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 int blk_pm_resume_queue(const bool pm, struct request_queue *q) 10 { 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; 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 #else 25 static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) 26 { 27 return 1; 28 } 29 30 static inline void blk_pm_mark_last_busy(struct request *rq) 31 { 32 } 33 #endif 34 35 #endif /* _BLOCK_BLK_PM_H_ */ 36