diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 8546e3b333b44c2a07314678f4fd1da5c3382c21..0f89ce3d02b90d7640c47a9b42f137001c76bcaf 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -4754,6 +4754,12 @@ static int evergreen_startup(struct radeon_device *rdev)
 		rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -4923,10 +4929,6 @@ int evergreen_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 7969c0c8ec200be015909a3dada502c0b09af024..84583302b08162058d3ce0c2bfed31ddf1b2b44e 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -2025,6 +2025,12 @@ static int cayman_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -2190,10 +2196,6 @@ int cayman_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 4973bff37fec8ae9d5974a6f8e4f63811ee914f5..d0314ecbd7c18ecbd0f250b48efb3023eaf2d3ae 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3869,6 +3869,12 @@ static int r100_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r100.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -4022,9 +4028,6 @@ int r100_init(struct radeon_device *rdev)
 	r100_mc_init(rdev);
 	/* Fence driver */
 	r = radeon_fence_driver_init(rdev);
-	if (r)
-		return r;
-	r = radeon_irq_kms_init(rdev);
 	if (r)
 		return r;
 	/* Memory manager */
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index c60350e6872ddebdb5bc1bd923f6b2d4d6bc59fd..b9b776f1e5822cac4a2bc563bcbea886097ce9e6 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1382,6 +1382,12 @@ static int r300_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -1514,9 +1520,6 @@ int r300_init(struct radeon_device *rdev)
 	r300_mc_init(rdev);
 	/* Fence driver */
 	r = radeon_fence_driver_init(rdev);
-	if (r)
-		return r;
-	r = radeon_irq_kms_init(rdev);
 	if (r)
 		return r;
 	/* Memory manager */
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 6fce2eb4dd16b3269625c43ec767c634685ec63a..4e796ecf9ea4770e2388a56032cd135f5e861605 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -265,6 +265,12 @@ static int r420_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -411,10 +417,6 @@ int r420_init(struct radeon_device *rdev)
 	if (r) {
 		return r;
 	}
-	r = radeon_irq_kms_init(rdev);
-	if (r) {
-		return r;
-	}
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r) {
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index f795a4e092cb724374e5440775f37a37a87373d1..e1aece73b370c1ec9d6d9f86273caad0cbb14d36 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -194,6 +194,12 @@ static int r520_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -295,9 +301,6 @@ int r520_init(struct radeon_device *rdev)
 	rv515_debugfs(rdev);
 	/* Fence driver */
 	r = radeon_fence_driver_init(rdev);
-	if (r)
-		return r;
-	r = radeon_irq_kms_init(rdev);
 	if (r)
 		return r;
 	/* Memory manager */
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index b45e64848677a9606a61fea17d440c1a85ea7f09..0f30d0df1e077dc9031808782edfc7ec0ace306d 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3202,6 +3202,12 @@ static int r600_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -3356,10 +3362,6 @@ int r600_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 73051ce3121ee480a770b3f697289d35e0fd46e0..233a9b9fa1f7a4dde360a30559f902a2d81d0555 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -417,6 +417,12 @@ static int rs400_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -533,9 +539,6 @@ int rs400_init(struct radeon_device *rdev)
 	rs400_mc_init(rdev);
 	/* Fence driver */
 	r = radeon_fence_driver_init(rdev);
-	if (r)
-		return r;
-	r = radeon_irq_kms_init(rdev);
 	if (r)
 		return r;
 	/* Memory manager */
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 46fa1b07c5602388581bed64cc9bc5ea6065a35c..670b555d2ca229c3b39ac46cbbbf8e06e678f25b 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -923,6 +923,12 @@ static int rs600_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -1045,9 +1051,6 @@ int rs600_init(struct radeon_device *rdev)
 	rs600_debugfs(rdev);
 	/* Fence driver */
 	r = radeon_fence_driver_init(rdev);
-	if (r)
-		return r;
-	r = radeon_irq_kms_init(rdev);
 	if (r)
 		return r;
 	/* Memory manager */
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index ab4c86cfd5526f1884a4a7575cd29f0341e0b59b..55880d5962c31b3672dbfe9146df411af89618d1 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -651,6 +651,12 @@ static int rs690_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -774,9 +780,6 @@ int rs690_init(struct radeon_device *rdev)
 	rv515_debugfs(rdev);
 	/* Fence driver */
 	r = radeon_fence_driver_init(rdev);
-	if (r)
-		return r;
-	r = radeon_irq_kms_init(rdev);
 	if (r)
 		return r;
 	/* Memory manager */
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index ffcba730c57cb3172a4084d696d1cc70e9ec0adf..21c7d7b26e55547da60fa5dbe12818f11ae6f3bd 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -532,6 +532,12 @@ static int rv515_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -660,9 +666,6 @@ int rv515_init(struct radeon_device *rdev)
 	rv515_debugfs(rdev);
 	/* Fence driver */
 	r = radeon_fence_driver_init(rdev);
-	if (r)
-		return r;
-	r = radeon_irq_kms_init(rdev);
 	if (r)
 		return r;
 	/* Memory manager */
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 08aef24afe401601070c52800c7d8551f2c5b225..4a62ad2e539944ffaefc73b7169733bfefff86ff 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1887,6 +1887,12 @@ static int rv770_startup(struct radeon_device *rdev)
 		rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -2045,10 +2051,6 @@ int rv770_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index d1ba9d88f311026cd06078432ce806b012742897..a1b0da6b580859dfede1703ee822e8cab28fe91f 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -5350,6 +5350,12 @@ static int si_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = si_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -5533,10 +5539,6 @@ int si_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);