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 "chan.h"
25 
26 #include <core/notify.h>
27 
28 #include <nvif/event.h>
29 #include <nvif/unpack.h>
30 
31 static int
32 nvkm_sw_chan_event_ctor(struct nvkm_object *object, void *data, u32 size,
33 			struct nvkm_notify *notify)
34 {
35 	union {
36 		struct nvif_notify_uevent_req none;
37 	} *req = data;
38 	int ret;
39 
40 	if (nvif_unvers(req->none)) {
41 		notify->size  = sizeof(struct nvif_notify_uevent_rep);
42 		notify->types = 1;
43 		notify->index = 0;
44 	}
45 
46 	return ret;
47 }
48 
49 static const struct nvkm_event_func
50 nvkm_sw_chan_event = {
51 	.ctor = nvkm_sw_chan_event_ctor,
52 };
53 
54 void
55 nvkm_sw_chan_dtor(struct nvkm_object *base)
56 {
57 	struct nvkm_sw_chan *chan = (void *)base;
58 	nvkm_event_fini(&chan->event);
59 	nvkm_engctx_destroy(&chan->base);
60 }
61 
62 int
63 nvkm_sw_chan_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
64 		  struct nvkm_oclass *oclass, int length, void **pobject)
65 {
66 	struct nvkm_sw_chan *chan;
67 	int ret;
68 
69 	ret = nvkm_engctx_create_(parent, engine, oclass, parent,
70 				  0, 0, 0, length, pobject);
71 	chan = *pobject;
72 	if (ret)
73 		return ret;
74 
75 	return nvkm_event_init(&nvkm_sw_chan_event, 1, 1, &chan->event);
76 }
77