1 #ifndef _LINUX_PM_QOS_PARAMS_H
2 #define _LINUX_PM_QOS_PARAMS_H
3 /* interface for the pm_qos_power infrastructure of the linux kernel.
4  *
5  * Mark Gross <mgross@linux.intel.com>
6  */
7 #include <linux/plist.h>
8 #include <linux/notifier.h>
9 #include <linux/miscdevice.h>
10 
11 #define PM_QOS_RESERVED 0
12 #define PM_QOS_CPU_DMA_LATENCY 1
13 #define PM_QOS_NETWORK_LATENCY 2
14 #define PM_QOS_NETWORK_THROUGHPUT 3
15 
16 #define PM_QOS_NUM_CLASSES 4
17 #define PM_QOS_DEFAULT_VALUE -1
18 
19 struct pm_qos_request_list {
20 	struct plist_node list;
21 	int pm_qos_class;
22 };
23 
24 void pm_qos_add_request(struct pm_qos_request_list *l, int pm_qos_class, s32 value);
25 void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req,
26 		s32 new_value);
27 void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req);
28 
29 int pm_qos_request(int pm_qos_class);
30 int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier);
31 int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
32 int pm_qos_request_active(struct pm_qos_request_list *req);
33 
34 #endif
35