powerpc/cpuidle: Add cpu_idle_wait() to allow switching of idle routines
authorDeepthi Dharwar <deepthi@linux.vnet.ibm.com>
Wed, 30 Nov 2011 02:46:31 +0000 (02:46 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Thu, 8 Dec 2011 02:54:58 +0000 (13:54 +1100)
commit771dae81896855d25f7f8746aaf56c0238deafb6
treeb1ddfa238260332dab446a5fa21db1f7ed0fb41b
parentfaa8bf8878636e40646d307e0516dbadb3b65b4f
powerpc/cpuidle: Add cpu_idle_wait() to allow switching of idle routines

This patch provides cpu_idle_wait() routine for the powerpc
platform which is required by the cpuidle subsystem. This
routine is required to change the idle handler on SMP systems.
The equivalent routine for x86 is in arch/x86/kernel/process.c
but the powerpc implementation is different.

cpuidle_disable variable is to enable/disable cpuidle
framework if power_save option is set during the boot
time.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com>
Signed-off-by: Arun R Bharadwaj <arun.r.bharadwaj@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/Kconfig
arch/powerpc/include/asm/processor.h
arch/powerpc/include/asm/system.h
arch/powerpc/kernel/idle.c