param.h revision 1.1
1/* $NetBSD: param.h,v 1.1 2001/05/14 18:23:13 drochner Exp $ */ 2 3/* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1986, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: machparam.h 1.16 92/12/20$ 41 * 42 * @(#)param.h 8.1 (Berkeley) 6/10/93 43 */ 44 45/* 46 * Machine dependent constants for CES FIC8234. 47 */ 48#define _MACHINE cesfic 49#define MACHINE "cesfic" 50 51/* 52 * Round p (pointer or byte index) up to a correctly-aligned value for all 53 * data types (int, long, ...). The result is u_int and must be cast to 54 * any desired pointer type. 55 * 56 * ALIGNED_POINTER is a boolean macro that checks whether an address 57 * is valid to fetch data elements of type t from on this architecture. 58 * This does not reflect the optimal alignment, just the possibility 59 * (within reasonable limits). 60 * 61 */ 62 63#define PGSHIFT 12 /* LOG2(NBPG) */ 64#define NPTEPG (NBPG/(sizeof (pt_entry_t))) 65 66#define SEGSHIFT 22 /* LOG2(NBSEG) */ 67#define NBSEG (1 << SEGSHIFT) /* bytes/segment */ 68#define SEGOFSET (NBSEG-1) /* byte offset into segment */ 69 70#define KERNBASE 0x00002000 /* start of kernel virtual */ 71 72/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */ 73#define UPAGES 2 /* pages of u-area */ 74 75#include <m68k/param.h> 76 77/* 78 * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized 79 * logical pages. 80 */ 81#define NKMEMPAGES_MIN_DEFAULT ((3 * 1024 * 1024) >> PAGE_SHIFT) 82#define NKMEMPAGES_MAX_DEFAULT ((3 * 1024 * 1024) >> PAGE_SHIFT) 83 84/* 85 * spl functions; all but spl0 are done in-line 86 */ 87#include <machine/psl.h> 88 89/* spl0 requires checking for software interrupts */ 90#define spl1() _spl(PSL_S|PSL_IPL1) 91#define spl2() _spl(PSL_S|PSL_IPL2) 92#define spl3() _spl(PSL_S|PSL_IPL3) 93#define spl4() _spl(PSL_S|PSL_IPL4) 94#define spl5() _spl(PSL_S|PSL_IPL5) 95#define spl6() _spl(PSL_S|PSL_IPL6) 96#define spl7() _spl(PSL_S|PSL_IPL7) 97 98#if defined(_KERNEL) && !defined(_LOCORE) 99/* 100 * These four globals contain the appropriate PSL_S|PSL_IPL? values 101 * to raise interrupt priority to the requested level. 102 */ 103extern unsigned short cesfic_bioipl; 104extern unsigned short cesfic_netipl; 105extern unsigned short cesfic_ttyipl; 106extern unsigned short cesfic_impipl; 107#endif /* _KERNEL && !_LOCORE */ 108 109/* These spl calls are _not_ to be used by machine-independent code. */ 110#define splhil() _splraise(PSL_S|PSL_IPL1) 111#define splkbd() splhil() 112 113/* These spl calls are used by machine-independent code. */ 114#define spllowersoftclock() spl1() 115#define splsoft() splraise1() 116#define splsoftclock() splsoft() 117#define splsoftnet() splsoft() 118#define splbio() _splraise(cesfic_bioipl) 119#define splnet() _splraise(cesfic_netipl) 120#define spltty() _splraise(cesfic_ttyipl) 121#define splimp() _splraise(cesfic_impipl) 122#define splclock() spl6() 123#define splstatclock() spl6() 124#define splvm() spl6() 125#define splhigh() spl7() 126#define splsched() spl7() 127#define spllock() spl7() 128 129/* watch out for side effects */ 130#define splx(s) (s & PSL_IPL ? _spl(s) : spl0()) 131 132#if defined(_KERNEL) && !defined(_LOCORE) 133#define delay(us) _delay((us) << 8) 134#define DELAY(us) delay(us) 135 136int spl0 __P((void)); 137void _delay __P((u_int)); 138#endif /* _KERNEL && !_LOCORE */ 139 140