From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Let's not forget to mark the unused watermark levels as invalid after the readout. The vlv/chv codepath has this but the g4x didn't for some reason. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_pm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 45ec00e2e3c4..734deb0bd867 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -6915,6 +6915,8 @@ void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv) plane_id, USHRT_MAX); g4x_raw_fbc_wm_set(crtc_state, level, USHRT_MAX); + g4x_invalidate_wms(crtc, active, level); + crtc_state->wm.g4x.optimal = *active; crtc_state->wm.g4x.intermediate = *active; -- 2.35.1