2 * Copyright 2010 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
27 #include "nouveau_drv.h"
28 #include "nouveau_pm.h"
31 #include <linux/acpi.h>
33 #include <linux/power_supply.h>
34 #include <linux/hwmon.h>
35 #include <linux/hwmon-sysfs.h>
38 nouveau_pwmfan_get(struct drm_device *dev)
40 struct drm_nouveau_private *dev_priv = dev->dev_private;
41 struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
42 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
43 struct dcb_gpio_entry *gpio = NULL;
50 gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_PWM_FAN);
52 ret = pm->pwm_get(dev, gpio, &divs, &duty);
54 divs = max(divs, duty);
55 if (dev_priv->card_type <= NV_40 ||
58 return (duty * 100) / divs;
61 return pgpio->get(dev, gpio->tag) * 100;
68 nouveau_pwmfan_set(struct drm_device *dev, int percent)
70 struct drm_nouveau_private *dev_priv = dev->dev_private;
71 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
72 struct dcb_gpio_entry *gpio;
78 gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_PWM_FAN);
80 divs = pm->pwm_divisor;
81 if (pm->fan.pwm_freq) {
82 /*XXX: PNVIO clock more than likely... */
83 divs = 135000 / pm->fan.pwm_freq;
84 if (dev_priv->chipset < 0xa3)
88 duty = ((divs * percent) + 99) / 100;
89 if (dev_priv->card_type <= NV_40 ||
93 return pm->pwm_set(dev, gpio, divs, duty);
100 nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl,
101 struct nouveau_pm_level *a, struct nouveau_pm_level *b)
103 struct drm_nouveau_private *dev_priv = dev->dev_private;
104 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
107 /*XXX: not on all boards, we should control based on temperature
108 * on recent boards.. or maybe on some other factor we don't
111 if (a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) {
112 ret = nouveau_pwmfan_set(dev, perflvl->fanspeed);
113 if (ret && ret != -ENODEV) {
114 NV_ERROR(dev, "fanspeed set failed: %d\n", ret);
119 if (pm->voltage.supported && pm->voltage_set) {
120 if (perflvl->volt_min && b->volt_min > a->volt_min) {
121 ret = pm->voltage_set(dev, perflvl->volt_min);
123 NV_ERROR(dev, "voltage set failed: %d\n", ret);
133 nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
135 struct drm_nouveau_private *dev_priv = dev->dev_private;
136 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
140 if (perflvl == pm->cur)
143 ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl);
147 state = pm->clocks_pre(dev, perflvl);
149 return PTR_ERR(state);
150 pm->clocks_set(dev, state);
152 ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
161 nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
163 struct drm_nouveau_private *dev_priv = dev->dev_private;
164 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
165 struct nouveau_pm_level *perflvl = NULL;
167 /* safety precaution, for now */
168 if (nouveau_perflvl_wr != 7777)
171 if (!strncmp(profile, "boot", 4))
174 int pl = simple_strtol(profile, NULL, 10);
177 for (i = 0; i < pm->nr_perflvl; i++) {
178 if (pm->perflvl[i].id == pl) {
179 perflvl = &pm->perflvl[i];
188 NV_INFO(dev, "setting performance level: %s\n", profile);
189 return nouveau_pm_perflvl_set(dev, perflvl);
193 nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
195 struct drm_nouveau_private *dev_priv = dev->dev_private;
196 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
199 memset(perflvl, 0, sizeof(*perflvl));
201 ret = pm->clocks_get(dev, perflvl);
205 if (pm->voltage.supported && pm->voltage_get) {
206 ret = pm->voltage_get(dev);
208 perflvl->volt_min = ret;
209 perflvl->volt_max = ret;
213 ret = nouveau_pwmfan_get(dev);
215 perflvl->fanspeed = ret;
221 nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
223 char c[16], s[16], v[32], f[16], t[16], m[16];
227 snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000);
231 snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
235 snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000);
238 if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) {
239 snprintf(v, sizeof(v), " voltage %dmV-%dmV",
240 perflvl->volt_min / 1000, perflvl->volt_max / 1000);
242 if (perflvl->volt_min) {
243 snprintf(v, sizeof(v), " voltage %dmV",
244 perflvl->volt_min / 1000);
248 if (perflvl->fanspeed)
249 snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
253 snprintf(t, sizeof(t), " timing %d", perflvl->timing->id);
255 snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f);
259 nouveau_pm_get_perflvl_info(struct device *d,
260 struct device_attribute *a, char *buf)
262 struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a;
266 snprintf(ptr, len, "%d:", perflvl->id);
270 nouveau_pm_perflvl_info(perflvl, ptr, len);
275 nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
277 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
278 struct drm_nouveau_private *dev_priv = dev->dev_private;
279 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
280 struct nouveau_pm_level cur;
281 int len = PAGE_SIZE, ret;
285 snprintf(ptr, len, "setting: boot\n");
286 else if (pm->cur == &pm->boot)
287 snprintf(ptr, len, "setting: boot\nc:");
289 snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id);
293 ret = nouveau_pm_perflvl_get(dev, &cur);
295 nouveau_pm_perflvl_info(&cur, ptr, len);
300 nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
301 const char *buf, size_t count)
303 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
306 ret = nouveau_pm_profile_set(dev, buf);
312 static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
313 nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
316 nouveau_sysfs_init(struct drm_device *dev)
318 struct drm_nouveau_private *dev_priv = dev->dev_private;
319 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
320 struct device *d = &dev->pdev->dev;
323 ret = device_create_file(d, &dev_attr_performance_level);
327 for (i = 0; i < pm->nr_perflvl; i++) {
328 struct nouveau_pm_level *perflvl = &pm->perflvl[i];
330 perflvl->dev_attr.attr.name = perflvl->name;
331 perflvl->dev_attr.attr.mode = S_IRUGO;
332 perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
333 perflvl->dev_attr.store = NULL;
334 sysfs_attr_init(&perflvl->dev_attr.attr);
336 ret = device_create_file(d, &perflvl->dev_attr);
338 NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n",
340 perflvl->dev_attr.attr.name = NULL;
341 nouveau_pm_fini(dev);
350 nouveau_sysfs_fini(struct drm_device *dev)
352 struct drm_nouveau_private *dev_priv = dev->dev_private;
353 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
354 struct device *d = &dev->pdev->dev;
357 device_remove_file(d, &dev_attr_performance_level);
358 for (i = 0; i < pm->nr_perflvl; i++) {
359 struct nouveau_pm_level *pl = &pm->perflvl[i];
361 if (!pl->dev_attr.attr.name)
364 device_remove_file(d, &pl->dev_attr);
368 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
370 nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
372 struct drm_device *dev = dev_get_drvdata(d);
373 struct drm_nouveau_private *dev_priv = dev->dev_private;
374 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
376 return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000);
378 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
382 nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf)
384 struct drm_device *dev = dev_get_drvdata(d);
385 struct drm_nouveau_private *dev_priv = dev->dev_private;
386 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
387 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
389 return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000);
392 nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
393 const char *buf, size_t count)
395 struct drm_device *dev = dev_get_drvdata(d);
396 struct drm_nouveau_private *dev_priv = dev->dev_private;
397 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
398 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
401 if (strict_strtol(buf, 10, &value) == -EINVAL)
404 temp->down_clock = value/1000;
406 nouveau_temp_safety_checks(dev);
410 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
411 nouveau_hwmon_set_max_temp,
415 nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a,
418 struct drm_device *dev = dev_get_drvdata(d);
419 struct drm_nouveau_private *dev_priv = dev->dev_private;
420 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
421 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
423 return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000);
426 nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
430 struct drm_device *dev = dev_get_drvdata(d);
431 struct drm_nouveau_private *dev_priv = dev->dev_private;
432 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
433 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
436 if (strict_strtol(buf, 10, &value) == -EINVAL)
439 temp->critical = value/1000;
441 nouveau_temp_safety_checks(dev);
445 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
446 nouveau_hwmon_critical_temp,
447 nouveau_hwmon_set_critical_temp,
450 static ssize_t nouveau_hwmon_show_name(struct device *dev,
451 struct device_attribute *attr,
454 return sprintf(buf, "nouveau\n");
456 static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
458 static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
459 struct device_attribute *attr,
462 return sprintf(buf, "1000\n");
464 static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
465 nouveau_hwmon_show_update_rate,
469 nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
472 struct drm_device *dev = dev_get_drvdata(d);
473 struct drm_nouveau_private *dev_priv = dev->dev_private;
474 struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
475 struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
476 struct dcb_gpio_entry *gpio;
477 u32 cycles, cur, prev;
480 gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE);
484 /* Monitor the GPIO input 0x3b for 250ms.
485 * When the fan spins, it changes the value of GPIO FAN_SENSE.
486 * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation.
488 start = ptimer->read(dev);
489 prev = pgpio->get(dev, DCB_GPIO_FAN_SENSE);
492 cur = pgpio->get(dev, DCB_GPIO_FAN_SENSE);
498 usleep_range(500, 1000); /* supports 0 < rpm < 7500 */
499 } while (ptimer->read(dev) - start < 250000000);
501 /* interpolate to get rpm */
502 return sprintf(buf, "%i\n", cycles / 4 * 4 * 60);
504 static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input,
508 nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf)
510 struct drm_device *dev = dev_get_drvdata(d);
513 ret = nouveau_pwmfan_get(dev);
517 return sprintf(buf, "%i\n", ret);
521 nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a,
522 const char *buf, size_t count)
524 struct drm_device *dev = dev_get_drvdata(d);
525 struct drm_nouveau_private *dev_priv = dev->dev_private;
526 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
530 if (nouveau_perflvl_wr != 7777)
533 if (strict_strtol(buf, 10, &value) == -EINVAL)
536 if (value < pm->fan.min_duty)
537 value = pm->fan.min_duty;
538 if (value > pm->fan.max_duty)
539 value = pm->fan.max_duty;
541 ret = nouveau_pwmfan_set(dev, value);
548 static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR,
549 nouveau_hwmon_get_pwm0,
550 nouveau_hwmon_set_pwm0, 0);
553 nouveau_hwmon_get_pwm0_min(struct device *d,
554 struct device_attribute *a, char *buf)
556 struct drm_device *dev = dev_get_drvdata(d);
557 struct drm_nouveau_private *dev_priv = dev->dev_private;
558 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
560 return sprintf(buf, "%i\n", pm->fan.min_duty);
564 nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a,
565 const char *buf, size_t count)
567 struct drm_device *dev = dev_get_drvdata(d);
568 struct drm_nouveau_private *dev_priv = dev->dev_private;
569 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
572 if (strict_strtol(buf, 10, &value) == -EINVAL)
578 if (pm->fan.max_duty - value < 10)
579 value = pm->fan.max_duty - 10;
582 pm->fan.min_duty = 10;
584 pm->fan.min_duty = value;
589 static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR,
590 nouveau_hwmon_get_pwm0_min,
591 nouveau_hwmon_set_pwm0_min, 0);
594 nouveau_hwmon_get_pwm0_max(struct device *d,
595 struct device_attribute *a, char *buf)
597 struct drm_device *dev = dev_get_drvdata(d);
598 struct drm_nouveau_private *dev_priv = dev->dev_private;
599 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
601 return sprintf(buf, "%i\n", pm->fan.max_duty);
605 nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a,
606 const char *buf, size_t count)
608 struct drm_device *dev = dev_get_drvdata(d);
609 struct drm_nouveau_private *dev_priv = dev->dev_private;
610 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
613 if (strict_strtol(buf, 10, &value) == -EINVAL)
619 if (value - pm->fan.min_duty < 10)
620 value = pm->fan.min_duty + 10;
623 pm->fan.max_duty = 100;
625 pm->fan.max_duty = value;
630 static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR,
631 nouveau_hwmon_get_pwm0_max,
632 nouveau_hwmon_set_pwm0_max, 0);
634 static struct attribute *hwmon_attributes[] = {
635 &sensor_dev_attr_temp1_input.dev_attr.attr,
636 &sensor_dev_attr_temp1_max.dev_attr.attr,
637 &sensor_dev_attr_temp1_crit.dev_attr.attr,
638 &sensor_dev_attr_name.dev_attr.attr,
639 &sensor_dev_attr_update_rate.dev_attr.attr,
642 static struct attribute *hwmon_fan_rpm_attributes[] = {
643 &sensor_dev_attr_fan0_input.dev_attr.attr,
646 static struct attribute *hwmon_pwm_fan_attributes[] = {
647 &sensor_dev_attr_pwm0.dev_attr.attr,
648 &sensor_dev_attr_pwm0_min.dev_attr.attr,
649 &sensor_dev_attr_pwm0_max.dev_attr.attr,
653 static const struct attribute_group hwmon_attrgroup = {
654 .attrs = hwmon_attributes,
656 static const struct attribute_group hwmon_fan_rpm_attrgroup = {
657 .attrs = hwmon_fan_rpm_attributes,
659 static const struct attribute_group hwmon_pwm_fan_attrgroup = {
660 .attrs = hwmon_pwm_fan_attributes,
665 nouveau_hwmon_init(struct drm_device *dev)
667 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
668 struct drm_nouveau_private *dev_priv = dev->dev_private;
669 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
670 struct device *hwmon_dev;
676 hwmon_dev = hwmon_device_register(&dev->pdev->dev);
677 if (IS_ERR(hwmon_dev)) {
678 ret = PTR_ERR(hwmon_dev);
680 "Unable to register hwmon device: %d\n", ret);
683 dev_set_drvdata(hwmon_dev, dev);
685 /* default sysfs entries */
686 ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
692 /* if the card has a pwm fan */
693 /*XXX: incorrect, need better detection for this, some boards have
694 * the gpio entries for pwm fan control even when there's no
695 * actual fan connected to it... therm table? */
696 if (nouveau_pwmfan_get(dev) >= 0) {
697 ret = sysfs_create_group(&dev->pdev->dev.kobj,
698 &hwmon_pwm_fan_attrgroup);
703 /* if the card can read the fan rpm */
704 if (nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE)) {
705 ret = sysfs_create_group(&dev->pdev->dev.kobj,
706 &hwmon_fan_rpm_attrgroup);
711 pm->hwmon = hwmon_dev;
716 NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret);
717 hwmon_device_unregister(hwmon_dev);
727 nouveau_hwmon_fini(struct drm_device *dev)
729 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
730 struct drm_nouveau_private *dev_priv = dev->dev_private;
731 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
734 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
735 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_pwm_fan_attrgroup);
736 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_fan_rpm_attrgroup);
738 hwmon_device_unregister(pm->hwmon);
743 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
745 nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data)
747 struct drm_nouveau_private *dev_priv =
748 container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb);
749 struct drm_device *dev = dev_priv->dev;
750 struct acpi_bus_event *entry = (struct acpi_bus_event *)data;
752 if (strcmp(entry->device_class, "ac_adapter") == 0) {
753 bool ac = power_supply_is_system_supplied();
755 NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC");
763 nouveau_pm_init(struct drm_device *dev)
765 struct drm_nouveau_private *dev_priv = dev->dev_private;
766 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
770 nouveau_mem_timing_init(dev);
771 nouveau_volt_init(dev);
772 nouveau_perf_init(dev);
773 nouveau_temp_init(dev);
775 NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
776 for (i = 0; i < pm->nr_perflvl; i++) {
777 nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
778 NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info);
781 /* determine current ("boot") performance level */
782 ret = nouveau_pm_perflvl_get(dev, &pm->boot);
784 strncpy(pm->boot.name, "boot", 4);
787 nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
788 NV_INFO(dev, "c:%s", info);
791 /* switch performance levels now if requested */
792 if (nouveau_perflvl != NULL) {
793 ret = nouveau_pm_profile_set(dev, nouveau_perflvl);
795 NV_ERROR(dev, "error setting perflvl \"%s\": %d\n",
796 nouveau_perflvl, ret);
800 nouveau_sysfs_init(dev);
801 nouveau_hwmon_init(dev);
802 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
803 pm->acpi_nb.notifier_call = nouveau_pm_acpi_event;
804 register_acpi_notifier(&pm->acpi_nb);
811 nouveau_pm_fini(struct drm_device *dev)
813 struct drm_nouveau_private *dev_priv = dev->dev_private;
814 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
816 if (pm->cur != &pm->boot)
817 nouveau_pm_perflvl_set(dev, &pm->boot);
819 nouveau_temp_fini(dev);
820 nouveau_perf_fini(dev);
821 nouveau_volt_fini(dev);
822 nouveau_mem_timing_fini(dev);
824 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
825 unregister_acpi_notifier(&pm->acpi_nb);
827 nouveau_hwmon_fini(dev);
828 nouveau_sysfs_fini(dev);
832 nouveau_pm_resume(struct drm_device *dev)
834 struct drm_nouveau_private *dev_priv = dev->dev_private;
835 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
836 struct nouveau_pm_level *perflvl;
838 if (!pm->cur || pm->cur == &pm->boot)
843 nouveau_pm_perflvl_set(dev, perflvl);