Date: Thu, 24 May 2012 22:14:39 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r235943 - head/sys/powerpc/include Message-ID: <201205242214.q4OMEdY2063522@svn.freebsd.org>
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Author: nwhitehorn Date: Thu May 24 22:14:39 2012 New Revision: 235943 URL: http://svn.freebsd.org/changeset/base/235943 Log: Atomic operation acquire barriers also need to be isync on 64-bit systems. Modified: head/sys/powerpc/include/atomic.h Modified: head/sys/powerpc/include/atomic.h ============================================================================== --- head/sys/powerpc/include/atomic.h Thu May 24 22:06:00 2012 (r235942) +++ head/sys/powerpc/include/atomic.h Thu May 24 22:14:39 2012 (r235943) @@ -52,7 +52,7 @@ #define rmb() __asm __volatile("lwsync" : : : "memory") #define wmb() __asm __volatile("lwsync" : : : "memory") #define __ATOMIC_REL() __asm __volatile("lwsync" : : : "memory") -#define __ATOMIC_ACQ() __asm __volatile("lwsync" : : : "memory") +#define __ATOMIC_ACQ() __asm __volatile("isync" : : : "memory") #else #define mb() __asm __volatile("sync" : : : "memory") #define rmb() __asm __volatile("sync" : : : "memory")
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