--- /dev/null
+/*-
+ * 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.
+ * 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: @(#)param.h 5.8 (Berkeley) 6/28/91
+ * $FreeBSD$
+ */
+
+#ifndef _I386_INCLUDE__ALIGN_H_
+#define _I386_INCLUDE__ALIGN_H_
+
+/*
+ * Round p (pointer or byte index) up to a correctly-aligned value
+ * for all data types (int, long, ...). The result is unsigned int
+ * and must be cast to any desired pointer type.
+ */
+#define _ALIGNBYTES (sizeof(int) - 1)
+#define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
+
+#endif /* !_I386_INCLUDE__ALIGN_H_ */
--- /dev/null
+/*-
+ * 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.
+ * 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: @(#)param.h 5.8 (Berkeley) 6/28/91
+ * $FreeBSD$
+ */
+
+#include <machine/_align.h>
+
+#ifndef _I386_INCLUDE_PARAM_H_
+#define _I386_INCLUDE_PARAM_H_
+
+/*
+ * Machine dependent constants for Intel 386.
+ */
+
+/*
+ * Round p (pointer or byte index) up to a correctly-aligned value
+ * for all data types (int, long, ...). The result is unsigned int
+ * and must be cast to any desired pointer type.
+ */
+#ifndef _ALIGNBYTES
+#define _ALIGNBYTES (sizeof(int) - 1)
+#endif
+#ifndef _ALIGN
+#define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
+#endif
+
+#define ALIGNBYTES _ALIGNBYTES
+#define ALIGN(p) _ALIGN(p)
+/*
+ * ALIGNED_POINTER is a boolean macro that checks whether an address
+ * is valid to fetch data elements of type t from on this architecture.
+ * This does not reflect the optimal alignment, just the possibility
+ * (within reasonable limits).
+ */
+#define ALIGNED_POINTER(p, t) 1
+
+#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */
+#define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */
+#define PAGE_MASK (PAGE_SIZE-1)
+#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
+
+#ifdef PAE
+#define NPGPTD 4
+#define PDRSHIFT 21 /* LOG2(NBPDR) */
+#define NPGPTD_SHIFT 9
+#else
+#define NPGPTD 1
+#define PDRSHIFT 22 /* LOG2(NBPDR) */
+#define NPGPTD_SHIFT 10
+#endif
+
+#define NBPTD (NPGPTD<<PAGE_SHIFT)
+#define NPDEPTD (NBPTD/(sizeof (pd_entry_t)))
+#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))
+#define NBPDR (1<<PDRSHIFT) /* bytes/page dir */
+#define PDRMASK (NBPDR-1)
+
+#define MAXPAGESIZES 2 /* maximum number of supported page sizes */
+
+/*
+ * Mach derived conversion macros
+ */
+#define trunc_page(x) ((x) & ~PAGE_MASK)
+#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
+#define trunc_4mpage(x) ((x) & ~PDRMASK)
+#define round_4mpage(x) ((((x)) + PDRMASK) & ~PDRMASK)
+
+#define atop(x) ((x) >> PAGE_SHIFT)
+#define ptoa(x) ((x) << PAGE_SHIFT)
+
+#define i386_btop(x) ((x) >> PAGE_SHIFT)
+#define i386_ptob(x) ((x) << PAGE_SHIFT)
+
+#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
+
+#define trunc_page_ps(va, ps) ((va) & ~(ps - 1))
+#define round_page_ps(va, ps) (((va) + (ps - 1)) & ~(ps - 1))
+#define aligned(a, t) (trunc_page_ps((u_long)(a), sizeof(t)) == (u_long)(a))
+
+#endif /* !_I386_INCLUDE_PARAM_H_ */