cpuidle: Allow enforcing deepest idle state selection

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When idle injection is used to cap power, we need to override the
governor's choice of idle states.

For this reason, make it possible the deepest idle state selection to
be enforced by setting a flag on a given CPU to achieve the maximum
potential power draw reduction.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Jacob Pan 2016-11-28 23:03:04 -08:00 • committed by Rafael J. Wysocki

parent ed61390bff

commit bb8313b603

3 changed files with 26 additions and 7 deletions

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13

drivers/cpuidle/cpuidle.c

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7

include/linux/cpuidle.h

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13

kernel/sched/idle.c

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