aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915/i915_drv.h
blob: 12256218634f403408923d5ccecded68074fa797 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
/* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
 */
/*
 *
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#ifndef _I915_DRV_H_
#define _I915_DRV_H_

#include <uapi/drm/i915_drm.h>
#include <uapi/drm/drm_fourcc.h>

#include <asm/hypervisor.h>

#include <linux/io-mapping.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/backlight.h>
#include <linux/hash.h>
#include <linux/intel-iommu.h>
#include <linux/kref.h>
#include <linux/mm_types.h>
#include <linux/perf_event.h>
#include <linux/pm_qos.h>
#include <linux/dma-resv.h>
#include <linux/shmem_fs.h>
#include <linux/stackdepot.h>
#include <linux/xarray.h>

#include <drm/intel-gtt.h>
#include <drm/drm_gem.h>
#include <drm/drm_auth.h>
#include <drm/drm_cache.h>
#include <drm/drm_util.h>
#include <drm/drm_dsc.h>
#include <drm/drm_atomic.h>
#include <drm/drm_connector.h>
#include <drm/i915_mei_hdcp_interface.h>
#include <drm/ttm/ttm_device.h>

#include "i915_params.h"
#include "i915_reg.h"
#include "i915_utils.h"

#include "display/intel_bios.h"
#include "display/intel_display.h"
#include "display/intel_display_power.h"
#include "display/intel_dmc.h"
#include "display/intel_dpll_mgr.h"
#include "display/intel_dsb.h"
#include "display/intel_frontbuffer.h"
#include "display/intel_global_state.h"
#include "display/intel_gmbus.h"
#include "display/intel_opregion.h"

#include "gem/i915_gem_context_types.h"
#include "gem/i915_gem_shrinker.h"
#include "gem/i915_gem_stolen.h"
#include "gem/i915_gem_lmem.h"

#include "gt/intel_engine.h"
#include "gt/intel_gt_types.h"
#include "gt/intel_region_lmem.h"
#include "gt/intel_workarounds.h"
#include "gt/uc/intel_uc.h"

#include "intel_device_info.h"
#include "intel_memory_region.h"
#include "intel_pch.h"
#include "intel_runtime_pm.h"
#include "intel_step.h"
#include "intel_uncore.h"
#include "intel_wakeref.h"
#include "intel_wopcm.h"

#include "i915_gem.h"
#include "i915_gem_gtt.h"
#include "i915_gpu_error.h"
#include "i915_perf_types.h"
#include "i915_request.h"
#include "i915_scheduler.h"
#include "gt/intel_timeline.h"
#include "i915_vma.h"
#include "i915_irq.h"


/* General customization:
 */

#define DRIVER_NAME		"i915"
#define DRIVER_DESC		"Intel Graphics"
#define DRIVER_DATE		"20201103"
#define DRIVER_TIMESTAMP	1604406085

struct drm_i915_gem_object;

enum hpd_pin {
	HPD_NONE = 0,
	HPD_TV = HPD_NONE,     /* TV is known to be unreliable */
	HPD_CRT,
	HPD_SDVO_B,
	HPD_SDVO_C,
	HPD_PORT_A,
	HPD_PORT_B,
	HPD_PORT_C,
	HPD_PORT_D,
	HPD_PORT_E,
	HPD_PORT_TC1,
	HPD_PORT_TC2,
	HPD_PORT_TC3,
	HPD_PORT_TC4,
	HPD_PORT_TC5,
	HPD_PORT_TC6,

	HPD_NUM_PINS
};

#define for_each_hpd_pin(__pin) \
	for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)

/* Threshold == 5 for long IRQs, 50 for short */
#define HPD_STORM_DEFAULT_THRESHOLD 50

struct i915_hotplug {
	struct delayed_work hotplug_work;

	const u32 *hpd, *pch_hpd;

	struct {
		unsigned long last_jiffies;
		int count;
		enum {
			HPD_ENABLED = 0,
			HPD_DISABLED = 1,
			HPD_MARK_DISABLED = 2
		} state;
	} stats[HPD_NUM_PINS];
	u32 event_bits;
	u32 retry_bits;
	struct delayed_work reenable_work;

	u32 long_port_mask;
	u32 short_port_mask;
	struct work_struct dig_port_work;

	struct work_struct poll_init_work;
	bool poll_enabled;

	unsigned int hpd_storm_threshold;
	/* Whether or not to count short HPD IRQs in HPD storms */
	u8 hpd_short_storm_enabled;

	/*
	 * if we get a HPD irq from DP and a HPD irq from non-DP
	 * the non-DP HPD could block the workqueue on a mode config
	 * mutex getting, that userspace may have taken. However
	 * userspace is waiting on the DP workqueue to run which is
	 * blocked behind the non-DP one.
	 */
	struct workqueue_struct *dp_wq;
};

#define I915_GEM_GPU_DOMAINS \
	(I915_GEM_DOMAIN_RENDER | \
	 I915_GEM_DOMAIN_SAMPLER | \
	 I915_GEM_DOMAIN_COMMAND | \
	 I915_GEM_DOMAIN_INSTRUCTION | \
	 I915_GEM_DOMAIN_VERTEX)

struct drm_i915_private;
struct i915_mm_struct;
struct i915_mmu_object;

struct drm_i915_file_private {
	struct drm_i915_private *dev_priv;

	union {
		struct drm_file *file;
		struct rcu_head rcu;
	};

	/** @proto_context_lock: Guards all struct i915_gem_proto_context
	 * operations
	 *
	 * This not only guards @proto_context_xa, but is always held
	 * whenever we manipulate any struct i915_gem_proto_context,
	 * including finalizing it on first actual use of the GEM context.
	 *
	 * See i915_gem_proto_context.
	 */
	struct mutex proto_context_lock;

	/** @proto_context_xa: xarray of struct i915_gem_proto_context
	 *
	 * Historically, the context uAPI allowed for two methods of
	 * setting context parameters: SET_CONTEXT_PARAM and
	 * CONTEXT_CREATE_EXT_SETPARAM.  The former is allowed to be called
	 * at any time while the later happens as part of
	 * GEM_CONTEXT_CREATE.  Everything settable via one was settable
	 * via the other.  While some params are fairly simple and setting
	 * them on a live context is harmless such as the context priority,
	 * others are far trickier such as the VM or the set of engines.
	 * In order to swap out the VM, for instance, we have to delay
	 * until all current in-flight work is complete, swap in the new
	 * VM, and then continue.  This leads to a plethora of potential
	 * race conditions we'd really rather avoid.
	 *
	 * We have since disallowed setting these more complex parameters
	 * on active contexts.  This works by delaying the creation of the
	 * actual context until after the client is done configuring it
	 * with SET_CONTEXT_PARAM.  From the perspective of the client, it
	 * has the same u32 context ID the whole time.  From the
	 * perspective of i915, however, it's a struct i915_gem_proto_context
	 * right up until the point where we attempt to do something which
	 * the proto-context can't handle.  Then the struct i915_gem_context
	 * gets created.
	 *
	 * This is accomplished via a little xarray dance.  When
	 * GEM_CONTEXT_CREATE is called, we create a struct
	 * i915_gem_proto_context, reserve a slot in @context_xa but leave
	 * it NULL, and place the proto-context in the corresponding slot
	 * in @proto_context_xa.  Then, in i915_gem_context_lookup(), we
	 * first check @context_xa.  If it's there, we return the struct
	 * i915_gem_context and we're done.  If it's not, we look in
	 * @proto_context_xa and, if we find it there, we create the actual
	 * context and kill the proto-context.
	 *
	 * In order for this dance to work properly, everything which ever
	 * touches a struct i915_gem_proto_context is guarded by
	 * @proto_context_lock, including context creation.  Yes, this
	 * means context creation now takes a giant global lock but it
	 * can't really be helped and that should never be on any driver's
	 * fast-path anyway.
	 */
	struct xarray proto_context_xa;

	/** @context_xa: xarray of fully created i915_gem_context
	 *
	 * Write access to this xarray is guarded by @proto_context_lock.
	 * Otherwise, writers may race with finalize_create_context_locked().
	 *
	 * See @proto_context_xa.
	 */
	struct xarray context_xa;
	struct xarray vm_xa;

	unsigned int bsd_engine;

/*
 * Every context ban increments per client ban score. Also
 * hangs in short succession increments ban score. If ban threshold
 * is reached, client is considered banned and submitting more work
 * will fail. This is a stop gap measure to limit the badly behaving
 * clients access to gpu. Note that unbannable contexts never increment
 * the client ban score.
 */
#define I915_CLIENT_SCORE_HANG_FAST	1
#define   I915_CLIENT_FAST_HANG_JIFFIES (60 * HZ)
#define I915_CLIENT_SCORE_CONTEXT_BAN   3
#define I915_CLIENT_SCORE_BANNED	9
	/** ban_score: Accumulated score of all ctx bans and fast hangs. */
	atomic_t ban_score;
	unsigned long hang_timestamp;
};

/* Interface history:
 *
 * 1.1: Original.
 * 1.2: Add Power Management
 * 1.3: Add vblank support
 * 1.4: Fix cmdbuffer path, add heap destroy
 * 1.5: Add vblank pipe configuration
 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
 *      - Support vertical blank on secondary display pipe
 */
#define DRIVER_MAJOR		1
#define DRIVER_MINOR		6
#define DRIVER_PATCHLEVEL	0

struct intel_overlay;
struct intel_overlay_error_state;

struct sdvo_device_mapping {
	u8 initialized;
	u8 dvo_port;
	u8 slave_addr;
	u8 dvo_wiring;
	u8 i2c_pin;
	u8 ddc_pin;
};

struct intel_connector;
struct intel_encoder;
struct intel_atomic_state;
struct intel_cdclk_config;
struct intel_cdclk_state;
struct intel_cdclk_vals;
struct intel_initial_plane_config;
struct intel_crtc;
struct intel_limit;
struct dpll;

/* functions used internal in intel_pm.c */
struct drm_i915_clock_gating_funcs {
	void (*init_clock_gating)(struct drm_i915_private *dev_priv);
};

/* functions used for watermark calcs for display. */
struct drm_i915_wm_disp_funcs {
	/* update_wm is for legacy wm management */
	void (*update_wm)(struct drm_i915_private *dev_priv);
	int (*compute_pipe_wm)(struct intel_atomic_state *state,
			       struct intel_crtc *crtc);
	int (*compute_intermediate_wm)(struct intel_atomic_state *state,
				       struct intel_crtc *crtc);
	void (*initial_watermarks)(struct intel_atomic_state *state,
				   struct intel_crtc *crtc);
	void (*atomic_update_watermarks)(struct intel_atomic_state *state,
					 struct intel_crtc *crtc);
	void (*optimize_watermarks)(struct intel_atomic_state *state,
				    struct intel_crtc *crtc);
	int (*compute_global_watermarks)(struct intel_atomic_state *state);
};

struct intel_color_funcs {
	int (*color_check)(struct intel_crtc_state *crtc_state);
	/*
	 * Program double buffered color management registers during
	 * vblank evasion. The registers should then latch during the
	 * next vblank start, alongside any other double buffered registers
	 * involved with the same commit.
	 */
	void (*color_commit)(const struct intel_crtc_state *crtc_state);
	/*
	 * Load LUTs (and other single buffered color management
	 * registers). Will (hopefully) be called during the vblank
	 * following the latching of any double buffered registers
	 * involved with the same commit.
	 */
	void (*load_luts)(const struct intel_crtc_state *crtc_state);
	void (*read_luts)(struct intel_crtc_state *crtc_state);
};

struct intel_audio_funcs {
	void (*audio_codec_enable)(struct intel_encoder *encoder,
				   const struct intel_crtc_state *crtc_state,
				   const struct drm_connector_state *conn_state);
	void (*audio_codec_disable)(struct intel_encoder *encoder,
				    const struct intel_crtc_state *old_crtc_state,
				    const struct drm_connector_state *old_conn_state);
};

struct intel_cdclk_funcs {
	void (*get_cdclk)(struct drm_i915_private *dev_priv,
			  struct intel_cdclk_config *cdclk_config);
	void (*set_cdclk)(struct drm_i915_private *dev_priv,
			  const struct intel_cdclk_config *cdclk_config,
			  enum pipe pipe);
	int (*bw_calc_min_cdclk)(struct intel_atomic_state *state);
	int (*modeset_calc_cdclk)(struct intel_cdclk_state *state);
	u8 (*calc_voltage_level)(int cdclk);
};

struct intel_hotplug_funcs {
	void (*hpd_irq_setup)(struct drm_i915_private *dev_priv);
};

struct intel_fdi_funcs {
	void (*fdi_link_train)(struct intel_crtc *crtc,
			       const struct intel_crtc_state *crtc_state);
};

struct intel_dpll_funcs {
	int (*crtc_compute_clock)(struct intel_crtc_state *crtc_state);
};

struct drm_i915_display_funcs {
	/* Returns the active state of the crtc, and if the crtc is active,
	 * fills out the pipe-config with the hw state. */
	bool (*get_pipe_config)(struct intel_crtc *,
				struct intel_crtc_state *);
	void (*get_initial_plane_config)(struct intel_crtc *,
					 struct intel_initial_plane_config *);
	void (*crtc_enable)(struct intel_atomic_state *state,
			    struct intel_crtc *crtc);
	void (*crtc_disable)(struct intel_atomic_state *state,
			     struct intel_crtc *crtc);
	void (*commit_modeset_enables)(struct intel_atomic_state *state);
};


#define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */

struct intel_fbc {
	/* This is always the inner lock when overlapping with struct_mutex and
	 * it's the outer lock when overlapping with stolen_lock. */
	struct mutex lock;
	unsigned int possible_framebuffer_bits;
	unsigned int busy_bits;
	struct intel_crtc *crtc;

	struct drm_mm_node compressed_fb;
	struct drm_mm_node compressed_llb;

	u8 limit;

	bool false_color;

	bool active;
	bool activated;
	bool flip_pending;

	bool underrun_detected;
	struct work_struct underrun_work;

	/*
	 * Due to the atomic rules we can't access some structures without the
	 * appropriate locking, so we cache information here in order to avoid
	 * these problems.
	 */
	struct intel_fbc_state_cache {
		struct {
			unsigned int mode_flags;
			u32 hsw_bdw_pixel_rate;
		} crtc;

		struct {
			unsigned int rotation;
			int src_w;
			int src_h;
			bool visible;
			/*
			 * Display surface base address adjustement for
			 * pageflips. Note that on gen4+ this only adjusts up
			 * to a tile, offsets within a tile are handled in
			 * the hw itself (with the TILEOFF register).
			 */
			int adjusted_x;
			int adjusted_y;

			u16 pixel_blend_mode;
		} plane;

		struct {
			const struct drm_format_info *format;
			unsigned int stride;
			u64 modifier;
		} fb;

		unsigned int fence_y_offset;
		u16 interval;
		s8 fence_id;
		bool psr2_active;
	} state_cache;

	/*
	 * This structure contains everything that's relevant to program the
	 * hardware registers. When we want to figure out if we need to disable
	 * and re-enable FBC for a new configuration we just check if there's
	 * something different in the struct. The genx_fbc_activate functions
	 * are supposed to read from it in order to program the registers.
	 */
	struct intel_fbc_reg_params {
		struct {
			enum pipe pipe;
			enum i9xx_plane_id i9xx_plane;
		} crtc;

		struct {
			const struct drm_format_info *format;
			unsigned int stride;
			u64 modifier;
		} fb;

		unsigned int cfb_stride;
		unsigned int cfb_size;
		unsigned int fence_y_offset;
		u16 override_cfb_stride;
		u16 interval;
		s8 fence_id;
		bool plane_visible;
	} params;

	const char *no_fbc_reason;
};

/*
 * HIGH_RR is the highest eDP panel refresh rate read from EDID
 * LOW_RR is the lowest eDP panel refresh rate found from EDID
 * parsing for same resolution.
 */
enum drrs_refresh_rate_type {
	DRRS_HIGH_RR,
	DRRS_LOW_RR,
	DRRS_MAX_RR, /* RR count */
};

enum drrs_support_type {
	DRRS_NOT_SUPPORTED = 0,
	STATIC_DRRS_SUPPORT = 1,
	SEAMLESS_DRRS_SUPPORT = 2
};

struct intel_dp;
struct i915_drrs {
	struct mutex mutex;
	struct delayed_work work;
	struct intel_dp *dp;
	unsigned busy_frontbuffer_bits;
	enum drrs_refresh_rate_type refresh_rate_type;
	enum drrs_support_type type;
};

#define QUIRK_LVDS_SSC_DISABLE (1<<1)
#define QUIRK_INVERT_BRIGHTNESS (1<<2)
#define QUIRK_BACKLIGHT_PRESENT (1<<3)
#define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
#define QUIRK_INCREASE_T12_DELAY (1<<6)
#define QUIRK_INCREASE_DDI_DISABLED_TIME (1<<7)
#define QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK (1<<8)

struct intel_fbdev;
struct intel_fbc_work;

struct intel_gmbus {
	struct i2c_adapter adapter;
#define GMBUS_FORCE_BIT_RETRY (1U << 31)
	u32 force_bit;
	u32 reg0;
	i915_reg_t gpio_reg;
	struct i2c_algo_bit_data bit_algo;
	struct drm_i915_private *dev_priv;
};

struct i915_suspend_saved_registers {
	u32 saveDSPARB;
	u32 saveSWF0[16];
	u32 saveSWF1[16];
	u32 saveSWF3[3];
	u16 saveGCDGMBUS;
};

struct vlv_s0ix_state;

#define MAX_L3_SLICES 2
struct intel_l3_parity {
	u32 *remap_info[MAX_L3_SLICES];
	struct work_struct error_work;
	int which_slice;
};

struct i915_gem_mm {
	/*
	 * Shortcut for the stolen region. This points to either
	 * INTEL_REGION_STOLEN_SMEM for integrated platforms, or
	 * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't
	 * support stolen.
	 */
	struct intel_memory_region *stolen_region;
	/** Memory allocator for GTT stolen memory */
	struct drm_mm stolen;
	/** Protects the usage of the GTT stolen memory allocator. This is
	 * always the inner lock when overlapping with struct_mutex. */
	struct mutex stolen_lock;

	/* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
	spinlock_t obj_lock;

	/**
	 * List of objects which are purgeable.
	 */
	struct list_head purge_list;

	/**
	 * List of objects which have allocated pages and are shrinkable.
	 */
	struct list_head shrink_list;

	/**
	 * List of objects which are pending destruction.
	 */
	struct llist_head free_list;
	struct work_struct free_work;
	/**
	 * Count of objects pending destructions. Used to skip needlessly
	 * waiting on an RCU barrier if no objects are waiting to be freed.
	 */
	atomic_t free_count;

	/**
	 * tmpfs instance used for shmem backed objects
	 */
	struct vfsmount *gemfs;

	struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];

	struct notifier_block oom_notifier;
	struct notifier_block vmap_notifier;
	struct shrinker shrinker;

#ifdef CONFIG_MMU_NOTIFIER
	/**
	 * notifier_lock for mmu notifiers, memory may not be allocated
	 * while holding this lock.
	 */
	rwlock_t notifier_lock;
#endif

	/* shrinker accounting, also useful for userland debugging */
	u64 shrink_memory;
	u32 shrink_count;
};

#define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */

unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
					 u64 context);

static inline unsigned long
i915_fence_timeout(const struct drm_i915_private *i915)
{
	return i915_fence_context_timeout(i915, U64_MAX);
}

/* Amount of SAGV/QGV points, BSpec precisely defines this */
#define I915_NUM_QGV_POINTS 8

#define HAS_HW_SAGV_WM(i915) (DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))

/* Amount of PSF GV points, BSpec precisely defines this */
#define I915_NUM_PSF_GV_POINTS 3

enum psr_lines_to_wait {
	PSR_0_LINES_TO_WAIT = 0,
	PSR_1_LINE_TO_WAIT,
	PSR_4_LINES_TO_WAIT,
	PSR_8_LINES_TO_WAIT
};

struct intel_vbt_data {
	/* bdb version */
	u16 version;

	struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
	struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */

	/* Feature bits */
	unsigned int int_tv_support:1;
	unsigned int lvds_dither:1;
	unsigned int int_crt_support:1;
	unsigned int lvds_use_ssc:1;
	unsigned int int_lvds_support:1;
	unsigned int display_clock_mode:1;
	unsigned int fdi_rx_polarity_inverted:1;
	unsigned int panel_type:4;
	int lvds_ssc_freq;
	unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
	enum drm_panel_orientation orientation;

	enum drrs_support_type drrs_type;

	struct {
		int rate;
		int lanes;
		int preemphasis;
		int vswing;
		bool low_vswing;
		bool initialized;
		int bpp;
		struct edp_power_seq pps;
		bool hobl;
	} edp;

	struct {
		bool enable;
		bool full_link;
		bool require_aux_wakeup;
		int idle_frames;
		enum psr_lines_to_wait lines_to_wait;
		int tp1_wakeup_time_us;
		int tp2_tp3_wakeup_time_us;
		int psr2_tp2_tp3_wakeup_time_us;
	} psr;

	struct {
		u16 pwm_freq_hz;
		u16 brightness_precision_bits;
		bool present;
		bool active_low_pwm;
		u8 min_brightness;	/* min_brightness/255 of max */
		u8 controller;		/* brightness controller number */
		enum intel_backlight_type type;
	} backlight;

	/* MIPI DSI */
	struct {
		u16 panel_id;
		struct mipi_config *config;
		struct mipi_pps_data *pps;
		u16 bl_ports;
		u16 cabc_ports;
		u8 seq_version;
		u32 size;
		u8 *data;
		const u8 *sequence[MIPI_SEQ_MAX];
		u8 *deassert_seq; /* Used by fixup_mipi_sequences() */
		enum drm_panel_orientation orientation;
	} dsi;

	int crt_ddc_pin;

	struct list_head display_devices;

	struct intel_bios_encoder_data *ports[I915_MAX_PORTS]; /* Non-NULL if port present. */
	struct sdvo_device_mapping sdvo_mappings[2];
};

enum intel_ddb_partitioning {
	INTEL_DDB_PART_1_2,
	INTEL_DDB_PART_5_6, /* IVB+ */
};

struct ilk_wm_values {
	u32 wm_pipe[3];
	u32 wm_lp[3];
	u32 wm_lp_spr[3];
	bool enable_fbc_wm;
	enum intel_ddb_partitioning partitioning;
};

struct g4x_pipe_wm {
	u16 plane[I915_MAX_PLANES];
	u16 fbc;
};

struct g4x_sr_wm {
	u16 plane;
	u16 cursor;
	u16 fbc;
};

struct vlv_wm_ddl_values {
	u8 plane[I915_MAX_PLANES];
};

struct vlv_wm_values {
	struct g4x_pipe_wm pipe[3];
	struct g4x_sr_wm sr;
	struct vlv_wm_ddl_values ddl[3];
	u8 level;
	bool cxsr;
};

struct g4x_wm_values {
	struct g4x_pipe_wm pipe[2];
	struct g4x_sr_wm sr;
	struct g4x_sr_wm hpll;
	bool cxsr;
	bool hpll_en;
	bool fbc_en;
};

struct skl_ddb_entry {
	u16 start, end;	/* in number of blocks, 'end' is exclusive */
};

static inline u16 skl_ddb_entry_size(const struct skl_ddb_entry *entry)
{
	return entry->end - entry->start;
}

static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
				       const struct skl_ddb_entry *e2)
{
	if (e1->start == e2->start && e1->end == e2->end)
		return true;

	return false;
}

struct i915_frontbuffer_tracking {
	spinlock_t lock;

	/*
	 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
	 * scheduled flips.
	 */
	unsigned busy_bits;
	unsigned flip_bits;
};

struct i915_virtual_gpu {
	struct mutex lock; /* serialises sending of g2v_notify command pkts */
	bool active;
	u32 caps;
};

struct intel_cdclk_config {
	unsigned int cdclk, vco, ref, bypass;
	u8 voltage_level;
};

struct i915_selftest_stash {
	atomic_t counter;
	struct ida mock_region_instances;
};

struct drm_i915_private {
	struct drm_device drm;

	/* FIXME: Device release actions should all be moved to drmm_ */
	bool do_release;

	/* i915 device parameters */
	struct i915_params params;

	const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
	struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
	struct intel_driver_caps caps;

	/**
	 * Data Stolen Memory - aka "i915 stolen memory" gives us the start and
	 * end of stolen which we can optionally use to create GEM objects
	 * backed by stolen memory. Note that stolen_usable_size tells us
	 * exactly how much of this we are actually allowed to use, given that
	 * some portion of it is in fact reserved for use by hardware functions.
	 */
	struct resource dsm;
	/**
	 * Reseved portion of Data Stolen Memory
	 */
	struct resource dsm_reserved;

	/*
	 * Stolen memory is segmented in hardware with different portions
	 * offlimits to certain functions.
	 *
	 * The drm_mm is initialised to the total accessible range, as found
	 * from the PCI config. On Broadwell+, this is further restricted to
	 * avoid the first page! The upper end of stolen memory is reserved for
	 * hardware functions and similarly removed from the accessible range.
	 */
	resource_size_t stolen_usable_size;	/* Total size minus reserved ranges */

	struct intel_uncore uncore;
	struct intel_uncore_mmio_debug mmio_debug;

	struct i915_virtual_gpu vgpu;

	struct intel_gvt *gvt;

	struct intel_wopcm wopcm;

	struct intel_dmc dmc;

	struct intel_gmbus gmbus[GMBUS_NUM_PINS];

	/** gmbus_mutex protects against concurrent usage of the single hw gmbus
	 * controller on different i2c buses. */
	struct mutex gmbus_mutex;

	/**
	 * Base address of where the gmbus and gpio blocks are located (either
	 * on PCH or on SoC for platforms without PCH).
	 */
	u32 gpio_mmio_base;

	/* MMIO base address for MIPI regs */
	u32 mipi_mmio_base;

	u32 pps_mmio_base;

	wait_queue_head_t gmbus_wait_queue;

	struct pci_dev *bridge_dev;

	struct rb_root uabi_engines;

	struct resource mch_res;

	/* protects the irq masks */
	spinlock_t irq_lock;

	bool display_irqs_enabled;

	/* Sideband mailbox protection */
	struct mutex sb_lock;
	struct pm_qos_request sb_qos;

	/** Cached value of IMR to avoid reads in updating the bitfield */
	union {
		u32 irq_mask;
		u32 de_irq_mask[I915_MAX_PIPES];
	};
	u32 pipestat_irq_mask[I915_MAX_PIPES];

	struct i915_hotplug hotplug;
	struct intel_fbc fbc;
	struct i915_drrs drrs;
	struct intel_opregion opregion;
	struct intel_vbt_data vbt;

	bool preserve_bios_swizzle;

	/* overlay */
	struct intel_overlay *overlay;

	/* backlight registers and fields in struct intel_panel */
	struct mutex backlight_lock;

	/* protects panel power sequencer state */
	struct mutex pps_mutex;

	unsigned int fsb_freq, mem_freq, is_ddr3;
	unsigned int skl_preferred_vco_freq;
	unsigned int max_cdclk_freq;

	unsigned int max_dotclk_freq;
	unsigned int hpll_freq;
	unsigned int fdi_pll_freq;
	unsigned int czclk_freq;

	struct {
		/* The current hardware cdclk configuration */
		struct intel_cdclk_config hw;

		/* cdclk, divider, and ratio table from bspec */
		const struct intel_cdclk_vals *table;

		struct intel_global_obj obj;
	} cdclk;

	struct {
		/* The current hardware dbuf configuration */
		u8 enabled_slices;

		struct intel_global_obj obj;
	} dbuf;

	/**
	 * wq - Driver workqueue for GEM.
	 *
	 * NOTE: Work items scheduled here are not allowed to grab any modeset
	 * locks, for otherwise the flushing done in the pageflip code will
	 * result in deadlocks.
	 */
	struct workqueue_struct *wq;

	/* ordered wq for modesets */
	struct workqueue_struct *modeset_wq;
	/* unbound hipri wq for page flips/plane updates */
	struct workqueue_struct *flip_wq;

	/* pm private clock gating functions */
	const struct drm_i915_clock_gating_funcs *clock_gating_funcs;

	/* pm display functions */
	const struct drm_i915_wm_disp_funcs *wm_disp;

	/* irq display functions */
	const struct intel_hotplug_funcs *hotplug_funcs;

	/* fdi display functions */
	const struct intel_fdi_funcs *fdi_funcs;

	/* display pll funcs */
	const struct intel_dpll_funcs *dpll_funcs;

	/* Display functions */
	const struct drm_i915_display_funcs *display;

	/* Display internal color functions */
	const struct intel_color_funcs *color_funcs;

	/* Display internal audio functions */
	const struct intel_audio_funcs *audio_funcs;

	/* Display CDCLK functions */
	const struct intel_cdclk_funcs *cdclk_funcs;

	/* PCH chipset type */
	enum intel_pch pch_type;
	unsigned short pch_id;

	unsigned long quirks;

	struct drm_atomic_state *modeset_restore_state;
	struct drm_modeset_acquire_ctx reset_ctx;

	struct i915_ggtt ggtt; /* VM representing the global address space */

	struct i915_gem_mm mm;

	/* Kernel Modesetting */

	struct intel_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
	struct intel_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];

	/**
	 * dpll and cdclk state is protected by connection_mutex
	 * dpll.lock serializes intel_{prepare,enable,disable}_shared_dpll.
	 * Must be global rather than per dpll, because on some platforms plls
	 * share registers.
	 */
	struct {
		struct mutex lock;

		int num_shared_dpll;
		struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
		const struct intel_dpll_mgr *mgr;

		struct {
			int nssc;
			int ssc;
		} ref_clks;
	} dpll;

	struct list_head global_obj_list;

	/*
	 * For reading active_pipes holding any crtc lock is
	 * sufficient, for writing must hold all of them.
	 */
	u8 active_pipes;

	struct i915_frontbuffer_tracking fb_tracking;

	struct intel_atomic_helper {
		struct llist_head free_list;
		struct work_struct free_work;
	} atomic_helper;

	bool mchbar_need_disable;

	struct intel_l3_parity l3_parity;

	/*
	 * HTI (aka HDPORT) state read during initial hw readout.  Most
	 * platforms don't have HTI, so this will just stay 0.  Those that do
	 * will use this later to figure out which PLLs and PHYs are unavailable
	 * for driver usage.
	 */
	u32 hti_state;

	/*
	 * edram size in MB.
	 * Cannot be determined by PCIID. You must always read a register.
	 */
	u32 edram_size_mb;

	struct i915_power_domains power_domains;

	struct i915_gpu_error gpu_error;

	struct drm_i915_gem_object *vlv_pctx;

	/* list of fbdev register on this device */
	struct intel_fbdev *fbdev;
	struct work_struct fbdev_suspend_work;

	struct drm_property *broadcast_rgb_property;
	struct drm_property *force_audio_property;

	/* hda/i915 audio component */
	struct i915_audio_component *audio_component;
	bool audio_component_registered;
	/**
	 * av_mutex - mutex for audio/video sync
	 *
	 */
	struct mutex av_mutex;
	int audio_power_refcount;
	u32 audio_freq_cntrl;

	u32 fdi_rx_config;

	/* Shadow for DISPLAY_PHY_CONTROL which can't be safely read */
	u32 chv_phy_control;
	/*
	 * Shadows for CHV DPLL_MD regs to keep the state
	 * checker somewhat working in the presence hardware
	 * crappiness (can't read out DPLL_MD for pipes B & C).
	 */
	u32 chv_dpll_md[I915_MAX_PIPES];
	u32 bxt_phy_grc;

	u32 suspend_count;
	bool power_domains_suspended;
	struct i915_suspend_saved_registers regfile;
	struct vlv_s0ix_state *vlv_s0ix_state;

	enum {
		I915_SAGV_UNKNOWN = 0,
		I915_SAGV_DISABLED,
		I915_SAGV_ENABLED,
		I915_SAGV_NOT_CONTROLLED
	} sagv_status;

	u32 sagv_block_time_us;

	struct {
		/*
		 * Raw watermark latency values:
		 * in 0.1us units for WM0,
		 * in 0.5us units for WM1+.
		 */
		/* primary */
		u16 pri_latency[5];
		/* sprite */
		u16 spr_latency[5];
		/* cursor */
		u16 cur_latency[5];
		/*
		 * Raw watermark memory latency values
		 * for SKL for all 8 levels
		 * in 1us units.
		 */
		u16 skl_latency[8];

		/* current hardware state */
		union {
			struct ilk_wm_values hw;
			struct vlv_wm_values vlv;
			struct g4x_wm_values g4x;
		};

		u8 max_level;

		/*
		 * Should be held around atomic WM register writing; also
		 * protects * intel_crtc->wm.active and
		 * crtc_state->wm.need_postvbl_update.
		 */
		struct mutex wm_mutex;
	} wm;

	struct dram_info {
		bool wm_lv_0_adjust_needed;
		u8 num_channels;
		bool symmetric_memory;
		enum intel_dram_type {
			INTEL_DRAM_UNKNOWN,
			INTEL_DRAM_DDR3,
			INTEL_DRAM_DDR4,
			INTEL_DRAM_LPDDR3,
			INTEL_DRAM_LPDDR4,
			INTEL_DRAM_DDR5,
			INTEL_DRAM_LPDDR5,
		} type;
		u8 num_qgv_points;
		u8 num_psf_gv_points;
	} dram_info;

	struct intel_bw_info {
		/* for each QGV point */
		unsigned int deratedbw[I915_NUM_QGV_POINTS];
		/* for each PSF GV point */
		unsigned int psf_bw[I915_NUM_PSF_GV_POINTS];
		u8 num_qgv_points;
		u8 num_psf_gv_points;
		u8 num_planes;
	} max_bw[6];

	struct intel_global_obj bw_obj;

	struct intel_runtime_pm runtime_pm;

	struct i915_perf perf;

	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
	struct intel_gt gt;

	struct {
		struct i915_gem_contexts {
			spinlock_t lock; /* locks list */
			struct list_head list;
		} contexts;

		/*
		 * We replace the local file with a global mappings as the
		 * backing storage for the mmap is on the device and not
		 * on the struct file, and we do not want to prolong the
		 * lifetime of the local fd. To minimise the number of
		 * anonymous inodes we create, we use a global singleton to
		 * share the global mapping.
		 */
		struct file *mmap_singleton;
	} gem;

	u8 framestart_delay;

	/* Window2 specifies time required to program DSB (Window2) in number of scan lines */
	u8 window2_delay;

	u8 pch_ssc_use;

	/* For i915gm/i945gm vblank irq workaround */
	u8 vblank_enabled;

	bool irq_enabled;

	/* perform PHY state sanity checks? */
	bool chv_phy_assert[2];

	bool ipc_enabled;

	/* Used to save the pipe-to-encoder mapping for audio */
	struct intel_encoder *av_enc_map[I915_MAX_PIPES];

	/* necessary resource sharing with HDMI LPE audio driver. */
	struct {
		struct platform_device *platdev;
		int	irq;
	} lpe_audio;

	struct i915_pmu pmu;

	struct i915_hdcp_comp_master *hdcp_master;
	bool hdcp_comp_added;

	/* Mutex to protect the above hdcp component related values. */
	struct mutex hdcp_comp_mutex;

	/* The TTM device structure. */
	struct ttm_device bdev;

	I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)

	/*
	 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
	 * will be rejected. Instead look for a better place.
	 */
};

static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
{
	return container_of(dev, struct drm_i915_private, drm);
}

static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
{
	return dev_get_drvdata(kdev);
}

static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
{
	return pci_get_drvdata(pdev);
}

/* Simple iterator over all initialised engines */
#define for_each_engine(engine__, dev_priv__, id__) \
	for ((id__) = 0; \
	     (id__) < I915_NUM_ENGINES; \
	     (id__)++) \
		for_each_if ((engine__) = (dev_priv__)->engine[(id__)])

/* Iterator over subset of engines selected by mask */
#define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
	for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
	     (tmp__) ? \
	     ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
	     0;)

#define rb_to_uabi_engine(rb) \
	rb_entry_safe(rb, struct intel_engine_cs, uabi_node)

#define for_each_uabi_engine(engine__, i915__) \
	for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
	     (engine__); \
	     (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))

#define for_each_uabi_class_engine(engine__, class__, i915__) \
	for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
	     (engine__) && (engine__)->uabi_class == (class__); \
	     (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))

#define I915_GTT_OFFSET_NONE ((u32)-1)

/*
 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
 * considered to be the frontbuffer for the given plane interface-wise. This
 * doesn't mean that the hw necessarily already scans it out, but that any
 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
 *
 * We have one bit per pipe and per scanout plane type.
 */
#define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
#define INTEL_FRONTBUFFER(pipe, plane_id) ({ \
	BUILD_BUG_ON(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES > 32); \
	BUILD_BUG_ON(I915_MAX_PLANES > INTEL_FRONTBUFFER_BITS_PER_PIPE); \
	BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); \
})
#define INTEL_FRONTBUFFER_OVERLAY(pipe) \
	BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))
#define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
	GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \
		INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))

#define INTEL_INFO(dev_priv)	(&(dev_priv)->__info)
#define RUNTIME_INFO(dev_priv)	(&(dev_priv)->__runtime)
#define DRIVER_CAPS(dev_priv)	(&(dev_priv)->caps)

#define INTEL_DEVID(dev_priv)	(RUNTIME_INFO(dev_priv)->device_id)

#define IP_VER(ver, rel)		((ver) << 8 | (rel))

#define GRAPHICS_VER(i915)		(INTEL_INFO(i915)->graphics_ver)
#define GRAPHICS_VER_FULL(i915)		IP_VER(INTEL_INFO(i915)->graphics_ver, \
					       INTEL_INFO(i915)->graphics_rel)
#define IS_GRAPHICS_VER(i915, from, until) \
	(GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))

#define MEDIA_VER(i915)			(INTEL_INFO(i915)->media_ver)
#define MEDIA_VER_FULL(i915)		IP_VER(INTEL_INFO(i915)->media_ver, \
					       INTEL_INFO(i915)->media_rel)
#define IS_MEDIA_VER(i915, from, until) \
	(MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))

#define DISPLAY_VER(i915)	(INTEL_INFO(i915)->display.ver)
#define IS_DISPLAY_VER(i915, from, until) \
	(DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))

#define INTEL_REVID(dev_priv)	(to_pci_dev((dev_priv)->drm.dev)->revision)

#define HAS_DSB(dev_priv)	(INTEL_INFO(dev_priv)->display.has_dsb)

#define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.display_step)
#define INTEL_GT_STEP(__i915) (RUNTIME_INFO(__i915)->step.gt_step)

#define IS_DISPLAY_STEP(__i915, since, until) \
	(drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
	 INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) < (until))

#define IS_GT_STEP(__i915, since, until) \
	(drm_WARN_ON(&(__i915)->drm, INTEL_GT_STEP(__i915) == STEP_NONE), \
	 INTEL_GT_STEP(__i915) >= (since) && INTEL_GT_STEP(__i915) < (until))

static __always_inline unsigned int
__platform_mask_index(const struct intel_runtime_info *info,
		      enum intel_platform p)
{
	const unsigned int pbits =
		BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;

	/* Expand the platform_mask array if this fails. */
	BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
		     pbits * ARRAY_SIZE(info->platform_mask));

	return p / pbits;
}

static __always_inline unsigned int
__platform_mask_bit(const struct intel_runtime_info *info,
		    enum intel_platform p)
{
	const unsigned int pbits =
		BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;

	return p % pbits + INTEL_SUBPLATFORM_BITS;
}

static inline u32
intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
{
	const unsigned int pi = __platform_mask_index(info, p);

	return info->platform_mask[pi] & INTEL_SUBPLATFORM_MASK;
}

static __always_inline bool
IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
{
	const struct intel_runtime_info *info = RUNTIME_INFO(i915);
	const unsigned int pi = __platform_mask_index(info, p);
	const unsigned int pb = __platform_mask_bit(info, p);

	BUILD_BUG_ON(!__builtin_constant_p(p));

	return info->platform_mask[pi] & BIT(pb);
}

static __always_inline bool
IS_SUBPLATFORM(const struct drm_i915_private *i915,
	       enum intel_platform p, unsigned int s)
{
	const struct intel_runtime_info *info = RUNTIME_INFO(i915);
	const unsigned int pi = __platform_mask_index(info, p);
	const unsigned int pb = __platform_mask_bit(info, p);
	const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
	const u32 mask = info->platform_mask[pi];

	BUILD_BUG_ON(!__builtin_constant_p(p));
	BUILD_BUG_ON(!__builtin_constant_p(s));
	BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);

	/* Shift and test on the MSB position so sign flag can be used. */
	return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
}

#define IS_MOBILE(dev_priv)	(INTEL_INFO(dev_priv)->is_mobile)
#define IS_DGFX(dev_priv)   (INTEL_INFO(dev_priv)->is_dgfx)

#define IS_I830(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I830)
#define IS_I845G(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I845G)
#define IS_I85X(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I85X)
#define IS_I865G(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I865G)
#define IS_I915G(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I915G)
#define IS_I915GM(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I915GM)
#define IS_I945G(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I945G)
#define IS_I945GM(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I945GM)
#define IS_I965G(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I965G)
#define IS_I965GM(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I965GM)
#define IS_G45(dev_priv)	IS_PLATFORM(dev_priv, INTEL_G45)
#define IS_GM45(dev_priv)	IS_PLATFORM(dev_priv, INTEL_GM45)
#define IS_G4X(dev_priv)	(IS_G45(dev_priv) || IS_GM45(dev_priv))
#define IS_PINEVIEW(dev_priv)	IS_PLATFORM(dev_priv, INTEL_PINEVIEW)
#define IS_G33(dev_priv)	IS_PLATFORM(dev_priv, INTEL_G33)
#define IS_IRONLAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_IRONLAKE)
#define IS_IRONLAKE_M(dev_priv) \
	(IS_PLATFORM(dev_priv, INTEL_IRONLAKE) && IS_MOBILE(dev_priv))
#define IS_SANDYBRIDGE(dev_priv) IS_PLATFORM(dev_priv, INTEL_SANDYBRIDGE)
#define IS_IVYBRIDGE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
#define IS_IVB_GT1(dev_priv)	(IS_IVYBRIDGE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 1)
#define IS_VALLEYVIEW(dev_priv)	IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
#define IS_CHERRYVIEW(dev_priv)	IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
#define IS_HASWELL(dev_priv)	IS_PLATFORM(dev_priv, INTEL_HASWELL)
#define IS_BROADWELL(dev_priv)	IS_PLATFORM(dev_priv, INTEL_BROADWELL)
#define IS_SKYLAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_SKYLAKE)
#define IS_BROXTON(dev_priv)	IS_PLATFORM(dev_priv, INTEL_BROXTON)
#define IS_KABYLAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_KABYLAKE)
#define IS_GEMINILAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_GEMINILAKE)
#define IS_COFFEELAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
#define IS_COMETLAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
#define IS_CANNONLAKE(dev_priv)	0
#define IS_ICELAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_ICELAKE)
#define IS_JSL_EHL(dev_priv)	(IS_PLATFORM(dev_priv, INTEL_JASPERLAKE) || \
				IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
#define IS_TIGERLAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
#define IS_ROCKETLAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
#define IS_DG1(dev_priv)        IS_PLATFORM(dev_priv, INTEL_DG1)
#define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
#define IS_ALDERLAKE_P(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_P)
#define IS_XEHPSDV(dev_priv) IS_PLATFORM(dev_priv, INTEL_XEHPSDV)
#define IS_DG2(dev_priv)	IS_PLATFORM(dev_priv, INTEL_DG2)
#define IS_DG2_G10(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10)
#define IS_DG2_G11(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11)
#define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
				    (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
#define IS_BDW_ULT(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
#define IS_BDW_ULX(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
#define IS_BDW_GT3(dev_priv)	(IS_BROADWELL(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 3)
#define IS_HSW_ULT(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
#define IS_HSW_GT3(dev_priv)	(IS_HASWELL(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 3)
#define IS_HSW_GT1(dev_priv)	(IS_HASWELL(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 1)
/* ULX machines are also considered ULT. */
#define IS_HSW_ULX(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
#define IS_SKL_ULT(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
#define IS_SKL_ULX(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
#define IS_KBL_ULT(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
#define IS_KBL_ULX(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
#define IS_SKL_GT2(dev_priv)	(IS_SKYLAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 2)
#define IS_SKL_GT3(dev_priv)	(IS_SKYLAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 3)
#define IS_SKL_GT4(dev_priv)	(IS_SKYLAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 4)
#define IS_KBL_GT2(dev_priv)	(IS_KABYLAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 2)
#define IS_KBL_GT3(dev_priv)	(IS_KABYLAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 3)
#define IS_CFL_ULT(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
#define IS_CFL_ULX(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
#define IS_CFL_GT2(dev_priv)	(IS_COFFEELAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 2)
#define IS_CFL_GT3(dev_priv)	(IS_COFFEELAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 3)

#define IS_CML_ULT(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
#define IS_CML_ULX(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
#define IS_CML_GT2(dev_priv)	(IS_COMETLAKE(dev_priv) && \
				 INTEL_INFO(dev_priv)->gt == 2)

#define IS_ICL_WITH_PORT_F(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)

#define IS_TGL_U(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT)

#define IS_TGL_Y(dev_priv) \
	IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX)

#define IS_SKL_GT_STEP(p, since, until) (IS_SKYLAKE(p) && IS_GT_STEP(p, since, until))

#define IS_KBL_GT_STEP(dev_priv, since, until) \
	(IS_KABYLAKE(dev_priv) && IS_GT_STEP(dev_priv, since, until))
#define IS_KBL_DISPLAY_STEP(dev_priv, since, until) \
	(IS_KABYLAKE(dev_priv) && IS_DISPLAY_STEP(dev_priv, since, until))

#define IS_JSL_EHL_GT_STEP(p, since, until) \
	(IS_JSL_EHL(p) && IS_GT_STEP(p, since, until))
#define IS_JSL_EHL_DISPLAY_STEP(p, since, until) \
	(IS_JSL_EHL(p) && IS_DISPLAY_STEP(p, since, until))

#define IS_TGL_DISPLAY_STEP(__i915, since, until) \
	(IS_TIGERLAKE(__i915) && \
	 IS_DISPLAY_STEP(__i915, since, until))

#define IS_TGL_UY_GT_STEP(__i915, since, until) \
	((IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
	 IS_GT_STEP(__i915, since, until))

#define IS_TGL_GT_STEP(__i915, since, until) \
	(IS_TIGERLAKE(__i915) && !(IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
	 IS_GT_STEP(__i915, since, until))

#define IS_RKL_DISPLAY_STEP(p, since, until) \
	(IS_ROCKETLAKE(p) && IS_DISPLAY_STEP(p, since, until))

#define IS_DG1_GT_STEP(p, since, until) \
	(IS_DG1(p) && IS_GT_STEP(p, since, until))
#define IS_DG1_DISPLAY_STEP(p, since, until) \
	(IS_DG1(p) && IS_DISPLAY_STEP(p, since, until))

#define IS_ADLS_DISPLAY_STEP(__i915, since, until) \
	(IS_ALDERLAKE_S(__i915) && \
	 IS_DISPLAY_STEP(__i915, since, until))

#define IS_ADLS_GT_STEP(__i915, since, until) \
	(IS_ALDERLAKE_S(__i915) && \
	 IS_GT_STEP(__i915, since, until))

#define IS_ADLP_DISPLAY_STEP(__i915, since, until) \
	(IS_ALDERLAKE_P(__i915) && \
	 IS_DISPLAY_STEP(__i915, since, until))

#define IS_ADLP_GT_STEP(__i915, since, until) \
	(IS_ALDERLAKE_P(__i915) && \
	 IS_GT_STEP(__i915, since, until))

#define IS_XEHPSDV_GT_STEP(__i915, since, until) \
	(IS_XEHPSDV(__i915) && IS_GT_STEP(__i915, since, until))

/*
 * DG2 hardware steppings are a bit unusual.  The hardware design was forked
 * to create two variants (G10 and G11) which have distinct workaround sets.
 * The G11 fork of the DG2 design resets the GT stepping back to "A0" for its
 * first iteration, even though it's more similar to a G10 B0 stepping in terms
 * of functionality and workarounds.  However the display stepping does not
 * reset in the same manner --- a specific stepping like "B0" has a consistent
 * meaning regardless of whether it belongs to a G10 or G11 DG2.
 *
 * TLDR:  All GT workarounds and stepping-specific logic must be applied in
 * relation to a specific subplatform (G10 or G11), whereas display workarounds
 * and stepping-specific logic will be applied with a general DG2-wide stepping
 * number.
 */
#define IS_DG2_GT_STEP(__i915, variant, since, until) \
	(IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
	 IS_GT_STEP(__i915, since, until))

#define IS_DG2_DISP_STEP(__i915, since, until) \
	(IS_DG2(__i915) && \
	 IS_DISPLAY_STEP(__i915, since, until))

#define IS_LP(dev_priv)		(INTEL_INFO(dev_priv)->is_lp)
#define IS_GEN9_LP(dev_priv)	(GRAPHICS_VER(dev_priv) == 9 && IS_LP(dev_priv))
#define IS_GEN9_BC(dev_priv)	(GRAPHICS_VER(dev_priv) == 9 && !IS_LP(dev_priv))

#define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
#define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)

#define ENGINE_INSTANCES_MASK(gt, first, count) ({		\
	unsigned int first__ = (first);					\
	unsigned int count__ = (count);					\
	((gt)->info.engine_mask &						\
	 GENMASK(first__ + count__ - 1, first__)) >> first__;		\
})
#define VDBOX_MASK(gt) \
	ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
#define VEBOX_MASK(gt) \
	ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)

/*
 * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
 * All later gens can run the final buffer from the ppgtt
 */
#define CMDPARSER_USES_GGTT(dev_priv) (GRAPHICS_VER(dev_priv) == 7)

#define HAS_LLC(dev_priv)	(INTEL_INFO(dev_priv)->has_llc)
#define HAS_SNOOP(dev_priv)	(INTEL_INFO(dev_priv)->has_snoop)
#define HAS_EDRAM(dev_priv)	((dev_priv)->edram_size_mb)
#define HAS_SECURE_BATCHES(dev_priv) (GRAPHICS_VER(dev_priv) < 6)
#define HAS_WT(dev_priv)	HAS_EDRAM(dev_priv)

#define HWS_NEEDS_PHYSICAL(dev_priv)	(INTEL_INFO(dev_priv)->hws_needs_physical)

#define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
		(INTEL_INFO(dev_priv)->has_logical_ring_contexts)
#define HAS_LOGICAL_RING_ELSQ(dev_priv) \
		(INTEL_INFO(dev_priv)->has_logical_ring_elsq)

#define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)

#define INTEL_PPGTT(dev_priv) (INTEL_INFO(dev_priv)->ppgtt_type)
#define HAS_PPGTT(dev_priv) \
	(INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
#define HAS_FULL_PPGTT(dev_priv) \
	(INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)

#define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
	GEM_BUG_ON((sizes) == 0); \
	((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
})

#define HAS_OVERLAY(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_overlay)
#define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
		(INTEL_INFO(dev_priv)->display.overlay_needs_physical)

/* Early gen2 have a totally busted CS tlb and require pinned batches. */
#define HAS_BROKEN_CS_TLB(dev_priv)	(IS_I830(dev_priv) || IS_I845G(dev_priv))

#define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv)	\
	(IS_BROADWELL(dev_priv) || GRAPHICS_VER(dev_priv) == 9)

/* WaRsDisableCoarsePowerGating:skl,cnl */
#define NEEDS_WaRsDisableCoarsePowerGating(dev_priv)			\
	(IS_SKL_GT3(dev_priv) || IS_SKL_GT4(dev_priv))

#define HAS_GMBUS_IRQ(dev_priv) (GRAPHICS_VER(dev_priv) >= 4)
#define HAS_GMBUS_BURST_READ(dev_priv) (GRAPHICS_VER(dev_priv) >= 11 || \
					IS_GEMINILAKE(dev_priv) || \
					IS_KABYLAKE(dev_priv))

/* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
 * rows, which changed the alignment requirements and fence programming.
 */
#define HAS_128_BYTE_Y_TILING(dev_priv) (GRAPHICS_VER(dev_priv) != 2 && \
					 !(IS_I915G(dev_priv) || IS_I915GM(dev_priv)))
#define SUPPORTS_TV(dev_priv)		(INTEL_INFO(dev_priv)->display.supports_tv)
#define I915_HAS_HOTPLUG(dev_priv)	(INTEL_INFO(dev_priv)->display.has_hotplug)

#define HAS_FW_BLC(dev_priv)	(GRAPHICS_VER(dev_priv) > 2)
#define HAS_FBC(dev_priv)	(INTEL_INFO(dev_priv)->display.has_fbc)
#define HAS_CUR_FBC(dev_priv)	(!HAS_GMCH(dev_priv) && GRAPHICS_VER(dev_priv) >= 7)

#define HAS_IPS(dev_priv)	(IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))

#define HAS_DP_MST(dev_priv)	(INTEL_INFO(dev_priv)->display.has_dp_mst)
#define HAS_DP20(dev_priv)	(IS_DG2(dev_priv))

#define HAS_CDCLK_CRAWL(dev_priv)	 (INTEL_INFO(dev_priv)->display.has_cdclk_crawl)
#define HAS_DDI(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_ddi)
#define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
#define HAS_PSR(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_psr)
#define HAS_PSR_HW_TRACKING(dev_priv) \
	(INTEL_INFO(dev_priv)->display.has_psr_hw_tracking)
#define HAS_PSR2_SEL_FETCH(dev_priv)	 (GRAPHICS_VER(dev_priv) >= 12)
#define HAS_TRANSCODER(dev_priv, trans)	 ((INTEL_INFO(dev_priv)->cpu_transcoder_mask & BIT(trans)) != 0)

#define HAS_RC6(dev_priv)		 (INTEL_INFO(dev_priv)->has_rc6)
#define HAS_RC6p(dev_priv)		 (INTEL_INFO(dev_priv)->has_rc6p)
#define HAS_RC6pp(dev_priv)		 (false) /* HW was never validated */

#define HAS_RPS(dev_priv)	(INTEL_INFO(dev_priv)->has_rps)

#define HAS_DMC(dev_priv)	(INTEL_INFO(dev_priv)->display.has_dmc)

#define HAS_MSO(i915)		(GRAPHICS_VER(i915) >= 12)

#define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
#define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)

#define HAS_MSLICES(dev_priv) \
	(INTEL_INFO(dev_priv)->has_mslices)

#define HAS_IPC(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_ipc)

#define HAS_REGION(i915, i) (INTEL_INFO(i915)->memory_regions & (i))
#define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)

#define HAS_GT_UC(dev_priv)	(INTEL_INFO(dev_priv)->has_gt_uc)

#define HAS_POOLED_EU(dev_priv)	(INTEL_INFO(dev_priv)->has_pooled_eu)

#define HAS_GLOBAL_MOCS_REGISTERS(dev_priv)	(INTEL_INFO(dev_priv)->has_global_mocs)

#define HAS_PXP(dev_priv)  ((IS_ENABLED(CONFIG_DRM_I915_PXP) && \
			    INTEL_INFO(dev_priv)->has_pxp) && \
			    VDBOX_MASK(&dev_priv->gt))

#define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)

#define HAS_LSPCON(dev_priv) (IS_GRAPHICS_VER(dev_priv, 9, 10))

/* DPF == dynamic parity feature */
#define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
#define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
				 2 : HAS_L3_DPF(dev_priv))

#define GT_FREQUENCY_MULTIPLIER 50
#define GEN9_FREQ_SCALER 3

#define INTEL_NUM_PIPES(dev_priv) (hweight8(INTEL_INFO(dev_priv)->pipe_mask))

#define HAS_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->pipe_mask != 0)

#define HAS_VRR(i915)	(GRAPHICS_VER(i915) >= 12)

#define HAS_ASYNC_FLIPS(i915)		(DISPLAY_VER(i915) >= 5)

/* Only valid when HAS_DISPLAY() is true */
#define INTEL_DISPLAY_ENABLED(dev_priv) \
	(drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)

static inline bool run_as_guest(void)
{
	return !hypervisor_is_type(X86_HYPER_NATIVE);
}

#define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
					      IS_ALDERLAKE_S(dev_priv))

static inline bool intel_vtd_active(void)
{
#ifdef CONFIG_INTEL_IOMMU
	if (intel_iommu_gfx_mapped)
		return true;
#endif

	/* Running as a guest, we assume the host is enforcing VT'd */
	return run_as_guest();
}

static inline bool intel_scanout_needs_vtd_wa(struct drm_i915_private *dev_priv)
{
	return GRAPHICS_VER(dev_priv) >= 6 && intel_vtd_active();
}

static inline bool
intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915)
{
	return IS_BROXTON(i915) && intel_vtd_active();
}

static inline bool
intel_vm_no_concurrent_access_wa(struct drm_i915_private *i915)
{
	return IS_CHERRYVIEW(i915) || intel_ggtt_update_needs_vtd_wa(i915);
}

/* i915_drv.c */
extern const struct dev_pm_ops i915_pm_ops;

int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
void i915_driver_remove(struct drm_i915_private *i915);
void i915_driver_shutdown(struct drm_i915_private *i915);

int i915_resume_switcheroo(struct drm_i915_private *i915);
int i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state);

int i915_getparam_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);

/* i915_gem.c */
int i915_gem_init_userptr(struct drm_i915_private *dev_priv);
void i915_gem_cleanup_userptr(struct drm_i915_private *dev_priv);
void i915_gem_init_early(struct drm_i915_private *dev_priv);
void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);

static inline void i915_gem_drain_freed_objects(struct drm_i915_private *i915)
{
	/*
	 * A single pass should suffice to release all the freed objects (along
	 * most call paths) , but be a little more paranoid in that freeing
	 * the objects does take a little amount of time, during which the rcu
	 * callbacks could have added new objects into the freed list, and
	 * armed the work again.
	 */
	while (atomic_read(&i915->mm.free_count)) {
		flush_work(&i915->mm.free_work);
		rcu_barrier();
	}
}

static inline void i915_gem_drain_workqueue(struct drm_i915_private *i915)
{
	/*
	 * Similar to objects above (see i915_gem_drain_freed-objects), in
	 * general we have workers that are armed by RCU and then rearm
	 * themselves in their callbacks. To be paranoid, we need to
	 * drain the workqueue a second time after waiting for the RCU
	 * grace period so that we catch work queued via RCU from the first
	 * pass. As neither drain_workqueue() nor flush_workqueue() report
	 * a result, we make an assumption that we only don't require more
	 * than 3 passes to catch all _recursive_ RCU delayed work.
	 *
	 */
	int pass = 3;
	do {
		flush_workqueue(i915->wq);
		rcu_barrier();
		i915_gem_drain_freed_objects(i915);
	} while (--pass);
	drain_workqueue(i915->wq);
}

struct i915_vma * __must_check
i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
			    struct i915_gem_ww_ctx *ww,
			    const struct i915_ggtt_view *view,
			    u64 size, u64 alignment, u64 flags);

static inline struct i915_vma * __must_check
i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
			 const struct i915_ggtt_view *view,
			 u64 size, u64 alignment, u64 flags)
{
	return i915_gem_object_ggtt_pin_ww(obj, NULL, view, size, alignment, flags);
}

int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
			   unsigned long flags);
#define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
#define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
#define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
#define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)

void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);

int i915_gem_dumb_create(struct drm_file *file_priv,
			 struct drm_device *dev,
			 struct drm_mode_create_dumb *args);

int __must_check i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno);

static inline u32 i915_reset_count(struct i915_gpu_error *error)
{
	return atomic_read(&error->reset_count);
}

static inline u32 i915_reset_engine_count(struct i915_gpu_error *error,
					  const struct intel_engine_cs *engine)
{
	return atomic_read(&error->reset_engine_count[engine->uabi_class]);
}

int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
void i915_gem_driver_register(struct drm_i915_private *i915);
void i915_gem_driver_unregister(struct drm_i915_private *i915);
void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
void i915_gem_driver_release(struct drm_i915_private *dev_priv);
void i915_gem_suspend(struct drm_i915_private *dev_priv);
void i915_gem_suspend_late(struct drm_i915_private *dev_priv);
void i915_gem_resume(struct drm_i915_private *dev_priv);

int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);

int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
				    enum i915_cache_level cache_level);

struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
				struct dma_buf *dma_buf);

struct dma_buf *i915_gem_prime_export(struct drm_gem_object *gem_obj, int flags);

static inline struct i915_address_space *
i915_gem_vm_lookup(struct drm_i915_file_private *file_priv, u32 id)
{
	struct i915_address_space *vm;

	xa_lock(&file_priv->vm_xa);
	vm = xa_load(&file_priv->vm_xa, id);
	if (vm)
		kref_get(&vm->ref);
	xa_unlock(&file_priv->vm_xa);

	return vm;
}

/* i915_gem_evict.c */
int __must_check i915_gem_evict_something(struct i915_address_space *vm,
					  u64 min_size, u64 alignment,
					  unsigned long color,
					  u64 start, u64 end,
					  unsigned flags);
int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
					 struct drm_mm_node *node,
					 unsigned int flags);
int i915_gem_evict_vm(struct i915_address_space *vm);

/* i915_gem_internal.c */
struct drm_i915_gem_object *
i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
				phys_addr_t size);

/* i915_gem_tiling.c */
static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
{
	struct drm_i915_private *i915 = to_i915(obj->base.dev);

	return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
		i915_gem_object_is_tiled(obj);
}

u32 i915_gem_fence_size(struct drm_i915_private *dev_priv, u32 size,
			unsigned int tiling, unsigned int stride);
u32 i915_gem_fence_alignment(struct drm_i915_private *dev_priv, u32 size,
			     unsigned int tiling, unsigned int stride);

const char *i915_cache_level_str(struct drm_i915_private *i915, int type);

/* i915_cmd_parser.c */
int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
int intel_engine_init_cmd_parser(struct intel_engine_cs *engine);
void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine);
int intel_engine_cmd_parser(struct intel_engine_cs *engine,
			    struct i915_vma *batch,
			    unsigned long batch_offset,
			    unsigned long batch_length,
			    struct i915_vma *shadow,
			    bool trampoline);
#define I915_CMD_PARSER_TRAMPOLINE_SIZE 8

/* intel_device_info.c */
static inline struct intel_device_info *
mkwrite_device_info(struct drm_i915_private *dev_priv)
{
	return (struct intel_device_info *)INTEL_INFO(dev_priv);
}

int i915_reg_read_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file);

/* i915_mm.c */
int remap_io_mapping(struct vm_area_struct *vma,
		     unsigned long addr, unsigned long pfn, unsigned long size,
		     struct io_mapping *iomap);
int remap_io_sg(struct vm_area_struct *vma,
		unsigned long addr, unsigned long size,
		struct scatterlist *sgl, resource_size_t iobase);

static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
{
	if (GRAPHICS_VER(i915) >= 11)
		return ICL_HWS_CSB_WRITE_INDEX;
	else
		return I915_HWS_CSB_WRITE_INDEX;
}

static inline enum i915_map_type
i915_coherent_map_type(struct drm_i915_private *i915,
		       struct drm_i915_gem_object *obj, bool always_coherent)
{
	if (i915_gem_object_is_lmem(obj))
		return I915_MAP_WC;
	if (HAS_LLC(i915) || always_coherent)
		return I915_MAP_WB;
	else
		return I915_MAP_WC;
}

#endif