[PATCH v5 13/21] gpu: host1x: Reset max value when freeing a syncpoint

Mikko Perttunen
2021-01-11T13:02:40Z

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 --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c
index 81315cd1a3ed..9c39f5bfc70c 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);
--
2.30.0