Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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#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
23struct pm_qos_request_list {
24 struct plist_node list;
25 int pm_qos_class;
26};
27
28void pm_qos_add_request(struct pm_qos_request_list *l, int pm_qos_class, s32 value);
29void 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);
32
33int 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);
36int pm_qos_request_active(struct pm_qos_request_list *req);
37
38#endif