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_ */ 70