43 	struct acpi_processor *pr;  member
51 static int acpi_processor_get_throttling(struct acpi_processor *pr);
52 static int __acpi_processor_set_throttling(struct acpi_processor *pr,
61 	struct acpi_processor *pr, *match_pr;  in acpi_processor_update_tsd_coord()  local
73 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
74 		if (!pr)  in acpi_processor_update_tsd_coord()
78 		pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
94 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
95 		if (!pr)  in acpi_processor_update_tsd_coord()
100 		pthrottling = &pr->throttling;  in acpi_processor_update_tsd_coord()
175 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
176 		if (!pr)  in acpi_processor_update_tsd_coord()
184 			pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
211 	struct acpi_processor *pr;  in acpi_processor_throttling_notifier()  local
218 	pr = per_cpu(processors, cpu);  in acpi_processor_throttling_notifier()
219 	if (!pr) {  in acpi_processor_throttling_notifier()
223 	if (!pr->flags.throttling) {  in acpi_processor_throttling_notifier()
229 	p_throttling = &(pr->throttling);  in acpi_processor_throttling_notifier()
236 		p_limit = &pr->limit;  in acpi_processor_throttling_notifier()
241 		if (pr->throttling_platform_limit > target_state)  in acpi_processor_throttling_notifier()
242 			target_state = pr->throttling_platform_limit;  in acpi_processor_throttling_notifier()
275 static int acpi_processor_get_platform_limit(struct acpi_processor *pr)  in acpi_processor_get_platform_limit()  argument
280 	if (!pr)  in acpi_processor_get_platform_limit()
286 	status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);  in acpi_processor_get_platform_limit()
295 	pr->throttling_platform_limit = (int)tpc;  in acpi_processor_get_platform_limit()
299 int acpi_processor_tstate_has_changed(struct acpi_processor *pr)  in acpi_processor_tstate_has_changed()  argument
310 	result = acpi_processor_get_platform_limit(pr);  in acpi_processor_tstate_has_changed()
316 	throttling_limit = pr->throttling_platform_limit;  in acpi_processor_tstate_has_changed()
317 	if (throttling_limit >= pr->throttling.state_count) {  in acpi_processor_tstate_has_changed()
322 	current_state = pr->throttling.state;  in acpi_processor_tstate_has_changed()
331 		limit = &pr->limit;  in acpi_processor_tstate_has_changed()
352 	return acpi_processor_set_throttling(pr, target_state, false);  in acpi_processor_tstate_has_changed()
364 void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,  in acpi_processor_reevaluate_tstate()  argument
373 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
379 	if (!pr->throttling.state_count) {  in acpi_processor_reevaluate_tstate()
383 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
386 	pr->flags.throttling = 1;  in acpi_processor_reevaluate_tstate()
393 	result = acpi_processor_get_throttling(pr);  in acpi_processor_reevaluate_tstate()
397 	if (pr->throttling.state) {  in acpi_processor_reevaluate_tstate()
398 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_reevaluate_tstate()
405 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
410 static int acpi_processor_get_throttling_control(struct acpi_processor *pr)  in acpi_processor_get_throttling_control()  argument
419 	status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);  in acpi_processor_get_throttling_control()
449 	memcpy(&pr->throttling.control_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
466 	memcpy(&pr->throttling.status_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
469 	throttling = &pr->throttling;  in acpi_processor_get_throttling_control()
494 static int acpi_processor_get_throttling_states(struct acpi_processor *pr)  in acpi_processor_get_throttling_states()  argument
504 	status = acpi_evaluate_object(pr->handle, "_TSS", NULL, &buffer);  in acpi_processor_get_throttling_states()
522 	pr->throttling.state_count = tss->package.count;  in acpi_processor_get_throttling_states()
523 	pr->throttling.states_tss =  in acpi_processor_get_throttling_states()
527 	if (!pr->throttling.states_tss) {  in acpi_processor_get_throttling_states()
532 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_throttling_states()
535 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_processor_get_throttling_states()
548 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
556 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
570 static int acpi_processor_get_tsd(struct acpi_processor *pr)  in acpi_processor_get_tsd()  argument
581 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
584 	status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);  in acpi_processor_get_tsd()
605 	pdomain = &(pr->throttling.domain_info);  in acpi_processor_get_tsd()
630 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
633 	cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_tsd()
654 static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)  in acpi_processor_get_throttling_fadt()  argument
661 	if (!pr)  in acpi_processor_get_throttling_fadt()
664 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_fadt()
674 	request_region(pr->throttling.address, 6, "ACPI CPU throttle");  in acpi_processor_get_throttling_fadt()
676 	pr->throttling.state = 0;  in acpi_processor_get_throttling_fadt()
678 	duty_mask = pr->throttling.state_count - 1;  in acpi_processor_get_throttling_fadt()
680 	duty_mask <<= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
684 	value = inl(pr->throttling.address);  in acpi_processor_get_throttling_fadt()
692 		duty_value >>= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
695 			state = pr->throttling.state_count - duty_value;  in acpi_processor_get_throttling_fadt()
698 	pr->throttling.state = state;  in acpi_processor_get_throttling_fadt()
704 			  state, pr->throttling.states[state].performance));  in acpi_processor_get_throttling_fadt()
765 static int acpi_read_throttling_status(struct acpi_processor *pr,  in acpi_read_throttling_status()  argument
774 	throttling = &pr->throttling;  in acpi_read_throttling_status()
797 static int acpi_write_throttling_state(struct acpi_processor *pr,  in acpi_write_throttling_state()  argument
806 	throttling = &pr->throttling;  in acpi_write_throttling_state()
830 static int acpi_get_throttling_state(struct acpi_processor *pr,  in acpi_get_throttling_state()  argument
835 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_get_throttling_state()
837 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_state()
845 static int acpi_get_throttling_value(struct acpi_processor *pr,  in acpi_get_throttling_value()  argument
850 	if (state >= 0 && state <= pr->throttling.state_count) {  in acpi_get_throttling_value()
852 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_value()
860 static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)  in acpi_processor_get_throttling_ptc()  argument
866 	if (!pr)  in acpi_processor_get_throttling_ptc()
869 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_ptc()
872 	pr->throttling.state = 0;  in acpi_processor_get_throttling_ptc()
875 	ret = acpi_read_throttling_status(pr, &value);  in acpi_processor_get_throttling_ptc()
877 		state = acpi_get_throttling_state(pr, value);  in acpi_processor_get_throttling_ptc()
882 			ret = __acpi_processor_set_throttling(pr, state, true,  in acpi_processor_get_throttling_ptc()
887 		pr->throttling.state = state;  in acpi_processor_get_throttling_ptc()
895 	struct acpi_processor *pr = data;  in __acpi_processor_get_throttling()  local
897 	return pr->throttling.acpi_processor_get_throttling(pr);  in __acpi_processor_get_throttling()
907 static int acpi_processor_get_throttling(struct acpi_processor *pr)  in acpi_processor_get_throttling()  argument
909 	if (!pr)  in acpi_processor_get_throttling()
912 	if (!pr->flags.throttling)  in acpi_processor_get_throttling()
921 	if (!cpu_online(pr->id))  in acpi_processor_get_throttling()
924 	return call_on_cpu(pr->id, __acpi_processor_get_throttling, pr, false);  in acpi_processor_get_throttling()
927 static int acpi_processor_get_fadt_info(struct acpi_processor *pr)  in acpi_processor_get_fadt_info()  argument
931 	if (!pr->throttling.address) {  in acpi_processor_get_fadt_info()
934 	} else if (!pr->throttling.duty_width) {  in acpi_processor_get_fadt_info()
939 	else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {  in acpi_processor_get_fadt_info()
944 	pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;  in acpi_processor_get_fadt_info()
952 	step = (1000 / pr->throttling.state_count);  in acpi_processor_get_fadt_info()
954 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_fadt_info()
955 		pr->throttling.states[i].performance = 1000 - step * i;  in acpi_processor_get_fadt_info()
956 		pr->throttling.states[i].power = 1000 - step * i;  in acpi_processor_get_fadt_info()
961 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,  in acpi_processor_set_throttling_fadt()  argument
968 	if (!pr)  in acpi_processor_set_throttling_fadt()
971 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_fadt()
974 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_fadt()
977 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_fadt()
980 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_fadt()
986 		duty_value = pr->throttling.state_count - state;  in acpi_processor_set_throttling_fadt()
988 		duty_value <<= pr->throttling.duty_offset;  in acpi_processor_set_throttling_fadt()
991 		duty_mask = pr->throttling.state_count - 1;  in acpi_processor_set_throttling_fadt()
1003 	value = inl(pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1006 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1016 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1019 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1022 	pr->throttling.state = state;  in acpi_processor_set_throttling_fadt()
1028 			  (pr->throttling.states[state].performance ? pr->  in acpi_processor_set_throttling_fadt()
1034 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,  in acpi_processor_set_throttling_ptc()  argument
1040 	if (!pr)  in acpi_processor_set_throttling_ptc()
1043 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_ptc()
1046 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_ptc()
1049 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_ptc()
1052 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_ptc()
1056 	ret = acpi_get_throttling_value(pr, state, &value);  in acpi_processor_set_throttling_ptc()
1058 		acpi_write_throttling_state(pr, value);  in acpi_processor_set_throttling_ptc()
1059 		pr->throttling.state = state;  in acpi_processor_set_throttling_ptc()
1068 	struct acpi_processor *pr = arg->pr;  in acpi_processor_throttling_fn()  local
1070 	return pr->throttling.acpi_processor_set_throttling(pr,  in acpi_processor_throttling_fn()
1074 static int __acpi_processor_set_throttling(struct acpi_processor *pr,  in __acpi_processor_set_throttling()  argument
1084 	if (!pr)  in __acpi_processor_set_throttling()
1087 	if (!pr->flags.throttling)  in __acpi_processor_set_throttling()
1090 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in __acpi_processor_set_throttling()
1093 	if (cpu_is_offline(pr->id)) {  in __acpi_processor_set_throttling()
1102 	p_throttling = &(pr->throttling);  in __acpi_processor_set_throttling()
1121 		arg.pr = pr;  in __acpi_processor_set_throttling()
1124 		ret = call_on_cpu(pr->id, acpi_processor_throttling_fn, &arg,  in __acpi_processor_set_throttling()
1155 			arg.pr = match_pr;  in __acpi_processor_set_throttling()
1158 			ret = call_on_cpu(pr->id, acpi_processor_throttling_fn,  in __acpi_processor_set_throttling()
1177 int acpi_processor_set_throttling(struct acpi_processor *pr, int state,  in acpi_processor_set_throttling()  argument
1180 	return __acpi_processor_set_throttling(pr, state, force, false);  in acpi_processor_set_throttling()
1183 int acpi_processor_get_throttling_info(struct acpi_processor *pr)  in acpi_processor_get_throttling_info()  argument
1190 			  pr->throttling.address,  in acpi_processor_get_throttling_info()
1191 			  pr->throttling.duty_offset,  in acpi_processor_get_throttling_info()
1192 			  pr->throttling.duty_width));  in acpi_processor_get_throttling_info()
1198 	if (acpi_processor_get_throttling_control(pr) ||  in acpi_processor_get_throttling_info()
1199 		acpi_processor_get_throttling_states(pr) ||  in acpi_processor_get_throttling_info()
1200 		acpi_processor_get_platform_limit(pr))  in acpi_processor_get_throttling_info()
1202 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1204 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1206 		if (acpi_processor_get_fadt_info(pr))  in acpi_processor_get_throttling_info()
1209 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1211 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1219 	if (acpi_processor_get_tsd(pr)) {  in acpi_processor_get_throttling_info()
1220 		pthrottling = &pr->throttling;  in acpi_processor_get_throttling_info()
1222 		cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_throttling_info()
1238 			  pr->throttling.state_count));  in acpi_processor_get_throttling_info()
1240 	pr->flags.throttling = 1;  in acpi_processor_get_throttling_info()
1248 	result = acpi_processor_get_throttling(pr);  in acpi_processor_get_throttling_info()
1252 	if (pr->throttling.state) {  in acpi_processor_get_throttling_info()
1255 				  pr->throttling.state));  in acpi_processor_get_throttling_info()
1256 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_get_throttling_info()
1263 		pr->flags.throttling = 0;  in acpi_processor_get_throttling_info()