cpuidle: Add a poll_idle method

Add a default poll idle state with 0 latency. Provides an option to users
to use poll_idle by using 0 as the latency requirement.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e6728bd61cc1..fd4265007053 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -105,6 +105,9 @@ config GENERIC_TIME_VSYSCALL
         bool
         default X86_64
 
+config ARCH_HAS_CPU_RELAX
+        def_bool y
+
 config HAVE_SETUP_PER_CPU_AREA
         def_bool X86_64