intel_pstate: Do not set utilization update hook too early

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The utilization update hook in the intel_pstate driver is set too
early, as it only should be set after the policy has been fully
initialized by the core.  That may cause intel_pstate_update_util()
to use incorrect data and put the CPUs into incorrect P-states as
a result.

To prevent that from happening, make intel_pstate_set_policy() set
the utilization update hook instead of intel_pstate_init_cpu() so
intel_pstate_update_util() only runs when all things have been
initialized as appropriate.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Rafael J. Wysocki 2016-03-31 17:42:15 +02:00

parent 539a4c4247

commit bb6ab52f2b

1 changed files with 19 additions and 8 deletions

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drivers/cpufreq/intel_pstate.c

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