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authorDeepthi Dharwar <deepthi@linux.vnet.ibm.com>2011-11-30 02:47:03 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-12-08 13:57:34 +1100
commite8bb3e00cff93ef2a0cfc09c3294aa37b4737e09 (patch)
tree3d9e72c1a6f600c90a93213a7b450afed39ea789 /arch/powerpc/include
parente179816ce60033ce560b28e01bc555ed5116cbe9 (diff)
powerpc/cpuidle: Handle power_save=off
This patch makes pseries_idle_driver not to be registered when power_save=off kernel boot option is specified. The cpuidle_disable variable used here is similar to its usage on x86. If cpuidle_disable is set then sysfs entries for cpuidle framework are not created and the required drivers are not loaded. 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>
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/processor.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 811b7e74437..b585bff1a02 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -382,6 +382,7 @@ static inline unsigned long get_clean_sp(struct pt_regs *regs, int is_32)
}
#endif
+extern unsigned long cpuidle_disable;
enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF};
#endif /* __KERNEL__ */