From 8be6ca8537e1230da8e92c753df4125151a3f6b1 Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Mon, 24 Aug 2015 16:38:23 -0700 Subject: [PATCH] drm/i915: Also call frontbuffer flip when disabling planes. We also need to call the frontbuffer flip to trigger proper invalidations when disabling planes. Otherwise we will miss screen updates when disabling sprites or cursor. On core platforms where HW tracking also works, this issue is totally masked because HW tracking triggers PSR exit however on VLV/CHV that has only SW tracking we miss screen updates when disabling planes. It was caught with kms_psr_sink_crc sprite_plane_onoff and cursor_plane_onoff subtests running on VLV/CHV. This is probably a regression since I can also get this with the manual test case, but with so many changes on atomic modeset I couldn't track exactly when this was introduced. Reviewed-by: Paulo Zanoni Signed-off-by: Rodrigo Vivi Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 542fb8c..cf8dfa5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11627,7 +11627,7 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state, intel_crtc->atomic.update_wm_pre = true; } - if (visible) + if (visible || was_visible) intel_crtc->atomic.fb_bits |= to_intel_plane(plane)->frontbuffer_bit; -- 2.7.4