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Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main

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This commit is contained in:
bbracker 2021-04-30 06:26:35 -04:00
commit 1fcd43e844
7 changed files with 23 additions and 11 deletions
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4
wally-pipelined/config/rv32ic/wally-config.vh
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@ -68,8 +68,8 @@
`define BOOTTIMBASE 32'h00000000
`define BOOTTIMRANGE 32'h00003FFF
`define TIMBASE 32'h80000000
`define TIMRANGE 32'h0007FFFF
`define TIMBASE 32'h80000000
`define TIMRANGE 32'h07FFFFFF
`define CLINTBASE 32'h02000000
`define CLINTRANGE 32'h0000FFFF
`define GPIOBASE 32'h10012000

4
wally-pipelined/config/rv64ic/wally-config.vh
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@ -72,8 +72,8 @@
`define BOOTTIMBASE 32'h00000000
`define BOOTTIMRANGE 32'h00003FFF
`define TIMBASE 32'h80000000
`define TIMRANGE 32'h0007FFFF
`define TIMBASE 32'h80000000
`define TIMRANGE 32'h07FFFFFF
`define CLINTBASE 32'h02000000
`define CLINTRANGE 32'h0000FFFF
`define GPIOBASE 32'h10012000

2
wally-pipelined/regression/regression-wally.py
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@ -19,7 +19,7 @@ configs = [
Config(
name="busybear",
cmd="vsim -do wally-busybear-batch.do -c > {}",
grepstr="# loaded 800000 instructions"
grepstr="# loaded 40000 instructions"
),
Config(
name="buildroot",

2
wally-pipelined/src/privileged/csrm.sv
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@ -97,7 +97,7 @@ module csrm #(parameter
);
logic [`XLEN-1:0] MISA_REGW;
logic [`XLEN-1:0] MSCRATCH_REGW,MCAUSE_REGW, MTVAL_REGW;
logic [`XLEN-1:0] MSCRATCH_REGW, MCAUSE_REGW, MTVAL_REGW;
logic [63:0] PMPCFG01_REGW, PMPCFG23_REGW; // 64-bit registers in RV64, or two 32-bit registers in RV32
logic [`XLEN-1:0] PMPADDR_ARRAY_REGW [0:15]; // *** Might have to make 16 individual registers
//logic [`XLEN-1:0] PMPADDR0_REGW;

14
wally-pipelined/src/privileged/trap.sv
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@ -27,7 +27,7 @@
`include "wally-config.vh"
module trap (
input logic reset,
input logic clk, reset,
input logic InstrMisalignedFaultM, InstrAccessFaultM, IllegalInstrFaultM,
input logic BreakpointFaultM, LoadMisalignedFaultM, StoreMisalignedFaultM,
input logic LoadAccessFaultM, StoreAccessFaultM, EcallFaultM, InstrPageFaultM,
@ -40,6 +40,7 @@ module trap (
input logic [`XLEN-1:0] PCM,
input logic [`XLEN-1:0] InstrMisalignedAdrM, MemAdrM,
input logic [31:0] InstrM,
input logic StallW,
output logic TrapM, MTrapM, STrapM, UTrapM, RetM,
output logic InterruptM,
output logic [`XLEN-1:0] PrivilegedNextPCM, CauseM, NextFaultMtvalM
@ -74,11 +75,18 @@ module trap (
// Handle vectored traps (when mtvec/stvec/utvec csr value has bits [1:0] == 01)
// For vectored traps, set program counter to _tvec value + 4 times the cause code
//
// POSSIBLE OPTIMIZATION:
// From 20190608 privielegd spec page 27 (3.1.7)
// > Allowing coarser alignments in Vectored mode enables vectoring to be
// > implemented without a hardware adder circuit.
// For example, we could require m/stvec be aligned on 7 bits to let us replace the adder directly below with
// [untested] PrivilegedVectoredTrapVector = {PrivilegedTrapVector[`XLEN-1:7], CauseM[3:0], 4'b0000}
generate
if(`VECTORED_INTERRUPTS_SUPPORTED) begin
always_comb
if (PrivilegedTrapVector[1:0] == 2'b01 && CauseM[`XLEN-1] == 1)
PrivilegedVectoredTrapVector = {PrivilegedTrapVector[`XLEN-1:2] + CauseM[`XLEN-3:0], 2'b00};
PrivilegedVectoredTrapVector = {PrivilegedTrapVector[`XLEN-1:2] + {CauseM[`XLEN-5:0], 2'b00}, 2'b00};
else
PrivilegedVectoredTrapVector = {PrivilegedTrapVector[`XLEN-1:2], 2'b00};
end
@ -91,7 +99,7 @@ module trap (
if (mretM) PrivilegedNextPCM = MEPC_REGW;
else if (sretM) PrivilegedNextPCM = SEPC_REGW;
else if (uretM) PrivilegedNextPCM = UEPC_REGW;
else PrivilegedNextPCM = PrivilegedTrapVector;
else PrivilegedNextPCM = PrivilegedVectoredTrapVector;
// Cause priority defined in table 3.7 of 20190608 privileged spec
// Exceptions are of lower priority than all interrupts (3.1.9)

6
wally-pipelined/testbench/function_radix.sv
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@ -110,6 +110,8 @@ module FunctionName(reset, clk, ProgramAddrMapFile, ProgramLabelMapFile);
integer ProgramAddrMapLineCount, ProgramLabelMapLineCount;
longint ProgramAddrMapLine;
string ProgramLabelMapLine;
integer status;
// preload
// initial begin
@ -123,7 +125,7 @@ module FunctionName(reset, clk, ProgramAddrMapFile, ProgramLabelMapFile);
// read line by line to count lines
if (ProgramAddrMapFP) begin
while (! $feof(ProgramAddrMapFP)) begin
$fscanf(ProgramAddrMapFP, "%h\n", ProgramAddrMapLine);
status = $fscanf(ProgramAddrMapFP, "%h\n", ProgramAddrMapLine);
ProgramAddrMapLineCount = ProgramAddrMapLineCount + 1;
end
@ -141,7 +143,7 @@ module FunctionName(reset, clk, ProgramAddrMapFile, ProgramLabelMapFile);
if (ProgramLabelMapFP) begin
while (! $feof(ProgramLabelMapFP)) begin
$fscanf(ProgramLabelMapFP, "%s\n", ProgramLabelMapLine);
status = $fscanf(ProgramLabelMapFP, "%s\n", ProgramLabelMapLine);
ProgramLabelMapMemory[ProgramLabelMapLineCount] = ProgramLabelMapLine;
ProgramLabelMapLineCount = ProgramLabelMapLineCount + 1;
end

2
wally-pipelined/testbench/testbench-imperas.sv
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@ -351,6 +351,7 @@ module testbench();
"rv64p/WALLY-SEPC", "4000",
"rv64p/WALLY-MTVAL", "6000",
"rv64p/WALLY-STVAL", "4000",
"rv64p/WALLY-MTVEC", "2000",
"rv64p/WALLY-MARCHID", "4000",
"rv64p/WALLY-MIMPID", "4000",
"rv64p/WALLY-MHARTID", "4000",
@ -371,6 +372,7 @@ module testbench();
"rv32p/WALLY-MHARTID", "4000",
"rv32p/WALLY-MVENDORID", "4000"
//"rv32p/WALLY-MEDELEG", "4000" // all 32 bit tests are currently failing, so haven't been able to confirm this test works yet. It should, though.
//"rv32p/WALLY-MTVEC", "2000" // all 32 bit tests are currently failing, so haven't been able to confirm this test works yet. It should, though.
};
string tests64periph[] = '{