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drm/i915/guc: refactor guc_init_doorbell_hw()
We have essentially the same code in each of two different loops, so we can refactor it into a little helper function. This also reduces the amount of work done during startup, as we now only reprogram h/w found to be in a state other than that expected, and so avoid the overhead of setting doorbell registers to the state they're already in. Signed-off-by: Dave Gordon <david.s.gordon@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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Dave Gordon
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Tvrtko Ursulin
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Aug 10, 2016
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