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ANDROID: Add vendor hooks to the scheduler

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Add vendor hooks for vendor-specific scheduling.

  android_rvh_select_task_rq_rt:
    To perform vendor-specific RT task placement.

  android_rvh_select_fallback_rq:
    To restrict cpu usage.

  android_rvh_scheduler_tick:
    To collect periodic scheduling information and to schedule tasks.

  android_rvh_enqueue_tas/android_rvh_dequeue_task:
    For vendor to be aware of the task schedule in/out.

  android_rvh_can_migrate_task:
    To limit task migration based on vendor requirements.

  android_rvh_find_lowest_rq:
    To find the lowest rq for RT task with vendor-specific way.

Bug: 155241766

Change-Id: I926458b0a911d564e5932e200125b12406c2deee
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>
This commit is contained in:
Park Bumgyu
2020-06-22 16:33:32 +09:00
committed by Quentin Perret
parent bd98af7d21
commit 16330b3560
5 changed files with 76 additions and 1 deletions
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37
include/trace/hooks/sched.h
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@@ -15,8 +15,45 @@ struct task_struct;
DECLARE_RESTRICTED_HOOK(android_rvh_select_task_rq_fair,
TP_PROTO(struct task_struct *p, int prev_cpu, int sd_flag, int wake_flags, int *new_cpu),
TP_ARGS(p, prev_cpu, sd_flag, wake_flags, new_cpu), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_select_task_rq_rt,
TP_PROTO(struct task_struct *p, int prev_cpu, int sd_flag, int wake_flags, int *new_cpu),
TP_ARGS(p, prev_cpu, sd_flag, wake_flags, new_cpu), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_select_fallback_rq,
TP_PROTO(int cpu, struct task_struct *p, int *new_cpu),
TP_ARGS(cpu, p, new_cpu), 1);
struct rq;
DECLARE_RESTRICTED_HOOK(android_rvh_scheduler_tick,
TP_PROTO(struct rq *rq),
TP_ARGS(rq), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_enqueue_task,
TP_PROTO(struct rq *rq, struct task_struct *p),
TP_ARGS(rq, p), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_dequeue_task,
TP_PROTO(struct rq *rq, struct task_struct *p),
TP_ARGS(rq, p), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_can_migrate_task,
TP_PROTO(struct task_struct *p, int dst_cpu, int *can_migrate),
TP_ARGS(p, dst_cpu, can_migrate), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_find_lowest_rq,
TP_PROTO(struct task_struct *p, struct cpumask *local_cpu_mask,
int *lowest_cpu),
TP_ARGS(p, local_cpu_mask, lowest_cpu), 1);
#else
#define trace_android_rvh_select_task_rq_fair(p, prev_cpu, sd_flag, wake_flags, new_cpu)
#define trace_android_rvh_select_task_rq_rt(p, prev_cpu, sd_flag, wake_flags, new_cpu)
#define trace_android_rvh_select_fallback_rq(cpu, p, dest_cpu)
#define trace_android_rvh_scheduler_tick(rq)
#define trace_android_rvh_enqueue_task(rq, p)
#define trace_android_rvh_dequeue_task(rq, p)
#define trace_android_rvh_can_migrate_task(p, dst_cpu, can_migrate)
#define trace_android_rvh_find_lowest_rq(p, local_cpu_mask, lowest_cpu)
#endif
#endif /* _TRACE_HOOK_SCHED_H */
/* This part must be outside protection */