drm/i965: On I965, use correct 3DSTATE_DRAWING_RECTANGLE command in vblank

The batchbuffer submission paths were fixed to use the 965-specific command,
but the vblank tasklet was not. When the older version is sent, the 965 will
lock up.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 20 insertions, 10 deletions

diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index 92653b38e64c..5a6f8309d8be 100644
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -125,16 +125,26 @@ static void i915_vblank_tasklet(struct drm_device *dev)
 
         i915_kernel_lost_context(dev);
 
-        BEGIN_LP_RING(6);
-
-        OUT_RING(GFX_OP_DRAWRECT_INFO);
-        OUT_RING(0);
-        OUT_RING(0);
-        OUT_RING(sarea_priv->width | sarea_priv->height << 16);
-        OUT_RING(sarea_priv->width | sarea_priv->height << 16);
-        OUT_RING(0);
-
-        ADVANCE_LP_RING();
+        if (IS_I965G(dev)) {
+                BEGIN_LP_RING(4);
+
+                OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
+                OUT_RING(0);
+                OUT_RING(((sarea_priv->width - 1) & 0xffff) | ((sarea_priv->height - 1) << 16));
+                OUT_RING(0);
+                ADVANCE_LP_RING();
+        } else {
+                BEGIN_LP_RING(6);
+
+                OUT_RING(GFX_OP_DRAWRECT_INFO);
+                OUT_RING(0);
+                OUT_RING(0);
+                OUT_RING(sarea_priv->width | sarea_priv->height << 16);
+                OUT_RING(sarea_priv->width | sarea_priv->height << 16);
+                OUT_RING(0);
+
+                ADVANCE_LP_RING();
+        }
 
         sarea_priv->ctxOwner = DRM_KERNEL_CONTEXT;