142 lines
4.3 KiB
C
142 lines
4.3 KiB
C
/* $NetBSD: vmparam.h,v 1.2 2001/11/15 18:06:19 soren Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)vmparam.h 5.9 (Berkeley) 5/12/91
|
|
*/
|
|
|
|
#ifndef _VMPARAM_H_
|
|
#define _VMPARAM_H_
|
|
|
|
/*
|
|
* Machine dependent constants for 386.
|
|
*/
|
|
|
|
/*
|
|
* Page size on the x86-64 is not variable in the traditional sense.
|
|
* We override the PAGE_* definitions to compile-time constants.
|
|
*/
|
|
#define PAGE_SHIFT 12
|
|
#define PAGE_SIZE (1 << PAGE_SHIFT)
|
|
#define PAGE_MASK (PAGE_SIZE - 1)
|
|
|
|
/*
|
|
* USRTEXT is the start of the user text/data space, while USRSTACK
|
|
* is the top (end) of the user stack. Immediately above the user stack
|
|
* resides the user structure, which is UPAGES long and contains the
|
|
* kernel stack.
|
|
*
|
|
* Immediately after the user structure is the page table map, and then
|
|
* kernal address space.
|
|
*/
|
|
#define USRTEXT NBPG
|
|
#define USRSTACK VM_MAXUSER_ADDRESS
|
|
|
|
#define USRSTACK32 VM_MAXUSER_ADDRESS32
|
|
|
|
/*
|
|
* Virtual memory related constants, all in bytes
|
|
*/
|
|
#define MAXTSIZ (64*1024*1024) /* max text size */
|
|
#ifndef DFLDSIZ
|
|
#define DFLDSIZ (128*1024*1024) /* initial data size limit */
|
|
#endif
|
|
#ifndef MAXDSIZ
|
|
#define MAXDSIZ (1*1024*1024*1024) /* max data size */
|
|
#endif
|
|
#ifndef DFLSSIZ
|
|
#define DFLSSIZ (2*1024*1024) /* initial stack size limit */
|
|
#endif
|
|
#ifndef MAXSSIZ
|
|
#define MAXSSIZ (32*1024*1024) /* max stack size */
|
|
#endif
|
|
|
|
/*
|
|
* Size of shared memory map
|
|
*/
|
|
#ifndef SHMMAXPGS
|
|
#define SHMMAXPGS 2048
|
|
#endif
|
|
|
|
/*
|
|
* Size of User Raw I/O map
|
|
*/
|
|
#define USRIOSIZE 300
|
|
|
|
/*
|
|
* Mach derived constants
|
|
*/
|
|
|
|
/* user/kernel map constants */
|
|
#define VM_MIN_ADDRESS 0
|
|
#define VM_MAXUSER_ADDRESS 0x00007f7fffffc000
|
|
#define VM_MAX_ADDRESS 0x00007fbfdfeff000
|
|
#define VM_MIN_KERNEL_ADDRESS 0xffff800000000000
|
|
#define VM_MAX_KERNEL_ADDRESS 0xffff800080000000
|
|
|
|
#define VM_MAXUSER_ADDRESS32 0xffffc000
|
|
|
|
/*
|
|
* XXXfvdl we have plenty of KVM now, remove this.
|
|
*/
|
|
#ifndef VM_MAX_KERNEL_BUF
|
|
#define VM_MAX_KERNEL_BUF \
|
|
((VM_MAX_KERNEL_ADDRESS - VM_MIN_KERNEL_ADDRESS) / 1024 * 7 / 10 * 1024)
|
|
#endif
|
|
|
|
/* virtual sizes (bytes) for various kernel submaps */
|
|
#define VM_PHYS_SIZE (USRIOSIZE*NBPG)
|
|
|
|
#define VM_PHYSSEG_MAX 5 /* 1 "hole" + 4 free lists */
|
|
#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
|
|
#define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */
|
|
|
|
#define VM_NFREELIST 2
|
|
#define VM_FREELIST_DEFAULT 0
|
|
#define VM_FREELIST_FIRST16 1
|
|
|
|
#define __HAVE_PMAP_PHYSSEG
|
|
|
|
/*
|
|
* pmap specific data stored in the vm_physmem[] array
|
|
*/
|
|
struct pmap_physseg {
|
|
struct pv_head *pvhead; /* pv_head array */
|
|
char *attrs; /* attrs array */
|
|
};
|
|
|
|
#endif /* _VMPARAM_H_ */
|