle_cx(pr, dev);  in acpi_processor_power_init()
1129 int acpi_processor_power_exit(struct acpi_processor *pr)  in acpi_processor_power_exit()  argument
1131 	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_power_exit()
1136 	if (pr->flags.power) {  in acpi_processor_power_exit()
1143 	pr->flags.power_setup_done = 0;  in acpi_processor_power_exit()