135 lines
4.8 KiB
C
135 lines
4.8 KiB
C
/* $NetBSD: param.h,v 1.2 2001/05/16 18:49:51 drochner Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: machparam.h 1.16 92/12/20$
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*
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* @(#)param.h 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Machine dependent constants for CES FIC8234.
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*/
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#define _MACHINE cesfic
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#define MACHINE "cesfic"
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/*
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* Round p (pointer or byte index) up to a correctly-aligned value for all
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* data types (int, long, ...). The result is u_int and must be cast to
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* any desired pointer type.
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*
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* ALIGNED_POINTER is a boolean macro that checks whether an address
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* is valid to fetch data elements of type t from on this architecture.
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* This does not reflect the optimal alignment, just the possibility
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* (within reasonable limits).
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*
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*/
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#define PGSHIFT 12 /* LOG2(NBPG) */
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#define NPTEPG (NBPG/(sizeof (pt_entry_t)))
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#define SEGSHIFT 22 /* LOG2(NBSEG) */
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#define NBSEG (1 << SEGSHIFT) /* bytes/segment */
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#define SEGOFSET (NBSEG-1) /* byte offset into segment */
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#define KERNBASE 0x00002000 /* start of kernel virtual */
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/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
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#define UPAGES 2 /* pages of u-area */
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#include <m68k/param.h>
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/*
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* Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
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* logical pages.
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*/
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#define NKMEMPAGES_MIN_DEFAULT ((3 * 1024 * 1024) >> PAGE_SHIFT)
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#define NKMEMPAGES_MAX_DEFAULT ((3 * 1024 * 1024) >> PAGE_SHIFT)
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/*
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* spl functions; all but spl0 are done in-line
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*/
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#include <machine/psl.h>
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/* spl0 requires checking for software interrupts */
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#define spl1() _spl(PSL_S|PSL_IPL1)
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#define spl2() _spl(PSL_S|PSL_IPL2)
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#define spl3() _spl(PSL_S|PSL_IPL3)
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#define spl4() _spl(PSL_S|PSL_IPL4)
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#define spl5() _spl(PSL_S|PSL_IPL5)
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#define spl6() _spl(PSL_S|PSL_IPL6)
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#define spl7() _spl(PSL_S|PSL_IPL7)
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#if defined(_KERNEL) && !defined(_LOCORE)
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/*
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* These four globals contain the appropriate PSL_S|PSL_IPL? values
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* to raise interrupt priority to the requested level.
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*/
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extern unsigned short cesfic_bioipl;
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extern unsigned short cesfic_netipl;
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extern unsigned short cesfic_ttyipl;
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extern unsigned short cesfic_impipl;
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#endif /* _KERNEL && !_LOCORE */
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/* These spl calls are used by machine-independent code. */
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#define spllowersoftclock() spl1()
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#define splsoft() splraise1()
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#define splsoftclock() splsoft()
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#define splsoftnet() splsoft()
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#define splbio() _splraise(cesfic_bioipl)
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#define splnet() _splraise(cesfic_netipl)
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#define spltty() _splraise(cesfic_ttyipl)
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#define splvm() _splraise(cesfic_impipl)
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#define splclock() spl6()
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#define splstatclock() spl6()
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#define splhigh() spl7()
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#define splsched() spl7()
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#define spllock() spl7()
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/* watch out for side effects */
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#define splx(s) (s & PSL_IPL ? _spl(s) : spl0())
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#if defined(_KERNEL) && !defined(_LOCORE)
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#define delay(us) _delay((us) << 8)
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#define DELAY(us) delay(us)
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int spl0 __P((void));
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void _delay __P((u_int));
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#endif /* _KERNEL && !_LOCORE */
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