cpuidle: fix HP nx6125 regression
Fix for http://bugzilla.kernel.org/show_bug.cgi?id=9355
cpuidle always used to fallback to C2 if there is some bm activity while
entering C3. But, presence of C2 is not always guaranteed. Change cpuidle
algorithm to detect a safe_state to fallback in case of bm_activity and
use that state instead of C2.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 26d79f6..76411b1 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -78,7 +78,6 @@
struct acpi_processor_power {
struct cpuidle_device dev;
struct acpi_processor_cx *state;
- struct acpi_processor_cx *bm_state;
unsigned long bm_check_timestamp;
u32 default_state;
u32 bm_activity;
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 16a5154..c4e0016 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -92,6 +92,7 @@
struct kobject kobj;
struct completion kobj_unregister;
void *governor_data;
+ struct cpuidle_state *safe_state;
};
DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices);