From 4e1779baaa542c83b459b0a56585e0c1a04c7782 Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Thu, 25 Aug 2011 15:35:27 +0200 Subject: PM QoS: Reorganize data structs In preparation for the per-device constratins support, re-organize the data strctures: - add a struct pm_qos_constraints which contains the constraints related data - update struct pm_qos_object contents to the PM QoS internal object data. Add a pointer to struct pm_qos_constraints - update the internal code to use the new data structs. Signed-off-by: Jean Pihet Reviewed-by: Kevin Hilman Signed-off-by: Rafael J. Wysocki --- include/linux/pm_qos.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include/linux/pm_qos.h') diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h index 6b0968f8bc6e..97723113ae92 100644 --- a/include/linux/pm_qos.h +++ b/include/linux/pm_qos.h @@ -25,6 +25,25 @@ struct pm_qos_request { int pm_qos_class; }; +enum pm_qos_type { + PM_QOS_UNITIALIZED, + PM_QOS_MAX, /* return the largest value */ + PM_QOS_MIN /* return the smallest value */ +}; + +/* + * Note: The lockless read path depends on the CPU accessing + * target_value atomically. Atomic access is only guaranteed on all CPU + * types linux supports for 32 bit quantites + */ +struct pm_qos_constraints { + struct plist_head list; + s32 target_value; /* Do not change to 64 bit */ + s32 default_value; + enum pm_qos_type type; + struct blocking_notifier_head *notifiers; +}; + #ifdef CONFIG_PM void pm_qos_add_request(struct pm_qos_request *req, int pm_qos_class, s32 value); -- cgit v1.2.2