diff options
Diffstat (limited to 'sys/arch/ia64/include/mutex.h')
| -rw-r--r-- | sys/arch/ia64/include/mutex.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/sys/arch/ia64/include/mutex.h b/sys/arch/ia64/include/mutex.h new file mode 100644 index 00000000000..f035892c210 --- /dev/null +++ b/sys/arch/ia64/include/mutex.h @@ -0,0 +1,50 @@ +/* $OpenBSD: mutex.h,v 1.1 2011/07/04 23:29:08 pirofti Exp $ */ + +/* + * Copyright (c) 2004 Artur Grabowski <art@openbsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _IA64_MUTEX_H_ +#define _IA64_MUTEX_H_ + +struct mutex { + int mtx_wantipl; + int mtx_oldipl; + __volatile void *mtx_owner; +}; + +#define MUTEX_INITIALIZER(ipl) { (ipl), 0, NULL } + +#define MUTEX_ASSERT_LOCKED(mtx) do { \ + if ((mtx)->mtx_owner != curcpu()) \ + panic("mutex %p not held in %s", (mtx), __func__); \ +} while (0) + +#define MUTEX_ASSERT_UNLOCKED(mtx) do { \ + if ((mtx)->mtx_owner == curcpu()) \ + panic("mutex %p held in %s", (mtx), __func__); \ +} while (0) + +#define MUTEX_OLDIPL(mtx) (mtx)->mtx_oldipl + +#endif |