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
|
/*
* Copyright (C) 2012 Avionic Design GmbH
* Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/dma-mapping.h>
#include <asm/dma-iommu.h>
#include "drm.h"
#define DRIVER_NAME "tegra"
#define DRIVER_DESC "NVIDIA Tegra graphics"
#define DRIVER_DATE "20120330"
#define DRIVER_MAJOR 0
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0
static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
{
struct device *dev = drm->dev;
struct host1x *host1x;
int err;
host1x = dev_get_drvdata(dev);
drm->dev_private = host1x;
host1x->drm = drm;
drm_mode_config_init(drm);
err = host1x_drm_init(host1x, drm);
if (err < 0)
return err;
err = tegra_drm_fb_init(drm);
if (err < 0)
return err;
drm_kms_helper_poll_init(drm);
return 0;
}
static int tegra_drm_unload(struct drm_device *drm)
{
drm_kms_helper_poll_fini(drm);
tegra_drm_fb_exit(drm);
drm_mode_config_cleanup(drm);
return 0;
}
static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
{
return 0;
}
static void tegra_drm_lastclose(struct drm_device *drm)
{
struct host1x *host1x = drm->dev_private;
drm_fbdev_cma_restore_mode(host1x->fbdev);
}
static struct drm_ioctl_desc tegra_drm_ioctls[] = {
};
static const struct file_operations tegra_drm_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.mmap = drm_gem_cma_mmap,
.poll = drm_poll,
.fasync = drm_fasync,
.read = drm_read,
#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
#endif
.llseek = noop_llseek,
};
struct drm_driver tegra_drm_driver = {
.driver_features = DRIVER_BUS_PLATFORM | DRIVER_MODESET | DRIVER_GEM,
.load = tegra_drm_load,
.unload = tegra_drm_unload,
.open = tegra_drm_open,
.lastclose = tegra_drm_lastclose,
.gem_free_object = drm_gem_cma_free_object,
.gem_vm_ops = &drm_gem_cma_vm_ops,
.dumb_create = drm_gem_cma_dumb_create,
.dumb_map_offset = drm_gem_cma_dumb_map_offset,
.dumb_destroy = drm_gem_cma_dumb_destroy,
.ioctls = tegra_drm_ioctls,
.num_ioctls = ARRAY_SIZE(tegra_drm_ioctls),
.fops = &tegra_drm_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
};
|
