StrongARM platform-specific definitions.

6 files changed, 527 insertions, 0 deletions

diff --git a/sys/arm/include/ansi.h b/sys/arm/include/ansi.h
new file mode 100644
index 0000000..22e4379
--- /dev/null
+++ b/sys/arm/include/ansi.h
@@ -0,0 +1,121 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ *
+ *	@(#)ansi.h	8.2 (Berkeley) 1/4/94
+ * $FreeBSD$
+ */
+
+#ifndef	_ANSI_H_
+#define	_ANSI_H_
+
+/*
+ * Types which are fundamental to the implementation and may appear in
+ * more than one standard header are defined here.  Standard headers
+ * then use:
+ *	#ifdef	_BSD_SIZE_T_
+ *	typedef	_BSD_SIZE_T_ size_t;
+ *	#undef	_BSD_SIZE_T_
+ *	#endif
+ */
+#define	_BSD_CLOCK_T_		int		/* clock() */
+#define	_BSD_CLOCKID_T_		int		/* clockid_t */
+#define	_BSD_PTRDIFF_T_		int		/* ptr1 - ptr2 */
+#define	_BSD_SIZE_T_		unsigned int	/* sizeof() */
+#define	_BSD_SSIZE_T_		long		/* byte count or error */
+#define	_BSD_SUSECONDS_T_	int		/* suseconds_t */
+#define	_BSD_TIME_T_		long		/* time() */
+#define	_BSD_TIMER_T_		int		/* timer_t */
+
+#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC_MINOR__ > 95)
+#define	_BSD_VA_LIST_		__builtin_va_list  /* internally known to gcc */
+#else
+#define	_BSD_VA_LIST_		char *		/* va_list */
+#endif /*__GNUC__*/
+
+/*
+ * Types which are fundamental to the implementation and must be used
+ * in more than one standard header although they are only declared in
+ * one (perhaps nonstandard) header are defined here.  Standard headers
+ * use _BSD_XXX_T_ without undef'ing it.
+ */
+#define	_BSD_CT_RUNE_T_	int			/* arg type for ctype funcs */
+#define	_BSD_OFF_T_	__int64_t		/* file offset */
+#define	_BSD_PID_T_	int			/* process [group] */
+
+/*
+ * Runes (wchar_t) is declared to be an ``int'' instead of the more natural
+ * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
+ * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+ * it looks like 10646 will be a 31 bit standard.  This means that if your
+ * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+ * chosen over a long is that the is*() and to*() routines take ints (says
+ * ANSI C), but they use _RUNE_T_ instead of int.  By changing it here, you
+ * lose a bit of ANSI conformance, but your programs will still work.
+ *
+ * Note that _WCHAR_T_ and _RUNE_T_ must be of the same type.  When wchar_t
+ * and rune_t are typedef'd, _WCHAR_T_ will be undef'd, but _RUNE_T remains
+ * defined for ctype.h.
+ */
+#define	_BSD_WCHAR_T_	int			/* wchar_t */
+#define	_BSD_WINT_T_	int			/* wint_t */
+#define	_BSD_RUNE_T_	int			/* rune_t */
+
+/*
+ * Frequencies of the clock ticks reported by clock() and times().  They
+ * are the same as stathz for bogus historical reasons.  They should be
+ * 1e6 because clock() and times() are implemented using getrusage() and
+ * there is no good reason why they should be less accurate.  There is
+ * the bad reason that (broken) programs might not like clock_t or
+ * CLOCKS_PER_SEC being ``double'' (``unsigned long'' is not large enough
+ * to hold the required 24 hours worth of ticks if the frequency is
+ * 1000000ul, and ``unsigned long long'' would be nonstandard).
+ */
+#define	_BSD_CLK_TCK_		100
+#define	_BSD_CLOCKS_PER_SEC_	100
+
+/*
+ * Internal names for basic integral types.  Omit the typedef if
+ * not possible for a machine/compiler combination.
+ */
+typedef	__signed char		   __int8_t;
+typedef	unsigned char		  __uint8_t;
+typedef	short			  __int16_t;
+typedef	unsigned short		 __uint16_t;
+typedef	int			  __int32_t;
+typedef	unsigned int		 __uint32_t;
+typedef	long long		  __int64_t;
+typedef	unsigned long long	 __uint64_t;
+
+typedef	int			__intptr_t;
+typedef	unsigned int		__uintptr_t;
+
+#endif	/* _ANSI_H_ */
diff --git a/sys/arm/include/elf.h b/sys/arm/include/elf.h
new file mode 100644
index 0000000..4134494
--- /dev/null
+++ b/sys/arm/include/elf.h
@@ -0,0 +1,106 @@
+/*-
+ * Copyright (c) 2001 David E. O'Brien
+ * Copyright (c) 1996-1997 John D. Polstra.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_ELF_H_
+#define	_MACHINE_ELF_H_ 1
+
+/*
+ * EABI ELF definitions for the StrongARM architecture.
+ * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
+ */
+
+#include <sys/elf32.h>	/* Definitions common to all 32 bit architectures. */
+
+#define	__ELF_WORD_SIZE	32	/* Used by <sys/elf_generic.h> */
+#include <sys/elf_generic.h>
+
+#define	ELF_ARCH	EM_ARM
+
+#define	ELF_MACHINE_OK(x) ((x) == EM_ARM)
+
+/*
+ * Relocation types.
+ */
+
+#define	R_ARM_NONE		0	/* No relocation. */
+#define	R_ARM_PC24		1
+#define	R_ARM_ABS32		2
+#define	R_ARM_REL32		3
+#define	R_ARM_PC13		4
+#define	R_ARM_ABS16		5
+#define	R_ARM_ABS12		6
+#define	R_ARM_THM_ABS5		7
+#define	R_ARM_ABS8		8
+#define	R_ARM_SBREL32		9
+#define	R_ARM_THM_PC22		10
+#define	R_ARM_THM_PC8		11
+#define	R_ARM_AMP_VCALL9	12
+#define	R_ARM_SWI24		13
+#define	R_ARM_THM_SWI8		14
+#define	R_ARM_XPC25		15
+#define	R_ARM_THM_XPC22		16
+#define	R_ARM_COPY		20	/* Copy data from shared object. */
+#define	R_ARM_GLOB_DAT		21	/* Set GOT entry to data address. */
+#define	R_ARM_JUMP_SLOT		22	/* Set GOT entry to code address. */
+#define	R_ARM_RELATIVE		23	/* Add load address of shared object. */
+#define	R_ARM_GOTOFF		24	/* Add GOT-relative symbol address. *
+#define	R_ARM_GOTPC		25	/* Add PC-relative GOT table address. */
+#define	R_ARM_GOT32		26	/* Add PC-relative GOT offset. */
+#define	R_ARM_PLT32		27	/* Add PC-relative PLT offset. */
+#define	R_ARM_GNU_VTENTRY	100
+#define	R_ARM_GNU_VTINHERIT	101
+#define	R_ARM_RSBREL32		250
+#define	R_ARM_THM_RPC22		251
+#define	R_ARM_RREL32		252
+#define	R_ARM_RABS32		253
+#define	R_ARM_RPC24		254
+#define	R_ARM_RBASE		255
+
+#define R_ARM_COUNT		33	/* Count of defined relocation types. */
+
+
+/* Define "machine" characteristics */
+#define	ELF_TARG_CLASS	ELFCLASS32
+#define	ELF_TARG_DATA	ELFDATA2LSB
+#define	ELF_TARG_MACH	EM_ARM
+#define	ELF_TARG_VER	1
+
+#ifdef _KERNEL
+
+/*
+ * On the StrongARM we load the dynamic linker where a userland call
+ * to mmap(0, ...) would put it.  The rationale behind this
+ * calculation is that it leaves room for the heap to grow to
+ * its maximum allowed size.
+ */
+#define	ELF_RTLD_ADDR(vmspace) \
+    (round_page((vm_offset_t)(vmspace)->vm_daddr + MAXDSIZ))
+
+#endif /* _KERNEL */
+#endif /* !_MACHINE_ELF_H_ */
diff --git a/sys/arm/include/endian.h b/sys/arm/include/endian.h
new file mode 100644
index 0000000..163491f
--- /dev/null
+++ b/sys/arm/include/endian.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2001 David E. O'Brien
+ *
+ * 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. 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.
+ *
+ *	@(#)endian.h	8.1 (Berkeley) 6/10/93
+ * $NetBSD: endian.h,v 1.7 1999/08/21 05:53:51 simonb Exp $
+ * $FreeBSD$
+ */
+
+#ifndef _ENDIAN_H_
+#define	_ENDIAN_H_
+
+#define	BYTE_ORDER	LITTLE_ENDIAN
+
+#endif /* !_ENDIAN_H_ */
diff --git a/sys/arm/include/exec.h b/sys/arm/include/exec.h
new file mode 100644
index 0000000..afa3b12
--- /dev/null
+++ b/sys/arm/include/exec.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2001 David E. O'Brien
+ * All rights reserved.
+ *
+ * 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. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _EXEC_H_
+#define	_EXEC_H_
+
+#define __LDPGSZ	4096
+
+#endif /* !_EXEC_H_ */
diff --git a/sys/arm/include/lock.h b/sys/arm/include/lock.h
new file mode 100644
index 0000000..e36ac98
--- /dev/null
+++ b/sys/arm/include/lock.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 1997, by Steve Passe
+ * All rights reserved.
+ *
+ * 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. The name of the developer may NOT be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_LOCK_H_
+#define _MACHINE_LOCK_H_
+
+/*
+ * Simple spin lock.
+ * It is an error to hold one of these locks while a process is sleeping.
+ */
+struct simplelock {
+	volatile u_int	lock_data;
+};
+
+/* functions in mp_machdep.c */
+void	s_lock_init		__P((struct simplelock *));
+void	s_lock			__P((struct simplelock *));
+int	s_lock_try		__P((struct simplelock *));
+void	s_unlock_np		__P((struct simplelock *));
+
+#define COM_LOCK()
+#define COM_UNLOCK()
+#define COM_DISABLE_INTR()	COM_LOCK()
+#define COM_ENABLE_INTR()	COM_UNLOCK()
+
+#endif /* !_MACHINE_LOCK_H_ */
diff --git a/sys/arm/include/param.h b/sys/arm/include/param.h
new file mode 100644
index 0000000..7dda79d
--- /dev/null
+++ b/sys/arm/include/param.h
@@ -0,0 +1,175 @@
+/*-
+ * Copyright (c) 2001 David E. O'Brien
+ * 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.
+ *
+ *	from: @(#)param.h	5.8 (Berkeley) 6/28/91
+ * $FreeBSD$
+ */
+
+/*
+ * Machine dependent constants for StrongARM
+ */
+
+/*
+ * 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
+
+#ifndef	_MACHINE
+#define	_MACHIN		"arm32"
+#endif
+#ifndef _MACHINE_ARCH
+#define	_MACHINE_ARCH	"arm32"
+#endif
+
+#ifndef _NO_NAMESPACE_POLLUTION
+
+#ifndef _MACHINE_PARAM_H_
+#define	_MACHINE_PARAM_H_
+
+#ifndef MACHINE
+#define	MACHINE		"arm32"
+#endif
+#ifndef MACHINE_ARCH
+#define	MACHINE_ARCH	"arm32"
+#endif
+#define	MID_MACHINE	MID_ARM32
+
+#include <machine/cpu.h>
+
+/*
+ * OBJFORMAT_NAMES is a comma-separated list of the object formats
+ * that are supported on the architecture.
+ */
+#define	OBJFORMAT_NAMES		"elf"
+#define	OBJFORMAT_DEFAULT	"elf"
+
+#ifdef SMP
+#define	MAXCPU		2
+#else
+#define	MAXCPU		1
+#endif /* SMP */
+
+#define	ALIGNBYTES	_ALIGNBYTES
+#define	ALIGN(p)	_ALIGN(p)
+
+#define	PAGE_SHIFT	12
+#define	PAGE_SIZE	(1 << PAGE_SHIFT)	/* Page size */
+#define	PAGE_MASK	(PAGE_SIZE - 1)
+#define	NPTEPG		(PAGE_SIZE/(sizeof (pt_entry_t)))
+
+#define	KERNBASE	0x100000	/* start of kernel virtual */
+#define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)
+
+#define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
+#define	DEV_BSIZE	(1 << DEV_BSHIFT)
+
+#ifndef BLKDEV_IOSIZE
+#define	BLKDEV_IOSIZE	PAGE_SIZE	/* default block device I/O size */
+#endif
+#define	DFLTPHYS	(64 * 1024)	/* default max raw I/O transfer size */
+#define	MAXPHYS		(128 * 1024)	/* max raw I/O transfer size */
+#define	MAXDUMPPGS	(DFLTPHYS/PAGE_SIZE)
+
+#define	UPAGES		2		/* pages of u-area */
+#define	USPACE		(UPAGES * PAGE_SIZE)	/* total size of u-area */
+
+/*
+ * Constants related to network buffer management.
+ * MCLBYTES must be no larger than PAGE_SIZE.
+ */
+#ifndef	MSIZE
+#define	MSIZE		256		/* size of an mbuf */
+#endif	/* MSIZE */
+
+#ifndef	MCLSHIFT
+#define	MCLSHIFT	11		/* convert bytes to mbuf clusters */
+#endif	/* MCLSHIFT */
+#define	MCLBYTES	(1 << MCLSHIFT)	/* size of an mbuf cluster */
+
+/*
+ * Some macros for units conversion
+ */
+
+/* pages ("clicks") to bytes */
+#define	ctob(x)		((x) << PAGE_SHIFT)
+
+/* bytes to clicks */
+#define	btoc(x)		(((unsigned)(x) + PAGE_MASK) >> PAGE_SHIFT)
+
+/* pages ("clicks") to disk blocks */
+#define	ctod(x)		((x) << (PAGE_SHIFT - DEV_BSHIFT))
+#define	dtoc(x)		((x) >> (PAGE_SHIFT - DEV_BSHIFT))
+
+/* bytes to disk blocks */
+/*
+ * btodb() is messy and perhaps slow because `bytes' may be an off_t.  We
+ * want to shift an unsigned type to avoid sign extension and we don't
+ * want to widen `bytes' unnecessarily.  Assume that the result fits in
+ * a daddr_t.
+ */
+#define	btodb(bytes)	 		/* calculates (bytes / DEV_BSIZE) */ \
+	(sizeof (bytes) > sizeof(long) \
+	 ? (daddr_t)((unsigned long long)(bytes) >> DEV_BSHIFT) \
+	 : (daddr_t)((unsigned long)(bytes) >> DEV_BSHIFT))
+
+#define	dbtob(db)			/* calculates (db * DEV_BSIZE) */ \
+	((off_t)(db) << DEV_BSHIFT)
+
+/*
+ * Mach derived conversion macros
+ */
+#define	trunc_page(x)		((x) & ~PAGE_MASK)
+#define	round_page(x)		(((x) + PAGE_MASK) & ~PAGE_MASK)
+#define	trunc_4mpage(x)		((unsigned)(x) & ~PDRMASK)
+#define	round_4mpage(x)		((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
+
+#define	atop(x)			((unsigned)(x) >> PAGE_SHIFT)
+#define	ptoa(x)			((unsigned)(x) << PAGE_SHIFT)
+
+#define	arm32_btop(x)		((unsigned)(x) >> PAGE_SHIFT)
+#define	arm32_ptob(x)		((unsigned)(x) << PAGE_SHIFT)
+
+#define	pgtok(x)		((x) * (PAGE_SIZE / 1024))
+
+#endif /* !_MACHINE_PARAM_H_ */
+#endif /* !_NO_NAMESPACE_POLLUTION */