From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.gmx.net (mail.gmx.de [213.165.64.21]) by ozlabs.org (Postfix) with SMTP id AB6B6681BD for ; Tue, 24 Jan 2006 09:12:10 +1100 (EST) Date: Mon, 23 Jan 2006 23:12:07 +0100 (MET) From: "Gerhard Pircher" To: Benjamin Herrenschmidt MIME-Version: 1.0 References: <1137883724.12998.74.camel@localhost.localdomain> Subject: Re: AGPGART driver for ArticiaS - ioremap() problem Message-ID: <29335.1138054327@www080.gmx.net> Content-Type: text/plain; charset="iso-8859-1" Cc: linuxppc-dev@ozlabs.org, debian-powerpc@lists.debian.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > --- Ursprüngliche Nachricht --- > Von: Benjamin Herrenschmidt > An: Gerhard Pircher > Kopie: linuxppc-dev@ozlabs.org, debian-powerpc@lists.debian.org > Betreff: Re: AGPGART driver for ArticiaS - ioremap() problem > Datum: Sun, 22 Jan 2006 09:48:44 +1100 > > On Sat, 2006-01-21 at 02:59 +0100, Gerhard Pircher wrote: > > > Yes, I see. :( The code mostly allocates the resources for the AGPGART > > driver beyond the real memory space, thus preventing the X server to > > work. Sometimes the resource is also mapped to where the resource of > > the graphic card resides (address 0x88000000, compare with the included > > iomem file). > > The AGP aperture should generally be located "outside" of those spaces. > That is above RAM and in some place where no device already resides... > It can be made to overlap RAM but that isn't a good idea (that's what > happens on Macs though due to a bug in the Apple chipset). Ahh, so the AGP aperture should not be within the memory space and any other PCI/IO address range. Slowly but surely I become confused. ;-) > I don't see anything related to AGP in your output... you didn't post > the lspci as root thus it's missing all the useful infos ;) I included a new lspci output log. :-) (now done as root) > Also, the AGP base isn't generally a PCI BAR of the bridge... it is one > in your case ? I'm afraid I can't answer this question (you know, we have no datasheet for the ArticiaS yet). From what I can see in the log, there is an unassigned memory region (type 0, should be <4GB I guess). Could this affect AGP operation? Gerhard -- Lust, ein paar Euro nebenbei zu verdienen? Ohne Kosten, ohne Risiko! Satte Provisionen für GMX Partner: http://www.gmx.net/de/go/partner