1/*
2 * Copyright (C) 2012 Tobias Klauser <tklauser@distanz.ch>
3 * Copyright (C) 2011 Pyramid Technical Consultants, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General
6 * Public License. See the file COPYING in the main directory of this
7 * archive for more details.
8 */
9
10#ifndef _ASM_NIOS2_SWAB_H
11#define _ASM_NIOS2_SWAB_H
12
13#include <linux/types.h>
14#include <asm-generic/swab.h>
15
16#ifdef CONFIG_NIOS2_CI_SWAB_SUPPORT
17#ifdef __GNUC__
18
19#define __nios2_swab(x)		\
20	__builtin_custom_ini(CONFIG_NIOS2_CI_SWAB_NO, (x))
21
22static inline __attribute__((const)) __u16 __arch_swab16(__u16 x)
23{
24	return (__u16) __nios2_swab(((__u32) x) << 16);
25}
26#define __arch_swab16 __arch_swab16
27
28static inline __attribute__((const)) __u32 __arch_swab32(__u32 x)
29{
30	return (__u32) __nios2_swab(x);
31}
32#define __arch_swab32 __arch_swab32
33
34#endif /* __GNUC__ */
35#endif /* CONFIG_NIOS2_CI_SWAB_SUPPORT */
36
37#endif /* _ASM_NIOS2_SWAB_H */
38