1 /*-
56 #define TZ_KELVTOC(x)	(((x) - TZ_ZEROC) / 10), abs(((x) - TZ_ZEROC) % 10)
59 #define TZ_NOTIFY_LEVELS	0x81 /* Cooling levels changed. */
70 #define TZ_NOTIFYCOUNT	(TZ_VALIDCHECKS - 1)
92     int				tz_active;	/*Current active cooling*/
93 #define TZ_ACTIVE_NONE		-1
94 #define TZ_ACTIVE_UNKNOWN	-2
95     int				tz_requested;	/*Minimum active cooling*/
96     int				tz_thflags;	/*Current temp-related flags*/
107 					/*Current cooling starting time*/
117     /* passive cooling */
174 /* Minimum cooling run time */
183 static int			acpi_tz_cooling_unit = -1;
192 	result = -10;  in acpi_tz_probe()
209     sc->tz_dev = dev;  in acpi_tz_attach()
210     sc->tz_handle = acpi_get_handle(dev);  in acpi_tz_attach()
211     sc->tz_requested = TZ_ACTIVE_NONE;  in acpi_tz_attach()
212     sc->tz_active = TZ_ACTIVE_UNKNOWN;  in acpi_tz_attach()
213     sc->tz_thflags = TZ_THFLAG_NONE;  in acpi_tz_attach()
214     sc->tz_cooling_proc = NULL;  in acpi_tz_attach()
215     sc->tz_cooling_proc_running = FALSE;  in acpi_tz_attach()
216     sc->tz_cooling_active = FALSE;  in acpi_tz_attach()
217     sc->tz_cooling_updated = FALSE;  in acpi_tz_attach()
218     sc->tz_cooling_enabled = FALSE;  in acpi_tz_attach()
231     AcpiInstallNotifyHandler(sc->tz_handle, ACPI_DEVICE_NOTIFY,  in acpi_tz_attach()
243 	    SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "thermal",  in acpi_tz_attach()
249 		       "minimum cooling run time in sec");  in acpi_tz_attach()
259     sysctl_ctx_init(&sc->tz_sysctl_ctx);  in acpi_tz_attach()
261     sc->tz_sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&sc->tz_sysctl_ctx,  in acpi_tz_attach()
264     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
266 	&sc->tz_temperature, 0, sysctl_handle_int, "IK",  in acpi_tz_attach()
268     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
270 	0, acpi_tz_active_sysctl, "I", "cooling is active");  in acpi_tz_attach()
271     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
275 	"enable passive (speed reduction) cooling");  in acpi_tz_attach()
277     SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
279 		   &sc->tz_thflags, 0, "thermal zone flags");  in acpi_tz_attach()
280     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
283 	"passive cooling temp setpoint");  in acpi_tz_attach()
284     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
288     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
292     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
296     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
298 	&sc->tz_zone.ac, sizeof(sc->tz_zone.ac), sysctl_handle_opaque, "IK",  in acpi_tz_attach()
300     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
303 	"I", "thermal constant 1 for passive cooling");  in acpi_tz_attach()
304     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
307 	"I", "thermal constant 2 for passive cooling");  in acpi_tz_attach()
308     SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),  in acpi_tz_attach()
311 	"I", "thermal sampling period for passive cooling");  in acpi_tz_attach()
316     sc->tz_event = EVENTHANDLER_REGISTER(power_profile_change,  in acpi_tz_attach()
325     sc->tz_flags |= TZ_FLAG_GETPROFILE;  in acpi_tz_attach()
349 	printf("acpi_tz: could not create thread - %d", error);  in acpi_tz_startup()
352      * Create a thread to handle passive cooling for 1st zone which  in acpi_tz_startup()
364 	    sc->tz_cooling_enabled = TRUE;  in acpi_tz_startup()
367 		sc->tz_cooling_enabled = FALSE;  in acpi_tz_startup()
394 	if (sc->tz_zone.al[i].Pointer != NULL)  in acpi_tz_establish()
395 	    AcpiOsFree(sc->tz_zone.al[i].Pointer);  in acpi_tz_establish()
396     if (sc->tz_zone.psl.Pointer != NULL)  in acpi_tz_establish()
397 	AcpiOsFree(sc->tz_zone.psl.Pointer);  in acpi_tz_establish()
401      * with passive cooling thread which refers psv, tc1, tc2 and tsp.  in acpi_tz_establish()
403     bzero(sc->tz_zone.ac, sizeof(sc->tz_zone.ac));  in acpi_tz_establish()
404     bzero(sc->tz_zone.al, sizeof(sc->tz_zone.al));  in acpi_tz_establish()
405     bzero(&sc->tz_zone.psl, sizeof(sc->tz_zone.psl));  in acpi_tz_establish()
410 	acpi_tz_getparam(sc, nbuf, &sc->tz_zone.ac[i]);  in acpi_tz_establish()
412 	sc->tz_zone.al[i].Length = ACPI_ALLOCATE_BUFFER;  in acpi_tz_establish()
413 	sc->tz_zone.al[i].Pointer = NULL;  in acpi_tz_establish()
414 	AcpiEvaluateObject(sc->tz_handle, nbuf, NULL, &sc->tz_zone.al[i]);  in acpi_tz_establish()
415 	obj = (ACPI_OBJECT *)sc->tz_zone.al[i].Pointer;  in acpi_tz_establish()
418 	    if (obj->Type != ACPI_TYPE_PACKAGE) {  in acpi_tz_establish()
419 		device_printf(sc->tz_dev, "%s has unknown type %d, rejecting\n",  in acpi_tz_establish()
420 			      nbuf, obj->Type);  in acpi_tz_establish()
425     acpi_tz_getparam(sc, "_CRT", &sc->tz_zone.crt);  in acpi_tz_establish()
426     acpi_tz_getparam(sc, "_HOT", &sc->tz_zone.hot);  in acpi_tz_establish()
427     acpi_tz_getparam(sc, "_CR3", &sc->tz_zone.cr3);  in acpi_tz_establish()
428     sc->tz_zone.psl.Length = ACPI_ALLOCATE_BUFFER;  in acpi_tz_establish()
429     sc->tz_zone.psl.Pointer = NULL;  in acpi_tz_establish()
430     AcpiEvaluateObject(sc->tz_handle, "_PSL", NULL, &sc->tz_zone.psl);  in acpi_tz_establish()
431     acpi_tz_getparam(sc, "_PSV", &sc->tz_zone.psv);  in acpi_tz_establish()
432     acpi_tz_getparam(sc, "_TC1", &sc->tz_zone.tc1);  in acpi_tz_establish()
433     acpi_tz_getparam(sc, "_TC2", &sc->tz_zone.tc2);  in acpi_tz_establish()
434     acpi_tz_getparam(sc, "_TSP", &sc->tz_zone.tsp);  in acpi_tz_establish()
435     acpi_tz_getparam(sc, "_TZP", &sc->tz_zone.tzp);  in acpi_tz_establish()
438      * Sanity-check the values we've been given.  in acpi_tz_establish()
443     acpi_tz_sanity(sc, &sc->tz_zone.crt, "_CRT");  in acpi_tz_establish()
444     acpi_tz_sanity(sc, &sc->tz_zone.hot, "_HOT");  in acpi_tz_establish()
445     acpi_tz_sanity(sc, &sc->tz_zone.cr3, "_CR3");  in acpi_tz_establish()
446     acpi_tz_sanity(sc, &sc->tz_zone.psv, "_PSV");  in acpi_tz_establish()
448 	acpi_tz_sanity(sc, &sc->tz_zone.ac[i], "_ACx");  in acpi_tz_establish()
461     if (active < -1 || active >= TZ_NUMLEVELS)  in acpi_tz_aclevel_string()
479     status = acpi_GetInteger(sc->tz_handle, acpi_tz_tmp_name, &temp);  in acpi_tz_get_temperature()
481 	ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),  in acpi_tz_get_temperature()
482 	    "error fetching current temperature -- %s\n",  in acpi_tz_get_temperature()
489     if (temp == -1)  in acpi_tz_get_temperature()
493     sc->tz_temperature = temp;  in acpi_tz_get_temperature()
516 	/* XXX disable zone? go to max cooling? */  in acpi_tz_monitor()
519     temp = sc->tz_temperature;  in acpi_tz_monitor()
524      * Note that the _ACx levels sort from hot to cold.  in acpi_tz_monitor()
527     for (i = TZ_NUMLEVELS - 1; i >= 0; i--) {  in acpi_tz_monitor()
528 	if (sc->tz_zone.ac[i] != -1 && temp >= sc->tz_zone.ac[i])  in acpi_tz_monitor()
534      * minimum cooling run time if requested.  in acpi_tz_monitor()
536     if (acpi_tz_min_runtime > 0 && sc->tz_active != TZ_ACTIVE_NONE &&  in acpi_tz_monitor()
537 	sc->tz_active != TZ_ACTIVE_UNKNOWN &&  in acpi_tz_monitor()
538 	(newactive == TZ_ACTIVE_NONE || newactive > sc->tz_active)) {  in acpi_tz_monitor()
540 	timespecsub(&curtime, &sc->tz_cooling_started, &curtime);  in acpi_tz_monitor()
542 	    newactive = sc->tz_active;  in acpi_tz_monitor()
546     if (sc->tz_requested != TZ_ACTIVE_NONE && (newactive == TZ_ACTIVE_NONE  in acpi_tz_monitor()
547         || sc->tz_requested < newactive))  in acpi_tz_monitor()
548 	newactive = sc->tz_requested;  in acpi_tz_monitor()
550     /* update temperature-related flags */  in acpi_tz_monitor()
552     if (sc->tz_zone.psv != -1 && temp >= sc->tz_zone.psv)  in acpi_tz_monitor()
554     if (sc->tz_zone.cr3 != -1 && temp >= sc->tz_zone.cr3)  in acpi_tz_monitor()
556     if (sc->tz_zone.hot != -1 && temp >= sc->tz_zone.hot)  in acpi_tz_monitor()
558     if (sc->tz_zone.crt != -1 && temp >= sc->tz_zone.crt)  in acpi_tz_monitor()
561     /* If the active cooling state has changed, we have to switch things. */  in acpi_tz_monitor()
562     if (sc->tz_active == TZ_ACTIVE_UNKNOWN) {  in acpi_tz_monitor()
564 	 * We don't know which cooling device is on or off,  in acpi_tz_monitor()
569 	    if (sc->tz_zone.al[i].Pointer != NULL) {  in acpi_tz_monitor()
571 		    (ACPI_OBJECT *)sc->tz_zone.al[i].Pointer,  in acpi_tz_monitor()
576 	sc->tz_active = TZ_ACTIVE_NONE;  in acpi_tz_monitor()
579     if (newactive != sc->tz_active) {  in acpi_tz_monitor()
580 	/* Turn off unneeded cooling devices that are on, if any are */  in acpi_tz_monitor()
581 	for (i = TZ_ACTIVE_LEVEL(sc->tz_active);  in acpi_tz_monitor()
584 		(ACPI_OBJECT *)sc->tz_zone.al[i].Pointer,  in acpi_tz_monitor()
587 	/* Turn on cooling devices that are required, if any are */  in acpi_tz_monitor()
588 	for (i = TZ_ACTIVE_LEVEL(sc->tz_active) - 1;  in acpi_tz_monitor()
589 	     i >= TZ_ACTIVE_LEVEL(newactive); i--) {  in acpi_tz_monitor()
591 		(ACPI_OBJECT *)sc->tz_zone.al[i].Pointer,  in acpi_tz_monitor()
595 	ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),  in acpi_tz_monitor()
597 		    acpi_tz_aclevel_string(sc->tz_active),  in acpi_tz_monitor()
599 	sc->tz_active = newactive;  in acpi_tz_monitor()
600 	getnanotime(&sc->tz_cooling_started);  in acpi_tz_monitor()
603     /* XXX (de)activate any passive cooling that may be required. */  in acpi_tz_monitor()
616 	sc->tz_validchecks++;  in acpi_tz_monitor()
617 	if (sc->tz_validchecks == TZ_VALIDCHECKS) {  in acpi_tz_monitor()
618 	    device_printf(sc->tz_dev,  in acpi_tz_monitor()
619 		"WARNING - current temperature (%d.%dC) exceeds safe limits\n",  in acpi_tz_monitor()
620 		TZ_KELVTOC(sc->tz_temperature));  in acpi_tz_monitor()
624 		acpi_sc = acpi_device_get_parent_softc(sc->tz_dev);  in acpi_tz_monitor()
627 	} else if (sc->tz_validchecks == TZ_NOTIFYCOUNT)  in acpi_tz_monitor()
628 	    acpi_UserNotify("Thermal", sc->tz_handle, TZ_NOTIFY_CRITICAL);  in acpi_tz_monitor()
630 	sc->tz_validchecks = 0;  in acpi_tz_monitor()
632     sc->tz_thflags = newflags;  in acpi_tz_monitor()
686 	ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),  in acpi_tz_switch_cooler_on()
687 		    "failed to activate %s - %s\n", acpi_name(cooler),  in acpi_tz_switch_cooler_on()
695  * Read/debug-print a parameter, default it to -1.
703     if (ACPI_FAILURE(acpi_GetInteger(sc->tz_handle, node, data))) {  in acpi_tz_getparam()
704 	*data = -1;  in acpi_tz_getparam()
707 			 acpi_name(sc->tz_handle), node, *data));  in acpi_tz_getparam()
714  * Sanity-check a temperature value.  Assume that setpoints
720     if (*val != -1 && (*val < TZ_ZEROC || *val > TZ_ZEROC + 2000)) {  in acpi_tz_sanity()
729 	if (what != acpi_tz_tmp_name || !sc->tz_insane_tmp_notified) {  in acpi_tz_sanity()
730 	    device_printf(sc->tz_dev, "%s value is absurd, ignored (%d.%dC)\n",  in acpi_tz_sanity()
735 		sc->tz_insane_tmp_notified = 1;  in acpi_tz_sanity()
737 	*val = -1;  in acpi_tz_sanity()
743 	sc->tz_insane_tmp_notified = 0;  in acpi_tz_sanity()
756     sc = (struct acpi_tz_softc *)oidp->oid_arg1;  in acpi_tz_active_sysctl()
757     active = sc->tz_active;  in acpi_tz_active_sysctl()
761     if (error != 0 || req->newptr == NULL)  in acpi_tz_active_sysctl()
763     if (active < -1 || active >= TZ_NUMLEVELS)  in acpi_tz_active_sysctl()
766     /* Set new preferred level and re-switch */  in acpi_tz_active_sysctl()
767     sc->tz_requested = active;  in acpi_tz_active_sysctl()
778     sc = (struct acpi_tz_softc *)oidp->oid_arg1;  in acpi_tz_cooling_sysctl()
779     enabled = sc->tz_cooling_enabled;  in acpi_tz_cooling_sysctl()
783     if (error != 0 || req->newptr == NULL)  in acpi_tz_cooling_sysctl()
796     sc->tz_cooling_enabled = enabled;  in acpi_tz_cooling_sysctl()
807     sc = oidp->oid_arg1;  in acpi_tz_temp_sysctl()
808     temp_ptr = (int *)(void *)(uintptr_t)((uintptr_t)sc + oidp->oid_arg2);  in acpi_tz_temp_sysctl()
813     if (error != 0 || req->newptr == NULL)  in acpi_tz_temp_sysctl()
820     /* Check user-supplied value for sanity. */  in acpi_tz_temp_sysctl()
821     acpi_tz_sanity(sc, &temp, "user-supplied temp");  in acpi_tz_temp_sysctl()
822     if (temp == -1)  in acpi_tz_temp_sysctl()
836     sc = oidp->oid_arg1;  in acpi_tz_passive_sysctl()
837     val_ptr = (int *)(void *)(uintptr_t)((uintptr_t)sc + oidp->oid_arg2);  in acpi_tz_passive_sysctl()
842     if (error != 0 || req->newptr == NULL)  in acpi_tz_passive_sysctl()
871 	ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),  in acpi_tz_notify_handler()
885     sc->tz_flags |= flags;  in acpi_tz_signal()
895  * acpi_tz_monitor() before evaluating changes to setpoints or the cooling
918     /* XXX passive cooling actions? */  in acpi_tz_timeout()
940     if ((sc->tz_flags & TZ_FLAG_NO_SCP) == 0) {  in acpi_tz_power_profile()
942 	status = acpi_SetInteger(sc->tz_handle, "_SCP",  in acpi_tz_power_profile()
946 		ACPI_VPRINT(sc->tz_dev,  in acpi_tz_power_profile()
947 			    acpi_device_get_parent_softc(sc->tz_dev),  in acpi_tz_power_profile()
948 			    "can't evaluate %s._SCP - %s\n",  in acpi_tz_power_profile()
949 			    acpi_name(sc->tz_handle),  in acpi_tz_power_profile()
951 	    sc->tz_flags |= TZ_FLAG_NO_SCP;  in acpi_tz_power_profile()
953 	    /* We have to re-evaluate the entire zone now */  in acpi_tz_power_profile()
979 	/* If the number of devices has changed, re-evaluate. */  in acpi_tz_thread()
995 	    flags = sc[i]->tz_flags;  in acpi_tz_thread()
996 	    sc[i]->tz_flags &= TZ_FLAG_NO_SCP;  in acpi_tz_thread()
1004 	    if (sc[i]->tz_flags & ~TZ_FLAG_NO_SCP)  in acpi_tz_thread()
1027     if (!sc->tz_cooling_updated)  in acpi_tz_cpufreq_restore()
1031     ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),  in acpi_tz_cpufreq_restore()
1033 	TZ_KELVTOC(sc->tz_temperature), sc->tz_cooling_saved_freq);  in acpi_tz_cpufreq_restore()
1036 	sc->tz_cooling_updated = FALSE;  in acpi_tz_cpufreq_restore()
1044     struct cf_level *levels;  in acpi_tz_cpufreq_update()  local
1047     levels = malloc(CPUFREQ_MAX_LEVELS * sizeof(*levels), M_TEMP, M_NOWAIT);  in acpi_tz_cpufreq_update()
1048     if (levels == NULL)  in acpi_tz_cpufreq_update()
1061     error = CPUFREQ_GET(dev, &levels[0]);  in acpi_tz_cpufreq_update()
1064     freq = levels[0].total_set.freq;  in acpi_tz_cpufreq_update()
1066     /* Get the current available frequency levels. */  in acpi_tz_cpufreq_update()
1068     error = CPUFREQ_LEVELS(dev, levels, &num_levels);  in acpi_tz_cpufreq_update()
1076     perf = 100 * freq / levels[0].total_set.freq - req;  in acpi_tz_cpufreq_update()
1081     desired_freq = levels[0].total_set.freq * perf / 100;  in acpi_tz_cpufreq_update()
1086 	    if (levels[i].total_set.freq <= desired_freq)  in acpi_tz_cpufreq_update()
1091 	    i--;  in acpi_tz_cpufreq_update()
1094 	if (!sc->tz_cooling_updated) {  in acpi_tz_cpufreq_update()
1095 	    sc->tz_cooling_active = FALSE;  in acpi_tz_cpufreq_update()
1100 	if (desired_freq > sc->tz_cooling_saved_freq)  in acpi_tz_cpufreq_update()
1101 	    desired_freq = sc->tz_cooling_saved_freq;  in acpi_tz_cpufreq_update()
1104 	for (i = num_levels - 1; i >= 0; i--)  in acpi_tz_cpufreq_update()
1105 	    if (levels[i].total_set.freq >= desired_freq)  in acpi_tz_cpufreq_update()
1109 	if (i == -1)  in acpi_tz_cpufreq_update()
1113 	if (i == 0 || desired_freq == sc->tz_cooling_saved_freq) {  in acpi_tz_cpufreq_update()
1116 		sc->tz_cooling_active = FALSE;  in acpi_tz_cpufreq_update()
1122     if (levels[i].total_set.freq != freq) {  in acpi_tz_cpufreq_update()
1123 	ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),  in acpi_tz_cpufreq_update()
1126 	    TZ_KELVTOC(sc->tz_temperature),  in acpi_tz_cpufreq_update()
1127 	    (freq > levels[i].total_set.freq) ? "de" : "in",  in acpi_tz_cpufreq_update()
1128 	    freq, levels[i].total_set.freq);  in acpi_tz_cpufreq_update()
1129 	error = CPUFREQ_SET(dev, &levels[i], CPUFREQ_PRIO_KERN);  in acpi_tz_cpufreq_update()
1130 	if (error == 0 && !sc->tz_cooling_updated) {  in acpi_tz_cpufreq_update()
1131 	    sc->tz_cooling_saved_freq = freq;  in acpi_tz_cpufreq_update()
1132 	    sc->tz_cooling_updated = TRUE;  in acpi_tz_cpufreq_update()
1137     if (levels)  in acpi_tz_cpufreq_update()
1138 	free(levels, M_TEMP);  in acpi_tz_cpufreq_update()
1143  * Passive cooling thread; monitors current temperature according to the
1144  * cooling interval and calculates whether to scale back CPU frequency.
1156     prev_temp = sc->tz_temperature;  in acpi_tz_cooling_thread()
1157     while (sc->tz_cooling_enabled) {  in acpi_tz_cooling_thread()
1158 	if (sc->tz_cooling_active)  in acpi_tz_cooling_thread()
1160 	curr_temp = sc->tz_temperature;  in acpi_tz_cooling_thread()
1161 	if (curr_temp >= sc->tz_zone.psv)  in acpi_tz_cooling_thread()
1162 	    sc->tz_cooling_active = TRUE;  in acpi_tz_cooling_thread()
1163 	if (sc->tz_cooling_active) {  in acpi_tz_cooling_thread()
1164 	    perf = sc->tz_zone.tc1 * (curr_temp - prev_temp) +  in acpi_tz_cooling_thread()
1165 		   sc->tz_zone.tc2 * (curr_temp - sc->tz_zone.psv);  in acpi_tz_cooling_thread()
1173 		 * active, disable cooling.  in acpi_tz_cooling_thread()
1176 		    device_printf(sc->tz_dev,  in acpi_tz_cooling_thread()
1177 			"failed to set new freq, disabling passive cooling\n");  in acpi_tz_cooling_thread()
1178 		    sc->tz_cooling_enabled = FALSE;  in acpi_tz_cooling_thread()
1183 	tsleep(&sc->tz_cooling_proc, PZERO, "cooling",  in acpi_tz_cooling_thread()
1184 	    hz * sc->tz_zone.tsp / 10);  in acpi_tz_cooling_thread()
1186     if (sc->tz_cooling_active) {  in acpi_tz_cooling_thread()
1188 	sc->tz_cooling_active = FALSE;  in acpi_tz_cooling_thread()
1190     sc->tz_cooling_proc = NULL;  in acpi_tz_cooling_thread()
1192     sc->tz_cooling_proc_running = FALSE;  in acpi_tz_cooling_thread()
1198  * TODO: We ignore _PSL (list of cooling devices) since cpufreq enumerates
1200  * reference non-CPU devices so we may want to support it then.
1205     return (sc->tz_zone.tc1 != -1 && sc->tz_zone.tc2 != -1 &&  in acpi_tz_cooling_is_available()
1206 	sc->tz_zone.tsp != -1 && sc->tz_zone.tsp != 0 &&  in acpi_tz_cooling_is_available()
1207 	sc->tz_zone.psv != -1);  in acpi_tz_cooling_is_available()
1216     if (sc->tz_cooling_proc_running) {  in acpi_tz_cooling_thread_start()
1220     sc->tz_cooling_proc_running = TRUE;  in acpi_tz_cooling_thread_start()
1223     if (sc->tz_cooling_proc == NULL) {  in acpi_tz_cooling_thread_start()
1225 	    &sc->tz_cooling_proc, RFHIGHPID, 0, "acpi_cooling%d",  in acpi_tz_cooling_thread_start()
1226 	    device_get_unit(sc->tz_dev));  in acpi_tz_cooling_thread_start()
1228 	    device_printf(sc->tz_dev, "could not create thread - %d", error);  in acpi_tz_cooling_thread_start()
1230 	    sc->tz_cooling_proc_running = FALSE;  in acpi_tz_cooling_thread_start()