[Intel-gfx] [PATCH 04/10] drm/i915/execlists: Force preemption

2019-10-14 Thread Chris Wilson
If the preempted context takes too long to relinquish control, e.g. it is stuck inside a shader with arbitration disabled, evict that context with an engine reset. This ensures that preemptions are reasonably responsive, providing a tighter QoS for the more important context at the cost of

[Intel-gfx] [PATCH 04/10] drm/i915/execlists: Force preemption

2019-10-10 Thread Chris Wilson
If the preempted context takes too long to relinquish control, e.g. it is stuck inside a shader with arbitration disabled, evict that context with an engine reset. This ensures that preemptions are reasonably responsive, providing a tighter QoS for the more important context at the cost of