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
39struct nv04_disp_root {
40	struct nvkm_object object;
41	struct nvkm_disp *disp;
42};
43
44static int
45nv04_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
76static const struct nvkm_object_func
77nv04_disp_root = {
78	.mthd = nv04_disp_mthd,
79	.ntfy = nvkm_disp_ntfy,
80};
81
82static int
83nv04_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
97const struct nvkm_disp_oclass
98nv04_disp_root_oclass = {
99	.base.oclass = NV04_DISP,
100	.base.minver = -1,
101	.base.maxver = -1,
102	.ctor = nv04_disp_root_new,
103};
104