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_drm.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 MAXWELL_CHANNEL_GPFIFO_A:
 200                         ret = nvc0_fence_create(drm);
 201                         break;
 202                 default:
 203                         break;
 204                 }
 205         }
 206
 207         nvif_object_sclass_put(&sclass);
 208         if (ret) {
 209                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 210                 nouveau_accel_fini(drm);
 211                 return;
 212         }
 213
 214         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 215                 ret = nouveau_channel_new(drm, &drm->device,
 216                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 217                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 218                                           0, &drm->cechan);
 219                 if (ret)
 220                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 221
 222                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 223                 arg1 = 1;
 224         } else
 225         if (device->info.chipset >= 0xa3 &&
 226             device->info.chipset != 0xaa &&
 227             device->info.chipset != 0xac) {
 228                 ret = nouveau_channel_new(drm, &drm->device,
 229                                           NvDmaFB, NvDmaTT, &drm->cechan);
 230                 if (ret)
 231                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 232
 233                 arg0 = NvDmaFB;
 234                 arg1 = NvDmaTT;
 235         } else {
 236                 arg0 = NvDmaFB;
 237                 arg1 = NvDmaTT;
 238         }
 239
 240         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 241         if (ret) {
 242                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 243                 nouveau_accel_fini(drm);
 244                 return;
 245         }
 246
 247         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 248                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 249         if (ret == 0) {
 250                 ret = RING_SPACE(drm->channel, 2);
 251                 if (ret == 0) {
 252                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 253                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 254                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 255                         } else
 256                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 257                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 258                                 OUT_RING  (drm->channel, 0x001f0000);
 259                         }
 260                 }
 261
 262                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 263                                        false, NV04_NVSW_NTFY_UEVENT,
 264                                        NULL, 0, 0, &drm->flip);
 265                 if (ret == 0)
 266                         ret = nvif_notify_get(&drm->flip);
 267                 if (ret) {
 268                         nouveau_accel_fini(drm);
 269                         return;
 270                 }
 271         }
 272
 273         if (ret) {
 274                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 275                 nouveau_accel_fini(drm);
 276                 return;
 277         }
 278
 279         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 280                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 281                                       NULL, &drm->notify);
 282                 if (ret) {
 283                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 284                         nouveau_accel_fini(drm);
 285                         return;
 286                 }
 287
 288                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 289                                        NV_DMA_IN_MEMORY,
 290                                        &(struct nv_dma_v0) {
 291                                                 .target = NV_DMA_V0_TARGET_VRAM,
 292                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 293                                                 .start = drm->notify->addr,
 294                                                 .limit = drm->notify->addr + 31
 295                                        }, sizeof(struct nv_dma_v0),
 296                                        &drm->ntfy);
 297                 if (ret) {
 298                         nouveau_accel_fini(drm);
 299                         return;
 300                 }
 301         }
 302
 303
 304         nouveau_bo_move_init(drm);
 305 }
 306
 307 static int nouveau_drm_probe(struct pci_dev *pdev,
 308                              const struct pci_device_id *pent)
 309 {
 310         struct nvkm_device *device;
 311         struct apertures_struct *aper;
 312         bool boot = false;
 313         int ret;
 314
 315         /* remove conflicting drivers (vesafb, efifb etc) */
 316         aper = alloc_apertures(3);
 317         if (!aper)
 318                 return -ENOMEM;
 319
 320         aper->ranges[0].base = pci_resource_start(pdev, 1);
 321         aper->ranges[0].size = pci_resource_len(pdev, 1);
 322         aper->count = 1;
 323
 324         if (pci_resource_len(pdev, 2)) {
 325                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 326                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 327                 aper->count++;
 328         }
 329
 330         if (pci_resource_len(pdev, 3)) {
 331                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 332                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 333                 aper->count++;
 334         }
 335
 336 #ifdef CONFIG_X86
 337         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 338 #endif
 339         if (nouveau_modeset != 2)
 340                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 341         kfree(aper);
 342
 343         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 344                                   true, true, ~0ULL, &device);
 345         if (ret)
 346                 return ret;
 347
 348         pci_set_master(pdev);
 349
 350         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 351         if (ret) {
 352                 nvkm_device_del(&device);
 353                 return ret;
 354         }
 355
 356         return 0;
 357 }
 358
 359 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 360
 361 static void
 362 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 363 {
 364         struct pci_dev *pdev = drm->dev->pdev;
 365
 366         if (!pdev) {
 367                 DRM_INFO("not a PCI device; no HDMI\n");
 368                 drm->hdmi_device = NULL;
 369                 return;
 370         }
 371
 372         /* subfunction one is a hdmi audio device? */
 373         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 374                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 375
 376         if (!drm->hdmi_device) {
 377                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 378                 return;
 379         }
 380
 381         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 382                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 383                 pci_dev_put(drm->hdmi_device);
 384                 drm->hdmi_device = NULL;
 385                 return;
 386         }
 387 }
 388
 389 static int
 390 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 391 {
 392         struct nouveau_drm *drm;
 393         int ret;
 394
 395         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 396         if (ret)
 397                 return ret;
 398
 399         dev->dev_private = drm;
 400         drm->dev = dev;
 401         nvxx_client(&drm->client.base)->debug =
 402                 nvkm_dbgopt(nouveau_debug, "DRM");
 403
 404         INIT_LIST_HEAD(&drm->clients);
 405         spin_lock_init(&drm->tile.lock);
 406
 407         nouveau_get_hdmi_dev(drm);
 408
 409         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 410                                &(struct nv_device_v0) {
 411                                         .device = ~0,
 412                                }, sizeof(struct nv_device_v0),
 413                                &drm->device);
 414         if (ret)
 415                 goto fail_device;
 416
 417         dev->irq_enabled = true;
 418
 419         /* workaround an odd issue on nvc1 by disabling the device's
 420          * nosnoop capability.  hopefully won't cause issues until a
 421          * better fix is found - assuming there is one...
 422          */
 423         if (drm->device.info.chipset == 0xc1)
 424                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 425
 426         nouveau_vga_init(drm);
 427
 428         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 429                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 430                                   0x1000, NULL, &drm->client.vm);
 431                 if (ret)
 432                         goto fail_device;
 433
 434                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 435         }
 436
 437         ret = nouveau_ttm_init(drm);
 438         if (ret)
 439                 goto fail_ttm;
 440
 441         ret = nouveau_bios_init(dev);
 442         if (ret)
 443                 goto fail_bios;
 444
 445         ret = nouveau_display_create(dev);
 446         if (ret)
 447                 goto fail_dispctor;
 448
 449         if (dev->mode_config.num_crtc) {
 450                 ret = nouveau_display_init(dev);
 451                 if (ret)
 452                         goto fail_dispinit;
 453         }
 454
 455         nouveau_debugfs_init(drm);
 456         nouveau_hwmon_init(dev);
 457         nouveau_accel_init(drm);
 458         nouveau_fbcon_init(dev);
 459
 460         if (nouveau_runtime_pm != 0) {
 461                 pm_runtime_use_autosuspend(dev->dev);
 462                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 463                 pm_runtime_set_active(dev->dev);
 464                 pm_runtime_allow(dev->dev);
 465                 pm_runtime_mark_last_busy(dev->dev);
 466                 pm_runtime_put(dev->dev);
 467         }
 468         return 0;
 469
 470 fail_dispinit:
 471         nouveau_display_destroy(dev);
 472 fail_dispctor:
 473         nouveau_bios_takedown(dev);
 474 fail_bios:
 475         nouveau_ttm_fini(drm);
 476 fail_ttm:
 477         nouveau_vga_fini(drm);
 478 fail_device:
 479         nvif_device_fini(&drm->device);
 480         nouveau_cli_destroy(&drm->client);
 481         return ret;
 482 }
 483
 484 static int
 485 nouveau_drm_unload(struct drm_device *dev)
 486 {
 487         struct nouveau_drm *drm = nouveau_drm(dev);
 488
 489         pm_runtime_get_sync(dev->dev);
 490         nouveau_fbcon_fini(dev);
 491         nouveau_accel_fini(drm);
 492         nouveau_hwmon_fini(dev);
 493         nouveau_debugfs_fini(drm);
 494
 495         if (dev->mode_config.num_crtc)
 496                 nouveau_display_fini(dev);
 497         nouveau_display_destroy(dev);
 498
 499         nouveau_bios_takedown(dev);
 500
 501         nouveau_ttm_fini(drm);
 502         nouveau_vga_fini(drm);
 503
 504         nvif_device_fini(&drm->device);
 505         if (drm->hdmi_device)
 506                 pci_dev_put(drm->hdmi_device);
 507         nouveau_cli_destroy(&drm->client);
 508         return 0;
 509 }
 510
 511 void
 512 nouveau_drm_device_remove(struct drm_device *dev)
 513 {
 514         struct nouveau_drm *drm = nouveau_drm(dev);
 515         struct nvkm_client *client;
 516         struct nvkm_device *device;
 517
 518         dev->irq_enabled = false;
 519         client = nvxx_client(&drm->client.base);
 520         device = nvkm_device_find(client->device);
 521         drm_put_dev(dev);
 522
 523         nvkm_device_del(&device);
 524 }
 525
 526 static void
 527 nouveau_drm_remove(struct pci_dev *pdev)
 528 {
 529         struct drm_device *dev = pci_get_drvdata(pdev);
 530
 531         nouveau_drm_device_remove(dev);
 532 }
 533
 534 static int
 535 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 536 {
 537         struct nouveau_drm *drm = nouveau_drm(dev);
 538         struct nouveau_cli *cli;
 539         int ret;
 540
 541         if (dev->mode_config.num_crtc) {
 542                 NV_INFO(drm, "suspending console...\n");
 543                 nouveau_fbcon_set_suspend(dev, 1);
 544                 NV_INFO(drm, "suspending display...\n");
 545                 ret = nouveau_display_suspend(dev, runtime);
 546                 if (ret)
 547                         return ret;
 548         }
 549
 550         NV_INFO(drm, "evicting buffers...\n");
 551         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 552
 553         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 554         if (drm->cechan) {
 555                 ret = nouveau_channel_idle(drm->cechan);
 556                 if (ret)
 557                         goto fail_display;
 558         }
 559
 560         if (drm->channel) {
 561                 ret = nouveau_channel_idle(drm->channel);
 562                 if (ret)
 563                         goto fail_display;
 564         }
 565
 566         NV_INFO(drm, "suspending client object trees...\n");
 567         if (drm->fence && nouveau_fence(drm)->suspend) {
 568                 if (!nouveau_fence(drm)->suspend(drm)) {
 569                         ret = -ENOMEM;
 570                         goto fail_display;
 571                 }
 572         }
 573
 574         list_for_each_entry(cli, &drm->clients, head) {
 575                 ret = nvif_client_suspend(&cli->base);
 576                 if (ret)
 577                         goto fail_client;
 578         }
 579
 580         NV_INFO(drm, "suspending kernel object tree...\n");
 581         ret = nvif_client_suspend(&drm->client.base);
 582         if (ret)
 583                 goto fail_client;
 584
 585         return 0;
 586
 587 fail_client:
 588         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 589                 nvif_client_resume(&cli->base);
 590         }
 591
 592         if (drm->fence && nouveau_fence(drm)->resume)
 593                 nouveau_fence(drm)->resume(drm);
 594
 595 fail_display:
 596         if (dev->mode_config.num_crtc) {
 597                 NV_INFO(drm, "resuming display...\n");
 598                 nouveau_display_resume(dev, runtime);
 599         }
 600         return ret;
 601 }
 602
 603 static int
 604 nouveau_do_resume(struct drm_device *dev, bool runtime)
 605 {
 606         struct nouveau_drm *drm = nouveau_drm(dev);
 607         struct nouveau_cli *cli;
 608
 609         NV_INFO(drm, "resuming kernel object tree...\n");
 610         nvif_client_resume(&drm->client.base);
 611
 612         NV_INFO(drm, "resuming client object trees...\n");
 613         if (drm->fence && nouveau_fence(drm)->resume)
 614                 nouveau_fence(drm)->resume(drm);
 615
 616         list_for_each_entry(cli, &drm->clients, head) {
 617                 nvif_client_resume(&cli->base);
 618         }
 619
 620         nouveau_run_vbios_init(dev);
 621
 622         if (dev->mode_config.num_crtc) {
 623                 NV_INFO(drm, "resuming display...\n");
 624                 nouveau_display_resume(dev, runtime);
 625                 NV_INFO(drm, "resuming console...\n");
 626                 nouveau_fbcon_set_suspend(dev, 0);
 627         }
 628
 629         return 0;
 630 }
 631
 632 int
 633 nouveau_pmops_suspend(struct device *dev)
 634 {
 635         struct pci_dev *pdev = to_pci_dev(dev);
 636         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 637         int ret;
 638
 639         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 640             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 641                 return 0;
 642
 643         ret = nouveau_do_suspend(drm_dev, false);
 644         if (ret)
 645                 return ret;
 646
 647         pci_save_state(pdev);
 648         pci_disable_device(pdev);
 649         pci_set_power_state(pdev, PCI_D3hot);
 650         udelay(200);
 651         return 0;
 652 }
 653
 654 int
 655 nouveau_pmops_resume(struct device *dev)
 656 {
 657         struct pci_dev *pdev = to_pci_dev(dev);
 658         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 659         int ret;
 660
 661         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 662             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 663                 return 0;
 664
 665         pci_set_power_state(pdev, PCI_D0);
 666         pci_restore_state(pdev);
 667         ret = pci_enable_device(pdev);
 668         if (ret)
 669                 return ret;
 670         pci_set_master(pdev);
 671
 672         return nouveau_do_resume(drm_dev, false);
 673 }
 674
 675 static int
 676 nouveau_pmops_freeze(struct device *dev)
 677 {
 678         struct pci_dev *pdev = to_pci_dev(dev);
 679         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 680         return nouveau_do_suspend(drm_dev, false);
 681 }
 682
 683 static int
 684 nouveau_pmops_thaw(struct device *dev)
 685 {
 686         struct pci_dev *pdev = to_pci_dev(dev);
 687         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 688         return nouveau_do_resume(drm_dev, false);
 689 }
 690
 691 static int
 692 nouveau_pmops_runtime_suspend(struct device *dev)
 693 {
 694         struct pci_dev *pdev = to_pci_dev(dev);
 695         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 696         int ret;
 697
 698         if (nouveau_runtime_pm == 0) {
 699                 pm_runtime_forbid(dev);
 700                 return -EBUSY;
 701         }
 702
 703         /* are we optimus enabled? */
 704         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 705                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 706                 pm_runtime_forbid(dev);
 707                 return -EBUSY;
 708         }
 709
 710         drm_kms_helper_poll_disable(drm_dev);
 711         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 712         nouveau_switcheroo_optimus_dsm();
 713         ret = nouveau_do_suspend(drm_dev, true);
 714         pci_save_state(pdev);
 715         pci_disable_device(pdev);
 716         pci_ignore_hotplug(pdev);
 717         pci_set_power_state(pdev, PCI_D3cold);
 718         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 719         return ret;
 720 }
 721
 722 static int
 723 nouveau_pmops_runtime_resume(struct device *dev)
 724 {
 725         struct pci_dev *pdev = to_pci_dev(dev);
 726         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 727         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 728         int ret;
 729
 730         if (nouveau_runtime_pm == 0)
 731                 return -EINVAL;
 732
 733         pci_set_power_state(pdev, PCI_D0);
 734         pci_restore_state(pdev);
 735         ret = pci_enable_device(pdev);
 736         if (ret)
 737                 return ret;
 738         pci_set_master(pdev);
 739
 740         ret = nouveau_do_resume(drm_dev, true);
 741         drm_kms_helper_poll_enable(drm_dev);
 742         /* do magic */
 743         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 744         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 745         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 746         return ret;
 747 }
 748
 749 static int
 750 nouveau_pmops_runtime_idle(struct device *dev)
 751 {
 752         struct pci_dev *pdev = to_pci_dev(dev);
 753         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 754         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 755         struct drm_crtc *crtc;
 756
 757         if (nouveau_runtime_pm == 0) {
 758                 pm_runtime_forbid(dev);
 759                 return -EBUSY;
 760         }
 761
 762         /* are we optimus enabled? */
 763         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 764                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 765                 pm_runtime_forbid(dev);
 766                 return -EBUSY;
 767         }
 768
 769         /* if we have a hdmi audio device - make sure it has a driver loaded */
 770         if (drm->hdmi_device) {
 771                 if (!drm->hdmi_device->driver) {
 772                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 773                         pm_runtime_mark_last_busy(dev);
 774                         return -EBUSY;
 775                 }
 776         }
 777
 778         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 779                 if (crtc->enabled) {
 780                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 781                         return -EBUSY;
 782                 }
 783         }
 784         pm_runtime_mark_last_busy(dev);
 785         pm_runtime_autosuspend(dev);
 786         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 787         return 1;
 788 }
 789
 790 static int
 791 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 792 {
 793         struct nouveau_drm *drm = nouveau_drm(dev);
 794         struct nouveau_cli *cli;
 795         char name[32], tmpname[TASK_COMM_LEN];
 796         int ret;
 797
 798         /* need to bring up power immediately if opening device */
 799         ret = pm_runtime_get_sync(dev->dev);
 800         if (ret < 0 && ret != -EACCES)
 801                 return ret;
 802
 803         get_task_comm(tmpname, current);
 804         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 805
 806         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 807
 808         if (ret)
 809                 goto out_suspend;
 810
 811         cli->base.super = false;
 812
 813         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 814                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 815                                   0x1000, NULL, &cli->vm);
 816                 if (ret) {
 817                         nouveau_cli_destroy(cli);
 818                         goto out_suspend;
 819                 }
 820
 821                 nvxx_client(&cli->base)->vm = cli->vm;
 822         }
 823
 824         fpriv->driver_priv = cli;
 825
 826         mutex_lock(&drm->client.mutex);
 827         list_add(&cli->head, &drm->clients);
 828         mutex_unlock(&drm->client.mutex);
 829
 830 out_suspend:
 831         pm_runtime_mark_last_busy(dev->dev);
 832         pm_runtime_put_autosuspend(dev->dev);
 833
 834         return ret;
 835 }
 836
 837 static void
 838 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 839 {
 840         struct nouveau_cli *cli = nouveau_cli(fpriv);
 841         struct nouveau_drm *drm = nouveau_drm(dev);
 842
 843         pm_runtime_get_sync(dev->dev);
 844
 845         mutex_lock(&cli->mutex);
 846         if (cli->abi16)
 847                 nouveau_abi16_fini(cli->abi16);
 848         mutex_unlock(&cli->mutex);
 849
 850         mutex_lock(&drm->client.mutex);
 851         list_del(&cli->head);
 852         mutex_unlock(&drm->client.mutex);
 853
 854 }
 855
 856 static void
 857 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 858 {
 859         struct nouveau_cli *cli = nouveau_cli(fpriv);
 860         nouveau_cli_destroy(cli);
 861         pm_runtime_mark_last_busy(dev->dev);
 862         pm_runtime_put_autosuspend(dev->dev);
 863 }
 864
 865 static const struct drm_ioctl_desc
 866 nouveau_ioctls[] = {
 867         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 868         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 869         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 870         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 871         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 872         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 873         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 874         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 875         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 876         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 877         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 878         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 879 };
 880
 881 long
 882 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 883 {
 884         struct drm_file *filp = file->private_data;
 885         struct drm_device *dev = filp->minor->dev;
 886         long ret;
 887
 888         ret = pm_runtime_get_sync(dev->dev);
 889         if (ret < 0 && ret != -EACCES)
 890                 return ret;
 891
 892         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 893         case DRM_NOUVEAU_NVIF:
 894                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 895                 break;
 896         default:
 897                 ret = drm_ioctl(file, cmd, arg);
 898                 break;
 899         }
 900
 901         pm_runtime_mark_last_busy(dev->dev);
 902         pm_runtime_put_autosuspend(dev->dev);
 903         return ret;
 904 }
 905
 906 static const struct file_operations
 907 nouveau_driver_fops = {
 908         .owner = THIS_MODULE,
 909         .open = drm_open,
 910         .release = drm_release,
 911         .unlocked_ioctl = nouveau_drm_ioctl,
 912         .mmap = nouveau_ttm_mmap,
 913         .poll = drm_poll,
 914         .read = drm_read,
 915 #if defined(CONFIG_COMPAT)
 916         .compat_ioctl = nouveau_compat_ioctl,
 917 #endif
 918         .llseek = noop_llseek,
 919 };
 920
 921 static struct drm_driver
 922 driver_stub = {
 923         .driver_features =
 924                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 925                 DRIVER_KMS_LEGACY_CONTEXT,
 926
 927         .load = nouveau_drm_load,
 928         .unload = nouveau_drm_unload,
 929         .open = nouveau_drm_open,
 930         .preclose = nouveau_drm_preclose,
 931         .postclose = nouveau_drm_postclose,
 932         .lastclose = nouveau_vga_lastclose,
 933
 934 #if defined(CONFIG_DEBUG_FS)
 935         .debugfs_init = nouveau_drm_debugfs_init,
 936         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 937 #endif
 938
 939         .get_vblank_counter = drm_vblank_no_hw_counter,
 940         .enable_vblank = nouveau_display_vblank_enable,
 941         .disable_vblank = nouveau_display_vblank_disable,
 942         .get_scanout_position = nouveau_display_scanoutpos,
 943         .get_vblank_timestamp = nouveau_display_vblstamp,
 944
 945         .ioctls = nouveau_ioctls,
 946         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 947         .fops = &nouveau_driver_fops,
 948
 949         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 950         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 951         .gem_prime_export = drm_gem_prime_export,
 952         .gem_prime_import = drm_gem_prime_import,
 953         .gem_prime_pin = nouveau_gem_prime_pin,
 954         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 955         .gem_prime_unpin = nouveau_gem_prime_unpin,
 956         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 957         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 958         .gem_prime_vmap = nouveau_gem_prime_vmap,
 959         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 960
 961         .gem_free_object = nouveau_gem_object_del,
 962         .gem_open_object = nouveau_gem_object_open,
 963         .gem_close_object = nouveau_gem_object_close,
 964
 965         .dumb_create = nouveau_display_dumb_create,
 966         .dumb_map_offset = nouveau_display_dumb_map_offset,
 967         .dumb_destroy = drm_gem_dumb_destroy,
 968
 969         .name = DRIVER_NAME,
 970         .desc = DRIVER_DESC,
 971 #ifdef GIT_REVISION
 972         .date = GIT_REVISION,
 973 #else
 974         .date = DRIVER_DATE,
 975 #endif
 976         .major = DRIVER_MAJOR,
 977         .minor = DRIVER_MINOR,
 978         .patchlevel = DRIVER_PATCHLEVEL,
 979 };
 980
 981 static struct pci_device_id
 982 nouveau_drm_pci_table[] = {
 983         {
 984                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 985                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 986                 .class_mask  = 0xff << 16,
 987         },
 988         {
 989                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 990                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 991                 .class_mask  = 0xff << 16,
 992         },
 993         {}
 994 };
 995
 996 static void nouveau_display_options(void)
 997 {
 998         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
 999
1000         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1001         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1002         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1003         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1004         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1005         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1006         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1007         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1008         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1009         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1010 }
1011
1012 static const struct dev_pm_ops nouveau_pm_ops = {
1013         .suspend = nouveau_pmops_suspend,
1014         .resume = nouveau_pmops_resume,
1015         .freeze = nouveau_pmops_freeze,
1016         .thaw = nouveau_pmops_thaw,
1017         .poweroff = nouveau_pmops_freeze,
1018         .restore = nouveau_pmops_resume,
1019         .runtime_suspend = nouveau_pmops_runtime_suspend,
1020         .runtime_resume = nouveau_pmops_runtime_resume,
1021         .runtime_idle = nouveau_pmops_runtime_idle,
1022 };
1023
1024 static struct pci_driver
1025 nouveau_drm_pci_driver = {
1026         .name = "nouveau",
1027         .id_table = nouveau_drm_pci_table,
1028         .probe = nouveau_drm_probe,
1029         .remove = nouveau_drm_remove,
1030         .driver.pm = &nouveau_pm_ops,
1031 };
1032
1033 struct drm_device *
1034 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1035                                struct platform_device *pdev,
1036                                struct nvkm_device **pdevice)
1037 {
1038         struct drm_device *drm;
1039         int err;
1040
1041         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1042                                     true, true, ~0ULL, pdevice);
1043         if (err)
1044                 goto err_free;
1045
1046         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1047         if (!drm) {
1048                 err = -ENOMEM;
1049                 goto err_free;
1050         }
1051
1052         drm->platformdev = pdev;
1053         platform_set_drvdata(pdev, drm);
1054
1055         return drm;
1056
1057 err_free:
1058         nvkm_device_del(pdevice);
1059
1060         return ERR_PTR(err);
1061 }
1062
1063 static int __init
1064 nouveau_drm_init(void)
1065 {
1066         driver_pci = driver_stub;
1067         driver_pci.set_busid = drm_pci_set_busid;
1068         driver_platform = driver_stub;
1069         driver_platform.set_busid = drm_platform_set_busid;
1070
1071         nouveau_display_options();
1072
1073         if (nouveau_modeset == -1) {
1074 #ifdef CONFIG_VGA_CONSOLE
1075                 if (vgacon_text_force())
1076                         nouveau_modeset = 0;
1077 #endif
1078         }
1079
1080         if (!nouveau_modeset)
1081                 return 0;
1082
1083 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1084         platform_driver_register(&nouveau_platform_driver);
1085 #endif
1086
1087         nouveau_register_dsm_handler();
1088         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1089 }
1090
1091 static void __exit
1092 nouveau_drm_exit(void)
1093 {
1094         if (!nouveau_modeset)
1095                 return;
1096
1097         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1098         nouveau_unregister_dsm_handler();
1099
1100 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1101         platform_driver_unregister(&nouveau_platform_driver);
1102 #endif
1103 }
1104
1105 module_init(nouveau_drm_init);
1106 module_exit(nouveau_drm_exit);
1107
1108 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1109 MODULE_AUTHOR(DRIVER_AUTHOR);
1110 MODULE_DESCRIPTION(DRIVER_DESC);
1111 MODULE_LICENSE("GPL and additional rights");