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 "priv.h"
23#include "conn.h"
24#include "head.h"
25#include "outp.h"
26
27#include <nvif/class.h>
28#include <nvif/if0010.h>
29
30static int
31nvkm_udisp_sclass(struct nvkm_object *object, int index, struct nvkm_oclass *sclass)
32{
33	struct nvkm_disp *disp = nvkm_udisp(object);
34
35	if (index-- == 0) {
36		sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_CONN };
37		sclass->ctor = nvkm_uconn_new;
38		return 0;
39	}
40
41	if (index-- == 0) {
42		sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_OUTP };
43		sclass->ctor = nvkm_uoutp_new;
44		return 0;
45	}
46
47	if (index-- == 0) {
48		sclass->base = (struct nvkm_sclass) { 0, 0, NVIF_CLASS_HEAD };
49		sclass->ctor = nvkm_uhead_new;
50		return 0;
51	}
52
53	if (disp->func->user[index].ctor) {
54		sclass->base = disp->func->user[index].base;
55		sclass->ctor = disp->func->user[index].ctor;
56		return 0;
57	}
58
59	return -EINVAL;
60}
61
62static void *
63nvkm_udisp_dtor(struct nvkm_object *object)
64{
65	struct nvkm_disp *disp = nvkm_udisp(object);
66
67	spin_lock(&disp->client.lock);
68	if (object == &disp->client.object)
69		disp->client.object.func = NULL;
70	spin_unlock(&disp->client.lock);
71	return NULL;
72}
73
74static const struct nvkm_object_func
75nvkm_udisp = {
76	.dtor = nvkm_udisp_dtor,
77	.sclass = nvkm_udisp_sclass,
78};
79
80int
81nvkm_udisp_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)
82{
83	struct nvkm_disp *disp = nvkm_disp(oclass->engine);
84	struct nvkm_conn *conn;
85	struct nvkm_outp *outp;
86	struct nvkm_head *head;
87	union nvif_disp_args *args = argv;
88
89	if (argc != sizeof(args->v0) || args->v0.version != 0)
90		return -ENOSYS;
91
92	spin_lock(&disp->client.lock);
93	if (disp->client.object.func) {
94		spin_unlock(&disp->client.lock);
95		return -EBUSY;
96	}
97	nvkm_object_ctor(&nvkm_udisp, oclass, &disp->client.object);
98	*pobject = &disp->client.object;
99	spin_unlock(&disp->client.lock);
100
101	args->v0.conn_mask = 0;
102	list_for_each_entry(conn, &disp->conns, head)
103		args->v0.conn_mask |= BIT(conn->index);
104
105	args->v0.outp_mask = 0;
106	list_for_each_entry(outp, &disp->outps, head)
107		args->v0.outp_mask |= BIT(outp->index);
108
109	args->v0.head_mask = 0;
110	list_for_each_entry(head, &disp->heads, head)
111		args->v0.head_mask |= BIT(head->id);
112
113	return 0;
114}
115