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
29static int
30nvkm_nvsw_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent)
31{
32	union nv04_nvsw_event_args *args = argv;
33
34	if (!uevent)
35		return 0;
36	if (argc != sizeof(args->vn))
37		return -ENOSYS;
38
39	return nvkm_uevent_add(uevent, &nvkm_nvsw(object)->chan->event, 0,
40			       NVKM_SW_CHAN_EVENT_PAGE_FLIP, NULL);
41}
42
43static int
44nvkm_nvsw_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
45{
46	struct nvkm_nvsw *nvsw = nvkm_nvsw(object);
47
48	if (nvsw->func->mthd)
49		return nvsw->func->mthd(nvsw, mthd, data, size);
50
51	return -ENODEV;
52}
53
54static const struct nvkm_object_func
55nvkm_nvsw_ = {
56	.mthd = nvkm_nvsw_mthd,
57	.uevent = nvkm_nvsw_uevent,
58};
59
60int
61nvkm_nvsw_new_(const struct nvkm_nvsw_func *func, struct nvkm_sw_chan *chan,
62	       const struct nvkm_oclass *oclass, void *data, u32 size,
63	       struct nvkm_object **pobject)
64{
65	struct nvkm_nvsw *nvsw;
66
67	if (!(nvsw = kzalloc(sizeof(*nvsw), GFP_KERNEL)))
68		return -ENOMEM;
69	*pobject = &nvsw->object;
70
71	nvkm_object_ctor(&nvkm_nvsw_, oclass, &nvsw->object);
72	nvsw->func = func;
73	nvsw->chan = chan;
74	return 0;
75}
76
77static const struct nvkm_nvsw_func
78nvkm_nvsw = {
79};
80
81int
82nvkm_nvsw_new(struct nvkm_sw_chan *chan, const struct nvkm_oclass *oclass,
83	      void *data, u32 size, struct nvkm_object **pobject)
84{
85	return nvkm_nvsw_new_(&nvkm_nvsw, chan, oclass, data, size, pobject);
86}
87