gpu: nvgpu: restart timer instead of cancel

In gk20a_fifo_handle_sched_error(), we currently cancel
the timeout on all the channels
But this could cause us to miss one of stuck channel

hence, instead of cancelling, restart the timeout of channel
on which it is already active

Bug 200133289

Change-Id: I40e7e0e5394911fc110ab6fde39592b885dfaf7d
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/816133
Reviewed-by: Ishan Mittal <imittal@nvidia.com>
Tested-by: Ishan Mittal <imittal@nvidia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
index ad7162fc..a035cd87 100644
--- a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
@@ -1450,7 +1450,7 @@ static bool gk20a_fifo_handle_sched_error(struct gk20a *g)
                 struct channel_gk20a *ch = &f->channel[id];
 
                 if (is_tsg) {
-                        gk20a_channel_timeout_stop_all_channels(g);
+                        gk20a_channel_timeout_restart_all_channels(g);
                         gk20a_fifo_recover(g, BIT(engine_id), id, true,
                                         true, true);
                         ret = true;
@@ -1472,7 +1472,7 @@ static bool gk20a_fifo_handle_sched_error(struct gk20a *g)
                          * Cancel all channels' timeout since SCHED error might
                          * trigger multiple watchdogs at a time
                          */
-                        gk20a_channel_timeout_stop_all_channels(g);
+                        gk20a_channel_timeout_restart_all_channels(g);
                         gk20a_fifo_recover(g, BIT(engine_id), id, false,
                                 true, ch->timeout_debug_dump);
                         ret = true;