| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* |
| 3 | * OpenRISC Linux |
| 4 | * |
| 5 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| 6 | */ |
| 7 | |
| 8 | #ifndef __ASM_OPENRISC_FLS_H |
| 9 | #define __ASM_OPENRISC_FLS_H |
| 10 | |
| 11 | |
| 12 | #ifdef CONFIG_OPENRISC_HAVE_INST_FL1 |
| 13 | |
| 14 | static inline int fls(unsigned int x) |
| 15 | { |
| 16 | int ret; |
| 17 | |
| 18 | __asm__ ("l.fl1 %0,%1" |
| 19 | : "=r" (ret) |
| 20 | : "r" (x)); |
| 21 | |
| 22 | return ret; |
| 23 | } |
| 24 | |
| 25 | #else |
| 26 | #include <asm-generic/bitops/fls.h> |
| 27 | #endif |
| 28 | |
| 29 | #endif /* __ASM_OPENRISC_FLS_H */ |