1 /* $NetBSD: nouveau_nvif_user.c,v 1.2 2021/12/18 23:45:33 riastradh Exp $ */
2
3 /*
4 * Copyright 2018 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24 #include <sys/cdefs.h>
25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvif_user.c,v 1.2 2021/12/18 23:45:33 riastradh Exp $");
26
27 #include <nvif/user.h>
28 #include <nvif/device.h>
29
30 #include <nvif/class.h>
31
32 void
nvif_user_fini(struct nvif_device * device)33 nvif_user_fini(struct nvif_device *device)
34 {
35 if (device->user.func) {
36 nvif_object_fini(&device->user.object);
37 device->user.func = NULL;
38 }
39 }
40
41 int
nvif_user_init(struct nvif_device * device)42 nvif_user_init(struct nvif_device *device)
43 {
44 struct {
45 s32 oclass;
46 int version;
47 const struct nvif_user_func *func;
48 } users[] = {
49 { VOLTA_USERMODE_A, -1, &nvif_userc361 },
50 {}
51 };
52 int cid, ret;
53
54 if (device->user.func)
55 return 0;
56
57 cid = nvif_mclass(&device->object, users);
58 if (cid < 0)
59 return cid;
60
61 ret = nvif_object_init(&device->object, 0, users[cid].oclass, NULL, 0,
62 &device->user.object);
63 if (ret)
64 return ret;
65
66 nvif_object_map(&device->user.object, NULL, 0);
67 device->user.func = users[cid].func;
68 return 0;
69 }
70