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
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
* Author:Mark Yao <mark.yao@rock-chips.com>
*/
#include <linux/kernel.h>
#include <drm/drm.h>
#include <drm/drm_atomic.h>
#include <drm/drm_damage_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_probe_helper.h>
#include "rockchip_drm_drv.h"
#include "rockchip_drm_fb.h"
#include "rockchip_drm_gem.h"
static const struct drm_framebuffer_funcs rockchip_drm_fb_funcs = {
.destroy = drm_gem_fb_destroy,
.create_handle = drm_gem_fb_create_handle,
.dirty = drm_atomic_helper_dirtyfb,
};
static const struct drm_mode_config_helper_funcs rockchip_mode_config_helpers = {
.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
};
static struct drm_framebuffer *
rockchip_fb_create(struct drm_device *dev, struct drm_file *file,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_afbc_framebuffer *afbc_fb;
const struct drm_format_info *info;
int ret;
info = drm_get_format_info(dev, mode_cmd);
if (!info)
return ERR_PTR(-ENOMEM);
afbc_fb = kzalloc(sizeof(*afbc_fb), GFP_KERNEL);
if (!afbc_fb)
return ERR_PTR(-ENOMEM);
ret = drm_gem_fb_init_with_funcs(dev, &afbc_fb->base, file, mode_cmd,
&rockchip_drm_fb_funcs);
if (ret) {
kfree(afbc_fb);
return ERR_PTR(ret);
}
if (drm_is_afbc(mode_cmd->modifier[0])) {
int ret, i;
ret = drm_gem_fb_afbc_init(dev, mode_cmd, afbc_fb);
if (ret) {
struct drm_gem_object **obj = afbc_fb->base.obj;
for (i = 0; i < info->num_planes; ++i)
drm_gem_object_put(obj[i]);
kfree(afbc_fb);
return ERR_PTR(ret);
}
}
return &afbc_fb->base;
}
static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = {
.fb_create = rockchip_fb_create,
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
};
void rockchip_drm_mode_config_init(struct drm_device *dev)
{
dev->mode_config.min_width = 0;
dev->mode_config.min_height = 0;
/*
* set max width and height as default value(4096x4096).
* this value would be used to check framebuffer size limitation
* at drm_mode_addfb().
*/
dev->mode_config.max_width = 4096;
dev->mode_config.max_height = 4096;
dev->mode_config.funcs = &rockchip_drm_mode_config_funcs;
dev->mode_config.helper_private = &rockchip_mode_config_helpers;
dev->mode_config.normalize_zpos = true;
}
|
