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Commit cfcac2f7 authored by Harvey Harrison's avatar Harvey Harrison Committed by Linus Torvalds
Browse files

blackfin: 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 af8e24e9

arch/blackfin/include/asm/Kbuild

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



unifdef-y += fixed_code.h

unifdef-y += swab.h

arch/blackfin/include/asm/byteorder.h

+1 −42
Original line number Diff line number Diff line 
#ifndef _BLACKFIN_BYTEORDER_H

#define _BLACKFIN_BYTEORDER_H



#include <asm/types.h>

#include <linux/compiler.h>



#ifdef __GNUC__



static __inline__ __attribute_const__ __u32 ___arch__swahb32(__u32 xx)

{

	__u32 tmp;

	__asm__("%1 = %0 >> 8 (V);\n\t"

		"%0 = %0 << 8 (V);\n\t"

		"%0 = %0 | %1;\n\t"

		: "+d"(xx), "=&d"(tmp));

	return xx;

}



static __inline__ __attribute_const__ __u32 ___arch__swahw32(__u32 xx)

{

	__u32 rv;

	__asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx));

	return rv;

}



#define __arch__swahb32(x) ___arch__swahb32(x)

#define __arch__swahw32(x) ___arch__swahw32(x)

#define __arch__swab32(x) ___arch__swahb32(___arch__swahw32(x))



static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 xx)

{

	__u32 xw = xx;

	__asm__("%0 <<= 8;\n	%0.L = %0.L + %0.H (NS);\n": "+d"(xw));

	return (__u16)xw;

}



#define __arch__swab16(x) ___arch__swab16(x)



#endif



#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)

#  define __BYTEORDER_HAS_U64__

#  define __SWAB_64_THRU_32__

#endif



#include <asm/swab.h>

#include <linux/byteorder/little_endian.h>



#endif				/* _BLACKFIN_BYTEORDER_H */

arch/blackfin/include/asm/swab.h

0 → 100644
+48 −0
Original line number Diff line number Diff line 
#ifndef _BLACKFIN_SWAB_H

#define _BLACKFIN_SWAB_H



#include <asm/types.h>

#include <linux/compiler.h>



#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)

#  define __SWAB_64_THRU_32__

#endif



#ifdef __GNUC__



static __inline__ __attribute_const__ __u32 __arch_swahb32(__u32 xx)

{

	__u32 tmp;

	__asm__("%1 = %0 >> 8 (V);\n\t"

		"%0 = %0 << 8 (V);\n\t"

		"%0 = %0 | %1;\n\t"

		: "+d"(xx), "=&d"(tmp));

	return xx;

}

#define __arch_swahb32 __arch_swahb32



static __inline__ __attribute_const__ __u32 __arch_swahw32(__u32 xx)

{

	__u32 rv;

	__asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx));

	return rv;

}

#define __arch_swahw32 __arch_swahw32



static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 xx)

{

	return __arch_swahb32(__arch_swahw32(xx));

}

#define __arch_swab32 __arch_swab32



static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 xx)

{

	__u32 xw = xx;

	__asm__("%0 <<= 8;\n	%0.L = %0.L + %0.H (NS);\n": "+d"(xw));

	return (__u16)xw;

}

#define __arch_swab16 __arch_swab16



#endif /* __GNUC__ */



#endif				/* _BLACKFIN_SWAB_H */