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authorIngo Molnar <mingo@kernel.org>2020-03-06 14:26:31 +0100
committerIngo Molnar <mingo@kernel.org>2020-03-06 14:26:31 +0100
commit14533a16c46db70b8a75eda8fa633c25ac446d81 (patch)
tree05f2121243644072c6dd4d316d39c999b103a79d /kernel/sched
parentd94a9df49069ba8ff7c4aaeca1229e6471a01a15 (diff)
downloadlinux-14533a16c46db70b8a75eda8fa633c25ac446d81.tar.bz2
thermal/cpu-cooling, sched/core: Move the arch_set_thermal_pressure() API to generic scheduler code
drivers/base/arch_topology.c is only built if CONFIG_GENERIC_ARCH_TOPOLOGY=y, resulting in such build failures: cpufreq_cooling.c:(.text+0x1e7): undefined reference to `arch_set_thermal_pressure' Move it to sched/core.c instead, and keep it enabled on x86 despite us not having a arch_scale_thermal_pressure() facility there, to build-test this thing. Cc: Thara Gopinath <thara.gopinath@linaro.org> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/core.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4d76df33418e..978bf6f6e0ff 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3576,6 +3576,17 @@ unsigned long long task_sched_runtime(struct task_struct *p)
return ns;
}
+DEFINE_PER_CPU(unsigned long, thermal_pressure);
+
+void arch_set_thermal_pressure(struct cpumask *cpus,
+ unsigned long th_pressure)
+{
+ int cpu;
+
+ for_each_cpu(cpu, cpus)
+ WRITE_ONCE(per_cpu(thermal_pressure, cpu), th_pressure);
+}
+
/*
* This function gets called by the timer code, with HZ frequency.
* We call it with interrupts disabled.