1 /*
2 * Copyright 2018 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 #include <nvif/user.h>
23 #include <nvif/device.h>
24
25 #include <nvif/class.h>
26
27 void
28 nvif_user_fini(struct nvif_device *device)
29 {
30 if (device->user.func) {
31 nvif_object_fini(&device->user.object);
32 device->user.func = NULL;
33 }
34 }
35
36 int
37 nvif_user_init(struct nvif_device *device)
38 {
39 struct {
40 s32 oclass;
41 int version;
42 const struct nvif_user_func *func;
43 } users[] = {
44 { VOLTA_USERMODE_A, -1, &nvif_userc361 },
45 {}
46 };
47 int cid, ret;
48
49 if (device->user.func)
50 return 0;
51
52 cid = nvif_mclass(&device->object, users);
53 if (cid < 0)
54 return cid;
55
56 ret = nvif_object_init(&device->object, 0, users[cid].oclass, NULL, 0,
57 &device->user.object);
58 if (ret)
59 return ret;
60
61 nvif_object_map(&device->user.object, NULL, 0);
62 device->user.func = users[cid].func;
63 return 0;
64 }