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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 | ||
25 | #include "drmP.h" | |
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 | ||
6f876986 BS |
171 | static int |
172 | nouveau_pm_profile_set(struct drm_device *dev, const char *profile) | |
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_level *perflvl = NULL; | |
b0103747 MP |
177 | u64 start_time; |
178 | int ret = 0; | |
ddb20055 | 179 | long pl; |
6f876986 BS |
180 | |
181 | /* safety precaution, for now */ | |
182 | if (nouveau_perflvl_wr != 7777) | |
183 | return -EPERM; | |
184 | ||
6f876986 BS |
185 | if (!strncmp(profile, "boot", 4)) |
186 | perflvl = &pm->boot; | |
187 | else { | |
6f876986 | 188 | int i; |
ddb20055 MP |
189 | if (kstrtol(profile, 10, &pl) == -EINVAL) |
190 | return -EINVAL; | |
6f876986 BS |
191 | |
192 | for (i = 0; i < pm->nr_perflvl; i++) { | |
193 | if (pm->perflvl[i].id == pl) { | |
194 | perflvl = &pm->perflvl[i]; | |
195 | break; | |
196 | } | |
197 | } | |
198 | ||
199 | if (!perflvl) | |
200 | return -EINVAL; | |
201 | } | |
202 | ||
b0103747 MP |
203 | NV_INFO(dev, "setting performance level: %s", profile); |
204 | start_time = nv04_timer_read(dev); | |
205 | ret = nouveau_pm_perflvl_set(dev, perflvl); | |
206 | if (!ret) { | |
207 | NV_INFO(dev, "> reclocking took %lluns\n\n", | |
208 | (nv04_timer_read(dev) - start_time)); | |
209 | } else { | |
210 | NV_INFO(dev, "> reclocking failed\n\n"); | |
211 | } | |
212 | ||
213 | return ret; | |
6f876986 BS |
214 | } |
215 | ||
330c5988 BS |
216 | static int |
217 | nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl) | |
218 | { | |
219 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
220 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
221 | int ret; | |
222 | ||
330c5988 BS |
223 | memset(perflvl, 0, sizeof(*perflvl)); |
224 | ||
ff2b6c6e BS |
225 | ret = pm->clocks_get(dev, perflvl); |
226 | if (ret) | |
227 | return ret; | |
330c5988 BS |
228 | |
229 | if (pm->voltage.supported && pm->voltage_get) { | |
230 | ret = pm->voltage_get(dev); | |
3b5565dd BS |
231 | if (ret > 0) { |
232 | perflvl->volt_min = ret; | |
233 | perflvl->volt_max = ret; | |
234 | } | |
330c5988 BS |
235 | } |
236 | ||
a175094c BS |
237 | ret = nouveau_pwmfan_get(dev); |
238 | if (ret > 0) | |
239 | perflvl->fanspeed = ret; | |
771e1035 | 240 | |
fd99fd61 | 241 | nouveau_mem_timing_read(dev, &perflvl->timing); |
330c5988 BS |
242 | return 0; |
243 | } | |
244 | ||
245 | static void | |
246 | nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len) | |
247 | { | |
085028ce | 248 | char c[16], s[16], v[32], f[16], m[16]; |
0fbb114a FJ |
249 | |
250 | c[0] = '\0'; | |
251 | if (perflvl->core) | |
252 | snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000); | |
330c5988 BS |
253 | |
254 | s[0] = '\0'; | |
255 | if (perflvl->shader) | |
256 | snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000); | |
257 | ||
93dccbed BS |
258 | m[0] = '\0'; |
259 | if (perflvl->memory) | |
260 | snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000); | |
261 | ||
330c5988 | 262 | v[0] = '\0'; |
3b5565dd BS |
263 | if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) { |
264 | snprintf(v, sizeof(v), " voltage %dmV-%dmV", | |
265 | perflvl->volt_min / 1000, perflvl->volt_max / 1000); | |
266 | } else | |
267 | if (perflvl->volt_min) { | |
268 | snprintf(v, sizeof(v), " voltage %dmV", | |
269 | perflvl->volt_min / 1000); | |
270 | } | |
330c5988 BS |
271 | |
272 | f[0] = '\0'; | |
273 | if (perflvl->fanspeed) | |
274 | snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed); | |
275 | ||
085028ce | 276 | snprintf(ptr, len, "%s%s%s%s%s\n", c, s, m, v, f); |
330c5988 BS |
277 | } |
278 | ||
279 | static ssize_t | |
280 | nouveau_pm_get_perflvl_info(struct device *d, | |
281 | struct device_attribute *a, char *buf) | |
282 | { | |
283 | struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a; | |
284 | char *ptr = buf; | |
285 | int len = PAGE_SIZE; | |
286 | ||
93dccbed | 287 | snprintf(ptr, len, "%d:", perflvl->id); |
330c5988 BS |
288 | ptr += strlen(buf); |
289 | len -= strlen(buf); | |
290 | ||
291 | nouveau_pm_perflvl_info(perflvl, ptr, len); | |
292 | return strlen(buf); | |
293 | } | |
294 | ||
295 | static ssize_t | |
296 | nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf) | |
297 | { | |
34e9d85a | 298 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
330c5988 BS |
299 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
300 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
301 | struct nouveau_pm_level cur; | |
302 | int len = PAGE_SIZE, ret; | |
303 | char *ptr = buf; | |
304 | ||
305 | if (!pm->cur) | |
306 | snprintf(ptr, len, "setting: boot\n"); | |
307 | else if (pm->cur == &pm->boot) | |
93dccbed | 308 | snprintf(ptr, len, "setting: boot\nc:"); |
330c5988 | 309 | else |
93dccbed | 310 | snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id); |
330c5988 BS |
311 | ptr += strlen(buf); |
312 | len -= strlen(buf); | |
313 | ||
314 | ret = nouveau_pm_perflvl_get(dev, &cur); | |
315 | if (ret == 0) | |
316 | nouveau_pm_perflvl_info(&cur, ptr, len); | |
317 | return strlen(buf); | |
318 | } | |
319 | ||
320 | static ssize_t | |
321 | nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a, | |
322 | const char *buf, size_t count) | |
323 | { | |
34e9d85a | 324 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
6f876986 BS |
325 | int ret; |
326 | ||
327 | ret = nouveau_pm_profile_set(dev, buf); | |
328 | if (ret) | |
329 | return ret; | |
330 | return strlen(buf); | |
330c5988 BS |
331 | } |
332 | ||
5c4abd09 FJ |
333 | static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR, |
334 | nouveau_pm_get_perflvl, nouveau_pm_set_perflvl); | |
330c5988 | 335 | |
34e9d85a MP |
336 | static int |
337 | nouveau_sysfs_init(struct drm_device *dev) | |
330c5988 BS |
338 | { |
339 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
340 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
341 | struct device *d = &dev->pdev->dev; | |
330c5988 BS |
342 | int ret, i; |
343 | ||
330c5988 BS |
344 | ret = device_create_file(d, &dev_attr_performance_level); |
345 | if (ret) | |
346 | return ret; | |
347 | ||
348 | for (i = 0; i < pm->nr_perflvl; i++) { | |
349 | struct nouveau_pm_level *perflvl = &pm->perflvl[i]; | |
350 | ||
351 | perflvl->dev_attr.attr.name = perflvl->name; | |
352 | perflvl->dev_attr.attr.mode = S_IRUGO; | |
353 | perflvl->dev_attr.show = nouveau_pm_get_perflvl_info; | |
354 | perflvl->dev_attr.store = NULL; | |
355 | sysfs_attr_init(&perflvl->dev_attr.attr); | |
356 | ||
357 | ret = device_create_file(d, &perflvl->dev_attr); | |
358 | if (ret) { | |
359 | NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n", | |
360 | perflvl->id, i); | |
361 | perflvl->dev_attr.attr.name = NULL; | |
362 | nouveau_pm_fini(dev); | |
363 | return ret; | |
364 | } | |
365 | } | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
34e9d85a MP |
370 | static void |
371 | nouveau_sysfs_fini(struct drm_device *dev) | |
330c5988 BS |
372 | { |
373 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
374 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
375 | struct device *d = &dev->pdev->dev; | |
376 | int i; | |
377 | ||
378 | device_remove_file(d, &dev_attr_performance_level); | |
379 | for (i = 0; i < pm->nr_perflvl; i++) { | |
380 | struct nouveau_pm_level *pl = &pm->perflvl[i]; | |
381 | ||
382 | if (!pl->dev_attr.attr.name) | |
383 | break; | |
384 | ||
385 | device_remove_file(d, &pl->dev_attr); | |
386 | } | |
34e9d85a MP |
387 | } |
388 | ||
658e86ee | 389 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a MP |
390 | static ssize_t |
391 | nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf) | |
392 | { | |
393 | struct drm_device *dev = dev_get_drvdata(d); | |
8155cac4 FJ |
394 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
395 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
34e9d85a | 396 | |
8155cac4 | 397 | return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000); |
34e9d85a MP |
398 | } |
399 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp, | |
400 | NULL, 0); | |
401 | ||
402 | static ssize_t | |
403 | nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf) | |
404 | { | |
405 | struct drm_device *dev = dev_get_drvdata(d); | |
406 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
407 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
408 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
409 | ||
410 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000); | |
411 | } | |
412 | static ssize_t | |
413 | nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a, | |
414 | const char *buf, size_t count) | |
415 | { | |
416 | struct drm_device *dev = dev_get_drvdata(d); | |
417 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
418 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
419 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
420 | long value; | |
421 | ||
ddb20055 | 422 | if (kstrtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
423 | return count; |
424 | ||
425 | temp->down_clock = value/1000; | |
426 | ||
427 | nouveau_temp_safety_checks(dev); | |
428 | ||
429 | return count; | |
430 | } | |
431 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp, | |
432 | nouveau_hwmon_set_max_temp, | |
433 | 0); | |
434 | ||
435 | static ssize_t | |
436 | nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a, | |
437 | char *buf) | |
438 | { | |
439 | struct drm_device *dev = dev_get_drvdata(d); | |
440 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
441 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
442 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
443 | ||
444 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000); | |
445 | } | |
446 | static ssize_t | |
447 | nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a, | |
448 | const char *buf, | |
449 | size_t count) | |
450 | { | |
451 | struct drm_device *dev = dev_get_drvdata(d); | |
452 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
453 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
454 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
455 | long value; | |
456 | ||
ddb20055 | 457 | if (kstrtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
458 | return count; |
459 | ||
460 | temp->critical = value/1000; | |
461 | ||
462 | nouveau_temp_safety_checks(dev); | |
463 | ||
464 | return count; | |
465 | } | |
466 | static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR, | |
467 | nouveau_hwmon_critical_temp, | |
468 | nouveau_hwmon_set_critical_temp, | |
469 | 0); | |
470 | ||
471 | static ssize_t nouveau_hwmon_show_name(struct device *dev, | |
472 | struct device_attribute *attr, | |
473 | char *buf) | |
474 | { | |
475 | return sprintf(buf, "nouveau\n"); | |
476 | } | |
477 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0); | |
478 | ||
479 | static ssize_t nouveau_hwmon_show_update_rate(struct device *dev, | |
480 | struct device_attribute *attr, | |
481 | char *buf) | |
482 | { | |
483 | return sprintf(buf, "1000\n"); | |
484 | } | |
485 | static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO, | |
486 | nouveau_hwmon_show_update_rate, | |
487 | NULL, 0); | |
488 | ||
11b7d895 MP |
489 | static ssize_t |
490 | nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr, | |
491 | char *buf) | |
492 | { | |
493 | struct drm_device *dev = dev_get_drvdata(d); | |
494 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
495 | struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; | |
a0b25635 | 496 | struct gpio_func gpio; |
11b7d895 MP |
497 | u32 cycles, cur, prev; |
498 | u64 start; | |
a0b25635 | 499 | int ret; |
11b7d895 | 500 | |
a0b25635 BS |
501 | ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio); |
502 | if (ret) | |
503 | return ret; | |
11b7d895 MP |
504 | |
505 | /* Monitor the GPIO input 0x3b for 250ms. | |
506 | * When the fan spins, it changes the value of GPIO FAN_SENSE. | |
507 | * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation. | |
508 | */ | |
509 | start = ptimer->read(dev); | |
a0b25635 | 510 | prev = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
511 | cycles = 0; |
512 | do { | |
a0b25635 | 513 | cur = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
514 | if (prev != cur) { |
515 | cycles++; | |
516 | prev = cur; | |
517 | } | |
518 | ||
519 | usleep_range(500, 1000); /* supports 0 < rpm < 7500 */ | |
520 | } while (ptimer->read(dev) - start < 250000000); | |
521 | ||
522 | /* interpolate to get rpm */ | |
523 | return sprintf(buf, "%i\n", cycles / 4 * 4 * 60); | |
524 | } | |
525 | static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input, | |
526 | NULL, 0); | |
527 | ||
528 | static ssize_t | |
529 | nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf) | |
530 | { | |
531 | struct drm_device *dev = dev_get_drvdata(d); | |
a175094c | 532 | int ret; |
11b7d895 | 533 | |
a175094c | 534 | ret = nouveau_pwmfan_get(dev); |
11b7d895 MP |
535 | if (ret < 0) |
536 | return ret; | |
537 | ||
538 | return sprintf(buf, "%i\n", ret); | |
539 | } | |
540 | ||
541 | static ssize_t | |
542 | nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a, | |
543 | const char *buf, size_t count) | |
544 | { | |
545 | struct drm_device *dev = dev_get_drvdata(d); | |
546 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
547 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
548 | int ret = -ENODEV; | |
549 | long value; | |
550 | ||
551 | if (nouveau_perflvl_wr != 7777) | |
552 | return -EPERM; | |
553 | ||
ddb20055 | 554 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
555 | return -EINVAL; |
556 | ||
557 | if (value < pm->fan.min_duty) | |
558 | value = pm->fan.min_duty; | |
559 | if (value > pm->fan.max_duty) | |
560 | value = pm->fan.max_duty; | |
561 | ||
a175094c | 562 | ret = nouveau_pwmfan_set(dev, value); |
11b7d895 MP |
563 | if (ret) |
564 | return ret; | |
565 | ||
566 | return count; | |
567 | } | |
568 | ||
569 | static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR, | |
570 | nouveau_hwmon_get_pwm0, | |
571 | nouveau_hwmon_set_pwm0, 0); | |
572 | ||
573 | static ssize_t | |
574 | nouveau_hwmon_get_pwm0_min(struct device *d, | |
575 | struct device_attribute *a, char *buf) | |
576 | { | |
577 | struct drm_device *dev = dev_get_drvdata(d); | |
578 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
579 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
580 | ||
581 | return sprintf(buf, "%i\n", pm->fan.min_duty); | |
582 | } | |
583 | ||
584 | static ssize_t | |
585 | nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a, | |
586 | const char *buf, size_t count) | |
587 | { | |
588 | struct drm_device *dev = dev_get_drvdata(d); | |
589 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
590 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
591 | long value; | |
592 | ||
ddb20055 | 593 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
594 | return -EINVAL; |
595 | ||
596 | if (value < 0) | |
597 | value = 0; | |
598 | ||
599 | if (pm->fan.max_duty - value < 10) | |
600 | value = pm->fan.max_duty - 10; | |
601 | ||
602 | if (value < 10) | |
603 | pm->fan.min_duty = 10; | |
604 | else | |
605 | pm->fan.min_duty = value; | |
606 | ||
607 | return count; | |
608 | } | |
609 | ||
610 | static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR, | |
611 | nouveau_hwmon_get_pwm0_min, | |
612 | nouveau_hwmon_set_pwm0_min, 0); | |
613 | ||
614 | static ssize_t | |
615 | nouveau_hwmon_get_pwm0_max(struct device *d, | |
616 | struct device_attribute *a, char *buf) | |
617 | { | |
618 | struct drm_device *dev = dev_get_drvdata(d); | |
619 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
620 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
621 | ||
622 | return sprintf(buf, "%i\n", pm->fan.max_duty); | |
623 | } | |
624 | ||
625 | static ssize_t | |
626 | nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a, | |
627 | const char *buf, size_t count) | |
628 | { | |
629 | struct drm_device *dev = dev_get_drvdata(d); | |
630 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
631 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
632 | long value; | |
633 | ||
ddb20055 | 634 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
635 | return -EINVAL; |
636 | ||
637 | if (value < 0) | |
638 | value = 0; | |
639 | ||
640 | if (value - pm->fan.min_duty < 10) | |
641 | value = pm->fan.min_duty + 10; | |
642 | ||
643 | if (value > 100) | |
644 | pm->fan.max_duty = 100; | |
645 | else | |
646 | pm->fan.max_duty = value; | |
647 | ||
648 | return count; | |
649 | } | |
650 | ||
651 | static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR, | |
652 | nouveau_hwmon_get_pwm0_max, | |
653 | nouveau_hwmon_set_pwm0_max, 0); | |
654 | ||
34e9d85a MP |
655 | static struct attribute *hwmon_attributes[] = { |
656 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
657 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
658 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
659 | &sensor_dev_attr_name.dev_attr.attr, | |
660 | &sensor_dev_attr_update_rate.dev_attr.attr, | |
661 | NULL | |
662 | }; | |
11b7d895 MP |
663 | static struct attribute *hwmon_fan_rpm_attributes[] = { |
664 | &sensor_dev_attr_fan0_input.dev_attr.attr, | |
665 | NULL | |
666 | }; | |
667 | static struct attribute *hwmon_pwm_fan_attributes[] = { | |
668 | &sensor_dev_attr_pwm0.dev_attr.attr, | |
669 | &sensor_dev_attr_pwm0_min.dev_attr.attr, | |
670 | &sensor_dev_attr_pwm0_max.dev_attr.attr, | |
671 | NULL | |
672 | }; | |
34e9d85a MP |
673 | |
674 | static const struct attribute_group hwmon_attrgroup = { | |
675 | .attrs = hwmon_attributes, | |
676 | }; | |
11b7d895 MP |
677 | static const struct attribute_group hwmon_fan_rpm_attrgroup = { |
678 | .attrs = hwmon_fan_rpm_attributes, | |
679 | }; | |
680 | static const struct attribute_group hwmon_pwm_fan_attrgroup = { | |
681 | .attrs = hwmon_pwm_fan_attributes, | |
682 | }; | |
b54262f3 | 683 | #endif |
34e9d85a MP |
684 | |
685 | static int | |
686 | nouveau_hwmon_init(struct drm_device *dev) | |
687 | { | |
688 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
8155cac4 | 689 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
095f979a | 690 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 691 | struct device *hwmon_dev; |
11b7d895 | 692 | int ret = 0; |
34e9d85a | 693 | |
8155cac4 FJ |
694 | if (!pm->temp_get) |
695 | return -ENODEV; | |
34e9d85a MP |
696 | |
697 | hwmon_dev = hwmon_device_register(&dev->pdev->dev); | |
698 | if (IS_ERR(hwmon_dev)) { | |
699 | ret = PTR_ERR(hwmon_dev); | |
700 | NV_ERROR(dev, | |
701 | "Unable to register hwmon device: %d\n", ret); | |
702 | return ret; | |
703 | } | |
704 | dev_set_drvdata(hwmon_dev, dev); | |
11b7d895 MP |
705 | |
706 | /* default sysfs entries */ | |
07cfe0e7 | 707 | ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
34e9d85a | 708 | if (ret) { |
11b7d895 MP |
709 | if (ret) |
710 | goto error; | |
711 | } | |
712 | ||
713 | /* if the card has a pwm fan */ | |
714 | /*XXX: incorrect, need better detection for this, some boards have | |
715 | * the gpio entries for pwm fan control even when there's no | |
716 | * actual fan connected to it... therm table? */ | |
a175094c | 717 | if (nouveau_pwmfan_get(dev) >= 0) { |
11b7d895 MP |
718 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
719 | &hwmon_pwm_fan_attrgroup); | |
720 | if (ret) | |
721 | goto error; | |
722 | } | |
723 | ||
724 | /* if the card can read the fan rpm */ | |
a0b25635 | 725 | if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) { |
11b7d895 MP |
726 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
727 | &hwmon_fan_rpm_attrgroup); | |
728 | if (ret) | |
729 | goto error; | |
34e9d85a MP |
730 | } |
731 | ||
8155cac4 | 732 | pm->hwmon = hwmon_dev; |
11b7d895 | 733 | |
34e9d85a | 734 | return 0; |
11b7d895 MP |
735 | |
736 | error: | |
737 | NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret); | |
738 | hwmon_device_unregister(hwmon_dev); | |
739 | pm->hwmon = NULL; | |
740 | return ret; | |
741 | #else | |
742 | pm->hwmon = NULL; | |
743 | return 0; | |
744 | #endif | |
34e9d85a MP |
745 | } |
746 | ||
747 | static void | |
748 | nouveau_hwmon_fini(struct drm_device *dev) | |
749 | { | |
658e86ee | 750 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 751 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
8155cac4 | 752 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
34e9d85a | 753 | |
8155cac4 | 754 | if (pm->hwmon) { |
8c06a3e0 | 755 | sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
ddb20055 MP |
756 | sysfs_remove_group(&dev->pdev->dev.kobj, |
757 | &hwmon_pwm_fan_attrgroup); | |
758 | sysfs_remove_group(&dev->pdev->dev.kobj, | |
759 | &hwmon_fan_rpm_attrgroup); | |
11b7d895 | 760 | |
8155cac4 | 761 | hwmon_device_unregister(pm->hwmon); |
34e9d85a | 762 | } |
b54262f3 | 763 | #endif |
34e9d85a MP |
764 | } |
765 | ||
1f962797 | 766 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
767 | static int |
768 | nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data) | |
769 | { | |
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; | |
774 | ||
775 | if (strcmp(entry->device_class, "ac_adapter") == 0) { | |
776 | bool ac = power_supply_is_system_supplied(); | |
777 | ||
778 | NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC"); | |
779 | } | |
780 | ||
781 | return NOTIFY_OK; | |
782 | } | |
783 | #endif | |
784 | ||
34e9d85a MP |
785 | int |
786 | nouveau_pm_init(struct drm_device *dev) | |
787 | { | |
788 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
789 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
790 | char info[256]; | |
791 | int ret, i; | |
792 | ||
68a64cad | 793 | /* parse aux tables from vbios */ |
34e9d85a | 794 | nouveau_volt_init(dev); |
34e9d85a MP |
795 | nouveau_temp_init(dev); |
796 | ||
68a64cad BS |
797 | /* determine current ("boot") performance level */ |
798 | ret = nouveau_pm_perflvl_get(dev, &pm->boot); | |
799 | if (ret) { | |
800 | NV_ERROR(dev, "failed to determine boot perflvl\n"); | |
801 | return ret; | |
802 | } | |
803 | ||
804 | strncpy(pm->boot.name, "boot", 4); | |
68a64cad BS |
805 | pm->cur = &pm->boot; |
806 | ||
807 | /* add performance levels from vbios */ | |
808 | nouveau_perf_init(dev); | |
809 | ||
810 | /* display available performance levels */ | |
34e9d85a MP |
811 | NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl); |
812 | for (i = 0; i < pm->nr_perflvl; i++) { | |
813 | nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info)); | |
93dccbed | 814 | NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info); |
34e9d85a MP |
815 | } |
816 | ||
68a64cad BS |
817 | nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info)); |
818 | NV_INFO(dev, "c:%s", info); | |
34e9d85a MP |
819 | |
820 | /* switch performance levels now if requested */ | |
821 | if (nouveau_perflvl != NULL) { | |
822 | ret = nouveau_pm_profile_set(dev, nouveau_perflvl); | |
823 | if (ret) { | |
824 | NV_ERROR(dev, "error setting perflvl \"%s\": %d\n", | |
825 | nouveau_perflvl, ret); | |
826 | } | |
827 | } | |
828 | ||
bc6389e4 MP |
829 | /* determine the current fan speed */ |
830 | pm->fan.percent = nouveau_pwmfan_get(dev); | |
831 | ||
34e9d85a MP |
832 | nouveau_sysfs_init(dev); |
833 | nouveau_hwmon_init(dev); | |
1f962797 | 834 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
835 | pm->acpi_nb.notifier_call = nouveau_pm_acpi_event; |
836 | register_acpi_notifier(&pm->acpi_nb); | |
837 | #endif | |
34e9d85a MP |
838 | |
839 | return 0; | |
840 | } | |
841 | ||
842 | void | |
843 | nouveau_pm_fini(struct drm_device *dev) | |
844 | { | |
845 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
846 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
847 | ||
848 | if (pm->cur != &pm->boot) | |
849 | nouveau_pm_perflvl_set(dev, &pm->boot); | |
330c5988 | 850 | |
7760fcb0 | 851 | nouveau_temp_fini(dev); |
330c5988 BS |
852 | nouveau_perf_fini(dev); |
853 | nouveau_volt_fini(dev); | |
34e9d85a | 854 | |
1f962797 | 855 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
856 | unregister_acpi_notifier(&pm->acpi_nb); |
857 | #endif | |
34e9d85a MP |
858 | nouveau_hwmon_fini(dev); |
859 | nouveau_sysfs_fini(dev); | |
330c5988 BS |
860 | } |
861 | ||
64f1c11a BS |
862 | void |
863 | nouveau_pm_resume(struct drm_device *dev) | |
864 | { | |
865 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
866 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
867 | struct nouveau_pm_level *perflvl; | |
868 | ||
317495b2 | 869 | if (!pm->cur || pm->cur == &pm->boot) |
64f1c11a BS |
870 | return; |
871 | ||
872 | perflvl = pm->cur; | |
873 | pm->cur = &pm->boot; | |
874 | nouveau_pm_perflvl_set(dev, perflvl); | |
bc6389e4 | 875 | nouveau_pwmfan_set(dev, pm->fan.percent); |
64f1c11a | 876 | } |