sys/dev/drm/i915/i915_pci.c

   1 /*
   2  * Copyright © 2016 Intel Corporation
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #include <linux/console.h>
  26 #include <linux/vgaarb.h>
  27 #include <linux/vga_switcheroo.h>
  28
  29 #include "i915_drv.h"
  30
  31 #define GEN_DEFAULT_PIPEOFFSETS \
  32         .pipe_offsets = { PIPE_A_OFFSET, PIPE_B_OFFSET, \
  33                           PIPE_C_OFFSET, PIPE_EDP_OFFSET }, \
  34         .trans_offsets = { TRANSCODER_A_OFFSET, TRANSCODER_B_OFFSET, \
  35                            TRANSCODER_C_OFFSET, TRANSCODER_EDP_OFFSET }, \
  36         .palette_offsets = { PALETTE_A_OFFSET, PALETTE_B_OFFSET }
  37
  38 #define GEN_CHV_PIPEOFFSETS \
  39         .pipe_offsets = { PIPE_A_OFFSET, PIPE_B_OFFSET, \
  40                           CHV_PIPE_C_OFFSET }, \
  41         .trans_offsets = { TRANSCODER_A_OFFSET, TRANSCODER_B_OFFSET, \
  42                            CHV_TRANSCODER_C_OFFSET, }, \
  43         .palette_offsets = { PALETTE_A_OFFSET, PALETTE_B_OFFSET, \
  44                              CHV_PALETTE_C_OFFSET }
  45
  46 #define CURSOR_OFFSETS \
  47         .cursor_offsets = { CURSOR_A_OFFSET, CURSOR_B_OFFSET, CHV_CURSOR_C_OFFSET }
  48
  49 #define IVB_CURSOR_OFFSETS \
  50         .cursor_offsets = { CURSOR_A_OFFSET, IVB_CURSOR_B_OFFSET, IVB_CURSOR_C_OFFSET }
  51
  52 #define BDW_COLORS \
  53         .color = { .degamma_lut_size = 512, .gamma_lut_size = 512 }
  54 #define CHV_COLORS \
  55         .color = { .degamma_lut_size = 65, .gamma_lut_size = 257 }
  56
  57 #define GEN2_FEATURES \
  58         .gen = 2, .num_pipes = 1, \
  59         .has_overlay = 1, .overlay_needs_physical = 1, \
  60         .has_gmch_display = 1, \
  61         .hws_needs_physical = 1, \
  62         .ring_mask = RENDER_RING, \
  63         GEN_DEFAULT_PIPEOFFSETS, \
  64         CURSOR_OFFSETS
  65
  66 static const struct intel_device_info intel_i830_info = {
  67         GEN2_FEATURES,
  68         .is_mobile = 1, .cursor_needs_physical = 1,
  69         .num_pipes = 2, /* legal, last one wins */
  70 };
  71
  72 static const struct intel_device_info intel_845g_info = {
  73         GEN2_FEATURES,
  74 };
  75
  76 static const struct intel_device_info intel_i85x_info = {
  77         GEN2_FEATURES,
  78         .is_i85x = 1, .is_mobile = 1,
  79         .num_pipes = 2, /* legal, last one wins */
  80         .cursor_needs_physical = 1,
  81         .has_fbc = 1,
  82 };
  83
  84 static const struct intel_device_info intel_i865g_info = {
  85         GEN2_FEATURES,
  86 };
  87
  88 #define GEN3_FEATURES \
  89         .gen = 3, .num_pipes = 2, \
  90         .has_gmch_display = 1, \
  91         .ring_mask = RENDER_RING, \
  92         GEN_DEFAULT_PIPEOFFSETS, \
  93         CURSOR_OFFSETS
  94
  95 static const struct intel_device_info intel_i915g_info = {
  96         GEN3_FEATURES,
  97         .is_i915g = 1, .cursor_needs_physical = 1,
  98         .has_overlay = 1, .overlay_needs_physical = 1,
  99         .hws_needs_physical = 1,
 100 };
 101 static const struct intel_device_info intel_i915gm_info = {
 102         GEN3_FEATURES,
 103         .is_mobile = 1,
 104         .cursor_needs_physical = 1,
 105         .has_overlay = 1, .overlay_needs_physical = 1,
 106         .supports_tv = 1,
 107         .has_fbc = 1,
 108         .hws_needs_physical = 1,
 109 };
 110 static const struct intel_device_info intel_i945g_info = {
 111         GEN3_FEATURES,
 112         .has_hotplug = 1, .cursor_needs_physical = 1,
 113         .has_overlay = 1, .overlay_needs_physical = 1,
 114         .hws_needs_physical = 1,
 115 };
 116 static const struct intel_device_info intel_i945gm_info = {
 117         GEN3_FEATURES,
 118         .is_i945gm = 1, .is_mobile = 1,
 119         .has_hotplug = 1, .cursor_needs_physical = 1,
 120         .has_overlay = 1, .overlay_needs_physical = 1,
 121         .supports_tv = 1,
 122         .has_fbc = 1,
 123         .hws_needs_physical = 1,
 124 };
 125
 126 #define GEN4_FEATURES \
 127         .gen = 4, .num_pipes = 2, \
 128         .has_hotplug = 1, \
 129         .has_gmch_display = 1, \
 130         .ring_mask = RENDER_RING, \
 131         GEN_DEFAULT_PIPEOFFSETS, \
 132         CURSOR_OFFSETS
 133
 134 static const struct intel_device_info intel_i965g_info = {
 135         GEN4_FEATURES,
 136         .is_broadwater = 1,
 137         .has_overlay = 1,
 138         .hws_needs_physical = 1,
 139 };
 140
 141 static const struct intel_device_info intel_i965gm_info = {
 142         GEN4_FEATURES,
 143         .is_crestline = 1,
 144         .is_mobile = 1, .has_fbc = 1,
 145         .has_overlay = 1,
 146         .supports_tv = 1,
 147         .hws_needs_physical = 1,
 148 };
 149
 150 static const struct intel_device_info intel_g33_info = {
 151         GEN3_FEATURES,
 152         .is_g33 = 1,
 153         .has_hotplug = 1,
 154         .has_overlay = 1,
 155 };
 156
 157 static const struct intel_device_info intel_g45_info = {
 158         GEN4_FEATURES,
 159         .is_g4x = 1,
 160         .has_pipe_cxsr = 1,
 161         .ring_mask = RENDER_RING | BSD_RING,
 162 };
 163
 164 static const struct intel_device_info intel_gm45_info = {
 165         GEN4_FEATURES,
 166         .is_g4x = 1,
 167         .is_mobile = 1, .has_fbc = 1,
 168         .has_pipe_cxsr = 1,
 169         .supports_tv = 1,
 170         .ring_mask = RENDER_RING | BSD_RING,
 171 };
 172
 173 static const struct intel_device_info intel_pineview_info = {
 174         GEN3_FEATURES,
 175         .is_g33 = 1, .is_pineview = 1, .is_mobile = 1,
 176         .has_hotplug = 1,
 177         .has_overlay = 1,
 178 };
 179
 180 #define GEN5_FEATURES \
 181         .gen = 5, .num_pipes = 2, \
 182         .has_hotplug = 1, \
 183         .has_gmbus_irq = 1, \
 184         .ring_mask = RENDER_RING | BSD_RING, \
 185         GEN_DEFAULT_PIPEOFFSETS, \
 186         CURSOR_OFFSETS
 187
 188 static const struct intel_device_info intel_ironlake_d_info = {
 189         GEN5_FEATURES,
 190 };
 191
 192 static const struct intel_device_info intel_ironlake_m_info = {
 193         GEN5_FEATURES,
 194         .is_mobile = 1,
 195 };
 196
 197 #define GEN6_FEATURES \
 198         .gen = 6, .num_pipes = 2, \
 199         .has_hotplug = 1, \
 200         .has_fbc = 1, \
 201         .ring_mask = RENDER_RING | BSD_RING | BLT_RING, \
 202         .has_llc = 1, \
 203         .has_rc6 = 1, \
 204         .has_rc6p = 1, \
 205         .has_gmbus_irq = 1, \
 206         .has_hw_contexts = 1, \
 207         GEN_DEFAULT_PIPEOFFSETS, \
 208         CURSOR_OFFSETS
 209
 210 static const struct intel_device_info intel_sandybridge_d_info = {
 211         GEN6_FEATURES,
 212 };
 213
 214 static const struct intel_device_info intel_sandybridge_m_info = {
 215         GEN6_FEATURES,
 216         .is_mobile = 1,
 217 };
 218
 219 #define GEN7_FEATURES  \
 220         .gen = 7, .num_pipes = 3, \
 221         .has_hotplug = 1, \
 222         .has_fbc = 1, \
 223         .ring_mask = RENDER_RING | BSD_RING | BLT_RING, \
 224         .has_llc = 1, \
 225         .has_rc6 = 1, \
 226         .has_rc6p = 1, \
 227         .has_gmbus_irq = 1, \
 228         .has_hw_contexts = 1, \
 229         GEN_DEFAULT_PIPEOFFSETS, \
 230         IVB_CURSOR_OFFSETS
 231
 232 static const struct intel_device_info intel_ivybridge_d_info = {
 233         GEN7_FEATURES,
 234         .is_ivybridge = 1,
 235         .has_l3_dpf = 1,
 236 };
 237
 238 static const struct intel_device_info intel_ivybridge_m_info = {
 239         GEN7_FEATURES,
 240         .is_ivybridge = 1,
 241         .is_mobile = 1,
 242         .has_l3_dpf = 1,
 243 };
 244
 245 static const struct intel_device_info intel_ivybridge_q_info = {
 246         GEN7_FEATURES,
 247         .is_ivybridge = 1,
 248         .num_pipes = 0, /* legal, last one wins */
 249         .has_l3_dpf = 1,
 250 };
 251
 252 #define VLV_FEATURES  \
 253         .gen = 7, .num_pipes = 2, \
 254         .has_psr = 1, \
 255         .has_runtime_pm = 1, \
 256         .has_rc6 = 1, \
 257         .has_gmbus_irq = 1, \
 258         .has_hw_contexts = 1, \
 259         .has_gmch_display = 1, \
 260         .has_hotplug = 1, \
 261         .ring_mask = RENDER_RING | BSD_RING | BLT_RING, \
 262         .display_mmio_offset = VLV_DISPLAY_BASE, \
 263         GEN_DEFAULT_PIPEOFFSETS, \
 264         CURSOR_OFFSETS
 265
 266 static const struct intel_device_info intel_valleyview_info = {
 267         VLV_FEATURES,
 268         .is_valleyview = 1,
 269 };
 270
 271 #define HSW_FEATURES  \
 272         GEN7_FEATURES, \
 273         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING, \
 274         .has_ddi = 1, \
 275         .has_fpga_dbg = 1, \
 276         .has_psr = 1, \
 277         .has_resource_streamer = 1, \
 278         .has_dp_mst = 1, \
 279         .has_rc6p = 0 /* RC6p removed-by HSW */, \
 280         .has_runtime_pm = 1
 281
 282 static const struct intel_device_info intel_haswell_info = {
 283         HSW_FEATURES,
 284         .is_haswell = 1,
 285         .has_l3_dpf = 1,
 286 };
 287
 288 #define BDW_FEATURES \
 289         HSW_FEATURES, \
 290         BDW_COLORS, \
 291         .has_logical_ring_contexts = 1
 292
 293 static const struct intel_device_info intel_broadwell_info = {
 294         BDW_FEATURES,
 295         .gen = 8,
 296         .is_broadwell = 1,
 297 };
 298
 299 static const struct intel_device_info intel_broadwell_gt3_info = {
 300         BDW_FEATURES,
 301         .gen = 8,
 302         .is_broadwell = 1,
 303         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
 304 };
 305
 306 static const struct intel_device_info intel_cherryview_info = {
 307         .gen = 8, .num_pipes = 3,
 308         .has_hotplug = 1,
 309         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
 310         .is_cherryview = 1,
 311         .has_psr = 1,
 312         .has_runtime_pm = 1,
 313         .has_resource_streamer = 1,
 314         .has_rc6 = 1,
 315         .has_gmbus_irq = 1,
 316         .has_hw_contexts = 1,
 317         .has_logical_ring_contexts = 1,
 318         .has_gmch_display = 1,
 319         .display_mmio_offset = VLV_DISPLAY_BASE,
 320         GEN_CHV_PIPEOFFSETS,
 321         CURSOR_OFFSETS,
 322         CHV_COLORS,
 323 };
 324
 325 #define GEN9_FEATURES \
 326         BDW_FEATURES, \
 327         .gen = 9, \
 328         .ddb_size = 896
 329
 330 static const struct intel_device_info intel_skylake_info = {
 331         BDW_FEATURES,
 332         .is_skylake = 1,
 333         .gen = 9,
 334         .has_csr = 1,
 335         .has_guc = 1,
 336         .ddb_size = 896,
 337 };
 338
 339 static const struct intel_device_info intel_skylake_gt3_info = {
 340         BDW_FEATURES,
 341         .is_skylake = 1,
 342         .gen = 9,
 343         .has_csr = 1,
 344         .has_guc = 1,
 345         .ddb_size = 896,
 346         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
 347 };
 348
 349 static const struct intel_device_info intel_broxton_info = {
 350         .is_broxton = 1,
 351         .gen = 9,
 352         .has_hotplug = 1,
 353         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
 354         .num_pipes = 3,
 355         .has_ddi = 1,
 356         .has_fpga_dbg = 1,
 357         .has_fbc = 1,
 358         .has_runtime_pm = 1,
 359         .has_pooled_eu = 0,
 360         .has_csr = 1,
 361         .has_resource_streamer = 1,
 362         .has_rc6 = 1,
 363         .has_dp_mst = 1,
 364         .has_gmbus_irq = 1,
 365         .has_hw_contexts = 1,
 366         .has_logical_ring_contexts = 1,
 367         .has_guc = 1,
 368         .ddb_size = 512,
 369         GEN_DEFAULT_PIPEOFFSETS,
 370         IVB_CURSOR_OFFSETS,
 371         BDW_COLORS,
 372 };
 373
 374 #define KBL_PLATFORM \
 375         GEN9_FEATURES, \
 376         .is_kabylake = 1
 377
 378 static const struct intel_device_info intel_kabylake_gt1_info = {
 379         KBL_PLATFORM,
 380 };
 381
 382 static const struct intel_device_info intel_kabylake_gt2_info = {
 383         BDW_FEATURES,
 384         .is_kabylake = 1,
 385         .gen = 9,
 386         .has_csr = 1,
 387         .has_guc = 1,
 388         .ddb_size = 896,
 389 };
 390
 391 static const struct intel_device_info intel_kabylake_gt3_info = {
 392         BDW_FEATURES,
 393         .is_kabylake = 1,
 394         .gen = 9,
 395         .has_csr = 1,
 396         .has_guc = 1,
 397         .ddb_size = 896,
 398         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
 399 };
 400
 401 #define CFL_PLATFORM \
 402         GEN9_FEATURES, \
 403         .is_kabylake = 1
 404
 405 static const struct intel_device_info intel_coffeelake_gt1_info = {
 406         CFL_PLATFORM,
 407 };
 408
 409 static const struct intel_device_info intel_coffeelake_gt2_info = {
 410         CFL_PLATFORM,
 411 };
 412
 413 static const struct intel_device_info intel_coffeelake_gt3_info = {
 414         CFL_PLATFORM,
 415         .ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
 416 };
 417
 418 /*
 419  * Make sure any device matches here are from most specific to most
 420  * general.  For example, since the Quanta match is based on the subsystem
 421  * and subvendor IDs, we need it to come before the more general IVB
 422  * PCI ID matches, otherwise we'll use the wrong info struct above.
 423  */
 424 static const struct pci_device_id pciidlist[] = {
 425         INTEL_I830_IDS(&intel_i830_info),
 426         INTEL_I845G_IDS(&intel_845g_info),
 427         INTEL_I85X_IDS(&intel_i85x_info),
 428         INTEL_I865G_IDS(&intel_i865g_info),
 429         INTEL_I915G_IDS(&intel_i915g_info),
 430         INTEL_I915GM_IDS(&intel_i915gm_info),
 431         INTEL_I945G_IDS(&intel_i945g_info),
 432         INTEL_I945GM_IDS(&intel_i945gm_info),
 433         INTEL_I965G_IDS(&intel_i965g_info),
 434         INTEL_G33_IDS(&intel_g33_info),
 435         INTEL_I965GM_IDS(&intel_i965gm_info),
 436         INTEL_GM45_IDS(&intel_gm45_info),
 437         INTEL_G45_IDS(&intel_g45_info),
 438         INTEL_PINEVIEW_IDS(&intel_pineview_info),
 439         INTEL_IRONLAKE_D_IDS(&intel_ironlake_d_info),
 440         INTEL_IRONLAKE_M_IDS(&intel_ironlake_m_info),
 441         INTEL_SNB_D_IDS(&intel_sandybridge_d_info),
 442         INTEL_SNB_M_IDS(&intel_sandybridge_m_info),
 443         INTEL_IVB_Q_IDS(&intel_ivybridge_q_info), /* must be first IVB */
 444         INTEL_IVB_M_IDS(&intel_ivybridge_m_info),
 445         INTEL_IVB_D_IDS(&intel_ivybridge_d_info),
 446         INTEL_HSW_IDS(&intel_haswell_info),
 447         INTEL_VLV_IDS(&intel_valleyview_info),
 448         INTEL_BDW_GT12_IDS(&intel_broadwell_info),
 449         INTEL_BDW_GT3_IDS(&intel_broadwell_gt3_info),
 450         INTEL_CHV_IDS(&intel_cherryview_info),
 451         INTEL_SKL_GT1_IDS(&intel_skylake_info),
 452         INTEL_SKL_GT2_IDS(&intel_skylake_info),
 453         INTEL_SKL_GT3_IDS(&intel_skylake_gt3_info),
 454         INTEL_SKL_GT4_IDS(&intel_skylake_gt3_info),
 455         INTEL_BXT_IDS(&intel_broxton_info),
 456         INTEL_KBL_GT1_IDS(&intel_kabylake_gt1_info),
 457         INTEL_KBL_GT2_IDS(&intel_kabylake_gt2_info),
 458         INTEL_KBL_GT3_IDS(&intel_kabylake_gt3_info),
 459         INTEL_KBL_GT4_IDS(&intel_kabylake_gt3_info),
 460         INTEL_AML_KBL_GT2_IDS(&intel_kabylake_gt2_info),
 461         INTEL_CFL_S_GT1_IDS(&intel_coffeelake_gt1_info),
 462         INTEL_CFL_S_GT2_IDS(&intel_coffeelake_gt2_info),
 463         INTEL_CFL_H_GT1_IDS(&intel_coffeelake_gt1_info),
 464         INTEL_CFL_H_GT2_IDS(&intel_coffeelake_gt2_info),
 465         INTEL_CFL_U_GT2_IDS(&intel_coffeelake_gt2_info),
 466         INTEL_CFL_U_GT3_IDS(&intel_coffeelake_gt3_info),
 467         INTEL_WHL_U_GT1_IDS(&intel_coffeelake_gt1_info),
 468         INTEL_WHL_U_GT2_IDS(&intel_coffeelake_gt2_info),
 469         INTEL_AML_CFL_GT2_IDS(&intel_coffeelake_gt2_info),
 470         INTEL_WHL_U_GT3_IDS(&intel_coffeelake_gt3_info),
 471         INTEL_CML_GT1_IDS(&intel_coffeelake_gt1_info),
 472         INTEL_CML_GT2_IDS(&intel_coffeelake_gt2_info),
 473         {0, 0, 0}
 474 };
 475 MODULE_DEVICE_TABLE(pci, pciidlist);
 476
 477 static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 478 {
 479         struct intel_device_info *intel_info =
 480                 (struct intel_device_info *) ent->driver_data;
 481
 482         if (IS_PRELIMINARY_HW(intel_info) && !i915.preliminary_hw_support) {
 483                 DRM_INFO("This hardware requires preliminary hardware support.\n"
 484                          "See CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT, and/or modparam preliminary_hw_support\n");
 485                 return -ENODEV;
 486         }
 487
 488         /* Only bind to function 0 of the device. Early generations
 489          * used function 1 as a placeholder for multi-head. This causes
 490          * us confusion instead, especially on the systems where both
 491          * functions have the same PCI-ID!
 492          */
 493         if (PCI_FUNC(pdev->devfn))
 494                 return -ENODEV;
 495
 496         /*
 497          * apple-gmux is needed on dual GPU MacBook Pro
 498          * to probe the panel if we're the inactive GPU.
 499          */
 500         if (vga_switcheroo_client_probe_defer(pdev))
 501                 return -EPROBE_DEFER;
 502
 503         return i915_driver_load(pdev, ent);
 504 }
 505
 506 static void i915_pci_remove(struct pci_dev *pdev)
 507 {
 508         struct drm_device *dev = pci_get_drvdata(pdev);
 509
 510         i915_driver_unload(dev);
 511         drm_dev_unref(dev);
 512 }
 513
 514 static struct pci_driver i915_pci_driver = {
 515         .name = DRIVER_NAME,
 516         .id_table = pciidlist,
 517         .probe = i915_pci_probe,
 518         .remove = i915_pci_remove,
 519 #if 0
 520         .driver.pm = &i915_pm_ops,
 521 #endif
 522 };
 523
 524 static int __init i915_init(void)
 525 {
 526         bool use_kms = true;
 527
 528         /*
 529          * Enable KMS by default, unless explicitly overriden by
 530          * either the i915.modeset prarameter or by the
 531          * vga_text_mode_force boot option.
 532          */
 533
 534         if (i915.modeset == 0)
 535                 use_kms = false;
 536
 537         if (vgacon_text_force() && i915.modeset == -1)
 538                 use_kms = false;
 539
 540         if (!use_kms) {
 541                 /* Silently fail loading to not upset userspace. */
 542                 DRM_DEBUG_DRIVER("KMS disabled.\n");
 543                 return 0;
 544         }
 545
 546         return pci_register_driver(&i915_pci_driver);
 547 }
 548
 549 static void __exit i915_exit(void)
 550 {
 551 #if 0
 552         if (!i915_pci_driver.driver.owner)
 553                 return;
 554 #endif
 555
 556         pci_unregister_driver(&i915_pci_driver);
 557 }
 558
 559 module_init(i915_init);
 560 module_exit(i915_exit);
 561
 562 MODULE_AUTHOR("Tungsten Graphics, Inc.");
 563 MODULE_AUTHOR("Intel Corporation");
 564
 565 static int
 566 i915_pci_probe_dfly(device_t kdev)
 567 {
 568         int device, i = 0;
 569         const struct pci_device_id *ent;
 570         static struct pci_dev *pdev = NULL;
 571         static device_t bsddev;
 572
 573         if (pci_get_class(kdev) != PCIC_DISPLAY)
 574                 return ENXIO;
 575
 576         if (pci_get_vendor(kdev) != PCI_VENDOR_ID_INTEL)
 577                 return ENXIO;
 578
 579         device = pci_get_device(kdev);
 580
 581         for (i = 0; pciidlist[i].device != 0; i++) {
 582                 if (pciidlist[i].device == device) {
 583                         ent = &pciidlist[i];
 584                         goto found;
 585                 }
 586         }
 587
 588         return ENXIO;
 589 found:
 590         if (!strcmp(device_get_name(kdev), "drmsub"))
 591                 bsddev = device_get_parent(kdev);
 592         else
 593                 bsddev = kdev;
 594
 595         drm_init_pdev(bsddev, &pdev);
 596
 597         /* Print the contents of pdev struct. */
 598         drm_print_pdev(pdev);
 599
 600         return i915_pci_probe(pdev, ent);
 601 }
 602
 603 static int i915_driver_attach(device_t kdev)
 604 {
 605         return 0;
 606 }
 607
 608 static device_method_t i915_methods[] = {
 609         /* Device interface */
 610         DEVMETHOD(device_probe,         i915_pci_probe_dfly),
 611         DEVMETHOD(device_attach,        i915_driver_attach),
 612         DEVMETHOD(device_suspend,       i915_suspend_switcheroo),
 613         DEVMETHOD(device_resume,        i915_resume_switcheroo),
 614         DEVMETHOD(device_detach,        drm_release),
 615         DEVMETHOD_END
 616 };
 617
 618 static driver_t i915_driver = {
 619         "drm",
 620         i915_methods,
 621         sizeof(struct drm_softc)
 622 };
 623
 624 extern devclass_t drm_devclass;
 625
 626 DRIVER_MODULE_ORDERED(i915, vgapci, i915_driver, drm_devclass, NULL, NULL, SI_ORDER_ANY);
 627 MODULE_DEPEND(i915, drm, 1, 1, 1);
 628 #ifdef CONFIG_ACPI
 629 MODULE_DEPEND(i915, acpi, 1, 1, 1);
 630 #endif