[Intel-gfx] [PATCH] drm/i915: Cancel all ready but queued requests when wedging

[Chris Wilson]

Quoting Chris Wilson (2017-09-15 17:49:16)
> When wedging the hw, we want to mark all in-flight requests as -EIO.
> This is made slightly more complex by execlists who store the ready but
> not yet submitted-to-hw requests on a private queue (an rbtree
> priolist). Call into execlists to cancel not only the ELSP tracking for
> the submitted requests, but also the queue of unsubmitted requests.
> 

Reported-by: Michał Winiarski <michal.winiarski at intel.com>
> Testcase: igt/gem_eio/in-flight-contexts
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Michał Winiarski <michal.winiarski at intel.com>
> Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
-Chris