From: Thara Gopinath <thara.gopinath@linaro.org>
Date: Sat, 22 Feb 2020 00:52:06 +0000 (-0500)
Subject: sched/topology: Add callback to read per CPU thermal pressure
X-Git-Tag: v5.7-rc1~179^2~33
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=36a0df85d2e85e1929e8cd607e19243e5a2754e7;p=thirdparty%2Fkernel%2Flinux.git

sched/topology: Add callback to read per CPU thermal pressure

Introduce the arch_scale_thermal_pressure() callback to retrieve per CPU thermal
pressure.

Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200222005213.3873-3-thara.gopinath@linaro.org
---

diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index f341163fedc90..af9319e4cfb96 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_pressure
+static __always_inline
+unsigned long arch_scale_thermal_pressure(int cpu)
+{
+	return 0;
+}
+#endif
+
 static inline int task_node(const struct task_struct *p)
 {
 	return cpu_to_node(task_cpu(p));