0d57cd61d9
Move test infra to header file
check functions (always print line number on error)
USR manipulation
Useful floating point values
Use stdint.h types
Use stdbool.h bool where appropriate
Use trip counts local to for loop
Suggested-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Tested-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230522174341.1805460-1-tsimpson@quicinc.com>
129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/*
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* Copyright(c) 2019-2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <pthread.h>
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int err;
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#include "hex_test.h"
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static inline int32_t atomic_inc32(int32_t *x)
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{
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int32_t old, dummy;
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__asm__ __volatile__(
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"1: %0 = memw_locked(%2)\n\t"
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" %1 = add(%0, #1)\n\t"
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" memw_locked(%2, p0) = %1\n\t"
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" if (!p0) jump 1b\n\t"
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: "=&r"(old), "=&r"(dummy)
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: "r"(x)
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: "p0", "memory");
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return old;
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}
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static inline int64_t atomic_inc64(int64_t *x)
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{
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int64_t old, dummy;
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__asm__ __volatile__(
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"1: %0 = memd_locked(%2)\n\t"
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" %1 = #1\n\t"
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" %1 = add(%0, %1)\n\t"
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" memd_locked(%2, p0) = %1\n\t"
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" if (!p0) jump 1b\n\t"
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: "=&r"(old), "=&r"(dummy)
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: "r"(x)
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: "p0", "memory");
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return old;
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}
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static inline int32_t atomic_dec32(int32_t *x)
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{
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int32_t old, dummy;
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__asm__ __volatile__(
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"1: %0 = memw_locked(%2)\n\t"
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" %1 = add(%0, #-1)\n\t"
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" memw_locked(%2, p0) = %1\n\t"
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" if (!p0) jump 1b\n\t"
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: "=&r"(old), "=&r"(dummy)
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: "r"(x)
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: "p0", "memory");
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return old;
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}
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static inline int64_t atomic_dec64(int64_t *x)
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{
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int64_t old, dummy;
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__asm__ __volatile__(
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"1: %0 = memd_locked(%2)\n\t"
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" %1 = #-1\n\t"
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" %1 = add(%0, %1)\n\t"
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" memd_locked(%2, p0) = %1\n\t"
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" if (!p0) jump 1b\n\t"
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: "=&r"(old), "=&r"(dummy)
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: "r"(x)
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: "p0", "memory");
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return old;
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}
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#define LOOP_CNT 1000
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volatile int32_t tick32 = 1; /* Using volatile because we are testing atomics */
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volatile int64_t tick64 = 1; /* Using volatile because we are testing atomics */
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void *thread1_func(void *arg)
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{
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for (int i = 0; i < LOOP_CNT; i++) {
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atomic_inc32(&tick32);
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atomic_dec64(&tick64);
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}
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return NULL;
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}
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void *thread2_func(void *arg)
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{
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for (int i = 0; i < LOOP_CNT; i++) {
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atomic_dec32(&tick32);
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atomic_inc64(&tick64);
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}
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return NULL;
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}
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void test_pthread(void)
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{
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pthread_t tid1, tid2;
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pthread_create(&tid1, NULL, thread1_func, "hello1");
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pthread_create(&tid2, NULL, thread2_func, "hello2");
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pthread_join(tid1, NULL);
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pthread_join(tid2, NULL);
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check32(tick32, 1);
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check64(tick64, 1);
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}
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int main(int argc, char **argv)
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{
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test_pthread();
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puts(err ? "FAIL" : "PASS");
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return err;
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}
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