PM / QoS: Introcuce latency tolerance device PM QoS type

[mirror_ubuntu-artful-kernel.git] / include / linux / pm_qos.h

diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 2d8ce50877d81565ee8f6331a4c4ebc48f3eaa67..0b476019be5573dc52aef1888b543b275a6ad40c 100644 (file)
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -33,6 +33,9 @@ enum pm_qos_flags_status {
 #define PM_QOS_NETWORK_LAT_DEFAULT_VALUE       (2000 * USEC_PER_SEC)
 #define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE        0
 #define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE    0
+#define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0
+#define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1)
+#define PM_QOS_LATENCY_ANY                     ((s32)(~(__u32)0 >> 1))
 
 #define PM_QOS_FLAG_NO_POWER_OFF       (1 << 0)
 #define PM_QOS_FLAG_REMOTE_WAKEUP      (1 << 1)
@@ -50,6 +53,7 @@ struct pm_qos_flags_request {
 
 enum dev_pm_qos_req_type {
        DEV_PM_QOS_RESUME_LATENCY = 1,
+       DEV_PM_QOS_LATENCY_TOLERANCE,
        DEV_PM_QOS_FLAGS,
 };
 
@@ -89,8 +93,10 @@ struct pm_qos_flags {
 
 struct dev_pm_qos {
        struct pm_qos_constraints resume_latency;
+       struct pm_qos_constraints latency_tolerance;
        struct pm_qos_flags flags;
        struct dev_pm_qos_request *resume_latency_req;
+       struct dev_pm_qos_request *latency_tolerance_req;
        struct dev_pm_qos_request *flags_req;
 };
 
@@ -196,6 +202,8 @@ void dev_pm_qos_hide_latency_limit(struct device *dev);
 int dev_pm_qos_expose_flags(struct device *dev, s32 value);
 void dev_pm_qos_hide_flags(struct device *dev);
 int dev_pm_qos_update_flags(struct device *dev, s32 mask, bool set);
+s32 dev_pm_qos_get_user_latency_tolerance(struct device *dev);
+int dev_pm_qos_update_user_latency_tolerance(struct device *dev, s32 val);
 
 static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev)
 {
@@ -215,6 +223,10 @@ static inline int dev_pm_qos_expose_flags(struct device *dev, s32 value)
 static inline void dev_pm_qos_hide_flags(struct device *dev) {}
 static inline int dev_pm_qos_update_flags(struct device *dev, s32 m, bool set)
                        { return 0; }
+static inline s32 dev_pm_qos_get_user_latency_tolerance(struct device *dev)
+                       { return PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT; }
+static inline int dev_pm_qos_update_user_latency_tolerance(struct device *dev, s32 val)
+                       { return 0; }
 
 static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev) { return 0; }
 static inline s32 dev_pm_qos_requested_flags(struct device *dev) { return 0; }