[PATCH] drm/amdgpu: Print caller in amdgpu_userq_state_changed tracepoint

Since `amdgpu_userq_state_changed()` is invoked across multiple state
transition paths in the userq lifecycle (e.g., creation, eviction, restore,
and destroy), logging the caller makes it significantly easier to trace
the exact call sequence when debugging ftrace outputs.

Signed-off-by: Prike Liang <[email protected]>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index 5324030a13f5..569e1e38704c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -721,15 +721,18 @@ TRACE_EVENT(amdgpu_userq_state_changed,
 			     __field(u64, client_id)
 			     __field(u32, queue_type)
 			     __field(u32, to)
+			     __field(void *, caller)
 			     ),
 	    TP_fast_assign(
 			   __entry->doorbell_index = queue->doorbell_index;
 			   __entry->queue_type = queue->queue_type;
 			   __entry->client_id = queue->userq_mgr->file->client_id;
 			   __entry->to = new_state;
+			   __entry->caller = (void *)_RET_IP_;
 			   ),
-	    TP_printk("client_id=%llu, type=%u, doorbell=%llu, to=%d",
-		      __entry->client_id, __entry->queue_type, __entry->doorbell_index, __entry->to)
+	    TP_printk("client_id=%llu, type=%u, doorbell=%llu, to=%d caller:%pS",
+		      __entry->client_id, __entry->queue_type, __entry->doorbell_index,
+		      __entry->to, __entry->caller)
 );
 
 #undef AMDGPU_JOB_GET_TIMELINE_NAME
-- 
2.34.1