Commit f4d2b145 authored by Harvey Harrison's avatar Harvey Harrison Committed by Linus Torvalds
Browse files

sparc: 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 1af84a62

arch/sparc/include/asm/Kbuild

+1 −0
Original line number Diff line number Diff line
@@ -17,3 +17,4 @@ header-y += traps.h 
header-y += uctx.h

header-y += utrap.h

header-y += watchdog.h

header-y += swab.h

arch/sparc/include/asm/byteorder.h

+2 −44
Original line number Diff line number Diff line 
#ifndef _SPARC_BYTEORDER_H

#define _SPARC_BYTEORDER_H



#include <linux/types.h>

#include <asm/asi.h>



#define __BIG_ENDIAN



#if defined(__sparc__) && defined(__arch64__)

static inline __u16 __arch_swab16p(const __u16 *addr)

{

	__u16 ret;



	__asm__ __volatile__ ("lduha [%1] %2, %0"

			      : "=r" (ret)

			      : "r" (addr), "i" (ASI_PL));

	return ret;

}

#define __arch_swab16p __arch_swab16p



static inline __u32 __arch_swab32p(const __u32 *addr)

{

	__u32 ret;



	__asm__ __volatile__ ("lduwa [%1] %2, %0"

			      : "=r" (ret)

			      : "r" (addr), "i" (ASI_PL));

	return ret;

}

#define __arch_swab32p __arch_swab32p



static inline __u64 __arch_swab64p(const __u64 *addr)

{

	__u64 ret;



	__asm__ __volatile__ ("ldxa [%1] %2, %0"

			      : "=r" (ret)

			      : "r" (addr), "i" (ASI_PL));

	return ret;

}

#define __arch_swab64p __arch_swab64p



#else

#define __SWAB_64_THRU_32__

#endif /* defined(__sparc__) && defined(__arch64__) */



#include <linux/byteorder.h>

#include <asm/swab.h>

#include <linux/byteorder/big_endian.h>



#endif /* _SPARC_BYTEORDER_H */

arch/sparc/include/asm/swab.h

0 → 100644
+45 −0
Original line number Diff line number Diff line 
#ifndef _SPARC_SWAB_H

#define _SPARC_SWAB_H



#include <linux/types.h>

#include <asm/asi.h>



#if defined(__sparc__) && defined(__arch64__)

static inline __u16 __arch_swab16p(const __u16 *addr)

{

	__u16 ret;



	__asm__ __volatile__ ("lduha [%1] %2, %0"

			      : "=r" (ret)

			      : "r" (addr), "i" (ASI_PL));

	return ret;

}

#define __arch_swab16p __arch_swab16p



static inline __u32 __arch_swab32p(const __u32 *addr)

{

	__u32 ret;



	__asm__ __volatile__ ("lduwa [%1] %2, %0"

			      : "=r" (ret)

			      : "r" (addr), "i" (ASI_PL));

	return ret;

}

#define __arch_swab32p __arch_swab32p



static inline __u64 __arch_swab64p(const __u64 *addr)

{

	__u64 ret;



	__asm__ __volatile__ ("ldxa [%1] %2, %0"

			      : "=r" (ret)

			      : "r" (addr), "i" (ASI_PL));

	return ret;

}

#define __arch_swab64p __arch_swab64p



#else

#define __SWAB_64_THRU_32__

#endif /* defined(__sparc__) && defined(__arch64__) */



#endif /* _SPARC_SWAB_H */