1 files changed, 28 insertions, 5 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 3357110e30ce..d2764bf6b2a2 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -141,19 +141,42 @@ void radeon_driver_preclose_kms(struct drm_device *dev,
  */
 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
 {
-        /* FIXME: implement */
-        return 0;
+        struct radeon_device *rdev = dev->dev_private;
+
+        if (crtc < 0 || crtc > 1) {
+                DRM_ERROR("Invalid crtc %d\n", crtc);
+                return -EINVAL;
+        }
+
+        return radeon_get_vblank_counter(rdev, crtc);
 }
 
 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
 {
-        /* FIXME: implement */
-        return 0;
+        struct radeon_device *rdev = dev->dev_private;
+
+        if (crtc < 0 || crtc > 1) {
+                DRM_ERROR("Invalid crtc %d\n", crtc);
+                return -EINVAL;
+        }
+
+        rdev->irq.crtc_vblank_int[crtc] = true;
+
+        return radeon_irq_set(rdev);
 }
 
 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 {
-        /* FIXME: implement */
+        struct radeon_device *rdev = dev->dev_private;
+
+        if (crtc < 0 || crtc > 1) {
+                DRM_ERROR("Invalid crtc %d\n", crtc);
+                return;
+        }
+
+        rdev->irq.crtc_vblank_int[crtc] = false;
+
+        radeon_irq_set(rdev);
 }