1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index cc3bbbd2..b846054d 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -2628,6 +2628,15 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
                         !skip_buffer_refcounting;
 
         if (need_job_tracking) {
+                /*
+                 * If the submit is to have deterministic latency and
+                 * job tracking is required, the channel must have
+                 * pre-allocated resources. Otherwise, we fail the submit here
+                 */
+                if ((flags & NVGPU_SUBMIT_GPFIFO_FLAGS_DETERMINISTIC) &&
+                                !channel_gk20a_is_prealloc_enabled(c))
+                        return -EINVAL;
+
                 /* gk20a_channel_update releases this ref. */
                 err = gk20a_busy(g->dev);
                 if (err) {