arm_mmu.h File Reference

#include <stdint.h>
#include <stdlib.h>

Go to the source code of this file.

Data Structures
struct	arm_mmu_region
struct	arm_mmu_config
struct	arm_mmu_ptables
struct	k_mem_partition_attr_t

Macros
#define	MT_TYPE_MASK   0x7U
#define	MT_TYPE(attr)   (attr & MT_TYPE_MASK)
#define	MT_DEVICE_nGnRnE   0U
#define	MT_DEVICE_nGnRE   1U
#define	MT_DEVICE_GRE   2U
#define	MT_NORMAL_NC   3U
#define	MT_NORMAL   4U
#define	MT_NORMAL_WT   5U
#define	MEMORY_ATTRIBUTES
#define	MT_PERM_SHIFT   3U
#define	MT_SEC_SHIFT   4U
#define	MT_P_EXECUTE_SHIFT   5U
#define	MT_U_EXECUTE_SHIFT   6U
#define	MT_RW_AP_SHIFT   7U
#define	MT_NO_OVERWRITE_SHIFT   8U
#define	MT_NON_GLOBAL_SHIFT   9U
#define	MT_RO   (0U << MT_PERM_SHIFT)
#define	MT_RW   (1U << MT_PERM_SHIFT)
#define	MT_RW_AP_ELx   (1U << MT_RW_AP_SHIFT)
#define	MT_RW_AP_EL_HIGHER   (0U << MT_RW_AP_SHIFT)
#define	MT_SECURE   (0U << MT_SEC_SHIFT)
#define	MT_NS   (1U << MT_SEC_SHIFT)
#define	MT_P_EXECUTE   (0U << MT_P_EXECUTE_SHIFT)
#define	MT_P_EXECUTE_NEVER   (1U << MT_P_EXECUTE_SHIFT)
#define	MT_U_EXECUTE   (0U << MT_U_EXECUTE_SHIFT)
#define	MT_U_EXECUTE_NEVER   (1U << MT_U_EXECUTE_SHIFT)
#define	MT_NO_OVERWRITE   (1U << MT_NO_OVERWRITE_SHIFT)
#define	MT_G   (0U << MT_NON_GLOBAL_SHIFT)
#define	MT_NG   (1U << MT_NON_GLOBAL_SHIFT)
#define	MT_P_RW_U_RW   (MT_RW | MT_RW_AP_ELx | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)
#define	MT_P_RW_U_NA   (MT_RW | MT_RW_AP_EL_HIGHER | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)
#define	MT_P_RO_U_RO   (MT_RO | MT_RW_AP_ELx | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)
#define	MT_P_RO_U_NA   (MT_RO | MT_RW_AP_EL_HIGHER | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)
#define	MT_P_RO_U_RX   (MT_RO | MT_RW_AP_ELx | MT_P_EXECUTE_NEVER | MT_U_EXECUTE)
#define	MT_P_RX_U_RX   (MT_RO | MT_RW_AP_ELx | MT_P_EXECUTE | MT_U_EXECUTE)
#define	MT_P_RX_U_NA   (MT_RO | MT_RW_AP_EL_HIGHER | MT_P_EXECUTE | MT_U_EXECUTE_NEVER)
#define	MT_DEFAULT_SECURE_STATE   MT_SECURE
#define	MMU_REGION_ENTRY(_name, _base_pa, _base_va, _size, _attrs)
#define	MMU_REGION_FLAT_ENTRY(name, adr, sz, attrs)    MMU_REGION_ENTRY(name, adr, adr, sz, attrs)
#define	MMU_REGION_DT_FLAT_ENTRY(node_id, attrs)
#define	MMU_REGION_DT_COMPAT_FOREACH_FLAT_ENTRY(compat, attr)
#define	K_MEM_PARTITION_P_RW_U_RW
#define	K_MEM_PARTITION_P_RW_U_NA
#define	K_MEM_PARTITION_P_RO_U_RO
#define	K_MEM_PARTITION_P_RO_U_NA
#define	K_MEM_PARTITION_P_RX_U_RX

Variables
const struct arm_mmu_config	mmu_config

Macro Definition Documentation

K_MEM_PARTITION_P_RO_U_NA

#define K_MEM_PARTITION_P_RO_U_NA

Value:

                        ((k_mem_partition_attr_t) \
                        {MT_P_RO_U_NA})

K_MEM_PARTITION_P_RO_U_RO

#define K_MEM_PARTITION_P_RO_U_RO

Value:

                        ((k_mem_partition_attr_t) \
                        {MT_P_RO_U_RO})

K_MEM_PARTITION_P_RW_U_NA

#define K_MEM_PARTITION_P_RW_U_NA

Value:

                        ((k_mem_partition_attr_t) \
                        {MT_P_RW_U_NA})

K_MEM_PARTITION_P_RW_U_RW

#define K_MEM_PARTITION_P_RW_U_RW

Value:

                        ((k_mem_partition_attr_t) \
                        {MT_P_RW_U_RW})

K_MEM_PARTITION_P_RX_U_RX

#define K_MEM_PARTITION_P_RX_U_RX

Value:

                        ((k_mem_partition_attr_t) \
                        {MT_P_RX_U_RX})

MEMORY_ATTRIBUTES

#define MEMORY_ATTRIBUTES

Value:

                                ((0x00 << (MT_DEVICE_nGnRnE * 8)) |     \
                                (0x04 << (MT_DEVICE_nGnRE * 8))   |     \
                                (0x0c << (MT_DEVICE_GRE * 8))     |     \
                                (0x44 << (MT_NORMAL_NC * 8))      |     \
                                (0xffUL << (MT_NORMAL * 8))       |     \
                                (0xbbUL << (MT_NORMAL_WT * 8)))

MMU_REGION_DT_COMPAT_FOREACH_FLAT_ENTRY

#define MMU_REGION_DT_COMPAT_FOREACH_FLAT_ENTRY	(		compat,
			attr
	)

Value:

        DT_FOREACH_STATUS_OKAY_VARGS(compat, \
        MMU_REGION_DT_FLAT_ENTRY, attr)

MMU_REGION_DT_FLAT_ENTRY

#define MMU_REGION_DT_FLAT_ENTRY	(		node_id,
			attrs
	)

Value:

        MMU_REGION_FLAT_ENTRY(DT_NODE_FULL_NAME(node_id), \
                                  DT_REG_ADDR(node_id), \
                                  DT_REG_SIZE(node_id), \
                                  attrs),

MMU_REGION_ENTRY

#define MMU_REGION_ENTRY	(		_name,
			_base_pa,
			_base_va,
			_size,
			_attrs
	)

Value:

        {\
                .name = _name, \
                .base_pa = _base_pa, \
                .base_va = _base_va, \
                .size = _size, \
                .attrs = _attrs, \
        }

MMU_REGION_FLAT_ENTRY

#define MMU_REGION_FLAT_ENTRY	(		name,
			adr,
			sz,
			attrs
	)		MMU_REGION_ENTRY(name, adr, adr, sz, attrs)

MT_DEFAULT_SECURE_STATE

#define MT_DEFAULT_SECURE_STATE   MT_SECURE

MT_DEVICE_GRE

#define MT_DEVICE_GRE   2U

MT_DEVICE_nGnRE

#define MT_DEVICE_nGnRE   1U

MT_DEVICE_nGnRnE

#define MT_DEVICE_nGnRnE   0U

MT_G

#define MT_G   (0U << MT_NON_GLOBAL_SHIFT)

MT_NG

#define MT_NG   (1U << MT_NON_GLOBAL_SHIFT)

MT_NO_OVERWRITE

#define MT_NO_OVERWRITE   (1U << MT_NO_OVERWRITE_SHIFT)

MT_NO_OVERWRITE_SHIFT

#define MT_NO_OVERWRITE_SHIFT   8U

MT_NON_GLOBAL_SHIFT

#define MT_NON_GLOBAL_SHIFT   9U

MT_NORMAL

#define MT_NORMAL   4U

MT_NORMAL_NC

#define MT_NORMAL_NC   3U

MT_NORMAL_WT

#define MT_NORMAL_WT   5U

MT_NS

#define MT_NS   (1U << MT_SEC_SHIFT)

MT_P_EXECUTE

#define MT_P_EXECUTE   (0U << MT_P_EXECUTE_SHIFT)

MT_P_EXECUTE_NEVER

#define MT_P_EXECUTE_NEVER   (1U << MT_P_EXECUTE_SHIFT)

MT_P_EXECUTE_SHIFT

#define MT_P_EXECUTE_SHIFT   5U

MT_P_RO_U_NA

#define MT_P_RO_U_NA   (MT_RO | MT_RW_AP_EL_HIGHER | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)

MT_P_RO_U_RO

#define MT_P_RO_U_RO   (MT_RO | MT_RW_AP_ELx | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)

MT_P_RO_U_RX

#define MT_P_RO_U_RX   (MT_RO | MT_RW_AP_ELx | MT_P_EXECUTE_NEVER | MT_U_EXECUTE)

MT_P_RW_U_NA

#define MT_P_RW_U_NA   (MT_RW | MT_RW_AP_EL_HIGHER | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)

MT_P_RW_U_RW

#define MT_P_RW_U_RW   (MT_RW | MT_RW_AP_ELx | MT_P_EXECUTE_NEVER | MT_U_EXECUTE_NEVER)

MT_P_RX_U_NA

#define MT_P_RX_U_NA   (MT_RO | MT_RW_AP_EL_HIGHER | MT_P_EXECUTE | MT_U_EXECUTE_NEVER)

MT_P_RX_U_RX

#define MT_P_RX_U_RX   (MT_RO | MT_RW_AP_ELx | MT_P_EXECUTE | MT_U_EXECUTE)

MT_PERM_SHIFT

#define MT_PERM_SHIFT   3U

MT_RO

#define MT_RO   (0U << MT_PERM_SHIFT)

MT_RW

#define MT_RW   (1U << MT_PERM_SHIFT)

MT_RW_AP_EL_HIGHER

#define MT_RW_AP_EL_HIGHER   (0U << MT_RW_AP_SHIFT)

MT_RW_AP_ELx

#define MT_RW_AP_ELx   (1U << MT_RW_AP_SHIFT)

MT_RW_AP_SHIFT

#define MT_RW_AP_SHIFT   7U

MT_SEC_SHIFT

#define MT_SEC_SHIFT   4U

MT_SECURE

#define MT_SECURE   (0U << MT_SEC_SHIFT)

MT_TYPE

#define MT_TYPE

(

attr

)

(attr & MT_TYPE_MASK)

MT_TYPE_MASK

#define MT_TYPE_MASK   0x7U

MT_U_EXECUTE

#define MT_U_EXECUTE   (0U << MT_U_EXECUTE_SHIFT)

MT_U_EXECUTE_NEVER

#define MT_U_EXECUTE_NEVER   (1U << MT_U_EXECUTE_SHIFT)

MT_U_EXECUTE_SHIFT

#define MT_U_EXECUTE_SHIFT   6U

Variable Documentation

mmu_config

const struct arm_mmu_config mmu_config

extern