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| author |   Deepthi Dharwar <deepthi@linux.vnet.ibm.com> | 2011-11-30 02:46:31 +0000 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-12-08 13:54:58 +1100 |
| commit | 771dae81896855d25f7f8746aaf56c0238deafb6 (patch) | |
| tree | b1ddfa238260332dab446a5fa21db1f7ed0fb41b /arch/powerpc/include | |
| parent | Merge branch 'booke-hugetlb' into next (diff) | |
| download | linux-dev-771dae81896855d25f7f8746aaf56c0238deafb6.tar.xz linux-dev-771dae81896855d25f7f8746aaf56c0238deafb6.zip | |
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>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/system.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index eb11a446720e..811b7e744378 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -382,6 +382,8 @@ static inline unsigned long get_clean_sp(struct pt_regs *regs, int is_32) } #endif +enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF}; + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_PROCESSOR_H */ diff --git a/arch/powerpc/include/asm/system.h b/arch/powerpc/include/asm/system.h index e30a13d1ee76..ff6668038799 100644 --- a/arch/powerpc/include/asm/system.h +++ b/arch/powerpc/include/asm/system.h @@ -221,6 +221,7 @@ extern unsigned long klimit; extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); extern int powersave_nap; /* set if nap mode can be used in idle loop */ +void cpu_idle_wait(void); /* * Atomic exchange |