From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> We should update the last in drm_update_vblank_count() to avoid applying the diff more than once. This could occur eg. if drm_vblank_off() gets called multiple times for the crtc. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/drm_irq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 0523f5b..67507a4 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -109,6 +109,8 @@ static void drm_update_vblank_count(struct drm_device *dev, int crtc) if (diff == 0) return; + vblank->last = cur_vblank; + /* Reinitialize corresponding vblank timestamp if high-precision query * available. Skip this step if query unsupported or failed. Will * reinitialize delayed at next vblank interrupt in that case. -- 1.8.5.5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
