From 98420e45acf188654311d3f4fe9ad97217742ac8 Mon Sep 17 00:00:00 2001
From: Noah Limpert <nlimpert@g.hmc.edu>
Date: Thu, 13 Apr 2023 15:13:55 -0700
Subject: [PATCH] update tests.vh, add tlbKP to load all lines of tlb

---
 tests/coverage/tlbKP.S | 143 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 tests/coverage/tlbKP.S

diff --git a/tests/coverage/tlbKP.S b/tests/coverage/tlbKP.S
new file mode 100644
index 00000000..5aaf5c19
--- /dev/null
+++ b/tests/coverage/tlbKP.S
@@ -0,0 +1,143 @@
+///////////////////////////////////////////
+// lsu_test.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, 0x80015000
+
+    li t2, 0             # i = 0
+    li t3, 33     # Max amount of Loops = 32
+
+loop: bge t2, t3, finished   # exit loop if i >= loops
+    lw t1, 0(t0)
+    li t4, 0x1000
+    add t0, t0, t4
+    addi t2, t2, 1
+    j loop
+
+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 0x0000000000000000
+    .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 0x200100CF
+    .8byte 0x200104CF
+    .8byte 0x200108CF
+    .8byte 0x20010CCF
+
+    .8byte 0x200110CF
+    .8byte 0x200114CF
+    .8byte 0x200118CF
+    .8byte 0x20011CCF
+
+    .8byte 0x200120CF
+    .8byte 0x200124CF
+    .8byte 0x200128CF
+    .8byte 0x20012CCF
+
+    .8byte 0x200130CF
+    .8byte 0x200134CF