From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965514AbXCGO1E (ORCPT ); Wed, 7 Mar 2007 09:27:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965522AbXCGO1E (ORCPT ); Wed, 7 Mar 2007 09:27:04 -0500 Received: from gateway-1237.mvista.com ([63.81.120.155]:19710 "EHLO imap.sh.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S965514AbXCGO1C (ORCPT ); Wed, 7 Mar 2007 09:27:02 -0500 Message-ID: <45EECBAA.2020608@ru.mvista.com> Date: Wed, 07 Mar 2007 17:26:50 +0300 From: Sergei Shtylyov Organization: MontaVista Software Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803 X-Accept-Language: ru, en-us, en-gb MIME-Version: 1.0 To: Tsutomu OWA Cc: mingo@elte.hu, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [patch 0/6 -rt] powerpc 2.6.20-rt8: fix boot/runtime errors/warnings for PowerPC(ppc64) References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Tsutomu OWA wrote: > Hi Ingo, > Please consider for inclusion in your rt tree. > This series of patches fixes boot and runntime errors/warnings for > powerpc (esp. 64 bit). This applies to linux-2.6.20, patch-2.6.20-rt8 > and previous my patch set; > http://ozlabs.org/pipermail/linuxppc-dev/2007-March/032640.html > http://lkml.org/lkml/2007/3/6/503 > Compile and boot tested on celleb (Cell Reference set) for both > PREEMPT_RT=y and PREEMPT_NONE=y. > CONFIG_MCOUNT, CONFIG_LATENCY_TRACE and other tracing options nor > CONFIG_GENERIC_TIME, There is PowerPC genTOD patch and it's incorporated into -rt (don't know it works for Cell) but it breaks TOD vsyscalls. Several months ago I've posted patches removing them for the time being: http://ozlabs.org/pipermail/linuxppc-dev/2006-November/027686.html and I've heard that this issue is being worked on now by John Stultz. Here's also a patch implemeting read_persitent_clock(): http://www.tglx.de/projects/hrtimers/2.6.18/broken-out/gtod-persistent-clock-support-ppc.patch > clockevents etc are not yet ported. Note that there *is* PowerPC clockevents driver already (don't know if it works for Cell) -- it just never got merged to -rt: http://ozlabs.org/pipermail/linuxppc-dev/2006-November/027794.html http://ozlabs.org/pipermail/linuxppc-dev/2006-November/027852.html > Comments and suggestions are welcome. > Thanks in advance. > -- owa > TOSHIBA, Software Engineering Center.