sync with netbsd

1 files changed, 97 insertions, 0 deletions

diff --git a/sys/arch/pc532/include/pte.h b/sys/arch/pc532/include/pte.h
new file mode 100644
index 00000000000..1479088f900
--- /dev/null
+++ b/sys/arch/pc532/include/pte.h
@@ -0,0 +1,97 @@
+/*	$NetBSD: pte.h,v 1.1 1996/01/26 08:06:40 phil Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ *	@(#)pte.h	5.5 (Berkeley) 5/9/91
+ */
+
+/*
+ * NS532 page table entry and page table directory
+ * (derived from 386 page table entry by W.Jolitz, 8/89)
+ *
+ * There are two major kinds of pte's: those which have ever existed (and are
+ * thus either now in core or on the swap device), and those which have
+ * never existed, but which will be filled on demand at first reference.
+ * There is a structure describing each.  There is also an ancillary
+ * structure used in page clustering.
+ */
+
+#ifndef _NS532_PTE_H_
+#define _NS532_PTE_H_
+
+#define	PDSHIFT		22		/* LOG2(NBPDR) */
+#define	NBPD		(1 << PDSHIFT)	/* bytes/page dir */
+#define	PDOFSET		(NBPD-1)	/* byte offset into page dir */
+#define	NPTEPD		(NBPD / NBPG)
+
+#ifndef LOCORE
+typedef int	pd_entry_t;		/* page directory entry */
+typedef int	pt_entry_t;		/* Mach page table entry */
+#endif
+
+#define	PD_MASK		0xffc00000	/* page directory address bits */
+#define	PT_MASK		0x003ff000	/* page table address bits */
+
+#define	PG_V		0x00000001	/* present */
+#define	PG_RO		0x00000000	/* read-only by user and kernel */
+#define	PG_RW		0x00000002	/* read-write by user */
+#define	PG_u		0x00000004	/* accessible by user */
+#define	PG_PROT		0x00000006	/* all protection bits */
+#define	PG_N		0x00000040	/* non-cacheable */
+#define	PG_U		0x00000080	/* has been used */
+#define	PG_M		0x00000100	/* has been modified */
+#define	PG_W            0x00000200	/* page is wired */
+#define	PG_FRAME	0xfffff000	/* page frame mask */
+
+#define	PG_FZERO	0
+#define	PG_FTEXT	1
+#define	PG_FMAX		(PG_FTEXT)
+
+#define	PG_NOACC	0
+#define	PG_KR		0x00000000
+#define	PG_KW		0x00000002
+#define	PG_URKR		0x00000004
+#define	PG_URKW		0x00000004
+#define	PG_UW		0x00000006
+
+#ifndef LOCORE
+#ifdef _KERNEL
+/* utilities defined in pmap.c */
+extern	pt_entry_t *Sysmap;
+#endif
+#endif
+
+#endif /* _NS532_PTE_H_ */