Re: [PATCH] drm/i915: capture aux page table error register

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Quoting Lionel Landwerlin (2019-10-25 13:17:18)
> TGL introduced a feature in which we map the main surface to the
> auxilliary surface. If we screw up the page tables, the HW has a
> register to tell us which engine encounters a fault in the page table
> walk.

Platform specific, or for likely all gen12 and then gen12+?
 
> Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
Acked-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

I'm reminded of my desire to just grab a snapshot of all nearby mmio and
zip it up.
-Chris
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