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->device);
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);
70 if (pm->voltage.supported && pm->voltage_set) {
71 if (perflvl->volt_min && b->volt_min > a->volt_min) {
72 ret = pm->voltage_set(dev, perflvl->volt_min);
74 NV_ERROR(drm, "voltage set failed: %d\n", ret);
84 nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
86 struct nouveau_pm *pm = nouveau_pm(dev);
90 if (perflvl == pm->cur)
93 ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl);
97 state = pm->clocks_pre(dev, perflvl);
102 ret = pm->clocks_set(dev, state);
106 ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
114 /* restore the fan speed and voltage before leaving */
115 nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
120 nouveau_pm_trigger(struct drm_device *dev)
122 struct nouveau_drm *drm = nouveau_drm(dev);
123 struct nouveau_timer *ptimer = nouveau_timer(drm->device);
124 struct nouveau_pm *pm = nouveau_pm(dev);
125 struct nouveau_pm_profile *profile = NULL;
126 struct nouveau_pm_level *perflvl = NULL;
129 /* select power profile based on current power source */
130 if (power_supply_is_system_supplied())
131 profile = pm->profile_ac;
133 profile = pm->profile_dc;
135 if (profile != pm->profile) {
136 pm->profile->func->fini(pm->profile);
137 pm->profile = profile;
138 pm->profile->func->init(pm->profile);
141 /* select performance level based on profile */
142 perflvl = profile->func->select(profile);
144 /* change perflvl, if necessary */
145 if (perflvl != pm->cur) {
146 u64 time0 = ptimer->read(ptimer);
148 NV_INFO(drm, "setting performance level: %d", perflvl->id);
149 ret = nouveau_pm_perflvl_set(dev, perflvl);
151 NV_INFO(drm, "> reclocking failed: %d\n\n", ret);
153 NV_INFO(drm, "> reclocking took %lluns\n\n",
154 ptimer->read(ptimer) - time0);
158 static struct nouveau_pm_profile *
159 profile_find(struct drm_device *dev, const char *string)
161 struct nouveau_pm *pm = nouveau_pm(dev);
162 struct nouveau_pm_profile *profile;
164 list_for_each_entry(profile, &pm->profiles, head) {
165 if (!strncmp(profile->name, string, sizeof(profile->name)))
173 nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
175 struct nouveau_pm *pm = nouveau_pm(dev);
176 struct nouveau_pm_profile *ac = NULL, *dc = NULL;
177 char string[16], *cur = string, *ptr;
179 /* safety precaution, for now */
180 if (nouveau_perflvl_wr != 7777)
183 strncpy(string, profile, sizeof(string));
184 string[sizeof(string) - 1] = 0;
185 if ((ptr = strchr(string, '\n')))
188 ptr = strsep(&cur, ",");
190 ac = profile_find(dev, ptr);
192 ptr = strsep(&cur, ",");
194 dc = profile_find(dev, ptr);
198 if (ac == NULL || dc == NULL)
203 nouveau_pm_trigger(dev);
208 nouveau_pm_static_dummy(struct nouveau_pm_profile *profile)
212 static struct nouveau_pm_level *
213 nouveau_pm_static_select(struct nouveau_pm_profile *profile)
215 return container_of(profile, struct nouveau_pm_level, profile);
218 const struct nouveau_pm_profile_func nouveau_pm_static_profile_func = {
219 .destroy = nouveau_pm_static_dummy,
220 .init = nouveau_pm_static_dummy,
221 .fini = nouveau_pm_static_dummy,
222 .select = nouveau_pm_static_select,
226 nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
228 struct nouveau_drm *drm = nouveau_drm(dev);
229 struct nouveau_pm *pm = nouveau_pm(dev);
230 struct nouveau_therm *therm = nouveau_therm(drm->device);
233 memset(perflvl, 0, sizeof(*perflvl));
235 if (pm->clocks_get) {
236 ret = pm->clocks_get(dev, perflvl);
241 if (pm->voltage.supported && pm->voltage_get) {
242 ret = pm->voltage_get(dev);
244 perflvl->volt_min = ret;
245 perflvl->volt_max = ret;
249 if (therm && therm->fan_get) {
250 ret = therm->fan_get(therm);
252 perflvl->fanspeed = ret;
255 nouveau_mem_timing_read(dev, &perflvl->timing);
260 nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
262 char c[16], s[16], v[32], f[16], m[16];
266 snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000);
270 snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
274 snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000);
277 if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) {
278 snprintf(v, sizeof(v), " voltage %dmV-%dmV",
279 perflvl->volt_min / 1000, perflvl->volt_max / 1000);
281 if (perflvl->volt_min) {
282 snprintf(v, sizeof(v), " voltage %dmV",
283 perflvl->volt_min / 1000);
287 if (perflvl->fanspeed)
288 snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
290 snprintf(ptr, len, "%s%s%s%s%s\n", c, s, m, v, f);
294 nouveau_pm_get_perflvl_info(struct device *d,
295 struct device_attribute *a, char *buf)
297 struct nouveau_pm_level *perflvl =
298 container_of(a, struct nouveau_pm_level, dev_attr);
302 snprintf(ptr, len, "%d:", perflvl->id);
306 nouveau_pm_perflvl_info(perflvl, ptr, len);
311 nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
313 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
314 struct nouveau_pm *pm = nouveau_pm(dev);
315 struct nouveau_pm_level cur;
316 int len = PAGE_SIZE, ret;
319 snprintf(ptr, len, "profile: %s, %s\nc:",
320 pm->profile_ac->name, pm->profile_dc->name);
324 ret = nouveau_pm_perflvl_get(dev, &cur);
326 nouveau_pm_perflvl_info(&cur, ptr, len);
331 nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
332 const char *buf, size_t count)
334 struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
337 ret = nouveau_pm_profile_set(dev, buf);
343 static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
344 nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
347 nouveau_sysfs_init(struct drm_device *dev)
349 struct nouveau_drm *drm = nouveau_drm(dev);
350 struct nouveau_pm *pm = nouveau_pm(dev);
351 struct device *d = &dev->pdev->dev;
354 ret = device_create_file(d, &dev_attr_performance_level);
358 for (i = 0; i < pm->nr_perflvl; i++) {
359 struct nouveau_pm_level *perflvl = &pm->perflvl[i];
361 perflvl->dev_attr.attr.name = perflvl->name;
362 perflvl->dev_attr.attr.mode = S_IRUGO;
363 perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
364 perflvl->dev_attr.store = NULL;
365 sysfs_attr_init(&perflvl->dev_attr.attr);
367 ret = device_create_file(d, &perflvl->dev_attr);
369 NV_ERROR(drm, "failed pervlvl %d sysfs: %d\n",
371 perflvl->dev_attr.attr.name = NULL;
372 nouveau_pm_fini(dev);
381 nouveau_sysfs_fini(struct drm_device *dev)
383 struct nouveau_pm *pm = nouveau_pm(dev);
384 struct device *d = &dev->pdev->dev;
387 device_remove_file(d, &dev_attr_performance_level);
388 for (i = 0; i < pm->nr_perflvl; i++) {
389 struct nouveau_pm_level *pl = &pm->perflvl[i];
391 if (!pl->dev_attr.attr.name)
394 device_remove_file(d, &pl->dev_attr);
398 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
400 nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
402 struct drm_device *dev = dev_get_drvdata(d);
403 struct nouveau_drm *drm = nouveau_drm(dev);
404 struct nouveau_therm *therm = nouveau_therm(drm->device);
405 int temp = therm->temp_get(therm);
410 return snprintf(buf, PAGE_SIZE, "%d\n", temp * 1000);
412 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
416 nouveau_hwmon_show_temp1_auto_point1_pwm(struct device *d,
417 struct device_attribute *a, char *buf)
419 return snprintf(buf, PAGE_SIZE, "%d\n", 100);
421 static SENSOR_DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO,
422 nouveau_hwmon_show_temp1_auto_point1_pwm, NULL, 0);
425 nouveau_hwmon_temp1_auto_point1_temp(struct device *d,
426 struct device_attribute *a, char *buf)
428 struct drm_device *dev = dev_get_drvdata(d);
429 struct nouveau_drm *drm = nouveau_drm(dev);
430 struct nouveau_therm *therm = nouveau_therm(drm->device);
432 return snprintf(buf, PAGE_SIZE, "%d\n",
433 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_FAN_BOOST) * 1000);
436 nouveau_hwmon_set_temp1_auto_point1_temp(struct device *d,
437 struct device_attribute *a,
438 const char *buf, size_t count)
440 struct drm_device *dev = dev_get_drvdata(d);
441 struct nouveau_drm *drm = nouveau_drm(dev);
442 struct nouveau_therm *therm = nouveau_therm(drm->device);
445 if (kstrtol(buf, 10, &value) == -EINVAL)
448 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_FAN_BOOST,
453 static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IRUGO | S_IWUSR,
454 nouveau_hwmon_temp1_auto_point1_temp,
455 nouveau_hwmon_set_temp1_auto_point1_temp, 0);
458 nouveau_hwmon_temp1_auto_point1_temp_hyst(struct device *d,
459 struct device_attribute *a, char *buf)
461 struct drm_device *dev = dev_get_drvdata(d);
462 struct nouveau_drm *drm = nouveau_drm(dev);
463 struct nouveau_therm *therm = nouveau_therm(drm->device);
465 return snprintf(buf, PAGE_SIZE, "%d\n",
466 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_FAN_BOOST_HYST) * 1000);
469 nouveau_hwmon_set_temp1_auto_point1_temp_hyst(struct device *d,
470 struct device_attribute *a,
471 const char *buf, size_t count)
473 struct drm_device *dev = dev_get_drvdata(d);
474 struct nouveau_drm *drm = nouveau_drm(dev);
475 struct nouveau_therm *therm = nouveau_therm(drm->device);
478 if (kstrtol(buf, 10, &value) == -EINVAL)
481 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_FAN_BOOST_HYST,
486 static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
487 nouveau_hwmon_temp1_auto_point1_temp_hyst,
488 nouveau_hwmon_set_temp1_auto_point1_temp_hyst, 0);
491 nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf)
493 struct drm_device *dev = dev_get_drvdata(d);
494 struct nouveau_drm *drm = nouveau_drm(dev);
495 struct nouveau_therm *therm = nouveau_therm(drm->device);
497 return snprintf(buf, PAGE_SIZE, "%d\n",
498 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_DOWN_CLK) * 1000);
501 nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
502 const char *buf, size_t count)
504 struct drm_device *dev = dev_get_drvdata(d);
505 struct nouveau_drm *drm = nouveau_drm(dev);
506 struct nouveau_therm *therm = nouveau_therm(drm->device);
509 if (kstrtol(buf, 10, &value) == -EINVAL)
512 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_DOWN_CLK, value / 1000);
516 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
517 nouveau_hwmon_set_max_temp,
521 nouveau_hwmon_max_temp_hyst(struct device *d, struct device_attribute *a,
524 struct drm_device *dev = dev_get_drvdata(d);
525 struct nouveau_drm *drm = nouveau_drm(dev);
526 struct nouveau_therm *therm = nouveau_therm(drm->device);
528 return snprintf(buf, PAGE_SIZE, "%d\n",
529 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_DOWN_CLK_HYST) * 1000);
532 nouveau_hwmon_set_max_temp_hyst(struct device *d, struct device_attribute *a,
533 const char *buf, size_t count)
535 struct drm_device *dev = dev_get_drvdata(d);
536 struct nouveau_drm *drm = nouveau_drm(dev);
537 struct nouveau_therm *therm = nouveau_therm(drm->device);
540 if (kstrtol(buf, 10, &value) == -EINVAL)
543 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_DOWN_CLK_HYST,
548 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
549 nouveau_hwmon_max_temp_hyst,
550 nouveau_hwmon_set_max_temp_hyst, 0);
553 nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a,
556 struct drm_device *dev = dev_get_drvdata(d);
557 struct nouveau_drm *drm = nouveau_drm(dev);
558 struct nouveau_therm *therm = nouveau_therm(drm->device);
560 return snprintf(buf, PAGE_SIZE, "%d\n",
561 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_CRITICAL) * 1000);
564 nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
568 struct drm_device *dev = dev_get_drvdata(d);
569 struct nouveau_drm *drm = nouveau_drm(dev);
570 struct nouveau_therm *therm = nouveau_therm(drm->device);
573 if (kstrtol(buf, 10, &value) == -EINVAL)
576 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_CRITICAL, value / 1000);
580 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
581 nouveau_hwmon_critical_temp,
582 nouveau_hwmon_set_critical_temp,
586 nouveau_hwmon_critical_temp_hyst(struct device *d, struct device_attribute *a,
589 struct drm_device *dev = dev_get_drvdata(d);
590 struct nouveau_drm *drm = nouveau_drm(dev);
591 struct nouveau_therm *therm = nouveau_therm(drm->device);
593 return snprintf(buf, PAGE_SIZE, "%d\n",
594 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_CRITICAL_HYST) * 1000);
597 nouveau_hwmon_set_critical_temp_hyst(struct device *d,
598 struct device_attribute *a,
602 struct drm_device *dev = dev_get_drvdata(d);
603 struct nouveau_drm *drm = nouveau_drm(dev);
604 struct nouveau_therm *therm = nouveau_therm(drm->device);
607 if (kstrtol(buf, 10, &value) == -EINVAL)
610 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_CRITICAL_HYST,
615 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO | S_IWUSR,
616 nouveau_hwmon_critical_temp_hyst,
617 nouveau_hwmon_set_critical_temp_hyst, 0);
619 nouveau_hwmon_emergency_temp(struct device *d, struct device_attribute *a,
622 struct drm_device *dev = dev_get_drvdata(d);
623 struct nouveau_drm *drm = nouveau_drm(dev);
624 struct nouveau_therm *therm = nouveau_therm(drm->device);
626 return snprintf(buf, PAGE_SIZE, "%d\n",
627 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_SHUTDOWN) * 1000);
630 nouveau_hwmon_set_emergency_temp(struct device *d, struct device_attribute *a,
634 struct drm_device *dev = dev_get_drvdata(d);
635 struct nouveau_drm *drm = nouveau_drm(dev);
636 struct nouveau_therm *therm = nouveau_therm(drm->device);
639 if (kstrtol(buf, 10, &value) == -EINVAL)
642 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_SHUTDOWN, value / 1000);
646 static SENSOR_DEVICE_ATTR(temp1_emergency, S_IRUGO | S_IWUSR,
647 nouveau_hwmon_emergency_temp,
648 nouveau_hwmon_set_emergency_temp,
652 nouveau_hwmon_emergency_temp_hyst(struct device *d, struct device_attribute *a,
655 struct drm_device *dev = dev_get_drvdata(d);
656 struct nouveau_drm *drm = nouveau_drm(dev);
657 struct nouveau_therm *therm = nouveau_therm(drm->device);
659 return snprintf(buf, PAGE_SIZE, "%d\n",
660 therm->attr_get(therm, NOUVEAU_THERM_ATTR_THRS_SHUTDOWN_HYST) * 1000);
663 nouveau_hwmon_set_emergency_temp_hyst(struct device *d,
664 struct device_attribute *a,
668 struct drm_device *dev = dev_get_drvdata(d);
669 struct nouveau_drm *drm = nouveau_drm(dev);
670 struct nouveau_therm *therm = nouveau_therm(drm->device);
673 if (kstrtol(buf, 10, &value) == -EINVAL)
676 therm->attr_set(therm, NOUVEAU_THERM_ATTR_THRS_SHUTDOWN_HYST,
681 static SENSOR_DEVICE_ATTR(temp1_emergency_hyst, S_IRUGO | S_IWUSR,
682 nouveau_hwmon_emergency_temp_hyst,
683 nouveau_hwmon_set_emergency_temp_hyst,
686 static ssize_t nouveau_hwmon_show_name(struct device *dev,
687 struct device_attribute *attr,
690 return sprintf(buf, "nouveau\n");
692 static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
694 static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
695 struct device_attribute *attr,
698 return sprintf(buf, "1000\n");
700 static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
701 nouveau_hwmon_show_update_rate,
705 nouveau_hwmon_show_fan1_input(struct device *d, struct device_attribute *attr,
708 struct drm_device *dev = dev_get_drvdata(d);
709 struct nouveau_drm *drm = nouveau_drm(dev);
710 struct nouveau_therm *therm = nouveau_therm(drm->device);
712 return snprintf(buf, PAGE_SIZE, "%d\n", therm->fan_sense(therm));
714 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, nouveau_hwmon_show_fan1_input,
718 nouveau_hwmon_get_pwm1_enable(struct device *d,
719 struct device_attribute *a, char *buf)
721 struct drm_device *dev = dev_get_drvdata(d);
722 struct nouveau_drm *drm = nouveau_drm(dev);
723 struct nouveau_therm *therm = nouveau_therm(drm->device);
726 ret = therm->attr_get(therm, NOUVEAU_THERM_ATTR_FAN_MODE);
730 return sprintf(buf, "%i\n", ret);
734 nouveau_hwmon_set_pwm1_enable(struct device *d, struct device_attribute *a,
735 const char *buf, size_t count)
737 struct drm_device *dev = dev_get_drvdata(d);
738 struct nouveau_drm *drm = nouveau_drm(dev);
739 struct nouveau_therm *therm = nouveau_therm(drm->device);
743 if (strict_strtol(buf, 10, &value) == -EINVAL)
746 ret = therm->attr_set(therm, NOUVEAU_THERM_ATTR_FAN_MODE, value);
752 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
753 nouveau_hwmon_get_pwm1_enable,
754 nouveau_hwmon_set_pwm1_enable, 0);
757 nouveau_hwmon_get_pwm1(struct device *d, struct device_attribute *a, char *buf)
759 struct drm_device *dev = dev_get_drvdata(d);
760 struct nouveau_drm *drm = nouveau_drm(dev);
761 struct nouveau_therm *therm = nouveau_therm(drm->device);
764 ret = therm->fan_get(therm);
768 return sprintf(buf, "%i\n", ret);
772 nouveau_hwmon_set_pwm1(struct device *d, struct device_attribute *a,
773 const char *buf, size_t count)
775 struct drm_device *dev = dev_get_drvdata(d);
776 struct nouveau_drm *drm = nouveau_drm(dev);
777 struct nouveau_therm *therm = nouveau_therm(drm->device);
781 if (nouveau_perflvl_wr != 7777)
784 if (kstrtol(buf, 10, &value) == -EINVAL)
787 ret = therm->fan_set(therm, value);
794 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR,
795 nouveau_hwmon_get_pwm1,
796 nouveau_hwmon_set_pwm1, 0);
799 nouveau_hwmon_get_pwm1_min(struct device *d,
800 struct device_attribute *a, char *buf)
802 struct drm_device *dev = dev_get_drvdata(d);
803 struct nouveau_drm *drm = nouveau_drm(dev);
804 struct nouveau_therm *therm = nouveau_therm(drm->device);
807 ret = therm->attr_get(therm, NOUVEAU_THERM_ATTR_FAN_MIN_DUTY);
811 return sprintf(buf, "%i\n", ret);
815 nouveau_hwmon_set_pwm1_min(struct device *d, struct device_attribute *a,
816 const char *buf, size_t count)
818 struct drm_device *dev = dev_get_drvdata(d);
819 struct nouveau_drm *drm = nouveau_drm(dev);
820 struct nouveau_therm *therm = nouveau_therm(drm->device);
824 if (kstrtol(buf, 10, &value) == -EINVAL)
827 ret = therm->attr_set(therm, NOUVEAU_THERM_ATTR_FAN_MIN_DUTY, value);
834 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO | S_IWUSR,
835 nouveau_hwmon_get_pwm1_min,
836 nouveau_hwmon_set_pwm1_min, 0);
839 nouveau_hwmon_get_pwm1_max(struct device *d,
840 struct device_attribute *a, char *buf)
842 struct drm_device *dev = dev_get_drvdata(d);
843 struct nouveau_drm *drm = nouveau_drm(dev);
844 struct nouveau_therm *therm = nouveau_therm(drm->device);
847 ret = therm->attr_get(therm, NOUVEAU_THERM_ATTR_FAN_MAX_DUTY);
851 return sprintf(buf, "%i\n", ret);
855 nouveau_hwmon_set_pwm1_max(struct device *d, struct device_attribute *a,
856 const char *buf, size_t count)
858 struct drm_device *dev = dev_get_drvdata(d);
859 struct nouveau_drm *drm = nouveau_drm(dev);
860 struct nouveau_therm *therm = nouveau_therm(drm->device);
864 if (kstrtol(buf, 10, &value) == -EINVAL)
867 ret = therm->attr_set(therm, NOUVEAU_THERM_ATTR_FAN_MAX_DUTY, value);
874 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO | S_IWUSR,
875 nouveau_hwmon_get_pwm1_max,
876 nouveau_hwmon_set_pwm1_max, 0);
878 static struct attribute *hwmon_default_attributes[] = {
879 &sensor_dev_attr_name.dev_attr.attr,
880 &sensor_dev_attr_update_rate.dev_attr.attr,
883 static struct attribute *hwmon_temp_attributes[] = {
884 &sensor_dev_attr_temp1_input.dev_attr.attr,
885 &sensor_dev_attr_temp1_auto_point1_pwm.dev_attr.attr,
886 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
887 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
888 &sensor_dev_attr_temp1_max.dev_attr.attr,
889 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
890 &sensor_dev_attr_temp1_crit.dev_attr.attr,
891 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
892 &sensor_dev_attr_temp1_emergency.dev_attr.attr,
893 &sensor_dev_attr_temp1_emergency_hyst.dev_attr.attr,
896 static struct attribute *hwmon_fan_rpm_attributes[] = {
897 &sensor_dev_attr_fan1_input.dev_attr.attr,
900 static struct attribute *hwmon_pwm_fan_attributes[] = {
901 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
902 &sensor_dev_attr_pwm1.dev_attr.attr,
903 &sensor_dev_attr_pwm1_min.dev_attr.attr,
904 &sensor_dev_attr_pwm1_max.dev_attr.attr,
908 static const struct attribute_group hwmon_default_attrgroup = {
909 .attrs = hwmon_default_attributes,
911 static const struct attribute_group hwmon_temp_attrgroup = {
912 .attrs = hwmon_temp_attributes,
914 static const struct attribute_group hwmon_fan_rpm_attrgroup = {
915 .attrs = hwmon_fan_rpm_attributes,
917 static const struct attribute_group hwmon_pwm_fan_attrgroup = {
918 .attrs = hwmon_pwm_fan_attributes,
923 nouveau_hwmon_init(struct drm_device *dev)
925 struct nouveau_pm *pm = nouveau_pm(dev);
927 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
928 struct nouveau_drm *drm = nouveau_drm(dev);
929 struct nouveau_therm *therm = nouveau_therm(drm->device);
930 struct device *hwmon_dev;
933 if (!therm || !therm->temp_get || !therm->attr_get || !therm->attr_set)
936 hwmon_dev = hwmon_device_register(&dev->pdev->dev);
937 if (IS_ERR(hwmon_dev)) {
938 ret = PTR_ERR(hwmon_dev);
939 NV_ERROR(drm, "Unable to register hwmon device: %d\n", ret);
942 dev_set_drvdata(hwmon_dev, dev);
944 /* set the default attributes */
945 ret = sysfs_create_group(&hwmon_dev->kobj, &hwmon_default_attrgroup);
951 /* if the card has a working thermal sensor */
952 if (therm->temp_get(therm) >= 0) {
953 ret = sysfs_create_group(&hwmon_dev->kobj, &hwmon_temp_attrgroup);
960 /* if the card has a pwm fan */
961 /*XXX: incorrect, need better detection for this, some boards have
962 * the gpio entries for pwm fan control even when there's no
963 * actual fan connected to it... therm table? */
964 if (therm->fan_get && therm->fan_get(therm) >= 0) {
965 ret = sysfs_create_group(&hwmon_dev->kobj,
966 &hwmon_pwm_fan_attrgroup);
971 /* if the card can read the fan rpm */
972 if (therm->fan_sense(therm) >= 0) {
973 ret = sysfs_create_group(&hwmon_dev->kobj,
974 &hwmon_fan_rpm_attrgroup);
979 pm->hwmon = hwmon_dev;
984 NV_ERROR(drm, "Unable to create some hwmon sysfs files: %d\n", ret);
985 hwmon_device_unregister(hwmon_dev);
995 nouveau_hwmon_fini(struct drm_device *dev)
997 #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
998 struct nouveau_pm *pm = nouveau_pm(dev);
1001 sysfs_remove_group(&pm->hwmon->kobj, &hwmon_default_attrgroup);
1002 sysfs_remove_group(&pm->hwmon->kobj, &hwmon_temp_attrgroup);
1003 sysfs_remove_group(&pm->hwmon->kobj, &hwmon_pwm_fan_attrgroup);
1004 sysfs_remove_group(&pm->hwmon->kobj, &hwmon_fan_rpm_attrgroup);
1006 hwmon_device_unregister(pm->hwmon);
1011 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
1013 nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data)
1015 struct nouveau_pm *pm = container_of(nb, struct nouveau_pm, acpi_nb);
1016 struct nouveau_drm *drm = nouveau_drm(pm->dev);
1017 struct acpi_bus_event *entry = (struct acpi_bus_event *)data;
1019 if (strcmp(entry->device_class, "ac_adapter") == 0) {
1020 bool ac = power_supply_is_system_supplied();
1022 NV_DEBUG(drm, "power supply changed: %s\n", ac ? "AC" : "DC");
1023 nouveau_pm_trigger(pm->dev);
1031 nouveau_pm_init(struct drm_device *dev)
1033 struct nouveau_device *device = nouveau_dev(dev);
1034 struct nouveau_drm *drm = nouveau_drm(dev);
1035 struct nouveau_pm *pm;
1039 pm = drm->pm = kzalloc(sizeof(*pm), GFP_KERNEL);
1045 if (device->card_type < NV_40) {
1046 pm->clocks_get = nv04_pm_clocks_get;
1047 pm->clocks_pre = nv04_pm_clocks_pre;
1048 pm->clocks_set = nv04_pm_clocks_set;
1049 if (nouveau_gpio(drm->device)) {
1050 pm->voltage_get = nouveau_voltage_gpio_get;
1051 pm->voltage_set = nouveau_voltage_gpio_set;
1054 if (device->card_type < NV_50) {
1055 pm->clocks_get = nv40_pm_clocks_get;
1056 pm->clocks_pre = nv40_pm_clocks_pre;
1057 pm->clocks_set = nv40_pm_clocks_set;
1058 pm->voltage_get = nouveau_voltage_gpio_get;
1059 pm->voltage_set = nouveau_voltage_gpio_set;
1061 if (device->card_type < NV_C0) {
1062 if (device->chipset < 0xa3 ||
1063 device->chipset == 0xaa ||
1064 device->chipset == 0xac) {
1065 pm->clocks_get = nv50_pm_clocks_get;
1066 pm->clocks_pre = nv50_pm_clocks_pre;
1067 pm->clocks_set = nv50_pm_clocks_set;
1069 pm->clocks_get = nva3_pm_clocks_get;
1070 pm->clocks_pre = nva3_pm_clocks_pre;
1071 pm->clocks_set = nva3_pm_clocks_set;
1073 pm->voltage_get = nouveau_voltage_gpio_get;
1074 pm->voltage_set = nouveau_voltage_gpio_set;
1076 if (device->card_type < NV_E0) {
1077 pm->clocks_get = nvc0_pm_clocks_get;
1078 pm->clocks_pre = nvc0_pm_clocks_pre;
1079 pm->clocks_set = nvc0_pm_clocks_set;
1080 pm->voltage_get = nouveau_voltage_gpio_get;
1081 pm->voltage_set = nouveau_voltage_gpio_set;
1085 /* parse aux tables from vbios */
1086 nouveau_volt_init(dev);
1088 INIT_LIST_HEAD(&pm->profiles);
1090 /* determine current ("boot") performance level */
1091 ret = nouveau_pm_perflvl_get(dev, &pm->boot);
1093 NV_ERROR(drm, "failed to determine boot perflvl\n");
1097 strncpy(pm->boot.name, "boot", 4);
1098 strncpy(pm->boot.profile.name, "boot", 4);
1099 pm->boot.profile.func = &nouveau_pm_static_profile_func;
1101 list_add(&pm->boot.profile.head, &pm->profiles);
1103 pm->profile_ac = &pm->boot.profile;
1104 pm->profile_dc = &pm->boot.profile;
1105 pm->profile = &pm->boot.profile;
1106 pm->cur = &pm->boot;
1108 /* add performance levels from vbios */
1109 nouveau_perf_init(dev);
1111 /* display available performance levels */
1112 NV_INFO(drm, "%d available performance level(s)\n", pm->nr_perflvl);
1113 for (i = 0; i < pm->nr_perflvl; i++) {
1114 nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
1115 NV_INFO(drm, "%d:%s", pm->perflvl[i].id, info);
1118 nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
1119 NV_INFO(drm, "c:%s", info);
1121 /* switch performance levels now if requested */
1122 if (nouveau_perflvl != NULL)
1123 nouveau_pm_profile_set(dev, nouveau_perflvl);
1125 nouveau_sysfs_init(dev);
1126 nouveau_hwmon_init(dev);
1127 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
1128 pm->acpi_nb.notifier_call = nouveau_pm_acpi_event;
1129 register_acpi_notifier(&pm->acpi_nb);
1136 nouveau_pm_fini(struct drm_device *dev)
1138 struct nouveau_pm *pm = nouveau_pm(dev);
1139 struct nouveau_pm_profile *profile, *tmp;
1141 list_for_each_entry_safe(profile, tmp, &pm->profiles, head) {
1142 list_del(&profile->head);
1143 profile->func->destroy(profile);
1146 if (pm->cur != &pm->boot)
1147 nouveau_pm_perflvl_set(dev, &pm->boot);
1149 nouveau_perf_fini(dev);
1150 nouveau_volt_fini(dev);
1152 #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
1153 unregister_acpi_notifier(&pm->acpi_nb);
1155 nouveau_hwmon_fini(dev);
1156 nouveau_sysfs_fini(dev);
1158 nouveau_drm(dev)->pm = NULL;
1163 nouveau_pm_resume(struct drm_device *dev)
1165 struct nouveau_pm *pm = nouveau_pm(dev);
1166 struct nouveau_pm_level *perflvl;
1168 if (!pm->cur || pm->cur == &pm->boot)
1172 pm->cur = &pm->boot;
1173 nouveau_pm_perflvl_set(dev, perflvl);