/* SPDX-License-Identifier: GPL-2.0 */#ifndef _ASM_GENERIC_BITOPS_ATOMIC_H_#define _ASM_GENERIC_BITOPS_ATOMIC_H_ #include <linux/atomic.h>#include <linux/compiler.h>#include <asm/barrier.h> /* * Implementation of atomic bitops using atomic-fetch ops. * See Documentation/atomic_bitops.txt for details. */ static inline void set_bit(unsigned int nr, volatile unsigned long *p){	p += BIT_WORD(nr);	atomic_long_or(BIT_MASK(nr), (atomic_long_t *)p);} static inline void clear_bit(unsigned int nr, volatile unsigned long *p){	p += BIT_WORD(nr);	atomic_long_andnot(BIT_MASK(nr), (atomic_long_t *)p);} static inline void change_bit(unsigned int nr, volatile unsigned long *p){	p += BIT_WORD(nr);	atomic_long_xor(BIT_MASK(nr), (atomic_long_t *)p);} static inline int test_and_set_bit(unsigned int nr, volatile unsigned long *p){	long old;	unsigned long mask = BIT_MASK(nr); 	p += BIT_WORD(nr);	if (READ_ONCE(*p) & mask)		return 1; 	old = atomic_long_fetch_or(mask, (atomic_long_t *)p);	return !!(old & mask);} static inline int test_and_clear_bit(unsigned int nr, volatile unsigned long *p){	long old;	unsigned long mask = BIT_MASK(nr); 	p += BIT_WORD(nr);	if (!(READ_ONCE(*p) & mask))		return 0; 	old = atomic_long_fetch_andnot(mask, (atomic_long_t *)p);	return !!(old & mask);} static inline int test_and_change_bit(unsigned int nr, volatile unsigned long *p){	long old;	unsigned long mask = BIT_MASK(nr); 	p += BIT_WORD(nr);	old = atomic_long_fetch_xor(mask, (atomic_long_t *)p);	return !!(old & mask);} #endif /* _ASM_GENERIC_BITOPS_ATOMIC_H */