From: Damien Wyart <damien.wyart@free.fr>
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>,
John Drescher <drescherjm@gmail.com>,
Venkatesh Pallipadi <venki@google.com>,
Arjan van de Ven <arjan@linux.intel.com>,
Andreas Herrmann <andreas.herrmann3@amd.com>,
Borislav Petkov <borislav.petkov@amd.com>,
Suresh Siddha <suresh.b.siddha@intel.com>
Subject: Re: [PATCH RFC] x86: hpet: Avoid the readback penalty
Date: Sat, 18 Sep 2010 09:49:39 +0200 [thread overview]
Message-ID: <20100918074939.GA3275@brouette> (raw)
In-Reply-To: <alpine.LFD.2.00.1009151500060.2416@localhost6.localdomain6>
* Thomas Gleixner <tglx@linutronix.de> [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?
Thanks,
Damien
next prev parent reply other threads:[~2010-09-18 8:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <tip-54ff7e595d763d894104d421b103a89f7becf47c@git.kernel.org>
2010-09-14 23:36 ` [tip:x86/urgent] x86: hpet: Work around hardware stupidity Venkatesh Pallipadi
2010-09-15 13:11 ` [PATCH RFC] x86: hpet: Avoid the readback penalty Thomas Gleixner
2010-09-15 13:43 ` Anders Larsen
2010-09-15 13:54 ` John Drescher
[not found] ` <AANLkTikHfDUh3LdmyA5eMNACFPfi6pqGLFJiyzVm79X_@mail.gmail.com>
2010-09-16 4:45 ` Fwd: " John Drescher
2010-09-15 14:40 ` Borislav Petkov
2010-09-15 14:42 ` Thomas Gleixner
2010-09-16 12:28 ` Borislav Petkov
2010-09-16 20:04 ` Nix
2010-09-18 7:49 ` Damien Wyart [this message]
2010-09-18 9:41 ` Thomas Gleixner
2010-09-18 13:43 ` Nix
2010-09-18 10:13 ` [tip:x86/timers] x86: Hpet: Avoid the comparator " tip-bot for Thomas Gleixner
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