The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/include/vm.h

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    1 /*-
    2  * Copyright (c) 2009 Hudson River Trading LLC
    3  * Written by: John H. Baldwin <jhb@FreeBSD.org>
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD: releng/10.2/sys/i386/include/vm.h 283927 2015-06-02 19:20:39Z jhb $
   28  */
   29 
   30 #ifndef _MACHINE_VM_H_
   31 #define _MACHINE_VM_H_
   32 
   33 #include <machine/specialreg.h>
   34 
   35 /* Memory attributes. */
   36 #define VM_MEMATTR_UNCACHEABLE          ((vm_memattr_t)PAT_UNCACHEABLE)
   37 #define VM_MEMATTR_WRITE_COMBINING      ((vm_memattr_t)PAT_WRITE_COMBINING)
   38 #define VM_MEMATTR_WRITE_THROUGH        ((vm_memattr_t)PAT_WRITE_THROUGH)
   39 #define VM_MEMATTR_WRITE_PROTECTED      ((vm_memattr_t)PAT_WRITE_PROTECTED)
   40 #define VM_MEMATTR_WRITE_BACK           ((vm_memattr_t)PAT_WRITE_BACK)
   41 #define VM_MEMATTR_WEAK_UNCACHEABLE     ((vm_memattr_t)PAT_UNCACHED)
   42 
   43 #define VM_MEMATTR_DEFAULT              VM_MEMATTR_WRITE_BACK
   44 
   45 #endif /* !_MACHINE_VM_H_ */

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