1/*
2 * Copyright (c) 2007 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 * FILE_ID: vm_param.h
30 */
31
32/*
33 * ARM machine dependent virtual memory parameters.
34 */
35
36#ifndef _MACH_ARM_VM_PARAM_H_
37#define _MACH_ARM_VM_PARAM_H_
38
39#if defined (__arm__) || defined (__arm64__)
40
41
42
43#if !defined (KERNEL) && !defined (__ASSEMBLER__)
44#include <mach/vm_page_size.h>
45#endif
46
47#define BYTE_SIZE 8 /* byte size in bits */
48
49
50#define PAGE_SHIFT vm_page_shift
51#define PAGE_SIZE vm_page_size
52#define PAGE_MASK vm_page_mask
53
54#define VM_PAGE_SIZE vm_page_size
55
56#define machine_ptob(x) ((x) << PAGE_SHIFT)
57
58
59#define PAGE_MAX_SHIFT 14
60#define PAGE_MAX_SIZE (1 << PAGE_MAX_SHIFT)
61#define PAGE_MAX_MASK (PAGE_MAX_SIZE-1)
62
63#define PAGE_MIN_SHIFT 12
64#define PAGE_MIN_SIZE (1 << PAGE_MIN_SHIFT)
65#define PAGE_MIN_MASK (PAGE_MIN_SIZE-1)
66
67#define VM_MAX_PAGE_ADDRESS MACH_VM_MAX_ADDRESS
68
69#ifndef __ASSEMBLER__
70
71
72#if defined (__arm__)
73
74#define VM_MIN_ADDRESS ((vm_address_t) 0x00000000)
75#define VM_MAX_ADDRESS ((vm_address_t) 0x80000000)
76
77/* system-wide values */
78#define MACH_VM_MIN_ADDRESS ((mach_vm_offset_t) 0)
79#define MACH_VM_MAX_ADDRESS ((mach_vm_offset_t) VM_MAX_ADDRESS)
80
81#elif defined (__arm64__)
82
83#define VM_MIN_ADDRESS ((vm_address_t) 0x0000000000000000ULL)
84#define VM_MAX_ADDRESS ((vm_address_t) 0x00000000F0000000ULL)
85
86/* system-wide values */
87#define MACH_VM_MIN_ADDRESS_RAW 0x0ULL
88#define MACH_VM_MAX_ADDRESS_RAW 0x00007FFFFE000000ULL
89
90/*
91 * `MACH_VM_MAX_ADDRESS` is exported to user space, but we don't want this
92 * larger value for `MACH_VM_MAX_ADDRESS` to be exposed outside the kernel.
93 */
94
95#define MACH_VM_MIN_ADDRESS ((mach_vm_offset_t) MACH_VM_MIN_ADDRESS_RAW)
96#define MACH_VM_MAX_ADDRESS ((mach_vm_offset_t) MACH_VM_MAX_ADDRESS_RAW)
97
98#define MACH_VM_MIN_GPU_CARVEOUT_ADDRESS_RAW 0x0000001000000000ULL
99#define MACH_VM_MAX_GPU_CARVEOUT_ADDRESS_RAW 0x0000007000000000ULL
100#define MACH_VM_MIN_GPU_CARVEOUT_ADDRESS ((mach_vm_offset_t) MACH_VM_MIN_GPU_CARVEOUT_ADDRESS_RAW)
101#define MACH_VM_MAX_GPU_CARVEOUT_ADDRESS ((mach_vm_offset_t) MACH_VM_MAX_GPU_CARVEOUT_ADDRESS_RAW)
102
103#else /* defined(__arm64__) */
104#error architecture not supported
105#endif
106
107#define VM_MAP_MIN_ADDRESS VM_MIN_ADDRESS
108#define VM_MAP_MAX_ADDRESS VM_MAX_ADDRESS
109
110
111#endif /* !__ASSEMBLER__ */
112
113#define SWI_SYSCALL 0x80
114
115#endif /* defined (__arm__) || defined (__arm64__) */
116
117#endif /* _MACH_ARM_VM_PARAM_H_ */