1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright �� 2022 Intel Corporation
4 */
5
6#ifndef __I915_TASKLET_H__
7#define __I915_TASKLET_H__
8
9#include <linux/interrupt.h>
10
11static inline void tasklet_lock(struct tasklet_struct *t)
12{
13	while (!tasklet_trylock(t))
14		cpu_relax();
15}
16
17static inline bool tasklet_is_locked(const struct tasklet_struct *t)
18{
19	return test_bit(TASKLET_STATE_RUN, &t->state);
20}
21
22static inline void __tasklet_disable_sync_once(struct tasklet_struct *t)
23{
24	if (!atomic_fetch_inc(&t->count))
25		tasklet_unlock_spin_wait(t);
26}
27
28static inline bool __tasklet_is_enabled(const struct tasklet_struct *t)
29{
30	return !atomic_read(&t->count);
31}
32
33static inline bool __tasklet_enable(struct tasklet_struct *t)
34{
35	return atomic_dec_and_test(&t->count);
36}
37
38static inline bool __tasklet_is_scheduled(struct tasklet_struct *t)
39{
40	return test_bit(TASKLET_STATE_SCHED, &t->state);
41}
42
43#endif /* __I915_TASKLET_H__ */
44