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/* $OpenBSD: vmparam.h,v 1.48 2015/09/21 00:24:21 tobiasu Exp $ */
/* $NetBSD: vmparam.h,v 1.13 1997/07/12 16:20:03 perry Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory.
*
* 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.
*
* @(#)vmparam.h 8.1 (Berkeley) 6/11/93
*/
#ifndef _MACHINE_VMPARAM_H_
#define _MACHINE_VMPARAM_H_
/*
* Machine dependent constants for SPARC
*/
/*
* Virtual memory related constants, all in bytes
*/
#ifndef MAXTSIZ
#define MAXTSIZ (64*1024*1024) /* max text size */
#endif
#ifndef DFLDSIZ
#define DFLDSIZ (64*1024*1024) /* initial data size limit */
#endif
#ifndef MAXDSIZ
#define MAXDSIZ (256*1024*1024) /* max data size */
#endif
#ifndef BRKSIZ
#define BRKSIZ MAXDSIZ /* heap gap 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
#define STACKGAP_RANDOM 64*1024
#define STACKGAP_RANDOM_SUN4M 256*1024
/*
* Size of shared memory map
*/
#ifndef SHMMAXPGS
#define SHMMAXPGS 1024
#endif
/*
* User/kernel map constants. Note that sparc/vaddrs.h defines the
* IO space virtual base, which must be the same as VM_MAX_KERNEL_ADDRESS:
* tread with care.
*/
#define VM_MIN_KERNEL_ADDRESS_OLD ((vaddr_t)KERNBASE)
#define VM_MIN_KERNEL_ADDRESS_SUN4 ((vaddr_t)0xf0000000)
#define VM_MIN_KERNEL_ADDRESS_SRMMU ((vaddr_t)0xc0000000)
#if (defined(SUN4) || defined(SUN4C) || defined(SUN4E)) && \
(defined(SUN4D) || defined(SUN4M))
/* user/kernel bound will de determined at run time */
extern vsize_t vm_kernel_space_size;
#define VM_KERNEL_SPACE_SIZE vm_kernel_space_size
#define VM_MAXUSER_ADDRESS vm_min_kernel_address
#define VM_MAX_ADDRESS vm_min_kernel_address
#define USRSTACK vm_min_kernel_address
#elif (defined(SUN4) || defined(SUN4C) || defined(SUN4E))
/* old Sun MMU with address hole */
#define VM_MIN_KERNEL_ADDRESS VM_MIN_KERNEL_ADDRESS_SUN4
#define VM_MAXUSER_ADDRESS VM_MIN_KERNEL_ADDRESS
#define VM_MAX_ADDRESS VM_MIN_KERNEL_ADDRESS
#define USRSTACK VM_MIN_KERNEL_ADDRESS
#else
/* SRMMU without address hole */
#define VM_MIN_KERNEL_ADDRESS VM_MIN_KERNEL_ADDRESS_SRMMU
#define VM_MAXUSER_ADDRESS VM_MIN_KERNEL_ADDRESS
#define VM_MAX_ADDRESS VM_MIN_KERNEL_ADDRESS
#define USRSTACK VM_MIN_KERNEL_ADDRESS
#endif
#define VM_MIN_ADDRESS ((vaddr_t)0x2000)
#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xfe000000)
extern vaddr_t vm_pie_max_addr;
#define VM_PIE_MAX_ADDR vm_pie_max_addr
#define IOSPACE_BASE VM_MAX_KERNEL_ADDRESS
#define IOSPACE_LEN 0x01000000 /* 16 MB of iospace */
#define VM_PHYSSEG_MAX 32 /* we only have one "hole" */
#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
#define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */
#if defined (_KERNEL)
void dvma_mapout(vaddr_t, vaddr_t, int);
#endif
#endif /* _MACHINE_VMPARAM_H_ */
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