| Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation, version 2. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
| 15 | #ifndef _ASM_TILE_SWAB_H |
| 16 | #define _ASM_TILE_SWAB_H |
| 17 | |
| 18 | /* Tile gcc is always >= 4.3.0, so we use __builtin_bswap. */ |
| 19 | #define __arch_swab32(x) __builtin_bswap32(x) |
| 20 | #define __arch_swab64(x) __builtin_bswap64(x) |
| 21 | |
| 22 | /* Use the variant that is natural for the wordsize. */ |
| 23 | #ifdef CONFIG_64BIT |
| 24 | #define __arch_swab16(x) (__builtin_bswap64(x) >> 48) |
| 25 | #else |
| 26 | #define __arch_swab16(x) (__builtin_bswap32(x) >> 16) |
| 27 | #endif |
| 28 | |
| 29 | #endif /* _ASM_TILE_SWAB_H */ |