id->die = get_physical_die_id(cpu);
 }
 
+int is_cpu_in_power_domain(int cpu, struct isst_id *id)
+{
+       struct isst_id tid;
+
+       set_isst_id(&tid, cpu);
+
+       if (id->pkg == tid.pkg && id->die == tid.die)
+               return 1;
+
+       return 0;
+}
+
 int get_cpufreq_base_freq(int cpu)
 {
        return parse_int_file(0, "/sys/devices/system/cpu/cpu%d/cpufreq/base_frequency", cpu);
                if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
                        continue;
 
-               if (cpu_map[i].pkg_id == id->pkg &&
-                       cpu_map[i].die_id == id->die &&
-                       cpu_map[i].punit_cpu_core > max_id)
+               if (is_cpu_in_power_domain(i, id) &&
+                   cpu_map[i].punit_cpu_core > max_id)
                        max_id = cpu_map[i].punit_cpu_core;
        }
 
                                if (!CPU_ISSET_S(j, present_cpumask_size, present_cpumask))
                                        continue;
 
-                               if (cpu_map[j].pkg_id == id->pkg &&
-                                   cpu_map[j].die_id == id->die &&
+                               if (is_cpu_in_power_domain(j, id) &&
                                    cpu_map[j].punit_cpu_core == i) {
                                        CPU_SET_S(j, core_cpumask_size,
                                                  core_cpumask);
                if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
                        continue;
 
-               if (id->pkg != get_physical_package_id(i) ||
-                   id->die != get_physical_die_id(i))
+               if (!is_cpu_in_power_domain(i, id))
                        continue;
 
                CPU_SET_S(i, ctdp_level->core_cpumask_size,
                if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
                        continue;
 
-               if (id->pkg != get_physical_package_id(i) ||
-                   id->die != get_physical_die_id(i))
+               if (!is_cpu_in_power_domain(i, id))
                        continue;
 
                cpu_bf = parse_int_file(1,
                        if (ctdp_level.cpu_count) {
                                int i, max_cpus = get_topo_max_cpus();
                                for (i = 0; i < max_cpus; ++i) {
-                                       if (id->pkg != get_physical_package_id(i) || id->die != get_physical_die_id(i))
+                                       if (!is_cpu_in_power_domain(i, id))
                                                continue;
                                        if (CPU_ISSET_S(i, ctdp_level.core_cpumask_size, ctdp_level.core_cpumask)) {
                                                fprintf(stderr, "online cpu %d\n", i);
        freq_low = pbf_info->p1_low * 100000;
 
        for (i = 0; i < get_topo_max_cpus(); ++i) {
-               if (id->pkg != get_physical_package_id(i) ||
-                   id->die != get_physical_die_id(i))
+               if (!is_cpu_in_power_domain(i, id))
                        continue;
 
                if (CPU_ISSET_S(i, pbf_info->core_cpumask_size,
        int i;
 
        for (i = 0; i < get_topo_max_cpus(); ++i) {
-               if (id->pkg != get_physical_package_id(i) ||
-                   id->die != get_physical_die_id(i))
+               if (!is_cpu_in_power_domain(i, id))
                        continue;
 
                adjust_scaling_max_from_base_freq(i);
        int i;
 
        for (i = 0; i < get_topo_max_cpus(); ++i) {
-               if (id->pkg != get_physical_package_id(i) ||
-                   id->die != get_physical_die_id(i))
+               if (!is_cpu_in_power_domain(i, id))
                        continue;
 
                adjust_scaling_max_from_base_freq(i);
        int i;
 
        for (i = 0; i < get_topo_max_cpus(); ++i) {
-               if (id->pkg != get_physical_package_id(i) ||
-                   id->die != get_physical_die_id(i))
+               if (!is_cpu_in_power_domain(i, id))
                        continue;
 
                set_cpufreq_scaling_min_max_from_cpuinfo(i, 1, 1);
                int clos;
                struct isst_id tid;
 
-               if (id->pkg != get_physical_package_id(i) ||
-                   id->die != get_physical_die_id(i))
+               if (!is_cpu_in_power_domain(i, id))
                        continue;
 
                if (CPU_ISSET_S(i, mask_size, cpu_mask))