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 <drm/drmP.h>
  33 #include <drm/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/driver.h>
  41
  42 #include <nvif/class.h>
  43 #include <nvif/cl0002.h>
  44 #include <nvif/cla06f.h>
  45 #include <nvif/if0004.h>
  46
  47 #include "nouveau_drv.h"
  48 #include "nouveau_dma.h"
  49 #include "nouveau_ttm.h"
  50 #include "nouveau_gem.h"
  51 #include "nouveau_vga.h"
  52 #include "nouveau_led.h"
  53 #include "nouveau_hwmon.h"
  54 #include "nouveau_acpi.h"
  55 #include "nouveau_bios.h"
  56 #include "nouveau_ioctl.h"
  57 #include "nouveau_abi16.h"
  58 #include "nouveau_fbcon.h"
  59 #include "nouveau_fence.h"
  60 #include "nouveau_debugfs.h"
  61 #include "nouveau_usif.h"
  62 #include "nouveau_connector.h"
  63 #include "nouveau_platform.h"
  64
  65 MODULE_PARM_DESC(config, "option string to pass to driver core");
  66 static char *nouveau_config;
  67 module_param_named(config, nouveau_config, charp, 0400);
  68
  69 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  70 static char *nouveau_debug;
  71 module_param_named(debug, nouveau_debug, charp, 0400);
  72
  73 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  74 static int nouveau_noaccel = 0;
  75 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  76
  77 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  78                           "0 = disabled, 1 = enabled, 2 = headless)");
  79 int nouveau_modeset = -1;
  80 module_param_named(modeset, nouveau_modeset, int, 0400);
  81
  82 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)");
  83 static int nouveau_atomic = 0;
  84 module_param_named(atomic, nouveau_atomic, int, 0400);
  85
  86 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  87 static int nouveau_runtime_pm = -1;
  88 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  89
  90 static struct drm_driver driver_stub;
  91 static struct drm_driver driver_pci;
  92 static struct drm_driver driver_platform;
  93
  94 static u64
  95 nouveau_pci_name(struct pci_dev *pdev)
  96 {
  97         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  98         name |= pdev->bus->number << 16;
  99         name |= PCI_SLOT(pdev->devfn) << 8;
 100         return name | PCI_FUNC(pdev->devfn);
 101 }
 102
 103 static u64
 104 nouveau_platform_name(struct platform_device *platformdev)
 105 {
 106         return platformdev->id;
 107 }
 108
 109 static u64
 110 nouveau_name(struct drm_device *dev)
 111 {
 112         if (dev->pdev)
 113                 return nouveau_pci_name(dev->pdev);
 114         else
 115                 return nouveau_platform_name(to_platform_device(dev->dev));
 116 }
 117
 118 static void
 119 nouveau_cli_fini(struct nouveau_cli *cli)
 120 {
 121         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 122         usif_client_fini(cli);
 123         nvif_device_fini(&cli->device);
 124         nvif_client_fini(&cli->base);
 125 }
 126
 127 static int
 128 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 129                  struct nouveau_cli *cli)
 130 {
 131         u64 device = nouveau_name(drm->dev);
 132         int ret;
 133
 134         snprintf(cli->name, sizeof(cli->name), "%s", sname);
 135         cli->dev = drm->dev;
 136         mutex_init(&cli->mutex);
 137         usif_client_init(cli);
 138
 139         if (cli == &drm->client) {
 140                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 141                                        cli->name, device, &cli->base);
 142         } else {
 143                 ret = nvif_client_init(&drm->client.base, cli->name, device,
 144                                        &cli->base);
 145         }
 146         if (ret) {
 147                 NV_ERROR(drm, "Client allocation failed: %d\n", ret);
 148                 goto done;
 149         }
 150
 151         ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 152                                &(struct nv_device_v0) {
 153                                         .device = ~0,
 154                                }, sizeof(struct nv_device_v0),
 155                                &cli->device);
 156         if (ret) {
 157                 NV_ERROR(drm, "Device allocation failed: %d\n", ret);
 158                 goto done;
 159         }
 160
 161 done:
 162         if (ret)
 163                 nouveau_cli_fini(cli);
 164         return ret;
 165 }
 166
 167 static void
 168 nouveau_accel_fini(struct nouveau_drm *drm)
 169 {
 170         nouveau_channel_idle(drm->channel);
 171         nvif_object_fini(&drm->ntfy);
 172         nvkm_gpuobj_del(&drm->notify);
 173         nvif_notify_fini(&drm->flip);
 174         nvif_object_fini(&drm->nvsw);
 175         nouveau_channel_del(&drm->channel);
 176
 177         nouveau_channel_idle(drm->cechan);
 178         nvif_object_fini(&drm->ttm.copy);
 179         nouveau_channel_del(&drm->cechan);
 180
 181         if (drm->fence)
 182                 nouveau_fence(drm)->dtor(drm);
 183 }
 184
 185 static void
 186 nouveau_accel_init(struct nouveau_drm *drm)
 187 {
 188         struct nvif_device *device = &drm->client.device;
 189         struct nvif_sclass *sclass;
 190         u32 arg0, arg1;
 191         int ret, i, n;
 192
 193         if (nouveau_noaccel)
 194                 return;
 195
 196         /* initialise synchronisation routines */
 197         /*XXX: this is crap, but the fence/channel stuff is a little
 198          *     backwards in some places.  this will be fixed.
 199          */
 200         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 201         if (ret < 0)
 202                 return;
 203
 204         for (ret = -ENOSYS, i = 0; i < n; i++) {
 205                 switch (sclass[i].oclass) {
 206                 case NV03_CHANNEL_DMA:
 207                         ret = nv04_fence_create(drm);
 208                         break;
 209                 case NV10_CHANNEL_DMA:
 210                         ret = nv10_fence_create(drm);
 211                         break;
 212                 case NV17_CHANNEL_DMA:
 213                 case NV40_CHANNEL_DMA:
 214                         ret = nv17_fence_create(drm);
 215                         break;
 216                 case NV50_CHANNEL_GPFIFO:
 217                         ret = nv50_fence_create(drm);
 218                         break;
 219                 case G82_CHANNEL_GPFIFO:
 220                         ret = nv84_fence_create(drm);
 221                         break;
 222                 case FERMI_CHANNEL_GPFIFO:
 223                 case KEPLER_CHANNEL_GPFIFO_A:
 224                 case KEPLER_CHANNEL_GPFIFO_B:
 225                 case MAXWELL_CHANNEL_GPFIFO_A:
 226                 case PASCAL_CHANNEL_GPFIFO_A:
 227                         ret = nvc0_fence_create(drm);
 228                         break;
 229                 default:
 230                         break;
 231                 }
 232         }
 233
 234         nvif_object_sclass_put(&sclass);
 235         if (ret) {
 236                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 237                 nouveau_accel_fini(drm);
 238                 return;
 239         }
 240
 241         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 242                 ret = nouveau_channel_new(drm, &drm->client.device,
 243                                           NVA06F_V0_ENGINE_CE0 |
 244                                           NVA06F_V0_ENGINE_CE1,
 245                                           0, &drm->cechan);
 246                 if (ret)
 247                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 248
 249                 arg0 = NVA06F_V0_ENGINE_GR;
 250                 arg1 = 1;
 251         } else
 252         if (device->info.chipset >= 0xa3 &&
 253             device->info.chipset != 0xaa &&
 254             device->info.chipset != 0xac) {
 255                 ret = nouveau_channel_new(drm, &drm->client.device,
 256                                           NvDmaFB, NvDmaTT, &drm->cechan);
 257                 if (ret)
 258                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 259
 260                 arg0 = NvDmaFB;
 261                 arg1 = NvDmaTT;
 262         } else {
 263                 arg0 = NvDmaFB;
 264                 arg1 = NvDmaTT;
 265         }
 266
 267         ret = nouveau_channel_new(drm, &drm->client.device,
 268                                   arg0, arg1, &drm->channel);
 269         if (ret) {
 270                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 271                 nouveau_accel_fini(drm);
 272                 return;
 273         }
 274
 275         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 276                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 277         if (ret == 0) {
 278                 ret = RING_SPACE(drm->channel, 2);
 279                 if (ret == 0) {
 280                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 281                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 282                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 283                         } else
 284                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 285                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 286                                 OUT_RING  (drm->channel, 0x001f0000);
 287                         }
 288                 }
 289
 290                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 291                                        false, NV04_NVSW_NTFY_UEVENT,
 292                                        NULL, 0, 0, &drm->flip);
 293                 if (ret == 0)
 294                         ret = nvif_notify_get(&drm->flip);
 295                 if (ret) {
 296                         nouveau_accel_fini(drm);
 297                         return;
 298                 }
 299         }
 300
 301         if (ret) {
 302                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 303                 nouveau_accel_fini(drm);
 304                 return;
 305         }
 306
 307         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 308                 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0,
 309                                       false, NULL, &drm->notify);
 310                 if (ret) {
 311                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 312                         nouveau_accel_fini(drm);
 313                         return;
 314                 }
 315
 316                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 317                                        NV_DMA_IN_MEMORY,
 318                                        &(struct nv_dma_v0) {
 319                                                 .target = NV_DMA_V0_TARGET_VRAM,
 320                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 321                                                 .start = drm->notify->addr,
 322                                                 .limit = drm->notify->addr + 31
 323                                        }, sizeof(struct nv_dma_v0),
 324                                        &drm->ntfy);
 325                 if (ret) {
 326                         nouveau_accel_fini(drm);
 327                         return;
 328                 }
 329         }
 330
 331
 332         nouveau_bo_move_init(drm);
 333 }
 334
 335 static int nouveau_drm_probe(struct pci_dev *pdev,
 336                              const struct pci_device_id *pent)
 337 {
 338         struct nvkm_device *device;
 339         struct apertures_struct *aper;
 340         bool boot = false;
 341         int ret;
 342
 343         if (vga_switcheroo_client_probe_defer(pdev))
 344                 return -EPROBE_DEFER;
 345
 346         /* We need to check that the chipset is supported before booting
 347          * fbdev off the hardware, as there's no way to put it back.
 348          */
 349         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 350         if (ret)
 351                 return ret;
 352
 353         nvkm_device_del(&device);
 354
 355         /* Remove conflicting drivers (vesafb, efifb etc). */
 356         aper = alloc_apertures(3);
 357         if (!aper)
 358                 return -ENOMEM;
 359
 360         aper->ranges[0].base = pci_resource_start(pdev, 1);
 361         aper->ranges[0].size = pci_resource_len(pdev, 1);
 362         aper->count = 1;
 363
 364         if (pci_resource_len(pdev, 2)) {
 365                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 366                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 367                 aper->count++;
 368         }
 369
 370         if (pci_resource_len(pdev, 3)) {
 371                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 372                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 373                 aper->count++;
 374         }
 375
 376 #ifdef CONFIG_X86
 377         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 378 #endif
 379         if (nouveau_modeset != 2)
 380                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 381         kfree(aper);
 382
 383         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 384                                   true, true, ~0ULL, &device);
 385         if (ret)
 386                 return ret;
 387
 388         pci_set_master(pdev);
 389
 390         if (nouveau_atomic)
 391                 driver_pci.driver_features |= DRIVER_ATOMIC;
 392
 393         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 394         if (ret) {
 395                 nvkm_device_del(&device);
 396                 return ret;
 397         }
 398
 399         return 0;
 400 }
 401
 402 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 403
 404 static void
 405 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 406 {
 407         struct pci_dev *pdev = drm->dev->pdev;
 408
 409         if (!pdev) {
 410                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
 411                 drm->hdmi_device = NULL;
 412                 return;
 413         }
 414
 415         /* subfunction one is a hdmi audio device? */
 416         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 417                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 418
 419         if (!drm->hdmi_device) {
 420                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 421                 return;
 422         }
 423
 424         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 425                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 426                 pci_dev_put(drm->hdmi_device);
 427                 drm->hdmi_device = NULL;
 428                 return;
 429         }
 430 }
 431
 432 static int
 433 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 434 {
 435         struct nouveau_drm *drm;
 436         int ret;
 437
 438         if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
 439                 return -ENOMEM;
 440         dev->dev_private = drm;
 441         drm->dev = dev;
 442
 443         ret = nouveau_cli_init(drm, "DRM", &drm->client);
 444         if (ret)
 445                 return ret;
 446
 447         dev->irq_enabled = true;
 448
 449         nvxx_client(&drm->client.base)->debug =
 450                 nvkm_dbgopt(nouveau_debug, "DRM");
 451
 452         INIT_LIST_HEAD(&drm->clients);
 453         spin_lock_init(&drm->tile.lock);
 454
 455         nouveau_get_hdmi_dev(drm);
 456
 457         /* workaround an odd issue on nvc1 by disabling the device's
 458          * nosnoop capability.  hopefully won't cause issues until a
 459          * better fix is found - assuming there is one...
 460          */
 461         if (drm->client.device.info.chipset == 0xc1)
 462                 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
 463
 464         nouveau_vga_init(drm);
 465
 466         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 467                 if (!nvxx_device(&drm->client.device)->mmu) {
 468                         ret = -ENOSYS;
 469                         goto fail_device;
 470                 }
 471
 472                 ret = nvkm_vm_new(nvxx_device(&drm->client.device),
 473                                   0, (1ULL << 40), 0x1000, NULL,
 474                                   &drm->client.vm);
 475                 if (ret)
 476                         goto fail_device;
 477
 478                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 479         }
 480
 481         ret = nouveau_ttm_init(drm);
 482         if (ret)
 483                 goto fail_ttm;
 484
 485         ret = nouveau_bios_init(dev);
 486         if (ret)
 487                 goto fail_bios;
 488
 489         ret = nouveau_display_create(dev);
 490         if (ret)
 491                 goto fail_dispctor;
 492
 493         if (dev->mode_config.num_crtc) {
 494                 ret = nouveau_display_init(dev);
 495                 if (ret)
 496                         goto fail_dispinit;
 497         }
 498
 499         nouveau_debugfs_init(drm);
 500         nouveau_hwmon_init(dev);
 501         nouveau_accel_init(drm);
 502         nouveau_fbcon_init(dev);
 503         nouveau_led_init(dev);
 504
 505         if (nouveau_pmops_runtime()) {
 506                 pm_runtime_use_autosuspend(dev->dev);
 507                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 508                 pm_runtime_set_active(dev->dev);
 509                 pm_runtime_allow(dev->dev);
 510                 pm_runtime_mark_last_busy(dev->dev);
 511                 pm_runtime_put(dev->dev);
 512         } else {
 513                 /* enable polling for external displays */
 514                 drm_kms_helper_poll_enable(dev);
 515         }
 516         return 0;
 517
 518 fail_dispinit:
 519         nouveau_display_destroy(dev);
 520 fail_dispctor:
 521         nouveau_bios_takedown(dev);
 522 fail_bios:
 523         nouveau_ttm_fini(drm);
 524 fail_ttm:
 525         nouveau_vga_fini(drm);
 526 fail_device:
 527         nouveau_cli_fini(&drm->client);
 528         kfree(drm);
 529         return ret;
 530 }
 531
 532 static void
 533 nouveau_drm_unload(struct drm_device *dev)
 534 {
 535         struct nouveau_drm *drm = nouveau_drm(dev);
 536
 537         if (nouveau_pmops_runtime()) {
 538                 pm_runtime_get_sync(dev->dev);
 539                 pm_runtime_forbid(dev->dev);
 540         }
 541
 542         nouveau_led_fini(dev);
 543         nouveau_fbcon_fini(dev);
 544         nouveau_accel_fini(drm);
 545         nouveau_hwmon_fini(dev);
 546         nouveau_debugfs_fini(drm);
 547
 548         if (dev->mode_config.num_crtc)
 549                 nouveau_display_fini(dev, false, false);
 550         nouveau_display_destroy(dev);
 551
 552         nouveau_bios_takedown(dev);
 553
 554         nouveau_ttm_fini(drm);
 555         nouveau_vga_fini(drm);
 556
 557         if (drm->hdmi_device)
 558                 pci_dev_put(drm->hdmi_device);
 559         nouveau_cli_fini(&drm->client);
 560         kfree(drm);
 561 }
 562
 563 void
 564 nouveau_drm_device_remove(struct drm_device *dev)
 565 {
 566         struct nouveau_drm *drm = nouveau_drm(dev);
 567         struct nvkm_client *client;
 568         struct nvkm_device *device;
 569
 570         dev->irq_enabled = false;
 571         client = nvxx_client(&drm->client.base);
 572         device = nvkm_device_find(client->device);
 573         drm_put_dev(dev);
 574
 575         nvkm_device_del(&device);
 576 }
 577
 578 static void
 579 nouveau_drm_remove(struct pci_dev *pdev)
 580 {
 581         struct drm_device *dev = pci_get_drvdata(pdev);
 582
 583         nouveau_drm_device_remove(dev);
 584 }
 585
 586 static int
 587 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 588 {
 589         struct nouveau_drm *drm = nouveau_drm(dev);
 590         int ret;
 591
 592         nouveau_led_suspend(dev);
 593
 594         if (dev->mode_config.num_crtc) {
 595                 NV_DEBUG(drm, "suspending console...\n");
 596                 nouveau_fbcon_set_suspend(dev, 1);
 597                 NV_DEBUG(drm, "suspending display...\n");
 598                 ret = nouveau_display_suspend(dev, runtime);
 599                 if (ret)
 600                         return ret;
 601         }
 602
 603         NV_DEBUG(drm, "evicting buffers...\n");
 604         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 605
 606         NV_DEBUG(drm, "waiting for kernel channels to go idle...\n");
 607         if (drm->cechan) {
 608                 ret = nouveau_channel_idle(drm->cechan);
 609                 if (ret)
 610                         goto fail_display;
 611         }
 612
 613         if (drm->channel) {
 614                 ret = nouveau_channel_idle(drm->channel);
 615                 if (ret)
 616                         goto fail_display;
 617         }
 618
 619         NV_DEBUG(drm, "suspending fence...\n");
 620         if (drm->fence && nouveau_fence(drm)->suspend) {
 621                 if (!nouveau_fence(drm)->suspend(drm)) {
 622                         ret = -ENOMEM;
 623                         goto fail_display;
 624                 }
 625         }
 626
 627         NV_DEBUG(drm, "suspending object tree...\n");
 628         ret = nvif_client_suspend(&drm->client.base);
 629         if (ret)
 630                 goto fail_client;
 631
 632         return 0;
 633
 634 fail_client:
 635         if (drm->fence && nouveau_fence(drm)->resume)
 636                 nouveau_fence(drm)->resume(drm);
 637
 638 fail_display:
 639         if (dev->mode_config.num_crtc) {
 640                 NV_DEBUG(drm, "resuming display...\n");
 641                 nouveau_display_resume(dev, runtime);
 642         }
 643         return ret;
 644 }
 645
 646 static int
 647 nouveau_do_resume(struct drm_device *dev, bool runtime)
 648 {
 649         struct nouveau_drm *drm = nouveau_drm(dev);
 650
 651         NV_DEBUG(drm, "resuming object tree...\n");
 652         nvif_client_resume(&drm->client.base);
 653
 654         NV_DEBUG(drm, "resuming fence...\n");
 655         if (drm->fence && nouveau_fence(drm)->resume)
 656                 nouveau_fence(drm)->resume(drm);
 657
 658         nouveau_run_vbios_init(dev);
 659
 660         if (dev->mode_config.num_crtc) {
 661                 NV_DEBUG(drm, "resuming display...\n");
 662                 nouveau_display_resume(dev, runtime);
 663                 NV_DEBUG(drm, "resuming console...\n");
 664                 nouveau_fbcon_set_suspend(dev, 0);
 665         }
 666
 667         nouveau_led_resume(dev);
 668
 669         return 0;
 670 }
 671
 672 int
 673 nouveau_pmops_suspend(struct device *dev)
 674 {
 675         struct pci_dev *pdev = to_pci_dev(dev);
 676         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 677         int ret;
 678
 679         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 680             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 681                 return 0;
 682
 683         ret = nouveau_do_suspend(drm_dev, false);
 684         if (ret)
 685                 return ret;
 686
 687         pci_save_state(pdev);
 688         pci_disable_device(pdev);
 689         pci_set_power_state(pdev, PCI_D3hot);
 690         udelay(200);
 691         return 0;
 692 }
 693
 694 int
 695 nouveau_pmops_resume(struct device *dev)
 696 {
 697         struct pci_dev *pdev = to_pci_dev(dev);
 698         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 699         int ret;
 700
 701         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 702             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 703                 return 0;
 704
 705         pci_set_power_state(pdev, PCI_D0);
 706         pci_restore_state(pdev);
 707         ret = pci_enable_device(pdev);
 708         if (ret)
 709                 return ret;
 710         pci_set_master(pdev);
 711
 712         ret = nouveau_do_resume(drm_dev, false);
 713
 714         /* Monitors may have been connected / disconnected during suspend */
 715         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 716
 717         return ret;
 718 }
 719
 720 static int
 721 nouveau_pmops_freeze(struct device *dev)
 722 {
 723         struct pci_dev *pdev = to_pci_dev(dev);
 724         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 725         return nouveau_do_suspend(drm_dev, false);
 726 }
 727
 728 static int
 729 nouveau_pmops_thaw(struct device *dev)
 730 {
 731         struct pci_dev *pdev = to_pci_dev(dev);
 732         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 733         return nouveau_do_resume(drm_dev, false);
 734 }
 735
 736 bool
 737 nouveau_pmops_runtime(void)
 738 {
 739         if (nouveau_runtime_pm == -1)
 740                 return nouveau_is_optimus() || nouveau_is_v1_dsm();
 741         return nouveau_runtime_pm == 1;
 742 }
 743
 744 static int
 745 nouveau_pmops_runtime_suspend(struct device *dev)
 746 {
 747         struct pci_dev *pdev = to_pci_dev(dev);
 748         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 749         int ret;
 750
 751         if (!nouveau_pmops_runtime()) {
 752                 pm_runtime_forbid(dev);
 753                 return -EBUSY;
 754         }
 755
 756         drm_kms_helper_poll_disable(drm_dev);
 757         nouveau_switcheroo_optimus_dsm();
 758         ret = nouveau_do_suspend(drm_dev, true);
 759         pci_save_state(pdev);
 760         pci_disable_device(pdev);
 761         pci_ignore_hotplug(pdev);
 762         pci_set_power_state(pdev, PCI_D3cold);
 763         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 764         return ret;
 765 }
 766
 767 static int
 768 nouveau_pmops_runtime_resume(struct device *dev)
 769 {
 770         struct pci_dev *pdev = to_pci_dev(dev);
 771         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 772         struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
 773         int ret;
 774
 775         if (!nouveau_pmops_runtime()) {
 776                 pm_runtime_forbid(dev);
 777                 return -EBUSY;
 778         }
 779
 780         pci_set_power_state(pdev, PCI_D0);
 781         pci_restore_state(pdev);
 782         ret = pci_enable_device(pdev);
 783         if (ret)
 784                 return ret;
 785         pci_set_master(pdev);
 786
 787         ret = nouveau_do_resume(drm_dev, true);
 788
 789         /* do magic */
 790         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 791         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 792
 793         /* Monitors may have been connected / disconnected during suspend */
 794         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 795
 796         return ret;
 797 }
 798
 799 static int
 800 nouveau_pmops_runtime_idle(struct device *dev)
 801 {
 802         struct pci_dev *pdev = to_pci_dev(dev);
 803         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 804         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 805         struct drm_crtc *crtc;
 806
 807         if (!nouveau_pmops_runtime()) {
 808                 pm_runtime_forbid(dev);
 809                 return -EBUSY;
 810         }
 811
 812         /* if we have a hdmi audio device - make sure it has a driver loaded */
 813         if (drm->hdmi_device) {
 814                 if (!drm->hdmi_device->driver) {
 815                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 816                         pm_runtime_mark_last_busy(dev);
 817                         return -EBUSY;
 818                 }
 819         }
 820
 821         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 822                 if (crtc->enabled) {
 823                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 824                         return -EBUSY;
 825                 }
 826         }
 827         pm_runtime_mark_last_busy(dev);
 828         pm_runtime_autosuspend(dev);
 829         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 830         return 1;
 831 }
 832
 833 static int
 834 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 835 {
 836         struct nouveau_drm *drm = nouveau_drm(dev);
 837         struct nouveau_cli *cli;
 838         char name[32], tmpname[TASK_COMM_LEN];
 839         int ret;
 840
 841         /* need to bring up power immediately if opening device */
 842         ret = pm_runtime_get_sync(dev->dev);
 843         if (ret < 0 && ret != -EACCES) {
 844                 pm_runtime_put_autosuspend(dev->dev);
 845                 return ret;
 846         }
 847
 848         get_task_comm(tmpname, current);
 849         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 850
 851         if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) {
 852                 ret = -ENOMEM;
 853                 goto done;
 854         }
 855
 856         ret = nouveau_cli_init(drm, name, cli);
 857         if (ret)
 858                 goto done;
 859
 860         cli->base.super = false;
 861
 862         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 863                 ret = nvkm_vm_new(nvxx_device(&drm->client.device), 0,
 864                                   (1ULL << 40), 0x1000, NULL, &cli->vm);
 865                 if (ret)
 866                         goto done;
 867
 868                 nvxx_client(&cli->base)->vm = cli->vm;
 869         }
 870
 871         fpriv->driver_priv = cli;
 872
 873         mutex_lock(&drm->client.mutex);
 874         list_add(&cli->head, &drm->clients);
 875         mutex_unlock(&drm->client.mutex);
 876
 877 done:
 878         if (ret && cli) {
 879                 nouveau_cli_fini(cli);
 880                 kfree(cli);
 881         }
 882
 883         pm_runtime_mark_last_busy(dev->dev);
 884         pm_runtime_put_autosuspend(dev->dev);
 885         return ret;
 886 }
 887
 888 static void
 889 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 890 {
 891         struct nouveau_cli *cli = nouveau_cli(fpriv);
 892         struct nouveau_drm *drm = nouveau_drm(dev);
 893
 894         pm_runtime_get_sync(dev->dev);
 895
 896         mutex_lock(&cli->mutex);
 897         if (cli->abi16)
 898                 nouveau_abi16_fini(cli->abi16);
 899         mutex_unlock(&cli->mutex);
 900
 901         mutex_lock(&drm->client.mutex);
 902         list_del(&cli->head);
 903         mutex_unlock(&drm->client.mutex);
 904
 905         nouveau_cli_fini(cli);
 906         kfree(cli);
 907         pm_runtime_mark_last_busy(dev->dev);
 908         pm_runtime_put_autosuspend(dev->dev);
 909 }
 910
 911 static const struct drm_ioctl_desc
 912 nouveau_ioctls[] = {
 913         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 914         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 915         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 916         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 917         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 918         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 919         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 920         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 921         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 922         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 923         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 924         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 925 };
 926
 927 long
 928 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 929 {
 930         struct drm_file *filp = file->private_data;
 931         struct drm_device *dev = filp->minor->dev;
 932         long ret;
 933
 934         ret = pm_runtime_get_sync(dev->dev);
 935         if (ret < 0 && ret != -EACCES) {
 936                 pm_runtime_put_autosuspend(dev->dev);
 937                 return ret;
 938         }
 939
 940         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 941         case DRM_NOUVEAU_NVIF:
 942                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 943                 break;
 944         default:
 945                 ret = drm_ioctl(file, cmd, arg);
 946                 break;
 947         }
 948
 949         pm_runtime_mark_last_busy(dev->dev);
 950         pm_runtime_put_autosuspend(dev->dev);
 951         return ret;
 952 }
 953
 954 static const struct file_operations
 955 nouveau_driver_fops = {
 956         .owner = THIS_MODULE,
 957         .open = drm_open,
 958         .release = drm_release,
 959         .unlocked_ioctl = nouveau_drm_ioctl,
 960         .mmap = nouveau_ttm_mmap,
 961         .poll = drm_poll,
 962         .read = drm_read,
 963 #if defined(CONFIG_COMPAT)
 964         .compat_ioctl = nouveau_compat_ioctl,
 965 #endif
 966         .llseek = noop_llseek,
 967 };
 968
 969 static struct drm_driver
 970 driver_stub = {
 971         .driver_features =
 972                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER
 973 #if defined(CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT)
 974                 | DRIVER_KMS_LEGACY_CONTEXT
 975 #endif
 976                 ,
 977
 978         .load = nouveau_drm_load,
 979         .unload = nouveau_drm_unload,
 980         .open = nouveau_drm_open,
 981         .postclose = nouveau_drm_postclose,
 982         .lastclose = nouveau_vga_lastclose,
 983
 984 #if defined(CONFIG_DEBUG_FS)
 985         .debugfs_init = nouveau_drm_debugfs_init,
 986 #endif
 987
 988         .enable_vblank = nouveau_display_vblank_enable,
 989         .disable_vblank = nouveau_display_vblank_disable,
 990         .get_scanout_position = nouveau_display_scanoutpos,
 991         .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
 992
 993         .ioctls = nouveau_ioctls,
 994         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 995         .fops = &nouveau_driver_fops,
 996
 997         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 998         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 999         .gem_prime_export = drm_gem_prime_export,
1000         .gem_prime_import = drm_gem_prime_import,
1001         .gem_prime_pin = nouveau_gem_prime_pin,
1002         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
1003         .gem_prime_unpin = nouveau_gem_prime_unpin,
1004         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
1005         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1006         .gem_prime_vmap = nouveau_gem_prime_vmap,
1007         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1008
1009         .gem_free_object_unlocked = nouveau_gem_object_del,
1010         .gem_open_object = nouveau_gem_object_open,
1011         .gem_close_object = nouveau_gem_object_close,
1012
1013         .dumb_create = nouveau_display_dumb_create,
1014         .dumb_map_offset = nouveau_display_dumb_map_offset,
1015
1016         .name = DRIVER_NAME,
1017         .desc = DRIVER_DESC,
1018 #ifdef GIT_REVISION
1019         .date = GIT_REVISION,
1020 #else
1021         .date = DRIVER_DATE,
1022 #endif
1023         .major = DRIVER_MAJOR,
1024         .minor = DRIVER_MINOR,
1025         .patchlevel = DRIVER_PATCHLEVEL,
1026 };
1027
1028 static struct pci_device_id
1029 nouveau_drm_pci_table[] = {
1030         {
1031                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1032                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1033                 .class_mask  = 0xff << 16,
1034         },
1035         {
1036                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1037                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1038                 .class_mask  = 0xff << 16,
1039         },
1040         {}
1041 };
1042
1043 static void nouveau_display_options(void)
1044 {
1045         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1046
1047         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1048         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1049         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1050         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1051         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1052         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1053         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1054         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1055         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1056         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1057         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1058 }
1059
1060 static const struct dev_pm_ops nouveau_pm_ops = {
1061         .suspend = nouveau_pmops_suspend,
1062         .resume = nouveau_pmops_resume,
1063         .freeze = nouveau_pmops_freeze,
1064         .thaw = nouveau_pmops_thaw,
1065         .poweroff = nouveau_pmops_freeze,
1066         .restore = nouveau_pmops_resume,
1067         .runtime_suspend = nouveau_pmops_runtime_suspend,
1068         .runtime_resume = nouveau_pmops_runtime_resume,
1069         .runtime_idle = nouveau_pmops_runtime_idle,
1070 };
1071
1072 static struct pci_driver
1073 nouveau_drm_pci_driver = {
1074         .name = "nouveau",
1075         .id_table = nouveau_drm_pci_table,
1076         .probe = nouveau_drm_probe,
1077         .remove = nouveau_drm_remove,
1078         .driver.pm = &nouveau_pm_ops,
1079 };
1080
1081 struct drm_device *
1082 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1083                                struct platform_device *pdev,
1084                                struct nvkm_device **pdevice)
1085 {
1086         struct drm_device *drm;
1087         int err;
1088
1089         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1090                                     true, true, ~0ULL, pdevice);
1091         if (err)
1092                 goto err_free;
1093
1094         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1095         if (IS_ERR(drm)) {
1096                 err = PTR_ERR(drm);
1097                 goto err_free;
1098         }
1099
1100         platform_set_drvdata(pdev, drm);
1101
1102         return drm;
1103
1104 err_free:
1105         nvkm_device_del(pdevice);
1106
1107         return ERR_PTR(err);
1108 }
1109
1110 static int __init
1111 nouveau_drm_init(void)
1112 {
1113         driver_pci = driver_stub;
1114         driver_platform = driver_stub;
1115
1116         nouveau_display_options();
1117
1118         if (nouveau_modeset == -1) {
1119                 if (vgacon_text_force())
1120                         nouveau_modeset = 0;
1121         }
1122
1123         if (!nouveau_modeset)
1124                 return 0;
1125
1126 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1127         platform_driver_register(&nouveau_platform_driver);
1128 #endif
1129
1130         nouveau_register_dsm_handler();
1131         nouveau_backlight_ctor();
1132
1133 #ifdef CONFIG_PCI
1134         return pci_register_driver(&nouveau_drm_pci_driver);
1135 #else
1136         return 0;
1137 #endif
1138 }
1139
1140 static void __exit
1141 nouveau_drm_exit(void)
1142 {
1143         if (!nouveau_modeset)
1144                 return;
1145
1146 #ifdef CONFIG_PCI
1147         pci_unregister_driver(&nouveau_drm_pci_driver);
1148 #endif
1149         nouveau_backlight_dtor();
1150         nouveau_unregister_dsm_handler();
1151
1152 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1153         platform_driver_unregister(&nouveau_platform_driver);
1154 #endif
1155 }
1156
1157 module_init(nouveau_drm_init);
1158 module_exit(nouveau_drm_exit);
1159
1160 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1161 MODULE_AUTHOR(DRIVER_AUTHOR);
1162 MODULE_DESCRIPTION(DRIVER_DESC);
1163 MODULE_LICENSE("GPL and additional rights");