| Message ID | 1555443521-579-3-git-send-email-thara.gopinath@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Introduce Thermal Pressure | expand |
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 8213ff6..c5454d3 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -23,6 +23,7 @@ #include "sched.h" #include <trace/events/sched.h> +#include <linux/sched/thermal.h> /* * Targeted preemption latency for CPU-bound tasks: @@ -7967,6 +7968,9 @@ static void update_cpu_capacity(struct sched_domain *sd, int cpu) if (!capacity) capacity = 1; + capacity *= sched_get_thermal_pressure(cpu); + capacity >>= SCHED_CAPACITY_SHIFT; + cpu_rq(cpu)->cpu_capacity = capacity; sdg->sgc->capacity = capacity; sdg->sgc->min_capacity = capacity;
cpu_capacity relflects the maximum available capacity of a cpu. Thermal pressure on a cpu means this maximum available capacity is reduced. This patch reduces the average thermal pressure for a cpu from its maximum available capacity so that cpu_capacity reflects the actual available capacity. Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org> --- kernel/sched/fair.c | 4 ++++ 1 file changed, 4 insertions(+) -- 2.1.4