[Intel-gfx] [PATCH 05/12] drm/i915: Clear FlipDone semantics change for pageflipping on gen3
jbarnes at virtuousgeek.org
Wed Apr 25 22:48:56 CEST 2012
On Tue, 24 Apr 2012 22:59:45 +0100
Chris Wilson <chris at chris-wilson.co.uk> wrote:
> On later gen3, you are able to select the meaning of the FlipPending
> status bit in IIR and change it to FlipDone. This was sometimes done by
> the BIOS leading to confusion on just how pageflipping worked on gen3.
> Simplify the implementation by using the legacy meaning for all gen3
> Note: this makes all gen3 machines equally broken...
Looks ok, of course lots of qa on the final result...
Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>
Jesse Barnes, Intel Open Source Technology Center
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