56 	struct acpi_processor *pr;  member
64 static int acpi_processor_get_throttling(struct acpi_processor *pr);
65 static int __acpi_processor_set_throttling(struct acpi_processor *pr,
74 	struct acpi_processor *pr, *match_pr;  in acpi_processor_update_tsd_coord()  local
86 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
87 		if (!pr)  in acpi_processor_update_tsd_coord()
91 		pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
107 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
108 		if (!pr)  in acpi_processor_update_tsd_coord()
113 		pthrottling = &pr->throttling;  in acpi_processor_update_tsd_coord()
188 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
189 		if (!pr)  in acpi_processor_update_tsd_coord()
197 			pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
224 	struct acpi_processor *pr;  in acpi_processor_throttling_notifier()  local
231 	pr = per_cpu(processors, cpu);  in acpi_processor_throttling_notifier()
232 	if (!pr) {  in acpi_processor_throttling_notifier()
236 	if (!pr->flags.throttling) {  in acpi_processor_throttling_notifier()
242 	p_throttling = &(pr->throttling);  in acpi_processor_throttling_notifier()
249 		p_limit = &pr->limit;  in acpi_processor_throttling_notifier()
254 		if (pr->throttling_platform_limit > target_state)  in acpi_processor_throttling_notifier()
255 			target_state = pr->throttling_platform_limit;  in acpi_processor_throttling_notifier()
288 static int acpi_processor_get_platform_limit(struct acpi_processor *pr)  in acpi_processor_get_platform_limit()  argument
293 	if (!pr)  in acpi_processor_get_platform_limit()
299 	status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);  in acpi_processor_get_platform_limit()
308 	pr->throttling_platform_limit = (int)tpc;  in acpi_processor_get_platform_limit()
312 int acpi_processor_tstate_has_changed(struct acpi_processor *pr)  in acpi_processor_tstate_has_changed()  argument
323 	result = acpi_processor_get_platform_limit(pr);  in acpi_processor_tstate_has_changed()
329 	throttling_limit = pr->throttling_platform_limit;  in acpi_processor_tstate_has_changed()
330 	if (throttling_limit >= pr->throttling.state_count) {  in acpi_processor_tstate_has_changed()
335 	current_state = pr->throttling.state;  in acpi_processor_tstate_has_changed()
344 		limit = &pr->limit;  in acpi_processor_tstate_has_changed()
365 	return acpi_processor_set_throttling(pr, target_state, false);  in acpi_processor_tstate_has_changed()
377 void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,  in acpi_processor_reevaluate_tstate()  argument
386 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
392 	if (!pr->throttling.state_count) {  in acpi_processor_reevaluate_tstate()
396 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
399 	pr->flags.throttling = 1;  in acpi_processor_reevaluate_tstate()
406 	result = acpi_processor_get_throttling(pr);  in acpi_processor_reevaluate_tstate()
410 	if (pr->throttling.state) {  in acpi_processor_reevaluate_tstate()
411 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_reevaluate_tstate()
418 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
423 static int acpi_processor_get_throttling_control(struct acpi_processor *pr)  in acpi_processor_get_throttling_control()  argument
432 	status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);  in acpi_processor_get_throttling_control()
462 	memcpy(&pr->throttling.control_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
479 	memcpy(&pr->throttling.status_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
482 	throttling = &pr->throttling;  in acpi_processor_get_throttling_control()
507 static int acpi_processor_get_throttling_states(struct acpi_processor *pr)  in acpi_processor_get_throttling_states()  argument
517 	status = acpi_evaluate_object(pr->handle, "_TSS", NULL, &buffer);  in acpi_processor_get_throttling_states()
535 	pr->throttling.state_count = tss->package.count;  in acpi_processor_get_throttling_states()
536 	pr->throttling.states_tss =  in acpi_processor_get_throttling_states()
540 	if (!pr->throttling.states_tss) {  in acpi_processor_get_throttling_states()
545 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_throttling_states()
548 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_processor_get_throttling_states()
561 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
569 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
583 static int acpi_processor_get_tsd(struct acpi_processor *pr)  in acpi_processor_get_tsd()  argument
594 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
597 	status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);  in acpi_processor_get_tsd()
618 	pdomain = &(pr->throttling.domain_info);  in acpi_processor_get_tsd()
643 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
646 	cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_tsd()
667 static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)  in acpi_processor_get_throttling_fadt()  argument
674 	if (!pr)  in acpi_processor_get_throttling_fadt()
677 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_fadt()
687 	request_region(pr->throttling.address, 6, "ACPI CPU throttle");  in acpi_processor_get_throttling_fadt()
689 	pr->throttling.state = 0;  in acpi_processor_get_throttling_fadt()
691 	duty_mask = pr->throttling.state_count - 1;  in acpi_processor_get_throttling_fadt()
693 	duty_mask <<= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
697 	value = inl(pr->throttling.address);  in acpi_processor_get_throttling_fadt()
705 		duty_value >>= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
708 			state = pr->throttling.state_count - duty_value;  in acpi_processor_get_throttling_fadt()
711 	pr->throttling.state = state;  in acpi_processor_get_throttling_fadt()
717 			  state, pr->throttling.states[state].performance));  in acpi_processor_get_throttling_fadt()
778 static int acpi_read_throttling_status(struct acpi_processor *pr,  in acpi_read_throttling_status()  argument
787 	throttling = &pr->throttling;  in acpi_read_throttling_status()
810 static int acpi_write_throttling_state(struct acpi_processor *pr,  in acpi_write_throttling_state()  argument
819 	throttling = &pr->throttling;  in acpi_write_throttling_state()
843 static int acpi_get_throttling_state(struct acpi_processor *pr,  in acpi_get_throttling_state()  argument
848 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_get_throttling_state()
850 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_state()
858 static int acpi_get_throttling_value(struct acpi_processor *pr,  in acpi_get_throttling_value()  argument
863 	if (state >= 0 && state <= pr->throttling.state_count) {  in acpi_get_throttling_value()
865 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_value()
873 static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)  in acpi_processor_get_throttling_ptc()  argument
879 	if (!pr)  in acpi_processor_get_throttling_ptc()
882 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_ptc()
885 	pr->throttling.state = 0;  in acpi_processor_get_throttling_ptc()
888 	ret = acpi_read_throttling_status(pr, &value);  in acpi_processor_get_throttling_ptc()
890 		state = acpi_get_throttling_state(pr, value);  in acpi_processor_get_throttling_ptc()
895 			ret = __acpi_processor_set_throttling(pr, state, true,  in acpi_processor_get_throttling_ptc()
900 		pr->throttling.state = state;  in acpi_processor_get_throttling_ptc()
908 	struct acpi_processor *pr = data;  in __acpi_processor_get_throttling()  local
910 	return pr->throttling.acpi_processor_get_throttling(pr);  in __acpi_processor_get_throttling()
920 static int acpi_processor_get_throttling(struct acpi_processor *pr)  in acpi_processor_get_throttling()  argument
922 	if (!pr)  in acpi_processor_get_throttling()
925 	if (!pr->flags.throttling)  in acpi_processor_get_throttling()
934 	if (!cpu_online(pr->id))  in acpi_processor_get_throttling()
937 	return call_on_cpu(pr->id, __acpi_processor_get_throttling, pr, false);  in acpi_processor_get_throttling()
940 static int acpi_processor_get_fadt_info(struct acpi_processor *pr)  in acpi_processor_get_fadt_info()  argument
944 	if (!pr->throttling.address) {  in acpi_processor_get_fadt_info()
947 	} else if (!pr->throttling.duty_width) {  in acpi_processor_get_fadt_info()
952 	else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {  in acpi_processor_get_fadt_info()
957 	pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;  in acpi_processor_get_fadt_info()
965 	step = (1000 / pr->throttling.state_count);  in acpi_processor_get_fadt_info()
967 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_fadt_info()
968 		pr->throttling.states[i].performance = 1000 - step * i;  in acpi_processor_get_fadt_info()
969 		pr->throttling.states[i].power = 1000 - step * i;  in acpi_processor_get_fadt_info()
974 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,  in acpi_processor_set_throttling_fadt()  argument
981 	if (!pr)  in acpi_processor_set_throttling_fadt()
984 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_fadt()
987 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_fadt()
990 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_fadt()
993 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_fadt()
999 		duty_value = pr->throttling.state_count - state;  in acpi_processor_set_throttling_fadt()
1001 		duty_value <<= pr->throttling.duty_offset;  in acpi_processor_set_throttling_fadt()
1004 		duty_mask = pr->throttling.state_count - 1;  in acpi_processor_set_throttling_fadt()
1016 	value = inl(pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1019 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1029 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1032 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1035 	pr->throttling.state = state;  in acpi_processor_set_throttling_fadt()
1041 			  (pr->throttling.states[state].performance ? pr->  in acpi_processor_set_throttling_fadt()
1047 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,  in acpi_processor_set_throttling_ptc()  argument
1053 	if (!pr)  in acpi_processor_set_throttling_ptc()
1056 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_ptc()
1059 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_ptc()
1062 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_ptc()
1065 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_ptc()
1069 	ret = acpi_get_throttling_value(pr, state, &value);  in acpi_processor_set_throttling_ptc()
1071 		acpi_write_throttling_state(pr, value);  in acpi_processor_set_throttling_ptc()
1072 		pr->throttling.state = state;  in acpi_processor_set_throttling_ptc()
1081 	struct acpi_processor *pr = arg->pr;  in acpi_processor_throttling_fn()  local
1083 	return pr->throttling.acpi_processor_set_throttling(pr,  in acpi_processor_throttling_fn()
1087 static int __acpi_processor_set_throttling(struct acpi_processor *pr,  in __acpi_processor_set_throttling()  argument
1097 	if (!pr)  in __acpi_processor_set_throttling()
1100 	if (!pr->flags.throttling)  in __acpi_processor_set_throttling()
1103 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in __acpi_processor_set_throttling()
1106 	if (cpu_is_offline(pr->id)) {  in __acpi_processor_set_throttling()
1115 	p_throttling = &(pr->throttling);  in __acpi_processor_set_throttling()
1134 		arg.pr = pr;  in __acpi_processor_set_throttling()
1137 		ret = call_on_cpu(pr->id, acpi_processor_throttling_fn, &arg,  in __acpi_processor_set_throttling()
1168 			arg.pr = match_pr;  in __acpi_processor_set_throttling()
1171 			ret = call_on_cpu(pr->id, acpi_processor_throttling_fn,  in __acpi_processor_set_throttling()
1190 int acpi_processor_set_throttling(struct acpi_processor *pr, int state,  in acpi_processor_set_throttling()  argument
1193 	return __acpi_processor_set_throttling(pr, state, force, false);  in acpi_processor_set_throttling()
1196 int acpi_processor_get_throttling_info(struct acpi_processor *pr)  in acpi_processor_get_throttling_info()  argument
1203 			  pr->throttling.address,  in acpi_processor_get_throttling_info()
1204 			  pr->throttling.duty_offset,  in acpi_processor_get_throttling_info()
1205 			  pr->throttling.duty_width));  in acpi_processor_get_throttling_info()
1211 	if (acpi_processor_get_throttling_control(pr) ||  in acpi_processor_get_throttling_info()
1212 		acpi_processor_get_throttling_states(pr) ||  in acpi_processor_get_throttling_info()
1213 		acpi_processor_get_platform_limit(pr))  in acpi_processor_get_throttling_info()
1215 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1217 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1219 		if (acpi_processor_get_fadt_info(pr))  in acpi_processor_get_throttling_info()
1222 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1224 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1232 	if (acpi_processor_get_tsd(pr)) {  in acpi_processor_get_throttling_info()
1233 		pthrottling = &pr->throttling;  in acpi_processor_get_throttling_info()
1235 		cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_throttling_info()
1251 			  pr->throttling.state_count));  in acpi_processor_get_throttling_info()
1253 	pr->flags.throttling = 1;  in acpi_processor_get_throttling_info()
1261 	result = acpi_processor_get_throttling(pr);  in acpi_processor_get_throttling_info()
1265 	if (pr->throttling.state) {  in acpi_processor_get_throttling_info()
1268 				  pr->throttling.state));  in acpi_processor_get_throttling_info()
1269 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_get_throttling_info()
1276 		pr->flags.throttling = 0;  in acpi_processor_get_throttling_info()