Paulo noticed that the fbc frontbuffer tracking flush callback occasionally gets a call without any bit set. This can happen when we have to filter flush calls due to e.g. gpu rendering. Filter these out. Reported-by: Paulo Zanoni <przanoni@xxxxxxxxx> Cc: Paulo Zanoni <przanoni@xxxxxxxxx> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_frontbuffer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_frontbuffer.c b/drivers/gpu/drm/i915/intel_frontbuffer.c index 2a1611a7ce1d..899b6112bbe0 100644 --- a/drivers/gpu/drm/i915/intel_frontbuffer.c +++ b/drivers/gpu/drm/i915/intel_frontbuffer.c @@ -179,6 +179,9 @@ void intel_frontbuffer_flush(struct drm_device *dev, frontbuffer_bits &= ~dev_priv->fb_tracking.busy_bits; mutex_unlock(&dev_priv->fb_tracking.lock); + if (!frontbuffer_bits) + return; + intel_mark_fb_busy(dev, frontbuffer_bits, NULL); intel_edp_drrs_flush(dev, frontbuffer_bits); -- 2.1.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
