Commit | Line | Data |
---|---|---|
330c5988 BS |
1 | /* |
2 | * Copyright 2010 Red Hat Inc. | |
3 | * | |
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: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
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. | |
21 | * | |
22 | * Authors: Ben Skeggs | |
23 | */ | |
24 | ||
760285e7 | 25 | #include <drm/drmP.h> |
330c5988 BS |
26 | |
27 | #include "nouveau_drv.h" | |
28 | #include "nouveau_pm.h" | |
a0b25635 | 29 | #include "nouveau_gpio.h" |
330c5988 | 30 | |
6032649d BS |
31 | #ifdef CONFIG_ACPI |
32 | #include <linux/acpi.h> | |
33 | #endif | |
34 | #include <linux/power_supply.h> | |
34e9d85a MP |
35 | #include <linux/hwmon.h> |
36 | #include <linux/hwmon-sysfs.h> | |
37 | ||
a175094c BS |
38 | static int |
39 | nouveau_pwmfan_get(struct drm_device *dev) | |
40 | { | |
41 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
a175094c | 42 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
a0b25635 | 43 | struct gpio_func gpio; |
a175094c BS |
44 | u32 divs, duty; |
45 | int ret; | |
46 | ||
1e054157 | 47 | if (!pm->pwm_get) |
a175094c | 48 | return -ENODEV; |
a175094c | 49 | |
a0b25635 BS |
50 | ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio); |
51 | if (ret == 0) { | |
52 | ret = pm->pwm_get(dev, gpio.line, &divs, &duty); | |
3d8a408c | 53 | if (ret == 0 && divs) { |
a175094c | 54 | divs = max(divs, duty); |
a0b25635 | 55 | if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1)) |
a175094c BS |
56 | duty = divs - duty; |
57 | return (duty * 100) / divs; | |
58 | } | |
59 | ||
a0b25635 | 60 | return nouveau_gpio_func_get(dev, gpio.func) * 100; |
a175094c BS |
61 | } |
62 | ||
63 | return -ENODEV; | |
64 | } | |
65 | ||
66 | static int | |
67 | nouveau_pwmfan_set(struct drm_device *dev, int percent) | |
68 | { | |
69 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
70 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
a0b25635 | 71 | struct gpio_func gpio; |
a175094c | 72 | u32 divs, duty; |
a0b25635 | 73 | int ret; |
a175094c | 74 | |
1e054157 | 75 | if (!pm->pwm_set) |
a175094c | 76 | return -ENODEV; |
a175094c | 77 | |
a0b25635 BS |
78 | ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio); |
79 | if (ret == 0) { | |
b1aa5531 | 80 | divs = pm->fan.pwm_divisor; |
a175094c BS |
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) | |
85 | divs /= 4; | |
86 | } | |
87 | ||
88 | duty = ((divs * percent) + 99) / 100; | |
a0b25635 | 89 | if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1)) |
a175094c BS |
90 | duty = divs - duty; |
91 | ||
bc6389e4 MP |
92 | ret = pm->pwm_set(dev, gpio.line, divs, duty); |
93 | if (!ret) | |
94 | pm->fan.percent = percent; | |
95 | return ret; | |
a175094c BS |
96 | } |
97 | ||
98 | return -ENODEV; | |
99 | } | |
100 | ||
64f1c11a | 101 | static int |
0b627a0b BS |
102 | nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl, |
103 | struct nouveau_pm_level *a, struct nouveau_pm_level *b) | |
64f1c11a BS |
104 | { |
105 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
106 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
107 | int ret; | |
108 | ||
11b7d895 MP |
109 | /*XXX: not on all boards, we should control based on temperature |
110 | * on recent boards.. or maybe on some other factor we don't | |
111 | * know about? | |
112 | */ | |
0b627a0b | 113 | if (a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) { |
a175094c | 114 | ret = nouveau_pwmfan_set(dev, perflvl->fanspeed); |
0b627a0b BS |
115 | if (ret && ret != -ENODEV) { |
116 | NV_ERROR(dev, "fanspeed set failed: %d\n", ret); | |
117 | return ret; | |
118 | } | |
771e1035 BS |
119 | } |
120 | ||
0b627a0b | 121 | if (pm->voltage.supported && pm->voltage_set) { |
d2edab4a | 122 | if (perflvl->volt_min && b->volt_min > a->volt_min) { |
0b627a0b BS |
123 | ret = pm->voltage_set(dev, perflvl->volt_min); |
124 | if (ret) { | |
125 | NV_ERROR(dev, "voltage set failed: %d\n", ret); | |
126 | return ret; | |
127 | } | |
64f1c11a BS |
128 | } |
129 | } | |
130 | ||
0b627a0b BS |
131 | return 0; |
132 | } | |
133 | ||
134 | static int | |
135 | nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl) | |
136 | { | |
137 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
138 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
139 | void *state; | |
140 | int ret; | |
141 | ||
142 | if (perflvl == pm->cur) | |
143 | return 0; | |
144 | ||
145 | ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl); | |
146 | if (ret) | |
147 | return ret; | |
148 | ||
ff2b6c6e | 149 | state = pm->clocks_pre(dev, perflvl); |
b0103747 MP |
150 | if (IS_ERR(state)) { |
151 | ret = PTR_ERR(state); | |
152 | goto error; | |
153 | } | |
154 | ret = pm->clocks_set(dev, state); | |
155 | if (ret) | |
156 | goto error; | |
64f1c11a | 157 | |
0b627a0b BS |
158 | ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur); |
159 | if (ret) | |
160 | return ret; | |
161 | ||
64f1c11a BS |
162 | pm->cur = perflvl; |
163 | return 0; | |
b0103747 MP |
164 | |
165 | error: | |
166 | /* restore the fan speed and voltage before leaving */ | |
167 | nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur); | |
168 | return ret; | |
64f1c11a BS |
169 | } |
170 | ||
8d7bb400 BS |
171 | void |
172 | nouveau_pm_trigger(struct drm_device *dev) | |
173 | { | |
174 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
175 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
176 | struct nouveau_pm_profile *profile = NULL; | |
177 | struct nouveau_pm_level *perflvl = NULL; | |
178 | int ret; | |
179 | ||
180 | /* select power profile based on current power source */ | |
181 | if (power_supply_is_system_supplied()) | |
182 | profile = pm->profile_ac; | |
183 | else | |
184 | profile = pm->profile_dc; | |
185 | ||
25c53c10 BS |
186 | if (profile != pm->profile) { |
187 | pm->profile->func->fini(pm->profile); | |
188 | pm->profile = profile; | |
189 | pm->profile->func->init(pm->profile); | |
190 | } | |
191 | ||
8d7bb400 BS |
192 | /* select performance level based on profile */ |
193 | perflvl = profile->func->select(profile); | |
194 | ||
195 | /* change perflvl, if necessary */ | |
196 | if (perflvl != pm->cur) { | |
197 | struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; | |
198 | u64 time0 = ptimer->read(dev); | |
199 | ||
200 | NV_INFO(dev, "setting performance level: %d", perflvl->id); | |
201 | ret = nouveau_pm_perflvl_set(dev, perflvl); | |
202 | if (ret) | |
203 | NV_INFO(dev, "> reclocking failed: %d\n\n", ret); | |
204 | ||
205 | NV_INFO(dev, "> reclocking took %lluns\n\n", | |
206 | ptimer->read(dev) - time0); | |
207 | } | |
208 | } | |
209 | ||
210 | static struct nouveau_pm_profile * | |
211 | profile_find(struct drm_device *dev, const char *string) | |
212 | { | |
213 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
214 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
215 | struct nouveau_pm_profile *profile; | |
216 | ||
217 | list_for_each_entry(profile, &pm->profiles, head) { | |
218 | if (!strncmp(profile->name, string, sizeof(profile->name))) | |
219 | return profile; | |
220 | } | |
221 | ||
222 | return NULL; | |
223 | } | |
224 | ||
6f876986 BS |
225 | static int |
226 | nouveau_pm_profile_set(struct drm_device *dev, const char *profile) | |
227 | { | |
228 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
229 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
8d7bb400 BS |
230 | struct nouveau_pm_profile *ac = NULL, *dc = NULL; |
231 | char string[16], *cur = string, *ptr; | |
6f876986 BS |
232 | |
233 | /* safety precaution, for now */ | |
234 | if (nouveau_perflvl_wr != 7777) | |
235 | return -EPERM; | |
236 | ||
8d7bb400 | 237 | strncpy(string, profile, sizeof(string)); |
5799d9e2 | 238 | string[sizeof(string) - 1] = 0; |
8d7bb400 BS |
239 | if ((ptr = strchr(string, '\n'))) |
240 | *ptr = '\0'; | |
6f876986 | 241 | |
8d7bb400 BS |
242 | ptr = strsep(&cur, ","); |
243 | if (ptr) | |
244 | ac = profile_find(dev, ptr); | |
6f876986 | 245 | |
8d7bb400 BS |
246 | ptr = strsep(&cur, ","); |
247 | if (ptr) | |
248 | dc = profile_find(dev, ptr); | |
249 | else | |
250 | dc = ac; | |
b0103747 | 251 | |
8d7bb400 BS |
252 | if (ac == NULL || dc == NULL) |
253 | return -EINVAL; | |
254 | ||
255 | pm->profile_ac = ac; | |
256 | pm->profile_dc = dc; | |
257 | nouveau_pm_trigger(dev); | |
258 | return 0; | |
6f876986 BS |
259 | } |
260 | ||
25c53c10 BS |
261 | static void |
262 | nouveau_pm_static_dummy(struct nouveau_pm_profile *profile) | |
263 | { | |
264 | } | |
265 | ||
8d7bb400 BS |
266 | static struct nouveau_pm_level * |
267 | nouveau_pm_static_select(struct nouveau_pm_profile *profile) | |
268 | { | |
269 | return container_of(profile, struct nouveau_pm_level, profile); | |
270 | } | |
271 | ||
272 | const struct nouveau_pm_profile_func nouveau_pm_static_profile_func = { | |
25c53c10 BS |
273 | .destroy = nouveau_pm_static_dummy, |
274 | .init = nouveau_pm_static_dummy, | |
275 | .fini = nouveau_pm_static_dummy, | |
8d7bb400 BS |
276 | .select = nouveau_pm_static_select, |
277 | }; | |
278 | ||
330c5988 BS |
279 | static int |
280 | nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl) | |
281 | { | |
282 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
283 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
284 | int ret; | |
285 | ||
330c5988 BS |
286 | memset(perflvl, 0, sizeof(*perflvl)); |
287 | ||
c11dd0da BS |
288 | if (pm->clocks_get) { |
289 | ret = pm->clocks_get(dev, perflvl); | |
290 | if (ret) | |
291 | return ret; | |
292 | } | |
330c5988 BS |
293 | |
294 | if (pm->voltage.supported && pm->voltage_get) { | |
295 | ret = pm->voltage_get(dev); | |
3b5565dd BS |
296 | if (ret > 0) { |
297 | perflvl->volt_min = ret; | |
298 | perflvl->volt_max = ret; | |
299 | } | |
330c5988 BS |
300 | } |
301 | ||
a175094c BS |
302 | ret = nouveau_pwmfan_get(dev); |
303 | if (ret > 0) | |
304 | perflvl->fanspeed = ret; | |
771e1035 | 305 | |
fd99fd61 | 306 | nouveau_mem_timing_read(dev, &perflvl->timing); |
330c5988 BS |
307 | return 0; |
308 | } | |
309 | ||
310 | static void | |
311 | nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len) | |
312 | { | |
085028ce | 313 | char c[16], s[16], v[32], f[16], m[16]; |
0fbb114a FJ |
314 | |
315 | c[0] = '\0'; | |
316 | if (perflvl->core) | |
317 | snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000); | |
330c5988 BS |
318 | |
319 | s[0] = '\0'; | |
320 | if (perflvl->shader) | |
321 | snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000); | |
322 | ||
93dccbed BS |
323 | m[0] = '\0'; |
324 | if (perflvl->memory) | |
325 | snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000); | |
326 | ||
330c5988 | 327 | v[0] = '\0'; |
3b5565dd BS |
328 | if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) { |
329 | snprintf(v, sizeof(v), " voltage %dmV-%dmV", | |
330 | perflvl->volt_min / 1000, perflvl->volt_max / 1000); | |
331 | } else | |
332 | if (perflvl->volt_min) { | |
333 | snprintf(v, sizeof(v), " voltage %dmV", | |
334 | perflvl->volt_min / 1000); | |
335 | } | |
330c5988 BS |
336 | |
337 | f[0] = '\0'; | |
338 | if (perflvl->fanspeed) | |
339 | snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed); | |
340 | ||
8d7bb400 | 341 | snprintf(ptr, len, "%s%s%s%s%s\n", c, s, m, v, f); |
330c5988 BS |
342 | } |
343 | ||
344 | static ssize_t | |
345 | nouveau_pm_get_perflvl_info(struct device *d, | |
346 | struct device_attribute *a, char *buf) | |
347 | { | |
8d7bb400 BS |
348 | struct nouveau_pm_level *perflvl = |
349 | container_of(a, struct nouveau_pm_level, dev_attr); | |
330c5988 BS |
350 | char *ptr = buf; |
351 | int len = PAGE_SIZE; | |
352 | ||
93dccbed | 353 | snprintf(ptr, len, "%d:", perflvl->id); |
330c5988 BS |
354 | ptr += strlen(buf); |
355 | len -= strlen(buf); | |
356 | ||
357 | nouveau_pm_perflvl_info(perflvl, ptr, len); | |
358 | return strlen(buf); | |
359 | } | |
360 | ||
361 | static ssize_t | |
362 | nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf) | |
363 | { | |
34e9d85a | 364 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
330c5988 BS |
365 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
366 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
367 | struct nouveau_pm_level cur; | |
368 | int len = PAGE_SIZE, ret; | |
369 | char *ptr = buf; | |
370 | ||
8d7bb400 BS |
371 | snprintf(ptr, len, "profile: %s, %s\nc:", |
372 | pm->profile_ac->name, pm->profile_dc->name); | |
330c5988 BS |
373 | ptr += strlen(buf); |
374 | len -= strlen(buf); | |
375 | ||
376 | ret = nouveau_pm_perflvl_get(dev, &cur); | |
377 | if (ret == 0) | |
378 | nouveau_pm_perflvl_info(&cur, ptr, len); | |
379 | return strlen(buf); | |
380 | } | |
381 | ||
382 | static ssize_t | |
383 | nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a, | |
384 | const char *buf, size_t count) | |
385 | { | |
34e9d85a | 386 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
6f876986 BS |
387 | int ret; |
388 | ||
389 | ret = nouveau_pm_profile_set(dev, buf); | |
390 | if (ret) | |
391 | return ret; | |
392 | return strlen(buf); | |
330c5988 BS |
393 | } |
394 | ||
5c4abd09 FJ |
395 | static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR, |
396 | nouveau_pm_get_perflvl, nouveau_pm_set_perflvl); | |
330c5988 | 397 | |
34e9d85a MP |
398 | static int |
399 | nouveau_sysfs_init(struct drm_device *dev) | |
330c5988 BS |
400 | { |
401 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
402 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
403 | struct device *d = &dev->pdev->dev; | |
330c5988 BS |
404 | int ret, i; |
405 | ||
330c5988 BS |
406 | ret = device_create_file(d, &dev_attr_performance_level); |
407 | if (ret) | |
408 | return ret; | |
409 | ||
410 | for (i = 0; i < pm->nr_perflvl; i++) { | |
411 | struct nouveau_pm_level *perflvl = &pm->perflvl[i]; | |
412 | ||
413 | perflvl->dev_attr.attr.name = perflvl->name; | |
414 | perflvl->dev_attr.attr.mode = S_IRUGO; | |
415 | perflvl->dev_attr.show = nouveau_pm_get_perflvl_info; | |
416 | perflvl->dev_attr.store = NULL; | |
417 | sysfs_attr_init(&perflvl->dev_attr.attr); | |
418 | ||
419 | ret = device_create_file(d, &perflvl->dev_attr); | |
420 | if (ret) { | |
421 | NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n", | |
422 | perflvl->id, i); | |
423 | perflvl->dev_attr.attr.name = NULL; | |
424 | nouveau_pm_fini(dev); | |
425 | return ret; | |
426 | } | |
427 | } | |
428 | ||
429 | return 0; | |
430 | } | |
431 | ||
34e9d85a MP |
432 | static void |
433 | nouveau_sysfs_fini(struct drm_device *dev) | |
330c5988 BS |
434 | { |
435 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
436 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
437 | struct device *d = &dev->pdev->dev; | |
438 | int i; | |
439 | ||
440 | device_remove_file(d, &dev_attr_performance_level); | |
441 | for (i = 0; i < pm->nr_perflvl; i++) { | |
442 | struct nouveau_pm_level *pl = &pm->perflvl[i]; | |
443 | ||
444 | if (!pl->dev_attr.attr.name) | |
445 | break; | |
446 | ||
447 | device_remove_file(d, &pl->dev_attr); | |
448 | } | |
34e9d85a MP |
449 | } |
450 | ||
658e86ee | 451 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a MP |
452 | static ssize_t |
453 | nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf) | |
454 | { | |
455 | struct drm_device *dev = dev_get_drvdata(d); | |
8155cac4 FJ |
456 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
457 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
34e9d85a | 458 | |
8155cac4 | 459 | return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000); |
34e9d85a MP |
460 | } |
461 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp, | |
462 | NULL, 0); | |
463 | ||
464 | static ssize_t | |
465 | nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf) | |
466 | { | |
467 | struct drm_device *dev = dev_get_drvdata(d); | |
468 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
469 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
470 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
471 | ||
472 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000); | |
473 | } | |
474 | static ssize_t | |
475 | nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a, | |
476 | const char *buf, size_t count) | |
477 | { | |
478 | struct drm_device *dev = dev_get_drvdata(d); | |
479 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
480 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
481 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
482 | long value; | |
483 | ||
ddb20055 | 484 | if (kstrtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
485 | return count; |
486 | ||
487 | temp->down_clock = value/1000; | |
488 | ||
489 | nouveau_temp_safety_checks(dev); | |
490 | ||
491 | return count; | |
492 | } | |
493 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp, | |
494 | nouveau_hwmon_set_max_temp, | |
495 | 0); | |
496 | ||
497 | static ssize_t | |
498 | nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a, | |
499 | char *buf) | |
500 | { | |
501 | struct drm_device *dev = dev_get_drvdata(d); | |
502 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
503 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
504 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
505 | ||
506 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000); | |
507 | } | |
508 | static ssize_t | |
509 | nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a, | |
510 | const char *buf, | |
511 | size_t count) | |
512 | { | |
513 | struct drm_device *dev = dev_get_drvdata(d); | |
514 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
515 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
516 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
517 | long value; | |
518 | ||
ddb20055 | 519 | if (kstrtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
520 | return count; |
521 | ||
522 | temp->critical = value/1000; | |
523 | ||
524 | nouveau_temp_safety_checks(dev); | |
525 | ||
526 | return count; | |
527 | } | |
528 | static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR, | |
529 | nouveau_hwmon_critical_temp, | |
530 | nouveau_hwmon_set_critical_temp, | |
531 | 0); | |
532 | ||
533 | static ssize_t nouveau_hwmon_show_name(struct device *dev, | |
534 | struct device_attribute *attr, | |
535 | char *buf) | |
536 | { | |
537 | return sprintf(buf, "nouveau\n"); | |
538 | } | |
539 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0); | |
540 | ||
541 | static ssize_t nouveau_hwmon_show_update_rate(struct device *dev, | |
542 | struct device_attribute *attr, | |
543 | char *buf) | |
544 | { | |
545 | return sprintf(buf, "1000\n"); | |
546 | } | |
547 | static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO, | |
548 | nouveau_hwmon_show_update_rate, | |
549 | NULL, 0); | |
550 | ||
11b7d895 MP |
551 | static ssize_t |
552 | nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr, | |
553 | char *buf) | |
554 | { | |
555 | struct drm_device *dev = dev_get_drvdata(d); | |
556 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
557 | struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; | |
a0b25635 | 558 | struct gpio_func gpio; |
11b7d895 MP |
559 | u32 cycles, cur, prev; |
560 | u64 start; | |
a0b25635 | 561 | int ret; |
11b7d895 | 562 | |
a0b25635 BS |
563 | ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio); |
564 | if (ret) | |
565 | return ret; | |
11b7d895 MP |
566 | |
567 | /* Monitor the GPIO input 0x3b for 250ms. | |
568 | * When the fan spins, it changes the value of GPIO FAN_SENSE. | |
569 | * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation. | |
570 | */ | |
571 | start = ptimer->read(dev); | |
a0b25635 | 572 | prev = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
573 | cycles = 0; |
574 | do { | |
a0b25635 | 575 | cur = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
576 | if (prev != cur) { |
577 | cycles++; | |
578 | prev = cur; | |
579 | } | |
580 | ||
581 | usleep_range(500, 1000); /* supports 0 < rpm < 7500 */ | |
582 | } while (ptimer->read(dev) - start < 250000000); | |
583 | ||
584 | /* interpolate to get rpm */ | |
585 | return sprintf(buf, "%i\n", cycles / 4 * 4 * 60); | |
586 | } | |
587 | static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input, | |
588 | NULL, 0); | |
589 | ||
590 | static ssize_t | |
591 | nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf) | |
592 | { | |
593 | struct drm_device *dev = dev_get_drvdata(d); | |
a175094c | 594 | int ret; |
11b7d895 | 595 | |
a175094c | 596 | ret = nouveau_pwmfan_get(dev); |
11b7d895 MP |
597 | if (ret < 0) |
598 | return ret; | |
599 | ||
600 | return sprintf(buf, "%i\n", ret); | |
601 | } | |
602 | ||
603 | static ssize_t | |
604 | nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a, | |
605 | const char *buf, size_t count) | |
606 | { | |
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; | |
610 | int ret = -ENODEV; | |
611 | long value; | |
612 | ||
613 | if (nouveau_perflvl_wr != 7777) | |
614 | return -EPERM; | |
615 | ||
ddb20055 | 616 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
617 | return -EINVAL; |
618 | ||
619 | if (value < pm->fan.min_duty) | |
620 | value = pm->fan.min_duty; | |
621 | if (value > pm->fan.max_duty) | |
622 | value = pm->fan.max_duty; | |
623 | ||
a175094c | 624 | ret = nouveau_pwmfan_set(dev, value); |
11b7d895 MP |
625 | if (ret) |
626 | return ret; | |
627 | ||
628 | return count; | |
629 | } | |
630 | ||
631 | static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR, | |
632 | nouveau_hwmon_get_pwm0, | |
633 | nouveau_hwmon_set_pwm0, 0); | |
634 | ||
635 | static ssize_t | |
636 | nouveau_hwmon_get_pwm0_min(struct device *d, | |
637 | struct device_attribute *a, char *buf) | |
638 | { | |
639 | struct drm_device *dev = dev_get_drvdata(d); | |
640 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
641 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
642 | ||
643 | return sprintf(buf, "%i\n", pm->fan.min_duty); | |
644 | } | |
645 | ||
646 | static ssize_t | |
647 | nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a, | |
648 | const char *buf, size_t count) | |
649 | { | |
650 | struct drm_device *dev = dev_get_drvdata(d); | |
651 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
652 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
653 | long value; | |
654 | ||
ddb20055 | 655 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
656 | return -EINVAL; |
657 | ||
658 | if (value < 0) | |
659 | value = 0; | |
660 | ||
661 | if (pm->fan.max_duty - value < 10) | |
662 | value = pm->fan.max_duty - 10; | |
663 | ||
664 | if (value < 10) | |
665 | pm->fan.min_duty = 10; | |
666 | else | |
667 | pm->fan.min_duty = value; | |
668 | ||
669 | return count; | |
670 | } | |
671 | ||
672 | static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR, | |
673 | nouveau_hwmon_get_pwm0_min, | |
674 | nouveau_hwmon_set_pwm0_min, 0); | |
675 | ||
676 | static ssize_t | |
677 | nouveau_hwmon_get_pwm0_max(struct device *d, | |
678 | struct device_attribute *a, char *buf) | |
679 | { | |
680 | struct drm_device *dev = dev_get_drvdata(d); | |
681 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
682 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
683 | ||
684 | return sprintf(buf, "%i\n", pm->fan.max_duty); | |
685 | } | |
686 | ||
687 | static ssize_t | |
688 | nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a, | |
689 | const char *buf, size_t count) | |
690 | { | |
691 | struct drm_device *dev = dev_get_drvdata(d); | |
692 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
693 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
694 | long value; | |
695 | ||
ddb20055 | 696 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
697 | return -EINVAL; |
698 | ||
699 | if (value < 0) | |
700 | value = 0; | |
701 | ||
702 | if (value - pm->fan.min_duty < 10) | |
703 | value = pm->fan.min_duty + 10; | |
704 | ||
705 | if (value > 100) | |
706 | pm->fan.max_duty = 100; | |
707 | else | |
708 | pm->fan.max_duty = value; | |
709 | ||
710 | return count; | |
711 | } | |
712 | ||
713 | static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR, | |
714 | nouveau_hwmon_get_pwm0_max, | |
715 | nouveau_hwmon_set_pwm0_max, 0); | |
716 | ||
34e9d85a MP |
717 | static struct attribute *hwmon_attributes[] = { |
718 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
719 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
720 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
721 | &sensor_dev_attr_name.dev_attr.attr, | |
722 | &sensor_dev_attr_update_rate.dev_attr.attr, | |
723 | NULL | |
724 | }; | |
11b7d895 MP |
725 | static struct attribute *hwmon_fan_rpm_attributes[] = { |
726 | &sensor_dev_attr_fan0_input.dev_attr.attr, | |
727 | NULL | |
728 | }; | |
729 | static struct attribute *hwmon_pwm_fan_attributes[] = { | |
730 | &sensor_dev_attr_pwm0.dev_attr.attr, | |
731 | &sensor_dev_attr_pwm0_min.dev_attr.attr, | |
732 | &sensor_dev_attr_pwm0_max.dev_attr.attr, | |
733 | NULL | |
734 | }; | |
34e9d85a MP |
735 | |
736 | static const struct attribute_group hwmon_attrgroup = { | |
737 | .attrs = hwmon_attributes, | |
738 | }; | |
11b7d895 MP |
739 | static const struct attribute_group hwmon_fan_rpm_attrgroup = { |
740 | .attrs = hwmon_fan_rpm_attributes, | |
741 | }; | |
742 | static const struct attribute_group hwmon_pwm_fan_attrgroup = { | |
743 | .attrs = hwmon_pwm_fan_attributes, | |
744 | }; | |
b54262f3 | 745 | #endif |
34e9d85a MP |
746 | |
747 | static int | |
748 | nouveau_hwmon_init(struct drm_device *dev) | |
749 | { | |
750 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
8155cac4 | 751 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
095f979a | 752 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 753 | struct device *hwmon_dev; |
11b7d895 | 754 | int ret = 0; |
34e9d85a | 755 | |
8155cac4 FJ |
756 | if (!pm->temp_get) |
757 | return -ENODEV; | |
34e9d85a MP |
758 | |
759 | hwmon_dev = hwmon_device_register(&dev->pdev->dev); | |
760 | if (IS_ERR(hwmon_dev)) { | |
761 | ret = PTR_ERR(hwmon_dev); | |
762 | NV_ERROR(dev, | |
763 | "Unable to register hwmon device: %d\n", ret); | |
764 | return ret; | |
765 | } | |
766 | dev_set_drvdata(hwmon_dev, dev); | |
11b7d895 MP |
767 | |
768 | /* default sysfs entries */ | |
07cfe0e7 | 769 | ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
34e9d85a | 770 | if (ret) { |
11b7d895 MP |
771 | if (ret) |
772 | goto error; | |
773 | } | |
774 | ||
775 | /* if the card has a pwm fan */ | |
776 | /*XXX: incorrect, need better detection for this, some boards have | |
777 | * the gpio entries for pwm fan control even when there's no | |
778 | * actual fan connected to it... therm table? */ | |
a175094c | 779 | if (nouveau_pwmfan_get(dev) >= 0) { |
11b7d895 MP |
780 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
781 | &hwmon_pwm_fan_attrgroup); | |
782 | if (ret) | |
783 | goto error; | |
784 | } | |
785 | ||
786 | /* if the card can read the fan rpm */ | |
a0b25635 | 787 | if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) { |
11b7d895 MP |
788 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
789 | &hwmon_fan_rpm_attrgroup); | |
790 | if (ret) | |
791 | goto error; | |
34e9d85a MP |
792 | } |
793 | ||
8155cac4 | 794 | pm->hwmon = hwmon_dev; |
11b7d895 | 795 | |
34e9d85a | 796 | return 0; |
11b7d895 MP |
797 | |
798 | error: | |
799 | NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret); | |
800 | hwmon_device_unregister(hwmon_dev); | |
801 | pm->hwmon = NULL; | |
802 | return ret; | |
803 | #else | |
804 | pm->hwmon = NULL; | |
805 | return 0; | |
806 | #endif | |
34e9d85a MP |
807 | } |
808 | ||
809 | static void | |
810 | nouveau_hwmon_fini(struct drm_device *dev) | |
811 | { | |
658e86ee | 812 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 813 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
8155cac4 | 814 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
34e9d85a | 815 | |
8155cac4 | 816 | if (pm->hwmon) { |
8c06a3e0 | 817 | sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
ddb20055 MP |
818 | sysfs_remove_group(&dev->pdev->dev.kobj, |
819 | &hwmon_pwm_fan_attrgroup); | |
820 | sysfs_remove_group(&dev->pdev->dev.kobj, | |
821 | &hwmon_fan_rpm_attrgroup); | |
11b7d895 | 822 | |
8155cac4 | 823 | hwmon_device_unregister(pm->hwmon); |
34e9d85a | 824 | } |
b54262f3 | 825 | #endif |
34e9d85a MP |
826 | } |
827 | ||
1f962797 | 828 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
829 | static int |
830 | nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data) | |
831 | { | |
832 | struct drm_nouveau_private *dev_priv = | |
833 | container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb); | |
834 | struct drm_device *dev = dev_priv->dev; | |
835 | struct acpi_bus_event *entry = (struct acpi_bus_event *)data; | |
836 | ||
837 | if (strcmp(entry->device_class, "ac_adapter") == 0) { | |
838 | bool ac = power_supply_is_system_supplied(); | |
839 | ||
840 | NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC"); | |
8d7bb400 | 841 | nouveau_pm_trigger(dev); |
6032649d BS |
842 | } |
843 | ||
844 | return NOTIFY_OK; | |
845 | } | |
846 | #endif | |
847 | ||
34e9d85a MP |
848 | int |
849 | nouveau_pm_init(struct drm_device *dev) | |
850 | { | |
851 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
852 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
853 | char info[256]; | |
854 | int ret, i; | |
855 | ||
68a64cad | 856 | /* parse aux tables from vbios */ |
34e9d85a | 857 | nouveau_volt_init(dev); |
34e9d85a MP |
858 | nouveau_temp_init(dev); |
859 | ||
68a64cad BS |
860 | /* determine current ("boot") performance level */ |
861 | ret = nouveau_pm_perflvl_get(dev, &pm->boot); | |
862 | if (ret) { | |
863 | NV_ERROR(dev, "failed to determine boot perflvl\n"); | |
864 | return ret; | |
865 | } | |
866 | ||
867 | strncpy(pm->boot.name, "boot", 4); | |
8d7bb400 BS |
868 | strncpy(pm->boot.profile.name, "boot", 4); |
869 | pm->boot.profile.func = &nouveau_pm_static_profile_func; | |
870 | ||
871 | INIT_LIST_HEAD(&pm->profiles); | |
872 | list_add(&pm->boot.profile.head, &pm->profiles); | |
873 | ||
874 | pm->profile_ac = &pm->boot.profile; | |
875 | pm->profile_dc = &pm->boot.profile; | |
25c53c10 | 876 | pm->profile = &pm->boot.profile; |
68a64cad BS |
877 | pm->cur = &pm->boot; |
878 | ||
879 | /* add performance levels from vbios */ | |
880 | nouveau_perf_init(dev); | |
881 | ||
882 | /* display available performance levels */ | |
34e9d85a MP |
883 | NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl); |
884 | for (i = 0; i < pm->nr_perflvl; i++) { | |
885 | nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info)); | |
93dccbed | 886 | NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info); |
34e9d85a MP |
887 | } |
888 | ||
68a64cad BS |
889 | nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info)); |
890 | NV_INFO(dev, "c:%s", info); | |
34e9d85a MP |
891 | |
892 | /* switch performance levels now if requested */ | |
8d7bb400 BS |
893 | if (nouveau_perflvl != NULL) |
894 | nouveau_pm_profile_set(dev, nouveau_perflvl); | |
34e9d85a | 895 | |
bc6389e4 MP |
896 | /* determine the current fan speed */ |
897 | pm->fan.percent = nouveau_pwmfan_get(dev); | |
898 | ||
34e9d85a MP |
899 | nouveau_sysfs_init(dev); |
900 | nouveau_hwmon_init(dev); | |
1f962797 | 901 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
902 | pm->acpi_nb.notifier_call = nouveau_pm_acpi_event; |
903 | register_acpi_notifier(&pm->acpi_nb); | |
904 | #endif | |
34e9d85a MP |
905 | |
906 | return 0; | |
907 | } | |
908 | ||
909 | void | |
910 | nouveau_pm_fini(struct drm_device *dev) | |
911 | { | |
912 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
913 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
25c53c10 BS |
914 | struct nouveau_pm_profile *profile, *tmp; |
915 | ||
916 | list_for_each_entry_safe(profile, tmp, &pm->profiles, head) { | |
917 | list_del(&profile->head); | |
918 | profile->func->destroy(profile); | |
919 | } | |
34e9d85a MP |
920 | |
921 | if (pm->cur != &pm->boot) | |
922 | nouveau_pm_perflvl_set(dev, &pm->boot); | |
330c5988 | 923 | |
7760fcb0 | 924 | nouveau_temp_fini(dev); |
330c5988 BS |
925 | nouveau_perf_fini(dev); |
926 | nouveau_volt_fini(dev); | |
34e9d85a | 927 | |
1f962797 | 928 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
929 | unregister_acpi_notifier(&pm->acpi_nb); |
930 | #endif | |
34e9d85a MP |
931 | nouveau_hwmon_fini(dev); |
932 | nouveau_sysfs_fini(dev); | |
330c5988 BS |
933 | } |
934 | ||
64f1c11a BS |
935 | void |
936 | nouveau_pm_resume(struct drm_device *dev) | |
937 | { | |
938 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
939 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
940 | struct nouveau_pm_level *perflvl; | |
941 | ||
317495b2 | 942 | if (!pm->cur || pm->cur == &pm->boot) |
64f1c11a BS |
943 | return; |
944 | ||
945 | perflvl = pm->cur; | |
946 | pm->cur = &pm->boot; | |
947 | nouveau_pm_perflvl_set(dev, perflvl); | |
bc6389e4 | 948 | nouveau_pwmfan_set(dev, pm->fan.percent); |
64f1c11a | 949 | } |