initial import of NetBSD tree

1 files changed, 195 insertions, 0 deletions

diff --git a/sys/arch/vax/include/param.h b/sys/arch/vax/include/param.h
new file mode 100644
index 00000000000..208a254711a
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+++ b/sys/arch/vax/include/param.h
@@ -0,0 +1,195 @@
+/*      $NetBSD: param.h,v 1.12 1995/08/13 00:45:21 mycroft Exp $    */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Modified for VAX 940213/Ragge
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ *
+ *	@(#)param.h	5.8 (Berkeley) 6/28/91
+ */
+
+#ifndef _VAX_PARAM_H_
+#define _VAX_PARAM_H_
+
+#include "machine/macros.h"
+#include "psl.h"
+
+/*
+ * Machine dependent constants for VAX.
+ */
+
+#define MACHINE		"vax"
+#define MID_MACHINE	MID_VAX
+#define UNIX		"vmunix"
+
+/*
+ * Round p (pointer or byte index) up to a correctly-aligned value
+ * for all data types (int, long, ...).   The result is u_int and
+ * must be cast to any desired pointer type.
+ */
+
+#define ALIGNBYTES	(sizeof(int) - 1)
+#define ALIGN(p)	(((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
+
+#define	PGSHIFT	 9                             /* LOG2(NBPG) */
+#define	NBPG     (1<<PGSHIFT)                  /* (1 << PGSHIFT) bytes/page */
+#define	PGOFSET	 (NBPG-1)	               /* byte offset into page */
+#define	NPTEPG	 (NBPG/(sizeof (struct pte)))
+
+#define	KERNBASE     0x80000000	               /* start of kernel virtual */
+#define	BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
+
+#define	DEV_BSHIFT   9		               /* log2(DEV_BSIZE) */
+#define	DEV_BSIZE    (1 << DEV_BSHIFT)
+
+#define BLKDEV_IOSIZE 2048
+#define	MAXPHYS	      (63 * 1024)     /* max raw I/O transfer size */
+
+#define	CLSIZELOG2    1
+#define	CLSIZE	      2
+
+/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
+#define	SSIZE	4		/* initial stack size/NBPG */
+#define	SINCR	4		/* increment of stack/NBPG */
+
+#define	UPAGES	16		/* pages of u-area */
+#define USPACE  (NBPG*UPAGES)
+
+/*
+ * Constants related to network buffer management.
+ * MCLBYTES must be no larger than CLBYTES (the software page size), and,
+ * on machines that exchange pages of input or output buffers with mbuf
+ * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
+ * of the hardware page size.
+ */
+
+#ifndef	MSIZE
+#define	MSIZE		128		/* size of an mbuf */
+#endif	/* MSIZE */
+
+#ifndef	MCLSHIFT
+#define	MCLSHIFT	10		/* convert bytes to m_buf clusters */
+#endif	/* MCLSHIFT */
+#define	MCLBYTES	(1 << MCLSHIFT)	/* size of an m_buf cluster */
+#define	MCLOFSET	(MCLBYTES - 1)	/* offset within an m_buf cluster */
+
+#ifndef NMBCLUSTERS
+#ifdef GATEWAY
+#define	NMBCLUSTERS	512		/* map size, max cluster allocation */
+#else
+#define	NMBCLUSTERS	256		/* map size, max cluster allocation */
+#endif	/* GATEWAY */
+#endif	/* NMBCLUSTERS */
+
+/*
+ * Size of kernel malloc arena in CLBYTES-sized logical pages
+ */ 
+
+#ifndef NKMEMCLUSTERS
+#define	NKMEMCLUSTERS	(2048*1024/CLBYTES)
+#endif
+
+/*
+ * Some macros for units conversion
+ */
+
+/* pages ("clicks") to disk blocks */
+#define	ctod(x)		((x) << (PGSHIFT - DEV_BSHIFT))
+#define	dtoc(x)		((x) >> (PGSHIFT - DEV_BSHIFT))
+
+/* clicks to bytes */
+#define	ctob(x)		((x) << PGSHIFT)
+#define	btoc(x)		(((x) + PGOFSET) >> PGSHIFT)
+
+/* bytes to disk blocks */
+#define	btodb(x)	((x) >> DEV_BSHIFT)
+#define	dbtob(x)	((x) << DEV_BSHIFT)
+
+/*
+ * Map a ``block device block'' to a file system block.
+ * This should be device dependent, and will be if we
+ * add an entry to cdevsw/bdevsw for that purpose.
+ * For now though just use DEV_BSIZE.
+ */
+
+#define	bdbtofsb(bn)	((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
+
+/*
+ * Mach derived conversion macros
+ */
+
+#define vax_round_pdr(x)	((((unsigned)(x)) + NBPDR - 1) & ~(NBPDR-1))
+#define vax_trunc_pdr(x)	((unsigned)(x) & ~(NBPDR-1))
+#define vax_round_page(x)	((((unsigned)(x)) + NBPG - 1) & ~(NBPG-1))
+#define vax_trunc_page(x)	((unsigned)(x) & ~(NBPG-1))
+#define vax_btod(x)		((unsigned)(x) >> PDRSHIFT)
+#define vax_dtob(x)		((unsigned)(x) << PDRSHIFT)
+#define vax_btop(x)		((unsigned)(x) >> PGSHIFT)
+#define vax_ptob(x)		((unsigned)(x) << PGSHIFT)
+
+#define splx(reg)                                       \
+({                                                      \
+        register int val;                               \
+        asm __volatile ("mfpr $0x12,%0;mtpr %1,$0x12"	\
+                        : "=g" (val)                    \
+                        : "g" (reg));                   \
+        val;                                            \
+})
+
+
+#define	spl0()		splx(0)		/* IPL0  */
+#define splsoftclock()  splx(8)		/* IPL08 */
+#define splsoftnet()    splx(0xc)	/* IPL0C */
+#define	splddb()	splx(0xf)	/* IPL0F */
+#define spl4()          splx(0x14)	/* IPL14 */
+#define splbio()        splx(0x15)	/* IPL15 */
+#define splnet()        splx(0x15)	/* IPL15 */
+#define spltty()        splx(0x15)	/* IPL15 */
+#define splimp()        splx(0x16)	/* IPL16 */
+#define splclock()      splx(0x18)	/* IPL18 */
+#define splhigh()       splx(0x1f)	/* IPL1F */
+#define	splstatclock()	splclock()
+
+#define	ovbcopy(x,y,z)	bcopy(x,y,z)	/* This should work i hope... */
+
+#define vmapbuf(p,q)
+#define vunmapbuf(p,q)
+
+#if !defined(VAX630) && !defined(VAX410)
+#define todr()          mfpr(PR_TODR)
+#endif
+#define	DELAY(x) {int N=todr()+(x/1000)+1;while(todr()!=N);}
+
+#endif /* _VAX_PARAM_H_ */