I inherited this from i965. It would be nice to track the state size
so INTEL_DEBUG=color,bat decoding can print the right number of e.g.
binding table entries or blend states, but...without a single point
of entry for state, it's a little tricky to get right. Punt for now,
and drop the dead code in the meantime.
i965 re-emits 3DSTATE_CONSTANT_* on every batch, so there's no point in
restoring the constants from the context. Iris actually re-pins the
constant buffers properly across the batch, and avoids re-emitting the
constant packets unless it's necessary. So, we don't want ISP_DIS.
This is an awkward corner case. We create batches in order, each of
which creates and pins a BO. The other batches may not be set up yet,
so it may not be safe to ask whether they reference a BO.
Just avoid this for now. We could avoid it for other context-local BOs
too, but we currently don't have a flag for that (and I'm not certain
whether it's worth it).
When flushing a batch due to a data dependency, we need to not only
kick off the other batch's work, but stall our execution until it
completes. Just wait on last_syncpt after flushing it.
(adjusted by Ken to make the signalling sync object immediately on
batch reset, rather than batch finish time. this will work better
with deferred flushes...)
The intention is that render and compute use their own contexts,
and each is PIPELINE_SELECT'd to the right pipeline. But we hadn't
actually made them, so we got the fd-default context.
Thanks to Chris Wilson for catching this!
This makes e.g. the render batch aware of the compute batch, so it can
ask questions like "is this BO referenced by some other batch?" and do
something about that.
chaining to a new batch reuses create_batch(), but we don't need to do
the work of pinning BOs we inherit from a previous batch...when that is
actually part of the same execbuf invocation.
instead, just flag it when setting primary_batch_size = 0, in
iris_batch_reset
some of them had typos, didn't say 'authors or copyright holders',
or other mistakes. This is now https://opensource.org/licenses/MIT
text, formatted consistently.
We used to not reset the batch, and just keep appending to it, so you'd
get the same invalid contents over and over.
I'd also really like to know about this, so aborting seems wise for now,
if not for the long term
we need proper batch chaining. without relocations, we can't grow,
since we've only allocated so much VMA for the batch, and the mechanism
only works if we can pin it at the old address
