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+/*
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * The Mach Operating System project at Carnegie-Mellon University.
+ *
+ * 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: @(#)vm_param.h 8.1 (Berkeley) 6/11/93
+ *
+ *
+ * Copyright (c) 1987, 1990 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Authors: Avadis Tevanian, Jr., Michael Wayne Young
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
+ * School of Computer Science
+ * Carnegie Mellon University
+ * Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ *
+ * $Id$
+ */
+
+/*
+ * Machine independent virtual memory parameters.
+ */
+
+#ifndef _VM_PARAM_
+#define _VM_PARAM_
+
+#include <machine/vmparam.h>
+
+/*
+ * The machine independent pages are refered to as PAGES. A page
+ * is some number of hardware pages, depending on the target machine.
+ */
+#define DEFAULT_PAGE_SIZE 4096
+
+#if 0
+
+/*
+ * All references to the size of a page should be done with PAGE_SIZE
+ * or PAGE_SHIFT. The fact they are variables is hidden here so that
+ * we can easily make them constant if we so desire.
+ */
+#ifndef PAGE_SIZE
+#define PAGE_SIZE cnt.v_page_size /* size of page */
+#endif
+#ifndef PAGE_MASK
+#define PAGE_MASK page_mask /* size of page - 1 */
+#endif
+#ifndef PAGE_SHIFT
+#define PAGE_SHIFT page_shift /* bits to shift for pages */
+#endif
+
+#endif
+
+#ifdef KERNEL
+extern vm_size_t page_mask;
+extern int page_shift;
+
+#endif
+
+/*
+ * CTL_VM identifiers
+ */
+#define VM_METER 1 /* struct vmmeter */
+#define VM_LOADAVG 2 /* struct loadavg */
+#define VM_V_FREE_MIN 3 /* cnt.v_free_min */
+#define VM_V_FREE_TARGET 4 /* cnt.v_free_target */
+#define VM_V_FREE_RESERVED 5 /* cnt.v_free_reserved */
+#define VM_V_INACTIVE_TARGET 6 /* cnt.v_inactive_target */
+#define VM_V_CACHE_MIN 7 /* cnt.v_cache_max */
+#define VM_V_CACHE_MAX 8 /* cnt.v_cache_min */
+#define VM_V_PAGEOUT_FREE_MIN 9 /* cnt.v_pageout_free_min */
+#define VM_PAGEOUT_ALGORITHM 10 /* pageout algorithm */
+#define VM_SWAPPING_ENABLED 11 /* swapping enabled */
+#define VM_MAXID 12 /* number of valid vm ids */
+
+#define CTL_VM_NAMES { \
+ { 0, 0 }, \
+ { "vmmeter", CTLTYPE_STRUCT }, \
+ { "loadavg", CTLTYPE_STRUCT }, \
+ { "v_free_min", CTLTYPE_INT }, \
+ { "v_free_target", CTLTYPE_INT }, \
+ { "v_free_reserved", CTLTYPE_INT }, \
+ { "v_inactive_target", CTLTYPE_INT }, \
+ { "v_cache_min", CTLTYPE_INT }, \
+ { "v_cache_max", CTLTYPE_INT }, \
+ { "v_pageout_free_min", CTLTYPE_INT}, \
+ { "pageout_algorithm", CTLTYPE_INT}, \
+ { "swapping_enabled", CTLTYPE_INT},\
+}
+
+/*
+ * Return values from the VM routines.
+ */
+#define KERN_SUCCESS 0
+#define KERN_INVALID_ADDRESS 1
+#define KERN_PROTECTION_FAILURE 2
+#define KERN_NO_SPACE 3
+#define KERN_INVALID_ARGUMENT 4
+#define KERN_FAILURE 5
+#define KERN_RESOURCE_SHORTAGE 6
+#define KERN_NOT_RECEIVER 7
+#define KERN_NO_ACCESS 8
+
+#ifndef ASSEMBLER
+/*
+ * Convert addresses to pages and vice versa.
+ * No rounding is used.
+ */
+#ifdef KERNEL
+#define num_pages(x) \
+ ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT))
+
+extern vm_size_t mem_size; /* size of physical memory (bytes) */
+extern vm_offset_t first_addr; /* first physical page */
+extern vm_offset_t last_addr; /* last physical page */
+#endif /* KERNEL */
+#endif /* ASSEMBLER */
+#endif /* _VM_PARAM_ */