[Intel-gfx] [PATCH 5/6] drm/i915: Handle PendingFlip on gen3 robustly

[Chris Wilson]

On Tue, 24 Apr 2012 12:50:35 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> > +			/* "flip pending" bit means done if this bit is set */
> > +			I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
> > +
> 
> Aha.  I hope this works across platforms.  I don't even know why this
> bit exists, so I hope it's safe to change on a given chipset & platform.

Patch splitting to come. So far I've tested on a 945gm and PineView and
both are happy with the legacy PendingFlip status mode. And Daniel has
tested on a 915g which was demonstrating the same trouble as our dear
bugzilla reporter. One person I'd like to see I can get testing is Simon
Farnsworth if he still has only of his 945s available for testing.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre