2fb632dbda
branch prediction, and makes memory dependence work properly.
SConscript:
Added return address stack, tournament predictor.
cpu/base_cpu.cc:
Added debug break and print statements.
cpu/base_dyn_inst.cc:
cpu/base_dyn_inst.hh:
Comment out possibly unneeded variables.
cpu/beta_cpu/2bit_local_pred.cc:
2bit predictor no longer speculatively updates itself.
cpu/beta_cpu/alpha_dyn_inst.hh:
Comment formatting.
cpu/beta_cpu/alpha_full_cpu.hh:
Formatting
cpu/beta_cpu/alpha_full_cpu_builder.cc:
Added new parameters for branch predictors, and IQ parameters.
cpu/beta_cpu/alpha_full_cpu_impl.hh:
Register stats.
cpu/beta_cpu/alpha_params.hh:
Added parameters for IQ, branch predictors, and store sets.
cpu/beta_cpu/bpred_unit.cc:
Removed one class.
cpu/beta_cpu/bpred_unit.hh:
Add in RAS, stats. Changed branch predictor unit functionality
so that it holds a history of past branches so it can update, and also
hold a proper history of the RAS so it can be restored on branch
mispredicts.
cpu/beta_cpu/bpred_unit_impl.hh:
Added in stats, history of branches, RAS. Now bpred unit actually
modifies the instruction's predicted next PC.
cpu/beta_cpu/btb.cc:
Add in sanity checks.
cpu/beta_cpu/comm.hh:
Add in communication where needed, remove it where it's not.
cpu/beta_cpu/commit.hh:
cpu/beta_cpu/rename.hh:
cpu/beta_cpu/rename_impl.hh:
Add in stats.
cpu/beta_cpu/commit_impl.hh:
Stats, update what is sent back on branch mispredict.
cpu/beta_cpu/cpu_policy.hh:
Change the bpred unit being used.
cpu/beta_cpu/decode.hh:
cpu/beta_cpu/decode_impl.hh:
Stats.
cpu/beta_cpu/fetch.hh:
Stats, change squash so it can handle squashes from decode differently
than squashes from commit.
cpu/beta_cpu/fetch_impl.hh:
Add in stats. Change how a cache line is fetched. Update to work with
caches. Also have separate functions for different behavior if squash
is coming from decode vs commit.
cpu/beta_cpu/free_list.hh:
Remove some old comments.
cpu/beta_cpu/full_cpu.cc:
cpu/beta_cpu/full_cpu.hh:
Added function to remove instructions from back of instruction list
until a certain sequence number.
cpu/beta_cpu/iew.hh:
Stats, separate squashing behavior due to branches vs memory.
cpu/beta_cpu/iew_impl.hh:
Stats, separate squashing behavior for branches vs memory.
cpu/beta_cpu/inst_queue.cc:
Debug stuff
cpu/beta_cpu/inst_queue.hh:
Stats, change how mem dep unit works, debug stuff
cpu/beta_cpu/inst_queue_impl.hh:
Stats, change how mem dep unit works, debug stuff. Also add in
parameters that used to be hardcoded.
cpu/beta_cpu/mem_dep_unit.hh:
cpu/beta_cpu/mem_dep_unit_impl.hh:
Add in stats, change how memory dependence unit works. It now holds
the memory instructions that are waiting for their memory dependences
to resolve. It provides which instructions are ready directly to the
IQ.
cpu/beta_cpu/regfile.hh:
Fix up sanity checks.
cpu/beta_cpu/rename_map.cc:
Fix loop variable type.
cpu/beta_cpu/rob_impl.hh:
Remove intermediate DynInstPtr
cpu/beta_cpu/store_set.cc:
Add in debugging statements.
cpu/beta_cpu/store_set.hh:
Reorder function arguments to match the rest of the calls.
--HG--
extra : convert_revision : aabf9b1fecd1d743265dfc3b174d6159937c6f44
135 lines
2.6 KiB
C++
135 lines
2.6 KiB
C++
#ifndef __ALPHA_SIMPLE_PARAMS_HH__
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#define __ALPHA_SIMPLE_PARAMS_HH__
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#include "cpu/beta_cpu/full_cpu.hh"
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//Forward declarations
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class System;
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class AlphaITB;
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class AlphaDTB;
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class FunctionalMemory;
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class Process;
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class MemInterface;
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/**
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* This file defines the parameters that will be used for the AlphaFullCPU.
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* This must be defined externally so that the Impl can have a params class
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* defined that it can pass to all of the individual stages.
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*/
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class AlphaSimpleParams : public BaseFullCPU::Params
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{
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public:
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#ifdef FULL_SYSTEM
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AlphaITB *itb; AlphaDTB *dtb;
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#else
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std::vector<Process *> workload;
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Process *process;
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short asid;
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#endif // FULL_SYSTEM
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FunctionalMemory *mem;
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//
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// Caches
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//
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MemInterface *icacheInterface;
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MemInterface *dcacheInterface;
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//
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// Fetch
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//
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unsigned decodeToFetchDelay;
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unsigned renameToFetchDelay;
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unsigned iewToFetchDelay;
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unsigned commitToFetchDelay;
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unsigned fetchWidth;
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//
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// Decode
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//
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unsigned renameToDecodeDelay;
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unsigned iewToDecodeDelay;
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unsigned commitToDecodeDelay;
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unsigned fetchToDecodeDelay;
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unsigned decodeWidth;
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//
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// Rename
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//
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unsigned iewToRenameDelay;
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unsigned commitToRenameDelay;
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unsigned decodeToRenameDelay;
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unsigned renameWidth;
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//
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// IEW
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//
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unsigned commitToIEWDelay;
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unsigned renameToIEWDelay;
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unsigned issueToExecuteDelay;
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unsigned issueWidth;
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unsigned executeWidth;
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unsigned executeIntWidth;
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unsigned executeFloatWidth;
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unsigned executeBranchWidth;
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unsigned executeMemoryWidth;
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//
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// Commit
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//
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unsigned iewToCommitDelay;
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unsigned renameToROBDelay;
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unsigned commitWidth;
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unsigned squashWidth;
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//
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// Branch predictor (BP & BTB)
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//
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/*
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unsigned localPredictorSize;
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unsigned localPredictorCtrBits;
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*/
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unsigned local_predictor_size;
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unsigned local_ctr_bits;
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unsigned local_history_table_size;
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unsigned local_history_bits;
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unsigned global_predictor_size;
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unsigned global_ctr_bits;
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unsigned global_history_bits;
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unsigned choice_predictor_size;
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unsigned choice_ctr_bits;
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unsigned BTBEntries;
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unsigned BTBTagSize;
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unsigned RASSize;
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//
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// Load store queue
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//
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unsigned LQEntries;
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unsigned SQEntries;
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//
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// Memory dependence
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//
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unsigned SSITSize;
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unsigned LFSTSize;
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//
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// Miscellaneous
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//
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unsigned numPhysIntRegs;
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unsigned numPhysFloatRegs;
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unsigned numIQEntries;
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unsigned numROBEntries;
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// Probably can get this from somewhere.
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unsigned instShiftAmt;
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bool defReg;
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};
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#endif
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