drm/i915: dump refcount into framebuffer debugfs file

Useful for checking whether the new refcounting works as advertised.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index a40c674..8a11085 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1367,11 +1367,12 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
        ifbdev = dev_priv->fbdev;
        fb = to_intel_framebuffer(ifbdev->helper.fb);
 
-       seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, obj ",
+       seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
                   fb->base.width,
                   fb->base.height,
                   fb->base.depth,
-                  fb->base.bits_per_pixel);
+                  fb->base.bits_per_pixel,
+                  atomic_read(&fb->base.refcount.refcount));
        describe_obj(m, fb->obj);
        seq_printf(m, "\n");
        mutex_unlock(&dev->mode_config.mutex);
@@ -1381,11 +1382,12 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
                if (&fb->base == ifbdev->helper.fb)
                        continue;
 
-               seq_printf(m, "user size: %d x %d, depth %d, %d bpp, obj ",
+               seq_printf(m, "user size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
                           fb->base.width,
                           fb->base.height,
                           fb->base.depth,
-                          fb->base.bits_per_pixel);
+                          fb->base.bits_per_pixel,
+                          atomic_read(&fb->base.refcount.refcount));
                describe_obj(m, fb->obj);
                seq_printf(m, "\n");
        }