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ANDROID: vendor_hooks: Add hooks for mutex and rwsem optimistic spin

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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>
This commit is contained in:
Liujie Xie
2023-02-14 14:42:26 +08:00
committed by Todd Kjos
parent d4d05c6e6e
commit d01f7e1269
4 changed files with 47 additions and 0 deletions
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6
drivers/android/vendor_hooks.c
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@@ -122,6 +122,9 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rtmutex_wait_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rtmutex_wait_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_opt_spin_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_opt_spin_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_can_spin_on_owner);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_read_wait_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_read_wait_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_wait_start);
@@ -131,6 +134,9 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_set_reader_owned);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_mark_wake_readers);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_up_read_end);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_up_write_end);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_opt_spin_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_opt_spin_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_can_spin_on_owner);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sched_show_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_shmem_alloc_page);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpu_idle_enter);