1261287Sdes/* $FreeBSD$ */ 2261287Sdes/* From: NetBSD: param.h,v 1.20 1997/09/19 13:52:53 leo Exp */ 3261287Sdes 4261287Sdes/*- 5261287Sdes * Copyright (c) 1988 University of Utah. 6261287Sdes * Copyright (c) 1992, 1993 7261287Sdes * The Regents of the University of California. All rights reserved. 8261287Sdes * 9261287Sdes * This code is derived from software contributed to Berkeley by 10261287Sdes * the Systems Programming Group of the University of Utah Computer 11261287Sdes * Science Department and Ralph Campbell. 12261287Sdes * 13261287Sdes * Redistribution and use in source and binary forms, with or without 14261287Sdes * modification, are permitted provided that the following conditions 15261287Sdes * are met: 16261287Sdes * 1. Redistributions of source code must retain the above copyright 17261287Sdes * notice, this list of conditions and the following disclaimer. 18261287Sdes * 2. Redistributions in binary form must reproduce the above copyright 19261287Sdes * notice, this list of conditions and the following disclaimer in the 20261287Sdes * documentation and/or other materials provided with the distribution. 21261287Sdes * 4. Neither the name of the University nor the names of its contributors 22261287Sdes * may be used to endorse or promote products derived from this software 23261287Sdes * without specific prior written permission. 24261287Sdes * 25261287Sdes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26261287Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27261287Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28261287Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29261287Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30261287Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31261287Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32261287Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33261287Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34261287Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35261287Sdes * SUCH DAMAGE. 36261287Sdes * 37261287Sdes * from: Utah $Hdr: machparam.h 1.11 89/08/14$ 38261287Sdes * 39261287Sdes * @(#)param.h 8.1 (Berkeley) 6/10/93 40261287Sdes */ 41261287Sdes 42261287Sdes#ifndef _IA64_INCLUDE_PARAM_H_ 43261287Sdes#define _IA64_INCLUDE_PARAM_H_ 44261287Sdes 45261287Sdes/* 46261287Sdes * Machine dependent constants for the IA64. 47261287Sdes */ 48261287Sdes 49261287Sdes#include <machine/_align.h> 50261287Sdes 51261287Sdes#define __HAVE_ACPI 52261287Sdes#define __PCI_REROUTE_INTERRUPT 53261287Sdes 54261287Sdes#ifndef MACHINE 55261287Sdes#define MACHINE "ia64" 56261287Sdes#endif 57261287Sdes#ifndef MACHINE_ARCH 58261287Sdes#define MACHINE_ARCH "ia64" 59261287Sdes#endif 60261287Sdes#ifndef MACHINE_ARCH32 61261287Sdes#define MACHINE_ARCH32 "i386" 62261287Sdes#endif 63261287Sdes 64261287Sdes#if defined(SMP) || defined(KLD_MODULE) 65261287Sdes#ifndef MAXCPU 66261287Sdes#define MAXCPU 64 67261287Sdes#endif 68261287Sdes#else 69261287Sdes#define MAXCPU 1 70261287Sdes#endif 71261287Sdes 72261287Sdes#ifndef MAXMEMDOM 73261287Sdes#define MAXMEMDOM 1 74261287Sdes#endif 75261287Sdes 76261287Sdes#define ALIGNBYTES _ALIGNBYTES 77261287Sdes#define ALIGN(p) _ALIGN(p) 78261287Sdes/* 79261287Sdes * ALIGNED_POINTER is a boolean macro that checks whether an address 80261287Sdes * is valid to fetch data elements of type t from on this architecture. 81261287Sdes * This does not reflect the optimal alignment, just the possibility 82261287Sdes * (within reasonable limits). 83261287Sdes */ 84261287Sdes#define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0) 85261287Sdes 86261287Sdes/* 87261287Sdes * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 88261287Sdes * architecture. It should be used with appropriate caution. 89261287Sdes */ 90261287Sdes#define CACHE_LINE_SHIFT 7 91261287Sdes#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 92261287Sdes 93261287Sdes#ifndef LOG2_PAGE_SIZE 94261287Sdes#define LOG2_PAGE_SIZE 13 /* 8K pages by default. */ 95261287Sdes#endif 96261287Sdes#define PAGE_SHIFT (LOG2_PAGE_SIZE) 97261287Sdes#define PAGE_SIZE (1<<(LOG2_PAGE_SIZE)) 98261287Sdes#define PAGE_MASK (PAGE_SIZE-1) 99261287Sdes#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) 100261287Sdes 101261287Sdes#define MAXPAGESIZES 1 /* maximum number of supported page sizes */ 102261287Sdes 103261287Sdes#ifndef KSTACK_PAGES 104261287Sdes#define KSTACK_PAGES 4 /* pages of kernel stack */ 105261287Sdes#endif 106261287Sdes#define KSTACK_GUARD_PAGES 0 /* pages of kstack guard; 0 disables */ 107261287Sdes 108261287Sdes/* The default size of identity mappings in region 6 & 7. */ 109261287Sdes#ifndef LOG2_ID_PAGE_SIZE 110261287Sdes#define LOG2_ID_PAGE_SIZE 16 111261287Sdes#endif 112261287Sdes 113261287Sdes/* 114261287Sdes * Mach derived conversion macros 115261287Sdes */ 116261287Sdes#define round_page(x) ((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK)) 117261287Sdes#define trunc_page(x) ((unsigned long)(x) & ~(PAGE_MASK)) 118261287Sdes 119261287Sdes#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) 120261287Sdes#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) 121261287Sdes 122261287Sdes#define pgtok(x) ((x) * (PAGE_SIZE / 1024)) 123261287Sdes 124261287Sdes#ifdef _KERNEL 125261287Sdes#define NO_FUEWORD 1 126261287Sdes#endif 127261287Sdes 128261287Sdes#endif /* !_IA64_INCLUDE_PARAM_H_ */ 129261287Sdes