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