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Date: Thu, 16 Sep 2010 14:28:37 +0200
From: Borislav Petkov <borislav.petkov@amd.com>
To: Thomas Gleixner <tglx@linutronix.de>
CC: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
        "H. Peter Anvin" <hpa@zytor.com>, Nix <nix@esperi.org.uk>,
        Artur Skawina <art.08.09@gmail.com>,
        Damien Wyart <damien.wyart@free.fr>,
        John Drescher <drescherjm@gmail.com>,
        Venkatesh Pallipadi <venki@google.com>,
        Arjan van de Ven <arjan@linux.intel.com>,
        "Herrmann3, Andreas" <Andreas.Herrmann3@amd.com>,
        Suresh Siddha <suresh.b.siddha@intel.com>
Subject: Re: [PATCH RFC] x86: hpet: Avoid the readback penalty
Message-ID: <20100916122837.GA9097@aftab>
References: <tip-54ff7e595d763d894104d421b103a89f7becf47c@git.kernel.org>
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 <20100915144034.GC968@aftab>
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> > On Tue, 14 Sep 2010, tip-bot for Thomas Gleixner wrote:
> > > x86: hpet: Work around hardware stupidity
> > 
> > After my brain recovered from yesterdays exposure with the x86 timer
> > horror, I came up with a different solution for this problem, which
> > avoids the readback of the compare register completely. It works
> > nicely on my affected ATI system, but needs some exposure to the other
> > machines.
> 
> Will run in on a couple of SBx00 machines I got here.

FWIW, the patch doesn't break my SBx00 mini-farm here. Let me know if
you need more testing done, otherwise:

Tested-by: Borislav Petkov <borislav.petkov@amd.com>

-- 
Regards/Gruss,
Boris.

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