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f27bb139 MZ |
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 | ||
62479586 CM |
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 | ||
f27bb139 MZ |
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 | ||
f27bb139 MZ |
58 | #include <asm-generic/bitops/non-atomic.h> |
59 | #include <asm-generic/bitops/le.h> | |
62479586 CM |
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) | |
f27bb139 MZ |
66 | |
67 | #endif /* __ASM_BITOPS_H */ |