gpu: nvgpu: add trace event for channel update

Bug 200052943

Change-Id: Ied6454bbfb5df9ab29497ecbf2aac495f6d89362
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/602887
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 0d9eb318..cffac380 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -1470,6 +1470,8 @@ void gk20a_channel_update(struct channel_gk20a *c, int nr_completed)
         struct vm_gk20a *vm = c->vm;
         struct channel_gk20a_job *job, *n;
 
+        trace_gk20a_channel_update(c);
+
         wake_up(&c->submit_wq);
 
         mutex_lock(&c->submit_lock);
diff --git a/include/trace/events/gk20a.h b/include/trace/events/gk20a.h
index 84a525bd..4b3f94e7 100644
--- a/include/trace/events/gk20a.h
+++ b/include/trace/events/gk20a.h
@@ -55,6 +55,14 @@ DEFINE_EVENT(gk20a, gk20a_finalize_poweron_done,
         TP_ARGS(name)
 );
 
+TRACE_EVENT(gk20a_channel_update,
+        TP_PROTO(const void *channel),
+        TP_ARGS(channel),
+        TP_STRUCT__entry(__field(const void *, channel)),
+        TP_fast_assign(__entry->channel = channel;),
+        TP_printk("channel=%p", __entry->channel)
+);
+
 TRACE_EVENT(gk20a_push_cmdbuf,
         TP_PROTO(const char *name, u32 mem_id,
                         u32 words, u32 offset, void *cmdbuf),