Commit 5ffb9afa authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915: Warn when releasing a frontbuffer while in use 



Let's scream if we are about to release a frontbuffer which
is still in use.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210209021918.16234-3-ville.syrjala@linux.intel.com


Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 553c23bd

drivers/gpu/drm/i915/display/intel_frontbuffer.c

+2 −0
Original line number Diff line number Diff line
@@ -224,6 +224,8 @@ static void frontbuffer_release(struct kref *ref) 
	struct drm_i915_gem_object *obj = front->obj;

	struct i915_vma *vma;



	drm_WARN_ON(obj->base.dev, atomic_read(&front->bits));



	spin_lock(&obj->vma.lock);

	for_each_ggtt_vma(vma, obj)

		vma->display_alignment = I915_GTT_MIN_ALIGNMENT;