[net-next-2.6.git] / arch / cris / include / arch-v10 / arch / swab.h

#ifndef _CRIS_ARCH_SWAB_H
#define _CRIS_ARCH_SWAB_H

#include <asm/types.h>
#include <linux/compiler.h>

#define __SWAB_64_THRU_32__

/* we just define these two (as we can do the swap in a single
 * asm instruction in CRIS) and the arch-independent files will put
 * them together into ntohl etc.
 */

static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{
	__asm__ ("swapwb %0" : "=r" (x) : "0" (x));

	return(x);
}
#define __arch_swab32 __arch_swab32

static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
{
	__asm__ ("swapb %0" : "=r" (x) : "0" (x));

	return(x);
}
#define __arch_swab16 __arch_swab16

#endif
Commit	Line	Data
aa0effbd HH	1	#ifndef _CRIS_ARCH_SWAB_H
aa0effbd HH	2	#define _CRIS_ARCH_SWAB_H
1da177e4 LT	3
	4	#include <asm/types.h>
	5	#include <linux/compiler.h>
	6
aa0effbd HH	7	#define __SWAB_64_THRU_32__
aa0effbd HH	8
1da177e4 LT	9	/* we just define these two (as we can do the swap in a single
	10	* asm instruction in CRIS) and the arch-independent files will put
	11	* them together into ntohl etc.
	12	*/
	13
aa0effbd	14	static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
1da177e4 LT	15	{
1da177e4 LT	16	__asm__ ("swapwb %0" : "=r" (x) : "0" (x));
aa0effbd	17
1da177e4 LT	18	return(x);
1da177e4 LT	19	}
aa0effbd	20	#define __arch_swab32 __arch_swab32
1da177e4	21
aa0effbd	22	static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
1da177e4 LT	23	{
1da177e4 LT	24	__asm__ ("swapb %0" : "=r" (x) : "0" (x));
aa0effbd	25
1da177e4 LT	26	return(x);
1da177e4 LT	27	}
aa0effbd	28	#define __arch_swab16 __arch_swab16
1da177e4 LT	29
1da177e4 LT	30	#endif