xref: /titanic_52/usr/src/lib/libtnfprobe/sparc_locks.s (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate/*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate#pragma ident	"%Z%%M%	%I%	%E% SMI"
23*7c478bd9Sstevel@tonic-gate/*
24*7c478bd9Sstevel@tonic-gate *	Copyright (c) 1994, by Sun Microsytems, Inc.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate#include <sys/asm_linkage.h>
28*7c478bd9Sstevel@tonic-gate
29*7c478bd9Sstevel@tonic-gate	.file		__FILE__
30*7c478bd9Sstevel@tonic-gate/*
31*7c478bd9Sstevel@tonic-gate * int tnfw_b_get_lock(tnf_byte_lock_t *);
32*7c478bd9Sstevel@tonic-gate */
33*7c478bd9Sstevel@tonic-gate	ENTRY(tnfw_b_get_lock)
34*7c478bd9Sstevel@tonic-gate	ldstub	[%o0], %o1
35*7c478bd9Sstevel@tonic-gate	jmpl	%o7+8, %g0
36*7c478bd9Sstevel@tonic-gate	mov	%o1, %o0
37*7c478bd9Sstevel@tonic-gate	SET_SIZE(tnfw_b_get_lock)
38*7c478bd9Sstevel@tonic-gate
39*7c478bd9Sstevel@tonic-gate/*
40*7c478bd9Sstevel@tonic-gate * void tnfw_b_clear_lock(tnf_byte_lock_t *);
41*7c478bd9Sstevel@tonic-gate */
42*7c478bd9Sstevel@tonic-gate	ENTRY(tnfw_b_clear_lock)
43*7c478bd9Sstevel@tonic-gate	jmpl	%o7+8, %g0
44*7c478bd9Sstevel@tonic-gate	stb	%g0, [%o0]
45*7c478bd9Sstevel@tonic-gate	SET_SIZE(tnfw_b_clear_lock)
46*7c478bd9Sstevel@tonic-gate
47*7c478bd9Sstevel@tonic-gate/*
48*7c478bd9Sstevel@tonic-gate * u_long tnfw_b_atomic_swap(u_long *, u_long);
49*7c478bd9Sstevel@tonic-gate */
50*7c478bd9Sstevel@tonic-gate	ENTRY(tnfw_b_atomic_swap)
51*7c478bd9Sstevel@tonic-gate	swap	[%o0], %o1
52*7c478bd9Sstevel@tonic-gate	jmpl	%o7+8, %g0
53*7c478bd9Sstevel@tonic-gate	mov	%o1, %o0
54*7c478bd9Sstevel@tonic-gate	SET_SIZE(tnfw_b_atomic_swap)
55