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- Add a tracing framework, to measure duration, execution count and longest duration of main loop/vsync interrupt work GPINT command is used to start/stop the measurements. Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by: Anthony Koo <anthony.koo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>