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Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 91e8954f1237..25510adb07d3 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -153,6 +153,10 @@ config S390 select TTY select VIRT_CPU_ACCOUNTING select VIRT_TO_BUS + select ARCH_SUPPORTS_NUMA_BALANCING + select ARCH_WANTS_PROT_NUMA_PROT_NONE + select HAVE_ARCH_EARLY_PFN_TO_NID + config SCHED_OMIT_FRAME_POINTER def_bool y @@ -386,6 +390,39 @@ config HOTPLUG_CPU config SCHED_SMT def_bool n +# Some NUMA nodes have memory ranges that span +# other nodes. Even though a pfn is valid and +# between a node's start and end pfns, it may not +# reside on that node. See memmap_init_zone() +# for details. <- They meant memory holes! +config NODES_SPAN_OTHER_NODES + def_bool NUMA + +config NUMA + bool "NUMA support" + depends on SMP && 64BIT && SCHED_TOPOLOGY + default n + help + Enable NUMA support + + This option adds NUMA support to the kernel. + + An operation mode can be selected by appending + numa=<method> to the kernel command line. + + The default behaviour is identical to appending numa=plain to + the command line. This will create just one node with all + available memory and all CPUs in it. + +config NODES_SHIFT + int "Maximum NUMA nodes (as a power of 2)" + range 1 10 + depends on NUMA + default "4" + help + Specify the maximum number of NUMA nodes available on the target + system. Increases memory reserved to accommodate various tables. + config SCHED_MC def_bool n |