Merge branches 'clk-of-refcount', 'clk-mmio-fixed-clock', 'clk-remove-clps', 'clk...
[sfrench/cifs-2.6.git] / block / blk-pm.h
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
9 static 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
16 static 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
22 static 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
30 static 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
39 static 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
47 static inline void blk_pm_request_resume(struct request_queue *q)
48 {
49 }
50
51 static inline void blk_pm_mark_last_busy(struct request *rq)
52 {
53 }
54
55 static inline void blk_pm_requeue_request(struct request *rq)
56 {
57 }
58
59 static inline void blk_pm_add_request(struct request_queue *q,
60                                       struct request *rq)
61 {
62 }
63
64 static inline void blk_pm_put_request(struct request *rq)
65 {
66 }
67 #endif
68
69 #endif /* _BLOCK_BLK_PM_H_ */