vf_curve.c File Reference

#include <zephyr/sys/util.h>
#include "aiclk_ppm.h"
#include "vf_curve.h"
#include <zephyr/drivers/misc/bh_fwtable.h>
#include <tenstorrent/msgqueue.h>
#include <tenstorrent/smc_msg.h>

Macros
#define	FREQ_MARGIN_MAX   300.0F
#define	FREQ_MARGIN_MIN   -300.0F
#define	VOLTAGE_MARGIN_MAX   150.0F
#define	VOLTAGE_MARGIN_MIN   -150.0F

Functions
void	InitVFCurve (void)
float	VFCurve (float freq_mhz)
	Calculate the voltage based on the frequency.
static uint8_t	get_voltage_curve_from_freq_handler (const union request *request, struct response *response)
static uint8_t	get_freq_curve_from_voltage_handler (const union request *request, struct response *response)
	REGISTER_MESSAGE (TT_SMC_MSG_GET_VOLTAGE_CURVE_FROM_FREQ, get_voltage_curve_from_freq_handler)
	REGISTER_MESSAGE (TT_SMC_MSG_GET_FREQ_CURVE_FROM_VOLTAGE, get_freq_curve_from_voltage_handler)

Variables
static const float	vf_quadratic_coeff = 0.00031395F
static const float	vf_linear_coeff = -0.43953F
static const float	vf_constant = 828.83F
static float	freq_margin_mhz = 300.0F
static float	voltage_margin_mv = 150.0F
static const struct device *const	fwtable_dev = DEVICE_DT_GET(DT_NODELABEL(fwtable))

Macro Definition Documentation

FREQ_MARGIN_MAX

#define FREQ_MARGIN_MAX   300.0F

FREQ_MARGIN_MIN

#define FREQ_MARGIN_MIN   -300.0F

VOLTAGE_MARGIN_MAX

#define VOLTAGE_MARGIN_MAX   150.0F

VOLTAGE_MARGIN_MIN

#define VOLTAGE_MARGIN_MIN   -150.0F

Function Documentation

get_freq_curve_from_voltage_handler()

uint8_t get_freq_curve_from_voltage_handler ( const union request * request, struct response * response )

static

get_voltage_curve_from_freq_handler()

uint8_t get_voltage_curve_from_freq_handler ( const union request * request, struct response * response )

static

InitVFCurve()

void InitVFCurve

(

void

)

REGISTER_MESSAGE() [1/2]

REGISTER_MESSAGE	(	TT_SMC_MSG_GET_FREQ_CURVE_FROM_VOLTAGE	,
		get_freq_curve_from_voltage_handler	)

REGISTER_MESSAGE() [2/2]

REGISTER_MESSAGE	(	TT_SMC_MSG_GET_VOLTAGE_CURVE_FROM_FREQ	,
		get_voltage_curve_from_freq_handler	)

VFCurve()

float VFCurve

(

float

freq_mhz

)

Calculate the voltage based on the frequency.

Parameters

freq_mhz

The frequency in MHz

Returns

The voltage in mV

Variable Documentation

freq_margin_mhz

float freq_margin_mhz = 300.0F

static

fwtable_dev

const struct device* const fwtable_dev = DEVICE_DT_GET(DT_NODELABEL(fwtable))

static

vf_constant

const float vf_constant = 828.83F

static

vf_linear_coeff

const float vf_linear_coeff = -0.43953F

static

vf_quadratic_coeff

const float vf_quadratic_coeff = 0.00031395F

static

voltage_margin_mv

float voltage_margin_mv = 150.0F

static