From: Andi Kleen <ak@suse.de>
To: Chuck Ebbert <76306.1226@compuserve.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: x86-64: Why minimum 64MB aperture?
Date: Fri, 23 Sep 2005 16:49:07 +0200 [thread overview]
Message-ID: <200509231649.07354.ak@suse.de> (raw)
In-Reply-To: <200509230410_MC3-1-AAFB-6FC6@compuserve.com>
On Friday 23 September 2005 10:07, you wrote:
> I get this when I boot:
>
> Checking aperture...
> CPU 0: aperture @ 23a8000000 size 32 MB
> Aperture from northbridge cpu 0 too small (32 MB)
>
>
> arch/x86_64/aperture.c says this when aperture is < 64MB.
>
> I have no way of changing this in my BIOS. The systems shares video memory
> with RAM. All I can change is the amount of RAM allocated for video (32,
> 64 or 128 MB, currently set to 64.)
32MB is too small for IOMMU use. Linux will fix it up for you.
-Andi
prev parent reply other threads:[~2005-09-23 14:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-23 8:07 x86-64: Why minimum 64MB aperture? Chuck Ebbert
2005-09-23 14:49 ` Andi Kleen [this message]
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