| Message ID | 1387565251-7051-7-git-send-email-b.zolnierkie@samsung.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
On 12/20/2013 07:47 PM, Bartlomiej Zolnierkiewicz wrote: > 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> > --- > 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; > }
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; }