Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / intel_ringbuffer.c

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 51e9c9e718c4c16453659ef873f7d30b88f18f9e..cb3508f78bc350735e16962f8283e598c53deca6 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -220,9 +220,13 @@ static int init_render_ring(struct drm_device *dev,
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        int ret = init_ring_common(dev, ring);
+       int mode;
+
        if (IS_I9XX(dev) && !IS_GEN3(dev)) {
-               I915_WRITE(MI_MODE,
-                               (VS_TIMER_DISPATCH) << 16 | VS_TIMER_DISPATCH);
+               mode = VS_TIMER_DISPATCH << 16 | VS_TIMER_DISPATCH;
+               if (IS_GEN6(dev))
+                       mode |= MI_FLUSH_ENABLE << 16 | MI_FLUSH_ENABLE;
+               I915_WRITE(MI_MODE, mode);
        }
        return ret;
 }