1 /* 2 * Copyright 2012 Red Hat 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: Ben Skeggs 23 */ 24 25 #include <linux/console.h> 26 #include <linux/delay.h> 27 #include <linux/module.h> 28 #include <linux/pci.h> 29 #include <linux/pm_runtime.h> 30 #include <linux/vga_switcheroo.h> 31 32 #include "drmP.h" 33 #include "drm_crtc_helper.h" 34 35 #include <core/gpuobj.h> 36 #include <core/option.h> 37 #include <core/pci.h> 38 #include <core/tegra.h> 39 40 #include "nouveau_drm.h" 41 #include "nouveau_dma.h" 42 #include "nouveau_ttm.h" 43 #include "nouveau_gem.h" 44 #include "nouveau_vga.h" 45 #include "nouveau_sysfs.h" 46 #include "nouveau_hwmon.h" 47 #include "nouveau_acpi.h" 48 #include "nouveau_bios.h" 49 #include "nouveau_ioctl.h" 50 #include "nouveau_abi16.h" 51 #include "nouveau_fbcon.h" 52 #include "nouveau_fence.h" 53 #include "nouveau_debugfs.h" 54 #include "nouveau_usif.h" 55 #include "nouveau_connector.h" 56 #include "nouveau_platform.h" 57 58 MODULE_PARM_DESC(config, "option string to pass to driver core"); 59 static char *nouveau_config; 60 module_param_named(config, nouveau_config, charp, 0400); 61 62 MODULE_PARM_DESC(debug, "debug string to pass to driver core"); 63 static char *nouveau_debug; 64 module_param_named(debug, nouveau_debug, charp, 0400); 65 66 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); 67 static int nouveau_noaccel = 0; 68 module_param_named(noaccel, nouveau_noaccel, int, 0400); 69 70 MODULE_PARM_DESC(modeset, "enable driver (default: auto, " 71 "0 = disabled, 1 = enabled, 2 = headless)"); 72 int nouveau_modeset = -1; 73 module_param_named(modeset, nouveau_modeset, int, 0400); 74 75 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); 76 int nouveau_runtime_pm = -1; 77 module_param_named(runpm, nouveau_runtime_pm, int, 0400); 78 79 static struct drm_driver driver_stub; 80 static struct drm_driver driver_pci; 81 static struct drm_driver driver_platform; 82 83 static u64 84 nouveau_pci_name(struct pci_dev *pdev) 85 { 86 u64 name = (u64)pci_domain_nr(pdev->bus) << 32; 87 name |= pdev->bus->number << 16; 88 name |= PCI_SLOT(pdev->devfn) << 8; 89 return name | PCI_FUNC(pdev->devfn); 90 } 91 92 static u64 93 nouveau_platform_name(struct platform_device *platformdev) 94 { 95 return platformdev->id; 96 } 97 98 static u64 99 nouveau_name(struct drm_device *dev) 100 { 101 if (dev->pdev) 102 return nouveau_pci_name(dev->pdev); 103 else 104 return nouveau_platform_name(dev->platformdev); 105 } 106 107 static int 108 nouveau_cli_create(struct drm_device *dev, const char *sname, 109 int size, void **pcli) 110 { 111 struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL); 112 int ret; 113 if (cli) { 114 snprintf(cli->name, sizeof(cli->name), "%s", sname); 115 cli->dev = dev; 116 117 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev), 118 nouveau_config, nouveau_debug, 119 &cli->base); 120 if (ret == 0) { 121 mutex_init(&cli->mutex); 122 usif_client_init(cli); 123 } 124 return ret; 125 } 126 return -ENOMEM; 127 } 128 129 static void 130 nouveau_cli_destroy(struct nouveau_cli *cli) 131 { 132 nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL); 133 nvif_client_fini(&cli->base); 134 usif_client_fini(cli); 135 kfree(cli); 136 } 137 138 static void 139 nouveau_accel_fini(struct nouveau_drm *drm) 140 { 141 nouveau_channel_idle(drm->channel); 142 nvif_object_fini(&drm->ntfy); 143 nvkm_gpuobj_del(&drm->notify); 144 nvif_notify_fini(&drm->flip); 145 nvif_object_fini(&drm->nvsw); 146 nouveau_channel_del(&drm->channel); 147 148 nouveau_channel_idle(drm->cechan); 149 nvif_object_fini(&drm->ttm.copy); 150 nouveau_channel_del(&drm->cechan); 151 152 if (drm->fence) 153 nouveau_fence(drm)->dtor(drm); 154 } 155 156 static void 157 nouveau_accel_init(struct nouveau_drm *drm) 158 { 159 struct nvif_device *device = &drm->device; 160 struct nvif_sclass *sclass; 161 u32 arg0, arg1; 162 int ret, i, n; 163 164 if (nouveau_noaccel) 165 return; 166 167 /* initialise synchronisation routines */ 168 /*XXX: this is crap, but the fence/channel stuff is a little 169 * backwards in some places. this will be fixed. 170 */ 171 ret = n = nvif_object_sclass_get(&device->object, &sclass); 172 if (ret < 0) 173 return; 174 175 for (ret = -ENOSYS, i = 0; i < n; i++) { 176 switch (sclass[i].oclass) { 177 case NV03_CHANNEL_DMA: 178 ret = nv04_fence_create(drm); 179 break; 180 case NV10_CHANNEL_DMA: 181 ret = nv10_fence_create(drm); 182 break; 183 case NV17_CHANNEL_DMA: 184 case NV40_CHANNEL_DMA: 185 ret = nv17_fence_create(drm); 186 break; 187 case NV50_CHANNEL_GPFIFO: 188 ret = nv50_fence_create(drm); 189 break; 190 case G82_CHANNEL_GPFIFO: 191 ret = nv84_fence_create(drm); 192 break; 193 case FERMI_CHANNEL_GPFIFO: 194 case KEPLER_CHANNEL_GPFIFO_A: 195 case MAXWELL_CHANNEL_GPFIFO_A: 196 ret = nvc0_fence_create(drm); 197 break; 198 default: 199 break; 200 } 201 } 202 203 nvif_object_sclass_put(&sclass); 204 if (ret) { 205 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 206 nouveau_accel_fini(drm); 207 return; 208 } 209 210 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 211 ret = nouveau_channel_new(drm, &drm->device, 212 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0| 213 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1, 214 0, &drm->cechan); 215 if (ret) 216 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 217 218 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR; 219 arg1 = 1; 220 } else 221 if (device->info.chipset >= 0xa3 && 222 device->info.chipset != 0xaa && 223 device->info.chipset != 0xac) { 224 ret = nouveau_channel_new(drm, &drm->device, 225 NvDmaFB, NvDmaTT, &drm->cechan); 226 if (ret) 227 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 228 229 arg0 = NvDmaFB; 230 arg1 = NvDmaTT; 231 } else { 232 arg0 = NvDmaFB; 233 arg1 = NvDmaTT; 234 } 235 236 ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel); 237 if (ret) { 238 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 239 nouveau_accel_fini(drm); 240 return; 241 } 242 243 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 244 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 245 if (ret == 0) { 246 ret = RING_SPACE(drm->channel, 2); 247 if (ret == 0) { 248 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 249 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 250 OUT_RING (drm->channel, NVDRM_NVSW); 251 } else 252 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 253 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 254 OUT_RING (drm->channel, 0x001f0000); 255 } 256 } 257 258 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete, 259 false, NVSW_NTFY_UEVENT, NULL, 0, 0, 260 &drm->flip); 261 if (ret == 0) 262 ret = nvif_notify_get(&drm->flip); 263 if (ret) { 264 nouveau_accel_fini(drm); 265 return; 266 } 267 } 268 269 if (ret) { 270 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 271 nouveau_accel_fini(drm); 272 return; 273 } 274 275 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 276 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false, 277 NULL, &drm->notify); 278 if (ret) { 279 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 280 nouveau_accel_fini(drm); 281 return; 282 } 283 284 ret = nvif_object_init(&drm->channel->user, NvNotify0, 285 NV_DMA_IN_MEMORY, 286 &(struct nv_dma_v0) { 287 .target = NV_DMA_V0_TARGET_VRAM, 288 .access = NV_DMA_V0_ACCESS_RDWR, 289 .start = drm->notify->addr, 290 .limit = drm->notify->addr + 31 291 }, sizeof(struct nv_dma_v0), 292 &drm->ntfy); 293 if (ret) { 294 nouveau_accel_fini(drm); 295 return; 296 } 297 } 298 299 300 nouveau_bo_move_init(drm); 301 } 302 303 static int nouveau_drm_probe(struct pci_dev *pdev, 304 const struct pci_device_id *pent) 305 { 306 struct nvkm_device *device; 307 struct apertures_struct *aper; 308 bool boot = false; 309 int ret; 310 311 /* remove conflicting drivers (vesafb, efifb etc) */ 312 aper = alloc_apertures(3); 313 if (!aper) 314 return -ENOMEM; 315 316 aper->ranges[0].base = pci_resource_start(pdev, 1); 317 aper->ranges[0].size = pci_resource_len(pdev, 1); 318 aper->count = 1; 319 320 if (pci_resource_len(pdev, 2)) { 321 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 322 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 323 aper->count++; 324 } 325 326 if (pci_resource_len(pdev, 3)) { 327 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 328 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 329 aper->count++; 330 } 331 332 #ifdef CONFIG_X86 333 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 334 #endif 335 if (nouveau_modeset != 2) 336 remove_conflicting_framebuffers(aper, "nouveaufb", boot); 337 kfree(aper); 338 339 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 340 true, true, ~0ULL, &device); 341 if (ret) 342 return ret; 343 344 pci_set_master(pdev); 345 346 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 347 if (ret) { 348 nvkm_device_del(&device); 349 return ret; 350 } 351 352 return 0; 353 } 354 355 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 356 357 static void 358 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 359 { 360 struct pci_dev *pdev = drm->dev->pdev; 361 362 if (!pdev) { 363 DRM_INFO("not a PCI device; no HDMI\n"); 364 drm->hdmi_device = NULL; 365 return; 366 } 367 368 /* subfunction one is a hdmi audio device? */ 369 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 370 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 371 372 if (!drm->hdmi_device) { 373 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 374 return; 375 } 376 377 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 378 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 379 pci_dev_put(drm->hdmi_device); 380 drm->hdmi_device = NULL; 381 return; 382 } 383 } 384 385 static int 386 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 387 { 388 struct nouveau_drm *drm; 389 int ret; 390 391 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm); 392 if (ret) 393 return ret; 394 395 dev->dev_private = drm; 396 drm->dev = dev; 397 nvxx_client(&drm->client.base)->debug = 398 nvkm_dbgopt(nouveau_debug, "DRM"); 399 400 INIT_LIST_HEAD(&drm->clients); 401 spin_lock_init(&drm->tile.lock); 402 403 nouveau_get_hdmi_dev(drm); 404 405 ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE, 406 &(struct nv_device_v0) { 407 .device = ~0, 408 }, sizeof(struct nv_device_v0), 409 &drm->device); 410 if (ret) 411 goto fail_device; 412 413 dev->irq_enabled = true; 414 415 /* workaround an odd issue on nvc1 by disabling the device's 416 * nosnoop capability. hopefully won't cause issues until a 417 * better fix is found - assuming there is one... 418 */ 419 if (drm->device.info.chipset == 0xc1) 420 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000); 421 422 nouveau_vga_init(drm); 423 424 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 425 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 426 0x1000, NULL, &drm->client.vm); 427 if (ret) 428 goto fail_device; 429 430 nvxx_client(&drm->client.base)->vm = drm->client.vm; 431 } 432 433 ret = nouveau_ttm_init(drm); 434 if (ret) 435 goto fail_ttm; 436 437 ret = nouveau_bios_init(dev); 438 if (ret) 439 goto fail_bios; 440 441 ret = nouveau_display_create(dev); 442 if (ret) 443 goto fail_dispctor; 444 445 if (dev->mode_config.num_crtc) { 446 ret = nouveau_display_init(dev); 447 if (ret) 448 goto fail_dispinit; 449 } 450 451 nouveau_sysfs_init(dev); 452 nouveau_hwmon_init(dev); 453 nouveau_accel_init(drm); 454 nouveau_fbcon_init(dev); 455 456 if (nouveau_runtime_pm != 0) { 457 pm_runtime_use_autosuspend(dev->dev); 458 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 459 pm_runtime_set_active(dev->dev); 460 pm_runtime_allow(dev->dev); 461 pm_runtime_mark_last_busy(dev->dev); 462 pm_runtime_put(dev->dev); 463 } 464 return 0; 465 466 fail_dispinit: 467 nouveau_display_destroy(dev); 468 fail_dispctor: 469 nouveau_bios_takedown(dev); 470 fail_bios: 471 nouveau_ttm_fini(drm); 472 fail_ttm: 473 nouveau_vga_fini(drm); 474 fail_device: 475 nvif_device_fini(&drm->device); 476 nouveau_cli_destroy(&drm->client); 477 return ret; 478 } 479 480 static int 481 nouveau_drm_unload(struct drm_device *dev) 482 { 483 struct nouveau_drm *drm = nouveau_drm(dev); 484 485 pm_runtime_get_sync(dev->dev); 486 nouveau_fbcon_fini(dev); 487 nouveau_accel_fini(drm); 488 nouveau_hwmon_fini(dev); 489 nouveau_sysfs_fini(dev); 490 491 if (dev->mode_config.num_crtc) 492 nouveau_display_fini(dev); 493 nouveau_display_destroy(dev); 494 495 nouveau_bios_takedown(dev); 496 497 nouveau_ttm_fini(drm); 498 nouveau_vga_fini(drm); 499 500 nvif_device_fini(&drm->device); 501 if (drm->hdmi_device) 502 pci_dev_put(drm->hdmi_device); 503 nouveau_cli_destroy(&drm->client); 504 return 0; 505 } 506 507 void 508 nouveau_drm_device_remove(struct drm_device *dev) 509 { 510 struct nouveau_drm *drm = nouveau_drm(dev); 511 struct nvkm_client *client; 512 struct nvkm_device *device; 513 514 dev->irq_enabled = false; 515 client = nvxx_client(&drm->client.base); 516 device = nvkm_device_find(client->device); 517 drm_put_dev(dev); 518 519 nvkm_device_del(&device); 520 } 521 522 static void 523 nouveau_drm_remove(struct pci_dev *pdev) 524 { 525 struct drm_device *dev = pci_get_drvdata(pdev); 526 527 nouveau_drm_device_remove(dev); 528 } 529 530 static int 531 nouveau_do_suspend(struct drm_device *dev, bool runtime) 532 { 533 struct nouveau_drm *drm = nouveau_drm(dev); 534 struct nouveau_cli *cli; 535 int ret; 536 537 if (dev->mode_config.num_crtc) { 538 NV_INFO(drm, "suspending console...\n"); 539 nouveau_fbcon_set_suspend(dev, 1); 540 NV_INFO(drm, "suspending display...\n"); 541 ret = nouveau_display_suspend(dev, runtime); 542 if (ret) 543 return ret; 544 } 545 546 NV_INFO(drm, "evicting buffers...\n"); 547 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 548 549 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 550 if (drm->cechan) { 551 ret = nouveau_channel_idle(drm->cechan); 552 if (ret) 553 goto fail_display; 554 } 555 556 if (drm->channel) { 557 ret = nouveau_channel_idle(drm->channel); 558 if (ret) 559 goto fail_display; 560 } 561 562 NV_INFO(drm, "suspending client object trees...\n"); 563 if (drm->fence && nouveau_fence(drm)->suspend) { 564 if (!nouveau_fence(drm)->suspend(drm)) { 565 ret = -ENOMEM; 566 goto fail_display; 567 } 568 } 569 570 list_for_each_entry(cli, &drm->clients, head) { 571 ret = nvif_client_suspend(&cli->base); 572 if (ret) 573 goto fail_client; 574 } 575 576 NV_INFO(drm, "suspending kernel object tree...\n"); 577 ret = nvif_client_suspend(&drm->client.base); 578 if (ret) 579 goto fail_client; 580 581 return 0; 582 583 fail_client: 584 list_for_each_entry_continue_reverse(cli, &drm->clients, head) { 585 nvif_client_resume(&cli->base); 586 } 587 588 if (drm->fence && nouveau_fence(drm)->resume) 589 nouveau_fence(drm)->resume(drm); 590 591 fail_display: 592 if (dev->mode_config.num_crtc) { 593 NV_INFO(drm, "resuming display...\n"); 594 nouveau_display_resume(dev, runtime); 595 } 596 return ret; 597 } 598 599 static int 600 nouveau_do_resume(struct drm_device *dev, bool runtime) 601 { 602 struct nouveau_drm *drm = nouveau_drm(dev); 603 struct nouveau_cli *cli; 604 605 NV_INFO(drm, "resuming kernel object tree...\n"); 606 nvif_client_resume(&drm->client.base); 607 608 NV_INFO(drm, "resuming client object trees...\n"); 609 if (drm->fence && nouveau_fence(drm)->resume) 610 nouveau_fence(drm)->resume(drm); 611 612 list_for_each_entry(cli, &drm->clients, head) { 613 nvif_client_resume(&cli->base); 614 } 615 616 nouveau_run_vbios_init(dev); 617 618 if (dev->mode_config.num_crtc) { 619 NV_INFO(drm, "resuming display...\n"); 620 nouveau_display_resume(dev, runtime); 621 NV_INFO(drm, "resuming console...\n"); 622 nouveau_fbcon_set_suspend(dev, 0); 623 } 624 625 return 0; 626 } 627 628 int 629 nouveau_pmops_suspend(struct device *dev) 630 { 631 struct pci_dev *pdev = to_pci_dev(dev); 632 struct drm_device *drm_dev = pci_get_drvdata(pdev); 633 int ret; 634 635 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 636 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 637 return 0; 638 639 ret = nouveau_do_suspend(drm_dev, false); 640 if (ret) 641 return ret; 642 643 pci_save_state(pdev); 644 pci_disable_device(pdev); 645 pci_set_power_state(pdev, PCI_D3hot); 646 udelay(200); 647 return 0; 648 } 649 650 int 651 nouveau_pmops_resume(struct device *dev) 652 { 653 struct pci_dev *pdev = to_pci_dev(dev); 654 struct drm_device *drm_dev = pci_get_drvdata(pdev); 655 int ret; 656 657 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 658 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 659 return 0; 660 661 pci_set_power_state(pdev, PCI_D0); 662 pci_restore_state(pdev); 663 ret = pci_enable_device(pdev); 664 if (ret) 665 return ret; 666 pci_set_master(pdev); 667 668 return nouveau_do_resume(drm_dev, false); 669 } 670 671 static int 672 nouveau_pmops_freeze(struct device *dev) 673 { 674 struct pci_dev *pdev = to_pci_dev(dev); 675 struct drm_device *drm_dev = pci_get_drvdata(pdev); 676 return nouveau_do_suspend(drm_dev, false); 677 } 678 679 static int 680 nouveau_pmops_thaw(struct device *dev) 681 { 682 struct pci_dev *pdev = to_pci_dev(dev); 683 struct drm_device *drm_dev = pci_get_drvdata(pdev); 684 return nouveau_do_resume(drm_dev, false); 685 } 686 687 static int 688 nouveau_pmops_runtime_suspend(struct device *dev) 689 { 690 struct pci_dev *pdev = to_pci_dev(dev); 691 struct drm_device *drm_dev = pci_get_drvdata(pdev); 692 int ret; 693 694 if (nouveau_runtime_pm == 0) { 695 pm_runtime_forbid(dev); 696 return -EBUSY; 697 } 698 699 /* are we optimus enabled? */ 700 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 701 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 702 pm_runtime_forbid(dev); 703 return -EBUSY; 704 } 705 706 drm_kms_helper_poll_disable(drm_dev); 707 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 708 nouveau_switcheroo_optimus_dsm(); 709 ret = nouveau_do_suspend(drm_dev, true); 710 pci_save_state(pdev); 711 pci_disable_device(pdev); 712 pci_ignore_hotplug(pdev); 713 pci_set_power_state(pdev, PCI_D3cold); 714 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 715 return ret; 716 } 717 718 static int 719 nouveau_pmops_runtime_resume(struct device *dev) 720 { 721 struct pci_dev *pdev = to_pci_dev(dev); 722 struct drm_device *drm_dev = pci_get_drvdata(pdev); 723 struct nvif_device *device = &nouveau_drm(drm_dev)->device; 724 int ret; 725 726 if (nouveau_runtime_pm == 0) 727 return -EINVAL; 728 729 pci_set_power_state(pdev, PCI_D0); 730 pci_restore_state(pdev); 731 ret = pci_enable_device(pdev); 732 if (ret) 733 return ret; 734 pci_set_master(pdev); 735 736 ret = nouveau_do_resume(drm_dev, true); 737 drm_kms_helper_poll_enable(drm_dev); 738 /* do magic */ 739 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 740 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 741 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 742 return ret; 743 } 744 745 static int 746 nouveau_pmops_runtime_idle(struct device *dev) 747 { 748 struct pci_dev *pdev = to_pci_dev(dev); 749 struct drm_device *drm_dev = pci_get_drvdata(pdev); 750 struct nouveau_drm *drm = nouveau_drm(drm_dev); 751 struct drm_crtc *crtc; 752 753 if (nouveau_runtime_pm == 0) { 754 pm_runtime_forbid(dev); 755 return -EBUSY; 756 } 757 758 /* are we optimus enabled? */ 759 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 760 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 761 pm_runtime_forbid(dev); 762 return -EBUSY; 763 } 764 765 /* if we have a hdmi audio device - make sure it has a driver loaded */ 766 if (drm->hdmi_device) { 767 if (!drm->hdmi_device->driver) { 768 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 769 pm_runtime_mark_last_busy(dev); 770 return -EBUSY; 771 } 772 } 773 774 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 775 if (crtc->enabled) { 776 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 777 return -EBUSY; 778 } 779 } 780 pm_runtime_mark_last_busy(dev); 781 pm_runtime_autosuspend(dev); 782 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 783 return 1; 784 } 785 786 static int 787 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 788 { 789 struct nouveau_drm *drm = nouveau_drm(dev); 790 struct nouveau_cli *cli; 791 char name[32], tmpname[TASK_COMM_LEN]; 792 int ret; 793 794 /* need to bring up power immediately if opening device */ 795 ret = pm_runtime_get_sync(dev->dev); 796 if (ret < 0 && ret != -EACCES) 797 return ret; 798 799 get_task_comm(tmpname, current); 800 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 801 802 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli); 803 804 if (ret) 805 goto out_suspend; 806 807 cli->base.super = false; 808 809 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 810 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 811 0x1000, NULL, &cli->vm); 812 if (ret) { 813 nouveau_cli_destroy(cli); 814 goto out_suspend; 815 } 816 817 nvxx_client(&cli->base)->vm = cli->vm; 818 } 819 820 fpriv->driver_priv = cli; 821 822 mutex_lock(&drm->client.mutex); 823 list_add(&cli->head, &drm->clients); 824 mutex_unlock(&drm->client.mutex); 825 826 out_suspend: 827 pm_runtime_mark_last_busy(dev->dev); 828 pm_runtime_put_autosuspend(dev->dev); 829 830 return ret; 831 } 832 833 static void 834 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) 835 { 836 struct nouveau_cli *cli = nouveau_cli(fpriv); 837 struct nouveau_drm *drm = nouveau_drm(dev); 838 839 pm_runtime_get_sync(dev->dev); 840 841 mutex_lock(&cli->mutex); 842 if (cli->abi16) 843 nouveau_abi16_fini(cli->abi16); 844 mutex_unlock(&cli->mutex); 845 846 mutex_lock(&drm->client.mutex); 847 list_del(&cli->head); 848 mutex_unlock(&drm->client.mutex); 849 850 } 851 852 static void 853 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 854 { 855 struct nouveau_cli *cli = nouveau_cli(fpriv); 856 nouveau_cli_destroy(cli); 857 pm_runtime_mark_last_busy(dev->dev); 858 pm_runtime_put_autosuspend(dev->dev); 859 } 860 861 static const struct drm_ioctl_desc 862 nouveau_ioctls[] = { 863 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 864 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 865 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 866 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 867 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 868 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 869 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 870 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 871 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 872 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 873 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 874 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 875 }; 876 877 long 878 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 879 { 880 struct drm_file *filp = file->private_data; 881 struct drm_device *dev = filp->minor->dev; 882 long ret; 883 884 ret = pm_runtime_get_sync(dev->dev); 885 if (ret < 0 && ret != -EACCES) 886 return ret; 887 888 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 889 case DRM_NOUVEAU_NVIF: 890 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 891 break; 892 default: 893 ret = drm_ioctl(file, cmd, arg); 894 break; 895 } 896 897 pm_runtime_mark_last_busy(dev->dev); 898 pm_runtime_put_autosuspend(dev->dev); 899 return ret; 900 } 901 902 static const struct file_operations 903 nouveau_driver_fops = { 904 .owner = THIS_MODULE, 905 .open = drm_open, 906 .release = drm_release, 907 .unlocked_ioctl = nouveau_drm_ioctl, 908 .mmap = nouveau_ttm_mmap, 909 .poll = drm_poll, 910 .read = drm_read, 911 #if defined(CONFIG_COMPAT) 912 .compat_ioctl = nouveau_compat_ioctl, 913 #endif 914 .llseek = noop_llseek, 915 }; 916 917 static struct drm_driver 918 driver_stub = { 919 .driver_features = 920 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 921 DRIVER_KMS_LEGACY_CONTEXT, 922 923 .load = nouveau_drm_load, 924 .unload = nouveau_drm_unload, 925 .open = nouveau_drm_open, 926 .preclose = nouveau_drm_preclose, 927 .postclose = nouveau_drm_postclose, 928 .lastclose = nouveau_vga_lastclose, 929 930 #if defined(CONFIG_DEBUG_FS) 931 .debugfs_init = nouveau_debugfs_init, 932 .debugfs_cleanup = nouveau_debugfs_takedown, 933 #endif 934 935 .get_vblank_counter = drm_vblank_no_hw_counter, 936 .enable_vblank = nouveau_display_vblank_enable, 937 .disable_vblank = nouveau_display_vblank_disable, 938 .get_scanout_position = nouveau_display_scanoutpos, 939 .get_vblank_timestamp = nouveau_display_vblstamp, 940 941 .ioctls = nouveau_ioctls, 942 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 943 .fops = &nouveau_driver_fops, 944 945 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 946 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 947 .gem_prime_export = drm_gem_prime_export, 948 .gem_prime_import = drm_gem_prime_import, 949 .gem_prime_pin = nouveau_gem_prime_pin, 950 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 951 .gem_prime_unpin = nouveau_gem_prime_unpin, 952 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 953 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 954 .gem_prime_vmap = nouveau_gem_prime_vmap, 955 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 956 957 .gem_free_object = nouveau_gem_object_del, 958 .gem_open_object = nouveau_gem_object_open, 959 .gem_close_object = nouveau_gem_object_close, 960 961 .dumb_create = nouveau_display_dumb_create, 962 .dumb_map_offset = nouveau_display_dumb_map_offset, 963 .dumb_destroy = drm_gem_dumb_destroy, 964 965 .name = DRIVER_NAME, 966 .desc = DRIVER_DESC, 967 #ifdef GIT_REVISION 968 .date = GIT_REVISION, 969 #else 970 .date = DRIVER_DATE, 971 #endif 972 .major = DRIVER_MAJOR, 973 .minor = DRIVER_MINOR, 974 .patchlevel = DRIVER_PATCHLEVEL, 975 }; 976 977 static struct pci_device_id 978 nouveau_drm_pci_table[] = { 979 { 980 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 981 .class = PCI_BASE_CLASS_DISPLAY << 16, 982 .class_mask = 0xff << 16, 983 }, 984 { 985 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 986 .class = PCI_BASE_CLASS_DISPLAY << 16, 987 .class_mask = 0xff << 16, 988 }, 989 {} 990 }; 991 992 static void nouveau_display_options(void) 993 { 994 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 995 996 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 997 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 998 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 999 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1000 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1001 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1002 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1003 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1004 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1005 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1006 DRM_DEBUG_DRIVER("... pstate : %d\n", nouveau_pstate); 1007 } 1008 1009 static const struct dev_pm_ops nouveau_pm_ops = { 1010 .suspend = nouveau_pmops_suspend, 1011 .resume = nouveau_pmops_resume, 1012 .freeze = nouveau_pmops_freeze, 1013 .thaw = nouveau_pmops_thaw, 1014 .poweroff = nouveau_pmops_freeze, 1015 .restore = nouveau_pmops_resume, 1016 .runtime_suspend = nouveau_pmops_runtime_suspend, 1017 .runtime_resume = nouveau_pmops_runtime_resume, 1018 .runtime_idle = nouveau_pmops_runtime_idle, 1019 }; 1020 1021 static struct pci_driver 1022 nouveau_drm_pci_driver = { 1023 .name = "nouveau", 1024 .id_table = nouveau_drm_pci_table, 1025 .probe = nouveau_drm_probe, 1026 .remove = nouveau_drm_remove, 1027 .driver.pm = &nouveau_pm_ops, 1028 }; 1029 1030 struct drm_device * 1031 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1032 struct platform_device *pdev, 1033 struct nvkm_device **pdevice) 1034 { 1035 struct drm_device *drm; 1036 int err; 1037 1038 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1039 true, true, ~0ULL, pdevice); 1040 if (err) 1041 goto err_free; 1042 1043 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1044 if (!drm) { 1045 err = -ENOMEM; 1046 goto err_free; 1047 } 1048 1049 err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev)); 1050 if (err < 0) 1051 goto err_free; 1052 1053 drm->platformdev = pdev; 1054 platform_set_drvdata(pdev, drm); 1055 1056 return drm; 1057 1058 err_free: 1059 nvkm_device_del(pdevice); 1060 1061 return ERR_PTR(err); 1062 } 1063 1064 static int __init 1065 nouveau_drm_init(void) 1066 { 1067 driver_pci = driver_stub; 1068 driver_pci.set_busid = drm_pci_set_busid; 1069 driver_platform = driver_stub; 1070 driver_platform.set_busid = drm_platform_set_busid; 1071 1072 nouveau_display_options(); 1073 1074 if (nouveau_modeset == -1) { 1075 #ifdef CONFIG_VGA_CONSOLE 1076 if (vgacon_text_force()) 1077 nouveau_modeset = 0; 1078 #endif 1079 } 1080 1081 if (!nouveau_modeset) 1082 return 0; 1083 1084 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1085 platform_driver_register(&nouveau_platform_driver); 1086 #endif 1087 1088 nouveau_register_dsm_handler(); 1089 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1090 } 1091 1092 static void __exit 1093 nouveau_drm_exit(void) 1094 { 1095 if (!nouveau_modeset) 1096 return; 1097 1098 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1099 nouveau_unregister_dsm_handler(); 1100 1101 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1102 platform_driver_unregister(&nouveau_platform_driver); 1103 #endif 1104 } 1105 1106 module_init(nouveau_drm_init); 1107 module_exit(nouveau_drm_exit); 1108 1109 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1110 MODULE_AUTHOR(DRIVER_AUTHOR); 1111 MODULE_DESCRIPTION(DRIVER_DESC); 1112 MODULE_LICENSE("GPL and additional rights"); 1113