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authorjhb <jhb@FreeBSD.org>2010-11-09 20:46:41 +0000
committerjhb <jhb@FreeBSD.org>2010-11-09 20:46:41 +0000
commitacd72eb169c94eb88945f1aa0961399de232932a (patch)
treee6810f6d97d2a82696451c2bdee2e7a02e28498e /sys/ia64/include
parentc016e5df4903f7338c86426075bdf44fd1f18282 (diff)
downloadFreeBSD-src-acd72eb169c94eb88945f1aa0961399de232932a.zip
FreeBSD-src-acd72eb169c94eb88945f1aa0961399de232932a.tar.gz
- Remove <machine/mutex.h>. Most of the headers were empty, and the
contents of the ones that were not empty were stale and unused. - Now that <machine/mutex.h> no longer exists, there is no need to allow it to override various helper macros in <sys/mutex.h>. - Rename various helper macros for low-level operations on mutexes to live in the _mtx_* or __mtx_* namespaces. While here, change the names to more closely match the real API functions they are backing. - Drop support for including <sys/mutex.h> in assembly source files. Suggested by: bde (1, 2)
Diffstat (limited to 'sys/ia64/include')
-rw-r--r--sys/ia64/include/mutex.h70
1 files changed, 0 insertions, 70 deletions
diff --git a/sys/ia64/include/mutex.h b/sys/ia64/include/mutex.h
deleted file mode 100644
index 96d8f3d..0000000
--- a/sys/ia64/include/mutex.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*-
- * Copyright (c) 1997 Berkeley Software Design, Inc. 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. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Berkeley Software Design Inc's name may not be used to endorse or
- * promote products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``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 BERKELEY SOFTWARE DESIGN INC 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.
- *
- * from BSDI $Id: mutex.h,v 2.7.2.35 2000/04/27 03:10:26 cp Exp $
- * $FreeBSD$
- */
-
-#ifndef _MACHINE_MUTEX_H_
-#define _MACHINE_MUTEX_H_
-
-#ifdef LOCORE
-
-/*
- * Simple assembly macros to get and release non-recursive spin locks
- */
-#define MTX_ENTER(lck, rPSR, rOLD, rNEW, rLCK) \
- mov rPSR=psr ; \
- mov rNEW=pcpup ; \
- addl rLCK=@ltoff(lck),gp ;; \
- ld8 rLCK=[rLCK] ;; \
- add rLCK=MTX_LOCK,rLCK ;; \
- rsm psr.i ; \
- mov ar.ccv=MTX_UNOWNED ; \
- add rNEW=PC_CURTHREAD,rNEW ;; \
- ld8 rNEW=[rNEW] ;; \
-1: cmpxchg8.acq rOLD=[rLCK],rNEW,ar.ccv ;; \
- cmp.eq p1,p0=MTX_UNOWNED,rOLD ;; \
-(p1) br.cond.spnt.few 1b ;; \
- addl rLCK=@ltoff(lck),gp ;; \
- ld8 rLCK=[rLCK] ;; \
- add rLCK=MTX_SAVEINTR,rLCK ;; \
- st4 [rLCK]=rPSR
-
-#define MTX_EXIT(lck, rTMP, rLCK) \
- mov rTMP=MTX_UNOWNED ; \
- addl rLCK=@ltoff(lck),gp;; \
- ld8 rLCK=[rLCK];; \
- add rLCK=MTX_LOCK,rLCK;; \
- st8.rel [rLCK]=rTMP,MTX_SAVEINTR-MTX_LOCK ;; \
- ld4 rTMP=[rLCK] ;; \
- mov psr.l=rTMP ;; \
- srlz.d
-
-#endif /* !LOCORE */
-
-#endif /* __MACHINE_MUTEX_H */
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