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Subject[PATCH v2 6/9] intel_idle: do C1E promotion disable quirk for hotplugged CPUs
Date
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 <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Len Brown <lenb@kernel.org>
---
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


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