gpu: nvgpu: add API to print process name

Add an OS-abstracted API for printing the name of the current process
into a log message and convert the single occurrence of current->comm in
submit path power failure to use it.

Jira NVGPU-705

Change-Id: I1a509dcc5aecc3c89ce4582733888081b3e38f1f
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1749833
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/posix/nvgpu.c b/drivers/gpu/nvgpu/common/posix/nvgpu.c
index 6f2a5fe9..a275f2de 100644
--- a/drivers/gpu/nvgpu/common/posix/nvgpu.c
+++ b/drivers/gpu/nvgpu/common/posix/nvgpu.c
@@ -67,6 +67,13 @@ int nvgpu_current_tid(struct gk20a *g)
         return (int)pthread_self();
 }
 
+void __nvgpu_print_current(struct gk20a *g, const char *func_name, int line,
+                void *ctx, enum nvgpu_log_type type)
+{
+        __nvgpu_log_msg(g, func_name, line, type,
+                        "Current process: (nvgpu userspace)");
+}
+
 /*
  * Somewhat meaningless in userspace...
  */