Connor Abbott
c5be444500
The workaround for draws that need a CP_WAIT_FOR_ME didn't work if the
barrier before the draw is in a separate command buffer from the draw.
The barrier would add a pending CP_WAIT_FOR_ME, but it would get dropped
on the floor at the end of the command buffer and the draw wouldn't have
a pending CP_WAIT_FOR_ME so it wouldn't emit one. We don't know in the
barrier if the destination is a draw with the workaround, so we have two
options:
- Emit any pending CP_WAIT_FOR_ME at the end of the command buffer (and
before secondaries) in case there is a workaround draw later. This
will emit an extra CP_WAIT_FOR_ME at the end of the command buffer in
case there is an indirect command barrier.
- Always assume at the beginning of the command buffer that there is a
pending CP_WAIT_FOR_ME. This will emit an extra CP_WAIT_FOR_ME before
the first workaround-requiring draw in the command buffer, in case
there was a barrier earlier.
The only draws requiring a workaround are currently
vkCmdDraw*IndirectCount(), which we assume are rarer than indirect
command barriers, so we implement the second option. This entails
treating it as a cache invalidate.
This fixes some upcoming dynamic rendering CTS tests that do
vkCmdDrawIndirectCount() in a secondary but put the barrier for it in
the primary.
Fixes: 37939e9c54 ("turnip: Fix the lack of WFM before indirect draws")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17378>
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