Implementation of the PhysicalMemoryManager for common ppc. More...

#include <PhysicalMemoryManager.h>

Inheritance diagram for PpcCommonPhysicalMemoryManager:

Collaboration diagram for PpcCommonPhysicalMemoryManager:

Classes
class	PageStack

Public Member Functions
virtual physical_uintptr_t	allocatePage ()

virtual void	freePage (physical_uintptr_t page)

virtual bool	allocateRegion (MemoryRegion &Region, size_t cPages, size_t pageConstraints, size_t Flags, physical_uintptr_t start=-1)

void	initialise (Translations &translations, uintptr_t ramMax)

void	unmapRegion (MemoryRegion *pRegion)

Public Member Functions inherited from PhysicalMemoryManager
virtual physical_uintptr_t	allocatePage (size_t pageConstraints=0)=0

virtual void	pin (physical_uintptr_t page)=0

void	allocateMemoryRegionList (Vector< MemoryRegionInfo * > &MemoryRegions)

void	freeMemoryRegionList (Vector< MemoryRegionInfo * > &MemoryRegions)

virtual size_t	freePageCount () const

Static Public Member Functions
static PpcCommonPhysicalMemoryManager &	instance ()

Static Public Member Functions inherited from PhysicalMemoryManager
static PhysicalMemoryManager &	instance ()

static size_t	getPageSize () PURE

Protected Member Functions
	PpcCommonPhysicalMemoryManager ()

virtual	~PpcCommonPhysicalMemoryManager ()

Protected Member Functions inherited from PhysicalMemoryManager
	PhysicalMemoryManager ()

virtual	~PhysicalMemoryManager ()

Private Member Functions
	PpcCommonPhysicalMemoryManager (const PpcCommonPhysicalMemoryManager &)

PpcCommonPhysicalMemoryManager &	operator= (const PpcCommonPhysicalMemoryManager &)

Private Attributes
PageStack	m_PageStack

bool	m_InitialMode

physical_uintptr_t	m_NextPage

RangeList< uint64_t >	m_PhysicalRanges

RangeList< uintptr_t >	m_MemoryRegions

Static Private Attributes
static PpcCommonPhysicalMemoryManager	m_Instance

Additional Inherited Members
Static Public Attributes inherited from PhysicalMemoryManager
static const size_t	continuous = 1 << 0

static const size_t	nonRamMemory = 1 << 1

static const size_t	force = 1 << 2

static const size_t	virtualOnly = 1 << 3

static const size_t	below1MB = 1 << 4

static const size_t	below16MB = 1 << 5

static const size_t	below4GB = 1 << 6

static const size_t	below64GB = 1 << 7

static const size_t	addressConstraints

static const size_t	anonymous = 1 << 8

Protected Attributes inherited from PhysicalMemoryManager
Vector< MemoryRegion * >	m_MemoryRegions

Detailed Description

Implementation of the PhysicalMemoryManager for common ppc.

The common PPC implementation of the PhysicalMemoryManager.

This implementation has two modes - the initial mode and the 'normal' mode. In the initial mode the PMM will allocate a contiguous set of frames starting from PMM_INITIAL_START. There is no way to free pages in this mode.

In 'normal' mode the PMM uses a page stack and a rangelist for allocation/ deallocation.

The PMM is in initial mode as soon as the constructor is called - a call to 'initialise' will put it into normal mode.

Definition at line 42 of file kernel/core/processor/ppc_common/PhysicalMemoryManager.h.

Constructor & Destructor Documentation

PpcCommonPhysicalMemoryManager::PpcCommonPhysicalMemoryManager ( )

protected

The constructor

Definition at line 147 of file ppc_common/PhysicalMemoryManager.cc.

Referenced by instance().

Here is the caller graph for this function:

PpcCommonPhysicalMemoryManager::~PpcCommonPhysicalMemoryManager ( )

protectedvirtual

The destructor

Definition at line 152 of file ppc_common/PhysicalMemoryManager.cc.

References RangeList< T, Reversed >::allocateSpecific(), RangeList< T, Reversed >::free(), PpcCommonPhysicalMemoryManager::PageStack::free(), Translations::getNumTranslations(), PhysicalMemoryManager::getPageSize(), Translations::getTranslation(), m_InitialMode, m_MemoryRegions, m_NextPage, m_PageStack, and m_PhysicalRanges.

Referenced by instance().

Here is the caller graph for this function:

PpcCommonPhysicalMemoryManager::PpcCommonPhysicalMemoryManager ( const PpcCommonPhysicalMemoryManager & )

private

The copy-constructor

Note: Not implemented (singleton)

Member Function Documentation

bool PpcCommonPhysicalMemoryManager::allocateRegion	(	MemoryRegion &	Region,
		size_t	cPages,
		size_t	pageConstraints,
		size_t	Flags,
		physical_uintptr_t	start = `-1`
	)

virtual

Allocate a memory-region with specific constraints the pages need to fullfill.

Parameters

[in]	Region	reference to the MemoryRegion object
[in]	cPages	the number of pages to allocate for the MemoryRegion object
[in]	pageConstraints	the constraints the pages have to fullfill
[in]	Flags	flags from the VirtualAddressSpace class namespace
[in]	start	the physical address of the beginning of the region (optional)