PM QoS: Modify the aggregate value of memory throughput constraint class

This patch modifies the memory throughput constraint
class to give the aggregate value as the sum of all
the bandwidth requests. Earlier it was the maximum
value.

Signed-off-by: Deepthy Ravi <deepthy.ravi@ti.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 4f163fae510c..336a251340d0 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -91,7 +91,7 @@ static struct pm_qos_constraints memory_tput_constraints = {
 	.list = PLIST_HEAD_INIT(memory_tput_constraints.list),
 	.target_value = PM_QOS_MEMORY_THROUGHPUT_DEFAULT_VALUE,
 	.default_value = PM_QOS_MEMORY_THROUGHPUT_DEFAULT_VALUE,
-	.type = PM_QOS_MAX,
+	.type = PM_QOS_ADD,
 	.notifiers = &memory_throughput_notifier,
 };
 static struct pm_qos_object memory_throughput_pm_qos = {
@@ -139,6 +139,9 @@ static const struct file_operations pm_qos_power_fops = {
 /* unlocked internal variant */
 static inline int pm_qos_get_value(struct pm_qos_constraints *c)
 {
+	int sum = 0;
+	struct pm_qos_request *req;
+
 	if (plist_head_empty(&c->list))
 		return c->default_value;
 
@@ -149,6 +152,10 @@ static inline int pm_qos_get_value(struct pm_qos_constraints *c)
 	case PM_QOS_MAX:
 		return plist_last(&c->list)->prio;
 
+	case PM_QOS_ADD:
+		plist_for_each_entry(req, &c->list, node)
+			sum += (req->node).prio;
+		return sum;
 	default:
 		/* runtime check for not using enum */
 		BUG();