138 lines
4.4 KiB
C
138 lines
4.4 KiB
C
/* $FreeBSD$ */
|
|
/* 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
|
|
*/
|
|
|
|
/*
|
|
* Machine dependent constants for the Alpha.
|
|
*/
|
|
|
|
/*
|
|
* Round p (pointer or byte index) up to a correctly-aligned value for all
|
|
* data types (int, long, ...). The result is u_long and must be cast to
|
|
* any desired pointer type.
|
|
*
|
|
* 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).
|
|
*
|
|
*/
|
|
#ifndef _ALIGNBYTES
|
|
#define _ALIGNBYTES 7
|
|
#endif
|
|
#ifndef _ALIGN
|
|
#define _ALIGN(p) (((u_long)(p) + _ALIGNBYTES) &~ _ALIGNBYTES)
|
|
#endif
|
|
#ifndef _ALIGNED_POINTER
|
|
#define _ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0)
|
|
#endif
|
|
|
|
#ifndef _MACHINE
|
|
#define _MACHINE alpha
|
|
#endif
|
|
#ifndef _MACHINE_ARCH
|
|
#define _MACHINE_ARCH alpha
|
|
#endif
|
|
|
|
#ifndef _NO_NAMESPACE_POLLUTION
|
|
|
|
#ifndef _MACHINE_PARAM_H_
|
|
#define _MACHINE_PARAM_H_
|
|
|
|
#ifndef MACHINE
|
|
#define MACHINE "alpha"
|
|
#endif
|
|
#ifndef MACHINE_ARCH
|
|
#define MACHINE_ARCH "alpha"
|
|
#endif
|
|
#define MID_MACHINE MID_ALPHA
|
|
|
|
#include <machine/alpha_cpu.h>
|
|
#include <machine/cpu.h>
|
|
|
|
#define MAXSMPCPU 8
|
|
#ifdef SMP
|
|
#define MAXCPU MAXSMPCPU
|
|
#else
|
|
#define MAXCPU 1
|
|
#endif
|
|
|
|
#define ALIGNBYTES _ALIGNBYTES
|
|
#define ALIGN(p) _ALIGN(p)
|
|
#define ALIGNED_POINTER(p,t) _ALIGNED_POINTER(p,t)
|
|
|
|
#define PAGE_SIZE (1 << ALPHA_PGSHIFT) /* bytes/page */
|
|
#define PAGE_SHIFT ALPHA_PGSHIFT
|
|
#define PAGE_MASK (PAGE_SIZE-1)
|
|
#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
|
|
|
|
#define KERNBASE 0xfffffc0000300000LL /* start of kernel virtual */
|
|
#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
|
|
|
|
#define CLSIZE 1
|
|
#define CLSIZELOG2 0
|
|
|
|
/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
|
|
#define SSIZE 1 /* initial stack size/NBPG */
|
|
#define SINCR 1 /* increment of stack/NBPG */
|
|
|
|
#ifndef KSTACK_PAGES
|
|
#define KSTACK_PAGES 2 /* pages of kstack (with pcb) */
|
|
#endif
|
|
#define KSTACK_GUARD_PAGES 1 /* 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 alpha_btop(x) ((unsigned long)(x) >> PAGE_SHIFT)
|
|
#define alpha_ptob(x) ((unsigned long)(x) << PAGE_SHIFT)
|
|
|
|
#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
|
|
|
|
#endif /* !_MACHINE_PARAM_H_ */
|
|
#endif /* !_NO_NAMESPACE_POLLUTION */
|