ARM64Control Namespace Reference

ARM64 System Control Coprocessor (CP15). More...

Enumerations
enum	Register {   MainID = 0 , CoreID , SystemControl , AuxControl ,   DomainControl , TranslationTable0 , TranslationTable1 , TranslationTableCtrl ,   CacheClear , DataCacheClean , FlushPrefetchBuffer , InstructionCacheClear ,   InstructionTLBClear , DataTLBClear , UnifiedTLBClear , UserProcID ,   InstructionFaultAddress , InstructionFaultStatus , DataFaultAddress , DataFaultStatus ,   SystemFrequency , PhysicalTimerValue , PhysicalTimerControl , PhysicalTimerCount ,   MemoryModelFeature , MemoryAttrIndirection , VectorBaseAddress , DAIF }
	System Control Registers. More...
enum	AuxControlFlags { DisablePageColoring = (1 << 6) , SMPBit = (1 << 6) }
	Aux Control flags. More...
enum	DomainControlFlags { DomainClient = 1 , DomainManager = 3 }
	Domain Control flags. More...

Functions
u64	read (Register reg)
	Read a register from the CP15.
void	write (Register reg, u64 value)
	Write register to the CP15.
void	set (Register reg, u64 flags)
void	unset (Register reg, u64 flags)
void	set (AuxControlFlags flags)
	Set auxillary flags in CP15.
void	set (DomainControlFlags flags)
	Set domain control flags in CP15.

Variables
enum ARM64Control::Register	ALIGN

Detailed Description

ARM64 System Control Coprocessor (CP15).

The ARM64 Architecture defines a coprocessor to manage various subsystems in the ARM64 core, including virtual memory, interrupts, debugging and more. It appears as coprocessor number 15 to the ARM64 core and is accessible by the MRC (ARM64 Register from Coprocessor) and MCR () instructions.

See also

ARM64 Architecture Reference Manual, page xxx

Enumeration Type Documentation

AuxControlFlags

enum ARM64Control::AuxControlFlags

Aux Control flags.

Enumerator
DisablePageColoring
SMPBit

Definition at line 90 of file ARM64Control.h.

DomainControlFlags

enum ARM64Control::DomainControlFlags

Domain Control flags.

Enumerator
DomainClient
DomainManager

Definition at line 99 of file ARM64Control.h.

Register

enum ARM64Control::Register

System Control Registers.

Enumerator
MainID
CoreID
SystemControl
AuxControl
DomainControl
TranslationTable0
TranslationTable1
TranslationTableCtrl
CacheClear
DataCacheClean
FlushPrefetchBuffer
InstructionCacheClear
InstructionTLBClear
DataTLBClear
UnifiedTLBClear
UserProcID
InstructionFaultAddress
InstructionFaultStatus
DataFaultAddress
DataFaultStatus
SystemFrequency
PhysicalTimerValue
PhysicalTimerControl
PhysicalTimerCount
MemoryModelFeature
MemoryAttrIndirection
VectorBaseAddress
DAIF

Definition at line 53 of file ARM64Control.h.

Function Documentation

read()

u64 ARM64Control::read

(

Register

reg

)

Read a register from the CP15.

Parameters

reg	The Register to read.

Returns

32-bit value of the register.

Definition at line 24 of file ARM64Control.cpp.

References DAIF, MemoryModelFeature, PhysicalTimerControl, PhysicalTimerCount, PhysicalTimerValue, SystemControl, and SystemFrequency.

Referenced by ARM64Paging::enableMMU(), ARM64Timer::getSystemFrequency(), set(), and unset().

set() [1/3]

void ARM64Control::set

(

AuxControlFlags

flags

)

Set auxillary flags in CP15.

Parameters

flags

Auxillary flags to set

Definition at line 116 of file ARM64Control.cpp.

References AuxControl, flags, and set().

set() [2/3]

void ARM64Control::set

(

DomainControlFlags

flags

)

Set domain control flags in CP15.

Parameters

flags

New domain control flags

Definition at line 121 of file ARM64Control.cpp.

References DomainControl, flags, and set().

set() [3/3]

void ARM64Control::set	(	Register	reg,
		u64	flags
	)

Definition at line 102 of file ARM64Control.cpp.

References flags, read(), and write().

Referenced by set(), and set().

unset()

void ARM64Control::unset	(	Register	reg,
		u64	flags
	)

Definition at line 109 of file ARM64Control.cpp.

References flags, read(), and write().

write()

void ARM64Control::write	(	Register	reg,
		u64	value
	)

Write register to the CP15.

Parameters

reg	The Register to write.
value	32-value to write.

Definition at line 62 of file ARM64Control.cpp.

References MemoryAttrIndirection, PhysicalTimerControl, PhysicalTimerValue, SystemControl, TranslationTable0, TranslationTable1, TranslationTableCtrl, and VectorBaseAddress.

Referenced by ARM64Paging::activate(), ARM64Exception::ARM64Exception(), ARM64Paging::enableMMU(), set(), ARM64Timer::setPL1PhysicalTimerControl(), ARM64Timer::setPL1PhysicalTimerValue(), and unset().

Variable Documentation

ALIGN

enum ARM64Control::Register ARM64Control::ALIGN