This patch updates the legacy governors (ondemand/conservative) to
process cpufreq utilization update hooks to be called for remote CPUs
(i.e. For updates to the runqueue of other non-local CPUs).
Based on initial work from Steve Muckle.
Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
---
drivers/cpufreq/cpufreq_governor.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/cpufreq/cpufreq_governor.c
b/drivers/cpufreq/cpufreq_governor.c
index 47e24b5384b3..0b49fc8bb91d 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -275,6 +275,10 @@ static void dbs_update_util_handler(struct
update_util_data *data, u64 time,
struct policy_dbs_info *policy_dbs = cdbs->policy_dbs;
u64 delta_ns, lst;
+ /* Allow remote callbacks only on the CPUs sharing cpufreq policy */
+ if (!cpumask_test_cpu(smp_processor_id(), policy_dbs->policy->cpus))
+ return;
+
/*
* The work may not be allowed to be queued up right now.
* Possible reasons:
--
2.13.0.71.gd7076ec9c9cb
