projects / thirdparty / kernel / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| bca6b067 BVA |
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 | |
| 52abca64 | 9 | static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) |
| 154b00d5 | 10 | { |
| 52abca64 AS |
11 | if (!q->dev || !blk_queue_pm_only(q)) |
| 12 | return 1; /* Nothing to do */ | |
| 13 | if (pm && q->rpm_status != RPM_SUSPENDED) | |
| 14 | return 1; /* Request allowed */ | |
| 15 | pm_request_resume(q->dev); | |
| 16 | return 0; | |
| 154b00d5 BVA |
17 | } |
| 18 | ||
| 19 | static inline void blk_pm_mark_last_busy(struct request *rq) | |
| 20 | { | |
| 21 | if (rq->q->dev && !(rq->rq_flags & RQF_PM)) | |
| 22 | pm_runtime_mark_last_busy(rq->q->dev); | |
| 23 | } | |
| 24 | ||
| bca6b067 BVA |
25 | static inline void blk_pm_requeue_request(struct request *rq) |
| 26 | { | |
| 0d945c1f | 27 | lockdep_assert_held(&rq->q->queue_lock); |
| 154b00d5 | 28 | |
| bca6b067 BVA |
29 | if (rq->q->dev && !(rq->rq_flags & RQF_PM)) |
| 30 | rq->q->nr_pending--; | |
| 31 | } | |
| 32 | ||
| 33 | static inline void blk_pm_add_request(struct request_queue *q, | |
| 34 | struct request *rq) | |
| 35 | { | |
| 0d945c1f | 36 | lockdep_assert_held(&q->queue_lock); |
| 154b00d5 BVA |
37 | |
| 38 | if (q->dev && !(rq->rq_flags & RQF_PM)) | |
| 39 | q->nr_pending++; | |
| bca6b067 BVA |
40 | } |
| 41 | ||
| 42 | static inline void blk_pm_put_request(struct request *rq) | |
| 43 | { | |
| 0d945c1f | 44 | lockdep_assert_held(&rq->q->queue_lock); |
| 154b00d5 BVA |
45 | |
| 46 | if (rq->q->dev && !(rq->rq_flags & RQF_PM)) | |
| 47 | --rq->q->nr_pending; | |
| bca6b067 BVA |
48 | } |
| 49 | #else | |
| 52abca64 | 50 | static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) |
| 154b00d5 | 51 | { |
| 52abca64 | 52 | return 1; |
| 154b00d5 BVA |
53 | } |
| 54 | ||
| 55 | static inline void blk_pm_mark_last_busy(struct request *rq) | |
| 56 | { | |
| 57 | } | |
| 58 | ||
| bca6b067 BVA |
59 | static inline void blk_pm_requeue_request(struct request *rq) |
| 60 | { | |
| 61 | } | |
| 62 | ||
| 63 | static inline void blk_pm_add_request(struct request_queue *q, | |
| 64 | struct request *rq) | |
| 65 | { | |
| 66 | } | |
| 67 | ||
| 68 | static inline void blk_pm_put_request(struct request *rq) | |
| 69 | { | |
| 70 | } | |
| 71 | #endif | |
| 72 | ||
| 73 | #endif /* _BLOCK_BLK_PM_H_ */ |