Extra timing capability to allow individual ops to have their source register dependency latencies tweaked based on the ExtMachInst of the source instruction. More...
#include <func_unit.hh>
Public Member Functions | |
| MinorFUTiming (const MinorFUTimingParams *params) | |
| bool | provides (OpClass op_class) |
| Does the extra decode in this object support the given op class. More... | |
 Public Member Functions inherited from SimObject | |
| const Params * | params () const |
| SimObject (const Params *_params) | |
| virtual | ~SimObject () |
| virtual const std::string | name () const |
| virtual void | init () |
| init() is called after all C++ SimObjects have been created and all ports are connected. More... | |
| virtual void | loadState (CheckpointIn &cp) |
| loadState() is called on each SimObject when restoring from a checkpoint. More... | |
| virtual void | initState () |
| initState() is called on each SimObject when not restoring from a checkpoint. More... | |
| virtual void | regProbePoints () |
| Register probe points for this object. More... | |
| virtual void | regProbeListeners () |
| Register probe listeners for this object. More... | |
| ProbeManager * | getProbeManager () |
| Get the probe manager for this object. More... | |
| virtual Port & | getPort (const std::string &if_name, PortID idx=InvalidPortID) |
| Get a port with a given name and index. More... | |
| virtual void | startup () |
| startup() is the final initialization call before simulation. More... | |
| DrainState | drain () override |
| Provide a default implementation of the drain interface for objects that don't need draining. More... | |
| virtual void | memWriteback () |
| Write back dirty buffers to memory using functional writes. More... | |
| virtual void | memInvalidate () |
| Invalidate the contents of memory buffers. More... | |
| void | serialize (CheckpointOut &cp) const override |
| Serialize an object. More... | |
| void | unserialize (CheckpointIn &cp) override |
| Unserialize an object. More... | |
| Public Member Functions inherited from 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. More... | |
| void | setCurTick (Tick newVal) |
| EventManager (EventManager &em) | |
| Event manger manages events in the event queue. More... | |
| EventManager (EventManager *em) | |
| EventManager (EventQueue *eq) | |
| Public Member Functions inherited from Serializable | |
| Serializable () | |
| virtual | ~Serializable () |
| void | serializeSection (CheckpointOut &cp, const char *name) const |
| Serialize an object into a new section. More... | |
| void | serializeSection (CheckpointOut &cp, const std::string &name) const |
| void | unserializeSection (CheckpointIn &cp, const char *name) |
| Unserialize an a child object. More... | |
| void | unserializeSection (CheckpointIn &cp, const std::string &name) |
| Public Member Functions inherited from Drainable | |
| DrainState | drainState () const |
| Return the current drain state of an object. More... | |
| virtual void | notifyFork () |
| Notify a child process of a fork. More... | |
| Public Member Functions inherited from Stats::Group | |
| Group (Group *parent, const char *name=nullptr) | |
| Construct a new statistics group. More... | |
| virtual | ~Group () |
| virtual void | regStats () |
| Callback to set stat parameters. More... | |
| virtual void | resetStats () |
| Callback to reset stats. More... | |
| virtual void | preDumpStats () |
| Callback before stats are dumped. More... | |
| void | addStat (Stats::Info *info) |
| Register a stat with this group. More... | |
| const std::map< std::string, Group * > & | getStatGroups () const |
| Get all child groups associated with this object. More... | |
| const std::vector< Info * > & | getStats () const |
| Get all stats associated with this object. More... | |
| void | addStatGroup (const char *name, Group *block) |
| Add a stat block as a child of this block. More... | |
| const Info * | resolveStat (std::string name) const |
| Resolve a stat by its name within this group. More... | |
| Group ()=delete | |
| Group (const Group &)=delete | |
| Group & | operator= (const Group &)=delete |
Public Attributes | |
| uint64_t | mask |
| Mask off the ExtMachInst of an instruction before comparing with match. More... | |
| uint64_t | match |
| std::string | description |
| Textual description of the decode's purpose. More... | |
| bool | suppress |
| If true, instructions matching this mask/match should not be issued in this FU. More... | |
| Cycles | extraCommitLat |
| Extra latency that the instruction should spend at the end of the pipeline. More... | |
| TimingExpr * | extraCommitLatExpr |
| Cycles | extraAssumedLat |
| Extra delay that results should show in the scoreboard after leaving the pipeline. More... | |
| std::vector< Cycles > | srcRegsRelativeLats |
| Cycle offsets from the scoreboard delivery times of register values for each of this instruction's source registers (in srcRegs order). More... | |
| MinorOpClassSet * | opClasses |
| Extra opClasses check (after the FU one) More... | |
Additional Inherited Members | |
| Public Types inherited from SimObject | |
| typedef SimObjectParams | Params |
| Static Public Member Functions inherited from SimObject | |
| static void | serializeAll (CheckpointOut &cp) |
| Serialize all SimObjects in the system. More... | |
| static SimObject * | find (const char *name) |
| Find the SimObject with the given name and return a pointer to it. More... | |
| Static Public Member Functions inherited from Serializable | |
| static const std::string & | currentSection () |
| Gets the fully-qualified name of the active section. More... | |
| static void | serializeAll (const std::string &cpt_dir) |
| Serializes all the SimObjects. More... | |
| static void | unserializeGlobals (CheckpointIn &cp) |
| Protected Member Functions inherited from Drainable | |
| Drainable () | |
| virtual | ~Drainable () |
| virtual void | drainResume () |
| Resume execution after a successful drain. More... | |
| void | signalDrainDone () const |
| Signal that an object is drained. More... | |
| Protected Attributes inherited from SimObject | |
| const SimObjectParams * | _params |
| Cached copy of the object parameters. More... | |
| Protected Attributes inherited from EventManager | |
| EventQueue * | eventq |
| A pointer to this object's event queue. More... | |
Detailed Description
Extra timing capability to allow individual ops to have their source register dependency latencies tweaked based on the ExtMachInst of the source instruction.
Definition at line 93 of file func_unit.hh.
Constructor & Destructor Documentation
◆ MinorFUTiming()
| MinorFUTiming::MinorFUTiming | ( | const MinorFUTimingParams * | params | ) |
Definition at line 88 of file func_unit.cc.
Member Function Documentation
◆ provides()
|
inline |
Does the extra decode in this object support the given op class.
Definition at line 136 of file func_unit.hh.
References opClasses, and MinorOpClassSet::provides().
Referenced by Minor::FUPipeline::findTiming().
Member Data Documentation
◆ description
| std::string MinorFUTiming::description |
Textual description of the decode's purpose.
Definition at line 102 of file func_unit.hh.
Referenced by Minor::FUPipeline::findTiming().
◆ extraAssumedLat
| Cycles MinorFUTiming::extraAssumedLat |
Extra delay that results should show in the scoreboard after leaving the pipeline.
If set to Cycles(0) for memory references, an 'unpredictable' return time will be set in the scoreboard blocking following dependent instructions from issuing
Definition at line 117 of file func_unit.hh.
Referenced by Minor::Execute::issue().
◆ extraCommitLat
| Cycles MinorFUTiming::extraCommitLat |
Extra latency that the instruction should spend at the end of the pipeline.
Definition at line 110 of file func_unit.hh.
Referenced by Minor::Execute::issue().
◆ extraCommitLatExpr
| TimingExpr* MinorFUTiming::extraCommitLatExpr |
Definition at line 111 of file func_unit.hh.
Referenced by Minor::Execute::issue().
◆ mask
| uint64_t MinorFUTiming::mask |
Mask off the ExtMachInst of an instruction before comparing with match.
Definition at line 98 of file func_unit.hh.
Referenced by Minor::FUPipeline::findTiming(), and Minor::FUPipeline::FUPipeline().
◆ match
| uint64_t MinorFUTiming::match |
Definition at line 99 of file func_unit.hh.
Referenced by Minor::FUPipeline::findTiming(), and Minor::FUPipeline::FUPipeline().
◆ opClasses
| MinorOpClassSet* MinorFUTiming::opClasses |
Extra opClasses check (after the FU one)
Definition at line 129 of file func_unit.hh.
Referenced by provides().
◆ srcRegsRelativeLats
| std::vector<Cycles> MinorFUTiming::srcRegsRelativeLats |
Cycle offsets from the scoreboard delivery times of register values for each of this instruction's source registers (in srcRegs order).
The offsets are subtracted from the scoreboard returnCycle times. For example, for an instruction type with 3 source registers, [2, 1, 2] will allow the instruction to issue upto 2 cycles early for dependencies on the 1st and 3rd register and upto 1 cycle early on the 2nd.
Definition at line 126 of file func_unit.hh.
Referenced by Minor::FUPipeline::FUPipeline(), and Minor::Execute::issue().
◆ suppress
| bool MinorFUTiming::suppress |
If true, instructions matching this mask/match should not be issued in this FU.
Definition at line 106 of file func_unit.hh.
Referenced by Minor::Execute::issue().
The documentation for this class was generated from the following files:
- cpu/minor/func_unit.hh
- cpu/minor/func_unit.cc