From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by ozlabs.org (Postfix) with SMTP id 6B831DDE34 for ; Tue, 4 Mar 2008 08:37:07 +1100 (EST) Content-Type: text/plain; charset="us-ascii" Date: Mon, 03 Mar 2008 22:37:05 +0100 From: "Gerhard Pircher" In-Reply-To: <1204577051.21545.12.camel@pasglop> Message-ID: <20080303213705.312670@gmx.net> MIME-Version: 1.0 References: <20071125234254.B4405DDE49@ozlabs.org> <20080302110505.175270@gmx.net> <1204490829.15052.482.camel@pasglop> <20080302223012.90210@gmx.net> <1204498569.15052.488.camel@pasglop> <20080303195117.7040@gmx.net> <1204577051.21545.12.camel@pasglop> Subject: Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC To: benh@kernel.crashing.org Cc: airlied@linux.ie, linuxppc-dev@ozlabs.org, dri-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , -------- Original-Nachricht -------- > Datum: Tue, 04 Mar 2008 07:44:11 +1100 > Von: Benjamin Herrenschmidt > An: Gerhard Pircher > CC: airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.sourceforge.net, linuxppc-dev@ozlabs.org > Betreff: Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC > On Mon, 2008-03-03 at 20:51 +0100, Gerhard Pircher wrote: > > > Remove the GFP_HIGHMEM from the above. It looks like our cache > > > flushing isn't going to work for highmem, it would need some > > > kmap's for that. > > > Yes, it looks like this was the problem. No kernel oops anymore. > > The machine locks up anyway (which is a well known hardware problem). > > It doesn't lock up with CPPIOMode=true, but probably only because the > > initialization of DRI fails with "BAD cp_mode (f0000000)!". > > Damn, I wonder why you insist trying to make that machine work :-) The > hardware is just totally busted. Because it's a challenge! :) Or because the OS4 developers say that PCIGART works. Gerhard -- Psst! Geheimtipp: Online Games kostenlos spielen bei den GMX Free Games! http://games.entertainment.web.de/de/entertainment/games/free