1 /* $NetBSD: nouveau_nvkm_engine_disp_ior.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $ */
2
3 /*
4 * Copyright 2017 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 <bskeggs@redhat.com>
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_ior.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
28
29 #include "ior.h"
30
31 static const char *
32 nvkm_ior_name[] = {
33 [DAC] = "DAC",
34 [SOR] = "SOR",
35 [PIOR] = "PIOR",
36 };
37
38 struct nvkm_ior *
nvkm_ior_find(struct nvkm_disp * disp,enum nvkm_ior_type type,int id)39 nvkm_ior_find(struct nvkm_disp *disp, enum nvkm_ior_type type, int id)
40 {
41 struct nvkm_ior *ior;
42 list_for_each_entry(ior, &disp->ior, head) {
43 if (ior->type == type && (id < 0 || ior->id == id))
44 return ior;
45 }
46 return NULL;
47 }
48
49 void
nvkm_ior_del(struct nvkm_ior ** pior)50 nvkm_ior_del(struct nvkm_ior **pior)
51 {
52 struct nvkm_ior *ior = *pior;
53 if (ior) {
54 IOR_DBG(ior, "dtor");
55 list_del(&ior->head);
56 kfree(*pior);
57 *pior = NULL;
58 }
59 }
60
61 int
nvkm_ior_new_(const struct nvkm_ior_func * func,struct nvkm_disp * disp,enum nvkm_ior_type type,int id)62 nvkm_ior_new_(const struct nvkm_ior_func *func, struct nvkm_disp *disp,
63 enum nvkm_ior_type type, int id)
64 {
65 struct nvkm_ior *ior;
66 if (!(ior = kzalloc(sizeof(*ior), GFP_KERNEL)))
67 return -ENOMEM;
68 ior->func = func;
69 ior->disp = disp;
70 ior->type = type;
71 ior->id = id;
72 snprintf(ior->name, sizeof(ior->name), "%s-%d",
73 nvkm_ior_name[ior->type], ior->id);
74 list_add_tail(&ior->head, &disp->ior);
75 IOR_DBG(ior, "ctor");
76 return 0;
77 }
78