Date: Fri, 11 Nov 2005 02:06:54 +0000 (UTC) From: Peter Grehan <grehan@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/powerpc/powerpc pmap.c Message-ID: <200511110206.jAB26sZb050191@repoman.freebsd.org>
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grehan 2005-11-11 02:06:54 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_6)
sys/powerpc/powerpc pmap.c
Log:
MFC r1.102
> Finally (!?) get to the bottom of the mysterious G3 boot-time panics.
> After a number of tests using nop's to change the alignment, it was
> confirmed that the mtibat instructions should be cache-aligned.
> FreeScale app note AN2540 indicates that the isync before and after
> the mtdbat is the right thing to do, but sync/isync isn't required
> before the mtibat so it has been removed.
>
> Fix by using a ".balign 32" to pull the code in question to the correct
> alignment.
Revision Changes Path
1.99.2.2 +1 -1 src/sys/powerpc/powerpc/pmap.c
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