| from m5.params import * |
| from m5.proxy import * |
| from m5 import build_env |
| from BaseCPU import BaseCPU |
| from Checker import O3Checker |
| from FUPool import * |
| |
| class DerivO3CPU(BaseCPU): |
| type = 'DerivO3CPU' |
| activity = Param.Unsigned(0, "Initial count") |
| numThreads = Param.Unsigned(1, "number of HW thread contexts") |
| |
| if build_env['FULL_SYSTEM']: |
| profile = Param.Latency('0ns', "trace the kernel stack") |
| if build_env['USE_CHECKER']: |
| if not build_env['FULL_SYSTEM']: |
| checker = Param.BaseCPU(O3Checker(workload=Parent.workload, |
| exitOnError=False, |
| updateOnError=True, |
| warnOnlyOnLoadError=False), |
| "checker") |
| else: |
| checker = Param.BaseCPU(O3Checker(exitOnError=False, updateOnError=True, |
| warnOnlyOnLoadError=False), "checker") |
| checker.itb = Parent.itb |
| checker.dtb = Parent.dtb |
| |
| cachePorts = Param.Unsigned("Cache Ports") |
| icache_port = Port("Instruction Port") |
| dcache_port = Port("Data Port") |
| _mem_ports = ['icache_port', 'dcache_port'] |
| |
| decodeToFetchDelay = Param.Unsigned(1, "Decode to fetch delay") |
| renameToFetchDelay = Param.Unsigned(1 ,"Rename to fetch delay") |
| iewToFetchDelay = Param.Unsigned(1, "Issue/Execute/Writeback to fetch " |
| "delay") |
| commitToFetchDelay = Param.Unsigned(1, "Commit to fetch delay") |
| fetchWidth = Param.Unsigned(8, "Fetch width") |
| |
| renameToDecodeDelay = Param.Unsigned(1, "Rename to decode delay") |
| iewToDecodeDelay = Param.Unsigned(1, "Issue/Execute/Writeback to decode " |
| "delay") |
| commitToDecodeDelay = Param.Unsigned(1, "Commit to decode delay") |
| fetchToDecodeDelay = Param.Unsigned(1, "Fetch to decode delay") |
| decodeWidth = Param.Unsigned(8, "Decode width") |
| |
| iewToRenameDelay = Param.Unsigned(1, "Issue/Execute/Writeback to rename " |
| "delay") |
| commitToRenameDelay = Param.Unsigned(1, "Commit to rename delay") |
| decodeToRenameDelay = Param.Unsigned(1, "Decode to rename delay") |
| renameWidth = Param.Unsigned(8, "Rename width") |
| |
| commitToIEWDelay = Param.Unsigned(1, "Commit to " |
| "Issue/Execute/Writeback delay") |
| renameToIEWDelay = Param.Unsigned(2, "Rename to " |
| "Issue/Execute/Writeback delay") |
| issueToExecuteDelay = Param.Unsigned(1, "Issue to execute delay (internal " |
| "to the IEW stage)") |
| dispatchWidth = Param.Unsigned(8, "Dispatch width") |
| issueWidth = Param.Unsigned(8, "Issue width") |
| wbWidth = Param.Unsigned(8, "Writeback width") |
| wbDepth = Param.Unsigned(1, "Writeback depth") |
| fuPool = Param.FUPool(DefaultFUPool(), "Functional Unit pool") |
| |
| iewToCommitDelay = Param.Unsigned(1, "Issue/Execute/Writeback to commit " |
| "delay") |
| renameToROBDelay = Param.Unsigned(1, "Rename to reorder buffer delay") |
| commitWidth = Param.Unsigned(8, "Commit width") |
| squashWidth = Param.Unsigned(8, "Squash width") |
| trapLatency = Param.Tick(13, "Trap latency") |
| fetchTrapLatency = Param.Tick(1, "Fetch trap latency") |
| |
| backComSize = Param.Unsigned(5, "Time buffer size for backwards communication") |
| forwardComSize = Param.Unsigned(5, "Time buffer size for forward communication") |
| |
| predType = Param.String("tournament", "Branch predictor type ('local', 'tournament')") |
| localPredictorSize = Param.Unsigned(2048, "Size of local predictor") |
| localCtrBits = Param.Unsigned(2, "Bits per counter") |
| localHistoryTableSize = Param.Unsigned(2048, "Size of local history table") |
| localHistoryBits = Param.Unsigned(11, "Bits for the local history") |
| globalPredictorSize = Param.Unsigned(8192, "Size of global predictor") |
| globalCtrBits = Param.Unsigned(2, "Bits per counter") |
| globalHistoryBits = Param.Unsigned(13, "Bits of history") |
| choicePredictorSize = Param.Unsigned(8192, "Size of choice predictor") |
| choiceCtrBits = Param.Unsigned(2, "Bits of choice counters") |
| |
| BTBEntries = Param.Unsigned(4096, "Number of BTB entries") |
| BTBTagSize = Param.Unsigned(16, "Size of the BTB tags, in bits") |
| |
| RASSize = Param.Unsigned(16, "RAS size") |
| |
| LQEntries = Param.Unsigned(32, "Number of load queue entries") |
| SQEntries = Param.Unsigned(32, "Number of store queue entries") |
| LFSTSize = Param.Unsigned(1024, "Last fetched store table size") |
| SSITSize = Param.Unsigned(1024, "Store set ID table size") |
| |
| numRobs = Param.Unsigned(1, "Number of Reorder Buffers"); |
| |
| numPhysIntRegs = Param.Unsigned(256, "Number of physical integer registers") |
| numPhysFloatRegs = Param.Unsigned(256, "Number of physical floating point " |
| "registers") |
| numIQEntries = Param.Unsigned(64, "Number of instruction queue entries") |
| numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries") |
| |
| instShiftAmt = Param.Unsigned(2, "Number of bits to shift instructions by") |
| |
| function_trace = Param.Bool(False, "Enable function trace") |
| function_trace_start = Param.Tick(0, "Cycle to start function trace") |
| |
| smtNumFetchingThreads = Param.Unsigned("SMT Number of Fetching Threads") |
| smtFetchPolicy = Param.String("SMT Fetch policy") |
| smtLSQPolicy = Param.String("SMT LSQ Sharing Policy") |
| smtLSQThreshold = Param.String("SMT LSQ Threshold Sharing Parameter") |
| smtIQPolicy = Param.String("SMT IQ Sharing Policy") |
| smtIQThreshold = Param.String("SMT IQ Threshold Sharing Parameter") |
| smtROBPolicy = Param.String("SMT ROB Sharing Policy") |
| smtROBThreshold = Param.String("SMT ROB Threshold Sharing Parameter") |
| smtCommitPolicy = Param.String("SMT Commit Policy") |
