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intel_idle: do C1E promotion disable quirk for hotplugged CPUs

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If the system is booted with some CPUs offline C1E promotion disable quirk
won't be applied because on_each_cpu() in intel_idle_cpuidle_driver_init()
operates only on online CPUs. Fix it by adding the C1E promotion disable
handling to intel_idle_cpu_init() (which is also called during CPU_ONLINE
operation).

Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Cc: Len Brown <[email protected]>
Reviewed-by: Daniel Lezcano <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2013-12-20 19:47:28 +01:00 • committed by Rafael J. Wysocki
commit dbf87ab89f
1 changed files with 3 additions and 0 deletions
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3
drivers/idle/intel_idle.c
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@ -688,6 +688,9 @@ static int intel_idle_cpu_init(int cpu)
if (icpu->auto_demotion_disable_flags)
smp_call_function_single(cpu, auto_demotion_disable, NULL, 1);
if (icpu->disable_promotion_to_c1e)
smp_call_function_single(cpu, c1e_promotion_disable, NULL, 1);
return 0;
}