gpu: nvgpu: print process name on submit failure

Print process name if we fail submit due to gk20a_busy()
failure

This is helpful in debugging and to know the process name
submitting jobs to nvgpu after system shutdown was
already triggered

Bug 200262275

Change-Id: I34d8c07fc96fd5556afa982bfd56f7f3964449d0
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1284113
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 6cbbdeb0..d5901354 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -2822,7 +2822,8 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
                 /* gk20a_channel_update releases this ref. */
                 err = gk20a_busy(g->dev);
                 if (err) {
-                        gk20a_err(d, "failed to host gk20a to submit gpfifo");
+                        gk20a_err(d, "failed to host gk20a to submit gpfifo, process %s",
+                                current->comm);
                         return err;
                 }