1 /* $NetBSD: nouveau_nvkm_engine_disp_rootnv04.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 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 * Authors: Ben Skeggs
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_rootnv04.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
28
29 #define nv04_disp_root(p) container_of((p), struct nv04_disp_root, object)
30 #include "priv.h"
31 #include "head.h"
32
33 #include <core/client.h>
34
35 #include <nvif/class.h>
36 #include <nvif/cl0046.h>
37 #include <nvif/unpack.h>
38
39 struct nv04_disp_root {
40 struct nvkm_object object;
41 struct nvkm_disp *disp;
42 };
43
44 static int
nv04_disp_mthd(struct nvkm_object * object,u32 mthd,void * data,u32 size)45 nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
46 {
47 struct nv04_disp_root *root = nv04_disp_root(object);
48 union {
49 struct nv04_disp_mthd_v0 v0;
50 } *args = data;
51 struct nvkm_head *head;
52 int id, ret = -ENOSYS;
53
54 nvif_ioctl(object, "disp mthd size %d\n", size);
55 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
56 nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
57 args->v0.version, args->v0.method, args->v0.head);
58 mthd = args->v0.method;
59 id = args->v0.head;
60 } else
61 return ret;
62
63 if (!(head = nvkm_head_find(root->disp, id)))
64 return -ENXIO;
65
66 switch (mthd) {
67 case NV04_DISP_SCANOUTPOS:
68 return nvkm_head_mthd_scanoutpos(object, head, data, size);
69 default:
70 break;
71 }
72
73 return -EINVAL;
74 }
75
76 static const struct nvkm_object_func
77 nv04_disp_root = {
78 .mthd = nv04_disp_mthd,
79 .ntfy = nvkm_disp_ntfy,
80 };
81
82 static int
nv04_disp_root_new(struct nvkm_disp * disp,const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)83 nv04_disp_root_new(struct nvkm_disp *disp, const struct nvkm_oclass *oclass,
84 void *data, u32 size, struct nvkm_object **pobject)
85 {
86 struct nv04_disp_root *root;
87
88 if (!(root = kzalloc(sizeof(*root), GFP_KERNEL)))
89 return -ENOMEM;
90 root->disp = disp;
91 *pobject = &root->object;
92
93 nvkm_object_ctor(&nv04_disp_root, oclass, &root->object);
94 return 0;
95 }
96
97 const struct nvkm_disp_oclass
98 nv04_disp_root_oclass = {
99 .base.oclass = NV04_DISP,
100 .base.minver = -1,
101 .base.maxver = -1,
102 .ctor = nv04_disp_root_new,
103 };
104