Github_Repos/cvw
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Merge branch 'main' of https://github.com/openhwgroup/cvw

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This commit is contained in:
Ross Thompson 2023-05-11 14:56:53 -05:00
commit 2612ca4062
7 changed files with 69 additions and 47 deletions
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2
README.md
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@ -33,7 +33,7 @@ Then clone the repo, source setup, make the tests and run regression
On the Linux computer where you will be working, log in
Clone your fork of the repo and run the setup script.
Clone your fork of the repo and run the setup script. Change <yourgithubid> to your github id.
$ cd
$ git clone --recurse-submodules https://github.com/<yourgithubid>/cvw

2
addins/riscv-arch-test

@ -1 +1 @@
Subproject commit a3b7f0c2cf89652b8a0cba3146890c512ff8ba44
Subproject commit 873d16e748ad60023dcdda3926144957c096e31d

38
bin/wally-tool-chain-install.sh
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@ -29,7 +29,7 @@
# Use /opt/riscv for installation - may require running script with sudo
export RISCV="${1:-/opt/riscv}"
export PATH=$PATH:$RISCV/bin
export PATH=$PATH:$RISCV/bin:/usr/bin
set -e # break on error
@ -40,20 +40,20 @@ NUM_THREADS=8 # for >= 32GiB
#NUM_THREADS=16 # for >= 64GiB
sudo mkdir -p $RISCV
# *** need to update permissions to local user
# Update and Upgrade tools (see https://itsfoss.com/apt-update-vs-upgrade/)
apt update -y
apt upgrade -y
apt install -y git gawk make texinfo bison flex build-essential python3 libz-dev libexpat-dev autoconf device-tree-compiler ninja-build libpixman-1-dev ncurses-base ncurses-bin libncurses5-dev dialog curl wget ftp libgmp-dev libglib2.0-dev python3-pip pkg-config opam z3 zlib1g-dev verilator
sudo apt update -y
sudo apt upgrade -y
sudo apt install -y git gawk make texinfo bison flex build-essential python3 libz-dev libexpat-dev autoconf device-tree-compiler ninja-build libpixman-1-dev ncurses-base ncurses-bin libncurses5-dev dialog curl wget ftp libgmp-dev libglib2.0-dev python3-pip pkg-config opam z3 zlib1g-dev verilator automake autotools-dev libmpc-dev libmpfr-dev gperf libtool patchutils bc
# Other python libraries used through the book.
pip3 install matplotlib scipy scikit-learn adjustText lief
sudo pip3 install matplotlib scipy scikit-learn adjustText lief
# needed for Ubuntu 22.04, gcc cross compiler expects python not python2 or python3.
if ! command -v python &> /dev/null
then
echo "WARNING: python3 was installed as python3 rather than python. Creating symlink."
ln -sf /usr/bin/python3 /usr/bin/python
sudo ln -sf /usr/bin/python3 /usr/bin/python
fi
# gcc cross-compiler (https://github.com/riscv-collab/riscv-gnu-toolchain)
@ -68,10 +68,12 @@ fi
cd $RISCV
git clone https://github.com/riscv/riscv-gnu-toolchain
cd riscv-gnu-toolchain
git checkout 2023.01.31
./configure --prefix=${RISCV} --with-multilib-generator="rv32e-ilp32e--;rv32i-ilp32--;rv32im-ilp32--;rv32iac-ilp32--;rv32imac-ilp32--;rv32imafc-ilp32f--;rv32imafdc-ilp32d--;rv64i-lp64--;rv64ic-lp64--;rv64iac-lp64--;rv64imac-lp64--;rv64imafdc-lp64d--;rv64im-lp64--;"
#git checkout 2023.01.31 #for 12.2.0; 2023.04.29 for 13.1
# Temporarily use the following commands until gcc-13 is part of riscv-gnu-toolchain (issue #1249)
git clone https://github.com/gcc-mirror/gcc -b releases/gcc-13 gcc-13
./configure --prefix=/opt/riscv --with-multilib-generator="rv32e-ilp32e--;rv32i-ilp32--;rv32im-ilp32--;rv32iac-ilp32--;rv32imac-ilp32--;rv32imafc-ilp32f--;rv32imafdc-ilp32d--;rv64i-lp64--;rv64ic-lp64--;rv64iac-lp64--;rv64imac-lp64--;rv64imafdc-lp64d--;rv64im-lp64--;" --with-gcc-src=`pwd`/gcc-13
#./configure --prefix=${RISCV} --with-multilib-generator="rv32e-ilp32e--;rv32i-ilp32--;rv32im-ilp32--;rv32iac-ilp32--;rv32imac-ilp32--;rv32imafc-ilp32f--;rv32imafdc-ilp32d--;rv64i-lp64--;rv64ic-lp64--;rv64iac-lp64--;rv64imac-lp64--;rv64imafdc-lp64d--;rv64im-lp64--;"
make -j ${NUM_THREADS}
make install
# elf2hex (https://github.com/sifive/elf2hex)
#The elf2hex utility to converts executable files into hexadecimal files for Verilog simulation.
@ -131,8 +133,9 @@ sed -i 's/--isa=rv64ic/--isa=rv64iac/' rv64i_m/privilege/Makefile.include
#pip3 install chardet==3.0.4
#pip3 install urllib3==1.22
cd $RISCV
opam init -y --disable-sandboxing
opam switch create ocaml-base-compiler.4.06.1
opam switch create ocaml-base-compiler.4.08.0
opam install sail -y
eval $(opam config env)
@ -140,13 +143,14 @@ git clone https://github.com/riscv/sail-riscv.git
cd sail-riscv
# Current bug in Sail - use hash that works for Wally
# (may remove later if Sail is ever fixed)
git checkout 4d05aa1698a0003a4f6f99e1380c743711c32052
#git checkout 4d05aa1698a0003a4f6f99e1380c743711c32052
make -j ${NUM_THREADS}
ARCH=RV32 make -j ${NUM_THREADS}
ARCH=RV64 make -j ${NUM_THREADS}
ln -sf $RISCV/sail-riscv/c_emulator/riscv_sim_RV64 /usr/bin/riscv_sim_RV64
ln -sf $RISCV/sail-riscv/c_emulator/riscv_sim_RV32 /usr/bin/riscv_sim_RV32
# next line seems redundant
#ARCH=RV64 make -j ${NUM_THREADS}
sudo ln -sf $RISCV/sail-riscv/c_emulator/riscv_sim_RV64 /usr/bin/riscv_sim_RV64
sudo ln -sf $RISCV/sail-riscv/c_emulator/riscv_sim_RV32 /usr/bin/riscv_sim_RV32
pip3 install testresources
pip3 install riscof --ignore-installed PyYAML
sudo pip3 install testresources
pip3 install git+https://github.com/riscv/riscof.git

13
sim/coverage-exclusions-rv64gc.do
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@ -201,6 +201,19 @@ coverage exclude -scope /dut/core/ifu/immu/immu/tlb/tlb/tlbcontrol -linerange $l
set line [GetLineNum ../src/mmu/tlb/tlbcontrol.sv "~CAMHit & TLBAccess"]
coverage exclude -scope /dut/core/ifu/immu/immu/tlb/tlb/tlbcontrol -linerange $line-$line -item e 1 -fecexprrow 3
# IMMU only makes word-sized accesses
set line [GetLineNum ../src/mmu/mmu.sv "exclusion-tag: immu-wordaccess"]
set line2 [expr $line + 6 ]
coverage exclude -scope /dut/core/ifu/immu/immu -linerange $line-$line2 -item e 1 -fecexprrow 4
coverage exclude -scope /dut/core/ifu/immu/immu -linerange $line-$line2 -item b 1
coverage exclude -scope /dut/core/ifu/immu/immu -linerange $line-$line2 -item s 1
# No irom
set line [GetLineNum ../src/ifu/ifu.sv "~ITLBMissF & ~CacheableF & ~SelIROM"]
coverage exclude -scope /dut/core/ifu -linerange $line-$line -item c 1 -feccondrow 6
set line [GetLineNum ../src/ifu/ifu.sv "~ITLBMissF & CacheableF & ~SelIROM"]
coverage exclude -scope /dut/core/ifu -linerange $line-$line -item c 1 -feccondrow 4
# Excluding reset and clear for impossible case in the wficountreg in privdec
set line [GetLineNum ../src/generic/flop/floprc.sv "reset \\| clear"]
coverage exclude -scope /dut/core/priv/priv/pmd/wfi/wficountreg -linerange $line-$line -item c 1 -feccondrow 2

4
src/fpu/fctrl.sv
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@ -138,9 +138,9 @@ module fctrl (
endcase
7'b11100??: if (Funct3D == 3'b001 & Rs2D == 5'b00000)
ControlsD = `FCTRLW'b0_1_10_00_000_0_0_0; // fclass
else if (Funct3D == 3'b000 & Rs2D == 5'b00000 & SupportedFmt)
else if (Funct3D == 3'b000 & Rs2D == 5'b00000)
ControlsD = `FCTRLW'b0_1_11_00_000_0_0_0; // fmv.x.w/d/h/q fp to int register
7'b111100?: if (Funct3D == 3'b000 & Rs2D == 5'b00000 & SupportedFmt)
7'b11110??: if (Funct3D == 3'b000 & Rs2D == 5'b00000)
ControlsD = `FCTRLW'b1_0_00_00_011_0_0_0; // fmv.w/d/h/q.x int to fp reg
7'b0100000: if (Rs2D[4:2] == 3'b000 & SupportedFmt2 & Rs2D[1:0] != 2'b00)
ControlsD = `FCTRLW'b1_0_01_00_000_0_0_0; // fcvt.s.(d/q/h)

2
src/mmu/mmu.sv
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@ -128,7 +128,7 @@ module mmu #(parameter TLB_ENTRIES = 8, IMMU = 0) (
assign StoreAmoAccessFaultM = (PMAStoreAmoAccessFaultM | PMPStoreAmoAccessFaultM) & ~TLBMiss;
// Misaligned faults
always_comb
always_comb // exclusion-tag: immu-wordaccess
case(Size[1:0])
2'b00: DataMisalignedM = 0; // lb, sb, lbu
2'b01: DataMisalignedM = VAdr[0]; // lh, sh, lhu

55
tests/coverage/tlbGLB.S
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@ -3,8 +3,9 @@
//
// Written: mmendozamanriquez@hmc.edu 4 April 2023
// nlimpert@hmc.edu
// Modified: kevin.j.thomas@okstate.edu May/4/20203
//
// Purpose: coverage for the global check.
// Purpose: Coverage for the Page Table Entry Global flag check.
//
// A component of the CORE-V-WALLY configurable RISC-V project.
//
@ -35,43 +36,47 @@ main:
li t5, 0x9000000000080080 // try making asid = 0.
csrw satp, t5
# sfence.vma x0, x0
# switch to supervisor mode
li a0, 1
li a0, 1
ecall
li t0, 0xC0000000
li t5, 0 # j = 0, run nASID only once
li t3, 32 //Max amount of Loops = 32
li t4, 0x1000 //offset between addressses.
li t1, 0x00008067 //load in jalr x0 x1 0 instruction to be stored
setup:
li t0, 0xC0000000 //starting address
li t2, 0 # i = 0
li t5, 0 # j = 0 // now use as a counter for new asid loop
li t3, 32 # Max amount of Loops = 32
beq t5, zero, loop //jump to first loop
loop: bge t2, t3, nASID # exit loop if i >= loops
li t1, 0x00008067 #load in jalr
sw t1, 0(t0)
fence.I
jalr t0
li t4, 0x1000
add t0, t0, t4
addi t2, t2, 1
loop2: #jump to each of the addresses in different address space
bge t2, t3, done
jalr t0 //jump to instruction at the virtual address
add t0, t0, t4 //change address for next loop
addi t2, t2, 1 //keep track of number of loops ran
j loop2
loop: #store jalr across memory
bge t2, t3, nASID # exit loop if i >= loops
sw t1, 0(t0) //stores this jalr in the virtual address
fence.I //invalidate instruction cache
jalr t0 //jump to instruction at the virtual address
add t0, t0, t4 //change address for next loop
addi t2, t2, 1 //keep track of number of loops ran
j loop
nASID: bne t5, zero, finished
li a0, 3 // go
nASID: #swap to different address space -> jump to each address
li a0, 3 //swap to machine mode
ecall
li t5, 0x9000100000080080 // try making asid = 1
li t5, 0x9000100000080080 //swap to address space 1 from 0
csrw satp, t5
li a0, 1
li a0, 1 // change back to supervisor mode.
ecall
li t2, 0
li t0, 0xC0000000
li t5, 1 // make this not zero.
j loop
li t5, 1 //flag for finished after loops
j setup
finished:
j done
.data
.align 19