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| author | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2018-02-09 13:53:04 +0530 |
|---|---|---|
| committer | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2018-03-06 19:46:33 +0530 |
| commit | 3c443961073c821ab50bc1ded0558dd7bf6aeac6 (patch) | |
| tree | 9f49651513bc85ee098f4041bf6b79bf3779c97e /include/linux/sched.h | |
| parent | a337c17cebeadebddd57cfae9d7953567969be06 (diff) | |
sched: add sched_get_cpu_last_busy_time() API
sched_get_cpu_last_busy_time() returns the last time stamp when
a given CPU is busy with more than 2 runnable tasks or has load
greater than 50% of it's max capacity. The LPM driver can make
use of this API and create a policy to prevent a recently loaded
CPU entering deep sleep state.
This API is implemented only for the higher capacity CPUs in
the system. It returns 0 for other CPUs.
Change-Id: I97ef47970a71647f4f55f21165d0cc1351770a53
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 92b59a1c2010..0bfa46261687 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -182,6 +182,7 @@ extern void sched_update_nr_prod(int cpu, long delta, bool inc); extern void sched_get_nr_running_avg(int *avg, int *iowait_avg, int *big_avg, unsigned int *max_nr, unsigned int *big_max_nr); +extern u64 sched_get_cpu_last_busy_time(int cpu); extern void calc_global_load(unsigned long ticks); |