epoc32/include/stdapis/machine/param.h
branchSymbian2
changeset 2 2fe1408b6811
parent 0 061f57f2323e
--- a/epoc32/include/stdapis/machine/param.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/stdapis/machine/param.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,142 @@
-param.h
+/*-
+ * 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: src/sys/i386/include/param.h,v 1.79 2004/11/20 02:29:49 das Exp $
+ */
+
+/*
+ * 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
+
+#ifndef _MACHINE
+#define	_MACHINE	i386
+#endif
+#ifndef _MACHINE_ARCH
+#define	_MACHINE_ARCH	i386
+#endif
+
+#ifndef _NO_NAMESPACE_POLLUTION
+
+#ifndef _MACHINE_PARAM_H_
+#define	_MACHINE_PARAM_H_
+
+#ifndef MACHINE
+#define MACHINE		"i386"
+#endif
+#ifndef MACHINE_ARCH
+#define	MACHINE_ARCH	"i386"
+#endif
+#define MID_MACHINE	MID_I386
+
+#ifdef SMP
+#define MAXCPU		16
+#else
+#define MAXCPU		1
+#endif /* SMP */
+
+#define ALIGNBYTES	_ALIGNBYTES
+#define ALIGN(p)	_ALIGN(p)
+
+#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) */
+#else
+#define NPGPTD		1
+#define PDRSHIFT	22		/* LOG2(NBPDR) */
+#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 IOPAGES	2		/* pages of i/o permission bitmap */
+
+#ifndef KSTACK_PAGES
+#define KSTACK_PAGES 2		/* Includes pcb! */
+#endif
+#define KSTACK_GUARD_PAGES 1	/* pages of kstack guard; 0 disables */
+
+/*
+ * Ceiling on amount of swblock kva space, can be changed via
+ * the kern.maxswzone /boot/loader.conf variable.
+ */
+#ifndef VM_SWZONE_SIZE_MAX
+#define VM_SWZONE_SIZE_MAX	(32 * 1024 * 1024)
+#endif
+
+/*
+ * Ceiling on size of buffer cache (really only effects write queueing,
+ * the VM page cache is not effected), can be changed via
+ * the kern.maxbcache /boot/loader.conf variable.
+ */
+#ifndef VM_BCACHE_SIZE_MAX
+#define VM_BCACHE_SIZE_MAX	(200 * 1024 * 1024)
+#endif
+
+/*
+ * 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))
+
+#endif /* !_MACHINE_PARAM_H_ */
+#endif /* !_NO_NAMESPACE_POLLUTION */