2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2021 Microsoft Corp.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/types.h>
34 #include <sys/mutex.h>
35 #include <sys/systm.h>
37 #include "gdma_util.h"
41 init_completion(struct completion *c)
43 memset(c, 0, sizeof(*c));
44 mtx_init(&c->lock, "gdma_completion", NULL, MTX_DEF);
49 free_completion(struct completion *c)
51 mtx_destroy(&c->lock);
55 complete(struct completion *c)
64 wait_for_completion(struct completion *c)
68 mtx_sleep(c, &c->lock, 0, "gdma_wfc", 0);
74 * Return: 0 if completed, a non-zero value if timed out.
77 wait_for_completion_timeout(struct completion *c, int timeout)
84 mtx_sleep(c, &c->lock, 0, "gdma_wfc", timeout);