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

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

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210209021918.16234-3-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Ville Syrjälä 2021-02-09 04:19:18 +02:00
parent 553c23bdb4
commit 5ffb9afaa9
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/display/intel_frontbuffer.c
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@ -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;