summaryrefslogtreecommitdiffstats
path: root/block/blk-pm.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /block/blk-pm.h
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'block/blk-pm.h')
-rw-r--r--block/blk-pm.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/block/blk-pm.h b/block/blk-pm.h
new file mode 100644
index 000000000..a2283cc9f
--- /dev/null
+++ b/block/blk-pm.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _BLOCK_BLK_PM_H_
+#define _BLOCK_BLK_PM_H_
+
+#include <linux/pm_runtime.h>
+
+#ifdef CONFIG_PM
+static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q)
+{
+ if (!q->dev || !blk_queue_pm_only(q))
+ return 1; /* Nothing to do */
+ if (pm && q->rpm_status != RPM_SUSPENDED)
+ return 1; /* Request allowed */
+ pm_request_resume(q->dev);
+ return 0;
+}
+
+static inline void blk_pm_mark_last_busy(struct request *rq)
+{
+ if (rq->q->dev && !(rq->rq_flags & RQF_PM))
+ pm_runtime_mark_last_busy(rq->q->dev);
+}
+
+static inline void blk_pm_requeue_request(struct request *rq)
+{
+ lockdep_assert_held(&rq->q->queue_lock);
+
+ if (rq->q->dev && !(rq->rq_flags & RQF_PM))
+ rq->q->nr_pending--;
+}
+
+static inline void blk_pm_add_request(struct request_queue *q,
+ struct request *rq)
+{
+ lockdep_assert_held(&q->queue_lock);
+
+ if (q->dev && !(rq->rq_flags & RQF_PM))
+ q->nr_pending++;
+}
+
+static inline void blk_pm_put_request(struct request *rq)
+{
+ lockdep_assert_held(&rq->q->queue_lock);
+
+ if (rq->q->dev && !(rq->rq_flags & RQF_PM))
+ --rq->q->nr_pending;
+}
+#else
+static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q)
+{
+ return 1;
+}
+
+static inline void blk_pm_mark_last_busy(struct request *rq)
+{
+}
+
+static inline void blk_pm_requeue_request(struct request *rq)
+{
+}
+
+static inline void blk_pm_add_request(struct request_queue *q,
+ struct request *rq)
+{
+}
+
+static inline void blk_pm_put_request(struct request *rq)
+{
+}
+#endif
+
+#endif /* _BLOCK_BLK_PM_H_ */