diff options
Diffstat (limited to 'arch/c6x/include/asm/swab.h')
| -rw-r--r-- | arch/c6x/include/asm/swab.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/c6x/include/asm/swab.h b/arch/c6x/include/asm/swab.h new file mode 100644 index 00000000000..fd4bb0520e5 --- /dev/null +++ b/arch/c6x/include/asm/swab.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2011 Texas Instruments Incorporated + * Author: Mark Salter <msalter@redhat.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef _ASM_C6X_SWAB_H +#define _ASM_C6X_SWAB_H + +static inline __attribute_const__ __u16 __c6x_swab16(__u16 val) +{ + asm("swap4 .l1 %0,%0\n" : "+a"(val)); + return val; +} + +static inline __attribute_const__ __u32 __c6x_swab32(__u32 val) +{ + asm("swap4 .l1 %0,%0\n" + "swap2 .l1 %0,%0\n" + : "+a"(val)); + return val; +} + +static inline __attribute_const__ __u64 __c6x_swab64(__u64 val) +{ + asm(" swap2 .s1 %p0,%P0\n" + "|| swap2 .l1 %P0,%p0\n" + " swap4 .l1 %p0,%p0\n" + " swap4 .l1 %P0,%P0\n" + : "+a"(val)); + return val; +} + +static inline __attribute_const__ __u32 __c6x_swahw32(__u32 val) +{ + asm("swap2 .l1 %0,%0\n" : "+a"(val)); + return val; +} + +static inline __attribute_const__ __u32 __c6x_swahb32(__u32 val) +{ + asm("swap4 .l1 %0,%0\n" : "+a"(val)); + return val; +} + +#define __arch_swab16 __c6x_swab16 +#define __arch_swab32 __c6x_swab32 +#define __arch_swab64 __c6x_swab64 +#define __arch_swahw32 __c6x_swahw32 +#define __arch_swahb32 __c6x_swahb32 + +#endif /* _ASM_C6X_SWAB_H */ |