vmparam.h revision 1.1.10.2
1 1.1.10.2 tron /* $NetBSD: vmparam.h,v 1.1.10.2 2006/05/24 15:48:00 tron Exp $ */ 2 1.1.10.2 tron 3 1.1.10.2 tron /*- 4 1.1.10.2 tron * Copyright (c) 1990 The Regents of the University of California. 5 1.1.10.2 tron * All rights reserved. 6 1.1.10.2 tron * 7 1.1.10.2 tron * This code is derived from software contributed to Berkeley by 8 1.1.10.2 tron * William Jolitz. 9 1.1.10.2 tron * 10 1.1.10.2 tron * Redistribution and use in source and binary forms, with or without 11 1.1.10.2 tron * modification, are permitted provided that the following conditions 12 1.1.10.2 tron * are met: 13 1.1.10.2 tron * 1. Redistributions of source code must retain the above copyright 14 1.1.10.2 tron * notice, this list of conditions and the following disclaimer. 15 1.1.10.2 tron * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.10.2 tron * notice, this list of conditions and the following disclaimer in the 17 1.1.10.2 tron * documentation and/or other materials provided with the distribution. 18 1.1.10.2 tron * 3. Neither the name of the University nor the names of its contributors 19 1.1.10.2 tron * may be used to endorse or promote products derived from this software 20 1.1.10.2 tron * without specific prior written permission. 21 1.1.10.2 tron * 22 1.1.10.2 tron * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 1.1.10.2 tron * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 1.1.10.2 tron * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 1.1.10.2 tron * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 1.1.10.2 tron * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 1.1.10.2 tron * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 1.1.10.2 tron * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 1.1.10.2 tron * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 1.1.10.2 tron * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 1.1.10.2 tron * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 1.1.10.2 tron * SUCH DAMAGE. 33 1.1.10.2 tron * 34 1.1.10.2 tron * @(#)vmparam.h 5.9 (Berkeley) 5/12/91 35 1.1.10.2 tron */ 36 1.1.10.2 tron 37 1.1.10.2 tron #ifndef _VMPARAM_H_ 38 1.1.10.2 tron #define _VMPARAM_H_ 39 1.1.10.2 tron 40 1.1.10.2 tron #include <sys/tree.h> 41 1.1.10.2 tron 42 1.1.10.2 tron #define USRSTACK VM_MAX_ADDRESS /* XXX: Revisit vm address space. */ 43 1.1.10.2 tron 44 1.1.10.2 tron /* 45 1.1.10.2 tron * Virtual memory related constants, all in bytes 46 1.1.10.2 tron */ 47 1.1.10.2 tron #ifndef MAXTSIZ 48 1.1.10.2 tron #define MAXTSIZ (1<<30) /* max text size (1G) */ 49 1.1.10.2 tron #endif 50 1.1.10.2 tron #ifndef DFLDSIZ 51 1.1.10.2 tron #define DFLDSIZ (1<<27) /* initial data size (128M) */ 52 1.1.10.2 tron #endif 53 1.1.10.2 tron #ifndef MAXDSIZ 54 1.1.10.2 tron #define MAXDSIZ (1<<30) /* max data size (1G) */ 55 1.1.10.2 tron #endif 56 1.1.10.2 tron #ifndef DFLSSIZ 57 1.1.10.2 tron #define DFLSSIZ (1<<21) /* initial stack size (2M) */ 58 1.1.10.2 tron #endif 59 1.1.10.2 tron #ifndef MAXSSIZ 60 1.1.10.2 tron #define MAXSSIZ (1<<28) /* max stack size (256M) */ 61 1.1.10.2 tron #endif 62 1.1.10.2 tron #ifndef SGROWSIZ 63 1.1.10.2 tron #define SGROWSIZ (128UL*1024) /* amount to grow stack */ 64 1.1.10.2 tron #endif 65 1.1.10.2 tron 66 1.1.10.2 tron 67 1.1.10.2 tron 68 1.1.10.2 tron /* 69 1.1.10.2 tron * PTEs for mapping user space into the kernel for phyio operations. 70 1.1.10.2 tron * 64 pte's are enough to cover 8 disks * MAXBSIZE. 71 1.1.10.2 tron */ 72 1.1.10.2 tron #ifndef USRIOSIZE 73 1.1.10.2 tron #define USRIOSIZE 64 74 1.1.10.2 tron #endif 75 1.1.10.2 tron 76 1.1.10.2 tron /* 77 1.1.10.2 tron * Manipulating region bits of an address. 78 1.1.10.2 tron */ 79 1.1.10.2 tron #define IA64_RR_BASE(n) (((u_int64_t) (n)) << 61) 80 1.1.10.2 tron #define IA64_RR_MASK(x) ((x) & ((1L << 61) - 1)) 81 1.1.10.2 tron 82 1.1.10.2 tron #define IA64_PHYS_TO_RR6(x) ((x) | IA64_RR_BASE(6)) 83 1.1.10.2 tron #define IA64_PHYS_TO_RR7(x) ((x) | IA64_RR_BASE(7)) 84 1.1.10.2 tron 85 1.1.10.2 tron #define IA64_ID_PAGE_SHIFT 28 /* 256M */ 86 1.1.10.2 tron #define IA64_ID_PAGE_SIZE (1 << IA64_ID_PAGE_SHIFT) 87 1.1.10.2 tron #define IA64_ID_PAGE_MASK (IA64_ID_PAGE_SIZE-1) 88 1.1.10.2 tron 89 1.1.10.2 tron #define PAGE_SHIFT 14 /* 16K pages by default. */ 90 1.1.10.2 tron #define PAGE_SIZE (1 << PAGE_SHIFT) 91 1.1.10.2 tron #define PAGE_MASK (PAGE_SIZE - 1) 92 1.1.10.2 tron 93 1.1.10.2 tron /* user/kernel map constants */ 94 1.1.10.2 tron #define VM_MIN_ADDRESS ((vaddr_t)0) 95 1.1.10.2 tron #define VM_MAX_ADDRESS ((vaddr_t) IA64_RR_BASE(5)) 96 1.1.10.2 tron #define VM_GATEWAY_SIZE PAGE_SIZE 97 1.1.10.2 tron #define VM_MAXUSER_ADDRESS (VM_MAX_ADDRESS + VM_GATEWAY_SIZE) 98 1.1.10.2 tron #define VM_MIN_KERNEL_ADDRESS VM_MAXUSER_ADDRESS 99 1.1.10.2 tron #define VM_MAX_KERNEL_ADDRESS ((vaddr_t) (IA64_RR_BASE(6) - 1)) 100 1.1.10.2 tron 101 1.1.10.2 tron #define VM_PHYSSEG_MAX 16 /* XXX: */ 102 1.1.10.2 tron #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 103 1.1.10.2 tron #define VM_PHYSSEG_NOADD /* no more after vm_mem_init */ 104 1.1.10.2 tron 105 1.1.10.2 tron #define VM_NFREELIST 1 /* XXX: */ 106 1.1.10.2 tron #define VM_FREELIST_DEFAULT 0 /* XXX: */ 107 1.1.10.2 tron 108 1.1.10.2 tron /* virtual sizes (bytes) for various kernel submaps */ 109 1.1.10.2 tron #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) 110 1.1.10.2 tron 111 1.1.10.2 tron #ifndef _LOCORE 112 1.1.10.2 tron /* 113 1.1.10.2 tron * pmap-specific data store in the vm_page structure. 114 1.1.10.2 tron */ 115 1.1.10.2 tron #define __HAVE_VM_PAGE_MD 116 1.1.10.2 tron struct vm_page_md { 117 1.1.10.2 tron TAILQ_HEAD(,pv_entry) pv_list; /* pv_entry list */ 118 1.1.10.2 tron int pv_list_count; 119 1.1.10.2 tron struct simplelock pv_slock; /* lock on this head */ 120 1.1.10.2 tron int pvh_attrs; /* page attributes */ 121 1.1.10.2 tron }; 122 1.1.10.2 tron 123 1.1.10.2 tron #define VM_MDPAGE_INIT(pg) \ 124 1.1.10.2 tron do { \ 125 1.1.10.2 tron TAILQ_INIT(&(pg)->mdpage.pv_list); \ 126 1.1.10.2 tron simple_lock_init(&(pg)->mdpage.pv_slock); \ 127 1.1.10.2 tron } while (/*CONSTCOND*/0) 128 1.1.10.2 tron #endif /*_LOCORE*/ 129 1.1.10.2 tron 130 1.1.10.2 tron #endif /* _VMPARAM_H_ */ 131
Indexes created Wed Oct 15 07:09:58 GMT 2025