[PATCH v2 4/6] drm/amdgpu: add BO clear event

[Pierre-Eric Pelloux-Prayer]

Useful to identify why sdma jobs are submitted.

Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c |  2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h  | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 425cebcc5cbf..7219f329d6f0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -631,6 +631,8 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
 	    bo->tbo.resource->mem_type == TTM_PL_VRAM) {
 		struct dma_fence *fence;
 
+		trace_amdgpu_bo_clear(bo);
+
 		r = amdgpu_fill_buffer(bo, 0, bo->tbo.base.resv, &fence, true);
 		if (unlikely(r))
 			goto fail_unreserve;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index f539b1d00234..e8ea1cfe7027 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -514,6 +514,22 @@ TRACE_EVENT(amdgpu_bo_move,
 			__entry->new_placement, __entry->bo_size)
 );
 
+TRACE_EVENT(amdgpu_bo_clear,
+	    TP_PROTO(struct amdgpu_bo *bo),
+	    TP_ARGS(bo),
+	    TP_STRUCT__entry(
+			__field(struct amdgpu_bo *, bo)
+			__field(u64, bo_size)
+			),
+
+	    TP_fast_assign(
+			__entry->bo      = bo;
+			__entry->bo_size = amdgpu_bo_size(bo);
+			),
+	    TP_printk("bo=%p, size=%lld",
+			__entry->bo, __entry->bo_size)
+);
+
 TRACE_EVENT(amdgpu_ib_pipe_sync,
 	    TP_PROTO(struct amdgpu_job *sched_job, struct dma_fence *fence),
 	    TP_ARGS(sched_job, fence),
-- 
2.40.1