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
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
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
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
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