diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index c953faf0b674..43dbf97dacf0 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -52,6 +52,7 @@ #include #include #include +#include /* * Export tracepoints that act as a bare tracehook (ie: have no trace event @@ -243,3 +244,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_typec_tcpm_adj_current_limit); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_logbuf); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tune_scan_type); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tune_swappiness); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_psi_event); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_psi_group); diff --git a/include/trace/hooks/psi.h b/include/trace/hooks/psi.h new file mode 100644 index 000000000000..1cbdaef6dfa7 --- /dev/null +++ b/include/trace/hooks/psi.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM psi + +#define TRACE_INCLUDE_PATH trace/hooks + +#if !defined(_TRACE_HOOK_PSI_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_HOOK_PSI_H + +#include +#include +#include + +#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS) + +DECLARE_HOOK(android_vh_psi_event, + TP_PROTO(struct psi_trigger *t), + TP_ARGS(t)); + +DECLARE_HOOK(android_vh_psi_group, + TP_PROTO(struct psi_group *group), + TP_ARGS(group)); + +#endif + +#endif /* _TRACE_HOOK_PSI_H */ + +/* This part must be outside protection */ +#include diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c index fcc46032ddde..29cb3245c67e 100644 --- a/kernel/sched/psi.c +++ b/kernel/sched/psi.c @@ -142,6 +142,8 @@ #include #include "sched.h" +#include + static int psi_bug __read_mostly; DEFINE_STATIC_KEY_FALSE(psi_disabled); @@ -533,12 +535,16 @@ static u64 update_triggers(struct psi_group *group, u64 now) if (now < t->last_event_time + t->win.size) continue; + trace_android_vh_psi_event(t); + /* Generate an event */ if (cmpxchg(&t->event, 0, 1) == 0) wake_up_interruptible(&t->event_wait); t->last_event_time = now; } + trace_android_vh_psi_group(group); + if (new_stall) memcpy(group->polling_total, total, sizeof(group->polling_total));