[Intel-gfx] Keep package awake during punit access

Chris Wilson chris at chris-wilson.co.uk
Wed Jan 10 12:55:04 UTC 2018


If we use the punit often enough, we eventually see a machine hang on
Valleyview and perhaps it may explain a few Braswell incompletes as
well. The cause seems to be the package sleeping while the punit is
active, so we simply have to wake everything up before we start talking.
This is very expensive...
-Chris



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