On Thu, Jan 28, 2016 at 12:55:38PM +0530, Shilpasri G Bhat wrote:
cpu_to_chip_id() does a DT walk through to find out the chip id by
taking a contended device tree lock. This adds an unnecessary overhead
in a hot path. So instead of calling cpu_to_chip_id() everytime cache
the chip ids for all cores in the array 'core_to_chip_map' and use it
in the hotpath.
Reported-by: Anton Blanchard <redacted>
Signed-off-by: Shilpasri G Bhat <redacted>
Reviewed-by: Gautham R. Shenoy <redacted>
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Thanks and Regards
gautham.