xref: /openbmc/linux/drivers/gpu/drm/nouveau/nvif/outp.c (revision 462cd772)
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/outp.h>
23 #include <nvif/disp.h>
24 #include <nvif/printf.h>
25 
26 #include <nvif/class.h>
27 #include <nvif/if0012.h>
28 
29 int
30 nvif_outp_load_detect(struct nvif_outp *outp, u32 loadval)
31 {
32 	struct nvif_outp_load_detect_v0 args;
33 	int ret;
34 
35 	args.version = 0;
36 	args.data = loadval;
37 
38 	ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_LOAD_DETECT, &args, sizeof(args));
39 	NVIF_ERRON(ret, &outp->object, "[LOAD_DETECT data:%08x] load:%02x", args.data, args.load);
40 	return ret < 0 ? ret : args.load;
41 }
42 
43 void
44 nvif_outp_dtor(struct nvif_outp *outp)
45 {
46 	nvif_object_dtor(&outp->object);
47 }
48 
49 int
50 nvif_outp_ctor(struct nvif_disp *disp, const char *name, int id, struct nvif_outp *outp)
51 {
52 	struct nvif_outp_v0 args;
53 	int ret;
54 
55 	args.version = 0;
56 	args.id = id;
57 
58 	ret = nvif_object_ctor(&disp->object, name ?: "nvifOutp", id, NVIF_CLASS_OUTP,
59 			       &args, sizeof(args), &outp->object);
60 	NVIF_ERRON(ret, &disp->object, "[NEW outp id:%d]", id);
61 	return ret;
62 }
63