124 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
127 	struct acpi_processor_power *pwr = &pr->power;  in lapic_timer_check_state()
130 	if (cpu_has(&cpu_data(pr->id), X86_FEATURE_ARAT))  in lapic_timer_check_state()
144 		pr->power.timer_broadcast_on_state = state;  in lapic_timer_check_state()
149 	struct acpi_processor *pr = arg;  in __lapic_timer_propagate_broadcast()  local
151 	if (pr->power.timer_broadcast_on_state < INT_MAX)  in __lapic_timer_propagate_broadcast()
157 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)  in lapic_timer_propagate_broadcast()  argument
159 	smp_call_function_single(pr->id, __lapic_timer_propagate_broadcast,  in lapic_timer_propagate_broadcast()
160 				 (void *)pr, 1);  in lapic_timer_propagate_broadcast()
164 static bool lapic_timer_needs_broadcast(struct acpi_processor *pr,  in lapic_timer_needs_broadcast()  argument
167 	return cx - pr->power.states >= pr->power.timer_broadcast_on_state;  in lapic_timer_needs_broadcast()
172 static void lapic_timer_check_state(int state, struct acpi_processor *pr,  in lapic_timer_check_state()  argument
174 static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) { }  in lapic_timer_propagate_broadcast()  argument
176 static bool lapic_timer_needs_broadcast(struct acpi_processor *pr,  in lapic_timer_needs_broadcast()  argument
210 static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)  in acpi_processor_get_power_info_fadt()  argument
213 	if (!pr->pblk)  in acpi_processor_get_power_info_fadt()
217 	pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2;  in acpi_processor_get_power_info_fadt()
218 	pr->power.states[ACPI_STATE_C3].type = ACPI_STATE_C3;  in acpi_processor_get_power_info_fadt()
231 	pr->power.states[ACPI_STATE_C2].address = pr->pblk + 4;  in acpi_processor_get_power_info_fadt()
232 	pr->power.states[ACPI_STATE_C3].address = pr->pblk + 5;  in acpi_processor_get_power_info_fadt()
235 	pr->power.states[ACPI_STATE_C2].latency = acpi_gbl_FADT.c2_latency;  in acpi_processor_get_power_info_fadt()
236 	pr->power.states[ACPI_STATE_C3].latency = acpi_gbl_FADT.c3_latency;  in acpi_processor_get_power_info_fadt()
243 		acpi_handle_debug(pr->handle, "C2 latency too large [%d]\n",  in acpi_processor_get_power_info_fadt()
246 		pr->power.states[ACPI_STATE_C2].address = 0;  in acpi_processor_get_power_info_fadt()
254 		acpi_handle_debug(pr->handle, "C3 latency too large [%d]\n",  in acpi_processor_get_power_info_fadt()
257 		pr->power.states[ACPI_STATE_C3].address = 0;  in acpi_processor_get_power_info_fadt()
260 	acpi_handle_debug(pr->handle, "lvl2[0x%08x] lvl3[0x%08x]\n",  in acpi_processor_get_power_info_fadt()
261 			  pr->power.states[ACPI_STATE_C2].address,  in acpi_processor_get_power_info_fadt()
262 			  pr->power.states[ACPI_STATE_C3].address);  in acpi_processor_get_power_info_fadt()
264 	snprintf(pr->power.states[ACPI_STATE_C2].desc,  in acpi_processor_get_power_info_fadt()
266 			 pr->power.states[ACPI_STATE_C2].address);  in acpi_processor_get_power_info_fadt()
267 	snprintf(pr->power.states[ACPI_STATE_C3].desc,  in acpi_processor_get_power_info_fadt()
269 			 pr->power.states[ACPI_STATE_C3].address);  in acpi_processor_get_power_info_fadt()
271 	if (!pr->power.states[ACPI_STATE_C2].address &&  in acpi_processor_get_power_info_fadt()
272 	    !pr->power.states[ACPI_STATE_C3].address)  in acpi_processor_get_power_info_fadt()
278 static int acpi_processor_get_power_info_default(struct acpi_processor *pr)  in acpi_processor_get_power_info_default()  argument
280 	if (!pr->power.states[ACPI_STATE_C1].valid) {  in acpi_processor_get_power_info_default()
283 		pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;  in acpi_processor_get_power_info_default()
284 		pr->power.states[ACPI_STATE_C1].valid = 1;  in acpi_processor_get_power_info_default()
285 		pr->power.states[ACPI_STATE_C1].entry_method = ACPI_CSTATE_HALT;  in acpi_processor_get_power_info_default()
287 		snprintf(pr->power.states[ACPI_STATE_C1].desc,  in acpi_processor_get_power_info_default()
291 	pr->power.states[ACPI_STATE_C0].valid = 1;  in acpi_processor_get_power_info_default()
295 static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)  in acpi_processor_get_power_info_cst()  argument
302 	ret = acpi_processor_evaluate_cst(pr->handle, pr->id, &pr->power);  in acpi_processor_get_power_info_cst()
306 	if (!pr->power.count)  in acpi_processor_get_power_info_cst()
309 	pr->flags.has_cst = 1;  in acpi_processor_get_power_info_cst()
313 static void acpi_processor_power_verify_c3(struct acpi_processor *pr,  in acpi_processor_power_verify_c3()  argument
331 		acpi_handle_debug(pr->handle,  in acpi_processor_power_verify_c3()
339 		acpi_processor_power_init_bm_check(&(pr->flags), pr->id);  in acpi_processor_power_verify_c3()
340 		bm_check_flag = pr->flags.bm_check;  in acpi_processor_power_verify_c3()
341 		bm_control_flag = pr->flags.bm_control;  in acpi_processor_power_verify_c3()
343 		pr->flags.bm_check = bm_check_flag;  in acpi_processor_power_verify_c3()
344 		pr->flags.bm_control = bm_control_flag;  in acpi_processor_power_verify_c3()
347 	if (pr->flags.bm_check) {  in acpi_processor_power_verify_c3()
348 		if (!pr->flags.bm_control) {  in acpi_processor_power_verify_c3()
349 			if (pr->flags.has_cst != 1) {  in acpi_processor_power_verify_c3()
351 				acpi_handle_debug(pr->handle,  in acpi_processor_power_verify_c3()
356 				acpi_handle_debug(pr->handle,  in acpi_processor_power_verify_c3()
366 			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 		acpi_cst_latency_sort(&pr->power.states[1], max_cstate);  in acpi_processor_power_verify()
457 	lapic_timer_propagate_broadcast(pr);  in acpi_processor_power_verify()
462 static int acpi_processor_get_cstate_info(struct acpi_processor *pr)  in acpi_processor_get_cstate_info()  argument
472 	memset(pr->power.states, 0, sizeof(pr->power.states));  in acpi_processor_get_cstate_info()
474 	result = acpi_processor_get_power_info_cst(pr);  in acpi_processor_get_cstate_info()
476 		result = acpi_processor_get_power_info_fadt(pr);  in acpi_processor_get_cstate_info()
481 	acpi_processor_get_power_info_default(pr);  in acpi_processor_get_cstate_info()
483 	pr->power.count = acpi_processor_power_verify(pr);  in acpi_processor_get_cstate_info()
490 		if (pr->power.states[i].valid) {  in acpi_processor_get_cstate_info()
491 			pr->power.count = i;  in acpi_processor_get_cstate_info()
492 			pr->flags.power = 1;  in acpi_processor_get_cstate_info()
602 static __always_inline bool acpi_idle_fallback_to_c1(struct acpi_processor *pr)  in acpi_idle_fallback_to_c1()  argument
604 	return IS_ENABLED(CONFIG_HOTPLUG_CPU) && !pr->flags.has_cst &&  in acpi_idle_fallback_to_c1()
614  * @pr: Target processor
619 			       struct acpi_processor *pr,  in acpi_idle_enter_bm()  argument
635 	bool dis_bm = pr->flags.bm_control;  in acpi_idle_enter_bm()
683 	struct acpi_processor *pr;  in acpi_idle_enter()  local
685 	pr = __this_cpu_read(processors);  in acpi_idle_enter()
686 	if (unlikely(!pr))  in acpi_idle_enter()
690 		if (cx->type == ACPI_STATE_C3 && pr->flags.bm_check)  in acpi_idle_enter()
691 			return acpi_idle_enter_bm(drv, pr, cx, index);  in acpi_idle_enter()
694 		if (acpi_idle_fallback_to_c1(pr) && num_online_cpus() > 1) {  in acpi_idle_enter()
714 		struct acpi_processor *pr = __this_cpu_read(processors);  in acpi_idle_enter_s2idle()  local
716 		if (unlikely(!pr))  in acpi_idle_enter_s2idle()
719 		if (pr->flags.bm_check) {  in acpi_idle_enter_s2idle()
724 			acpi_idle_enter_bm(drv, pr, cx, index);  in acpi_idle_enter_s2idle()
737 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_cx()  argument
749 		cx = &pr->power.states[i];  in acpi_processor_setup_cpuidle_cx()
756 		if (lapic_timer_needs_broadcast(pr, cx))  in acpi_processor_setup_cpuidle_cx()
761 			if (pr->flags.bm_check)  in acpi_processor_setup_cpuidle_cx()
776 static int acpi_processor_setup_cstates(struct acpi_processor *pr)  in acpi_processor_setup_cstates()  argument
794 		cx = &pr->power.states[i];  in acpi_processor_setup_cstates()
820 		if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))  in acpi_processor_setup_cstates()
858 static int acpi_processor_get_cstate_info(struct acpi_processor *pr)  in acpi_processor_get_cstate_info()  argument
863 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_cx()  argument
869 static int acpi_processor_setup_cstates(struct acpi_processor *pr)  in acpi_processor_setup_cstates()  argument
1050 static int flatten_lpi_states(struct acpi_processor *pr,  in flatten_lpi_states()  argument
1071 		flpi = &pr->power.lpi_states[flat_state_cnt];  in flatten_lpi_states()
1100 static int acpi_processor_get_lpi_info(struct acpi_processor *pr)  in acpi_processor_get_lpi_info()  argument
1104 	acpi_handle handle = pr->handle, pr_ahandle;  in acpi_processor_get_lpi_info()
1109 	ret = acpi_processor_ffh_lpi_probe(pr->id);  in acpi_processor_get_lpi_info()
1122 	handle = pr->handle;  in acpi_processor_get_lpi_info()
1126 	flatten_lpi_states(pr, prev, NULL);  in acpi_processor_get_lpi_info()
1148 		flatten_lpi_states(pr, curr, prev);  in acpi_processor_get_lpi_info()
1155 	pr->power.count = flat_state_cnt;  in acpi_processor_get_lpi_info()
1157 	for (i = 0; i < pr->power.count; i++)  in acpi_processor_get_lpi_info()
1158 		pr->power.lpi_states[i].index = i;  in acpi_processor_get_lpi_info()
1161 	pr->flags.has_lpi = 1;  in acpi_processor_get_lpi_info()
1162 	pr->flags.power = 1;  in acpi_processor_get_lpi_info()
1183 	struct acpi_processor *pr;  in acpi_idle_lpi_enter()  local
1186 	pr = __this_cpu_read(processors);  in acpi_idle_lpi_enter()
1188 	if (unlikely(!pr))  in acpi_idle_lpi_enter()
1191 	lpi = &pr->power.lpi_states[index];  in acpi_idle_lpi_enter()
1198 static int acpi_processor_setup_lpi_states(struct acpi_processor *pr)  in acpi_processor_setup_lpi_states()  argument
1205 	if (!pr->flags.has_lpi)  in acpi_processor_setup_lpi_states()
1208 	for (i = 0; i < pr->power.count && i < CPUIDLE_STATE_MAX; i++) {  in acpi_processor_setup_lpi_states()
1209 		lpi = &pr->power.lpi_states[i];  in acpi_processor_setup_lpi_states()
1232  * @pr: the ACPI processor
1234 static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)  in acpi_processor_setup_cpuidle_states()  argument
1239 	if (!pr->flags.power_setup_done || !pr->flags.power)  in acpi_processor_setup_cpuidle_states()
1248 	if (pr->flags.has_lpi)  in acpi_processor_setup_cpuidle_states()
1249 		return acpi_processor_setup_lpi_states(pr);  in acpi_processor_setup_cpuidle_states()
1251 	return acpi_processor_setup_cstates(pr);  in acpi_processor_setup_cpuidle_states()
1258  * @pr: the ACPI processor
1261 static int acpi_processor_setup_cpuidle_dev(struct acpi_processor *pr,  in acpi_processor_setup_cpuidle_dev()  argument
1264 	if (!pr->flags.power_setup_done || !pr->flags.power || !dev)  in acpi_processor_setup_cpuidle_dev()
1267 	dev->cpu = pr->id;  in acpi_processor_setup_cpuidle_dev()
1268 	if (pr->flags.has_lpi)  in acpi_processor_setup_cpuidle_dev()
1269 		return acpi_processor_ffh_lpi_probe(pr->id);  in acpi_processor_setup_cpuidle_dev()
1271 	return acpi_processor_setup_cpuidle_cx(pr, dev);  in acpi_processor_setup_cpuidle_dev()
1274 static int acpi_processor_get_power_info(struct acpi_processor *pr)  in acpi_processor_get_power_info()  argument
1278 	ret = acpi_processor_get_lpi_info(pr);  in acpi_processor_get_power_info()
1280 		ret = acpi_processor_get_cstate_info(pr);  in acpi_processor_get_power_info()
1285 int acpi_processor_hotplug(struct acpi_processor *pr)  in acpi_processor_hotplug()  argument
1293 	if (!pr->flags.power_setup_done)  in acpi_processor_hotplug()
1296 	dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_hotplug()
1299 	ret = acpi_processor_get_power_info(pr);  in acpi_processor_hotplug()
1300 	if (!ret && pr->flags.power) {  in acpi_processor_hotplug()
1301 		acpi_processor_setup_cpuidle_dev(pr, dev);  in acpi_processor_hotplug()
1309 int acpi_processor_power_state_has_changed(struct acpi_processor *pr)  in acpi_processor_power_state_has_changed()  argument
1318 	if (!pr->flags.power_setup_done)  in acpi_processor_power_state_has_changed()
1327 	if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {  in acpi_processor_power_state_has_changed()
1343 		acpi_processor_get_power_info(pr);  in acpi_processor_power_state_has_changed()
1344 		acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_power_state_has_changed()
1367 int acpi_processor_power_init(struct acpi_processor *pr)  in acpi_processor_power_init()  argument
1377 	if (!acpi_processor_get_power_info(pr))  in acpi_processor_power_init()
1378 		pr->flags.power_setup_done = 1;  in acpi_processor_power_init()
1385 	if (pr->flags.power) {  in acpi_processor_power_init()
1388 			acpi_processor_setup_cpuidle_states(pr);  in acpi_processor_power_init()
1399 		per_cpu(acpi_cpuidle_device, pr->id) = dev;  in acpi_processor_power_init()
1401 		acpi_processor_setup_cpuidle_dev(pr, dev);  in acpi_processor_power_init()
1417 int acpi_processor_power_exit(struct acpi_processor *pr)  in acpi_processor_power_exit()  argument
1419 	struct cpuidle_device *dev = per_cpu(acpi_cpuidle_device, pr->id);  in acpi_processor_power_exit()
1424 	if (pr->flags.power) {  in acpi_processor_power_exit()
1433 	pr->flags.power_setup_done = 0;  in acpi_processor_power_exit()