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
30 static int
nvkm_udisp_sclass(struct nvkm_object * object,int index,struct nvkm_oclass * sclass)31 nvkm_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
62 static void *
nvkm_udisp_dtor(struct nvkm_object * object)63 nvkm_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
74 static const struct nvkm_object_func
75 nvkm_udisp = {
76 .dtor = nvkm_udisp_dtor,
77 .sclass = nvkm_udisp_sclass,
78 };
79
80 int
nvkm_udisp_new(const struct nvkm_oclass * oclass,void * argv,u32 argc,struct nvkm_object ** pobject)81 nvkm_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