| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_SH64_BYTEORDER_H |
| 2 | #define __ASM_SH64_BYTEORDER_H |
| 3 | |
| 4 | /* |
| 5 | * This file is subject to the terms and conditions of the GNU General Public |
| 6 | * License. See the file "COPYING" in the main directory of this archive |
| 7 | * for more details. |
| 8 | * |
| 9 | * include/asm-sh64/byteorder.h |
| 10 | * |
| 11 | * Copyright (C) 2000, 2001 Paolo Alberelli |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #include <asm/types.h> |
| 16 | |
| Paul Mundt | 2126413 | 2006-09-12 14:36:46 +0900 | [diff] [blame] | 17 | static inline __attribute_const__ __u32 ___arch__swab32(__u32 x) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | { |
| 19 | __asm__("byterev %0, %0\n\t" |
| 20 | "shari %0, 32, %0" |
| 21 | : "=r" (x) |
| 22 | : "0" (x)); |
| 23 | return x; |
| 24 | } |
| 25 | |
| Paul Mundt | 2126413 | 2006-09-12 14:36:46 +0900 | [diff] [blame] | 26 | static inline __attribute_const__ __u16 ___arch__swab16(__u16 x) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | { |
| 28 | __asm__("byterev %0, %0\n\t" |
| 29 | "shari %0, 48, %0" |
| 30 | : "=r" (x) |
| 31 | : "0" (x)); |
| 32 | return x; |
| 33 | } |
| 34 | |
| 35 | #define __arch__swab32(x) ___arch__swab32(x) |
| 36 | #define __arch__swab16(x) ___arch__swab16(x) |
| 37 | |
| 38 | #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) |
| 39 | # define __BYTEORDER_HAS_U64__ |
| 40 | # define __SWAB_64_THRU_32__ |
| 41 | #endif |
| 42 | |
| 43 | #ifdef __LITTLE_ENDIAN__ |
| 44 | #include <linux/byteorder/little_endian.h> |
| 45 | #else |
| 46 | #include <linux/byteorder/big_endian.h> |
| 47 | #endif |
| 48 | |
| 49 | #endif /* __ASM_SH64_BYTEORDER_H */ |