Date: Thu, 26 Apr 2012 13:56:38 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r234704 - stable/9/sys/powerpc/aim Message-ID: <201204261356.q3QDuc1b051609@svn.freebsd.org>
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Author: nwhitehorn Date: Thu Apr 26 13:56:38 2012 New Revision: 234704 URL: http://svn.freebsd.org/changeset/base/234704 Log: MFC r234517: Make sure all pending operations have completed on the existing thread before (potentially) migrating it to a different CPU. Modified: stable/9/sys/powerpc/aim/swtch32.S stable/9/sys/powerpc/aim/swtch64.S Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/powerpc/aim/swtch32.S ============================================================================== --- stable/9/sys/powerpc/aim/swtch32.S Thu Apr 26 13:55:15 2012 (r234703) +++ stable/9/sys/powerpc/aim/swtch32.S Thu Apr 26 13:56:38 2012 (r234704) @@ -113,6 +113,7 @@ ENTRY(cpu_switch) mr %r3,%r14 /* restore old thread ptr */ bl pmap_deactivate /* Deactivate the current pmap */ + sync /* Make sure all of that finished */ stw %r16,TD_LOCK(%r14) /* ULE: update old thread's lock */ cpu_switchin: Modified: stable/9/sys/powerpc/aim/swtch64.S ============================================================================== --- stable/9/sys/powerpc/aim/swtch64.S Thu Apr 26 13:55:15 2012 (r234703) +++ stable/9/sys/powerpc/aim/swtch64.S Thu Apr 26 13:56:38 2012 (r234704) @@ -139,6 +139,7 @@ ENTRY(cpu_switch) addi %r1,%r1,48 + sync /* Make sure all of that finished */ std %r16,TD_LOCK(%r14) /* ULE: update old thread's lock */ cpu_switchin:
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