[Intel-gfx] [PATCH] drm/i915: Break modeset deadlocks on reset

[Chris Wilson]

Quoting Tvrtko Ursulin (2017-06-21 14:37:33)
> 
> On 21/06/2017 12:46, Chris Wilson wrote:
> > It's the replacement for the removed idle_work, but now I realise that we
> > are guaranteed a i915_gem_retire_requests() as part of the reset procedure.
> 
> So will be respinning with this removed?

I will send it on after finishing an oops reproducer (for
drm_setversion). Currently I've bdw/bxt doing hang testing just to gain
some more confidence -- though by design they shouldn't be hitting this
path at all anymore (per-engine lockless resets ftw). pnv now recovers
from its struct_mutex deadlock just fine.
-Chris