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ANDROID: sched: Add vendor hooks for find_energy_efficient_cpu

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Add hooks for vendor specific find_energy_efficient_cpu logic.

Bug: 170507310
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I064b501017e32d4f22f8128bed8bf3a1508ab15b
(cherry picked from commit 2f108e2ec6e89609cbae32c5d13d6ad9f2e858cb)
Signed-off-by: Will McVicker <willmcvicker@google.com>
This commit is contained in:
Rick Yiu
2020-10-15 20:41:52 +08:00
committed by Quentin Perret
parent 7372c23f06
commit 147a9b3d9e
3 changed files with 11 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
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@@ -80,3 +80,4 @@ 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_find_busiest_queue);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_migrate_queued_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_energy_efficient_cpu);

5
include/trace/hooks/sched.h
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@@ -101,6 +101,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_migrate_queued_task,
struct task_struct *p, int new_cpu,
int *detached),
TP_ARGS(rq, rf, p, new_cpu, detached), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_find_energy_efficient_cpu,
TP_PROTO(struct task_struct *p, int prev_cpu, int sync, int *new_cpu),
TP_ARGS(p, prev_cpu, sync, new_cpu), 1);
#else
#define trace_android_rvh_select_task_rq_fair(p, prev_cpu, sd_flag, wake_flags, new_cpu)
#define trace_android_rvh_select_task_rq_rt(p, prev_cpu, sd_flag, wake_flags, new_cpu)
@@ -122,6 +126,7 @@ DECLARE_RESTRICTED_HOOK(android_rvh_migrate_queued_task,
#define trace_android_rvh_sched_nohz_balancer_kick(rq, flags, done)
#define trace_android_rvh_find_busiest_queue(dst_cpu, group, env_cpus, busiest, done)
#define trace_android_rvh_migrate_queued_task(rq, rf, p, new_cpu, detached)
#define trace_android_rvh_find_energy_efficient_cpu(p, prev_cpu, sync, new_cpu)
#endif
#endif /* _TRACE_HOOK_SCHED_H */
/* This part must be outside protection */

5
kernel/sched/fair.c
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@@ -6592,6 +6592,11 @@ static int find_energy_efficient_cpu(struct task_struct *p, int prev_cpu, int sy
struct cpuidle_state *idle;
struct sched_domain *sd;
struct perf_domain *pd;
int new_cpu = INT_MAX;
trace_android_rvh_find_energy_efficient_cpu(p, prev_cpu, sync, &new_cpu);
if (new_cpu != INT_MAX)
return new_cpu;
rcu_read_lock();
pd = rcu_dereference(rd->pd);