Vetter: Atomic Modeset Support for KMS Drivers
For those who are interested in the grungy details of getting the new
atomic modesetting operations working with existing graphics drivers,
Daniel Vetter has
the scoop: "So I've just reposted my atomic modeset helper
series, and since the main goal of all that work was to ensure a smooth and
simple transition for existing drivers to the promised atomic land it's
time to elaborate a bit. The big problem is that the existing helper
libraries and callbacks to driver backends don't really fit the new
semantics, so some shuffling was required to avoid long-term pain. So if
you are a driver writer and just interested in the details then read for
what needs to be done to support atomic modeset updates using these new
helper libraries."