Warning: That file was not part of the compilation database. It may have many parsing errors.
| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef _ASM_GENERIC_BITOPS_ATOMIC_H_ |
| 3 | #define _ASM_GENERIC_BITOPS_ATOMIC_H_ |
| 4 | |
| 5 | #include <linux/atomic.h> |
| 6 | #include <linux/compiler.h> |
| 7 | #include <asm/barrier.h> |
| 8 | |
| 9 | /* |
| 10 | * Implementation of atomic bitops using atomic-fetch ops. |
| 11 | * See Documentation/atomic_bitops.txt for details. |
| 12 | */ |
| 13 | |
| 14 | static __always_inline void |
| 15 | arch_set_bit(unsigned int nr, volatile unsigned long *p) |
| 16 | { |
| 17 | p += BIT_WORD(nr); |
| 18 | raw_atomic_long_or(BIT_MASK(nr), v: (atomic_long_t *)p); |
| 19 | } |
| 20 | |
| 21 | static __always_inline void |
| 22 | arch_clear_bit(unsigned int nr, volatile unsigned long *p) |
| 23 | { |
| 24 | p += BIT_WORD(nr); |
| 25 | raw_atomic_long_andnot(BIT_MASK(nr), v: (atomic_long_t *)p); |
| 26 | } |
| 27 | |
| 28 | static __always_inline void |
| 29 | arch_change_bit(unsigned int nr, volatile unsigned long *p) |
| 30 | { |
| 31 | p += BIT_WORD(nr); |
| 32 | raw_atomic_long_xor(BIT_MASK(nr), v: (atomic_long_t *)p); |
| 33 | } |
| 34 | |
| 35 | static __always_inline int |
| 36 | arch_test_and_set_bit(unsigned int nr, volatile unsigned long *p) |
| 37 | { |
| 38 | long old; |
| 39 | unsigned long mask = BIT_MASK(nr); |
| 40 | |
| 41 | p += BIT_WORD(nr); |
| 42 | old = raw_atomic_long_fetch_or(i: mask, v: (atomic_long_t *)p); |
| 43 | return !!(old & mask); |
| 44 | } |
| 45 | |
| 46 | static __always_inline int |
| 47 | arch_test_and_clear_bit(unsigned int nr, volatile unsigned long *p) |
| 48 | { |
| 49 | long old; |
| 50 | unsigned long mask = BIT_MASK(nr); |
| 51 | |
| 52 | p += BIT_WORD(nr); |
| 53 | old = raw_atomic_long_fetch_andnot(i: mask, v: (atomic_long_t *)p); |
| 54 | return !!(old & mask); |
| 55 | } |
| 56 | |
| 57 | static __always_inline int |
| 58 | arch_test_and_change_bit(unsigned int nr, volatile unsigned long *p) |
| 59 | { |
| 60 | long old; |
| 61 | unsigned long mask = BIT_MASK(nr); |
| 62 | |
| 63 | p += BIT_WORD(nr); |
| 64 | old = raw_atomic_long_fetch_xor(i: mask, v: (atomic_long_t *)p); |
| 65 | return !!(old & mask); |
| 66 | } |
| 67 | |
| 68 | #include <asm-generic/bitops/instrumented-atomic.h> |
| 69 | |
| 70 | #endif /* _ASM_GENERIC_BITOPS_ATOMIC_H */ |
| 71 |
Warning: That file was not part of the compilation database. It may have many parsing errors.