Boris Brezillon 7755c41b3e panvk/csf: Rework the occlusion query logic to avoid draw flushes
Right now, we have a problem when we flush draws inside a render pass
and we don't have enough information to re-emit the framebuffer/tiler
descriptors.

Turns out the only situations where this happens is when an occlusion
query end happens, but we shouldn't really flush the draws in that case.
What we should do instead is record the OQ in our command buffer, so we
can signal OQ availability when the fragment job is done.

In order to solve that, we add an OQ chain to the command buffer to
track OQs ending inside the render pass. We then walk this chain at
fragment job emission time to signal the syncobjs attached to each
query.

This also simplifies the whole occlusion query synchronization model:
instead of waiting for each syncobj individually, we now wait on
the iterators to make sure all OQs have landed. Thanks to this new
synchronization, we can batch OQ reset/copy operations and make the
command stream a lot shorter when big query ranges are copied/reset.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Reviewed-by: Benjamin Lee <benjamin.lee@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32973>
2025-01-15 14:07:37 +00:00
2022-11-22 19:04:13 +00:00
2025-01-08 20:37:51 +00:00
2023-11-02 11:37:46 +00:00
2024-05-13 14:32:12 +00:00
2024-11-18 22:29:14 +00:00
2024-11-07 17:57:57 +00:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


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