drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c

   1 /*
   2  * Permission is hereby granted, free of charge, to any person obtaining a
   3  * copy of this software and associated documentation files (the "Software"),
   4  * to deal in the Software without restriction, including without limitation
   5  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   6  * and/or sell copies of the Software, and to permit persons to whom the
   7  * Software is furnished to do so, subject to the following conditions:
   8  *
   9  * The above copyright notice and this permission notice shall be included in
  10  * all copies or substantial portions of the Software.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  13  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  14  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  15  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  16  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  17  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  18  * OTHER DEALINGS IN THE SOFTWARE.
  19  *
  20  * Authors: Rafał Miłecki <zajec5@gmail.com>
  21  *          Alex Deucher <alexdeucher@gmail.com>
  22  */
  23 #include <drm/drmP.h>
  24 #include "amdgpu.h"
  25 #include "amdgpu_drv.h"
  26 #include "amdgpu_pm.h"
  27 #include "amdgpu_dpm.h"
  28 #include "atom.h"
  29 #include <linux/power_supply.h>
  30 #include <linux/hwmon.h>
  31 #include <linux/hwmon-sysfs.h>
  32
  33 #include "amd_powerplay.h"
  34
  35 static int amdgpu_debugfs_pm_init(struct amdgpu_device *adev);
  36
  37 void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev)
  38 {
  39         if (adev->pp_enabled)
  40                 /* TODO */
  41                 return;
  42
  43         if (adev->pm.dpm_enabled) {
  44                 mutex_lock(&adev->pm.mutex);
  45                 if (power_supply_is_system_supplied() > 0)
  46                         adev->pm.dpm.ac_power = true;
  47                 else
  48                         adev->pm.dpm.ac_power = false;
  49                 if (adev->pm.funcs->enable_bapm)
  50                         amdgpu_dpm_enable_bapm(adev, adev->pm.dpm.ac_power);
  51                 mutex_unlock(&adev->pm.mutex);
  52         }
  53 }
  54
  55 static ssize_t amdgpu_get_dpm_state(struct device *dev,
  56                                     struct device_attribute *attr,
  57                                     char *buf)
  58 {
  59         struct drm_device *ddev = dev_get_drvdata(dev);
  60         struct amdgpu_device *adev = ddev->dev_private;
  61         enum amd_pm_state_type pm;
  62
  63         if (adev->pp_enabled) {
  64                 pm = amdgpu_dpm_get_current_power_state(adev);
  65         } else
  66                 pm = adev->pm.dpm.user_state;
  67
  68         return snprintf(buf, PAGE_SIZE, "%s\n",
  69                         (pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
  70                         (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
  71 }
  72
  73 static ssize_t amdgpu_set_dpm_state(struct device *dev,
  74                                     struct device_attribute *attr,
  75                                     const char *buf,
  76                                     size_t count)
  77 {
  78         struct drm_device *ddev = dev_get_drvdata(dev);
  79         struct amdgpu_device *adev = ddev->dev_private;
  80         enum amd_pm_state_type  state;
  81
  82         if (strncmp("battery", buf, strlen("battery")) == 0)
  83                 state = POWER_STATE_TYPE_BATTERY;
  84         else if (strncmp("balanced", buf, strlen("balanced")) == 0)
  85                 state = POWER_STATE_TYPE_BALANCED;
  86         else if (strncmp("performance", buf, strlen("performance")) == 0)
  87                 state = POWER_STATE_TYPE_PERFORMANCE;
  88         else {
  89                 count = -EINVAL;
  90                 goto fail;
  91         }
  92
  93         if (adev->pp_enabled) {
  94                 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_ENABLE_USER_STATE, &state, NULL);
  95         } else {
  96                 mutex_lock(&adev->pm.mutex);
  97                 adev->pm.dpm.user_state = state;
  98                 mutex_unlock(&adev->pm.mutex);
  99
 100                 /* Can't set dpm state when the card is off */
 101                 if (!(adev->flags & AMD_IS_PX) ||
 102                     (ddev->switch_power_state == DRM_SWITCH_POWER_ON))
 103                         amdgpu_pm_compute_clocks(adev);
 104         }
 105 fail:
 106         return count;
 107 }
 108
 109 static ssize_t amdgpu_get_dpm_forced_performance_level(struct device *dev,
 110                                                 struct device_attribute *attr,
 111                                                                 char *buf)
 112 {
 113         struct drm_device *ddev = dev_get_drvdata(dev);
 114         struct amdgpu_device *adev = ddev->dev_private;
 115
 116         if  ((adev->flags & AMD_IS_PX) &&
 117              (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
 118                 return snprintf(buf, PAGE_SIZE, "off\n");
 119
 120         if (adev->pp_enabled) {
 121                 enum amd_dpm_forced_level level;
 122
 123                 level = amdgpu_dpm_get_performance_level(adev);
 124                 return snprintf(buf, PAGE_SIZE, "%s\n",
 125                                 (level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
 126                                 (level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" :
 127                                 (level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" :
 128                                 (level == AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" : "unknown");
 129         } else {
 130                 enum amdgpu_dpm_forced_level level;
 131
 132                 level = adev->pm.dpm.forced_level;
 133                 return snprintf(buf, PAGE_SIZE, "%s\n",
 134                                 (level == AMDGPU_DPM_FORCED_LEVEL_AUTO) ? "auto" :
 135                                 (level == AMDGPU_DPM_FORCED_LEVEL_LOW) ? "low" : "high");
 136         }
 137 }
 138
 139 static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
 140                                                        struct device_attribute *attr,
 141                                                        const char *buf,
 142                                                        size_t count)
 143 {
 144         struct drm_device *ddev = dev_get_drvdata(dev);
 145         struct amdgpu_device *adev = ddev->dev_private;
 146         enum amdgpu_dpm_forced_level level;
 147         int ret = 0;
 148
 149         /* Can't force performance level when the card is off */
 150         if  ((adev->flags & AMD_IS_PX) &&
 151              (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
 152                 return -EINVAL;
 153
 154         if (strncmp("low", buf, strlen("low")) == 0) {
 155                 level = AMDGPU_DPM_FORCED_LEVEL_LOW;
 156         } else if (strncmp("high", buf, strlen("high")) == 0) {
 157                 level = AMDGPU_DPM_FORCED_LEVEL_HIGH;
 158         } else if (strncmp("auto", buf, strlen("auto")) == 0) {
 159                 level = AMDGPU_DPM_FORCED_LEVEL_AUTO;
 160         } else if (strncmp("manual", buf, strlen("manual")) == 0) {
 161                 level = AMDGPU_DPM_FORCED_LEVEL_MANUAL;
 162         } else {
 163                 count = -EINVAL;
 164                 goto fail;
 165         }
 166
 167         if (adev->pp_enabled)
 168                 amdgpu_dpm_force_performance_level(adev, level);
 169         else {
 170                 mutex_lock(&adev->pm.mutex);
 171                 if (adev->pm.dpm.thermal_active) {
 172                         count = -EINVAL;
 173                         mutex_unlock(&adev->pm.mutex);
 174                         goto fail;
 175                 }
 176                 ret = amdgpu_dpm_force_performance_level(adev, level);
 177                 if (ret)
 178                         count = -EINVAL;
 179                 else
 180                         adev->pm.dpm.forced_level = level;
 181                 mutex_unlock(&adev->pm.mutex);
 182         }
 183 fail:
 184         return count;
 185 }
 186
 187 static ssize_t amdgpu_get_pp_num_states(struct device *dev,
 188                 struct device_attribute *attr,
 189                 char *buf)
 190 {
 191         struct drm_device *ddev = dev_get_drvdata(dev);
 192         struct amdgpu_device *adev = ddev->dev_private;
 193         struct pp_states_info data;
 194         int i, buf_len;
 195
 196         if (adev->pp_enabled)
 197                 amdgpu_dpm_get_pp_num_states(adev, &data);
 198
 199         buf_len = snprintf(buf, PAGE_SIZE, "states: %d\n", data.nums);
 200         for (i = 0; i < data.nums; i++)
 201                 buf_len += snprintf(buf + buf_len, PAGE_SIZE, "%d %s\n", i,
 202                                 (data.states[i] == POWER_STATE_TYPE_INTERNAL_BOOT) ? "boot" :
 203                                 (data.states[i] == POWER_STATE_TYPE_BATTERY) ? "battery" :
 204                                 (data.states[i] == POWER_STATE_TYPE_BALANCED) ? "balanced" :
 205                                 (data.states[i] == POWER_STATE_TYPE_PERFORMANCE) ? "performance" : "default");
 206
 207         return buf_len;
 208 }
 209
 210 static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
 211                 struct device_attribute *attr,
 212                 char *buf)
 213 {
 214         struct drm_device *ddev = dev_get_drvdata(dev);
 215         struct amdgpu_device *adev = ddev->dev_private;
 216         struct pp_states_info data;
 217         enum amd_pm_state_type pm = 0;
 218         int i = 0;
 219
 220         if (adev->pp_enabled) {
 221
 222                 pm = amdgpu_dpm_get_current_power_state(adev);
 223                 amdgpu_dpm_get_pp_num_states(adev, &data);
 224
 225                 for (i = 0; i < data.nums; i++) {
 226                         if (pm == data.states[i])
 227                                 break;
 228                 }
 229
 230                 if (i == data.nums)
 231                         i = -EINVAL;
 232         }
 233
 234         return snprintf(buf, PAGE_SIZE, "%d\n", i);
 235 }
 236
 237 static ssize_t amdgpu_get_pp_force_state(struct device *dev,
 238                 struct device_attribute *attr,
 239                 char *buf)
 240 {
 241         struct drm_device *ddev = dev_get_drvdata(dev);
 242         struct amdgpu_device *adev = ddev->dev_private;
 243         struct pp_states_info data;
 244         enum amd_pm_state_type pm = 0;
 245         int i;
 246
 247         if (adev->pp_force_state_enabled && adev->pp_enabled) {
 248                 pm = amdgpu_dpm_get_current_power_state(adev);
 249                 amdgpu_dpm_get_pp_num_states(adev, &data);
 250
 251                 for (i = 0; i < data.nums; i++) {
 252                         if (pm == data.states[i])
 253                                 break;
 254                 }
 255
 256                 if (i == data.nums)
 257                         i = -EINVAL;
 258
 259                 return snprintf(buf, PAGE_SIZE, "%d\n", i);
 260
 261         } else
 262                 return snprintf(buf, PAGE_SIZE, "\n");
 263 }
 264
 265 static ssize_t amdgpu_set_pp_force_state(struct device *dev,
 266                 struct device_attribute *attr,
 267                 const char *buf,
 268                 size_t count)
 269 {
 270         struct drm_device *ddev = dev_get_drvdata(dev);
 271         struct amdgpu_device *adev = ddev->dev_private;
 272         enum amd_pm_state_type state = 0;
 273         unsigned long idx;
 274         int ret;
 275
 276         if (strlen(buf) == 1)
 277                 adev->pp_force_state_enabled = false;
 278         else if (adev->pp_enabled) {
 279                 struct pp_states_info data;
 280
 281                 ret = kstrtoul(buf, 0, &idx);
 282                 if (ret || idx >= ARRAY_SIZE(data.states)) {
 283                         count = -EINVAL;
 284                         goto fail;
 285                 }
 286
 287                 amdgpu_dpm_get_pp_num_states(adev, &data);
 288                 state = data.states[idx];
 289                 /* only set user selected power states */
 290                 if (state != POWER_STATE_TYPE_INTERNAL_BOOT &&
 291                     state != POWER_STATE_TYPE_DEFAULT) {
 292                         amdgpu_dpm_dispatch_task(adev,
 293                                         AMD_PP_EVENT_ENABLE_USER_STATE, &state, NULL);
 294                         adev->pp_force_state_enabled = true;
 295                 }
 296         }
 297 fail:
 298         return count;
 299 }
 300
 301 static ssize_t amdgpu_get_pp_table(struct device *dev,
 302                 struct device_attribute *attr,
 303                 char *buf)
 304 {
 305         struct drm_device *ddev = dev_get_drvdata(dev);
 306         struct amdgpu_device *adev = ddev->dev_private;
 307         char *table = NULL;
 308         int size, i;
 309
 310         if (adev->pp_enabled)
 311                 size = amdgpu_dpm_get_pp_table(adev, &table);
 312         else
 313                 return 0;
 314
 315         if (size >= PAGE_SIZE)
 316                 size = PAGE_SIZE - 1;
 317
 318         for (i = 0; i < size; i++) {
 319                 sprintf(buf + i, "%02x", table[i]);
 320         }
 321         sprintf(buf + i, "\n");
 322
 323         return size;
 324 }
 325
 326 static ssize_t amdgpu_set_pp_table(struct device *dev,
 327                 struct device_attribute *attr,
 328                 const char *buf,
 329                 size_t count)
 330 {
 331         struct drm_device *ddev = dev_get_drvdata(dev);
 332         struct amdgpu_device *adev = ddev->dev_private;
 333
 334         if (adev->pp_enabled)
 335                 amdgpu_dpm_set_pp_table(adev, buf, count);
 336
 337         return count;
 338 }
 339
 340 static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
 341                 struct device_attribute *attr,
 342                 char *buf)
 343 {
 344         struct drm_device *ddev = dev_get_drvdata(dev);
 345         struct amdgpu_device *adev = ddev->dev_private;
 346         ssize_t size = 0;
 347
 348         if (adev->pp_enabled)
 349                 size = amdgpu_dpm_print_clock_levels(adev, PP_SCLK, buf);
 350         else if (adev->pm.funcs->print_clock_levels)
 351                 size = adev->pm.funcs->print_clock_levels(adev, PP_SCLK, buf);
 352
 353         return size;
 354 }
 355
 356 static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
 357                 struct device_attribute *attr,
 358                 const char *buf,
 359                 size_t count)
 360 {
 361         struct drm_device *ddev = dev_get_drvdata(dev);
 362         struct amdgpu_device *adev = ddev->dev_private;
 363         int ret;
 364         long level;
 365         uint32_t i, mask = 0;
 366         char sub_str[2];
 367
 368         for (i = 0; i < strlen(buf); i++) {
 369                 if (*(buf + i) == '\n')
 370                         continue;
 371                 sub_str[0] = *(buf + i);
 372                 sub_str[1] = '\0';
 373                 ret = kstrtol(sub_str, 0, &level);
 374
 375                 if (ret) {
 376                         count = -EINVAL;
 377                         goto fail;
 378                 }
 379                 mask |= 1 << level;
 380         }
 381
 382         if (adev->pp_enabled)
 383                 amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask);
 384         else if (adev->pm.funcs->force_clock_level)
 385                 adev->pm.funcs->force_clock_level(adev, PP_SCLK, mask);
 386 fail:
 387         return count;
 388 }
 389
 390 static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
 391                 struct device_attribute *attr,
 392                 char *buf)
 393 {
 394         struct drm_device *ddev = dev_get_drvdata(dev);
 395         struct amdgpu_device *adev = ddev->dev_private;
 396         ssize_t size = 0;
 397
 398         if (adev->pp_enabled)
 399                 size = amdgpu_dpm_print_clock_levels(adev, PP_MCLK, buf);
 400         else if (adev->pm.funcs->print_clock_levels)
 401                 size = adev->pm.funcs->print_clock_levels(adev, PP_MCLK, buf);
 402
 403         return size;
 404 }
 405
 406 static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
 407                 struct device_attribute *attr,
 408                 const char *buf,
 409                 size_t count)
 410 {
 411         struct drm_device *ddev = dev_get_drvdata(dev);
 412         struct amdgpu_device *adev = ddev->dev_private;
 413         int ret;
 414         long level;
 415         uint32_t i, mask = 0;
 416         char sub_str[2];
 417
 418         for (i = 0; i < strlen(buf); i++) {
 419                 if (*(buf + i) == '\n')
 420                         continue;
 421                 sub_str[0] = *(buf + i);
 422                 sub_str[1] = '\0';
 423                 ret = kstrtol(sub_str, 0, &level);
 424
 425                 if (ret) {
 426                         count = -EINVAL;
 427                         goto fail;
 428                 }
 429                 mask |= 1 << level;
 430         }
 431
 432         if (adev->pp_enabled)
 433                 amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask);
 434         else if (adev->pm.funcs->force_clock_level)
 435                 adev->pm.funcs->force_clock_level(adev, PP_MCLK, mask);
 436 fail:
 437         return count;
 438 }
 439
 440 static ssize_t amdgpu_get_pp_dpm_pcie(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 = ddev->dev_private;
 446         ssize_t size = 0;
 447
 448         if (adev->pp_enabled)
 449                 size = amdgpu_dpm_print_clock_levels(adev, PP_PCIE, buf);
 450         else if (adev->pm.funcs->print_clock_levels)
 451                 size = adev->pm.funcs->print_clock_levels(adev, PP_PCIE, buf);
 452
 453         return size;
 454 }
 455
 456 static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
 457                 struct device_attribute *attr,
 458                 const char *buf,
 459                 size_t count)
 460 {
 461         struct drm_device *ddev = dev_get_drvdata(dev);
 462         struct amdgpu_device *adev = ddev->dev_private;
 463         int ret;
 464         long level;
 465         uint32_t i, mask = 0;
 466         char sub_str[2];
 467
 468         for (i = 0; i < strlen(buf); i++) {
 469                 if (*(buf + i) == '\n')
 470                         continue;
 471                 sub_str[0] = *(buf + i);
 472                 sub_str[1] = '\0';
 473                 ret = kstrtol(sub_str, 0, &level);
 474
 475                 if (ret) {
 476                         count = -EINVAL;
 477                         goto fail;
 478                 }
 479                 mask |= 1 << level;
 480         }
 481
 482         if (adev->pp_enabled)
 483                 amdgpu_dpm_force_clock_level(adev, PP_PCIE, mask);
 484         else if (adev->pm.funcs->force_clock_level)
 485                 adev->pm.funcs->force_clock_level(adev, PP_PCIE, mask);
 486 fail:
 487         return count;
 488 }
 489
 490 static ssize_t amdgpu_get_pp_sclk_od(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 = ddev->dev_private;
 496         uint32_t value = 0;
 497
 498         if (adev->pp_enabled)
 499                 value = amdgpu_dpm_get_sclk_od(adev);
 500         else if (adev->pm.funcs->get_sclk_od)
 501                 value = adev->pm.funcs->get_sclk_od(adev);
 502
 503         return snprintf(buf, PAGE_SIZE, "%d\n", value);
 504 }
 505
 506 static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
 507                 struct device_attribute *attr,
 508                 const char *buf,
 509                 size_t count)
 510 {
 511         struct drm_device *ddev = dev_get_drvdata(dev);
 512         struct amdgpu_device *adev = ddev->dev_private;
 513         int ret;
 514         long int value;
 515
 516         ret = kstrtol(buf, 0, &value);
 517
 518         if (ret) {
 519                 count = -EINVAL;
 520                 goto fail;
 521         }
 522
 523         if (adev->pp_enabled) {
 524                 amdgpu_dpm_set_sclk_od(adev, (uint32_t)value);
 525                 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_READJUST_POWER_STATE, NULL, NULL);
 526         } else if (adev->pm.funcs->set_sclk_od) {
 527                 adev->pm.funcs->set_sclk_od(adev, (uint32_t)value);
 528                 adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
 529                 amdgpu_pm_compute_clocks(adev);
 530         }
 531
 532 fail:
 533         return count;
 534 }
 535
 536 static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
 537                 struct device_attribute *attr,
 538                 char *buf)
 539 {
 540         struct drm_device *ddev = dev_get_drvdata(dev);
 541         struct amdgpu_device *adev = ddev->dev_private;
 542         uint32_t value = 0;
 543
 544         if (adev->pp_enabled)
 545                 value = amdgpu_dpm_get_mclk_od(adev);
 546         else if (adev->pm.funcs->get_mclk_od)
 547                 value = adev->pm.funcs->get_mclk_od(adev);
 548
 549         return snprintf(buf, PAGE_SIZE, "%d\n", value);
 550 }
 551
 552 static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
 553                 struct device_attribute *attr,
 554                 const char *buf,
 555                 size_t count)
 556 {
 557         struct drm_device *ddev = dev_get_drvdata(dev);
 558         struct amdgpu_device *adev = ddev->dev_private;
 559         int ret;
 560         long int value;
 561
 562         ret = kstrtol(buf, 0, &value);
 563
 564         if (ret) {
 565                 count = -EINVAL;
 566                 goto fail;
 567         }
 568
 569         if (adev->pp_enabled) {
 570                 amdgpu_dpm_set_mclk_od(adev, (uint32_t)value);
 571                 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_READJUST_POWER_STATE, NULL, NULL);
 572         } else if (adev->pm.funcs->set_mclk_od) {
 573                 adev->pm.funcs->set_mclk_od(adev, (uint32_t)value);
 574                 adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
 575                 amdgpu_pm_compute_clocks(adev);
 576         }
 577
 578 fail:
 579         return count;
 580 }
 581
 582 static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, amdgpu_get_dpm_state, amdgpu_set_dpm_state);
 583 static DEVICE_ATTR(power_dpm_force_performance_level, S_IRUGO | S_IWUSR,
 584                    amdgpu_get_dpm_forced_performance_level,
 585                    amdgpu_set_dpm_forced_performance_level);
 586 static DEVICE_ATTR(pp_num_states, S_IRUGO, amdgpu_get_pp_num_states, NULL);
 587 static DEVICE_ATTR(pp_cur_state, S_IRUGO, amdgpu_get_pp_cur_state, NULL);
 588 static DEVICE_ATTR(pp_force_state, S_IRUGO | S_IWUSR,
 589                 amdgpu_get_pp_force_state,
 590                 amdgpu_set_pp_force_state);
 591 static DEVICE_ATTR(pp_table, S_IRUGO | S_IWUSR,
 592                 amdgpu_get_pp_table,
 593                 amdgpu_set_pp_table);
 594 static DEVICE_ATTR(pp_dpm_sclk, S_IRUGO | S_IWUSR,
 595                 amdgpu_get_pp_dpm_sclk,
 596                 amdgpu_set_pp_dpm_sclk);
 597 static DEVICE_ATTR(pp_dpm_mclk, S_IRUGO | S_IWUSR,
 598                 amdgpu_get_pp_dpm_mclk,
 599                 amdgpu_set_pp_dpm_mclk);
 600 static DEVICE_ATTR(pp_dpm_pcie, S_IRUGO | S_IWUSR,
 601                 amdgpu_get_pp_dpm_pcie,
 602                 amdgpu_set_pp_dpm_pcie);
 603 static DEVICE_ATTR(pp_sclk_od, S_IRUGO | S_IWUSR,
 604                 amdgpu_get_pp_sclk_od,
 605                 amdgpu_set_pp_sclk_od);
 606 static DEVICE_ATTR(pp_mclk_od, S_IRUGO | S_IWUSR,
 607                 amdgpu_get_pp_mclk_od,
 608                 amdgpu_set_pp_mclk_od);
 609
 610 static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
 611                                       struct device_attribute *attr,
 612                                       char *buf)
 613 {
 614         struct amdgpu_device *adev = dev_get_drvdata(dev);
 615         struct drm_device *ddev = adev->ddev;
 616         int temp;
 617
 618         /* Can't get temperature when the card is off */
 619         if  ((adev->flags & AMD_IS_PX) &&
 620              (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
 621                 return -EINVAL;
 622
 623         if (!adev->pp_enabled && !adev->pm.funcs->get_temperature)
 624                 temp = 0;
 625         else
 626                 temp = amdgpu_dpm_get_temperature(adev);
 627
 628         return snprintf(buf, PAGE_SIZE, "%d\n", temp);
 629 }
 630
 631 static ssize_t amdgpu_hwmon_show_temp_thresh(struct device *dev,
 632                                              struct device_attribute *attr,
 633                                              char *buf)
 634 {
 635         struct amdgpu_device *adev = dev_get_drvdata(dev);
 636         int hyst = to_sensor_dev_attr(attr)->index;
 637         int temp;
 638
 639         if (hyst)
 640                 temp = adev->pm.dpm.thermal.min_temp;
 641         else
 642                 temp = adev->pm.dpm.thermal.max_temp;
 643
 644         return snprintf(buf, PAGE_SIZE, "%d\n", temp);
 645 }
 646
 647 static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
 648                                             struct device_attribute *attr,
 649                                             char *buf)
 650 {
 651         struct amdgpu_device *adev = dev_get_drvdata(dev);
 652         u32 pwm_mode = 0;
 653
 654         if (!adev->pp_enabled && !adev->pm.funcs->get_fan_control_mode)
 655                 return -EINVAL;
 656
 657         pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
 658
 659         /* never 0 (full-speed), fuse or smc-controlled always */
 660         return sprintf(buf, "%i\n", pwm_mode == FDO_PWM_MODE_STATIC ? 1 : 2);
 661 }
 662
 663 static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev,
 664                                             struct device_attribute *attr,
 665                                             const char *buf,
 666                                             size_t count)
 667 {
 668         struct amdgpu_device *adev = dev_get_drvdata(dev);
 669         int err;
 670         int value;
 671
 672         if (!adev->pp_enabled && !adev->pm.funcs->set_fan_control_mode)
 673                 return -EINVAL;
 674
 675         err = kstrtoint(buf, 10, &value);
 676         if (err)
 677                 return err;
 678
 679         switch (value) {
 680         case 1: /* manual, percent-based */
 681                 amdgpu_dpm_set_fan_control_mode(adev, FDO_PWM_MODE_STATIC);
 682                 break;
 683         default: /* disable */
 684                 amdgpu_dpm_set_fan_control_mode(adev, 0);
 685                 break;
 686         }
 687
 688         return count;
 689 }
 690
 691 static ssize_t amdgpu_hwmon_get_pwm1_min(struct device *dev,
 692                                          struct device_attribute *attr,
 693                                          char *buf)
 694 {
 695         return sprintf(buf, "%i\n", 0);
 696 }
 697
 698 static ssize_t amdgpu_hwmon_get_pwm1_max(struct device *dev,
 699                                          struct device_attribute *attr,
 700                                          char *buf)
 701 {
 702         return sprintf(buf, "%i\n", 255);
 703 }
 704
 705 static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
 706                                      struct device_attribute *attr,
 707                                      const char *buf, size_t count)
 708 {
 709         struct amdgpu_device *adev = dev_get_drvdata(dev);
 710         int err;
 711         u32 value;
 712
 713         err = kstrtou32(buf, 10, &value);
 714         if (err)
 715                 return err;
 716
 717         value = (value * 100) / 255;
 718
 719         err = amdgpu_dpm_set_fan_speed_percent(adev, value);
 720         if (err)
 721                 return err;
 722
 723         return count;
 724 }
 725
 726 static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
 727                                      struct device_attribute *attr,
 728                                      char *buf)
 729 {
 730         struct amdgpu_device *adev = dev_get_drvdata(dev);
 731         int err;
 732         u32 speed;
 733
 734         err = amdgpu_dpm_get_fan_speed_percent(adev, &speed);
 735         if (err)
 736                 return err;
 737
 738         speed = (speed * 255) / 100;
 739
 740         return sprintf(buf, "%i\n", speed);
 741 }
 742
 743 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, 0);
 744 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 0);
 745 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 1);
 746 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1, amdgpu_hwmon_set_pwm1, 0);
 747 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1_enable, amdgpu_hwmon_set_pwm1_enable, 0);
 748 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, amdgpu_hwmon_get_pwm1_min, NULL, 0);
 749 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, amdgpu_hwmon_get_pwm1_max, NULL, 0);
 750
 751 static struct attribute *hwmon_attributes[] = {
 752         &sensor_dev_attr_temp1_input.dev_attr.attr,
 753         &sensor_dev_attr_temp1_crit.dev_attr.attr,
 754         &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
 755         &sensor_dev_attr_pwm1.dev_attr.attr,
 756         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
 757         &sensor_dev_attr_pwm1_min.dev_attr.attr,
 758         &sensor_dev_attr_pwm1_max.dev_attr.attr,
 759         NULL
 760 };
 761
 762 static umode_t hwmon_attributes_visible(struct kobject *kobj,
 763                                         struct attribute *attr, int index)
 764 {
 765         struct device *dev = kobj_to_dev(kobj);
 766         struct amdgpu_device *adev = dev_get_drvdata(dev);
 767         umode_t effective_mode = attr->mode;
 768
 769         /* Skip limit attributes if DPM is not enabled */
 770         if (!adev->pm.dpm_enabled &&
 771             (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
 772              attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
 773              attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
 774              attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
 775              attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
 776              attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 777                 return 0;
 778
 779         if (adev->pp_enabled)
 780                 return effective_mode;
 781
 782         /* Skip fan attributes if fan is not present */
 783         if (adev->pm.no_fan &&
 784             (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
 785              attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
 786              attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
 787              attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 788                 return 0;
 789
 790         /* mask fan attributes if we have no bindings for this asic to expose */
 791         if ((!adev->pm.funcs->get_fan_speed_percent &&
 792              attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */
 793             (!adev->pm.funcs->get_fan_control_mode &&
 794              attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */
 795                 effective_mode &= ~S_IRUGO;
 796
 797         if ((!adev->pm.funcs->set_fan_speed_percent &&
 798              attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */
 799             (!adev->pm.funcs->set_fan_control_mode &&
 800              attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */
 801                 effective_mode &= ~S_IWUSR;
 802
 803         /* hide max/min values if we can't both query and manage the fan */
 804         if ((!adev->pm.funcs->set_fan_speed_percent &&
 805              !adev->pm.funcs->get_fan_speed_percent) &&
 806             (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
 807              attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 808                 return 0;
 809
 810         return effective_mode;
 811 }
 812
 813 static const struct attribute_group hwmon_attrgroup = {
 814         .attrs = hwmon_attributes,
 815         .is_visible = hwmon_attributes_visible,
 816 };
 817
 818 static const struct attribute_group *hwmon_groups[] = {
 819         &hwmon_attrgroup,
 820         NULL
 821 };
 822
 823 void amdgpu_dpm_thermal_work_handler(struct work_struct *work)
 824 {
 825         struct amdgpu_device *adev =
 826                 container_of(work, struct amdgpu_device,
 827                              pm.dpm.thermal.work);
 828         /* switch to the thermal state */
 829         enum amd_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL;
 830
 831         if (!adev->pm.dpm_enabled)
 832                 return;
 833
 834         if (adev->pm.funcs->get_temperature) {
 835                 int temp = amdgpu_dpm_get_temperature(adev);
 836
 837                 if (temp < adev->pm.dpm.thermal.min_temp)
 838                         /* switch back the user state */
 839                         dpm_state = adev->pm.dpm.user_state;
 840         } else {
 841                 if (adev->pm.dpm.thermal.high_to_low)
 842                         /* switch back the user state */
 843                         dpm_state = adev->pm.dpm.user_state;
 844         }
 845         mutex_lock(&adev->pm.mutex);
 846         if (dpm_state == POWER_STATE_TYPE_INTERNAL_THERMAL)
 847                 adev->pm.dpm.thermal_active = true;
 848         else
 849                 adev->pm.dpm.thermal_active = false;
 850         adev->pm.dpm.state = dpm_state;
 851         mutex_unlock(&adev->pm.mutex);
 852
 853         amdgpu_pm_compute_clocks(adev);
 854 }
 855
 856 static struct amdgpu_ps *amdgpu_dpm_pick_power_state(struct amdgpu_device *adev,
 857                                                      enum amd_pm_state_type dpm_state)
 858 {
 859         int i;
 860         struct amdgpu_ps *ps;
 861         u32 ui_class;
 862         bool single_display = (adev->pm.dpm.new_active_crtc_count < 2) ?
 863                 true : false;
 864
 865         /* check if the vblank period is too short to adjust the mclk */
 866         if (single_display && adev->pm.funcs->vblank_too_short) {
 867                 if (amdgpu_dpm_vblank_too_short(adev))
 868                         single_display = false;
 869         }
 870
 871         /* certain older asics have a separare 3D performance state,
 872          * so try that first if the user selected performance
 873          */
 874         if (dpm_state == POWER_STATE_TYPE_PERFORMANCE)
 875                 dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF;
 876         /* balanced states don't exist at the moment */
 877         if (dpm_state == POWER_STATE_TYPE_BALANCED)
 878                 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
 879
 880 restart_search:
 881         /* Pick the best power state based on current conditions */
 882         for (i = 0; i < adev->pm.dpm.num_ps; i++) {
 883                 ps = &adev->pm.dpm.ps[i];
 884                 ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK;
 885                 switch (dpm_state) {
 886                 /* user states */
 887                 case POWER_STATE_TYPE_BATTERY:
 888                         if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) {
 889                                 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
 890                                         if (single_display)
 891                                                 return ps;
 892                                 } else
 893                                         return ps;
 894                         }
 895                         break;
 896                 case POWER_STATE_TYPE_BALANCED:
 897                         if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BALANCED) {
 898                                 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
 899                                         if (single_display)
 900                                                 return ps;
 901                                 } else
 902                                         return ps;
 903                         }
 904                         break;
 905                 case POWER_STATE_TYPE_PERFORMANCE:
 906                         if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) {
 907                                 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
 908                                         if (single_display)
 909                                                 return ps;
 910                                 } else
 911                                         return ps;
 912                         }
 913                         break;
 914                 /* internal states */
 915                 case POWER_STATE_TYPE_INTERNAL_UVD:
 916                         if (adev->pm.dpm.uvd_ps)
 917                                 return adev->pm.dpm.uvd_ps;
 918                         else
 919                                 break;
 920                 case POWER_STATE_TYPE_INTERNAL_UVD_SD:
 921                         if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
 922                                 return ps;
 923                         break;
 924                 case POWER_STATE_TYPE_INTERNAL_UVD_HD:
 925                         if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
 926                                 return ps;
 927                         break;
 928                 case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
 929                         if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
 930                                 return ps;
 931                         break;
 932                 case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
 933                         if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
 934                                 return ps;
 935                         break;
 936                 case POWER_STATE_TYPE_INTERNAL_BOOT:
 937                         return adev->pm.dpm.boot_ps;
 938                 case POWER_STATE_TYPE_INTERNAL_THERMAL:
 939                         if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
 940                                 return ps;
 941                         break;
 942                 case POWER_STATE_TYPE_INTERNAL_ACPI:
 943                         if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI)
 944                                 return ps;
 945                         break;
 946                 case POWER_STATE_TYPE_INTERNAL_ULV:
 947                         if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV)
 948                                 return ps;
 949                         break;
 950                 case POWER_STATE_TYPE_INTERNAL_3DPERF:
 951                         if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
 952                                 return ps;
 953                         break;
 954                 default:
 955                         break;
 956                 }
 957         }
 958         /* use a fallback state if we didn't match */
 959         switch (dpm_state) {
 960         case POWER_STATE_TYPE_INTERNAL_UVD_SD:
 961                 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
 962                 goto restart_search;
 963         case POWER_STATE_TYPE_INTERNAL_UVD_HD:
 964         case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
 965         case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
 966                 if (adev->pm.dpm.uvd_ps) {
 967                         return adev->pm.dpm.uvd_ps;
 968                 } else {
 969                         dpm_state = POWER_STATE_TYPE_PERFORMANCE;
 970                         goto restart_search;
 971                 }
 972         case POWER_STATE_TYPE_INTERNAL_THERMAL:
 973                 dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI;
 974                 goto restart_search;
 975         case POWER_STATE_TYPE_INTERNAL_ACPI:
 976                 dpm_state = POWER_STATE_TYPE_BATTERY;
 977                 goto restart_search;
 978         case POWER_STATE_TYPE_BATTERY:
 979         case POWER_STATE_TYPE_BALANCED:
 980         case POWER_STATE_TYPE_INTERNAL_3DPERF:
 981                 dpm_state = POWER_STATE_TYPE_PERFORMANCE;
 982                 goto restart_search;
 983         default:
 984                 break;
 985         }
 986
 987         return NULL;
 988 }
 989
 990 static void amdgpu_dpm_change_power_state_locked(struct amdgpu_device *adev)
 991 {
 992         int i;
 993         struct amdgpu_ps *ps;
 994         enum amd_pm_state_type dpm_state;
 995         int ret;
 996
 997         /* if dpm init failed */
 998         if (!adev->pm.dpm_enabled)
 999                 return;
1000
1001         if (adev->pm.dpm.user_state != adev->pm.dpm.state) {
1002                 /* add other state override checks here */
1003                 if ((!adev->pm.dpm.thermal_active) &&
1004                     (!adev->pm.dpm.uvd_active))
1005                         adev->pm.dpm.state = adev->pm.dpm.user_state;
1006         }
1007         dpm_state = adev->pm.dpm.state;
1008
1009         ps = amdgpu_dpm_pick_power_state(adev, dpm_state);
1010         if (ps)
1011                 adev->pm.dpm.requested_ps = ps;
1012         else
1013                 return;
1014
1015         /* no need to reprogram if nothing changed unless we are on BTC+ */
1016         if (adev->pm.dpm.current_ps == adev->pm.dpm.requested_ps) {
1017                 /* vce just modifies an existing state so force a change */
1018                 if (ps->vce_active != adev->pm.dpm.vce_active)
1019                         goto force;
1020                 if (adev->flags & AMD_IS_APU) {
1021                         /* for APUs if the num crtcs changed but state is the same,
1022                          * all we need to do is update the display configuration.
1023                          */
1024                         if (adev->pm.dpm.new_active_crtcs != adev->pm.dpm.current_active_crtcs) {
1025                                 /* update display watermarks based on new power state */
1026                                 amdgpu_display_bandwidth_update(adev);
1027                                 /* update displays */
1028                                 amdgpu_dpm_display_configuration_changed(adev);
1029                                 adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs;
1030                                 adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count;
1031                         }
1032                         return;
1033                 } else {
1034                         /* for BTC+ if the num crtcs hasn't changed and state is the same,
1035                          * nothing to do, if the num crtcs is > 1 and state is the same,
1036                          * update display configuration.
1037                          */
1038                         if (adev->pm.dpm.new_active_crtcs ==
1039                             adev->pm.dpm.current_active_crtcs) {
1040                                 return;
1041                         } else if ((adev->pm.dpm.current_active_crtc_count > 1) &&
1042                                    (adev->pm.dpm.new_active_crtc_count > 1)) {
1043                                 /* update display watermarks based on new power state */
1044                                 amdgpu_display_bandwidth_update(adev);
1045                                 /* update displays */
1046                                 amdgpu_dpm_display_configuration_changed(adev);
1047                                 adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs;
1048                                 adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count;
1049                                 return;
1050                         }
1051                 }
1052         }
1053
1054 force:
1055         if (amdgpu_dpm == 1) {
1056                 printk("switching from power state:\n");
1057                 amdgpu_dpm_print_power_state(adev, adev->pm.dpm.current_ps);
1058                 printk("switching to power state:\n");
1059                 amdgpu_dpm_print_power_state(adev, adev->pm.dpm.requested_ps);
1060         }
1061
1062         /* update whether vce is active */
1063         ps->vce_active = adev->pm.dpm.vce_active;
1064
1065         ret = amdgpu_dpm_pre_set_power_state(adev);
1066         if (ret)
1067                 return;
1068
1069         /* update display watermarks based on new power state */
1070         amdgpu_display_bandwidth_update(adev);
1071
1072         /* wait for the rings to drain */
1073         for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
1074                 struct amdgpu_ring *ring = adev->rings[i];
1075                 if (ring && ring->ready)
1076                         amdgpu_fence_wait_empty(ring);
1077         }
1078
1079         /* program the new power state */
1080         amdgpu_dpm_set_power_state(adev);
1081
1082         /* update current power state */
1083         adev->pm.dpm.current_ps = adev->pm.dpm.requested_ps;
1084
1085         amdgpu_dpm_post_set_power_state(adev);
1086
1087         /* update displays */
1088         amdgpu_dpm_display_configuration_changed(adev);
1089
1090         adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs;
1091         adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count;
1092
1093         if (adev->pm.funcs->force_performance_level) {
1094                 if (adev->pm.dpm.thermal_active) {
1095                         enum amdgpu_dpm_forced_level level = adev->pm.dpm.forced_level;
1096                         /* force low perf level for thermal */
1097                         amdgpu_dpm_force_performance_level(adev, AMDGPU_DPM_FORCED_LEVEL_LOW);
1098                         /* save the user's level */
1099                         adev->pm.dpm.forced_level = level;
1100                 } else {
1101                         /* otherwise, user selected level */
1102                         amdgpu_dpm_force_performance_level(adev, adev->pm.dpm.forced_level);
1103                 }
1104         }
1105 }
1106
1107 void amdgpu_dpm_enable_uvd(struct amdgpu_device *adev, bool enable)
1108 {
1109         if (adev->pp_enabled)
1110                 amdgpu_dpm_powergate_uvd(adev, !enable);
1111         else {
1112                 if (adev->pm.funcs->powergate_uvd) {
1113                         mutex_lock(&adev->pm.mutex);
1114                         /* enable/disable UVD */
1115                         amdgpu_dpm_powergate_uvd(adev, !enable);
1116                         mutex_unlock(&adev->pm.mutex);
1117                 } else {
1118                         if (enable) {
1119                                 mutex_lock(&adev->pm.mutex);
1120                                 adev->pm.dpm.uvd_active = true;
1121                                 adev->pm.dpm.state = POWER_STATE_TYPE_INTERNAL_UVD;
1122                                 mutex_unlock(&adev->pm.mutex);
1123                         } else {
1124                                 mutex_lock(&adev->pm.mutex);
1125                                 adev->pm.dpm.uvd_active = false;
1126                                 mutex_unlock(&adev->pm.mutex);
1127                         }
1128                         amdgpu_pm_compute_clocks(adev);
1129                 }
1130
1131         }
1132 }
1133
1134 void amdgpu_dpm_enable_vce(struct amdgpu_device *adev, bool enable)
1135 {
1136         if (adev->pp_enabled)
1137                 amdgpu_dpm_powergate_vce(adev, !enable);
1138         else {
1139                 if (adev->pm.funcs->powergate_vce) {
1140                         mutex_lock(&adev->pm.mutex);
1141                         amdgpu_dpm_powergate_vce(adev, !enable);
1142                         mutex_unlock(&adev->pm.mutex);
1143                 } else {
1144                         if (enable) {
1145                                 mutex_lock(&adev->pm.mutex);
1146                                 adev->pm.dpm.vce_active = true;
1147                                 /* XXX select vce level based on ring/task */
1148                                 adev->pm.dpm.vce_level = AMDGPU_VCE_LEVEL_AC_ALL;
1149                                 mutex_unlock(&adev->pm.mutex);
1150                         } else {
1151                                 mutex_lock(&adev->pm.mutex);
1152                                 adev->pm.dpm.vce_active = false;
1153                                 mutex_unlock(&adev->pm.mutex);
1154                         }
1155                         amdgpu_pm_compute_clocks(adev);
1156                 }
1157         }
1158 }
1159
1160 void amdgpu_pm_print_power_states(struct amdgpu_device *adev)
1161 {
1162         int i;
1163
1164         if (adev->pp_enabled)
1165                 /* TO DO */
1166                 return;
1167
1168         for (i = 0; i < adev->pm.dpm.num_ps; i++)
1169                 amdgpu_dpm_print_power_state(adev, &adev->pm.dpm.ps[i]);
1170
1171 }
1172
1173 int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
1174 {
1175         int ret;
1176
1177         if (adev->pm.sysfs_initialized)
1178                 return 0;
1179
1180         if (!adev->pp_enabled) {
1181                 if (adev->pm.funcs->get_temperature == NULL)
1182                         return 0;
1183         }
1184
1185         adev->pm.int_hwmon_dev = hwmon_device_register_with_groups(adev->dev,
1186                                                                    DRIVER_NAME, adev,
1187                                                                    hwmon_groups);
1188         if (IS_ERR(adev->pm.int_hwmon_dev)) {
1189                 ret = PTR_ERR(adev->pm.int_hwmon_dev);
1190                 dev_err(adev->dev,
1191                         "Unable to register hwmon device: %d\n", ret);
1192                 return ret;
1193         }
1194
1195         ret = device_create_file(adev->dev, &dev_attr_power_dpm_state);
1196         if (ret) {
1197                 DRM_ERROR("failed to create device file for dpm state\n");
1198                 return ret;
1199         }
1200         ret = device_create_file(adev->dev, &dev_attr_power_dpm_force_performance_level);
1201         if (ret) {
1202                 DRM_ERROR("failed to create device file for dpm state\n");
1203                 return ret;
1204         }
1205
1206         if (adev->pp_enabled) {
1207                 ret = device_create_file(adev->dev, &dev_attr_pp_num_states);
1208                 if (ret) {
1209                         DRM_ERROR("failed to create device file pp_num_states\n");
1210                         return ret;
1211                 }
1212                 ret = device_create_file(adev->dev, &dev_attr_pp_cur_state);
1213                 if (ret) {
1214                         DRM_ERROR("failed to create device file pp_cur_state\n");
1215                         return ret;
1216                 }
1217                 ret = device_create_file(adev->dev, &dev_attr_pp_force_state);
1218                 if (ret) {
1219                         DRM_ERROR("failed to create device file pp_force_state\n");
1220                         return ret;
1221                 }
1222                 ret = device_create_file(adev->dev, &dev_attr_pp_table);
1223                 if (ret) {
1224                         DRM_ERROR("failed to create device file pp_table\n");
1225                         return ret;
1226                 }
1227         }
1228
1229         ret = device_create_file(adev->dev, &dev_attr_pp_dpm_sclk);
1230         if (ret) {
1231                 DRM_ERROR("failed to create device file pp_dpm_sclk\n");
1232                 return ret;
1233         }
1234         ret = device_create_file(adev->dev, &dev_attr_pp_dpm_mclk);
1235         if (ret) {
1236                 DRM_ERROR("failed to create device file pp_dpm_mclk\n");
1237                 return ret;
1238         }
1239         ret = device_create_file(adev->dev, &dev_attr_pp_dpm_pcie);
1240         if (ret) {
1241                 DRM_ERROR("failed to create device file pp_dpm_pcie\n");
1242                 return ret;
1243         }
1244         ret = device_create_file(adev->dev, &dev_attr_pp_sclk_od);
1245         if (ret) {
1246                 DRM_ERROR("failed to create device file pp_sclk_od\n");
1247                 return ret;
1248         }
1249         ret = device_create_file(adev->dev, &dev_attr_pp_mclk_od);
1250         if (ret) {
1251                 DRM_ERROR("failed to create device file pp_mclk_od\n");
1252                 return ret;
1253         }
1254
1255         ret = amdgpu_debugfs_pm_init(adev);
1256         if (ret) {
1257                 DRM_ERROR("Failed to register debugfs file for dpm!\n");
1258                 return ret;
1259         }
1260
1261         adev->pm.sysfs_initialized = true;
1262
1263         return 0;
1264 }
1265
1266 void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev)
1267 {
1268         if (adev->pm.int_hwmon_dev)
1269                 hwmon_device_unregister(adev->pm.int_hwmon_dev);
1270         device_remove_file(adev->dev, &dev_attr_power_dpm_state);
1271         device_remove_file(adev->dev, &dev_attr_power_dpm_force_performance_level);
1272         if (adev->pp_enabled) {
1273                 device_remove_file(adev->dev, &dev_attr_pp_num_states);
1274                 device_remove_file(adev->dev, &dev_attr_pp_cur_state);
1275                 device_remove_file(adev->dev, &dev_attr_pp_force_state);
1276                 device_remove_file(adev->dev, &dev_attr_pp_table);
1277         }
1278         device_remove_file(adev->dev, &dev_attr_pp_dpm_sclk);
1279         device_remove_file(adev->dev, &dev_attr_pp_dpm_mclk);
1280         device_remove_file(adev->dev, &dev_attr_pp_dpm_pcie);
1281         device_remove_file(adev->dev, &dev_attr_pp_sclk_od);
1282         device_remove_file(adev->dev, &dev_attr_pp_mclk_od);
1283 }
1284
1285 void amdgpu_pm_compute_clocks(struct amdgpu_device *adev)
1286 {
1287         struct drm_device *ddev = adev->ddev;
1288         struct drm_crtc *crtc;
1289         struct amdgpu_crtc *amdgpu_crtc;
1290
1291         if (!adev->pm.dpm_enabled)
1292                 return;
1293
1294         if (adev->pp_enabled) {
1295                 int i = 0;
1296
1297                 amdgpu_display_bandwidth_update(adev);
1298                 for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
1299                         struct amdgpu_ring *ring = adev->rings[i];
1300                         if (ring && ring->ready)
1301                                 amdgpu_fence_wait_empty(ring);
1302                 }
1303
1304                 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_DISPLAY_CONFIG_CHANGE, NULL, NULL);
1305         } else {
1306                 mutex_lock(&adev->pm.mutex);
1307                 adev->pm.dpm.new_active_crtcs = 0;
1308                 adev->pm.dpm.new_active_crtc_count = 0;
1309                 if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
1310                         list_for_each_entry(crtc,
1311                                             &ddev->mode_config.crtc_list, head) {
1312                                 amdgpu_crtc = to_amdgpu_crtc(crtc);
1313                                 if (crtc->enabled) {
1314                                         adev->pm.dpm.new_active_crtcs |= (1 << amdgpu_crtc->crtc_id);
1315                                         adev->pm.dpm.new_active_crtc_count++;
1316                                 }
1317                         }
1318                 }
1319                 /* update battery/ac status */
1320                 if (power_supply_is_system_supplied() > 0)
1321                         adev->pm.dpm.ac_power = true;
1322                 else
1323                         adev->pm.dpm.ac_power = false;
1324
1325                 amdgpu_dpm_change_power_state_locked(adev);
1326
1327                 mutex_unlock(&adev->pm.mutex);
1328         }
1329 }
1330
1331 /*
1332  * Debugfs info
1333  */
1334 #if defined(CONFIG_DEBUG_FS)
1335
1336 static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
1337 {
1338         struct drm_info_node *node = (struct drm_info_node *) m->private;
1339         struct drm_device *dev = node->minor->dev;
1340         struct amdgpu_device *adev = dev->dev_private;
1341         struct drm_device *ddev = adev->ddev;
1342
1343         if (!adev->pm.dpm_enabled) {
1344                 seq_printf(m, "dpm not enabled\n");
1345                 return 0;
1346         }
1347         if  ((adev->flags & AMD_IS_PX) &&
1348              (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) {
1349                 seq_printf(m, "PX asic powered off\n");
1350         } else if (adev->pp_enabled) {
1351                 amdgpu_dpm_debugfs_print_current_performance_level(adev, m);
1352         } else {
1353                 mutex_lock(&adev->pm.mutex);
1354                 if (adev->pm.funcs->debugfs_print_current_performance_level)
1355                         amdgpu_dpm_debugfs_print_current_performance_level(adev, m);
1356                 else
1357                         seq_printf(m, "Debugfs support not implemented for this asic\n");
1358                 mutex_unlock(&adev->pm.mutex);
1359         }
1360
1361         return 0;
1362 }
1363
1364 static const struct drm_info_list amdgpu_pm_info_list[] = {
1365         {"amdgpu_pm_info", amdgpu_debugfs_pm_info, 0, NULL},
1366 };
1367 #endif
1368
1369 static int amdgpu_debugfs_pm_init(struct amdgpu_device *adev)
1370 {
1371 #if defined(CONFIG_DEBUG_FS)
1372         return amdgpu_debugfs_add_files(adev, amdgpu_pm_info_list, ARRAY_SIZE(amdgpu_pm_info_list));
1373 #else
1374         return 0;
1375 #endif
1376 }