msr_clocks.h File Reference

#include <stdint.h>
#include "master.h"

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Classes
struct	clock_mod
	Structure containing data for IA32_CLOCK_MODULATION. More...
struct	clocks_data
	Structure containing data for IA32_APERF, IA32_MPERF, and IA32_TIME_STAMP_COUNTER. More...
struct	perf_data
	Structure containing data for IA32_PERF_STATUS and IA32_PERF_CTL. More...

Functions
void	clocks_storage (struct clocks_data **cd)
	Allocate array for storing raw register data from IA32_APERF, IA32_MPERF, and IA32_TIME_STAMP_COUNTER.
void	perf_storage (struct perf_data **pd)
	Allocate array for storing raw register data from IA32_PERF_STATUS and IA32_PERF_CTL.
void	dump_clocks_data_terse_label (FILE *writedest)
	Print the label for the abbreviated clocks data print out.
void	dump_clocks_data_terse (FILE *writedest)
	Print abbreviated clocks data.
void	dump_p_state (FILE *writedest)
	Print current p-state.
void	set_p_state (unsigned socket, uint64_t pstate)
	Request new current p-state.
void	dump_clocks_data_readable (FILE *writedest)
	Print detailed clocks data.
void	dump_clock_mod (struct clock_mod *s, FILE *writedest)
	Print clock modulation data.
void	get_clock_mod (int socket, int core, struct clock_mod *s)
	Get contents of IA32_CLOCK_MODULATION.
int	set_clock_mod (int socket, int core, struct clock_mod *s)
	Change value of IA32_CLOCK_MODULATION.

Function Documentation

void clocks_storage

(

struct clocks_data **

cd

)

Allocate array for storing raw register data from IA32_APERF, IA32_MPERF, and IA32_TIME_STAMP_COUNTER.

There are plans to use a struct to make the indirection less crazy.

Parameters

[in]

cd

Pointer to clock-related data.

void dump_clock_mod	(	struct clock_mod *	s,
		FILE *	writedest
	)

Print clock modulation data.

Parameters

[in]	s	Data for clock modulation.
[in]	writedest	File stream where output will be written to.

void dump_clocks_data_readable

(

FILE *

writedest

)

Print detailed clocks data.

Parameters

[in]

writedest

File stream where output will be written to.

void dump_clocks_data_terse

(

FILE *

writedest

)

Print abbreviated clocks data.

Parameters

[in]

writedest

File stream where output will be written to.

void dump_clocks_data_terse_label

(

FILE *

writedest

)

Print the label for the abbreviated clocks data print out.

Parameters

[in]

writedest

File stream where output will be written to.

void dump_p_state

(

FILE *

writedest

)

Print current p-state.

Parameters

[in]

writedest

File stream where output will be written to.

void get_clock_mod	(	int	socket,
		int	core,
		struct clock_mod *	s
	)

Get contents of IA32_CLOCK_MODULATION.

Parameters

[in]	socket	Unique socket/package identifier.
[in]	core	Unique core identifier.
[out]	s	Data for clock modulation.

void perf_storage

(

struct perf_data **

pd

)

Allocate array for storing raw register data from IA32_PERF_STATUS and IA32_PERF_CTL.

Parameters

[in]

pd

Pointer to perf-related data.

int set_clock_mod	(	int	socket,
		int	core,
		struct clock_mod *	s
	)

Change value of IA32_CLOCK_MODULATION.

Parameters

[in]	socket	Unique socket/package identifier.
[in]	core	Unique core identifier.
[in]	s	Data for clock modulation.

void set_p_state	(	unsigned	socket,
		uint64_t	pstate
	)

Request new current p-state.

Parameters

[in]	socket	Unique socket/package identifier.
[in]	pstate	Desired p-state.