diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index e64b05ea95ea..53a526c7b24d 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -1610,7 +1610,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data, ret = drm_vblank_get(dev, pipe); if (ret) { - DRM_DEBUG("failed to acquire vblank counter, %d\n", ret); + DRM_DEBUG("crtc %d failed to acquire vblank counter, %d\n", pipe, ret); return ret; } seq = drm_vblank_count(dev, pipe); @@ -1638,13 +1638,15 @@ int drm_wait_vblank(struct drm_device *dev, void *data, return drm_queue_vblank_event(dev, pipe, vblwait, file_priv); } - DRM_DEBUG("waiting on vblank count %u, crtc %u\n", - vblwait->request.sequence, pipe); - DRM_WAIT_ON(ret, vblank->queue, 3 * HZ, - (((drm_vblank_count(dev, pipe) - - vblwait->request.sequence) <= (1 << 23)) || - !vblank->enabled || - !dev->irq_enabled)); + if (vblwait->request.sequence != seq) { + DRM_DEBUG("waiting on vblank count %u, crtc %u\n", + vblwait->request.sequence, pipe); + DRM_WAIT_ON(ret, vblank->queue, 3 * HZ, + (((drm_vblank_count(dev, pipe) - + vblwait->request.sequence) <= (1 << 23)) || + !vblank->enabled || + !dev->irq_enabled)); + } if (ret != -EINTR) { struct timeval now; @@ -1653,10 +1655,10 @@ int drm_wait_vblank(struct drm_device *dev, void *data, vblwait->reply.tval_sec = now.tv_sec; vblwait->reply.tval_usec = now.tv_usec; - DRM_DEBUG("returning %u to client\n", - vblwait->reply.sequence); + DRM_DEBUG("crtc %d returning %u to client\n", + pipe, vblwait->reply.sequence); } else { - DRM_DEBUG("vblank wait interrupted by signal\n"); + DRM_DEBUG("crtc %d vblank wait interrupted by signal\n", pipe); } done: |