[Intel-gfx] [PATCH] drm/i915: Move frontbuffer CS write tracking from ggtt vma to object

[Joonas Lahtinen]

On ke, 2016-11-16 at 19:07 +0000, Chris Wilson wrote:
> I tried to avoid having to track the write for every VMA by only
> tracking writes to the ggtt. However, for the purposes of frontbuffer
> tracking this is insufficient as we need to invalidate around writes not
> just to the the ggtt but all aliased ppgtt views of the framebuffer. By
> moving the critical section to the object and only doing so for
> framebuffer writes we can reduce the tracking even further by only
> watching framebuffers and not vma.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
> 

Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation