if (INTEL_INFO(dev)->gen > 3) {
int mode = VS_TIMER_DISPATCH << 16 | VS_TIMER_DISPATCH;
- if (IS_GEN6(dev) || IS_GEN7(dev))
- mode |= MI_FLUSH_ENABLE << 16 | MI_FLUSH_ENABLE;
I915_WRITE(MI_MODE, mode);
- if (IS_GEN7(dev))
- I915_WRITE(GFX_MODE_GEN7,
- GFX_MODE_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) |
- GFX_MODE_ENABLE(GFX_REPLAY_MODE));
}
+ /* We need to disable the AsyncFlip performance optimisations in order
+ * to use MI_WAIT_FOR_EVENT within the CS. It should already be
+ * programmed to '1' on all products.
+ */
+ if (INTEL_INFO(dev)->gen >= 6)
+ I915_WRITE(MI_MODE, GFX_MODE_ENABLE(ASYNC_FLIP_PERF_DISABLE));
+
+ /* Required for the hardware to program scanline values for waiting */
+ if (INTEL_INFO(dev)->gen == 6)
+ I915_WRITE(GFX_MODE,
+ GFX_MODE_ENABLE(GFX_TLB_INVALIDATE_ALWAYS));
+
+ if (IS_GEN7(dev))
+ I915_WRITE(GFX_MODE_GEN7,
+ GFX_MODE_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) |
+ GFX_MODE_ENABLE(GFX_REPLAY_MODE));
+
if (INTEL_INFO(dev)->gen >= 5) {
ret = init_pipe_control(ring);
if (ret)