PMSAv7 Support

This group provides support functions to manage an Arm PMSAv7 (Protected Memory System Architecture) based Memory Protection Unit (MPU). More...

Files
file	cpukit/score/cpu/arm/include/rtems/score/armv7-pmsa.h
	This header file provides the API to manage an Arm PMSAv7 based Memory Protection Unit (MPU).

Data Structures
struct	ARMV7_PMSA_Region
	The region definition is used to initialize the Memory Protection Unit (MPU). More...

Macros
#define	ARMV7_RGNR_REGION_SHIFT   0
#define	ARMV7_RGNR_REGION_MASK   0xffU
#define	ARMV7_RGNR_REGION_GET(_reg)
#define	ARMV7_RGNR_REGION_SET(_reg, _val)
#define	ARMV7_RGNR_REGION(_val)
#define	ARMV7_RSR_EN   0x1U
#define	ARMV7_RSR_RSIZE_SHIFT   1
#define	ARMV7_RSR_RSIZE_MASK   0x3eU
#define	ARMV7_RSR_RSIZE_GET(_reg)
#define	ARMV7_RSR_RSIZE_SET(_reg, _val)
#define	ARMV7_RSR_RSIZE(_val)
#define	ARMV7_RSR_SD_SHIFT   8
#define	ARMV7_RSR_SD_MASK   0xff00U
#define	ARMV7_RSR_SD_GET(_reg)
#define	ARMV7_RSR_SD_SET(_reg, _val)
#define	ARMV7_RSR_SD(_val)
#define	ARMV7_RACR_B   0x1U
#define	ARMV7_RACR_C   0x2U
#define	ARMV7_RACR_S   0x4U
#define	ARMV7_RACR_TEX_0   0x8U
#define	ARMV7_RACR_TEX_1   0x10U
#define	ARMV7_RACR_TEX_2   0x20U
#define	ARMV7_RACR_AP_0   0x100U
#define	ARMV7_RACR_AP_1   0x200U
#define	ARMV7_RACR_AP_2   0x400U
#define	ARMV7_RACR_XN   0x1000U
#define	ARMV7_PMSA_READ_ONLY_CACHED
#define	ARMV7_PMSA_READ_ONLY_UNCACHED   (ARMV7_RACR_TEX_0 | ARMV7_RACR_AP_0 | ARMV7_RACR_AP_2)
#define	ARMV7_PMSA_READ_WRITE_CACHED   (ARMV7_RACR_TEX_0 | ARMV7_RACR_C | ARMV7_RACR_B | ARMV7_RACR_AP_0)
#define	ARMV7_PMSA_READ_WRITE_UNCACHED   (ARMV7_RACR_TEX_0 | ARMV7_RACR_AP_0)
#define	ARMV7_PMSA_READ_WRITE_SHARED   (ARMV7_RACR_TEX_0 | ARMV7_RACR_S | ARMV7_RACR_AP_0)
#define	ARMV7_PMSA_SHAREABLE_DEVICE   (ARMV7_RACR_B | ARMV7_RACR_AP_0)
#define	ARMV7_PMSA_NON_SHAREABLE_DEVICE   (ARMV7_RACR_TEX_1 | ARMV7_RACR_AP_0)

Typedefs
typedef struct ARMV7_PMSA_Region	ARMV7_PMSA_Region
	The region definition is used to initialize the Memory Protection Unit (MPU).

Detailed Description

This group provides support functions to manage an Arm PMSAv7 (Protected Memory System Architecture) based Memory Protection Unit (MPU).

Macro Definition Documentation

ARMV7_PMSA_READ_ONLY_CACHED

#define ARMV7_PMSA_READ_ONLY_CACHED

Value:

(ARMV7_RACR_TEX_0 | ARMV7_RACR_C | ARMV7_RACR_B | ARMV7_RACR_AP_0 | \
 ARMV7_RACR_AP_2)

ARMV7_RGNR_REGION

#define ARMV7_RGNR_REGION

(

_val

)

Value:

(((_val) << ARMV7_RGNR_REGION_SHIFT) & ARMV7_RGNR_REGION_MASK)

ARMV7_RGNR_REGION_GET

#define ARMV7_RGNR_REGION_GET

(

_reg

)

Value:

(((_reg)&ARMV7_RGNR_REGION_MASK) >> ARMV7_RGNR_REGION_SHIFT)

ARMV7_RGNR_REGION_SET

#define ARMV7_RGNR_REGION_SET	(		_reg,
			_val )

Value:

(((_reg) & ~ARMV7_RGNR_REGION_MASK) |   \
 (((_val) << ARMV7_RGNR_REGION_SHIFT) & ARMV7_RGNR_REGION_MASK))

ARMV7_RSR_RSIZE

#define ARMV7_RSR_RSIZE

(

_val

)

Value:

(((_val) << ARMV7_RSR_RSIZE_SHIFT) & ARMV7_RSR_RSIZE_MASK)

ARMV7_RSR_RSIZE_GET

#define ARMV7_RSR_RSIZE_GET

(

_reg

)

Value:

(((_reg)&ARMV7_RSR_RSIZE_MASK) >> ARMV7_RSR_RSIZE_SHIFT)

ARMV7_RSR_RSIZE_SET

#define ARMV7_RSR_RSIZE_SET	(		_reg,
			_val )

Value:

(((_reg) & ~ARMV7_RSR_RSIZE_MASK) |   \
 (((_val) << ARMV7_RSR_RSIZE_SHIFT) & ARMV7_RSR_RSIZE_MASK))

ARMV7_RSR_SD

#define ARMV7_RSR_SD

(

_val

)

Value:

(((_val) << ARMV7_RSR_SD_SHIFT) & ARMV7_RSR_SD_MASK)

ARMV7_RSR_SD_GET

#define ARMV7_RSR_SD_GET

(

_reg

)

Value:

(((_reg)&ARMV7_RSR_SD_MASK) >> ARMV7_RSR_SD_SHIFT)

ARMV7_RSR_SD_SET

#define ARMV7_RSR_SD_SET	(		_reg,
			_val )

Value:

(((_reg) & ~ARMV7_RSR_SD_MASK) |   \
 (((_val) << ARMV7_RSR_SD_SHIFT) & ARMV7_RSR_SD_MASK))

Typedef Documentation

ARMV7_PMSA_Region

typedef struct ARMV7_PMSA_Region ARMV7_PMSA_Region

The region definition is used to initialize the Memory Protection Unit (MPU).

A region is empty if the size is zero.