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52e68630d1
i965 uses the Display Registers to compute the offset from the display base so the new base does not need adjusting when flipping. The older chipsets use a fence to access the display and so do perceive the surface as linear and have a single base register which is reprogrammed using the flip. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Reported-by: Marty Jack <martyj19@comcast.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> |
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