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gem5
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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 | regStats () |
| Register statistics for this object. More... | |
| virtual void | resetStats () |
| Reset statistics associated with this object. 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 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 | |
| EventManager (EventManager &em) | |
| EventManager (EventManager *em) | |
| EventManager (EventQueue *eq) | |
| 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) |
| void | setCurTick (Tick newVal) |
| 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 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 () |
| Get the fully-qualified name of the active section. More... | |
| static void | serializeAll (const std::string &cpt_dir) |
| static void | unserializeGlobals (CheckpointIn &cp) |
| Static Public Attributes inherited from Serializable | |
| static int | ckptCount = 0 |
| static int | ckptMaxCount = 0 |
| static int | ckptPrevCount = -1 |
| 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... | |
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 95 of file func_unit.hh.
| MinorFUTiming::MinorFUTiming | ( | const MinorFUTimingParams * | params | ) |
Definition at line 90 of file func_unit.cc.
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inline |
Does the extra decode in this object support the given op class.
Definition at line 138 of file func_unit.hh.
References opClasses, and MinorOpClassSet::provides().
Referenced by Minor::FUPipeline::findTiming().
| std::string MinorFUTiming::description |
Textual description of the decode's purpose.
Definition at line 104 of file func_unit.hh.
Referenced by Minor::FUPipeline::findTiming().
| 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 119 of file func_unit.hh.
Referenced by Minor::Execute::issue().
| Cycles MinorFUTiming::extraCommitLat |
Extra latency that the instruction should spend at the end of the pipeline.
Definition at line 112 of file func_unit.hh.
Referenced by Minor::Execute::issue().
| TimingExpr* MinorFUTiming::extraCommitLatExpr |
Definition at line 113 of file func_unit.hh.
Referenced by Minor::Execute::issue().
| uint64_t MinorFUTiming::mask |
Mask off the ExtMachInst of an instruction before comparing with match.
Definition at line 100 of file func_unit.hh.
Referenced by Minor::FUPipeline::findTiming(), and Minor::FUPipeline::FUPipeline().
| uint64_t MinorFUTiming::match |
Definition at line 101 of file func_unit.hh.
Referenced by Minor::FUPipeline::findTiming(), and Minor::FUPipeline::FUPipeline().
| MinorOpClassSet* MinorFUTiming::opClasses |
Extra opClasses check (after the FU one)
Definition at line 131 of file func_unit.hh.
Referenced by provides().
| 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 128 of file func_unit.hh.
Referenced by Minor::FUPipeline::FUPipeline(), and Minor::Execute::issue().
| bool MinorFUTiming::suppress |
If true, instructions matching this mask/match should not be issued in this FU.
Definition at line 108 of file func_unit.hh.
Referenced by Minor::Execute::issue().