diff options
| -rw-r--r-- | arch/s390/Kconfig | 8 | ||||
| -rw-r--r-- | arch/s390/kernel/topology.c | 2 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index abc7e1cc0e7c..2ee634bab222 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -513,6 +513,14 @@ config SCHED_TOPOLOGY making when dealing with machines that have multi-threading, multiple cores or multiple books. +config SCHED_TOPOLOGY_VERTICAL + def_bool y + bool "Use vertical CPU polarization by default" + depends on SCHED_TOPOLOGY + help + Use vertical CPU polarization by default if available. + The default CPU polarization is horizontal. + source "kernel/Kconfig.hz" config CERT_STORE diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 4bd0ee8eb1ab..58da6d1bae45 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -674,6 +674,8 @@ static int __init topology_init(void) set_topology_timer(); else topology_update_polarization_simple(); + if (IS_ENABLED(CONFIG_SCHED_TOPOLOGY_VERTICAL)) + set_polarization(1); register_sysctl("s390", topology_ctl_table); dev_root = bus_get_dev_root(&cpu_subsys); |