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/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 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_runtime_pm != 0) { 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 } 506 return 0; 507 508 fail_dispinit: 509 nouveau_display_destroy(dev); 510 fail_dispctor: 511 nouveau_bios_takedown(dev); 512 fail_bios: 513 nouveau_ttm_fini(drm); 514 fail_ttm: 515 nouveau_vga_fini(drm); 516 fail_device: 517 nouveau_cli_fini(&drm->client); 518 kfree(drm); 519 return ret; 520 } 521 522 static void 523 nouveau_drm_unload(struct drm_device *dev) 524 { 525 struct nouveau_drm *drm = nouveau_drm(dev); 526 527 if (nouveau_runtime_pm != 0) { 528 pm_runtime_get_sync(dev->dev); 529 pm_runtime_forbid(dev->dev); 530 } 531 532 nouveau_led_fini(dev); 533 nouveau_fbcon_fini(dev); 534 nouveau_accel_fini(drm); 535 nouveau_hwmon_fini(dev); 536 nouveau_debugfs_fini(drm); 537 538 if (dev->mode_config.num_crtc) 539 nouveau_display_fini(dev, false); 540 nouveau_display_destroy(dev); 541 542 nouveau_bios_takedown(dev); 543 544 nouveau_ttm_fini(drm); 545 nouveau_vga_fini(drm); 546 547 if (drm->hdmi_device) 548 pci_dev_put(drm->hdmi_device); 549 nouveau_cli_fini(&drm->client); 550 kfree(drm); 551 } 552 553 void 554 nouveau_drm_device_remove(struct drm_device *dev) 555 { 556 struct nouveau_drm *drm = nouveau_drm(dev); 557 struct nvkm_client *client; 558 struct nvkm_device *device; 559 560 dev->irq_enabled = false; 561 client = nvxx_client(&drm->client.base); 562 device = nvkm_device_find(client->device); 563 drm_put_dev(dev); 564 565 nvkm_device_del(&device); 566 } 567 568 static void 569 nouveau_drm_remove(struct pci_dev *pdev) 570 { 571 struct drm_device *dev = pci_get_drvdata(pdev); 572 573 nouveau_drm_device_remove(dev); 574 } 575 576 static int 577 nouveau_do_suspend(struct drm_device *dev, bool runtime) 578 { 579 struct nouveau_drm *drm = nouveau_drm(dev); 580 int ret; 581 582 nouveau_led_suspend(dev); 583 584 if (dev->mode_config.num_crtc) { 585 NV_INFO(drm, "suspending console...\n"); 586 nouveau_fbcon_set_suspend(dev, 1); 587 NV_INFO(drm, "suspending display...\n"); 588 ret = nouveau_display_suspend(dev, runtime); 589 if (ret) 590 return ret; 591 } 592 593 NV_INFO(drm, "evicting buffers...\n"); 594 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 595 596 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 597 if (drm->cechan) { 598 ret = nouveau_channel_idle(drm->cechan); 599 if (ret) 600 goto fail_display; 601 } 602 603 if (drm->channel) { 604 ret = nouveau_channel_idle(drm->channel); 605 if (ret) 606 goto fail_display; 607 } 608 609 NV_INFO(drm, "suspending fence...\n"); 610 if (drm->fence && nouveau_fence(drm)->suspend) { 611 if (!nouveau_fence(drm)->suspend(drm)) { 612 ret = -ENOMEM; 613 goto fail_display; 614 } 615 } 616 617 NV_INFO(drm, "suspending object tree...\n"); 618 ret = nvif_client_suspend(&drm->client.base); 619 if (ret) 620 goto fail_client; 621 622 return 0; 623 624 fail_client: 625 if (drm->fence && nouveau_fence(drm)->resume) 626 nouveau_fence(drm)->resume(drm); 627 628 fail_display: 629 if (dev->mode_config.num_crtc) { 630 NV_INFO(drm, "resuming display...\n"); 631 nouveau_display_resume(dev, runtime); 632 } 633 return ret; 634 } 635 636 static int 637 nouveau_do_resume(struct drm_device *dev, bool runtime) 638 { 639 struct nouveau_drm *drm = nouveau_drm(dev); 640 641 NV_INFO(drm, "resuming object tree...\n"); 642 nvif_client_resume(&drm->client.base); 643 644 NV_INFO(drm, "resuming fence...\n"); 645 if (drm->fence && nouveau_fence(drm)->resume) 646 nouveau_fence(drm)->resume(drm); 647 648 nouveau_run_vbios_init(dev); 649 650 if (dev->mode_config.num_crtc) { 651 NV_INFO(drm, "resuming display...\n"); 652 nouveau_display_resume(dev, runtime); 653 NV_INFO(drm, "resuming console...\n"); 654 nouveau_fbcon_set_suspend(dev, 0); 655 } 656 657 nouveau_led_resume(dev); 658 659 return 0; 660 } 661 662 int 663 nouveau_pmops_suspend(struct device *dev) 664 { 665 struct pci_dev *pdev = to_pci_dev(dev); 666 struct drm_device *drm_dev = pci_get_drvdata(pdev); 667 int ret; 668 669 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 670 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 671 return 0; 672 673 ret = nouveau_do_suspend(drm_dev, false); 674 if (ret) 675 return ret; 676 677 pci_save_state(pdev); 678 pci_disable_device(pdev); 679 pci_set_power_state(pdev, PCI_D3hot); 680 udelay(200); 681 return 0; 682 } 683 684 int 685 nouveau_pmops_resume(struct device *dev) 686 { 687 struct pci_dev *pdev = to_pci_dev(dev); 688 struct drm_device *drm_dev = pci_get_drvdata(pdev); 689 int ret; 690 691 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF || 692 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) 693 return 0; 694 695 pci_set_power_state(pdev, PCI_D0); 696 pci_restore_state(pdev); 697 ret = pci_enable_device(pdev); 698 if (ret) 699 return ret; 700 pci_set_master(pdev); 701 702 ret = nouveau_do_resume(drm_dev, false); 703 704 /* Monitors may have been connected / disconnected during suspend */ 705 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 706 707 return ret; 708 } 709 710 static int 711 nouveau_pmops_freeze(struct device *dev) 712 { 713 struct pci_dev *pdev = to_pci_dev(dev); 714 struct drm_device *drm_dev = pci_get_drvdata(pdev); 715 return nouveau_do_suspend(drm_dev, false); 716 } 717 718 static int 719 nouveau_pmops_thaw(struct device *dev) 720 { 721 struct pci_dev *pdev = to_pci_dev(dev); 722 struct drm_device *drm_dev = pci_get_drvdata(pdev); 723 return nouveau_do_resume(drm_dev, false); 724 } 725 726 static int 727 nouveau_pmops_runtime_suspend(struct device *dev) 728 { 729 struct pci_dev *pdev = to_pci_dev(dev); 730 struct drm_device *drm_dev = pci_get_drvdata(pdev); 731 int ret; 732 733 if (nouveau_runtime_pm == 0) { 734 pm_runtime_forbid(dev); 735 return -EBUSY; 736 } 737 738 /* are we optimus enabled? */ 739 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 740 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 741 pm_runtime_forbid(dev); 742 return -EBUSY; 743 } 744 745 drm_kms_helper_poll_disable(drm_dev); 746 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 747 nouveau_switcheroo_optimus_dsm(); 748 ret = nouveau_do_suspend(drm_dev, true); 749 pci_save_state(pdev); 750 pci_disable_device(pdev); 751 pci_ignore_hotplug(pdev); 752 pci_set_power_state(pdev, PCI_D3cold); 753 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 754 return ret; 755 } 756 757 static int 758 nouveau_pmops_runtime_resume(struct device *dev) 759 { 760 struct pci_dev *pdev = to_pci_dev(dev); 761 struct drm_device *drm_dev = pci_get_drvdata(pdev); 762 struct nvif_device *device = &nouveau_drm(drm_dev)->client.device; 763 int ret; 764 765 if (nouveau_runtime_pm == 0) 766 return -EINVAL; 767 768 pci_set_power_state(pdev, PCI_D0); 769 pci_restore_state(pdev); 770 ret = pci_enable_device(pdev); 771 if (ret) 772 return ret; 773 pci_set_master(pdev); 774 775 ret = nouveau_do_resume(drm_dev, true); 776 777 if (!drm_dev->mode_config.poll_enabled) 778 drm_kms_helper_poll_enable(drm_dev); 779 780 /* do magic */ 781 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 782 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 783 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 784 785 /* Monitors may have been connected / disconnected during suspend */ 786 schedule_work(&nouveau_drm(drm_dev)->hpd_work); 787 788 return ret; 789 } 790 791 static int 792 nouveau_pmops_runtime_idle(struct device *dev) 793 { 794 struct pci_dev *pdev = to_pci_dev(dev); 795 struct drm_device *drm_dev = pci_get_drvdata(pdev); 796 struct nouveau_drm *drm = nouveau_drm(drm_dev); 797 struct drm_crtc *crtc; 798 799 if (nouveau_runtime_pm == 0) { 800 pm_runtime_forbid(dev); 801 return -EBUSY; 802 } 803 804 /* are we optimus enabled? */ 805 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 806 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 807 pm_runtime_forbid(dev); 808 return -EBUSY; 809 } 810 811 /* if we have a hdmi audio device - make sure it has a driver loaded */ 812 if (drm->hdmi_device) { 813 if (!drm->hdmi_device->driver) { 814 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 815 pm_runtime_mark_last_busy(dev); 816 return -EBUSY; 817 } 818 } 819 820 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 821 if (crtc->enabled) { 822 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 823 return -EBUSY; 824 } 825 } 826 pm_runtime_mark_last_busy(dev); 827 pm_runtime_autosuspend(dev); 828 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 829 return 1; 830 } 831 832 static int 833 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 834 { 835 struct nouveau_drm *drm = nouveau_drm(dev); 836 struct nouveau_cli *cli; 837 char name[32], tmpname[TASK_COMM_LEN]; 838 int ret; 839 840 /* need to bring up power immediately if opening device */ 841 ret = pm_runtime_get_sync(dev->dev); 842 if (ret < 0 && ret != -EACCES) 843 return ret; 844 845 get_task_comm(tmpname, current); 846 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 847 848 if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) 849 return ret; 850 851 ret = nouveau_cli_init(drm, name, cli); 852 if (ret) 853 goto done; 854 855 cli->base.super = false; 856 857 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 858 ret = nvkm_vm_new(nvxx_device(&drm->client.device), 0, 859 (1ULL << 40), 0x1000, NULL, &cli->vm); 860 if (ret) 861 goto done; 862 863 nvxx_client(&cli->base)->vm = cli->vm; 864 } 865 866 fpriv->driver_priv = cli; 867 868 mutex_lock(&drm->client.mutex); 869 list_add(&cli->head, &drm->clients); 870 mutex_unlock(&drm->client.mutex); 871 872 done: 873 if (ret && cli) { 874 nouveau_cli_fini(cli); 875 kfree(cli); 876 } 877 878 pm_runtime_mark_last_busy(dev->dev); 879 pm_runtime_put_autosuspend(dev->dev); 880 return ret; 881 } 882 883 static void 884 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 885 { 886 struct nouveau_cli *cli = nouveau_cli(fpriv); 887 struct nouveau_drm *drm = nouveau_drm(dev); 888 889 pm_runtime_get_sync(dev->dev); 890 891 mutex_lock(&cli->mutex); 892 if (cli->abi16) 893 nouveau_abi16_fini(cli->abi16); 894 mutex_unlock(&cli->mutex); 895 896 mutex_lock(&drm->client.mutex); 897 list_del(&cli->head); 898 mutex_unlock(&drm->client.mutex); 899 900 nouveau_cli_fini(cli); 901 kfree(cli); 902 pm_runtime_mark_last_busy(dev->dev); 903 pm_runtime_put_autosuspend(dev->dev); 904 } 905 906 static const struct drm_ioctl_desc 907 nouveau_ioctls[] = { 908 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 909 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 910 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 911 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 912 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 913 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 914 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 915 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 916 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 917 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 918 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 919 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 920 }; 921 922 long 923 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 924 { 925 struct drm_file *filp = file->private_data; 926 struct drm_device *dev = filp->minor->dev; 927 long ret; 928 929 ret = pm_runtime_get_sync(dev->dev); 930 if (ret < 0 && ret != -EACCES) 931 return ret; 932 933 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 934 case DRM_NOUVEAU_NVIF: 935 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 936 break; 937 default: 938 ret = drm_ioctl(file, cmd, arg); 939 break; 940 } 941 942 pm_runtime_mark_last_busy(dev->dev); 943 pm_runtime_put_autosuspend(dev->dev); 944 return ret; 945 } 946 947 static const struct file_operations 948 nouveau_driver_fops = { 949 .owner = THIS_MODULE, 950 .open = drm_open, 951 .release = drm_release, 952 .unlocked_ioctl = nouveau_drm_ioctl, 953 .mmap = nouveau_ttm_mmap, 954 .poll = drm_poll, 955 .read = drm_read, 956 #if defined(CONFIG_COMPAT) 957 .compat_ioctl = nouveau_compat_ioctl, 958 #endif 959 .llseek = noop_llseek, 960 }; 961 962 static struct drm_driver 963 driver_stub = { 964 .driver_features = 965 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 966 DRIVER_KMS_LEGACY_CONTEXT, 967 968 .load = nouveau_drm_load, 969 .unload = nouveau_drm_unload, 970 .open = nouveau_drm_open, 971 .postclose = nouveau_drm_postclose, 972 .lastclose = nouveau_vga_lastclose, 973 974 #if defined(CONFIG_DEBUG_FS) 975 .debugfs_init = nouveau_drm_debugfs_init, 976 #endif 977 978 .enable_vblank = nouveau_display_vblank_enable, 979 .disable_vblank = nouveau_display_vblank_disable, 980 .get_scanout_position = nouveau_display_scanoutpos, 981 .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos, 982 983 .ioctls = nouveau_ioctls, 984 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 985 .fops = &nouveau_driver_fops, 986 987 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 988 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 989 .gem_prime_export = drm_gem_prime_export, 990 .gem_prime_import = drm_gem_prime_import, 991 .gem_prime_pin = nouveau_gem_prime_pin, 992 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 993 .gem_prime_unpin = nouveau_gem_prime_unpin, 994 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 995 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 996 .gem_prime_vmap = nouveau_gem_prime_vmap, 997 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 998 999 .gem_free_object_unlocked = nouveau_gem_object_del, 1000 .gem_open_object = nouveau_gem_object_open, 1001 .gem_close_object = nouveau_gem_object_close, 1002 1003 .dumb_create = nouveau_display_dumb_create, 1004 .dumb_map_offset = nouveau_display_dumb_map_offset, 1005 .dumb_destroy = drm_gem_dumb_destroy, 1006 1007 .name = DRIVER_NAME, 1008 .desc = DRIVER_DESC, 1009 #ifdef GIT_REVISION 1010 .date = GIT_REVISION, 1011 #else 1012 .date = DRIVER_DATE, 1013 #endif 1014 .major = DRIVER_MAJOR, 1015 .minor = DRIVER_MINOR, 1016 .patchlevel = DRIVER_PATCHLEVEL, 1017 }; 1018 1019 static struct pci_device_id 1020 nouveau_drm_pci_table[] = { 1021 { 1022 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1023 .class = PCI_BASE_CLASS_DISPLAY << 16, 1024 .class_mask = 0xff << 16, 1025 }, 1026 { 1027 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1028 .class = PCI_BASE_CLASS_DISPLAY << 16, 1029 .class_mask = 0xff << 16, 1030 }, 1031 {} 1032 }; 1033 1034 static void nouveau_display_options(void) 1035 { 1036 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1037 1038 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1039 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1040 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1041 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1042 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1043 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1044 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1045 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1046 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1047 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1048 DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz); 1049 } 1050 1051 static const struct dev_pm_ops nouveau_pm_ops = { 1052 .suspend = nouveau_pmops_suspend, 1053 .resume = nouveau_pmops_resume, 1054 .freeze = nouveau_pmops_freeze, 1055 .thaw = nouveau_pmops_thaw, 1056 .poweroff = nouveau_pmops_freeze, 1057 .restore = nouveau_pmops_resume, 1058 .runtime_suspend = nouveau_pmops_runtime_suspend, 1059 .runtime_resume = nouveau_pmops_runtime_resume, 1060 .runtime_idle = nouveau_pmops_runtime_idle, 1061 }; 1062 1063 static struct pci_driver 1064 nouveau_drm_pci_driver = { 1065 .name = "nouveau", 1066 .id_table = nouveau_drm_pci_table, 1067 .probe = nouveau_drm_probe, 1068 .remove = nouveau_drm_remove, 1069 .driver.pm = &nouveau_pm_ops, 1070 }; 1071 1072 struct drm_device * 1073 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1074 struct platform_device *pdev, 1075 struct nvkm_device **pdevice) 1076 { 1077 struct drm_device *drm; 1078 int err; 1079 1080 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1081 true, true, ~0ULL, pdevice); 1082 if (err) 1083 goto err_free; 1084 1085 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1086 if (IS_ERR(drm)) { 1087 err = PTR_ERR(drm); 1088 goto err_free; 1089 } 1090 1091 platform_set_drvdata(pdev, drm); 1092 1093 return drm; 1094 1095 err_free: 1096 nvkm_device_del(pdevice); 1097 1098 return ERR_PTR(err); 1099 } 1100 1101 static int __init 1102 nouveau_drm_init(void) 1103 { 1104 driver_pci = driver_stub; 1105 driver_pci.set_busid = drm_pci_set_busid; 1106 driver_platform = driver_stub; 1107 1108 nouveau_display_options(); 1109 1110 if (nouveau_modeset == -1) { 1111 if (vgacon_text_force()) 1112 nouveau_modeset = 0; 1113 } 1114 1115 if (!nouveau_modeset) 1116 return 0; 1117 1118 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1119 platform_driver_register(&nouveau_platform_driver); 1120 #endif 1121 1122 nouveau_register_dsm_handler(); 1123 nouveau_backlight_ctor(); 1124 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1125 } 1126 1127 static void __exit 1128 nouveau_drm_exit(void) 1129 { 1130 if (!nouveau_modeset) 1131 return; 1132 1133 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1134 nouveau_backlight_dtor(); 1135 nouveau_unregister_dsm_handler(); 1136 1137 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1138 platform_driver_unregister(&nouveau_platform_driver); 1139 #endif 1140 } 1141 1142 module_init(nouveau_drm_init); 1143 module_exit(nouveau_drm_exit); 1144 1145 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1146 MODULE_AUTHOR(DRIVER_AUTHOR); 1147 MODULE_DESCRIPTION(DRIVER_DESC); 1148 MODULE_LICENSE("GPL and additional rights"); 1149