/* * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* * Copyright (c) 1994 The University of Utah and * the Computer Systems Laboratory at the University of Utah (CSL). * All rights reserved. * * Permission to use, copy, modify and distribute this software is hereby * granted provided that (1) source code retains these copyright, permission, * and disclaimer notices, and (2) redistributions including binaries * reproduce the notices in supporting documentation, and (3) all advertising * materials mentioning features or use of this software display the following * acknowledgement: ``This product includes software developed by the * Computer Systems Laboratory at the University of Utah.'' * * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * CSL requests users of this software to return to csl-dist@cs.utah.edu any * improvements that they make and grant CSL redistribution rights. * */ /* * File: vm_param.h * Author: Avadis Tevanian, Jr. * Date: 1985 * * I386 machine dependent virtual memory parameters. * Most of the declarations are preceeded by I386_ (or i386_) * which is OK because only I386 specific code will be using * them. */ #ifndef _MACH_I386_VM_PARAM_H_ #define _MACH_I386_VM_PARAM_H_ #define BYTE_SIZE 8 /* byte size in bits */ #define I386_PGBYTES 4096 /* bytes per 80386 page */ #define I386_PGSHIFT 12 /* bitshift for pages */ #define PAGE_SIZE I386_PGBYTES #define PAGE_SHIFT I386_PGSHIFT #define PAGE_MASK (PAGE_SIZE - 1) #define I386_LPGBYTES 2*1024*1024 /* bytes per large page */ #define I386_LPGSHIFT 21 /* bitshift for large pages */ #define I386_LPGMASK (I386_LPGBYTES-1) /* * Convert bytes to pages and convert pages to bytes. * No rounding is used. */ #define i386_btop(x) ((ppnum_t)((x) >> I386_PGSHIFT)) #define machine_btop(x) i386_btop(x) #define i386_ptob(x) (((pmap_paddr_t)(x)) << I386_PGSHIFT) /* * Round off or truncate to the nearest page. These will work * for either addresses or counts. (i.e. 1 byte rounds to 1 page * bytes. */ #define i386_round_page(x) ((((pmap_paddr_t)(x)) + I386_PGBYTES - 1) & \ ~(I386_PGBYTES-1)) #define i386_trunc_page(x) (((pmap_paddr_t)(x)) & ~(I386_PGBYTES-1)) #define VM_MIN_ADDRESS64 ((user_addr_t) 0x0000000000000000ULL) /* * default top of user stack... it grows down from here */ #define VM_USRSTACK64 ((user_addr_t) 0x00007FFF5FC00000ULL) #define VM_DYLD64 ((user_addr_t) 0x00007FFF5FC00000ULL) #define VM_LIB64_SHR_DATA ((user_addr_t) 0x00007FFF60000000ULL) #define VM_LIB64_SHR_TEXT ((user_addr_t) 0x00007FFF80000000ULL) /* * the end of the usable user address space , for now about 47 bits. * the 64 bit commpage is past the end of this */ #define VM_MAX_PAGE_ADDRESS ((user_addr_t) 0x00007FFFFFE00000ULL) /* * canonical end of user address space for limits checking */ #define VM_MAX_USER_PAGE_ADDRESS ((user_addr_t)0x00007FFFFFFFF000ULL) /* system-wide values */ #define MACH_VM_MIN_ADDRESS ((mach_vm_offset_t) 0) #define MACH_VM_MAX_ADDRESS ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS) /* process-relative values (all 32-bit legacy only for now) */ #define VM_MIN_ADDRESS ((vm_offset_t) 0) #define VM_USRSTACK32 ((vm_offset_t) 0xC0000000) #define VM_MAX_ADDRESS ((vm_offset_t) 0xFFE00000) #endif /* _MACH_I386_VM_PARAM_H_ */