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]> --- drivers/idle/intel_idle.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 92d1206..38da3fb 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -683,6 +683,9 @@ 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; } -- 1.8.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
