[PATCH v2 18/20] drm/i915: Only commit planes on crtc's that have changed planes.

Maarten Lankhorst
2015-07-07T07:08:51Z

No point in applying vblank evasion if there's nothing to evade.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 71fc35d814d1..2eaccdc59a9a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13288,7 +13288,10 @@ static int intel_atomic_commit(struct drm_device *dev,
if (!modeset)
intel_pre_plane_update(intel_crtc);

- drm_atomic_helper_commit_planes_on_crtc(crtc_state);
+ if (crtc->state->planes_changed ||
+ to_intel_crtc_state(crtc->state)->update_pipe)
+ drm_atomic_helper_commit_planes_on_crtc(crtc_state);
+
intel_post_plane_update(intel_crtc);
}

--
2.1.0