/* $NetBSD: vmparam.h,v 1.1.2.2 2020/02/10 18:46:40 martin Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1986, 1990, 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. * * 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. * 3. 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 $Hdr: vmparam.h 1.16 91/01/18$ * * @(#)vmparam.h 8.2 (Berkeley) 4/19/94 */ #ifndef _M68K_VMPARAM_H_ #define _M68K_VMPARAM_H_ /* * Common constants for m68k ports */ /* * hp300 pmap derived m68k ports can use 4K or 8K pages. * (except HPMMU machines, that support only 4K page) * sun3 and sun3x use 8K pages. * The page size is specified by PGSHIFT in <machine/param.h>. * Override the PAGE_* definitions to be compile-time constants. */ #define PAGE_SHIFT PGSHIFT #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) /* Some implemantations like jemalloc(3) require physical page size details. */ /* * XXX: * <uvm/uvm_param.h> assumes PAGE_SIZE is not a constant macro * but a variable (*uvmexp_pagesize) on MODULE builds in case of * (MIN_PAGE_SIZE != MAX_PAGE_SIZE). For now we define these macros * for m68k ports only on !_KERNEL (currently just for jemalloc) builds. */ #if !defined(_KERNEL) #define MIN_PAGE_SHIFT 12 #define MAX_PAGE_SHIFT 13 #define MIN_PAGE_SIZE (1 << MIN_PAGE_SHIFT) #define MAX_PAGE_SIZE (1 << MAX_PAGE_SHIFT) #endif /* !_KERNEL */ #endif /* _M68K_VMPARAM_H_ */ |