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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 /kernel/sched/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 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 6ef3a59612a9..255b29d5112a 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1272,6 +1272,11 @@ static inline bool is_max_capacity_cpu(int cpu) return cpu_max_possible_capacity(cpu) == max_possible_capacity; } +static inline bool is_min_capacity_cpu(int cpu) +{ + return cpu_max_possible_capacity(cpu) == min_max_possible_capacity; +} + /* * 'load' is in reference to "best cpu" at its best frequency. * Scale that in reference to a given cpu, accounting for how bad it is |