b34f6f7ab1
VM_PHYSSEG_SPARSE depending on whether the physical address space is densely or sparsely populated with memory. The effect of this definition is to determine which of two implementations of vm_page_array and PHYS_TO_VM_PAGE() is used. The legacy implementation is obtained by defining VM_PHYSSEG_DENSE, and a new implementation that trades off time for space is obtained by defining VM_PHYSSEG_SPARSE. For now, all architectures except for ia64 and sparc64 define VM_PHYSSEG_DENSE. Defining VM_PHYSSEG_SPARSE on ia64 allows the entirety of my Itanium 2's memory to be used. Previously, only the first 1 GB could be used. Defining VM_PHYSSEG_SPARSE on sparc64 allows USIIIi-based systems to boot without crashing. This change is a combination of Nathan Whitehorn's patch and my own work in perforce. Discussed with: kmacy, marius, Nathan Whitehorn PR: 112194
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/* $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
|
|
|
|
/*
|
|
* Override the default pager_map size, there's not enough KVA.
|
|
*/
|
|
|
|
/*
|
|
* max number of non-contig chunks of physical RAM you can have
|
|
*/
|
|
|
|
#define VM_PHYSSEG_MAX 32
|
|
|
|
/*
|
|
* when converting a physical address to a vm_page structure, we
|
|
* want to use a binary search on the chunks of physical memory
|
|
* to find our RAM
|
|
*/
|
|
|
|
#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
|
|
|
|
/*
|
|
* this indicates that we can't add RAM to the VM system after the
|
|
* vm system is init'd.
|
|
*/
|
|
|
|
#define VM_PHYSSEG_NOADD
|
|
|
|
/*
|
|
* The physical address space is densely populated.
|
|
*/
|
|
#define VM_PHYSSEG_DENSE
|
|
|
|
/*
|
|
* 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
|
|
|
|
#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
|
|
#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 */
|
|
#define VM_MAXUSER_ADDRESS KERNBASE
|
|
#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 0xffffffff
|
|
/*
|
|
* Virtual size (bytes) for various kernel submaps.
|
|
*/
|
|
|
|
#ifndef VM_KMEM_SIZE
|
|
#define VM_KMEM_SIZE (12*1024*1024)
|
|
#endif
|
|
|
|
#define MAXTSIZ (16*1024*1024)
|
|
#define DFLDSIZ (128*1024*1024)
|
|
#define MAXDSIZ (512*1024*1024)
|
|
#define DFLSSIZ (2*1024*1024)
|
|
#define MAXSSIZ (8*1024*1024)
|
|
#define SGROWSIZ (128*1024)
|
|
#define MAXSLP 20
|
|
|
|
#define VM_PROT_READ_IS_EXEC
|
|
|
|
#ifdef ARM_USE_SMALL_ALLOC
|
|
#define UMA_MD_SMALL_ALLOC
|
|
#endif /* ARM_USE_SMALL_ALLOC */
|
|
#endif /* _MACHINE_VMPARAM_H_ */
|