From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Now that we're disabling L2 clock gating MI_OVERLAY_OFF actually works
on 830, so let's use it.
v2: Nuke the unused dev_priv variable
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_overlay.c | 19 ++++++-------------
1 file changed, 6 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 70d2ef7ecc29..4473a611c664 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -407,7 +407,6 @@ static void intel_overlay_off_tail(struct i915_gem_active *active,
/* overlay needs to be disabled in OCMD reg */
static int intel_overlay_off(struct intel_overlay *overlay)
{
- struct drm_i915_private *dev_priv = overlay->i915;
struct drm_i915_gem_request *req;
struct intel_ring *ring;
u32 flip_addr = overlay->flip_addr;
@@ -432,23 +431,17 @@ static int intel_overlay_off(struct intel_overlay *overlay)
}
ring = req->ring;
+
/* wait for overlay to go idle */
intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE);
intel_ring_emit(ring, flip_addr);
intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+
/* turn overlay off */
- if (IS_I830(dev_priv)) {
- /* Workaround: Don't disable the overlay fully, since otherwise
- * it dies on the next OVERLAY_ON cmd. */
- intel_ring_emit(ring, MI_NOOP);
- intel_ring_emit(ring, MI_NOOP);
- intel_ring_emit(ring, MI_NOOP);
- } else {
- intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
- intel_ring_emit(ring, flip_addr);
- intel_ring_emit(ring,
- MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
- }
+ intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
+ intel_ring_emit(ring, flip_addr);
+ intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+
intel_ring_advance(ring);
intel_overlay_flip_prepare(overlay, NULL);
--
2.10.2
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