CCS_SIZE_MASK
((num_ccs_blks - 1) & CCS_SIZE_MASK) << CCS_SIZE_SHIFT;
xe_gt_assert(gt, FIELD_FIT(CCS_SIZE_MASK, num_ccs_blks - 1));
ccs_copy_size = REG_FIELD_PREP(CCS_SIZE_MASK, num_ccs_blks - 1);