video: tegra: Expose vblank syncpoint
authorRobert Morell <rmorell@nvidia.com>
Mon, 21 Mar 2011 21:42:51 +0000 (14:42 -0700)
committerDan Willemsen <dwillemsen@nvidia.com>
Sat, 14 Sep 2013 08:20:21 +0000 (01:20 -0700)
commitded45a45212bdbaa4c3ed781f1efea0dab3467b2
tree97c4389929084f1828299479168dbcf8b39b9446
parent9100d0fd44373433bf980a5df457800b61930419
video: tegra: Expose vblank syncpoint

This change adds support for userspace to query the syncpoint that
display autoincrements every vblank.  This can be useful for
applications to time buffer submissions to throttle rendering and
prevent excessive host stalls.

bug 818525

Original-Change-Id: I050e4dcd08609da802f10eeec5b70da181b21717
Signed-off-by: Robert Morell <rmorell@nvidia.com>
Reviewed-on: http://git-master/r/40529
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>

Rebase-Id: Rac929d8ba6b14e469fef4c2753b040e02fae0b8e
drivers/video/tegra/dc/dc.c
drivers/video/tegra/dc/dc_priv.h
drivers/video/tegra/dc/ext/dev.c
include/video/tegra_dc_ext.h