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PM QoS: Reorganize data structs

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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 <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Jean Pihet
2011-08-25 15:35:27 +02:00
committed by Rafael J. Wysocki
parent 4a31a33425
commit 4e1779baaa
2 changed files with 60 additions and 44 deletions
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19
include/linux/pm_qos.h
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@@ -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);