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/apple-gmux.h>
  26 #include <linux/console.h>
  27 #include <linux/delay.h>
  28 #include <linux/module.h>
  29 #include <linux/pci.h>
  30 #include <linux/pm_runtime.h>
  31 #include <linux/vgaarb.h>
  32 #include <linux/vga_switcheroo.h>
  33
  34 #include "drmP.h"
  35 #include "drm_crtc_helper.h"
  36
  37 #include <core/gpuobj.h>
  38 #include <core/option.h>
  39 #include <core/pci.h>
  40 #include <core/tegra.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_drm.h"
  48 #include "nouveau_dma.h"
  49 #include "nouveau_ttm.h"
  50 #include "nouveau_gem.h"
  51 #include "nouveau_vga.h"
  52 #include "nouveau_hwmon.h"
  53 #include "nouveau_acpi.h"
  54 #include "nouveau_bios.h"
  55 #include "nouveau_ioctl.h"
  56 #include "nouveau_abi16.h"
  57 #include "nouveau_fbcon.h"
  58 #include "nouveau_fence.h"
  59 #include "nouveau_debugfs.h"
  60 #include "nouveau_usif.h"
  61 #include "nouveau_connector.h"
  62 #include "nouveau_platform.h"
  63
  64 MODULE_PARM_DESC(config, "option string to pass to driver core");
  65 static char *nouveau_config;
  66 module_param_named(config, nouveau_config, charp, 0400);
  67
  68 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  69 static char *nouveau_debug;
  70 module_param_named(debug, nouveau_debug, charp, 0400);
  71
  72 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  73 static int nouveau_noaccel = 0;
  74 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  75
  76 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  77                           "0 = disabled, 1 = enabled, 2 = headless)");
  78 int nouveau_modeset = -1;
  79 module_param_named(modeset, nouveau_modeset, int, 0400);
  80
  81 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  82 int nouveau_runtime_pm = -1;
  83 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  84
  85 static struct drm_driver driver_stub;
  86 static struct drm_driver driver_pci;
  87 static struct drm_driver driver_platform;
  88
  89 static u64
  90 nouveau_pci_name(struct pci_dev *pdev)
  91 {
  92         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  93         name |= pdev->bus->number << 16;
  94         name |= PCI_SLOT(pdev->devfn) << 8;
  95         return name | PCI_FUNC(pdev->devfn);
  96 }
  97
  98 static u64
  99 nouveau_platform_name(struct platform_device *platformdev)
 100 {
 101         return platformdev->id;
 102 }
 103
 104 static u64
 105 nouveau_name(struct drm_device *dev)
 106 {
 107         if (dev->pdev)
 108                 return nouveau_pci_name(dev->pdev);
 109         else
 110                 return nouveau_platform_name(dev->platformdev);
 111 }
 112
 113 static int
 114 nouveau_cli_create(struct drm_device *dev, const char *sname,
 115                    int size, void **pcli)
 116 {
 117         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 118         int ret;
 119         if (cli) {
 120                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
 121                 cli->dev = dev;
 122
 123                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
 124                                        nouveau_config, nouveau_debug,
 125                                        &cli->base);
 126                 if (ret == 0) {
 127                         mutex_init(&cli->mutex);
 128                         usif_client_init(cli);
 129                 }
 130                 return ret;
 131         }
 132         return -ENOMEM;
 133 }
 134
 135 static void
 136 nouveau_cli_destroy(struct nouveau_cli *cli)
 137 {
 138         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 139         nvif_client_fini(&cli->base);
 140         usif_client_fini(cli);
 141         kfree(cli);
 142 }
 143
 144 static void
 145 nouveau_accel_fini(struct nouveau_drm *drm)
 146 {
 147         nouveau_channel_idle(drm->channel);
 148         nvif_object_fini(&drm->ntfy);
 149         nvkm_gpuobj_del(&drm->notify);
 150         nvif_notify_fini(&drm->flip);
 151         nvif_object_fini(&drm->nvsw);
 152         nouveau_channel_del(&drm->channel);
 153
 154         nouveau_channel_idle(drm->cechan);
 155         nvif_object_fini(&drm->ttm.copy);
 156         nouveau_channel_del(&drm->cechan);
 157
 158         if (drm->fence)
 159                 nouveau_fence(drm)->dtor(drm);
 160 }
 161
 162 static void
 163 nouveau_accel_init(struct nouveau_drm *drm)
 164 {
 165         struct nvif_device *device = &drm->device;
 166         struct nvif_sclass *sclass;
 167         u32 arg0, arg1;
 168         int ret, i, n;
 169
 170         if (nouveau_noaccel)
 171                 return;
 172
 173         /* initialise synchronisation routines */
 174         /*XXX: this is crap, but the fence/channel stuff is a little
 175          *     backwards in some places.  this will be fixed.
 176          */
 177         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 178         if (ret < 0)
 179                 return;
 180
 181         for (ret = -ENOSYS, i = 0; i < n; i++) {
 182                 switch (sclass[i].oclass) {
 183                 case NV03_CHANNEL_DMA:
 184                         ret = nv04_fence_create(drm);
 185                         break;
 186                 case NV10_CHANNEL_DMA:
 187                         ret = nv10_fence_create(drm);
 188                         break;
 189                 case NV17_CHANNEL_DMA:
 190                 case NV40_CHANNEL_DMA:
 191                         ret = nv17_fence_create(drm);
 192                         break;
 193                 case NV50_CHANNEL_GPFIFO:
 194                         ret = nv50_fence_create(drm);
 195                         break;
 196                 case G82_CHANNEL_GPFIFO:
 197                         ret = nv84_fence_create(drm);
 198                         break;
 199                 case FERMI_CHANNEL_GPFIFO:
 200                 case KEPLER_CHANNEL_GPFIFO_A:
 201                 case MAXWELL_CHANNEL_GPFIFO_A:
 202                         ret = nvc0_fence_create(drm);
 203                         break;
 204                 default:
 205                         break;
 206                 }
 207         }
 208
 209         nvif_object_sclass_put(&sclass);
 210         if (ret) {
 211                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 212                 nouveau_accel_fini(drm);
 213                 return;
 214         }
 215
 216         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 217                 ret = nouveau_channel_new(drm, &drm->device,
 218                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 219                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 220                                           0, &drm->cechan);
 221                 if (ret)
 222                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 223
 224                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 225                 arg1 = 1;
 226         } else
 227         if (device->info.chipset >= 0xa3 &&
 228             device->info.chipset != 0xaa &&
 229             device->info.chipset != 0xac) {
 230                 ret = nouveau_channel_new(drm, &drm->device,
 231                                           NvDmaFB, NvDmaTT, &drm->cechan);
 232                 if (ret)
 233                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 234
 235                 arg0 = NvDmaFB;
 236                 arg1 = NvDmaTT;
 237         } else {
 238                 arg0 = NvDmaFB;
 239                 arg1 = NvDmaTT;
 240         }
 241
 242         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 243         if (ret) {
 244                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 245                 nouveau_accel_fini(drm);
 246                 return;
 247         }
 248
 249         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 250                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 251         if (ret == 0) {
 252                 ret = RING_SPACE(drm->channel, 2);
 253                 if (ret == 0) {
 254                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 255                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 256                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 257                         } else
 258                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 259                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 260                                 OUT_RING  (drm->channel, 0x001f0000);
 261                         }
 262                 }
 263
 264                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 265                                        false, NV04_NVSW_NTFY_UEVENT,
 266                                        NULL, 0, 0, &drm->flip);
 267                 if (ret == 0)
 268                         ret = nvif_notify_get(&drm->flip);
 269                 if (ret) {
 270                         nouveau_accel_fini(drm);
 271                         return;
 272                 }
 273         }
 274
 275         if (ret) {
 276                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 277                 nouveau_accel_fini(drm);
 278                 return;
 279         }
 280
 281         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 282                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 283                                       NULL, &drm->notify);
 284                 if (ret) {
 285                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 286                         nouveau_accel_fini(drm);
 287                         return;
 288                 }
 289
 290                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 291                                        NV_DMA_IN_MEMORY,
 292                                        &(struct nv_dma_v0) {
 293                                                 .target = NV_DMA_V0_TARGET_VRAM,
 294                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 295                                                 .start = drm->notify->addr,
 296                                                 .limit = drm->notify->addr + 31
 297                                        }, sizeof(struct nv_dma_v0),
 298                                        &drm->ntfy);
 299                 if (ret) {
 300                         nouveau_accel_fini(drm);
 301                         return;
 302                 }
 303         }
 304
 305
 306         nouveau_bo_move_init(drm);
 307 }
 308
 309 static int nouveau_drm_probe(struct pci_dev *pdev,
 310                              const struct pci_device_id *pent)
 311 {
 312         struct nvkm_device *device;
 313         struct apertures_struct *aper;
 314         bool boot = false;
 315         int ret;
 316
 317         /*
 318          * apple-gmux is needed on dual GPU MacBook Pro
 319          * to probe the panel if we're the inactive GPU.
 320          */
 321         if (IS_ENABLED(CONFIG_VGA_ARB) && IS_ENABLED(CONFIG_VGA_SWITCHEROO) &&
 322             apple_gmux_present() && pdev != vga_default_device() &&
 323             !vga_switcheroo_handler_flags())
 324                 return -EPROBE_DEFER;
 325
 326         /* remove conflicting drivers (vesafb, efifb etc) */
 327         aper = alloc_apertures(3);
 328         if (!aper)
 329                 return -ENOMEM;
 330
 331         aper->ranges[0].base = pci_resource_start(pdev, 1);
 332         aper->ranges[0].size = pci_resource_len(pdev, 1);
 333         aper->count = 1;
 334
 335         if (pci_resource_len(pdev, 2)) {
 336                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 337                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 338                 aper->count++;
 339         }
 340
 341         if (pci_resource_len(pdev, 3)) {
 342                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 343                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 344                 aper->count++;
 345         }
 346
 347 #ifdef CONFIG_X86
 348         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 349 #endif
 350         if (nouveau_modeset != 2)
 351                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 352         kfree(aper);
 353
 354         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 355                                   true, true, ~0ULL, &device);
 356         if (ret)
 357                 return ret;
 358
 359         pci_set_master(pdev);
 360
 361         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 362         if (ret) {
 363                 nvkm_device_del(&device);
 364                 return ret;
 365         }
 366
 367         return 0;
 368 }
 369
 370 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 371
 372 static void
 373 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 374 {
 375         struct pci_dev *pdev = drm->dev->pdev;
 376
 377         if (!pdev) {
 378                 DRM_INFO("not a PCI device; no HDMI\n");
 379                 drm->hdmi_device = NULL;
 380                 return;
 381         }
 382
 383         /* subfunction one is a hdmi audio device? */
 384         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 385                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 386
 387         if (!drm->hdmi_device) {
 388                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 389                 return;
 390         }
 391
 392         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 393                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 394                 pci_dev_put(drm->hdmi_device);
 395                 drm->hdmi_device = NULL;
 396                 return;
 397         }
 398 }
 399
 400 static int
 401 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 402 {
 403         struct nouveau_drm *drm;
 404         int ret;
 405
 406         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 407         if (ret)
 408                 return ret;
 409
 410         dev->dev_private = drm;
 411         drm->dev = dev;
 412         nvxx_client(&drm->client.base)->debug =
 413                 nvkm_dbgopt(nouveau_debug, "DRM");
 414
 415         INIT_LIST_HEAD(&drm->clients);
 416         spin_lock_init(&drm->tile.lock);
 417
 418         nouveau_get_hdmi_dev(drm);
 419
 420         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 421                                &(struct nv_device_v0) {
 422                                         .device = ~0,
 423                                }, sizeof(struct nv_device_v0),
 424                                &drm->device);
 425         if (ret)
 426                 goto fail_device;
 427
 428         dev->irq_enabled = true;
 429
 430         /* workaround an odd issue on nvc1 by disabling the device's
 431          * nosnoop capability.  hopefully won't cause issues until a
 432          * better fix is found - assuming there is one...
 433          */
 434         if (drm->device.info.chipset == 0xc1)
 435                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 436
 437         nouveau_vga_init(drm);
 438
 439         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 440                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 441                                   0x1000, NULL, &drm->client.vm);
 442                 if (ret)
 443                         goto fail_device;
 444
 445                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 446         }
 447
 448         ret = nouveau_ttm_init(drm);
 449         if (ret)
 450                 goto fail_ttm;
 451
 452         ret = nouveau_bios_init(dev);
 453         if (ret)
 454                 goto fail_bios;
 455
 456         ret = nouveau_display_create(dev);
 457         if (ret)
 458                 goto fail_dispctor;
 459
 460         if (dev->mode_config.num_crtc) {
 461                 ret = nouveau_display_init(dev);
 462                 if (ret)
 463                         goto fail_dispinit;
 464         }
 465
 466         nouveau_debugfs_init(drm);
 467         nouveau_hwmon_init(dev);
 468         nouveau_accel_init(drm);
 469         nouveau_fbcon_init(dev);
 470
 471         if (nouveau_runtime_pm != 0) {
 472                 pm_runtime_use_autosuspend(dev->dev);
 473                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 474                 pm_runtime_set_active(dev->dev);
 475                 pm_runtime_allow(dev->dev);
 476                 pm_runtime_mark_last_busy(dev->dev);
 477                 pm_runtime_put(dev->dev);
 478         }
 479         return 0;
 480
 481 fail_dispinit:
 482         nouveau_display_destroy(dev);
 483 fail_dispctor:
 484         nouveau_bios_takedown(dev);
 485 fail_bios:
 486         nouveau_ttm_fini(drm);
 487 fail_ttm:
 488         nouveau_vga_fini(drm);
 489 fail_device:
 490         nvif_device_fini(&drm->device);
 491         nouveau_cli_destroy(&drm->client);
 492         return ret;
 493 }
 494
 495 static int
 496 nouveau_drm_unload(struct drm_device *dev)
 497 {
 498         struct nouveau_drm *drm = nouveau_drm(dev);
 499
 500         pm_runtime_get_sync(dev->dev);
 501         nouveau_fbcon_fini(dev);
 502         nouveau_accel_fini(drm);
 503         nouveau_hwmon_fini(dev);
 504         nouveau_debugfs_fini(drm);
 505
 506         if (dev->mode_config.num_crtc)
 507                 nouveau_display_fini(dev);
 508         nouveau_display_destroy(dev);
 509
 510         nouveau_bios_takedown(dev);
 511
 512         nouveau_ttm_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_device *device;
 528
 529         dev->irq_enabled = false;
 530         client = nvxx_client(&drm->client.base);
 531         device = nvkm_device_find(client->device);
 532         drm_put_dev(dev);
 533
 534         nvkm_device_del(&device);
 535 }
 536
 537 static void
 538 nouveau_drm_remove(struct pci_dev *pdev)
 539 {
 540         struct drm_device *dev = pci_get_drvdata(pdev);
 541
 542         nouveau_drm_device_remove(dev);
 543 }
 544
 545 static int
 546 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 547 {
 548         struct nouveau_drm *drm = nouveau_drm(dev);
 549         struct nouveau_cli *cli;
 550         int ret;
 551
 552         if (dev->mode_config.num_crtc) {
 553                 NV_INFO(drm, "suspending console...\n");
 554                 nouveau_fbcon_set_suspend(dev, 1);
 555                 NV_INFO(drm, "suspending display...\n");
 556                 ret = nouveau_display_suspend(dev, runtime);
 557                 if (ret)
 558                         return ret;
 559         }
 560
 561         NV_INFO(drm, "evicting buffers...\n");
 562         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 563
 564         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 565         if (drm->cechan) {
 566                 ret = nouveau_channel_idle(drm->cechan);
 567                 if (ret)
 568                         goto fail_display;
 569         }
 570
 571         if (drm->channel) {
 572                 ret = nouveau_channel_idle(drm->channel);
 573                 if (ret)
 574                         goto fail_display;
 575         }
 576
 577         NV_INFO(drm, "suspending client object trees...\n");
 578         if (drm->fence && nouveau_fence(drm)->suspend) {
 579                 if (!nouveau_fence(drm)->suspend(drm)) {
 580                         ret = -ENOMEM;
 581                         goto fail_display;
 582                 }
 583         }
 584
 585         list_for_each_entry(cli, &drm->clients, head) {
 586                 ret = nvif_client_suspend(&cli->base);
 587                 if (ret)
 588                         goto fail_client;
 589         }
 590
 591         NV_INFO(drm, "suspending kernel object tree...\n");
 592         ret = nvif_client_suspend(&drm->client.base);
 593         if (ret)
 594                 goto fail_client;
 595
 596         return 0;
 597
 598 fail_client:
 599         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 600                 nvif_client_resume(&cli->base);
 601         }
 602
 603         if (drm->fence && nouveau_fence(drm)->resume)
 604                 nouveau_fence(drm)->resume(drm);
 605
 606 fail_display:
 607         if (dev->mode_config.num_crtc) {
 608                 NV_INFO(drm, "resuming display...\n");
 609                 nouveau_display_resume(dev, runtime);
 610         }
 611         return ret;
 612 }
 613
 614 static int
 615 nouveau_do_resume(struct drm_device *dev, bool runtime)
 616 {
 617         struct nouveau_drm *drm = nouveau_drm(dev);
 618         struct nouveau_cli *cli;
 619
 620         NV_INFO(drm, "resuming kernel object tree...\n");
 621         nvif_client_resume(&drm->client.base);
 622
 623         NV_INFO(drm, "resuming client object trees...\n");
 624         if (drm->fence && nouveau_fence(drm)->resume)
 625                 nouveau_fence(drm)->resume(drm);
 626
 627         list_for_each_entry(cli, &drm->clients, head) {
 628                 nvif_client_resume(&cli->base);
 629         }
 630
 631         nouveau_run_vbios_init(dev);
 632
 633         if (dev->mode_config.num_crtc) {
 634                 NV_INFO(drm, "resuming display...\n");
 635                 nouveau_display_resume(dev, runtime);
 636                 NV_INFO(drm, "resuming console...\n");
 637                 nouveau_fbcon_set_suspend(dev, 0);
 638         }
 639
 640         return 0;
 641 }
 642
 643 int
 644 nouveau_pmops_suspend(struct device *dev)
 645 {
 646         struct pci_dev *pdev = to_pci_dev(dev);
 647         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 648         int ret;
 649
 650         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 651             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 652                 return 0;
 653
 654         ret = nouveau_do_suspend(drm_dev, false);
 655         if (ret)
 656                 return ret;
 657
 658         pci_save_state(pdev);
 659         pci_disable_device(pdev);
 660         pci_set_power_state(pdev, PCI_D3hot);
 661         udelay(200);
 662         return 0;
 663 }
 664
 665 int
 666 nouveau_pmops_resume(struct device *dev)
 667 {
 668         struct pci_dev *pdev = to_pci_dev(dev);
 669         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 670         int ret;
 671
 672         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 673             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 674                 return 0;
 675
 676         pci_set_power_state(pdev, PCI_D0);
 677         pci_restore_state(pdev);
 678         ret = pci_enable_device(pdev);
 679         if (ret)
 680                 return ret;
 681         pci_set_master(pdev);
 682
 683         return nouveau_do_resume(drm_dev, false);
 684 }
 685
 686 static int
 687 nouveau_pmops_freeze(struct device *dev)
 688 {
 689         struct pci_dev *pdev = to_pci_dev(dev);
 690         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 691         return nouveau_do_suspend(drm_dev, false);
 692 }
 693
 694 static int
 695 nouveau_pmops_thaw(struct device *dev)
 696 {
 697         struct pci_dev *pdev = to_pci_dev(dev);
 698         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 699         return nouveau_do_resume(drm_dev, false);
 700 }
 701
 702 static int
 703 nouveau_pmops_runtime_suspend(struct device *dev)
 704 {
 705         struct pci_dev *pdev = to_pci_dev(dev);
 706         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 707         int ret;
 708
 709         if (nouveau_runtime_pm == 0) {
 710                 pm_runtime_forbid(dev);
 711                 return -EBUSY;
 712         }
 713
 714         /* are we optimus enabled? */
 715         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 716                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 717                 pm_runtime_forbid(dev);
 718                 return -EBUSY;
 719         }
 720
 721         drm_kms_helper_poll_disable(drm_dev);
 722         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 723         nouveau_switcheroo_optimus_dsm();
 724         ret = nouveau_do_suspend(drm_dev, true);
 725         pci_save_state(pdev);
 726         pci_disable_device(pdev);
 727         pci_ignore_hotplug(pdev);
 728         pci_set_power_state(pdev, PCI_D3cold);
 729         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 730         return ret;
 731 }
 732
 733 static int
 734 nouveau_pmops_runtime_resume(struct device *dev)
 735 {
 736         struct pci_dev *pdev = to_pci_dev(dev);
 737         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 738         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 739         int ret;
 740
 741         if (nouveau_runtime_pm == 0)
 742                 return -EINVAL;
 743
 744         pci_set_power_state(pdev, PCI_D0);
 745         pci_restore_state(pdev);
 746         ret = pci_enable_device(pdev);
 747         if (ret)
 748                 return ret;
 749         pci_set_master(pdev);
 750
 751         ret = nouveau_do_resume(drm_dev, true);
 752         drm_kms_helper_poll_enable(drm_dev);
 753         /* do magic */
 754         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 755         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 756         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 757         return ret;
 758 }
 759
 760 static int
 761 nouveau_pmops_runtime_idle(struct device *dev)
 762 {
 763         struct pci_dev *pdev = to_pci_dev(dev);
 764         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 765         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 766         struct drm_crtc *crtc;
 767
 768         if (nouveau_runtime_pm == 0) {
 769                 pm_runtime_forbid(dev);
 770                 return -EBUSY;
 771         }
 772
 773         /* are we optimus enabled? */
 774         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 775                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 776                 pm_runtime_forbid(dev);
 777                 return -EBUSY;
 778         }
 779
 780         /* if we have a hdmi audio device - make sure it has a driver loaded */
 781         if (drm->hdmi_device) {
 782                 if (!drm->hdmi_device->driver) {
 783                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 784                         pm_runtime_mark_last_busy(dev);
 785                         return -EBUSY;
 786                 }
 787         }
 788
 789         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 790                 if (crtc->enabled) {
 791                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 792                         return -EBUSY;
 793                 }
 794         }
 795         pm_runtime_mark_last_busy(dev);
 796         pm_runtime_autosuspend(dev);
 797         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 798         return 1;
 799 }
 800
 801 static int
 802 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 803 {
 804         struct nouveau_drm *drm = nouveau_drm(dev);
 805         struct nouveau_cli *cli;
 806         char name[32], tmpname[TASK_COMM_LEN];
 807         int ret;
 808
 809         /* need to bring up power immediately if opening device */
 810         ret = pm_runtime_get_sync(dev->dev);
 811         if (ret < 0 && ret != -EACCES)
 812                 return ret;
 813
 814         get_task_comm(tmpname, current);
 815         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 816
 817         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 818
 819         if (ret)
 820                 goto out_suspend;
 821
 822         cli->base.super = false;
 823
 824         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 825                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 826                                   0x1000, NULL, &cli->vm);
 827                 if (ret) {
 828                         nouveau_cli_destroy(cli);
 829                         goto out_suspend;
 830                 }
 831
 832                 nvxx_client(&cli->base)->vm = cli->vm;
 833         }
 834
 835         fpriv->driver_priv = cli;
 836
 837         mutex_lock(&drm->client.mutex);
 838         list_add(&cli->head, &drm->clients);
 839         mutex_unlock(&drm->client.mutex);
 840
 841 out_suspend:
 842         pm_runtime_mark_last_busy(dev->dev);
 843         pm_runtime_put_autosuspend(dev->dev);
 844
 845         return ret;
 846 }
 847
 848 static void
 849 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 850 {
 851         struct nouveau_cli *cli = nouveau_cli(fpriv);
 852         struct nouveau_drm *drm = nouveau_drm(dev);
 853
 854         pm_runtime_get_sync(dev->dev);
 855
 856         mutex_lock(&cli->mutex);
 857         if (cli->abi16)
 858                 nouveau_abi16_fini(cli->abi16);
 859         mutex_unlock(&cli->mutex);
 860
 861         mutex_lock(&drm->client.mutex);
 862         list_del(&cli->head);
 863         mutex_unlock(&drm->client.mutex);
 864
 865 }
 866
 867 static void
 868 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 869 {
 870         struct nouveau_cli *cli = nouveau_cli(fpriv);
 871         nouveau_cli_destroy(cli);
 872         pm_runtime_mark_last_busy(dev->dev);
 873         pm_runtime_put_autosuspend(dev->dev);
 874 }
 875
 876 static const struct drm_ioctl_desc
 877 nouveau_ioctls[] = {
 878         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 879         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 880         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 881         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 882         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 883         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 884         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 885         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 886         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 887         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 888         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 889         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 890 };
 891
 892 long
 893 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 894 {
 895         struct drm_file *filp = file->private_data;
 896         struct drm_device *dev = filp->minor->dev;
 897         long ret;
 898
 899         ret = pm_runtime_get_sync(dev->dev);
 900         if (ret < 0 && ret != -EACCES)
 901                 return ret;
 902
 903         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 904         case DRM_NOUVEAU_NVIF:
 905                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 906                 break;
 907         default:
 908                 ret = drm_ioctl(file, cmd, arg);
 909                 break;
 910         }
 911
 912         pm_runtime_mark_last_busy(dev->dev);
 913         pm_runtime_put_autosuspend(dev->dev);
 914         return ret;
 915 }
 916
 917 static const struct file_operations
 918 nouveau_driver_fops = {
 919         .owner = THIS_MODULE,
 920         .open = drm_open,
 921         .release = drm_release,
 922         .unlocked_ioctl = nouveau_drm_ioctl,
 923         .mmap = nouveau_ttm_mmap,
 924         .poll = drm_poll,
 925         .read = drm_read,
 926 #if defined(CONFIG_COMPAT)
 927         .compat_ioctl = nouveau_compat_ioctl,
 928 #endif
 929         .llseek = noop_llseek,
 930 };
 931
 932 static struct drm_driver
 933 driver_stub = {
 934         .driver_features =
 935                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 936                 DRIVER_KMS_LEGACY_CONTEXT,
 937
 938         .load = nouveau_drm_load,
 939         .unload = nouveau_drm_unload,
 940         .open = nouveau_drm_open,
 941         .preclose = nouveau_drm_preclose,
 942         .postclose = nouveau_drm_postclose,
 943         .lastclose = nouveau_vga_lastclose,
 944
 945 #if defined(CONFIG_DEBUG_FS)
 946         .debugfs_init = nouveau_drm_debugfs_init,
 947         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
 948 #endif
 949
 950         .get_vblank_counter = drm_vblank_no_hw_counter,
 951         .enable_vblank = nouveau_display_vblank_enable,
 952         .disable_vblank = nouveau_display_vblank_disable,
 953         .get_scanout_position = nouveau_display_scanoutpos,
 954         .get_vblank_timestamp = nouveau_display_vblstamp,
 955
 956         .ioctls = nouveau_ioctls,
 957         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 958         .fops = &nouveau_driver_fops,
 959
 960         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 961         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 962         .gem_prime_export = drm_gem_prime_export,
 963         .gem_prime_import = drm_gem_prime_import,
 964         .gem_prime_pin = nouveau_gem_prime_pin,
 965         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 966         .gem_prime_unpin = nouveau_gem_prime_unpin,
 967         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 968         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 969         .gem_prime_vmap = nouveau_gem_prime_vmap,
 970         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 971
 972         .gem_free_object = nouveau_gem_object_del,
 973         .gem_open_object = nouveau_gem_object_open,
 974         .gem_close_object = nouveau_gem_object_close,
 975
 976         .dumb_create = nouveau_display_dumb_create,
 977         .dumb_map_offset = nouveau_display_dumb_map_offset,
 978         .dumb_destroy = drm_gem_dumb_destroy,
 979
 980         .name = DRIVER_NAME,
 981         .desc = DRIVER_DESC,
 982 #ifdef GIT_REVISION
 983         .date = GIT_REVISION,
 984 #else
 985         .date = DRIVER_DATE,
 986 #endif
 987         .major = DRIVER_MAJOR,
 988         .minor = DRIVER_MINOR,
 989         .patchlevel = DRIVER_PATCHLEVEL,
 990 };
 991
 992 static struct pci_device_id
 993 nouveau_drm_pci_table[] = {
 994         {
 995                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 996                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 997                 .class_mask  = 0xff << 16,
 998         },
 999         {
1000                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1001                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1002                 .class_mask  = 0xff << 16,
1003         },
1004         {}
1005 };
1006
1007 static void nouveau_display_options(void)
1008 {
1009         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1010
1011         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1012         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1013         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1014         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1015         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1016         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1017         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1018         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1019         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1020         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1021 }
1022
1023 static const struct dev_pm_ops nouveau_pm_ops = {
1024         .suspend = nouveau_pmops_suspend,
1025         .resume = nouveau_pmops_resume,
1026         .freeze = nouveau_pmops_freeze,
1027         .thaw = nouveau_pmops_thaw,
1028         .poweroff = nouveau_pmops_freeze,
1029         .restore = nouveau_pmops_resume,
1030         .runtime_suspend = nouveau_pmops_runtime_suspend,
1031         .runtime_resume = nouveau_pmops_runtime_resume,
1032         .runtime_idle = nouveau_pmops_runtime_idle,
1033 };
1034
1035 static struct pci_driver
1036 nouveau_drm_pci_driver = {
1037         .name = "nouveau",
1038         .id_table = nouveau_drm_pci_table,
1039         .probe = nouveau_drm_probe,
1040         .remove = nouveau_drm_remove,
1041         .driver.pm = &nouveau_pm_ops,
1042 };
1043
1044 struct drm_device *
1045 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1046                                struct platform_device *pdev,
1047                                struct nvkm_device **pdevice)
1048 {
1049         struct drm_device *drm;
1050         int err;
1051
1052         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1053                                     true, true, ~0ULL, pdevice);
1054         if (err)
1055                 goto err_free;
1056
1057         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1058         if (!drm) {
1059                 err = -ENOMEM;
1060                 goto err_free;
1061         }
1062
1063         drm->platformdev = pdev;
1064         platform_set_drvdata(pdev, drm);
1065
1066         return drm;
1067
1068 err_free:
1069         nvkm_device_del(pdevice);
1070
1071         return ERR_PTR(err);
1072 }
1073
1074 static int __init
1075 nouveau_drm_init(void)
1076 {
1077         driver_pci = driver_stub;
1078         driver_pci.set_busid = drm_pci_set_busid;
1079         driver_platform = driver_stub;
1080         driver_platform.set_busid = drm_platform_set_busid;
1081
1082         nouveau_display_options();
1083
1084         if (nouveau_modeset == -1) {
1085 #ifdef CONFIG_VGA_CONSOLE
1086                 if (vgacon_text_force())
1087                         nouveau_modeset = 0;
1088 #endif
1089         }
1090
1091         if (!nouveau_modeset)
1092                 return 0;
1093
1094 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1095         platform_driver_register(&nouveau_platform_driver);
1096 #endif
1097
1098         nouveau_register_dsm_handler();
1099         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1100 }
1101
1102 static void __exit
1103 nouveau_drm_exit(void)
1104 {
1105         if (!nouveau_modeset)
1106                 return;
1107
1108         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1109         nouveau_unregister_dsm_handler();
1110
1111 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1112         platform_driver_unregister(&nouveau_platform_driver);
1113 #endif
1114 }
1115
1116 module_init(nouveau_drm_init);
1117 module_exit(nouveau_drm_exit);
1118
1119 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1120 MODULE_AUTHOR(DRIVER_AUTHOR);
1121 MODULE_DESCRIPTION(DRIVER_DESC);
1122 MODULE_LICENSE("GPL and additional rights");