From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422858AbXBANKt (ORCPT ); Thu, 1 Feb 2007 08:10:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422857AbXBANKt (ORCPT ); Thu, 1 Feb 2007 08:10:49 -0500 Received: from styx.suse.cz ([82.119.242.94]:58114 "EHLO mail.suse.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1422858AbXBANKs (ORCPT ); Thu, 1 Feb 2007 08:10:48 -0500 Date: Thu, 1 Feb 2007 14:13:57 +0100 From: Jiri Bohac To: Andi Kleen Cc: jbohac@suse.cz, linux-kernel@vger.kernel.org, Vojtech Pavlik , ssouhlal@freebsd.org, arjan@infradead.org, tglx@linutronix.de, johnstul@us.ibm.com, zippel@linux-m68k.org, andrea@suse.de Subject: Re: [patch 2/9] Remove the support for the VXTIME_PMTMR timer mode Message-ID: <20070201131353.GL21755@dwarf.suse.cz> References: <20070201095952.589234000@jet.suse.cz> <20070201103753.508377000@jet.suse.cz> <200702011213.32278.ak@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200702011213.32278.ak@suse.de> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 01, 2007 at 12:13:31PM +0100, Andi Kleen wrote: > On Thursday 01 February 2007 10:59, jbohac@suse.cz wrote: > > VXTIME_PMTMR will be replaced by a more generic "Master Timer" > > This means we have no fallback if something goes wrong with the Master timer? > > A little risky. No, either HPET or PM Timer will become the Master Timer (elected on boot). Master timer is just an abstraction of these, so the rest of the timekeeping code needn't care which hardware timer is being used. That's why the VXTIME_PMTMR mode is not needed. -- Jiri Bohac SUSE Labs, SUSE CZ