Pstate selection

Functions

Pstate selection

Functions
amdsmi_status_t	amdsmi_cpu_apb_enable (amdsmi_processor_handle processor_handle)
	Enable APB. More...
amdsmi_status_t	amdsmi_cpu_apb_disable (amdsmi_processor_handle processor_handle, uint8_t pstate)
	Disable APB. More...
amdsmi_status_t	amdsmi_set_cpu_socket_lclk_dpm_level (amdsmi_processor_handle processor_handle, uint8_t nbio_id, uint8_t min, uint8_t max)
	Set NBIO lclk dpm level value. More...
amdsmi_status_t	amdsmi_get_cpu_socket_lclk_dpm_level (amdsmi_processor_handle processor_handle, uint8_t nbio_id, amdsmi_dpm_level_t *nbio)
	Get NBIO LCLK dpm level. More...
amdsmi_status_t	amdsmi_set_cpu_pcie_link_rate (amdsmi_processor_handle processor_handle, uint8_t rate_ctrl, uint8_t *prev_mode)
	Set pcie link rate. More...
amdsmi_status_t	amdsmi_set_cpu_df_pstate_range (amdsmi_processor_handle processor_handle, uint8_t max_pstate, uint8_t min_pstate)
	Set df pstate range. More...

Detailed Description

Function Documentation

◆ amdsmi_cpu_apb_enable()

amdsmi_status_t amdsmi_cpu_apb_enable

(

amdsmi_processor_handle

processor_handle

)

Enable APB.

Platform:

cpu_bm

Parameters

[in]

processor_handle

Cpu socket which to query

Returns

amdsmi_status_t | AMDSMI_STATUS_SUCCESS on success, non-zero on fail

◆ amdsmi_cpu_apb_disable()

amdsmi_status_t amdsmi_cpu_apb_disable	(	amdsmi_processor_handle	processor_handle,
		uint8_t	pstate
	)

Disable APB.

Platform:

cpu_bm

Parameters

[in]	processor_handle	Cpu socket which to query
[in]	pstate	- pstate value to be set

Returns

amdsmi_status_t | AMDSMI_STATUS_SUCCESS on success, non-zero on fail

◆ amdsmi_set_cpu_socket_lclk_dpm_level()

amdsmi_status_t amdsmi_set_cpu_socket_lclk_dpm_level	(	amdsmi_processor_handle	processor_handle,
		uint8_t	nbio_id,
		uint8_t	min,
		uint8_t	max
	)

Set NBIO lclk dpm level value.

Platform:

cpu_bm

Parameters

[in]	processor_handle	Cpu socket which to query
[in]	nbio_id	- nbio index
[in]	min	- minimum value to be set
[in]	max	- maximum value to be set

Returns

amdsmi_status_t | AMDSMI_STATUS_SUCCESS on success, non-zero on fail

◆ amdsmi_get_cpu_socket_lclk_dpm_level()

amdsmi_status_t amdsmi_get_cpu_socket_lclk_dpm_level	(	amdsmi_processor_handle	processor_handle,
		uint8_t	nbio_id,
		amdsmi_dpm_level_t *	nbio
	)

Get NBIO LCLK dpm level.

Platform:

cpu_bm

Parameters

[in]	processor_handle	Cpu socket which to query
[in]	nbio_id	- nbio index
[in,out]	nbio	- Input buffer to fill lclk dpm level

Returns

amdsmi_status_t | AMDSMI_STATUS_SUCCESS on success, non-zero on fail

◆ amdsmi_set_cpu_pcie_link_rate()

amdsmi_status_t amdsmi_set_cpu_pcie_link_rate	(	amdsmi_processor_handle	processor_handle,
		uint8_t	rate_ctrl,
		uint8_t *	prev_mode
	)

Set pcie link rate.

Platform:

cpu_bm

Parameters

[in]	processor_handle	Cpu socket which to query
[in]	rate_ctrl	- rate control value to be set.
[in,out]	prev_mode	- Input buffer to fill previous rate control value.

Returns

amdsmi_status_t | AMDSMI_STATUS_SUCCESS on success, non-zero on fail

◆ amdsmi_set_cpu_df_pstate_range()

amdsmi_status_t amdsmi_set_cpu_df_pstate_range	(	amdsmi_processor_handle	processor_handle,
		uint8_t	max_pstate,
		uint8_t	min_pstate
	)

Set df pstate range.

Platform:

cpu_bm

Parameters

[in]	processor_handle	Cpu socket which to query
[in]	max_pstate	- maximum pstate value to be set
[in]	min_pstate	- minimum pstate value to be set

Returns

amdsmi_status_t | AMDSMI_STATUS_SUCCESS on success, non-zero on fail