mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/drivers/gpu/drm/mediatek/mtk_drm_drv.c
..
..
@@ -1,35 +1,34 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * Copyright (c) 2015 MediaTek Inc.
3
4
  * Author: YT SHEN <yt.shen@mediatek.com>
4
- *
5
- * This program is free software; you can redistribute it and/or modify
6
- * it under the terms of the GNU General Public License version 2 as
7
- * published by the Free Software Foundation.
8
- *
9
- * This program is distributed in the hope that it will be useful,
10
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
11
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
- * GNU General Public License for more details.
13
5
  */
14
6
 
15
-#include <drm/drmP.h>
16
-#include <drm/drm_atomic.h>
17
-#include <drm/drm_atomic_helper.h>
18
-#include <drm/drm_crtc_helper.h>
19
-#include <drm/drm_gem.h>
20
-#include <drm/drm_gem_cma_helper.h>
21
-#include <drm/drm_of.h>
22
7
 #include <linux/component.h>
23
8
 #include <linux/iommu.h>
9
+#include <linux/module.h>
24
10
 #include <linux/of_address.h>
25
11
 #include <linux/of_platform.h>
26
12
 #include <linux/pm_runtime.h>
13
+#include <linux/soc/mediatek/mtk-mmsys.h>
14
+#include <linux/dma-mapping.h>
15
+
16
+#include <drm/drm_atomic.h>
17
+#include <drm/drm_atomic_helper.h>
18
+#include <drm/drm_drv.h>
19
+#include <drm/drm_fb_helper.h>
20
+#include <drm/drm_fourcc.h>
21
+#include <drm/drm_gem.h>
22
+#include <drm/drm_gem_cma_helper.h>
23
+#include <drm/drm_gem_framebuffer_helper.h>
24
+#include <drm/drm_of.h>
25
+#include <drm/drm_probe_helper.h>
26
+#include <drm/drm_vblank.h>
27
27
 
28
28
 #include "mtk_drm_crtc.h"
29
29
 #include "mtk_drm_ddp.h"
30
30
 #include "mtk_drm_ddp_comp.h"
31
31
 #include "mtk_drm_drv.h"
32
-#include "mtk_drm_fb.h"
33
32
 #include "mtk_drm_gem.h"
34
33
 
35
34
 #define DRIVER_NAME "mediatek"
..
..
@@ -38,99 +37,27 @@
38
37
 #define DRIVER_MAJOR 1
39
38
 #define DRIVER_MINOR 0
40
39
 
41
-static void mtk_atomic_schedule(struct mtk_drm_private *private,
42
-				struct drm_atomic_state *state)
40
+static const struct drm_mode_config_helper_funcs mtk_drm_mode_config_helpers = {
41
+	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
42
+};
43
+
44
+static struct drm_framebuffer *
45
+mtk_drm_mode_fb_create(struct drm_device *dev,
46
+		       struct drm_file *file,
47
+		       const struct drm_mode_fb_cmd2 *cmd)
43
48
 {
44
-	private->commit.state = state;
45
-	schedule_work(&private->commit.work);
46
-}
49
+	const struct drm_format_info *info = drm_get_format_info(dev, cmd);
47
50
 
48
-static void mtk_atomic_wait_for_fences(struct drm_atomic_state *state)
49
-{
50
-	struct drm_plane *plane;
51
-	struct drm_plane_state *new_plane_state;
52
-	int i;
51
+	if (info->num_planes != 1)
52
+		return ERR_PTR(-EINVAL);
53
53
 
54
-	for_each_new_plane_in_state(state, plane, new_plane_state, i)
55
-		mtk_fb_wait(new_plane_state->fb);
56
-}
57
-
58
-static void mtk_atomic_complete(struct mtk_drm_private *private,
59
-				struct drm_atomic_state *state)
60
-{
61
-	struct drm_device *drm = private->drm;
62
-
63
-	mtk_atomic_wait_for_fences(state);
64
-
65
-	/*
66
-	 * Mediatek drm supports runtime PM, so plane registers cannot be
67
-	 * written when their crtc is disabled.
68
-	 *
69
-	 * The comment for drm_atomic_helper_commit states:
70
-	 *     For drivers supporting runtime PM the recommended sequence is
71
-	 *
72
-	 *     drm_atomic_helper_commit_modeset_disables(dev, state);
73
-	 *     drm_atomic_helper_commit_modeset_enables(dev, state);
74
-	 *     drm_atomic_helper_commit_planes(dev, state,
75
-	 *                                     DRM_PLANE_COMMIT_ACTIVE_ONLY);
76
-	 *
77
-	 * See the kerneldoc entries for these three functions for more details.
78
-	 */
79
-	drm_atomic_helper_commit_modeset_disables(drm, state);
80
-	drm_atomic_helper_commit_modeset_enables(drm, state);
81
-	drm_atomic_helper_commit_planes(drm, state,
82
-					DRM_PLANE_COMMIT_ACTIVE_ONLY);
83
-
84
-	drm_atomic_helper_wait_for_vblanks(drm, state);
85
-
86
-	drm_atomic_helper_cleanup_planes(drm, state);
87
-	drm_atomic_state_put(state);
88
-}
89
-
90
-static void mtk_atomic_work(struct work_struct *work)
91
-{
92
-	struct mtk_drm_private *private = container_of(work,
93
-			struct mtk_drm_private, commit.work);
94
-
95
-	mtk_atomic_complete(private, private->commit.state);
96
-}
97
-
98
-static int mtk_atomic_commit(struct drm_device *drm,
99
-			     struct drm_atomic_state *state,
100
-			     bool async)
101
-{
102
-	struct mtk_drm_private *private = drm->dev_private;
103
-	int ret;
104
-
105
-	ret = drm_atomic_helper_prepare_planes(drm, state);
106
-	if (ret)
107
-		return ret;
108
-
109
-	mutex_lock(&private->commit.lock);
110
-	flush_work(&private->commit.work);
111
-
112
-	ret = drm_atomic_helper_swap_state(state, true);
113
-	if (ret) {
114
-		mutex_unlock(&private->commit.lock);
115
-		drm_atomic_helper_cleanup_planes(drm, state);
116
-		return ret;
117
-	}
118
-
119
-	drm_atomic_state_get(state);
120
-	if (async)
121
-		mtk_atomic_schedule(private, state);
122
-	else
123
-		mtk_atomic_complete(private, state);
124
-
125
-	mutex_unlock(&private->commit.lock);
126
-
127
-	return 0;
54
+	return drm_gem_fb_create(dev, file, cmd);
128
55
 }
129
56
 
130
57
 static const struct drm_mode_config_funcs mtk_drm_mode_config_funcs = {
131
58
 	.fb_create = mtk_drm_mode_fb_create,
132
59
 	.atomic_check = drm_atomic_helper_check,
133
-	.atomic_commit = mtk_atomic_commit,
60
+	.atomic_commit = drm_atomic_helper_commit,
134
61
 };
135
62
 
136
63
 static const enum mtk_ddp_comp_id mt2701_mtk_ddp_main[] = {
..
..
@@ -144,6 +71,19 @@
144
71
 static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
145
72
 	DDP_COMPONENT_RDMA1,
146
73
 	DDP_COMPONENT_DPI0,
74
+};
75
+
76
+static const enum mtk_ddp_comp_id mt7623_mtk_ddp_main[] = {
77
+	DDP_COMPONENT_OVL0,
78
+	DDP_COMPONENT_RDMA0,
79
+	DDP_COMPONENT_COLOR0,
80
+	DDP_COMPONENT_BLS,
81
+	DDP_COMPONENT_DPI0,
82
+};
83
+
84
+static const enum mtk_ddp_comp_id mt7623_mtk_ddp_ext[] = {
85
+	DDP_COMPONENT_RDMA1,
86
+	DDP_COMPONENT_DSI0,
147
87
 };
148
88
 
149
89
 static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
..
..
@@ -199,6 +139,14 @@
199
139
 	.shadow_register = true,
200
140
 };
201
141
 
142
+static const struct mtk_mmsys_driver_data mt7623_mmsys_driver_data = {
143
+	.main_path = mt7623_mtk_ddp_main,
144
+	.main_len = ARRAY_SIZE(mt7623_mtk_ddp_main),
145
+	.ext_path = mt7623_mtk_ddp_ext,
146
+	.ext_len = ARRAY_SIZE(mt7623_mtk_ddp_ext),
147
+	.shadow_register = true,
148
+};
149
+
202
150
 static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
203
151
 	.main_path = mt2712_mtk_ddp_main,
204
152
 	.main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
..
..
@@ -235,7 +183,9 @@
235
183
 	}
236
184
 	private->mutex_dev = &pdev->dev;
237
185
 
238
-	drm_mode_config_init(drm);
186
+	ret = drmm_mode_config_init(drm);
187
+	if (ret)
188
+		goto put_mutex_dev;
239
189
 
240
190
 	drm->mode_config.min_width = 64;
241
191
 	drm->mode_config.min_height = 64;
..
..
@@ -248,10 +198,11 @@
248
198
 	drm->mode_config.max_width = 4096;
249
199
 	drm->mode_config.max_height = 4096;
250
200
 	drm->mode_config.funcs = &mtk_drm_mode_config_funcs;
201
+	drm->mode_config.helper_private = &mtk_drm_mode_config_helpers;
251
202
 
252
203
 	ret = component_bind_all(drm->dev, drm);
253
204
 	if (ret)
254
-		goto err_config_cleanup;
205
+		goto put_mutex_dev;
255
206
 
256
207
 	/*
257
208
 	 * We currently support two fixed data streams, each optional,
..
..
@@ -298,7 +249,7 @@
298
249
 	}
299
250
 	if (!dma_dev->dma_parms) {
300
251
 		ret = -ENOMEM;
301
-		goto err_component_unbind;
252
+		goto put_dma_dev;
302
253
 	}
303
254
 
304
255
 	ret = dma_set_max_seg_size(dma_dev, (unsigned int)DMA_BIT_MASK(32));
..
..
@@ -325,11 +276,12 @@
325
276
 err_unset_dma_parms:
326
277
 	if (private->dma_parms_allocated)
327
278
 		dma_dev->dma_parms = NULL;
279
+put_dma_dev:
280
+	put_device(private->dma_dev);
328
281
 err_component_unbind:
329
282
 	component_unbind_all(drm->dev, drm);
330
-err_config_cleanup:
331
-	drm_mode_config_cleanup(drm);
332
-
283
+put_mutex_dev:
284
+	put_device(private->mutex_dev);
333
285
 	return ret;
334
286
 }
335
287
 
..
..
@@ -344,7 +296,6 @@
344
296
 		private->dma_dev->dma_parms = NULL;
345
297
 
346
298
 	component_unbind_all(drm->dev, drm);
347
-	drm_mode_config_cleanup(drm);
348
299
 }
349
300
 
350
301
 static const struct file_operations mtk_drm_fops = {
..
..
@@ -371,8 +322,7 @@
371
322
 }
372
323
 
373
324
 static struct drm_driver mtk_drm_driver = {
374
-	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
375
-			   DRIVER_ATOMIC,
325
+	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
376
326
 
377
327
 	.gem_free_object_unlocked = mtk_drm_gem_free_object,
378
328
 	.gem_vm_ops = &drm_gem_cma_vm_ops,
..
..
@@ -380,11 +330,12 @@
380
330
 
381
331
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
382
332
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
383
-	.gem_prime_export = drm_gem_prime_export,
384
333
 	.gem_prime_import = mtk_drm_gem_prime_import,
385
334
 	.gem_prime_get_sg_table = mtk_gem_prime_get_sg_table,
386
335
 	.gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
387
336
 	.gem_prime_mmap = mtk_drm_gem_mmap_buf,
337
+	.gem_prime_vmap = mtk_drm_gem_prime_vmap,
338
+	.gem_prime_vunmap = mtk_drm_gem_prime_vunmap,
388
339
 	.fops = &mtk_drm_fops,
389
340
 
390
341
 	.name = DRIVER_NAME,
..
..
@@ -419,6 +370,8 @@
419
370
 	ret = drm_dev_register(drm, 0);
420
371
 	if (ret < 0)
421
372
 		goto err_deinit;
373
+
374
+	drm_fbdev_generic_setup(drm, 32);
422
375
 
423
376
 	return 0;
424
377
 
..
..
@@ -470,6 +423,8 @@
470
423
 	  .data = (void *)MTK_DSI },
471
424
 	{ .compatible = "mediatek,mt8173-dsi",
472
425
 	  .data = (void *)MTK_DSI },
426
+	{ .compatible = "mediatek,mt2701-dpi",
427
+	  .data = (void *)MTK_DPI },
473
428
 	{ .compatible = "mediatek,mt8173-dpi",
474
429
 	  .data = (void *)MTK_DPI },
475
430
 	{ .compatible = "mediatek,mt2701-disp-mutex",
..
..
@@ -487,11 +442,24 @@
487
442
 	{ }
488
443
 };
489
444
 
445
+static const struct of_device_id mtk_drm_of_ids[] = {
446
+	{ .compatible = "mediatek,mt2701-mmsys",
447
+	  .data = &mt2701_mmsys_driver_data},
448
+	{ .compatible = "mediatek,mt7623-mmsys",
449
+	  .data = &mt7623_mmsys_driver_data},
450
+	{ .compatible = "mediatek,mt2712-mmsys",
451
+	  .data = &mt2712_mmsys_driver_data},
452
+	{ .compatible = "mediatek,mt8173-mmsys",
453
+	  .data = &mt8173_mmsys_driver_data},
454
+	{ }
455
+};
456
+
490
457
 static int mtk_drm_probe(struct platform_device *pdev)
491
458
 {
492
459
 	struct device *dev = &pdev->dev;
460
+	struct device_node *phandle = dev->parent->of_node;
461
+	const struct of_device_id *of_id;
493
462
 	struct mtk_drm_private *private;
494
-	struct resource *mem;
495
463
 	struct device_node *node;
496
464
 	struct component_match *match = NULL;
497
465
 	int ret;
..
..
@@ -501,21 +469,20 @@
501
469
 	if (!private)
502
470
 		return -ENOMEM;
503
471
 
504
-	mutex_init(&private->commit.lock);
505
-	INIT_WORK(&private->commit.work, mtk_atomic_work);
506
-	private->data = of_device_get_match_data(dev);
507
-
508
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
509
-	private->config_regs = devm_ioremap_resource(dev, mem);
510
-	if (IS_ERR(private->config_regs)) {
511
-		ret = PTR_ERR(private->config_regs);
512
-		dev_err(dev, "Failed to ioremap mmsys-config resource: %d\n",
513
-			ret);
514
-		return ret;
472
+	private->mmsys_dev = dev->parent;
473
+	if (!private->mmsys_dev) {
474
+		dev_err(dev, "Failed to get MMSYS device\n");
475
+		return -ENODEV;
515
476
 	}
516
477
 
478
+	of_id = of_match_node(mtk_drm_of_ids, phandle);
479
+	if (!of_id)
480
+		return -ENODEV;
481
+
482
+	private->data = of_id->data;
483
+
517
484
 	/* Iterate over sibling DISP function blocks */
518
-	for_each_child_of_node(dev->of_node->parent, node) {
485
+	for_each_child_of_node(phandle->parent, node) {
519
486
 		const struct of_device_id *of_id;
520
487
 		enum mtk_ddp_comp_type comp_type;
521
488
 		int comp_id;
..
..
@@ -553,6 +520,7 @@
553
520
 		 */
554
521
 		if (comp_type == MTK_DISP_COLOR ||
555
522
 		    comp_type == MTK_DISP_OVL ||
523
+		    comp_type == MTK_DISP_OVL_2L ||
556
524
 		    comp_type == MTK_DISP_RDMA ||
557
525
 		    comp_type == MTK_DSI ||
558
526
 		    comp_type == MTK_DPI) {
..
..
@@ -570,7 +538,8 @@
570
538
 				goto err_node;
571
539
 			}
572
540
 
573
-			ret = mtk_ddp_comp_init(dev, node, comp, comp_id, NULL);
541
+			ret = mtk_ddp_comp_init(dev->parent, node, comp,
542
+						comp_id, NULL);
574
543
 			if (ret) {
575
544
 				of_node_put(node);
576
545
 				goto err_node;
..
..
@@ -632,7 +601,6 @@
632
601
 	int ret;
633
602
 
634
603
 	ret = drm_mode_config_helper_suspend(drm);
635
-	DRM_DEBUG_DRIVER("mtk_drm_sys_suspend\n");
636
604
 
637
605
 	return ret;
638
606
 }
..
..
@@ -644,7 +612,6 @@
644
612
 	int ret;
645
613
 
646
614
 	ret = drm_mode_config_helper_resume(drm);
647
-	DRM_DEBUG_DRIVER("mtk_drm_sys_resume\n");
648
615
 
649
616
 	return ret;
650
617
 }
..
..
@@ -653,22 +620,11 @@
653
620
 static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend,
654
621
 			 mtk_drm_sys_resume);
655
622
 
656
-static const struct of_device_id mtk_drm_of_ids[] = {
657
-	{ .compatible = "mediatek,mt2701-mmsys",
658
-	  .data = &mt2701_mmsys_driver_data},
659
-	{ .compatible = "mediatek,mt2712-mmsys",
660
-	  .data = &mt2712_mmsys_driver_data},
661
-	{ .compatible = "mediatek,mt8173-mmsys",
662
-	  .data = &mt8173_mmsys_driver_data},
663
-	{ }
664
-};
665
-
666
623
 static struct platform_driver mtk_drm_platform_driver = {
667
624
 	.probe	= mtk_drm_probe,
668
625
 	.remove	= mtk_drm_remove,
669
626
 	.driver	= {
670
627
 		.name	= "mediatek-drm",
671
-		.of_match_table = mtk_drm_of_ids,
672
628
 		.pm     = &mtk_drm_pm_ops,
673
629
 	},
674
630
 };
..
..
@@ -680,8 +636,8 @@
680
636
 	&mtk_disp_rdma_driver,
681
637
 	&mtk_dpi_driver,
682
638
 	&mtk_drm_platform_driver,
683
-	&mtk_dsi_driver,
684
639
 	&mtk_mipi_tx_driver,
640
+	&mtk_dsi_driver,
685
641
 };
686
642
 
687
643
 static int __init mtk_drm_init(void)