gem5
v20.1.0.0
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IcachePort class for instruction fetch. More...
#include <fetch.hh>
Public Member Functions | |
IcachePort (DefaultFetch< Impl > *_fetch, FullO3CPU< Impl > *_cpu) | |
Default constructor. More... | |
Public Member Functions inherited from RequestPort | |
RequestPort (const std::string &name, SimObject *_owner, PortID id=InvalidPortID) | |
Request port. More... | |
virtual | ~RequestPort () |
void | bind (Port &peer) override |
Bind this request port to a response port. More... | |
void | unbind () override |
Unbind this request port and the associated response port. More... | |
virtual bool | isSnooping () const |
Determine if this request port is snooping or not. More... | |
AddrRangeList | getAddrRanges () const |
Get the address ranges of the connected responder port. More... | |
void | printAddr (Addr a) |
Inject a PrintReq for the given address to print the state of that address throughout the memory system. More... | |
Tick | sendAtomic (PacketPtr pkt) |
Send an atomic request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More... | |
Tick | sendAtomicBackdoor (PacketPtr pkt, MemBackdoorPtr &backdoor) |
Send an atomic request packet like above, but also request a backdoor to the data being accessed. More... | |
void | sendFunctional (PacketPtr pkt) const |
Send a functional 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 | sendTimingReq (PacketPtr pkt) |
Attempt to send a timing request to the responder port by calling its corresponding receive function. More... | |
bool | tryTiming (PacketPtr pkt) const |
Check if the responder can handle a timing request. More... | |
bool | sendTimingSnoopResp (PacketPtr pkt) |
Attempt to send a timing snoop response packet to the response port by calling its corresponding receive function. More... | |
virtual void | sendRetryResp () |
Send a retry to the response port that previously attempted a sendTimingResp to this request 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 | recvTimingResp (PacketPtr pkt) |
Timing version of receive. More... | |
virtual void | recvReqRetry () |
Handles doing a retry of a failed fetch. More... | |
Protected Member Functions inherited from RequestPort | |
virtual void | recvRangeChange () |
Called to receive an address range change from the peer response port. More... | |
Tick | recvAtomicSnoop (PacketPtr pkt) override |
Default implementations. More... | |
void | recvFunctionalSnoop (PacketPtr pkt) override |
Receive a functional snoop request packet from the peer. More... | |
void | recvTimingSnoopReq (PacketPtr pkt) override |
Receive a timing snoop request from the peer. More... | |
void | recvRetrySnoopResp () override |
Called by the peer if sendTimingSnoopResp was called on this protocol (causing recvTimingSnoopResp to be called on the peer) and was unsuccessful. 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 AtomicRequestProtocol | |
Tick | send (AtomicResponseProtocol *peer, PacketPtr pkt) |
Send an atomic request packet, where the data is moved and the state is updated in zero time, without interleaving with other memory accesses. More... | |
Tick | sendBackdoor (AtomicResponseProtocol *peer, PacketPtr pkt, MemBackdoorPtr &backdoor) |
Send an atomic request packet like above, but also request a backdoor to the data being accessed. More... | |
Protected Member Functions inherited from TimingRequestProtocol | |
bool | sendReq (TimingResponseProtocol *peer, PacketPtr pkt) |
Attempt to send a timing request to the peer by calling its corresponding receive function. More... | |
bool | trySend (TimingResponseProtocol *peer, PacketPtr pkt) const |
Check if the peer can handle a timing request. More... | |
bool | sendSnoopResp (TimingResponseProtocol *peer, PacketPtr pkt) |
Attempt to send a timing snoop response packet to it's peer by calling its corresponding receive function. More... | |
void | sendRetryResp (TimingResponseProtocol *peer) |
Send a retry to the peer that previously attempted a sendTimingResp to this protocol and failed. More... | |
Protected Member Functions inherited from FunctionalRequestProtocol | |
void | send (FunctionalResponseProtocol *peer, PacketPtr pkt) const |
Send a functional 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 | |
DefaultFetch< Impl > * | fetch |
Pointer to fetch. More... | |
Protected Attributes inherited from RequestPort | |
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... | |
IcachePort class for instruction fetch.
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inline |
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protectedvirtual |
Handles doing a retry of a failed fetch.
Implements TimingRequestProtocol.
Definition at line 1653 of file fetch_impl.hh.
References DefaultFetch< Impl >::fetch().
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protectedvirtual |
Timing version of receive.
Handles setting fetch to the proper status to start fetching.
Implements TimingRequestProtocol.
Definition at line 1640 of file fetch_impl.hh.
References Packet::cacheResponding(), DPRINTF, DefaultFetch< Impl >::fetch(), Packet::hasSharers(), and Packet::req.
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protected |