gem5::AMDGPUDevice Class Reference

Device model for an AMD GPU. More...

#include <amdgpu_device.hh>

Inheritance diagram for gem5::AMDGPUDevice:

Classes
struct	AddrRangeHasher

Public Member Functions
	AMDGPUDevice (const AMDGPUDeviceParams &p)
void	intrPost ()
	Methods inherited from PciDevice.
Tick	writeConfig (PacketPtr pkt) override
	Write to the PCI config space data that is stored locally.
Tick	readConfig (PacketPtr pkt) override
	Read from the PCI config space data that is stored locally.
Tick	read (PacketPtr pkt) override
	Pure virtual function that the device must implement.
Tick	write (PacketPtr pkt) override
	Pure virtual function that the device must implement.
AddrRangeList	getAddrRanges () const override
	Every PIO device is obliged to provide an implementation that returns the address ranges the device responds to.
void	serialize (CheckpointOut &cp) const override
	Checkpoint support.
void	unserialize (CheckpointIn &cp) override
	Unserialize an object.
AMDGPUInterruptHandler *	getIH ()
	Get handles to GPU blocks.
SDMAEngine *	getSDMAById (int id)
SDMAEngine *	getSDMAEngine (Addr offset)
AMDGPUVM &	getVM ()
AMDGPUMemoryManager *	getMemMgr ()
GPUCommandProcessor *	CP ()
void	setDoorbellType (uint32_t offset, QueueType qt, int ip_id=0)
	Set handles to GPU blocks.
void	unsetDoorbell (uint32_t offset)
void	processPendingDoorbells (uint32_t offset)
void	setSDMAEngine (Addr offset, SDMAEngine *eng)
uint32_t	getRegVal (uint64_t addr)
	Register value getter/setter.
void	setRegVal (uint64_t addr, uint32_t value)
RequestorID	vramRequestorId ()
	Methods related to translations and system/device memory.
uint16_t	lastVMID ()
uint16_t	allocateVMID (uint16_t pasid)
void	deallocateVmid (uint16_t vmid)
void	deallocatePasid (uint16_t pasid)
void	deallocateAllQueues (bool unmap_static)
void	mapDoorbellToVMID (Addr doorbell, uint16_t vmid)
uint16_t	getVMID (Addr doorbell)
std::unordered_map< uint16_t, std::set< int > > &	getUsedVMIDs ()
void	insertQId (uint16_t vmid, int id)
GfxVersion	getGfxVersion () const
Public Member Functions inherited from gem5::PciDevice
Addr	pciToDma (Addr pci_addr) const
void	intrPost ()
void	intrClear ()
uint8_t	interruptLine () const
AddrRangeList	getAddrRanges () const override
	Determine the address ranges that this device responds to.
	PciDevice (const PciDeviceParams &params)
	Constructor for PCI Dev.
void	serialize (CheckpointOut &cp) const override
	Serialize this object to the given output stream.
void	unserialize (CheckpointIn &cp) override
	Reconstruct the state of this object from a checkpoint.
const PciBusAddr &	busAddr () const
Public Member Functions inherited from gem5::DmaDevice
	DmaDevice (const Params &p)
virtual	~DmaDevice ()=default
void	dmaWrite (Addr addr, int size, Event *event, uint8_t *data, uint32_t sid, uint32_t ssid, Tick delay=0)
void	dmaWrite (Addr addr, int size, Event *event, uint8_t *data, Tick delay=0)
void	dmaRead (Addr addr, int size, Event *event, uint8_t *data, uint32_t sid, uint32_t ssid, Tick delay=0)
void	dmaRead (Addr addr, int size, Event *event, uint8_t *data, Tick delay=0)
bool	dmaPending () const
void	init () override
	init() is called after all C++ SimObjects have been created and all ports are connected.
Addr	cacheBlockSize () const
Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID) override
	Get a port with a given name and index.
Public Member Functions inherited from gem5::PioDevice
	PioDevice (const Params &p)
virtual	~PioDevice ()
void	init () override
	init() is called after all C++ SimObjects have been created and all ports are connected.
Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID) override
	Get a port with a given name and index.
Public Member Functions inherited from gem5::ClockedObject
	ClockedObject (const ClockedObjectParams &p)
Public Member Functions inherited from gem5::SimObject
const Params &	params () const
	SimObject (const Params &p)
virtual	~SimObject ()
virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint.
virtual void	initState ()
	initState() is called on each SimObject when not restoring from a checkpoint.
virtual void	regProbePoints ()
	Register probe points for this object.
virtual void	regProbeListeners ()
	Register probe listeners for this object.
ProbeManager *	getProbeManager ()
	Get the probe manager for this object.
virtual void	startup ()
	startup() is the final initialization call before simulation.
DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining.
virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes.
virtual void	memInvalidate ()
	Invalidate the contents of memory buffers.
void	serialize (CheckpointOut &cp) const override
	Serialize an object.
void	unserialize (CheckpointIn &cp) override
	Unserialize an object.
Public Member Functions inherited from gem5::EventManager
EventQueue *	eventQueue () const
void	schedule (Event &event, Tick when)
void	deschedule (Event &event)
void	reschedule (Event &event, Tick when, bool always=false)
void	schedule (Event *event, Tick when)
void	deschedule (Event *event)
void	reschedule (Event *event, Tick when, bool always=false)
void	wakeupEventQueue (Tick when=(Tick) -1)
	This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers.
void	setCurTick (Tick newVal)
	EventManager (EventManager &em)
	Event manger manages events in the event queue.
	EventManager (EventManager *em)
	EventManager (EventQueue *eq)
Public Member Functions inherited from gem5::Serializable
	Serializable ()
virtual	~Serializable ()
void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section.
void	serializeSection (CheckpointOut &cp, const std::string &name) const
void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object.
void	unserializeSection (CheckpointIn &cp, const std::string &name)
Public Member Functions inherited from gem5::Drainable
DrainState	drainState () const
	Return the current drain state of an object.
virtual void	notifyFork ()
	Notify a child process of a fork.
Public Member Functions inherited from gem5::statistics::Group
	Group (Group *parent, const char *name=nullptr)
	Construct a new statistics group.
virtual	~Group ()
virtual void	regStats ()
	Callback to set stat parameters.
virtual void	resetStats ()
	Callback to reset stats.
virtual void	preDumpStats ()
	Callback before stats are dumped.
void	addStat (statistics::Info *info)
	Register a stat with this group.
const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object.
const std::vector< Info * > &	getStats () const
	Get all stats associated with this object.
void	addStatGroup (const char *name, Group *block)
	Add a stat block as a child of this block.
const Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group.
void	mergeStatGroup (Group *block)
	Merge the contents (stats & children) of a block to this block.
	Group (const Group &)=delete
Group &	operator= (const Group &)=delete
Public Member Functions inherited from gem5::Named
	Named (const std::string &name_)
virtual	~Named ()=default
virtual std::string	name () const
Public Member Functions inherited from gem5::Clocked
void	updateClockPeriod ()
	Update the tick to the current tick.
Tick	clockEdge (Cycles cycles=Cycles(0)) const
	Determine the tick when a cycle begins, by default the current one, but the argument also enables the caller to determine a future cycle.
Cycles	curCycle () const
	Determine the current cycle, corresponding to a tick aligned to a clock edge.
Tick	nextCycle () const
	Based on the clock of the object, determine the start tick of the first cycle that is at least one cycle in the future.
uint64_t	frequency () const
Tick	clockPeriod () const
double	voltage () const
Cycles	ticksToCycles (Tick t) const
Tick	cyclesToTicks (Cycles c) const

Private Types
typedef void(SDMAEngine::*	sdmaFuncPtr) (uint32_t)

Private Member Functions
void	dispatchAccess (PacketPtr pkt, bool read)
	Convert a PCI packet into a response.
void	readFrame (PacketPtr pkt, Addr offset)
	Helper methods to handle specific BAR read/writes.
void	readDoorbell (PacketPtr pkt, Addr offset)
void	readMMIO (PacketPtr pkt, Addr offset)
void	writeFrame (PacketPtr pkt, Addr offset)
void	writeDoorbell (PacketPtr pkt, Addr offset)
void	writeMMIO (PacketPtr pkt, Addr offset)
bool	isROM (Addr addr) const
void	readROM (PacketPtr pkt)
void	writeROM (PacketPtr pkt)

Private Attributes
std::unordered_map< uint32_t, DoorbellInfo >	doorbells
	Structures to hold registers, doorbells, and some frame memory.
std::unordered_map< uint32_t, PacketPtr >	pendingDoorbellPkts
AddrRange	romRange
	VGA ROM methods.
std::array< uint8_t, ROM_SIZE >	rom
AMDMMIOReader	mmioReader
	MMIO reader to populate device registers map.
AMDGPUNbio	nbio
	Blocks of the GPU.
AMDGPUGfx	gfx
AMDGPUMemoryManager *	gpuMemMgr
AMDGPUInterruptHandler *	deviceIH
AMDGPUVM	gpuvm
GPUCommandProcessor *	cp
std::unordered_map< int, PM4PacketProcessor * >	pm4PktProcs
std::unordered_map< AddrRange, PM4PacketProcessor *, AddrRangeHasher >	pm4Ranges
std::unordered_map< uint32_t, SDMAEngine * >	sdmaEngs
std::unordered_map< uint32_t, SDMAEngine * >	sdmaIds
std::unordered_map< uint32_t, AddrRange >	sdmaMmios
std::unordered_map< uint32_t, sdmaFuncPtr >	sdmaFunc
bool	checkpoint_before_mmios
	Initial checkpoint support variables.
int	init_interrupt_count
std::unordered_map< uint16_t, uint16_t >	idMap
std::unordered_map< Addr, uint16_t >	doorbellVMIDMap
std::unordered_map< uint16_t, std::set< int > >	usedVMIDs
uint16_t	_lastVMID
memory::PhysicalMemory	deviceMem
GfxVersion	gfx_version = GfxVersion::gfx900

Additional Inherited Members
Public Types inherited from gem5::DmaDevice
typedef DmaDeviceParams	Params
Public Types inherited from gem5::PioDevice
using	Params = PioDeviceParams
Public Types inherited from gem5::ClockedObject
using	Params = ClockedObjectParams
	Parameters of ClockedObject.
Public Types inherited from gem5::SimObject
typedef SimObjectParams	Params
Static Public Member Functions inherited from gem5::SimObject
static void	serializeAll (const std::string &cpt_dir)
	Create a checkpoint by serializing all SimObjects in the system.
static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it.
static void	setSimObjectResolver (SimObjectResolver *resolver)
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.
static SimObjectResolver *	getSimObjectResolver ()
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.
Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.
static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.
Public Attributes inherited from gem5::ClockedObject
PowerState *	powerState
Protected Member Functions inherited from gem5::PciDevice
bool	getBAR (Addr addr, int &num, Addr &offs)
	Which base address register (if any) maps the given address?
Protected Member Functions inherited from gem5::Drainable
	Drainable ()
virtual	~Drainable ()
virtual void	drainResume ()
	Resume execution after a successful drain.
void	signalDrainDone () const
	Signal that an object is drained.
Protected Member Functions inherited from gem5::Clocked
	Clocked (ClockDomain &clk_domain)
	Create a clocked object and set the clock domain based on the parameters.
	Clocked (Clocked &)=delete
Clocked &	operator= (Clocked &)=delete
virtual	~Clocked ()
	Virtual destructor due to inheritance.
void	resetClock () const
	Reset the object's clock using the current global tick value.
virtual void	clockPeriodUpdated ()
	A hook subclasses can implement so they can do any extra work that's needed when the clock rate is changed.
Protected Attributes inherited from gem5::PciDevice
const PciBusAddr	_busAddr
PCIConfig	config
	The current config space.
std::vector< MSIXTable >	msix_table
	MSIX Table and PBA Structures.
std::vector< MSIXPbaEntry >	msix_pba
std::array< PciBar *, 6 >	BARs {}
PciHost::DeviceInterface	hostInterface
Tick	pioDelay
Tick	configDelay
const int	PMCAP_BASE
	The capability list structures and base addresses.
const int	PMCAP_ID_OFFSET
const int	PMCAP_PC_OFFSET
const int	PMCAP_PMCS_OFFSET
PMCAP	pmcap
const int	MSICAP_BASE
MSICAP	msicap
const int	MSIXCAP_BASE
const int	MSIXCAP_ID_OFFSET
const int	MSIXCAP_MXC_OFFSET
const int	MSIXCAP_MTAB_OFFSET
const int	MSIXCAP_MPBA_OFFSET
int	MSIX_TABLE_OFFSET
int	MSIX_TABLE_END
int	MSIX_PBA_OFFSET
int	MSIX_PBA_END
MSIXCAP	msixcap
const int	PXCAP_BASE
PXCAP	pxcap
Protected Attributes inherited from gem5::DmaDevice
DmaPort	dmaPort
Protected Attributes inherited from gem5::PioDevice
System *	sys
PioPort< PioDevice >	pioPort
	The pioPort that handles the requests for us and provides us requests that it sees.
Protected Attributes inherited from gem5::SimObject
const SimObjectParams &	_params
	Cached copy of the object parameters.
Protected Attributes inherited from gem5::EventManager
EventQueue *	eventq
	A pointer to this object's event queue.

Detailed Description

Device model for an AMD GPU.

This models the interface between the PCI bus and the various IP blocks behind it. It translates requests to the various BARs and sends them to the appropriate IP block. BAR0 requests are VRAM requests that go to device memory, BAR2 are doorbells which are decoded and sent to the corresponding IP block. BAR5 is the MMIO interface which writes data values to registers controlling the IP blocks.

Definition at line 63 of file amdgpu_device.hh.

Member Typedef Documentation

sdmaFuncPtr

typedef void(SDMAEngine::* gem5::AMDGPUDevice::sdmaFuncPtr) (uint32_t)

private

Definition at line 136 of file amdgpu_device.hh.

Constructor & Destructor Documentation

AMDGPUDevice()

gem5::AMDGPUDevice::AMDGPUDevice

(

const AMDGPUDeviceParams &

p

)

Definition at line 55 of file amdgpu_device.cc.

References AMDGPU_MP0_SMN_C2PMSG_33, gem5::PciDevice::config, cp, deviceIH, DPRINTF, fatal_if, gem5::AMDGPUMemoryManager::getRequestorID(), gem5::GFX_MMIO_RANGE, gfx_version, gpuMemMgr, gpuvm, gem5::GRBM_MMIO_RANGE, gem5::GPUCommandProcessor::hsaPacketProc(), gem5::IH_MMIO_RANGE, gem5::ArmISA::m, MI100_FB_LOCATION_BASE, MI100_FB_LOCATION_TOP, MI100_MEM_SIZE_REG, MI200_FB_LOCATION_BASE, MI200_FB_LOCATION_TOP, MI200_MEM_SIZE_REG, gem5::MMHUB_MMIO_RANGE, nbio, gem5::NBIO_MMIO_RANGE, gem5::MipsISA::p, panic, pm4PktProcs, pm4Ranges, gem5::RangeSize(), gem5::ROM_SIZE, romRange, gem5::ArmISA::s, sdmaFunc, sdmaIds, sdmaMmios, gem5::SDMAEngine::setGfxBaseHi(), gem5::SDMAEngine::setGfxBaseLo(), gem5::SDMAEngine::setGfxDoorbellLo(), gem5::SDMAEngine::setGfxDoorbellOffsetLo(), gem5::SDMAEngine::setGfxRptrHi(), gem5::SDMAEngine::setGfxRptrLo(), gem5::SDMAEngine::setGfxSize(), gem5::SDMAEngine::setGfxWptrHi(), gem5::SDMAEngine::setGfxWptrLo(), gem5::AMDGPUNbio::setGPUDevice(), gem5::AMDGPUInterruptHandler::setGPUDevice(), gem5::HSAPacketProcessor::setGPUDevice(), gem5::GPUCommandProcessor::setGPUDevice(), gem5::AMDGPUVM::setMMHUBBase(), gem5::AMDGPUVM::setMMHUBTop(), gem5::AMDGPUVM::setMMIOAperture(), gem5::SDMAEngine::setPageBaseLo(), gem5::SDMAEngine::setPageDoorbellLo(), gem5::SDMAEngine::setPageDoorbellOffsetLo(), gem5::SDMAEngine::setPageRptrHi(), gem5::SDMAEngine::setPageRptrLo(), gem5::SDMAEngine::setPageSize(), gem5::SDMAEngine::setPageWptrLo(), setRegVal(), VEGA10_FB_LOCATION_BASE, VEGA10_FB_LOCATION_TOP, and gem5::VGA_ROM_DEFAULT.

Member Function Documentation

allocateVMID()

uint16_t gem5::AMDGPUDevice::allocateVMID

(

uint16_t

pasid

)

Definition at line 915 of file amdgpu_device.cc.

References _lastVMID, gem5::AMDGPU_VM_COUNT, idMap, panic, gem5::pasid, and usedVMIDs.

Referenced by gem5::PM4PacketProcessor::mapProcess().

CP()

GPUCommandProcessor * gem5::AMDGPUDevice::CP ( )

inline

Definition at line 193 of file amdgpu_device.hh.

References cp.

Referenced by gem5::SDMAEngine::copyDone(), gem5::PM4PacketProcessor::mapProcess(), gem5::PM4PacketProcessor::processMQD(), gem5::SDMAEngine::ptePdeDone(), gem5::PM4PacketProcessor::unmapAllQueues(), gem5::PM4PacketProcessor::unserialize(), gem5::SDMAEngine::writeDone(), and writeFrame().

deallocateAllQueues()

void gem5::AMDGPUDevice::deallocateAllQueues

(

bool

unmap_static

)

Definition at line 948 of file amdgpu_device.cc.

References doorbells, doorbellVMIDMap, idMap, gem5::ArmISA::offset, sdmaEngs, and usedVMIDs.

Referenced by gem5::PM4PacketProcessor::unmapQueues().

deallocatePasid()

void gem5::AMDGPUDevice::deallocatePasid

(

uint16_t

pasid

)

Definition at line 936 of file amdgpu_device.cc.

References idMap, gem5::pasid, and usedVMIDs.

Referenced by gem5::PM4PacketProcessor::unmapQueues().

deallocateVmid()

void gem5::AMDGPUDevice::deallocateVmid

(

uint16_t

vmid

)

Definition at line 930 of file amdgpu_device.cc.

References usedVMIDs.

Referenced by gem5::PM4PacketProcessor::unmapQueues().

dispatchAccess()

void gem5::AMDGPUDevice::dispatchAccess ( PacketPtr  pkt, bool  read  )

private

Convert a PCI packet into a response.

Definition at line 339 of file amdgpu_device.cc.

References DPRINTF, gem5::Packet::getAddr(), gem5::Packet::getSize(), gem5::Packet::getUintX(), gem5::Packet::makeAtomicResponse(), and read().

Referenced by read(), and write().

getAddrRanges()

AddrRangeList gem5::AMDGPUDevice::getAddrRanges ( ) const

overridevirtual

Every PIO device is obliged to provide an implementation that returns the address ranges the device responds to.

Returns

a list of non-overlapping address ranges

Implements gem5::PioDevice.

Definition at line 228 of file amdgpu_device.cc.

References gem5::PciDevice::getAddrRanges(), gem5::MipsISA::r, and romRange.

getGfxVersion()

GfxVersion gem5::AMDGPUDevice::getGfxVersion ( ) const

inline

Definition at line 227 of file amdgpu_device.hh.

References gfx_version.

Referenced by gem5::PM4PacketProcessor::decodeHeader(), gem5::GPUCommandProcessor::dispatchKernelObject(), and gem5::AMDGPUNbio::readMMIO().

getIH()

AMDGPUInterruptHandler * gem5::AMDGPUDevice::getIH ( )

inline

Get handles to GPU blocks.

Definition at line 188 of file amdgpu_device.hh.

References deviceIH.

Referenced by gem5::PM4PacketProcessor::releaseMemDone(), and gem5::SDMAEngine::trap().

getMemMgr()

AMDGPUMemoryManager * gem5::AMDGPUDevice::getMemMgr ( )

inline

Definition at line 192 of file amdgpu_device.hh.

References gpuMemMgr.

Referenced by gem5::SDMAEngine::constFill(), gem5::SDMAEngine::copy(), gem5::SDMAEngine::copyReadData(), gem5::SDMAEngine::ptePde(), and gem5::SDMAEngine::writeReadData().

getRegVal()

uint32_t gem5::AMDGPUDevice::getRegVal

(

uint64_t

addr

)

Register value getter/setter.

Used by other GPU blocks to change values from incoming driver/user packets.

Definition at line 671 of file amdgpu_device.cc.

References gem5::X86ISA::addr, gem5::bits(), gem5::Packet::createRead(), gem5::Packet::dataStatic(), DPRINTF, gem5::Packet::getLE(), readMMIO(), and vramRequestorId().

Referenced by gem5::AMDGPUNbio::readMMIO().

getSDMAById()

SDMAEngine * gem5::AMDGPUDevice::getSDMAById

(

int

id

)

PM4 packets selected SDMAs using an integer ID. This method simply maps the integer ID to a pointer to the SDMA and checks for invalid IDs.

Definition at line 730 of file amdgpu_device.cc.

References gem5::ArmISA::id, and sdmaIds.

Referenced by gem5::PM4PacketProcessor::processSDMAMQD(), and writeMMIO().

getSDMAEngine()

SDMAEngine * gem5::AMDGPUDevice::getSDMAEngine

(

Addr

offset

)

Definition at line 742 of file amdgpu_device.cc.

References gem5::ArmISA::offset, and sdmaEngs.

Referenced by writeDoorbell().

getUsedVMIDs()

std::unordered_map< uint16_t, std::set< int > > & gem5::AMDGPUDevice::getUsedVMIDs

(

)

Definition at line 973 of file amdgpu_device.cc.

References usedVMIDs.

Referenced by gem5::PM4PacketProcessor::unmapAllQueues().

getVM()

AMDGPUVM & gem5::AMDGPUDevice::getVM ( )

inline

Definition at line 191 of file amdgpu_device.hh.

References gpuvm.

Referenced by gem5::SDMAEngine::copy(), gem5::SDMAEngine::copyReadData(), gem5::PM4PacketProcessor::decodeHeader(), gem5::SDMAEngine::getDeviceAddress(), gem5::PM4PacketProcessor::getGARTAddr(), gem5::SDMAEngine::getGARTAddr(), gem5::PM4PacketProcessor::mapProcess(), gem5::SDMAEngine::ptePde(), gem5::GPUCommandProcessor::submitDispatchPkt(), gem5::PM4PacketProcessor::translate(), gem5::SDMAEngine::translate(), gem5::HSAPacketProcessor::translate(), gem5::GPUCommandProcessor::translate(), gem5::VegaISA::GpuTLB::translationReturn(), gem5::AMDGPUNbio::writeFrame(), gem5::AMDGPUNbio::writeMMIO(), and gem5::SDMAEngine::writeReadData().

getVMID()

uint16_t gem5::AMDGPUDevice::getVMID ( Addr  doorbell )

inline

Definition at line 222 of file amdgpu_device.hh.

References doorbellVMIDMap.

Referenced by gem5::PM4PacketProcessor::unmapQueues().

insertQId()

void gem5::AMDGPUDevice::insertQId	(	uint16_t	vmid,
		int	id
	)

Definition at line 979 of file amdgpu_device.cc.

References usedVMIDs.

Referenced by gem5::PM4PacketProcessor::processMQD().

intrPost()

void gem5::AMDGPUDevice::intrPost

(

)

Methods inherited from PciDevice.

Definition at line 748 of file amdgpu_device.cc.

References gem5::PciDevice::intrPost().

Referenced by gem5::AMDGPUInterruptHandler::intrPost().

isROM()

bool gem5::AMDGPUDevice::isROM ( Addr  addr ) const

inlineprivate

Definition at line 97 of file amdgpu_device.hh.

References gem5::X86ISA::addr, gem5::AddrRange::contains(), and romRange.

Referenced by read(), write(), and writeROM().

lastVMID()

uint16_t gem5::AMDGPUDevice::lastVMID ( )

inline

Definition at line 216 of file amdgpu_device.hh.

References _lastVMID.

Referenced by gem5::PM4PacketProcessor::mapQueues().

mapDoorbellToVMID()

void gem5::AMDGPUDevice::mapDoorbellToVMID	(	Addr	doorbell,
		uint16_t	vmid
	)

Definition at line 967 of file amdgpu_device.cc.

References doorbellVMIDMap.

Referenced by gem5::PM4PacketProcessor::mapQueues().

processPendingDoorbells()

void gem5::AMDGPUDevice::processPendingDoorbells

(

uint32_t

offset

)

Definition at line 660 of file amdgpu_device.cc.

References DPRINTF, gem5::ArmISA::offset, pendingDoorbellPkts, and writeDoorbell().

Referenced by gem5::PM4PacketProcessor::processMQD(), and gem5::PM4PacketProcessor::processSDMAMQD().

read()

Tick gem5::AMDGPUDevice::read ( PacketPtr  pkt )

overridevirtual

Pure virtual function that the device must implement.

Called when a read command is recieved by the port.

Parameters

pkt	Packet describing this request

Returns

number of ticks it took to complete

Implements gem5::PioDevice.

Definition at line 590 of file amdgpu_device.cc.

References dispatchAccess(), gem5::DOORBELL_BAR, gem5::FRAMEBUFFER_BAR, gem5::Packet::getAddr(), gem5::PciDevice::getBAR(), isROM(), gem5::MMIO_BAR, gem5::ArmISA::offset, panic, gem5::PciDevice::pioDelay, readDoorbell(), readFrame(), readMMIO(), and readROM().

Referenced by dispatchAccess().

readConfig()

Tick gem5::AMDGPUDevice::readConfig ( PacketPtr  pkt )

overridevirtual

Read from the PCI config space data that is stored locally.

This may be overridden by the device but at some point it will eventually call this for normal operations that it does not need to override.

Parameters

pkt	packet containing the write the offset into config space

Reimplemented from gem5::PciDevice.

Definition at line 247 of file amdgpu_device.cc.

References gem5::PciDevice::_busAddr, checkpoint_before_mmios, gem5::PciDevice::configDelay, gem5::curTick(), PXCAP::data, gem5::PciBusAddr::dev, DPRINTF, gem5::exitSimLoop(), gem5::PciBusAddr::func, gem5::Packet::getAddr(), gem5::Packet::getLE(), gem5::Packet::getSize(), init_interrupt_count, gem5::Packet::makeAtomicResponse(), gem5::ArmISA::offset, panic, PCI0_INTERRUPT_PIN, PCI_CONFIG_SIZE, PCI_DEVICE_SPECIFIC, gem5::PciDevice::pxcap, gem5::PciDevice::PXCAP_BASE, gem5::PciDevice::readConfig(), gem5::Packet::setLE(), and warn.

readDoorbell()

void gem5::AMDGPUDevice::readDoorbell ( PacketPtr  pkt, Addr  offset  )

private

Definition at line 394 of file amdgpu_device.cc.

References gem5::DOORBELL_BAR, DPRINTF, mmioReader, gem5::ArmISA::offset, and gem5::AMDMMIOReader::readFromTrace().

Referenced by read().

readFrame()

void gem5::AMDGPUDevice::readFrame ( PacketPtr  pkt, Addr  offset  )

private

Helper methods to handle specific BAR read/writes.

Offset is the address of the packet - base address of the BAR.

read/writeFrame are used for BAR0 requests read/writeDoorbell are used for BAR2 requests read/writeMMIO are used for BAR5 requests

Definition at line 349 of file amdgpu_device.cc.

References gem5::memory::AbstractMemory::access(), gem5::Packet::cmd, cp, gem5::Packet::createRead(), gem5::Shader::cuList, gem5::Packet::dataDynamic(), DPRINTF, gem5::MemCmd::FunctionalReadError, gem5::System::getDeviceMemory(), gem5::Packet::getSize(), gem5::Packet::getUintX(), gem5::Shader::gpuCmdProc, nbio, gem5::ArmISA::offset, gem5::AMDGPUNbio::readFrame(), gem5::MemCmd::ReadReq, gem5::Packet::req, gem5::Packet::setSuppressFuncError(), gem5::Packet::setUintX(), gem5::GPUCommandProcessor::shader(), gem5::X86ISA::system, gem5::GPUCommandProcessor::system(), and vramRequestorId().

Referenced by read().

readMMIO()

void gem5::AMDGPUDevice::readMMIO ( PacketPtr  pkt, Addr  offset  )

private

Definition at line 401 of file amdgpu_device.cc.

References DPRINTF, gem5::AMDGPUVM::getMMIOAperture(), gem5::AMDGPUVM::getMMIORange(), gfx, gem5::GFX_MMIO_RANGE, gpuvm, gem5::GRBM_MMIO_RANGE, gem5::GRBM_OFFSET_SHIFT, gem5::MMHUB_MMIO_RANGE, gem5::MMHUB_OFFSET_SHIFT, gem5::MMIO_BAR, mmioReader, nbio, gem5::NBIO_MMIO_RANGE, gem5::ArmISA::offset, gem5::AMDMMIOReader::readFromTrace(), gem5::AMDGPUGfx::readMMIO(), gem5::AMDGPUNbio::readMMIO(), gem5::AMDGPUVM::readMMIO(), and gem5::AddrRange::start().

Referenced by getRegVal(), and read().

readROM()

void gem5::AMDGPUDevice::readROM ( PacketPtr  pkt )

private

Definition at line 201 of file amdgpu_device.cc.

References DPRINTF, gem5::Packet::getAddr(), gem5::Packet::getSize(), rom, gem5::ROM_SIZE, and gem5::Packet::setUintX().

Referenced by read().

serialize()

void gem5::AMDGPUDevice::serialize ( CheckpointOut &  cp ) const

overridevirtual

Checkpoint support.

Implements gem5::Serializable.

Definition at line 754 of file amdgpu_device.cc.

References cp, deviceMem, doorbells, gpuvm, sdmaEngs, gem5::PciDevice::serialize(), SERIALIZE_ARRAY, SERIALIZE_SCALAR, gem5::Serializable::serializeSection(), and usedVMIDs.

setDoorbellType()

void gem5::AMDGPUDevice::setDoorbellType	(	uint32_t	offset,
		QueueType	qt,
		int	ip_id = 0
	)

Set handles to GPU blocks.

Definition at line 710 of file amdgpu_device.cc.

References doorbells, DPRINTF, and gem5::ArmISA::offset.

Referenced by gem5::PM4PacketProcessor::newQueue(), gem5::PM4PacketProcessor::processSDMAMQD(), gem5::SDMAEngine::setGfxDoorbellOffsetLo(), gem5::SDMAEngine::setPageDoorbellOffsetLo(), gem5::AMDGPUInterruptHandler::writeMMIO(), gem5::PM4PacketProcessor::writeMMIO(), and gem5::SDMAEngine::writeMMIO().

setRegVal()

void gem5::AMDGPUDevice::setRegVal	(	uint64_t	addr,
		uint32_t	value
	)

Definition at line 695 of file amdgpu_device.cc.

References gem5::X86ISA::addr, gem5::Packet::createWrite(), gem5::Packet::dataStatic(), DPRINTF, vramRequestorId(), and writeMMIO().

Referenced by AMDGPUDevice(), gem5::PM4PacketProcessor::setUconfigReg(), gem5::SDMAEngine::srbmWrite(), gem5::PM4PacketProcessor::writeData(), and gem5::AMDGPUNbio::writeMMIO().

setSDMAEngine()

void gem5::AMDGPUDevice::setSDMAEngine	(	Addr	offset,
		SDMAEngine *	eng
	)

Definition at line 724 of file amdgpu_device.cc.

References gem5::ArmISA::offset, and sdmaEngs.

Referenced by gem5::PM4PacketProcessor::processSDMAMQD(), gem5::SDMAEngine::setGfxDoorbellOffsetLo(), gem5::SDMAEngine::setPageDoorbellOffsetLo(), and gem5::SDMAEngine::writeMMIO().

unserialize()

void gem5::AMDGPUDevice::unserialize ( CheckpointIn &  cp )

overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Implements gem5::Serializable.

Definition at line 834 of file amdgpu_device.cc.

References cp, deviceMem, doorbells, gpuvm, sdmaEngs, sdmaIds, gem5::PciDevice::unserialize(), UNSERIALIZE_ARRAY, UNSERIALIZE_SCALAR, gem5::Serializable::unserializeSection(), and usedVMIDs.

unsetDoorbell()

void gem5::AMDGPUDevice::unsetDoorbell

(

uint32_t

offset

)

Definition at line 718 of file amdgpu_device.cc.

References doorbells, and gem5::ArmISA::offset.

Referenced by gem5::SDMAEngine::unregisterRLCQueue().

vramRequestorId()

RequestorID gem5::AMDGPUDevice::vramRequestorId ( )

inline

Methods related to translations and system/device memory.

Definition at line 213 of file amdgpu_device.hh.

References gem5::AMDGPUMemoryManager::getRequestorID(), and gpuMemMgr.

Referenced by getRegVal(), readFrame(), gem5::SDMAEngine::setGPUDevice(), gem5::HSAPacketProcessor::setGPUDevice(), gem5::GPUCommandProcessor::setGPUDevice(), setRegVal(), gem5::VegaISA::GpuTLB::translationReturn(), gem5::GPUCommandProcessor::vramRequestorId(), and writeFrame().

write()

Tick gem5::AMDGPUDevice::write ( PacketPtr  pkt )

overridevirtual

Pure virtual function that the device must implement.

Called when a write command is recieved by the port.

Parameters

pkt	Packet describing this request

Returns

number of ticks it took to complete

Implements gem5::PioDevice.

Definition at line 619 of file amdgpu_device.cc.

References data, dispatchAccess(), gem5::DOORBELL_BAR, DPRINTF, gem5::FRAMEBUFFER_BAR, gem5::Packet::getAddr(), gem5::PciDevice::getBAR(), gem5::Packet::getUintX(), isROM(), gem5::MMIO_BAR, gem5::ArmISA::offset, panic, gem5::PciDevice::pioDelay, writeDoorbell(), writeFrame(), writeMMIO(), and writeROM().

writeConfig()

Tick gem5::AMDGPUDevice::writeConfig ( PacketPtr  pkt )

overridevirtual

Write to the PCI config space data that is stored locally.

This may be overridden by the device but at some point it will eventually call this for normal operations that it does not need to override.

Parameters

pkt	packet containing the write the offset into config space

Reimplemented from gem5::PciDevice.

Definition at line 311 of file amdgpu_device.cc.

References gem5::PciDevice::configDelay, PXCAP::data, DPRINTF, gem5::Packet::getAddr(), gem5::Packet::getConstPtr(), gem5::Packet::getSize(), gem5::Packet::getUintX(), gem5::Packet::makeAtomicResponse(), gem5::ArmISA::offset, PCI_CONFIG_SIZE, PCI_DEVICE_SPECIFIC, gem5::PciDevice::pxcap, gem5::PciDevice::PXCAP_BASE, and gem5::PciDevice::writeConfig().

writeDoorbell()

void gem5::AMDGPUDevice::writeDoorbell ( PacketPtr  pkt, Addr  offset  )

private

Definition at line 470 of file amdgpu_device.cc.

References gem5::Compute, gem5::ComputeAQL, cp, gem5::Packet::createWrite(), gem5::Packet::dataDynamic(), deviceIH, doorbells, DPRINTF, gem5::Packet::getLE(), gem5::Packet::getPtr(), getSDMAEngine(), gem5::Packet::getSize(), gem5::Gfx, gem5::GPUCommandProcessor::hsaPacketProc(), gem5::HSAPacketProcessor::hwScheduler(), gem5::InterruptHandler, gem5::ArmISA::offset, panic, pendingDoorbellPkts, pm4PktProcs, gem5::SDMAEngine::processGfx(), gem5::SDMAEngine::processPage(), gem5::SDMAEngine::processRLC(), gem5::Packet::req, gem5::RLC, gem5::SDMAGfx, gem5::SDMAPage, gem5::AMDGPUInterruptHandler::updateRptr(), warn, and gem5::HWScheduler::write().

Referenced by processPendingDoorbells(), and write().

writeFrame()

void gem5::AMDGPUDevice::writeFrame ( PacketPtr  pkt, Addr  offset  )

private

Definition at line 429 of file amdgpu_device.cc.

References gem5::memory::AbstractMemory::access(), cp, CP(), gem5::Packet::createWrite(), gem5::Shader::cuList, gem5::Packet::dataDynamic(), DPRINTF, gem5::AMDGPUVM::gartBase(), gem5::AMDGPUVM::gartTable, gem5::AMDGPUMemoryManager::getCacheLineSize(), gem5::System::getDeviceMemory(), gem5::AMDGPUVM::getFrameAperture(), gem5::Packet::getPtr(), gem5::Packet::getSize(), gem5::Packet::getUintX(), gem5::Shader::gpuCmdProc, gpuMemMgr, gpuvm, nbio, gem5::ArmISA::offset, gem5::GPUCommandProcessor::shader(), gem5::X86ISA::system, gem5::GPUCommandProcessor::system(), vramRequestorId(), and gem5::AMDGPUNbio::writeFrame().

Referenced by write().

writeMMIO()

void gem5::AMDGPUDevice::writeMMIO ( PacketPtr  pkt, Addr  offset  )

private

Definition at line 536 of file amdgpu_device.cc.

References deviceIH, DPRINTF, gem5::Packet::getLE(), gem5::AMDGPUVM::getMMIOAperture(), gem5::AMDGPUVM::getMMIORange(), getSDMAById(), gfx, gem5::GFX_MMIO_RANGE, gpuvm, gem5::GRBM_MMIO_RANGE, gem5::GRBM_OFFSET_SHIFT, gem5::IH_MMIO_RANGE, gem5::IH_OFFSET_SHIFT, nbio, gem5::NBIO_MMIO_RANGE, gem5::ArmISA::offset, pm4Ranges, sdmaFunc, sdmaIds, sdmaMmios, gem5::AddrRange::start(), gem5::AMDGPUInterruptHandler::writeMMIO(), gem5::AMDGPUGfx::writeMMIO(), gem5::AMDGPUNbio::writeMMIO(), and gem5::AMDGPUVM::writeMMIO().

Referenced by setRegVal(), and write().

writeROM()

void gem5::AMDGPUDevice::writeROM ( PacketPtr  pkt )

private

Definition at line 214 of file amdgpu_device.cc.

References DPRINTF, gem5::Packet::getAddr(), gem5::Packet::getSize(), gem5::Packet::getUintX(), isROM(), rom, romRange, and gem5::AddrRange::start().

Referenced by write().

Member Data Documentation

_lastVMID

uint16_t gem5::AMDGPUDevice::_lastVMID

private

Definition at line 153 of file amdgpu_device.hh.

Referenced by allocateVMID(), and lastVMID().

checkpoint_before_mmios

bool gem5::AMDGPUDevice::checkpoint_before_mmios

private

Initial checkpoint support variables.

Definition at line 142 of file amdgpu_device.hh.

Referenced by readConfig().

cp

GPUCommandProcessor* gem5::AMDGPUDevice::cp

private

Definition at line 116 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), CP(), readFrame(), serialize(), unserialize(), writeDoorbell(), and writeFrame().

deviceIH

AMDGPUInterruptHandler* gem5::AMDGPUDevice::deviceIH

private

Definition at line 114 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), getIH(), writeDoorbell(), and writeMMIO().

deviceMem

memory::PhysicalMemory gem5::AMDGPUDevice::deviceMem

private

Definition at line 158 of file amdgpu_device.hh.

Referenced by serialize(), and unserialize().

doorbells

std::unordered_map<uint32_t, DoorbellInfo> gem5::AMDGPUDevice::doorbells

private

Structures to hold registers, doorbells, and some frame memory.

Definition at line 90 of file amdgpu_device.hh.

Referenced by deallocateAllQueues(), serialize(), setDoorbellType(), unserialize(), unsetDoorbell(), and writeDoorbell().

doorbellVMIDMap

std::unordered_map<Addr, uint16_t> gem5::AMDGPUDevice::doorbellVMIDMap

private

Definition at line 149 of file amdgpu_device.hh.

Referenced by deallocateAllQueues(), getVMID(), and mapDoorbellToVMID().

gfx

AMDGPUGfx gem5::AMDGPUDevice::gfx

private

Definition at line 112 of file amdgpu_device.hh.

Referenced by readMMIO(), and writeMMIO().

gfx_version

GfxVersion gem5::AMDGPUDevice::gfx_version = GfxVersion::gfx900

private

Definition at line 161 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), and getGfxVersion().

gpuMemMgr

AMDGPUMemoryManager* gem5::AMDGPUDevice::gpuMemMgr

private

Definition at line 113 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), getMemMgr(), vramRequestorId(), and writeFrame().

gpuvm

AMDGPUVM gem5::AMDGPUDevice::gpuvm

private

Definition at line 115 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), getVM(), readMMIO(), serialize(), unserialize(), writeFrame(), and writeMMIO().

idMap

std::unordered_map<uint16_t, uint16_t> gem5::AMDGPUDevice::idMap

private

Definition at line 147 of file amdgpu_device.hh.

Referenced by allocateVMID(), deallocateAllQueues(), and deallocatePasid().

init_interrupt_count

int gem5::AMDGPUDevice::init_interrupt_count

private

Definition at line 143 of file amdgpu_device.hh.

Referenced by readConfig().

mmioReader

AMDMMIOReader gem5::AMDGPUDevice::mmioReader

private

MMIO reader to populate device registers map.

Definition at line 106 of file amdgpu_device.hh.

Referenced by readDoorbell(), and readMMIO().

nbio

AMDGPUNbio gem5::AMDGPUDevice::nbio

private

Blocks of the GPU.

Definition at line 111 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), readFrame(), readMMIO(), writeFrame(), and writeMMIO().

pendingDoorbellPkts

std::unordered_map<uint32_t, PacketPtr> gem5::AMDGPUDevice::pendingDoorbellPkts

private

Definition at line 91 of file amdgpu_device.hh.

Referenced by processPendingDoorbells(), and writeDoorbell().

pm4PktProcs

std::unordered_map<int, PM4PacketProcessor *> gem5::AMDGPUDevice::pm4PktProcs

private

Definition at line 125 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), and writeDoorbell().

pm4Ranges

std::unordered_map<AddrRange, PM4PacketProcessor *, AddrRangeHasher> gem5::AMDGPUDevice::pm4Ranges

private

Definition at line 127 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), and writeMMIO().

rom

std::array<uint8_t, ROM_SIZE> gem5::AMDGPUDevice::rom

private

Definition at line 101 of file amdgpu_device.hh.

Referenced by readROM(), and writeROM().

romRange

AddrRange gem5::AMDGPUDevice::romRange

private

VGA ROM methods.

Definition at line 96 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), getAddrRanges(), isROM(), and writeROM().

sdmaEngs

std::unordered_map<uint32_t, SDMAEngine *> gem5::AMDGPUDevice::sdmaEngs

private

Definition at line 130 of file amdgpu_device.hh.

Referenced by deallocateAllQueues(), getSDMAEngine(), serialize(), setSDMAEngine(), and unserialize().

sdmaFunc

std::unordered_map<uint32_t, sdmaFuncPtr> gem5::AMDGPUDevice::sdmaFunc

private

Definition at line 137 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), and writeMMIO().

sdmaIds

std::unordered_map<uint32_t, SDMAEngine *> gem5::AMDGPUDevice::sdmaIds

private

Definition at line 132 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), getSDMAById(), unserialize(), and writeMMIO().

sdmaMmios

std::unordered_map<uint32_t, AddrRange> gem5::AMDGPUDevice::sdmaMmios

private

Definition at line 134 of file amdgpu_device.hh.

Referenced by AMDGPUDevice(), and writeMMIO().

usedVMIDs

std::unordered_map<uint16_t, std::set<int> > gem5::AMDGPUDevice::usedVMIDs

private

Definition at line 151 of file amdgpu_device.hh.

Referenced by allocateVMID(), deallocateAllQueues(), deallocatePasid(), deallocateVmid(), getUsedVMIDs(), insertQId(), serialize(), and unserialize().

---

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

• dev/amdgpu/amdgpu_device.hh
• dev/amdgpu/amdgpu_device.cc