projects / deliverable / linux.git / blob
? search:


248c5a9fb0b6faa19467f130428c0c9e7cb3223f
[deliverable/linux.git] / drivers / gpu / drm / radeon / radeon_pm.c
1 /*
2 * Permission is hereby granted, free of charge, to any person obtaining a
3 * copy of this software and associated documentation files (the "Software"),
4 * to deal in the Software without restriction, including without limitation
5 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
6 * and/or sell copies of the Software, and to permit persons to whom the
7 * Software is furnished to do so, subject to the following conditions:
8 *
9 * The above copyright notice and this permission notice shall be included in
10 * all copies or substantial portions of the Software.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
15 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
16 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
17 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
18 * OTHER DEALINGS IN THE SOFTWARE.
19 *
20 * Authors: Rafał Miłecki <zajec5@gmail.com>
21 * Alex Deucher <alexdeucher@gmail.com>
22 */
23 #include <drm/drmP.h>
24 #include "radeon.h"
25 #include "avivod.h"
26 #include "atom.h"
27 #include "r600_dpm.h"
28 #include <linux/power_supply.h>
29 #include <linux/hwmon.h>
30 #include <linux/hwmon-sysfs.h>
31
32 #define RADEON_IDLE_LOOP_MS 100
33 #define RADEON_RECLOCK_DELAY_MS 200
34 #define RADEON_WAIT_VBLANK_TIMEOUT 200
35
36 static const char *radeon_pm_state_type_name[5] = {
37 "",
38 "Powersave",
39 "Battery",
40 "Balanced",
41 "Performance",
42 };
43
44 static void radeon_dynpm_idle_work_handler(struct work_struct *work);
45 static int radeon_debugfs_pm_init(struct radeon_device *rdev);
46 static bool radeon_pm_in_vbl(struct radeon_device *rdev);
47 static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish);
48 static void radeon_pm_update_profile(struct radeon_device *rdev);
49 static void radeon_pm_set_clocks(struct radeon_device *rdev);
50
51 int radeon_pm_get_type_index(struct radeon_device *rdev,
52 enum radeon_pm_state_type ps_type,
53 int instance)
54 {
55 int i;
56 int found_instance = -1;
57
58 for (i = 0; i < rdev->pm.num_power_states; i++) {
59 if (rdev->pm.power_state[i].type == ps_type) {
60 found_instance++;
61 if (found_instance == instance)
62 return i;
63 }
64 }
65 /* return default if no match */
66 return rdev->pm.default_power_state_index;
67 }
68
69 void radeon_pm_acpi_event_handler(struct radeon_device *rdev)
70 {
71 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
72 mutex_lock(&rdev->pm.mutex);
73 if (power_supply_is_system_supplied() > 0)
74 rdev->pm.dpm.ac_power = true;
75 else
76 rdev->pm.dpm.ac_power = false;
77 if (rdev->family == CHIP_ARUBA) {
78 if (rdev->asic->dpm.enable_bapm)
79 radeon_dpm_enable_bapm(rdev, rdev->pm.dpm.ac_power);
80 }
81 mutex_unlock(&rdev->pm.mutex);
82 } else if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
83 if (rdev->pm.profile == PM_PROFILE_AUTO) {
84 mutex_lock(&rdev->pm.mutex);
85 radeon_pm_update_profile(rdev);
86 radeon_pm_set_clocks(rdev);
87 mutex_unlock(&rdev->pm.mutex);
88 }
89 }
90 }
91
92 static void radeon_pm_update_profile(struct radeon_device *rdev)
93 {
94 switch (rdev->pm.profile) {
95 case PM_PROFILE_DEFAULT:
96 rdev->pm.profile_index = PM_PROFILE_DEFAULT_IDX;
97 break;
98 case PM_PROFILE_AUTO:
99 if (power_supply_is_system_supplied() > 0) {
100 if (rdev->pm.active_crtc_count > 1)
101 rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX;
102 else
103 rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX;
104 } else {
105 if (rdev->pm.active_crtc_count > 1)
106 rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX;
107 else
108 rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX;
109 }
110 break;
111 case PM_PROFILE_LOW:
112 if (rdev->pm.active_crtc_count > 1)
113 rdev->pm.profile_index = PM_PROFILE_LOW_MH_IDX;
114 else
115 rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX;
116 break;
117 case PM_PROFILE_MID:
118 if (rdev->pm.active_crtc_count > 1)
119 rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX;
120 else
121 rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX;
122 break;
123 case PM_PROFILE_HIGH:
124 if (rdev->pm.active_crtc_count > 1)
125 rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX;
126 else
127 rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX;
128 break;
129 }
130
131 if (rdev->pm.active_crtc_count == 0) {
132 rdev->pm.requested_power_state_index =
133 rdev->pm.profiles[rdev->pm.profile_index].dpms_off_ps_idx;
134 rdev->pm.requested_clock_mode_index =
135 rdev->pm.profiles[rdev->pm.profile_index].dpms_off_cm_idx;
136 } else {
137 rdev->pm.requested_power_state_index =
138 rdev->pm.profiles[rdev->pm.profile_index].dpms_on_ps_idx;
139 rdev->pm.requested_clock_mode_index =
140 rdev->pm.profiles[rdev->pm.profile_index].dpms_on_cm_idx;
141 }
142 }
143
144 static void radeon_unmap_vram_bos(struct radeon_device *rdev)
145 {
146 struct radeon_bo *bo, *n;
147
148 if (list_empty(&rdev->gem.objects))
149 return;
150
151 list_for_each_entry_safe(bo, n, &rdev->gem.objects, list) {
152 if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
153 ttm_bo_unmap_virtual(&bo->tbo);
154 }
155 }
156
157 static void radeon_sync_with_vblank(struct radeon_device *rdev)
158 {
159 if (rdev->pm.active_crtcs) {
160 rdev->pm.vblank_sync = false;
161 wait_event_timeout(
162 rdev->irq.vblank_queue, rdev->pm.vblank_sync,
163 msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT));
164 }
165 }
166
167 static void radeon_set_power_state(struct radeon_device *rdev)
168 {
169 u32 sclk, mclk;
170 bool misc_after = false;
171
172 if ((rdev->pm.requested_clock_mode_index == rdev->pm.current_clock_mode_index) &&
173 (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index))
174 return;
175
176 if (radeon_gui_idle(rdev)) {
177 sclk = rdev->pm.power_state[rdev->pm.requested_power_state_index].
178 clock_info[rdev->pm.requested_clock_mode_index].sclk;
179 if (sclk > rdev->pm.default_sclk)
180 sclk = rdev->pm.default_sclk;
181
182 /* starting with BTC, there is one state that is used for both
183 * MH and SH. Difference is that we always use the high clock index for
184 * mclk and vddci.
185 */
186 if ((rdev->pm.pm_method == PM_METHOD_PROFILE) &&
187 (rdev->family >= CHIP_BARTS) &&
188 rdev->pm.active_crtc_count &&
189 ((rdev->pm.profile_index == PM_PROFILE_MID_MH_IDX) ||
190 (rdev->pm.profile_index == PM_PROFILE_LOW_MH_IDX)))
191 mclk = rdev->pm.power_state[rdev->pm.requested_power_state_index].
192 clock_info[rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx].mclk;
193 else
194 mclk = rdev->pm.power_state[rdev->pm.requested_power_state_index].
195 clock_info[rdev->pm.requested_clock_mode_index].mclk;
196
197 if (mclk > rdev->pm.default_mclk)
198 mclk = rdev->pm.default_mclk;
199
200 /* upvolt before raising clocks, downvolt after lowering clocks */
201 if (sclk < rdev->pm.current_sclk)
202 misc_after = true;
203
204 radeon_sync_with_vblank(rdev);
205
206 if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
207 if (!radeon_pm_in_vbl(rdev))
208 return;
209 }
210
211 radeon_pm_prepare(rdev);
212
213 if (!misc_after)
214 /* voltage, pcie lanes, etc.*/
215 radeon_pm_misc(rdev);
216
217 /* set engine clock */
218 if (sclk != rdev->pm.current_sclk) {
219 radeon_pm_debug_check_in_vbl(rdev, false);
220 radeon_set_engine_clock(rdev, sclk);
221 radeon_pm_debug_check_in_vbl(rdev, true);
222 rdev->pm.current_sclk = sclk;
223 DRM_DEBUG_DRIVER("Setting: e: %d\n", sclk);
224 }
225
226 /* set memory clock */
227 if (rdev->asic->pm.set_memory_clock && (mclk != rdev->pm.current_mclk)) {
228 radeon_pm_debug_check_in_vbl(rdev, false);
229 radeon_set_memory_clock(rdev, mclk);
230 radeon_pm_debug_check_in_vbl(rdev, true);
231 rdev->pm.current_mclk = mclk;
232 DRM_DEBUG_DRIVER("Setting: m: %d\n", mclk);
233 }
234
235 if (misc_after)
236 /* voltage, pcie lanes, etc.*/
237 radeon_pm_misc(rdev);
238
239 radeon_pm_finish(rdev);
240
241 rdev->pm.current_power_state_index = rdev->pm.requested_power_state_index;
242 rdev->pm.current_clock_mode_index = rdev->pm.requested_clock_mode_index;
243 } else
244 DRM_DEBUG_DRIVER("pm: GUI not idle!!!\n");
245 }
246
247 static void radeon_pm_set_clocks(struct radeon_device *rdev)
248 {
249 int i, r;
250
251 /* no need to take locks, etc. if nothing's going to change */
252 if ((rdev->pm.requested_clock_mode_index == rdev->pm.current_clock_mode_index) &&
253 (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index))
254 return;
255
256 down_write(&rdev->pm.mclk_lock);
257 mutex_lock(&rdev->ring_lock);
258
259 /* wait for the rings to drain */
260 for (i = 0; i < RADEON_NUM_RINGS; i++) {
261 struct radeon_ring *ring = &rdev->ring[i];
262 if (!ring->ready) {
263 continue;
264 }
265 r = radeon_fence_wait_empty(rdev, i);
266 if (r) {
267 /* needs a GPU reset dont reset here */
268 mutex_unlock(&rdev->ring_lock);
269 up_write(&rdev->pm.mclk_lock);
270 return;
271 }
272 }
273
274 radeon_unmap_vram_bos(rdev);
275
276 if (rdev->irq.installed) {
277 for (i = 0; i < rdev->num_crtc; i++) {
278 if (rdev->pm.active_crtcs & (1 << i)) {
279 /* This can fail if a modeset is in progress */
280 if (drm_vblank_get(rdev->ddev, i) == 0)
281 rdev->pm.req_vblank |= (1 << i);
282 else
283 DRM_DEBUG_DRIVER("crtc %d no vblank, can glitch\n",
284 i);
285 }
286 }
287 }
288
289 radeon_set_power_state(rdev);
290
291 if (rdev->irq.installed) {
292 for (i = 0; i < rdev->num_crtc; i++) {
293 if (rdev->pm.req_vblank & (1 << i)) {
294 rdev->pm.req_vblank &= ~(1 << i);
295 drm_vblank_put(rdev->ddev, i);
296 }
297 }
298 }
299
300 /* update display watermarks based on new power state */
301 radeon_update_bandwidth_info(rdev);
302 if (rdev->pm.active_crtc_count)
303 radeon_bandwidth_update(rdev);
304
305 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
306
307 mutex_unlock(&rdev->ring_lock);
308 up_write(&rdev->pm.mclk_lock);
309 }
310
311 static void radeon_pm_print_states(struct radeon_device *rdev)
312 {
313 int i, j;
314 struct radeon_power_state *power_state;
315 struct radeon_pm_clock_info *clock_info;
316
317 DRM_DEBUG_DRIVER("%d Power State(s)\n", rdev->pm.num_power_states);
318 for (i = 0; i < rdev->pm.num_power_states; i++) {
319 power_state = &rdev->pm.power_state[i];
320 DRM_DEBUG_DRIVER("State %d: %s\n", i,
321 radeon_pm_state_type_name[power_state->type]);
322 if (i == rdev->pm.default_power_state_index)
323 DRM_DEBUG_DRIVER("\tDefault");
324 if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP))
325 DRM_DEBUG_DRIVER("\t%d PCIE Lanes\n", power_state->pcie_lanes);
326 if (power_state->flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
327 DRM_DEBUG_DRIVER("\tSingle display only\n");
328 DRM_DEBUG_DRIVER("\t%d Clock Mode(s)\n", power_state->num_clock_modes);
329 for (j = 0; j < power_state->num_clock_modes; j++) {
330 clock_info = &(power_state->clock_info[j]);
331 if (rdev->flags & RADEON_IS_IGP)
332 DRM_DEBUG_DRIVER("\t\t%d e: %d\n",
333 j,
334 clock_info->sclk * 10);
335 else
336 DRM_DEBUG_DRIVER("\t\t%d e: %d\tm: %d\tv: %d\n",
337 j,
338 clock_info->sclk * 10,
339 clock_info->mclk * 10,
340 clock_info->voltage.voltage);
341 }
342 }
343 }
344
345 static ssize_t radeon_get_pm_profile(struct device *dev,
346 struct device_attribute *attr,
347 char *buf)
348 {
349 struct drm_device *ddev = dev_get_drvdata(dev);
350 struct radeon_device *rdev = ddev->dev_private;
351 int cp = rdev->pm.profile;
352
353 return snprintf(buf, PAGE_SIZE, "%s\n",
354 (cp == PM_PROFILE_AUTO) ? "auto" :
355 (cp == PM_PROFILE_LOW) ? "low" :
356 (cp == PM_PROFILE_MID) ? "mid" :
357 (cp == PM_PROFILE_HIGH) ? "high" : "default");
358 }
359
360 static ssize_t radeon_set_pm_profile(struct device *dev,
361 struct device_attribute *attr,
362 const char *buf,
363 size_t count)
364 {
365 struct drm_device *ddev = dev_get_drvdata(dev);
366 struct radeon_device *rdev = ddev->dev_private;
367
368 /* Can't set profile when the card is off */
369 if ((rdev->flags & RADEON_IS_PX) &&
370 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
371 return -EINVAL;
372
373 mutex_lock(&rdev->pm.mutex);
374 if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
375 if (strncmp("default", buf, strlen("default")) == 0)
376 rdev->pm.profile = PM_PROFILE_DEFAULT;
377 else if (strncmp("auto", buf, strlen("auto")) == 0)
378 rdev->pm.profile = PM_PROFILE_AUTO;
379 else if (strncmp("low", buf, strlen("low")) == 0)
380 rdev->pm.profile = PM_PROFILE_LOW;
381 else if (strncmp("mid", buf, strlen("mid")) == 0)
382 rdev->pm.profile = PM_PROFILE_MID;
383 else if (strncmp("high", buf, strlen("high")) == 0)
384 rdev->pm.profile = PM_PROFILE_HIGH;
385 else {
386 count = -EINVAL;
387 goto fail;
388 }
389 radeon_pm_update_profile(rdev);
390 radeon_pm_set_clocks(rdev);
391 } else
392 count = -EINVAL;
393
394 fail:
395 mutex_unlock(&rdev->pm.mutex);
396
397 return count;
398 }
399
400 static ssize_t radeon_get_pm_method(struct device *dev,
401 struct device_attribute *attr,
402 char *buf)
403 {
404 struct drm_device *ddev = dev_get_drvdata(dev);
405 struct radeon_device *rdev = ddev->dev_private;
406 int pm = rdev->pm.pm_method;
407
408 return snprintf(buf, PAGE_SIZE, "%s\n",
409 (pm == PM_METHOD_DYNPM) ? "dynpm" :
410 (pm == PM_METHOD_PROFILE) ? "profile" : "dpm");
411 }
412
413 static ssize_t radeon_set_pm_method(struct device *dev,
414 struct device_attribute *attr,
415 const char *buf,
416 size_t count)
417 {
418 struct drm_device *ddev = dev_get_drvdata(dev);
419 struct radeon_device *rdev = ddev->dev_private;
420
421 /* Can't set method when the card is off */
422 if ((rdev->flags & RADEON_IS_PX) &&
423 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) {
424 count = -EINVAL;
425 goto fail;
426 }
427
428 /* we don't support the legacy modes with dpm */
429 if (rdev->pm.pm_method == PM_METHOD_DPM) {
430 count = -EINVAL;
431 goto fail;
432 }
433
434 if (strncmp("dynpm", buf, strlen("dynpm")) == 0) {
435 mutex_lock(&rdev->pm.mutex);
436 rdev->pm.pm_method = PM_METHOD_DYNPM;
437 rdev->pm.dynpm_state = DYNPM_STATE_PAUSED;
438 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
439 mutex_unlock(&rdev->pm.mutex);
440 } else if (strncmp("profile", buf, strlen("profile")) == 0) {
441 mutex_lock(&rdev->pm.mutex);
442 /* disable dynpm */
443 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
444 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
445 rdev->pm.pm_method = PM_METHOD_PROFILE;
446 mutex_unlock(&rdev->pm.mutex);
447 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
448 } else {
449 count = -EINVAL;
450 goto fail;
451 }
452 radeon_pm_compute_clocks(rdev);
453 fail:
454 return count;
455 }
456
457 static ssize_t radeon_get_dpm_state(struct device *dev,
458 struct device_attribute *attr,
459 char *buf)
460 {
461 struct drm_device *ddev = dev_get_drvdata(dev);
462 struct radeon_device *rdev = ddev->dev_private;
463 enum radeon_pm_state_type pm = rdev->pm.dpm.user_state;
464
465 return snprintf(buf, PAGE_SIZE, "%s\n",
466 (pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
467 (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
468 }
469
470 static ssize_t radeon_set_dpm_state(struct device *dev,
471 struct device_attribute *attr,
472 const char *buf,
473 size_t count)
474 {
475 struct drm_device *ddev = dev_get_drvdata(dev);
476 struct radeon_device *rdev = ddev->dev_private;
477
478 mutex_lock(&rdev->pm.mutex);
479 if (strncmp("battery", buf, strlen("battery")) == 0)
480 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BATTERY;
481 else if (strncmp("balanced", buf, strlen("balanced")) == 0)
482 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED;
483 else if (strncmp("performance", buf, strlen("performance")) == 0)
484 rdev->pm.dpm.user_state = POWER_STATE_TYPE_PERFORMANCE;
485 else {
486 mutex_unlock(&rdev->pm.mutex);
487 count = -EINVAL;
488 goto fail;
489 }
490 mutex_unlock(&rdev->pm.mutex);
491
492 /* Can't set dpm state when the card is off */
493 if (!(rdev->flags & RADEON_IS_PX) ||
494 (ddev->switch_power_state == DRM_SWITCH_POWER_ON))
495 radeon_pm_compute_clocks(rdev);
496
497 fail:
498 return count;
499 }
500
501 static ssize_t radeon_get_dpm_forced_performance_level(struct device *dev,
502 struct device_attribute *attr,
503 char *buf)
504 {
505 struct drm_device *ddev = dev_get_drvdata(dev);
506 struct radeon_device *rdev = ddev->dev_private;
507 enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
508
509 if ((rdev->flags & RADEON_IS_PX) &&
510 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
511 return snprintf(buf, PAGE_SIZE, "off\n");
512
513 return snprintf(buf, PAGE_SIZE, "%s\n",
514 (level == RADEON_DPM_FORCED_LEVEL_AUTO) ? "auto" :
515 (level == RADEON_DPM_FORCED_LEVEL_LOW) ? "low" : "high");
516 }
517
518 static ssize_t radeon_set_dpm_forced_performance_level(struct device *dev,
519 struct device_attribute *attr,
520 const char *buf,
521 size_t count)
522 {
523 struct drm_device *ddev = dev_get_drvdata(dev);
524 struct radeon_device *rdev = ddev->dev_private;
525 enum radeon_dpm_forced_level level;
526 int ret = 0;
527
528 /* Can't force performance level when the card is off */
529 if ((rdev->flags & RADEON_IS_PX) &&
530 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
531 return -EINVAL;
532
533 mutex_lock(&rdev->pm.mutex);
534 if (strncmp("low", buf, strlen("low")) == 0) {
535 level = RADEON_DPM_FORCED_LEVEL_LOW;
536 } else if (strncmp("high", buf, strlen("high")) == 0) {
537 level = RADEON_DPM_FORCED_LEVEL_HIGH;
538 } else if (strncmp("auto", buf, strlen("auto")) == 0) {
539 level = RADEON_DPM_FORCED_LEVEL_AUTO;
540 } else {
541 count = -EINVAL;
542 goto fail;
543 }
544 if (rdev->asic->dpm.force_performance_level) {
545 if (rdev->pm.dpm.thermal_active) {
546 count = -EINVAL;
547 goto fail;
548 }
549 ret = radeon_dpm_force_performance_level(rdev, level);
550 if (ret)
551 count = -EINVAL;
552 }
553 fail:
554 mutex_unlock(&rdev->pm.mutex);
555
556 return count;
557 }
558
559 static ssize_t radeon_hwmon_get_pwm1_enable(struct device *dev,
560 struct device_attribute *attr,
561 char *buf)
562 {
563 struct radeon_device *rdev = dev_get_drvdata(dev);
564 u32 pwm_mode = 0;
565
566 if (rdev->asic->dpm.fan_ctrl_get_mode)
567 pwm_mode = rdev->asic->dpm.fan_ctrl_get_mode(rdev);
568
569 /* never 0 (full-speed), fuse or smc-controlled always */
570 return sprintf(buf, "%i\n", pwm_mode == FDO_PWM_MODE_STATIC ? 1 : 2);
571 }
572
573 static ssize_t radeon_hwmon_set_pwm1_enable(struct device *dev,
574 struct device_attribute *attr,
575 const char *buf,
576 size_t count)
577 {
578 struct radeon_device *rdev = dev_get_drvdata(dev);
579 int err;
580 int value;
581
582 if(!rdev->asic->dpm.fan_ctrl_set_mode)
583 return -EINVAL;
584
585 err = kstrtoint(buf, 10, &value);
586 if (err)
587 return err;
588
589 switch (value) {
590 case 1: /* manual, percent-based */
591 rdev->asic->dpm.fan_ctrl_set_mode(rdev, FDO_PWM_MODE_STATIC);
592 break;
593 default: /* disable */
594 rdev->asic->dpm.fan_ctrl_set_mode(rdev, 0);
595 break;
596 }
597
598 return count;
599 }
600
601 static ssize_t radeon_hwmon_get_pwm1_min(struct device *dev,
602 struct device_attribute *attr,
603 char *buf)
604 {
605 return sprintf(buf, "%i\n", 0);
606 }
607
608 static ssize_t radeon_hwmon_get_pwm1_max(struct device *dev,
609 struct device_attribute *attr,
610 char *buf)
611 {
612 return sprintf(buf, "%i\n", 255);
613 }
614
615 static ssize_t radeon_hwmon_set_pwm1(struct device *dev,
616 struct device_attribute *attr,
617 const char *buf, size_t count)
618 {
619 struct radeon_device *rdev = dev_get_drvdata(dev);
620 int err;
621 u32 value;
622
623 err = kstrtou32(buf, 10, &value);
624 if (err)
625 return err;
626
627 value = (value * 100) / 255;
628
629 err = rdev->asic->dpm.set_fan_speed_percent(rdev, value);
630 if (err)
631 return err;
632
633 return count;
634 }
635
636 static ssize_t radeon_hwmon_get_pwm1(struct device *dev,
637 struct device_attribute *attr,
638 char *buf)
639 {
640 struct radeon_device *rdev = dev_get_drvdata(dev);
641 int err;
642 u32 speed;
643
644 err = rdev->asic->dpm.get_fan_speed_percent(rdev, &speed);
645 if (err)
646 return err;
647
648 speed = (speed * 255) / 100;
649
650 return sprintf(buf, "%i\n", speed);
651 }
652
653 static DEVICE_ATTR(power_profile, S_IRUGO | S_IWUSR, radeon_get_pm_profile, radeon_set_pm_profile);
654 static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon_set_pm_method);
655 static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, radeon_get_dpm_state, radeon_set_dpm_state);
656 static DEVICE_ATTR(power_dpm_force_performance_level, S_IRUGO | S_IWUSR,
657 radeon_get_dpm_forced_performance_level,
658 radeon_set_dpm_forced_performance_level);
659
660 static ssize_t radeon_hwmon_show_temp(struct device *dev,
661 struct device_attribute *attr,
662 char *buf)
663 {
664 struct radeon_device *rdev = dev_get_drvdata(dev);
665 struct drm_device *ddev = rdev->ddev;
666 int temp;
667
668 /* Can't get temperature when the card is off */
669 if ((rdev->flags & RADEON_IS_PX) &&
670 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
671 return -EINVAL;
672
673 if (rdev->asic->pm.get_temperature)
674 temp = radeon_get_temperature(rdev);
675 else
676 temp = 0;
677
678 return snprintf(buf, PAGE_SIZE, "%d\n", temp);
679 }
680
681 static ssize_t radeon_hwmon_show_temp_thresh(struct device *dev,
682 struct device_attribute *attr,
683 char *buf)
684 {
685 struct radeon_device *rdev = dev_get_drvdata(dev);
686 int hyst = to_sensor_dev_attr(attr)->index;
687 int temp;
688
689 if (hyst)
690 temp = rdev->pm.dpm.thermal.min_temp;
691 else
692 temp = rdev->pm.dpm.thermal.max_temp;
693
694 return snprintf(buf, PAGE_SIZE, "%d\n", temp);
695 }
696
697 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, radeon_hwmon_show_temp, NULL, 0);
698 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 0);
699 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 1);
700 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, radeon_hwmon_get_pwm1, radeon_hwmon_set_pwm1, 0);
701 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, radeon_hwmon_get_pwm1_enable, radeon_hwmon_set_pwm1_enable, 0);
702 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, radeon_hwmon_get_pwm1_min, NULL, 0);
703 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, radeon_hwmon_get_pwm1_max, NULL, 0);
704
705
706 static struct attribute *hwmon_attributes[] = {
707 &sensor_dev_attr_temp1_input.dev_attr.attr,
708 &sensor_dev_attr_temp1_crit.dev_attr.attr,
709 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
710 &sensor_dev_attr_pwm1.dev_attr.attr,
711 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
712 &sensor_dev_attr_pwm1_min.dev_attr.attr,
713 &sensor_dev_attr_pwm1_max.dev_attr.attr,
714 NULL
715 };
716
717 static umode_t hwmon_attributes_visible(struct kobject *kobj,
718 struct attribute *attr, int index)
719 {
720 struct device *dev = kobj_to_dev(kobj);
721 struct radeon_device *rdev = dev_get_drvdata(dev);
722 umode_t effective_mode = attr->mode;
723
724 /* Skip attributes if DPM is not enabled */
725 if (rdev->pm.pm_method != PM_METHOD_DPM &&
726 (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
727 attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
728 attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
729 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
730 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
731 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
732 return 0;
733
734 /* Skip fan attributes if fan is not present */
735 if (rdev->pm.no_fan &&
736 (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
737 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
738 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
739 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
740 return 0;
741
742 /* mask fan attributes if we have no bindings for this asic to expose */
743 if ((!rdev->asic->dpm.get_fan_speed_percent &&
744 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */
745 (!rdev->asic->dpm.fan_ctrl_get_mode &&
746 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */
747 effective_mode &= ~S_IRUGO;
748
749 if ((!rdev->asic->dpm.set_fan_speed_percent &&
750 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */
751 (!rdev->asic->dpm.fan_ctrl_set_mode &&
752 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */
753 effective_mode &= ~S_IWUSR;
754
755 /* hide max/min values if we can't both query and manage the fan */
756 if ((!rdev->asic->dpm.set_fan_speed_percent &&
757 !rdev->asic->dpm.get_fan_speed_percent) &&
758 (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
759 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
760 return 0;
761
762 return effective_mode;
763 }
764
765 static const struct attribute_group hwmon_attrgroup = {
766 .attrs = hwmon_attributes,
767 .is_visible = hwmon_attributes_visible,
768 };
769
770 static const struct attribute_group *hwmon_groups[] = {
771 &hwmon_attrgroup,
772 NULL
773 };
774
775 static int radeon_hwmon_init(struct radeon_device *rdev)
776 {
777 int err = 0;
778
779 switch (rdev->pm.int_thermal_type) {
780 case THERMAL_TYPE_RV6XX:
781 case THERMAL_TYPE_RV770:
782 case THERMAL_TYPE_EVERGREEN:
783 case THERMAL_TYPE_NI:
784 case THERMAL_TYPE_SUMO:
785 case THERMAL_TYPE_SI:
786 case THERMAL_TYPE_CI:
787 case THERMAL_TYPE_KV:
788 if (rdev->asic->pm.get_temperature == NULL)
789 return err;
790 rdev->pm.int_hwmon_dev = hwmon_device_register_with_groups(rdev->dev,
791 "radeon", rdev,
792 hwmon_groups);
793 if (IS_ERR(rdev->pm.int_hwmon_dev)) {
794 err = PTR_ERR(rdev->pm.int_hwmon_dev);
795 dev_err(rdev->dev,
796 "Unable to register hwmon device: %d\n", err);
797 }
798 break;
799 default:
800 break;
801 }
802
803 return err;
804 }
805
806 static void radeon_hwmon_fini(struct radeon_device *rdev)
807 {
808 if (rdev->pm.int_hwmon_dev)
809 hwmon_device_unregister(rdev->pm.int_hwmon_dev);
810 }
811
812 static void radeon_dpm_thermal_work_handler(struct work_struct *work)
813 {
814 struct radeon_device *rdev =
815 container_of(work, struct radeon_device,
816 pm.dpm.thermal.work);
817 /* switch to the thermal state */
818 enum radeon_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL;
819
820 if (!rdev->pm.dpm_enabled)
821 return;
822
823 if (rdev->asic->pm.get_temperature) {
824 int temp = radeon_get_temperature(rdev);
825
826 if (temp < rdev->pm.dpm.thermal.min_temp)
827 /* switch back the user state */
828 dpm_state = rdev->pm.dpm.user_state;
829 } else {
830 if (rdev->pm.dpm.thermal.high_to_low)
831 /* switch back the user state */
832 dpm_state = rdev->pm.dpm.user_state;
833 }
834 mutex_lock(&rdev->pm.mutex);
835 if (dpm_state == POWER_STATE_TYPE_INTERNAL_THERMAL)
836 rdev->pm.dpm.thermal_active = true;
837 else
838 rdev->pm.dpm.thermal_active = false;
839 rdev->pm.dpm.state = dpm_state;
840 mutex_unlock(&rdev->pm.mutex);
841
842 radeon_pm_compute_clocks(rdev);
843 }
844
845 static bool radeon_dpm_single_display(struct radeon_device *rdev)
846 {
847 bool single_display = (rdev->pm.dpm.new_active_crtc_count < 2) ?
848 true : false;
849
850 /* check if the vblank period is too short to adjust the mclk */
851 if (single_display && rdev->asic->dpm.vblank_too_short) {
852 if (radeon_dpm_vblank_too_short(rdev))
853 single_display = false;
854 }
855
856 /* 120hz tends to be problematic even if they are under the
857 * vblank limit.
858 */
859 if (single_display && (r600_dpm_get_vrefresh(rdev) >= 120))
860 single_display = false;
861
862 return single_display;
863 }
864
865 static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev,
866 enum radeon_pm_state_type dpm_state)
867 {
868 int i;
869 struct radeon_ps *ps;
870 u32 ui_class;
871 bool single_display = radeon_dpm_single_display(rdev);
872
873 /* certain older asics have a separare 3D performance state,
874 * so try that first if the user selected performance
875 */
876 if (dpm_state == POWER_STATE_TYPE_PERFORMANCE)
877 dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF;
878 /* balanced states don't exist at the moment */
879 if (dpm_state == POWER_STATE_TYPE_BALANCED)
880 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
881
882 restart_search:
883 /* Pick the best power state based on current conditions */
884 for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
885 ps = &rdev->pm.dpm.ps[i];
886 ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK;
887 switch (dpm_state) {
888 /* user states */
889 case POWER_STATE_TYPE_BATTERY:
890 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) {
891 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
892 if (single_display)
893 return ps;
894 } else
895 return ps;
896 }
897 break;
898 case POWER_STATE_TYPE_BALANCED:
899 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BALANCED) {
900 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
901 if (single_display)
902 return ps;
903 } else
904 return ps;
905 }
906 break;
907 case POWER_STATE_TYPE_PERFORMANCE:
908 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) {
909 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
910 if (single_display)
911 return ps;
912 } else
913 return ps;
914 }
915 break;
916 /* internal states */
917 case POWER_STATE_TYPE_INTERNAL_UVD:
918 if (rdev->pm.dpm.uvd_ps)
919 return rdev->pm.dpm.uvd_ps;
920 else
921 break;
922 case POWER_STATE_TYPE_INTERNAL_UVD_SD:
923 if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
924 return ps;
925 break;
926 case POWER_STATE_TYPE_INTERNAL_UVD_HD:
927 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
928 return ps;
929 break;
930 case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
931 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
932 return ps;
933 break;
934 case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
935 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
936 return ps;
937 break;
938 case POWER_STATE_TYPE_INTERNAL_BOOT:
939 return rdev->pm.dpm.boot_ps;
940 case POWER_STATE_TYPE_INTERNAL_THERMAL:
941 if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
942 return ps;
943 break;
944 case POWER_STATE_TYPE_INTERNAL_ACPI:
945 if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI)
946 return ps;
947 break;
948 case POWER_STATE_TYPE_INTERNAL_ULV:
949 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV)
950 return ps;
951 break;
952 case POWER_STATE_TYPE_INTERNAL_3DPERF:
953 if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
954 return ps;
955 break;
956 default:
957 break;
958 }
959 }
960 /* use a fallback state if we didn't match */
961 switch (dpm_state) {
962 case POWER_STATE_TYPE_INTERNAL_UVD_SD:
963 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
964 goto restart_search;
965 case POWER_STATE_TYPE_INTERNAL_UVD_HD:
966 case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
967 case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
968 if (rdev->pm.dpm.uvd_ps) {
969 return rdev->pm.dpm.uvd_ps;
970 } else {
971 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
972 goto restart_search;
973 }
974 case POWER_STATE_TYPE_INTERNAL_THERMAL:
975 dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI;
976 goto restart_search;
977 case POWER_STATE_TYPE_INTERNAL_ACPI:
978 dpm_state = POWER_STATE_TYPE_BATTERY;
979 goto restart_search;
980 case POWER_STATE_TYPE_BATTERY:
981 case POWER_STATE_TYPE_BALANCED:
982 case POWER_STATE_TYPE_INTERNAL_3DPERF:
983 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
984 goto restart_search;
985 default:
986 break;
987 }
988
989 return NULL;
990 }
991
992 static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
993 {
994 int i;
995 struct radeon_ps *ps;
996 enum radeon_pm_state_type dpm_state;
997 int ret;
998 bool single_display = radeon_dpm_single_display(rdev);
999
1000 /* if dpm init failed */
1001 if (!rdev->pm.dpm_enabled)
1002 return;
1003
1004 if (rdev->pm.dpm.user_state != rdev->pm.dpm.state) {
1005 /* add other state override checks here */
1006 if ((!rdev->pm.dpm.thermal_active) &&
1007 (!rdev->pm.dpm.uvd_active))
1008 rdev->pm.dpm.state = rdev->pm.dpm.user_state;
1009 }
1010 dpm_state = rdev->pm.dpm.state;
1011
1012 ps = radeon_dpm_pick_power_state(rdev, dpm_state);
1013 if (ps)
1014 rdev->pm.dpm.requested_ps = ps;
1015 else
1016 return;
1017
1018 /* no need to reprogram if nothing changed unless we are on BTC+ */
1019 if (rdev->pm.dpm.current_ps == rdev->pm.dpm.requested_ps) {
1020 /* vce just modifies an existing state so force a change */
1021 if (ps->vce_active != rdev->pm.dpm.vce_active)
1022 goto force;
1023 /* user has made a display change (such as timing) */
1024 if (rdev->pm.dpm.single_display != single_display)
1025 goto force;
1026 if ((rdev->family < CHIP_BARTS) || (rdev->flags & RADEON_IS_IGP)) {
1027 /* for pre-BTC and APUs if the num crtcs changed but state is the same,
1028 * all we need to do is update the display configuration.
1029 */
1030 if (rdev->pm.dpm.new_active_crtcs != rdev->pm.dpm.current_active_crtcs) {
1031 /* update display watermarks based on new power state */
1032 radeon_bandwidth_update(rdev);
1033 /* update displays */
1034 radeon_dpm_display_configuration_changed(rdev);
1035 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
1036 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
1037 }
1038 return;
1039 } else {
1040 /* for BTC+ if the num crtcs hasn't changed and state is the same,
1041 * nothing to do, if the num crtcs is > 1 and state is the same,
1042 * update display configuration.
1043 */
1044 if (rdev->pm.dpm.new_active_crtcs ==
1045 rdev->pm.dpm.current_active_crtcs) {
1046 return;
1047 } else {
1048 if ((rdev->pm.dpm.current_active_crtc_count > 1) &&
1049 (rdev->pm.dpm.new_active_crtc_count > 1)) {
1050 /* update display watermarks based on new power state */
1051 radeon_bandwidth_update(rdev);
1052 /* update displays */
1053 radeon_dpm_display_configuration_changed(rdev);
1054 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
1055 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
1056 return;
1057 }
1058 }
1059 }
1060 }
1061
1062 force:
1063 if (radeon_dpm == 1) {
1064 printk("switching from power state:\n");
1065 radeon_dpm_print_power_state(rdev, rdev->pm.dpm.current_ps);
1066 printk("switching to power state:\n");
1067 radeon_dpm_print_power_state(rdev, rdev->pm.dpm.requested_ps);
1068 }
1069
1070 down_write(&rdev->pm.mclk_lock);
1071 mutex_lock(&rdev->ring_lock);
1072
1073 /* update whether vce is active */
1074 ps->vce_active = rdev->pm.dpm.vce_active;
1075
1076 ret = radeon_dpm_pre_set_power_state(rdev);
1077 if (ret)
1078 goto done;
1079
1080 /* update display watermarks based on new power state */
1081 radeon_bandwidth_update(rdev);
1082 /* update displays */
1083 radeon_dpm_display_configuration_changed(rdev);
1084
1085 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
1086 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
1087 rdev->pm.dpm.single_display = single_display;
1088
1089 /* wait for the rings to drain */
1090 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1091 struct radeon_ring *ring = &rdev->ring[i];
1092 if (ring->ready)
1093 radeon_fence_wait_empty(rdev, i);
1094 }
1095
1096 /* program the new power state */
1097 radeon_dpm_set_power_state(rdev);
1098
1099 /* update current power state */
1100 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps;
1101
1102 radeon_dpm_post_set_power_state(rdev);
1103
1104 if (rdev->asic->dpm.force_performance_level) {
1105 if (rdev->pm.dpm.thermal_active) {
1106 enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
1107 /* force low perf level for thermal */
1108 radeon_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_LOW);
1109 /* save the user's level */
1110 rdev->pm.dpm.forced_level = level;
1111 } else {
1112 /* otherwise, user selected level */
1113 radeon_dpm_force_performance_level(rdev, rdev->pm.dpm.forced_level);
1114 }
1115 }
1116
1117 done:
1118 mutex_unlock(&rdev->ring_lock);
1119 up_write(&rdev->pm.mclk_lock);
1120 }
1121
1122 void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable)
1123 {
1124 enum radeon_pm_state_type dpm_state;
1125
1126 if (rdev->asic->dpm.powergate_uvd) {
1127 mutex_lock(&rdev->pm.mutex);
1128 /* don't powergate anything if we
1129 have active but pause streams */
1130 enable |= rdev->pm.dpm.sd > 0;
1131 enable |= rdev->pm.dpm.hd > 0;
1132 /* enable/disable UVD */
1133 radeon_dpm_powergate_uvd(rdev, !enable);
1134 mutex_unlock(&rdev->pm.mutex);
1135 } else {
1136 if (enable) {
1137 mutex_lock(&rdev->pm.mutex);
1138 rdev->pm.dpm.uvd_active = true;
1139 /* disable this for now */
1140 #if 0
1141 if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0))
1142 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD;
1143 else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0))
1144 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
1145 else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 1))
1146 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
1147 else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2))
1148 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2;
1149 else
1150 #endif
1151 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD;
1152 rdev->pm.dpm.state = dpm_state;
1153 mutex_unlock(&rdev->pm.mutex);
1154 } else {
1155 mutex_lock(&rdev->pm.mutex);
1156 rdev->pm.dpm.uvd_active = false;
1157 mutex_unlock(&rdev->pm.mutex);
1158 }
1159
1160 radeon_pm_compute_clocks(rdev);
1161 }
1162 }
1163
1164 void radeon_dpm_enable_vce(struct radeon_device *rdev, bool enable)
1165 {
1166 if (enable) {
1167 mutex_lock(&rdev->pm.mutex);
1168 rdev->pm.dpm.vce_active = true;
1169 /* XXX select vce level based on ring/task */
1170 rdev->pm.dpm.vce_level = RADEON_VCE_LEVEL_AC_ALL;
1171 mutex_unlock(&rdev->pm.mutex);
1172 } else {
1173 mutex_lock(&rdev->pm.mutex);
1174 rdev->pm.dpm.vce_active = false;
1175 mutex_unlock(&rdev->pm.mutex);
1176 }
1177
1178 radeon_pm_compute_clocks(rdev);
1179 }
1180
1181 static void radeon_pm_suspend_old(struct radeon_device *rdev)
1182 {
1183 mutex_lock(&rdev->pm.mutex);
1184 if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
1185 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE)
1186 rdev->pm.dynpm_state = DYNPM_STATE_SUSPENDED;
1187 }
1188 mutex_unlock(&rdev->pm.mutex);
1189
1190 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
1191 }
1192
1193 static void radeon_pm_suspend_dpm(struct radeon_device *rdev)
1194 {
1195 mutex_lock(&rdev->pm.mutex);
1196 /* disable dpm */
1197 radeon_dpm_disable(rdev);
1198 /* reset the power state */
1199 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps;
1200 rdev->pm.dpm_enabled = false;
1201 mutex_unlock(&rdev->pm.mutex);
1202 }
1203
1204 void radeon_pm_suspend(struct radeon_device *rdev)
1205 {
1206 if (rdev->pm.pm_method == PM_METHOD_DPM)
1207 radeon_pm_suspend_dpm(rdev);
1208 else
1209 radeon_pm_suspend_old(rdev);
1210 }
1211
1212 static void radeon_pm_resume_old(struct radeon_device *rdev)
1213 {
1214 /* set up the default clocks if the MC ucode is loaded */
1215 if ((rdev->family >= CHIP_BARTS) &&
1216 (rdev->family <= CHIP_CAYMAN) &&
1217 rdev->mc_fw) {
1218 if (rdev->pm.default_vddc)
1219 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1220 SET_VOLTAGE_TYPE_ASIC_VDDC);
1221 if (rdev->pm.default_vddci)
1222 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1223 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1224 if (rdev->pm.default_sclk)
1225 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1226 if (rdev->pm.default_mclk)
1227 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1228 }
1229 /* asic init will reset the default power state */
1230 mutex_lock(&rdev->pm.mutex);
1231 rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
1232 rdev->pm.current_clock_mode_index = 0;
1233 rdev->pm.current_sclk = rdev->pm.default_sclk;
1234 rdev->pm.current_mclk = rdev->pm.default_mclk;
1235 if (rdev->pm.power_state) {
1236 rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
1237 rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci;
1238 }
1239 if (rdev->pm.pm_method == PM_METHOD_DYNPM
1240 && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) {
1241 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
1242 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1243 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1244 }
1245 mutex_unlock(&rdev->pm.mutex);
1246 radeon_pm_compute_clocks(rdev);
1247 }
1248
1249 static void radeon_pm_resume_dpm(struct radeon_device *rdev)
1250 {
1251 int ret;
1252
1253 /* asic init will reset to the boot state */
1254 mutex_lock(&rdev->pm.mutex);
1255 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps;
1256 radeon_dpm_setup_asic(rdev);
1257 ret = radeon_dpm_enable(rdev);
1258 mutex_unlock(&rdev->pm.mutex);
1259 if (ret)
1260 goto dpm_resume_fail;
1261 rdev->pm.dpm_enabled = true;
1262 return;
1263
1264 dpm_resume_fail:
1265 DRM_ERROR("radeon: dpm resume failed\n");
1266 if ((rdev->family >= CHIP_BARTS) &&
1267 (rdev->family <= CHIP_CAYMAN) &&
1268 rdev->mc_fw) {
1269 if (rdev->pm.default_vddc)
1270 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1271 SET_VOLTAGE_TYPE_ASIC_VDDC);
1272 if (rdev->pm.default_vddci)
1273 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1274 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1275 if (rdev->pm.default_sclk)
1276 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1277 if (rdev->pm.default_mclk)
1278 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1279 }
1280 }
1281
1282 void radeon_pm_resume(struct radeon_device *rdev)
1283 {
1284 if (rdev->pm.pm_method == PM_METHOD_DPM)
1285 radeon_pm_resume_dpm(rdev);
1286 else
1287 radeon_pm_resume_old(rdev);
1288 }
1289
1290 static int radeon_pm_init_old(struct radeon_device *rdev)
1291 {
1292 int ret;
1293
1294 rdev->pm.profile = PM_PROFILE_DEFAULT;
1295 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
1296 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
1297 rdev->pm.dynpm_can_upclock = true;
1298 rdev->pm.dynpm_can_downclock = true;
1299 rdev->pm.default_sclk = rdev->clock.default_sclk;
1300 rdev->pm.default_mclk = rdev->clock.default_mclk;
1301 rdev->pm.current_sclk = rdev->clock.default_sclk;
1302 rdev->pm.current_mclk = rdev->clock.default_mclk;
1303 rdev->pm.int_thermal_type = THERMAL_TYPE_NONE;
1304
1305 if (rdev->bios) {
1306 if (rdev->is_atom_bios)
1307 radeon_atombios_get_power_modes(rdev);
1308 else
1309 radeon_combios_get_power_modes(rdev);
1310 radeon_pm_print_states(rdev);
1311 radeon_pm_init_profile(rdev);
1312 /* set up the default clocks if the MC ucode is loaded */
1313 if ((rdev->family >= CHIP_BARTS) &&
1314 (rdev->family <= CHIP_CAYMAN) &&
1315 rdev->mc_fw) {
1316 if (rdev->pm.default_vddc)
1317 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1318 SET_VOLTAGE_TYPE_ASIC_VDDC);
1319 if (rdev->pm.default_vddci)
1320 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1321 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1322 if (rdev->pm.default_sclk)
1323 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1324 if (rdev->pm.default_mclk)
1325 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1326 }
1327 }
1328
1329 /* set up the internal thermal sensor if applicable */
1330 ret = radeon_hwmon_init(rdev);
1331 if (ret)
1332 return ret;
1333
1334 INIT_DELAYED_WORK(&rdev->pm.dynpm_idle_work, radeon_dynpm_idle_work_handler);
1335
1336 if (rdev->pm.num_power_states > 1) {
1337 if (radeon_debugfs_pm_init(rdev)) {
1338 DRM_ERROR("Failed to register debugfs file for PM!\n");
1339 }
1340
1341 DRM_INFO("radeon: power management initialized\n");
1342 }
1343
1344 return 0;
1345 }
1346
1347 static void radeon_dpm_print_power_states(struct radeon_device *rdev)
1348 {
1349 int i;
1350
1351 for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
1352 printk("== power state %d ==\n", i);
1353 radeon_dpm_print_power_state(rdev, &rdev->pm.dpm.ps[i]);
1354 }
1355 }
1356
1357 static int radeon_pm_init_dpm(struct radeon_device *rdev)
1358 {
1359 int ret;
1360
1361 /* default to balanced state */
1362 rdev->pm.dpm.state = POWER_STATE_TYPE_BALANCED;
1363 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED;
1364 rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO;
1365 rdev->pm.default_sclk = rdev->clock.default_sclk;
1366 rdev->pm.default_mclk = rdev->clock.default_mclk;
1367 rdev->pm.current_sclk = rdev->clock.default_sclk;
1368 rdev->pm.current_mclk = rdev->clock.default_mclk;
1369 rdev->pm.int_thermal_type = THERMAL_TYPE_NONE;
1370
1371 if (rdev->bios && rdev->is_atom_bios)
1372 radeon_atombios_get_power_modes(rdev);
1373 else
1374 return -EINVAL;
1375
1376 /* set up the internal thermal sensor if applicable */
1377 ret = radeon_hwmon_init(rdev);
1378 if (ret)
1379 return ret;
1380
1381 INIT_WORK(&rdev->pm.dpm.thermal.work, radeon_dpm_thermal_work_handler);
1382 mutex_lock(&rdev->pm.mutex);
1383 radeon_dpm_init(rdev);
1384 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps;
1385 if (radeon_dpm == 1)
1386 radeon_dpm_print_power_states(rdev);
1387 radeon_dpm_setup_asic(rdev);
1388 ret = radeon_dpm_enable(rdev);
1389 mutex_unlock(&rdev->pm.mutex);
1390 if (ret)
1391 goto dpm_failed;
1392 rdev->pm.dpm_enabled = true;
1393
1394 if (radeon_debugfs_pm_init(rdev)) {
1395 DRM_ERROR("Failed to register debugfs file for dpm!\n");
1396 }
1397
1398 DRM_INFO("radeon: dpm initialized\n");
1399
1400 return 0;
1401
1402 dpm_failed:
1403 rdev->pm.dpm_enabled = false;
1404 if ((rdev->family >= CHIP_BARTS) &&
1405 (rdev->family <= CHIP_CAYMAN) &&
1406 rdev->mc_fw) {
1407 if (rdev->pm.default_vddc)
1408 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1409 SET_VOLTAGE_TYPE_ASIC_VDDC);
1410 if (rdev->pm.default_vddci)
1411 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1412 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1413 if (rdev->pm.default_sclk)
1414 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1415 if (rdev->pm.default_mclk)
1416 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1417 }
1418 DRM_ERROR("radeon: dpm initialization failed\n");
1419 return ret;
1420 }
1421
1422 struct radeon_dpm_quirk {
1423 u32 chip_vendor;
1424 u32 chip_device;
1425 u32 subsys_vendor;
1426 u32 subsys_device;
1427 };
1428
1429 /* cards with dpm stability problems */
1430 static struct radeon_dpm_quirk radeon_dpm_quirk_list[] = {
1431 /* TURKS - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386534 */
1432 { PCI_VENDOR_ID_ATI, 0x6759, 0x1682, 0x3195 },
1433 /* TURKS - https://bugzilla.kernel.org/show_bug.cgi?id=83731 */
1434 { PCI_VENDOR_ID_ATI, 0x6840, 0x1179, 0xfb81 },
1435 { 0, 0, 0, 0 },
1436 };
1437
1438 int radeon_pm_init(struct radeon_device *rdev)
1439 {
1440 struct radeon_dpm_quirk *p = radeon_dpm_quirk_list;
1441 bool disable_dpm = false;
1442
1443 /* Apply dpm quirks */
1444 while (p && p->chip_device != 0) {
1445 if (rdev->pdev->vendor == p->chip_vendor &&
1446 rdev->pdev->device == p->chip_device &&
1447 rdev->pdev->subsystem_vendor == p->subsys_vendor &&
1448 rdev->pdev->subsystem_device == p->subsys_device) {
1449 disable_dpm = true;
1450 break;
1451 }
1452 ++p;
1453 }
1454
1455 /* enable dpm on rv6xx+ */
1456 switch (rdev->family) {
1457 case CHIP_RV610:
1458 case CHIP_RV630:
1459 case CHIP_RV620:
1460 case CHIP_RV635:
1461 case CHIP_RV670:
1462 case CHIP_RS780:
1463 case CHIP_RS880:
1464 case CHIP_RV770:
1465 /* DPM requires the RLC, RV770+ dGPU requires SMC */
1466 if (!rdev->rlc_fw)
1467 rdev->pm.pm_method = PM_METHOD_PROFILE;
1468 else if ((rdev->family >= CHIP_RV770) &&
1469 (!(rdev->flags & RADEON_IS_IGP)) &&
1470 (!rdev->smc_fw))
1471 rdev->pm.pm_method = PM_METHOD_PROFILE;
1472 else if (radeon_dpm == 1)
1473 rdev->pm.pm_method = PM_METHOD_DPM;
1474 else
1475 rdev->pm.pm_method = PM_METHOD_PROFILE;
1476 break;
1477 case CHIP_RV730:
1478 case CHIP_RV710:
1479 case CHIP_RV740:
1480 case CHIP_CEDAR:
1481 case CHIP_REDWOOD:
1482 case CHIP_JUNIPER:
1483 case CHIP_CYPRESS:
1484 case CHIP_HEMLOCK:
1485 case CHIP_PALM:
1486 case CHIP_SUMO:
1487 case CHIP_SUMO2:
1488 case CHIP_BARTS:
1489 case CHIP_TURKS:
1490 case CHIP_CAICOS:
1491 case CHIP_CAYMAN:
1492 case CHIP_ARUBA:
1493 case CHIP_TAHITI:
1494 case CHIP_PITCAIRN:
1495 case CHIP_VERDE:
1496 case CHIP_OLAND:
1497 case CHIP_HAINAN:
1498 case CHIP_BONAIRE:
1499 case CHIP_KABINI:
1500 case CHIP_KAVERI:
1501 case CHIP_HAWAII:
1502 case CHIP_MULLINS:
1503 /* DPM requires the RLC, RV770+ dGPU requires SMC */
1504 if (!rdev->rlc_fw)
1505 rdev->pm.pm_method = PM_METHOD_PROFILE;
1506 else if ((rdev->family >= CHIP_RV770) &&
1507 (!(rdev->flags & RADEON_IS_IGP)) &&
1508 (!rdev->smc_fw))
1509 rdev->pm.pm_method = PM_METHOD_PROFILE;
1510 else if (disable_dpm && (radeon_dpm == -1))
1511 rdev->pm.pm_method = PM_METHOD_PROFILE;
1512 else if (radeon_dpm == 0)
1513 rdev->pm.pm_method = PM_METHOD_PROFILE;
1514 else
1515 rdev->pm.pm_method = PM_METHOD_DPM;
1516 break;
1517 default:
1518 /* default to profile method */
1519 rdev->pm.pm_method = PM_METHOD_PROFILE;
1520 break;
1521 }
1522
1523 if (rdev->pm.pm_method == PM_METHOD_DPM)
1524 return radeon_pm_init_dpm(rdev);
1525 else
1526 return radeon_pm_init_old(rdev);
1527 }
1528
1529 int radeon_pm_late_init(struct radeon_device *rdev)
1530 {
1531 int ret = 0;
1532
1533 if (rdev->pm.pm_method == PM_METHOD_DPM) {
1534 if (rdev->pm.dpm_enabled) {
1535 if (!rdev->pm.sysfs_initialized) {
1536 ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
1537 if (ret)
1538 DRM_ERROR("failed to create device file for dpm state\n");
1539 ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
1540 if (ret)
1541 DRM_ERROR("failed to create device file for dpm state\n");
1542 /* XXX: these are noops for dpm but are here for backwards compat */
1543 ret = device_create_file(rdev->dev, &dev_attr_power_profile);
1544 if (ret)
1545 DRM_ERROR("failed to create device file for power profile\n");
1546 ret = device_create_file(rdev->dev, &dev_attr_power_method);
1547 if (ret)
1548 DRM_ERROR("failed to create device file for power method\n");
1549 rdev->pm.sysfs_initialized = true;
1550 }
1551
1552 mutex_lock(&rdev->pm.mutex);
1553 ret = radeon_dpm_late_enable(rdev);
1554 mutex_unlock(&rdev->pm.mutex);
1555 if (ret) {
1556 rdev->pm.dpm_enabled = false;
1557 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1558 } else {
1559 /* set the dpm state for PX since there won't be
1560 * a modeset to call this.
1561 */
1562 radeon_pm_compute_clocks(rdev);
1563 }
1564 }
1565 } else {
1566 if ((rdev->pm.num_power_states > 1) &&
1567 (!rdev->pm.sysfs_initialized)) {
1568 /* where's the best place to put these? */
1569 ret = device_create_file(rdev->dev, &dev_attr_power_profile);
1570 if (ret)
1571 DRM_ERROR("failed to create device file for power profile\n");
1572 ret = device_create_file(rdev->dev, &dev_attr_power_method);
1573 if (ret)
1574 DRM_ERROR("failed to create device file for power method\n");
1575 if (!ret)
1576 rdev->pm.sysfs_initialized = true;
1577 }
1578 }
1579 return ret;
1580 }
1581
1582 static void radeon_pm_fini_old(struct radeon_device *rdev)
1583 {
1584 if (rdev->pm.num_power_states > 1) {
1585 mutex_lock(&rdev->pm.mutex);
1586 if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
1587 rdev->pm.profile = PM_PROFILE_DEFAULT;
1588 radeon_pm_update_profile(rdev);
1589 radeon_pm_set_clocks(rdev);
1590 } else if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
1591 /* reset default clocks */
1592 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
1593 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
1594 radeon_pm_set_clocks(rdev);
1595 }
1596 mutex_unlock(&rdev->pm.mutex);
1597
1598 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
1599
1600 device_remove_file(rdev->dev, &dev_attr_power_profile);
1601 device_remove_file(rdev->dev, &dev_attr_power_method);
1602 }
1603
1604 radeon_hwmon_fini(rdev);
1605 kfree(rdev->pm.power_state);
1606 }
1607
1608 static void radeon_pm_fini_dpm(struct radeon_device *rdev)
1609 {
1610 if (rdev->pm.num_power_states > 1) {
1611 mutex_lock(&rdev->pm.mutex);
1612 radeon_dpm_disable(rdev);
1613 mutex_unlock(&rdev->pm.mutex);
1614
1615 device_remove_file(rdev->dev, &dev_attr_power_dpm_state);
1616 device_remove_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
1617 /* XXX backwards compat */
1618 device_remove_file(rdev->dev, &dev_attr_power_profile);
1619 device_remove_file(rdev->dev, &dev_attr_power_method);
1620 }
1621 radeon_dpm_fini(rdev);
1622
1623 radeon_hwmon_fini(rdev);
1624 kfree(rdev->pm.power_state);
1625 }
1626
1627 void radeon_pm_fini(struct radeon_device *rdev)
1628 {
1629 if (rdev->pm.pm_method == PM_METHOD_DPM)
1630 radeon_pm_fini_dpm(rdev);
1631 else
1632 radeon_pm_fini_old(rdev);
1633 }
1634
1635 static void radeon_pm_compute_clocks_old(struct radeon_device *rdev)
1636 {
1637 struct drm_device *ddev = rdev->ddev;
1638 struct drm_crtc *crtc;
1639 struct radeon_crtc *radeon_crtc;
1640
1641 if (rdev->pm.num_power_states < 2)
1642 return;
1643
1644 mutex_lock(&rdev->pm.mutex);
1645
1646 rdev->pm.active_crtcs = 0;
1647 rdev->pm.active_crtc_count = 0;
1648 if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) {
1649 list_for_each_entry(crtc,
1650 &ddev->mode_config.crtc_list, head) {
1651 radeon_crtc = to_radeon_crtc(crtc);
1652 if (radeon_crtc->enabled) {
1653 rdev->pm.active_crtcs |= (1 << radeon_crtc->crtc_id);
1654 rdev->pm.active_crtc_count++;
1655 }
1656 }
1657 }
1658
1659 if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
1660 radeon_pm_update_profile(rdev);
1661 radeon_pm_set_clocks(rdev);
1662 } else if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
1663 if (rdev->pm.dynpm_state != DYNPM_STATE_DISABLED) {
1664 if (rdev->pm.active_crtc_count > 1) {
1665 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) {
1666 cancel_delayed_work(&rdev->pm.dynpm_idle_work);
1667
1668 rdev->pm.dynpm_state = DYNPM_STATE_PAUSED;
1669 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
1670 radeon_pm_get_dynpm_state(rdev);
1671 radeon_pm_set_clocks(rdev);
1672
1673 DRM_DEBUG_DRIVER("radeon: dynamic power management deactivated\n");
1674 }
1675 } else if (rdev->pm.active_crtc_count == 1) {
1676 /* TODO: Increase clocks if needed for current mode */
1677
1678 if (rdev->pm.dynpm_state == DYNPM_STATE_MINIMUM) {
1679 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
1680 rdev->pm.dynpm_planned_action = DYNPM_ACTION_UPCLOCK;
1681 radeon_pm_get_dynpm_state(rdev);
1682 radeon_pm_set_clocks(rdev);
1683
1684 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1685 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1686 } else if (rdev->pm.dynpm_state == DYNPM_STATE_PAUSED) {
1687 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
1688 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1689 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1690 DRM_DEBUG_DRIVER("radeon: dynamic power management activated\n");
1691 }
1692 } else { /* count == 0 */
1693 if (rdev->pm.dynpm_state != DYNPM_STATE_MINIMUM) {
1694 cancel_delayed_work(&rdev->pm.dynpm_idle_work);
1695
1696 rdev->pm.dynpm_state = DYNPM_STATE_MINIMUM;
1697 rdev->pm.dynpm_planned_action = DYNPM_ACTION_MINIMUM;
1698 radeon_pm_get_dynpm_state(rdev);
1699 radeon_pm_set_clocks(rdev);
1700 }
1701 }
1702 }
1703 }
1704
1705 mutex_unlock(&rdev->pm.mutex);
1706 }
1707
1708 static void radeon_pm_compute_clocks_dpm(struct radeon_device *rdev)
1709 {
1710 struct drm_device *ddev = rdev->ddev;
1711 struct drm_crtc *crtc;
1712 struct radeon_crtc *radeon_crtc;
1713
1714 if (!rdev->pm.dpm_enabled)
1715 return;
1716
1717 mutex_lock(&rdev->pm.mutex);
1718
1719 /* update active crtc counts */
1720 rdev->pm.dpm.new_active_crtcs = 0;
1721 rdev->pm.dpm.new_active_crtc_count = 0;
1722 if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) {
1723 list_for_each_entry(crtc,
1724 &ddev->mode_config.crtc_list, head) {
1725 radeon_crtc = to_radeon_crtc(crtc);
1726 if (crtc->enabled) {
1727 rdev->pm.dpm.new_active_crtcs |= (1 << radeon_crtc->crtc_id);
1728 rdev->pm.dpm.new_active_crtc_count++;
1729 }
1730 }
1731 }
1732
1733 /* update battery/ac status */
1734 if (power_supply_is_system_supplied() > 0)
1735 rdev->pm.dpm.ac_power = true;
1736 else
1737 rdev->pm.dpm.ac_power = false;
1738
1739 radeon_dpm_change_power_state_locked(rdev);
1740
1741 mutex_unlock(&rdev->pm.mutex);
1742
1743 }
1744
1745 void radeon_pm_compute_clocks(struct radeon_device *rdev)
1746 {
1747 if (rdev->pm.pm_method == PM_METHOD_DPM)
1748 radeon_pm_compute_clocks_dpm(rdev);
1749 else
1750 radeon_pm_compute_clocks_old(rdev);
1751 }
1752
1753 static bool radeon_pm_in_vbl(struct radeon_device *rdev)
1754 {
1755 int crtc, vpos, hpos, vbl_status;
1756 bool in_vbl = true;
1757
1758 /* Iterate over all active crtc's. All crtc's must be in vblank,
1759 * otherwise return in_vbl == false.
1760 */
1761 for (crtc = 0; (crtc < rdev->num_crtc) && in_vbl; crtc++) {
1762 if (rdev->pm.active_crtcs & (1 << crtc)) {
1763 vbl_status = radeon_get_crtc_scanoutpos(rdev->ddev,
1764 crtc,
1765 USE_REAL_VBLANKSTART,
1766 &vpos, &hpos, NULL, NULL,
1767 &rdev->mode_info.crtcs[crtc]->base.hwmode);
1768 if ((vbl_status & DRM_SCANOUTPOS_VALID) &&
1769 !(vbl_status & DRM_SCANOUTPOS_IN_VBLANK))
1770 in_vbl = false;
1771 }
1772 }
1773
1774 return in_vbl;
1775 }
1776
1777 static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish)
1778 {
1779 u32 stat_crtc = 0;
1780 bool in_vbl = radeon_pm_in_vbl(rdev);
1781
1782 if (in_vbl == false)
1783 DRM_DEBUG_DRIVER("not in vbl for pm change %08x at %s\n", stat_crtc,
1784 finish ? "exit" : "entry");
1785 return in_vbl;
1786 }
1787
1788 static void radeon_dynpm_idle_work_handler(struct work_struct *work)
1789 {
1790 struct radeon_device *rdev;
1791 int resched;
1792 rdev = container_of(work, struct radeon_device,
1793 pm.dynpm_idle_work.work);
1794
1795 resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
1796 mutex_lock(&rdev->pm.mutex);
1797 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) {
1798 int not_processed = 0;
1799 int i;
1800
1801 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1802 struct radeon_ring *ring = &rdev->ring[i];
1803
1804 if (ring->ready) {
1805 not_processed += radeon_fence_count_emitted(rdev, i);
1806 if (not_processed >= 3)
1807 break;
1808 }
1809 }
1810
1811 if (not_processed >= 3) { /* should upclock */
1812 if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_DOWNCLOCK) {
1813 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
1814 } else if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_NONE &&
1815 rdev->pm.dynpm_can_upclock) {
1816 rdev->pm.dynpm_planned_action =
1817 DYNPM_ACTION_UPCLOCK;
1818 rdev->pm.dynpm_action_timeout = jiffies +
1819 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS);
1820 }
1821 } else if (not_processed == 0) { /* should downclock */
1822 if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_UPCLOCK) {
1823 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
1824 } else if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_NONE &&
1825 rdev->pm.dynpm_can_downclock) {
1826 rdev->pm.dynpm_planned_action =
1827 DYNPM_ACTION_DOWNCLOCK;
1828 rdev->pm.dynpm_action_timeout = jiffies +
1829 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS);
1830 }
1831 }
1832
1833 /* Note, radeon_pm_set_clocks is called with static_switch set
1834 * to false since we want to wait for vbl to avoid flicker.
1835 */
1836 if (rdev->pm.dynpm_planned_action != DYNPM_ACTION_NONE &&
1837 jiffies > rdev->pm.dynpm_action_timeout) {
1838 radeon_pm_get_dynpm_state(rdev);
1839 radeon_pm_set_clocks(rdev);
1840 }
1841
1842 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1843 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1844 }
1845 mutex_unlock(&rdev->pm.mutex);
1846 ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
1847 }
1848
1849 /*
1850 * Debugfs info
1851 */
1852 #if defined(CONFIG_DEBUG_FS)
1853
1854 static int radeon_debugfs_pm_info(struct seq_file *m, void *data)
1855 {
1856 struct drm_info_node *node = (struct drm_info_node *) m->private;
1857 struct drm_device *dev = node->minor->dev;
1858 struct radeon_device *rdev = dev->dev_private;
1859 struct drm_device *ddev = rdev->ddev;
1860
1861 if ((rdev->flags & RADEON_IS_PX) &&
1862 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) {
1863 seq_printf(m, "PX asic powered off\n");
1864 } else if (rdev->pm.dpm_enabled) {
1865 mutex_lock(&rdev->pm.mutex);
1866 if (rdev->asic->dpm.debugfs_print_current_performance_level)
1867 radeon_dpm_debugfs_print_current_performance_level(rdev, m);
1868 else
1869 seq_printf(m, "Debugfs support not implemented for this asic\n");
1870 mutex_unlock(&rdev->pm.mutex);
1871 } else {
1872 seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk);
1873 /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */
1874 if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP))
1875 seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk);
1876 else
1877 seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev));
1878 seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk);
1879 if (rdev->asic->pm.get_memory_clock)
1880 seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev));
1881 if (rdev->pm.current_vddc)
1882 seq_printf(m, "voltage: %u mV\n", rdev->pm.current_vddc);
1883 if (rdev->asic->pm.get_pcie_lanes)
1884 seq_printf(m, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev));
1885 }
1886
1887 return 0;
1888 }
1889
1890 static struct drm_info_list radeon_pm_info_list[] = {
1891 {"radeon_pm_info", radeon_debugfs_pm_info, 0, NULL},
1892 };
1893 #endif
1894
1895 static int radeon_debugfs_pm_init(struct radeon_device *rdev)
1896 {
1897 #if defined(CONFIG_DEBUG_FS)
1898 return radeon_debugfs_add_files(rdev, radeon_pm_info_list, ARRAY_SIZE(radeon_pm_info_list));
1899 #else
1900 return 0;
1901 #endif
1902 }
Linux kernel - Deliverables
This page took 0.067799 seconds and 4 git commands to generate.