text: /* 	$OpenBSD: vmparam.h,v 1.10 2015/06/24 21:35:00 miod 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 armish to have bigger DSIZ 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
  
  #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		1
  #define	VM_PHYSSEG_STRAT	VM_PSTRAT_RANDOM
  
  /*
   * 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_ */
  