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

   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 <[email protected]>
  23  *          Alex Deucher <[email protected]>
  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 static const struct cg_flag_name clocks[] = {
  39         {AMD_CG_SUPPORT_GFX_FGCG, "Graphics Fine Grain Clock Gating"},
  40         {AMD_CG_SUPPORT_GFX_MGCG, "Graphics Medium Grain Clock Gating"},
  41         {AMD_CG_SUPPORT_GFX_MGLS, "Graphics Medium Grain memory Light Sleep"},
  42         {AMD_CG_SUPPORT_GFX_CGCG, "Graphics Coarse Grain Clock Gating"},
  43         {AMD_CG_SUPPORT_GFX_CGLS, "Graphics Coarse Grain memory Light Sleep"},
  44         {AMD_CG_SUPPORT_GFX_CGTS, "Graphics Coarse Grain Tree Shader Clock Gating"},
  45         {AMD_CG_SUPPORT_GFX_CGTS_LS, "Graphics Coarse Grain Tree Shader Light Sleep"},
  46         {AMD_CG_SUPPORT_GFX_CP_LS, "Graphics Command Processor Light Sleep"},
  47         {AMD_CG_SUPPORT_GFX_RLC_LS, "Graphics Run List Controller Light Sleep"},
  48         {AMD_CG_SUPPORT_GFX_3D_CGCG, "Graphics 3D Coarse Grain Clock Gating"},
  49         {AMD_CG_SUPPORT_GFX_3D_CGLS, "Graphics 3D Coarse Grain memory Light Sleep"},
  50         {AMD_CG_SUPPORT_MC_LS, "Memory Controller Light Sleep"},
  51         {AMD_CG_SUPPORT_MC_MGCG, "Memory Controller Medium Grain Clock Gating"},
  52         {AMD_CG_SUPPORT_SDMA_LS, "System Direct Memory Access Light Sleep"},
  53         {AMD_CG_SUPPORT_SDMA_MGCG, "System Direct Memory Access Medium Grain Clock Gating"},
  54         {AMD_CG_SUPPORT_BIF_MGCG, "Bus Interface Medium Grain Clock Gating"},
  55         {AMD_CG_SUPPORT_BIF_LS, "Bus Interface Light Sleep"},
  56         {AMD_CG_SUPPORT_UVD_MGCG, "Unified Video Decoder Medium Grain Clock Gating"},
  57         {AMD_CG_SUPPORT_VCE_MGCG, "Video Compression Engine Medium Grain Clock Gating"},
  58         {AMD_CG_SUPPORT_HDP_LS, "Host Data Path Light Sleep"},
  59         {AMD_CG_SUPPORT_HDP_MGCG, "Host Data Path Medium Grain Clock Gating"},
  60         {AMD_CG_SUPPORT_DRM_MGCG, "Digital Right Management Medium Grain Clock Gating"},
  61         {AMD_CG_SUPPORT_DRM_LS, "Digital Right Management Light Sleep"},
  62         {AMD_CG_SUPPORT_ROM_MGCG, "Rom Medium Grain Clock Gating"},
  63         {AMD_CG_SUPPORT_DF_MGCG, "Data Fabric Medium Grain Clock Gating"},
  64         {AMD_CG_SUPPORT_VCN_MGCG, "VCN Medium Grain Clock Gating"},
  65         {AMD_CG_SUPPORT_HDP_DS, "Host Data Path Deep Sleep"},
  66         {AMD_CG_SUPPORT_HDP_SD, "Host Data Path Shutdown"},
  67         {AMD_CG_SUPPORT_IH_CG, "Interrupt Handler Clock Gating"},
  68         {AMD_CG_SUPPORT_JPEG_MGCG, "JPEG Medium Grain Clock Gating"},
  69         {AMD_CG_SUPPORT_REPEATER_FGCG, "Repeater Fine Grain Clock Gating"},
  70         {AMD_CG_SUPPORT_GFX_PERF_CLK, "Perfmon Clock Gating"},
  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
  76 static 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 const 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 };
  95
  96 /**
  97  * DOC: power_dpm_state
  98  *
  99  * The power_dpm_state file is a legacy interface and is only provided for
 100  * backwards compatibility. The amdgpu driver provides a sysfs API for adjusting
 101  * certain power related parameters.  The file power_dpm_state is used for this.
 102  * It accepts the following arguments:
 103  *
 104  * - battery
 105  *
 106  * - balanced
 107  *
 108  * - performance
 109  *
 110  * battery
 111  *
 112  * On older GPUs, the vbios provided a special power state for battery
 113  * operation.  Selecting battery switched to this state.  This is no
 114  * longer provided on newer GPUs so the option does nothing in that case.
 115  *
 116  * balanced
 117  *
 118  * On older GPUs, the vbios provided a special power state for balanced
 119  * operation.  Selecting balanced switched to this state.  This is no
 120  * longer provided on newer GPUs so the option does nothing in that case.
 121  *
 122  * performance
 123  *
 124  * On older GPUs, the vbios provided a special power state for performance
 125  * operation.  Selecting performance switched to this state.  This is no
 126  * longer provided on newer GPUs so the option does nothing in that case.
 127  *
 128  */
 129
 130 static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
 131                                           struct device_attribute *attr,
 132                                           char *buf)
 133 {
 134         struct drm_device *ddev = dev_get_drvdata(dev);
 135         struct amdgpu_device *adev = drm_to_adev(ddev);
 136         enum amd_pm_state_type pm;
 137         int ret;
 138
 139         if (amdgpu_in_reset(adev))
 140                 return -EPERM;
 141         if (adev->in_suspend && !adev->in_runpm)
 142                 return -EPERM;
 143
 144         ret = pm_runtime_get_sync(ddev->dev);
 145         if (ret < 0) {
 146                 pm_runtime_put_autosuspend(ddev->dev);
 147                 return ret;
 148         }
 149
 150         amdgpu_dpm_get_current_power_state(adev, &pm);
 151
 152         pm_runtime_mark_last_busy(ddev->dev);
 153         pm_runtime_put_autosuspend(ddev->dev);
 154
 155         return sysfs_emit(buf, "%s\n",
 156                           (pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
 157                           (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
 158 }
 159
 160 static ssize_t amdgpu_set_power_dpm_state(struct device *dev,
 161                                           struct device_attribute *attr,
 162                                           const char *buf,
 163                                           size_t count)
 164 {
 165         struct drm_device *ddev = dev_get_drvdata(dev);
 166         struct amdgpu_device *adev = drm_to_adev(ddev);
 167         enum amd_pm_state_type  state;
 168         int ret;
 169
 170         if (amdgpu_in_reset(adev))
 171                 return -EPERM;
 172         if (adev->in_suspend && !adev->in_runpm)
 173                 return -EPERM;
 174
 175         if (strncmp("battery", buf, strlen("battery")) == 0)
 176                 state = POWER_STATE_TYPE_BATTERY;
 177         else if (strncmp("balanced", buf, strlen("balanced")) == 0)
 178                 state = POWER_STATE_TYPE_BALANCED;
 179         else if (strncmp("performance", buf, strlen("performance")) == 0)
 180                 state = POWER_STATE_TYPE_PERFORMANCE;
 181         else
 182                 return -EINVAL;
 183
 184         ret = pm_runtime_get_sync(ddev->dev);
 185         if (ret < 0) {
 186                 pm_runtime_put_autosuspend(ddev->dev);
 187                 return ret;
 188         }
 189
 190         amdgpu_dpm_set_power_state(adev, state);
 191
 192         pm_runtime_mark_last_busy(ddev->dev);
 193         pm_runtime_put_autosuspend(ddev->dev);
 194
 195         return count;
 196 }
 197
 198
 199 /**
 200  * DOC: power_dpm_force_performance_level
 201  *
 202  * The amdgpu driver provides a sysfs API for adjusting certain power
 203  * related parameters.  The file power_dpm_force_performance_level is
 204  * used for this.  It accepts the following arguments:
 205  *
 206  * - auto
 207  *
 208  * - low
 209  *
 210  * - high
 211  *
 212  * - manual
 213  *
 214  * - profile_standard
 215  *
 216  * - profile_min_sclk
 217  *
 218  * - profile_min_mclk
 219  *
 220  * - profile_peak
 221  *
 222  * auto
 223  *
 224  * When auto is selected, the driver will attempt to dynamically select
 225  * the optimal power profile for current conditions in the driver.
 226  *
 227  * low
 228  *
 229  * When low is selected, the clocks are forced to the lowest power state.
 230  *
 231  * high
 232  *
 233  * When high is selected, the clocks are forced to the highest power state.
 234  *
 235  * manual
 236  *
 237  * When manual is selected, the user can manually adjust which power states
 238  * are enabled for each clock domain via the sysfs pp_dpm_mclk, pp_dpm_sclk,
 239  * and pp_dpm_pcie files and adjust the power state transition heuristics
 240  * via the pp_power_profile_mode sysfs file.
 241  *
 242  * profile_standard
 243  * profile_min_sclk
 244  * profile_min_mclk
 245  * profile_peak
 246  *
 247  * When the profiling modes are selected, clock and power gating are
 248  * disabled and the clocks are set for different profiling cases. This
 249  * mode is recommended for profiling specific work loads where you do
 250  * not want clock or power gating for clock fluctuation to interfere
 251  * with your results. profile_standard sets the clocks to a fixed clock
 252  * level which varies from asic to asic.  profile_min_sclk forces the sclk
 253  * to the lowest level.  profile_min_mclk forces the mclk to the lowest level.
 254  * profile_peak sets all clocks (mclk, sclk, pcie) to the highest levels.
 255  *
 256  */
 257
 258 static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
 259                                                             struct device_attribute *attr,
 260                                                             char *buf)
 261 {
 262         struct drm_device *ddev = dev_get_drvdata(dev);
 263         struct amdgpu_device *adev = drm_to_adev(ddev);
 264         enum amd_dpm_forced_level level = 0xff;
 265         int ret;
 266
 267         if (amdgpu_in_reset(adev))
 268                 return -EPERM;
 269         if (adev->in_suspend && !adev->in_runpm)
 270                 return -EPERM;
 271
 272         ret = pm_runtime_get_sync(ddev->dev);
 273         if (ret < 0) {
 274                 pm_runtime_put_autosuspend(ddev->dev);
 275                 return ret;
 276         }
 277
 278         level = amdgpu_dpm_get_performance_level(adev);
 279
 280         pm_runtime_mark_last_busy(ddev->dev);
 281         pm_runtime_put_autosuspend(ddev->dev);
 282
 283         return sysfs_emit(buf, "%s\n",
 284                           (level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
 285                           (level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" :
 286                           (level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" :
 287                           (level == AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" :
 288                           (level == AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD) ? "profile_standard" :
 289                           (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) ? "profile_min_sclk" :
 290                           (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) ? "profile_min_mclk" :
 291                           (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) ? "profile_peak" :
 292                           (level == AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM) ? "perf_determinism" :
 293                           "unknown");
 294 }
 295
 296 static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
 297                                                             struct device_attribute *attr,
 298                                                             const char *buf,
 299                                                             size_t count)
 300 {
 301         struct drm_device *ddev = dev_get_drvdata(dev);
 302         struct amdgpu_device *adev = drm_to_adev(ddev);
 303         enum amd_dpm_forced_level level;
 304         int ret = 0;
 305
 306         if (amdgpu_in_reset(adev))
 307                 return -EPERM;
 308         if (adev->in_suspend && !adev->in_runpm)
 309                 return -EPERM;
 310
 311         if (strncmp("low", buf, strlen("low")) == 0) {
 312                 level = AMD_DPM_FORCED_LEVEL_LOW;
 313         } else if (strncmp("high", buf, strlen("high")) == 0) {
 314                 level = AMD_DPM_FORCED_LEVEL_HIGH;
 315         } else if (strncmp("auto", buf, strlen("auto")) == 0) {
 316                 level = AMD_DPM_FORCED_LEVEL_AUTO;
 317         } else if (strncmp("manual", buf, strlen("manual")) == 0) {
 318                 level = AMD_DPM_FORCED_LEVEL_MANUAL;
 319         } else if (strncmp("profile_exit", buf, strlen("profile_exit")) == 0) {
 320                 level = AMD_DPM_FORCED_LEVEL_PROFILE_EXIT;
 321         } else if (strncmp("profile_standard", buf, strlen("profile_standard")) == 0) {
 322                 level = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD;
 323         } else if (strncmp("profile_min_sclk", buf, strlen("profile_min_sclk")) == 0) {
 324                 level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK;
 325         } else if (strncmp("profile_min_mclk", buf, strlen("profile_min_mclk")) == 0) {
 326                 level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK;
 327         } else if (strncmp("profile_peak", buf, strlen("profile_peak")) == 0) {
 328                 level = AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
 329         } else if (strncmp("perf_determinism", buf, strlen("perf_determinism")) == 0) {
 330                 level = AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM;
 331         }  else {
 332                 return -EINVAL;
 333         }
 334
 335         ret = pm_runtime_get_sync(ddev->dev);
 336         if (ret < 0) {
 337                 pm_runtime_put_autosuspend(ddev->dev);
 338                 return ret;
 339         }
 340
 341         mutex_lock(&adev->pm.stable_pstate_ctx_lock);
 342         if (amdgpu_dpm_force_performance_level(adev, level)) {
 343                 pm_runtime_mark_last_busy(ddev->dev);
 344                 pm_runtime_put_autosuspend(ddev->dev);
 345                 mutex_unlock(&adev->pm.stable_pstate_ctx_lock);
 346                 return -EINVAL;
 347         }
 348         /* override whatever a user ctx may have set */
 349         adev->pm.stable_pstate_ctx = NULL;
 350         mutex_unlock(&adev->pm.stable_pstate_ctx_lock);
 351
 352         pm_runtime_mark_last_busy(ddev->dev);
 353         pm_runtime_put_autosuspend(ddev->dev);
 354
 355         return count;
 356 }
 357
 358 static ssize_t amdgpu_get_pp_num_states(struct device *dev,
 359                 struct device_attribute *attr,
 360                 char *buf)
 361 {
 362         struct drm_device *ddev = dev_get_drvdata(dev);
 363         struct amdgpu_device *adev = drm_to_adev(ddev);
 364         struct pp_states_info data;
 365         uint32_t i;
 366         int buf_len, ret;
 367
 368         if (amdgpu_in_reset(adev))
 369                 return -EPERM;
 370         if (adev->in_suspend && !adev->in_runpm)
 371                 return -EPERM;
 372
 373         ret = pm_runtime_get_sync(ddev->dev);
 374         if (ret < 0) {
 375                 pm_runtime_put_autosuspend(ddev->dev);
 376                 return ret;
 377         }
 378
 379         if (amdgpu_dpm_get_pp_num_states(adev, &data))
 380                 memset(&data, 0, sizeof(data));
 381
 382         pm_runtime_mark_last_busy(ddev->dev);
 383         pm_runtime_put_autosuspend(ddev->dev);
 384
 385         buf_len = sysfs_emit(buf, "states: %d\n", data.nums);
 386         for (i = 0; i < data.nums; i++)
 387                 buf_len += sysfs_emit_at(buf, buf_len, "%d %s\n", i,
 388                                 (data.states[i] == POWER_STATE_TYPE_INTERNAL_BOOT) ? "boot" :
 389                                 (data.states[i] == POWER_STATE_TYPE_BATTERY) ? "battery" :
 390                                 (data.states[i] == POWER_STATE_TYPE_BALANCED) ? "balanced" :
 391                                 (data.states[i] == POWER_STATE_TYPE_PERFORMANCE) ? "performance" : "default");
 392
 393         return buf_len;
 394 }
 395
 396 static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
 397                 struct device_attribute *attr,
 398                 char *buf)
 399 {
 400         struct drm_device *ddev = dev_get_drvdata(dev);
 401         struct amdgpu_device *adev = drm_to_adev(ddev);
 402         struct pp_states_info data = {0};
 403         enum amd_pm_state_type pm = 0;
 404         int i = 0, ret = 0;
 405
 406         if (amdgpu_in_reset(adev))
 407                 return -EPERM;
 408         if (adev->in_suspend && !adev->in_runpm)
 409                 return -EPERM;
 410
 411         ret = pm_runtime_get_sync(ddev->dev);
 412         if (ret < 0) {
 413                 pm_runtime_put_autosuspend(ddev->dev);
 414                 return ret;
 415         }
 416
 417         amdgpu_dpm_get_current_power_state(adev, &pm);
 418
 419         ret = amdgpu_dpm_get_pp_num_states(adev, &data);
 420
 421         pm_runtime_mark_last_busy(ddev->dev);
 422         pm_runtime_put_autosuspend(ddev->dev);
 423
 424         if (ret)
 425                 return ret;
 426
 427         for (i = 0; i < data.nums; i++) {
 428                 if (pm == data.states[i])
 429                         break;
 430         }
 431
 432         if (i == data.nums)
 433                 i = -EINVAL;
 434
 435         return sysfs_emit(buf, "%d\n", i);
 436 }
 437
 438 static ssize_t amdgpu_get_pp_force_state(struct device *dev,
 439                 struct device_attribute *attr,
 440                 char *buf)
 441 {
 442         struct drm_device *ddev = dev_get_drvdata(dev);
 443         struct amdgpu_device *adev = drm_to_adev(ddev);
 444
 445         if (amdgpu_in_reset(adev))
 446                 return -EPERM;
 447         if (adev->in_suspend && !adev->in_runpm)
 448                 return -EPERM;
 449
 450         if (adev->pm.pp_force_state_enabled)
 451                 return amdgpu_get_pp_cur_state(dev, attr, buf);
 452         else
 453                 return sysfs_emit(buf, "\n");
 454 }
 455
 456 static ssize_t amdgpu_set_pp_force_state(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 = drm_to_adev(ddev);
 463         enum amd_pm_state_type state = 0;
 464         struct pp_states_info data;
 465         unsigned long idx;
 466         int ret;
 467
 468         if (amdgpu_in_reset(adev))
 469                 return -EPERM;
 470         if (adev->in_suspend && !adev->in_runpm)
 471                 return -EPERM;
 472
 473         adev->pm.pp_force_state_enabled = false;
 474
 475         if (strlen(buf) == 1)
 476                 return count;
 477
 478         ret = kstrtoul(buf, 0, &idx);
 479         if (ret || idx >= ARRAY_SIZE(data.states))
 480                 return -EINVAL;
 481
 482         idx = array_index_nospec(idx, ARRAY_SIZE(data.states));
 483
 484         ret = pm_runtime_get_sync(ddev->dev);
 485         if (ret < 0) {
 486                 pm_runtime_put_autosuspend(ddev->dev);
 487                 return ret;
 488         }
 489
 490         ret = amdgpu_dpm_get_pp_num_states(adev, &data);
 491         if (ret)
 492                 goto err_out;
 493
 494         state = data.states[idx];
 495
 496         /* only set user selected power states */
 497         if (state != POWER_STATE_TYPE_INTERNAL_BOOT &&
 498             state != POWER_STATE_TYPE_DEFAULT) {
 499                 ret = amdgpu_dpm_dispatch_task(adev,
 500                                 AMD_PP_TASK_ENABLE_USER_STATE, &state);
 501                 if (ret)
 502                         goto err_out;
 503
 504                 adev->pm.pp_force_state_enabled = true;
 505         }
 506
 507         pm_runtime_mark_last_busy(ddev->dev);
 508         pm_runtime_put_autosuspend(ddev->dev);
 509
 510         return count;
 511
 512 err_out:
 513         pm_runtime_mark_last_busy(ddev->dev);
 514         pm_runtime_put_autosuspend(ddev->dev);
 515         return ret;
 516 }
 517
 518 /**
 519  * DOC: pp_table
 520  *
 521  * The amdgpu driver provides a sysfs API for uploading new powerplay
 522  * tables.  The file pp_table is used for this.  Reading the file
 523  * will dump the current power play table.  Writing to the file
 524  * will attempt to upload a new powerplay table and re-initialize
 525  * powerplay using that new table.
 526  *
 527  */
 528
 529 static ssize_t amdgpu_get_pp_table(struct device *dev,
 530                 struct device_attribute *attr,
 531                 char *buf)
 532 {
 533         struct drm_device *ddev = dev_get_drvdata(dev);
 534         struct amdgpu_device *adev = drm_to_adev(ddev);
 535         char *table = NULL;
 536         int size, ret;
 537
 538         if (amdgpu_in_reset(adev))
 539                 return -EPERM;
 540         if (adev->in_suspend && !adev->in_runpm)
 541                 return -EPERM;
 542
 543         ret = pm_runtime_get_sync(ddev->dev);
 544         if (ret < 0) {
 545                 pm_runtime_put_autosuspend(ddev->dev);
 546                 return ret;
 547         }
 548
 549         size = amdgpu_dpm_get_pp_table(adev, &table);
 550
 551         pm_runtime_mark_last_busy(ddev->dev);
 552         pm_runtime_put_autosuspend(ddev->dev);
 553
 554         if (size <= 0)
 555                 return size;
 556
 557         if (size >= PAGE_SIZE)
 558                 size = PAGE_SIZE - 1;
 559
 560         memcpy(buf, table, size);
 561
 562         return size;
 563 }
 564
 565 static ssize_t amdgpu_set_pp_table(struct device *dev,
 566                 struct device_attribute *attr,
 567                 const char *buf,
 568                 size_t count)
 569 {
 570         struct drm_device *ddev = dev_get_drvdata(dev);
 571         struct amdgpu_device *adev = drm_to_adev(ddev);
 572         int ret = 0;
 573
 574         if (amdgpu_in_reset(adev))
 575                 return -EPERM;
 576         if (adev->in_suspend && !adev->in_runpm)
 577                 return -EPERM;
 578
 579         ret = pm_runtime_get_sync(ddev->dev);
 580         if (ret < 0) {
 581                 pm_runtime_put_autosuspend(ddev->dev);
 582                 return ret;
 583         }
 584
 585         ret = amdgpu_dpm_set_pp_table(adev, buf, count);
 586
 587         pm_runtime_mark_last_busy(ddev->dev);
 588         pm_runtime_put_autosuspend(ddev->dev);
 589
 590         if (ret)
 591                 return ret;
 592
 593         return count;
 594 }
 595
 596 /**
 597  * DOC: pp_od_clk_voltage
 598  *
 599  * The amdgpu driver provides a sysfs API for adjusting the clocks and voltages
 600  * in each power level within a power state.  The pp_od_clk_voltage is used for
 601  * this.
 602  *
 603  * Note that the actual memory controller clock rate are exposed, not
 604  * the effective memory clock of the DRAMs. To translate it, use the
 605  * following formula:
 606  *
 607  * Clock conversion (Mhz):
 608  *
 609  * HBM: effective_memory_clock = memory_controller_clock * 1
 610  *
 611  * G5: effective_memory_clock = memory_controller_clock * 1
 612  *
 613  * G6: effective_memory_clock = memory_controller_clock * 2
 614  *
 615  * DRAM data rate (MT/s):
 616  *
 617  * HBM: effective_memory_clock * 2 = data_rate
 618  *
 619  * G5: effective_memory_clock * 4 = data_rate
 620  *
 621  * G6: effective_memory_clock * 8 = data_rate
 622  *
 623  * Bandwidth (MB/s):
 624  *
 625  * data_rate * vram_bit_width / 8 = memory_bandwidth
 626  *
 627  * Some examples:
 628  *
 629  * G5 on RX460:
 630  *
 631  * memory_controller_clock = 1750 Mhz
 632  *
 633  * effective_memory_clock = 1750 Mhz * 1 = 1750 Mhz
 634  *
 635  * data rate = 1750 * 4 = 7000 MT/s
 636  *
 637  * memory_bandwidth = 7000 * 128 bits / 8 = 112000 MB/s
 638  *
 639  * G6 on RX5700:
 640  *
 641  * memory_controller_clock = 875 Mhz
 642  *
 643  * effective_memory_clock = 875 Mhz * 2 = 1750 Mhz
 644  *
 645  * data rate = 1750 * 8 = 14000 MT/s
 646  *
 647  * memory_bandwidth = 14000 * 256 bits / 8 = 448000 MB/s
 648  *
 649  * < For Vega10 and previous ASICs >
 650  *
 651  * Reading the file will display:
 652  *
 653  * - a list of engine clock levels and voltages labeled OD_SCLK
 654  *
 655  * - a list of memory clock levels and voltages labeled OD_MCLK
 656  *
 657  * - a list of valid ranges for sclk, mclk, and voltage labeled OD_RANGE
 658  *
 659  * To manually adjust these settings, first select manual using
 660  * power_dpm_force_performance_level. Enter a new value for each
 661  * level by writing a string that contains "s/m level clock voltage" to
 662  * the file.  E.g., "s 1 500 820" will update sclk level 1 to be 500 MHz
 663  * at 820 mV; "m 0 350 810" will update mclk level 0 to be 350 MHz at
 664  * 810 mV.  When you have edited all of the states as needed, write
 665  * "c" (commit) to the file to commit your changes.  If you want to reset to the
 666  * default power levels, write "r" (reset) to the file to reset them.
 667  *
 668  *
 669  * < For Vega20 and newer ASICs >
 670  *
 671  * Reading the file will display:
 672  *
 673  * - minimum and maximum engine clock labeled OD_SCLK
 674  *
 675  * - minimum(not available for Vega20 and Navi1x) and maximum memory
 676  *   clock labeled OD_MCLK
 677  *
 678  * - three <frequency, voltage> points labeled OD_VDDC_CURVE.
 679  *   They can be used to calibrate the sclk voltage curve.
 680  *
 681  * - voltage offset(in mV) applied on target voltage calculation.
 682  *   This is available for Sienna Cichlid, Navy Flounder and Dimgrey
 683  *   Cavefish. For these ASICs, the target voltage calculation can be
 684  *   illustrated by "voltage = voltage calculated from v/f curve +
 685  *   overdrive vddgfx offset"
 686  *
 687  * - a list of valid ranges for sclk, mclk, and voltage curve points
 688  *   labeled OD_RANGE
 689  *
 690  * < For APUs >
 691  *
 692  * Reading the file will display:
 693  *
 694  * - minimum and maximum engine clock labeled OD_SCLK
 695  *
 696  * - a list of valid ranges for sclk labeled OD_RANGE
 697  *
 698  * < For VanGogh >
 699  *
 700  * Reading the file will display:
 701  *
 702  * - minimum and maximum engine clock labeled OD_SCLK
 703  * - minimum and maximum core clocks labeled OD_CCLK
 704  *
 705  * - a list of valid ranges for sclk and cclk labeled OD_RANGE
 706  *
 707  * To manually adjust these settings:
 708  *
 709  * - First select manual using power_dpm_force_performance_level
 710  *
 711  * - For clock frequency setting, enter a new value by writing a
 712  *   string that contains "s/m index clock" to the file. The index
 713  *   should be 0 if to set minimum clock. And 1 if to set maximum
 714  *   clock. E.g., "s 0 500" will update minimum sclk to be 500 MHz.
 715  *   "m 1 800" will update maximum mclk to be 800Mhz. For core
 716  *   clocks on VanGogh, the string contains "p core index clock".
 717  *   E.g., "p 2 0 800" would set the minimum core clock on core
 718  *   2 to 800Mhz.
 719  *
 720  *   For sclk voltage curve, enter the new values by writing a
 721  *   string that contains "vc point clock voltage" to the file. The
 722  *   points are indexed by 0, 1 and 2. E.g., "vc 0 300 600" will
 723  *   update point1 with clock set as 300Mhz and voltage as
 724  *   600mV. "vc 2 1000 1000" will update point3 with clock set
 725  *   as 1000Mhz and voltage 1000mV.
 726  *
 727  *   To update the voltage offset applied for gfxclk/voltage calculation,
 728  *   enter the new value by writing a string that contains "vo offset".
 729  *   This is supported by Sienna Cichlid, Navy Flounder and Dimgrey Cavefish.
 730  *   And the offset can be a positive or negative value.
 731  *
 732  * - When you have edited all of the states as needed, write "c" (commit)
 733  *   to the file to commit your changes
 734  *
 735  * - If you want to reset to the default power levels, write "r" (reset)
 736  *   to the file to reset them
 737  *
 738  */
 739
 740 static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
 741                 struct device_attribute *attr,
 742                 const char *buf,
 743                 size_t count)
 744 {
 745         struct drm_device *ddev = dev_get_drvdata(dev);
 746         struct amdgpu_device *adev = drm_to_adev(ddev);
 747         int ret;
 748         uint32_t parameter_size = 0;
 749         long parameter[64];
 750         char buf_cpy[128];
 751         char *tmp_str;
 752         char *sub_str;
 753         const char delimiter[3] = {' ', '\n', '\0'};
 754         uint32_t type;
 755
 756         if (amdgpu_in_reset(adev))
 757                 return -EPERM;
 758         if (adev->in_suspend && !adev->in_runpm)
 759                 return -EPERM;
 760
 761         if (count > 127)
 762                 return -EINVAL;
 763
 764         if (*buf == 's')
 765                 type = PP_OD_EDIT_SCLK_VDDC_TABLE;
 766         else if (*buf == 'p')
 767                 type = PP_OD_EDIT_CCLK_VDDC_TABLE;
 768         else if (*buf == 'm')
 769                 type = PP_OD_EDIT_MCLK_VDDC_TABLE;
 770         else if(*buf == 'r')
 771                 type = PP_OD_RESTORE_DEFAULT_TABLE;
 772         else if (*buf == 'c')
 773                 type = PP_OD_COMMIT_DPM_TABLE;
 774         else if (!strncmp(buf, "vc", 2))
 775                 type = PP_OD_EDIT_VDDC_CURVE;
 776         else if (!strncmp(buf, "vo", 2))
 777                 type = PP_OD_EDIT_VDDGFX_OFFSET;
 778         else
 779                 return -EINVAL;
 780
 781         memcpy(buf_cpy, buf, count+1);
 782
 783         tmp_str = buf_cpy;
 784
 785         if ((type == PP_OD_EDIT_VDDC_CURVE) ||
 786              (type == PP_OD_EDIT_VDDGFX_OFFSET))
 787                 tmp_str++;
 788         while (isspace(*++tmp_str));
 789
 790         while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
 791                 if (strlen(sub_str) == 0)
 792                         continue;
 793                 ret = kstrtol(sub_str, 0, &parameter[parameter_size]);
 794                 if (ret)
 795                         return -EINVAL;
 796                 parameter_size++;
 797
 798                 while (isspace(*tmp_str))
 799                         tmp_str++;
 800         }
 801
 802         ret = pm_runtime_get_sync(ddev->dev);
 803         if (ret < 0) {
 804                 pm_runtime_put_autosuspend(ddev->dev);
 805                 return ret;
 806         }
 807
 808         if (amdgpu_dpm_set_fine_grain_clk_vol(adev,
 809                                               type,
 810                                               parameter,
 811                                               parameter_size))
 812                 goto err_out;
 813
 814         if (amdgpu_dpm_odn_edit_dpm_table(adev, type,
 815                                           parameter, parameter_size))
 816                 goto err_out;
 817
 818         if (type == PP_OD_COMMIT_DPM_TABLE) {
 819                 if (amdgpu_dpm_dispatch_task(adev,
 820                                              AMD_PP_TASK_READJUST_POWER_STATE,
 821                                              NULL))
 822                         goto err_out;
 823         }
 824
 825         pm_runtime_mark_last_busy(ddev->dev);
 826         pm_runtime_put_autosuspend(ddev->dev);
 827
 828         return count;
 829
 830 err_out:
 831         pm_runtime_mark_last_busy(ddev->dev);
 832         pm_runtime_put_autosuspend(ddev->dev);
 833         return -EINVAL;
 834 }
 835
 836 static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev,
 837                 struct device_attribute *attr,
 838                 char *buf)
 839 {
 840         struct drm_device *ddev = dev_get_drvdata(dev);
 841         struct amdgpu_device *adev = drm_to_adev(ddev);
 842         int size = 0;
 843         int ret;
 844         enum pp_clock_type od_clocks[6] = {
 845                 OD_SCLK,
 846                 OD_MCLK,
 847                 OD_VDDC_CURVE,
 848                 OD_RANGE,
 849                 OD_VDDGFX_OFFSET,
 850                 OD_CCLK,
 851         };
 852         uint clk_index;
 853
 854         if (amdgpu_in_reset(adev))
 855                 return -EPERM;
 856         if (adev->in_suspend && !adev->in_runpm)
 857                 return -EPERM;
 858
 859         ret = pm_runtime_get_sync(ddev->dev);
 860         if (ret < 0) {
 861                 pm_runtime_put_autosuspend(ddev->dev);
 862                 return ret;
 863         }
 864
 865         for (clk_index = 0 ; clk_index < 6 ; clk_index++) {
 866                 ret = amdgpu_dpm_emit_clock_levels(adev, od_clocks[clk_index], buf, &size);
 867                 if (ret)
 868                         break;
 869         }
 870         if (ret == -ENOENT) {
 871                 size = amdgpu_dpm_print_clock_levels(adev, OD_SCLK, buf);
 872                 if (size > 0) {
 873                         size += amdgpu_dpm_print_clock_levels(adev, OD_MCLK, buf + size);
 874                         size += amdgpu_dpm_print_clock_levels(adev, OD_VDDC_CURVE, buf + size);
 875                         size += amdgpu_dpm_print_clock_levels(adev, OD_VDDGFX_OFFSET, buf + size);
 876                         size += amdgpu_dpm_print_clock_levels(adev, OD_RANGE, buf + size);
 877                         size += amdgpu_dpm_print_clock_levels(adev, OD_CCLK, buf + size);
 878                 }
 879         }
 880
 881         if (size == 0)
 882                 size = sysfs_emit(buf, "\n");
 883
 884         pm_runtime_mark_last_busy(ddev->dev);
 885         pm_runtime_put_autosuspend(ddev->dev);
 886
 887         return size;
 888 }
 889
 890 /**
 891  * DOC: pp_features
 892  *
 893  * The amdgpu driver provides a sysfs API for adjusting what powerplay
 894  * features to be enabled. The file pp_features is used for this. And
 895  * this is only available for Vega10 and later dGPUs.
 896  *
 897  * Reading back the file will show you the followings:
 898  * - Current ppfeature masks
 899  * - List of the all supported powerplay features with their naming,
 900  *   bitmasks and enablement status('Y'/'N' means "enabled"/"disabled").
 901  *
 902  * To manually enable or disable a specific feature, just set or clear
 903  * the corresponding bit from original ppfeature masks and input the
 904  * new ppfeature masks.
 905  */
 906 static ssize_t amdgpu_set_pp_features(struct device *dev,
 907                                       struct device_attribute *attr,
 908                                       const char *buf,
 909                                       size_t count)
 910 {
 911         struct drm_device *ddev = dev_get_drvdata(dev);
 912         struct amdgpu_device *adev = drm_to_adev(ddev);
 913         uint64_t featuremask;
 914         int ret;
 915
 916         if (amdgpu_in_reset(adev))
 917                 return -EPERM;
 918         if (adev->in_suspend && !adev->in_runpm)
 919                 return -EPERM;
 920
 921         ret = kstrtou64(buf, 0, &featuremask);
 922         if (ret)
 923                 return -EINVAL;
 924
 925         ret = pm_runtime_get_sync(ddev->dev);
 926         if (ret < 0) {
 927                 pm_runtime_put_autosuspend(ddev->dev);
 928                 return ret;
 929         }
 930
 931         ret = amdgpu_dpm_set_ppfeature_status(adev, featuremask);
 932
 933         pm_runtime_mark_last_busy(ddev->dev);
 934         pm_runtime_put_autosuspend(ddev->dev);
 935
 936         if (ret)
 937                 return -EINVAL;
 938
 939         return count;
 940 }
 941
 942 static ssize_t amdgpu_get_pp_features(struct device *dev,
 943                                       struct device_attribute *attr,
 944                                       char *buf)
 945 {
 946         struct drm_device *ddev = dev_get_drvdata(dev);
 947         struct amdgpu_device *adev = drm_to_adev(ddev);
 948         ssize_t size;
 949         int ret;
 950
 951         if (amdgpu_in_reset(adev))
 952                 return -EPERM;
 953         if (adev->in_suspend && !adev->in_runpm)
 954                 return -EPERM;
 955
 956         ret = pm_runtime_get_sync(ddev->dev);
 957         if (ret < 0) {
 958                 pm_runtime_put_autosuspend(ddev->dev);
 959                 return ret;
 960         }
 961
 962         size = amdgpu_dpm_get_ppfeature_status(adev, buf);
 963         if (size <= 0)
 964                 size = sysfs_emit(buf, "\n");
 965
 966         pm_runtime_mark_last_busy(ddev->dev);
 967         pm_runtime_put_autosuspend(ddev->dev);
 968
 969         return size;
 970 }
 971
 972 /**
 973  * DOC: pp_dpm_sclk pp_dpm_mclk pp_dpm_socclk pp_dpm_fclk pp_dpm_dcefclk pp_dpm_pcie
 974  *
 975  * The amdgpu driver provides a sysfs API for adjusting what power levels
 976  * are enabled for a given power state.  The files pp_dpm_sclk, pp_dpm_mclk,
 977  * pp_dpm_socclk, pp_dpm_fclk, pp_dpm_dcefclk and pp_dpm_pcie are used for
 978  * this.
 979  *
 980  * pp_dpm_socclk and pp_dpm_dcefclk interfaces are only available for
 981  * Vega10 and later ASICs.
 982  * pp_dpm_fclk interface is only available for Vega20 and later ASICs.
 983  *
 984  * Reading back the files will show you the available power levels within
 985  * the power state and the clock information for those levels.
 986  *
 987  * To manually adjust these states, first select manual using
 988  * power_dpm_force_performance_level.
 989  * Secondly, enter a new value for each level by inputing a string that
 990  * contains " echo xx xx xx > pp_dpm_sclk/mclk/pcie"
 991  * E.g.,
 992  *
 993  * .. code-block:: bash
 994  *
 995  *      echo "4 5 6" > pp_dpm_sclk
 996  *
 997  * will enable sclk levels 4, 5, and 6.
 998  *
 999  * NOTE: change to the dcefclk max dpm level is not supported now
1000  */
1001
1002 static ssize_t amdgpu_get_pp_dpm_clock(struct device *dev,
1003                 enum pp_clock_type type,
1004                 char *buf)
1005 {
1006         struct drm_device *ddev = dev_get_drvdata(dev);
1007         struct amdgpu_device *adev = drm_to_adev(ddev);
1008         int size = 0;
1009         int ret = 0;
1010
1011         if (amdgpu_in_reset(adev))
1012                 return -EPERM;
1013         if (adev->in_suspend && !adev->in_runpm)
1014                 return -EPERM;
1015
1016         ret = pm_runtime_get_sync(ddev->dev);
1017         if (ret < 0) {
1018                 pm_runtime_put_autosuspend(ddev->dev);
1019                 return ret;
1020         }
1021
1022         ret = amdgpu_dpm_emit_clock_levels(adev, type, buf, &size);
1023         if (ret == -ENOENT)
1024                 size = amdgpu_dpm_print_clock_levels(adev, type, buf);
1025
1026         if (size == 0)
1027                 size = sysfs_emit(buf, "\n");
1028
1029         pm_runtime_mark_last_busy(ddev->dev);
1030         pm_runtime_put_autosuspend(ddev->dev);
1031
1032         return size;
1033 }
1034
1035 /*
1036  * Worst case: 32 bits individually specified, in octal at 12 characters
1037  * per line (+1 for \n).
1038  */
1039 #define AMDGPU_MASK_BUF_MAX     (32 * 13)
1040
1041 static ssize_t amdgpu_read_mask(const char *buf, size_t count, uint32_t *mask)
1042 {
1043         int ret;
1044         unsigned long level;
1045         char *sub_str = NULL;
1046         char *tmp;
1047         char buf_cpy[AMDGPU_MASK_BUF_MAX + 1];
1048         const char delimiter[3] = {' ', '\n', '\0'};
1049         size_t bytes;
1050
1051         *mask = 0;
1052
1053         bytes = min(count, sizeof(buf_cpy) - 1);
1054         memcpy(buf_cpy, buf, bytes);
1055         buf_cpy[bytes] = '\0';
1056         tmp = buf_cpy;
1057         while ((sub_str = strsep(&tmp, delimiter)) != NULL) {
1058                 if (strlen(sub_str)) {
1059                         ret = kstrtoul(sub_str, 0, &level);
1060                         if (ret || level > 31)
1061                                 return -EINVAL;
1062                         *mask |= 1 << level;
1063                 } else
1064                         break;
1065         }
1066
1067         return 0;
1068 }
1069
1070 static ssize_t amdgpu_set_pp_dpm_clock(struct device *dev,
1071                 enum pp_clock_type type,
1072                 const char *buf,
1073                 size_t count)
1074 {
1075         struct drm_device *ddev = dev_get_drvdata(dev);
1076         struct amdgpu_device *adev = drm_to_adev(ddev);
1077         int ret;
1078         uint32_t mask = 0;
1079
1080         if (amdgpu_in_reset(adev))
1081                 return -EPERM;
1082         if (adev->in_suspend && !adev->in_runpm)
1083                 return -EPERM;
1084
1085         ret = amdgpu_read_mask(buf, count, &mask);
1086         if (ret)
1087                 return ret;
1088
1089         ret = pm_runtime_get_sync(ddev->dev);
1090         if (ret < 0) {
1091                 pm_runtime_put_autosuspend(ddev->dev);
1092                 return ret;
1093         }
1094
1095         ret = amdgpu_dpm_force_clock_level(adev, type, mask);
1096
1097         pm_runtime_mark_last_busy(ddev->dev);
1098         pm_runtime_put_autosuspend(ddev->dev);
1099
1100         if (ret)
1101                 return -EINVAL;
1102
1103         return count;
1104 }
1105
1106 static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
1107                 struct device_attribute *attr,
1108                 char *buf)
1109 {
1110         return amdgpu_get_pp_dpm_clock(dev, PP_SCLK, buf);
1111 }
1112
1113 static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
1114                 struct device_attribute *attr,
1115                 const char *buf,
1116                 size_t count)
1117 {
1118         return amdgpu_set_pp_dpm_clock(dev, PP_SCLK, buf, count);
1119 }
1120
1121 static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
1122                 struct device_attribute *attr,
1123                 char *buf)
1124 {
1125         return amdgpu_get_pp_dpm_clock(dev, PP_MCLK, buf);
1126 }
1127
1128 static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
1129                 struct device_attribute *attr,
1130                 const char *buf,
1131                 size_t count)
1132 {
1133         return amdgpu_set_pp_dpm_clock(dev, PP_MCLK, buf, count);
1134 }
1135
1136 static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev,
1137                 struct device_attribute *attr,
1138                 char *buf)
1139 {
1140         return amdgpu_get_pp_dpm_clock(dev, PP_SOCCLK, buf);
1141 }
1142
1143 static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
1144                 struct device_attribute *attr,
1145                 const char *buf,
1146                 size_t count)
1147 {
1148         return amdgpu_set_pp_dpm_clock(dev, PP_SOCCLK, buf, count);
1149 }
1150
1151 static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev,
1152                 struct device_attribute *attr,
1153                 char *buf)
1154 {
1155         return amdgpu_get_pp_dpm_clock(dev, PP_FCLK, buf);
1156 }
1157
1158 static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
1159                 struct device_attribute *attr,
1160                 const char *buf,
1161                 size_t count)
1162 {
1163         return amdgpu_set_pp_dpm_clock(dev, PP_FCLK, buf, count);
1164 }
1165
1166 static ssize_t amdgpu_get_pp_dpm_vclk(struct device *dev,
1167                 struct device_attribute *attr,
1168                 char *buf)
1169 {
1170         return amdgpu_get_pp_dpm_clock(dev, PP_VCLK, buf);
1171 }
1172
1173 static ssize_t amdgpu_set_pp_dpm_vclk(struct device *dev,
1174                 struct device_attribute *attr,
1175                 const char *buf,
1176                 size_t count)
1177 {
1178         return amdgpu_set_pp_dpm_clock(dev, PP_VCLK, buf, count);
1179 }
1180
1181 static ssize_t amdgpu_get_pp_dpm_dclk(struct device *dev,
1182                 struct device_attribute *attr,
1183                 char *buf)
1184 {
1185         return amdgpu_get_pp_dpm_clock(dev, PP_DCLK, buf);
1186 }
1187
1188 static ssize_t amdgpu_set_pp_dpm_dclk(struct device *dev,
1189                 struct device_attribute *attr,
1190                 const char *buf,
1191                 size_t count)
1192 {
1193         return amdgpu_set_pp_dpm_clock(dev, PP_DCLK, buf, count);
1194 }
1195
1196 static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev,
1197                 struct device_attribute *attr,
1198                 char *buf)
1199 {
1200         return amdgpu_get_pp_dpm_clock(dev, PP_DCEFCLK, buf);
1201 }
1202
1203 static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
1204                 struct device_attribute *attr,
1205                 const char *buf,
1206                 size_t count)
1207 {
1208         return amdgpu_set_pp_dpm_clock(dev, PP_DCEFCLK, buf, count);
1209 }
1210
1211 static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev,
1212                 struct device_attribute *attr,
1213                 char *buf)
1214 {
1215         return amdgpu_get_pp_dpm_clock(dev, PP_PCIE, buf);
1216 }
1217
1218 static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
1219                 struct device_attribute *attr,
1220                 const char *buf,
1221                 size_t count)
1222 {
1223         return amdgpu_set_pp_dpm_clock(dev, PP_PCIE, buf, count);
1224 }
1225
1226 static ssize_t amdgpu_get_pp_sclk_od(struct device *dev,
1227                 struct device_attribute *attr,
1228                 char *buf)
1229 {
1230         struct drm_device *ddev = dev_get_drvdata(dev);
1231         struct amdgpu_device *adev = drm_to_adev(ddev);
1232         uint32_t value = 0;
1233         int ret;
1234
1235         if (amdgpu_in_reset(adev))
1236                 return -EPERM;
1237         if (adev->in_suspend && !adev->in_runpm)
1238                 return -EPERM;
1239
1240         ret = pm_runtime_get_sync(ddev->dev);
1241         if (ret < 0) {
1242                 pm_runtime_put_autosuspend(ddev->dev);
1243                 return ret;
1244         }
1245
1246         value = amdgpu_dpm_get_sclk_od(adev);
1247
1248         pm_runtime_mark_last_busy(ddev->dev);
1249         pm_runtime_put_autosuspend(ddev->dev);
1250
1251         return sysfs_emit(buf, "%d\n", value);
1252 }
1253
1254 static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
1255                 struct device_attribute *attr,
1256                 const char *buf,
1257                 size_t count)
1258 {
1259         struct drm_device *ddev = dev_get_drvdata(dev);
1260         struct amdgpu_device *adev = drm_to_adev(ddev);
1261         int ret;
1262         long int value;
1263
1264         if (amdgpu_in_reset(adev))
1265                 return -EPERM;
1266         if (adev->in_suspend && !adev->in_runpm)
1267                 return -EPERM;
1268
1269         ret = kstrtol(buf, 0, &value);
1270
1271         if (ret)
1272                 return -EINVAL;
1273
1274         ret = pm_runtime_get_sync(ddev->dev);
1275         if (ret < 0) {
1276                 pm_runtime_put_autosuspend(ddev->dev);
1277                 return ret;
1278         }
1279
1280         amdgpu_dpm_set_sclk_od(adev, (uint32_t)value);
1281
1282         pm_runtime_mark_last_busy(ddev->dev);
1283         pm_runtime_put_autosuspend(ddev->dev);
1284
1285         return count;
1286 }
1287
1288 static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
1289                 struct device_attribute *attr,
1290                 char *buf)
1291 {
1292         struct drm_device *ddev = dev_get_drvdata(dev);
1293         struct amdgpu_device *adev = drm_to_adev(ddev);
1294         uint32_t value = 0;
1295         int ret;
1296
1297         if (amdgpu_in_reset(adev))
1298                 return -EPERM;
1299         if (adev->in_suspend && !adev->in_runpm)
1300                 return -EPERM;
1301
1302         ret = pm_runtime_get_sync(ddev->dev);
1303         if (ret < 0) {
1304                 pm_runtime_put_autosuspend(ddev->dev);
1305                 return ret;
1306         }
1307
1308         value = amdgpu_dpm_get_mclk_od(adev);
1309
1310         pm_runtime_mark_last_busy(ddev->dev);
1311         pm_runtime_put_autosuspend(ddev->dev);
1312
1313         return sysfs_emit(buf, "%d\n", value);
1314 }
1315
1316 static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
1317                 struct device_attribute *attr,
1318                 const char *buf,
1319                 size_t count)
1320 {
1321         struct drm_device *ddev = dev_get_drvdata(dev);
1322         struct amdgpu_device *adev = drm_to_adev(ddev);
1323         int ret;
1324         long int value;
1325
1326         if (amdgpu_in_reset(adev))
1327                 return -EPERM;
1328         if (adev->in_suspend && !adev->in_runpm)
1329                 return -EPERM;
1330
1331         ret = kstrtol(buf, 0, &value);
1332
1333         if (ret)
1334                 return -EINVAL;
1335
1336         ret = pm_runtime_get_sync(ddev->dev);
1337         if (ret < 0) {
1338                 pm_runtime_put_autosuspend(ddev->dev);
1339                 return ret;
1340         }
1341
1342         amdgpu_dpm_set_mclk_od(adev, (uint32_t)value);
1343
1344         pm_runtime_mark_last_busy(ddev->dev);
1345         pm_runtime_put_autosuspend(ddev->dev);
1346
1347         return count;
1348 }
1349
1350 /**
1351  * DOC: pp_power_profile_mode
1352  *
1353  * The amdgpu driver provides a sysfs API for adjusting the heuristics
1354  * related to switching between power levels in a power state.  The file
1355  * pp_power_profile_mode is used for this.
1356  *
1357  * Reading this file outputs a list of all of the predefined power profiles
1358  * and the relevant heuristics settings for that profile.
1359  *
1360  * To select a profile or create a custom profile, first select manual using
1361  * power_dpm_force_performance_level.  Writing the number of a predefined
1362  * profile to pp_power_profile_mode will enable those heuristics.  To
1363  * create a custom set of heuristics, write a string of numbers to the file
1364  * starting with the number of the custom profile along with a setting
1365  * for each heuristic parameter.  Due to differences across asic families
1366  * the heuristic parameters vary from family to family.
1367  *
1368  */
1369
1370 static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
1371                 struct device_attribute *attr,
1372                 char *buf)
1373 {
1374         struct drm_device *ddev = dev_get_drvdata(dev);
1375         struct amdgpu_device *adev = drm_to_adev(ddev);
1376         ssize_t size;
1377         int ret;
1378
1379         if (amdgpu_in_reset(adev))
1380                 return -EPERM;
1381         if (adev->in_suspend && !adev->in_runpm)
1382                 return -EPERM;
1383
1384         ret = pm_runtime_get_sync(ddev->dev);
1385         if (ret < 0) {
1386                 pm_runtime_put_autosuspend(ddev->dev);
1387                 return ret;
1388         }
1389
1390         size = amdgpu_dpm_get_power_profile_mode(adev, buf);
1391         if (size <= 0)
1392                 size = sysfs_emit(buf, "\n");
1393
1394         pm_runtime_mark_last_busy(ddev->dev);
1395         pm_runtime_put_autosuspend(ddev->dev);
1396
1397         return size;
1398 }
1399
1400
1401 static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
1402                 struct device_attribute *attr,
1403                 const char *buf,
1404                 size_t count)
1405 {
1406         int ret;
1407         struct drm_device *ddev = dev_get_drvdata(dev);
1408         struct amdgpu_device *adev = drm_to_adev(ddev);
1409         uint32_t parameter_size = 0;
1410         long parameter[64];
1411         char *sub_str, buf_cpy[128];
1412         char *tmp_str;
1413         uint32_t i = 0;
1414         char tmp[2];
1415         long int profile_mode = 0;
1416         const char delimiter[3] = {' ', '\n', '\0'};
1417
1418         if (amdgpu_in_reset(adev))
1419                 return -EPERM;
1420         if (adev->in_suspend && !adev->in_runpm)
1421                 return -EPERM;
1422
1423         tmp[0] = *(buf);
1424         tmp[1] = '\0';
1425         ret = kstrtol(tmp, 0, &profile_mode);
1426         if (ret)
1427                 return -EINVAL;
1428
1429         if (profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) {
1430                 if (count < 2 || count > 127)
1431                         return -EINVAL;
1432                 while (isspace(*++buf))
1433                         i++;
1434                 memcpy(buf_cpy, buf, count-i);
1435                 tmp_str = buf_cpy;
1436                 while ((sub_str = strsep(&tmp_str, delimiter)) != NULL) {
1437                         if (strlen(sub_str) == 0)
1438                                 continue;
1439                         ret = kstrtol(sub_str, 0, &parameter[parameter_size]);
1440                         if (ret)
1441                                 return -EINVAL;
1442                         parameter_size++;
1443                         while (isspace(*tmp_str))
1444                                 tmp_str++;
1445                 }
1446         }
1447         parameter[parameter_size] = profile_mode;
1448
1449         ret = pm_runtime_get_sync(ddev->dev);
1450         if (ret < 0) {
1451                 pm_runtime_put_autosuspend(ddev->dev);
1452                 return ret;
1453         }
1454
1455         ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size);
1456
1457         pm_runtime_mark_last_busy(ddev->dev);
1458         pm_runtime_put_autosuspend(ddev->dev);
1459
1460         if (!ret)
1461                 return count;
1462
1463         return -EINVAL;
1464 }
1465
1466 /**
1467  * DOC: gpu_busy_percent
1468  *
1469  * The amdgpu driver provides a sysfs API for reading how busy the GPU
1470  * is as a percentage.  The file gpu_busy_percent is used for this.
1471  * The SMU firmware computes a percentage of load based on the
1472  * aggregate activity level in the IP cores.
1473  */
1474 static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev,
1475                                            struct device_attribute *attr,
1476                                            char *buf)
1477 {
1478         struct drm_device *ddev = dev_get_drvdata(dev);
1479         struct amdgpu_device *adev = drm_to_adev(ddev);
1480         int r, value, size = sizeof(value);
1481
1482         if (amdgpu_in_reset(adev))
1483                 return -EPERM;
1484         if (adev->in_suspend && !adev->in_runpm)
1485                 return -EPERM;
1486
1487         r = pm_runtime_get_sync(ddev->dev);
1488         if (r < 0) {
1489                 pm_runtime_put_autosuspend(ddev->dev);
1490                 return r;
1491         }
1492
1493         /* read the IP busy sensor */
1494         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD,
1495                                    (void *)&value, &size);
1496
1497         pm_runtime_mark_last_busy(ddev->dev);
1498         pm_runtime_put_autosuspend(ddev->dev);
1499
1500         if (r)
1501                 return r;
1502
1503         return sysfs_emit(buf, "%d\n", value);
1504 }
1505
1506 /**
1507  * DOC: mem_busy_percent
1508  *
1509  * The amdgpu driver provides a sysfs API for reading how busy the VRAM
1510  * is as a percentage.  The file mem_busy_percent is used for this.
1511  * The SMU firmware computes a percentage of load based on the
1512  * aggregate activity level in the IP cores.
1513  */
1514 static ssize_t amdgpu_get_mem_busy_percent(struct device *dev,
1515                                            struct device_attribute *attr,
1516                                            char *buf)
1517 {
1518         struct drm_device *ddev = dev_get_drvdata(dev);
1519         struct amdgpu_device *adev = drm_to_adev(ddev);
1520         int r, value, size = sizeof(value);
1521
1522         if (amdgpu_in_reset(adev))
1523                 return -EPERM;
1524         if (adev->in_suspend && !adev->in_runpm)
1525                 return -EPERM;
1526
1527         r = pm_runtime_get_sync(ddev->dev);
1528         if (r < 0) {
1529                 pm_runtime_put_autosuspend(ddev->dev);
1530                 return r;
1531         }
1532
1533         /* read the IP busy sensor */
1534         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_LOAD,
1535                                    (void *)&value, &size);
1536
1537         pm_runtime_mark_last_busy(ddev->dev);
1538         pm_runtime_put_autosuspend(ddev->dev);
1539
1540         if (r)
1541                 return r;
1542
1543         return sysfs_emit(buf, "%d\n", value);
1544 }
1545
1546 /**
1547  * DOC: pcie_bw
1548  *
1549  * The amdgpu driver provides a sysfs API for estimating how much data
1550  * has been received and sent by the GPU in the last second through PCIe.
1551  * The file pcie_bw is used for this.
1552  * The Perf counters count the number of received and sent messages and return
1553  * those values, as well as the maximum payload size of a PCIe packet (mps).
1554  * Note that it is not possible to easily and quickly obtain the size of each
1555  * packet transmitted, so we output the max payload size (mps) to allow for
1556  * quick estimation of the PCIe bandwidth usage
1557  */
1558 static ssize_t amdgpu_get_pcie_bw(struct device *dev,
1559                 struct device_attribute *attr,
1560                 char *buf)
1561 {
1562         struct drm_device *ddev = dev_get_drvdata(dev);
1563         struct amdgpu_device *adev = drm_to_adev(ddev);
1564         uint64_t count0 = 0, count1 = 0;
1565         int ret;
1566
1567         if (amdgpu_in_reset(adev))
1568                 return -EPERM;
1569         if (adev->in_suspend && !adev->in_runpm)
1570                 return -EPERM;
1571
1572         if (adev->flags & AMD_IS_APU)
1573                 return -ENODATA;
1574
1575         if (!adev->asic_funcs->get_pcie_usage)
1576                 return -ENODATA;
1577
1578         ret = pm_runtime_get_sync(ddev->dev);
1579         if (ret < 0) {
1580                 pm_runtime_put_autosuspend(ddev->dev);
1581                 return ret;
1582         }
1583
1584         amdgpu_asic_get_pcie_usage(adev, &count0, &count1);
1585
1586         pm_runtime_mark_last_busy(ddev->dev);
1587         pm_runtime_put_autosuspend(ddev->dev);
1588
1589         return sysfs_emit(buf, "%llu %llu %i\n",
1590                           count0, count1, pcie_get_mps(adev->pdev));
1591 }
1592
1593 /**
1594  * DOC: unique_id
1595  *
1596  * The amdgpu driver provides a sysfs API for providing a unique ID for the GPU
1597  * The file unique_id is used for this.
1598  * This will provide a Unique ID that will persist from machine to machine
1599  *
1600  * NOTE: This will only work for GFX9 and newer. This file will be absent
1601  * on unsupported ASICs (GFX8 and older)
1602  */
1603 static ssize_t amdgpu_get_unique_id(struct device *dev,
1604                 struct device_attribute *attr,
1605                 char *buf)
1606 {
1607         struct drm_device *ddev = dev_get_drvdata(dev);
1608         struct amdgpu_device *adev = drm_to_adev(ddev);
1609
1610         if (amdgpu_in_reset(adev))
1611                 return -EPERM;
1612         if (adev->in_suspend && !adev->in_runpm)
1613                 return -EPERM;
1614
1615         if (adev->unique_id)
1616                 return sysfs_emit(buf, "%016llx\n", adev->unique_id);
1617
1618         return 0;
1619 }
1620
1621 /**
1622  * DOC: thermal_throttling_logging
1623  *
1624  * Thermal throttling pulls down the clock frequency and thus the performance.
1625  * It's an useful mechanism to protect the chip from overheating. Since it
1626  * impacts performance, the user controls whether it is enabled and if so,
1627  * the log frequency.
1628  *
1629  * Reading back the file shows you the status(enabled or disabled) and
1630  * the interval(in seconds) between each thermal logging.
1631  *
1632  * Writing an integer to the file, sets a new logging interval, in seconds.
1633  * The value should be between 1 and 3600. If the value is less than 1,
1634  * thermal logging is disabled. Values greater than 3600 are ignored.
1635  */
1636 static ssize_t amdgpu_get_thermal_throttling_logging(struct device *dev,
1637                                                      struct device_attribute *attr,
1638                                                      char *buf)
1639 {
1640         struct drm_device *ddev = dev_get_drvdata(dev);
1641         struct amdgpu_device *adev = drm_to_adev(ddev);
1642
1643         return sysfs_emit(buf, "%s: thermal throttling logging %s, with interval %d seconds\n",
1644                           adev_to_drm(adev)->unique,
1645                           atomic_read(&adev->throttling_logging_enabled) ? "enabled" : "disabled",
1646                           adev->throttling_logging_rs.interval / HZ + 1);
1647 }
1648
1649 static ssize_t amdgpu_set_thermal_throttling_logging(struct device *dev,
1650                                                      struct device_attribute *attr,
1651                                                      const char *buf,
1652                                                      size_t count)
1653 {
1654         struct drm_device *ddev = dev_get_drvdata(dev);
1655         struct amdgpu_device *adev = drm_to_adev(ddev);
1656         long throttling_logging_interval;
1657         unsigned long flags;
1658         int ret = 0;
1659
1660         ret = kstrtol(buf, 0, &throttling_logging_interval);
1661         if (ret)
1662                 return ret;
1663
1664         if (throttling_logging_interval > 3600)
1665                 return -EINVAL;
1666
1667         if (throttling_logging_interval > 0) {
1668                 raw_spin_lock_irqsave(&adev->throttling_logging_rs.lock, flags);
1669                 /*
1670                  * Reset the ratelimit timer internals.
1671                  * This can effectively restart the timer.
1672                  */
1673                 adev->throttling_logging_rs.interval =
1674                         (throttling_logging_interval - 1) * HZ;
1675                 adev->throttling_logging_rs.begin = 0;
1676                 adev->throttling_logging_rs.printed = 0;
1677                 adev->throttling_logging_rs.missed = 0;
1678                 raw_spin_unlock_irqrestore(&adev->throttling_logging_rs.lock, flags);
1679
1680                 atomic_set(&adev->throttling_logging_enabled, 1);
1681         } else {
1682                 atomic_set(&adev->throttling_logging_enabled, 0);
1683         }
1684
1685         return count;
1686 }
1687
1688 /**
1689  * DOC: gpu_metrics
1690  *
1691  * The amdgpu driver provides a sysfs API for retrieving current gpu
1692  * metrics data. The file gpu_metrics is used for this. Reading the
1693  * file will dump all the current gpu metrics data.
1694  *
1695  * These data include temperature, frequency, engines utilization,
1696  * power consume, throttler status, fan speed and cpu core statistics(
1697  * available for APU only). That's it will give a snapshot of all sensors
1698  * at the same time.
1699  */
1700 static ssize_t amdgpu_get_gpu_metrics(struct device *dev,
1701                                       struct device_attribute *attr,
1702                                       char *buf)
1703 {
1704         struct drm_device *ddev = dev_get_drvdata(dev);
1705         struct amdgpu_device *adev = drm_to_adev(ddev);
1706         void *gpu_metrics;
1707         ssize_t size = 0;
1708         int ret;
1709
1710         if (amdgpu_in_reset(adev))
1711                 return -EPERM;
1712         if (adev->in_suspend && !adev->in_runpm)
1713                 return -EPERM;
1714
1715         ret = pm_runtime_get_sync(ddev->dev);
1716         if (ret < 0) {
1717                 pm_runtime_put_autosuspend(ddev->dev);
1718                 return ret;
1719         }
1720
1721         size = amdgpu_dpm_get_gpu_metrics(adev, &gpu_metrics);
1722         if (size <= 0)
1723                 goto out;
1724
1725         if (size >= PAGE_SIZE)
1726                 size = PAGE_SIZE - 1;
1727
1728         memcpy(buf, gpu_metrics, size);
1729
1730 out:
1731         pm_runtime_mark_last_busy(ddev->dev);
1732         pm_runtime_put_autosuspend(ddev->dev);
1733
1734         return size;
1735 }
1736
1737 static int amdgpu_device_read_powershift(struct amdgpu_device *adev,
1738                                                 uint32_t *ss_power, bool dgpu_share)
1739 {
1740         struct drm_device *ddev = adev_to_drm(adev);
1741         uint32_t size;
1742         int r = 0;
1743
1744         if (amdgpu_in_reset(adev))
1745                 return -EPERM;
1746         if (adev->in_suspend && !adev->in_runpm)
1747                 return -EPERM;
1748
1749         r = pm_runtime_get_sync(ddev->dev);
1750         if (r < 0) {
1751                 pm_runtime_put_autosuspend(ddev->dev);
1752                 return r;
1753         }
1754
1755         if (dgpu_share)
1756                 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_DGPU_SHARE,
1757                                    (void *)ss_power, &size);
1758         else
1759                 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_APU_SHARE,
1760                                    (void *)ss_power, &size);
1761
1762         pm_runtime_mark_last_busy(ddev->dev);
1763         pm_runtime_put_autosuspend(ddev->dev);
1764         return r;
1765 }
1766
1767 static int amdgpu_show_powershift_percent(struct device *dev,
1768                                         char *buf, bool dgpu_share)
1769 {
1770         struct drm_device *ddev = dev_get_drvdata(dev);
1771         struct amdgpu_device *adev = drm_to_adev(ddev);
1772         uint32_t ss_power;
1773         int r = 0, i;
1774
1775         r = amdgpu_device_read_powershift(adev, &ss_power, dgpu_share);
1776         if (r == -EOPNOTSUPP) {
1777                 /* sensor not available on dGPU, try to read from APU */
1778                 adev = NULL;
1779                 mutex_lock(&mgpu_info.mutex);
1780                 for (i = 0; i < mgpu_info.num_gpu; i++) {
1781                         if (mgpu_info.gpu_ins[i].adev->flags & AMD_IS_APU) {
1782                                 adev = mgpu_info.gpu_ins[i].adev;
1783                                 break;
1784                         }
1785                 }
1786                 mutex_unlock(&mgpu_info.mutex);
1787                 if (adev)
1788                         r = amdgpu_device_read_powershift(adev, &ss_power, dgpu_share);
1789         }
1790
1791         if (!r)
1792                 r = sysfs_emit(buf, "%u%%\n", ss_power);
1793
1794         return r;
1795 }
1796 /**
1797  * DOC: smartshift_apu_power
1798  *
1799  * The amdgpu driver provides a sysfs API for reporting APU power
1800  * shift in percentage if platform supports smartshift. Value 0 means that
1801  * there is no powershift and values between [1-100] means that the power
1802  * is shifted to APU, the percentage of boost is with respect to APU power
1803  * limit on the platform.
1804  */
1805
1806 static ssize_t amdgpu_get_smartshift_apu_power(struct device *dev, struct device_attribute *attr,
1807                                                char *buf)
1808 {
1809         return amdgpu_show_powershift_percent(dev, buf, false);
1810 }
1811
1812 /**
1813  * DOC: smartshift_dgpu_power
1814  *
1815  * The amdgpu driver provides a sysfs API for reporting dGPU power
1816  * shift in percentage if platform supports smartshift. Value 0 means that
1817  * there is no powershift and values between [1-100] means that the power is
1818  * shifted to dGPU, the percentage of boost is with respect to dGPU power
1819  * limit on the platform.
1820  */
1821
1822 static ssize_t amdgpu_get_smartshift_dgpu_power(struct device *dev, struct device_attribute *attr,
1823                                                 char *buf)
1824 {
1825         return amdgpu_show_powershift_percent(dev, buf, true);
1826 }
1827
1828 /**
1829  * DOC: smartshift_bias
1830  *
1831  * The amdgpu driver provides a sysfs API for reporting the
1832  * smartshift(SS2.0) bias level. The value ranges from -100 to 100
1833  * and the default is 0. -100 sets maximum preference to APU
1834  * and 100 sets max perference to dGPU.
1835  */
1836
1837 static ssize_t amdgpu_get_smartshift_bias(struct device *dev,
1838                                           struct device_attribute *attr,
1839                                           char *buf)
1840 {
1841         int r = 0;
1842
1843         r = sysfs_emit(buf, "%d\n", amdgpu_smartshift_bias);
1844
1845         return r;
1846 }
1847
1848 static ssize_t amdgpu_set_smartshift_bias(struct device *dev,
1849                                           struct device_attribute *attr,
1850                                           const char *buf, size_t count)
1851 {
1852         struct drm_device *ddev = dev_get_drvdata(dev);
1853         struct amdgpu_device *adev = drm_to_adev(ddev);
1854         int r = 0;
1855         int bias = 0;
1856
1857         if (amdgpu_in_reset(adev))
1858                 return -EPERM;
1859         if (adev->in_suspend && !adev->in_runpm)
1860                 return -EPERM;
1861
1862         r = pm_runtime_get_sync(ddev->dev);
1863         if (r < 0) {
1864                 pm_runtime_put_autosuspend(ddev->dev);
1865                 return r;
1866         }
1867
1868         r = kstrtoint(buf, 10, &bias);
1869         if (r)
1870                 goto out;
1871
1872         if (bias > AMDGPU_SMARTSHIFT_MAX_BIAS)
1873                 bias = AMDGPU_SMARTSHIFT_MAX_BIAS;
1874         else if (bias < AMDGPU_SMARTSHIFT_MIN_BIAS)
1875                 bias = AMDGPU_SMARTSHIFT_MIN_BIAS;
1876
1877         amdgpu_smartshift_bias = bias;
1878         r = count;
1879
1880         /* TODO: update bias level with SMU message */
1881
1882 out:
1883         pm_runtime_mark_last_busy(ddev->dev);
1884         pm_runtime_put_autosuspend(ddev->dev);
1885         return r;
1886 }
1887
1888
1889 static int ss_power_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
1890                                 uint32_t mask, enum amdgpu_device_attr_states *states)
1891 {
1892         if (!amdgpu_device_supports_smart_shift(adev_to_drm(adev)))
1893                 *states = ATTR_STATE_UNSUPPORTED;
1894
1895         return 0;
1896 }
1897
1898 static int ss_bias_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
1899                                uint32_t mask, enum amdgpu_device_attr_states *states)
1900 {
1901         uint32_t ss_power, size;
1902
1903         if (!amdgpu_device_supports_smart_shift(adev_to_drm(adev)))
1904                 *states = ATTR_STATE_UNSUPPORTED;
1905         else if (amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_APU_SHARE,
1906                  (void *)&ss_power, &size))
1907                 *states = ATTR_STATE_UNSUPPORTED;
1908         else if (amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_SS_DGPU_SHARE,
1909                  (void *)&ss_power, &size))
1910                 *states = ATTR_STATE_UNSUPPORTED;
1911
1912         return 0;
1913 }
1914
1915 static struct amdgpu_device_attr amdgpu_device_attrs[] = {
1916         AMDGPU_DEVICE_ATTR_RW(power_dpm_state,                          ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1917         AMDGPU_DEVICE_ATTR_RW(power_dpm_force_performance_level,        ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1918         AMDGPU_DEVICE_ATTR_RO(pp_num_states,                            ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1919         AMDGPU_DEVICE_ATTR_RO(pp_cur_state,                             ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1920         AMDGPU_DEVICE_ATTR_RW(pp_force_state,                           ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1921         AMDGPU_DEVICE_ATTR_RW(pp_table,                                 ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1922         AMDGPU_DEVICE_ATTR_RW(pp_dpm_sclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1923         AMDGPU_DEVICE_ATTR_RW(pp_dpm_mclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1924         AMDGPU_DEVICE_ATTR_RW(pp_dpm_socclk,                            ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1925         AMDGPU_DEVICE_ATTR_RW(pp_dpm_fclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1926         AMDGPU_DEVICE_ATTR_RW(pp_dpm_vclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1927         AMDGPU_DEVICE_ATTR_RW(pp_dpm_dclk,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1928         AMDGPU_DEVICE_ATTR_RW(pp_dpm_dcefclk,                           ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1929         AMDGPU_DEVICE_ATTR_RW(pp_dpm_pcie,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1930         AMDGPU_DEVICE_ATTR_RW(pp_sclk_od,                               ATTR_FLAG_BASIC),
1931         AMDGPU_DEVICE_ATTR_RW(pp_mclk_od,                               ATTR_FLAG_BASIC),
1932         AMDGPU_DEVICE_ATTR_RW(pp_power_profile_mode,                    ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1933         AMDGPU_DEVICE_ATTR_RW(pp_od_clk_voltage,                        ATTR_FLAG_BASIC),
1934         AMDGPU_DEVICE_ATTR_RO(gpu_busy_percent,                         ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1935         AMDGPU_DEVICE_ATTR_RO(mem_busy_percent,                         ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1936         AMDGPU_DEVICE_ATTR_RO(pcie_bw,                                  ATTR_FLAG_BASIC),
1937         AMDGPU_DEVICE_ATTR_RW(pp_features,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1938         AMDGPU_DEVICE_ATTR_RO(unique_id,                                ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1939         AMDGPU_DEVICE_ATTR_RW(thermal_throttling_logging,               ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1940         AMDGPU_DEVICE_ATTR_RO(gpu_metrics,                              ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
1941         AMDGPU_DEVICE_ATTR_RO(smartshift_apu_power,                     ATTR_FLAG_BASIC,
1942                               .attr_update = ss_power_attr_update),
1943         AMDGPU_DEVICE_ATTR_RO(smartshift_dgpu_power,                    ATTR_FLAG_BASIC,
1944                               .attr_update = ss_power_attr_update),
1945         AMDGPU_DEVICE_ATTR_RW(smartshift_bias,                          ATTR_FLAG_BASIC,
1946                               .attr_update = ss_bias_attr_update),
1947 };
1948
1949 static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
1950                                uint32_t mask, enum amdgpu_device_attr_states *states)
1951 {
1952         struct device_attribute *dev_attr = &attr->dev_attr;
1953         uint32_t mp1_ver = adev->ip_versions[MP1_HWIP][0];
1954         uint32_t gc_ver = adev->ip_versions[GC_HWIP][0];
1955         const char *attr_name = dev_attr->attr.name;
1956
1957         if (!(attr->flags & mask)) {
1958                 *states = ATTR_STATE_UNSUPPORTED;
1959                 return 0;
1960         }
1961
1962 #define DEVICE_ATTR_IS(_name)   (!strcmp(attr_name, #_name))
1963
1964         if (DEVICE_ATTR_IS(pp_dpm_socclk)) {
1965                 if (gc_ver < IP_VERSION(9, 0, 0))
1966                         *states = ATTR_STATE_UNSUPPORTED;
1967         } else if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
1968                 if (gc_ver < IP_VERSION(9, 0, 0) ||
1969                     gc_ver == IP_VERSION(9, 4, 1) ||
1970                     gc_ver == IP_VERSION(9, 4, 2))
1971                         *states = ATTR_STATE_UNSUPPORTED;
1972         } else if (DEVICE_ATTR_IS(pp_dpm_fclk)) {
1973                 if (mp1_ver < IP_VERSION(10, 0, 0))
1974                         *states = ATTR_STATE_UNSUPPORTED;
1975         } else if (DEVICE_ATTR_IS(pp_od_clk_voltage)) {
1976                 *states = ATTR_STATE_UNSUPPORTED;
1977                 if (amdgpu_dpm_is_overdrive_supported(adev))
1978                         *states = ATTR_STATE_SUPPORTED;
1979         } else if (DEVICE_ATTR_IS(mem_busy_percent)) {
1980                 if (adev->flags & AMD_IS_APU || gc_ver == IP_VERSION(9, 0, 1))
1981                         *states = ATTR_STATE_UNSUPPORTED;
1982         } else if (DEVICE_ATTR_IS(pcie_bw)) {
1983                 /* PCIe Perf counters won't work on APU nodes */
1984                 if (adev->flags & AMD_IS_APU)
1985                         *states = ATTR_STATE_UNSUPPORTED;
1986         } else if (DEVICE_ATTR_IS(unique_id)) {
1987                 switch (gc_ver) {
1988                 case IP_VERSION(9, 0, 1):
1989                 case IP_VERSION(9, 4, 0):
1990                 case IP_VERSION(9, 4, 1):
1991                 case IP_VERSION(9, 4, 2):
1992                 case IP_VERSION(10, 3, 0):
1993                 case IP_VERSION(11, 0, 0):
1994                         *states = ATTR_STATE_SUPPORTED;
1995                         break;
1996                 default:
1997                         *states = ATTR_STATE_UNSUPPORTED;
1998                 }
1999         } else if (DEVICE_ATTR_IS(pp_features)) {
2000                 if (adev->flags & AMD_IS_APU || gc_ver < IP_VERSION(9, 0, 0))
2001                         *states = ATTR_STATE_UNSUPPORTED;
2002         } else if (DEVICE_ATTR_IS(gpu_metrics)) {
2003                 if (gc_ver < IP_VERSION(9, 1, 0))
2004                         *states = ATTR_STATE_UNSUPPORTED;
2005         } else if (DEVICE_ATTR_IS(pp_dpm_vclk)) {
2006                 if (!(gc_ver == IP_VERSION(10, 3, 1) ||
2007                       gc_ver == IP_VERSION(10, 3, 0) ||
2008                       gc_ver == IP_VERSION(10, 1, 2) ||
2009                       gc_ver == IP_VERSION(11, 0, 0) ||
2010                       gc_ver == IP_VERSION(11, 0, 2)))
2011                         *states = ATTR_STATE_UNSUPPORTED;
2012         } else if (DEVICE_ATTR_IS(pp_dpm_dclk)) {
2013                 if (!(gc_ver == IP_VERSION(10, 3, 1) ||
2014                       gc_ver == IP_VERSION(10, 3, 0) ||
2015                       gc_ver == IP_VERSION(10, 1, 2) ||
2016                       gc_ver == IP_VERSION(11, 0, 0) ||
2017                       gc_ver == IP_VERSION(11, 0, 2)))
2018                         *states = ATTR_STATE_UNSUPPORTED;
2019         } else if (DEVICE_ATTR_IS(pp_power_profile_mode)) {
2020                 if (amdgpu_dpm_get_power_profile_mode(adev, NULL) == -EOPNOTSUPP)
2021                         *states = ATTR_STATE_UNSUPPORTED;
2022                 else if (gc_ver == IP_VERSION(10, 3, 0) && amdgpu_sriov_vf(adev))
2023                         *states = ATTR_STATE_UNSUPPORTED;
2024         }
2025
2026         switch (gc_ver) {
2027         case IP_VERSION(9, 4, 1):
2028         case IP_VERSION(9, 4, 2):
2029                 /* the Mi series card does not support standalone mclk/socclk/fclk level setting */
2030                 if (DEVICE_ATTR_IS(pp_dpm_mclk) ||
2031                     DEVICE_ATTR_IS(pp_dpm_socclk) ||
2032                     DEVICE_ATTR_IS(pp_dpm_fclk)) {
2033                         dev_attr->attr.mode &= ~S_IWUGO;
2034                         dev_attr->store = NULL;
2035                 }
2036                 break;
2037         case IP_VERSION(10, 3, 0):
2038                 if (DEVICE_ATTR_IS(power_dpm_force_performance_level) &&
2039                     amdgpu_sriov_vf(adev)) {
2040                         dev_attr->attr.mode &= ~0222;
2041                         dev_attr->store = NULL;
2042                 }
2043                 break;
2044         default:
2045                 break;
2046         }
2047
2048         if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
2049                 /* SMU MP1 does not support dcefclk level setting */
2050                 if (gc_ver >= IP_VERSION(10, 0, 0)) {
2051                         dev_attr->attr.mode &= ~S_IWUGO;
2052                         dev_attr->store = NULL;
2053                 }
2054         }
2055
2056         /* setting should not be allowed from VF if not in one VF mode */
2057         if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev)) {
2058                 dev_attr->attr.mode &= ~S_IWUGO;
2059                 dev_attr->store = NULL;
2060         }
2061
2062 #undef DEVICE_ATTR_IS
2063
2064         return 0;
2065 }
2066
2067
2068 static int amdgpu_device_attr_create(struct amdgpu_device *adev,
2069                                      struct amdgpu_device_attr *attr,
2070                                      uint32_t mask, struct list_head *attr_list)
2071 {
2072         int ret = 0;
2073         struct device_attribute *dev_attr = &attr->dev_attr;
2074         const char *name = dev_attr->attr.name;
2075         enum amdgpu_device_attr_states attr_states = ATTR_STATE_SUPPORTED;
2076         struct amdgpu_device_attr_entry *attr_entry;
2077
2078         int (*attr_update)(struct amdgpu_device *adev, struct amdgpu_device_attr *attr,
2079                            uint32_t mask, enum amdgpu_device_attr_states *states) = default_attr_update;
2080
2081         BUG_ON(!attr);
2082
2083         attr_update = attr->attr_update ? attr->attr_update : default_attr_update;
2084
2085         ret = attr_update(adev, attr, mask, &attr_states);
2086         if (ret) {
2087                 dev_err(adev->dev, "failed to update device file %s, ret = %d\n",
2088                         name, ret);
2089                 return ret;
2090         }
2091
2092         if (attr_states == ATTR_STATE_UNSUPPORTED)
2093                 return 0;
2094
2095         ret = device_create_file(adev->dev, dev_attr);
2096         if (ret) {
2097                 dev_err(adev->dev, "failed to create device file %s, ret = %d\n",
2098                         name, ret);
2099         }
2100
2101         attr_entry = kmalloc(sizeof(*attr_entry), GFP_KERNEL);
2102         if (!attr_entry)
2103                 return -ENOMEM;
2104
2105         attr_entry->attr = attr;
2106         INIT_LIST_HEAD(&attr_entry->entry);
2107
2108         list_add_tail(&attr_entry->entry, attr_list);
2109
2110         return ret;
2111 }
2112
2113 static void amdgpu_device_attr_remove(struct amdgpu_device *adev, struct amdgpu_device_attr *attr)
2114 {
2115         struct device_attribute *dev_attr = &attr->dev_attr;
2116
2117         device_remove_file(adev->dev, dev_attr);
2118 }
2119
2120 static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
2121                                              struct list_head *attr_list);
2122
2123 static int amdgpu_device_attr_create_groups(struct amdgpu_device *adev,
2124                                             struct amdgpu_device_attr *attrs,
2125                                             uint32_t counts,
2126                                             uint32_t mask,
2127                                             struct list_head *attr_list)
2128 {
2129         int ret = 0;
2130         uint32_t i = 0;
2131
2132         for (i = 0; i < counts; i++) {
2133                 ret = amdgpu_device_attr_create(adev, &attrs[i], mask, attr_list);
2134                 if (ret)
2135                         goto failed;
2136         }
2137
2138         return 0;
2139
2140 failed:
2141         amdgpu_device_attr_remove_groups(adev, attr_list);
2142
2143         return ret;
2144 }
2145
2146 static void amdgpu_device_attr_remove_groups(struct amdgpu_device *adev,
2147                                              struct list_head *attr_list)
2148 {
2149         struct amdgpu_device_attr_entry *entry, *entry_tmp;
2150
2151         if (list_empty(attr_list))
2152                 return ;
2153
2154         list_for_each_entry_safe(entry, entry_tmp, attr_list, entry) {
2155                 amdgpu_device_attr_remove(adev, entry->attr);
2156                 list_del(&entry->entry);
2157                 kfree(entry);
2158         }
2159 }
2160
2161 static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
2162                                       struct device_attribute *attr,
2163                                       char *buf)
2164 {
2165         struct amdgpu_device *adev = dev_get_drvdata(dev);
2166         int channel = to_sensor_dev_attr(attr)->index;
2167         int r, temp = 0, size = sizeof(temp);
2168
2169         if (amdgpu_in_reset(adev))
2170                 return -EPERM;
2171         if (adev->in_suspend && !adev->in_runpm)
2172                 return -EPERM;
2173
2174         if (channel >= PP_TEMP_MAX)
2175                 return -EINVAL;
2176
2177         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2178         if (r < 0) {
2179                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2180                 return r;
2181         }
2182
2183         switch (channel) {
2184         case PP_TEMP_JUNCTION:
2185                 /* get current junction temperature */
2186                 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_HOTSPOT_TEMP,
2187                                            (void *)&temp, &size);
2188                 break;
2189         case PP_TEMP_EDGE:
2190                 /* get current edge temperature */
2191                 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_EDGE_TEMP,
2192                                            (void *)&temp, &size);
2193                 break;
2194         case PP_TEMP_MEM:
2195                 /* get current memory temperature */
2196                 r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_TEMP,
2197                                            (void *)&temp, &size);
2198                 break;
2199         default:
2200                 r = -EINVAL;
2201                 break;
2202         }
2203
2204         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2205         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2206
2207         if (r)
2208                 return r;
2209
2210         return sysfs_emit(buf, "%d\n", temp);
2211 }
2212
2213 static ssize_t amdgpu_hwmon_show_temp_thresh(struct device *dev,
2214                                              struct device_attribute *attr,
2215                                              char *buf)
2216 {
2217         struct amdgpu_device *adev = dev_get_drvdata(dev);
2218         int hyst = to_sensor_dev_attr(attr)->index;
2219         int temp;
2220
2221         if (hyst)
2222                 temp = adev->pm.dpm.thermal.min_temp;
2223         else
2224                 temp = adev->pm.dpm.thermal.max_temp;
2225
2226         return sysfs_emit(buf, "%d\n", temp);
2227 }
2228
2229 static ssize_t amdgpu_hwmon_show_hotspot_temp_thresh(struct device *dev,
2230                                              struct device_attribute *attr,
2231                                              char *buf)
2232 {
2233         struct amdgpu_device *adev = dev_get_drvdata(dev);
2234         int hyst = to_sensor_dev_attr(attr)->index;
2235         int temp;
2236
2237         if (hyst)
2238                 temp = adev->pm.dpm.thermal.min_hotspot_temp;
2239         else
2240                 temp = adev->pm.dpm.thermal.max_hotspot_crit_temp;
2241
2242         return sysfs_emit(buf, "%d\n", temp);
2243 }
2244
2245 static ssize_t amdgpu_hwmon_show_mem_temp_thresh(struct device *dev,
2246                                              struct device_attribute *attr,
2247                                              char *buf)
2248 {
2249         struct amdgpu_device *adev = dev_get_drvdata(dev);
2250         int hyst = to_sensor_dev_attr(attr)->index;
2251         int temp;
2252
2253         if (hyst)
2254                 temp = adev->pm.dpm.thermal.min_mem_temp;
2255         else
2256                 temp = adev->pm.dpm.thermal.max_mem_crit_temp;
2257
2258         return sysfs_emit(buf, "%d\n", temp);
2259 }
2260
2261 static ssize_t amdgpu_hwmon_show_temp_label(struct device *dev,
2262                                              struct device_attribute *attr,
2263                                              char *buf)
2264 {
2265         int channel = to_sensor_dev_attr(attr)->index;
2266
2267         if (channel >= PP_TEMP_MAX)
2268                 return -EINVAL;
2269
2270         return sysfs_emit(buf, "%s\n", temp_label[channel].label);
2271 }
2272
2273 static ssize_t amdgpu_hwmon_show_temp_emergency(struct device *dev,
2274                                              struct device_attribute *attr,
2275                                              char *buf)
2276 {
2277         struct amdgpu_device *adev = dev_get_drvdata(dev);
2278         int channel = to_sensor_dev_attr(attr)->index;
2279         int temp = 0;
2280
2281         if (channel >= PP_TEMP_MAX)
2282                 return -EINVAL;
2283
2284         switch (channel) {
2285         case PP_TEMP_JUNCTION:
2286                 temp = adev->pm.dpm.thermal.max_hotspot_emergency_temp;
2287                 break;
2288         case PP_TEMP_EDGE:
2289                 temp = adev->pm.dpm.thermal.max_edge_emergency_temp;
2290                 break;
2291         case PP_TEMP_MEM:
2292                 temp = adev->pm.dpm.thermal.max_mem_emergency_temp;
2293                 break;
2294         }
2295
2296         return sysfs_emit(buf, "%d\n", temp);
2297 }
2298
2299 static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
2300                                             struct device_attribute *attr,
2301                                             char *buf)
2302 {
2303         struct amdgpu_device *adev = dev_get_drvdata(dev);
2304         u32 pwm_mode = 0;
2305         int ret;
2306
2307         if (amdgpu_in_reset(adev))
2308                 return -EPERM;
2309         if (adev->in_suspend && !adev->in_runpm)
2310                 return -EPERM;
2311
2312         ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2313         if (ret < 0) {
2314                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2315                 return ret;
2316         }
2317
2318         ret = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
2319
2320         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2321         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2322
2323         if (ret)
2324                 return -EINVAL;
2325
2326         return sysfs_emit(buf, "%u\n", pwm_mode);
2327 }
2328
2329 static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev,
2330                                             struct device_attribute *attr,
2331                                             const char *buf,
2332                                             size_t count)
2333 {
2334         struct amdgpu_device *adev = dev_get_drvdata(dev);
2335         int err, ret;
2336         int value;
2337
2338         if (amdgpu_in_reset(adev))
2339                 return -EPERM;
2340         if (adev->in_suspend && !adev->in_runpm)
2341                 return -EPERM;
2342
2343         err = kstrtoint(buf, 10, &value);
2344         if (err)
2345                 return err;
2346
2347         ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2348         if (ret < 0) {
2349                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2350                 return ret;
2351         }
2352
2353         ret = amdgpu_dpm_set_fan_control_mode(adev, value);
2354
2355         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2356         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2357
2358         if (ret)
2359                 return -EINVAL;
2360
2361         return count;
2362 }
2363
2364 static ssize_t amdgpu_hwmon_get_pwm1_min(struct device *dev,
2365                                          struct device_attribute *attr,
2366                                          char *buf)
2367 {
2368         return sysfs_emit(buf, "%i\n", 0);
2369 }
2370
2371 static ssize_t amdgpu_hwmon_get_pwm1_max(struct device *dev,
2372                                          struct device_attribute *attr,
2373                                          char *buf)
2374 {
2375         return sysfs_emit(buf, "%i\n", 255);
2376 }
2377
2378 static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
2379                                      struct device_attribute *attr,
2380                                      const char *buf, size_t count)
2381 {
2382         struct amdgpu_device *adev = dev_get_drvdata(dev);
2383         int err;
2384         u32 value;
2385         u32 pwm_mode;
2386
2387         if (amdgpu_in_reset(adev))
2388                 return -EPERM;
2389         if (adev->in_suspend && !adev->in_runpm)
2390                 return -EPERM;
2391
2392         err = kstrtou32(buf, 10, &value);
2393         if (err)
2394                 return err;
2395
2396         err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2397         if (err < 0) {
2398                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2399                 return err;
2400         }
2401
2402         err = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
2403         if (err)
2404                 goto out;
2405
2406         if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
2407                 pr_info("manual fan speed control should be enabled first\n");
2408                 err = -EINVAL;
2409                 goto out;
2410         }
2411
2412         err = amdgpu_dpm_set_fan_speed_pwm(adev, value);
2413
2414 out:
2415         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2416         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2417
2418         if (err)
2419                 return err;
2420
2421         return count;
2422 }
2423
2424 static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
2425                                      struct device_attribute *attr,
2426                                      char *buf)
2427 {
2428         struct amdgpu_device *adev = dev_get_drvdata(dev);
2429         int err;
2430         u32 speed = 0;
2431
2432         if (amdgpu_in_reset(adev))
2433                 return -EPERM;
2434         if (adev->in_suspend && !adev->in_runpm)
2435                 return -EPERM;
2436
2437         err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2438         if (err < 0) {
2439                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2440                 return err;
2441         }
2442
2443         err = amdgpu_dpm_get_fan_speed_pwm(adev, &speed);
2444
2445         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2446         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2447
2448         if (err)
2449                 return err;
2450
2451         return sysfs_emit(buf, "%i\n", speed);
2452 }
2453
2454 static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
2455                                            struct device_attribute *attr,
2456                                            char *buf)
2457 {
2458         struct amdgpu_device *adev = dev_get_drvdata(dev);
2459         int err;
2460         u32 speed = 0;
2461
2462         if (amdgpu_in_reset(adev))
2463                 return -EPERM;
2464         if (adev->in_suspend && !adev->in_runpm)
2465                 return -EPERM;
2466
2467         err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2468         if (err < 0) {
2469                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2470                 return err;
2471         }
2472
2473         err = amdgpu_dpm_get_fan_speed_rpm(adev, &speed);
2474
2475         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2476         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2477
2478         if (err)
2479                 return err;
2480
2481         return sysfs_emit(buf, "%i\n", speed);
2482 }
2483
2484 static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev,
2485                                          struct device_attribute *attr,
2486                                          char *buf)
2487 {
2488         struct amdgpu_device *adev = dev_get_drvdata(dev);
2489         u32 min_rpm = 0;
2490         u32 size = sizeof(min_rpm);
2491         int r;
2492
2493         if (amdgpu_in_reset(adev))
2494                 return -EPERM;
2495         if (adev->in_suspend && !adev->in_runpm)
2496                 return -EPERM;
2497
2498         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2499         if (r < 0) {
2500                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2501                 return r;
2502         }
2503
2504         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MIN_FAN_RPM,
2505                                    (void *)&min_rpm, &size);
2506
2507         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2508         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2509
2510         if (r)
2511                 return r;
2512
2513         return sysfs_emit(buf, "%d\n", min_rpm);
2514 }
2515
2516 static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
2517                                          struct device_attribute *attr,
2518                                          char *buf)
2519 {
2520         struct amdgpu_device *adev = dev_get_drvdata(dev);
2521         u32 max_rpm = 0;
2522         u32 size = sizeof(max_rpm);
2523         int r;
2524
2525         if (amdgpu_in_reset(adev))
2526                 return -EPERM;
2527         if (adev->in_suspend && !adev->in_runpm)
2528                 return -EPERM;
2529
2530         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2531         if (r < 0) {
2532                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2533                 return r;
2534         }
2535
2536         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MAX_FAN_RPM,
2537                                    (void *)&max_rpm, &size);
2538
2539         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2540         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2541
2542         if (r)
2543                 return r;
2544
2545         return sysfs_emit(buf, "%d\n", max_rpm);
2546 }
2547
2548 static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
2549                                            struct device_attribute *attr,
2550                                            char *buf)
2551 {
2552         struct amdgpu_device *adev = dev_get_drvdata(dev);
2553         int err;
2554         u32 rpm = 0;
2555
2556         if (amdgpu_in_reset(adev))
2557                 return -EPERM;
2558         if (adev->in_suspend && !adev->in_runpm)
2559                 return -EPERM;
2560
2561         err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2562         if (err < 0) {
2563                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2564                 return err;
2565         }
2566
2567         err = amdgpu_dpm_get_fan_speed_rpm(adev, &rpm);
2568
2569         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2570         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2571
2572         if (err)
2573                 return err;
2574
2575         return sysfs_emit(buf, "%i\n", rpm);
2576 }
2577
2578 static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
2579                                      struct device_attribute *attr,
2580                                      const char *buf, size_t count)
2581 {
2582         struct amdgpu_device *adev = dev_get_drvdata(dev);
2583         int err;
2584         u32 value;
2585         u32 pwm_mode;
2586
2587         if (amdgpu_in_reset(adev))
2588                 return -EPERM;
2589         if (adev->in_suspend && !adev->in_runpm)
2590                 return -EPERM;
2591
2592         err = kstrtou32(buf, 10, &value);
2593         if (err)
2594                 return err;
2595
2596         err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2597         if (err < 0) {
2598                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2599                 return err;
2600         }
2601
2602         err = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
2603         if (err)
2604                 goto out;
2605
2606         if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
2607                 err = -ENODATA;
2608                 goto out;
2609         }
2610
2611         err = amdgpu_dpm_set_fan_speed_rpm(adev, value);
2612
2613 out:
2614         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2615         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2616
2617         if (err)
2618                 return err;
2619
2620         return count;
2621 }
2622
2623 static ssize_t amdgpu_hwmon_get_fan1_enable(struct device *dev,
2624                                             struct device_attribute *attr,
2625                                             char *buf)
2626 {
2627         struct amdgpu_device *adev = dev_get_drvdata(dev);
2628         u32 pwm_mode = 0;
2629         int ret;
2630
2631         if (amdgpu_in_reset(adev))
2632                 return -EPERM;
2633         if (adev->in_suspend && !adev->in_runpm)
2634                 return -EPERM;
2635
2636         ret = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2637         if (ret < 0) {
2638                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2639                 return ret;
2640         }
2641
2642         ret = amdgpu_dpm_get_fan_control_mode(adev, &pwm_mode);
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 (ret)
2648                 return -EINVAL;
2649
2650         return sysfs_emit(buf, "%i\n", pwm_mode == AMD_FAN_CTRL_AUTO ? 0 : 1);
2651 }
2652
2653 static ssize_t amdgpu_hwmon_set_fan1_enable(struct device *dev,
2654                                             struct device_attribute *attr,
2655                                             const char *buf,
2656                                             size_t count)
2657 {
2658         struct amdgpu_device *adev = dev_get_drvdata(dev);
2659         int err;
2660         int value;
2661         u32 pwm_mode;
2662
2663         if (amdgpu_in_reset(adev))
2664                 return -EPERM;
2665         if (adev->in_suspend && !adev->in_runpm)
2666                 return -EPERM;
2667
2668         err = kstrtoint(buf, 10, &value);
2669         if (err)
2670                 return err;
2671
2672         if (value == 0)
2673                 pwm_mode = AMD_FAN_CTRL_AUTO;
2674         else if (value == 1)
2675                 pwm_mode = AMD_FAN_CTRL_MANUAL;
2676         else
2677                 return -EINVAL;
2678
2679         err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2680         if (err < 0) {
2681                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2682                 return err;
2683         }
2684
2685         err = amdgpu_dpm_set_fan_control_mode(adev, pwm_mode);
2686
2687         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2688         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2689
2690         if (err)
2691                 return -EINVAL;
2692
2693         return count;
2694 }
2695
2696 static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev,
2697                                         struct device_attribute *attr,
2698                                         char *buf)
2699 {
2700         struct amdgpu_device *adev = dev_get_drvdata(dev);
2701         u32 vddgfx;
2702         int r, size = sizeof(vddgfx);
2703
2704         if (amdgpu_in_reset(adev))
2705                 return -EPERM;
2706         if (adev->in_suspend && !adev->in_runpm)
2707                 return -EPERM;
2708
2709         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2710         if (r < 0) {
2711                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2712                 return r;
2713         }
2714
2715         /* get the voltage */
2716         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX,
2717                                    (void *)&vddgfx, &size);
2718
2719         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2720         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2721
2722         if (r)
2723                 return r;
2724
2725         return sysfs_emit(buf, "%d\n", vddgfx);
2726 }
2727
2728 static ssize_t amdgpu_hwmon_show_vddgfx_label(struct device *dev,
2729                                               struct device_attribute *attr,
2730                                               char *buf)
2731 {
2732         return sysfs_emit(buf, "vddgfx\n");
2733 }
2734
2735 static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
2736                                        struct device_attribute *attr,
2737                                        char *buf)
2738 {
2739         struct amdgpu_device *adev = dev_get_drvdata(dev);
2740         u32 vddnb;
2741         int r, size = sizeof(vddnb);
2742
2743         if (amdgpu_in_reset(adev))
2744                 return -EPERM;
2745         if (adev->in_suspend && !adev->in_runpm)
2746                 return -EPERM;
2747
2748         /* only APUs have vddnb */
2749         if  (!(adev->flags & AMD_IS_APU))
2750                 return -EINVAL;
2751
2752         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2753         if (r < 0) {
2754                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2755                 return r;
2756         }
2757
2758         /* get the voltage */
2759         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB,
2760                                    (void *)&vddnb, &size);
2761
2762         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2763         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2764
2765         if (r)
2766                 return r;
2767
2768         return sysfs_emit(buf, "%d\n", vddnb);
2769 }
2770
2771 static ssize_t amdgpu_hwmon_show_vddnb_label(struct device *dev,
2772                                               struct device_attribute *attr,
2773                                               char *buf)
2774 {
2775         return sysfs_emit(buf, "vddnb\n");
2776 }
2777
2778 static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
2779                                            struct device_attribute *attr,
2780                                            char *buf)
2781 {
2782         struct amdgpu_device *adev = dev_get_drvdata(dev);
2783         u32 query = 0;
2784         int r, size = sizeof(u32);
2785         unsigned uw;
2786
2787         if (amdgpu_in_reset(adev))
2788                 return -EPERM;
2789         if (adev->in_suspend && !adev->in_runpm)
2790                 return -EPERM;
2791
2792         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2793         if (r < 0) {
2794                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2795                 return r;
2796         }
2797
2798         /* get the voltage */
2799         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER,
2800                                    (void *)&query, &size);
2801
2802         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2803         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2804
2805         if (r)
2806                 return r;
2807
2808         /* convert to microwatts */
2809         uw = (query >> 8) * 1000000 + (query & 0xff) * 1000;
2810
2811         return sysfs_emit(buf, "%u\n", uw);
2812 }
2813
2814 static ssize_t amdgpu_hwmon_show_power_cap_min(struct device *dev,
2815                                          struct device_attribute *attr,
2816                                          char *buf)
2817 {
2818         return sysfs_emit(buf, "%i\n", 0);
2819 }
2820
2821
2822 static ssize_t amdgpu_hwmon_show_power_cap_generic(struct device *dev,
2823                                         struct device_attribute *attr,
2824                                         char *buf,
2825                                         enum pp_power_limit_level pp_limit_level)
2826 {
2827         struct amdgpu_device *adev = dev_get_drvdata(dev);
2828         enum pp_power_type power_type = to_sensor_dev_attr(attr)->index;
2829         uint32_t limit;
2830         ssize_t size;
2831         int r;
2832
2833         if (amdgpu_in_reset(adev))
2834                 return -EPERM;
2835         if (adev->in_suspend && !adev->in_runpm)
2836                 return -EPERM;
2837
2838         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2839         if (r < 0) {
2840                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2841                 return r;
2842         }
2843
2844         r = amdgpu_dpm_get_power_limit(adev, &limit,
2845                                       pp_limit_level, power_type);
2846
2847         if (!r)
2848                 size = sysfs_emit(buf, "%u\n", limit * 1000000);
2849         else
2850                 size = sysfs_emit(buf, "\n");
2851
2852         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2853         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2854
2855         return size;
2856 }
2857
2858
2859 static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
2860                                          struct device_attribute *attr,
2861                                          char *buf)
2862 {
2863         return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_MAX);
2864
2865 }
2866
2867 static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
2868                                          struct device_attribute *attr,
2869                                          char *buf)
2870 {
2871         return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_CURRENT);
2872
2873 }
2874
2875 static ssize_t amdgpu_hwmon_show_power_cap_default(struct device *dev,
2876                                          struct device_attribute *attr,
2877                                          char *buf)
2878 {
2879         return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_DEFAULT);
2880
2881 }
2882
2883 static ssize_t amdgpu_hwmon_show_power_label(struct device *dev,
2884                                          struct device_attribute *attr,
2885                                          char *buf)
2886 {
2887         struct amdgpu_device *adev = dev_get_drvdata(dev);
2888         uint32_t gc_ver = adev->ip_versions[GC_HWIP][0];
2889
2890         if (gc_ver == IP_VERSION(10, 3, 1))
2891                 return sysfs_emit(buf, "%s\n",
2892                                   to_sensor_dev_attr(attr)->index == PP_PWR_TYPE_FAST ?
2893                                   "fastPPT" : "slowPPT");
2894         else
2895                 return sysfs_emit(buf, "PPT\n");
2896 }
2897
2898 static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
2899                 struct device_attribute *attr,
2900                 const char *buf,
2901                 size_t count)
2902 {
2903         struct amdgpu_device *adev = dev_get_drvdata(dev);
2904         int limit_type = to_sensor_dev_attr(attr)->index;
2905         int err;
2906         u32 value;
2907
2908         if (amdgpu_in_reset(adev))
2909                 return -EPERM;
2910         if (adev->in_suspend && !adev->in_runpm)
2911                 return -EPERM;
2912
2913         if (amdgpu_sriov_vf(adev))
2914                 return -EINVAL;
2915
2916         err = kstrtou32(buf, 10, &value);
2917         if (err)
2918                 return err;
2919
2920         value = value / 1000000; /* convert to Watt */
2921         value |= limit_type << 24;
2922
2923         err = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2924         if (err < 0) {
2925                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2926                 return err;
2927         }
2928
2929         err = amdgpu_dpm_set_power_limit(adev, value);
2930
2931         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2932         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2933
2934         if (err)
2935                 return err;
2936
2937         return count;
2938 }
2939
2940 static ssize_t amdgpu_hwmon_show_sclk(struct device *dev,
2941                                       struct device_attribute *attr,
2942                                       char *buf)
2943 {
2944         struct amdgpu_device *adev = dev_get_drvdata(dev);
2945         uint32_t sclk;
2946         int r, size = sizeof(sclk);
2947
2948         if (amdgpu_in_reset(adev))
2949                 return -EPERM;
2950         if (adev->in_suspend && !adev->in_runpm)
2951                 return -EPERM;
2952
2953         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2954         if (r < 0) {
2955                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2956                 return r;
2957         }
2958
2959         /* get the sclk */
2960         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_SCLK,
2961                                    (void *)&sclk, &size);
2962
2963         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
2964         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2965
2966         if (r)
2967                 return r;
2968
2969         return sysfs_emit(buf, "%u\n", sclk * 10 * 1000);
2970 }
2971
2972 static ssize_t amdgpu_hwmon_show_sclk_label(struct device *dev,
2973                                             struct device_attribute *attr,
2974                                             char *buf)
2975 {
2976         return sysfs_emit(buf, "sclk\n");
2977 }
2978
2979 static ssize_t amdgpu_hwmon_show_mclk(struct device *dev,
2980                                       struct device_attribute *attr,
2981                                       char *buf)
2982 {
2983         struct amdgpu_device *adev = dev_get_drvdata(dev);
2984         uint32_t mclk;
2985         int r, size = sizeof(mclk);
2986
2987         if (amdgpu_in_reset(adev))
2988                 return -EPERM;
2989         if (adev->in_suspend && !adev->in_runpm)
2990                 return -EPERM;
2991
2992         r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
2993         if (r < 0) {
2994                 pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
2995                 return r;
2996         }
2997
2998         /* get the sclk */
2999         r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_MCLK,
3000                                    (void *)&mclk, &size);
3001
3002         pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
3003         pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
3004
3005         if (r)
3006                 return r;
3007
3008         return sysfs_emit(buf, "%u\n", mclk * 10 * 1000);
3009 }
3010
3011 static ssize_t amdgpu_hwmon_show_mclk_label(struct device *dev,
3012                                             struct device_attribute *attr,
3013                                             char *buf)
3014 {
3015         return sysfs_emit(buf, "mclk\n");
3016 }
3017
3018 /**
3019  * DOC: hwmon
3020  *
3021  * The amdgpu driver exposes the following sensor interfaces:
3022  *
3023  * - GPU temperature (via the on-die sensor)
3024  *
3025  * - GPU voltage
3026  *
3027  * - Northbridge voltage (APUs only)
3028  *
3029  * - GPU power
3030  *
3031  * - GPU fan
3032  *
3033  * - GPU gfx/compute engine clock
3034  *
3035  * - GPU memory clock (dGPU only)
3036  *
3037  * hwmon interfaces for GPU temperature:
3038  *
3039  * - temp[1-3]_input: the on die GPU temperature in millidegrees Celsius
3040  *   - temp2_input and temp3_input are supported on SOC15 dGPUs only
3041  *
3042  * - temp[1-3]_label: temperature channel label
3043  *   - temp2_label and temp3_label are supported on SOC15 dGPUs only
3044  *
3045  * - temp[1-3]_crit: temperature critical max value in millidegrees Celsius
3046  *   - temp2_crit and temp3_crit are supported on SOC15 dGPUs only
3047  *
3048  * - temp[1-3]_crit_hyst: temperature hysteresis for critical limit in millidegrees Celsius
3049  *   - temp2_crit_hyst and temp3_crit_hyst are supported on SOC15 dGPUs only
3050  *
3051  * - temp[1-3]_emergency: temperature emergency max value(asic shutdown) in millidegrees Celsius
3052  *   - these are supported on SOC15 dGPUs only
3053  *
3054  * hwmon interfaces for GPU voltage:
3055  *
3056  * - in0_input: the voltage on the GPU in millivolts
3057  *
3058  * - in1_input: the voltage on the Northbridge in millivolts
3059  *
3060  * hwmon interfaces for GPU power:
3061  *
3062  * - power1_average: average power used by the GPU in microWatts
3063  *
3064  * - power1_cap_min: minimum cap supported in microWatts
3065  *
3066  * - power1_cap_max: maximum cap supported in microWatts
3067  *
3068  * - power1_cap: selected power cap in microWatts
3069  *
3070  * hwmon interfaces for GPU fan:
3071  *
3072  * - pwm1: pulse width modulation fan level (0-255)
3073  *
3074  * - 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)
3075  *
3076  * - pwm1_min: pulse width modulation fan control minimum level (0)
3077  *
3078  * - pwm1_max: pulse width modulation fan control maximum level (255)
3079  *
3080  * - fan1_min: a minimum value Unit: revolution/min (RPM)
3081  *
3082  * - fan1_max: a maximum value Unit: revolution/max (RPM)
3083  *
3084  * - fan1_input: fan speed in RPM
3085  *
3086  * - fan[1-\*]_target: Desired fan speed Unit: revolution/min (RPM)
3087  *
3088  * - fan[1-\*]_enable: Enable or disable the sensors.1: Enable 0: Disable
3089  *
3090  * NOTE: DO NOT set the fan speed via "pwm1" and "fan[1-\*]_target" interfaces at the same time.
3091  *       That will get the former one overridden.
3092  *
3093  * hwmon interfaces for GPU clocks:
3094  *
3095  * - freq1_input: the gfx/compute clock in hertz
3096  *
3097  * - freq2_input: the memory clock in hertz
3098  *
3099  * You can use hwmon tools like sensors to view this information on your system.
3100  *
3101  */
3102
3103 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_EDGE);
3104 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 0);
3105 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 1);
3106 static SENSOR_DEVICE_ATTR(temp1_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_EDGE);
3107 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_JUNCTION);
3108 static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, amdgpu_hwmon_show_hotspot_temp_thresh, NULL, 0);
3109 static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, amdgpu_hwmon_show_hotspot_temp_thresh, NULL, 1);
3110 static SENSOR_DEVICE_ATTR(temp2_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_JUNCTION);
3111 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, PP_TEMP_MEM);
3112 static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO, amdgpu_hwmon_show_mem_temp_thresh, NULL, 0);
3113 static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, amdgpu_hwmon_show_mem_temp_thresh, NULL, 1);
3114 static SENSOR_DEVICE_ATTR(temp3_emergency, S_IRUGO, amdgpu_hwmon_show_temp_emergency, NULL, PP_TEMP_MEM);
3115 static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_EDGE);
3116 static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_JUNCTION);
3117 static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, amdgpu_hwmon_show_temp_label, NULL, PP_TEMP_MEM);
3118 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1, amdgpu_hwmon_set_pwm1, 0);
3119 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_pwm1_enable, amdgpu_hwmon_set_pwm1_enable, 0);
3120 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, amdgpu_hwmon_get_pwm1_min, NULL, 0);
3121 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, amdgpu_hwmon_get_pwm1_max, NULL, 0);
3122 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, amdgpu_hwmon_get_fan1_input, NULL, 0);
3123 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, amdgpu_hwmon_get_fan1_min, NULL, 0);
3124 static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, amdgpu_hwmon_get_fan1_max, NULL, 0);
3125 static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_target, amdgpu_hwmon_set_fan1_target, 0);
3126 static SENSOR_DEVICE_ATTR(fan1_enable, S_IRUGO | S_IWUSR, amdgpu_hwmon_get_fan1_enable, amdgpu_hwmon_set_fan1_enable, 0);
3127 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, amdgpu_hwmon_show_vddgfx, NULL, 0);
3128 static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, amdgpu_hwmon_show_vddgfx_label, NULL, 0);
3129 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, amdgpu_hwmon_show_vddnb, NULL, 0);
3130 static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, amdgpu_hwmon_show_vddnb_label, NULL, 0);
3131 static SENSOR_DEVICE_ATTR(power1_average, S_IRUGO, amdgpu_hwmon_show_power_avg, NULL, 0);
3132 static SENSOR_DEVICE_ATTR(power1_cap_max, S_IRUGO, amdgpu_hwmon_show_power_cap_max, NULL, 0);
3133 static SENSOR_DEVICE_ATTR(power1_cap_min, S_IRUGO, amdgpu_hwmon_show_power_cap_min, NULL, 0);
3134 static SENSOR_DEVICE_ATTR(power1_cap, S_IRUGO | S_IWUSR, amdgpu_hwmon_show_power_cap, amdgpu_hwmon_set_power_cap, 0);
3135 static SENSOR_DEVICE_ATTR(power1_cap_default, S_IRUGO, amdgpu_hwmon_show_power_cap_default, NULL, 0);
3136 static SENSOR_DEVICE_ATTR(power1_label, S_IRUGO, amdgpu_hwmon_show_power_label, NULL, 0);
3137 static SENSOR_DEVICE_ATTR(power2_average, S_IRUGO, amdgpu_hwmon_show_power_avg, NULL, 1);
3138 static SENSOR_DEVICE_ATTR(power2_cap_max, S_IRUGO, amdgpu_hwmon_show_power_cap_max, NULL, 1);
3139 static SENSOR_DEVICE_ATTR(power2_cap_min, S_IRUGO, amdgpu_hwmon_show_power_cap_min, NULL, 1);
3140 static SENSOR_DEVICE_ATTR(power2_cap, S_IRUGO | S_IWUSR, amdgpu_hwmon_show_power_cap, amdgpu_hwmon_set_power_cap, 1);
3141 static SENSOR_DEVICE_ATTR(power2_cap_default, S_IRUGO, amdgpu_hwmon_show_power_cap_default, NULL, 1);
3142 static SENSOR_DEVICE_ATTR(power2_label, S_IRUGO, amdgpu_hwmon_show_power_label, NULL, 1);
3143 static SENSOR_DEVICE_ATTR(freq1_input, S_IRUGO, amdgpu_hwmon_show_sclk, NULL, 0);
3144 static SENSOR_DEVICE_ATTR(freq1_label, S_IRUGO, amdgpu_hwmon_show_sclk_label, NULL, 0);
3145 static SENSOR_DEVICE_ATTR(freq2_input, S_IRUGO, amdgpu_hwmon_show_mclk, NULL, 0);
3146 static SENSOR_DEVICE_ATTR(freq2_label, S_IRUGO, amdgpu_hwmon_show_mclk_label, NULL, 0);
3147
3148 static struct attribute *hwmon_attributes[] = {
3149         &sensor_dev_attr_temp1_input.dev_attr.attr,
3150         &sensor_dev_attr_temp1_crit.dev_attr.attr,
3151         &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
3152         &sensor_dev_attr_temp2_input.dev_attr.attr,
3153         &sensor_dev_attr_temp2_crit.dev_attr.attr,
3154         &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
3155         &sensor_dev_attr_temp3_input.dev_attr.attr,
3156         &sensor_dev_attr_temp3_crit.dev_attr.attr,
3157         &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
3158         &sensor_dev_attr_temp1_emergency.dev_attr.attr,
3159         &sensor_dev_attr_temp2_emergency.dev_attr.attr,
3160         &sensor_dev_attr_temp3_emergency.dev_attr.attr,
3161         &sensor_dev_attr_temp1_label.dev_attr.attr,
3162         &sensor_dev_attr_temp2_label.dev_attr.attr,
3163         &sensor_dev_attr_temp3_label.dev_attr.attr,
3164         &sensor_dev_attr_pwm1.dev_attr.attr,
3165         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
3166         &sensor_dev_attr_pwm1_min.dev_attr.attr,
3167         &sensor_dev_attr_pwm1_max.dev_attr.attr,
3168         &sensor_dev_attr_fan1_input.dev_attr.attr,
3169         &sensor_dev_attr_fan1_min.dev_attr.attr,
3170         &sensor_dev_attr_fan1_max.dev_attr.attr,
3171         &sensor_dev_attr_fan1_target.dev_attr.attr,
3172         &sensor_dev_attr_fan1_enable.dev_attr.attr,
3173         &sensor_dev_attr_in0_input.dev_attr.attr,
3174         &sensor_dev_attr_in0_label.dev_attr.attr,
3175         &sensor_dev_attr_in1_input.dev_attr.attr,
3176         &sensor_dev_attr_in1_label.dev_attr.attr,
3177         &sensor_dev_attr_power1_average.dev_attr.attr,
3178         &sensor_dev_attr_power1_cap_max.dev_attr.attr,
3179         &sensor_dev_attr_power1_cap_min.dev_attr.attr,
3180         &sensor_dev_attr_power1_cap.dev_attr.attr,
3181         &sensor_dev_attr_power1_cap_default.dev_attr.attr,
3182         &sensor_dev_attr_power1_label.dev_attr.attr,
3183         &sensor_dev_attr_power2_average.dev_attr.attr,
3184         &sensor_dev_attr_power2_cap_max.dev_attr.attr,
3185         &sensor_dev_attr_power2_cap_min.dev_attr.attr,
3186         &sensor_dev_attr_power2_cap.dev_attr.attr,
3187         &sensor_dev_attr_power2_cap_default.dev_attr.attr,
3188         &sensor_dev_attr_power2_label.dev_attr.attr,
3189         &sensor_dev_attr_freq1_input.dev_attr.attr,
3190         &sensor_dev_attr_freq1_label.dev_attr.attr,
3191         &sensor_dev_attr_freq2_input.dev_attr.attr,
3192         &sensor_dev_attr_freq2_label.dev_attr.attr,
3193         NULL
3194 };
3195
3196 static umode_t hwmon_attributes_visible(struct kobject *kobj,
3197                                         struct attribute *attr, int index)
3198 {
3199         struct device *dev = kobj_to_dev(kobj);
3200         struct amdgpu_device *adev = dev_get_drvdata(dev);
3201         umode_t effective_mode = attr->mode;
3202         uint32_t gc_ver = adev->ip_versions[GC_HWIP][0];
3203
3204         /* under multi-vf mode, the hwmon attributes are all not supported */
3205         if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev))
3206                 return 0;
3207
3208         /* under pp one vf mode manage of hwmon attributes is not supported */
3209         if (amdgpu_sriov_is_pp_one_vf(adev))
3210                 effective_mode &= ~S_IWUSR;
3211
3212         /* Skip fan attributes if fan is not present */
3213         if (adev->pm.no_fan && (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3214             attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3215             attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3216             attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3217             attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3218             attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3219             attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3220             attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3221             attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3222                 return 0;
3223
3224         /* Skip fan attributes on APU */
3225         if ((adev->flags & AMD_IS_APU) &&
3226             (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3227              attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3228              attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3229              attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3230              attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3231              attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3232              attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3233              attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3234              attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3235                 return 0;
3236
3237         /* Skip crit temp on APU */
3238         if ((adev->flags & AMD_IS_APU) && (adev->family >= AMDGPU_FAMILY_CZ) &&
3239             (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
3240              attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr))
3241                 return 0;
3242
3243         /* Skip limit attributes if DPM is not enabled */
3244         if (!adev->pm.dpm_enabled &&
3245             (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
3246              attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
3247              attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
3248              attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
3249              attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3250              attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
3251              attr == &sensor_dev_attr_fan1_input.dev_attr.attr ||
3252              attr == &sensor_dev_attr_fan1_min.dev_attr.attr ||
3253              attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3254              attr == &sensor_dev_attr_fan1_target.dev_attr.attr ||
3255              attr == &sensor_dev_attr_fan1_enable.dev_attr.attr))
3256                 return 0;
3257
3258         /* mask fan attributes if we have no bindings for this asic to expose */
3259         if (((amdgpu_dpm_get_fan_speed_pwm(adev, NULL) == -EOPNOTSUPP) &&
3260               attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */
3261             ((amdgpu_dpm_get_fan_control_mode(adev, NULL) == -EOPNOTSUPP) &&
3262              attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */
3263                 effective_mode &= ~S_IRUGO;
3264
3265         if (((amdgpu_dpm_set_fan_speed_pwm(adev, U32_MAX) == -EOPNOTSUPP) &&
3266               attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */
3267               ((amdgpu_dpm_set_fan_control_mode(adev, U32_MAX) == -EOPNOTSUPP) &&
3268               attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */
3269                 effective_mode &= ~S_IWUSR;
3270
3271         /* not implemented yet for GC 10.3.1 APUs */
3272         if (((adev->family == AMDGPU_FAMILY_SI) ||
3273              ((adev->flags & AMD_IS_APU) && (gc_ver != IP_VERSION(10, 3, 1)))) &&
3274             (attr == &sensor_dev_attr_power1_cap_max.dev_attr.attr ||
3275              attr == &sensor_dev_attr_power1_cap_min.dev_attr.attr ||
3276              attr == &sensor_dev_attr_power1_cap.dev_attr.attr ||
3277              attr == &sensor_dev_attr_power1_cap_default.dev_attr.attr))
3278                 return 0;
3279
3280         /* not implemented yet for APUs having <= GC 9.3.0 */
3281         if (((adev->family == AMDGPU_FAMILY_SI) ||
3282              ((adev->flags & AMD_IS_APU) && (gc_ver < IP_VERSION(9, 3, 0)))) &&
3283             (attr == &sensor_dev_attr_power1_average.dev_attr.attr))
3284                 return 0;
3285
3286         /* hide max/min values if we can't both query and manage the fan */
3287         if (((amdgpu_dpm_set_fan_speed_pwm(adev, U32_MAX) == -EOPNOTSUPP) &&
3288               (amdgpu_dpm_get_fan_speed_pwm(adev, NULL) == -EOPNOTSUPP) &&
3289               (amdgpu_dpm_set_fan_speed_rpm(adev, U32_MAX) == -EOPNOTSUPP) &&
3290               (amdgpu_dpm_get_fan_speed_rpm(adev, NULL) == -EOPNOTSUPP)) &&
3291             (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
3292              attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
3293                 return 0;
3294
3295         if ((amdgpu_dpm_set_fan_speed_rpm(adev, U32_MAX) == -EOPNOTSUPP) &&
3296              (amdgpu_dpm_get_fan_speed_rpm(adev, NULL) == -EOPNOTSUPP) &&
3297              (attr == &sensor_dev_attr_fan1_max.dev_attr.attr ||
3298              attr == &sensor_dev_attr_fan1_min.dev_attr.attr))
3299                 return 0;
3300
3301         if ((adev->family == AMDGPU_FAMILY_SI ||        /* not implemented yet */
3302              adev->family == AMDGPU_FAMILY_KV) &&       /* not implemented yet */
3303             (attr == &sensor_dev_attr_in0_input.dev_attr.attr ||
3304              attr == &sensor_dev_attr_in0_label.dev_attr.attr))
3305                 return 0;
3306
3307         /* only APUs have vddnb */
3308         if (!(adev->flags & AMD_IS_APU) &&
3309             (attr == &sensor_dev_attr_in1_input.dev_attr.attr ||
3310              attr == &sensor_dev_attr_in1_label.dev_attr.attr))
3311                 return 0;
3312
3313         /* no mclk on APUs */
3314         if ((adev->flags & AMD_IS_APU) &&
3315             (attr == &sensor_dev_attr_freq2_input.dev_attr.attr ||
3316              attr == &sensor_dev_attr_freq2_label.dev_attr.attr))
3317                 return 0;
3318
3319         /* only SOC15 dGPUs support hotspot and mem temperatures */
3320         if (((adev->flags & AMD_IS_APU) || gc_ver < IP_VERSION(9, 0, 0)) &&
3321             (attr == &sensor_dev_attr_temp2_crit.dev_attr.attr ||
3322              attr == &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr ||
3323              attr == &sensor_dev_attr_temp3_crit.dev_attr.attr ||
3324              attr == &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr ||
3325              attr == &sensor_dev_attr_temp1_emergency.dev_attr.attr ||
3326              attr == &sensor_dev_attr_temp2_emergency.dev_attr.attr ||
3327              attr == &sensor_dev_attr_temp3_emergency.dev_attr.attr ||
3328              attr == &sensor_dev_attr_temp2_input.dev_attr.attr ||
3329              attr == &sensor_dev_attr_temp3_input.dev_attr.attr ||
3330              attr == &sensor_dev_attr_temp2_label.dev_attr.attr ||
3331              attr == &sensor_dev_attr_temp3_label.dev_attr.attr))
3332                 return 0;
3333
3334         /* only Vangogh has fast PPT limit and power labels */
3335         if (!(gc_ver == IP_VERSION(10, 3, 1)) &&
3336             (attr == &sensor_dev_attr_power2_average.dev_attr.attr ||
3337              attr == &sensor_dev_attr_power2_cap_max.dev_attr.attr ||
3338              attr == &sensor_dev_attr_power2_cap_min.dev_attr.attr ||
3339              attr == &sensor_dev_attr_power2_cap.dev_attr.attr ||
3340              attr == &sensor_dev_attr_power2_cap_default.dev_attr.attr ||
3341              attr == &sensor_dev_attr_power2_label.dev_attr.attr))
3342                 return 0;
3343
3344         return effective_mode;
3345 }
3346
3347 static const struct attribute_group hwmon_attrgroup = {
3348         .attrs = hwmon_attributes,
3349         .is_visible = hwmon_attributes_visible,
3350 };
3351
3352 static const struct attribute_group *hwmon_groups[] = {
3353         &hwmon_attrgroup,
3354         NULL
3355 };
3356
3357 int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
3358 {
3359         int ret;
3360         uint32_t mask = 0;
3361
3362         if (adev->pm.sysfs_initialized)
3363                 return 0;
3364
3365         if (adev->pm.dpm_enabled == 0)
3366                 return 0;
3367
3368         INIT_LIST_HEAD(&adev->pm.pm_attr_list);
3369
3370         adev->pm.int_hwmon_dev = hwmon_device_register_with_groups(adev->dev,
3371                                                                    DRIVER_NAME, adev,
3372                                                                    hwmon_groups);
3373         if (IS_ERR(adev->pm.int_hwmon_dev)) {
3374                 ret = PTR_ERR(adev->pm.int_hwmon_dev);
3375                 dev_err(adev->dev,
3376                         "Unable to register hwmon device: %d\n", ret);
3377                 return ret;
3378         }
3379
3380         switch (amdgpu_virt_get_sriov_vf_mode(adev)) {
3381         case SRIOV_VF_MODE_ONE_VF:
3382                 mask = ATTR_FLAG_ONEVF;
3383                 break;
3384         case SRIOV_VF_MODE_MULTI_VF:
3385                 mask = 0;
3386                 break;
3387         case SRIOV_VF_MODE_BARE_METAL:
3388         default:
3389                 mask = ATTR_FLAG_MASK_ALL;
3390                 break;
3391         }
3392
3393         ret = amdgpu_device_attr_create_groups(adev,
3394                                                amdgpu_device_attrs,
3395                                                ARRAY_SIZE(amdgpu_device_attrs),
3396                                                mask,
3397                                                &adev->pm.pm_attr_list);
3398         if (ret)
3399                 return ret;
3400
3401         adev->pm.sysfs_initialized = true;
3402
3403         return 0;
3404 }
3405
3406 void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev)
3407 {
3408         if (adev->pm.dpm_enabled == 0)
3409                 return;
3410
3411         if (adev->pm.int_hwmon_dev)
3412                 hwmon_device_unregister(adev->pm.int_hwmon_dev);
3413
3414         amdgpu_device_attr_remove_groups(adev, &adev->pm.pm_attr_list);
3415 }
3416
3417 /*
3418  * Debugfs info
3419  */
3420 #if defined(CONFIG_DEBUG_FS)
3421
3422 static void amdgpu_debugfs_prints_cpu_info(struct seq_file *m,
3423                                            struct amdgpu_device *adev) {
3424         uint16_t *p_val;
3425         uint32_t size;
3426         int i;
3427         uint32_t num_cpu_cores = amdgpu_dpm_get_num_cpu_cores(adev);
3428
3429         if (amdgpu_dpm_is_cclk_dpm_supported(adev)) {
3430                 p_val = kcalloc(num_cpu_cores, sizeof(uint16_t),
3431                                 GFP_KERNEL);
3432
3433                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_CPU_CLK,
3434                                             (void *)p_val, &size)) {
3435                         for (i = 0; i < num_cpu_cores; i++)
3436                                 seq_printf(m, "\t%u MHz (CPU%d)\n",
3437                                            *(p_val + i), i);
3438                 }
3439
3440                 kfree(p_val);
3441         }
3442 }
3443
3444 static int amdgpu_debugfs_pm_info_pp(struct seq_file *m, struct amdgpu_device *adev)
3445 {
3446         uint32_t mp1_ver = adev->ip_versions[MP1_HWIP][0];
3447         uint32_t gc_ver = adev->ip_versions[GC_HWIP][0];
3448         uint32_t value;
3449         uint64_t value64 = 0;
3450         uint32_t query = 0;
3451         int size;
3452
3453         /* GPU Clocks */
3454         size = sizeof(value);
3455         seq_printf(m, "GFX Clocks and Power:\n");
3456
3457         amdgpu_debugfs_prints_cpu_info(m, adev);
3458
3459         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_MCLK, (void *)&value, &size))
3460                 seq_printf(m, "\t%u MHz (MCLK)\n", value/100);
3461         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_SCLK, (void *)&value, &size))
3462                 seq_printf(m, "\t%u MHz (SCLK)\n", value/100);
3463         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK, (void *)&value, &size))
3464                 seq_printf(m, "\t%u MHz (PSTATE_SCLK)\n", value/100);
3465         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK, (void *)&value, &size))
3466                 seq_printf(m, "\t%u MHz (PSTATE_MCLK)\n", value/100);
3467         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX, (void *)&value, &size))
3468                 seq_printf(m, "\t%u mV (VDDGFX)\n", value);
3469         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB, (void *)&value, &size))
3470                 seq_printf(m, "\t%u mV (VDDNB)\n", value);
3471         size = sizeof(uint32_t);
3472         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER, (void *)&query, &size))
3473                 seq_printf(m, "\t%u.%u W (average GPU)\n", query >> 8, query & 0xff);
3474         size = sizeof(value);
3475         seq_printf(m, "\n");
3476
3477         /* GPU Temp */
3478         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP, (void *)&value, &size))
3479                 seq_printf(m, "GPU Temperature: %u C\n", value/1000);
3480
3481         /* GPU Load */
3482         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD, (void *)&value, &size))
3483                 seq_printf(m, "GPU Load: %u %%\n", value);
3484         /* MEM Load */
3485         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_LOAD, (void *)&value, &size))
3486                 seq_printf(m, "MEM Load: %u %%\n", value);
3487
3488         seq_printf(m, "\n");
3489
3490         /* SMC feature mask */
3491         if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_ENABLED_SMC_FEATURES_MASK, (void *)&value64, &size))
3492                 seq_printf(m, "SMC Feature Mask: 0x%016llx\n", value64);
3493
3494         /* ASICs greater than CHIP_VEGA20 supports these sensors */
3495         if (gc_ver != IP_VERSION(9, 4, 0) && mp1_ver > IP_VERSION(9, 0, 0)) {
3496                 /* VCN clocks */
3497                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCN_POWER_STATE, (void *)&value, &size)) {
3498                         if (!value) {
3499                                 seq_printf(m, "VCN: Disabled\n");
3500                         } else {
3501                                 seq_printf(m, "VCN: Enabled\n");
3502                                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_DCLK, (void *)&value, &size))
3503                                         seq_printf(m, "\t%u MHz (DCLK)\n", value/100);
3504                                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_VCLK, (void *)&value, &size))
3505                                         seq_printf(m, "\t%u MHz (VCLK)\n", value/100);
3506                         }
3507                 }
3508                 seq_printf(m, "\n");
3509         } else {
3510                 /* UVD clocks */
3511                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_POWER, (void *)&value, &size)) {
3512                         if (!value) {
3513                                 seq_printf(m, "UVD: Disabled\n");
3514                         } else {
3515                                 seq_printf(m, "UVD: Enabled\n");
3516                                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_DCLK, (void *)&value, &size))
3517                                         seq_printf(m, "\t%u MHz (DCLK)\n", value/100);
3518                                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_UVD_VCLK, (void *)&value, &size))
3519                                         seq_printf(m, "\t%u MHz (VCLK)\n", value/100);
3520                         }
3521                 }
3522                 seq_printf(m, "\n");
3523
3524                 /* VCE clocks */
3525                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_POWER, (void *)&value, &size)) {
3526                         if (!value) {
3527                                 seq_printf(m, "VCE: Disabled\n");
3528                         } else {
3529                                 seq_printf(m, "VCE: Enabled\n");
3530                                 if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VCE_ECCLK, (void *)&value, &size))
3531                                         seq_printf(m, "\t%u MHz (ECCLK)\n", value/100);
3532                         }
3533                 }
3534         }
3535
3536         return 0;
3537 }
3538
3539 static void amdgpu_parse_cg_state(struct seq_file *m, u64 flags)
3540 {
3541         int i;
3542
3543         for (i = 0; clocks[i].flag; i++)
3544                 seq_printf(m, "\t%s: %s\n", clocks[i].name,
3545                            (flags & clocks[i].flag) ? "On" : "Off");
3546 }
3547
3548 static int amdgpu_debugfs_pm_info_show(struct seq_file *m, void *unused)
3549 {
3550         struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
3551         struct drm_device *dev = adev_to_drm(adev);
3552         u64 flags = 0;
3553         int r;
3554
3555         if (amdgpu_in_reset(adev))
3556                 return -EPERM;
3557         if (adev->in_suspend && !adev->in_runpm)
3558                 return -EPERM;
3559
3560         r = pm_runtime_get_sync(dev->dev);
3561         if (r < 0) {
3562                 pm_runtime_put_autosuspend(dev->dev);
3563                 return r;
3564         }
3565
3566         if (amdgpu_dpm_debugfs_print_current_performance_level(adev, m)) {
3567                 r = amdgpu_debugfs_pm_info_pp(m, adev);
3568                 if (r)
3569                         goto out;
3570         }
3571
3572         amdgpu_device_ip_get_clockgating_state(adev, &flags);
3573
3574         seq_printf(m, "Clock Gating Flags Mask: 0x%llx\n", flags);
3575         amdgpu_parse_cg_state(m, flags);
3576         seq_printf(m, "\n");
3577
3578 out:
3579         pm_runtime_mark_last_busy(dev->dev);
3580         pm_runtime_put_autosuspend(dev->dev);
3581
3582         return r;
3583 }
3584
3585 DEFINE_SHOW_ATTRIBUTE(amdgpu_debugfs_pm_info);
3586
3587 /*
3588  * amdgpu_pm_priv_buffer_read - Read memory region allocated to FW
3589  *
3590  * Reads debug memory region allocated to PMFW
3591  */
3592 static ssize_t amdgpu_pm_prv_buffer_read(struct file *f, char __user *buf,
3593                                          size_t size, loff_t *pos)
3594 {
3595         struct amdgpu_device *adev = file_inode(f)->i_private;
3596         size_t smu_prv_buf_size;
3597         void *smu_prv_buf;
3598         int ret = 0;
3599
3600         if (amdgpu_in_reset(adev))
3601                 return -EPERM;
3602         if (adev->in_suspend && !adev->in_runpm)
3603                 return -EPERM;
3604
3605         ret = amdgpu_dpm_get_smu_prv_buf_details(adev, &smu_prv_buf, &smu_prv_buf_size);
3606         if (ret)
3607                 return ret;
3608
3609         if (!smu_prv_buf || !smu_prv_buf_size)
3610                 return -EINVAL;
3611
3612         return simple_read_from_buffer(buf, size, pos, smu_prv_buf,
3613                                        smu_prv_buf_size);
3614 }
3615
3616 static const struct file_operations amdgpu_debugfs_pm_prv_buffer_fops = {
3617         .owner = THIS_MODULE,
3618         .open = simple_open,
3619         .read = amdgpu_pm_prv_buffer_read,
3620         .llseek = default_llseek,
3621 };
3622
3623 #endif
3624
3625 void amdgpu_debugfs_pm_init(struct amdgpu_device *adev)
3626 {
3627 #if defined(CONFIG_DEBUG_FS)
3628         struct drm_minor *minor = adev_to_drm(adev)->primary;
3629         struct dentry *root = minor->debugfs_root;
3630
3631         if (!adev->pm.dpm_enabled)
3632                 return;
3633
3634         debugfs_create_file("amdgpu_pm_info", 0444, root, adev,
3635                             &amdgpu_debugfs_pm_info_fops);
3636
3637         if (adev->pm.smu_prv_buffer_size > 0)
3638                 debugfs_create_file_size("amdgpu_pm_prv_buffer", 0444, root,
3639                                          adev,
3640                                          &amdgpu_debugfs_pm_prv_buffer_fops,
3641                                          adev->pm.smu_prv_buffer_size);
3642
3643         amdgpu_dpm_stb_debug_fs_init(adev);
3644 #endif
3645 }