cpuidle: upon BIOS bug, default to default_idle rather than polling
http://bugzilla.kernel.org/show_bug.cgi?id=11345
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ed92864..f8caf04 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -123,6 +123,9 @@
config ARCH_HAS_CPU_RELAX
def_bool y
+config ARCH_HAS_DEFAULT_IDLE
+ def_bool y
+
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index eb2cade..bb6e3b3 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -56,7 +56,11 @@
if (pm_idle_old)
pm_idle_old();
else
+#if defined(CONFIG_ARCH_HAS_DEFAULT_IDLE)
+ default_idle();
+#else
local_irq_enable();
+#endif
return;
}