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 <nvif/class.h> 41 #include <nvif/cl0002.h> 42 #include <nvif/cla06f.h> 43 #include <nvif/if0004.h> 44 45 #include "nouveau_drm.h" 46 #include "nouveau_dma.h" 47 #include "nouveau_ttm.h" 48 #include "nouveau_gem.h" 49 #include "nouveau_vga.h" 50 #include "nouveau_hwmon.h" 51 #include "nouveau_acpi.h" 52 #include "nouveau_bios.h" 53 #include "nouveau_ioctl.h" 54 #include "nouveau_abi16.h" 55 #include "nouveau_fbcon.h" 56 #include "nouveau_fence.h" 57 #include "nouveau_debugfs.h" 58 #include "nouveau_usif.h" 59 #include "nouveau_connector.h" 60 #include "nouveau_platform.h" 61 62 MODULE_PARM_DESC(config, "option string to pass to driver core"); 63 static char *nouveau_config; 64 module_param_named(config, nouveau_config, charp, 0400); 65 66 MODULE_PARM_DESC(debug, "debug string to pass to driver core"); 67 static char *nouveau_debug; 68 module_param_named(debug, nouveau_debug, charp, 0400); 69 70 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); 71 static int nouveau_noaccel = 0; 72 module_param_named(noaccel, nouveau_noaccel, int, 0400); 73 74 MODULE_PARM_DESC(modeset, "enable driver (default: auto, " 75 "0 = disabled, 1 = enabled, 2 = headless)"); 76 int nouveau_modeset = -1; 77 module_param_named(modeset, nouveau_modeset, int, 0400); 78 79 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); 80 int nouveau_runtime_pm = -1; 81 module_param_named(runpm, nouveau_runtime_pm, int, 0400); 82 83 static struct drm_driver driver_stub; 84 static struct drm_driver driver_pci; 85 static struct drm_driver driver_platform; 86 87 static u64 88 nouveau_pci_name(struct pci_dev *pdev) 89 { 90 u64 name = (u64)pci_domain_nr(pdev->bus) << 32; 91 name |= pdev->bus->number << 16; 92 name |= PCI_SLOT(pdev->devfn) << 8; 93 return name | PCI_FUNC(pdev->devfn); 94 } 95 96 static u64 97 nouveau_platform_name(struct platform_device *platformdev) 98 { 99 return platformdev->id; 100 } 101 102 static u64 103 nouveau_name(struct drm_device *dev) 104 { 105 if (dev->pdev) 106 return nouveau_pci_name(dev->pdev); 107 else 108 return nouveau_platform_name(dev->platformdev); 109 } 110 111 static int 112 nouveau_cli_create(struct drm_device *dev, const char *sname, 113 int size, void **pcli) 114 { 115 struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL); 116 int ret; 117 if (cli) { 118 snprintf(cli->name, sizeof(cli->name), "%s", sname); 119 cli->dev = dev; 120 121 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev), 122 nouveau_config, nouveau_debug, 123 &cli->base); 124 if (ret == 0) { 125 mutex_init(&cli->mutex); 126 usif_client_init(cli); 127 } 128 return ret; 129 } 130 return -ENOMEM; 131 } 132 133 static void 134 nouveau_cli_destroy(struct nouveau_cli *cli) 135 { 136 nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL); 137 nvif_client_fini(&cli->base); 138 usif_client_fini(cli); 139 kfree(cli); 140 } 141 142 static void 143 nouveau_accel_fini(struct nouveau_drm *drm) 144 { 145 nouveau_channel_idle(drm->channel); 146 nvif_object_fini(&drm->ntfy); 147 nvkm_gpuobj_del(&drm->notify); 148 nvif_notify_fini(&drm->flip); 149 nvif_object_fini(&drm->nvsw); 150 nouveau_channel_del(&drm->channel); 151 152 nouveau_channel_idle(drm->cechan); 153 nvif_object_fini(&drm->ttm.copy); 154 nouveau_channel_del(&drm->cechan); 155 156 if (drm->fence) 157 nouveau_fence(drm)->dtor(drm); 158 } 159 160 static void 161 nouveau_accel_init(struct nouveau_drm *drm) 162 { 163 struct nvif_device *device = &drm->device; 164 struct nvif_sclass *sclass; 165 u32 arg0, arg1; 166 int ret, i, n; 167 168 if (nouveau_noaccel) 169 return; 170 171 /* initialise synchronisation routines */ 172 /*XXX: this is crap, but the fence/channel stuff is a little 173 * backwards in some places. this will be fixed. 174 */ 175 ret = n = nvif_object_sclass_get(&device->object, &sclass); 176 if (ret < 0) 177 return; 178 179 for (ret = -ENOSYS, i = 0; i < n; i++) { 180 switch (sclass[i].oclass) { 181 case NV03_CHANNEL_DMA: 182 ret = nv04_fence_create(drm); 183 break; 184 case NV10_CHANNEL_DMA: 185 ret = nv10_fence_create(drm); 186 break; 187 case NV17_CHANNEL_DMA: 188 case NV40_CHANNEL_DMA: 189 ret = nv17_fence_create(drm); 190 break; 191 case NV50_CHANNEL_GPFIFO: 192 ret = nv50_fence_create(drm); 193 break; 194 case G82_CHANNEL_GPFIFO: 195 ret = nv84_fence_create(drm); 196 break; 197 case FERMI_CHANNEL_GPFIFO: 198 case KEPLER_CHANNEL_GPFIFO_A: 199 case MAXWELL_CHANNEL_GPFIFO_A: 200 ret = nvc0_fence_create(drm); 201 break; 202 default: 203 break; 204 } 205 } 206 207 nvif_object_sclass_put(&sclass); 208 if (ret) { 209 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 210 nouveau_accel_fini(drm); 211 return; 212 } 213 214 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 215 ret = nouveau_channel_new(drm, &drm->device, 216 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0| 217 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1, 218 0, &drm->cechan); 219 if (ret) 220 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 221 222 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR; 223 arg1 = 1; 224 } else 225 if (device->info.chipset >= 0xa3 && 226 device->info.chipset != 0xaa && 227 device->info.chipset != 0xac) { 228 ret = nouveau_channel_new(drm, &drm->device, 229 NvDmaFB, NvDmaTT, &drm->cechan); 230 if (ret) 231 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 232 233 arg0 = NvDmaFB; 234 arg1 = NvDmaTT; 235 } else { 236 arg0 = NvDmaFB; 237 arg1 = NvDmaTT; 238 } 239 240 ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel); 241 if (ret) { 242 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 243 nouveau_accel_fini(drm); 244 return; 245 } 246 247 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 248 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 249 if (ret == 0) { 250 ret = RING_SPACE(drm->channel, 2); 251 if (ret == 0) { 252 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 253 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 254 OUT_RING (drm->channel, NVDRM_NVSW); 255 } else 256 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 257 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 258 OUT_RING (drm->channel, 0x001f0000); 259 } 260 } 261 262 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete, 263 false, NV04_NVSW_NTFY_UEVENT, 264 NULL, 0, 0, &drm->flip); 265 if (ret == 0) 266 ret = nvif_notify_get(&drm->flip); 267 if (ret) { 268 nouveau_accel_fini(drm); 269 return; 270 } 271 } 272 273 if (ret) { 274 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 275 nouveau_accel_fini(drm); 276 return; 277 } 278 279 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 280 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false, 281 NULL, &drm->notify); 282 if (ret) { 283 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 284 nouveau_accel_fini(drm); 285 return; 286 } 287 288 ret = nvif_object_init(&drm->channel->user, NvNotify0, 289 NV_DMA_IN_MEMORY, 290 &(struct nv_dma_v0) { 291 .target = NV_DMA_V0_TARGET_VRAM, 292 .access = NV_DMA_V0_ACCESS_RDWR, 293 .start = drm->notify->addr, 294 .limit = drm->notify->addr + 31 295 }, sizeof(struct nv_dma_v0), 296 &drm->ntfy); 297 if (ret) { 298 nouveau_accel_fini(drm); 299 return; 300 } 301 } 302 303 304 nouveau_bo_move_init(drm); 305 } 306 307 static int nouveau_drm_probe(struct pci_dev *pdev, 308 const struct pci_device_id *pent) 309 { 310 struct nvkm_device *device; 311 struct apertures_struct *aper; 312 bool boot = false; 313 int ret; 314 315 /* remove conflicting drivers (vesafb, efifb etc) */ 316 aper = alloc_apertures(3); 317 if (!aper) 318 return -ENOMEM; 319 320 aper->ranges[0].base = pci_resource_start(pdev, 1); 321 aper->ranges[0].size = pci_resource_len(pdev, 1); 322 aper->count = 1; 323 324 if (pci_resource_len(pdev, 2)) { 325 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 326 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 327 aper->count++; 328 } 329 330 if (pci_resource_len(pdev, 3)) { 331 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 332 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 333 aper->count++; 334 } 335 336 #ifdef CONFIG_X86 337 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 338 #endif 339 if (nouveau_modeset != 2) 340 remove_conflicting_framebuffers(aper, "nouveaufb", boot); 341 kfree(aper); 342 343 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 344 true, true, ~0ULL, &device); 345 if (ret) 346 return ret; 347 348 pci_set_master(pdev); 349 350 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 351 if (ret) { 352 nvkm_device_del(&device); 353 return ret; 354 } 355 356 return 0; 357 } 358 359 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 360 361 static void 362 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 363 { 364 struct pci_dev *pdev = drm->dev->pdev; 365 366 if (!pdev) { 367 DRM_INFO("not a PCI device; no HDMI\n"); 368 drm->hdmi_device = NULL; 369 return; 370 } 371 372 /* subfunction one is a hdmi audio device? */ 373 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 374 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 375 376 if (!drm->hdmi_device) { 377 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 378 return; 379 } 380 381 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 382 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 383 pci_dev_put(drm->hdmi_device); 384 drm->hdmi_device = NULL; 385 return; 386 } 387 } 388 389 static int 390 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 391 { 392 struct nouveau_drm *drm; 393 int ret; 394 395 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm); 396 if (ret) 397 return ret; 398 399 dev->dev_private = drm; 400 drm->dev = dev; 401 nvxx_client(&drm->client.base)->debug = 402 nvkm_dbgopt(nouveau_debug, "DRM"); 403 404 INIT_LIST_HEAD(&drm->clients); 405 spin_lock_init(&drm->tile.lock); 406 407 nouveau_get_hdmi_dev(drm); 408 409 ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE, 410 &(struct nv_device_v0) { 411 .device = ~0, 412 }, sizeof(struct nv_device_v0), 413 &drm->device); 414 if (ret) 415 goto fail_device; 416 417 dev->irq_enabled = true; 418 419 /* workaround an odd issue on nvc1 by disabling the device's 420 * nosnoop capability. hopefully won't cause issues until a 421 * better fix is found - assuming there is one... 422 */ 423 if (drm->device.info.chipset == 0xc1) 424 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000); 425 426 nouveau_vga_init(drm); 427 428 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 429 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 430 0x1000, NULL, &drm->client.vm); 431 if (ret) 432 goto fail_device; 433 434 nvxx_client(&drm->client.base)->vm = drm->client.vm; 435 } 436 437 ret = nouveau_ttm_init(drm); 438 if (ret) 439 goto fail_ttm; 440 441 ret = nouveau_bios_init(dev); 442 if (ret) 443 goto fail_bios; 444 445 ret = nouveau_display_create(dev); 446 if (ret) 447 goto fail_dispctor; 448 449 if (dev->mode_config.num_crtc) { 450 ret = nouveau_display_init(dev); 451 if (ret) 452 goto fail_dispinit; 453 } 454 455 nouveau_debugfs_init(drm); 456 nouveau_hwmon_init(dev); 457 nouveau_accel_init(drm); 458 nouveau_fbcon_init(dev); 459 460 if (nouveau_runtime_pm != 0) { 461 pm_runtime_use_autosuspend(dev->dev); 462 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 463 pm_runtime_set_active(dev->dev); 464 pm_runtime_allow(dev->dev); 465 pm_runtime_mark_last_busy(dev->dev); 466 pm_runtime_put(dev->dev); 467 } 468 return 0; 469 470 fail_dispinit: 471 nouveau_display_destroy(dev); 472 fail_dispctor: 473 nouveau_bios_takedown(dev); 474 fail_bios: 475 nouveau_ttm_fini(drm); 476 fail_ttm: 477 nouveau_vga_fini(drm); 478 fail_device: 479 nvif_device_fini(&drm->device); 480 nouveau_cli_destroy(&drm->client); 481 return ret; 482 } 483 484 static int 485 nouveau_drm_unload(struct drm_device *dev) 486 { 487 struct nouveau_drm *drm = nouveau_drm(dev); 488 489 pm_runtime_get_sync(dev->dev); 490 nouveau_fbcon_fini(dev); 491 nouveau_accel_fini(drm); 492 nouveau_hwmon_fini(dev); 493 nouveau_debugfs_fini(drm); 494 495 if (dev->mode_config.num_crtc) 496 nouveau_display_fini(dev); 497 nouveau_display_destroy(dev); 498 499 nouveau_bios_takedown(dev); 500 501 nouveau_ttm_fini(drm); 502 nouveau_vga_fini(drm); 503 504 nvif_device_fini(&drm->device); 505 if (drm->hdmi_device) 506 pci_dev_put(drm->hdmi_device); 507 nouveau_cli_destroy(&drm->client); 508 return 0; 509 } 510 511 void 512 nouveau_drm_device_remove(struct drm_device *dev) 513 { 514 struct nouveau_drm *drm = nouveau_drm(dev); 515 struct nvkm_client *client; 516 struct nvkm_device *device; 517 518 dev->irq_enabled = false; 519 client = nvxx_client(&drm->client.base); 520 device = nvkm_device_find(client->device); 521 drm_put_dev(dev); 522 523 nvkm_device_del(&device); 524 } 525 526 static void 527 nouveau_drm_remove(struct pci_dev *pdev) 528 { 529 struct drm_device *dev = pci_get_drvdata(pdev); 530 531 nouveau_drm_device_remove(dev); 532 } 533 534 static int 535 nouveau_do_suspend(struct drm_device *dev, bool runtime) 536 { 537 struct nouveau_drm *drm = nouveau_drm(dev); 538 struct nouveau_cli *cli; 539 int ret; 540 541 if (dev->mode_config.num_crtc) { 542 NV_INFO(drm, "suspending console...\n"); 543 nouveau_fbcon_set_suspend(dev, 1); 544 NV_INFO(drm, "suspending display...\n"); 545 ret = nouveau_display_suspend(dev, runtime); 546 if (ret) 547 return ret; 548 } 549 550 NV_INFO(drm, "evicting buffers...\n"); 551 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 552 553 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 554 if (drm->cechan) { 555 ret = nouveau_channel_idle(drm->cechan); 556 if (ret) 557 goto fail_display; 558 } 559 560 if (drm->channel) { 561 ret = nouveau_channel_idle(drm->channel); 562 if (ret) 563 goto fail_display; 564 } 565 566 NV_INFO(drm, "suspending client object trees...\n"); 567 if (drm->fence && nouveau_fence(drm)->suspend) { 568 if (!nouveau_fence(drm)->suspend(drm)) { 569 ret = -ENOMEM; 570 goto fail_display; 571 } 572 } 573 574 list_for_each_entry(cli, &drm->clients, head) { 575 ret = nvif_client_suspend(&cli->base); 576 if (ret) 577 goto fail_client; 578 } 579 580 NV_INFO(drm, "suspending kernel object tree...\n"); 581 ret = nvif_client_suspend(&drm->client.base); 582 if (ret) 583 goto fail_client; 584 585 return 0; 586 587 fail_client: 588 list_for_each_entry_continue_reverse(cli, &drm->clients, head) { 589 nvif_client_resume(&cli->base); 590 } 591 592 if (drm->fence && nouveau_fence(drm)->resume) 593 nouveau_fence(drm)->resume(drm); 594 595 fail_display: 596 if (dev->mode_config.num_crtc) { 597 NV_INFO(drm, "resuming display...\n"); 598 nouveau_display_resume(dev, runtime); 599 } 600 return ret; 601 } 602 603 static int 604 nouveau_do_resume(struct drm_device *dev, bool runtime) 605 { 606 struct nouveau_drm *drm = nouveau_drm(dev); 607 struct nouveau_cli *cli; 608 609 NV_INFO(drm, "resuming kernel object tree...\n"); 610 nvif_client_resume(&drm->client.base); 611 612 NV_INFO(drm, "resuming client object trees...\n"); 613 if (drm->fence && nouveau_fence(drm)->resume) 614 nouveau_fence(drm)->resume(drm); 615 616 list_for_each_entry(cli, &drm->clients, head) { 617 nvif_client_resume(&cli->base); 618 } 619 620 nouveau_run_vbios_init(dev); 621 622 if (dev->mode_config.num_crtc) { 623 NV_INFO(drm, "resuming display...\n"); 624 nouveau_display_resume(dev, runtime); 625 NV_INFO(drm, "resuming console...\n"); 626 nouveau_fbcon_set_suspend(dev, 0); 627 } 628 629 return 0; 630 } 631 632 int 633 nouveau_pmops_suspend(struct device *dev) 634 { 635 struct pci_dev *pdev = to_pci_dev(dev); 636 struct drm_device *drm_dev = pci_get_drvdata(pdev); 637 int ret; 638 639 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 640 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 641 return 0; 642 643 ret = nouveau_do_suspend(drm_dev, false); 644 if (ret) 645 return ret; 646 647 pci_save_state(pdev); 648 pci_disable_device(pdev); 649 pci_set_power_state(pdev, PCI_D3hot); 650 udelay(200); 651 return 0; 652 } 653 654 int 655 nouveau_pmops_resume(struct device *dev) 656 { 657 struct pci_dev *pdev = to_pci_dev(dev); 658 struct drm_device *drm_dev = pci_get_drvdata(pdev); 659 int ret; 660 661 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 662 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 663 return 0; 664 665 pci_set_power_state(pdev, PCI_D0); 666 pci_restore_state(pdev); 667 ret = pci_enable_device(pdev); 668 if (ret) 669 return ret; 670 pci_set_master(pdev); 671 672 return nouveau_do_resume(drm_dev, false); 673 } 674 675 static int 676 nouveau_pmops_freeze(struct device *dev) 677 { 678 struct pci_dev *pdev = to_pci_dev(dev); 679 struct drm_device *drm_dev = pci_get_drvdata(pdev); 680 return nouveau_do_suspend(drm_dev, false); 681 } 682 683 static int 684 nouveau_pmops_thaw(struct device *dev) 685 { 686 struct pci_dev *pdev = to_pci_dev(dev); 687 struct drm_device *drm_dev = pci_get_drvdata(pdev); 688 return nouveau_do_resume(drm_dev, false); 689 } 690 691 static int 692 nouveau_pmops_runtime_suspend(struct device *dev) 693 { 694 struct pci_dev *pdev = to_pci_dev(dev); 695 struct drm_device *drm_dev = pci_get_drvdata(pdev); 696 int ret; 697 698 if (nouveau_runtime_pm == 0) { 699 pm_runtime_forbid(dev); 700 return -EBUSY; 701 } 702 703 /* are we optimus enabled? */ 704 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 705 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 706 pm_runtime_forbid(dev); 707 return -EBUSY; 708 } 709 710 drm_kms_helper_poll_disable(drm_dev); 711 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 712 nouveau_switcheroo_optimus_dsm(); 713 ret = nouveau_do_suspend(drm_dev, true); 714 pci_save_state(pdev); 715 pci_disable_device(pdev); 716 pci_ignore_hotplug(pdev); 717 pci_set_power_state(pdev, PCI_D3cold); 718 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 719 return ret; 720 } 721 722 static int 723 nouveau_pmops_runtime_resume(struct device *dev) 724 { 725 struct pci_dev *pdev = to_pci_dev(dev); 726 struct drm_device *drm_dev = pci_get_drvdata(pdev); 727 struct nvif_device *device = &nouveau_drm(drm_dev)->device; 728 int ret; 729 730 if (nouveau_runtime_pm == 0) 731 return -EINVAL; 732 733 pci_set_power_state(pdev, PCI_D0); 734 pci_restore_state(pdev); 735 ret = pci_enable_device(pdev); 736 if (ret) 737 return ret; 738 pci_set_master(pdev); 739 740 ret = nouveau_do_resume(drm_dev, true); 741 drm_kms_helper_poll_enable(drm_dev); 742 /* do magic */ 743 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 744 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 745 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 746 return ret; 747 } 748 749 static int 750 nouveau_pmops_runtime_idle(struct device *dev) 751 { 752 struct pci_dev *pdev = to_pci_dev(dev); 753 struct drm_device *drm_dev = pci_get_drvdata(pdev); 754 struct nouveau_drm *drm = nouveau_drm(drm_dev); 755 struct drm_crtc *crtc; 756 757 if (nouveau_runtime_pm == 0) { 758 pm_runtime_forbid(dev); 759 return -EBUSY; 760 } 761 762 /* are we optimus enabled? */ 763 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 764 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 765 pm_runtime_forbid(dev); 766 return -EBUSY; 767 } 768 769 /* if we have a hdmi audio device - make sure it has a driver loaded */ 770 if (drm->hdmi_device) { 771 if (!drm->hdmi_device->driver) { 772 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 773 pm_runtime_mark_last_busy(dev); 774 return -EBUSY; 775 } 776 } 777 778 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 779 if (crtc->enabled) { 780 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 781 return -EBUSY; 782 } 783 } 784 pm_runtime_mark_last_busy(dev); 785 pm_runtime_autosuspend(dev); 786 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 787 return 1; 788 } 789 790 static int 791 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 792 { 793 struct nouveau_drm *drm = nouveau_drm(dev); 794 struct nouveau_cli *cli; 795 char name[32], tmpname[TASK_COMM_LEN]; 796 int ret; 797 798 /* need to bring up power immediately if opening device */ 799 ret = pm_runtime_get_sync(dev->dev); 800 if (ret < 0 && ret != -EACCES) 801 return ret; 802 803 get_task_comm(tmpname, current); 804 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 805 806 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli); 807 808 if (ret) 809 goto out_suspend; 810 811 cli->base.super = false; 812 813 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 814 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 815 0x1000, NULL, &cli->vm); 816 if (ret) { 817 nouveau_cli_destroy(cli); 818 goto out_suspend; 819 } 820 821 nvxx_client(&cli->base)->vm = cli->vm; 822 } 823 824 fpriv->driver_priv = cli; 825 826 mutex_lock(&drm->client.mutex); 827 list_add(&cli->head, &drm->clients); 828 mutex_unlock(&drm->client.mutex); 829 830 out_suspend: 831 pm_runtime_mark_last_busy(dev->dev); 832 pm_runtime_put_autosuspend(dev->dev); 833 834 return ret; 835 } 836 837 static void 838 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) 839 { 840 struct nouveau_cli *cli = nouveau_cli(fpriv); 841 struct nouveau_drm *drm = nouveau_drm(dev); 842 843 pm_runtime_get_sync(dev->dev); 844 845 mutex_lock(&cli->mutex); 846 if (cli->abi16) 847 nouveau_abi16_fini(cli->abi16); 848 mutex_unlock(&cli->mutex); 849 850 mutex_lock(&drm->client.mutex); 851 list_del(&cli->head); 852 mutex_unlock(&drm->client.mutex); 853 854 } 855 856 static void 857 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 858 { 859 struct nouveau_cli *cli = nouveau_cli(fpriv); 860 nouveau_cli_destroy(cli); 861 pm_runtime_mark_last_busy(dev->dev); 862 pm_runtime_put_autosuspend(dev->dev); 863 } 864 865 static const struct drm_ioctl_desc 866 nouveau_ioctls[] = { 867 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 868 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 869 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 870 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 871 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 872 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 873 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 874 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 875 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 876 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 877 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 878 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 879 }; 880 881 long 882 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 883 { 884 struct drm_file *filp = file->private_data; 885 struct drm_device *dev = filp->minor->dev; 886 long ret; 887 888 ret = pm_runtime_get_sync(dev->dev); 889 if (ret < 0 && ret != -EACCES) 890 return ret; 891 892 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 893 case DRM_NOUVEAU_NVIF: 894 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 895 break; 896 default: 897 ret = drm_ioctl(file, cmd, arg); 898 break; 899 } 900 901 pm_runtime_mark_last_busy(dev->dev); 902 pm_runtime_put_autosuspend(dev->dev); 903 return ret; 904 } 905 906 static const struct file_operations 907 nouveau_driver_fops = { 908 .owner = THIS_MODULE, 909 .open = drm_open, 910 .release = drm_release, 911 .unlocked_ioctl = nouveau_drm_ioctl, 912 .mmap = nouveau_ttm_mmap, 913 .poll = drm_poll, 914 .read = drm_read, 915 #if defined(CONFIG_COMPAT) 916 .compat_ioctl = nouveau_compat_ioctl, 917 #endif 918 .llseek = noop_llseek, 919 }; 920 921 static struct drm_driver 922 driver_stub = { 923 .driver_features = 924 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 925 DRIVER_KMS_LEGACY_CONTEXT, 926 927 .load = nouveau_drm_load, 928 .unload = nouveau_drm_unload, 929 .open = nouveau_drm_open, 930 .preclose = nouveau_drm_preclose, 931 .postclose = nouveau_drm_postclose, 932 .lastclose = nouveau_vga_lastclose, 933 934 #if defined(CONFIG_DEBUG_FS) 935 .debugfs_init = nouveau_drm_debugfs_init, 936 .debugfs_cleanup = nouveau_drm_debugfs_cleanup, 937 #endif 938 939 .get_vblank_counter = drm_vblank_no_hw_counter, 940 .enable_vblank = nouveau_display_vblank_enable, 941 .disable_vblank = nouveau_display_vblank_disable, 942 .get_scanout_position = nouveau_display_scanoutpos, 943 .get_vblank_timestamp = nouveau_display_vblstamp, 944 945 .ioctls = nouveau_ioctls, 946 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 947 .fops = &nouveau_driver_fops, 948 949 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 950 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 951 .gem_prime_export = drm_gem_prime_export, 952 .gem_prime_import = drm_gem_prime_import, 953 .gem_prime_pin = nouveau_gem_prime_pin, 954 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 955 .gem_prime_unpin = nouveau_gem_prime_unpin, 956 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 957 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 958 .gem_prime_vmap = nouveau_gem_prime_vmap, 959 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 960 961 .gem_free_object = nouveau_gem_object_del, 962 .gem_open_object = nouveau_gem_object_open, 963 .gem_close_object = nouveau_gem_object_close, 964 965 .dumb_create = nouveau_display_dumb_create, 966 .dumb_map_offset = nouveau_display_dumb_map_offset, 967 .dumb_destroy = drm_gem_dumb_destroy, 968 969 .name = DRIVER_NAME, 970 .desc = DRIVER_DESC, 971 #ifdef GIT_REVISION 972 .date = GIT_REVISION, 973 #else 974 .date = DRIVER_DATE, 975 #endif 976 .major = DRIVER_MAJOR, 977 .minor = DRIVER_MINOR, 978 .patchlevel = DRIVER_PATCHLEVEL, 979 }; 980 981 static struct pci_device_id 982 nouveau_drm_pci_table[] = { 983 { 984 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 985 .class = PCI_BASE_CLASS_DISPLAY << 16, 986 .class_mask = 0xff << 16, 987 }, 988 { 989 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 990 .class = PCI_BASE_CLASS_DISPLAY << 16, 991 .class_mask = 0xff << 16, 992 }, 993 {} 994 }; 995 996 static void nouveau_display_options(void) 997 { 998 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 999 1000 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1001 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1002 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1003 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1004 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1005 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1006 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1007 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1008 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1009 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1010 } 1011 1012 static const struct dev_pm_ops nouveau_pm_ops = { 1013 .suspend = nouveau_pmops_suspend, 1014 .resume = nouveau_pmops_resume, 1015 .freeze = nouveau_pmops_freeze, 1016 .thaw = nouveau_pmops_thaw, 1017 .poweroff = nouveau_pmops_freeze, 1018 .restore = nouveau_pmops_resume, 1019 .runtime_suspend = nouveau_pmops_runtime_suspend, 1020 .runtime_resume = nouveau_pmops_runtime_resume, 1021 .runtime_idle = nouveau_pmops_runtime_idle, 1022 }; 1023 1024 static struct pci_driver 1025 nouveau_drm_pci_driver = { 1026 .name = "nouveau", 1027 .id_table = nouveau_drm_pci_table, 1028 .probe = nouveau_drm_probe, 1029 .remove = nouveau_drm_remove, 1030 .driver.pm = &nouveau_pm_ops, 1031 }; 1032 1033 struct drm_device * 1034 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1035 struct platform_device *pdev, 1036 struct nvkm_device **pdevice) 1037 { 1038 struct drm_device *drm; 1039 int err; 1040 1041 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1042 true, true, ~0ULL, pdevice); 1043 if (err) 1044 goto err_free; 1045 1046 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1047 if (!drm) { 1048 err = -ENOMEM; 1049 goto err_free; 1050 } 1051 1052 drm->platformdev = pdev; 1053 platform_set_drvdata(pdev, drm); 1054 1055 return drm; 1056 1057 err_free: 1058 nvkm_device_del(pdevice); 1059 1060 return ERR_PTR(err); 1061 } 1062 1063 static int __init 1064 nouveau_drm_init(void) 1065 { 1066 driver_pci = driver_stub; 1067 driver_pci.set_busid = drm_pci_set_busid; 1068 driver_platform = driver_stub; 1069 driver_platform.set_busid = drm_platform_set_busid; 1070 1071 nouveau_display_options(); 1072 1073 if (nouveau_modeset == -1) { 1074 #ifdef CONFIG_VGA_CONSOLE 1075 if (vgacon_text_force()) 1076 nouveau_modeset = 0; 1077 #endif 1078 } 1079 1080 if (!nouveau_modeset) 1081 return 0; 1082 1083 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1084 platform_driver_register(&nouveau_platform_driver); 1085 #endif 1086 1087 nouveau_register_dsm_handler(); 1088 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1089 } 1090 1091 static void __exit 1092 nouveau_drm_exit(void) 1093 { 1094 if (!nouveau_modeset) 1095 return; 1096 1097 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1098 nouveau_unregister_dsm_handler(); 1099 1100 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1101 platform_driver_unregister(&nouveau_platform_driver); 1102 #endif 1103 } 1104 1105 module_init(nouveau_drm_init); 1106 module_exit(nouveau_drm_exit); 1107 1108 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1109 MODULE_AUTHOR(DRIVER_AUTHOR); 1110 MODULE_DESCRIPTION(DRIVER_DESC); 1111 MODULE_LICENSE("GPL and additional rights"); 1112