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arm64: make Timer Interrupt Frequency selectable

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It allows a selectable timer interrupt frequency of 100, 250, 300 and 1000 HZ.
We will get better performance when choose a suitable frequency in some scene.

Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Kefeng Wang 2015-10-26 11:48:16 +08:00 committed by Catalin Marinas
parent f23bef34d3
commit f90df5e27d
1 changed files with 1 additions and 4 deletions
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arch/arm64/Kconfig
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@ -454,10 +454,7 @@ config HOTPLUG_CPU
can be controlled through /sys/devices/system/cpu. can be controlled through /sys/devices/system/cpu.
source kernel/Kconfig.preempt source kernel/Kconfig.preempt
source kernel/Kconfig.hz
config HZ
int
default 100
config ARCH_HAS_HOLES_MEMORYMODEL config ARCH_HAS_HOLES_MEMORYMODEL
def_bool y if SPARSEMEM def_bool y if SPARSEMEM