#include <errno.h>
#include <zephyr/drivers/misc/tt_grendel_filter.h>
#include <err.h>
#include <firewall.h>

Include dependency graph for tt_grendel_filter.c:

Macros
#define	LOG_ERR(...)
#define	LOG_INF(...)
#define	LOG_MODULE_REGISTER(...)
#define	CONFIG_TT_GRENDEL_FILTER_LOG_LEVEL 0
#define	FILTER_ADDRESS_MASK FIREWALL_ADDR_MASK
#define	FILTER_MAX_ENTRIES 16U

Functions
int	tt_grendel_filter_enable (uint32_t bank, uint32_t entry, uint32_t hsio_tile, uint64_t start, uint64_t end, struct tt_grendel_filter_flags flags)
	Enable a filter entry for an inclusive address range.
int	tt_grendel_filter_disable (uint32_t bank, uint32_t entry, uint32_t hsio_tile)
	Disable a filter entry.

Macro Definition Documentation

◆ CONFIG_TT_GRENDEL_FILTER_LOG_LEVEL

#define CONFIG_TT_GRENDEL_FILTER_LOG_LEVEL 0

#define FILTER_ADDRESS_MASK FIREWALL_ADDR_MASK

#define FILTER_MAX_ENTRIES 16U

#define LOG_ERR ( ... )

#define LOG_INF ( ... )

#define LOG_MODULE_REGISTER ( ... )

int tt_grendel_filter_disable	(	uint32_t	bank,
		uint32_t	entry,
		uint32_t	hsio_tile )

Disable a filter entry.

Parameters

Return values

0	Entry disabled.
-EINVAL	Invalid entry or SiVal parameters.
-EIO	Unmapped SiVal error.

int tt_grendel_filter_enable	(	uint32_t	bank,
		uint32_t	entry,
		uint32_t	hsio_tile,
		uint64_t	start,
		uint64_t	end,
		struct tt_grendel_filter_flags	flags )

Enable a filter entry for an inclusive address range.

Parameters

bank	SiVal filter_t bank.
entry	Filter entry index.
hsio_tile	HSIO/SMN tile (0 for SMC banks).
start	First address admitted by the entry.
end	Last address admitted by the entry.
flags	Accesses admitted by the entry.

Return values

0	Entry enabled.
-EINVAL	Invalid entry, range, flags, or SiVal parameters.
-EIO	Unmapped SiVal error.