1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef _BLOCK_BLK_PM_H_
4#define _BLOCK_BLK_PM_H_
5
6#include <linux/pm_runtime.h>
7
8#ifdef CONFIG_PM
9static inline void blk_pm_request_resume(struct request_queue *q)
10{
11 if (q->dev && (q->rpm_status == RPM_SUSPENDED ||
12 q->rpm_status == RPM_SUSPENDING))
13 pm_request_resume(q->dev);
14}
15
16static inline void blk_pm_mark_last_busy(struct request *rq)
17{
18 if (rq->q->dev && !(rq->rq_flags & RQF_PM))
19 pm_runtime_mark_last_busy(rq->q->dev);
20}
21
22static inline void blk_pm_requeue_request(struct request *rq)
23{
24 lockdep_assert_held(&rq->q->queue_lock);
25
26 if (rq->q->dev && !(rq->rq_flags & RQF_PM))
27 rq->q->nr_pending--;
28}
29
30static inline void blk_pm_add_request(struct request_queue *q,
31 struct request *rq)
32{
33 lockdep_assert_held(&q->queue_lock);
34
35 if (q->dev && !(rq->rq_flags & RQF_PM))
36 q->nr_pending++;
37}
38
39static inline void blk_pm_put_request(struct request *rq)
40{
41 lockdep_assert_held(&rq->q->queue_lock);
42
43 if (rq->q->dev && !(rq->rq_flags & RQF_PM))
44 --rq->q->nr_pending;
45}
46#else
47static inline void blk_pm_request_resume(struct request_queue *q)
48{
49}
50
51static inline void blk_pm_mark_last_busy(struct request *rq)
52{
53}
54
55static inline void blk_pm_requeue_request(struct request *rq)
56{
57}
58
59static inline void blk_pm_add_request(struct request_queue *q,
60 struct request *rq)
61{
62}
63
64static inline void blk_pm_put_request(struct request *rq)
65{
66}
67#endif
68
69#endif /* _BLOCK_BLK_PM_H_ */
70