sched: Add tunables for static cpu and cluster cost

Add per-cpu tunable to set the extra cost to use a CPU that is idle.
Add the same for a cluster.

Change-Id: I4aa53f3c42c963df7abc7480980f747f0413d389
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
[joonwoop@codeaurora.org: omitted changes for qhmp*.[c,h]  stripped out
 CONFIG_SCHED_QHMP in drivers/base/cpu.c and include/linux/sched.h]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1150d8665ac8..7b874fb5ebcd 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1168,6 +1168,32 @@ static inline void clear_hmp_request(int cpu)
 	}
 }
 
+int sched_set_static_cpu_pwr_cost(int cpu, unsigned int cost)
+{
+	struct rq *rq = cpu_rq(cpu);
+
+	rq->static_cpu_pwr_cost = cost;
+	return 0;
+}
+
+unsigned int sched_get_static_cpu_pwr_cost(int cpu)
+{
+	return cpu_rq(cpu)->static_cpu_pwr_cost;
+}
+
+int sched_set_static_cluster_pwr_cost(int cpu, unsigned int cost)
+{
+	struct rq *rq = cpu_rq(cpu);
+
+	rq->static_cluster_pwr_cost = cost;
+	return 0;
+}
+
+unsigned int sched_get_static_cluster_pwr_cost(int cpu)
+{
+	return cpu_rq(cpu)->static_cluster_pwr_cost;
+}
+
 #else
 
 static inline int got_boost_kick(void)
@@ -9398,6 +9424,9 @@ void __init sched_init(void)
 		rq->cur_irqload = 0;
 		rq->avg_irqload = 0;
 		rq->irqload_ts = 0;
+		rq->static_cpu_pwr_cost = 0;
+		rq->static_cluster_pwr_cost = 0;
+
 #ifdef CONFIG_SCHED_FREQ_INPUT
 		rq->curr_runnable_sum = rq->prev_runnable_sum = 0;
 		rq->old_busy_time = 0;