1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */ 2 2 3 #ifndef _BLOCK_BLK_PM_H_ 3 #ifndef _BLOCK_BLK_PM_H_ 4 #define _BLOCK_BLK_PM_H_ 4 #define _BLOCK_BLK_PM_H_ 5 5 6 #include <linux/pm_runtime.h> 6 #include <linux/pm_runtime.h> 7 7 8 #ifdef CONFIG_PM 8 #ifdef CONFIG_PM 9 static inline int blk_pm_resume_queue(const bo 9 static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) 10 { 10 { 11 if (!q->dev || !blk_queue_pm_only(q)) 11 if (!q->dev || !blk_queue_pm_only(q)) 12 return 1; /* Nothing to 12 return 1; /* Nothing to do */ 13 if (pm && q->rpm_status != RPM_SUSPEND 13 if (pm && q->rpm_status != RPM_SUSPENDED) 14 return 1; /* Request all 14 return 1; /* Request allowed */ 15 pm_request_resume(q->dev); 15 pm_request_resume(q->dev); 16 return 0; 16 return 0; 17 } 17 } 18 18 19 static inline void blk_pm_mark_last_busy(struc 19 static inline void blk_pm_mark_last_busy(struct request *rq) 20 { 20 { 21 if (rq->q->dev && !(rq->rq_flags & RQF 21 if (rq->q->dev && !(rq->rq_flags & RQF_PM)) 22 pm_runtime_mark_last_busy(rq-> 22 pm_runtime_mark_last_busy(rq->q->dev); 23 } 23 } >> 24 >> 25 static inline void blk_pm_requeue_request(struct request *rq) >> 26 { >> 27 lockdep_assert_held(&rq->q->queue_lock); >> 28 >> 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 { >> 36 lockdep_assert_held(&q->queue_lock); >> 37 >> 38 if (q->dev && !(rq->rq_flags & RQF_PM)) >> 39 q->nr_pending++; >> 40 } >> 41 >> 42 static inline void blk_pm_put_request(struct request *rq) >> 43 { >> 44 lockdep_assert_held(&rq->q->queue_lock); >> 45 >> 46 if (rq->q->dev && !(rq->rq_flags & RQF_PM)) >> 47 --rq->q->nr_pending; >> 48 } 24 #else 49 #else 25 static inline int blk_pm_resume_queue(const bo 50 static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) 26 { 51 { 27 return 1; 52 return 1; 28 } 53 } 29 54 30 static inline void blk_pm_mark_last_busy(struc 55 static inline void blk_pm_mark_last_busy(struct request *rq) >> 56 { >> 57 } >> 58 >> 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) 31 { 69 { 32 } 70 } 33 #endif 71 #endif 34 72 35 #endif /* _BLOCK_BLK_PM_H_ */ 73 #endif /* _BLOCK_BLK_PM_H_ */ 36 74
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