1/* 2 * Copyright (c) 2000-2004 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_VM_TYPES_H_ 33#define _MACH_VM_TYPES_H_ 34 35#include <mach/port.h> 36#include <mach/machine/vm_types.h> 37 38#include <stdint.h> 39 40typedef vm_offset_t pointer_t; 41typedef vm_offset_t vm_address_t; 42 43/* 44 * We use addr64_t for 64-bit addresses that are used on both 45 * 32 and 64-bit machines. On PPC, they are passed and returned as 46 * two adjacent 32-bit GPRs. We use addr64_t in places where 47 * common code must be useable both on 32 and 64-bit machines. 48 */ 49typedef uint64_t addr64_t; /* Basic effective address */ 50 51/* 52 * We use reg64_t for addresses that are 32 bits on a 32-bit 53 * machine, and 64 bits on a 64-bit machine, but are always 54 * passed and returned in a single GPR on PPC. This type 55 * cannot be used in generic 32-bit c, since on a 64-bit 56 * machine the upper half of the register will be ignored 57 * by the c compiler in 32-bit mode. In c, we can only use the 58 * type in prototypes of functions that are written in and called 59 * from assembly language. This type is basically a comment. 60 */ 61typedef uint32_t reg64_t; 62 63/* 64 * To minimize the use of 64-bit fields, we keep some physical 65 * addresses (that are page aligned) as 32-bit page numbers. 66 * This limits the physical address space to 16TB of RAM. 67 */ 68typedef uint32_t ppnum_t; /* Physical page number */ 69#define PPNUM_MAX UINT32_MAX 70 71 72#ifdef KERNEL_PRIVATE 73 74#include <sys/cdefs.h> 75 76#ifndef MACH_KERNEL_PRIVATE 77/* 78 * Use specifically typed null structures for these in 79 * other parts of the kernel to enable compiler warnings 80 * about type mismatches, etc... Otherwise, these would 81 * be void*. 82 */ 83__BEGIN_DECLS 84 85struct pmap ; 86struct _vm_map ; 87struct vm_object ; 88 89__END_DECLS 90 91#endif /* MACH_KERNEL_PRIVATE */ 92 93typedef struct pmap *pmap_t; 94typedef struct _vm_map *vm_map_t; 95typedef struct vm_object *vm_object_t; 96typedef struct vm_object_fault_info *vm_object_fault_info_t; 97 98#define PMAP_NULL ((pmap_t) 0) 99#define VM_OBJECT_NULL ((vm_object_t) 0) 100 101#else /* KERNEL_PRIVATE */ 102 103typedef mach_port_t vm_map_t; 104 105#endif /* KERNEL_PRIVATE */ 106 107#define VM_MAP_NULL ((vm_map_t) 0) 108 109/* 110 * Evolving definitions, likely to change. 111 */ 112 113typedef uint64_t vm_object_offset_t; 114typedef uint64_t vm_object_size_t; 115 116#ifdef KERNEL_PRIVATE 117 118#ifndef MACH_KERNEL_PRIVATE 119 120__BEGIN_DECLS 121 122struct upl ; 123struct vm_map_copy ; 124struct vm_named_entry ; 125 126__END_DECLS 127 128#endif /* MACH_KERNEL_PRIVATE */ 129 130typedef struct upl *upl_t; 131typedef struct vm_map_copy *vm_map_copy_t; 132typedef struct vm_named_entry *vm_named_entry_t; 133 134#define VM_MAP_COPY_NULL ((vm_map_copy_t) 0) 135 136#else /* KERNEL_PRIVATE */ 137 138typedef mach_port_t upl_t; 139typedef mach_port_t vm_named_entry_t; 140 141#endif /* KERNEL_PRIVATE */ 142 143#define UPL_NULL ((upl_t) 0) 144#define VM_NAMED_ENTRY_NULL ((vm_named_entry_t) 0) 145 146#endif /* _MACH_VM_TYPES_H_ */ 147