#include <request.hh>

Public Types
enum	: FlagsType { ARCH_BITS = 0x000000FF, INST_FETCH = 0x00000100, PHYSICAL = 0x00000200, UNCACHEABLE = 0x00000400, STRICT_ORDER = 0x00000800, PRIVILEGED = 0x00008000, CACHE_BLOCK_ZERO = 0x00010000, NO_ACCESS = 0x00080000, LOCKED_RMW = 0x00100000, LLSC = 0x00200000, MEM_SWAP = 0x00400000, MEM_SWAP_COND = 0x00800000, PREFETCH = 0x01000000, PF_EXCLUSIVE = 0x02000000, EVICT_NEXT = 0x04000000, ACQUIRE = 0x00020000, RELEASE = 0x00040000, ATOMIC_RETURN_OP = 0x40000000, ATOMIC_NO_RETURN_OP = 0x80000000, KERNEL = 0x00001000, SECURE = 0x10000000, PT_WALK = 0x20000000, INVALIDATE = 0x0000000100000000, CLEAN = 0x0000000200000000, DST_POU = 0x0000001000000000, DST_POC = 0x0000002000000000, DST_BITS = 0x0000003000000000, STICKY_FLAGS = INST_FETCH }

enum	: MemSpaceConfigFlagsType { SCOPE_VALID = 0x00000001, WAVEFRONT_SCOPE = 0x00000002, WORKGROUP_SCOPE = 0x00000004, DEVICE_SCOPE = 0x00000008, SYSTEM_SCOPE = 0x00000010, GLOBAL_SEGMENT = 0x00000020, GROUP_SEGMENT = 0x00000040, PRIVATE_SEGMENT = 0x00000080, KERNARG_SEGMENT = 0x00000100, READONLY_SEGMENT = 0x00000200, SPILL_SEGMENT = 0x00000400, ARG_SEGMENT = 0x00000800 }

typedef uint64_t	FlagsType

typedef uint8_t	ArchFlagsType

typedef ::Flags< FlagsType >	Flags

typedef uint32_t	MemSpaceConfigFlagsType

typedef ::Flags< MemSpaceConfigFlagsType >	MemSpaceConfigFlags

using	LocalAccessor = std::function< Cycles(ThreadContext tc, Packet pkt)>


enum	: MasterID { wbMasterId = 0, funcMasterId = 1, intMasterId = 2, invldMasterId = std::numeric_limits<MasterID>::max() }
	Master Ids that are statically allocated. More...

Public Member Functions
	Request ()
	Minimal constructor. More...

	Request (Addr paddr, unsigned size, Flags flags, MasterID mid)
	Constructor for physical (e.g. More...

	Request (Addr vaddr, unsigned size, Flags flags, MasterID mid, Addr pc, ContextID cid, AtomicOpFunctorPtr atomic_op=nullptr)

	Request (const Request &other)

	~Request ()

void	setContext (ContextID context_id)
	Set up Context numbers. More...

void	setStreamId (uint32_t sid)

void	setSubStreamId (uint32_t ssid)

void	setVirt (Addr vaddr, unsigned size, Flags flags, MasterID mid, Addr pc, AtomicOpFunctorPtr amo_op=nullptr)
	Set up a virtual (e.g., CPU) request in a previously allocated Request object. More...

void	setPaddr (Addr paddr)
	Set just the physical address. More...

void	splitOnVaddr (Addr split_addr, RequestPtr &req1, RequestPtr &req2)
	Generate two requests as if this request had been split into two pieces. More...

bool	hasPaddr () const
	Accessor for paddr. More...

Addr	getPaddr () const

bool	hasSize () const
	Accessor for size. More...

unsigned	getSize () const

const std::vector< bool > &	getByteEnable () const

void	setByteEnable (const std::vector< bool > &be)

bool	isMasked () const
	Returns true if the memory request is masked, which means there is at least one byteEnable element which is false (byte is masked) More...

Tick	time () const
	Accessor for time. More...

bool	isLocalAccess ()
	Is this request for a local memory mapped resource/register? More...

void	setLocalAccessor (LocalAccessor acc)
	Set the function which will enact that access. More...

Cycles	localAccessor (ThreadContext tc, Packet pkt)
	Perform the installed local access. More...

bool	hasAtomicOpFunctor ()
	Accessor for atomic-op functor. More...

AtomicOpFunctor *	getAtomicOpFunctor ()

Flags	getFlags ()
	Accessor for flags. More...

void	setFlags (Flags flags)
	Note that unlike other accessors, this function sets specific flags (ORs them in); it does not assign its argument to the _flags field. More...

void	setMemSpaceConfigFlags (MemSpaceConfigFlags extraFlags)

bool	hasVaddr () const
	Accessor function for vaddr. More...

Addr	getVaddr () const

MasterID	masterId () const
	Accesssor for the requestor id. More...

uint32_t	taskId () const

void	taskId (uint32_t id)

ArchFlagsType	getArchFlags () const
	Accessor function for architecture-specific flags. More...

bool	extraDataValid () const
	Accessor function to check if sc result is valid. More...

uint64_t	getExtraData () const
	Accessor function for store conditional return value. More...

void	setExtraData (uint64_t extraData)
	Accessor function for store conditional return value. More...

bool	hasContextId () const

ContextID	contextId () const
	Accessor function for context ID. More...

uint32_t	streamId () const

bool	hasSubstreamId () const

uint32_t	substreamId () const

void	setPC (Addr pc)

bool	hasPC () const

Addr	getPC () const
	Accessor function for pc. More...

void	incAccessDepth () const
	Increment/Get the depth at which this request is responded to. More...

int	getAccessDepth () const

void	setTranslateLatency ()
	Set/Get the time taken for this request to be successfully translated. More...

Tick	getTranslateLatency () const

void	setAccessLatency ()
	Set/Get the time taken to complete this request's access, not including the time to successfully translate the request. More...

Tick	getAccessLatency () const

bool	hasInstSeqNum () const
	Accessor for the sequence number of instruction that creates the request. More...

InstSeqNum	getReqInstSeqNum () const

void	setReqInstSeqNum (const InstSeqNum seq_num)

bool	isUncacheable () const
	Accessor functions for flags. More...

bool	isStrictlyOrdered () const

bool	isInstFetch () const

bool	isPrefetch () const

bool	isPrefetchEx () const

bool	isLLSC () const

bool	isPriv () const

bool	isLockedRMW () const

bool	isSwap () const

bool	isCondSwap () const

bool	isSecure () const

bool	isPTWalk () const

bool	isAcquire () const

bool	isRelease () const

bool	isKernel () const

bool	isAtomicReturn () const

bool	isAtomicNoReturn () const

bool	isAtomic () const

bool	isToPOU () const
	Accessor functions for the destination of a memory request. More...

bool	isToPOC () const

Flags	getDest () const

bool	isScoped () const
	Accessor functions for the memory space configuration flags and used by GPU ISAs such as the Heterogeneous System Architecture (HSA). More...

bool	isWavefrontScope () const

bool	isWorkgroupScope () const

bool	isDeviceScope () const

bool	isSystemScope () const

bool	isGlobalSegment () const

bool	isGroupSegment () const

bool	isPrivateSegment () const

bool	isKernargSegment () const

bool	isReadonlySegment () const

bool	isSpillSegment () const

bool	isArgSegment () const


bool	isCacheClean () const
	Accessor functions to determine whether this request is part of a cache maintenance operation. More...

bool	isCacheInvalidate () const

bool	isCacheMaintenance () const

Public Attributes
Tick	translateDelta = 0
	Time for the TLB/table walker to successfully translate this request. More...

Tick	accessDelta = 0
	Access latency to complete this memory transaction not including translation time. More...

int	depth = 0
	Level of the cache hierachy where this request was responded to (e.g. More...

Static Public Attributes
static const FlagsType	STORE_NO_DATA

Private Types
enum	: PrivateFlagsType { VALID_SIZE = 0x00000001, VALID_PADDR = 0x00000002, VALID_VADDR = 0x00000004, VALID_INST_SEQ_NUM = 0x00000008, VALID_PC = 0x00000010, VALID_CONTEXT_ID = 0x00000020, VALID_EXTRA_DATA = 0x00000080, VALID_STREAM_ID = 0x00000100, VALID_SUBSTREAM_ID = 0x00000200, STICKY_PRIVATE_FLAGS = VALID_CONTEXT_ID }

typedef uint16_t	PrivateFlagsType

typedef ::Flags< PrivateFlagsType >	PrivateFlags

Private Attributes
Addr	_paddr = 0
	The physical address of the request. More...

unsigned	_size = 0
	The size of the request. More...

std::vector< bool >	_byteEnable
	Byte-enable mask for writes. More...

MasterID	_masterId = invldMasterId
	The requestor ID which is unique in the system for all ports that are capable of issuing a transaction. More...

Flags	_flags
	Flag structure for the request. More...

MemSpaceConfigFlags	_memSpaceConfigFlags
	Memory space configuraiton flag structure for the request. More...

PrivateFlags	privateFlags
	Private flags for field validity checking. More...

Tick	_time = MaxTick
	The time this request was started. More...

uint32_t	_taskId = ContextSwitchTaskId::Unknown
	The task id associated with this request. More...

uint32_t	_streamId = 0
	The stream ID uniquely identifies a device behind the SMMU/IOMMU Each transaction arriving at the SMMU/IOMMU is associated with exactly one stream ID. More...

uint32_t	_substreamId = 0
	The substream ID identifies an "execution context" within a device behind an SMMU/IOMMU. More...

Addr	_vaddr = MaxAddr
	The virtual address of the request. More...

uint64_t	_extraData = 0
	Extra data for the request, such as the return value of store conditional or the compare value for a CAS. More...

ContextID	_contextId = InvalidContextID
	The context ID (for statistics, locks, and wakeups). More...

Addr	_pc = MaxAddr
	program counter of initiating access; for tracing/debugging More...

InstSeqNum	_reqInstSeqNum = 0
	Sequence number of the instruction that creates the request. More...

AtomicOpFunctorPtr	atomicOpFunctor = nullptr
	A pointer to an atomic operation. More...

LocalAccessor	_localAccessor

Detailed Description

Definition at line 86 of file request.hh.

Member Typedef Documentation

◆ ArchFlagsType

typedef uint8_t Request::ArchFlagsType

Definition at line 90 of file request.hh.

◆ Flags

typedef ::Flags<FlagsType> Request::Flags

Definition at line 91 of file request.hh.

◆ FlagsType

typedef uint64_t Request::FlagsType

Definition at line 89 of file request.hh.

◆ LocalAccessor

using Request::LocalAccessor = std::function<Cycles(ThreadContext *tc, Packet *pkt)>

Definition at line 251 of file request.hh.

◆ MemSpaceConfigFlags

typedef ::Flags<MemSpaceConfigFlagsType> Request::MemSpaceConfigFlags

Definition at line 220 of file request.hh.

◆ MemSpaceConfigFlagsType

typedef uint32_t Request::MemSpaceConfigFlagsType

Definition at line 219 of file request.hh.

◆ PrivateFlags

typedef ::Flags<PrivateFlagsType> Request::PrivateFlags

private

Definition at line 255 of file request.hh.

◆ PrivateFlagsType

typedef uint16_t Request::PrivateFlagsType

private

Definition at line 254 of file request.hh.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum : FlagsType

Enumerator
ARCH_BITS	Architecture specific flags. These bits int the flag field are reserved for architecture-specific code. For example, SPARC uses them to represent ASIs.
INST_FETCH	The request was an instruction fetch.
PHYSICAL	The virtual address is also the physical address.
UNCACHEABLE	The request is to an uncacheable address. Note Uncacheable accesses may be reordered by CPU models. The STRICT_ORDER flag should be set if such reordering is undesirable.
STRICT_ORDER	The request is required to be strictly ordered by CPU models and is non-speculative. A strictly ordered request is guaranteed to never be re-ordered or executed speculatively by a CPU model. The memory system may still reorder requests in caches unless the UNCACHEABLE flag is set as well.
PRIVILEGED	This request is made in privileged mode.
CACHE_BLOCK_ZERO	This is a write that is targeted and zeroing an entire cache block. There is no need for a read/modify/write
NO_ACCESS	The request should not cause a memory access.
LOCKED_RMW	This request will lock or unlock the accessed memory. When used with a load, the access locks the particular chunk of memory. When used with a store, it unlocks. The rule is that locked accesses have to be made up of a locked load, some operation on the data, and then a locked store.
LLSC	The request is a Load locked/store conditional.
MEM_SWAP	This request is for a memory swap.
MEM_SWAP_COND
PREFETCH	The request is a prefetch.
PF_EXCLUSIVE	The request should be prefetched into the exclusive state.
EVICT_NEXT	The request should be marked as LRU.
ACQUIRE	The request should be marked with ACQUIRE.
RELEASE	The request should be marked with RELEASE.
ATOMIC_RETURN_OP	The request is an atomic that returns data.
ATOMIC_NO_RETURN_OP	The request is an atomic that does not return data.
KERNEL	The request should be marked with KERNEL. Used to indicate the synchronization associated with a GPU kernel launch or completion.
SECURE	The request targets the secure memory space.
PT_WALK	The request is a page table walk.
INVALIDATE	The request invalidates a memory location.
CLEAN	The request cleans a memory location.
DST_POU	The request targets the point of unification.
DST_POC	The request targets the point of coherence.
DST_BITS	Bits to define the destination of a request.
STICKY_FLAGS	These flags are not cleared when a Request object is reused (assigned a new address).

Definition at line 93 of file request.hh.

◆ anonymous enum

anonymous enum : MasterID

Master Ids that are statically allocated.

Enumerator
wbMasterId	This master id is used for writeback requests by the caches.
funcMasterId	This master id is used for functional requests that don't come from a particular device.
intMasterId	This master id is used for message signaled interrupts.
invldMasterId	Invalid master id for assertion checking only. It is invalid behavior to ever send this id as part of a request.

Definition at line 201 of file request.hh.

◆ anonymous enum

anonymous enum : MemSpaceConfigFlagsType

Enumerator
SCOPE_VALID	Has a synchronization scope been set?
WAVEFRONT_SCOPE	Access has Wavefront scope visibility.
WORKGROUP_SCOPE	Access has Workgroup scope visibility.
DEVICE_SCOPE	Access has Device (e.g., GPU) scope visibility.
SYSTEM_SCOPE	Access has System (e.g., CPU + GPU) scope visibility.
GLOBAL_SEGMENT	Global Segment.
GROUP_SEGMENT	Group Segment.
PRIVATE_SEGMENT	Private Segment.
KERNARG_SEGMENT	Kergarg Segment.
READONLY_SEGMENT	Readonly Segment.
SPILL_SEGMENT	Spill Segment.
ARG_SEGMENT	Arg Segment.

Definition at line 222 of file request.hh.

◆ anonymous enum

anonymous enum : PrivateFlagsType

private

Enumerator
VALID_SIZE	Whether or not the size is valid.
VALID_PADDR	Whether or not paddr is valid (has been written yet).
VALID_VADDR	Whether or not the vaddr is valid.
VALID_INST_SEQ_NUM	Whether or not the instruction sequence number is valid.
VALID_PC	Whether or not the pc is valid.
VALID_CONTEXT_ID	Whether or not the context ID is valid.
VALID_EXTRA_DATA	Whether or not the sc result is valid.
VALID_STREAM_ID	Whether or not the stream ID and substream ID is valid.
VALID_SUBSTREAM_ID
STICKY_PRIVATE_FLAGS	These flags are not cleared when a Request object is reused (assigned a new address).

Definition at line 257 of file request.hh.

Constructor & Destructor Documentation

◆ Request() [1/4]

Request::Request ( )

inline

Minimal constructor.

No fields are initialized. (Note that _flags and privateFlags are cleared by Flags default constructor.)

Definition at line 370 of file request.hh.

◆ Request() [2/4]

Request::Request	(	Addr	paddr,
		unsigned	size,
		Flags	flags,
		MasterID	mid
	)

inline

Constructor for physical (e.g.

device) requests. Initializes just physical address, size, flags, and timestamp (to curTick()). These fields are adequate to perform a request.

Definition at line 377 of file request.hh.

References Flags< T >::set().

◆ Request() [3/4]

Request::Request	(	Addr	vaddr,
		unsigned	size,
		Flags	flags,
		MasterID	mid,
		Addr	pc,
		ContextID	cid,
		AtomicOpFunctorPtr	atomic_op = `nullptr`
	)

inline

Definition at line 384 of file request.hh.

◆ Request() [4/4]

Request::Request ( const Request & other )

inline

Definition at line 392 of file request.hh.

References atomicOpFunctor.

◆ ~Request()

Request::~Request ( )

inline

Definition at line 411 of file request.hh.

Member Function Documentation

◆ contextId()

ContextID Request::contextId ( ) const

inline

Accessor function for context ID.

Definition at line 709 of file request.hh.

References Flags< T >::isSet().

◆ extraDataValid()

bool Request::extraDataValid ( ) const

inline

Accessor function to check if sc result is valid.

Definition at line 680 of file request.hh.

References Flags< T >::isSet().

◆ getAccessDepth()

int Request::getAccessDepth ( ) const

inline

Definition at line 761 of file request.hh.

◆ getAccessLatency()

Tick Request::getAccessLatency ( ) const

inline

Definition at line 774 of file request.hh.

◆ getArchFlags()

ArchFlagsType Request::getArchFlags ( ) const

inline

Accessor function for architecture-specific flags.

Definition at line 672 of file request.hh.

References Flags< T >::isSet().

◆ getAtomicOpFunctor()

AtomicOpFunctor* Request::getAtomicOpFunctor ( )

inline

Definition at line 606 of file request.hh.

◆ getByteEnable()

const std::vector<bool>& Request::getByteEnable ( ) const

inline

Definition at line 551 of file request.hh.

◆ getDest()

Flags Request::getDest ( ) const

inline

Definition at line 837 of file request.hh.

◆ getExtraData()

uint64_t Request::getExtraData ( ) const

inline

Accessor function for store conditional return value.

Definition at line 687 of file request.hh.

References Flags< T >::isSet().

◆ getFlags()

Flags Request::getFlags ( )

inline

Accessor for flags.

Definition at line 614 of file request.hh.

References Flags< T >::isSet().

◆ getPaddr()

Addr Request::getPaddr ( ) const

inline

Definition at line 511 of file request.hh.

References Flags< T >::isSet().

◆ getPC()

Addr Request::getPC ( ) const

inline

Accessor function for pc.

Definition at line 750 of file request.hh.

References Flags< T >::isSet().

◆ getReqInstSeqNum()

InstSeqNum Request::getReqInstSeqNum ( ) const

inline

Definition at line 787 of file request.hh.

References Flags< T >::isSet().

◆ getSize()

unsigned Request::getSize ( ) const

inline

Definition at line 544 of file request.hh.

References Flags< T >::isSet().

◆ getTranslateLatency()

Tick Request::getTranslateLatency ( ) const

inline

Definition at line 767 of file request.hh.

◆ getVaddr()

Addr Request::getVaddr ( ) const

inline

Definition at line 646 of file request.hh.

References Flags< T >::isSet().

◆ hasAtomicOpFunctor()

bool Request::hasAtomicOpFunctor ( )

inline

Accessor for atomic-op functor.

Definition at line 600 of file request.hh.

◆ hasContextId()

bool Request::hasContextId ( ) const

inline

Definition at line 702 of file request.hh.

References Flags< T >::isSet().

◆ hasInstSeqNum()

bool Request::hasInstSeqNum ( ) const

inline

Accessor for the sequence number of instruction that creates the request.

Definition at line 781 of file request.hh.

References Flags< T >::isSet().

◆ hasPaddr()

bool Request::hasPaddr ( ) const

inline

Accessor for paddr.

Definition at line 505 of file request.hh.

References Flags< T >::isSet().

◆ hasPC()

bool Request::hasPC ( ) const

inline

Definition at line 743 of file request.hh.

References Flags< T >::isSet().

◆ hasSize()

bool Request::hasSize ( ) const

inline

Accessor for size.

Definition at line 538 of file request.hh.

References Flags< T >::isSet().

◆ hasSubstreamId()

bool Request::hasSubstreamId ( ) const

inline

Definition at line 723 of file request.hh.

References Flags< T >::isSet().

◆ hasVaddr()

bool Request::hasVaddr ( ) const

inline

Accessor function for vaddr.

Definition at line 640 of file request.hh.

References Flags< T >::isSet().

◆ incAccessDepth()

void Request::incAccessDepth ( ) const

inline

Increment/Get the depth at which this request is responded to.

This currently happens when the request misses in any cache level.

Definition at line 760 of file request.hh.

◆ isAcquire()

bool Request::isAcquire ( ) const

inline

Definition at line 815 of file request.hh.

References Flags< T >::isSet().

◆ isArgSegment()

bool Request::isArgSegment ( ) const

inline

Definition at line 915 of file request.hh.

References Flags< T >::isSet().

◆ isAtomic()

bool Request::isAtomic ( ) const

inline

Definition at line 822 of file request.hh.

References Flags< T >::isSet().

◆ isAtomicNoReturn()

bool Request::isAtomicNoReturn ( ) const

inline

Definition at line 819 of file request.hh.

References Flags< T >::isSet().

◆ isAtomicReturn()

bool Request::isAtomicReturn ( ) const

inline

Definition at line 818 of file request.hh.

References Flags< T >::isSet().

◆ isCacheClean()

bool Request::isCacheClean ( ) const

inline

Accessor functions to determine whether this request is part of a cache maintenance operation.

At the moment three operations are supported:

1) A cache clean operation updates all copies of a memory location to the point of reference, 2) A cache invalidate operation invalidates all copies of the specified block in the memory above the point of reference, 3) A clean and invalidate operation is a combination of the two operations.

Definition at line 932 of file request.hh.

References RiscvISA::CLEAN, and Flags< T >::isSet().

◆ isCacheInvalidate()

bool Request::isCacheInvalidate ( ) const

inline

Definition at line 933 of file request.hh.

References Flags< T >::isSet().

◆ isCacheMaintenance()

bool Request::isCacheMaintenance ( ) const

inline

Definition at line 934 of file request.hh.

References RiscvISA::CLEAN, and Flags< T >::isSet().

◆ isCondSwap()

bool Request::isCondSwap ( ) const

inline

Definition at line 812 of file request.hh.

References Flags< T >::isSet().

◆ isDeviceScope()

bool Request::isDeviceScope ( ) const

inline

Definition at line 862 of file request.hh.

References Flags< T >::isSet().

◆ isGlobalSegment()

bool Request::isGlobalSegment ( ) const

inline

Definition at line 876 of file request.hh.

References Flags< T >::isSet().

◆ isGroupSegment()

bool Request::isGroupSegment ( ) const

inline

Definition at line 885 of file request.hh.

References Flags< T >::isSet().

◆ isInstFetch()

bool Request::isInstFetch ( ) const

inline

Definition at line 804 of file request.hh.

References Flags< T >::isSet().

◆ isKernargSegment()

bool Request::isKernargSegment ( ) const

inline

Definition at line 897 of file request.hh.

References Flags< T >::isSet().

◆ isKernel()

bool Request::isKernel ( ) const

inline

Definition at line 817 of file request.hh.

References Flags< T >::isSet().

◆ isLLSC()

bool Request::isLLSC ( ) const

inline

Definition at line 808 of file request.hh.

References Flags< T >::isSet().

◆ isLocalAccess()

bool Request::isLocalAccess ( )

inline

Is this request for a local memory mapped resource/register?

Definition at line 586 of file request.hh.

◆ isLockedRMW()

bool Request::isLockedRMW ( ) const

inline

Definition at line 810 of file request.hh.

References Flags< T >::isSet().

◆ isMasked()

bool Request::isMasked ( ) const

inline

Returns true if the memory request is masked, which means there is at least one byteEnable element which is false (byte is masked)

Definition at line 569 of file request.hh.

◆ isPrefetch()

bool Request::isPrefetch ( ) const

inline

Definition at line 805 of file request.hh.

References Flags< T >::isSet().

◆ isPrefetchEx()

bool Request::isPrefetchEx ( ) const

inline

Definition at line 807 of file request.hh.

References Flags< T >::isSet().

◆ isPriv()

bool Request::isPriv ( ) const

inline

Definition at line 809 of file request.hh.

References Flags< T >::isSet().

◆ isPrivateSegment()

bool Request::isPrivateSegment ( ) const

inline

Definition at line 891 of file request.hh.

References Flags< T >::isSet().

◆ isPTWalk()

bool Request::isPTWalk ( ) const

inline

Definition at line 814 of file request.hh.

References Flags< T >::isSet().

◆ isReadonlySegment()

bool Request::isReadonlySegment ( ) const

inline

Definition at line 903 of file request.hh.

References Flags< T >::isSet().

◆ isRelease()

bool Request::isRelease ( ) const

inline

Definition at line 816 of file request.hh.

References Flags< T >::isSet().

◆ isScoped()

bool Request::isScoped ( ) const

inline

Accessor functions for the memory space configuration flags and used by GPU ISAs such as the Heterogeneous System Architecture (HSA).

Note that these are for testing only; setting extraFlags should be done via setMemSpaceConfigFlags().

Definition at line 845 of file request.hh.

References Flags< T >::isSet().

◆ isSecure()

bool Request::isSecure ( ) const

inline

Definition at line 813 of file request.hh.

References Flags< T >::isSet().

◆ isSpillSegment()

bool Request::isSpillSegment ( ) const

inline

Definition at line 909 of file request.hh.

References Flags< T >::isSet().

◆ isStrictlyOrdered()

bool Request::isStrictlyOrdered ( ) const

inline

Definition at line 803 of file request.hh.

References Flags< T >::isSet().

◆ isSwap()

bool Request::isSwap ( ) const

inline

Definition at line 811 of file request.hh.

References Flags< T >::isSet().

◆ isSystemScope()

bool Request::isSystemScope ( ) const

inline

Definition at line 869 of file request.hh.

References Flags< T >::isSet().

◆ isToPOC()

bool Request::isToPOC ( ) const

inline

Definition at line 836 of file request.hh.

References Flags< T >::isSet().

◆ isToPOU()

bool Request::isToPOU ( ) const

inline

Accessor functions for the destination of a memory request.

The destination flag can specify a point of reference for the operation (e.g. a cache block clean to the the point of unification). At the moment the destination is only used by the cache maintenance operations.

Definition at line 835 of file request.hh.

References Flags< T >::isSet().

◆ isUncacheable()

bool Request::isUncacheable ( ) const

inline

Accessor functions for flags.

Note that these are for testing only; setting flags should be done via setFlags().

Definition at line 802 of file request.hh.

References Flags< T >::isSet().

◆ isWavefrontScope()

bool Request::isWavefrontScope ( ) const

inline

Definition at line 848 of file request.hh.

References Flags< T >::isSet().

◆ isWorkgroupScope()

bool Request::isWorkgroupScope ( ) const

inline

Definition at line 855 of file request.hh.

References Flags< T >::isSet().

◆ localAccessor()

Cycles Request::localAccessor	(	ThreadContext *	tc,
		Packet *	pkt
	)

inline

Perform the installed local access.

Definition at line 591 of file request.hh.

◆ masterId()

MasterID Request::masterId ( ) const

inline

Accesssor for the requestor id.

Definition at line 654 of file request.hh.

◆ setAccessLatency()

void Request::setAccessLatency ( )

inline

Set/Get the time taken to complete this request's access, not including the time to successfully translate the request.

Definition at line 773 of file request.hh.

References curTick().

◆ setByteEnable()

void Request::setByteEnable ( const std::vector< bool > & be )

inline

Definition at line 557 of file request.hh.

References MipsISA::be.

◆ setContext()

void Request::setContext ( ContextID context_id )

inline

Set up Context numbers.

Definition at line 417 of file request.hh.

References Flags< T >::set().

◆ setExtraData()

void Request::setExtraData ( uint64_t extraData )

inline

Accessor function for store conditional return value.

Definition at line 695 of file request.hh.

References Flags< T >::set().

◆ setFlags()

void Request::setFlags ( Flags flags )

inline

Note that unlike other accessors, this function sets specific flags (ORs them in); it does not assign its argument to the _flags field.

Thus this method should rightly be called setFlags() and not just flags().

Definition at line 625 of file request.hh.

References Flags< T >::isSet(), and Flags< T >::set().

◆ setLocalAccessor()

void Request::setLocalAccessor ( LocalAccessor acc )

inline

Set the function which will enact that access.

Definition at line 588 of file request.hh.

◆ setMemSpaceConfigFlags()

void Request::setMemSpaceConfigFlags ( MemSpaceConfigFlags extraFlags )

inline

Definition at line 632 of file request.hh.

References Flags< T >::isSet(), and Flags< T >::set().

◆ setPaddr()

void Request::setPaddr ( Addr paddr )

inline

Set just the physical address.

This usually used to record the result of a translation.

Definition at line 468 of file request.hh.

References Flags< T >::set().

◆ setPC()

void Request::setPC ( Addr pc )

inline

Definition at line 736 of file request.hh.

References MipsISA::pc, and Flags< T >::set().

◆ setReqInstSeqNum()

void Request::setReqInstSeqNum ( const InstSeqNum seq_num )

inline

Definition at line 794 of file request.hh.

References Flags< T >::set().

◆ setStreamId()

void Request::setStreamId ( uint32_t sid )

inline

Definition at line 424 of file request.hh.

References Flags< T >::set().

◆ setSubStreamId()

void Request::setSubStreamId ( uint32_t ssid )

inline

Definition at line 431 of file request.hh.

References Flags< T >::isSet(), and Flags< T >::set().

◆ setTranslateLatency()

void Request::setTranslateLatency ( )

inline

Set/Get the time taken for this request to be successfully translated.

Definition at line 766 of file request.hh.

References curTick().

◆ setVirt()

void Request::setVirt	(	Addr	vaddr,
		unsigned	size,
		Flags	flags,
		MasterID	mid,
		Addr	pc,
		AtomicOpFunctorPtr	amo_op = `nullptr`
	)

inline

Set up a virtual (e.g., CPU) request in a previously allocated Request object.

Definition at line 443 of file request.hh.

References Flags< T >::clear(), curTick(), MipsISA::pc, Flags< T >::set(), and MipsISA::vaddr.

◆ splitOnVaddr()

void Request::splitOnVaddr	(	Addr	split_addr,
		RequestPtr &	req1,
		RequestPtr &	req2
	)

inline

Generate two requests as if this request had been split into two pieces.

The original request can't have been translated already.

Definition at line 481 of file request.hh.

References Flags< T >::isSet(), and Flags< T >::noneSet().

Referenced by Gcn3ISA::Inst_SMEM::initMemRead(), and Gcn3ISA::Inst_SMEM::initMemWrite().

◆ streamId()

uint32_t Request::streamId ( ) const

inline

Definition at line 716 of file request.hh.

References Flags< T >::isSet().

◆ substreamId()

uint32_t Request::substreamId ( ) const

inline

Definition at line 729 of file request.hh.

References Flags< T >::isSet().

◆ taskId() [1/2]

uint32_t Request::taskId ( ) const

inline

Definition at line 660 of file request.hh.

◆ taskId() [2/2]

void Request::taskId ( uint32_t id )

inline

Definition at line 666 of file request.hh.

References ArmISA::id.

◆ time()

Tick Request::time ( ) const

inline

Accessor for time.

Definition at line 579 of file request.hh.

References Flags< T >::isSet().

Member Data Documentation

◆ _byteEnable

std::vector<bool> Request::_byteEnable

private

Byte-enable mask for writes.

Definition at line 298 of file request.hh.

◆ _contextId

ContextID Request::_contextId = InvalidContextID

private

The context ID (for statistics, locks, and wakeups).

Definition at line 350 of file request.hh.

◆ _extraData

uint64_t Request::_extraData = 0

private

Extra data for the request, such as the return value of store conditional or the compare value for a CAS.

Definition at line 347 of file request.hh.

◆ _flags

Flags Request::_flags

private

Flag structure for the request.

Definition at line 306 of file request.hh.

◆ _localAccessor

LocalAccessor Request::_localAccessor

private

Definition at line 361 of file request.hh.

◆ _masterId

MasterID Request::_masterId = invldMasterId

private

The requestor ID which is unique in the system for all ports that are capable of issuing a transaction.

Definition at line 303 of file request.hh.

◆ _memSpaceConfigFlags

MemSpaceConfigFlags Request::_memSpaceConfigFlags

private

Memory space configuraiton flag structure for the request.

Definition at line 309 of file request.hh.

◆ _paddr

Addr Request::_paddr = 0

private

The physical address of the request.

Valid only if validPaddr is set.

Definition at line 288 of file request.hh.

◆ _pc

Addr Request::_pc = MaxAddr

private

program counter of initiating access; for tracing/debugging

Definition at line 353 of file request.hh.

◆ _reqInstSeqNum

InstSeqNum Request::_reqInstSeqNum = 0

private

Sequence number of the instruction that creates the request.

Definition at line 356 of file request.hh.

◆ _size

unsigned Request::_size = 0

private

The size of the request.

This field must be set when vaddr or paddr is written via setVirt() or a phys basec constructor, so it is always valid as long as one of the address fields is valid.

Definition at line 295 of file request.hh.

◆ _streamId

uint32_t Request::_streamId = 0

private

The stream ID uniquely identifies a device behind the SMMU/IOMMU Each transaction arriving at the SMMU/IOMMU is associated with exactly one stream ID.

Definition at line 331 of file request.hh.

◆ _substreamId

uint32_t Request::_substreamId = 0

private

The substream ID identifies an "execution context" within a device behind an SMMU/IOMMU.

It's intended to map 1-to-1 to PCIe PASID (Process Address Space ID). The presence of a substream ID is optional.

Definition at line 339 of file request.hh.

◆ _taskId

uint32_t Request::_taskId = ContextSwitchTaskId::Unknown

private

The task id associated with this request.

Definition at line 324 of file request.hh.

◆ _time

Tick Request::_time = MaxTick

private

The time this request was started.

Used to calculate latencies. This field is set to curTick() any time paddr or vaddr is written.

Definition at line 319 of file request.hh.

◆ _vaddr

Addr Request::_vaddr = MaxAddr

private

The virtual address of the request.

Definition at line 342 of file request.hh.

◆ accessDelta

Tick Request::accessDelta = 0

Access latency to complete this memory transaction not including translation time.

Definition at line 526 of file request.hh.

◆ atomicOpFunctor

AtomicOpFunctorPtr Request::atomicOpFunctor = nullptr

private

A pointer to an atomic operation.

Definition at line 359 of file request.hh.

Referenced by Request().

◆ depth

int Request::depth = 0

mutable

Level of the cache hierachy where this request was responded to (e.g.

0 = L1; 1 = L2).

Definition at line 532 of file request.hh.

◆ privateFlags

PrivateFlags Request::privateFlags

private

Private flags for field validity checking.

Definition at line 312 of file request.hh.

◆ STORE_NO_DATA

const FlagsType Request::STORE_NO_DATA

static

Initial value:

= CACHE_BLOCK_ZERO |

CLEAN | INVALIDATE

Definition at line 196 of file request.hh.

Referenced by Minor::LSQ::pushRequest(), LSQUnit< Impl >::write(), AtomicSimpleCPU::writeMem(), TimingSimpleCPU::writeMem(), and CheckerCPU::writeMem().

◆ translateDelta

Tick Request::translateDelta = 0

Time for the TLB/table walker to successfully translate this request.

Definition at line 520 of file request.hh.

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

mem/request.hh

Public Types

Public Member Functions

Public Attributes

Static Public Attributes

Private Types

Private Attributes

Detailed Description

Member Typedef Documentation

◆ ArchFlagsType

◆ Flags

◆ FlagsType

◆ LocalAccessor

◆ MemSpaceConfigFlags

◆ MemSpaceConfigFlagsType

◆ PrivateFlags

◆ PrivateFlagsType

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

◆ anonymous enum

◆ anonymous enum

Constructor & Destructor Documentation

◆ Request() [1/4]

◆ Request() [2/4]

◆ Request() [3/4]

◆ Request() [4/4]

◆ ~Request()

Member Function Documentation

◆ contextId()

◆ extraDataValid()

◆ getAccessDepth()

◆ getAccessLatency()

◆ getArchFlags()

◆ getAtomicOpFunctor()

◆ getByteEnable()

◆ getDest()

◆ getExtraData()

◆ getFlags()

◆ getPaddr()

◆ getPC()

◆ getReqInstSeqNum()

◆ getSize()

◆ getTranslateLatency()

◆ getVaddr()

◆ hasAtomicOpFunctor()

◆ hasContextId()

◆ hasInstSeqNum()

◆ hasPaddr()

◆ hasPC()

◆ hasSize()

◆ hasSubstreamId()

◆ hasVaddr()

◆ incAccessDepth()

◆ isAcquire()

◆ isArgSegment()

◆ isAtomic()

◆ isAtomicNoReturn()

◆ isAtomicReturn()

◆ isCacheClean()

◆ isCacheInvalidate()

◆ isCacheMaintenance()

◆ isCondSwap()

◆ isDeviceScope()

◆ isGlobalSegment()

◆ isGroupSegment()

◆ isInstFetch()

◆ isKernargSegment()

◆ isKernel()

◆ isLLSC()

◆ isLocalAccess()

◆ isLockedRMW()

◆ isMasked()

◆ isPrefetch()

◆ isPrefetchEx()

◆ isPriv()

◆ isPrivateSegment()

◆ isPTWalk()

◆ isReadonlySegment()

◆ isRelease()

◆ isScoped()