Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
3#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
4
5#include <asm/types.h>
6#include <asm/bitsperlong.h>
7
8static inline void set_bit(int nr, unsigned long *addr)
9{
10 addr[nr / __BITS_PER_LONG] |= 1UL << (nr % __BITS_PER_LONG);
11}
12
13static inline void clear_bit(int nr, unsigned long *addr)
14{
15 addr[nr / __BITS_PER_LONG] &= ~(1UL << (nr % __BITS_PER_LONG));
16}
17
18static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
19{
20 return ((1UL << (nr % __BITS_PER_LONG)) &
21 (((unsigned long *)addr)[nr / __BITS_PER_LONG])) != 0;
22}
23
24#define __set_bit(nr, addr) set_bit(nr, addr)
25#define __clear_bit(nr, addr) clear_bit(nr, addr)
26
27#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ */