CSR driver APIs

CSR driver APIs. More...

Functions
static void	hpm_csr_enable_access_to_csr_cycle (void)
	Enable access to CSR_CYCLE and CSR_MCYCLEH. More...
static void	hpm_csr_disable_access_to_csr_cycle (void)
	Disable access to CSR_CYCLE and CSR_MCYCLEH. More...
static uint64_t	hpm_csr_get_core_cycle (void)
	Get the core cycle value. More...
static uint64_t	hpm_csr_get_core_mcycle (void)
	Get the core mcycle value. More...

Detailed Description

CSR driver APIs.

Function Documentation

hpm_csr_disable_access_to_csr_cycle()

static void hpm_csr_disable_access_to_csr_cycle ( void  )

inlinestatic

#include <drivers/inc/hpm_csr_drv.h>

Disable access to CSR_CYCLE and CSR_MCYCLEH.

Note

This Function can be called in Machine mode only

hpm_csr_enable_access_to_csr_cycle()

static void hpm_csr_enable_access_to_csr_cycle ( void  )

inlinestatic

#include <drivers/inc/hpm_csr_drv.h>

Enable access to CSR_CYCLE and CSR_MCYCLEH.

Note

This Function can be called in Machine mode only

hpm_csr_get_core_cycle()

static uint64_t hpm_csr_get_core_cycle ( void  )

inlinestatic

#include <drivers/inc/hpm_csr_drv.h>

Get the core cycle value.

Note

The CY bit in MCOUNTEREN must be enabled before using this API whendevice is :

• in supervisor mode if the device supports M/S/U mode, or
• in user mode if the device supports M/U mode

Returns

CSR cycle value in 64-bit

hpm_csr_get_core_mcycle()

static uint64_t hpm_csr_get_core_mcycle ( void  )

inlinestatic

#include <drivers/inc/hpm_csr_drv.h>

Get the core mcycle value.

Note

This function can be called in machine mode only

Returns

CSR mcycle value in 64-bit