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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-07-26 13:19:43 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-07-27 10:48:42 +0100
commit5388a6b266e9c3357353332ba0cd5549082887f1 (patch)
tree9d035a01bb75fa466e70cd9590eb963a30f3d53d /arch/arm/kernel/machine_kexec.c
parent9ca03a21e320a6bf44559323527aba704bcc8772 (diff)
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ARM: SMP: Always enable clock event broadcast support
The TWD local timers are unable to wake up the CPU when it is placed into a low power mode, eg. C3. Therefore, we need to adapt things such that the TWD code can cope with this. We do this by always providing a broadcast tick function, and marking the fact that the TWD local timer will stop in low power modes. This means that when the CPU is placed into a low power mode, the core timer code marks this fact, and allows an IPI to be given to the core. Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de>
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