GFX_POWER_GATING_ENABLE
WREG32_FIELD(RLC_PG_CNTL, GFX_POWER_GATING_ENABLE, 1);
WREG32_FIELD(RLC_PG_CNTL, GFX_POWER_GATING_ENABLE, enable ? 1 : 0);
GFX_POWER_GATING_ENABLE,
mask |= GFX_POWER_GATING_ENABLE | GFX_POWER_GATING_SRC;