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Subject[PATCH RFC v2 3/4] sched: expose capacity_of in sched.h
Date
capacity_of is of use to a cpu frequency scaling policy based on cfs
load tracking and cpu capacity utilization metrics. Expose this call in
sched.h so it can be used in such a policy.

Signed-off-by: Michael Turquette <mturquette@linaro.org>
---
Changes in v2:
Do not expose get_cpu_usage or capacity_orig_of in sched.h
Expose capacity_of instead

kernel/sched/fair.c | 5 -----
kernel/sched/sched.h | 5 +++++
2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 75aec8d..d27ded9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4361,11 +4361,6 @@ static unsigned long target_load(int cpu, int type)
return max(rq->cpu_load[type-1], total);
}

-static unsigned long capacity_of(int cpu)
-{
- return cpu_rq(cpu)->cpu_capacity;
-}
-
static unsigned long capacity_orig_of(int cpu)
{
return cpu_rq(cpu)->cpu_capacity_orig;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e0e1299..4925bc4 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1396,6 +1396,11 @@ unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
}
#endif

+static inline unsigned long capacity_of(int cpu)
+{
+ return cpu_rq(cpu)->cpu_capacity;
+}
+
static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
{
rq->rt_avg += rt_delta * arch_scale_freq_capacity(NULL, cpu_of(rq));
--
1.9.1


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