]> git.baikalelectronics.ru Git - kernel.git/commit
arm64: read enable-method for CPU0
authorMark Rutland <mark.rutland@arm.com>
Thu, 24 Oct 2013 19:30:17 +0000 (20:30 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 25 Oct 2013 10:33:20 +0000 (11:33 +0100)
commit013001871a3ec260db46238825171994dc2a9c4c
tree906c836879d4994ca6abd5e87a5f175d81020697
parent80e97728027fd3984ac60caa23e001e621620bc8
arm64: read enable-method for CPU0

With the advent of CPU_HOTPLUG, the enable-method property for CPU0 may
tells us something useful (i.e. how to hotplug it back on), so we must
read it along with all the enable-method for all the other CPUs.  Even
on UP the enable-method may tell us useful information (e.g. if a core
has some mechanism that might be usable for cpuidle), so we should
always read it.

This patch factors out the reading of the enable method, and ensures
that CPU0's enable method is read regardless of whether the kernel is
built with SMP support.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/include/asm/cpu_ops.h
arch/arm64/kernel/cpu_ops.c
arch/arm64/kernel/setup.c
arch/arm64/kernel/smp.c