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authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2013-12-20 19:47:28 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-11 01:26:49 +0100
commitdbf87ab89fbd14b723b7282de635bc70f4996342 (patch)
treeef5c18c825d823f5d91f3c70ce3aa45e527efe5e /drivers/idle
parent130a5f692425e6237229598a8624da0a247f33d5 (diff)
downloadlinux-dbf87ab89fbd14b723b7282de635bc70f4996342.tar.bz2
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 <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Len Brown <lenb@kernel.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/idle')
-rw-r--r--drivers/idle/intel_idle.c3
1 files changed, 3 insertions, 0 deletions
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;
}