projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b920de1b DH |
1 | /* MN10300 Byte-order primitive construction |
| 2 | * | |
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 4 | * Written by David Howells (dhowells@redhat.com) | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public Licence | |
| 8 | * as published by the Free Software Foundation; either version | |
| 9 | * 2 of the Licence, or (at your option) any later version. | |
| 10 | */ | |
| 11 | #ifndef _ASM_BYTEORDER_H | |
| 12 | #define _ASM_BYTEORDER_H | |
| 13 | ||
| 14 | #include <asm/types.h> | |
| 15 | ||
| 16 | #ifdef __GNUC__ | |
| 17 | ||
| 18 | static inline __attribute__((const)) | |
| 19 | __u32 ___arch__swab32(__u32 x) | |
| 20 | { | |
| 21 | __u32 ret; | |
| 22 | asm("swap %1,%0" : "=r" (ret) : "r" (x)); | |
| 23 | return ret; | |
| 24 | } | |
| 25 | ||
| 26 | static inline __attribute__((const)) | |
| 27 | __u16 ___arch__swab16(__u16 x) | |
| 28 | { | |
| 29 | __u16 ret; | |
| 30 | asm("swaph %1,%0" : "=r" (ret) : "r" (x)); | |
| 31 | return ret; | |
| 32 | } | |
| 33 | ||
| 34 | #define __arch__swab32(x) ___arch__swab32(x) | |
| 35 | #define __arch__swab16(x) ___arch__swab16(x) | |
| 36 | ||
| 37 | #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) | |
| 38 | # define __BYTEORDER_HAS_U64__ | |
| 39 | # define __SWAB_64_THRU_32__ | |
| 40 | #endif | |
| 41 | ||
| 42 | #endif /* __GNUC__ */ | |
| 43 | ||
| 44 | #include <linux/byteorder/little_endian.h> | |
| 45 | ||
| 46 | #endif /* _ASM_BYTEORDER_H */ |