| /* SPDX-License-Identifier: GPL-2.0 */ |
| // Copyright (C) 2005-2017 Andes Technology Corporation |
| |
| #ifndef __NDS32_SWAB_H__ |
| #define __NDS32_SWAB_H__ |
| |
| #include <linux/types.h> |
| #include <linux/compiler.h> |
| |
| static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) |
| { |
| __asm__("wsbh %0, %0\n\t" /* word swap byte within halfword */ |
| "rotri %0, %0, #16\n" |
| :"=r"(x) |
| :"0"(x)); |
| return x; |
| } |
| |
| static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) |
| { |
| __asm__("wsbh %0, %0\n" /* word swap byte within halfword */ |
| :"=r"(x) |
| :"0"(x)); |
| return x; |
| } |
| |
| #define __arch_swab32(x) ___arch__swab32(x) |
| #define __arch_swab16(x) ___arch__swab16(x) |
| |
| #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) |
| #define __BYTEORDER_HAS_U64__ |
| #define __SWAB_64_THRU_32__ |
| #endif |
| |
| #endif /* __NDS32_SWAB_H__ */ |
