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