This is, unfortunately, a large flag-day mega-commit. However, any
other approach would likely be fragile and involve a lot more churn as
we try to plumb the new vk_fence and vk_semaphore primitives into ANV's
submit code before we delete it all. Instead, we do it all in one go
and accept the consequences.
While this should be mostly functionally equivalent to the previous
code, there is one potential perf-affecting change. The command buffer
chaining optimization no longer works across VkSubmitInfo structs.
Within a single VkSubmitInfo, we will attempt to chain all the command
buffers together but we no longer try to chain across a VkSubmitInfo
boundary. Hopefully, this isn't a significant perf problem. If it ever
is, we'll have to teach the core runtime code how to combine two or more
VkSubmitInfos into a single vk_queue_submit.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13427>
Jason Ekstrand
36ea90a361