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(v: &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(v: &t->count);
31}
32
33static inline bool __tasklet_enable(struct tasklet_struct *t)
34{
35 return atomic_dec_and_test(v: &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