1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
index d87b8661..bf467210 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
@@ -646,7 +646,18 @@ static int gk20a_channel_semaphore_incr_user(
 
 static void gk20a_channel_semaphore_set_min_eq_max(struct gk20a_channel_sync *s)
 {
-        /* Nothing to do. */
+        struct gk20a_channel_semaphore *sp =
+                container_of(s, struct gk20a_channel_semaphore, ops);
+        struct channel_gk20a *c = sp->c;
+        bool updated;
+
+        if (!c->hw_sema)
+                return;
+
+        updated = nvgpu_semaphore_reset(c->hw_sema);
+
+        if (updated)
+                nvgpu_cond_broadcast_interruptible(&c->semaphore_wq);
 }
 
 static void gk20a_channel_semaphore_set_safe_state(struct gk20a_channel_sync *s)