diff options
| author | Michel Dänzer <michel.daenzer@amd.com> | 2016-06-24 16:59:47 +0900 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-07-12 12:54:50 +0200 |
| commit | 97ef1ae0e07d404bbebd46a75363528ff5c6e668 (patch) | |
| tree | 5081de150b56b163d9e75e0587b58aab95e7c1b1 | |
| parent | e6f15b763ab2bc47000ec302123e2fb3bf2ad7d4 (diff) | |
| download | linux-97ef1ae0e07d404bbebd46a75363528ff5c6e668.tar.bz2 | |
drm: Only handle _DRM_VBLANK_NEXTONMISS once
Consolidate the _DRM_VBLANK_NEXTONMISS handling between drm_wait_vblank
and drm_queue_vblank_event.
This is a cleanup spotted while working on other changes.
(The way it was previously handled could also theoretically result in
drm_queue_vblank_event unnecessarily bumping vblwait->request.sequence,
if the vblank counter happened to increment between the
drm_vblank_count(_and_time) calls in each function, but that's unlikely)
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466755187-29418-1-git-send-email-michel@daenzer.net
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 149453c9dc26..e98b24b24cba 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -1588,12 +1588,6 @@ static int drm_queue_vblank_event(struct drm_device *dev, unsigned int pipe, seq = drm_vblank_count_and_time(dev, pipe, &now); - if ((vblwait->request.type & _DRM_VBLANK_NEXTONMISS) && - (seq - vblwait->request.sequence) <= (1 << 23)) { - vblwait->request.sequence = seq + 1; - vblwait->reply.sequence = vblwait->request.sequence; - } - DRM_DEBUG("event on vblank count %d, current %d, crtc %u\n", vblwait->request.sequence, seq, pipe); @@ -1690,6 +1684,11 @@ int drm_wait_vblank(struct drm_device *dev, void *data, goto done; } + if ((flags & _DRM_VBLANK_NEXTONMISS) && + (seq - vblwait->request.sequence) <= (1 << 23)) { + vblwait->request.sequence = seq + 1; + } + if (flags & _DRM_VBLANK_EVENT) { /* must hold on to the vblank ref until the event fires * drm_vblank_put will be called asynchronously @@ -1697,11 +1696,6 @@ int drm_wait_vblank(struct drm_device *dev, void *data, return drm_queue_vblank_event(dev, pipe, vblwait, file_priv); } - if ((flags & _DRM_VBLANK_NEXTONMISS) && - (seq - vblwait->request.sequence) <= (1<<23)) { - vblwait->request.sequence = seq + 1; - } - DRM_DEBUG("waiting on vblank count %d, crtc %u\n", vblwait->request.sequence, pipe); vblank->last_wait = vblwait->request.sequence; |