FUS_MC_ARB_RAMCFG 3404 drivers/gpu/drm/radeon/evergreen.c 		mc_arb_ramcfg = RREG32(FUS_MC_ARB_RAMCFG);
FUS_MC_ARB_RAMCFG 3720 drivers/gpu/drm/radeon/evergreen.c 		tmp = RREG32(FUS_MC_ARB_RAMCFG);