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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* Copyright 2012 Red Hat Inc.
*
* 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*
* Authors: Ben Skeggs
*/
#include "priv.h"
/******************************************************************************
* instmem object base implementation
*****************************************************************************/
void
_nouveau_instobj_dtor(struct nouveau_object *object)
{
struct nouveau_instmem *imem = (void *)object->engine;
struct nouveau_instobj *iobj = (void *)object;
mutex_lock(&nv_subdev(imem)->mutex);
list_del(&iobj->head);
mutex_unlock(&nv_subdev(imem)->mutex);
return nouveau_object_destroy(&iobj->base);
}
int
nouveau_instobj_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
int length, void **pobject)
{
struct nouveau_instmem *imem = (void *)engine;
struct nouveau_instobj *iobj;
int ret;
ret = nouveau_object_create_(parent, engine, oclass, NV_MEMOBJ_CLASS,
length, pobject);
iobj = *pobject;
if (ret)
return ret;
mutex_lock(&imem->base.mutex);
list_add(&iobj->head, &imem->list);
mutex_unlock(&imem->base.mutex);
return 0;
}
/******************************************************************************
* instmem subdev base implementation
*****************************************************************************/
static int
nouveau_instmem_alloc(struct nouveau_instmem *imem,
struct nouveau_object *parent, u32 size, u32 align,
struct nouveau_object **pobject)
{
struct nouveau_object *engine = nv_object(imem);
struct nouveau_instmem_impl *impl = (void *)engine->oclass;
struct nouveau_instobj_args args = { .size = size, .align = align };
return nouveau_object_ctor(parent, engine, impl->instobj, &args,
sizeof(args), pobject);
}
int
_nouveau_instmem_fini(struct nouveau_object *object, bool suspend)
{
struct nouveau_instmem *imem = (void *)object;
struct nouveau_instobj *iobj;
int i, ret = 0;
if (suspend) {
mutex_lock(&imem->base.mutex);
list_for_each_entry(iobj, &imem->list, head) {
iobj->suspend = vmalloc(iobj->size);
if (!iobj->suspend) {
ret = -ENOMEM;
break;
}
for (i = 0; i < iobj->size; i += 4)
iobj->suspend[i / 4] = nv_ro32(iobj, i);
}
mutex_unlock(&imem->base.mutex);
if (ret)
return ret;
}
return nouveau_subdev_fini(&imem->base, suspend);
}
int
_nouveau_instmem_init(struct nouveau_object *object)
{
struct nouveau_instmem *imem = (void *)object;
struct nouveau_instobj *iobj;
int ret, i;
ret = nouveau_subdev_init(&imem->base);
if (ret)
return ret;
mutex_lock(&imem->base.mutex);
list_for_each_entry(iobj, &imem->list, head) {
if (iobj->suspend) {
for (i = 0; i < iobj->size; i += 4)
nv_wo32(iobj, i, iobj->suspend[i / 4]);
vfree(iobj->suspend);
iobj->suspend = NULL;
}
}
mutex_unlock(&imem->base.mutex);
return 0;
}
int
nouveau_instmem_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
int length, void **pobject)
{
struct nouveau_instmem *imem;
int ret;
ret = nouveau_subdev_create_(parent, engine, oclass, 0,
"INSTMEM", "instmem", length, pobject);
imem = *pobject;
if (ret)
return ret;
INIT_LIST_HEAD(&imem->list);
imem->alloc = nouveau_instmem_alloc;
return 0;
}
|
