diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/m68k/include/uapi/asm/swab.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/m68k/include/uapi/asm/swab.h b/arch/m68k/include/uapi/asm/swab.h new file mode 100644 index 000000000..9ef4fafba --- /dev/null +++ b/arch/m68k/include/uapi/asm/swab.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _M68K_SWAB_H +#define _M68K_SWAB_H + +#include <linux/types.h> +#include <linux/compiler.h> + +#define __SWAB_64_THRU_32__ + +#if defined (__mcfisaaplus__) || defined (__mcfisac__) +static inline __attribute_const__ __u32 __arch_swab32(__u32 val) +{ + __asm__("byterev %0" : "=d" (val) : "0" (val)); + return val; +} + +#define __arch_swab32 __arch_swab32 +#elif !defined(__mcoldfire__) + +static inline __attribute_const__ __u32 __arch_swab32(__u32 val) +{ + __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val)); + return val; +} +#define __arch_swab32 __arch_swab32 +#endif + +#endif /* _M68K_SWAB_H */ |