From: Owain Ainsworth (ogacvs.openbsd.org)
Date: Fri Aug 06 2010 - 08:09:52 CDT

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CVSROOT: /cvs
Module name: src
Changes by: ogacvs.openbsd.org 2010/08/06 07:09:52

Modified files:
        sys/dev/pci : agp_i810.c

Log message:
Previous code to handle suspend/resume for intagp assumed that
everything was unbound before we go down.

Due to software fallbacks from the vt-switched X this is not strictly
true, so save/restore the gtt (which is stored in a BAR and thus
volatile).

i915 and i945 still have some (unrelated) coruption on dzen2 on resume
which I am looking for still (theory: fence registers), but this helps a
LOT of machines.

``commit'' deraadt. tested by many (and in snaps the last few days.

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