[Intel-gfx] [RFC v2 2/2] drm/i915: Use ABI engine class in error state ecode

[Chris Wilson]

Quoting Tvrtko Ursulin (2020-11-05 11:38:42)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> Instead of printing out the internal engine mask, which can change between
> kernel versions making it difficult to map to actual engines, present a
> bitmask of hanging engines ABI classes. For example:
> 
>   [drm] GPU HANG: ecode 9:8:24dffffd, in gem_exec_schedu [1334]
> 
> Engine ABI class is useful to quickly categorize render vs media etc hangs
> in bug reports. Considering virtual engine even more so than the current
> scheme.
> 
> v2:
>  * Do not re-order fields. (Chris)
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Both patches look sane, so preemptive
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris