138 lines
4.2 KiB
C
138 lines
4.2 KiB
C
/* $NetBSD: vmparam.h,v 1.10 2001/11/23 18:16:11 thorpej 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. 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, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*/
|
|
|
|
#ifndef _HPCARM_VMPARAM_H_
|
|
#define _HPCARM_VMPARAM_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <arm/arm32/vmparam.h>
|
|
|
|
/*
|
|
* Address space constants
|
|
*/
|
|
|
|
#ifndef HPCARM
|
|
/*
|
|
* The line between user space and kernel space
|
|
* Mappings >= KERNEL_SPACE_START are constant across all processes
|
|
*/
|
|
#define KERNEL_SPACE_START 0xf0000000
|
|
|
|
/* Various constants used by the MD code*/
|
|
#define KERNEL_BASE 0xf0000000
|
|
#define KERNEL_TEXT_BASE KERNEL_BASE
|
|
#define ALT_PAGE_TBLS_BASE 0xf0c00000
|
|
#define KERNEL_VM_BASE 0xf1000000
|
|
#else /* defined(HPCARM) */
|
|
#define KERNEL_SPACE_START 0xc0000000
|
|
#define KERNEL_BASE 0xc0040000
|
|
#define KERNEL_TEXT_BASE KERNEL_BASE
|
|
#define ALT_PAGE_TBLS_BASE 0xc0800000
|
|
#define KERNEL_VM_BASE 0xc0c00000
|
|
#endif /* defined(HPCARM) */
|
|
|
|
/*
|
|
* The Kernel VM Size varies depending on the machine depending on how
|
|
* much space is needed (and where) for other mappings.
|
|
* In some cases the chosen value may not be the maximum in order that
|
|
* we don't waste memory with kernel pages tables as we can't currently
|
|
* grow the kernel page tables after booting.
|
|
* You only need to increase these values if you find that the number of
|
|
* buffers is being limited due to lack of VA space.
|
|
*/
|
|
#ifdef HPCARM
|
|
#define KERNEL_VM_SIZE 0x03000000
|
|
#endif
|
|
|
|
#define PROCESS_PAGE_TBLS_BASE PAGE_TABLE_SPACE_START
|
|
|
|
/*
|
|
* Override the default pager_map size, there's not enough KVA.
|
|
*/
|
|
#define PAGER_MAP_SIZE (4 * 1024 * 1024)
|
|
|
|
/*
|
|
* Size of User Raw I/O map
|
|
*/
|
|
|
|
#define USRIOSIZE 300
|
|
|
|
/* XXX max. amount of KVM to be used by buffers. */
|
|
#ifndef VM_MAX_KERNEL_BUF
|
|
#define VM_MAX_KERNEL_BUF \
|
|
((VM_MAXKERN_ADDRESS - KERNEL_VM_BASE) * 4 / 10)
|
|
#endif
|
|
|
|
/* virtual sizes (bytes) for various kernel submaps */
|
|
|
|
#define VM_PHYS_SIZE (USRIOSIZE*NBPG)
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* 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
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _HPCARM_VMPARAM_H_ */
|