56 	struct acpi_processor *pr;  member
64 static int acpi_processor_get_throttling(struct acpi_processor *pr);
65 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()
539 	if (!pr->throttling.states_tss) {  in acpi_processor_get_throttling_states()
544 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_throttling_states()
547 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_processor_get_throttling_states()
560 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
568 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
582 static int acpi_processor_get_tsd(struct acpi_processor *pr)  in acpi_processor_get_tsd()  argument
593 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
596 	status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);  in acpi_processor_get_tsd()
617 	pdomain = &(pr->throttling.domain_info);  in acpi_processor_get_tsd()
642 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
645 	cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_tsd()
666 static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)  in acpi_processor_get_throttling_fadt()  argument
673 	if (!pr)  in acpi_processor_get_throttling_fadt()
676 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_fadt()
679 	pr->throttling.state = 0;  in acpi_processor_get_throttling_fadt()
681 	duty_mask = pr->throttling.state_count - 1;  in acpi_processor_get_throttling_fadt()
683 	duty_mask <<= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
687 	value = inl(pr->throttling.address);  in acpi_processor_get_throttling_fadt()
695 		duty_value >>= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
698 			state = pr->throttling.state_count - duty_value;  in acpi_processor_get_throttling_fadt()
701 	pr->throttling.state = state;  in acpi_processor_get_throttling_fadt()
707 			  state, pr->throttling.states[state].performance));  in acpi_processor_get_throttling_fadt()
768 static int acpi_read_throttling_status(struct acpi_processor *pr,  in acpi_read_throttling_status()  argument
777 	throttling = &pr->throttling;  in acpi_read_throttling_status()
800 static int acpi_write_throttling_state(struct acpi_processor *pr,  in acpi_write_throttling_state()  argument
809 	throttling = &pr->throttling;  in acpi_write_throttling_state()
833 static int acpi_get_throttling_state(struct acpi_processor *pr,  in acpi_get_throttling_state()  argument
838 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_get_throttling_state()
840 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_state()
848 static int acpi_get_throttling_value(struct acpi_processor *pr,  in acpi_get_throttling_value()  argument
853 	if (state >= 0 && state <= pr->throttling.state_count) {  in acpi_get_throttling_value()
855 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_value()
863 static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)  in acpi_processor_get_throttling_ptc()  argument
869 	if (!pr)  in acpi_processor_get_throttling_ptc()
872 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_ptc()
875 	pr->throttling.state = 0;  in acpi_processor_get_throttling_ptc()
878 	ret = acpi_read_throttling_status(pr, &value);  in acpi_processor_get_throttling_ptc()
880 		state = acpi_get_throttling_state(pr, value);  in acpi_processor_get_throttling_ptc()
885 			ret = acpi_processor_set_throttling(pr, state, true);  in acpi_processor_get_throttling_ptc()
889 		pr->throttling.state = state;  in acpi_processor_get_throttling_ptc()
895 static int acpi_processor_get_throttling(struct acpi_processor *pr)  in acpi_processor_get_throttling()  argument
900 	if (!pr)  in acpi_processor_get_throttling()
903 	if (!pr->flags.throttling)  in acpi_processor_get_throttling()
914 	if (set_cpus_allowed_ptr(current, cpumask_of(pr->id))) {  in acpi_processor_get_throttling()
919 	ret = pr->throttling.acpi_processor_get_throttling(pr);  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 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 = work_on_cpu(pr->id, acpi_processor_throttling_fn, &arg);  in acpi_processor_set_throttling()
1154 			arg.pr = match_pr;  in acpi_processor_set_throttling()
1157 			ret = work_on_cpu(pr->id, acpi_processor_throttling_fn,  in acpi_processor_set_throttling()
1176 int acpi_processor_get_throttling_info(struct acpi_processor *pr)  in acpi_processor_get_throttling_info()  argument
1183 			  pr->throttling.address,  in acpi_processor_get_throttling_info()
1184 			  pr->throttling.duty_offset,  in acpi_processor_get_throttling_info()
1185 			  pr->throttling.duty_width));  in acpi_processor_get_throttling_info()
1191 	if (acpi_processor_get_throttling_control(pr) ||  in acpi_processor_get_throttling_info()
1192 		acpi_processor_get_throttling_states(pr) ||  in acpi_processor_get_throttling_info()
1193 		acpi_processor_get_platform_limit(pr))  in acpi_processor_get_throttling_info()
1195 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1197 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1199 		if (acpi_processor_get_fadt_info(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()
1212 	if (acpi_processor_get_tsd(pr)) {  in acpi_processor_get_throttling_info()
1213 		pthrottling = &pr->throttling;  in acpi_processor_get_throttling_info()
1215 		cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_throttling_info()
1231 			  pr->throttling.state_count));  in acpi_processor_get_throttling_info()
1233 	pr->flags.throttling = 1;  in acpi_processor_get_throttling_info()
1241 	result = acpi_processor_get_throttling(pr);  in acpi_processor_get_throttling_info()
1245 	if (pr->throttling.state) {  in acpi_processor_get_throttling_info()
1248 				  pr->throttling.state));  in acpi_processor_get_throttling_info()
1249 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_get_throttling_info()
1256 		pr->flags.throttling = 0;  in acpi_processor_get_throttling_info()