vmparam.h revision 1.1.2.2
1 1.1.2.2 jdolecek /* $NetBSD: vmparam.h,v 1.1.2.2 2002/06/23 17:37:11 jdolecek Exp $ */ 2 1.1.2.2 jdolecek 3 1.1.2.2 jdolecek /* $OpenBSD: vmparam.h,v 1.17 2001/09/22 18:00:09 miod Exp $ */ 4 1.1.2.2 jdolecek 5 1.1.2.2 jdolecek /* 6 1.1.2.2 jdolecek * Copyright (c) 1988-1994, The University of Utah and 7 1.1.2.2 jdolecek * the Computer Systems Laboratory at the University of Utah (CSL). 8 1.1.2.2 jdolecek * All rights reserved. 9 1.1.2.2 jdolecek * 10 1.1.2.2 jdolecek * Permission to use, copy, modify and distribute this software is hereby 11 1.1.2.2 jdolecek * granted provided that (1) source code retains these copyright, permission, 12 1.1.2.2 jdolecek * and disclaimer notices, and (2) redistributions including binaries 13 1.1.2.2 jdolecek * reproduce the notices in supporting documentation, and (3) all advertising 14 1.1.2.2 jdolecek * materials mentioning features or use of this software display the following 15 1.1.2.2 jdolecek * acknowledgement: ``This product includes software developed by the 16 1.1.2.2 jdolecek * Computer Systems Laboratory at the University of Utah.'' 17 1.1.2.2 jdolecek * 18 1.1.2.2 jdolecek * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS 19 1.1.2.2 jdolecek * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF 20 1.1.2.2 jdolecek * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 21 1.1.2.2 jdolecek * 22 1.1.2.2 jdolecek * CSL requests users of this software to return to csl-dist (at) cs.utah.edu any 23 1.1.2.2 jdolecek * improvements that they make and grant CSL redistribution rights. 24 1.1.2.2 jdolecek * 25 1.1.2.2 jdolecek * Utah $Hdr: vmparam.h 1.16 94/12/16$ 26 1.1.2.2 jdolecek */ 27 1.1.2.2 jdolecek 28 1.1.2.2 jdolecek #ifndef _HPPA_VMPARAM_H_ 29 1.1.2.2 jdolecek #define _HPPA_VMPARAM_H_ 30 1.1.2.2 jdolecek 31 1.1.2.2 jdolecek /* 32 1.1.2.2 jdolecek * Machine dependent constants for HP PA 33 1.1.2.2 jdolecek */ 34 1.1.2.2 jdolecek /* 35 1.1.2.2 jdolecek * USRTEXT is the start of the user text/data space, while USRSTACK 36 1.1.2.2 jdolecek * is the top (end) of the user stack. LOWPAGES and HIGHPAGES are 37 1.1.2.2 jdolecek * the number of pages from the beginning of the P0 region to the 38 1.1.2.2 jdolecek * beginning of the text and from the beginning of the P1 region to the 39 1.1.2.2 jdolecek * beginning of the stack respectively. 40 1.1.2.2 jdolecek */ 41 1.1.2.2 jdolecek #define USRTEXT 0x00002000 /* Start of user .text */ 42 1.1.2.2 jdolecek #define USRSTACK 0x68FF3000 /* Start of user stack */ 43 1.1.2.2 jdolecek #define LOWPAGES 0 44 1.1.2.2 jdolecek #define HIGHPAGES UPAGES 45 1.1.2.2 jdolecek #define SYSCALLGATE 0xC0000000 /* syscall gateway page */ 46 1.1.2.2 jdolecek 47 1.1.2.2 jdolecek #define __HAVE_PMAP_PHYSSEG 48 1.1.2.2 jdolecek 49 1.1.2.2 jdolecek /* Alignment requirement for a uspace. */ 50 1.1.2.2 jdolecek #define USPACE_ALIGN NBPG 51 1.1.2.2 jdolecek 52 1.1.2.2 jdolecek /* 53 1.1.2.2 jdolecek * Virtual memory related constants, all in bytes 54 1.1.2.2 jdolecek */ 55 1.1.2.2 jdolecek #ifndef MAXTSIZ 56 1.1.2.2 jdolecek #define MAXTSIZ (0x40000000) /* max text size */ 57 1.1.2.2 jdolecek #endif 58 1.1.2.2 jdolecek #ifndef DFLDSIZ 59 1.1.2.2 jdolecek #define DFLDSIZ (16*1024*1024) /* initial data size limit */ 60 1.1.2.2 jdolecek #endif 61 1.1.2.2 jdolecek #ifndef MAXDSIZ 62 1.1.2.2 jdolecek #define MAXDSIZ (USRSTACK-MAXTSIZ) /* max data size */ 63 1.1.2.2 jdolecek #endif 64 1.1.2.2 jdolecek #ifndef DFLSSIZ 65 1.1.2.2 jdolecek #define DFLSSIZ (512*1024) /* initial stack size limit */ 66 1.1.2.2 jdolecek #endif 67 1.1.2.2 jdolecek #ifndef MAXSSIZ 68 1.1.2.2 jdolecek #define MAXSSIZ (UADDR-USRSTACK) /* max stack size */ 69 1.1.2.2 jdolecek #endif 70 1.1.2.2 jdolecek 71 1.1.2.2 jdolecek #ifndef USRIOSIZE 72 1.1.2.2 jdolecek #define USRIOSIZE ((2*HPPA_PGALIAS)/PAGE_SIZE) /* 2mb */ 73 1.1.2.2 jdolecek #endif 74 1.1.2.2 jdolecek 75 1.1.2.2 jdolecek /* 76 1.1.2.2 jdolecek * PTEs for system V style shared memory. 77 1.1.2.2 jdolecek * This is basically slop for kmempt which we actually allocate (malloc) from. 78 1.1.2.2 jdolecek */ 79 1.1.2.2 jdolecek #ifndef SHMMAXPGS 80 1.1.2.2 jdolecek #define SHMMAXPGS ((1024*1024*10)/NBPG) /* 10mb */ 81 1.1.2.2 jdolecek #endif 82 1.1.2.2 jdolecek 83 1.1.2.2 jdolecek /* 84 1.1.2.2 jdolecek * The time for a process to be blocked before being very swappable. 85 1.1.2.2 jdolecek * This is a number of seconds which the system takes as being a non-trivial 86 1.1.2.2 jdolecek * amount of real time. You probably shouldn't change this; 87 1.1.2.2 jdolecek * it is used in subtle ways (fractions and multiples of it are, that is, like 88 1.1.2.2 jdolecek * half of a ``long time'', almost a long time, etc.) 89 1.1.2.2 jdolecek * It is related to human patience and other factors which don't really 90 1.1.2.2 jdolecek * change over time. 91 1.1.2.2 jdolecek */ 92 1.1.2.2 jdolecek #define MAXSLP 20 93 1.1.2.2 jdolecek 94 1.1.2.2 jdolecek /* user/kernel map constants */ 95 1.1.2.2 jdolecek #define VM_MIN_ADDRESS ((vaddr_t)0) 96 1.1.2.2 jdolecek #define VM_MAXUSER_ADDRESS ((vaddr_t)0xc0000000) 97 1.1.2.2 jdolecek #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 98 1.1.2.2 jdolecek #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)0) 99 1.1.2.2 jdolecek #define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xf0000000) 100 1.1.2.2 jdolecek 101 1.1.2.2 jdolecek /* virtual sizes (bytes) for various kernel submaps */ 102 1.1.2.2 jdolecek #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) 103 1.1.2.2 jdolecek 104 1.1.2.2 jdolecek #define VM_PHYSSEG_MAX 8 /* this many physmem segments */ 105 1.1.2.2 jdolecek #define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST 106 1.1.2.2 jdolecek 107 1.1.2.2 jdolecek #define VM_PHYSSEG_NOADD /* XXX until uvm code is fixed */ 108 1.1.2.2 jdolecek 109 1.1.2.2 jdolecek #define VM_NFREELIST 2 110 1.1.2.2 jdolecek #define VM_FREELIST_DEFAULT 0 111 1.1.2.2 jdolecek #define VM_FREELIST_FIRST16 1 112 1.1.2.2 jdolecek 113 1.1.2.2 jdolecek #ifdef _KERNEL 114 1.1.2.2 jdolecek struct pmap_physseg { 115 1.1.2.2 jdolecek int pmap_table_off; 116 1.1.2.2 jdolecek }; 117 1.1.2.2 jdolecek #endif 118 1.1.2.2 jdolecek 119 1.1.2.2 jdolecek #endif /* _HPPA_VMPARAM_H_ */ 120 1.1.2.2 jdolecek 121
Indexes created Wed Oct 22 13:09:56 GMT 2025