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 22 static 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 28 static 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