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 <drm/drmP.h> 33 #include <drm/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/driver.h> 41 42 #include <nvif/class.h> 43 #include <nvif/cl0002.h> 44 #include <nvif/cla06f.h> 45 #include <nvif/if0004.h> 46 47 #include "nouveau_drv.h" 48 #include "nouveau_dma.h" 49 #include "nouveau_ttm.h" 50 #include "nouveau_gem.h" 51 #include "nouveau_vga.h" 52 #include "nouveau_led.h" 53 #include "nouveau_hwmon.h" 54 #include "nouveau_acpi.h" 55 #include "nouveau_bios.h" 56 #include "nouveau_ioctl.h" 57 #include "nouveau_abi16.h" 58 #include "nouveau_fbcon.h" 59 #include "nouveau_fence.h" 60 #include "nouveau_debugfs.h" 61 #include "nouveau_usif.h" 62 #include "nouveau_connector.h" 63 #include "nouveau_platform.h" 64 65 MODULE_PARM_DESC(config, "option string to pass to driver core"); 66 static char *nouveau_config; 67 module_param_named(config, nouveau_config, charp, 0400); 68 69 MODULE_PARM_DESC(debug, "debug string to pass to driver core"); 70 static char *nouveau_debug; 71 module_param_named(debug, nouveau_debug, charp, 0400); 72 73 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); 74 static int nouveau_noaccel = 0; 75 module_param_named(noaccel, nouveau_noaccel, int, 0400); 76 77 MODULE_PARM_DESC(modeset, "enable driver (default: auto, " 78 "0 = disabled, 1 = enabled, 2 = headless)"); 79 int nouveau_modeset = -1; 80 module_param_named(modeset, nouveau_modeset, int, 0400); 81 82 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); 83 static int nouveau_runtime_pm = -1; 84 module_param_named(runpm, nouveau_runtime_pm, int, 0400); 85 86 static struct drm_driver driver_stub; 87 static struct drm_driver driver_pci; 88 static struct drm_driver driver_platform; 89 90 static u64 91 nouveau_pci_name(struct pci_dev *pdev) 92 { 93 u64 name = (u64)pci_domain_nr(pdev->bus) << 32; 94 name |= pdev->bus->number << 16; 95 name |= PCI_SLOT(pdev->devfn) << 8; 96 return name | PCI_FUNC(pdev->devfn); 97 } 98 99 static u64 100 nouveau_platform_name(struct platform_device *platformdev) 101 { 102 return platformdev->id; 103 } 104 105 static u64 106 nouveau_name(struct drm_device *dev) 107 { 108 if (dev->pdev) 109 return nouveau_pci_name(dev->pdev); 110 else 111 return nouveau_platform_name(to_platform_device(dev->dev)); 112 } 113 114 static void 115 nouveau_cli_fini(struct nouveau_cli *cli) 116 { 117 nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL); 118 usif_client_fini(cli); 119 nvif_device_fini(&cli->device); 120 nvif_client_fini(&cli->base); 121 } 122 123 static int 124 nouveau_cli_init(struct nouveau_drm *drm, const char *sname, 125 struct nouveau_cli *cli) 126 { 127 u64 device = nouveau_name(drm->dev); 128 int ret; 129 130 snprintf(cli->name, sizeof(cli->name), "%s", sname); 131 cli->dev = drm->dev; 132 mutex_init(&cli->mutex); 133 usif_client_init(cli); 134 135 if (cli == &drm->client) { 136 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug, 137 cli->name, device, &cli->base); 138 } else { 139 ret = nvif_client_init(&drm->client.base, cli->name, device, 140 &cli->base); 141 } 142 if (ret) { 143 NV_ERROR(drm, "Client allocation failed: %d\n", ret); 144 goto done; 145 } 146 147 ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE, 148 &(struct nv_device_v0) { 149 .device = ~0, 150 }, sizeof(struct nv_device_v0), 151 &cli->device); 152 if (ret) { 153 NV_ERROR(drm, "Device allocation failed: %d\n", ret); 154 goto done; 155 } 156 157 done: 158 if (ret) 159 nouveau_cli_fini(cli); 160 return ret; 161 } 162 163 static void 164 nouveau_accel_fini(struct nouveau_drm *drm) 165 { 166 nouveau_channel_idle(drm->channel); 167 nvif_object_fini(&drm->ntfy); 168 nvkm_gpuobj_del(&drm->notify); 169 nvif_notify_fini(&drm->flip); 170 nvif_object_fini(&drm->nvsw); 171 nouveau_channel_del(&drm->channel); 172 173 nouveau_channel_idle(drm->cechan); 174 nvif_object_fini(&drm->ttm.copy); 175 nouveau_channel_del(&drm->cechan); 176 177 if (drm->fence) 178 nouveau_fence(drm)->dtor(drm); 179 } 180 181 static void 182 nouveau_accel_init(struct nouveau_drm *drm) 183 { 184 struct nvif_device *device = &drm->client.device; 185 struct nvif_sclass *sclass; 186 u32 arg0, arg1; 187 int ret, i, n; 188 189 if (nouveau_noaccel) 190 return; 191 192 /* initialise synchronisation routines */ 193 /*XXX: this is crap, but the fence/channel stuff is a little 194 * backwards in some places. this will be fixed. 195 */ 196 ret = n = nvif_object_sclass_get(&device->object, &sclass); 197 if (ret < 0) 198 return; 199 200 for (ret = -ENOSYS, i = 0; i < n; i++) { 201 switch (sclass[i].oclass) { 202 case NV03_CHANNEL_DMA: 203 ret = nv04_fence_create(drm); 204 break; 205 case NV10_CHANNEL_DMA: 206 ret = nv10_fence_create(drm); 207 break; 208 case NV17_CHANNEL_DMA: 209 case NV40_CHANNEL_DMA: 210 ret = nv17_fence_create(drm); 211 break; 212 case NV50_CHANNEL_GPFIFO: 213 ret = nv50_fence_create(drm); 214 break; 215 case G82_CHANNEL_GPFIFO: 216 ret = nv84_fence_create(drm); 217 break; 218 case FERMI_CHANNEL_GPFIFO: 219 case KEPLER_CHANNEL_GPFIFO_A: 220 case KEPLER_CHANNEL_GPFIFO_B: 221 case MAXWELL_CHANNEL_GPFIFO_A: 222 case PASCAL_CHANNEL_GPFIFO_A: 223 ret = nvc0_fence_create(drm); 224 break; 225 default: 226 break; 227 } 228 } 229 230 nvif_object_sclass_put(&sclass); 231 if (ret) { 232 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 233 nouveau_accel_fini(drm); 234 return; 235 } 236 237 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 238 ret = nouveau_channel_new(drm, &drm->client.device, 239 NVA06F_V0_ENGINE_CE0 | 240 NVA06F_V0_ENGINE_CE1, 241 0, &drm->cechan); 242 if (ret) 243 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 244 245 arg0 = NVA06F_V0_ENGINE_GR; 246 arg1 = 1; 247 } else 248 if (device->info.chipset >= 0xa3 && 249 device->info.chipset != 0xaa && 250 device->info.chipset != 0xac) { 251 ret = nouveau_channel_new(drm, &drm->client.device, 252 NvDmaFB, NvDmaTT, &drm->cechan); 253 if (ret) 254 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 255 256 arg0 = NvDmaFB; 257 arg1 = NvDmaTT; 258 } else { 259 arg0 = NvDmaFB; 260 arg1 = NvDmaTT; 261 } 262 263 ret = nouveau_channel_new(drm, &drm->client.device, 264 arg0, arg1, &drm->channel); 265 if (ret) { 266 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 267 nouveau_accel_fini(drm); 268 return; 269 } 270 271 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 272 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 273 if (ret == 0) { 274 ret = RING_SPACE(drm->channel, 2); 275 if (ret == 0) { 276 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 277 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 278 OUT_RING (drm->channel, NVDRM_NVSW); 279 } else 280 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 281 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 282 OUT_RING (drm->channel, 0x001f0000); 283 } 284 } 285 286 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete, 287 false, NV04_NVSW_NTFY_UEVENT, 288 NULL, 0, 0, &drm->flip); 289 if (ret == 0) 290 ret = nvif_notify_get(&drm->flip); 291 if (ret) { 292 nouveau_accel_fini(drm); 293 return; 294 } 295 } 296 297 if (ret) { 298 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 299 nouveau_accel_fini(drm); 300 return; 301 } 302 303 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 304 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0, 305 false, NULL, &drm->notify); 306 if (ret) { 307 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 308 nouveau_accel_fini(drm); 309 return; 310 } 311 312 ret = nvif_object_init(&drm->channel->user, NvNotify0, 313 NV_DMA_IN_MEMORY, 314 &(struct nv_dma_v0) { 315 .target = NV_DMA_V0_TARGET_VRAM, 316 .access = NV_DMA_V0_ACCESS_RDWR, 317 .start = drm->notify->addr, 318 .limit = drm->notify->addr + 31 319 }, sizeof(struct nv_dma_v0), 320 &drm->ntfy); 321 if (ret) { 322 nouveau_accel_fini(drm); 323 return; 324 } 325 } 326 327 328 nouveau_bo_move_init(drm); 329 } 330 331 static int nouveau_drm_probe(struct pci_dev *pdev, 332 const struct pci_device_id *pent) 333 { 334 struct nvkm_device *device; 335 struct apertures_struct *aper; 336 bool boot = false; 337 int ret; 338 339 if (vga_switcheroo_client_probe_defer(pdev)) 340 return -EPROBE_DEFER; 341 342 /* We need to check that the chipset is supported before booting 343 * fbdev off the hardware, as there's no way to put it back. 344 */ 345 ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device); 346 if (ret) 347 return ret; 348 349 nvkm_device_del(&device); 350 351 /* Remove conflicting drivers (vesafb, efifb etc). */ 352 aper = alloc_apertures(3); 353 if (!aper) 354 return -ENOMEM; 355 356 aper->ranges[0].base = pci_resource_start(pdev, 1); 357 aper->ranges[0].size = pci_resource_len(pdev, 1); 358 aper->count = 1; 359 360 if (pci_resource_len(pdev, 2)) { 361 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 362 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 363 aper->count++; 364 } 365 366 if (pci_resource_len(pdev, 3)) { 367 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 368 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 369 aper->count++; 370 } 371 372 #ifdef CONFIG_X86 373 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 374 #endif 375 if (nouveau_modeset != 2) 376 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot); 377 kfree(aper); 378 379 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 380 true, true, ~0ULL, &device); 381 if (ret) 382 return ret; 383 384 pci_set_master(pdev); 385 386 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 387 if (ret) { 388 nvkm_device_del(&device); 389 return ret; 390 } 391 392 return 0; 393 } 394 395 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 396 397 static void 398 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 399 { 400 struct pci_dev *pdev = drm->dev->pdev; 401 402 if (!pdev) { 403 NV_DEBUG(drm, "not a PCI device; no HDMI\n"); 404 drm->hdmi_device = NULL; 405 return; 406 } 407 408 /* subfunction one is a hdmi audio device? */ 409 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 410 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 411 412 if (!drm->hdmi_device) { 413 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 414 return; 415 } 416 417 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 418 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 419 pci_dev_put(drm->hdmi_device); 420 drm->hdmi_device = NULL; 421 return; 422 } 423 } 424 425 static int 426 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 427 { 428 struct nouveau_drm *drm; 429 int ret; 430 431 if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL))) 432 return -ENOMEM; 433 dev->dev_private = drm; 434 drm->dev = dev; 435 436 ret = nouveau_cli_init(drm, "DRM", &drm->client); 437 if (ret) 438 return ret; 439 440 dev->irq_enabled = true; 441 442 nvxx_client(&drm->client.base)->debug = 443 nvkm_dbgopt(nouveau_debug, "DRM"); 444 445 INIT_LIST_HEAD(&drm->clients); 446 spin_lock_init(&drm->tile.lock); 447 448 nouveau_get_hdmi_dev(drm); 449 450 /* workaround an odd issue on nvc1 by disabling the device's 451 * nosnoop capability. hopefully won't cause issues until a 452 * better fix is found - assuming there is one... 453 */ 454 if (drm->client.device.info.chipset == 0xc1) 455 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000); 456 457 nouveau_vga_init(drm); 458 459 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 460 if (!nvxx_device(&drm->client.device)->mmu) { 461 ret = -ENOSYS; 462 goto fail_device; 463 } 464 465 ret = nvkm_vm_new(nvxx_device(&drm->client.device), 466 0, (1ULL << 40), 0x1000, NULL, 467 &drm->client.vm); 468 if (ret) 469 goto fail_device; 470 471 nvxx_client(&drm->client.base)->vm = drm->client.vm; 472 } 473 474 ret = nouveau_ttm_init(drm); 475 if (ret) 476 goto fail_ttm; 477 478 ret = nouveau_bios_init(dev); 479 if (ret) 480 goto fail_bios; 481 482 ret = nouveau_display_create(dev); 483 if (ret) 484 goto fail_dispctor; 485 486 if (dev->mode_config.num_crtc) { 487 ret = nouveau_display_init(dev); 488 if (ret) 489 goto fail_dispinit; 490 } 491 492 nouveau_debugfs_init(drm); 493 nouveau_hwmon_init(dev); 494 nouveau_accel_init(drm); 495 nouveau_fbcon_init(dev); 496 nouveau_led_init(dev); 497 498 if (nouveau_pmops_runtime()) { 499 pm_runtime_use_autosuspend(dev->dev); 500 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 501 pm_runtime_set_active(dev->dev); 502 pm_runtime_allow(dev->dev); 503 pm_runtime_mark_last_busy(dev->dev); 504 pm_runtime_put(dev->dev); 505 } else { 506 /* enable polling for external displays */ 507 drm_kms_helper_poll_enable(dev); 508 } 509 return 0; 510 511 fail_dispinit: 512 nouveau_display_destroy(dev); 513 fail_dispctor: 514 nouveau_bios_takedown(dev); 515 fail_bios: 516 nouveau_ttm_fini(drm); 517 fail_ttm: 518 nouveau_vga_fini(drm); 519 fail_device: 520 nouveau_cli_fini(&drm->client); 521 kfree(drm); 522 return ret; 523 } 524 525 static void 526 nouveau_drm_unload(struct drm_device *dev) 527 { 528 struct nouveau_drm *drm = nouveau_drm(dev); 529 530 if (nouveau_pmops_runtime()) { 531 pm_runtime_get_sync(dev->dev); 532 pm_runtime_forbid(dev->dev); 533 } 534 535 nouveau_led_fini(dev); 536 nouveau_fbcon_fini(dev); 537 nouveau_accel_fini(drm); 538 nouveau_hwmon_fini(dev); 539 nouveau_debugfs_fini(drm); 540 541 if (dev->mode_config.num_crtc) 542 nouveau_display_fini(dev, false); 543 nouveau_display_destroy(dev); 544 545 nouveau_bios_takedown(dev); 546 547 nouveau_ttm_fini(drm); 548 nouveau_vga_fini(drm); 549 550 if (drm->hdmi_device) 551 pci_dev_put(drm->hdmi_device); 552 nouveau_cli_fini(&drm->client); 553 kfree(drm); 554 } 555 556 void 557 nouveau_drm_device_remove(struct drm_device *dev) 558 { 559 struct nouveau_drm *drm = nouveau_drm(dev); 560 struct nvkm_client *client; 561 struct nvkm_device *device; 562 563 dev->irq_enabled = false; 564 client = nvxx_client(&drm->client.base); 565 device = nvkm_device_find(client->device); 566 drm_put_dev(dev); 567 568 nvkm_device_del(&device); 569 } 570 571 static void 572 nouveau_drm_remove(struct pci_dev *pdev) 573 { 574 struct drm_device *dev = pci_get_drvdata(pdev); 575 576 nouveau_drm_device_remove(dev); 577 } 578 579 static int 580 nouveau_do_suspend(struct drm_device *dev, bool runtime) 581 { 582 struct nouveau_drm *drm = nouveau_drm(dev); 583 int ret; 584 585 nouveau_led_suspend(dev); 586 587 if (dev->mode_config.num_crtc) { 588 NV_INFO(drm, "suspending console...\n"); 589 nouveau_fbcon_set_suspend(dev, 1); 590 NV_INFO(drm, "suspending display...\n"); 591 ret = nouveau_display_suspend(dev, runtime); 592 if (ret) 593 return ret; 594 } 595 596 NV_INFO(drm, "evicting buffers...\n"); 597 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 598 599 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 600 if (drm->cechan) { 601 ret = nouveau_channel_idle(drm->cechan); 602 if (ret) 603 goto fail_display; 604 } 605 606 if (drm->channel) { 607 ret = nouveau_channel_idle(drm->channel); 608 if (ret) 609 goto fail_display; 610 } 611 612 NV_INFO(drm, "suspending fence...\n"); 613 if (drm->fence && nouveau_fence(drm)->suspend) { 614 if (!nouveau_fence(drm)->suspend(drm)) { 615 ret = -ENOMEM; 616 goto fail_display; 617 } 618 } 619 620 NV_INFO(drm, "suspending object tree...\n"); 621 ret = nvif_client_suspend(&drm->client.base); 622 if (ret) 623 goto fail_client; 624 625 return 0; 626 627 fail_client: 628 if (drm->fence && nouveau_fence(drm)->resume) 629 nouveau_fence(drm)->resume(drm); 630 631 fail_display: 632 if (dev->mode_config.num_crtc) { 633 NV_INFO(drm, "resuming display...\n"); 634 nouveau_display_resume(dev, runtime); 635 } 636 return ret; 637 } 638 639 static int 640 nouveau_do_resume(struct drm_device *dev, bool runtime) 641 { 642 struct nouveau_drm *drm = nouveau_drm(dev); 643 644 NV_INFO(drm, "resuming object tree...\n"); 645 nvif_client_resume(&drm->client.base); 646 647 NV_INFO(drm, "resuming fence...\n"); 648 if (drm->fence && nouveau_fence(drm)->resume) 649 nouveau_fence(drm)->resume(drm); 650 651 nouveau_run_vbios_init(dev); 652 653 if (dev->mode_config.num_crtc) { 654 NV_INFO(drm, "resuming display...\n"); 655 nouveau_display_resume(dev, runtime); 656 NV_INFO(drm, "resuming console...\n"); 657 nouveau_fbcon_set_suspend(dev, 0); 658 } 659 660 nouveau_led_resume(dev); 661 662 return 0; 663 } 664 665 int 666 nouveau_pmops_suspend(struct device *dev) 667 { 668 struct pci_dev *pdev = to_pci_dev(dev); 669 struct drm_device *drm_dev = pci_get_drvdata(pdev); 670 int ret; 671 672 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 673 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 674 return 0; 675 676 ret = nouveau_do_suspend(drm_dev, false); 677 if (ret) 678 return ret; 679 680 pci_save_state(pdev); 681 pci_disable_device(pdev); 682 pci_set_power_state(pdev, PCI_D3hot); 683 udelay(200); 684 return 0; 685 } 686 687 int 688 nouveau_pmops_resume(struct device *dev) 689 { 690 struct pci_dev *pdev = to_pci_dev(dev); 691 struct drm_device *drm_dev = pci_get_drvdata(pdev); 692 int ret; 693 694 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 695 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 696 return 0; 697 698 pci_set_power_state(pdev, PCI_D0); 699 pci_restore_state(pdev); 700 ret = pci_enable_device(pdev); 701 if (ret) 702 return ret; 703 pci_set_master(pdev); 704 705 ret = nouveau_do_resume(drm_dev, false); 706 707 /* Monitors may have been connected / disconnected during suspend */ 708 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 709 710 return ret; 711 } 712 713 static int 714 nouveau_pmops_freeze(struct device *dev) 715 { 716 struct pci_dev *pdev = to_pci_dev(dev); 717 struct drm_device *drm_dev = pci_get_drvdata(pdev); 718 return nouveau_do_suspend(drm_dev, false); 719 } 720 721 static int 722 nouveau_pmops_thaw(struct device *dev) 723 { 724 struct pci_dev *pdev = to_pci_dev(dev); 725 struct drm_device *drm_dev = pci_get_drvdata(pdev); 726 return nouveau_do_resume(drm_dev, false); 727 } 728 729 bool 730 nouveau_pmops_runtime(void) 731 { 732 if (nouveau_runtime_pm == -1) 733 return nouveau_is_optimus() || nouveau_is_v1_dsm(); 734 return nouveau_runtime_pm == 1; 735 } 736 737 static int 738 nouveau_pmops_runtime_suspend(struct device *dev) 739 { 740 struct pci_dev *pdev = to_pci_dev(dev); 741 struct drm_device *drm_dev = pci_get_drvdata(pdev); 742 int ret; 743 744 if (!nouveau_pmops_runtime()) { 745 pm_runtime_forbid(dev); 746 return -EBUSY; 747 } 748 749 drm_kms_helper_poll_disable(drm_dev); 750 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 751 nouveau_switcheroo_optimus_dsm(); 752 ret = nouveau_do_suspend(drm_dev, true); 753 pci_save_state(pdev); 754 pci_disable_device(pdev); 755 pci_ignore_hotplug(pdev); 756 pci_set_power_state(pdev, PCI_D3cold); 757 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 758 return ret; 759 } 760 761 static int 762 nouveau_pmops_runtime_resume(struct device *dev) 763 { 764 struct pci_dev *pdev = to_pci_dev(dev); 765 struct drm_device *drm_dev = pci_get_drvdata(pdev); 766 struct nvif_device *device = &nouveau_drm(drm_dev)->client.device; 767 int ret; 768 769 if (!nouveau_pmops_runtime()) { 770 pm_runtime_forbid(dev); 771 return -EBUSY; 772 } 773 774 pci_set_power_state(pdev, PCI_D0); 775 pci_restore_state(pdev); 776 ret = pci_enable_device(pdev); 777 if (ret) 778 return ret; 779 pci_set_master(pdev); 780 781 ret = nouveau_do_resume(drm_dev, true); 782 783 /* do magic */ 784 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 785 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 786 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 787 788 /* Monitors may have been connected / disconnected during suspend */ 789 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 790 791 return ret; 792 } 793 794 static int 795 nouveau_pmops_runtime_idle(struct device *dev) 796 { 797 struct pci_dev *pdev = to_pci_dev(dev); 798 struct drm_device *drm_dev = pci_get_drvdata(pdev); 799 struct nouveau_drm *drm = nouveau_drm(drm_dev); 800 struct drm_crtc *crtc; 801 802 if (!nouveau_pmops_runtime()) { 803 pm_runtime_forbid(dev); 804 return -EBUSY; 805 } 806 807 /* if we have a hdmi audio device - make sure it has a driver loaded */ 808 if (drm->hdmi_device) { 809 if (!drm->hdmi_device->driver) { 810 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 811 pm_runtime_mark_last_busy(dev); 812 return -EBUSY; 813 } 814 } 815 816 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 817 if (crtc->enabled) { 818 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 819 return -EBUSY; 820 } 821 } 822 pm_runtime_mark_last_busy(dev); 823 pm_runtime_autosuspend(dev); 824 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 825 return 1; 826 } 827 828 static int 829 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 830 { 831 struct nouveau_drm *drm = nouveau_drm(dev); 832 struct nouveau_cli *cli; 833 char name[32], tmpname[TASK_COMM_LEN]; 834 int ret; 835 836 /* need to bring up power immediately if opening device */ 837 ret = pm_runtime_get_sync(dev->dev); 838 if (ret < 0 && ret != -EACCES) 839 return ret; 840 841 get_task_comm(tmpname, current); 842 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 843 844 if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) 845 return ret; 846 847 ret = nouveau_cli_init(drm, name, cli); 848 if (ret) 849 goto done; 850 851 cli->base.super = false; 852 853 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 854 ret = nvkm_vm_new(nvxx_device(&drm->client.device), 0, 855 (1ULL << 40), 0x1000, NULL, &cli->vm); 856 if (ret) 857 goto done; 858 859 nvxx_client(&cli->base)->vm = cli->vm; 860 } 861 862 fpriv->driver_priv = cli; 863 864 mutex_lock(&drm->client.mutex); 865 list_add(&cli->head, &drm->clients); 866 mutex_unlock(&drm->client.mutex); 867 868 done: 869 if (ret && cli) { 870 nouveau_cli_fini(cli); 871 kfree(cli); 872 } 873 874 pm_runtime_mark_last_busy(dev->dev); 875 pm_runtime_put_autosuspend(dev->dev); 876 return ret; 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 struct nouveau_drm *drm = nouveau_drm(dev); 884 885 pm_runtime_get_sync(dev->dev); 886 887 mutex_lock(&cli->mutex); 888 if (cli->abi16) 889 nouveau_abi16_fini(cli->abi16); 890 mutex_unlock(&cli->mutex); 891 892 mutex_lock(&drm->client.mutex); 893 list_del(&cli->head); 894 mutex_unlock(&drm->client.mutex); 895 896 nouveau_cli_fini(cli); 897 kfree(cli); 898 pm_runtime_mark_last_busy(dev->dev); 899 pm_runtime_put_autosuspend(dev->dev); 900 } 901 902 static const struct drm_ioctl_desc 903 nouveau_ioctls[] = { 904 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 905 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 906 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 907 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 908 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 909 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 910 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 911 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 912 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 913 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 914 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 915 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 916 }; 917 918 long 919 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 920 { 921 struct drm_file *filp = file->private_data; 922 struct drm_device *dev = filp->minor->dev; 923 long ret; 924 925 ret = pm_runtime_get_sync(dev->dev); 926 if (ret < 0 && ret != -EACCES) 927 return ret; 928 929 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 930 case DRM_NOUVEAU_NVIF: 931 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 932 break; 933 default: 934 ret = drm_ioctl(file, cmd, arg); 935 break; 936 } 937 938 pm_runtime_mark_last_busy(dev->dev); 939 pm_runtime_put_autosuspend(dev->dev); 940 return ret; 941 } 942 943 static const struct file_operations 944 nouveau_driver_fops = { 945 .owner = THIS_MODULE, 946 .open = drm_open, 947 .release = drm_release, 948 .unlocked_ioctl = nouveau_drm_ioctl, 949 .mmap = nouveau_ttm_mmap, 950 .poll = drm_poll, 951 .read = drm_read, 952 #if defined(CONFIG_COMPAT) 953 .compat_ioctl = nouveau_compat_ioctl, 954 #endif 955 .llseek = noop_llseek, 956 }; 957 958 static struct drm_driver 959 driver_stub = { 960 .driver_features = 961 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 962 DRIVER_KMS_LEGACY_CONTEXT, 963 964 .load = nouveau_drm_load, 965 .unload = nouveau_drm_unload, 966 .open = nouveau_drm_open, 967 .postclose = nouveau_drm_postclose, 968 .lastclose = nouveau_vga_lastclose, 969 970 #if defined(CONFIG_DEBUG_FS) 971 .debugfs_init = nouveau_drm_debugfs_init, 972 #endif 973 974 .enable_vblank = nouveau_display_vblank_enable, 975 .disable_vblank = nouveau_display_vblank_disable, 976 .get_scanout_position = nouveau_display_scanoutpos, 977 .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos, 978 979 .ioctls = nouveau_ioctls, 980 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 981 .fops = &nouveau_driver_fops, 982 983 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 984 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 985 .gem_prime_export = drm_gem_prime_export, 986 .gem_prime_import = drm_gem_prime_import, 987 .gem_prime_pin = nouveau_gem_prime_pin, 988 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 989 .gem_prime_unpin = nouveau_gem_prime_unpin, 990 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 991 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 992 .gem_prime_vmap = nouveau_gem_prime_vmap, 993 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 994 995 .gem_free_object_unlocked = nouveau_gem_object_del, 996 .gem_open_object = nouveau_gem_object_open, 997 .gem_close_object = nouveau_gem_object_close, 998 999 .dumb_create = nouveau_display_dumb_create, 1000 .dumb_map_offset = nouveau_display_dumb_map_offset, 1001 .dumb_destroy = drm_gem_dumb_destroy, 1002 1003 .name = DRIVER_NAME, 1004 .desc = DRIVER_DESC, 1005 #ifdef GIT_REVISION 1006 .date = GIT_REVISION, 1007 #else 1008 .date = DRIVER_DATE, 1009 #endif 1010 .major = DRIVER_MAJOR, 1011 .minor = DRIVER_MINOR, 1012 .patchlevel = DRIVER_PATCHLEVEL, 1013 }; 1014 1015 static struct pci_device_id 1016 nouveau_drm_pci_table[] = { 1017 { 1018 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1019 .class = PCI_BASE_CLASS_DISPLAY << 16, 1020 .class_mask = 0xff << 16, 1021 }, 1022 { 1023 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1024 .class = PCI_BASE_CLASS_DISPLAY << 16, 1025 .class_mask = 0xff << 16, 1026 }, 1027 {} 1028 }; 1029 1030 static void nouveau_display_options(void) 1031 { 1032 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1033 1034 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1035 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1036 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1037 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1038 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1039 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1040 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1041 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1042 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1043 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1044 DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz); 1045 } 1046 1047 static const struct dev_pm_ops nouveau_pm_ops = { 1048 .suspend = nouveau_pmops_suspend, 1049 .resume = nouveau_pmops_resume, 1050 .freeze = nouveau_pmops_freeze, 1051 .thaw = nouveau_pmops_thaw, 1052 .poweroff = nouveau_pmops_freeze, 1053 .restore = nouveau_pmops_resume, 1054 .runtime_suspend = nouveau_pmops_runtime_suspend, 1055 .runtime_resume = nouveau_pmops_runtime_resume, 1056 .runtime_idle = nouveau_pmops_runtime_idle, 1057 }; 1058 1059 static struct pci_driver 1060 nouveau_drm_pci_driver = { 1061 .name = "nouveau", 1062 .id_table = nouveau_drm_pci_table, 1063 .probe = nouveau_drm_probe, 1064 .remove = nouveau_drm_remove, 1065 .driver.pm = &nouveau_pm_ops, 1066 }; 1067 1068 struct drm_device * 1069 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1070 struct platform_device *pdev, 1071 struct nvkm_device **pdevice) 1072 { 1073 struct drm_device *drm; 1074 int err; 1075 1076 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1077 true, true, ~0ULL, pdevice); 1078 if (err) 1079 goto err_free; 1080 1081 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1082 if (IS_ERR(drm)) { 1083 err = PTR_ERR(drm); 1084 goto err_free; 1085 } 1086 1087 platform_set_drvdata(pdev, drm); 1088 1089 return drm; 1090 1091 err_free: 1092 nvkm_device_del(pdevice); 1093 1094 return ERR_PTR(err); 1095 } 1096 1097 static int __init 1098 nouveau_drm_init(void) 1099 { 1100 driver_pci = driver_stub; 1101 driver_pci.set_busid = drm_pci_set_busid; 1102 driver_platform = driver_stub; 1103 1104 nouveau_display_options(); 1105 1106 if (nouveau_modeset == -1) { 1107 if (vgacon_text_force()) 1108 nouveau_modeset = 0; 1109 } 1110 1111 if (!nouveau_modeset) 1112 return 0; 1113 1114 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1115 platform_driver_register(&nouveau_platform_driver); 1116 #endif 1117 1118 nouveau_register_dsm_handler(); 1119 nouveau_backlight_ctor(); 1120 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1121 } 1122 1123 static void __exit 1124 nouveau_drm_exit(void) 1125 { 1126 if (!nouveau_modeset) 1127 return; 1128 1129 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1130 nouveau_backlight_dtor(); 1131 nouveau_unregister_dsm_handler(); 1132 1133 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1134 platform_driver_unregister(&nouveau_platform_driver); 1135 #endif 1136 } 1137 1138 module_init(nouveau_drm_init); 1139 module_exit(nouveau_drm_exit); 1140 1141 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1142 MODULE_AUTHOR(DRIVER_AUTHOR); 1143 MODULE_DESCRIPTION(DRIVER_DESC); 1144 MODULE_LICENSE("GPL and additional rights"); 1145