| /* |
| * 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_ */ |
