Commit 4a921645 authored by Jesse Barnes's avatar Jesse Barnes Committed by Dave Airlie

drm: when queuing an event with NEXTONMISS, return queued sequence to userspace

If we queue a vblank event but miss it, we should return the actual
sequence number we queued to userspace, so its event handling function
will know which event to look for.
Acked-by: default avatarKristian Høgsberg <krh@bitplanet.net>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent c9a9c5e0
...@@ -585,6 +585,7 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe, ...@@ -585,6 +585,7 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) && if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) &&
(seq - vblwait->request.sequence) <= (1 << 23)) { (seq - vblwait->request.sequence) <= (1 << 23)) {
vblwait->request.sequence = seq + 1; vblwait->request.sequence = seq + 1;
vblwait->reply.sequence = vblwait->request.sequence;
} }
DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n", DRM_DEBUG("event on vblank count %d, current %d, crtc %d\n",
......
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