From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: [Linux-fbdev-devel] Re: Who is stomping PCI config space? Date: Sat, 05 Mar 2005 09:16:34 +1100 Message-ID: <1109974594.5611.287.camel@gaston> References: <9e4733910503031103552514b9@mail.gmail.com> <1109891245.5611.246.camel@gaston> <16936.17851.290824.371736@xf14.local> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit In-Reply-To: <16936.17851.290824.371736@xf14.local> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: xorg-bounces@lists.freedesktop.org Errors-To: xorg-bounces@lists.freedesktop.org Content-Type: text/plain; charset="us-ascii" To: Linux Fbdev development list Cc: Xserver development On Fri, 2005-03-04 at 12:25 +0100, Egbert Eich wrote: > Benjamin Herrenschmidt writes: > > > > I had a report of something similar with X and a mach64 ... I haven't > > yet investigated, but basically, X is using "fbdev" (so no specific > > driver) and seem to be disabling memory access to the card, thus blowing > > up the kernel fbdev. > > > > Benjamin, > > I faintly remember adding code to the Xserver that it wouldn't do this > when you only used fbdev drivers. > It may do this for setup (ie. probing) as it has no idea about the drivers > it is going to encounter. With the new interface I've added we may actually > change this. I'm already doing this to determine if I need to enable PIO. > > I need to look at this code again, though. Ok. In this case, the fbdev only uses mmio. Anyway, I'll investigate as soon as I can install the repro case (FC3 distro) on an mach64 machine, probably early next week.