There is one u_trace per subqueue to record trace events. When tracing
is enabled, trace_begin_cmdbuf and trace_end_cmdbuf will emit trace
events to u_trace and emit timestamp writes to the command streams.
The trace events are buffered in u_trace and are not flushed for
processing yet.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32360>
39824d70b8