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"
29 #include "nouveau_gpio.h"
32 #include <linux/acpi.h>
34 #include <linux/power_supply.h>
35 #include <linux/hwmon.h>
36 #include <linux/hwmon-sysfs.h>
39 nouveau_pwmfan_get(struct drm_device *dev)
41 struct drm_nouveau_private *dev_priv = dev->dev_private;
42 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
43 struct gpio_func gpio;
50 ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
52 ret = pm->pwm_get(dev, gpio.line, &divs, &duty);
54 divs = max(divs, duty);
55 if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
57 return (duty * 100) / divs;
60 return nouveau_gpio_func_get(dev, gpio.func) * 100;
67 nouveau_pwmfan_set(struct drm_device *dev, int percent)
69 struct drm_nouveau_private *dev_priv = dev->dev_private;
70 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
71 struct gpio_func gpio;
78 ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
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 || (gpio.log[0] & 1))
92 return pm->pwm_set(dev, gpio.line, divs, duty);
99 nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl,
100 struct nouveau_pm_level *a, struct nouveau_pm_level *b)
102 struct drm_nouveau_private *dev_priv = dev->dev_private;
103 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
106 /*XXX: not on all boards, we should control based on temperature
107 * on recent boards.. or maybe on some other factor we don't
110 if (a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) {
111 ret = nouveau_pwmfan_set(dev, perflvl->fanspeed);
112 if (ret && ret != -ENODEV) {
113 NV_ERROR(dev, "fanspeed set failed: %d\n", ret);
118 if (pm->voltage.supported && pm->voltage_set) {
119 if (perflvl->volt_min && b->volt_min > a->volt_min) {
120 ret = pm->voltage_set(dev, perflvl->volt_min);
122 NV_ERROR(dev, "voltage set failed: %d\n", ret);
132 nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
134 struct drm_nouveau_private *dev_priv = dev->dev_private;
135 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
139 if (perflvl == pm->cur)
142 ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl);
146 state = pm->clocks_pre(dev, perflvl);
148 return PTR_ERR(state);
149 pm->clocks_set(dev, state);
151 ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
160 nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
162 struct drm_nouveau_private *dev_priv = dev->dev_private;
163 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
164 struct nouveau_pm_level *perflvl = NULL;
166 /* safety precaution, for now */
167 if (nouveau_perflvl_wr != 7777)
170 if (!strncmp(profile, "boot", 4))
173 int pl = simple_strtol(profile, NULL, 10);
176 for (i = 0; i < pm->nr_perflvl; i++) {
177 if (pm->perflvl[i].id == pl) {
178 perflvl = &pm->perflvl[i];
187 NV_INFO(dev, "setting performance level: %s\n", profile);
188 return nouveau_pm_perflvl_set(dev, perflvl);
192 nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
194 struct drm_nouveau_private *dev_priv = dev->dev_private;
195 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
198 memset(perflvl, 0, sizeof(*perflvl));
200 ret = pm->clocks_get(dev, perflvl);
204 if (pm->voltage.supported && pm->voltage_get) {
205 ret = pm->voltage_get(dev);
207 perflvl->volt_min = ret;
208 perflvl->volt_max = ret;
212 ret = nouveau_pwmfan_get(dev);
214 perflvl->fanspeed = ret;
220 nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
222 char c[16], s[16], v[32], f[16], t[16], m[16];
226 snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000);
230 snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
234 snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000);
237 if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) {
238 snprintf(v, sizeof(v), " voltage %dmV-%dmV",
239 perflvl->volt_min / 1000, perflvl->volt_max / 1000);
241 if (perflvl->volt_min) {
242 snprintf(v, sizeof(v), " voltage %dmV",
243 perflvl->volt_min / 1000);
247 if (perflvl->fanspeed)
248 snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
252 snprintf(t, sizeof(t), " timing %d", perflvl->timing->id);
254 snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f);
258 nouveau_pm_get_perflvl_info(struct device *d,
259 struct device_attribute *a, char *buf)
261 struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a;
265 snprintf(ptr, len, "%d:", perflvl->id);
269 nouveau_pm_perflvl_info(perflvl, ptr, len);
274 nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
276 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
277 struct drm_nouveau_private *dev_priv = dev->dev_private;
278 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
279 struct nouveau_pm_level cur;
280 int len = PAGE_SIZE, ret;
284 snprintf(ptr, len, "setting: boot\n");
285 else if (pm->cur == &pm->boot)
286 snprintf(ptr, len, "setting: boot\nc:");
288 snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id);
292 ret = nouveau_pm_perflvl_get(dev, &cur);
294 nouveau_pm_perflvl_info(&cur, ptr, len);
299 nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
300 const char *buf, size_t count)
302 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
305 ret = nouveau_pm_profile_set(dev, buf);
311 static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
312 nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
315 nouveau_sysfs_init(struct drm_device *dev)
317 struct drm_nouveau_private *dev_priv = dev->dev_private;
318 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
319 struct device *d = &dev->pdev->dev;
322 ret = device_create_file(d, &dev_attr_performance_level);
326 for (i = 0; i < pm->nr_perflvl; i++) {
327 struct nouveau_pm_level *perflvl = &pm->perflvl[i];
329 perflvl->dev_attr.attr.name = perflvl->name;
330 perflvl->dev_attr.attr.mode = S_IRUGO;
331 perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
332 perflvl->dev_attr.store = NULL;
333 sysfs_attr_init(&perflvl->dev_attr.attr);
335 ret = device_create_file(d, &perflvl->dev_attr);
337 NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n",
339 perflvl->dev_attr.attr.name = NULL;
340 nouveau_pm_fini(dev);
349 nouveau_sysfs_fini(struct drm_device *dev)
351 struct drm_nouveau_private *dev_priv = dev->dev_private;
352 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
353 struct device *d = &dev->pdev->dev;
356 device_remove_file(d, &dev_attr_performance_level);
357 for (i = 0; i < pm->nr_perflvl; i++) {
358 struct nouveau_pm_level *pl = &pm->perflvl[i];
360 if (!pl->dev_attr.attr.name)
363 device_remove_file(d, &pl->dev_attr);
367 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
369 nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
371 struct drm_device *dev = dev_get_drvdata(d);
372 struct drm_nouveau_private *dev_priv = dev->dev_private;
373 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
375 return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000);
377 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
381 nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf)
383 struct drm_device *dev = dev_get_drvdata(d);
384 struct drm_nouveau_private *dev_priv = dev->dev_private;
385 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
386 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
388 return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000);
391 nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
392 const char *buf, size_t count)
394 struct drm_device *dev = dev_get_drvdata(d);
395 struct drm_nouveau_private *dev_priv = dev->dev_private;
396 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
397 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
400 if (strict_strtol(buf, 10, &value) == -EINVAL)
403 temp->down_clock = value/1000;
405 nouveau_temp_safety_checks(dev);
409 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
410 nouveau_hwmon_set_max_temp,
414 nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a,
417 struct drm_device *dev = dev_get_drvdata(d);
418 struct drm_nouveau_private *dev_priv = dev->dev_private;
419 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
420 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
422 return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000);
425 nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
429 struct drm_device *dev = dev_get_drvdata(d);
430 struct drm_nouveau_private *dev_priv = dev->dev_private;
431 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
432 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
435 if (strict_strtol(buf, 10, &value) == -EINVAL)
438 temp->critical = value/1000;
440 nouveau_temp_safety_checks(dev);
444 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
445 nouveau_hwmon_critical_temp,
446 nouveau_hwmon_set_critical_temp,
449 static ssize_t nouveau_hwmon_show_name(struct device *dev,
450 struct device_attribute *attr,
453 return sprintf(buf, "nouveau\n");
455 static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
457 static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
458 struct device_attribute *attr,
461 return sprintf(buf, "1000\n");
463 static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
464 nouveau_hwmon_show_update_rate,
468 nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
471 struct drm_device *dev = dev_get_drvdata(d);
472 struct drm_nouveau_private *dev_priv = dev->dev_private;
473 struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
474 struct gpio_func gpio;
475 u32 cycles, cur, prev;
479 ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio);
483 /* Monitor the GPIO input 0x3b for 250ms.
484 * When the fan spins, it changes the value of GPIO FAN_SENSE.
485 * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation.
487 start = ptimer->read(dev);
488 prev = nouveau_gpio_sense(dev, 0, gpio.line);
491 cur = nouveau_gpio_sense(dev, 0, gpio.line);
497 usleep_range(500, 1000); /* supports 0 < rpm < 7500 */
498 } while (ptimer->read(dev) - start < 250000000);
500 /* interpolate to get rpm */
501 return sprintf(buf, "%i\n", cycles / 4 * 4 * 60);
503 static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input,
507 nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf)
509 struct drm_device *dev = dev_get_drvdata(d);
512 ret = nouveau_pwmfan_get(dev);
516 return sprintf(buf, "%i\n", ret);
520 nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a,
521 const char *buf, size_t count)
523 struct drm_device *dev = dev_get_drvdata(d);
524 struct drm_nouveau_private *dev_priv = dev->dev_private;
525 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
529 if (nouveau_perflvl_wr != 7777)
532 if (strict_strtol(buf, 10, &value) == -EINVAL)
535 if (value < pm->fan.min_duty)
536 value = pm->fan.min_duty;
537 if (value > pm->fan.max_duty)
538 value = pm->fan.max_duty;
540 ret = nouveau_pwmfan_set(dev, value);
547 static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR,
548 nouveau_hwmon_get_pwm0,
549 nouveau_hwmon_set_pwm0, 0);
552 nouveau_hwmon_get_pwm0_min(struct device *d,
553 struct device_attribute *a, char *buf)
555 struct drm_device *dev = dev_get_drvdata(d);
556 struct drm_nouveau_private *dev_priv = dev->dev_private;
557 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
559 return sprintf(buf, "%i\n", pm->fan.min_duty);
563 nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a,
564 const char *buf, size_t count)
566 struct drm_device *dev = dev_get_drvdata(d);
567 struct drm_nouveau_private *dev_priv = dev->dev_private;
568 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
571 if (strict_strtol(buf, 10, &value) == -EINVAL)
577 if (pm->fan.max_duty - value < 10)
578 value = pm->fan.max_duty - 10;
581 pm->fan.min_duty = 10;
583 pm->fan.min_duty = value;
588 static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR,
589 nouveau_hwmon_get_pwm0_min,
590 nouveau_hwmon_set_pwm0_min, 0);
593 nouveau_hwmon_get_pwm0_max(struct device *d,
594 struct device_attribute *a, char *buf)
596 struct drm_device *dev = dev_get_drvdata(d);
597 struct drm_nouveau_private *dev_priv = dev->dev_private;
598 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
600 return sprintf(buf, "%i\n", pm->fan.max_duty);
604 nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a,
605 const char *buf, size_t count)
607 struct drm_device *dev = dev_get_drvdata(d);
608 struct drm_nouveau_private *dev_priv = dev->dev_private;
609 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
612 if (strict_strtol(buf, 10, &value) == -EINVAL)
618 if (value - pm->fan.min_duty < 10)
619 value = pm->fan.min_duty + 10;
622 pm->fan.max_duty = 100;
624 pm->fan.max_duty = value;
629 static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR,
630 nouveau_hwmon_get_pwm0_max,
631 nouveau_hwmon_set_pwm0_max, 0);
633 static struct attribute *hwmon_attributes[] = {
634 &sensor_dev_attr_temp1_input.dev_attr.attr,
635 &sensor_dev_attr_temp1_max.dev_attr.attr,
636 &sensor_dev_attr_temp1_crit.dev_attr.attr,
637 &sensor_dev_attr_name.dev_attr.attr,
638 &sensor_dev_attr_update_rate.dev_attr.attr,
641 static struct attribute *hwmon_fan_rpm_attributes[] = {
642 &sensor_dev_attr_fan0_input.dev_attr.attr,
645 static struct attribute *hwmon_pwm_fan_attributes[] = {
646 &sensor_dev_attr_pwm0.dev_attr.attr,
647 &sensor_dev_attr_pwm0_min.dev_attr.attr,
648 &sensor_dev_attr_pwm0_max.dev_attr.attr,
652 static const struct attribute_group hwmon_attrgroup = {
653 .attrs = hwmon_attributes,
655 static const struct attribute_group hwmon_fan_rpm_attrgroup = {
656 .attrs = hwmon_fan_rpm_attributes,
658 static const struct attribute_group hwmon_pwm_fan_attrgroup = {
659 .attrs = hwmon_pwm_fan_attributes,
664 nouveau_hwmon_init(struct drm_device *dev)
666 struct drm_nouveau_private *dev_priv = dev->dev_private;
667 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
668 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
669 struct device *hwmon_dev;
675 hwmon_dev = hwmon_device_register(&dev->pdev->dev);
676 if (IS_ERR(hwmon_dev)) {
677 ret = PTR_ERR(hwmon_dev);
679 "Unable to register hwmon device: %d\n", ret);
682 dev_set_drvdata(hwmon_dev, dev);
684 /* default sysfs entries */
685 ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
691 /* if the card has a pwm fan */
692 /*XXX: incorrect, need better detection for this, some boards have
693 * the gpio entries for pwm fan control even when there's no
694 * actual fan connected to it... therm table? */
695 if (nouveau_pwmfan_get(dev) >= 0) {
696 ret = sysfs_create_group(&dev->pdev->dev.kobj,
697 &hwmon_pwm_fan_attrgroup);
702 /* if the card can read the fan rpm */
703 if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) {
704 ret = sysfs_create_group(&dev->pdev->dev.kobj,
705 &hwmon_fan_rpm_attrgroup);
710 pm->hwmon = hwmon_dev;
715 NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret);
716 hwmon_device_unregister(hwmon_dev);
726 nouveau_hwmon_fini(struct drm_device *dev)
728 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
729 struct drm_nouveau_private *dev_priv = dev->dev_private;
730 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
733 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
734 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_pwm_fan_attrgroup);
735 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_fan_rpm_attrgroup);
737 hwmon_device_unregister(pm->hwmon);
742 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
744 nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data)
746 struct drm_nouveau_private *dev_priv =
747 container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb);
748 struct drm_device *dev = dev_priv->dev;
749 struct acpi_bus_event *entry = (struct acpi_bus_event *)data;
751 if (strcmp(entry->device_class, "ac_adapter") == 0) {
752 bool ac = power_supply_is_system_supplied();
754 NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC");
762 nouveau_pm_init(struct drm_device *dev)
764 struct drm_nouveau_private *dev_priv = dev->dev_private;
765 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
769 nouveau_mem_timing_init(dev);
770 nouveau_volt_init(dev);
771 nouveau_perf_init(dev);
772 nouveau_temp_init(dev);
774 NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
775 for (i = 0; i < pm->nr_perflvl; i++) {
776 nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
777 NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info);
780 /* determine current ("boot") performance level */
781 ret = nouveau_pm_perflvl_get(dev, &pm->boot);
783 strncpy(pm->boot.name, "boot", 4);
786 nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
787 NV_INFO(dev, "c:%s", info);
790 /* switch performance levels now if requested */
791 if (nouveau_perflvl != NULL) {
792 ret = nouveau_pm_profile_set(dev, nouveau_perflvl);
794 NV_ERROR(dev, "error setting perflvl \"%s\": %d\n",
795 nouveau_perflvl, ret);
799 nouveau_sysfs_init(dev);
800 nouveau_hwmon_init(dev);
801 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
802 pm->acpi_nb.notifier_call = nouveau_pm_acpi_event;
803 register_acpi_notifier(&pm->acpi_nb);
810 nouveau_pm_fini(struct drm_device *dev)
812 struct drm_nouveau_private *dev_priv = dev->dev_private;
813 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
815 if (pm->cur != &pm->boot)
816 nouveau_pm_perflvl_set(dev, &pm->boot);
818 nouveau_temp_fini(dev);
819 nouveau_perf_fini(dev);
820 nouveau_volt_fini(dev);
821 nouveau_mem_timing_fini(dev);
823 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
824 unregister_acpi_notifier(&pm->acpi_nb);
826 nouveau_hwmon_fini(dev);
827 nouveau_sysfs_fini(dev);
831 nouveau_pm_resume(struct drm_device *dev)
833 struct drm_nouveau_private *dev_priv = dev->dev_private;
834 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
835 struct nouveau_pm_level *perflvl;
837 if (!pm->cur || pm->cur == &pm->boot)
842 nouveau_pm_perflvl_set(dev, perflvl);