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/* $OpenBSD: vmparam.h,v 1.7 2022/01/11 16:54:58 kettenis Exp $ */
/* $NetBSD: vmparam.h,v 1.23 2003/05/22 05:47:07 thorpej Exp $ */
/*
* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
* 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. 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.
*/
#ifndef _MACHINE_VMPARAM_H_
#define _MACHINE_VMPARAM_H_
#define ARM_KERNEL_BASE 0xc0000000U
/* Allow armv7 to have bigger limits than generic arm, allow user to override */
#ifndef MAXDSIZ
#define MAXDSIZ (1024*1024*1024) /* max data size */
#endif
#ifndef BRKSIZ
#define BRKSIZ MAXDSIZ /* heap gap size */
#endif
#ifndef DFLSSIZ
#define DFLSSIZ (4*1024*1024) /* initial stack size limit */
#endif
#ifndef MAXSSIZ
#define MAXSSIZ (32*1024*1024) /* max stack size */
#endif
#include <arm/vmparam.h>
#ifdef _KERNEL
/*
* Address space constants
*/
/*
* The line between user space and kernel space
* Mappings >= KERNEL_BASE are constant across all processes
*/
#define KERNEL_BASE ARM_KERNEL_BASE
#define VM_KERNEL_SPACE_SIZE 0x20000000
/*
* Override the default pager_map size, there's not enough KVA.
*/
#define PAGER_MAP_SIZE (4 * 1024 * 1024)
/*
* Size of User Raw I/O map
*/
#define USRIOSIZE 300
/* virtual sizes (bytes) for various kernel submaps */
#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
/*
* max number of non-contig chunks of physical RAM you can have
*/
#define VM_PHYSSEG_MAX 32
#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
/*
* this indicates that we can't add RAM to the VM system after the
* vm system is init'd.
*/
#define VM_PHYSSEG_NOADD
#endif /* _KERNEL */
#endif /* _MACHINE_VMPARAM_H_ */
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