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
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.