cpufreq: powernv: Handle throttling due to Pmax capping at chip level

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The On-Chip-Controller(OCC) can throttle cpu frequency by reducing the
max allowed frequency for that chip if the chip exceeds its power or
temperature limits. As Pmax capping is a chip level condition report
this throttling behavior at chip level and also do not set the global
'throttled' on Pmax capping instead set the per-chip throttled
variable. Report unthrottling if Pmax is restored after throttling.

This patch adds a structure to store chip id and throttled state of
the chip.

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

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Shilpasri G Bhat 2015-07-16 13:34:18 +05:30 • committed by Rafael J. Wysocki

parent a34e63b144

commit 053819e0bf

1 changed files with 55 additions and 4 deletions

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drivers/cpufreq/powernv-cpufreq.c

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