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/device.h> 36 #include <core/gpuobj.h> 37 #include <core/option.h> 38 39 #include "nouveau_drm.h" 40 #include "nouveau_dma.h" 41 #include "nouveau_ttm.h" 42 #include "nouveau_gem.h" 43 #include "nouveau_agp.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_del(&drm->channel); 142 nvif_object_fini(&drm->ntfy); 143 nvkm_gpuobj_ref(NULL, &drm->notify); 144 nvif_object_fini(&drm->nvsw); 145 nouveau_channel_del(&drm->cechan); 146 nvif_object_fini(&drm->ttm.copy); 147 if (drm->fence) 148 nouveau_fence(drm)->dtor(drm); 149 } 150 151 static void 152 nouveau_accel_init(struct nouveau_drm *drm) 153 { 154 struct nvif_device *device = &drm->device; 155 struct nvif_sclass *sclass; 156 u32 arg0, arg1; 157 int ret, i, n; 158 159 if (nouveau_noaccel) 160 return; 161 162 /* initialise synchronisation routines */ 163 /*XXX: this is crap, but the fence/channel stuff is a little 164 * backwards in some places. this will be fixed. 165 */ 166 ret = n = nvif_object_sclass_get(&device->object, &sclass); 167 if (ret < 0) 168 return; 169 170 for (ret = -ENOSYS, i = 0; i < n; i++) { 171 switch (sclass[i].oclass) { 172 case NV03_CHANNEL_DMA: 173 ret = nv04_fence_create(drm); 174 break; 175 case NV10_CHANNEL_DMA: 176 ret = nv10_fence_create(drm); 177 break; 178 case NV17_CHANNEL_DMA: 179 case NV40_CHANNEL_DMA: 180 ret = nv17_fence_create(drm); 181 break; 182 case NV50_CHANNEL_GPFIFO: 183 ret = nv50_fence_create(drm); 184 break; 185 case G82_CHANNEL_GPFIFO: 186 ret = nv84_fence_create(drm); 187 break; 188 case FERMI_CHANNEL_GPFIFO: 189 case KEPLER_CHANNEL_GPFIFO_A: 190 case MAXWELL_CHANNEL_GPFIFO_A: 191 ret = nvc0_fence_create(drm); 192 break; 193 default: 194 break; 195 } 196 } 197 198 nvif_object_sclass_put(&sclass); 199 if (ret) { 200 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 201 nouveau_accel_fini(drm); 202 return; 203 } 204 205 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 206 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1, 207 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0| 208 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1, 209 0, &drm->cechan); 210 if (ret) 211 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 212 213 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR; 214 arg1 = 1; 215 } else 216 if (device->info.chipset >= 0xa3 && 217 device->info.chipset != 0xaa && 218 device->info.chipset != 0xac) { 219 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1, 220 NvDmaFB, NvDmaTT, &drm->cechan); 221 if (ret) 222 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 223 224 arg0 = NvDmaFB; 225 arg1 = NvDmaTT; 226 } else { 227 arg0 = NvDmaFB; 228 arg1 = NvDmaTT; 229 } 230 231 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1, 232 &drm->channel); 233 if (ret) { 234 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 235 nouveau_accel_fini(drm); 236 return; 237 } 238 239 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 240 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 241 if (ret == 0) { 242 struct nvkm_sw_chan *swch; 243 ret = RING_SPACE(drm->channel, 2); 244 if (ret == 0) { 245 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 246 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 247 OUT_RING (drm->channel, NVDRM_NVSW); 248 } else 249 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 250 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 251 OUT_RING (drm->channel, 0x001f0000); 252 } 253 } 254 swch = (void *)nvxx_object(&drm->nvsw)->parent; 255 swch->flip = nouveau_flip_complete; 256 swch->flip_data = drm->channel; 257 } 258 259 if (ret) { 260 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 261 nouveau_accel_fini(drm); 262 return; 263 } 264 265 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 266 ret = nvkm_gpuobj_new(nvxx_object(&drm->device.object), NULL, 32, 267 0, 0, &drm->notify); 268 if (ret) { 269 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 270 nouveau_accel_fini(drm); 271 return; 272 } 273 274 ret = nvif_object_init(&drm->channel->user, NvNotify0, 275 NV_DMA_IN_MEMORY, 276 &(struct nv_dma_v0) { 277 .target = NV_DMA_V0_TARGET_VRAM, 278 .access = NV_DMA_V0_ACCESS_RDWR, 279 .start = drm->notify->addr, 280 .limit = drm->notify->addr + 31 281 }, sizeof(struct nv_dma_v0), 282 &drm->ntfy); 283 if (ret) { 284 nouveau_accel_fini(drm); 285 return; 286 } 287 } 288 289 290 nouveau_bo_move_init(drm); 291 } 292 293 static int nouveau_drm_probe(struct pci_dev *pdev, 294 const struct pci_device_id *pent) 295 { 296 struct nvkm_device *device; 297 struct apertures_struct *aper; 298 bool boot = false; 299 int ret; 300 301 /* remove conflicting drivers (vesafb, efifb etc) */ 302 aper = alloc_apertures(3); 303 if (!aper) 304 return -ENOMEM; 305 306 aper->ranges[0].base = pci_resource_start(pdev, 1); 307 aper->ranges[0].size = pci_resource_len(pdev, 1); 308 aper->count = 1; 309 310 if (pci_resource_len(pdev, 2)) { 311 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 312 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 313 aper->count++; 314 } 315 316 if (pci_resource_len(pdev, 3)) { 317 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 318 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 319 aper->count++; 320 } 321 322 #ifdef CONFIG_X86 323 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 324 #endif 325 if (nouveau_modeset != 2) 326 remove_conflicting_framebuffers(aper, "nouveaufb", boot); 327 kfree(aper); 328 329 ret = nvkm_device_new(pdev, NVKM_BUS_PCI, nouveau_pci_name(pdev), 330 pci_name(pdev), nouveau_config, nouveau_debug, 331 true, true, ~0ULL, &device); 332 if (ret) 333 return ret; 334 335 pci_set_master(pdev); 336 337 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 338 if (ret) { 339 nvkm_device_del(&device); 340 return ret; 341 } 342 343 return 0; 344 } 345 346 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 347 348 static void 349 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 350 { 351 struct pci_dev *pdev = drm->dev->pdev; 352 353 if (!pdev) { 354 DRM_INFO("not a PCI device; no HDMI\n"); 355 drm->hdmi_device = NULL; 356 return; 357 } 358 359 /* subfunction one is a hdmi audio device? */ 360 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 361 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 362 363 if (!drm->hdmi_device) { 364 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 365 return; 366 } 367 368 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 369 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 370 pci_dev_put(drm->hdmi_device); 371 drm->hdmi_device = NULL; 372 return; 373 } 374 } 375 376 static int 377 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 378 { 379 struct nouveau_drm *drm; 380 int ret; 381 382 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm); 383 if (ret) 384 return ret; 385 386 dev->dev_private = drm; 387 drm->dev = dev; 388 nvxx_client(&drm->client.base)->debug = 389 nvkm_dbgopt(nouveau_debug, "DRM"); 390 391 INIT_LIST_HEAD(&drm->clients); 392 spin_lock_init(&drm->tile.lock); 393 394 nouveau_get_hdmi_dev(drm); 395 396 ret = nvif_device_init(&drm->client.base.object, 397 NVDRM_DEVICE, NV_DEVICE, 398 &(struct nv_device_v0) { 399 .device = ~0, 400 }, sizeof(struct nv_device_v0), 401 &drm->device); 402 if (ret) 403 goto fail_device; 404 405 dev->irq_enabled = true; 406 407 /* workaround an odd issue on nvc1 by disabling the device's 408 * nosnoop capability. hopefully won't cause issues until a 409 * better fix is found - assuming there is one... 410 */ 411 if (drm->device.info.chipset == 0xc1) 412 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000); 413 414 nouveau_vga_init(drm); 415 nouveau_agp_init(drm); 416 417 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 418 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 419 0x1000, &drm->client.vm); 420 if (ret) 421 goto fail_device; 422 423 nvxx_client(&drm->client.base)->vm = drm->client.vm; 424 } 425 426 ret = nouveau_ttm_init(drm); 427 if (ret) 428 goto fail_ttm; 429 430 ret = nouveau_bios_init(dev); 431 if (ret) 432 goto fail_bios; 433 434 ret = nouveau_display_create(dev); 435 if (ret) 436 goto fail_dispctor; 437 438 if (dev->mode_config.num_crtc) { 439 ret = nouveau_display_init(dev); 440 if (ret) 441 goto fail_dispinit; 442 } 443 444 nouveau_sysfs_init(dev); 445 nouveau_hwmon_init(dev); 446 nouveau_accel_init(drm); 447 nouveau_fbcon_init(dev); 448 449 if (nouveau_runtime_pm != 0) { 450 pm_runtime_use_autosuspend(dev->dev); 451 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 452 pm_runtime_set_active(dev->dev); 453 pm_runtime_allow(dev->dev); 454 pm_runtime_mark_last_busy(dev->dev); 455 pm_runtime_put(dev->dev); 456 } 457 return 0; 458 459 fail_dispinit: 460 nouveau_display_destroy(dev); 461 fail_dispctor: 462 nouveau_bios_takedown(dev); 463 fail_bios: 464 nouveau_ttm_fini(drm); 465 fail_ttm: 466 nouveau_agp_fini(drm); 467 nouveau_vga_fini(drm); 468 fail_device: 469 nvif_device_fini(&drm->device); 470 nouveau_cli_destroy(&drm->client); 471 return ret; 472 } 473 474 static int 475 nouveau_drm_unload(struct drm_device *dev) 476 { 477 struct nouveau_drm *drm = nouveau_drm(dev); 478 479 pm_runtime_get_sync(dev->dev); 480 nouveau_fbcon_fini(dev); 481 nouveau_accel_fini(drm); 482 nouveau_hwmon_fini(dev); 483 nouveau_sysfs_fini(dev); 484 485 if (dev->mode_config.num_crtc) 486 nouveau_display_fini(dev); 487 nouveau_display_destroy(dev); 488 489 nouveau_bios_takedown(dev); 490 491 nouveau_ttm_fini(drm); 492 nouveau_agp_fini(drm); 493 nouveau_vga_fini(drm); 494 495 nvif_device_fini(&drm->device); 496 if (drm->hdmi_device) 497 pci_dev_put(drm->hdmi_device); 498 nouveau_cli_destroy(&drm->client); 499 return 0; 500 } 501 502 void 503 nouveau_drm_device_remove(struct drm_device *dev) 504 { 505 struct nouveau_drm *drm = nouveau_drm(dev); 506 struct nvkm_client *client; 507 struct nvkm_device *device; 508 509 dev->irq_enabled = false; 510 client = nvxx_client(&drm->client.base); 511 device = nvkm_device_find(client->device); 512 drm_put_dev(dev); 513 514 nvkm_device_del(&device); 515 } 516 517 static void 518 nouveau_drm_remove(struct pci_dev *pdev) 519 { 520 struct drm_device *dev = pci_get_drvdata(pdev); 521 522 nouveau_drm_device_remove(dev); 523 } 524 525 static int 526 nouveau_do_suspend(struct drm_device *dev, bool runtime) 527 { 528 struct nouveau_drm *drm = nouveau_drm(dev); 529 struct nouveau_cli *cli; 530 int ret; 531 532 if (dev->mode_config.num_crtc) { 533 NV_INFO(drm, "suspending console...\n"); 534 nouveau_fbcon_set_suspend(dev, 1); 535 NV_INFO(drm, "suspending display...\n"); 536 ret = nouveau_display_suspend(dev, runtime); 537 if (ret) 538 return ret; 539 } 540 541 NV_INFO(drm, "evicting buffers...\n"); 542 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 543 544 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 545 if (drm->cechan) { 546 ret = nouveau_channel_idle(drm->cechan); 547 if (ret) 548 goto fail_display; 549 } 550 551 if (drm->channel) { 552 ret = nouveau_channel_idle(drm->channel); 553 if (ret) 554 goto fail_display; 555 } 556 557 NV_INFO(drm, "suspending client object trees...\n"); 558 if (drm->fence && nouveau_fence(drm)->suspend) { 559 if (!nouveau_fence(drm)->suspend(drm)) { 560 ret = -ENOMEM; 561 goto fail_display; 562 } 563 } 564 565 list_for_each_entry(cli, &drm->clients, head) { 566 ret = nvif_client_suspend(&cli->base); 567 if (ret) 568 goto fail_client; 569 } 570 571 NV_INFO(drm, "suspending kernel object tree...\n"); 572 ret = nvif_client_suspend(&drm->client.base); 573 if (ret) 574 goto fail_client; 575 576 nouveau_agp_fini(drm); 577 return 0; 578 579 fail_client: 580 list_for_each_entry_continue_reverse(cli, &drm->clients, head) { 581 nvif_client_resume(&cli->base); 582 } 583 584 if (drm->fence && nouveau_fence(drm)->resume) 585 nouveau_fence(drm)->resume(drm); 586 587 fail_display: 588 if (dev->mode_config.num_crtc) { 589 NV_INFO(drm, "resuming display...\n"); 590 nouveau_display_resume(dev, runtime); 591 } 592 return ret; 593 } 594 595 static int 596 nouveau_do_resume(struct drm_device *dev, bool runtime) 597 { 598 struct nouveau_drm *drm = nouveau_drm(dev); 599 struct nouveau_cli *cli; 600 601 NV_INFO(drm, "re-enabling device...\n"); 602 603 nouveau_agp_reset(drm); 604 605 NV_INFO(drm, "resuming kernel object tree...\n"); 606 nvif_client_resume(&drm->client.base); 607 nouveau_agp_init(drm); 608 609 NV_INFO(drm, "resuming client object trees...\n"); 610 if (drm->fence && nouveau_fence(drm)->resume) 611 nouveau_fence(drm)->resume(drm); 612 613 list_for_each_entry(cli, &drm->clients, head) { 614 nvif_client_resume(&cli->base); 615 } 616 617 nouveau_run_vbios_init(dev); 618 619 if (dev->mode_config.num_crtc) { 620 NV_INFO(drm, "resuming display...\n"); 621 nouveau_display_resume(dev, runtime); 622 NV_INFO(drm, "resuming console...\n"); 623 nouveau_fbcon_set_suspend(dev, 0); 624 } 625 626 return 0; 627 } 628 629 int 630 nouveau_pmops_suspend(struct device *dev) 631 { 632 struct pci_dev *pdev = to_pci_dev(dev); 633 struct drm_device *drm_dev = pci_get_drvdata(pdev); 634 int ret; 635 636 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 637 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 638 return 0; 639 640 ret = nouveau_do_suspend(drm_dev, false); 641 if (ret) 642 return ret; 643 644 pci_save_state(pdev); 645 pci_disable_device(pdev); 646 pci_set_power_state(pdev, PCI_D3hot); 647 udelay(200); 648 return 0; 649 } 650 651 int 652 nouveau_pmops_resume(struct device *dev) 653 { 654 struct pci_dev *pdev = to_pci_dev(dev); 655 struct drm_device *drm_dev = pci_get_drvdata(pdev); 656 int ret; 657 658 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 659 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 660 return 0; 661 662 pci_set_power_state(pdev, PCI_D0); 663 pci_restore_state(pdev); 664 ret = pci_enable_device(pdev); 665 if (ret) 666 return ret; 667 pci_set_master(pdev); 668 669 return nouveau_do_resume(drm_dev, false); 670 } 671 672 static int 673 nouveau_pmops_freeze(struct device *dev) 674 { 675 struct pci_dev *pdev = to_pci_dev(dev); 676 struct drm_device *drm_dev = pci_get_drvdata(pdev); 677 return nouveau_do_suspend(drm_dev, false); 678 } 679 680 static int 681 nouveau_pmops_thaw(struct device *dev) 682 { 683 struct pci_dev *pdev = to_pci_dev(dev); 684 struct drm_device *drm_dev = pci_get_drvdata(pdev); 685 return nouveau_do_resume(drm_dev, false); 686 } 687 688 static int 689 nouveau_pmops_runtime_suspend(struct device *dev) 690 { 691 struct pci_dev *pdev = to_pci_dev(dev); 692 struct drm_device *drm_dev = pci_get_drvdata(pdev); 693 int ret; 694 695 if (nouveau_runtime_pm == 0) { 696 pm_runtime_forbid(dev); 697 return -EBUSY; 698 } 699 700 /* are we optimus enabled? */ 701 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 702 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 703 pm_runtime_forbid(dev); 704 return -EBUSY; 705 } 706 707 drm_kms_helper_poll_disable(drm_dev); 708 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 709 nouveau_switcheroo_optimus_dsm(); 710 ret = nouveau_do_suspend(drm_dev, true); 711 pci_save_state(pdev); 712 pci_disable_device(pdev); 713 pci_ignore_hotplug(pdev); 714 pci_set_power_state(pdev, PCI_D3cold); 715 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 716 return ret; 717 } 718 719 static int 720 nouveau_pmops_runtime_resume(struct device *dev) 721 { 722 struct pci_dev *pdev = to_pci_dev(dev); 723 struct drm_device *drm_dev = pci_get_drvdata(pdev); 724 struct nvif_device *device = &nouveau_drm(drm_dev)->device; 725 int ret; 726 727 if (nouveau_runtime_pm == 0) 728 return -EINVAL; 729 730 pci_set_power_state(pdev, PCI_D0); 731 pci_restore_state(pdev); 732 ret = pci_enable_device(pdev); 733 if (ret) 734 return ret; 735 pci_set_master(pdev); 736 737 ret = nouveau_do_resume(drm_dev, true); 738 drm_kms_helper_poll_enable(drm_dev); 739 /* do magic */ 740 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 741 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 742 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 743 return ret; 744 } 745 746 static int 747 nouveau_pmops_runtime_idle(struct device *dev) 748 { 749 struct pci_dev *pdev = to_pci_dev(dev); 750 struct drm_device *drm_dev = pci_get_drvdata(pdev); 751 struct nouveau_drm *drm = nouveau_drm(drm_dev); 752 struct drm_crtc *crtc; 753 754 if (nouveau_runtime_pm == 0) { 755 pm_runtime_forbid(dev); 756 return -EBUSY; 757 } 758 759 /* are we optimus enabled? */ 760 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 761 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 762 pm_runtime_forbid(dev); 763 return -EBUSY; 764 } 765 766 /* if we have a hdmi audio device - make sure it has a driver loaded */ 767 if (drm->hdmi_device) { 768 if (!drm->hdmi_device->driver) { 769 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 770 pm_runtime_mark_last_busy(dev); 771 return -EBUSY; 772 } 773 } 774 775 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 776 if (crtc->enabled) { 777 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 778 return -EBUSY; 779 } 780 } 781 pm_runtime_mark_last_busy(dev); 782 pm_runtime_autosuspend(dev); 783 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 784 return 1; 785 } 786 787 static int 788 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 789 { 790 struct nouveau_drm *drm = nouveau_drm(dev); 791 struct nouveau_cli *cli; 792 char name[32], tmpname[TASK_COMM_LEN]; 793 int ret; 794 795 /* need to bring up power immediately if opening device */ 796 ret = pm_runtime_get_sync(dev->dev); 797 if (ret < 0 && ret != -EACCES) 798 return ret; 799 800 get_task_comm(tmpname, current); 801 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 802 803 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli); 804 805 if (ret) 806 goto out_suspend; 807 808 cli->base.super = false; 809 810 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 811 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 812 0x1000, &cli->vm); 813 if (ret) { 814 nouveau_cli_destroy(cli); 815 goto out_suspend; 816 } 817 818 nvxx_client(&cli->base)->vm = cli->vm; 819 } 820 821 fpriv->driver_priv = cli; 822 823 mutex_lock(&drm->client.mutex); 824 list_add(&cli->head, &drm->clients); 825 mutex_unlock(&drm->client.mutex); 826 827 out_suspend: 828 pm_runtime_mark_last_busy(dev->dev); 829 pm_runtime_put_autosuspend(dev->dev); 830 831 return ret; 832 } 833 834 static void 835 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) 836 { 837 struct nouveau_cli *cli = nouveau_cli(fpriv); 838 struct nouveau_drm *drm = nouveau_drm(dev); 839 840 pm_runtime_get_sync(dev->dev); 841 842 mutex_lock(&cli->mutex); 843 if (cli->abi16) 844 nouveau_abi16_fini(cli->abi16); 845 mutex_unlock(&cli->mutex); 846 847 mutex_lock(&drm->client.mutex); 848 list_del(&cli->head); 849 mutex_unlock(&drm->client.mutex); 850 851 } 852 853 static void 854 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 855 { 856 struct nouveau_cli *cli = nouveau_cli(fpriv); 857 nouveau_cli_destroy(cli); 858 pm_runtime_mark_last_busy(dev->dev); 859 pm_runtime_put_autosuspend(dev->dev); 860 } 861 862 static const struct drm_ioctl_desc 863 nouveau_ioctls[] = { 864 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 865 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 866 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 867 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 868 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 869 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 870 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 871 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 872 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 873 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 874 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 875 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW), 876 }; 877 878 long 879 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 880 { 881 struct drm_file *filp = file->private_data; 882 struct drm_device *dev = filp->minor->dev; 883 long ret; 884 885 ret = pm_runtime_get_sync(dev->dev); 886 if (ret < 0 && ret != -EACCES) 887 return ret; 888 889 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 890 case DRM_NOUVEAU_NVIF: 891 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 892 break; 893 default: 894 ret = drm_ioctl(file, cmd, arg); 895 break; 896 } 897 898 pm_runtime_mark_last_busy(dev->dev); 899 pm_runtime_put_autosuspend(dev->dev); 900 return ret; 901 } 902 903 static const struct file_operations 904 nouveau_driver_fops = { 905 .owner = THIS_MODULE, 906 .open = drm_open, 907 .release = drm_release, 908 .unlocked_ioctl = nouveau_drm_ioctl, 909 .mmap = nouveau_ttm_mmap, 910 .poll = drm_poll, 911 .read = drm_read, 912 #if defined(CONFIG_COMPAT) 913 .compat_ioctl = nouveau_compat_ioctl, 914 #endif 915 .llseek = noop_llseek, 916 }; 917 918 static struct drm_driver 919 driver_stub = { 920 .driver_features = 921 DRIVER_USE_AGP | 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_new(pdev, NVKM_BUS_PLATFORM, 1040 nouveau_platform_name(pdev), 1041 dev_name(&pdev->dev), nouveau_config, 1042 nouveau_debug, true, true, ~0ULL, 1043 pdevice); 1044 if (err) 1045 goto err_free; 1046 1047 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1048 if (!drm) { 1049 err = -ENOMEM; 1050 goto err_free; 1051 } 1052 1053 err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev)); 1054 if (err < 0) 1055 goto err_free; 1056 1057 drm->platformdev = pdev; 1058 platform_set_drvdata(pdev, drm); 1059 1060 return drm; 1061 1062 err_free: 1063 nvkm_device_del(pdevice); 1064 1065 return ERR_PTR(err); 1066 } 1067 1068 static int __init 1069 nouveau_drm_init(void) 1070 { 1071 driver_pci = driver_stub; 1072 driver_pci.set_busid = drm_pci_set_busid; 1073 driver_platform = driver_stub; 1074 driver_platform.set_busid = drm_platform_set_busid; 1075 1076 nouveau_display_options(); 1077 1078 if (nouveau_modeset == -1) { 1079 #ifdef CONFIG_VGA_CONSOLE 1080 if (vgacon_text_force()) 1081 nouveau_modeset = 0; 1082 #endif 1083 } 1084 1085 if (!nouveau_modeset) 1086 return 0; 1087 1088 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1089 platform_driver_register(&nouveau_platform_driver); 1090 #endif 1091 1092 nouveau_register_dsm_handler(); 1093 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1094 } 1095 1096 static void __exit 1097 nouveau_drm_exit(void) 1098 { 1099 if (!nouveau_modeset) 1100 return; 1101 1102 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1103 nouveau_unregister_dsm_handler(); 1104 1105 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1106 platform_driver_unregister(&nouveau_platform_driver); 1107 #endif 1108 } 1109 1110 module_init(nouveau_drm_init); 1111 module_exit(nouveau_drm_exit); 1112 1113 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1114 MODULE_AUTHOR(DRIVER_AUTHOR); 1115 MODULE_DESCRIPTION(DRIVER_DESC); 1116 MODULE_LICENSE("GPL and additional rights"); 1117