1 /*
2 * Copyright 2015 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 * Authors: Ben Skeggs <bskeggs@redhat.com>
23 */
24 #include "nvsw.h"
25 #include "chan.h"
26
27 #include <nvif/if0004.h>
28
29 static int
nvkm_nvsw_mthd_(struct nvkm_object * object,u32 mthd,void * data,u32 size)30 nvkm_nvsw_mthd_(struct nvkm_object *object, u32 mthd, void *data, u32 size)
31 {
32 struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
33 if (nvsw->func->mthd)
34 return nvsw->func->mthd(nvsw, mthd, data, size);
35 return -ENODEV;
36 }
37
38 static int
nvkm_nvsw_ntfy_(struct nvkm_object * object,u32 mthd,struct nvkm_event ** pevent)39 nvkm_nvsw_ntfy_(struct nvkm_object *object, u32 mthd,
40 struct nvkm_event **pevent)
41 {
42 struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
43 switch (mthd) {
44 case NV04_NVSW_NTFY_UEVENT:
45 *pevent = &nvsw->chan->event;
46 return 0;
47 default:
48 break;
49 }
50 return -EINVAL;
51 }
52
53 static const struct nvkm_object_func
54 nvkm_nvsw_ = {
55 .mthd = nvkm_nvsw_mthd_,
56 .ntfy = nvkm_nvsw_ntfy_,
57 };
58
59 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)60 nvkm_nvsw_new_(const struct nvkm_nvsw_func *func, struct nvkm_sw_chan *chan,
61 const struct nvkm_oclass *oclass, void *data, u32 size,
62 struct nvkm_object **pobject)
63 {
64 struct nvkm_nvsw *nvsw;
65
66 if (!(nvsw = kzalloc(sizeof(*nvsw), GFP_KERNEL)))
67 return -ENOMEM;
68 *pobject = &nvsw->object;
69
70 nvkm_object_ctor(&nvkm_nvsw_, oclass, &nvsw->object);
71 nvsw->func = func;
72 nvsw->chan = chan;
73 return 0;
74 }
75
76 static const struct nvkm_nvsw_func
77 nvkm_nvsw = {
78 };
79
80 int
nvkm_nvsw_new(struct nvkm_sw_chan * chan,const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)81 nvkm_nvsw_new(struct nvkm_sw_chan *chan, const struct nvkm_oclass *oclass,
82 void *data, u32 size, struct nvkm_object **pobject)
83 {
84 return nvkm_nvsw_new_(&nvkm_nvsw, chan, oclass, data, size, pobject);
85 }
86