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ANDROID: sched: Add vendor hook for util-update related functions

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Vendor may have the need to implement their own util tracking.

Bug: 297343949
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I973902e6ff82a85ecd029ac5a78692d629df1ebe
This commit is contained in:
Rick Yiu 2022-01-07 18:31:06 +08:00 committed by Treehugger Robot
parent e08c5de06e
commit 6d97f75abc
3 changed files with 35 additions and 0 deletions
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20
include/trace/hooks/sched.h
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@ -402,6 +402,26 @@ 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_attach_entity_load_avg,
TP_PROTO(struct cfs_rq *cfs_rq, struct sched_entity *se),
TP_ARGS(cfs_rq, se), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_detach_entity_load_avg,
TP_PROTO(struct cfs_rq *cfs_rq, struct sched_entity *se),
TP_ARGS(cfs_rq, se), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_update_load_avg,
TP_PROTO(u64 now, struct cfs_rq *cfs_rq, struct sched_entity *se),
TP_ARGS(now, cfs_rq, se), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_remove_entity_load_avg,
TP_PROTO(struct cfs_rq *cfs_rq, struct sched_entity *se),
TP_ARGS(cfs_rq, se), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_update_blocked_fair,
TP_PROTO(struct rq *rq),
TP_ARGS(rq), 1);
#endif /* _TRACE_HOOK_SCHED_H */
/* This part must be outside protection */
#include <trace/define_trace.h>

10
kernel/sched/fair.c
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@ -4129,6 +4129,8 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
else
se->avg.load_sum = 1;
trace_android_rvh_attach_entity_load_avg(cfs_rq, se);
enqueue_load_avg(cfs_rq, se);
cfs_rq->avg.util_avg += se->avg.util_avg;
cfs_rq->avg.util_sum += se->avg.util_sum;
@ -4152,6 +4154,8 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
*/
static void detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
{
trace_android_rvh_detach_entity_load_avg(cfs_rq, se);
dequeue_load_avg(cfs_rq, se);
sub_positive(&cfs_rq->avg.util_avg, se->avg.util_avg);
sub_positive(&cfs_rq->avg.util_sum, se->avg.util_sum);
@ -4196,6 +4200,8 @@ static inline void update_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
decayed = update_cfs_rq_load_avg(now, cfs_rq);
decayed |= propagate_entity_load_avg(se);
trace_android_rvh_update_load_avg(now, cfs_rq, se);
if (!se->avg.last_update_time && (flags & DO_ATTACH)) {
/*
@ -4253,6 +4259,8 @@ static void remove_entity_load_avg(struct sched_entity *se)
sync_entity_load_avg(se);
trace_android_rvh_remove_entity_load_avg(cfs_rq, se);
raw_spin_lock_irqsave(&cfs_rq->removed.lock, flags);
++cfs_rq->removed.nr;
cfs_rq->removed.util_avg += se->avg.util_avg;
@ -8756,6 +8764,8 @@ static bool __update_blocked_fair(struct rq *rq, bool *done)
bool decayed = false;
int cpu = cpu_of(rq);
trace_android_rvh_update_blocked_fair(rq);
/*
* Iterates the task_group tree in a bottom up fashion, see
* list_add_leaf_cfs_rq() for details.

5
kernel/sched/vendor_hooks.c
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@ -102,3 +102,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmput);
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);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_attach_entity_load_avg);
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);