VLV_GFX_CLK_FORCE_ON_BIT
intel_uncore_rmw(uncore, VLV_GTLC_SURVIVABILITY_REG, ~VLV_GFX_CLK_FORCE_ON_BIT,
s->gtlc_survive & ~VLV_GFX_CLK_FORCE_ON_BIT);
intel_uncore_rmw(uncore, VLV_GTLC_SURVIVABILITY_REG, VLV_GFX_CLK_FORCE_ON_BIT,
force_on ? VLV_GFX_CLK_FORCE_ON_BIT : 0);