drm: add option to force writeback off.
authorDave Airlie <airlied@starflyer.(none)>
Fri, 30 Sep 2005 07:09:07 +0000 (17:09 +1000)
committerDave Airlie <airlied@linux.ie>
Fri, 30 Sep 2005 07:09:07 +0000 (17:09 +1000)
In order to get some better debugging from people about certain hangs/crashes
we need to be able to turn AGP writeback off permanently...

Signed-off-by: Dave Airlie <airlied@linux.ie>

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