1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * @OSF_COPYRIGHT@
30 */
31/*
32 * Mach Operating System
33 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
34 * All Rights Reserved.
35 *
36 * Permission to use, copy, modify and distribute this software and its
37 * documentation is hereby granted, provided that both the copyright
38 * notice and this permission notice appear in all copies of the
39 * software, derivative works or modified versions, and any portions
40 * thereof, and that both notices appear in supporting documentation.
41 *
42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45 *
46 * Carnegie Mellon requests users of this software to return to
47 *
48 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
49 *  School of Computer Science
50 *  Carnegie Mellon University
51 *  Pittsburgh PA 15213-3890
52 *
53 * any improvements or extensions that they make and grant Carnegie Mellon
54 * the rights to redistribute these changes.
55 */
56
57#ifdef	KERNEL_PRIVATE
58
59#ifndef	_PPC_SIMPLE_LOCK_TYPES_H_
60#define	_PPC_SIMPLE_LOCK_TYPES_H_
61
62#ifdef	KERNEL_PRIVATE
63#include <mach/boolean.h>
64#include <kern/kern_types.h>
65
66#include <sys/appleapiopts.h>
67#ifdef  MACH_KERNEL_PRIVATE
68#include <ppc/hw_lock_types.h>
69#include <ppc/locks.h>
70#include <mach_ldebug.h>
71#endif
72
73#ifdef MACH_KERNEL_PRIVATE
74
75#if MACH_LDEBUG
76#define USLOCK_DEBUG 1
77#else
78#define USLOCK_DEBUG 0
79#endif
80
81#if     !USLOCK_DEBUG
82
83typedef lck_spin_t usimple_lock_data_t, *usimple_lock_t;
84
85#else
86
87typedef struct uslock_debug {
88	void			*lock_pc;	/* pc where lock operation began    */
89	void			*lock_thread;	/* thread that acquired lock */
90	unsigned long	duration[2];
91	unsigned short	state;
92	unsigned char	lock_cpu;
93	void			*unlock_thread;	/* last thread to release lock */
94	unsigned char	unlock_cpu;
95	void			*unlock_pc;	/* pc where lock operation ended    */
96} uslock_debug;
97
98typedef struct {
99	hw_lock_data_t	interlock;	/* must be first... see lock.c */
100	unsigned short	lock_type;	/* must be second... see lock.c */
101#define USLOCK_TAG	0x5353
102	uslock_debug	debug;
103} usimple_lock_data_t, *usimple_lock_t;
104
105#endif	/* USLOCK_DEBUG */
106
107#else
108
109typedef	struct slock {
110	unsigned int	lock_data[10];
111} usimple_lock_data_t, *usimple_lock_t;
112
113#endif	/* MACH_KERNEL_PRIVATE */
114
115#define	USIMPLE_LOCK_NULL	((usimple_lock_t) 0)
116
117#if !defined(decl_simple_lock_data)
118
119typedef usimple_lock_data_t	*simple_lock_t;
120typedef usimple_lock_data_t	simple_lock_data_t;
121
122#define	decl_simple_lock_data(class,name) \
123	class	simple_lock_data_t	name;
124
125#endif	/* !defined(decl_simple_lock_data) */
126
127#ifdef	MACH_KERNEL_PRIVATE
128#if	!MACH_LDEBUG
129
130#define MACHINE_SIMPLE_LOCK
131
132extern void						ppc_usimple_lock_init(simple_lock_t,unsigned short);
133extern void						ppc_usimple_lock(simple_lock_t);
134extern void						ppc_usimple_unlock_rwmb(simple_lock_t);
135extern void						ppc_usimple_unlock_rwcmb(simple_lock_t);
136extern unsigned int				ppc_usimple_lock_try(simple_lock_t);
137
138#define simple_lock_init(l,t)	ppc_usimple_lock_init(l,t)
139#define simple_lock(l)			ppc_usimple_lock(l)
140#define simple_unlock(l)		ppc_usimple_unlock_rwcmb(l)
141#define simple_unlock_rwmb(l)	ppc_usimple_unlock_rwmb(l)
142#define simple_lock_try(l)		ppc_usimple_lock_try(l)
143#define simple_lock_addr(l)		(&(l))
144#define thread_sleep_simple_lock(l, e, i) \
145								thread_sleep_fast_usimple_lock((l), (e), (i))
146#endif	/* !MACH_LDEBUG */
147
148extern unsigned int		hw_lock_bit(
149					unsigned int *,
150					unsigned int,
151					unsigned int);
152
153extern unsigned int		hw_cpu_sync(
154					unsigned int *,
155					unsigned int);
156
157extern unsigned int		hw_cpu_wcng(
158					unsigned int *,
159					unsigned int,
160					unsigned int);
161
162extern unsigned int		hw_lock_mbits(
163					unsigned int *,
164					unsigned int,
165					unsigned int,
166					unsigned int,
167					unsigned int);
168
169void				hw_unlock_bit(
170					unsigned int *,
171					unsigned int);
172
173#endif	/* MACH_KERNEL_PRIVATE */
174#endif	/* KERNEL_PRIVATE */
175
176#endif /* !_PPC_SIMPLE_LOCK_TYPES_H_ */
177
178#endif	/* KERNEL_PRIVATE */
179