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_drv.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 KEPLER_CHANNEL_GPFIFO_B: 200 case MAXWELL_CHANNEL_GPFIFO_A: 201 case PASCAL_CHANNEL_GPFIFO_A: 202 ret = nvc0_fence_create(drm); 203 break; 204 default: 205 break; 206 } 207 } 208 209 nvif_object_sclass_put(&sclass); 210 if (ret) { 211 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 212 nouveau_accel_fini(drm); 213 return; 214 } 215 216 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 217 ret = nouveau_channel_new(drm, &drm->device, 218 NVA06F_V0_ENGINE_CE0 | 219 NVA06F_V0_ENGINE_CE1, 220 0, &drm->cechan); 221 if (ret) 222 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 223 224 arg0 = NVA06F_V0_ENGINE_GR; 225 arg1 = 1; 226 } else 227 if (device->info.chipset >= 0xa3 && 228 device->info.chipset != 0xaa && 229 device->info.chipset != 0xac) { 230 ret = nouveau_channel_new(drm, &drm->device, 231 NvDmaFB, NvDmaTT, &drm->cechan); 232 if (ret) 233 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 234 235 arg0 = NvDmaFB; 236 arg1 = NvDmaTT; 237 } else { 238 arg0 = NvDmaFB; 239 arg1 = NvDmaTT; 240 } 241 242 ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel); 243 if (ret) { 244 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 245 nouveau_accel_fini(drm); 246 return; 247 } 248 249 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 250 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 251 if (ret == 0) { 252 ret = RING_SPACE(drm->channel, 2); 253 if (ret == 0) { 254 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 255 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 256 OUT_RING (drm->channel, NVDRM_NVSW); 257 } else 258 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 259 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 260 OUT_RING (drm->channel, 0x001f0000); 261 } 262 } 263 264 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete, 265 false, NV04_NVSW_NTFY_UEVENT, 266 NULL, 0, 0, &drm->flip); 267 if (ret == 0) 268 ret = nvif_notify_get(&drm->flip); 269 if (ret) { 270 nouveau_accel_fini(drm); 271 return; 272 } 273 } 274 275 if (ret) { 276 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 277 nouveau_accel_fini(drm); 278 return; 279 } 280 281 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 282 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false, 283 NULL, &drm->notify); 284 if (ret) { 285 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 286 nouveau_accel_fini(drm); 287 return; 288 } 289 290 ret = nvif_object_init(&drm->channel->user, NvNotify0, 291 NV_DMA_IN_MEMORY, 292 &(struct nv_dma_v0) { 293 .target = NV_DMA_V0_TARGET_VRAM, 294 .access = NV_DMA_V0_ACCESS_RDWR, 295 .start = drm->notify->addr, 296 .limit = drm->notify->addr + 31 297 }, sizeof(struct nv_dma_v0), 298 &drm->ntfy); 299 if (ret) { 300 nouveau_accel_fini(drm); 301 return; 302 } 303 } 304 305 306 nouveau_bo_move_init(drm); 307 } 308 309 static int nouveau_drm_probe(struct pci_dev *pdev, 310 const struct pci_device_id *pent) 311 { 312 struct nvkm_device *device; 313 struct apertures_struct *aper; 314 bool boot = false; 315 int ret; 316 317 if (vga_switcheroo_client_probe_defer(pdev)) 318 return -EPROBE_DEFER; 319 320 /* We need to check that the chipset is supported before booting 321 * fbdev off the hardware, as there's no way to put it back. 322 */ 323 ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device); 324 if (ret) 325 return ret; 326 327 nvkm_device_del(&device); 328 329 /* Remove conflicting drivers (vesafb, efifb etc). */ 330 aper = alloc_apertures(3); 331 if (!aper) 332 return -ENOMEM; 333 334 aper->ranges[0].base = pci_resource_start(pdev, 1); 335 aper->ranges[0].size = pci_resource_len(pdev, 1); 336 aper->count = 1; 337 338 if (pci_resource_len(pdev, 2)) { 339 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 340 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 341 aper->count++; 342 } 343 344 if (pci_resource_len(pdev, 3)) { 345 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 346 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 347 aper->count++; 348 } 349 350 #ifdef CONFIG_X86 351 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 352 #endif 353 if (nouveau_modeset != 2) 354 remove_conflicting_framebuffers(aper, "nouveaufb", boot); 355 kfree(aper); 356 357 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 358 true, true, ~0ULL, &device); 359 if (ret) 360 return ret; 361 362 pci_set_master(pdev); 363 364 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 365 if (ret) { 366 nvkm_device_del(&device); 367 return ret; 368 } 369 370 return 0; 371 } 372 373 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 374 375 static void 376 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 377 { 378 struct pci_dev *pdev = drm->dev->pdev; 379 380 if (!pdev) { 381 NV_DEBUG(drm, "not a PCI device; no HDMI\n"); 382 drm->hdmi_device = NULL; 383 return; 384 } 385 386 /* subfunction one is a hdmi audio device? */ 387 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 388 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 389 390 if (!drm->hdmi_device) { 391 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 392 return; 393 } 394 395 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 396 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 397 pci_dev_put(drm->hdmi_device); 398 drm->hdmi_device = NULL; 399 return; 400 } 401 } 402 403 static int 404 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 405 { 406 struct nouveau_drm *drm; 407 int ret; 408 409 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm); 410 if (ret) 411 return ret; 412 413 dev->dev_private = drm; 414 drm->dev = dev; 415 nvxx_client(&drm->client.base)->debug = 416 nvkm_dbgopt(nouveau_debug, "DRM"); 417 418 INIT_LIST_HEAD(&drm->clients); 419 spin_lock_init(&drm->tile.lock); 420 421 nouveau_get_hdmi_dev(drm); 422 423 ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE, 424 &(struct nv_device_v0) { 425 .device = ~0, 426 }, sizeof(struct nv_device_v0), 427 &drm->device); 428 if (ret) 429 goto fail_device; 430 431 dev->irq_enabled = true; 432 433 /* workaround an odd issue on nvc1 by disabling the device's 434 * nosnoop capability. hopefully won't cause issues until a 435 * better fix is found - assuming there is one... 436 */ 437 if (drm->device.info.chipset == 0xc1) 438 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000); 439 440 nouveau_vga_init(drm); 441 442 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 443 if (!nvxx_device(&drm->device)->mmu) { 444 ret = -ENOSYS; 445 goto fail_device; 446 } 447 448 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 449 0x1000, NULL, &drm->client.vm); 450 if (ret) 451 goto fail_device; 452 453 nvxx_client(&drm->client.base)->vm = drm->client.vm; 454 } 455 456 ret = nouveau_ttm_init(drm); 457 if (ret) 458 goto fail_ttm; 459 460 ret = nouveau_bios_init(dev); 461 if (ret) 462 goto fail_bios; 463 464 ret = nouveau_display_create(dev); 465 if (ret) 466 goto fail_dispctor; 467 468 if (dev->mode_config.num_crtc) { 469 ret = nouveau_display_init(dev); 470 if (ret) 471 goto fail_dispinit; 472 } 473 474 nouveau_debugfs_init(drm); 475 nouveau_hwmon_init(dev); 476 nouveau_accel_init(drm); 477 nouveau_fbcon_init(dev); 478 479 if (nouveau_runtime_pm != 0) { 480 pm_runtime_use_autosuspend(dev->dev); 481 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 482 pm_runtime_set_active(dev->dev); 483 pm_runtime_allow(dev->dev); 484 pm_runtime_mark_last_busy(dev->dev); 485 pm_runtime_put(dev->dev); 486 } 487 return 0; 488 489 fail_dispinit: 490 nouveau_display_destroy(dev); 491 fail_dispctor: 492 nouveau_bios_takedown(dev); 493 fail_bios: 494 nouveau_ttm_fini(drm); 495 fail_ttm: 496 nouveau_vga_fini(drm); 497 fail_device: 498 nvif_device_fini(&drm->device); 499 nouveau_cli_destroy(&drm->client); 500 return ret; 501 } 502 503 static int 504 nouveau_drm_unload(struct drm_device *dev) 505 { 506 struct nouveau_drm *drm = nouveau_drm(dev); 507 508 if (nouveau_runtime_pm != 0) { 509 pm_runtime_get_sync(dev->dev); 510 pm_runtime_forbid(dev->dev); 511 } 512 513 nouveau_fbcon_fini(dev); 514 nouveau_accel_fini(drm); 515 nouveau_hwmon_fini(dev); 516 nouveau_debugfs_fini(drm); 517 518 if (dev->mode_config.num_crtc) 519 nouveau_display_fini(dev); 520 nouveau_display_destroy(dev); 521 522 nouveau_bios_takedown(dev); 523 524 nouveau_ttm_fini(drm); 525 nouveau_vga_fini(drm); 526 527 nvif_device_fini(&drm->device); 528 if (drm->hdmi_device) 529 pci_dev_put(drm->hdmi_device); 530 nouveau_cli_destroy(&drm->client); 531 return 0; 532 } 533 534 void 535 nouveau_drm_device_remove(struct drm_device *dev) 536 { 537 struct nouveau_drm *drm = nouveau_drm(dev); 538 struct nvkm_client *client; 539 struct nvkm_device *device; 540 541 dev->irq_enabled = false; 542 client = nvxx_client(&drm->client.base); 543 device = nvkm_device_find(client->device); 544 drm_put_dev(dev); 545 546 nvkm_device_del(&device); 547 } 548 549 static void 550 nouveau_drm_remove(struct pci_dev *pdev) 551 { 552 struct drm_device *dev = pci_get_drvdata(pdev); 553 554 nouveau_drm_device_remove(dev); 555 } 556 557 static int 558 nouveau_do_suspend(struct drm_device *dev, bool runtime) 559 { 560 struct nouveau_drm *drm = nouveau_drm(dev); 561 struct nouveau_cli *cli; 562 int ret; 563 564 if (dev->mode_config.num_crtc) { 565 NV_INFO(drm, "suspending console...\n"); 566 nouveau_fbcon_set_suspend(dev, 1); 567 NV_INFO(drm, "suspending display...\n"); 568 ret = nouveau_display_suspend(dev, runtime); 569 if (ret) 570 return ret; 571 } 572 573 NV_INFO(drm, "evicting buffers...\n"); 574 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 575 576 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 577 if (drm->cechan) { 578 ret = nouveau_channel_idle(drm->cechan); 579 if (ret) 580 goto fail_display; 581 } 582 583 if (drm->channel) { 584 ret = nouveau_channel_idle(drm->channel); 585 if (ret) 586 goto fail_display; 587 } 588 589 NV_INFO(drm, "suspending client object trees...\n"); 590 if (drm->fence && nouveau_fence(drm)->suspend) { 591 if (!nouveau_fence(drm)->suspend(drm)) { 592 ret = -ENOMEM; 593 goto fail_display; 594 } 595 } 596 597 list_for_each_entry(cli, &drm->clients, head) { 598 ret = nvif_client_suspend(&cli->base); 599 if (ret) 600 goto fail_client; 601 } 602 603 NV_INFO(drm, "suspending kernel object tree...\n"); 604 ret = nvif_client_suspend(&drm->client.base); 605 if (ret) 606 goto fail_client; 607 608 return 0; 609 610 fail_client: 611 list_for_each_entry_continue_reverse(cli, &drm->clients, head) { 612 nvif_client_resume(&cli->base); 613 } 614 615 if (drm->fence && nouveau_fence(drm)->resume) 616 nouveau_fence(drm)->resume(drm); 617 618 fail_display: 619 if (dev->mode_config.num_crtc) { 620 NV_INFO(drm, "resuming display...\n"); 621 nouveau_display_resume(dev, runtime); 622 } 623 return ret; 624 } 625 626 static int 627 nouveau_do_resume(struct drm_device *dev, bool runtime) 628 { 629 struct nouveau_drm *drm = nouveau_drm(dev); 630 struct nouveau_cli *cli; 631 632 NV_INFO(drm, "resuming kernel object tree...\n"); 633 nvif_client_resume(&drm->client.base); 634 635 NV_INFO(drm, "resuming client object trees...\n"); 636 if (drm->fence && nouveau_fence(drm)->resume) 637 nouveau_fence(drm)->resume(drm); 638 639 list_for_each_entry(cli, &drm->clients, head) { 640 nvif_client_resume(&cli->base); 641 } 642 643 nouveau_run_vbios_init(dev); 644 645 if (dev->mode_config.num_crtc) { 646 NV_INFO(drm, "resuming display...\n"); 647 nouveau_display_resume(dev, runtime); 648 NV_INFO(drm, "resuming console...\n"); 649 nouveau_fbcon_set_suspend(dev, 0); 650 } 651 652 return 0; 653 } 654 655 int 656 nouveau_pmops_suspend(struct device *dev) 657 { 658 struct pci_dev *pdev = to_pci_dev(dev); 659 struct drm_device *drm_dev = pci_get_drvdata(pdev); 660 int ret; 661 662 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 663 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 664 return 0; 665 666 ret = nouveau_do_suspend(drm_dev, false); 667 if (ret) 668 return ret; 669 670 pci_save_state(pdev); 671 pci_disable_device(pdev); 672 pci_set_power_state(pdev, PCI_D3hot); 673 udelay(200); 674 return 0; 675 } 676 677 int 678 nouveau_pmops_resume(struct device *dev) 679 { 680 struct pci_dev *pdev = to_pci_dev(dev); 681 struct drm_device *drm_dev = pci_get_drvdata(pdev); 682 int ret; 683 684 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 685 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 686 return 0; 687 688 pci_set_power_state(pdev, PCI_D0); 689 pci_restore_state(pdev); 690 ret = pci_enable_device(pdev); 691 if (ret) 692 return ret; 693 pci_set_master(pdev); 694 695 return nouveau_do_resume(drm_dev, false); 696 } 697 698 static int 699 nouveau_pmops_freeze(struct device *dev) 700 { 701 struct pci_dev *pdev = to_pci_dev(dev); 702 struct drm_device *drm_dev = pci_get_drvdata(pdev); 703 return nouveau_do_suspend(drm_dev, false); 704 } 705 706 static int 707 nouveau_pmops_thaw(struct device *dev) 708 { 709 struct pci_dev *pdev = to_pci_dev(dev); 710 struct drm_device *drm_dev = pci_get_drvdata(pdev); 711 return nouveau_do_resume(drm_dev, false); 712 } 713 714 static int 715 nouveau_pmops_runtime_suspend(struct device *dev) 716 { 717 struct pci_dev *pdev = to_pci_dev(dev); 718 struct drm_device *drm_dev = pci_get_drvdata(pdev); 719 int ret; 720 721 if (nouveau_runtime_pm == 0) { 722 pm_runtime_forbid(dev); 723 return -EBUSY; 724 } 725 726 /* are we optimus enabled? */ 727 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 728 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 729 pm_runtime_forbid(dev); 730 return -EBUSY; 731 } 732 733 drm_kms_helper_poll_disable(drm_dev); 734 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 735 nouveau_switcheroo_optimus_dsm(); 736 ret = nouveau_do_suspend(drm_dev, true); 737 pci_save_state(pdev); 738 pci_disable_device(pdev); 739 pci_ignore_hotplug(pdev); 740 pci_set_power_state(pdev, PCI_D3cold); 741 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 742 return ret; 743 } 744 745 static int 746 nouveau_pmops_runtime_resume(struct device *dev) 747 { 748 struct pci_dev *pdev = to_pci_dev(dev); 749 struct drm_device *drm_dev = pci_get_drvdata(pdev); 750 struct nvif_device *device = &nouveau_drm(drm_dev)->device; 751 int ret; 752 753 if (nouveau_runtime_pm == 0) 754 return -EINVAL; 755 756 pci_set_power_state(pdev, PCI_D0); 757 pci_restore_state(pdev); 758 ret = pci_enable_device(pdev); 759 if (ret) 760 return ret; 761 pci_set_master(pdev); 762 763 ret = nouveau_do_resume(drm_dev, true); 764 drm_kms_helper_poll_enable(drm_dev); 765 /* do magic */ 766 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 767 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 768 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 769 return ret; 770 } 771 772 static int 773 nouveau_pmops_runtime_idle(struct device *dev) 774 { 775 struct pci_dev *pdev = to_pci_dev(dev); 776 struct drm_device *drm_dev = pci_get_drvdata(pdev); 777 struct nouveau_drm *drm = nouveau_drm(drm_dev); 778 struct drm_crtc *crtc; 779 780 if (nouveau_runtime_pm == 0) { 781 pm_runtime_forbid(dev); 782 return -EBUSY; 783 } 784 785 /* are we optimus enabled? */ 786 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 787 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 788 pm_runtime_forbid(dev); 789 return -EBUSY; 790 } 791 792 /* if we have a hdmi audio device - make sure it has a driver loaded */ 793 if (drm->hdmi_device) { 794 if (!drm->hdmi_device->driver) { 795 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 796 pm_runtime_mark_last_busy(dev); 797 return -EBUSY; 798 } 799 } 800 801 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 802 if (crtc->enabled) { 803 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 804 return -EBUSY; 805 } 806 } 807 pm_runtime_mark_last_busy(dev); 808 pm_runtime_autosuspend(dev); 809 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 810 return 1; 811 } 812 813 static int 814 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 815 { 816 struct nouveau_drm *drm = nouveau_drm(dev); 817 struct nouveau_cli *cli; 818 char name[32], tmpname[TASK_COMM_LEN]; 819 int ret; 820 821 /* need to bring up power immediately if opening device */ 822 ret = pm_runtime_get_sync(dev->dev); 823 if (ret < 0 && ret != -EACCES) 824 return ret; 825 826 get_task_comm(tmpname, current); 827 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 828 829 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli); 830 831 if (ret) 832 goto out_suspend; 833 834 cli->base.super = false; 835 836 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 837 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 838 0x1000, NULL, &cli->vm); 839 if (ret) { 840 nouveau_cli_destroy(cli); 841 goto out_suspend; 842 } 843 844 nvxx_client(&cli->base)->vm = cli->vm; 845 } 846 847 fpriv->driver_priv = cli; 848 849 mutex_lock(&drm->client.mutex); 850 list_add(&cli->head, &drm->clients); 851 mutex_unlock(&drm->client.mutex); 852 853 out_suspend: 854 pm_runtime_mark_last_busy(dev->dev); 855 pm_runtime_put_autosuspend(dev->dev); 856 857 return ret; 858 } 859 860 static void 861 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) 862 { 863 struct nouveau_cli *cli = nouveau_cli(fpriv); 864 struct nouveau_drm *drm = nouveau_drm(dev); 865 866 pm_runtime_get_sync(dev->dev); 867 868 mutex_lock(&cli->mutex); 869 if (cli->abi16) 870 nouveau_abi16_fini(cli->abi16); 871 mutex_unlock(&cli->mutex); 872 873 mutex_lock(&drm->client.mutex); 874 list_del(&cli->head); 875 mutex_unlock(&drm->client.mutex); 876 877 } 878 879 static void 880 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 881 { 882 struct nouveau_cli *cli = nouveau_cli(fpriv); 883 nouveau_cli_destroy(cli); 884 pm_runtime_mark_last_busy(dev->dev); 885 pm_runtime_put_autosuspend(dev->dev); 886 } 887 888 static const struct drm_ioctl_desc 889 nouveau_ioctls[] = { 890 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 891 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 892 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 893 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 894 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 895 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 896 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 897 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 898 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 899 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 900 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 901 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 902 }; 903 904 long 905 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 906 { 907 struct drm_file *filp = file->private_data; 908 struct drm_device *dev = filp->minor->dev; 909 long ret; 910 911 ret = pm_runtime_get_sync(dev->dev); 912 if (ret < 0 && ret != -EACCES) 913 return ret; 914 915 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 916 case DRM_NOUVEAU_NVIF: 917 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 918 break; 919 default: 920 ret = drm_ioctl(file, cmd, arg); 921 break; 922 } 923 924 pm_runtime_mark_last_busy(dev->dev); 925 pm_runtime_put_autosuspend(dev->dev); 926 return ret; 927 } 928 929 static const struct file_operations 930 nouveau_driver_fops = { 931 .owner = THIS_MODULE, 932 .open = drm_open, 933 .release = drm_release, 934 .unlocked_ioctl = nouveau_drm_ioctl, 935 .mmap = nouveau_ttm_mmap, 936 .poll = drm_poll, 937 .read = drm_read, 938 #if defined(CONFIG_COMPAT) 939 .compat_ioctl = nouveau_compat_ioctl, 940 #endif 941 .llseek = noop_llseek, 942 }; 943 944 static struct drm_driver 945 driver_stub = { 946 .driver_features = 947 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 948 DRIVER_KMS_LEGACY_CONTEXT, 949 950 .load = nouveau_drm_load, 951 .unload = nouveau_drm_unload, 952 .open = nouveau_drm_open, 953 .preclose = nouveau_drm_preclose, 954 .postclose = nouveau_drm_postclose, 955 .lastclose = nouveau_vga_lastclose, 956 957 #if defined(CONFIG_DEBUG_FS) 958 .debugfs_init = nouveau_drm_debugfs_init, 959 .debugfs_cleanup = nouveau_drm_debugfs_cleanup, 960 #endif 961 962 .get_vblank_counter = drm_vblank_no_hw_counter, 963 .enable_vblank = nouveau_display_vblank_enable, 964 .disable_vblank = nouveau_display_vblank_disable, 965 .get_scanout_position = nouveau_display_scanoutpos, 966 .get_vblank_timestamp = nouveau_display_vblstamp, 967 968 .ioctls = nouveau_ioctls, 969 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 970 .fops = &nouveau_driver_fops, 971 972 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 973 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 974 .gem_prime_export = drm_gem_prime_export, 975 .gem_prime_import = drm_gem_prime_import, 976 .gem_prime_pin = nouveau_gem_prime_pin, 977 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 978 .gem_prime_unpin = nouveau_gem_prime_unpin, 979 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 980 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 981 .gem_prime_vmap = nouveau_gem_prime_vmap, 982 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 983 984 .gem_free_object_unlocked = nouveau_gem_object_del, 985 .gem_open_object = nouveau_gem_object_open, 986 .gem_close_object = nouveau_gem_object_close, 987 988 .dumb_create = nouveau_display_dumb_create, 989 .dumb_map_offset = nouveau_display_dumb_map_offset, 990 .dumb_destroy = drm_gem_dumb_destroy, 991 992 .name = DRIVER_NAME, 993 .desc = DRIVER_DESC, 994 #ifdef GIT_REVISION 995 .date = GIT_REVISION, 996 #else 997 .date = DRIVER_DATE, 998 #endif 999 .major = DRIVER_MAJOR, 1000 .minor = DRIVER_MINOR, 1001 .patchlevel = DRIVER_PATCHLEVEL, 1002 }; 1003 1004 static struct pci_device_id 1005 nouveau_drm_pci_table[] = { 1006 { 1007 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1008 .class = PCI_BASE_CLASS_DISPLAY << 16, 1009 .class_mask = 0xff << 16, 1010 }, 1011 { 1012 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1013 .class = PCI_BASE_CLASS_DISPLAY << 16, 1014 .class_mask = 0xff << 16, 1015 }, 1016 {} 1017 }; 1018 1019 static void nouveau_display_options(void) 1020 { 1021 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1022 1023 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1024 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1025 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1026 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1027 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1028 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1029 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1030 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1031 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1032 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1033 } 1034 1035 static const struct dev_pm_ops nouveau_pm_ops = { 1036 .suspend = nouveau_pmops_suspend, 1037 .resume = nouveau_pmops_resume, 1038 .freeze = nouveau_pmops_freeze, 1039 .thaw = nouveau_pmops_thaw, 1040 .poweroff = nouveau_pmops_freeze, 1041 .restore = nouveau_pmops_resume, 1042 .runtime_suspend = nouveau_pmops_runtime_suspend, 1043 .runtime_resume = nouveau_pmops_runtime_resume, 1044 .runtime_idle = nouveau_pmops_runtime_idle, 1045 }; 1046 1047 static struct pci_driver 1048 nouveau_drm_pci_driver = { 1049 .name = "nouveau", 1050 .id_table = nouveau_drm_pci_table, 1051 .probe = nouveau_drm_probe, 1052 .remove = nouveau_drm_remove, 1053 .driver.pm = &nouveau_pm_ops, 1054 }; 1055 1056 struct drm_device * 1057 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1058 struct platform_device *pdev, 1059 struct nvkm_device **pdevice) 1060 { 1061 struct drm_device *drm; 1062 int err; 1063 1064 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1065 true, true, ~0ULL, pdevice); 1066 if (err) 1067 goto err_free; 1068 1069 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1070 if (!drm) { 1071 err = -ENOMEM; 1072 goto err_free; 1073 } 1074 1075 drm->platformdev = pdev; 1076 platform_set_drvdata(pdev, drm); 1077 1078 return drm; 1079 1080 err_free: 1081 nvkm_device_del(pdevice); 1082 1083 return ERR_PTR(err); 1084 } 1085 1086 static int __init 1087 nouveau_drm_init(void) 1088 { 1089 driver_pci = driver_stub; 1090 driver_pci.set_busid = drm_pci_set_busid; 1091 driver_platform = driver_stub; 1092 1093 nouveau_display_options(); 1094 1095 if (nouveau_modeset == -1) { 1096 if (vgacon_text_force()) 1097 nouveau_modeset = 0; 1098 } 1099 1100 if (!nouveau_modeset) 1101 return 0; 1102 1103 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1104 platform_driver_register(&nouveau_platform_driver); 1105 #endif 1106 1107 nouveau_register_dsm_handler(); 1108 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1109 } 1110 1111 static void __exit 1112 nouveau_drm_exit(void) 1113 { 1114 if (!nouveau_modeset) 1115 return; 1116 1117 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1118 nouveau_unregister_dsm_handler(); 1119 1120 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1121 platform_driver_unregister(&nouveau_platform_driver); 1122 #endif 1123 } 1124 1125 module_init(nouveau_drm_init); 1126 module_exit(nouveau_drm_exit); 1127 1128 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1129 MODULE_AUTHOR(DRIVER_AUTHOR); 1130 MODULE_DESCRIPTION(DRIVER_DESC); 1131 MODULE_LICENSE("GPL and additional rights"); 1132