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, NVDRM_CHAN + 1, 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, NVDRM_CHAN + 1, 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, NVDRM_CHAN, arg0, arg1, 237 &drm->channel); 238 if (ret) { 239 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 240 nouveau_accel_fini(drm); 241 return; 242 } 243 244 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 245 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 246 if (ret == 0) { 247 ret = RING_SPACE(drm->channel, 2); 248 if (ret == 0) { 249 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 250 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 251 OUT_RING (drm->channel, NVDRM_NVSW); 252 } else 253 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 254 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 255 OUT_RING (drm->channel, 0x001f0000); 256 } 257 } 258 259 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete, 260 false, NVSW_NTFY_UEVENT, NULL, 0, 0, 261 &drm->flip); 262 if (ret == 0) 263 ret = nvif_notify_get(&drm->flip); 264 if (ret) { 265 nouveau_accel_fini(drm); 266 return; 267 } 268 } 269 270 if (ret) { 271 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 272 nouveau_accel_fini(drm); 273 return; 274 } 275 276 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 277 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false, 278 NULL, &drm->notify); 279 if (ret) { 280 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 281 nouveau_accel_fini(drm); 282 return; 283 } 284 285 ret = nvif_object_init(&drm->channel->user, NvNotify0, 286 NV_DMA_IN_MEMORY, 287 &(struct nv_dma_v0) { 288 .target = NV_DMA_V0_TARGET_VRAM, 289 .access = NV_DMA_V0_ACCESS_RDWR, 290 .start = drm->notify->addr, 291 .limit = drm->notify->addr + 31 292 }, sizeof(struct nv_dma_v0), 293 &drm->ntfy); 294 if (ret) { 295 nouveau_accel_fini(drm); 296 return; 297 } 298 } 299 300 301 nouveau_bo_move_init(drm); 302 } 303 304 static int nouveau_drm_probe(struct pci_dev *pdev, 305 const struct pci_device_id *pent) 306 { 307 struct nvkm_device *device; 308 struct apertures_struct *aper; 309 bool boot = false; 310 int ret; 311 312 /* remove conflicting drivers (vesafb, efifb etc) */ 313 aper = alloc_apertures(3); 314 if (!aper) 315 return -ENOMEM; 316 317 aper->ranges[0].base = pci_resource_start(pdev, 1); 318 aper->ranges[0].size = pci_resource_len(pdev, 1); 319 aper->count = 1; 320 321 if (pci_resource_len(pdev, 2)) { 322 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 323 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 324 aper->count++; 325 } 326 327 if (pci_resource_len(pdev, 3)) { 328 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 329 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 330 aper->count++; 331 } 332 333 #ifdef CONFIG_X86 334 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 335 #endif 336 if (nouveau_modeset != 2) 337 remove_conflicting_framebuffers(aper, "nouveaufb", boot); 338 kfree(aper); 339 340 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 341 true, true, ~0ULL, &device); 342 if (ret) 343 return ret; 344 345 pci_set_master(pdev); 346 347 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 348 if (ret) { 349 nvkm_device_del(&device); 350 return ret; 351 } 352 353 return 0; 354 } 355 356 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 357 358 static void 359 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 360 { 361 struct pci_dev *pdev = drm->dev->pdev; 362 363 if (!pdev) { 364 DRM_INFO("not a PCI device; no HDMI\n"); 365 drm->hdmi_device = NULL; 366 return; 367 } 368 369 /* subfunction one is a hdmi audio device? */ 370 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 371 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 372 373 if (!drm->hdmi_device) { 374 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 375 return; 376 } 377 378 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 379 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 380 pci_dev_put(drm->hdmi_device); 381 drm->hdmi_device = NULL; 382 return; 383 } 384 } 385 386 static int 387 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 388 { 389 struct nouveau_drm *drm; 390 int ret; 391 392 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm); 393 if (ret) 394 return ret; 395 396 dev->dev_private = drm; 397 drm->dev = dev; 398 nvxx_client(&drm->client.base)->debug = 399 nvkm_dbgopt(nouveau_debug, "DRM"); 400 401 INIT_LIST_HEAD(&drm->clients); 402 spin_lock_init(&drm->tile.lock); 403 404 nouveau_get_hdmi_dev(drm); 405 406 ret = nvif_device_init(&drm->client.base.object, 407 NVDRM_DEVICE, NV_DEVICE, 408 &(struct nv_device_v0) { 409 .device = ~0, 410 }, sizeof(struct nv_device_v0), 411 &drm->device); 412 if (ret) 413 goto fail_device; 414 415 dev->irq_enabled = true; 416 417 /* workaround an odd issue on nvc1 by disabling the device's 418 * nosnoop capability. hopefully won't cause issues until a 419 * better fix is found - assuming there is one... 420 */ 421 if (drm->device.info.chipset == 0xc1) 422 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000); 423 424 nouveau_vga_init(drm); 425 426 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 427 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 428 0x1000, NULL, &drm->client.vm); 429 if (ret) 430 goto fail_device; 431 432 nvxx_client(&drm->client.base)->vm = drm->client.vm; 433 } 434 435 ret = nouveau_ttm_init(drm); 436 if (ret) 437 goto fail_ttm; 438 439 ret = nouveau_bios_init(dev); 440 if (ret) 441 goto fail_bios; 442 443 ret = nouveau_display_create(dev); 444 if (ret) 445 goto fail_dispctor; 446 447 if (dev->mode_config.num_crtc) { 448 ret = nouveau_display_init(dev); 449 if (ret) 450 goto fail_dispinit; 451 } 452 453 nouveau_sysfs_init(dev); 454 nouveau_hwmon_init(dev); 455 nouveau_accel_init(drm); 456 nouveau_fbcon_init(dev); 457 458 if (nouveau_runtime_pm != 0) { 459 pm_runtime_use_autosuspend(dev->dev); 460 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 461 pm_runtime_set_active(dev->dev); 462 pm_runtime_allow(dev->dev); 463 pm_runtime_mark_last_busy(dev->dev); 464 pm_runtime_put(dev->dev); 465 } 466 return 0; 467 468 fail_dispinit: 469 nouveau_display_destroy(dev); 470 fail_dispctor: 471 nouveau_bios_takedown(dev); 472 fail_bios: 473 nouveau_ttm_fini(drm); 474 fail_ttm: 475 nouveau_vga_fini(drm); 476 fail_device: 477 nvif_device_fini(&drm->device); 478 nouveau_cli_destroy(&drm->client); 479 return ret; 480 } 481 482 static int 483 nouveau_drm_unload(struct drm_device *dev) 484 { 485 struct nouveau_drm *drm = nouveau_drm(dev); 486 487 pm_runtime_get_sync(dev->dev); 488 nouveau_fbcon_fini(dev); 489 nouveau_accel_fini(drm); 490 nouveau_hwmon_fini(dev); 491 nouveau_sysfs_fini(dev); 492 493 if (dev->mode_config.num_crtc) 494 nouveau_display_fini(dev); 495 nouveau_display_destroy(dev); 496 497 nouveau_bios_takedown(dev); 498 499 nouveau_ttm_fini(drm); 500 nouveau_vga_fini(drm); 501 502 nvif_device_fini(&drm->device); 503 if (drm->hdmi_device) 504 pci_dev_put(drm->hdmi_device); 505 nouveau_cli_destroy(&drm->client); 506 return 0; 507 } 508 509 void 510 nouveau_drm_device_remove(struct drm_device *dev) 511 { 512 struct nouveau_drm *drm = nouveau_drm(dev); 513 struct nvkm_client *client; 514 struct nvkm_device *device; 515 516 dev->irq_enabled = false; 517 client = nvxx_client(&drm->client.base); 518 device = nvkm_device_find(client->device); 519 drm_put_dev(dev); 520 521 nvkm_device_del(&device); 522 } 523 524 static void 525 nouveau_drm_remove(struct pci_dev *pdev) 526 { 527 struct drm_device *dev = pci_get_drvdata(pdev); 528 529 nouveau_drm_device_remove(dev); 530 } 531 532 static int 533 nouveau_do_suspend(struct drm_device *dev, bool runtime) 534 { 535 struct nouveau_drm *drm = nouveau_drm(dev); 536 struct nouveau_cli *cli; 537 int ret; 538 539 if (dev->mode_config.num_crtc) { 540 NV_INFO(drm, "suspending console...\n"); 541 nouveau_fbcon_set_suspend(dev, 1); 542 NV_INFO(drm, "suspending display...\n"); 543 ret = nouveau_display_suspend(dev, runtime); 544 if (ret) 545 return ret; 546 } 547 548 NV_INFO(drm, "evicting buffers...\n"); 549 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 550 551 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 552 if (drm->cechan) { 553 ret = nouveau_channel_idle(drm->cechan); 554 if (ret) 555 goto fail_display; 556 } 557 558 if (drm->channel) { 559 ret = nouveau_channel_idle(drm->channel); 560 if (ret) 561 goto fail_display; 562 } 563 564 NV_INFO(drm, "suspending client object trees...\n"); 565 if (drm->fence && nouveau_fence(drm)->suspend) { 566 if (!nouveau_fence(drm)->suspend(drm)) { 567 ret = -ENOMEM; 568 goto fail_display; 569 } 570 } 571 572 list_for_each_entry(cli, &drm->clients, head) { 573 ret = nvif_client_suspend(&cli->base); 574 if (ret) 575 goto fail_client; 576 } 577 578 NV_INFO(drm, "suspending kernel object tree...\n"); 579 ret = nvif_client_suspend(&drm->client.base); 580 if (ret) 581 goto fail_client; 582 583 return 0; 584 585 fail_client: 586 list_for_each_entry_continue_reverse(cli, &drm->clients, head) { 587 nvif_client_resume(&cli->base); 588 } 589 590 if (drm->fence && nouveau_fence(drm)->resume) 591 nouveau_fence(drm)->resume(drm); 592 593 fail_display: 594 if (dev->mode_config.num_crtc) { 595 NV_INFO(drm, "resuming display...\n"); 596 nouveau_display_resume(dev, runtime); 597 } 598 return ret; 599 } 600 601 static int 602 nouveau_do_resume(struct drm_device *dev, bool runtime) 603 { 604 struct nouveau_drm *drm = nouveau_drm(dev); 605 struct nouveau_cli *cli; 606 607 NV_INFO(drm, "resuming kernel object tree...\n"); 608 nvif_client_resume(&drm->client.base); 609 610 NV_INFO(drm, "resuming client object trees...\n"); 611 if (drm->fence && nouveau_fence(drm)->resume) 612 nouveau_fence(drm)->resume(drm); 613 614 list_for_each_entry(cli, &drm->clients, head) { 615 nvif_client_resume(&cli->base); 616 } 617 618 nouveau_run_vbios_init(dev); 619 620 if (dev->mode_config.num_crtc) { 621 NV_INFO(drm, "resuming display...\n"); 622 nouveau_display_resume(dev, runtime); 623 NV_INFO(drm, "resuming console...\n"); 624 nouveau_fbcon_set_suspend(dev, 0); 625 } 626 627 return 0; 628 } 629 630 int 631 nouveau_pmops_suspend(struct device *dev) 632 { 633 struct pci_dev *pdev = to_pci_dev(dev); 634 struct drm_device *drm_dev = pci_get_drvdata(pdev); 635 int ret; 636 637 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 638 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 639 return 0; 640 641 ret = nouveau_do_suspend(drm_dev, false); 642 if (ret) 643 return ret; 644 645 pci_save_state(pdev); 646 pci_disable_device(pdev); 647 pci_set_power_state(pdev, PCI_D3hot); 648 udelay(200); 649 return 0; 650 } 651 652 int 653 nouveau_pmops_resume(struct device *dev) 654 { 655 struct pci_dev *pdev = to_pci_dev(dev); 656 struct drm_device *drm_dev = pci_get_drvdata(pdev); 657 int ret; 658 659 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 660 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 661 return 0; 662 663 pci_set_power_state(pdev, PCI_D0); 664 pci_restore_state(pdev); 665 ret = pci_enable_device(pdev); 666 if (ret) 667 return ret; 668 pci_set_master(pdev); 669 670 return nouveau_do_resume(drm_dev, false); 671 } 672 673 static int 674 nouveau_pmops_freeze(struct device *dev) 675 { 676 struct pci_dev *pdev = to_pci_dev(dev); 677 struct drm_device *drm_dev = pci_get_drvdata(pdev); 678 return nouveau_do_suspend(drm_dev, false); 679 } 680 681 static int 682 nouveau_pmops_thaw(struct device *dev) 683 { 684 struct pci_dev *pdev = to_pci_dev(dev); 685 struct drm_device *drm_dev = pci_get_drvdata(pdev); 686 return nouveau_do_resume(drm_dev, false); 687 } 688 689 static int 690 nouveau_pmops_runtime_suspend(struct device *dev) 691 { 692 struct pci_dev *pdev = to_pci_dev(dev); 693 struct drm_device *drm_dev = pci_get_drvdata(pdev); 694 int ret; 695 696 if (nouveau_runtime_pm == 0) { 697 pm_runtime_forbid(dev); 698 return -EBUSY; 699 } 700 701 /* are we optimus enabled? */ 702 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 703 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 704 pm_runtime_forbid(dev); 705 return -EBUSY; 706 } 707 708 drm_kms_helper_poll_disable(drm_dev); 709 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 710 nouveau_switcheroo_optimus_dsm(); 711 ret = nouveau_do_suspend(drm_dev, true); 712 pci_save_state(pdev); 713 pci_disable_device(pdev); 714 pci_ignore_hotplug(pdev); 715 pci_set_power_state(pdev, PCI_D3cold); 716 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 717 return ret; 718 } 719 720 static int 721 nouveau_pmops_runtime_resume(struct device *dev) 722 { 723 struct pci_dev *pdev = to_pci_dev(dev); 724 struct drm_device *drm_dev = pci_get_drvdata(pdev); 725 struct nvif_device *device = &nouveau_drm(drm_dev)->device; 726 int ret; 727 728 if (nouveau_runtime_pm == 0) 729 return -EINVAL; 730 731 pci_set_power_state(pdev, PCI_D0); 732 pci_restore_state(pdev); 733 ret = pci_enable_device(pdev); 734 if (ret) 735 return ret; 736 pci_set_master(pdev); 737 738 ret = nouveau_do_resume(drm_dev, true); 739 drm_kms_helper_poll_enable(drm_dev); 740 /* do magic */ 741 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 742 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 743 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 744 return ret; 745 } 746 747 static int 748 nouveau_pmops_runtime_idle(struct device *dev) 749 { 750 struct pci_dev *pdev = to_pci_dev(dev); 751 struct drm_device *drm_dev = pci_get_drvdata(pdev); 752 struct nouveau_drm *drm = nouveau_drm(drm_dev); 753 struct drm_crtc *crtc; 754 755 if (nouveau_runtime_pm == 0) { 756 pm_runtime_forbid(dev); 757 return -EBUSY; 758 } 759 760 /* are we optimus enabled? */ 761 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 762 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 763 pm_runtime_forbid(dev); 764 return -EBUSY; 765 } 766 767 /* if we have a hdmi audio device - make sure it has a driver loaded */ 768 if (drm->hdmi_device) { 769 if (!drm->hdmi_device->driver) { 770 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 771 pm_runtime_mark_last_busy(dev); 772 return -EBUSY; 773 } 774 } 775 776 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 777 if (crtc->enabled) { 778 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 779 return -EBUSY; 780 } 781 } 782 pm_runtime_mark_last_busy(dev); 783 pm_runtime_autosuspend(dev); 784 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 785 return 1; 786 } 787 788 static int 789 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 790 { 791 struct nouveau_drm *drm = nouveau_drm(dev); 792 struct nouveau_cli *cli; 793 char name[32], tmpname[TASK_COMM_LEN]; 794 int ret; 795 796 /* need to bring up power immediately if opening device */ 797 ret = pm_runtime_get_sync(dev->dev); 798 if (ret < 0 && ret != -EACCES) 799 return ret; 800 801 get_task_comm(tmpname, current); 802 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 803 804 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli); 805 806 if (ret) 807 goto out_suspend; 808 809 cli->base.super = false; 810 811 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 812 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 813 0x1000, NULL, &cli->vm); 814 if (ret) { 815 nouveau_cli_destroy(cli); 816 goto out_suspend; 817 } 818 819 nvxx_client(&cli->base)->vm = cli->vm; 820 } 821 822 fpriv->driver_priv = cli; 823 824 mutex_lock(&drm->client.mutex); 825 list_add(&cli->head, &drm->clients); 826 mutex_unlock(&drm->client.mutex); 827 828 out_suspend: 829 pm_runtime_mark_last_busy(dev->dev); 830 pm_runtime_put_autosuspend(dev->dev); 831 832 return ret; 833 } 834 835 static void 836 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) 837 { 838 struct nouveau_cli *cli = nouveau_cli(fpriv); 839 struct nouveau_drm *drm = nouveau_drm(dev); 840 841 pm_runtime_get_sync(dev->dev); 842 843 mutex_lock(&cli->mutex); 844 if (cli->abi16) 845 nouveau_abi16_fini(cli->abi16); 846 mutex_unlock(&cli->mutex); 847 848 mutex_lock(&drm->client.mutex); 849 list_del(&cli->head); 850 mutex_unlock(&drm->client.mutex); 851 852 } 853 854 static void 855 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 856 { 857 struct nouveau_cli *cli = nouveau_cli(fpriv); 858 nouveau_cli_destroy(cli); 859 pm_runtime_mark_last_busy(dev->dev); 860 pm_runtime_put_autosuspend(dev->dev); 861 } 862 863 static const struct drm_ioctl_desc 864 nouveau_ioctls[] = { 865 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 866 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 867 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 868 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 869 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 870 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 871 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 872 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 873 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 874 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 875 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 876 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 877 }; 878 879 long 880 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 881 { 882 struct drm_file *filp = file->private_data; 883 struct drm_device *dev = filp->minor->dev; 884 long ret; 885 886 ret = pm_runtime_get_sync(dev->dev); 887 if (ret < 0 && ret != -EACCES) 888 return ret; 889 890 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 891 case DRM_NOUVEAU_NVIF: 892 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 893 break; 894 default: 895 ret = drm_ioctl(file, cmd, arg); 896 break; 897 } 898 899 pm_runtime_mark_last_busy(dev->dev); 900 pm_runtime_put_autosuspend(dev->dev); 901 return ret; 902 } 903 904 static const struct file_operations 905 nouveau_driver_fops = { 906 .owner = THIS_MODULE, 907 .open = drm_open, 908 .release = drm_release, 909 .unlocked_ioctl = nouveau_drm_ioctl, 910 .mmap = nouveau_ttm_mmap, 911 .poll = drm_poll, 912 .read = drm_read, 913 #if defined(CONFIG_COMPAT) 914 .compat_ioctl = nouveau_compat_ioctl, 915 #endif 916 .llseek = noop_llseek, 917 }; 918 919 static struct drm_driver 920 driver_stub = { 921 .driver_features = 922 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 923 DRIVER_KMS_LEGACY_CONTEXT, 924 925 .load = nouveau_drm_load, 926 .unload = nouveau_drm_unload, 927 .open = nouveau_drm_open, 928 .preclose = nouveau_drm_preclose, 929 .postclose = nouveau_drm_postclose, 930 .lastclose = nouveau_vga_lastclose, 931 932 #if defined(CONFIG_DEBUG_FS) 933 .debugfs_init = nouveau_debugfs_init, 934 .debugfs_cleanup = nouveau_debugfs_takedown, 935 #endif 936 937 .get_vblank_counter = drm_vblank_count, 938 .enable_vblank = nouveau_display_vblank_enable, 939 .disable_vblank = nouveau_display_vblank_disable, 940 .get_scanout_position = nouveau_display_scanoutpos, 941 .get_vblank_timestamp = nouveau_display_vblstamp, 942 943 .ioctls = nouveau_ioctls, 944 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 945 .fops = &nouveau_driver_fops, 946 947 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 948 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 949 .gem_prime_export = drm_gem_prime_export, 950 .gem_prime_import = drm_gem_prime_import, 951 .gem_prime_pin = nouveau_gem_prime_pin, 952 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 953 .gem_prime_unpin = nouveau_gem_prime_unpin, 954 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 955 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 956 .gem_prime_vmap = nouveau_gem_prime_vmap, 957 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 958 959 .gem_free_object = nouveau_gem_object_del, 960 .gem_open_object = nouveau_gem_object_open, 961 .gem_close_object = nouveau_gem_object_close, 962 963 .dumb_create = nouveau_display_dumb_create, 964 .dumb_map_offset = nouveau_display_dumb_map_offset, 965 .dumb_destroy = drm_gem_dumb_destroy, 966 967 .name = DRIVER_NAME, 968 .desc = DRIVER_DESC, 969 #ifdef GIT_REVISION 970 .date = GIT_REVISION, 971 #else 972 .date = DRIVER_DATE, 973 #endif 974 .major = DRIVER_MAJOR, 975 .minor = DRIVER_MINOR, 976 .patchlevel = DRIVER_PATCHLEVEL, 977 }; 978 979 static struct pci_device_id 980 nouveau_drm_pci_table[] = { 981 { 982 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 983 .class = PCI_BASE_CLASS_DISPLAY << 16, 984 .class_mask = 0xff << 16, 985 }, 986 { 987 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 988 .class = PCI_BASE_CLASS_DISPLAY << 16, 989 .class_mask = 0xff << 16, 990 }, 991 {} 992 }; 993 994 static void nouveau_display_options(void) 995 { 996 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 997 998 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 999 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1000 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1001 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1002 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1003 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1004 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1005 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1006 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1007 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1008 DRM_DEBUG_DRIVER("... pstate : %d\n", nouveau_pstate); 1009 } 1010 1011 static const struct dev_pm_ops nouveau_pm_ops = { 1012 .suspend = nouveau_pmops_suspend, 1013 .resume = nouveau_pmops_resume, 1014 .freeze = nouveau_pmops_freeze, 1015 .thaw = nouveau_pmops_thaw, 1016 .poweroff = nouveau_pmops_freeze, 1017 .restore = nouveau_pmops_resume, 1018 .runtime_suspend = nouveau_pmops_runtime_suspend, 1019 .runtime_resume = nouveau_pmops_runtime_resume, 1020 .runtime_idle = nouveau_pmops_runtime_idle, 1021 }; 1022 1023 static struct pci_driver 1024 nouveau_drm_pci_driver = { 1025 .name = "nouveau", 1026 .id_table = nouveau_drm_pci_table, 1027 .probe = nouveau_drm_probe, 1028 .remove = nouveau_drm_remove, 1029 .driver.pm = &nouveau_pm_ops, 1030 }; 1031 1032 struct drm_device * 1033 nouveau_platform_device_create(struct platform_device *pdev, 1034 struct nvkm_device **pdevice) 1035 { 1036 struct drm_device *drm; 1037 int err; 1038 1039 err = nvkm_device_tegra_new(pdev, nouveau_config, nouveau_debug, 1040 true, true, ~0ULL, pdevice); 1041 if (err) 1042 goto err_free; 1043 1044 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1045 if (!drm) { 1046 err = -ENOMEM; 1047 goto err_free; 1048 } 1049 1050 err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev)); 1051 if (err < 0) 1052 goto err_free; 1053 1054 drm->platformdev = pdev; 1055 platform_set_drvdata(pdev, drm); 1056 1057 return drm; 1058 1059 err_free: 1060 nvkm_device_del(pdevice); 1061 1062 return ERR_PTR(err); 1063 } 1064 1065 static int __init 1066 nouveau_drm_init(void) 1067 { 1068 driver_pci = driver_stub; 1069 driver_pci.set_busid = drm_pci_set_busid; 1070 driver_platform = driver_stub; 1071 driver_platform.set_busid = drm_platform_set_busid; 1072 1073 nouveau_display_options(); 1074 1075 if (nouveau_modeset == -1) { 1076 #ifdef CONFIG_VGA_CONSOLE 1077 if (vgacon_text_force()) 1078 nouveau_modeset = 0; 1079 #endif 1080 } 1081 1082 if (!nouveau_modeset) 1083 return 0; 1084 1085 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1086 platform_driver_register(&nouveau_platform_driver); 1087 #endif 1088 1089 nouveau_register_dsm_handler(); 1090 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1091 } 1092 1093 static void __exit 1094 nouveau_drm_exit(void) 1095 { 1096 if (!nouveau_modeset) 1097 return; 1098 1099 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1100 nouveau_unregister_dsm_handler(); 1101 1102 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1103 platform_driver_unregister(&nouveau_platform_driver); 1104 #endif 1105 } 1106 1107 module_init(nouveau_drm_init); 1108 module_exit(nouveau_drm_exit); 1109 1110 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1111 MODULE_AUTHOR(DRIVER_AUTHOR); 1112 MODULE_DESCRIPTION(DRIVER_DESC); 1113 MODULE_LICENSE("GPL and additional rights"); 1114