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| author |   Len Brown <len.brown@intel.com> | 2011-04-01 18:13:10 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-08-03 19:06:36 -0400 |
| commit | 62027aea23fcd14478abdddd3b74a4e0f5fb2984 (patch) | |
| tree | 1aaa5c1872e296f3448ae6c126175ac9d998e3b4 /drivers/cpuidle/cpuidle.h | |
| parent | mrst_pmu: driver for Intel Moorestown Power Management Unit (diff) | |
| download | linux-dev-62027aea23fcd14478abdddd3b74a4e0f5fb2984.tar.xz linux-dev-62027aea23fcd14478abdddd3b74a4e0f5fb2984.zip | |
cpuidle: create bootparam "cpuidle.off=1"
useful for disabling cpuidle to fall back
to architecture-default idle loop
cpuidle drivers and governors will fail to register.
on x86 they'll say so:
intel_idle: intel_idle yielding to (null)
ACPI: acpi_idle yielding to (null)
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/cpuidle/cpuidle.h')
| -rw-r--r-- | drivers/cpuidle/cpuidle.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpuidle/cpuidle.h b/drivers/cpuidle/cpuidle.h index 33e50d556f17..38c3fd8b9d76 100644 --- a/drivers/cpuidle/cpuidle.h +++ b/drivers/cpuidle/cpuidle.h @@ -13,6 +13,7 @@ extern struct list_head cpuidle_governors; extern struct list_head cpuidle_detected_devices; extern struct mutex cpuidle_lock; extern spinlock_t cpuidle_driver_lock; +extern int cpuidle_disabled(void); /* idle loop */ extern void cpuidle_install_idle_handler(void); |