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_clock_set(struct drm_device *dev, struct nouveau_pm_level *perflvl,
103 struct drm_nouveau_private *dev_priv = dev->dev_private;
104 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
110 pre_state = pm->clock_pre(dev, perflvl, id, khz);
111 if (IS_ERR(pre_state))
112 return PTR_ERR(pre_state);
115 pm->clock_set(dev, pre_state);
120 nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
122 struct drm_nouveau_private *dev_priv = dev->dev_private;
123 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
126 if (perflvl == pm->cur)
129 /*XXX: not on all boards, we should control based on temperature
130 * on recent boards.. or maybe on some other factor we don't
133 if (perflvl->fanspeed) {
134 ret = nouveau_pwmfan_set(dev, perflvl->fanspeed);
135 if (ret && ret != -ENODEV)
136 NV_ERROR(dev, "set fanspeed failed: %d\n", ret);
139 if (pm->voltage.supported && pm->voltage_set && perflvl->volt_min) {
140 ret = pm->voltage_set(dev, perflvl->volt_min);
142 NV_ERROR(dev, "voltage_set %d failed: %d\n",
143 perflvl->volt_min, ret);
147 if (pm->clocks_pre) {
148 void *state = pm->clocks_pre(dev, perflvl);
150 return PTR_ERR(state);
151 pm->clocks_set(dev, state);
154 nouveau_pm_clock_set(dev, perflvl, PLL_CORE, perflvl->core);
155 nouveau_pm_clock_set(dev, perflvl, PLL_SHADER, perflvl->shader);
156 nouveau_pm_clock_set(dev, perflvl, PLL_MEMORY, perflvl->memory);
157 nouveau_pm_clock_set(dev, perflvl, PLL_VDEC, perflvl->vdec);
165 nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
167 struct drm_nouveau_private *dev_priv = dev->dev_private;
168 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
169 struct nouveau_pm_level *perflvl = NULL;
171 /* safety precaution, for now */
172 if (nouveau_perflvl_wr != 7777)
175 if (!strncmp(profile, "boot", 4))
178 int pl = simple_strtol(profile, NULL, 10);
181 for (i = 0; i < pm->nr_perflvl; i++) {
182 if (pm->perflvl[i].id == pl) {
183 perflvl = &pm->perflvl[i];
192 NV_INFO(dev, "setting performance level: %s\n", profile);
193 return nouveau_pm_perflvl_set(dev, perflvl);
197 nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
199 struct drm_nouveau_private *dev_priv = dev->dev_private;
200 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
203 memset(perflvl, 0, sizeof(*perflvl));
205 if (pm->clocks_get) {
206 ret = pm->clocks_get(dev, perflvl);
211 ret = pm->clock_get(dev, PLL_CORE);
215 ret = pm->clock_get(dev, PLL_MEMORY);
217 perflvl->memory = ret;
219 ret = pm->clock_get(dev, PLL_SHADER);
221 perflvl->shader = ret;
223 ret = pm->clock_get(dev, PLL_VDEC);
228 if (pm->voltage.supported && pm->voltage_get) {
229 ret = pm->voltage_get(dev);
231 perflvl->volt_min = ret;
232 perflvl->volt_max = ret;
236 ret = nouveau_pwmfan_get(dev);
238 perflvl->fanspeed = ret;
244 nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
246 char c[16], s[16], v[32], f[16], t[16], m[16];
250 snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000);
254 snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
258 snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000);
261 if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) {
262 snprintf(v, sizeof(v), " voltage %dmV-%dmV",
263 perflvl->volt_min / 1000, perflvl->volt_max / 1000);
265 if (perflvl->volt_min) {
266 snprintf(v, sizeof(v), " voltage %dmV",
267 perflvl->volt_min / 1000);
271 if (perflvl->fanspeed)
272 snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
276 snprintf(t, sizeof(t), " timing %d", perflvl->timing->id);
278 snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f);
282 nouveau_pm_get_perflvl_info(struct device *d,
283 struct device_attribute *a, char *buf)
285 struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a;
289 snprintf(ptr, len, "%d:", perflvl->id);
293 nouveau_pm_perflvl_info(perflvl, ptr, len);
298 nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
300 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
301 struct drm_nouveau_private *dev_priv = dev->dev_private;
302 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
303 struct nouveau_pm_level cur;
304 int len = PAGE_SIZE, ret;
308 snprintf(ptr, len, "setting: boot\n");
309 else if (pm->cur == &pm->boot)
310 snprintf(ptr, len, "setting: boot\nc:");
312 snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id);
316 ret = nouveau_pm_perflvl_get(dev, &cur);
318 nouveau_pm_perflvl_info(&cur, ptr, len);
323 nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
324 const char *buf, size_t count)
326 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
329 ret = nouveau_pm_profile_set(dev, buf);
335 static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
336 nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
339 nouveau_sysfs_init(struct drm_device *dev)
341 struct drm_nouveau_private *dev_priv = dev->dev_private;
342 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
343 struct device *d = &dev->pdev->dev;
346 ret = device_create_file(d, &dev_attr_performance_level);
350 for (i = 0; i < pm->nr_perflvl; i++) {
351 struct nouveau_pm_level *perflvl = &pm->perflvl[i];
353 perflvl->dev_attr.attr.name = perflvl->name;
354 perflvl->dev_attr.attr.mode = S_IRUGO;
355 perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
356 perflvl->dev_attr.store = NULL;
357 sysfs_attr_init(&perflvl->dev_attr.attr);
359 ret = device_create_file(d, &perflvl->dev_attr);
361 NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n",
363 perflvl->dev_attr.attr.name = NULL;
364 nouveau_pm_fini(dev);
373 nouveau_sysfs_fini(struct drm_device *dev)
375 struct drm_nouveau_private *dev_priv = dev->dev_private;
376 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
377 struct device *d = &dev->pdev->dev;
380 device_remove_file(d, &dev_attr_performance_level);
381 for (i = 0; i < pm->nr_perflvl; i++) {
382 struct nouveau_pm_level *pl = &pm->perflvl[i];
384 if (!pl->dev_attr.attr.name)
387 device_remove_file(d, &pl->dev_attr);
391 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
393 nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
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;
399 return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000);
401 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
405 nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf)
407 struct drm_device *dev = dev_get_drvdata(d);
408 struct drm_nouveau_private *dev_priv = dev->dev_private;
409 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
410 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
412 return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000);
415 nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
416 const char *buf, size_t count)
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;
424 if (strict_strtol(buf, 10, &value) == -EINVAL)
427 temp->down_clock = value/1000;
429 nouveau_temp_safety_checks(dev);
433 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
434 nouveau_hwmon_set_max_temp,
438 nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a,
441 struct drm_device *dev = dev_get_drvdata(d);
442 struct drm_nouveau_private *dev_priv = dev->dev_private;
443 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
444 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
446 return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000);
449 nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
453 struct drm_device *dev = dev_get_drvdata(d);
454 struct drm_nouveau_private *dev_priv = dev->dev_private;
455 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
456 struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
459 if (strict_strtol(buf, 10, &value) == -EINVAL)
462 temp->critical = value/1000;
464 nouveau_temp_safety_checks(dev);
468 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
469 nouveau_hwmon_critical_temp,
470 nouveau_hwmon_set_critical_temp,
473 static ssize_t nouveau_hwmon_show_name(struct device *dev,
474 struct device_attribute *attr,
477 return sprintf(buf, "nouveau\n");
479 static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
481 static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
482 struct device_attribute *attr,
485 return sprintf(buf, "1000\n");
487 static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
488 nouveau_hwmon_show_update_rate,
492 nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
495 struct drm_device *dev = dev_get_drvdata(d);
496 struct drm_nouveau_private *dev_priv = dev->dev_private;
497 struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
498 struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
499 struct dcb_gpio_entry *gpio;
500 u32 cycles, cur, prev;
503 gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE);
507 /* Monitor the GPIO input 0x3b for 250ms.
508 * When the fan spins, it changes the value of GPIO FAN_SENSE.
509 * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation.
511 start = ptimer->read(dev);
512 prev = pgpio->get(dev, DCB_GPIO_FAN_SENSE);
515 cur = pgpio->get(dev, DCB_GPIO_FAN_SENSE);
521 usleep_range(500, 1000); /* supports 0 < rpm < 7500 */
522 } while (ptimer->read(dev) - start < 250000000);
524 /* interpolate to get rpm */
525 return sprintf(buf, "%i\n", cycles / 4 * 4 * 60);
527 static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input,
531 nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf)
533 struct drm_device *dev = dev_get_drvdata(d);
536 ret = nouveau_pwmfan_get(dev);
540 return sprintf(buf, "%i\n", ret);
544 nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a,
545 const char *buf, size_t count)
547 struct drm_device *dev = dev_get_drvdata(d);
548 struct drm_nouveau_private *dev_priv = dev->dev_private;
549 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
553 if (nouveau_perflvl_wr != 7777)
556 if (strict_strtol(buf, 10, &value) == -EINVAL)
559 if (value < pm->fan.min_duty)
560 value = pm->fan.min_duty;
561 if (value > pm->fan.max_duty)
562 value = pm->fan.max_duty;
564 ret = nouveau_pwmfan_set(dev, value);
571 static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR,
572 nouveau_hwmon_get_pwm0,
573 nouveau_hwmon_set_pwm0, 0);
576 nouveau_hwmon_get_pwm0_min(struct device *d,
577 struct device_attribute *a, char *buf)
579 struct drm_device *dev = dev_get_drvdata(d);
580 struct drm_nouveau_private *dev_priv = dev->dev_private;
581 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
583 return sprintf(buf, "%i\n", pm->fan.min_duty);
587 nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a,
588 const char *buf, size_t count)
590 struct drm_device *dev = dev_get_drvdata(d);
591 struct drm_nouveau_private *dev_priv = dev->dev_private;
592 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
595 if (strict_strtol(buf, 10, &value) == -EINVAL)
601 if (pm->fan.max_duty - value < 10)
602 value = pm->fan.max_duty - 10;
605 pm->fan.min_duty = 10;
607 pm->fan.min_duty = value;
612 static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR,
613 nouveau_hwmon_get_pwm0_min,
614 nouveau_hwmon_set_pwm0_min, 0);
617 nouveau_hwmon_get_pwm0_max(struct device *d,
618 struct device_attribute *a, char *buf)
620 struct drm_device *dev = dev_get_drvdata(d);
621 struct drm_nouveau_private *dev_priv = dev->dev_private;
622 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
624 return sprintf(buf, "%i\n", pm->fan.max_duty);
628 nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a,
629 const char *buf, size_t count)
631 struct drm_device *dev = dev_get_drvdata(d);
632 struct drm_nouveau_private *dev_priv = dev->dev_private;
633 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
636 if (strict_strtol(buf, 10, &value) == -EINVAL)
642 if (value - pm->fan.min_duty < 10)
643 value = pm->fan.min_duty + 10;
646 pm->fan.max_duty = 100;
648 pm->fan.max_duty = value;
653 static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR,
654 nouveau_hwmon_get_pwm0_max,
655 nouveau_hwmon_set_pwm0_max, 0);
657 static struct attribute *hwmon_attributes[] = {
658 &sensor_dev_attr_temp1_input.dev_attr.attr,
659 &sensor_dev_attr_temp1_max.dev_attr.attr,
660 &sensor_dev_attr_temp1_crit.dev_attr.attr,
661 &sensor_dev_attr_name.dev_attr.attr,
662 &sensor_dev_attr_update_rate.dev_attr.attr,
665 static struct attribute *hwmon_fan_rpm_attributes[] = {
666 &sensor_dev_attr_fan0_input.dev_attr.attr,
669 static struct attribute *hwmon_pwm_fan_attributes[] = {
670 &sensor_dev_attr_pwm0.dev_attr.attr,
671 &sensor_dev_attr_pwm0_min.dev_attr.attr,
672 &sensor_dev_attr_pwm0_max.dev_attr.attr,
676 static const struct attribute_group hwmon_attrgroup = {
677 .attrs = hwmon_attributes,
679 static const struct attribute_group hwmon_fan_rpm_attrgroup = {
680 .attrs = hwmon_fan_rpm_attributes,
682 static const struct attribute_group hwmon_pwm_fan_attrgroup = {
683 .attrs = hwmon_pwm_fan_attributes,
688 nouveau_hwmon_init(struct drm_device *dev)
690 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
691 struct drm_nouveau_private *dev_priv = dev->dev_private;
692 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
693 struct device *hwmon_dev;
699 hwmon_dev = hwmon_device_register(&dev->pdev->dev);
700 if (IS_ERR(hwmon_dev)) {
701 ret = PTR_ERR(hwmon_dev);
703 "Unable to register hwmon device: %d\n", ret);
706 dev_set_drvdata(hwmon_dev, dev);
708 /* default sysfs entries */
709 ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
715 /* if the card has a pwm fan */
716 /*XXX: incorrect, need better detection for this, some boards have
717 * the gpio entries for pwm fan control even when there's no
718 * actual fan connected to it... therm table? */
719 if (nouveau_pwmfan_get(dev) >= 0) {
720 ret = sysfs_create_group(&dev->pdev->dev.kobj,
721 &hwmon_pwm_fan_attrgroup);
726 /* if the card can read the fan rpm */
727 if (nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE)) {
728 ret = sysfs_create_group(&dev->pdev->dev.kobj,
729 &hwmon_fan_rpm_attrgroup);
734 pm->hwmon = hwmon_dev;
739 NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret);
740 hwmon_device_unregister(hwmon_dev);
750 nouveau_hwmon_fini(struct drm_device *dev)
752 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
753 struct drm_nouveau_private *dev_priv = dev->dev_private;
754 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
757 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
758 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_pwm_fan_attrgroup);
759 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_fan_rpm_attrgroup);
761 hwmon_device_unregister(pm->hwmon);
766 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
768 nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data)
770 struct drm_nouveau_private *dev_priv =
771 container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb);
772 struct drm_device *dev = dev_priv->dev;
773 struct acpi_bus_event *entry = (struct acpi_bus_event *)data;
775 if (strcmp(entry->device_class, "ac_adapter") == 0) {
776 bool ac = power_supply_is_system_supplied();
778 NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC");
786 nouveau_pm_init(struct drm_device *dev)
788 struct drm_nouveau_private *dev_priv = dev->dev_private;
789 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
793 nouveau_mem_timing_init(dev);
794 nouveau_volt_init(dev);
795 nouveau_perf_init(dev);
796 nouveau_temp_init(dev);
798 NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
799 for (i = 0; i < pm->nr_perflvl; i++) {
800 nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
801 NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info);
804 /* determine current ("boot") performance level */
805 ret = nouveau_pm_perflvl_get(dev, &pm->boot);
807 strncpy(pm->boot.name, "boot", 4);
810 nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
811 NV_INFO(dev, "c:%s", info);
814 /* switch performance levels now if requested */
815 if (nouveau_perflvl != NULL) {
816 ret = nouveau_pm_profile_set(dev, nouveau_perflvl);
818 NV_ERROR(dev, "error setting perflvl \"%s\": %d\n",
819 nouveau_perflvl, ret);
823 nouveau_sysfs_init(dev);
824 nouveau_hwmon_init(dev);
825 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
826 pm->acpi_nb.notifier_call = nouveau_pm_acpi_event;
827 register_acpi_notifier(&pm->acpi_nb);
834 nouveau_pm_fini(struct drm_device *dev)
836 struct drm_nouveau_private *dev_priv = dev->dev_private;
837 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
839 if (pm->cur != &pm->boot)
840 nouveau_pm_perflvl_set(dev, &pm->boot);
842 nouveau_temp_fini(dev);
843 nouveau_perf_fini(dev);
844 nouveau_volt_fini(dev);
845 nouveau_mem_timing_fini(dev);
847 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
848 unregister_acpi_notifier(&pm->acpi_nb);
850 nouveau_hwmon_fini(dev);
851 nouveau_sysfs_fini(dev);
855 nouveau_pm_resume(struct drm_device *dev)
857 struct drm_nouveau_private *dev_priv = dev->dev_private;
858 struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
859 struct nouveau_pm_level *perflvl;
861 if (!pm->cur || pm->cur == &pm->boot)
866 nouveau_pm_perflvl_set(dev, perflvl);