Annotation of sys/arch/sparc/include/vmparam.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: vmparam.h,v 1.31 2005/04/17 18:47:48 miod Exp $ */
! 2: /* $NetBSD: vmparam.h,v 1.13 1997/07/12 16:20:03 perry Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1992, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * This software was developed by the Computer Systems Engineering group
! 9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
! 10: * contributed to Berkeley.
! 11: *
! 12: * All advertising materials mentioning features or use of this software
! 13: * must display the following acknowledgement:
! 14: * This product includes software developed by the University of
! 15: * California, Lawrence Berkeley Laboratory.
! 16: *
! 17: * Redistribution and use in source and binary forms, with or without
! 18: * modification, are permitted provided that the following conditions
! 19: * are met:
! 20: * 1. Redistributions of source code must retain the above copyright
! 21: * notice, this list of conditions and the following disclaimer.
! 22: * 2. Redistributions in binary form must reproduce the above copyright
! 23: * notice, this list of conditions and the following disclaimer in the
! 24: * documentation and/or other materials provided with the distribution.
! 25: * 3. Neither the name of the University nor the names of its contributors
! 26: * may be used to endorse or promote products derived from this software
! 27: * without specific prior written permission.
! 28: *
! 29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 39: * SUCH DAMAGE.
! 40: *
! 41: * @(#)vmparam.h 8.1 (Berkeley) 6/11/93
! 42: */
! 43:
! 44: #ifndef _SPARC_VMPARAM_H_
! 45: #define _SPARC_VMPARAM_H_
! 46:
! 47: /*
! 48: * Machine dependent constants for Sun-4c SPARC
! 49: */
! 50:
! 51: /*
! 52: * USRTEXT is the start of the user text/data space, while USRSTACK
! 53: * is the top (end) of the user stack.
! 54: */
! 55: #define USRTEXT 0x2000 /* Start of user text */
! 56: #define USRSTACK VM_MIN_KERNEL_ADDRESS /* Start of user stack */
! 57:
! 58: /*
! 59: * Virtual memory related constants, all in bytes
! 60: */
! 61: #ifndef MAXTSIZ
! 62: #define MAXTSIZ (16*1024*1024) /* max text size */
! 63: #endif
! 64: #ifndef DFLDSIZ
! 65: #define DFLDSIZ (32*1024*1024) /* initial data size limit */
! 66: #endif
! 67: #ifndef MAXDSIZ
! 68: #define MAXDSIZ (128*1024*1024) /* max data size */
! 69: #endif
! 70: #ifndef DFLSSIZ
! 71: #define DFLSSIZ (512*1024) /* initial stack size limit */
! 72: #endif
! 73: #ifndef MAXSSIZ
! 74: #define MAXSSIZ MAXDSIZ /* max stack size */
! 75: #endif
! 76:
! 77: #define STACKGAP_RANDOM 64*1024
! 78: #define STACKGAP_RANDOM_SUN4M 256*1024
! 79:
! 80: /*
! 81: * Size of shared memory map
! 82: */
! 83: #ifndef SHMMAXPGS
! 84: #define SHMMAXPGS 1024
! 85: #endif
! 86:
! 87: /*
! 88: * User/kernel map constants. Note that sparc/vaddrs.h defines the
! 89: * IO space virtual base, which must be the same as VM_MAX_KERNEL_ADDRESS:
! 90: * tread with care.
! 91: */
! 92: #define VM_MIN_ADDRESS ((vaddr_t)0)
! 93: #define VM_MAX_ADDRESS ((vaddr_t)VM_MIN_KERNEL_ADDRESS)
! 94: #define VM_MAXUSER_ADDRESS ((vaddr_t)VM_MIN_KERNEL_ADDRESS)
! 95: #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)KERNBASE)
! 96: #define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xfe000000)
! 97:
! 98: #define IOSPACE_BASE VM_MAX_KERNEL_ADDRESS
! 99: #define IOSPACE_LEN 0x01000000 /* 16 MB of iospace */
! 100:
! 101: #define VM_PHYSSEG_MAX 32 /* we only have one "hole" */
! 102: #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
! 103: #define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */
! 104:
! 105: /*
! 106: * pmap specific data stored in the vm_physmem[] array
! 107: */
! 108:
! 109:
! 110: /* XXX - belongs in pmap.h, but put here because of ordering issues */
! 111: struct pvlist {
! 112: struct pvlist *pv_next; /* next pvlist, if any */
! 113: struct pmap *pv_pmap; /* pmap of this va */
! 114: vaddr_t pv_va; /* virtual address */
! 115: int pv_flags; /* flags (below) */
! 116: };
! 117:
! 118: #define __HAVE_VM_PAGE_MD
! 119: struct vm_page_md {
! 120: struct pvlist pv_head;
! 121: };
! 122:
! 123: #define VM_MDPAGE_INIT(pg) do { \
! 124: (pg)->mdpage.pv_head.pv_next = NULL; \
! 125: (pg)->mdpage.pv_head.pv_pmap = NULL; \
! 126: (pg)->mdpage.pv_head.pv_va = 0; \
! 127: (pg)->mdpage.pv_head.pv_flags = 0; \
! 128: } while (0)
! 129:
! 130: #define VM_NFREELIST 1
! 131: #define VM_FREELIST_DEFAULT 0
! 132:
! 133: #if defined (_KERNEL) && !defined(_LOCORE)
! 134: struct vm_map;
! 135: #define dvma_mapin(map,va,len,canwait) dvma_mapin_space(map,va,len,canwait,0)
! 136: vaddr_t dvma_mapin_space(struct vm_map *, vaddr_t, int, int, int);
! 137: void dvma_mapout(vaddr_t, vaddr_t, int);
! 138: #endif
! 139:
! 140: #endif /* _SPARC_VMPARAM_H_ */
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