136 lines
4.3 KiB
C
136 lines
4.3 KiB
C
/* $NetBSD: vmparam.h,v 1.5 2009/07/20 04:41:37 kiyohara Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* 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.
|
|
*
|
|
* @(#)vmparam.h 5.9 (Berkeley) 5/12/91
|
|
*/
|
|
|
|
#ifndef _VMPARAM_H_
|
|
#define _VMPARAM_H_
|
|
|
|
#include <sys/tree.h>
|
|
|
|
#define USRSTACK VM_MAX_ADDRESS /* XXX: Revisit vm address space. */
|
|
|
|
/*
|
|
* Virtual memory related constants, all in bytes
|
|
*/
|
|
#ifndef MAXTSIZ
|
|
#define MAXTSIZ (1<<30) /* max text size (1G) */
|
|
#endif
|
|
#ifndef DFLDSIZ
|
|
#define DFLDSIZ (1<<27) /* initial data size (128M) */
|
|
#endif
|
|
#ifndef MAXDSIZ
|
|
#define MAXDSIZ (1<<30) /* max data size (1G) */
|
|
#endif
|
|
#ifndef DFLSSIZ
|
|
#define DFLSSIZ (1<<21) /* initial stack size (2M) */
|
|
#endif
|
|
#ifndef MAXSSIZ
|
|
#define MAXSSIZ (1<<28) /* max stack size (256M) */
|
|
#endif
|
|
#ifndef SGROWSIZ
|
|
#define SGROWSIZ (128UL*1024) /* amount to grow stack */
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
* PTEs for mapping user space into the kernel for phyio operations.
|
|
* 64 pte's are enough to cover 8 disks * MAXBSIZE.
|
|
*/
|
|
#ifndef USRIOSIZE
|
|
#define USRIOSIZE 64
|
|
#endif
|
|
|
|
/*
|
|
* Manipulating region bits of an address.
|
|
*/
|
|
#define IA64_RR_BASE(n) (((uint64_t) (n)) << 61)
|
|
#define IA64_RR_MASK(x) ((x) & ((1L << 61) - 1))
|
|
|
|
#define IA64_PHYS_TO_RR6(x) ((x) | IA64_RR_BASE(6))
|
|
#define IA64_PHYS_TO_RR7(x) ((x) | IA64_RR_BASE(7))
|
|
|
|
#define IA64_ID_PAGE_SHIFT 28 /* 256M */
|
|
#define IA64_ID_PAGE_SIZE (1 << IA64_ID_PAGE_SHIFT)
|
|
#define IA64_ID_PAGE_MASK (IA64_ID_PAGE_SIZE-1)
|
|
|
|
#define IA64_BACKINGSTORE IA64_RR_BASE(4)
|
|
|
|
#define PAGE_SHIFT 14 /* 16K pages by default. */
|
|
#define PAGE_SIZE (1 << PAGE_SHIFT)
|
|
#define PAGE_MASK (PAGE_SIZE - 1)
|
|
|
|
/* user/kernel map constants */
|
|
#define VM_MIN_ADDRESS ((vaddr_t)0)
|
|
#define VM_MAX_ADDRESS ((vaddr_t) IA64_RR_BASE(5))
|
|
#define VM_GATEWAY_SIZE PAGE_SIZE
|
|
#define VM_MAXUSER_ADDRESS (VM_MAX_ADDRESS + VM_GATEWAY_SIZE)
|
|
#define VM_MIN_KERNEL_ADDRESS VM_MAXUSER_ADDRESS
|
|
#define VM_MAX_KERNEL_ADDRESS ((vaddr_t) (IA64_RR_BASE(6) - 1))
|
|
|
|
#define VM_PHYSSEG_MAX 16 /* XXX: */
|
|
#define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH
|
|
#define VM_PHYSSEG_NOADD /* no more after vm_mem_init */
|
|
|
|
#define VM_NFREELIST 1 /* XXX: */
|
|
#define VM_FREELIST_DEFAULT 0 /* XXX: */
|
|
|
|
/* virtual sizes (bytes) for various kernel submaps */
|
|
#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
|
|
|
|
#ifndef _LOCORE
|
|
|
|
#include <sys/queue.h>
|
|
#include <sys/mutex.h>
|
|
/*
|
|
* pmap-specific data store in the vm_page structure.
|
|
*/
|
|
#define __HAVE_VM_PAGE_MD
|
|
struct vm_page_md {
|
|
TAILQ_HEAD(,pv_entry) pv_list; /* pv_entry list */
|
|
int pv_list_count;
|
|
kmutex_t pv_mutex; /* lock on this head */
|
|
int pvh_attrs; /* page attributes */
|
|
};
|
|
|
|
#define VM_MDPAGE_INIT(pg) \
|
|
do { \
|
|
TAILQ_INIT(&(pg)->mdpage.pv_list); \
|
|
mutex_init(&(pg)->mdpage.pv_mutex, MUTEX_DEFAULT, IPL_NONE); \
|
|
} while (/*CONSTCOND*/0)
|
|
#endif /*_LOCORE*/
|
|
|
|
#endif /* _VMPARAM_H_ */
|