projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| e8db0be1 JP |
1 | #ifndef _LINUX_PM_QOS_H |
| 2 | #define _LINUX_PM_QOS_H | |
| d82b3518 MG |
3 | /* interface for the pm_qos_power infrastructure of the linux kernel. |
| 4 | * | |
| bf1db69f | 5 | * Mark Gross <mgross@linux.intel.com> |
| d82b3518 | 6 | */ |
| 82f68251 | 7 | #include <linux/plist.h> |
| d82b3518 MG |
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 | ||
| 333c5ae9 TC |
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 | ||
| 82f68251 JB |
23 | struct pm_qos_request_list { |
| 24 | struct plist_node list; | |
| 25 | int pm_qos_class; | |
| 26 | }; | |
| d82b3518 | 27 | |
| e8db0be1 JP |
28 | #ifdef CONFIG_PM |
| 29 | void pm_qos_add_request(struct pm_qos_request_list *l, | |
| 30 | int pm_qos_class, s32 value); | |
| ed77134b | 31 | void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, |
| e8db0be1 | 32 | s32 new_value); |
| ed77134b | 33 | void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req); |
| d82b3518 | 34 | |
| ed77134b MG |
35 | int pm_qos_request(int pm_qos_class); |
| 36 | int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier); | |
| 37 | int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier); | |
| 82f68251 | 38 | int pm_qos_request_active(struct pm_qos_request_list *req); |
| e8db0be1 JP |
39 | #else |
| 40 | static inline void pm_qos_add_request(struct pm_qos_request_list *l, | |
| 41 | int pm_qos_class, s32 value) | |
| 42 | { return; } | |
| 43 | static inline void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, | |
| 44 | s32 new_value) | |
| 45 | { return; } | |
| 46 | static inline void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req) | |
| 47 | { return; } | |
| 48 | ||
| 49 | static inline int pm_qos_request(int pm_qos_class) | |
| 50 | { return 0; } | |
| 51 | static inline int pm_qos_add_notifier(int pm_qos_class, | |
| 52 | struct notifier_block *notifier) | |
| 53 | { return 0; } | |
| 54 | static inline int pm_qos_remove_notifier(int pm_qos_class, | |
| 55 | struct notifier_block *notifier) | |
| 56 | { return 0; } | |
| 57 | static inline int pm_qos_request_active(struct pm_qos_request_list *req) | |
| 58 | { return 0; } | |
| 59 | #endif | |
| d82b3518 | 60 | |
| 82f68251 | 61 | #endif |