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author | anholt <anholt@FreeBSD.org> | 2007-07-13 16:28:12 +0000 |
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committer | anholt <anholt@FreeBSD.org> | 2007-07-13 16:28:12 +0000 |
commit | f7511f4dbb30e1ada093138d922027e80837af51 (patch) | |
tree | e41677ab92d3fda3351e0bc12f04962c94360cb6 /release | |
parent | bd3c8bf640143f7777551f9f5ee674635684da96 (diff) | |
download | FreeBSD-src-f7511f4dbb30e1ada093138d922027e80837af51.zip FreeBSD-src-f7511f4dbb30e1ada093138d922027e80837af51.tar.gz |
Add support for G965/Q965/GM965/GME965/GME945 AGP.
This adds a function to agp.c to set the aperture resource ID if it's
not the usual AGP_APBASE. Previously, agp.c had been assuming
AGP_APBASE, which resulted in incorrect agp_info, and contortions by
agp_i810.c to work around it.
This also adds functions to agp.c for default AGP_GET_APERTURE() and
AGP_SET_APERTURE(), which return the aperture resource size and disallow
aperture size changes. Moving to these for our AGP drivers will likely
result in stability improvements. This should fix 855-class aperture
size detection.
Additionally, refuse to attach agp_i810 when some RAM is above 4GB and
the GART can't reference memory that high. This should be very rare.
The correct solution would be bus_dma conversion for agp, which is
beyond the scope of this change. Other AGP drivers could likely use
this change as well.
G33/Q35/Q33 AGP support is also included, but disconnected by default
due to lack of testing.
PR: kern/109724 (855 aperture issue)
Submitted by: FUJIMOTO Kou<fujimoto@j.dendai.ac.jp>
Approved by: re (hrs)
Diffstat (limited to 'release')
0 files changed, 0 insertions, 0 deletions