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, NVDRM_CHAN + 1,
 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, NVDRM_CHAN + 1,
 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, NVDRM_CHAN, arg0, arg1,
 237                                  &drm->channel);
 238         if (ret) {
 239                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 240                 nouveau_accel_fini(drm);
 241                 return;
 242         }
 243
 244         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 245                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 246         if (ret == 0) {
 247                 ret = RING_SPACE(drm->channel, 2);
 248                 if (ret == 0) {
 249                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 250                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 251                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 252                         } else
 253                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 254                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 255                                 OUT_RING  (drm->channel, 0x001f0000);
 256                         }
 257                 }
 258
 259                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 260                                        false, NVSW_NTFY_UEVENT, NULL, 0, 0,
 261                                        &drm->flip);
 262                 if (ret == 0)
 263                         ret = nvif_notify_get(&drm->flip);
 264                 if (ret) {
 265                         nouveau_accel_fini(drm);
 266                         return;
 267                 }
 268         }
 269
 270         if (ret) {
 271                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 272                 nouveau_accel_fini(drm);
 273                 return;
 274         }
 275
 276         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 277                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 278                                       NULL, &drm->notify);
 279                 if (ret) {
 280                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 281                         nouveau_accel_fini(drm);
 282                         return;
 283                 }
 284
 285                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 286                                        NV_DMA_IN_MEMORY,
 287                                        &(struct nv_dma_v0) {
 288                                                 .target = NV_DMA_V0_TARGET_VRAM,
 289                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 290                                                 .start = drm->notify->addr,
 291                                                 .limit = drm->notify->addr + 31
 292                                        }, sizeof(struct nv_dma_v0),
 293                                        &drm->ntfy);
 294                 if (ret) {
 295                         nouveau_accel_fini(drm);
 296                         return;
 297                 }
 298         }
 299
 300
 301         nouveau_bo_move_init(drm);
 302 }
 303
 304 static int nouveau_drm_probe(struct pci_dev *pdev,
 305                              const struct pci_device_id *pent)
 306 {
 307         struct nvkm_device *device;
 308         struct apertures_struct *aper;
 309         bool boot = false;
 310         int ret;
 311
 312         /* remove conflicting drivers (vesafb, efifb etc) */
 313         aper = alloc_apertures(3);
 314         if (!aper)
 315                 return -ENOMEM;
 316
 317         aper->ranges[0].base = pci_resource_start(pdev, 1);
 318         aper->ranges[0].size = pci_resource_len(pdev, 1);
 319         aper->count = 1;
 320
 321         if (pci_resource_len(pdev, 2)) {
 322                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 323                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 324                 aper->count++;
 325         }
 326
 327         if (pci_resource_len(pdev, 3)) {
 328                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 329                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 330                 aper->count++;
 331         }
 332
 333 #ifdef CONFIG_X86
 334         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 335 #endif
 336         if (nouveau_modeset != 2)
 337                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 338         kfree(aper);
 339
 340         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 341                                   true, true, ~0ULL, &device);
 342         if (ret)
 343                 return ret;
 344
 345         pci_set_master(pdev);
 346
 347         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 348         if (ret) {
 349                 nvkm_device_del(&device);
 350                 return ret;
 351         }
 352
 353         return 0;
 354 }
 355
 356 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 357
 358 static void
 359 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 360 {
 361         struct pci_dev *pdev = drm->dev->pdev;
 362
 363         if (!pdev) {
 364                 DRM_INFO("not a PCI device; no HDMI\n");
 365                 drm->hdmi_device = NULL;
 366                 return;
 367         }
 368
 369         /* subfunction one is a hdmi audio device? */
 370         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 371                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 372
 373         if (!drm->hdmi_device) {
 374                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 375                 return;
 376         }
 377
 378         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 379                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 380                 pci_dev_put(drm->hdmi_device);
 381                 drm->hdmi_device = NULL;
 382                 return;
 383         }
 384 }
 385
 386 static int
 387 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 388 {
 389         struct nouveau_drm *drm;
 390         int ret;
 391
 392         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 393         if (ret)
 394                 return ret;
 395
 396         dev->dev_private = drm;
 397         drm->dev = dev;
 398         nvxx_client(&drm->client.base)->debug =
 399                 nvkm_dbgopt(nouveau_debug, "DRM");
 400
 401         INIT_LIST_HEAD(&drm->clients);
 402         spin_lock_init(&drm->tile.lock);
 403
 404         nouveau_get_hdmi_dev(drm);
 405
 406         ret = nvif_device_init(&drm->client.base.object,
 407                                NVDRM_DEVICE, NV_DEVICE,
 408                                &(struct nv_device_v0) {
 409                                         .device = ~0,
 410                                }, sizeof(struct nv_device_v0),
 411                                &drm->device);
 412         if (ret)
 413                 goto fail_device;
 414
 415         dev->irq_enabled = true;
 416
 417         /* workaround an odd issue on nvc1 by disabling the device's
 418          * nosnoop capability.  hopefully won't cause issues until a
 419          * better fix is found - assuming there is one...
 420          */
 421         if (drm->device.info.chipset == 0xc1)
 422                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 423
 424         nouveau_vga_init(drm);
 425
 426         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 427                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 428                                   0x1000, NULL, &drm->client.vm);
 429                 if (ret)
 430                         goto fail_device;
 431
 432                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 433         }
 434
 435         ret = nouveau_ttm_init(drm);
 436         if (ret)
 437                 goto fail_ttm;
 438
 439         ret = nouveau_bios_init(dev);
 440         if (ret)
 441                 goto fail_bios;
 442
 443         ret = nouveau_display_create(dev);
 444         if (ret)
 445                 goto fail_dispctor;
 446
 447         if (dev->mode_config.num_crtc) {
 448                 ret = nouveau_display_init(dev);
 449                 if (ret)
 450                         goto fail_dispinit;
 451         }
 452
 453         nouveau_sysfs_init(dev);
 454         nouveau_hwmon_init(dev);
 455         nouveau_accel_init(drm);
 456         nouveau_fbcon_init(dev);
 457
 458         if (nouveau_runtime_pm != 0) {
 459                 pm_runtime_use_autosuspend(dev->dev);
 460                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 461                 pm_runtime_set_active(dev->dev);
 462                 pm_runtime_allow(dev->dev);
 463                 pm_runtime_mark_last_busy(dev->dev);
 464                 pm_runtime_put(dev->dev);
 465         }
 466         return 0;
 467
 468 fail_dispinit:
 469         nouveau_display_destroy(dev);
 470 fail_dispctor:
 471         nouveau_bios_takedown(dev);
 472 fail_bios:
 473         nouveau_ttm_fini(drm);
 474 fail_ttm:
 475         nouveau_vga_fini(drm);
 476 fail_device:
 477         nvif_device_fini(&drm->device);
 478         nouveau_cli_destroy(&drm->client);
 479         return ret;
 480 }
 481
 482 static int
 483 nouveau_drm_unload(struct drm_device *dev)
 484 {
 485         struct nouveau_drm *drm = nouveau_drm(dev);
 486
 487         pm_runtime_get_sync(dev->dev);
 488         nouveau_fbcon_fini(dev);
 489         nouveau_accel_fini(drm);
 490         nouveau_hwmon_fini(dev);
 491         nouveau_sysfs_fini(dev);
 492
 493         if (dev->mode_config.num_crtc)
 494                 nouveau_display_fini(dev);
 495         nouveau_display_destroy(dev);
 496
 497         nouveau_bios_takedown(dev);
 498
 499         nouveau_ttm_fini(drm);
 500         nouveau_vga_fini(drm);
 501
 502         nvif_device_fini(&drm->device);
 503         if (drm->hdmi_device)
 504                 pci_dev_put(drm->hdmi_device);
 505         nouveau_cli_destroy(&drm->client);
 506         return 0;
 507 }
 508
 509 void
 510 nouveau_drm_device_remove(struct drm_device *dev)
 511 {
 512         struct nouveau_drm *drm = nouveau_drm(dev);
 513         struct nvkm_client *client;
 514         struct nvkm_device *device;
 515
 516         dev->irq_enabled = false;
 517         client = nvxx_client(&drm->client.base);
 518         device = nvkm_device_find(client->device);
 519         drm_put_dev(dev);
 520
 521         nvkm_device_del(&device);
 522 }
 523
 524 static void
 525 nouveau_drm_remove(struct pci_dev *pdev)
 526 {
 527         struct drm_device *dev = pci_get_drvdata(pdev);
 528
 529         nouveau_drm_device_remove(dev);
 530 }
 531
 532 static int
 533 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 534 {
 535         struct nouveau_drm *drm = nouveau_drm(dev);
 536         struct nouveau_cli *cli;
 537         int ret;
 538
 539         if (dev->mode_config.num_crtc) {
 540                 NV_INFO(drm, "suspending console...\n");
 541                 nouveau_fbcon_set_suspend(dev, 1);
 542                 NV_INFO(drm, "suspending display...\n");
 543                 ret = nouveau_display_suspend(dev, runtime);
 544                 if (ret)
 545                         return ret;
 546         }
 547
 548         NV_INFO(drm, "evicting buffers...\n");
 549         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 550
 551         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 552         if (drm->cechan) {
 553                 ret = nouveau_channel_idle(drm->cechan);
 554                 if (ret)
 555                         goto fail_display;
 556         }
 557
 558         if (drm->channel) {
 559                 ret = nouveau_channel_idle(drm->channel);
 560                 if (ret)
 561                         goto fail_display;
 562         }
 563
 564         NV_INFO(drm, "suspending client object trees...\n");
 565         if (drm->fence && nouveau_fence(drm)->suspend) {
 566                 if (!nouveau_fence(drm)->suspend(drm)) {
 567                         ret = -ENOMEM;
 568                         goto fail_display;
 569                 }
 570         }
 571
 572         list_for_each_entry(cli, &drm->clients, head) {
 573                 ret = nvif_client_suspend(&cli->base);
 574                 if (ret)
 575                         goto fail_client;
 576         }
 577
 578         NV_INFO(drm, "suspending kernel object tree...\n");
 579         ret = nvif_client_suspend(&drm->client.base);
 580         if (ret)
 581                 goto fail_client;
 582
 583         return 0;
 584
 585 fail_client:
 586         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 587                 nvif_client_resume(&cli->base);
 588         }
 589
 590         if (drm->fence && nouveau_fence(drm)->resume)
 591                 nouveau_fence(drm)->resume(drm);
 592
 593 fail_display:
 594         if (dev->mode_config.num_crtc) {
 595                 NV_INFO(drm, "resuming display...\n");
 596                 nouveau_display_resume(dev, runtime);
 597         }
 598         return ret;
 599 }
 600
 601 static int
 602 nouveau_do_resume(struct drm_device *dev, bool runtime)
 603 {
 604         struct nouveau_drm *drm = nouveau_drm(dev);
 605         struct nouveau_cli *cli;
 606
 607         NV_INFO(drm, "resuming kernel object tree...\n");
 608         nvif_client_resume(&drm->client.base);
 609
 610         NV_INFO(drm, "resuming client object trees...\n");
 611         if (drm->fence && nouveau_fence(drm)->resume)
 612                 nouveau_fence(drm)->resume(drm);
 613
 614         list_for_each_entry(cli, &drm->clients, head) {
 615                 nvif_client_resume(&cli->base);
 616         }
 617
 618         nouveau_run_vbios_init(dev);
 619
 620         if (dev->mode_config.num_crtc) {
 621                 NV_INFO(drm, "resuming display...\n");
 622                 nouveau_display_resume(dev, runtime);
 623                 NV_INFO(drm, "resuming console...\n");
 624                 nouveau_fbcon_set_suspend(dev, 0);
 625         }
 626
 627         return 0;
 628 }
 629
 630 int
 631 nouveau_pmops_suspend(struct device *dev)
 632 {
 633         struct pci_dev *pdev = to_pci_dev(dev);
 634         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 635         int ret;
 636
 637         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 638             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 639                 return 0;
 640
 641         ret = nouveau_do_suspend(drm_dev, false);
 642         if (ret)
 643                 return ret;
 644
 645         pci_save_state(pdev);
 646         pci_disable_device(pdev);
 647         pci_set_power_state(pdev, PCI_D3hot);
 648         udelay(200);
 649         return 0;
 650 }
 651
 652 int
 653 nouveau_pmops_resume(struct device *dev)
 654 {
 655         struct pci_dev *pdev = to_pci_dev(dev);
 656         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 657         int ret;
 658
 659         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 660             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 661                 return 0;
 662
 663         pci_set_power_state(pdev, PCI_D0);
 664         pci_restore_state(pdev);
 665         ret = pci_enable_device(pdev);
 666         if (ret)
 667                 return ret;
 668         pci_set_master(pdev);
 669
 670         return nouveau_do_resume(drm_dev, false);
 671 }
 672
 673 static int
 674 nouveau_pmops_freeze(struct device *dev)
 675 {
 676         struct pci_dev *pdev = to_pci_dev(dev);
 677         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 678         return nouveau_do_suspend(drm_dev, false);
 679 }
 680
 681 static int
 682 nouveau_pmops_thaw(struct device *dev)
 683 {
 684         struct pci_dev *pdev = to_pci_dev(dev);
 685         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 686         return nouveau_do_resume(drm_dev, false);
 687 }
 688
 689 static int
 690 nouveau_pmops_runtime_suspend(struct device *dev)
 691 {
 692         struct pci_dev *pdev = to_pci_dev(dev);
 693         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 694         int ret;
 695
 696         if (nouveau_runtime_pm == 0) {
 697                 pm_runtime_forbid(dev);
 698                 return -EBUSY;
 699         }
 700
 701         /* are we optimus enabled? */
 702         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 703                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 704                 pm_runtime_forbid(dev);
 705                 return -EBUSY;
 706         }
 707
 708         drm_kms_helper_poll_disable(drm_dev);
 709         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 710         nouveau_switcheroo_optimus_dsm();
 711         ret = nouveau_do_suspend(drm_dev, true);
 712         pci_save_state(pdev);
 713         pci_disable_device(pdev);
 714         pci_ignore_hotplug(pdev);
 715         pci_set_power_state(pdev, PCI_D3cold);
 716         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 717         return ret;
 718 }
 719
 720 static int
 721 nouveau_pmops_runtime_resume(struct device *dev)
 722 {
 723         struct pci_dev *pdev = to_pci_dev(dev);
 724         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 725         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 726         int ret;
 727
 728         if (nouveau_runtime_pm == 0)
 729                 return -EINVAL;
 730
 731         pci_set_power_state(pdev, PCI_D0);
 732         pci_restore_state(pdev);
 733         ret = pci_enable_device(pdev);
 734         if (ret)
 735                 return ret;
 736         pci_set_master(pdev);
 737
 738         ret = nouveau_do_resume(drm_dev, true);
 739         drm_kms_helper_poll_enable(drm_dev);
 740         /* do magic */
 741         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 742         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 743         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 744         return ret;
 745 }
 746
 747 static int
 748 nouveau_pmops_runtime_idle(struct device *dev)
 749 {
 750         struct pci_dev *pdev = to_pci_dev(dev);
 751         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 752         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 753         struct drm_crtc *crtc;
 754
 755         if (nouveau_runtime_pm == 0) {
 756                 pm_runtime_forbid(dev);
 757                 return -EBUSY;
 758         }
 759
 760         /* are we optimus enabled? */
 761         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 762                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 763                 pm_runtime_forbid(dev);
 764                 return -EBUSY;
 765         }
 766
 767         /* if we have a hdmi audio device - make sure it has a driver loaded */
 768         if (drm->hdmi_device) {
 769                 if (!drm->hdmi_device->driver) {
 770                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 771                         pm_runtime_mark_last_busy(dev);
 772                         return -EBUSY;
 773                 }
 774         }
 775
 776         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 777                 if (crtc->enabled) {
 778                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 779                         return -EBUSY;
 780                 }
 781         }
 782         pm_runtime_mark_last_busy(dev);
 783         pm_runtime_autosuspend(dev);
 784         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 785         return 1;
 786 }
 787
 788 static int
 789 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 790 {
 791         struct nouveau_drm *drm = nouveau_drm(dev);
 792         struct nouveau_cli *cli;
 793         char name[32], tmpname[TASK_COMM_LEN];
 794         int ret;
 795
 796         /* need to bring up power immediately if opening device */
 797         ret = pm_runtime_get_sync(dev->dev);
 798         if (ret < 0 && ret != -EACCES)
 799                 return ret;
 800
 801         get_task_comm(tmpname, current);
 802         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 803
 804         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 805
 806         if (ret)
 807                 goto out_suspend;
 808
 809         cli->base.super = false;
 810
 811         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 812                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 813                                   0x1000, NULL, &cli->vm);
 814                 if (ret) {
 815                         nouveau_cli_destroy(cli);
 816                         goto out_suspend;
 817                 }
 818
 819                 nvxx_client(&cli->base)->vm = cli->vm;
 820         }
 821
 822         fpriv->driver_priv = cli;
 823
 824         mutex_lock(&drm->client.mutex);
 825         list_add(&cli->head, &drm->clients);
 826         mutex_unlock(&drm->client.mutex);
 827
 828 out_suspend:
 829         pm_runtime_mark_last_busy(dev->dev);
 830         pm_runtime_put_autosuspend(dev->dev);
 831
 832         return ret;
 833 }
 834
 835 static void
 836 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 837 {
 838         struct nouveau_cli *cli = nouveau_cli(fpriv);
 839         struct nouveau_drm *drm = nouveau_drm(dev);
 840
 841         pm_runtime_get_sync(dev->dev);
 842
 843         mutex_lock(&cli->mutex);
 844         if (cli->abi16)
 845                 nouveau_abi16_fini(cli->abi16);
 846         mutex_unlock(&cli->mutex);
 847
 848         mutex_lock(&drm->client.mutex);
 849         list_del(&cli->head);
 850         mutex_unlock(&drm->client.mutex);
 851
 852 }
 853
 854 static void
 855 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 856 {
 857         struct nouveau_cli *cli = nouveau_cli(fpriv);
 858         nouveau_cli_destroy(cli);
 859         pm_runtime_mark_last_busy(dev->dev);
 860         pm_runtime_put_autosuspend(dev->dev);
 861 }
 862
 863 static const struct drm_ioctl_desc
 864 nouveau_ioctls[] = {
 865         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 866         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 867         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 868         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 869         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 870         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 871         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 872         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 873         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 874         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 875         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 876         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 877 };
 878
 879 long
 880 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 881 {
 882         struct drm_file *filp = file->private_data;
 883         struct drm_device *dev = filp->minor->dev;
 884         long ret;
 885
 886         ret = pm_runtime_get_sync(dev->dev);
 887         if (ret < 0 && ret != -EACCES)
 888                 return ret;
 889
 890         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 891         case DRM_NOUVEAU_NVIF:
 892                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 893                 break;
 894         default:
 895                 ret = drm_ioctl(file, cmd, arg);
 896                 break;
 897         }
 898
 899         pm_runtime_mark_last_busy(dev->dev);
 900         pm_runtime_put_autosuspend(dev->dev);
 901         return ret;
 902 }
 903
 904 static const struct file_operations
 905 nouveau_driver_fops = {
 906         .owner = THIS_MODULE,
 907         .open = drm_open,
 908         .release = drm_release,
 909         .unlocked_ioctl = nouveau_drm_ioctl,
 910         .mmap = nouveau_ttm_mmap,
 911         .poll = drm_poll,
 912         .read = drm_read,
 913 #if defined(CONFIG_COMPAT)
 914         .compat_ioctl = nouveau_compat_ioctl,
 915 #endif
 916         .llseek = noop_llseek,
 917 };
 918
 919 static struct drm_driver
 920 driver_stub = {
 921         .driver_features =
 922                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 923                 DRIVER_KMS_LEGACY_CONTEXT,
 924
 925         .load = nouveau_drm_load,
 926         .unload = nouveau_drm_unload,
 927         .open = nouveau_drm_open,
 928         .preclose = nouveau_drm_preclose,
 929         .postclose = nouveau_drm_postclose,
 930         .lastclose = nouveau_vga_lastclose,
 931
 932 #if defined(CONFIG_DEBUG_FS)
 933         .debugfs_init = nouveau_debugfs_init,
 934         .debugfs_cleanup = nouveau_debugfs_takedown,
 935 #endif
 936
 937         .get_vblank_counter = drm_vblank_count,
 938         .enable_vblank = nouveau_display_vblank_enable,
 939         .disable_vblank = nouveau_display_vblank_disable,
 940         .get_scanout_position = nouveau_display_scanoutpos,
 941         .get_vblank_timestamp = nouveau_display_vblstamp,
 942
 943         .ioctls = nouveau_ioctls,
 944         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 945         .fops = &nouveau_driver_fops,
 946
 947         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 948         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 949         .gem_prime_export = drm_gem_prime_export,
 950         .gem_prime_import = drm_gem_prime_import,
 951         .gem_prime_pin = nouveau_gem_prime_pin,
 952         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 953         .gem_prime_unpin = nouveau_gem_prime_unpin,
 954         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 955         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 956         .gem_prime_vmap = nouveau_gem_prime_vmap,
 957         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 958
 959         .gem_free_object = nouveau_gem_object_del,
 960         .gem_open_object = nouveau_gem_object_open,
 961         .gem_close_object = nouveau_gem_object_close,
 962
 963         .dumb_create = nouveau_display_dumb_create,
 964         .dumb_map_offset = nouveau_display_dumb_map_offset,
 965         .dumb_destroy = drm_gem_dumb_destroy,
 966
 967         .name = DRIVER_NAME,
 968         .desc = DRIVER_DESC,
 969 #ifdef GIT_REVISION
 970         .date = GIT_REVISION,
 971 #else
 972         .date = DRIVER_DATE,
 973 #endif
 974         .major = DRIVER_MAJOR,
 975         .minor = DRIVER_MINOR,
 976         .patchlevel = DRIVER_PATCHLEVEL,
 977 };
 978
 979 static struct pci_device_id
 980 nouveau_drm_pci_table[] = {
 981         {
 982                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 983                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 984                 .class_mask  = 0xff << 16,
 985         },
 986         {
 987                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 988                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 989                 .class_mask  = 0xff << 16,
 990         },
 991         {}
 992 };
 993
 994 static void nouveau_display_options(void)
 995 {
 996         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
 997
 998         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
 999         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1000         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1001         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1002         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1003         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1004         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1005         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1006         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1007         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1008         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1009 }
1010
1011 static const struct dev_pm_ops nouveau_pm_ops = {
1012         .suspend = nouveau_pmops_suspend,
1013         .resume = nouveau_pmops_resume,
1014         .freeze = nouveau_pmops_freeze,
1015         .thaw = nouveau_pmops_thaw,
1016         .poweroff = nouveau_pmops_freeze,
1017         .restore = nouveau_pmops_resume,
1018         .runtime_suspend = nouveau_pmops_runtime_suspend,
1019         .runtime_resume = nouveau_pmops_runtime_resume,
1020         .runtime_idle = nouveau_pmops_runtime_idle,
1021 };
1022
1023 static struct pci_driver
1024 nouveau_drm_pci_driver = {
1025         .name = "nouveau",
1026         .id_table = nouveau_drm_pci_table,
1027         .probe = nouveau_drm_probe,
1028         .remove = nouveau_drm_remove,
1029         .driver.pm = &nouveau_pm_ops,
1030 };
1031
1032 struct drm_device *
1033 nouveau_platform_device_create(struct platform_device *pdev,
1034                                struct nvkm_device **pdevice)
1035 {
1036         struct drm_device *drm;
1037         int err;
1038
1039         err = nvkm_device_tegra_new(pdev, nouveau_config, nouveau_debug,
1040                                     true, true, ~0ULL, pdevice);
1041         if (err)
1042                 goto err_free;
1043
1044         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1045         if (!drm) {
1046                 err = -ENOMEM;
1047                 goto err_free;
1048         }
1049
1050         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1051         if (err < 0)
1052                 goto err_free;
1053
1054         drm->platformdev = pdev;
1055         platform_set_drvdata(pdev, drm);
1056
1057         return drm;
1058
1059 err_free:
1060         nvkm_device_del(pdevice);
1061
1062         return ERR_PTR(err);
1063 }
1064
1065 static int __init
1066 nouveau_drm_init(void)
1067 {
1068         driver_pci = driver_stub;
1069         driver_pci.set_busid = drm_pci_set_busid;
1070         driver_platform = driver_stub;
1071         driver_platform.set_busid = drm_platform_set_busid;
1072
1073         nouveau_display_options();
1074
1075         if (nouveau_modeset == -1) {
1076 #ifdef CONFIG_VGA_CONSOLE
1077                 if (vgacon_text_force())
1078                         nouveau_modeset = 0;
1079 #endif
1080         }
1081
1082         if (!nouveau_modeset)
1083                 return 0;
1084
1085 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1086         platform_driver_register(&nouveau_platform_driver);
1087 #endif
1088
1089         nouveau_register_dsm_handler();
1090         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1091 }
1092
1093 static void __exit
1094 nouveau_drm_exit(void)
1095 {
1096         if (!nouveau_modeset)
1097                 return;
1098
1099         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1100         nouveau_unregister_dsm_handler();
1101
1102 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1103         platform_driver_unregister(&nouveau_platform_driver);
1104 #endif
1105 }
1106
1107 module_init(nouveau_drm_init);
1108 module_exit(nouveau_drm_exit);
1109
1110 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1111 MODULE_AUTHOR(DRIVER_AUTHOR);
1112 MODULE_DESCRIPTION(DRIVER_DESC);
1113 MODULE_LICENSE("GPL and additional rights");