James Bottomley | 82f6825 | 2010-07-05 22:53:06 +0200 | [diff] [blame] | 1 | #ifndef _LINUX_PM_QOS_PARAMS_H |
| 2 | #define _LINUX_PM_QOS_PARAMS_H |
Mark Gross | d82b351 | 2008-02-04 22:30:08 -0800 | [diff] [blame] | 3 | /* interface for the pm_qos_power infrastructure of the linux kernel. |
| 4 | * |
Richard Hughes | bf1db69 | 2008-08-05 13:01:35 -0700 | [diff] [blame] | 5 | * Mark Gross <mgross@linux.intel.com> |
Mark Gross | d82b351 | 2008-02-04 22:30:08 -0800 | [diff] [blame] | 6 | */ |
James Bottomley | 82f6825 | 2010-07-05 22:53:06 +0200 | [diff] [blame] | 7 | #include <linux/plist.h> |
Mark Gross | d82b351 | 2008-02-04 22:30:08 -0800 | [diff] [blame] | 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 | |
Tim Chen | 333c5ae | 2011-02-11 12:49:04 -0800 | [diff] [blame] | 19 | #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 Bottomley | 82f6825 | 2010-07-05 22:53:06 +0200 | [diff] [blame] | 23 | struct pm_qos_request_list { |
| 24 | struct plist_node list; |
| 25 | int pm_qos_class; |
| 26 | }; |
Mark Gross | d82b351 | 2008-02-04 22:30:08 -0800 | [diff] [blame] | 27 | |
James Bottomley | 82f6825 | 2010-07-05 22:53:06 +0200 | [diff] [blame] | 28 | void pm_qos_add_request(struct pm_qos_request_list *l, int pm_qos_class, s32 value); |
Mark Gross | ed77134 | 2010-05-06 01:59:26 +0200 | [diff] [blame] | 29 | void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, |
| 30 | s32 new_value); |
| 31 | void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req); |
Mark Gross | d82b351 | 2008-02-04 22:30:08 -0800 | [diff] [blame] | 32 | |
Mark Gross | ed77134 | 2010-05-06 01:59:26 +0200 | [diff] [blame] | 33 | int pm_qos_request(int pm_qos_class); |
| 34 | int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier); |
| 35 | int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier); |
James Bottomley | 82f6825 | 2010-07-05 22:53:06 +0200 | [diff] [blame] | 36 | int pm_qos_request_active(struct pm_qos_request_list *req); |
Mark Gross | d82b351 | 2008-02-04 22:30:08 -0800 | [diff] [blame] | 37 | |
James Bottomley | 82f6825 | 2010-07-05 22:53:06 +0200 | [diff] [blame] | 38 | #endif |