diff options
author | Ted Unangst <tedu@cvs.openbsd.org> | 2013-05-21 20:05:31 +0000 |
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committer | Ted Unangst <tedu@cvs.openbsd.org> | 2013-05-21 20:05:31 +0000 |
commit | 1223d06696f7e28ea88bca80018594fdcd57b172 (patch) | |
tree | e341da38c545b15b66d9e7a68c2b72d4935f1a68 /sys/arch/mips64/include/lock.h | |
parent | 1fb7bca1316e90db7b342fe0821eadb80b983d9f (diff) |
remove unused cpu_lock code (where it is truly unused). it is not
part of the future we have planned. middling ok from a few
Diffstat (limited to 'sys/arch/mips64/include/lock.h')
-rw-r--r-- | sys/arch/mips64/include/lock.h | 48 |
1 files changed, 1 insertions, 47 deletions
diff --git a/sys/arch/mips64/include/lock.h b/sys/arch/mips64/include/lock.h index 1d28d83757a..805128e802d 100644 --- a/sys/arch/mips64/include/lock.h +++ b/sys/arch/mips64/include/lock.h @@ -1,4 +1,4 @@ -/* $OpenBSD: lock.h,v 1.4 2010/04/21 03:03:26 deraadt Exp $ */ +/* $OpenBSD: lock.h,v 1.5 2013/05/21 20:05:30 tedu Exp $ */ /* public domain */ @@ -7,52 +7,6 @@ #include <mips64/atomic.h> -typedef volatile u_int __cpu_simple_lock_t; - -#define __SIMPLELOCK_LOCKED 1 -#define __SIMPLELOCK_UNLOCKED 0 - -static __inline__ void -__cpu_simple_lock_init(__cpu_simple_lock_t *l) -{ - *l = __SIMPLELOCK_UNLOCKED; -} - -static __inline__ void -__cpu_simple_lock(__cpu_simple_lock_t *l) -{ - __cpu_simple_lock_t old, new; - - do { - new = __SIMPLELOCK_LOCKED; - __asm__ __volatile__ - ("1:\tll\t%0, %1\n" - "\tsc\t%2, %1\n" - "\tbeqz\t%2, 1b\n" - "\t nop" : "=&r" (old) : "m" (*l), "r" (new)); - } while (old != __SIMPLELOCK_UNLOCKED); -} - -static __inline__ int -__cpu_simple_lock_try(__cpu_simple_lock_t *l) -{ - __cpu_simple_lock_t old, new = __SIMPLELOCK_LOCKED; - - __asm__ __volatile__ - ("1:\tll\t%0, %1\n" - "\tsc\t%2, %1\n" - "\tbeqz\t%2, 1b\n" - "\t nop" : "=&r" (old) : "m" (*l), "r" (new)); - - return (old == __SIMPLELOCK_UNLOCKED); -} - -static __inline__ void -__cpu_simple_unlock(__cpu_simple_lock_t *l) -{ - *l = __SIMPLELOCK_UNLOCKED; -} - #define rw_cas __cpu_cas static __inline int __cpu_cas(volatile unsigned long *addr, unsigned long old, unsigned long new) |