bh_power.c File Reference

#include <tenstorrent/bh_power.h>
#include <tenstorrent/smc_msg.h>
#include <tenstorrent/msgqueue.h>
#include <zephyr/logging/log.h>
#include <zephyr/drivers/clock_control.h>
#include <zephyr/drivers/clock_control/clock_control_tt_bh.h>
#include <zephyr/kernel.h>
#include <zephyr/sys/__assert.h>
#include "noc_init.h"
#include "aiclk_ppm.h"
#include "gddr.h"
#include "bh_reset.h"

Functions
	LOG_MODULE_REGISTER (power, CONFIG_TT_APP_LOG_LEVEL)
int32_t	bh_set_l2cpu_enable (bool enable)
int	bh_power_state_get (enum bh_power_domain domain, bool *state)
	Returns the power state of the specified domain.
static int32_t	apply_power_settings (const struct power_setting_rqst *power_setting)
static uint8_t	power_setting_msg_handler (const union request *request, struct response *response)
	Handles the request to set the power settings.
	REGISTER_MESSAGE (TT_SMC_MSG_POWER_SETTING, power_setting_msg_handler)

Variables
static const struct device *	pll4 = DEVICE_DT_GET_OR_NULL(DT_NODELABEL(pll4))
static bool	power_state [BH_POWER_DOMAIN_COUNT]

Function Documentation

apply_power_settings()

int32_t apply_power_settings ( const struct power_setting_rqst * power_setting )

static

bh_power_state_get()

int bh_power_state_get	(	enum bh_power_domain	domain,
		bool *	state )

Returns the power state of the specified domain.

Parameters

[out]

state

True if power state is high (busy for AICLK), false if power state is low (idle for AICLK)

Return values

0	On success
-EINVAL	If domain is invalid

bh_set_l2cpu_enable()

int32_t bh_set_l2cpu_enable

(

bool

enable

)

LOG_MODULE_REGISTER()

LOG_MODULE_REGISTER	(	power	,
		CONFIG_TT_APP_LOG_LEVEL	)

power_setting_msg_handler()

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

static

Handles the request to set the power settings.

Parameters

[in]	request	The request, of type power_setting_rqst, with command code TT_SMC_MSG_POWER_SETTING
[out]	response	The response to the host

Returns

0 for success. 1 for Failure.

REGISTER_MESSAGE()

REGISTER_MESSAGE	(	TT_SMC_MSG_POWER_SETTING	,
		power_setting_msg_handler	)

Variable Documentation

pll4

const struct device* pll4 = DEVICE_DT_GET_OR_NULL(DT_NODELABEL(pll4))

static

power_state

bool power_state[BH_POWER_DOMAIN_COUNT]

static

Initial value:

= {
        [BH_POWER_DOMAIN_AICLK] = false,
        [BH_POWER_DOMAIN_MRISC] = true,
        [BH_POWER_DOMAIN_TENSIX] = true,
        [BH_POWER_DOMAIN_L2CPU] = true,
}