aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
blob: 5a8e3e1fc48c3c2c2df6934fd7b2fcb05f8a35b0 (plain)
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
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
 * Copyright (C) 2013 Red Hat
 * Author: Rob Clark <robdclark@gmail.com>
 */

#define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__

#include <linux/debugfs.h>
#include <linux/dma-buf.h>
#include <linux/of_irq.h>
#include <linux/pm_opp.h>

#include <drm/drm_crtc.h>
#include <drm/drm_file.h>

#include "msm_drv.h"
#include "msm_mmu.h"
#include "msm_gem.h"

#include "dpu_kms.h"
#include "dpu_core_irq.h"
#include "dpu_formats.h"
#include "dpu_hw_vbif.h"
#include "dpu_vbif.h"
#include "dpu_encoder.h"
#include "dpu_plane.h"
#include "dpu_crtc.h"

#define CREATE_TRACE_POINTS
#include "dpu_trace.h"

/*
 * To enable overall DRM driver logging
 * # echo 0x2 > /sys/module/drm/parameters/debug
 *
 * To enable DRM driver h/w logging
 * # echo <mask> > /sys/kernel/debug/dri/0/debug/hw_log_mask
 *
 * See dpu_hw_mdss.h for h/w logging mask definitions (search for DPU_DBG_MASK_)
 */
#define DPU_DEBUGFS_DIR "msm_dpu"
#define DPU_DEBUGFS_HWMASKNAME "hw_log_mask"

static int dpu_kms_hw_init(struct msm_kms *kms);
static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms);

#ifdef CONFIG_DEBUG_FS
static int _dpu_danger_signal_status(struct seq_file *s,
		bool danger_status)
{
	struct dpu_kms *kms = (struct dpu_kms *)s->private;
	struct dpu_danger_safe_status status;
	int i;

	if (!kms->hw_mdp) {
		DPU_ERROR("invalid arg(s)\n");
		return 0;
	}

	memset(&status, 0, sizeof(struct dpu_danger_safe_status));

	pm_runtime_get_sync(&kms->pdev->dev);
	if (danger_status) {
		seq_puts(s, "\nDanger signal status:\n");
		if (kms->hw_mdp->ops.get_danger_status)
			kms->hw_mdp->ops.get_danger_status(kms->hw_mdp,
					&status);
	} else {
		seq_puts(s, "\nSafe signal status:\n");
		if (kms->hw_mdp->ops.get_danger_status)
			kms->hw_mdp->ops.get_danger_status(kms->hw_mdp,
					&status);
	}
	pm_runtime_put_sync(&kms->pdev->dev);

	seq_printf(s, "MDP     :  0x%x\n", status.mdp);

	for (i = SSPP_VIG0; i < SSPP_MAX; i++)
		seq_printf(s, "SSPP%d   :  0x%x  \t", i - SSPP_VIG0,
				status.sspp[i]);
	seq_puts(s, "\n");

	return 0;
}

static int dpu_debugfs_danger_stats_show(struct seq_file *s, void *v)
{
	return _dpu_danger_signal_status(s, true);
}
DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_danger_stats);

static int dpu_debugfs_safe_stats_show(struct seq_file *s, void *v)
{
	return _dpu_danger_signal_status(s, false);
}
DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_safe_stats);

static void dpu_debugfs_danger_init(struct dpu_kms *dpu_kms,
		struct dentry *parent)
{
	struct dentry *entry = debugfs_create_dir("danger", parent);

	debugfs_create_file("danger_status", 0600, entry,
			dpu_kms, &dpu_debugfs_danger_stats_fops);
	debugfs_create_file("safe_status", 0600, entry,
			dpu_kms, &dpu_debugfs_safe_stats_fops);
}

static int _dpu_debugfs_show_regset32(struct seq_file *s, void *data)
{
	struct dpu_debugfs_regset32 *regset = s->private;
	struct dpu_kms *dpu_kms = regset->dpu_kms;
	void __iomem *base;
	uint32_t i, addr;

	if (!dpu_kms->mmio)
		return 0;

	base = dpu_kms->mmio + regset->offset;

	/* insert padding spaces, if needed */
	if (regset->offset & 0xF) {
		seq_printf(s, "[%x]", regset->offset & ~0xF);
		for (i = 0; i < (regset->offset & 0xF); i += 4)
			seq_puts(s, "         ");
	}

	pm_runtime_get_sync(&dpu_kms->pdev->dev);

	/* main register output */
	for (i = 0; i < regset->blk_len; i += 4) {
		addr = regset->offset + i;
		if ((addr & 0xF) == 0x0)
			seq_printf(s, i ? "\n[%x]" : "[%x]", addr);
		seq_printf(s, " %08x", readl_relaxed(base + i));
	}
	seq_puts(s, "\n");
	pm_runtime_put_sync(&dpu_kms->pdev->dev);

	return 0;
}

static int dpu_debugfs_open_regset32(struct inode *inode,
		struct file *file)
{
	return single_open(file, _dpu_debugfs_show_regset32, inode->i_private);
}

static const struct file_operations dpu_fops_regset32 = {
	.open =		dpu_debugfs_open_regset32,
	.read =		seq_read,
	.llseek =	seq_lseek,
	.release =	single_release,
};

void dpu_debugfs_setup_regset32(struct dpu_debugfs_regset32 *regset,
		uint32_t offset, uint32_t length, struct dpu_kms *dpu_kms)
{
	if (regset) {
		regset->offset = offset;
		regset->blk_len = length;
		regset->dpu_kms = dpu_kms;
	}
}

void dpu_debugfs_create_regset32(const char *name, umode_t mode,
		void *parent, struct dpu_debugfs_regset32 *regset)
{
	if (!name || !regset || !regset->dpu_kms || !regset->blk_len)
		return;

	/* make sure offset is a multiple of 4 */
	regset->offset = round_down(regset->offset, 4);

	debugfs_create_file(name, mode, parent, regset, &dpu_fops_regset32);
}

static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
	void *p = dpu_hw_util_get_log_mask_ptr();
	struct dentry *entry;
	struct drm_device *dev;
	struct msm_drm_private *priv;

	if (!p)
		return -EINVAL;

	dev = dpu_kms->dev;
	priv = dev->dev_private;

	entry = debugfs_create_dir("debug", minor->debugfs_root);

	debugfs_create_x32(DPU_DEBUGFS_HWMASKNAME, 0600, entry, p);

	dpu_debugfs_danger_init(dpu_kms, entry);
	dpu_debugfs_vbif_init(dpu_kms, entry);
	dpu_debugfs_core_irq_init(dpu_kms, entry);

	if (priv->dp)
		msm_dp_debugfs_init(priv->dp, minor);

	return dpu_core_perf_debugfs_init(dpu_kms, entry);
}
#endif

/* Global/shared object state funcs */

/*
 * This is a helper that returns the private state currently in operation.
 * Note that this would return the "old_state" if called in the atomic check
 * path, and the "new_state" after the atomic swap has been done.
 */
struct dpu_global_state *
dpu_kms_get_existing_global_state(struct dpu_kms *dpu_kms)
{
	return to_dpu_global_state(dpu_kms->global_state.state);
}

/*
 * This acquires the modeset lock set aside for global state, creates
 * a new duplicated private object state.
 */
struct dpu_global_state *dpu_kms_get_global_state(struct drm_atomic_state *s)
{
	struct msm_drm_private *priv = s->dev->dev_private;
	struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
	struct drm_private_state *priv_state;
	int ret;

	ret = drm_modeset_lock(&dpu_kms->global_state_lock, s->acquire_ctx);
	if (ret)
		return ERR_PTR(ret);

	priv_state = drm_atomic_get_private_obj_state(s,
						&dpu_kms->global_state);
	if (IS_ERR(priv_state))
		return ERR_CAST(priv_state);

	return to_dpu_global_state(priv_state);
}

static struct drm_private_state *
dpu_kms_global_duplicate_state(struct drm_private_obj *obj)
{
	struct dpu_global_state *state;

	state = kmemdup(obj->state, sizeof(*state), GFP_KERNEL);
	if (!state)
		return NULL;

	__drm_atomic_helper_private_obj_duplicate_state(obj, &state->base);

	return &state->base;
}

static void dpu_kms_global_destroy_state(struct drm_private_obj *obj,
				      struct drm_private_state *state)
{
	struct dpu_global_state *dpu_state = to_dpu_global_state(state);

	kfree(dpu_state);
}

static const struct drm_private_state_funcs dpu_kms_global_state_funcs = {
	.atomic_duplicate_state = dpu_kms_global_duplicate_state,
	.atomic_destroy_state = dpu_kms_global_destroy_state,
};

static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms)
{
	struct dpu_global_state *state;

	drm_modeset_lock_init(&dpu_kms->global_state_lock);

	state = kzalloc(sizeof(*state), GFP_KERNEL);
	if (!state)
		return -ENOMEM;

	drm_atomic_private_obj_init(dpu_kms->dev, &dpu_kms->global_state,
				    &state->base,
				    &dpu_kms_global_state_funcs);
	return 0;
}

static int dpu_kms_parse_data_bus_icc_path(struct dpu_kms *dpu_kms)
{
	struct icc_path *path0;
	struct icc_path *path1;
	struct drm_device *dev = dpu_kms->dev;

	path0 = of_icc_get(dev->dev, "mdp0-mem");
	path1 = of_icc_get(dev->dev, "mdp1-mem");

	if (IS_ERR_OR_NULL(path0))
		return PTR_ERR_OR_ZERO(path0);

	dpu_kms->path[0] = path0;
	dpu_kms->num_paths = 1;

	if (!IS_ERR_OR_NULL(path1)) {
		dpu_kms->path[1] = path1;
		dpu_kms->num_paths++;
	}
	return 0;
}

static int dpu_kms_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
{
	return dpu_crtc_vblank(crtc, true);
}

static void dpu_kms_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
{
	dpu_crtc_vblank(crtc, false);
}

static void dpu_kms_enable_commit(struct msm_kms *kms)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
	pm_runtime_get_sync(&dpu_kms->pdev->dev);
}

static void dpu_kms_disable_commit(struct msm_kms *kms)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
	pm_runtime_put_sync(&dpu_kms->pdev->dev);
}

static ktime_t dpu_kms_vsync_time(struct msm_kms *kms, struct drm_crtc *crtc)
{
	struct drm_encoder *encoder;

	drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) {
		ktime_t vsync_time;

		if (dpu_encoder_vsync_time(encoder, &vsync_time) == 0)
			return vsync_time;
	}

	return ktime_get();
}

static void dpu_kms_prepare_commit(struct msm_kms *kms,
		struct drm_atomic_state *state)
{
	struct drm_crtc *crtc;
	struct drm_crtc_state *crtc_state;
	struct drm_encoder *encoder;
	int i;

	if (!kms)
		return;

	/* Call prepare_commit for all affected encoders */
	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
		drm_for_each_encoder_mask(encoder, crtc->dev,
					  crtc_state->encoder_mask) {
			dpu_encoder_prepare_commit(encoder);
		}
	}
}

static void dpu_kms_flush_commit(struct msm_kms *kms, unsigned crtc_mask)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
	struct drm_crtc *crtc;

	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask) {
		if (!crtc->state->active)
			continue;

		trace_dpu_kms_commit(DRMID(crtc));
		dpu_crtc_commit_kickoff(crtc);
	}
}

/*
 * Override the encoder enable since we need to setup the inline rotator and do
 * some crtc magic before enabling any bridge that might be present.
 */
void dpu_kms_encoder_enable(struct drm_encoder *encoder)
{
	const struct drm_encoder_helper_funcs *funcs = encoder->helper_private;
	struct drm_device *dev = encoder->dev;
	struct drm_crtc *crtc;

	/* Forward this enable call to the commit hook */
	if (funcs && funcs->commit)
		funcs->commit(encoder);

	drm_for_each_crtc(crtc, dev) {
		if (!(crtc->state->encoder_mask & drm_encoder_mask(encoder)))
			continue;

		trace_dpu_kms_enc_enable(DRMID(crtc));
	}
}

static void dpu_kms_complete_commit(struct msm_kms *kms, unsigned crtc_mask)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
	struct drm_crtc *crtc;

	DPU_ATRACE_BEGIN("kms_complete_commit");

	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
		dpu_crtc_complete_commit(crtc);

	DPU_ATRACE_END("kms_complete_commit");
}

static void dpu_kms_wait_for_commit_done(struct msm_kms *kms,
		struct drm_crtc *crtc)
{
	struct drm_encoder *encoder;
	struct drm_device *dev;
	int ret;

	if (!kms || !crtc || !crtc->state) {
		DPU_ERROR("invalid params\n");
		return;
	}

	dev = crtc->dev;

	if (!crtc->state->enable) {
		DPU_DEBUG("[crtc:%d] not enable\n", crtc->base.id);
		return;
	}

	if (!crtc->state->active) {
		DPU_DEBUG("[crtc:%d] not active\n", crtc->base.id);
		return;
	}

	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
		if (encoder->crtc != crtc)
			continue;
		/*
		 * Wait for post-flush if necessary to delay before
		 * plane_cleanup. For example, wait for vsync in case of video
		 * mode panels. This may be a no-op for command mode panels.
		 */
		trace_dpu_kms_wait_for_commit_done(DRMID(crtc));
		ret = dpu_encoder_wait_for_event(encoder, MSM_ENC_COMMIT_DONE);
		if (ret && ret != -EWOULDBLOCK) {
			DPU_ERROR("wait for commit done returned %d\n", ret);
			break;
		}
	}
}

static void dpu_kms_wait_flush(struct msm_kms *kms, unsigned crtc_mask)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
	struct drm_crtc *crtc;

	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
		dpu_kms_wait_for_commit_done(kms, crtc);
}

static int _dpu_kms_initialize_dsi(struct drm_device *dev,
				    struct msm_drm_private *priv,
				    struct dpu_kms *dpu_kms)
{
	struct drm_encoder *encoder = NULL;
	int i, rc = 0;

	if (!(priv->dsi[0] || priv->dsi[1]))
		return rc;

	/*TODO: Support two independent DSI connectors */
	encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_DSI);
	if (IS_ERR(encoder)) {
		DPU_ERROR("encoder init failed for dsi display\n");
		return PTR_ERR(encoder);
	}

	priv->encoders[priv->num_encoders++] = encoder;

	for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
		if (!priv->dsi[i])
			continue;

		rc = msm_dsi_modeset_init(priv->dsi[i], dev, encoder);
		if (rc) {
			DPU_ERROR("modeset_init failed for dsi[%d], rc = %d\n",
				i, rc);
			break;
		}
	}

	return rc;
}

static int _dpu_kms_initialize_displayport(struct drm_device *dev,
					    struct msm_drm_private *priv,
					    struct dpu_kms *dpu_kms)
{
	struct drm_encoder *encoder = NULL;
	int rc = 0;

	if (!priv->dp)
		return rc;

	encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS);
	if (IS_ERR(encoder)) {
		DPU_ERROR("encoder init failed for dsi display\n");
		return PTR_ERR(encoder);
	}

	rc = msm_dp_modeset_init(priv->dp, dev, encoder);
	if (rc) {
		DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
		drm_encoder_cleanup(encoder);
		return rc;
	}

	priv->encoders[priv->num_encoders++] = encoder;
	return rc;
}

/**
 * _dpu_kms_setup_displays - create encoders, bridges and connectors
 *                           for underlying displays
 * @dev:        Pointer to drm device structure
 * @priv:       Pointer to private drm device data
 * @dpu_kms:    Pointer to dpu kms structure
 * Returns:     Zero on success
 */
static int _dpu_kms_setup_displays(struct drm_device *dev,
				    struct msm_drm_private *priv,
				    struct dpu_kms *dpu_kms)
{
	int rc = 0;

	rc = _dpu_kms_initialize_dsi(dev, priv, dpu_kms);
	if (rc) {
		DPU_ERROR("initialize_dsi failed, rc = %d\n", rc);
		return rc;
	}

	rc = _dpu_kms_initialize_displayport(dev, priv, dpu_kms);
	if (rc) {
		DPU_ERROR("initialize_DP failed, rc = %d\n", rc);
		return rc;
	}

	return rc;
}

static void _dpu_kms_drm_obj_destroy(struct dpu_kms *dpu_kms)
{
	struct msm_drm_private *priv;
	int i;

	priv = dpu_kms->dev->dev_private;

	for (i = 0; i < priv->num_crtcs; i++)
		priv->crtcs[i]->funcs->destroy(priv->crtcs[i]);
	priv->num_crtcs = 0;

	for (i = 0; i < priv->num_planes; i++)
		priv->planes[i]->funcs->destroy(priv->planes[i]);
	priv->num_planes = 0;

	for (i = 0; i < priv->num_connectors; i++)
		priv->connectors[i]->funcs->destroy(priv->connectors[i]);
	priv->num_connectors = 0;

	for (i = 0; i < priv->num_encoders; i++)
		priv->encoders[i]->funcs->destroy(priv->encoders[i]);
	priv->num_encoders = 0;
}

static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
{
	struct drm_device *dev;
	struct drm_plane *primary_planes[MAX_PLANES], *plane;
	struct drm_plane *cursor_planes[MAX_PLANES] = { NULL };
	struct drm_crtc *crtc;

	struct msm_drm_private *priv;
	struct dpu_mdss_cfg *catalog;

	int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret;
	int max_crtc_count;
	dev = dpu_kms->dev;
	priv = dev->dev_private;
	catalog = dpu_kms->catalog;

	/*
	 * Create encoder and query display drivers to create
	 * bridges and connectors
	 */
	ret = _dpu_kms_setup_displays(dev, priv, dpu_kms);
	if (ret)
		goto fail;

	max_crtc_count = min(catalog->mixer_count, priv->num_encoders);

	/* Create the planes, keeping track of one primary/cursor per crtc */
	for (i = 0; i < catalog->sspp_count; i++) {
		enum drm_plane_type type;

		if ((catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR))
			&& cursor_planes_idx < max_crtc_count)
			type = DRM_PLANE_TYPE_CURSOR;
		else if (primary_planes_idx < max_crtc_count)
			type = DRM_PLANE_TYPE_PRIMARY;
		else
			type = DRM_PLANE_TYPE_OVERLAY;

		DPU_DEBUG("Create plane type %d with features %lx (cur %lx)\n",
			  type, catalog->sspp[i].features,
			  catalog->sspp[i].features & BIT(DPU_SSPP_CURSOR));

		plane = dpu_plane_init(dev, catalog->sspp[i].id, type,
				       (1UL << max_crtc_count) - 1, 0);
		if (IS_ERR(plane)) {
			DPU_ERROR("dpu_plane_init failed\n");
			ret = PTR_ERR(plane);
			goto fail;
		}
		priv->planes[priv->num_planes++] = plane;

		if (type == DRM_PLANE_TYPE_CURSOR)
			cursor_planes[cursor_planes_idx++] = plane;
		else if (type == DRM_PLANE_TYPE_PRIMARY)
			primary_planes[primary_planes_idx++] = plane;
	}

	max_crtc_count = min(max_crtc_count, primary_planes_idx);

	/* Create one CRTC per encoder */
	for (i = 0; i < max_crtc_count; i++) {
		crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i]);
		if (IS_ERR(crtc)) {
			ret = PTR_ERR(crtc);
			goto fail;
		}
		priv->crtcs[priv->num_crtcs++] = crtc;
	}

	/* All CRTCs are compatible with all encoders */
	for (i = 0; i < priv->num_encoders; i++)
		priv->encoders[i]->possible_crtcs = (1 << priv->num_crtcs) - 1;

	return 0;
fail:
	_dpu_kms_drm_obj_destroy(dpu_kms);
	return ret;
}

static long dpu_kms_round_pixclk(struct msm_kms *kms, unsigned long rate,
		struct drm_encoder *encoder)
{
	return rate;
}

static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms)
{
	int i;

	if (dpu_kms->hw_intr)
		dpu_hw_intr_destroy(dpu_kms->hw_intr);
	dpu_kms->hw_intr = NULL;

	/* safe to call these more than once during shutdown */
	_dpu_kms_mmu_destroy(dpu_kms);

	if (dpu_kms->catalog) {
		for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
			u32 vbif_idx = dpu_kms->catalog->vbif[i].id;

			if ((vbif_idx < VBIF_MAX) && dpu_kms->hw_vbif[vbif_idx])
				dpu_hw_vbif_destroy(dpu_kms->hw_vbif[vbif_idx]);
		}
	}

	if (dpu_kms->rm_init)
		dpu_rm_destroy(&dpu_kms->rm);
	dpu_kms->rm_init = false;

	if (dpu_kms->catalog)
		dpu_hw_catalog_deinit(dpu_kms->catalog);
	dpu_kms->catalog = NULL;

	if (dpu_kms->vbif[VBIF_NRT])
		devm_iounmap(&dpu_kms->pdev->dev, dpu_kms->vbif[VBIF_NRT]);
	dpu_kms->vbif[VBIF_NRT] = NULL;

	if (dpu_kms->vbif[VBIF_RT])
		devm_iounmap(&dpu_kms->pdev->dev, dpu_kms->vbif[VBIF_RT]);
	dpu_kms->vbif[VBIF_RT] = NULL;

	if (dpu_kms->hw_mdp)
		dpu_hw_mdp_destroy(dpu_kms->hw_mdp);
	dpu_kms->hw_mdp = NULL;

	if (dpu_kms->mmio)
		devm_iounmap(&dpu_kms->pdev->dev, dpu_kms->mmio);
	dpu_kms->mmio = NULL;
}

static void dpu_kms_destroy(struct msm_kms *kms)
{
	struct dpu_kms *dpu_kms;

	if (!kms) {
		DPU_ERROR("invalid kms\n");
		return;
	}

	dpu_kms = to_dpu_kms(kms);

	_dpu_kms_hw_destroy(dpu_kms);

	msm_kms_destroy(&dpu_kms->base);
}

static void _dpu_kms_set_encoder_mode(struct msm_kms *kms,
				 struct drm_encoder *encoder,
				 bool cmd_mode)
{
	struct msm_display_info info;
	struct msm_drm_private *priv = encoder->dev->dev_private;
	int i, rc = 0;

	memset(&info, 0, sizeof(info));

	info.intf_type = encoder->encoder_type;
	info.capabilities = cmd_mode ? MSM_DISPLAY_CAP_CMD_MODE :
			MSM_DISPLAY_CAP_VID_MODE;

	switch (info.intf_type) {
	case DRM_MODE_ENCODER_DSI:
		/* TODO: No support for DSI swap */
		for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
			if (priv->dsi[i]) {
				info.h_tile_instance[info.num_of_h_tiles] = i;
				info.num_of_h_tiles++;
			}
		}
		break;
	case DRM_MODE_ENCODER_TMDS:
		info.num_of_h_tiles = 1;
		break;
	}

	rc = dpu_encoder_setup(encoder->dev, encoder, &info);
	if (rc)
		DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
			encoder->base.id, rc);
}

static irqreturn_t dpu_irq(struct msm_kms *kms)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);

	return dpu_core_irq(dpu_kms);
}

static void dpu_irq_preinstall(struct msm_kms *kms)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);

	dpu_core_irq_preinstall(dpu_kms);
}

static int dpu_irq_postinstall(struct msm_kms *kms)
{
	struct msm_drm_private *priv;
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);

	if (!dpu_kms || !dpu_kms->dev)
		return -EINVAL;

	priv = dpu_kms->dev->dev_private;
	if (!priv)
		return -EINVAL;

	msm_dp_irq_postinstall(priv->dp);

	return 0;
}

static void dpu_irq_uninstall(struct msm_kms *kms)
{
	struct dpu_kms *dpu_kms = to_dpu_kms(kms);

	dpu_core_irq_uninstall(dpu_kms);
}

static const struct msm_kms_funcs kms_funcs = {
	.hw_init         = dpu_kms_hw_init,
	.irq_preinstall  = dpu_irq_preinstall,
	.irq_postinstall = dpu_irq_postinstall,
	.irq_uninstall   = dpu_irq_uninstall,
	.irq             = dpu_irq,
	.enable_commit   = dpu_kms_enable_commit,
	.disable_commit  = dpu_kms_disable_commit,
	.vsync_time      = dpu_kms_vsync_time,
	.prepare_commit  = dpu_kms_prepare_commit,
	.flush_commit    = dpu_kms_flush_commit,
	.wait_flush      = dpu_kms_wait_flush,
	.complete_commit = dpu_kms_complete_commit,
	.enable_vblank   = dpu_kms_enable_vblank,
	.disable_vblank  = dpu_kms_disable_vblank,
	.check_modified_format = dpu_format_check_modified_format,
	.get_format      = dpu_get_msm_format,
	.round_pixclk    = dpu_kms_round_pixclk,
	.destroy         = dpu_kms_destroy,
	.set_encoder_mode = _dpu_kms_set_encoder_mode,
#ifdef CONFIG_DEBUG_FS
	.debugfs_init    = dpu_kms_debugfs_init,
#endif
};

static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms)
{
	struct msm_mmu *mmu;

	if (!dpu_kms->base.aspace)
		return;

	mmu = dpu_kms->base.aspace->mmu;

	mmu->funcs->detach(mmu);
	msm_gem_address_space_put(dpu_kms->base.aspace);

	dpu_kms->base.aspace = NULL;
}

static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms)
{
	struct iommu_domain *domain;
	struct msm_gem_address_space *aspace;
	struct msm_mmu *mmu;

	domain = iommu_domain_alloc(&platform_bus_type);
	if (!domain)
		return 0;

	mmu = msm_iommu_new(dpu_kms->dev->dev, domain);
	aspace = msm_gem_address_space_create(mmu, "dpu1",
		0x1000, 0x100000000 - 0x1000);

	if (IS_ERR(aspace)) {
		mmu->funcs->destroy(mmu);
		return PTR_ERR(aspace);
	}

	dpu_kms->base.aspace = aspace;
	return 0;
}

static struct dss_clk *_dpu_kms_get_clk(struct dpu_kms *dpu_kms,
		char *clock_name)
{
	struct dss_module_power *mp = &dpu_kms->mp;
	int i;

	for (i = 0; i < mp->num_clk; i++) {
		if (!strcmp(mp->clk_config[i].clk_name, clock_name))
			return &mp->clk_config[i];
	}

	return NULL;
}

u64 dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name)
{
	struct dss_clk *clk;

	clk = _dpu_kms_get_clk(dpu_kms, clock_name);
	if (!clk)
		return -EINVAL;

	return clk_get_rate(clk->clk);
}

static int dpu_kms_hw_init(struct msm_kms *kms)
{
	struct dpu_kms *dpu_kms;
	struct drm_device *dev;
	int i, rc = -EINVAL;

	if (!kms) {
		DPU_ERROR("invalid kms\n");
		return rc;
	}

	dpu_kms = to_dpu_kms(kms);
	dev = dpu_kms->dev;

	rc = dpu_kms_global_obj_init(dpu_kms);
	if (rc)
		return rc;

	atomic_set(&dpu_kms->bandwidth_ref, 0);

	dpu_kms->mmio = msm_ioremap(dpu_kms->pdev, "mdp", "mdp");
	if (IS_ERR(dpu_kms->mmio)) {
		rc = PTR_ERR(dpu_kms->mmio);
		DPU_ERROR("mdp register memory map failed: %d\n", rc);
		dpu_kms->mmio = NULL;
		goto error;
	}
	DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio);

	dpu_kms->vbif[VBIF_RT] = msm_ioremap(dpu_kms->pdev, "vbif", "vbif");
	if (IS_ERR(dpu_kms->vbif[VBIF_RT])) {
		rc = PTR_ERR(dpu_kms->vbif[VBIF_RT]);
		DPU_ERROR("vbif register memory map failed: %d\n", rc);
		dpu_kms->vbif[VBIF_RT] = NULL;
		goto error;
	}
	dpu_kms->vbif[VBIF_NRT] = msm_ioremap_quiet(dpu_kms->pdev, "vbif_nrt", "vbif_nrt");
	if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) {
		dpu_kms->vbif[VBIF_NRT] = NULL;
		DPU_DEBUG("VBIF NRT is not defined");
	}

	dpu_kms->reg_dma = msm_ioremap_quiet(dpu_kms->pdev, "regdma", "regdma");
	if (IS_ERR(dpu_kms->reg_dma)) {
		dpu_kms->reg_dma = NULL;
		DPU_DEBUG("REG_DMA is not defined");
	}

	pm_runtime_get_sync(&dpu_kms->pdev->dev);

	dpu_kms->core_rev = readl_relaxed(dpu_kms->mmio + 0x0);

	pr_info("dpu hardware revision:0x%x\n", dpu_kms->core_rev);

	dpu_kms->catalog = dpu_hw_catalog_init(dpu_kms->core_rev);
	if (IS_ERR_OR_NULL(dpu_kms->catalog)) {
		rc = PTR_ERR(dpu_kms->catalog);
		if (!dpu_kms->catalog)
			rc = -EINVAL;
		DPU_ERROR("catalog init failed: %d\n", rc);
		dpu_kms->catalog = NULL;
		goto power_error;
	}

	/*
	 * Now we need to read the HW catalog and initialize resources such as
	 * clocks, regulators, GDSC/MMAGIC, ioremap the register ranges etc
	 */
	rc = _dpu_kms_mmu_init(dpu_kms);
	if (rc) {
		DPU_ERROR("dpu_kms_mmu_init failed: %d\n", rc);
		goto power_error;
	}

	rc = dpu_rm_init(&dpu_kms->rm, dpu_kms->catalog, dpu_kms->mmio);
	if (rc) {
		DPU_ERROR("rm init failed: %d\n", rc);
		goto power_error;
	}

	dpu_kms->rm_init = true;

	dpu_kms->hw_mdp = dpu_hw_mdptop_init(MDP_TOP, dpu_kms->mmio,
					     dpu_kms->catalog);
	if (IS_ERR(dpu_kms->hw_mdp)) {
		rc = PTR_ERR(dpu_kms->hw_mdp);
		DPU_ERROR("failed to get hw_mdp: %d\n", rc);
		dpu_kms->hw_mdp = NULL;
		goto power_error;
	}

	for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
		u32 vbif_idx = dpu_kms->catalog->vbif[i].id;

		dpu_kms->hw_vbif[i] = dpu_hw_vbif_init(vbif_idx,
				dpu_kms->vbif[vbif_idx], dpu_kms->catalog);
		if (IS_ERR_OR_NULL(dpu_kms->hw_vbif[vbif_idx])) {
			rc = PTR_ERR(dpu_kms->hw_vbif[vbif_idx]);
			if (!dpu_kms->hw_vbif[vbif_idx])
				rc = -EINVAL;
			DPU_ERROR("failed to init vbif %d: %d\n", vbif_idx, rc);
			dpu_kms->hw_vbif[vbif_idx] = NULL;
			goto power_error;
		}
	}

	rc = dpu_core_perf_init(&dpu_kms->perf, dev, dpu_kms->catalog,
			_dpu_kms_get_clk(dpu_kms, "core"));
	if (rc) {
		DPU_ERROR("failed to init perf %d\n", rc);
		goto perf_err;
	}

	dpu_kms->hw_intr = dpu_hw_intr_init(dpu_kms->mmio, dpu_kms->catalog);
	if (IS_ERR_OR_NULL(dpu_kms->hw_intr)) {
		rc = PTR_ERR(dpu_kms->hw_intr);
		DPU_ERROR("hw_intr init failed: %d\n", rc);
		dpu_kms->hw_intr = NULL;
		goto hw_intr_init_err;
	}

	dev->mode_config.min_width = 0;
	dev->mode_config.min_height = 0;

	/*
	 * max crtc width is equal to the max mixer width * 2 and max height is
	 * is 4K
	 */
	dev->mode_config.max_width =
			dpu_kms->catalog->caps->max_mixer_width * 2;
	dev->mode_config.max_height = 4096;

	/*
	 * Support format modifiers for compression etc.
	 */
	dev->mode_config.allow_fb_modifiers = true;

	/*
	 * _dpu_kms_drm_obj_init should create the DRM related objects
	 * i.e. CRTCs, planes, encoders, connectors and so forth
	 */
	rc = _dpu_kms_drm_obj_init(dpu_kms);
	if (rc) {
		DPU_ERROR("modeset init failed: %d\n", rc);
		goto drm_obj_init_err;
	}

	dpu_vbif_init_memtypes(dpu_kms);

	if (of_device_is_compatible(dev->dev->of_node, "qcom,sc7180-mdss"))
		dpu_kms_parse_data_bus_icc_path(dpu_kms);

	pm_runtime_put_sync(&dpu_kms->pdev->dev);

	return 0;

drm_obj_init_err:
	dpu_core_perf_destroy(&dpu_kms->perf);
hw_intr_init_err:
perf_err:
power_error:
	pm_runtime_put_sync(&dpu_kms->pdev->dev);
error:
	_dpu_kms_hw_destroy(dpu_kms);

	return rc;
}

struct msm_kms *dpu_kms_init(struct drm_device *dev)
{
	struct msm_drm_private *priv;
	struct dpu_kms *dpu_kms;
	int irq;

	if (!dev) {
		DPU_ERROR("drm device node invalid\n");
		return ERR_PTR(-EINVAL);
	}

	priv = dev->dev_private;
	dpu_kms = to_dpu_kms(priv->kms);

	irq = irq_of_parse_and_map(dpu_kms->pdev->dev.of_node, 0);
	if (irq < 0) {
		DPU_ERROR("failed to get irq: %d\n", irq);
		return ERR_PTR(irq);
	}
	dpu_kms->base.irq = irq;

	return &dpu_kms->base;
}

static int dpu_bind(struct device *dev, struct device *master, void *data)
{
	struct drm_device *ddev = dev_get_drvdata(master);
	struct platform_device *pdev = to_platform_device(dev);
	struct msm_drm_private *priv = ddev->dev_private;
	struct dpu_kms *dpu_kms;
	struct dss_module_power *mp;
	int ret = 0;

	dpu_kms = devm_kzalloc(&pdev->dev, sizeof(*dpu_kms), GFP_KERNEL);
	if (!dpu_kms)
		return -ENOMEM;

	dpu_kms->opp_table = dev_pm_opp_set_clkname(dev, "core");
	if (IS_ERR(dpu_kms->opp_table))
		return PTR_ERR(dpu_kms->opp_table);
	/* OPP table is optional */
	ret = dev_pm_opp_of_add_table(dev);
	if (ret && ret != -ENODEV) {
		dev_err(dev, "invalid OPP table in device tree\n");
		goto put_clkname;
	}

	mp = &dpu_kms->mp;
	ret = msm_dss_parse_clock(pdev, mp);
	if (ret) {
		DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
		goto err;
	}

	platform_set_drvdata(pdev, dpu_kms);

	ret = msm_kms_init(&dpu_kms->base, &kms_funcs);
	if (ret) {
		DPU_ERROR("failed to init kms, ret=%d\n", ret);
		goto err;
	}
	dpu_kms->dev = ddev;
	dpu_kms->pdev = pdev;

	pm_runtime_enable(&pdev->dev);
	dpu_kms->rpm_enabled = true;

	priv->kms = &dpu_kms->base;
	return ret;
err:
	dev_pm_opp_of_remove_table(dev);
put_clkname:
	dev_pm_opp_put_clkname(dpu_kms->opp_table);
	return ret;
}

static void dpu_unbind(struct device *dev, struct device *master, void *data)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
	struct dss_module_power *mp = &dpu_kms->mp;

	msm_dss_put_clk(mp->clk_config, mp->num_clk);
	devm_kfree(&pdev->dev, mp->clk_config);
	mp->num_clk = 0;

	if (dpu_kms->rpm_enabled)
		pm_runtime_disable(&pdev->dev);

	dev_pm_opp_of_remove_table(dev);
	dev_pm_opp_put_clkname(dpu_kms->opp_table);
}

static const struct component_ops dpu_ops = {
	.bind   = dpu_bind,
	.unbind = dpu_unbind,
};

static int dpu_dev_probe(struct platform_device *pdev)
{
	return component_add(&pdev->dev, &dpu_ops);
}

static int dpu_dev_remove(struct platform_device *pdev)
{
	component_del(&pdev->dev, &dpu_ops);
	return 0;
}

static int __maybe_unused dpu_runtime_suspend(struct device *dev)
{
	int i, rc = -1;
	struct platform_device *pdev = to_platform_device(dev);
	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
	struct dss_module_power *mp = &dpu_kms->mp;

	/* Drop the performance state vote */
	dev_pm_opp_set_rate(dev, 0);
	rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
	if (rc)
		DPU_ERROR("clock disable failed rc:%d\n", rc);

	for (i = 0; i < dpu_kms->num_paths; i++)
		icc_set_bw(dpu_kms->path[i], 0, 0);

	return rc;
}

static int __maybe_unused dpu_runtime_resume(struct device *dev)
{
	int rc = -1;
	struct platform_device *pdev = to_platform_device(dev);
	struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
	struct drm_encoder *encoder;
	struct drm_device *ddev;
	struct dss_module_power *mp = &dpu_kms->mp;
	int i;

	ddev = dpu_kms->dev;

	/* Min vote of BW is required before turning on AXI clk */
	for (i = 0; i < dpu_kms->num_paths; i++)
		icc_set_bw(dpu_kms->path[i], 0,
			dpu_kms->catalog->perf.min_dram_ib);

	rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true);
	if (rc) {
		DPU_ERROR("clock enable failed rc:%d\n", rc);
		return rc;
	}

	dpu_vbif_init_memtypes(dpu_kms);

	drm_for_each_encoder(encoder, ddev)
		dpu_encoder_virt_runtime_resume(encoder);

	return rc;
}

static const struct dev_pm_ops dpu_pm_ops = {
	SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL)
	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
				pm_runtime_force_resume)
};

static const struct of_device_id dpu_dt_match[] = {
	{ .compatible = "qcom,sdm845-dpu", },
	{ .compatible = "qcom,sc7180-dpu", },
	{}
};
MODULE_DEVICE_TABLE(of, dpu_dt_match);

static struct platform_driver dpu_driver = {
	.probe = dpu_dev_probe,
	.remove = dpu_dev_remove,
	.driver = {
		.name = "msm_dpu",
		.of_match_table = dpu_dt_match,
		.pm = &dpu_pm_ops,
	},
};

void __init msm_dpu_register(void)
{
	platform_driver_register(&dpu_driver);
}

void __exit msm_dpu_unregister(void)
{
	platform_driver_unregister(&dpu_driver);
}