drivers/gpu/drm/nouveau/nouveau_drm.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  */
  24
  25 #include <linux/console.h>
  26 #include <linux/delay.h>
  27 #include <linux/module.h>
  28 #include <linux/pci.h>
  29 #include <linux/pm_runtime.h>
  30 #include <linux/vga_switcheroo.h>
  31
  32 #include "drmP.h"
  33 #include "drm_crtc_helper.h"
  34
  35 #include <core/device.h>
  36 #include <core/gpuobj.h>
  37 #include <core/option.h>
  38
  39 #include "nouveau_drm.h"
  40 #include "nouveau_dma.h"
  41 #include "nouveau_ttm.h"
  42 #include "nouveau_gem.h"
  43 #include "nouveau_agp.h"
  44 #include "nouveau_vga.h"
  45 #include "nouveau_sysfs.h"
  46 #include "nouveau_hwmon.h"
  47 #include "nouveau_acpi.h"
  48 #include "nouveau_bios.h"
  49 #include "nouveau_ioctl.h"
  50 #include "nouveau_abi16.h"
  51 #include "nouveau_fbcon.h"
  52 #include "nouveau_fence.h"
  53 #include "nouveau_debugfs.h"
  54 #include "nouveau_usif.h"
  55 #include "nouveau_connector.h"
  56 #include "nouveau_platform.h"
  57
  58 MODULE_PARM_DESC(config, "option string to pass to driver core");
  59 static char *nouveau_config;
  60 module_param_named(config, nouveau_config, charp, 0400);
  61
  62 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  63 static char *nouveau_debug;
  64 module_param_named(debug, nouveau_debug, charp, 0400);
  65
  66 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  67 static int nouveau_noaccel = 0;
  68 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  69
  70 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  71                           "0 = disabled, 1 = enabled, 2 = headless)");
  72 int nouveau_modeset = -1;
  73 module_param_named(modeset, nouveau_modeset, int, 0400);
  74
  75 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  76 int nouveau_runtime_pm = -1;
  77 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  78
  79 static struct drm_driver driver_stub;
  80 static struct drm_driver driver_pci;
  81 static struct drm_driver driver_platform;
  82
  83 static u64
  84 nouveau_pci_name(struct pci_dev *pdev)
  85 {
  86         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  87         name |= pdev->bus->number << 16;
  88         name |= PCI_SLOT(pdev->devfn) << 8;
  89         return name | PCI_FUNC(pdev->devfn);
  90 }
  91
  92 static u64
  93 nouveau_platform_name(struct platform_device *platformdev)
  94 {
  95         return platformdev->id;
  96 }
  97
  98 static u64
  99 nouveau_name(struct drm_device *dev)
 100 {
 101         if (dev->pdev)
 102                 return nouveau_pci_name(dev->pdev);
 103         else
 104                 return nouveau_platform_name(dev->platformdev);
 105 }
 106
 107 static int
 108 nouveau_cli_create(u64 name, const char *sname,
 109                    int size, void **pcli)
 110 {
 111         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 112         if (cli) {
 113                 int ret = nvif_client_init(NULL, NULL, sname, name,
 114                                            nouveau_config, nouveau_debug,
 115                                           &cli->base);
 116                 if (ret == 0) {
 117                         mutex_init(&cli->mutex);
 118                         usif_client_init(cli);
 119                 }
 120                 return ret;
 121         }
 122         return -ENOMEM;
 123 }
 124
 125 static void
 126 nouveau_cli_destroy(struct nouveau_cli *cli)
 127 {
 128         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 129         nvif_client_fini(&cli->base);
 130         usif_client_fini(cli);
 131         kfree(cli);
 132 }
 133
 134 static void
 135 nouveau_accel_fini(struct nouveau_drm *drm)
 136 {
 137         nouveau_channel_del(&drm->channel);
 138         nvif_object_fini(&drm->ntfy);
 139         nvkm_gpuobj_ref(NULL, &drm->notify);
 140         nvif_object_fini(&drm->nvsw);
 141         nouveau_channel_del(&drm->cechan);
 142         nvif_object_fini(&drm->ttm.copy);
 143         if (drm->fence)
 144                 nouveau_fence(drm)->dtor(drm);
 145 }
 146
 147 static void
 148 nouveau_accel_init(struct nouveau_drm *drm)
 149 {
 150         struct nvif_device *device = &drm->device;
 151         u32 arg0, arg1;
 152         u32 sclass[16];
 153         int ret, i;
 154
 155         if (nouveau_noaccel)
 156                 return;
 157
 158         /* initialise synchronisation routines */
 159         /*XXX: this is crap, but the fence/channel stuff is a little
 160          *     backwards in some places.  this will be fixed.
 161          */
 162         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
 163         if (ret < 0)
 164                 return;
 165
 166         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
 167                 switch (sclass[i]) {
 168                 case NV03_CHANNEL_DMA:
 169                         ret = nv04_fence_create(drm);
 170                         break;
 171                 case NV10_CHANNEL_DMA:
 172                         ret = nv10_fence_create(drm);
 173                         break;
 174                 case NV17_CHANNEL_DMA:
 175                 case NV40_CHANNEL_DMA:
 176                         ret = nv17_fence_create(drm);
 177                         break;
 178                 case NV50_CHANNEL_GPFIFO:
 179                         ret = nv50_fence_create(drm);
 180                         break;
 181                 case G82_CHANNEL_GPFIFO:
 182                         ret = nv84_fence_create(drm);
 183                         break;
 184                 case FERMI_CHANNEL_GPFIFO:
 185                 case KEPLER_CHANNEL_GPFIFO_A:
 186                 case MAXWELL_CHANNEL_GPFIFO_A:
 187                         ret = nvc0_fence_create(drm);
 188                         break;
 189                 default:
 190                         break;
 191                 }
 192         }
 193
 194         if (ret) {
 195                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 196                 nouveau_accel_fini(drm);
 197                 return;
 198         }
 199
 200         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 201                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 202                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 203                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 204                                           0, &drm->cechan);
 205                 if (ret)
 206                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 207
 208                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 209                 arg1 = 1;
 210         } else
 211         if (device->info.chipset >= 0xa3 &&
 212             device->info.chipset != 0xaa &&
 213             device->info.chipset != 0xac) {
 214                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 215                                           NvDmaFB, NvDmaTT, &drm->cechan);
 216                 if (ret)
 217                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 218
 219                 arg0 = NvDmaFB;
 220                 arg1 = NvDmaTT;
 221         } else {
 222                 arg0 = NvDmaFB;
 223                 arg1 = NvDmaTT;
 224         }
 225
 226         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
 227                                  &drm->channel);
 228         if (ret) {
 229                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 230                 nouveau_accel_fini(drm);
 231                 return;
 232         }
 233
 234         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
 235                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 236         if (ret == 0) {
 237                 struct nvkm_sw_chan *swch;
 238                 ret = RING_SPACE(drm->channel, 2);
 239                 if (ret == 0) {
 240                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 241                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 242                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 243                         } else
 244                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 245                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 246                                 OUT_RING  (drm->channel, 0x001f0000);
 247                         }
 248                 }
 249                 swch = (void *)nvxx_object(&drm->nvsw)->parent;
 250                 swch->flip = nouveau_flip_complete;
 251                 swch->flip_data = drm->channel;
 252         }
 253
 254         if (ret) {
 255                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 256                 nouveau_accel_fini(drm);
 257                 return;
 258         }
 259
 260         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 261                 ret = nvkm_gpuobj_new(nvxx_object(&drm->device), NULL, 32,
 262                                       0, 0, &drm->notify);
 263                 if (ret) {
 264                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 265                         nouveau_accel_fini(drm);
 266                         return;
 267                 }
 268
 269                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
 270                                        NV_DMA_IN_MEMORY,
 271                                        &(struct nv_dma_v0) {
 272                                                 .target = NV_DMA_V0_TARGET_VRAM,
 273                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 274                                                 .start = drm->notify->addr,
 275                                                 .limit = drm->notify->addr + 31
 276                                        }, sizeof(struct nv_dma_v0),
 277                                        &drm->ntfy);
 278                 if (ret) {
 279                         nouveau_accel_fini(drm);
 280                         return;
 281                 }
 282         }
 283
 284
 285         nouveau_bo_move_init(drm);
 286 }
 287
 288 static int nouveau_drm_probe(struct pci_dev *pdev,
 289                              const struct pci_device_id *pent)
 290 {
 291         struct nvkm_device *device;
 292         struct apertures_struct *aper;
 293         bool boot = false;
 294         int ret;
 295
 296         /* remove conflicting drivers (vesafb, efifb etc) */
 297         aper = alloc_apertures(3);
 298         if (!aper)
 299                 return -ENOMEM;
 300
 301         aper->ranges[0].base = pci_resource_start(pdev, 1);
 302         aper->ranges[0].size = pci_resource_len(pdev, 1);
 303         aper->count = 1;
 304
 305         if (pci_resource_len(pdev, 2)) {
 306                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 307                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 308                 aper->count++;
 309         }
 310
 311         if (pci_resource_len(pdev, 3)) {
 312                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 313                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 314                 aper->count++;
 315         }
 316
 317 #ifdef CONFIG_X86
 318         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 319 #endif
 320         if (nouveau_modeset != 2)
 321                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 322         kfree(aper);
 323
 324         ret = nvkm_device_create(pdev, NVKM_BUS_PCI,
 325                                  nouveau_pci_name(pdev), pci_name(pdev),
 326                                  nouveau_config, nouveau_debug, &device);
 327         if (ret)
 328                 return ret;
 329
 330         pci_set_master(pdev);
 331
 332         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 333         if (ret) {
 334                 nvkm_object_ref(NULL, (struct nvkm_object **)&device);
 335                 return ret;
 336         }
 337
 338         return 0;
 339 }
 340
 341 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 342
 343 static void
 344 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 345 {
 346         struct pci_dev *pdev = drm->dev->pdev;
 347
 348         if (!pdev) {
 349                 DRM_INFO("not a PCI device; no HDMI\n");
 350                 drm->hdmi_device = NULL;
 351                 return;
 352         }
 353
 354         /* subfunction one is a hdmi audio device? */
 355         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 356                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 357
 358         if (!drm->hdmi_device) {
 359                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 360                 return;
 361         }
 362
 363         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 364                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 365                 pci_dev_put(drm->hdmi_device);
 366                 drm->hdmi_device = NULL;
 367                 return;
 368         }
 369 }
 370
 371 static int
 372 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 373 {
 374         struct pci_dev *pdev = dev->pdev;
 375         struct nouveau_drm *drm;
 376         int ret;
 377
 378         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
 379                                  (void **)&drm);
 380         if (ret)
 381                 return ret;
 382
 383         dev->dev_private = drm;
 384         drm->dev = dev;
 385         nvxx_client(&drm->client.base)->debug =
 386                 nvkm_dbgopt(nouveau_debug, "DRM");
 387
 388         INIT_LIST_HEAD(&drm->clients);
 389         spin_lock_init(&drm->tile.lock);
 390
 391         nouveau_get_hdmi_dev(drm);
 392
 393         /* make sure AGP controller is in a consistent state before we
 394          * (possibly) execute vbios init tables (see nouveau_agp.h)
 395          */
 396         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
 397                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
 398                                     NV_DEVICE_V0_DISABLE_MMIO;
 399                 /* dummy device object, doesn't init anything, but allows
 400                  * agp code access to registers
 401                  */
 402                 ret = nvif_device_init(&drm->client.base.base, NULL,
 403                                        NVDRM_DEVICE, NV_DEVICE,
 404                                        &(struct nv_device_v0) {
 405                                                 .device = ~0,
 406                                                 .disable = ~enables,
 407                                                 .debug0 = ~0,
 408                                        }, sizeof(struct nv_device_v0),
 409                                        &drm->device);
 410                 if (ret)
 411                         goto fail_device;
 412
 413                 nouveau_agp_reset(drm);
 414                 nvif_device_fini(&drm->device);
 415         }
 416
 417         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
 418                                NV_DEVICE,
 419                                &(struct nv_device_v0) {
 420                                         .device = ~0,
 421                                         .disable = 0,
 422                                         .debug0 = 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, 0x00088080, 0x00000800, 0x00000000);
 436
 437         nouveau_vga_init(drm);
 438         nouveau_agp_init(drm);
 439
 440         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 441                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 442                                   0x1000, &drm->client.vm);
 443                 if (ret)
 444                         goto fail_device;
 445
 446                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 447         }
 448
 449         ret = nouveau_ttm_init(drm);
 450         if (ret)
 451                 goto fail_ttm;
 452
 453         ret = nouveau_bios_init(dev);
 454         if (ret)
 455                 goto fail_bios;
 456
 457         ret = nouveau_display_create(dev);
 458         if (ret)
 459                 goto fail_dispctor;
 460
 461         if (dev->mode_config.num_crtc) {
 462                 ret = nouveau_display_init(dev);
 463                 if (ret)
 464                         goto fail_dispinit;
 465         }
 466
 467         nouveau_sysfs_init(dev);
 468         nouveau_hwmon_init(dev);
 469         nouveau_accel_init(drm);
 470         nouveau_fbcon_init(dev);
 471
 472         if (nouveau_runtime_pm != 0) {
 473                 pm_runtime_use_autosuspend(dev->dev);
 474                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 475                 pm_runtime_set_active(dev->dev);
 476                 pm_runtime_allow(dev->dev);
 477                 pm_runtime_mark_last_busy(dev->dev);
 478                 pm_runtime_put(dev->dev);
 479         }
 480         return 0;
 481
 482 fail_dispinit:
 483         nouveau_display_destroy(dev);
 484 fail_dispctor:
 485         nouveau_bios_takedown(dev);
 486 fail_bios:
 487         nouveau_ttm_fini(drm);
 488 fail_ttm:
 489         nouveau_agp_fini(drm);
 490         nouveau_vga_fini(drm);
 491 fail_device:
 492         nvif_device_fini(&drm->device);
 493         nouveau_cli_destroy(&drm->client);
 494         return ret;
 495 }
 496
 497 static int
 498 nouveau_drm_unload(struct drm_device *dev)
 499 {
 500         struct nouveau_drm *drm = nouveau_drm(dev);
 501
 502         pm_runtime_get_sync(dev->dev);
 503         nouveau_fbcon_fini(dev);
 504         nouveau_accel_fini(drm);
 505         nouveau_hwmon_fini(dev);
 506         nouveau_sysfs_fini(dev);
 507
 508         if (dev->mode_config.num_crtc)
 509                 nouveau_display_fini(dev);
 510         nouveau_display_destroy(dev);
 511
 512         nouveau_bios_takedown(dev);
 513
 514         nouveau_ttm_fini(drm);
 515         nouveau_agp_fini(drm);
 516         nouveau_vga_fini(drm);
 517
 518         nvif_device_fini(&drm->device);
 519         if (drm->hdmi_device)
 520                 pci_dev_put(drm->hdmi_device);
 521         nouveau_cli_destroy(&drm->client);
 522         return 0;
 523 }
 524
 525 void
 526 nouveau_drm_device_remove(struct drm_device *dev)
 527 {
 528         struct nouveau_drm *drm = nouveau_drm(dev);
 529         struct nvkm_client *client;
 530         struct nvkm_object *device;
 531
 532         dev->irq_enabled = false;
 533         client = nvxx_client(&drm->client.base);
 534         device = client->device;
 535         drm_put_dev(dev);
 536
 537         nvkm_object_ref(NULL, &device);
 538         nvkm_object_debug();
 539 }
 540
 541 static void
 542 nouveau_drm_remove(struct pci_dev *pdev)
 543 {
 544         struct drm_device *dev = pci_get_drvdata(pdev);
 545
 546         nouveau_drm_device_remove(dev);
 547 }
 548
 549 static int
 550 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 551 {
 552         struct nouveau_drm *drm = nouveau_drm(dev);
 553         struct nouveau_cli *cli;
 554         int ret;
 555
 556         if (dev->mode_config.num_crtc) {
 557                 NV_INFO(drm, "suspending console...\n");
 558                 nouveau_fbcon_set_suspend(dev, 1);
 559                 NV_INFO(drm, "suspending display...\n");
 560                 ret = nouveau_display_suspend(dev, runtime);
 561                 if (ret)
 562                         return ret;
 563         }
 564
 565         NV_INFO(drm, "evicting buffers...\n");
 566         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 567
 568         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 569         if (drm->cechan) {
 570                 ret = nouveau_channel_idle(drm->cechan);
 571                 if (ret)
 572                         goto fail_display;
 573         }
 574
 575         if (drm->channel) {
 576                 ret = nouveau_channel_idle(drm->channel);
 577                 if (ret)
 578                         goto fail_display;
 579         }
 580
 581         NV_INFO(drm, "suspending client object trees...\n");
 582         if (drm->fence && nouveau_fence(drm)->suspend) {
 583                 if (!nouveau_fence(drm)->suspend(drm)) {
 584                         ret = -ENOMEM;
 585                         goto fail_display;
 586                 }
 587         }
 588
 589         list_for_each_entry(cli, &drm->clients, head) {
 590                 ret = nvif_client_suspend(&cli->base);
 591                 if (ret)
 592                         goto fail_client;
 593         }
 594
 595         NV_INFO(drm, "suspending kernel object tree...\n");
 596         ret = nvif_client_suspend(&drm->client.base);
 597         if (ret)
 598                 goto fail_client;
 599
 600         nouveau_agp_fini(drm);
 601         return 0;
 602
 603 fail_client:
 604         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 605                 nvif_client_resume(&cli->base);
 606         }
 607
 608         if (drm->fence && nouveau_fence(drm)->resume)
 609                 nouveau_fence(drm)->resume(drm);
 610
 611 fail_display:
 612         if (dev->mode_config.num_crtc) {
 613                 NV_INFO(drm, "resuming display...\n");
 614                 nouveau_display_resume(dev, runtime);
 615         }
 616         return ret;
 617 }
 618
 619 static int
 620 nouveau_do_resume(struct drm_device *dev, bool runtime)
 621 {
 622         struct nouveau_drm *drm = nouveau_drm(dev);
 623         struct nouveau_cli *cli;
 624
 625         NV_INFO(drm, "re-enabling device...\n");
 626
 627         nouveau_agp_reset(drm);
 628
 629         NV_INFO(drm, "resuming kernel object tree...\n");
 630         nvif_client_resume(&drm->client.base);
 631         nouveau_agp_init(drm);
 632
 633         NV_INFO(drm, "resuming client object trees...\n");
 634         if (drm->fence && nouveau_fence(drm)->resume)
 635                 nouveau_fence(drm)->resume(drm);
 636
 637         list_for_each_entry(cli, &drm->clients, head) {
 638                 nvif_client_resume(&cli->base);
 639         }
 640
 641         nouveau_run_vbios_init(dev);
 642
 643         if (dev->mode_config.num_crtc) {
 644                 NV_INFO(drm, "resuming display...\n");
 645                 nouveau_display_resume(dev, runtime);
 646                 NV_INFO(drm, "resuming console...\n");
 647                 nouveau_fbcon_set_suspend(dev, 0);
 648         }
 649
 650         return 0;
 651 }
 652
 653 int
 654 nouveau_pmops_suspend(struct device *dev)
 655 {
 656         struct pci_dev *pdev = to_pci_dev(dev);
 657         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 658         int ret;
 659
 660         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 661             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 662                 return 0;
 663
 664         ret = nouveau_do_suspend(drm_dev, false);
 665         if (ret)
 666                 return ret;
 667
 668         pci_save_state(pdev);
 669         pci_disable_device(pdev);
 670         pci_set_power_state(pdev, PCI_D3hot);
 671         udelay(200);
 672         return 0;
 673 }
 674
 675 int
 676 nouveau_pmops_resume(struct device *dev)
 677 {
 678         struct pci_dev *pdev = to_pci_dev(dev);
 679         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 680         int ret;
 681
 682         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 683             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 684                 return 0;
 685
 686         pci_set_power_state(pdev, PCI_D0);
 687         pci_restore_state(pdev);
 688         ret = pci_enable_device(pdev);
 689         if (ret)
 690                 return ret;
 691         pci_set_master(pdev);
 692
 693         return nouveau_do_resume(drm_dev, false);
 694 }
 695
 696 static int
 697 nouveau_pmops_freeze(struct device *dev)
 698 {
 699         struct pci_dev *pdev = to_pci_dev(dev);
 700         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 701         return nouveau_do_suspend(drm_dev, false);
 702 }
 703
 704 static int
 705 nouveau_pmops_thaw(struct device *dev)
 706 {
 707         struct pci_dev *pdev = to_pci_dev(dev);
 708         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 709         return nouveau_do_resume(drm_dev, false);
 710 }
 711
 712 static int
 713 nouveau_pmops_runtime_suspend(struct device *dev)
 714 {
 715         struct pci_dev *pdev = to_pci_dev(dev);
 716         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 717         int ret;
 718
 719         if (nouveau_runtime_pm == 0) {
 720                 pm_runtime_forbid(dev);
 721                 return -EBUSY;
 722         }
 723
 724         /* are we optimus enabled? */
 725         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 726                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 727                 pm_runtime_forbid(dev);
 728                 return -EBUSY;
 729         }
 730
 731         nv_debug_level(SILENT);
 732         drm_kms_helper_poll_disable(drm_dev);
 733         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 734         nouveau_switcheroo_optimus_dsm();
 735         ret = nouveau_do_suspend(drm_dev, true);
 736         pci_save_state(pdev);
 737         pci_disable_device(pdev);
 738         pci_ignore_hotplug(pdev);
 739         pci_set_power_state(pdev, PCI_D3cold);
 740         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 741         return ret;
 742 }
 743
 744 static int
 745 nouveau_pmops_runtime_resume(struct device *dev)
 746 {
 747         struct pci_dev *pdev = to_pci_dev(dev);
 748         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 749         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 750         int ret;
 751
 752         if (nouveau_runtime_pm == 0)
 753                 return -EINVAL;
 754
 755         pci_set_power_state(pdev, PCI_D0);
 756         pci_restore_state(pdev);
 757         ret = pci_enable_device(pdev);
 758         if (ret)
 759                 return ret;
 760         pci_set_master(pdev);
 761
 762         ret = nouveau_do_resume(drm_dev, true);
 763         drm_kms_helper_poll_enable(drm_dev);
 764         /* do magic */
 765         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
 766         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 767         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 768         nv_debug_level(NORMAL);
 769         return ret;
 770 }
 771
 772 static int
 773 nouveau_pmops_runtime_idle(struct device *dev)
 774 {
 775         struct pci_dev *pdev = to_pci_dev(dev);
 776         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 777         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 778         struct drm_crtc *crtc;
 779
 780         if (nouveau_runtime_pm == 0) {
 781                 pm_runtime_forbid(dev);
 782                 return -EBUSY;
 783         }
 784
 785         /* are we optimus enabled? */
 786         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 787                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 788                 pm_runtime_forbid(dev);
 789                 return -EBUSY;
 790         }
 791
 792         /* if we have a hdmi audio device - make sure it has a driver loaded */
 793         if (drm->hdmi_device) {
 794                 if (!drm->hdmi_device->driver) {
 795                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 796                         pm_runtime_mark_last_busy(dev);
 797                         return -EBUSY;
 798                 }
 799         }
 800
 801         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 802                 if (crtc->enabled) {
 803                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 804                         return -EBUSY;
 805                 }
 806         }
 807         pm_runtime_mark_last_busy(dev);
 808         pm_runtime_autosuspend(dev);
 809         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 810         return 1;
 811 }
 812
 813 static int
 814 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 815 {
 816         struct nouveau_drm *drm = nouveau_drm(dev);
 817         struct nouveau_cli *cli;
 818         char name[32], tmpname[TASK_COMM_LEN];
 819         int ret;
 820
 821         /* need to bring up power immediately if opening device */
 822         ret = pm_runtime_get_sync(dev->dev);
 823         if (ret < 0 && ret != -EACCES)
 824                 return ret;
 825
 826         get_task_comm(tmpname, current);
 827         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 828
 829         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
 830                         (void **)&cli);
 831
 832         if (ret)
 833                 goto out_suspend;
 834
 835         cli->base.super = false;
 836
 837         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 838                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 839                                   0x1000, &cli->vm);
 840                 if (ret) {
 841                         nouveau_cli_destroy(cli);
 842                         goto out_suspend;
 843                 }
 844
 845                 nvxx_client(&cli->base)->vm = cli->vm;
 846         }
 847
 848         fpriv->driver_priv = cli;
 849
 850         mutex_lock(&drm->client.mutex);
 851         list_add(&cli->head, &drm->clients);
 852         mutex_unlock(&drm->client.mutex);
 853
 854 out_suspend:
 855         pm_runtime_mark_last_busy(dev->dev);
 856         pm_runtime_put_autosuspend(dev->dev);
 857
 858         return ret;
 859 }
 860
 861 static void
 862 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 863 {
 864         struct nouveau_cli *cli = nouveau_cli(fpriv);
 865         struct nouveau_drm *drm = nouveau_drm(dev);
 866
 867         pm_runtime_get_sync(dev->dev);
 868
 869         mutex_lock(&cli->mutex);
 870         if (cli->abi16)
 871                 nouveau_abi16_fini(cli->abi16);
 872         mutex_unlock(&cli->mutex);
 873
 874         mutex_lock(&drm->client.mutex);
 875         list_del(&cli->head);
 876         mutex_unlock(&drm->client.mutex);
 877
 878 }
 879
 880 static void
 881 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 882 {
 883         struct nouveau_cli *cli = nouveau_cli(fpriv);
 884         nouveau_cli_destroy(cli);
 885         pm_runtime_mark_last_busy(dev->dev);
 886         pm_runtime_put_autosuspend(dev->dev);
 887 }
 888
 889 static const struct drm_ioctl_desc
 890 nouveau_ioctls[] = {
 891         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 892         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 893         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 894         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 895         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 896         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 897         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 898         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 899         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 900         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 901         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 902         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 903 };
 904
 905 long
 906 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 907 {
 908         struct drm_file *filp = file->private_data;
 909         struct drm_device *dev = filp->minor->dev;
 910         long ret;
 911
 912         ret = pm_runtime_get_sync(dev->dev);
 913         if (ret < 0 && ret != -EACCES)
 914                 return ret;
 915
 916         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 917         case DRM_NOUVEAU_NVIF:
 918                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 919                 break;
 920         default:
 921                 ret = drm_ioctl(file, cmd, arg);
 922                 break;
 923         }
 924
 925         pm_runtime_mark_last_busy(dev->dev);
 926         pm_runtime_put_autosuspend(dev->dev);
 927         return ret;
 928 }
 929
 930 static const struct file_operations
 931 nouveau_driver_fops = {
 932         .owner = THIS_MODULE,
 933         .open = drm_open,
 934         .release = drm_release,
 935         .unlocked_ioctl = nouveau_drm_ioctl,
 936         .mmap = nouveau_ttm_mmap,
 937         .poll = drm_poll,
 938         .read = drm_read,
 939 #if defined(CONFIG_COMPAT)
 940         .compat_ioctl = nouveau_compat_ioctl,
 941 #endif
 942         .llseek = noop_llseek,
 943 };
 944
 945 static struct drm_driver
 946 driver_stub = {
 947         .driver_features =
 948                 DRIVER_USE_AGP |
 949                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
 950
 951         .load = nouveau_drm_load,
 952         .unload = nouveau_drm_unload,
 953         .open = nouveau_drm_open,
 954         .preclose = nouveau_drm_preclose,
 955         .postclose = nouveau_drm_postclose,
 956         .lastclose = nouveau_vga_lastclose,
 957
 958 #if defined(CONFIG_DEBUG_FS)
 959         .debugfs_init = nouveau_debugfs_init,
 960         .debugfs_cleanup = nouveau_debugfs_takedown,
 961 #endif
 962
 963         .get_vblank_counter = drm_vblank_count,
 964         .enable_vblank = nouveau_display_vblank_enable,
 965         .disable_vblank = nouveau_display_vblank_disable,
 966         .get_scanout_position = nouveau_display_scanoutpos,
 967         .get_vblank_timestamp = nouveau_display_vblstamp,
 968
 969         .ioctls = nouveau_ioctls,
 970         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 971         .fops = &nouveau_driver_fops,
 972
 973         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 974         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 975         .gem_prime_export = drm_gem_prime_export,
 976         .gem_prime_import = drm_gem_prime_import,
 977         .gem_prime_pin = nouveau_gem_prime_pin,
 978         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 979         .gem_prime_unpin = nouveau_gem_prime_unpin,
 980         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 981         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 982         .gem_prime_vmap = nouveau_gem_prime_vmap,
 983         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 984
 985         .gem_free_object = nouveau_gem_object_del,
 986         .gem_open_object = nouveau_gem_object_open,
 987         .gem_close_object = nouveau_gem_object_close,
 988
 989         .dumb_create = nouveau_display_dumb_create,
 990         .dumb_map_offset = nouveau_display_dumb_map_offset,
 991         .dumb_destroy = drm_gem_dumb_destroy,
 992
 993         .name = DRIVER_NAME,
 994         .desc = DRIVER_DESC,
 995 #ifdef GIT_REVISION
 996         .date = GIT_REVISION,
 997 #else
 998         .date = DRIVER_DATE,
 999 #endif
1000         .major = DRIVER_MAJOR,
1001         .minor = DRIVER_MINOR,
1002         .patchlevel = DRIVER_PATCHLEVEL,
1003 };
1004
1005 static struct pci_device_id
1006 nouveau_drm_pci_table[] = {
1007         {
1008                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1009                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1010                 .class_mask  = 0xff << 16,
1011         },
1012         {
1013                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1014                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1015                 .class_mask  = 0xff << 16,
1016         },
1017         {}
1018 };
1019
1020 static void nouveau_display_options(void)
1021 {
1022         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1023
1024         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1025         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1026         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1027         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1028         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1029         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1030         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1031         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1032         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1033         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1034         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1035 }
1036
1037 static const struct dev_pm_ops nouveau_pm_ops = {
1038         .suspend = nouveau_pmops_suspend,
1039         .resume = nouveau_pmops_resume,
1040         .freeze = nouveau_pmops_freeze,
1041         .thaw = nouveau_pmops_thaw,
1042         .poweroff = nouveau_pmops_freeze,
1043         .restore = nouveau_pmops_resume,
1044         .runtime_suspend = nouveau_pmops_runtime_suspend,
1045         .runtime_resume = nouveau_pmops_runtime_resume,
1046         .runtime_idle = nouveau_pmops_runtime_idle,
1047 };
1048
1049 static struct pci_driver
1050 nouveau_drm_pci_driver = {
1051         .name = "nouveau",
1052         .id_table = nouveau_drm_pci_table,
1053         .probe = nouveau_drm_probe,
1054         .remove = nouveau_drm_remove,
1055         .driver.pm = &nouveau_pm_ops,
1056 };
1057
1058 struct drm_device *
1059 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1060                                 void **pobject)
1061 {
1062         struct drm_device *drm;
1063         int err;
1064
1065         err = nvkm_device_create_(pdev, NVKM_BUS_PLATFORM,
1066                                   nouveau_platform_name(pdev),
1067                                   dev_name(&pdev->dev), nouveau_config,
1068                                   nouveau_debug, size, pobject);
1069         if (err)
1070                 return ERR_PTR(err);
1071
1072         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1073         if (!drm) {
1074                 err = -ENOMEM;
1075                 goto err_free;
1076         }
1077
1078         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1079         if (err < 0)
1080                 goto err_free;
1081
1082         drm->platformdev = pdev;
1083         platform_set_drvdata(pdev, drm);
1084
1085         return drm;
1086
1087 err_free:
1088         nvkm_object_ref(NULL, (struct nvkm_object **)pobject);
1089
1090         return ERR_PTR(err);
1091 }
1092
1093 static int __init
1094 nouveau_drm_init(void)
1095 {
1096         driver_pci = driver_stub;
1097         driver_pci.set_busid = drm_pci_set_busid;
1098         driver_platform = driver_stub;
1099         driver_platform.set_busid = drm_platform_set_busid;
1100
1101         nouveau_display_options();
1102
1103         if (nouveau_modeset == -1) {
1104 #ifdef CONFIG_VGA_CONSOLE
1105                 if (vgacon_text_force())
1106                         nouveau_modeset = 0;
1107 #endif
1108         }
1109
1110         if (!nouveau_modeset)
1111                 return 0;
1112
1113 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1114         platform_driver_register(&nouveau_platform_driver);
1115 #endif
1116
1117         nouveau_register_dsm_handler();
1118         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1119 }
1120
1121 static void __exit
1122 nouveau_drm_exit(void)
1123 {
1124         if (!nouveau_modeset)
1125                 return;
1126
1127         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1128         nouveau_unregister_dsm_handler();
1129
1130 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1131         platform_driver_unregister(&nouveau_platform_driver);
1132 #endif
1133 }
1134
1135 module_init(nouveau_drm_init);
1136 module_exit(nouveau_drm_exit);
1137
1138 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1139 MODULE_AUTHOR(DRIVER_AUTHOR);
1140 MODULE_DESCRIPTION(DRIVER_DESC);
1141 MODULE_LICENSE("GPL and additional rights");