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1/*
2 * Copyright 2017 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Rafał Miłecki <zajec5@gmail.com>
23 * Alex Deucher <alexdeucher@gmail.com>
24 */
25
26#include "amdgpu.h"
27#include "amdgpu_drv.h"
28#include "amdgpu_pm.h"
29#include "amdgpu_dpm.h"
30#include "atom.h"
31#include <linux/pci.h>
32#include <linux/hwmon.h>
33#include <linux/hwmon-sysfs.h>
34#include <linux/nospec.h>
35#include <linux/pm_runtime.h>
36#include <asm/processor.h>
37
38#define MAX_NUM_OF_FEATURES_PER_SUBSET 8
39#define MAX_NUM_OF_SUBSETS 8
40
41struct od_attribute {
42 struct kobj_attribute attribute;
43 struct list_head entry;
44};
45
46struct od_kobj {
47 struct kobject kobj;
48 struct list_head entry;
49 struct list_head attribute;
50 void *priv;
51};
52
53struct od_feature_ops {
54 umode_t (*is_visible)(struct amdgpu_device *adev);
55 ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr,
56 char *buf);
57 ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
58 const char *buf, size_t count);
59};
60
61struct od_feature_item {
62 const char *name;
63 struct od_feature_ops ops;
64};
65
66struct od_feature_container {
67 char *name;
68 struct od_feature_ops ops;
69 struct od_feature_item sub_feature[MAX_NUM_OF_FEATURES_PER_SUBSET];
70};
71
72struct od_feature_set {
73 struct od_feature_container containers[MAX_NUM_OF_SUBSETS];
74};
75
76static const struct hwmon_temp_label {
77 enum PP_HWMON_TEMP channel;
78 const char *label;
79} temp_label[] = {
80 {PP_TEMP_EDGE, "edge"},
81 {PP_TEMP_JUNCTION, "junction"},
82 {PP_TEMP_MEM, "mem"},
83};
84
85const char * const amdgpu_pp_profile_name[] = {
86 "BOOTUP_DEFAULT",
87 "3D_FULL_SCREEN",
88 "POWER_SAVING",
89 "VIDEO",
90 "VR",
91 "COMPUTE",
92 "CUSTOM",
93 "WINDOW_3D",
94 "CAPPED",
95 "UNCAPPED",
96};
97
98/**
99 * DOC: power_dpm_state
100 *
101 * The power_dpm_state file is a legacy interface and is only provided for
102 * backwards compatibility. The amdgpu driver provides a sysfs API for adjusting
103 * certain power related parameters. The file power_dpm_state is used for this.
104 * It accepts the following arguments:
105 *
106 * - battery
107 *
108 * - balanced
109 *
110 * - performance
111 *
112 * battery
113 *
114 * On older GPUs, the vbios provided a special power state for battery
115 * operation. Selecting battery switched to this state. This is no
116 * longer provided on newer GPUs so the option does nothing in that case.
117 *
118 * balanced
119 *
120 * On older GPUs, the vbios provided a special power state for balanced
121 * operation. Selecting balanced switched to this state. This is no
122 * longer provided on newer GPUs so the option does nothing in that case.
123 *
124 * performance
125 *
126 * On older GPUs, the vbios provided a special power state for performance
127 * operation. Selecting performance switched to this state. This is no
128 * longer provided on newer GPUs so the option does nothing in that case.
129 *
130 */
131
132static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
133 struct device_attribute *attr,
134 char *buf)
135{
136 struct drm_device *ddev = dev_get_drvdata(dev);
137 struct amdgpu_device *adev = drm_to_adev(ddev);
138 enum amd_pm_state_type pm;
139 int ret;
140
141 if (amdgpu_in_reset(adev))
142 return -EPERM;
143 if (adev->in_suspend && !adev->in_runpm)
144 return -EPERM;
145
146 ret = pm_runtime_get_sync(ddev->dev);
147 if (ret < 0) {
148 pm_runtime_put_autosuspend(ddev->dev);
149 return ret;
150 }
151
152 amdgpu_dpm_get_current_power_state(adev, &pm);
153
154 pm_runtime_mark_last_busy(ddev->dev);
155 pm_runtime_put_autosuspend(ddev->dev);
156
157 return sysfs_emit(buf, "%s\n",
158 (pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
159 (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
160}
161
162static ssize_t amdgpu_set_power_dpm_state(struct device *dev,
163 struct device_attribute *attr,
164 const char *buf,
165 size_t count)
166{
167 struct drm_device *ddev = dev_get_drvdata(dev);
168 struct amdgpu_device *adev = drm_to_adev(ddev);
169 enum amd_pm_state_type state;
170 int ret;
171
172 if (amdgpu_in_reset(adev))
173 return -EPERM;
174 if (adev->in_suspend && !adev->in_runpm)
175 return -EPERM;
176
177 if (strncmp("battery", buf, strlen("battery")) == 0)
178 state = POWER_STATE_TYPE_BATTERY;
179 else if (strncmp("balanced", buf, strlen("balanced")) == 0)
180 state = POWER_STATE_TYPE_BALANCED;
181 else if (strncmp("performance", buf, strlen("performance")) == 0)
182 state = POWER_STATE_TYPE_PERFORMANCE;
183 else
184 return -EINVAL;
185
186 ret = pm_runtime_get_sync(ddev->dev);
187 if (ret < 0) {
188 pm_runtime_put_autosuspend(ddev->dev);
189 return ret;
190 }
191
192 amdgpu_dpm_set_power_state(adev, state);
193
194 pm_runtime_mark_last_busy(ddev->dev);
195 pm_runtime_put_autosuspend(ddev->dev);
196
197 return count;
198}
199
200
201/**
202 * DOC: power_dpm_force_performance_level
203 *
204 * The amdgpu driver provides a sysfs API for adjusting certain power
205 * related parameters. The file power_dpm_force_performance_level is
206 * used for this. It accepts the following arguments:
207 *
208 * - auto
209 *
210 * - low
211 *
212 * - high
213 *
214 * - manual
215 *
216 * - profile_standard
217 *
218 * - profile_min_sclk
219 *
220 * - profile_min_mclk
221 *
222 * - profile_peak
223 *
224 * auto
225 *
226 * When auto is selected, the driver will attempt to dynamically select
227 * the optimal power profile for current conditions in the driver.
228 *
229 * low
230 *
231 * When low is selected, the clocks are forced to the lowest power state.
232 *
233 * high
234 *
235 * When high is selected, the clocks are forced to the highest power state.
236 *
237 * manual
238 *
239 * When manual is selected, the user can manually adjust which power states
240 * are enabled for each clock domain via the sysfs pp_dpm_mclk, pp_dpm_sclk,
241 * and pp_dpm_pcie files and adjust the power state transition heuristics
242 * via the pp_power_profile_mode sysfs file.
243 *
244 * profile_standard
245 * profile_min_sclk
246 * profile_min_mclk
247 * profile_peak
248 *
249 * When the profiling modes are selected, clock and power gating are
250 * disabled and the clocks are set for different profiling cases. This
251 * mode is recommended for profiling specific work loads where you do
252 * not want clock or power gating for clock fluctuation to interfere
253 * with your results. profile_standard sets the clocks to a fixed clock
254 * level which varies from asic to asic. profile_min_sclk forces the sclk
255 * to the lowest level. profile_min_mclk forces the mclk to the lowest level.
256 * profile_peak sets all clocks (mclk, sclk, pcie) to the highest levels.
257 *
258 */
259
260static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
261 struct device_attribute *attr,
262 char *buf)
263{
264 struct drm_device *ddev = dev_get_drvdata(dev);
265 struct amdgpu_device *adev = drm_to_adev(ddev);
266 enum amd_dpm_forced_level level = 0xff;
267 int ret;
268
269 if (amdgpu_in_reset(adev))
270 return -EPERM;
271 if (adev->in_suspend && !adev->in_runpm)
272 return -EPERM;
273
274 ret = pm_runtime_get_sync(ddev->dev);
275 if (ret < 0) {
276 pm_runtime_put_autosuspend(ddev->dev);
277 return ret;
278 }
279
280 level = amdgpu_dpm_get_performance_level(adev);
281
282 pm_runtime_mark_last_busy(ddev->dev);
283 pm_runtime_put_autosuspend(ddev->dev);
284
285 return sysfs_emit(buf, "%s\n",
286 (level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
287 (level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" :
288 (level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" :
289 (level == AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" :
290 (level == AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD) ? "profile_standard" :
291 (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) ? "profile_min_sclk" :
292 (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) ? "profile_min_mclk" :
293 (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) ? "profile_peak" :
294 (level == AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM) ? "perf_determinism" :
295 "unknown");
296}
297
298static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
299 struct device_attribute *attr,
300 const char *buf,
301 size_t count)
302{
303 struct drm_device *ddev = dev_get_drvdata(dev);
304 struct amdgpu_device *adev = drm_to_adev(ddev);
305 enum amd_dpm_forced_level level;
306 int ret = 0;
307
308 if (amdgpu_in_reset(adev))
309 return -EPERM;
310 if (adev->in_suspend && !adev->in_runpm)
311 return -EPERM;
312
313 if (strncmp("low", buf, strlen("low")) == 0) {
314 level = AMD_DPM_FORCED_LEVEL_LOW;
315 } else if (strncmp("high", buf, strlen("high")) == 0) {
316 level = AMD_DPM_FORCED_LEVEL_HIGH;
317 } else if (strncmp("auto", buf, strlen("auto")) == 0) {
318 level = AMD_DPM_FORCED_LEVEL_AUTO;
319 } else if (strncmp("manual", buf, strlen("manual")) == 0) {
320 level = AMD_DPM_FORCED_LEVEL_MANUAL;
321 } else if (strncmp("profile_exit", buf, strlen("profile_exit")) == 0) {
322 level = AMD_DPM_FORCED_LEVEL_PROFILE_EXIT;
323 } else if (strncmp("profile_standard", buf, strlen("profile_standard")) == 0) {
324 level = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD;
325 } else if (strncmp("profile_min_sclk", buf, strlen("profile_min_sclk")) == 0) {
326 level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK;
327 } else if (strncmp("profile_min_mclk", buf, strlen("profile_min_mclk")) == 0) {
328 level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK;
329 } else if (strncmp("profile_peak", buf, strlen("profile_peak")) == 0) {
330 level = AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
331 } else if (strncmp("perf_determinism", buf, strlen("perf_determinism")) == 0) {
332 level = AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM;
333 } else {
334 return -EINVAL;
335 }
336
337 ret = pm_runtime_get_sync(ddev->dev);
338 if (ret < 0) {
339 pm_runtime_put_autosuspend(ddev->dev);
340 return ret;
341 }
342
343 mutex_lock(&adev->pm.stable_pstate_ctx_lock);
344 if (amdgpu_dpm_force_performance_level(adev, level)) {
345 pm_runtime_mark_last_busy(ddev->dev);
346 pm_runtime_put_autosuspend(ddev->dev);
347 mutex_unlock(&adev->pm.stable_pstate_ctx_lock);
348 return -EINVAL;
349 }
350 /* override whatever a user ctx may have set */
351 adev->pm.stable_pstate_ctx = NULL;
352 mutex_unlock(&adev->pm.stable_pstate_ctx_lock);
353
354 pm_runtime_mark_last_busy(ddev->dev);
355 pm_runtime_put_autosuspend(ddev->dev);
356
357 return count;
358}
359
360static ssize_t amdgpu_get_pp_num_states(struct device *dev,
361 struct device_attribute *attr,
362 char *buf)
363{
364 struct drm_device *ddev = dev_get_drvdata(dev);
365 struct amdgpu_device *adev = drm_to_adev(ddev);
366 struct pp_states_info data;
367 uint32_t i;
368 int buf_len, ret;
369
370 if (amdgpu_in_reset(adev))
371 return -EPERM;
372 if (adev->in_suspend && !adev->in_runpm)
373 return -EPERM;
374
375 ret = pm_runtime_get_sync(ddev->dev);
376 if (ret < 0) {
377 pm_runtime_put_autosuspend(ddev->dev);
378 return ret;
379 }
380
381 if (amdgpu_dpm_get_pp_num_states(adev, &data))
382 memset(&data, 0, sizeof(data));
383
384 pm_runtime_mark_last_busy(ddev->dev);
385 pm_runtime_put_autosuspend(ddev->dev);
386
387 buf_len = sysfs_emit(buf, "states: %d\n", data.nums);
388 for (i = 0; i < data.nums; i++)
389 buf_len += sysfs_emit_at(buf, buf_len, "%d %s\n", i,
390 (data.states[i] == POWER_STATE_TYPE_INTERNAL_BOOT) ? "boot" :
391 (data.states[i] == POWER_STATE_TYPE_BATTERY) ? "battery" :
392 (data.states[i] == POWER_STATE_TYPE_BALANCED) ? "balanced" :
393 (data.states[i] == POWER_STATE_TYPE_PERFORMANCE) ? "performance" : "default");
394
395 return buf_len;
396}
397
398static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
399 struct device_attribute *attr,
400 char *buf)
401{
402 struct drm_device *ddev = dev_get_drvdata(dev);
403 struct amdgpu_device *adev = drm_to_adev(ddev);
404 struct pp_states_info data = {0};
405 enum amd_pm_state_type pm = 0;
406 int i = 0, ret = 0;
407
408 if (amdgpu_in_reset(adev))
409 return -EPERM;
410 if (adev->in_suspend && !adev->in_runpm)
411 return -EPERM;
412
413 ret = pm_runtime_get_sync(ddev->dev);
414 if (ret < 0) {
415 pm_runtime_put_autosuspend(ddev->dev);
416 return ret;
417 }
418
419 amdgpu_dpm_get_current_power_state(adev, &pm);
420
421 ret = amdgpu_dpm_get_pp_num_states(adev, &data);
422
423 pm_runtime_mark_last_busy(ddev->dev);
424 pm_runtime_put_autosuspend(ddev->dev);
425
426 if (ret)
427 return ret;
428
429 for (i = 0; i < data.nums; i++) {
430 if (pm == data.states[i])
431 break;
432 }
433
434 if (i == data.nums)
435 i = -EINVAL;
436
437 return sysfs_emit(buf, "%d\n", i);
438}
439
440static ssize_t amdgpu_get_pp_force_state(struct device *dev,
441 struct device_attribute *attr,
442 char *buf)
443{
444 struct drm_device *ddev = dev_get_drvdata(dev);
445 struct amdgpu_device *adev = drm_to_adev(ddev);
446
447 if (amdgpu_in_reset(adev))
448 return -EPERM;
449 if (adev->in_suspend && !adev->in_runpm)
450 return -EPERM;
451
452 if (adev->pm.pp_force_state_enabled)
453 return amdgpu_get_pp_cur_state(dev, attr, buf);
454 else
455 return sysfs_emit(buf, "\n");
456}
457
458static ssize_t amdgpu_set_pp_force_state(struct device *dev,
459 struct device_attribute *attr,
460 const char *buf,
461 size_t count)
462{
463 struct drm_device *ddev = dev_get_drvdata(dev);
464 struct amdgpu_device *adev = drm_to_adev(ddev);
465 enum amd_pm_state_type state = 0;
466 struct pp_states_info data;
467 unsigned long idx;
468 int ret;
469
470 if (amdgpu_in_reset(adev))
471 return -EPERM;
472 if (adev->in_suspend && !adev->in_runpm)
473 return -EPERM;
474
475 adev->pm.pp_force_state_enabled = false;
476
477 if (strlen(buf) == 1)
478 return count;
479
480 ret = kstrtoul(buf, 0, &idx);
481 if (ret || idx >= ARRAY_SIZE(data.states))
482 return -EINVAL;
483
484 idx = array_index_nospec(idx, ARRAY_SIZE(data.states));
485
486 ret = pm_runtime_get_sync(ddev->dev);
487 if (ret < 0) {
488 pm_runtime_put_autosuspend(ddev->dev);
489 return ret;
490 }
491
492 ret = amdgpu_dpm_get_pp_num_states(adev, &data);
493 if (ret)
494 goto err_out;
495
496 state = data.states[idx];
497
498 /* only set user selected power states */
499 if (state != POWER_STATE_TYPE_INTERNAL_BOOT &&
500 state != POWER_STATE_TYPE_DEFAULT) {
501 ret = amdgpu_dpm_dispatch_task(adev,
502 AMD_PP_TASK_ENABLE_USER_STATE, &state);
503 if (ret)
504 goto err_out;
505
506 adev->pm.pp_force_state_enabled = true;
507 }
508
509 pm_runtime_mark_last_busy(ddev->dev);
510 pm_runtime_put_autosuspend(ddev->dev);
511
512 return count;
513
514err_out:
515 pm_runtime_mark_last_busy(ddev->dev);
516 pm_runtime_put_autosuspend(ddev->dev);
517 return ret;
518}
519
520/**
521 * DOC: pp_table
522 *
523 * The amdgpu driver provides a sysfs API for uploading new powerplay
524 * tables. The file pp_table is used for this. Reading the file
525 * will dump the current power play table. Writing to the file
526 * will attempt to upload a new powerplay table and re-initialize
527 * powerplay using that new table.
528 *
529 */
530
531static ssize_t amdgpu_get_pp_table(struct device *dev,
532 struct device_attribute *attr,
533 char *buf)
534{
535 struct drm_device *ddev = dev_get_drvdata(dev);
536 struct amdgpu_device *adev = drm_to_adev(ddev);
537 char *table = NULL;
538 int size, ret;
539
540 if (amdgpu_in_reset(adev))
541 return -EPERM;
542 if (adev->in_suspend && !adev->in_runpm)
543 return -EPERM;
544
545 ret = pm_runtime_get_sync(ddev->dev);
546 if (ret < 0) {
547 pm_runtime_put_autosuspend(ddev->dev);
548 return ret;
549 }
550
551 size = amdgpu_dpm_get_pp_table(adev, &table);
552
553 pm_runtime_mark_last_busy(ddev->dev);
554 pm_runtime_put_autosuspend(ddev->dev);
555
556 if (size <= 0)
557 return size;
558
559 if (size >= PAGE_SIZE)
560 size = PAGE_SIZE - 1;
561
562 memcpy(buf, table, size);
563
564 return size;
565}
566
567static ssize_t amdgpu_set_pp_table(struct device *dev,
568 struct device_attribute *attr,
569 const char *buf,
570 size_t count)
571{
572 struct drm_device *ddev = dev_get_drvdata(dev);
573 struct amdgpu_device *adev = drm_to_adev(ddev);
574 int ret = 0;
575
576 if (amdgpu_in_reset(adev))
577 return -EPERM;
578 if (adev->in_suspend && !adev->in_runpm)
579 return -EPERM;
580
581 ret = pm_runtime_get_sync(ddev->dev);
582 if (ret < 0) {
583 pm_runtime_put_autosuspend(ddev->dev);
584 return ret;
585 }
586
587 ret = amdgpu_dpm_set_pp_table(adev, buf, count);
588
589 pm_runtime_mark_last_busy(ddev->dev);
590 pm_runtime_put_autosuspend(ddev->dev);
591
592 if (ret)
593 return ret;
594
595 return count;
596}
597
598/**
599 * DOC: pp_od_clk_voltage
600 *
601 * The amdgpu driver provides a sysfs API for adjusting the clocks and voltages
602 * in each power level within a power state. The pp_od_clk_voltage is used for
603 * this.
604 *
605 * Note that the actual memory controller clock rate are exposed, not
606 * the effective memory clock of the DRAMs. To translate it, use the
607 * following formula:
608 *
609 * Clock conversion (Mhz):
610 *
611 * HBM: effective_memory_clock = memory_controller_clock * 1
612 *
613 * G5: effective_memory_clock = memory_controller_clock * 1
614 *
615 * G6: effective_memory_clock = memory_controller_clock * 2
616 *
617 * DRAM data rate (MT/s):
618 *
619 * HBM: effective_memory_clock * 2 = data_rate
620 *
621 * G5: effective_memory_clock * 4 = data_rate
622 *
623 * G6: effective_memory_clock * 8 = data_rate
624 *
625 * Bandwidth (MB/s):
626 *
627 * data_rate * vram_bit_width / 8 = memory_bandwidth
628 *
629 * Some examples:
630 *
631 * G5 on RX460:
632 *
633 * memory_controller_clock = 1750 Mhz
634 *
635 * effective_memory_clock = 1750 Mhz * 1 = 1750 Mhz
636 *
637 * data rate = 1750 * 4 = 7000 MT/s
638 *
639 * memory_bandwidth = 7000 * 128 bits / 8 = 112000 MB/s
640 *
641 * G6 on RX5700:
642 *
643 * memory_controller_clock = 875 Mhz
644 *
645 * effective_memory_clock = 875 Mhz * 2 = 1750 Mhz
646 *
647 * data rate = 1750 * 8 = 14000 MT/s
648 *
649 * memory_bandwidth = 14000 * 256 bits / 8 = 448000 MB/s
650 *
651 * < For Vega10 and previous ASICs >
652 *
653 * Reading the file will display:
654 *
655 * - a list of engine clock levels and voltages labeled OD_SCLK
656 *
657 * - a list of memory clock levels and voltages labeled OD_MCLK
658 *
659 * - a list of valid ranges for sclk, mclk, and voltage labeled OD_RANGE
660 *
661 * To manually adjust these settings, first select manual using
662 * power_dpm_force_performance_level. Enter a new value for each
663 * level by writing a string that contains "s/m level clock voltage" to
664 * the file. E.g., "s 1 500 820" will update sclk level 1 to be 500 MHz
665 * at 820 mV; "m 0 350 810" will update mclk level 0 to be 350 MHz at
666 * 810 mV. When you have edited all of the states as needed, write
667 * "c" (commit) to the file to commit your changes. If you want to reset to the
668 * default power levels, write "r" (reset) to the file to reset them.
669 *
670 *
671 * < For Vega20 and newer ASICs >
672 *
673 * Reading the file will display:
674 *
675 * - minimum and maximum engine clock labeled OD_SCLK
676 *
677 * - minimum(not available for Vega20 and Navi1x) and maximum memory
678 * clock labeled OD_MCLK
679 *
680 * - three <frequency, voltage> points labeled OD_VDDC_CURVE.
681 * They can be used to calibrate the sclk voltage curve. This is
682 * available for Vega20 and NV1X.
683 *
684 * - voltage offset(in mV) applied on target voltage calculation.
685 * This is available for Sienna Cichlid, Navy Flounder, Dimgrey
686 * Cavefish and some later SMU13 ASICs. For these ASICs, the target
687 * voltage calculation can be illustrated by "voltage = voltage
688 * calculated from v/f curve + overdrive vddgfx offset"
689 *
690 * - a list of valid ranges for sclk, mclk, voltage curve points
691 * or voltage offset labeled OD_RANGE
692 *
693 * < For APUs >
694 *
695 * Reading the file will display:
696 *
697 * - minimum and maximum engine clock labeled OD_SCLK
698 *
699 * - a list of valid ranges for sclk labeled OD_RANGE
700 *
701 * < For VanGogh >
702 *
703 * Reading the file will display:
704 *
705 * - minimum and maximum engine clock labeled OD_SCLK
706 * - minimum and maximum core clocks labeled OD_CCLK
707 *
708 * - a list of valid ranges for sclk and cclk labeled OD_RANGE
709 *
710 * To manually adjust these settings:
711 *
712 * - First select manual using power_dpm_force_performance_level
713 *
714 * - For clock frequency setting, enter a new value by writing a
715 * string that contains "s/m index clock" to the file. The index
716 * should be 0 if to set minimum clock. And 1 if to set maximum
717 * clock. E.g., "s 0 500" will update minimum sclk to be 500 MHz.
718 * "m 1 800" will update maximum mclk to be 800Mhz. For core
719 * clocks on VanGogh, the string contains "p core index clock".
720 * E.g., "p 2 0 800" would set the minimum core clock on core
721 * 2 to 800Mhz.
722 *
723 * For sclk voltage curve supported by Vega20 and NV1X, enter the new
724 * values by writing a string that contains "vc point clock voltage"
725 * to the file. The points are indexed by 0, 1 and 2. E.g., "vc 0 300
726 * 600" will update point1 with clock set as 300Mhz and voltage as 600mV.
727 * "vc 2 1000 1000" will update point3 with clock set as 1000Mhz and
728 * voltage 1000mV.
729 *
730 * For voltage offset supported by Sienna Cichlid, Navy Flounder, Dimgrey
731 * Cavefish and some later SMU13 ASICs, enter the new value by writing a
732 * string that contains "vo offset". E.g., "vo -10" will update the extra
733 * voltage offset applied to the whole v/f curve line as -10mv.
734 *
735 * - When you have edited all of the states as needed, write "c" (commit)
736 * to the file to commit your changes
737 *
738 * - If you want to reset to the default power levels, write "r" (reset)
739 * to the file to reset them
740 *
741 */
742
743static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
744 struct device_attribute *attr,
745 const char *buf,
746 size_t count)
747{
748 struct drm_device *ddev = dev_get_drvdata(dev);
749 struct amdgpu_device *adev = drm_to_adev(ddev);
750 int ret;
751 uint32_t parameter_size = 0;
752 long parameter[64];
753 char buf_cpy[128];
754 char *tmp_str;
755 char *sub_str;
756 const char delimiter[3] = {' ', '\n', '\0'};
757 uint32_t type;
758
759 if (amdgpu_in_reset(adev))
760 return -EPERM;
761 if (adev->in_suspend && !adev->in_runpm)
762 return -EPERM;
763
764 if (count > 127 || count == 0)
765 return -EINVAL;
766
767 if (*buf == 's')
768 type = PP_OD_EDIT_SCLK_VDDC_TABLE;
769 else if (*buf == 'p')
770 type = PP_OD_EDIT_CCLK_VDDC_TABLE;
771 else if (*buf == 'm')
772 type = PP_OD_EDIT_MCLK_VDDC_TABLE;
773 else if (*buf == 'r')
774 type = PP_OD_RESTORE_DEFAULT_TABLE;
775 else if (*buf == 'c')
776 type = PP_OD_COMMIT_DPM_TABLE;
777 else if (!strncmp(buf, "vc", 2))
778 type = PP_OD_EDIT_VDDC_CURVE;
779 else if (!strncmp(buf, "vo", 2))
780 type = PP_OD_EDIT_VDDGFX_OFFSET;
781 else
782 return -EINVAL;
783
784 memcpy(buf_cpy, buf, count);
785 buf_cpy[count] = 0;
786
787 tmp_str = buf_cpy;
788
789 if ((type == PP_OD_EDIT_VDDC_CURVE) ||
790 (type == PP_OD_EDIT_VDDGFX_OFFSET))
791 tmp_str++;
792 while (isspace(*++tmp_str));
793
794 while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
795 if (strlen(sub_str) == 0)
796 continue;
797 ret = kstrtol(sub_str, 0, ¶meter[parameter_size]);
798 if (ret)
799 return -EINVAL;
800 parameter_size++;
801
802 if (!tmp_str)
803 break;
804
805 while (isspace(*tmp_str))
806 tmp_str++;
807 }
808
809 ret = pm_runtime_get_sync(ddev->dev);
810 if (ret < 0) {
811 pm_runtime_put_autosuspend(ddev->dev);
812 return ret;
813 }
814
815 if (amdgpu_dpm_set_fine_grain_clk_vol(adev,
816 type,
817 parameter,
818 parameter_size))
819 goto err_out;
820
821 if (amdgpu_dpm_odn_edit_dpm_table(adev, type,
822 parameter, parameter_size))
823 goto err_out;
824
825 if (type == PP_OD_COMMIT_DPM_TABLE) {
826 if (amdgpu_dpm_dispatch_task(adev,
827 AMD_PP_TASK_READJUST_POWER_STATE,
828 NULL))
829 goto err_out;
830 }
831
832 pm_runtime_mark_last_busy(ddev->dev);
833 pm_runtime_put_autosuspend(ddev->dev);
834
835 return count;
836
837err_out:
838 pm_runtime_mark_last_busy(ddev->dev);
839 pm_runtime_put_autosuspend(ddev->dev);
840 return -EINVAL;
841}
842
843static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev,
844 struct device_attribute *attr,
845 char *buf)
846{
847 struct drm_device *ddev = dev_get_drvdata(dev);
848 struct amdgpu_device *adev = drm_to_adev(ddev);
849 int size = 0;
850 int ret;
851 enum pp_clock_type od_clocks[6] = {
852 OD_SCLK,
853 OD_MCLK,
854 OD_VDDC_CURVE,
855 OD_RANGE,
856 OD_VDDGFX_OFFSET,
857 OD_CCLK,
858 };
859 uint clk_index;
860
861 if (amdgpu_in_reset(adev))
862 return -EPERM;
863 if (adev->in_suspend && !adev->in_runpm)
864 return -EPERM;
865
866 ret = pm_runtime_get_sync(ddev->dev);
867 if (ret < 0) {
868 pm_runtime_put_autosuspend(ddev->dev);
869 return ret;
870 }
871
872 for (clk_index = 0 ; clk_index < 6 ; clk_index++) {
873 ret = amdgpu_dpm_emit_clock_levels(adev, od_clocks[clk_index], buf, &size);
874 if (ret)
875 break;
876 }
877 if (ret == -ENOENT) {
878 size = amdgpu_dpm_print_clock_levels(adev, OD_SCLK, buf);
879 size += amdgpu_dpm_print_clock_levels(adev, OD_MCLK, buf + size);
880 size += amdgpu_dpm_print_clock_levels(adev, OD_VDDC_CURVE, buf + size);
881 size += amdgpu_dpm_print_clock_levels(adev, OD_VDDGFX_OFFSET, buf + size);
882 size += amdgpu_dpm_print_clock_levels(adev, OD_RANGE, buf + size);
883 size += amdgpu_dpm_print_clock_levels(adev, OD_CCLK, buf + size);
884 }
885
886 if (size == 0)
887 size = sysfs_emit(buf, "\n");
888
889 pm_runtime_mark_last_busy(ddev->dev);
890 pm_runtime_put_autosuspend(ddev->dev);
891
892 return size;
893}
894
895/**
896 * DOC: pp_features
897 *
898 * The amdgpu driver provides a sysfs API for adjusting what powerplay
899 * features to be enabled. The file pp_features is used for this. And
900 * this is only available for Vega10 and later dGPUs.
901 *
902 * Reading back the file will show you the followings:
903 * - Current ppfeature masks
904 * - List of the all supported powerplay features with their naming,
905 * bitmasks and enablement status('Y'/'N' means "enabled"/"disabled").
906 *
907 * To manually enable or disable a specific feature, just set or clear
908 * the corresponding bit from original ppfeature masks and input the
909 * new ppfeature masks.
910 */
911static ssize_t amdgpu_set_pp_features(struct device *dev,
912 struct device_attribute *attr,
913 const char *buf,
914 size_t count)
915{
916 struct drm_device *ddev = dev_get_drvdata(dev);
917 struct amdgpu_device *adev = drm_to_adev(ddev);
918 uint64_t featuremask;
919 int ret;
920
921 if (amdgpu_in_reset(adev))
922 return -EPERM;
923 if (adev->in_suspend && !adev->in_runpm)
924 return -EPERM;
925
926 ret = kstrtou64(buf, 0, &featuremask);
927 if (ret)
928 return -EINVAL;
929
930 ret = pm_runtime_get_sync(ddev->dev);
931 if (ret < 0) {
932 pm_runtime_put_autosuspend(ddev->dev);
933 return ret;
934 }
935
936 ret = amdgpu_dpm_set_ppfeature_status(adev, featuremask);
937
938 pm_runtime_mark_last_busy(ddev->dev);
939 pm_runtime_put_autosuspend(ddev->dev);
940
941 if (ret)
942 return -EINVAL;
943
944 return count;
945}
946
947static ssize_t amdgpu_get_pp_features(struct device *dev,
948 struct device_attribute *attr,
949 char *buf)
950{
951 struct drm_device *ddev = dev_get_drvdata(dev);
952 struct amdgpu_device *adev = drm_to_adev(ddev);
953 ssize_t size;
954 int ret;
955
956 if (amdgpu_in_reset(adev))
957 return -EPERM;
958 if (adev->in_suspend && !adev->in_runpm)
959 return -EPERM;
960
961 ret = pm_runtime_get_sync(ddev->dev);
962 if (ret < 0) {
963 pm_runtime_put_autosuspend(ddev->dev);
964 return ret;
965 }
966
967 size = amdgpu_dpm_get_ppfeature_status(adev, buf);
968 if (size <= 0)
969 size = sysfs_emit(buf, "\n");
970
971 pm_runtime_mark_last_busy(ddev->dev);
972 pm_runtime_put_autosuspend(ddev->dev);
973
974 return size;
975}
976
977/**
978 * DOC: pp_dpm_sclk pp_dpm_mclk pp_dpm_socclk pp_dpm_fclk pp_dpm_dcefclk pp_dpm_pcie
979 *
980 * The amdgpu driver provides a sysfs API for adjusting what power levels
981 * are enabled for a given power state. The files pp_dpm_sclk, pp_dpm_mclk,
982 * pp_dpm_socclk, pp_dpm_fclk, pp_dpm_dcefclk and pp_dpm_pcie are used for
983 * this.
984 *
985 * pp_dpm_socclk and pp_dpm_dcefclk interfaces are only available for
986 * Vega10 and later ASICs.
987 * pp_dpm_fclk interface is only available for Vega20 and later ASICs.
988 *
989 * Reading back the files will show you the available power levels within
990 * the power state and the clock information for those levels. If deep sleep is
991 * applied to a clock, the level will be denoted by a special level 'S:'
992 * E.g., ::
993 *
994 * S: 19Mhz *
995 * 0: 615Mhz
996 * 1: 800Mhz
997 * 2: 888Mhz
998 * 3: 1000Mhz
999 *
1000 *
1001 * To manually adjust these states, first select manual using
1002 * power_dpm_force_performance_level.
1003 * Secondly, enter a new value for each level by inputing a string that
1004 * contains " echo xx xx xx > pp_dpm_sclk/mclk/pcie"
1005 * E.g.,
1006 *
1007 * .. code-block:: bash
1008 *
1009 * echo "4 5 6" > pp_dpm_sclk
1010 *
1011 * will enable sclk levels 4, 5, and 6.
1012 *
1013 * NOTE: change to the dcefclk max dpm level is not supported now
1014 */
1015
1016static ssize_t amdgpu_get_pp_dpm_clock(struct device *dev,
1017 enum pp_clock_type type,
1018 char *buf)
1019{
1020 struct drm_device *ddev = dev_get_drvdata(dev);
1021 struct amdgpu_device *adev = drm_to_adev(ddev);
1022 int size = 0;
1023 int ret = 0;
1024
1025 if (amdgpu_in_reset(adev))
1026 return -EPERM;
1027 if (adev->in_suspend && !adev->in_runpm)
1028 return -EPERM;
1029
1030 ret = pm_runtime_get_sync(ddev->dev);
1031 if (ret < 0) {
1032 pm_runtime_put_autosuspend(ddev->dev);
1033 return ret;
1034 }
1035
1036 ret = amdgpu_dpm_emit_clock_levels(adev, type, buf, &size);
1037 if (ret == -ENOENT)
1038 size = amdgpu_dpm_print_clock_levels(adev, type, buf);
1039
1040 if (size == 0)
1041 size = sysfs_emit(buf, "\n");
1042
1043 pm_runtime_mark_last_busy(ddev->dev);
1044 pm_runtime_put_autosuspend(ddev->dev);
1045
1046 return size;
1047}
1048
1049/*
1050 * Worst case: 32 bits individually specified, in octal at 12 characters
1051 * per line (+1 for \n).
1052 */
1053#define AMDGPU_MASK_BUF_MAX (32 * 13)
1054
1055static ssize_t amdgpu_read_mask(const char *buf, size_t count, uint32_t *mask)
1056{
1057 int ret;
1058 unsigned long level;
1059 char *sub_str = NULL;
1060 char *tmp;
1061 char buf_cpy[AMDGPU_MASK_BUF_MAX + 1];
1062 const char delimiter[3] = {' ', '\n', '\0'};
1063 size_t bytes;
1064
1065 *mask = 0;
1066
1067 bytes = min(count, sizeof(buf_cpy) - 1);
1068 memcpy(buf_cpy, buf, bytes);
1069 buf_cpy[bytes] = '\0';
1070 tmp = buf_cpy;
1071 while ((sub_str = strsep(&tmp, delimiter)) != NULL) {
1072 if (strlen(sub_str)) {
1073 ret = kstrtoul(sub_str, 0, &level);
1074 if (ret || level > 31)
1075 return -EINVAL;
1076 *mask |= 1 << level;
1077 } else
1078 break;
1079 }
1080
1081 return 0;
1082}
1083
1084static ssize_t amdgpu_set_pp_dpm_clock(struct device *dev,
1085 enum pp_clock_type type,
1086 const char *buf,
1087 size_t count)
1088{
1089 struct drm_device *ddev = dev_get_drvdata(dev);
1090 struct amdgpu_device *adev = drm_to_adev(ddev);
1091 int ret;
1092 uint32_t mask = 0;
1093
1094 if (amdgpu_in_reset(adev))
1095 return -EPERM;
1096 if (adev->in_suspend && !adev->in_runpm)
1097 return -EPERM;
1098
1099 ret = amdgpu_read_mask(buf, count, &mask);
1100 if (ret)
1101 return ret;
1102
1103 ret = pm_runtime_get_sync(ddev->dev);
1104 if (ret < 0) {
1105 pm_runtime_put_autosuspend(ddev->dev);
1106 return ret;
1107 }
1108
1109 ret = amdgpu_dpm_force_clock_level(adev, type, mask);
1110
1111 pm_runtime_mark_last_busy(ddev->dev);
1112 pm_runtime_put_autosuspend(ddev->dev);
1113
1114 if (ret)
1115 return -EINVAL;
1116
1117 return count;
1118}
1119
1120static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
1121 struct device_attribute *attr,
1122 char *buf)
1123{
1124 return amdgpu_get_pp_dpm_clock(dev, PP_SCLK, buf);
1125}
1126
1127static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
1128 struct device_attribute *attr,
1129 const char *buf,
1130 size_t count)
1131{
1132 return amdgpu_set_pp_dpm_clock(dev, PP_SCLK, buf, count);
1133}
1134
1135static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
1136 struct device_attribute *attr,
1137 char *buf)
1138{
1139 return amdgpu_get_pp_dpm_clock(dev, PP_MCLK, buf);
1140}
1141
1142static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
1143 struct device_attribute *attr,
1144 const char *buf,
1145 size_t count)
1146{
1147 return amdgpu_set_pp_dpm_clock(dev, PP_MCLK, buf, count);
1148}
1149
1150static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev,
1151 struct device_attribute *attr,
1152 char *buf)
1153{
1154 return amdgpu_get_pp_dpm_clock(dev, PP_SOCCLK, buf);
1155}
1156
1157static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
1158 struct device_attribute *attr,
1159 const char *buf,
1160 size_t count)
1161{
1162 return amdgpu_set_pp_dpm_clock(dev, PP_SOCCLK, buf, count);
1163}
1164
1165static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev,
1166 struct device_attribute *attr,
1167 char *buf)
1168{
1169 return amdgpu_get_pp_dpm_clock(dev, PP_FCLK, buf);
1170}
1171
1172static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
1173 struct device_attribute *attr,
1174 const char *buf,
1175 size_t count)
1176{
1177 return amdgpu_set_pp_dpm_clock(dev, PP_FCLK, buf, count);
1178}
1179
1180static ssize_t amdgpu_get_pp_dpm_vclk(struct device *dev,
1181 struct device_attribute *attr,
1182 char *buf)
1183{
1184 return amdgpu_get_pp_dpm_clock(dev, PP_VCLK, buf);
1185}
1186
1187static ssize_t amdgpu_set_pp_dpm_vclk(struct device *dev,
1188 struct device_attribute *attr,
1189 const char *buf,
1190 size_t count)
1191{
1192 return amdgpu_set_pp_dpm_clock(dev, PP_VCLK, buf, count);
1193}
1194
1195static ssize_t amdgpu_get_pp_dpm_vclk1(struct device *dev,
1196 struct device_attribute *attr,
1197 char *buf)
1198{
1199 return amdgpu_get_pp_dpm_clock(dev, PP_VCLK1, buf);
1200}
1201
1202static ssize_t amdgpu_set_pp_dpm_vclk1(struct device *dev,
1203 struct device_attribute *attr,
1204 const char *buf,
1205 size_t count)
1206{
1207 return amdgpu_set_pp_dpm_clock(dev, PP_VCLK1, buf, count);
1208}
1209
1210static ssize_t amdgpu_get_pp_dpm_dclk(struct device *dev,
1211 struct device_attribute *attr,
1212 char *buf)
1213{
1214 return amdgpu_get_pp_dpm_clock(dev, PP_DCLK, buf);
1215}
1216
1217static ssize_t amdgpu_set_pp_dpm_dclk(struct device *dev,
1218 struct device_attribute *attr,
1219 const char *buf,
1220 size_t count)
1221{
1222 return amdgpu_set_pp_dpm_clock(dev, PP_DCLK, buf, count);
1223}
1224
1225static ssize_t amdgpu_get_pp_dpm_dclk1(struct device *dev,
1226 struct device_attribute *attr,
1227 char *buf)
1228{
1229 return amdgpu_get_pp_dpm_clock(dev, PP_DCLK1, buf);
1230}
1231
1232static ssize_t amdgpu_set_pp_dpm_dclk1(struct device *dev,
1233 struct device_attribute *attr,
1234 const char *buf,
1235 size_t count)
1236{
1237 return amdgpu_set_pp_dpm_clock(dev, PP_DCLK1, buf, count);
1238}
1239
1240static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev,
1241 struct device_attribute *attr,
1242 char *buf)
1243{
1244 return amdgpu_get_pp_dpm_clock(dev, PP_DCEFCLK, buf);
1245}
1246
1247static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
1248 struct device_attribute *attr,
1249 const char *buf,
1250 size_t count)
1251{
1252 return amdgpu_set_pp_dpm_clock(dev, PP_DCEFCLK, buf, count);
1253}
1254
1255static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev,
1256 struct device_attribute *attr,
1257 char *buf)
1258{
1259 return amdgpu_get_pp_dpm_clock(dev, PP_PCIE, buf);
1260}
1261
1262static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
1263 struct device_attribute *attr,
1264 const char *buf,
1265 size_t count)
1266{
1267 return amdgpu_set_pp_dpm_clock(dev, PP_PCIE, buf, count);
1268}
1269
1270static ssize_t amdgpu_get_pp_sclk_od(struct device *dev,
1271 struct device_attribute *attr,
1272 char *buf)
1273{
1274 struct drm_device *ddev = dev_get_drvdata(dev);
1275 struct amdgpu_device *adev = drm_to_adev(ddev);
1276 uint32_t value = 0;
1277 int ret;
1278
1279 if (amdgpu_in_reset(adev))
1280 return -EPERM;
1281 if (adev->in_suspend && !adev->in_runpm)
1282 return -EPERM;
1283
1284 ret = pm_runtime_get_sync(ddev->dev);
1285 if (ret < 0) {
1286 pm_runtime_put_autosuspend(ddev->dev);
1287 return ret;
1288 }
1289
1290 value = amdgpu_dpm_get_sclk_od(adev);
1291
1292 pm_runtime_mark_last_busy(ddev->dev);
1293 pm_runtime_put_autosuspend(ddev->dev);
1294
1295 return sysfs_emit(buf, "%d\n", value);
1296}
1297
1298static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
1299 struct device_attribute *attr,
1300 const char *buf,
1301 size_t count)
1302{
1303 struct drm_device *ddev = dev_get_drvdata(dev);
1304 struct amdgpu_device *adev = drm_to_adev(ddev);
1305 int ret;
1306 long int value;
1307
1308 if (amdgpu_in_reset(adev))
1309 return -EPERM;
1310 if (adev->in_suspend && !adev->in_runpm)
1311 return -EPERM;
1312
1313 ret = kstrtol(buf, 0, &value);
1314
1315 if (ret)
1316 return -EINVAL;
1317
1318 ret = pm_runtime_get_sync(ddev->dev);
1319 if (ret < 0) {
1320 pm_runtime_put_autosuspend(ddev->dev);
1321 return ret;
1322 }
1323
1324 amdgpu_dpm_set_sclk_od(adev, (uint32_t)value);
1325
1326 pm_runtime_mark_last_busy(ddev->dev);
1327 pm_runtime_put_autosuspend(ddev->dev);
1328
1329 return count;
1330}
1331
1332static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
1333 struct device_attribute *attr,
1334 char *buf)
1335{
1336 struct drm_device *ddev = dev_get_drvdata(dev);
1337 struct amdgpu_device *adev = drm_to_adev(ddev);
1338 uint32_t value = 0;
1339 int ret;
1340
1341 if (amdgpu_in_reset(adev))
1342 return -EPERM;
1343 if (adev->in_suspend && !adev->in_runpm)
1344 return -EPERM;
1345
1346 ret = pm_runtime_get_sync(ddev->dev);
1347 if (ret < 0) {
1348 pm_runtime_put_autosuspend(ddev->dev);
1349 return ret;
1350 }
1351
1352 value = amdgpu_dpm_get_mclk_od(adev);
1353
1354 pm_runtime_mark_last_busy(ddev->dev);
1355 pm_runtime_put_autosuspend(ddev->dev);
1356
1357 return sysfs_emit(buf, "%d\n", value);
1358}
1359
1360static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
1361 struct device_attribute *attr,
1362 const char *buf,
1363 size_t count)
1364{
1365 struct drm_device *ddev = dev_get_drvdata(dev);
1366 struct amdgpu_device *adev = drm_to_adev(ddev);
1367 int ret;
1368 long int value;
1369
1370 if (amdgpu_in_reset(adev))
1371 return -EPERM;
1372 if (adev->in_suspend && !adev->in_runpm)
1373 return -EPERM;
1374
1375 ret = kstrtol(buf, 0, &value);
1376
1377 if (ret)
1378 return -EINVAL;
1379
1380 ret = pm_runtime_get_sync(ddev->dev);
1381 if (ret < 0) {
1382 pm_runtime_put_autosuspend(ddev->dev);
1383 return ret;
1384 }
1385
1386 amdgpu_dpm_set_mclk_od(adev, (uint32_t)value);
1387
1388 pm_runtime_mark_last_busy(ddev->dev);
1389 pm_runtime_put_autosuspend(ddev->dev);
1390
1391 return count;
1392}
1393
1394/**
1395 * DOC: pp_power_profile_mode
1396 *
1397 * The amdgpu driver provides a sysfs API for adjusting the heuristics
1398 * related to switching between power levels in a power state. The file
1399 * pp_power_profile_mode is used for this.
1400 *
1401 * Reading this file outputs a list of all of the predefined power profiles
1402 * and the relevant heuristics settings for that profile.
1403 *
1404 * To select a profile or create a custom profile, first select manual using
1405 * power_dpm_force_performance_level. Writing the number of a predefined
1406 * profile to pp_power_profile_mode will enable those heuristics. To
1407 * create a custom set of heuristics, write a string of numbers to the file
1408 * starting with the number of the custom profile along with a setting
1409 * for each heuristic parameter. Due to differences across asic families
1410 * the heuristic parameters vary from family to family.
1411 *
1412 */
1413
1414static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
1415 struct device_attribute *attr,
1416 char *buf)
1417{
1418 struct drm_device *ddev = dev_get_drvdata(dev);
1419 struct amdgpu_device *adev = drm_to_adev(ddev);
1420 ssize_t size;
1421 int ret;
1422
1423 if (amdgpu_in_reset(adev))
1424 return -EPERM;
1425 if (adev->in_suspend && !adev->in_runpm)
1426 return -EPERM;
1427
1428 ret = pm_runtime_get_sync(ddev->dev);
1429 if (ret < 0) {
1430 pm_runtime_put_autosuspend(ddev->dev);
1431 return ret;
1432 }
1433
1434 size = amdgpu_dpm_get_power_profile_mode(adev, buf);
1435 if (size <= 0)
1436 size = sysfs_emit(buf, "\n");
1437
1438 pm_runtime_mark_last_busy(ddev->dev);
1439 pm_runtime_put_autosuspend(ddev->dev);
1440
1441 return size;
1442}
1443
1444
1445static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
1446 struct device_attribute *attr,
1447 const char *buf,
1448 size_t count)
1449{
1450 int ret;
1451 struct drm_device *ddev = dev_get_drvdata(dev);
1452 struct amdgpu_device *adev = drm_to_adev(ddev);
1453 uint32_t parameter_size = 0;
1454 long parameter[64];
1455 char *sub_str, buf_cpy[128];
1456 char *tmp_str;
1457 uint32_t i = 0;
1458 char tmp[2];
1459 long int profile_mode = 0;
1460 const char delimiter[3] = {' ', '\n', '\0'};
1461
1462 if (amdgpu_in_reset(adev))
1463 return -EPERM;
1464 if (adev->in_suspend && !adev->in_runpm)
1465 return -EPERM;
1466
1467 tmp[0] = *(buf);
1468 tmp[1] = '\0';
1469 ret = kstrtol(tmp, 0, &profile_mode);
1470 if (ret)
1471 return -EINVAL;
1472
1473 if (profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) {
1474 if (count < 2 || count > 127)
1475 return -EINVAL;
1476 while (isspace(*++buf))
1477 i++;
1478 memcpy(buf_cpy, buf, count-i);
1479 tmp_str = buf_cpy;
1480 while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
1481 if (strlen(sub_str) == 0)
1482 continue;
1483 ret = kstrtol(sub_str, 0, ¶meter[parameter_size]);
1484 if (ret)
1485 return -EINVAL;
1486 parameter_size++;
1487 while (isspace(*tmp_str))
1488 tmp_str++;
1489 }
1490 }
1491 parameter[parameter_size] = profile_mode;
1492
1493 ret = pm_runtime_get_sync(ddev->dev);
1494 if (ret < 0) {
1495 pm_runtime_put_autosuspend(ddev->dev);
1496 return ret;
1497 }
1498
1499 ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size);
1500
1501 pm_runtime_mark_last_busy(ddev->dev);
1502 pm_runtime_put_autosuspend(ddev->dev);
1503
1504 if (!ret)
1505 return count;
1506
1507 return -EINVAL;
1508}
1509
1510static int amdgpu_hwmon_get_sensor_generic(struct amdgpu_device *adev,
1511 enum amd_pp_sensors sensor,
1512 void *query)
1513{
1514 int r, size = sizeof(uint32_t);
1515
1516 if (amdgpu_in_reset(adev))
1517 return -EPERM;
1518 if (adev->in_suspend && !adev->in_runpm)
1519 return -EPERM;
1520
1521 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
1522 if (r < 0) {
1523 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
1524 return r;
1525 }
1526
1527 /* get the sensor value */
1528 r = amdgpu_dpm_read_sensor(adev, sensor, query, &size);
1529
1530 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
1531 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
1532
1533 return r;
1534}
1535
1536/**
1537 * DOC: gpu_busy_percent
1538 *
1539 * The amdgpu driver provides a sysfs API for reading how busy the GPU
1540 * is as a percentage. The file gpu_busy_percent is used for this.
1541 * The SMU firmware computes a percentage of load based on the
1542 * aggregate activity level in the IP cores.
1543 */
1544static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev,
1545 struct device_attribute *attr,
1546 char *buf)
1547{
1548 struct drm_device *ddev = dev_get_drvdata(dev);
1549 struct amdgpu_device *adev = drm_to_adev(ddev);
1550 unsigned int value;
1551 int r;
1552
1553 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_GPU_LOAD, &value);
1554 if (r)
1555 return r;
1556
1557 return sysfs_emit(buf, "%d\n", value);
1558}
1559
1560/**
1561 * DOC: mem_busy_percent
1562 *
1563 * The amdgpu driver provides a sysfs API for reading how busy the VRAM
1564 * is as a percentage. The file mem_busy_percent is used for this.
1565 * The SMU firmware computes a percentage of load based on the
1566 * aggregate activity level in the IP cores.
1567 */
1568static ssize_t amdgpu_get_mem_busy_percent(struct device *dev,
1569 struct device_attribute *attr,
1570 char *buf)
1571{
1572 struct drm_device *ddev = dev_get_drvdata(dev);
1573 struct amdgpu_device *adev = drm_to_adev(ddev);
1574 unsigned int value;
1575 int r;
1576
1577 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_MEM_LOAD, &value);
1578 if (r)
1579 return r;
1580
1581 return sysfs_emit(buf, "%d\n", value);
1582}
1583
1584/**
1585 * DOC: pcie_bw
1586 *
1587 * The amdgpu driver provides a sysfs API for estimating how much data
1588 * has been received and sent by the GPU in the last second through PCIe.
1589 * The file pcie_bw is used for this.
1590 * The Perf counters count the number of received and sent messages and return
1591 * those values, as well as the maximum payload size of a PCIe packet (mps).
1592 * Note that it is not possible to easily and quickly obtain the size of each
1593 * packet transmitted, so we output the max payload size (mps) to allow for
1594 * quick estimation of the PCIe bandwidth usage
1595 */
1596static ssize_t amdgpu_get_pcie_bw(struct device *dev,
1597 struct device_attribute *attr,
1598 char *buf)
1599{
1600 struct drm_device *ddev = dev_get_drvdata(dev);
1601 struct amdgpu_device *adev = drm_to_adev(ddev);
1602 uint64_t count0 = 0, count1 = 0;
1603 int ret;
1604
1605 if (amdgpu_in_reset(adev))
1606 return -EPERM;
1607 if (adev->in_suspend && !adev->in_runpm)
1608 return -EPERM;
1609
1610 if (adev->flags & AMD_IS_APU)
1611 return -ENODATA;
1612
1613 if (!adev->asic_funcs->get_pcie_usage)
1614 return -ENODATA;
1615
1616 ret = pm_runtime_get_sync(ddev->dev);
1617 if (ret < 0) {
1618 pm_runtime_put_autosuspend(ddev->dev);
1619 return ret;
1620 }
1621
1622 amdgpu_asic_get_pcie_usage(adev, &count0, &count1);
1623
1624 pm_runtime_mark_last_busy(ddev->dev);
1625 pm_runtime_put_autosuspend(ddev->dev);
1626
1627 return sysfs_emit(buf, "%llu %llu %i\n",
1628 count0, count1, pcie_get_mps(adev->pdev));
1629}
1630
1631/**
1632 * DOC: unique_id
1633 *
1634 * The amdgpu driver provides a sysfs API for providing a unique ID for the GPU
1635 * The file unique_id is used for this.
1636 * This will provide a Unique ID that will persist from machine to machine
1637 *
1638 * NOTE: This will only work for GFX9 and newer. This file will be absent
1639 * on unsupported ASICs (GFX8 and older)
1640 */
1641static ssize_t amdgpu_get_unique_id(struct device *dev,
1642 struct device_attribute *attr,
1643 char *buf)
1644{
1645 struct drm_device *ddev = dev_get_drvdata(dev);
1646 struct amdgpu_device *adev = drm_to_adev(ddev);
1647
1648 if (amdgpu_in_reset(adev))
1649 return -EPERM;
1650 if (adev->in_suspend && !adev->in_runpm)
1651 return -EPERM;
1652
1653 if (adev->unique_id)
1654 return sysfs_emit(buf, "%016llx\n", adev->unique_id);
1655
1656 return 0;
1657}
1658
1659/**
1660 * DOC: thermal_throttling_logging
1661 *
1662 * Thermal throttling pulls down the clock frequency and thus the performance.
1663 * It's an useful mechanism to protect the chip from overheating. Since it
1664 * impacts performance, the user controls whether it is enabled and if so,
1665 * the log frequency.
1666 *
1667 * Reading back the file shows you the status(enabled or disabled) and
1668 * the interval(in seconds) between each thermal logging.
1669 *
1670 * Writing an integer to the file, sets a new logging interval, in seconds.
1671 * The value should be between 1 and 3600. If the value is less than 1,
1672 * thermal logging is disabled. Values greater than 3600 are ignored.
1673 */
1674static ssize_t amdgpu_get_thermal_throttling_logging(struct device *dev,
1675 struct device_attribute *attr,
1676 char *buf)
1677{
1678 struct drm_device *ddev = dev_get_drvdata(dev);
1679 struct amdgpu_device *adev = drm_to_adev(ddev);
1680
1681 return sysfs_emit(buf, "%s: thermal throttling logging %s, with interval %d seconds\n",
1682 adev_to_drm(adev)->unique,
1683 atomic_read(&adev->throttling_logging_enabled) ? "enabled" : "disabled",
1684 adev->throttling_logging_rs.interval / HZ + 1);
1685}
1686
1687static ssize_t amdgpu_set_thermal_throttling_logging(struct device *dev,
1688 struct device_attribute *attr,
1689 const char *buf,
1690 size_t count)
1691{
1692 struct drm_device *ddev = dev_get_drvdata(dev);
1693 struct amdgpu_device *adev = drm_to_adev(ddev);
1694 long throttling_logging_interval;
1695 unsigned long flags;
1696 int ret = 0;
1697
1698 ret = kstrtol(buf, 0, &throttling_logging_interval);
1699 if (ret)
1700 return ret;
1701
1702 if (throttling_logging_interval > 3600)
1703 return -EINVAL;
1704
1705 if (throttling_logging_interval > 0) {
1706 raw_spin_lock_irqsave(&adev->throttling_logging_rs.lock, flags);
1707 /*
1708 * Reset the ratelimit timer internals.
1709 * This can effectively restart the timer.
1710 */
1711 adev->throttling_logging_rs.interval =
1712 (throttling_logging_interval - 1) * HZ;
1713 adev->throttling_logging_rs.begin = 0;
1714 adev->throttling_logging_rs.printed = 0;
1715 adev->throttling_logging_rs.missed = 0;
1716 raw_spin_unlock_irqrestore(&adev->throttling_logging_rs.lock, flags);
1717
1718 atomic_set(&adev->throttling_logging_enabled, 1);
1719 } else {
1720 atomic_set(&adev->throttling_logging_enabled, 0);
1721 }
1722
1723 return count;
1724}
1725
1726/**
1727 * DOC: apu_thermal_cap
1728 *
1729 * The amdgpu driver provides a sysfs API for retrieving/updating thermal
1730 * limit temperature in millidegrees Celsius
1731 *
1732 * Reading back the file shows you core limit value
1733 *
1734 * Writing an integer to the file, sets a new thermal limit. The value
1735 * should be between 0 and 100. If the value is less than 0 or greater
1736 * than 100, then the write request will be ignored.
1737 */
1738static ssize_t amdgpu_get_apu_thermal_cap(struct device *dev,
1739 struct device_attribute *attr,
1740 char *buf)
1741{
1742 int ret, size;
1743 u32 limit;
1744 struct drm_device *ddev = dev_get_drvdata(dev);
1745 struct amdgpu_device *adev = drm_to_adev(ddev);
1746
1747 ret = pm_runtime_get_sync(ddev->dev);
1748 if (ret < 0) {
1749 pm_runtime_put_autosuspend(ddev->dev);
1750 return ret;
1751 }
1752
1753 ret = amdgpu_dpm_get_apu_thermal_limit(adev, &limit);
1754 if (!ret)
1755 size = sysfs_emit(buf, "%u\n", limit);
1756 else
1757 size = sysfs_emit(buf, "failed to get thermal limit\n");
1758
1759 pm_runtime_mark_last_busy(ddev->dev);
1760 pm_runtime_put_autosuspend(ddev->dev);
1761
1762 return size;
1763}
1764
1765static ssize_t amdgpu_set_apu_thermal_cap(struct device *dev,
1766 struct device_attribute *attr,
1767 const char *buf,
1768 size_t count)
1769{
1770 int ret;
1771 u32 value;
1772 struct drm_device *ddev = dev_get_drvdata(dev);
1773 struct amdgpu_device *adev = drm_to_adev(ddev);
1774
1775 ret = kstrtou32(buf, 10, &value);
1776 if (ret)
1777 return ret;
1778
1779 if (value > 100) {
1780 dev_err(dev, "Invalid argument !\n");
1781 return -EINVAL;
1782 }
1783
1784 ret = pm_runtime_get_sync(ddev->dev);
1785 if (ret < 0) {
1786 pm_runtime_put_autosuspend(ddev->dev);
1787 return ret;
1788 }
1789
1790 ret = amdgpu_dpm_set_apu_thermal_limit(adev, value);
1791 if (ret) {
1792 dev_err(dev, "failed to update thermal limit\n");
1793 return ret;
1794 }
1795
1796 pm_runtime_mark_last_busy(ddev->dev);
1797 pm_runtime_put_autosuspend(ddev->dev);
1798
1799 return count;
1800}
1801
1802static int amdgpu_pm_metrics_attr_update(struct amdgpu_device *adev,
1803 struct amdgpu_device_attr *attr,
1804 uint32_t mask,
1805 enum amdgpu_device_attr_states *states)
1806{
1807 if (amdgpu_dpm_get_pm_metrics(adev, NULL, 0) == -EOPNOTSUPP)
1808 *states = ATTR_STATE_UNSUPPORTED;
1809
1810 return 0;
1811}
1812
1813static ssize_t amdgpu_get_pm_metrics(struct device *dev,
1814 struct device_attribute *attr, char *buf)
1815{
1816 struct drm_device *ddev = dev_get_drvdata(dev);
1817 struct amdgpu_device *adev = drm_to_adev(ddev);
1818 ssize_t size = 0;
1819 int ret;
1820
1821 if (amdgpu_in_reset(adev))
1822 return -EPERM;
1823 if (adev->in_suspend && !adev->in_runpm)
1824 return -EPERM;
1825
1826 ret = pm_runtime_get_sync(ddev->dev);
1827 if (ret < 0) {
1828 pm_runtime_put_autosuspend(ddev->dev);
1829 return ret;
1830 }
1831
1832 size = amdgpu_dpm_get_pm_metrics(adev, buf, PAGE_SIZE);
1833
1834 pm_runtime_mark_last_busy(ddev->dev);
1835 pm_runtime_put_autosuspend(ddev->dev);
1836
1837 return size;
1838}
1839
1840/**
1841 * DOC: gpu_metrics
1842 *
1843 * The amdgpu driver provides a sysfs API for retrieving current gpu
1844 * metrics data. The file gpu_metrics is used for this. Reading the
1845 * file will dump all the current gpu metrics data.
1846 *
1847 * These data include temperature, frequency, engines utilization,
1848 * power consume, throttler status, fan speed and cpu core statistics(
1849 * available for APU only). That's it will give a snapshot of all sensors
1850 * at the same time.
1851 */
1852static ssize_t amdgpu_get_gpu_metrics(struct device *dev,
1853 struct device_attribute *attr,
1854 char *buf)
1855{
1856 struct drm_device *ddev = dev_get_drvdata(dev);
1857 struct amdgpu_device *adev = drm_to_adev(ddev);
1858 void *gpu_metrics;
1859 ssize_t size = 0;
1860 int ret;
1861
1862 if (amdgpu_in_reset(adev))
1863 return -EPERM;
1864 if (adev->in_suspend && !adev->in_runpm)
1865 return -EPERM;
1866
1867 ret = pm_runtime_get_sync(ddev->dev);
1868 if (ret < 0) {
1869 pm_runtime_put_autosuspend(ddev->dev);
1870 return ret;
1871 }
1872
1873 size = amdgpu_dpm_get_gpu_metrics(adev, &gpu_metrics);
1874 if (size <= 0)
1875 goto out;
1876
1877 if (size >= PAGE_SIZE)
1878 size = PAGE_SIZE - 1;
1879
1880 memcpy(buf, gpu_metrics, size);
1881
1882out:
1883 pm_runtime_mark_last_busy(ddev->dev);
1884 pm_runtime_put_autosuspend(ddev->dev);
1885
1886 return size;
1887}
1888
1889static int amdgpu_show_powershift_percent(struct device *dev,
1890 char *buf, enum amd_pp_sensors sensor)
1891{
1892 struct drm_device *ddev = dev_get_drvdata(dev);
1893 struct amdgpu_device *adev = drm_to_adev(ddev);
1894 uint32_t ss_power;
1895 int r = 0, i;
1896
1897 r = amdgpu_hwmon_get_sensor_generic(adev, sensor, (void *)&ss_power);
1898 if (r == -EOPNOTSUPP) {
1899 /* sensor not available on dGPU, try to read from APU */
1900 adev = NULL;
1901 mutex_lock(&mgpu_info.mutex);
1902 for (i = 0; i < mgpu_info.num_gpu; i++) {
1903 if (mgpu_info.gpu_ins[i].adev->flags & AMD_IS_APU) {
1904 adev = mgpu_info.gpu_ins[i].adev;
1905 break;
1906 }
1907 }
1908 mutex_unlock(&mgpu_info.mutex);
1909 if (adev)
1910 r = amdgpu_hwmon_get_sensor_generic(adev, sensor, (void *)&ss_power);
1911 }
1912
1913 if (r)
1914 return r;
1915
1916 return sysfs_emit(buf, "%u%%\n", ss_power);
1917}
1918
1919/**
1920 * DOC: smartshift_apu_power
1921 *
1922 * The amdgpu driver provides a sysfs API for reporting APU power
1923 * shift in percentage if platform supports smartshift. Value 0 means that
1924 * there is no powershift and values between [1-100] means that the power
1925 * is shifted to APU, the percentage of boost is with respect to APU power
1926 * limit on the platform.
1927 */
1928
1929static ssize_t amdgpu_get_smartshift_apu_power(struct device *dev, struct device_attribute *attr,
1930 char *buf)
1931{
1932 return amdgpu_show_powershift_percent(dev, buf, AMDGPU_PP_SENSOR_SS_APU_SHARE);
1933}
1934
1935/**
1936 * DOC: smartshift_dgpu_power
1937 *
1938 * The amdgpu driver provides a sysfs API for reporting dGPU power
1939 * shift in percentage if platform supports smartshift. Value 0 means that
1940 * there is no powershift and values between [1-100] means that the power is
1941 * shifted to dGPU, the percentage of boost is with respect to dGPU power
1942 * limit on the platform.
1943 */
1944
1945static ssize_t amdgpu_get_smartshift_dgpu_power(struct device *dev, struct device_attribute *attr,
1946 char *buf)
1947{
1948 return amdgpu_show_powershift_percent(dev, buf, AMDGPU_PP_SENSOR_SS_DGPU_SHARE);
1949}
1950
1951/**
1952 * DOC: smartshift_bias
1953 *
1954 * The amdgpu driver provides a sysfs API for reporting the
1955 * smartshift(SS2.0) bias level. The value ranges from -100 to 100
1956 * and the default is 0. -100 sets maximum preference to APU
1957 * and 100 sets max perference to dGPU.
1958 */
1959
1960static ssize_t amdgpu_get_smartshift_bias(struct device *dev,
1961 struct device_attribute *attr,
1962 char *buf)
1963{
1964 int r = 0;
1965
1966 r = sysfs_emit(buf, "%d\n", amdgpu_smartshift_bias);
1967
1968 return r;
1969}
1970
1971static ssize_t amdgpu_set_smartshift_bias(struct device *dev,
1972 struct device_attribute *attr,
1973 const char *buf, size_t count)
1974{
1975 struct drm_device *ddev = dev_get_drvdata(dev);
1976 struct amdgpu_device *adev = drm_to_adev(ddev);
1977 int r = 0;
1978 int bias = 0;
1979
1980 if (amdgpu_in_reset(adev))
1981 return -EPERM;
1982 if (adev->in_suspend && !adev->in_runpm)
1983 return -EPERM;
1984
1985 r = pm_runtime_get_sync(ddev->dev);
1986 if (r < 0) {
1987 pm_runtime_put_autosuspend(ddev->dev);
1988 return r;
1989 }
1990
1991 r = kstrtoint(buf, 10, &bias);
1992 if (r)
1993 goto out;
1994
1995 if (bias > AMDGPU_SMARTSHIFT_MAX_BIAS)
1996 bias = AMDGPU_SMARTSHIFT_MAX_BIAS;
1997 else if (bias < AMDGPU_SMARTSHIFT_MIN_BIAS)
1998 bias = AMDGPU_SMARTSHIFT_MIN_BIAS;
1999
2000 amdgpu_smartshift_bias = bias;
2001 r = count;
2002
2003 /* TODO: update bias level with SMU message */
2004
2005out:
2006 pm_runtime_mark_last_busy(ddev->dev);
2007 pm_runtime_put_autosuspend(ddev->dev);
2008 return r;
2009}
2010
2011static int ss_power_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
2012 uint32_t mask, enum amdgpu_device_attr_states *states)
2013{
2014 if (!amdgpu_device_supports_smart_shift(adev_to_drm(adev)))
2015 *states = ATTR_STATE_UNSUPPORTED;
2016
2017 return 0;
2018}
2019
2020static int ss_bias_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
2021 uint32_t mask, enum amdgpu_device_attr_states *states)
2022{
2023 uint32_t ss_power;
2024
2025 if (!amdgpu_device_supports_smart_shift(adev_to_drm(adev)))
2026 *states = ATTR_STATE_UNSUPPORTED;
2027 else if (amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_SS_APU_SHARE,
2028 (void *)&ss_power))
2029 *states = ATTR_STATE_UNSUPPORTED;
2030 else if (amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_SS_DGPU_SHARE,
2031 (void *)&ss_power))
2032 *states = ATTR_STATE_UNSUPPORTED;
2033
2034 return 0;
2035}
2036
2037/* Following items will be read out to indicate current plpd policy:
2038 * - -1: none
2039 * - 0: disallow
2040 * - 1: default
2041 * - 2: optimized
2042 */
2043static ssize_t amdgpu_get_xgmi_plpd_policy(struct device *dev,
2044 struct device_attribute *attr,
2045 char *buf)
2046{
2047 struct drm_device *ddev = dev_get_drvdata(dev);
2048 struct amdgpu_device *adev = drm_to_adev(ddev);
2049 char *mode_desc = "none";
2050 int mode;
2051
2052 if (amdgpu_in_reset(adev))
2053 return -EPERM;
2054 if (adev->in_suspend && !adev->in_runpm)
2055 return -EPERM;
2056
2057 mode = amdgpu_dpm_get_xgmi_plpd_mode(adev, &mode_desc);
2058
2059 return sysfs_emit(buf, "%d: %s\n", mode, mode_desc);
2060}
2061
2062/* Following argument value is expected from user to change plpd policy
2063 * - arg 0: disallow plpd
2064 * - arg 1: default policy
2065 * - arg 2: optimized policy
2066 */
2067static ssize_t amdgpu_set_xgmi_plpd_policy(struct device *dev,
2068 struct device_attribute *attr,
2069 const char *buf, size_t count)
2070{
2071 struct drm_device *ddev = dev_get_drvdata(dev);
2072 struct amdgpu_device *adev = drm_to_adev(ddev);
2073 int mode, ret;
2074
2075 if (amdgpu_in_reset(adev))
2076 return -EPERM;
2077 if (adev->in_suspend && !adev->in_runpm)
2078 return -EPERM;
2079
2080 ret = kstrtos32(buf, 0, &mode);
2081 if (ret)
2082 return -EINVAL;
2083
2084 ret = pm_runtime_get_sync(ddev->dev);
2085 if (ret < 0) {
2086 pm_runtime_put_autosuspend(ddev->dev);
2087 return ret;
2088 }
2089
2090 ret = amdgpu_dpm_set_xgmi_plpd_mode(adev, mode);
2091
2092 pm_runtime_mark_last_busy(ddev->dev);
2093 pm_runtime_put_autosuspend(ddev->dev);
2094
2095 if (ret)
2096 return ret;
2097
2098 return count;
2099}
2100
2101static struct amdgpu_device_attr amdgpu_device_attrs[] = {
2102 AMDGPU_DEVICE_ATTR_RW(power_dpm_state, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2103 AMDGPU_DEVICE_ATTR_RW(power_dpm_force_performance_level, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2104 AMDGPU_DEVICE_ATTR_RO(pp_num_states, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2105 AMDGPU_DEVICE_ATTR_RO(pp_cur_state, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2106 AMDGPU_DEVICE_ATTR_RW(pp_force_state, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2107 AMDGPU_DEVICE_ATTR_RW(pp_table, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2108 AMDGPU_DEVICE_ATTR_RW(pp_dpm_sclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2109 AMDGPU_DEVICE_ATTR_RW(pp_dpm_mclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2110 AMDGPU_DEVICE_ATTR_RW(pp_dpm_socclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2111 AMDGPU_DEVICE_ATTR_RW(pp_dpm_fclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2112 AMDGPU_DEVICE_ATTR_RW(pp_dpm_vclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2113 AMDGPU_DEVICE_ATTR_RW(pp_dpm_vclk1, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2114 AMDGPU_DEVICE_ATTR_RW(pp_dpm_dclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2115 AMDGPU_DEVICE_ATTR_RW(pp_dpm_dclk1, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2116 AMDGPU_DEVICE_ATTR_RW(pp_dpm_dcefclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2117 AMDGPU_DEVICE_ATTR_RW(pp_dpm_pcie, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2118 AMDGPU_DEVICE_ATTR_RW(pp_sclk_od, ATTR_FLAG_BASIC),
2119 AMDGPU_DEVICE_ATTR_RW(pp_mclk_od, ATTR_FLAG_BASIC),
2120 AMDGPU_DEVICE_ATTR_RW(pp_power_profile_mode, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2121 AMDGPU_DEVICE_ATTR_RW(pp_od_clk_voltage, ATTR_FLAG_BASIC),
2122 AMDGPU_DEVICE_ATTR_RO(gpu_busy_percent, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2123 AMDGPU_DEVICE_ATTR_RO(mem_busy_percent, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2124 AMDGPU_DEVICE_ATTR_RO(pcie_bw, ATTR_FLAG_BASIC),
2125 AMDGPU_DEVICE_ATTR_RW(pp_features, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2126 AMDGPU_DEVICE_ATTR_RO(unique_id, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2127 AMDGPU_DEVICE_ATTR_RW(thermal_throttling_logging, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2128 AMDGPU_DEVICE_ATTR_RW(apu_thermal_cap, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2129 AMDGPU_DEVICE_ATTR_RO(gpu_metrics, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2130 AMDGPU_DEVICE_ATTR_RO(smartshift_apu_power, ATTR_FLAG_BASIC,
2131 .attr_update = ss_power_attr_update),
2132 AMDGPU_DEVICE_ATTR_RO(smartshift_dgpu_power, ATTR_FLAG_BASIC,
2133 .attr_update = ss_power_attr_update),
2134 AMDGPU_DEVICE_ATTR_RW(smartshift_bias, ATTR_FLAG_BASIC,
2135 .attr_update = ss_bias_attr_update),
2136 AMDGPU_DEVICE_ATTR_RW(xgmi_plpd_policy, ATTR_FLAG_BASIC),
2137 AMDGPU_DEVICE_ATTR_RO(pm_metrics, ATTR_FLAG_BASIC,
2138 .attr_update = amdgpu_pm_metrics_attr_update),
2139};
2140
2141static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
2142 uint32_t mask, enum amdgpu_device_attr_states *states)
2143{
2144 struct device_attribute *dev_attr = &attr->dev_attr;
2145 uint32_t mp1_ver = amdgpu_ip_version(adev, MP1_HWIP, 0);
2146 uint32_t gc_ver = amdgpu_ip_version(adev, GC_HWIP, 0);
2147 const char *attr_name = dev_attr->attr.name;
2148
2149 if (!(attr->flags & mask)) {
2150 *states = ATTR_STATE_UNSUPPORTED;
2151 return 0;
2152 }
2153
2154#define DEVICE_ATTR_IS(_name) (!strcmp(attr_name, #_name))
2155
2156 if (DEVICE_ATTR_IS(pp_dpm_socclk)) {
2157 if (gc_ver < IP_VERSION(9, 0, 0))
2158 *states = ATTR_STATE_UNSUPPORTED;
2159 } else if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
2160 if (gc_ver < IP_VERSION(9, 0, 0) ||
2161 !amdgpu_device_has_display_hardware(adev))
2162 *states = ATTR_STATE_UNSUPPORTED;
2163 } else if (DEVICE_ATTR_IS(pp_dpm_fclk)) {
2164 if (mp1_ver < IP_VERSION(10, 0, 0))
2165 *states = ATTR_STATE_UNSUPPORTED;
2166 } else if (DEVICE_ATTR_IS(pp_od_clk_voltage)) {
2167 *states = ATTR_STATE_UNSUPPORTED;
2168 if (amdgpu_dpm_is_overdrive_supported(adev))
2169 *states = ATTR_STATE_SUPPORTED;
2170 } else if (DEVICE_ATTR_IS(mem_busy_percent)) {
2171 if ((adev->flags & AMD_IS_APU &&
2172 gc_ver != IP_VERSION(9, 4, 3)) ||
2173 gc_ver == IP_VERSION(9, 0, 1))
2174 *states = ATTR_STATE_UNSUPPORTED;
2175 } else if (DEVICE_ATTR_IS(pcie_bw)) {
2176 /* PCIe Perf counters won't work on APU nodes */
2177 if (adev->flags & AMD_IS_APU)
2178 *states = ATTR_STATE_UNSUPPORTED;
2179 } else if (DEVICE_ATTR_IS(unique_id)) {
2180 switch (gc_ver) {
2181 case IP_VERSION(9, 0, 1):
2182 case IP_VERSION(9, 4, 0):
2183 case IP_VERSION(9, 4, 1):
2184 case IP_VERSION(9, 4, 2):
2185 case IP_VERSION(9, 4, 3):
2186 case IP_VERSION(10, 3, 0):
2187 case IP_VERSION(11, 0, 0):
2188 case IP_VERSION(11, 0, 1):
2189 case IP_VERSION(11, 0, 2):
2190 case IP_VERSION(11, 0, 3):
2191 *states = ATTR_STATE_SUPPORTED;
2192 break;
2193 default:
2194 *states = ATTR_STATE_UNSUPPORTED;
2195 }
2196 } else if (DEVICE_ATTR_IS(pp_features)) {
2197 if ((adev->flags & AMD_IS_APU &&
2198 gc_ver != IP_VERSION(9, 4, 3)) ||
2199 gc_ver < IP_VERSION(9, 0, 0))
2200 *states = ATTR_STATE_UNSUPPORTED;
2201 } else if (DEVICE_ATTR_IS(gpu_metrics)) {
2202 if (gc_ver < IP_VERSION(9, 1, 0))
2203 *states = ATTR_STATE_UNSUPPORTED;
2204 } else if (DEVICE_ATTR_IS(pp_dpm_vclk)) {
2205 if (!(gc_ver == IP_VERSION(10, 3, 1) ||
2206 gc_ver == IP_VERSION(10, 3, 0) ||
2207 gc_ver == IP_VERSION(10, 1, 2) ||
2208 gc_ver == IP_VERSION(11, 0, 0) ||
2209 gc_ver == IP_VERSION(11, 0, 2) ||
2210 gc_ver == IP_VERSION(11, 0, 3) ||
2211 gc_ver == IP_VERSION(9, 4, 3)))
2212 *states = ATTR_STATE_UNSUPPORTED;
2213 } else if (DEVICE_ATTR_IS(pp_dpm_vclk1)) {
2214 if (!((gc_ver == IP_VERSION(10, 3, 1) ||
2215 gc_ver == IP_VERSION(10, 3, 0) ||
2216 gc_ver == IP_VERSION(11, 0, 2) ||
2217 gc_ver == IP_VERSION(11, 0, 3)) && adev->vcn.num_vcn_inst >= 2))
2218 *states = ATTR_STATE_UNSUPPORTED;
2219 } else if (DEVICE_ATTR_IS(pp_dpm_dclk)) {
2220 if (!(gc_ver == IP_VERSION(10, 3, 1) ||
2221 gc_ver == IP_VERSION(10, 3, 0) ||
2222 gc_ver == IP_VERSION(10, 1, 2) ||
2223 gc_ver == IP_VERSION(11, 0, 0) ||
2224 gc_ver == IP_VERSION(11, 0, 2) ||
2225 gc_ver == IP_VERSION(11, 0, 3) ||
2226 gc_ver == IP_VERSION(9, 4, 3)))
2227 *states = ATTR_STATE_UNSUPPORTED;
2228 } else if (DEVICE_ATTR_IS(pp_dpm_dclk1)) {
2229 if (!((gc_ver == IP_VERSION(10, 3, 1) ||
2230 gc_ver == IP_VERSION(10, 3, 0) ||
2231 gc_ver == IP_VERSION(11, 0, 2) ||
2232 gc_ver == IP_VERSION(11, 0, 3)) && adev->vcn.num_vcn_inst >= 2))
2233 *states = ATTR_STATE_UNSUPPORTED;
2234 } else if (DEVICE_ATTR_IS(pp_power_profile_mode)) {
2235 if (amdgpu_dpm_get_power_profile_mode(adev, NULL) == -EOPNOTSUPP)
2236 *states = ATTR_STATE_UNSUPPORTED;
2237 else if ((gc_ver == IP_VERSION(10, 3, 0) ||
2238 gc_ver == IP_VERSION(11, 0, 3)) && amdgpu_sriov_vf(adev))
2239 *states = ATTR_STATE_UNSUPPORTED;
2240 } else if (DEVICE_ATTR_IS(xgmi_plpd_policy)) {
2241 if (amdgpu_dpm_get_xgmi_plpd_mode(adev, NULL) == XGMI_PLPD_NONE)
2242 *states = ATTR_STATE_UNSUPPORTED;
2243 } else if (DEVICE_ATTR_IS(pp_mclk_od)) {
2244 if (amdgpu_dpm_get_mclk_od(adev) == -EOPNOTSUPP)
2245 *states = ATTR_STATE_UNSUPPORTED;
2246 } else if (DEVICE_ATTR_IS(pp_sclk_od)) {
2247 if (amdgpu_dpm_get_sclk_od(adev) == -EOPNOTSUPP)
2248 *states = ATTR_STATE_UNSUPPORTED;
2249 } else if (DEVICE_ATTR_IS(apu_thermal_cap)) {
2250 u32 limit;
2251
2252 if (amdgpu_dpm_get_apu_thermal_limit(adev, &limit) ==
2253 -EOPNOTSUPP)
2254 *states = ATTR_STATE_UNSUPPORTED;
2255 } else if (DEVICE_ATTR_IS(pp_dpm_pcie)) {
2256 if (gc_ver == IP_VERSION(9, 4, 2) ||
2257 gc_ver == IP_VERSION(9, 4, 3))
2258 *states = ATTR_STATE_UNSUPPORTED;
2259 }
2260
2261 switch (gc_ver) {
2262 case IP_VERSION(9, 4, 1):
2263 case IP_VERSION(9, 4, 2):
2264 /* the Mi series card does not support standalone mclk/socclk/fclk level setting */
2265 if (DEVICE_ATTR_IS(pp_dpm_mclk) ||
2266 DEVICE_ATTR_IS(pp_dpm_socclk) ||
2267 DEVICE_ATTR_IS(pp_dpm_fclk)) {
2268 dev_attr->attr.mode &= ~S_IWUGO;
2269 dev_attr->store = NULL;
2270 }
2271 break;
2272 case IP_VERSION(10, 3, 0):
2273 if (DEVICE_ATTR_IS(power_dpm_force_performance_level) &&
2274 amdgpu_sriov_vf(adev)) {
2275 dev_attr->attr.mode &= ~0222;
2276 dev_attr->store = NULL;
2277 }
2278 break;
2279 default:
2280 break;
2281 }
2282
2283 if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
2284 /* SMU MP1 does not support dcefclk level setting */
2285 if (gc_ver >= IP_VERSION(10, 0, 0)) {
2286 dev_attr->attr.mode &= ~S_IWUGO;
2287 dev_attr->store = NULL;
2288 }
2289 }
2290
2291 /* setting should not be allowed from VF if not in one VF mode */
2292 if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev)) {
2293 dev_attr->attr.mode &= ~S_IWUGO;
2294 dev_attr->store = NULL;
2295 }
2296
2297#undef DEVICE_ATTR_IS
2298
2299 return 0;
2300}
2301
2302
2303static int amdgpu_device_attr_create(struct amdgpu_device *adev,
2304 struct amdgpu_device_attr *attr,
2305 uint32_t mask, struct list_head *attr_list)
2306{
2307 int ret = 0;
2308 enum amdgpu_device_attr_states attr_states = ATTR_STATE_SUPPORTED;
2309 struct amdgpu_device_attr_entry *attr_entry;
2310 struct device_attribute *dev_attr;
2311 const char *name;
2312
2313 int (*attr_update)(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
2314 uint32_t mask, enum amdgpu_device_attr_states *states) = default_attr_update;
2315
2316 if (!attr)
2317 return -EINVAL;
2318
2319 dev_attr = &attr->dev_attr;
2320 name = dev_attr->attr.name;
2321
2322 attr_update = attr->attr_update ? attr->attr_update : default_attr_update;
2323
2324 ret = attr_update(adev, attr, mask, &attr_states);
2325 if (ret) {
2326 dev_err(adev->dev, "failed to update device file %s, ret = %d\n",
2327 name, ret);
2328 return ret;
2329 }
2330
2331 if (attr_states == ATTR_STATE_UNSUPPORTED)
2332 return 0;
2333
2334 ret = device_create_file(adev->dev, dev_attr);
2335 if (ret) {
2336 dev_err(adev->dev, "failed to create device file %s, ret = %d\n",
2337 name, ret);
2338 }
2339
2340 attr_entry = kmalloc(sizeof(*attr_entry), GFP_KERNEL);
2341 if (!attr_entry)
2342 return -ENOMEM;
2343
2344 attr_entry->attr = attr;
2345 INIT_LIST_HEAD(&attr_entry->entry);
2346
2347 list_add_tail(&attr_entry->entry, attr_list);
2348
2349 return ret;
2350}
2351
2352static void amdgpu_device_attr_remove(struct amdgpu_device *adev, struct amdgpu_device_attr *attr)
2353{
2354 struct device_attribute *dev_attr = &attr->dev_attr;
2355
2356 device_remove_file(adev->dev, dev_attr);
2357}
2358
2359static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
2360 struct list_head *attr_list);
2361
2362static int amdgpu_device_attr_create_groups(struct amdgpu_device *adev,
2363 struct amdgpu_device_attr *attrs,
2364 uint32_t counts,
2365 uint32_t mask,
2366 struct list_head *attr_list)
2367{
2368 int ret = 0;
2369 uint32_t i = 0;
2370
2371 for (i = 0; i < counts; i++) {
2372 ret = amdgpu_device_attr_create(adev, &attrs[i], mask, attr_list);
2373 if (ret)
2374 goto failed;
2375 }
2376
2377 return 0;
2378
2379failed:
2380 amdgpu_device_attr_remove_groups(adev, attr_list);
2381
2382 return ret;
2383}
2384
2385static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
2386 struct list_head *attr_list)
2387{
2388 struct amdgpu_device_attr_entry *entry, *entry_tmp;
2389
2390 if (list_empty(attr_list))
2391 return ;
2392
2393 list_for_each_entry_safe(entry, entry_tmp, attr_list, entry) {
2394 amdgpu_device_attr_remove(adev, entry->attr);
2395 list_del(&entry->entry);
2396 kfree(entry);
2397 }
2398}
2399
2400static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
2401 struct device_attribute *attr,
2402 char *buf)
2403{
2404 struct amdgpu_device *adev = dev_get_drvdata(dev);
2405 int channel = to_sensor_dev_attr(attr)->index;
2406 int r, temp = 0;
2407
2408 if (channel >= PP_TEMP_MAX)
2409 return -EINVAL;
2410
2411 switch (channel) {
2412 case PP_TEMP_JUNCTION:
2413 /* get current junction temperature */
2414 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_HOTSPOT_TEMP,
2415 (void *)&temp);
2416 break;
2417 case PP_TEMP_EDGE:
2418 /* get current edge temperature */
2419 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_EDGE_TEMP,
2420 (void *)&temp);
2421 break;
2422 case PP_TEMP_MEM:
2423 /* get current memory temperature */
2424 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_MEM_TEMP,
2425 (void *)&temp);
2426 break;
2427 default:
2428 r = -EINVAL;
2429 break;
2430 }
2431
2432 if (r)
2433 return r;
2434
2435 return sysfs_emit(buf, "%d\n", temp);
2436}
2437
2438static ssize_t amdgpu_hwmon_show_temp_thresh(struct device *dev,
2439 struct device_attribute *attr,
2440 char *buf)
2441{
2442 struct amdgpu_device *adev = dev_get_drvdata(dev);
2443 int hyst = to_sensor_dev_attr(attr)->index;
2444 int temp;
2445
2446 if (hyst)
2447 temp = adev->pm.dpm.thermal.min_temp;
2448 else
2449 temp = adev->pm.dpm.thermal.max_temp;
2450
2451 return sysfs_emit(buf, "%d\n", temp);
2452}
2453
2454static ssize_t amdgpu_hwmon_show_hotspot_temp_thresh(struct device *dev,
2455 struct device_attribute *attr,
2456 char *buf)
2457{
2458 struct amdgpu_device *adev = dev_get_drvdata(dev);
2459 int hyst = to_sensor_dev_attr(attr)->index;
2460 int temp;
2461
2462 if (hyst)
2463 temp = adev->pm.dpm.thermal.min_hotspot_temp;
2464 else
2465 temp = adev->pm.dpm.thermal.max_hotspot_crit_temp;
2466
2467 return sysfs_emit(buf, "%d\n", temp);
2468}
2469
2470static ssize_t amdgpu_hwmon_show_mem_temp_thresh(struct device *dev,
2471 struct device_attribute *attr,
2472 char *buf)
2473{
2474 struct amdgpu_device *adev = dev_get_drvdata(dev);
2475 int hyst = to_sensor_dev_attr(attr)->index;
2476 int temp;
2477
2478 if (hyst)
2479 temp = adev->pm.dpm.thermal.min_mem_temp;
2480 else
2481 temp = adev->pm.dpm.thermal.max_mem_crit_temp;
2482
2483 return sysfs_emit(buf, "%d\n", temp);
2484}
2485
2486static ssize_t amdgpu_hwmon_show_temp_label(struct device *dev,
2487 struct device_attribute *attr,
2488 char *buf)
2489{
2490 int channel = to_sensor_dev_attr(attr)->index;
2491
2492 if (channel >= PP_TEMP_MAX)
2493 return -EINVAL;
2494
2495 return sysfs_emit(buf, "%s\n", temp_label[channel].label);
2496}
2497
2498static ssize_t amdgpu_hwmon_show_temp_emergency(struct device *dev,
2499 struct device_attribute *attr,
2500 char *buf)
2501{
2502 struct amdgpu_device *adev = dev_get_drvdata(dev);
2503 int channel = to_sensor_dev_attr(attr)->index;
2504 int temp = 0;
2505
2506 if (channel >= PP_TEMP_MAX)
2507 return -EINVAL;
2508
2509 switch (channel) {
2510 case PP_TEMP_JUNCTION:
2511 temp = adev->pm.dpm.thermal.max_hotspot_emergency_temp;
2512 break;
2513 case PP_TEMP_EDGE:
2514 temp = adev->pm.dpm.thermal.max_edge_emergency_temp;
2515 break;
2516 case PP_TEMP_MEM:
2517 temp = adev->pm.dpm.thermal.max_mem_emergency_temp;
2518 break;
2519 }
2520
2521 return sysfs_emit(buf, "%d\n", temp);
2522}
2523
2524static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
2525 struct device_attribute *attr,
2526 char *buf)
2527{
2528 struct amdgpu_device *adev = dev_get_drvdata(dev);
2529 u32 pwm_mode = 0;
2530 int ret;
2531
2532 if (amdgpu_in_reset(adev))
2533 return -EPERM;
2534 if (adev->in_suspend && !adev->in_runpm)
2535 return -EPERM;
2536
2537 ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2538 if (ret < 0) {
2539 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2540 return ret;
2541 }
2542
2543 ret = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
2544
2545 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2546 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2547
2548 if (ret)
2549 return -EINVAL;
2550
2551 return sysfs_emit(buf, "%u\n", pwm_mode);
2552}
2553
2554static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev,
2555 struct device_attribute *attr,
2556 const char *buf,
2557 size_t count)
2558{
2559 struct amdgpu_device *adev = dev_get_drvdata(dev);
2560 int err, ret;
2561 u32 pwm_mode;
2562 int value;
2563
2564 if (amdgpu_in_reset(adev))
2565 return -EPERM;
2566 if (adev->in_suspend && !adev->in_runpm)
2567 return -EPERM;
2568
2569 err = kstrtoint(buf, 10, &value);
2570 if (err)
2571 return err;
2572
2573 if (value == 0)
2574 pwm_mode = AMD_FAN_CTRL_NONE;
2575 else if (value == 1)
2576 pwm_mode = AMD_FAN_CTRL_MANUAL;
2577 else if (value == 2)
2578 pwm_mode = AMD_FAN_CTRL_AUTO;
2579 else
2580 return -EINVAL;
2581
2582 ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2583 if (ret < 0) {
2584 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2585 return ret;
2586 }
2587
2588 ret = amdgpu_dpm_set_fan_control_mode(adev, pwm_mode);
2589
2590 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2591 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2592
2593 if (ret)
2594 return -EINVAL;
2595
2596 return count;
2597}
2598
2599static ssize_t amdgpu_hwmon_get_pwm1_min(struct device *dev,
2600 struct device_attribute *attr,
2601 char *buf)
2602{
2603 return sysfs_emit(buf, "%i\n", 0);
2604}
2605
2606static ssize_t amdgpu_hwmon_get_pwm1_max(struct device *dev,
2607 struct device_attribute *attr,
2608 char *buf)
2609{
2610 return sysfs_emit(buf, "%i\n", 255);
2611}
2612
2613static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
2614 struct device_attribute *attr,
2615 const char *buf, size_t count)
2616{
2617 struct amdgpu_device *adev = dev_get_drvdata(dev);
2618 int err;
2619 u32 value;
2620 u32 pwm_mode;
2621
2622 if (amdgpu_in_reset(adev))
2623 return -EPERM;
2624 if (adev->in_suspend && !adev->in_runpm)
2625 return -EPERM;
2626
2627 err = kstrtou32(buf, 10, &value);
2628 if (err)
2629 return err;
2630
2631 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2632 if (err < 0) {
2633 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2634 return err;
2635 }
2636
2637 err = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
2638 if (err)
2639 goto out;
2640
2641 if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
2642 pr_info("manual fan speed control should be enabled first\n");
2643 err = -EINVAL;
2644 goto out;
2645 }
2646
2647 err = amdgpu_dpm_set_fan_speed_pwm(adev, value);
2648
2649out:
2650 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2651 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2652
2653 if (err)
2654 return err;
2655
2656 return count;
2657}
2658
2659static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
2660 struct device_attribute *attr,
2661 char *buf)
2662{
2663 struct amdgpu_device *adev = dev_get_drvdata(dev);
2664 int err;
2665 u32 speed = 0;
2666
2667 if (amdgpu_in_reset(adev))
2668 return -EPERM;
2669 if (adev->in_suspend && !adev->in_runpm)
2670 return -EPERM;
2671
2672 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2673 if (err < 0) {
2674 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2675 return err;
2676 }
2677
2678 err = amdgpu_dpm_get_fan_speed_pwm(adev, &speed);
2679
2680 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2681 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2682
2683 if (err)
2684 return err;
2685
2686 return sysfs_emit(buf, "%i\n", speed);
2687}
2688
2689static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
2690 struct device_attribute *attr,
2691 char *buf)
2692{
2693 struct amdgpu_device *adev = dev_get_drvdata(dev);
2694 int err;
2695 u32 speed = 0;
2696
2697 if (amdgpu_in_reset(adev))
2698 return -EPERM;
2699 if (adev->in_suspend && !adev->in_runpm)
2700 return -EPERM;
2701
2702 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2703 if (err < 0) {
2704 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2705 return err;
2706 }
2707
2708 err = amdgpu_dpm_get_fan_speed_rpm(adev, &speed);
2709
2710 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2711 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2712
2713 if (err)
2714 return err;
2715
2716 return sysfs_emit(buf, "%i\n", speed);
2717}
2718
2719static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev,
2720 struct device_attribute *attr,
2721 char *buf)
2722{
2723 struct amdgpu_device *adev = dev_get_drvdata(dev);
2724 u32 min_rpm = 0;
2725 int r;
2726
2727 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_MIN_FAN_RPM,
2728 (void *)&min_rpm);
2729
2730 if (r)
2731 return r;
2732
2733 return sysfs_emit(buf, "%d\n", min_rpm);
2734}
2735
2736static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
2737 struct device_attribute *attr,
2738 char *buf)
2739{
2740 struct amdgpu_device *adev = dev_get_drvdata(dev);
2741 u32 max_rpm = 0;
2742 int r;
2743
2744 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_MAX_FAN_RPM,
2745 (void *)&max_rpm);
2746
2747 if (r)
2748 return r;
2749
2750 return sysfs_emit(buf, "%d\n", max_rpm);
2751}
2752
2753static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
2754 struct device_attribute *attr,
2755 char *buf)
2756{
2757 struct amdgpu_device *adev = dev_get_drvdata(dev);
2758 int err;
2759 u32 rpm = 0;
2760
2761 if (amdgpu_in_reset(adev))
2762 return -EPERM;
2763 if (adev->in_suspend && !adev->in_runpm)
2764 return -EPERM;
2765
2766 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2767 if (err < 0) {
2768 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2769 return err;
2770 }
2771
2772 err = amdgpu_dpm_get_fan_speed_rpm(adev, &rpm);
2773
2774 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2775 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2776
2777 if (err)
2778 return err;
2779
2780 return sysfs_emit(buf, "%i\n", rpm);
2781}
2782
2783static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
2784 struct device_attribute *attr,
2785 const char *buf, size_t count)
2786{
2787 struct amdgpu_device *adev = dev_get_drvdata(dev);
2788 int err;
2789 u32 value;
2790 u32 pwm_mode;
2791
2792 if (amdgpu_in_reset(adev))
2793 return -EPERM;
2794 if (adev->in_suspend && !adev->in_runpm)
2795 return -EPERM;
2796
2797 err = kstrtou32(buf, 10, &value);
2798 if (err)
2799 return err;
2800
2801 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2802 if (err < 0) {
2803 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2804 return err;
2805 }
2806
2807 err = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
2808 if (err)
2809 goto out;
2810
2811 if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
2812 err = -ENODATA;
2813 goto out;
2814 }
2815
2816 err = amdgpu_dpm_set_fan_speed_rpm(adev, value);
2817
2818out:
2819 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2820 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2821
2822 if (err)
2823 return err;
2824
2825 return count;
2826}
2827
2828static ssize_t amdgpu_hwmon_get_fan1_enable(struct device *dev,
2829 struct device_attribute *attr,
2830 char *buf)
2831{
2832 struct amdgpu_device *adev = dev_get_drvdata(dev);
2833 u32 pwm_mode = 0;
2834 int ret;
2835
2836 if (amdgpu_in_reset(adev))
2837 return -EPERM;
2838 if (adev->in_suspend && !adev->in_runpm)
2839 return -EPERM;
2840
2841 ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2842 if (ret < 0) {
2843 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2844 return ret;
2845 }
2846
2847 ret = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
2848
2849 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2850 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2851
2852 if (ret)
2853 return -EINVAL;
2854
2855 return sysfs_emit(buf, "%i\n", pwm_mode == AMD_FAN_CTRL_AUTO ? 0 : 1);
2856}
2857
2858static ssize_t amdgpu_hwmon_set_fan1_enable(struct device *dev,
2859 struct device_attribute *attr,
2860 const char *buf,
2861 size_t count)
2862{
2863 struct amdgpu_device *adev = dev_get_drvdata(dev);
2864 int err;
2865 int value;
2866 u32 pwm_mode;
2867
2868 if (amdgpu_in_reset(adev))
2869 return -EPERM;
2870 if (adev->in_suspend && !adev->in_runpm)
2871 return -EPERM;
2872
2873 err = kstrtoint(buf, 10, &value);
2874 if (err)
2875 return err;
2876
2877 if (value == 0)
2878 pwm_mode = AMD_FAN_CTRL_AUTO;
2879 else if (value == 1)
2880 pwm_mode = AMD_FAN_CTRL_MANUAL;
2881 else
2882 return -EINVAL;
2883
2884 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2885 if (err < 0) {
2886 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2887 return err;
2888 }
2889
2890 err = amdgpu_dpm_set_fan_control_mode(adev, pwm_mode);
2891
2892 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2893 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2894
2895 if (err)
2896 return -EINVAL;
2897
2898 return count;
2899}
2900
2901static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev,
2902 struct device_attribute *attr,
2903 char *buf)
2904{
2905 struct amdgpu_device *adev = dev_get_drvdata(dev);
2906 u32 vddgfx;
2907 int r;
2908
2909 /* get the voltage */
2910 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_VDDGFX,
2911 (void *)&vddgfx);
2912 if (r)
2913 return r;
2914
2915 return sysfs_emit(buf, "%d\n", vddgfx);
2916}
2917
2918static ssize_t amdgpu_hwmon_show_vddgfx_label(struct device *dev,
2919 struct device_attribute *attr,
2920 char *buf)
2921{
2922 return sysfs_emit(buf, "vddgfx\n");
2923}
2924
2925static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
2926 struct device_attribute *attr,
2927 char *buf)
2928{
2929 struct amdgpu_device *adev = dev_get_drvdata(dev);
2930 u32 vddnb;
2931 int r;
2932
2933 /* only APUs have vddnb */
2934 if (!(adev->flags & AMD_IS_APU))
2935 return -EINVAL;
2936
2937 /* get the voltage */
2938 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_VDDNB,
2939 (void *)&vddnb);
2940 if (r)
2941 return r;
2942
2943 return sysfs_emit(buf, "%d\n", vddnb);
2944}
2945
2946static ssize_t amdgpu_hwmon_show_vddnb_label(struct device *dev,
2947 struct device_attribute *attr,
2948 char *buf)
2949{
2950 return sysfs_emit(buf, "vddnb\n");
2951}
2952
2953static int amdgpu_hwmon_get_power(struct device *dev,
2954 enum amd_pp_sensors sensor)
2955{
2956 struct amdgpu_device *adev = dev_get_drvdata(dev);
2957 unsigned int uw;
2958 u32 query = 0;
2959 int r;
2960
2961 r = amdgpu_hwmon_get_sensor_generic(adev, sensor, (void *)&query);
2962 if (r)
2963 return r;
2964
2965 /* convert to microwatts */
2966 uw = (query >> 8) * 1000000 + (query & 0xff) * 1000;
2967
2968 return uw;
2969}
2970
2971static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
2972 struct device_attribute *attr,
2973 char *buf)
2974{
2975 ssize_t val;
2976
2977 val = amdgpu_hwmon_get_power(dev, AMDGPU_PP_SENSOR_GPU_AVG_POWER);
2978 if (val < 0)
2979 return val;
2980
2981 return sysfs_emit(buf, "%zd\n", val);
2982}
2983
2984static ssize_t amdgpu_hwmon_show_power_input(struct device *dev,
2985 struct device_attribute *attr,
2986 char *buf)
2987{
2988 ssize_t val;
2989
2990 val = amdgpu_hwmon_get_power(dev, AMDGPU_PP_SENSOR_GPU_INPUT_POWER);
2991 if (val < 0)
2992 return val;
2993
2994 return sysfs_emit(buf, "%zd\n", val);
2995}
2996
2997static ssize_t amdgpu_hwmon_show_power_cap_generic(struct device *dev,
2998 struct device_attribute *attr,
2999 char *buf,
3000 enum pp_power_limit_level pp_limit_level)
3001{
3002 struct amdgpu_device *adev = dev_get_drvdata(dev);
3003 enum pp_power_type power_type = to_sensor_dev_attr(attr)->index;
3004 uint32_t limit;
3005 ssize_t size;
3006 int r;
3007
3008 if (amdgpu_in_reset(adev))
3009 return -EPERM;
3010 if (adev->in_suspend && !adev->in_runpm)
3011 return -EPERM;
3012
3013 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
3014 if (r < 0) {
3015 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3016 return r;
3017 }
3018
3019 r = amdgpu_dpm_get_power_limit(adev, &limit,
3020 pp_limit_level, power_type);
3021
3022 if (!r)
3023 size = sysfs_emit(buf, "%u\n", limit * 1000000);
3024 else
3025 size = sysfs_emit(buf, "\n");
3026
3027 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
3028 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3029
3030 return size;
3031}
3032
3033static ssize_t amdgpu_hwmon_show_power_cap_min(struct device *dev,
3034 struct device_attribute *attr,
3035 char *buf)
3036{
3037 return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_MIN);
3038}
3039
3040static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
3041 struct device_attribute *attr,
3042 char *buf)
3043{
3044 return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_MAX);
3045
3046}
3047
3048static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
3049 struct device_attribute *attr,
3050 char *buf)
3051{
3052 return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_CURRENT);
3053
3054}
3055
3056static ssize_t amdgpu_hwmon_show_power_cap_default(struct device *dev,
3057 struct device_attribute *attr,
3058 char *buf)
3059{
3060 return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_DEFAULT);
3061
3062}
3063
3064static ssize_t amdgpu_hwmon_show_power_label(struct device *dev,
3065 struct device_attribute *attr,
3066 char *buf)
3067{
3068 struct amdgpu_device *adev = dev_get_drvdata(dev);
3069 uint32_t gc_ver = amdgpu_ip_version(adev, GC_HWIP, 0);
3070
3071 if (gc_ver == IP_VERSION(10, 3, 1))
3072 return sysfs_emit(buf, "%s\n",
3073 to_sensor_dev_attr(attr)->index == PP_PWR_TYPE_FAST ?
3074 "fastPPT" : "slowPPT");
3075 else
3076 return sysfs_emit(buf, "PPT\n");
3077}
3078
3079static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
3080 struct device_attribute *attr,
3081 const char *buf,
3082 size_t count)
3083{
3084 struct amdgpu_device *adev = dev_get_drvdata(dev);
3085 int limit_type = to_sensor_dev_attr(attr)->index;
3086 int err;
3087 u32 value;
3088
3089 if (amdgpu_in_reset(adev))
3090 return -EPERM;
3091 if (adev->in_suspend && !adev->in_runpm)
3092 return -EPERM;
3093
3094 if (amdgpu_sriov_vf(adev))
3095 return -EINVAL;
3096
3097 err = kstrtou32(buf, 10, &value);
3098 if (err)
3099 return err;
3100
3101 value = value / 1000000; /* convert to Watt */
3102 value |= limit_type << 24;
3103
3104 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
3105 if (err < 0) {
3106 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3107 return err;
3108 }
3109
3110 err = amdgpu_dpm_set_power_limit(adev, value);
3111
3112 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
3113 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3114
3115 if (err)
3116 return err;
3117
3118 return count;
3119}
3120
3121static ssize_t amdgpu_hwmon_show_sclk(struct device *dev,
3122 struct device_attribute *attr,
3123 char *buf)
3124{
3125 struct amdgpu_device *adev = dev_get_drvdata(dev);
3126 uint32_t sclk;
3127 int r;
3128
3129 /* get the sclk */
3130 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_GFX_SCLK,
3131 (void *)&sclk);
3132 if (r)
3133 return r;
3134
3135 return sysfs_emit(buf, "%u\n", sclk * 10 * 1000);
3136}
3137
3138static ssize_t amdgpu_hwmon_show_sclk_label(struct device *dev,
3139 struct device_attribute *attr,
3140 char *buf)
3141{
3142 return sysfs_emit(buf, "sclk\n");
3143}
3144
3145static ssize_t amdgpu_hwmon_show_mclk(struct device *dev,
3146 struct device_attribute *attr,
3147 char *buf)
3148{
3149 struct amdgpu_device *adev = dev_get_drvdata(dev);
3150 uint32_t mclk;
3151 int r;
3152
3153 /* get the sclk */
3154 r = amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_GFX_MCLK,
3155 (void *)&mclk);
3156 if (r)
3157 return r;
3158
3159 return sysfs_emit(buf, "%u\n", mclk * 10 * 1000);
3160}
3161
3162static ssize_t amdgpu_hwmon_show_mclk_label(struct device *dev,
3163 struct device_attribute *attr,
3164 char *buf)
3165{
3166 return sysfs_emit(buf, "mclk\n");
3167}
3168
3169/**
3170 * DOC: hwmon
3171 *
3172 * The amdgpu driver exposes the following sensor interfaces:
3173 *
3174 * - GPU temperature (via the on-die sensor)
3175 *
3176 * - GPU voltage
3177 *
3178 * - Northbridge voltage (APUs only)
3179 *
3180 * - GPU power
3181 *
3182 * - GPU fan
3183 *
3184 * - GPU gfx/compute engine clock
3185 *
3186 * - GPU memory clock (dGPU only)
3187 *
3188 * hwmon interfaces for GPU temperature:
3189 *
3190 * - temp[1-3]_input: the on die GPU temperature in millidegrees Celsius
3191 * - temp2_input and temp3_input are supported on SOC15 dGPUs only
3192 *
3193 * - temp[1-3]_label: temperature channel label
3194 * - temp2_label and temp3_label are supported on SOC15 dGPUs only
3195 *
3196 * - temp[1-3]_crit: temperature critical max value in millidegrees Celsius
3197 * - temp2_crit and temp3_crit are supported on SOC15 dGPUs only
3198 *
3199 * - temp[1-3]_crit_hyst: temperature hysteresis for critical limit in millidegrees Celsius
3200 * - temp2_crit_hyst and temp3_crit_hyst are supported on SOC15 dGPUs only
3201 *
3202 * - temp[1-3]_emergency: temperature emergency max value(asic shutdown) in millidegrees Celsius
3203 * - these are supported on SOC15 dGPUs only
3204 *
3205 * hwmon interfaces for GPU voltage:
3206 *
3207 * - in0_input: the voltage on the GPU in millivolts
3208 *
3209 * - in1_input: the voltage on the Northbridge in millivolts
3210 *
3211 * hwmon interfaces for GPU power:
3212 *
3213 * - power1_average: average power used by the SoC in microWatts. On APUs this includes the CPU.
3214 *
3215 * - power1_input: instantaneous power used by the SoC in microWatts. On APUs this includes the CPU.
3216 *
3217 * - power1_cap_min: minimum cap supported in microWatts
3218 *
3219 * - power1_cap_max: maximum cap supported in microWatts
3220 *
3221 * - power1_cap: selected power cap in microWatts
3222 *
3223 * hwmon interfaces for GPU fan:
3224 *
3225 * - pwm1: pulse width modulation fan level (0-255)
3226 *
3227 * - pwm1_enable: pulse width modulation fan control method (0: no fan speed control, 1: manual fan speed control using pwm interface, 2: automatic fan speed control)
3228 *
3229 * - pwm1_min: pulse width modulation fan control minimum level (0)
3230 *
3231 * - pwm1_max: pulse width modulation fan control maximum level (255)
3232 *
3233 * - fan1_min: a minimum value Unit: revolution/min (RPM)
3234 *
3235 * - fan1_max: a maximum value Unit: revolution/max (RPM)
3236 *
3237 * - fan1_input: fan speed in RPM
3238 *
3239 * - fan[1-\*]_target: Desired fan speed Unit: revolution/min (RPM)
3240 *
3241 * - fan[1-\*]_enable: Enable or disable the sensors.1: Enable 0: Disable
3242 *
3243 * NOTE: DO NOT set the fan speed via "pwm1" and "fan[1-\*]_target" interfaces at the same time.
3244 * That will get the former one overridden.
3245 *
3246 * hwmon interfaces for GPU clocks:
3247 *
3248 * - freq1_input: the gfx/compute clock in hertz
3249 *
3250 * - freq2_input: the memory clock in hertz
3251 *
3252 * You can use hwmon tools like sensors to view this information on your system.
3253 *
3254 */
3255
3256static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_EDGE);
3257static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 0);
3258static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 1);
3259static SENSOR_DEVICE_ATTR(temp1_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_EDGE);
3260static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_JUNCTION);
3261static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, amdgpu_hwmon_show_hotspot_temp_thresh, NULL, 0);
3262static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, amdgpu_hwmon_show_hotspot_temp_thresh, NULL, 1);
3263static SENSOR_DEVICE_ATTR(temp2_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_JUNCTION);
3264static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_MEM);
3265static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO, amdgpu_hwmon_show_mem_temp_thresh, NULL, 0);
3266static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, amdgpu_hwmon_show_mem_temp_thresh, NULL, 1);
3267static SENSOR_DEVICE_ATTR(temp3_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_MEM);
3268static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_EDGE);
3269static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_JUNCTION);
3270static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_MEM);
3271static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1, amdgpu_hwmon_set_pwm1, 0);
3272static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1_enable, amdgpu_hwmon_set_pwm1_enable, 0);
3273static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, amdgpu_hwmon_get_pwm1_min, NULL, 0);
3274static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, amdgpu_hwmon_get_pwm1_max, NULL, 0);
3275static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, amdgpu_hwmon_get_fan1_input, NULL, 0);
3276static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, amdgpu_hwmon_get_fan1_min, NULL, 0);
3277static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, amdgpu_hwmon_get_fan1_max, NULL, 0);
3278static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_target, amdgpu_hwmon_set_fan1_target, 0);
3279static SENSOR_DEVICE_ATTR(fan1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_enable, amdgpu_hwmon_set_fan1_enable, 0);
3280static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, amdgpu_hwmon_show_vddgfx, NULL, 0);
3281static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, amdgpu_hwmon_show_vddgfx_label, NULL, 0);
3282static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, amdgpu_hwmon_show_vddnb, NULL, 0);
3283static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, amdgpu_hwmon_show_vddnb_label, NULL, 0);
3284static SENSOR_DEVICE_ATTR(power1_average, S_IRUGO, amdgpu_hwmon_show_power_avg, NULL, 0);
3285static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, amdgpu_hwmon_show_power_input, NULL, 0);
3286static SENSOR_DEVICE_ATTR(power1_cap_max, S_IRUGO, amdgpu_hwmon_show_power_cap_max, NULL, 0);
3287static SENSOR_DEVICE_ATTR(power1_cap_min, S_IRUGO, amdgpu_hwmon_show_power_cap_min, NULL, 0);
3288static SENSOR_DEVICE_ATTR(power1_cap, S_IRUGO | S_IWUSR, amdgpu_hwmon_show_power_cap, amdgpu_hwmon_set_power_cap, 0);
3289static SENSOR_DEVICE_ATTR(power1_cap_default, S_IRUGO, amdgpu_hwmon_show_power_cap_default, NULL, 0);
3290static SENSOR_DEVICE_ATTR(power1_label, S_IRUGO, amdgpu_hwmon_show_power_label, NULL, 0);
3291static SENSOR_DEVICE_ATTR(power2_average, S_IRUGO, amdgpu_hwmon_show_power_avg, NULL, 1);
3292static SENSOR_DEVICE_ATTR(power2_cap_max, S_IRUGO, amdgpu_hwmon_show_power_cap_max, NULL, 1);
3293static SENSOR_DEVICE_ATTR(power2_cap_min, S_IRUGO, amdgpu_hwmon_show_power_cap_min, NULL, 1);
3294static SENSOR_DEVICE_ATTR(power2_cap, S_IRUGO | S_IWUSR, amdgpu_hwmon_show_power_cap, amdgpu_hwmon_set_power_cap, 1);
3295static SENSOR_DEVICE_ATTR(power2_cap_default, S_IRUGO, amdgpu_hwmon_show_power_cap_default, NULL, 1);
3296static SENSOR_DEVICE_ATTR(power2_label, S_IRUGO, amdgpu_hwmon_show_power_label, NULL, 1);
3297static SENSOR_DEVICE_ATTR(freq1_input, S_IRUGO, amdgpu_hwmon_show_sclk, NULL, 0);
3298static SENSOR_DEVICE_ATTR(freq1_label, S_IRUGO, amdgpu_hwmon_show_sclk_label, NULL, 0);
3299static SENSOR_DEVICE_ATTR(freq2_input, S_IRUGO, amdgpu_hwmon_show_mclk, NULL, 0);
3300static SENSOR_DEVICE_ATTR(freq2_label, S_IRUGO, amdgpu_hwmon_show_mclk_label, NULL, 0);
3301
3302static struct attribute *hwmon_attributes[] = {
3303 &sensor_dev_attr_temp1_input.dev_attr.attr,
3304 &sensor_dev_attr_temp1_crit.dev_attr.attr,
3305 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
3306 &sensor_dev_attr_temp2_input.dev_attr.attr,
3307 &sensor_dev_attr_temp2_crit.dev_attr.attr,
3308 &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
3309 &sensor_dev_attr_temp3_input.dev_attr.attr,
3310 &sensor_dev_attr_temp3_crit.dev_attr.attr,
3311 &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
3312 &sensor_dev_attr_temp1_emergency.dev_attr.attr,
3313 &sensor_dev_attr_temp2_emergency.dev_attr.attr,
3314 &sensor_dev_attr_temp3_emergency.dev_attr.attr,
3315 &sensor_dev_attr_temp1_label.dev_attr.attr,
3316 &sensor_dev_attr_temp2_label.dev_attr.attr,
3317 &sensor_dev_attr_temp3_label.dev_attr.attr,
3318 &sensor_dev_attr_pwm1.dev_attr.attr,
3319 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
3320 &sensor_dev_attr_pwm1_min.dev_attr.attr,
3321 &sensor_dev_attr_pwm1_max.dev_attr.attr,
3322 &sensor_dev_attr_fan1_input.dev_attr.attr,
3323 &sensor_dev_attr_fan1_min.dev_attr.attr,
3324 &sensor_dev_attr_fan1_max.dev_attr.attr,
3325 &sensor_dev_attr_fan1_target.dev_attr.attr,
3326 &sensor_dev_attr_fan1_enable.dev_attr.attr,
3327 &sensor_dev_attr_in0_input.dev_attr.attr,
3328 &sensor_dev_attr_in0_label.dev_attr.attr,
3329 &sensor_dev_attr_in1_input.dev_attr.attr,
3330 &sensor_dev_attr_in1_label.dev_attr.attr,
3331 &sensor_dev_attr_power1_average.dev_attr.attr,
3332 &sensor_dev_attr_power1_input.dev_attr.attr,
3333 &sensor_dev_attr_power1_cap_max.dev_attr.attr,
3334 &sensor_dev_attr_power1_cap_min.dev_attr.attr,
3335 &sensor_dev_attr_power1_cap.dev_attr.attr,
3336 &sensor_dev_attr_power1_cap_default.dev_attr.attr,
3337 &sensor_dev_attr_power1_label.dev_attr.attr,
3338 &sensor_dev_attr_power2_average.dev_attr.attr,
3339 &sensor_dev_attr_power2_cap_max.dev_attr.attr,
3340 &sensor_dev_attr_power2_cap_min.dev_attr.attr,
3341 &sensor_dev_attr_power2_cap.dev_attr.attr,
3342 &sensor_dev_attr_power2_cap_default.dev_attr.attr,
3343 &sensor_dev_attr_power2_label.dev_attr.attr,
3344 &sensor_dev_attr_freq1_input.dev_attr.attr,
3345 &sensor_dev_attr_freq1_label.dev_attr.attr,
3346 &sensor_dev_attr_freq2_input.dev_attr.attr,
3347 &sensor_dev_attr_freq2_label.dev_attr.attr,
3348 NULL
3349};
3350
3351static umode_t hwmon_attributes_visible(struct kobject *kobj,
3352 struct attribute *attr, int index)
3353{
3354 struct device *dev = kobj_to_dev(kobj);
3355 struct amdgpu_device *adev = dev_get_drvdata(dev);
3356 umode_t effective_mode = attr->mode;
3357 uint32_t gc_ver = amdgpu_ip_version(adev, GC_HWIP, 0);
3358 uint32_t tmp;
3359
3360 /* under pp one vf mode manage of hwmon attributes is not supported */
3361 if (amdgpu_sriov_is_pp_one_vf(adev))
3362 effective_mode &= ~S_IWUSR;
3363
3364 /* Skip fan attributes if fan is not present */
3365 if (adev->pm.no_fan && (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3366 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3367 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3368 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3369 attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3370 attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3371 attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3372 attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3373 attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3374 return 0;
3375
3376 /* Skip fan attributes on APU */
3377 if ((adev->flags & AMD_IS_APU) &&
3378 (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3379 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3380 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3381 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3382 attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3383 attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3384 attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3385 attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3386 attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3387 return 0;
3388
3389 /* Skip crit temp on APU */
3390 if ((((adev->flags & AMD_IS_APU) && (adev->family >= AMDGPU_FAMILY_CZ)) ||
3391 (gc_ver == IP_VERSION(9, 4, 3))) &&
3392 (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
3393 attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr))
3394 return 0;
3395
3396 /* Skip limit attributes if DPM is not enabled */
3397 if (!adev->pm.dpm_enabled &&
3398 (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
3399 attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
3400 attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3401 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3402 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3403 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3404 attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3405 attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3406 attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3407 attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3408 attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3409 return 0;
3410
3411 /* mask fan attributes if we have no bindings for this asic to expose */
3412 if (((amdgpu_dpm_get_fan_speed_pwm(adev, NULL) == -EOPNOTSUPP) &&
3413 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */
3414 ((amdgpu_dpm_get_fan_control_mode(adev, NULL) == -EOPNOTSUPP) &&
3415 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */
3416 effective_mode &= ~S_IRUGO;
3417
3418 if (((amdgpu_dpm_set_fan_speed_pwm(adev, U32_MAX) == -EOPNOTSUPP) &&
3419 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */
3420 ((amdgpu_dpm_set_fan_control_mode(adev, U32_MAX) == -EOPNOTSUPP) &&
3421 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */
3422 effective_mode &= ~S_IWUSR;
3423
3424 /* not implemented yet for APUs other than GC 10.3.1 (vangogh) and 9.4.3 */
3425 if (((adev->family == AMDGPU_FAMILY_SI) ||
3426 ((adev->flags & AMD_IS_APU) && (gc_ver != IP_VERSION(10, 3, 1)) &&
3427 (gc_ver != IP_VERSION(9, 4, 3)))) &&
3428 (attr == &sensor_dev_attr_power1_cap_max.dev_attr.attr ||
3429 attr == &sensor_dev_attr_power1_cap_min.dev_attr.attr ||
3430 attr == &sensor_dev_attr_power1_cap.dev_attr.attr ||
3431 attr == &sensor_dev_attr_power1_cap_default.dev_attr.attr))
3432 return 0;
3433
3434 /* not implemented yet for APUs having < GC 9.3.0 (Renoir) */
3435 if (((adev->family == AMDGPU_FAMILY_SI) ||
3436 ((adev->flags & AMD_IS_APU) && (gc_ver < IP_VERSION(9, 3, 0)))) &&
3437 (attr == &sensor_dev_attr_power1_average.dev_attr.attr))
3438 return 0;
3439
3440 /* not all products support both average and instantaneous */
3441 if (attr == &sensor_dev_attr_power1_average.dev_attr.attr &&
3442 amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_GPU_AVG_POWER, (void *)&tmp) == -EOPNOTSUPP)
3443 return 0;
3444 if (attr == &sensor_dev_attr_power1_input.dev_attr.attr &&
3445 amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_GPU_INPUT_POWER, (void *)&tmp) == -EOPNOTSUPP)
3446 return 0;
3447
3448 /* hide max/min values if we can't both query and manage the fan */
3449 if (((amdgpu_dpm_set_fan_speed_pwm(adev, U32_MAX) == -EOPNOTSUPP) &&
3450 (amdgpu_dpm_get_fan_speed_pwm(adev, NULL) == -EOPNOTSUPP) &&
3451 (amdgpu_dpm_set_fan_speed_rpm(adev, U32_MAX) == -EOPNOTSUPP) &&
3452 (amdgpu_dpm_get_fan_speed_rpm(adev, NULL) == -EOPNOTSUPP)) &&
3453 (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3454 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
3455 return 0;
3456
3457 if ((amdgpu_dpm_set_fan_speed_rpm(adev, U32_MAX) == -EOPNOTSUPP) &&
3458 (amdgpu_dpm_get_fan_speed_rpm(adev, NULL) == -EOPNOTSUPP) &&
3459 (attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3460 attr == &sensor_dev_attr_fan1_min.dev_attr.attr))
3461 return 0;
3462
3463 if ((adev->family == AMDGPU_FAMILY_SI || /* not implemented yet */
3464 adev->family == AMDGPU_FAMILY_KV || /* not implemented yet */
3465 (gc_ver == IP_VERSION(9, 4, 3))) &&
3466 (attr == &sensor_dev_attr_in0_input.dev_attr.attr ||
3467 attr == &sensor_dev_attr_in0_label.dev_attr.attr))
3468 return 0;
3469
3470 /* only APUs other than gc 9,4,3 have vddnb */
3471 if ((!(adev->flags & AMD_IS_APU) || (gc_ver == IP_VERSION(9, 4, 3))) &&
3472 (attr == &sensor_dev_attr_in1_input.dev_attr.attr ||
3473 attr == &sensor_dev_attr_in1_label.dev_attr.attr))
3474 return 0;
3475
3476 /* no mclk on APUs other than gc 9,4,3*/
3477 if (((adev->flags & AMD_IS_APU) && (gc_ver != IP_VERSION(9, 4, 3))) &&
3478 (attr == &sensor_dev_attr_freq2_input.dev_attr.attr ||
3479 attr == &sensor_dev_attr_freq2_label.dev_attr.attr))
3480 return 0;
3481
3482 if (((adev->flags & AMD_IS_APU) || gc_ver < IP_VERSION(9, 0, 0)) &&
3483 (gc_ver != IP_VERSION(9, 4, 3)) &&
3484 (attr == &sensor_dev_attr_temp2_input.dev_attr.attr ||
3485 attr == &sensor_dev_attr_temp2_label.dev_attr.attr ||
3486 attr == &sensor_dev_attr_temp2_crit.dev_attr.attr ||
3487 attr == &sensor_dev_attr_temp3_input.dev_attr.attr ||
3488 attr == &sensor_dev_attr_temp3_label.dev_attr.attr ||
3489 attr == &sensor_dev_attr_temp3_crit.dev_attr.attr))
3490 return 0;
3491
3492 /* hotspot temperature for gc 9,4,3*/
3493 if (gc_ver == IP_VERSION(9, 4, 3)) {
3494 if (attr == &sensor_dev_attr_temp1_input.dev_attr.attr ||
3495 attr == &sensor_dev_attr_temp1_emergency.dev_attr.attr ||
3496 attr == &sensor_dev_attr_temp1_label.dev_attr.attr)
3497 return 0;
3498
3499 if (attr == &sensor_dev_attr_temp2_emergency.dev_attr.attr ||
3500 attr == &sensor_dev_attr_temp3_emergency.dev_attr.attr)
3501 return attr->mode;
3502 }
3503
3504 /* only SOC15 dGPUs support hotspot and mem temperatures */
3505 if (((adev->flags & AMD_IS_APU) || gc_ver < IP_VERSION(9, 0, 0)) &&
3506 (attr == &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr ||
3507 attr == &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr ||
3508 attr == &sensor_dev_attr_temp1_emergency.dev_attr.attr ||
3509 attr == &sensor_dev_attr_temp2_emergency.dev_attr.attr ||
3510 attr == &sensor_dev_attr_temp3_emergency.dev_attr.attr))
3511 return 0;
3512
3513 /* only Vangogh has fast PPT limit and power labels */
3514 if (!(gc_ver == IP_VERSION(10, 3, 1)) &&
3515 (attr == &sensor_dev_attr_power2_average.dev_attr.attr ||
3516 attr == &sensor_dev_attr_power2_cap_max.dev_attr.attr ||
3517 attr == &sensor_dev_attr_power2_cap_min.dev_attr.attr ||
3518 attr == &sensor_dev_attr_power2_cap.dev_attr.attr ||
3519 attr == &sensor_dev_attr_power2_cap_default.dev_attr.attr ||
3520 attr == &sensor_dev_attr_power2_label.dev_attr.attr))
3521 return 0;
3522
3523 return effective_mode;
3524}
3525
3526static const struct attribute_group hwmon_attrgroup = {
3527 .attrs = hwmon_attributes,
3528 .is_visible = hwmon_attributes_visible,
3529};
3530
3531static const struct attribute_group *hwmon_groups[] = {
3532 &hwmon_attrgroup,
3533 NULL
3534};
3535
3536static int amdgpu_retrieve_od_settings(struct amdgpu_device *adev,
3537 enum pp_clock_type od_type,
3538 char *buf)
3539{
3540 int size = 0;
3541 int ret;
3542
3543 if (amdgpu_in_reset(adev))
3544 return -EPERM;
3545 if (adev->in_suspend && !adev->in_runpm)
3546 return -EPERM;
3547
3548 ret = pm_runtime_get_sync(adev->dev);
3549 if (ret < 0) {
3550 pm_runtime_put_autosuspend(adev->dev);
3551 return ret;
3552 }
3553
3554 size = amdgpu_dpm_print_clock_levels(adev, od_type, buf);
3555 if (size == 0)
3556 size = sysfs_emit(buf, "\n");
3557
3558 pm_runtime_mark_last_busy(adev->dev);
3559 pm_runtime_put_autosuspend(adev->dev);
3560
3561 return size;
3562}
3563
3564static int parse_input_od_command_lines(const char *buf,
3565 size_t count,
3566 u32 *type,
3567 long *params,
3568 uint32_t *num_of_params)
3569{
3570 const char delimiter[3] = {' ', '\n', '\0'};
3571 uint32_t parameter_size = 0;
3572 char buf_cpy[128] = {0};
3573 char *tmp_str, *sub_str;
3574 int ret;
3575
3576 if (count > sizeof(buf_cpy) - 1)
3577 return -EINVAL;
3578
3579 memcpy(buf_cpy, buf, count);
3580 tmp_str = buf_cpy;
3581
3582 /* skip heading spaces */
3583 while (isspace(*tmp_str))
3584 tmp_str++;
3585
3586 switch (*tmp_str) {
3587 case 'c':
3588 *type = PP_OD_COMMIT_DPM_TABLE;
3589 return 0;
3590 case 'r':
3591 params[parameter_size] = *type;
3592 *num_of_params = 1;
3593 *type = PP_OD_RESTORE_DEFAULT_TABLE;
3594 return 0;
3595 default:
3596 break;
3597 }
3598
3599 while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
3600 if (strlen(sub_str) == 0)
3601 continue;
3602
3603 ret = kstrtol(sub_str, 0, ¶ms[parameter_size]);
3604 if (ret)
3605 return -EINVAL;
3606 parameter_size++;
3607
3608 while (isspace(*tmp_str))
3609 tmp_str++;
3610 }
3611
3612 *num_of_params = parameter_size;
3613
3614 return 0;
3615}
3616
3617static int
3618amdgpu_distribute_custom_od_settings(struct amdgpu_device *adev,
3619 enum PP_OD_DPM_TABLE_COMMAND cmd_type,
3620 const char *in_buf,
3621 size_t count)
3622{
3623 uint32_t parameter_size = 0;
3624 long parameter[64];
3625 int ret;
3626
3627 if (amdgpu_in_reset(adev))
3628 return -EPERM;
3629 if (adev->in_suspend && !adev->in_runpm)
3630 return -EPERM;
3631
3632 ret = parse_input_od_command_lines(in_buf,
3633 count,
3634 &cmd_type,
3635 parameter,
3636 ¶meter_size);
3637 if (ret)
3638 return ret;
3639
3640 ret = pm_runtime_get_sync(adev->dev);
3641 if (ret < 0)
3642 goto err_out0;
3643
3644 ret = amdgpu_dpm_odn_edit_dpm_table(adev,
3645 cmd_type,
3646 parameter,
3647 parameter_size);
3648 if (ret)
3649 goto err_out1;
3650
3651 if (cmd_type == PP_OD_COMMIT_DPM_TABLE) {
3652 ret = amdgpu_dpm_dispatch_task(adev,
3653 AMD_PP_TASK_READJUST_POWER_STATE,
3654 NULL);
3655 if (ret)
3656 goto err_out1;
3657 }
3658
3659 pm_runtime_mark_last_busy(adev->dev);
3660 pm_runtime_put_autosuspend(adev->dev);
3661
3662 return count;
3663
3664err_out1:
3665 pm_runtime_mark_last_busy(adev->dev);
3666err_out0:
3667 pm_runtime_put_autosuspend(adev->dev);
3668
3669 return ret;
3670}
3671
3672/**
3673 * DOC: fan_curve
3674 *
3675 * The amdgpu driver provides a sysfs API for checking and adjusting the fan
3676 * control curve line.
3677 *
3678 * Reading back the file shows you the current settings(temperature in Celsius
3679 * degree and fan speed in pwm) applied to every anchor point of the curve line
3680 * and their permitted ranges if changable.
3681 *
3682 * Writing a desired string(with the format like "anchor_point_index temperature
3683 * fan_speed_in_pwm") to the file, change the settings for the specific anchor
3684 * point accordingly.
3685 *
3686 * When you have finished the editing, write "c" (commit) to the file to commit
3687 * your changes.
3688 *
3689 * If you want to reset to the default value, write "r" (reset) to the file to
3690 * reset them
3691 *
3692 * There are two fan control modes supported: auto and manual. With auto mode,
3693 * PMFW handles the fan speed control(how fan speed reacts to ASIC temperature).
3694 * While with manual mode, users can set their own fan curve line as what
3695 * described here. Normally the ASIC is booted up with auto mode. Any
3696 * settings via this interface will switch the fan control to manual mode
3697 * implicitly.
3698 */
3699static ssize_t fan_curve_show(struct kobject *kobj,
3700 struct kobj_attribute *attr,
3701 char *buf)
3702{
3703 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3704 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3705
3706 return (ssize_t)amdgpu_retrieve_od_settings(adev, OD_FAN_CURVE, buf);
3707}
3708
3709static ssize_t fan_curve_store(struct kobject *kobj,
3710 struct kobj_attribute *attr,
3711 const char *buf,
3712 size_t count)
3713{
3714 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3715 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3716
3717 return (ssize_t)amdgpu_distribute_custom_od_settings(adev,
3718 PP_OD_EDIT_FAN_CURVE,
3719 buf,
3720 count);
3721}
3722
3723static umode_t fan_curve_visible(struct amdgpu_device *adev)
3724{
3725 umode_t umode = 0000;
3726
3727 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_CURVE_RETRIEVE)
3728 umode |= S_IRUSR | S_IRGRP | S_IROTH;
3729
3730 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_CURVE_SET)
3731 umode |= S_IWUSR;
3732
3733 return umode;
3734}
3735
3736/**
3737 * DOC: acoustic_limit_rpm_threshold
3738 *
3739 * The amdgpu driver provides a sysfs API for checking and adjusting the
3740 * acoustic limit in RPM for fan control.
3741 *
3742 * Reading back the file shows you the current setting and the permitted
3743 * ranges if changable.
3744 *
3745 * Writing an integer to the file, change the setting accordingly.
3746 *
3747 * When you have finished the editing, write "c" (commit) to the file to commit
3748 * your changes.
3749 *
3750 * If you want to reset to the default value, write "r" (reset) to the file to
3751 * reset them
3752 *
3753 * This setting works under auto fan control mode only. It adjusts the PMFW's
3754 * behavior about the maximum speed in RPM the fan can spin. Setting via this
3755 * interface will switch the fan control to auto mode implicitly.
3756 */
3757static ssize_t acoustic_limit_threshold_show(struct kobject *kobj,
3758 struct kobj_attribute *attr,
3759 char *buf)
3760{
3761 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3762 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3763
3764 return (ssize_t)amdgpu_retrieve_od_settings(adev, OD_ACOUSTIC_LIMIT, buf);
3765}
3766
3767static ssize_t acoustic_limit_threshold_store(struct kobject *kobj,
3768 struct kobj_attribute *attr,
3769 const char *buf,
3770 size_t count)
3771{
3772 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3773 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3774
3775 return (ssize_t)amdgpu_distribute_custom_od_settings(adev,
3776 PP_OD_EDIT_ACOUSTIC_LIMIT,
3777 buf,
3778 count);
3779}
3780
3781static umode_t acoustic_limit_threshold_visible(struct amdgpu_device *adev)
3782{
3783 umode_t umode = 0000;
3784
3785 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_RETRIEVE)
3786 umode |= S_IRUSR | S_IRGRP | S_IROTH;
3787
3788 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET)
3789 umode |= S_IWUSR;
3790
3791 return umode;
3792}
3793
3794/**
3795 * DOC: acoustic_target_rpm_threshold
3796 *
3797 * The amdgpu driver provides a sysfs API for checking and adjusting the
3798 * acoustic target in RPM for fan control.
3799 *
3800 * Reading back the file shows you the current setting and the permitted
3801 * ranges if changable.
3802 *
3803 * Writing an integer to the file, change the setting accordingly.
3804 *
3805 * When you have finished the editing, write "c" (commit) to the file to commit
3806 * your changes.
3807 *
3808 * If you want to reset to the default value, write "r" (reset) to the file to
3809 * reset them
3810 *
3811 * This setting works under auto fan control mode only. It can co-exist with
3812 * other settings which can work also under auto mode. It adjusts the PMFW's
3813 * behavior about the maximum speed in RPM the fan can spin when ASIC
3814 * temperature is not greater than target temperature. Setting via this
3815 * interface will switch the fan control to auto mode implicitly.
3816 */
3817static ssize_t acoustic_target_threshold_show(struct kobject *kobj,
3818 struct kobj_attribute *attr,
3819 char *buf)
3820{
3821 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3822 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3823
3824 return (ssize_t)amdgpu_retrieve_od_settings(adev, OD_ACOUSTIC_TARGET, buf);
3825}
3826
3827static ssize_t acoustic_target_threshold_store(struct kobject *kobj,
3828 struct kobj_attribute *attr,
3829 const char *buf,
3830 size_t count)
3831{
3832 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3833 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3834
3835 return (ssize_t)amdgpu_distribute_custom_od_settings(adev,
3836 PP_OD_EDIT_ACOUSTIC_TARGET,
3837 buf,
3838 count);
3839}
3840
3841static umode_t acoustic_target_threshold_visible(struct amdgpu_device *adev)
3842{
3843 umode_t umode = 0000;
3844
3845 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE)
3846 umode |= S_IRUSR | S_IRGRP | S_IROTH;
3847
3848 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET)
3849 umode |= S_IWUSR;
3850
3851 return umode;
3852}
3853
3854/**
3855 * DOC: fan_target_temperature
3856 *
3857 * The amdgpu driver provides a sysfs API for checking and adjusting the
3858 * target tempeature in Celsius degree for fan control.
3859 *
3860 * Reading back the file shows you the current setting and the permitted
3861 * ranges if changable.
3862 *
3863 * Writing an integer to the file, change the setting accordingly.
3864 *
3865 * When you have finished the editing, write "c" (commit) to the file to commit
3866 * your changes.
3867 *
3868 * If you want to reset to the default value, write "r" (reset) to the file to
3869 * reset them
3870 *
3871 * This setting works under auto fan control mode only. It can co-exist with
3872 * other settings which can work also under auto mode. Paring with the
3873 * acoustic_target_rpm_threshold setting, they define the maximum speed in
3874 * RPM the fan can spin when ASIC temperature is not greater than target
3875 * temperature. Setting via this interface will switch the fan control to
3876 * auto mode implicitly.
3877 */
3878static ssize_t fan_target_temperature_show(struct kobject *kobj,
3879 struct kobj_attribute *attr,
3880 char *buf)
3881{
3882 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3883 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3884
3885 return (ssize_t)amdgpu_retrieve_od_settings(adev, OD_FAN_TARGET_TEMPERATURE, buf);
3886}
3887
3888static ssize_t fan_target_temperature_store(struct kobject *kobj,
3889 struct kobj_attribute *attr,
3890 const char *buf,
3891 size_t count)
3892{
3893 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3894 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3895
3896 return (ssize_t)amdgpu_distribute_custom_od_settings(adev,
3897 PP_OD_EDIT_FAN_TARGET_TEMPERATURE,
3898 buf,
3899 count);
3900}
3901
3902static umode_t fan_target_temperature_visible(struct amdgpu_device *adev)
3903{
3904 umode_t umode = 0000;
3905
3906 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE)
3907 umode |= S_IRUSR | S_IRGRP | S_IROTH;
3908
3909 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET)
3910 umode |= S_IWUSR;
3911
3912 return umode;
3913}
3914
3915/**
3916 * DOC: fan_minimum_pwm
3917 *
3918 * The amdgpu driver provides a sysfs API for checking and adjusting the
3919 * minimum fan speed in PWM.
3920 *
3921 * Reading back the file shows you the current setting and the permitted
3922 * ranges if changable.
3923 *
3924 * Writing an integer to the file, change the setting accordingly.
3925 *
3926 * When you have finished the editing, write "c" (commit) to the file to commit
3927 * your changes.
3928 *
3929 * If you want to reset to the default value, write "r" (reset) to the file to
3930 * reset them
3931 *
3932 * This setting works under auto fan control mode only. It can co-exist with
3933 * other settings which can work also under auto mode. It adjusts the PMFW's
3934 * behavior about the minimum fan speed in PWM the fan should spin. Setting
3935 * via this interface will switch the fan control to auto mode implicitly.
3936 */
3937static ssize_t fan_minimum_pwm_show(struct kobject *kobj,
3938 struct kobj_attribute *attr,
3939 char *buf)
3940{
3941 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3942 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3943
3944 return (ssize_t)amdgpu_retrieve_od_settings(adev, OD_FAN_MINIMUM_PWM, buf);
3945}
3946
3947static ssize_t fan_minimum_pwm_store(struct kobject *kobj,
3948 struct kobj_attribute *attr,
3949 const char *buf,
3950 size_t count)
3951{
3952 struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
3953 struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
3954
3955 return (ssize_t)amdgpu_distribute_custom_od_settings(adev,
3956 PP_OD_EDIT_FAN_MINIMUM_PWM,
3957 buf,
3958 count);
3959}
3960
3961static umode_t fan_minimum_pwm_visible(struct amdgpu_device *adev)
3962{
3963 umode_t umode = 0000;
3964
3965 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE)
3966 umode |= S_IRUSR | S_IRGRP | S_IROTH;
3967
3968 if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET)
3969 umode |= S_IWUSR;
3970
3971 return umode;
3972}
3973
3974static struct od_feature_set amdgpu_od_set = {
3975 .containers = {
3976 [0] = {
3977 .name = "fan_ctrl",
3978 .sub_feature = {
3979 [0] = {
3980 .name = "fan_curve",
3981 .ops = {
3982 .is_visible = fan_curve_visible,
3983 .show = fan_curve_show,
3984 .store = fan_curve_store,
3985 },
3986 },
3987 [1] = {
3988 .name = "acoustic_limit_rpm_threshold",
3989 .ops = {
3990 .is_visible = acoustic_limit_threshold_visible,
3991 .show = acoustic_limit_threshold_show,
3992 .store = acoustic_limit_threshold_store,
3993 },
3994 },
3995 [2] = {
3996 .name = "acoustic_target_rpm_threshold",
3997 .ops = {
3998 .is_visible = acoustic_target_threshold_visible,
3999 .show = acoustic_target_threshold_show,
4000 .store = acoustic_target_threshold_store,
4001 },
4002 },
4003 [3] = {
4004 .name = "fan_target_temperature",
4005 .ops = {
4006 .is_visible = fan_target_temperature_visible,
4007 .show = fan_target_temperature_show,
4008 .store = fan_target_temperature_store,
4009 },
4010 },
4011 [4] = {
4012 .name = "fan_minimum_pwm",
4013 .ops = {
4014 .is_visible = fan_minimum_pwm_visible,
4015 .show = fan_minimum_pwm_show,
4016 .store = fan_minimum_pwm_store,
4017 },
4018 },
4019 },
4020 },
4021 },
4022};
4023
4024static void od_kobj_release(struct kobject *kobj)
4025{
4026 struct od_kobj *od_kobj = container_of(kobj, struct od_kobj, kobj);
4027
4028 kfree(od_kobj);
4029}
4030
4031static const struct kobj_type od_ktype = {
4032 .release = od_kobj_release,
4033 .sysfs_ops = &kobj_sysfs_ops,
4034};
4035
4036static void amdgpu_od_set_fini(struct amdgpu_device *adev)
4037{
4038 struct od_kobj *container, *container_next;
4039 struct od_attribute *attribute, *attribute_next;
4040
4041 if (list_empty(&adev->pm.od_kobj_list))
4042 return;
4043
4044 list_for_each_entry_safe(container, container_next,
4045 &adev->pm.od_kobj_list, entry) {
4046 list_del(&container->entry);
4047
4048 list_for_each_entry_safe(attribute, attribute_next,
4049 &container->attribute, entry) {
4050 list_del(&attribute->entry);
4051 sysfs_remove_file(&container->kobj,
4052 &attribute->attribute.attr);
4053 kfree(attribute);
4054 }
4055
4056 kobject_put(&container->kobj);
4057 }
4058}
4059
4060static bool amdgpu_is_od_feature_supported(struct amdgpu_device *adev,
4061 struct od_feature_ops *feature_ops)
4062{
4063 umode_t mode;
4064
4065 if (!feature_ops->is_visible)
4066 return false;
4067
4068 /*
4069 * If the feature has no user read and write mode set,
4070 * we can assume the feature is actually not supported.(?)
4071 * And the revelant sysfs interface should not be exposed.
4072 */
4073 mode = feature_ops->is_visible(adev);
4074 if (mode & (S_IRUSR | S_IWUSR))
4075 return true;
4076
4077 return false;
4078}
4079
4080static bool amdgpu_od_is_self_contained(struct amdgpu_device *adev,
4081 struct od_feature_container *container)
4082{
4083 int i;
4084
4085 /*
4086 * If there is no valid entry within the container, the container
4087 * is recognized as a self contained container. And the valid entry
4088 * here means it has a valid naming and it is visible/supported by
4089 * the ASIC.
4090 */
4091 for (i = 0; i < ARRAY_SIZE(container->sub_feature); i++) {
4092 if (container->sub_feature[i].name &&
4093 amdgpu_is_od_feature_supported(adev,
4094 &container->sub_feature[i].ops))
4095 return false;
4096 }
4097
4098 return true;
4099}
4100
4101static int amdgpu_od_set_init(struct amdgpu_device *adev)
4102{
4103 struct od_kobj *top_set, *sub_set;
4104 struct od_attribute *attribute;
4105 struct od_feature_container *container;
4106 struct od_feature_item *feature;
4107 int i, j;
4108 int ret;
4109
4110 /* Setup the top `gpu_od` directory which holds all other OD interfaces */
4111 top_set = kzalloc(sizeof(*top_set), GFP_KERNEL);
4112 if (!top_set)
4113 return -ENOMEM;
4114 list_add(&top_set->entry, &adev->pm.od_kobj_list);
4115
4116 ret = kobject_init_and_add(&top_set->kobj,
4117 &od_ktype,
4118 &adev->dev->kobj,
4119 "%s",
4120 "gpu_od");
4121 if (ret)
4122 goto err_out;
4123 INIT_LIST_HEAD(&top_set->attribute);
4124 top_set->priv = adev;
4125
4126 for (i = 0; i < ARRAY_SIZE(amdgpu_od_set.containers); i++) {
4127 container = &amdgpu_od_set.containers[i];
4128
4129 if (!container->name)
4130 continue;
4131
4132 /*
4133 * If there is valid entries within the container, the container
4134 * will be presented as a sub directory and all its holding entries
4135 * will be presented as plain files under it.
4136 * While if there is no valid entry within the container, the container
4137 * itself will be presented as a plain file under top `gpu_od` directory.
4138 */
4139 if (amdgpu_od_is_self_contained(adev, container)) {
4140 if (!amdgpu_is_od_feature_supported(adev,
4141 &container->ops))
4142 continue;
4143
4144 /*
4145 * The container is presented as a plain file under top `gpu_od`
4146 * directory.
4147 */
4148 attribute = kzalloc(sizeof(*attribute), GFP_KERNEL);
4149 if (!attribute) {
4150 ret = -ENOMEM;
4151 goto err_out;
4152 }
4153 list_add(&attribute->entry, &top_set->attribute);
4154
4155 attribute->attribute.attr.mode =
4156 container->ops.is_visible(adev);
4157 attribute->attribute.attr.name = container->name;
4158 attribute->attribute.show =
4159 container->ops.show;
4160 attribute->attribute.store =
4161 container->ops.store;
4162 ret = sysfs_create_file(&top_set->kobj,
4163 &attribute->attribute.attr);
4164 if (ret)
4165 goto err_out;
4166 } else {
4167 /* The container is presented as a sub directory. */
4168 sub_set = kzalloc(sizeof(*sub_set), GFP_KERNEL);
4169 if (!sub_set) {
4170 ret = -ENOMEM;
4171 goto err_out;
4172 }
4173 list_add(&sub_set->entry, &adev->pm.od_kobj_list);
4174
4175 ret = kobject_init_and_add(&sub_set->kobj,
4176 &od_ktype,
4177 &top_set->kobj,
4178 "%s",
4179 container->name);
4180 if (ret)
4181 goto err_out;
4182 INIT_LIST_HEAD(&sub_set->attribute);
4183 sub_set->priv = adev;
4184
4185 for (j = 0; j < ARRAY_SIZE(container->sub_feature); j++) {
4186 feature = &container->sub_feature[j];
4187 if (!feature->name)
4188 continue;
4189
4190 if (!amdgpu_is_od_feature_supported(adev,
4191 &feature->ops))
4192 continue;
4193
4194 /*
4195 * With the container presented as a sub directory, the entry within
4196 * it is presented as a plain file under the sub directory.
4197 */
4198 attribute = kzalloc(sizeof(*attribute), GFP_KERNEL);
4199 if (!attribute) {
4200 ret = -ENOMEM;
4201 goto err_out;
4202 }
4203 list_add(&attribute->entry, &sub_set->attribute);
4204
4205 attribute->attribute.attr.mode =
4206 feature->ops.is_visible(adev);
4207 attribute->attribute.attr.name = feature->name;
4208 attribute->attribute.show =
4209 feature->ops.show;
4210 attribute->attribute.store =
4211 feature->ops.store;
4212 ret = sysfs_create_file(&sub_set->kobj,
4213 &attribute->attribute.attr);
4214 if (ret)
4215 goto err_out;
4216 }
4217 }
4218 }
4219
4220 return 0;
4221
4222err_out:
4223 amdgpu_od_set_fini(adev);
4224
4225 return ret;
4226}
4227
4228int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
4229{
4230 enum amdgpu_sriov_vf_mode mode;
4231 uint32_t mask = 0;
4232 int ret;
4233
4234 if (adev->pm.sysfs_initialized)
4235 return 0;
4236
4237 INIT_LIST_HEAD(&adev->pm.pm_attr_list);
4238
4239 if (adev->pm.dpm_enabled == 0)
4240 return 0;
4241
4242 mode = amdgpu_virt_get_sriov_vf_mode(adev);
4243
4244 /* under multi-vf mode, the hwmon attributes are all not supported */
4245 if (mode != SRIOV_VF_MODE_MULTI_VF) {
4246 adev->pm.int_hwmon_dev = hwmon_device_register_with_groups(adev->dev,
4247 DRIVER_NAME, adev,
4248 hwmon_groups);
4249 if (IS_ERR(adev->pm.int_hwmon_dev)) {
4250 ret = PTR_ERR(adev->pm.int_hwmon_dev);
4251 dev_err(adev->dev, "Unable to register hwmon device: %d\n", ret);
4252 return ret;
4253 }
4254 }
4255
4256 switch (mode) {
4257 case SRIOV_VF_MODE_ONE_VF:
4258 mask = ATTR_FLAG_ONEVF;
4259 break;
4260 case SRIOV_VF_MODE_MULTI_VF:
4261 mask = 0;
4262 break;
4263 case SRIOV_VF_MODE_BARE_METAL:
4264 default:
4265 mask = ATTR_FLAG_MASK_ALL;
4266 break;
4267 }
4268
4269 ret = amdgpu_device_attr_create_groups(adev,
4270 amdgpu_device_attrs,
4271 ARRAY_SIZE(amdgpu_device_attrs),
4272 mask,
4273 &adev->pm.pm_attr_list);
4274 if (ret)
4275 goto err_out0;
4276
4277 if (amdgpu_dpm_is_overdrive_supported(adev)) {
4278 ret = amdgpu_od_set_init(adev);
4279 if (ret)
4280 goto err_out1;
4281 }
4282
4283 adev->pm.sysfs_initialized = true;
4284
4285 return 0;
4286
4287err_out1:
4288 amdgpu_device_attr_remove_groups(adev, &adev->pm.pm_attr_list);
4289err_out0:
4290 if (adev->pm.int_hwmon_dev)
4291 hwmon_device_unregister(adev->pm.int_hwmon_dev);
4292
4293 return ret;
4294}
4295
4296void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev)
4297{
4298 amdgpu_od_set_fini(adev);
4299
4300 if (adev->pm.int_hwmon_dev)
4301 hwmon_device_unregister(adev->pm.int_hwmon_dev);
4302
4303 amdgpu_device_attr_remove_groups(adev, &adev->pm.pm_attr_list);
4304}
4305
4306/*
4307 * Debugfs info
4308 */
4309#if defined(CONFIG_DEBUG_FS)
4310
4311static void amdgpu_debugfs_prints_cpu_info(struct seq_file *m,
4312 struct amdgpu_device *adev)
4313{
4314 uint16_t *p_val;
4315 uint32_t size;
4316 int i;
4317 uint32_t num_cpu_cores = amdgpu_dpm_get_num_cpu_cores(adev);
4318
4319 if (amdgpu_dpm_is_cclk_dpm_supported(adev)) {
4320 p_val = kcalloc(num_cpu_cores, sizeof(uint16_t),
4321 GFP_KERNEL);
4322
4323 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_CPU_CLK,
4324 (void *)p_val, &size)) {
4325 for (i = 0; i < num_cpu_cores; i++)
4326 seq_printf(m, "\t%u MHz (CPU%d)\n",
4327 *(p_val + i), i);
4328 }
4329
4330 kfree(p_val);
4331 }
4332}
4333
4334static int amdgpu_debugfs_pm_info_pp(struct seq_file *m, struct amdgpu_device *adev)
4335{
4336 uint32_t mp1_ver = amdgpu_ip_version(adev, MP1_HWIP, 0);
4337 uint32_t gc_ver = amdgpu_ip_version(adev, GC_HWIP, 0);
4338 uint32_t value;
4339 uint64_t value64 = 0;
4340 uint32_t query = 0;
4341 int size;
4342
4343 /* GPU Clocks */
4344 size = sizeof(value);
4345 seq_printf(m, "GFX Clocks and Power:\n");
4346
4347 amdgpu_debugfs_prints_cpu_info(m, adev);
4348
4349 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_MCLK, (void *)&value, &size))
4350 seq_printf(m, "\t%u MHz (MCLK)\n", value/100);
4351 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_SCLK, (void *)&value, &size))
4352 seq_printf(m, "\t%u MHz (SCLK)\n", value/100);
4353 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK, (void *)&value, &size))
4354 seq_printf(m, "\t%u MHz (PSTATE_SCLK)\n", value/100);
4355 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK, (void *)&value, &size))
4356 seq_printf(m, "\t%u MHz (PSTATE_MCLK)\n", value/100);
4357 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX, (void *)&value, &size))
4358 seq_printf(m, "\t%u mV (VDDGFX)\n", value);
4359 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB, (void *)&value, &size))
4360 seq_printf(m, "\t%u mV (VDDNB)\n", value);
4361 size = sizeof(uint32_t);
4362 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_AVG_POWER, (void *)&query, &size)) {
4363 if (adev->flags & AMD_IS_APU)
4364 seq_printf(m, "\t%u.%02u W (average SoC including CPU)\n", query >> 8, query & 0xff);
4365 else
4366 seq_printf(m, "\t%u.%02u W (average SoC)\n", query >> 8, query & 0xff);
4367 }
4368 size = sizeof(uint32_t);
4369 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_INPUT_POWER, (void *)&query, &size)) {
4370 if (adev->flags & AMD_IS_APU)
4371 seq_printf(m, "\t%u.%02u W (current SoC including CPU)\n", query >> 8, query & 0xff);
4372 else
4373 seq_printf(m, "\t%u.%02u W (current SoC)\n", query >> 8, query & 0xff);
4374 }
4375 size = sizeof(value);
4376 seq_printf(m, "\n");
4377
4378 /* GPU Temp */
4379 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP, (void *)&value, &size))
4380 seq_printf(m, "GPU Temperature: %u C\n", value/1000);
4381
4382 /* GPU Load */
4383 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD, (void *)&value, &size))
4384 seq_printf(m, "GPU Load: %u %%\n", value);
4385 /* MEM Load */
4386 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_LOAD, (void *)&value, &size))
4387 seq_printf(m, "MEM Load: %u %%\n", value);
4388
4389 seq_printf(m, "\n");
4390
4391 /* SMC feature mask */
4392 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_ENABLED_SMC_FEATURES_MASK, (void *)&value64, &size))
4393 seq_printf(m, "SMC Feature Mask: 0x%016llx\n", value64);
4394
4395 /* ASICs greater than CHIP_VEGA20 supports these sensors */
4396 if (gc_ver != IP_VERSION(9, 4, 0) && mp1_ver > IP_VERSION(9, 0, 0)) {
4397 /* VCN clocks */
4398 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCN_POWER_STATE, (void *)&value, &size)) {
4399 if (!value) {
4400 seq_printf(m, "VCN: Powered down\n");
4401 } else {
4402 seq_printf(m, "VCN: Powered up\n");
4403 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_DCLK, (void *)&value, &size))
4404 seq_printf(m, "\t%u MHz (DCLK)\n", value/100);
4405 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_VCLK, (void *)&value, &size))
4406 seq_printf(m, "\t%u MHz (VCLK)\n", value/100);
4407 }
4408 }
4409 seq_printf(m, "\n");
4410 } else {
4411 /* UVD clocks */
4412 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_POWER, (void *)&value, &size)) {
4413 if (!value) {
4414 seq_printf(m, "UVD: Powered down\n");
4415 } else {
4416 seq_printf(m, "UVD: Powered up\n");
4417 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_DCLK, (void *)&value, &size))
4418 seq_printf(m, "\t%u MHz (DCLK)\n", value/100);
4419 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_VCLK, (void *)&value, &size))
4420 seq_printf(m, "\t%u MHz (VCLK)\n", value/100);
4421 }
4422 }
4423 seq_printf(m, "\n");
4424
4425 /* VCE clocks */
4426 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_POWER, (void *)&value, &size)) {
4427 if (!value) {
4428 seq_printf(m, "VCE: Powered down\n");
4429 } else {
4430 seq_printf(m, "VCE: Powered up\n");
4431 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_ECCLK, (void *)&value, &size))
4432 seq_printf(m, "\t%u MHz (ECCLK)\n", value/100);
4433 }
4434 }
4435 }
4436
4437 return 0;
4438}
4439
4440static const struct cg_flag_name clocks[] = {
4441 {AMD_CG_SUPPORT_GFX_FGCG, "Graphics Fine Grain Clock Gating"},
4442 {AMD_CG_SUPPORT_GFX_MGCG, "Graphics Medium Grain Clock Gating"},
4443 {AMD_CG_SUPPORT_GFX_MGLS, "Graphics Medium Grain memory Light Sleep"},
4444 {AMD_CG_SUPPORT_GFX_CGCG, "Graphics Coarse Grain Clock Gating"},
4445 {AMD_CG_SUPPORT_GFX_CGLS, "Graphics Coarse Grain memory Light Sleep"},
4446 {AMD_CG_SUPPORT_GFX_CGTS, "Graphics Coarse Grain Tree Shader Clock Gating"},
4447 {AMD_CG_SUPPORT_GFX_CGTS_LS, "Graphics Coarse Grain Tree Shader Light Sleep"},
4448 {AMD_CG_SUPPORT_GFX_CP_LS, "Graphics Command Processor Light Sleep"},
4449 {AMD_CG_SUPPORT_GFX_RLC_LS, "Graphics Run List Controller Light Sleep"},
4450 {AMD_CG_SUPPORT_GFX_3D_CGCG, "Graphics 3D Coarse Grain Clock Gating"},
4451 {AMD_CG_SUPPORT_GFX_3D_CGLS, "Graphics 3D Coarse Grain memory Light Sleep"},
4452 {AMD_CG_SUPPORT_MC_LS, "Memory Controller Light Sleep"},
4453 {AMD_CG_SUPPORT_MC_MGCG, "Memory Controller Medium Grain Clock Gating"},
4454 {AMD_CG_SUPPORT_SDMA_LS, "System Direct Memory Access Light Sleep"},
4455 {AMD_CG_SUPPORT_SDMA_MGCG, "System Direct Memory Access Medium Grain Clock Gating"},
4456 {AMD_CG_SUPPORT_BIF_MGCG, "Bus Interface Medium Grain Clock Gating"},
4457 {AMD_CG_SUPPORT_BIF_LS, "Bus Interface Light Sleep"},
4458 {AMD_CG_SUPPORT_UVD_MGCG, "Unified Video Decoder Medium Grain Clock Gating"},
4459 {AMD_CG_SUPPORT_VCE_MGCG, "Video Compression Engine Medium Grain Clock Gating"},
4460 {AMD_CG_SUPPORT_HDP_LS, "Host Data Path Light Sleep"},
4461 {AMD_CG_SUPPORT_HDP_MGCG, "Host Data Path Medium Grain Clock Gating"},
4462 {AMD_CG_SUPPORT_DRM_MGCG, "Digital Right Management Medium Grain Clock Gating"},
4463 {AMD_CG_SUPPORT_DRM_LS, "Digital Right Management Light Sleep"},
4464 {AMD_CG_SUPPORT_ROM_MGCG, "Rom Medium Grain Clock Gating"},
4465 {AMD_CG_SUPPORT_DF_MGCG, "Data Fabric Medium Grain Clock Gating"},
4466 {AMD_CG_SUPPORT_VCN_MGCG, "VCN Medium Grain Clock Gating"},
4467 {AMD_CG_SUPPORT_HDP_DS, "Host Data Path Deep Sleep"},
4468 {AMD_CG_SUPPORT_HDP_SD, "Host Data Path Shutdown"},
4469 {AMD_CG_SUPPORT_IH_CG, "Interrupt Handler Clock Gating"},
4470 {AMD_CG_SUPPORT_JPEG_MGCG, "JPEG Medium Grain Clock Gating"},
4471 {AMD_CG_SUPPORT_REPEATER_FGCG, "Repeater Fine Grain Clock Gating"},
4472 {AMD_CG_SUPPORT_GFX_PERF_CLK, "Perfmon Clock Gating"},
4473 {AMD_CG_SUPPORT_ATHUB_MGCG, "Address Translation Hub Medium Grain Clock Gating"},
4474 {AMD_CG_SUPPORT_ATHUB_LS, "Address Translation Hub Light Sleep"},
4475 {0, NULL},
4476};
4477
4478static void amdgpu_parse_cg_state(struct seq_file *m, u64 flags)
4479{
4480 int i;
4481
4482 for (i = 0; clocks[i].flag; i++)
4483 seq_printf(m, "\t%s: %s\n", clocks[i].name,
4484 (flags & clocks[i].flag) ? "On" : "Off");
4485}
4486
4487static int amdgpu_debugfs_pm_info_show(struct seq_file *m, void *unused)
4488{
4489 struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
4490 struct drm_device *dev = adev_to_drm(adev);
4491 u64 flags = 0;
4492 int r;
4493
4494 if (amdgpu_in_reset(adev))
4495 return -EPERM;
4496 if (adev->in_suspend && !adev->in_runpm)
4497 return -EPERM;
4498
4499 r = pm_runtime_get_sync(dev->dev);
4500 if (r < 0) {
4501 pm_runtime_put_autosuspend(dev->dev);
4502 return r;
4503 }
4504
4505 if (amdgpu_dpm_debugfs_print_current_performance_level(adev, m)) {
4506 r = amdgpu_debugfs_pm_info_pp(m, adev);
4507 if (r)
4508 goto out;
4509 }
4510
4511 amdgpu_device_ip_get_clockgating_state(adev, &flags);
4512
4513 seq_printf(m, "Clock Gating Flags Mask: 0x%llx\n", flags);
4514 amdgpu_parse_cg_state(m, flags);
4515 seq_printf(m, "\n");
4516
4517out:
4518 pm_runtime_mark_last_busy(dev->dev);
4519 pm_runtime_put_autosuspend(dev->dev);
4520
4521 return r;
4522}
4523
4524DEFINE_SHOW_ATTRIBUTE(amdgpu_debugfs_pm_info);
4525
4526/*
4527 * amdgpu_pm_priv_buffer_read - Read memory region allocated to FW
4528 *
4529 * Reads debug memory region allocated to PMFW
4530 */
4531static ssize_t amdgpu_pm_prv_buffer_read(struct file *f, char __user *buf,
4532 size_t size, loff_t *pos)
4533{
4534 struct amdgpu_device *adev = file_inode(f)->i_private;
4535 size_t smu_prv_buf_size;
4536 void *smu_prv_buf;
4537 int ret = 0;
4538
4539 if (amdgpu_in_reset(adev))
4540 return -EPERM;
4541 if (adev->in_suspend && !adev->in_runpm)
4542 return -EPERM;
4543
4544 ret = amdgpu_dpm_get_smu_prv_buf_details(adev, &smu_prv_buf, &smu_prv_buf_size);
4545 if (ret)
4546 return ret;
4547
4548 if (!smu_prv_buf || !smu_prv_buf_size)
4549 return -EINVAL;
4550
4551 return simple_read_from_buffer(buf, size, pos, smu_prv_buf,
4552 smu_prv_buf_size);
4553}
4554
4555static const struct file_operations amdgpu_debugfs_pm_prv_buffer_fops = {
4556 .owner = THIS_MODULE,
4557 .open = simple_open,
4558 .read = amdgpu_pm_prv_buffer_read,
4559 .llseek = default_llseek,
4560};
4561
4562#endif
4563
4564void amdgpu_debugfs_pm_init(struct amdgpu_device *adev)
4565{
4566#if defined(CONFIG_DEBUG_FS)
4567 struct drm_minor *minor = adev_to_drm(adev)->primary;
4568 struct dentry *root = minor->debugfs_root;
4569
4570 if (!adev->pm.dpm_enabled)
4571 return;
4572
4573 debugfs_create_file("amdgpu_pm_info", 0444, root, adev,
4574 &amdgpu_debugfs_pm_info_fops);
4575
4576 if (adev->pm.smu_prv_buffer_size > 0)
4577 debugfs_create_file_size("amdgpu_pm_prv_buffer", 0444, root,
4578 adev,
4579 &amdgpu_debugfs_pm_prv_buffer_fops,
4580 adev->pm.smu_prv_buffer_size);
4581
4582 amdgpu_dpm_stb_debug_fs_init(adev);
4583#endif
4584}
1/*
2 * Copyright 2017 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Rafał Miłecki <zajec5@gmail.com>
23 * Alex Deucher <alexdeucher@gmail.com>
24 */
25
26#include "amdgpu.h"
27#include "amdgpu_drv.h"
28#include "amdgpu_pm.h"
29#include "amdgpu_dpm.h"
30#include "atom.h"
31#include <linux/pci.h>
32#include <linux/hwmon.h>
33#include <linux/hwmon-sysfs.h>
34#include <linux/nospec.h>
35#include <linux/pm_runtime.h>
36#include <asm/processor.h>
37#include "hwmgr.h"
38
39static const struct cg_flag_name clocks[] = {
40 {AMD_CG_SUPPORT_GFX_FGCG, "Graphics Fine Grain Clock Gating"},
41 {AMD_CG_SUPPORT_GFX_MGCG, "Graphics Medium Grain Clock Gating"},
42 {AMD_CG_SUPPORT_GFX_MGLS, "Graphics Medium Grain memory Light Sleep"},
43 {AMD_CG_SUPPORT_GFX_CGCG, "Graphics Coarse Grain Clock Gating"},
44 {AMD_CG_SUPPORT_GFX_CGLS, "Graphics Coarse Grain memory Light Sleep"},
45 {AMD_CG_SUPPORT_GFX_CGTS, "Graphics Coarse Grain Tree Shader Clock Gating"},
46 {AMD_CG_SUPPORT_GFX_CGTS_LS, "Graphics Coarse Grain Tree Shader Light Sleep"},
47 {AMD_CG_SUPPORT_GFX_CP_LS, "Graphics Command Processor Light Sleep"},
48 {AMD_CG_SUPPORT_GFX_RLC_LS, "Graphics Run List Controller Light Sleep"},
49 {AMD_CG_SUPPORT_GFX_3D_CGCG, "Graphics 3D Coarse Grain Clock Gating"},
50 {AMD_CG_SUPPORT_GFX_3D_CGLS, "Graphics 3D Coarse Grain memory Light Sleep"},
51 {AMD_CG_SUPPORT_MC_LS, "Memory Controller Light Sleep"},
52 {AMD_CG_SUPPORT_MC_MGCG, "Memory Controller Medium Grain Clock Gating"},
53 {AMD_CG_SUPPORT_SDMA_LS, "System Direct Memory Access Light Sleep"},
54 {AMD_CG_SUPPORT_SDMA_MGCG, "System Direct Memory Access Medium Grain Clock Gating"},
55 {AMD_CG_SUPPORT_BIF_MGCG, "Bus Interface Medium Grain Clock Gating"},
56 {AMD_CG_SUPPORT_BIF_LS, "Bus Interface Light Sleep"},
57 {AMD_CG_SUPPORT_UVD_MGCG, "Unified Video Decoder Medium Grain Clock Gating"},
58 {AMD_CG_SUPPORT_VCE_MGCG, "Video Compression Engine Medium Grain Clock Gating"},
59 {AMD_CG_SUPPORT_HDP_LS, "Host Data Path Light Sleep"},
60 {AMD_CG_SUPPORT_HDP_MGCG, "Host Data Path Medium Grain Clock Gating"},
61 {AMD_CG_SUPPORT_DRM_MGCG, "Digital Right Management Medium Grain Clock Gating"},
62 {AMD_CG_SUPPORT_DRM_LS, "Digital Right Management Light Sleep"},
63 {AMD_CG_SUPPORT_ROM_MGCG, "Rom Medium Grain Clock Gating"},
64 {AMD_CG_SUPPORT_DF_MGCG, "Data Fabric Medium Grain Clock Gating"},
65 {AMD_CG_SUPPORT_VCN_MGCG, "VCN Medium Grain Clock Gating"},
66 {AMD_CG_SUPPORT_HDP_DS, "Host Data Path Deep Sleep"},
67 {AMD_CG_SUPPORT_HDP_SD, "Host Data Path Shutdown"},
68 {AMD_CG_SUPPORT_IH_CG, "Interrupt Handler Clock Gating"},
69 {AMD_CG_SUPPORT_JPEG_MGCG, "JPEG Medium Grain Clock Gating"},
70
71 {AMD_CG_SUPPORT_ATHUB_MGCG, "Address Translation Hub Medium Grain Clock Gating"},
72 {AMD_CG_SUPPORT_ATHUB_LS, "Address Translation Hub Light Sleep"},
73 {0, NULL},
74};
75
76static const struct hwmon_temp_label {
77 enum PP_HWMON_TEMP channel;
78 const char *label;
79} temp_label[] = {
80 {PP_TEMP_EDGE, "edge"},
81 {PP_TEMP_JUNCTION, "junction"},
82 {PP_TEMP_MEM, "mem"},
83};
84
85/**
86 * DOC: power_dpm_state
87 *
88 * The power_dpm_state file is a legacy interface and is only provided for
89 * backwards compatibility. The amdgpu driver provides a sysfs API for adjusting
90 * certain power related parameters. The file power_dpm_state is used for this.
91 * It accepts the following arguments:
92 *
93 * - battery
94 *
95 * - balanced
96 *
97 * - performance
98 *
99 * battery
100 *
101 * On older GPUs, the vbios provided a special power state for battery
102 * operation. Selecting battery switched to this state. This is no
103 * longer provided on newer GPUs so the option does nothing in that case.
104 *
105 * balanced
106 *
107 * On older GPUs, the vbios provided a special power state for balanced
108 * operation. Selecting balanced switched to this state. This is no
109 * longer provided on newer GPUs so the option does nothing in that case.
110 *
111 * performance
112 *
113 * On older GPUs, the vbios provided a special power state for performance
114 * operation. Selecting performance switched to this state. This is no
115 * longer provided on newer GPUs so the option does nothing in that case.
116 *
117 */
118
119static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
120 struct device_attribute *attr,
121 char *buf)
122{
123 struct drm_device *ddev = dev_get_drvdata(dev);
124 struct amdgpu_device *adev = drm_to_adev(ddev);
125 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
126 enum amd_pm_state_type pm;
127 int ret;
128
129 if (amdgpu_in_reset(adev))
130 return -EPERM;
131 if (adev->in_suspend && !adev->in_runpm)
132 return -EPERM;
133
134 ret = pm_runtime_get_sync(ddev->dev);
135 if (ret < 0) {
136 pm_runtime_put_autosuspend(ddev->dev);
137 return ret;
138 }
139
140 if (pp_funcs->get_current_power_state) {
141 pm = amdgpu_dpm_get_current_power_state(adev);
142 } else {
143 pm = adev->pm.dpm.user_state;
144 }
145
146 pm_runtime_mark_last_busy(ddev->dev);
147 pm_runtime_put_autosuspend(ddev->dev);
148
149 return sysfs_emit(buf, "%s\n",
150 (pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
151 (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
152}
153
154static ssize_t amdgpu_set_power_dpm_state(struct device *dev,
155 struct device_attribute *attr,
156 const char *buf,
157 size_t count)
158{
159 struct drm_device *ddev = dev_get_drvdata(dev);
160 struct amdgpu_device *adev = drm_to_adev(ddev);
161 enum amd_pm_state_type state;
162 int ret;
163
164 if (amdgpu_in_reset(adev))
165 return -EPERM;
166 if (adev->in_suspend && !adev->in_runpm)
167 return -EPERM;
168
169 if (strncmp("battery", buf, strlen("battery")) == 0)
170 state = POWER_STATE_TYPE_BATTERY;
171 else if (strncmp("balanced", buf, strlen("balanced")) == 0)
172 state = POWER_STATE_TYPE_BALANCED;
173 else if (strncmp("performance", buf, strlen("performance")) == 0)
174 state = POWER_STATE_TYPE_PERFORMANCE;
175 else
176 return -EINVAL;
177
178 ret = pm_runtime_get_sync(ddev->dev);
179 if (ret < 0) {
180 pm_runtime_put_autosuspend(ddev->dev);
181 return ret;
182 }
183
184 if (is_support_sw_smu(adev)) {
185 mutex_lock(&adev->pm.mutex);
186 adev->pm.dpm.user_state = state;
187 mutex_unlock(&adev->pm.mutex);
188 } else if (adev->powerplay.pp_funcs->dispatch_tasks) {
189 amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_ENABLE_USER_STATE, &state);
190 } else {
191 mutex_lock(&adev->pm.mutex);
192 adev->pm.dpm.user_state = state;
193 mutex_unlock(&adev->pm.mutex);
194
195 amdgpu_pm_compute_clocks(adev);
196 }
197 pm_runtime_mark_last_busy(ddev->dev);
198 pm_runtime_put_autosuspend(ddev->dev);
199
200 return count;
201}
202
203
204/**
205 * DOC: power_dpm_force_performance_level
206 *
207 * The amdgpu driver provides a sysfs API for adjusting certain power
208 * related parameters. The file power_dpm_force_performance_level is
209 * used for this. It accepts the following arguments:
210 *
211 * - auto
212 *
213 * - low
214 *
215 * - high
216 *
217 * - manual
218 *
219 * - profile_standard
220 *
221 * - profile_min_sclk
222 *
223 * - profile_min_mclk
224 *
225 * - profile_peak
226 *
227 * auto
228 *
229 * When auto is selected, the driver will attempt to dynamically select
230 * the optimal power profile for current conditions in the driver.
231 *
232 * low
233 *
234 * When low is selected, the clocks are forced to the lowest power state.
235 *
236 * high
237 *
238 * When high is selected, the clocks are forced to the highest power state.
239 *
240 * manual
241 *
242 * When manual is selected, the user can manually adjust which power states
243 * are enabled for each clock domain via the sysfs pp_dpm_mclk, pp_dpm_sclk,
244 * and pp_dpm_pcie files and adjust the power state transition heuristics
245 * via the pp_power_profile_mode sysfs file.
246 *
247 * profile_standard
248 * profile_min_sclk
249 * profile_min_mclk
250 * profile_peak
251 *
252 * When the profiling modes are selected, clock and power gating are
253 * disabled and the clocks are set for different profiling cases. This
254 * mode is recommended for profiling specific work loads where you do
255 * not want clock or power gating for clock fluctuation to interfere
256 * with your results. profile_standard sets the clocks to a fixed clock
257 * level which varies from asic to asic. profile_min_sclk forces the sclk
258 * to the lowest level. profile_min_mclk forces the mclk to the lowest level.
259 * profile_peak sets all clocks (mclk, sclk, pcie) to the highest levels.
260 *
261 */
262
263static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
264 struct device_attribute *attr,
265 char *buf)
266{
267 struct drm_device *ddev = dev_get_drvdata(dev);
268 struct amdgpu_device *adev = drm_to_adev(ddev);
269 enum amd_dpm_forced_level level = 0xff;
270 int ret;
271
272 if (amdgpu_in_reset(adev))
273 return -EPERM;
274 if (adev->in_suspend && !adev->in_runpm)
275 return -EPERM;
276
277 ret = pm_runtime_get_sync(ddev->dev);
278 if (ret < 0) {
279 pm_runtime_put_autosuspend(ddev->dev);
280 return ret;
281 }
282
283 if (adev->powerplay.pp_funcs->get_performance_level)
284 level = amdgpu_dpm_get_performance_level(adev);
285 else
286 level = adev->pm.dpm.forced_level;
287
288 pm_runtime_mark_last_busy(ddev->dev);
289 pm_runtime_put_autosuspend(ddev->dev);
290
291 return sysfs_emit(buf, "%s\n",
292 (level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
293 (level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" :
294 (level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" :
295 (level == AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" :
296 (level == AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD) ? "profile_standard" :
297 (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) ? "profile_min_sclk" :
298 (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) ? "profile_min_mclk" :
299 (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) ? "profile_peak" :
300 (level == AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM) ? "perf_determinism" :
301 "unknown");
302}
303
304static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
305 struct device_attribute *attr,
306 const char *buf,
307 size_t count)
308{
309 struct drm_device *ddev = dev_get_drvdata(dev);
310 struct amdgpu_device *adev = drm_to_adev(ddev);
311 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
312 enum amd_dpm_forced_level level;
313 enum amd_dpm_forced_level current_level = 0xff;
314 int ret = 0;
315
316 if (amdgpu_in_reset(adev))
317 return -EPERM;
318 if (adev->in_suspend && !adev->in_runpm)
319 return -EPERM;
320
321 if (strncmp("low", buf, strlen("low")) == 0) {
322 level = AMD_DPM_FORCED_LEVEL_LOW;
323 } else if (strncmp("high", buf, strlen("high")) == 0) {
324 level = AMD_DPM_FORCED_LEVEL_HIGH;
325 } else if (strncmp("auto", buf, strlen("auto")) == 0) {
326 level = AMD_DPM_FORCED_LEVEL_AUTO;
327 } else if (strncmp("manual", buf, strlen("manual")) == 0) {
328 level = AMD_DPM_FORCED_LEVEL_MANUAL;
329 } else if (strncmp("profile_exit", buf, strlen("profile_exit")) == 0) {
330 level = AMD_DPM_FORCED_LEVEL_PROFILE_EXIT;
331 } else if (strncmp("profile_standard", buf, strlen("profile_standard")) == 0) {
332 level = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD;
333 } else if (strncmp("profile_min_sclk", buf, strlen("profile_min_sclk")) == 0) {
334 level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK;
335 } else if (strncmp("profile_min_mclk", buf, strlen("profile_min_mclk")) == 0) {
336 level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK;
337 } else if (strncmp("profile_peak", buf, strlen("profile_peak")) == 0) {
338 level = AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
339 } else if (strncmp("perf_determinism", buf, strlen("perf_determinism")) == 0) {
340 level = AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM;
341 } else {
342 return -EINVAL;
343 }
344
345 ret = pm_runtime_get_sync(ddev->dev);
346 if (ret < 0) {
347 pm_runtime_put_autosuspend(ddev->dev);
348 return ret;
349 }
350
351 if (pp_funcs->get_performance_level)
352 current_level = amdgpu_dpm_get_performance_level(adev);
353
354 if (current_level == level) {
355 pm_runtime_mark_last_busy(ddev->dev);
356 pm_runtime_put_autosuspend(ddev->dev);
357 return count;
358 }
359
360 if (adev->asic_type == CHIP_RAVEN) {
361 if (!(adev->apu_flags & AMD_APU_IS_RAVEN2)) {
362 if (current_level != AMD_DPM_FORCED_LEVEL_MANUAL && level == AMD_DPM_FORCED_LEVEL_MANUAL)
363 amdgpu_gfx_off_ctrl(adev, false);
364 else if (current_level == AMD_DPM_FORCED_LEVEL_MANUAL && level != AMD_DPM_FORCED_LEVEL_MANUAL)
365 amdgpu_gfx_off_ctrl(adev, true);
366 }
367 }
368
369 /* profile_exit setting is valid only when current mode is in profile mode */
370 if (!(current_level & (AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
371 AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
372 AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
373 AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)) &&
374 (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)) {
375 pr_err("Currently not in any profile mode!\n");
376 pm_runtime_mark_last_busy(ddev->dev);
377 pm_runtime_put_autosuspend(ddev->dev);
378 return -EINVAL;
379 }
380
381 if (pp_funcs->force_performance_level) {
382 mutex_lock(&adev->pm.mutex);
383 if (adev->pm.dpm.thermal_active) {
384 mutex_unlock(&adev->pm.mutex);
385 pm_runtime_mark_last_busy(ddev->dev);
386 pm_runtime_put_autosuspend(ddev->dev);
387 return -EINVAL;
388 }
389 ret = amdgpu_dpm_force_performance_level(adev, level);
390 if (ret) {
391 mutex_unlock(&adev->pm.mutex);
392 pm_runtime_mark_last_busy(ddev->dev);
393 pm_runtime_put_autosuspend(ddev->dev);
394 return -EINVAL;
395 } else {
396 adev->pm.dpm.forced_level = level;
397 }
398 mutex_unlock(&adev->pm.mutex);
399 }
400 pm_runtime_mark_last_busy(ddev->dev);
401 pm_runtime_put_autosuspend(ddev->dev);
402
403 return count;
404}
405
406static ssize_t amdgpu_get_pp_num_states(struct device *dev,
407 struct device_attribute *attr,
408 char *buf)
409{
410 struct drm_device *ddev = dev_get_drvdata(dev);
411 struct amdgpu_device *adev = drm_to_adev(ddev);
412 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
413 struct pp_states_info data;
414 uint32_t i;
415 int buf_len, ret;
416
417 if (amdgpu_in_reset(adev))
418 return -EPERM;
419 if (adev->in_suspend && !adev->in_runpm)
420 return -EPERM;
421
422 ret = pm_runtime_get_sync(ddev->dev);
423 if (ret < 0) {
424 pm_runtime_put_autosuspend(ddev->dev);
425 return ret;
426 }
427
428 if (pp_funcs->get_pp_num_states) {
429 amdgpu_dpm_get_pp_num_states(adev, &data);
430 } else {
431 memset(&data, 0, sizeof(data));
432 }
433
434 pm_runtime_mark_last_busy(ddev->dev);
435 pm_runtime_put_autosuspend(ddev->dev);
436
437 buf_len = sysfs_emit(buf, "states: %d\n", data.nums);
438 for (i = 0; i < data.nums; i++)
439 buf_len += sysfs_emit_at(buf, buf_len, "%d %s\n", i,
440 (data.states[i] == POWER_STATE_TYPE_INTERNAL_BOOT) ? "boot" :
441 (data.states[i] == POWER_STATE_TYPE_BATTERY) ? "battery" :
442 (data.states[i] == POWER_STATE_TYPE_BALANCED) ? "balanced" :
443 (data.states[i] == POWER_STATE_TYPE_PERFORMANCE) ? "performance" : "default");
444
445 return buf_len;
446}
447
448static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
449 struct device_attribute *attr,
450 char *buf)
451{
452 struct drm_device *ddev = dev_get_drvdata(dev);
453 struct amdgpu_device *adev = drm_to_adev(ddev);
454 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
455 struct pp_states_info data = {0};
456 enum amd_pm_state_type pm = 0;
457 int i = 0, ret = 0;
458
459 if (amdgpu_in_reset(adev))
460 return -EPERM;
461 if (adev->in_suspend && !adev->in_runpm)
462 return -EPERM;
463
464 ret = pm_runtime_get_sync(ddev->dev);
465 if (ret < 0) {
466 pm_runtime_put_autosuspend(ddev->dev);
467 return ret;
468 }
469
470 if (pp_funcs->get_current_power_state
471 && pp_funcs->get_pp_num_states) {
472 pm = amdgpu_dpm_get_current_power_state(adev);
473 amdgpu_dpm_get_pp_num_states(adev, &data);
474 }
475
476 pm_runtime_mark_last_busy(ddev->dev);
477 pm_runtime_put_autosuspend(ddev->dev);
478
479 for (i = 0; i < data.nums; i++) {
480 if (pm == data.states[i])
481 break;
482 }
483
484 if (i == data.nums)
485 i = -EINVAL;
486
487 return sysfs_emit(buf, "%d\n", i);
488}
489
490static ssize_t amdgpu_get_pp_force_state(struct device *dev,
491 struct device_attribute *attr,
492 char *buf)
493{
494 struct drm_device *ddev = dev_get_drvdata(dev);
495 struct amdgpu_device *adev = drm_to_adev(ddev);
496
497 if (amdgpu_in_reset(adev))
498 return -EPERM;
499 if (adev->in_suspend && !adev->in_runpm)
500 return -EPERM;
501
502 if (adev->pp_force_state_enabled)
503 return amdgpu_get_pp_cur_state(dev, attr, buf);
504 else
505 return sysfs_emit(buf, "\n");
506}
507
508static ssize_t amdgpu_set_pp_force_state(struct device *dev,
509 struct device_attribute *attr,
510 const char *buf,
511 size_t count)
512{
513 struct drm_device *ddev = dev_get_drvdata(dev);
514 struct amdgpu_device *adev = drm_to_adev(ddev);
515 enum amd_pm_state_type state = 0;
516 unsigned long idx;
517 int ret;
518
519 if (amdgpu_in_reset(adev))
520 return -EPERM;
521 if (adev->in_suspend && !adev->in_runpm)
522 return -EPERM;
523
524 if (strlen(buf) == 1)
525 adev->pp_force_state_enabled = false;
526 else if (is_support_sw_smu(adev))
527 adev->pp_force_state_enabled = false;
528 else if (adev->powerplay.pp_funcs->dispatch_tasks &&
529 adev->powerplay.pp_funcs->get_pp_num_states) {
530 struct pp_states_info data;
531
532 ret = kstrtoul(buf, 0, &idx);
533 if (ret || idx >= ARRAY_SIZE(data.states))
534 return -EINVAL;
535
536 idx = array_index_nospec(idx, ARRAY_SIZE(data.states));
537
538 amdgpu_dpm_get_pp_num_states(adev, &data);
539 state = data.states[idx];
540
541 ret = pm_runtime_get_sync(ddev->dev);
542 if (ret < 0) {
543 pm_runtime_put_autosuspend(ddev->dev);
544 return ret;
545 }
546
547 /* only set user selected power states */
548 if (state != POWER_STATE_TYPE_INTERNAL_BOOT &&
549 state != POWER_STATE_TYPE_DEFAULT) {
550 amdgpu_dpm_dispatch_task(adev,
551 AMD_PP_TASK_ENABLE_USER_STATE, &state);
552 adev->pp_force_state_enabled = true;
553 }
554 pm_runtime_mark_last_busy(ddev->dev);
555 pm_runtime_put_autosuspend(ddev->dev);
556 }
557
558 return count;
559}
560
561/**
562 * DOC: pp_table
563 *
564 * The amdgpu driver provides a sysfs API for uploading new powerplay
565 * tables. The file pp_table is used for this. Reading the file
566 * will dump the current power play table. Writing to the file
567 * will attempt to upload a new powerplay table and re-initialize
568 * powerplay using that new table.
569 *
570 */
571
572static ssize_t amdgpu_get_pp_table(struct device *dev,
573 struct device_attribute *attr,
574 char *buf)
575{
576 struct drm_device *ddev = dev_get_drvdata(dev);
577 struct amdgpu_device *adev = drm_to_adev(ddev);
578 char *table = NULL;
579 int size, ret;
580
581 if (amdgpu_in_reset(adev))
582 return -EPERM;
583 if (adev->in_suspend && !adev->in_runpm)
584 return -EPERM;
585
586 ret = pm_runtime_get_sync(ddev->dev);
587 if (ret < 0) {
588 pm_runtime_put_autosuspend(ddev->dev);
589 return ret;
590 }
591
592 if (adev->powerplay.pp_funcs->get_pp_table) {
593 size = amdgpu_dpm_get_pp_table(adev, &table);
594 pm_runtime_mark_last_busy(ddev->dev);
595 pm_runtime_put_autosuspend(ddev->dev);
596 if (size < 0)
597 return size;
598 } else {
599 pm_runtime_mark_last_busy(ddev->dev);
600 pm_runtime_put_autosuspend(ddev->dev);
601 return 0;
602 }
603
604 if (size >= PAGE_SIZE)
605 size = PAGE_SIZE - 1;
606
607 memcpy(buf, table, size);
608
609 return size;
610}
611
612static ssize_t amdgpu_set_pp_table(struct device *dev,
613 struct device_attribute *attr,
614 const char *buf,
615 size_t count)
616{
617 struct drm_device *ddev = dev_get_drvdata(dev);
618 struct amdgpu_device *adev = drm_to_adev(ddev);
619 int ret = 0;
620
621 if (amdgpu_in_reset(adev))
622 return -EPERM;
623 if (adev->in_suspend && !adev->in_runpm)
624 return -EPERM;
625
626 ret = pm_runtime_get_sync(ddev->dev);
627 if (ret < 0) {
628 pm_runtime_put_autosuspend(ddev->dev);
629 return ret;
630 }
631
632 ret = amdgpu_dpm_set_pp_table(adev, buf, count);
633 if (ret) {
634 pm_runtime_mark_last_busy(ddev->dev);
635 pm_runtime_put_autosuspend(ddev->dev);
636 return ret;
637 }
638
639 pm_runtime_mark_last_busy(ddev->dev);
640 pm_runtime_put_autosuspend(ddev->dev);
641
642 return count;
643}
644
645/**
646 * DOC: pp_od_clk_voltage
647 *
648 * The amdgpu driver provides a sysfs API for adjusting the clocks and voltages
649 * in each power level within a power state. The pp_od_clk_voltage is used for
650 * this.
651 *
652 * Note that the actual memory controller clock rate are exposed, not
653 * the effective memory clock of the DRAMs. To translate it, use the
654 * following formula:
655 *
656 * Clock conversion (Mhz):
657 *
658 * HBM: effective_memory_clock = memory_controller_clock * 1
659 *
660 * G5: effective_memory_clock = memory_controller_clock * 1
661 *
662 * G6: effective_memory_clock = memory_controller_clock * 2
663 *
664 * DRAM data rate (MT/s):
665 *
666 * HBM: effective_memory_clock * 2 = data_rate
667 *
668 * G5: effective_memory_clock * 4 = data_rate
669 *
670 * G6: effective_memory_clock * 8 = data_rate
671 *
672 * Bandwidth (MB/s):
673 *
674 * data_rate * vram_bit_width / 8 = memory_bandwidth
675 *
676 * Some examples:
677 *
678 * G5 on RX460:
679 *
680 * memory_controller_clock = 1750 Mhz
681 *
682 * effective_memory_clock = 1750 Mhz * 1 = 1750 Mhz
683 *
684 * data rate = 1750 * 4 = 7000 MT/s
685 *
686 * memory_bandwidth = 7000 * 128 bits / 8 = 112000 MB/s
687 *
688 * G6 on RX5700:
689 *
690 * memory_controller_clock = 875 Mhz
691 *
692 * effective_memory_clock = 875 Mhz * 2 = 1750 Mhz
693 *
694 * data rate = 1750 * 8 = 14000 MT/s
695 *
696 * memory_bandwidth = 14000 * 256 bits / 8 = 448000 MB/s
697 *
698 * < For Vega10 and previous ASICs >
699 *
700 * Reading the file will display:
701 *
702 * - a list of engine clock levels and voltages labeled OD_SCLK
703 *
704 * - a list of memory clock levels and voltages labeled OD_MCLK
705 *
706 * - a list of valid ranges for sclk, mclk, and voltage labeled OD_RANGE
707 *
708 * To manually adjust these settings, first select manual using
709 * power_dpm_force_performance_level. Enter a new value for each
710 * level by writing a string that contains "s/m level clock voltage" to
711 * the file. E.g., "s 1 500 820" will update sclk level 1 to be 500 MHz
712 * at 820 mV; "m 0 350 810" will update mclk level 0 to be 350 MHz at
713 * 810 mV. When you have edited all of the states as needed, write
714 * "c" (commit) to the file to commit your changes. If you want to reset to the
715 * default power levels, write "r" (reset) to the file to reset them.
716 *
717 *
718 * < For Vega20 and newer ASICs >
719 *
720 * Reading the file will display:
721 *
722 * - minimum and maximum engine clock labeled OD_SCLK
723 *
724 * - minimum(not available for Vega20 and Navi1x) and maximum memory
725 * clock labeled OD_MCLK
726 *
727 * - three <frequency, voltage> points labeled OD_VDDC_CURVE.
728 * They can be used to calibrate the sclk voltage curve.
729 *
730 * - voltage offset(in mV) applied on target voltage calculation.
731 * This is available for Sienna Cichlid, Navy Flounder and Dimgrey
732 * Cavefish. For these ASICs, the target voltage calculation can be
733 * illustrated by "voltage = voltage calculated from v/f curve +
734 * overdrive vddgfx offset"
735 *
736 * - a list of valid ranges for sclk, mclk, and voltage curve points
737 * labeled OD_RANGE
738 *
739 * < For APUs >
740 *
741 * Reading the file will display:
742 *
743 * - minimum and maximum engine clock labeled OD_SCLK
744 *
745 * - a list of valid ranges for sclk labeled OD_RANGE
746 *
747 * < For VanGogh >
748 *
749 * Reading the file will display:
750 *
751 * - minimum and maximum engine clock labeled OD_SCLK
752 * - minimum and maximum core clocks labeled OD_CCLK
753 *
754 * - a list of valid ranges for sclk and cclk labeled OD_RANGE
755 *
756 * To manually adjust these settings:
757 *
758 * - First select manual using power_dpm_force_performance_level
759 *
760 * - For clock frequency setting, enter a new value by writing a
761 * string that contains "s/m index clock" to the file. The index
762 * should be 0 if to set minimum clock. And 1 if to set maximum
763 * clock. E.g., "s 0 500" will update minimum sclk to be 500 MHz.
764 * "m 1 800" will update maximum mclk to be 800Mhz. For core
765 * clocks on VanGogh, the string contains "p core index clock".
766 * E.g., "p 2 0 800" would set the minimum core clock on core
767 * 2 to 800Mhz.
768 *
769 * For sclk voltage curve, enter the new values by writing a
770 * string that contains "vc point clock voltage" to the file. The
771 * points are indexed by 0, 1 and 2. E.g., "vc 0 300 600" will
772 * update point1 with clock set as 300Mhz and voltage as
773 * 600mV. "vc 2 1000 1000" will update point3 with clock set
774 * as 1000Mhz and voltage 1000mV.
775 *
776 * To update the voltage offset applied for gfxclk/voltage calculation,
777 * enter the new value by writing a string that contains "vo offset".
778 * This is supported by Sienna Cichlid, Navy Flounder and Dimgrey Cavefish.
779 * And the offset can be a positive or negative value.
780 *
781 * - When you have edited all of the states as needed, write "c" (commit)
782 * to the file to commit your changes
783 *
784 * - If you want to reset to the default power levels, write "r" (reset)
785 * to the file to reset them
786 *
787 */
788
789static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
790 struct device_attribute *attr,
791 const char *buf,
792 size_t count)
793{
794 struct drm_device *ddev = dev_get_drvdata(dev);
795 struct amdgpu_device *adev = drm_to_adev(ddev);
796 int ret;
797 uint32_t parameter_size = 0;
798 long parameter[64];
799 char buf_cpy[128];
800 char *tmp_str;
801 char *sub_str;
802 const char delimiter[3] = {' ', '\n', '\0'};
803 uint32_t type;
804
805 if (amdgpu_in_reset(adev))
806 return -EPERM;
807 if (adev->in_suspend && !adev->in_runpm)
808 return -EPERM;
809
810 if (count > 127)
811 return -EINVAL;
812
813 if (*buf == 's')
814 type = PP_OD_EDIT_SCLK_VDDC_TABLE;
815 else if (*buf == 'p')
816 type = PP_OD_EDIT_CCLK_VDDC_TABLE;
817 else if (*buf == 'm')
818 type = PP_OD_EDIT_MCLK_VDDC_TABLE;
819 else if(*buf == 'r')
820 type = PP_OD_RESTORE_DEFAULT_TABLE;
821 else if (*buf == 'c')
822 type = PP_OD_COMMIT_DPM_TABLE;
823 else if (!strncmp(buf, "vc", 2))
824 type = PP_OD_EDIT_VDDC_CURVE;
825 else if (!strncmp(buf, "vo", 2))
826 type = PP_OD_EDIT_VDDGFX_OFFSET;
827 else
828 return -EINVAL;
829
830 memcpy(buf_cpy, buf, count+1);
831
832 tmp_str = buf_cpy;
833
834 if ((type == PP_OD_EDIT_VDDC_CURVE) ||
835 (type == PP_OD_EDIT_VDDGFX_OFFSET))
836 tmp_str++;
837 while (isspace(*++tmp_str));
838
839 while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
840 if (strlen(sub_str) == 0)
841 continue;
842 ret = kstrtol(sub_str, 0, ¶meter[parameter_size]);
843 if (ret)
844 return -EINVAL;
845 parameter_size++;
846
847 while (isspace(*tmp_str))
848 tmp_str++;
849 }
850
851 ret = pm_runtime_get_sync(ddev->dev);
852 if (ret < 0) {
853 pm_runtime_put_autosuspend(ddev->dev);
854 return ret;
855 }
856
857 if (adev->powerplay.pp_funcs->set_fine_grain_clk_vol) {
858 ret = amdgpu_dpm_set_fine_grain_clk_vol(adev, type,
859 parameter,
860 parameter_size);
861 if (ret) {
862 pm_runtime_mark_last_busy(ddev->dev);
863 pm_runtime_put_autosuspend(ddev->dev);
864 return -EINVAL;
865 }
866 }
867
868 if (adev->powerplay.pp_funcs->odn_edit_dpm_table) {
869 ret = amdgpu_dpm_odn_edit_dpm_table(adev, type,
870 parameter, parameter_size);
871 if (ret) {
872 pm_runtime_mark_last_busy(ddev->dev);
873 pm_runtime_put_autosuspend(ddev->dev);
874 return -EINVAL;
875 }
876 }
877
878 if (type == PP_OD_COMMIT_DPM_TABLE) {
879 if (adev->powerplay.pp_funcs->dispatch_tasks) {
880 amdgpu_dpm_dispatch_task(adev,
881 AMD_PP_TASK_READJUST_POWER_STATE,
882 NULL);
883 pm_runtime_mark_last_busy(ddev->dev);
884 pm_runtime_put_autosuspend(ddev->dev);
885 return count;
886 } else {
887 pm_runtime_mark_last_busy(ddev->dev);
888 pm_runtime_put_autosuspend(ddev->dev);
889 return -EINVAL;
890 }
891 }
892
893 pm_runtime_mark_last_busy(ddev->dev);
894 pm_runtime_put_autosuspend(ddev->dev);
895
896 return count;
897}
898
899static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev,
900 struct device_attribute *attr,
901 char *buf)
902{
903 struct drm_device *ddev = dev_get_drvdata(dev);
904 struct amdgpu_device *adev = drm_to_adev(ddev);
905 ssize_t size;
906 int ret;
907
908 if (amdgpu_in_reset(adev))
909 return -EPERM;
910 if (adev->in_suspend && !adev->in_runpm)
911 return -EPERM;
912
913 ret = pm_runtime_get_sync(ddev->dev);
914 if (ret < 0) {
915 pm_runtime_put_autosuspend(ddev->dev);
916 return ret;
917 }
918
919 if (adev->powerplay.pp_funcs->print_clock_levels) {
920 size = amdgpu_dpm_print_clock_levels(adev, OD_SCLK, buf);
921 size += amdgpu_dpm_print_clock_levels(adev, OD_MCLK, buf+size);
922 size += amdgpu_dpm_print_clock_levels(adev, OD_VDDC_CURVE, buf+size);
923 size += amdgpu_dpm_print_clock_levels(adev, OD_VDDGFX_OFFSET, buf+size);
924 size += amdgpu_dpm_print_clock_levels(adev, OD_RANGE, buf+size);
925 size += amdgpu_dpm_print_clock_levels(adev, OD_CCLK, buf+size);
926 } else {
927 size = sysfs_emit(buf, "\n");
928 }
929 pm_runtime_mark_last_busy(ddev->dev);
930 pm_runtime_put_autosuspend(ddev->dev);
931
932 return size;
933}
934
935/**
936 * DOC: pp_features
937 *
938 * The amdgpu driver provides a sysfs API for adjusting what powerplay
939 * features to be enabled. The file pp_features is used for this. And
940 * this is only available for Vega10 and later dGPUs.
941 *
942 * Reading back the file will show you the followings:
943 * - Current ppfeature masks
944 * - List of the all supported powerplay features with their naming,
945 * bitmasks and enablement status('Y'/'N' means "enabled"/"disabled").
946 *
947 * To manually enable or disable a specific feature, just set or clear
948 * the corresponding bit from original ppfeature masks and input the
949 * new ppfeature masks.
950 */
951static ssize_t amdgpu_set_pp_features(struct device *dev,
952 struct device_attribute *attr,
953 const char *buf,
954 size_t count)
955{
956 struct drm_device *ddev = dev_get_drvdata(dev);
957 struct amdgpu_device *adev = drm_to_adev(ddev);
958 uint64_t featuremask;
959 int ret;
960
961 if (amdgpu_in_reset(adev))
962 return -EPERM;
963 if (adev->in_suspend && !adev->in_runpm)
964 return -EPERM;
965
966 ret = kstrtou64(buf, 0, &featuremask);
967 if (ret)
968 return -EINVAL;
969
970 ret = pm_runtime_get_sync(ddev->dev);
971 if (ret < 0) {
972 pm_runtime_put_autosuspend(ddev->dev);
973 return ret;
974 }
975
976 if (adev->powerplay.pp_funcs->set_ppfeature_status) {
977 ret = amdgpu_dpm_set_ppfeature_status(adev, featuremask);
978 if (ret) {
979 pm_runtime_mark_last_busy(ddev->dev);
980 pm_runtime_put_autosuspend(ddev->dev);
981 return -EINVAL;
982 }
983 }
984 pm_runtime_mark_last_busy(ddev->dev);
985 pm_runtime_put_autosuspend(ddev->dev);
986
987 return count;
988}
989
990static ssize_t amdgpu_get_pp_features(struct device *dev,
991 struct device_attribute *attr,
992 char *buf)
993{
994 struct drm_device *ddev = dev_get_drvdata(dev);
995 struct amdgpu_device *adev = drm_to_adev(ddev);
996 ssize_t size;
997 int ret;
998
999 if (amdgpu_in_reset(adev))
1000 return -EPERM;
1001 if (adev->in_suspend && !adev->in_runpm)
1002 return -EPERM;
1003
1004 ret = pm_runtime_get_sync(ddev->dev);
1005 if (ret < 0) {
1006 pm_runtime_put_autosuspend(ddev->dev);
1007 return ret;
1008 }
1009
1010 if (adev->powerplay.pp_funcs->get_ppfeature_status)
1011 size = amdgpu_dpm_get_ppfeature_status(adev, buf);
1012 else
1013 size = sysfs_emit(buf, "\n");
1014
1015 pm_runtime_mark_last_busy(ddev->dev);
1016 pm_runtime_put_autosuspend(ddev->dev);
1017
1018 return size;
1019}
1020
1021/**
1022 * DOC: pp_dpm_sclk pp_dpm_mclk pp_dpm_socclk pp_dpm_fclk pp_dpm_dcefclk pp_dpm_pcie
1023 *
1024 * The amdgpu driver provides a sysfs API for adjusting what power levels
1025 * are enabled for a given power state. The files pp_dpm_sclk, pp_dpm_mclk,
1026 * pp_dpm_socclk, pp_dpm_fclk, pp_dpm_dcefclk and pp_dpm_pcie are used for
1027 * this.
1028 *
1029 * pp_dpm_socclk and pp_dpm_dcefclk interfaces are only available for
1030 * Vega10 and later ASICs.
1031 * pp_dpm_fclk interface is only available for Vega20 and later ASICs.
1032 *
1033 * Reading back the files will show you the available power levels within
1034 * the power state and the clock information for those levels.
1035 *
1036 * To manually adjust these states, first select manual using
1037 * power_dpm_force_performance_level.
1038 * Secondly, enter a new value for each level by inputing a string that
1039 * contains " echo xx xx xx > pp_dpm_sclk/mclk/pcie"
1040 * E.g.,
1041 *
1042 * .. code-block:: bash
1043 *
1044 * echo "4 5 6" > pp_dpm_sclk
1045 *
1046 * will enable sclk levels 4, 5, and 6.
1047 *
1048 * NOTE: change to the dcefclk max dpm level is not supported now
1049 */
1050
1051static ssize_t amdgpu_get_pp_dpm_clock(struct device *dev,
1052 enum pp_clock_type type,
1053 char *buf)
1054{
1055 struct drm_device *ddev = dev_get_drvdata(dev);
1056 struct amdgpu_device *adev = drm_to_adev(ddev);
1057 ssize_t size;
1058 int ret;
1059
1060 if (amdgpu_in_reset(adev))
1061 return -EPERM;
1062 if (adev->in_suspend && !adev->in_runpm)
1063 return -EPERM;
1064
1065 ret = pm_runtime_get_sync(ddev->dev);
1066 if (ret < 0) {
1067 pm_runtime_put_autosuspend(ddev->dev);
1068 return ret;
1069 }
1070
1071 if (adev->powerplay.pp_funcs->print_clock_levels)
1072 size = amdgpu_dpm_print_clock_levels(adev, type, buf);
1073 else
1074 size = sysfs_emit(buf, "\n");
1075
1076 pm_runtime_mark_last_busy(ddev->dev);
1077 pm_runtime_put_autosuspend(ddev->dev);
1078
1079 return size;
1080}
1081
1082/*
1083 * Worst case: 32 bits individually specified, in octal at 12 characters
1084 * per line (+1 for \n).
1085 */
1086#define AMDGPU_MASK_BUF_MAX (32 * 13)
1087
1088static ssize_t amdgpu_read_mask(const char *buf, size_t count, uint32_t *mask)
1089{
1090 int ret;
1091 unsigned long level;
1092 char *sub_str = NULL;
1093 char *tmp;
1094 char buf_cpy[AMDGPU_MASK_BUF_MAX + 1];
1095 const char delimiter[3] = {' ', '\n', '\0'};
1096 size_t bytes;
1097
1098 *mask = 0;
1099
1100 bytes = min(count, sizeof(buf_cpy) - 1);
1101 memcpy(buf_cpy, buf, bytes);
1102 buf_cpy[bytes] = '\0';
1103 tmp = buf_cpy;
1104 while ((sub_str = strsep(&tmp, delimiter)) != NULL) {
1105 if (strlen(sub_str)) {
1106 ret = kstrtoul(sub_str, 0, &level);
1107 if (ret || level > 31)
1108 return -EINVAL;
1109 *mask |= 1 << level;
1110 } else
1111 break;
1112 }
1113
1114 return 0;
1115}
1116
1117static ssize_t amdgpu_set_pp_dpm_clock(struct device *dev,
1118 enum pp_clock_type type,
1119 const char *buf,
1120 size_t count)
1121{
1122 struct drm_device *ddev = dev_get_drvdata(dev);
1123 struct amdgpu_device *adev = drm_to_adev(ddev);
1124 int ret;
1125 uint32_t mask = 0;
1126
1127 if (amdgpu_in_reset(adev))
1128 return -EPERM;
1129 if (adev->in_suspend && !adev->in_runpm)
1130 return -EPERM;
1131
1132 ret = amdgpu_read_mask(buf, count, &mask);
1133 if (ret)
1134 return ret;
1135
1136 ret = pm_runtime_get_sync(ddev->dev);
1137 if (ret < 0) {
1138 pm_runtime_put_autosuspend(ddev->dev);
1139 return ret;
1140 }
1141
1142 if (adev->powerplay.pp_funcs->force_clock_level)
1143 ret = amdgpu_dpm_force_clock_level(adev, type, mask);
1144 else
1145 ret = 0;
1146
1147 pm_runtime_mark_last_busy(ddev->dev);
1148 pm_runtime_put_autosuspend(ddev->dev);
1149
1150 if (ret)
1151 return -EINVAL;
1152
1153 return count;
1154}
1155
1156static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
1157 struct device_attribute *attr,
1158 char *buf)
1159{
1160 return amdgpu_get_pp_dpm_clock(dev, PP_SCLK, buf);
1161}
1162
1163static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
1164 struct device_attribute *attr,
1165 const char *buf,
1166 size_t count)
1167{
1168 return amdgpu_set_pp_dpm_clock(dev, PP_SCLK, buf, count);
1169}
1170
1171static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
1172 struct device_attribute *attr,
1173 char *buf)
1174{
1175 return amdgpu_get_pp_dpm_clock(dev, PP_MCLK, buf);
1176}
1177
1178static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
1179 struct device_attribute *attr,
1180 const char *buf,
1181 size_t count)
1182{
1183 return amdgpu_set_pp_dpm_clock(dev, PP_MCLK, buf, count);
1184}
1185
1186static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev,
1187 struct device_attribute *attr,
1188 char *buf)
1189{
1190 return amdgpu_get_pp_dpm_clock(dev, PP_SOCCLK, buf);
1191}
1192
1193static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
1194 struct device_attribute *attr,
1195 const char *buf,
1196 size_t count)
1197{
1198 return amdgpu_set_pp_dpm_clock(dev, PP_SOCCLK, buf, count);
1199}
1200
1201static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev,
1202 struct device_attribute *attr,
1203 char *buf)
1204{
1205 return amdgpu_get_pp_dpm_clock(dev, PP_FCLK, buf);
1206}
1207
1208static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
1209 struct device_attribute *attr,
1210 const char *buf,
1211 size_t count)
1212{
1213 return amdgpu_set_pp_dpm_clock(dev, PP_FCLK, buf, count);
1214}
1215
1216static ssize_t amdgpu_get_pp_dpm_vclk(struct device *dev,
1217 struct device_attribute *attr,
1218 char *buf)
1219{
1220 return amdgpu_get_pp_dpm_clock(dev, PP_VCLK, buf);
1221}
1222
1223static ssize_t amdgpu_set_pp_dpm_vclk(struct device *dev,
1224 struct device_attribute *attr,
1225 const char *buf,
1226 size_t count)
1227{
1228 return amdgpu_set_pp_dpm_clock(dev, PP_VCLK, buf, count);
1229}
1230
1231static ssize_t amdgpu_get_pp_dpm_dclk(struct device *dev,
1232 struct device_attribute *attr,
1233 char *buf)
1234{
1235 return amdgpu_get_pp_dpm_clock(dev, PP_DCLK, buf);
1236}
1237
1238static ssize_t amdgpu_set_pp_dpm_dclk(struct device *dev,
1239 struct device_attribute *attr,
1240 const char *buf,
1241 size_t count)
1242{
1243 return amdgpu_set_pp_dpm_clock(dev, PP_DCLK, buf, count);
1244}
1245
1246static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev,
1247 struct device_attribute *attr,
1248 char *buf)
1249{
1250 return amdgpu_get_pp_dpm_clock(dev, PP_DCEFCLK, buf);
1251}
1252
1253static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
1254 struct device_attribute *attr,
1255 const char *buf,
1256 size_t count)
1257{
1258 return amdgpu_set_pp_dpm_clock(dev, PP_DCEFCLK, buf, count);
1259}
1260
1261static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev,
1262 struct device_attribute *attr,
1263 char *buf)
1264{
1265 return amdgpu_get_pp_dpm_clock(dev, PP_PCIE, buf);
1266}
1267
1268static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
1269 struct device_attribute *attr,
1270 const char *buf,
1271 size_t count)
1272{
1273 return amdgpu_set_pp_dpm_clock(dev, PP_PCIE, buf, count);
1274}
1275
1276static ssize_t amdgpu_get_pp_sclk_od(struct device *dev,
1277 struct device_attribute *attr,
1278 char *buf)
1279{
1280 struct drm_device *ddev = dev_get_drvdata(dev);
1281 struct amdgpu_device *adev = drm_to_adev(ddev);
1282 uint32_t value = 0;
1283 int ret;
1284
1285 if (amdgpu_in_reset(adev))
1286 return -EPERM;
1287 if (adev->in_suspend && !adev->in_runpm)
1288 return -EPERM;
1289
1290 ret = pm_runtime_get_sync(ddev->dev);
1291 if (ret < 0) {
1292 pm_runtime_put_autosuspend(ddev->dev);
1293 return ret;
1294 }
1295
1296 if (is_support_sw_smu(adev))
1297 value = 0;
1298 else if (adev->powerplay.pp_funcs->get_sclk_od)
1299 value = amdgpu_dpm_get_sclk_od(adev);
1300
1301 pm_runtime_mark_last_busy(ddev->dev);
1302 pm_runtime_put_autosuspend(ddev->dev);
1303
1304 return sysfs_emit(buf, "%d\n", value);
1305}
1306
1307static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
1308 struct device_attribute *attr,
1309 const char *buf,
1310 size_t count)
1311{
1312 struct drm_device *ddev = dev_get_drvdata(dev);
1313 struct amdgpu_device *adev = drm_to_adev(ddev);
1314 int ret;
1315 long int value;
1316
1317 if (amdgpu_in_reset(adev))
1318 return -EPERM;
1319 if (adev->in_suspend && !adev->in_runpm)
1320 return -EPERM;
1321
1322 ret = kstrtol(buf, 0, &value);
1323
1324 if (ret)
1325 return -EINVAL;
1326
1327 ret = pm_runtime_get_sync(ddev->dev);
1328 if (ret < 0) {
1329 pm_runtime_put_autosuspend(ddev->dev);
1330 return ret;
1331 }
1332
1333 if (is_support_sw_smu(adev)) {
1334 value = 0;
1335 } else {
1336 if (adev->powerplay.pp_funcs->set_sclk_od)
1337 amdgpu_dpm_set_sclk_od(adev, (uint32_t)value);
1338
1339 if (adev->powerplay.pp_funcs->dispatch_tasks) {
1340 amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_READJUST_POWER_STATE, NULL);
1341 } else {
1342 adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
1343 amdgpu_pm_compute_clocks(adev);
1344 }
1345 }
1346
1347 pm_runtime_mark_last_busy(ddev->dev);
1348 pm_runtime_put_autosuspend(ddev->dev);
1349
1350 return count;
1351}
1352
1353static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
1354 struct device_attribute *attr,
1355 char *buf)
1356{
1357 struct drm_device *ddev = dev_get_drvdata(dev);
1358 struct amdgpu_device *adev = drm_to_adev(ddev);
1359 uint32_t value = 0;
1360 int ret;
1361
1362 if (amdgpu_in_reset(adev))
1363 return -EPERM;
1364 if (adev->in_suspend && !adev->in_runpm)
1365 return -EPERM;
1366
1367 ret = pm_runtime_get_sync(ddev->dev);
1368 if (ret < 0) {
1369 pm_runtime_put_autosuspend(ddev->dev);
1370 return ret;
1371 }
1372
1373 if (is_support_sw_smu(adev))
1374 value = 0;
1375 else if (adev->powerplay.pp_funcs->get_mclk_od)
1376 value = amdgpu_dpm_get_mclk_od(adev);
1377
1378 pm_runtime_mark_last_busy(ddev->dev);
1379 pm_runtime_put_autosuspend(ddev->dev);
1380
1381 return sysfs_emit(buf, "%d\n", value);
1382}
1383
1384static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
1385 struct device_attribute *attr,
1386 const char *buf,
1387 size_t count)
1388{
1389 struct drm_device *ddev = dev_get_drvdata(dev);
1390 struct amdgpu_device *adev = drm_to_adev(ddev);
1391 int ret;
1392 long int value;
1393
1394 if (amdgpu_in_reset(adev))
1395 return -EPERM;
1396 if (adev->in_suspend && !adev->in_runpm)
1397 return -EPERM;
1398
1399 ret = kstrtol(buf, 0, &value);
1400
1401 if (ret)
1402 return -EINVAL;
1403
1404 ret = pm_runtime_get_sync(ddev->dev);
1405 if (ret < 0) {
1406 pm_runtime_put_autosuspend(ddev->dev);
1407 return ret;
1408 }
1409
1410 if (is_support_sw_smu(adev)) {
1411 value = 0;
1412 } else {
1413 if (adev->powerplay.pp_funcs->set_mclk_od)
1414 amdgpu_dpm_set_mclk_od(adev, (uint32_t)value);
1415
1416 if (adev->powerplay.pp_funcs->dispatch_tasks) {
1417 amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_READJUST_POWER_STATE, NULL);
1418 } else {
1419 adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
1420 amdgpu_pm_compute_clocks(adev);
1421 }
1422 }
1423
1424 pm_runtime_mark_last_busy(ddev->dev);
1425 pm_runtime_put_autosuspend(ddev->dev);
1426
1427 return count;
1428}
1429
1430/**
1431 * DOC: pp_power_profile_mode
1432 *
1433 * The amdgpu driver provides a sysfs API for adjusting the heuristics
1434 * related to switching between power levels in a power state. The file
1435 * pp_power_profile_mode is used for this.
1436 *
1437 * Reading this file outputs a list of all of the predefined power profiles
1438 * and the relevant heuristics settings for that profile.
1439 *
1440 * To select a profile or create a custom profile, first select manual using
1441 * power_dpm_force_performance_level. Writing the number of a predefined
1442 * profile to pp_power_profile_mode will enable those heuristics. To
1443 * create a custom set of heuristics, write a string of numbers to the file
1444 * starting with the number of the custom profile along with a setting
1445 * for each heuristic parameter. Due to differences across asic families
1446 * the heuristic parameters vary from family to family.
1447 *
1448 */
1449
1450static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
1451 struct device_attribute *attr,
1452 char *buf)
1453{
1454 struct drm_device *ddev = dev_get_drvdata(dev);
1455 struct amdgpu_device *adev = drm_to_adev(ddev);
1456 ssize_t size;
1457 int ret;
1458
1459 if (amdgpu_in_reset(adev))
1460 return -EPERM;
1461 if (adev->in_suspend && !adev->in_runpm)
1462 return -EPERM;
1463
1464 ret = pm_runtime_get_sync(ddev->dev);
1465 if (ret < 0) {
1466 pm_runtime_put_autosuspend(ddev->dev);
1467 return ret;
1468 }
1469
1470 if (adev->powerplay.pp_funcs->get_power_profile_mode)
1471 size = amdgpu_dpm_get_power_profile_mode(adev, buf);
1472 else
1473 size = sysfs_emit(buf, "\n");
1474
1475 pm_runtime_mark_last_busy(ddev->dev);
1476 pm_runtime_put_autosuspend(ddev->dev);
1477
1478 return size;
1479}
1480
1481
1482static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
1483 struct device_attribute *attr,
1484 const char *buf,
1485 size_t count)
1486{
1487 int ret;
1488 struct drm_device *ddev = dev_get_drvdata(dev);
1489 struct amdgpu_device *adev = drm_to_adev(ddev);
1490 uint32_t parameter_size = 0;
1491 long parameter[64];
1492 char *sub_str, buf_cpy[128];
1493 char *tmp_str;
1494 uint32_t i = 0;
1495 char tmp[2];
1496 long int profile_mode = 0;
1497 const char delimiter[3] = {' ', '\n', '\0'};
1498
1499 if (amdgpu_in_reset(adev))
1500 return -EPERM;
1501 if (adev->in_suspend && !adev->in_runpm)
1502 return -EPERM;
1503
1504 tmp[0] = *(buf);
1505 tmp[1] = '\0';
1506 ret = kstrtol(tmp, 0, &profile_mode);
1507 if (ret)
1508 return -EINVAL;
1509
1510 if (profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) {
1511 if (count < 2 || count > 127)
1512 return -EINVAL;
1513 while (isspace(*++buf))
1514 i++;
1515 memcpy(buf_cpy, buf, count-i);
1516 tmp_str = buf_cpy;
1517 while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
1518 if (strlen(sub_str) == 0)
1519 continue;
1520 ret = kstrtol(sub_str, 0, ¶meter[parameter_size]);
1521 if (ret)
1522 return -EINVAL;
1523 parameter_size++;
1524 while (isspace(*tmp_str))
1525 tmp_str++;
1526 }
1527 }
1528 parameter[parameter_size] = profile_mode;
1529
1530 ret = pm_runtime_get_sync(ddev->dev);
1531 if (ret < 0) {
1532 pm_runtime_put_autosuspend(ddev->dev);
1533 return ret;
1534 }
1535
1536 if (adev->powerplay.pp_funcs->set_power_profile_mode)
1537 ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size);
1538
1539 pm_runtime_mark_last_busy(ddev->dev);
1540 pm_runtime_put_autosuspend(ddev->dev);
1541
1542 if (!ret)
1543 return count;
1544
1545 return -EINVAL;
1546}
1547
1548/**
1549 * DOC: gpu_busy_percent
1550 *
1551 * The amdgpu driver provides a sysfs API for reading how busy the GPU
1552 * is as a percentage. The file gpu_busy_percent is used for this.
1553 * The SMU firmware computes a percentage of load based on the
1554 * aggregate activity level in the IP cores.
1555 */
1556static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev,
1557 struct device_attribute *attr,
1558 char *buf)
1559{
1560 struct drm_device *ddev = dev_get_drvdata(dev);
1561 struct amdgpu_device *adev = drm_to_adev(ddev);
1562 int r, value, size = sizeof(value);
1563
1564 if (amdgpu_in_reset(adev))
1565 return -EPERM;
1566 if (adev->in_suspend && !adev->in_runpm)
1567 return -EPERM;
1568
1569 r = pm_runtime_get_sync(ddev->dev);
1570 if (r < 0) {
1571 pm_runtime_put_autosuspend(ddev->dev);
1572 return r;
1573 }
1574
1575 /* read the IP busy sensor */
1576 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD,
1577 (void *)&value, &size);
1578
1579 pm_runtime_mark_last_busy(ddev->dev);
1580 pm_runtime_put_autosuspend(ddev->dev);
1581
1582 if (r)
1583 return r;
1584
1585 return sysfs_emit(buf, "%d\n", value);
1586}
1587
1588/**
1589 * DOC: mem_busy_percent
1590 *
1591 * The amdgpu driver provides a sysfs API for reading how busy the VRAM
1592 * is as a percentage. The file mem_busy_percent is used for this.
1593 * The SMU firmware computes a percentage of load based on the
1594 * aggregate activity level in the IP cores.
1595 */
1596static ssize_t amdgpu_get_mem_busy_percent(struct device *dev,
1597 struct device_attribute *attr,
1598 char *buf)
1599{
1600 struct drm_device *ddev = dev_get_drvdata(dev);
1601 struct amdgpu_device *adev = drm_to_adev(ddev);
1602 int r, value, size = sizeof(value);
1603
1604 if (amdgpu_in_reset(adev))
1605 return -EPERM;
1606 if (adev->in_suspend && !adev->in_runpm)
1607 return -EPERM;
1608
1609 r = pm_runtime_get_sync(ddev->dev);
1610 if (r < 0) {
1611 pm_runtime_put_autosuspend(ddev->dev);
1612 return r;
1613 }
1614
1615 /* read the IP busy sensor */
1616 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_LOAD,
1617 (void *)&value, &size);
1618
1619 pm_runtime_mark_last_busy(ddev->dev);
1620 pm_runtime_put_autosuspend(ddev->dev);
1621
1622 if (r)
1623 return r;
1624
1625 return sysfs_emit(buf, "%d\n", value);
1626}
1627
1628/**
1629 * DOC: pcie_bw
1630 *
1631 * The amdgpu driver provides a sysfs API for estimating how much data
1632 * has been received and sent by the GPU in the last second through PCIe.
1633 * The file pcie_bw is used for this.
1634 * The Perf counters count the number of received and sent messages and return
1635 * those values, as well as the maximum payload size of a PCIe packet (mps).
1636 * Note that it is not possible to easily and quickly obtain the size of each
1637 * packet transmitted, so we output the max payload size (mps) to allow for
1638 * quick estimation of the PCIe bandwidth usage
1639 */
1640static ssize_t amdgpu_get_pcie_bw(struct device *dev,
1641 struct device_attribute *attr,
1642 char *buf)
1643{
1644 struct drm_device *ddev = dev_get_drvdata(dev);
1645 struct amdgpu_device *adev = drm_to_adev(ddev);
1646 uint64_t count0 = 0, count1 = 0;
1647 int ret;
1648
1649 if (amdgpu_in_reset(adev))
1650 return -EPERM;
1651 if (adev->in_suspend && !adev->in_runpm)
1652 return -EPERM;
1653
1654 if (adev->flags & AMD_IS_APU)
1655 return -ENODATA;
1656
1657 if (!adev->asic_funcs->get_pcie_usage)
1658 return -ENODATA;
1659
1660 ret = pm_runtime_get_sync(ddev->dev);
1661 if (ret < 0) {
1662 pm_runtime_put_autosuspend(ddev->dev);
1663 return ret;
1664 }
1665
1666 amdgpu_asic_get_pcie_usage(adev, &count0, &count1);
1667
1668 pm_runtime_mark_last_busy(ddev->dev);
1669 pm_runtime_put_autosuspend(ddev->dev);
1670
1671 return sysfs_emit(buf, "%llu %llu %i\n",
1672 count0, count1, pcie_get_mps(adev->pdev));
1673}
1674
1675/**
1676 * DOC: unique_id
1677 *
1678 * The amdgpu driver provides a sysfs API for providing a unique ID for the GPU
1679 * The file unique_id is used for this.
1680 * This will provide a Unique ID that will persist from machine to machine
1681 *
1682 * NOTE: This will only work for GFX9 and newer. This file will be absent
1683 * on unsupported ASICs (GFX8 and older)
1684 */
1685static ssize_t amdgpu_get_unique_id(struct device *dev,
1686 struct device_attribute *attr,
1687 char *buf)
1688{
1689 struct drm_device *ddev = dev_get_drvdata(dev);
1690 struct amdgpu_device *adev = drm_to_adev(ddev);
1691
1692 if (amdgpu_in_reset(adev))
1693 return -EPERM;
1694 if (adev->in_suspend && !adev->in_runpm)
1695 return -EPERM;
1696
1697 if (adev->unique_id)
1698 return sysfs_emit(buf, "%016llx\n", adev->unique_id);
1699
1700 return 0;
1701}
1702
1703/**
1704 * DOC: thermal_throttling_logging
1705 *
1706 * Thermal throttling pulls down the clock frequency and thus the performance.
1707 * It's an useful mechanism to protect the chip from overheating. Since it
1708 * impacts performance, the user controls whether it is enabled and if so,
1709 * the log frequency.
1710 *
1711 * Reading back the file shows you the status(enabled or disabled) and
1712 * the interval(in seconds) between each thermal logging.
1713 *
1714 * Writing an integer to the file, sets a new logging interval, in seconds.
1715 * The value should be between 1 and 3600. If the value is less than 1,
1716 * thermal logging is disabled. Values greater than 3600 are ignored.
1717 */
1718static ssize_t amdgpu_get_thermal_throttling_logging(struct device *dev,
1719 struct device_attribute *attr,
1720 char *buf)
1721{
1722 struct drm_device *ddev = dev_get_drvdata(dev);
1723 struct amdgpu_device *adev = drm_to_adev(ddev);
1724
1725 return sysfs_emit(buf, "%s: thermal throttling logging %s, with interval %d seconds\n",
1726 adev_to_drm(adev)->unique,
1727 atomic_read(&adev->throttling_logging_enabled) ? "enabled" : "disabled",
1728 adev->throttling_logging_rs.interval / HZ + 1);
1729}
1730
1731static ssize_t amdgpu_set_thermal_throttling_logging(struct device *dev,
1732 struct device_attribute *attr,
1733 const char *buf,
1734 size_t count)
1735{
1736 struct drm_device *ddev = dev_get_drvdata(dev);
1737 struct amdgpu_device *adev = drm_to_adev(ddev);
1738 long throttling_logging_interval;
1739 unsigned long flags;
1740 int ret = 0;
1741
1742 ret = kstrtol(buf, 0, &throttling_logging_interval);
1743 if (ret)
1744 return ret;
1745
1746 if (throttling_logging_interval > 3600)
1747 return -EINVAL;
1748
1749 if (throttling_logging_interval > 0) {
1750 raw_spin_lock_irqsave(&adev->throttling_logging_rs.lock, flags);
1751 /*
1752 * Reset the ratelimit timer internals.
1753 * This can effectively restart the timer.
1754 */
1755 adev->throttling_logging_rs.interval =
1756 (throttling_logging_interval - 1) * HZ;
1757 adev->throttling_logging_rs.begin = 0;
1758 adev->throttling_logging_rs.printed = 0;
1759 adev->throttling_logging_rs.missed = 0;
1760 raw_spin_unlock_irqrestore(&adev->throttling_logging_rs.lock, flags);
1761
1762 atomic_set(&adev->throttling_logging_enabled, 1);
1763 } else {
1764 atomic_set(&adev->throttling_logging_enabled, 0);
1765 }
1766
1767 return count;
1768}
1769
1770/**
1771 * DOC: gpu_metrics
1772 *
1773 * The amdgpu driver provides a sysfs API for retrieving current gpu
1774 * metrics data. The file gpu_metrics is used for this. Reading the
1775 * file will dump all the current gpu metrics data.
1776 *
1777 * These data include temperature, frequency, engines utilization,
1778 * power consume, throttler status, fan speed and cpu core statistics(
1779 * available for APU only). That's it will give a snapshot of all sensors
1780 * at the same time.
1781 */
1782static ssize_t amdgpu_get_gpu_metrics(struct device *dev,
1783 struct device_attribute *attr,
1784 char *buf)
1785{
1786 struct drm_device *ddev = dev_get_drvdata(dev);
1787 struct amdgpu_device *adev = drm_to_adev(ddev);
1788 void *gpu_metrics;
1789 ssize_t size = 0;
1790 int ret;
1791
1792 if (amdgpu_in_reset(adev))
1793 return -EPERM;
1794 if (adev->in_suspend && !adev->in_runpm)
1795 return -EPERM;
1796
1797 ret = pm_runtime_get_sync(ddev->dev);
1798 if (ret < 0) {
1799 pm_runtime_put_autosuspend(ddev->dev);
1800 return ret;
1801 }
1802
1803 if (adev->powerplay.pp_funcs->get_gpu_metrics)
1804 size = amdgpu_dpm_get_gpu_metrics(adev, &gpu_metrics);
1805
1806 if (size <= 0)
1807 goto out;
1808
1809 if (size >= PAGE_SIZE)
1810 size = PAGE_SIZE - 1;
1811
1812 memcpy(buf, gpu_metrics, size);
1813
1814out:
1815 pm_runtime_mark_last_busy(ddev->dev);
1816 pm_runtime_put_autosuspend(ddev->dev);
1817
1818 return size;
1819}
1820
1821/**
1822 * DOC: smartshift_apu_power
1823 *
1824 * The amdgpu driver provides a sysfs API for reporting APU power
1825 * share if it supports smartshift. The value is expressed as
1826 * the proportion of stapm limit where stapm limit is the total APU
1827 * power limit. The result is in percentage. If APU power is 130% of
1828 * STAPM, then APU is using 30% of the dGPU's headroom.
1829 */
1830
1831static ssize_t amdgpu_get_smartshift_apu_power(struct device *dev, struct device_attribute *attr,
1832 char *buf)
1833{
1834 struct drm_device *ddev = dev_get_drvdata(dev);
1835 struct amdgpu_device *adev = drm_to_adev(ddev);
1836 uint32_t ss_power, size;
1837 int r = 0;
1838
1839 if (amdgpu_in_reset(adev))
1840 return -EPERM;
1841 if (adev->in_suspend && !adev->in_runpm)
1842 return -EPERM;
1843
1844 r = pm_runtime_get_sync(ddev->dev);
1845 if (r < 0) {
1846 pm_runtime_put_autosuspend(ddev->dev);
1847 return r;
1848 }
1849
1850 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_APU_SHARE,
1851 (void *)&ss_power, &size);
1852 if (r)
1853 goto out;
1854
1855 r = sysfs_emit(buf, "%u%%\n", ss_power);
1856
1857out:
1858 pm_runtime_mark_last_busy(ddev->dev);
1859 pm_runtime_put_autosuspend(ddev->dev);
1860 return r;
1861}
1862
1863/**
1864 * DOC: smartshift_dgpu_power
1865 *
1866 * The amdgpu driver provides a sysfs API for reporting the dGPU power
1867 * share if the device is in HG and supports smartshift. The value
1868 * is expressed as the proportion of stapm limit where stapm limit
1869 * is the total APU power limit. The value is in percentage. If dGPU
1870 * power is 20% higher than STAPM power(120%), it's using 20% of the
1871 * APU's power headroom.
1872 */
1873
1874static ssize_t amdgpu_get_smartshift_dgpu_power(struct device *dev, struct device_attribute *attr,
1875 char *buf)
1876{
1877 struct drm_device *ddev = dev_get_drvdata(dev);
1878 struct amdgpu_device *adev = drm_to_adev(ddev);
1879 uint32_t ss_power, size;
1880 int r = 0;
1881
1882 if (amdgpu_in_reset(adev))
1883 return -EPERM;
1884 if (adev->in_suspend && !adev->in_runpm)
1885 return -EPERM;
1886
1887 r = pm_runtime_get_sync(ddev->dev);
1888 if (r < 0) {
1889 pm_runtime_put_autosuspend(ddev->dev);
1890 return r;
1891 }
1892
1893 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_DGPU_SHARE,
1894 (void *)&ss_power, &size);
1895
1896 if (r)
1897 goto out;
1898
1899 r = sysfs_emit(buf, "%u%%\n", ss_power);
1900
1901out:
1902 pm_runtime_mark_last_busy(ddev->dev);
1903 pm_runtime_put_autosuspend(ddev->dev);
1904 return r;
1905}
1906
1907/**
1908 * DOC: smartshift_bias
1909 *
1910 * The amdgpu driver provides a sysfs API for reporting the
1911 * smartshift(SS2.0) bias level. The value ranges from -100 to 100
1912 * and the default is 0. -100 sets maximum preference to APU
1913 * and 100 sets max perference to dGPU.
1914 */
1915
1916static ssize_t amdgpu_get_smartshift_bias(struct device *dev,
1917 struct device_attribute *attr,
1918 char *buf)
1919{
1920 int r = 0;
1921
1922 r = sysfs_emit(buf, "%d\n", amdgpu_smartshift_bias);
1923
1924 return r;
1925}
1926
1927static ssize_t amdgpu_set_smartshift_bias(struct device *dev,
1928 struct device_attribute *attr,
1929 const char *buf, size_t count)
1930{
1931 struct drm_device *ddev = dev_get_drvdata(dev);
1932 struct amdgpu_device *adev = drm_to_adev(ddev);
1933 int r = 0;
1934 int bias = 0;
1935
1936 if (amdgpu_in_reset(adev))
1937 return -EPERM;
1938 if (adev->in_suspend && !adev->in_runpm)
1939 return -EPERM;
1940
1941 r = pm_runtime_get_sync(ddev->dev);
1942 if (r < 0) {
1943 pm_runtime_put_autosuspend(ddev->dev);
1944 return r;
1945 }
1946
1947 r = kstrtoint(buf, 10, &bias);
1948 if (r)
1949 goto out;
1950
1951 if (bias > AMDGPU_SMARTSHIFT_MAX_BIAS)
1952 bias = AMDGPU_SMARTSHIFT_MAX_BIAS;
1953 else if (bias < AMDGPU_SMARTSHIFT_MIN_BIAS)
1954 bias = AMDGPU_SMARTSHIFT_MIN_BIAS;
1955
1956 amdgpu_smartshift_bias = bias;
1957 r = count;
1958
1959 /* TODO: upadte bias level with SMU message */
1960
1961out:
1962 pm_runtime_mark_last_busy(ddev->dev);
1963 pm_runtime_put_autosuspend(ddev->dev);
1964 return r;
1965}
1966
1967
1968static int ss_power_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
1969 uint32_t mask, enum amdgpu_device_attr_states *states)
1970{
1971 uint32_t ss_power, size;
1972
1973 if (!amdgpu_acpi_is_power_shift_control_supported())
1974 *states = ATTR_STATE_UNSUPPORTED;
1975 else if ((adev->flags & AMD_IS_PX) &&
1976 !amdgpu_device_supports_smart_shift(adev_to_drm(adev)))
1977 *states = ATTR_STATE_UNSUPPORTED;
1978 else if (amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_APU_SHARE,
1979 (void *)&ss_power, &size))
1980 *states = ATTR_STATE_UNSUPPORTED;
1981 else if (amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_DGPU_SHARE,
1982 (void *)&ss_power, &size))
1983 *states = ATTR_STATE_UNSUPPORTED;
1984
1985 return 0;
1986}
1987
1988static int ss_bias_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
1989 uint32_t mask, enum amdgpu_device_attr_states *states)
1990{
1991 uint32_t ss_power, size;
1992
1993 if (!amdgpu_device_supports_smart_shift(adev_to_drm(adev)))
1994 *states = ATTR_STATE_UNSUPPORTED;
1995 else if (amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_APU_SHARE,
1996 (void *)&ss_power, &size))
1997 *states = ATTR_STATE_UNSUPPORTED;
1998 else if (amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_DGPU_SHARE,
1999 (void *)&ss_power, &size))
2000 *states = ATTR_STATE_UNSUPPORTED;
2001
2002 return 0;
2003}
2004
2005static struct amdgpu_device_attr amdgpu_device_attrs[] = {
2006 AMDGPU_DEVICE_ATTR_RW(power_dpm_state, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2007 AMDGPU_DEVICE_ATTR_RW(power_dpm_force_performance_level, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2008 AMDGPU_DEVICE_ATTR_RO(pp_num_states, ATTR_FLAG_BASIC),
2009 AMDGPU_DEVICE_ATTR_RO(pp_cur_state, ATTR_FLAG_BASIC),
2010 AMDGPU_DEVICE_ATTR_RW(pp_force_state, ATTR_FLAG_BASIC),
2011 AMDGPU_DEVICE_ATTR_RW(pp_table, ATTR_FLAG_BASIC),
2012 AMDGPU_DEVICE_ATTR_RW(pp_dpm_sclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2013 AMDGPU_DEVICE_ATTR_RW(pp_dpm_mclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2014 AMDGPU_DEVICE_ATTR_RW(pp_dpm_socclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2015 AMDGPU_DEVICE_ATTR_RW(pp_dpm_fclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2016 AMDGPU_DEVICE_ATTR_RW(pp_dpm_vclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2017 AMDGPU_DEVICE_ATTR_RW(pp_dpm_dclk, ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
2018 AMDGPU_DEVICE_ATTR_RW(pp_dpm_dcefclk, ATTR_FLAG_BASIC),
2019 AMDGPU_DEVICE_ATTR_RW(pp_dpm_pcie, ATTR_FLAG_BASIC),
2020 AMDGPU_DEVICE_ATTR_RW(pp_sclk_od, ATTR_FLAG_BASIC),
2021 AMDGPU_DEVICE_ATTR_RW(pp_mclk_od, ATTR_FLAG_BASIC),
2022 AMDGPU_DEVICE_ATTR_RW(pp_power_profile_mode, ATTR_FLAG_BASIC),
2023 AMDGPU_DEVICE_ATTR_RW(pp_od_clk_voltage, ATTR_FLAG_BASIC),
2024 AMDGPU_DEVICE_ATTR_RO(gpu_busy_percent, ATTR_FLAG_BASIC),
2025 AMDGPU_DEVICE_ATTR_RO(mem_busy_percent, ATTR_FLAG_BASIC),
2026 AMDGPU_DEVICE_ATTR_RO(pcie_bw, ATTR_FLAG_BASIC),
2027 AMDGPU_DEVICE_ATTR_RW(pp_features, ATTR_FLAG_BASIC),
2028 AMDGPU_DEVICE_ATTR_RO(unique_id, ATTR_FLAG_BASIC),
2029 AMDGPU_DEVICE_ATTR_RW(thermal_throttling_logging, ATTR_FLAG_BASIC),
2030 AMDGPU_DEVICE_ATTR_RO(gpu_metrics, ATTR_FLAG_BASIC),
2031 AMDGPU_DEVICE_ATTR_RO(smartshift_apu_power, ATTR_FLAG_BASIC,
2032 .attr_update = ss_power_attr_update),
2033 AMDGPU_DEVICE_ATTR_RO(smartshift_dgpu_power, ATTR_FLAG_BASIC,
2034 .attr_update = ss_power_attr_update),
2035 AMDGPU_DEVICE_ATTR_RW(smartshift_bias, ATTR_FLAG_BASIC,
2036 .attr_update = ss_bias_attr_update),
2037};
2038
2039static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
2040 uint32_t mask, enum amdgpu_device_attr_states *states)
2041{
2042 struct device_attribute *dev_attr = &attr->dev_attr;
2043 const char *attr_name = dev_attr->attr.name;
2044 struct pp_hwmgr *hwmgr = adev->powerplay.pp_handle;
2045 enum amd_asic_type asic_type = adev->asic_type;
2046
2047 if (!(attr->flags & mask)) {
2048 *states = ATTR_STATE_UNSUPPORTED;
2049 return 0;
2050 }
2051
2052#define DEVICE_ATTR_IS(_name) (!strcmp(attr_name, #_name))
2053
2054 if (DEVICE_ATTR_IS(pp_dpm_socclk)) {
2055 if (asic_type < CHIP_VEGA10)
2056 *states = ATTR_STATE_UNSUPPORTED;
2057 } else if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
2058 if (asic_type < CHIP_VEGA10 ||
2059 asic_type == CHIP_ARCTURUS ||
2060 asic_type == CHIP_ALDEBARAN)
2061 *states = ATTR_STATE_UNSUPPORTED;
2062 } else if (DEVICE_ATTR_IS(pp_dpm_fclk)) {
2063 if (asic_type < CHIP_VEGA20)
2064 *states = ATTR_STATE_UNSUPPORTED;
2065 } else if (DEVICE_ATTR_IS(pp_od_clk_voltage)) {
2066 *states = ATTR_STATE_UNSUPPORTED;
2067 if ((is_support_sw_smu(adev) && adev->smu.od_enabled) ||
2068 (is_support_sw_smu(adev) && adev->smu.is_apu) ||
2069 (!is_support_sw_smu(adev) && hwmgr->od_enabled))
2070 *states = ATTR_STATE_SUPPORTED;
2071 } else if (DEVICE_ATTR_IS(mem_busy_percent)) {
2072 if (adev->flags & AMD_IS_APU || asic_type == CHIP_VEGA10)
2073 *states = ATTR_STATE_UNSUPPORTED;
2074 } else if (DEVICE_ATTR_IS(pcie_bw)) {
2075 /* PCIe Perf counters won't work on APU nodes */
2076 if (adev->flags & AMD_IS_APU)
2077 *states = ATTR_STATE_UNSUPPORTED;
2078 } else if (DEVICE_ATTR_IS(unique_id)) {
2079 if (asic_type != CHIP_VEGA10 &&
2080 asic_type != CHIP_VEGA20 &&
2081 asic_type != CHIP_ARCTURUS)
2082 *states = ATTR_STATE_UNSUPPORTED;
2083 } else if (DEVICE_ATTR_IS(pp_features)) {
2084 if (adev->flags & AMD_IS_APU || asic_type < CHIP_VEGA10)
2085 *states = ATTR_STATE_UNSUPPORTED;
2086 } else if (DEVICE_ATTR_IS(gpu_metrics)) {
2087 if (asic_type < CHIP_VEGA12)
2088 *states = ATTR_STATE_UNSUPPORTED;
2089 } else if (DEVICE_ATTR_IS(pp_dpm_vclk)) {
2090 if (!(asic_type == CHIP_VANGOGH))
2091 *states = ATTR_STATE_UNSUPPORTED;
2092 } else if (DEVICE_ATTR_IS(pp_dpm_dclk)) {
2093 if (!(asic_type == CHIP_VANGOGH))
2094 *states = ATTR_STATE_UNSUPPORTED;
2095 }
2096
2097 if (asic_type == CHIP_ARCTURUS) {
2098 /* Arcturus does not support standalone mclk/socclk/fclk level setting */
2099 if (DEVICE_ATTR_IS(pp_dpm_mclk) ||
2100 DEVICE_ATTR_IS(pp_dpm_socclk) ||
2101 DEVICE_ATTR_IS(pp_dpm_fclk)) {
2102 dev_attr->attr.mode &= ~S_IWUGO;
2103 dev_attr->store = NULL;
2104 }
2105 }
2106
2107 if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
2108 /* SMU MP1 does not support dcefclk level setting */
2109 if (asic_type >= CHIP_NAVI10) {
2110 dev_attr->attr.mode &= ~S_IWUGO;
2111 dev_attr->store = NULL;
2112 }
2113 }
2114
2115#undef DEVICE_ATTR_IS
2116
2117 return 0;
2118}
2119
2120
2121static int amdgpu_device_attr_create(struct amdgpu_device *adev,
2122 struct amdgpu_device_attr *attr,
2123 uint32_t mask, struct list_head *attr_list)
2124{
2125 int ret = 0;
2126 struct device_attribute *dev_attr = &attr->dev_attr;
2127 const char *name = dev_attr->attr.name;
2128 enum amdgpu_device_attr_states attr_states = ATTR_STATE_SUPPORTED;
2129 struct amdgpu_device_attr_entry *attr_entry;
2130
2131 int (*attr_update)(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
2132 uint32_t mask, enum amdgpu_device_attr_states *states) = default_attr_update;
2133
2134 BUG_ON(!attr);
2135
2136 attr_update = attr->attr_update ? attr->attr_update : default_attr_update;
2137
2138 ret = attr_update(adev, attr, mask, &attr_states);
2139 if (ret) {
2140 dev_err(adev->dev, "failed to update device file %s, ret = %d\n",
2141 name, ret);
2142 return ret;
2143 }
2144
2145 if (attr_states == ATTR_STATE_UNSUPPORTED)
2146 return 0;
2147
2148 ret = device_create_file(adev->dev, dev_attr);
2149 if (ret) {
2150 dev_err(adev->dev, "failed to create device file %s, ret = %d\n",
2151 name, ret);
2152 }
2153
2154 attr_entry = kmalloc(sizeof(*attr_entry), GFP_KERNEL);
2155 if (!attr_entry)
2156 return -ENOMEM;
2157
2158 attr_entry->attr = attr;
2159 INIT_LIST_HEAD(&attr_entry->entry);
2160
2161 list_add_tail(&attr_entry->entry, attr_list);
2162
2163 return ret;
2164}
2165
2166static void amdgpu_device_attr_remove(struct amdgpu_device *adev, struct amdgpu_device_attr *attr)
2167{
2168 struct device_attribute *dev_attr = &attr->dev_attr;
2169
2170 device_remove_file(adev->dev, dev_attr);
2171}
2172
2173static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
2174 struct list_head *attr_list);
2175
2176static int amdgpu_device_attr_create_groups(struct amdgpu_device *adev,
2177 struct amdgpu_device_attr *attrs,
2178 uint32_t counts,
2179 uint32_t mask,
2180 struct list_head *attr_list)
2181{
2182 int ret = 0;
2183 uint32_t i = 0;
2184
2185 for (i = 0; i < counts; i++) {
2186 ret = amdgpu_device_attr_create(adev, &attrs[i], mask, attr_list);
2187 if (ret)
2188 goto failed;
2189 }
2190
2191 return 0;
2192
2193failed:
2194 amdgpu_device_attr_remove_groups(adev, attr_list);
2195
2196 return ret;
2197}
2198
2199static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
2200 struct list_head *attr_list)
2201{
2202 struct amdgpu_device_attr_entry *entry, *entry_tmp;
2203
2204 if (list_empty(attr_list))
2205 return ;
2206
2207 list_for_each_entry_safe(entry, entry_tmp, attr_list, entry) {
2208 amdgpu_device_attr_remove(adev, entry->attr);
2209 list_del(&entry->entry);
2210 kfree(entry);
2211 }
2212}
2213
2214static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
2215 struct device_attribute *attr,
2216 char *buf)
2217{
2218 struct amdgpu_device *adev = dev_get_drvdata(dev);
2219 int channel = to_sensor_dev_attr(attr)->index;
2220 int r, temp = 0, size = sizeof(temp);
2221
2222 if (amdgpu_in_reset(adev))
2223 return -EPERM;
2224 if (adev->in_suspend && !adev->in_runpm)
2225 return -EPERM;
2226
2227 if (channel >= PP_TEMP_MAX)
2228 return -EINVAL;
2229
2230 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2231 if (r < 0) {
2232 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2233 return r;
2234 }
2235
2236 switch (channel) {
2237 case PP_TEMP_JUNCTION:
2238 /* get current junction temperature */
2239 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_HOTSPOT_TEMP,
2240 (void *)&temp, &size);
2241 break;
2242 case PP_TEMP_EDGE:
2243 /* get current edge temperature */
2244 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_EDGE_TEMP,
2245 (void *)&temp, &size);
2246 break;
2247 case PP_TEMP_MEM:
2248 /* get current memory temperature */
2249 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_TEMP,
2250 (void *)&temp, &size);
2251 break;
2252 default:
2253 r = -EINVAL;
2254 break;
2255 }
2256
2257 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2258 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2259
2260 if (r)
2261 return r;
2262
2263 return sysfs_emit(buf, "%d\n", temp);
2264}
2265
2266static ssize_t amdgpu_hwmon_show_temp_thresh(struct device *dev,
2267 struct device_attribute *attr,
2268 char *buf)
2269{
2270 struct amdgpu_device *adev = dev_get_drvdata(dev);
2271 int hyst = to_sensor_dev_attr(attr)->index;
2272 int temp;
2273
2274 if (hyst)
2275 temp = adev->pm.dpm.thermal.min_temp;
2276 else
2277 temp = adev->pm.dpm.thermal.max_temp;
2278
2279 return sysfs_emit(buf, "%d\n", temp);
2280}
2281
2282static ssize_t amdgpu_hwmon_show_hotspot_temp_thresh(struct device *dev,
2283 struct device_attribute *attr,
2284 char *buf)
2285{
2286 struct amdgpu_device *adev = dev_get_drvdata(dev);
2287 int hyst = to_sensor_dev_attr(attr)->index;
2288 int temp;
2289
2290 if (hyst)
2291 temp = adev->pm.dpm.thermal.min_hotspot_temp;
2292 else
2293 temp = adev->pm.dpm.thermal.max_hotspot_crit_temp;
2294
2295 return sysfs_emit(buf, "%d\n", temp);
2296}
2297
2298static ssize_t amdgpu_hwmon_show_mem_temp_thresh(struct device *dev,
2299 struct device_attribute *attr,
2300 char *buf)
2301{
2302 struct amdgpu_device *adev = dev_get_drvdata(dev);
2303 int hyst = to_sensor_dev_attr(attr)->index;
2304 int temp;
2305
2306 if (hyst)
2307 temp = adev->pm.dpm.thermal.min_mem_temp;
2308 else
2309 temp = adev->pm.dpm.thermal.max_mem_crit_temp;
2310
2311 return sysfs_emit(buf, "%d\n", temp);
2312}
2313
2314static ssize_t amdgpu_hwmon_show_temp_label(struct device *dev,
2315 struct device_attribute *attr,
2316 char *buf)
2317{
2318 int channel = to_sensor_dev_attr(attr)->index;
2319
2320 if (channel >= PP_TEMP_MAX)
2321 return -EINVAL;
2322
2323 return sysfs_emit(buf, "%s\n", temp_label[channel].label);
2324}
2325
2326static ssize_t amdgpu_hwmon_show_temp_emergency(struct device *dev,
2327 struct device_attribute *attr,
2328 char *buf)
2329{
2330 struct amdgpu_device *adev = dev_get_drvdata(dev);
2331 int channel = to_sensor_dev_attr(attr)->index;
2332 int temp = 0;
2333
2334 if (channel >= PP_TEMP_MAX)
2335 return -EINVAL;
2336
2337 switch (channel) {
2338 case PP_TEMP_JUNCTION:
2339 temp = adev->pm.dpm.thermal.max_hotspot_emergency_temp;
2340 break;
2341 case PP_TEMP_EDGE:
2342 temp = adev->pm.dpm.thermal.max_edge_emergency_temp;
2343 break;
2344 case PP_TEMP_MEM:
2345 temp = adev->pm.dpm.thermal.max_mem_emergency_temp;
2346 break;
2347 }
2348
2349 return sysfs_emit(buf, "%d\n", temp);
2350}
2351
2352static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
2353 struct device_attribute *attr,
2354 char *buf)
2355{
2356 struct amdgpu_device *adev = dev_get_drvdata(dev);
2357 u32 pwm_mode = 0;
2358 int ret;
2359
2360 if (amdgpu_in_reset(adev))
2361 return -EPERM;
2362 if (adev->in_suspend && !adev->in_runpm)
2363 return -EPERM;
2364
2365 ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2366 if (ret < 0) {
2367 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2368 return ret;
2369 }
2370
2371 if (!adev->powerplay.pp_funcs->get_fan_control_mode) {
2372 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2373 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2374 return -EINVAL;
2375 }
2376
2377 pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
2378
2379 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2380 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2381
2382 return sprintf(buf, "%u\n", pwm_mode);
2383}
2384
2385static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev,
2386 struct device_attribute *attr,
2387 const char *buf,
2388 size_t count)
2389{
2390 struct amdgpu_device *adev = dev_get_drvdata(dev);
2391 int err, ret;
2392 int value;
2393
2394 if (amdgpu_in_reset(adev))
2395 return -EPERM;
2396 if (adev->in_suspend && !adev->in_runpm)
2397 return -EPERM;
2398
2399 err = kstrtoint(buf, 10, &value);
2400 if (err)
2401 return err;
2402
2403 ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2404 if (ret < 0) {
2405 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2406 return ret;
2407 }
2408
2409 if (!adev->powerplay.pp_funcs->set_fan_control_mode) {
2410 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2411 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2412 return -EINVAL;
2413 }
2414
2415 amdgpu_dpm_set_fan_control_mode(adev, value);
2416
2417 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2418 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2419
2420 return count;
2421}
2422
2423static ssize_t amdgpu_hwmon_get_pwm1_min(struct device *dev,
2424 struct device_attribute *attr,
2425 char *buf)
2426{
2427 return sprintf(buf, "%i\n", 0);
2428}
2429
2430static ssize_t amdgpu_hwmon_get_pwm1_max(struct device *dev,
2431 struct device_attribute *attr,
2432 char *buf)
2433{
2434 return sprintf(buf, "%i\n", 255);
2435}
2436
2437static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
2438 struct device_attribute *attr,
2439 const char *buf, size_t count)
2440{
2441 struct amdgpu_device *adev = dev_get_drvdata(dev);
2442 int err;
2443 u32 value;
2444 u32 pwm_mode;
2445
2446 if (amdgpu_in_reset(adev))
2447 return -EPERM;
2448 if (adev->in_suspend && !adev->in_runpm)
2449 return -EPERM;
2450
2451 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2452 if (err < 0) {
2453 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2454 return err;
2455 }
2456
2457 pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
2458 if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
2459 pr_info("manual fan speed control should be enabled first\n");
2460 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2461 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2462 return -EINVAL;
2463 }
2464
2465 err = kstrtou32(buf, 10, &value);
2466 if (err) {
2467 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2468 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2469 return err;
2470 }
2471
2472 value = (value * 100) / 255;
2473
2474 if (adev->powerplay.pp_funcs->set_fan_speed_percent)
2475 err = amdgpu_dpm_set_fan_speed_percent(adev, value);
2476 else
2477 err = -EINVAL;
2478
2479 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2480 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2481
2482 if (err)
2483 return err;
2484
2485 return count;
2486}
2487
2488static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
2489 struct device_attribute *attr,
2490 char *buf)
2491{
2492 struct amdgpu_device *adev = dev_get_drvdata(dev);
2493 int err;
2494 u32 speed = 0;
2495
2496 if (amdgpu_in_reset(adev))
2497 return -EPERM;
2498 if (adev->in_suspend && !adev->in_runpm)
2499 return -EPERM;
2500
2501 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2502 if (err < 0) {
2503 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2504 return err;
2505 }
2506
2507 if (adev->powerplay.pp_funcs->get_fan_speed_percent)
2508 err = amdgpu_dpm_get_fan_speed_percent(adev, &speed);
2509 else
2510 err = -EINVAL;
2511
2512 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2513 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2514
2515 if (err)
2516 return err;
2517
2518 speed = (speed * 255) / 100;
2519
2520 return sprintf(buf, "%i\n", speed);
2521}
2522
2523static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
2524 struct device_attribute *attr,
2525 char *buf)
2526{
2527 struct amdgpu_device *adev = dev_get_drvdata(dev);
2528 int err;
2529 u32 speed = 0;
2530
2531 if (amdgpu_in_reset(adev))
2532 return -EPERM;
2533 if (adev->in_suspend && !adev->in_runpm)
2534 return -EPERM;
2535
2536 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2537 if (err < 0) {
2538 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2539 return err;
2540 }
2541
2542 if (adev->powerplay.pp_funcs->get_fan_speed_rpm)
2543 err = amdgpu_dpm_get_fan_speed_rpm(adev, &speed);
2544 else
2545 err = -EINVAL;
2546
2547 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2548 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2549
2550 if (err)
2551 return err;
2552
2553 return sprintf(buf, "%i\n", speed);
2554}
2555
2556static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev,
2557 struct device_attribute *attr,
2558 char *buf)
2559{
2560 struct amdgpu_device *adev = dev_get_drvdata(dev);
2561 u32 min_rpm = 0;
2562 u32 size = sizeof(min_rpm);
2563 int r;
2564
2565 if (amdgpu_in_reset(adev))
2566 return -EPERM;
2567 if (adev->in_suspend && !adev->in_runpm)
2568 return -EPERM;
2569
2570 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2571 if (r < 0) {
2572 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2573 return r;
2574 }
2575
2576 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MIN_FAN_RPM,
2577 (void *)&min_rpm, &size);
2578
2579 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2580 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2581
2582 if (r)
2583 return r;
2584
2585 return sysfs_emit(buf, "%d\n", min_rpm);
2586}
2587
2588static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
2589 struct device_attribute *attr,
2590 char *buf)
2591{
2592 struct amdgpu_device *adev = dev_get_drvdata(dev);
2593 u32 max_rpm = 0;
2594 u32 size = sizeof(max_rpm);
2595 int r;
2596
2597 if (amdgpu_in_reset(adev))
2598 return -EPERM;
2599 if (adev->in_suspend && !adev->in_runpm)
2600 return -EPERM;
2601
2602 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2603 if (r < 0) {
2604 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2605 return r;
2606 }
2607
2608 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MAX_FAN_RPM,
2609 (void *)&max_rpm, &size);
2610
2611 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2612 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2613
2614 if (r)
2615 return r;
2616
2617 return sysfs_emit(buf, "%d\n", max_rpm);
2618}
2619
2620static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
2621 struct device_attribute *attr,
2622 char *buf)
2623{
2624 struct amdgpu_device *adev = dev_get_drvdata(dev);
2625 int err;
2626 u32 rpm = 0;
2627
2628 if (amdgpu_in_reset(adev))
2629 return -EPERM;
2630 if (adev->in_suspend && !adev->in_runpm)
2631 return -EPERM;
2632
2633 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2634 if (err < 0) {
2635 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2636 return err;
2637 }
2638
2639 if (adev->powerplay.pp_funcs->get_fan_speed_rpm)
2640 err = amdgpu_dpm_get_fan_speed_rpm(adev, &rpm);
2641 else
2642 err = -EINVAL;
2643
2644 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2645 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2646
2647 if (err)
2648 return err;
2649
2650 return sprintf(buf, "%i\n", rpm);
2651}
2652
2653static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
2654 struct device_attribute *attr,
2655 const char *buf, size_t count)
2656{
2657 struct amdgpu_device *adev = dev_get_drvdata(dev);
2658 int err;
2659 u32 value;
2660 u32 pwm_mode;
2661
2662 if (amdgpu_in_reset(adev))
2663 return -EPERM;
2664 if (adev->in_suspend && !adev->in_runpm)
2665 return -EPERM;
2666
2667 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2668 if (err < 0) {
2669 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2670 return err;
2671 }
2672
2673 pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
2674
2675 if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
2676 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2677 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2678 return -ENODATA;
2679 }
2680
2681 err = kstrtou32(buf, 10, &value);
2682 if (err) {
2683 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2684 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2685 return err;
2686 }
2687
2688 if (adev->powerplay.pp_funcs->set_fan_speed_rpm)
2689 err = amdgpu_dpm_set_fan_speed_rpm(adev, value);
2690 else
2691 err = -EINVAL;
2692
2693 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2694 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2695
2696 if (err)
2697 return err;
2698
2699 return count;
2700}
2701
2702static ssize_t amdgpu_hwmon_get_fan1_enable(struct device *dev,
2703 struct device_attribute *attr,
2704 char *buf)
2705{
2706 struct amdgpu_device *adev = dev_get_drvdata(dev);
2707 u32 pwm_mode = 0;
2708 int ret;
2709
2710 if (amdgpu_in_reset(adev))
2711 return -EPERM;
2712 if (adev->in_suspend && !adev->in_runpm)
2713 return -EPERM;
2714
2715 ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2716 if (ret < 0) {
2717 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2718 return ret;
2719 }
2720
2721 if (!adev->powerplay.pp_funcs->get_fan_control_mode) {
2722 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2723 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2724 return -EINVAL;
2725 }
2726
2727 pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
2728
2729 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2730 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2731
2732 return sprintf(buf, "%i\n", pwm_mode == AMD_FAN_CTRL_AUTO ? 0 : 1);
2733}
2734
2735static ssize_t amdgpu_hwmon_set_fan1_enable(struct device *dev,
2736 struct device_attribute *attr,
2737 const char *buf,
2738 size_t count)
2739{
2740 struct amdgpu_device *adev = dev_get_drvdata(dev);
2741 int err;
2742 int value;
2743 u32 pwm_mode;
2744
2745 if (amdgpu_in_reset(adev))
2746 return -EPERM;
2747 if (adev->in_suspend && !adev->in_runpm)
2748 return -EPERM;
2749
2750 err = kstrtoint(buf, 10, &value);
2751 if (err)
2752 return err;
2753
2754 if (value == 0)
2755 pwm_mode = AMD_FAN_CTRL_AUTO;
2756 else if (value == 1)
2757 pwm_mode = AMD_FAN_CTRL_MANUAL;
2758 else
2759 return -EINVAL;
2760
2761 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2762 if (err < 0) {
2763 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2764 return err;
2765 }
2766
2767 if (!adev->powerplay.pp_funcs->set_fan_control_mode) {
2768 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2769 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2770 return -EINVAL;
2771 }
2772 amdgpu_dpm_set_fan_control_mode(adev, pwm_mode);
2773
2774 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2775 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2776
2777 return count;
2778}
2779
2780static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev,
2781 struct device_attribute *attr,
2782 char *buf)
2783{
2784 struct amdgpu_device *adev = dev_get_drvdata(dev);
2785 u32 vddgfx;
2786 int r, size = sizeof(vddgfx);
2787
2788 if (amdgpu_in_reset(adev))
2789 return -EPERM;
2790 if (adev->in_suspend && !adev->in_runpm)
2791 return -EPERM;
2792
2793 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2794 if (r < 0) {
2795 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2796 return r;
2797 }
2798
2799 /* get the voltage */
2800 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX,
2801 (void *)&vddgfx, &size);
2802
2803 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2804 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2805
2806 if (r)
2807 return r;
2808
2809 return sysfs_emit(buf, "%d\n", vddgfx);
2810}
2811
2812static ssize_t amdgpu_hwmon_show_vddgfx_label(struct device *dev,
2813 struct device_attribute *attr,
2814 char *buf)
2815{
2816 return sysfs_emit(buf, "vddgfx\n");
2817}
2818
2819static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
2820 struct device_attribute *attr,
2821 char *buf)
2822{
2823 struct amdgpu_device *adev = dev_get_drvdata(dev);
2824 u32 vddnb;
2825 int r, size = sizeof(vddnb);
2826
2827 if (amdgpu_in_reset(adev))
2828 return -EPERM;
2829 if (adev->in_suspend && !adev->in_runpm)
2830 return -EPERM;
2831
2832 /* only APUs have vddnb */
2833 if (!(adev->flags & AMD_IS_APU))
2834 return -EINVAL;
2835
2836 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2837 if (r < 0) {
2838 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2839 return r;
2840 }
2841
2842 /* get the voltage */
2843 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB,
2844 (void *)&vddnb, &size);
2845
2846 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2847 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2848
2849 if (r)
2850 return r;
2851
2852 return sysfs_emit(buf, "%d\n", vddnb);
2853}
2854
2855static ssize_t amdgpu_hwmon_show_vddnb_label(struct device *dev,
2856 struct device_attribute *attr,
2857 char *buf)
2858{
2859 return sysfs_emit(buf, "vddnb\n");
2860}
2861
2862static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
2863 struct device_attribute *attr,
2864 char *buf)
2865{
2866 struct amdgpu_device *adev = dev_get_drvdata(dev);
2867 u32 query = 0;
2868 int r, size = sizeof(u32);
2869 unsigned uw;
2870
2871 if (amdgpu_in_reset(adev))
2872 return -EPERM;
2873 if (adev->in_suspend && !adev->in_runpm)
2874 return -EPERM;
2875
2876 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2877 if (r < 0) {
2878 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2879 return r;
2880 }
2881
2882 /* get the voltage */
2883 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER,
2884 (void *)&query, &size);
2885
2886 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2887 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2888
2889 if (r)
2890 return r;
2891
2892 /* convert to microwatts */
2893 uw = (query >> 8) * 1000000 + (query & 0xff) * 1000;
2894
2895 return sysfs_emit(buf, "%u\n", uw);
2896}
2897
2898static ssize_t amdgpu_hwmon_show_power_cap_min(struct device *dev,
2899 struct device_attribute *attr,
2900 char *buf)
2901{
2902 return sprintf(buf, "%i\n", 0);
2903}
2904
2905
2906static ssize_t amdgpu_hwmon_show_power_cap_generic(struct device *dev,
2907 struct device_attribute *attr,
2908 char *buf,
2909 enum pp_power_limit_level pp_limit_level)
2910{
2911 struct amdgpu_device *adev = dev_get_drvdata(dev);
2912 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
2913 enum pp_power_type power_type = to_sensor_dev_attr(attr)->index;
2914 uint32_t limit;
2915 ssize_t size;
2916 int r;
2917
2918 if (amdgpu_in_reset(adev))
2919 return -EPERM;
2920 if (adev->in_suspend && !adev->in_runpm)
2921 return -EPERM;
2922
2923 if ( !(pp_funcs && pp_funcs->get_power_limit))
2924 return -ENODATA;
2925
2926 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2927 if (r < 0) {
2928 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2929 return r;
2930 }
2931
2932 r = pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit,
2933 pp_limit_level, power_type);
2934
2935 if (!r)
2936 size = sysfs_emit(buf, "%u\n", limit * 1000000);
2937 else
2938 size = sysfs_emit(buf, "\n");
2939
2940 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2941 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2942
2943 return size;
2944}
2945
2946
2947static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
2948 struct device_attribute *attr,
2949 char *buf)
2950{
2951 return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_MAX);
2952
2953}
2954
2955static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
2956 struct device_attribute *attr,
2957 char *buf)
2958{
2959 return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_CURRENT);
2960
2961}
2962
2963static ssize_t amdgpu_hwmon_show_power_cap_default(struct device *dev,
2964 struct device_attribute *attr,
2965 char *buf)
2966{
2967 return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_DEFAULT);
2968
2969}
2970
2971static ssize_t amdgpu_hwmon_show_power_label(struct device *dev,
2972 struct device_attribute *attr,
2973 char *buf)
2974{
2975 int limit_type = to_sensor_dev_attr(attr)->index;
2976
2977 return sysfs_emit(buf, "%s\n",
2978 limit_type == SMU_FAST_PPT_LIMIT ? "fastPPT" : "slowPPT");
2979}
2980
2981static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
2982 struct device_attribute *attr,
2983 const char *buf,
2984 size_t count)
2985{
2986 struct amdgpu_device *adev = dev_get_drvdata(dev);
2987 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
2988 int limit_type = to_sensor_dev_attr(attr)->index;
2989 int err;
2990 u32 value;
2991
2992 if (amdgpu_in_reset(adev))
2993 return -EPERM;
2994 if (adev->in_suspend && !adev->in_runpm)
2995 return -EPERM;
2996
2997 if (amdgpu_sriov_vf(adev))
2998 return -EINVAL;
2999
3000 err = kstrtou32(buf, 10, &value);
3001 if (err)
3002 return err;
3003
3004 value = value / 1000000; /* convert to Watt */
3005 value |= limit_type << 24;
3006
3007 err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
3008 if (err < 0) {
3009 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3010 return err;
3011 }
3012
3013 if (pp_funcs && pp_funcs->set_power_limit)
3014 err = pp_funcs->set_power_limit(adev->powerplay.pp_handle, value);
3015 else
3016 err = -EINVAL;
3017
3018 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
3019 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3020
3021 if (err)
3022 return err;
3023
3024 return count;
3025}
3026
3027static ssize_t amdgpu_hwmon_show_sclk(struct device *dev,
3028 struct device_attribute *attr,
3029 char *buf)
3030{
3031 struct amdgpu_device *adev = dev_get_drvdata(dev);
3032 uint32_t sclk;
3033 int r, size = sizeof(sclk);
3034
3035 if (amdgpu_in_reset(adev))
3036 return -EPERM;
3037 if (adev->in_suspend && !adev->in_runpm)
3038 return -EPERM;
3039
3040 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
3041 if (r < 0) {
3042 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3043 return r;
3044 }
3045
3046 /* get the sclk */
3047 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_SCLK,
3048 (void *)&sclk, &size);
3049
3050 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
3051 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3052
3053 if (r)
3054 return r;
3055
3056 return sysfs_emit(buf, "%u\n", sclk * 10 * 1000);
3057}
3058
3059static ssize_t amdgpu_hwmon_show_sclk_label(struct device *dev,
3060 struct device_attribute *attr,
3061 char *buf)
3062{
3063 return sysfs_emit(buf, "sclk\n");
3064}
3065
3066static ssize_t amdgpu_hwmon_show_mclk(struct device *dev,
3067 struct device_attribute *attr,
3068 char *buf)
3069{
3070 struct amdgpu_device *adev = dev_get_drvdata(dev);
3071 uint32_t mclk;
3072 int r, size = sizeof(mclk);
3073
3074 if (amdgpu_in_reset(adev))
3075 return -EPERM;
3076 if (adev->in_suspend && !adev->in_runpm)
3077 return -EPERM;
3078
3079 r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
3080 if (r < 0) {
3081 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3082 return r;
3083 }
3084
3085 /* get the sclk */
3086 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_MCLK,
3087 (void *)&mclk, &size);
3088
3089 pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
3090 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3091
3092 if (r)
3093 return r;
3094
3095 return sysfs_emit(buf, "%u\n", mclk * 10 * 1000);
3096}
3097
3098static ssize_t amdgpu_hwmon_show_mclk_label(struct device *dev,
3099 struct device_attribute *attr,
3100 char *buf)
3101{
3102 return sysfs_emit(buf, "mclk\n");
3103}
3104
3105/**
3106 * DOC: hwmon
3107 *
3108 * The amdgpu driver exposes the following sensor interfaces:
3109 *
3110 * - GPU temperature (via the on-die sensor)
3111 *
3112 * - GPU voltage
3113 *
3114 * - Northbridge voltage (APUs only)
3115 *
3116 * - GPU power
3117 *
3118 * - GPU fan
3119 *
3120 * - GPU gfx/compute engine clock
3121 *
3122 * - GPU memory clock (dGPU only)
3123 *
3124 * hwmon interfaces for GPU temperature:
3125 *
3126 * - temp[1-3]_input: the on die GPU temperature in millidegrees Celsius
3127 * - temp2_input and temp3_input are supported on SOC15 dGPUs only
3128 *
3129 * - temp[1-3]_label: temperature channel label
3130 * - temp2_label and temp3_label are supported on SOC15 dGPUs only
3131 *
3132 * - temp[1-3]_crit: temperature critical max value in millidegrees Celsius
3133 * - temp2_crit and temp3_crit are supported on SOC15 dGPUs only
3134 *
3135 * - temp[1-3]_crit_hyst: temperature hysteresis for critical limit in millidegrees Celsius
3136 * - temp2_crit_hyst and temp3_crit_hyst are supported on SOC15 dGPUs only
3137 *
3138 * - temp[1-3]_emergency: temperature emergency max value(asic shutdown) in millidegrees Celsius
3139 * - these are supported on SOC15 dGPUs only
3140 *
3141 * hwmon interfaces for GPU voltage:
3142 *
3143 * - in0_input: the voltage on the GPU in millivolts
3144 *
3145 * - in1_input: the voltage on the Northbridge in millivolts
3146 *
3147 * hwmon interfaces for GPU power:
3148 *
3149 * - power1_average: average power used by the GPU in microWatts
3150 *
3151 * - power1_cap_min: minimum cap supported in microWatts
3152 *
3153 * - power1_cap_max: maximum cap supported in microWatts
3154 *
3155 * - power1_cap: selected power cap in microWatts
3156 *
3157 * hwmon interfaces for GPU fan:
3158 *
3159 * - pwm1: pulse width modulation fan level (0-255)
3160 *
3161 * - pwm1_enable: pulse width modulation fan control method (0: no fan speed control, 1: manual fan speed control using pwm interface, 2: automatic fan speed control)
3162 *
3163 * - pwm1_min: pulse width modulation fan control minimum level (0)
3164 *
3165 * - pwm1_max: pulse width modulation fan control maximum level (255)
3166 *
3167 * - fan1_min: a minimum value Unit: revolution/min (RPM)
3168 *
3169 * - fan1_max: a maximum value Unit: revolution/max (RPM)
3170 *
3171 * - fan1_input: fan speed in RPM
3172 *
3173 * - fan[1-\*]_target: Desired fan speed Unit: revolution/min (RPM)
3174 *
3175 * - fan[1-\*]_enable: Enable or disable the sensors.1: Enable 0: Disable
3176 *
3177 * hwmon interfaces for GPU clocks:
3178 *
3179 * - freq1_input: the gfx/compute clock in hertz
3180 *
3181 * - freq2_input: the memory clock in hertz
3182 *
3183 * You can use hwmon tools like sensors to view this information on your system.
3184 *
3185 */
3186
3187static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_EDGE);
3188static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 0);
3189static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 1);
3190static SENSOR_DEVICE_ATTR(temp1_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_EDGE);
3191static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_JUNCTION);
3192static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, amdgpu_hwmon_show_hotspot_temp_thresh, NULL, 0);
3193static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, amdgpu_hwmon_show_hotspot_temp_thresh, NULL, 1);
3194static SENSOR_DEVICE_ATTR(temp2_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_JUNCTION);
3195static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_MEM);
3196static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO, amdgpu_hwmon_show_mem_temp_thresh, NULL, 0);
3197static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, amdgpu_hwmon_show_mem_temp_thresh, NULL, 1);
3198static SENSOR_DEVICE_ATTR(temp3_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_MEM);
3199static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_EDGE);
3200static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_JUNCTION);
3201static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_MEM);
3202static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1, amdgpu_hwmon_set_pwm1, 0);
3203static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1_enable, amdgpu_hwmon_set_pwm1_enable, 0);
3204static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, amdgpu_hwmon_get_pwm1_min, NULL, 0);
3205static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, amdgpu_hwmon_get_pwm1_max, NULL, 0);
3206static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, amdgpu_hwmon_get_fan1_input, NULL, 0);
3207static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, amdgpu_hwmon_get_fan1_min, NULL, 0);
3208static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, amdgpu_hwmon_get_fan1_max, NULL, 0);
3209static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_target, amdgpu_hwmon_set_fan1_target, 0);
3210static SENSOR_DEVICE_ATTR(fan1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_enable, amdgpu_hwmon_set_fan1_enable, 0);
3211static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, amdgpu_hwmon_show_vddgfx, NULL, 0);
3212static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, amdgpu_hwmon_show_vddgfx_label, NULL, 0);
3213static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, amdgpu_hwmon_show_vddnb, NULL, 0);
3214static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, amdgpu_hwmon_show_vddnb_label, NULL, 0);
3215static SENSOR_DEVICE_ATTR(power1_average, S_IRUGO, amdgpu_hwmon_show_power_avg, NULL, 0);
3216static SENSOR_DEVICE_ATTR(power1_cap_max, S_IRUGO, amdgpu_hwmon_show_power_cap_max, NULL, 0);
3217static SENSOR_DEVICE_ATTR(power1_cap_min, S_IRUGO, amdgpu_hwmon_show_power_cap_min, NULL, 0);
3218static SENSOR_DEVICE_ATTR(power1_cap, S_IRUGO | S_IWUSR, amdgpu_hwmon_show_power_cap, amdgpu_hwmon_set_power_cap, 0);
3219static SENSOR_DEVICE_ATTR(power1_cap_default, S_IRUGO, amdgpu_hwmon_show_power_cap_default, NULL, 0);
3220static SENSOR_DEVICE_ATTR(power1_label, S_IRUGO, amdgpu_hwmon_show_power_label, NULL, 0);
3221static SENSOR_DEVICE_ATTR(power2_average, S_IRUGO, amdgpu_hwmon_show_power_avg, NULL, 1);
3222static SENSOR_DEVICE_ATTR(power2_cap_max, S_IRUGO, amdgpu_hwmon_show_power_cap_max, NULL, 1);
3223static SENSOR_DEVICE_ATTR(power2_cap_min, S_IRUGO, amdgpu_hwmon_show_power_cap_min, NULL, 1);
3224static SENSOR_DEVICE_ATTR(power2_cap, S_IRUGO | S_IWUSR, amdgpu_hwmon_show_power_cap, amdgpu_hwmon_set_power_cap, 1);
3225static SENSOR_DEVICE_ATTR(power2_cap_default, S_IRUGO, amdgpu_hwmon_show_power_cap_default, NULL, 1);
3226static SENSOR_DEVICE_ATTR(power2_label, S_IRUGO, amdgpu_hwmon_show_power_label, NULL, 1);
3227static SENSOR_DEVICE_ATTR(freq1_input, S_IRUGO, amdgpu_hwmon_show_sclk, NULL, 0);
3228static SENSOR_DEVICE_ATTR(freq1_label, S_IRUGO, amdgpu_hwmon_show_sclk_label, NULL, 0);
3229static SENSOR_DEVICE_ATTR(freq2_input, S_IRUGO, amdgpu_hwmon_show_mclk, NULL, 0);
3230static SENSOR_DEVICE_ATTR(freq2_label, S_IRUGO, amdgpu_hwmon_show_mclk_label, NULL, 0);
3231
3232static struct attribute *hwmon_attributes[] = {
3233 &sensor_dev_attr_temp1_input.dev_attr.attr,
3234 &sensor_dev_attr_temp1_crit.dev_attr.attr,
3235 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
3236 &sensor_dev_attr_temp2_input.dev_attr.attr,
3237 &sensor_dev_attr_temp2_crit.dev_attr.attr,
3238 &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
3239 &sensor_dev_attr_temp3_input.dev_attr.attr,
3240 &sensor_dev_attr_temp3_crit.dev_attr.attr,
3241 &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
3242 &sensor_dev_attr_temp1_emergency.dev_attr.attr,
3243 &sensor_dev_attr_temp2_emergency.dev_attr.attr,
3244 &sensor_dev_attr_temp3_emergency.dev_attr.attr,
3245 &sensor_dev_attr_temp1_label.dev_attr.attr,
3246 &sensor_dev_attr_temp2_label.dev_attr.attr,
3247 &sensor_dev_attr_temp3_label.dev_attr.attr,
3248 &sensor_dev_attr_pwm1.dev_attr.attr,
3249 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
3250 &sensor_dev_attr_pwm1_min.dev_attr.attr,
3251 &sensor_dev_attr_pwm1_max.dev_attr.attr,
3252 &sensor_dev_attr_fan1_input.dev_attr.attr,
3253 &sensor_dev_attr_fan1_min.dev_attr.attr,
3254 &sensor_dev_attr_fan1_max.dev_attr.attr,
3255 &sensor_dev_attr_fan1_target.dev_attr.attr,
3256 &sensor_dev_attr_fan1_enable.dev_attr.attr,
3257 &sensor_dev_attr_in0_input.dev_attr.attr,
3258 &sensor_dev_attr_in0_label.dev_attr.attr,
3259 &sensor_dev_attr_in1_input.dev_attr.attr,
3260 &sensor_dev_attr_in1_label.dev_attr.attr,
3261 &sensor_dev_attr_power1_average.dev_attr.attr,
3262 &sensor_dev_attr_power1_cap_max.dev_attr.attr,
3263 &sensor_dev_attr_power1_cap_min.dev_attr.attr,
3264 &sensor_dev_attr_power1_cap.dev_attr.attr,
3265 &sensor_dev_attr_power1_cap_default.dev_attr.attr,
3266 &sensor_dev_attr_power1_label.dev_attr.attr,
3267 &sensor_dev_attr_power2_average.dev_attr.attr,
3268 &sensor_dev_attr_power2_cap_max.dev_attr.attr,
3269 &sensor_dev_attr_power2_cap_min.dev_attr.attr,
3270 &sensor_dev_attr_power2_cap.dev_attr.attr,
3271 &sensor_dev_attr_power2_cap_default.dev_attr.attr,
3272 &sensor_dev_attr_power2_label.dev_attr.attr,
3273 &sensor_dev_attr_freq1_input.dev_attr.attr,
3274 &sensor_dev_attr_freq1_label.dev_attr.attr,
3275 &sensor_dev_attr_freq2_input.dev_attr.attr,
3276 &sensor_dev_attr_freq2_label.dev_attr.attr,
3277 NULL
3278};
3279
3280static umode_t hwmon_attributes_visible(struct kobject *kobj,
3281 struct attribute *attr, int index)
3282{
3283 struct device *dev = kobj_to_dev(kobj);
3284 struct amdgpu_device *adev = dev_get_drvdata(dev);
3285 umode_t effective_mode = attr->mode;
3286
3287 /* under multi-vf mode, the hwmon attributes are all not supported */
3288 if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev))
3289 return 0;
3290
3291 /* there is no fan under pp one vf mode */
3292 if (amdgpu_sriov_is_pp_one_vf(adev) &&
3293 (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3294 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3295 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3296 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3297 attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3298 attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3299 attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3300 attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3301 attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3302 return 0;
3303
3304 /* Skip fan attributes if fan is not present */
3305 if (adev->pm.no_fan && (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3306 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3307 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3308 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3309 attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3310 attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3311 attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3312 attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3313 attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3314 return 0;
3315
3316 /* Skip fan attributes on APU */
3317 if ((adev->flags & AMD_IS_APU) &&
3318 (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3319 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3320 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3321 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3322 attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3323 attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3324 attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3325 attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3326 attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3327 return 0;
3328
3329 /* Skip crit temp on APU */
3330 if ((adev->flags & AMD_IS_APU) && (adev->family >= AMDGPU_FAMILY_CZ) &&
3331 (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
3332 attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr))
3333 return 0;
3334
3335 /* Skip limit attributes if DPM is not enabled */
3336 if (!adev->pm.dpm_enabled &&
3337 (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
3338 attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
3339 attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3340 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3341 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3342 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3343 attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3344 attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3345 attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3346 attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3347 attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3348 return 0;
3349
3350 if (!is_support_sw_smu(adev)) {
3351 /* mask fan attributes if we have no bindings for this asic to expose */
3352 if ((!adev->powerplay.pp_funcs->get_fan_speed_percent &&
3353 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */
3354 (!adev->powerplay.pp_funcs->get_fan_control_mode &&
3355 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */
3356 effective_mode &= ~S_IRUGO;
3357
3358 if ((!adev->powerplay.pp_funcs->set_fan_speed_percent &&
3359 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */
3360 (!adev->powerplay.pp_funcs->set_fan_control_mode &&
3361 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */
3362 effective_mode &= ~S_IWUSR;
3363 }
3364
3365 if (((adev->family == AMDGPU_FAMILY_SI) ||
3366 ((adev->flags & AMD_IS_APU) &&
3367 (adev->asic_type != CHIP_VANGOGH))) && /* not implemented yet */
3368 (attr == &sensor_dev_attr_power1_cap_max.dev_attr.attr ||
3369 attr == &sensor_dev_attr_power1_cap_min.dev_attr.attr||
3370 attr == &sensor_dev_attr_power1_cap.dev_attr.attr ||
3371 attr == &sensor_dev_attr_power1_cap_default.dev_attr.attr))
3372 return 0;
3373
3374 if (((adev->family == AMDGPU_FAMILY_SI) ||
3375 ((adev->flags & AMD_IS_APU) &&
3376 (adev->asic_type < CHIP_RENOIR))) && /* not implemented yet */
3377 (attr == &sensor_dev_attr_power1_average.dev_attr.attr))
3378 return 0;
3379
3380 if (!is_support_sw_smu(adev)) {
3381 /* hide max/min values if we can't both query and manage the fan */
3382 if ((!adev->powerplay.pp_funcs->set_fan_speed_percent &&
3383 !adev->powerplay.pp_funcs->get_fan_speed_percent) &&
3384 (!adev->powerplay.pp_funcs->set_fan_speed_rpm &&
3385 !adev->powerplay.pp_funcs->get_fan_speed_rpm) &&
3386 (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3387 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
3388 return 0;
3389
3390 if ((!adev->powerplay.pp_funcs->set_fan_speed_rpm &&
3391 !adev->powerplay.pp_funcs->get_fan_speed_rpm) &&
3392 (attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3393 attr == &sensor_dev_attr_fan1_min.dev_attr.attr))
3394 return 0;
3395 }
3396
3397 if ((adev->family == AMDGPU_FAMILY_SI || /* not implemented yet */
3398 adev->family == AMDGPU_FAMILY_KV) && /* not implemented yet */
3399 (attr == &sensor_dev_attr_in0_input.dev_attr.attr ||
3400 attr == &sensor_dev_attr_in0_label.dev_attr.attr))
3401 return 0;
3402
3403 /* only APUs have vddnb */
3404 if (!(adev->flags & AMD_IS_APU) &&
3405 (attr == &sensor_dev_attr_in1_input.dev_attr.attr ||
3406 attr == &sensor_dev_attr_in1_label.dev_attr.attr))
3407 return 0;
3408
3409 /* no mclk on APUs */
3410 if ((adev->flags & AMD_IS_APU) &&
3411 (attr == &sensor_dev_attr_freq2_input.dev_attr.attr ||
3412 attr == &sensor_dev_attr_freq2_label.dev_attr.attr))
3413 return 0;
3414
3415 /* only SOC15 dGPUs support hotspot and mem temperatures */
3416 if (((adev->flags & AMD_IS_APU) ||
3417 adev->asic_type < CHIP_VEGA10) &&
3418 (attr == &sensor_dev_attr_temp2_crit.dev_attr.attr ||
3419 attr == &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr ||
3420 attr == &sensor_dev_attr_temp3_crit.dev_attr.attr ||
3421 attr == &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr ||
3422 attr == &sensor_dev_attr_temp1_emergency.dev_attr.attr ||
3423 attr == &sensor_dev_attr_temp2_emergency.dev_attr.attr ||
3424 attr == &sensor_dev_attr_temp3_emergency.dev_attr.attr ||
3425 attr == &sensor_dev_attr_temp2_input.dev_attr.attr ||
3426 attr == &sensor_dev_attr_temp3_input.dev_attr.attr ||
3427 attr == &sensor_dev_attr_temp2_label.dev_attr.attr ||
3428 attr == &sensor_dev_attr_temp3_label.dev_attr.attr))
3429 return 0;
3430
3431 /* only Vangogh has fast PPT limit and power labels */
3432 if (!(adev->asic_type == CHIP_VANGOGH) &&
3433 (attr == &sensor_dev_attr_power2_average.dev_attr.attr ||
3434 attr == &sensor_dev_attr_power2_cap_max.dev_attr.attr ||
3435 attr == &sensor_dev_attr_power2_cap_min.dev_attr.attr ||
3436 attr == &sensor_dev_attr_power2_cap.dev_attr.attr ||
3437 attr == &sensor_dev_attr_power2_cap_default.dev_attr.attr ||
3438 attr == &sensor_dev_attr_power2_label.dev_attr.attr ||
3439 attr == &sensor_dev_attr_power1_label.dev_attr.attr))
3440 return 0;
3441
3442 return effective_mode;
3443}
3444
3445static const struct attribute_group hwmon_attrgroup = {
3446 .attrs = hwmon_attributes,
3447 .is_visible = hwmon_attributes_visible,
3448};
3449
3450static const struct attribute_group *hwmon_groups[] = {
3451 &hwmon_attrgroup,
3452 NULL
3453};
3454
3455int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
3456{
3457 int ret;
3458 uint32_t mask = 0;
3459
3460 if (adev->pm.sysfs_initialized)
3461 return 0;
3462
3463 if (adev->pm.dpm_enabled == 0)
3464 return 0;
3465
3466 INIT_LIST_HEAD(&adev->pm.pm_attr_list);
3467
3468 adev->pm.int_hwmon_dev = hwmon_device_register_with_groups(adev->dev,
3469 DRIVER_NAME, adev,
3470 hwmon_groups);
3471 if (IS_ERR(adev->pm.int_hwmon_dev)) {
3472 ret = PTR_ERR(adev->pm.int_hwmon_dev);
3473 dev_err(adev->dev,
3474 "Unable to register hwmon device: %d\n", ret);
3475 return ret;
3476 }
3477
3478 switch (amdgpu_virt_get_sriov_vf_mode(adev)) {
3479 case SRIOV_VF_MODE_ONE_VF:
3480 mask = ATTR_FLAG_ONEVF;
3481 break;
3482 case SRIOV_VF_MODE_MULTI_VF:
3483 mask = 0;
3484 break;
3485 case SRIOV_VF_MODE_BARE_METAL:
3486 default:
3487 mask = ATTR_FLAG_MASK_ALL;
3488 break;
3489 }
3490
3491 ret = amdgpu_device_attr_create_groups(adev,
3492 amdgpu_device_attrs,
3493 ARRAY_SIZE(amdgpu_device_attrs),
3494 mask,
3495 &adev->pm.pm_attr_list);
3496 if (ret)
3497 return ret;
3498
3499 adev->pm.sysfs_initialized = true;
3500
3501 return 0;
3502}
3503
3504void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev)
3505{
3506 if (adev->pm.dpm_enabled == 0)
3507 return;
3508
3509 if (adev->pm.int_hwmon_dev)
3510 hwmon_device_unregister(adev->pm.int_hwmon_dev);
3511
3512 amdgpu_device_attr_remove_groups(adev, &adev->pm.pm_attr_list);
3513}
3514
3515/*
3516 * Debugfs info
3517 */
3518#if defined(CONFIG_DEBUG_FS)
3519
3520static void amdgpu_debugfs_prints_cpu_info(struct seq_file *m,
3521 struct amdgpu_device *adev) {
3522 uint16_t *p_val;
3523 uint32_t size;
3524 int i;
3525
3526 if (is_support_cclk_dpm(adev)) {
3527 p_val = kcalloc(adev->smu.cpu_core_num, sizeof(uint16_t),
3528 GFP_KERNEL);
3529
3530 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_CPU_CLK,
3531 (void *)p_val, &size)) {
3532 for (i = 0; i < adev->smu.cpu_core_num; i++)
3533 seq_printf(m, "\t%u MHz (CPU%d)\n",
3534 *(p_val + i), i);
3535 }
3536
3537 kfree(p_val);
3538 }
3539}
3540
3541static int amdgpu_debugfs_pm_info_pp(struct seq_file *m, struct amdgpu_device *adev)
3542{
3543 uint32_t value;
3544 uint64_t value64 = 0;
3545 uint32_t query = 0;
3546 int size;
3547
3548 /* GPU Clocks */
3549 size = sizeof(value);
3550 seq_printf(m, "GFX Clocks and Power:\n");
3551
3552 amdgpu_debugfs_prints_cpu_info(m, adev);
3553
3554 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_MCLK, (void *)&value, &size))
3555 seq_printf(m, "\t%u MHz (MCLK)\n", value/100);
3556 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_SCLK, (void *)&value, &size))
3557 seq_printf(m, "\t%u MHz (SCLK)\n", value/100);
3558 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK, (void *)&value, &size))
3559 seq_printf(m, "\t%u MHz (PSTATE_SCLK)\n", value/100);
3560 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK, (void *)&value, &size))
3561 seq_printf(m, "\t%u MHz (PSTATE_MCLK)\n", value/100);
3562 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX, (void *)&value, &size))
3563 seq_printf(m, "\t%u mV (VDDGFX)\n", value);
3564 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB, (void *)&value, &size))
3565 seq_printf(m, "\t%u mV (VDDNB)\n", value);
3566 size = sizeof(uint32_t);
3567 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER, (void *)&query, &size))
3568 seq_printf(m, "\t%u.%u W (average GPU)\n", query >> 8, query & 0xff);
3569 size = sizeof(value);
3570 seq_printf(m, "\n");
3571
3572 /* GPU Temp */
3573 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP, (void *)&value, &size))
3574 seq_printf(m, "GPU Temperature: %u C\n", value/1000);
3575
3576 /* GPU Load */
3577 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD, (void *)&value, &size))
3578 seq_printf(m, "GPU Load: %u %%\n", value);
3579 /* MEM Load */
3580 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_LOAD, (void *)&value, &size))
3581 seq_printf(m, "MEM Load: %u %%\n", value);
3582
3583 seq_printf(m, "\n");
3584
3585 /* SMC feature mask */
3586 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_ENABLED_SMC_FEATURES_MASK, (void *)&value64, &size))
3587 seq_printf(m, "SMC Feature Mask: 0x%016llx\n", value64);
3588
3589 if (adev->asic_type > CHIP_VEGA20) {
3590 /* VCN clocks */
3591 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCN_POWER_STATE, (void *)&value, &size)) {
3592 if (!value) {
3593 seq_printf(m, "VCN: Disabled\n");
3594 } else {
3595 seq_printf(m, "VCN: Enabled\n");
3596 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_DCLK, (void *)&value, &size))
3597 seq_printf(m, "\t%u MHz (DCLK)\n", value/100);
3598 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_VCLK, (void *)&value, &size))
3599 seq_printf(m, "\t%u MHz (VCLK)\n", value/100);
3600 }
3601 }
3602 seq_printf(m, "\n");
3603 } else {
3604 /* UVD clocks */
3605 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_POWER, (void *)&value, &size)) {
3606 if (!value) {
3607 seq_printf(m, "UVD: Disabled\n");
3608 } else {
3609 seq_printf(m, "UVD: Enabled\n");
3610 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_DCLK, (void *)&value, &size))
3611 seq_printf(m, "\t%u MHz (DCLK)\n", value/100);
3612 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_VCLK, (void *)&value, &size))
3613 seq_printf(m, "\t%u MHz (VCLK)\n", value/100);
3614 }
3615 }
3616 seq_printf(m, "\n");
3617
3618 /* VCE clocks */
3619 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_POWER, (void *)&value, &size)) {
3620 if (!value) {
3621 seq_printf(m, "VCE: Disabled\n");
3622 } else {
3623 seq_printf(m, "VCE: Enabled\n");
3624 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_ECCLK, (void *)&value, &size))
3625 seq_printf(m, "\t%u MHz (ECCLK)\n", value/100);
3626 }
3627 }
3628 }
3629
3630 return 0;
3631}
3632
3633static void amdgpu_parse_cg_state(struct seq_file *m, u32 flags)
3634{
3635 int i;
3636
3637 for (i = 0; clocks[i].flag; i++)
3638 seq_printf(m, "\t%s: %s\n", clocks[i].name,
3639 (flags & clocks[i].flag) ? "On" : "Off");
3640}
3641
3642static int amdgpu_debugfs_pm_info_show(struct seq_file *m, void *unused)
3643{
3644 struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
3645 struct drm_device *dev = adev_to_drm(adev);
3646 u32 flags = 0;
3647 int r;
3648
3649 if (amdgpu_in_reset(adev))
3650 return -EPERM;
3651 if (adev->in_suspend && !adev->in_runpm)
3652 return -EPERM;
3653
3654 r = pm_runtime_get_sync(dev->dev);
3655 if (r < 0) {
3656 pm_runtime_put_autosuspend(dev->dev);
3657 return r;
3658 }
3659
3660 if (!adev->pm.dpm_enabled) {
3661 seq_printf(m, "dpm not enabled\n");
3662 pm_runtime_mark_last_busy(dev->dev);
3663 pm_runtime_put_autosuspend(dev->dev);
3664 return 0;
3665 }
3666
3667 if (!is_support_sw_smu(adev) &&
3668 adev->powerplay.pp_funcs->debugfs_print_current_performance_level) {
3669 mutex_lock(&adev->pm.mutex);
3670 if (adev->powerplay.pp_funcs->debugfs_print_current_performance_level)
3671 adev->powerplay.pp_funcs->debugfs_print_current_performance_level(adev, m);
3672 else
3673 seq_printf(m, "Debugfs support not implemented for this asic\n");
3674 mutex_unlock(&adev->pm.mutex);
3675 r = 0;
3676 } else {
3677 r = amdgpu_debugfs_pm_info_pp(m, adev);
3678 }
3679 if (r)
3680 goto out;
3681
3682 amdgpu_device_ip_get_clockgating_state(adev, &flags);
3683
3684 seq_printf(m, "Clock Gating Flags Mask: 0x%x\n", flags);
3685 amdgpu_parse_cg_state(m, flags);
3686 seq_printf(m, "\n");
3687
3688out:
3689 pm_runtime_mark_last_busy(dev->dev);
3690 pm_runtime_put_autosuspend(dev->dev);
3691
3692 return r;
3693}
3694
3695DEFINE_SHOW_ATTRIBUTE(amdgpu_debugfs_pm_info);
3696
3697/*
3698 * amdgpu_pm_priv_buffer_read - Read memory region allocated to FW
3699 *
3700 * Reads debug memory region allocated to PMFW
3701 */
3702static ssize_t amdgpu_pm_prv_buffer_read(struct file *f, char __user *buf,
3703 size_t size, loff_t *pos)
3704{
3705 struct amdgpu_device *adev = file_inode(f)->i_private;
3706 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
3707 void *pp_handle = adev->powerplay.pp_handle;
3708 size_t smu_prv_buf_size;
3709 void *smu_prv_buf;
3710
3711 if (amdgpu_in_reset(adev))
3712 return -EPERM;
3713 if (adev->in_suspend && !adev->in_runpm)
3714 return -EPERM;
3715
3716 if (pp_funcs && pp_funcs->get_smu_prv_buf_details)
3717 pp_funcs->get_smu_prv_buf_details(pp_handle, &smu_prv_buf,
3718 &smu_prv_buf_size);
3719 else
3720 return -ENOSYS;
3721
3722 if (!smu_prv_buf || !smu_prv_buf_size)
3723 return -EINVAL;
3724
3725 return simple_read_from_buffer(buf, size, pos, smu_prv_buf,
3726 smu_prv_buf_size);
3727}
3728
3729static const struct file_operations amdgpu_debugfs_pm_prv_buffer_fops = {
3730 .owner = THIS_MODULE,
3731 .open = simple_open,
3732 .read = amdgpu_pm_prv_buffer_read,
3733 .llseek = default_llseek,
3734};
3735
3736#endif
3737
3738void amdgpu_debugfs_pm_init(struct amdgpu_device *adev)
3739{
3740#if defined(CONFIG_DEBUG_FS)
3741 struct drm_minor *minor = adev_to_drm(adev)->primary;
3742 struct dentry *root = minor->debugfs_root;
3743
3744 debugfs_create_file("amdgpu_pm_info", 0444, root, adev,
3745 &amdgpu_debugfs_pm_info_fops);
3746
3747 if (adev->pm.smu_prv_buffer_size > 0)
3748 debugfs_create_file_size("amdgpu_pm_prv_buffer", 0444, root,
3749 adev,
3750 &amdgpu_debugfs_pm_prv_buffer_fops,
3751 adev->pm.smu_prv_buffer_size);
3752#endif
3753}