142 lines
4.9 KiB
C
142 lines
4.9 KiB
C
/* $NetBSD: param.h,v 1.8 1997/10/09 12:58:31 oki 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 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 $Hdr: machparam.h 1.16 92/12/20$
|
|
*
|
|
* @(#)param.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
#ifndef _MACHINE_PARAM_H_
|
|
#define _MACHINE_PARAM_H_
|
|
|
|
/*
|
|
* Machine dependent constants for x68k
|
|
*/
|
|
#define _MACHINE x68k
|
|
#define MACHINE "x68k"
|
|
|
|
#define PGSHIFT 12 /* LOG2(NBPG) */
|
|
#define KERNBASE 0x00000000 /* start of kernel virtual */
|
|
|
|
#define SEGSHIFT 22 /* LOG2(NBSEG) */
|
|
#define NBSEG (1 << SEGSHIFT) /* bytes/segment */
|
|
#define SEGOFSET (NBSEG-1) /* byte offset into segment */
|
|
|
|
#define UPAGES 3 /* pages of u-area */
|
|
|
|
#include <m68k/param.h>
|
|
|
|
#define NPTEPG (NBPG/(sizeof (pt_entry_t)))
|
|
|
|
#ifndef MSGBUFSIZE
|
|
#define MSGBUFSIZE NBPG /* default message buffer size */
|
|
#endif
|
|
|
|
/*
|
|
* Size of kernel malloc arena in CLBYTES-sized logical pages
|
|
*/
|
|
#ifndef NKMEMCLUSTERS
|
|
# define NKMEMCLUSTERS (2048 * 1024 / CLBYTES)
|
|
#endif
|
|
|
|
/*
|
|
* spl functions; all but spl0 are done in-line
|
|
*/
|
|
#include <machine/psl.h>
|
|
|
|
#define _spl(s) \
|
|
({ \
|
|
register int _spl_r; \
|
|
\
|
|
__asm __volatile ("clrl %0; movew sr,%0; movew %1,sr" : \
|
|
"&=d" (_spl_r) : "di" (s)); \
|
|
_spl_r; \
|
|
})
|
|
|
|
/* spl0 requires checking for software interrupts */
|
|
void spl0 __P((void));
|
|
#define spl1() _spl(PSL_S|PSL_IPL1)
|
|
#define spl2() _spl(PSL_S|PSL_IPL2)
|
|
#define spl3() _spl(PSL_S|PSL_IPL3)
|
|
#define spl4() _spl(PSL_S|PSL_IPL4)
|
|
#define spl5() _spl(PSL_S|PSL_IPL5)
|
|
#define spl6() _spl(PSL_S|PSL_IPL6)
|
|
#define spl7() _spl(PSL_S|PSL_IPL7)
|
|
|
|
#define splnone() spl0()
|
|
#define splsoftclock() spl1() /* disallow softclock */
|
|
#define splsoftnet() spl1() /* disallow softnet */
|
|
#define splnet() spl4() /* disallow network */
|
|
#define splbio() spl3() /* disallow block I/O */
|
|
#define splimp() spl4() /* disallow imput */
|
|
#define spltty() spl4() /* disallow tty interrupts */
|
|
#define splzs() spl6() /* disallow serial interrupts */
|
|
#define splclock() spl6() /* disallow clock interrupt */
|
|
#define splstatclock() spl6() /* disallow clock interrupt */
|
|
#define splvm() spl4() /* disallow virtual memory operations */
|
|
#define splhigh() spl7() /* disallow everything */
|
|
#define splsched() spl7() /* disallow scheduling */
|
|
|
|
/* watch out for side effects */
|
|
#define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0())
|
|
|
|
#ifdef _KERNEL
|
|
#ifndef _LOCORE
|
|
int cpuspeed;
|
|
#define delay(n) do { register int N = cpuspeed * (n); while (--N > 0); } while(0)
|
|
#define DELAY(n) delay(n)
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef COMPAT_HPUX
|
|
/*
|
|
* Constants/macros for HPUX multiple mapping of user address space.
|
|
* Pages in the first 256Mb are mapped in at every 256Mb segment.
|
|
*/
|
|
#define HPMMMASK 0xF0000000
|
|
#define ISHPMMADDR(v) \
|
|
((curproc->p_md.md_flags & MDP_HPUXMMAP) && \
|
|
((unsigned)(v) & HPMMMASK) && \
|
|
((unsigned)(v) & HPMMMASK) != HPMMMASK)
|
|
#define HPMMBASEADDR(v) \
|
|
((unsigned)(v) & ~HPMMMASK)
|
|
#endif
|
|
|
|
#endif /* !_MACHINE_PARAM_H_ */
|