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/apple-gmux.h>
  26 #include <linux/console.h>
  27 #include <linux/delay.h>
  28 #include <linux/module.h>
  29 #include <linux/pci.h>
  30 #include <linux/pm_runtime.h>
  31 #include <linux/vgaarb.h>
  32 #include <linux/vga_switcheroo.h>
  33
  34 #include "drmP.h"
  35 #include "drm_crtc_helper.h"
  36
  37 #include <core/gpuobj.h>
  38 #include <core/option.h>
  39 #include <core/pci.h>
  40 #include <core/tegra.h>
  41
  42 #include <nvif/class.h>
  43 #include <nvif/cl0002.h>
  44 #include <nvif/cla06f.h>
  45 #include <nvif/if0004.h>
  46
  47 #include "nouveau_drv.h"
  48 #include "nouveau_dma.h"
  49 #include "nouveau_ttm.h"
  50 #include "nouveau_gem.h"
  51 #include "nouveau_vga.h"
  52 #include "nouveau_hwmon.h"
  53 #include "nouveau_acpi.h"
  54 #include "nouveau_bios.h"
  55 #include "nouveau_ioctl.h"
  56 #include "nouveau_abi16.h"
  57 #include "nouveau_fbcon.h"
  58 #include "nouveau_fence.h"
  59 #include "nouveau_debugfs.h"
  60 #include "nouveau_usif.h"
  61 #include "nouveau_connector.h"
  62 #include "nouveau_platform.h"
  63
  64 MODULE_PARM_DESC(config, "option string to pass to driver core");
  65 static char *nouveau_config;
  66 module_param_named(config, nouveau_config, charp, 0400);
  67
  68 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  69 static char *nouveau_debug;
  70 module_param_named(debug, nouveau_debug, charp, 0400);
  71
  72 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  73 static int nouveau_noaccel = 0;
  74 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  75
  76 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  77                           "0 = disabled, 1 = enabled, 2 = headless)");
  78 int nouveau_modeset = -1;
  79 module_param_named(modeset, nouveau_modeset, int, 0400);
  80
  81 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  82 int nouveau_runtime_pm = -1;
  83 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  84
  85 static struct drm_driver driver_stub;
  86 static struct drm_driver driver_pci;
  87 static struct drm_driver driver_platform;
  88
  89 static u64
  90 nouveau_pci_name(struct pci_dev *pdev)
  91 {
  92         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  93         name |= pdev->bus->number << 16;
  94         name |= PCI_SLOT(pdev->devfn) << 8;
  95         return name | PCI_FUNC(pdev->devfn);
  96 }
  97
  98 static u64
  99 nouveau_platform_name(struct platform_device *platformdev)
 100 {
 101         return platformdev->id;
 102 }
 103
 104 static u64
 105 nouveau_name(struct drm_device *dev)
 106 {
 107         if (dev->pdev)
 108                 return nouveau_pci_name(dev->pdev);
 109         else
 110                 return nouveau_platform_name(dev->platformdev);
 111 }
 112
 113 static int
 114 nouveau_cli_create(struct drm_device *dev, const char *sname,
 115                    int size, void **pcli)
 116 {
 117         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 118         int ret;
 119         if (cli) {
 120                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
 121                 cli->dev = dev;
 122
 123                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
 124                                        nouveau_config, nouveau_debug,
 125                                        &cli->base);
 126                 if (ret == 0) {
 127                         mutex_init(&cli->mutex);
 128                         usif_client_init(cli);
 129                 }
 130                 return ret;
 131         }
 132         return -ENOMEM;
 133 }
 134
 135 static void
 136 nouveau_cli_destroy(struct nouveau_cli *cli)
 137 {
 138         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 139         nvif_client_fini(&cli->base);
 140         usif_client_fini(cli);
 141         kfree(cli);
 142 }
 143
 144 static void
 145 nouveau_accel_fini(struct nouveau_drm *drm)
 146 {
 147         nouveau_channel_idle(drm->channel);
 148         nvif_object_fini(&drm->ntfy);
 149         nvkm_gpuobj_del(&drm->notify);
 150         nvif_notify_fini(&drm->flip);
 151         nvif_object_fini(&drm->nvsw);
 152         nouveau_channel_del(&drm->channel);
 153
 154         nouveau_channel_idle(drm->cechan);
 155         nvif_object_fini(&drm->ttm.copy);
 156         nouveau_channel_del(&drm->cechan);
 157
 158         if (drm->fence)
 159                 nouveau_fence(drm)->dtor(drm);
 160 }
 161
 162 static void
 163 nouveau_accel_init(struct nouveau_drm *drm)
 164 {
 165         struct nvif_device *device = &drm->device;
 166         struct nvif_sclass *sclass;
 167         u32 arg0, arg1;
 168         int ret, i, n;
 169
 170         if (nouveau_noaccel)
 171                 return;
 172
 173         /* initialise synchronisation routines */
 174         /*XXX: this is crap, but the fence/channel stuff is a little
 175          *     backwards in some places.  this will be fixed.
 176          */
 177         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 178         if (ret < 0)
 179                 return;
 180
 181         for (ret = -ENOSYS, i = 0; i < n; i++) {
 182                 switch (sclass[i].oclass) {
 183                 case NV03_CHANNEL_DMA:
 184                         ret = nv04_fence_create(drm);
 185                         break;
 186                 case NV10_CHANNEL_DMA:
 187                         ret = nv10_fence_create(drm);
 188                         break;
 189                 case NV17_CHANNEL_DMA:
 190                 case NV40_CHANNEL_DMA:
 191                         ret = nv17_fence_create(drm);
 192                         break;
 193                 case NV50_CHANNEL_GPFIFO:
 194                         ret = nv50_fence_create(drm);
 195                         break;
 196                 case G82_CHANNEL_GPFIFO:
 197                         ret = nv84_fence_create(drm);
 198                         break;
 199                 case FERMI_CHANNEL_GPFIFO:
 200                 case KEPLER_CHANNEL_GPFIFO_A:
 201                 case KEPLER_CHANNEL_GPFIFO_B:
 202                 case MAXWELL_CHANNEL_GPFIFO_A:
 203                         ret = nvc0_fence_create(drm);
 204                         break;
 205                 default:
 206                         break;
 207                 }
 208         }
 209
 210         nvif_object_sclass_put(&sclass);
 211         if (ret) {
 212                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 213                 nouveau_accel_fini(drm);
 214                 return;
 215         }
 216
 217         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 218                 ret = nouveau_channel_new(drm, &drm->device,
 219                                           NVA06F_V0_ENGINE_CE0 |
 220                                           NVA06F_V0_ENGINE_CE1,
 221                                           0, &drm->cechan);
 222                 if (ret)
 223                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 224
 225                 arg0 = NVA06F_V0_ENGINE_GR;
 226                 arg1 = 1;
 227         } else
 228         if (device->info.chipset >= 0xa3 &&
 229             device->info.chipset != 0xaa &&
 230             device->info.chipset != 0xac) {
 231                 ret = nouveau_channel_new(drm, &drm->device,
 232                                           NvDmaFB, NvDmaTT, &drm->cechan);
 233                 if (ret)
 234                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 235
 236                 arg0 = NvDmaFB;
 237                 arg1 = NvDmaTT;
 238         } else {
 239                 arg0 = NvDmaFB;
 240                 arg1 = NvDmaTT;
 241         }
 242
 243         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 244         if (ret) {
 245                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 246                 nouveau_accel_fini(drm);
 247                 return;
 248         }
 249
 250         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 251                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 252         if (ret == 0) {
 253                 ret = RING_SPACE(drm->channel, 2);
 254                 if (ret == 0) {
 255                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 256                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 257                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 258                         } else
 259                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 260                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 261                                 OUT_RING  (drm->channel, 0x001f0000);
 262                         }
 263                 }
 264
 265                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 266                                        false, NV04_NVSW_NTFY_UEVENT,
 267                                        NULL, 0, 0, &drm->flip);
 268                 if (ret == 0)
 269                         ret = nvif_notify_get(&drm->flip);
 270                 if (ret) {
 271                         nouveau_accel_fini(drm);
 272                         return;
 273                 }
 274         }
 275
 276         if (ret) {
 277                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 278                 nouveau_accel_fini(drm);
 279                 return;
 280         }
 281
 282         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 283                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 284                                       NULL, &drm->notify);
 285                 if (ret) {
 286                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 287                         nouveau_accel_fini(drm);
 288                         return;
 289                 }
 290
 291                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 292                                        NV_DMA_IN_MEMORY,
 293                                        &(struct nv_dma_v0) {
 294                                                 .target = NV_DMA_V0_TARGET_VRAM,
 295                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 296                                                 .start = drm->notify->addr,
 297                                                 .limit = drm->notify->addr + 31
 298                                        }, sizeof(struct nv_dma_v0),
 299                                        &drm->ntfy);
 300                 if (ret) {
 301                         nouveau_accel_fini(drm);
 302                         return;
 303                 }
 304         }
 305
 306
 307         nouveau_bo_move_init(drm);
 308 }
 309
 310 static int nouveau_drm_probe(struct pci_dev *pdev,
 311                              const struct pci_device_id *pent)
 312 {
 313         struct nvkm_device *device;
 314         struct apertures_struct *aper;
 315         bool boot = false;
 316         int ret;
 317
 318         /*
 319          * apple-gmux is needed on dual GPU MacBook Pro
 320          * to probe the panel if we're the inactive GPU.
 321          */
 322         if (IS_ENABLED(CONFIG_VGA_ARB) && IS_ENABLED(CONFIG_VGA_SWITCHEROO) &&
 323             apple_gmux_present() && pdev != vga_default_device() &&
 324             !vga_switcheroo_handler_flags())
 325                 return -EPROBE_DEFER;
 326
 327         /* remove conflicting drivers (vesafb, efifb etc) */
 328         aper = alloc_apertures(3);
 329         if (!aper)
 330                 return -ENOMEM;
 331
 332         aper->ranges[0].base = pci_resource_start(pdev, 1);
 333         aper->ranges[0].size = pci_resource_len(pdev, 1);
 334         aper->count = 1;
 335
 336         if (pci_resource_len(pdev, 2)) {
 337                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 338                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 339                 aper->count++;
 340         }
 341
 342         if (pci_resource_len(pdev, 3)) {
 343                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 344                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 345                 aper->count++;
 346         }
 347
 348 #ifdef CONFIG_X86
 349         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 350 #endif
 351         if (nouveau_modeset != 2)
 352                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 353         kfree(aper);
 354
 355         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 356                                   true, true, ~0ULL, &device);
 357         if (ret)
 358                 return ret;
 359
 360         pci_set_master(pdev);
 361
 362         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 363         if (ret) {
 364                 nvkm_device_del(&device);
 365                 return ret;
 366         }
 367
 368         return 0;
 369 }
 370
 371 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 372
 373 static void
 374 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 375 {
 376         struct pci_dev *pdev = drm->dev->pdev;
 377
 378         if (!pdev) {
 379                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
 380                 drm->hdmi_device = NULL;
 381                 return;
 382         }
 383
 384         /* subfunction one is a hdmi audio device? */
 385         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 386                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 387
 388         if (!drm->hdmi_device) {
 389                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 390                 return;
 391         }
 392
 393         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 394                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 395                 pci_dev_put(drm->hdmi_device);
 396                 drm->hdmi_device = NULL;
 397                 return;
 398         }
 399 }
 400
 401 static int
 402 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 403 {
 404         struct nouveau_drm *drm;
 405         int ret;
 406
 407         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 408         if (ret)
 409                 return ret;
 410
 411         dev->dev_private = drm;
 412         drm->dev = dev;
 413         nvxx_client(&drm->client.base)->debug =
 414                 nvkm_dbgopt(nouveau_debug, "DRM");
 415
 416         INIT_LIST_HEAD(&drm->clients);
 417         spin_lock_init(&drm->tile.lock);
 418
 419         nouveau_get_hdmi_dev(drm);
 420
 421         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 422                                &(struct nv_device_v0) {
 423                                         .device = ~0,
 424                                }, sizeof(struct nv_device_v0),
 425                                &drm->device);
 426         if (ret)
 427                 goto fail_device;
 428
 429         dev->irq_enabled = true;
 430
 431         /* workaround an odd issue on nvc1 by disabling the device's
 432          * nosnoop capability.  hopefully won't cause issues until a
 433          * better fix is found - assuming there is one...
 434          */
 435         if (drm->device.info.chipset == 0xc1)
 436                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 437
 438         nouveau_vga_init(drm);
 439
 440         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 441                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 442                                   0x1000, NULL, &drm->client.vm);
 443                 if (ret)
 444                         goto fail_device;
 445
 446                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 447         }
 448
 449         ret = nouveau_ttm_init(drm);
 450         if (ret)
 451                 goto fail_ttm;
 452
 453         ret = nouveau_bios_init(dev);
 454         if (ret)
 455                 goto fail_bios;
 456
 457         ret = nouveau_display_create(dev);
 458         if (ret)
 459                 goto fail_dispctor;
 460
 461         if (dev->mode_config.num_crtc) {
 462                 ret = nouveau_display_init(dev);
 463                 if (ret)
 464                         goto fail_dispinit;
 465         }
 466
 467         nouveau_debugfs_init(drm);
 468         nouveau_hwmon_init(dev);
 469         nouveau_accel_init(drm);
 470         nouveau_fbcon_init(dev);
 471
 472         if (nouveau_runtime_pm != 0) {
 473                 pm_runtime_use_autosuspend(dev->dev);
 474                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 475                 pm_runtime_set_active(dev->dev);
 476                 pm_runtime_allow(dev->dev);
 477                 pm_runtime_mark_last_busy(dev->dev);
 478                 pm_runtime_put(dev->dev);
 479         }
 480         return 0;
 481
 482 fail_dispinit:
 483         nouveau_display_destroy(dev);
 484 fail_dispctor:
 485         nouveau_bios_takedown(dev);
 486 fail_bios:
 487         nouveau_ttm_fini(drm);
 488 fail_ttm:
 489         nouveau_vga_fini(drm);
 490 fail_device:
 491         nvif_device_fini(&drm->device);
 492         nouveau_cli_destroy(&drm->client);
 493         return ret;
 494 }
 495
 496 static int
 497 nouveau_drm_unload(struct drm_device *dev)
 498 {
 499         struct nouveau_drm *drm = nouveau_drm(dev);
 500
 501         pm_runtime_get_sync(dev->dev);
 502         nouveau_fbcon_fini(dev);
 503         nouveau_accel_fini(drm);
 504         nouveau_hwmon_fini(dev);
 505         nouveau_debugfs_fini(drm);
 506
 507         if (dev->mode_config.num_crtc)
 508                 nouveau_display_fini(dev);
 509         nouveau_display_destroy(dev);
 510
 511         nouveau_bios_takedown(dev);
 512
 513         nouveau_ttm_fini(drm);
 514         nouveau_vga_fini(drm);
 515
 516         nvif_device_fini(&drm->device);
 517         if (drm->hdmi_device)
 518                 pci_dev_put(drm->hdmi_device);
 519         nouveau_cli_destroy(&drm->client);
 520         return 0;
 521 }
 522
 523 void
 524 nouveau_drm_device_remove(struct drm_device *dev)
 525 {
 526         struct nouveau_drm *drm = nouveau_drm(dev);
 527         struct nvkm_client *client;
 528         struct nvkm_device *device;
 529
 530         dev->irq_enabled = false;
 531         client = nvxx_client(&drm->client.base);
 532         device = nvkm_device_find(client->device);
 533         drm_put_dev(dev);
 534
 535         nvkm_device_del(&device);
 536 }
 537
 538 static void
 539 nouveau_drm_remove(struct pci_dev *pdev)
 540 {
 541         struct drm_device *dev = pci_get_drvdata(pdev);
 542
 543         nouveau_drm_device_remove(dev);
 544 }
 545
 546 static int
 547 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 548 {
 549         struct nouveau_drm *drm = nouveau_drm(dev);
 550         struct nouveau_cli *cli;
 551         int ret;
 552
 553         if (dev->mode_config.num_crtc) {
 554                 NV_INFO(drm, "suspending console...\n");
 555                 nouveau_fbcon_set_suspend(dev, 1);
 556                 NV_INFO(drm, "suspending display...\n");
 557                 ret = nouveau_display_suspend(dev, runtime);
 558                 if (ret)
 559                         return ret;
 560         }
 561
 562         NV_INFO(drm, "evicting buffers...\n");
 563         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 564
 565         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 566         if (drm->cechan) {
 567                 ret = nouveau_channel_idle(drm->cechan);
 568                 if (ret)
 569                         goto fail_display;
 570         }
 571
 572         if (drm->channel) {
 573                 ret = nouveau_channel_idle(drm->channel);
 574                 if (ret)
 575                         goto fail_display;
 576         }
 577
 578         NV_INFO(drm, "suspending client object trees...\n");
 579         if (drm->fence && nouveau_fence(drm)->suspend) {
 580                 if (!nouveau_fence(drm)->suspend(drm)) {
 581                         ret = -ENOMEM;
 582                         goto fail_display;
 583                 }
 584         }
 585
 586         list_for_each_entry(cli, &drm->clients, head) {
 587                 ret = nvif_client_suspend(&cli->base);
 588                 if (ret)
 589                         goto fail_client;
 590         }
 591
 592         NV_INFO(drm, "suspending kernel object tree...\n");
 593         ret = nvif_client_suspend(&drm->client.base);
 594         if (ret)
 595                 goto fail_client;
 596
 597         return 0;
 598
 599 fail_client:
 600         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 601                 nvif_client_resume(&cli->base);
 602         }
 603
 604         if (drm->fence && nouveau_fence(drm)->resume)
 605                 nouveau_fence(drm)->resume(drm);
 606
 607 fail_display:
 608         if (dev->mode_config.num_crtc) {
 609                 NV_INFO(drm, "resuming display...\n");
 610                 nouveau_display_resume(dev, runtime);
 611         }
 612         return ret;
 613 }
 614
 615 static int
 616 nouveau_do_resume(struct drm_device *dev, bool runtime)
 617 {
 618         struct nouveau_drm *drm = nouveau_drm(dev);
 619         struct nouveau_cli *cli;
 620
 621         NV_INFO(drm, "resuming kernel object tree...\n");
 622         nvif_client_resume(&drm->client.base);
 623
 624         NV_INFO(drm, "resuming client object trees...\n");
 625         if (drm->fence && nouveau_fence(drm)->resume)
 626                 nouveau_fence(drm)->resume(drm);
 627
 628         list_for_each_entry(cli, &drm->clients, head) {
 629                 nvif_client_resume(&cli->base);
 630         }
 631
 632         nouveau_run_vbios_init(dev);
 633
 634         if (dev->mode_config.num_crtc) {
 635                 NV_INFO(drm, "resuming display...\n");
 636                 nouveau_display_resume(dev, runtime);
 637                 NV_INFO(drm, "resuming console...\n");
 638                 nouveau_fbcon_set_suspend(dev, 0);
 639         }
 640
 641         return 0;
 642 }
 643
 644 int
 645 nouveau_pmops_suspend(struct device *dev)
 646 {
 647         struct pci_dev *pdev = to_pci_dev(dev);
 648         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 649         int ret;
 650
 651         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 652             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 653                 return 0;
 654
 655         ret = nouveau_do_suspend(drm_dev, false);
 656         if (ret)
 657                 return ret;
 658
 659         pci_save_state(pdev);
 660         pci_disable_device(pdev);
 661         pci_set_power_state(pdev, PCI_D3hot);
 662         udelay(200);
 663         return 0;
 664 }
 665
 666 int
 667 nouveau_pmops_resume(struct device *dev)
 668 {
 669         struct pci_dev *pdev = to_pci_dev(dev);
 670         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 671         int ret;
 672
 673         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 674             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 675                 return 0;
 676
 677         pci_set_power_state(pdev, PCI_D0);
 678         pci_restore_state(pdev);
 679         ret = pci_enable_device(pdev);
 680         if (ret)
 681                 return ret;
 682         pci_set_master(pdev);
 683
 684         return nouveau_do_resume(drm_dev, false);
 685 }
 686
 687 static int
 688 nouveau_pmops_freeze(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_suspend(drm_dev, false);
 693 }
 694
 695 static int
 696 nouveau_pmops_thaw(struct device *dev)
 697 {
 698         struct pci_dev *pdev = to_pci_dev(dev);
 699         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 700         return nouveau_do_resume(drm_dev, false);
 701 }
 702
 703 static int
 704 nouveau_pmops_runtime_suspend(struct device *dev)
 705 {
 706         struct pci_dev *pdev = to_pci_dev(dev);
 707         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 708         int ret;
 709
 710         if (nouveau_runtime_pm == 0) {
 711                 pm_runtime_forbid(dev);
 712                 return -EBUSY;
 713         }
 714
 715         /* are we optimus enabled? */
 716         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 717                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 718                 pm_runtime_forbid(dev);
 719                 return -EBUSY;
 720         }
 721
 722         drm_kms_helper_poll_disable(drm_dev);
 723         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 724         nouveau_switcheroo_optimus_dsm();
 725         ret = nouveau_do_suspend(drm_dev, true);
 726         pci_save_state(pdev);
 727         pci_disable_device(pdev);
 728         pci_ignore_hotplug(pdev);
 729         pci_set_power_state(pdev, PCI_D3cold);
 730         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 731         return ret;
 732 }
 733
 734 static int
 735 nouveau_pmops_runtime_resume(struct device *dev)
 736 {
 737         struct pci_dev *pdev = to_pci_dev(dev);
 738         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 739         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 740         int ret;
 741
 742         if (nouveau_runtime_pm == 0)
 743                 return -EINVAL;
 744
 745         pci_set_power_state(pdev, PCI_D0);
 746         pci_restore_state(pdev);
 747         ret = pci_enable_device(pdev);
 748         if (ret)
 749                 return ret;
 750         pci_set_master(pdev);
 751
 752         ret = nouveau_do_resume(drm_dev, true);
 753         drm_kms_helper_poll_enable(drm_dev);
 754         /* do magic */
 755         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 756         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 757         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 758         return ret;
 759 }
 760
 761 static int
 762 nouveau_pmops_runtime_idle(struct device *dev)
 763 {
 764         struct pci_dev *pdev = to_pci_dev(dev);
 765         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 766         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 767         struct drm_crtc *crtc;
 768
 769         if (nouveau_runtime_pm == 0) {
 770                 pm_runtime_forbid(dev);
 771                 return -EBUSY;
 772         }
 773
 774         /* are we optimus enabled? */
 775         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 776                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 777                 pm_runtime_forbid(dev);
 778                 return -EBUSY;
 779         }
 780
 781         /* if we have a hdmi audio device - make sure it has a driver loaded */
 782         if (drm->hdmi_device) {
 783                 if (!drm->hdmi_device->driver) {
 784                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 785                         pm_runtime_mark_last_busy(dev);
 786                         return -EBUSY;
 787                 }
 788         }
 789
 790         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 791                 if (crtc->enabled) {
 792                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 793                         return -EBUSY;
 794                 }
 795         }
 796         pm_runtime_mark_last_busy(dev);
 797         pm_runtime_autosuspend(dev);
 798         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 799         return 1;
 800 }
 801
 802 static int
 803 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 804 {
 805         struct nouveau_drm *drm = nouveau_drm(dev);
 806         struct nouveau_cli *cli;
 807         char name[32], tmpname[TASK_COMM_LEN];
 808         int ret;
 809
 810         /* need to bring up power immediately if opening device */
 811         ret = pm_runtime_get_sync(dev->dev);
 812         if (ret < 0 && ret != -EACCES)
 813                 return ret;
 814
 815         get_task_comm(tmpname, current);
 816         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 817
 818         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 819
 820         if (ret)
 821                 goto out_suspend;
 822
 823         cli->base.super = false;
 824
 825         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 826                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 827                                   0x1000, NULL, &cli->vm);
 828                 if (ret) {
 829                         nouveau_cli_destroy(cli);
 830                         goto out_suspend;
 831                 }
 832
 833                 nvxx_client(&cli->base)->vm = cli->vm;
 834         }
 835
 836         fpriv->driver_priv = cli;
 837
 838         mutex_lock(&drm->client.mutex);
 839         list_add(&cli->head, &drm->clients);
 840         mutex_unlock(&drm->client.mutex);
 841
 842 out_suspend:
 843         pm_runtime_mark_last_busy(dev->dev);
 844         pm_runtime_put_autosuspend(dev->dev);
 845
 846         return ret;
 847 }
 848
 849 static void
 850 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 851 {
 852         struct nouveau_cli *cli = nouveau_cli(fpriv);
 853         struct nouveau_drm *drm = nouveau_drm(dev);
 854
 855         pm_runtime_get_sync(dev->dev);
 856
 857         mutex_lock(&cli->mutex);
 858         if (cli->abi16)
 859                 nouveau_abi16_fini(cli->abi16);
 860         mutex_unlock(&cli->mutex);
 861
 862         mutex_lock(&drm->client.mutex);
 863         list_del(&cli->head);
 864         mutex_unlock(&drm->client.mutex);
 865
 866 }
 867
 868 static void
 869 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 870 {
 871         struct nouveau_cli *cli = nouveau_cli(fpriv);
 872         nouveau_cli_destroy(cli);
 873         pm_runtime_mark_last_busy(dev->dev);
 874         pm_runtime_put_autosuspend(dev->dev);
 875 }
 876
 877 static const struct drm_ioctl_desc
 878 nouveau_ioctls[] = {
 879         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 880         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 881         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 882         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 883         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 884         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 885         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 886         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 887         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 888         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 889         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 890         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 891 };
 892
 893 long
 894 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 895 {
 896         struct drm_file *filp = file->private_data;
 897         struct drm_device *dev = filp->minor->dev;
 898         long ret;
 899
 900         ret = pm_runtime_get_sync(dev->dev);
 901         if (ret < 0 && ret != -EACCES)
 902                 return ret;
 903
 904         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 905         case DRM_NOUVEAU_NVIF:
 906                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 907                 break;
 908         default:
 909                 ret = drm_ioctl(file, cmd, arg);
 910                 break;
 911         }
 912
 913         pm_runtime_mark_last_busy(dev->dev);
 914         pm_runtime_put_autosuspend(dev->dev);
 915         return ret;
 916 }
 917
 918 static const struct file_operations
 919 nouveau_driver_fops = {
 920         .owner = THIS_MODULE,
 921         .open = drm_open,
 922         .release = drm_release,
 923         .unlocked_ioctl = nouveau_drm_ioctl,
 924         .mmap = nouveau_ttm_mmap,
 925         .poll = drm_poll,
 926         .read = drm_read,
 927 #if defined(CONFIG_COMPAT)
 928         .compat_ioctl = nouveau_compat_ioctl,
 929 #endif
 930         .llseek = noop_llseek,
 931 };
 932
 933 static struct drm_driver
 934 driver_stub = {
 935         .driver_features =
 936                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 937                 DRIVER_KMS_LEGACY_CONTEXT,
 938
 939         .load = nouveau_drm_load,
 940         .unload = nouveau_drm_unload,
 941         .open = nouveau_drm_open,
 942         .preclose = nouveau_drm_preclose,
 943         .postclose = nouveau_drm_postclose,
 944         .lastclose = nouveau_vga_lastclose,
 945
 946 #if defined(CONFIG_DEBUG_FS)
 947         .debugfs_init = nouveau_drm_debugfs_init,
 948         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 949 #endif
 950
 951         .get_vblank_counter = drm_vblank_no_hw_counter,
 952         .enable_vblank = nouveau_display_vblank_enable,
 953         .disable_vblank = nouveau_display_vblank_disable,
 954         .get_scanout_position = nouveau_display_scanoutpos,
 955         .get_vblank_timestamp = nouveau_display_vblstamp,
 956
 957         .ioctls = nouveau_ioctls,
 958         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 959         .fops = &nouveau_driver_fops,
 960
 961         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 962         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 963         .gem_prime_export = drm_gem_prime_export,
 964         .gem_prime_import = drm_gem_prime_import,
 965         .gem_prime_pin = nouveau_gem_prime_pin,
 966         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 967         .gem_prime_unpin = nouveau_gem_prime_unpin,
 968         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 969         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 970         .gem_prime_vmap = nouveau_gem_prime_vmap,
 971         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 972
 973         .gem_free_object = nouveau_gem_object_del,
 974         .gem_open_object = nouveau_gem_object_open,
 975         .gem_close_object = nouveau_gem_object_close,
 976
 977         .dumb_create = nouveau_display_dumb_create,
 978         .dumb_map_offset = nouveau_display_dumb_map_offset,
 979         .dumb_destroy = drm_gem_dumb_destroy,
 980
 981         .name = DRIVER_NAME,
 982         .desc = DRIVER_DESC,
 983 #ifdef GIT_REVISION
 984         .date = GIT_REVISION,
 985 #else
 986         .date = DRIVER_DATE,
 987 #endif
 988         .major = DRIVER_MAJOR,
 989         .minor = DRIVER_MINOR,
 990         .patchlevel = DRIVER_PATCHLEVEL,
 991 };
 992
 993 static struct pci_device_id
 994 nouveau_drm_pci_table[] = {
 995         {
 996                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 997                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 998                 .class_mask  = 0xff << 16,
 999         },
1000         {
1001                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1002                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1003                 .class_mask  = 0xff << 16,
1004         },
1005         {}
1006 };
1007
1008 static void nouveau_display_options(void)
1009 {
1010         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1011
1012         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1013         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1014         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1015         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1016         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1017         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1018         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1019         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1020         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1021         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1022 }
1023
1024 static const struct dev_pm_ops nouveau_pm_ops = {
1025         .suspend = nouveau_pmops_suspend,
1026         .resume = nouveau_pmops_resume,
1027         .freeze = nouveau_pmops_freeze,
1028         .thaw = nouveau_pmops_thaw,
1029         .poweroff = nouveau_pmops_freeze,
1030         .restore = nouveau_pmops_resume,
1031         .runtime_suspend = nouveau_pmops_runtime_suspend,
1032         .runtime_resume = nouveau_pmops_runtime_resume,
1033         .runtime_idle = nouveau_pmops_runtime_idle,
1034 };
1035
1036 static struct pci_driver
1037 nouveau_drm_pci_driver = {
1038         .name = "nouveau",
1039         .id_table = nouveau_drm_pci_table,
1040         .probe = nouveau_drm_probe,
1041         .remove = nouveau_drm_remove,
1042         .driver.pm = &nouveau_pm_ops,
1043 };
1044
1045 struct drm_device *
1046 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1047                                struct platform_device *pdev,
1048                                struct nvkm_device **pdevice)
1049 {
1050         struct drm_device *drm;
1051         int err;
1052
1053         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1054                                     true, true, ~0ULL, pdevice);
1055         if (err)
1056                 goto err_free;
1057
1058         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1059         if (!drm) {
1060                 err = -ENOMEM;
1061                 goto err_free;
1062         }
1063
1064         drm->platformdev = pdev;
1065         platform_set_drvdata(pdev, drm);
1066
1067         return drm;
1068
1069 err_free:
1070         nvkm_device_del(pdevice);
1071
1072         return ERR_PTR(err);
1073 }
1074
1075 static int __init
1076 nouveau_drm_init(void)
1077 {
1078         driver_pci = driver_stub;
1079         driver_pci.set_busid = drm_pci_set_busid;
1080         driver_platform = driver_stub;
1081         driver_platform.set_busid = drm_platform_set_busid;
1082
1083         nouveau_display_options();
1084
1085         if (nouveau_modeset == -1) {
1086                 if (vgacon_text_force())
1087                         nouveau_modeset = 0;
1088         }
1089
1090         if (!nouveau_modeset)
1091                 return 0;
1092
1093 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1094         platform_driver_register(&nouveau_platform_driver);
1095 #endif
1096
1097         nouveau_register_dsm_handler();
1098         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1099 }
1100
1101 static void __exit
1102 nouveau_drm_exit(void)
1103 {
1104         if (!nouveau_modeset)
1105                 return;
1106
1107         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1108         nouveau_unregister_dsm_handler();
1109
1110 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1111         platform_driver_unregister(&nouveau_platform_driver);
1112 #endif
1113 }
1114
1115 module_init(nouveau_drm_init);
1116 module_exit(nouveau_drm_exit);
1117
1118 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1119 MODULE_AUTHOR(DRIVER_AUTHOR);
1120 MODULE_DESCRIPTION(DRIVER_DESC);
1121 MODULE_LICENSE("GPL and additional rights");