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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-11-02 22:24:33 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-02 22:24:33 +0000
commita054a811597a17ffbe92bc4db04a4dc2f1b1ea55 (patch)
treeb600081d964d6fe7cc1cfe2669a739da0e1743f4 /arch/arm/Kconfig
parent273c2cdb2b6d6743d85ddbde82e71f8adbf5bf10 (diff)
[ARM SMP] Add hotplug CPU infrastructure
This patch adds the infrastructure to support hotplug CPU on ARM platforms. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r--arch/arm/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index dc6d8342e5e..6b12d71978d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -349,6 +349,13 @@ config NR_CPUS
depends on SMP
default "4"
+config HOTPLUG_CPU
+ bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+ depends on SMP && HOTPLUG && EXPERIMENTAL
+ help
+ Say Y here to experiment with turning CPUs off and on. CPUs
+ can be controlled through /sys/devices/system/cpu.
+
config PREEMPT
bool "Preemptible Kernel (EXPERIMENTAL)"
depends on EXPERIMENTAL