1/*-
2 * Copyright (c) 2016 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
6 * under sponsorship from the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/11/sys/amd64/include/efi.h 338592 2018-09-11 18:31:57Z kib $
30 */
31
32#ifndef __AMD64_INCLUDE_EFI_H_
33#define __AMD64_INCLUDE_EFI_H_
34
35/*
36 * XXX: from gcc 6.2 manual:
37 * Note, the ms_abi attribute for Microsoft Windows 64-bit targets
38 * currently requires the -maccumulate-outgoing-args option.
39 *
40 * Avoid EFIABI_ATTR declarations for compilers that don't support it.
41 * GCC support began in version 4.4.
42 */
43#if defined(__clang__) || defined(__GNUC__) && \
44    (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 4)
45#define	EFIABI_ATTR	__attribute__((ms_abi))
46#endif
47
48#ifdef _KERNEL
49#include <isa/rtc.h>
50
51#define	EFI_TIME_LOCK()		mtx_lock(&atrtc_time_lock)
52#define	EFI_TIME_UNLOCK()	mtx_unlock(&atrtc_time_lock)
53#define	EFI_TIME_OWNED()	mtx_assert(&atrtc_time_lock, MA_OWNED)
54#endif
55
56#endif /* __AMD64_INCLUDE_EFI_H_ */
57