diff options
Diffstat (limited to 'sys/ia64/include/mutex.h')
-rw-r--r-- | sys/ia64/include/mutex.h | 70 |
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 96d8f3d48a82..000000000000 --- 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 */ |