diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2009-06-23 10:00:31 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-06-24 18:34:40 +0100 |
| commit | 1b2bc75c1bde6581d2694cb3ed7fb06b69685008 (patch) | |
| tree | 800fc23052bccb1fbf8acfbaabbf5648c69daa9e /arch/mips/Kconfig | |
| parent | 4ac4aa5cc3b00cc558575065ae71043e92d1a69a (diff) | |
MIPS: Add arch generic CPU hotplug
Each platform has to add support for CPU hotplugging itself by providing
suitable definitions for the cpu_disable and cpu_die of the smp_ops
methods and setting SYS_SUPPORTS_HOTPLUG_CPU. A platform should only set
SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the
necessary changes. This patch contains the changes to the dummy smp_ops
definition for uni-processor systems.
Parts of the code contributed by Cavium Inc.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index b29f0280d71..eb7e8d795c6 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -784,8 +784,17 @@ config SYS_HAS_EARLY_PRINTK bool config HOTPLUG_CPU + bool "Support for hot-pluggable CPUs" + depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU + 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 SYS_SUPPORTS_HOTPLUG_CPU bool - default n config I8259 bool |