Release 4.18 arch/nds32/include/asm/swab.h

// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2005-2017 Andes Technology Corporation

#ifndef __NDS32_SWAB_H__

#define __NDS32_SWAB_H__

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



static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
{
	__asm__("wsbh   %0, %0\n\t"	/* word swap byte within halfword */
		"rotri  %0, %0, #16\n"
                :"=r"(x)
                :"0"(x));
	return x;
}

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static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
{
	__asm__("wsbh   %0, %0\n"	/* word swap byte within halfword */
		:"=r"(x)
                :"0"(x));
	return x;
}

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#define __arch_swab32(x) ___arch__swab32(x)

#define __arch_swab16(x) ___arch__swab16(x)

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

#define __BYTEORDER_HAS_U64__

#define __SWAB_64_THRU_32__
#endif

#endif /* __NDS32_SWAB_H__ */
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Directory: arch/nds32/include/asm

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