diff options
| author | Robert Morell <rmorell@nvidia.com> | 2011-03-21 14:42:51 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:48:13 -0800 |
| commit | e2404dfeecd4204174410e8e2b0e93ed54b2f63a (patch) | |
| tree | 3eb15ac3e29f9e9af60160fb92818a5c53944204 /include | |
| parent | 1a5c2fb4c725261aeac4f29ec14537bedef4b11d (diff) | |
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
Diffstat (limited to 'include')
| -rw-r--r-- | include/video/tegra_dc_ext.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/video/tegra_dc_ext.h b/include/video/tegra_dc_ext.h index 971beccb57fc..5ac7899bc6dd 100644 --- a/include/video/tegra_dc_ext.h +++ b/include/video/tegra_dc_ext.h @@ -184,6 +184,13 @@ struct tegra_dc_ext_csc { #define TEGRA_DC_EXT_SET_CSC \ _IOW('D', 0x08, struct tegra_dc_ext_csc) +/* + * Returns the auto-incrementing vblank syncpoint for the head associated with + * this device node + */ +#define TEGRA_DC_EXT_GET_VBLANK_SYNCPT \ + _IOR('D', 0x09, __u32) + enum tegra_dc_ext_control_output_type { TEGRA_DC_EXT_DSI, |