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
|
/*
* Copyright 2007 Nouveau Project
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdlib.h>
#include <errno.h>
#include "nouveau_drmif.h"
int
nouveau_grobj_alloc(struct nouveau_channel *chan, uint32_t handle,
int class, struct nouveau_grobj **grobj)
{
struct nouveau_device_priv *nvdev = nouveau_device(chan->device);
struct nouveau_grobj_priv *nvgrobj;
struct drm_nouveau_grobj_alloc g;
int ret;
if (!nvdev || !grobj || *grobj)
return -EINVAL;
nvgrobj = calloc(1, sizeof(*nvgrobj));
if (!nvgrobj)
return -ENOMEM;
nvgrobj->base.channel = chan;
nvgrobj->base.handle = handle;
nvgrobj->base.grclass = class;
g.channel = chan->id;
g.handle = handle;
g.class = class;
ret = drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GROBJ_ALLOC,
&g, sizeof(g));
if (ret) {
nouveau_grobj_free((void *)&nvgrobj);
return ret;
}
*grobj = &nvgrobj->base;
return 0;
}
int
nouveau_grobj_ref(struct nouveau_channel *chan, uint32_t handle,
struct nouveau_grobj **grobj)
{
struct nouveau_grobj_priv *nvgrobj;
if (!chan || !grobj || *grobj)
return -EINVAL;
nvgrobj = calloc(1, sizeof(struct nouveau_grobj_priv));
if (!nvgrobj)
return -ENOMEM;
nvgrobj->base.channel = chan;
nvgrobj->base.handle = handle;
nvgrobj->base.grclass = 0;
*grobj = &nvgrobj->base;
return 0;
}
void
nouveau_grobj_free(struct nouveau_grobj **grobj)
{
struct nouveau_device_priv *nvdev;
struct nouveau_channel_priv *chan;
struct nouveau_grobj_priv *nvgrobj;
if (!grobj || !*grobj)
return;
nvgrobj = nouveau_grobj(*grobj);
*grobj = NULL;
chan = nouveau_channel(nvgrobj->base.channel);
nvdev = nouveau_device(chan->base.device);
if (nvgrobj->base.grclass) {
struct drm_nouveau_gpuobj_free f;
f.channel = chan->drm.channel;
f.handle = nvgrobj->base.handle;
drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GPUOBJ_FREE,
&f, sizeof(f));
}
free(nvgrobj);
}
|
