Until now we have been tracking the dstStageMask of barriers (where they
are consumed) but not where they are produced (the srcStageMask). With
this change we extend our barrier state to keep track of this as well.
This allows the driver to have better knowledge of the intended barrier
semantics so it can limit the amount of synchronization it does only
to the source stages involved with a barrier. We will do this in a
later patch.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16743>
Iago Toral Quiroga
ad249e9020