Connor Abbott
630380349b
Before this we tried hard to optimize for the sysmem case by emitting the events for the renderpass inline and only discarding them in the gmem case. However this won't work if we need to emit the render_pass_start event after the binning IB, because we don't know whether the binning IB will be emitted until the RP end time. The old system also required a ton of confusing code to keep track of the start/end pointers with suspending and resuming renderpasses. All of that goes away if we use a separate u_trace for renderpass events and just copy it to the main trace buffer for sysmem. With this, the previous method of using the space between trace_rp_start and trace_rp_drawcalls_start to keep track of the renderpass_start event and disable it when emitting a split dynamic renderpass at submit time doesn't work anymore. Just move trace_renderpass_start() to tu_cmd_render() time after the draw calls have been recorded, which is now safe to do. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35751>
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