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/* $FreeBSD: release/9.1.0/sys/ia64/include/param.h 224217 2011-07-19 13:00:30Z attilio $ */
/* From: NetBSD: param.h,v 1.20 1997/09/19 13:52:53 leo Exp */

/*-
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department and Ralph Campbell.
 *
 * 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.
 * 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.
 *
 * from: Utah $Hdr: machparam.h 1.11 89/08/14$
 *
 *	@(#)param.h	8.1 (Berkeley) 6/10/93
 */

#ifndef _IA64_INCLUDE_PARAM_H_
#define	_IA64_INCLUDE_PARAM_H_

/*
 * Machine dependent constants for the IA64.
 */

#include <machine/_align.h>

#define __HAVE_ACPI
#define __PCI_REROUTE_INTERRUPT

#ifndef MACHINE
#define	MACHINE		"ia64"
#endif
#ifndef MACHINE_ARCH
#define	MACHINE_ARCH	"ia64"
#endif
#ifndef MACHINE_ARCH32
#define	MACHINE_ARCH32	"i386"
#endif

#if defined(SMP) || defined(KLD_MODULE)
#ifndef MAXCPU
#define	MAXCPU		64
#endif
#else
#define MAXCPU		1
#endif

#define	ALIGNBYTES		_ALIGNBYTES
#define	ALIGN(p)		_ALIGN(p)
/*
 * ALIGNED_POINTER is a boolean macro that checks whether an address
 * is valid to fetch data elements of type t from on this architecture.
 * This does not reflect the optimal alignment, just the possibility
 * (within reasonable limits). 
 */
#define	ALIGNED_POINTER(p,t)	((((u_long)(p)) & (sizeof(t)-1)) == 0)

/*
 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an
 * architecture.  It should be used with appropriate caution.
 */
#define	CACHE_LINE_SHIFT	7
#define	CACHE_LINE_SIZE		(1 << CACHE_LINE_SHIFT)

#ifndef LOG2_PAGE_SIZE
#define	LOG2_PAGE_SIZE		13		/* 8K pages by default. */
#endif
#define	PAGE_SHIFT	(LOG2_PAGE_SIZE)
#define	PAGE_SIZE	(1<<(LOG2_PAGE_SIZE))
#define PAGE_MASK	(PAGE_SIZE-1)
#define NPTEPG		(PAGE_SIZE/(sizeof (pt_entry_t)))

#define	MAXPAGESIZES	1		/* maximum number of supported page sizes */

#ifndef	KSTACK_PAGES
#define	KSTACK_PAGES	4		/* pages of kernel stack */
#endif
#define	KSTACK_GUARD_PAGES 0		/* pages of kstack guard; 0 disables */

/*
 * Mach derived conversion macros
 */
#define	round_page(x)	((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK))
#define	trunc_page(x)	((unsigned long)(x) & ~(PAGE_MASK))

#define atop(x)			((unsigned long)(x) >> PAGE_SHIFT)
#define ptoa(x)			((unsigned long)(x) << PAGE_SHIFT)

#define	ia64_btop(x)		((unsigned long)(x) >> PAGE_SHIFT)
#define	ia64_ptob(x)		((unsigned long)(x) << PAGE_SHIFT)

#define pgtok(x)                ((x) * (PAGE_SIZE / 1024)) 

#endif	/* !_IA64_INCLUDE_PARAM_H_ */

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