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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_IRQ_WORK_H#define _LINUX_IRQ_WORK_H
#include <linux/irq_work_types.h>#include <linux/rcuwait.h>#include <linux/smp_types.h>
/* * An entry can be in one of four states: * * free NULL, 0 -> {claimed} : free to be used * claimed NULL, 3 -> {pending} : claimed to be enqueued * pending next, 3 -> {busy} : queued, pending callback * busy NULL, 2 -> {free, claimed} : callback in progress, can be claimed */
#define __IRQ_WORK_INIT(_func, _flags) (struct irq_work){ \ .node = { .u_flags = (_flags), }, \ .func = (_func), \ .irqwait = __RCUWAIT_INITIALIZER(irqwait), \}
#define IRQ_WORK_INIT(_func) __IRQ_WORK_INIT(_func, 0)#define IRQ_WORK_INIT_LAZY(_func) __IRQ_WORK_INIT(_func, IRQ_WORK_LAZY)#define IRQ_WORK_INIT_HARD(_func) __IRQ_WORK_INIT(_func, IRQ_WORK_HARD_IRQ)
#define DEFINE_IRQ_WORK(name, _f) \ struct irq_work name = IRQ_WORK_INIT(_f)
static inlinevoid init_irq_work(struct irq_work *work, void (*func)(struct irq_work *)){ *work = IRQ_WORK_INIT(func);}
static inline bool irq_work_is_pending(struct irq_work *work){ return atomic_read(&work->node.a_flags) & IRQ_WORK_PENDING;}
static inline bool irq_work_is_busy(struct irq_work *work){ return atomic_read(&work->node.a_flags) & IRQ_WORK_BUSY;}
static inline bool irq_work_is_hard(struct irq_work *work){ return atomic_read(&work->node.a_flags) & IRQ_WORK_HARD_IRQ;}
bool irq_work_queue(struct irq_work *work);bool irq_work_queue_on(struct irq_work *work, int cpu);
void irq_work_tick(void);void irq_work_sync(struct irq_work *work);
#ifdef CONFIG_IRQ_WORK#include <asm/irq_work.h>
void irq_work_run(void);bool irq_work_needs_cpu(void);void irq_work_single(void *arg);
void arch_irq_work_raise(void);
#elsestatic inline bool irq_work_needs_cpu(void) { return false; }static inline void irq_work_run(void) { }static inline void irq_work_single(void *arg) { }#endif
#endif /* _LINUX_IRQ_WORK_H */