[PATCH 2/4] drm: Push latency sensitive bits of vblank scanoutpos timestamping into kms drivers.

2013-10-30 Thread Mario Kleiner
A change in locking of some kms drivers (currently intel-kms) make the old approach too inaccurate and also incompatible with the PREEMPT_RT realtime kernel patchset. The driver->get_scanout_position() method of intel-kms now needs to aquire a spinlock, which clashes badly with the former

[PATCH 2/4] drm: Push latency sensitive bits of vblank scanoutpos timestamping into kms drivers.

2013-10-26 Thread Mario Kleiner
A change in locking of some kms drivers (currently intel-kms) make the old approach too inaccurate and also incompatible with the PREEMPT_RT realtime kernel patchset. The driver->get_scanout_position() method of intel-kms now needs to aquire a spinlock, which clashes badly with the former