5427f20785
In the idle worker we drop the prolonged GT wakeref used to cover such essentials as interrupt delivery. (When a CS interrupt arrives, we also assert that the GT is awake.) However, it turns out that 10ms is not long enough to be assured that the last CS interrupt has been delivered, so bump that to 200ms, and move the entirety of that wait to before we take the struct_mutex to avoid blocking. As this is now a potentially long wait, restore the earlier behaviour of bailing out early when a new request arrives. v2: Break out the repeated check for new requests into its own little helper to try and improve the self-commentary. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171023213237.26536-1-chris@chris-wilson.co.uk |
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