Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755761AbYCNIHY (ORCPT ); Fri, 14 Mar 2008 04:07:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752001AbYCNIHI (ORCPT ); Fri, 14 Mar 2008 04:07:08 -0400 Received: from bender.weihenstephan.org ([62.245.246.226]:33995 "EHLO bender.weihenstephan.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750935AbYCNIHG convert rfc822-to-8bit (ORCPT ); Fri, 14 Mar 2008 04:07:06 -0400 X-Greylist: delayed 1527 seconds by postgrey-1.27 at vger.kernel.org; Fri, 14 Mar 2008 04:07:06 EDT From: Juergen Beisert Organization: Privat To: linux-kernel@vger.kernel.org Subject: Re: Linux UIO driver cache problem in PowerPC (fix) Date: Fri, 14 Mar 2008 08:41:33 +0100 User-Agent: KMail/1.9.4 References: <169c03cb0803121222h5fca9cdal5af873cd2a700f4d@mail.gmail.com> <20080313081932.4edee290@dilbert.local> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200803140841.33981.juergen127@kreuzholzen.de> X-cff-LastScanner: pcre Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 975 Lines: 25 On Thursday 13 March 2008 22:53, Grant Likely wrote: > On Thu, Mar 13, 2008 at 1:19 AM, Hans-J?rgen Koch wrote: > > Am Wed, 12 Mar 2008 15:22:59 -0400 > > > > schrieb "Jean-Samuel Chenard" : > > > Hi, > > > > Hi Jean-Samuel, > > thanks for your report. Please CC LKML if you find bugs like this. I > > also added Grant Likely (PPC Xilinx Virtex maintainer), as it seems to > > be a platform specific problem. > > Hmmm. I'm not a memory handling expert so I don't know what's going > on here. Josh, does this look like anything that would be ppc405 > related? The UIO also doesn't work on a MPC5200 CPU. With the additional pgprot_noncached() call now it works as expected. Juergen -- 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/