xref: /titanic_44/usr/src/lib/libtnfprobe/sparc_locks.s (revision fb3fb4f3d76d55b64440afd0af72775dfad3bd1d)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22#pragma ident	"%Z%%M%	%I%	%E% SMI"
23/*
24 *	Copyright (c) 1994, by Sun Microsytems, Inc.
25 */
26
27#include <sys/asm_linkage.h>
28
29	.file		__FILE__
30/*
31 * int tnfw_b_get_lock(tnf_byte_lock_t *);
32 */
33	ENTRY(tnfw_b_get_lock)
34	ldstub	[%o0], %o1
35	jmpl	%o7+8, %g0
36	mov	%o1, %o0
37	SET_SIZE(tnfw_b_get_lock)
38
39/*
40 * void tnfw_b_clear_lock(tnf_byte_lock_t *);
41 */
42	ENTRY(tnfw_b_clear_lock)
43	jmpl	%o7+8, %g0
44	stb	%g0, [%o0]
45	SET_SIZE(tnfw_b_clear_lock)
46
47/*
48 * u_long tnfw_b_atomic_swap(u_long *, u_long);
49 */
50	ENTRY(tnfw_b_atomic_swap)
51	swap	[%o0], %o1
52	jmpl	%o7+8, %g0
53	mov	%o1, %o0
54	SET_SIZE(tnfw_b_atomic_swap)
55