26 lines
737 B
C
26 lines
737 B
C
#ifndef __ASM_AVR32_UNALIGNED_H
|
|
#define __ASM_AVR32_UNALIGNED_H
|
|
|
|
/*
|
|
* AVR32 can handle some unaligned accesses, depending on the
|
|
* implementation. The AVR32 AP implementation can handle unaligned
|
|
* words, but halfwords must be halfword-aligned, and doublewords must
|
|
* be word-aligned.
|
|
*
|
|
* TODO: Make all this CPU-specific and optimize.
|
|
*/
|
|
|
|
#include <linux/string.h>
|
|
|
|
/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
|
|
|
|
#define get_unaligned(ptr) \
|
|
({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
|
|
|
|
#define put_unaligned(val, ptr) \
|
|
({ __typeof__(*(ptr)) __tmp = (val); \
|
|
memmove((ptr), &__tmp, sizeof(*(ptr))); \
|
|
(void)0; })
|
|
|
|
#endif /* __ASM_AVR32_UNALIGNED_H */
|