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_led.h"
  51 #include "nouveau_hwmon.h"
  52 #include "nouveau_acpi.h"
  53 #include "nouveau_bios.h"
  54 #include "nouveau_ioctl.h"
  55 #include "nouveau_abi16.h"
  56 #include "nouveau_fbcon.h"
  57 #include "nouveau_fence.h"
  58 #include "nouveau_debugfs.h"
  59 #include "nouveau_usif.h"
  60 #include "nouveau_connector.h"
  61 #include "nouveau_platform.h"
  62
  63 MODULE_PARM_DESC(config, "option string to pass to driver core");
  64 static char *nouveau_config;
  65 module_param_named(config, nouveau_config, charp, 0400);
  66
  67 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  68 static char *nouveau_debug;
  69 module_param_named(debug, nouveau_debug, charp, 0400);
  70
  71 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  72 static int nouveau_noaccel = 0;
  73 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  74
  75 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  76                           "0 = disabled, 1 = enabled, 2 = headless)");
  77 int nouveau_modeset = -1;
  78 module_param_named(modeset, nouveau_modeset, int, 0400);
  79
  80 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  81 int nouveau_runtime_pm = -1;
  82 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  83
  84 static struct drm_driver driver_stub;
  85 static struct drm_driver driver_pci;
  86 static struct drm_driver driver_platform;
  87
  88 static u64
  89 nouveau_pci_name(struct pci_dev *pdev)
  90 {
  91         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  92         name |= pdev->bus->number << 16;
  93         name |= PCI_SLOT(pdev->devfn) << 8;
  94         return name | PCI_FUNC(pdev->devfn);
  95 }
  96
  97 static u64
  98 nouveau_platform_name(struct platform_device *platformdev)
  99 {
 100         return platformdev->id;
 101 }
 102
 103 static u64
 104 nouveau_name(struct drm_device *dev)
 105 {
 106         if (dev->pdev)
 107                 return nouveau_pci_name(dev->pdev);
 108         else
 109                 return nouveau_platform_name(dev->platformdev);
 110 }
 111
 112 static int
 113 nouveau_cli_create(struct drm_device *dev, const char *sname,
 114                    int size, void **pcli)
 115 {
 116         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 117         int ret;
 118         if (cli) {
 119                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
 120                 cli->dev = dev;
 121
 122                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
 123                                        nouveau_config, nouveau_debug,
 124                                        &cli->base);
 125                 if (ret == 0) {
 126                         mutex_init(&cli->mutex);
 127                         usif_client_init(cli);
 128                 }
 129                 return ret;
 130         }
 131         return -ENOMEM;
 132 }
 133
 134 static void
 135 nouveau_cli_destroy(struct nouveau_cli *cli)
 136 {
 137         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 138         nvif_client_fini(&cli->base);
 139         usif_client_fini(cli);
 140         kfree(cli);
 141 }
 142
 143 static void
 144 nouveau_accel_fini(struct nouveau_drm *drm)
 145 {
 146         nouveau_channel_idle(drm->channel);
 147         nvif_object_fini(&drm->ntfy);
 148         nvkm_gpuobj_del(&drm->notify);
 149         nvif_notify_fini(&drm->flip);
 150         nvif_object_fini(&drm->nvsw);
 151         nouveau_channel_del(&drm->channel);
 152
 153         nouveau_channel_idle(drm->cechan);
 154         nvif_object_fini(&drm->ttm.copy);
 155         nouveau_channel_del(&drm->cechan);
 156
 157         if (drm->fence)
 158                 nouveau_fence(drm)->dtor(drm);
 159 }
 160
 161 static void
 162 nouveau_accel_init(struct nouveau_drm *drm)
 163 {
 164         struct nvif_device *device = &drm->device;
 165         struct nvif_sclass *sclass;
 166         u32 arg0, arg1;
 167         int ret, i, n;
 168
 169         if (nouveau_noaccel)
 170                 return;
 171
 172         /* initialise synchronisation routines */
 173         /*XXX: this is crap, but the fence/channel stuff is a little
 174          *     backwards in some places.  this will be fixed.
 175          */
 176         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 177         if (ret < 0)
 178                 return;
 179
 180         for (ret = -ENOSYS, i = 0; i < n; i++) {
 181                 switch (sclass[i].oclass) {
 182                 case NV03_CHANNEL_DMA:
 183                         ret = nv04_fence_create(drm);
 184                         break;
 185                 case NV10_CHANNEL_DMA:
 186                         ret = nv10_fence_create(drm);
 187                         break;
 188                 case NV17_CHANNEL_DMA:
 189                 case NV40_CHANNEL_DMA:
 190                         ret = nv17_fence_create(drm);
 191                         break;
 192                 case NV50_CHANNEL_GPFIFO:
 193                         ret = nv50_fence_create(drm);
 194                         break;
 195                 case G82_CHANNEL_GPFIFO:
 196                         ret = nv84_fence_create(drm);
 197                         break;
 198                 case FERMI_CHANNEL_GPFIFO:
 199                 case KEPLER_CHANNEL_GPFIFO_A:
 200                 case KEPLER_CHANNEL_GPFIFO_B:
 201                 case MAXWELL_CHANNEL_GPFIFO_A:
 202                 case PASCAL_CHANNEL_GPFIFO_A:
 203                         ret = nvc0_fence_create(drm);
 204                         break;
 205                 default:
 206                         break;
 207                 }
 208         }
 209
 210         nvif_object_sclass_put(&sclass);
 211         if (ret) {
 212                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 213                 nouveau_accel_fini(drm);
 214                 return;
 215         }
 216
 217         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 218                 ret = nouveau_channel_new(drm, &drm->device,
 219                                           NVA06F_V0_ENGINE_CE0 |
 220                                           NVA06F_V0_ENGINE_CE1,
 221                                           0, &drm->cechan);
 222                 if (ret)
 223                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 224
 225                 arg0 = NVA06F_V0_ENGINE_GR;
 226                 arg1 = 1;
 227         } else
 228         if (device->info.chipset >= 0xa3 &&
 229             device->info.chipset != 0xaa &&
 230             device->info.chipset != 0xac) {
 231                 ret = nouveau_channel_new(drm, &drm->device,
 232                                           NvDmaFB, NvDmaTT, &drm->cechan);
 233                 if (ret)
 234                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 235
 236                 arg0 = NvDmaFB;
 237                 arg1 = NvDmaTT;
 238         } else {
 239                 arg0 = NvDmaFB;
 240                 arg1 = NvDmaTT;
 241         }
 242
 243         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 244         if (ret) {
 245                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 246                 nouveau_accel_fini(drm);
 247                 return;
 248         }
 249
 250         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 251                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 252         if (ret == 0) {
 253                 ret = RING_SPACE(drm->channel, 2);
 254                 if (ret == 0) {
 255                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 256                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 257                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 258                         } else
 259                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 260                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 261                                 OUT_RING  (drm->channel, 0x001f0000);
 262                         }
 263                 }
 264
 265                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 266                                        false, NV04_NVSW_NTFY_UEVENT,
 267                                        NULL, 0, 0, &drm->flip);
 268                 if (ret == 0)
 269                         ret = nvif_notify_get(&drm->flip);
 270                 if (ret) {
 271                         nouveau_accel_fini(drm);
 272                         return;
 273                 }
 274         }
 275
 276         if (ret) {
 277                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 278                 nouveau_accel_fini(drm);
 279                 return;
 280         }
 281
 282         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 283                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 284                                       NULL, &drm->notify);
 285                 if (ret) {
 286                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 287                         nouveau_accel_fini(drm);
 288                         return;
 289                 }
 290
 291                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 292                                        NV_DMA_IN_MEMORY,
 293                                        &(struct nv_dma_v0) {
 294                                                 .target = NV_DMA_V0_TARGET_VRAM,
 295                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 296                                                 .start = drm->notify->addr,
 297                                                 .limit = drm->notify->addr + 31
 298                                        }, sizeof(struct nv_dma_v0),
 299                                        &drm->ntfy);
 300                 if (ret) {
 301                         nouveau_accel_fini(drm);
 302                         return;
 303                 }
 304         }
 305
 306
 307         nouveau_bo_move_init(drm);
 308 }
 309
 310 static int nouveau_drm_probe(struct pci_dev *pdev,
 311                              const struct pci_device_id *pent)
 312 {
 313         struct nvkm_device *device;
 314         struct apertures_struct *aper;
 315         bool boot = false;
 316         int ret;
 317
 318         if (vga_switcheroo_client_probe_defer(pdev))
 319                 return -EPROBE_DEFER;
 320
 321         /* We need to check that the chipset is supported before booting
 322          * fbdev off the hardware, as there's no way to put it back.
 323          */
 324         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 325         if (ret)
 326                 return ret;
 327
 328         nvkm_device_del(&device);
 329
 330         /* Remove conflicting drivers (vesafb, efifb etc). */
 331         aper = alloc_apertures(3);
 332         if (!aper)
 333                 return -ENOMEM;
 334
 335         aper->ranges[0].base = pci_resource_start(pdev, 1);
 336         aper->ranges[0].size = pci_resource_len(pdev, 1);
 337         aper->count = 1;
 338
 339         if (pci_resource_len(pdev, 2)) {
 340                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 341                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 342                 aper->count++;
 343         }
 344
 345         if (pci_resource_len(pdev, 3)) {
 346                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 347                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 348                 aper->count++;
 349         }
 350
 351 #ifdef CONFIG_X86
 352         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 353 #endif
 354         if (nouveau_modeset != 2)
 355                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 356         kfree(aper);
 357
 358         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 359                                   true, true, ~0ULL, &device);
 360         if (ret)
 361                 return ret;
 362
 363         pci_set_master(pdev);
 364
 365         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 366         if (ret) {
 367                 nvkm_device_del(&device);
 368                 return ret;
 369         }
 370
 371         return 0;
 372 }
 373
 374 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 375
 376 static void
 377 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 378 {
 379         struct pci_dev *pdev = drm->dev->pdev;
 380
 381         if (!pdev) {
 382                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
 383                 drm->hdmi_device = NULL;
 384                 return;
 385         }
 386
 387         /* subfunction one is a hdmi audio device? */
 388         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 389                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 390
 391         if (!drm->hdmi_device) {
 392                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 393                 return;
 394         }
 395
 396         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 397                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 398                 pci_dev_put(drm->hdmi_device);
 399                 drm->hdmi_device = NULL;
 400                 return;
 401         }
 402 }
 403
 404 static int
 405 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 406 {
 407         struct nouveau_drm *drm;
 408         int ret;
 409
 410         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 411         if (ret)
 412                 return ret;
 413
 414         dev->dev_private = drm;
 415         drm->dev = dev;
 416         nvxx_client(&drm->client.base)->debug =
 417                 nvkm_dbgopt(nouveau_debug, "DRM");
 418
 419         INIT_LIST_HEAD(&drm->clients);
 420         spin_lock_init(&drm->tile.lock);
 421
 422         nouveau_get_hdmi_dev(drm);
 423
 424         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 425                                &(struct nv_device_v0) {
 426                                         .device = ~0,
 427                                }, sizeof(struct nv_device_v0),
 428                                &drm->device);
 429         if (ret)
 430                 goto fail_device;
 431
 432         dev->irq_enabled = true;
 433
 434         /* workaround an odd issue on nvc1 by disabling the device's
 435          * nosnoop capability.  hopefully won't cause issues until a
 436          * better fix is found - assuming there is one...
 437          */
 438         if (drm->device.info.chipset == 0xc1)
 439                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 440
 441         nouveau_vga_init(drm);
 442
 443         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 444                 if (!nvxx_device(&drm->device)->mmu) {
 445                         ret = -ENOSYS;
 446                         goto fail_device;
 447                 }
 448
 449                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 450                                   0x1000, NULL, &drm->client.vm);
 451                 if (ret)
 452                         goto fail_device;
 453
 454                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 455         }
 456
 457         ret = nouveau_ttm_init(drm);
 458         if (ret)
 459                 goto fail_ttm;
 460
 461         ret = nouveau_bios_init(dev);
 462         if (ret)
 463                 goto fail_bios;
 464
 465         ret = nouveau_display_create(dev);
 466         if (ret)
 467                 goto fail_dispctor;
 468
 469         if (dev->mode_config.num_crtc) {
 470                 ret = nouveau_display_init(dev);
 471                 if (ret)
 472                         goto fail_dispinit;
 473         }
 474
 475         nouveau_debugfs_init(drm);
 476         nouveau_hwmon_init(dev);
 477         nouveau_accel_init(drm);
 478         nouveau_fbcon_init(dev);
 479         nouveau_led_init(dev);
 480
 481         if (nouveau_runtime_pm != 0) {
 482                 pm_runtime_use_autosuspend(dev->dev);
 483                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 484                 pm_runtime_set_active(dev->dev);
 485                 pm_runtime_allow(dev->dev);
 486                 pm_runtime_mark_last_busy(dev->dev);
 487                 pm_runtime_put(dev->dev);
 488         }
 489         return 0;
 490
 491 fail_dispinit:
 492         nouveau_display_destroy(dev);
 493 fail_dispctor:
 494         nouveau_bios_takedown(dev);
 495 fail_bios:
 496         nouveau_ttm_fini(drm);
 497 fail_ttm:
 498         nouveau_vga_fini(drm);
 499 fail_device:
 500         nvif_device_fini(&drm->device);
 501         nouveau_cli_destroy(&drm->client);
 502         return ret;
 503 }
 504
 505 static int
 506 nouveau_drm_unload(struct drm_device *dev)
 507 {
 508         struct nouveau_drm *drm = nouveau_drm(dev);
 509
 510         if (nouveau_runtime_pm != 0) {
 511                 pm_runtime_get_sync(dev->dev);
 512                 pm_runtime_forbid(dev->dev);
 513         }
 514
 515         nouveau_led_fini(dev);
 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, false);
 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         nouveau_led_suspend(dev);
 568
 569         if (dev->mode_config.num_crtc) {
 570                 NV_INFO(drm, "suspending console...\n");
 571                 nouveau_fbcon_set_suspend(dev, 1);
 572                 NV_INFO(drm, "suspending display...\n");
 573                 ret = nouveau_display_suspend(dev, runtime);
 574                 if (ret)
 575                         return ret;
 576         }
 577
 578         NV_INFO(drm, "evicting buffers...\n");
 579         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 580
 581         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 582         if (drm->cechan) {
 583                 ret = nouveau_channel_idle(drm->cechan);
 584                 if (ret)
 585                         goto fail_display;
 586         }
 587
 588         if (drm->channel) {
 589                 ret = nouveau_channel_idle(drm->channel);
 590                 if (ret)
 591                         goto fail_display;
 592         }
 593
 594         NV_INFO(drm, "suspending client object trees...\n");
 595         if (drm->fence && nouveau_fence(drm)->suspend) {
 596                 if (!nouveau_fence(drm)->suspend(drm)) {
 597                         ret = -ENOMEM;
 598                         goto fail_display;
 599                 }
 600         }
 601
 602         list_for_each_entry(cli, &drm->clients, head) {
 603                 ret = nvif_client_suspend(&cli->base);
 604                 if (ret)
 605                         goto fail_client;
 606         }
 607
 608         NV_INFO(drm, "suspending kernel object tree...\n");
 609         ret = nvif_client_suspend(&drm->client.base);
 610         if (ret)
 611                 goto fail_client;
 612
 613         return 0;
 614
 615 fail_client:
 616         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 617                 nvif_client_resume(&cli->base);
 618         }
 619
 620         if (drm->fence && nouveau_fence(drm)->resume)
 621                 nouveau_fence(drm)->resume(drm);
 622
 623 fail_display:
 624         if (dev->mode_config.num_crtc) {
 625                 NV_INFO(drm, "resuming display...\n");
 626                 nouveau_display_resume(dev, runtime);
 627         }
 628         return ret;
 629 }
 630
 631 static int
 632 nouveau_do_resume(struct drm_device *dev, bool runtime)
 633 {
 634         struct nouveau_drm *drm = nouveau_drm(dev);
 635         struct nouveau_cli *cli;
 636
 637         NV_INFO(drm, "resuming kernel object tree...\n");
 638         nvif_client_resume(&drm->client.base);
 639
 640         NV_INFO(drm, "resuming client object trees...\n");
 641         if (drm->fence && nouveau_fence(drm)->resume)
 642                 nouveau_fence(drm)->resume(drm);
 643
 644         list_for_each_entry(cli, &drm->clients, head) {
 645                 nvif_client_resume(&cli->base);
 646         }
 647
 648         nouveau_run_vbios_init(dev);
 649
 650         if (dev->mode_config.num_crtc) {
 651                 NV_INFO(drm, "resuming display...\n");
 652                 nouveau_display_resume(dev, runtime);
 653                 NV_INFO(drm, "resuming console...\n");
 654                 nouveau_fbcon_set_suspend(dev, 0);
 655         }
 656
 657         nouveau_led_resume(dev);
 658
 659         return 0;
 660 }
 661
 662 int
 663 nouveau_pmops_suspend(struct device *dev)
 664 {
 665         struct pci_dev *pdev = to_pci_dev(dev);
 666         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 667         int ret;
 668
 669         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 670             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 671                 return 0;
 672
 673         ret = nouveau_do_suspend(drm_dev, false);
 674         if (ret)
 675                 return ret;
 676
 677         pci_save_state(pdev);
 678         pci_disable_device(pdev);
 679         pci_set_power_state(pdev, PCI_D3hot);
 680         udelay(200);
 681         return 0;
 682 }
 683
 684 int
 685 nouveau_pmops_resume(struct device *dev)
 686 {
 687         struct pci_dev *pdev = to_pci_dev(dev);
 688         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 689         int ret;
 690
 691         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 692             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 693                 return 0;
 694
 695         pci_set_power_state(pdev, PCI_D0);
 696         pci_restore_state(pdev);
 697         ret = pci_enable_device(pdev);
 698         if (ret)
 699                 return ret;
 700         pci_set_master(pdev);
 701
 702         ret = nouveau_do_resume(drm_dev, false);
 703
 704         /* Monitors may have been connected / disconnected during suspend */
 705         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 706
 707         return ret;
 708 }
 709
 710 static int
 711 nouveau_pmops_freeze(struct device *dev)
 712 {
 713         struct pci_dev *pdev = to_pci_dev(dev);
 714         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 715         return nouveau_do_suspend(drm_dev, false);
 716 }
 717
 718 static int
 719 nouveau_pmops_thaw(struct device *dev)
 720 {
 721         struct pci_dev *pdev = to_pci_dev(dev);
 722         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 723         return nouveau_do_resume(drm_dev, false);
 724 }
 725
 726 static int
 727 nouveau_pmops_runtime_suspend(struct device *dev)
 728 {
 729         struct pci_dev *pdev = to_pci_dev(dev);
 730         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 731         int ret;
 732
 733         if (nouveau_runtime_pm == 0) {
 734                 pm_runtime_forbid(dev);
 735                 return -EBUSY;
 736         }
 737
 738         /* are we optimus enabled? */
 739         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 740                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 741                 pm_runtime_forbid(dev);
 742                 return -EBUSY;
 743         }
 744
 745         drm_kms_helper_poll_disable(drm_dev);
 746         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 747         nouveau_switcheroo_optimus_dsm();
 748         ret = nouveau_do_suspend(drm_dev, true);
 749         pci_save_state(pdev);
 750         pci_disable_device(pdev);
 751         pci_ignore_hotplug(pdev);
 752         pci_set_power_state(pdev, PCI_D3cold);
 753         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 754         return ret;
 755 }
 756
 757 static int
 758 nouveau_pmops_runtime_resume(struct device *dev)
 759 {
 760         struct pci_dev *pdev = to_pci_dev(dev);
 761         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 762         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 763         int ret;
 764
 765         if (nouveau_runtime_pm == 0)
 766                 return -EINVAL;
 767
 768         pci_set_power_state(pdev, PCI_D0);
 769         pci_restore_state(pdev);
 770         ret = pci_enable_device(pdev);
 771         if (ret)
 772                 return ret;
 773         pci_set_master(pdev);
 774
 775         ret = nouveau_do_resume(drm_dev, true);
 776
 777         if (!drm_dev->mode_config.poll_enabled)
 778                 drm_kms_helper_poll_enable(drm_dev);
 779
 780         /* do magic */
 781         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 782         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 783         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 784
 785         /* Monitors may have been connected / disconnected during suspend */
 786         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 787
 788         return ret;
 789 }
 790
 791 static int
 792 nouveau_pmops_runtime_idle(struct device *dev)
 793 {
 794         struct pci_dev *pdev = to_pci_dev(dev);
 795         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 796         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 797         struct drm_crtc *crtc;
 798
 799         if (nouveau_runtime_pm == 0) {
 800                 pm_runtime_forbid(dev);
 801                 return -EBUSY;
 802         }
 803
 804         /* are we optimus enabled? */
 805         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 806                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 807                 pm_runtime_forbid(dev);
 808                 return -EBUSY;
 809         }
 810
 811         /* if we have a hdmi audio device - make sure it has a driver loaded */
 812         if (drm->hdmi_device) {
 813                 if (!drm->hdmi_device->driver) {
 814                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 815                         pm_runtime_mark_last_busy(dev);
 816                         return -EBUSY;
 817                 }
 818         }
 819
 820         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 821                 if (crtc->enabled) {
 822                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 823                         return -EBUSY;
 824                 }
 825         }
 826         pm_runtime_mark_last_busy(dev);
 827         pm_runtime_autosuspend(dev);
 828         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 829         return 1;
 830 }
 831
 832 static int
 833 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 834 {
 835         struct nouveau_drm *drm = nouveau_drm(dev);
 836         struct nouveau_cli *cli;
 837         char name[32], tmpname[TASK_COMM_LEN];
 838         int ret;
 839
 840         /* need to bring up power immediately if opening device */
 841         ret = pm_runtime_get_sync(dev->dev);
 842         if (ret < 0 && ret != -EACCES)
 843                 return ret;
 844
 845         get_task_comm(tmpname, current);
 846         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 847
 848         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 849
 850         if (ret)
 851                 goto out_suspend;
 852
 853         cli->base.super = false;
 854
 855         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 856                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 857                                   0x1000, NULL, &cli->vm);
 858                 if (ret) {
 859                         nouveau_cli_destroy(cli);
 860                         goto out_suspend;
 861                 }
 862
 863                 nvxx_client(&cli->base)->vm = cli->vm;
 864         }
 865
 866         fpriv->driver_priv = cli;
 867
 868         mutex_lock(&drm->client.mutex);
 869         list_add(&cli->head, &drm->clients);
 870         mutex_unlock(&drm->client.mutex);
 871
 872 out_suspend:
 873         pm_runtime_mark_last_busy(dev->dev);
 874         pm_runtime_put_autosuspend(dev->dev);
 875
 876         return ret;
 877 }
 878
 879 static void
 880 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 881 {
 882         struct nouveau_cli *cli = nouveau_cli(fpriv);
 883         struct nouveau_drm *drm = nouveau_drm(dev);
 884
 885         pm_runtime_get_sync(dev->dev);
 886
 887         mutex_lock(&cli->mutex);
 888         if (cli->abi16)
 889                 nouveau_abi16_fini(cli->abi16);
 890         mutex_unlock(&cli->mutex);
 891
 892         mutex_lock(&drm->client.mutex);
 893         list_del(&cli->head);
 894         mutex_unlock(&drm->client.mutex);
 895
 896 }
 897
 898 static void
 899 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 900 {
 901         struct nouveau_cli *cli = nouveau_cli(fpriv);
 902         nouveau_cli_destroy(cli);
 903         pm_runtime_mark_last_busy(dev->dev);
 904         pm_runtime_put_autosuspend(dev->dev);
 905 }
 906
 907 static const struct drm_ioctl_desc
 908 nouveau_ioctls[] = {
 909         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 910         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 911         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 912         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 913         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 914         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 915         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 916         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 917         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 918         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 919         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 920         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 921 };
 922
 923 long
 924 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 925 {
 926         struct drm_file *filp = file->private_data;
 927         struct drm_device *dev = filp->minor->dev;
 928         long ret;
 929
 930         ret = pm_runtime_get_sync(dev->dev);
 931         if (ret < 0 && ret != -EACCES)
 932                 return ret;
 933
 934         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 935         case DRM_NOUVEAU_NVIF:
 936                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 937                 break;
 938         default:
 939                 ret = drm_ioctl(file, cmd, arg);
 940                 break;
 941         }
 942
 943         pm_runtime_mark_last_busy(dev->dev);
 944         pm_runtime_put_autosuspend(dev->dev);
 945         return ret;
 946 }
 947
 948 static const struct file_operations
 949 nouveau_driver_fops = {
 950         .owner = THIS_MODULE,
 951         .open = drm_open,
 952         .release = drm_release,
 953         .unlocked_ioctl = nouveau_drm_ioctl,
 954         .mmap = nouveau_ttm_mmap,
 955         .poll = drm_poll,
 956         .read = drm_read,
 957 #if defined(CONFIG_COMPAT)
 958         .compat_ioctl = nouveau_compat_ioctl,
 959 #endif
 960         .llseek = noop_llseek,
 961 };
 962
 963 static struct drm_driver
 964 driver_stub = {
 965         .driver_features =
 966                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 967                 DRIVER_KMS_LEGACY_CONTEXT,
 968
 969         .load = nouveau_drm_load,
 970         .unload = nouveau_drm_unload,
 971         .open = nouveau_drm_open,
 972         .preclose = nouveau_drm_preclose,
 973         .postclose = nouveau_drm_postclose,
 974         .lastclose = nouveau_vga_lastclose,
 975
 976 #if defined(CONFIG_DEBUG_FS)
 977         .debugfs_init = nouveau_drm_debugfs_init,
 978         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 979 #endif
 980
 981         .get_vblank_counter = drm_vblank_no_hw_counter,
 982         .enable_vblank = nouveau_display_vblank_enable,
 983         .disable_vblank = nouveau_display_vblank_disable,
 984         .get_scanout_position = nouveau_display_scanoutpos,
 985         .get_vblank_timestamp = nouveau_display_vblstamp,
 986
 987         .ioctls = nouveau_ioctls,
 988         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 989         .fops = &nouveau_driver_fops,
 990
 991         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 992         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 993         .gem_prime_export = drm_gem_prime_export,
 994         .gem_prime_import = drm_gem_prime_import,
 995         .gem_prime_pin = nouveau_gem_prime_pin,
 996         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 997         .gem_prime_unpin = nouveau_gem_prime_unpin,
 998         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 999         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1000         .gem_prime_vmap = nouveau_gem_prime_vmap,
1001         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1002
1003         .gem_free_object_unlocked = nouveau_gem_object_del,
1004         .gem_open_object = nouveau_gem_object_open,
1005         .gem_close_object = nouveau_gem_object_close,
1006
1007         .dumb_create = nouveau_display_dumb_create,
1008         .dumb_map_offset = nouveau_display_dumb_map_offset,
1009         .dumb_destroy = drm_gem_dumb_destroy,
1010
1011         .name = DRIVER_NAME,
1012         .desc = DRIVER_DESC,
1013 #ifdef GIT_REVISION
1014         .date = GIT_REVISION,
1015 #else
1016         .date = DRIVER_DATE,
1017 #endif
1018         .major = DRIVER_MAJOR,
1019         .minor = DRIVER_MINOR,
1020         .patchlevel = DRIVER_PATCHLEVEL,
1021 };
1022
1023 static struct pci_device_id
1024 nouveau_drm_pci_table[] = {
1025         {
1026                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1027                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1028                 .class_mask  = 0xff << 16,
1029         },
1030         {
1031                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1032                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1033                 .class_mask  = 0xff << 16,
1034         },
1035         {}
1036 };
1037
1038 static void nouveau_display_options(void)
1039 {
1040         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1041
1042         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1043         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1044         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1045         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1046         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1047         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1048         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1049         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1050         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1051         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1052         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1053 }
1054
1055 static const struct dev_pm_ops nouveau_pm_ops = {
1056         .suspend = nouveau_pmops_suspend,
1057         .resume = nouveau_pmops_resume,
1058         .freeze = nouveau_pmops_freeze,
1059         .thaw = nouveau_pmops_thaw,
1060         .poweroff = nouveau_pmops_freeze,
1061         .restore = nouveau_pmops_resume,
1062         .runtime_suspend = nouveau_pmops_runtime_suspend,
1063         .runtime_resume = nouveau_pmops_runtime_resume,
1064         .runtime_idle = nouveau_pmops_runtime_idle,
1065 };
1066
1067 static struct pci_driver
1068 nouveau_drm_pci_driver = {
1069         .name = "nouveau",
1070         .id_table = nouveau_drm_pci_table,
1071         .probe = nouveau_drm_probe,
1072         .remove = nouveau_drm_remove,
1073         .driver.pm = &nouveau_pm_ops,
1074 };
1075
1076 struct drm_device *
1077 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1078                                struct platform_device *pdev,
1079                                struct nvkm_device **pdevice)
1080 {
1081         struct drm_device *drm;
1082         int err;
1083
1084         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1085                                     true, true, ~0ULL, pdevice);
1086         if (err)
1087                 goto err_free;
1088
1089         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1090         if (IS_ERR(drm)) {
1091                 err = PTR_ERR(drm);
1092                 goto err_free;
1093         }
1094
1095         drm->platformdev = pdev;
1096         platform_set_drvdata(pdev, drm);
1097
1098         return drm;
1099
1100 err_free:
1101         nvkm_device_del(pdevice);
1102
1103         return ERR_PTR(err);
1104 }
1105
1106 static int __init
1107 nouveau_drm_init(void)
1108 {
1109         driver_pci = driver_stub;
1110         driver_pci.set_busid = drm_pci_set_busid;
1111         driver_platform = driver_stub;
1112
1113         nouveau_display_options();
1114
1115         if (nouveau_modeset == -1) {
1116                 if (vgacon_text_force())
1117                         nouveau_modeset = 0;
1118         }
1119
1120         if (!nouveau_modeset)
1121                 return 0;
1122
1123 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1124         platform_driver_register(&nouveau_platform_driver);
1125 #endif
1126
1127         nouveau_register_dsm_handler();
1128         nouveau_backlight_ctor();
1129         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1130 }
1131
1132 static void __exit
1133 nouveau_drm_exit(void)
1134 {
1135         if (!nouveau_modeset)
1136                 return;
1137
1138         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1139         nouveau_backlight_dtor();
1140         nouveau_unregister_dsm_handler();
1141
1142 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1143         platform_driver_unregister(&nouveau_platform_driver);
1144 #endif
1145 }
1146
1147 module_init(nouveau_drm_init);
1148 module_exit(nouveau_drm_exit);
1149
1150 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1151 MODULE_AUTHOR(DRIVER_AUTHOR);
1152 MODULE_DESCRIPTION(DRIVER_DESC);
1153 MODULE_LICENSE("GPL and additional rights");