1 /* $NetBSD: vmparam.h,v 1.32 2002/12/10 05:14:33 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)vmparam.h 8.1 (Berkeley) 6/11/93 45 */ 46 47 #ifndef _SPARC_VMPARAM_H_ 48 #define _SPARC_VMPARAM_H_ 49 50 /* 51 * Machine dependent constants for Sun-4c SPARC 52 */ 53 54 #include <machine/param.h> 55 56 /* 57 * USRSTACK is the top (end) of the user stack. 58 */ 59 #define USRSTACK KERNBASE /* Start of user stack */ 60 61 /* 62 * Virtual memory related constants, all in bytes 63 */ 64 #ifndef MAXTSIZ 65 #define MAXTSIZ (64*1024*1024) /* max text size */ 66 #endif 67 #ifndef DFLDSIZ 68 #define DFLDSIZ (64*1024*1024) /* initial data size limit */ 69 #endif 70 #ifndef MAXDSIZ 71 #define MAXDSIZ (256*1024*1024) /* max data size */ 72 #endif 73 #ifndef DFLSSIZ 74 #define DFLSSIZ (2*1024*1024) /* initial stack size limit */ 75 #endif 76 #ifndef MAXSSIZ 77 #define MAXSSIZ MAXDSIZ /* max stack size */ 78 #endif 79 80 /* 81 * Size of shared memory map 82 */ 83 #ifndef SHMMAXPGS 84 #define SHMMAXPGS 1024 85 #endif 86 87 /* 88 * Mach derived constants 89 */ 90 91 /* 92 * User/kernel map constants. Note that sparc/vaddrs.h defines the 93 * IO space virtual base, which must be the same as VM_MAX_KERNEL_ADDRESS: 94 * tread with care. 95 */ 96 #define VM_MIN_ADDRESS ((vaddr_t)0) 97 #define VM_MAX_ADDRESS ((vaddr_t)KERNBASE) 98 #define VM_MAXUSER_ADDRESS ((vaddr_t)KERNBASE) 99 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)KERNBASE) 100 #define VM_MAX_KERNEL_ADDRESS ((vaddr_t)KERNEND) 101 102 #define VM_PHYSSEG_MAX 32 /* up to 32 segments */ 103 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 104 #define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */ 105 106 #define VM_NFREELIST 1 107 #define VM_FREELIST_DEFAULT 0 108 109 #if !defined(_LKM) 110 /* 111 * Make the VM PAGE_* macros constants, if possible. 112 */ 113 #if NBPG == 4096 || NBPG == 8192 114 #define PAGE_SIZE NBPG 115 #define PAGE_SHIFT PGSHIFT 116 #define PAGE_MASK (NBPG-1) 117 #endif 118 #endif /* _LKM */ 119 120 #define __HAVE_PMAP_PHYSSEG 121 122 /* 123 * pmap specific data stored in the vm_physmem[] array 124 */ 125 struct pvlist; 126 struct pmap_physseg { 127 struct pvlist *pvhead; 128 }; 129 #endif /* _SPARC_VMPARAM_H_ */ 130