| Marc Zyngier | f27bb13 | 2012-03-05 11:49:33 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 ARM Ltd. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | */ |
| 16 | #ifndef __ASM_BITOPS_H |
| 17 | #define __ASM_BITOPS_H |
| 18 | |
| 19 | #include <linux/compiler.h> |
| 20 | |
| 21 | #include <asm/barrier.h> |
| 22 | |
| 23 | /* |
| 24 | * clear_bit may not imply a memory barrier |
| 25 | */ |
| 26 | #ifndef smp_mb__before_clear_bit |
| 27 | #define smp_mb__before_clear_bit() smp_mb() |
| 28 | #define smp_mb__after_clear_bit() smp_mb() |
| 29 | #endif |
| 30 | |
| 31 | #ifndef _LINUX_BITOPS_H |
| 32 | #error only <linux/bitops.h> can be included directly |
| 33 | #endif |
| 34 | |
| Catalin Marinas | 6247958 | 2013-03-21 16:28:47 +0000 | [diff] [blame] | 35 | /* |
| 36 | * Little endian assembly atomic bitops. |
| 37 | */ |
| 38 | extern void set_bit(int nr, volatile unsigned long *p); |
| 39 | extern void clear_bit(int nr, volatile unsigned long *p); |
| 40 | extern void change_bit(int nr, volatile unsigned long *p); |
| 41 | extern int test_and_set_bit(int nr, volatile unsigned long *p); |
| 42 | extern int test_and_clear_bit(int nr, volatile unsigned long *p); |
| 43 | extern int test_and_change_bit(int nr, volatile unsigned long *p); |
| 44 | |
| Marc Zyngier | f27bb13 | 2012-03-05 11:49:33 +0000 | [diff] [blame] | 45 | #include <asm-generic/bitops/builtin-__ffs.h> |
| 46 | #include <asm-generic/bitops/builtin-ffs.h> |
| 47 | #include <asm-generic/bitops/builtin-__fls.h> |
| 48 | #include <asm-generic/bitops/builtin-fls.h> |
| 49 | |
| 50 | #include <asm-generic/bitops/ffz.h> |
| 51 | #include <asm-generic/bitops/fls64.h> |
| 52 | #include <asm-generic/bitops/find.h> |
| 53 | |
| 54 | #include <asm-generic/bitops/sched.h> |
| 55 | #include <asm-generic/bitops/hweight.h> |
| 56 | #include <asm-generic/bitops/lock.h> |
| 57 | |
| Marc Zyngier | f27bb13 | 2012-03-05 11:49:33 +0000 | [diff] [blame] | 58 | #include <asm-generic/bitops/non-atomic.h> |
| 59 | #include <asm-generic/bitops/le.h> |
| Catalin Marinas | 6247958 | 2013-03-21 16:28:47 +0000 | [diff] [blame] | 60 | |
| 61 | /* |
| 62 | * Ext2 is defined to use little-endian byte ordering. |
| 63 | */ |
| 64 | #define ext2_set_bit_atomic(lock, nr, p) test_and_set_bit_le(nr, p) |
| 65 | #define ext2_clear_bit_atomic(lock, nr, p) test_and_clear_bit_le(nr, p) |
| Marc Zyngier | f27bb13 | 2012-03-05 11:49:33 +0000 | [diff] [blame] | 66 | |
| 67 | #endif /* __ASM_BITOPS_H */ |