github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-07 14:04:54 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

ANDROID: sched: add rvh for rebalance domains

Browse Source 
Vendor scheduler may not want to rebalance between domains in some case.
New vendor hook is added for vendor to decide whether rebalance domains.

Bug: 176952463

Change-Id: Ie2edbd4b11679786096dd0170496904ae180583c
Signed-off-by: Park Bumgyu <bumgyu.park@samsung.com>
This commit is contained in:
Park Bumgyu 2021-01-08 10:25:21 +09:00 committed by Todd Kjos
parent f11e1751ad
commit e0db4801be
3 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/android/vendor_hooks.c
View File

@ -84,6 +84,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_max_freq);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_freq_table_limits);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_newidle_balance);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_nohz_balancer_kick);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_rebalance_domains);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_queue);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_migrate_queued_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_resume_cpus);

4
include/trace/hooks/sched.h
View File

@ -89,6 +89,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_sched_nohz_balancer_kick,
TP_PROTO(struct rq *rq, unsigned int *flags, int *done),
TP_ARGS(rq, flags, done), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_sched_rebalance_domains,
TP_PROTO(struct rq *rq, int *continue_balancing),
TP_ARGS(rq, continue_balancing), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_find_busiest_queue,
TP_PROTO(int dst_cpu, struct sched_group *group,
struct cpumask *env_cpus, struct rq **busiest,

4
kernel/sched/fair.c
View File

@ -10058,6 +10058,10 @@ static void rebalance_domains(struct rq *rq, enum cpu_idle_type idle)
int need_serialize, need_decay = 0;
u64 max_cost = 0;
trace_android_rvh_sched_rebalance_domains(rq, &continue_balancing);
if (!continue_balancing)
return;
rcu_read_lock();
for_each_domain(cpu, sd) {
/*