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/* $OpenBSD: vmparam.h,v 1.20 2008/07/18 16:40:17 kurt Exp $ */
/* $NetBSD: vmparam.h,v 1.1 1996/09/30 16:34:38 ws Exp $ */
/*-
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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 USRTEXT PAGE_SIZE
#define USRSTACK VM_MAXUSER_ADDRESS
#ifndef MAXTSIZ
#define MAXTSIZ (64*1024*1024) /* max text size */
#endif
#ifndef DFLDSIZ
#define DFLDSIZ (64*1024*1024) /* default data size */
#endif
#ifndef MAXDSIZ
#define MAXDSIZ (512*1024*1024) /* max data size */
#endif
#ifndef DFLSSIZ
#define DFLSSIZ (1*1024*1024) /* default stack size */
#endif
#ifndef MAXSSIZ
#define MAXSSIZ (32*1024*1024) /* max stack size */
#endif
#define STACKGAP_RANDOM 256*1024
/*
* Size of shared memory map
*/
#ifndef SHMMAXPGS
#define SHMMAXPGS 8192 /* 32mb */
#endif
/*
* Size of User Raw I/O map
*/
#define USRIOSIZE 1024
/*
* Would like to have MAX addresses = 0, but this doesn't (currently) work
*/
#define VM_MIN_ADDRESS ((vaddr_t)0)
#define VM_MAXUSER_ADDRESS ((vaddr_t)0xfffff000)
#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS
#define VM_MIN_KERNEL_ADDRESS ((vaddr_t)(PPC_KERNEL_SR << ADDR_SR_SHIFT))
/* map PIE into approximately the first quarter of user va space */
#define VM_PIE_MIN_ADDR PAGE_SIZE
#define VM_PIE_MAX_ADDR 0x40000000
/* ppc_kvm_stolen is so that vm space can be stolen before vm is fully
* initialized.
*/
extern vaddr_t ppc_kvm_stolen;
#define VM_KERN_ADDRESS_SIZE (PPC_SEGMENT_LENGTH - (32 * 1024 * 1024))
#define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + VM_KERN_ADDRESS_SIZE)
#define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE)
#define VM_PHYSSEG_MAX 32 /* actually we could have this many segments */
#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
#define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */
#define VM_NFREELIST 1
#define VM_FREELIST_DEFAULT 0
#ifdef _KERNEL
#define __HAVE_VM_PAGE_MD
struct pv_entry;
struct vm_page_md {
LIST_HEAD(,pte_desc) pv_list;
};
#define VM_MDPAGE_INIT(pg) do { \
LIST_INIT(&((pg)->mdpage.pv_list)); \
} while (0)
#endif
#endif
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