hpm_pmp_drv.c File Reference

#include "hpm_pmp_drv.h"
#include "hpm_csr_drv.h"

Macros
#define	PMP_ENTRY_MAX   16
#define	PMA_ENTRY_MAX   16

Functions
uint32_t	read_pmp_cfg (uint32_t idx)
	Read PMP configuration. More...
void	write_pmp_cfg (uint32_t value, uint32_t idx)
	Write PMP Configuration to corresponding PMP_CFG register. More...
void	write_pmp_addr (uint32_t value, uint32_t idx)
	Write PMP address to corresponding PMP_ADDR register. More...
uint32_t	read_pmp_addr (uint32_t idx)
	Read PMP address entry. More...
hpm_stat_t	pmp_config_attributes (const pmp_attr_t *attrs, uint32_t num_of_entries)
	Configure PMP Attributes (including PMPi_CFG and PMPADDRi) More...
hpm_stat_t	pmp_lock_pmp_entry (uint32_t pmp_index)
	Lock the specified PMP entry. More...
uint32_t	read_pma_cfg (uint32_t idx)
	Read PMA configuration. More...
void	write_pma_cfg (uint32_t value, uint32_t idx)
	Write PMA Configuration to corresponding PMA_CFG register. More...
void	write_pma_addr (uint32_t value, uint32_t idx)
	Write PMA address to corresponding PMA_ADDR register. More...
uint32_t	read_pma_addr (uint32_t idx)
	Read PMA address entry. More...
hpm_stat_t	pma_config_attributes (const pma_attr_t *attrs, uint32_t num_of_entries)
	Configure PMA Attributes (including PMAiCFG and PMAADDRi) More...
hpm_stat_t	pmp_config_entry (const pmp_entry_t *entry, uint32_t entry_index)
	Configure PMP and PMA for specified PMP/PMA entry. More...
hpm_stat_t	pmp_config (const pmp_entry_t *entry, uint32_t num_of_entries)
	Configure PMP and PMA based on the PMP entry list. More...
void	pmp_disable (void)
	Disable PMP and PMA. More...
uint32_t	pmp_get_aligned_len (uint32_t len)
	Get the aligned length of the PMP/PMA entry, the length is round up to next power of 2. More...

Macro Definition Documentation

PMA_ENTRY_MAX

#define PMA_ENTRY_MAX   16

PMP_ENTRY_MAX

#define PMP_ENTRY_MAX   16

Function Documentation

pma_config_attributes()

hpm_stat_t pma_config_attributes	(	const pma_attr_t *	attrs,
		uint32_t	num_of_entries
	)

Configure PMA Attributes (including PMAiCFG and PMAADDRi)

Parameters

attrs	pointer to the array of PMA attributes
num_of_entries	Number of entries in PMA attribute array

Return values

status_success	if no errors happened
status_invalid_argument	Invalid argument(s) detected

pmp_config()

hpm_stat_t pmp_config	(	const pmp_entry_t *	entry,
		uint32_t	num_of_entries
	)

Configure PMP and PMA based on the PMP entry list.

Deprecated:

This API will be dropped in future release, please use the pmp_config_attributes and pma_config_attributes instead

Parameters

entry	start of the PMP entry list
num_of_entries	Number of entries in the PMP entry list

Return values

status_invalid_argument	Invalid Arguments were detected
status_success	Configuration completed without errors

pmp_config_attributes()

hpm_stat_t pmp_config_attributes	(	const pmp_attr_t *	attrs,
		uint32_t	num_of_entries
	)

Configure PMP Attributes (including PMPi_CFG and PMPADDRi)

Parameters

[in]	attrs	pointer to the array of PMP attributes
[in]	num_of_entries	Number of entries in PMP attribute array

Return values

status_success	if no errors happened
status_invalid_argument	Invalid argument(s) detected

pmp_config_entry()

hpm_stat_t pmp_config_entry	(	const pmp_entry_t *	entry,
		uint32_t	entry_index
	)

Configure PMP and PMA for specified PMP/PMA entry.

Deprecated:

This API will be dropped in future release, please use the pmp_config_attributes and pma_config_attributes instead

Parameters

[in]	entry	PMP entry
[in]	entry_index	PMP/PMA entry index

Return values

status_invalid_argument	Invalid Arguments were detected
status_success	Configuration completed without errors

pmp_disable()

void pmp_disable

(

void

)

Disable PMP and PMA.

pmp_get_aligned_len()

uint32_t pmp_get_aligned_len

(

uint32_t

len

)

Get the aligned length of the PMP/PMA entry, the length is round up to next power of 2.

Parameters

[in]

len

The length of the PMP/PMA entry

Returns

The aligned length of the PMP/PMA entry

pmp_lock_pmp_entry()

hpm_stat_t pmp_lock_pmp_entry

(

uint32_t

pmp_index

)

Lock the specified PMP entry.

Note

Once the PMP entry is locked, it cannot be modified until system reset

Parameters

[in]

pmp_index

PMP index

Return values

status_success	No error happened
status_fail	PMP entry has been locked already
status_invalid_argument	the pmp_index is out of range

read_pma_addr()

uint32_t read_pma_addr

(

uint32_t

idx

)

Read PMA address entry.

Parameters

[in]

idx

PMA address entry index, valid value is 0-15

Returns

PMA address

read_pma_cfg()

uint32_t read_pma_cfg

(

uint32_t

idx

)

Read PMA configuration.

Parameters

[in]

idx

PMA entry index

Returns

PMA configuration

read_pmp_addr()

uint32_t read_pmp_addr

(

uint32_t

idx

)

Read PMP address entry.

Parameters

[in]

idx

PMP address entry index

Returns

PMP address

read_pmp_cfg()

uint32_t read_pmp_cfg

(

uint32_t

idx

)

Read PMP configuration.

Parameters

[in]

idx

PMP entry index

Returns

PMP configuration

write_pma_addr()

void write_pma_addr	(	uint32_t	value,
		uint32_t	idx
	)

Write PMA address to corresponding PMA_ADDR register.

Parameters

[in]	value	PMA address
[in]	idx	PMA address entry index, valid value is 0-15

write_pma_cfg()

void write_pma_cfg	(	uint32_t	value,
		uint32_t	idx
	)

Write PMA Configuration to corresponding PMA_CFG register.

Parameters

[in]	value	PMA configuration
[in]	idx	PMA entry index, valid value is 0-15

write_pmp_addr()

void write_pmp_addr	(	uint32_t	value,
		uint32_t	idx
	)

Write PMP address to corresponding PMP_ADDR register.

Parameters

[in]	value	PMP address
[in]	idx	PMP address entry index, valid value is 0-15

write_pmp_cfg()

void write_pmp_cfg	(	uint32_t	value,
		uint32_t	idx
	)

Write PMP Configuration to corresponding PMP_CFG register.

Parameters

[in]	value	PMP configuration
[in]	idx	PMP entry index, valid value is 0-15