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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-11-08 19:08:05 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-08 19:08:05 +0000 |
| commit | 37ee16ae93a3e4ae7dd51beb81d249f5f12a55c2 (patch) | |
| tree | a6cf9773ddb5eae9f173c6a9c9d6120faa5688a4 /arch/arm/Kconfig | |
| parent | 3b6353fae0d7ba772d7eb2651727332c9e9c74ac (diff) | |
| download | op-kernel-dev-37ee16ae93a3e4ae7dd51beb81d249f5f12a55c2.zip op-kernel-dev-37ee16ae93a3e4ae7dd51beb81d249f5f12a55c2.tar.gz | |
[ARM SMP] Add core ARM support for local timers
Add infrastructure for supporting per-cpu local timers to update
the profiling information and update system time accounting.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 91d5ef3..3bfef09 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -356,6 +356,16 @@ config HOTPLUG_CPU Say Y here to experiment with turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu. +config LOCAL_TIMERS + bool "Use local timer interrupts" + depends on SMP && n + default y + help + Enable support for local timers on SMP platforms, rather then the + legacy IPI broadcast method. Local timers allows the system + accounting to be spread across the timer interval, preventing a + "thundering herd" at every timer tick. + config PREEMPT bool "Preemptible Kernel (EXPERIMENTAL)" depends on EXPERIMENTAL |
