Clock, Power and Performance Queries

Functions

Clock, Power and Performance Queries

Functions
rsmi_status_t	rsmi_dev_busy_percent_get (uint32_t dv_ind, uint32_t *busy_percent)
	Get percentage of time device is busy doing any processing. More...
rsmi_status_t	rsmi_utilization_count_get (uint32_t dv_ind, rsmi_utilization_counter_t utilization_counters[], uint32_t count, uint64_t *timestamp)
	Get coarse grain utilization counter of the specified device. More...
rsmi_status_t	rsmi_dev_perf_level_get (uint32_t dv_ind, rsmi_dev_perf_level_t *perf)
	Get the performance level of the device with provided device index. More...
rsmi_status_t	rsmi_perf_determinism_mode_set (uint32_t dv_ind, uint64_t clkvalue)
	Enter performance determinism mode with provided device index. More...
rsmi_status_t	rsmi_dev_overdrive_level_get (uint32_t dv_ind, uint32_t *od)
	Get the overdrive percent associated with the device with provided device index. More...
rsmi_status_t	rsmi_dev_mem_overdrive_level_get (uint32_t dv_ind, uint32_t *od)
	Get the memory clock overdrive percent associated with the device with provided device index. More...
rsmi_status_t	rsmi_dev_gpu_clk_freq_get (uint32_t dv_ind, rsmi_clk_type_t clk_type, rsmi_frequencies_t *f)
	Get the list of possible system clock speeds of device for a specified clock type. More...
rsmi_status_t	rsmi_dev_gpu_reset (int32_t dv_ind)
	Reset the gpu associated with the device with provided device index. More...
rsmi_status_t	rsmi_dev_od_volt_info_get (uint32_t dv_ind, rsmi_od_volt_freq_data_t *odv)
	This function retrieves the voltage/frequency curve information. More...
rsmi_status_t	rsmi_dev_gpu_metrics_info_get (uint32_t dv_ind, rsmi_gpu_metrics_t *pgpu_metrics)
	This function retrieves the gpu metrics information. More...
rsmi_status_t	rsmi_dev_clk_range_set (uint32_t dv_ind, uint64_t minclkvalue, uint64_t maxclkvalue, rsmi_clk_type_t clkType)
	This function sets the clock range information. More...
rsmi_status_t	rsmi_dev_od_clk_info_set (uint32_t dv_ind, rsmi_freq_ind_t level, uint64_t clkvalue, rsmi_clk_type_t clkType)
	This function sets the clock frequency information. More...
rsmi_status_t	rsmi_dev_od_volt_info_set (uint32_t dv_ind, uint32_t vpoint, uint64_t clkvalue, uint64_t voltvalue)
	This function sets 1 of the 3 voltage curve points. More...
rsmi_status_t	rsmi_dev_od_volt_curve_regions_get (uint32_t dv_ind, uint32_t *num_regions, rsmi_freq_volt_region_t *buffer)
	This function will retrieve the current valid regions in the frequency/voltage space. More...
rsmi_status_t	rsmi_dev_power_profile_presets_get (uint32_t dv_ind, uint32_t sensor_ind, rsmi_power_profile_status_t *status)
	Get the list of available preset power profiles and an indication of which profile is currently active. More...

Detailed Description

These functions provide information about clock frequencies and performance.

Function Documentation

◆ rsmi_dev_busy_percent_get()

rsmi_status_t rsmi_dev_busy_percent_get	(	uint32_t	dv_ind,
		uint32_t *	busy_percent
	)

Get percentage of time device is busy doing any processing.

Given a device index dv_ind, this function returns the percentage of time that the specified device is busy. The device is considered busy if any one or more of its sub-blocks are working, and idle if none of the sub-blocks are working.

Parameters

[in]	dv_ind	a device index
[in,out]	busy_percent	a pointer to the uint32_t to which the busy percent will be written If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_utilization_count_get()

rsmi_status_t rsmi_utilization_count_get	(	uint32_t	dv_ind,
		rsmi_utilization_counter_t	utilization_counters[],
		uint32_t	count,
		uint64_t *	timestamp
	)

Get coarse grain utilization counter of the specified device.

Given a device index dv_ind, the array of the utilization counters, the size of the array, this function returns the coarse grain utilization counters and timestamp. The counter is the accumulated percentages. Every milliseconds the firmware calculates % busy count and then accumulates that value in the counter. This provides minimally invasive coarse grain GPU usage information.

Parameters

[in]	dv_ind	a device index
[in,out]	utilization_counters	Multiple utilization counters can be retreived with a single call. The caller must allocate enough space to the utilization_counters array. The caller also needs to set valid RSMI_UTILIZATION_COUNTER_TYPE type for each element of the array. RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

If the function reutrns RSMI_STATUS_SUCCESS, the counter will be set in the value field of the rsmi_utilization_counter_t.

Parameters

[in]	count	The size of @utilization_counters array.
[in,out]	timestamp	The timestamp when the counter is retreived. Resolution: 1 ns.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_perf_level_get()

rsmi_status_t rsmi_dev_perf_level_get	(	uint32_t	dv_ind,
		rsmi_dev_perf_level_t *	perf
	)

Get the performance level of the device with provided device index.

Given a device index dv_ind and a pointer to a uint32_t perf, this function will write the rsmi_dev_perf_level_t to the uint32_t pointed to by perf

Parameters

[in]	dv_ind	a device index
[in,out]	perf	a pointer to rsmi_dev_perf_level_t to which the performance level will be written If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_perf_determinism_mode_set()

rsmi_status_t rsmi_perf_determinism_mode_set	(	uint32_t	dv_ind,
		uint64_t	clkvalue
	)

Enter performance determinism mode with provided device index.

Given a device index dv_ind and clkvalue this function will enable performance determinism mode, which enforces a GFXCLK frequency SoftMax limit per GPU set by the user. This prevents the GFXCLK PLL from stretching when running the same workload on different GPUS, making performance variation minimal. This call will result in the performance level rsmi_dev_perf_level_t of the device being RSMI_DEV_PERF_LEVEL_DETERMINISM.

Parameters

[in]	dv_ind	a device index
[in]	clkvalue	Softmax value for GFXCLK in MHz.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_overdrive_level_get()

rsmi_status_t rsmi_dev_overdrive_level_get	(	uint32_t	dv_ind,
		uint32_t *	od
	)

Get the overdrive percent associated with the device with provided device index.

Given a device index dv_ind and a pointer to a uint32_t od, this function will write the overdrive percentage to the uint32_t pointed to by od

Parameters

[in]	dv_ind	a device index
[in,out]	od	a pointer to uint32_t to which the overdrive percentage will be written If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_mem_overdrive_level_get()

rsmi_status_t rsmi_dev_mem_overdrive_level_get	(	uint32_t	dv_ind,
		uint32_t *	od
	)

Get the memory clock overdrive percent associated with the device with provided device index.

Given a device index dv_ind and a pointer to a uint32_t od, this function will write the memory overdrive percentage to the uint32_t pointed to by od

Parameters

[in]	dv_ind	a device index
[in,out]	od	a pointer to uint32_t to which the overdrive percentage will be written If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_gpu_clk_freq_get()

rsmi_status_t rsmi_dev_gpu_clk_freq_get	(	uint32_t	dv_ind,
		rsmi_clk_type_t	clk_type,
		rsmi_frequencies_t *	f
	)

Get the list of possible system clock speeds of device for a specified clock type.

Given a device index dv_ind, a clock type clk_type, and a pointer to a to an rsmi_frequencies_t structure f, this function will fill in f with the possible clock speeds, and indication of the current clock speed selection.

Parameters

[in]	dv_ind	a device index
[in]	clk_type	the type of clock for which the frequency is desired
[in,out]	f	a pointer to a caller provided rsmi_frequencies_t structure to which the frequency information will be written. Frequency values are in Hz. If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments. If multiple current frequencies are found, a warning is shown. If no current frequency is found, it is reflected as -1. If frequencies are not read from low to high a warning is shown as well.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_gpu_reset()

rsmi_status_t rsmi_dev_gpu_reset

(

int32_t

dv_ind

)

Reset the gpu associated with the device with provided device index.

Given a device index dv_ind, this function will reset the GPU

Parameters

[in]

dv_ind

a device index

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_od_volt_info_get()

rsmi_status_t rsmi_dev_od_volt_info_get	(	uint32_t	dv_ind,
		rsmi_od_volt_freq_data_t *	odv
	)

This function retrieves the voltage/frequency curve information.

Given a device index dv_ind and a pointer to a rsmi_od_volt_freq_data_t structure odv, this function will populate odv. See rsmi_od_volt_freq_data_t for more details.

Parameters

[in]	dv_ind	a device index
[in,out]	odv	a pointer to an rsmi_od_volt_freq_data_t structure If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_gpu_metrics_info_get()

rsmi_status_t rsmi_dev_gpu_metrics_info_get	(	uint32_t	dv_ind,
		rsmi_gpu_metrics_t *	pgpu_metrics
	)

This function retrieves the gpu metrics information.

Given a device index dv_ind and a pointer to a rsmi_gpu_metrics_t structure pgpu_metrics, this function will populate pgpu_metrics. See rsmi_gpu_metrics_t for more details.

Parameters

[in]	dv_ind	a device index
[in,out]	pgpu_metrics	a pointer to an rsmi_gpu_metrics_t structure If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_clk_range_set()

rsmi_status_t rsmi_dev_clk_range_set	(	uint32_t	dv_ind,
		uint64_t	minclkvalue,
		uint64_t	maxclkvalue,
		rsmi_clk_type_t	clkType
	)

This function sets the clock range information.

Given a device index dv_ind, a minimum clock value minclkvalue, a maximum clock value maxclkvalue and a clock type clkType this function will set the sclk|mclk range

Parameters

[in]	dv_ind	a device index
[in]	minclkvalue	value to apply to the clock range. Frequency values are in MHz.
[in]	maxclkvalue	value to apply to the clock range. Frequency values are in MHz.
[in]	clkType	RSMI_CLK_TYPE_SYS | RSMI_CLK_TYPE_MEM range type

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_od_clk_info_set()

rsmi_status_t rsmi_dev_od_clk_info_set	(	uint32_t	dv_ind,
		rsmi_freq_ind_t	level,
		uint64_t	clkvalue,
		rsmi_clk_type_t	clkType
	)

This function sets the clock frequency information.

Given a device index dv_ind, a frequency level level, a clock value clkvalue and a clock type clkType this function will set the sclk|mclk range

Parameters

[in]	dv_ind	a device index
[in]	level	RSMI_FREQ_IND_MIN|RSMI_FREQ_IND_MAX to set the minimum (0) or maximum (1) speed.
[in]	clkvalue	value to apply to the clock range. Frequency values are in MHz.
[in]	clkType	RSMI_CLK_TYPE_SYS | RSMI_CLK_TYPE_MEM range type

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_od_volt_info_set()

rsmi_status_t rsmi_dev_od_volt_info_set	(	uint32_t	dv_ind,
		uint32_t	vpoint,
		uint64_t	clkvalue,
		uint64_t	voltvalue
	)

This function sets 1 of the 3 voltage curve points.

Given a device index dv_ind, a voltage point vpoint and a voltage value voltvalue this function will set voltage curve point

Parameters

[in]	dv_ind	a device index
[in]	vpoint	voltage point [0|1|2] on the voltage curve
[in]	clkvalue	clock value component of voltage curve point. Frequency values are in MHz.
[in]	voltvalue	voltage value component of voltage curve point. Voltage is in mV.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_od_volt_curve_regions_get()

rsmi_status_t rsmi_dev_od_volt_curve_regions_get	(	uint32_t	dv_ind,
		uint32_t *	num_regions,
		rsmi_freq_volt_region_t *	buffer
	)

This function will retrieve the current valid regions in the frequency/voltage space.

Given a device index dv_ind, a pointer to an unsigned integer num_regions and a buffer of rsmi_freq_volt_region_t structures, buffer, this function will populate buffer with the current frequency-volt space regions. The caller should assign buffer to memory that can be written to by this function. The caller should also indicate the number of rsmi_freq_volt_region_t structures that can safely be written to buffer in num_regions.

The number of regions to expect this function provide (num_regions) can be obtained by calling rsmi_dev_od_volt_info_get().

Parameters

[in]	dv_ind	a device index
[in,out]	num_regions	As input, this is the number of rsmi_freq_volt_region_t structures that can be written to buffer. As output, this is the number of rsmi_freq_volt_region_t structures that were actually written. If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.
[in,out]	buffer	a caller provided buffer to which rsmi_freq_volt_region_t structures will be written If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid

◆ rsmi_dev_power_profile_presets_get()

rsmi_status_t rsmi_dev_power_profile_presets_get	(	uint32_t	dv_ind,
		uint32_t	sensor_ind,
		rsmi_power_profile_status_t *	status
	)

Get the list of available preset power profiles and an indication of which profile is currently active.

Given a device index dv_ind and a pointer to a rsmi_power_profile_status_t status, this function will set the bits of the rsmi_power_profile_status_t.available_profiles bit field of status to 1 if the profile corresponding to the respective rsmi_power_profile_preset_masks_t profiles are enabled. For example, if both the VIDEO and VR power profiles are available selections, then RSMI_PWR_PROF_PRST_VIDEO_MASK AND'ed with rsmi_power_profile_status_t.available_profiles will be non-zero as will RSMI_PWR_PROF_PRST_VR_MASK AND'ed with rsmi_power_profile_status_t.available_profiles. Additionally, rsmi_power_profile_status_t.current will be set to the rsmi_power_profile_preset_masks_t of the profile that is currently active.

Parameters

[in]	dv_ind	a device index
[in]	sensor_ind	a 0-based sensor index. Normally, this will be 0. If a device has more than one sensor, it could be greater than 0.
[in,out]	status	a pointer to rsmi_power_profile_status_t that will be populated by a call to this function If this parameter is nullptr, this function will return RSMI_STATUS_INVALID_ARGS if the function is supported with the provided, arguments and RSMI_STATUS_NOT_SUPPORTED if it is not supported with the provided arguments.

Return values

RSMI_STATUS_SUCCESS	call was successful
RSMI_STATUS_NOT_SUPPORTED	installed software or hardware does not support this function with the given arguments
RSMI_STATUS_INVALID_ARGS	the provided arguments are not valid