xref: /openbmc/linux/drivers/gpu/drm/nouveau/nvif/head.c (revision a2b7eadf)
1 /*
2  * Copyright 2021 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/head.h>
23 #include <nvif/disp.h>
24 #include <nvif/printf.h>
25 
26 #include <nvif/class.h>
27 #include <nvif/if0013.h>
28 
29 void
30 nvif_head_dtor(struct nvif_head *head)
31 {
32 	nvif_object_dtor(&head->object);
33 }
34 
35 int
36 nvif_head_ctor(struct nvif_disp *disp, const char *name, int id, struct nvif_head *head)
37 {
38 	struct nvif_head_v0 args;
39 	int ret;
40 
41 	args.version = 0;
42 	args.id = id;
43 
44 	ret = nvif_object_ctor(&disp->object, name ? name : "nvifHead", id, NVIF_CLASS_HEAD,
45 			       &args, sizeof(args), &head->object);
46 	NVIF_ERRON(ret, &disp->object, "[NEW head id:%d]", args.id);
47 	return ret;
48 }
49