1 /* 2 * Permission is hereby granted, free of charge, to any person obtaining a 3 * copy of this software and associated documentation files (the "Software"), 4 * to deal in the Software without restriction, including without limitation 5 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 6 * and/or sell copies of the Software, and to permit persons to whom the 7 * Software is furnished to do so, subject to the following conditions: 8 * 9 * The above copyright notice and this permission notice shall be included in 10 * all copies or substantial portions of the Software. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 15 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 16 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 17 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 18 * OTHER DEALINGS IN THE SOFTWARE. 19 * 20 * Authors: Rafał Miłecki <zajec5@gmail.com> 21 * Alex Deucher <alexdeucher@gmail.com> 22 */ 23 24 #include <linux/hwmon-sysfs.h> 25 #include <linux/hwmon.h> 26 #include <linux/pci.h> 27 #include <linux/power_supply.h> 28 29 #include <drm/drm_vblank.h> 30 31 #include "atom.h" 32 #include "avivod.h" 33 #include "r600_dpm.h" 34 #include "radeon.h" 35 #include "radeon_pm.h" 36 37 #define RADEON_IDLE_LOOP_MS 100 38 #define RADEON_RECLOCK_DELAY_MS 200 39 #define RADEON_WAIT_VBLANK_TIMEOUT 200 40 41 static const char *radeon_pm_state_type_name[5] = { 42 "", 43 "Powersave", 44 "Battery", 45 "Balanced", 46 "Performance", 47 }; 48 49 static void radeon_dynpm_idle_work_handler(struct work_struct *work); 50 static void radeon_debugfs_pm_init(struct radeon_device *rdev); 51 static bool radeon_pm_in_vbl(struct radeon_device *rdev); 52 static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish); 53 static void radeon_pm_update_profile(struct radeon_device *rdev); 54 static void radeon_pm_set_clocks(struct radeon_device *rdev); 55 56 int radeon_pm_get_type_index(struct radeon_device *rdev, 57 enum radeon_pm_state_type ps_type, 58 int instance) 59 { 60 int i; 61 int found_instance = -1; 62 63 for (i = 0; i < rdev->pm.num_power_states; i++) { 64 if (rdev->pm.power_state[i].type == ps_type) { 65 found_instance++; 66 if (found_instance == instance) 67 return i; 68 } 69 } 70 /* return default if no match */ 71 return rdev->pm.default_power_state_index; 72 } 73 74 void radeon_pm_acpi_event_handler(struct radeon_device *rdev) 75 { 76 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { 77 mutex_lock(&rdev->pm.mutex); 78 if (power_supply_is_system_supplied() > 0) 79 rdev->pm.dpm.ac_power = true; 80 else 81 rdev->pm.dpm.ac_power = false; 82 if (rdev->family == CHIP_ARUBA) { 83 if (rdev->asic->dpm.enable_bapm) 84 radeon_dpm_enable_bapm(rdev, rdev->pm.dpm.ac_power); 85 } 86 mutex_unlock(&rdev->pm.mutex); 87 } else if (rdev->pm.pm_method == PM_METHOD_PROFILE) { 88 if (rdev->pm.profile == PM_PROFILE_AUTO) { 89 mutex_lock(&rdev->pm.mutex); 90 radeon_pm_update_profile(rdev); 91 radeon_pm_set_clocks(rdev); 92 mutex_unlock(&rdev->pm.mutex); 93 } 94 } 95 } 96 97 static void radeon_pm_update_profile(struct radeon_device *rdev) 98 { 99 switch (rdev->pm.profile) { 100 case PM_PROFILE_DEFAULT: 101 rdev->pm.profile_index = PM_PROFILE_DEFAULT_IDX; 102 break; 103 case PM_PROFILE_AUTO: 104 if (power_supply_is_system_supplied() > 0) { 105 if (rdev->pm.active_crtc_count > 1) 106 rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX; 107 else 108 rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX; 109 } else { 110 if (rdev->pm.active_crtc_count > 1) 111 rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX; 112 else 113 rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX; 114 } 115 break; 116 case PM_PROFILE_LOW: 117 if (rdev->pm.active_crtc_count > 1) 118 rdev->pm.profile_index = PM_PROFILE_LOW_MH_IDX; 119 else 120 rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX; 121 break; 122 case PM_PROFILE_MID: 123 if (rdev->pm.active_crtc_count > 1) 124 rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX; 125 else 126 rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX; 127 break; 128 case PM_PROFILE_HIGH: 129 if (rdev->pm.active_crtc_count > 1) 130 rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX; 131 else 132 rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX; 133 break; 134 } 135 136 if (rdev->pm.active_crtc_count == 0) { 137 rdev->pm.requested_power_state_index = 138 rdev->pm.profiles[rdev->pm.profile_index].dpms_off_ps_idx; 139 rdev->pm.requested_clock_mode_index = 140 rdev->pm.profiles[rdev->pm.profile_index].dpms_off_cm_idx; 141 } else { 142 rdev->pm.requested_power_state_index = 143 rdev->pm.profiles[rdev->pm.profile_index].dpms_on_ps_idx; 144 rdev->pm.requested_clock_mode_index = 145 rdev->pm.profiles[rdev->pm.profile_index].dpms_on_cm_idx; 146 } 147 } 148 149 static void radeon_unmap_vram_bos(struct radeon_device *rdev) 150 { 151 struct radeon_bo *bo, *n; 152 153 if (list_empty(&rdev->gem.objects)) 154 return; 155 156 list_for_each_entry_safe(bo, n, &rdev->gem.objects, list) { 157 if (bo->tbo.resource->mem_type == TTM_PL_VRAM) 158 ttm_bo_unmap_virtual(&bo->tbo); 159 } 160 } 161 162 static void radeon_sync_with_vblank(struct radeon_device *rdev) 163 { 164 if (rdev->pm.active_crtcs) { 165 rdev->pm.vblank_sync = false; 166 wait_event_timeout( 167 rdev->irq.vblank_queue, rdev->pm.vblank_sync, 168 msecs_to_jiffies(RADEON_WAIT_VBLANK_TIMEOUT)); 169 } 170 } 171 172 static void radeon_set_power_state(struct radeon_device *rdev) 173 { 174 u32 sclk, mclk; 175 bool misc_after = false; 176 177 if ((rdev->pm.requested_clock_mode_index == rdev->pm.current_clock_mode_index) && 178 (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index)) 179 return; 180 181 if (radeon_gui_idle(rdev)) { 182 sclk = rdev->pm.power_state[rdev->pm.requested_power_state_index]. 183 clock_info[rdev->pm.requested_clock_mode_index].sclk; 184 if (sclk > rdev->pm.default_sclk) 185 sclk = rdev->pm.default_sclk; 186 187 /* starting with BTC, there is one state that is used for both 188 * MH and SH. Difference is that we always use the high clock index for 189 * mclk and vddci. 190 */ 191 if ((rdev->pm.pm_method == PM_METHOD_PROFILE) && 192 (rdev->family >= CHIP_BARTS) && 193 rdev->pm.active_crtc_count && 194 ((rdev->pm.profile_index == PM_PROFILE_MID_MH_IDX) || 195 (rdev->pm.profile_index == PM_PROFILE_LOW_MH_IDX))) 196 mclk = rdev->pm.power_state[rdev->pm.requested_power_state_index]. 197 clock_info[rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx].mclk; 198 else 199 mclk = rdev->pm.power_state[rdev->pm.requested_power_state_index]. 200 clock_info[rdev->pm.requested_clock_mode_index].mclk; 201 202 if (mclk > rdev->pm.default_mclk) 203 mclk = rdev->pm.default_mclk; 204 205 /* upvolt before raising clocks, downvolt after lowering clocks */ 206 if (sclk < rdev->pm.current_sclk) 207 misc_after = true; 208 209 radeon_sync_with_vblank(rdev); 210 211 if (rdev->pm.pm_method == PM_METHOD_DYNPM) { 212 if (!radeon_pm_in_vbl(rdev)) 213 return; 214 } 215 216 radeon_pm_prepare(rdev); 217 218 if (!misc_after) 219 /* voltage, pcie lanes, etc.*/ 220 radeon_pm_misc(rdev); 221 222 /* set engine clock */ 223 if (sclk != rdev->pm.current_sclk) { 224 radeon_pm_debug_check_in_vbl(rdev, false); 225 radeon_set_engine_clock(rdev, sclk); 226 radeon_pm_debug_check_in_vbl(rdev, true); 227 rdev->pm.current_sclk = sclk; 228 DRM_DEBUG_DRIVER("Setting: e: %d\n", sclk); 229 } 230 231 /* set memory clock */ 232 if (rdev->asic->pm.set_memory_clock && (mclk != rdev->pm.current_mclk)) { 233 radeon_pm_debug_check_in_vbl(rdev, false); 234 radeon_set_memory_clock(rdev, mclk); 235 radeon_pm_debug_check_in_vbl(rdev, true); 236 rdev->pm.current_mclk = mclk; 237 DRM_DEBUG_DRIVER("Setting: m: %d\n", mclk); 238 } 239 240 if (misc_after) 241 /* voltage, pcie lanes, etc.*/ 242 radeon_pm_misc(rdev); 243 244 radeon_pm_finish(rdev); 245 246 rdev->pm.current_power_state_index = rdev->pm.requested_power_state_index; 247 rdev->pm.current_clock_mode_index = rdev->pm.requested_clock_mode_index; 248 } else 249 DRM_DEBUG_DRIVER("pm: GUI not idle!!!\n"); 250 } 251 252 static void radeon_pm_set_clocks(struct radeon_device *rdev) 253 { 254 struct drm_crtc *crtc; 255 int i, r; 256 257 /* no need to take locks, etc. if nothing's going to change */ 258 if ((rdev->pm.requested_clock_mode_index == rdev->pm.current_clock_mode_index) && 259 (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index)) 260 return; 261 262 down_write(&rdev->pm.mclk_lock); 263 mutex_lock(&rdev->ring_lock); 264 265 /* wait for the rings to drain */ 266 for (i = 0; i < RADEON_NUM_RINGS; i++) { 267 struct radeon_ring *ring = &rdev->ring[i]; 268 if (!ring->ready) { 269 continue; 270 } 271 r = radeon_fence_wait_empty(rdev, i); 272 if (r) { 273 /* needs a GPU reset dont reset here */ 274 mutex_unlock(&rdev->ring_lock); 275 up_write(&rdev->pm.mclk_lock); 276 return; 277 } 278 } 279 280 radeon_unmap_vram_bos(rdev); 281 282 if (rdev->irq.installed) { 283 i = 0; 284 drm_for_each_crtc(crtc, rdev->ddev) { 285 if (rdev->pm.active_crtcs & (1 << i)) { 286 /* This can fail if a modeset is in progress */ 287 if (drm_crtc_vblank_get(crtc) == 0) 288 rdev->pm.req_vblank |= (1 << i); 289 else 290 DRM_DEBUG_DRIVER("crtc %d no vblank, can glitch\n", 291 i); 292 } 293 i++; 294 } 295 } 296 297 radeon_set_power_state(rdev); 298 299 if (rdev->irq.installed) { 300 i = 0; 301 drm_for_each_crtc(crtc, rdev->ddev) { 302 if (rdev->pm.req_vblank & (1 << i)) { 303 rdev->pm.req_vblank &= ~(1 << i); 304 drm_crtc_vblank_put(crtc); 305 } 306 i++; 307 } 308 } 309 310 /* update display watermarks based on new power state */ 311 radeon_update_bandwidth_info(rdev); 312 if (rdev->pm.active_crtc_count) 313 radeon_bandwidth_update(rdev); 314 315 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; 316 317 mutex_unlock(&rdev->ring_lock); 318 up_write(&rdev->pm.mclk_lock); 319 } 320 321 static void radeon_pm_print_states(struct radeon_device *rdev) 322 { 323 int i, j; 324 struct radeon_power_state *power_state; 325 struct radeon_pm_clock_info *clock_info; 326 327 DRM_DEBUG_DRIVER("%d Power State(s)\n", rdev->pm.num_power_states); 328 for (i = 0; i < rdev->pm.num_power_states; i++) { 329 power_state = &rdev->pm.power_state[i]; 330 DRM_DEBUG_DRIVER("State %d: %s\n", i, 331 radeon_pm_state_type_name[power_state->type]); 332 if (i == rdev->pm.default_power_state_index) 333 DRM_DEBUG_DRIVER("\tDefault"); 334 if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP)) 335 DRM_DEBUG_DRIVER("\t%d PCIE Lanes\n", power_state->pcie_lanes); 336 if (power_state->flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY) 337 DRM_DEBUG_DRIVER("\tSingle display only\n"); 338 DRM_DEBUG_DRIVER("\t%d Clock Mode(s)\n", power_state->num_clock_modes); 339 for (j = 0; j < power_state->num_clock_modes; j++) { 340 clock_info = &(power_state->clock_info[j]); 341 if (rdev->flags & RADEON_IS_IGP) 342 DRM_DEBUG_DRIVER("\t\t%d e: %d\n", 343 j, 344 clock_info->sclk * 10); 345 else 346 DRM_DEBUG_DRIVER("\t\t%d e: %d\tm: %d\tv: %d\n", 347 j, 348 clock_info->sclk * 10, 349 clock_info->mclk * 10, 350 clock_info->voltage.voltage); 351 } 352 } 353 } 354 355 static ssize_t radeon_get_pm_profile(struct device *dev, 356 struct device_attribute *attr, 357 char *buf) 358 { 359 struct drm_device *ddev = dev_get_drvdata(dev); 360 struct radeon_device *rdev = ddev->dev_private; 361 int cp = rdev->pm.profile; 362 363 return sysfs_emit(buf, "%s\n", (cp == PM_PROFILE_AUTO) ? "auto" : 364 (cp == PM_PROFILE_LOW) ? "low" : 365 (cp == PM_PROFILE_MID) ? "mid" : 366 (cp == PM_PROFILE_HIGH) ? "high" : "default"); 367 } 368 369 static ssize_t radeon_set_pm_profile(struct device *dev, 370 struct device_attribute *attr, 371 const char *buf, 372 size_t count) 373 { 374 struct drm_device *ddev = dev_get_drvdata(dev); 375 struct radeon_device *rdev = ddev->dev_private; 376 377 /* Can't set profile when the card is off */ 378 if ((rdev->flags & RADEON_IS_PX) && 379 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) 380 return -EINVAL; 381 382 mutex_lock(&rdev->pm.mutex); 383 if (rdev->pm.pm_method == PM_METHOD_PROFILE) { 384 if (strncmp("default", buf, strlen("default")) == 0) 385 rdev->pm.profile = PM_PROFILE_DEFAULT; 386 else if (strncmp("auto", buf, strlen("auto")) == 0) 387 rdev->pm.profile = PM_PROFILE_AUTO; 388 else if (strncmp("low", buf, strlen("low")) == 0) 389 rdev->pm.profile = PM_PROFILE_LOW; 390 else if (strncmp("mid", buf, strlen("mid")) == 0) 391 rdev->pm.profile = PM_PROFILE_MID; 392 else if (strncmp("high", buf, strlen("high")) == 0) 393 rdev->pm.profile = PM_PROFILE_HIGH; 394 else { 395 count = -EINVAL; 396 goto fail; 397 } 398 radeon_pm_update_profile(rdev); 399 radeon_pm_set_clocks(rdev); 400 } else 401 count = -EINVAL; 402 403 fail: 404 mutex_unlock(&rdev->pm.mutex); 405 406 return count; 407 } 408 409 static ssize_t radeon_get_pm_method(struct device *dev, 410 struct device_attribute *attr, 411 char *buf) 412 { 413 struct drm_device *ddev = dev_get_drvdata(dev); 414 struct radeon_device *rdev = ddev->dev_private; 415 int pm = rdev->pm.pm_method; 416 417 return sysfs_emit(buf, "%s\n", (pm == PM_METHOD_DYNPM) ? "dynpm" : 418 (pm == PM_METHOD_PROFILE) ? "profile" : "dpm"); 419 } 420 421 static ssize_t radeon_set_pm_method(struct device *dev, 422 struct device_attribute *attr, 423 const char *buf, 424 size_t count) 425 { 426 struct drm_device *ddev = dev_get_drvdata(dev); 427 struct radeon_device *rdev = ddev->dev_private; 428 429 /* Can't set method when the card is off */ 430 if ((rdev->flags & RADEON_IS_PX) && 431 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) { 432 count = -EINVAL; 433 goto fail; 434 } 435 436 /* we don't support the legacy modes with dpm */ 437 if (rdev->pm.pm_method == PM_METHOD_DPM) { 438 count = -EINVAL; 439 goto fail; 440 } 441 442 if (strncmp("dynpm", buf, strlen("dynpm")) == 0) { 443 mutex_lock(&rdev->pm.mutex); 444 rdev->pm.pm_method = PM_METHOD_DYNPM; 445 rdev->pm.dynpm_state = DYNPM_STATE_PAUSED; 446 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT; 447 mutex_unlock(&rdev->pm.mutex); 448 } else if (strncmp("profile", buf, strlen("profile")) == 0) { 449 mutex_lock(&rdev->pm.mutex); 450 /* disable dynpm */ 451 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED; 452 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; 453 rdev->pm.pm_method = PM_METHOD_PROFILE; 454 mutex_unlock(&rdev->pm.mutex); 455 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work); 456 } else { 457 count = -EINVAL; 458 goto fail; 459 } 460 radeon_pm_compute_clocks(rdev); 461 fail: 462 return count; 463 } 464 465 static ssize_t radeon_get_dpm_state(struct device *dev, 466 struct device_attribute *attr, 467 char *buf) 468 { 469 struct drm_device *ddev = dev_get_drvdata(dev); 470 struct radeon_device *rdev = ddev->dev_private; 471 enum radeon_pm_state_type pm = rdev->pm.dpm.user_state; 472 473 return sysfs_emit(buf, "%s\n", 474 (pm == POWER_STATE_TYPE_BATTERY) ? "battery" : 475 (pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance"); 476 } 477 478 static ssize_t radeon_set_dpm_state(struct device *dev, 479 struct device_attribute *attr, 480 const char *buf, 481 size_t count) 482 { 483 struct drm_device *ddev = dev_get_drvdata(dev); 484 struct radeon_device *rdev = ddev->dev_private; 485 486 mutex_lock(&rdev->pm.mutex); 487 if (strncmp("battery", buf, strlen("battery")) == 0) 488 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BATTERY; 489 else if (strncmp("balanced", buf, strlen("balanced")) == 0) 490 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED; 491 else if (strncmp("performance", buf, strlen("performance")) == 0) 492 rdev->pm.dpm.user_state = POWER_STATE_TYPE_PERFORMANCE; 493 else { 494 mutex_unlock(&rdev->pm.mutex); 495 count = -EINVAL; 496 goto fail; 497 } 498 mutex_unlock(&rdev->pm.mutex); 499 500 /* Can't set dpm state when the card is off */ 501 if (!(rdev->flags & RADEON_IS_PX) || 502 (ddev->switch_power_state == DRM_SWITCH_POWER_ON)) 503 radeon_pm_compute_clocks(rdev); 504 505 fail: 506 return count; 507 } 508 509 static ssize_t radeon_get_dpm_forced_performance_level(struct device *dev, 510 struct device_attribute *attr, 511 char *buf) 512 { 513 struct drm_device *ddev = dev_get_drvdata(dev); 514 struct radeon_device *rdev = ddev->dev_private; 515 enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level; 516 517 if ((rdev->flags & RADEON_IS_PX) && 518 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) 519 return sysfs_emit(buf, "off\n"); 520 521 return sysfs_emit(buf, "%s\n", 522 (level == RADEON_DPM_FORCED_LEVEL_AUTO) ? "auto" : 523 (level == RADEON_DPM_FORCED_LEVEL_LOW) ? "low" : "high"); 524 } 525 526 static ssize_t radeon_set_dpm_forced_performance_level(struct device *dev, 527 struct device_attribute *attr, 528 const char *buf, 529 size_t count) 530 { 531 struct drm_device *ddev = dev_get_drvdata(dev); 532 struct radeon_device *rdev = ddev->dev_private; 533 enum radeon_dpm_forced_level level; 534 int ret = 0; 535 536 /* Can't force performance level when the card is off */ 537 if ((rdev->flags & RADEON_IS_PX) && 538 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) 539 return -EINVAL; 540 541 mutex_lock(&rdev->pm.mutex); 542 if (strncmp("low", buf, strlen("low")) == 0) { 543 level = RADEON_DPM_FORCED_LEVEL_LOW; 544 } else if (strncmp("high", buf, strlen("high")) == 0) { 545 level = RADEON_DPM_FORCED_LEVEL_HIGH; 546 } else if (strncmp("auto", buf, strlen("auto")) == 0) { 547 level = RADEON_DPM_FORCED_LEVEL_AUTO; 548 } else { 549 count = -EINVAL; 550 goto fail; 551 } 552 if (rdev->asic->dpm.force_performance_level) { 553 if (rdev->pm.dpm.thermal_active) { 554 count = -EINVAL; 555 goto fail; 556 } 557 ret = radeon_dpm_force_performance_level(rdev, level); 558 if (ret) 559 count = -EINVAL; 560 } 561 fail: 562 mutex_unlock(&rdev->pm.mutex); 563 564 return count; 565 } 566 567 static ssize_t radeon_hwmon_get_pwm1_enable(struct device *dev, 568 struct device_attribute *attr, 569 char *buf) 570 { 571 struct radeon_device *rdev = dev_get_drvdata(dev); 572 u32 pwm_mode = 0; 573 574 if (rdev->asic->dpm.fan_ctrl_get_mode) 575 pwm_mode = rdev->asic->dpm.fan_ctrl_get_mode(rdev); 576 577 /* never 0 (full-speed), fuse or smc-controlled always */ 578 return sprintf(buf, "%i\n", pwm_mode == FDO_PWM_MODE_STATIC ? 1 : 2); 579 } 580 581 static ssize_t radeon_hwmon_set_pwm1_enable(struct device *dev, 582 struct device_attribute *attr, 583 const char *buf, 584 size_t count) 585 { 586 struct radeon_device *rdev = dev_get_drvdata(dev); 587 int err; 588 int value; 589 590 if(!rdev->asic->dpm.fan_ctrl_set_mode) 591 return -EINVAL; 592 593 err = kstrtoint(buf, 10, &value); 594 if (err) 595 return err; 596 597 switch (value) { 598 case 1: /* manual, percent-based */ 599 rdev->asic->dpm.fan_ctrl_set_mode(rdev, FDO_PWM_MODE_STATIC); 600 break; 601 default: /* disable */ 602 rdev->asic->dpm.fan_ctrl_set_mode(rdev, 0); 603 break; 604 } 605 606 return count; 607 } 608 609 static ssize_t radeon_hwmon_get_pwm1_min(struct device *dev, 610 struct device_attribute *attr, 611 char *buf) 612 { 613 return sprintf(buf, "%i\n", 0); 614 } 615 616 static ssize_t radeon_hwmon_get_pwm1_max(struct device *dev, 617 struct device_attribute *attr, 618 char *buf) 619 { 620 return sprintf(buf, "%i\n", 255); 621 } 622 623 static ssize_t radeon_hwmon_set_pwm1(struct device *dev, 624 struct device_attribute *attr, 625 const char *buf, size_t count) 626 { 627 struct radeon_device *rdev = dev_get_drvdata(dev); 628 int err; 629 u32 value; 630 631 err = kstrtou32(buf, 10, &value); 632 if (err) 633 return err; 634 635 value = (value * 100) / 255; 636 637 err = rdev->asic->dpm.set_fan_speed_percent(rdev, value); 638 if (err) 639 return err; 640 641 return count; 642 } 643 644 static ssize_t radeon_hwmon_get_pwm1(struct device *dev, 645 struct device_attribute *attr, 646 char *buf) 647 { 648 struct radeon_device *rdev = dev_get_drvdata(dev); 649 int err; 650 u32 speed; 651 652 err = rdev->asic->dpm.get_fan_speed_percent(rdev, &speed); 653 if (err) 654 return err; 655 656 speed = (speed * 255) / 100; 657 658 return sprintf(buf, "%i\n", speed); 659 } 660 661 static DEVICE_ATTR(power_profile, S_IRUGO | S_IWUSR, radeon_get_pm_profile, radeon_set_pm_profile); 662 static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon_set_pm_method); 663 static DEVICE_ATTR(power_dpm_state, S_IRUGO | S_IWUSR, radeon_get_dpm_state, radeon_set_dpm_state); 664 static DEVICE_ATTR(power_dpm_force_performance_level, S_IRUGO | S_IWUSR, 665 radeon_get_dpm_forced_performance_level, 666 radeon_set_dpm_forced_performance_level); 667 668 static ssize_t radeon_hwmon_show_temp(struct device *dev, 669 struct device_attribute *attr, 670 char *buf) 671 { 672 struct radeon_device *rdev = dev_get_drvdata(dev); 673 struct drm_device *ddev = rdev->ddev; 674 int temp; 675 676 /* Can't get temperature when the card is off */ 677 if ((rdev->flags & RADEON_IS_PX) && 678 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) 679 return -EINVAL; 680 681 if (rdev->asic->pm.get_temperature) 682 temp = radeon_get_temperature(rdev); 683 else 684 temp = 0; 685 686 return sysfs_emit(buf, "%d\n", temp); 687 } 688 689 static ssize_t radeon_hwmon_show_temp_thresh(struct device *dev, 690 struct device_attribute *attr, 691 char *buf) 692 { 693 struct radeon_device *rdev = dev_get_drvdata(dev); 694 int hyst = to_sensor_dev_attr(attr)->index; 695 int temp; 696 697 if (hyst) 698 temp = rdev->pm.dpm.thermal.min_temp; 699 else 700 temp = rdev->pm.dpm.thermal.max_temp; 701 702 return sysfs_emit(buf, "%d\n", temp); 703 } 704 705 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, radeon_hwmon_show_temp, NULL, 0); 706 static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 0); 707 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 1); 708 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, radeon_hwmon_get_pwm1, radeon_hwmon_set_pwm1, 0); 709 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, radeon_hwmon_get_pwm1_enable, radeon_hwmon_set_pwm1_enable, 0); 710 static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO, radeon_hwmon_get_pwm1_min, NULL, 0); 711 static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO, radeon_hwmon_get_pwm1_max, NULL, 0); 712 713 static ssize_t radeon_hwmon_show_sclk(struct device *dev, 714 struct device_attribute *attr, char *buf) 715 { 716 struct radeon_device *rdev = dev_get_drvdata(dev); 717 struct drm_device *ddev = rdev->ddev; 718 u32 sclk = 0; 719 720 /* Can't get clock frequency when the card is off */ 721 if ((rdev->flags & RADEON_IS_PX) && 722 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) 723 return -EINVAL; 724 725 if (rdev->asic->dpm.get_current_sclk) 726 sclk = radeon_dpm_get_current_sclk(rdev); 727 728 /* Value returned by dpm is in 10 KHz units, need to convert it into Hz 729 for hwmon */ 730 sclk *= 10000; 731 732 return sysfs_emit(buf, "%u\n", sclk); 733 } 734 735 static SENSOR_DEVICE_ATTR(freq1_input, S_IRUGO, radeon_hwmon_show_sclk, NULL, 736 0); 737 738 static ssize_t radeon_hwmon_show_vddc(struct device *dev, 739 struct device_attribute *attr, char *buf) 740 { 741 struct radeon_device *rdev = dev_get_drvdata(dev); 742 struct drm_device *ddev = rdev->ddev; 743 u16 vddc = 0; 744 745 /* Can't get vddc when the card is off */ 746 if ((rdev->flags & RADEON_IS_PX) && 747 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) 748 return -EINVAL; 749 750 if (rdev->asic->dpm.get_current_vddc) 751 vddc = rdev->asic->dpm.get_current_vddc(rdev); 752 753 return sysfs_emit(buf, "%u\n", vddc); 754 } 755 756 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, radeon_hwmon_show_vddc, NULL, 757 0); 758 759 static struct attribute *hwmon_attributes[] = { 760 &sensor_dev_attr_temp1_input.dev_attr.attr, 761 &sensor_dev_attr_temp1_crit.dev_attr.attr, 762 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, 763 &sensor_dev_attr_pwm1.dev_attr.attr, 764 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 765 &sensor_dev_attr_pwm1_min.dev_attr.attr, 766 &sensor_dev_attr_pwm1_max.dev_attr.attr, 767 &sensor_dev_attr_freq1_input.dev_attr.attr, 768 &sensor_dev_attr_in0_input.dev_attr.attr, 769 NULL 770 }; 771 772 static umode_t hwmon_attributes_visible(struct kobject *kobj, 773 struct attribute *attr, int index) 774 { 775 struct device *dev = kobj_to_dev(kobj); 776 struct radeon_device *rdev = dev_get_drvdata(dev); 777 umode_t effective_mode = attr->mode; 778 779 /* Skip attributes if DPM is not enabled */ 780 if (rdev->pm.pm_method != PM_METHOD_DPM && 781 (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr || 782 attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr || 783 attr == &sensor_dev_attr_pwm1.dev_attr.attr || 784 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr || 785 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || 786 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr || 787 attr == &sensor_dev_attr_freq1_input.dev_attr.attr || 788 attr == &sensor_dev_attr_in0_input.dev_attr.attr)) 789 return 0; 790 791 /* Skip vddc attribute if get_current_vddc is not implemented */ 792 if(attr == &sensor_dev_attr_in0_input.dev_attr.attr && 793 !rdev->asic->dpm.get_current_vddc) 794 return 0; 795 796 /* Skip fan attributes if fan is not present */ 797 if (rdev->pm.no_fan && 798 (attr == &sensor_dev_attr_pwm1.dev_attr.attr || 799 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr || 800 attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || 801 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr)) 802 return 0; 803 804 /* mask fan attributes if we have no bindings for this asic to expose */ 805 if ((!rdev->asic->dpm.get_fan_speed_percent && 806 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't query fan */ 807 (!rdev->asic->dpm.fan_ctrl_get_mode && 808 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't query state */ 809 effective_mode &= ~S_IRUGO; 810 811 if ((!rdev->asic->dpm.set_fan_speed_percent && 812 attr == &sensor_dev_attr_pwm1.dev_attr.attr) || /* can't manage fan */ 813 (!rdev->asic->dpm.fan_ctrl_set_mode && 814 attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr)) /* can't manage state */ 815 effective_mode &= ~S_IWUSR; 816 817 /* hide max/min values if we can't both query and manage the fan */ 818 if ((!rdev->asic->dpm.set_fan_speed_percent && 819 !rdev->asic->dpm.get_fan_speed_percent) && 820 (attr == &sensor_dev_attr_pwm1_max.dev_attr.attr || 821 attr == &sensor_dev_attr_pwm1_min.dev_attr.attr)) 822 return 0; 823 824 return effective_mode; 825 } 826 827 static const struct attribute_group hwmon_attrgroup = { 828 .attrs = hwmon_attributes, 829 .is_visible = hwmon_attributes_visible, 830 }; 831 832 static const struct attribute_group *hwmon_groups[] = { 833 &hwmon_attrgroup, 834 NULL 835 }; 836 837 static int radeon_hwmon_init(struct radeon_device *rdev) 838 { 839 int err = 0; 840 841 switch (rdev->pm.int_thermal_type) { 842 case THERMAL_TYPE_RV6XX: 843 case THERMAL_TYPE_RV770: 844 case THERMAL_TYPE_EVERGREEN: 845 case THERMAL_TYPE_NI: 846 case THERMAL_TYPE_SUMO: 847 case THERMAL_TYPE_SI: 848 case THERMAL_TYPE_CI: 849 case THERMAL_TYPE_KV: 850 if (rdev->asic->pm.get_temperature == NULL) 851 return err; 852 rdev->pm.int_hwmon_dev = hwmon_device_register_with_groups(rdev->dev, 853 "radeon", rdev, 854 hwmon_groups); 855 if (IS_ERR(rdev->pm.int_hwmon_dev)) { 856 err = PTR_ERR(rdev->pm.int_hwmon_dev); 857 dev_err(rdev->dev, 858 "Unable to register hwmon device: %d\n", err); 859 } 860 break; 861 default: 862 break; 863 } 864 865 return err; 866 } 867 868 static void radeon_hwmon_fini(struct radeon_device *rdev) 869 { 870 if (rdev->pm.int_hwmon_dev) 871 hwmon_device_unregister(rdev->pm.int_hwmon_dev); 872 } 873 874 static void radeon_dpm_thermal_work_handler(struct work_struct *work) 875 { 876 struct radeon_device *rdev = 877 container_of(work, struct radeon_device, 878 pm.dpm.thermal.work); 879 /* switch to the thermal state */ 880 enum radeon_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL; 881 882 if (!rdev->pm.dpm_enabled) 883 return; 884 885 if (rdev->asic->pm.get_temperature) { 886 int temp = radeon_get_temperature(rdev); 887 888 if (temp < rdev->pm.dpm.thermal.min_temp) 889 /* switch back the user state */ 890 dpm_state = rdev->pm.dpm.user_state; 891 } else { 892 if (rdev->pm.dpm.thermal.high_to_low) 893 /* switch back the user state */ 894 dpm_state = rdev->pm.dpm.user_state; 895 } 896 mutex_lock(&rdev->pm.mutex); 897 if (dpm_state == POWER_STATE_TYPE_INTERNAL_THERMAL) 898 rdev->pm.dpm.thermal_active = true; 899 else 900 rdev->pm.dpm.thermal_active = false; 901 rdev->pm.dpm.state = dpm_state; 902 mutex_unlock(&rdev->pm.mutex); 903 904 radeon_pm_compute_clocks(rdev); 905 } 906 907 static bool radeon_dpm_single_display(struct radeon_device *rdev) 908 { 909 bool single_display = (rdev->pm.dpm.new_active_crtc_count < 2) ? 910 true : false; 911 912 /* check if the vblank period is too short to adjust the mclk */ 913 if (single_display && rdev->asic->dpm.vblank_too_short) { 914 if (radeon_dpm_vblank_too_short(rdev)) 915 single_display = false; 916 } 917 918 /* 120hz tends to be problematic even if they are under the 919 * vblank limit. 920 */ 921 if (single_display && (r600_dpm_get_vrefresh(rdev) >= 120)) 922 single_display = false; 923 924 return single_display; 925 } 926 927 static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev, 928 enum radeon_pm_state_type dpm_state) 929 { 930 int i; 931 struct radeon_ps *ps; 932 u32 ui_class; 933 bool single_display = radeon_dpm_single_display(rdev); 934 935 /* certain older asics have a separare 3D performance state, 936 * so try that first if the user selected performance 937 */ 938 if (dpm_state == POWER_STATE_TYPE_PERFORMANCE) 939 dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF; 940 /* balanced states don't exist at the moment */ 941 if (dpm_state == POWER_STATE_TYPE_BALANCED) 942 dpm_state = POWER_STATE_TYPE_PERFORMANCE; 943 944 restart_search: 945 /* Pick the best power state based on current conditions */ 946 for (i = 0; i < rdev->pm.dpm.num_ps; i++) { 947 ps = &rdev->pm.dpm.ps[i]; 948 ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK; 949 switch (dpm_state) { 950 /* user states */ 951 case POWER_STATE_TYPE_BATTERY: 952 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) { 953 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { 954 if (single_display) 955 return ps; 956 } else 957 return ps; 958 } 959 break; 960 case POWER_STATE_TYPE_BALANCED: 961 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BALANCED) { 962 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { 963 if (single_display) 964 return ps; 965 } else 966 return ps; 967 } 968 break; 969 case POWER_STATE_TYPE_PERFORMANCE: 970 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) { 971 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { 972 if (single_display) 973 return ps; 974 } else 975 return ps; 976 } 977 break; 978 /* internal states */ 979 case POWER_STATE_TYPE_INTERNAL_UVD: 980 if (rdev->pm.dpm.uvd_ps) 981 return rdev->pm.dpm.uvd_ps; 982 else 983 break; 984 case POWER_STATE_TYPE_INTERNAL_UVD_SD: 985 if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) 986 return ps; 987 break; 988 case POWER_STATE_TYPE_INTERNAL_UVD_HD: 989 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE) 990 return ps; 991 break; 992 case POWER_STATE_TYPE_INTERNAL_UVD_HD2: 993 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE) 994 return ps; 995 break; 996 case POWER_STATE_TYPE_INTERNAL_UVD_MVC: 997 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC) 998 return ps; 999 break; 1000 case POWER_STATE_TYPE_INTERNAL_BOOT: 1001 return rdev->pm.dpm.boot_ps; 1002 case POWER_STATE_TYPE_INTERNAL_THERMAL: 1003 if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL) 1004 return ps; 1005 break; 1006 case POWER_STATE_TYPE_INTERNAL_ACPI: 1007 if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI) 1008 return ps; 1009 break; 1010 case POWER_STATE_TYPE_INTERNAL_ULV: 1011 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV) 1012 return ps; 1013 break; 1014 case POWER_STATE_TYPE_INTERNAL_3DPERF: 1015 if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE) 1016 return ps; 1017 break; 1018 default: 1019 break; 1020 } 1021 } 1022 /* use a fallback state if we didn't match */ 1023 switch (dpm_state) { 1024 case POWER_STATE_TYPE_INTERNAL_UVD_SD: 1025 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD; 1026 goto restart_search; 1027 case POWER_STATE_TYPE_INTERNAL_UVD_HD: 1028 case POWER_STATE_TYPE_INTERNAL_UVD_HD2: 1029 case POWER_STATE_TYPE_INTERNAL_UVD_MVC: 1030 if (rdev->pm.dpm.uvd_ps) { 1031 return rdev->pm.dpm.uvd_ps; 1032 } else { 1033 dpm_state = POWER_STATE_TYPE_PERFORMANCE; 1034 goto restart_search; 1035 } 1036 case POWER_STATE_TYPE_INTERNAL_THERMAL: 1037 dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI; 1038 goto restart_search; 1039 case POWER_STATE_TYPE_INTERNAL_ACPI: 1040 dpm_state = POWER_STATE_TYPE_BATTERY; 1041 goto restart_search; 1042 case POWER_STATE_TYPE_BATTERY: 1043 case POWER_STATE_TYPE_BALANCED: 1044 case POWER_STATE_TYPE_INTERNAL_3DPERF: 1045 dpm_state = POWER_STATE_TYPE_PERFORMANCE; 1046 goto restart_search; 1047 default: 1048 break; 1049 } 1050 1051 return NULL; 1052 } 1053 1054 static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev) 1055 { 1056 int i; 1057 struct radeon_ps *ps; 1058 enum radeon_pm_state_type dpm_state; 1059 int ret; 1060 bool single_display = radeon_dpm_single_display(rdev); 1061 1062 /* if dpm init failed */ 1063 if (!rdev->pm.dpm_enabled) 1064 return; 1065 1066 if (rdev->pm.dpm.user_state != rdev->pm.dpm.state) { 1067 /* add other state override checks here */ 1068 if ((!rdev->pm.dpm.thermal_active) && 1069 (!rdev->pm.dpm.uvd_active)) 1070 rdev->pm.dpm.state = rdev->pm.dpm.user_state; 1071 } 1072 dpm_state = rdev->pm.dpm.state; 1073 1074 ps = radeon_dpm_pick_power_state(rdev, dpm_state); 1075 if (ps) 1076 rdev->pm.dpm.requested_ps = ps; 1077 else 1078 return; 1079 1080 /* no need to reprogram if nothing changed unless we are on BTC+ */ 1081 if (rdev->pm.dpm.current_ps == rdev->pm.dpm.requested_ps) { 1082 /* vce just modifies an existing state so force a change */ 1083 if (ps->vce_active != rdev->pm.dpm.vce_active) 1084 goto force; 1085 /* user has made a display change (such as timing) */ 1086 if (rdev->pm.dpm.single_display != single_display) 1087 goto force; 1088 if ((rdev->family < CHIP_BARTS) || (rdev->flags & RADEON_IS_IGP)) { 1089 /* for pre-BTC and APUs if the num crtcs changed but state is the same, 1090 * all we need to do is update the display configuration. 1091 */ 1092 if (rdev->pm.dpm.new_active_crtcs != rdev->pm.dpm.current_active_crtcs) { 1093 /* update display watermarks based on new power state */ 1094 radeon_bandwidth_update(rdev); 1095 /* update displays */ 1096 radeon_dpm_display_configuration_changed(rdev); 1097 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; 1098 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; 1099 } 1100 return; 1101 } else { 1102 /* for BTC+ if the num crtcs hasn't changed and state is the same, 1103 * nothing to do, if the num crtcs is > 1 and state is the same, 1104 * update display configuration. 1105 */ 1106 if (rdev->pm.dpm.new_active_crtcs == 1107 rdev->pm.dpm.current_active_crtcs) { 1108 return; 1109 } else { 1110 if ((rdev->pm.dpm.current_active_crtc_count > 1) && 1111 (rdev->pm.dpm.new_active_crtc_count > 1)) { 1112 /* update display watermarks based on new power state */ 1113 radeon_bandwidth_update(rdev); 1114 /* update displays */ 1115 radeon_dpm_display_configuration_changed(rdev); 1116 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; 1117 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; 1118 return; 1119 } 1120 } 1121 } 1122 } 1123 1124 force: 1125 if (radeon_dpm == 1) { 1126 printk("switching from power state:\n"); 1127 radeon_dpm_print_power_state(rdev, rdev->pm.dpm.current_ps); 1128 printk("switching to power state:\n"); 1129 radeon_dpm_print_power_state(rdev, rdev->pm.dpm.requested_ps); 1130 } 1131 1132 down_write(&rdev->pm.mclk_lock); 1133 mutex_lock(&rdev->ring_lock); 1134 1135 /* update whether vce is active */ 1136 ps->vce_active = rdev->pm.dpm.vce_active; 1137 1138 ret = radeon_dpm_pre_set_power_state(rdev); 1139 if (ret) 1140 goto done; 1141 1142 /* update display watermarks based on new power state */ 1143 radeon_bandwidth_update(rdev); 1144 /* update displays */ 1145 radeon_dpm_display_configuration_changed(rdev); 1146 1147 /* wait for the rings to drain */ 1148 for (i = 0; i < RADEON_NUM_RINGS; i++) { 1149 struct radeon_ring *ring = &rdev->ring[i]; 1150 if (ring->ready) 1151 radeon_fence_wait_empty(rdev, i); 1152 } 1153 1154 /* program the new power state */ 1155 radeon_dpm_set_power_state(rdev); 1156 1157 /* update current power state */ 1158 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps; 1159 1160 radeon_dpm_post_set_power_state(rdev); 1161 1162 rdev->pm.dpm.current_active_crtcs = rdev->pm.dpm.new_active_crtcs; 1163 rdev->pm.dpm.current_active_crtc_count = rdev->pm.dpm.new_active_crtc_count; 1164 rdev->pm.dpm.single_display = single_display; 1165 1166 if (rdev->asic->dpm.force_performance_level) { 1167 if (rdev->pm.dpm.thermal_active) { 1168 enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level; 1169 /* force low perf level for thermal */ 1170 radeon_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_LOW); 1171 /* save the user's level */ 1172 rdev->pm.dpm.forced_level = level; 1173 } else { 1174 /* otherwise, user selected level */ 1175 radeon_dpm_force_performance_level(rdev, rdev->pm.dpm.forced_level); 1176 } 1177 } 1178 1179 done: 1180 mutex_unlock(&rdev->ring_lock); 1181 up_write(&rdev->pm.mclk_lock); 1182 } 1183 1184 void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable) 1185 { 1186 enum radeon_pm_state_type dpm_state; 1187 1188 if (rdev->asic->dpm.powergate_uvd) { 1189 mutex_lock(&rdev->pm.mutex); 1190 /* don't powergate anything if we 1191 have active but pause streams */ 1192 enable |= rdev->pm.dpm.sd > 0; 1193 enable |= rdev->pm.dpm.hd > 0; 1194 /* enable/disable UVD */ 1195 radeon_dpm_powergate_uvd(rdev, !enable); 1196 mutex_unlock(&rdev->pm.mutex); 1197 } else { 1198 if (enable) { 1199 mutex_lock(&rdev->pm.mutex); 1200 rdev->pm.dpm.uvd_active = true; 1201 /* disable this for now */ 1202 #if 0 1203 if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0)) 1204 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD; 1205 else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0)) 1206 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD; 1207 else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 1)) 1208 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD; 1209 else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2)) 1210 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2; 1211 else 1212 #endif 1213 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD; 1214 rdev->pm.dpm.state = dpm_state; 1215 mutex_unlock(&rdev->pm.mutex); 1216 } else { 1217 mutex_lock(&rdev->pm.mutex); 1218 rdev->pm.dpm.uvd_active = false; 1219 mutex_unlock(&rdev->pm.mutex); 1220 } 1221 1222 radeon_pm_compute_clocks(rdev); 1223 } 1224 } 1225 1226 void radeon_dpm_enable_vce(struct radeon_device *rdev, bool enable) 1227 { 1228 if (enable) { 1229 mutex_lock(&rdev->pm.mutex); 1230 rdev->pm.dpm.vce_active = true; 1231 /* XXX select vce level based on ring/task */ 1232 rdev->pm.dpm.vce_level = RADEON_VCE_LEVEL_AC_ALL; 1233 mutex_unlock(&rdev->pm.mutex); 1234 } else { 1235 mutex_lock(&rdev->pm.mutex); 1236 rdev->pm.dpm.vce_active = false; 1237 mutex_unlock(&rdev->pm.mutex); 1238 } 1239 1240 radeon_pm_compute_clocks(rdev); 1241 } 1242 1243 static void radeon_pm_suspend_old(struct radeon_device *rdev) 1244 { 1245 mutex_lock(&rdev->pm.mutex); 1246 if (rdev->pm.pm_method == PM_METHOD_DYNPM) { 1247 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) 1248 rdev->pm.dynpm_state = DYNPM_STATE_SUSPENDED; 1249 } 1250 mutex_unlock(&rdev->pm.mutex); 1251 1252 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work); 1253 } 1254 1255 static void radeon_pm_suspend_dpm(struct radeon_device *rdev) 1256 { 1257 mutex_lock(&rdev->pm.mutex); 1258 /* disable dpm */ 1259 radeon_dpm_disable(rdev); 1260 /* reset the power state */ 1261 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps; 1262 rdev->pm.dpm_enabled = false; 1263 mutex_unlock(&rdev->pm.mutex); 1264 } 1265 1266 void radeon_pm_suspend(struct radeon_device *rdev) 1267 { 1268 if (rdev->pm.pm_method == PM_METHOD_DPM) 1269 radeon_pm_suspend_dpm(rdev); 1270 else 1271 radeon_pm_suspend_old(rdev); 1272 } 1273 1274 static void radeon_pm_resume_old(struct radeon_device *rdev) 1275 { 1276 /* set up the default clocks if the MC ucode is loaded */ 1277 if ((rdev->family >= CHIP_BARTS) && 1278 (rdev->family <= CHIP_CAYMAN) && 1279 rdev->mc_fw) { 1280 if (rdev->pm.default_vddc) 1281 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, 1282 SET_VOLTAGE_TYPE_ASIC_VDDC); 1283 if (rdev->pm.default_vddci) 1284 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci, 1285 SET_VOLTAGE_TYPE_ASIC_VDDCI); 1286 if (rdev->pm.default_sclk) 1287 radeon_set_engine_clock(rdev, rdev->pm.default_sclk); 1288 if (rdev->pm.default_mclk) 1289 radeon_set_memory_clock(rdev, rdev->pm.default_mclk); 1290 } 1291 /* asic init will reset the default power state */ 1292 mutex_lock(&rdev->pm.mutex); 1293 rdev->pm.current_power_state_index = rdev->pm.default_power_state_index; 1294 rdev->pm.current_clock_mode_index = 0; 1295 rdev->pm.current_sclk = rdev->pm.default_sclk; 1296 rdev->pm.current_mclk = rdev->pm.default_mclk; 1297 if (rdev->pm.power_state) { 1298 rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; 1299 rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci; 1300 } 1301 if (rdev->pm.pm_method == PM_METHOD_DYNPM 1302 && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) { 1303 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE; 1304 schedule_delayed_work(&rdev->pm.dynpm_idle_work, 1305 msecs_to_jiffies(RADEON_IDLE_LOOP_MS)); 1306 } 1307 mutex_unlock(&rdev->pm.mutex); 1308 radeon_pm_compute_clocks(rdev); 1309 } 1310 1311 static void radeon_pm_resume_dpm(struct radeon_device *rdev) 1312 { 1313 int ret; 1314 1315 /* asic init will reset to the boot state */ 1316 mutex_lock(&rdev->pm.mutex); 1317 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps; 1318 radeon_dpm_setup_asic(rdev); 1319 ret = radeon_dpm_enable(rdev); 1320 mutex_unlock(&rdev->pm.mutex); 1321 if (ret) 1322 goto dpm_resume_fail; 1323 rdev->pm.dpm_enabled = true; 1324 return; 1325 1326 dpm_resume_fail: 1327 DRM_ERROR("radeon: dpm resume failed\n"); 1328 if ((rdev->family >= CHIP_BARTS) && 1329 (rdev->family <= CHIP_CAYMAN) && 1330 rdev->mc_fw) { 1331 if (rdev->pm.default_vddc) 1332 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, 1333 SET_VOLTAGE_TYPE_ASIC_VDDC); 1334 if (rdev->pm.default_vddci) 1335 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci, 1336 SET_VOLTAGE_TYPE_ASIC_VDDCI); 1337 if (rdev->pm.default_sclk) 1338 radeon_set_engine_clock(rdev, rdev->pm.default_sclk); 1339 if (rdev->pm.default_mclk) 1340 radeon_set_memory_clock(rdev, rdev->pm.default_mclk); 1341 } 1342 } 1343 1344 void radeon_pm_resume(struct radeon_device *rdev) 1345 { 1346 if (rdev->pm.pm_method == PM_METHOD_DPM) 1347 radeon_pm_resume_dpm(rdev); 1348 else 1349 radeon_pm_resume_old(rdev); 1350 } 1351 1352 static int radeon_pm_init_old(struct radeon_device *rdev) 1353 { 1354 int ret; 1355 1356 rdev->pm.profile = PM_PROFILE_DEFAULT; 1357 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED; 1358 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; 1359 rdev->pm.dynpm_can_upclock = true; 1360 rdev->pm.dynpm_can_downclock = true; 1361 rdev->pm.default_sclk = rdev->clock.default_sclk; 1362 rdev->pm.default_mclk = rdev->clock.default_mclk; 1363 rdev->pm.current_sclk = rdev->clock.default_sclk; 1364 rdev->pm.current_mclk = rdev->clock.default_mclk; 1365 rdev->pm.int_thermal_type = THERMAL_TYPE_NONE; 1366 1367 if (rdev->bios) { 1368 if (rdev->is_atom_bios) 1369 radeon_atombios_get_power_modes(rdev); 1370 else 1371 radeon_combios_get_power_modes(rdev); 1372 radeon_pm_print_states(rdev); 1373 radeon_pm_init_profile(rdev); 1374 /* set up the default clocks if the MC ucode is loaded */ 1375 if ((rdev->family >= CHIP_BARTS) && 1376 (rdev->family <= CHIP_CAYMAN) && 1377 rdev->mc_fw) { 1378 if (rdev->pm.default_vddc) 1379 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, 1380 SET_VOLTAGE_TYPE_ASIC_VDDC); 1381 if (rdev->pm.default_vddci) 1382 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci, 1383 SET_VOLTAGE_TYPE_ASIC_VDDCI); 1384 if (rdev->pm.default_sclk) 1385 radeon_set_engine_clock(rdev, rdev->pm.default_sclk); 1386 if (rdev->pm.default_mclk) 1387 radeon_set_memory_clock(rdev, rdev->pm.default_mclk); 1388 } 1389 } 1390 1391 /* set up the internal thermal sensor if applicable */ 1392 ret = radeon_hwmon_init(rdev); 1393 if (ret) 1394 return ret; 1395 1396 INIT_DELAYED_WORK(&rdev->pm.dynpm_idle_work, radeon_dynpm_idle_work_handler); 1397 1398 if (rdev->pm.num_power_states > 1) { 1399 radeon_debugfs_pm_init(rdev); 1400 DRM_INFO("radeon: power management initialized\n"); 1401 } 1402 1403 return 0; 1404 } 1405 1406 static void radeon_dpm_print_power_states(struct radeon_device *rdev) 1407 { 1408 int i; 1409 1410 for (i = 0; i < rdev->pm.dpm.num_ps; i++) { 1411 printk("== power state %d ==\n", i); 1412 radeon_dpm_print_power_state(rdev, &rdev->pm.dpm.ps[i]); 1413 } 1414 } 1415 1416 static int radeon_pm_init_dpm(struct radeon_device *rdev) 1417 { 1418 int ret; 1419 1420 /* default to balanced state */ 1421 rdev->pm.dpm.state = POWER_STATE_TYPE_BALANCED; 1422 rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED; 1423 rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; 1424 rdev->pm.default_sclk = rdev->clock.default_sclk; 1425 rdev->pm.default_mclk = rdev->clock.default_mclk; 1426 rdev->pm.current_sclk = rdev->clock.default_sclk; 1427 rdev->pm.current_mclk = rdev->clock.default_mclk; 1428 rdev->pm.int_thermal_type = THERMAL_TYPE_NONE; 1429 1430 if (rdev->bios && rdev->is_atom_bios) 1431 radeon_atombios_get_power_modes(rdev); 1432 else 1433 return -EINVAL; 1434 1435 /* set up the internal thermal sensor if applicable */ 1436 ret = radeon_hwmon_init(rdev); 1437 if (ret) 1438 return ret; 1439 1440 INIT_WORK(&rdev->pm.dpm.thermal.work, radeon_dpm_thermal_work_handler); 1441 mutex_lock(&rdev->pm.mutex); 1442 radeon_dpm_init(rdev); 1443 rdev->pm.dpm.current_ps = rdev->pm.dpm.requested_ps = rdev->pm.dpm.boot_ps; 1444 if (radeon_dpm == 1) 1445 radeon_dpm_print_power_states(rdev); 1446 radeon_dpm_setup_asic(rdev); 1447 ret = radeon_dpm_enable(rdev); 1448 mutex_unlock(&rdev->pm.mutex); 1449 if (ret) 1450 goto dpm_failed; 1451 rdev->pm.dpm_enabled = true; 1452 1453 radeon_debugfs_pm_init(rdev); 1454 1455 DRM_INFO("radeon: dpm initialized\n"); 1456 1457 return 0; 1458 1459 dpm_failed: 1460 rdev->pm.dpm_enabled = false; 1461 if ((rdev->family >= CHIP_BARTS) && 1462 (rdev->family <= CHIP_CAYMAN) && 1463 rdev->mc_fw) { 1464 if (rdev->pm.default_vddc) 1465 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc, 1466 SET_VOLTAGE_TYPE_ASIC_VDDC); 1467 if (rdev->pm.default_vddci) 1468 radeon_atom_set_voltage(rdev, rdev->pm.default_vddci, 1469 SET_VOLTAGE_TYPE_ASIC_VDDCI); 1470 if (rdev->pm.default_sclk) 1471 radeon_set_engine_clock(rdev, rdev->pm.default_sclk); 1472 if (rdev->pm.default_mclk) 1473 radeon_set_memory_clock(rdev, rdev->pm.default_mclk); 1474 } 1475 DRM_ERROR("radeon: dpm initialization failed\n"); 1476 return ret; 1477 } 1478 1479 struct radeon_dpm_quirk { 1480 u32 chip_vendor; 1481 u32 chip_device; 1482 u32 subsys_vendor; 1483 u32 subsys_device; 1484 }; 1485 1486 /* cards with dpm stability problems */ 1487 static struct radeon_dpm_quirk radeon_dpm_quirk_list[] = { 1488 /* TURKS - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386534 */ 1489 { PCI_VENDOR_ID_ATI, 0x6759, 0x1682, 0x3195 }, 1490 /* TURKS - https://bugzilla.kernel.org/show_bug.cgi?id=83731 */ 1491 { PCI_VENDOR_ID_ATI, 0x6840, 0x1179, 0xfb81 }, 1492 { 0, 0, 0, 0 }, 1493 }; 1494 1495 int radeon_pm_init(struct radeon_device *rdev) 1496 { 1497 struct radeon_dpm_quirk *p = radeon_dpm_quirk_list; 1498 bool disable_dpm = false; 1499 1500 /* Apply dpm quirks */ 1501 while (p && p->chip_device != 0) { 1502 if (rdev->pdev->vendor == p->chip_vendor && 1503 rdev->pdev->device == p->chip_device && 1504 rdev->pdev->subsystem_vendor == p->subsys_vendor && 1505 rdev->pdev->subsystem_device == p->subsys_device) { 1506 disable_dpm = true; 1507 break; 1508 } 1509 ++p; 1510 } 1511 1512 /* enable dpm on rv6xx+ */ 1513 switch (rdev->family) { 1514 case CHIP_RV610: 1515 case CHIP_RV630: 1516 case CHIP_RV620: 1517 case CHIP_RV635: 1518 case CHIP_RV670: 1519 case CHIP_RS780: 1520 case CHIP_RS880: 1521 case CHIP_RV770: 1522 /* DPM requires the RLC, RV770+ dGPU requires SMC */ 1523 if (!rdev->rlc_fw) 1524 rdev->pm.pm_method = PM_METHOD_PROFILE; 1525 else if ((rdev->family >= CHIP_RV770) && 1526 (!(rdev->flags & RADEON_IS_IGP)) && 1527 (!rdev->smc_fw)) 1528 rdev->pm.pm_method = PM_METHOD_PROFILE; 1529 else if (radeon_dpm == 1) 1530 rdev->pm.pm_method = PM_METHOD_DPM; 1531 else 1532 rdev->pm.pm_method = PM_METHOD_PROFILE; 1533 break; 1534 case CHIP_RV730: 1535 case CHIP_RV710: 1536 case CHIP_RV740: 1537 case CHIP_CEDAR: 1538 case CHIP_REDWOOD: 1539 case CHIP_JUNIPER: 1540 case CHIP_CYPRESS: 1541 case CHIP_HEMLOCK: 1542 case CHIP_PALM: 1543 case CHIP_SUMO: 1544 case CHIP_SUMO2: 1545 case CHIP_BARTS: 1546 case CHIP_TURKS: 1547 case CHIP_CAICOS: 1548 case CHIP_CAYMAN: 1549 case CHIP_ARUBA: 1550 case CHIP_TAHITI: 1551 case CHIP_PITCAIRN: 1552 case CHIP_VERDE: 1553 case CHIP_OLAND: 1554 case CHIP_HAINAN: 1555 case CHIP_BONAIRE: 1556 case CHIP_KABINI: 1557 case CHIP_KAVERI: 1558 case CHIP_HAWAII: 1559 case CHIP_MULLINS: 1560 /* DPM requires the RLC, RV770+ dGPU requires SMC */ 1561 if (!rdev->rlc_fw) 1562 rdev->pm.pm_method = PM_METHOD_PROFILE; 1563 else if ((rdev->family >= CHIP_RV770) && 1564 (!(rdev->flags & RADEON_IS_IGP)) && 1565 (!rdev->smc_fw)) 1566 rdev->pm.pm_method = PM_METHOD_PROFILE; 1567 else if (disable_dpm && (radeon_dpm == -1)) 1568 rdev->pm.pm_method = PM_METHOD_PROFILE; 1569 else if (radeon_dpm == 0) 1570 rdev->pm.pm_method = PM_METHOD_PROFILE; 1571 else 1572 rdev->pm.pm_method = PM_METHOD_DPM; 1573 break; 1574 default: 1575 /* default to profile method */ 1576 rdev->pm.pm_method = PM_METHOD_PROFILE; 1577 break; 1578 } 1579 1580 if (rdev->pm.pm_method == PM_METHOD_DPM) 1581 return radeon_pm_init_dpm(rdev); 1582 else 1583 return radeon_pm_init_old(rdev); 1584 } 1585 1586 int radeon_pm_late_init(struct radeon_device *rdev) 1587 { 1588 int ret = 0; 1589 1590 if (rdev->pm.pm_method == PM_METHOD_DPM) { 1591 if (rdev->pm.dpm_enabled) { 1592 if (!rdev->pm.sysfs_initialized) { 1593 ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state); 1594 if (ret) 1595 DRM_ERROR("failed to create device file for dpm state\n"); 1596 ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level); 1597 if (ret) 1598 DRM_ERROR("failed to create device file for dpm state\n"); 1599 /* XXX: these are noops for dpm but are here for backwards compat */ 1600 ret = device_create_file(rdev->dev, &dev_attr_power_profile); 1601 if (ret) 1602 DRM_ERROR("failed to create device file for power profile\n"); 1603 ret = device_create_file(rdev->dev, &dev_attr_power_method); 1604 if (ret) 1605 DRM_ERROR("failed to create device file for power method\n"); 1606 rdev->pm.sysfs_initialized = true; 1607 } 1608 1609 mutex_lock(&rdev->pm.mutex); 1610 ret = radeon_dpm_late_enable(rdev); 1611 mutex_unlock(&rdev->pm.mutex); 1612 if (ret) { 1613 rdev->pm.dpm_enabled = false; 1614 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n"); 1615 } else { 1616 /* set the dpm state for PX since there won't be 1617 * a modeset to call this. 1618 */ 1619 radeon_pm_compute_clocks(rdev); 1620 } 1621 } 1622 } else { 1623 if ((rdev->pm.num_power_states > 1) && 1624 (!rdev->pm.sysfs_initialized)) { 1625 /* where's the best place to put these? */ 1626 ret = device_create_file(rdev->dev, &dev_attr_power_profile); 1627 if (ret) 1628 DRM_ERROR("failed to create device file for power profile\n"); 1629 ret = device_create_file(rdev->dev, &dev_attr_power_method); 1630 if (ret) 1631 DRM_ERROR("failed to create device file for power method\n"); 1632 else 1633 rdev->pm.sysfs_initialized = true; 1634 } 1635 } 1636 return ret; 1637 } 1638 1639 static void radeon_pm_fini_old(struct radeon_device *rdev) 1640 { 1641 if (rdev->pm.num_power_states > 1) { 1642 mutex_lock(&rdev->pm.mutex); 1643 if (rdev->pm.pm_method == PM_METHOD_PROFILE) { 1644 rdev->pm.profile = PM_PROFILE_DEFAULT; 1645 radeon_pm_update_profile(rdev); 1646 radeon_pm_set_clocks(rdev); 1647 } else if (rdev->pm.pm_method == PM_METHOD_DYNPM) { 1648 /* reset default clocks */ 1649 rdev->pm.dynpm_state = DYNPM_STATE_DISABLED; 1650 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT; 1651 radeon_pm_set_clocks(rdev); 1652 } 1653 mutex_unlock(&rdev->pm.mutex); 1654 1655 cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work); 1656 1657 device_remove_file(rdev->dev, &dev_attr_power_profile); 1658 device_remove_file(rdev->dev, &dev_attr_power_method); 1659 } 1660 1661 radeon_hwmon_fini(rdev); 1662 kfree(rdev->pm.power_state); 1663 } 1664 1665 static void radeon_pm_fini_dpm(struct radeon_device *rdev) 1666 { 1667 if (rdev->pm.num_power_states > 1) { 1668 mutex_lock(&rdev->pm.mutex); 1669 radeon_dpm_disable(rdev); 1670 mutex_unlock(&rdev->pm.mutex); 1671 1672 device_remove_file(rdev->dev, &dev_attr_power_dpm_state); 1673 device_remove_file(rdev->dev, &dev_attr_power_dpm_force_performance_level); 1674 /* XXX backwards compat */ 1675 device_remove_file(rdev->dev, &dev_attr_power_profile); 1676 device_remove_file(rdev->dev, &dev_attr_power_method); 1677 } 1678 radeon_dpm_fini(rdev); 1679 1680 radeon_hwmon_fini(rdev); 1681 kfree(rdev->pm.power_state); 1682 } 1683 1684 void radeon_pm_fini(struct radeon_device *rdev) 1685 { 1686 if (rdev->pm.pm_method == PM_METHOD_DPM) 1687 radeon_pm_fini_dpm(rdev); 1688 else 1689 radeon_pm_fini_old(rdev); 1690 } 1691 1692 static void radeon_pm_compute_clocks_old(struct radeon_device *rdev) 1693 { 1694 struct drm_device *ddev = rdev->ddev; 1695 struct drm_crtc *crtc; 1696 struct radeon_crtc *radeon_crtc; 1697 1698 if (rdev->pm.num_power_states < 2) 1699 return; 1700 1701 mutex_lock(&rdev->pm.mutex); 1702 1703 rdev->pm.active_crtcs = 0; 1704 rdev->pm.active_crtc_count = 0; 1705 if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) { 1706 list_for_each_entry(crtc, 1707 &ddev->mode_config.crtc_list, head) { 1708 radeon_crtc = to_radeon_crtc(crtc); 1709 if (radeon_crtc->enabled) { 1710 rdev->pm.active_crtcs |= (1 << radeon_crtc->crtc_id); 1711 rdev->pm.active_crtc_count++; 1712 } 1713 } 1714 } 1715 1716 if (rdev->pm.pm_method == PM_METHOD_PROFILE) { 1717 radeon_pm_update_profile(rdev); 1718 radeon_pm_set_clocks(rdev); 1719 } else if (rdev->pm.pm_method == PM_METHOD_DYNPM) { 1720 if (rdev->pm.dynpm_state != DYNPM_STATE_DISABLED) { 1721 if (rdev->pm.active_crtc_count > 1) { 1722 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) { 1723 cancel_delayed_work(&rdev->pm.dynpm_idle_work); 1724 1725 rdev->pm.dynpm_state = DYNPM_STATE_PAUSED; 1726 rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT; 1727 radeon_pm_get_dynpm_state(rdev); 1728 radeon_pm_set_clocks(rdev); 1729 1730 DRM_DEBUG_DRIVER("radeon: dynamic power management deactivated\n"); 1731 } 1732 } else if (rdev->pm.active_crtc_count == 1) { 1733 /* TODO: Increase clocks if needed for current mode */ 1734 1735 if (rdev->pm.dynpm_state == DYNPM_STATE_MINIMUM) { 1736 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE; 1737 rdev->pm.dynpm_planned_action = DYNPM_ACTION_UPCLOCK; 1738 radeon_pm_get_dynpm_state(rdev); 1739 radeon_pm_set_clocks(rdev); 1740 1741 schedule_delayed_work(&rdev->pm.dynpm_idle_work, 1742 msecs_to_jiffies(RADEON_IDLE_LOOP_MS)); 1743 } else if (rdev->pm.dynpm_state == DYNPM_STATE_PAUSED) { 1744 rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE; 1745 schedule_delayed_work(&rdev->pm.dynpm_idle_work, 1746 msecs_to_jiffies(RADEON_IDLE_LOOP_MS)); 1747 DRM_DEBUG_DRIVER("radeon: dynamic power management activated\n"); 1748 } 1749 } else { /* count == 0 */ 1750 if (rdev->pm.dynpm_state != DYNPM_STATE_MINIMUM) { 1751 cancel_delayed_work(&rdev->pm.dynpm_idle_work); 1752 1753 rdev->pm.dynpm_state = DYNPM_STATE_MINIMUM; 1754 rdev->pm.dynpm_planned_action = DYNPM_ACTION_MINIMUM; 1755 radeon_pm_get_dynpm_state(rdev); 1756 radeon_pm_set_clocks(rdev); 1757 } 1758 } 1759 } 1760 } 1761 1762 mutex_unlock(&rdev->pm.mutex); 1763 } 1764 1765 static void radeon_pm_compute_clocks_dpm(struct radeon_device *rdev) 1766 { 1767 struct drm_device *ddev = rdev->ddev; 1768 struct drm_crtc *crtc; 1769 struct radeon_crtc *radeon_crtc; 1770 struct radeon_connector *radeon_connector; 1771 1772 if (!rdev->pm.dpm_enabled) 1773 return; 1774 1775 mutex_lock(&rdev->pm.mutex); 1776 1777 /* update active crtc counts */ 1778 rdev->pm.dpm.new_active_crtcs = 0; 1779 rdev->pm.dpm.new_active_crtc_count = 0; 1780 rdev->pm.dpm.high_pixelclock_count = 0; 1781 if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) { 1782 list_for_each_entry(crtc, 1783 &ddev->mode_config.crtc_list, head) { 1784 radeon_crtc = to_radeon_crtc(crtc); 1785 if (crtc->enabled) { 1786 rdev->pm.dpm.new_active_crtcs |= (1 << radeon_crtc->crtc_id); 1787 rdev->pm.dpm.new_active_crtc_count++; 1788 if (!radeon_crtc->connector) 1789 continue; 1790 1791 radeon_connector = to_radeon_connector(radeon_crtc->connector); 1792 if (radeon_connector->pixelclock_for_modeset > 297000) 1793 rdev->pm.dpm.high_pixelclock_count++; 1794 } 1795 } 1796 } 1797 1798 /* update battery/ac status */ 1799 if (power_supply_is_system_supplied() > 0) 1800 rdev->pm.dpm.ac_power = true; 1801 else 1802 rdev->pm.dpm.ac_power = false; 1803 1804 radeon_dpm_change_power_state_locked(rdev); 1805 1806 mutex_unlock(&rdev->pm.mutex); 1807 1808 } 1809 1810 void radeon_pm_compute_clocks(struct radeon_device *rdev) 1811 { 1812 if (rdev->pm.pm_method == PM_METHOD_DPM) 1813 radeon_pm_compute_clocks_dpm(rdev); 1814 else 1815 radeon_pm_compute_clocks_old(rdev); 1816 } 1817 1818 static bool radeon_pm_in_vbl(struct radeon_device *rdev) 1819 { 1820 int crtc, vpos, hpos, vbl_status; 1821 bool in_vbl = true; 1822 1823 /* Iterate over all active crtc's. All crtc's must be in vblank, 1824 * otherwise return in_vbl == false. 1825 */ 1826 for (crtc = 0; (crtc < rdev->num_crtc) && in_vbl; crtc++) { 1827 if (rdev->pm.active_crtcs & (1 << crtc)) { 1828 vbl_status = radeon_get_crtc_scanoutpos(rdev->ddev, 1829 crtc, 1830 USE_REAL_VBLANKSTART, 1831 &vpos, &hpos, NULL, NULL, 1832 &rdev->mode_info.crtcs[crtc]->base.hwmode); 1833 if ((vbl_status & DRM_SCANOUTPOS_VALID) && 1834 !(vbl_status & DRM_SCANOUTPOS_IN_VBLANK)) 1835 in_vbl = false; 1836 } 1837 } 1838 1839 return in_vbl; 1840 } 1841 1842 static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish) 1843 { 1844 u32 stat_crtc = 0; 1845 bool in_vbl = radeon_pm_in_vbl(rdev); 1846 1847 if (!in_vbl) 1848 DRM_DEBUG_DRIVER("not in vbl for pm change %08x at %s\n", stat_crtc, 1849 finish ? "exit" : "entry"); 1850 return in_vbl; 1851 } 1852 1853 static void radeon_dynpm_idle_work_handler(struct work_struct *work) 1854 { 1855 struct radeon_device *rdev; 1856 1857 rdev = container_of(work, struct radeon_device, 1858 pm.dynpm_idle_work.work); 1859 1860 mutex_lock(&rdev->pm.mutex); 1861 if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) { 1862 int not_processed = 0; 1863 int i; 1864 1865 for (i = 0; i < RADEON_NUM_RINGS; ++i) { 1866 struct radeon_ring *ring = &rdev->ring[i]; 1867 1868 if (ring->ready) { 1869 not_processed += radeon_fence_count_emitted(rdev, i); 1870 if (not_processed >= 3) 1871 break; 1872 } 1873 } 1874 1875 if (not_processed >= 3) { /* should upclock */ 1876 if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_DOWNCLOCK) { 1877 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; 1878 } else if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_NONE && 1879 rdev->pm.dynpm_can_upclock) { 1880 rdev->pm.dynpm_planned_action = 1881 DYNPM_ACTION_UPCLOCK; 1882 rdev->pm.dynpm_action_timeout = jiffies + 1883 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS); 1884 } 1885 } else if (not_processed == 0) { /* should downclock */ 1886 if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_UPCLOCK) { 1887 rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; 1888 } else if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_NONE && 1889 rdev->pm.dynpm_can_downclock) { 1890 rdev->pm.dynpm_planned_action = 1891 DYNPM_ACTION_DOWNCLOCK; 1892 rdev->pm.dynpm_action_timeout = jiffies + 1893 msecs_to_jiffies(RADEON_RECLOCK_DELAY_MS); 1894 } 1895 } 1896 1897 /* Note, radeon_pm_set_clocks is called with static_switch set 1898 * to false since we want to wait for vbl to avoid flicker. 1899 */ 1900 if (rdev->pm.dynpm_planned_action != DYNPM_ACTION_NONE && 1901 time_after(jiffies, rdev->pm.dynpm_action_timeout)) { 1902 radeon_pm_get_dynpm_state(rdev); 1903 radeon_pm_set_clocks(rdev); 1904 } 1905 1906 schedule_delayed_work(&rdev->pm.dynpm_idle_work, 1907 msecs_to_jiffies(RADEON_IDLE_LOOP_MS)); 1908 } 1909 mutex_unlock(&rdev->pm.mutex); 1910 } 1911 1912 /* 1913 * Debugfs info 1914 */ 1915 #if defined(CONFIG_DEBUG_FS) 1916 1917 static int radeon_debugfs_pm_info_show(struct seq_file *m, void *unused) 1918 { 1919 struct radeon_device *rdev = (struct radeon_device *)m->private; 1920 struct drm_device *ddev = rdev->ddev; 1921 1922 if ((rdev->flags & RADEON_IS_PX) && 1923 (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) { 1924 seq_printf(m, "PX asic powered off\n"); 1925 } else if (rdev->pm.dpm_enabled) { 1926 mutex_lock(&rdev->pm.mutex); 1927 if (rdev->asic->dpm.debugfs_print_current_performance_level) 1928 radeon_dpm_debugfs_print_current_performance_level(rdev, m); 1929 else 1930 seq_printf(m, "Debugfs support not implemented for this asic\n"); 1931 mutex_unlock(&rdev->pm.mutex); 1932 } else { 1933 seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk); 1934 /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */ 1935 if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP)) 1936 seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk); 1937 else 1938 seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev)); 1939 seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk); 1940 if (rdev->asic->pm.get_memory_clock) 1941 seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev)); 1942 if (rdev->pm.current_vddc) 1943 seq_printf(m, "voltage: %u mV\n", rdev->pm.current_vddc); 1944 if (rdev->asic->pm.get_pcie_lanes) 1945 seq_printf(m, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev)); 1946 } 1947 1948 return 0; 1949 } 1950 1951 DEFINE_SHOW_ATTRIBUTE(radeon_debugfs_pm_info); 1952 #endif 1953 1954 static void radeon_debugfs_pm_init(struct radeon_device *rdev) 1955 { 1956 #if defined(CONFIG_DEBUG_FS) 1957 struct dentry *root = rdev->ddev->primary->debugfs_root; 1958 1959 debugfs_create_file("radeon_pm_info", 0444, root, rdev, 1960 &radeon_debugfs_pm_info_fops); 1961 1962 #endif 1963 } 1964