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ANDROID: sched: Add vendor hook for update_load_sum

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vendor may have the need to modify update_load_sum function

Bug: 344826816
Bug: 181105055
Change-Id: I35964977a4b8917c62773d48a37340f880774e38
Signed-off-by: Chungkai Mei <chungkai@google.com>
(cherry picked from commit 984523c368423410bf53ca4c68402897d160c5dd)
(cherry picked from commit 0d97bca80a)
[Trivial conflict in include/trace/hooks/sched.h and vendor_hooks.c due
to new code added and code ordering]
Signed-off-by: Qais Yousef <qyousef@google.com>
This commit is contained in:
Chungkai Mei 2023-11-02 05:31:05 +00:00 committed by John Stultz
parent cfb8030501
commit 5cb12b53e1
3 changed files with 9 additions and 0 deletions
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4
include/trace/hooks/sched.h
View File

@ -450,6 +450,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_update_blocked_fair,
TP_PROTO(struct rq *rq),
TP_ARGS(rq), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_update_load_sum,
TP_PROTO(struct sched_avg *sa, u64 *delta, unsigned int *sched_pelt_lshift),
TP_ARGS(sa, delta, sched_pelt_lshift), 1);
struct sched_attr;
DECLARE_HOOK(android_vh_set_sugov_sched_attr,

4
kernel/sched/pelt.c
View File

@ -24,6 +24,8 @@
* Author: Vincent Guittot <vincent.guittot@linaro.org>
*/
#include <trace/hooks/sched.h>
/*
* Approximate:
* val * y^n, where y^32 ~= 0.5 (~1 scheduling period)
@ -202,6 +204,8 @@ ___update_load_sum(u64 now, struct sched_avg *sa,
sa->last_update_time += delta << 10;
trace_android_rvh_update_load_sum(sa, &delta, &sched_pelt_lshift);
/*
* running is a subset of runnable (weight) so running can't be set if
* runnable is clear. But there are some corner cases where the current

1
kernel/sched/vendor_hooks.c
View File

@ -111,6 +111,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_context_switch);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmput);
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_sum);
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);