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 <nvif/class.h>
  41 #include <nvif/cl0002.h>
  42 #include <nvif/cla06f.h>
  43 #include <nvif/if0004.h>
  44
  45 #include "nouveau_drv.h"
  46 #include "nouveau_dma.h"
  47 #include "nouveau_ttm.h"
  48 #include "nouveau_gem.h"
  49 #include "nouveau_vga.h"
  50 #include "nouveau_hwmon.h"
  51 #include "nouveau_acpi.h"
  52 #include "nouveau_bios.h"
  53 #include "nouveau_ioctl.h"
  54 #include "nouveau_abi16.h"
  55 #include "nouveau_fbcon.h"
  56 #include "nouveau_fence.h"
  57 #include "nouveau_debugfs.h"
  58 #include "nouveau_usif.h"
  59 #include "nouveau_connector.h"
  60 #include "nouveau_platform.h"
  61
  62 MODULE_PARM_DESC(config, "option string to pass to driver core");
  63 static char *nouveau_config;
  64 module_param_named(config, nouveau_config, charp, 0400);
  65
  66 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  67 static char *nouveau_debug;
  68 module_param_named(debug, nouveau_debug, charp, 0400);
  69
  70 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  71 static int nouveau_noaccel = 0;
  72 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  73
  74 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  75                           "0 = disabled, 1 = enabled, 2 = headless)");
  76 int nouveau_modeset = -1;
  77 module_param_named(modeset, nouveau_modeset, int, 0400);
  78
  79 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  80 int nouveau_runtime_pm = -1;
  81 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  82
  83 static struct drm_driver driver_stub;
  84 static struct drm_driver driver_pci;
  85 static struct drm_driver driver_platform;
  86
  87 static u64
  88 nouveau_pci_name(struct pci_dev *pdev)
  89 {
  90         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  91         name |= pdev->bus->number << 16;
  92         name |= PCI_SLOT(pdev->devfn) << 8;
  93         return name | PCI_FUNC(pdev->devfn);
  94 }
  95
  96 static u64
  97 nouveau_platform_name(struct platform_device *platformdev)
  98 {
  99         return platformdev->id;
 100 }
 101
 102 static u64
 103 nouveau_name(struct drm_device *dev)
 104 {
 105         if (dev->pdev)
 106                 return nouveau_pci_name(dev->pdev);
 107         else
 108                 return nouveau_platform_name(dev->platformdev);
 109 }
 110
 111 static int
 112 nouveau_cli_create(struct drm_device *dev, const char *sname,
 113                    int size, void **pcli)
 114 {
 115         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 116         int ret;
 117         if (cli) {
 118                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
 119                 cli->dev = dev;
 120
 121                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
 122                                        nouveau_config, nouveau_debug,
 123                                        &cli->base);
 124                 if (ret == 0) {
 125                         mutex_init(&cli->mutex);
 126                         usif_client_init(cli);
 127                 }
 128                 return ret;
 129         }
 130         return -ENOMEM;
 131 }
 132
 133 static void
 134 nouveau_cli_destroy(struct nouveau_cli *cli)
 135 {
 136         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 137         nvif_client_fini(&cli->base);
 138         usif_client_fini(cli);
 139         kfree(cli);
 140 }
 141
 142 static void
 143 nouveau_accel_fini(struct nouveau_drm *drm)
 144 {
 145         nouveau_channel_idle(drm->channel);
 146         nvif_object_fini(&drm->ntfy);
 147         nvkm_gpuobj_del(&drm->notify);
 148         nvif_notify_fini(&drm->flip);
 149         nvif_object_fini(&drm->nvsw);
 150         nouveau_channel_del(&drm->channel);
 151
 152         nouveau_channel_idle(drm->cechan);
 153         nvif_object_fini(&drm->ttm.copy);
 154         nouveau_channel_del(&drm->cechan);
 155
 156         if (drm->fence)
 157                 nouveau_fence(drm)->dtor(drm);
 158 }
 159
 160 static void
 161 nouveau_accel_init(struct nouveau_drm *drm)
 162 {
 163         struct nvif_device *device = &drm->device;
 164         struct nvif_sclass *sclass;
 165         u32 arg0, arg1;
 166         int ret, i, n;
 167
 168         if (nouveau_noaccel)
 169                 return;
 170
 171         /* initialise synchronisation routines */
 172         /*XXX: this is crap, but the fence/channel stuff is a little
 173          *     backwards in some places.  this will be fixed.
 174          */
 175         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 176         if (ret < 0)
 177                 return;
 178
 179         for (ret = -ENOSYS, i = 0; i < n; i++) {
 180                 switch (sclass[i].oclass) {
 181                 case NV03_CHANNEL_DMA:
 182                         ret = nv04_fence_create(drm);
 183                         break;
 184                 case NV10_CHANNEL_DMA:
 185                         ret = nv10_fence_create(drm);
 186                         break;
 187                 case NV17_CHANNEL_DMA:
 188                 case NV40_CHANNEL_DMA:
 189                         ret = nv17_fence_create(drm);
 190                         break;
 191                 case NV50_CHANNEL_GPFIFO:
 192                         ret = nv50_fence_create(drm);
 193                         break;
 194                 case G82_CHANNEL_GPFIFO:
 195                         ret = nv84_fence_create(drm);
 196                         break;
 197                 case FERMI_CHANNEL_GPFIFO:
 198                 case KEPLER_CHANNEL_GPFIFO_A:
 199                 case KEPLER_CHANNEL_GPFIFO_B:
 200                 case MAXWELL_CHANNEL_GPFIFO_A:
 201                         ret = nvc0_fence_create(drm);
 202                         break;
 203                 default:
 204                         break;
 205                 }
 206         }
 207
 208         nvif_object_sclass_put(&sclass);
 209         if (ret) {
 210                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 211                 nouveau_accel_fini(drm);
 212                 return;
 213         }
 214
 215         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 216                 ret = nouveau_channel_new(drm, &drm->device,
 217                                           NVA06F_V0_ENGINE_CE0 |
 218                                           NVA06F_V0_ENGINE_CE1,
 219                                           0, &drm->cechan);
 220                 if (ret)
 221                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 222
 223                 arg0 = NVA06F_V0_ENGINE_GR;
 224                 arg1 = 1;
 225         } else
 226         if (device->info.chipset >= 0xa3 &&
 227             device->info.chipset != 0xaa &&
 228             device->info.chipset != 0xac) {
 229                 ret = nouveau_channel_new(drm, &drm->device,
 230                                           NvDmaFB, NvDmaTT, &drm->cechan);
 231                 if (ret)
 232                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 233
 234                 arg0 = NvDmaFB;
 235                 arg1 = NvDmaTT;
 236         } else {
 237                 arg0 = NvDmaFB;
 238                 arg1 = NvDmaTT;
 239         }
 240
 241         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 242         if (ret) {
 243                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 244                 nouveau_accel_fini(drm);
 245                 return;
 246         }
 247
 248         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 249                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 250         if (ret == 0) {
 251                 ret = RING_SPACE(drm->channel, 2);
 252                 if (ret == 0) {
 253                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 254                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 255                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 256                         } else
 257                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 258                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 259                                 OUT_RING  (drm->channel, 0x001f0000);
 260                         }
 261                 }
 262
 263                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 264                                        false, NV04_NVSW_NTFY_UEVENT,
 265                                        NULL, 0, 0, &drm->flip);
 266                 if (ret == 0)
 267                         ret = nvif_notify_get(&drm->flip);
 268                 if (ret) {
 269                         nouveau_accel_fini(drm);
 270                         return;
 271                 }
 272         }
 273
 274         if (ret) {
 275                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 276                 nouveau_accel_fini(drm);
 277                 return;
 278         }
 279
 280         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 281                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 282                                       NULL, &drm->notify);
 283                 if (ret) {
 284                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 285                         nouveau_accel_fini(drm);
 286                         return;
 287                 }
 288
 289                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 290                                        NV_DMA_IN_MEMORY,
 291                                        &(struct nv_dma_v0) {
 292                                                 .target = NV_DMA_V0_TARGET_VRAM,
 293                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 294                                                 .start = drm->notify->addr,
 295                                                 .limit = drm->notify->addr + 31
 296                                        }, sizeof(struct nv_dma_v0),
 297                                        &drm->ntfy);
 298                 if (ret) {
 299                         nouveau_accel_fini(drm);
 300                         return;
 301                 }
 302         }
 303
 304
 305         nouveau_bo_move_init(drm);
 306 }
 307
 308 static int nouveau_drm_probe(struct pci_dev *pdev,
 309                              const struct pci_device_id *pent)
 310 {
 311         struct nvkm_device *device;
 312         struct apertures_struct *aper;
 313         bool boot = false;
 314         int ret;
 315
 316         if (vga_switcheroo_client_probe_defer(pdev))
 317                 return -EPROBE_DEFER;
 318
 319         /* remove conflicting drivers (vesafb, efifb etc) */
 320         aper = alloc_apertures(3);
 321         if (!aper)
 322                 return -ENOMEM;
 323
 324         aper->ranges[0].base = pci_resource_start(pdev, 1);
 325         aper->ranges[0].size = pci_resource_len(pdev, 1);
 326         aper->count = 1;
 327
 328         if (pci_resource_len(pdev, 2)) {
 329                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 330                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 331                 aper->count++;
 332         }
 333
 334         if (pci_resource_len(pdev, 3)) {
 335                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 336                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 337                 aper->count++;
 338         }
 339
 340 #ifdef CONFIG_X86
 341         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 342 #endif
 343         if (nouveau_modeset != 2)
 344                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 345         kfree(aper);
 346
 347         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 348                                   true, true, ~0ULL, &device);
 349         if (ret)
 350                 return ret;
 351
 352         pci_set_master(pdev);
 353
 354         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 355         if (ret) {
 356                 nvkm_device_del(&device);
 357                 return ret;
 358         }
 359
 360         return 0;
 361 }
 362
 363 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 364
 365 static void
 366 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 367 {
 368         struct pci_dev *pdev = drm->dev->pdev;
 369
 370         if (!pdev) {
 371                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
 372                 drm->hdmi_device = NULL;
 373                 return;
 374         }
 375
 376         /* subfunction one is a hdmi audio device? */
 377         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 378                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 379
 380         if (!drm->hdmi_device) {
 381                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 382                 return;
 383         }
 384
 385         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 386                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 387                 pci_dev_put(drm->hdmi_device);
 388                 drm->hdmi_device = NULL;
 389                 return;
 390         }
 391 }
 392
 393 static int
 394 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 395 {
 396         struct nouveau_drm *drm;
 397         int ret;
 398
 399         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 400         if (ret)
 401                 return ret;
 402
 403         dev->dev_private = drm;
 404         drm->dev = dev;
 405         nvxx_client(&drm->client.base)->debug =
 406                 nvkm_dbgopt(nouveau_debug, "DRM");
 407
 408         INIT_LIST_HEAD(&drm->clients);
 409         spin_lock_init(&drm->tile.lock);
 410
 411         nouveau_get_hdmi_dev(drm);
 412
 413         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 414                                &(struct nv_device_v0) {
 415                                         .device = ~0,
 416                                }, sizeof(struct nv_device_v0),
 417                                &drm->device);
 418         if (ret)
 419                 goto fail_device;
 420
 421         dev->irq_enabled = true;
 422
 423         /* workaround an odd issue on nvc1 by disabling the device's
 424          * nosnoop capability.  hopefully won't cause issues until a
 425          * better fix is found - assuming there is one...
 426          */
 427         if (drm->device.info.chipset == 0xc1)
 428                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 429
 430         nouveau_vga_init(drm);
 431
 432         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 433                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 434                                   0x1000, NULL, &drm->client.vm);
 435                 if (ret)
 436                         goto fail_device;
 437
 438                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 439         }
 440
 441         ret = nouveau_ttm_init(drm);
 442         if (ret)
 443                 goto fail_ttm;
 444
 445         ret = nouveau_bios_init(dev);
 446         if (ret)
 447                 goto fail_bios;
 448
 449         ret = nouveau_display_create(dev);
 450         if (ret)
 451                 goto fail_dispctor;
 452
 453         if (dev->mode_config.num_crtc) {
 454                 ret = nouveau_display_init(dev);
 455                 if (ret)
 456                         goto fail_dispinit;
 457         }
 458
 459         nouveau_debugfs_init(drm);
 460         nouveau_hwmon_init(dev);
 461         nouveau_accel_init(drm);
 462         nouveau_fbcon_init(dev);
 463
 464         if (nouveau_runtime_pm != 0) {
 465                 pm_runtime_use_autosuspend(dev->dev);
 466                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 467                 pm_runtime_set_active(dev->dev);
 468                 pm_runtime_allow(dev->dev);
 469                 pm_runtime_mark_last_busy(dev->dev);
 470                 pm_runtime_put(dev->dev);
 471         }
 472         return 0;
 473
 474 fail_dispinit:
 475         nouveau_display_destroy(dev);
 476 fail_dispctor:
 477         nouveau_bios_takedown(dev);
 478 fail_bios:
 479         nouveau_ttm_fini(drm);
 480 fail_ttm:
 481         nouveau_vga_fini(drm);
 482 fail_device:
 483         nvif_device_fini(&drm->device);
 484         nouveau_cli_destroy(&drm->client);
 485         return ret;
 486 }
 487
 488 static int
 489 nouveau_drm_unload(struct drm_device *dev)
 490 {
 491         struct nouveau_drm *drm = nouveau_drm(dev);
 492
 493         pm_runtime_get_sync(dev->dev);
 494         nouveau_fbcon_fini(dev);
 495         nouveau_accel_fini(drm);
 496         nouveau_hwmon_fini(dev);
 497         nouveau_debugfs_fini(drm);
 498
 499         if (dev->mode_config.num_crtc)
 500                 nouveau_display_fini(dev);
 501         nouveau_display_destroy(dev);
 502
 503         nouveau_bios_takedown(dev);
 504
 505         nouveau_ttm_fini(drm);
 506         nouveau_vga_fini(drm);
 507
 508         nvif_device_fini(&drm->device);
 509         if (drm->hdmi_device)
 510                 pci_dev_put(drm->hdmi_device);
 511         nouveau_cli_destroy(&drm->client);
 512         return 0;
 513 }
 514
 515 void
 516 nouveau_drm_device_remove(struct drm_device *dev)
 517 {
 518         struct nouveau_drm *drm = nouveau_drm(dev);
 519         struct nvkm_client *client;
 520         struct nvkm_device *device;
 521
 522         dev->irq_enabled = false;
 523         client = nvxx_client(&drm->client.base);
 524         device = nvkm_device_find(client->device);
 525         drm_put_dev(dev);
 526
 527         nvkm_device_del(&device);
 528 }
 529
 530 static void
 531 nouveau_drm_remove(struct pci_dev *pdev)
 532 {
 533         struct drm_device *dev = pci_get_drvdata(pdev);
 534
 535         nouveau_drm_device_remove(dev);
 536 }
 537
 538 static int
 539 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 540 {
 541         struct nouveau_drm *drm = nouveau_drm(dev);
 542         struct nouveau_cli *cli;
 543         int ret;
 544
 545         if (dev->mode_config.num_crtc) {
 546                 NV_INFO(drm, "suspending console...\n");
 547                 nouveau_fbcon_set_suspend(dev, 1);
 548                 NV_INFO(drm, "suspending display...\n");
 549                 ret = nouveau_display_suspend(dev, runtime);
 550                 if (ret)
 551                         return ret;
 552         }
 553
 554         NV_INFO(drm, "evicting buffers...\n");
 555         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 556
 557         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 558         if (drm->cechan) {
 559                 ret = nouveau_channel_idle(drm->cechan);
 560                 if (ret)
 561                         goto fail_display;
 562         }
 563
 564         if (drm->channel) {
 565                 ret = nouveau_channel_idle(drm->channel);
 566                 if (ret)
 567                         goto fail_display;
 568         }
 569
 570         NV_INFO(drm, "suspending client object trees...\n");
 571         if (drm->fence && nouveau_fence(drm)->suspend) {
 572                 if (!nouveau_fence(drm)->suspend(drm)) {
 573                         ret = -ENOMEM;
 574                         goto fail_display;
 575                 }
 576         }
 577
 578         list_for_each_entry(cli, &drm->clients, head) {
 579                 ret = nvif_client_suspend(&cli->base);
 580                 if (ret)
 581                         goto fail_client;
 582         }
 583
 584         NV_INFO(drm, "suspending kernel object tree...\n");
 585         ret = nvif_client_suspend(&drm->client.base);
 586         if (ret)
 587                 goto fail_client;
 588
 589         return 0;
 590
 591 fail_client:
 592         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 593                 nvif_client_resume(&cli->base);
 594         }
 595
 596         if (drm->fence && nouveau_fence(drm)->resume)
 597                 nouveau_fence(drm)->resume(drm);
 598
 599 fail_display:
 600         if (dev->mode_config.num_crtc) {
 601                 NV_INFO(drm, "resuming display...\n");
 602                 nouveau_display_resume(dev, runtime);
 603         }
 604         return ret;
 605 }
 606
 607 static int
 608 nouveau_do_resume(struct drm_device *dev, bool runtime)
 609 {
 610         struct nouveau_drm *drm = nouveau_drm(dev);
 611         struct nouveau_cli *cli;
 612
 613         NV_INFO(drm, "resuming kernel object tree...\n");
 614         nvif_client_resume(&drm->client.base);
 615
 616         NV_INFO(drm, "resuming client object trees...\n");
 617         if (drm->fence && nouveau_fence(drm)->resume)
 618                 nouveau_fence(drm)->resume(drm);
 619
 620         list_for_each_entry(cli, &drm->clients, head) {
 621                 nvif_client_resume(&cli->base);
 622         }
 623
 624         nouveau_run_vbios_init(dev);
 625
 626         if (dev->mode_config.num_crtc) {
 627                 NV_INFO(drm, "resuming display...\n");
 628                 nouveau_display_resume(dev, runtime);
 629                 NV_INFO(drm, "resuming console...\n");
 630                 nouveau_fbcon_set_suspend(dev, 0);
 631         }
 632
 633         return 0;
 634 }
 635
 636 int
 637 nouveau_pmops_suspend(struct device *dev)
 638 {
 639         struct pci_dev *pdev = to_pci_dev(dev);
 640         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 641         int ret;
 642
 643         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 644             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 645                 return 0;
 646
 647         ret = nouveau_do_suspend(drm_dev, false);
 648         if (ret)
 649                 return ret;
 650
 651         pci_save_state(pdev);
 652         pci_disable_device(pdev);
 653         pci_set_power_state(pdev, PCI_D3hot);
 654         udelay(200);
 655         return 0;
 656 }
 657
 658 int
 659 nouveau_pmops_resume(struct device *dev)
 660 {
 661         struct pci_dev *pdev = to_pci_dev(dev);
 662         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 663         int ret;
 664
 665         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 666             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 667                 return 0;
 668
 669         pci_set_power_state(pdev, PCI_D0);
 670         pci_restore_state(pdev);
 671         ret = pci_enable_device(pdev);
 672         if (ret)
 673                 return ret;
 674         pci_set_master(pdev);
 675
 676         return nouveau_do_resume(drm_dev, false);
 677 }
 678
 679 static int
 680 nouveau_pmops_freeze(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_suspend(drm_dev, false);
 685 }
 686
 687 static int
 688 nouveau_pmops_thaw(struct device *dev)
 689 {
 690         struct pci_dev *pdev = to_pci_dev(dev);
 691         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 692         return nouveau_do_resume(drm_dev, false);
 693 }
 694
 695 static int
 696 nouveau_pmops_runtime_suspend(struct device *dev)
 697 {
 698         struct pci_dev *pdev = to_pci_dev(dev);
 699         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 700         int ret;
 701
 702         if (nouveau_runtime_pm == 0) {
 703                 pm_runtime_forbid(dev);
 704                 return -EBUSY;
 705         }
 706
 707         /* are we optimus enabled? */
 708         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 709                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 710                 pm_runtime_forbid(dev);
 711                 return -EBUSY;
 712         }
 713
 714         drm_kms_helper_poll_disable(drm_dev);
 715         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 716         nouveau_switcheroo_optimus_dsm();
 717         ret = nouveau_do_suspend(drm_dev, true);
 718         pci_save_state(pdev);
 719         pci_disable_device(pdev);
 720         pci_ignore_hotplug(pdev);
 721         pci_set_power_state(pdev, PCI_D3cold);
 722         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 723         return ret;
 724 }
 725
 726 static int
 727 nouveau_pmops_runtime_resume(struct device *dev)
 728 {
 729         struct pci_dev *pdev = to_pci_dev(dev);
 730         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 731         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 732         int ret;
 733
 734         if (nouveau_runtime_pm == 0)
 735                 return -EINVAL;
 736
 737         pci_set_power_state(pdev, PCI_D0);
 738         pci_restore_state(pdev);
 739         ret = pci_enable_device(pdev);
 740         if (ret)
 741                 return ret;
 742         pci_set_master(pdev);
 743
 744         ret = nouveau_do_resume(drm_dev, true);
 745         drm_kms_helper_poll_enable(drm_dev);
 746         /* do magic */
 747         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 748         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 749         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 750         return ret;
 751 }
 752
 753 static int
 754 nouveau_pmops_runtime_idle(struct device *dev)
 755 {
 756         struct pci_dev *pdev = to_pci_dev(dev);
 757         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 758         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 759         struct drm_crtc *crtc;
 760
 761         if (nouveau_runtime_pm == 0) {
 762                 pm_runtime_forbid(dev);
 763                 return -EBUSY;
 764         }
 765
 766         /* are we optimus enabled? */
 767         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 768                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 769                 pm_runtime_forbid(dev);
 770                 return -EBUSY;
 771         }
 772
 773         /* if we have a hdmi audio device - make sure it has a driver loaded */
 774         if (drm->hdmi_device) {
 775                 if (!drm->hdmi_device->driver) {
 776                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 777                         pm_runtime_mark_last_busy(dev);
 778                         return -EBUSY;
 779                 }
 780         }
 781
 782         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 783                 if (crtc->enabled) {
 784                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 785                         return -EBUSY;
 786                 }
 787         }
 788         pm_runtime_mark_last_busy(dev);
 789         pm_runtime_autosuspend(dev);
 790         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 791         return 1;
 792 }
 793
 794 static int
 795 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 796 {
 797         struct nouveau_drm *drm = nouveau_drm(dev);
 798         struct nouveau_cli *cli;
 799         char name[32], tmpname[TASK_COMM_LEN];
 800         int ret;
 801
 802         /* need to bring up power immediately if opening device */
 803         ret = pm_runtime_get_sync(dev->dev);
 804         if (ret < 0 && ret != -EACCES)
 805                 return ret;
 806
 807         get_task_comm(tmpname, current);
 808         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 809
 810         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 811
 812         if (ret)
 813                 goto out_suspend;
 814
 815         cli->base.super = false;
 816
 817         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 818                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 819                                   0x1000, NULL, &cli->vm);
 820                 if (ret) {
 821                         nouveau_cli_destroy(cli);
 822                         goto out_suspend;
 823                 }
 824
 825                 nvxx_client(&cli->base)->vm = cli->vm;
 826         }
 827
 828         fpriv->driver_priv = cli;
 829
 830         mutex_lock(&drm->client.mutex);
 831         list_add(&cli->head, &drm->clients);
 832         mutex_unlock(&drm->client.mutex);
 833
 834 out_suspend:
 835         pm_runtime_mark_last_busy(dev->dev);
 836         pm_runtime_put_autosuspend(dev->dev);
 837
 838         return ret;
 839 }
 840
 841 static void
 842 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 843 {
 844         struct nouveau_cli *cli = nouveau_cli(fpriv);
 845         struct nouveau_drm *drm = nouveau_drm(dev);
 846
 847         pm_runtime_get_sync(dev->dev);
 848
 849         mutex_lock(&cli->mutex);
 850         if (cli->abi16)
 851                 nouveau_abi16_fini(cli->abi16);
 852         mutex_unlock(&cli->mutex);
 853
 854         mutex_lock(&drm->client.mutex);
 855         list_del(&cli->head);
 856         mutex_unlock(&drm->client.mutex);
 857
 858 }
 859
 860 static void
 861 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 862 {
 863         struct nouveau_cli *cli = nouveau_cli(fpriv);
 864         nouveau_cli_destroy(cli);
 865         pm_runtime_mark_last_busy(dev->dev);
 866         pm_runtime_put_autosuspend(dev->dev);
 867 }
 868
 869 static const struct drm_ioctl_desc
 870 nouveau_ioctls[] = {
 871         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 872         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 873         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 874         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 875         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 876         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 877         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 878         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 879         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 880         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 881         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 882         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 883 };
 884
 885 long
 886 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 887 {
 888         struct drm_file *filp = file->private_data;
 889         struct drm_device *dev = filp->minor->dev;
 890         long ret;
 891
 892         ret = pm_runtime_get_sync(dev->dev);
 893         if (ret < 0 && ret != -EACCES)
 894                 return ret;
 895
 896         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 897         case DRM_NOUVEAU_NVIF:
 898                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 899                 break;
 900         default:
 901                 ret = drm_ioctl(file, cmd, arg);
 902                 break;
 903         }
 904
 905         pm_runtime_mark_last_busy(dev->dev);
 906         pm_runtime_put_autosuspend(dev->dev);
 907         return ret;
 908 }
 909
 910 static const struct file_operations
 911 nouveau_driver_fops = {
 912         .owner = THIS_MODULE,
 913         .open = drm_open,
 914         .release = drm_release,
 915         .unlocked_ioctl = nouveau_drm_ioctl,
 916         .mmap = nouveau_ttm_mmap,
 917         .poll = drm_poll,
 918         .read = drm_read,
 919 #if defined(CONFIG_COMPAT)
 920         .compat_ioctl = nouveau_compat_ioctl,
 921 #endif
 922         .llseek = noop_llseek,
 923 };
 924
 925 static struct drm_driver
 926 driver_stub = {
 927         .driver_features =
 928                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 929                 DRIVER_KMS_LEGACY_CONTEXT,
 930
 931         .load = nouveau_drm_load,
 932         .unload = nouveau_drm_unload,
 933         .open = nouveau_drm_open,
 934         .preclose = nouveau_drm_preclose,
 935         .postclose = nouveau_drm_postclose,
 936         .lastclose = nouveau_vga_lastclose,
 937
 938 #if defined(CONFIG_DEBUG_FS)
 939         .debugfs_init = nouveau_drm_debugfs_init,
 940         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 941 #endif
 942
 943         .get_vblank_counter = drm_vblank_no_hw_counter,
 944         .enable_vblank = nouveau_display_vblank_enable,
 945         .disable_vblank = nouveau_display_vblank_disable,
 946         .get_scanout_position = nouveau_display_scanoutpos,
 947         .get_vblank_timestamp = nouveau_display_vblstamp,
 948
 949         .ioctls = nouveau_ioctls,
 950         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 951         .fops = &nouveau_driver_fops,
 952
 953         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 954         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 955         .gem_prime_export = drm_gem_prime_export,
 956         .gem_prime_import = drm_gem_prime_import,
 957         .gem_prime_pin = nouveau_gem_prime_pin,
 958         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 959         .gem_prime_unpin = nouveau_gem_prime_unpin,
 960         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 961         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 962         .gem_prime_vmap = nouveau_gem_prime_vmap,
 963         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 964
 965         .gem_free_object = nouveau_gem_object_del,
 966         .gem_open_object = nouveau_gem_object_open,
 967         .gem_close_object = nouveau_gem_object_close,
 968
 969         .dumb_create = nouveau_display_dumb_create,
 970         .dumb_map_offset = nouveau_display_dumb_map_offset,
 971         .dumb_destroy = drm_gem_dumb_destroy,
 972
 973         .name = DRIVER_NAME,
 974         .desc = DRIVER_DESC,
 975 #ifdef GIT_REVISION
 976         .date = GIT_REVISION,
 977 #else
 978         .date = DRIVER_DATE,
 979 #endif
 980         .major = DRIVER_MAJOR,
 981         .minor = DRIVER_MINOR,
 982         .patchlevel = DRIVER_PATCHLEVEL,
 983 };
 984
 985 static struct pci_device_id
 986 nouveau_drm_pci_table[] = {
 987         {
 988                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 989                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 990                 .class_mask  = 0xff << 16,
 991         },
 992         {
 993                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 994                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 995                 .class_mask  = 0xff << 16,
 996         },
 997         {}
 998 };
 999
1000 static void nouveau_display_options(void)
1001 {
1002         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1003
1004         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1005         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1006         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1007         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1008         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1009         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1010         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1011         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1012         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1013         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1014 }
1015
1016 static const struct dev_pm_ops nouveau_pm_ops = {
1017         .suspend = nouveau_pmops_suspend,
1018         .resume = nouveau_pmops_resume,
1019         .freeze = nouveau_pmops_freeze,
1020         .thaw = nouveau_pmops_thaw,
1021         .poweroff = nouveau_pmops_freeze,
1022         .restore = nouveau_pmops_resume,
1023         .runtime_suspend = nouveau_pmops_runtime_suspend,
1024         .runtime_resume = nouveau_pmops_runtime_resume,
1025         .runtime_idle = nouveau_pmops_runtime_idle,
1026 };
1027
1028 static struct pci_driver
1029 nouveau_drm_pci_driver = {
1030         .name = "nouveau",
1031         .id_table = nouveau_drm_pci_table,
1032         .probe = nouveau_drm_probe,
1033         .remove = nouveau_drm_remove,
1034         .driver.pm = &nouveau_pm_ops,
1035 };
1036
1037 struct drm_device *
1038 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1039                                struct platform_device *pdev,
1040                                struct nvkm_device **pdevice)
1041 {
1042         struct drm_device *drm;
1043         int err;
1044
1045         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1046                                     true, true, ~0ULL, pdevice);
1047         if (err)
1048                 goto err_free;
1049
1050         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1051         if (!drm) {
1052                 err = -ENOMEM;
1053                 goto err_free;
1054         }
1055
1056         drm->platformdev = pdev;
1057         platform_set_drvdata(pdev, drm);
1058
1059         return drm;
1060
1061 err_free:
1062         nvkm_device_del(pdevice);
1063
1064         return ERR_PTR(err);
1065 }
1066
1067 static int __init
1068 nouveau_drm_init(void)
1069 {
1070         driver_pci = driver_stub;
1071         driver_pci.set_busid = drm_pci_set_busid;
1072         driver_platform = driver_stub;
1073         driver_platform.set_busid = drm_platform_set_busid;
1074
1075         nouveau_display_options();
1076
1077         if (nouveau_modeset == -1) {
1078                 if (vgacon_text_force())
1079                         nouveau_modeset = 0;
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");