1 /* SPDX-License-Identifier: GPL-2.0 */ 2 // Copyright (C) 2005-2017 Andes Technology Corporation 3 4 #ifndef __NDS32_SWAB_H__ 5 #define __NDS32_SWAB_H__ 6 7 #include <linux/types.h> 8 #include <linux/compiler.h> 9 ___arch__swab32(__u32 x)10static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) 11 { 12 __asm__("wsbh %0, %0\n\t" /* word swap byte within halfword */ 13 "rotri %0, %0, #16\n" 14 :"=r"(x) 15 :"0"(x)); 16 return x; 17 } 18 ___arch__swab16(__u16 x)19static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) 20 { 21 __asm__("wsbh %0, %0\n" /* word swap byte within halfword */ 22 :"=r"(x) 23 :"0"(x)); 24 return x; 25 } 26 27 #define __arch_swab32(x) ___arch__swab32(x) 28 #define __arch_swab16(x) ___arch__swab16(x) 29 30 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) 31 #define __BYTEORDER_HAS_U64__ 32 #define __SWAB_64_THRU_32__ 33 #endif 34 35 #endif /* __NDS32_SWAB_H__ */ 36