xref: /linux/drivers/gpu/drm/i915/i915_pci.c (revision 5a7eeb8ba143d860050ecea924a8f074f02d8023)
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 	.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 	.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 
201 static const struct intel_device_info i830_info = {
202 	I830_FEATURES,
203 	PLATFORM(INTEL_I830),
204 };
205 
206 static const struct intel_device_info i845g_info = {
207 	I845_FEATURES,
208 	PLATFORM(INTEL_I845G),
209 };
210 
211 static const struct intel_device_info i85x_info = {
212 	I830_FEATURES,
213 	PLATFORM(INTEL_I85X),
214 	.display.has_fbc = 1,
215 };
216 
217 static const struct intel_device_info i865g_info = {
218 	I845_FEATURES,
219 	PLATFORM(INTEL_I865G),
220 };
221 
222 #define GEN3_FEATURES \
223 	GEN(3), \
224 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
225 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
226 	.display.has_gmch = 1, \
227 	.gpu_reset_clobbers_display = true, \
228 	.engine_mask = BIT(RCS0), \
229 	.has_snoop = true, \
230 	.has_coherent_ggtt = true, \
231 	.dma_mask_size = 32, \
232 	I9XX_PIPE_OFFSETS, \
233 	I9XX_CURSOR_OFFSETS, \
234 	I9XX_COLORS, \
235 	GEN_DEFAULT_PAGE_SIZES, \
236 	GEN_DEFAULT_REGIONS
237 
238 static const struct intel_device_info i915g_info = {
239 	GEN3_FEATURES,
240 	PLATFORM(INTEL_I915G),
241 	.has_coherent_ggtt = false,
242 	.display.cursor_needs_physical = 1,
243 	.display.has_overlay = 1,
244 	.display.overlay_needs_physical = 1,
245 	.hws_needs_physical = 1,
246 	.unfenced_needs_alignment = 1,
247 };
248 
249 static const struct intel_device_info i915gm_info = {
250 	GEN3_FEATURES,
251 	PLATFORM(INTEL_I915GM),
252 	.is_mobile = 1,
253 	.display.cursor_needs_physical = 1,
254 	.display.has_overlay = 1,
255 	.display.overlay_needs_physical = 1,
256 	.display.supports_tv = 1,
257 	.display.has_fbc = 1,
258 	.hws_needs_physical = 1,
259 	.unfenced_needs_alignment = 1,
260 };
261 
262 static const struct intel_device_info i945g_info = {
263 	GEN3_FEATURES,
264 	PLATFORM(INTEL_I945G),
265 	.display.has_hotplug = 1,
266 	.display.cursor_needs_physical = 1,
267 	.display.has_overlay = 1,
268 	.display.overlay_needs_physical = 1,
269 	.hws_needs_physical = 1,
270 	.unfenced_needs_alignment = 1,
271 };
272 
273 static const struct intel_device_info i945gm_info = {
274 	GEN3_FEATURES,
275 	PLATFORM(INTEL_I945GM),
276 	.is_mobile = 1,
277 	.display.has_hotplug = 1,
278 	.display.cursor_needs_physical = 1,
279 	.display.has_overlay = 1,
280 	.display.overlay_needs_physical = 1,
281 	.display.supports_tv = 1,
282 	.display.has_fbc = 1,
283 	.hws_needs_physical = 1,
284 	.unfenced_needs_alignment = 1,
285 };
286 
287 static const struct intel_device_info g33_info = {
288 	GEN3_FEATURES,
289 	PLATFORM(INTEL_G33),
290 	.display.has_hotplug = 1,
291 	.display.has_overlay = 1,
292 	.dma_mask_size = 36,
293 };
294 
295 static const struct intel_device_info pnv_g_info = {
296 	GEN3_FEATURES,
297 	PLATFORM(INTEL_PINEVIEW),
298 	.display.has_hotplug = 1,
299 	.display.has_overlay = 1,
300 	.dma_mask_size = 36,
301 };
302 
303 static const struct intel_device_info pnv_m_info = {
304 	GEN3_FEATURES,
305 	PLATFORM(INTEL_PINEVIEW),
306 	.is_mobile = 1,
307 	.display.has_hotplug = 1,
308 	.display.has_overlay = 1,
309 	.dma_mask_size = 36,
310 };
311 
312 #define GEN4_FEATURES \
313 	GEN(4), \
314 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
315 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
316 	.display.has_hotplug = 1, \
317 	.display.has_gmch = 1, \
318 	.gpu_reset_clobbers_display = true, \
319 	.engine_mask = BIT(RCS0), \
320 	.has_snoop = true, \
321 	.has_coherent_ggtt = true, \
322 	.dma_mask_size = 36, \
323 	I9XX_PIPE_OFFSETS, \
324 	I9XX_CURSOR_OFFSETS, \
325 	I965_COLORS, \
326 	GEN_DEFAULT_PAGE_SIZES, \
327 	GEN_DEFAULT_REGIONS
328 
329 static const struct intel_device_info i965g_info = {
330 	GEN4_FEATURES,
331 	PLATFORM(INTEL_I965G),
332 	.display.has_overlay = 1,
333 	.hws_needs_physical = 1,
334 	.has_snoop = false,
335 };
336 
337 static const struct intel_device_info i965gm_info = {
338 	GEN4_FEATURES,
339 	PLATFORM(INTEL_I965GM),
340 	.is_mobile = 1,
341 	.display.has_fbc = 1,
342 	.display.has_overlay = 1,
343 	.display.supports_tv = 1,
344 	.hws_needs_physical = 1,
345 	.has_snoop = false,
346 };
347 
348 static const struct intel_device_info g45_info = {
349 	GEN4_FEATURES,
350 	PLATFORM(INTEL_G45),
351 	.engine_mask = BIT(RCS0) | BIT(VCS0),
352 	.gpu_reset_clobbers_display = false,
353 };
354 
355 static const struct intel_device_info gm45_info = {
356 	GEN4_FEATURES,
357 	PLATFORM(INTEL_GM45),
358 	.is_mobile = 1,
359 	.display.has_fbc = 1,
360 	.display.supports_tv = 1,
361 	.engine_mask = BIT(RCS0) | BIT(VCS0),
362 	.gpu_reset_clobbers_display = false,
363 };
364 
365 #define GEN5_FEATURES \
366 	GEN(5), \
367 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
368 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
369 	.display.has_hotplug = 1, \
370 	.engine_mask = BIT(RCS0) | BIT(VCS0), \
371 	.has_snoop = true, \
372 	.has_coherent_ggtt = true, \
373 	/* ilk does support rc6, but we do not implement [power] contexts */ \
374 	.has_rc6 = 0, \
375 	.dma_mask_size = 36, \
376 	I9XX_PIPE_OFFSETS, \
377 	I9XX_CURSOR_OFFSETS, \
378 	ILK_COLORS, \
379 	GEN_DEFAULT_PAGE_SIZES, \
380 	GEN_DEFAULT_REGIONS
381 
382 static const struct intel_device_info ilk_d_info = {
383 	GEN5_FEATURES,
384 	PLATFORM(INTEL_IRONLAKE),
385 };
386 
387 static const struct intel_device_info ilk_m_info = {
388 	GEN5_FEATURES,
389 	PLATFORM(INTEL_IRONLAKE),
390 	.is_mobile = 1,
391 	.display.has_fbc = 1,
392 };
393 
394 #define GEN6_FEATURES \
395 	GEN(6), \
396 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B), \
397 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B), \
398 	.display.has_hotplug = 1, \
399 	.display.has_fbc = 1, \
400 	.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0), \
401 	.has_coherent_ggtt = true, \
402 	.has_llc = 1, \
403 	.has_rc6 = 1, \
404 	.has_rc6p = 1, \
405 	.has_rps = true, \
406 	.dma_mask_size = 40, \
407 	.ppgtt_type = INTEL_PPGTT_ALIASING, \
408 	.ppgtt_size = 31, \
409 	I9XX_PIPE_OFFSETS, \
410 	I9XX_CURSOR_OFFSETS, \
411 	ILK_COLORS, \
412 	GEN_DEFAULT_PAGE_SIZES, \
413 	GEN_DEFAULT_REGIONS
414 
415 #define SNB_D_PLATFORM \
416 	GEN6_FEATURES, \
417 	PLATFORM(INTEL_SANDYBRIDGE)
418 
419 static const struct intel_device_info snb_d_gt1_info = {
420 	SNB_D_PLATFORM,
421 	.gt = 1,
422 };
423 
424 static const struct intel_device_info snb_d_gt2_info = {
425 	SNB_D_PLATFORM,
426 	.gt = 2,
427 };
428 
429 #define SNB_M_PLATFORM \
430 	GEN6_FEATURES, \
431 	PLATFORM(INTEL_SANDYBRIDGE), \
432 	.is_mobile = 1
433 
434 
435 static const struct intel_device_info snb_m_gt1_info = {
436 	SNB_M_PLATFORM,
437 	.gt = 1,
438 };
439 
440 static const struct intel_device_info snb_m_gt2_info = {
441 	SNB_M_PLATFORM,
442 	.gt = 2,
443 };
444 
445 #define GEN7_FEATURES  \
446 	GEN(7), \
447 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C), \
448 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | BIT(TRANSCODER_C), \
449 	.display.has_hotplug = 1, \
450 	.display.has_fbc = 1, \
451 	.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0), \
452 	.has_coherent_ggtt = true, \
453 	.has_llc = 1, \
454 	.has_rc6 = 1, \
455 	.has_rc6p = 1, \
456 	.has_rps = true, \
457 	.dma_mask_size = 40, \
458 	.ppgtt_type = INTEL_PPGTT_ALIASING, \
459 	.ppgtt_size = 31, \
460 	IVB_PIPE_OFFSETS, \
461 	IVB_CURSOR_OFFSETS, \
462 	IVB_COLORS, \
463 	GEN_DEFAULT_PAGE_SIZES, \
464 	GEN_DEFAULT_REGIONS
465 
466 #define IVB_D_PLATFORM \
467 	GEN7_FEATURES, \
468 	PLATFORM(INTEL_IVYBRIDGE), \
469 	.has_l3_dpf = 1
470 
471 static const struct intel_device_info ivb_d_gt1_info = {
472 	IVB_D_PLATFORM,
473 	.gt = 1,
474 };
475 
476 static const struct intel_device_info ivb_d_gt2_info = {
477 	IVB_D_PLATFORM,
478 	.gt = 2,
479 };
480 
481 #define IVB_M_PLATFORM \
482 	GEN7_FEATURES, \
483 	PLATFORM(INTEL_IVYBRIDGE), \
484 	.is_mobile = 1, \
485 	.has_l3_dpf = 1
486 
487 static const struct intel_device_info ivb_m_gt1_info = {
488 	IVB_M_PLATFORM,
489 	.gt = 1,
490 };
491 
492 static const struct intel_device_info ivb_m_gt2_info = {
493 	IVB_M_PLATFORM,
494 	.gt = 2,
495 };
496 
497 static const struct intel_device_info ivb_q_info = {
498 	GEN7_FEATURES,
499 	PLATFORM(INTEL_IVYBRIDGE),
500 	.gt = 2,
501 	.pipe_mask = 0, /* legal, last one wins */
502 	.cpu_transcoder_mask = 0,
503 	.has_l3_dpf = 1,
504 };
505 
506 static const struct intel_device_info vlv_info = {
507 	PLATFORM(INTEL_VALLEYVIEW),
508 	GEN(7),
509 	.is_lp = 1,
510 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B),
511 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B),
512 	.has_runtime_pm = 1,
513 	.has_rc6 = 1,
514 	.has_rps = true,
515 	.display.has_gmch = 1,
516 	.display.has_hotplug = 1,
517 	.dma_mask_size = 40,
518 	.ppgtt_type = INTEL_PPGTT_ALIASING,
519 	.ppgtt_size = 31,
520 	.has_snoop = true,
521 	.has_coherent_ggtt = false,
522 	.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0),
523 	.display_mmio_offset = VLV_DISPLAY_BASE,
524 	I9XX_PIPE_OFFSETS,
525 	I9XX_CURSOR_OFFSETS,
526 	I965_COLORS,
527 	GEN_DEFAULT_PAGE_SIZES,
528 	GEN_DEFAULT_REGIONS,
529 };
530 
531 #define G75_FEATURES  \
532 	GEN7_FEATURES, \
533 	.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0), \
534 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
535 		BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP), \
536 	.display.has_ddi = 1, \
537 	.has_fpga_dbg = 1, \
538 	.display.has_psr = 1, \
539 	.display.has_psr_hw_tracking = 1, \
540 	.display.has_dp_mst = 1, \
541 	.has_rc6p = 0 /* RC6p removed-by HSW */, \
542 	HSW_PIPE_OFFSETS, \
543 	.has_runtime_pm = 1
544 
545 #define HSW_PLATFORM \
546 	G75_FEATURES, \
547 	PLATFORM(INTEL_HASWELL), \
548 	.has_l3_dpf = 1
549 
550 static const struct intel_device_info hsw_gt1_info = {
551 	HSW_PLATFORM,
552 	.gt = 1,
553 };
554 
555 static const struct intel_device_info hsw_gt2_info = {
556 	HSW_PLATFORM,
557 	.gt = 2,
558 };
559 
560 static const struct intel_device_info hsw_gt3_info = {
561 	HSW_PLATFORM,
562 	.gt = 3,
563 };
564 
565 #define GEN8_FEATURES \
566 	G75_FEATURES, \
567 	GEN(8), \
568 	.has_logical_ring_contexts = 1, \
569 	.dma_mask_size = 39, \
570 	.ppgtt_type = INTEL_PPGTT_FULL, \
571 	.ppgtt_size = 48, \
572 	.has_64bit_reloc = 1, \
573 	.has_reset_engine = 1
574 
575 #define BDW_PLATFORM \
576 	GEN8_FEATURES, \
577 	PLATFORM(INTEL_BROADWELL)
578 
579 static const struct intel_device_info bdw_gt1_info = {
580 	BDW_PLATFORM,
581 	.gt = 1,
582 };
583 
584 static const struct intel_device_info bdw_gt2_info = {
585 	BDW_PLATFORM,
586 	.gt = 2,
587 };
588 
589 static const struct intel_device_info bdw_rsvd_info = {
590 	BDW_PLATFORM,
591 	.gt = 3,
592 	/* According to the device ID those devices are GT3, they were
593 	 * previously treated as not GT3, keep it like that.
594 	 */
595 };
596 
597 static const struct intel_device_info bdw_gt3_info = {
598 	BDW_PLATFORM,
599 	.gt = 3,
600 	.engine_mask =
601 		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1),
602 };
603 
604 static const struct intel_device_info chv_info = {
605 	PLATFORM(INTEL_CHERRYVIEW),
606 	GEN(8),
607 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
608 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | BIT(TRANSCODER_C),
609 	.display.has_hotplug = 1,
610 	.is_lp = 1,
611 	.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0),
612 	.has_64bit_reloc = 1,
613 	.has_runtime_pm = 1,
614 	.has_rc6 = 1,
615 	.has_rps = true,
616 	.has_logical_ring_contexts = 1,
617 	.display.has_gmch = 1,
618 	.dma_mask_size = 39,
619 	.ppgtt_type = INTEL_PPGTT_FULL,
620 	.ppgtt_size = 32,
621 	.has_reset_engine = 1,
622 	.has_snoop = true,
623 	.has_coherent_ggtt = false,
624 	.display_mmio_offset = VLV_DISPLAY_BASE,
625 	CHV_PIPE_OFFSETS,
626 	CHV_CURSOR_OFFSETS,
627 	CHV_COLORS,
628 	GEN_DEFAULT_PAGE_SIZES,
629 	GEN_DEFAULT_REGIONS,
630 };
631 
632 #define GEN9_DEFAULT_PAGE_SIZES \
633 	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
634 		      I915_GTT_PAGE_SIZE_64K
635 
636 #define GEN9_FEATURES \
637 	GEN8_FEATURES, \
638 	GEN(9), \
639 	GEN9_DEFAULT_PAGE_SIZES, \
640 	.has_logical_ring_preemption = 1, \
641 	.display.has_csr = 1, \
642 	.has_gt_uc = 1, \
643 	.display.has_hdcp = 1, \
644 	.display.has_ipc = 1, \
645 	.ddb_size = 896, \
646 	.num_supported_dbuf_slices = 1
647 
648 #define SKL_PLATFORM \
649 	GEN9_FEATURES, \
650 	PLATFORM(INTEL_SKYLAKE)
651 
652 static const struct intel_device_info skl_gt1_info = {
653 	SKL_PLATFORM,
654 	.gt = 1,
655 };
656 
657 static const struct intel_device_info skl_gt2_info = {
658 	SKL_PLATFORM,
659 	.gt = 2,
660 };
661 
662 #define SKL_GT3_PLUS_PLATFORM \
663 	SKL_PLATFORM, \
664 	.engine_mask = \
665 		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1)
666 
667 
668 static const struct intel_device_info skl_gt3_info = {
669 	SKL_GT3_PLUS_PLATFORM,
670 	.gt = 3,
671 };
672 
673 static const struct intel_device_info skl_gt4_info = {
674 	SKL_GT3_PLUS_PLATFORM,
675 	.gt = 4,
676 };
677 
678 #define GEN9_LP_FEATURES \
679 	GEN(9), \
680 	.is_lp = 1, \
681 	.num_supported_dbuf_slices = 1, \
682 	.display.has_hotplug = 1, \
683 	.engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0), \
684 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C), \
685 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
686 		BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP) | \
687 		BIT(TRANSCODER_DSI_A) | BIT(TRANSCODER_DSI_C), \
688 	.has_64bit_reloc = 1, \
689 	.display.has_ddi = 1, \
690 	.has_fpga_dbg = 1, \
691 	.display.has_fbc = 1, \
692 	.display.has_hdcp = 1, \
693 	.display.has_psr = 1, \
694 	.display.has_psr_hw_tracking = 1, \
695 	.has_runtime_pm = 1, \
696 	.display.has_csr = 1, \
697 	.has_rc6 = 1, \
698 	.has_rps = true, \
699 	.display.has_dp_mst = 1, \
700 	.has_logical_ring_contexts = 1, \
701 	.has_logical_ring_preemption = 1, \
702 	.has_gt_uc = 1, \
703 	.dma_mask_size = 39, \
704 	.ppgtt_type = INTEL_PPGTT_FULL, \
705 	.ppgtt_size = 48, \
706 	.has_reset_engine = 1, \
707 	.has_snoop = true, \
708 	.has_coherent_ggtt = false, \
709 	.display.has_ipc = 1, \
710 	HSW_PIPE_OFFSETS, \
711 	IVB_CURSOR_OFFSETS, \
712 	IVB_COLORS, \
713 	GEN9_DEFAULT_PAGE_SIZES, \
714 	GEN_DEFAULT_REGIONS
715 
716 static const struct intel_device_info bxt_info = {
717 	GEN9_LP_FEATURES,
718 	PLATFORM(INTEL_BROXTON),
719 	.ddb_size = 512,
720 };
721 
722 static const struct intel_device_info glk_info = {
723 	GEN9_LP_FEATURES,
724 	PLATFORM(INTEL_GEMINILAKE),
725 	.ddb_size = 1024,
726 	GLK_COLORS,
727 };
728 
729 #define KBL_PLATFORM \
730 	GEN9_FEATURES, \
731 	PLATFORM(INTEL_KABYLAKE)
732 
733 static const struct intel_device_info kbl_gt1_info = {
734 	KBL_PLATFORM,
735 	.gt = 1,
736 };
737 
738 static const struct intel_device_info kbl_gt2_info = {
739 	KBL_PLATFORM,
740 	.gt = 2,
741 };
742 
743 static const struct intel_device_info kbl_gt3_info = {
744 	KBL_PLATFORM,
745 	.gt = 3,
746 	.engine_mask =
747 		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1),
748 };
749 
750 #define CFL_PLATFORM \
751 	GEN9_FEATURES, \
752 	PLATFORM(INTEL_COFFEELAKE)
753 
754 static const struct intel_device_info cfl_gt1_info = {
755 	CFL_PLATFORM,
756 	.gt = 1,
757 };
758 
759 static const struct intel_device_info cfl_gt2_info = {
760 	CFL_PLATFORM,
761 	.gt = 2,
762 };
763 
764 static const struct intel_device_info cfl_gt3_info = {
765 	CFL_PLATFORM,
766 	.gt = 3,
767 	.engine_mask =
768 		BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS1),
769 };
770 
771 #define CML_PLATFORM \
772 	GEN9_FEATURES, \
773 	PLATFORM(INTEL_COMETLAKE)
774 
775 static const struct intel_device_info cml_gt1_info = {
776 	CML_PLATFORM,
777 	.gt = 1,
778 };
779 
780 static const struct intel_device_info cml_gt2_info = {
781 	CML_PLATFORM,
782 	.gt = 2,
783 };
784 
785 #define GEN10_FEATURES \
786 	GEN9_FEATURES, \
787 	GEN(10), \
788 	.ddb_size = 1024, \
789 	.display.has_dsc = 1, \
790 	.has_coherent_ggtt = false, \
791 	GLK_COLORS
792 
793 static const struct intel_device_info cnl_info = {
794 	GEN10_FEATURES,
795 	PLATFORM(INTEL_CANNONLAKE),
796 	.gt = 2,
797 };
798 
799 #define GEN11_DEFAULT_PAGE_SIZES \
800 	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
801 		      I915_GTT_PAGE_SIZE_64K | \
802 		      I915_GTT_PAGE_SIZE_2M
803 
804 #define GEN11_FEATURES \
805 	GEN10_FEATURES, \
806 	GEN11_DEFAULT_PAGE_SIZES, \
807 	.abox_mask = BIT(0), \
808 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
809 		BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP) | \
810 		BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1), \
811 	.pipe_offsets = { \
812 		[TRANSCODER_A] = PIPE_A_OFFSET, \
813 		[TRANSCODER_B] = PIPE_B_OFFSET, \
814 		[TRANSCODER_C] = PIPE_C_OFFSET, \
815 		[TRANSCODER_EDP] = PIPE_EDP_OFFSET, \
816 		[TRANSCODER_DSI_0] = PIPE_DSI0_OFFSET, \
817 		[TRANSCODER_DSI_1] = PIPE_DSI1_OFFSET, \
818 	}, \
819 	.trans_offsets = { \
820 		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
821 		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
822 		[TRANSCODER_C] = TRANSCODER_C_OFFSET, \
823 		[TRANSCODER_EDP] = TRANSCODER_EDP_OFFSET, \
824 		[TRANSCODER_DSI_0] = TRANSCODER_DSI0_OFFSET, \
825 		[TRANSCODER_DSI_1] = TRANSCODER_DSI1_OFFSET, \
826 	}, \
827 	GEN(11), \
828 	.ddb_size = 2048, \
829 	.num_supported_dbuf_slices = 2, \
830 	.has_logical_ring_elsq = 1, \
831 	.color = { .degamma_lut_size = 33, .gamma_lut_size = 262145 }
832 
833 static const struct intel_device_info icl_info = {
834 	GEN11_FEATURES,
835 	PLATFORM(INTEL_ICELAKE),
836 	.engine_mask =
837 		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0) | BIT(VCS2),
838 };
839 
840 static const struct intel_device_info ehl_info = {
841 	GEN11_FEATURES,
842 	PLATFORM(INTEL_ELKHARTLAKE),
843 	.require_force_probe = 1,
844 	.engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(VCS0) | BIT(VECS0),
845 	.ppgtt_size = 36,
846 };
847 
848 #define GEN12_FEATURES \
849 	GEN11_FEATURES, \
850 	GEN(12), \
851 	.abox_mask = GENMASK(2, 1), \
852 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D), \
853 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
854 		BIT(TRANSCODER_C) | BIT(TRANSCODER_D) | \
855 		BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1), \
856 	.pipe_offsets = { \
857 		[TRANSCODER_A] = PIPE_A_OFFSET, \
858 		[TRANSCODER_B] = PIPE_B_OFFSET, \
859 		[TRANSCODER_C] = PIPE_C_OFFSET, \
860 		[TRANSCODER_D] = PIPE_D_OFFSET, \
861 		[TRANSCODER_DSI_0] = PIPE_DSI0_OFFSET, \
862 		[TRANSCODER_DSI_1] = PIPE_DSI1_OFFSET, \
863 	}, \
864 	.trans_offsets = { \
865 		[TRANSCODER_A] = TRANSCODER_A_OFFSET, \
866 		[TRANSCODER_B] = TRANSCODER_B_OFFSET, \
867 		[TRANSCODER_C] = TRANSCODER_C_OFFSET, \
868 		[TRANSCODER_D] = TRANSCODER_D_OFFSET, \
869 		[TRANSCODER_DSI_0] = TRANSCODER_DSI0_OFFSET, \
870 		[TRANSCODER_DSI_1] = TRANSCODER_DSI1_OFFSET, \
871 	}, \
872 	TGL_CURSOR_OFFSETS, \
873 	.has_global_mocs = 1, \
874 	.display.has_dsb = 1
875 
876 static const struct intel_device_info tgl_info = {
877 	GEN12_FEATURES,
878 	PLATFORM(INTEL_TIGERLAKE),
879 	.display.has_modular_fia = 1,
880 	.engine_mask =
881 		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0) | BIT(VCS2),
882 };
883 
884 static const struct intel_device_info rkl_info = {
885 	GEN12_FEATURES,
886 	PLATFORM(INTEL_ROCKETLAKE),
887 	.abox_mask = BIT(0),
888 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C),
889 	.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
890 		BIT(TRANSCODER_C),
891 	.require_force_probe = 1,
892 	.display.has_psr_hw_tracking = 0,
893 	.engine_mask =
894 		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0),
895 };
896 
897 #define GEN12_DGFX_FEATURES \
898 	GEN12_FEATURES, \
899 	.is_dgfx = 1
900 
901 #undef GEN
902 #undef PLATFORM
903 
904 /*
905  * Make sure any device matches here are from most specific to most
906  * general.  For example, since the Quanta match is based on the subsystem
907  * and subvendor IDs, we need it to come before the more general IVB
908  * PCI ID matches, otherwise we'll use the wrong info struct above.
909  */
910 static const struct pci_device_id pciidlist[] = {
911 	INTEL_I830_IDS(&i830_info),
912 	INTEL_I845G_IDS(&i845g_info),
913 	INTEL_I85X_IDS(&i85x_info),
914 	INTEL_I865G_IDS(&i865g_info),
915 	INTEL_I915G_IDS(&i915g_info),
916 	INTEL_I915GM_IDS(&i915gm_info),
917 	INTEL_I945G_IDS(&i945g_info),
918 	INTEL_I945GM_IDS(&i945gm_info),
919 	INTEL_I965G_IDS(&i965g_info),
920 	INTEL_G33_IDS(&g33_info),
921 	INTEL_I965GM_IDS(&i965gm_info),
922 	INTEL_GM45_IDS(&gm45_info),
923 	INTEL_G45_IDS(&g45_info),
924 	INTEL_PINEVIEW_G_IDS(&pnv_g_info),
925 	INTEL_PINEVIEW_M_IDS(&pnv_m_info),
926 	INTEL_IRONLAKE_D_IDS(&ilk_d_info),
927 	INTEL_IRONLAKE_M_IDS(&ilk_m_info),
928 	INTEL_SNB_D_GT1_IDS(&snb_d_gt1_info),
929 	INTEL_SNB_D_GT2_IDS(&snb_d_gt2_info),
930 	INTEL_SNB_M_GT1_IDS(&snb_m_gt1_info),
931 	INTEL_SNB_M_GT2_IDS(&snb_m_gt2_info),
932 	INTEL_IVB_Q_IDS(&ivb_q_info), /* must be first IVB */
933 	INTEL_IVB_M_GT1_IDS(&ivb_m_gt1_info),
934 	INTEL_IVB_M_GT2_IDS(&ivb_m_gt2_info),
935 	INTEL_IVB_D_GT1_IDS(&ivb_d_gt1_info),
936 	INTEL_IVB_D_GT2_IDS(&ivb_d_gt2_info),
937 	INTEL_HSW_GT1_IDS(&hsw_gt1_info),
938 	INTEL_HSW_GT2_IDS(&hsw_gt2_info),
939 	INTEL_HSW_GT3_IDS(&hsw_gt3_info),
940 	INTEL_VLV_IDS(&vlv_info),
941 	INTEL_BDW_GT1_IDS(&bdw_gt1_info),
942 	INTEL_BDW_GT2_IDS(&bdw_gt2_info),
943 	INTEL_BDW_GT3_IDS(&bdw_gt3_info),
944 	INTEL_BDW_RSVD_IDS(&bdw_rsvd_info),
945 	INTEL_CHV_IDS(&chv_info),
946 	INTEL_SKL_GT1_IDS(&skl_gt1_info),
947 	INTEL_SKL_GT2_IDS(&skl_gt2_info),
948 	INTEL_SKL_GT3_IDS(&skl_gt3_info),
949 	INTEL_SKL_GT4_IDS(&skl_gt4_info),
950 	INTEL_BXT_IDS(&bxt_info),
951 	INTEL_GLK_IDS(&glk_info),
952 	INTEL_KBL_GT1_IDS(&kbl_gt1_info),
953 	INTEL_KBL_GT2_IDS(&kbl_gt2_info),
954 	INTEL_KBL_GT3_IDS(&kbl_gt3_info),
955 	INTEL_KBL_GT4_IDS(&kbl_gt3_info),
956 	INTEL_AML_KBL_GT2_IDS(&kbl_gt2_info),
957 	INTEL_CFL_S_GT1_IDS(&cfl_gt1_info),
958 	INTEL_CFL_S_GT2_IDS(&cfl_gt2_info),
959 	INTEL_CFL_H_GT1_IDS(&cfl_gt1_info),
960 	INTEL_CFL_H_GT2_IDS(&cfl_gt2_info),
961 	INTEL_CFL_U_GT2_IDS(&cfl_gt2_info),
962 	INTEL_CFL_U_GT3_IDS(&cfl_gt3_info),
963 	INTEL_WHL_U_GT1_IDS(&cfl_gt1_info),
964 	INTEL_WHL_U_GT2_IDS(&cfl_gt2_info),
965 	INTEL_AML_CFL_GT2_IDS(&cfl_gt2_info),
966 	INTEL_WHL_U_GT3_IDS(&cfl_gt3_info),
967 	INTEL_CML_GT1_IDS(&cml_gt1_info),
968 	INTEL_CML_GT2_IDS(&cml_gt2_info),
969 	INTEL_CML_U_GT1_IDS(&cml_gt1_info),
970 	INTEL_CML_U_GT2_IDS(&cml_gt2_info),
971 	INTEL_CNL_IDS(&cnl_info),
972 	INTEL_ICL_11_IDS(&icl_info),
973 	INTEL_EHL_IDS(&ehl_info),
974 	INTEL_TGL_12_IDS(&tgl_info),
975 	INTEL_RKL_IDS(&rkl_info),
976 	{0, 0, 0}
977 };
978 MODULE_DEVICE_TABLE(pci, pciidlist);
979 
980 static void i915_pci_remove(struct pci_dev *pdev)
981 {
982 	struct drm_i915_private *i915;
983 
984 	i915 = pci_get_drvdata(pdev);
985 	if (!i915) /* driver load aborted, nothing to cleanup */
986 		return;
987 
988 	i915_driver_remove(i915);
989 	pci_set_drvdata(pdev, NULL);
990 
991 	drm_dev_put(&i915->drm);
992 }
993 
994 /* is device_id present in comma separated list of ids */
995 static bool force_probe(u16 device_id, const char *devices)
996 {
997 	char *s, *p, *tok;
998 	bool ret;
999 
1000 	if (!devices || !*devices)
1001 		return false;
1002 
1003 	/* match everything */
1004 	if (strcmp(devices, "*") == 0)
1005 		return true;
1006 
1007 	s = kstrdup(devices, GFP_KERNEL);
1008 	if (!s)
1009 		return false;
1010 
1011 	for (p = s, ret = false; (tok = strsep(&p, ",")) != NULL; ) {
1012 		u16 val;
1013 
1014 		if (kstrtou16(tok, 16, &val) == 0 && val == device_id) {
1015 			ret = true;
1016 			break;
1017 		}
1018 	}
1019 
1020 	kfree(s);
1021 
1022 	return ret;
1023 }
1024 
1025 static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1026 {
1027 	struct intel_device_info *intel_info =
1028 		(struct intel_device_info *) ent->driver_data;
1029 	int err;
1030 
1031 	if (intel_info->require_force_probe &&
1032 	    !force_probe(pdev->device, i915_modparams.force_probe)) {
1033 		dev_info(&pdev->dev,
1034 			 "Your graphics device %04x is not properly supported by the driver in this\n"
1035 			 "kernel version. To force driver probe anyway, use i915.force_probe=%04x\n"
1036 			 "module parameter or CONFIG_DRM_I915_FORCE_PROBE=%04x configuration option,\n"
1037 			 "or (recommended) check for kernel updates.\n",
1038 			 pdev->device, pdev->device, pdev->device);
1039 		return -ENODEV;
1040 	}
1041 
1042 	/* Only bind to function 0 of the device. Early generations
1043 	 * used function 1 as a placeholder for multi-head. This causes
1044 	 * us confusion instead, especially on the systems where both
1045 	 * functions have the same PCI-ID!
1046 	 */
1047 	if (PCI_FUNC(pdev->devfn))
1048 		return -ENODEV;
1049 
1050 	/*
1051 	 * apple-gmux is needed on dual GPU MacBook Pro
1052 	 * to probe the panel if we're the inactive GPU.
1053 	 */
1054 	if (vga_switcheroo_client_probe_defer(pdev))
1055 		return -EPROBE_DEFER;
1056 
1057 	err = i915_driver_probe(pdev, ent);
1058 	if (err)
1059 		return err;
1060 
1061 	if (i915_inject_probe_failure(pci_get_drvdata(pdev))) {
1062 		i915_pci_remove(pdev);
1063 		return -ENODEV;
1064 	}
1065 
1066 	err = i915_live_selftests(pdev);
1067 	if (err) {
1068 		i915_pci_remove(pdev);
1069 		return err > 0 ? -ENOTTY : err;
1070 	}
1071 
1072 	err = i915_perf_selftests(pdev);
1073 	if (err) {
1074 		i915_pci_remove(pdev);
1075 		return err > 0 ? -ENOTTY : err;
1076 	}
1077 
1078 	return 0;
1079 }
1080 
1081 static struct pci_driver i915_pci_driver = {
1082 	.name = DRIVER_NAME,
1083 	.id_table = pciidlist,
1084 	.probe = i915_pci_probe,
1085 	.remove = i915_pci_remove,
1086 	.driver.pm = &i915_pm_ops,
1087 };
1088 
1089 static int __init i915_init(void)
1090 {
1091 	bool use_kms = true;
1092 	int err;
1093 
1094 	err = i915_globals_init();
1095 	if (err)
1096 		return err;
1097 
1098 	err = i915_mock_selftests();
1099 	if (err)
1100 		return err > 0 ? 0 : err;
1101 
1102 	/*
1103 	 * Enable KMS by default, unless explicitly overriden by
1104 	 * either the i915.modeset prarameter or by the
1105 	 * vga_text_mode_force boot option.
1106 	 */
1107 
1108 	if (i915_modparams.modeset == 0)
1109 		use_kms = false;
1110 
1111 	if (vgacon_text_force() && i915_modparams.modeset == -1)
1112 		use_kms = false;
1113 
1114 	if (!use_kms) {
1115 		/* Silently fail loading to not upset userspace. */
1116 		DRM_DEBUG_DRIVER("KMS disabled.\n");
1117 		return 0;
1118 	}
1119 
1120 	err = pci_register_driver(&i915_pci_driver);
1121 	if (err)
1122 		return err;
1123 
1124 	i915_perf_sysctl_register();
1125 	return 0;
1126 }
1127 
1128 static void __exit i915_exit(void)
1129 {
1130 	if (!i915_pci_driver.driver.owner)
1131 		return;
1132 
1133 	i915_perf_sysctl_unregister();
1134 	pci_unregister_driver(&i915_pci_driver);
1135 	i915_globals_exit();
1136 }
1137 
1138 module_init(i915_init);
1139 module_exit(i915_exit);
1140 
1141 MODULE_AUTHOR("Tungsten Graphics, Inc.");
1142 MODULE_AUTHOR("Intel Corporation");
1143 
1144 MODULE_DESCRIPTION(DRIVER_DESC);
1145 MODULE_LICENSE("GPL and additional rights");
1146