ARMv7 cache management implementation. More...

#include <ARMCacheV7.h>

Inheritance diagram for ARMCacheV7:

Public Member Functions
virtual Result	invalidate (Type type)
	Invalidate the entire cache. More...

virtual Result	cleanInvalidate (Type type)
	Clean and invalidate entire cache. More...

virtual Result	cleanInvalidateAddress (Type type, Address addr)
	Clean and invalidate one memory page. More...

virtual Result	cleanAddress (Type type, Address addr)
	Clean one memory page. More...

virtual Result	invalidateAddress (Type type, Address addr)
	Invalidate one memory page. More...

Public Member Functions inherited from Cache
virtual Result	cleanData (Address addr)
	Clean one data page. More...

virtual Result	cleanData (void *ptr)
	Clean one data page. More...

Private Types
enum	CacheLevelType { CacheLevelInstruction = 1, CacheLevelData = 2, CacheLevelInstructionData = 3, CacheLevelUnified = 4 }
	Defines the cache level type bits. More...

Private Member Functions
Result	dataFlush (bool clean)
	Flush the entire data cache. More...

u32	getCacheLevelId () const
	Get cache level identifier. More...

u32	getCacheLineSize () const
	Get cache line size in bytes. More...

u32	readCacheSize (u32 level, u32 type) const
	Get cache size. More...

Result	flushLevel (u32 level, bool clean)
	Clean and Invalidate by cache level. More...

Private Attributes
ARMControl	m_control
	ARM system control processor object. More...

Additional Inherited Members
Public Types inherited from Cache
enum	Result { Success, InvalidArgument, IOError, NotSupported }
	Result codes. More...

enum	Type { Instruction, Data, Unified }
	Cache types. More...

Detailed Description

ARMv7 cache management implementation.

See also: ARM Architecture Reference Manual, page xxx

Definition at line 42 of file ARMCacheV7.h.

Member Enumeration Documentation

◆ CacheLevelType

enum ARMCacheV7::CacheLevelType

private

Defines the cache level type bits.

Enumerator
CacheLevelInstruction
CacheLevelData
CacheLevelInstructionData
CacheLevelUnified

Definition at line 49 of file ARMCacheV7.h.

Member Function Documentation

◆ cleanAddress()

ARMCacheV7::Result ARMCacheV7::cleanAddress	(	ARMCacheV7::Type	type,
		Address	addr
	)

virtual

Clean one memory page.

Parameters

type	Cache type to clean
addr	Virtual memory address of the page to clean and invalidate

Returns: Result code

Implements Cache.

Definition at line 110 of file ARMCacheV7.cpp.

References Cache::Data, dsb(), getCacheLineSize(), Cache::Instruction, Cache::IOError, isb(), mcr, PAGEMASK, PAGESIZE, Cache::Success, type, and Cache::Unified.

◆ cleanInvalidate()

ARMCacheV7::Result ARMCacheV7::cleanInvalidate ( ARMCacheV7::Type type )

virtual

Clean and invalidate entire cache.

This operation will clean and invalidate the entire given cache.

Parameters

type	Cache type to clean and invalidate.

Returns: Result code

Implements Cache.

Definition at line 52 of file ARMCacheV7.cpp.

References Cache::Data, dataFlush(), dsb(), flushBranchPrediction(), Cache::Instruction, isb(), mcr, Cache::Success, type, and Cache::Unified.

Referenced by invalidate().

◆ cleanInvalidateAddress()

ARMCacheV7::Result ARMCacheV7::cleanInvalidateAddress	(	Type	type,
		Address	addr
	)

virtual

Clean and invalidate one memory page.

Parameters

type	Cache type to clean and invalidate.
addr	Virtual memory address of the page to clean and invalidate

Returns: Result code

Implements Cache.

Definition at line 82 of file ARMCacheV7.cpp.

References Cache::Data, dsb(), getCacheLineSize(), Cache::Instruction, Cache::IOError, isb(), mcr, PAGEMASK, PAGESIZE, Cache::Success, type, and Cache::Unified.

◆ dataFlush()

ARMCacheV7::Result ARMCacheV7::dataFlush ( bool clean )

private

Flush the entire data cache.

Parameters

clean True to clean cache before invalidation.

Returns: Result code

Definition at line 267 of file ARMCacheV7.cpp.

References CacheLevelData, CacheLevelInstruction, CacheLevelUnified, flushLevel(), getCacheLevelId(), and Cache::Success.

Referenced by cleanInvalidate(), and invalidate().

◆ flushLevel()

ARMCacheV7::Result ARMCacheV7::flushLevel	(	u32	level,
		bool	clean
	)

private

Clean and Invalidate by cache level.

Parameters

level	Cache level
clean	True to clean cache before invalidation.

Returns: Result code

Definition at line 218 of file ARMCacheV7.cpp.

References CCSIDR_ASSOCIATIVITY_MASK, CCSIDR_ASSOCIATIVITY_OFFSET, CCSIDR_LINE_SIZE_MASK, CCSIDR_LINE_SIZE_OFFSET, CCSIDR_NUM_SETS_MASK, CCSIDR_NUM_SETS_OFFSET, dsb(), log_2_n_round_up(), readCacheSize(), and Cache::Success.

Referenced by dataFlush().

◆ getCacheLevelId()

u32 ARMCacheV7::getCacheLevelId ( ) const

private

Get cache level identifier.

Returns: Cache Level Identifier

Definition at line 163 of file ARMCacheV7.cpp.

Referenced by dataFlush().

◆ getCacheLineSize()

u32 ARMCacheV7::getCacheLineSize ( ) const

private

Get cache line size in bytes.

Returns: Cache line in bytes

Definition at line 170 of file ARMCacheV7.cpp.

References CCSIDR_LINE_SIZE_MASK, and CCSIDR_LINE_SIZE_OFFSET.

Referenced by cleanAddress(), cleanInvalidateAddress(), and invalidateAddress().

◆ invalidate()

ARMCacheV7::Result ARMCacheV7::invalidate ( ARMCacheV7::Type type )

virtual

Invalidate the entire cache.

Parameters

type	Cache type to invalidate.

Returns: Result code

Implements Cache.

Definition at line 34 of file ARMCacheV7.cpp.

References cleanInvalidate(), Cache::Data, dataFlush(), Cache::Instruction, Cache::Success, type, and Cache::Unified.

◆ invalidateAddress()

ARMCacheV7::Result ARMCacheV7::invalidateAddress	(	ARMCacheV7::Type	type,
		Address	addr
	)

virtual

Invalidate one memory page.

Parameters

type	Cache type to invalidate
addr	Virtual memory address of the page to invalidate

Returns: Result code

Implements Cache.

Definition at line 138 of file ARMCacheV7.cpp.

References Cache::Data, dsb(), getCacheLineSize(), Cache::Instruction, Cache::IOError, mcr, PAGEMASK, PAGESIZE, Cache::Success, type, and Cache::Unified.

◆ readCacheSize()

u32 ARMCacheV7::readCacheSize	(	u32	level,
		u32	type
	)		const

private

Get cache size.

Parameters

level	Cache level to get size for
type	Cache type to get size for

Returns: Cache size in bytes

Definition at line 188 of file ARMCacheV7.cpp.

References type.

Referenced by flushLevel().

Field Documentation

◆ m_control

ARMControl ARMCacheV7::m_control

private

ARM system control processor object.

Definition at line 158 of file ARMCacheV7.h.

The documentation for this class was generated from the following files:

lib/libarch/arm/ARMCacheV7.h
lib/libarch/arm/ARMCacheV7.cpp

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ CacheLevelType

Member Function Documentation

◆ cleanAddress()

◆ cleanInvalidate()

◆ cleanInvalidateAddress()

◆ dataFlush()

◆ flushLevel()

◆ getCacheLevelId()

◆ getCacheLineSize()

◆ invalidate()

◆ invalidateAddress()

◆ readCacheSize()

Field Documentation

◆ m_control