include/asm/bitops.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
18 #include <asm-generic/bitops/__ffs.h>
19 #include <asm-generic/bitops/ffz.h>
20 #include <asm-generic/bitops/fls.h>
21 #include <asm-generic/bitops/__fls.h>
22 #include <asm-generic/bitops/fls64.h>
23 #include <asm-generic/bitops/sched.h>
24 #include <asm-generic/bitops/ffs.h>
26 #include <asm-generic/bitops/hweight.h>
65  * test_and_set_bit - Set a bit and return its old value
71 static inline int test_and_set_bit(int nr, volatile unsigned long *addr)  in test_and_set_bit()
77  * test_and_clear_bit - Clear a bit and return its old value
83 static inline int test_and_clear_bit(int nr, volatile unsigned long *addr)  in test_and_clear_bit()
89  * test_and_change_bit - Change a bit and return its old value
96 static inline int test_and_change_bit(int nr, volatile unsigned long *addr)  in test_and_change_bit()
102  * set_bit - Atomically set a bit in memory
107  * on non x86 architectures, so if you are writing portable code,
111  * restricted to acting on a single-word quantity.
113 static inline void set_bit(int nr, volatile unsigned long *addr)  in set_bit()
119  * clear_bit - Clears a bit in memory
124  * on non x86 architectures, so if you are writing portable code,
127 static inline void clear_bit(int nr, volatile unsigned long *addr)  in clear_bit()
133  * change_bit - Toggle a bit in memory
139  * restricted to acting on a single-word quantity.
141 static inline void change_bit(int nr, volatile unsigned long *addr)  in change_bit()
147  * test_and_set_bit_lock - Set a bit and return its old value, for lock
155 	unsigned long nr, volatile unsigned long *addr)  in test_and_set_bit_lock()
161  * clear_bit_unlock - Clear a bit in memory, for unlock
168 	unsigned long nr, volatile unsigned long *addr)  in clear_bit_unlock()
174  * __clear_bit_unlock - Clear a bit in memory, for unlock
184  * On RISC-V systems there seems to be no benefit to taking advantage of the
185  * non-atomic property here: it's a lot more instructions and we still have to
189 	unsigned long nr, volatile unsigned long *addr)  in __clear_bit_unlock()
200 #include <asm-generic/bitops/non-atomic.h>
201 #include <asm-generic/bitops/le.h>
202 #include <asm-generic/bitops/ext2-atomic.h>