| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * OpenRISC Linux |
| 3 | * |
| 4 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #ifndef __ASM_OPENRISC_FFS_H |
| 13 | #define __ASM_OPENRISC_FFS_H |
| 14 | |
| 15 | #ifdef CONFIG_OPENRISC_HAVE_INST_FF1 |
| 16 | |
| 17 | static inline int ffs(int x) |
| 18 | { |
| 19 | int ret; |
| 20 | |
| 21 | __asm__ ("l.ff1 %0,%1" |
| 22 | : "=r" (ret) |
| 23 | : "r" (x)); |
| 24 | |
| 25 | return ret; |
| 26 | } |
| 27 | |
| 28 | #else |
| 29 | #include <asm-generic/bitops/ffs.h> |
| 30 | #endif |
| 31 | |
| 32 | #endif /* __ASM_OPENRISC_FFS_H */ |