From dbf87ab89fbd14b723b7282de635bc70f4996342 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 20 Dec 2013 19:47:28 +0100 Subject: intel_idle: do C1E promotion disable quirk for hotplugged CPUs 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 Signed-off-by: Kyungmin Park Cc: Len Brown Reviewed-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki --- drivers/idle/intel_idle.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/idle/intel_idle.c') diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 797ed29a36ea..920232ffb282 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -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; } -- cgit v1.2.3