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ANDROID: sched: Add vendor hook for rt util update

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Vendor may have need to track rt util.

The hook is expected to always be called in set_next_task_rt() unlike
update_rt_rq_load_avg().

Bug: 344826816
Bug: 201261299
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I2f4e5142c6bc8574ee3558042e1fb0dae13b702d
(cherry picked from commit 2490ab50e7)
[Trivial conflict in include/trace/hooks/sched.h due to new code added.
And in vendor_hooks.c due to code ordering.]
Signed-off-by: Qais Yousef <qyousef@google.com>
This commit is contained in:
Rick Yiu 2022-03-22 22:22:09 +08:00 committed by John Stultz
parent 1a7550f7c9
commit 9ad961ed05
3 changed files with 10 additions and 0 deletions
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4
include/trace/hooks/sched.h
View File

@ -455,6 +455,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_set_iowait,
TP_PROTO(struct task_struct *p, struct rq *rq, int *should_iowait_boost),
TP_ARGS(p, rq, should_iowait_boost), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_update_rt_rq_load_avg,
TP_PROTO(u64 now, struct rq *rq, struct task_struct *tsk, int running),
TP_ARGS(now, rq, tsk, running), 1);
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_SCHED_H */

5
kernel/sched/rt.c
View File

@ -1849,6 +1849,9 @@ static inline void set_next_task_rt(struct rq *rq, struct task_struct *p, bool f
if (rq->curr->sched_class != &rt_sched_class)
update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 0);
/* Should always be called unlike update_rt_rq_load_avg() */
trace_android_rvh_update_rt_rq_load_avg(rq_clock_pelt(rq), rq, p, 0);
rt_queue_push_tasks(rq);
}
@ -1918,6 +1921,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
update_curr_rt(rq);
update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 1);
trace_android_rvh_update_rt_rq_load_avg(rq_clock_pelt(rq), rq, p, 1);
/*
* The previous task needs to be made eligible for pushing
@ -2745,6 +2749,7 @@ static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued)
update_curr_rt(rq);
update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 1);
trace_android_rvh_update_rt_rq_load_avg(rq_clock_pelt(rq), rq, p, 1);
watchdog(rq, p);

1
kernel/sched/vendor_hooks.c
View File

@ -113,6 +113,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_detach_entity_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_remove_entity_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_blocked_fair);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_rt_rq_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_uclamp_validate);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_sugov_sched_attr);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_iowait);