[PATCH] to fix slow gen2 Intel video (i830, i845, i85x, i865) with KMS

[Taku YAMAMOTO]

Hi all,

A good news to owners of i830, i845, i852, i855 and i865 (a.k.a. gen2),
who've got frustrated with the bad performance with KMS.

I managed to track down the root cause of the slowness of gen2 with KMS and
finally fixed it.
The attached one-liner patch is the fix.
(It was my surprise that the actual problem lied in agp rather than i915kms.)

-- 
-|-__   YAMAMOTO, Taku
 | __ <     <taku at tackymt.homeip.net>

      - A chicken is an egg's way of producing more eggs. -
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: agp_i830_chipset_flush.patch
URL: <http://lists.freebsd.org/pipermail/freebsd-current/attachments/20130126/21a35e61/attachment.ksh>