| 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_ */ |