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Added the i and d cache cycle counters.

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This commit is contained in:
Ross Thompson 2023-03-02 23:54:56 -06:00
parent cfca77172e
commit aabb454d1c
6 changed files with 19 additions and 11 deletions
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2
src/ifu/ifu.sv
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@ -69,6 +69,7 @@ module ifu (
output logic BTBPredPCWrongM, // Prediction target wrong output logic BTBPredPCWrongM, // Prediction target wrong
output logic RASPredPCWrongM, // RAS prediction is wrong output logic RASPredPCWrongM, // RAS prediction is wrong
output logic IClassWrongM, // Class prediction is wrong output logic IClassWrongM, // Class prediction is wrong
output logic ICacheStallF, // I$ busy with multicycle operation
// Faults // Faults
input logic IllegalBaseInstrD, // Illegal non-compressed instruction input logic IllegalBaseInstrD, // Illegal non-compressed instruction
input logic IllegalFPUInstrD, // Illegal FP instruction input logic IllegalFPUInstrD, // Illegal FP instruction
@ -127,7 +128,6 @@ module ifu (
logic CacheableF; // PMA indicates instruction address is cacheable logic CacheableF; // PMA indicates instruction address is cacheable
logic SelNextSpillF; // In a spill, stall pipeline and gate local stallF logic SelNextSpillF; // In a spill, stall pipeline and gate local stallF
logic BusStall; // Bus interface busy with multicycle operation logic BusStall; // Bus interface busy with multicycle operation
logic ICacheStallF; // I$ busy with multicycle operation
logic IFUCacheBusStallD; // EIther I$ or bus busy with multicycle operation logic IFUCacheBusStallD; // EIther I$ or bus busy with multicycle operation
logic GatedStallD; // StallD gated by selected next spill logic GatedStallD; // StallD gated by selected next spill
// branch predictor signal // branch predictor signal

2
src/lsu/lsu.sv
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@ -54,6 +54,7 @@ module lsu (
input logic [1:0] PrivilegeModeW, // Current privilege mode input logic [1:0] PrivilegeModeW, // Current privilege mode
input logic BigEndianM, // Swap byte order to big endian input logic BigEndianM, // Swap byte order to big endian
input logic sfencevmaM, // Virtual memory address fence, invalidate TLB entries input logic sfencevmaM, // Virtual memory address fence, invalidate TLB entries
output logic DCacheStallM, // D$ busy with multicycle operation
// fpu // fpu
input logic [`FLEN-1:0] FWriteDataM, // Write data from FPU input logic [`FLEN-1:0] FWriteDataM, // Write data from FPU
input logic FpLoadStoreM, // Selects FPU as store for write data input logic FpLoadStoreM, // Selects FPU as store for write data
@ -103,7 +104,6 @@ module lsu (
logic GatedStallW; // Hazard unit StallW gated when SelHPTW = 1 logic GatedStallW; // Hazard unit StallW gated when SelHPTW = 1
logic DCacheStallM; // D$ busy with multicycle operation
logic BusStall; // Bus interface busy with multicycle operation logic BusStall; // Bus interface busy with multicycle operation
logic HPTWStall; // HPTW busy with multicycle operation logic HPTWStall; // HPTW busy with multicycle operation

4
src/privileged/csr.sv
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@ -59,6 +59,8 @@ module csr #(parameter
// inputs for performance counters // inputs for performance counters
input logic LoadStallD, input logic LoadStallD,
input logic StoreStallD, input logic StoreStallD,
input logic ICacheStallF,
input logic DCacheStallM,
input logic BPDirPredWrongM, input logic BPDirPredWrongM,
input logic BTBPredPCWrongM, input logic BTBPredPCWrongM,
input logic RASPredPCWrongM, input logic RASPredPCWrongM,
@ -264,7 +266,7 @@ module csr #(parameter
.InstrValidNotFlushedM, .LoadStallD, .StoreStallD, .CSRWriteM, .CSRMWriteM, .InstrValidNotFlushedM, .LoadStallD, .StoreStallD, .CSRWriteM, .CSRMWriteM,
.BPDirPredWrongM, .BTBPredPCWrongM, .RASPredPCWrongM, .IClassWrongM, .BPWrongM, .BPDirPredWrongM, .BTBPredPCWrongM, .RASPredPCWrongM, .IClassWrongM, .BPWrongM,
.InstrClassM, .DCacheMiss, .DCacheAccess, .ICacheMiss, .ICacheAccess, .sfencevmaM, .InstrClassM, .DCacheMiss, .DCacheAccess, .ICacheMiss, .ICacheAccess, .sfencevmaM,
.InterruptM, .ExceptionM, .FenceM, .InterruptM, .ExceptionM, .FenceM, .ICacheStallF, .DCacheStallM,
.CSRAdrM, .PrivilegeModeW, .CSRWriteValM, .CSRAdrM, .PrivilegeModeW, .CSRWriteValM,
.MCOUNTINHIBIT_REGW, .MCOUNTEREN_REGW, .SCOUNTEREN_REGW, .MCOUNTINHIBIT_REGW, .MCOUNTEREN_REGW, .SCOUNTEREN_REGW,
.MTIME_CLINT, .CSRCReadValM, .IllegalCSRCAccessM); .MTIME_CLINT, .CSRCReadValM, .IllegalCSRCAccessM);

6
src/privileged/csrc.sv
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@ -55,6 +55,8 @@ module csrc #(parameter
input logic DCacheAccess, input logic DCacheAccess,
input logic ICacheMiss, input logic ICacheMiss,
input logic ICacheAccess, input logic ICacheAccess,
input logic ICacheStallF,
input logic DCacheStallM,
input logic sfencevmaM, input logic sfencevmaM,
input logic InterruptM, input logic InterruptM,
input logic ExceptionM, input logic ExceptionM,
@ -102,10 +104,10 @@ module csrc #(parameter
assign CounterEvent[12] = StoreStallM & InstrValidNotFlushedM; // Store Stall assign CounterEvent[12] = StoreStallM & InstrValidNotFlushedM; // Store Stall
assign CounterEvent[13] = DCacheAccess & InstrValidNotFlushedM; // data cache access assign CounterEvent[13] = DCacheAccess & InstrValidNotFlushedM; // data cache access
assign CounterEvent[14] = DCacheMiss; // data cache miss. Miss asserted 1 cycle at start of cache miss assign CounterEvent[14] = DCacheMiss; // data cache miss. Miss asserted 1 cycle at start of cache miss
assign CounterEvent[15] = '0; // //// ******* d cache miss cycles assign CounterEvent[15] = DCacheStallM; // d cache miss cycles
assign CounterEvent[16] = ICacheAccess & InstrValidNotFlushedM; // instruction cache access assign CounterEvent[16] = ICacheAccess & InstrValidNotFlushedM; // instruction cache access
assign CounterEvent[17] = ICacheMiss; // instruction cache miss. Miss asserted 1 cycle at start of cache miss assign CounterEvent[17] = ICacheMiss; // instruction cache miss. Miss asserted 1 cycle at start of cache miss
assign CounterEvent[18] = '0; // //// ******** i cache miss cycles assign CounterEvent[18] = ICacheStallF; // i cache miss cycles
assign CounterEvent[19] = CSRWriteM & InstrValidNotFlushedM; // CSR writes assign CounterEvent[19] = CSRWriteM & InstrValidNotFlushedM; // CSR writes
assign CounterEvent[20] = FenceM & InstrValidNotFlushedM; // fence.i assign CounterEvent[20] = FenceM & InstrValidNotFlushedM; // fence.i
assign CounterEvent[21] = sfencevmaM & InstrValidNotFlushedM; // sfence.vma assign CounterEvent[21] = sfencevmaM & InstrValidNotFlushedM; // sfence.vma

6
src/privileged/privileged.sv
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@ -46,7 +46,9 @@ module privileged (
// processor events for performance counter logging // processor events for performance counter logging
input logic FRegWriteM, // instruction will write floating-point registers input logic FRegWriteM, // instruction will write floating-point registers
input logic LoadStallD, // load instruction is stalling input logic LoadStallD, // load instruction is stalling
input logic StoreStallD, // load instruction is stalling input logic StoreStallD, // store instruction is stalling
input logic ICacheStallF, // I cache stalled
input logic DCacheStallM, // D cache stalled
input logic BPDirPredWrongM, // branch predictor guessed wrong direction input logic BPDirPredWrongM, // branch predictor guessed wrong direction
input logic BTBPredPCWrongM, // branch predictor guessed wrong target input logic BTBPredPCWrongM, // branch predictor guessed wrong target
input logic RASPredPCWrongM, // return adddress stack guessed wrong target input logic RASPredPCWrongM, // return adddress stack guessed wrong target
@ -127,7 +129,7 @@ module privileged (
.MTimerInt, .MExtInt, .SExtInt, .MSwInt, .MTimerInt, .MExtInt, .SExtInt, .MSwInt,
.MTIME_CLINT, .InstrValidM, .FRegWriteM, .LoadStallD, .StoreStallD, .MTIME_CLINT, .InstrValidM, .FRegWriteM, .LoadStallD, .StoreStallD,
.BPDirPredWrongM, .BTBPredPCWrongM, .RASPredPCWrongM, .BPWrongM, .BPDirPredWrongM, .BTBPredPCWrongM, .RASPredPCWrongM, .BPWrongM,
.sfencevmaM, .ExceptionM, .FenceM, .sfencevmaM, .ExceptionM, .FenceM, .ICacheStallF, .DCacheStallM,
.IClassWrongM, .InstrClassM, .DCacheMiss, .DCacheAccess, .ICacheMiss, .ICacheAccess, .IClassWrongM, .InstrClassM, .DCacheMiss, .DCacheAccess, .ICacheMiss, .ICacheAccess,
.NextPrivilegeModeM, .PrivilegeModeW, .CauseM, .SelHPTW, .NextPrivilegeModeM, .PrivilegeModeW, .CauseM, .SelHPTW,
.STATUS_MPP, .STATUS_SPP, .STATUS_TSR, .STATUS_TVM, .STATUS_MPP, .STATUS_SPP, .STATUS_TSR, .STATUS_TVM,

6
src/wally/wallypipelinedcore.sv
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@ -162,12 +162,13 @@ module wallypipelinedcore (
logic CommittedF; logic CommittedF;
logic BranchD, BranchE, JumpD, JumpE; logic BranchD, BranchE, JumpD, JumpE;
logic FenceM; logic FenceM;
logic DCacheStallM, ICacheStallF;
// instruction fetch unit: PC, branch prediction, instruction cache // instruction fetch unit: PC, branch prediction, instruction cache
ifu ifu(.clk, .reset, ifu ifu(.clk, .reset,
.StallF, .StallD, .StallE, .StallM, .StallW, .FlushD, .FlushE, .FlushM, .FlushW, .StallF, .StallD, .StallE, .StallM, .StallW, .FlushD, .FlushE, .FlushM, .FlushW,
.InstrValidM, .InstrValidE, .InstrValidD, .InstrValidM, .InstrValidE, .InstrValidD,
.BranchD, .BranchE, .JumpD, .JumpE, .BranchD, .BranchE, .JumpD, .JumpE, .ICacheStallF,
// Fetch // Fetch
.HRDATA, .PCFSpill, .IFUHADDR, .PC2NextF, .HRDATA, .PCFSpill, .IFUHADDR, .PC2NextF,
.IFUStallF, .IFUHBURST, .IFUHTRANS, .IFUHSIZE, .IFUHREADY, .IFUHWRITE, .IFUStallF, .IFUHBURST, .IFUHTRANS, .IFUHSIZE, .IFUHREADY, .IFUHWRITE,
@ -231,6 +232,7 @@ module wallypipelinedcore (
.STATUS_MPRV, // from csr .STATUS_MPRV, // from csr
.STATUS_MPP, // from csr .STATUS_MPP, // from csr
.sfencevmaM, // connects to privilege .sfencevmaM, // connects to privilege
.DCacheStallM, // connects to privilege
.LoadPageFaultM, // connects to privilege .LoadPageFaultM, // connects to privilege
.StoreAmoPageFaultM, // connects to privilege .StoreAmoPageFaultM, // connects to privilege
.LoadMisalignedFaultM, // connects to privilege .LoadMisalignedFaultM, // connects to privilege
@ -286,7 +288,7 @@ module wallypipelinedcore (
.FlushD, .FlushE, .FlushM, .FlushW, .StallD, .StallE, .StallM, .StallW, .FlushD, .FlushE, .FlushM, .FlushW, .StallD, .StallE, .StallM, .StallW,
.CSRReadM, .CSRWriteM, .SrcAM, .PCM, .PC2NextF, .CSRReadM, .CSRWriteM, .SrcAM, .PCM, .PC2NextF,
.InstrM, .CSRReadValW, .UnalignedPCNextF, .InstrM, .CSRReadValW, .UnalignedPCNextF,
.RetM, .TrapM, .sfencevmaM, .FenceM, .RetM, .TrapM, .sfencevmaM, .FenceM, .DCacheStallM, .ICacheStallF,
.InstrValidM, .CommittedM, .CommittedF, .InstrValidM, .CommittedM, .CommittedF,
.FRegWriteM, .LoadStallD, .StoreStallD, .FRegWriteM, .LoadStallD, .StoreStallD,
.BPDirPredWrongM, .BTBPredPCWrongM, .BPWrongM, .BPDirPredWrongM, .BTBPredPCWrongM, .BPWrongM,