2 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
4 * @APPLE_LICENSE_HEADER_START@
6 * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
8 * This file contains Original Code and/or Modifications of Original Code
9 * as defined in and that are subject to the Apple Public Source License
10 * Version 2.0 (the 'License'). You may not use this file except in
11 * compliance with the License. Please obtain a copy of the License at
12 * http://www.opensource.apple.com/apsl/ and read it before using this
15 * The Original Code and all software distributed under the License are
16 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
17 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
18 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
20 * Please see the License for the specific language governing rights and
21 * limitations under the License.
23 * @APPLE_LICENSE_HEADER_END@
26 * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991
29 * Permission to use, copy, modify, and distribute this software and
30 * its documentation for any purpose and without fee is hereby granted,
31 * provided that the above copyright notice appears in all copies and
32 * that both the copyright notice and this permission notice appear in
33 * supporting documentation.
35 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
36 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
37 * FOR A PARTICULAR PURPOSE.
39 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
40 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
41 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
42 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
43 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
47 #define __APPLE_API_PRIVATE
48 #include <machine/cpu_capabilities.h>
49 #undef __APPLE_API_PRIVATE
51 #if defined(__ppc__) || defined(__ppc64__)
53 #import <architecture/ppc/asm_help.h>
54 #import <architecture/ppc/pseudo_inst.h>
56 /* void spin_lock(int *p);
58 * Lock the lock pointed to by `p'. Spin (possibly forever) until
59 * the lock is available. Test and test and set logic used.
60 * These routines have moved to the comm page.
66 ba _COMM_PAGE_SPINLOCK_TRY
72 ba _COMM_PAGE_SPINLOCK_LOCK
75 /* void spin_unlock(int *p);
77 * Unlock the lock pointed to by p.
82 ba _COMM_PAGE_SPINLOCK_UNLOCK
85 #elif defined(__i386__)
87 #include <architecture/i386/asm_help.h>
94 * Lock the lock pointed to by p. Spin (possibly forever) until the next
100 .globl _spin_lock_try
101 LEAF(__spin_lock_try, 0)
103 movl $(_COMM_PAGE_SPINLOCK_TRY), %eax
111 movl $(_COMM_PAGE_SPINLOCK_LOCK), %eax
119 * Unlock the lock pointed to by p.
124 LEAF(__spin_unlock, 0)
126 movl $(_COMM_PAGE_SPINLOCK_UNLOCK), %eax
130 #error spin_locks not defined for this architecture