1/* $NetBSD: lock.h,v 1.5 2022/07/24 20:28:32 riastradh Exp $ */
 2
 3#ifndef	_AARCH64_LOCK_H_
 4#define	_AARCH64_LOCK_H_
 5
 6#include <sys/param.h>
 7
 8#ifdef __aarch64__
 9# ifdef _HARDKERNEL
10#  ifdef SPINLOCK_BACKOFF_HOOK
11#   undef SPINLOCK_BACKOFF_HOOK
12#  endif
13#  define SPINLOCK_BACKOFF_HOOK		asm volatile("yield" ::: "memory")
14# endif
15# include <sys/common_lock.h>
16#elif defined(__arm__)
17# include <arm/lock.h>
18#endif
19
20#endif	/* _AARCH64_LOCK_H_ */