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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/m68k/include/uapi/asm/swab.h |
Initial import
Diffstat (limited to 'arch/m68k/include/uapi/asm/swab.h')
-rw-r--r-- | arch/m68k/include/uapi/asm/swab.h | 27 |
1 files changed, 27 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..b7b37a40d --- /dev/null +++ b/arch/m68k/include/uapi/asm/swab.h @@ -0,0 +1,27 @@ +#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 */ |