param.h revision 224217
166458Sdfr/* $FreeBSD: head/sys/ia64/include/param.h 224217 2011-07-19 13:00:30Z attilio $ */ 266458Sdfr/* From: NetBSD: param.h,v 1.20 1997/09/19 13:52:53 leo Exp */ 366458Sdfr 4139790Simp/*- 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 * 4. Neither the name of the University nor the names of its contributors 2266458Sdfr * may be used to endorse or promote products derived from this software 2366458Sdfr * without specific prior written permission. 2466458Sdfr * 2566458Sdfr * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2666458Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2766458Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2866458Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2966458Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3066458Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3166458Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3266458Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3366458Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3466458Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3566458Sdfr * SUCH DAMAGE. 3666458Sdfr * 3766458Sdfr * from: Utah $Hdr: machparam.h 1.11 89/08/14$ 3866458Sdfr * 3966458Sdfr * @(#)param.h 8.1 (Berkeley) 6/10/93 4066458Sdfr */ 4166458Sdfr 42196994Sphk#ifndef _IA64_INCLUDE_PARAM_H_ 43196994Sphk#define _IA64_INCLUDE_PARAM_H_ 44196994Sphk 4566458Sdfr/* 4666458Sdfr * Machine dependent constants for the IA64. 4766458Sdfr */ 4870508Sdfr 49196994Sphk#include <machine/_align.h> 5096912Smarcel 51154128Simp#define __HAVE_ACPI 52154128Simp#define __PCI_REROUTE_INTERRUPT 53154128Simp 5466458Sdfr#ifndef MACHINE 5566458Sdfr#define MACHINE "ia64" 5666458Sdfr#endif 5766458Sdfr#ifndef MACHINE_ARCH 5866458Sdfr#define MACHINE_ARCH "ia64" 5966458Sdfr#endif 60210369Skib#ifndef MACHINE_ARCH32 61210369Skib#define MACHINE_ARCH32 "i386" 62210369Skib#endif 6366458Sdfr 64177661Sjb#if defined(SMP) || defined(KLD_MODULE) 65224207Sattilio#ifndef MAXCPU 66224217Sattilio#define MAXCPU 64 67224207Sattilio#endif 6874733Sjhb#else 6974733Sjhb#define MAXCPU 1 7074733Sjhb#endif 7166458Sdfr 72195376Ssam#define ALIGNBYTES _ALIGNBYTES 73195376Ssam#define ALIGN(p) _ALIGN(p) 7466458Sdfr/* 7566458Sdfr * ALIGNED_POINTER is a boolean macro that checks whether an address 7666458Sdfr * is valid to fetch data elements of type t from on this architecture. 7766458Sdfr * This does not reflect the optimal alignment, just the possibility 7866458Sdfr * (within reasonable limits). 7966458Sdfr */ 80195376Ssam#define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0) 8166458Sdfr 82191278Srwatson/* 83191278Srwatson * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 84191278Srwatson * architecture. It should be used with appropriate caution. 85191278Srwatson */ 86191309Srwatson#define CACHE_LINE_SHIFT 7 87191276Srwatson#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 88191276Srwatson 89119347Smarcel#ifndef LOG2_PAGE_SIZE 90119347Smarcel#define LOG2_PAGE_SIZE 13 /* 8K pages by default. */ 9183198Sdfr#endif 92119347Smarcel#define PAGE_SHIFT (LOG2_PAGE_SIZE) 93119347Smarcel#define PAGE_SIZE (1<<(LOG2_PAGE_SIZE)) 9466458Sdfr#define PAGE_MASK (PAGE_SIZE-1) 9566458Sdfr#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) 9666458Sdfr 97197316Salc#define MAXPAGESIZES 1 /* maximum number of supported page sizes */ 98197316Salc 99118239Speter#ifndef KSTACK_PAGES 100199719Smarcel#define KSTACK_PAGES 4 /* pages of kernel stack */ 101118239Speter#endif 102116355Salc#define KSTACK_GUARD_PAGES 0 /* pages of kstack guard; 0 disables */ 10366458Sdfr 10466458Sdfr/* 10566458Sdfr * Mach derived conversion macros 10666458Sdfr */ 10766458Sdfr#define round_page(x) ((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK)) 10866458Sdfr#define trunc_page(x) ((unsigned long)(x) & ~(PAGE_MASK)) 10966458Sdfr 11066458Sdfr#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) 11166458Sdfr#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) 11266458Sdfr 11366458Sdfr#define ia64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) 11466458Sdfr#define ia64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) 11566458Sdfr 11666458Sdfr#define pgtok(x) ((x) * (PAGE_SIZE / 1024)) 11796912Smarcel 118196994Sphk#endif /* !_IA64_INCLUDE_PARAM_H_ */ 119