diff --git a/sys/compat/linuxkpi/common/include/asm/pgtable.h b/sys/compat/linuxkpi/common/include/asm/pgtable.h
index 9e66fab8eae4..93e1bbef9a12 100644
--- a/sys/compat/linuxkpi/common/include/asm/pgtable.h
+++ b/sys/compat/linuxkpi/common/include/asm/pgtable.h
@@ -1,45 +1,60 @@
 /*-
  * Copyright (c) 2010 Isilon Systems, Inc.
  * Copyright (c) 2010 iX Systems, Inc.
  * Copyright (c) 2010 Panasas, Inc.
  * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
  * 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 unmodified, 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 ``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 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 _LINUXKPI_ASM_PGTABLE_H_
 #define	_LINUXKPI_ASM_PGTABLE_H_
 
 #include <linux/page.h>
 
 typedef unsigned long	pteval_t;
 typedef unsigned long	pmdval_t;
 typedef unsigned long	pudval_t;
 typedef unsigned long	pgdval_t;
 typedef unsigned long	pgprotval_t;
 typedef struct page *pgtable_t;
 
 #define	pgprot_decrypted(prot)	(prot)
 
+#if defined(__i386__) || defined(__amd64__)
+#define	_PAGE_BIT_PRESENT	0
+#define	_PAGE_BIT_RW		1
+#define	_PAGE_BIT_USER		2
+#define	_PAGE_BIT_PWT		3
+#define	_PAGE_BIT_PCD		4
+#define	_PAGE_BIT_PAT		7
+
+#define	_PAGE_PRESENT	(((pteval_t) 1) << _PAGE_BIT_PRESENT)
+#define	_PAGE_RW	(((pteval_t) 1) << _PAGE_BIT_RW)
+#define	_PAGE_PWT	(((pteval_t) 1) << _PAGE_BIT_PWT)
+#define	_PAGE_PCD	(((pteval_t) 1) << _PAGE_BIT_PCD)
+#define	_PAGE_PAT	(((pteval_t) 1) << _PAGE_BIT_PAT)
+#endif
+
 #endif	/* _LINUXKPI_ASM_PGTABLE_H_ */