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.
26 #include <linux/acpi.h>
28 #include <linux/power_supply.h>
29 #include <linux/hwmon.h>
30 #include <linux/hwmon-sysfs.h>
34 #include "nouveau_drm.h"
35 #include "nouveau_pm.h"
37 #include <subdev/gpio.h>
38 #include <subdev/timer.h>
39 #include <subdev/therm.h>
41 MODULE_PARM_DESC(perflvl, "Performance level (default: boot)");
42 static char *nouveau_perflvl;
43 module_param_named(perflvl, nouveau_perflvl, charp, 0400);
45 MODULE_PARM_DESC(perflvl_wr, "Allow perflvl changes (warning: dangerous!)");
46 static int nouveau_perflvl_wr;
47 module_param_named(perflvl_wr, nouveau_perflvl_wr, int, 0400);
50 nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl,
51 struct nouveau_pm_level *a, struct nouveau_pm_level *b)
53 struct nouveau_drm *drm = nouveau_drm(dev);
54 struct nouveau_pm *pm = nouveau_pm(dev);
55 struct nouveau_therm *therm = nouveau_therm(drm);
58 /*XXX: not on all boards, we should control based on temperature
59 * on recent boards.. or maybe on some other factor we don't
62 if (therm && therm->fan_set &&
63 a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) {
64 ret = therm->fan_set(therm, perflvl->fanspeed);
65 if (ret && ret != -ENODEV) {
66 NV_ERROR(drm, "fanspeed set failed: %d\n", ret);
71 if (pm->voltage.supported && pm->voltage_set) {
72 if (perflvl->volt_min && b->volt_min > a->volt_min) {
73 ret = pm->voltage_set(dev, perflvl->volt_min);
75 NV_ERROR(drm, "voltage set failed: %d\n", ret);
85 nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
87 struct nouveau_pm *pm = nouveau_pm(dev);
91 if (perflvl == pm->cur)
94 ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl);
98 state = pm->clocks_pre(dev, perflvl);
100 ret = PTR_ERR(state);
103 ret = pm->clocks_set(dev, state);
107 ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
115 /* restore the fan speed and voltage before leaving */
116 nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
121 nouveau_pm_trigger(struct drm_device *dev)
123 struct nouveau_drm *drm = nouveau_drm(dev);
124 struct nouveau_timer *ptimer = nouveau_timer(drm->device);
125 struct nouveau_pm *pm = nouveau_pm(dev);
126 struct nouveau_pm_profile *profile = NULL;
127 struct nouveau_pm_level *perflvl = NULL;
130 /* select power profile based on current power source */
131 if (power_supply_is_system_supplied())
132 profile = pm->profile_ac;
134 profile = pm->profile_dc;
136 if (profile != pm->profile) {
137 pm->profile->func->fini(pm->profile);
138 pm->profile = profile;
139 pm->profile->func->init(pm->profile);
142 /* select performance level based on profile */
143 perflvl = profile->func->select(profile);
145 /* change perflvl, if necessary */
146 if (perflvl != pm->cur) {
147 u64 time0 = ptimer->read(ptimer);
149 NV_INFO(drm, "setting performance level: %d", perflvl->id);
150 ret = nouveau_pm_perflvl_set(dev, perflvl);
152 NV_INFO(drm, "> reclocking failed: %d\n\n", ret);
154 NV_INFO(drm, "> reclocking took %lluns\n\n",
155 ptimer->read(ptimer) - time0);
159 static struct nouveau_pm_profile *
160 profile_find(struct drm_device *dev, const char *string)
162 struct nouveau_pm *pm = nouveau_pm(dev);
163 struct nouveau_pm_profile *profile;
165 list_for_each_entry(profile, &pm->profiles, head) {
166 if (!strncmp(profile->name, string, sizeof(profile->name)))
174 nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
176 struct nouveau_pm *pm = nouveau_pm(dev);
177 struct nouveau_pm_profile *ac = NULL, *dc = NULL;
178 char string[16], *cur = string, *ptr;
180 /* safety precaution, for now */
181 if (nouveau_perflvl_wr != 7777)
184 strncpy(string, profile, sizeof(string));
185 string[sizeof(string) - 1] = 0;
186 if ((ptr = strchr(string, '\n')))
189 ptr = strsep(&cur, ",");
191 ac = profile_find(dev, ptr);
193 ptr = strsep(&cur, ",");
195 dc = profile_find(dev, ptr);
199 if (ac == NULL || dc == NULL)
204 nouveau_pm_trigger(dev);
209 nouveau_pm_static_dummy(struct nouveau_pm_profile *profile)
213 static struct nouveau_pm_level *
214 nouveau_pm_static_select(struct nouveau_pm_profile *profile)
216 return container_of(profile, struct nouveau_pm_level, profile);
219 const struct nouveau_pm_profile_func nouveau_pm_static_profile_func = {
220 .destroy = nouveau_pm_static_dummy,
221 .init = nouveau_pm_static_dummy,
222 .fini = nouveau_pm_static_dummy,
223 .select = nouveau_pm_static_select,
227 nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
229 struct nouveau_drm *drm = nouveau_drm(dev);
230 struct nouveau_pm *pm = nouveau_pm(dev);
231 struct nouveau_therm *therm = nouveau_therm(drm->device);
234 memset(perflvl, 0, sizeof(*perflvl));
236 if (pm->clocks_get) {
237 ret = pm->clocks_get(dev, perflvl);
242 if (pm->voltage.supported && pm->voltage_get) {
243 ret = pm->voltage_get(dev);
245 perflvl->volt_min = ret;
246 perflvl->volt_max = ret;
250 if (therm && therm->fan_get) {
251 ret = therm->fan_get(therm);
253 perflvl->fanspeed = ret;
256 nouveau_mem_timing_read(dev, &perflvl->timing);
261 nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
263 char c[16], s[16], v[32], f[16], m[16];
267 snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000);
271 snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
275 snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000);
278 if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) {
279 snprintf(v, sizeof(v), " voltage %dmV-%dmV",
280 perflvl->volt_min / 1000, perflvl->volt_max / 1000);
282 if (perflvl->volt_min) {
283 snprintf(v, sizeof(v), " voltage %dmV",
284 perflvl->volt_min / 1000);
288 if (perflvl->fanspeed)
289 snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
291 snprintf(ptr, len, "%s%s%s%s%s\n", c, s, m, v, f);
295 nouveau_pm_get_perflvl_info(struct device *d,
296 struct device_attribute *a, char *buf)
298 struct nouveau_pm_level *perflvl =
299 container_of(a, struct nouveau_pm_level, dev_attr);
303 snprintf(ptr, len, "%d:", perflvl->id);
307 nouveau_pm_perflvl_info(perflvl, ptr, len);
312 nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
314 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
315 struct nouveau_pm *pm = nouveau_pm(dev);
316 struct nouveau_pm_level cur;
317 int len = PAGE_SIZE, ret;
320 snprintf(ptr, len, "profile: %s, %s\nc:",
321 pm->profile_ac->name, pm->profile_dc->name);
325 ret = nouveau_pm_perflvl_get(dev, &cur);
327 nouveau_pm_perflvl_info(&cur, ptr, len);
332 nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
333 const char *buf, size_t count)
335 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
338 ret = nouveau_pm_profile_set(dev, buf);
344 static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
345 nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
348 nouveau_sysfs_init(struct drm_device *dev)
350 struct nouveau_drm *drm = nouveau_drm(dev);
351 struct nouveau_pm *pm = nouveau_pm(dev);
352 struct device *d = &dev->pdev->dev;
355 ret = device_create_file(d, &dev_attr_performance_level);
359 for (i = 0; i < pm->nr_perflvl; i++) {
360 struct nouveau_pm_level *perflvl = &pm->perflvl[i];
362 perflvl->dev_attr.attr.name = perflvl->name;
363 perflvl->dev_attr.attr.mode = S_IRUGO;
364 perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
365 perflvl->dev_attr.store = NULL;
366 sysfs_attr_init(&perflvl->dev_attr.attr);
368 ret = device_create_file(d, &perflvl->dev_attr);
370 NV_ERROR(drm, "failed pervlvl %d sysfs: %d\n",
372 perflvl->dev_attr.attr.name = NULL;
373 nouveau_pm_fini(dev);
382 nouveau_sysfs_fini(struct drm_device *dev)
384 struct nouveau_pm *pm = nouveau_pm(dev);
385 struct device *d = &dev->pdev->dev;
388 device_remove_file(d, &dev_attr_performance_level);
389 for (i = 0; i < pm->nr_perflvl; i++) {
390 struct nouveau_pm_level *pl = &pm->perflvl[i];
392 if (!pl->dev_attr.attr.name)
395 device_remove_file(d, &pl->dev_attr);
399 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
401 nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
403 struct drm_device *dev = dev_get_drvdata(d);
404 struct nouveau_drm *drm = nouveau_drm(dev);
405 struct nouveau_therm *therm = nouveau_therm(drm->device);
407 return snprintf(buf, PAGE_SIZE, "%d\n", therm->temp_get(therm) * 1000);
409 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
413 nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf)
415 struct drm_device *dev = dev_get_drvdata(d);
416 struct nouveau_drm *drm = nouveau_drm(dev);
417 struct nouveau_therm *therm = nouveau_therm(drm->device);
419 return snprintf(buf, PAGE_SIZE, "%d\n",
420 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_DOWN_CLK) * 1000);
423 nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
424 const char *buf, size_t count)
426 struct drm_device *dev = dev_get_drvdata(d);
427 struct nouveau_drm *drm = nouveau_drm(dev);
428 struct nouveau_therm *therm = nouveau_therm(drm->device);
431 if (kstrtol(buf, 10, &value) == -EINVAL)
434 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_DOWN_CLK, value / 1000);
438 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
439 nouveau_hwmon_set_max_temp,
443 nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a,
446 struct drm_device *dev = dev_get_drvdata(d);
447 struct nouveau_drm *drm = nouveau_drm(dev);
448 struct nouveau_therm *therm = nouveau_therm(drm->device);
450 return snprintf(buf, PAGE_SIZE, "%d\n",
451 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_CRITICAL) * 1000);
454 nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
458 struct drm_device *dev = dev_get_drvdata(d);
459 struct nouveau_drm *drm = nouveau_drm(dev);
460 struct nouveau_therm *therm = nouveau_therm(drm->device);
463 if (kstrtol(buf, 10, &value) == -EINVAL)
466 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_CRITICAL, value / 1000);
470 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
471 nouveau_hwmon_critical_temp,
472 nouveau_hwmon_set_critical_temp,
475 static ssize_t nouveau_hwmon_show_name(struct device *dev,
476 struct device_attribute *attr,
479 return sprintf(buf, "nouveau\n");
481 static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
483 static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
484 struct device_attribute *attr,
487 return sprintf(buf, "1000\n");
489 static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
490 nouveau_hwmon_show_update_rate,
494 nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
497 struct drm_device *dev = dev_get_drvdata(d);
498 struct nouveau_drm *drm = nouveau_drm(dev);
499 struct nouveau_therm *therm = nouveau_therm(drm->device);
501 return snprintf(buf, PAGE_SIZE, "%d\n", therm->fan_sense(therm));
503 static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input,
507 nouveau_hwmon_get_pwm1_enable(struct device *d,
508 struct device_attribute *a, char *buf)
510 struct drm_device *dev = dev_get_drvdata(d);
511 struct nouveau_drm *drm = nouveau_drm(dev);
512 struct nouveau_therm *therm = nouveau_therm(drm->device);
515 ret = therm->attr_get(therm, NOUVEAU_THERM_ATTR_FAN_MODE);
519 return sprintf(buf, "%i\n", ret);
523 nouveau_hwmon_set_pwm1_enable(struct device *d, struct device_attribute *a,
524 const char *buf, size_t count)
526 struct drm_device *dev = dev_get_drvdata(d);
527 struct nouveau_drm *drm = nouveau_drm(dev);
528 struct nouveau_therm *therm = nouveau_therm(drm->device);
532 if (strict_strtol(buf, 10, &value) == -EINVAL)
535 ret = therm->attr_set(therm, NOUVEAU_THERM_ATTR_FAN_MODE, value);
541 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
542 nouveau_hwmon_get_pwm1_enable,
543 nouveau_hwmon_set_pwm1_enable, 0);
546 nouveau_hwmon_get_pwm1(struct device *d, struct device_attribute *a, char *buf)
548 struct drm_device *dev = dev_get_drvdata(d);
549 struct nouveau_drm *drm = nouveau_drm(dev);
550 struct nouveau_therm *therm = nouveau_therm(drm->device);
553 ret = therm->fan_get(therm);
557 return sprintf(buf, "%i\n", ret);
561 nouveau_hwmon_set_pwm1(struct device *d, struct device_attribute *a,
562 const char *buf, size_t count)
564 struct drm_device *dev = dev_get_drvdata(d);
565 struct nouveau_drm *drm = nouveau_drm(dev);
566 struct nouveau_therm *therm = nouveau_therm(drm->device);
570 if (nouveau_perflvl_wr != 7777)
573 if (kstrtol(buf, 10, &value) == -EINVAL)
576 ret = therm->fan_set(therm, value);
583 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR,
584 nouveau_hwmon_get_pwm1,
585 nouveau_hwmon_set_pwm1, 0);
588 nouveau_hwmon_get_pwm1_min(struct device *d,
589 struct device_attribute *a, char *buf)
591 struct drm_device *dev = dev_get_drvdata(d);
592 struct nouveau_drm *drm = nouveau_drm(dev);
593 struct nouveau_therm *therm = nouveau_therm(drm->device);
596 ret = therm->attr_get(therm, NOUVEAU_THERM_ATTR_FAN_MIN_DUTY);
600 return sprintf(buf, "%i\n", ret);
604 nouveau_hwmon_set_pwm1_min(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 nouveau_drm *drm = nouveau_drm(dev);
609 struct nouveau_therm *therm = nouveau_therm(drm->device);
613 if (kstrtol(buf, 10, &value) == -EINVAL)
616 ret = therm->attr_set(therm, NOUVEAU_THERM_ATTR_FAN_MIN_DUTY, value);
623 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO | S_IWUSR,
624 nouveau_hwmon_get_pwm1_min,
625 nouveau_hwmon_set_pwm1_min, 0);
628 nouveau_hwmon_get_pwm1_max(struct device *d,
629 struct device_attribute *a, char *buf)
631 struct drm_device *dev = dev_get_drvdata(d);
632 struct nouveau_drm *drm = nouveau_drm(dev);
633 struct nouveau_therm *therm = nouveau_therm(drm->device);
636 ret = therm->attr_get(therm, NOUVEAU_THERM_ATTR_FAN_MAX_DUTY);
640 return sprintf(buf, "%i\n", ret);
644 nouveau_hwmon_set_pwm1_max(struct device *d, struct device_attribute *a,
645 const char *buf, size_t count)
647 struct drm_device *dev = dev_get_drvdata(d);
648 struct nouveau_drm *drm = nouveau_drm(dev);
649 struct nouveau_therm *therm = nouveau_therm(drm->device);
653 if (kstrtol(buf, 10, &value) == -EINVAL)
656 ret = therm->attr_set(therm, NOUVEAU_THERM_ATTR_FAN_MAX_DUTY, value);
663 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO | S_IWUSR,
664 nouveau_hwmon_get_pwm1_max,
665 nouveau_hwmon_set_pwm1_max, 0);
667 static struct attribute *hwmon_attributes[] = {
668 &sensor_dev_attr_temp1_input.dev_attr.attr,
669 &sensor_dev_attr_temp1_max.dev_attr.attr,
670 &sensor_dev_attr_temp1_crit.dev_attr.attr,
671 &sensor_dev_attr_name.dev_attr.attr,
672 &sensor_dev_attr_update_rate.dev_attr.attr,
675 static struct attribute *hwmon_fan_rpm_attributes[] = {
676 &sensor_dev_attr_fan0_input.dev_attr.attr,
679 static struct attribute *hwmon_pwm_fan_attributes[] = {
680 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
681 &sensor_dev_attr_pwm1.dev_attr.attr,
682 &sensor_dev_attr_pwm1_min.dev_attr.attr,
683 &sensor_dev_attr_pwm1_max.dev_attr.attr,
687 static const struct attribute_group hwmon_attrgroup = {
688 .attrs = hwmon_attributes,
690 static const struct attribute_group hwmon_fan_rpm_attrgroup = {
691 .attrs = hwmon_fan_rpm_attributes,
693 static const struct attribute_group hwmon_pwm_fan_attrgroup = {
694 .attrs = hwmon_pwm_fan_attributes,
699 nouveau_hwmon_init(struct drm_device *dev)
701 struct nouveau_pm *pm = nouveau_pm(dev);
702 struct nouveau_drm *drm = nouveau_drm(dev);
703 struct nouveau_therm *therm = nouveau_therm(drm->device);
705 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
706 struct device *hwmon_dev;
709 if (!therm || !therm->temp_get || !therm->attr_get ||
710 !therm->attr_set || therm->temp_get(therm) < 0)
713 hwmon_dev = hwmon_device_register(&dev->pdev->dev);
714 if (IS_ERR(hwmon_dev)) {
715 ret = PTR_ERR(hwmon_dev);
716 NV_ERROR(drm, "Unable to register hwmon device: %d\n", ret);
719 dev_set_drvdata(hwmon_dev, dev);
721 /* default sysfs entries */
722 ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
728 /* if the card has a pwm fan */
729 /*XXX: incorrect, need better detection for this, some boards have
730 * the gpio entries for pwm fan control even when there's no
731 * actual fan connected to it... therm table? */
732 if (therm->fan_get && therm->fan_get(therm) >= 0) {
733 ret = sysfs_create_group(&dev->pdev->dev.kobj,
734 &hwmon_pwm_fan_attrgroup);
739 /* if the card can read the fan rpm */
740 if (therm->fan_sense(therm) >= 0) {
741 ret = sysfs_create_group(&dev->pdev->dev.kobj,
742 &hwmon_fan_rpm_attrgroup);
747 pm->hwmon = hwmon_dev;
752 NV_ERROR(drm, "Unable to create some hwmon sysfs files: %d\n", ret);
753 hwmon_device_unregister(hwmon_dev);
763 nouveau_hwmon_fini(struct drm_device *dev)
765 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
766 struct nouveau_pm *pm = nouveau_pm(dev);
769 sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
770 sysfs_remove_group(&dev->pdev->dev.kobj,
771 &hwmon_pwm_fan_attrgroup);
772 sysfs_remove_group(&dev->pdev->dev.kobj,
773 &hwmon_fan_rpm_attrgroup);
775 hwmon_device_unregister(pm->hwmon);
780 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
782 nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data)
784 struct nouveau_pm *pm = container_of(nb, struct nouveau_pm, acpi_nb);
785 struct nouveau_drm *drm = nouveau_drm(pm->dev);
786 struct acpi_bus_event *entry = (struct acpi_bus_event *)data;
788 if (strcmp(entry->device_class, "ac_adapter") == 0) {
789 bool ac = power_supply_is_system_supplied();
791 NV_DEBUG(drm, "power supply changed: %s\n", ac ? "AC" : "DC");
792 nouveau_pm_trigger(pm->dev);
800 nouveau_pm_init(struct drm_device *dev)
802 struct nouveau_device *device = nouveau_dev(dev);
803 struct nouveau_drm *drm = nouveau_drm(dev);
804 struct nouveau_pm *pm;
808 pm = drm->pm = kzalloc(sizeof(*pm), GFP_KERNEL);
814 if (device->card_type < NV_40) {
815 pm->clocks_get = nv04_pm_clocks_get;
816 pm->clocks_pre = nv04_pm_clocks_pre;
817 pm->clocks_set = nv04_pm_clocks_set;
818 if (nouveau_gpio(drm->device)) {
819 pm->voltage_get = nouveau_voltage_gpio_get;
820 pm->voltage_set = nouveau_voltage_gpio_set;
823 if (device->card_type < NV_50) {
824 pm->clocks_get = nv40_pm_clocks_get;
825 pm->clocks_pre = nv40_pm_clocks_pre;
826 pm->clocks_set = nv40_pm_clocks_set;
827 pm->voltage_get = nouveau_voltage_gpio_get;
828 pm->voltage_set = nouveau_voltage_gpio_set;
830 if (device->card_type < NV_C0) {
831 if (device->chipset < 0xa3 ||
832 device->chipset == 0xaa ||
833 device->chipset == 0xac) {
834 pm->clocks_get = nv50_pm_clocks_get;
835 pm->clocks_pre = nv50_pm_clocks_pre;
836 pm->clocks_set = nv50_pm_clocks_set;
838 pm->clocks_get = nva3_pm_clocks_get;
839 pm->clocks_pre = nva3_pm_clocks_pre;
840 pm->clocks_set = nva3_pm_clocks_set;
842 pm->voltage_get = nouveau_voltage_gpio_get;
843 pm->voltage_set = nouveau_voltage_gpio_set;
845 if (device->card_type < NV_E0) {
846 pm->clocks_get = nvc0_pm_clocks_get;
847 pm->clocks_pre = nvc0_pm_clocks_pre;
848 pm->clocks_set = nvc0_pm_clocks_set;
849 pm->voltage_get = nouveau_voltage_gpio_get;
850 pm->voltage_set = nouveau_voltage_gpio_set;
854 /* parse aux tables from vbios */
855 nouveau_volt_init(dev);
857 INIT_LIST_HEAD(&pm->profiles);
859 /* determine current ("boot") performance level */
860 ret = nouveau_pm_perflvl_get(dev, &pm->boot);
862 NV_ERROR(drm, "failed to determine boot perflvl\n");
866 strncpy(pm->boot.name, "boot", 4);
867 strncpy(pm->boot.profile.name, "boot", 4);
868 pm->boot.profile.func = &nouveau_pm_static_profile_func;
870 list_add(&pm->boot.profile.head, &pm->profiles);
872 pm->profile_ac = &pm->boot.profile;
873 pm->profile_dc = &pm->boot.profile;
874 pm->profile = &pm->boot.profile;
877 /* add performance levels from vbios */
878 nouveau_perf_init(dev);
880 /* display available performance levels */
881 NV_INFO(drm, "%d available performance level(s)\n", pm->nr_perflvl);
882 for (i = 0; i < pm->nr_perflvl; i++) {
883 nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
884 NV_INFO(drm, "%d:%s", pm->perflvl[i].id, info);
887 nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
888 NV_INFO(drm, "c:%s", info);
890 /* switch performance levels now if requested */
891 if (nouveau_perflvl != NULL)
892 nouveau_pm_profile_set(dev, nouveau_perflvl);
894 nouveau_sysfs_init(dev);
895 nouveau_hwmon_init(dev);
896 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
897 pm->acpi_nb.notifier_call = nouveau_pm_acpi_event;
898 register_acpi_notifier(&pm->acpi_nb);
905 nouveau_pm_fini(struct drm_device *dev)
907 struct nouveau_pm *pm = nouveau_pm(dev);
908 struct nouveau_pm_profile *profile, *tmp;
910 list_for_each_entry_safe(profile, tmp, &pm->profiles, head) {
911 list_del(&profile->head);
912 profile->func->destroy(profile);
915 if (pm->cur != &pm->boot)
916 nouveau_pm_perflvl_set(dev, &pm->boot);
918 nouveau_perf_fini(dev);
919 nouveau_volt_fini(dev);
921 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
922 unregister_acpi_notifier(&pm->acpi_nb);
924 nouveau_hwmon_fini(dev);
925 nouveau_sysfs_fini(dev);
927 nouveau_drm(dev)->pm = NULL;
932 nouveau_pm_resume(struct drm_device *dev)
934 struct nouveau_pm *pm = nouveau_pm(dev);
935 struct nouveau_pm_level *perflvl;
937 if (!pm->cur || pm->cur == &pm->boot)
942 nouveau_pm_perflvl_set(dev, perflvl);