param.h revision 119347
166458Sdfr/* $FreeBSD: head/sys/ia64/include/param.h 119347 2003-08-23 03:39:55Z marcel $ */ 266458Sdfr/* From: NetBSD: param.h,v 1.20 1997/09/19 13:52:53 leo Exp */ 366458Sdfr 466458Sdfr/* 566458Sdfr * Copyright (c) 1988 University of Utah. 666458Sdfr * Copyright (c) 1992, 1993 766458Sdfr * The Regents of the University of California. All rights reserved. 866458Sdfr * 966458Sdfr * This code is derived from software contributed to Berkeley by 1066458Sdfr * the Systems Programming Group of the University of Utah Computer 1166458Sdfr * Science Department and Ralph Campbell. 1266458Sdfr * 1366458Sdfr * Redistribution and use in source and binary forms, with or without 1466458Sdfr * modification, are permitted provided that the following conditions 1566458Sdfr * are met: 1666458Sdfr * 1. Redistributions of source code must retain the above copyright 1766458Sdfr * notice, this list of conditions and the following disclaimer. 1866458Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1966458Sdfr * notice, this list of conditions and the following disclaimer in the 2066458Sdfr * documentation and/or other materials provided with the distribution. 2166458Sdfr * 3. All advertising materials mentioning features or use of this software 2266458Sdfr * must display the following acknowledgement: 2366458Sdfr * This product includes software developed by the University of 2466458Sdfr * California, Berkeley and its contributors. 2566458Sdfr * 4. Neither the name of the University nor the names of its contributors 2666458Sdfr * may be used to endorse or promote products derived from this software 2766458Sdfr * without specific prior written permission. 2866458Sdfr * 2966458Sdfr * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 3066458Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 3166458Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3266458Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 3366458Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3466458Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3566458Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3666458Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3766458Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3866458Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3966458Sdfr * SUCH DAMAGE. 4066458Sdfr * 4166458Sdfr * from: Utah $Hdr: machparam.h 1.11 89/08/14$ 4266458Sdfr * 4366458Sdfr * @(#)param.h 8.1 (Berkeley) 6/10/93 4466458Sdfr */ 4566458Sdfr 4666458Sdfr/* 4766458Sdfr * Machine dependent constants for the IA64. 4866458Sdfr */ 4970508Sdfr/* 5070508Sdfr * Round p (pointer or byte index) up to a correctly-aligned value for all 5170508Sdfr * data types (int, long, ...). The result is u_long and must be cast to 5270508Sdfr * any desired pointer type. 5370508Sdfr * 5470508Sdfr * ALIGNED_POINTER is a boolean macro that checks whether an address 5570508Sdfr * is valid to fetch data elements of type t from on this architecture. 5670508Sdfr * This does not reflect the optimal alignment, just the possibility 5770508Sdfr * (within reasonable limits). 5870508Sdfr * 5970508Sdfr */ 6070508Sdfr#ifndef _ALIGNBYTES 61111031Smarcel#define _ALIGNBYTES 15 6270508Sdfr#endif 6370508Sdfr#ifndef _ALIGN 6470508Sdfr#define _ALIGN(p) (((u_long)(p) + _ALIGNBYTES) &~ _ALIGNBYTES) 6570508Sdfr#endif 6670508Sdfr#ifndef _ALIGNED_POINTER 6770508Sdfr#define _ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0) 6870508Sdfr#endif 6970508Sdfr 7066458Sdfr#ifndef _MACHINE 7166458Sdfr#define _MACHINE ia64 7266458Sdfr#endif 7396912Smarcel#ifndef _MACHINE_ARCH 7496912Smarcel#define _MACHINE_ARCH ia64 7596912Smarcel#endif 7696912Smarcel 7796912Smarcel#ifndef _NO_NAMESPACE_POLLUTION 7896912Smarcel 7996912Smarcel#ifndef _MACHINE_PARAM_H_ 8096912Smarcel#define _MACHINE_PARAM_H_ 8196912Smarcel 8266458Sdfr#ifndef MACHINE 8366458Sdfr#define MACHINE "ia64" 8466458Sdfr#endif 8566458Sdfr#ifndef MACHINE_ARCH 8666458Sdfr#define MACHINE_ARCH "ia64" 8766458Sdfr#endif 8866458Sdfr 8974733Sjhb#ifdef SMP 9074733Sjhb#define MAXCPU 16 9174733Sjhb#else 9274733Sjhb#define MAXCPU 1 9374733Sjhb#endif 9466458Sdfr 9566458Sdfr/* 9666458Sdfr * Round p (pointer or byte index) up to a correctly-aligned value for all 9766458Sdfr * data types (int, long, ...). The result is u_long and must be cast to 9866458Sdfr * any desired pointer type. 9966458Sdfr * 10066458Sdfr * ALIGNED_POINTER is a boolean macro that checks whether an address 10166458Sdfr * is valid to fetch data elements of type t from on this architecture. 10266458Sdfr * This does not reflect the optimal alignment, just the possibility 10366458Sdfr * (within reasonable limits). 10466458Sdfr * 10566458Sdfr */ 10670508Sdfr#define ALIGNBYTES _ALIGNBYTES 10770508Sdfr#define ALIGN(p) _ALIGN(p) 10870508Sdfr#define ALIGNED_POINTER(p,t) _ALIGNED_POINTER(p,t) 10966458Sdfr 110119347Smarcel#ifndef LOG2_PAGE_SIZE 111119347Smarcel#define LOG2_PAGE_SIZE 13 /* 8K pages by default. */ 11283198Sdfr#endif 113119347Smarcel#define PAGE_SHIFT (LOG2_PAGE_SIZE) 114119347Smarcel#define PAGE_SIZE (1<<(LOG2_PAGE_SIZE)) 11566458Sdfr#define PAGE_MASK (PAGE_SIZE-1) 11666458Sdfr#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) 11766458Sdfr 11866458Sdfr#define CLSIZE 1 11966458Sdfr#define CLSIZELOG2 0 12066458Sdfr 12166458Sdfr/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */ 12266458Sdfr#define SSIZE 1 /* initial stack size/NBPG */ 12366458Sdfr#define SINCR 1 /* increment of stack/NBPG */ 12466458Sdfr 125118239Speter#ifndef KSTACK_PAGES 12683366Sjulian#define KSTACK_PAGES 4 /* pages of kernel stack */ 127118239Speter#endif 128116355Salc#define KSTACK_GUARD_PAGES 0 /* pages of kstack guard; 0 disables */ 12983366Sjulian#define UAREA_PAGES 1 /* pages of u-area */ 13066458Sdfr 13166458Sdfr/* 13266458Sdfr * Mach derived conversion macros 13366458Sdfr */ 13466458Sdfr#define round_page(x) ((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK)) 13566458Sdfr#define trunc_page(x) ((unsigned long)(x) & ~(PAGE_MASK)) 13666458Sdfr 13766458Sdfr#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) 13866458Sdfr#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) 13966458Sdfr 14066458Sdfr#define ia64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) 14166458Sdfr#define ia64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) 14266458Sdfr 14366458Sdfr#define pgtok(x) ((x) * (PAGE_SIZE / 1024)) 14496912Smarcel 14596912Smarcel#endif /* !_MACHINE_PARAM_H_ */ 14696912Smarcel#endif /* !_NO_NAMESPACE_POLLUTION */ 147