Lines Matching +full:lock +full:- +full:less

1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
47  * Therefore, except for special cases, like non-temporal memory accesses or
63  * The open-coded number is used instead of the symbolic expression to
82  * atomic_subtract_char(P, V)	(*(u_char *)(P) -= (V))
87  * atomic_subtract_short(P, V)	(*(u_short *)(P) -= (V))
92  * atomic_subtract_int(P, V)	(*(u_int *)(P) -= (V))
99  * atomic_subtract_long(P, V)	(*(u_long *)(P) -= (V))
105  * Always use lock prefixes.  The result is slightly less optimal for
106  * UP systems, but it matters less now, and sometimes UP is emulated
117 	__asm __volatile("lock; " OP			\
126 	__asm __volatile("lock; " OP			\
146  * Returns 0 on failure, non-zero on success.
155 	" lock; cmpxchg %3,%1 ;	"			\
171 	" lock; cmpxchg %3,%1 ;		"		\
195 	" lock; xaddl	%0,%1 ;		"  in atomic_fetchadd_int()
212 	" lock;	xaddq	%0,%1 ;		"  in atomic_fetchadd_long()
226 	" lock;	btsl	%2,%1 ;		"  in atomic_testandset_int()
241 	" lock;	btsq	%2,%1 ;		"  in atomic_testandset_long()
256 	" lock;	btrl	%2,%1 ;		"  in atomic_testandclear_int()
271 	" lock;	btrq	%2,%1 ;		"  in atomic_testandclear_long()
286  * consistent fences in SMP kernels.  We use "lock addl $0,mem" for a
289  * special address for "mem".  In the kernel, we use a private per-cpu
291  * (-8(%rsp)).
298 	__asm __volatile("lock; addl $0,%%gs:%c0"  in __storeload_barrier()
301 	__asm __volatile("lock; addl $0,-8(%%rsp)" : : : "memory", "cc");  in __storeload_barrier()
470 /* Operations on 8-bit bytes. */
492 /* Operations on 16-bit words. */
514 /* Operations on 32-bit double words. */
541 /* Operations on 64-bit quad words. */