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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071/* 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 __always_inline voidarch_set_bit(unsigned int nr, volatile unsigned long *p){ p += BIT_WORD(nr); raw_atomic_long_or(BIT_MASK(nr), (atomic_long_t *)p);}
static __always_inline voidarch_clear_bit(unsigned int nr, volatile unsigned long *p){ p += BIT_WORD(nr); raw_atomic_long_andnot(BIT_MASK(nr), (atomic_long_t *)p);}
static __always_inline voidarch_change_bit(unsigned int nr, volatile unsigned long *p){ p += BIT_WORD(nr); raw_atomic_long_xor(BIT_MASK(nr), (atomic_long_t *)p);}
static __always_inline intarch_test_and_set_bit(unsigned int nr, volatile unsigned long *p){ long old; unsigned long mask = BIT_MASK(nr);
p += BIT_WORD(nr); old = raw_atomic_long_fetch_or(mask, (atomic_long_t *)p); return !!(old & mask);}
static __always_inline intarch_test_and_clear_bit(unsigned int nr, volatile unsigned long *p){ long old; unsigned long mask = BIT_MASK(nr);
p += BIT_WORD(nr); old = raw_atomic_long_fetch_andnot(mask, (atomic_long_t *)p); return !!(old & mask);}
static __always_inline intarch_test_and_change_bit(unsigned int nr, volatile unsigned long *p){ long old; unsigned long mask = BIT_MASK(nr);
p += BIT_WORD(nr); old = raw_atomic_long_fetch_xor(mask, (atomic_long_t *)p); return !!(old & mask);}
#include <asm-generic/bitops/instrumented-atomic.h>
#endif /* _ASM_GENERIC_BITOPS_ATOMIC_H */