sched: tune: Add utilest interface to schedtune.

Change-Id: I4e5313f7128f5aa599b7214eaf13679d1f9484ef
Signed-off-by: lakkyung.jung <lakkyung.jung@samsung.com>

diff --git a/kernel/sched/tune.c b/kernel/sched/tune.c
index 73a02fece874e1c6fe39e9ebba593182395f06ff..d388f71fa1dbee0b1b390839398218db875d9c6a 100644 (file)
--- a/kernel/sched/tune.c
+++ b/kernel/sched/tune.c
@@ -79,6 +79,9 @@ struct schedtune {
 
        /* SchedTune group balancer */
        struct group_balancer gb;
+
+       /* SchedTune util-est */
+       int util_est_en;
 };
 
 static inline struct schedtune *css_st(struct cgroup_subsys_state *css)
@@ -411,6 +414,23 @@ int schedtune_task_boost(struct task_struct *p)
        return task_boost;
 }
 
+int schedtune_util_est_en(struct task_struct *p)
+{
+       struct schedtune *st;
+       int util_est_en;
+
+       if (unlikely(!schedtune_initialized))
+               return 0;
+
+       /* Get util_est value */
+       rcu_read_lock();
+       st = task_schedtune(p);
+       util_est_en = st->util_est_en;
+       rcu_read_unlock();
+
+       return util_est_en;
+}
+
 int schedtune_prefer_idle(struct task_struct *p)
 {
        struct schedtune *st;
@@ -759,6 +779,24 @@ gb_window_write(struct cgroup_subsys_state *css, struct cftype *cft,
        return 0;
 }
 
+static u64
+util_est_en_read(struct cgroup_subsys_state *css, struct cftype *cft)
+{
+       struct schedtune *st = css_st(css);
+
+       return st->util_est_en;
+}
+
+static int
+util_est_en_write(struct cgroup_subsys_state *css, struct cftype *cft,
+           u64 util_est_en)
+{
+       struct schedtune *st = css_st(css);
+       st->util_est_en = util_est_en;
+
+       return 0;
+}
+
 static u64
 prefer_idle_read(struct cgroup_subsys_state *css, struct cftype *cft)
 {
@@ -874,6 +912,11 @@ static struct cftype files[] = {
                .read_u64 = gb_window_read,
                .write_u64 = gb_window_write,
        },
+       {
+               .name = "util_est_en",
+               .read_u64 = util_est_en_read,
+               .write_u64 = util_est_en_write,
+       },
        { }     /* terminate */
 };