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35 lines
810 B
35 lines
810 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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// Copyright (C) 2005-2017 Andes Technology Corporation |
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#ifndef __NDS32_SWAB_H__ |
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#define __NDS32_SWAB_H__ |
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#include <linux/types.h> |
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#include <linux/compiler.h> |
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static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) |
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{ |
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__asm__("wsbh %0, %0\n\t" /* word swap byte within halfword */ |
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"rotri %0, %0, #16\n" |
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:"=r"(x) |
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:"0"(x)); |
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return x; |
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} |
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static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) |
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{ |
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__asm__("wsbh %0, %0\n" /* word swap byte within halfword */ |
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:"=r"(x) |
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:"0"(x)); |
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return x; |
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} |
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#define __arch_swab32(x) ___arch__swab32(x) |
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#define __arch_swab16(x) ___arch__swab16(x) |
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#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) |
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#define __BYTEORDER_HAS_U64__ |
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#define __SWAB_64_THRU_32__ |
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#endif |
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#endif /* __NDS32_SWAB_H__ */
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