Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753326Ab0HRSqB (ORCPT ); Wed, 18 Aug 2010 14:46:01 -0400 Received: from s15228384.onlinehome-server.info ([87.106.30.177]:53244 "EHLO mail.x86-64.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751361Ab0HRSqA (ORCPT ); Wed, 18 Aug 2010 14:46:00 -0400 Date: Wed, 18 Aug 2010 20:45:34 +0200 From: Borislav Petkov To: Alok Kataria Cc: "H. Peter Anvin" , Ingo Molnar , Thomas Gleixner , Borislav Petkov , the arch/x86 maintainers , Greg KH , "greg@kroah.com" , "ksrinivasan@novell.com" , LKML Subject: Re: [PATCH] x86, tsc: Limit CPU frequency calibration on AMD Message-ID: <20100818184534.GA12842@aftab> References: <4C69D02F.6090601@zytor.com> <1282024311.20786.2.camel@ank32.eng.vmware.com> <4C6A2C98.4060605@zytor.com> <20100817070520.GD32714@liondog.tnic> <1282063532.4388.8.camel@ank32.eng.vmware.com> <20100817185634.GA10597@liondog.tnic> <20100818161639.GF9880@aftab> <4C6C08EC.2080404@zytor.com> <20100818173401.GG9880@aftab> <1282153895.15158.45.camel@ank32.eng.vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1282153895.15158.45.camel@ank32.eng.vmware.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1355 Lines: 39 From: Alok Kataria Date: Wed, Aug 18, 2010 at 01:51:35PM -0400 Hi, > Thanks for doing this. I already had a patch ready doing just this, sorry if I have caused any conflicts with your patch. > though this change looks much nicer since you have moved all the code > to the amd file. Guess I just have to wait for you to do the noop > stuff if you are doing that. Once the patch is completed I can then > just initialize this func ptr to the noop routine when on VMware's > platform. yeah, actually I was on the verge of completely removing that calibrate_cpu code since maybe 99% of the systems out there should have a TSC counting with the P0 rate so the issue becomes moot and no need for fixing. But according to Murphy, there'll be this one system which needs it and thus we have to keep it, unfortunately. Anyway, I'll keep you posted. Thanks. -- Regards/Gruss, Boris. Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/