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/* $OpenBSD: vmparam.h,v 1.8 2010/12/15 05:30:19 tedu Exp $ */
/* $NetBSD: vmparam.h,v 1.17 2006/03/04 01:55:03 uwe Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _SH_VMPARAM_H_
#define _SH_VMPARAM_H_
#include <sys/queue.h>
/* Virtual address map. */
#define VM_MIN_ADDRESS ((vaddr_t)PAGE_SIZE)
#define VM_MAXUSER_ADDRESS ((vaddr_t)0x7ffff000)
#define VM_MAX_ADDRESS ((vaddr_t)0x7ffff000)
#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)0xc0000000)
#define VM_MAX_KERNEL_ADDRESS ((vaddr_t)0xe0000000)
/* map PIE below 4MB (non-pie link address) to avoid mmap pressure */
#define VM_PIE_MIN_ADDR PAGE_SIZE
#define VM_PIE_MAX_ADDR 0x400000UL
/* top of stack */
#define USRSTACK VM_MAXUSER_ADDRESS
/* Virtual memory resource limit. */
#define MAXTSIZ (64 * 1024 * 1024) /* max text size */
#ifndef MAXDSIZ
#define MAXDSIZ (512 * 1024 * 1024) /* max data size */
#endif
#ifndef BRKSIZ
#define BRKSIZ MAXDSIZ /* heap gap size */
#endif
#ifndef MAXSSIZ
#define MAXSSIZ (32 * 1024 * 1024) /* max stack size */
#endif
/* initial data size limit */
#ifndef DFLDSIZ
#define DFLDSIZ (128 * 1024 * 1024)
#endif
/* initial stack size limit */
#ifndef DFLSSIZ
#define DFLSSIZ (2 * 1024 * 1024)
#endif
#define STACKGAP_RANDOM (256 * 1024)
/*
* Size of shared memory map
*/
#ifndef SHMMAXPGS
#define SHMMAXPGS 1024
#endif
/* Size of user raw I/O map */
#ifndef USRIOSIZE
#define USRIOSIZE (MAXBSIZE / PAGE_SIZE * 8)
#endif
#define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE)
/* pmap-specific data store in the vm_page structure. */
#define __HAVE_VM_PAGE_MD
#define PVH_REFERENCED 1
#define PVH_MODIFIED 2
#ifndef _LOCORE
struct pv_entry;
struct vm_page_md {
SLIST_HEAD(, pv_entry) pvh_head;
int pvh_flags;
};
#define VM_MDPAGE_INIT(pg) \
do { \
struct vm_page_md *pvh = &(pg)->mdpage; \
SLIST_INIT(&pvh->pvh_head); \
pvh->pvh_flags = 0; \
} while (/*CONSTCOND*/0)
#endif /* _LOCORE */
#endif /* !_SH_VMPARAM_H_ */
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