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v6.13.7
 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
 4 * Author:Mark Yao <mark.yao@rock-chips.com>
 5 */
 6
 7#include <linux/kernel.h>
 8
 9#include <drm/drm.h>
10#include <drm/drm_atomic.h>
11#include <drm/drm_damage_helper.h>
 
12#include <drm/drm_fourcc.h>
13#include <drm/drm_framebuffer.h>
14#include <drm/drm_gem_framebuffer_helper.h>
15#include <drm/drm_probe_helper.h>
16
17#include "rockchip_drm_drv.h"
18#include "rockchip_drm_fb.h"
19#include "rockchip_drm_gem.h"
20
21static const struct drm_framebuffer_funcs rockchip_drm_fb_funcs = {
22	.destroy       = drm_gem_fb_destroy,
23	.create_handle = drm_gem_fb_create_handle,
24	.dirty	       = drm_atomic_helper_dirtyfb,
25};
26
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
27static const struct drm_mode_config_helper_funcs rockchip_mode_config_helpers = {
28	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
29};
30
31static struct drm_framebuffer *
32rockchip_fb_create(struct drm_device *dev, struct drm_file *file,
33		   const struct drm_mode_fb_cmd2 *mode_cmd)
34{
35	struct drm_afbc_framebuffer *afbc_fb;
36	const struct drm_format_info *info;
37	int ret;
38
39	info = drm_get_format_info(dev, mode_cmd);
40	if (!info)
41		return ERR_PTR(-ENOMEM);
42
43	afbc_fb = kzalloc(sizeof(*afbc_fb), GFP_KERNEL);
44	if (!afbc_fb)
45		return ERR_PTR(-ENOMEM);
46
47	ret = drm_gem_fb_init_with_funcs(dev, &afbc_fb->base, file, mode_cmd,
48					 &rockchip_drm_fb_funcs);
49	if (ret) {
50		kfree(afbc_fb);
51		return ERR_PTR(ret);
52	}
53
54	if (drm_is_afbc(mode_cmd->modifier[0])) {
55		int ret, i;
56
57		ret = drm_gem_fb_afbc_init(dev, mode_cmd, afbc_fb);
58		if (ret) {
59			struct drm_gem_object **obj = afbc_fb->base.obj;
60
61			for (i = 0; i < info->num_planes; ++i)
62				drm_gem_object_put(obj[i]);
63
64			kfree(afbc_fb);
65			return ERR_PTR(ret);
66		}
67	}
68
69	return &afbc_fb->base;
70}
71
72static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = {
73	.fb_create = rockchip_fb_create,
 
74	.atomic_check = drm_atomic_helper_check,
75	.atomic_commit = drm_atomic_helper_commit,
76};
77
 
 
 
 
 
 
 
 
 
 
 
 
 
 
78void rockchip_drm_mode_config_init(struct drm_device *dev)
79{
80	dev->mode_config.min_width = 0;
81	dev->mode_config.min_height = 0;
82
83	/*
84	 * set max width and height as default value(4096x4096).
85	 * this value would be used to check framebuffer size limitation
86	 * at drm_mode_addfb().
87	 */
88	dev->mode_config.max_width = 4096;
89	dev->mode_config.max_height = 4096;
90
91	dev->mode_config.funcs = &rockchip_drm_mode_config_funcs;
92	dev->mode_config.helper_private = &rockchip_mode_config_helpers;
93
94	dev->mode_config.normalize_zpos = true;
95}
v5.14.15
  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
  4 * Author:Mark Yao <mark.yao@rock-chips.com>
  5 */
  6
  7#include <linux/kernel.h>
  8
  9#include <drm/drm.h>
 10#include <drm/drm_atomic.h>
 11#include <drm/drm_damage_helper.h>
 12#include <drm/drm_fb_helper.h>
 13#include <drm/drm_fourcc.h>
 
 14#include <drm/drm_gem_framebuffer_helper.h>
 15#include <drm/drm_probe_helper.h>
 16
 17#include "rockchip_drm_drv.h"
 18#include "rockchip_drm_fb.h"
 19#include "rockchip_drm_gem.h"
 20
 21static const struct drm_framebuffer_funcs rockchip_drm_fb_funcs = {
 22	.destroy       = drm_gem_fb_destroy,
 23	.create_handle = drm_gem_fb_create_handle,
 24	.dirty	       = drm_atomic_helper_dirtyfb,
 25};
 26
 27static struct drm_framebuffer *
 28rockchip_fb_alloc(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cmd,
 29		  struct drm_gem_object **obj, unsigned int num_planes)
 30{
 31	struct drm_framebuffer *fb;
 32	int ret;
 33	int i;
 34
 35	fb = kzalloc(sizeof(*fb), GFP_KERNEL);
 36	if (!fb)
 37		return ERR_PTR(-ENOMEM);
 38
 39	drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
 40
 41	for (i = 0; i < num_planes; i++)
 42		fb->obj[i] = obj[i];
 43
 44	ret = drm_framebuffer_init(dev, fb, &rockchip_drm_fb_funcs);
 45	if (ret) {
 46		DRM_DEV_ERROR(dev->dev,
 47			      "Failed to initialize framebuffer: %d\n",
 48			      ret);
 49		kfree(fb);
 50		return ERR_PTR(ret);
 51	}
 52
 53	return fb;
 54}
 55
 56static const struct drm_mode_config_helper_funcs rockchip_mode_config_helpers = {
 57	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
 58};
 59
 60static struct drm_framebuffer *
 61rockchip_fb_create(struct drm_device *dev, struct drm_file *file,
 62		   const struct drm_mode_fb_cmd2 *mode_cmd)
 63{
 64	struct drm_afbc_framebuffer *afbc_fb;
 65	const struct drm_format_info *info;
 66	int ret;
 67
 68	info = drm_get_format_info(dev, mode_cmd);
 69	if (!info)
 70		return ERR_PTR(-ENOMEM);
 71
 72	afbc_fb = kzalloc(sizeof(*afbc_fb), GFP_KERNEL);
 73	if (!afbc_fb)
 74		return ERR_PTR(-ENOMEM);
 75
 76	ret = drm_gem_fb_init_with_funcs(dev, &afbc_fb->base, file, mode_cmd,
 77					 &rockchip_drm_fb_funcs);
 78	if (ret) {
 79		kfree(afbc_fb);
 80		return ERR_PTR(ret);
 81	}
 82
 83	if (drm_is_afbc(mode_cmd->modifier[0])) {
 84		int ret, i;
 85
 86		ret = drm_gem_fb_afbc_init(dev, mode_cmd, afbc_fb);
 87		if (ret) {
 88			struct drm_gem_object **obj = afbc_fb->base.obj;
 89
 90			for (i = 0; i < info->num_planes; ++i)
 91				drm_gem_object_put(obj[i]);
 92
 93			kfree(afbc_fb);
 94			return ERR_PTR(ret);
 95		}
 96	}
 97
 98	return &afbc_fb->base;
 99}
100
101static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = {
102	.fb_create = rockchip_fb_create,
103	.output_poll_changed = drm_fb_helper_output_poll_changed,
104	.atomic_check = drm_atomic_helper_check,
105	.atomic_commit = drm_atomic_helper_commit,
106};
107
108struct drm_framebuffer *
109rockchip_drm_framebuffer_init(struct drm_device *dev,
110			      const struct drm_mode_fb_cmd2 *mode_cmd,
111			      struct drm_gem_object *obj)
112{
113	struct drm_framebuffer *fb;
114
115	fb = rockchip_fb_alloc(dev, mode_cmd, &obj, 1);
116	if (IS_ERR(fb))
117		return ERR_CAST(fb);
118
119	return fb;
120}
121
122void rockchip_drm_mode_config_init(struct drm_device *dev)
123{
124	dev->mode_config.min_width = 0;
125	dev->mode_config.min_height = 0;
126
127	/*
128	 * set max width and height as default value(4096x4096).
129	 * this value would be used to check framebuffer size limitation
130	 * at drm_mode_addfb().
131	 */
132	dev->mode_config.max_width = 4096;
133	dev->mode_config.max_height = 4096;
134
135	dev->mode_config.funcs = &rockchip_drm_mode_config_funcs;
136	dev->mode_config.helper_private = &rockchip_mode_config_helpers;
 
 
137}