gem5
v20.1.0.0
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#include <gpu_tlb.hh>
Public Member Functions | |
CpuSidePort (const std::string &_name, GpuTLB *gpu_TLB, PortID _index) | |
Public Member Functions inherited from ResponsePort | |
ResponsePort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID) | |
Response port. More... | |
virtual | ~ResponsePort () |
bool | isSnooping () const |
Find out if the peer request port is snooping or not. More... | |
void | sendRangeChange () const |
Called by the owner to send a range change. More... | |
void | unbind () override |
We let the request port do the work, so these don't do anything. More... | |
void | bind (Port &peer) override |
Attach to a peer port. More... | |
Tick | sendAtomicSnoop (PacketPtr pkt) |
Send an atomic snoop request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More... | |
void | sendFunctionalSnoop (PacketPtr pkt) const |
Send a functional snoop request packet, where the data is instantly updated everywhere in the memory system, without affecting the current state of any block or moving the block. More... | |
bool | sendTimingResp (PacketPtr pkt) |
Attempt to send a timing response to the request port by calling its corresponding receive function. More... | |
void | sendTimingSnoopReq (PacketPtr pkt) |
Attempt to send a timing snoop request packet to the request port by calling its corresponding receive function. More... | |
void | sendRetryReq () |
Send a retry to the request port that previously attempted a sendTimingReq to this response port and failed. More... | |
void | sendRetrySnoopResp () |
Send a retry to the request port that previously attempted a sendTimingSnoopResp to this response port and failed. More... | |
Public Member Functions inherited from Port | |
virtual | ~Port () |
Virtual destructor due to inheritance. More... | |
Port & | getPeer () |
Return a reference to this port's peer. More... | |
const std::string | name () const |
Return port name (for DPRINTF). More... | |
PortID | getId () const |
Get the port id. More... | |
bool | isConnected () const |
Is this port currently connected to a peer? More... | |
void | takeOverFrom (Port *old) |
A utility function to make it easier to swap out ports. More... | |
Protected Member Functions | |
virtual bool | recvTimingReq (PacketPtr pkt) |
recvTiming receives a coalesced timing request from a TLBCoalescer and it calls issueTLBLookup() It only rejects the packet if we have exceeded the max outstanding number of requests for the TLB More... | |
virtual Tick | recvAtomic (PacketPtr pkt) |
Receive an atomic request packet from the peer. More... | |
virtual void | recvFunctional (PacketPtr pkt) |
Receive a functional request packet from the peer. More... | |
virtual void | recvRangeChange () |
virtual void | recvReqRetry () |
virtual void | recvRespRetry () |
Called by the peer if sendTimingResp was called on this protocol (causing recvTimingResp to be called on the peer) and was unsuccessful. More... | |
virtual AddrRangeList | getAddrRanges () const |
Get a list of the non-overlapping address ranges the owner is responsible for. More... | |
Protected Member Functions inherited from ResponsePort | |
void | responderUnbind () |
Called by the request port to unbind. More... | |
void | responderBind (RequestPort &request_port) |
Called by the request port to bind. More... | |
Tick | recvAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor) override |
Default implementations. More... | |
bool | tryTiming (PacketPtr pkt) override |
Availability request from the peer. More... | |
bool | recvTimingSnoopResp (PacketPtr pkt) override |
Receive a timing snoop response from the peer. More... | |
Protected Member Functions inherited from Port | |
void | reportUnbound () const |
Port (const std::string &_name, PortID _id) | |
Abstract base class for ports. More... | |
Protected Member Functions inherited from AtomicResponseProtocol | |
Tick | sendSnoop (AtomicRequestProtocol *peer, PacketPtr pkt) |
Send an atomic snoop request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More... | |
Protected Member Functions inherited from TimingResponseProtocol | |
bool | sendResp (TimingRequestProtocol *peer, PacketPtr pkt) |
Attempt to send a timing response to the peer by calling its corresponding receive function. More... | |
void | sendSnoopReq (TimingRequestProtocol *peer, PacketPtr pkt) |
Attempt to send a timing snoop request packet to the peer by calling its corresponding receive function. More... | |
void | sendRetryReq (TimingRequestProtocol *peer) |
Send a retry to the peer that previously attempted a sendTimingReq to this protocol and failed. More... | |
void | sendRetrySnoopResp (TimingRequestProtocol *peer) |
Send a retry to the peer that previously attempted a sendTimingSnoopResp to this peer and failed. More... | |
Protected Member Functions inherited from FunctionalResponseProtocol | |
void | sendSnoop (FunctionalRequestProtocol *peer, PacketPtr pkt) const |
Send a functional snoop request packet, where the data is instantly updated everywhere in the memory system, without affecting the current state of any block or moving the block. More... | |
Protected Attributes | |
GpuTLB * | tlb |
int | index |
Protected Attributes inherited from ResponsePort | |
SimObject & | owner |
Protected Attributes inherited from Port | |
const PortID | id |
A numeric identifier to distinguish ports in a vector, and set to InvalidPortID in case this port is not part of a vector. More... | |
Port * | _peer |
A pointer to this port's peer. More... | |
bool | _connected |
Whether this port is currently connected to a peer port. More... | |
Definition at line 239 of file gpu_tlb.hh.
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inline |
Definition at line 242 of file gpu_tlb.hh.
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protectedvirtual |
Get a list of the non-overlapping address ranges the owner is responsible for.
All response ports must override this function and return a populated list with at least one item.
Implements ResponsePort.
Definition at line 1325 of file gpu_tlb.cc.
Receive an atomic request packet from the peer.
Implements AtomicResponseProtocol.
Definition at line 251 of file gpu_tlb.hh.
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protectedvirtual |
Receive a functional request packet from the peer.
Implements FunctionalResponseProtocol.
Definition at line 1204 of file gpu_tlb.cc.
References DPRINTF, BaseTLB::Execute, ThreadContext::getProcessPtr(), X86ISA::GpuTLB::TranslationState::hitLevel, X86ISA::p, EmulationPageTable::Entry::paddr, X86ISA::TlbEntry::paddr, ArmISA::PageBytes, X86ISA::GpuTLB::TranslationState::prefetch, Packet::req, X86ISA::GpuTLB::TranslationState::reqCnt, roundDown(), Packet::senderState, X86ISA::GpuTLB::TranslationState::tc, X86ISA::GpuTLB::tlb, X86ISA::GpuTLB::TLB_HIT, X86ISA::GpuTLB::TLB_MISS, X86ISA::GpuTLB::TranslationState::tlbEntry, X86ISA::GpuTLB::TranslationState::tlbMode, X86ISA::TlbEntry::vaddr, and MipsISA::vaddr.
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inlineprotectedvirtual |
Definition at line 253 of file gpu_tlb.hh.
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protectedvirtual |
Definition at line 1317 of file gpu_tlb.cc.
References panic.
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inlineprotectedvirtual |
Called by the peer if sendTimingResp was called on this protocol (causing recvTimingResp to be called on the peer) and was unsuccessful.
Implements TimingResponseProtocol.
Definition at line 255 of file gpu_tlb.hh.
References panic.
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protectedvirtual |
recvTiming receives a coalesced timing request from a TLBCoalescer and it calls issueTLBLookup() It only rejects the packet if we have exceeded the max outstanding number of requests for the TLB
Implements TimingResponseProtocol.
Definition at line 1109 of file gpu_tlb.cc.
References DPRINTF, and X86ISA::GpuTLB::tlb.
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protected |
Definition at line 248 of file gpu_tlb.hh.
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protected |
Definition at line 247 of file gpu_tlb.hh.