1 /* 2 * Copyright (c) 2000-2018 Apple 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 40 typedef vm_offset_t pointer_t; 41 typedef 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 */ 49 typedef 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 */ 61 typedef 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 */ 68 typedef uint32_t ppnum_t; /* Physical page number */ 69 #define PPNUM_MAX UINT32_MAX 70 71 72 73 typedef mach_port_t vm_map_t; 74 75 76 #define VM_MAP_NULL ((vm_map_t) 0) 77 78 /* 79 * Evolving definitions, likely to change. 80 */ 81 82 typedef uint64_t vm_object_offset_t; 83 typedef uint64_t vm_object_size_t; 84 85 86 87 88 typedef mach_port_t upl_t; 89 typedef mach_port_t vm_named_entry_t; 90 91 92 #define UPL_NULL ((upl_t) 0) 93 #define VM_NAMED_ENTRY_NULL ((vm_named_entry_t) 0) 94 95 #endif /* _MACH_VM_TYPES_H_ */