drm/i915: fix up ivb plane 3 pageflips

[pandora-kernel.git] / drivers / gpu / drm / i915 / intel_display.c

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 9147894..e0aa064 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6158,17 +6158,34 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
        struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
+       uint32_t plane_bit = 0;
        int ret;
 
        ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
        if (ret)
                goto err;
 
+       switch(intel_crtc->plane) {
+       case PLANE_A:
+               plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
+               break;
+       case PLANE_B:
+               plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
+               break;
+       case PLANE_C:
+               plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
+               break;
+       default:
+               WARN_ONCE(1, "unknown plane in flip command\n");
+               ret = -ENODEV;
+               goto err;
+       }
+
        ret = intel_ring_begin(ring, 4);
        if (ret)
                goto err_unpin;
 
-       intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
+       intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
        intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
        intel_ring_emit(ring, (obj->gtt_offset));
        intel_ring_emit(ring, (MI_NOOP));