[Intel-gfx] [PATCH 1/2] drm/i915/execlists: Notify context-out for lost requests

[Chris Wilson]

Quoting Chris Wilson (2017-09-26 11:17:19)
> When cancelling requests, also send the notification to any listeners
> (gvt) that the request is no longer scheduler on hw. They may require to
> keep the in/out exactly balanced, and so the reuse after the reset may
> confuse the listener.
> 
> Fixes: 221ab9719bf3 ("drm/i915/execlists: Unwind incomplete requests on resets")
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: "Zhenyu Wang" <zhenyuw at linux.intel.com>
> Cc: "Wang, Zhi A" <zhi.a.wang at intel.com>
> 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>

Pushed this first patch with Mika's earlier r-b and spelling fix, as it
fixes the recent change in behaviour. The argument over whether gvt
would like a new status for this can be held later. (By later, I mean
later today ;)
-Chris