Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * it under the terms of the GNU General Public License as published by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * the Free Software Foundation; either version 2 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * This program is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * GNU General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * Authors: Waiman Long <longman@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #ifndef __LOCKING_LOCK_EVENTS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define __LOCKING_LOCK_EVENTS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) enum lock_events {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "lock_events_list.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	lockevent_num,	/* Total number of lock event counts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	LOCKEVENT_reset_cnts = lockevent_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #ifdef CONFIG_LOCK_EVENT_COUNTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  * Per-cpu counters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) DECLARE_PER_CPU(unsigned long, lockevents[lockevent_num]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)  * Increment the statistical counters. use raw_cpu_inc() because of lower
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)  * overhead and we don't care if we loose the occasional update.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static inline void __lockevent_inc(enum lock_events event, bool cond)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	if (cond)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		raw_cpu_inc(lockevents[event]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define lockevent_inc(ev)	  __lockevent_inc(LOCKEVENT_ ##ev, true)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define lockevent_cond_inc(ev, c) __lockevent_inc(LOCKEVENT_ ##ev, c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static inline void __lockevent_add(enum lock_events event, int inc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	raw_cpu_add(lockevents[event], inc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define lockevent_add(ev, c)	__lockevent_add(LOCKEVENT_ ##ev, c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #else  /* CONFIG_LOCK_EVENT_COUNTS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define lockevent_inc(ev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define lockevent_add(ev, c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define lockevent_cond_inc(ev, c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #endif /* CONFIG_LOCK_EVENT_COUNTS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #endif /* __LOCKING_LOCK_EVENTS_H */