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/* $NetBSD: vmparam.h,v 1.26 2003/08/07 16:27:47 agc 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_VMPARAM_H_
#define _MACHINE_VMPARAM_H_
/*#include <arm/arm32/vmparam.h>
*/
/*
* Address space constants
*/
/*
* The line between user space and kernel space
* Mappings >= KERNEL_BASE are constant across all processes
*/
#define KERNBASE 0xc0000000
/*
* max number of non-contig chunks of physical RAM you can have
*/
#define VM_PHYSSEG_MAX 32
/*
* The physical address space is densely populated.
*/
#define VM_PHYSSEG_DENSE
/*
* Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool
* from which physical pages are allocated and VM_FREEPOOL_DIRECT is
* the pool from which physical pages for small UMA objects are
* allocated.
*/
#define VM_NFREEPOOL 3
#define VM_FREEPOOL_CACHE 2
#define VM_FREEPOOL_DEFAULT 0
#define VM_FREEPOOL_DIRECT 1
/*
* we support 2 free lists:
*
* - DEFAULT for all systems
* - ISADMA for the ISA DMA range on Sharks only
*/
#define VM_NFREELIST 2
#define VM_FREELIST_DEFAULT 0
#define VM_FREELIST_ISADMA 1
/*
* The largest allocation size is 1MB.
*/
#define VM_NFREEORDER 9
/*
* Only one memory domain.
*/
#ifndef VM_NDOMAIN
#define VM_NDOMAIN 1
#endif
/*
* Disable superpage reservations.
*/
#ifndef VM_NRESERVLEVEL
#define VM_NRESERVLEVEL 0
#endif
#define UPT_MAX_ADDRESS VADDR(UPTPTDI + 3, 0)
#define UPT_MIN_ADDRESS VADDR(UPTPTDI, 0)
#define VM_MIN_ADDRESS (0x00001000)
#ifdef ARM_USE_SMALL_ALLOC
/*
* ARM_KERN_DIRECTMAP is used to make sure there's enough space between
* VM_MAXUSER_ADDRESS and KERNBASE to map the whole memory.
* It has to be a compile-time constant, even if arm_init_smallalloc(),
* which will do the mapping, gets the real amount of memory at runtime,
* because VM_MAXUSER_ADDRESS is a constant.
*/
#ifndef ARM_KERN_DIRECTMAP
#define ARM_KERN_DIRECTMAP 512 * 1024 * 1024 /* 512 MB */
#endif
#define VM_MAXUSER_ADDRESS KERNBASE - ARM_KERN_DIRECTMAP
#else /* ARM_USE_SMALL_ALLOC */
#ifndef VM_MAXUSER_ADDRESS
#define VM_MAXUSER_ADDRESS KERNBASE
#endif /* VM_MAXUSER_ADDRESS */
#endif /* ARM_USE_SMALL_ALLOC */
#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS
#define USRSTACK VM_MAXUSER_ADDRESS
/* initial pagein size of beginning of executable file */
#ifndef VM_INITIAL_PAGEIN
#define VM_INITIAL_PAGEIN 16
#endif
#ifndef VM_MIN_KERNEL_ADDRESS
#define VM_MIN_KERNEL_ADDRESS KERNBASE
#endif
#define VM_MAX_KERNEL_ADDRESS (vm_max_kernel_address)
/*
* Virtual size (bytes) for various kernel submaps.
*/
#ifndef VM_KMEM_SIZE
#define VM_KMEM_SIZE (12*1024*1024)
#endif
#ifndef VM_KMEM_SIZE_SCALE
#define VM_KMEM_SIZE_SCALE (2)
#endif
/*
* Ceiling on the size of the kmem submap: 60% of the kernel map.
*/
#ifndef VM_KMEM_SIZE_MAX
#define VM_KMEM_SIZE_MAX ((vm_max_kernel_address - \
VM_MIN_KERNEL_ADDRESS + 1) * 3 / 5)
#endif
#define MAXTSIZ (16*1024*1024)
#ifndef DFLDSIZ
#define DFLDSIZ (128*1024*1024)
#endif
#ifndef MAXDSIZ
#define MAXDSIZ (512*1024*1024)
#endif
#ifndef DFLSSIZ
#define DFLSSIZ (2*1024*1024)
#endif
#ifndef MAXSSIZ
#define MAXSSIZ (8*1024*1024)
#endif
#ifndef SGROWSIZ
#define SGROWSIZ (128*1024)
#endif
#ifdef ARM_USE_SMALL_ALLOC
#define UMA_MD_SMALL_ALLOC
#endif /* ARM_USE_SMALL_ALLOC */
extern vm_offset_t vm_max_kernel_address;
#define ZERO_REGION_SIZE (64 * 1024) /* 64KB */
#endif /* _MACHINE_VMPARAM_H_ */
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