tree cf3a819d4726147b8214eb4a6337b2423c1d245f
parent 7d51d97925e6cbfa2f7f14e3e3aa363b35ee5c24
author Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> 1434626591 +0530
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1434978915 +0200

cpuidle: powernv/pseries: Auto-promotion of snooze to deeper idle state

The idle cpus which stay in snooze for a long period can degrade the
perfomance of the sibling cpus. If the cpu stays in snooze for more
than target residency of the next available idle state, then exit from
snooze. This gives a chance to the cpuidle governor to re-evaluate the
last idle state of the cpu to promote it to deeper idle states.

Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>