drivers/gpu/drm/i915/i915_drv.c

   1 /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
   2  */
   3 /*
   4  *
   5  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the
  10  * "Software"), to deal in the Software without restriction, including
  11  * without limitation the rights to use, copy, modify, merge, publish,
  12  * distribute, sub license, and/or sell copies of the Software, and to
  13  * permit persons to whom the Software is furnished to do so, subject to
  14  * the following conditions:
  15  *
  16  * The above copyright notice and this permission notice (including the
  17  * next paragraph) shall be included in all copies or substantial portions
  18  * of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  23  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  24  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  25  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  26  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27  *
  28  */
  29
  30 #include <linux/device.h>
  31 #include "drmP.h"
  32 #include "drm.h"
  33 #include "i915_drm.h"
  34 #include "i915_drv.h"
  35
  36 #include <linux/console.h>
  37 #include "drm_crtc_helper.h"
  38
  39 static int i915_modeset = -1;
  40 module_param_named(modeset, i915_modeset, int, 0400);
  41
  42 unsigned int i915_fbpercrtc = 0;
  43 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
  44
  45 unsigned int i915_powersave = 1;
  46 module_param_named(powersave, i915_powersave, int, 0400);
  47
  48 unsigned int i915_lvds_downclock = 0;
  49 module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
  50
  51 static struct drm_driver driver;
  52 extern int intel_agp_enabled;
  53
  54 #define INTEL_VGA_DEVICE(id, info) {            \
  55         .class = PCI_CLASS_DISPLAY_VGA << 8,    \
  56         .class_mask = 0xffff00,                 \
  57         .vendor = 0x8086,                       \
  58         .device = id,                           \
  59         .subvendor = PCI_ANY_ID,                \
  60         .subdevice = PCI_ANY_ID,                \
  61         .driver_data = (unsigned long) info }
  62
  63 const static struct intel_device_info intel_i830_info = {
  64         .is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
  65 };
  66
  67 const static struct intel_device_info intel_845g_info = {
  68         .is_i8xx = 1,
  69 };
  70
  71 const static struct intel_device_info intel_i85x_info = {
  72         .is_i8xx = 1, .is_i85x = 1, .is_mobile = 1,
  73         .cursor_needs_physical = 1,
  74 };
  75
  76 const static struct intel_device_info intel_i865g_info = {
  77         .is_i8xx = 1,
  78 };
  79
  80 const static struct intel_device_info intel_i915g_info = {
  81         .is_i915g = 1, .is_i9xx = 1, .cursor_needs_physical = 1,
  82 };
  83 const static struct intel_device_info intel_i915gm_info = {
  84         .is_i9xx = 1,  .is_mobile = 1,
  85         .cursor_needs_physical = 1,
  86 };
  87 const static struct intel_device_info intel_i945g_info = {
  88         .is_i9xx = 1, .has_hotplug = 1, .cursor_needs_physical = 1,
  89 };
  90 const static struct intel_device_info intel_i945gm_info = {
  91         .is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1,
  92         .has_hotplug = 1, .cursor_needs_physical = 1,
  93 };
  94
  95 const static struct intel_device_info intel_i965g_info = {
  96         .is_i965g = 1, .is_i9xx = 1, .has_hotplug = 1,
  97 };
  98
  99 const static struct intel_device_info intel_i965gm_info = {
 100         .is_i965g = 1, .is_mobile = 1, .is_i965gm = 1, .is_i9xx = 1,
 101         .is_mobile = 1, .has_fbc = 1, .has_rc6 = 1,
 102         .has_hotplug = 1,
 103 };
 104
 105 const static struct intel_device_info intel_g33_info = {
 106         .is_g33 = 1, .is_i9xx = 1, .need_gfx_hws = 1,
 107         .has_hotplug = 1,
 108 };
 109
 110 const static struct intel_device_info intel_g45_info = {
 111         .is_i965g = 1, .is_g4x = 1, .is_i9xx = 1, .need_gfx_hws = 1,
 112         .has_pipe_cxsr = 1,
 113         .has_hotplug = 1,
 114 };
 115
 116 const static struct intel_device_info intel_gm45_info = {
 117         .is_i965g = 1, .is_mobile = 1, .is_g4x = 1, .is_i9xx = 1,
 118         .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
 119         .has_pipe_cxsr = 1,
 120         .has_hotplug = 1,
 121 };
 122
 123 const static struct intel_device_info intel_pineview_info = {
 124         .is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .is_i9xx = 1,
 125         .need_gfx_hws = 1,
 126         .has_hotplug = 1,
 127 };
 128
 129 const static struct intel_device_info intel_ironlake_d_info = {
 130         .is_ironlake = 1, .is_i965g = 1, .is_i9xx = 1, .need_gfx_hws = 1,
 131         .has_pipe_cxsr = 1,
 132         .has_hotplug = 1,
 133 };
 134
 135 const static struct intel_device_info intel_ironlake_m_info = {
 136         .is_ironlake = 1, .is_mobile = 1, .is_i965g = 1, .is_i9xx = 1,
 137         .need_gfx_hws = 1, .has_rc6 = 1,
 138         .has_hotplug = 1,
 139 };
 140
 141 const static struct intel_device_info intel_sandybridge_d_info = {
 142         .is_i965g = 1, .is_i9xx = 1, .need_gfx_hws = 1,
 143         .has_hotplug = 1, .is_gen6 = 1,
 144 };
 145
 146 const static struct intel_device_info intel_sandybridge_m_info = {
 147         .is_i965g = 1, .is_mobile = 1, .is_i9xx = 1, .need_gfx_hws = 1,
 148         .has_hotplug = 1, .is_gen6 = 1,
 149 };
 150
 151 const static struct pci_device_id pciidlist[] = {
 152         INTEL_VGA_DEVICE(0x3577, &intel_i830_info),
 153         INTEL_VGA_DEVICE(0x2562, &intel_845g_info),
 154         INTEL_VGA_DEVICE(0x3582, &intel_i85x_info),
 155         INTEL_VGA_DEVICE(0x358e, &intel_i85x_info),
 156         INTEL_VGA_DEVICE(0x2572, &intel_i865g_info),
 157         INTEL_VGA_DEVICE(0x2582, &intel_i915g_info),
 158         INTEL_VGA_DEVICE(0x258a, &intel_i915g_info),
 159         INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info),
 160         INTEL_VGA_DEVICE(0x2772, &intel_i945g_info),
 161         INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info),
 162         INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info),
 163         INTEL_VGA_DEVICE(0x2972, &intel_i965g_info),
 164         INTEL_VGA_DEVICE(0x2982, &intel_i965g_info),
 165         INTEL_VGA_DEVICE(0x2992, &intel_i965g_info),
 166         INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info),
 167         INTEL_VGA_DEVICE(0x29b2, &intel_g33_info),
 168         INTEL_VGA_DEVICE(0x29c2, &intel_g33_info),
 169         INTEL_VGA_DEVICE(0x29d2, &intel_g33_info),
 170         INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info),
 171         INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info),
 172         INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info),
 173         INTEL_VGA_DEVICE(0x2e02, &intel_g45_info),
 174         INTEL_VGA_DEVICE(0x2e12, &intel_g45_info),
 175         INTEL_VGA_DEVICE(0x2e22, &intel_g45_info),
 176         INTEL_VGA_DEVICE(0x2e32, &intel_g45_info),
 177         INTEL_VGA_DEVICE(0x2e42, &intel_g45_info),
 178         INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
 179         INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
 180         INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
 181         INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
 182         INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
 183         INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
 184         {0, 0, 0}
 185 };
 186
 187 #if defined(CONFIG_DRM_I915_KMS)
 188 MODULE_DEVICE_TABLE(pci, pciidlist);
 189 #endif
 190
 191 static int i915_drm_freeze(struct drm_device *dev)
 192 {
 193         struct drm_i915_private *dev_priv = dev->dev_private;
 194
 195         pci_save_state(dev->pdev);
 196
 197         /* If KMS is active, we do the leavevt stuff here */
 198         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 199                 int error = i915_gem_idle(dev);
 200                 if (error) {
 201                         dev_err(&dev->pdev->dev,
 202                                 "GEM idle failed, resume might fail\n");
 203                         return error;
 204                 }
 205                 drm_irq_uninstall(dev);
 206         }
 207
 208         i915_save_state(dev);
 209
 210         intel_opregion_free(dev, 1);
 211
 212         /* Modeset on resume, not lid events */
 213         dev_priv->modeset_on_lid = 0;
 214
 215         return 0;
 216 }
 217
 218 int i915_suspend(struct drm_device *dev, pm_message_t state)
 219 {
 220         int error;
 221
 222         if (!dev || !dev->dev_private) {
 223                 DRM_ERROR("dev: %p\n", dev);
 224                 DRM_ERROR("DRM not initialized, aborting suspend.\n");
 225                 return -ENODEV;
 226         }
 227
 228         if (state.event == PM_EVENT_PRETHAW)
 229                 return 0;
 230
 231         error = i915_drm_freeze(dev);
 232         if (error)
 233                 return error;
 234
 235         if (state.event == PM_EVENT_SUSPEND) {
 236                 /* Shut down the device */
 237                 pci_disable_device(dev->pdev);
 238                 pci_set_power_state(dev->pdev, PCI_D3hot);
 239         }
 240
 241         return 0;
 242 }
 243
 244 static int i915_drm_thaw(struct drm_device *dev)
 245 {
 246         struct drm_i915_private *dev_priv = dev->dev_private;
 247         int error = 0;
 248
 249         i915_restore_state(dev);
 250
 251         intel_opregion_init(dev, 1);
 252
 253         /* KMS EnterVT equivalent */
 254         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 255                 mutex_lock(&dev->struct_mutex);
 256                 dev_priv->mm.suspended = 0;
 257
 258                 error = i915_gem_init_ringbuffer(dev);
 259                 mutex_unlock(&dev->struct_mutex);
 260
 261                 drm_irq_install(dev);
 262
 263                 /* Resume the modeset for every activated CRTC */
 264                 drm_helper_resume_force_mode(dev);
 265         }
 266
 267         dev_priv->modeset_on_lid = 0;
 268
 269         return error;
 270 }
 271
 272 int i915_resume(struct drm_device *dev)
 273 {
 274         if (pci_enable_device(dev->pdev))
 275                 return -EIO;
 276
 277         pci_set_master(dev->pdev);
 278
 279         return i915_drm_thaw(dev);
 280 }
 281
 282 /**
 283  * i965_reset - reset chip after a hang
 284  * @dev: drm device to reset
 285  * @flags: reset domains
 286  *
 287  * Reset the chip.  Useful if a hang is detected. Returns zero on successful
 288  * reset or otherwise an error code.
 289  *
 290  * Procedure is fairly simple:
 291  *   - reset the chip using the reset reg
 292  *   - re-init context state
 293  *   - re-init hardware status page
 294  *   - re-init ring buffer
 295  *   - re-init interrupt state
 296  *   - re-init display
 297  */
 298 int i965_reset(struct drm_device *dev, u8 flags)
 299 {
 300         drm_i915_private_t *dev_priv = dev->dev_private;
 301         unsigned long timeout;
 302         u8 gdrst;
 303         /*
 304          * We really should only reset the display subsystem if we actually
 305          * need to
 306          */
 307         bool need_display = true;
 308
 309         mutex_lock(&dev->struct_mutex);
 310
 311         /*
 312          * Clear request list
 313          */
 314         i915_gem_retire_requests(dev);
 315
 316         if (need_display)
 317                 i915_save_display(dev);
 318
 319         if (IS_I965G(dev) || IS_G4X(dev)) {
 320                 /*
 321                  * Set the domains we want to reset, then the reset bit (bit 0).
 322                  * Clear the reset bit after a while and wait for hardware status
 323                  * bit (bit 1) to be set
 324                  */
 325                 pci_read_config_byte(dev->pdev, GDRST, &gdrst);
 326                 pci_write_config_byte(dev->pdev, GDRST, gdrst | flags | ((flags == GDRST_FULL) ? 0x1 : 0x0));
 327                 udelay(50);
 328                 pci_write_config_byte(dev->pdev, GDRST, gdrst & 0xfe);
 329
 330                 /* ...we don't want to loop forever though, 500ms should be plenty */
 331                timeout = jiffies + msecs_to_jiffies(500);
 332                 do {
 333                         udelay(100);
 334                         pci_read_config_byte(dev->pdev, GDRST, &gdrst);
 335                 } while ((gdrst & 0x1) && time_after(timeout, jiffies));
 336
 337                 if (gdrst & 0x1) {
 338                         WARN(true, "i915: Failed to reset chip\n");
 339                         mutex_unlock(&dev->struct_mutex);
 340                         return -EIO;
 341                 }
 342         } else {
 343                 DRM_ERROR("Error occurred. Don't know how to reset this chip.\n");
 344                 return -ENODEV;
 345         }
 346
 347         /* Ok, now get things going again... */
 348
 349         /*
 350          * Everything depends on having the GTT running, so we need to start
 351          * there.  Fortunately we don't need to do this unless we reset the
 352          * chip at a PCI level.
 353          *
 354          * Next we need to restore the context, but we don't use those
 355          * yet either...
 356          *
 357          * Ring buffer needs to be re-initialized in the KMS case, or if X
 358          * was running at the time of the reset (i.e. we weren't VT
 359          * switched away).
 360          */
 361         if (drm_core_check_feature(dev, DRIVER_MODESET) ||
 362             !dev_priv->mm.suspended) {
 363                 drm_i915_ring_buffer_t *ring = &dev_priv->ring;
 364                 struct drm_gem_object *obj = ring->ring_obj;
 365                 struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
 366                 dev_priv->mm.suspended = 0;
 367
 368                 /* Stop the ring if it's running. */
 369                 I915_WRITE(PRB0_CTL, 0);
 370                 I915_WRITE(PRB0_TAIL, 0);
 371                 I915_WRITE(PRB0_HEAD, 0);
 372
 373                 /* Initialize the ring. */
 374                 I915_WRITE(PRB0_START, obj_priv->gtt_offset);
 375                 I915_WRITE(PRB0_CTL,
 376                            ((obj->size - 4096) & RING_NR_PAGES) |
 377                            RING_NO_REPORT |
 378                            RING_VALID);
 379                 if (!drm_core_check_feature(dev, DRIVER_MODESET))
 380                         i915_kernel_lost_context(dev);
 381                 else {
 382                         ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
 383                         ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
 384                         ring->space = ring->head - (ring->tail + 8);
 385                         if (ring->space < 0)
 386                                 ring->space += ring->Size;
 387                 }
 388
 389                 mutex_unlock(&dev->struct_mutex);
 390                 drm_irq_uninstall(dev);
 391                 drm_irq_install(dev);
 392                 mutex_lock(&dev->struct_mutex);
 393         }
 394
 395         /*
 396          * Display needs restore too...
 397          */
 398         if (need_display)
 399                 i915_restore_display(dev);
 400
 401         mutex_unlock(&dev->struct_mutex);
 402         return 0;
 403 }
 404
 405
 406 static int __devinit
 407 i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 408 {
 409         return drm_get_dev(pdev, ent, &driver);
 410 }
 411
 412 static void
 413 i915_pci_remove(struct pci_dev *pdev)
 414 {
 415         struct drm_device *dev = pci_get_drvdata(pdev);
 416
 417         drm_put_dev(dev);
 418 }
 419
 420 static int i915_pm_suspend(struct device *dev)
 421 {
 422         struct pci_dev *pdev = to_pci_dev(dev);
 423         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 424         int error;
 425
 426         if (!drm_dev || !drm_dev->dev_private) {
 427                 dev_err(dev, "DRM not initialized, aborting suspend.\n");
 428                 return -ENODEV;
 429         }
 430
 431         error = i915_drm_freeze(drm_dev);
 432         if (error)
 433                 return error;
 434
 435         pci_disable_device(pdev);
 436         pci_set_power_state(pdev, PCI_D3hot);
 437
 438         return 0;
 439 }
 440
 441 static int i915_pm_resume(struct device *dev)
 442 {
 443         struct pci_dev *pdev = to_pci_dev(dev);
 444         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 445
 446         return i915_resume(drm_dev);
 447 }
 448
 449 static int i915_pm_freeze(struct device *dev)
 450 {
 451         struct pci_dev *pdev = to_pci_dev(dev);
 452         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 453
 454         if (!drm_dev || !drm_dev->dev_private) {
 455                 dev_err(dev, "DRM not initialized, aborting suspend.\n");
 456                 return -ENODEV;
 457         }
 458
 459         return i915_drm_freeze(drm_dev);
 460 }
 461
 462 static int i915_pm_thaw(struct device *dev)
 463 {
 464         struct pci_dev *pdev = to_pci_dev(dev);
 465         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 466
 467         return i915_drm_thaw(drm_dev);
 468 }
 469
 470 static int i915_pm_poweroff(struct device *dev)
 471 {
 472         struct pci_dev *pdev = to_pci_dev(dev);
 473         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 474
 475         return i915_drm_freeze(drm_dev);
 476 }
 477
 478 const struct dev_pm_ops i915_pm_ops = {
 479      .suspend = i915_pm_suspend,
 480      .resume = i915_pm_resume,
 481      .freeze = i915_pm_freeze,
 482      .thaw = i915_pm_thaw,
 483      .poweroff = i915_pm_poweroff,
 484      .restore = i915_pm_resume,
 485 };
 486
 487 static struct vm_operations_struct i915_gem_vm_ops = {
 488         .fault = i915_gem_fault,
 489         .open = drm_gem_vm_open,
 490         .close = drm_gem_vm_close,
 491 };
 492
 493 static struct drm_driver driver = {
 494         /* don't use mtrr's here, the Xserver or user space app should
 495          * deal with them for intel hardware.
 496          */
 497         .driver_features =
 498             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
 499             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
 500         .load = i915_driver_load,
 501         .unload = i915_driver_unload,
 502         .open = i915_driver_open,
 503         .lastclose = i915_driver_lastclose,
 504         .preclose = i915_driver_preclose,
 505         .postclose = i915_driver_postclose,
 506
 507         /* Used in place of i915_pm_ops for non-DRIVER_MODESET */
 508         .suspend = i915_suspend,
 509         .resume = i915_resume,
 510
 511         .device_is_agp = i915_driver_device_is_agp,
 512         .enable_vblank = i915_enable_vblank,
 513         .disable_vblank = i915_disable_vblank,
 514         .irq_preinstall = i915_driver_irq_preinstall,
 515         .irq_postinstall = i915_driver_irq_postinstall,
 516         .irq_uninstall = i915_driver_irq_uninstall,
 517         .irq_handler = i915_driver_irq_handler,
 518         .reclaim_buffers = drm_core_reclaim_buffers,
 519         .get_map_ofs = drm_core_get_map_ofs,
 520         .get_reg_ofs = drm_core_get_reg_ofs,
 521         .master_create = i915_master_create,
 522         .master_destroy = i915_master_destroy,
 523 #if defined(CONFIG_DEBUG_FS)
 524         .debugfs_init = i915_debugfs_init,
 525         .debugfs_cleanup = i915_debugfs_cleanup,
 526 #endif
 527         .gem_init_object = i915_gem_init_object,
 528         .gem_free_object = i915_gem_free_object,
 529         .gem_vm_ops = &i915_gem_vm_ops,
 530         .ioctls = i915_ioctls,
 531         .fops = {
 532                  .owner = THIS_MODULE,
 533                  .open = drm_open,
 534                  .release = drm_release,
 535                  .unlocked_ioctl = drm_ioctl,
 536                  .mmap = drm_gem_mmap,
 537                  .poll = drm_poll,
 538                  .fasync = drm_fasync,
 539                  .read = drm_read,
 540 #ifdef CONFIG_COMPAT
 541                  .compat_ioctl = i915_compat_ioctl,
 542 #endif
 543         },
 544
 545         .pci_driver = {
 546                  .name = DRIVER_NAME,
 547                  .id_table = pciidlist,
 548                  .probe = i915_pci_probe,
 549                  .remove = i915_pci_remove,
 550                  .driver.pm = &i915_pm_ops,
 551         },
 552
 553         .name = DRIVER_NAME,
 554         .desc = DRIVER_DESC,
 555         .date = DRIVER_DATE,
 556         .major = DRIVER_MAJOR,
 557         .minor = DRIVER_MINOR,
 558         .patchlevel = DRIVER_PATCHLEVEL,
 559 };
 560
 561 static int __init i915_init(void)
 562 {
 563         if (!intel_agp_enabled) {
 564                 DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
 565                 return -ENODEV;
 566         }
 567
 568         driver.num_ioctls = i915_max_ioctl;
 569
 570         i915_gem_shrinker_init();
 571
 572         /*
 573          * If CONFIG_DRM_I915_KMS is set, default to KMS unless
 574          * explicitly disabled with the module pararmeter.
 575          *
 576          * Otherwise, just follow the parameter (defaulting to off).
 577          *
 578          * Allow optional vga_text_mode_force boot option to override
 579          * the default behavior.
 580          */
 581 #if defined(CONFIG_DRM_I915_KMS)
 582         if (i915_modeset != 0)
 583                 driver.driver_features |= DRIVER_MODESET;
 584 #endif
 585         if (i915_modeset == 1)
 586                 driver.driver_features |= DRIVER_MODESET;
 587
 588 #ifdef CONFIG_VGA_CONSOLE
 589         if (vgacon_text_force() && i915_modeset == -1)
 590                 driver.driver_features &= ~DRIVER_MODESET;
 591 #endif
 592
 593         if (!(driver.driver_features & DRIVER_MODESET)) {
 594                 driver.suspend = i915_suspend;
 595                 driver.resume = i915_resume;
 596         }
 597
 598         return drm_init(&driver);
 599 }
 600
 601 static void __exit i915_exit(void)
 602 {
 603         i915_gem_shrinker_exit();
 604         drm_exit(&driver);
 605 }
 606
 607 module_init(i915_init);
 608 module_exit(i915_exit);
 609
 610 MODULE_AUTHOR(DRIVER_AUTHOR);
 611 MODULE_DESCRIPTION(DRIVER_DESC);
 612 MODULE_LICENSE("GPL and additional rights");