drivers/gpu/drm/nouveau/nouveau_drm.c

   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 #include <nvif/fifo.h>
  42 #include <nvif/user.h>
  43
  44 #include <nvif/class.h>
  45 #include <nvif/cl0002.h>
  46 #include <nvif/cla06f.h>
  47
  48 #include "nouveau_drv.h"
  49 #include "nouveau_dma.h"
  50 #include "nouveau_ttm.h"
  51 #include "nouveau_gem.h"
  52 #include "nouveau_vga.h"
  53 #include "nouveau_led.h"
  54 #include "nouveau_hwmon.h"
  55 #include "nouveau_acpi.h"
  56 #include "nouveau_bios.h"
  57 #include "nouveau_ioctl.h"
  58 #include "nouveau_abi16.h"
  59 #include "nouveau_fbcon.h"
  60 #include "nouveau_fence.h"
  61 #include "nouveau_debugfs.h"
  62 #include "nouveau_usif.h"
  63 #include "nouveau_connector.h"
  64 #include "nouveau_platform.h"
  65 #include "nouveau_svm.h"
  66 #include "nouveau_dmem.h"
  67
  68 MODULE_PARM_DESC(config, "option string to pass to driver core");
  69 static char *nouveau_config;
  70 module_param_named(config, nouveau_config, charp, 0400);
  71
  72 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  73 static char *nouveau_debug;
  74 module_param_named(debug, nouveau_debug, charp, 0400);
  75
  76 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  77 static int nouveau_noaccel = 0;
  78 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  79
  80 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  81                           "0 = disabled, 1 = enabled, 2 = headless)");
  82 int nouveau_modeset = -1;
  83 module_param_named(modeset, nouveau_modeset, int, 0400);
  84
  85 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)");
  86 static int nouveau_atomic = 0;
  87 module_param_named(atomic, nouveau_atomic, int, 0400);
  88
  89 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  90 static int nouveau_runtime_pm = -1;
  91 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  92
  93 static struct drm_driver driver_stub;
  94 static struct drm_driver driver_pci;
  95 static struct drm_driver driver_platform;
  96
  97 static u64
  98 nouveau_pci_name(struct pci_dev *pdev)
  99 {
 100         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 101         name |= pdev->bus->number << 16;
 102         name |= PCI_SLOT(pdev->devfn) << 8;
 103         return name | PCI_FUNC(pdev->devfn);
 104 }
 105
 106 static u64
 107 nouveau_platform_name(struct platform_device *platformdev)
 108 {
 109         return platformdev->id;
 110 }
 111
 112 static u64
 113 nouveau_name(struct drm_device *dev)
 114 {
 115         if (dev->pdev)
 116                 return nouveau_pci_name(dev->pdev);
 117         else
 118                 return nouveau_platform_name(to_platform_device(dev->dev));
 119 }
 120
 121 static inline bool
 122 nouveau_cli_work_ready(struct dma_fence *fence)
 123 {
 124         if (!dma_fence_is_signaled(fence))
 125                 return false;
 126         dma_fence_put(fence);
 127         return true;
 128 }
 129
 130 static void
 131 nouveau_cli_work(struct work_struct *w)
 132 {
 133         struct nouveau_cli *cli = container_of(w, typeof(*cli), work);
 134         struct nouveau_cli_work *work, *wtmp;
 135         mutex_lock(&cli->lock);
 136         list_for_each_entry_safe(work, wtmp, &cli->worker, head) {
 137                 if (!work->fence || nouveau_cli_work_ready(work->fence)) {
 138                         list_del(&work->head);
 139                         work->func(work);
 140                 }
 141         }
 142         mutex_unlock(&cli->lock);
 143 }
 144
 145 static void
 146 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb)
 147 {
 148         struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb);
 149         schedule_work(&work->cli->work);
 150 }
 151
 152 void
 153 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence,
 154                        struct nouveau_cli_work *work)
 155 {
 156         work->fence = dma_fence_get(fence);
 157         work->cli = cli;
 158         mutex_lock(&cli->lock);
 159         list_add_tail(&work->head, &cli->worker);
 160         if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence))
 161                 nouveau_cli_work_fence(fence, &work->cb);
 162         mutex_unlock(&cli->lock);
 163 }
 164
 165 static void
 166 nouveau_cli_fini(struct nouveau_cli *cli)
 167 {
 168         /* All our channels are dead now, which means all the fences they
 169          * own are signalled, and all callback functions have been called.
 170          *
 171          * So, after flushing the workqueue, there should be nothing left.
 172          */
 173         flush_work(&cli->work);
 174         WARN_ON(!list_empty(&cli->worker));
 175
 176         usif_client_fini(cli);
 177         nouveau_vmm_fini(&cli->svm);
 178         nouveau_vmm_fini(&cli->vmm);
 179         nvif_mmu_fini(&cli->mmu);
 180         nvif_device_fini(&cli->device);
 181         mutex_lock(&cli->drm->master.lock);
 182         nvif_client_fini(&cli->base);
 183         mutex_unlock(&cli->drm->master.lock);
 184 }
 185
 186 static int
 187 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 188                  struct nouveau_cli *cli)
 189 {
 190         static const struct nvif_mclass
 191         mems[] = {
 192                 { NVIF_CLASS_MEM_GF100, -1 },
 193                 { NVIF_CLASS_MEM_NV50 , -1 },
 194                 { NVIF_CLASS_MEM_NV04 , -1 },
 195                 {}
 196         };
 197         static const struct nvif_mclass
 198         mmus[] = {
 199                 { NVIF_CLASS_MMU_GF100, -1 },
 200                 { NVIF_CLASS_MMU_NV50 , -1 },
 201                 { NVIF_CLASS_MMU_NV04 , -1 },
 202                 {}
 203         };
 204         static const struct nvif_mclass
 205         vmms[] = {
 206                 { NVIF_CLASS_VMM_GP100, -1 },
 207                 { NVIF_CLASS_VMM_GM200, -1 },
 208                 { NVIF_CLASS_VMM_GF100, -1 },
 209                 { NVIF_CLASS_VMM_NV50 , -1 },
 210                 { NVIF_CLASS_VMM_NV04 , -1 },
 211                 {}
 212         };
 213         u64 device = nouveau_name(drm->dev);
 214         int ret;
 215
 216         snprintf(cli->name, sizeof(cli->name), "%s", sname);
 217         cli->drm = drm;
 218         mutex_init(&cli->mutex);
 219         usif_client_init(cli);
 220
 221         INIT_WORK(&cli->work, nouveau_cli_work);
 222         INIT_LIST_HEAD(&cli->worker);
 223         mutex_init(&cli->lock);
 224
 225         if (cli == &drm->master) {
 226                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 227                                        cli->name, device, &cli->base);
 228         } else {
 229                 mutex_lock(&drm->master.lock);
 230                 ret = nvif_client_init(&drm->master.base, cli->name, device,
 231                                        &cli->base);
 232                 mutex_unlock(&drm->master.lock);
 233         }
 234         if (ret) {
 235                 NV_PRINTK(err, cli, "Client allocation failed: %d\n", ret);
 236                 goto done;
 237         }
 238
 239         ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 240                                &(struct nv_device_v0) {
 241                                         .device = ~0,
 242                                }, sizeof(struct nv_device_v0),
 243                                &cli->device);
 244         if (ret) {
 245                 NV_PRINTK(err, cli, "Device allocation failed: %d\n", ret);
 246                 goto done;
 247         }
 248
 249         ret = nvif_mclass(&cli->device.object, mmus);
 250         if (ret < 0) {
 251                 NV_PRINTK(err, cli, "No supported MMU class\n");
 252                 goto done;
 253         }
 254
 255         ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu);
 256         if (ret) {
 257                 NV_PRINTK(err, cli, "MMU allocation failed: %d\n", ret);
 258                 goto done;
 259         }
 260
 261         ret = nvif_mclass(&cli->mmu.object, vmms);
 262         if (ret < 0) {
 263                 NV_PRINTK(err, cli, "No supported VMM class\n");
 264                 goto done;
 265         }
 266
 267         ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm);
 268         if (ret) {
 269                 NV_PRINTK(err, cli, "VMM allocation failed: %d\n", ret);
 270                 goto done;
 271         }
 272
 273         ret = nvif_mclass(&cli->mmu.object, mems);
 274         if (ret < 0) {
 275                 NV_PRINTK(err, cli, "No supported MEM class\n");
 276                 goto done;
 277         }
 278
 279         cli->mem = &mems[ret];
 280         return 0;
 281 done:
 282         if (ret)
 283                 nouveau_cli_fini(cli);
 284         return ret;
 285 }
 286
 287 static void
 288 nouveau_accel_ce_fini(struct nouveau_drm *drm)
 289 {
 290         nouveau_channel_idle(drm->cechan);
 291         nvif_object_fini(&drm->ttm.copy);
 292         nouveau_channel_del(&drm->cechan);
 293 }
 294
 295 static void
 296 nouveau_accel_ce_init(struct nouveau_drm *drm)
 297 {
 298         struct nvif_device *device = &drm->client.device;
 299         int ret = 0;
 300
 301         /* Allocate channel that has access to a (preferably async) copy
 302          * engine, to use for TTM buffer moves.
 303          */
 304         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 305                 ret = nouveau_channel_new(drm, device,
 306                                           nvif_fifo_runlist_ce(device), 0,
 307                                           true, &drm->cechan);
 308         } else
 309         if (device->info.chipset >= 0xa3 &&
 310             device->info.chipset != 0xaa &&
 311             device->info.chipset != 0xac) {
 312                 /* Prior to Kepler, there's only a single runlist, so all
 313                  * engines can be accessed from any channel.
 314                  *
 315                  * We still want to use a separate channel though.
 316                  */
 317                 ret = nouveau_channel_new(drm, device, NvDmaFB, NvDmaTT, false,
 318                                           &drm->cechan);
 319         }
 320
 321         if (ret)
 322                 NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 323 }
 324
 325 static void
 326 nouveau_accel_gr_fini(struct nouveau_drm *drm)
 327 {
 328         nouveau_channel_idle(drm->channel);
 329         nvif_object_fini(&drm->ntfy);
 330         nvkm_gpuobj_del(&drm->notify);
 331         nvif_object_fini(&drm->nvsw);
 332         nouveau_channel_del(&drm->channel);
 333 }
 334
 335 static void
 336 nouveau_accel_gr_init(struct nouveau_drm *drm)
 337 {
 338         struct nvif_device *device = &drm->client.device;
 339         u32 arg0, arg1;
 340         int ret;
 341
 342         /* Allocate channel that has access to the graphics engine. */
 343         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 344                 arg0 = nvif_fifo_runlist(device, NV_DEVICE_INFO_ENGINE_GR);
 345                 arg1 = 1;
 346         } else {
 347                 arg0 = NvDmaFB;
 348                 arg1 = NvDmaTT;
 349         }
 350
 351         ret = nouveau_channel_new(drm, device, arg0, arg1, false,
 352                                   &drm->channel);
 353         if (ret) {
 354                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 355                 nouveau_accel_gr_fini(drm);
 356                 return;
 357         }
 358
 359         /* A SW class is used on pre-NV50 HW to assist with handling the
 360          * synchronisation of page flips, as well as to implement fences
 361          * on TNT/TNT2 HW that lacks any kind of support in host.
 362          */
 363         if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
 364                 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 365                                        nouveau_abi16_swclass(drm), NULL, 0,
 366                                        &drm->nvsw);
 367                 if (ret == 0) {
 368                         ret = RING_SPACE(drm->channel, 2);
 369                         if (ret == 0) {
 370                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 371                                 OUT_RING  (drm->channel, drm->nvsw.handle);
 372                         }
 373                 }
 374
 375                 if (ret) {
 376                         NV_ERROR(drm, "failed to allocate sw class, %d\n", ret);
 377                         nouveau_accel_gr_fini(drm);
 378                         return;
 379                 }
 380         }
 381
 382         /* NvMemoryToMemoryFormat requires a notifier ctxdma for some reason,
 383          * even if notification is never requested, so, allocate a ctxdma on
 384          * any GPU where it's possible we'll end up using M2MF for BO moves.
 385          */
 386         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 387                 ret = nvkm_gpuobj_new(nvxx_device(device), 32, 0, false, NULL,
 388                                       &drm->notify);
 389                 if (ret) {
 390                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 391                         nouveau_accel_gr_fini(drm);
 392                         return;
 393                 }
 394
 395                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 396                                        NV_DMA_IN_MEMORY,
 397                                        &(struct nv_dma_v0) {
 398                                                 .target = NV_DMA_V0_TARGET_VRAM,
 399                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 400                                                 .start = drm->notify->addr,
 401                                                 .limit = drm->notify->addr + 31
 402                                        }, sizeof(struct nv_dma_v0),
 403                                        &drm->ntfy);
 404                 if (ret) {
 405                         nouveau_accel_gr_fini(drm);
 406                         return;
 407                 }
 408         }
 409 }
 410
 411 static void
 412 nouveau_accel_fini(struct nouveau_drm *drm)
 413 {
 414         nouveau_accel_ce_fini(drm);
 415         nouveau_accel_gr_fini(drm);
 416         if (drm->fence)
 417                 nouveau_fence(drm)->dtor(drm);
 418 }
 419
 420 static void
 421 nouveau_accel_init(struct nouveau_drm *drm)
 422 {
 423         struct nvif_device *device = &drm->client.device;
 424         struct nvif_sclass *sclass;
 425         int ret, i, n;
 426
 427         if (nouveau_noaccel)
 428                 return;
 429
 430         /* Initialise global support for channels, and synchronisation. */
 431         ret = nouveau_channels_init(drm);
 432         if (ret)
 433                 return;
 434
 435         /*XXX: this is crap, but the fence/channel stuff is a little
 436          *     backwards in some places.  this will be fixed.
 437          */
 438         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 439         if (ret < 0)
 440                 return;
 441
 442         for (ret = -ENOSYS, i = 0; i < n; i++) {
 443                 switch (sclass[i].oclass) {
 444                 case NV03_CHANNEL_DMA:
 445                         ret = nv04_fence_create(drm);
 446                         break;
 447                 case NV10_CHANNEL_DMA:
 448                         ret = nv10_fence_create(drm);
 449                         break;
 450                 case NV17_CHANNEL_DMA:
 451                 case NV40_CHANNEL_DMA:
 452                         ret = nv17_fence_create(drm);
 453                         break;
 454                 case NV50_CHANNEL_GPFIFO:
 455                         ret = nv50_fence_create(drm);
 456                         break;
 457                 case G82_CHANNEL_GPFIFO:
 458                         ret = nv84_fence_create(drm);
 459                         break;
 460                 case FERMI_CHANNEL_GPFIFO:
 461                 case KEPLER_CHANNEL_GPFIFO_A:
 462                 case KEPLER_CHANNEL_GPFIFO_B:
 463                 case MAXWELL_CHANNEL_GPFIFO_A:
 464                 case PASCAL_CHANNEL_GPFIFO_A:
 465                 case VOLTA_CHANNEL_GPFIFO_A:
 466                 case TURING_CHANNEL_GPFIFO_A:
 467                         ret = nvc0_fence_create(drm);
 468                         break;
 469                 default:
 470                         break;
 471                 }
 472         }
 473
 474         nvif_object_sclass_put(&sclass);
 475         if (ret) {
 476                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 477                 nouveau_accel_fini(drm);
 478                 return;
 479         }
 480
 481         /* Volta requires access to a doorbell register for kickoff. */
 482         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) {
 483                 ret = nvif_user_init(device);
 484                 if (ret)
 485                         return;
 486         }
 487
 488         /* Allocate channels we need to support various functions. */
 489         nouveau_accel_gr_init(drm);
 490         nouveau_accel_ce_init(drm);
 491
 492         /* Initialise accelerated TTM buffer moves. */
 493         nouveau_bo_move_init(drm);
 494 }
 495
 496 static int
 497 nouveau_drm_device_init(struct drm_device *dev)
 498 {
 499         struct nouveau_drm *drm;
 500         int ret;
 501
 502         if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
 503                 return -ENOMEM;
 504         dev->dev_private = drm;
 505         drm->dev = dev;
 506
 507         ret = nouveau_cli_init(drm, "DRM-master", &drm->master);
 508         if (ret)
 509                 goto fail_alloc;
 510
 511         ret = nouveau_cli_init(drm, "DRM", &drm->client);
 512         if (ret)
 513                 goto fail_master;
 514
 515         dev->irq_enabled = true;
 516
 517         nvxx_client(&drm->client.base)->debug =
 518                 nvkm_dbgopt(nouveau_debug, "DRM");
 519
 520         INIT_LIST_HEAD(&drm->clients);
 521         spin_lock_init(&drm->tile.lock);
 522
 523         /* workaround an odd issue on nvc1 by disabling the device's
 524          * nosnoop capability.  hopefully won't cause issues until a
 525          * better fix is found - assuming there is one...
 526          */
 527         if (drm->client.device.info.chipset == 0xc1)
 528                 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
 529
 530         nouveau_vga_init(drm);
 531
 532         ret = nouveau_ttm_init(drm);
 533         if (ret)
 534                 goto fail_ttm;
 535
 536         ret = nouveau_bios_init(dev);
 537         if (ret)
 538                 goto fail_bios;
 539
 540         nouveau_accel_init(drm);
 541
 542         ret = nouveau_display_create(dev);
 543         if (ret)
 544                 goto fail_dispctor;
 545
 546         if (dev->mode_config.num_crtc) {
 547                 ret = nouveau_display_init(dev, false, false);
 548                 if (ret)
 549                         goto fail_dispinit;
 550         }
 551
 552         nouveau_debugfs_init(drm);
 553         nouveau_hwmon_init(dev);
 554         nouveau_svm_init(drm);
 555         nouveau_dmem_init(drm);
 556         nouveau_fbcon_init(dev);
 557         nouveau_led_init(dev);
 558
 559         if (nouveau_pmops_runtime()) {
 560                 pm_runtime_use_autosuspend(dev->dev);
 561                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 562                 pm_runtime_set_active(dev->dev);
 563                 pm_runtime_allow(dev->dev);
 564                 pm_runtime_mark_last_busy(dev->dev);
 565                 pm_runtime_put(dev->dev);
 566         }
 567
 568         return 0;
 569
 570 fail_dispinit:
 571         nouveau_display_destroy(dev);
 572 fail_dispctor:
 573         nouveau_accel_fini(drm);
 574         nouveau_bios_takedown(dev);
 575 fail_bios:
 576         nouveau_ttm_fini(drm);
 577 fail_ttm:
 578         nouveau_vga_fini(drm);
 579         nouveau_cli_fini(&drm->client);
 580 fail_master:
 581         nouveau_cli_fini(&drm->master);
 582 fail_alloc:
 583         kfree(drm);
 584         return ret;
 585 }
 586
 587 static void
 588 nouveau_drm_device_fini(struct drm_device *dev)
 589 {
 590         struct nouveau_drm *drm = nouveau_drm(dev);
 591
 592         if (nouveau_pmops_runtime()) {
 593                 pm_runtime_get_sync(dev->dev);
 594                 pm_runtime_forbid(dev->dev);
 595         }
 596
 597         nouveau_led_fini(dev);
 598         nouveau_fbcon_fini(dev);
 599         nouveau_dmem_fini(drm);
 600         nouveau_svm_fini(drm);
 601         nouveau_hwmon_fini(dev);
 602         nouveau_debugfs_fini(drm);
 603
 604         if (dev->mode_config.num_crtc)
 605                 nouveau_display_fini(dev, false, false);
 606         nouveau_display_destroy(dev);
 607
 608         nouveau_accel_fini(drm);
 609         nouveau_bios_takedown(dev);
 610
 611         nouveau_ttm_fini(drm);
 612         nouveau_vga_fini(drm);
 613
 614         nouveau_cli_fini(&drm->client);
 615         nouveau_cli_fini(&drm->master);
 616         kfree(drm);
 617 }
 618
 619 static int nouveau_drm_probe(struct pci_dev *pdev,
 620                              const struct pci_device_id *pent)
 621 {
 622         struct nvkm_device *device;
 623         struct drm_device *drm_dev;
 624         struct apertures_struct *aper;
 625         bool boot = false;
 626         int ret;
 627
 628         if (vga_switcheroo_client_probe_defer(pdev))
 629                 return -EPROBE_DEFER;
 630
 631         /* We need to check that the chipset is supported before booting
 632          * fbdev off the hardware, as there's no way to put it back.
 633          */
 634         ret = nvkm_device_pci_new(pdev, nouveau_config, "error",
 635                                   true, false, 0, &device);
 636         if (ret)
 637                 return ret;
 638
 639         nvkm_device_del(&device);
 640
 641         /* Remove conflicting drivers (vesafb, efifb etc). */
 642         aper = alloc_apertures(3);
 643         if (!aper)
 644                 return -ENOMEM;
 645
 646         aper->ranges[0].base = pci_resource_start(pdev, 1);
 647         aper->ranges[0].size = pci_resource_len(pdev, 1);
 648         aper->count = 1;
 649
 650         if (pci_resource_len(pdev, 2)) {
 651                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 652                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 653                 aper->count++;
 654         }
 655
 656         if (pci_resource_len(pdev, 3)) {
 657                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 658                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 659                 aper->count++;
 660         }
 661
 662 #ifdef CONFIG_X86
 663         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 664 #endif
 665         if (nouveau_modeset != 2)
 666                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 667         kfree(aper);
 668
 669         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 670                                   true, true, ~0ULL, &device);
 671         if (ret)
 672                 return ret;
 673
 674         pci_set_master(pdev);
 675
 676         if (nouveau_atomic)
 677                 driver_pci.driver_features |= DRIVER_ATOMIC;
 678
 679         drm_dev = drm_dev_alloc(&driver_pci, &pdev->dev);
 680         if (IS_ERR(drm_dev)) {
 681                 ret = PTR_ERR(drm_dev);
 682                 goto fail_nvkm;
 683         }
 684
 685         ret = pci_enable_device(pdev);
 686         if (ret)
 687                 goto fail_drm;
 688
 689         drm_dev->pdev = pdev;
 690         pci_set_drvdata(pdev, drm_dev);
 691
 692         ret = nouveau_drm_device_init(drm_dev);
 693         if (ret)
 694                 goto fail_pci;
 695
 696         ret = drm_dev_register(drm_dev, pent->driver_data);
 697         if (ret)
 698                 goto fail_drm_dev_init;
 699
 700         return 0;
 701
 702 fail_drm_dev_init:
 703         nouveau_drm_device_fini(drm_dev);
 704 fail_pci:
 705         pci_disable_device(pdev);
 706 fail_drm:
 707         drm_dev_put(drm_dev);
 708 fail_nvkm:
 709         nvkm_device_del(&device);
 710         return ret;
 711 }
 712
 713 void
 714 nouveau_drm_device_remove(struct drm_device *dev)
 715 {
 716         struct pci_dev *pdev = dev->pdev;
 717         struct nouveau_drm *drm = nouveau_drm(dev);
 718         struct nvkm_client *client;
 719         struct nvkm_device *device;
 720
 721         drm_dev_unregister(dev);
 722
 723         dev->irq_enabled = false;
 724         client = nvxx_client(&drm->client.base);
 725         device = nvkm_device_find(client->device);
 726
 727         nouveau_drm_device_fini(dev);
 728         pci_disable_device(pdev);
 729         drm_dev_put(dev);
 730         nvkm_device_del(&device);
 731 }
 732
 733 static void
 734 nouveau_drm_remove(struct pci_dev *pdev)
 735 {
 736         struct drm_device *dev = pci_get_drvdata(pdev);
 737
 738         nouveau_drm_device_remove(dev);
 739 }
 740
 741 static int
 742 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 743 {
 744         struct nouveau_drm *drm = nouveau_drm(dev);
 745         int ret;
 746
 747         nouveau_svm_suspend(drm);
 748         nouveau_dmem_suspend(drm);
 749         nouveau_led_suspend(dev);
 750
 751         if (dev->mode_config.num_crtc) {
 752                 NV_DEBUG(drm, "suspending console...\n");
 753                 nouveau_fbcon_set_suspend(dev, 1);
 754                 NV_DEBUG(drm, "suspending display...\n");
 755                 ret = nouveau_display_suspend(dev, runtime);
 756                 if (ret)
 757                         return ret;
 758         }
 759
 760         NV_DEBUG(drm, "evicting buffers...\n");
 761         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 762
 763         NV_DEBUG(drm, "waiting for kernel channels to go idle...\n");
 764         if (drm->cechan) {
 765                 ret = nouveau_channel_idle(drm->cechan);
 766                 if (ret)
 767                         goto fail_display;
 768         }
 769
 770         if (drm->channel) {
 771                 ret = nouveau_channel_idle(drm->channel);
 772                 if (ret)
 773                         goto fail_display;
 774         }
 775
 776         NV_DEBUG(drm, "suspending fence...\n");
 777         if (drm->fence && nouveau_fence(drm)->suspend) {
 778                 if (!nouveau_fence(drm)->suspend(drm)) {
 779                         ret = -ENOMEM;
 780                         goto fail_display;
 781                 }
 782         }
 783
 784         NV_DEBUG(drm, "suspending object tree...\n");
 785         ret = nvif_client_suspend(&drm->master.base);
 786         if (ret)
 787                 goto fail_client;
 788
 789         return 0;
 790
 791 fail_client:
 792         if (drm->fence && nouveau_fence(drm)->resume)
 793                 nouveau_fence(drm)->resume(drm);
 794
 795 fail_display:
 796         if (dev->mode_config.num_crtc) {
 797                 NV_DEBUG(drm, "resuming display...\n");
 798                 nouveau_display_resume(dev, runtime);
 799         }
 800         return ret;
 801 }
 802
 803 static int
 804 nouveau_do_resume(struct drm_device *dev, bool runtime)
 805 {
 806         int ret = 0;
 807         struct nouveau_drm *drm = nouveau_drm(dev);
 808
 809         NV_DEBUG(drm, "resuming object tree...\n");
 810         ret = nvif_client_resume(&drm->master.base);
 811         if (ret) {
 812                 NV_ERROR(drm, "Client resume failed with error: %d\n", ret);
 813                 return ret;
 814         }
 815
 816         NV_DEBUG(drm, "resuming fence...\n");
 817         if (drm->fence && nouveau_fence(drm)->resume)
 818                 nouveau_fence(drm)->resume(drm);
 819
 820         nouveau_run_vbios_init(dev);
 821
 822         if (dev->mode_config.num_crtc) {
 823                 NV_DEBUG(drm, "resuming display...\n");
 824                 nouveau_display_resume(dev, runtime);
 825                 NV_DEBUG(drm, "resuming console...\n");
 826                 nouveau_fbcon_set_suspend(dev, 0);
 827         }
 828
 829         nouveau_led_resume(dev);
 830         nouveau_dmem_resume(drm);
 831         nouveau_svm_resume(drm);
 832         return 0;
 833 }
 834
 835 int
 836 nouveau_pmops_suspend(struct device *dev)
 837 {
 838         struct pci_dev *pdev = to_pci_dev(dev);
 839         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 840         int ret;
 841
 842         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 843             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 844                 return 0;
 845
 846         ret = nouveau_do_suspend(drm_dev, false);
 847         if (ret)
 848                 return ret;
 849
 850         pci_save_state(pdev);
 851         pci_disable_device(pdev);
 852         pci_set_power_state(pdev, PCI_D3hot);
 853         udelay(200);
 854         return 0;
 855 }
 856
 857 int
 858 nouveau_pmops_resume(struct device *dev)
 859 {
 860         struct pci_dev *pdev = to_pci_dev(dev);
 861         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 862         int ret;
 863
 864         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 865             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 866                 return 0;
 867
 868         pci_set_power_state(pdev, PCI_D0);
 869         pci_restore_state(pdev);
 870         ret = pci_enable_device(pdev);
 871         if (ret)
 872                 return ret;
 873         pci_set_master(pdev);
 874
 875         ret = nouveau_do_resume(drm_dev, false);
 876
 877         /* Monitors may have been connected / disconnected during suspend */
 878         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 879
 880         return ret;
 881 }
 882
 883 static int
 884 nouveau_pmops_freeze(struct device *dev)
 885 {
 886         struct pci_dev *pdev = to_pci_dev(dev);
 887         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 888         return nouveau_do_suspend(drm_dev, false);
 889 }
 890
 891 static int
 892 nouveau_pmops_thaw(struct device *dev)
 893 {
 894         struct pci_dev *pdev = to_pci_dev(dev);
 895         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 896         return nouveau_do_resume(drm_dev, false);
 897 }
 898
 899 bool
 900 nouveau_pmops_runtime(void)
 901 {
 902         if (nouveau_runtime_pm == -1)
 903                 return nouveau_is_optimus() || nouveau_is_v1_dsm();
 904         return nouveau_runtime_pm == 1;
 905 }
 906
 907 static int
 908 nouveau_pmops_runtime_suspend(struct device *dev)
 909 {
 910         struct pci_dev *pdev = to_pci_dev(dev);
 911         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 912         int ret;
 913
 914         if (!nouveau_pmops_runtime()) {
 915                 pm_runtime_forbid(dev);
 916                 return -EBUSY;
 917         }
 918
 919         nouveau_switcheroo_optimus_dsm();
 920         ret = nouveau_do_suspend(drm_dev, true);
 921         pci_save_state(pdev);
 922         pci_disable_device(pdev);
 923         pci_ignore_hotplug(pdev);
 924         pci_set_power_state(pdev, PCI_D3cold);
 925         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 926         return ret;
 927 }
 928
 929 static int
 930 nouveau_pmops_runtime_resume(struct device *dev)
 931 {
 932         struct pci_dev *pdev = to_pci_dev(dev);
 933         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 934         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 935         struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
 936         int ret;
 937
 938         if (!nouveau_pmops_runtime()) {
 939                 pm_runtime_forbid(dev);
 940                 return -EBUSY;
 941         }
 942
 943         pci_set_power_state(pdev, PCI_D0);
 944         pci_restore_state(pdev);
 945         ret = pci_enable_device(pdev);
 946         if (ret)
 947                 return ret;
 948         pci_set_master(pdev);
 949
 950         ret = nouveau_do_resume(drm_dev, true);
 951         if (ret) {
 952                 NV_ERROR(drm, "resume failed with: %d\n", ret);
 953                 return ret;
 954         }
 955
 956         /* do magic */
 957         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 958         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 959
 960         /* Monitors may have been connected / disconnected during suspend */
 961         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 962
 963         return ret;
 964 }
 965
 966 static int
 967 nouveau_pmops_runtime_idle(struct device *dev)
 968 {
 969         if (!nouveau_pmops_runtime()) {
 970                 pm_runtime_forbid(dev);
 971                 return -EBUSY;
 972         }
 973
 974         pm_runtime_mark_last_busy(dev);
 975         pm_runtime_autosuspend(dev);
 976         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 977         return 1;
 978 }
 979
 980 static int
 981 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 982 {
 983         struct nouveau_drm *drm = nouveau_drm(dev);
 984         struct nouveau_cli *cli;
 985         char name[32], tmpname[TASK_COMM_LEN];
 986         int ret;
 987
 988         /* need to bring up power immediately if opening device */
 989         ret = pm_runtime_get_sync(dev->dev);
 990         if (ret < 0 && ret != -EACCES)
 991                 return ret;
 992
 993         get_task_comm(tmpname, current);
 994         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 995
 996         if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) {
 997                 ret = -ENOMEM;
 998                 goto done;
 999         }
1000
1001         ret = nouveau_cli_init(drm, name, cli);
1002         if (ret)
1003                 goto done;
1004
1005         cli->base.super = false;
1006
1007         fpriv->driver_priv = cli;
1008
1009         mutex_lock(&drm->client.mutex);
1010         list_add(&cli->head, &drm->clients);
1011         mutex_unlock(&drm->client.mutex);
1012
1013 done:
1014         if (ret && cli) {
1015                 nouveau_cli_fini(cli);
1016                 kfree(cli);
1017         }
1018
1019         pm_runtime_mark_last_busy(dev->dev);
1020         pm_runtime_put_autosuspend(dev->dev);
1021         return ret;
1022 }
1023
1024 static void
1025 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
1026 {
1027         struct nouveau_cli *cli = nouveau_cli(fpriv);
1028         struct nouveau_drm *drm = nouveau_drm(dev);
1029
1030         pm_runtime_get_sync(dev->dev);
1031
1032         mutex_lock(&cli->mutex);
1033         if (cli->abi16)
1034                 nouveau_abi16_fini(cli->abi16);
1035         mutex_unlock(&cli->mutex);
1036
1037         mutex_lock(&drm->client.mutex);
1038         list_del(&cli->head);
1039         mutex_unlock(&drm->client.mutex);
1040
1041         nouveau_cli_fini(cli);
1042         kfree(cli);
1043         pm_runtime_mark_last_busy(dev->dev);
1044         pm_runtime_put_autosuspend(dev->dev);
1045 }
1046
1047 static const struct drm_ioctl_desc
1048 nouveau_ioctls[] = {
1049         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_RENDER_ALLOW),
1050         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, drm_invalid_op, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1051         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_RENDER_ALLOW),
1052         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_RENDER_ALLOW),
1053         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_RENDER_ALLOW),
1054         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_RENDER_ALLOW),
1055         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_RENDER_ALLOW),
1056         DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_INIT, nouveau_svmm_init, DRM_RENDER_ALLOW),
1057         DRM_IOCTL_DEF_DRV(NOUVEAU_SVM_BIND, nouveau_svmm_bind, DRM_RENDER_ALLOW),
1058         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_RENDER_ALLOW),
1059         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_RENDER_ALLOW),
1060         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_RENDER_ALLOW),
1061         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_RENDER_ALLOW),
1062         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_RENDER_ALLOW),
1063 };
1064
1065 long
1066 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1067 {
1068         struct drm_file *filp = file->private_data;
1069         struct drm_device *dev = filp->minor->dev;
1070         long ret;
1071
1072         ret = pm_runtime_get_sync(dev->dev);
1073         if (ret < 0 && ret != -EACCES)
1074                 return ret;
1075
1076         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
1077         case DRM_NOUVEAU_NVIF:
1078                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
1079                 break;
1080         default:
1081                 ret = drm_ioctl(file, cmd, arg);
1082                 break;
1083         }
1084
1085         pm_runtime_mark_last_busy(dev->dev);
1086         pm_runtime_put_autosuspend(dev->dev);
1087         return ret;
1088 }
1089
1090 static const struct file_operations
1091 nouveau_driver_fops = {
1092         .owner = THIS_MODULE,
1093         .open = drm_open,
1094         .release = drm_release,
1095         .unlocked_ioctl = nouveau_drm_ioctl,
1096         .mmap = nouveau_ttm_mmap,
1097         .poll = drm_poll,
1098         .read = drm_read,
1099 #if defined(CONFIG_COMPAT)
1100         .compat_ioctl = nouveau_compat_ioctl,
1101 #endif
1102         .llseek = noop_llseek,
1103 };
1104
1105 static struct drm_driver
1106 driver_stub = {
1107         .driver_features =
1108                 DRIVER_GEM | DRIVER_MODESET | DRIVER_RENDER
1109 #if defined(CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT)
1110                 | DRIVER_KMS_LEGACY_CONTEXT
1111 #endif
1112                 ,
1113
1114         .open = nouveau_drm_open,
1115         .postclose = nouveau_drm_postclose,
1116         .lastclose = nouveau_vga_lastclose,
1117
1118 #if defined(CONFIG_DEBUG_FS)
1119         .debugfs_init = nouveau_drm_debugfs_init,
1120 #endif
1121
1122         .enable_vblank = nouveau_display_vblank_enable,
1123         .disable_vblank = nouveau_display_vblank_disable,
1124         .get_scanout_position = nouveau_display_scanoutpos,
1125         .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
1126
1127         .ioctls = nouveau_ioctls,
1128         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
1129         .fops = &nouveau_driver_fops,
1130
1131         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
1132         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
1133         .gem_prime_pin = nouveau_gem_prime_pin,
1134         .gem_prime_unpin = nouveau_gem_prime_unpin,
1135         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
1136         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1137         .gem_prime_vmap = nouveau_gem_prime_vmap,
1138         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1139
1140         .gem_free_object_unlocked = nouveau_gem_object_del,
1141         .gem_open_object = nouveau_gem_object_open,
1142         .gem_close_object = nouveau_gem_object_close,
1143
1144         .dumb_create = nouveau_display_dumb_create,
1145         .dumb_map_offset = nouveau_display_dumb_map_offset,
1146
1147         .name = DRIVER_NAME,
1148         .desc = DRIVER_DESC,
1149 #ifdef GIT_REVISION
1150         .date = GIT_REVISION,
1151 #else
1152         .date = DRIVER_DATE,
1153 #endif
1154         .major = DRIVER_MAJOR,
1155         .minor = DRIVER_MINOR,
1156         .patchlevel = DRIVER_PATCHLEVEL,
1157 };
1158
1159 static struct pci_device_id
1160 nouveau_drm_pci_table[] = {
1161         {
1162                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1163                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1164                 .class_mask  = 0xff << 16,
1165         },
1166         {
1167                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1168                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1169                 .class_mask  = 0xff << 16,
1170         },
1171         {}
1172 };
1173
1174 static void nouveau_display_options(void)
1175 {
1176         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1177
1178         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1179         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1180         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1181         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1182         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1183         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1184         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1185         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1186         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1187         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1188         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1189 }
1190
1191 static const struct dev_pm_ops nouveau_pm_ops = {
1192         .suspend = nouveau_pmops_suspend,
1193         .resume = nouveau_pmops_resume,
1194         .freeze = nouveau_pmops_freeze,
1195         .thaw = nouveau_pmops_thaw,
1196         .poweroff = nouveau_pmops_freeze,
1197         .restore = nouveau_pmops_resume,
1198         .runtime_suspend = nouveau_pmops_runtime_suspend,
1199         .runtime_resume = nouveau_pmops_runtime_resume,
1200         .runtime_idle = nouveau_pmops_runtime_idle,
1201 };
1202
1203 static struct pci_driver
1204 nouveau_drm_pci_driver = {
1205         .name = "nouveau",
1206         .id_table = nouveau_drm_pci_table,
1207         .probe = nouveau_drm_probe,
1208         .remove = nouveau_drm_remove,
1209         .driver.pm = &nouveau_pm_ops,
1210 };
1211
1212 struct drm_device *
1213 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1214                                struct platform_device *pdev,
1215                                struct nvkm_device **pdevice)
1216 {
1217         struct drm_device *drm;
1218         int err;
1219
1220         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1221                                     true, true, ~0ULL, pdevice);
1222         if (err)
1223                 goto err_free;
1224
1225         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1226         if (IS_ERR(drm)) {
1227                 err = PTR_ERR(drm);
1228                 goto err_free;
1229         }
1230
1231         err = nouveau_drm_device_init(drm);
1232         if (err)
1233                 goto err_put;
1234
1235         platform_set_drvdata(pdev, drm);
1236
1237         return drm;
1238
1239 err_put:
1240         drm_dev_put(drm);
1241 err_free:
1242         nvkm_device_del(pdevice);
1243
1244         return ERR_PTR(err);
1245 }
1246
1247 static int __init
1248 nouveau_drm_init(void)
1249 {
1250         driver_pci = driver_stub;
1251         driver_platform = driver_stub;
1252
1253         nouveau_display_options();
1254
1255         if (nouveau_modeset == -1) {
1256                 if (vgacon_text_force())
1257                         nouveau_modeset = 0;
1258         }
1259
1260         if (!nouveau_modeset)
1261                 return 0;
1262
1263 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1264         platform_driver_register(&nouveau_platform_driver);
1265 #endif
1266
1267         nouveau_register_dsm_handler();
1268         nouveau_backlight_ctor();
1269
1270 #ifdef CONFIG_PCI
1271         return pci_register_driver(&nouveau_drm_pci_driver);
1272 #else
1273         return 0;
1274 #endif
1275 }
1276
1277 static void __exit
1278 nouveau_drm_exit(void)
1279 {
1280         if (!nouveau_modeset)
1281                 return;
1282
1283 #ifdef CONFIG_PCI
1284         pci_unregister_driver(&nouveau_drm_pci_driver);
1285 #endif
1286         nouveau_backlight_dtor();
1287         nouveau_unregister_dsm_handler();
1288
1289 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1290         platform_driver_unregister(&nouveau_platform_driver);
1291 #endif
1292 }
1293
1294 module_init(nouveau_drm_init);
1295 module_exit(nouveau_drm_exit);
1296
1297 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1298 MODULE_AUTHOR(DRIVER_AUTHOR);
1299 MODULE_DESCRIPTION(DRIVER_DESC);
1300 MODULE_LICENSE("GPL and additional rights");