diff options
| author | Kevin Hilman <khilman@mvista.com> | 2008-02-01 02:28:18 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-02-01 04:50:48 +0100 |
| commit | f757397097d0713c949af76dccabb65a2785782e (patch) | |
| tree | b2f3ee95ae2e3c501cb0e1c8b1fd236969d97044 | |
| parent | cpuidle: default processor.latency_factor=2 (diff) | |
| download | linux-f757397097d0713c949af76dccabb65a2785782e.tar.xz linux-f757397097d0713c949af76dccabb65a2785782e.zip | |
cpuidle: build fix for non-x86
Convert cpu_idle_wait() to cpuidle_kick_cpus() macro which is
SMP-only, and gives error on non supported CPU.
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | arch/x86/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 2 | ||||
| -rw-r--r-- | include/linux/cpuidle.h | 13 |
3 files changed, 17 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 368864dfe6eb..37d1297e6787 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -105,6 +105,9 @@ config ARCH_HAS_ILOG2_U32 config ARCH_HAS_ILOG2_U64 def_bool n +config ARCH_HAS_CPU_IDLE_WAIT + def_bool y + config GENERIC_CALIBRATE_DELAY def_bool y diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index d2fabe7863a9..794962d9f48b 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -82,7 +82,7 @@ void cpuidle_uninstall_idle_handler(void) { if (enabled_devices && (pm_idle != pm_idle_old)) { pm_idle = pm_idle_old; - cpu_idle_wait(); + cpuidle_kick_cpus(); } } diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 16a51546db44..cb95f5a9075a 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -72,6 +72,19 @@ cpuidle_set_statedata(struct cpuidle_state *state, void *data) state->driver_data = data; } +#ifdef CONFIG_SMP +#ifdef CONFIG_ARCH_HAS_CPU_IDLE_WAIT +static inline void cpuidle_kick_cpus(void) +{ + cpu_idle_wait(); +} +#else /* !CONFIG_ARCH_HAS_CPU_IDLE_WAIT */ +#error "Arch needs cpu_idle_wait() equivalent here" +#endif /* !CONFIG_ARCH_HAS_CPU_IDLE_WAIT */ +#else /* !CONFIG_SMP */ +static inline void cpuidle_kick_cpus(void) {} +#endif /* !CONFIG_SMP */ + struct cpuidle_state_kobj { struct cpuidle_state *state; struct completion kobj_unregister; |