drm/i915/execlists: Shortcircuit queue_prio() for no internal levels

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If there are no internal levels and the user priority-shift is zero, we
can help the compiler eliminate some dead code:

Function                                     old     new   delta
start_timeslice                              169     154     -15
__execlists_submission_tasklet              4696    4659     -37

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200525075347.582-4-chris@chris-wilson.co.uk

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Chris Wilson 2020-05-25 08:53:39 +01:00

parent 7c4541a37b

commit 9ae6c4ef7b

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drivers/gpu/drm/i915/gt/intel_lrc.c

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