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Commit | Line | Data |
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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 | { | |
93dccbed | 248 | char c[16], s[16], v[32], f[16], t[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 | ||
e614b2e7 MP |
276 | t[0] = '\0'; |
277 | if (perflvl->timing) | |
278 | snprintf(t, sizeof(t), " timing %d", perflvl->timing->id); | |
279 | ||
93dccbed | 280 | snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f); |
330c5988 BS |
281 | } |
282 | ||
283 | static ssize_t | |
284 | nouveau_pm_get_perflvl_info(struct device *d, | |
285 | struct device_attribute *a, char *buf) | |
286 | { | |
287 | struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a; | |
288 | char *ptr = buf; | |
289 | int len = PAGE_SIZE; | |
290 | ||
93dccbed | 291 | snprintf(ptr, len, "%d:", perflvl->id); |
330c5988 BS |
292 | ptr += strlen(buf); |
293 | len -= strlen(buf); | |
294 | ||
295 | nouveau_pm_perflvl_info(perflvl, ptr, len); | |
296 | return strlen(buf); | |
297 | } | |
298 | ||
299 | static ssize_t | |
300 | nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf) | |
301 | { | |
34e9d85a | 302 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
330c5988 BS |
303 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
304 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
305 | struct nouveau_pm_level cur; | |
306 | int len = PAGE_SIZE, ret; | |
307 | char *ptr = buf; | |
308 | ||
309 | if (!pm->cur) | |
310 | snprintf(ptr, len, "setting: boot\n"); | |
311 | else if (pm->cur == &pm->boot) | |
93dccbed | 312 | snprintf(ptr, len, "setting: boot\nc:"); |
330c5988 | 313 | else |
93dccbed | 314 | snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id); |
330c5988 BS |
315 | ptr += strlen(buf); |
316 | len -= strlen(buf); | |
317 | ||
318 | ret = nouveau_pm_perflvl_get(dev, &cur); | |
319 | if (ret == 0) | |
320 | nouveau_pm_perflvl_info(&cur, ptr, len); | |
321 | return strlen(buf); | |
322 | } | |
323 | ||
324 | static ssize_t | |
325 | nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a, | |
326 | const char *buf, size_t count) | |
327 | { | |
34e9d85a | 328 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
6f876986 BS |
329 | int ret; |
330 | ||
331 | ret = nouveau_pm_profile_set(dev, buf); | |
332 | if (ret) | |
333 | return ret; | |
334 | return strlen(buf); | |
330c5988 BS |
335 | } |
336 | ||
5c4abd09 FJ |
337 | static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR, |
338 | nouveau_pm_get_perflvl, nouveau_pm_set_perflvl); | |
330c5988 | 339 | |
34e9d85a MP |
340 | static int |
341 | nouveau_sysfs_init(struct drm_device *dev) | |
330c5988 BS |
342 | { |
343 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
344 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
345 | struct device *d = &dev->pdev->dev; | |
330c5988 BS |
346 | int ret, i; |
347 | ||
330c5988 BS |
348 | ret = device_create_file(d, &dev_attr_performance_level); |
349 | if (ret) | |
350 | return ret; | |
351 | ||
352 | for (i = 0; i < pm->nr_perflvl; i++) { | |
353 | struct nouveau_pm_level *perflvl = &pm->perflvl[i]; | |
354 | ||
355 | perflvl->dev_attr.attr.name = perflvl->name; | |
356 | perflvl->dev_attr.attr.mode = S_IRUGO; | |
357 | perflvl->dev_attr.show = nouveau_pm_get_perflvl_info; | |
358 | perflvl->dev_attr.store = NULL; | |
359 | sysfs_attr_init(&perflvl->dev_attr.attr); | |
360 | ||
361 | ret = device_create_file(d, &perflvl->dev_attr); | |
362 | if (ret) { | |
363 | NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n", | |
364 | perflvl->id, i); | |
365 | perflvl->dev_attr.attr.name = NULL; | |
366 | nouveau_pm_fini(dev); | |
367 | return ret; | |
368 | } | |
369 | } | |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
34e9d85a MP |
374 | static void |
375 | nouveau_sysfs_fini(struct drm_device *dev) | |
330c5988 BS |
376 | { |
377 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
378 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
379 | struct device *d = &dev->pdev->dev; | |
380 | int i; | |
381 | ||
382 | device_remove_file(d, &dev_attr_performance_level); | |
383 | for (i = 0; i < pm->nr_perflvl; i++) { | |
384 | struct nouveau_pm_level *pl = &pm->perflvl[i]; | |
385 | ||
386 | if (!pl->dev_attr.attr.name) | |
387 | break; | |
388 | ||
389 | device_remove_file(d, &pl->dev_attr); | |
390 | } | |
34e9d85a MP |
391 | } |
392 | ||
658e86ee | 393 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a MP |
394 | static ssize_t |
395 | nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf) | |
396 | { | |
397 | struct drm_device *dev = dev_get_drvdata(d); | |
8155cac4 FJ |
398 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
399 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
34e9d85a | 400 | |
8155cac4 | 401 | return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000); |
34e9d85a MP |
402 | } |
403 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp, | |
404 | NULL, 0); | |
405 | ||
406 | static ssize_t | |
407 | nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf) | |
408 | { | |
409 | struct drm_device *dev = dev_get_drvdata(d); | |
410 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
411 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
412 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
413 | ||
414 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000); | |
415 | } | |
416 | static ssize_t | |
417 | nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a, | |
418 | const char *buf, size_t count) | |
419 | { | |
420 | struct drm_device *dev = dev_get_drvdata(d); | |
421 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
422 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
423 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
424 | long value; | |
425 | ||
ddb20055 | 426 | if (kstrtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
427 | return count; |
428 | ||
429 | temp->down_clock = value/1000; | |
430 | ||
431 | nouveau_temp_safety_checks(dev); | |
432 | ||
433 | return count; | |
434 | } | |
435 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp, | |
436 | nouveau_hwmon_set_max_temp, | |
437 | 0); | |
438 | ||
439 | static ssize_t | |
440 | nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a, | |
441 | char *buf) | |
442 | { | |
443 | struct drm_device *dev = dev_get_drvdata(d); | |
444 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
445 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
446 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
447 | ||
448 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000); | |
449 | } | |
450 | static ssize_t | |
451 | nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a, | |
452 | const char *buf, | |
453 | size_t count) | |
454 | { | |
455 | struct drm_device *dev = dev_get_drvdata(d); | |
456 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
457 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
458 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
459 | long value; | |
460 | ||
ddb20055 | 461 | if (kstrtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
462 | return count; |
463 | ||
464 | temp->critical = value/1000; | |
465 | ||
466 | nouveau_temp_safety_checks(dev); | |
467 | ||
468 | return count; | |
469 | } | |
470 | static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR, | |
471 | nouveau_hwmon_critical_temp, | |
472 | nouveau_hwmon_set_critical_temp, | |
473 | 0); | |
474 | ||
475 | static ssize_t nouveau_hwmon_show_name(struct device *dev, | |
476 | struct device_attribute *attr, | |
477 | char *buf) | |
478 | { | |
479 | return sprintf(buf, "nouveau\n"); | |
480 | } | |
481 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0); | |
482 | ||
483 | static ssize_t nouveau_hwmon_show_update_rate(struct device *dev, | |
484 | struct device_attribute *attr, | |
485 | char *buf) | |
486 | { | |
487 | return sprintf(buf, "1000\n"); | |
488 | } | |
489 | static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO, | |
490 | nouveau_hwmon_show_update_rate, | |
491 | NULL, 0); | |
492 | ||
11b7d895 MP |
493 | static ssize_t |
494 | nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr, | |
495 | char *buf) | |
496 | { | |
497 | struct drm_device *dev = dev_get_drvdata(d); | |
498 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
499 | struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; | |
a0b25635 | 500 | struct gpio_func gpio; |
11b7d895 MP |
501 | u32 cycles, cur, prev; |
502 | u64 start; | |
a0b25635 | 503 | int ret; |
11b7d895 | 504 | |
a0b25635 BS |
505 | ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio); |
506 | if (ret) | |
507 | return ret; | |
11b7d895 MP |
508 | |
509 | /* Monitor the GPIO input 0x3b for 250ms. | |
510 | * When the fan spins, it changes the value of GPIO FAN_SENSE. | |
511 | * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation. | |
512 | */ | |
513 | start = ptimer->read(dev); | |
a0b25635 | 514 | prev = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
515 | cycles = 0; |
516 | do { | |
a0b25635 | 517 | cur = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
518 | if (prev != cur) { |
519 | cycles++; | |
520 | prev = cur; | |
521 | } | |
522 | ||
523 | usleep_range(500, 1000); /* supports 0 < rpm < 7500 */ | |
524 | } while (ptimer->read(dev) - start < 250000000); | |
525 | ||
526 | /* interpolate to get rpm */ | |
527 | return sprintf(buf, "%i\n", cycles / 4 * 4 * 60); | |
528 | } | |
529 | static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input, | |
530 | NULL, 0); | |
531 | ||
532 | static ssize_t | |
533 | nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf) | |
534 | { | |
535 | struct drm_device *dev = dev_get_drvdata(d); | |
a175094c | 536 | int ret; |
11b7d895 | 537 | |
a175094c | 538 | ret = nouveau_pwmfan_get(dev); |
11b7d895 MP |
539 | if (ret < 0) |
540 | return ret; | |
541 | ||
542 | return sprintf(buf, "%i\n", ret); | |
543 | } | |
544 | ||
545 | static ssize_t | |
546 | nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a, | |
547 | const char *buf, size_t count) | |
548 | { | |
549 | struct drm_device *dev = dev_get_drvdata(d); | |
550 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
551 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
552 | int ret = -ENODEV; | |
553 | long value; | |
554 | ||
555 | if (nouveau_perflvl_wr != 7777) | |
556 | return -EPERM; | |
557 | ||
ddb20055 | 558 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
559 | return -EINVAL; |
560 | ||
561 | if (value < pm->fan.min_duty) | |
562 | value = pm->fan.min_duty; | |
563 | if (value > pm->fan.max_duty) | |
564 | value = pm->fan.max_duty; | |
565 | ||
a175094c | 566 | ret = nouveau_pwmfan_set(dev, value); |
11b7d895 MP |
567 | if (ret) |
568 | return ret; | |
569 | ||
570 | return count; | |
571 | } | |
572 | ||
573 | static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR, | |
574 | nouveau_hwmon_get_pwm0, | |
575 | nouveau_hwmon_set_pwm0, 0); | |
576 | ||
577 | static ssize_t | |
578 | nouveau_hwmon_get_pwm0_min(struct device *d, | |
579 | struct device_attribute *a, char *buf) | |
580 | { | |
581 | struct drm_device *dev = dev_get_drvdata(d); | |
582 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
583 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
584 | ||
585 | return sprintf(buf, "%i\n", pm->fan.min_duty); | |
586 | } | |
587 | ||
588 | static ssize_t | |
589 | nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a, | |
590 | const char *buf, size_t count) | |
591 | { | |
592 | struct drm_device *dev = dev_get_drvdata(d); | |
593 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
594 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
595 | long value; | |
596 | ||
ddb20055 | 597 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
598 | return -EINVAL; |
599 | ||
600 | if (value < 0) | |
601 | value = 0; | |
602 | ||
603 | if (pm->fan.max_duty - value < 10) | |
604 | value = pm->fan.max_duty - 10; | |
605 | ||
606 | if (value < 10) | |
607 | pm->fan.min_duty = 10; | |
608 | else | |
609 | pm->fan.min_duty = value; | |
610 | ||
611 | return count; | |
612 | } | |
613 | ||
614 | static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR, | |
615 | nouveau_hwmon_get_pwm0_min, | |
616 | nouveau_hwmon_set_pwm0_min, 0); | |
617 | ||
618 | static ssize_t | |
619 | nouveau_hwmon_get_pwm0_max(struct device *d, | |
620 | struct device_attribute *a, char *buf) | |
621 | { | |
622 | struct drm_device *dev = dev_get_drvdata(d); | |
623 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
624 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
625 | ||
626 | return sprintf(buf, "%i\n", pm->fan.max_duty); | |
627 | } | |
628 | ||
629 | static ssize_t | |
630 | nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a, | |
631 | const char *buf, size_t count) | |
632 | { | |
633 | struct drm_device *dev = dev_get_drvdata(d); | |
634 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
635 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
636 | long value; | |
637 | ||
ddb20055 | 638 | if (kstrtol(buf, 10, &value) == -EINVAL) |
11b7d895 MP |
639 | return -EINVAL; |
640 | ||
641 | if (value < 0) | |
642 | value = 0; | |
643 | ||
644 | if (value - pm->fan.min_duty < 10) | |
645 | value = pm->fan.min_duty + 10; | |
646 | ||
647 | if (value > 100) | |
648 | pm->fan.max_duty = 100; | |
649 | else | |
650 | pm->fan.max_duty = value; | |
651 | ||
652 | return count; | |
653 | } | |
654 | ||
655 | static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR, | |
656 | nouveau_hwmon_get_pwm0_max, | |
657 | nouveau_hwmon_set_pwm0_max, 0); | |
658 | ||
34e9d85a MP |
659 | static struct attribute *hwmon_attributes[] = { |
660 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
661 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
662 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
663 | &sensor_dev_attr_name.dev_attr.attr, | |
664 | &sensor_dev_attr_update_rate.dev_attr.attr, | |
665 | NULL | |
666 | }; | |
11b7d895 MP |
667 | static struct attribute *hwmon_fan_rpm_attributes[] = { |
668 | &sensor_dev_attr_fan0_input.dev_attr.attr, | |
669 | NULL | |
670 | }; | |
671 | static struct attribute *hwmon_pwm_fan_attributes[] = { | |
672 | &sensor_dev_attr_pwm0.dev_attr.attr, | |
673 | &sensor_dev_attr_pwm0_min.dev_attr.attr, | |
674 | &sensor_dev_attr_pwm0_max.dev_attr.attr, | |
675 | NULL | |
676 | }; | |
34e9d85a MP |
677 | |
678 | static const struct attribute_group hwmon_attrgroup = { | |
679 | .attrs = hwmon_attributes, | |
680 | }; | |
11b7d895 MP |
681 | static const struct attribute_group hwmon_fan_rpm_attrgroup = { |
682 | .attrs = hwmon_fan_rpm_attributes, | |
683 | }; | |
684 | static const struct attribute_group hwmon_pwm_fan_attrgroup = { | |
685 | .attrs = hwmon_pwm_fan_attributes, | |
686 | }; | |
b54262f3 | 687 | #endif |
34e9d85a MP |
688 | |
689 | static int | |
690 | nouveau_hwmon_init(struct drm_device *dev) | |
691 | { | |
692 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
8155cac4 | 693 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
095f979a | 694 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 695 | struct device *hwmon_dev; |
11b7d895 | 696 | int ret = 0; |
34e9d85a | 697 | |
8155cac4 FJ |
698 | if (!pm->temp_get) |
699 | return -ENODEV; | |
34e9d85a MP |
700 | |
701 | hwmon_dev = hwmon_device_register(&dev->pdev->dev); | |
702 | if (IS_ERR(hwmon_dev)) { | |
703 | ret = PTR_ERR(hwmon_dev); | |
704 | NV_ERROR(dev, | |
705 | "Unable to register hwmon device: %d\n", ret); | |
706 | return ret; | |
707 | } | |
708 | dev_set_drvdata(hwmon_dev, dev); | |
11b7d895 MP |
709 | |
710 | /* default sysfs entries */ | |
07cfe0e7 | 711 | ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
34e9d85a | 712 | if (ret) { |
11b7d895 MP |
713 | if (ret) |
714 | goto error; | |
715 | } | |
716 | ||
717 | /* if the card has a pwm fan */ | |
718 | /*XXX: incorrect, need better detection for this, some boards have | |
719 | * the gpio entries for pwm fan control even when there's no | |
720 | * actual fan connected to it... therm table? */ | |
a175094c | 721 | if (nouveau_pwmfan_get(dev) >= 0) { |
11b7d895 MP |
722 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
723 | &hwmon_pwm_fan_attrgroup); | |
724 | if (ret) | |
725 | goto error; | |
726 | } | |
727 | ||
728 | /* if the card can read the fan rpm */ | |
a0b25635 | 729 | if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) { |
11b7d895 MP |
730 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
731 | &hwmon_fan_rpm_attrgroup); | |
732 | if (ret) | |
733 | goto error; | |
34e9d85a MP |
734 | } |
735 | ||
8155cac4 | 736 | pm->hwmon = hwmon_dev; |
11b7d895 | 737 | |
34e9d85a | 738 | return 0; |
11b7d895 MP |
739 | |
740 | error: | |
741 | NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret); | |
742 | hwmon_device_unregister(hwmon_dev); | |
743 | pm->hwmon = NULL; | |
744 | return ret; | |
745 | #else | |
746 | pm->hwmon = NULL; | |
747 | return 0; | |
748 | #endif | |
34e9d85a MP |
749 | } |
750 | ||
751 | static void | |
752 | nouveau_hwmon_fini(struct drm_device *dev) | |
753 | { | |
658e86ee | 754 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 755 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
8155cac4 | 756 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
34e9d85a | 757 | |
8155cac4 | 758 | if (pm->hwmon) { |
8c06a3e0 | 759 | sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
ddb20055 MP |
760 | sysfs_remove_group(&dev->pdev->dev.kobj, |
761 | &hwmon_pwm_fan_attrgroup); | |
762 | sysfs_remove_group(&dev->pdev->dev.kobj, | |
763 | &hwmon_fan_rpm_attrgroup); | |
11b7d895 | 764 | |
8155cac4 | 765 | hwmon_device_unregister(pm->hwmon); |
34e9d85a | 766 | } |
b54262f3 | 767 | #endif |
34e9d85a MP |
768 | } |
769 | ||
1f962797 | 770 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
771 | static int |
772 | nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data) | |
773 | { | |
774 | struct drm_nouveau_private *dev_priv = | |
775 | container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb); | |
776 | struct drm_device *dev = dev_priv->dev; | |
777 | struct acpi_bus_event *entry = (struct acpi_bus_event *)data; | |
778 | ||
779 | if (strcmp(entry->device_class, "ac_adapter") == 0) { | |
780 | bool ac = power_supply_is_system_supplied(); | |
781 | ||
782 | NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC"); | |
783 | } | |
784 | ||
785 | return NOTIFY_OK; | |
786 | } | |
787 | #endif | |
788 | ||
34e9d85a MP |
789 | int |
790 | nouveau_pm_init(struct drm_device *dev) | |
791 | { | |
792 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
793 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
794 | char info[256]; | |
795 | int ret, i; | |
796 | ||
68a64cad | 797 | /* parse aux tables from vbios */ |
34e9d85a | 798 | nouveau_volt_init(dev); |
34e9d85a MP |
799 | nouveau_temp_init(dev); |
800 | ||
68a64cad BS |
801 | /* determine current ("boot") performance level */ |
802 | ret = nouveau_pm_perflvl_get(dev, &pm->boot); | |
803 | if (ret) { | |
804 | NV_ERROR(dev, "failed to determine boot perflvl\n"); | |
805 | return ret; | |
806 | } | |
807 | ||
808 | strncpy(pm->boot.name, "boot", 4); | |
68a64cad BS |
809 | pm->cur = &pm->boot; |
810 | ||
811 | /* add performance levels from vbios */ | |
812 | nouveau_perf_init(dev); | |
813 | ||
814 | /* display available performance levels */ | |
34e9d85a MP |
815 | NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl); |
816 | for (i = 0; i < pm->nr_perflvl; i++) { | |
817 | nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info)); | |
93dccbed | 818 | NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info); |
34e9d85a MP |
819 | } |
820 | ||
68a64cad BS |
821 | nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info)); |
822 | NV_INFO(dev, "c:%s", info); | |
34e9d85a MP |
823 | |
824 | /* switch performance levels now if requested */ | |
825 | if (nouveau_perflvl != NULL) { | |
826 | ret = nouveau_pm_profile_set(dev, nouveau_perflvl); | |
827 | if (ret) { | |
828 | NV_ERROR(dev, "error setting perflvl \"%s\": %d\n", | |
829 | nouveau_perflvl, ret); | |
830 | } | |
831 | } | |
832 | ||
bc6389e4 MP |
833 | /* determine the current fan speed */ |
834 | pm->fan.percent = nouveau_pwmfan_get(dev); | |
835 | ||
34e9d85a MP |
836 | nouveau_sysfs_init(dev); |
837 | nouveau_hwmon_init(dev); | |
1f962797 | 838 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
839 | pm->acpi_nb.notifier_call = nouveau_pm_acpi_event; |
840 | register_acpi_notifier(&pm->acpi_nb); | |
841 | #endif | |
34e9d85a MP |
842 | |
843 | return 0; | |
844 | } | |
845 | ||
846 | void | |
847 | nouveau_pm_fini(struct drm_device *dev) | |
848 | { | |
849 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
850 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
851 | ||
852 | if (pm->cur != &pm->boot) | |
853 | nouveau_pm_perflvl_set(dev, &pm->boot); | |
330c5988 | 854 | |
7760fcb0 | 855 | nouveau_temp_fini(dev); |
330c5988 BS |
856 | nouveau_perf_fini(dev); |
857 | nouveau_volt_fini(dev); | |
34e9d85a | 858 | |
1f962797 | 859 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
860 | unregister_acpi_notifier(&pm->acpi_nb); |
861 | #endif | |
34e9d85a MP |
862 | nouveau_hwmon_fini(dev); |
863 | nouveau_sysfs_fini(dev); | |
330c5988 BS |
864 | } |
865 | ||
64f1c11a BS |
866 | void |
867 | nouveau_pm_resume(struct drm_device *dev) | |
868 | { | |
869 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
870 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
871 | struct nouveau_pm_level *perflvl; | |
872 | ||
317495b2 | 873 | if (!pm->cur || pm->cur == &pm->boot) |
64f1c11a BS |
874 | return; |
875 | ||
876 | perflvl = pm->cur; | |
877 | pm->cur = &pm->boot; | |
878 | nouveau_pm_perflvl_set(dev, perflvl); | |
bc6389e4 | 879 | nouveau_pwmfan_set(dev, pm->fan.percent); |
64f1c11a | 880 | } |