summaryrefslogtreecommitdiff
path: root/arch/avr32/include/asm/byteorder.h
blob: d77b48ba73387ba57ac932e5a6676d43b1c6a584 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
/*
 * AVR32 endian-conversion functions.
 */
#ifndef __ASM_AVR32_BYTEORDER_H
#define __ASM_AVR32_BYTEORDER_H

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

#ifdef __CHECKER__
extern unsigned long __builtin_bswap_32(unsigned long x);
extern unsigned short __builtin_bswap_16(unsigned short x);
#endif

/*
 * avr32-linux-gcc versions earlier than 4.2 improperly sign-extends
 * the result.
 */
#if !(__GNUC__ == 4 && __GNUC_MINOR__ < 2)
#define __arch__swab32(x) __builtin_bswap_32(x)
#define __arch__swab16(x) __builtin_bswap_16(x)
#endif

#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif

#include <linux/byteorder/big_endian.h>

#endif /* __ASM_AVR32_BYTEORDER_H */