diff options
Diffstat (limited to 'arch/loongarch/Kconfig')
| -rw-r--r-- | arch/loongarch/Kconfig | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 03d9b74eb2a9..85ef258d36d2 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -64,6 +64,7 @@ config LOONGARCH select GENERIC_LIB_UCMPDI2 select GENERIC_PCI_IOMAP select GENERIC_SCHED_CLOCK + select GENERIC_SMP_IDLE_THREAD select GENERIC_TIME_VSYSCALL select GPIOLIB select HAVE_ARCH_AUDITSYSCALL @@ -92,7 +93,7 @@ config LOONGARCH select HAVE_RSEQ select HAVE_SYSCALL_TRACEPOINTS select HAVE_TIF_NOHZ - select HAVE_VIRT_CPU_ACCOUNTING_GEN + select HAVE_VIRT_CPU_ACCOUNTING_GEN if !SMP select IRQ_FORCED_THREADING select IRQ_LOONGARCH_CPU select MODULES_USE_ELF_RELA if MODULES @@ -297,6 +298,43 @@ config EFI This enables the kernel to use EFI runtime services that are available (such as the EFI variable services). +config SMP + bool "Multi-Processing support" + help + This enables support for systems with more than one CPU. If you have + a system with only one CPU, say N. If you have a system with more + than one CPU, say Y. + + If you say N here, the kernel will run on uni- and multiprocessor + machines, but will use only one CPU of a multiprocessor machine. If + you say Y here, the kernel will run on many, but not all, + uniprocessor machines. On a uniprocessor machine, the kernel + will run faster if you say N here. + + See also the SMP-HOWTO available at <http://www.tldp.org/docs.html#howto>. + + If you don't know what to do here, say N. + +config HOTPLUG_CPU + bool "Support for hot-pluggable CPUs" + depends on SMP + select GENERIC_IRQ_MIGRATION + help + Say Y here to allow turning CPUs off and on. CPUs can be + controlled through /sys/devices/system/cpu. + (Note: power management support will enable this option + automatically on SMP systems. ) + Say N if you want to disable CPU hotplug. + +config NR_CPUS + int "Maximum number of CPUs (2-256)" + range 2 256 + depends on SMP + default "64" + help + This allows you to specify the maximum number of CPUs which this + kernel will support. + config FORCE_MAX_ZONEORDER int "Maximum zone order" range 14 64 if PAGE_SIZE_64KB |