[Intel-gfx] [PATCH 26/30] drm/i915: Maintain fenced gpu access until we flush the fence

[Chris Wilson]

On Wed, 13 Apr 2011 22:58:26 +0200, Daniel Vetter <daniel at ffwll.ch> wrote:
> Just add a small comment in the commit msg that it essentially disables
> that optimization, in case somebody bisects a performance regression to
> this.

Noted. But a bisect will never land here. Because I've left something out
of this patch series until gem_stress is my friend...

  In applying this fix for a corruption bug, we do lose the ability to
  detect the earliest end of GPU fenced access, thus disabling the
  inherent optimization.

-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre