1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
index 9c64675f..75ff9525 100644
--- a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
@@ -808,13 +808,18 @@ int gv11b_fifo_enable_tsg(struct tsg_gk20a *tsg)
 {
         struct gk20a *g = tsg->g;
         struct channel_gk20a *ch;
+        struct channel_gk20a *last_ch = NULL;
 
         nvgpu_rwsem_down_read(&tsg->ch_list_lock);
         nvgpu_list_for_each_entry(ch, &tsg->ch_list, channel_gk20a, ch_entry) {
                 g->ops.fifo.enable_channel(ch);
+                last_ch = ch;
         }
         nvgpu_rwsem_up_read(&tsg->ch_list_lock);
 
+        if (last_ch)
+                g->ops.fifo.ring_channel_doorbell(last_ch);
+
         return 0;
 }