Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761147AbXESDe4 (ORCPT ); Fri, 18 May 2007 23:34:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755237AbXESDeh (ORCPT ); Fri, 18 May 2007 23:34:37 -0400 Received: from ozlabs.org ([203.10.76.45]:52032 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754717AbXESDeg (ORCPT ); Fri, 18 May 2007 23:34:36 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17998.28739.378409.440833@cargo.ozlabs.ibm.com> Date: Sat, 19 May 2007 13:34:27 +1000 From: Paul Mackerras To: Sergei Shtylyov Cc: Benjamin Herrenschmidt , linuxppc-dev@ozlabs.org, tglx@linutronix.de, Dave Liu , mingo@elte.hu, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver In-Reply-To: <464DAD06.2060504@ru.mvista.com> References: <200705172142.26739.sshtylyov@ru.mvista.com> <464CB071.5050504@ru.mvista.com> <9095839480a9686d9c40aa6143edb804@kernel.crashing.org> <464CB460.40905@ru.mvista.com> <97d47c2261fe9cd3f1a6c864278a6ab6@kernel.crashing.org> <1179464690.32247.370.camel@localhost.localdomain> <1179466769.3658.0.camel@localhost.localdomain> <1179472096.32247.394.camel@localhost.localdomain> <464DAD06.2060504@ru.mvista.com> X-Mailer: VM 7.19 under Emacs 21.4.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 469 Lines: 13 Sergei Shtylyov writes: > Yeah, the classic decrementer is programmed off-by-one. Actually it's programmed off by slightly less than one half on average, but it doesn't matter since the error doesn't accumulate. Paul. - 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/