drivers/gpu/drm/nouveau/nouveau_drv.c

   1 /*
   2  * Copyright 2005 Stephane Marchesin.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include <linux/console.h>
  26 #include <linux/module.h>
  27
  28 #include <drm/drmP.h>
  29 #include <drm/drm_crtc_helper.h>
  30 #include "nouveau_drv.h"
  31 #include "nouveau_abi16.h"
  32 #include "nouveau_hw.h"
  33 #include "nouveau_fb.h"
  34 #include "nouveau_fbcon.h"
  35 #include "nouveau_pm.h"
  36 #include "nouveau_fifo.h"
  37 #include "nv50_display.h"
  38
  39 #include <drm/drm_pciids.h>
  40
  41 MODULE_PARM_DESC(agpmode, "AGP mode (0 to disable AGP)");
  42 int nouveau_agpmode = -1;
  43 module_param_named(agpmode, nouveau_agpmode, int, 0400);
  44
  45 MODULE_PARM_DESC(modeset, "Enable kernel modesetting");
  46 int nouveau_modeset = -1;
  47 module_param_named(modeset, nouveau_modeset, int, 0400);
  48
  49 MODULE_PARM_DESC(vbios, "Override default VBIOS location");
  50 char *nouveau_vbios;
  51 module_param_named(vbios, nouveau_vbios, charp, 0400);
  52
  53 MODULE_PARM_DESC(vram_pushbuf, "Force DMA push buffers to be in VRAM");
  54 int nouveau_vram_pushbuf;
  55 module_param_named(vram_pushbuf, nouveau_vram_pushbuf, int, 0400);
  56
  57 MODULE_PARM_DESC(vram_notify, "Force DMA notifiers to be in VRAM");
  58 int nouveau_vram_notify = 0;
  59 module_param_named(vram_notify, nouveau_vram_notify, int, 0400);
  60
  61 MODULE_PARM_DESC(vram_type, "Override detected VRAM type");
  62 char *nouveau_vram_type;
  63 module_param_named(vram_type, nouveau_vram_type, charp, 0400);
  64
  65 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (>=GeForce 8)");
  66 int nouveau_duallink = 1;
  67 module_param_named(duallink, nouveau_duallink, int, 0400);
  68
  69 MODULE_PARM_DESC(uscript_lvds, "LVDS output script table ID (>=GeForce 8)");
  70 int nouveau_uscript_lvds = -1;
  71 module_param_named(uscript_lvds, nouveau_uscript_lvds, int, 0400);
  72
  73 MODULE_PARM_DESC(uscript_tmds, "TMDS output script table ID (>=GeForce 8)");
  74 int nouveau_uscript_tmds = -1;
  75 module_param_named(uscript_tmds, nouveau_uscript_tmds, int, 0400);
  76
  77 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
  78 int nouveau_ignorelid = 0;
  79 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
  80
  81 MODULE_PARM_DESC(noaccel, "Disable all acceleration");
  82 int nouveau_noaccel = -1;
  83 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  84
  85 MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
  86 int nouveau_nofbaccel = 0;
  87 module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);
  88
  89 MODULE_PARM_DESC(force_post, "Force POST");
  90 int nouveau_force_post = 0;
  91 module_param_named(force_post, nouveau_force_post, int, 0400);
  92
  93 MODULE_PARM_DESC(override_conntype, "Ignore DCB connector type");
  94 int nouveau_override_conntype = 0;
  95 module_param_named(override_conntype, nouveau_override_conntype, int, 0400);
  96
  97 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
  98 int nouveau_tv_disable = 0;
  99 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 100
 101 MODULE_PARM_DESC(tv_norm, "Default TV norm.\n"
 102                  "\t\tSupported: PAL, PAL-M, PAL-N, PAL-Nc, NTSC-M, NTSC-J,\n"
 103                  "\t\t\thd480i, hd480p, hd576i, hd576p, hd720p, hd1080i.\n"
 104                  "\t\tDefault: PAL\n"
 105                  "\t\t*NOTE* Ignored for cards with external TV encoders.");
 106 char *nouveau_tv_norm;
 107 module_param_named(tv_norm, nouveau_tv_norm, charp, 0400);
 108
 109 MODULE_PARM_DESC(reg_debug, "Register access debug bitmask:\n"
 110                 "\t\t0x1 mc, 0x2 video, 0x4 fb, 0x8 extdev,\n"
 111                 "\t\t0x10 crtc, 0x20 ramdac, 0x40 vgacrtc, 0x80 rmvio,\n"
 112                 "\t\t0x100 vgaattr, 0x200 EVO (G80+)");
 113 int nouveau_reg_debug;
 114 module_param_named(reg_debug, nouveau_reg_debug, int, 0600);
 115
 116 MODULE_PARM_DESC(perflvl, "Performance level (default: boot)");
 117 char *nouveau_perflvl;
 118 module_param_named(perflvl, nouveau_perflvl, charp, 0400);
 119
 120 MODULE_PARM_DESC(perflvl_wr, "Allow perflvl changes (warning: dangerous!)");
 121 int nouveau_perflvl_wr;
 122 module_param_named(perflvl_wr, nouveau_perflvl_wr, int, 0400);
 123
 124 MODULE_PARM_DESC(msi, "Enable MSI (default: off)");
 125 int nouveau_msi;
 126 module_param_named(msi, nouveau_msi, int, 0400);
 127
 128 MODULE_PARM_DESC(ctxfw, "Use external HUB/GPC ucode (fermi)");
 129 int nouveau_ctxfw;
 130 module_param_named(ctxfw, nouveau_ctxfw, int, 0400);
 131
 132 MODULE_PARM_DESC(mxmdcb, "Santise DCB table according to MXM-SIS");
 133 int nouveau_mxmdcb = 1;
 134 module_param_named(mxmdcb, nouveau_mxmdcb, int, 0400);
 135
 136 int nouveau_fbpercrtc;
 137 #if 0
 138 module_param_named(fbpercrtc, nouveau_fbpercrtc, int, 0400);
 139 #endif
 140
 141 static struct pci_device_id pciidlist[] = {
 142         {
 143                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 144                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 145                 .class_mask  = 0xff << 16,
 146         },
 147         {
 148                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 149                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 150                 .class_mask  = 0xff << 16,
 151         },
 152         {}
 153 };
 154
 155 MODULE_DEVICE_TABLE(pci, pciidlist);
 156
 157 static struct drm_driver driver;
 158
 159 static int __devinit
 160 nouveau_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 161 {
 162         return drm_get_pci_dev(pdev, ent, &driver);
 163 }
 164
 165 static void
 166 nouveau_pci_remove(struct pci_dev *pdev)
 167 {
 168         struct drm_device *dev = pci_get_drvdata(pdev);
 169
 170         drm_put_dev(dev);
 171 }
 172
 173 int
 174 nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
 175 {
 176         struct drm_device *dev = pci_get_drvdata(pdev);
 177         struct drm_nouveau_private *dev_priv = dev->dev_private;
 178         struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
 179         struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO);
 180         struct nouveau_channel *chan;
 181         struct drm_crtc *crtc;
 182         int ret, i, e;
 183
 184         if (pm_state.event == PM_EVENT_PRETHAW)
 185                 return 0;
 186
 187         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 188                 return 0;
 189
 190         NV_INFO(dev, "Disabling display...\n");
 191         nouveau_display_fini(dev);
 192
 193         NV_INFO(dev, "Disabling fbcon...\n");
 194         nouveau_fbcon_set_suspend(dev, 1);
 195
 196         NV_INFO(dev, "Unpinning framebuffer(s)...\n");
 197         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 198                 struct nouveau_framebuffer *nouveau_fb;
 199
 200                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 201                 if (!nouveau_fb || !nouveau_fb->nvbo)
 202                         continue;
 203
 204                 nouveau_bo_unpin(nouveau_fb->nvbo);
 205         }
 206
 207         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 208                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 209
 210                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 211                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 212         }
 213
 214         NV_INFO(dev, "Evicting buffers...\n");
 215         ttm_bo_evict_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM);
 216
 217         NV_INFO(dev, "Idling channels...\n");
 218         for (i = 0; i < (pfifo ? pfifo->channels : 0); i++) {
 219                 chan = dev_priv->channels.ptr[i];
 220
 221                 if (chan && chan->pushbuf_bo)
 222                         nouveau_channel_idle(chan);
 223         }
 224
 225         for (e = NVOBJ_ENGINE_NR - 1; e >= 0; e--) {
 226                 if (!dev_priv->eng[e])
 227                         continue;
 228
 229                 ret = dev_priv->eng[e]->fini(dev, e, true);
 230                 if (ret) {
 231                         NV_ERROR(dev, "... engine %d failed: %d\n", e, ret);
 232                         goto out_abort;
 233                 }
 234         }
 235
 236         ret = pinstmem->suspend(dev);
 237         if (ret) {
 238                 NV_ERROR(dev, "... failed: %d\n", ret);
 239                 goto out_abort;
 240         }
 241
 242         NV_INFO(dev, "Suspending GPU objects...\n");
 243         ret = nouveau_gpuobj_suspend(dev);
 244         if (ret) {
 245                 NV_ERROR(dev, "... failed: %d\n", ret);
 246                 pinstmem->resume(dev);
 247                 goto out_abort;
 248         }
 249
 250         NV_INFO(dev, "And we're gone!\n");
 251         pci_save_state(pdev);
 252         if (pm_state.event == PM_EVENT_SUSPEND) {
 253                 pci_disable_device(pdev);
 254                 pci_set_power_state(pdev, PCI_D3hot);
 255         }
 256
 257         return 0;
 258
 259 out_abort:
 260         NV_INFO(dev, "Re-enabling acceleration..\n");
 261         for (e = e + 1; e < NVOBJ_ENGINE_NR; e++) {
 262                 if (dev_priv->eng[e])
 263                         dev_priv->eng[e]->init(dev, e);
 264         }
 265         return ret;
 266 }
 267
 268 int
 269 nouveau_pci_resume(struct pci_dev *pdev)
 270 {
 271         struct drm_device *dev = pci_get_drvdata(pdev);
 272         struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO);
 273         struct drm_nouveau_private *dev_priv = dev->dev_private;
 274         struct nouveau_engine *engine = &dev_priv->engine;
 275         struct drm_crtc *crtc;
 276         int ret, i;
 277
 278         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 279                 return 0;
 280
 281         NV_INFO(dev, "We're back, enabling device...\n");
 282         pci_set_power_state(pdev, PCI_D0);
 283         pci_restore_state(pdev);
 284         if (pci_enable_device(pdev))
 285                 return -1;
 286         pci_set_master(dev->pdev);
 287
 288         /* Make sure the AGP controller is in a consistent state */
 289         if (dev_priv->gart_info.type == NOUVEAU_GART_AGP)
 290                 nouveau_mem_reset_agp(dev);
 291
 292         /* Make the CRTCs accessible */
 293         engine->display.early_init(dev);
 294
 295         NV_INFO(dev, "POSTing device...\n");
 296         ret = nouveau_run_vbios_init(dev);
 297         if (ret)
 298                 return ret;
 299
 300         if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
 301                 ret = nouveau_mem_init_agp(dev);
 302                 if (ret) {
 303                         NV_ERROR(dev, "error reinitialising AGP: %d\n", ret);
 304                         return ret;
 305                 }
 306         }
 307
 308         NV_INFO(dev, "Restoring GPU objects...\n");
 309         nouveau_gpuobj_resume(dev);
 310
 311         NV_INFO(dev, "Reinitialising engines...\n");
 312         engine->instmem.resume(dev);
 313         engine->mc.init(dev);
 314         engine->timer.init(dev);
 315         engine->fb.init(dev);
 316         for (i = 0; i < NVOBJ_ENGINE_NR; i++) {
 317                 if (dev_priv->eng[i])
 318                         dev_priv->eng[i]->init(dev, i);
 319         }
 320
 321         nouveau_irq_postinstall(dev);
 322
 323         /* Re-write SKIPS, they'll have been lost over the suspend */
 324         if (nouveau_vram_pushbuf) {
 325                 struct nouveau_channel *chan;
 326                 int j;
 327
 328                 for (i = 0; i < (pfifo ? pfifo->channels : 0); i++) {
 329                         chan = dev_priv->channels.ptr[i];
 330                         if (!chan || !chan->pushbuf_bo)
 331                                 continue;
 332
 333                         for (j = 0; j < NOUVEAU_DMA_SKIPS; j++)
 334                                 nouveau_bo_wr32(chan->pushbuf_bo, i, 0);
 335                 }
 336         }
 337
 338         nouveau_pm_resume(dev);
 339
 340         NV_INFO(dev, "Restoring mode...\n");
 341         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 342                 struct nouveau_framebuffer *nouveau_fb;
 343
 344                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 345                 if (!nouveau_fb || !nouveau_fb->nvbo)
 346                         continue;
 347
 348                 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
 349         }
 350
 351         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 352                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 353
 354                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
 355                 if (!ret)
 356                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 357                 if (ret)
 358                         NV_ERROR(dev, "Could not pin/map cursor.\n");
 359         }
 360
 361         nouveau_fbcon_set_suspend(dev, 0);
 362         nouveau_fbcon_zfill_all(dev);
 363
 364         nouveau_display_init(dev);
 365
 366         /* Force CLUT to get re-loaded during modeset */
 367         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 368                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 369
 370                 nv_crtc->lut.depth = 0;
 371         }
 372
 373         drm_helper_resume_force_mode(dev);
 374
 375         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 376                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 377                 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 378
 379                 nv_crtc->cursor.set_offset(nv_crtc, offset);
 380                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 381                                                  nv_crtc->cursor_saved_y);
 382         }
 383
 384         return 0;
 385 }
 386
 387 static struct drm_ioctl_desc nouveau_ioctls[] = {
 388         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH),
 389         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 390         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH),
 391         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH),
 392         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH),
 393         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH),
 394         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH),
 395         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH),
 396         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH),
 397         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH),
 398         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH),
 399         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH),
 400 };
 401
 402 static const struct file_operations nouveau_driver_fops = {
 403         .owner = THIS_MODULE,
 404         .open = drm_open,
 405         .release = drm_release,
 406         .unlocked_ioctl = drm_ioctl,
 407         .mmap = nouveau_ttm_mmap,
 408         .poll = drm_poll,
 409         .fasync = drm_fasync,
 410         .read = drm_read,
 411 #if defined(CONFIG_COMPAT)
 412         .compat_ioctl = nouveau_compat_ioctl,
 413 #endif
 414         .llseek = noop_llseek,
 415 };
 416
 417 static struct drm_driver driver = {
 418         .driver_features =
 419                 DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG |
 420                 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM |
 421                 DRIVER_MODESET | DRIVER_PRIME,
 422         .load = nouveau_load,
 423         .firstopen = nouveau_firstopen,
 424         .lastclose = nouveau_lastclose,
 425         .unload = nouveau_unload,
 426         .open = nouveau_open,
 427         .preclose = nouveau_preclose,
 428         .postclose = nouveau_postclose,
 429 #if defined(CONFIG_DRM_NOUVEAU_DEBUG)
 430         .debugfs_init = nouveau_debugfs_init,
 431         .debugfs_cleanup = nouveau_debugfs_takedown,
 432 #endif
 433         .irq_preinstall = nouveau_irq_preinstall,
 434         .irq_postinstall = nouveau_irq_postinstall,
 435         .irq_uninstall = nouveau_irq_uninstall,
 436         .irq_handler = nouveau_irq_handler,
 437         .get_vblank_counter = drm_vblank_count,
 438         .enable_vblank = nouveau_vblank_enable,
 439         .disable_vblank = nouveau_vblank_disable,
 440         .ioctls = nouveau_ioctls,
 441         .fops = &nouveau_driver_fops,
 442
 443         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 444         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 445         .gem_prime_export = nouveau_gem_prime_export,
 446         .gem_prime_import = nouveau_gem_prime_import,
 447
 448         .gem_init_object = nouveau_gem_object_new,
 449         .gem_free_object = nouveau_gem_object_del,
 450         .gem_open_object = nouveau_gem_object_open,
 451         .gem_close_object = nouveau_gem_object_close,
 452
 453         .dumb_create = nouveau_display_dumb_create,
 454         .dumb_map_offset = nouveau_display_dumb_map_offset,
 455         .dumb_destroy = nouveau_display_dumb_destroy,
 456
 457         .name = DRIVER_NAME,
 458         .desc = DRIVER_DESC,
 459 #ifdef GIT_REVISION
 460         .date = GIT_REVISION,
 461 #else
 462         .date = DRIVER_DATE,
 463 #endif
 464         .major = DRIVER_MAJOR,
 465         .minor = DRIVER_MINOR,
 466         .patchlevel = DRIVER_PATCHLEVEL,
 467 };
 468
 469 static struct pci_driver nouveau_pci_driver = {
 470                 .name = DRIVER_NAME,
 471                 .id_table = pciidlist,
 472                 .probe = nouveau_pci_probe,
 473                 .remove = nouveau_pci_remove,
 474                 .suspend = nouveau_pci_suspend,
 475                 .resume = nouveau_pci_resume
 476 };
 477
 478 static int __init nouveau_init(void)
 479 {
 480         driver.num_ioctls = ARRAY_SIZE(nouveau_ioctls);
 481
 482         if (nouveau_modeset == -1) {
 483 #ifdef CONFIG_VGA_CONSOLE
 484                 if (vgacon_text_force())
 485                         nouveau_modeset = 0;
 486                 else
 487 #endif
 488                         nouveau_modeset = 1;
 489         }
 490
 491         if (!nouveau_modeset)
 492                 return 0;
 493
 494         nouveau_register_dsm_handler();
 495         return drm_pci_init(&driver, &nouveau_pci_driver);
 496 }
 497
 498 static void __exit nouveau_exit(void)
 499 {
 500         if (!nouveau_modeset)
 501                 return;
 502
 503         drm_pci_exit(&driver, &nouveau_pci_driver);
 504         nouveau_unregister_dsm_handler();
 505 }
 506
 507 module_init(nouveau_init);
 508 module_exit(nouveau_exit);
 509
 510 MODULE_AUTHOR(DRIVER_AUTHOR);
 511 MODULE_DESCRIPTION(DRIVER_DESC);
 512 MODULE_LICENSE("GPL and additional rights");