[PATCH v3 4/8] drm/amdgpu: add a amdgpu_bo_fill trace event

[Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>]

Useful to identify why sdma jobs are submitted.

v2: moved from amdgpu_bo_create to amdgpu_bo_fill

Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 18 ++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c   |  2 ++
 2 files changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index f539b1d00234..0e47cbe7e0a9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -514,6 +514,24 @@ TRACE_EVENT(amdgpu_bo_move,
 			__entry->new_placement, __entry->bo_size)
 );
 
+TRACE_EVENT(amdgpu_bo_fill,
+	    TP_PROTO(struct amdgpu_bo *bo, uint32_t value),
+	    TP_ARGS(bo, value),
+	    TP_STRUCT__entry(
+			__field(struct amdgpu_bo *, bo)
+			__field(u64, bo_size)
+			__field(u32, value)
+			),
+
+	    TP_fast_assign(
+			__entry->bo      = bo;
+			__entry->bo_size = amdgpu_bo_size(bo);
+			__entry->value   = value;
+			),
+	    TP_printk("bo=%p, size=%lld, value=0x%08x",
+			__entry->bo, __entry->bo_size, __entry->value)
+);
+
 TRACE_EVENT(amdgpu_ib_pipe_sync,
 	    TP_PROTO(struct amdgpu_job *sched_job, struct dma_fence *fence),
 	    TP_ARGS(sched_job, fence),
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 8722beba494e..7d0b2c1191f8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -2231,6 +2231,8 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
 		return -EINVAL;
 	}
 
+	trace_amdgpu_bo_fill(bo, src_data);
+
 	amdgpu_res_first(bo->tbo.resource, 0, amdgpu_bo_size(bo), &dst);
 
 	mutex_lock(&adev->mman.gtt_window_lock);
-- 
2.40.1