cpufreq: Drop schedfreq governor

We all should be using (and improving) the schedutil governor now. Get
rid of the non-upstream governor.

Tested on Hikey.

Change-Id: Ic660756536e5da51952738c3c18b94e31f58cd57
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

1 files changed, 1 insertions, 48 deletions

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index f41435e7f75d..ebf0d9329c86 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1636,41 +1636,6 @@ static void check_preempt_curr_rt(struct rq *rq, struct task_struct *p, int flag
 #endif
 }
 
-#ifdef CONFIG_SMP
-static void sched_rt_update_capacity_req(struct rq *rq)
-{
-	u64 total, used, age_stamp, avg;
-	s64 delta;
-
-	if (!sched_freq())
-		return;
-
-	sched_avg_update(rq);
-	/*
-	 * Since we're reading these variables without serialization make sure
-	 * we read them once before doing sanity checks on them.
-	 */
-	age_stamp = READ_ONCE(rq->age_stamp);
-	avg = READ_ONCE(rq->rt_avg);
-	delta = rq_clock(rq) - age_stamp;
-
-	if (unlikely(delta < 0))
-		delta = 0;
-
-	total = sched_avg_period() + delta;
-
-	used = div_u64(avg, total);
-	if (unlikely(used > SCHED_CAPACITY_SCALE))
-		used = SCHED_CAPACITY_SCALE;
-
-	set_rt_cpu_capacity(rq->cpu, 1, (unsigned long)(used));
-}
-#else
-static inline void sched_rt_update_capacity_req(struct rq *rq)
-{ }
-
-#endif
-
 static struct sched_rt_entity *pick_next_rt_entity(struct rq *rq,
 						   struct rt_rq *rt_rq)
 {
@@ -1739,17 +1704,8 @@ pick_next_task_rt(struct rq *rq, struct task_struct *prev)
 	if (prev->sched_class == &rt_sched_class)
 		update_curr_rt(rq);
 
-	if (!rt_rq->rt_queued) {
-		/*
-		 * The next task to be picked on this rq will have a lower
-		 * priority than rt tasks so we can spend some time to update
-		 * the capacity used by rt tasks based on the last activity.
-		 * This value will be the used as an estimation of the next
-		 * activity.
-		 */
-		sched_rt_update_capacity_req(rq);
+	if (!rt_rq->rt_queued)
 		return NULL;
-	}
 
 	put_prev_task(rq, prev);
 
@@ -2476,9 +2432,6 @@ static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued)
 
 	update_curr_rt(rq);
 
-	if (rq->rt.rt_nr_running)
-		sched_rt_update_capacity_req(rq);
-
 	watchdog(rq, p);
 
 	/*