1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * Copyright (C) 2012 Tobias Klauser <tklauser@distanz.ch> 4 * Copyright (C) 2011 Pyramid Technical Consultants, Inc. 5 * 6 * This file is subject to the terms and conditions of the GNU General 7 * Public License. See the file COPYING in the main directory of this 8 * archive for more details. 9 */ 10 11 #ifndef _ASM_NIOS2_SWAB_H 12 #define _ASM_NIOS2_SWAB_H 13 14 #include <linux/types.h> 15 #include <asm-generic/swab.h> 16 17 #ifdef CONFIG_NIOS2_CI_SWAB_SUPPORT 18 #ifdef __GNUC__ 19 20 #define __nios2_swab(x) \ 21 __builtin_custom_ini(CONFIG_NIOS2_CI_SWAB_NO, (x)) 22 23 static inline __attribute__((const)) __u16 __arch_swab16(__u16 x) 24 { 25 return (__u16) __nios2_swab(((__u32) x) << 16); 26 } 27 #define __arch_swab16 __arch_swab16 28 29 static inline __attribute__((const)) __u32 __arch_swab32(__u32 x) 30 { 31 return (__u32) __nios2_swab(x); 32 } 33 #define __arch_swab32 __arch_swab32 34 35 #endif /* __GNUC__ */ 36 #endif /* CONFIG_NIOS2_CI_SWAB_SUPPORT */ 37 38 #endif /* _ASM_NIOS2_SWAB_H */ 39