mirror of https://gitee.com/openkylin/linux.git
30 lines
992 B
C
30 lines
992 B
C
/*
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef _ASM_TILE_SWAB_H
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#define _ASM_TILE_SWAB_H
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/* Tile gcc is always >= 4.3.0, so we use __builtin_bswap. */
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#define __arch_swab32(x) __builtin_bswap32(x)
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#define __arch_swab64(x) __builtin_bswap64(x)
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/* Use the variant that is natural for the wordsize. */
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#ifdef CONFIG_64BIT
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#define __arch_swab16(x) (__builtin_bswap64(x) >> 48)
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#else
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#define __arch_swab16(x) (__builtin_bswap32(x) >> 16)
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#endif
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#endif /* _ASM_TILE_SWAB_H */
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