Index: head/sys/amd64/include/efi.h
===================================================================
--- head/sys/amd64/include/efi.h	(revision 324190)
+++ head/sys/amd64/include/efi.h	(revision 324191)
@@ -1,54 +1,56 @@
 /*-
  * Copyright (c) 2016 The FreeBSD Foundation
  * All rights reserved.
  *
  * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
  * under sponsorship from the FreeBSD Foundation.
  *
  * 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 __AMD64_INCLUDE_EFI_H_
 #define __AMD64_INCLUDE_EFI_H_
 
-#include <isa/rtc.h>
-
 /*
  * XXX: from gcc 6.2 manual:
  * Note, the ms_abi attribute for Microsoft Windows 64-bit targets
  * currently requires the -maccumulate-outgoing-args option.
  *
  * Avoid EFIABI_ATTR declarations for compilers that don't support it.
  * GCC support began in version 4.4.
  */
 #if defined(__clang__) || defined(__GNUC__) && \
     (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 4)
 #define	EFIABI_ATTR	__attribute__((ms_abi))
 #endif
 
+#ifdef _KERNEL
+#include <isa/rtc.h>
+
 #define	EFI_TIME_LOCK()		mtx_lock(&atrtc_time_lock);
 #define	EFI_TIME_UNLOCK()	mtx_unlock(&atrtc_time_lock);
 #define	EFI_TIME_OWNED()	mtx_assert(&atrtc_time_lock, MA_OWNED);
+#endif
 
 #endif /* __AMD64_INCLUDE_EFI_H_ */