Re: [PATCH RFC] x86: hpet: Avoid the readback penalty

From: Thomas Gleixner
Date: Sat Sep 18 2010 - 05:42:31 EST


On Sat, 18 Sep 2010, Damien Wyart wrote:

> * Thomas Gleixner <tglx@xxxxxxxxxxxxx> [2010-09-15 15:11]:
> > > 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.
>
> Comments for this different solution seemed fine, but it seems only the
> first one was commited into mainline and then stable. Is this intended?

Yes. I wanted to have confirmation for the second solution (also from
the HW folks). I'm queueing it for .37

Thanks,

tglx
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