From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267488AbUHPJQa (ORCPT ); Mon, 16 Aug 2004 05:16:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267489AbUHPJQ3 (ORCPT ); Mon, 16 Aug 2004 05:16:29 -0400 Received: from mail.humboldt.co.uk ([81.2.65.18]:48258 "EHLO mail.humboldt.co.uk") by vger.kernel.org with ESMTP id S267488AbUHPJPo (ORCPT ); Mon, 16 Aug 2004 05:15:44 -0400 Subject: Re: [PATCH][2.4.27] PowerPC 745x data corruption bug fix From: Adrian Cox To: Paul Mackerras Cc: Mikael Pettersson , linux-kernel@vger.kernel.org, linuxppc-dev@lists.linuxppc.org In-Reply-To: <16672.30991.27709.349218@cargo.ozlabs.ibm.com> References: <200408160254.i7G2ss3S000656@harpo.it.uu.se> <1092642051.959.56.camel@localhost> <16672.30991.27709.349218@cargo.ozlabs.ibm.com> Content-Type: text/plain Message-Id: <1092647739.959.63.camel@localhost> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Mon, 16 Aug 2004 10:15:39 +0100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2004-08-16 at 10:06, Paul Mackerras wrote: > Adrian Cox writes: > > > Pages should be marked coherent for the MPC106 as well as the MPC107, > The MPC106 has an internal cache? I had a quick look in the 106 and > 107 manuals and I couldn't see in either one where it talks about a > cache. Do you know where I should be looking? MPC106UM, section 8.1.3.1: PCI to System Memory Read Buffer (PCMRB) MPC107UM, section 12.1.3.1.1: PCI to Local Memory Read Buffer (PCMRB) It's not a big cache, but it's large enough to hold the transmit descriptor of a pcnet32 ethernet. It's easy to miss this in the manual, and I only noticed it when my first 7450 board wouldn't work with NFS root. - Adrian Cox Humboldt Solutions Ltd.