NISLANDS_SMC_MC_RTT_ENABLE   78 drivers/gpu/drm/amd/amdgpu/si_dpm.h #define NISLANDS_SMC_MC_RTT_ENABLE   0x04
NISLANDS_SMC_MC_RTT_ENABLE  130 drivers/gpu/drm/radeon/nislands_smc.h #define NISLANDS_SMC_MC_RTT_ENABLE   0x04