Bug #567
closed
AGP support for newer Intel chips (9xx)
0%
Description
Here's a patch to add an AGP GART support for newer Intel chips. I've tested
it with i945G + modular-xorg + several media players.
http://www.hadaly.org/fuyuki/agp-i915.patch
Note that I'm new to DF kernel and the patch is mostly a blind merge from
FreeBSD.
On FreeBSD i845G support seems to be accidentally dropped at r1.37.
I recovered it in the patch above.
On DragonFly PCI_MAP_FIXUP option is required for i915 variants because
AGP_APBASE and AGP_I915_MMADR points the same address. (?)
Some rework would be needed to eliminate redundant allocations.
Known bug: panic on detach. I don't know why the function is working on
FreeBSD. (maybe not?)
Updated by TGEN about 17 years ago
Our PCI code is rather stale, and is in no way in sync with the changes
FreeBSD made to make it properly support power state changing and detaching.
Cheers,
--
Thomas E. Spanjaard
tgen@netphreax.net
Updated by corecode almost 17 years ago
all agp code should be ported from freebsd to support newer chipsets...