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Chris Wilson authored
Ever noticed that our interrupt handlers are where we spend most of our time on a busy system? In part this is unavoidable as each interrupt requires to poll and reset several registers, but we can try and do so as efficiently as possible. Function old new delta ilk_irq_handler 2317 2156 -161 v2: Restore the irqreturn_t ret Function old new delta ilk_irq_handler.cold 63 72 +9 ilk_irq_handler 2221 2080 -141 A slight improvement in the baseline overnight as well! Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200601140355.20243-1-chris@chris-wilson.co.uk
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