gpu: nvgpu: Skip ctxsw trace init if not supported

Skip initialization of ctxsw tracing if it's not supported for that
chip.

Change-Id: I5197295c2a5d0f039347e1784137b3fd99894dc7
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1143837
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/ctxsw_trace_gk20a.c b/drivers/gpu/nvgpu/gk20a/ctxsw_trace_gk20a.c
index 6a61d744..04109df0 100644
--- a/drivers/gpu/nvgpu/gk20a/ctxsw_trace_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/ctxsw_trace_gk20a.c
@@ -490,6 +490,10 @@ int gk20a_ctxsw_trace_init(struct gk20a *g)
 
         gk20a_dbg(gpu_dbg_fn|gpu_dbg_ctxsw, "g=%p trace=%p", g, trace);
 
+        /* if tracing is not supported, skip this */
+        if (!g->ops.fecs_trace.init)
+                return 0;
+
         if (likely(trace))
                 return 0;