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9a8fd55899
The attached patches provides part 6 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
29 lines
767 B
C
29 lines
767 B
C
/*
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* include/asm-xtensa/unaligned.h
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*
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* Xtensa doesn't handle unaligned accesses efficiently.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 - 2005 Tensilica Inc.
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*/
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#ifndef _XTENSA_UNALIGNED_H
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#define _XTENSA_UNALIGNED_H
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#include <linux/string.h>
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/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
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#define get_unaligned(ptr) \
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({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
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#define put_unaligned(val, ptr) \
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({ __typeof__(*(ptr)) __tmp = (val); \
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memmove((ptr), &__tmp, sizeof(*(ptr))); \
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(void)0; })
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#endif /* _XTENSA_UNALIGNED_H */
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