1 /*
2 * Copyright 2015 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 <bskeggs@redhat.com>
23 */
24 #include <core/oproxy.h>
25
26 static int
nvkm_oproxy_mthd(struct nvkm_object * object,u32 mthd,void * data,u32 size)27 nvkm_oproxy_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
28 {
29 return nvkm_object_mthd(nvkm_oproxy(object)->object, mthd, data, size);
30 }
31
32 static int
nvkm_oproxy_ntfy(struct nvkm_object * object,u32 mthd,struct nvkm_event ** pevent)33 nvkm_oproxy_ntfy(struct nvkm_object *object, u32 mthd,
34 struct nvkm_event **pevent)
35 {
36 return nvkm_object_ntfy(nvkm_oproxy(object)->object, mthd, pevent);
37 }
38
39 static int
nvkm_oproxy_map(struct nvkm_object * object,void * argv,u32 argc,enum nvkm_object_map * type,u64 * addr,u64 * size)40 nvkm_oproxy_map(struct nvkm_object *object, void *argv, u32 argc,
41 enum nvkm_object_map *type, u64 *addr, u64 *size)
42 {
43 struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
44 return nvkm_object_map(oproxy->object, argv, argc, type, addr, size);
45 }
46
47 static int
nvkm_oproxy_unmap(struct nvkm_object * object)48 nvkm_oproxy_unmap(struct nvkm_object *object)
49 {
50 struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
51
52 if (unlikely(!oproxy->object))
53 return 0;
54
55 return nvkm_object_unmap(oproxy->object);
56 }
57
58 static int
nvkm_oproxy_bind(struct nvkm_object * object,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)59 nvkm_oproxy_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
60 int align, struct nvkm_gpuobj **pgpuobj)
61 {
62 return nvkm_object_bind(nvkm_oproxy(object)->object,
63 parent, align, pgpuobj);
64 }
65
66 static int
nvkm_oproxy_sclass(struct nvkm_object * object,int index,struct nvkm_oclass * oclass)67 nvkm_oproxy_sclass(struct nvkm_object *object, int index,
68 struct nvkm_oclass *oclass)
69 {
70 struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
71 oclass->parent = oproxy->object;
72 if (!oproxy->object->func->sclass)
73 return -ENODEV;
74 return oproxy->object->func->sclass(oproxy->object, index, oclass);
75 }
76
77 static int
nvkm_oproxy_uevent(struct nvkm_object * object,void * argv,u32 argc,struct nvkm_uevent * uevent)78 nvkm_oproxy_uevent(struct nvkm_object *object, void *argv, u32 argc,
79 struct nvkm_uevent *uevent)
80 {
81 struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
82
83 if (!oproxy->object->func->uevent)
84 return -ENOSYS;
85
86 return oproxy->object->func->uevent(oproxy->object, argv, argc, uevent);
87 }
88
89 static int
nvkm_oproxy_fini(struct nvkm_object * object,bool suspend)90 nvkm_oproxy_fini(struct nvkm_object *object, bool suspend)
91 {
92 struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
93 int ret;
94
95 if (oproxy->func->fini[0]) {
96 ret = oproxy->func->fini[0](oproxy, suspend);
97 if (ret && suspend)
98 return ret;
99 }
100
101 if (oproxy->object->func->fini) {
102 ret = oproxy->object->func->fini(oproxy->object, suspend);
103 if (ret && suspend)
104 return ret;
105 }
106
107 if (oproxy->func->fini[1]) {
108 ret = oproxy->func->fini[1](oproxy, suspend);
109 if (ret && suspend)
110 return ret;
111 }
112
113 return 0;
114 }
115
116 static int
nvkm_oproxy_init(struct nvkm_object * object)117 nvkm_oproxy_init(struct nvkm_object *object)
118 {
119 struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
120 int ret;
121
122 if (oproxy->func->init[0]) {
123 ret = oproxy->func->init[0](oproxy);
124 if (ret)
125 return ret;
126 }
127
128 if (oproxy->object->func->init) {
129 ret = oproxy->object->func->init(oproxy->object);
130 if (ret)
131 return ret;
132 }
133
134 if (oproxy->func->init[1]) {
135 ret = oproxy->func->init[1](oproxy);
136 if (ret)
137 return ret;
138 }
139
140 return 0;
141 }
142
143 static void *
nvkm_oproxy_dtor(struct nvkm_object * object)144 nvkm_oproxy_dtor(struct nvkm_object *object)
145 {
146 struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
147 if (oproxy->func->dtor[0])
148 oproxy->func->dtor[0](oproxy);
149 nvkm_object_del(&oproxy->object);
150 if (oproxy->func->dtor[1])
151 oproxy->func->dtor[1](oproxy);
152 return oproxy;
153 }
154
155 static const struct nvkm_object_func
156 nvkm_oproxy_func = {
157 .dtor = nvkm_oproxy_dtor,
158 .init = nvkm_oproxy_init,
159 .fini = nvkm_oproxy_fini,
160 .mthd = nvkm_oproxy_mthd,
161 .ntfy = nvkm_oproxy_ntfy,
162 .map = nvkm_oproxy_map,
163 .unmap = nvkm_oproxy_unmap,
164 .bind = nvkm_oproxy_bind,
165 .sclass = nvkm_oproxy_sclass,
166 .uevent = nvkm_oproxy_uevent,
167 };
168
169 void
nvkm_oproxy_ctor(const struct nvkm_oproxy_func * func,const struct nvkm_oclass * oclass,struct nvkm_oproxy * oproxy)170 nvkm_oproxy_ctor(const struct nvkm_oproxy_func *func,
171 const struct nvkm_oclass *oclass, struct nvkm_oproxy *oproxy)
172 {
173 nvkm_object_ctor(&nvkm_oproxy_func, oclass, &oproxy->base);
174 oproxy->func = func;
175 }
176
177 int
nvkm_oproxy_new_(const struct nvkm_oproxy_func * func,const struct nvkm_oclass * oclass,struct nvkm_oproxy ** poproxy)178 nvkm_oproxy_new_(const struct nvkm_oproxy_func *func,
179 const struct nvkm_oclass *oclass, struct nvkm_oproxy **poproxy)
180 {
181 if (!(*poproxy = kzalloc(sizeof(**poproxy), GFP_KERNEL)))
182 return -ENOMEM;
183 nvkm_oproxy_ctor(func, oclass, *poproxy);
184 return 0;
185 }
186