1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 3201986bf25e..54bf54706d1d 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3458,12 +3458,13 @@ static void gen8_irq_reset(struct drm_device *dev)
 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv)
 {
         unsigned long irqflags;
+        uint32_t extra_ier = GEN8_PIPE_VBLANK | GEN8_PIPE_FIFO_UNDERRUN;
 
         spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
         GEN8_IRQ_INIT_NDX(DE_PIPE, PIPE_B, dev_priv->de_irq_mask[PIPE_B],
-                          ~dev_priv->de_irq_mask[PIPE_B]);
+                          ~dev_priv->de_irq_mask[PIPE_B] | extra_ier);
         GEN8_IRQ_INIT_NDX(DE_PIPE, PIPE_C, dev_priv->de_irq_mask[PIPE_C],
-                          ~dev_priv->de_irq_mask[PIPE_C]);
+                          ~dev_priv->de_irq_mask[PIPE_C] | extra_ier);
         spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
 }