[RFC PATCH] arm64: make Timer Interrupt Frequency selectable

[Kefeng Wang]

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: Catalin Marinas <catalin.marinas at arm.com>
Cc: Will Deacon <will.deacon at arm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang at huawei.com>
---
 arch/arm64/Kconfig | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 07d1811..4a07d89 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -432,10 +432,7 @@ config HOTPLUG_CPU
 	  can be controlled through /sys/devices/system/cpu.
 
 source kernel/Kconfig.preempt
-
-config HZ
-	int
-	default 100
+source kernel/Kconfig.hz
 
 config ARCH_HAS_HOLES_MEMORYMODEL
 	def_bool y if SPARSEMEM
-- 
1.7.12.4