vmparam.h revision 1.2.2.2
1 1.2.2.2 tls /* $NetBSD: vmparam.h,v 1.2.2.2 2014/08/20 00:02:39 tls Exp $ */ 2 1.2.2.2 tls 3 1.2.2.2 tls /*- 4 1.2.2.2 tls * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 1.2.2.2 tls * All rights reserved. 6 1.2.2.2 tls * 7 1.2.2.2 tls * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 tls * by Matt Thomas of 3am Software Foundry. 9 1.2.2.2 tls * 10 1.2.2.2 tls * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 tls * modification, are permitted provided that the following conditions 12 1.2.2.2 tls * are met: 13 1.2.2.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 tls * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 tls * documentation and/or other materials provided with the distribution. 18 1.2.2.2 tls * 19 1.2.2.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.2.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.2.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.2.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.2.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.2.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.2.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.2.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.2.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.2.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.2.2 tls * POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 tls */ 31 1.2.2.2 tls 32 1.2.2.2 tls #ifndef _AARCH64_VMPARAM_H_ 33 1.2.2.2 tls #define _AARCH64_VMPARAM_H_ 34 1.2.2.2 tls 35 1.2.2.2 tls #ifdef __aarch64__ 36 1.2.2.2 tls 37 1.2.2.2 tls /* 38 1.2.2.2 tls * AARCH64 supports 3 page sizes: 4KB, 16KB, 64KB. Each page table can 39 1.2.2.2 tls * even have its own page size. 40 1.2.2.2 tls */ 41 1.2.2.2 tls 42 1.2.2.2 tls #ifdef AARCH64_PAGE_SHIFT 43 1.2.2.2 tls #if (1 << AARCH64_PAGE_SHIFT) & ~0x141000 44 1.2.2.2 tls #error AARCH64_PAGE_SHIFT contains an unsupported value. 45 1.2.2.2 tls #endif 46 1.2.2.2 tls #define PAGE_SHIFT AARCH64_PAGE_SHIFT 47 1.2.2.2 tls #else 48 1.2.2.2 tls #define PAGE_SHIFT 12 49 1.2.2.2 tls #endif 50 1.2.2.2 tls #define PAGE_SIZE (1 << PAGE_SHIFT) 51 1.2.2.2 tls #define PAGE_MASK (PAGE_SIZE - 1) 52 1.2.2.2 tls 53 1.2.2.2 tls #if PAGE_SHIFT <= 14 54 1.2.2.2 tls #define USPACE 16384 55 1.2.2.2 tls #else 56 1.2.2.2 tls #define USPACE 65536 57 1.2.2.2 tls #endif 58 1.2.2.2 tls #define UPAGES (USPACE >> PAGE_SHIFT) 59 1.2.2.2 tls 60 1.2.2.2 tls /* 61 1.2.2.2 tls * USRSTACK is the top (end) of the user stack. The user VA space is a 62 1.2.2.2 tls * 48-bit address space starting at 0. Place the stack at its top end. 63 1.2.2.2 tls */ 64 1.2.2.2 tls #define USRSTACK ((vaddr_t) 0x0000ffffffff0000) 65 1.2.2.2 tls #define USRSTACK32 ((vaddr_t) 0x7ffff000) 66 1.2.2.2 tls 67 1.2.2.2 tls #ifndef MAXTSIZ 68 1.2.2.2 tls #define MAXTSIZ (1L << 30) /* max text size (1GB) */ 69 1.2.2.2 tls #endif 70 1.2.2.2 tls 71 1.2.2.2 tls #ifndef MAXTSIZ32 72 1.2.2.2 tls #define MAXTSIZ32 (1L << 26) /* 32bit max text size (64MB) */ 73 1.2.2.2 tls #endif 74 1.2.2.2 tls 75 1.2.2.2 tls #ifndef MAXDSIZ 76 1.2.2.2 tls #define MAXDSIZ (1L << 36) /* max data size (64GB) */ 77 1.2.2.2 tls #endif 78 1.2.2.2 tls 79 1.2.2.2 tls #ifndef MAXSSIZ 80 1.2.2.2 tls #define MAXSSIZ (1L << 26) /* max stack size (64MB) */ 81 1.2.2.2 tls #endif 82 1.2.2.2 tls 83 1.2.2.2 tls #ifndef DFLDSIZ 84 1.2.2.2 tls #define DFLDSIZ (1L << 32) /* default data size (4GB) */ 85 1.2.2.2 tls #endif 86 1.2.2.2 tls 87 1.2.2.2 tls #ifndef DFLDSIZ32 88 1.2.2.2 tls #define DFLDSIZ32 (1L << 27) /* 32bit default data size (128MB) */ 89 1.2.2.2 tls #endif 90 1.2.2.2 tls 91 1.2.2.2 tls #ifndef DFLSSIZ 92 1.2.2.2 tls #define DFLSSIZ (1L << 23) /* default stack size (8MB) */ 93 1.2.2.2 tls #endif 94 1.2.2.2 tls 95 1.2.2.2 tls #ifndef DFLSSIZ32 96 1.2.2.2 tls #define DFLSSIZ32 (1L << 21) /* 32bit default stack size (2MB) */ 97 1.2.2.2 tls #endif 98 1.2.2.2 tls 99 1.2.2.2 tls #define VM_MIN_ADDRESS ((vaddr_t) 0x0) 100 1.2.2.2 tls #define VM_MAXUSER_ADDRESS ((vaddr_t) (1L << 48) - PAGE_SIZE) 101 1.2.2.2 tls #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 102 1.2.2.2 tls 103 1.2.2.2 tls #define VM_MAXUSER_ADDRESS32 ((vaddr_t) 0x7ffff000) 104 1.2.2.2 tls 105 1.2.2.2 tls /* 106 1.2.2.2 tls * Give ourselves 64GB of mappable kernel space. That leaves the rest 107 1.2.2.2 tls * to be user for directly mapped (block addressable) addresses. 108 1.2.2.2 tls */ 109 1.2.2.2 tls #define VM_MIN_KERNEL_ADDRESS ((vaddr_t) 0xffffffc000000000L) 110 1.2.2.2 tls #define VM_MAX_KERNEL_ADDRESS ((vaddr_t) 0xffffffffffff0000L) 111 1.2.2.2 tls 112 1.2.2.2 tls /* virtual sizes (bytes) for various kernel submaps */ 113 1.2.2.2 tls #define USRIOSIZE (PAGE_SIZE / 8) 114 1.2.2.2 tls #define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE) 115 1.2.2.2 tls 116 1.2.2.2 tls /* 117 1.2.2.2 tls * Since we have the address space, we map all of physical memory (RAM) 118 1.2.2.2 tls * using block page table entries. 119 1.2.2.2 tls */ 120 1.2.2.2 tls #define AARCH64_KSEG_MASK ((vaddr_t) 0xffff000000000000L) 121 1.2.2.2 tls #define AARCH64_KSEG_START AARCH64_KSEG_MASK 122 1.2.2.2 tls #define AARCH64_KMEMORY_BASE AARCH64_KSEG_MASK 123 1.2.2.2 tls #define AARCH64_KVA_P(va) (((vaddr_t) (va) & AARCH64_KSEG_MASK) != 0) 124 1.2.2.2 tls #define AARCH64_PA_TO_KVA(pa) ((vaddr_t) ((pa) | AARCH64_KSEG_START)) 125 1.2.2.2 tls #define AARCH64_KVA_TO_PA(va) ((paddr_t) ((pa) & ~AARCH64_KSEG_MASK)) 126 1.2.2.2 tls 127 1.2.2.2 tls /* */ 128 1.2.2.2 tls #define VM_PHYSSEG_MAX 16 /* XXX */ 129 1.2.2.2 tls #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 130 1.2.2.2 tls 131 1.2.2.2 tls #define VM_NFREELIST 2 132 1.2.2.2 tls #define VM_FREELIST_DEFAULT 0 133 1.2.2.2 tls #define VM_FREELIST_FIRST4GB 1 134 1.2.2.2 tls 135 1.2.2.2 tls #elif defined(__arm__) 136 1.2.2.2 tls 137 1.2.2.2 tls #include <arm/vmparam.h> 138 1.2.2.2 tls 139 1.2.2.2 tls #endif /* __aarch64__/__arm__ */ 140 1.2.2.2 tls 141 1.2.2.2 tls #endif /* _AARCH64_VMPARAM_H_ */ 142
Indexes created Fri Oct 31 11:10:07 GMT 2025