| Bart Van Assche | bca6b06 | 2018-09-26 14:01:03 -0700 | [diff] [blame] | 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 |
| Alan Stern | 52abca6 | 2020-12-08 21:29:51 -0800 | [diff] [blame] | 9 | static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) |
| Bart Van Assche | 154b00d | 2018-09-26 14:01:05 -0700 | [diff] [blame] | 10 | { |
| Alan Stern | 52abca6 | 2020-12-08 21:29:51 -0800 | [diff] [blame] | 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; |
| Bart Van Assche | 154b00d | 2018-09-26 14:01:05 -0700 | [diff] [blame] | 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 | } |
| Bart Van Assche | bca6b06 | 2018-09-26 14:01:03 -0700 | [diff] [blame] | 24 | #else |
| Alan Stern | 52abca6 | 2020-12-08 21:29:51 -0800 | [diff] [blame] | 25 | static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) |
| Bart Van Assche | 154b00d | 2018-09-26 14:01:05 -0700 | [diff] [blame] | 26 | { |
| Alan Stern | 52abca6 | 2020-12-08 21:29:51 -0800 | [diff] [blame] | 27 | return 1; |
| Bart Van Assche | 154b00d | 2018-09-26 14:01:05 -0700 | [diff] [blame] | 28 | } |
| 29 | |
| 30 | static inline void blk_pm_mark_last_busy(struct request *rq) |
| 31 | { |
| 32 | } |
| Bart Van Assche | bca6b06 | 2018-09-26 14:01:03 -0700 | [diff] [blame] | 33 | #endif |
| 34 | |
| 35 | #endif /* _BLOCK_BLK_PM_H_ */ |