65 static int acpi_processor_get_throttling(struct acpi_processor *pr);
66 int acpi_processor_set_throttling(struct acpi_processor *pr,
75 	struct acpi_processor *pr, *match_pr;  in acpi_processor_update_tsd_coord()  local
87 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
88 		if (!pr)  in acpi_processor_update_tsd_coord()
92 		pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
108 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
109 		if (!pr)  in acpi_processor_update_tsd_coord()
114 		pthrottling = &pr->throttling;  in acpi_processor_update_tsd_coord()
189 		pr = per_cpu(processors, i);  in acpi_processor_update_tsd_coord()
190 		if (!pr)  in acpi_processor_update_tsd_coord()
198 			pthrottling = &(pr->throttling);  in acpi_processor_update_tsd_coord()
225 	struct acpi_processor *pr;  in acpi_processor_throttling_notifier()  local
232 	pr = per_cpu(processors, cpu);  in acpi_processor_throttling_notifier()
233 	if (!pr) {  in acpi_processor_throttling_notifier()
237 	if (!pr->flags.throttling) {  in acpi_processor_throttling_notifier()
243 	p_throttling = &(pr->throttling);  in acpi_processor_throttling_notifier()
250 		p_limit = &pr->limit;  in acpi_processor_throttling_notifier()
255 		if (pr->throttling_platform_limit > target_state)  in acpi_processor_throttling_notifier()
256 			target_state = pr->throttling_platform_limit;  in acpi_processor_throttling_notifier()
289 static int acpi_processor_get_platform_limit(struct acpi_processor *pr)  in acpi_processor_get_platform_limit()  argument
294 	if (!pr)  in acpi_processor_get_platform_limit()
300 	status = acpi_evaluate_integer(pr->handle, "_TPC", NULL, &tpc);  in acpi_processor_get_platform_limit()
309 	pr->throttling_platform_limit = (int)tpc;  in acpi_processor_get_platform_limit()
313 int acpi_processor_tstate_has_changed(struct acpi_processor *pr)  in acpi_processor_tstate_has_changed()  argument
324 	result = acpi_processor_get_platform_limit(pr);  in acpi_processor_tstate_has_changed()
330 	throttling_limit = pr->throttling_platform_limit;  in acpi_processor_tstate_has_changed()
331 	if (throttling_limit >= pr->throttling.state_count) {  in acpi_processor_tstate_has_changed()
336 	current_state = pr->throttling.state;  in acpi_processor_tstate_has_changed()
345 		limit = &pr->limit;  in acpi_processor_tstate_has_changed()
366 	return acpi_processor_set_throttling(pr, target_state, false);  in acpi_processor_tstate_has_changed()
378 void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,  in acpi_processor_reevaluate_tstate()  argument
387 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
393 	if (!pr->throttling.state_count) {  in acpi_processor_reevaluate_tstate()
397 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
400 	pr->flags.throttling = 1;  in acpi_processor_reevaluate_tstate()
407 	result = acpi_processor_get_throttling(pr);  in acpi_processor_reevaluate_tstate()
411 	if (pr->throttling.state) {  in acpi_processor_reevaluate_tstate()
412 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_reevaluate_tstate()
419 		pr->flags.throttling = 0;  in acpi_processor_reevaluate_tstate()
424 static int acpi_processor_get_throttling_control(struct acpi_processor *pr)  in acpi_processor_get_throttling_control()  argument
433 	status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);  in acpi_processor_get_throttling_control()
463 	memcpy(&pr->throttling.control_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
480 	memcpy(&pr->throttling.status_register, obj.buffer.pointer,  in acpi_processor_get_throttling_control()
483 	throttling = &pr->throttling;  in acpi_processor_get_throttling_control()
508 static int acpi_processor_get_throttling_states(struct acpi_processor *pr)  in acpi_processor_get_throttling_states()  argument
518 	status = acpi_evaluate_object(pr->handle, "_TSS", NULL, &buffer);  in acpi_processor_get_throttling_states()
536 	pr->throttling.state_count = tss->package.count;  in acpi_processor_get_throttling_states()
537 	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()
680 	pr->throttling.state = 0;  in acpi_processor_get_throttling_fadt()
682 	duty_mask = pr->throttling.state_count - 1;  in acpi_processor_get_throttling_fadt()
684 	duty_mask <<= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
688 	value = inl(pr->throttling.address);  in acpi_processor_get_throttling_fadt()
696 		duty_value >>= pr->throttling.duty_offset;  in acpi_processor_get_throttling_fadt()
699 			state = pr->throttling.state_count - duty_value;  in acpi_processor_get_throttling_fadt()
702 	pr->throttling.state = state;  in acpi_processor_get_throttling_fadt()
708 			  state, pr->throttling.states[state].performance));  in acpi_processor_get_throttling_fadt()
769 static int acpi_read_throttling_status(struct acpi_processor *pr,  in acpi_read_throttling_status()  argument
778 	throttling = &pr->throttling;  in acpi_read_throttling_status()
801 static int acpi_write_throttling_state(struct acpi_processor *pr,  in acpi_write_throttling_state()  argument
810 	throttling = &pr->throttling;  in acpi_write_throttling_state()
834 static int acpi_get_throttling_state(struct acpi_processor *pr,  in acpi_get_throttling_state()  argument
839 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_get_throttling_state()
841 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_state()
849 static int acpi_get_throttling_value(struct acpi_processor *pr,  in acpi_get_throttling_value()  argument
854 	if (state >= 0 && state <= pr->throttling.state_count) {  in acpi_get_throttling_value()
856 		    (struct acpi_processor_tx_tss *)&(pr->throttling.  in acpi_get_throttling_value()
864 static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)  in acpi_processor_get_throttling_ptc()  argument
870 	if (!pr)  in acpi_processor_get_throttling_ptc()
873 	if (!pr->flags.throttling)  in acpi_processor_get_throttling_ptc()
876 	pr->throttling.state = 0;  in acpi_processor_get_throttling_ptc()
879 	ret = acpi_read_throttling_status(pr, &value);  in acpi_processor_get_throttling_ptc()
881 		state = acpi_get_throttling_state(pr, value);  in acpi_processor_get_throttling_ptc()
886 			ret = acpi_processor_set_throttling(pr, state, true);  in acpi_processor_get_throttling_ptc()
890 		pr->throttling.state = state;  in acpi_processor_get_throttling_ptc()
896 static int acpi_processor_get_throttling(struct acpi_processor *pr)  in acpi_processor_get_throttling()  argument
901 	if (!pr)  in acpi_processor_get_throttling()
904 	if (!pr->flags.throttling)  in acpi_processor_get_throttling()
915 	if (set_cpus_allowed_ptr(current, cpumask_of(pr->id))) {  in acpi_processor_get_throttling()
920 	ret = pr->throttling.acpi_processor_get_throttling(pr);  in acpi_processor_get_throttling()
928 static int acpi_processor_get_fadt_info(struct acpi_processor *pr)  in acpi_processor_get_fadt_info()  argument
932 	if (!pr->throttling.address) {  in acpi_processor_get_fadt_info()
935 	} else if (!pr->throttling.duty_width) {  in acpi_processor_get_fadt_info()
940 	else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {  in acpi_processor_get_fadt_info()
945 	pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;  in acpi_processor_get_fadt_info()
953 	step = (1000 / pr->throttling.state_count);  in acpi_processor_get_fadt_info()
955 	for (i = 0; i < pr->throttling.state_count; i++) {  in acpi_processor_get_fadt_info()
956 		pr->throttling.states[i].performance = 1000 - step * i;  in acpi_processor_get_fadt_info()
957 		pr->throttling.states[i].power = 1000 - step * i;  in acpi_processor_get_fadt_info()
962 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,  in acpi_processor_set_throttling_fadt()  argument
969 	if (!pr)  in acpi_processor_set_throttling_fadt()
972 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_fadt()
975 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_fadt()
978 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_fadt()
981 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_fadt()
987 		duty_value = pr->throttling.state_count - state;  in acpi_processor_set_throttling_fadt()
989 		duty_value <<= pr->throttling.duty_offset;  in acpi_processor_set_throttling_fadt()
992 		duty_mask = pr->throttling.state_count - 1;  in acpi_processor_set_throttling_fadt()
1004 	value = inl(pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1007 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1017 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1020 		outl(value, pr->throttling.address);  in acpi_processor_set_throttling_fadt()
1023 	pr->throttling.state = state;  in acpi_processor_set_throttling_fadt()
1029 			  (pr->throttling.states[state].performance ? pr->  in acpi_processor_set_throttling_fadt()
1035 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,  in acpi_processor_set_throttling_ptc()  argument
1041 	if (!pr)  in acpi_processor_set_throttling_ptc()
1044 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling_ptc()
1047 	if (!pr->flags.throttling)  in acpi_processor_set_throttling_ptc()
1050 	if (!force && (state == pr->throttling.state))  in acpi_processor_set_throttling_ptc()
1053 	if (state < pr->throttling_platform_limit)  in acpi_processor_set_throttling_ptc()
1057 	ret = acpi_get_throttling_value(pr, state, &value);  in acpi_processor_set_throttling_ptc()
1059 		acpi_write_throttling_state(pr, value);  in acpi_processor_set_throttling_ptc()
1060 		pr->throttling.state = state;  in acpi_processor_set_throttling_ptc()
1066 int acpi_processor_set_throttling(struct acpi_processor *pr,  in acpi_processor_set_throttling()  argument
1077 	if (!pr)  in acpi_processor_set_throttling()
1080 	if (!pr->flags.throttling)  in acpi_processor_set_throttling()
1083 	if ((state < 0) || (state > (pr->throttling.state_count - 1)))  in acpi_processor_set_throttling()
1094 	if (cpu_is_offline(pr->id)) {  in acpi_processor_set_throttling()
1104 	p_throttling = &(pr->throttling);  in acpi_processor_set_throttling()
1125 		if (set_cpus_allowed_ptr(current, cpumask_of(pr->id))) {  in acpi_processor_set_throttling()
1130 		ret = p_throttling->acpi_processor_set_throttling(pr,  in acpi_processor_set_throttling()
1188 int acpi_processor_get_throttling_info(struct acpi_processor *pr)  in acpi_processor_get_throttling_info()  argument
1195 			  pr->throttling.address,  in acpi_processor_get_throttling_info()
1196 			  pr->throttling.duty_offset,  in acpi_processor_get_throttling_info()
1197 			  pr->throttling.duty_width));  in acpi_processor_get_throttling_info()
1203 	if (acpi_processor_get_throttling_control(pr) ||  in acpi_processor_get_throttling_info()
1204 		acpi_processor_get_throttling_states(pr) ||  in acpi_processor_get_throttling_info()
1205 		acpi_processor_get_platform_limit(pr))  in acpi_processor_get_throttling_info()
1207 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1209 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1211 		if (acpi_processor_get_fadt_info(pr))  in acpi_processor_get_throttling_info()
1214 		pr->throttling.acpi_processor_get_throttling =  in acpi_processor_get_throttling_info()
1216 		pr->throttling.acpi_processor_set_throttling =  in acpi_processor_get_throttling_info()
1224 	if (acpi_processor_get_tsd(pr)) {  in acpi_processor_get_throttling_info()
1225 		pthrottling = &pr->throttling;  in acpi_processor_get_throttling_info()
1227 		cpumask_set_cpu(pr->id, pthrottling->shared_cpu_map);  in acpi_processor_get_throttling_info()
1243 			  pr->throttling.state_count));  in acpi_processor_get_throttling_info()
1245 	pr->flags.throttling = 1;  in acpi_processor_get_throttling_info()
1253 	result = acpi_processor_get_throttling(pr);  in acpi_processor_get_throttling_info()
1257 	if (pr->throttling.state) {  in acpi_processor_get_throttling_info()
1260 				  pr->throttling.state));  in acpi_processor_get_throttling_info()
1261 		result = acpi_processor_set_throttling(pr, 0, false);  in acpi_processor_get_throttling_info()
1268 		pr->flags.throttling = 0;  in acpi_processor_get_throttling_info()