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 mutex_lock(&rdev
->ddev
->struct_mutex
);
257 down_write(&rdev
->pm
.mclk_lock
);
258 mutex_lock(&rdev
->ring_lock
);
260 /* wait for the rings to drain */
261 for (i
= 0; i
< RADEON_NUM_RINGS
; i
++) {
262 struct radeon_ring
*ring
= &rdev
->ring
[i
];
266 r
= radeon_fence_wait_empty(rdev
, i
);
268 /* needs a GPU reset dont reset here */
269 mutex_unlock(&rdev
->ring_lock
);
270 up_write(&rdev
->pm
.mclk_lock
);
271 mutex_unlock(&rdev
->ddev
->struct_mutex
);
276 radeon_unmap_vram_bos(rdev
);
278 if (rdev
->irq
.installed
) {
279 for (i
= 0; i
< rdev
->num_crtc
; i
++) {
280 if (rdev
->pm
.active_crtcs
& (1 << i
)) {
281 rdev
->pm
.req_vblank
|= (1 << i
);
282 drm_vblank_get(rdev
->ddev
, i
);
287 radeon_set_power_state(rdev
);
289 if (rdev
->irq
.installed
) {
290 for (i
= 0; i
< rdev
->num_crtc
; i
++) {
291 if (rdev
->pm
.req_vblank
& (1 << i
)) {
292 rdev
->pm
.req_vblank
&= ~(1 << i
);
293 drm_vblank_put(rdev
->ddev
, i
);
298 /* update display watermarks based on new power state */
299 radeon_update_bandwidth_info(rdev
);
300 if (rdev
->pm
.active_crtc_count
)
301 radeon_bandwidth_update(rdev
);
303 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_NONE
;
305 mutex_unlock(&rdev
->ring_lock
);
306 up_write(&rdev
->pm
.mclk_lock
);
307 mutex_unlock(&rdev
->ddev
->struct_mutex
);
310 static void radeon_pm_print_states(struct radeon_device
*rdev
)
313 struct radeon_power_state
*power_state
;
314 struct radeon_pm_clock_info
*clock_info
;
316 DRM_DEBUG_DRIVER("%d Power State(s)\n", rdev
->pm
.num_power_states
);
317 for (i
= 0; i
< rdev
->pm
.num_power_states
; i
++) {
318 power_state
= &rdev
->pm
.power_state
[i
];
319 DRM_DEBUG_DRIVER("State %d: %s\n", i
,
320 radeon_pm_state_type_name
[power_state
->type
]);
321 if (i
== rdev
->pm
.default_power_state_index
)
322 DRM_DEBUG_DRIVER("\tDefault");
323 if ((rdev
->flags
& RADEON_IS_PCIE
) && !(rdev
->flags
& RADEON_IS_IGP
))
324 DRM_DEBUG_DRIVER("\t%d PCIE Lanes\n", power_state
->pcie_lanes
);
325 if (power_state
->flags
& RADEON_PM_STATE_SINGLE_DISPLAY_ONLY
)
326 DRM_DEBUG_DRIVER("\tSingle display only\n");
327 DRM_DEBUG_DRIVER("\t%d Clock Mode(s)\n", power_state
->num_clock_modes
);
328 for (j
= 0; j
< power_state
->num_clock_modes
; j
++) {
329 clock_info
= &(power_state
->clock_info
[j
]);
330 if (rdev
->flags
& RADEON_IS_IGP
)
331 DRM_DEBUG_DRIVER("\t\t%d e: %d\n",
333 clock_info
->sclk
* 10);
335 DRM_DEBUG_DRIVER("\t\t%d e: %d\tm: %d\tv: %d\n",
337 clock_info
->sclk
* 10,
338 clock_info
->mclk
* 10,
339 clock_info
->voltage
.voltage
);
344 static ssize_t
radeon_get_pm_profile(struct device
*dev
,
345 struct device_attribute
*attr
,
348 struct drm_device
*ddev
= dev_get_drvdata(dev
);
349 struct radeon_device
*rdev
= ddev
->dev_private
;
350 int cp
= rdev
->pm
.profile
;
352 return snprintf(buf
, PAGE_SIZE
, "%s\n",
353 (cp
== PM_PROFILE_AUTO
) ? "auto" :
354 (cp
== PM_PROFILE_LOW
) ? "low" :
355 (cp
== PM_PROFILE_MID
) ? "mid" :
356 (cp
== PM_PROFILE_HIGH
) ? "high" : "default");
359 static ssize_t
radeon_set_pm_profile(struct device
*dev
,
360 struct device_attribute
*attr
,
364 struct drm_device
*ddev
= dev_get_drvdata(dev
);
365 struct radeon_device
*rdev
= ddev
->dev_private
;
367 /* Can't set profile when the card is off */
368 if ((rdev
->flags
& RADEON_IS_PX
) &&
369 (ddev
->switch_power_state
!= DRM_SWITCH_POWER_ON
))
372 mutex_lock(&rdev
->pm
.mutex
);
373 if (rdev
->pm
.pm_method
== PM_METHOD_PROFILE
) {
374 if (strncmp("default", buf
, strlen("default")) == 0)
375 rdev
->pm
.profile
= PM_PROFILE_DEFAULT
;
376 else if (strncmp("auto", buf
, strlen("auto")) == 0)
377 rdev
->pm
.profile
= PM_PROFILE_AUTO
;
378 else if (strncmp("low", buf
, strlen("low")) == 0)
379 rdev
->pm
.profile
= PM_PROFILE_LOW
;
380 else if (strncmp("mid", buf
, strlen("mid")) == 0)
381 rdev
->pm
.profile
= PM_PROFILE_MID
;
382 else if (strncmp("high", buf
, strlen("high")) == 0)
383 rdev
->pm
.profile
= PM_PROFILE_HIGH
;
388 radeon_pm_update_profile(rdev
);
389 radeon_pm_set_clocks(rdev
);
394 mutex_unlock(&rdev
->pm
.mutex
);
399 static ssize_t
radeon_get_pm_method(struct device
*dev
,
400 struct device_attribute
*attr
,
403 struct drm_device
*ddev
= dev_get_drvdata(dev
);
404 struct radeon_device
*rdev
= ddev
->dev_private
;
405 int pm
= rdev
->pm
.pm_method
;
407 return snprintf(buf
, PAGE_SIZE
, "%s\n",
408 (pm
== PM_METHOD_DYNPM
) ? "dynpm" :
409 (pm
== PM_METHOD_PROFILE
) ? "profile" : "dpm");
412 static ssize_t
radeon_set_pm_method(struct device
*dev
,
413 struct device_attribute
*attr
,
417 struct drm_device
*ddev
= dev_get_drvdata(dev
);
418 struct radeon_device
*rdev
= ddev
->dev_private
;
420 /* Can't set method when the card is off */
421 if ((rdev
->flags
& RADEON_IS_PX
) &&
422 (ddev
->switch_power_state
!= DRM_SWITCH_POWER_ON
)) {
427 /* we don't support the legacy modes with dpm */
428 if (rdev
->pm
.pm_method
== PM_METHOD_DPM
) {
433 if (strncmp("dynpm", buf
, strlen("dynpm")) == 0) {
434 mutex_lock(&rdev
->pm
.mutex
);
435 rdev
->pm
.pm_method
= PM_METHOD_DYNPM
;
436 rdev
->pm
.dynpm_state
= DYNPM_STATE_PAUSED
;
437 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_DEFAULT
;
438 mutex_unlock(&rdev
->pm
.mutex
);
439 } else if (strncmp("profile", buf
, strlen("profile")) == 0) {
440 mutex_lock(&rdev
->pm
.mutex
);
442 rdev
->pm
.dynpm_state
= DYNPM_STATE_DISABLED
;
443 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_NONE
;
444 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
445 mutex_unlock(&rdev
->pm
.mutex
);
446 cancel_delayed_work_sync(&rdev
->pm
.dynpm_idle_work
);
451 radeon_pm_compute_clocks(rdev
);
456 static ssize_t
radeon_get_dpm_state(struct device
*dev
,
457 struct device_attribute
*attr
,
460 struct drm_device
*ddev
= dev_get_drvdata(dev
);
461 struct radeon_device
*rdev
= ddev
->dev_private
;
462 enum radeon_pm_state_type pm
= rdev
->pm
.dpm
.user_state
;
464 return snprintf(buf
, PAGE_SIZE
, "%s\n",
465 (pm
== POWER_STATE_TYPE_BATTERY
) ? "battery" :
466 (pm
== POWER_STATE_TYPE_BALANCED
) ? "balanced" : "performance");
469 static ssize_t
radeon_set_dpm_state(struct device
*dev
,
470 struct device_attribute
*attr
,
474 struct drm_device
*ddev
= dev_get_drvdata(dev
);
475 struct radeon_device
*rdev
= ddev
->dev_private
;
477 mutex_lock(&rdev
->pm
.mutex
);
478 if (strncmp("battery", buf
, strlen("battery")) == 0)
479 rdev
->pm
.dpm
.user_state
= POWER_STATE_TYPE_BATTERY
;
480 else if (strncmp("balanced", buf
, strlen("balanced")) == 0)
481 rdev
->pm
.dpm
.user_state
= POWER_STATE_TYPE_BALANCED
;
482 else if (strncmp("performance", buf
, strlen("performance")) == 0)
483 rdev
->pm
.dpm
.user_state
= POWER_STATE_TYPE_PERFORMANCE
;
485 mutex_unlock(&rdev
->pm
.mutex
);
489 mutex_unlock(&rdev
->pm
.mutex
);
491 /* Can't set dpm state when the card is off */
492 if (!(rdev
->flags
& RADEON_IS_PX
) ||
493 (ddev
->switch_power_state
== DRM_SWITCH_POWER_ON
))
494 radeon_pm_compute_clocks(rdev
);
500 static ssize_t
radeon_get_dpm_forced_performance_level(struct device
*dev
,
501 struct device_attribute
*attr
,
504 struct drm_device
*ddev
= dev_get_drvdata(dev
);
505 struct radeon_device
*rdev
= ddev
->dev_private
;
506 enum radeon_dpm_forced_level level
= rdev
->pm
.dpm
.forced_level
;
508 if ((rdev
->flags
& RADEON_IS_PX
) &&
509 (ddev
->switch_power_state
!= DRM_SWITCH_POWER_ON
))
510 return snprintf(buf
, PAGE_SIZE
, "off\n");
512 return snprintf(buf
, PAGE_SIZE
, "%s\n",
513 (level
== RADEON_DPM_FORCED_LEVEL_AUTO
) ? "auto" :
514 (level
== RADEON_DPM_FORCED_LEVEL_LOW
) ? "low" : "high");
517 static ssize_t
radeon_set_dpm_forced_performance_level(struct device
*dev
,
518 struct device_attribute
*attr
,
522 struct drm_device
*ddev
= dev_get_drvdata(dev
);
523 struct radeon_device
*rdev
= ddev
->dev_private
;
524 enum radeon_dpm_forced_level level
;
527 /* Can't force performance level when the card is off */
528 if ((rdev
->flags
& RADEON_IS_PX
) &&
529 (ddev
->switch_power_state
!= DRM_SWITCH_POWER_ON
))
532 mutex_lock(&rdev
->pm
.mutex
);
533 if (strncmp("low", buf
, strlen("low")) == 0) {
534 level
= RADEON_DPM_FORCED_LEVEL_LOW
;
535 } else if (strncmp("high", buf
, strlen("high")) == 0) {
536 level
= RADEON_DPM_FORCED_LEVEL_HIGH
;
537 } else if (strncmp("auto", buf
, strlen("auto")) == 0) {
538 level
= RADEON_DPM_FORCED_LEVEL_AUTO
;
543 if (rdev
->asic
->dpm
.force_performance_level
) {
544 if (rdev
->pm
.dpm
.thermal_active
) {
548 ret
= radeon_dpm_force_performance_level(rdev
, level
);
553 mutex_unlock(&rdev
->pm
.mutex
);
558 static ssize_t
radeon_hwmon_get_pwm1_enable(struct device
*dev
,
559 struct device_attribute
*attr
,
562 struct radeon_device
*rdev
= dev_get_drvdata(dev
);
565 if (rdev
->asic
->dpm
.fan_ctrl_get_mode
)
566 pwm_mode
= rdev
->asic
->dpm
.fan_ctrl_get_mode(rdev
);
568 /* never 0 (full-speed), fuse or smc-controlled always */
569 return sprintf(buf
, "%i\n", pwm_mode
== FDO_PWM_MODE_STATIC
? 1 : 2);
572 static ssize_t
radeon_hwmon_set_pwm1_enable(struct device
*dev
,
573 struct device_attribute
*attr
,
577 struct radeon_device
*rdev
= dev_get_drvdata(dev
);
581 if(!rdev
->asic
->dpm
.fan_ctrl_set_mode
)
584 err
= kstrtoint(buf
, 10, &value
);
589 case 1: /* manual, percent-based */
590 rdev
->asic
->dpm
.fan_ctrl_set_mode(rdev
, FDO_PWM_MODE_STATIC
);
592 default: /* disable */
593 rdev
->asic
->dpm
.fan_ctrl_set_mode(rdev
, 0);
600 static ssize_t
radeon_hwmon_get_pwm1_min(struct device
*dev
,
601 struct device_attribute
*attr
,
604 return sprintf(buf
, "%i\n", 0);
607 static ssize_t
radeon_hwmon_get_pwm1_max(struct device
*dev
,
608 struct device_attribute
*attr
,
611 return sprintf(buf
, "%i\n", 255);
614 static ssize_t
radeon_hwmon_set_pwm1(struct device
*dev
,
615 struct device_attribute
*attr
,
616 const char *buf
, size_t count
)
618 struct radeon_device
*rdev
= dev_get_drvdata(dev
);
622 err
= kstrtou32(buf
, 10, &value
);
626 value
= (value
* 100) / 255;
628 err
= rdev
->asic
->dpm
.set_fan_speed_percent(rdev
, value
);
635 static ssize_t
radeon_hwmon_get_pwm1(struct device
*dev
,
636 struct device_attribute
*attr
,
639 struct radeon_device
*rdev
= dev_get_drvdata(dev
);
643 err
= rdev
->asic
->dpm
.get_fan_speed_percent(rdev
, &speed
);
647 speed
= (speed
* 255) / 100;
649 return sprintf(buf
, "%i\n", speed
);
652 static DEVICE_ATTR(power_profile
, S_IRUGO
| S_IWUSR
, radeon_get_pm_profile
, radeon_set_pm_profile
);
653 static DEVICE_ATTR(power_method
, S_IRUGO
| S_IWUSR
, radeon_get_pm_method
, radeon_set_pm_method
);
654 static DEVICE_ATTR(power_dpm_state
, S_IRUGO
| S_IWUSR
, radeon_get_dpm_state
, radeon_set_dpm_state
);
655 static DEVICE_ATTR(power_dpm_force_performance_level
, S_IRUGO
| S_IWUSR
,
656 radeon_get_dpm_forced_performance_level
,
657 radeon_set_dpm_forced_performance_level
);
659 static ssize_t
radeon_hwmon_show_temp(struct device
*dev
,
660 struct device_attribute
*attr
,
663 struct radeon_device
*rdev
= dev_get_drvdata(dev
);
664 struct drm_device
*ddev
= rdev
->ddev
;
667 /* Can't get temperature when the card is off */
668 if ((rdev
->flags
& RADEON_IS_PX
) &&
669 (ddev
->switch_power_state
!= DRM_SWITCH_POWER_ON
))
672 if (rdev
->asic
->pm
.get_temperature
)
673 temp
= radeon_get_temperature(rdev
);
677 return snprintf(buf
, PAGE_SIZE
, "%d\n", temp
);
680 static ssize_t
radeon_hwmon_show_temp_thresh(struct device
*dev
,
681 struct device_attribute
*attr
,
684 struct radeon_device
*rdev
= dev_get_drvdata(dev
);
685 int hyst
= to_sensor_dev_attr(attr
)->index
;
689 temp
= rdev
->pm
.dpm
.thermal
.min_temp
;
691 temp
= rdev
->pm
.dpm
.thermal
.max_temp
;
693 return snprintf(buf
, PAGE_SIZE
, "%d\n", temp
);
696 static SENSOR_DEVICE_ATTR(temp1_input
, S_IRUGO
, radeon_hwmon_show_temp
, NULL
, 0);
697 static SENSOR_DEVICE_ATTR(temp1_crit
, S_IRUGO
, radeon_hwmon_show_temp_thresh
, NULL
, 0);
698 static SENSOR_DEVICE_ATTR(temp1_crit_hyst
, S_IRUGO
, radeon_hwmon_show_temp_thresh
, NULL
, 1);
699 static SENSOR_DEVICE_ATTR(pwm1
, S_IRUGO
| S_IWUSR
, radeon_hwmon_get_pwm1
, radeon_hwmon_set_pwm1
, 0);
700 static SENSOR_DEVICE_ATTR(pwm1_enable
, S_IRUGO
| S_IWUSR
, radeon_hwmon_get_pwm1_enable
, radeon_hwmon_set_pwm1_enable
, 0);
701 static SENSOR_DEVICE_ATTR(pwm1_min
, S_IRUGO
, radeon_hwmon_get_pwm1_min
, NULL
, 0);
702 static SENSOR_DEVICE_ATTR(pwm1_max
, S_IRUGO
, radeon_hwmon_get_pwm1_max
, NULL
, 0);
705 static struct attribute
*hwmon_attributes
[] = {
706 &sensor_dev_attr_temp1_input
.dev_attr
.attr
,
707 &sensor_dev_attr_temp1_crit
.dev_attr
.attr
,
708 &sensor_dev_attr_temp1_crit_hyst
.dev_attr
.attr
,
709 &sensor_dev_attr_pwm1
.dev_attr
.attr
,
710 &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
,
711 &sensor_dev_attr_pwm1_min
.dev_attr
.attr
,
712 &sensor_dev_attr_pwm1_max
.dev_attr
.attr
,
716 static umode_t
hwmon_attributes_visible(struct kobject
*kobj
,
717 struct attribute
*attr
, int index
)
719 struct device
*dev
= container_of(kobj
, struct device
, kobj
);
720 struct radeon_device
*rdev
= dev_get_drvdata(dev
);
721 umode_t effective_mode
= attr
->mode
;
723 /* Skip limit attributes if DPM is not enabled */
724 if (rdev
->pm
.pm_method
!= PM_METHOD_DPM
&&
725 (attr
== &sensor_dev_attr_temp1_crit
.dev_attr
.attr
||
726 attr
== &sensor_dev_attr_temp1_crit_hyst
.dev_attr
.attr
))
729 /* Skip fan attributes if fan is not present */
730 if (rdev
->pm
.no_fan
&&
731 (attr
== &sensor_dev_attr_pwm1
.dev_attr
.attr
||
732 attr
== &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
||
733 attr
== &sensor_dev_attr_pwm1_max
.dev_attr
.attr
||
734 attr
== &sensor_dev_attr_pwm1_min
.dev_attr
.attr
))
737 /* mask fan attributes if we have no bindings for this asic to expose */
738 if ((!rdev
->asic
->dpm
.get_fan_speed_percent
&&
739 attr
== &sensor_dev_attr_pwm1
.dev_attr
.attr
) || /* can't query fan */
740 (!rdev
->asic
->dpm
.fan_ctrl_get_mode
&&
741 attr
== &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
)) /* can't query state */
742 effective_mode
&= ~S_IRUGO
;
744 if ((!rdev
->asic
->dpm
.set_fan_speed_percent
&&
745 attr
== &sensor_dev_attr_pwm1
.dev_attr
.attr
) || /* can't manage fan */
746 (!rdev
->asic
->dpm
.fan_ctrl_set_mode
&&
747 attr
== &sensor_dev_attr_pwm1_enable
.dev_attr
.attr
)) /* can't manage state */
748 effective_mode
&= ~S_IWUSR
;
750 /* hide max/min values if we can't both query and manage the fan */
751 if ((!rdev
->asic
->dpm
.set_fan_speed_percent
&&
752 !rdev
->asic
->dpm
.get_fan_speed_percent
) &&
753 (attr
== &sensor_dev_attr_pwm1_max
.dev_attr
.attr
||
754 attr
== &sensor_dev_attr_pwm1_min
.dev_attr
.attr
))
757 return effective_mode
;
760 static const struct attribute_group hwmon_attrgroup
= {
761 .attrs
= hwmon_attributes
,
762 .is_visible
= hwmon_attributes_visible
,
765 static const struct attribute_group
*hwmon_groups
[] = {
770 static int radeon_hwmon_init(struct radeon_device
*rdev
)
774 switch (rdev
->pm
.int_thermal_type
) {
775 case THERMAL_TYPE_RV6XX
:
776 case THERMAL_TYPE_RV770
:
777 case THERMAL_TYPE_EVERGREEN
:
778 case THERMAL_TYPE_NI
:
779 case THERMAL_TYPE_SUMO
:
780 case THERMAL_TYPE_SI
:
781 case THERMAL_TYPE_CI
:
782 case THERMAL_TYPE_KV
:
783 if (rdev
->asic
->pm
.get_temperature
== NULL
)
785 rdev
->pm
.int_hwmon_dev
= hwmon_device_register_with_groups(rdev
->dev
,
788 if (IS_ERR(rdev
->pm
.int_hwmon_dev
)) {
789 err
= PTR_ERR(rdev
->pm
.int_hwmon_dev
);
791 "Unable to register hwmon device: %d\n", err
);
801 static void radeon_hwmon_fini(struct radeon_device
*rdev
)
803 if (rdev
->pm
.int_hwmon_dev
)
804 hwmon_device_unregister(rdev
->pm
.int_hwmon_dev
);
807 static void radeon_dpm_thermal_work_handler(struct work_struct
*work
)
809 struct radeon_device
*rdev
=
810 container_of(work
, struct radeon_device
,
811 pm
.dpm
.thermal
.work
);
812 /* switch to the thermal state */
813 enum radeon_pm_state_type dpm_state
= POWER_STATE_TYPE_INTERNAL_THERMAL
;
815 if (!rdev
->pm
.dpm_enabled
)
818 if (rdev
->asic
->pm
.get_temperature
) {
819 int temp
= radeon_get_temperature(rdev
);
821 if (temp
< rdev
->pm
.dpm
.thermal
.min_temp
)
822 /* switch back the user state */
823 dpm_state
= rdev
->pm
.dpm
.user_state
;
825 if (rdev
->pm
.dpm
.thermal
.high_to_low
)
826 /* switch back the user state */
827 dpm_state
= rdev
->pm
.dpm
.user_state
;
829 mutex_lock(&rdev
->pm
.mutex
);
830 if (dpm_state
== POWER_STATE_TYPE_INTERNAL_THERMAL
)
831 rdev
->pm
.dpm
.thermal_active
= true;
833 rdev
->pm
.dpm
.thermal_active
= false;
834 rdev
->pm
.dpm
.state
= dpm_state
;
835 mutex_unlock(&rdev
->pm
.mutex
);
837 radeon_pm_compute_clocks(rdev
);
840 static struct radeon_ps
*radeon_dpm_pick_power_state(struct radeon_device
*rdev
,
841 enum radeon_pm_state_type dpm_state
)
844 struct radeon_ps
*ps
;
846 bool single_display
= (rdev
->pm
.dpm
.new_active_crtc_count
< 2) ?
849 /* check if the vblank period is too short to adjust the mclk */
850 if (single_display
&& rdev
->asic
->dpm
.vblank_too_short
) {
851 if (radeon_dpm_vblank_too_short(rdev
))
852 single_display
= false;
855 /* 120hz tends to be problematic even if they are under the
858 if (single_display
&& (r600_dpm_get_vrefresh(rdev
) >= 120))
859 single_display
= false;
861 /* certain older asics have a separare 3D performance state,
862 * so try that first if the user selected performance
864 if (dpm_state
== POWER_STATE_TYPE_PERFORMANCE
)
865 dpm_state
= POWER_STATE_TYPE_INTERNAL_3DPERF
;
866 /* balanced states don't exist at the moment */
867 if (dpm_state
== POWER_STATE_TYPE_BALANCED
)
868 dpm_state
= POWER_STATE_TYPE_PERFORMANCE
;
871 /* Pick the best power state based on current conditions */
872 for (i
= 0; i
< rdev
->pm
.dpm
.num_ps
; i
++) {
873 ps
= &rdev
->pm
.dpm
.ps
[i
];
874 ui_class
= ps
->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK
;
877 case POWER_STATE_TYPE_BATTERY
:
878 if (ui_class
== ATOM_PPLIB_CLASSIFICATION_UI_BATTERY
) {
879 if (ps
->caps
& ATOM_PPLIB_SINGLE_DISPLAY_ONLY
) {
886 case POWER_STATE_TYPE_BALANCED
:
887 if (ui_class
== ATOM_PPLIB_CLASSIFICATION_UI_BALANCED
) {
888 if (ps
->caps
& ATOM_PPLIB_SINGLE_DISPLAY_ONLY
) {
895 case POWER_STATE_TYPE_PERFORMANCE
:
896 if (ui_class
== ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE
) {
897 if (ps
->caps
& ATOM_PPLIB_SINGLE_DISPLAY_ONLY
) {
904 /* internal states */
905 case POWER_STATE_TYPE_INTERNAL_UVD
:
906 if (rdev
->pm
.dpm
.uvd_ps
)
907 return rdev
->pm
.dpm
.uvd_ps
;
910 case POWER_STATE_TYPE_INTERNAL_UVD_SD
:
911 if (ps
->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE
)
914 case POWER_STATE_TYPE_INTERNAL_UVD_HD
:
915 if (ps
->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE
)
918 case POWER_STATE_TYPE_INTERNAL_UVD_HD2
:
919 if (ps
->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE
)
922 case POWER_STATE_TYPE_INTERNAL_UVD_MVC
:
923 if (ps
->class2
& ATOM_PPLIB_CLASSIFICATION2_MVC
)
926 case POWER_STATE_TYPE_INTERNAL_BOOT
:
927 return rdev
->pm
.dpm
.boot_ps
;
928 case POWER_STATE_TYPE_INTERNAL_THERMAL
:
929 if (ps
->class & ATOM_PPLIB_CLASSIFICATION_THERMAL
)
932 case POWER_STATE_TYPE_INTERNAL_ACPI
:
933 if (ps
->class & ATOM_PPLIB_CLASSIFICATION_ACPI
)
936 case POWER_STATE_TYPE_INTERNAL_ULV
:
937 if (ps
->class2
& ATOM_PPLIB_CLASSIFICATION2_ULV
)
940 case POWER_STATE_TYPE_INTERNAL_3DPERF
:
941 if (ps
->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE
)
948 /* use a fallback state if we didn't match */
950 case POWER_STATE_TYPE_INTERNAL_UVD_SD
:
951 dpm_state
= POWER_STATE_TYPE_INTERNAL_UVD_HD
;
953 case POWER_STATE_TYPE_INTERNAL_UVD_HD
:
954 case POWER_STATE_TYPE_INTERNAL_UVD_HD2
:
955 case POWER_STATE_TYPE_INTERNAL_UVD_MVC
:
956 if (rdev
->pm
.dpm
.uvd_ps
) {
957 return rdev
->pm
.dpm
.uvd_ps
;
959 dpm_state
= POWER_STATE_TYPE_PERFORMANCE
;
962 case POWER_STATE_TYPE_INTERNAL_THERMAL
:
963 dpm_state
= POWER_STATE_TYPE_INTERNAL_ACPI
;
965 case POWER_STATE_TYPE_INTERNAL_ACPI
:
966 dpm_state
= POWER_STATE_TYPE_BATTERY
;
968 case POWER_STATE_TYPE_BATTERY
:
969 case POWER_STATE_TYPE_BALANCED
:
970 case POWER_STATE_TYPE_INTERNAL_3DPERF
:
971 dpm_state
= POWER_STATE_TYPE_PERFORMANCE
;
980 static void radeon_dpm_change_power_state_locked(struct radeon_device
*rdev
)
983 struct radeon_ps
*ps
;
984 enum radeon_pm_state_type dpm_state
;
987 /* if dpm init failed */
988 if (!rdev
->pm
.dpm_enabled
)
991 if (rdev
->pm
.dpm
.user_state
!= rdev
->pm
.dpm
.state
) {
992 /* add other state override checks here */
993 if ((!rdev
->pm
.dpm
.thermal_active
) &&
994 (!rdev
->pm
.dpm
.uvd_active
))
995 rdev
->pm
.dpm
.state
= rdev
->pm
.dpm
.user_state
;
997 dpm_state
= rdev
->pm
.dpm
.state
;
999 ps
= radeon_dpm_pick_power_state(rdev
, dpm_state
);
1001 rdev
->pm
.dpm
.requested_ps
= ps
;
1005 /* no need to reprogram if nothing changed unless we are on BTC+ */
1006 if (rdev
->pm
.dpm
.current_ps
== rdev
->pm
.dpm
.requested_ps
) {
1007 /* vce just modifies an existing state so force a change */
1008 if (ps
->vce_active
!= rdev
->pm
.dpm
.vce_active
)
1010 if ((rdev
->family
< CHIP_BARTS
) || (rdev
->flags
& RADEON_IS_IGP
)) {
1011 /* for pre-BTC and APUs if the num crtcs changed but state is the same,
1012 * all we need to do is update the display configuration.
1014 if (rdev
->pm
.dpm
.new_active_crtcs
!= rdev
->pm
.dpm
.current_active_crtcs
) {
1015 /* update display watermarks based on new power state */
1016 radeon_bandwidth_update(rdev
);
1017 /* update displays */
1018 radeon_dpm_display_configuration_changed(rdev
);
1019 rdev
->pm
.dpm
.current_active_crtcs
= rdev
->pm
.dpm
.new_active_crtcs
;
1020 rdev
->pm
.dpm
.current_active_crtc_count
= rdev
->pm
.dpm
.new_active_crtc_count
;
1024 /* for BTC+ if the num crtcs hasn't changed and state is the same,
1025 * nothing to do, if the num crtcs is > 1 and state is the same,
1026 * update display configuration.
1028 if (rdev
->pm
.dpm
.new_active_crtcs
==
1029 rdev
->pm
.dpm
.current_active_crtcs
) {
1032 if ((rdev
->pm
.dpm
.current_active_crtc_count
> 1) &&
1033 (rdev
->pm
.dpm
.new_active_crtc_count
> 1)) {
1034 /* update display watermarks based on new power state */
1035 radeon_bandwidth_update(rdev
);
1036 /* update displays */
1037 radeon_dpm_display_configuration_changed(rdev
);
1038 rdev
->pm
.dpm
.current_active_crtcs
= rdev
->pm
.dpm
.new_active_crtcs
;
1039 rdev
->pm
.dpm
.current_active_crtc_count
= rdev
->pm
.dpm
.new_active_crtc_count
;
1047 if (radeon_dpm
== 1) {
1048 printk("switching from power state:\n");
1049 radeon_dpm_print_power_state(rdev
, rdev
->pm
.dpm
.current_ps
);
1050 printk("switching to power state:\n");
1051 radeon_dpm_print_power_state(rdev
, rdev
->pm
.dpm
.requested_ps
);
1054 mutex_lock(&rdev
->ddev
->struct_mutex
);
1055 down_write(&rdev
->pm
.mclk_lock
);
1056 mutex_lock(&rdev
->ring_lock
);
1058 /* update whether vce is active */
1059 ps
->vce_active
= rdev
->pm
.dpm
.vce_active
;
1061 ret
= radeon_dpm_pre_set_power_state(rdev
);
1065 /* update display watermarks based on new power state */
1066 radeon_bandwidth_update(rdev
);
1067 /* update displays */
1068 radeon_dpm_display_configuration_changed(rdev
);
1070 rdev
->pm
.dpm
.current_active_crtcs
= rdev
->pm
.dpm
.new_active_crtcs
;
1071 rdev
->pm
.dpm
.current_active_crtc_count
= rdev
->pm
.dpm
.new_active_crtc_count
;
1073 /* wait for the rings to drain */
1074 for (i
= 0; i
< RADEON_NUM_RINGS
; i
++) {
1075 struct radeon_ring
*ring
= &rdev
->ring
[i
];
1077 radeon_fence_wait_empty(rdev
, i
);
1080 /* program the new power state */
1081 radeon_dpm_set_power_state(rdev
);
1083 /* update current power state */
1084 rdev
->pm
.dpm
.current_ps
= rdev
->pm
.dpm
.requested_ps
;
1086 radeon_dpm_post_set_power_state(rdev
);
1088 if (rdev
->asic
->dpm
.force_performance_level
) {
1089 if (rdev
->pm
.dpm
.thermal_active
) {
1090 enum radeon_dpm_forced_level level
= rdev
->pm
.dpm
.forced_level
;
1091 /* force low perf level for thermal */
1092 radeon_dpm_force_performance_level(rdev
, RADEON_DPM_FORCED_LEVEL_LOW
);
1093 /* save the user's level */
1094 rdev
->pm
.dpm
.forced_level
= level
;
1096 /* otherwise, user selected level */
1097 radeon_dpm_force_performance_level(rdev
, rdev
->pm
.dpm
.forced_level
);
1102 mutex_unlock(&rdev
->ring_lock
);
1103 up_write(&rdev
->pm
.mclk_lock
);
1104 mutex_unlock(&rdev
->ddev
->struct_mutex
);
1107 void radeon_dpm_enable_uvd(struct radeon_device
*rdev
, bool enable
)
1109 enum radeon_pm_state_type dpm_state
;
1111 if (rdev
->asic
->dpm
.powergate_uvd
) {
1112 mutex_lock(&rdev
->pm
.mutex
);
1113 /* don't powergate anything if we
1114 have active but pause streams */
1115 enable
|= rdev
->pm
.dpm
.sd
> 0;
1116 enable
|= rdev
->pm
.dpm
.hd
> 0;
1117 /* enable/disable UVD */
1118 radeon_dpm_powergate_uvd(rdev
, !enable
);
1119 mutex_unlock(&rdev
->pm
.mutex
);
1122 mutex_lock(&rdev
->pm
.mutex
);
1123 rdev
->pm
.dpm
.uvd_active
= true;
1124 /* disable this for now */
1126 if ((rdev
->pm
.dpm
.sd
== 1) && (rdev
->pm
.dpm
.hd
== 0))
1127 dpm_state
= POWER_STATE_TYPE_INTERNAL_UVD_SD
;
1128 else if ((rdev
->pm
.dpm
.sd
== 2) && (rdev
->pm
.dpm
.hd
== 0))
1129 dpm_state
= POWER_STATE_TYPE_INTERNAL_UVD_HD
;
1130 else if ((rdev
->pm
.dpm
.sd
== 0) && (rdev
->pm
.dpm
.hd
== 1))
1131 dpm_state
= POWER_STATE_TYPE_INTERNAL_UVD_HD
;
1132 else if ((rdev
->pm
.dpm
.sd
== 0) && (rdev
->pm
.dpm
.hd
== 2))
1133 dpm_state
= POWER_STATE_TYPE_INTERNAL_UVD_HD2
;
1136 dpm_state
= POWER_STATE_TYPE_INTERNAL_UVD
;
1137 rdev
->pm
.dpm
.state
= dpm_state
;
1138 mutex_unlock(&rdev
->pm
.mutex
);
1140 mutex_lock(&rdev
->pm
.mutex
);
1141 rdev
->pm
.dpm
.uvd_active
= false;
1142 mutex_unlock(&rdev
->pm
.mutex
);
1145 radeon_pm_compute_clocks(rdev
);
1149 void radeon_dpm_enable_vce(struct radeon_device
*rdev
, bool enable
)
1152 mutex_lock(&rdev
->pm
.mutex
);
1153 rdev
->pm
.dpm
.vce_active
= true;
1154 /* XXX select vce level based on ring/task */
1155 rdev
->pm
.dpm
.vce_level
= RADEON_VCE_LEVEL_AC_ALL
;
1156 mutex_unlock(&rdev
->pm
.mutex
);
1158 mutex_lock(&rdev
->pm
.mutex
);
1159 rdev
->pm
.dpm
.vce_active
= false;
1160 mutex_unlock(&rdev
->pm
.mutex
);
1163 radeon_pm_compute_clocks(rdev
);
1166 static void radeon_pm_suspend_old(struct radeon_device
*rdev
)
1168 mutex_lock(&rdev
->pm
.mutex
);
1169 if (rdev
->pm
.pm_method
== PM_METHOD_DYNPM
) {
1170 if (rdev
->pm
.dynpm_state
== DYNPM_STATE_ACTIVE
)
1171 rdev
->pm
.dynpm_state
= DYNPM_STATE_SUSPENDED
;
1173 mutex_unlock(&rdev
->pm
.mutex
);
1175 cancel_delayed_work_sync(&rdev
->pm
.dynpm_idle_work
);
1178 static void radeon_pm_suspend_dpm(struct radeon_device
*rdev
)
1180 mutex_lock(&rdev
->pm
.mutex
);
1182 radeon_dpm_disable(rdev
);
1183 /* reset the power state */
1184 rdev
->pm
.dpm
.current_ps
= rdev
->pm
.dpm
.requested_ps
= rdev
->pm
.dpm
.boot_ps
;
1185 rdev
->pm
.dpm_enabled
= false;
1186 mutex_unlock(&rdev
->pm
.mutex
);
1189 void radeon_pm_suspend(struct radeon_device
*rdev
)
1191 if (rdev
->pm
.pm_method
== PM_METHOD_DPM
)
1192 radeon_pm_suspend_dpm(rdev
);
1194 radeon_pm_suspend_old(rdev
);
1197 static void radeon_pm_resume_old(struct radeon_device
*rdev
)
1199 /* set up the default clocks if the MC ucode is loaded */
1200 if ((rdev
->family
>= CHIP_BARTS
) &&
1201 (rdev
->family
<= CHIP_CAYMAN
) &&
1203 if (rdev
->pm
.default_vddc
)
1204 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddc
,
1205 SET_VOLTAGE_TYPE_ASIC_VDDC
);
1206 if (rdev
->pm
.default_vddci
)
1207 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddci
,
1208 SET_VOLTAGE_TYPE_ASIC_VDDCI
);
1209 if (rdev
->pm
.default_sclk
)
1210 radeon_set_engine_clock(rdev
, rdev
->pm
.default_sclk
);
1211 if (rdev
->pm
.default_mclk
)
1212 radeon_set_memory_clock(rdev
, rdev
->pm
.default_mclk
);
1214 /* asic init will reset the default power state */
1215 mutex_lock(&rdev
->pm
.mutex
);
1216 rdev
->pm
.current_power_state_index
= rdev
->pm
.default_power_state_index
;
1217 rdev
->pm
.current_clock_mode_index
= 0;
1218 rdev
->pm
.current_sclk
= rdev
->pm
.default_sclk
;
1219 rdev
->pm
.current_mclk
= rdev
->pm
.default_mclk
;
1220 if (rdev
->pm
.power_state
) {
1221 rdev
->pm
.current_vddc
= rdev
->pm
.power_state
[rdev
->pm
.default_power_state_index
].clock_info
[0].voltage
.voltage
;
1222 rdev
->pm
.current_vddci
= rdev
->pm
.power_state
[rdev
->pm
.default_power_state_index
].clock_info
[0].voltage
.vddci
;
1224 if (rdev
->pm
.pm_method
== PM_METHOD_DYNPM
1225 && rdev
->pm
.dynpm_state
== DYNPM_STATE_SUSPENDED
) {
1226 rdev
->pm
.dynpm_state
= DYNPM_STATE_ACTIVE
;
1227 schedule_delayed_work(&rdev
->pm
.dynpm_idle_work
,
1228 msecs_to_jiffies(RADEON_IDLE_LOOP_MS
));
1230 mutex_unlock(&rdev
->pm
.mutex
);
1231 radeon_pm_compute_clocks(rdev
);
1234 static void radeon_pm_resume_dpm(struct radeon_device
*rdev
)
1238 /* asic init will reset to the boot state */
1239 mutex_lock(&rdev
->pm
.mutex
);
1240 rdev
->pm
.dpm
.current_ps
= rdev
->pm
.dpm
.requested_ps
= rdev
->pm
.dpm
.boot_ps
;
1241 radeon_dpm_setup_asic(rdev
);
1242 ret
= radeon_dpm_enable(rdev
);
1243 mutex_unlock(&rdev
->pm
.mutex
);
1245 goto dpm_resume_fail
;
1246 rdev
->pm
.dpm_enabled
= true;
1250 DRM_ERROR("radeon: dpm resume failed\n");
1251 if ((rdev
->family
>= CHIP_BARTS
) &&
1252 (rdev
->family
<= CHIP_CAYMAN
) &&
1254 if (rdev
->pm
.default_vddc
)
1255 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddc
,
1256 SET_VOLTAGE_TYPE_ASIC_VDDC
);
1257 if (rdev
->pm
.default_vddci
)
1258 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddci
,
1259 SET_VOLTAGE_TYPE_ASIC_VDDCI
);
1260 if (rdev
->pm
.default_sclk
)
1261 radeon_set_engine_clock(rdev
, rdev
->pm
.default_sclk
);
1262 if (rdev
->pm
.default_mclk
)
1263 radeon_set_memory_clock(rdev
, rdev
->pm
.default_mclk
);
1267 void radeon_pm_resume(struct radeon_device
*rdev
)
1269 if (rdev
->pm
.pm_method
== PM_METHOD_DPM
)
1270 radeon_pm_resume_dpm(rdev
);
1272 radeon_pm_resume_old(rdev
);
1275 static int radeon_pm_init_old(struct radeon_device
*rdev
)
1279 rdev
->pm
.profile
= PM_PROFILE_DEFAULT
;
1280 rdev
->pm
.dynpm_state
= DYNPM_STATE_DISABLED
;
1281 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_NONE
;
1282 rdev
->pm
.dynpm_can_upclock
= true;
1283 rdev
->pm
.dynpm_can_downclock
= true;
1284 rdev
->pm
.default_sclk
= rdev
->clock
.default_sclk
;
1285 rdev
->pm
.default_mclk
= rdev
->clock
.default_mclk
;
1286 rdev
->pm
.current_sclk
= rdev
->clock
.default_sclk
;
1287 rdev
->pm
.current_mclk
= rdev
->clock
.default_mclk
;
1288 rdev
->pm
.int_thermal_type
= THERMAL_TYPE_NONE
;
1291 if (rdev
->is_atom_bios
)
1292 radeon_atombios_get_power_modes(rdev
);
1294 radeon_combios_get_power_modes(rdev
);
1295 radeon_pm_print_states(rdev
);
1296 radeon_pm_init_profile(rdev
);
1297 /* set up the default clocks if the MC ucode is loaded */
1298 if ((rdev
->family
>= CHIP_BARTS
) &&
1299 (rdev
->family
<= CHIP_CAYMAN
) &&
1301 if (rdev
->pm
.default_vddc
)
1302 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddc
,
1303 SET_VOLTAGE_TYPE_ASIC_VDDC
);
1304 if (rdev
->pm
.default_vddci
)
1305 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddci
,
1306 SET_VOLTAGE_TYPE_ASIC_VDDCI
);
1307 if (rdev
->pm
.default_sclk
)
1308 radeon_set_engine_clock(rdev
, rdev
->pm
.default_sclk
);
1309 if (rdev
->pm
.default_mclk
)
1310 radeon_set_memory_clock(rdev
, rdev
->pm
.default_mclk
);
1314 /* set up the internal thermal sensor if applicable */
1315 ret
= radeon_hwmon_init(rdev
);
1319 INIT_DELAYED_WORK(&rdev
->pm
.dynpm_idle_work
, radeon_dynpm_idle_work_handler
);
1321 if (rdev
->pm
.num_power_states
> 1) {
1322 /* where's the best place to put these? */
1323 ret
= device_create_file(rdev
->dev
, &dev_attr_power_profile
);
1325 DRM_ERROR("failed to create device file for power profile\n");
1326 ret
= device_create_file(rdev
->dev
, &dev_attr_power_method
);
1328 DRM_ERROR("failed to create device file for power method\n");
1330 if (radeon_debugfs_pm_init(rdev
)) {
1331 DRM_ERROR("Failed to register debugfs file for PM!\n");
1334 DRM_INFO("radeon: power management initialized\n");
1340 static void radeon_dpm_print_power_states(struct radeon_device
*rdev
)
1344 for (i
= 0; i
< rdev
->pm
.dpm
.num_ps
; i
++) {
1345 printk("== power state %d ==\n", i
);
1346 radeon_dpm_print_power_state(rdev
, &rdev
->pm
.dpm
.ps
[i
]);
1350 static int radeon_pm_init_dpm(struct radeon_device
*rdev
)
1354 /* default to balanced state */
1355 rdev
->pm
.dpm
.state
= POWER_STATE_TYPE_BALANCED
;
1356 rdev
->pm
.dpm
.user_state
= POWER_STATE_TYPE_BALANCED
;
1357 rdev
->pm
.dpm
.forced_level
= RADEON_DPM_FORCED_LEVEL_AUTO
;
1358 rdev
->pm
.default_sclk
= rdev
->clock
.default_sclk
;
1359 rdev
->pm
.default_mclk
= rdev
->clock
.default_mclk
;
1360 rdev
->pm
.current_sclk
= rdev
->clock
.default_sclk
;
1361 rdev
->pm
.current_mclk
= rdev
->clock
.default_mclk
;
1362 rdev
->pm
.int_thermal_type
= THERMAL_TYPE_NONE
;
1364 if (rdev
->bios
&& rdev
->is_atom_bios
)
1365 radeon_atombios_get_power_modes(rdev
);
1369 /* set up the internal thermal sensor if applicable */
1370 ret
= radeon_hwmon_init(rdev
);
1374 INIT_WORK(&rdev
->pm
.dpm
.thermal
.work
, radeon_dpm_thermal_work_handler
);
1375 mutex_lock(&rdev
->pm
.mutex
);
1376 radeon_dpm_init(rdev
);
1377 rdev
->pm
.dpm
.current_ps
= rdev
->pm
.dpm
.requested_ps
= rdev
->pm
.dpm
.boot_ps
;
1378 if (radeon_dpm
== 1)
1379 radeon_dpm_print_power_states(rdev
);
1380 radeon_dpm_setup_asic(rdev
);
1381 ret
= radeon_dpm_enable(rdev
);
1382 mutex_unlock(&rdev
->pm
.mutex
);
1385 rdev
->pm
.dpm_enabled
= true;
1387 ret
= device_create_file(rdev
->dev
, &dev_attr_power_dpm_state
);
1389 DRM_ERROR("failed to create device file for dpm state\n");
1390 ret
= device_create_file(rdev
->dev
, &dev_attr_power_dpm_force_performance_level
);
1392 DRM_ERROR("failed to create device file for dpm state\n");
1393 /* XXX: these are noops for dpm but are here for backwards compat */
1394 ret
= device_create_file(rdev
->dev
, &dev_attr_power_profile
);
1396 DRM_ERROR("failed to create device file for power profile\n");
1397 ret
= device_create_file(rdev
->dev
, &dev_attr_power_method
);
1399 DRM_ERROR("failed to create device file for power method\n");
1401 if (radeon_debugfs_pm_init(rdev
)) {
1402 DRM_ERROR("Failed to register debugfs file for dpm!\n");
1405 DRM_INFO("radeon: dpm initialized\n");
1410 rdev
->pm
.dpm_enabled
= false;
1411 if ((rdev
->family
>= CHIP_BARTS
) &&
1412 (rdev
->family
<= CHIP_CAYMAN
) &&
1414 if (rdev
->pm
.default_vddc
)
1415 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddc
,
1416 SET_VOLTAGE_TYPE_ASIC_VDDC
);
1417 if (rdev
->pm
.default_vddci
)
1418 radeon_atom_set_voltage(rdev
, rdev
->pm
.default_vddci
,
1419 SET_VOLTAGE_TYPE_ASIC_VDDCI
);
1420 if (rdev
->pm
.default_sclk
)
1421 radeon_set_engine_clock(rdev
, rdev
->pm
.default_sclk
);
1422 if (rdev
->pm
.default_mclk
)
1423 radeon_set_memory_clock(rdev
, rdev
->pm
.default_mclk
);
1425 DRM_ERROR("radeon: dpm initialization failed\n");
1429 struct radeon_dpm_quirk
{
1436 /* cards with dpm stability problems */
1437 static struct radeon_dpm_quirk radeon_dpm_quirk_list
[] = {
1438 /* TURKS - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386534 */
1439 { PCI_VENDOR_ID_ATI
, 0x6759, 0x1682, 0x3195 },
1440 /* TURKS - https://bugzilla.kernel.org/show_bug.cgi?id=83731 */
1441 { PCI_VENDOR_ID_ATI
, 0x6840, 0x1179, 0xfb81 },
1445 int radeon_pm_init(struct radeon_device
*rdev
)
1447 struct radeon_dpm_quirk
*p
= radeon_dpm_quirk_list
;
1448 bool disable_dpm
= false;
1450 /* Apply dpm quirks */
1451 while (p
&& p
->chip_device
!= 0) {
1452 if (rdev
->pdev
->vendor
== p
->chip_vendor
&&
1453 rdev
->pdev
->device
== p
->chip_device
&&
1454 rdev
->pdev
->subsystem_vendor
== p
->subsys_vendor
&&
1455 rdev
->pdev
->subsystem_device
== p
->subsys_device
) {
1462 /* enable dpm on rv6xx+ */
1463 switch (rdev
->family
) {
1472 /* DPM requires the RLC, RV770+ dGPU requires SMC */
1474 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1475 else if ((rdev
->family
>= CHIP_RV770
) &&
1476 (!(rdev
->flags
& RADEON_IS_IGP
)) &&
1478 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1479 else if (radeon_dpm
== 1)
1480 rdev
->pm
.pm_method
= PM_METHOD_DPM
;
1482 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1510 /* DPM requires the RLC, RV770+ dGPU requires SMC */
1512 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1513 else if ((rdev
->family
>= CHIP_RV770
) &&
1514 (!(rdev
->flags
& RADEON_IS_IGP
)) &&
1516 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1517 else if (disable_dpm
&& (radeon_dpm
== -1))
1518 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1519 else if (radeon_dpm
== 0)
1520 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1522 rdev
->pm
.pm_method
= PM_METHOD_DPM
;
1525 /* default to profile method */
1526 rdev
->pm
.pm_method
= PM_METHOD_PROFILE
;
1530 if (rdev
->pm
.pm_method
== PM_METHOD_DPM
)
1531 return radeon_pm_init_dpm(rdev
);
1533 return radeon_pm_init_old(rdev
);
1536 int radeon_pm_late_init(struct radeon_device
*rdev
)
1540 if (rdev
->pm
.pm_method
== PM_METHOD_DPM
) {
1541 mutex_lock(&rdev
->pm
.mutex
);
1542 ret
= radeon_dpm_late_enable(rdev
);
1543 mutex_unlock(&rdev
->pm
.mutex
);
1548 static void radeon_pm_fini_old(struct radeon_device
*rdev
)
1550 if (rdev
->pm
.num_power_states
> 1) {
1551 mutex_lock(&rdev
->pm
.mutex
);
1552 if (rdev
->pm
.pm_method
== PM_METHOD_PROFILE
) {
1553 rdev
->pm
.profile
= PM_PROFILE_DEFAULT
;
1554 radeon_pm_update_profile(rdev
);
1555 radeon_pm_set_clocks(rdev
);
1556 } else if (rdev
->pm
.pm_method
== PM_METHOD_DYNPM
) {
1557 /* reset default clocks */
1558 rdev
->pm
.dynpm_state
= DYNPM_STATE_DISABLED
;
1559 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_DEFAULT
;
1560 radeon_pm_set_clocks(rdev
);
1562 mutex_unlock(&rdev
->pm
.mutex
);
1564 cancel_delayed_work_sync(&rdev
->pm
.dynpm_idle_work
);
1566 device_remove_file(rdev
->dev
, &dev_attr_power_profile
);
1567 device_remove_file(rdev
->dev
, &dev_attr_power_method
);
1570 radeon_hwmon_fini(rdev
);
1571 kfree(rdev
->pm
.power_state
);
1574 static void radeon_pm_fini_dpm(struct radeon_device
*rdev
)
1576 if (rdev
->pm
.num_power_states
> 1) {
1577 mutex_lock(&rdev
->pm
.mutex
);
1578 radeon_dpm_disable(rdev
);
1579 mutex_unlock(&rdev
->pm
.mutex
);
1581 device_remove_file(rdev
->dev
, &dev_attr_power_dpm_state
);
1582 device_remove_file(rdev
->dev
, &dev_attr_power_dpm_force_performance_level
);
1583 /* XXX backwards compat */
1584 device_remove_file(rdev
->dev
, &dev_attr_power_profile
);
1585 device_remove_file(rdev
->dev
, &dev_attr_power_method
);
1587 radeon_dpm_fini(rdev
);
1589 radeon_hwmon_fini(rdev
);
1590 kfree(rdev
->pm
.power_state
);
1593 void radeon_pm_fini(struct radeon_device
*rdev
)
1595 if (rdev
->pm
.pm_method
== PM_METHOD_DPM
)
1596 radeon_pm_fini_dpm(rdev
);
1598 radeon_pm_fini_old(rdev
);
1601 static void radeon_pm_compute_clocks_old(struct radeon_device
*rdev
)
1603 struct drm_device
*ddev
= rdev
->ddev
;
1604 struct drm_crtc
*crtc
;
1605 struct radeon_crtc
*radeon_crtc
;
1607 if (rdev
->pm
.num_power_states
< 2)
1610 mutex_lock(&rdev
->pm
.mutex
);
1612 rdev
->pm
.active_crtcs
= 0;
1613 rdev
->pm
.active_crtc_count
= 0;
1614 if (rdev
->num_crtc
&& rdev
->mode_info
.mode_config_initialized
) {
1615 list_for_each_entry(crtc
,
1616 &ddev
->mode_config
.crtc_list
, head
) {
1617 radeon_crtc
= to_radeon_crtc(crtc
);
1618 if (radeon_crtc
->enabled
) {
1619 rdev
->pm
.active_crtcs
|= (1 << radeon_crtc
->crtc_id
);
1620 rdev
->pm
.active_crtc_count
++;
1625 if (rdev
->pm
.pm_method
== PM_METHOD_PROFILE
) {
1626 radeon_pm_update_profile(rdev
);
1627 radeon_pm_set_clocks(rdev
);
1628 } else if (rdev
->pm
.pm_method
== PM_METHOD_DYNPM
) {
1629 if (rdev
->pm
.dynpm_state
!= DYNPM_STATE_DISABLED
) {
1630 if (rdev
->pm
.active_crtc_count
> 1) {
1631 if (rdev
->pm
.dynpm_state
== DYNPM_STATE_ACTIVE
) {
1632 cancel_delayed_work(&rdev
->pm
.dynpm_idle_work
);
1634 rdev
->pm
.dynpm_state
= DYNPM_STATE_PAUSED
;
1635 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_DEFAULT
;
1636 radeon_pm_get_dynpm_state(rdev
);
1637 radeon_pm_set_clocks(rdev
);
1639 DRM_DEBUG_DRIVER("radeon: dynamic power management deactivated\n");
1641 } else if (rdev
->pm
.active_crtc_count
== 1) {
1642 /* TODO: Increase clocks if needed for current mode */
1644 if (rdev
->pm
.dynpm_state
== DYNPM_STATE_MINIMUM
) {
1645 rdev
->pm
.dynpm_state
= DYNPM_STATE_ACTIVE
;
1646 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_UPCLOCK
;
1647 radeon_pm_get_dynpm_state(rdev
);
1648 radeon_pm_set_clocks(rdev
);
1650 schedule_delayed_work(&rdev
->pm
.dynpm_idle_work
,
1651 msecs_to_jiffies(RADEON_IDLE_LOOP_MS
));
1652 } else if (rdev
->pm
.dynpm_state
== DYNPM_STATE_PAUSED
) {
1653 rdev
->pm
.dynpm_state
= DYNPM_STATE_ACTIVE
;
1654 schedule_delayed_work(&rdev
->pm
.dynpm_idle_work
,
1655 msecs_to_jiffies(RADEON_IDLE_LOOP_MS
));
1656 DRM_DEBUG_DRIVER("radeon: dynamic power management activated\n");
1658 } else { /* count == 0 */
1659 if (rdev
->pm
.dynpm_state
!= DYNPM_STATE_MINIMUM
) {
1660 cancel_delayed_work(&rdev
->pm
.dynpm_idle_work
);
1662 rdev
->pm
.dynpm_state
= DYNPM_STATE_MINIMUM
;
1663 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_MINIMUM
;
1664 radeon_pm_get_dynpm_state(rdev
);
1665 radeon_pm_set_clocks(rdev
);
1671 mutex_unlock(&rdev
->pm
.mutex
);
1674 static void radeon_pm_compute_clocks_dpm(struct radeon_device
*rdev
)
1676 struct drm_device
*ddev
= rdev
->ddev
;
1677 struct drm_crtc
*crtc
;
1678 struct radeon_crtc
*radeon_crtc
;
1680 if (!rdev
->pm
.dpm_enabled
)
1683 mutex_lock(&rdev
->pm
.mutex
);
1685 /* update active crtc counts */
1686 rdev
->pm
.dpm
.new_active_crtcs
= 0;
1687 rdev
->pm
.dpm
.new_active_crtc_count
= 0;
1688 if (rdev
->num_crtc
&& rdev
->mode_info
.mode_config_initialized
) {
1689 list_for_each_entry(crtc
,
1690 &ddev
->mode_config
.crtc_list
, head
) {
1691 radeon_crtc
= to_radeon_crtc(crtc
);
1692 if (crtc
->enabled
) {
1693 rdev
->pm
.dpm
.new_active_crtcs
|= (1 << radeon_crtc
->crtc_id
);
1694 rdev
->pm
.dpm
.new_active_crtc_count
++;
1699 /* update battery/ac status */
1700 if (power_supply_is_system_supplied() > 0)
1701 rdev
->pm
.dpm
.ac_power
= true;
1703 rdev
->pm
.dpm
.ac_power
= false;
1705 radeon_dpm_change_power_state_locked(rdev
);
1707 mutex_unlock(&rdev
->pm
.mutex
);
1711 void radeon_pm_compute_clocks(struct radeon_device
*rdev
)
1713 if (rdev
->pm
.pm_method
== PM_METHOD_DPM
)
1714 radeon_pm_compute_clocks_dpm(rdev
);
1716 radeon_pm_compute_clocks_old(rdev
);
1719 static bool radeon_pm_in_vbl(struct radeon_device
*rdev
)
1721 int crtc
, vpos
, hpos
, vbl_status
;
1724 /* Iterate over all active crtc's. All crtc's must be in vblank,
1725 * otherwise return in_vbl == false.
1727 for (crtc
= 0; (crtc
< rdev
->num_crtc
) && in_vbl
; crtc
++) {
1728 if (rdev
->pm
.active_crtcs
& (1 << crtc
)) {
1729 vbl_status
= radeon_get_crtc_scanoutpos(rdev
->ddev
, crtc
, 0, &vpos
, &hpos
, NULL
, NULL
);
1730 if ((vbl_status
& DRM_SCANOUTPOS_VALID
) &&
1731 !(vbl_status
& DRM_SCANOUTPOS_IN_VBLANK
))
1739 static bool radeon_pm_debug_check_in_vbl(struct radeon_device
*rdev
, bool finish
)
1742 bool in_vbl
= radeon_pm_in_vbl(rdev
);
1744 if (in_vbl
== false)
1745 DRM_DEBUG_DRIVER("not in vbl for pm change %08x at %s\n", stat_crtc
,
1746 finish
? "exit" : "entry");
1750 static void radeon_dynpm_idle_work_handler(struct work_struct
*work
)
1752 struct radeon_device
*rdev
;
1754 rdev
= container_of(work
, struct radeon_device
,
1755 pm
.dynpm_idle_work
.work
);
1757 resched
= ttm_bo_lock_delayed_workqueue(&rdev
->mman
.bdev
);
1758 mutex_lock(&rdev
->pm
.mutex
);
1759 if (rdev
->pm
.dynpm_state
== DYNPM_STATE_ACTIVE
) {
1760 int not_processed
= 0;
1763 for (i
= 0; i
< RADEON_NUM_RINGS
; ++i
) {
1764 struct radeon_ring
*ring
= &rdev
->ring
[i
];
1767 not_processed
+= radeon_fence_count_emitted(rdev
, i
);
1768 if (not_processed
>= 3)
1773 if (not_processed
>= 3) { /* should upclock */
1774 if (rdev
->pm
.dynpm_planned_action
== DYNPM_ACTION_DOWNCLOCK
) {
1775 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_NONE
;
1776 } else if (rdev
->pm
.dynpm_planned_action
== DYNPM_ACTION_NONE
&&
1777 rdev
->pm
.dynpm_can_upclock
) {
1778 rdev
->pm
.dynpm_planned_action
=
1779 DYNPM_ACTION_UPCLOCK
;
1780 rdev
->pm
.dynpm_action_timeout
= jiffies
+
1781 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS
);
1783 } else if (not_processed
== 0) { /* should downclock */
1784 if (rdev
->pm
.dynpm_planned_action
== DYNPM_ACTION_UPCLOCK
) {
1785 rdev
->pm
.dynpm_planned_action
= DYNPM_ACTION_NONE
;
1786 } else if (rdev
->pm
.dynpm_planned_action
== DYNPM_ACTION_NONE
&&
1787 rdev
->pm
.dynpm_can_downclock
) {
1788 rdev
->pm
.dynpm_planned_action
=
1789 DYNPM_ACTION_DOWNCLOCK
;
1790 rdev
->pm
.dynpm_action_timeout
= jiffies
+
1791 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS
);
1795 /* Note, radeon_pm_set_clocks is called with static_switch set
1796 * to false since we want to wait for vbl to avoid flicker.
1798 if (rdev
->pm
.dynpm_planned_action
!= DYNPM_ACTION_NONE
&&
1799 jiffies
> rdev
->pm
.dynpm_action_timeout
) {
1800 radeon_pm_get_dynpm_state(rdev
);
1801 radeon_pm_set_clocks(rdev
);
1804 schedule_delayed_work(&rdev
->pm
.dynpm_idle_work
,
1805 msecs_to_jiffies(RADEON_IDLE_LOOP_MS
));
1807 mutex_unlock(&rdev
->pm
.mutex
);
1808 ttm_bo_unlock_delayed_workqueue(&rdev
->mman
.bdev
, resched
);
1814 #if defined(CONFIG_DEBUG_FS)
1816 static int radeon_debugfs_pm_info(struct seq_file
*m
, void *data
)
1818 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
1819 struct drm_device
*dev
= node
->minor
->dev
;
1820 struct radeon_device
*rdev
= dev
->dev_private
;
1821 struct drm_device
*ddev
= rdev
->ddev
;
1823 if ((rdev
->flags
& RADEON_IS_PX
) &&
1824 (ddev
->switch_power_state
!= DRM_SWITCH_POWER_ON
)) {
1825 seq_printf(m
, "PX asic powered off\n");
1826 } else if (rdev
->pm
.dpm_enabled
) {
1827 mutex_lock(&rdev
->pm
.mutex
);
1828 if (rdev
->asic
->dpm
.debugfs_print_current_performance_level
)
1829 radeon_dpm_debugfs_print_current_performance_level(rdev
, m
);
1831 seq_printf(m
, "Debugfs support not implemented for this asic\n");
1832 mutex_unlock(&rdev
->pm
.mutex
);
1834 seq_printf(m
, "default engine clock: %u0 kHz\n", rdev
->pm
.default_sclk
);
1835 /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */
1836 if ((rdev
->family
>= CHIP_PALM
) && (rdev
->flags
& RADEON_IS_IGP
))
1837 seq_printf(m
, "current engine clock: %u0 kHz\n", rdev
->pm
.current_sclk
);
1839 seq_printf(m
, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev
));
1840 seq_printf(m
, "default memory clock: %u0 kHz\n", rdev
->pm
.default_mclk
);
1841 if (rdev
->asic
->pm
.get_memory_clock
)
1842 seq_printf(m
, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev
));
1843 if (rdev
->pm
.current_vddc
)
1844 seq_printf(m
, "voltage: %u mV\n", rdev
->pm
.current_vddc
);
1845 if (rdev
->asic
->pm
.get_pcie_lanes
)
1846 seq_printf(m
, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev
));
1852 static struct drm_info_list radeon_pm_info_list
[] = {
1853 {"radeon_pm_info", radeon_debugfs_pm_info
, 0, NULL
},
1857 static int radeon_debugfs_pm_init(struct radeon_device
*rdev
)
1859 #if defined(CONFIG_DEBUG_FS)
1860 return radeon_debugfs_add_files(rdev
, radeon_pm_info_list
, ARRAY_SIZE(radeon_pm_info_list
));