Re: AGP aperture beyond 4GB not valid?

From: Andi Kleen
Date: Tue Aug 12 2008 - 22:38:22 EST


Chris Adams <cmadams@xxxxxxxxxx> writes:
>
> My BIOS doesn't have an IOMMU option (latest BIOS available for the
> mboard). However, it appears that an aperture is allocated but the
> kernel then ignores it due to where it is placed. Why?

32MB is normally not a useful aperture. Likely it's some garbage
value the BIOS is leaving in the registers.

> Is there anything I can or should do about this (what impact does this
> really have)?

It will eat your babies. No really except for some lost RAM nothing.

-Andi

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/