From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755424Ab0IRJm1 (ORCPT ); Sat, 18 Sep 2010 05:42:27 -0400 Received: from www.tglx.de ([62.245.132.106]:54115 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755376Ab0IRJmZ (ORCPT ); Sat, 18 Sep 2010 05:42:25 -0400 Date: Sat, 18 Sep 2010 11:41:56 +0200 (CEST) From: Thomas Gleixner To: Damien Wyart cc: LKML , Ingo Molnar , "H. Peter Anvin" , Nix , Artur Skawina , John Drescher , Venkatesh Pallipadi , Arjan van de Ven , Andreas Herrmann , Borislav Petkov , Suresh Siddha Subject: Re: [PATCH RFC] x86: hpet: Avoid the readback penalty In-Reply-To: <20100918074939.GA3275@brouette> Message-ID: References: <20100918074939.GA3275@brouette> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 18 Sep 2010, Damien Wyart wrote: > * Thomas Gleixner [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