42 	struct acpi_processor *pr;  member
50 static int acpi_processor_get_throttling(struct acpi_processor *pr);
51 static int __acpi_processor_set_throttling(struct acpi_processor *pr,
60 	struct acpi_processor *pr, *match_pr;  in acpi_processor_update_tsd_coord()  local
72 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
73 		if (!pr)  in acpi_processor_update_tsd_coord()
77 		pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
93 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
94 		if (!pr)  in acpi_processor_update_tsd_coord()
99 		pthrottling = &pr->throttling;  in acpi_processor_update_tsd_coord()
172 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
173 		if (!pr)  in acpi_processor_update_tsd_coord()
181 			pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
204 	struct acpi_processor *pr;  in acpi_processor_throttling_notifier()  local
211 	pr = per_cpu(processors, cpu);  in acpi_processor_throttling_notifier()
212 	if (!pr) {  in acpi_processor_throttling_notifier()
213 		pr_debug("Invalid pr pointer\n");  in acpi_processor_throttling_notifier()
216 	if (!pr->flags.throttling) {  in acpi_processor_throttling_notifier()
217 		acpi_handle_debug(pr->handle,  in acpi_processor_throttling_notifier()
223 	p_throttling = &(pr->throttling);  in acpi_processor_throttling_notifier()
230 		p_limit = &pr->limit;  in acpi_processor_throttling_notifier()
235 		if (pr->throttling_platform_limit > target_state)  in acpi_processor_throttling_notifier()
236 			target_state = pr->throttling_platform_limit;  in acpi_processor_throttling_notifier()
242 		acpi_handle_debug(pr->handle,  in acpi_processor_throttling_notifier()
252 		acpi_handle_debug(pr->handle,  in acpi_processor_throttling_notifier()
267 static int acpi_processor_get_platform_limit(struct acpi_processor *pr)  in acpi_processor_get_platform_limit()  argument
272 	if (!pr)  in acpi_processor_get_platform_limit()
278 	status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);  in acpi_processor_get_platform_limit()
281 			acpi_evaluation_failure_warn(pr->handle, "_TPC", status);  in acpi_processor_get_platform_limit()
287 	pr->throttling_platform_limit = (int)tpc;  in acpi_processor_get_platform_limit()
291 int acpi_processor_tstate_has_changed(struct acpi_processor *pr)  in acpi_processor_tstate_has_changed()  argument
302 	result = acpi_processor_get_platform_limit(pr);  in acpi_processor_tstate_has_changed()
308 	throttling_limit = pr->throttling_platform_limit;  in acpi_processor_tstate_has_changed()
309 	if (throttling_limit >= pr->throttling.state_count) {  in acpi_processor_tstate_has_changed()
314 	current_state = pr->throttling.state;  in acpi_processor_tstate_has_changed()
323 		limit = &pr->limit;  in acpi_processor_tstate_has_changed()
344 	return acpi_processor_set_throttling(pr, target_state, false);  in acpi_processor_tstate_has_changed()
356 void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,  in acpi_processor_reevaluate_tstate()  argument
365 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
371 	if (!pr->throttling.state_count) {  in acpi_processor_reevaluate_tstate()
375 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
378 	pr->flags.throttling = 1;  in acpi_processor_reevaluate_tstate()
385 	result = acpi_processor_get_throttling(pr);  in acpi_processor_reevaluate_tstate()
389 	if (pr->throttling.state) {  in acpi_processor_reevaluate_tstate()
390 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_reevaluate_tstate()
397 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
402 static int acpi_processor_get_throttling_control(struct acpi_processor *pr)  in acpi_processor_get_throttling_control()  argument
411 	status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);  in acpi_processor_get_throttling_control()
414 			acpi_evaluation_failure_warn(pr->handle, "_PTC", status);  in acpi_processor_get_throttling_control()
440 	memcpy(&pr->throttling.control_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
457 	memcpy(&pr->throttling.status_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
460 	throttling = &pr->throttling;  in acpi_processor_get_throttling_control()
485 static int acpi_processor_get_throttling_states(struct acpi_processor *pr)  in acpi_processor_get_throttling_states()  argument
495 	status = acpi_evaluate_object(pr->handle, "_TSS", NULL, &buffer);  in acpi_processor_get_throttling_states()
498 			acpi_evaluation_failure_warn(pr->handle, "_TSS", status);  in acpi_processor_get_throttling_states()
510 	acpi_handle_debug(pr->handle, "Found %d throttling states\n",  in acpi_processor_get_throttling_states()
513 	pr->throttling.state_count = tss->package.count;  in acpi_processor_get_throttling_states()
514 	pr->throttling.states_tss =  in acpi_processor_get_throttling_states()
518 	if (!pr->throttling.states_tss) {  in acpi_processor_get_throttling_states()
523 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_throttling_states()
526 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_processor_get_throttling_states()
532 		acpi_handle_debug(pr->handle, "Extracting state %d\n", i);  in acpi_processor_get_throttling_states()
537 			acpi_handle_warn(pr->handle, "Invalid _TSS data: %s\n",  in acpi_processor_get_throttling_states()
540 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
547 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
561 static int acpi_processor_get_tsd(struct acpi_processor *pr)  in acpi_processor_get_tsd()  argument
572 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
575 	status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);  in acpi_processor_get_tsd()
578 			acpi_evaluation_failure_warn(pr->handle, "_TSD", status);  in acpi_processor_get_tsd()
596 	pdomain = &(pr->throttling.domain_info);  in acpi_processor_get_tsd()
621 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
624 	cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_tsd()
645 static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)  in acpi_processor_get_throttling_fadt()  argument
652 	if (!pr)  in acpi_processor_get_throttling_fadt()
655 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_fadt()
665 	request_region(pr->throttling.address, 6, "ACPI CPU throttle");  in acpi_processor_get_throttling_fadt()
667 	pr->throttling.state = 0;  in acpi_processor_get_throttling_fadt()
669 	duty_mask = pr->throttling.state_count - 1;  in acpi_processor_get_throttling_fadt()
671 	duty_mask <<= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
675 	value = inl(pr->throttling.address);  in acpi_processor_get_throttling_fadt()
683 		duty_value >>= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
686 			state = pr->throttling.state_count - duty_value;  in acpi_processor_get_throttling_fadt()
689 	pr->throttling.state = state;  in acpi_processor_get_throttling_fadt()
693 	acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_fadt()
695 			  state, pr->throttling.states[state].performance);  in acpi_processor_get_throttling_fadt()
752 static int acpi_read_throttling_status(struct acpi_processor *pr,  in acpi_read_throttling_status()  argument
761 	throttling = &pr->throttling;  in acpi_read_throttling_status()
784 static int acpi_write_throttling_state(struct acpi_processor *pr,  in acpi_write_throttling_state()  argument
793 	throttling = &pr->throttling;  in acpi_write_throttling_state()
817 static int acpi_get_throttling_state(struct acpi_processor *pr,  in acpi_get_throttling_state()  argument
822 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_get_throttling_state()
824 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_state()
832 static int acpi_get_throttling_value(struct acpi_processor *pr,  in acpi_get_throttling_value()  argument
837 	if (state >= 0 && state <= pr->throttling.state_count) {  in acpi_get_throttling_value()
839 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_value()
847 static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)  in acpi_processor_get_throttling_ptc()  argument
853 	if (!pr)  in acpi_processor_get_throttling_ptc()
856 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_ptc()
859 	pr->throttling.state = 0;  in acpi_processor_get_throttling_ptc()
862 	ret = acpi_read_throttling_status(pr, &value);  in acpi_processor_get_throttling_ptc()
864 		state = acpi_get_throttling_state(pr, value);  in acpi_processor_get_throttling_ptc()
866 			acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_ptc()
869 			ret = __acpi_processor_set_throttling(pr, state, true,  in acpi_processor_get_throttling_ptc()
874 		pr->throttling.state = state;  in acpi_processor_get_throttling_ptc()
882 	struct acpi_processor *pr = data;  in __acpi_processor_get_throttling()  local
884 	return pr->throttling.acpi_processor_get_throttling(pr);  in __acpi_processor_get_throttling()
887 static int acpi_processor_get_throttling(struct acpi_processor *pr)  in acpi_processor_get_throttling()  argument
889 	if (!pr)  in acpi_processor_get_throttling()
892 	if (!pr->flags.throttling)  in acpi_processor_get_throttling()
901 	if (!cpu_online(pr->id))  in acpi_processor_get_throttling()
904 	return call_on_cpu(pr->id, __acpi_processor_get_throttling, pr, false);  in acpi_processor_get_throttling()
907 static int acpi_processor_get_fadt_info(struct acpi_processor *pr)  in acpi_processor_get_fadt_info()  argument
911 	if (!pr->throttling.address) {  in acpi_processor_get_fadt_info()
912 		acpi_handle_debug(pr->handle, "No throttling register\n");  in acpi_processor_get_fadt_info()
914 	} else if (!pr->throttling.duty_width) {  in acpi_processor_get_fadt_info()
915 		acpi_handle_debug(pr->handle, "No throttling states\n");  in acpi_processor_get_fadt_info()
919 	else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {  in acpi_processor_get_fadt_info()
924 	pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;  in acpi_processor_get_fadt_info()
932 	step = (1000 / pr->throttling.state_count);  in acpi_processor_get_fadt_info()
934 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_fadt_info()
935 		pr->throttling.states[i].performance = 1000 - step * i;  in acpi_processor_get_fadt_info()
936 		pr->throttling.states[i].power = 1000 - step * i;  in acpi_processor_get_fadt_info()
941 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,  in acpi_processor_set_throttling_fadt()  argument
948 	if (!pr)  in acpi_processor_set_throttling_fadt()
951 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_fadt()
954 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_fadt()
957 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_fadt()
960 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_fadt()
966 		duty_value = pr->throttling.state_count - state;  in acpi_processor_set_throttling_fadt()
968 		duty_value <<= pr->throttling.duty_offset;  in acpi_processor_set_throttling_fadt()
971 		duty_mask = pr->throttling.state_count - 1;  in acpi_processor_set_throttling_fadt()
983 	value = inl(pr->throttling.address);  in acpi_processor_set_throttling_fadt()
986 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
996 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
999 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1002 	pr->throttling.state = state;  in acpi_processor_set_throttling_fadt()
1006 	acpi_handle_debug(pr->handle,  in acpi_processor_set_throttling_fadt()
1008 			  (pr->throttling.states[state].performance ? pr->  in acpi_processor_set_throttling_fadt()
1014 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,  in acpi_processor_set_throttling_ptc()  argument
1020 	if (!pr)  in acpi_processor_set_throttling_ptc()
1023 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_ptc()
1026 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_ptc()
1029 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_ptc()
1032 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_ptc()
1036 	ret = acpi_get_throttling_value(pr, state, &value);  in acpi_processor_set_throttling_ptc()
1038 		acpi_write_throttling_state(pr, value);  in acpi_processor_set_throttling_ptc()
1039 		pr->throttling.state = state;  in acpi_processor_set_throttling_ptc()
1048 	struct acpi_processor *pr = arg->pr;  in acpi_processor_throttling_fn()  local
1050 	return pr->throttling.acpi_processor_set_throttling(pr,  in acpi_processor_throttling_fn()
1054 static int __acpi_processor_set_throttling(struct acpi_processor *pr,  in __acpi_processor_set_throttling()  argument
1064 	if (!pr)  in __acpi_processor_set_throttling()
1067 	if (!pr->flags.throttling)  in __acpi_processor_set_throttling()
1070 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in __acpi_processor_set_throttling()
1073 	if (cpu_is_offline(pr->id)) {  in __acpi_processor_set_throttling()
1075 		 * the cpu pointed by pr->id is offline. Unnecessary to change  in __acpi_processor_set_throttling()
1082 	p_throttling = &(pr->throttling);  in __acpi_processor_set_throttling()
1098 	 * it can be called only for the cpu pointed by pr.  in __acpi_processor_set_throttling()
1101 		arg.pr = pr;  in __acpi_processor_set_throttling()
1104 		ret = call_on_cpu(pr->id, acpi_processor_throttling_fn, &arg,  in __acpi_processor_set_throttling()
1120 				acpi_handle_debug(pr->handle,  in __acpi_processor_set_throttling()
1129 				acpi_handle_debug(pr->handle,  in __acpi_processor_set_throttling()
1134 			arg.pr = match_pr;  in __acpi_processor_set_throttling()
1137 			ret = call_on_cpu(pr->id, acpi_processor_throttling_fn,  in __acpi_processor_set_throttling()
1156 int acpi_processor_set_throttling(struct acpi_processor *pr, int state,  in acpi_processor_set_throttling()  argument
1159 	return __acpi_processor_set_throttling(pr, state, force, false);  in acpi_processor_set_throttling()
1162 int acpi_processor_get_throttling_info(struct acpi_processor *pr)  in acpi_processor_get_throttling_info()  argument
1167 	acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_info()
1169 			  pr->throttling.address,  in acpi_processor_get_throttling_info()
1170 			  pr->throttling.duty_offset,  in acpi_processor_get_throttling_info()
1171 			  pr->throttling.duty_width);  in acpi_processor_get_throttling_info()
1177 	if (acpi_processor_get_throttling_control(pr) ||  in acpi_processor_get_throttling_info()
1178 		acpi_processor_get_throttling_states(pr) ||  in acpi_processor_get_throttling_info()
1179 		acpi_processor_get_platform_limit(pr)) {  in acpi_processor_get_throttling_info()
1180 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1182 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1184 		if (acpi_processor_get_fadt_info(pr))  in acpi_processor_get_throttling_info()
1187 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1189 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1197 	if (acpi_processor_get_tsd(pr)) {  in acpi_processor_get_throttling_info()
1198 		pthrottling = &pr->throttling;  in acpi_processor_get_throttling_info()
1200 		cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_throttling_info()
1210 		acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_info()
1215 	acpi_handle_debug(pr->handle, "Found %d throttling states\n",  in acpi_processor_get_throttling_info()
1216 			  pr->throttling.state_count);  in acpi_processor_get_throttling_info()
1218 	pr->flags.throttling = 1;  in acpi_processor_get_throttling_info()
1226 	result = acpi_processor_get_throttling(pr);  in acpi_processor_get_throttling_info()
1230 	if (pr->throttling.state) {  in acpi_processor_get_throttling_info()
1231 		acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_info()
1233 				  pr->throttling.state);  in acpi_processor_get_throttling_info()
1234 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_get_throttling_info()
1241 		pr->flags.throttling = 0;  in acpi_processor_get_throttling_info()