diff options
Diffstat (limited to 'arch/s390/kernel/topology.c')
| -rw-r--r-- | arch/s390/kernel/topology.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 09711d55f123..d03edebce754 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -245,8 +245,8 @@ int topology_set_cpu_management(int fc) void update_cpu_masks(void) { - struct cpu_topology_s390 *topo; - int cpu, id; + struct cpu_topology_s390 *topo, *topo_package, *topo_sibling; + int cpu, sibling, pkg_first, smt_first, id; for_each_possible_cpu(cpu) { topo = &cpu_topology[cpu]; @@ -254,6 +254,7 @@ void update_cpu_masks(void) topo->core_mask = cpu_group_map(&socket_info, cpu); topo->book_mask = cpu_group_map(&book_info, cpu); topo->drawer_mask = cpu_group_map(&drawer_info, cpu); + topo->booted_cores = 0; if (topology_mode != TOPOLOGY_MODE_HW) { id = topology_mode == TOPOLOGY_MODE_PACKAGE ? 0 : cpu; topo->thread_id = cpu; @@ -263,6 +264,21 @@ void update_cpu_masks(void) topo->drawer_id = id; } } + for_each_online_cpu(cpu) { + topo = &cpu_topology[cpu]; + pkg_first = cpumask_first(&topo->core_mask); + topo_package = &cpu_topology[pkg_first]; + if (cpu == pkg_first) { + for_each_cpu(sibling, &topo->core_mask) { + topo_sibling = &cpu_topology[sibling]; + smt_first = cpumask_first(&topo_sibling->thread_mask); + if (sibling == smt_first) + topo_package->booted_cores++; + } + } else { + topo->booted_cores = topo_package->booted_cores; + } + } } void store_topology(struct sysinfo_15_1_x *info) |