1 /* $NetBSD: nouveau_nvkm_engine_sw_nvsw.c,v 1.3 2021/12/18 23:45:37 riastradh Exp $ */
2
3 /*
4 * Copyright 2015 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_sw_nvsw.c,v 1.3 2021/12/18 23:45:37 riastradh Exp $");
28
29 #include "nvsw.h"
30 #include "chan.h"
31
32 #include <nvif/if0004.h>
33
34 static int
nvkm_nvsw_mthd_(struct nvkm_object * object,u32 mthd,void * data,u32 size)35 nvkm_nvsw_mthd_(struct nvkm_object *object, u32 mthd, void *data, u32 size)
36 {
37 struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
38 if (nvsw->func->mthd)
39 return nvsw->func->mthd(nvsw, mthd, data, size);
40 return -ENODEV;
41 }
42
43 static int
nvkm_nvsw_ntfy_(struct nvkm_object * object,u32 mthd,struct nvkm_event ** pevent)44 nvkm_nvsw_ntfy_(struct nvkm_object *object, u32 mthd,
45 struct nvkm_event **pevent)
46 {
47 struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
48 switch (mthd) {
49 case NV04_NVSW_NTFY_UEVENT:
50 *pevent = &nvsw->chan->event;
51 return 0;
52 default:
53 break;
54 }
55 return -EINVAL;
56 }
57
58 static const struct nvkm_object_func
59 nvkm_nvsw_ = {
60 .mthd = nvkm_nvsw_mthd_,
61 .ntfy = nvkm_nvsw_ntfy_,
62 };
63
64 int
nvkm_nvsw_new_(const struct nvkm_nvsw_func * func,struct nvkm_sw_chan * chan,const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)65 nvkm_nvsw_new_(const struct nvkm_nvsw_func *func, struct nvkm_sw_chan *chan,
66 const struct nvkm_oclass *oclass, void *data, u32 size,
67 struct nvkm_object **pobject)
68 {
69 struct nvkm_nvsw *nvsw;
70
71 if (!(nvsw = kzalloc(sizeof(*nvsw), GFP_KERNEL)))
72 return -ENOMEM;
73 *pobject = &nvsw->object;
74
75 nvkm_object_ctor(&nvkm_nvsw_, oclass, &nvsw->object);
76 nvsw->func = func;
77 nvsw->chan = chan;
78 return 0;
79 }
80
81 static const struct nvkm_nvsw_func
82 nvkm_nvsw = {
83 };
84
85 int
nvkm_nvsw_new(struct nvkm_sw_chan * chan,const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)86 nvkm_nvsw_new(struct nvkm_sw_chan *chan, const struct nvkm_oclass *oclass,
87 void *data, u32 size, struct nvkm_object **pobject)
88 {
89 return nvkm_nvsw_new_(&nvkm_nvsw, chan, oclass, data, size, pobject);
90 }
91