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_led.h" 51 #include "nouveau_hwmon.h" 52 #include "nouveau_acpi.h" 53 #include "nouveau_bios.h" 54 #include "nouveau_ioctl.h" 55 #include "nouveau_abi16.h" 56 #include "nouveau_fbcon.h" 57 #include "nouveau_fence.h" 58 #include "nouveau_debugfs.h" 59 #include "nouveau_usif.h" 60 #include "nouveau_connector.h" 61 #include "nouveau_platform.h" 62 63 MODULE_PARM_DESC(config, "option string to pass to driver core"); 64 static char *nouveau_config; 65 module_param_named(config, nouveau_config, charp, 0400); 66 67 MODULE_PARM_DESC(debug, "debug string to pass to driver core"); 68 static char *nouveau_debug; 69 module_param_named(debug, nouveau_debug, charp, 0400); 70 71 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration"); 72 static int nouveau_noaccel = 0; 73 module_param_named(noaccel, nouveau_noaccel, int, 0400); 74 75 MODULE_PARM_DESC(modeset, "enable driver (default: auto, " 76 "0 = disabled, 1 = enabled, 2 = headless)"); 77 int nouveau_modeset = -1; 78 module_param_named(modeset, nouveau_modeset, int, 0400); 79 80 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)"); 81 int nouveau_runtime_pm = -1; 82 module_param_named(runpm, nouveau_runtime_pm, int, 0400); 83 84 static struct drm_driver driver_stub; 85 static struct drm_driver driver_pci; 86 static struct drm_driver driver_platform; 87 88 static u64 89 nouveau_pci_name(struct pci_dev *pdev) 90 { 91 u64 name = (u64)pci_domain_nr(pdev->bus) << 32; 92 name |= pdev->bus->number << 16; 93 name |= PCI_SLOT(pdev->devfn) << 8; 94 return name | PCI_FUNC(pdev->devfn); 95 } 96 97 static u64 98 nouveau_platform_name(struct platform_device *platformdev) 99 { 100 return platformdev->id; 101 } 102 103 static u64 104 nouveau_name(struct drm_device *dev) 105 { 106 if (dev->pdev) 107 return nouveau_pci_name(dev->pdev); 108 else 109 return nouveau_platform_name(dev->platformdev); 110 } 111 112 static int 113 nouveau_cli_create(struct drm_device *dev, const char *sname, 114 int size, void **pcli) 115 { 116 struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL); 117 int ret; 118 if (cli) { 119 snprintf(cli->name, sizeof(cli->name), "%s", sname); 120 cli->dev = dev; 121 122 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev), 123 nouveau_config, nouveau_debug, 124 &cli->base); 125 if (ret == 0) { 126 mutex_init(&cli->mutex); 127 usif_client_init(cli); 128 } 129 return ret; 130 } 131 return -ENOMEM; 132 } 133 134 static void 135 nouveau_cli_destroy(struct nouveau_cli *cli) 136 { 137 nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL); 138 nvif_client_fini(&cli->base); 139 usif_client_fini(cli); 140 kfree(cli); 141 } 142 143 static void 144 nouveau_accel_fini(struct nouveau_drm *drm) 145 { 146 nouveau_channel_idle(drm->channel); 147 nvif_object_fini(&drm->ntfy); 148 nvkm_gpuobj_del(&drm->notify); 149 nvif_notify_fini(&drm->flip); 150 nvif_object_fini(&drm->nvsw); 151 nouveau_channel_del(&drm->channel); 152 153 nouveau_channel_idle(drm->cechan); 154 nvif_object_fini(&drm->ttm.copy); 155 nouveau_channel_del(&drm->cechan); 156 157 if (drm->fence) 158 nouveau_fence(drm)->dtor(drm); 159 } 160 161 static void 162 nouveau_accel_init(struct nouveau_drm *drm) 163 { 164 struct nvif_device *device = &drm->device; 165 struct nvif_sclass *sclass; 166 u32 arg0, arg1; 167 int ret, i, n; 168 169 if (nouveau_noaccel) 170 return; 171 172 /* initialise synchronisation routines */ 173 /*XXX: this is crap, but the fence/channel stuff is a little 174 * backwards in some places. this will be fixed. 175 */ 176 ret = n = nvif_object_sclass_get(&device->object, &sclass); 177 if (ret < 0) 178 return; 179 180 for (ret = -ENOSYS, i = 0; i < n; i++) { 181 switch (sclass[i].oclass) { 182 case NV03_CHANNEL_DMA: 183 ret = nv04_fence_create(drm); 184 break; 185 case NV10_CHANNEL_DMA: 186 ret = nv10_fence_create(drm); 187 break; 188 case NV17_CHANNEL_DMA: 189 case NV40_CHANNEL_DMA: 190 ret = nv17_fence_create(drm); 191 break; 192 case NV50_CHANNEL_GPFIFO: 193 ret = nv50_fence_create(drm); 194 break; 195 case G82_CHANNEL_GPFIFO: 196 ret = nv84_fence_create(drm); 197 break; 198 case FERMI_CHANNEL_GPFIFO: 199 case KEPLER_CHANNEL_GPFIFO_A: 200 case KEPLER_CHANNEL_GPFIFO_B: 201 case MAXWELL_CHANNEL_GPFIFO_A: 202 case PASCAL_CHANNEL_GPFIFO_A: 203 ret = nvc0_fence_create(drm); 204 break; 205 default: 206 break; 207 } 208 } 209 210 nvif_object_sclass_put(&sclass); 211 if (ret) { 212 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret); 213 nouveau_accel_fini(drm); 214 return; 215 } 216 217 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) { 218 ret = nouveau_channel_new(drm, &drm->device, 219 NVA06F_V0_ENGINE_CE0 | 220 NVA06F_V0_ENGINE_CE1, 221 0, &drm->cechan); 222 if (ret) 223 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 224 225 arg0 = NVA06F_V0_ENGINE_GR; 226 arg1 = 1; 227 } else 228 if (device->info.chipset >= 0xa3 && 229 device->info.chipset != 0xaa && 230 device->info.chipset != 0xac) { 231 ret = nouveau_channel_new(drm, &drm->device, 232 NvDmaFB, NvDmaTT, &drm->cechan); 233 if (ret) 234 NV_ERROR(drm, "failed to create ce channel, %d\n", ret); 235 236 arg0 = NvDmaFB; 237 arg1 = NvDmaTT; 238 } else { 239 arg0 = NvDmaFB; 240 arg1 = NvDmaTT; 241 } 242 243 ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel); 244 if (ret) { 245 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret); 246 nouveau_accel_fini(drm); 247 return; 248 } 249 250 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW, 251 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw); 252 if (ret == 0) { 253 ret = RING_SPACE(drm->channel, 2); 254 if (ret == 0) { 255 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 256 BEGIN_NV04(drm->channel, NvSubSw, 0, 1); 257 OUT_RING (drm->channel, NVDRM_NVSW); 258 } else 259 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) { 260 BEGIN_NVC0(drm->channel, FermiSw, 0, 1); 261 OUT_RING (drm->channel, 0x001f0000); 262 } 263 } 264 265 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete, 266 false, NV04_NVSW_NTFY_UEVENT, 267 NULL, 0, 0, &drm->flip); 268 if (ret == 0) 269 ret = nvif_notify_get(&drm->flip); 270 if (ret) { 271 nouveau_accel_fini(drm); 272 return; 273 } 274 } 275 276 if (ret) { 277 NV_ERROR(drm, "failed to allocate software object, %d\n", ret); 278 nouveau_accel_fini(drm); 279 return; 280 } 281 282 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) { 283 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false, 284 NULL, &drm->notify); 285 if (ret) { 286 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret); 287 nouveau_accel_fini(drm); 288 return; 289 } 290 291 ret = nvif_object_init(&drm->channel->user, NvNotify0, 292 NV_DMA_IN_MEMORY, 293 &(struct nv_dma_v0) { 294 .target = NV_DMA_V0_TARGET_VRAM, 295 .access = NV_DMA_V0_ACCESS_RDWR, 296 .start = drm->notify->addr, 297 .limit = drm->notify->addr + 31 298 }, sizeof(struct nv_dma_v0), 299 &drm->ntfy); 300 if (ret) { 301 nouveau_accel_fini(drm); 302 return; 303 } 304 } 305 306 307 nouveau_bo_move_init(drm); 308 } 309 310 static int nouveau_drm_probe(struct pci_dev *pdev, 311 const struct pci_device_id *pent) 312 { 313 struct nvkm_device *device; 314 struct apertures_struct *aper; 315 bool boot = false; 316 int ret; 317 318 if (vga_switcheroo_client_probe_defer(pdev)) 319 return -EPROBE_DEFER; 320 321 /* We need to check that the chipset is supported before booting 322 * fbdev off the hardware, as there's no way to put it back. 323 */ 324 ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device); 325 if (ret) 326 return ret; 327 328 nvkm_device_del(&device); 329 330 /* Remove conflicting drivers (vesafb, efifb etc). */ 331 aper = alloc_apertures(3); 332 if (!aper) 333 return -ENOMEM; 334 335 aper->ranges[0].base = pci_resource_start(pdev, 1); 336 aper->ranges[0].size = pci_resource_len(pdev, 1); 337 aper->count = 1; 338 339 if (pci_resource_len(pdev, 2)) { 340 aper->ranges[aper->count].base = pci_resource_start(pdev, 2); 341 aper->ranges[aper->count].size = pci_resource_len(pdev, 2); 342 aper->count++; 343 } 344 345 if (pci_resource_len(pdev, 3)) { 346 aper->ranges[aper->count].base = pci_resource_start(pdev, 3); 347 aper->ranges[aper->count].size = pci_resource_len(pdev, 3); 348 aper->count++; 349 } 350 351 #ifdef CONFIG_X86 352 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 353 #endif 354 if (nouveau_modeset != 2) 355 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot); 356 kfree(aper); 357 358 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug, 359 true, true, ~0ULL, &device); 360 if (ret) 361 return ret; 362 363 pci_set_master(pdev); 364 365 ret = drm_get_pci_dev(pdev, pent, &driver_pci); 366 if (ret) { 367 nvkm_device_del(&device); 368 return ret; 369 } 370 371 return 0; 372 } 373 374 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403 375 376 static void 377 nouveau_get_hdmi_dev(struct nouveau_drm *drm) 378 { 379 struct pci_dev *pdev = drm->dev->pdev; 380 381 if (!pdev) { 382 NV_DEBUG(drm, "not a PCI device; no HDMI\n"); 383 drm->hdmi_device = NULL; 384 return; 385 } 386 387 /* subfunction one is a hdmi audio device? */ 388 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, 389 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); 390 391 if (!drm->hdmi_device) { 392 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1); 393 return; 394 } 395 396 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) { 397 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class); 398 pci_dev_put(drm->hdmi_device); 399 drm->hdmi_device = NULL; 400 return; 401 } 402 } 403 404 static int 405 nouveau_drm_load(struct drm_device *dev, unsigned long flags) 406 { 407 struct nouveau_drm *drm; 408 int ret; 409 410 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm); 411 if (ret) 412 return ret; 413 414 dev->dev_private = drm; 415 drm->dev = dev; 416 nvxx_client(&drm->client.base)->debug = 417 nvkm_dbgopt(nouveau_debug, "DRM"); 418 419 INIT_LIST_HEAD(&drm->clients); 420 spin_lock_init(&drm->tile.lock); 421 422 nouveau_get_hdmi_dev(drm); 423 424 ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE, 425 &(struct nv_device_v0) { 426 .device = ~0, 427 }, sizeof(struct nv_device_v0), 428 &drm->device); 429 if (ret) 430 goto fail_device; 431 432 dev->irq_enabled = true; 433 434 /* workaround an odd issue on nvc1 by disabling the device's 435 * nosnoop capability. hopefully won't cause issues until a 436 * better fix is found - assuming there is one... 437 */ 438 if (drm->device.info.chipset == 0xc1) 439 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000); 440 441 nouveau_vga_init(drm); 442 443 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 444 if (!nvxx_device(&drm->device)->mmu) { 445 ret = -ENOSYS; 446 goto fail_device; 447 } 448 449 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 450 0x1000, NULL, &drm->client.vm); 451 if (ret) 452 goto fail_device; 453 454 nvxx_client(&drm->client.base)->vm = drm->client.vm; 455 } 456 457 ret = nouveau_ttm_init(drm); 458 if (ret) 459 goto fail_ttm; 460 461 ret = nouveau_bios_init(dev); 462 if (ret) 463 goto fail_bios; 464 465 ret = nouveau_display_create(dev); 466 if (ret) 467 goto fail_dispctor; 468 469 if (dev->mode_config.num_crtc) { 470 ret = nouveau_display_init(dev); 471 if (ret) 472 goto fail_dispinit; 473 } 474 475 nouveau_debugfs_init(drm); 476 nouveau_hwmon_init(dev); 477 nouveau_accel_init(drm); 478 nouveau_fbcon_init(dev); 479 nouveau_led_init(dev); 480 481 if (nouveau_runtime_pm != 0) { 482 pm_runtime_use_autosuspend(dev->dev); 483 pm_runtime_set_autosuspend_delay(dev->dev, 5000); 484 pm_runtime_set_active(dev->dev); 485 pm_runtime_allow(dev->dev); 486 pm_runtime_mark_last_busy(dev->dev); 487 pm_runtime_put(dev->dev); 488 } 489 return 0; 490 491 fail_dispinit: 492 nouveau_display_destroy(dev); 493 fail_dispctor: 494 nouveau_bios_takedown(dev); 495 fail_bios: 496 nouveau_ttm_fini(drm); 497 fail_ttm: 498 nouveau_vga_fini(drm); 499 fail_device: 500 nvif_device_fini(&drm->device); 501 nouveau_cli_destroy(&drm->client); 502 return ret; 503 } 504 505 static int 506 nouveau_drm_unload(struct drm_device *dev) 507 { 508 struct nouveau_drm *drm = nouveau_drm(dev); 509 510 if (nouveau_runtime_pm != 0) { 511 pm_runtime_get_sync(dev->dev); 512 pm_runtime_forbid(dev->dev); 513 } 514 515 nouveau_led_fini(dev); 516 nouveau_fbcon_fini(dev); 517 nouveau_accel_fini(drm); 518 nouveau_hwmon_fini(dev); 519 nouveau_debugfs_fini(drm); 520 521 if (dev->mode_config.num_crtc) 522 nouveau_display_fini(dev, false); 523 nouveau_display_destroy(dev); 524 525 nouveau_bios_takedown(dev); 526 527 nouveau_ttm_fini(drm); 528 nouveau_vga_fini(drm); 529 530 nvif_device_fini(&drm->device); 531 if (drm->hdmi_device) 532 pci_dev_put(drm->hdmi_device); 533 nouveau_cli_destroy(&drm->client); 534 return 0; 535 } 536 537 void 538 nouveau_drm_device_remove(struct drm_device *dev) 539 { 540 struct nouveau_drm *drm = nouveau_drm(dev); 541 struct nvkm_client *client; 542 struct nvkm_device *device; 543 544 dev->irq_enabled = false; 545 client = nvxx_client(&drm->client.base); 546 device = nvkm_device_find(client->device); 547 drm_put_dev(dev); 548 549 nvkm_device_del(&device); 550 } 551 552 static void 553 nouveau_drm_remove(struct pci_dev *pdev) 554 { 555 struct drm_device *dev = pci_get_drvdata(pdev); 556 557 nouveau_drm_device_remove(dev); 558 } 559 560 static int 561 nouveau_do_suspend(struct drm_device *dev, bool runtime) 562 { 563 struct nouveau_drm *drm = nouveau_drm(dev); 564 struct nouveau_cli *cli; 565 int ret; 566 567 nouveau_led_suspend(dev); 568 569 if (dev->mode_config.num_crtc) { 570 NV_INFO(drm, "suspending console...\n"); 571 nouveau_fbcon_set_suspend(dev, 1); 572 NV_INFO(drm, "suspending display...\n"); 573 ret = nouveau_display_suspend(dev, runtime); 574 if (ret) 575 return ret; 576 } 577 578 NV_INFO(drm, "evicting buffers...\n"); 579 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM); 580 581 NV_INFO(drm, "waiting for kernel channels to go idle...\n"); 582 if (drm->cechan) { 583 ret = nouveau_channel_idle(drm->cechan); 584 if (ret) 585 goto fail_display; 586 } 587 588 if (drm->channel) { 589 ret = nouveau_channel_idle(drm->channel); 590 if (ret) 591 goto fail_display; 592 } 593 594 NV_INFO(drm, "suspending client object trees...\n"); 595 if (drm->fence && nouveau_fence(drm)->suspend) { 596 if (!nouveau_fence(drm)->suspend(drm)) { 597 ret = -ENOMEM; 598 goto fail_display; 599 } 600 } 601 602 list_for_each_entry(cli, &drm->clients, head) { 603 ret = nvif_client_suspend(&cli->base); 604 if (ret) 605 goto fail_client; 606 } 607 608 NV_INFO(drm, "suspending kernel object tree...\n"); 609 ret = nvif_client_suspend(&drm->client.base); 610 if (ret) 611 goto fail_client; 612 613 return 0; 614 615 fail_client: 616 list_for_each_entry_continue_reverse(cli, &drm->clients, head) { 617 nvif_client_resume(&cli->base); 618 } 619 620 if (drm->fence && nouveau_fence(drm)->resume) 621 nouveau_fence(drm)->resume(drm); 622 623 fail_display: 624 if (dev->mode_config.num_crtc) { 625 NV_INFO(drm, "resuming display...\n"); 626 nouveau_display_resume(dev, runtime); 627 } 628 return ret; 629 } 630 631 static int 632 nouveau_do_resume(struct drm_device *dev, bool runtime) 633 { 634 struct nouveau_drm *drm = nouveau_drm(dev); 635 struct nouveau_cli *cli; 636 637 NV_INFO(drm, "resuming kernel object tree...\n"); 638 nvif_client_resume(&drm->client.base); 639 640 NV_INFO(drm, "resuming client object trees...\n"); 641 if (drm->fence && nouveau_fence(drm)->resume) 642 nouveau_fence(drm)->resume(drm); 643 644 list_for_each_entry(cli, &drm->clients, head) { 645 nvif_client_resume(&cli->base); 646 } 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 return nouveau_do_resume(drm_dev, false); 703 } 704 705 static int 706 nouveau_pmops_freeze(struct device *dev) 707 { 708 struct pci_dev *pdev = to_pci_dev(dev); 709 struct drm_device *drm_dev = pci_get_drvdata(pdev); 710 return nouveau_do_suspend(drm_dev, false); 711 } 712 713 static int 714 nouveau_pmops_thaw(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_resume(drm_dev, false); 719 } 720 721 static int 722 nouveau_pmops_runtime_suspend(struct device *dev) 723 { 724 struct pci_dev *pdev = to_pci_dev(dev); 725 struct drm_device *drm_dev = pci_get_drvdata(pdev); 726 int ret; 727 728 if (nouveau_runtime_pm == 0) { 729 pm_runtime_forbid(dev); 730 return -EBUSY; 731 } 732 733 /* are we optimus enabled? */ 734 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 735 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 736 pm_runtime_forbid(dev); 737 return -EBUSY; 738 } 739 740 drm_kms_helper_poll_disable(drm_dev); 741 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); 742 nouveau_switcheroo_optimus_dsm(); 743 ret = nouveau_do_suspend(drm_dev, true); 744 pci_save_state(pdev); 745 pci_disable_device(pdev); 746 pci_ignore_hotplug(pdev); 747 pci_set_power_state(pdev, PCI_D3cold); 748 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; 749 return ret; 750 } 751 752 static int 753 nouveau_pmops_runtime_resume(struct device *dev) 754 { 755 struct pci_dev *pdev = to_pci_dev(dev); 756 struct drm_device *drm_dev = pci_get_drvdata(pdev); 757 struct nvif_device *device = &nouveau_drm(drm_dev)->device; 758 int ret; 759 760 if (nouveau_runtime_pm == 0) 761 return -EINVAL; 762 763 pci_set_power_state(pdev, PCI_D0); 764 pci_restore_state(pdev); 765 ret = pci_enable_device(pdev); 766 if (ret) 767 return ret; 768 pci_set_master(pdev); 769 770 ret = nouveau_do_resume(drm_dev, true); 771 drm_kms_helper_poll_enable(drm_dev); 772 /* do magic */ 773 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25)); 774 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); 775 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; 776 return ret; 777 } 778 779 static int 780 nouveau_pmops_runtime_idle(struct device *dev) 781 { 782 struct pci_dev *pdev = to_pci_dev(dev); 783 struct drm_device *drm_dev = pci_get_drvdata(pdev); 784 struct nouveau_drm *drm = nouveau_drm(drm_dev); 785 struct drm_crtc *crtc; 786 787 if (nouveau_runtime_pm == 0) { 788 pm_runtime_forbid(dev); 789 return -EBUSY; 790 } 791 792 /* are we optimus enabled? */ 793 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) { 794 DRM_DEBUG_DRIVER("failing to power off - not optimus\n"); 795 pm_runtime_forbid(dev); 796 return -EBUSY; 797 } 798 799 /* if we have a hdmi audio device - make sure it has a driver loaded */ 800 if (drm->hdmi_device) { 801 if (!drm->hdmi_device->driver) { 802 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n"); 803 pm_runtime_mark_last_busy(dev); 804 return -EBUSY; 805 } 806 } 807 808 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) { 809 if (crtc->enabled) { 810 DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); 811 return -EBUSY; 812 } 813 } 814 pm_runtime_mark_last_busy(dev); 815 pm_runtime_autosuspend(dev); 816 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ 817 return 1; 818 } 819 820 static int 821 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv) 822 { 823 struct nouveau_drm *drm = nouveau_drm(dev); 824 struct nouveau_cli *cli; 825 char name[32], tmpname[TASK_COMM_LEN]; 826 int ret; 827 828 /* need to bring up power immediately if opening device */ 829 ret = pm_runtime_get_sync(dev->dev); 830 if (ret < 0 && ret != -EACCES) 831 return ret; 832 833 get_task_comm(tmpname, current); 834 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid)); 835 836 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli); 837 838 if (ret) 839 goto out_suspend; 840 841 cli->base.super = false; 842 843 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 844 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40), 845 0x1000, NULL, &cli->vm); 846 if (ret) { 847 nouveau_cli_destroy(cli); 848 goto out_suspend; 849 } 850 851 nvxx_client(&cli->base)->vm = cli->vm; 852 } 853 854 fpriv->driver_priv = cli; 855 856 mutex_lock(&drm->client.mutex); 857 list_add(&cli->head, &drm->clients); 858 mutex_unlock(&drm->client.mutex); 859 860 out_suspend: 861 pm_runtime_mark_last_busy(dev->dev); 862 pm_runtime_put_autosuspend(dev->dev); 863 864 return ret; 865 } 866 867 static void 868 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv) 869 { 870 struct nouveau_cli *cli = nouveau_cli(fpriv); 871 struct nouveau_drm *drm = nouveau_drm(dev); 872 873 pm_runtime_get_sync(dev->dev); 874 875 mutex_lock(&cli->mutex); 876 if (cli->abi16) 877 nouveau_abi16_fini(cli->abi16); 878 mutex_unlock(&cli->mutex); 879 880 mutex_lock(&drm->client.mutex); 881 list_del(&cli->head); 882 mutex_unlock(&drm->client.mutex); 883 884 } 885 886 static void 887 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv) 888 { 889 struct nouveau_cli *cli = nouveau_cli(fpriv); 890 nouveau_cli_destroy(cli); 891 pm_runtime_mark_last_busy(dev->dev); 892 pm_runtime_put_autosuspend(dev->dev); 893 } 894 895 static const struct drm_ioctl_desc 896 nouveau_ioctls[] = { 897 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW), 898 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 899 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 900 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW), 901 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 902 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW), 903 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW), 904 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW), 905 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW), 906 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), 907 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), 908 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW), 909 }; 910 911 long 912 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 913 { 914 struct drm_file *filp = file->private_data; 915 struct drm_device *dev = filp->minor->dev; 916 long ret; 917 918 ret = pm_runtime_get_sync(dev->dev); 919 if (ret < 0 && ret != -EACCES) 920 return ret; 921 922 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) { 923 case DRM_NOUVEAU_NVIF: 924 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd)); 925 break; 926 default: 927 ret = drm_ioctl(file, cmd, arg); 928 break; 929 } 930 931 pm_runtime_mark_last_busy(dev->dev); 932 pm_runtime_put_autosuspend(dev->dev); 933 return ret; 934 } 935 936 static const struct file_operations 937 nouveau_driver_fops = { 938 .owner = THIS_MODULE, 939 .open = drm_open, 940 .release = drm_release, 941 .unlocked_ioctl = nouveau_drm_ioctl, 942 .mmap = nouveau_ttm_mmap, 943 .poll = drm_poll, 944 .read = drm_read, 945 #if defined(CONFIG_COMPAT) 946 .compat_ioctl = nouveau_compat_ioctl, 947 #endif 948 .llseek = noop_llseek, 949 }; 950 951 static struct drm_driver 952 driver_stub = { 953 .driver_features = 954 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | 955 DRIVER_KMS_LEGACY_CONTEXT, 956 957 .load = nouveau_drm_load, 958 .unload = nouveau_drm_unload, 959 .open = nouveau_drm_open, 960 .preclose = nouveau_drm_preclose, 961 .postclose = nouveau_drm_postclose, 962 .lastclose = nouveau_vga_lastclose, 963 964 #if defined(CONFIG_DEBUG_FS) 965 .debugfs_init = nouveau_drm_debugfs_init, 966 .debugfs_cleanup = nouveau_drm_debugfs_cleanup, 967 #endif 968 969 .get_vblank_counter = drm_vblank_no_hw_counter, 970 .enable_vblank = nouveau_display_vblank_enable, 971 .disable_vblank = nouveau_display_vblank_disable, 972 .get_scanout_position = nouveau_display_scanoutpos, 973 .get_vblank_timestamp = nouveau_display_vblstamp, 974 975 .ioctls = nouveau_ioctls, 976 .num_ioctls = ARRAY_SIZE(nouveau_ioctls), 977 .fops = &nouveau_driver_fops, 978 979 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 980 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 981 .gem_prime_export = drm_gem_prime_export, 982 .gem_prime_import = drm_gem_prime_import, 983 .gem_prime_pin = nouveau_gem_prime_pin, 984 .gem_prime_res_obj = nouveau_gem_prime_res_obj, 985 .gem_prime_unpin = nouveau_gem_prime_unpin, 986 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table, 987 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table, 988 .gem_prime_vmap = nouveau_gem_prime_vmap, 989 .gem_prime_vunmap = nouveau_gem_prime_vunmap, 990 991 .gem_free_object_unlocked = nouveau_gem_object_del, 992 .gem_open_object = nouveau_gem_object_open, 993 .gem_close_object = nouveau_gem_object_close, 994 995 .dumb_create = nouveau_display_dumb_create, 996 .dumb_map_offset = nouveau_display_dumb_map_offset, 997 .dumb_destroy = drm_gem_dumb_destroy, 998 999 .name = DRIVER_NAME, 1000 .desc = DRIVER_DESC, 1001 #ifdef GIT_REVISION 1002 .date = GIT_REVISION, 1003 #else 1004 .date = DRIVER_DATE, 1005 #endif 1006 .major = DRIVER_MAJOR, 1007 .minor = DRIVER_MINOR, 1008 .patchlevel = DRIVER_PATCHLEVEL, 1009 }; 1010 1011 static struct pci_device_id 1012 nouveau_drm_pci_table[] = { 1013 { 1014 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), 1015 .class = PCI_BASE_CLASS_DISPLAY << 16, 1016 .class_mask = 0xff << 16, 1017 }, 1018 { 1019 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID), 1020 .class = PCI_BASE_CLASS_DISPLAY << 16, 1021 .class_mask = 0xff << 16, 1022 }, 1023 {} 1024 }; 1025 1026 static void nouveau_display_options(void) 1027 { 1028 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n"); 1029 1030 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable); 1031 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid); 1032 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink); 1033 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel); 1034 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config); 1035 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug); 1036 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel); 1037 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset); 1038 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm); 1039 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf); 1040 DRM_DEBUG_DRIVER("... hdmimhz : %d\n", nouveau_hdmimhz); 1041 } 1042 1043 static const struct dev_pm_ops nouveau_pm_ops = { 1044 .suspend = nouveau_pmops_suspend, 1045 .resume = nouveau_pmops_resume, 1046 .freeze = nouveau_pmops_freeze, 1047 .thaw = nouveau_pmops_thaw, 1048 .poweroff = nouveau_pmops_freeze, 1049 .restore = nouveau_pmops_resume, 1050 .runtime_suspend = nouveau_pmops_runtime_suspend, 1051 .runtime_resume = nouveau_pmops_runtime_resume, 1052 .runtime_idle = nouveau_pmops_runtime_idle, 1053 }; 1054 1055 static struct pci_driver 1056 nouveau_drm_pci_driver = { 1057 .name = "nouveau", 1058 .id_table = nouveau_drm_pci_table, 1059 .probe = nouveau_drm_probe, 1060 .remove = nouveau_drm_remove, 1061 .driver.pm = &nouveau_pm_ops, 1062 }; 1063 1064 struct drm_device * 1065 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func, 1066 struct platform_device *pdev, 1067 struct nvkm_device **pdevice) 1068 { 1069 struct drm_device *drm; 1070 int err; 1071 1072 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug, 1073 true, true, ~0ULL, pdevice); 1074 if (err) 1075 goto err_free; 1076 1077 drm = drm_dev_alloc(&driver_platform, &pdev->dev); 1078 if (IS_ERR(drm)) { 1079 err = PTR_ERR(drm); 1080 goto err_free; 1081 } 1082 1083 drm->platformdev = pdev; 1084 platform_set_drvdata(pdev, drm); 1085 1086 return drm; 1087 1088 err_free: 1089 nvkm_device_del(pdevice); 1090 1091 return ERR_PTR(err); 1092 } 1093 1094 static int __init 1095 nouveau_drm_init(void) 1096 { 1097 driver_pci = driver_stub; 1098 driver_pci.set_busid = drm_pci_set_busid; 1099 driver_platform = driver_stub; 1100 1101 nouveau_display_options(); 1102 1103 if (nouveau_modeset == -1) { 1104 if (vgacon_text_force()) 1105 nouveau_modeset = 0; 1106 } 1107 1108 if (!nouveau_modeset) 1109 return 0; 1110 1111 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1112 platform_driver_register(&nouveau_platform_driver); 1113 #endif 1114 1115 nouveau_register_dsm_handler(); 1116 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver); 1117 } 1118 1119 static void __exit 1120 nouveau_drm_exit(void) 1121 { 1122 if (!nouveau_modeset) 1123 return; 1124 1125 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver); 1126 nouveau_unregister_dsm_handler(); 1127 1128 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER 1129 platform_driver_unregister(&nouveau_platform_driver); 1130 #endif 1131 } 1132 1133 module_init(nouveau_drm_init); 1134 module_exit(nouveau_drm_exit); 1135 1136 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table); 1137 MODULE_AUTHOR(DRIVER_AUTHOR); 1138 MODULE_DESCRIPTION(DRIVER_DESC); 1139 MODULE_LICENSE("GPL and additional rights"); 1140