Date: Wed, 27 Sep 2006 06:38:54 +0000 (UTC) From: Eric Anholt <anholt@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/pci agp_i810.c Message-ID: <200609270638.k8R6csJ0044991@repoman.freebsd.org>
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anholt 2006-09-27 06:38:54 UTC
FreeBSD src repository
Modified files:
sys/pci agp_i810.c
Log:
Add support for 945G/GM AGP chipsets.
The key problem was that the aperture size detection using the MSAC bit
doesn't work -- the bit appears to be set even when it shouldn't be. Linux
takes a different approach, testing for a bit of the GMADR (PCIR_BAR(2)) being
set. However, as I don't think that's a safe way to test aperture size, we
just allocate the resource and check its size. This also pointed out that
agp_generic_attach hadn't been allocating our aperture resource, which may
have caused problems in some cases.
Also corrected is a minor copy-and-pasteo in an error case.
PR: kern/103079
Submitted by: mnag
Tested on: i945GM, i915GM
MFC after: 2 weeks
Revision Changes Path
1.39 +29 -13 src/sys/pci/agp_i810.c
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