| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| 2 | #ifndef _M68K_SWAB_H |
| 3 | #define _M68K_SWAB_H |
| 4 | |
| 5 | #include <linux/types.h> |
| 6 | #include <linux/compiler.h> |
| 7 | |
| 8 | #define __SWAB_64_THRU_32__ |
| 9 | |
| 10 | #if defined (__mcfisaaplus__) || defined (__mcfisac__) |
| 11 | static inline __attribute_const__ __u32 __arch_swab32(__u32 val) |
| 12 | { |
| 13 | __asm__("byterev %0" : "=d" (val) : "0" (val)); |
| 14 | return val; |
| 15 | } |
| 16 | |
| 17 | #define __arch_swab32 __arch_swab32 |
| 18 | #elif !defined(__mcoldfire__) |
| 19 | |
| 20 | static inline __attribute_const__ __u32 __arch_swab32(__u32 val) |
| 21 | { |
| 22 | __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val)); |
| 23 | return val; |
| 24 | } |
| 25 | #define __arch_swab32 __arch_swab32 |
| 26 | #endif |
| 27 | |
| 28 | #endif /* _M68K_SWAB_H */ |