112771Sqtt2@cornell.edu/* 212771Sqtt2@cornell.edu * Copyright (c) 2018, Cornell University 312771Sqtt2@cornell.edu * All rights reserved. 412771Sqtt2@cornell.edu * 512771Sqtt2@cornell.edu * Redistribution and use in source and binary forms, with or 612771Sqtt2@cornell.edu * without modification, are permitted provided that the following 712771Sqtt2@cornell.edu * conditions are met: 812771Sqtt2@cornell.edu * 912771Sqtt2@cornell.edu * Redistributions of source code must retain the above copyright 1012771Sqtt2@cornell.edu * notice, this list of conditions and the following disclaimer. 1112771Sqtt2@cornell.edu * 1212771Sqtt2@cornell.edu * Redistributions in binary form must reproduce the above 1312771Sqtt2@cornell.edu * copyright notice, this list of conditions and the following 1412771Sqtt2@cornell.edu * disclaimer in the documentation and/or other materials provided 1512771Sqtt2@cornell.edu * with the distribution. 1612771Sqtt2@cornell.edu * 1712771Sqtt2@cornell.edu * Neither the name of Cornell University nor the names of its 1812771Sqtt2@cornell.edu * contributors may be used to endorse or promote products derived 1912771Sqtt2@cornell.edu * from this software without specific prior written permission. 2012771Sqtt2@cornell.edu * 2112771Sqtt2@cornell.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 2212771Sqtt2@cornell.edu * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 2312771Sqtt2@cornell.edu * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 2412771Sqtt2@cornell.edu * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2512771Sqtt2@cornell.edu * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 2612771Sqtt2@cornell.edu * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2712771Sqtt2@cornell.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2812771Sqtt2@cornell.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 2912771Sqtt2@cornell.edu * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 3012771Sqtt2@cornell.edu * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3112771Sqtt2@cornell.edu * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 3212771Sqtt2@cornell.edu * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3312771Sqtt2@cornell.edu * POSSIBILITY OF SUCH DAMAGE. 3412771Sqtt2@cornell.edu * 3512771Sqtt2@cornell.edu * Authors: Tuan Ta 3612771Sqtt2@cornell.edu */ 3712771Sqtt2@cornell.edu 3812771Sqtt2@cornell.edu//------------------------------------------------------------------------ 3912771Sqtt2@cornell.edu// This code tests amomax_d instruction in multi-threading system. 4012771Sqtt2@cornell.edu// All threads execute an amomax_w instruction. 4112771Sqtt2@cornell.edu// Master thread (i.e., thread 0) waits for all threads to complete by 4212771Sqtt2@cornell.edu// spinning on the barrier variable until all threads update the variable. 4312771Sqtt2@cornell.edu// Then, the master thread checks the shared variable's value. 4412771Sqtt2@cornell.edu//------------------------------------------------------------------------ 4512771Sqtt2@cornell.edu 4612771Sqtt2@cornell.edu#include "riscv_test.h" 4712771Sqtt2@cornell.edu#include "test_macros.h" 4812771Sqtt2@cornell.edu#include "test_macros_mt.h" 4912771Sqtt2@cornell.edu 5012771Sqtt2@cornell.edu RVTEST_RV64U 5112771Sqtt2@cornell.edu RVTEST_CODE_BEGIN 5212771Sqtt2@cornell.edu 5312771Sqtt2@cornell.edu#define RESULT 0xdeadbeefdeadbeef 5412771Sqtt2@cornell.edu 5512771Sqtt2@cornell.edu//------------------------------------------------------------------------ 5612771Sqtt2@cornell.edu// Reinitialize shared_var to 0x0000000000000000 5712771Sqtt2@cornell.edu//------------------------------------------------------------------------ 5812771Sqtt2@cornell.edu la a0, shared_var 5912771Sqtt2@cornell.edu li t0, 0x0000000000000000 6012771Sqtt2@cornell.edu sd t0, (a0) 6112771Sqtt2@cornell.edu 6212771Sqtt2@cornell.edu//------------------------------------------------------------------------ 6312771Sqtt2@cornell.edu// Master thread creates new threads, waits for all threads to complete, 6412771Sqtt2@cornell.edu// deallocates threads and checks result 6512771Sqtt2@cornell.edu//------------------------------------------------------------------------ 6612771Sqtt2@cornell.edu call _create_threads 6712771Sqtt2@cornell.edu call _join 6812771Sqtt2@cornell.edu call _delete_threads 6912771Sqtt2@cornell.edu call _check 7012771Sqtt2@cornell.edu 7112771Sqtt2@cornell.edu RVTEST_CODE_END 7212771Sqtt2@cornell.edu 7312771Sqtt2@cornell.edu//------------------------------------------------------------------------ 7412771Sqtt2@cornell.edu// mt_test function executed in child threads 7512771Sqtt2@cornell.edu// A child thread signals its completion by atomicaly adding 1 to barrier 7612771Sqtt2@cornell.edu//------------------------------------------------------------------------ 7712771Sqtt2@cornell.edu_mt_test: 7812771Sqtt2@cornell.edu la a0, shared_var 7912771Sqtt2@cornell.edu la t0, array_index 8012771Sqtt2@cornell.edu li t1, 8 8112771Sqtt2@cornell.edu amoadd.d t1, t1, (t0) // get my array_index 8212771Sqtt2@cornell.edu 8312771Sqtt2@cornell.edu la t0, array 8412771Sqtt2@cornell.edu add t0, t0, t1 8512771Sqtt2@cornell.edu ld t0, (t0) // get array[array_index] 8612771Sqtt2@cornell.edu 8712771Sqtt2@cornell.edu amomaxu.d zero, t0, (a0) 8812771Sqtt2@cornell.edu 8912771Sqtt2@cornell.edu li t0, 1 9012771Sqtt2@cornell.edu la a0, barrier 9112771Sqtt2@cornell.edu amoadd.d zero, t0, (a0) 9212771Sqtt2@cornell.edu 9312771Sqtt2@cornell.edu RVTEST_CODE_END 9412771Sqtt2@cornell.edu 9512771Sqtt2@cornell.edu//------------------------------------------------------------------------ 9612771Sqtt2@cornell.edu// Master thread checks result 9712771Sqtt2@cornell.edu//------------------------------------------------------------------------ 9812771Sqtt2@cornell.edu_check: 9912771Sqtt2@cornell.edu la a0, shared_var 10012771Sqtt2@cornell.edu li a1, RESULT 10112771Sqtt2@cornell.edu ld a0, (a0) 10212771Sqtt2@cornell.edu bne a0, a1, _fail 10312771Sqtt2@cornell.edu li a0, SUCCESS 10412771Sqtt2@cornell.edu ret 10512771Sqtt2@cornell.edu 10612771Sqtt2@cornell.edu_fail: 10712771Sqtt2@cornell.edu li a0, FAILURE 10812771Sqtt2@cornell.edu ret 10912771Sqtt2@cornell.edu 11012771Sqtt2@cornell.edu .data 11112771Sqtt2@cornell.edu 11212771Sqtt2@cornell.eduMT_DATA 11312771Sqtt2@cornell.eduarray_index: .dword 0; 114