does mesa support linux-explicit-synchronization-unstable-v1?

[HalleyZhao]

Hi experts:I noticed that weston merged some patches to support explicited GPU synchronization: https://bugs.freedesktop.org/show_bug.cgi?id=98766
when I tried to search corresponding feature in mesa, nothing is found.is this feature test-able with recent weston/mesa?thanks.
--------------------------------

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/wayland-devel/attachments/20190723/8a229f8c/attachment.html>