We track the plane state's framebuffer and VMA separately, giving us an
opportunity to detect if that pair becomes inconsistent when we cleanup
after the atomic modeset.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 28159ce7bff7..63d346375a7b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14313,6 +14313,8 @@ intel_cleanup_plane_fb(struct drm_plane *plane,
/* Should only be called after a successful intel_prepare_plane_fb()! */
vma = fetch_and_zero(&to_intel_plane_state(old_state)->vma);
if (vma) {
+ WARN_ON(vma->obj != intel_fb_obj(old_state->fb));
+
mutex_lock(&plane->dev->struct_mutex);
intel_unpin_fb_vma(vma);
mutex_unlock(&plane->dev->struct_mutex);
--
2.11.0
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