kernel/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 "drmP.h"
  33 #include "drm_crtc_helper.h"
  34
  35 #include <core/gpuobj.h>
  36 #include <core/option.h>
  37 #include <core/pci.h>
  38 #include <core/tegra.h>
  39
  40 #include "nouveau_drm.h"
  41 #include "nouveau_dma.h"
  42 #include "nouveau_ttm.h"
  43 #include "nouveau_gem.h"
  44 #include "nouveau_vga.h"
  45 #include "nouveau_sysfs.h"
  46 #include "nouveau_hwmon.h"
  47 #include "nouveau_acpi.h"
  48 #include "nouveau_bios.h"
  49 #include "nouveau_ioctl.h"
  50 #include "nouveau_abi16.h"
  51 #include "nouveau_fbcon.h"
  52 #include "nouveau_fence.h"
  53 #include "nouveau_debugfs.h"
  54 #include "nouveau_usif.h"
  55 #include "nouveau_connector.h"
  56 #include "nouveau_platform.h"
  57
  58 MODULE_PARM_DESC(config, "option string to pass to driver core");
  59 static char *nouveau_config;
  60 module_param_named(config, nouveau_config, charp, 0400);
  61
  62 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  63 static char *nouveau_debug;
  64 module_param_named(debug, nouveau_debug, charp, 0400);
  65
  66 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  67 static int nouveau_noaccel = 0;
  68 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  69
  70 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  71                           "0 = disabled, 1 = enabled, 2 = headless)");
  72 int nouveau_modeset = -1;
  73 module_param_named(modeset, nouveau_modeset, int, 0400);
  74
  75 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  76 int nouveau_runtime_pm = -1;
  77 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  78
  79 static struct drm_driver driver_stub;
  80 static struct drm_driver driver_pci;
  81 static struct drm_driver driver_platform;
  82
  83 static u64
  84 nouveau_pci_name(struct pci_dev *pdev)
  85 {
  86         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  87         name |= pdev->bus->number << 16;
  88         name |= PCI_SLOT(pdev->devfn) << 8;
  89         return name | PCI_FUNC(pdev->devfn);
  90 }
  91
  92 static u64
  93 nouveau_platform_name(struct platform_device *platformdev)
  94 {
  95         return platformdev->id;
  96 }
  97
  98 static u64
  99 nouveau_name(struct drm_device *dev)
 100 {
 101         if (dev->pdev)
 102                 return nouveau_pci_name(dev->pdev);
 103         else
 104                 return nouveau_platform_name(dev->platformdev);
 105 }
 106
 107 static int
 108 nouveau_cli_create(struct drm_device *dev, const char *sname,
 109                    int size, void **pcli)
 110 {
 111         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 112         int ret;
 113         if (cli) {
 114                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
 115                 cli->dev = dev;
 116
 117                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
 118                                        nouveau_config, nouveau_debug,
 119                                        &cli->base);
 120                 if (ret == 0) {
 121                         mutex_init(&cli->mutex);
 122                         usif_client_init(cli);
 123                 }
 124                 return ret;
 125         }
 126         return -ENOMEM;
 127 }
 128
 129 static void
 130 nouveau_cli_destroy(struct nouveau_cli *cli)
 131 {
 132         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 133         nvif_client_fini(&cli->base);
 134         usif_client_fini(cli);
 135         kfree(cli);
 136 }
 137
 138 static void
 139 nouveau_accel_fini(struct nouveau_drm *drm)
 140 {
 141         nouveau_channel_idle(drm->channel);
 142         nvif_object_fini(&drm->ntfy);
 143         nvkm_gpuobj_del(&drm->notify);
 144         nvif_notify_fini(&drm->flip);
 145         nvif_object_fini(&drm->nvsw);
 146         nouveau_channel_del(&drm->channel);
 147
 148         nouveau_channel_idle(drm->cechan);
 149         nvif_object_fini(&drm->ttm.copy);
 150         nouveau_channel_del(&drm->cechan);
 151
 152         if (drm->fence)
 153                 nouveau_fence(drm)->dtor(drm);
 154 }
 155
 156 static void
 157 nouveau_accel_init(struct nouveau_drm *drm)
 158 {
 159         struct nvif_device *device = &drm->device;
 160         struct nvif_sclass *sclass;
 161         u32 arg0, arg1;
 162         int ret, i, n;
 163
 164         if (nouveau_noaccel)
 165                 return;
 166
 167         /* initialise synchronisation routines */
 168         /*XXX: this is crap, but the fence/channel stuff is a little
 169          *     backwards in some places.  this will be fixed.
 170          */
 171         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 172         if (ret < 0)
 173                 return;
 174
 175         for (ret = -ENOSYS, i = 0; i < n; i++) {
 176                 switch (sclass[i].oclass) {
 177                 case NV03_CHANNEL_DMA:
 178                         ret = nv04_fence_create(drm);
 179                         break;
 180                 case NV10_CHANNEL_DMA:
 181                         ret = nv10_fence_create(drm);
 182                         break;
 183                 case NV17_CHANNEL_DMA:
 184                 case NV40_CHANNEL_DMA:
 185                         ret = nv17_fence_create(drm);
 186                         break;
 187                 case NV50_CHANNEL_GPFIFO:
 188                         ret = nv50_fence_create(drm);
 189                         break;
 190                 case G82_CHANNEL_GPFIFO:
 191                         ret = nv84_fence_create(drm);
 192                         break;
 193                 case FERMI_CHANNEL_GPFIFO:
 194                 case KEPLER_CHANNEL_GPFIFO_A:
 195                 case MAXWELL_CHANNEL_GPFIFO_A:
 196                         ret = nvc0_fence_create(drm);
 197                         break;
 198                 default:
 199                         break;
 200                 }
 201         }
 202
 203         nvif_object_sclass_put(&sclass);
 204         if (ret) {
 205                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 206                 nouveau_accel_fini(drm);
 207                 return;
 208         }
 209
 210         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 211                 ret = nouveau_channel_new(drm, &drm->device,
 212                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 213                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 214                                           0, &drm->cechan);
 215                 if (ret)
 216                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 217
 218                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 219                 arg1 = 1;
 220         } else
 221         if (device->info.chipset >= 0xa3 &&
 222             device->info.chipset != 0xaa &&
 223             device->info.chipset != 0xac) {
 224                 ret = nouveau_channel_new(drm, &drm->device,
 225                                           NvDmaFB, NvDmaTT, &drm->cechan);
 226                 if (ret)
 227                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 228
 229                 arg0 = NvDmaFB;
 230                 arg1 = NvDmaTT;
 231         } else {
 232                 arg0 = NvDmaFB;
 233                 arg1 = NvDmaTT;
 234         }
 235
 236         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 237         if (ret) {
 238                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 239                 nouveau_accel_fini(drm);
 240                 return;
 241         }
 242
 243         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 244                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 245         if (ret == 0) {
 246                 ret = RING_SPACE(drm->channel, 2);
 247                 if (ret == 0) {
 248                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 249                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 250                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 251                         } else
 252                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 253                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 254                                 OUT_RING  (drm->channel, 0x001f0000);
 255                         }
 256                 }
 257
 258                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 259                                        false, NVSW_NTFY_UEVENT, NULL, 0, 0,
 260                                        &drm->flip);
 261                 if (ret == 0)
 262                         ret = nvif_notify_get(&drm->flip);
 263                 if (ret) {
 264                         nouveau_accel_fini(drm);
 265                         return;
 266                 }
 267         }
 268
 269         if (ret) {
 270                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 271                 nouveau_accel_fini(drm);
 272                 return;
 273         }
 274
 275         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 276                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 277                                       NULL, &drm->notify);
 278                 if (ret) {
 279                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 280                         nouveau_accel_fini(drm);
 281                         return;
 282                 }
 283
 284                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 285                                        NV_DMA_IN_MEMORY,
 286                                        &(struct nv_dma_v0) {
 287                                                 .target = NV_DMA_V0_TARGET_VRAM,
 288                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 289                                                 .start = drm->notify->addr,
 290                                                 .limit = drm->notify->addr + 31
 291                                        }, sizeof(struct nv_dma_v0),
 292                                        &drm->ntfy);
 293                 if (ret) {
 294                         nouveau_accel_fini(drm);
 295                         return;
 296                 }
 297         }
 298
 299
 300         nouveau_bo_move_init(drm);
 301 }
 302
 303 static int nouveau_drm_probe(struct pci_dev *pdev,
 304                              const struct pci_device_id *pent)
 305 {
 306         struct nvkm_device *device;
 307         struct apertures_struct *aper;
 308         bool boot = false;
 309         int ret;
 310
 311         /* remove conflicting drivers (vesafb, efifb etc) */
 312         aper = alloc_apertures(3);
 313         if (!aper)
 314                 return -ENOMEM;
 315
 316         aper->ranges[0].base = pci_resource_start(pdev, 1);
 317         aper->ranges[0].size = pci_resource_len(pdev, 1);
 318         aper->count = 1;
 319
 320         if (pci_resource_len(pdev, 2)) {
 321                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 322                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 323                 aper->count++;
 324         }
 325
 326         if (pci_resource_len(pdev, 3)) {
 327                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 328                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 329                 aper->count++;
 330         }
 331
 332 #ifdef CONFIG_X86
 333         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 334 #endif
 335         if (nouveau_modeset != 2)
 336                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 337         kfree(aper);
 338
 339         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 340                                   true, true, ~0ULL, &device);
 341         if (ret)
 342                 return ret;
 343
 344         pci_set_master(pdev);
 345
 346         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 347         if (ret) {
 348                 nvkm_device_del(&device);
 349                 return ret;
 350         }
 351
 352         return 0;
 353 }
 354
 355 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 356
 357 static void
 358 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 359 {
 360         struct pci_dev *pdev = drm->dev->pdev;
 361
 362         if (!pdev) {
 363                 DRM_INFO("not a PCI device; no HDMI\n");
 364                 drm->hdmi_device = NULL;
 365                 return;
 366         }
 367
 368         /* subfunction one is a hdmi audio device? */
 369         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 370                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 371
 372         if (!drm->hdmi_device) {
 373                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 374                 return;
 375         }
 376
 377         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 378                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 379                 pci_dev_put(drm->hdmi_device);
 380                 drm->hdmi_device = NULL;
 381                 return;
 382         }
 383 }
 384
 385 static int
 386 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 387 {
 388         struct nouveau_drm *drm;
 389         int ret;
 390
 391         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 392         if (ret)
 393                 return ret;
 394
 395         dev->dev_private = drm;
 396         drm->dev = dev;
 397         nvxx_client(&drm->client.base)->debug =
 398                 nvkm_dbgopt(nouveau_debug, "DRM");
 399
 400         INIT_LIST_HEAD(&drm->clients);
 401         spin_lock_init(&drm->tile.lock);
 402
 403         nouveau_get_hdmi_dev(drm);
 404
 405         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 406                                &(struct nv_device_v0) {
 407                                         .device = ~0,
 408                                }, sizeof(struct nv_device_v0),
 409                                &drm->device);
 410         if (ret)
 411                 goto fail_device;
 412
 413         dev->irq_enabled = true;
 414
 415         /* workaround an odd issue on nvc1 by disabling the device's
 416          * nosnoop capability.  hopefully won't cause issues until a
 417          * better fix is found - assuming there is one...
 418          */
 419         if (drm->device.info.chipset == 0xc1)
 420                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 421
 422         nouveau_vga_init(drm);
 423
 424         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 425                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 426                                   0x1000, NULL, &drm->client.vm);
 427                 if (ret)
 428                         goto fail_device;
 429
 430                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 431         }
 432
 433         ret = nouveau_ttm_init(drm);
 434         if (ret)
 435                 goto fail_ttm;
 436
 437         ret = nouveau_bios_init(dev);
 438         if (ret)
 439                 goto fail_bios;
 440
 441         ret = nouveau_display_create(dev);
 442         if (ret)
 443                 goto fail_dispctor;
 444
 445         if (dev->mode_config.num_crtc) {
 446                 ret = nouveau_display_init(dev);
 447                 if (ret)
 448                         goto fail_dispinit;
 449         }
 450
 451         nouveau_sysfs_init(dev);
 452         nouveau_hwmon_init(dev);
 453         nouveau_accel_init(drm);
 454         nouveau_fbcon_init(dev);
 455
 456         if (nouveau_runtime_pm != 0) {
 457                 pm_runtime_use_autosuspend(dev->dev);
 458                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 459                 pm_runtime_set_active(dev->dev);
 460                 pm_runtime_allow(dev->dev);
 461                 pm_runtime_mark_last_busy(dev->dev);
 462                 pm_runtime_put(dev->dev);
 463         }
 464         return 0;
 465
 466 fail_dispinit:
 467         nouveau_display_destroy(dev);
 468 fail_dispctor:
 469         nouveau_bios_takedown(dev);
 470 fail_bios:
 471         nouveau_ttm_fini(drm);
 472 fail_ttm:
 473         nouveau_vga_fini(drm);
 474 fail_device:
 475         nvif_device_fini(&drm->device);
 476         nouveau_cli_destroy(&drm->client);
 477         return ret;
 478 }
 479
 480 static int
 481 nouveau_drm_unload(struct drm_device *dev)
 482 {
 483         struct nouveau_drm *drm = nouveau_drm(dev);
 484
 485         pm_runtime_get_sync(dev->dev);
 486         nouveau_fbcon_fini(dev);
 487         nouveau_accel_fini(drm);
 488         nouveau_hwmon_fini(dev);
 489         nouveau_sysfs_fini(dev);
 490
 491         if (dev->mode_config.num_crtc)
 492                 nouveau_display_fini(dev);
 493         nouveau_display_destroy(dev);
 494
 495         nouveau_bios_takedown(dev);
 496
 497         nouveau_ttm_fini(drm);
 498         nouveau_vga_fini(drm);
 499
 500         nvif_device_fini(&drm->device);
 501         if (drm->hdmi_device)
 502                 pci_dev_put(drm->hdmi_device);
 503         nouveau_cli_destroy(&drm->client);
 504         return 0;
 505 }
 506
 507 void
 508 nouveau_drm_device_remove(struct drm_device *dev)
 509 {
 510         struct nouveau_drm *drm = nouveau_drm(dev);
 511         struct nvkm_client *client;
 512         struct nvkm_device *device;
 513
 514         dev->irq_enabled = false;
 515         client = nvxx_client(&drm->client.base);
 516         device = nvkm_device_find(client->device);
 517         drm_put_dev(dev);
 518
 519         nvkm_device_del(&device);
 520 }
 521
 522 static void
 523 nouveau_drm_remove(struct pci_dev *pdev)
 524 {
 525         struct drm_device *dev = pci_get_drvdata(pdev);
 526
 527         nouveau_drm_device_remove(dev);
 528 }
 529
 530 static int
 531 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 532 {
 533         struct nouveau_drm *drm = nouveau_drm(dev);
 534         struct nouveau_cli *cli;
 535         int ret;
 536
 537         if (dev->mode_config.num_crtc) {
 538                 NV_INFO(drm, "suspending console...\n");
 539                 nouveau_fbcon_set_suspend(dev, 1);
 540                 NV_INFO(drm, "suspending display...\n");
 541                 ret = nouveau_display_suspend(dev, runtime);
 542                 if (ret)
 543                         return ret;
 544         }
 545
 546         NV_INFO(drm, "evicting buffers...\n");
 547         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 548
 549         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 550         if (drm->cechan) {
 551                 ret = nouveau_channel_idle(drm->cechan);
 552                 if (ret)
 553                         goto fail_display;
 554         }
 555
 556         if (drm->channel) {
 557                 ret = nouveau_channel_idle(drm->channel);
 558                 if (ret)
 559                         goto fail_display;
 560         }
 561
 562         NV_INFO(drm, "suspending client object trees...\n");
 563         if (drm->fence && nouveau_fence(drm)->suspend) {
 564                 if (!nouveau_fence(drm)->suspend(drm)) {
 565                         ret = -ENOMEM;
 566                         goto fail_display;
 567                 }
 568         }
 569
 570         list_for_each_entry(cli, &drm->clients, head) {
 571                 ret = nvif_client_suspend(&cli->base);
 572                 if (ret)
 573                         goto fail_client;
 574         }
 575
 576         NV_INFO(drm, "suspending kernel object tree...\n");
 577         ret = nvif_client_suspend(&drm->client.base);
 578         if (ret)
 579                 goto fail_client;
 580
 581         return 0;
 582
 583 fail_client:
 584         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 585                 nvif_client_resume(&cli->base);
 586         }
 587
 588         if (drm->fence && nouveau_fence(drm)->resume)
 589                 nouveau_fence(drm)->resume(drm);
 590
 591 fail_display:
 592         if (dev->mode_config.num_crtc) {
 593                 NV_INFO(drm, "resuming display...\n");
 594                 nouveau_display_resume(dev, runtime);
 595         }
 596         return ret;
 597 }
 598
 599 static int
 600 nouveau_do_resume(struct drm_device *dev, bool runtime)
 601 {
 602         struct nouveau_drm *drm = nouveau_drm(dev);
 603         struct nouveau_cli *cli;
 604
 605         NV_INFO(drm, "resuming kernel object tree...\n");
 606         nvif_client_resume(&drm->client.base);
 607
 608         NV_INFO(drm, "resuming client object trees...\n");
 609         if (drm->fence && nouveau_fence(drm)->resume)
 610                 nouveau_fence(drm)->resume(drm);
 611
 612         list_for_each_entry(cli, &drm->clients, head) {
 613                 nvif_client_resume(&cli->base);
 614         }
 615
 616         nouveau_run_vbios_init(dev);
 617
 618         if (dev->mode_config.num_crtc) {
 619                 NV_INFO(drm, "resuming display...\n");
 620                 nouveau_display_resume(dev, runtime);
 621                 NV_INFO(drm, "resuming console...\n");
 622                 nouveau_fbcon_set_suspend(dev, 0);
 623         }
 624
 625         return 0;
 626 }
 627
 628 int
 629 nouveau_pmops_suspend(struct device *dev)
 630 {
 631         struct pci_dev *pdev = to_pci_dev(dev);
 632         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 633         int ret;
 634
 635         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 636             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 637                 return 0;
 638
 639         ret = nouveau_do_suspend(drm_dev, false);
 640         if (ret)
 641                 return ret;
 642
 643         pci_save_state(pdev);
 644         pci_disable_device(pdev);
 645         pci_set_power_state(pdev, PCI_D3hot);
 646         udelay(200);
 647         return 0;
 648 }
 649
 650 int
 651 nouveau_pmops_resume(struct device *dev)
 652 {
 653         struct pci_dev *pdev = to_pci_dev(dev);
 654         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 655         int ret;
 656
 657         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 658             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 659                 return 0;
 660
 661         pci_set_power_state(pdev, PCI_D0);
 662         pci_restore_state(pdev);
 663         ret = pci_enable_device(pdev);
 664         if (ret)
 665                 return ret;
 666         pci_set_master(pdev);
 667
 668         return nouveau_do_resume(drm_dev, false);
 669 }
 670
 671 static int
 672 nouveau_pmops_freeze(struct device *dev)
 673 {
 674         struct pci_dev *pdev = to_pci_dev(dev);
 675         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 676         return nouveau_do_suspend(drm_dev, false);
 677 }
 678
 679 static int
 680 nouveau_pmops_thaw(struct device *dev)
 681 {
 682         struct pci_dev *pdev = to_pci_dev(dev);
 683         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 684         return nouveau_do_resume(drm_dev, false);
 685 }
 686
 687 static int
 688 nouveau_pmops_runtime_suspend(struct device *dev)
 689 {
 690         struct pci_dev *pdev = to_pci_dev(dev);
 691         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 692         int ret;
 693
 694         if (nouveau_runtime_pm == 0) {
 695                 pm_runtime_forbid(dev);
 696                 return -EBUSY;
 697         }
 698
 699         /* are we optimus enabled? */
 700         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 701                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 702                 pm_runtime_forbid(dev);
 703                 return -EBUSY;
 704         }
 705
 706         drm_kms_helper_poll_disable(drm_dev);
 707         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 708         nouveau_switcheroo_optimus_dsm();
 709         ret = nouveau_do_suspend(drm_dev, true);
 710         pci_save_state(pdev);
 711         pci_disable_device(pdev);
 712         pci_ignore_hotplug(pdev);
 713         pci_set_power_state(pdev, PCI_D3cold);
 714         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 715         return ret;
 716 }
 717
 718 static int
 719 nouveau_pmops_runtime_resume(struct device *dev)
 720 {
 721         struct pci_dev *pdev = to_pci_dev(dev);
 722         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 723         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 724         int ret;
 725
 726         if (nouveau_runtime_pm == 0)
 727                 return -EINVAL;
 728
 729         pci_set_power_state(pdev, PCI_D0);
 730         pci_restore_state(pdev);
 731         ret = pci_enable_device(pdev);
 732         if (ret)
 733                 return ret;
 734         pci_set_master(pdev);
 735
 736         ret = nouveau_do_resume(drm_dev, true);
 737         drm_kms_helper_poll_enable(drm_dev);
 738         /* do magic */
 739         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 740         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 741         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 742         return ret;
 743 }
 744
 745 static int
 746 nouveau_pmops_runtime_idle(struct device *dev)
 747 {
 748         struct pci_dev *pdev = to_pci_dev(dev);
 749         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 750         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 751         struct drm_crtc *crtc;
 752
 753         if (nouveau_runtime_pm == 0) {
 754                 pm_runtime_forbid(dev);
 755                 return -EBUSY;
 756         }
 757
 758         /* are we optimus enabled? */
 759         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 760                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 761                 pm_runtime_forbid(dev);
 762                 return -EBUSY;
 763         }
 764
 765         /* if we have a hdmi audio device - make sure it has a driver loaded */
 766         if (drm->hdmi_device) {
 767                 if (!drm->hdmi_device->driver) {
 768                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 769                         pm_runtime_mark_last_busy(dev);
 770                         return -EBUSY;
 771                 }
 772         }
 773
 774         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 775                 if (crtc->enabled) {
 776                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 777                         return -EBUSY;
 778                 }
 779         }
 780         pm_runtime_mark_last_busy(dev);
 781         pm_runtime_autosuspend(dev);
 782         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 783         return 1;
 784 }
 785
 786 static int
 787 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 788 {
 789         struct nouveau_drm *drm = nouveau_drm(dev);
 790         struct nouveau_cli *cli;
 791         char name[32], tmpname[TASK_COMM_LEN];
 792         int ret;
 793
 794         /* need to bring up power immediately if opening device */
 795         ret = pm_runtime_get_sync(dev->dev);
 796         if (ret < 0 && ret != -EACCES)
 797                 return ret;
 798
 799         get_task_comm(tmpname, current);
 800         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 801
 802         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 803
 804         if (ret)
 805                 goto out_suspend;
 806
 807         cli->base.super = false;
 808
 809         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 810                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 811                                   0x1000, NULL, &cli->vm);
 812                 if (ret) {
 813                         nouveau_cli_destroy(cli);
 814                         goto out_suspend;
 815                 }
 816
 817                 nvxx_client(&cli->base)->vm = cli->vm;
 818         }
 819
 820         fpriv->driver_priv = cli;
 821
 822         mutex_lock(&drm->client.mutex);
 823         list_add(&cli->head, &drm->clients);
 824         mutex_unlock(&drm->client.mutex);
 825
 826 out_suspend:
 827         pm_runtime_mark_last_busy(dev->dev);
 828         pm_runtime_put_autosuspend(dev->dev);
 829
 830         return ret;
 831 }
 832
 833 static void
 834 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 835 {
 836         struct nouveau_cli *cli = nouveau_cli(fpriv);
 837         struct nouveau_drm *drm = nouveau_drm(dev);
 838
 839         pm_runtime_get_sync(dev->dev);
 840
 841         mutex_lock(&cli->mutex);
 842         if (cli->abi16)
 843                 nouveau_abi16_fini(cli->abi16);
 844         mutex_unlock(&cli->mutex);
 845
 846         mutex_lock(&drm->client.mutex);
 847         list_del(&cli->head);
 848         mutex_unlock(&drm->client.mutex);
 849
 850 }
 851
 852 static void
 853 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 854 {
 855         struct nouveau_cli *cli = nouveau_cli(fpriv);
 856         nouveau_cli_destroy(cli);
 857         pm_runtime_mark_last_busy(dev->dev);
 858         pm_runtime_put_autosuspend(dev->dev);
 859 }
 860
 861 static const struct drm_ioctl_desc
 862 nouveau_ioctls[] = {
 863         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 864         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 865         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 866         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 867         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 868         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 869         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 870         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 871         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 872         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 873         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 874         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 875 };
 876
 877 long
 878 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 879 {
 880         struct drm_file *filp = file->private_data;
 881         struct drm_device *dev = filp->minor->dev;
 882         long ret;
 883
 884         ret = pm_runtime_get_sync(dev->dev);
 885         if (ret < 0 && ret != -EACCES)
 886                 return ret;
 887
 888         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 889         case DRM_NOUVEAU_NVIF:
 890                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 891                 break;
 892         default:
 893                 ret = drm_ioctl(file, cmd, arg);
 894                 break;
 895         }
 896
 897         pm_runtime_mark_last_busy(dev->dev);
 898         pm_runtime_put_autosuspend(dev->dev);
 899         return ret;
 900 }
 901
 902 static const struct file_operations
 903 nouveau_driver_fops = {
 904         .owner = THIS_MODULE,
 905         .open = drm_open,
 906         .release = drm_release,
 907         .unlocked_ioctl = nouveau_drm_ioctl,
 908         .mmap = nouveau_ttm_mmap,
 909         .poll = drm_poll,
 910         .read = drm_read,
 911 #if defined(CONFIG_COMPAT)
 912         .compat_ioctl = nouveau_compat_ioctl,
 913 #endif
 914         .llseek = noop_llseek,
 915 };
 916
 917 static struct drm_driver
 918 driver_stub = {
 919         .driver_features =
 920                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 921                 DRIVER_KMS_LEGACY_CONTEXT,
 922
 923         .load = nouveau_drm_load,
 924         .unload = nouveau_drm_unload,
 925         .open = nouveau_drm_open,
 926         .preclose = nouveau_drm_preclose,
 927         .postclose = nouveau_drm_postclose,
 928         .lastclose = nouveau_vga_lastclose,
 929
 930 #if defined(CONFIG_DEBUG_FS)
 931         .debugfs_init = nouveau_debugfs_init,
 932         .debugfs_cleanup = nouveau_debugfs_takedown,
 933 #endif
 934
 935         .get_vblank_counter = drm_vblank_no_hw_counter,
 936         .enable_vblank = nouveau_display_vblank_enable,
 937         .disable_vblank = nouveau_display_vblank_disable,
 938         .get_scanout_position = nouveau_display_scanoutpos,
 939         .get_vblank_timestamp = nouveau_display_vblstamp,
 940
 941         .ioctls = nouveau_ioctls,
 942         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 943         .fops = &nouveau_driver_fops,
 944
 945         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 946         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 947         .gem_prime_export = drm_gem_prime_export,
 948         .gem_prime_import = drm_gem_prime_import,
 949         .gem_prime_pin = nouveau_gem_prime_pin,
 950         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 951         .gem_prime_unpin = nouveau_gem_prime_unpin,
 952         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 953         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 954         .gem_prime_vmap = nouveau_gem_prime_vmap,
 955         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 956
 957         .gem_free_object = nouveau_gem_object_del,
 958         .gem_open_object = nouveau_gem_object_open,
 959         .gem_close_object = nouveau_gem_object_close,
 960
 961         .dumb_create = nouveau_display_dumb_create,
 962         .dumb_map_offset = nouveau_display_dumb_map_offset,
 963         .dumb_destroy = drm_gem_dumb_destroy,
 964
 965         .name = DRIVER_NAME,
 966         .desc = DRIVER_DESC,
 967 #ifdef GIT_REVISION
 968         .date = GIT_REVISION,
 969 #else
 970         .date = DRIVER_DATE,
 971 #endif
 972         .major = DRIVER_MAJOR,
 973         .minor = DRIVER_MINOR,
 974         .patchlevel = DRIVER_PATCHLEVEL,
 975 };
 976
 977 static struct pci_device_id
 978 nouveau_drm_pci_table[] = {
 979         {
 980                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 981                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 982                 .class_mask  = 0xff << 16,
 983         },
 984         {
 985                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 986                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 987                 .class_mask  = 0xff << 16,
 988         },
 989         {}
 990 };
 991
 992 static void nouveau_display_options(void)
 993 {
 994         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
 995
 996         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
 997         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
 998         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
 999         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1000         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1001         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1002         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1003         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1004         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1005         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1006         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1007 }
1008
1009 static const struct dev_pm_ops nouveau_pm_ops = {
1010         .suspend = nouveau_pmops_suspend,
1011         .resume = nouveau_pmops_resume,
1012         .freeze = nouveau_pmops_freeze,
1013         .thaw = nouveau_pmops_thaw,
1014         .poweroff = nouveau_pmops_freeze,
1015         .restore = nouveau_pmops_resume,
1016         .runtime_suspend = nouveau_pmops_runtime_suspend,
1017         .runtime_resume = nouveau_pmops_runtime_resume,
1018         .runtime_idle = nouveau_pmops_runtime_idle,
1019 };
1020
1021 static struct pci_driver
1022 nouveau_drm_pci_driver = {
1023         .name = "nouveau",
1024         .id_table = nouveau_drm_pci_table,
1025         .probe = nouveau_drm_probe,
1026         .remove = nouveau_drm_remove,
1027         .driver.pm = &nouveau_pm_ops,
1028 };
1029
1030 struct drm_device *
1031 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1032                                struct platform_device *pdev,
1033                                struct nvkm_device **pdevice)
1034 {
1035         struct drm_device *drm;
1036         int err;
1037
1038         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1039                                     true, true, ~0ULL, pdevice);
1040         if (err)
1041                 goto err_free;
1042
1043         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1044         if (!drm) {
1045                 err = -ENOMEM;
1046                 goto err_free;
1047         }
1048
1049         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1050         if (err < 0)
1051                 goto err_free;
1052
1053         drm->platformdev = pdev;
1054         platform_set_drvdata(pdev, drm);
1055
1056         return drm;
1057
1058 err_free:
1059         nvkm_device_del(pdevice);
1060
1061         return ERR_PTR(err);
1062 }
1063
1064 static int __init
1065 nouveau_drm_init(void)
1066 {
1067         driver_pci = driver_stub;
1068         driver_pci.set_busid = drm_pci_set_busid;
1069         driver_platform = driver_stub;
1070         driver_platform.set_busid = drm_platform_set_busid;
1071
1072         nouveau_display_options();
1073
1074         if (nouveau_modeset == -1) {
1075 #ifdef CONFIG_VGA_CONSOLE
1076                 if (vgacon_text_force())
1077                         nouveau_modeset = 0;
1078 #endif
1079         }
1080
1081         if (!nouveau_modeset)
1082                 return 0;
1083
1084 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1085         platform_driver_register(&nouveau_platform_driver);
1086 #endif
1087
1088         nouveau_register_dsm_handler();
1089         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1090 }
1091
1092 static void __exit
1093 nouveau_drm_exit(void)
1094 {
1095         if (!nouveau_modeset)
1096                 return;
1097
1098         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1099         nouveau_unregister_dsm_handler();
1100
1101 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1102         platform_driver_unregister(&nouveau_platform_driver);
1103 #endif
1104 }
1105
1106 module_init(nouveau_drm_init);
1107 module_exit(nouveau_drm_exit);
1108
1109 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1110 MODULE_AUTHOR(DRIVER_AUTHOR);
1111 MODULE_DESCRIPTION(DRIVER_DESC);
1112 MODULE_LICENSE("GPL and additional rights");