forked from Minki/linux
145452649d
Make asm/swab.h compatible with ColdFire ISA_B CPUs. Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
28 lines
602 B
C
28 lines
602 B
C
#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 */
|