PM QoS: add a PM_QOS_DEVICE_THROUGHPUT class

This patch adds PM_QOS_DEVICE_THROUGHPUT class

Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
Conflicts:

	include/linux/pm_qos.h
	kernel/power/qos.c

Change-Id: Iad14795bdb3fc2d1f1f1d305756dda5fa33b79d4
Signed-off-by: Sungjinn Chung <sungjinn.chung@samsung.com>

diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 2a3acf4dba9ab73cad5b54fc8ebfbfb8d711dd87..19fc8521b23af640f5d589433f74cfe313b95eee 100644 (file)
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -14,6 +14,7 @@ enum {
        PM_QOS_RESERVED = 0,
        PM_QOS_CPU_DMA_LATENCY,
        PM_QOS_NETWORK_LATENCY,
+       PM_QOS_DEVICE_THROUGHPUT,
        PM_QOS_NETWORK_THROUGHPUT,
        PM_QOS_MEMORY_BANDWIDTH,
 
@@ -32,6 +33,7 @@ enum pm_qos_flags_status {
 
 #define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE       (2000 * USEC_PER_SEC)
 #define PM_QOS_NETWORK_LAT_DEFAULT_VALUE       (2000 * USEC_PER_SEC)
+#define PM_QOS_DEVICE_THROUGHPUT_DEFAULT_VALUE 0
 #define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE        0
 #define PM_QOS_MEMORY_BANDWIDTH_DEFAULT_VALUE  0
 #define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE    0

diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 97b0df71303ef7bbecf28d1479c3e198885b6199..3a805d6c98f89da55a9795ffdcd264a77bc1289a 100644 (file)
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -92,6 +92,19 @@ static struct pm_qos_object network_lat_pm_qos = {
 };
 
 
+static BLOCKING_NOTIFIER_HEAD(device_throughput_notifier);
+static struct pm_qos_constraints device_tput_constraints = {
+       .list = PLIST_HEAD_INIT(device_tput_constraints.list),
+       .target_value = PM_QOS_DEVICE_THROUGHPUT_DEFAULT_VALUE,
+       .default_value = PM_QOS_DEVICE_THROUGHPUT_DEFAULT_VALUE,
+       .type = PM_QOS_MAX,
+       .notifiers = &device_throughput_notifier,
+};
+static struct pm_qos_object device_throughput_pm_qos = {
+       .constraints = &device_tput_constraints,
+       .name = "device_throughput",
+};
+
 static BLOCKING_NOTIFIER_HEAD(network_throughput_notifier);
 static struct pm_qos_constraints network_tput_constraints = {
        .list = PLIST_HEAD_INIT(network_tput_constraints.list),
@@ -126,6 +139,7 @@ static struct pm_qos_object *pm_qos_array[] = {
        &null_pm_qos,
        &cpu_dma_pm_qos,
        &network_lat_pm_qos,
+       &device_throughput_pm_qos,
        &network_throughput_pm_qos,
        &memory_bandwidth_pm_qos,
 };