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