Re: [Intel-gfx] [PATCH 29/36] drm/i915: Replace hangcheck by heartbeats

Thu, 29 Aug 2019 08:06:10 -0700 

> -----Original Message-----
> From: Chris Wilson <[email protected]>
> Sent: Thursday, August 29, 2019 1:12 AM
> To: [email protected]
> Cc: Chris Wilson <[email protected]>; Joonas Lahtinen
> <[email protected]>; Ursulin, Tvrtko <[email protected]>;
> Bloomfield, Jon <[email protected]>
> Subject: [PATCH 29/36] drm/i915: Replace hangcheck by heartbeats
> 
> Replace sampling the engine state every so often with a periodic
> heartbeat request to measure the health of an engine. This is coupled
> with the forced-preemption to allow long running requests to survive so
> long as they do not block other users.
> 
> Signed-off-by: Chris Wilson <[email protected]>
> Cc: Joonas Lahtinen <[email protected]>
> Cc: Tvrtko Ursulin <[email protected]>
> Cc: Jon Bloomfield <[email protected]>
> ---
Reviewed-by: Jon Bloomfield <[email protected]>
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