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