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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); | |
a175094c BS |
53 | if (ret == 0) { |
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) { | |
a175094c BS |
80 | divs = pm->pwm_divisor; |
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 | ||
a0b25635 | 92 | return pm->pwm_set(dev, gpio.line, divs, duty); |
a175094c BS |
93 | } |
94 | ||
95 | return -ENODEV; | |
96 | } | |
97 | ||
64f1c11a | 98 | static int |
0b627a0b BS |
99 | nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl, |
100 | struct nouveau_pm_level *a, struct nouveau_pm_level *b) | |
64f1c11a BS |
101 | { |
102 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
103 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
104 | int ret; | |
105 | ||
11b7d895 MP |
106 | /*XXX: not on all boards, we should control based on temperature |
107 | * on recent boards.. or maybe on some other factor we don't | |
108 | * know about? | |
109 | */ | |
0b627a0b | 110 | if (a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) { |
a175094c | 111 | ret = nouveau_pwmfan_set(dev, perflvl->fanspeed); |
0b627a0b BS |
112 | if (ret && ret != -ENODEV) { |
113 | NV_ERROR(dev, "fanspeed set failed: %d\n", ret); | |
114 | return ret; | |
115 | } | |
771e1035 BS |
116 | } |
117 | ||
0b627a0b | 118 | if (pm->voltage.supported && pm->voltage_set) { |
d2edab4a | 119 | if (perflvl->volt_min && b->volt_min > a->volt_min) { |
0b627a0b BS |
120 | ret = pm->voltage_set(dev, perflvl->volt_min); |
121 | if (ret) { | |
122 | NV_ERROR(dev, "voltage set failed: %d\n", ret); | |
123 | return ret; | |
124 | } | |
64f1c11a BS |
125 | } |
126 | } | |
127 | ||
0b627a0b BS |
128 | return 0; |
129 | } | |
130 | ||
131 | static int | |
132 | nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl) | |
133 | { | |
134 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
135 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
136 | void *state; | |
137 | int ret; | |
138 | ||
139 | if (perflvl == pm->cur) | |
140 | return 0; | |
141 | ||
142 | ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl); | |
143 | if (ret) | |
144 | return ret; | |
145 | ||
ff2b6c6e BS |
146 | state = pm->clocks_pre(dev, perflvl); |
147 | if (IS_ERR(state)) | |
148 | return PTR_ERR(state); | |
149 | pm->clocks_set(dev, state); | |
64f1c11a | 150 | |
0b627a0b BS |
151 | ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur); |
152 | if (ret) | |
153 | return ret; | |
154 | ||
64f1c11a BS |
155 | pm->cur = perflvl; |
156 | return 0; | |
157 | } | |
158 | ||
6f876986 BS |
159 | static int |
160 | nouveau_pm_profile_set(struct drm_device *dev, const char *profile) | |
161 | { | |
162 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
163 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
164 | struct nouveau_pm_level *perflvl = NULL; | |
6f876986 BS |
165 | |
166 | /* safety precaution, for now */ | |
167 | if (nouveau_perflvl_wr != 7777) | |
168 | return -EPERM; | |
169 | ||
6f876986 BS |
170 | if (!strncmp(profile, "boot", 4)) |
171 | perflvl = &pm->boot; | |
172 | else { | |
173 | int pl = simple_strtol(profile, NULL, 10); | |
174 | int i; | |
175 | ||
176 | for (i = 0; i < pm->nr_perflvl; i++) { | |
177 | if (pm->perflvl[i].id == pl) { | |
178 | perflvl = &pm->perflvl[i]; | |
179 | break; | |
180 | } | |
181 | } | |
182 | ||
183 | if (!perflvl) | |
184 | return -EINVAL; | |
185 | } | |
186 | ||
6f876986 | 187 | NV_INFO(dev, "setting performance level: %s\n", profile); |
64f1c11a | 188 | return nouveau_pm_perflvl_set(dev, perflvl); |
6f876986 BS |
189 | } |
190 | ||
330c5988 BS |
191 | static int |
192 | nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl) | |
193 | { | |
194 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
195 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
196 | int ret; | |
197 | ||
330c5988 BS |
198 | memset(perflvl, 0, sizeof(*perflvl)); |
199 | ||
ff2b6c6e BS |
200 | ret = pm->clocks_get(dev, perflvl); |
201 | if (ret) | |
202 | return ret; | |
330c5988 BS |
203 | |
204 | if (pm->voltage.supported && pm->voltage_get) { | |
205 | ret = pm->voltage_get(dev); | |
3b5565dd BS |
206 | if (ret > 0) { |
207 | perflvl->volt_min = ret; | |
208 | perflvl->volt_max = ret; | |
209 | } | |
330c5988 BS |
210 | } |
211 | ||
a175094c BS |
212 | ret = nouveau_pwmfan_get(dev); |
213 | if (ret > 0) | |
214 | perflvl->fanspeed = ret; | |
771e1035 | 215 | |
330c5988 BS |
216 | return 0; |
217 | } | |
218 | ||
219 | static void | |
220 | nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len) | |
221 | { | |
93dccbed | 222 | char c[16], s[16], v[32], f[16], t[16], m[16]; |
0fbb114a FJ |
223 | |
224 | c[0] = '\0'; | |
225 | if (perflvl->core) | |
226 | snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000); | |
330c5988 BS |
227 | |
228 | s[0] = '\0'; | |
229 | if (perflvl->shader) | |
230 | snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000); | |
231 | ||
93dccbed BS |
232 | m[0] = '\0'; |
233 | if (perflvl->memory) | |
234 | snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000); | |
235 | ||
330c5988 | 236 | v[0] = '\0'; |
3b5565dd BS |
237 | if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) { |
238 | snprintf(v, sizeof(v), " voltage %dmV-%dmV", | |
239 | perflvl->volt_min / 1000, perflvl->volt_max / 1000); | |
240 | } else | |
241 | if (perflvl->volt_min) { | |
242 | snprintf(v, sizeof(v), " voltage %dmV", | |
243 | perflvl->volt_min / 1000); | |
244 | } | |
330c5988 BS |
245 | |
246 | f[0] = '\0'; | |
247 | if (perflvl->fanspeed) | |
248 | snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed); | |
249 | ||
e614b2e7 MP |
250 | t[0] = '\0'; |
251 | if (perflvl->timing) | |
252 | snprintf(t, sizeof(t), " timing %d", perflvl->timing->id); | |
253 | ||
93dccbed | 254 | snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f); |
330c5988 BS |
255 | } |
256 | ||
257 | static ssize_t | |
258 | nouveau_pm_get_perflvl_info(struct device *d, | |
259 | struct device_attribute *a, char *buf) | |
260 | { | |
261 | struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a; | |
262 | char *ptr = buf; | |
263 | int len = PAGE_SIZE; | |
264 | ||
93dccbed | 265 | snprintf(ptr, len, "%d:", perflvl->id); |
330c5988 BS |
266 | ptr += strlen(buf); |
267 | len -= strlen(buf); | |
268 | ||
269 | nouveau_pm_perflvl_info(perflvl, ptr, len); | |
270 | return strlen(buf); | |
271 | } | |
272 | ||
273 | static ssize_t | |
274 | nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf) | |
275 | { | |
34e9d85a | 276 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
330c5988 BS |
277 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
278 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
279 | struct nouveau_pm_level cur; | |
280 | int len = PAGE_SIZE, ret; | |
281 | char *ptr = buf; | |
282 | ||
283 | if (!pm->cur) | |
284 | snprintf(ptr, len, "setting: boot\n"); | |
285 | else if (pm->cur == &pm->boot) | |
93dccbed | 286 | snprintf(ptr, len, "setting: boot\nc:"); |
330c5988 | 287 | else |
93dccbed | 288 | snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id); |
330c5988 BS |
289 | ptr += strlen(buf); |
290 | len -= strlen(buf); | |
291 | ||
292 | ret = nouveau_pm_perflvl_get(dev, &cur); | |
293 | if (ret == 0) | |
294 | nouveau_pm_perflvl_info(&cur, ptr, len); | |
295 | return strlen(buf); | |
296 | } | |
297 | ||
298 | static ssize_t | |
299 | nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a, | |
300 | const char *buf, size_t count) | |
301 | { | |
34e9d85a | 302 | struct drm_device *dev = pci_get_drvdata(to_pci_dev(d)); |
6f876986 BS |
303 | int ret; |
304 | ||
305 | ret = nouveau_pm_profile_set(dev, buf); | |
306 | if (ret) | |
307 | return ret; | |
308 | return strlen(buf); | |
330c5988 BS |
309 | } |
310 | ||
5c4abd09 FJ |
311 | static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR, |
312 | nouveau_pm_get_perflvl, nouveau_pm_set_perflvl); | |
330c5988 | 313 | |
34e9d85a MP |
314 | static int |
315 | nouveau_sysfs_init(struct drm_device *dev) | |
330c5988 BS |
316 | { |
317 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
318 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
319 | struct device *d = &dev->pdev->dev; | |
330c5988 BS |
320 | int ret, i; |
321 | ||
330c5988 BS |
322 | ret = device_create_file(d, &dev_attr_performance_level); |
323 | if (ret) | |
324 | return ret; | |
325 | ||
326 | for (i = 0; i < pm->nr_perflvl; i++) { | |
327 | struct nouveau_pm_level *perflvl = &pm->perflvl[i]; | |
328 | ||
329 | perflvl->dev_attr.attr.name = perflvl->name; | |
330 | perflvl->dev_attr.attr.mode = S_IRUGO; | |
331 | perflvl->dev_attr.show = nouveau_pm_get_perflvl_info; | |
332 | perflvl->dev_attr.store = NULL; | |
333 | sysfs_attr_init(&perflvl->dev_attr.attr); | |
334 | ||
335 | ret = device_create_file(d, &perflvl->dev_attr); | |
336 | if (ret) { | |
337 | NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n", | |
338 | perflvl->id, i); | |
339 | perflvl->dev_attr.attr.name = NULL; | |
340 | nouveau_pm_fini(dev); | |
341 | return ret; | |
342 | } | |
343 | } | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
34e9d85a MP |
348 | static void |
349 | nouveau_sysfs_fini(struct drm_device *dev) | |
330c5988 BS |
350 | { |
351 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
352 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
353 | struct device *d = &dev->pdev->dev; | |
354 | int i; | |
355 | ||
356 | device_remove_file(d, &dev_attr_performance_level); | |
357 | for (i = 0; i < pm->nr_perflvl; i++) { | |
358 | struct nouveau_pm_level *pl = &pm->perflvl[i]; | |
359 | ||
360 | if (!pl->dev_attr.attr.name) | |
361 | break; | |
362 | ||
363 | device_remove_file(d, &pl->dev_attr); | |
364 | } | |
34e9d85a MP |
365 | } |
366 | ||
658e86ee | 367 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a MP |
368 | static ssize_t |
369 | nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf) | |
370 | { | |
371 | struct drm_device *dev = dev_get_drvdata(d); | |
8155cac4 FJ |
372 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
373 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
34e9d85a | 374 | |
8155cac4 | 375 | return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000); |
34e9d85a MP |
376 | } |
377 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp, | |
378 | NULL, 0); | |
379 | ||
380 | static ssize_t | |
381 | nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf) | |
382 | { | |
383 | struct drm_device *dev = dev_get_drvdata(d); | |
384 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
385 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
386 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
387 | ||
388 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000); | |
389 | } | |
390 | static ssize_t | |
391 | nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a, | |
392 | const char *buf, size_t count) | |
393 | { | |
394 | struct drm_device *dev = dev_get_drvdata(d); | |
395 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
396 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
397 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
398 | long value; | |
399 | ||
5c4abd09 | 400 | if (strict_strtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
401 | return count; |
402 | ||
403 | temp->down_clock = value/1000; | |
404 | ||
405 | nouveau_temp_safety_checks(dev); | |
406 | ||
407 | return count; | |
408 | } | |
409 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp, | |
410 | nouveau_hwmon_set_max_temp, | |
411 | 0); | |
412 | ||
413 | static ssize_t | |
414 | nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a, | |
415 | char *buf) | |
416 | { | |
417 | struct drm_device *dev = dev_get_drvdata(d); | |
418 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
419 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
420 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
421 | ||
422 | return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000); | |
423 | } | |
424 | static ssize_t | |
425 | nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a, | |
426 | const char *buf, | |
427 | size_t count) | |
428 | { | |
429 | struct drm_device *dev = dev_get_drvdata(d); | |
430 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
431 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
432 | struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp; | |
433 | long value; | |
434 | ||
5c4abd09 | 435 | if (strict_strtol(buf, 10, &value) == -EINVAL) |
34e9d85a MP |
436 | return count; |
437 | ||
438 | temp->critical = value/1000; | |
439 | ||
440 | nouveau_temp_safety_checks(dev); | |
441 | ||
442 | return count; | |
443 | } | |
444 | static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR, | |
445 | nouveau_hwmon_critical_temp, | |
446 | nouveau_hwmon_set_critical_temp, | |
447 | 0); | |
448 | ||
449 | static ssize_t nouveau_hwmon_show_name(struct device *dev, | |
450 | struct device_attribute *attr, | |
451 | char *buf) | |
452 | { | |
453 | return sprintf(buf, "nouveau\n"); | |
454 | } | |
455 | static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0); | |
456 | ||
457 | static ssize_t nouveau_hwmon_show_update_rate(struct device *dev, | |
458 | struct device_attribute *attr, | |
459 | char *buf) | |
460 | { | |
461 | return sprintf(buf, "1000\n"); | |
462 | } | |
463 | static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO, | |
464 | nouveau_hwmon_show_update_rate, | |
465 | NULL, 0); | |
466 | ||
11b7d895 MP |
467 | static ssize_t |
468 | nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr, | |
469 | char *buf) | |
470 | { | |
471 | struct drm_device *dev = dev_get_drvdata(d); | |
472 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
473 | struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; | |
a0b25635 | 474 | struct gpio_func gpio; |
11b7d895 MP |
475 | u32 cycles, cur, prev; |
476 | u64 start; | |
a0b25635 | 477 | int ret; |
11b7d895 | 478 | |
a0b25635 BS |
479 | ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio); |
480 | if (ret) | |
481 | return ret; | |
11b7d895 MP |
482 | |
483 | /* Monitor the GPIO input 0x3b for 250ms. | |
484 | * When the fan spins, it changes the value of GPIO FAN_SENSE. | |
485 | * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation. | |
486 | */ | |
487 | start = ptimer->read(dev); | |
a0b25635 | 488 | prev = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
489 | cycles = 0; |
490 | do { | |
a0b25635 | 491 | cur = nouveau_gpio_sense(dev, 0, gpio.line); |
11b7d895 MP |
492 | if (prev != cur) { |
493 | cycles++; | |
494 | prev = cur; | |
495 | } | |
496 | ||
497 | usleep_range(500, 1000); /* supports 0 < rpm < 7500 */ | |
498 | } while (ptimer->read(dev) - start < 250000000); | |
499 | ||
500 | /* interpolate to get rpm */ | |
501 | return sprintf(buf, "%i\n", cycles / 4 * 4 * 60); | |
502 | } | |
503 | static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input, | |
504 | NULL, 0); | |
505 | ||
506 | static ssize_t | |
507 | nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf) | |
508 | { | |
509 | struct drm_device *dev = dev_get_drvdata(d); | |
a175094c | 510 | int ret; |
11b7d895 | 511 | |
a175094c | 512 | ret = nouveau_pwmfan_get(dev); |
11b7d895 MP |
513 | if (ret < 0) |
514 | return ret; | |
515 | ||
516 | return sprintf(buf, "%i\n", ret); | |
517 | } | |
518 | ||
519 | static ssize_t | |
520 | nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a, | |
521 | const char *buf, size_t count) | |
522 | { | |
523 | struct drm_device *dev = dev_get_drvdata(d); | |
524 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
525 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
526 | int ret = -ENODEV; | |
527 | long value; | |
528 | ||
529 | if (nouveau_perflvl_wr != 7777) | |
530 | return -EPERM; | |
531 | ||
532 | if (strict_strtol(buf, 10, &value) == -EINVAL) | |
533 | return -EINVAL; | |
534 | ||
535 | if (value < pm->fan.min_duty) | |
536 | value = pm->fan.min_duty; | |
537 | if (value > pm->fan.max_duty) | |
538 | value = pm->fan.max_duty; | |
539 | ||
a175094c | 540 | ret = nouveau_pwmfan_set(dev, value); |
11b7d895 MP |
541 | if (ret) |
542 | return ret; | |
543 | ||
544 | return count; | |
545 | } | |
546 | ||
547 | static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR, | |
548 | nouveau_hwmon_get_pwm0, | |
549 | nouveau_hwmon_set_pwm0, 0); | |
550 | ||
551 | static ssize_t | |
552 | nouveau_hwmon_get_pwm0_min(struct device *d, | |
553 | struct device_attribute *a, 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_pm_engine *pm = &dev_priv->engine.pm; | |
558 | ||
559 | return sprintf(buf, "%i\n", pm->fan.min_duty); | |
560 | } | |
561 | ||
562 | static ssize_t | |
563 | nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a, | |
564 | const char *buf, size_t count) | |
565 | { | |
566 | struct drm_device *dev = dev_get_drvdata(d); | |
567 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
568 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
569 | long value; | |
570 | ||
571 | if (strict_strtol(buf, 10, &value) == -EINVAL) | |
572 | return -EINVAL; | |
573 | ||
574 | if (value < 0) | |
575 | value = 0; | |
576 | ||
577 | if (pm->fan.max_duty - value < 10) | |
578 | value = pm->fan.max_duty - 10; | |
579 | ||
580 | if (value < 10) | |
581 | pm->fan.min_duty = 10; | |
582 | else | |
583 | pm->fan.min_duty = value; | |
584 | ||
585 | return count; | |
586 | } | |
587 | ||
588 | static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR, | |
589 | nouveau_hwmon_get_pwm0_min, | |
590 | nouveau_hwmon_set_pwm0_min, 0); | |
591 | ||
592 | static ssize_t | |
593 | nouveau_hwmon_get_pwm0_max(struct device *d, | |
594 | struct device_attribute *a, char *buf) | |
595 | { | |
596 | struct drm_device *dev = dev_get_drvdata(d); | |
597 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
598 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
599 | ||
600 | return sprintf(buf, "%i\n", pm->fan.max_duty); | |
601 | } | |
602 | ||
603 | static ssize_t | |
604 | nouveau_hwmon_set_pwm0_max(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 | long value; | |
611 | ||
612 | if (strict_strtol(buf, 10, &value) == -EINVAL) | |
613 | return -EINVAL; | |
614 | ||
615 | if (value < 0) | |
616 | value = 0; | |
617 | ||
618 | if (value - pm->fan.min_duty < 10) | |
619 | value = pm->fan.min_duty + 10; | |
620 | ||
621 | if (value > 100) | |
622 | pm->fan.max_duty = 100; | |
623 | else | |
624 | pm->fan.max_duty = value; | |
625 | ||
626 | return count; | |
627 | } | |
628 | ||
629 | static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR, | |
630 | nouveau_hwmon_get_pwm0_max, | |
631 | nouveau_hwmon_set_pwm0_max, 0); | |
632 | ||
34e9d85a MP |
633 | static struct attribute *hwmon_attributes[] = { |
634 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
635 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
636 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
637 | &sensor_dev_attr_name.dev_attr.attr, | |
638 | &sensor_dev_attr_update_rate.dev_attr.attr, | |
639 | NULL | |
640 | }; | |
11b7d895 MP |
641 | static struct attribute *hwmon_fan_rpm_attributes[] = { |
642 | &sensor_dev_attr_fan0_input.dev_attr.attr, | |
643 | NULL | |
644 | }; | |
645 | static struct attribute *hwmon_pwm_fan_attributes[] = { | |
646 | &sensor_dev_attr_pwm0.dev_attr.attr, | |
647 | &sensor_dev_attr_pwm0_min.dev_attr.attr, | |
648 | &sensor_dev_attr_pwm0_max.dev_attr.attr, | |
649 | NULL | |
650 | }; | |
34e9d85a MP |
651 | |
652 | static const struct attribute_group hwmon_attrgroup = { | |
653 | .attrs = hwmon_attributes, | |
654 | }; | |
11b7d895 MP |
655 | static const struct attribute_group hwmon_fan_rpm_attrgroup = { |
656 | .attrs = hwmon_fan_rpm_attributes, | |
657 | }; | |
658 | static const struct attribute_group hwmon_pwm_fan_attrgroup = { | |
659 | .attrs = hwmon_pwm_fan_attributes, | |
660 | }; | |
b54262f3 | 661 | #endif |
34e9d85a MP |
662 | |
663 | static int | |
664 | nouveau_hwmon_init(struct drm_device *dev) | |
665 | { | |
666 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
8155cac4 | 667 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
095f979a | 668 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 669 | struct device *hwmon_dev; |
11b7d895 | 670 | int ret = 0; |
34e9d85a | 671 | |
8155cac4 FJ |
672 | if (!pm->temp_get) |
673 | return -ENODEV; | |
34e9d85a MP |
674 | |
675 | hwmon_dev = hwmon_device_register(&dev->pdev->dev); | |
676 | if (IS_ERR(hwmon_dev)) { | |
677 | ret = PTR_ERR(hwmon_dev); | |
678 | NV_ERROR(dev, | |
679 | "Unable to register hwmon device: %d\n", ret); | |
680 | return ret; | |
681 | } | |
682 | dev_set_drvdata(hwmon_dev, dev); | |
11b7d895 MP |
683 | |
684 | /* default sysfs entries */ | |
07cfe0e7 | 685 | ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
34e9d85a | 686 | if (ret) { |
11b7d895 MP |
687 | if (ret) |
688 | goto error; | |
689 | } | |
690 | ||
691 | /* if the card has a pwm fan */ | |
692 | /*XXX: incorrect, need better detection for this, some boards have | |
693 | * the gpio entries for pwm fan control even when there's no | |
694 | * actual fan connected to it... therm table? */ | |
a175094c | 695 | if (nouveau_pwmfan_get(dev) >= 0) { |
11b7d895 MP |
696 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
697 | &hwmon_pwm_fan_attrgroup); | |
698 | if (ret) | |
699 | goto error; | |
700 | } | |
701 | ||
702 | /* if the card can read the fan rpm */ | |
a0b25635 | 703 | if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) { |
11b7d895 MP |
704 | ret = sysfs_create_group(&dev->pdev->dev.kobj, |
705 | &hwmon_fan_rpm_attrgroup); | |
706 | if (ret) | |
707 | goto error; | |
34e9d85a MP |
708 | } |
709 | ||
8155cac4 | 710 | pm->hwmon = hwmon_dev; |
11b7d895 | 711 | |
34e9d85a | 712 | return 0; |
11b7d895 MP |
713 | |
714 | error: | |
715 | NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret); | |
716 | hwmon_device_unregister(hwmon_dev); | |
717 | pm->hwmon = NULL; | |
718 | return ret; | |
719 | #else | |
720 | pm->hwmon = NULL; | |
721 | return 0; | |
722 | #endif | |
34e9d85a MP |
723 | } |
724 | ||
725 | static void | |
726 | nouveau_hwmon_fini(struct drm_device *dev) | |
727 | { | |
658e86ee | 728 | #if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE)) |
34e9d85a | 729 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
8155cac4 | 730 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; |
34e9d85a | 731 | |
8155cac4 | 732 | if (pm->hwmon) { |
8c06a3e0 | 733 | sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup); |
11b7d895 MP |
734 | sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_pwm_fan_attrgroup); |
735 | sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_fan_rpm_attrgroup); | |
736 | ||
8155cac4 | 737 | hwmon_device_unregister(pm->hwmon); |
34e9d85a | 738 | } |
b54262f3 | 739 | #endif |
34e9d85a MP |
740 | } |
741 | ||
1f962797 | 742 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
743 | static int |
744 | nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data) | |
745 | { | |
746 | struct drm_nouveau_private *dev_priv = | |
747 | container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb); | |
748 | struct drm_device *dev = dev_priv->dev; | |
749 | struct acpi_bus_event *entry = (struct acpi_bus_event *)data; | |
750 | ||
751 | if (strcmp(entry->device_class, "ac_adapter") == 0) { | |
752 | bool ac = power_supply_is_system_supplied(); | |
753 | ||
754 | NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC"); | |
755 | } | |
756 | ||
757 | return NOTIFY_OK; | |
758 | } | |
759 | #endif | |
760 | ||
34e9d85a MP |
761 | int |
762 | nouveau_pm_init(struct drm_device *dev) | |
763 | { | |
764 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
765 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
766 | char info[256]; | |
767 | int ret, i; | |
768 | ||
e614b2e7 | 769 | nouveau_mem_timing_init(dev); |
34e9d85a MP |
770 | nouveau_volt_init(dev); |
771 | nouveau_perf_init(dev); | |
772 | nouveau_temp_init(dev); | |
773 | ||
774 | NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl); | |
775 | for (i = 0; i < pm->nr_perflvl; i++) { | |
776 | nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info)); | |
93dccbed | 777 | NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info); |
34e9d85a MP |
778 | } |
779 | ||
780 | /* determine current ("boot") performance level */ | |
781 | ret = nouveau_pm_perflvl_get(dev, &pm->boot); | |
782 | if (ret == 0) { | |
01e542c6 | 783 | strncpy(pm->boot.name, "boot", 4); |
34e9d85a MP |
784 | pm->cur = &pm->boot; |
785 | ||
786 | nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info)); | |
93dccbed | 787 | NV_INFO(dev, "c:%s", info); |
34e9d85a MP |
788 | } |
789 | ||
790 | /* switch performance levels now if requested */ | |
791 | if (nouveau_perflvl != NULL) { | |
792 | ret = nouveau_pm_profile_set(dev, nouveau_perflvl); | |
793 | if (ret) { | |
794 | NV_ERROR(dev, "error setting perflvl \"%s\": %d\n", | |
795 | nouveau_perflvl, ret); | |
796 | } | |
797 | } | |
798 | ||
799 | nouveau_sysfs_init(dev); | |
800 | nouveau_hwmon_init(dev); | |
1f962797 | 801 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
802 | pm->acpi_nb.notifier_call = nouveau_pm_acpi_event; |
803 | register_acpi_notifier(&pm->acpi_nb); | |
804 | #endif | |
34e9d85a MP |
805 | |
806 | return 0; | |
807 | } | |
808 | ||
809 | void | |
810 | nouveau_pm_fini(struct drm_device *dev) | |
811 | { | |
812 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
813 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
814 | ||
815 | if (pm->cur != &pm->boot) | |
816 | nouveau_pm_perflvl_set(dev, &pm->boot); | |
330c5988 | 817 | |
7760fcb0 | 818 | nouveau_temp_fini(dev); |
330c5988 BS |
819 | nouveau_perf_fini(dev); |
820 | nouveau_volt_fini(dev); | |
e614b2e7 | 821 | nouveau_mem_timing_fini(dev); |
34e9d85a | 822 | |
1f962797 | 823 | #if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY) |
6032649d BS |
824 | unregister_acpi_notifier(&pm->acpi_nb); |
825 | #endif | |
34e9d85a MP |
826 | nouveau_hwmon_fini(dev); |
827 | nouveau_sysfs_fini(dev); | |
330c5988 BS |
828 | } |
829 | ||
64f1c11a BS |
830 | void |
831 | nouveau_pm_resume(struct drm_device *dev) | |
832 | { | |
833 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
834 | struct nouveau_pm_engine *pm = &dev_priv->engine.pm; | |
835 | struct nouveau_pm_level *perflvl; | |
836 | ||
317495b2 | 837 | if (!pm->cur || pm->cur == &pm->boot) |
64f1c11a BS |
838 | return; |
839 | ||
840 | perflvl = pm->cur; | |
841 | pm->cur = &pm->boot; | |
842 | nouveau_pm_perflvl_set(dev, perflvl); | |
843 | } |