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   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/vga_switcheroo.h>
  27
  28#include <drm/drm_drv.h>
  29#include <drm/i915_pciids.h>
  30
  31#include "display/intel_fbdev.h"
  32
  33#include "i915_drv.h"
  34#include "i915_perf.h"
  35#include "i915_globals.h"
  36#include "i915_selftest.h"
  37
  38#define PLATFORM(x) .platform = (x)
  39#define GEN(x) .gen = (x), .gen_mask = BIT((x) - 1)
  40
  41#define I845_PIPE_OFFSETS \
  42	.pipe_offsets = { \
  43		[TRANSCODER_A] = PIPE_A_OFFSET,	\
  44	}, \
  45	.trans_offsets = { \
  46		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
  47	}
  48
  49#define I9XX_PIPE_OFFSETS \
  50	.pipe_offsets = { \
  51		[TRANSCODER_A] = PIPE_A_OFFSET,	\
  52		[TRANSCODER_B] = PIPE_B_OFFSET, \
  53	}, \
  54	.trans_offsets = { \
  55		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
  56		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
  57	}
  58
  59#define IVB_PIPE_OFFSETS \
  60	.pipe_offsets = { \
  61		[TRANSCODER_A] = PIPE_A_OFFSET,	\
  62		[TRANSCODER_B] = PIPE_B_OFFSET, \
  63		[TRANSCODER_C] = PIPE_C_OFFSET, \
  64	}, \
  65	.trans_offsets = { \
  66		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
  67		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
  68		[TRANSCODER_C] = TRANSCODER_C_OFFSET, \
  69	}
  70
  71#define HSW_PIPE_OFFSETS \
  72	.pipe_offsets = { \
  73		[TRANSCODER_A] = PIPE_A_OFFSET,	\
  74		[TRANSCODER_B] = PIPE_B_OFFSET, \
  75		[TRANSCODER_C] = PIPE_C_OFFSET, \
  76		[TRANSCODER_EDP] = PIPE_EDP_OFFSET, \
  77	}, \
  78	.trans_offsets = { \
  79		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
  80		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
  81		[TRANSCODER_C] = TRANSCODER_C_OFFSET, \
  82		[TRANSCODER_EDP] = TRANSCODER_EDP_OFFSET, \
  83	}
  84
  85#define CHV_PIPE_OFFSETS \
  86	.pipe_offsets = { \
  87		[TRANSCODER_A] = PIPE_A_OFFSET, \
  88		[TRANSCODER_B] = PIPE_B_OFFSET, \
  89		[TRANSCODER_C] = CHV_PIPE_C_OFFSET, \
  90	}, \
  91	.trans_offsets = { \
  92		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
  93		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
  94		[TRANSCODER_C] = CHV_TRANSCODER_C_OFFSET, \
  95	}
  96
  97#define I845_CURSOR_OFFSETS \
  98	.cursor_offsets = { \
  99		[PIPE_A] = CURSOR_A_OFFSET, \
 100	}
 101
 102#define I9XX_CURSOR_OFFSETS \
 103	.cursor_offsets = { \
 104		[PIPE_A] = CURSOR_A_OFFSET, \
 105		[PIPE_B] = CURSOR_B_OFFSET, \
 106	}
 107
 108#define CHV_CURSOR_OFFSETS \
 109	.cursor_offsets = { \
 110		[PIPE_A] = CURSOR_A_OFFSET, \
 111		[PIPE_B] = CURSOR_B_OFFSET, \
 112		[PIPE_C] = CHV_CURSOR_C_OFFSET, \
 113	}
 114
 115#define IVB_CURSOR_OFFSETS \
 116	.cursor_offsets = { \
 117		[PIPE_A] = CURSOR_A_OFFSET, \
 118		[PIPE_B] = IVB_CURSOR_B_OFFSET, \
 119		[PIPE_C] = IVB_CURSOR_C_OFFSET, \
 120	}
 121
 122#define TGL_CURSOR_OFFSETS \
 123	.cursor_offsets = { \
 124		[PIPE_A] = CURSOR_A_OFFSET, \
 125		[PIPE_B] = IVB_CURSOR_B_OFFSET, \
 126		[PIPE_C] = IVB_CURSOR_C_OFFSET, \
 127		[PIPE_D] = TGL_CURSOR_D_OFFSET, \
 128	}
 129
 130#define I9XX_COLORS \
 131	.color = { .gamma_lut_size = 256 }
 132#define I965_COLORS \
 133	.color = { .gamma_lut_size = 129, \
 134		   .gamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING, \
 135	}
 136#define ILK_COLORS \
 137	.color = { .gamma_lut_size = 1024 }
 138#define IVB_COLORS \
 139	.color = { .degamma_lut_size = 1024, .gamma_lut_size = 1024 }
 140#define CHV_COLORS \
 141	.color = { .degamma_lut_size = 65, .gamma_lut_size = 257, \
 142		   .degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING, \
 143		   .gamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING, \
 144	}
 145#define GLK_COLORS \
 146	.color = { .degamma_lut_size = 33, .gamma_lut_size = 1024, \
 147		   .degamma_lut_tests = DRM_COLOR_LUT_NON_DECREASING | \
 148					DRM_COLOR_LUT_EQUAL_CHANNELS, \
 149	}
 150
 151/* Keep in gen based order, and chronological order within a gen */
 152
 153#define GEN_DEFAULT_PAGE_SIZES \
 154	.page_sizes = I915_GTT_PAGE_SIZE_4K
 155
 156#define GEN_DEFAULT_REGIONS \
 157	.memory_regions = REGION_SMEM | REGION_STOLEN
 158
 159#define I830_FEATURES \
 160	GEN(2), \
 161	.is_mobile = 1, \
 162	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
 163	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
 164	.display.has_overlay = 1, \
 165	.display.cursor_needs_physical = 1, \
 166	.display.overlay_needs_physical = 1, \
 167	.display.has_gmch = 1, \
 168	.gpu_reset_clobbers_display = true, \
 169	.hws_needs_physical = 1, \
 170	.unfenced_needs_alignment = 1, \
 171	.platform_engine_mask = BIT(RCS0), \
 172	.has_snoop = true, \
 173	.has_coherent_ggtt = false, \
 174	.dma_mask_size = 32, \
 175	I9XX_PIPE_OFFSETS, \
 176	I9XX_CURSOR_OFFSETS, \
 177	I9XX_COLORS, \
 178	GEN_DEFAULT_PAGE_SIZES, \
 179	GEN_DEFAULT_REGIONS
 180
 181#define I845_FEATURES \
 182	GEN(2), \
 183	.pipe_mask = BIT(PIPE_A), \
 184	.cpu_transcoder_mask = BIT(TRANSCODER_A), \
 185	.display.has_overlay = 1, \
 186	.display.overlay_needs_physical = 1, \
 187	.display.has_gmch = 1, \
 188	.gpu_reset_clobbers_display = true, \
 189	.hws_needs_physical = 1, \
 190	.unfenced_needs_alignment = 1, \
 191	.platform_engine_mask = BIT(RCS0), \
 192	.has_snoop = true, \
 193	.has_coherent_ggtt = false, \
 194	.dma_mask_size = 32, \
 195	I845_PIPE_OFFSETS, \
 196	I845_CURSOR_OFFSETS, \
 197	I9XX_COLORS, \
 198	GEN_DEFAULT_PAGE_SIZES, \
 199	GEN_DEFAULT_REGIONS
 200
 201static const struct intel_device_info i830_info = {
 202	I830_FEATURES,
 203	PLATFORM(INTEL_I830),
 204};
 205
 206static const struct intel_device_info i845g_info = {
 207	I845_FEATURES,
 208	PLATFORM(INTEL_I845G),
 209};
 210
 211static const struct intel_device_info i85x_info = {
 212	I830_FEATURES,
 213	PLATFORM(INTEL_I85X),
 214	.display.has_fbc = 1,
 215};
 216
 217static const struct intel_device_info i865g_info = {
 218	I845_FEATURES,
 219	PLATFORM(INTEL_I865G),
 220	.display.has_fbc = 1,
 221};
 222
 223#define GEN3_FEATURES \
 224	GEN(3), \
 225	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
 226	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
 227	.display.has_gmch = 1, \
 228	.gpu_reset_clobbers_display = true, \
 229	.platform_engine_mask = BIT(RCS0), \
 230	.has_snoop = true, \
 231	.has_coherent_ggtt = true, \
 232	.dma_mask_size = 32, \
 233	I9XX_PIPE_OFFSETS, \
 234	I9XX_CURSOR_OFFSETS, \
 235	I9XX_COLORS, \
 236	GEN_DEFAULT_PAGE_SIZES, \
 237	GEN_DEFAULT_REGIONS
 238
 239static const struct intel_device_info i915g_info = {
 240	GEN3_FEATURES,
 241	PLATFORM(INTEL_I915G),
 242	.has_coherent_ggtt = false,
 243	.display.cursor_needs_physical = 1,
 244	.display.has_overlay = 1,
 245	.display.overlay_needs_physical = 1,
 246	.hws_needs_physical = 1,
 247	.unfenced_needs_alignment = 1,
 248};
 249
 250static const struct intel_device_info i915gm_info = {
 251	GEN3_FEATURES,
 252	PLATFORM(INTEL_I915GM),
 253	.is_mobile = 1,
 254	.display.cursor_needs_physical = 1,
 255	.display.has_overlay = 1,
 256	.display.overlay_needs_physical = 1,
 257	.display.supports_tv = 1,
 258	.display.has_fbc = 1,
 259	.hws_needs_physical = 1,
 260	.unfenced_needs_alignment = 1,
 261};
 262
 263static const struct intel_device_info i945g_info = {
 264	GEN3_FEATURES,
 265	PLATFORM(INTEL_I945G),
 266	.display.has_hotplug = 1,
 267	.display.cursor_needs_physical = 1,
 268	.display.has_overlay = 1,
 269	.display.overlay_needs_physical = 1,
 270	.hws_needs_physical = 1,
 271	.unfenced_needs_alignment = 1,
 272};
 273
 274static const struct intel_device_info i945gm_info = {
 275	GEN3_FEATURES,
 276	PLATFORM(INTEL_I945GM),
 277	.is_mobile = 1,
 278	.display.has_hotplug = 1,
 279	.display.cursor_needs_physical = 1,
 280	.display.has_overlay = 1,
 281	.display.overlay_needs_physical = 1,
 282	.display.supports_tv = 1,
 283	.display.has_fbc = 1,
 284	.hws_needs_physical = 1,
 285	.unfenced_needs_alignment = 1,
 286};
 287
 288static const struct intel_device_info g33_info = {
 289	GEN3_FEATURES,
 290	PLATFORM(INTEL_G33),
 291	.display.has_hotplug = 1,
 292	.display.has_overlay = 1,
 293	.dma_mask_size = 36,
 294};
 295
 296static const struct intel_device_info pnv_g_info = {
 297	GEN3_FEATURES,
 298	PLATFORM(INTEL_PINEVIEW),
 299	.display.has_hotplug = 1,
 300	.display.has_overlay = 1,
 301	.dma_mask_size = 36,
 302};
 303
 304static const struct intel_device_info pnv_m_info = {
 305	GEN3_FEATURES,
 306	PLATFORM(INTEL_PINEVIEW),
 307	.is_mobile = 1,
 308	.display.has_hotplug = 1,
 309	.display.has_overlay = 1,
 310	.dma_mask_size = 36,
 311};
 312
 313#define GEN4_FEATURES \
 314	GEN(4), \
 315	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
 316	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
 317	.display.has_hotplug = 1, \
 318	.display.has_gmch = 1, \
 319	.gpu_reset_clobbers_display = true, \
 320	.platform_engine_mask = BIT(RCS0), \
 321	.has_snoop = true, \
 322	.has_coherent_ggtt = true, \
 323	.dma_mask_size = 36, \
 324	I9XX_PIPE_OFFSETS, \
 325	I9XX_CURSOR_OFFSETS, \
 326	I965_COLORS, \
 327	GEN_DEFAULT_PAGE_SIZES, \
 328	GEN_DEFAULT_REGIONS
 329
 330static const struct intel_device_info i965g_info = {
 331	GEN4_FEATURES,
 332	PLATFORM(INTEL_I965G),
 333	.display.has_overlay = 1,
 334	.hws_needs_physical = 1,
 335	.has_snoop = false,
 336};
 337
 338static const struct intel_device_info i965gm_info = {
 339	GEN4_FEATURES,
 340	PLATFORM(INTEL_I965GM),
 341	.is_mobile = 1,
 342	.display.has_fbc = 1,
 343	.display.has_overlay = 1,
 344	.display.supports_tv = 1,
 345	.hws_needs_physical = 1,
 346	.has_snoop = false,
 347};
 348
 349static const struct intel_device_info g45_info = {
 350	GEN4_FEATURES,
 351	PLATFORM(INTEL_G45),
 352	.platform_engine_mask = BIT(RCS0) | BIT(VCS0),
 353	.gpu_reset_clobbers_display = false,
 354};
 355
 356static const struct intel_device_info gm45_info = {
 357	GEN4_FEATURES,
 358	PLATFORM(INTEL_GM45),
 359	.is_mobile = 1,
 360	.display.has_fbc = 1,
 361	.display.supports_tv = 1,
 362	.platform_engine_mask = BIT(RCS0) | BIT(VCS0),
 363	.gpu_reset_clobbers_display = false,
 364};
 365
 366#define GEN5_FEATURES \
 367	GEN(5), \
 368	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
 369	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
 370	.display.has_hotplug = 1, \
 371	.platform_engine_mask = BIT(RCS0) | BIT(VCS0), \
 372	.has_snoop = true, \
 373	.has_coherent_ggtt = true, \
 374	/* ilk does support rc6, but we do not implement [power] contexts */ \
 375	.has_rc6 = 0, \
 376	.dma_mask_size = 36, \
 377	I9XX_PIPE_OFFSETS, \
 378	I9XX_CURSOR_OFFSETS, \
 379	ILK_COLORS, \
 380	GEN_DEFAULT_PAGE_SIZES, \
 381	GEN_DEFAULT_REGIONS
 382
 383static const struct intel_device_info ilk_d_info = {
 384	GEN5_FEATURES,
 385	PLATFORM(INTEL_IRONLAKE),
 386};
 387
 388static const struct intel_device_info ilk_m_info = {
 389	GEN5_FEATURES,
 390	PLATFORM(INTEL_IRONLAKE),
 391	.is_mobile = 1,
 392	.display.has_fbc = 1,
 393};
 394
 395#define GEN6_FEATURES \
 396	GEN(6), \
 397	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
 398	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
 399	.display.has_hotplug = 1, \
 400	.display.has_fbc = 1, \
 401	.platform_engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0), \
 402	.has_coherent_ggtt = true, \
 403	.has_llc = 1, \
 404	.has_rc6 = 1, \
 405	.has_rc6p = 1, \
 406	.has_rps = true, \
 407	.dma_mask_size = 40, \
 408	.ppgtt_type = INTEL_PPGTT_ALIASING, \
 409	.ppgtt_size = 31, \
 410	I9XX_PIPE_OFFSETS, \
 411	I9XX_CURSOR_OFFSETS, \
 412	ILK_COLORS, \
 413	GEN_DEFAULT_PAGE_SIZES, \
 414	GEN_DEFAULT_REGIONS
 415
 416#define SNB_D_PLATFORM \
 417	GEN6_FEATURES, \
 418	PLATFORM(INTEL_SANDYBRIDGE)
 419
 420static const struct intel_device_info snb_d_gt1_info = {
 421	SNB_D_PLATFORM,
 422	.gt = 1,
 423};
 424
 425static const struct intel_device_info snb_d_gt2_info = {
 426	SNB_D_PLATFORM,
 427	.gt = 2,
 428};
 429
 430#define SNB_M_PLATFORM \
 431	GEN6_FEATURES, \
 432	PLATFORM(INTEL_SANDYBRIDGE), \
 433	.is_mobile = 1
 434
 435
 436static const struct intel_device_info snb_m_gt1_info = {
 437	SNB_M_PLATFORM,
 438	.gt = 1,
 439};
 440
 441static const struct intel_device_info snb_m_gt2_info = {
 442	SNB_M_PLATFORM,
 443	.gt = 2,
 444};
 445
 446#define GEN7_FEATURES  \
 447	GEN(7), \
 448	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C), \
 449	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | BIT(TRANSCODER_C), \
 450	.display.has_hotplug = 1, \
 451	.display.has_fbc = 1, \
 452	.platform_engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0), \
 453	.has_coherent_ggtt = true, \
 454	.has_llc = 1, \
 455	.has_rc6 = 1, \
 456	.has_rc6p = 1, \
 457	.has_rps = true, \
 458	.dma_mask_size = 40, \
 459	.ppgtt_type = INTEL_PPGTT_ALIASING, \
 460	.ppgtt_size = 31, \
 461	IVB_PIPE_OFFSETS, \
 462	IVB_CURSOR_OFFSETS, \
 463	IVB_COLORS, \
 464	GEN_DEFAULT_PAGE_SIZES, \
 465	GEN_DEFAULT_REGIONS
 466
 467#define IVB_D_PLATFORM \
 468	GEN7_FEATURES, \
 469	PLATFORM(INTEL_IVYBRIDGE), \
 470	.has_l3_dpf = 1
 471
 472static const struct intel_device_info ivb_d_gt1_info = {
 473	IVB_D_PLATFORM,
 474	.gt = 1,
 475};
 476
 477static const struct intel_device_info ivb_d_gt2_info = {
 478	IVB_D_PLATFORM,
 479	.gt = 2,
 480};
 481
 482#define IVB_M_PLATFORM \
 483	GEN7_FEATURES, \
 484	PLATFORM(INTEL_IVYBRIDGE), \
 485	.is_mobile = 1, \
 486	.has_l3_dpf = 1
 487
 488static const struct intel_device_info ivb_m_gt1_info = {
 489	IVB_M_PLATFORM,
 490	.gt = 1,
 491};
 492
 493static const struct intel_device_info ivb_m_gt2_info = {
 494	IVB_M_PLATFORM,
 495	.gt = 2,
 496};
 497
 498static const struct intel_device_info ivb_q_info = {
 499	GEN7_FEATURES,
 500	PLATFORM(INTEL_IVYBRIDGE),
 501	.gt = 2,
 502	.pipe_mask = 0, /* legal, last one wins */
 503	.cpu_transcoder_mask = 0,
 504	.has_l3_dpf = 1,
 505};
 506
 507static const struct intel_device_info vlv_info = {
 508	PLATFORM(INTEL_VALLEYVIEW),
 509	GEN(7),
 510	.is_lp = 1,
 511	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B),
 512	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B),
 513	.has_runtime_pm = 1,
 514	.has_rc6 = 1,
 515	.has_rps = true,
 516	.display.has_gmch = 1,
 517	.display.has_hotplug = 1,
 518	.dma_mask_size = 40,
 519	.ppgtt_type = INTEL_PPGTT_ALIASING,
 520	.ppgtt_size = 31,
 521	.has_snoop = true,
 522	.has_coherent_ggtt = false,
 523	.platform_engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0),
 524	.display_mmio_offset = VLV_DISPLAY_BASE,
 525	I9XX_PIPE_OFFSETS,
 526	I9XX_CURSOR_OFFSETS,
 527	I965_COLORS,
 528	GEN_DEFAULT_PAGE_SIZES,
 529	GEN_DEFAULT_REGIONS,
 530};
 531
 532#define G75_FEATURES  \
 533	GEN7_FEATURES, \
 534	.platform_engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0), \
 535	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
 536		BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP), \
 537	.display.has_ddi = 1, \
 538	.has_fpga_dbg = 1, \
 539	.display.has_psr = 1, \
 540	.display.has_psr_hw_tracking = 1, \
 541	.display.has_dp_mst = 1, \
 542	.has_rc6p = 0 /* RC6p removed-by HSW */, \
 543	HSW_PIPE_OFFSETS, \
 544	.has_runtime_pm = 1
 545
 546#define HSW_PLATFORM \
 547	G75_FEATURES, \
 548	PLATFORM(INTEL_HASWELL), \
 549	.has_l3_dpf = 1
 550
 551static const struct intel_device_info hsw_gt1_info = {
 552	HSW_PLATFORM,
 553	.gt = 1,
 554};
 555
 556static const struct intel_device_info hsw_gt2_info = {
 557	HSW_PLATFORM,
 558	.gt = 2,
 559};
 560
 561static const struct intel_device_info hsw_gt3_info = {
 562	HSW_PLATFORM,
 563	.gt = 3,
 564};
 565
 566#define GEN8_FEATURES \
 567	G75_FEATURES, \
 568	GEN(8), \
 569	.has_logical_ring_contexts = 1, \
 570	.dma_mask_size = 39, \
 571	.ppgtt_type = INTEL_PPGTT_FULL, \
 572	.ppgtt_size = 48, \
 573	.has_64bit_reloc = 1, \
 574	.has_reset_engine = 1
 575
 576#define BDW_PLATFORM \
 577	GEN8_FEATURES, \
 578	PLATFORM(INTEL_BROADWELL)
 579
 580static const struct intel_device_info bdw_gt1_info = {
 581	BDW_PLATFORM,
 582	.gt = 1,
 583};
 584
 585static const struct intel_device_info bdw_gt2_info = {
 586	BDW_PLATFORM,
 587	.gt = 2,
 588};
 589
 590static const struct intel_device_info bdw_rsvd_info = {
 591	BDW_PLATFORM,
 592	.gt = 3,
 593	/* According to the device ID those devices are GT3, they were
 594	 * previously treated as not GT3, keep it like that.
 595	 */
 596};
 597
 598static const struct intel_device_info bdw_gt3_info = {
 599	BDW_PLATFORM,
 600	.gt = 3,
 601	.platform_engine_mask =
 602		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1),
 603};
 604
 605static const struct intel_device_info chv_info = {
 606	PLATFORM(INTEL_CHERRYVIEW),
 607	GEN(8),
 608	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
 609	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | BIT(TRANSCODER_C),
 610	.display.has_hotplug = 1,
 611	.is_lp = 1,
 612	.platform_engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0),
 613	.has_64bit_reloc = 1,
 614	.has_runtime_pm = 1,
 615	.has_rc6 = 1,
 616	.has_rps = true,
 617	.has_logical_ring_contexts = 1,
 618	.display.has_gmch = 1,
 619	.dma_mask_size = 39,
 620	.ppgtt_type = INTEL_PPGTT_FULL,
 621	.ppgtt_size = 32,
 622	.has_reset_engine = 1,
 623	.has_snoop = true,
 624	.has_coherent_ggtt = false,
 625	.display_mmio_offset = VLV_DISPLAY_BASE,
 626	CHV_PIPE_OFFSETS,
 627	CHV_CURSOR_OFFSETS,
 628	CHV_COLORS,
 629	GEN_DEFAULT_PAGE_SIZES,
 630	GEN_DEFAULT_REGIONS,
 631};
 632
 633#define GEN9_DEFAULT_PAGE_SIZES \
 634	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
 635		      I915_GTT_PAGE_SIZE_64K
 636
 637#define GEN9_FEATURES \
 638	GEN8_FEATURES, \
 639	GEN(9), \
 640	GEN9_DEFAULT_PAGE_SIZES, \
 641	.has_logical_ring_preemption = 1, \
 642	.display.has_csr = 1, \
 643	.has_gt_uc = 1, \
 644	.display.has_hdcp = 1, \
 645	.display.has_ipc = 1, \
 646	.ddb_size = 896, \
 647	.num_supported_dbuf_slices = 1
 648
 649#define SKL_PLATFORM \
 650	GEN9_FEATURES, \
 651	PLATFORM(INTEL_SKYLAKE)
 652
 653static const struct intel_device_info skl_gt1_info = {
 654	SKL_PLATFORM,
 655	.gt = 1,
 656};
 657
 658static const struct intel_device_info skl_gt2_info = {
 659	SKL_PLATFORM,
 660	.gt = 2,
 661};
 662
 663#define SKL_GT3_PLUS_PLATFORM \
 664	SKL_PLATFORM, \
 665	.platform_engine_mask = \
 666		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1)
 667
 668
 669static const struct intel_device_info skl_gt3_info = {
 670	SKL_GT3_PLUS_PLATFORM,
 671	.gt = 3,
 672};
 673
 674static const struct intel_device_info skl_gt4_info = {
 675	SKL_GT3_PLUS_PLATFORM,
 676	.gt = 4,
 677};
 678
 679#define GEN9_LP_FEATURES \
 680	GEN(9), \
 681	.is_lp = 1, \
 682	.num_supported_dbuf_slices = 1, \
 683	.display.has_hotplug = 1, \
 684	.platform_engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0), \
 685	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C), \
 686	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
 687		BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP) | \
 688		BIT(TRANSCODER_DSI_A) | BIT(TRANSCODER_DSI_C), \
 689	.has_64bit_reloc = 1, \
 690	.display.has_ddi = 1, \
 691	.has_fpga_dbg = 1, \
 692	.display.has_fbc = 1, \
 693	.display.has_hdcp = 1, \
 694	.display.has_psr = 1, \
 695	.display.has_psr_hw_tracking = 1, \
 696	.has_runtime_pm = 1, \
 697	.display.has_csr = 1, \
 698	.has_rc6 = 1, \
 699	.has_rps = true, \
 700	.display.has_dp_mst = 1, \
 701	.has_logical_ring_contexts = 1, \
 702	.has_logical_ring_preemption = 1, \
 703	.has_gt_uc = 1, \
 704	.dma_mask_size = 39, \
 705	.ppgtt_type = INTEL_PPGTT_FULL, \
 706	.ppgtt_size = 48, \
 707	.has_reset_engine = 1, \
 708	.has_snoop = true, \
 709	.has_coherent_ggtt = false, \
 710	.display.has_ipc = 1, \
 711	HSW_PIPE_OFFSETS, \
 712	IVB_CURSOR_OFFSETS, \
 713	IVB_COLORS, \
 714	GEN9_DEFAULT_PAGE_SIZES, \
 715	GEN_DEFAULT_REGIONS
 716
 717static const struct intel_device_info bxt_info = {
 718	GEN9_LP_FEATURES,
 719	PLATFORM(INTEL_BROXTON),
 720	.ddb_size = 512,
 721};
 722
 723static const struct intel_device_info glk_info = {
 724	GEN9_LP_FEATURES,
 725	PLATFORM(INTEL_GEMINILAKE),
 726	.ddb_size = 1024,
 727	GLK_COLORS,
 728};
 729
 730#define KBL_PLATFORM \
 731	GEN9_FEATURES, \
 732	PLATFORM(INTEL_KABYLAKE)
 733
 734static const struct intel_device_info kbl_gt1_info = {
 735	KBL_PLATFORM,
 736	.gt = 1,
 737};
 738
 739static const struct intel_device_info kbl_gt2_info = {
 740	KBL_PLATFORM,
 741	.gt = 2,
 742};
 743
 744static const struct intel_device_info kbl_gt3_info = {
 745	KBL_PLATFORM,
 746	.gt = 3,
 747	.platform_engine_mask =
 748		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1),
 749};
 750
 751#define CFL_PLATFORM \
 752	GEN9_FEATURES, \
 753	PLATFORM(INTEL_COFFEELAKE)
 754
 755static const struct intel_device_info cfl_gt1_info = {
 756	CFL_PLATFORM,
 757	.gt = 1,
 758};
 759
 760static const struct intel_device_info cfl_gt2_info = {
 761	CFL_PLATFORM,
 762	.gt = 2,
 763};
 764
 765static const struct intel_device_info cfl_gt3_info = {
 766	CFL_PLATFORM,
 767	.gt = 3,
 768	.platform_engine_mask =
 769		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1),
 770};
 771
 772#define CML_PLATFORM \
 773	GEN9_FEATURES, \
 774	PLATFORM(INTEL_COMETLAKE)
 775
 776static const struct intel_device_info cml_gt1_info = {
 777	CML_PLATFORM,
 778	.gt = 1,
 779};
 780
 781static const struct intel_device_info cml_gt2_info = {
 782	CML_PLATFORM,
 783	.gt = 2,
 784};
 785
 786#define GEN10_FEATURES \
 787	GEN9_FEATURES, \
 788	GEN(10), \
 789	.ddb_size = 1024, \
 790	.display.has_dsc = 1, \
 791	.has_coherent_ggtt = false, \
 792	GLK_COLORS
 793
 794static const struct intel_device_info cnl_info = {
 795	GEN10_FEATURES,
 796	PLATFORM(INTEL_CANNONLAKE),
 797	.gt = 2,
 798};
 799
 800#define GEN11_DEFAULT_PAGE_SIZES \
 801	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
 802		      I915_GTT_PAGE_SIZE_64K | \
 803		      I915_GTT_PAGE_SIZE_2M
 804
 805#define GEN11_FEATURES \
 806	GEN10_FEATURES, \
 807	GEN11_DEFAULT_PAGE_SIZES, \
 808	.abox_mask = BIT(0), \
 809	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
 810		BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP) | \
 811		BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1), \
 812	.pipe_offsets = { \
 813		[TRANSCODER_A] = PIPE_A_OFFSET, \
 814		[TRANSCODER_B] = PIPE_B_OFFSET, \
 815		[TRANSCODER_C] = PIPE_C_OFFSET, \
 816		[TRANSCODER_EDP] = PIPE_EDP_OFFSET, \
 817		[TRANSCODER_DSI_0] = PIPE_DSI0_OFFSET, \
 818		[TRANSCODER_DSI_1] = PIPE_DSI1_OFFSET, \
 819	}, \
 820	.trans_offsets = { \
 821		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
 822		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
 823		[TRANSCODER_C] = TRANSCODER_C_OFFSET, \
 824		[TRANSCODER_EDP] = TRANSCODER_EDP_OFFSET, \
 825		[TRANSCODER_DSI_0] = TRANSCODER_DSI0_OFFSET, \
 826		[TRANSCODER_DSI_1] = TRANSCODER_DSI1_OFFSET, \
 827	}, \
 828	GEN(11), \
 829	.ddb_size = 2048, \
 830	.num_supported_dbuf_slices = 2, \
 831	.has_logical_ring_elsq = 1, \
 832	.color = { .degamma_lut_size = 33, .gamma_lut_size = 262145 }
 833
 834static const struct intel_device_info icl_info = {
 835	GEN11_FEATURES,
 836	PLATFORM(INTEL_ICELAKE),
 837	.platform_engine_mask =
 838		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0) | BIT(VCS2),
 839};
 840
 841static const struct intel_device_info ehl_info = {
 842	GEN11_FEATURES,
 843	PLATFORM(INTEL_ELKHARTLAKE),
 844	.require_force_probe = 1,
 845	.platform_engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(VCS0) | BIT(VECS0),
 846	.ppgtt_size = 36,
 847};
 848
 849#define GEN12_FEATURES \
 850	GEN11_FEATURES, \
 851	GEN(12), \
 852	.abox_mask = GENMASK(2, 1), \
 853	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D), \
 854	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
 855		BIT(TRANSCODER_C) | BIT(TRANSCODER_D) | \
 856		BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1), \
 857	.pipe_offsets = { \
 858		[TRANSCODER_A] = PIPE_A_OFFSET, \
 859		[TRANSCODER_B] = PIPE_B_OFFSET, \
 860		[TRANSCODER_C] = PIPE_C_OFFSET, \
 861		[TRANSCODER_D] = PIPE_D_OFFSET, \
 862		[TRANSCODER_DSI_0] = PIPE_DSI0_OFFSET, \
 863		[TRANSCODER_DSI_1] = PIPE_DSI1_OFFSET, \
 864	}, \
 865	.trans_offsets = { \
 866		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
 867		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
 868		[TRANSCODER_C] = TRANSCODER_C_OFFSET, \
 869		[TRANSCODER_D] = TRANSCODER_D_OFFSET, \
 870		[TRANSCODER_DSI_0] = TRANSCODER_DSI0_OFFSET, \
 871		[TRANSCODER_DSI_1] = TRANSCODER_DSI1_OFFSET, \
 872	}, \
 873	TGL_CURSOR_OFFSETS, \
 874	.has_global_mocs = 1, \
 875	.display.has_dsb = 1
 876
 877static const struct intel_device_info tgl_info = {
 878	GEN12_FEATURES,
 879	PLATFORM(INTEL_TIGERLAKE),
 880	.display.has_modular_fia = 1,
 881	.platform_engine_mask =
 882		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0) | BIT(VCS2),
 883};
 884
 885static const struct intel_device_info rkl_info = {
 886	GEN12_FEATURES,
 887	PLATFORM(INTEL_ROCKETLAKE),
 888	.abox_mask = BIT(0),
 889	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
 890	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
 891		BIT(TRANSCODER_C),
 892	.require_force_probe = 1,
 893	.display.has_psr_hw_tracking = 0,
 894	.platform_engine_mask =
 895		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0),
 896};
 897
 898#define GEN12_DGFX_FEATURES \
 899	GEN12_FEATURES, \
 900	.memory_regions = REGION_SMEM | REGION_LMEM, \
 901	.has_master_unit_irq = 1, \
 902	.is_dgfx = 1
 903
 904static const struct intel_device_info dg1_info __maybe_unused = {
 905	GEN12_DGFX_FEATURES,
 906	PLATFORM(INTEL_DG1),
 907	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
 908	.require_force_probe = 1,
 909	.platform_engine_mask =
 910		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) |
 911		BIT(VCS0) | BIT(VCS2),
 912};
 913
 914#undef GEN
 915#undef PLATFORM
 916
 917/*
 918 * Make sure any device matches here are from most specific to most
 919 * general.  For example, since the Quanta match is based on the subsystem
 920 * and subvendor IDs, we need it to come before the more general IVB
 921 * PCI ID matches, otherwise we'll use the wrong info struct above.
 922 */
 923static const struct pci_device_id pciidlist[] = {
 924	INTEL_I830_IDS(&i830_info),
 925	INTEL_I845G_IDS(&i845g_info),
 926	INTEL_I85X_IDS(&i85x_info),
 927	INTEL_I865G_IDS(&i865g_info),
 928	INTEL_I915G_IDS(&i915g_info),
 929	INTEL_I915GM_IDS(&i915gm_info),
 930	INTEL_I945G_IDS(&i945g_info),
 931	INTEL_I945GM_IDS(&i945gm_info),
 932	INTEL_I965G_IDS(&i965g_info),
 933	INTEL_G33_IDS(&g33_info),
 934	INTEL_I965GM_IDS(&i965gm_info),
 935	INTEL_GM45_IDS(&gm45_info),
 936	INTEL_G45_IDS(&g45_info),
 937	INTEL_PINEVIEW_G_IDS(&pnv_g_info),
 938	INTEL_PINEVIEW_M_IDS(&pnv_m_info),
 939	INTEL_IRONLAKE_D_IDS(&ilk_d_info),
 940	INTEL_IRONLAKE_M_IDS(&ilk_m_info),
 941	INTEL_SNB_D_GT1_IDS(&snb_d_gt1_info),
 942	INTEL_SNB_D_GT2_IDS(&snb_d_gt2_info),
 943	INTEL_SNB_M_GT1_IDS(&snb_m_gt1_info),
 944	INTEL_SNB_M_GT2_IDS(&snb_m_gt2_info),
 945	INTEL_IVB_Q_IDS(&ivb_q_info), /* must be first IVB */
 946	INTEL_IVB_M_GT1_IDS(&ivb_m_gt1_info),
 947	INTEL_IVB_M_GT2_IDS(&ivb_m_gt2_info),
 948	INTEL_IVB_D_GT1_IDS(&ivb_d_gt1_info),
 949	INTEL_IVB_D_GT2_IDS(&ivb_d_gt2_info),
 950	INTEL_HSW_GT1_IDS(&hsw_gt1_info),
 951	INTEL_HSW_GT2_IDS(&hsw_gt2_info),
 952	INTEL_HSW_GT3_IDS(&hsw_gt3_info),
 953	INTEL_VLV_IDS(&vlv_info),
 954	INTEL_BDW_GT1_IDS(&bdw_gt1_info),
 955	INTEL_BDW_GT2_IDS(&bdw_gt2_info),
 956	INTEL_BDW_GT3_IDS(&bdw_gt3_info),
 957	INTEL_BDW_RSVD_IDS(&bdw_rsvd_info),
 958	INTEL_CHV_IDS(&chv_info),
 959	INTEL_SKL_GT1_IDS(&skl_gt1_info),
 960	INTEL_SKL_GT2_IDS(&skl_gt2_info),
 961	INTEL_SKL_GT3_IDS(&skl_gt3_info),
 962	INTEL_SKL_GT4_IDS(&skl_gt4_info),
 963	INTEL_BXT_IDS(&bxt_info),
 964	INTEL_GLK_IDS(&glk_info),
 965	INTEL_KBL_GT1_IDS(&kbl_gt1_info),
 966	INTEL_KBL_GT2_IDS(&kbl_gt2_info),
 967	INTEL_KBL_GT3_IDS(&kbl_gt3_info),
 968	INTEL_KBL_GT4_IDS(&kbl_gt3_info),
 969	INTEL_AML_KBL_GT2_IDS(&kbl_gt2_info),
 970	INTEL_CFL_S_GT1_IDS(&cfl_gt1_info),
 971	INTEL_CFL_S_GT2_IDS(&cfl_gt2_info),
 972	INTEL_CFL_H_GT1_IDS(&cfl_gt1_info),
 973	INTEL_CFL_H_GT2_IDS(&cfl_gt2_info),
 974	INTEL_CFL_U_GT2_IDS(&cfl_gt2_info),
 975	INTEL_CFL_U_GT3_IDS(&cfl_gt3_info),
 976	INTEL_WHL_U_GT1_IDS(&cfl_gt1_info),
 977	INTEL_WHL_U_GT2_IDS(&cfl_gt2_info),
 978	INTEL_AML_CFL_GT2_IDS(&cfl_gt2_info),
 979	INTEL_WHL_U_GT3_IDS(&cfl_gt3_info),
 980	INTEL_CML_GT1_IDS(&cml_gt1_info),
 981	INTEL_CML_GT2_IDS(&cml_gt2_info),
 982	INTEL_CML_U_GT1_IDS(&cml_gt1_info),
 983	INTEL_CML_U_GT2_IDS(&cml_gt2_info),
 984	INTEL_CNL_IDS(&cnl_info),
 985	INTEL_ICL_11_IDS(&icl_info),
 986	INTEL_EHL_IDS(&ehl_info),
 987	INTEL_TGL_12_IDS(&tgl_info),
 988	INTEL_RKL_IDS(&rkl_info),
 989	{0, 0, 0}
 990};
 991MODULE_DEVICE_TABLE(pci, pciidlist);
 992
 993static void i915_pci_remove(struct pci_dev *pdev)
 994{
 995	struct drm_i915_private *i915;
 996
 997	i915 = pci_get_drvdata(pdev);
 998	if (!i915) /* driver load aborted, nothing to cleanup */
 999		return;
1000
1001	i915_driver_remove(i915);
1002	pci_set_drvdata(pdev, NULL);
1003}
1004
1005/* is device_id present in comma separated list of ids */
1006static bool force_probe(u16 device_id, const char *devices)
1007{
1008	char *s, *p, *tok;
1009	bool ret;
1010
1011	if (!devices || !*devices)
1012		return false;
1013
1014	/* match everything */
1015	if (strcmp(devices, "*") == 0)
1016		return true;
1017
1018	s = kstrdup(devices, GFP_KERNEL);
1019	if (!s)
1020		return false;
1021
1022	for (p = s, ret = false; (tok = strsep(&p, ",")) != NULL; ) {
1023		u16 val;
1024
1025		if (kstrtou16(tok, 16, &val) == 0 && val == device_id) {
1026			ret = true;
1027			break;
1028		}
1029	}
1030
1031	kfree(s);
1032
1033	return ret;
1034}
1035
1036static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1037{
1038	struct intel_device_info *intel_info =
1039		(struct intel_device_info *) ent->driver_data;
1040	int err;
1041
1042	if (intel_info->require_force_probe &&
1043	    !force_probe(pdev->device, i915_modparams.force_probe)) {
1044		dev_info(&pdev->dev,
1045			 "Your graphics device %04x is not properly supported by the driver in this\n"
1046			 "kernel version. To force driver probe anyway, use i915.force_probe=%04x\n"
1047			 "module parameter or CONFIG_DRM_I915_FORCE_PROBE=%04x configuration option,\n"
1048			 "or (recommended) check for kernel updates.\n",
1049			 pdev->device, pdev->device, pdev->device);
1050		return -ENODEV;
1051	}
1052
1053	/* Only bind to function 0 of the device. Early generations
1054	 * used function 1 as a placeholder for multi-head. This causes
1055	 * us confusion instead, especially on the systems where both
1056	 * functions have the same PCI-ID!
1057	 */
1058	if (PCI_FUNC(pdev->devfn))
1059		return -ENODEV;
1060
1061	/*
1062	 * apple-gmux is needed on dual GPU MacBook Pro
1063	 * to probe the panel if we're the inactive GPU.
1064	 */
1065	if (vga_switcheroo_client_probe_defer(pdev))
1066		return -EPROBE_DEFER;
1067
1068	err = i915_driver_probe(pdev, ent);
1069	if (err)
1070		return err;
1071
1072	if (i915_inject_probe_failure(pci_get_drvdata(pdev))) {
1073		i915_pci_remove(pdev);
1074		return -ENODEV;
1075	}
1076
1077	err = i915_live_selftests(pdev);
1078	if (err) {
1079		i915_pci_remove(pdev);
1080		return err > 0 ? -ENOTTY : err;
1081	}
1082
1083	err = i915_perf_selftests(pdev);
1084	if (err) {
1085		i915_pci_remove(pdev);
1086		return err > 0 ? -ENOTTY : err;
1087	}
1088
1089	return 0;
1090}
1091
1092static struct pci_driver i915_pci_driver = {
1093	.name = DRIVER_NAME,
1094	.id_table = pciidlist,
1095	.probe = i915_pci_probe,
1096	.remove = i915_pci_remove,
1097	.driver.pm = &i915_pm_ops,
1098};
1099
1100static int __init i915_init(void)
1101{
1102	bool use_kms = true;
1103	int err;
1104
1105	err = i915_globals_init();
1106	if (err)
1107		return err;
1108
1109	err = i915_mock_selftests();
1110	if (err)
1111		return err > 0 ? 0 : err;
1112
1113	/*
1114	 * Enable KMS by default, unless explicitly overriden by
1115	 * either the i915.modeset prarameter or by the
1116	 * vga_text_mode_force boot option.
1117	 */
1118
1119	if (i915_modparams.modeset == 0)
1120		use_kms = false;
1121
1122	if (vgacon_text_force() && i915_modparams.modeset == -1)
1123		use_kms = false;
1124
1125	if (!use_kms) {
1126		/* Silently fail loading to not upset userspace. */
1127		DRM_DEBUG_DRIVER("KMS disabled.\n");
1128		return 0;
1129	}
1130
1131	err = pci_register_driver(&i915_pci_driver);
1132	if (err)
1133		return err;
1134
1135	i915_perf_sysctl_register();
1136	return 0;
1137}
1138
1139static void __exit i915_exit(void)
1140{
1141	if (!i915_pci_driver.driver.owner)
1142		return;
1143
1144	i915_perf_sysctl_unregister();
1145	pci_unregister_driver(&i915_pci_driver);
1146	i915_globals_exit();
1147}
1148
1149module_init(i915_init);
1150module_exit(i915_exit);
1151
1152MODULE_AUTHOR("Tungsten Graphics, Inc.");
1153MODULE_AUTHOR("Intel Corporation");
1154
1155MODULE_DESCRIPTION(DRIVER_DESC);
1156MODULE_LICENSE("GPL and additional rights");