kernel/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 #include "nouveau_connector.h"
  55 #include "nouveau_platform.h"
  56
  57 MODULE_PARM_DESC(config, "option string to pass to driver core");
  58 static char *nouveau_config;
  59 module_param_named(config, nouveau_config, charp, 0400);
  60
  61 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  62 static char *nouveau_debug;
  63 module_param_named(debug, nouveau_debug, charp, 0400);
  64
  65 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  66 static int nouveau_noaccel = 0;
  67 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  68
  69 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  70                           "0 = disabled, 1 = enabled, 2 = headless)");
  71 int nouveau_modeset = -1;
  72 module_param_named(modeset, nouveau_modeset, int, 0400);
  73
  74 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  75 int nouveau_runtime_pm = -1;
  76 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  77
  78 static struct drm_driver driver_stub;
  79 static struct drm_driver driver_pci;
  80 static struct drm_driver driver_platform;
  81
  82 static u64
  83 nouveau_pci_name(struct pci_dev *pdev)
  84 {
  85         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  86         name |= pdev->bus->number << 16;
  87         name |= PCI_SLOT(pdev->devfn) << 8;
  88         return name | PCI_FUNC(pdev->devfn);
  89 }
  90
  91 static u64
  92 nouveau_platform_name(struct platform_device *platformdev)
  93 {
  94         return platformdev->id;
  95 }
  96
  97 static u64
  98 nouveau_name(struct drm_device *dev)
  99 {
 100         if (dev->pdev)
 101                 return nouveau_pci_name(dev->pdev);
 102         else
 103                 return nouveau_platform_name(dev->platformdev);
 104 }
 105
 106 static int
 107 nouveau_cli_create(u64 name, const char *sname,
 108                    int size, void **pcli)
 109 {
 110         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 111         if (cli) {
 112                 int ret = nvif_client_init(NULL, NULL, sname, name,
 113                                            nouveau_config, nouveau_debug,
 114                                           &cli->base);
 115                 if (ret == 0) {
 116                         mutex_init(&cli->mutex);
 117                         usif_client_init(cli);
 118                 }
 119                 return ret;
 120         }
 121         return -ENOMEM;
 122 }
 123
 124 static void
 125 nouveau_cli_destroy(struct nouveau_cli *cli)
 126 {
 127         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 128         nvif_client_fini(&cli->base);
 129         usif_client_fini(cli);
 130 }
 131
 132 static void
 133 nouveau_accel_fini(struct nouveau_drm *drm)
 134 {
 135         nouveau_channel_del(&drm->channel);
 136         nvif_object_fini(&drm->ntfy);
 137         nvkm_gpuobj_ref(NULL, &drm->notify);
 138         nvif_object_fini(&drm->nvsw);
 139         nouveau_channel_del(&drm->cechan);
 140         nvif_object_fini(&drm->ttm.copy);
 141         if (drm->fence)
 142                 nouveau_fence(drm)->dtor(drm);
 143 }
 144
 145 static void
 146 nouveau_accel_init(struct nouveau_drm *drm)
 147 {
 148         struct nvif_device *device = &drm->device;
 149         u32 arg0, arg1;
 150         u32 sclass[16];
 151         int ret, i;
 152
 153         if (nouveau_noaccel)
 154                 return;
 155
 156         /* initialise synchronisation routines */
 157         /*XXX: this is crap, but the fence/channel stuff is a little
 158          *     backwards in some places.  this will be fixed.
 159          */
 160         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
 161         if (ret < 0)
 162                 return;
 163
 164         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
 165                 switch (sclass[i]) {
 166                 case NV03_CHANNEL_DMA:
 167                         ret = nv04_fence_create(drm);
 168                         break;
 169                 case NV10_CHANNEL_DMA:
 170                         ret = nv10_fence_create(drm);
 171                         break;
 172                 case NV17_CHANNEL_DMA:
 173                 case NV40_CHANNEL_DMA:
 174                         ret = nv17_fence_create(drm);
 175                         break;
 176                 case NV50_CHANNEL_GPFIFO:
 177                         ret = nv50_fence_create(drm);
 178                         break;
 179                 case G82_CHANNEL_GPFIFO:
 180                         ret = nv84_fence_create(drm);
 181                         break;
 182                 case FERMI_CHANNEL_GPFIFO:
 183                 case KEPLER_CHANNEL_GPFIFO_A:
 184                 case MAXWELL_CHANNEL_GPFIFO_A:
 185                         ret = nvc0_fence_create(drm);
 186                         break;
 187                 default:
 188                         break;
 189                 }
 190         }
 191
 192         if (ret) {
 193                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 194                 nouveau_accel_fini(drm);
 195                 return;
 196         }
 197
 198         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 199                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 200                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 201                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 202                                           0, &drm->cechan);
 203                 if (ret)
 204                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 205
 206                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 207                 arg1 = 1;
 208         } else
 209         if (device->info.chipset >= 0xa3 &&
 210             device->info.chipset != 0xaa &&
 211             device->info.chipset != 0xac) {
 212                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
 213                                           NvDmaFB, NvDmaTT, &drm->cechan);
 214                 if (ret)
 215                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 216
 217                 arg0 = NvDmaFB;
 218                 arg1 = NvDmaTT;
 219         } else {
 220                 arg0 = NvDmaFB;
 221                 arg1 = NvDmaTT;
 222         }
 223
 224         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
 225                                  &drm->channel);
 226         if (ret) {
 227                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 228                 nouveau_accel_fini(drm);
 229                 return;
 230         }
 231
 232         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
 233                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 234         if (ret == 0) {
 235                 struct nvkm_sw_chan *swch;
 236                 ret = RING_SPACE(drm->channel, 2);
 237                 if (ret == 0) {
 238                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 239                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 240                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 241                         } else
 242                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 243                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 244                                 OUT_RING  (drm->channel, 0x001f0000);
 245                         }
 246                 }
 247                 swch = (void *)nvxx_object(&drm->nvsw)->parent;
 248                 swch->flip = nouveau_flip_complete;
 249                 swch->flip_data = drm->channel;
 250         }
 251
 252         if (ret) {
 253                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 254                 nouveau_accel_fini(drm);
 255                 return;
 256         }
 257
 258         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 259                 ret = nvkm_gpuobj_new(nvxx_object(&drm->device), NULL, 32,
 260                                       0, 0, &drm->notify);
 261                 if (ret) {
 262                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 263                         nouveau_accel_fini(drm);
 264                         return;
 265                 }
 266
 267                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
 268                                        NV_DMA_IN_MEMORY,
 269                                        &(struct nv_dma_v0) {
 270                                                 .target = NV_DMA_V0_TARGET_VRAM,
 271                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 272                                                 .start = drm->notify->addr,
 273                                                 .limit = drm->notify->addr + 31
 274                                        }, sizeof(struct nv_dma_v0),
 275                                        &drm->ntfy);
 276                 if (ret) {
 277                         nouveau_accel_fini(drm);
 278                         return;
 279                 }
 280         }
 281
 282
 283         nouveau_bo_move_init(drm);
 284 }
 285
 286 static int nouveau_drm_probe(struct pci_dev *pdev,
 287                              const struct pci_device_id *pent)
 288 {
 289         struct nvkm_device *device;
 290         struct apertures_struct *aper;
 291         bool boot = false;
 292         int ret;
 293
 294         /* remove conflicting drivers (vesafb, efifb etc) */
 295         aper = alloc_apertures(3);
 296         if (!aper)
 297                 return -ENOMEM;
 298
 299         aper->ranges[0].base = pci_resource_start(pdev, 1);
 300         aper->ranges[0].size = pci_resource_len(pdev, 1);
 301         aper->count = 1;
 302
 303         if (pci_resource_len(pdev, 2)) {
 304                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 305                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 306                 aper->count++;
 307         }
 308
 309         if (pci_resource_len(pdev, 3)) {
 310                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 311                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 312                 aper->count++;
 313         }
 314
 315 #ifdef CONFIG_X86
 316         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 317 #endif
 318         if (nouveau_modeset != 2)
 319                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 320         kfree(aper);
 321
 322         ret = nvkm_device_create(pdev, NVKM_BUS_PCI,
 323                                  nouveau_pci_name(pdev), pci_name(pdev),
 324                                  nouveau_config, nouveau_debug, &device);
 325         if (ret)
 326                 return ret;
 327
 328         pci_set_master(pdev);
 329
 330         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 331         if (ret) {
 332                 nvkm_object_ref(NULL, (struct nvkm_object **)&device);
 333                 return ret;
 334         }
 335
 336         return 0;
 337 }
 338
 339 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 340
 341 static void
 342 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 343 {
 344         struct pci_dev *pdev = drm->dev->pdev;
 345
 346         if (!pdev) {
 347                 DRM_INFO("not a PCI device; no HDMI\n");
 348                 drm->hdmi_device = NULL;
 349                 return;
 350         }
 351
 352         /* subfunction one is a hdmi audio device? */
 353         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 354                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 355
 356         if (!drm->hdmi_device) {
 357                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 358                 return;
 359         }
 360
 361         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 362                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 363                 pci_dev_put(drm->hdmi_device);
 364                 drm->hdmi_device = NULL;
 365                 return;
 366         }
 367 }
 368
 369 static int
 370 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 371 {
 372         struct pci_dev *pdev = dev->pdev;
 373         struct nouveau_drm *drm;
 374         int ret;
 375
 376         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
 377                                  (void **)&drm);
 378         if (ret)
 379                 return ret;
 380
 381         dev->dev_private = drm;
 382         drm->dev = dev;
 383         nvxx_client(&drm->client.base)->debug =
 384                 nvkm_dbgopt(nouveau_debug, "DRM");
 385
 386         INIT_LIST_HEAD(&drm->clients);
 387         spin_lock_init(&drm->tile.lock);
 388
 389         nouveau_get_hdmi_dev(drm);
 390
 391         /* make sure AGP controller is in a consistent state before we
 392          * (possibly) execute vbios init tables (see nouveau_agp.h)
 393          */
 394         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
 395                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
 396                                     NV_DEVICE_V0_DISABLE_MMIO;
 397                 /* dummy device object, doesn't init anything, but allows
 398                  * agp code access to registers
 399                  */
 400                 ret = nvif_device_init(&drm->client.base.base, NULL,
 401                                        NVDRM_DEVICE, NV_DEVICE,
 402                                        &(struct nv_device_v0) {
 403                                                 .device = ~0,
 404                                                 .disable = ~enables,
 405                                                 .debug0 = ~0,
 406                                        }, sizeof(struct nv_device_v0),
 407                                        &drm->device);
 408                 if (ret)
 409                         goto fail_device;
 410
 411                 nouveau_agp_reset(drm);
 412                 nvif_device_fini(&drm->device);
 413         }
 414
 415         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
 416                                NV_DEVICE,
 417                                &(struct nv_device_v0) {
 418                                         .device = ~0,
 419                                         .disable = 0,
 420                                         .debug0 = 0,
 421                                }, sizeof(struct nv_device_v0),
 422                                &drm->device);
 423         if (ret)
 424                 goto fail_device;
 425
 426         dev->irq_enabled = true;
 427
 428         /* workaround an odd issue on nvc1 by disabling the device's
 429          * nosnoop capability.  hopefully won't cause issues until a
 430          * better fix is found - assuming there is one...
 431          */
 432         if (drm->device.info.chipset == 0xc1)
 433                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
 434
 435         nouveau_vga_init(drm);
 436         nouveau_agp_init(drm);
 437
 438         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 439                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 440                                   0x1000, &drm->client.vm);
 441                 if (ret)
 442                         goto fail_device;
 443
 444                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 445         }
 446
 447         ret = nouveau_ttm_init(drm);
 448         if (ret)
 449                 goto fail_ttm;
 450
 451         ret = nouveau_bios_init(dev);
 452         if (ret)
 453                 goto fail_bios;
 454
 455         ret = nouveau_display_create(dev);
 456         if (ret)
 457                 goto fail_dispctor;
 458
 459         if (dev->mode_config.num_crtc) {
 460                 ret = nouveau_display_init(dev);
 461                 if (ret)
 462                         goto fail_dispinit;
 463         }
 464
 465         nouveau_sysfs_init(dev);
 466         nouveau_hwmon_init(dev);
 467         nouveau_accel_init(drm);
 468         nouveau_fbcon_init(dev);
 469
 470         if (nouveau_runtime_pm != 0) {
 471                 pm_runtime_use_autosuspend(dev->dev);
 472                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 473                 pm_runtime_set_active(dev->dev);
 474                 pm_runtime_allow(dev->dev);
 475                 pm_runtime_mark_last_busy(dev->dev);
 476                 pm_runtime_put(dev->dev);
 477         }
 478         return 0;
 479
 480 fail_dispinit:
 481         nouveau_display_destroy(dev);
 482 fail_dispctor:
 483         nouveau_bios_takedown(dev);
 484 fail_bios:
 485         nouveau_ttm_fini(drm);
 486 fail_ttm:
 487         nouveau_agp_fini(drm);
 488         nouveau_vga_fini(drm);
 489 fail_device:
 490         nvif_device_fini(&drm->device);
 491         nouveau_cli_destroy(&drm->client);
 492         return ret;
 493 }
 494
 495 static int
 496 nouveau_drm_unload(struct drm_device *dev)
 497 {
 498         struct nouveau_drm *drm = nouveau_drm(dev);
 499
 500         pm_runtime_get_sync(dev->dev);
 501         nouveau_fbcon_fini(dev);
 502         nouveau_accel_fini(drm);
 503         nouveau_hwmon_fini(dev);
 504         nouveau_sysfs_fini(dev);
 505
 506         if (dev->mode_config.num_crtc)
 507                 nouveau_display_fini(dev);
 508         nouveau_display_destroy(dev);
 509
 510         nouveau_bios_takedown(dev);
 511
 512         nouveau_ttm_fini(drm);
 513         nouveau_agp_fini(drm);
 514         nouveau_vga_fini(drm);
 515
 516         nvif_device_fini(&drm->device);
 517         if (drm->hdmi_device)
 518                 pci_dev_put(drm->hdmi_device);
 519         nouveau_cli_destroy(&drm->client);
 520         return 0;
 521 }
 522
 523 void
 524 nouveau_drm_device_remove(struct drm_device *dev)
 525 {
 526         struct nouveau_drm *drm = nouveau_drm(dev);
 527         struct nvkm_client *client;
 528         struct nvkm_object *device;
 529
 530         dev->irq_enabled = false;
 531         client = nvxx_client(&drm->client.base);
 532         device = client->device;
 533         drm_put_dev(dev);
 534
 535         nvkm_object_ref(NULL, &device);
 536         nvkm_object_debug();
 537 }
 538
 539 static void
 540 nouveau_drm_remove(struct pci_dev *pdev)
 541 {
 542         struct drm_device *dev = pci_get_drvdata(pdev);
 543
 544         nouveau_drm_device_remove(dev);
 545 }
 546
 547 static int
 548 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 549 {
 550         struct nouveau_drm *drm = nouveau_drm(dev);
 551         struct nouveau_cli *cli;
 552         int ret;
 553
 554         if (dev->mode_config.num_crtc) {
 555                 NV_INFO(drm, "suspending console...\n");
 556                 nouveau_fbcon_set_suspend(dev, 1);
 557                 NV_INFO(drm, "suspending display...\n");
 558                 ret = nouveau_display_suspend(dev, runtime);
 559                 if (ret)
 560                         return ret;
 561         }
 562
 563         NV_INFO(drm, "evicting buffers...\n");
 564         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 565
 566         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 567         if (drm->cechan) {
 568                 ret = nouveau_channel_idle(drm->cechan);
 569                 if (ret)
 570                         goto fail_display;
 571         }
 572
 573         if (drm->channel) {
 574                 ret = nouveau_channel_idle(drm->channel);
 575                 if (ret)
 576                         goto fail_display;
 577         }
 578
 579         NV_INFO(drm, "suspending client object trees...\n");
 580         if (drm->fence && nouveau_fence(drm)->suspend) {
 581                 if (!nouveau_fence(drm)->suspend(drm)) {
 582                         ret = -ENOMEM;
 583                         goto fail_display;
 584                 }
 585         }
 586
 587         list_for_each_entry(cli, &drm->clients, head) {
 588                 ret = nvif_client_suspend(&cli->base);
 589                 if (ret)
 590                         goto fail_client;
 591         }
 592
 593         NV_INFO(drm, "suspending kernel object tree...\n");
 594         ret = nvif_client_suspend(&drm->client.base);
 595         if (ret)
 596                 goto fail_client;
 597
 598         nouveau_agp_fini(drm);
 599         return 0;
 600
 601 fail_client:
 602         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 603                 nvif_client_resume(&cli->base);
 604         }
 605
 606         if (drm->fence && nouveau_fence(drm)->resume)
 607                 nouveau_fence(drm)->resume(drm);
 608
 609 fail_display:
 610         if (dev->mode_config.num_crtc) {
 611                 NV_INFO(drm, "resuming display...\n");
 612                 nouveau_display_resume(dev, runtime);
 613         }
 614         return ret;
 615 }
 616
 617 static int
 618 nouveau_do_resume(struct drm_device *dev, bool runtime)
 619 {
 620         struct nouveau_drm *drm = nouveau_drm(dev);
 621         struct nouveau_cli *cli;
 622
 623         NV_INFO(drm, "re-enabling device...\n");
 624
 625         nouveau_agp_reset(drm);
 626
 627         NV_INFO(drm, "resuming kernel object tree...\n");
 628         nvif_client_resume(&drm->client.base);
 629         nouveau_agp_init(drm);
 630
 631         NV_INFO(drm, "resuming client object trees...\n");
 632         if (drm->fence && nouveau_fence(drm)->resume)
 633                 nouveau_fence(drm)->resume(drm);
 634
 635         list_for_each_entry(cli, &drm->clients, head) {
 636                 nvif_client_resume(&cli->base);
 637         }
 638
 639         nouveau_run_vbios_init(dev);
 640
 641         if (dev->mode_config.num_crtc) {
 642                 NV_INFO(drm, "resuming display...\n");
 643                 nouveau_display_resume(dev, runtime);
 644                 NV_INFO(drm, "resuming console...\n");
 645                 nouveau_fbcon_set_suspend(dev, 0);
 646         }
 647
 648         return 0;
 649 }
 650
 651 int
 652 nouveau_pmops_suspend(struct device *dev)
 653 {
 654         struct pci_dev *pdev = to_pci_dev(dev);
 655         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 656         int ret;
 657
 658         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 659             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 660                 return 0;
 661
 662         ret = nouveau_do_suspend(drm_dev, false);
 663         if (ret)
 664                 return ret;
 665
 666         pci_save_state(pdev);
 667         pci_disable_device(pdev);
 668         pci_set_power_state(pdev, PCI_D3hot);
 669         return 0;
 670 }
 671
 672 int
 673 nouveau_pmops_resume(struct device *dev)
 674 {
 675         struct pci_dev *pdev = to_pci_dev(dev);
 676         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 677         int ret;
 678
 679         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 680             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 681                 return 0;
 682
 683         pci_set_power_state(pdev, PCI_D0);
 684         pci_restore_state(pdev);
 685         ret = pci_enable_device(pdev);
 686         if (ret)
 687                 return ret;
 688         pci_set_master(pdev);
 689
 690         return nouveau_do_resume(drm_dev, false);
 691 }
 692
 693 static int
 694 nouveau_pmops_freeze(struct device *dev)
 695 {
 696         struct pci_dev *pdev = to_pci_dev(dev);
 697         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 698         return nouveau_do_suspend(drm_dev, false);
 699 }
 700
 701 static int
 702 nouveau_pmops_thaw(struct device *dev)
 703 {
 704         struct pci_dev *pdev = to_pci_dev(dev);
 705         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 706         return nouveau_do_resume(drm_dev, false);
 707 }
 708
 709 static int
 710 nouveau_pmops_runtime_suspend(struct device *dev)
 711 {
 712         struct pci_dev *pdev = to_pci_dev(dev);
 713         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 714         int ret;
 715
 716         if (nouveau_runtime_pm == 0) {
 717                 pm_runtime_forbid(dev);
 718                 return -EBUSY;
 719         }
 720
 721         /* are we optimus enabled? */
 722         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 723                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 724                 pm_runtime_forbid(dev);
 725                 return -EBUSY;
 726         }
 727
 728         nv_debug_level(SILENT);
 729         drm_kms_helper_poll_disable(drm_dev);
 730         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 731         nouveau_switcheroo_optimus_dsm();
 732         ret = nouveau_do_suspend(drm_dev, true);
 733         pci_save_state(pdev);
 734         pci_disable_device(pdev);
 735         pci_ignore_hotplug(pdev);
 736         pci_set_power_state(pdev, PCI_D3cold);
 737         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 738         return ret;
 739 }
 740
 741 static int
 742 nouveau_pmops_runtime_resume(struct device *dev)
 743 {
 744         struct pci_dev *pdev = to_pci_dev(dev);
 745         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 746         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 747         int ret;
 748
 749         if (nouveau_runtime_pm == 0)
 750                 return -EINVAL;
 751
 752         pci_set_power_state(pdev, PCI_D0);
 753         pci_restore_state(pdev);
 754         ret = pci_enable_device(pdev);
 755         if (ret)
 756                 return ret;
 757         pci_set_master(pdev);
 758
 759         ret = nouveau_do_resume(drm_dev, true);
 760         drm_kms_helper_poll_enable(drm_dev);
 761         /* do magic */
 762         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
 763         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 764         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 765         nv_debug_level(NORMAL);
 766         return ret;
 767 }
 768
 769 static int
 770 nouveau_pmops_runtime_idle(struct device *dev)
 771 {
 772         struct pci_dev *pdev = to_pci_dev(dev);
 773         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 774         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 775         struct drm_crtc *crtc;
 776
 777         if (nouveau_runtime_pm == 0) {
 778                 pm_runtime_forbid(dev);
 779                 return -EBUSY;
 780         }
 781
 782         /* are we optimus enabled? */
 783         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 784                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 785                 pm_runtime_forbid(dev);
 786                 return -EBUSY;
 787         }
 788
 789         /* if we have a hdmi audio device - make sure it has a driver loaded */
 790         if (drm->hdmi_device) {
 791                 if (!drm->hdmi_device->driver) {
 792                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 793                         pm_runtime_mark_last_busy(dev);
 794                         return -EBUSY;
 795                 }
 796         }
 797
 798         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 799                 if (crtc->enabled) {
 800                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 801                         return -EBUSY;
 802                 }
 803         }
 804         pm_runtime_mark_last_busy(dev);
 805         pm_runtime_autosuspend(dev);
 806         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 807         return 1;
 808 }
 809
 810 static int
 811 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 812 {
 813         struct nouveau_drm *drm = nouveau_drm(dev);
 814         struct nouveau_cli *cli;
 815         char name[32], tmpname[TASK_COMM_LEN];
 816         int ret;
 817
 818         /* need to bring up power immediately if opening device */
 819         ret = pm_runtime_get_sync(dev->dev);
 820         if (ret < 0 && ret != -EACCES)
 821                 return ret;
 822
 823         get_task_comm(tmpname, current);
 824         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 825
 826         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
 827                         (void **)&cli);
 828
 829         if (ret)
 830                 goto out_suspend;
 831
 832         cli->base.super = false;
 833
 834         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 835                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 836                                   0x1000, &cli->vm);
 837                 if (ret) {
 838                         nouveau_cli_destroy(cli);
 839                         goto out_suspend;
 840                 }
 841
 842                 nvxx_client(&cli->base)->vm = cli->vm;
 843         }
 844
 845         fpriv->driver_priv = cli;
 846
 847         mutex_lock(&drm->client.mutex);
 848         list_add(&cli->head, &drm->clients);
 849         mutex_unlock(&drm->client.mutex);
 850
 851 out_suspend:
 852         pm_runtime_mark_last_busy(dev->dev);
 853         pm_runtime_put_autosuspend(dev->dev);
 854
 855         return ret;
 856 }
 857
 858 static void
 859 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 860 {
 861         struct nouveau_cli *cli = nouveau_cli(fpriv);
 862         struct nouveau_drm *drm = nouveau_drm(dev);
 863
 864         pm_runtime_get_sync(dev->dev);
 865
 866         mutex_lock(&cli->mutex);
 867         if (cli->abi16)
 868                 nouveau_abi16_fini(cli->abi16);
 869         mutex_unlock(&cli->mutex);
 870
 871         mutex_lock(&drm->client.mutex);
 872         list_del(&cli->head);
 873         mutex_unlock(&drm->client.mutex);
 874
 875 }
 876
 877 static void
 878 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 879 {
 880         struct nouveau_cli *cli = nouveau_cli(fpriv);
 881         nouveau_cli_destroy(cli);
 882         pm_runtime_mark_last_busy(dev->dev);
 883         pm_runtime_put_autosuspend(dev->dev);
 884 }
 885
 886 static const struct drm_ioctl_desc
 887 nouveau_ioctls[] = {
 888         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 889         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 890         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 891         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 892         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 893         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 894         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 895         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 896         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 897         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 898         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 899         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 900 };
 901
 902 long
 903 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 904 {
 905         struct drm_file *filp = file->private_data;
 906         struct drm_device *dev = filp->minor->dev;
 907         long ret;
 908
 909         ret = pm_runtime_get_sync(dev->dev);
 910         if (ret < 0 && ret != -EACCES)
 911                 return ret;
 912
 913         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 914         case DRM_NOUVEAU_NVIF:
 915                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 916                 break;
 917         default:
 918                 ret = drm_ioctl(file, cmd, arg);
 919                 break;
 920         }
 921
 922         pm_runtime_mark_last_busy(dev->dev);
 923         pm_runtime_put_autosuspend(dev->dev);
 924         return ret;
 925 }
 926
 927 static const struct file_operations
 928 nouveau_driver_fops = {
 929         .owner = THIS_MODULE,
 930         .open = drm_open,
 931         .release = drm_release,
 932         .unlocked_ioctl = nouveau_drm_ioctl,
 933         .mmap = nouveau_ttm_mmap,
 934         .poll = drm_poll,
 935         .read = drm_read,
 936 #if defined(CONFIG_COMPAT)
 937         .compat_ioctl = nouveau_compat_ioctl,
 938 #endif
 939         .llseek = noop_llseek,
 940 };
 941
 942 static struct drm_driver
 943 driver_stub = {
 944         .driver_features =
 945                 DRIVER_USE_AGP |
 946                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
 947
 948         .load = nouveau_drm_load,
 949         .unload = nouveau_drm_unload,
 950         .open = nouveau_drm_open,
 951         .preclose = nouveau_drm_preclose,
 952         .postclose = nouveau_drm_postclose,
 953         .lastclose = nouveau_vga_lastclose,
 954
 955 #if defined(CONFIG_DEBUG_FS)
 956         .debugfs_init = nouveau_debugfs_init,
 957         .debugfs_cleanup = nouveau_debugfs_takedown,
 958 #endif
 959
 960         .get_vblank_counter = drm_vblank_count,
 961         .enable_vblank = nouveau_display_vblank_enable,
 962         .disable_vblank = nouveau_display_vblank_disable,
 963         .get_scanout_position = nouveau_display_scanoutpos,
 964         .get_vblank_timestamp = nouveau_display_vblstamp,
 965
 966         .ioctls = nouveau_ioctls,
 967         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 968         .fops = &nouveau_driver_fops,
 969
 970         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 971         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 972         .gem_prime_export = drm_gem_prime_export,
 973         .gem_prime_import = drm_gem_prime_import,
 974         .gem_prime_pin = nouveau_gem_prime_pin,
 975         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 976         .gem_prime_unpin = nouveau_gem_prime_unpin,
 977         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 978         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 979         .gem_prime_vmap = nouveau_gem_prime_vmap,
 980         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 981
 982         .gem_free_object = nouveau_gem_object_del,
 983         .gem_open_object = nouveau_gem_object_open,
 984         .gem_close_object = nouveau_gem_object_close,
 985
 986         .dumb_create = nouveau_display_dumb_create,
 987         .dumb_map_offset = nouveau_display_dumb_map_offset,
 988         .dumb_destroy = drm_gem_dumb_destroy,
 989
 990         .name = DRIVER_NAME,
 991         .desc = DRIVER_DESC,
 992 #ifdef GIT_REVISION
 993         .date = GIT_REVISION,
 994 #else
 995         .date = DRIVER_DATE,
 996 #endif
 997         .major = DRIVER_MAJOR,
 998         .minor = DRIVER_MINOR,
 999         .patchlevel = DRIVER_PATCHLEVEL,
1000 };
1001
1002 static struct pci_device_id
1003 nouveau_drm_pci_table[] = {
1004         {
1005                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1006                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1007                 .class_mask  = 0xff << 16,
1008         },
1009         {
1010                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1011                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1012                 .class_mask  = 0xff << 16,
1013         },
1014         {}
1015 };
1016
1017 static void nouveau_display_options(void)
1018 {
1019         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1020
1021         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1022         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1023         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1024         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1025         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1026         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1027         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1028         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1029         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1030         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1031         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1032 }
1033
1034 static const struct dev_pm_ops nouveau_pm_ops = {
1035         .suspend = nouveau_pmops_suspend,
1036         .resume = nouveau_pmops_resume,
1037         .freeze = nouveau_pmops_freeze,
1038         .thaw = nouveau_pmops_thaw,
1039         .poweroff = nouveau_pmops_freeze,
1040         .restore = nouveau_pmops_resume,
1041         .runtime_suspend = nouveau_pmops_runtime_suspend,
1042         .runtime_resume = nouveau_pmops_runtime_resume,
1043         .runtime_idle = nouveau_pmops_runtime_idle,
1044 };
1045
1046 static struct pci_driver
1047 nouveau_drm_pci_driver = {
1048         .name = "nouveau",
1049         .id_table = nouveau_drm_pci_table,
1050         .probe = nouveau_drm_probe,
1051         .remove = nouveau_drm_remove,
1052         .driver.pm = &nouveau_pm_ops,
1053 };
1054
1055 struct drm_device *
1056 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1057                                 void **pobject)
1058 {
1059         struct drm_device *drm;
1060         int err;
1061
1062         err = nvkm_device_create_(pdev, NVKM_BUS_PLATFORM,
1063                                   nouveau_platform_name(pdev),
1064                                   dev_name(&pdev->dev), nouveau_config,
1065                                   nouveau_debug, size, pobject);
1066         if (err)
1067                 return ERR_PTR(err);
1068
1069         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1070         if (!drm) {
1071                 err = -ENOMEM;
1072                 goto err_free;
1073         }
1074
1075         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1076         if (err < 0)
1077                 goto err_free;
1078
1079         drm->platformdev = pdev;
1080         platform_set_drvdata(pdev, drm);
1081
1082         return drm;
1083
1084 err_free:
1085         nvkm_object_ref(NULL, (struct nvkm_object **)pobject);
1086
1087         return ERR_PTR(err);
1088 }
1089
1090 static int __init
1091 nouveau_drm_init(void)
1092 {
1093         driver_pci = driver_stub;
1094         driver_pci.set_busid = drm_pci_set_busid;
1095         driver_platform = driver_stub;
1096         driver_platform.set_busid = drm_platform_set_busid;
1097
1098         nouveau_display_options();
1099
1100         if (nouveau_modeset == -1) {
1101 #ifdef CONFIG_VGA_CONSOLE
1102                 if (vgacon_text_force())
1103                         nouveau_modeset = 0;
1104 #endif
1105         }
1106
1107         if (!nouveau_modeset)
1108                 return 0;
1109
1110 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1111         platform_driver_register(&nouveau_platform_driver);
1112 #endif
1113
1114         nouveau_register_dsm_handler();
1115         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1116 }
1117
1118 static void __exit
1119 nouveau_drm_exit(void)
1120 {
1121         if (!nouveau_modeset)
1122                 return;
1123
1124         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1125         nouveau_unregister_dsm_handler();
1126
1127 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1128         platform_driver_unregister(&nouveau_platform_driver);
1129 #endif
1130 }
1131
1132 module_init(nouveau_drm_init);
1133 module_exit(nouveau_drm_exit);
1134
1135 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1136 MODULE_AUTHOR(DRIVER_AUTHOR);
1137 MODULE_DESCRIPTION(DRIVER_DESC);
1138 MODULE_LICENSE("GPL and additional rights");