84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
136 lines
4.4 KiB
C
136 lines
4.4 KiB
C
/* $NetBSD: vmparam.h,v 1.76 2012/11/13 14:10:24 chs 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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* 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. 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 _I386_VMPARAM_H_
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#define _I386_VMPARAM_H_
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#include <sys/tree.h>
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#include <sys/mutex.h>
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/*
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* Machine dependent constants for 386.
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*/
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/*
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* Page size on the IA-32 is not variable in the traditional sense.
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* We override the PAGE_* definitions to 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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* Virtual address space arrangement. On 386, both user and kernel
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* share the address space, not unlike the vax.
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* USRSTACK is the top (end) of the user stack. Immediately above the
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* user stack is the page table map, and then kernel address space.
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*/
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#define USRSTACK VM_MAXUSER_ADDRESS
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/*
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* Virtual memory related constants, all in bytes
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*/
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#define MAXTSIZ (256*1024*1024) /* max text size */
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#ifndef DFLDSIZ
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#define DFLDSIZ (256*1024*1024) /* initial data size limit */
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#endif
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#ifndef MAXDSIZ
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#define MAXDSIZ (3U*1024*1024*1024) /* max data size */
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#endif
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#ifndef DFLSSIZ
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#define DFLSSIZ (2*1024*1024) /* initial stack size limit */
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#endif
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#ifndef MAXSSIZ
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#define MAXSSIZ (64*1024*1024) /* max stack size */
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#endif
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/*
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* IA-32 can't do per-page execute permission, so instead we implement
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* two executable segments for %cs, one that covers everything and one
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* that excludes some of the address space (currently just the stack).
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* I386_MAX_EXE_ADDR is the upper boundary for the smaller segment.
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*/
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#define I386_MAX_EXE_ADDR (USRSTACK - MAXSSIZ)
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/*
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* Size of User Raw I/O map
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*/
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#define USRIOSIZE 300
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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)(PDIR_SLOT_PTE << L2_SHIFT))
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#define VM_MAX_ADDRESS \
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((vaddr_t)((PDIR_SLOT_PTE << L2_SHIFT) + (PDIR_SLOT_PTE << L1_SHIFT)))
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#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)(PDIR_SLOT_KERN << L2_SHIFT))
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#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)((PDIR_SLOT_KERN + NKL2_MAX_ENTRIES) << L2_SHIFT))
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/*
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* The address to which unspecified mapping requests default
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*/
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#ifdef _KERNEL_OPT
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#include "opt_uvm.h"
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#include "opt_xen.h"
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#endif
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#define __USE_TOPDOWN_VM
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#define VM_DEFAULT_ADDRESS(da, sz) \
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trunc_page(USRSTACK - MAXSSIZ - (sz))
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/* XXX max. amount of KVM to be used by buffers. */
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#ifndef VM_MAX_KERNEL_BUF
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#define VM_MAX_KERNEL_BUF (384 * 1024 * 1024)
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#endif
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/* virtual sizes (bytes) for various kernel submaps */
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#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
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#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
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#ifdef XEN
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#define VM_PHYSSEG_MAX 1
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#define VM_NFREELIST 1
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#else
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#define VM_PHYSSEG_MAX 32 /* 1 "hole" + 31 free lists */
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#define VM_NFREELIST 2
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#define VM_FREELIST_FIRST16 1
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#endif /* XEN */
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#define VM_FREELIST_DEFAULT 0
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#endif /* _I386_VMPARAM_H_ */
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