1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #ifndef _ASM_ATOMIC_H
28*0Sstevel@tonic-gate #define _ASM_ATOMIC_H
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
31*0Sstevel@tonic-gate
32*0Sstevel@tonic-gate #include <sys/types.h>
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate #ifdef __cplusplus
35*0Sstevel@tonic-gate extern "C" {
36*0Sstevel@tonic-gate #endif
37*0Sstevel@tonic-gate
38*0Sstevel@tonic-gate #if !defined(__lint) && defined(__GNUC__)
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #if defined(__amd64)
41*0Sstevel@tonic-gate
atomic_or_long(ulong_t * target,ulong_t bits)42*0Sstevel@tonic-gate extern __inline__ void atomic_or_long(ulong_t *target, ulong_t bits)
43*0Sstevel@tonic-gate {
44*0Sstevel@tonic-gate __asm__ __volatile__(
45*0Sstevel@tonic-gate "lock; orq %1, (%0)"
46*0Sstevel@tonic-gate : /* no output */
47*0Sstevel@tonic-gate : "r" (target), "r" (bits));
48*0Sstevel@tonic-gate }
49*0Sstevel@tonic-gate
atomic_and_long(ulong_t * target,ulong_t bits)50*0Sstevel@tonic-gate extern __inline__ void atomic_and_long(ulong_t *target, ulong_t bits)
51*0Sstevel@tonic-gate {
52*0Sstevel@tonic-gate __asm__ __volatile__(
53*0Sstevel@tonic-gate "lock; andq %1, (%0)"
54*0Sstevel@tonic-gate : /* no output */
55*0Sstevel@tonic-gate : "r" (target), "r" (bits));
56*0Sstevel@tonic-gate }
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate #ifdef notdef
cas64(uint64_t * target,uint64_t cmp,uint64_t newval)59*0Sstevel@tonic-gate extern __inline__ uint64_t cas64(uint64_t *target, uint64_t cmp,
60*0Sstevel@tonic-gate uint64_t newval)
61*0Sstevel@tonic-gate {
62*0Sstevel@tonic-gate uint64_t retval;
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate __asm__ __volatile__(
65*0Sstevel@tonic-gate "movq %2, %%rax; lock; cmpxchgq %3, (%1)"
66*0Sstevel@tonic-gate : "=a" (retval)
67*0Sstevel@tonic-gate : "r" (target), "r" (cmp), "r" (newval));
68*0Sstevel@tonic-gate return (retval);
69*0Sstevel@tonic-gate }
70*0Sstevel@tonic-gate #endif
71*0Sstevel@tonic-gate
72*0Sstevel@tonic-gate #elif defined(__i386)
73*0Sstevel@tonic-gate
74*0Sstevel@tonic-gate extern __inline__ void atomic_or_long(ulong_t *target, ulong_t bits)
75*0Sstevel@tonic-gate {
76*0Sstevel@tonic-gate __asm__ __volatile__(
77*0Sstevel@tonic-gate "lock; orl %1, (%0)"
78*0Sstevel@tonic-gate : /* no output */
79*0Sstevel@tonic-gate : "r" (target), "r" (bits));
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate extern __inline__ void atomic_and_long(ulong_t *target, ulong_t bits)
83*0Sstevel@tonic-gate {
84*0Sstevel@tonic-gate __asm__ __volatile__(
85*0Sstevel@tonic-gate "lock; andl %1, (%0)"
86*0Sstevel@tonic-gate : /* no output */
87*0Sstevel@tonic-gate : "r" (target), "r" (bits));
88*0Sstevel@tonic-gate }
89*0Sstevel@tonic-gate
90*0Sstevel@tonic-gate #else
91*0Sstevel@tonic-gate #error "port me"
92*0Sstevel@tonic-gate #endif
93*0Sstevel@tonic-gate
94*0Sstevel@tonic-gate #endif /* !__lint && __GNUC__ */
95*0Sstevel@tonic-gate
96*0Sstevel@tonic-gate #ifdef __cplusplus
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate #endif
99*0Sstevel@tonic-gate
100*0Sstevel@tonic-gate #endif /* _ASM_ATOMIC_H */
101