whitelist_mcr_reg
whitelist_mcr_reg(w, GEN8_L3SQCREG4);
whitelist_mcr_reg(w, GEN8_L3SQCREG4);
whitelist_mcr_reg(w, GEN9_HALF_SLICE_CHICKEN7);
whitelist_mcr_reg(w, GEN10_SAMPLER_MODE);
whitelist_mcr_reg(w, XEHP_COMMON_SLICE_CHICKEN3);
whitelist_mcr_reg(w, XEHP_COMMON_SLICE_CHICKEN3);