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ANDROID: sched: Add vendor hook for util_fits_cpu

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Vendor may have the need to implement their own util_fits_cpu
function. This hook is needed until we get the rest of our work upstream
merged to improve definition of migration margin.

Bug: 344826816
Bug: 261704404
Change-Id: I0318f6cadd5c45a37f1acafdded479b25e520e6b
Signed-off-by: Chungkai Mei <chungkai@google.com>
(cherry picked from commit ec3c9a1702386494c404a861467eb9cf9b10e9b5)
Signed-off-by: Qais Yousef <qyousef@google.com>
This commit is contained in:
Chungkai Mei
2023-11-14 09:45:28 +00:00
committed by Treehugger Robot
parent 401be11d93
commit 5b56ab949a
3 changed files with 13 additions and 1 deletions
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5
include/trace/hooks/sched.h
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@@ -513,6 +513,11 @@ 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_util_fits_cpu,
TP_PROTO(unsigned long util, unsigned long uclamp_min, unsigned long uclamp_max,
int cpu, bool *fits, bool *done),
TP_ARGS(util, uclamp_min, uclamp_max, cpu, fits, done), 1);
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_SCHED_H */

7
kernel/sched/fair.c
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@@ -5171,7 +5171,12 @@ static inline int util_fits_cpu(unsigned long util,
{
unsigned long capacity = capacity_of(cpu);
unsigned long capacity_orig;
bool fits, uclamp_max_fits;
bool fits, uclamp_max_fits, done = false;
trace_android_rvh_util_fits_cpu(util, uclamp_min, uclamp_max, cpu, &fits, &done);
if (done)
return fits;
/*
* Check if the real util fits without any uclamp boost/cap applied.

2
kernel/sched/vendor_hooks.c
View File

@@ -132,4 +132,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_rt_rq_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_sugov_sched_attr);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_iowait);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_uclamp_validate);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_util_fits_cpu);