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3863c9bc BS |
1 | /* |
2 | * Copyright 2012 Red Hat Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Ben Skeggs | |
23 | */ | |
24 | ||
25 | #include <subdev/instmem.h> | |
26 | ||
27 | int | |
28 | nouveau_instobj_create_(struct nouveau_object *parent, | |
29 | struct nouveau_object *engine, | |
30 | struct nouveau_oclass *oclass, | |
31 | int length, void **pobject) | |
32 | { | |
33 | struct nouveau_instmem *imem = (void *)engine; | |
34 | struct nouveau_instobj *iobj; | |
35 | int ret; | |
36 | ||
37 | ret = nouveau_object_create_(parent, engine, oclass, NV_MEMOBJ_CLASS, | |
38 | length, pobject); | |
39 | iobj = *pobject; | |
40 | if (ret) | |
41 | return ret; | |
42 | ||
43 | list_add(&iobj->head, &imem->list); | |
44 | return 0; | |
45 | } | |
46 | ||
47 | void | |
48 | nouveau_instobj_destroy(struct nouveau_instobj *iobj) | |
49 | { | |
50 | if (iobj->head.prev) | |
51 | list_del(&iobj->head); | |
52 | return nouveau_object_destroy(&iobj->base); | |
53 | } | |
54 | ||
55 | void | |
56 | _nouveau_instobj_dtor(struct nouveau_object *object) | |
57 | { | |
58 | struct nouveau_instobj *iobj = (void *)object; | |
59 | return nouveau_instobj_destroy(iobj); | |
60 | } | |
61 | ||
62 | int | |
63 | nouveau_instmem_create_(struct nouveau_object *parent, | |
64 | struct nouveau_object *engine, | |
65 | struct nouveau_oclass *oclass, | |
66 | int length, void **pobject) | |
67 | { | |
68 | struct nouveau_instmem *imem; | |
69 | int ret; | |
70 | ||
71 | ret = nouveau_subdev_create_(parent, engine, oclass, 0, | |
72 | "INSTMEM", "instmem", length, pobject); | |
73 | imem = *pobject; | |
74 | if (ret) | |
75 | return ret; | |
76 | ||
77 | INIT_LIST_HEAD(&imem->list); | |
78 | return 0; | |
79 | } | |
80 | ||
81 | int | |
82 | nouveau_instmem_init(struct nouveau_instmem *imem) | |
83 | { | |
84 | struct nouveau_instobj *iobj; | |
85 | int ret, i; | |
86 | ||
87 | ret = nouveau_subdev_init(&imem->base); | |
88 | if (ret) | |
89 | return ret; | |
90 | ||
91 | list_for_each_entry(iobj, &imem->list, head) { | |
92 | if (iobj->suspend) { | |
93 | for (i = 0; i < iobj->size; i += 4) | |
94 | nv_wo32(iobj, i, iobj->suspend[i / 4]); | |
95 | vfree(iobj->suspend); | |
96 | iobj->suspend = NULL; | |
97 | } | |
98 | } | |
99 | ||
100 | return 0; | |
101 | } | |
102 | ||
103 | int | |
104 | nouveau_instmem_fini(struct nouveau_instmem *imem, bool suspend) | |
105 | { | |
106 | struct nouveau_instobj *iobj; | |
107 | int i; | |
108 | ||
109 | if (suspend) { | |
110 | list_for_each_entry(iobj, &imem->list, head) { | |
111 | iobj->suspend = vmalloc(iobj->size); | |
112 | if (iobj->suspend) { | |
113 | for (i = 0; i < iobj->size; i += 4) | |
114 | iobj->suspend[i / 4] = nv_ro32(iobj, i); | |
115 | } else | |
116 | return -ENOMEM; | |
117 | } | |
118 | } | |
119 | ||
120 | return nouveau_subdev_fini(&imem->base, suspend); | |
121 | } | |
122 | ||
123 | int | |
124 | _nouveau_instmem_init(struct nouveau_object *object) | |
125 | { | |
126 | struct nouveau_instmem *imem = (void *)object; | |
127 | return nouveau_instmem_init(imem); | |
128 | } | |
129 | ||
130 | int | |
131 | _nouveau_instmem_fini(struct nouveau_object *object, bool suspend) | |
132 | { | |
133 | struct nouveau_instmem *imem = (void *)object; | |
134 | return nouveau_instmem_fini(imem, suspend); | |
135 | } |