freedreno_fence.h revision af69d88d 
1/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3/*
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 *    Rob Clark <robclark@freedesktop.org>
27 */
28
29#ifndef FREEDRENO_FENCE_H_
30#define FREEDRENO_FENCE_H_
31
32#include "util/u_inlines.h"
33#include "util/u_double_list.h"
34
35
36struct fd_fence {
37	int ref;
38};
39
40boolean fd_fence_wait(struct fd_fence *fence);
41boolean fd_fence_signalled(struct fd_fence *fence);
42void fd_fence_del(struct fd_fence *fence);
43
44static INLINE void
45fd_fence_ref(struct fd_fence *fence, struct fd_fence **ref)
46{
47	if (fence)
48		++fence->ref;
49
50	if (*ref) {
51		if (--(*ref)->ref == 0)
52			fd_fence_del(*ref);
53	}
54
55	*ref = fence;
56}
57
58static INLINE struct fd_fence *
59fd_fence(struct pipe_fence_handle *fence)
60{
61	return (struct fd_fence *)fence;
62}
63
64
65#endif /* FREEDRENO_FENCE_H_ */
66