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James Bottomley82f68252010-07-05 22:53:06 +02001#ifndef _LINUX_PM_QOS_PARAMS_H
2#define _LINUX_PM_QOS_PARAMS_H
Mark Grossd82b3512008-02-04 22:30:08 -08003/* interface for the pm_qos_power infrastructure of the linux kernel.
4 *
Richard Hughesbf1db692008-08-05 13:01:35 -07005 * Mark Gross <mgross@linux.intel.com>
Mark Grossd82b3512008-02-04 22:30:08 -08006 */
James Bottomley82f68252010-07-05 22:53:06 +02007#include <linux/plist.h>
Mark Grossd82b3512008-02-04 22:30:08 -08008#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
Tim Chen333c5ae2011-02-11 12:49:04 -080019#define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC)
20#define PM_QOS_NETWORK_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC)
21#define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0
22
James Bottomley82f68252010-07-05 22:53:06 +020023struct pm_qos_request_list {
24 struct plist_node list;
25 int pm_qos_class;
26};
Mark Grossd82b3512008-02-04 22:30:08 -080027
James Bottomley82f68252010-07-05 22:53:06 +020028void pm_qos_add_request(struct pm_qos_request_list *l, int pm_qos_class, s32 value);
Mark Grossed771342010-05-06 01:59:26 +020029void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req,
30 s32 new_value);
31void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req);
Mark Grossd82b3512008-02-04 22:30:08 -080032
Mark Grossed771342010-05-06 01:59:26 +020033int pm_qos_request(int pm_qos_class);
34int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier);
35int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
James Bottomley82f68252010-07-05 22:53:06 +020036int pm_qos_request_active(struct pm_qos_request_list *req);
Mark Grossd82b3512008-02-04 22:30:08 -080037
James Bottomley82f68252010-07-05 22:53:06 +020038#endif