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
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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(array3_size(index_nr, types_nr,
88 sizeof(*event->refs)),
94 event->types_nr = types_nr;
95 event->index_nr = index_nr;
96 spin_lock_init(&event->refs_lock);
97 spin_lock_init(&event->list_lock);
98 INIT_LIST_HEAD(&event->list);