39 	struct acpi_processor *pr;  member
47 static int acpi_processor_get_throttling(struct acpi_processor *pr);
48 static int __acpi_processor_set_throttling(struct acpi_processor *pr,
57 	struct acpi_processor *pr, *match_pr;  in acpi_processor_update_tsd_coord()  local
69 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
70 		if (!pr)  in acpi_processor_update_tsd_coord()
74 		pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
90 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
91 		if (!pr)  in acpi_processor_update_tsd_coord()
96 		pthrottling = &pr->throttling;  in acpi_processor_update_tsd_coord()
169 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
170 		if (!pr)  in acpi_processor_update_tsd_coord()
178 			pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
201 	struct acpi_processor *pr;  in acpi_processor_throttling_notifier()  local
208 	pr = per_cpu(processors, cpu);  in acpi_processor_throttling_notifier()
209 	if (!pr) {  in acpi_processor_throttling_notifier()
210 		pr_debug("Invalid pr pointer\n");  in acpi_processor_throttling_notifier()
213 	if (!pr->flags.throttling) {  in acpi_processor_throttling_notifier()
214 		acpi_handle_debug(pr->handle,  in acpi_processor_throttling_notifier()
220 	p_throttling = &(pr->throttling);  in acpi_processor_throttling_notifier()
227 		p_limit = &pr->limit;  in acpi_processor_throttling_notifier()
232 		if (pr->throttling_platform_limit > target_state)  in acpi_processor_throttling_notifier()
233 			target_state = pr->throttling_platform_limit;  in acpi_processor_throttling_notifier()
239 		acpi_handle_debug(pr->handle,  in acpi_processor_throttling_notifier()
249 		acpi_handle_debug(pr->handle,  in acpi_processor_throttling_notifier()
264 static int acpi_processor_get_platform_limit(struct acpi_processor *pr)  in acpi_processor_get_platform_limit()  argument
269 	if (!pr)  in acpi_processor_get_platform_limit()
275 	status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);  in acpi_processor_get_platform_limit()
278 			acpi_evaluation_failure_warn(pr->handle, "_TPC", status);  in acpi_processor_get_platform_limit()
284 	pr->throttling_platform_limit = (int)tpc;  in acpi_processor_get_platform_limit()
288 int acpi_processor_tstate_has_changed(struct acpi_processor *pr)  in acpi_processor_tstate_has_changed()  argument
299 	result = acpi_processor_get_platform_limit(pr);  in acpi_processor_tstate_has_changed()
305 	throttling_limit = pr->throttling_platform_limit;  in acpi_processor_tstate_has_changed()
306 	if (throttling_limit >= pr->throttling.state_count) {  in acpi_processor_tstate_has_changed()
311 	current_state = pr->throttling.state;  in acpi_processor_tstate_has_changed()
320 		limit = &pr->limit;  in acpi_processor_tstate_has_changed()
341 	return acpi_processor_set_throttling(pr, target_state, false);  in acpi_processor_tstate_has_changed()
353 void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,  in acpi_processor_reevaluate_tstate()  argument
362 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
368 	if (!pr->throttling.state_count) {  in acpi_processor_reevaluate_tstate()
372 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
375 	pr->flags.throttling = 1;  in acpi_processor_reevaluate_tstate()
382 	result = acpi_processor_get_throttling(pr);  in acpi_processor_reevaluate_tstate()
386 	if (pr->throttling.state) {  in acpi_processor_reevaluate_tstate()
387 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_reevaluate_tstate()
394 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
399 static int acpi_processor_get_throttling_control(struct acpi_processor *pr)  in acpi_processor_get_throttling_control()  argument
408 	status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);  in acpi_processor_get_throttling_control()
411 			acpi_evaluation_failure_warn(pr->handle, "_PTC", status);  in acpi_processor_get_throttling_control()
437 	memcpy(&pr->throttling.control_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
454 	memcpy(&pr->throttling.status_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
457 	throttling = &pr->throttling;  in acpi_processor_get_throttling_control()
482 static int acpi_processor_get_throttling_states(struct acpi_processor *pr)  in acpi_processor_get_throttling_states()  argument
492 	status = acpi_evaluate_object(pr->handle, "_TSS", NULL, &buffer);  in acpi_processor_get_throttling_states()
495 			acpi_evaluation_failure_warn(pr->handle, "_TSS", status);  in acpi_processor_get_throttling_states()
507 	acpi_handle_debug(pr->handle, "Found %d throttling states\n",  in acpi_processor_get_throttling_states()
510 	pr->throttling.state_count = tss->package.count;  in acpi_processor_get_throttling_states()
511 	pr->throttling.states_tss =  in acpi_processor_get_throttling_states()
515 	if (!pr->throttling.states_tss) {  in acpi_processor_get_throttling_states()
520 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_throttling_states()
523 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_processor_get_throttling_states()
529 		acpi_handle_debug(pr->handle, "Extracting state %d\n", i);  in acpi_processor_get_throttling_states()
534 			acpi_handle_warn(pr->handle, "Invalid _TSS data: %s\n",  in acpi_processor_get_throttling_states()
537 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
544 			kfree(pr->throttling.states_tss);  in acpi_processor_get_throttling_states()
558 static int acpi_processor_get_tsd(struct acpi_processor *pr)  in acpi_processor_get_tsd()  argument
569 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
572 	status = acpi_evaluate_object(pr->handle, "_TSD", NULL, &buffer);  in acpi_processor_get_tsd()
575 			acpi_evaluation_failure_warn(pr->handle, "_TSD", status);  in acpi_processor_get_tsd()
593 	pdomain = &(pr->throttling.domain_info);  in acpi_processor_get_tsd()
618 	pthrottling = &pr->throttling;  in acpi_processor_get_tsd()
621 	cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_tsd()
642 static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)  in acpi_processor_get_throttling_fadt()  argument
649 	if (!pr)  in acpi_processor_get_throttling_fadt()
652 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_fadt()
662 	request_region(pr->throttling.address, 6, "ACPI CPU throttle");  in acpi_processor_get_throttling_fadt()
664 	pr->throttling.state = 0;  in acpi_processor_get_throttling_fadt()
666 	duty_mask = pr->throttling.state_count - 1;  in acpi_processor_get_throttling_fadt()
668 	duty_mask <<= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
672 	value = inl(pr->throttling.address);  in acpi_processor_get_throttling_fadt()
680 		duty_value >>= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
683 			state = pr->throttling.state_count - duty_value;  in acpi_processor_get_throttling_fadt()
686 	pr->throttling.state = state;  in acpi_processor_get_throttling_fadt()
690 	acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_fadt()
692 			  state, pr->throttling.states[state].performance);  in acpi_processor_get_throttling_fadt()
749 static int acpi_read_throttling_status(struct acpi_processor *pr,  in acpi_read_throttling_status()  argument
758 	throttling = &pr->throttling;  in acpi_read_throttling_status()
781 static int acpi_write_throttling_state(struct acpi_processor *pr,  in acpi_write_throttling_state()  argument
790 	throttling = &pr->throttling;  in acpi_write_throttling_state()
814 static int acpi_get_throttling_state(struct acpi_processor *pr,  in acpi_get_throttling_state()  argument
819 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_get_throttling_state()
821 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_state()
829 static int acpi_get_throttling_value(struct acpi_processor *pr,  in acpi_get_throttling_value()  argument
834 	if (state >= 0 && state <= pr->throttling.state_count) {  in acpi_get_throttling_value()
836 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_value()
844 static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)  in acpi_processor_get_throttling_ptc()  argument
850 	if (!pr)  in acpi_processor_get_throttling_ptc()
853 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_ptc()
856 	pr->throttling.state = 0;  in acpi_processor_get_throttling_ptc()
859 	ret = acpi_read_throttling_status(pr, &value);  in acpi_processor_get_throttling_ptc()
861 		state = acpi_get_throttling_state(pr, value);  in acpi_processor_get_throttling_ptc()
863 			acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_ptc()
866 			ret = __acpi_processor_set_throttling(pr, state, true,  in acpi_processor_get_throttling_ptc()
871 		pr->throttling.state = state;  in acpi_processor_get_throttling_ptc()
879 	struct acpi_processor *pr = data;  in __acpi_processor_get_throttling()  local
881 	return pr->throttling.acpi_processor_get_throttling(pr);  in __acpi_processor_get_throttling()
884 static int acpi_processor_get_throttling(struct acpi_processor *pr)  in acpi_processor_get_throttling()  argument
886 	if (!pr)  in acpi_processor_get_throttling()
889 	if (!pr->flags.throttling)  in acpi_processor_get_throttling()
898 	if (!cpu_online(pr->id))  in acpi_processor_get_throttling()
901 	return call_on_cpu(pr->id, __acpi_processor_get_throttling, pr, false);  in acpi_processor_get_throttling()
904 static int acpi_processor_get_fadt_info(struct acpi_processor *pr)  in acpi_processor_get_fadt_info()  argument
908 	if (!pr->throttling.address) {  in acpi_processor_get_fadt_info()
909 		acpi_handle_debug(pr->handle, "No throttling register\n");  in acpi_processor_get_fadt_info()
911 	} else if (!pr->throttling.duty_width) {  in acpi_processor_get_fadt_info()
912 		acpi_handle_debug(pr->handle, "No throttling states\n");  in acpi_processor_get_fadt_info()
916 	else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {  in acpi_processor_get_fadt_info()
921 	pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;  in acpi_processor_get_fadt_info()
929 	step = (1000 / pr->throttling.state_count);  in acpi_processor_get_fadt_info()
931 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_fadt_info()
932 		pr->throttling.states[i].performance = 1000 - step * i;  in acpi_processor_get_fadt_info()
933 		pr->throttling.states[i].power = 1000 - step * i;  in acpi_processor_get_fadt_info()
938 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,  in acpi_processor_set_throttling_fadt()  argument
945 	if (!pr)  in acpi_processor_set_throttling_fadt()
948 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_fadt()
951 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_fadt()
954 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_fadt()
957 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_fadt()
963 		duty_value = pr->throttling.state_count - state;  in acpi_processor_set_throttling_fadt()
965 		duty_value <<= pr->throttling.duty_offset;  in acpi_processor_set_throttling_fadt()
968 		duty_mask = pr->throttling.state_count - 1;  in acpi_processor_set_throttling_fadt()
980 	value = inl(pr->throttling.address);  in acpi_processor_set_throttling_fadt()
983 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
993 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
996 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
999 	pr->throttling.state = state;  in acpi_processor_set_throttling_fadt()
1003 	acpi_handle_debug(pr->handle,  in acpi_processor_set_throttling_fadt()
1005 			  (pr->throttling.states[state].performance ? pr->  in acpi_processor_set_throttling_fadt()
1011 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,  in acpi_processor_set_throttling_ptc()  argument
1017 	if (!pr)  in acpi_processor_set_throttling_ptc()
1020 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_ptc()
1023 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_ptc()
1026 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_ptc()
1029 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_ptc()
1033 	ret = acpi_get_throttling_value(pr, state, &value);  in acpi_processor_set_throttling_ptc()
1035 		acpi_write_throttling_state(pr, value);  in acpi_processor_set_throttling_ptc()
1036 		pr->throttling.state = state;  in acpi_processor_set_throttling_ptc()
1045 	struct acpi_processor *pr = arg->pr;  in acpi_processor_throttling_fn()  local
1047 	return pr->throttling.acpi_processor_set_throttling(pr,  in acpi_processor_throttling_fn()
1051 static int __acpi_processor_set_throttling(struct acpi_processor *pr,  in __acpi_processor_set_throttling()  argument
1061 	if (!pr)  in __acpi_processor_set_throttling()
1064 	if (!pr->flags.throttling)  in __acpi_processor_set_throttling()
1067 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in __acpi_processor_set_throttling()
1070 	if (cpu_is_offline(pr->id)) {  in __acpi_processor_set_throttling()
1072 		 * the cpu pointed by pr->id is offline. Unnecessary to change  in __acpi_processor_set_throttling()
1079 	p_throttling = &(pr->throttling);  in __acpi_processor_set_throttling()
1095 	 * it can be called only for the cpu pointed by pr.  in __acpi_processor_set_throttling()
1098 		arg.pr = pr;  in __acpi_processor_set_throttling()
1101 		ret = call_on_cpu(pr->id, acpi_processor_throttling_fn, &arg,  in __acpi_processor_set_throttling()
1117 				acpi_handle_debug(pr->handle,  in __acpi_processor_set_throttling()
1126 				acpi_handle_debug(pr->handle,  in __acpi_processor_set_throttling()
1131 			arg.pr = match_pr;  in __acpi_processor_set_throttling()
1134 			ret = call_on_cpu(pr->id, acpi_processor_throttling_fn,  in __acpi_processor_set_throttling()
1153 int acpi_processor_set_throttling(struct acpi_processor *pr, int state,  in acpi_processor_set_throttling()  argument
1156 	return __acpi_processor_set_throttling(pr, state, force, false);  in acpi_processor_set_throttling()
1159 int acpi_processor_get_throttling_info(struct acpi_processor *pr)  in acpi_processor_get_throttling_info()  argument
1164 	acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_info()
1166 			  pr->throttling.address,  in acpi_processor_get_throttling_info()
1167 			  pr->throttling.duty_offset,  in acpi_processor_get_throttling_info()
1168 			  pr->throttling.duty_width);  in acpi_processor_get_throttling_info()
1174 	if (acpi_processor_get_throttling_control(pr) ||  in acpi_processor_get_throttling_info()
1175 		acpi_processor_get_throttling_states(pr) ||  in acpi_processor_get_throttling_info()
1176 		acpi_processor_get_platform_limit(pr)) {  in acpi_processor_get_throttling_info()
1177 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1179 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1181 		if (acpi_processor_get_fadt_info(pr))  in acpi_processor_get_throttling_info()
1184 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1186 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1194 	if (acpi_processor_get_tsd(pr)) {  in acpi_processor_get_throttling_info()
1195 		pthrottling = &pr->throttling;  in acpi_processor_get_throttling_info()
1197 		cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_throttling_info()
1207 		acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_info()
1212 	acpi_handle_debug(pr->handle, "Found %d throttling states\n",  in acpi_processor_get_throttling_info()
1213 			  pr->throttling.state_count);  in acpi_processor_get_throttling_info()
1215 	pr->flags.throttling = 1;  in acpi_processor_get_throttling_info()
1223 	result = acpi_processor_get_throttling(pr);  in acpi_processor_get_throttling_info()
1227 	if (pr->throttling.state) {  in acpi_processor_get_throttling_info()
1228 		acpi_handle_debug(pr->handle,  in acpi_processor_get_throttling_info()
1230 				  pr->throttling.state);  in acpi_processor_get_throttling_info()
1231 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_get_throttling_info()
1238 		pr->flags.throttling = 0;  in acpi_processor_get_throttling_info()