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| author | Jean Pihet <j-pihet@ti.com> | 2011-08-25 15:35:03 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-08-25 15:35:03 +0200 |
| commit | e8db0be1245de16a6cc6365506abc392c3c212d4 (patch) | |
| tree | 01cf446568080c06c8797262554f3b0f758ae137 /include/linux/pm_qos.h | |
| parent | b5e8d269d814763d597ccc0108d1fa6639ad35a1 (diff) | |
| download | op-kernel-dev-e8db0be1245de16a6cc6365506abc392c3c212d4.zip op-kernel-dev-e8db0be1245de16a6cc6365506abc392c3c212d4.tar.gz | |
PM QoS: Move and rename the implementation files
The PM QoS implementation files are better named
kernel/power/qos.c and include/linux/pm_qos.h.
The PM QoS support is compiled under the CONFIG_PM option.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Acked-by: markgross <markgross@thegnar.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/linux/pm_qos.h')
| -rw-r--r-- | include/linux/pm_qos.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h new file mode 100644 index 0000000..7ba67541 --- /dev/null +++ b/include/linux/pm_qos.h @@ -0,0 +1,61 @@ +#ifndef _LINUX_PM_QOS_H +#define _LINUX_PM_QOS_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; +}; + +#ifdef CONFIG_PM +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); +#else +static inline void pm_qos_add_request(struct pm_qos_request_list *l, + int pm_qos_class, s32 value) + { return; } +static inline void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, + s32 new_value) + { return; } +static inline void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req) + { return; } + +static inline int pm_qos_request(int pm_qos_class) + { return 0; } +static inline int pm_qos_add_notifier(int pm_qos_class, + struct notifier_block *notifier) + { return 0; } +static inline int pm_qos_remove_notifier(int pm_qos_class, + struct notifier_block *notifier) + { return 0; } +static inline int pm_qos_request_active(struct pm_qos_request_list *req) + { return 0; } +#endif + +#endif |
