2 * Copyright 2013-2014 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 #include <core/event.h>
23 #include <core/notify.h>
26 nvkm_event_put(struct nvkm_event
*event
, u32 types
, int index
)
28 assert_spin_locked(&event
->refs_lock
);
30 int type
= __ffs(types
); types
&= ~(1 << type
);
31 if (--event
->refs
[index
* event
->types_nr
+ type
] == 0) {
32 if (event
->func
->fini
)
33 event
->func
->fini(event
, 1 << type
, index
);
39 nvkm_event_get(struct nvkm_event
*event
, u32 types
, int index
)
41 assert_spin_locked(&event
->refs_lock
);
43 int type
= __ffs(types
); types
&= ~(1 << type
);
44 if (++event
->refs
[index
* event
->types_nr
+ type
] == 1) {
45 if (event
->func
->init
)
46 event
->func
->init(event
, 1 << type
, index
);
52 nvkm_event_send(struct nvkm_event
*event
, u32 types
, int index
,
55 struct nvkm_notify
*notify
;
58 if (!event
->refs
|| WARN_ON(index
>= event
->index_nr
))
61 spin_lock_irqsave(&event
->list_lock
, flags
);
62 list_for_each_entry(notify
, &event
->list
, head
) {
63 if (notify
->index
== index
&& (notify
->types
& types
)) {
64 if (event
->func
->send
) {
65 event
->func
->send(data
, size
, notify
);
68 nvkm_notify_send(notify
, data
, size
);
71 spin_unlock_irqrestore(&event
->list_lock
, flags
);
75 nvkm_event_fini(struct nvkm_event
*event
)
84 nvkm_event_init(const struct nvkm_event_func
*func
, int types_nr
, int index_nr
,
85 struct nvkm_event
*event
)
87 event
->refs
= kzalloc(sizeof(*event
->refs
) * index_nr
* types_nr
,
93 event
->types_nr
= types_nr
;
94 event
->index_nr
= index_nr
;
95 spin_lock_init(&event
->refs_lock
);
96 spin_lock_init(&event
->list_lock
);
97 INIT_LIST_HEAD(&event
->list
);