From a0e71c26cbaae1cfcc11e0a55641bc1d6e8bd65b Mon Sep 17 00:00:00 2001 From: Noah Limpert Date: Thu, 20 Apr 2023 14:50:06 -0700 Subject: [PATCH] Add in a test that makes match 3 = 0 for all tlb lines --- testbench/tests.vh | 1 + tests/coverage/tlbM3.S | 155 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 156 insertions(+) create mode 100644 tests/coverage/tlbM3.S diff --git a/testbench/tests.vh b/testbench/tests.vh index b86756b4e..a450b057d 100644 --- a/testbench/tests.vh +++ b/testbench/tests.vh @@ -60,6 +60,7 @@ string tvpaths[] = '{ "pmpcfg2", "tlbKP", "tlbMP", + "tlbM3", "tlbASID", "tlbGLB", "ifuCamlineWrite" diff --git a/tests/coverage/tlbM3.S b/tests/coverage/tlbM3.S new file mode 100644 index 000000000..ececa1f34 --- /dev/null +++ b/tests/coverage/tlbM3.S @@ -0,0 +1,155 @@ +/////////////////////////////////////////// +// tlbKP.S +// +// Written: mmendozamanriquez@hmc.edu 4 April 2023 +// nlimpert@hmc.edu +// +// Purpose: Test coverage for LSU +// +// A component of the CORE-V-WALLY configurable RISC-V project. +// +// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University +// +// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1 +// +// Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file +// except in compliance with the License, or, at your option, the Apache License version 2.0. You +// may obtain a copy of the License at +// +// https://solderpad.org/licenses/SHL-2.1/ +// +// Unless required by applicable law or agreed to in writing, any work distributed under the +// License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, +// either express or implied. See the License for the specific language governing permissions +// and limitations under the License. +//////////////////////////////////////////////////////////////////////////////////////////////// + +// load code to initalize stack, handle interrupts, terminate + +#include "WALLY-init-lib.h" + +# run-elf.bash find this in project description +main: + # Page table root address at 0x80010000 + li t5, 0x9000000000080010 + csrw satp, t5 + + # sfence.vma x0, x0 + + # switch to supervisor mode + li a0, 1 + ecall + + li t0, 0x1000 + + li t2, 0 # i = 0 + li t3, 64 # Max amount of Loops = 32 + li t4, 0x1000 + +loop: bge t2, t3, interim # exit loop if i >= loops + lw t1, 0(t0) + # sfence.vma x0, x0 + add t0, t0, t4 + addi t2, t2, 1 + j loop + +interim: + li t0, 0xFFFFFFFF000 + li t2, 0 # i = 0 + + +loop2:bge t2, t3, finished # exit loop if i >= loops + lw t1, 0(t0) + add t0, t0, t4 + addi t2, t2, 1 + j loop2 + +finished: + j done + +.data + +.align 16 +# Page table situated at 0x80010000 +pagetable: + .8byte 0x200044C1 // old page table was 200040 which just pointed to itself! wrong + +.align 12 + .8byte 0x00000000200048C1 + .8byte 0x00000000200048C1 + .8byte 0x00000000200048C1 + + +.align 12 + .8byte 0x0000000020004CC1 + //.8byte 0x00000200800CF// ADD IN THE MEGAPAGE should 3 nibbles of zeros be removed? + +.align 12 + #80000000 + .8byte 0x200000CF + .8byte 0x200004CF + .8byte 0x200008CF + .8byte 0x20000CCF + + .8byte 0x200010CF + .8byte 0x200014CF + .8byte 0x200018CF + .8byte 0x20001CCF + + .8byte 0x200020CF + .8byte 0x200024CF + .8byte 0x200028CF + .8byte 0x20002CCF + + .8byte 0x200030CF + .8byte 0x200034CF + .8byte 0x200038CF + .8byte 0x20003CCF + + .8byte 0x200040CF + .8byte 0x200044CF + .8byte 0x200048CF + .8byte 0x20004CCF + + .8byte 0x200050CF + .8byte 0x200054CF + .8byte 0x200058CF + .8byte 0x20005CCF + + .8byte 0x200060CF + .8byte 0x200064CF + .8byte 0x200068CF + .8byte 0x20006CCF + + .8byte 0x200070CF + .8byte 0x200074CF + .8byte 0x200078CF + .8byte 0x20007CCF + + .8byte 0x200080CF + .8byte 0x200084CF + .8byte 0x200088CF + .8byte 0x20008CCF + + .8byte 0x200090CF + .8byte 0x200094CF + .8byte 0x200098CF + .8byte 0x20009CCF + + .8byte 0x2000A0CF + .8byte 0x2000A4CF + .8byte 0x2000A8CF + .8byte 0x2000ACCF + + .8byte 0x2000B0CF + .8byte 0x2000B4CF + .8byte 0x2000B8CF + .8byte 0x2000BCCF + + .8byte 0x2000C0CF + .8byte 0x2000C4CF + .8byte 0x2000C8CF + .8byte 0x2000CCCF + + .8byte 0x2000D0CF + .8byte 0x2000D4CF