From: Ville Syrjälä <[email protected]> When we sanitize planes let's wait for the scanout to stop before we let the subsequent code tear down the ggtt mappings and whatnot. Cures an underrun on my ivb when I boot with VT-d enabled and the BIOS fb gets thrown out due to stolen being considered unusable with VT-d active.
Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/display/intel_display.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index acade004e8b1..3e2c192ec708 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -2403,6 +2403,7 @@ static void intel_plane_disable_noatomic(struct intel_crtc *crtc, intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, false); intel_disable_plane(plane, crtc_state); + intel_wait_for_vblank(dev_priv, crtc->pipe); } static void -- 2.26.2 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
