diff mbox series

[v3,13/20] gpu: host1x: Reset max value when freeing a syncpoint

Message ID 20201007171238.1795964-14-mperttunen@nvidia.com (mailing list archive)
State New, archived
Headers show
Series Host1x/TegraDRM UAPI | expand

Commit Message

Mikko Perttunen Oct. 7, 2020, 5:12 p.m. UTC 
With job recovery becoming optional, syncpoints may have a mismatch
between their value and max value when freed. As such, when freeing,
set the max value to the current value of the syncpoint so that it
is in a sane state for the next user.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
v3:
* Use host1x_syncpt_read instead of read_min to ensure syncpoint
  value is current.
---
 drivers/gpu/host1x/syncpt.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c
index 8d658e5f7db2..99d31932eb34 100644
--- a/drivers/gpu/host1x/syncpt.c
+++ b/drivers/gpu/host1x/syncpt.c
@@ -385,6 +385,7 @@  static void syncpt_release(struct kref *ref)
 {
 	struct host1x_syncpt *sp = container_of(ref, struct host1x_syncpt, ref);
 
+	atomic_set(&sp->max_val, host1x_syncpt_read(sp));
 	sp->locked = false;
 
 	mutex_lock(&sp->host->syncpt_mutex);