On Thursday, August 10, 2017 6:20:55 AM CEST Viresh Kumar wrote: > Utilization update callbacks are now processed remotely, even on the > CPUs that don't share cpufreq policy with the target CPU (if > dvfs_possible_from_any_cpu flag is set). > > But in non-fast switch paths, the frequency is changed only from one of > policy->related_cpus. This happens because the kthread which does the > actual update is bound to a subset of CPUs (i.e. related_cpus). > > Allow frequency to be remotely updated as well (i.e. call > __cpufreq_driver_target()) if dvfs_possible_from_any_cpu flag is set. > > Reported-by: Pavan Kondeti <pkond...@codeaurora.org> > Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org> > --- > kernel/sched/cpufreq_schedutil.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/kernel/sched/cpufreq_schedutil.c > b/kernel/sched/cpufreq_schedutil.c > index 2e74c49776be..504d0752f8f2 100644 > --- a/kernel/sched/cpufreq_schedutil.c > +++ b/kernel/sched/cpufreq_schedutil.c > @@ -487,7 +487,11 @@ static int sugov_kthread_create(struct sugov_policy > *sg_policy) > } > > sg_policy->thread = thread; > - kthread_bind_mask(thread, policy->related_cpus); > + > + /* Kthread is bound to all CPUs by default */ > + if (!policy->dvfs_possible_from_any_cpu) > + kthread_bind_mask(thread, policy->related_cpus); > + > init_irq_work(&sg_policy->irq_work, sugov_irq_work); > mutex_init(&sg_policy->work_lock); > >
Applied, thanks!
