9d6e94072b
These are the same values that the hp300 port uses (lesser hp300s have roughly the same memory constraints as "lesser" vaxen), and bumping them allows us to run a statically linked ELF groff(1).
129 lines
4.0 KiB
C
129 lines
4.0 KiB
C
/* $NetBSD: vmparam.h,v 1.37 2002/02/19 22:44:35 thorpej Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Slightly modified for the VAX port /IC
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)vmparam.h 5.9 (Berkeley) 5/12/91
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*/
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#ifndef _VMPARAM_H_
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#define _VMPARAM_H_
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/*
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* Machine dependent constants for VAX.
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*/
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/*
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* We use 4K VM pages on the VAX. Override the PAGE_* definitions
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* to be compile-time constants.
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*/
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK (PAGE_SIZE - 1)
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/*
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* USRTEXT is the start of the user text/data space, while USRSTACK
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* is the top (end) of the user stack. Immediately above the user stack
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* resides kernel.
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*
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*/
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#define USRTEXT NBPG
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#define USRSTACK KERNBASE
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/*
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* Virtual memory related constants, all in bytes
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*/
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#ifndef MAXTSIZ
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#define MAXTSIZ (8*1024*1024) /* max text size */
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#endif
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#ifndef DFLDSIZ
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#define DFLDSIZ (32*1024*1024) /* initial data size limit */
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#endif
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#ifndef MAXDSIZ
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#define MAXDSIZ (64*1024*1024) /* max data size */
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#endif
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#ifndef DFLSSIZ
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#define DFLSSIZ (512*1024) /* initial stack size limit */
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#endif
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#ifndef MAXSSIZ
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#define MAXSSIZ (8*1024*1024) /* max stack size */
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#endif
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/*
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* All mmap()'ed data will be mapped above MAXDSIZ. This means that
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* pte space must be allocated for (possible) mmap()'ed data.
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* Note: This is just a hint, if we mmap() more than this the page
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* table will be expanded. (at the cost of speed).
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*/
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#define MMAPSPACE (8*1024*1024)
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/*
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* Size of shared memory map
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*/
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#ifndef SHMMAXPGS
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#define SHMMAXPGS 64 /* XXXX should be 1024 */
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#endif
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#define VM_PHYSSEG_MAX 1
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#define VM_PHYSSEG_NOADD
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#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH /* XXX */
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#define VM_NFREELIST 1
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#define VM_FREELIST_DEFAULT 0
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/* MD round macros */
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#define vax_round_page(x) (((vaddr_t)(x) + VAX_PGOFSET) & ~VAX_PGOFSET)
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#define vax_trunc_page(x) ((vaddr_t)(x) & ~VAX_PGOFSET)
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/*
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* Mach derived constants
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*/
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/* user/kernel map constants */
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#define VM_MIN_ADDRESS ((vaddr_t)0)
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#define VM_MAXUSER_ADDRESS ((vaddr_t)KERNBASE)
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#define VM_MAX_ADDRESS ((vaddr_t)KERNBASE)
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#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)KERNBASE)
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#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)(0xC0000000))
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#define USRIOSIZE (8 * VAX_NPTEPG) /* 512MB */
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#define VM_PHYS_SIZE (USRIOSIZE*VAX_NBPG)
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#endif
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