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                 drm_fb_helper_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         } else {
 487                 /* enable polling for external displays */
 488                 drm_kms_helper_poll_enable(dev);
 489         }
 490         return 0;
 491
 492 fail_dispinit:
 493         nouveau_display_destroy(dev);
 494 fail_dispctor:
 495         nouveau_bios_takedown(dev);
 496 fail_bios:
 497         nouveau_ttm_fini(drm);
 498 fail_ttm:
 499         nouveau_vga_fini(drm);
 500 fail_device:
 501         nvif_device_fini(&drm->device);
 502         nouveau_cli_destroy(&drm->client);
 503         return ret;
 504 }
 505
 506 static int
 507 nouveau_drm_unload(struct drm_device *dev)
 508 {
 509         struct nouveau_drm *drm = nouveau_drm(dev);
 510
 511         if (nouveau_runtime_pm != 0) {
 512                 pm_runtime_get_sync(dev->dev);
 513                 pm_runtime_forbid(dev->dev);
 514         }
 515
 516         nouveau_fbcon_fini(dev);
 517         nouveau_accel_fini(drm);
 518         nouveau_hwmon_fini(dev);
 519         nouveau_debugfs_fini(drm);
 520
 521         if (dev->mode_config.num_crtc)
 522                 nouveau_display_fini(dev);
 523         nouveau_display_destroy(dev);
 524
 525         nouveau_bios_takedown(dev);
 526
 527         nouveau_ttm_fini(drm);
 528         nouveau_vga_fini(drm);
 529
 530         nvif_device_fini(&drm->device);
 531         if (drm->hdmi_device)
 532                 pci_dev_put(drm->hdmi_device);
 533         nouveau_cli_destroy(&drm->client);
 534         return 0;
 535 }
 536
 537 void
 538 nouveau_drm_device_remove(struct drm_device *dev)
 539 {
 540         struct nouveau_drm *drm = nouveau_drm(dev);
 541         struct nvkm_client *client;
 542         struct nvkm_device *device;
 543
 544         dev->irq_enabled = false;
 545         client = nvxx_client(&drm->client.base);
 546         device = nvkm_device_find(client->device);
 547         drm_put_dev(dev);
 548
 549         nvkm_device_del(&device);
 550 }
 551
 552 static void
 553 nouveau_drm_remove(struct pci_dev *pdev)
 554 {
 555         struct drm_device *dev = pci_get_drvdata(pdev);
 556
 557         nouveau_drm_device_remove(dev);
 558 }
 559
 560 static int
 561 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 562 {
 563         struct nouveau_drm *drm = nouveau_drm(dev);
 564         struct nouveau_cli *cli;
 565         int ret;
 566
 567         if (dev->mode_config.num_crtc) {
 568                 NV_INFO(drm, "suspending console...\n");
 569                 nouveau_fbcon_set_suspend(dev, 1);
 570                 NV_INFO(drm, "suspending display...\n");
 571                 ret = nouveau_display_suspend(dev, runtime);
 572                 if (ret)
 573                         return ret;
 574         }
 575
 576         NV_INFO(drm, "evicting buffers...\n");
 577         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 578
 579         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 580         if (drm->cechan) {
 581                 ret = nouveau_channel_idle(drm->cechan);
 582                 if (ret)
 583                         goto fail_display;
 584         }
 585
 586         if (drm->channel) {
 587                 ret = nouveau_channel_idle(drm->channel);
 588                 if (ret)
 589                         goto fail_display;
 590         }
 591
 592         NV_INFO(drm, "suspending client object trees...\n");
 593         if (drm->fence && nouveau_fence(drm)->suspend) {
 594                 if (!nouveau_fence(drm)->suspend(drm)) {
 595                         ret = -ENOMEM;
 596                         goto fail_display;
 597                 }
 598         }
 599
 600         list_for_each_entry(cli, &drm->clients, head) {
 601                 ret = nvif_client_suspend(&cli->base);
 602                 if (ret)
 603                         goto fail_client;
 604         }
 605
 606         NV_INFO(drm, "suspending kernel object tree...\n");
 607         ret = nvif_client_suspend(&drm->client.base);
 608         if (ret)
 609                 goto fail_client;
 610
 611         return 0;
 612
 613 fail_client:
 614         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 615                 nvif_client_resume(&cli->base);
 616         }
 617
 618         if (drm->fence && nouveau_fence(drm)->resume)
 619                 nouveau_fence(drm)->resume(drm);
 620
 621 fail_display:
 622         if (dev->mode_config.num_crtc) {
 623                 NV_INFO(drm, "resuming display...\n");
 624                 nouveau_display_resume(dev, runtime);
 625         }
 626         return ret;
 627 }
 628
 629 static int
 630 nouveau_do_resume(struct drm_device *dev, bool runtime)
 631 {
 632         struct nouveau_drm *drm = nouveau_drm(dev);
 633         struct nouveau_cli *cli;
 634
 635         NV_INFO(drm, "resuming kernel object tree...\n");
 636         nvif_client_resume(&drm->client.base);
 637
 638         NV_INFO(drm, "resuming client object trees...\n");
 639         if (drm->fence && nouveau_fence(drm)->resume)
 640                 nouveau_fence(drm)->resume(drm);
 641
 642         list_for_each_entry(cli, &drm->clients, head) {
 643                 nvif_client_resume(&cli->base);
 644         }
 645
 646         nouveau_run_vbios_init(dev);
 647
 648         if (dev->mode_config.num_crtc) {
 649                 NV_INFO(drm, "resuming display...\n");
 650                 nouveau_display_resume(dev, runtime);
 651                 NV_INFO(drm, "resuming console...\n");
 652                 nouveau_fbcon_set_suspend(dev, 0);
 653         }
 654
 655         return 0;
 656 }
 657
 658 int
 659 nouveau_pmops_suspend(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         ret = nouveau_do_suspend(drm_dev, false);
 670         if (ret)
 671                 return ret;
 672
 673         pci_save_state(pdev);
 674         pci_disable_device(pdev);
 675         pci_set_power_state(pdev, PCI_D3hot);
 676         udelay(200);
 677         return 0;
 678 }
 679
 680 int
 681 nouveau_pmops_resume(struct device *dev)
 682 {
 683         struct pci_dev *pdev = to_pci_dev(dev);
 684         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 685         int ret;
 686
 687         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 688             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 689                 return 0;
 690
 691         pci_set_power_state(pdev, PCI_D0);
 692         pci_restore_state(pdev);
 693         ret = pci_enable_device(pdev);
 694         if (ret)
 695                 return ret;
 696         pci_set_master(pdev);
 697
 698         return nouveau_do_resume(drm_dev, false);
 699 }
 700
 701 static int
 702 nouveau_pmops_freeze(struct device *dev)
 703 {
 704         struct pci_dev *pdev = to_pci_dev(dev);
 705         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 706         return nouveau_do_suspend(drm_dev, false);
 707 }
 708
 709 static int
 710 nouveau_pmops_thaw(struct device *dev)
 711 {
 712         struct pci_dev *pdev = to_pci_dev(dev);
 713         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 714         return nouveau_do_resume(drm_dev, false);
 715 }
 716
 717 static int
 718 nouveau_pmops_runtime_suspend(struct device *dev)
 719 {
 720         struct pci_dev *pdev = to_pci_dev(dev);
 721         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 722         int ret;
 723
 724         if (nouveau_runtime_pm == 0) {
 725                 pm_runtime_forbid(dev);
 726                 return -EBUSY;
 727         }
 728
 729         /* are we optimus enabled? */
 730         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 731                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 732                 pm_runtime_forbid(dev);
 733                 return -EBUSY;
 734         }
 735
 736         drm_kms_helper_poll_disable(drm_dev);
 737         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 738         nouveau_switcheroo_optimus_dsm();
 739         ret = nouveau_do_suspend(drm_dev, true);
 740         pci_save_state(pdev);
 741         pci_disable_device(pdev);
 742         pci_ignore_hotplug(pdev);
 743         pci_set_power_state(pdev, PCI_D3cold);
 744         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 745         return ret;
 746 }
 747
 748 static int
 749 nouveau_pmops_runtime_resume(struct device *dev)
 750 {
 751         struct pci_dev *pdev = to_pci_dev(dev);
 752         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 753         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 754         int ret;
 755
 756         if (nouveau_runtime_pm == 0)
 757                 return -EINVAL;
 758
 759         pci_set_power_state(pdev, PCI_D0);
 760         pci_restore_state(pdev);
 761         ret = pci_enable_device(pdev);
 762         if (ret)
 763                 return ret;
 764         pci_set_master(pdev);
 765
 766         ret = nouveau_do_resume(drm_dev, true);
 767
 768         /* do magic */
 769         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 770         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 771         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 772         return ret;
 773 }
 774
 775 static int
 776 nouveau_pmops_runtime_idle(struct device *dev)
 777 {
 778         struct pci_dev *pdev = to_pci_dev(dev);
 779         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 780         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 781         struct drm_crtc *crtc;
 782
 783         if (nouveau_runtime_pm == 0) {
 784                 pm_runtime_forbid(dev);
 785                 return -EBUSY;
 786         }
 787
 788         /* are we optimus enabled? */
 789         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 790                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 791                 pm_runtime_forbid(dev);
 792                 return -EBUSY;
 793         }
 794
 795         /* if we have a hdmi audio device - make sure it has a driver loaded */
 796         if (drm->hdmi_device) {
 797                 if (!drm->hdmi_device->driver) {
 798                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 799                         pm_runtime_mark_last_busy(dev);
 800                         return -EBUSY;
 801                 }
 802         }
 803
 804         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 805                 if (crtc->enabled) {
 806                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 807                         return -EBUSY;
 808                 }
 809         }
 810         pm_runtime_mark_last_busy(dev);
 811         pm_runtime_autosuspend(dev);
 812         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 813         return 1;
 814 }
 815
 816 static int
 817 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 818 {
 819         struct nouveau_drm *drm = nouveau_drm(dev);
 820         struct nouveau_cli *cli;
 821         char name[32], tmpname[TASK_COMM_LEN];
 822         int ret;
 823
 824         /* need to bring up power immediately if opening device */
 825         ret = pm_runtime_get_sync(dev->dev);
 826         if (ret < 0 && ret != -EACCES) {
 827                 pm_runtime_put_autosuspend(dev->dev);
 828                 return ret;
 829         }
 830
 831         get_task_comm(tmpname, current);
 832         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 833
 834         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 835
 836         if (ret)
 837                 goto out_suspend;
 838
 839         cli->base.super = false;
 840
 841         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 842                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 843                                   0x1000, NULL, &cli->vm);
 844                 if (ret) {
 845                         nouveau_cli_destroy(cli);
 846                         goto out_suspend;
 847                 }
 848
 849                 nvxx_client(&cli->base)->vm = cli->vm;
 850         }
 851
 852         fpriv->driver_priv = cli;
 853
 854         mutex_lock(&drm->client.mutex);
 855         list_add(&cli->head, &drm->clients);
 856         mutex_unlock(&drm->client.mutex);
 857
 858 out_suspend:
 859         pm_runtime_mark_last_busy(dev->dev);
 860         pm_runtime_put_autosuspend(dev->dev);
 861
 862         return ret;
 863 }
 864
 865 static void
 866 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 867 {
 868         struct nouveau_cli *cli = nouveau_cli(fpriv);
 869         struct nouveau_drm *drm = nouveau_drm(dev);
 870
 871         pm_runtime_get_sync(dev->dev);
 872
 873         mutex_lock(&cli->mutex);
 874         if (cli->abi16)
 875                 nouveau_abi16_fini(cli->abi16);
 876         mutex_unlock(&cli->mutex);
 877
 878         mutex_lock(&drm->client.mutex);
 879         list_del(&cli->head);
 880         mutex_unlock(&drm->client.mutex);
 881
 882 }
 883
 884 static void
 885 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 886 {
 887         struct nouveau_cli *cli = nouveau_cli(fpriv);
 888         nouveau_cli_destroy(cli);
 889         pm_runtime_mark_last_busy(dev->dev);
 890         pm_runtime_put_autosuspend(dev->dev);
 891 }
 892
 893 static const struct drm_ioctl_desc
 894 nouveau_ioctls[] = {
 895         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 896         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 897         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 898         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 899         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 900         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 901         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 902         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 903         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 904         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 905         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 906         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 907 };
 908
 909 long
 910 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 911 {
 912         struct drm_file *filp = file->private_data;
 913         struct drm_device *dev = filp->minor->dev;
 914         long ret;
 915
 916         ret = pm_runtime_get_sync(dev->dev);
 917         if (ret < 0 && ret != -EACCES) {
 918                 pm_runtime_put_autosuspend(dev->dev);
 919                 return ret;
 920         }
 921
 922         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 923         case DRM_NOUVEAU_NVIF:
 924                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 925                 break;
 926         default:
 927                 ret = drm_ioctl(file, cmd, arg);
 928                 break;
 929         }
 930
 931         pm_runtime_mark_last_busy(dev->dev);
 932         pm_runtime_put_autosuspend(dev->dev);
 933         return ret;
 934 }
 935
 936 static const struct file_operations
 937 nouveau_driver_fops = {
 938         .owner = THIS_MODULE,
 939         .open = drm_open,
 940         .release = drm_release,
 941         .unlocked_ioctl = nouveau_drm_ioctl,
 942         .mmap = nouveau_ttm_mmap,
 943         .poll = drm_poll,
 944         .read = drm_read,
 945 #if defined(CONFIG_COMPAT)
 946         .compat_ioctl = nouveau_compat_ioctl,
 947 #endif
 948         .llseek = noop_llseek,
 949 };
 950
 951 static struct drm_driver
 952 driver_stub = {
 953         .driver_features =
 954                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 955                 DRIVER_KMS_LEGACY_CONTEXT,
 956
 957         .load = nouveau_drm_load,
 958         .unload = nouveau_drm_unload,
 959         .open = nouveau_drm_open,
 960         .preclose = nouveau_drm_preclose,
 961         .postclose = nouveau_drm_postclose,
 962         .lastclose = nouveau_vga_lastclose,
 963
 964 #if defined(CONFIG_DEBUG_FS)
 965         .debugfs_init = nouveau_drm_debugfs_init,
 966         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 967 #endif
 968
 969         .get_vblank_counter = drm_vblank_no_hw_counter,
 970         .enable_vblank = nouveau_display_vblank_enable,
 971         .disable_vblank = nouveau_display_vblank_disable,
 972         .get_scanout_position = nouveau_display_scanoutpos,
 973         .get_vblank_timestamp = nouveau_display_vblstamp,
 974
 975         .ioctls = nouveau_ioctls,
 976         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 977         .fops = &nouveau_driver_fops,
 978
 979         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 980         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 981         .gem_prime_export = drm_gem_prime_export,
 982         .gem_prime_import = drm_gem_prime_import,
 983         .gem_prime_pin = nouveau_gem_prime_pin,
 984         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 985         .gem_prime_unpin = nouveau_gem_prime_unpin,
 986         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 987         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 988         .gem_prime_vmap = nouveau_gem_prime_vmap,
 989         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 990
 991         .gem_free_object_unlocked = nouveau_gem_object_del,
 992         .gem_open_object = nouveau_gem_object_open,
 993         .gem_close_object = nouveau_gem_object_close,
 994
 995         .dumb_create = nouveau_display_dumb_create,
 996         .dumb_map_offset = nouveau_display_dumb_map_offset,
 997         .dumb_destroy = drm_gem_dumb_destroy,
 998
 999         .name = DRIVER_NAME,
1000         .desc = DRIVER_DESC,
1001 #ifdef GIT_REVISION
1002         .date = GIT_REVISION,
1003 #else
1004         .date = DRIVER_DATE,
1005 #endif
1006         .major = DRIVER_MAJOR,
1007         .minor = DRIVER_MINOR,
1008         .patchlevel = DRIVER_PATCHLEVEL,
1009 };
1010
1011 static struct pci_device_id
1012 nouveau_drm_pci_table[] = {
1013         {
1014                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1015                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1016                 .class_mask  = 0xff << 16,
1017         },
1018         {
1019                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1020                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1021                 .class_mask  = 0xff << 16,
1022         },
1023         {}
1024 };
1025
1026 static void nouveau_display_options(void)
1027 {
1028         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1029
1030         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1031         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1032         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1033         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1034         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1035         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1036         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1037         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1038         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1039         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1040 }
1041
1042 static const struct dev_pm_ops nouveau_pm_ops = {
1043         .suspend = nouveau_pmops_suspend,
1044         .resume = nouveau_pmops_resume,
1045         .freeze = nouveau_pmops_freeze,
1046         .thaw = nouveau_pmops_thaw,
1047         .poweroff = nouveau_pmops_freeze,
1048         .restore = nouveau_pmops_resume,
1049         .runtime_suspend = nouveau_pmops_runtime_suspend,
1050         .runtime_resume = nouveau_pmops_runtime_resume,
1051         .runtime_idle = nouveau_pmops_runtime_idle,
1052 };
1053
1054 static struct pci_driver
1055 nouveau_drm_pci_driver = {
1056         .name = "nouveau",
1057         .id_table = nouveau_drm_pci_table,
1058         .probe = nouveau_drm_probe,
1059         .remove = nouveau_drm_remove,
1060         .driver.pm = &nouveau_pm_ops,
1061 };
1062
1063 struct drm_device *
1064 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1065                                struct platform_device *pdev,
1066                                struct nvkm_device **pdevice)
1067 {
1068         struct drm_device *drm;
1069         int err;
1070
1071         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1072                                     true, true, ~0ULL, pdevice);
1073         if (err)
1074                 goto err_free;
1075
1076         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1077         if (IS_ERR(drm)) {
1078                 err = PTR_ERR(drm);
1079                 goto err_free;
1080         }
1081
1082         drm->platformdev = pdev;
1083         platform_set_drvdata(pdev, drm);
1084
1085         return drm;
1086
1087 err_free:
1088         nvkm_device_del(pdevice);
1089
1090         return ERR_PTR(err);
1091 }
1092
1093 static int __init
1094 nouveau_drm_init(void)
1095 {
1096         driver_pci = driver_stub;
1097         driver_pci.set_busid = drm_pci_set_busid;
1098         driver_platform = driver_stub;
1099
1100         nouveau_display_options();
1101
1102         if (nouveau_modeset == -1) {
1103                 if (vgacon_text_force())
1104                         nouveau_modeset = 0;
1105         }
1106
1107         if (!nouveau_modeset)
1108                 return 0;
1109
1110 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1111         platform_driver_register(&nouveau_platform_driver);
1112 #endif
1113
1114         nouveau_register_dsm_handler();
1115         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1116 }
1117
1118 static void __exit
1119 nouveau_drm_exit(void)
1120 {
1121         if (!nouveau_modeset)
1122                 return;
1123
1124         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1125         nouveau_unregister_dsm_handler();
1126
1127 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1128         platform_driver_unregister(&nouveau_platform_driver);
1129 #endif
1130 }
1131
1132 module_init(nouveau_drm_init);
1133 module_exit(nouveau_drm_exit);
1134
1135 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1136 MODULE_AUTHOR(DRIVER_AUTHOR);
1137 MODULE_DESCRIPTION(DRIVER_DESC);
1138 MODULE_LICENSE("GPL and additional rights");