| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | |
| 8 | static inline void set_bit(int nr, unsigned long *addr) |
| 9 | { |
| 10 | addr[nr / __BITS_PER_LONG] |= 1UL << (nr % __BITS_PER_LONG); |
| 11 | } |
| 12 | |
| 13 | static inline void clear_bit(int nr, unsigned long *addr) |
| 14 | { |
| 15 | addr[nr / __BITS_PER_LONG] &= ~(1UL << (nr % __BITS_PER_LONG)); |
| 16 | } |
| 17 | |
| 18 | static __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_ */ |