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 <drm/drmP.h>
  33 #include <drm/drm_crtc_helper.h>
  34
  35 #include <core/gpuobj.h>
  36 #include <core/option.h>
  37 #include <core/pci.h>
  38 #include <core/tegra.h>
  39
  40 #include <nvif/driver.h>
  41 #include <nvif/fifo.h>
  42 #include <nvif/user.h>
  43
  44 #include <nvif/class.h>
  45 #include <nvif/cl0002.h>
  46 #include <nvif/cla06f.h>
  47 #include <nvif/if0004.h>
  48
  49 #include "nouveau_drv.h"
  50 #include "nouveau_dma.h"
  51 #include "nouveau_ttm.h"
  52 #include "nouveau_gem.h"
  53 #include "nouveau_vga.h"
  54 #include "nouveau_led.h"
  55 #include "nouveau_hwmon.h"
  56 #include "nouveau_acpi.h"
  57 #include "nouveau_bios.h"
  58 #include "nouveau_ioctl.h"
  59 #include "nouveau_abi16.h"
  60 #include "nouveau_fbcon.h"
  61 #include "nouveau_fence.h"
  62 #include "nouveau_debugfs.h"
  63 #include "nouveau_usif.h"
  64 #include "nouveau_connector.h"
  65 #include "nouveau_platform.h"
  66
  67 MODULE_PARM_DESC(config, "option string to pass to driver core");
  68 static char *nouveau_config;
  69 module_param_named(config, nouveau_config, charp, 0400);
  70
  71 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  72 static char *nouveau_debug;
  73 module_param_named(debug, nouveau_debug, charp, 0400);
  74
  75 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  76 static int nouveau_noaccel = 0;
  77 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  78
  79 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  80                           "0 = disabled, 1 = enabled, 2 = headless)");
  81 int nouveau_modeset = -1;
  82 module_param_named(modeset, nouveau_modeset, int, 0400);
  83
  84 MODULE_PARM_DESC(atomic, "Expose atomic ioctl (default: disabled)");
  85 static int nouveau_atomic = 0;
  86 module_param_named(atomic, nouveau_atomic, int, 0400);
  87
  88 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  89 static int nouveau_runtime_pm = -1;
  90 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  91
  92 static struct drm_driver driver_stub;
  93 static struct drm_driver driver_pci;
  94 static struct drm_driver driver_platform;
  95
  96 static u64
  97 nouveau_pci_name(struct pci_dev *pdev)
  98 {
  99         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 100         name |= pdev->bus->number << 16;
 101         name |= PCI_SLOT(pdev->devfn) << 8;
 102         return name | PCI_FUNC(pdev->devfn);
 103 }
 104
 105 static u64
 106 nouveau_platform_name(struct platform_device *platformdev)
 107 {
 108         return platformdev->id;
 109 }
 110
 111 static u64
 112 nouveau_name(struct drm_device *dev)
 113 {
 114         if (dev->pdev)
 115                 return nouveau_pci_name(dev->pdev);
 116         else
 117                 return nouveau_platform_name(to_platform_device(dev->dev));
 118 }
 119
 120 static inline bool
 121 nouveau_cli_work_ready(struct dma_fence *fence)
 122 {
 123         if (!dma_fence_is_signaled(fence))
 124                 return false;
 125         dma_fence_put(fence);
 126         return true;
 127 }
 128
 129 static void
 130 nouveau_cli_work(struct work_struct *w)
 131 {
 132         struct nouveau_cli *cli = container_of(w, typeof(*cli), work);
 133         struct nouveau_cli_work *work, *wtmp;
 134         mutex_lock(&cli->lock);
 135         list_for_each_entry_safe(work, wtmp, &cli->worker, head) {
 136                 if (!work->fence || nouveau_cli_work_ready(work->fence)) {
 137                         list_del(&work->head);
 138                         work->func(work);
 139                 }
 140         }
 141         mutex_unlock(&cli->lock);
 142 }
 143
 144 static void
 145 nouveau_cli_work_fence(struct dma_fence *fence, struct dma_fence_cb *cb)
 146 {
 147         struct nouveau_cli_work *work = container_of(cb, typeof(*work), cb);
 148         schedule_work(&work->cli->work);
 149 }
 150
 151 void
 152 nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence,
 153                        struct nouveau_cli_work *work)
 154 {
 155         work->fence = dma_fence_get(fence);
 156         work->cli = cli;
 157         mutex_lock(&cli->lock);
 158         list_add_tail(&work->head, &cli->worker);
 159         if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence))
 160                 nouveau_cli_work_fence(fence, &work->cb);
 161         mutex_unlock(&cli->lock);
 162 }
 163
 164 static void
 165 nouveau_cli_fini(struct nouveau_cli *cli)
 166 {
 167         /* All our channels are dead now, which means all the fences they
 168          * own are signalled, and all callback functions have been called.
 169          *
 170          * So, after flushing the workqueue, there should be nothing left.
 171          */
 172         flush_work(&cli->work);
 173         WARN_ON(!list_empty(&cli->worker));
 174
 175         usif_client_fini(cli);
 176         nouveau_vmm_fini(&cli->vmm);
 177         nvif_mmu_fini(&cli->mmu);
 178         nvif_device_fini(&cli->device);
 179         mutex_lock(&cli->drm->master.lock);
 180         nvif_client_fini(&cli->base);
 181         mutex_unlock(&cli->drm->master.lock);
 182 }
 183
 184 static int
 185 nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 186                  struct nouveau_cli *cli)
 187 {
 188         static const struct nvif_mclass
 189         mems[] = {
 190                 { NVIF_CLASS_MEM_GF100, -1 },
 191                 { NVIF_CLASS_MEM_NV50 , -1 },
 192                 { NVIF_CLASS_MEM_NV04 , -1 },
 193                 {}
 194         };
 195         static const struct nvif_mclass
 196         mmus[] = {
 197                 { NVIF_CLASS_MMU_GF100, -1 },
 198                 { NVIF_CLASS_MMU_NV50 , -1 },
 199                 { NVIF_CLASS_MMU_NV04 , -1 },
 200                 {}
 201         };
 202         static const struct nvif_mclass
 203         vmms[] = {
 204                 { NVIF_CLASS_VMM_GP100, -1 },
 205                 { NVIF_CLASS_VMM_GM200, -1 },
 206                 { NVIF_CLASS_VMM_GF100, -1 },
 207                 { NVIF_CLASS_VMM_NV50 , -1 },
 208                 { NVIF_CLASS_VMM_NV04 , -1 },
 209                 {}
 210         };
 211         u64 device = nouveau_name(drm->dev);
 212         int ret;
 213
 214         snprintf(cli->name, sizeof(cli->name), "%s", sname);
 215         cli->drm = drm;
 216         mutex_init(&cli->mutex);
 217         usif_client_init(cli);
 218
 219         INIT_WORK(&cli->work, nouveau_cli_work);
 220         INIT_LIST_HEAD(&cli->worker);
 221         mutex_init(&cli->lock);
 222
 223         if (cli == &drm->master) {
 224                 ret = nvif_driver_init(NULL, nouveau_config, nouveau_debug,
 225                                        cli->name, device, &cli->base);
 226         } else {
 227                 mutex_lock(&drm->master.lock);
 228                 ret = nvif_client_init(&drm->master.base, cli->name, device,
 229                                        &cli->base);
 230                 mutex_unlock(&drm->master.lock);
 231         }
 232         if (ret) {
 233                 NV_ERROR(drm, "Client allocation failed: %d\n", ret);
 234                 goto done;
 235         }
 236
 237         ret = nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 238                                &(struct nv_device_v0) {
 239                                         .device = ~0,
 240                                }, sizeof(struct nv_device_v0),
 241                                &cli->device);
 242         if (ret) {
 243                 NV_ERROR(drm, "Device allocation failed: %d\n", ret);
 244                 goto done;
 245         }
 246
 247         ret = nvif_mclass(&cli->device.object, mmus);
 248         if (ret < 0) {
 249                 NV_ERROR(drm, "No supported MMU class\n");
 250                 goto done;
 251         }
 252
 253         ret = nvif_mmu_init(&cli->device.object, mmus[ret].oclass, &cli->mmu);
 254         if (ret) {
 255                 NV_ERROR(drm, "MMU allocation failed: %d\n", ret);
 256                 goto done;
 257         }
 258
 259         ret = nvif_mclass(&cli->mmu.object, vmms);
 260         if (ret < 0) {
 261                 NV_ERROR(drm, "No supported VMM class\n");
 262                 goto done;
 263         }
 264
 265         ret = nouveau_vmm_init(cli, vmms[ret].oclass, &cli->vmm);
 266         if (ret) {
 267                 NV_ERROR(drm, "VMM allocation failed: %d\n", ret);
 268                 goto done;
 269         }
 270
 271         ret = nvif_mclass(&cli->mmu.object, mems);
 272         if (ret < 0) {
 273                 NV_ERROR(drm, "No supported MEM class\n");
 274                 goto done;
 275         }
 276
 277         cli->mem = &mems[ret];
 278         return 0;
 279 done:
 280         if (ret)
 281                 nouveau_cli_fini(cli);
 282         return ret;
 283 }
 284
 285 static void
 286 nouveau_accel_fini(struct nouveau_drm *drm)
 287 {
 288         nouveau_channel_idle(drm->channel);
 289         nvif_object_fini(&drm->ntfy);
 290         nvkm_gpuobj_del(&drm->notify);
 291         nvif_notify_fini(&drm->flip);
 292         nvif_object_fini(&drm->nvsw);
 293         nouveau_channel_del(&drm->channel);
 294
 295         nouveau_channel_idle(drm->cechan);
 296         nvif_object_fini(&drm->ttm.copy);
 297         nouveau_channel_del(&drm->cechan);
 298
 299         if (drm->fence)
 300                 nouveau_fence(drm)->dtor(drm);
 301 }
 302
 303 static void
 304 nouveau_accel_init(struct nouveau_drm *drm)
 305 {
 306         struct nvif_device *device = &drm->client.device;
 307         struct nvif_sclass *sclass;
 308         u32 arg0, arg1;
 309         int ret, i, n;
 310
 311         if (nouveau_noaccel)
 312                 return;
 313
 314         ret = nouveau_channels_init(drm);
 315         if (ret)
 316                 return;
 317
 318         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_VOLTA) {
 319                 ret = nvif_user_init(device);
 320                 if (ret)
 321                         return;
 322         }
 323
 324         /* initialise synchronisation routines */
 325         /*XXX: this is crap, but the fence/channel stuff is a little
 326          *     backwards in some places.  this will be fixed.
 327          */
 328         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 329         if (ret < 0)
 330                 return;
 331
 332         for (ret = -ENOSYS, i = 0; i < n; i++) {
 333                 switch (sclass[i].oclass) {
 334                 case NV03_CHANNEL_DMA:
 335                         ret = nv04_fence_create(drm);
 336                         break;
 337                 case NV10_CHANNEL_DMA:
 338                         ret = nv10_fence_create(drm);
 339                         break;
 340                 case NV17_CHANNEL_DMA:
 341                 case NV40_CHANNEL_DMA:
 342                         ret = nv17_fence_create(drm);
 343                         break;
 344                 case NV50_CHANNEL_GPFIFO:
 345                         ret = nv50_fence_create(drm);
 346                         break;
 347                 case G82_CHANNEL_GPFIFO:
 348                         ret = nv84_fence_create(drm);
 349                         break;
 350                 case FERMI_CHANNEL_GPFIFO:
 351                 case KEPLER_CHANNEL_GPFIFO_A:
 352                 case KEPLER_CHANNEL_GPFIFO_B:
 353                 case MAXWELL_CHANNEL_GPFIFO_A:
 354                 case PASCAL_CHANNEL_GPFIFO_A:
 355                 case VOLTA_CHANNEL_GPFIFO_A:
 356                         ret = nvc0_fence_create(drm);
 357                         break;
 358                 default:
 359                         break;
 360                 }
 361         }
 362
 363         nvif_object_sclass_put(&sclass);
 364         if (ret) {
 365                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 366                 nouveau_accel_fini(drm);
 367                 return;
 368         }
 369
 370         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 371                 ret = nouveau_channel_new(drm, &drm->client.device,
 372                                           nvif_fifo_runlist_ce(device), 0,
 373                                           &drm->cechan);
 374                 if (ret)
 375                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 376
 377                 arg0 = nvif_fifo_runlist(device, NV_DEVICE_INFO_ENGINE_GR);
 378                 arg1 = 1;
 379         } else
 380         if (device->info.chipset >= 0xa3 &&
 381             device->info.chipset != 0xaa &&
 382             device->info.chipset != 0xac) {
 383                 ret = nouveau_channel_new(drm, &drm->client.device,
 384                                           NvDmaFB, NvDmaTT, &drm->cechan);
 385                 if (ret)
 386                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 387
 388                 arg0 = NvDmaFB;
 389                 arg1 = NvDmaTT;
 390         } else {
 391                 arg0 = NvDmaFB;
 392                 arg1 = NvDmaTT;
 393         }
 394
 395         ret = nouveau_channel_new(drm, &drm->client.device,
 396                                   arg0, arg1, &drm->channel);
 397         if (ret) {
 398                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 399                 nouveau_accel_fini(drm);
 400                 return;
 401         }
 402
 403         if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
 404                 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 405                                        nouveau_abi16_swclass(drm), NULL, 0,
 406                                        &drm->nvsw);
 407                 if (ret == 0) {
 408                         ret = RING_SPACE(drm->channel, 2);
 409                         if (ret == 0) {
 410                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 411                                 OUT_RING  (drm->channel, drm->nvsw.handle);
 412                         }
 413
 414                         ret = nvif_notify_init(&drm->nvsw,
 415                                                nouveau_flip_complete,
 416                                                false, NV04_NVSW_NTFY_UEVENT,
 417                                                NULL, 0, 0, &drm->flip);
 418                         if (ret == 0)
 419                                 ret = nvif_notify_get(&drm->flip);
 420                         if (ret) {
 421                                 nouveau_accel_fini(drm);
 422                                 return;
 423                         }
 424                 }
 425
 426                 if (ret) {
 427                         NV_ERROR(drm, "failed to allocate sw class, %d\n", ret);
 428                         nouveau_accel_fini(drm);
 429                         return;
 430                 }
 431         }
 432
 433         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 434                 ret = nvkm_gpuobj_new(nvxx_device(&drm->client.device), 32, 0,
 435                                       false, NULL, &drm->notify);
 436                 if (ret) {
 437                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 438                         nouveau_accel_fini(drm);
 439                         return;
 440                 }
 441
 442                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 443                                        NV_DMA_IN_MEMORY,
 444                                        &(struct nv_dma_v0) {
 445                                                 .target = NV_DMA_V0_TARGET_VRAM,
 446                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 447                                                 .start = drm->notify->addr,
 448                                                 .limit = drm->notify->addr + 31
 449                                        }, sizeof(struct nv_dma_v0),
 450                                        &drm->ntfy);
 451                 if (ret) {
 452                         nouveau_accel_fini(drm);
 453                         return;
 454                 }
 455         }
 456
 457
 458         nouveau_bo_move_init(drm);
 459 }
 460
 461 static int nouveau_drm_probe(struct pci_dev *pdev,
 462                              const struct pci_device_id *pent)
 463 {
 464         struct nvkm_device *device;
 465         struct apertures_struct *aper;
 466         bool boot = false;
 467         int ret;
 468
 469         if (vga_switcheroo_client_probe_defer(pdev))
 470                 return -EPROBE_DEFER;
 471
 472         /* We need to check that the chipset is supported before booting
 473          * fbdev off the hardware, as there's no way to put it back.
 474          */
 475         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 476         if (ret)
 477                 return ret;
 478
 479         nvkm_device_del(&device);
 480
 481         /* Remove conflicting drivers (vesafb, efifb etc). */
 482         aper = alloc_apertures(3);
 483         if (!aper)
 484                 return -ENOMEM;
 485
 486         aper->ranges[0].base = pci_resource_start(pdev, 1);
 487         aper->ranges[0].size = pci_resource_len(pdev, 1);
 488         aper->count = 1;
 489
 490         if (pci_resource_len(pdev, 2)) {
 491                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 492                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 493                 aper->count++;
 494         }
 495
 496         if (pci_resource_len(pdev, 3)) {
 497                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 498                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 499                 aper->count++;
 500         }
 501
 502 #ifdef CONFIG_X86
 503         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 504 #endif
 505         if (nouveau_modeset != 2)
 506                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 507         kfree(aper);
 508
 509         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 510                                   true, true, ~0ULL, &device);
 511         if (ret)
 512                 return ret;
 513
 514         pci_set_master(pdev);
 515
 516         if (nouveau_atomic)
 517                 driver_pci.driver_features |= DRIVER_ATOMIC;
 518
 519         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 520         if (ret) {
 521                 nvkm_device_del(&device);
 522                 return ret;
 523         }
 524
 525         return 0;
 526 }
 527
 528 static int
 529 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 530 {
 531         struct nouveau_drm *drm;
 532         int ret;
 533
 534         if (!(drm = kzalloc(sizeof(*drm), GFP_KERNEL)))
 535                 return -ENOMEM;
 536         dev->dev_private = drm;
 537         drm->dev = dev;
 538
 539         ret = nouveau_cli_init(drm, "DRM-master", &drm->master);
 540         if (ret)
 541                 return ret;
 542
 543         ret = nouveau_cli_init(drm, "DRM", &drm->client);
 544         if (ret)
 545                 return ret;
 546
 547         dev->irq_enabled = true;
 548
 549         nvxx_client(&drm->client.base)->debug =
 550                 nvkm_dbgopt(nouveau_debug, "DRM");
 551
 552         INIT_LIST_HEAD(&drm->clients);
 553         spin_lock_init(&drm->tile.lock);
 554
 555         /* workaround an odd issue on nvc1 by disabling the device's
 556          * nosnoop capability.  hopefully won't cause issues until a
 557          * better fix is found - assuming there is one...
 558          */
 559         if (drm->client.device.info.chipset == 0xc1)
 560                 nvif_mask(&drm->client.device.object, 0x00088080, 0x00000800, 0x00000000);
 561
 562         nouveau_vga_init(drm);
 563
 564         ret = nouveau_ttm_init(drm);
 565         if (ret)
 566                 goto fail_ttm;
 567
 568         ret = nouveau_bios_init(dev);
 569         if (ret)
 570                 goto fail_bios;
 571
 572         ret = nouveau_display_create(dev);
 573         if (ret)
 574                 goto fail_dispctor;
 575
 576         if (dev->mode_config.num_crtc) {
 577                 ret = nouveau_display_init(dev);
 578                 if (ret)
 579                         goto fail_dispinit;
 580         }
 581
 582         nouveau_debugfs_init(drm);
 583         nouveau_hwmon_init(dev);
 584         nouveau_accel_init(drm);
 585         nouveau_fbcon_init(dev);
 586         nouveau_led_init(dev);
 587
 588         if (nouveau_pmops_runtime()) {
 589                 pm_runtime_use_autosuspend(dev->dev);
 590                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 591                 pm_runtime_set_active(dev->dev);
 592                 pm_runtime_allow(dev->dev);
 593                 pm_runtime_mark_last_busy(dev->dev);
 594                 pm_runtime_put(dev->dev);
 595         } else {
 596                 /* enable polling for external displays */
 597                 drm_kms_helper_poll_enable(dev);
 598         }
 599         return 0;
 600
 601 fail_dispinit:
 602         nouveau_display_destroy(dev);
 603 fail_dispctor:
 604         nouveau_bios_takedown(dev);
 605 fail_bios:
 606         nouveau_ttm_fini(drm);
 607 fail_ttm:
 608         nouveau_vga_fini(drm);
 609         nouveau_cli_fini(&drm->client);
 610         nouveau_cli_fini(&drm->master);
 611         kfree(drm);
 612         return ret;
 613 }
 614
 615 static void
 616 nouveau_drm_unload(struct drm_device *dev)
 617 {
 618         struct nouveau_drm *drm = nouveau_drm(dev);
 619
 620         if (nouveau_pmops_runtime()) {
 621                 pm_runtime_get_sync(dev->dev);
 622                 pm_runtime_forbid(dev->dev);
 623         }
 624
 625         nouveau_led_fini(dev);
 626         nouveau_fbcon_fini(dev);
 627         nouveau_accel_fini(drm);
 628         nouveau_hwmon_fini(dev);
 629         nouveau_debugfs_fini(drm);
 630
 631         if (dev->mode_config.num_crtc)
 632                 nouveau_display_fini(dev, false);
 633         nouveau_display_destroy(dev);
 634
 635         nouveau_bios_takedown(dev);
 636
 637         nouveau_ttm_fini(drm);
 638         nouveau_vga_fini(drm);
 639
 640         nouveau_cli_fini(&drm->client);
 641         nouveau_cli_fini(&drm->master);
 642         kfree(drm);
 643 }
 644
 645 void
 646 nouveau_drm_device_remove(struct drm_device *dev)
 647 {
 648         struct nouveau_drm *drm = nouveau_drm(dev);
 649         struct nvkm_client *client;
 650         struct nvkm_device *device;
 651
 652         dev->irq_enabled = false;
 653         client = nvxx_client(&drm->client.base);
 654         device = nvkm_device_find(client->device);
 655         drm_put_dev(dev);
 656
 657         nvkm_device_del(&device);
 658 }
 659
 660 static void
 661 nouveau_drm_remove(struct pci_dev *pdev)
 662 {
 663         struct drm_device *dev = pci_get_drvdata(pdev);
 664
 665         nouveau_drm_device_remove(dev);
 666 }
 667
 668 static int
 669 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 670 {
 671         struct nouveau_drm *drm = nouveau_drm(dev);
 672         int ret;
 673
 674         nouveau_led_suspend(dev);
 675
 676         if (dev->mode_config.num_crtc) {
 677                 NV_DEBUG(drm, "suspending console...\n");
 678                 nouveau_fbcon_set_suspend(dev, 1);
 679                 NV_DEBUG(drm, "suspending display...\n");
 680                 ret = nouveau_display_suspend(dev, runtime);
 681                 if (ret)
 682                         return ret;
 683         }
 684
 685         NV_DEBUG(drm, "evicting buffers...\n");
 686         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 687
 688         NV_DEBUG(drm, "waiting for kernel channels to go idle...\n");
 689         if (drm->cechan) {
 690                 ret = nouveau_channel_idle(drm->cechan);
 691                 if (ret)
 692                         goto fail_display;
 693         }
 694
 695         if (drm->channel) {
 696                 ret = nouveau_channel_idle(drm->channel);
 697                 if (ret)
 698                         goto fail_display;
 699         }
 700
 701         NV_DEBUG(drm, "suspending fence...\n");
 702         if (drm->fence && nouveau_fence(drm)->suspend) {
 703                 if (!nouveau_fence(drm)->suspend(drm)) {
 704                         ret = -ENOMEM;
 705                         goto fail_display;
 706                 }
 707         }
 708
 709         NV_DEBUG(drm, "suspending object tree...\n");
 710         ret = nvif_client_suspend(&drm->master.base);
 711         if (ret)
 712                 goto fail_client;
 713
 714         return 0;
 715
 716 fail_client:
 717         if (drm->fence && nouveau_fence(drm)->resume)
 718                 nouveau_fence(drm)->resume(drm);
 719
 720 fail_display:
 721         if (dev->mode_config.num_crtc) {
 722                 NV_DEBUG(drm, "resuming display...\n");
 723                 nouveau_display_resume(dev, runtime);
 724         }
 725         return ret;
 726 }
 727
 728 static int
 729 nouveau_do_resume(struct drm_device *dev, bool runtime)
 730 {
 731         struct nouveau_drm *drm = nouveau_drm(dev);
 732
 733         NV_DEBUG(drm, "resuming object tree...\n");
 734         nvif_client_resume(&drm->master.base);
 735
 736         NV_DEBUG(drm, "resuming fence...\n");
 737         if (drm->fence && nouveau_fence(drm)->resume)
 738                 nouveau_fence(drm)->resume(drm);
 739
 740         nouveau_run_vbios_init(dev);
 741
 742         if (dev->mode_config.num_crtc) {
 743                 NV_DEBUG(drm, "resuming display...\n");
 744                 nouveau_display_resume(dev, runtime);
 745                 NV_DEBUG(drm, "resuming console...\n");
 746                 nouveau_fbcon_set_suspend(dev, 0);
 747         }
 748
 749         nouveau_led_resume(dev);
 750
 751         return 0;
 752 }
 753
 754 int
 755 nouveau_pmops_suspend(struct device *dev)
 756 {
 757         struct pci_dev *pdev = to_pci_dev(dev);
 758         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 759         int ret;
 760
 761         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 762             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 763                 return 0;
 764
 765         ret = nouveau_do_suspend(drm_dev, false);
 766         if (ret)
 767                 return ret;
 768
 769         pci_save_state(pdev);
 770         pci_disable_device(pdev);
 771         pci_set_power_state(pdev, PCI_D3hot);
 772         udelay(200);
 773         return 0;
 774 }
 775
 776 int
 777 nouveau_pmops_resume(struct device *dev)
 778 {
 779         struct pci_dev *pdev = to_pci_dev(dev);
 780         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 781         int ret;
 782
 783         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 784             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 785                 return 0;
 786
 787         pci_set_power_state(pdev, PCI_D0);
 788         pci_restore_state(pdev);
 789         ret = pci_enable_device(pdev);
 790         if (ret)
 791                 return ret;
 792         pci_set_master(pdev);
 793
 794         ret = nouveau_do_resume(drm_dev, false);
 795
 796         /* Monitors may have been connected / disconnected during suspend */
 797         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 798
 799         return ret;
 800 }
 801
 802 static int
 803 nouveau_pmops_freeze(struct device *dev)
 804 {
 805         struct pci_dev *pdev = to_pci_dev(dev);
 806         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 807         return nouveau_do_suspend(drm_dev, false);
 808 }
 809
 810 static int
 811 nouveau_pmops_thaw(struct device *dev)
 812 {
 813         struct pci_dev *pdev = to_pci_dev(dev);
 814         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 815         return nouveau_do_resume(drm_dev, false);
 816 }
 817
 818 bool
 819 nouveau_pmops_runtime(void)
 820 {
 821         if (nouveau_runtime_pm == -1)
 822                 return nouveau_is_optimus() || nouveau_is_v1_dsm();
 823         return nouveau_runtime_pm == 1;
 824 }
 825
 826 static int
 827 nouveau_pmops_runtime_suspend(struct device *dev)
 828 {
 829         struct pci_dev *pdev = to_pci_dev(dev);
 830         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 831         int ret;
 832
 833         if (!nouveau_pmops_runtime()) {
 834                 pm_runtime_forbid(dev);
 835                 return -EBUSY;
 836         }
 837
 838         drm_kms_helper_poll_disable(drm_dev);
 839         nouveau_switcheroo_optimus_dsm();
 840         ret = nouveau_do_suspend(drm_dev, true);
 841         pci_save_state(pdev);
 842         pci_disable_device(pdev);
 843         pci_ignore_hotplug(pdev);
 844         pci_set_power_state(pdev, PCI_D3cold);
 845         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 846         return ret;
 847 }
 848
 849 static int
 850 nouveau_pmops_runtime_resume(struct device *dev)
 851 {
 852         struct pci_dev *pdev = to_pci_dev(dev);
 853         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 854         struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
 855         int ret;
 856
 857         if (!nouveau_pmops_runtime()) {
 858                 pm_runtime_forbid(dev);
 859                 return -EBUSY;
 860         }
 861
 862         pci_set_power_state(pdev, PCI_D0);
 863         pci_restore_state(pdev);
 864         ret = pci_enable_device(pdev);
 865         if (ret)
 866                 return ret;
 867         pci_set_master(pdev);
 868
 869         ret = nouveau_do_resume(drm_dev, true);
 870
 871         /* do magic */
 872         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 873         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 874
 875         /* Monitors may have been connected / disconnected during suspend */
 876         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
 877
 878         return ret;
 879 }
 880
 881 static int
 882 nouveau_pmops_runtime_idle(struct device *dev)
 883 {
 884         if (!nouveau_pmops_runtime()) {
 885                 pm_runtime_forbid(dev);
 886                 return -EBUSY;
 887         }
 888
 889         pm_runtime_mark_last_busy(dev);
 890         pm_runtime_autosuspend(dev);
 891         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 892         return 1;
 893 }
 894
 895 static int
 896 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 897 {
 898         struct nouveau_drm *drm = nouveau_drm(dev);
 899         struct nouveau_cli *cli;
 900         char name[32], tmpname[TASK_COMM_LEN];
 901         int ret;
 902
 903         /* need to bring up power immediately if opening device */
 904         ret = pm_runtime_get_sync(dev->dev);
 905         if (ret < 0 && ret != -EACCES)
 906                 return ret;
 907
 908         get_task_comm(tmpname, current);
 909         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 910
 911         if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL)))
 912                 return ret;
 913
 914         ret = nouveau_cli_init(drm, name, cli);
 915         if (ret)
 916                 goto done;
 917
 918         cli->base.super = false;
 919
 920         fpriv->driver_priv = cli;
 921
 922         mutex_lock(&drm->client.mutex);
 923         list_add(&cli->head, &drm->clients);
 924         mutex_unlock(&drm->client.mutex);
 925
 926 done:
 927         if (ret && cli) {
 928                 nouveau_cli_fini(cli);
 929                 kfree(cli);
 930         }
 931
 932         pm_runtime_mark_last_busy(dev->dev);
 933         pm_runtime_put_autosuspend(dev->dev);
 934         return ret;
 935 }
 936
 937 static void
 938 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 939 {
 940         struct nouveau_cli *cli = nouveau_cli(fpriv);
 941         struct nouveau_drm *drm = nouveau_drm(dev);
 942
 943         pm_runtime_get_sync(dev->dev);
 944
 945         mutex_lock(&cli->mutex);
 946         if (cli->abi16)
 947                 nouveau_abi16_fini(cli->abi16);
 948         mutex_unlock(&cli->mutex);
 949
 950         mutex_lock(&drm->client.mutex);
 951         list_del(&cli->head);
 952         mutex_unlock(&drm->client.mutex);
 953
 954         nouveau_cli_fini(cli);
 955         kfree(cli);
 956         pm_runtime_mark_last_busy(dev->dev);
 957         pm_runtime_put_autosuspend(dev->dev);
 958 }
 959
 960 static const struct drm_ioctl_desc
 961 nouveau_ioctls[] = {
 962         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 963         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 964         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 965         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 966         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 967         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 968         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 969         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 970         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 971         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 972         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 973         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 974 };
 975
 976 long
 977 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 978 {
 979         struct drm_file *filp = file->private_data;
 980         struct drm_device *dev = filp->minor->dev;
 981         long ret;
 982
 983         ret = pm_runtime_get_sync(dev->dev);
 984         if (ret < 0 && ret != -EACCES)
 985                 return ret;
 986
 987         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 988         case DRM_NOUVEAU_NVIF:
 989                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 990                 break;
 991         default:
 992                 ret = drm_ioctl(file, cmd, arg);
 993                 break;
 994         }
 995
 996         pm_runtime_mark_last_busy(dev->dev);
 997         pm_runtime_put_autosuspend(dev->dev);
 998         return ret;
 999 }
1000
1001 static const struct file_operations
1002 nouveau_driver_fops = {
1003         .owner = THIS_MODULE,
1004         .open = drm_open,
1005         .release = drm_release,
1006         .unlocked_ioctl = nouveau_drm_ioctl,
1007         .mmap = nouveau_ttm_mmap,
1008         .poll = drm_poll,
1009         .read = drm_read,
1010 #if defined(CONFIG_COMPAT)
1011         .compat_ioctl = nouveau_compat_ioctl,
1012 #endif
1013         .llseek = noop_llseek,
1014 };
1015
1016 static struct drm_driver
1017 driver_stub = {
1018         .driver_features =
1019                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
1020                 DRIVER_KMS_LEGACY_CONTEXT,
1021
1022         .load = nouveau_drm_load,
1023         .unload = nouveau_drm_unload,
1024         .open = nouveau_drm_open,
1025         .postclose = nouveau_drm_postclose,
1026         .lastclose = nouveau_vga_lastclose,
1027
1028 #if defined(CONFIG_DEBUG_FS)
1029         .debugfs_init = nouveau_drm_debugfs_init,
1030 #endif
1031
1032         .enable_vblank = nouveau_display_vblank_enable,
1033         .disable_vblank = nouveau_display_vblank_disable,
1034         .get_scanout_position = nouveau_display_scanoutpos,
1035         .get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos,
1036
1037         .ioctls = nouveau_ioctls,
1038         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
1039         .fops = &nouveau_driver_fops,
1040
1041         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
1042         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
1043         .gem_prime_export = drm_gem_prime_export,
1044         .gem_prime_import = drm_gem_prime_import,
1045         .gem_prime_pin = nouveau_gem_prime_pin,
1046         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
1047         .gem_prime_unpin = nouveau_gem_prime_unpin,
1048         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
1049         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1050         .gem_prime_vmap = nouveau_gem_prime_vmap,
1051         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1052
1053         .gem_free_object_unlocked = nouveau_gem_object_del,
1054         .gem_open_object = nouveau_gem_object_open,
1055         .gem_close_object = nouveau_gem_object_close,
1056
1057         .dumb_create = nouveau_display_dumb_create,
1058         .dumb_map_offset = nouveau_display_dumb_map_offset,
1059
1060         .name = DRIVER_NAME,
1061         .desc = DRIVER_DESC,
1062 #ifdef GIT_REVISION
1063         .date = GIT_REVISION,
1064 #else
1065         .date = DRIVER_DATE,
1066 #endif
1067         .major = DRIVER_MAJOR,
1068         .minor = DRIVER_MINOR,
1069         .patchlevel = DRIVER_PATCHLEVEL,
1070 };
1071
1072 static struct pci_device_id
1073 nouveau_drm_pci_table[] = {
1074         {
1075                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1076                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1077                 .class_mask  = 0xff << 16,
1078         },
1079         {
1080                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1081                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1082                 .class_mask  = 0xff << 16,
1083         },
1084         {}
1085 };
1086
1087 static void nouveau_display_options(void)
1088 {
1089         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1090
1091         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1092         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1093         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1094         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1095         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1096         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1097         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1098         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1099         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1100         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1101         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1102 }
1103
1104 static const struct dev_pm_ops nouveau_pm_ops = {
1105         .suspend = nouveau_pmops_suspend,
1106         .resume = nouveau_pmops_resume,
1107         .freeze = nouveau_pmops_freeze,
1108         .thaw = nouveau_pmops_thaw,
1109         .poweroff = nouveau_pmops_freeze,
1110         .restore = nouveau_pmops_resume,
1111         .runtime_suspend = nouveau_pmops_runtime_suspend,
1112         .runtime_resume = nouveau_pmops_runtime_resume,
1113         .runtime_idle = nouveau_pmops_runtime_idle,
1114 };
1115
1116 static struct pci_driver
1117 nouveau_drm_pci_driver = {
1118         .name = "nouveau",
1119         .id_table = nouveau_drm_pci_table,
1120         .probe = nouveau_drm_probe,
1121         .remove = nouveau_drm_remove,
1122         .driver.pm = &nouveau_pm_ops,
1123 };
1124
1125 struct drm_device *
1126 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1127                                struct platform_device *pdev,
1128                                struct nvkm_device **pdevice)
1129 {
1130         struct drm_device *drm;
1131         int err;
1132
1133         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1134                                     true, true, ~0ULL, pdevice);
1135         if (err)
1136                 goto err_free;
1137
1138         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1139         if (IS_ERR(drm)) {
1140                 err = PTR_ERR(drm);
1141                 goto err_free;
1142         }
1143
1144         platform_set_drvdata(pdev, drm);
1145
1146         return drm;
1147
1148 err_free:
1149         nvkm_device_del(pdevice);
1150
1151         return ERR_PTR(err);
1152 }
1153
1154 static int __init
1155 nouveau_drm_init(void)
1156 {
1157         driver_pci = driver_stub;
1158         driver_platform = driver_stub;
1159
1160         nouveau_display_options();
1161
1162         if (nouveau_modeset == -1) {
1163                 if (vgacon_text_force())
1164                         nouveau_modeset = 0;
1165         }
1166
1167         if (!nouveau_modeset)
1168                 return 0;
1169
1170 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1171         platform_driver_register(&nouveau_platform_driver);
1172 #endif
1173
1174         nouveau_register_dsm_handler();
1175         nouveau_backlight_ctor();
1176
1177 #ifdef CONFIG_PCI
1178         return pci_register_driver(&nouveau_drm_pci_driver);
1179 #else
1180         return 0;
1181 #endif
1182 }
1183
1184 static void __exit
1185 nouveau_drm_exit(void)
1186 {
1187         if (!nouveau_modeset)
1188                 return;
1189
1190 #ifdef CONFIG_PCI
1191         pci_unregister_driver(&nouveau_drm_pci_driver);
1192 #endif
1193         nouveau_backlight_dtor();
1194         nouveau_unregister_dsm_handler();
1195
1196 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1197         platform_driver_unregister(&nouveau_platform_driver);
1198 #endif
1199 }
1200
1201 module_init(nouveau_drm_init);
1202 module_exit(nouveau_drm_exit);
1203
1204 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1205 MODULE_AUTHOR(DRIVER_AUTHOR);
1206 MODULE_DESCRIPTION(DRIVER_DESC);
1207 MODULE_LICENSE("GPL and additional rights");