drm/i915: Print obj->frontbuffer_bits in debugfs output

Can be useful to figure out imbalances and bugs in the frontbuffer
tracking.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 76c2572872f6..6b7b32baefb1 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -170,6 +170,8 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
         }
         if (obj->ring != NULL)
                 seq_printf(m, " (%s)", obj->ring->name);
+        if (obj->frontbuffer_bits)
+                seq_printf(m, " (frontbuffer: 0x%03x)", obj->frontbuffer_bits);
 }
 
 static void describe_ctx(struct seq_file *m, struct intel_context *ctx)