hwsampler.h File Reference

#include <linux/workqueue.h>

Go to the source code of this file.

Data Structures
struct	hws_qsi_info_block
struct	hws_ssctl_request_block
struct	hws_cpu_buffer
struct	hws_data_entry
struct	hws_trailer_entry

Functions
int	hwsampler_setup (void)
int	hwsampler_shutdown (void)
int	hwsampler_allocate (unsigned long sdbt, unsigned long sdb)
int	hwsampler_deallocate (void)
unsigned long	hwsampler_query_min_interval (void)
unsigned long	hwsampler_query_max_interval (void)
int	hwsampler_start_all (unsigned long interval)
int	hwsampler_stop_all (void)
int	hwsampler_deactivate (unsigned int cpu)
int	hwsampler_activate (unsigned int cpu)
unsigned long	hwsampler_get_sample_overflow_count (unsigned int cpu)

Function Documentation

int hwsampler_activate

(

unsigned int

cpu

)

hwsampler_activate() - activate/resume hardware sampling which was deactivated : specifies the CPU to be set active.

Returns 0 on success, !0 on failure.

Definition at line 648 of file hwsampler.c.

int hwsampler_allocate	(	unsigned long	sdbt,
		unsigned long	sdb
	)

hwsampler_allocate() - allocate memory for the hardware sampler : number of SDBTs per online CPU (must be > 0) : number of SDBs per SDBT (minimum 1, maximum 511)

Returns 0 on success, !0 on failure.

Definition at line 945 of file hwsampler.c.

int hwsampler_deactivate

(

unsigned int

cpu

)

hwsampler_deactivate() - set hardware sampling temporarily inactive : specifies the CPU to be set inactive.

Returns 0 on success, !0 on failure.

Definition at line 601 of file hwsampler.c.

int hwsampler_deallocate

(

void

)

hwsampler_deallocate() - deallocate hardware sampler memory

Returns 0 on success, !0 on failure.

Definition at line 994 of file hwsampler.c.

unsigned long hwsampler_get_sample_overflow_count

(

unsigned int

cpu

)

Definition at line 1026 of file hwsampler.c.

unsigned long hwsampler_query_max_interval

(

void

)

Definition at line 1021 of file hwsampler.c.

unsigned long hwsampler_query_min_interval

(

void

)

Definition at line 1016 of file hwsampler.c.

int hwsampler_setup

(

void

)

Definition at line 1035 of file hwsampler.c.

int hwsampler_shutdown

(

void

)

Definition at line 1102 of file hwsampler.c.

int hwsampler_start_all

(

unsigned long

rate

)

hwsampler_start_all() - start hardware sampling on all online CPUs : specifies the used interval when samples are taken

Returns 0 on success, !0 on failure.

Definition at line 1143 of file hwsampler.c.

int hwsampler_stop_all

(

void

)

hwsampler_stop_all() - stop hardware sampling on all online CPUs

Returns 0 on success, !0 on failure.

Definition at line 1203 of file hwsampler.c.