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:
9 * The above copyright notice and this permission notice shall be included in
10 * all copies or substantial portions of the Software.
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.
20 * Authors: Rafał Miłecki <zajec5@gmail.com>
21 * Alex Deucher <alexdeucher@gmail.com>
28 #include <linux/power_supply.h>
29 #include <linux/hwmon.h>
30 #include <linux/hwmon-sysfs.h>
32 #define RADEON_IDLE_LOOP_MS 100
33 #define RADEON_RECLOCK_DELAY_MS 200
34 #define RADEON_WAIT_VBLANK_TIMEOUT 200
36 static const char *radeon_pm_state_type_name[5] = {
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);
51 int radeon_pm_get_type_index(struct radeon_device *rdev,
52 enum radeon_pm_state_type ps_type,
56 int found_instance = -1;
58 for (i = 0; i < rdev->pm.num_power_states; i++) {
59 if (rdev->pm.power_state[i].type == ps_type) {
61 if (found_instance == instance)
65 /* return default if no match */
66 return rdev->pm.default_power_state_index;
69 void radeon_pm_acpi_event_handler(struct radeon_device *rdev)
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;
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);
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);
92 static void radeon_pm_update_profile(struct radeon_device *rdev)
94 switch (rdev->pm.profile) {
95 case PM_PROFILE_DEFAULT:
96 rdev->pm.profile_index = PM_PROFILE_DEFAULT_IDX;
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;
103 rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX;
105 if (rdev->pm.active_crtc_count > 1)
106 rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX;
108 rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX;
112 if (rdev->pm.active_crtc_count > 1)
113 rdev->pm.profile_index = PM_PROFILE_LOW_MH_IDX;
115 rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX;
118 if (rdev->pm.active_crtc_count > 1)
119 rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX;
121 rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX;
123 case PM_PROFILE_HIGH:
124 if (rdev->pm.active_crtc_count > 1)
125 rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX;
127 rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX;
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;
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;
144 static void radeon_unmap_vram_bos(struct radeon_device *rdev)
146 struct radeon_bo *bo, *n;
148 if (list_empty(&rdev->gem.objects))
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);
157 static void radeon_sync_with_vblank(struct radeon_device *rdev)
159 if (rdev->pm.active_crtcs) {
160 rdev->pm.vblank_sync = false;
162 rdev->irq.vblank_queue, rdev->pm.vblank_sync,
163 msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT));
167 static void radeon_set_power_state(struct radeon_device *rdev)
170 bool misc_after = false;
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))
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;
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
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;
194 mclk = rdev->pm.power_state[rdev->pm.requested_power_state_index].
195 clock_info[rdev->pm.requested_clock_mode_index].mclk;
197 if (mclk > rdev->pm.default_mclk)
198 mclk = rdev->pm.default_mclk;
200 /* upvolt before raising clocks, downvolt after lowering clocks */
201 if (sclk < rdev->pm.current_sclk)
204 radeon_sync_with_vblank(rdev);
206 if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
207 if (!radeon_pm_in_vbl(rdev))
211 radeon_pm_prepare(rdev);
214 /* voltage, pcie lanes, etc.*/
215 radeon_pm_misc(rdev);
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);
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);
236 /* voltage, pcie lanes, etc.*/
237 radeon_pm_misc(rdev);
239 radeon_pm_finish(rdev);
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;
244 DRM_DEBUG_DRIVER("pm: GUI not idle!!!\n");
247 static void radeon_pm_set_clocks(struct radeon_device *rdev)
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))
256 down_write(&rdev->pm.mclk_lock);
257 mutex_lock(&rdev->ring_lock);
259 /* wait for the rings to drain */
260 for (i = 0; i < RADEON_NUM_RINGS; i++) {
261 struct radeon_ring *ring = &rdev->ring[i];
265 r = radeon_fence_wait_empty(rdev, i);
267 /* needs a GPU reset dont reset here */
268 mutex_unlock(&rdev->ring_lock);
269 up_write(&rdev->pm.mclk_lock);
274 radeon_unmap_vram_bos(rdev);
276 if (rdev->irq.installed) {
277 for (i = 0; i < rdev->num_crtc; i++) {
278 if (rdev->pm.active_crtcs & (1 << i)) {
279 rdev->pm.req_vblank |= (1 << i);
280 drm_vblank_get(rdev->ddev, i);
285 radeon_set_power_state(rdev);
287 if (rdev->irq.installed) {
288 for (i = 0; i < rdev->num_crtc; i++) {
289 if (rdev->pm.req_vblank & (1 << i)) {
290 rdev->pm.req_vblank &= ~(1 << i);
291 drm_vblank_put(rdev->ddev, i);
296 /* update display watermarks based on new power state */
297 radeon_update_bandwidth_info(rdev);
298 if (rdev->pm.active_crtc_count)
299 radeon_bandwidth_update(rdev);
301 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
303 mutex_unlock(&rdev->ring_lock);
304 up_write(&rdev->pm.mclk_lock);
307 static void radeon_pm_print_states(struct radeon_device *rdev)
310 struct radeon_power_state *power_state;
311 struct radeon_pm_clock_info *clock_info;
313 DRM_DEBUG_DRIVER("%d Power State(s)\n", rdev->pm.num_power_states);
314 for (i = 0; i < rdev->pm.num_power_states; i++) {
315 power_state = &rdev->pm.power_state[i];
316 DRM_DEBUG_DRIVER("State %d: %s\n", i,
317 radeon_pm_state_type_name[power_state->type]);
318 if (i == rdev->pm.default_power_state_index)
319 DRM_DEBUG_DRIVER("\tDefault");
320 if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP))
321 DRM_DEBUG_DRIVER("\t%d PCIE Lanes\n", power_state->pcie_lanes);
322 if (power_state->flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
323 DRM_DEBUG_DRIVER("\tSingle display only\n");
324 DRM_DEBUG_DRIVER("\t%d Clock Mode(s)\n", power_state->num_clock_modes);
325 for (j = 0; j < power_state->num_clock_modes; j++) {
326 clock_info = &(power_state->clock_info[j]);
327 if (rdev->flags & RADEON_IS_IGP)
328 DRM_DEBUG_DRIVER("\t\t%d e: %d\n",
330 clock_info->sclk * 10);
332 DRM_DEBUG_DRIVER("\t\t%d e: %d\tm: %d\tv: %d\n",
334 clock_info->sclk * 10,
335 clock_info->mclk * 10,
336 clock_info->voltage.voltage);
341 static ssize_t radeon_get_pm_profile(struct device *dev,
342 struct device_attribute *attr,
345 struct drm_device *ddev = dev_get_drvdata(dev);
346 struct radeon_device *rdev = ddev->dev_private;
347 int cp = rdev->pm.profile;
349 return snprintf(buf, PAGE_SIZE, "%s\n",
350 (cp == PM_PROFILE_AUTO) ? "auto" :
351 (cp == PM_PROFILE_LOW) ? "low" :
352 (cp == PM_PROFILE_MID) ? "mid" :
353 (cp == PM_PROFILE_HIGH) ? "high" : "default");
356 static ssize_t radeon_set_pm_profile(struct device *dev,
357 struct device_attribute *attr,
361 struct drm_device *ddev = dev_get_drvdata(dev);
362 struct radeon_device *rdev = ddev->dev_private;
364 /* Can't set profile when the card is off */
365 if ((rdev->flags & RADEON_IS_PX) &&
366 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
369 mutex_lock(&rdev->pm.mutex);
370 if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
371 if (strncmp("default", buf, strlen("default")) == 0)
372 rdev->pm.profile = PM_PROFILE_DEFAULT;
373 else if (strncmp("auto", buf, strlen("auto")) == 0)
374 rdev->pm.profile = PM_PROFILE_AUTO;
375 else if (strncmp("low", buf, strlen("low")) == 0)
376 rdev->pm.profile = PM_PROFILE_LOW;
377 else if (strncmp("mid", buf, strlen("mid")) == 0)
378 rdev->pm.profile = PM_PROFILE_MID;
379 else if (strncmp("high", buf, strlen("high")) == 0)
380 rdev->pm.profile = PM_PROFILE_HIGH;
385 radeon_pm_update_profile(rdev);
386 radeon_pm_set_clocks(rdev);
391 mutex_unlock(&rdev->pm.mutex);
396 static ssize_t radeon_get_pm_method(struct device *dev,
397 struct device_attribute *attr,
400 struct drm_device *ddev = dev_get_drvdata(dev);
401 struct radeon_device *rdev = ddev->dev_private;
402 int pm = rdev->pm.pm_method;
404 return snprintf(buf, PAGE_SIZE, "%s\n",
405 (pm == PM_METHOD_DYNPM) ? "dynpm" :
406 (pm == PM_METHOD_PROFILE) ? "profile" : "dpm");
409 static ssize_t radeon_set_pm_method(struct device *dev,
410 struct device_attribute *attr,
414 struct drm_device *ddev = dev_get_drvdata(dev);
415 struct radeon_device *rdev = ddev->dev_private;
417 /* Can't set method when the card is off */
418 if ((rdev->flags & RADEON_IS_PX) &&
419 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) {
424 /* we don't support the legacy modes with dpm */
425 if (rdev->pm.pm_method == PM_METHOD_DPM) {
430 if (strncmp("dynpm", buf, strlen("dynpm")) == 0) {
431 mutex_lock(&rdev->pm.mutex);
432 rdev->pm.pm_method = PM_METHOD_DYNPM;
433 rdev->pm.dynpm_state = DYNPM_STATE_PAUSED;
434 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
435 mutex_unlock(&rdev->pm.mutex);
436 } else if (strncmp("profile", buf, strlen("profile")) == 0) {
437 mutex_lock(&rdev->pm.mutex);
439 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
440 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
441 rdev->pm.pm_method = PM_METHOD_PROFILE;
442 mutex_unlock(&rdev->pm.mutex);
443 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
448 radeon_pm_compute_clocks(rdev);
453 static ssize_t radeon_get_dpm_state(struct device *dev,
454 struct device_attribute *attr,
457 struct drm_device *ddev = dev_get_drvdata(dev);
458 struct radeon_device *rdev = ddev->dev_private;
459 enum radeon_pm_state_type pm = rdev->pm.dpm.user_state;
461 return snprintf(buf, PAGE_SIZE, "%s\n",
462 (pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
463 (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
466 static ssize_t radeon_set_dpm_state(struct device *dev,
467 struct device_attribute *attr,
471 struct drm_device *ddev = dev_get_drvdata(dev);
472 struct radeon_device *rdev = ddev->dev_private;
474 mutex_lock(&rdev->pm.mutex);
475 if (strncmp("battery", buf, strlen("battery")) == 0)
476 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BATTERY;
477 else if (strncmp("balanced", buf, strlen("balanced")) == 0)
478 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED;
479 else if (strncmp("performance", buf, strlen("performance")) == 0)
480 rdev->pm.dpm.user_state = POWER_STATE_TYPE_PERFORMANCE;
482 mutex_unlock(&rdev->pm.mutex);
486 mutex_unlock(&rdev->pm.mutex);
488 /* Can't set dpm state when the card is off */
489 if (!(rdev->flags & RADEON_IS_PX) ||
490 (ddev->switch_power_state == DRM_SWITCH_POWER_ON))
491 radeon_pm_compute_clocks(rdev);
497 static ssize_t radeon_get_dpm_forced_performance_level(struct device *dev,
498 struct device_attribute *attr,
501 struct drm_device *ddev = dev_get_drvdata(dev);
502 struct radeon_device *rdev = ddev->dev_private;
503 enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
505 if ((rdev->flags & RADEON_IS_PX) &&
506 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
507 return snprintf(buf, PAGE_SIZE, "off\n");
509 return snprintf(buf, PAGE_SIZE, "%s\n",
510 (level == RADEON_DPM_FORCED_LEVEL_AUTO) ? "auto" :
511 (level == RADEON_DPM_FORCED_LEVEL_LOW) ? "low" : "high");
514 static ssize_t radeon_set_dpm_forced_performance_level(struct device *dev,
515 struct device_attribute *attr,
519 struct drm_device *ddev = dev_get_drvdata(dev);
520 struct radeon_device *rdev = ddev->dev_private;
521 enum radeon_dpm_forced_level level;
524 /* Can't force performance level when the card is off */
525 if ((rdev->flags & RADEON_IS_PX) &&
526 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
529 mutex_lock(&rdev->pm.mutex);
530 if (strncmp("low", buf, strlen("low")) == 0) {
531 level = RADEON_DPM_FORCED_LEVEL_LOW;
532 } else if (strncmp("high", buf, strlen("high")) == 0) {
533 level = RADEON_DPM_FORCED_LEVEL_HIGH;
534 } else if (strncmp("auto", buf, strlen("auto")) == 0) {
535 level = RADEON_DPM_FORCED_LEVEL_AUTO;
540 if (rdev->asic->dpm.force_performance_level) {
541 if (rdev->pm.dpm.thermal_active) {
545 ret = radeon_dpm_force_performance_level(rdev, level);
550 mutex_unlock(&rdev->pm.mutex);
555 static ssize_t radeon_hwmon_get_pwm1_enable(struct device *dev,
556 struct device_attribute *attr,
559 struct radeon_device *rdev = dev_get_drvdata(dev);
562 if (rdev->asic->dpm.fan_ctrl_get_mode)
563 pwm_mode = rdev->asic->dpm.fan_ctrl_get_mode(rdev);
565 /* never 0 (full-speed), fuse or smc-controlled always */
566 return sprintf(buf, "%i\n", pwm_mode == FDO_PWM_MODE_STATIC ? 1 : 2);
569 static ssize_t radeon_hwmon_set_pwm1_enable(struct device *dev,
570 struct device_attribute *attr,
574 struct radeon_device *rdev = dev_get_drvdata(dev);
578 if(!rdev->asic->dpm.fan_ctrl_set_mode)
581 err = kstrtoint(buf, 10, &value);
586 case 1: /* manual, percent-based */
587 rdev->asic->dpm.fan_ctrl_set_mode(rdev, FDO_PWM_MODE_STATIC);
589 default: /* disable */
590 rdev->asic->dpm.fan_ctrl_set_mode(rdev, 0);
597 static ssize_t radeon_hwmon_get_pwm1_min(struct device *dev,
598 struct device_attribute *attr,
601 return sprintf(buf, "%i\n", 0);
604 static ssize_t radeon_hwmon_get_pwm1_max(struct device *dev,
605 struct device_attribute *attr,
608 return sprintf(buf, "%i\n", 255);
611 static ssize_t radeon_hwmon_set_pwm1(struct device *dev,
612 struct device_attribute *attr,
613 const char *buf, size_t count)
615 struct radeon_device *rdev = dev_get_drvdata(dev);
619 err = kstrtou32(buf, 10, &value);
623 value = (value * 100) / 255;
625 err = rdev->asic->dpm.set_fan_speed_percent(rdev, value);
632 static ssize_t radeon_hwmon_get_pwm1(struct device *dev,
633 struct device_attribute *attr,
636 struct radeon_device *rdev = dev_get_drvdata(dev);
640 err = rdev->asic->dpm.get_fan_speed_percent(rdev, &speed);
644 speed = (speed * 255) / 100;
646 return sprintf(buf, "%i\n", speed);
649 static DEVICE_ATTR(power_profile, S_IRUGO | S_IWUSR, radeon_get_pm_profile, radeon_set_pm_profile);
650 static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon_set_pm_method);
651 static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, radeon_get_dpm_state, radeon_set_dpm_state);
652 static DEVICE_ATTR(power_dpm_force_performance_level, S_IRUGO | S_IWUSR,
653 radeon_get_dpm_forced_performance_level,
654 radeon_set_dpm_forced_performance_level);
656 static ssize_t radeon_hwmon_show_temp(struct device *dev,
657 struct device_attribute *attr,
660 struct radeon_device *rdev = dev_get_drvdata(dev);
661 struct drm_device *ddev = rdev->ddev;
664 /* Can't get temperature when the card is off */
665 if ((rdev->flags & RADEON_IS_PX) &&
666 (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
669 if (rdev->asic->pm.get_temperature)
670 temp = radeon_get_temperature(rdev);
674 return snprintf(buf, PAGE_SIZE, "%d\n", temp);
677 static ssize_t radeon_hwmon_show_temp_thresh(struct device *dev,
678 struct device_attribute *attr,
681 struct radeon_device *rdev = dev_get_drvdata(dev);
682 int hyst = to_sensor_dev_attr(attr)->index;
686 temp = rdev->pm.dpm.thermal.min_temp;
688 temp = rdev->pm.dpm.thermal.max_temp;
690 return snprintf(buf, PAGE_SIZE, "%d\n", temp);
693 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, radeon_hwmon_show_temp, NULL, 0);
694 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 0);
695 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 1);
696 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, radeon_hwmon_get_pwm1, radeon_hwmon_set_pwm1, 0);
697 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, radeon_hwmon_get_pwm1_enable, radeon_hwmon_set_pwm1_enable, 0);
698 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, radeon_hwmon_get_pwm1_min, NULL, 0);
699 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, radeon_hwmon_get_pwm1_max, NULL, 0);
702 static struct attribute *hwmon_attributes[] = {
703 &sensor_dev_attr_temp1_input.dev_attr.attr,
704 &sensor_dev_attr_temp1_crit.dev_attr.attr,
705 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
706 &sensor_dev_attr_pwm1.dev_attr.attr,
707 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
708 &sensor_dev_attr_pwm1_min.dev_attr.attr,
709 &sensor_dev_attr_pwm1_max.dev_attr.attr,
713 static umode_t hwmon_attributes_visible(struct kobject *kobj,
714 struct attribute *attr, int index)
716 struct device *dev = container_of(kobj, struct device, kobj);
717 struct radeon_device *rdev = dev_get_drvdata(dev);
718 umode_t effective_mode = attr->mode;
720 /* Skip attributes if DPM is not enabled */
721 if (rdev->pm.pm_method != PM_METHOD_DPM &&
722 (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
723 attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
724 attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
725 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
726 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
727 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
730 /* Skip fan attributes if fan is not present */
731 if (rdev->pm.no_fan &&
732 (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
733 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
734 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
735 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
738 /* mask fan attributes if we have no bindings for this asic to expose */
739 if ((!rdev->asic->dpm.get_fan_speed_percent &&
740 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */
741 (!rdev->asic->dpm.fan_ctrl_get_mode &&
742 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */
743 effective_mode &= ~S_IRUGO;
745 if ((!rdev->asic->dpm.set_fan_speed_percent &&
746 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */
747 (!rdev->asic->dpm.fan_ctrl_set_mode &&
748 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */
749 effective_mode &= ~S_IWUSR;
751 /* hide max/min values if we can't both query and manage the fan */
752 if ((!rdev->asic->dpm.set_fan_speed_percent &&
753 !rdev->asic->dpm.get_fan_speed_percent) &&
754 (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
755 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
758 return effective_mode;
761 static const struct attribute_group hwmon_attrgroup = {
762 .attrs = hwmon_attributes,
763 .is_visible = hwmon_attributes_visible,
766 static const struct attribute_group *hwmon_groups[] = {
771 static int radeon_hwmon_init(struct radeon_device *rdev)
775 switch (rdev->pm.int_thermal_type) {
776 case THERMAL_TYPE_RV6XX:
777 case THERMAL_TYPE_RV770:
778 case THERMAL_TYPE_EVERGREEN:
779 case THERMAL_TYPE_NI:
780 case THERMAL_TYPE_SUMO:
781 case THERMAL_TYPE_SI:
782 case THERMAL_TYPE_CI:
783 case THERMAL_TYPE_KV:
784 if (rdev->asic->pm.get_temperature == NULL)
786 rdev->pm.int_hwmon_dev = hwmon_device_register_with_groups(rdev->dev,
789 if (IS_ERR(rdev->pm.int_hwmon_dev)) {
790 err = PTR_ERR(rdev->pm.int_hwmon_dev);
792 "Unable to register hwmon device: %d\n", err);
802 static void radeon_hwmon_fini(struct radeon_device *rdev)
804 if (rdev->pm.int_hwmon_dev)
805 hwmon_device_unregister(rdev->pm.int_hwmon_dev);
808 static void radeon_dpm_thermal_work_handler(struct work_struct *work)
810 struct radeon_device *rdev =
811 container_of(work, struct radeon_device,
812 pm.dpm.thermal.work);
813 /* switch to the thermal state */
814 enum radeon_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL;
816 if (!rdev->pm.dpm_enabled)
819 if (rdev->asic->pm.get_temperature) {
820 int temp = radeon_get_temperature(rdev);
822 if (temp < rdev->pm.dpm.thermal.min_temp)
823 /* switch back the user state */
824 dpm_state = rdev->pm.dpm.user_state;
826 if (rdev->pm.dpm.thermal.high_to_low)
827 /* switch back the user state */
828 dpm_state = rdev->pm.dpm.user_state;
830 mutex_lock(&rdev->pm.mutex);
831 if (dpm_state == POWER_STATE_TYPE_INTERNAL_THERMAL)
832 rdev->pm.dpm.thermal_active = true;
834 rdev->pm.dpm.thermal_active = false;
835 rdev->pm.dpm.state = dpm_state;
836 mutex_unlock(&rdev->pm.mutex);
838 radeon_pm_compute_clocks(rdev);
841 static bool radeon_dpm_single_display(struct radeon_device *rdev)
843 bool single_display = (rdev->pm.dpm.new_active_crtc_count < 2) ?
846 /* check if the vblank period is too short to adjust the mclk */
847 if (single_display && rdev->asic->dpm.vblank_too_short) {
848 if (radeon_dpm_vblank_too_short(rdev))
849 single_display = false;
852 /* 120hz tends to be problematic even if they are under the
855 if (single_display && (r600_dpm_get_vrefresh(rdev) >= 120))
856 single_display = false;
858 return single_display;
861 static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev,
862 enum radeon_pm_state_type dpm_state)
865 struct radeon_ps *ps;
867 bool single_display = radeon_dpm_single_display(rdev);
869 /* certain older asics have a separare 3D performance state,
870 * so try that first if the user selected performance
872 if (dpm_state == POWER_STATE_TYPE_PERFORMANCE)
873 dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF;
874 /* balanced states don't exist at the moment */
875 if (dpm_state == POWER_STATE_TYPE_BALANCED)
876 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
879 /* Pick the best power state based on current conditions */
880 for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
881 ps = &rdev->pm.dpm.ps[i];
882 ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK;
885 case POWER_STATE_TYPE_BATTERY:
886 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) {
887 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
894 case POWER_STATE_TYPE_BALANCED:
895 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BALANCED) {
896 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
903 case POWER_STATE_TYPE_PERFORMANCE:
904 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) {
905 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
912 /* internal states */
913 case POWER_STATE_TYPE_INTERNAL_UVD:
914 if (rdev->pm.dpm.uvd_ps)
915 return rdev->pm.dpm.uvd_ps;
918 case POWER_STATE_TYPE_INTERNAL_UVD_SD:
919 if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
922 case POWER_STATE_TYPE_INTERNAL_UVD_HD:
923 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
926 case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
927 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
930 case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
931 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
934 case POWER_STATE_TYPE_INTERNAL_BOOT:
935 return rdev->pm.dpm.boot_ps;
936 case POWER_STATE_TYPE_INTERNAL_THERMAL:
937 if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
940 case POWER_STATE_TYPE_INTERNAL_ACPI:
941 if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI)
944 case POWER_STATE_TYPE_INTERNAL_ULV:
945 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV)
948 case POWER_STATE_TYPE_INTERNAL_3DPERF:
949 if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
956 /* use a fallback state if we didn't match */
958 case POWER_STATE_TYPE_INTERNAL_UVD_SD:
959 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
961 case POWER_STATE_TYPE_INTERNAL_UVD_HD:
962 case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
963 case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
964 if (rdev->pm.dpm.uvd_ps) {
965 return rdev->pm.dpm.uvd_ps;
967 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
970 case POWER_STATE_TYPE_INTERNAL_THERMAL:
971 dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI;
973 case POWER_STATE_TYPE_INTERNAL_ACPI:
974 dpm_state = POWER_STATE_TYPE_BATTERY;
976 case POWER_STATE_TYPE_BATTERY:
977 case POWER_STATE_TYPE_BALANCED:
978 case POWER_STATE_TYPE_INTERNAL_3DPERF:
979 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
988 static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
991 struct radeon_ps *ps;
992 enum radeon_pm_state_type dpm_state;
994 bool single_display = radeon_dpm_single_display(rdev);
996 /* if dpm init failed */
997 if (!rdev->pm.dpm_enabled)
1000 if (rdev->pm.dpm.user_state != rdev->pm.dpm.state) {
1001 /* add other state override checks here */
1002 if ((!rdev->pm.dpm.thermal_active) &&
1003 (!rdev->pm.dpm.uvd_active))
1004 rdev->pm.dpm.state = rdev->pm.dpm.user_state;
1006 dpm_state = rdev->pm.dpm.state;
1008 ps = radeon_dpm_pick_power_state(rdev, dpm_state);
1010 rdev->pm.dpm.requested_ps = ps;
1014 /* no need to reprogram if nothing changed unless we are on BTC+ */
1015 if (rdev->pm.dpm.current_ps == rdev->pm.dpm.requested_ps) {
1016 /* vce just modifies an existing state so force a change */
1017 if (ps->vce_active != rdev->pm.dpm.vce_active)
1019 /* user has made a display change (such as timing) */
1020 if (rdev->pm.dpm.single_display != single_display)
1022 if ((rdev->family < CHIP_BARTS) || (rdev->flags & RADEON_IS_IGP)) {
1023 /* for pre-BTC and APUs if the num crtcs changed but state is the same,
1024 * all we need to do is update the display configuration.
1026 if (rdev->pm.dpm.new_active_crtcs != rdev->pm.dpm.current_active_crtcs) {
1027 /* update display watermarks based on new power state */
1028 radeon_bandwidth_update(rdev);
1029 /* update displays */
1030 radeon_dpm_display_configuration_changed(rdev);
1031 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
1032 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
1036 /* for BTC+ if the num crtcs hasn't changed and state is the same,
1037 * nothing to do, if the num crtcs is > 1 and state is the same,
1038 * update display configuration.
1040 if (rdev->pm.dpm.new_active_crtcs ==
1041 rdev->pm.dpm.current_active_crtcs) {
1044 if ((rdev->pm.dpm.current_active_crtc_count > 1) &&
1045 (rdev->pm.dpm.new_active_crtc_count > 1)) {
1046 /* update display watermarks based on new power state */
1047 radeon_bandwidth_update(rdev);
1048 /* update displays */
1049 radeon_dpm_display_configuration_changed(rdev);
1050 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
1051 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
1059 if (radeon_dpm == 1) {
1060 printk("switching from power state:\n");
1061 radeon_dpm_print_power_state(rdev, rdev->pm.dpm.current_ps);
1062 printk("switching to power state:\n");
1063 radeon_dpm_print_power_state(rdev, rdev->pm.dpm.requested_ps);
1066 down_write(&rdev->pm.mclk_lock);
1067 mutex_lock(&rdev->ring_lock);
1069 /* update whether vce is active */
1070 ps->vce_active = rdev->pm.dpm.vce_active;
1072 ret = radeon_dpm_pre_set_power_state(rdev);
1076 /* update display watermarks based on new power state */
1077 radeon_bandwidth_update(rdev);
1078 /* update displays */
1079 radeon_dpm_display_configuration_changed(rdev);
1081 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs;
1082 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count;
1083 rdev->pm.dpm.single_display = single_display;
1085 /* wait for the rings to drain */
1086 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1087 struct radeon_ring *ring = &rdev->ring[i];
1089 radeon_fence_wait_empty(rdev, i);
1092 /* program the new power state */
1093 radeon_dpm_set_power_state(rdev);
1095 /* update current power state */
1096 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps;
1098 radeon_dpm_post_set_power_state(rdev);
1100 if (rdev->asic->dpm.force_performance_level) {
1101 if (rdev->pm.dpm.thermal_active) {
1102 enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level;
1103 /* force low perf level for thermal */
1104 radeon_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_LOW);
1105 /* save the user's level */
1106 rdev->pm.dpm.forced_level = level;
1108 /* otherwise, user selected level */
1109 radeon_dpm_force_performance_level(rdev, rdev->pm.dpm.forced_level);
1114 mutex_unlock(&rdev->ring_lock);
1115 up_write(&rdev->pm.mclk_lock);
1118 void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable)
1120 enum radeon_pm_state_type dpm_state;
1122 if (rdev->asic->dpm.powergate_uvd) {
1123 mutex_lock(&rdev->pm.mutex);
1124 /* don't powergate anything if we
1125 have active but pause streams */
1126 enable |= rdev->pm.dpm.sd > 0;
1127 enable |= rdev->pm.dpm.hd > 0;
1128 /* enable/disable UVD */
1129 radeon_dpm_powergate_uvd(rdev, !enable);
1130 mutex_unlock(&rdev->pm.mutex);
1133 mutex_lock(&rdev->pm.mutex);
1134 rdev->pm.dpm.uvd_active = true;
1135 /* disable this for now */
1137 if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0))
1138 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD;
1139 else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0))
1140 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
1141 else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 1))
1142 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
1143 else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2))
1144 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2;
1147 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD;
1148 rdev->pm.dpm.state = dpm_state;
1149 mutex_unlock(&rdev->pm.mutex);
1151 mutex_lock(&rdev->pm.mutex);
1152 rdev->pm.dpm.uvd_active = false;
1153 mutex_unlock(&rdev->pm.mutex);
1156 radeon_pm_compute_clocks(rdev);
1160 void radeon_dpm_enable_vce(struct radeon_device *rdev, bool enable)
1163 mutex_lock(&rdev->pm.mutex);
1164 rdev->pm.dpm.vce_active = true;
1165 /* XXX select vce level based on ring/task */
1166 rdev->pm.dpm.vce_level = RADEON_VCE_LEVEL_AC_ALL;
1167 mutex_unlock(&rdev->pm.mutex);
1169 mutex_lock(&rdev->pm.mutex);
1170 rdev->pm.dpm.vce_active = false;
1171 mutex_unlock(&rdev->pm.mutex);
1174 radeon_pm_compute_clocks(rdev);
1177 static void radeon_pm_suspend_old(struct radeon_device *rdev)
1179 mutex_lock(&rdev->pm.mutex);
1180 if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
1181 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE)
1182 rdev->pm.dynpm_state = DYNPM_STATE_SUSPENDED;
1184 mutex_unlock(&rdev->pm.mutex);
1186 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
1189 static void radeon_pm_suspend_dpm(struct radeon_device *rdev)
1191 mutex_lock(&rdev->pm.mutex);
1193 radeon_dpm_disable(rdev);
1194 /* reset the power state */
1195 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps;
1196 rdev->pm.dpm_enabled = false;
1197 mutex_unlock(&rdev->pm.mutex);
1200 void radeon_pm_suspend(struct radeon_device *rdev)
1202 if (rdev->pm.pm_method == PM_METHOD_DPM)
1203 radeon_pm_suspend_dpm(rdev);
1205 radeon_pm_suspend_old(rdev);
1208 static void radeon_pm_resume_old(struct radeon_device *rdev)
1210 /* set up the default clocks if the MC ucode is loaded */
1211 if ((rdev->family >= CHIP_BARTS) &&
1212 (rdev->family <= CHIP_CAYMAN) &&
1214 if (rdev->pm.default_vddc)
1215 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1216 SET_VOLTAGE_TYPE_ASIC_VDDC);
1217 if (rdev->pm.default_vddci)
1218 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1219 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1220 if (rdev->pm.default_sclk)
1221 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1222 if (rdev->pm.default_mclk)
1223 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1225 /* asic init will reset the default power state */
1226 mutex_lock(&rdev->pm.mutex);
1227 rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
1228 rdev->pm.current_clock_mode_index = 0;
1229 rdev->pm.current_sclk = rdev->pm.default_sclk;
1230 rdev->pm.current_mclk = rdev->pm.default_mclk;
1231 if (rdev->pm.power_state) {
1232 rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
1233 rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci;
1235 if (rdev->pm.pm_method == PM_METHOD_DYNPM
1236 && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) {
1237 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
1238 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1239 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1241 mutex_unlock(&rdev->pm.mutex);
1242 radeon_pm_compute_clocks(rdev);
1245 static void radeon_pm_resume_dpm(struct radeon_device *rdev)
1249 /* asic init will reset to the boot state */
1250 mutex_lock(&rdev->pm.mutex);
1251 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps;
1252 radeon_dpm_setup_asic(rdev);
1253 ret = radeon_dpm_enable(rdev);
1254 mutex_unlock(&rdev->pm.mutex);
1256 goto dpm_resume_fail;
1257 rdev->pm.dpm_enabled = true;
1261 DRM_ERROR("radeon: dpm resume failed\n");
1262 if ((rdev->family >= CHIP_BARTS) &&
1263 (rdev->family <= CHIP_CAYMAN) &&
1265 if (rdev->pm.default_vddc)
1266 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1267 SET_VOLTAGE_TYPE_ASIC_VDDC);
1268 if (rdev->pm.default_vddci)
1269 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1270 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1271 if (rdev->pm.default_sclk)
1272 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1273 if (rdev->pm.default_mclk)
1274 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1278 void radeon_pm_resume(struct radeon_device *rdev)
1280 if (rdev->pm.pm_method == PM_METHOD_DPM)
1281 radeon_pm_resume_dpm(rdev);
1283 radeon_pm_resume_old(rdev);
1286 static int radeon_pm_init_old(struct radeon_device *rdev)
1290 rdev->pm.profile = PM_PROFILE_DEFAULT;
1291 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
1292 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
1293 rdev->pm.dynpm_can_upclock = true;
1294 rdev->pm.dynpm_can_downclock = true;
1295 rdev->pm.default_sclk = rdev->clock.default_sclk;
1296 rdev->pm.default_mclk = rdev->clock.default_mclk;
1297 rdev->pm.current_sclk = rdev->clock.default_sclk;
1298 rdev->pm.current_mclk = rdev->clock.default_mclk;
1299 rdev->pm.int_thermal_type = THERMAL_TYPE_NONE;
1302 if (rdev->is_atom_bios)
1303 radeon_atombios_get_power_modes(rdev);
1305 radeon_combios_get_power_modes(rdev);
1306 radeon_pm_print_states(rdev);
1307 radeon_pm_init_profile(rdev);
1308 /* set up the default clocks if the MC ucode is loaded */
1309 if ((rdev->family >= CHIP_BARTS) &&
1310 (rdev->family <= CHIP_CAYMAN) &&
1312 if (rdev->pm.default_vddc)
1313 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1314 SET_VOLTAGE_TYPE_ASIC_VDDC);
1315 if (rdev->pm.default_vddci)
1316 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1317 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1318 if (rdev->pm.default_sclk)
1319 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1320 if (rdev->pm.default_mclk)
1321 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1325 /* set up the internal thermal sensor if applicable */
1326 ret = radeon_hwmon_init(rdev);
1330 INIT_DELAYED_WORK(&rdev->pm.dynpm_idle_work, radeon_dynpm_idle_work_handler);
1332 if (rdev->pm.num_power_states > 1) {
1333 if (radeon_debugfs_pm_init(rdev)) {
1334 DRM_ERROR("Failed to register debugfs file for PM!\n");
1337 DRM_INFO("radeon: power management initialized\n");
1343 static void radeon_dpm_print_power_states(struct radeon_device *rdev)
1347 for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
1348 printk("== power state %d ==\n", i);
1349 radeon_dpm_print_power_state(rdev, &rdev->pm.dpm.ps[i]);
1353 static int radeon_pm_init_dpm(struct radeon_device *rdev)
1357 /* default to balanced state */
1358 rdev->pm.dpm.state = POWER_STATE_TYPE_BALANCED;
1359 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED;
1360 rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO;
1361 rdev->pm.default_sclk = rdev->clock.default_sclk;
1362 rdev->pm.default_mclk = rdev->clock.default_mclk;
1363 rdev->pm.current_sclk = rdev->clock.default_sclk;
1364 rdev->pm.current_mclk = rdev->clock.default_mclk;
1365 rdev->pm.int_thermal_type = THERMAL_TYPE_NONE;
1367 if (rdev->bios && rdev->is_atom_bios)
1368 radeon_atombios_get_power_modes(rdev);
1372 /* set up the internal thermal sensor if applicable */
1373 ret = radeon_hwmon_init(rdev);
1377 INIT_WORK(&rdev->pm.dpm.thermal.work, radeon_dpm_thermal_work_handler);
1378 mutex_lock(&rdev->pm.mutex);
1379 radeon_dpm_init(rdev);
1380 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps;
1381 if (radeon_dpm == 1)
1382 radeon_dpm_print_power_states(rdev);
1383 radeon_dpm_setup_asic(rdev);
1384 ret = radeon_dpm_enable(rdev);
1385 mutex_unlock(&rdev->pm.mutex);
1388 rdev->pm.dpm_enabled = true;
1390 if (radeon_debugfs_pm_init(rdev)) {
1391 DRM_ERROR("Failed to register debugfs file for dpm!\n");
1394 DRM_INFO("radeon: dpm initialized\n");
1399 rdev->pm.dpm_enabled = false;
1400 if ((rdev->family >= CHIP_BARTS) &&
1401 (rdev->family <= CHIP_CAYMAN) &&
1403 if (rdev->pm.default_vddc)
1404 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
1405 SET_VOLTAGE_TYPE_ASIC_VDDC);
1406 if (rdev->pm.default_vddci)
1407 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci,
1408 SET_VOLTAGE_TYPE_ASIC_VDDCI);
1409 if (rdev->pm.default_sclk)
1410 radeon_set_engine_clock(rdev, rdev->pm.default_sclk);
1411 if (rdev->pm.default_mclk)
1412 radeon_set_memory_clock(rdev, rdev->pm.default_mclk);
1414 DRM_ERROR("radeon: dpm initialization failed\n");
1418 struct radeon_dpm_quirk {
1425 /* cards with dpm stability problems */
1426 static struct radeon_dpm_quirk radeon_dpm_quirk_list[] = {
1427 /* TURKS - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386534 */
1428 { PCI_VENDOR_ID_ATI, 0x6759, 0x1682, 0x3195 },
1429 /* TURKS - https://bugzilla.kernel.org/show_bug.cgi?id=83731 */
1430 { PCI_VENDOR_ID_ATI, 0x6840, 0x1179, 0xfb81 },
1434 int radeon_pm_init(struct radeon_device *rdev)
1436 struct radeon_dpm_quirk *p = radeon_dpm_quirk_list;
1437 bool disable_dpm = false;
1439 /* Apply dpm quirks */
1440 while (p && p->chip_device != 0) {
1441 if (rdev->pdev->vendor == p->chip_vendor &&
1442 rdev->pdev->device == p->chip_device &&
1443 rdev->pdev->subsystem_vendor == p->subsys_vendor &&
1444 rdev->pdev->subsystem_device == p->subsys_device) {
1451 /* enable dpm on rv6xx+ */
1452 switch (rdev->family) {
1461 /* DPM requires the RLC, RV770+ dGPU requires SMC */
1463 rdev->pm.pm_method = PM_METHOD_PROFILE;
1464 else if ((rdev->family >= CHIP_RV770) &&
1465 (!(rdev->flags & RADEON_IS_IGP)) &&
1467 rdev->pm.pm_method = PM_METHOD_PROFILE;
1468 else if (radeon_dpm == 1)
1469 rdev->pm.pm_method = PM_METHOD_DPM;
1471 rdev->pm.pm_method = PM_METHOD_PROFILE;
1499 /* DPM requires the RLC, RV770+ dGPU requires SMC */
1501 rdev->pm.pm_method = PM_METHOD_PROFILE;
1502 else if ((rdev->family >= CHIP_RV770) &&
1503 (!(rdev->flags & RADEON_IS_IGP)) &&
1505 rdev->pm.pm_method = PM_METHOD_PROFILE;
1506 else if (disable_dpm && (radeon_dpm == -1))
1507 rdev->pm.pm_method = PM_METHOD_PROFILE;
1508 else if (radeon_dpm == 0)
1509 rdev->pm.pm_method = PM_METHOD_PROFILE;
1511 rdev->pm.pm_method = PM_METHOD_DPM;
1514 /* default to profile method */
1515 rdev->pm.pm_method = PM_METHOD_PROFILE;
1519 if (rdev->pm.pm_method == PM_METHOD_DPM)
1520 return radeon_pm_init_dpm(rdev);
1522 return radeon_pm_init_old(rdev);
1525 int radeon_pm_late_init(struct radeon_device *rdev)
1529 if (rdev->pm.pm_method == PM_METHOD_DPM) {
1530 if (rdev->pm.dpm_enabled) {
1531 if (!rdev->pm.sysfs_initialized) {
1532 ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
1534 DRM_ERROR("failed to create device file for dpm state\n");
1535 ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
1537 DRM_ERROR("failed to create device file for dpm state\n");
1538 /* XXX: these are noops for dpm but are here for backwards compat */
1539 ret = device_create_file(rdev->dev, &dev_attr_power_profile);
1541 DRM_ERROR("failed to create device file for power profile\n");
1542 ret = device_create_file(rdev->dev, &dev_attr_power_method);
1544 DRM_ERROR("failed to create device file for power method\n");
1545 rdev->pm.sysfs_initialized = true;
1548 mutex_lock(&rdev->pm.mutex);
1549 ret = radeon_dpm_late_enable(rdev);
1550 mutex_unlock(&rdev->pm.mutex);
1552 rdev->pm.dpm_enabled = false;
1553 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1555 /* set the dpm state for PX since there won't be
1556 * a modeset to call this.
1558 radeon_pm_compute_clocks(rdev);
1562 if ((rdev->pm.num_power_states > 1) &&
1563 (!rdev->pm.sysfs_initialized)) {
1564 /* where's the best place to put these? */
1565 ret = device_create_file(rdev->dev, &dev_attr_power_profile);
1567 DRM_ERROR("failed to create device file for power profile\n");
1568 ret = device_create_file(rdev->dev, &dev_attr_power_method);
1570 DRM_ERROR("failed to create device file for power method\n");
1572 rdev->pm.sysfs_initialized = true;
1578 static void radeon_pm_fini_old(struct radeon_device *rdev)
1580 if (rdev->pm.num_power_states > 1) {
1581 mutex_lock(&rdev->pm.mutex);
1582 if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
1583 rdev->pm.profile = PM_PROFILE_DEFAULT;
1584 radeon_pm_update_profile(rdev);
1585 radeon_pm_set_clocks(rdev);
1586 } else if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
1587 /* reset default clocks */
1588 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
1589 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
1590 radeon_pm_set_clocks(rdev);
1592 mutex_unlock(&rdev->pm.mutex);
1594 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
1596 device_remove_file(rdev->dev, &dev_attr_power_profile);
1597 device_remove_file(rdev->dev, &dev_attr_power_method);
1600 radeon_hwmon_fini(rdev);
1601 kfree(rdev->pm.power_state);
1604 static void radeon_pm_fini_dpm(struct radeon_device *rdev)
1606 if (rdev->pm.num_power_states > 1) {
1607 mutex_lock(&rdev->pm.mutex);
1608 radeon_dpm_disable(rdev);
1609 mutex_unlock(&rdev->pm.mutex);
1611 device_remove_file(rdev->dev, &dev_attr_power_dpm_state);
1612 device_remove_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
1613 /* XXX backwards compat */
1614 device_remove_file(rdev->dev, &dev_attr_power_profile);
1615 device_remove_file(rdev->dev, &dev_attr_power_method);
1617 radeon_dpm_fini(rdev);
1619 radeon_hwmon_fini(rdev);
1620 kfree(rdev->pm.power_state);
1623 void radeon_pm_fini(struct radeon_device *rdev)
1625 if (rdev->pm.pm_method == PM_METHOD_DPM)
1626 radeon_pm_fini_dpm(rdev);
1628 radeon_pm_fini_old(rdev);
1631 static void radeon_pm_compute_clocks_old(struct radeon_device *rdev)
1633 struct drm_device *ddev = rdev->ddev;
1634 struct drm_crtc *crtc;
1635 struct radeon_crtc *radeon_crtc;
1637 if (rdev->pm.num_power_states < 2)
1640 mutex_lock(&rdev->pm.mutex);
1642 rdev->pm.active_crtcs = 0;
1643 rdev->pm.active_crtc_count = 0;
1644 if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) {
1645 list_for_each_entry(crtc,
1646 &ddev->mode_config.crtc_list, head) {
1647 radeon_crtc = to_radeon_crtc(crtc);
1648 if (radeon_crtc->enabled) {
1649 rdev->pm.active_crtcs |= (1 << radeon_crtc->crtc_id);
1650 rdev->pm.active_crtc_count++;
1655 if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
1656 radeon_pm_update_profile(rdev);
1657 radeon_pm_set_clocks(rdev);
1658 } else if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
1659 if (rdev->pm.dynpm_state != DYNPM_STATE_DISABLED) {
1660 if (rdev->pm.active_crtc_count > 1) {
1661 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) {
1662 cancel_delayed_work(&rdev->pm.dynpm_idle_work);
1664 rdev->pm.dynpm_state = DYNPM_STATE_PAUSED;
1665 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
1666 radeon_pm_get_dynpm_state(rdev);
1667 radeon_pm_set_clocks(rdev);
1669 DRM_DEBUG_DRIVER("radeon: dynamic power management deactivated\n");
1671 } else if (rdev->pm.active_crtc_count == 1) {
1672 /* TODO: Increase clocks if needed for current mode */
1674 if (rdev->pm.dynpm_state == DYNPM_STATE_MINIMUM) {
1675 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
1676 rdev->pm.dynpm_planned_action = DYNPM_ACTION_UPCLOCK;
1677 radeon_pm_get_dynpm_state(rdev);
1678 radeon_pm_set_clocks(rdev);
1680 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1681 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1682 } else if (rdev->pm.dynpm_state == DYNPM_STATE_PAUSED) {
1683 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
1684 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1685 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1686 DRM_DEBUG_DRIVER("radeon: dynamic power management activated\n");
1688 } else { /* count == 0 */
1689 if (rdev->pm.dynpm_state != DYNPM_STATE_MINIMUM) {
1690 cancel_delayed_work(&rdev->pm.dynpm_idle_work);
1692 rdev->pm.dynpm_state = DYNPM_STATE_MINIMUM;
1693 rdev->pm.dynpm_planned_action = DYNPM_ACTION_MINIMUM;
1694 radeon_pm_get_dynpm_state(rdev);
1695 radeon_pm_set_clocks(rdev);
1701 mutex_unlock(&rdev->pm.mutex);
1704 static void radeon_pm_compute_clocks_dpm(struct radeon_device *rdev)
1706 struct drm_device *ddev = rdev->ddev;
1707 struct drm_crtc *crtc;
1708 struct radeon_crtc *radeon_crtc;
1710 if (!rdev->pm.dpm_enabled)
1713 mutex_lock(&rdev->pm.mutex);
1715 /* update active crtc counts */
1716 rdev->pm.dpm.new_active_crtcs = 0;
1717 rdev->pm.dpm.new_active_crtc_count = 0;
1718 if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) {
1719 list_for_each_entry(crtc,
1720 &ddev->mode_config.crtc_list, head) {
1721 radeon_crtc = to_radeon_crtc(crtc);
1722 if (crtc->enabled) {
1723 rdev->pm.dpm.new_active_crtcs |= (1 << radeon_crtc->crtc_id);
1724 rdev->pm.dpm.new_active_crtc_count++;
1729 /* update battery/ac status */
1730 if (power_supply_is_system_supplied() > 0)
1731 rdev->pm.dpm.ac_power = true;
1733 rdev->pm.dpm.ac_power = false;
1735 radeon_dpm_change_power_state_locked(rdev);
1737 mutex_unlock(&rdev->pm.mutex);
1741 void radeon_pm_compute_clocks(struct radeon_device *rdev)
1743 if (rdev->pm.pm_method == PM_METHOD_DPM)
1744 radeon_pm_compute_clocks_dpm(rdev);
1746 radeon_pm_compute_clocks_old(rdev);
1749 static bool radeon_pm_in_vbl(struct radeon_device *rdev)
1751 int crtc, vpos, hpos, vbl_status;
1754 /* Iterate over all active crtc's. All crtc's must be in vblank,
1755 * otherwise return in_vbl == false.
1757 for (crtc = 0; (crtc < rdev->num_crtc) && in_vbl; crtc++) {
1758 if (rdev->pm.active_crtcs & (1 << crtc)) {
1759 vbl_status = radeon_get_crtc_scanoutpos(rdev->ddev,
1761 USE_REAL_VBLANKSTART,
1762 &vpos, &hpos, NULL, NULL,
1763 &rdev->mode_info.crtcs[crtc]->base.hwmode);
1764 if ((vbl_status & DRM_SCANOUTPOS_VALID) &&
1765 !(vbl_status & DRM_SCANOUTPOS_IN_VBLANK))
1773 static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish)
1776 bool in_vbl = radeon_pm_in_vbl(rdev);
1778 if (in_vbl == false)
1779 DRM_DEBUG_DRIVER("not in vbl for pm change %08x at %s\n", stat_crtc,
1780 finish ? "exit" : "entry");
1784 static void radeon_dynpm_idle_work_handler(struct work_struct *work)
1786 struct radeon_device *rdev;
1788 rdev = container_of(work, struct radeon_device,
1789 pm.dynpm_idle_work.work);
1791 resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
1792 mutex_lock(&rdev->pm.mutex);
1793 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) {
1794 int not_processed = 0;
1797 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1798 struct radeon_ring *ring = &rdev->ring[i];
1801 not_processed += radeon_fence_count_emitted(rdev, i);
1802 if (not_processed >= 3)
1807 if (not_processed >= 3) { /* should upclock */
1808 if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_DOWNCLOCK) {
1809 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
1810 } else if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_NONE &&
1811 rdev->pm.dynpm_can_upclock) {
1812 rdev->pm.dynpm_planned_action =
1813 DYNPM_ACTION_UPCLOCK;
1814 rdev->pm.dynpm_action_timeout = jiffies +
1815 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS);
1817 } else if (not_processed == 0) { /* should downclock */
1818 if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_UPCLOCK) {
1819 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
1820 } else if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_NONE &&
1821 rdev->pm.dynpm_can_downclock) {
1822 rdev->pm.dynpm_planned_action =
1823 DYNPM_ACTION_DOWNCLOCK;
1824 rdev->pm.dynpm_action_timeout = jiffies +
1825 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS);
1829 /* Note, radeon_pm_set_clocks is called with static_switch set
1830 * to false since we want to wait for vbl to avoid flicker.
1832 if (rdev->pm.dynpm_planned_action != DYNPM_ACTION_NONE &&
1833 jiffies > rdev->pm.dynpm_action_timeout) {
1834 radeon_pm_get_dynpm_state(rdev);
1835 radeon_pm_set_clocks(rdev);
1838 schedule_delayed_work(&rdev->pm.dynpm_idle_work,
1839 msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
1841 mutex_unlock(&rdev->pm.mutex);
1842 ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
1848 #if defined(CONFIG_DEBUG_FS)
1850 static int radeon_debugfs_pm_info(struct seq_file *m, void *data)
1852 struct drm_info_node *node = (struct drm_info_node *) m->private;
1853 struct drm_device *dev = node->minor->dev;
1854 struct radeon_device *rdev = dev->dev_private;
1855 struct drm_device *ddev = rdev->ddev;
1857 if ((rdev->flags & RADEON_IS_PX) &&
1858 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) {
1859 seq_printf(m, "PX asic powered off\n");
1860 } else if (rdev->pm.dpm_enabled) {
1861 mutex_lock(&rdev->pm.mutex);
1862 if (rdev->asic->dpm.debugfs_print_current_performance_level)
1863 radeon_dpm_debugfs_print_current_performance_level(rdev, m);
1865 seq_printf(m, "Debugfs support not implemented for this asic\n");
1866 mutex_unlock(&rdev->pm.mutex);
1868 seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk);
1869 /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */
1870 if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP))
1871 seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk);
1873 seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev));
1874 seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk);
1875 if (rdev->asic->pm.get_memory_clock)
1876 seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev));
1877 if (rdev->pm.current_vddc)
1878 seq_printf(m, "voltage: %u mV\n", rdev->pm.current_vddc);
1879 if (rdev->asic->pm.get_pcie_lanes)
1880 seq_printf(m, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev));
1886 static struct drm_info_list radeon_pm_info_list[] = {
1887 {"radeon_pm_info", radeon_debugfs_pm_info, 0, NULL},
1891 static int radeon_debugfs_pm_init(struct radeon_device *rdev)
1893 #if defined(CONFIG_DEBUG_FS)
1894 return radeon_debugfs_add_files(rdev, radeon_pm_info_list, ARRAY_SIZE(radeon_pm_info_list));