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/module.h>
  27 #include <linux/pci.h>
  28 #include <linux/pm_runtime.h>
  29 #include <linux/vga_switcheroo.h>
  30
  31 #include "drmP.h"
  32 #include "drm_crtc_helper.h"
  33
  34 #include <core/device.h>
  35 #include <core/gpuobj.h>
  36 #include <core/option.h>
  37
  38 #include "nouveau_drm.h"
  39 #include "nouveau_dma.h"
  40 #include "nouveau_ttm.h"
  41 #include "nouveau_gem.h"
  42 #include "nouveau_agp.h"
  43 #include "nouveau_vga.h"
  44 #include "nouveau_sysfs.h"
  45 #include "nouveau_hwmon.h"
  46 #include "nouveau_acpi.h"
  47 #include "nouveau_bios.h"
  48 #include "nouveau_ioctl.h"
  49 #include "nouveau_abi16.h"
  50 #include "nouveau_fbcon.h"
  51 #include "nouveau_fence.h"
  52 #include "nouveau_debugfs.h"
  53 #include "nouveau_usif.h"
  54 #include "nouveau_connector.h"
  55 #include "nouveau_platform.h"
  56
  57 MODULE_PARM_DESC(config, "option string to pass to driver core");
  58 static char *nouveau_config;
  59 module_param_named(config, nouveau_config, charp, 0400);
  60
  61 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  62 static char *nouveau_debug;
  63 module_param_named(debug, nouveau_debug, charp, 0400);
  64
  65 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  66 static int nouveau_noaccel = 0;
  67 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  68
  69 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  70                           "0 = disabled, 1 = enabled, 2 = headless)");
  71 int nouveau_modeset = -1;
  72 module_param_named(modeset, nouveau_modeset, int, 0400);
  73
  74 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  75 int nouveau_runtime_pm = -1;
  76 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  77
  78 static struct drm_driver driver_stub;
  79 static struct drm_driver driver_pci;
  80 static struct drm_driver driver_platform;
  81
  82 static u64
  83 nouveau_pci_name(struct pci_dev *pdev)
  84 {
  85         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  86         name |= pdev->bus->number << 16;
  87         name |= PCI_SLOT(pdev->devfn) << 8;
  88         return name | PCI_FUNC(pdev->devfn);
  89 }
  90
  91 static u64
  92 nouveau_platform_name(struct platform_device *platformdev)
  93 {
  94         return platformdev->id;
  95 }
  96
  97 static u64
  98 nouveau_name(struct drm_device *dev)
  99 {
 100         if (dev->pdev)
 101                 return nouveau_pci_name(dev->pdev);
 102         else
 103                 return nouveau_platform_name(dev->platformdev);
 104 }
 105
 106 static int
 107 nouveau_cli_create(u64 name, const char *sname,
 108                    int size, void **pcli)
 109 {
 110         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 111         if (cli) {
 112                 int ret = nvif_client_init(NULL, NULL, sname, name,
 113                                            nouveau_config, nouveau_debug,
 114                                           &cli->base);
 115                 if (ret == 0) {
 116                         mutex_init(&cli->mutex);
 117                         usif_client_init(cli);
 118                 }
 119                 return ret;
 120         }
 121         return -ENOMEM;
 122 }
 123
 124 static void
 125 nouveau_cli_destroy(struct nouveau_cli *cli)
 126 {
 127         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 128         nvif_client_fini(&cli->base);
 129         usif_client_fini(cli);
 130 }
 131
 132 static void
 133 nouveau_accel_fini(struct nouveau_drm *drm)
 134 {
 135         nouveau_channel_del(&drm->channel);
 136         nvif_object_fini(&drm->ntfy);
 137         nvkm_gpuobj_ref(NULL, &drm->notify);
 138         nvif_object_fini(&drm->nvsw);
 139         nouveau_channel_del(&drm->cechan);
 140         nvif_object_fini(&drm->ttm.copy);
 141         if (drm->fence)
 142                 nouveau_fence(drm)->dtor(drm);
 143 }
 144
 145 static void
 146 nouveau_accel_init(struct nouveau_drm *drm)
 147 {
 148         struct nvif_device *device = &drm->device;
 149         u32 arg0, arg1;
 150         u32 sclass[16];
 151         int ret, i;
 152
 153         if (nouveau_noaccel)
 154                 return;
 155
 156         /* initialise synchronisation routines */
 157         /*XXX: this is crap, but the fence/channel stuff is a little
 158          *     backwards in some places.  this will be fixed.
 159          */
 160         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
 161         if (ret < 0)
 162                 return;
 163
 164         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
 165                 switch (sclass[i]) {
 166                 case NV03_CHANNEL_DMA:
 167                         ret = nv04_fence_create(drm);
 168                         break;
 169                 case NV10_CHANNEL_DMA:
 170                         ret = nv10_fence_create(drm);
 171                         break;
 172                 case NV17_CHANNEL_DMA:
 173                 case NV40_CHANNEL_DMA:
 174                         ret = nv17_fence_create(drm);
 175                         break;
 176                 case NV50_CHANNEL_GPFIFO:
 177                         ret = nv50_fence_create(drm);
 178                         break;
 179                 case G82_CHANNEL_GPFIFO:
 180                         ret = nv84_fence_create(drm);
 181                         break;
 182                 case FERMI_CHANNEL_GPFIFO:
 183                 case KEPLER_CHANNEL_GPFIFO_A:
 184                         ret = nvc0_fence_create(drm);
 185                         break;
 186                 default:
 187                         break;
 188                 }
 189         }
 190
 191         if (ret) {
 192                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 193                 nouveau_accel_fini(drm);
 194                 return;
 195         }
 196
 197         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 198                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 199                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 200                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 201                                           0, &drm->cechan);
 202                 if (ret)
 203                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 204
 205                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 206                 arg1 = 1;
 207         } else
 208         if (device->info.chipset >= 0xa3 &&
 209             device->info.chipset != 0xaa &&
 210             device->info.chipset != 0xac) {
 211                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 212                                           NvDmaFB, NvDmaTT, &drm->cechan);
 213                 if (ret)
 214                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 215
 216                 arg0 = NvDmaFB;
 217                 arg1 = NvDmaTT;
 218         } else {
 219                 arg0 = NvDmaFB;
 220                 arg1 = NvDmaTT;
 221         }
 222
 223         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
 224                                  &drm->channel);
 225         if (ret) {
 226                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 227                 nouveau_accel_fini(drm);
 228                 return;
 229         }
 230
 231         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
 232                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 233         if (ret == 0) {
 234                 struct nvkm_sw_chan *swch;
 235                 ret = RING_SPACE(drm->channel, 2);
 236                 if (ret == 0) {
 237                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 238                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 239                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 240                         } else
 241                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 242                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 243                                 OUT_RING  (drm->channel, 0x001f0000);
 244                         }
 245                 }
 246                 swch = (void *)nvxx_object(&drm->nvsw)->parent;
 247                 swch->flip = nouveau_flip_complete;
 248                 swch->flip_data = drm->channel;
 249         }
 250
 251         if (ret) {
 252                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 253                 nouveau_accel_fini(drm);
 254                 return;
 255         }
 256
 257         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 258                 ret = nvkm_gpuobj_new(nvxx_object(&drm->device), NULL, 32,
 259                                       0, 0, &drm->notify);
 260                 if (ret) {
 261                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 262                         nouveau_accel_fini(drm);
 263                         return;
 264                 }
 265
 266                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
 267                                        NV_DMA_IN_MEMORY,
 268                                        &(struct nv_dma_v0) {
 269                                                 .target = NV_DMA_V0_TARGET_VRAM,
 270                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 271                                                 .start = drm->notify->addr,
 272                                                 .limit = drm->notify->addr + 31
 273                                        }, sizeof(struct nv_dma_v0),
 274                                        &drm->ntfy);
 275                 if (ret) {
 276                         nouveau_accel_fini(drm);
 277                         return;
 278                 }
 279         }
 280
 281
 282         nouveau_bo_move_init(drm);
 283 }
 284
 285 static int nouveau_drm_probe(struct pci_dev *pdev,
 286                              const struct pci_device_id *pent)
 287 {
 288         struct nvkm_device *device;
 289         struct apertures_struct *aper;
 290         bool boot = false;
 291         int ret;
 292
 293         /* remove conflicting drivers (vesafb, efifb etc) */
 294         aper = alloc_apertures(3);
 295         if (!aper)
 296                 return -ENOMEM;
 297
 298         aper->ranges[0].base = pci_resource_start(pdev, 1);
 299         aper->ranges[0].size = pci_resource_len(pdev, 1);
 300         aper->count = 1;
 301
 302         if (pci_resource_len(pdev, 2)) {
 303                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 304                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 305                 aper->count++;
 306         }
 307
 308         if (pci_resource_len(pdev, 3)) {
 309                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 310                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 311                 aper->count++;
 312         }
 313
 314 #ifdef CONFIG_X86
 315         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 316 #endif
 317         if (nouveau_modeset != 2)
 318                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 319         kfree(aper);
 320
 321         ret = nvkm_device_create(pdev, NVKM_BUS_PCI,
 322                                  nouveau_pci_name(pdev), pci_name(pdev),
 323                                  nouveau_config, nouveau_debug, &device);
 324         if (ret)
 325                 return ret;
 326
 327         pci_set_master(pdev);
 328
 329         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 330         if (ret) {
 331                 nvkm_object_ref(NULL, (struct nvkm_object **)&device);
 332                 return ret;
 333         }
 334
 335         return 0;
 336 }
 337
 338 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 339
 340 static void
 341 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 342 {
 343         struct pci_dev *pdev = drm->dev->pdev;
 344
 345         if (!pdev) {
 346                 DRM_INFO("not a PCI device; no HDMI\n");
 347                 drm->hdmi_device = NULL;
 348                 return;
 349         }
 350
 351         /* subfunction one is a hdmi audio device? */
 352         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 353                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 354
 355         if (!drm->hdmi_device) {
 356                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 357                 return;
 358         }
 359
 360         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 361                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 362                 pci_dev_put(drm->hdmi_device);
 363                 drm->hdmi_device = NULL;
 364                 return;
 365         }
 366 }
 367
 368 static int
 369 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 370 {
 371         struct pci_dev *pdev = dev->pdev;
 372         struct nouveau_drm *drm;
 373         int ret;
 374
 375         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
 376                                  (void **)&drm);
 377         if (ret)
 378                 return ret;
 379
 380         dev->dev_private = drm;
 381         drm->dev = dev;
 382         nvxx_client(&drm->client.base)->debug =
 383                 nvkm_dbgopt(nouveau_debug, "DRM");
 384
 385         INIT_LIST_HEAD(&drm->clients);
 386         spin_lock_init(&drm->tile.lock);
 387
 388         nouveau_get_hdmi_dev(drm);
 389
 390         /* make sure AGP controller is in a consistent state before we
 391          * (possibly) execute vbios init tables (see nouveau_agp.h)
 392          */
 393         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
 394                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
 395                                     NV_DEVICE_V0_DISABLE_MMIO;
 396                 /* dummy device object, doesn't init anything, but allows
 397                  * agp code access to registers
 398                  */
 399                 ret = nvif_device_init(&drm->client.base.base, NULL,
 400                                        NVDRM_DEVICE, NV_DEVICE,
 401                                        &(struct nv_device_v0) {
 402                                                 .device = ~0,
 403                                                 .disable = ~enables,
 404                                                 .debug0 = ~0,
 405                                        }, sizeof(struct nv_device_v0),
 406                                        &drm->device);
 407                 if (ret)
 408                         goto fail_device;
 409
 410                 nouveau_agp_reset(drm);
 411                 nvif_device_fini(&drm->device);
 412         }
 413
 414         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
 415                                NV_DEVICE,
 416                                &(struct nv_device_v0) {
 417                                         .device = ~0,
 418                                         .disable = 0,
 419                                         .debug0 = 0,
 420                                }, sizeof(struct nv_device_v0),
 421                                &drm->device);
 422         if (ret)
 423                 goto fail_device;
 424
 425         dev->irq_enabled = true;
 426
 427         /* workaround an odd issue on nvc1 by disabling the device's
 428          * nosnoop capability.  hopefully won't cause issues until a
 429          * better fix is found - assuming there is one...
 430          */
 431         if (drm->device.info.chipset == 0xc1)
 432                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
 433
 434         nouveau_vga_init(drm);
 435         nouveau_agp_init(drm);
 436
 437         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 438                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 439                                   0x1000, &drm->client.vm);
 440                 if (ret)
 441                         goto fail_device;
 442
 443                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 444         }
 445
 446         ret = nouveau_ttm_init(drm);
 447         if (ret)
 448                 goto fail_ttm;
 449
 450         ret = nouveau_bios_init(dev);
 451         if (ret)
 452                 goto fail_bios;
 453
 454         ret = nouveau_display_create(dev);
 455         if (ret)
 456                 goto fail_dispctor;
 457
 458         if (dev->mode_config.num_crtc) {
 459                 ret = nouveau_display_init(dev);
 460                 if (ret)
 461                         goto fail_dispinit;
 462         }
 463
 464         nouveau_sysfs_init(dev);
 465         nouveau_hwmon_init(dev);
 466         nouveau_accel_init(drm);
 467         nouveau_fbcon_init(dev);
 468
 469         if (nouveau_runtime_pm != 0) {
 470                 pm_runtime_use_autosuspend(dev->dev);
 471                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 472                 pm_runtime_set_active(dev->dev);
 473                 pm_runtime_allow(dev->dev);
 474                 pm_runtime_mark_last_busy(dev->dev);
 475                 pm_runtime_put(dev->dev);
 476         }
 477         return 0;
 478
 479 fail_dispinit:
 480         nouveau_display_destroy(dev);
 481 fail_dispctor:
 482         nouveau_bios_takedown(dev);
 483 fail_bios:
 484         nouveau_ttm_fini(drm);
 485 fail_ttm:
 486         nouveau_agp_fini(drm);
 487         nouveau_vga_fini(drm);
 488 fail_device:
 489         nvif_device_fini(&drm->device);
 490         nouveau_cli_destroy(&drm->client);
 491         return ret;
 492 }
 493
 494 static int
 495 nouveau_drm_unload(struct drm_device *dev)
 496 {
 497         struct nouveau_drm *drm = nouveau_drm(dev);
 498
 499         pm_runtime_get_sync(dev->dev);
 500         nouveau_fbcon_fini(dev);
 501         nouveau_accel_fini(drm);
 502         nouveau_hwmon_fini(dev);
 503         nouveau_sysfs_fini(dev);
 504
 505         if (dev->mode_config.num_crtc)
 506                 nouveau_display_fini(dev);
 507         nouveau_display_destroy(dev);
 508
 509         nouveau_bios_takedown(dev);
 510
 511         nouveau_ttm_fini(drm);
 512         nouveau_agp_fini(drm);
 513         nouveau_vga_fini(drm);
 514
 515         nvif_device_fini(&drm->device);
 516         if (drm->hdmi_device)
 517                 pci_dev_put(drm->hdmi_device);
 518         nouveau_cli_destroy(&drm->client);
 519         return 0;
 520 }
 521
 522 void
 523 nouveau_drm_device_remove(struct drm_device *dev)
 524 {
 525         struct nouveau_drm *drm = nouveau_drm(dev);
 526         struct nvkm_client *client;
 527         struct nvkm_object *device;
 528
 529         dev->irq_enabled = false;
 530         client = nvxx_client(&drm->client.base);
 531         device = client->device;
 532         drm_put_dev(dev);
 533
 534         nvkm_object_ref(NULL, &device);
 535         nvkm_object_debug();
 536 }
 537
 538 static void
 539 nouveau_drm_remove(struct pci_dev *pdev)
 540 {
 541         struct drm_device *dev = pci_get_drvdata(pdev);
 542
 543         nouveau_drm_device_remove(dev);
 544 }
 545
 546 static int
 547 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 548 {
 549         struct nouveau_drm *drm = nouveau_drm(dev);
 550         struct nouveau_cli *cli;
 551         int ret;
 552
 553         if (dev->mode_config.num_crtc) {
 554                 NV_INFO(drm, "suspending console...\n");
 555                 nouveau_fbcon_set_suspend(dev, 1);
 556                 NV_INFO(drm, "suspending display...\n");
 557                 ret = nouveau_display_suspend(dev, runtime);
 558                 if (ret)
 559                         return ret;
 560         }
 561
 562         NV_INFO(drm, "evicting buffers...\n");
 563         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 564
 565         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 566         if (drm->cechan) {
 567                 ret = nouveau_channel_idle(drm->cechan);
 568                 if (ret)
 569                         goto fail_display;
 570         }
 571
 572         if (drm->channel) {
 573                 ret = nouveau_channel_idle(drm->channel);
 574                 if (ret)
 575                         goto fail_display;
 576         }
 577
 578         NV_INFO(drm, "suspending client object trees...\n");
 579         if (drm->fence && nouveau_fence(drm)->suspend) {
 580                 if (!nouveau_fence(drm)->suspend(drm)) {
 581                         ret = -ENOMEM;
 582                         goto fail_display;
 583                 }
 584         }
 585
 586         list_for_each_entry(cli, &drm->clients, head) {
 587                 ret = nvif_client_suspend(&cli->base);
 588                 if (ret)
 589                         goto fail_client;
 590         }
 591
 592         NV_INFO(drm, "suspending kernel object tree...\n");
 593         ret = nvif_client_suspend(&drm->client.base);
 594         if (ret)
 595                 goto fail_client;
 596
 597         nouveau_agp_fini(drm);
 598         return 0;
 599
 600 fail_client:
 601         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 602                 nvif_client_resume(&cli->base);
 603         }
 604
 605         if (drm->fence && nouveau_fence(drm)->resume)
 606                 nouveau_fence(drm)->resume(drm);
 607
 608 fail_display:
 609         if (dev->mode_config.num_crtc) {
 610                 NV_INFO(drm, "resuming display...\n");
 611                 nouveau_display_resume(dev, runtime);
 612         }
 613         return ret;
 614 }
 615
 616 static int
 617 nouveau_do_resume(struct drm_device *dev, bool runtime)
 618 {
 619         struct nouveau_drm *drm = nouveau_drm(dev);
 620         struct nouveau_cli *cli;
 621
 622         NV_INFO(drm, "re-enabling device...\n");
 623
 624         nouveau_agp_reset(drm);
 625
 626         NV_INFO(drm, "resuming kernel object tree...\n");
 627         nvif_client_resume(&drm->client.base);
 628         nouveau_agp_init(drm);
 629
 630         NV_INFO(drm, "resuming client object trees...\n");
 631         if (drm->fence && nouveau_fence(drm)->resume)
 632                 nouveau_fence(drm)->resume(drm);
 633
 634         list_for_each_entry(cli, &drm->clients, head) {
 635                 nvif_client_resume(&cli->base);
 636         }
 637
 638         nouveau_run_vbios_init(dev);
 639
 640         if (dev->mode_config.num_crtc) {
 641                 NV_INFO(drm, "resuming display...\n");
 642                 nouveau_display_resume(dev, runtime);
 643                 NV_INFO(drm, "resuming console...\n");
 644                 nouveau_fbcon_set_suspend(dev, 0);
 645         }
 646
 647         return 0;
 648 }
 649
 650 int
 651 nouveau_pmops_suspend(struct device *dev)
 652 {
 653         struct pci_dev *pdev = to_pci_dev(dev);
 654         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 655         int ret;
 656
 657         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 658             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 659                 return 0;
 660
 661         ret = nouveau_do_suspend(drm_dev, false);
 662         if (ret)
 663                 return ret;
 664
 665         pci_save_state(pdev);
 666         pci_disable_device(pdev);
 667         pci_set_power_state(pdev, PCI_D3hot);
 668         return 0;
 669 }
 670
 671 int
 672 nouveau_pmops_resume(struct device *dev)
 673 {
 674         struct pci_dev *pdev = to_pci_dev(dev);
 675         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 676         int ret;
 677
 678         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 679             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 680                 return 0;
 681
 682         pci_set_power_state(pdev, PCI_D0);
 683         pci_restore_state(pdev);
 684         ret = pci_enable_device(pdev);
 685         if (ret)
 686                 return ret;
 687         pci_set_master(pdev);
 688
 689         return nouveau_do_resume(drm_dev, false);
 690 }
 691
 692 static int
 693 nouveau_pmops_freeze(struct device *dev)
 694 {
 695         struct pci_dev *pdev = to_pci_dev(dev);
 696         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 697         return nouveau_do_suspend(drm_dev, false);
 698 }
 699
 700 static int
 701 nouveau_pmops_thaw(struct device *dev)
 702 {
 703         struct pci_dev *pdev = to_pci_dev(dev);
 704         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 705         return nouveau_do_resume(drm_dev, false);
 706 }
 707
 708 static int
 709 nouveau_pmops_runtime_suspend(struct device *dev)
 710 {
 711         struct pci_dev *pdev = to_pci_dev(dev);
 712         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 713         int ret;
 714
 715         if (nouveau_runtime_pm == 0) {
 716                 pm_runtime_forbid(dev);
 717                 return -EBUSY;
 718         }
 719
 720         /* are we optimus enabled? */
 721         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 722                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 723                 pm_runtime_forbid(dev);
 724                 return -EBUSY;
 725         }
 726
 727         nv_debug_level(SILENT);
 728         drm_kms_helper_poll_disable(drm_dev);
 729         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 730         nouveau_switcheroo_optimus_dsm();
 731         ret = nouveau_do_suspend(drm_dev, true);
 732         pci_save_state(pdev);
 733         pci_disable_device(pdev);
 734         pci_ignore_hotplug(pdev);
 735         pci_set_power_state(pdev, PCI_D3cold);
 736         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 737         return ret;
 738 }
 739
 740 static int
 741 nouveau_pmops_runtime_resume(struct device *dev)
 742 {
 743         struct pci_dev *pdev = to_pci_dev(dev);
 744         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 745         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 746         int ret;
 747
 748         if (nouveau_runtime_pm == 0)
 749                 return -EINVAL;
 750
 751         pci_set_power_state(pdev, PCI_D0);
 752         pci_restore_state(pdev);
 753         ret = pci_enable_device(pdev);
 754         if (ret)
 755                 return ret;
 756         pci_set_master(pdev);
 757
 758         ret = nouveau_do_resume(drm_dev, true);
 759         drm_kms_helper_poll_enable(drm_dev);
 760         /* do magic */
 761         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
 762         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 763         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 764         nv_debug_level(NORMAL);
 765         return ret;
 766 }
 767
 768 static int
 769 nouveau_pmops_runtime_idle(struct device *dev)
 770 {
 771         struct pci_dev *pdev = to_pci_dev(dev);
 772         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 773         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 774         struct drm_crtc *crtc;
 775
 776         if (nouveau_runtime_pm == 0) {
 777                 pm_runtime_forbid(dev);
 778                 return -EBUSY;
 779         }
 780
 781         /* are we optimus enabled? */
 782         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 783                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 784                 pm_runtime_forbid(dev);
 785                 return -EBUSY;
 786         }
 787
 788         /* if we have a hdmi audio device - make sure it has a driver loaded */
 789         if (drm->hdmi_device) {
 790                 if (!drm->hdmi_device->driver) {
 791                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 792                         pm_runtime_mark_last_busy(dev);
 793                         return -EBUSY;
 794                 }
 795         }
 796
 797         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 798                 if (crtc->enabled) {
 799                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 800                         return -EBUSY;
 801                 }
 802         }
 803         pm_runtime_mark_last_busy(dev);
 804         pm_runtime_autosuspend(dev);
 805         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 806         return 1;
 807 }
 808
 809 static int
 810 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 811 {
 812         struct nouveau_drm *drm = nouveau_drm(dev);
 813         struct nouveau_cli *cli;
 814         char name[32], tmpname[TASK_COMM_LEN];
 815         int ret;
 816
 817         /* need to bring up power immediately if opening device */
 818         ret = pm_runtime_get_sync(dev->dev);
 819         if (ret < 0 && ret != -EACCES)
 820                 return ret;
 821
 822         get_task_comm(tmpname, current);
 823         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 824
 825         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
 826                         (void **)&cli);
 827
 828         if (ret)
 829                 goto out_suspend;
 830
 831         cli->base.super = false;
 832
 833         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 834                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 835                                   0x1000, &cli->vm);
 836                 if (ret) {
 837                         nouveau_cli_destroy(cli);
 838                         goto out_suspend;
 839                 }
 840
 841                 nvxx_client(&cli->base)->vm = cli->vm;
 842         }
 843
 844         fpriv->driver_priv = cli;
 845
 846         mutex_lock(&drm->client.mutex);
 847         list_add(&cli->head, &drm->clients);
 848         mutex_unlock(&drm->client.mutex);
 849
 850 out_suspend:
 851         pm_runtime_mark_last_busy(dev->dev);
 852         pm_runtime_put_autosuspend(dev->dev);
 853
 854         return ret;
 855 }
 856
 857 static void
 858 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 859 {
 860         struct nouveau_cli *cli = nouveau_cli(fpriv);
 861         struct nouveau_drm *drm = nouveau_drm(dev);
 862
 863         pm_runtime_get_sync(dev->dev);
 864
 865         if (cli->abi16)
 866                 nouveau_abi16_fini(cli->abi16);
 867
 868         mutex_lock(&drm->client.mutex);
 869         list_del(&cli->head);
 870         mutex_unlock(&drm->client.mutex);
 871
 872 }
 873
 874 static void
 875 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 876 {
 877         struct nouveau_cli *cli = nouveau_cli(fpriv);
 878         nouveau_cli_destroy(cli);
 879         pm_runtime_mark_last_busy(dev->dev);
 880         pm_runtime_put_autosuspend(dev->dev);
 881 }
 882
 883 static const struct drm_ioctl_desc
 884 nouveau_ioctls[] = {
 885         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 886         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 887         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 888         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 889         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 890         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 891         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 892         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 893         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 894         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 895         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 896         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 897 };
 898
 899 long
 900 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 901 {
 902         struct drm_file *filp = file->private_data;
 903         struct drm_device *dev = filp->minor->dev;
 904         long ret;
 905
 906         ret = pm_runtime_get_sync(dev->dev);
 907         if (ret < 0 && ret != -EACCES)
 908                 return ret;
 909
 910         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 911         case DRM_NOUVEAU_NVIF:
 912                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 913                 break;
 914         default:
 915                 ret = drm_ioctl(file, cmd, arg);
 916                 break;
 917         }
 918
 919         pm_runtime_mark_last_busy(dev->dev);
 920         pm_runtime_put_autosuspend(dev->dev);
 921         return ret;
 922 }
 923
 924 static const struct file_operations
 925 nouveau_driver_fops = {
 926         .owner = THIS_MODULE,
 927         .open = drm_open,
 928         .release = drm_release,
 929         .unlocked_ioctl = nouveau_drm_ioctl,
 930         .mmap = nouveau_ttm_mmap,
 931         .poll = drm_poll,
 932         .read = drm_read,
 933 #if defined(CONFIG_COMPAT)
 934         .compat_ioctl = nouveau_compat_ioctl,
 935 #endif
 936         .llseek = noop_llseek,
 937 };
 938
 939 static struct drm_driver
 940 driver_stub = {
 941         .driver_features =
 942                 DRIVER_USE_AGP |
 943                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
 944
 945         .load = nouveau_drm_load,
 946         .unload = nouveau_drm_unload,
 947         .open = nouveau_drm_open,
 948         .preclose = nouveau_drm_preclose,
 949         .postclose = nouveau_drm_postclose,
 950         .lastclose = nouveau_vga_lastclose,
 951
 952 #if defined(CONFIG_DEBUG_FS)
 953         .debugfs_init = nouveau_debugfs_init,
 954         .debugfs_cleanup = nouveau_debugfs_takedown,
 955 #endif
 956
 957         .get_vblank_counter = drm_vblank_count,
 958         .enable_vblank = nouveau_display_vblank_enable,
 959         .disable_vblank = nouveau_display_vblank_disable,
 960         .get_scanout_position = nouveau_display_scanoutpos,
 961         .get_vblank_timestamp = nouveau_display_vblstamp,
 962
 963         .ioctls = nouveau_ioctls,
 964         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 965         .fops = &nouveau_driver_fops,
 966
 967         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 968         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 969         .gem_prime_export = drm_gem_prime_export,
 970         .gem_prime_import = drm_gem_prime_import,
 971         .gem_prime_pin = nouveau_gem_prime_pin,
 972         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 973         .gem_prime_unpin = nouveau_gem_prime_unpin,
 974         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 975         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 976         .gem_prime_vmap = nouveau_gem_prime_vmap,
 977         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 978
 979         .gem_free_object = nouveau_gem_object_del,
 980         .gem_open_object = nouveau_gem_object_open,
 981         .gem_close_object = nouveau_gem_object_close,
 982
 983         .dumb_create = nouveau_display_dumb_create,
 984         .dumb_map_offset = nouveau_display_dumb_map_offset,
 985         .dumb_destroy = drm_gem_dumb_destroy,
 986
 987         .name = DRIVER_NAME,
 988         .desc = DRIVER_DESC,
 989 #ifdef GIT_REVISION
 990         .date = GIT_REVISION,
 991 #else
 992         .date = DRIVER_DATE,
 993 #endif
 994         .major = DRIVER_MAJOR,
 995         .minor = DRIVER_MINOR,
 996         .patchlevel = DRIVER_PATCHLEVEL,
 997 };
 998
 999 static struct pci_device_id
1000 nouveau_drm_pci_table[] = {
1001         {
1002                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1003                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1004                 .class_mask  = 0xff << 16,
1005         },
1006         {
1007                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1008                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1009                 .class_mask  = 0xff << 16,
1010         },
1011         {}
1012 };
1013
1014 static void nouveau_display_options(void)
1015 {
1016         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1017
1018         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1019         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1020         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1021         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1022         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1023         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1024         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1025         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1026         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1027         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1028         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1029 }
1030
1031 static const struct dev_pm_ops nouveau_pm_ops = {
1032         .suspend = nouveau_pmops_suspend,
1033         .resume = nouveau_pmops_resume,
1034         .freeze = nouveau_pmops_freeze,
1035         .thaw = nouveau_pmops_thaw,
1036         .poweroff = nouveau_pmops_freeze,
1037         .restore = nouveau_pmops_resume,
1038         .runtime_suspend = nouveau_pmops_runtime_suspend,
1039         .runtime_resume = nouveau_pmops_runtime_resume,
1040         .runtime_idle = nouveau_pmops_runtime_idle,
1041 };
1042
1043 static struct pci_driver
1044 nouveau_drm_pci_driver = {
1045         .name = "nouveau",
1046         .id_table = nouveau_drm_pci_table,
1047         .probe = nouveau_drm_probe,
1048         .remove = nouveau_drm_remove,
1049         .driver.pm = &nouveau_pm_ops,
1050 };
1051
1052 struct drm_device *
1053 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1054                                 void **pobject)
1055 {
1056         struct drm_device *drm;
1057         int err;
1058
1059         err = nvkm_device_create_(pdev, NVKM_BUS_PLATFORM,
1060                                   nouveau_platform_name(pdev),
1061                                   dev_name(&pdev->dev), nouveau_config,
1062                                   nouveau_debug, size, pobject);
1063         if (err)
1064                 return ERR_PTR(err);
1065
1066         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1067         if (!drm) {
1068                 err = -ENOMEM;
1069                 goto err_free;
1070         }
1071
1072         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1073         if (err < 0)
1074                 goto err_free;
1075
1076         drm->platformdev = pdev;
1077         platform_set_drvdata(pdev, drm);
1078
1079         return drm;
1080
1081 err_free:
1082         nvkm_object_ref(NULL, (struct nvkm_object **)pobject);
1083
1084         return ERR_PTR(err);
1085 }
1086
1087 static int __init
1088 nouveau_drm_init(void)
1089 {
1090         driver_pci = driver_stub;
1091         driver_pci.set_busid = drm_pci_set_busid;
1092         driver_platform = driver_stub;
1093         driver_platform.set_busid = drm_platform_set_busid;
1094
1095         nouveau_display_options();
1096
1097         if (nouveau_modeset == -1) {
1098 #ifdef CONFIG_VGA_CONSOLE
1099                 if (vgacon_text_force())
1100                         nouveau_modeset = 0;
1101 #endif
1102         }
1103
1104         if (!nouveau_modeset)
1105                 return 0;
1106
1107 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1108         platform_driver_register(&nouveau_platform_driver);
1109 #endif
1110
1111         nouveau_register_dsm_handler();
1112         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1113 }
1114
1115 static void __exit
1116 nouveau_drm_exit(void)
1117 {
1118         if (!nouveau_modeset)
1119                 return;
1120
1121         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1122         nouveau_unregister_dsm_handler();
1123
1124 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1125         platform_driver_unregister(&nouveau_platform_driver);
1126 #endif
1127 }
1128
1129 module_init(nouveau_drm_init);
1130 module_exit(nouveau_drm_exit);
1131
1132 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1133 MODULE_AUTHOR(DRIVER_AUTHOR);
1134 MODULE_DESCRIPTION(DRIVER_DESC);
1135 MODULE_LICENSE("GPL and additional rights");