cat.h File Reference

#include <stdbool.h>
#include <tenstorrent/bh_arc.h>

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Macros
#define	T_J_SHUTDOWN   110 /* BH Prod Spec 7.3 */

Functions
int	StartGddrThermTripMonitor (void)
int	EvaluateGddrThermTrip (int64_t now, int max_temp, int trip_temp, int critical_temp, int64_t duration_ms)
	Evaluate the GDDR thermal-trip state machine for one sample against the supplied thresholds.
uint8_t	CatSetGddrThermTripEnabled (bool enabled)
	Enable or disable the GDDR thermal-trip action at runtime.

Macro Definition Documentation

T_J_SHUTDOWN

#define T_J_SHUTDOWN   110 /* BH Prod Spec 7.3 */

Function Documentation

CatSetGddrThermTripEnabled()

uint8_t CatSetGddrThermTripEnabled

(

bool

enabled

)

Enable or disable the GDDR thermal-trip action at runtime.

Parameters

enabled

false to disable, true to enable.

Returns

0 on success.

EvaluateGddrThermTrip()

int EvaluateGddrThermTrip	(	int64_t	now,
		int	max_temp,
		int	trip_temp,
		int	critical_temp,
		int64_t	duration_ms )

Evaluate the GDDR thermal-trip state machine for one sample against the supplied thresholds.

Production code uses the internal MonitorGddrThermTrip wrapper, which supplies the thresholds seeded from the firmware table at init.

Parameters

now	Current uptime in milliseconds.
max_temp	Highest observed GDDR temperature in degrees Celsius.
trip_temp	Sustained over-temp threshold in degrees Celsius.
critical_temp	Instantaneous (no-dwell) trip threshold in degrees Celsius.
duration_ms	Sustained dwell time before tripping, in milliseconds.

Returns

The tripping temperature (non-zero) when a trip fires, otherwise 0.

StartGddrThermTripMonitor()

int StartGddrThermTripMonitor

(

void

)