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Commit c6f09f0c authored by Harvey Harrison's avatar Harvey Harrison Committed by Linus Torvalds
Browse files

m68k: introduce asm/swab.h 



Signed-off-by: default avatarHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5d30a683

include/asm-m68k/Kbuild

+1 −0
Original line number Original line Diff line number Diff line 
include include/asm-generic/Kbuild.asm

include include/asm-generic/Kbuild.asm

header-y += cachectl.h

header-y += cachectl.h

unifdef-y += swab.h

include/asm-m68k/byteorder.h

+2 −14
Original line number Original line Diff line number Diff line 
#ifndef _M68K_BYTEORDER_H

#ifndef _M68K_BYTEORDER_H

#define _M68K_BYTEORDER_H

#define _M68K_BYTEORDER_H





#include <asm/types.h>

#include <asm/swab.h>

#include <linux/compiler.h>

#include <linux/byteorder/big_endian.h>



#define __BIG_ENDIAN

#define __SWAB_64_THRU_32__



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



#include <linux/byteorder.h>





#endif /* _M68K_BYTEORDER_H */
 
#endif /* _M68K_BYTEORDER_H */

include/asm-m68k/swab.h

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+16 −0
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#ifndef _M68K_SWAB_H

#define _M68K_SWAB_H



#include <asm/types.h>

#include <linux/compiler.h>



#define __SWAB_64_THRU_32__



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 /* _M68K_SWAB_H */