linux-kernel - [Patch v6 2/7] sched: Add hook to read per cpu thermal pressure.

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Date:   Wed, 11 Dec 2019 23:11:43 -0500
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     mingo@...hat.com, peterz@...radead.org, ionela.voinescu@....com,
        vincent.guittot@...aro.org, rui.zhang@...el.com,
        qperret@...gle.com, daniel.lezcano@...aro.org,
        viresh.kumar@...aro.org
Cc:     linux-kernel@...r.kernel.org, amit.kachhap@...il.com,
        javi.merino@...nel.org, amit.kucheria@...durent.com
Subject: [Patch v6 2/7] sched: Add hook to read per cpu thermal pressure.

Introduce arch_scale_thermal_capacity to retrieve per cpu thermal
pressure.

Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
---
 include/linux/sched/topology.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index f341163..f1e22f9 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -225,6 +225,14 @@ unsigned long arch_scale_cpu_capacity(int cpu)
 }
 #endif
 
+#ifndef arch_scale_thermal_capacity
+static __always_inline
+unsigned long arch_scale_thermal_capacity(int cpu)
+{
+	return 0;
+}
+#endif
+
 static inline int task_node(const struct task_struct *p)
 {
 	return cpu_to_node(task_cpu(p));
-- 
2.1.4