1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate /* 27*0Sstevel@tonic-gate * Copyright (c) 1989,1999 by Sun Microsystems, Inc. 28*0Sstevel@tonic-gate * All rights reserved. 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #ifndef _SYS_VM_MACHPARAM_H 32*0Sstevel@tonic-gate #define _SYS_VM_MACHPARAM_H 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #ifdef __cplusplus 37*0Sstevel@tonic-gate extern "C" { 38*0Sstevel@tonic-gate #endif 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * Machine dependent constants for sun4u. 42*0Sstevel@tonic-gate */ 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate /* 45*0Sstevel@tonic-gate * USRTEXT is the start of the user text/data space. 46*0Sstevel@tonic-gate */ 47*0Sstevel@tonic-gate #define USRTEXT 0x2000 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate /* 50*0Sstevel@tonic-gate * Virtual memory related constants for UNIX resource control, all in bytes 51*0Sstevel@tonic-gate * The default stack size of 8M allows an optimization of mmu mapping 52*0Sstevel@tonic-gate * resources so that in normal use a single mmu region map entry (smeg) 53*0Sstevel@tonic-gate * can be used to map both the stack and shared libraries 54*0Sstevel@tonic-gate */ 55*0Sstevel@tonic-gate #define MAXSSIZ (0x7ffff000) /* max stack size limit */ 56*0Sstevel@tonic-gate #define DFLSSIZ (8*1024*1024) /* initial stack size limit */ 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /* 59*0Sstevel@tonic-gate * DSIZE_LIMIT and SSIZE_LIMIT exist to work-around an SVVS bug (1094085), 60*0Sstevel@tonic-gate * and should be removed from the kernel (1094089) 61*0Sstevel@tonic-gate */ 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate #define DSIZE_LIMIT (USERLIMIT-USRTEXT) /* physical data limit */ 64*0Sstevel@tonic-gate #define SSIZE_LIMIT (0x7fffffff) /* physical stack limit */ 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* 67*0Sstevel@tonic-gate * Minimum allowable virtual address space to be used 68*0Sstevel@tonic-gate * by the seg_map segment driver for fast kernel mappings. 69*0Sstevel@tonic-gate */ 70*0Sstevel@tonic-gate #define MINMAPSIZE 0x200000 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate /* 73*0Sstevel@tonic-gate * The virtual address space to be used by the seg_map segment 74*0Sstevel@tonic-gate * driver for fast kernel mappings. 75*0Sstevel@tonic-gate * 76*0Sstevel@tonic-gate * Size is 1/8th of physmem at boot. 77*0Sstevel@tonic-gate */ 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate #ifdef _LP64 80*0Sstevel@tonic-gate #define SEGMAPSIZE (256L * 1024L * 1024L * 1024L) /* 256G */ 81*0Sstevel@tonic-gate #else 82*0Sstevel@tonic-gate #define SEGMAPSIZE (256 * 1024 * 1024) /* 256M */ 83*0Sstevel@tonic-gate #endif /* _LP64 */ 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate /* 86*0Sstevel@tonic-gate * Define the default virtual size and valid size range for the segkp segment. 87*0Sstevel@tonic-gate */ 88*0Sstevel@tonic-gate #ifdef _LP64 89*0Sstevel@tonic-gate #define SEGKPDEFSIZE (2L * 1024L * 1024L * 1024L) /* 2G */ 90*0Sstevel@tonic-gate #define SEGKPMAXSIZE (24L * 1024L * 1024L * 1024L) /* 24G */ 91*0Sstevel@tonic-gate #define SEGKPMINSIZE (512L * 1024 * 1024L) /* 512M */ 92*0Sstevel@tonic-gate #else 93*0Sstevel@tonic-gate #define SEGKPDEFSIZE (512 * 1024 * 1024) 94*0Sstevel@tonic-gate #define SEGKPMAXSIZE (512 * 1024 * 1024) 95*0Sstevel@tonic-gate #define SEGKPMINSIZE (512 * 1024 * 1024) 96*0Sstevel@tonic-gate #endif /* _LP64 */ 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate /* 99*0Sstevel@tonic-gate * The time for a process to be blocked before being very swappable. 100*0Sstevel@tonic-gate * This is a number of seconds which the system takes as being a non-trivial 101*0Sstevel@tonic-gate * amount of real time. You probably shouldn't change this; 102*0Sstevel@tonic-gate * it is used in subtle ways (fractions and multiples of it are, that is, like 103*0Sstevel@tonic-gate * half of a ``long time'', almost a long time, etc.) 104*0Sstevel@tonic-gate * It is related to human patience and other factors which don't really 105*0Sstevel@tonic-gate * change over time. 106*0Sstevel@tonic-gate */ 107*0Sstevel@tonic-gate #define MAXSLP 20 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate /* 110*0Sstevel@tonic-gate * A swapped in process is given a small amount of core without being bothered 111*0Sstevel@tonic-gate * by the page replacement algorithm. Basically this says that if you are 112*0Sstevel@tonic-gate * swapped in you deserve some resources. We protect the last SAFERSS 113*0Sstevel@tonic-gate * pages against paging and will just swap you out rather than paging you. 114*0Sstevel@tonic-gate * Note that each process has at least UPAGES pages which are not 115*0Sstevel@tonic-gate * paged anyways so this number just means a swapped in process is 116*0Sstevel@tonic-gate * given around 32k bytes. 117*0Sstevel@tonic-gate */ 118*0Sstevel@tonic-gate /* 119*0Sstevel@tonic-gate * nominal ``small'' resident set size 120*0Sstevel@tonic-gate * protected against replacement 121*0Sstevel@tonic-gate */ 122*0Sstevel@tonic-gate #define SAFERSS 3 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate /* 125*0Sstevel@tonic-gate * DISKRPM is used to estimate the number of paging i/o operations 126*0Sstevel@tonic-gate * which one can expect from a single disk controller. 127*0Sstevel@tonic-gate * 128*0Sstevel@tonic-gate * XXX - The system doesn't account for multiple swap devices. 129*0Sstevel@tonic-gate */ 130*0Sstevel@tonic-gate #define DISKRPM 60 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate /* 133*0Sstevel@tonic-gate * The maximum value for handspreadpages which is the the distance 134*0Sstevel@tonic-gate * between the two clock hands in pages. 135*0Sstevel@tonic-gate */ 136*0Sstevel@tonic-gate #define MAXHANDSPREADPAGES ((64 * 1024 * 1024) / PAGESIZE) 137*0Sstevel@tonic-gate 138*0Sstevel@tonic-gate /* 139*0Sstevel@tonic-gate * Paged text files that are less than PGTHRESH bytes 140*0Sstevel@tonic-gate * may be "prefaulted in" instead of demand paged. 141*0Sstevel@tonic-gate */ 142*0Sstevel@tonic-gate #define PGTHRESH (280 * 1024) 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate /* 145*0Sstevel@tonic-gate * Cacheable bit for 64 bit MXCC Stream Source registers 146*0Sstevel@tonic-gate */ 147*0Sstevel@tonic-gate #define BC_CACHE_SHIFT 36 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate /* 150*0Sstevel@tonic-gate * set type for 64 bit phys addr variables. Needed at least for interface 151*0Sstevel@tonic-gate * with MXCC. 152*0Sstevel@tonic-gate */ 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate #ifndef _ASM 155*0Sstevel@tonic-gate typedef unsigned long long pa_t; 156*0Sstevel@tonic-gate #endif 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate #ifdef __cplusplus 159*0Sstevel@tonic-gate } 160*0Sstevel@tonic-gate #endif 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate #endif /* _SYS_VM_MACHPARAM_H */ 163