IH_PERF_SEL_RB0_WPTR_WRITEBACK_VF9 21788 drivers/gpu/drm/amd/include/navi10_enum.h IH_PERF_SEL_RB0_WPTR_WRITEBACK_VF9       = 0x00000064,
IH_PERF_SEL_RB0_WPTR_WRITEBACK_VF9 21733 drivers/gpu/drm/amd/include/vega10_enum.h IH_PERF_SEL_RB0_WPTR_WRITEBACK_VF9       = 0x00000047,