diff options
Diffstat (limited to 'include/linux/pm_qos_params.h')
| -rw-r--r-- | include/linux/pm_qos_params.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/pm_qos_params.h b/include/linux/pm_qos_params.h new file mode 100644 index 00000000..a7d87f91 --- /dev/null +++ b/include/linux/pm_qos_params.h @@ -0,0 +1,38 @@ +#ifndef _LINUX_PM_QOS_PARAMS_H +#define _LINUX_PM_QOS_PARAMS_H +/* interface for the pm_qos_power infrastructure of the linux kernel. + * + * Mark Gross <mgross@linux.intel.com> + */ +#include <linux/plist.h> +#include <linux/notifier.h> +#include <linux/miscdevice.h> + +#define PM_QOS_RESERVED 0 +#define PM_QOS_CPU_DMA_LATENCY 1 +#define PM_QOS_NETWORK_LATENCY 2 +#define PM_QOS_NETWORK_THROUGHPUT 3 + +#define PM_QOS_NUM_CLASSES 4 +#define PM_QOS_DEFAULT_VALUE -1 + +#define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) +#define PM_QOS_NETWORK_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) +#define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0 + +struct pm_qos_request_list { + struct plist_node list; + int pm_qos_class; +}; + +void pm_qos_add_request(struct pm_qos_request_list *l, int pm_qos_class, s32 value); +void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, + s32 new_value); +void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req); + +int pm_qos_request(int pm_qos_class); +int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier); +int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier); +int pm_qos_request_active(struct pm_qos_request_list *req); + +#endif |