[PATCH] xe/xe_bo_move: Enhance xe_bo_move trace

[priyanka.dandamudi at intel.com]

From: Priyanka Dandamudi <priyanka.dandamudi at intel.com>

Enhanced xe_bo_move trace to be more readable.
It will help to show the migration details.
Src and dst details.

Cc: Oak Zeng <oak.zeng at intel.com>
Cc: Kempczynski Zbigniew <Zbigniew.Kempczynski at intel.com>
Cc: Matthew Brost <matthew.brost at intel.com>
Cc: Brian Welty <brian.welty at intel.com>
Signed-off-by: Priyanka Dandamudi <priyanka.dandamudi at intel.com>
---
 drivers/gpu/drm/xe/xe_bo.c    | 12 ++++++++++--
 drivers/gpu/drm/xe/xe_trace.h | 22 +++++++++++++++++++---
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index 8e4a3b1f6b93..3fa7ca99e85b 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -613,6 +613,14 @@ static int xe_bo_move(struct ttm_buffer_object *ttm_bo, bool evict,
 		      struct ttm_resource *new_mem,
 		      struct ttm_place *hop)
 {
+	static const char *const mem_type_to_name[TTM_NUM_MEM_TYPES]  = {
+		[XE_PL_SYSTEM] = "system",
+		[XE_PL_TT] = "gtt",
+		[XE_PL_VRAM0] = "vram0",
+		[XE_PL_VRAM1] = "vram1",
+		[4 ... 6] = NULL,
+		[XE_PL_STOLEN] = "stolen"
+	};
 	struct xe_device *xe = ttm_to_xe_device(ttm_bo->bdev);
 	struct xe_bo *bo = ttm_to_xe_bo(ttm_bo);
 	struct ttm_resource *old_mem = ttm_bo->resource;
@@ -713,8 +721,8 @@ static int xe_bo_move(struct ttm_buffer_object *ttm_bo, bool evict,
 		migrate = xe->tiles[0].migrate;
 
 	xe_assert(xe, migrate);
-
-	trace_xe_bo_move(bo);
+	trace_xe_bo_move(bo, mem_type_to_name[new_mem->mem_type],
+			 mem_type_to_name[old_mem_type]);
 	xe_device_mem_access_get(xe);
 
 	if (xe_bo_is_pinned(bo) && !xe_bo_is_user(bo)) {
diff --git a/drivers/gpu/drm/xe/xe_trace.h b/drivers/gpu/drm/xe/xe_trace.h
index 95163c303f3e..bfa7b2391378 100644
--- a/drivers/gpu/drm/xe/xe_trace.h
+++ b/drivers/gpu/drm/xe/xe_trace.h
@@ -100,9 +100,25 @@ DEFINE_EVENT(xe_bo, xe_bo_cpu_fault,
 	     TP_ARGS(bo)
 );
 
-DEFINE_EVENT(xe_bo, xe_bo_move,
-	     TP_PROTO(struct xe_bo *bo),
-	     TP_ARGS(bo)
+TRACE_EVENT(xe_bo_move,
+	    TP_PROTO(struct xe_bo *bo, const char *new_placement, const char *old_placement),
+	    TP_ARGS(bo, new_placement, old_placement),
+	    TP_STRUCT__entry(
+		     __field(struct xe_bo *, bo)
+		     __field(size_t, size)
+		     __array(char, new_placement, 16)
+		     __array(char, old_placement, 16)
+			),
+
+	    TP_fast_assign(
+		   __entry->bo      = bo;
+		   __entry->size = bo->size;
+		   strscpy(__entry->new_placement, new_placement, 16);
+		   strscpy(__entry->old_placement, old_placement, 16)
+		   ),
+	    TP_printk("migrate object %p [size %zu] from %s to %s",
+		      __entry->bo, __entry->size, __entry->old_placement,
+		      __entry->new_placement)
 );
 
 DECLARE_EVENT_CLASS(xe_exec_queue,
-- 
2.25.1