drm/i915/guc: refactor guc_init_doorbell_hw()

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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 2016-08-09 15:19:20 +01:00 • committed by Tvrtko Ursulin

parent 8888cd0154

commit 84b7f88235

1 changed files with 30 additions and 24 deletions

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drivers/gpu/drm/i915/i915_guc_submission.c

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