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                 case PASCAL_CHANNEL_GPFIFO_A:
 202                         ret = nvc0_fence_create(drm);
 203                         break;
 204                 default:
 205                         break;
 206                 }
 207         }
 208
 209         nvif_object_sclass_put(&sclass);
 210         if (ret) {
 211                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 212                 nouveau_accel_fini(drm);
 213                 return;
 214         }
 215
 216         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 217                 ret = nouveau_channel_new(drm, &drm->device,
 218                                           NVA06F_V0_ENGINE_CE0 |
 219                                           NVA06F_V0_ENGINE_CE1,
 220                                           0, &drm->cechan);
 221                 if (ret)
 222                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 223
 224                 arg0 = NVA06F_V0_ENGINE_GR;
 225                 arg1 = 1;
 226         } else
 227         if (device->info.chipset >= 0xa3 &&
 228             device->info.chipset != 0xaa &&
 229             device->info.chipset != 0xac) {
 230                 ret = nouveau_channel_new(drm, &drm->device,
 231                                           NvDmaFB, NvDmaTT, &drm->cechan);
 232                 if (ret)
 233                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 234
 235                 arg0 = NvDmaFB;
 236                 arg1 = NvDmaTT;
 237         } else {
 238                 arg0 = NvDmaFB;
 239                 arg1 = NvDmaTT;
 240         }
 241
 242         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 243         if (ret) {
 244                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 245                 nouveau_accel_fini(drm);
 246                 return;
 247         }
 248
 249         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 250                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 251         if (ret == 0) {
 252                 ret = RING_SPACE(drm->channel, 2);
 253                 if (ret == 0) {
 254                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 255                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 256                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 257                         } else
 258                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 259                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 260                                 OUT_RING  (drm->channel, 0x001f0000);
 261                         }
 262                 }
 263
 264                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 265                                        false, NV04_NVSW_NTFY_UEVENT,
 266                                        NULL, 0, 0, &drm->flip);
 267                 if (ret == 0)
 268                         ret = nvif_notify_get(&drm->flip);
 269                 if (ret) {
 270                         nouveau_accel_fini(drm);
 271                         return;
 272                 }
 273         }
 274
 275         if (ret) {
 276                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 277                 nouveau_accel_fini(drm);
 278                 return;
 279         }
 280
 281         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 282                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 283                                       NULL, &drm->notify);
 284                 if (ret) {
 285                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 286                         nouveau_accel_fini(drm);
 287                         return;
 288                 }
 289
 290                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 291                                        NV_DMA_IN_MEMORY,
 292                                        &(struct nv_dma_v0) {
 293                                                 .target = NV_DMA_V0_TARGET_VRAM,
 294                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 295                                                 .start = drm->notify->addr,
 296                                                 .limit = drm->notify->addr + 31
 297                                        }, sizeof(struct nv_dma_v0),
 298                                        &drm->ntfy);
 299                 if (ret) {
 300                         nouveau_accel_fini(drm);
 301                         return;
 302                 }
 303         }
 304
 305
 306         nouveau_bo_move_init(drm);
 307 }
 308
 309 static int nouveau_drm_probe(struct pci_dev *pdev,
 310                              const struct pci_device_id *pent)
 311 {
 312         struct nvkm_device *device;
 313         struct apertures_struct *aper;
 314         bool boot = false;
 315         int ret;
 316
 317         if (vga_switcheroo_client_probe_defer(pdev))
 318                 return -EPROBE_DEFER;
 319
 320         /* We need to check that the chipset is supported before booting
 321          * fbdev off the hardware, as there's no way to put it back.
 322          */
 323         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 324         if (ret)
 325                 return ret;
 326
 327         nvkm_device_del(&device);
 328
 329         /* Remove conflicting drivers (vesafb, efifb etc). */
 330         aper = alloc_apertures(3);
 331         if (!aper)
 332                 return -ENOMEM;
 333
 334         aper->ranges[0].base = pci_resource_start(pdev, 1);
 335         aper->ranges[0].size = pci_resource_len(pdev, 1);
 336         aper->count = 1;
 337
 338         if (pci_resource_len(pdev, 2)) {
 339                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 340                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 341                 aper->count++;
 342         }
 343
 344         if (pci_resource_len(pdev, 3)) {
 345                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 346                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 347                 aper->count++;
 348         }
 349
 350 #ifdef CONFIG_X86
 351         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 352 #endif
 353         if (nouveau_modeset != 2)
 354                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 355         kfree(aper);
 356
 357         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 358                                   true, true, ~0ULL, &device);
 359         if (ret)
 360                 return ret;
 361
 362         pci_set_master(pdev);
 363
 364         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 365         if (ret) {
 366                 nvkm_device_del(&device);
 367                 return ret;
 368         }
 369
 370         return 0;
 371 }
 372
 373 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 374
 375 static void
 376 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 377 {
 378         struct pci_dev *pdev = drm->dev->pdev;
 379
 380         if (!pdev) {
 381                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
 382                 drm->hdmi_device = NULL;
 383                 return;
 384         }
 385
 386         /* subfunction one is a hdmi audio device? */
 387         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 388                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 389
 390         if (!drm->hdmi_device) {
 391                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 392                 return;
 393         }
 394
 395         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 396                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 397                 pci_dev_put(drm->hdmi_device);
 398                 drm->hdmi_device = NULL;
 399                 return;
 400         }
 401 }
 402
 403 static int
 404 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 405 {
 406         struct nouveau_drm *drm;
 407         int ret;
 408
 409         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 410         if (ret)
 411                 return ret;
 412
 413         dev->dev_private = drm;
 414         drm->dev = dev;
 415         nvxx_client(&drm->client.base)->debug =
 416                 nvkm_dbgopt(nouveau_debug, "DRM");
 417
 418         INIT_LIST_HEAD(&drm->clients);
 419         spin_lock_init(&drm->tile.lock);
 420
 421         nouveau_get_hdmi_dev(drm);
 422
 423         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 424                                &(struct nv_device_v0) {
 425                                         .device = ~0,
 426                                }, sizeof(struct nv_device_v0),
 427                                &drm->device);
 428         if (ret)
 429                 goto fail_device;
 430
 431         dev->irq_enabled = true;
 432
 433         /* workaround an odd issue on nvc1 by disabling the device's
 434          * nosnoop capability.  hopefully won't cause issues until a
 435          * better fix is found - assuming there is one...
 436          */
 437         if (drm->device.info.chipset == 0xc1)
 438                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 439
 440         nouveau_vga_init(drm);
 441
 442         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 443                 if (!nvxx_device(&drm->device)->mmu) {
 444                         ret = -ENOSYS;
 445                         goto fail_device;
 446                 }
 447
 448                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 449                                   0x1000, NULL, &drm->client.vm);
 450                 if (ret)
 451                         goto fail_device;
 452
 453                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 454         }
 455
 456         ret = nouveau_ttm_init(drm);
 457         if (ret)
 458                 goto fail_ttm;
 459
 460         ret = nouveau_bios_init(dev);
 461         if (ret)
 462                 goto fail_bios;
 463
 464         ret = nouveau_display_create(dev);
 465         if (ret)
 466                 goto fail_dispctor;
 467
 468         if (dev->mode_config.num_crtc) {
 469                 ret = nouveau_display_init(dev);
 470                 if (ret)
 471                         goto fail_dispinit;
 472         }
 473
 474         nouveau_debugfs_init(drm);
 475         nouveau_hwmon_init(dev);
 476         nouveau_accel_init(drm);
 477         nouveau_fbcon_init(dev);
 478
 479         if (nouveau_runtime_pm != 0) {
 480                 pm_runtime_use_autosuspend(dev->dev);
 481                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 482                 pm_runtime_set_active(dev->dev);
 483                 pm_runtime_allow(dev->dev);
 484                 pm_runtime_mark_last_busy(dev->dev);
 485                 pm_runtime_put(dev->dev);
 486         }
 487         return 0;
 488
 489 fail_dispinit:
 490         nouveau_display_destroy(dev);
 491 fail_dispctor:
 492         nouveau_bios_takedown(dev);
 493 fail_bios:
 494         nouveau_ttm_fini(drm);
 495 fail_ttm:
 496         nouveau_vga_fini(drm);
 497 fail_device:
 498         nvif_device_fini(&drm->device);
 499         nouveau_cli_destroy(&drm->client);
 500         return ret;
 501 }
 502
 503 static int
 504 nouveau_drm_unload(struct drm_device *dev)
 505 {
 506         struct nouveau_drm *drm = nouveau_drm(dev);
 507
 508         if (nouveau_runtime_pm != 0) {
 509                 pm_runtime_get_sync(dev->dev);
 510                 pm_runtime_forbid(dev->dev);
 511         }
 512
 513         nouveau_fbcon_fini(dev);
 514         nouveau_accel_fini(drm);
 515         nouveau_hwmon_fini(dev);
 516         nouveau_debugfs_fini(drm);
 517
 518         if (dev->mode_config.num_crtc)
 519                 nouveau_display_fini(dev);
 520         nouveau_display_destroy(dev);
 521
 522         nouveau_bios_takedown(dev);
 523
 524         nouveau_ttm_fini(drm);
 525         nouveau_vga_fini(drm);
 526
 527         nvif_device_fini(&drm->device);
 528         if (drm->hdmi_device)
 529                 pci_dev_put(drm->hdmi_device);
 530         nouveau_cli_destroy(&drm->client);
 531         return 0;
 532 }
 533
 534 void
 535 nouveau_drm_device_remove(struct drm_device *dev)
 536 {
 537         struct nouveau_drm *drm = nouveau_drm(dev);
 538         struct nvkm_client *client;
 539         struct nvkm_device *device;
 540
 541         dev->irq_enabled = false;
 542         client = nvxx_client(&drm->client.base);
 543         device = nvkm_device_find(client->device);
 544         drm_put_dev(dev);
 545
 546         nvkm_device_del(&device);
 547 }
 548
 549 static void
 550 nouveau_drm_remove(struct pci_dev *pdev)
 551 {
 552         struct drm_device *dev = pci_get_drvdata(pdev);
 553
 554         nouveau_drm_device_remove(dev);
 555 }
 556
 557 static int
 558 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 559 {
 560         struct nouveau_drm *drm = nouveau_drm(dev);
 561         struct nouveau_cli *cli;
 562         int ret;
 563
 564         if (dev->mode_config.num_crtc) {
 565                 NV_INFO(drm, "suspending console...\n");
 566                 nouveau_fbcon_set_suspend(dev, 1);
 567                 NV_INFO(drm, "suspending display...\n");
 568                 ret = nouveau_display_suspend(dev, runtime);
 569                 if (ret)
 570                         return ret;
 571         }
 572
 573         NV_INFO(drm, "evicting buffers...\n");
 574         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 575
 576         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 577         if (drm->cechan) {
 578                 ret = nouveau_channel_idle(drm->cechan);
 579                 if (ret)
 580                         goto fail_display;
 581         }
 582
 583         if (drm->channel) {
 584                 ret = nouveau_channel_idle(drm->channel);
 585                 if (ret)
 586                         goto fail_display;
 587         }
 588
 589         NV_INFO(drm, "suspending client object trees...\n");
 590         if (drm->fence && nouveau_fence(drm)->suspend) {
 591                 if (!nouveau_fence(drm)->suspend(drm)) {
 592                         ret = -ENOMEM;
 593                         goto fail_display;
 594                 }
 595         }
 596
 597         list_for_each_entry(cli, &drm->clients, head) {
 598                 ret = nvif_client_suspend(&cli->base);
 599                 if (ret)
 600                         goto fail_client;
 601         }
 602
 603         NV_INFO(drm, "suspending kernel object tree...\n");
 604         ret = nvif_client_suspend(&drm->client.base);
 605         if (ret)
 606                 goto fail_client;
 607
 608         return 0;
 609
 610 fail_client:
 611         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 612                 nvif_client_resume(&cli->base);
 613         }
 614
 615         if (drm->fence && nouveau_fence(drm)->resume)
 616                 nouveau_fence(drm)->resume(drm);
 617
 618 fail_display:
 619         if (dev->mode_config.num_crtc) {
 620                 NV_INFO(drm, "resuming display...\n");
 621                 nouveau_display_resume(dev, runtime);
 622         }
 623         return ret;
 624 }
 625
 626 static int
 627 nouveau_do_resume(struct drm_device *dev, bool runtime)
 628 {
 629         struct nouveau_drm *drm = nouveau_drm(dev);
 630         struct nouveau_cli *cli;
 631
 632         NV_INFO(drm, "resuming kernel object tree...\n");
 633         nvif_client_resume(&drm->client.base);
 634
 635         NV_INFO(drm, "resuming client object trees...\n");
 636         if (drm->fence && nouveau_fence(drm)->resume)
 637                 nouveau_fence(drm)->resume(drm);
 638
 639         list_for_each_entry(cli, &drm->clients, head) {
 640                 nvif_client_resume(&cli->base);
 641         }
 642
 643         nouveau_run_vbios_init(dev);
 644
 645         if (dev->mode_config.num_crtc) {
 646                 NV_INFO(drm, "resuming display...\n");
 647                 nouveau_display_resume(dev, runtime);
 648                 NV_INFO(drm, "resuming console...\n");
 649                 nouveau_fbcon_set_suspend(dev, 0);
 650         }
 651
 652         return 0;
 653 }
 654
 655 int
 656 nouveau_pmops_suspend(struct device *dev)
 657 {
 658         struct pci_dev *pdev = to_pci_dev(dev);
 659         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 660         int ret;
 661
 662         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 663             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 664                 return 0;
 665
 666         ret = nouveau_do_suspend(drm_dev, false);
 667         if (ret)
 668                 return ret;
 669
 670         pci_save_state(pdev);
 671         pci_disable_device(pdev);
 672         pci_set_power_state(pdev, PCI_D3hot);
 673         udelay(200);
 674         return 0;
 675 }
 676
 677 int
 678 nouveau_pmops_resume(struct device *dev)
 679 {
 680         struct pci_dev *pdev = to_pci_dev(dev);
 681         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 682         int ret;
 683
 684         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 685             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 686                 return 0;
 687
 688         pci_set_power_state(pdev, PCI_D0);
 689         pci_restore_state(pdev);
 690         ret = pci_enable_device(pdev);
 691         if (ret)
 692                 return ret;
 693         pci_set_master(pdev);
 694
 695         return nouveau_do_resume(drm_dev, false);
 696 }
 697
 698 static int
 699 nouveau_pmops_freeze(struct device *dev)
 700 {
 701         struct pci_dev *pdev = to_pci_dev(dev);
 702         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 703         return nouveau_do_suspend(drm_dev, false);
 704 }
 705
 706 static int
 707 nouveau_pmops_thaw(struct device *dev)
 708 {
 709         struct pci_dev *pdev = to_pci_dev(dev);
 710         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 711         return nouveau_do_resume(drm_dev, false);
 712 }
 713
 714 static int
 715 nouveau_pmops_runtime_suspend(struct device *dev)
 716 {
 717         struct pci_dev *pdev = to_pci_dev(dev);
 718         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 719         int ret;
 720
 721         if (nouveau_runtime_pm == 0) {
 722                 pm_runtime_forbid(dev);
 723                 return -EBUSY;
 724         }
 725
 726         /* are we optimus enabled? */
 727         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 728                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 729                 pm_runtime_forbid(dev);
 730                 return -EBUSY;
 731         }
 732
 733         drm_kms_helper_poll_disable(drm_dev);
 734         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 735         nouveau_switcheroo_optimus_dsm();
 736         ret = nouveau_do_suspend(drm_dev, true);
 737         pci_save_state(pdev);
 738         pci_disable_device(pdev);
 739         pci_ignore_hotplug(pdev);
 740         pci_set_power_state(pdev, PCI_D3cold);
 741         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 742         return ret;
 743 }
 744
 745 static int
 746 nouveau_pmops_runtime_resume(struct device *dev)
 747 {
 748         struct pci_dev *pdev = to_pci_dev(dev);
 749         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 750         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 751         int ret;
 752
 753         if (nouveau_runtime_pm == 0)
 754                 return -EINVAL;
 755
 756         pci_set_power_state(pdev, PCI_D0);
 757         pci_restore_state(pdev);
 758         ret = pci_enable_device(pdev);
 759         if (ret)
 760                 return ret;
 761         pci_set_master(pdev);
 762
 763         ret = nouveau_do_resume(drm_dev, true);
 764         drm_kms_helper_poll_enable(drm_dev);
 765         /* do magic */
 766         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 767         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 768         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 769         return ret;
 770 }
 771
 772 static int
 773 nouveau_pmops_runtime_idle(struct device *dev)
 774 {
 775         struct pci_dev *pdev = to_pci_dev(dev);
 776         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 777         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 778         struct drm_crtc *crtc;
 779
 780         if (nouveau_runtime_pm == 0) {
 781                 pm_runtime_forbid(dev);
 782                 return -EBUSY;
 783         }
 784
 785         /* are we optimus enabled? */
 786         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 787                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 788                 pm_runtime_forbid(dev);
 789                 return -EBUSY;
 790         }
 791
 792         /* if we have a hdmi audio device - make sure it has a driver loaded */
 793         if (drm->hdmi_device) {
 794                 if (!drm->hdmi_device->driver) {
 795                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 796                         pm_runtime_mark_last_busy(dev);
 797                         return -EBUSY;
 798                 }
 799         }
 800
 801         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 802                 if (crtc->enabled) {
 803                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 804                         return -EBUSY;
 805                 }
 806         }
 807         pm_runtime_mark_last_busy(dev);
 808         pm_runtime_autosuspend(dev);
 809         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 810         return 1;
 811 }
 812
 813 static int
 814 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 815 {
 816         struct nouveau_drm *drm = nouveau_drm(dev);
 817         struct nouveau_cli *cli;
 818         char name[32], tmpname[TASK_COMM_LEN];
 819         int ret;
 820
 821         /* need to bring up power immediately if opening device */
 822         ret = pm_runtime_get_sync(dev->dev);
 823         if (ret < 0 && ret != -EACCES)
 824                 return ret;
 825
 826         get_task_comm(tmpname, current);
 827         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 828
 829         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 830
 831         if (ret)
 832                 goto out_suspend;
 833
 834         cli->base.super = false;
 835
 836         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 837                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 838                                   0x1000, NULL, &cli->vm);
 839                 if (ret) {
 840                         nouveau_cli_destroy(cli);
 841                         goto out_suspend;
 842                 }
 843
 844                 nvxx_client(&cli->base)->vm = cli->vm;
 845         }
 846
 847         fpriv->driver_priv = cli;
 848
 849         mutex_lock(&drm->client.mutex);
 850         list_add(&cli->head, &drm->clients);
 851         mutex_unlock(&drm->client.mutex);
 852
 853 out_suspend:
 854         pm_runtime_mark_last_busy(dev->dev);
 855         pm_runtime_put_autosuspend(dev->dev);
 856
 857         return ret;
 858 }
 859
 860 static void
 861 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 862 {
 863         struct nouveau_cli *cli = nouveau_cli(fpriv);
 864         struct nouveau_drm *drm = nouveau_drm(dev);
 865
 866         pm_runtime_get_sync(dev->dev);
 867
 868         mutex_lock(&cli->mutex);
 869         if (cli->abi16)
 870                 nouveau_abi16_fini(cli->abi16);
 871         mutex_unlock(&cli->mutex);
 872
 873         mutex_lock(&drm->client.mutex);
 874         list_del(&cli->head);
 875         mutex_unlock(&drm->client.mutex);
 876
 877 }
 878
 879 static void
 880 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 881 {
 882         struct nouveau_cli *cli = nouveau_cli(fpriv);
 883         nouveau_cli_destroy(cli);
 884         pm_runtime_mark_last_busy(dev->dev);
 885         pm_runtime_put_autosuspend(dev->dev);
 886 }
 887
 888 static const struct drm_ioctl_desc
 889 nouveau_ioctls[] = {
 890         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 891         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 892         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 893         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 894         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 895         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 896         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 897         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 898         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 899         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 900         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 901         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 902 };
 903
 904 long
 905 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 906 {
 907         struct drm_file *filp = file->private_data;
 908         struct drm_device *dev = filp->minor->dev;
 909         long ret;
 910
 911         ret = pm_runtime_get_sync(dev->dev);
 912         if (ret < 0 && ret != -EACCES)
 913                 return ret;
 914
 915         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 916         case DRM_NOUVEAU_NVIF:
 917                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 918                 break;
 919         default:
 920                 ret = drm_ioctl(file, cmd, arg);
 921                 break;
 922         }
 923
 924         pm_runtime_mark_last_busy(dev->dev);
 925         pm_runtime_put_autosuspend(dev->dev);
 926         return ret;
 927 }
 928
 929 static const struct file_operations
 930 nouveau_driver_fops = {
 931         .owner = THIS_MODULE,
 932         .open = drm_open,
 933         .release = drm_release,
 934         .unlocked_ioctl = nouveau_drm_ioctl,
 935         .mmap = nouveau_ttm_mmap,
 936         .poll = drm_poll,
 937         .read = drm_read,
 938 #if defined(CONFIG_COMPAT)
 939         .compat_ioctl = nouveau_compat_ioctl,
 940 #endif
 941         .llseek = noop_llseek,
 942 };
 943
 944 static struct drm_driver
 945 driver_stub = {
 946         .driver_features =
 947                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 948                 DRIVER_KMS_LEGACY_CONTEXT,
 949
 950         .load = nouveau_drm_load,
 951         .unload = nouveau_drm_unload,
 952         .open = nouveau_drm_open,
 953         .preclose = nouveau_drm_preclose,
 954         .postclose = nouveau_drm_postclose,
 955         .lastclose = nouveau_vga_lastclose,
 956
 957 #if defined(CONFIG_DEBUG_FS)
 958         .debugfs_init = nouveau_drm_debugfs_init,
 959         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 960 #endif
 961
 962         .get_vblank_counter = drm_vblank_no_hw_counter,
 963         .enable_vblank = nouveau_display_vblank_enable,
 964         .disable_vblank = nouveau_display_vblank_disable,
 965         .get_scanout_position = nouveau_display_scanoutpos,
 966         .get_vblank_timestamp = nouveau_display_vblstamp,
 967
 968         .ioctls = nouveau_ioctls,
 969         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 970         .fops = &nouveau_driver_fops,
 971
 972         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 973         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 974         .gem_prime_export = drm_gem_prime_export,
 975         .gem_prime_import = drm_gem_prime_import,
 976         .gem_prime_pin = nouveau_gem_prime_pin,
 977         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 978         .gem_prime_unpin = nouveau_gem_prime_unpin,
 979         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 980         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 981         .gem_prime_vmap = nouveau_gem_prime_vmap,
 982         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 983
 984         .gem_free_object_unlocked = nouveau_gem_object_del,
 985         .gem_open_object = nouveau_gem_object_open,
 986         .gem_close_object = nouveau_gem_object_close,
 987
 988         .dumb_create = nouveau_display_dumb_create,
 989         .dumb_map_offset = nouveau_display_dumb_map_offset,
 990         .dumb_destroy = drm_gem_dumb_destroy,
 991
 992         .name = DRIVER_NAME,
 993         .desc = DRIVER_DESC,
 994 #ifdef GIT_REVISION
 995         .date = GIT_REVISION,
 996 #else
 997         .date = DRIVER_DATE,
 998 #endif
 999         .major = DRIVER_MAJOR,
1000         .minor = DRIVER_MINOR,
1001         .patchlevel = DRIVER_PATCHLEVEL,
1002 };
1003
1004 static struct pci_device_id
1005 nouveau_drm_pci_table[] = {
1006         {
1007                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1008                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1009                 .class_mask  = 0xff << 16,
1010         },
1011         {
1012                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1013                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1014                 .class_mask  = 0xff << 16,
1015         },
1016         {}
1017 };
1018
1019 static void nouveau_display_options(void)
1020 {
1021         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1022
1023         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1024         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1025         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1026         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1027         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1028         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1029         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1030         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1031         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1032         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1033 }
1034
1035 static const struct dev_pm_ops nouveau_pm_ops = {
1036         .suspend = nouveau_pmops_suspend,
1037         .resume = nouveau_pmops_resume,
1038         .freeze = nouveau_pmops_freeze,
1039         .thaw = nouveau_pmops_thaw,
1040         .poweroff = nouveau_pmops_freeze,
1041         .restore = nouveau_pmops_resume,
1042         .runtime_suspend = nouveau_pmops_runtime_suspend,
1043         .runtime_resume = nouveau_pmops_runtime_resume,
1044         .runtime_idle = nouveau_pmops_runtime_idle,
1045 };
1046
1047 static struct pci_driver
1048 nouveau_drm_pci_driver = {
1049         .name = "nouveau",
1050         .id_table = nouveau_drm_pci_table,
1051         .probe = nouveau_drm_probe,
1052         .remove = nouveau_drm_remove,
1053         .driver.pm = &nouveau_pm_ops,
1054 };
1055
1056 struct drm_device *
1057 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1058                                struct platform_device *pdev,
1059                                struct nvkm_device **pdevice)
1060 {
1061         struct drm_device *drm;
1062         int err;
1063
1064         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1065                                     true, true, ~0ULL, pdevice);
1066         if (err)
1067                 goto err_free;
1068
1069         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1070         if (!drm) {
1071                 err = -ENOMEM;
1072                 goto err_free;
1073         }
1074
1075         drm->platformdev = pdev;
1076         platform_set_drvdata(pdev, drm);
1077
1078         return drm;
1079
1080 err_free:
1081         nvkm_device_del(pdevice);
1082
1083         return ERR_PTR(err);
1084 }
1085
1086 static int __init
1087 nouveau_drm_init(void)
1088 {
1089         driver_pci = driver_stub;
1090         driver_pci.set_busid = drm_pci_set_busid;
1091         driver_platform = driver_stub;
1092
1093         nouveau_display_options();
1094
1095         if (nouveau_modeset == -1) {
1096                 if (vgacon_text_force())
1097                         nouveau_modeset = 0;
1098         }
1099
1100         if (!nouveau_modeset)
1101                 return 0;
1102
1103 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1104         platform_driver_register(&nouveau_platform_driver);
1105 #endif
1106
1107         nouveau_register_dsm_handler();
1108         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1109 }
1110
1111 static void __exit
1112 nouveau_drm_exit(void)
1113 {
1114         if (!nouveau_modeset)
1115                 return;
1116
1117         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1118         nouveau_unregister_dsm_handler();
1119
1120 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1121         platform_driver_unregister(&nouveau_platform_driver);
1122 #endif
1123 }
1124
1125 module_init(nouveau_drm_init);
1126 module_exit(nouveau_drm_exit);
1127
1128 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1129 MODULE_AUTHOR(DRIVER_AUTHOR);
1130 MODULE_DESCRIPTION(DRIVER_DESC);
1131 MODULE_LICENSE("GPL and additional rights");