sched: utilize big cluster CPUs evenly
Utilize big cluster CPUs evenly by rotating the first candidate CPU and
avoid previous CPU every second.
Change-Id: Idecb3df0080bfec0ec8fd86b1c5b0449ccfc551b
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index a5b1377..7ac731d 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2841,3 +2841,17 @@
{
return sched_feat(ENERGY_AWARE);
}
+
+#ifdef CONFIG_SCHED_CORE_ROTATE
+struct find_first_cpu_bit_env {
+ unsigned long *avoid_prev_cpu_last;
+ int *rotate_cpu_start;
+ int interval;
+ spinlock_t *rotate_lock;
+};
+
+int
+find_first_cpu_bit(struct task_struct *p, const cpumask_t *search_cpus,
+ struct sched_group *sg_target, bool *avoid_prev_cpu,
+ bool *do_rotate, struct find_first_cpu_bit_env *env);
+#endif