05b5ff11ad
These hooks help us do the following things: a) Record the number of mutex and rwsem optimistic spin. b) Monitor the time of mutex and rwsem optimistic spin. c) Make it possible if oems don't want mutex and rwsem to optimistic spin for a long time. Bug: 267565260 Change-Id: I2bee30fb17946be85e026213b481aeaeaee2459f Signed-off-by: Liujie Xie <xieliujie@oppo.com> (cherry picked from commit d01f7e1269d2651768a0bd91a88f76339a1cb427)
104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM dtask
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#define TRACE_INCLUDE_PATH trace/hooks
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#if !defined(_TRACE_HOOK_DTASK_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_HOOK_DTASK_H
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#include <trace/hooks/vendor_hooks.h>
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/*
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* Following tracepoints are not exported in tracefs and provide a
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* mechanism for vendor modules to hook and extend functionality
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*/
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#ifdef __GENKSYMS__
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#include <linux/mutex.h>
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#include <linux/rtmutex.h>
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#include <linux/rwsem.h>
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#include <linux/sched.h>
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#endif
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struct mutex;
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struct rt_mutex_base;
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struct rw_semaphore;
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struct task_struct;
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DECLARE_HOOK(android_vh_mutex_wait_start,
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TP_PROTO(struct mutex *lock),
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TP_ARGS(lock));
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DECLARE_HOOK(android_vh_mutex_wait_finish,
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TP_PROTO(struct mutex *lock),
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TP_ARGS(lock));
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DECLARE_HOOK(android_vh_mutex_init,
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TP_PROTO(struct mutex *lock),
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TP_ARGS(lock));
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DECLARE_HOOK(android_vh_mutex_opt_spin_start,
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TP_PROTO(struct mutex *lock, bool *time_out, int *cnt),
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TP_ARGS(lock, time_out, cnt));
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DECLARE_HOOK(android_vh_mutex_opt_spin_finish,
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TP_PROTO(struct mutex *lock, bool taken),
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TP_ARGS(lock, taken));
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DECLARE_HOOK(android_vh_mutex_can_spin_on_owner,
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TP_PROTO(struct mutex *lock, int *retval),
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TP_ARGS(lock, retval));
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DECLARE_HOOK(android_vh_rtmutex_wait_start,
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TP_PROTO(struct rt_mutex_base *lock),
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TP_ARGS(lock));
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DECLARE_HOOK(android_vh_rtmutex_wait_finish,
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TP_PROTO(struct rt_mutex_base *lock),
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TP_ARGS(lock));
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DECLARE_HOOK(android_vh_rwsem_read_wait_start,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_read_wait_finish,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_write_wait_start,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_write_wait_finish,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_opt_spin_start,
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TP_PROTO(struct rw_semaphore *sem, bool *time_out, int *cnt, bool chk_only),
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TP_ARGS(sem, time_out, cnt, chk_only));
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DECLARE_HOOK(android_vh_rwsem_opt_spin_finish,
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TP_PROTO(struct rw_semaphore *sem, bool taken),
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TP_ARGS(sem, taken));
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DECLARE_HOOK(android_vh_rwsem_can_spin_on_owner,
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TP_PROTO(struct rw_semaphore *sem, bool *ret),
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TP_ARGS(sem, ret));
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DECLARE_HOOK(android_vh_sched_show_task,
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TP_PROTO(struct task_struct *task),
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TP_ARGS(task));
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struct mutex_waiter;
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DECLARE_HOOK(android_vh_alter_mutex_list_add,
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TP_PROTO(struct mutex *lock,
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struct mutex_waiter *waiter,
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struct list_head *list,
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bool *already_on_list),
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TP_ARGS(lock, waiter, list, already_on_list));
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DECLARE_HOOK(android_vh_mutex_unlock_slowpath,
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TP_PROTO(struct mutex *lock),
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TP_ARGS(lock));
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DECLARE_HOOK(android_vh_record_mutex_lock_starttime,
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TP_PROTO(struct task_struct *tsk, unsigned long settime_jiffies),
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TP_ARGS(tsk, settime_jiffies));
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DECLARE_HOOK(android_vh_record_rtmutex_lock_starttime,
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TP_PROTO(struct task_struct *tsk, unsigned long settime_jiffies),
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TP_ARGS(tsk, settime_jiffies));
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DECLARE_HOOK(android_vh_record_rwsem_lock_starttime,
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TP_PROTO(struct task_struct *tsk, unsigned long settime_jiffies),
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TP_ARGS(tsk, settime_jiffies));
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DECLARE_HOOK(android_vh_record_pcpu_rwsem_starttime,
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TP_PROTO(struct task_struct *tsk, unsigned long settime_jiffies),
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TP_ARGS(tsk, settime_jiffies));
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#endif /* _TRACE_HOOK_DTASK_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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