diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
index 9836c705a952..b79ecc4a7cc4 100644
--- a/drivers/gpu/drm/radeon/radeon_irq.c
+++ b/drivers/gpu/drm/radeon/radeon_irq.c
@@ -188,6 +188,9 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
 	u32 stat;
 	u32 r500_disp_int;
 
+	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+		return IRQ_NONE;
+
 	/* Only consider the bits we're interested in - others could be used
 	 * outside the DRM
 	 */
@@ -286,6 +289,9 @@ int radeon_irq_emit(struct drm_device *dev, void *data, struct drm_file *file_pr
 	drm_radeon_irq_emit_t *emit = data;
 	int result;
 
+	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+		return -EINVAL;
+
 	LOCK_TEST_WITH_RETURN(dev, file_priv);
 
 	if (!dev_priv) {
@@ -315,6 +321,9 @@ int radeon_irq_wait(struct drm_device *dev, void *data, struct drm_file *file_pr
 		return -EINVAL;
 	}
 
+	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+		return -EINVAL;
+
 	return radeon_wait_irq(dev, irqwait->irq_seq);
 }
 
@@ -326,6 +335,9 @@ void radeon_driver_irq_preinstall(struct drm_device * dev)
 	    (drm_radeon_private_t *) dev->dev_private;
 	u32 dummy;
 
+	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+		return;
+
 	/* Disable *all* interrupts */
 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
 		RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
@@ -345,6 +357,9 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
 
 	dev->max_vblank_count = 0x001fffff;
 
+	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+		return 0;
+
 	radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1);
 
 	return 0;
@@ -357,6 +372,9 @@ void radeon_driver_irq_uninstall(struct drm_device * dev)
 	if (!dev_priv)
 		return;
 
+	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+		return;
+
 	if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
 		RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
 	/* Disable *all* interrupts */
diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index aad0c6fafcf4..38537d971a3e 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -3034,7 +3034,10 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
 		value = GET_SCRATCH(dev_priv, 2);
 		break;
 	case RADEON_PARAM_IRQ_NR:
-		value = drm_dev_to_irq(dev);
+		if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+			value = 0;
+		else
+			value = drm_dev_to_irq(dev);
 		break;
 	case RADEON_PARAM_GART_BASE:
 		value = dev_priv->gart_vm_start;