drm/i915: use calculated state for vblank evasion

crtc->active will be gone eventually, and this check should be just as good.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 28fc3ef..a232dc9 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13658,6 +13658,7 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc)
        struct drm_device *dev = crtc->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+       struct drm_crtc_state *crtc_state = intel_crtc->base.state;
        struct intel_plane *intel_plane;
        struct drm_plane *p;
        unsigned fb_bits = 0;
@@ -13701,7 +13702,7 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc)
        intel_runtime_pm_get(dev_priv);
 
        /* Perform vblank evasion around commit operation */
-       if (intel_crtc->active)
+       if (crtc_state->active && !needs_modeset(crtc_state))
                intel_crtc->atomic.evade =
                        intel_pipe_update_start(intel_crtc,
                                                &intel_crtc->atomic.start_vbl_count);