1/* 2 * Copyright (c) 2000-2005 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#ifndef _MACH_PPC_VM_PARAM_H_ 33#define _MACH_PPC_VM_PARAM_H_ 34 35/* 36 * These are the global definitions 37 */ 38 39#define BYTE_SIZE 8 /* byte size in bits */ 40 41#define PPC_PGBYTES 4096 /* bytes per ppc page */ 42#define PPC_PGSHIFT 12 /* number of bits to shift for pages */ 43 44#define PAGE_SIZE PPC_PGBYTES 45#define PAGE_SHIFT PPC_PGSHIFT 46#define PAGE_MASK (PAGE_SIZE - 1) 47 48#if 0 49#define VM_MAX_PAGE_ADDRESS 0xFFFFFFFFFFFFF000ULL 50#else 51/* 52 * LP64todo - For now, we are limited to 51-bits of user addressing 53 */ 54#define VM_MAX_PAGE_ADDRESS 0x0007FFFFFFFFF000ULL 55#endif 56 57#define MACH_VM_MIN_ADDRESS ((mach_vm_offset_t) 0) 58#define MACH_VM_MAX_ADDRESS ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS) 59 60/* 61 * These are the values relative to the local process. 62 */ 63#if defined (__ppc64__) 64/* 65 * LP64todo - We don't have the 64-bit address space layout yet. 66 * Use the 32-bit stack layout for now. 67 */ 68#define VM_MIN_ADDRESS ((vm_offset_t) MACH_VM_MIN_ADDRESS) 69#define VM_MAX_ADDRESS ((vm_offset_t) MACH_VM_MAX_ADDRESS) 70#define USER_STACK_END ((vm_offset_t) 0x00000000ffff0000ULL) 71#else 72#define VM_MIN_ADDRESS ((vm_offset_t) 0) 73#define VM_MAX_ADDRESS ((vm_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF)) 74#define USER_STACK_END ((vm_offset_t) 0xffff0000U) 75#endif /* defined(__ppc64__) */ 76 77#ifdef KERNEL_PRIVATE 78 79/* Kernel-wide values */ 80#define VM_MIN_KERNEL_ADDRESS ((vm_offset_t) 0x00001000U) 81#define VM_MAX_KERNEL_ADDRESS ((vm_offset_t) 0xDFFFFFFFU) 82#define KERNEL_STACK_SIZE (4 * PPC_PGBYTES) 83#define INTSTACK_SIZE (5 * PPC_PGBYTES) 84 85#define VM_MAP_MIN_ADDRESS MACH_VM_MIN_ADDRESS 86#define VM_MAP_MAX_ADDRESS MACH_VM_MAX_ADDRESS 87 88#ifdef MACH_KERNEL_PRIVATE 89 90/* For implementing legacy 32-bit interfaces */ 91#define VM32_SUPPORT 92#define VM32_MIN_ADDRESS ((vm32_offset_t) 0) 93#define VM32_MAX_ADDRESS ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF)) 94 95#endif /* MACH_KERNEL_PRIVATE */ 96 97#endif /* KERNEL_PRIVATE */ 98 99#endif /* _MACH_PPC_VM_PARAM_H_ */ 100