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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
....@@ -1,26 +1,18 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
34  * Copyright (C) 2013 Red Hat
45  * Author: Rob Clark <robdclark@gmail.com>
5
- *
6
- * This program is free software; you can redistribute it and/or modify it
7
- * under the terms of the GNU General Public License version 2 as published by
8
- * the Free Software Foundation.
9
- *
10
- * This program is distributed in the hope that it will be useful, but WITHOUT
11
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13
- * more details.
14
- *
15
- * You should have received a copy of the GNU General Public License along with
16
- * this program.  If not, see <http://www.gnu.org/licenses/>.
176  */
187 
198 #include <linux/sort.h>
9
+
2010 #include <drm/drm_mode.h>
2111 #include <drm/drm_crtc.h>
22
-#include <drm/drm_crtc_helper.h>
2312 #include <drm/drm_flip_work.h>
13
+#include <drm/drm_fourcc.h>
14
+#include <drm/drm_probe_helper.h>
15
+#include <drm/drm_vblank.h>
2416 
2517 #include "mdp5_kms.h"
2618 
....@@ -173,8 +165,8 @@
173165 	struct mdp5_kms *mdp5_kms = get_kms(&mdp5_crtc->base);
174166 	struct msm_kms *kms = &mdp5_kms->base.base;
175167 
176
-	msm_gem_put_iova(val, kms->aspace);
177
-	drm_gem_object_put_unlocked(val);
168
+	msm_gem_unpin_iova(val, kms->aspace);
169
+	drm_gem_object_put(val);
178170 }
179171 
180172 static void mdp5_crtc_destroy(struct drm_crtc *crtc)
....@@ -222,7 +214,6 @@
222214 	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
223215 	struct mdp5_kms *mdp5_kms = get_kms(crtc);
224216 	struct drm_plane *plane;
225
-	const struct mdp5_cfg_hw *hw_cfg;
226217 	struct mdp5_plane_state *pstate, *pstates[STAGE_MAX + 1] = {NULL};
227218 	const struct mdp_format *format;
228219 	struct mdp5_hw_mixer *mixer = pipeline->mixer;
....@@ -239,8 +230,6 @@
239230 	u32 mixer_op_mode = 0;
240231 	u32 val;
241232 #define blender(stage)	((stage) - STAGE0)
242
-
243
-	hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
244233 
245234 	spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
246235 
....@@ -384,14 +373,7 @@
384373 
385374 	mode = &crtc->state->adjusted_mode;
386375 
387
-	DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
388
-			crtc->name, mode->base.id, mode->name,
389
-			mode->vrefresh, mode->clock,
390
-			mode->hdisplay, mode->hsync_start,
391
-			mode->hsync_end, mode->htotal,
392
-			mode->vdisplay, mode->vsync_start,
393
-			mode->vsync_end, mode->vtotal,
394
-			mode->type, mode->flags);
376
+	DBG("%s: set mode: " DRM_MODE_FMT, crtc->name, DRM_MODE_ARG(mode));
395377 
396378 	mixer_width = mode->hdisplay;
397379 	if (r_mixer)
....@@ -421,6 +403,83 @@
421403 	}
422404 
423405 	spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
406
+}
407
+
408
+static struct drm_encoder *get_encoder_from_crtc(struct drm_crtc *crtc)
409
+{
410
+	struct drm_device *dev = crtc->dev;
411
+	struct drm_encoder *encoder;
412
+
413
+	drm_for_each_encoder(encoder, dev)
414
+		if (encoder->crtc == crtc)
415
+			return encoder;
416
+
417
+	return NULL;
418
+}
419
+
420
+static bool mdp5_crtc_get_scanout_position(struct drm_crtc *crtc,
421
+					   bool in_vblank_irq,
422
+					   int *vpos, int *hpos,
423
+					   ktime_t *stime, ktime_t *etime,
424
+					   const struct drm_display_mode *mode)
425
+{
426
+	unsigned int pipe = crtc->index;
427
+	struct drm_encoder *encoder;
428
+	int line, vsw, vbp, vactive_start, vactive_end, vfp_end;
429
+
430
+
431
+	encoder = get_encoder_from_crtc(crtc);
432
+	if (!encoder) {
433
+		DRM_ERROR("no encoder found for crtc %d\n", pipe);
434
+		return false;
435
+	}
436
+
437
+	vsw = mode->crtc_vsync_end - mode->crtc_vsync_start;
438
+	vbp = mode->crtc_vtotal - mode->crtc_vsync_end;
439
+
440
+	/*
441
+	 * the line counter is 1 at the start of the VSYNC pulse and VTOTAL at
442
+	 * the end of VFP. Translate the porch values relative to the line
443
+	 * counter positions.
444
+	 */
445
+
446
+	vactive_start = vsw + vbp + 1;
447
+
448
+	vactive_end = vactive_start + mode->crtc_vdisplay;
449
+
450
+	/* last scan line before VSYNC */
451
+	vfp_end = mode->crtc_vtotal;
452
+
453
+	if (stime)
454
+		*stime = ktime_get();
455
+
456
+	line = mdp5_encoder_get_linecount(encoder);
457
+
458
+	if (line < vactive_start)
459
+		line -= vactive_start;
460
+	else if (line > vactive_end)
461
+		line = line - vfp_end - vactive_start;
462
+	else
463
+		line -= vactive_start;
464
+
465
+	*vpos = line;
466
+	*hpos = 0;
467
+
468
+	if (etime)
469
+		*etime = ktime_get();
470
+
471
+	return true;
472
+}
473
+
474
+static u32 mdp5_crtc_get_vblank_counter(struct drm_crtc *crtc)
475
+{
476
+	struct drm_encoder *encoder;
477
+
478
+	encoder = get_encoder_from_crtc(crtc);
479
+	if (!encoder)
480
+		return 0;
481
+
482
+	return mdp5_encoder_get_framecount(encoder);
424483 }
425484 
426485 static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc,
....@@ -455,6 +514,18 @@
455514 	}
456515 
457516 	mdp5_crtc->enabled = false;
517
+}
518
+
519
+static void mdp5_crtc_vblank_on(struct drm_crtc *crtc)
520
+{
521
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
522
+	struct mdp5_interface *intf = mdp5_cstate->pipeline.intf;
523
+	u32 count;
524
+
525
+	count = intf->mode == MDP5_INTF_DSI_MODE_COMMAND ? 0 : 0xffffffff;
526
+	drm_crtc_set_max_vblank_count(crtc, count);
527
+
528
+	drm_crtc_vblank_on(crtc);
458529 }
459530 
460531 static void mdp5_crtc_atomic_enable(struct drm_crtc *crtc,
....@@ -493,7 +564,7 @@
493564 	}
494565 
495566 	/* Restore vblank irq handling after power is enabled */
496
-	drm_crtc_vblank_on(crtc);
567
+	mdp5_crtc_vblank_on(crtc);
497568 
498569 	mdp5_crtc_mode_set_nofb(crtc);
499570 
....@@ -537,9 +608,15 @@
537608 		if (ret)
538609 			return ret;
539610 
540
-		mdp5_mixer_release(new_crtc_state->state, old_mixer);
611
+		ret = mdp5_mixer_release(new_crtc_state->state, old_mixer);
612
+		if (ret)
613
+			return ret;
614
+
541615 		if (old_r_mixer) {
542
-			mdp5_mixer_release(new_crtc_state->state, old_r_mixer);
616
+			ret = mdp5_mixer_release(new_crtc_state->state, old_r_mixer);
617
+			if (ret)
618
+				return ret;
619
+
543620 			if (!need_right_mixer)
544621 				pipeline->r_mixer = NULL;
545622 		}
....@@ -662,7 +739,7 @@
662739 
663740 	ret = mdp5_crtc_setup_pipeline(crtc, state, need_right_mixer);
664741 	if (ret) {
665
-		dev_err(dev->dev, "couldn't assign mixers %d\n", ret);
742
+		DRM_DEV_ERROR(dev->dev, "couldn't assign mixers %d\n", ret);
666743 		return ret;
667744 	}
668745 
....@@ -679,7 +756,7 @@
679756 	 * and that we don't have conflicting mixer stages:
680757 	 */
681758 	if ((cnt + start - 1) >= hw_cfg->lm.nb_stages) {
682
-		dev_err(dev->dev, "too many planes! cnt=%d, start stage=%d\n",
759
+		DRM_DEV_ERROR(dev->dev, "too many planes! cnt=%d, start stage=%d\n",
683760 			cnt, start);
684761 		return -EINVAL;
685762 	}
....@@ -789,6 +866,7 @@
789866 
790867 static void mdp5_crtc_restore_cursor(struct drm_crtc *crtc)
791868 {
869
+	const struct drm_format_info *info = drm_format_info(DRM_FORMAT_ARGB8888);
792870 	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
793871 	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
794872 	struct mdp5_kms *mdp5_kms = get_kms(crtc);
....@@ -807,7 +885,7 @@
807885 	width = mdp5_crtc->cursor.width;
808886 	height = mdp5_crtc->cursor.height;
809887 
810
-	stride = width * drm_format_plane_cpp(DRM_FORMAT_ARGB8888, 0);
888
+	stride = width * info->cpp[0];
811889 
812890 	get_roi(crtc, &roi_w, &roi_h);
813891 
....@@ -879,7 +957,7 @@
879957 	}
880958 
881959 	if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
882
-		dev_err(dev->dev, "bad cursor size: %dx%d\n", width, height);
960
+		DRM_DEV_ERROR(dev->dev, "bad cursor size: %dx%d\n", width, height);
883961 		return -EINVAL;
884962 	}
885963 
....@@ -887,7 +965,7 @@
887965 	if (!ctl)
888966 		return -EINVAL;
889967 
890
-	/* don't support LM cursors when we we have source split enabled */
968
+	/* don't support LM cursors when we have source split enabled */
891969 	if (mdp5_cstate->pipeline.r_mixer)
892970 		return -EINVAL;
893971 
....@@ -903,10 +981,12 @@
903981 	if (!cursor_bo)
904982 		return -ENOENT;
905983 
906
-	ret = msm_gem_get_iova(cursor_bo, kms->aspace,
984
+	ret = msm_gem_get_and_pin_iova(cursor_bo, kms->aspace,
907985 			&mdp5_crtc->cursor.iova);
908
-	if (ret)
986
+	if (ret) {
987
+		drm_gem_object_put(cursor_bo);
909988 		return -EINVAL;
989
+	}
910990 
911991 	pm_runtime_get_sync(&pdev->dev);
912992 
....@@ -924,7 +1004,7 @@
9241004 set_cursor:
9251005 	ret = mdp5_ctl_set_cursor(ctl, pipeline, 0, cursor_enable);
9261006 	if (ret) {
927
-		dev_err(dev->dev, "failed to %sable cursor: %d\n",
1007
+		DRM_DEV_ERROR(dev->dev, "failed to %sable cursor: %d\n",
9281008 				cursor_enable ? "en" : "dis", ret);
9291009 		goto end;
9301010 	}
....@@ -958,7 +1038,7 @@
9581038 		return -EINVAL;
9591039 	}
9601040 
961
-	/* don't support LM cursors when we we have source split enabled */
1041
+	/* don't support LM cursors when we have source split enabled */
9621042 	if (mdp5_cstate->pipeline.r_mixer)
9631043 		return -EINVAL;
9641044 
....@@ -1009,23 +1089,6 @@
10091089 	drm_printf(p, "\tcmd_mode=%d\n", mdp5_cstate->cmd_mode);
10101090 }
10111091 
1012
-static void mdp5_crtc_reset(struct drm_crtc *crtc)
1013
-{
1014
-	struct mdp5_crtc_state *mdp5_cstate;
1015
-
1016
-	if (crtc->state) {
1017
-		__drm_atomic_helper_crtc_destroy_state(crtc->state);
1018
-		kfree(to_mdp5_crtc_state(crtc->state));
1019
-	}
1020
-
1021
-	mdp5_cstate = kzalloc(sizeof(*mdp5_cstate), GFP_KERNEL);
1022
-
1023
-	if (mdp5_cstate) {
1024
-		mdp5_cstate->base.crtc = crtc;
1025
-		crtc->state = &mdp5_cstate->base;
1026
-	}
1027
-}
1028
-
10291092 static struct drm_crtc_state *
10301093 mdp5_crtc_duplicate_state(struct drm_crtc *crtc)
10311094 {
....@@ -1053,6 +1116,34 @@
10531116 	kfree(mdp5_cstate);
10541117 }
10551118 
1119
+static void mdp5_crtc_reset(struct drm_crtc *crtc)
1120
+{
1121
+	struct mdp5_crtc_state *mdp5_cstate =
1122
+		kzalloc(sizeof(*mdp5_cstate), GFP_KERNEL);
1123
+
1124
+	if (crtc->state)
1125
+		mdp5_crtc_destroy_state(crtc, crtc->state);
1126
+
1127
+	if (mdp5_cstate)
1128
+		__drm_atomic_helper_crtc_reset(crtc, &mdp5_cstate->base);
1129
+	else
1130
+		__drm_atomic_helper_crtc_reset(crtc, NULL);
1131
+}
1132
+
1133
+static const struct drm_crtc_funcs mdp5_crtc_no_lm_cursor_funcs = {
1134
+	.set_config = drm_atomic_helper_set_config,
1135
+	.destroy = mdp5_crtc_destroy,
1136
+	.page_flip = drm_atomic_helper_page_flip,
1137
+	.reset = mdp5_crtc_reset,
1138
+	.atomic_duplicate_state = mdp5_crtc_duplicate_state,
1139
+	.atomic_destroy_state = mdp5_crtc_destroy_state,
1140
+	.atomic_print_state = mdp5_crtc_atomic_print_state,
1141
+	.get_vblank_counter = mdp5_crtc_get_vblank_counter,
1142
+	.enable_vblank  = msm_crtc_enable_vblank,
1143
+	.disable_vblank = msm_crtc_disable_vblank,
1144
+	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
1145
+};
1146
+
10561147 static const struct drm_crtc_funcs mdp5_crtc_funcs = {
10571148 	.set_config = drm_atomic_helper_set_config,
10581149 	.destroy = mdp5_crtc_destroy,
....@@ -1063,6 +1154,10 @@
10631154 	.cursor_set = mdp5_crtc_cursor_set,
10641155 	.cursor_move = mdp5_crtc_cursor_move,
10651156 	.atomic_print_state = mdp5_crtc_atomic_print_state,
1157
+	.get_vblank_counter = mdp5_crtc_get_vblank_counter,
1158
+	.enable_vblank  = msm_crtc_enable_vblank,
1159
+	.disable_vblank = msm_crtc_disable_vblank,
1160
+	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
10661161 };
10671162 
10681163 static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
....@@ -1072,6 +1167,7 @@
10721167 	.atomic_flush = mdp5_crtc_atomic_flush,
10731168 	.atomic_enable = mdp5_crtc_atomic_enable,
10741169 	.atomic_disable = mdp5_crtc_atomic_disable,
1170
+	.get_scanout_position = mdp5_crtc_get_scanout_position,
10751171 };
10761172 
10771173 static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus)
....@@ -1105,7 +1201,7 @@
11051201 	struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc,
11061202 								pp_done);
11071203 
1108
-	complete(&mdp5_crtc->pp_completion);
1204
+	complete_all(&mdp5_crtc->pp_completion);
11091205 }
11101206 
11111207 static void mdp5_crtc_wait_for_pp_done(struct drm_crtc *crtc)
....@@ -1236,6 +1332,8 @@
12361332 	mdp5_crtc->lm_cursor_enabled = cursor_plane ? false : true;
12371333 
12381334 	drm_crtc_init_with_planes(dev, crtc, plane, cursor_plane,
1335
+				  cursor_plane ?
1336
+				  &mdp5_crtc_no_lm_cursor_funcs :
12391337 				  &mdp5_crtc_funcs, NULL);
12401338 
12411339 	drm_flip_work_init(&mdp5_crtc->unref_cursor_work,