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 #include <nvif/if0004.h>
  48
  49 #include "nouveau_drv.h"
  50 #include "nouveau_dma.h"
  51 #include "nouveau_ttm.h"
  52 #include "nouveau_gem.h"
  53 #include "nouveau_vga.h"
  54 #include "nouveau_led.h"
  55 #include "nouveau_hwmon.h"
  56 #include "nouveau_acpi.h"
  57 #include "nouveau_bios.h"
  58 #include "nouveau_ioctl.h"
  59 #include "nouveau_abi16.h"
  60 #include "nouveau_fbcon.h"
  61 #include "nouveau_fence.h"
  62 #include "nouveau_debugfs.h"
  63 #include "nouveau_usif.h"
  64 #include "nouveau_connector.h"
  65 #include "nouveau_platform.h"
  66
  67 MODULE_PARM_DESC(config, "option string to pass to driver core");
  68 static char *nouveau_config;
  69 module_param_named(config, nouveau_config, charp, 0400);
  70
  71 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  72 static char *nouveau_debug;
  73 module_param_named(debug, nouveau_debug, charp, 0400);
  74
  75 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  76 static int nouveau_noaccel = 0;
  77 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  78
  79 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  80                           "0 = disabled, 1 = enabled, 2 = headless)");
  81 int nouveau_modeset = -1;
  82 module_param_named(modeset, nouveau_modeset, int, 0400);
  83
  84 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)");
  85 static int nouveau_atomic = 0;
  86 module_param_named(atomic, nouveau_atomic, int, 0400);
  87
  88 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  89 static int nouveau_runtime_pm = -1;
  90 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  91
  92 static struct drm_driver driver_stub;
  93 static struct drm_driver driver_pci;
  94 static struct drm_driver driver_platform;
  95
  96 static u64
  97 nouveau_pci_name(struct pci_dev *pdev)
  98 {
  99         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 100         name |= pdev->bus->number << 16;
 101         name |= PCI_SLOT(pdev->devfn) << 8;
 102         return name | PCI_FUNC(pdev->devfn);
 103 }
 104
 105 static u64
 106 nouveau_platform_name(struct platform_device *platformdev)
 107 {
 108         return platformdev->id;
 109 }
 110
 111 static u64
 112 nouveau_name(struct drm_device *dev)
 113 {
 114         if (dev->pdev)
 115                 return nouveau_pci_name(dev->pdev);
 116         else
 117                 return nouveau_platform_name(to_platform_device(dev->dev));
 118 }
 119
 120 static inline bool
 121 nouveau_cli_work_ready(struct dma_fence *fence)
 122 {
 123         if (!dma_fence_is_signaled(fence))
 124                 return false;
 125         dma_fence_put(fence);
 126         return true;
 127 }
 128
 129 static void
 130 nouveau_cli_work(struct work_struct *w)
 131 {
 132         struct nouveau_cli *cli = container_of(w, typeof(*cli), work);
 133         struct nouveau_cli_work *work, *wtmp;
 134         mutex_lock(&cli->lock);
 135         list_for_each_entry_safe(work, wtmp, &cli->worker, head) {
 136                 if (!work->fence || nouveau_cli_work_ready(work->fence)) {
 137                         list_del(&work->head);
 138                         work->func(work);
 139                 }
 140         }
 141         mutex_unlock(&cli->lock);
 142 }
 143
 144 static void
 145 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb)
 146 {
 147         struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb);
 148         schedule_work(&work->cli->work);
 149 }
 150
 151 void
 152 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence,
 153                        struct nouveau_cli_work *work)
 154 {
 155         work->fence = dma_fence_get(fence);
 156         work->cli = cli;
 157         mutex_lock(&cli->lock);
 158         list_add_tail(&work->head, &cli->worker);
 159         if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence))
 160                 nouveau_cli_work_fence(fence, &work->cb);
 161         mutex_unlock(&cli->lock);
 162 }
 163
 164 static void
 165 nouveau_cli_fini(struct nouveau_cli *cli)
 166 {
 167         /* All our channels are dead now, which means all the fences they
 168          * own are signalled, and all callback functions have been called.
 169          *
 170          * So, after flushing the workqueue, there should be nothing left.
 171          */
 172         flush_work(&cli->work);
 173         WARN_ON(!list_empty(&cli->worker));
 174
 175         usif_client_fini(cli);
 176         nouveau_vmm_fini(&cli->vmm);
 177         nvif_mmu_fini(&cli->mmu);
 178         nvif_device_fini(&cli->device);
 179         mutex_lock(&cli->drm->master.lock);
 180         nvif_client_fini(&cli->base);
 181         mutex_unlock(&cli->drm->master.lock);
 182 }
 183
 184 static int
 185 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 186                  struct nouveau_cli *cli)
 187 {
 188         static const struct nvif_mclass
 189         mems[] = {
 190                 { NVIF_CLASS_MEM_GF100, -1 },
 191                 { NVIF_CLASS_MEM_NV50 , -1 },
 192                 { NVIF_CLASS_MEM_NV04 , -1 },
 193                 {}
 194         };
 195         static const struct nvif_mclass
 196         mmus[] = {
 197                 { NVIF_CLASS_MMU_GF100, -1 },
 198                 { NVIF_CLASS_MMU_NV50 , -1 },
 199                 { NVIF_CLASS_MMU_NV04 , -1 },
 200                 {}
 201         };
 202         static const struct nvif_mclass
 203         vmms[] = {
 204                 { NVIF_CLASS_VMM_GP100, -1 },
 205                 { NVIF_CLASS_VMM_GM200, -1 },
 206                 { NVIF_CLASS_VMM_GF100, -1 },
 207                 { NVIF_CLASS_VMM_NV50 , -1 },
 208                 { NVIF_CLASS_VMM_NV04 , -1 },
 209                 {}
 210         };
 211         u64 device = nouveau_name(drm->dev);
 212         int ret;
 213
 214         snprintf(cli->name, sizeof(cli->name), "%s", sname);
 215         cli->drm = drm;
 216         mutex_init(&cli->mutex);
 217         usif_client_init(cli);
 218
 219         INIT_WORK(&cli->work, nouveau_cli_work);
 220         INIT_LIST_HEAD(&cli->worker);
 221         mutex_init(&cli->lock);
 222
 223         if (cli == &drm->master) {
 224                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 225                                        cli->name, device, &cli->base);
 226         } else {
 227                 mutex_lock(&drm->master.lock);
 228                 ret = nvif_client_init(&drm->master.base, cli->name, device,
 229                                        &cli->base);
 230                 mutex_unlock(&drm->master.lock);
 231         }
 232         if (ret) {
 233                 NV_PRINTK(err, cli, "Client allocation failed: %d\n", ret);
 234                 goto done;
 235         }
 236
 237         ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 238                                &(struct nv_device_v0) {
 239                                         .device = ~0,
 240                                }, sizeof(struct nv_device_v0),
 241                                &cli->device);
 242         if (ret) {
 243                 NV_PRINTK(err, cli, "Device allocation failed: %d\n", ret);
 244                 goto done;
 245         }
 246
 247         ret = nvif_mclass(&cli->device.object, mmus);
 248         if (ret < 0) {
 249                 NV_PRINTK(err, cli, "No supported MMU class\n");
 250                 goto done;
 251         }
 252
 253         ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu);
 254         if (ret) {
 255                 NV_PRINTK(err, cli, "MMU allocation failed: %d\n", ret);
 256                 goto done;
 257         }
 258
 259         ret = nvif_mclass(&cli->mmu.object, vmms);
 260         if (ret < 0) {
 261                 NV_PRINTK(err, cli, "No supported VMM class\n");
 262                 goto done;
 263         }
 264
 265         ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm);
 266         if (ret) {
 267                 NV_PRINTK(err, cli, "VMM allocation failed: %d\n", ret);
 268                 goto done;
 269         }
 270
 271         ret = nvif_mclass(&cli->mmu.object, mems);
 272         if (ret < 0) {
 273                 NV_PRINTK(err, cli, "No supported MEM class\n");
 274                 goto done;
 275         }
 276
 277         cli->mem = &mems[ret];
 278         return 0;
 279 done:
 280         if (ret)
 281                 nouveau_cli_fini(cli);
 282         return ret;
 283 }
 284
 285 static void
 286 nouveau_accel_fini(struct nouveau_drm *drm)
 287 {
 288         nouveau_channel_idle(drm->channel);
 289         nvif_object_fini(&drm->ntfy);
 290         nvkm_gpuobj_del(&drm->notify);
 291         nvif_notify_fini(&drm->flip);
 292         nvif_object_fini(&drm->nvsw);
 293         nouveau_channel_del(&drm->channel);
 294
 295         nouveau_channel_idle(drm->cechan);
 296         nvif_object_fini(&drm->ttm.copy);
 297         nouveau_channel_del(&drm->cechan);
 298
 299         if (drm->fence)
 300                 nouveau_fence(drm)->dtor(drm);
 301 }
 302
 303 static void
 304 nouveau_accel_init(struct nouveau_drm *drm)
 305 {
 306         struct nvif_device *device = &drm->client.device;
 307         struct nvif_sclass *sclass;
 308         u32 arg0, arg1;
 309         int ret, i, n;
 310
 311         if (nouveau_noaccel)
 312                 return;
 313
 314         ret = nouveau_channels_init(drm);
 315         if (ret)
 316                 return;
 317
 318         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) {
 319                 ret = nvif_user_init(device);
 320                 if (ret)
 321                         return;
 322         }
 323
 324         /* initialise synchronisation routines */
 325         /*XXX: this is crap, but the fence/channel stuff is a little
 326          *     backwards in some places.  this will be fixed.
 327          */
 328         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 329         if (ret < 0)
 330                 return;
 331
 332         for (ret = -ENOSYS, i = 0; i < n; i++) {
 333                 switch (sclass[i].oclass) {
 334                 case NV03_CHANNEL_DMA:
 335                         ret = nv04_fence_create(drm);
 336                         break;
 337                 case NV10_CHANNEL_DMA:
 338                         ret = nv10_fence_create(drm);
 339                         break;
 340                 case NV17_CHANNEL_DMA:
 341                 case NV40_CHANNEL_DMA:
 342                         ret = nv17_fence_create(drm);
 343                         break;
 344                 case NV50_CHANNEL_GPFIFO:
 345                         ret = nv50_fence_create(drm);
 346                         break;
 347                 case G82_CHANNEL_GPFIFO:
 348                         ret = nv84_fence_create(drm);
 349                         break;
 350                 case FERMI_CHANNEL_GPFIFO:
 351                 case KEPLER_CHANNEL_GPFIFO_A:
 352                 case KEPLER_CHANNEL_GPFIFO_B:
 353                 case MAXWELL_CHANNEL_GPFIFO_A:
 354                 case PASCAL_CHANNEL_GPFIFO_A:
 355                 case VOLTA_CHANNEL_GPFIFO_A:
 356                 case TURING_CHANNEL_GPFIFO_A:
 357                         ret = nvc0_fence_create(drm);
 358                         break;
 359                 default:
 360                         break;
 361                 }
 362         }
 363
 364         nvif_object_sclass_put(&sclass);
 365         if (ret) {
 366                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 367                 nouveau_accel_fini(drm);
 368                 return;
 369         }
 370
 371         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 372                 ret = nouveau_channel_new(drm, &drm->client.device,
 373                                           nvif_fifo_runlist_ce(device), 0,
 374                                           true, &drm->cechan);
 375                 if (ret)
 376                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 377
 378                 arg0 = nvif_fifo_runlist(device, NV_DEVICE_INFO_ENGINE_GR);
 379                 arg1 = 1;
 380         } else
 381         if (device->info.chipset >= 0xa3 &&
 382             device->info.chipset != 0xaa &&
 383             device->info.chipset != 0xac) {
 384                 ret = nouveau_channel_new(drm, &drm->client.device,
 385                                           NvDmaFB, NvDmaTT, false,
 386                                           &drm->cechan);
 387                 if (ret)
 388                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 389
 390                 arg0 = NvDmaFB;
 391                 arg1 = NvDmaTT;
 392         } else {
 393                 arg0 = NvDmaFB;
 394                 arg1 = NvDmaTT;
 395         }
 396
 397         ret = nouveau_channel_new(drm, &drm->client.device,
 398                                   arg0, arg1, false, &drm->channel);
 399         if (ret) {
 400                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 401                 nouveau_accel_fini(drm);
 402                 return;
 403         }
 404
 405         if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
 406                 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 407                                        nouveau_abi16_swclass(drm), NULL, 0,
 408                                        &drm->nvsw);
 409                 if (ret == 0) {
 410                         ret = RING_SPACE(drm->channel, 2);
 411                         if (ret == 0) {
 412                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 413                                 OUT_RING  (drm->channel, drm->nvsw.handle);
 414                         }
 415
 416                         ret = nvif_notify_init(&drm->nvsw,
 417                                                nouveau_flip_complete,
 418                                                false, NV04_NVSW_NTFY_UEVENT,
 419                                                NULL, 0, 0, &drm->flip);
 420                         if (ret == 0)
 421                                 ret = nvif_notify_get(&drm->flip);
 422                         if (ret) {
 423                                 nouveau_accel_fini(drm);
 424                                 return;
 425                         }
 426                 }
 427
 428                 if (ret) {
 429                         NV_ERROR(drm, "failed to allocate sw class, %d\n", ret);
 430                         nouveau_accel_fini(drm);
 431                         return;
 432                 }
 433         }
 434
 435         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 436                 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0,
 437                                       false, NULL, &drm->notify);
 438                 if (ret) {
 439                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 440                         nouveau_accel_fini(drm);
 441                         return;
 442                 }
 443
 444                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 445                                        NV_DMA_IN_MEMORY,
 446                                        &(struct nv_dma_v0) {
 447                                                 .target = NV_DMA_V0_TARGET_VRAM,
 448                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 449                                                 .start = drm->notify->addr,
 450                                                 .limit = drm->notify->addr + 31
 451                                        }, sizeof(struct nv_dma_v0),
 452                                        &drm->ntfy);
 453                 if (ret) {
 454                         nouveau_accel_fini(drm);
 455                         return;
 456                 }
 457         }
 458
 459
 460         nouveau_bo_move_init(drm);
 461 }
 462
 463 static int
 464 nouveau_drm_device_init(struct drm_device *dev)
 465 {
 466         struct nouveau_drm *drm;
 467         int ret;
 468
 469         if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
 470                 return -ENOMEM;
 471         dev->dev_private = drm;
 472         drm->dev = dev;
 473
 474         ret = nouveau_cli_init(drm, "DRM-master", &drm->master);
 475         if (ret)
 476                 goto fail_alloc;
 477
 478         ret = nouveau_cli_init(drm, "DRM", &drm->client);
 479         if (ret)
 480                 goto fail_master;
 481
 482         dev->irq_enabled = true;
 483
 484         nvxx_client(&drm->client.base)->debug =
 485                 nvkm_dbgopt(nouveau_debug, "DRM");
 486
 487         INIT_LIST_HEAD(&drm->clients);
 488         spin_lock_init(&drm->tile.lock);
 489
 490         /* workaround an odd issue on nvc1 by disabling the device's
 491          * nosnoop capability.  hopefully won't cause issues until a
 492          * better fix is found - assuming there is one...
 493          */
 494         if (drm->client.device.info.chipset == 0xc1)
 495                 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
 496
 497         nouveau_vga_init(drm);
 498
 499         ret = nouveau_ttm_init(drm);
 500         if (ret)
 501                 goto fail_ttm;
 502
 503         ret = nouveau_bios_init(dev);
 504         if (ret)
 505                 goto fail_bios;
 506
 507         ret = nouveau_display_create(dev);
 508         if (ret)
 509                 goto fail_dispctor;
 510
 511         if (dev->mode_config.num_crtc) {
 512                 ret = nouveau_display_init(dev);
 513                 if (ret)
 514                         goto fail_dispinit;
 515         }
 516
 517         nouveau_debugfs_init(drm);
 518         nouveau_hwmon_init(dev);
 519         nouveau_accel_init(drm);
 520         nouveau_fbcon_init(dev);
 521         nouveau_led_init(dev);
 522
 523         if (nouveau_pmops_runtime()) {
 524                 pm_runtime_use_autosuspend(dev->dev);
 525                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 526                 pm_runtime_set_active(dev->dev);
 527                 pm_runtime_allow(dev->dev);
 528                 pm_runtime_mark_last_busy(dev->dev);
 529                 pm_runtime_put(dev->dev);
 530         }
 531
 532         return 0;
 533
 534 fail_dispinit:
 535         nouveau_display_destroy(dev);
 536 fail_dispctor:
 537         nouveau_bios_takedown(dev);
 538 fail_bios:
 539         nouveau_ttm_fini(drm);
 540 fail_ttm:
 541         nouveau_vga_fini(drm);
 542         nouveau_cli_fini(&drm->client);
 543 fail_master:
 544         nouveau_cli_fini(&drm->master);
 545 fail_alloc:
 546         kfree(drm);
 547         return ret;
 548 }
 549
 550 static void
 551 nouveau_drm_device_fini(struct drm_device *dev)
 552 {
 553         struct nouveau_drm *drm = nouveau_drm(dev);
 554
 555         if (nouveau_pmops_runtime()) {
 556                 pm_runtime_get_sync(dev->dev);
 557                 pm_runtime_forbid(dev->dev);
 558         }
 559
 560         nouveau_led_fini(dev);
 561         nouveau_fbcon_fini(dev);
 562         nouveau_accel_fini(drm);
 563         nouveau_hwmon_fini(dev);
 564         nouveau_debugfs_fini(drm);
 565
 566         if (dev->mode_config.num_crtc)
 567                 nouveau_display_fini(dev, false, false);
 568         nouveau_display_destroy(dev);
 569
 570         nouveau_bios_takedown(dev);
 571
 572         nouveau_ttm_fini(drm);
 573         nouveau_vga_fini(drm);
 574
 575         nouveau_cli_fini(&drm->client);
 576         nouveau_cli_fini(&drm->master);
 577         kfree(drm);
 578 }
 579
 580 static int nouveau_drm_probe(struct pci_dev *pdev,
 581                              const struct pci_device_id *pent)
 582 {
 583         struct nvkm_device *device;
 584         struct drm_device *drm_dev;
 585         struct apertures_struct *aper;
 586         bool boot = false;
 587         int ret;
 588
 589         if (vga_switcheroo_client_probe_defer(pdev))
 590                 return -EPROBE_DEFER;
 591
 592         /* We need to check that the chipset is supported before booting
 593          * fbdev off the hardware, as there's no way to put it back.
 594          */
 595         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 596         if (ret)
 597                 return ret;
 598
 599         nvkm_device_del(&device);
 600
 601         /* Remove conflicting drivers (vesafb, efifb etc). */
 602         aper = alloc_apertures(3);
 603         if (!aper)
 604                 return -ENOMEM;
 605
 606         aper->ranges[0].base = pci_resource_start(pdev, 1);
 607         aper->ranges[0].size = pci_resource_len(pdev, 1);
 608         aper->count = 1;
 609
 610         if (pci_resource_len(pdev, 2)) {
 611                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 612                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 613                 aper->count++;
 614         }
 615
 616         if (pci_resource_len(pdev, 3)) {
 617                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 618                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 619                 aper->count++;
 620         }
 621
 622 #ifdef CONFIG_X86
 623         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 624 #endif
 625         if (nouveau_modeset != 2)
 626                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 627         kfree(aper);
 628
 629         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 630                                   true, true, ~0ULL, &device);
 631         if (ret)
 632                 return ret;
 633
 634         pci_set_master(pdev);
 635
 636         if (nouveau_atomic)
 637                 driver_pci.driver_features |= DRIVER_ATOMIC;
 638
 639         drm_dev = drm_dev_alloc(&driver_pci, &pdev->dev);
 640         if (IS_ERR(drm_dev)) {
 641                 ret = PTR_ERR(drm_dev);
 642                 goto fail_nvkm;
 643         }
 644
 645         ret = pci_enable_device(pdev);
 646         if (ret)
 647                 goto fail_drm;
 648
 649         drm_dev->pdev = pdev;
 650         pci_set_drvdata(pdev, drm_dev);
 651
 652         ret = nouveau_drm_device_init(drm_dev);
 653         if (ret)
 654                 goto fail_pci;
 655
 656         ret = drm_dev_register(drm_dev, pent->driver_data);
 657         if (ret)
 658                 goto fail_drm_dev_init;
 659
 660         return 0;
 661
 662 fail_drm_dev_init:
 663         nouveau_drm_device_fini(drm_dev);
 664 fail_pci:
 665         pci_disable_device(pdev);
 666 fail_drm:
 667         drm_dev_put(drm_dev);
 668 fail_nvkm:
 669         nvkm_device_del(&device);
 670         return ret;
 671 }
 672
 673 void
 674 nouveau_drm_device_remove(struct drm_device *dev)
 675 {
 676         struct pci_dev *pdev = dev->pdev;
 677         struct nouveau_drm *drm = nouveau_drm(dev);
 678         struct nvkm_client *client;
 679         struct nvkm_device *device;
 680
 681         drm_dev_unregister(dev);
 682
 683         dev->irq_enabled = false;
 684         client = nvxx_client(&drm->client.base);
 685         device = nvkm_device_find(client->device);
 686
 687         nouveau_drm_device_fini(dev);
 688         pci_disable_device(pdev);
 689         drm_dev_put(dev);
 690         nvkm_device_del(&device);
 691 }
 692
 693 static void
 694 nouveau_drm_remove(struct pci_dev *pdev)
 695 {
 696         struct drm_device *dev = pci_get_drvdata(pdev);
 697
 698         nouveau_drm_device_remove(dev);
 699 }
 700
 701 static int
 702 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 703 {
 704         struct nouveau_drm *drm = nouveau_drm(dev);
 705         int ret;
 706
 707         nouveau_led_suspend(dev);
 708
 709         if (dev->mode_config.num_crtc) {
 710                 NV_DEBUG(drm, "suspending console...\n");
 711                 nouveau_fbcon_set_suspend(dev, 1);
 712                 NV_DEBUG(drm, "suspending display...\n");
 713                 ret = nouveau_display_suspend(dev, runtime);
 714                 if (ret)
 715                         return ret;
 716         }
 717
 718         NV_DEBUG(drm, "evicting buffers...\n");
 719         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 720
 721         NV_DEBUG(drm, "waiting for kernel channels to go idle...\n");
 722         if (drm->cechan) {
 723                 ret = nouveau_channel_idle(drm->cechan);
 724                 if (ret)
 725                         goto fail_display;
 726         }
 727
 728         if (drm->channel) {
 729                 ret = nouveau_channel_idle(drm->channel);
 730                 if (ret)
 731                         goto fail_display;
 732         }
 733
 734         NV_DEBUG(drm, "suspending fence...\n");
 735         if (drm->fence && nouveau_fence(drm)->suspend) {
 736                 if (!nouveau_fence(drm)->suspend(drm)) {
 737                         ret = -ENOMEM;
 738                         goto fail_display;
 739                 }
 740         }
 741
 742         NV_DEBUG(drm, "suspending object tree...\n");
 743         ret = nvif_client_suspend(&drm->master.base);
 744         if (ret)
 745                 goto fail_client;
 746
 747         return 0;
 748
 749 fail_client:
 750         if (drm->fence && nouveau_fence(drm)->resume)
 751                 nouveau_fence(drm)->resume(drm);
 752
 753 fail_display:
 754         if (dev->mode_config.num_crtc) {
 755                 NV_DEBUG(drm, "resuming display...\n");
 756                 nouveau_display_resume(dev, runtime);
 757         }
 758         return ret;
 759 }
 760
 761 static int
 762 nouveau_do_resume(struct drm_device *dev, bool runtime)
 763 {
 764         struct nouveau_drm *drm = nouveau_drm(dev);
 765
 766         NV_DEBUG(drm, "resuming object tree...\n");
 767         nvif_client_resume(&drm->master.base);
 768
 769         NV_DEBUG(drm, "resuming fence...\n");
 770         if (drm->fence && nouveau_fence(drm)->resume)
 771                 nouveau_fence(drm)->resume(drm);
 772
 773         nouveau_run_vbios_init(dev);
 774
 775         if (dev->mode_config.num_crtc) {
 776                 NV_DEBUG(drm, "resuming display...\n");
 777                 nouveau_display_resume(dev, runtime);
 778                 NV_DEBUG(drm, "resuming console...\n");
 779                 nouveau_fbcon_set_suspend(dev, 0);
 780         }
 781
 782         nouveau_led_resume(dev);
 783
 784         return 0;
 785 }
 786
 787 int
 788 nouveau_pmops_suspend(struct device *dev)
 789 {
 790         struct pci_dev *pdev = to_pci_dev(dev);
 791         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 792         int ret;
 793
 794         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 795             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 796                 return 0;
 797
 798         ret = nouveau_do_suspend(drm_dev, false);
 799         if (ret)
 800                 return ret;
 801
 802         pci_save_state(pdev);
 803         pci_disable_device(pdev);
 804         pci_set_power_state(pdev, PCI_D3hot);
 805         udelay(200);
 806         return 0;
 807 }
 808
 809 int
 810 nouveau_pmops_resume(struct device *dev)
 811 {
 812         struct pci_dev *pdev = to_pci_dev(dev);
 813         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 814         int ret;
 815
 816         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 817             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 818                 return 0;
 819
 820         pci_set_power_state(pdev, PCI_D0);
 821         pci_restore_state(pdev);
 822         ret = pci_enable_device(pdev);
 823         if (ret)
 824                 return ret;
 825         pci_set_master(pdev);
 826
 827         ret = nouveau_do_resume(drm_dev, false);
 828
 829         /* Monitors may have been connected / disconnected during suspend */
 830         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 831
 832         return ret;
 833 }
 834
 835 static int
 836 nouveau_pmops_freeze(struct device *dev)
 837 {
 838         struct pci_dev *pdev = to_pci_dev(dev);
 839         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 840         return nouveau_do_suspend(drm_dev, false);
 841 }
 842
 843 static int
 844 nouveau_pmops_thaw(struct device *dev)
 845 {
 846         struct pci_dev *pdev = to_pci_dev(dev);
 847         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 848         return nouveau_do_resume(drm_dev, false);
 849 }
 850
 851 bool
 852 nouveau_pmops_runtime(void)
 853 {
 854         if (nouveau_runtime_pm == -1)
 855                 return nouveau_is_optimus() || nouveau_is_v1_dsm();
 856         return nouveau_runtime_pm == 1;
 857 }
 858
 859 static int
 860 nouveau_pmops_runtime_suspend(struct device *dev)
 861 {
 862         struct pci_dev *pdev = to_pci_dev(dev);
 863         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 864         int ret;
 865
 866         if (!nouveau_pmops_runtime()) {
 867                 pm_runtime_forbid(dev);
 868                 return -EBUSY;
 869         }
 870
 871         nouveau_switcheroo_optimus_dsm();
 872         ret = nouveau_do_suspend(drm_dev, true);
 873         pci_save_state(pdev);
 874         pci_disable_device(pdev);
 875         pci_ignore_hotplug(pdev);
 876         pci_set_power_state(pdev, PCI_D3cold);
 877         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 878         return ret;
 879 }
 880
 881 static int
 882 nouveau_pmops_runtime_resume(struct device *dev)
 883 {
 884         struct pci_dev *pdev = to_pci_dev(dev);
 885         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 886         struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
 887         int ret;
 888
 889         if (!nouveau_pmops_runtime()) {
 890                 pm_runtime_forbid(dev);
 891                 return -EBUSY;
 892         }
 893
 894         pci_set_power_state(pdev, PCI_D0);
 895         pci_restore_state(pdev);
 896         ret = pci_enable_device(pdev);
 897         if (ret)
 898                 return ret;
 899         pci_set_master(pdev);
 900
 901         ret = nouveau_do_resume(drm_dev, true);
 902
 903         /* do magic */
 904         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 905         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 906
 907         /* Monitors may have been connected / disconnected during suspend */
 908         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 909
 910         return ret;
 911 }
 912
 913 static int
 914 nouveau_pmops_runtime_idle(struct device *dev)
 915 {
 916         if (!nouveau_pmops_runtime()) {
 917                 pm_runtime_forbid(dev);
 918                 return -EBUSY;
 919         }
 920
 921         pm_runtime_mark_last_busy(dev);
 922         pm_runtime_autosuspend(dev);
 923         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 924         return 1;
 925 }
 926
 927 static int
 928 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 929 {
 930         struct nouveau_drm *drm = nouveau_drm(dev);
 931         struct nouveau_cli *cli;
 932         char name[32], tmpname[TASK_COMM_LEN];
 933         int ret;
 934
 935         /* need to bring up power immediately if opening device */
 936         ret = pm_runtime_get_sync(dev->dev);
 937         if (ret < 0 && ret != -EACCES)
 938                 return ret;
 939
 940         get_task_comm(tmpname, current);
 941         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 942
 943         if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) {
 944                 ret = -ENOMEM;
 945                 goto done;
 946         }
 947
 948         ret = nouveau_cli_init(drm, name, cli);
 949         if (ret)
 950                 goto done;
 951
 952         cli->base.super = false;
 953
 954         fpriv->driver_priv = cli;
 955
 956         mutex_lock(&drm->client.mutex);
 957         list_add(&cli->head, &drm->clients);
 958         mutex_unlock(&drm->client.mutex);
 959
 960 done:
 961         if (ret && cli) {
 962                 nouveau_cli_fini(cli);
 963                 kfree(cli);
 964         }
 965
 966         pm_runtime_mark_last_busy(dev->dev);
 967         pm_runtime_put_autosuspend(dev->dev);
 968         return ret;
 969 }
 970
 971 static void
 972 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 973 {
 974         struct nouveau_cli *cli = nouveau_cli(fpriv);
 975         struct nouveau_drm *drm = nouveau_drm(dev);
 976
 977         pm_runtime_get_sync(dev->dev);
 978
 979         mutex_lock(&cli->mutex);
 980         if (cli->abi16)
 981                 nouveau_abi16_fini(cli->abi16);
 982         mutex_unlock(&cli->mutex);
 983
 984         mutex_lock(&drm->client.mutex);
 985         list_del(&cli->head);
 986         mutex_unlock(&drm->client.mutex);
 987
 988         nouveau_cli_fini(cli);
 989         kfree(cli);
 990         pm_runtime_mark_last_busy(dev->dev);
 991         pm_runtime_put_autosuspend(dev->dev);
 992 }
 993
 994 static const struct drm_ioctl_desc
 995 nouveau_ioctls[] = {
 996         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 997         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 998         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 999         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
1000         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
1001         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
1002         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
1003         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
1004         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
1005         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
1006         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
1007         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
1008 };
1009
1010 long
1011 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1012 {
1013         struct drm_file *filp = file->private_data;
1014         struct drm_device *dev = filp->minor->dev;
1015         long ret;
1016
1017         ret = pm_runtime_get_sync(dev->dev);
1018         if (ret < 0 && ret != -EACCES)
1019                 return ret;
1020
1021         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
1022         case DRM_NOUVEAU_NVIF:
1023                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
1024                 break;
1025         default:
1026                 ret = drm_ioctl(file, cmd, arg);
1027                 break;
1028         }
1029
1030         pm_runtime_mark_last_busy(dev->dev);
1031         pm_runtime_put_autosuspend(dev->dev);
1032         return ret;
1033 }
1034
1035 static const struct file_operations
1036 nouveau_driver_fops = {
1037         .owner = THIS_MODULE,
1038         .open = drm_open,
1039         .release = drm_release,
1040         .unlocked_ioctl = nouveau_drm_ioctl,
1041         .mmap = nouveau_ttm_mmap,
1042         .poll = drm_poll,
1043         .read = drm_read,
1044 #if defined(CONFIG_COMPAT)
1045         .compat_ioctl = nouveau_compat_ioctl,
1046 #endif
1047         .llseek = noop_llseek,
1048 };
1049
1050 static struct drm_driver
1051 driver_stub = {
1052         .driver_features =
1053                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
1054                 DRIVER_KMS_LEGACY_CONTEXT,
1055
1056         .open = nouveau_drm_open,
1057         .postclose = nouveau_drm_postclose,
1058         .lastclose = nouveau_vga_lastclose,
1059
1060 #if defined(CONFIG_DEBUG_FS)
1061         .debugfs_init = nouveau_drm_debugfs_init,
1062 #endif
1063
1064         .enable_vblank = nouveau_display_vblank_enable,
1065         .disable_vblank = nouveau_display_vblank_disable,
1066         .get_scanout_position = nouveau_display_scanoutpos,
1067         .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
1068
1069         .ioctls = nouveau_ioctls,
1070         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
1071         .fops = &nouveau_driver_fops,
1072
1073         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
1074         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
1075         .gem_prime_export = drm_gem_prime_export,
1076         .gem_prime_import = drm_gem_prime_import,
1077         .gem_prime_pin = nouveau_gem_prime_pin,
1078         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
1079         .gem_prime_unpin = nouveau_gem_prime_unpin,
1080         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
1081         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1082         .gem_prime_vmap = nouveau_gem_prime_vmap,
1083         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1084
1085         .gem_free_object_unlocked = nouveau_gem_object_del,
1086         .gem_open_object = nouveau_gem_object_open,
1087         .gem_close_object = nouveau_gem_object_close,
1088
1089         .dumb_create = nouveau_display_dumb_create,
1090         .dumb_map_offset = nouveau_display_dumb_map_offset,
1091
1092         .name = DRIVER_NAME,
1093         .desc = DRIVER_DESC,
1094 #ifdef GIT_REVISION
1095         .date = GIT_REVISION,
1096 #else
1097         .date = DRIVER_DATE,
1098 #endif
1099         .major = DRIVER_MAJOR,
1100         .minor = DRIVER_MINOR,
1101         .patchlevel = DRIVER_PATCHLEVEL,
1102 };
1103
1104 static struct pci_device_id
1105 nouveau_drm_pci_table[] = {
1106         {
1107                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1108                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1109                 .class_mask  = 0xff << 16,
1110         },
1111         {
1112                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1113                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1114                 .class_mask  = 0xff << 16,
1115         },
1116         {}
1117 };
1118
1119 static void nouveau_display_options(void)
1120 {
1121         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1122
1123         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1124         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1125         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1126         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1127         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1128         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1129         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1130         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1131         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1132         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1133         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1134 }
1135
1136 static const struct dev_pm_ops nouveau_pm_ops = {
1137         .suspend = nouveau_pmops_suspend,
1138         .resume = nouveau_pmops_resume,
1139         .freeze = nouveau_pmops_freeze,
1140         .thaw = nouveau_pmops_thaw,
1141         .poweroff = nouveau_pmops_freeze,
1142         .restore = nouveau_pmops_resume,
1143         .runtime_suspend = nouveau_pmops_runtime_suspend,
1144         .runtime_resume = nouveau_pmops_runtime_resume,
1145         .runtime_idle = nouveau_pmops_runtime_idle,
1146 };
1147
1148 static struct pci_driver
1149 nouveau_drm_pci_driver = {
1150         .name = "nouveau",
1151         .id_table = nouveau_drm_pci_table,
1152         .probe = nouveau_drm_probe,
1153         .remove = nouveau_drm_remove,
1154         .driver.pm = &nouveau_pm_ops,
1155 };
1156
1157 struct drm_device *
1158 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1159                                struct platform_device *pdev,
1160                                struct nvkm_device **pdevice)
1161 {
1162         struct drm_device *drm;
1163         int err;
1164
1165         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1166                                     true, true, ~0ULL, pdevice);
1167         if (err)
1168                 goto err_free;
1169
1170         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1171         if (IS_ERR(drm)) {
1172                 err = PTR_ERR(drm);
1173                 goto err_free;
1174         }
1175
1176         err = nouveau_drm_device_init(drm);
1177         if (err)
1178                 goto err_put;
1179
1180         platform_set_drvdata(pdev, drm);
1181
1182         return drm;
1183
1184 err_put:
1185         drm_dev_put(drm);
1186 err_free:
1187         nvkm_device_del(pdevice);
1188
1189         return ERR_PTR(err);
1190 }
1191
1192 static int __init
1193 nouveau_drm_init(void)
1194 {
1195         driver_pci = driver_stub;
1196         driver_platform = driver_stub;
1197
1198         nouveau_display_options();
1199
1200         if (nouveau_modeset == -1) {
1201                 if (vgacon_text_force())
1202                         nouveau_modeset = 0;
1203         }
1204
1205         if (!nouveau_modeset)
1206                 return 0;
1207
1208 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1209         platform_driver_register(&nouveau_platform_driver);
1210 #endif
1211
1212         nouveau_register_dsm_handler();
1213         nouveau_backlight_ctor();
1214
1215 #ifdef CONFIG_PCI
1216         return pci_register_driver(&nouveau_drm_pci_driver);
1217 #else
1218         return 0;
1219 #endif
1220 }
1221
1222 static void __exit
1223 nouveau_drm_exit(void)
1224 {
1225         if (!nouveau_modeset)
1226                 return;
1227
1228 #ifdef CONFIG_PCI
1229         pci_unregister_driver(&nouveau_drm_pci_driver);
1230 #endif
1231         nouveau_backlight_dtor();
1232         nouveau_unregister_dsm_handler();
1233
1234 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1235         platform_driver_unregister(&nouveau_platform_driver);
1236 #endif
1237 }
1238
1239 module_init(nouveau_drm_init);
1240 module_exit(nouveau_drm_exit);
1241
1242 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1243 MODULE_AUTHOR(DRIVER_AUTHOR);
1244 MODULE_DESCRIPTION(DRIVER_DESC);
1245 MODULE_LICENSE("GPL and additional rights");