As we have a single list for vblank waiters (not sorted by the vblank they are waiting for), make sure we wake up all waiters rather than just the first as we may have multiple consumers for this vblank event. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx> --- drivers/gpu/drm/drm_vblank.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index 70f2b9593edc..930e3ed5234b 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -1118,7 +1118,7 @@ void drm_crtc_vblank_off(struct drm_crtc *crtc) if (drm_core_check_feature(dev, DRIVER_ATOMIC) || !vblank->inmodeset) drm_vblank_disable_and_save(dev, pipe); - wake_up(&vblank->queue); + wake_up_all(&vblank->queue); /* * Prevent subsequent drm_vblank_get() from re-enabling @@ -1572,7 +1572,7 @@ bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe) spin_unlock(&dev->vblank_time_lock); - wake_up(&vblank->queue); + wake_up_all(&vblank->queue); /* With instant-off, we defer disabling the interrupt until after * we finish processing the following vblank after all events have -- 2.14.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
