1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * RT-Mutexes: blocking mutual exclusion locks with PI support
 4 *
 5 * started by Ingo Molnar and Thomas Gleixner:
 6 *
 7 *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
 8 *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
 9 *
10 * This file contains macros used solely by rtmutex.c. Debug version.
11 */
12
13extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
14extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter);
15extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key);
16extern void debug_rt_mutex_lock(struct rt_mutex *lock);
17extern void debug_rt_mutex_unlock(struct rt_mutex *lock);
18extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock,
19				      struct task_struct *powner);
20extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock);
21extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk,
22				    struct rt_mutex_waiter *waiter,
23				    struct rt_mutex *lock);
24extern void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter);
25# define debug_rt_mutex_reset_waiter(w)			\
26	do { (w)->deadlock_lock = NULL; } while (0)
27
28static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
29						  enum rtmutex_chainwalk walk)
30{
31	return (waiter != NULL);
32}
33
34static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
35{
36	debug_rt_mutex_print_deadlock(w);
37}