mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 12:09:58 +00:00
825d6eba7c
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <1612763186-18161-33-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/*
|
|
* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <inttypes.h>
|
|
#include <pthread.h>
|
|
|
|
/* Using volatile because we are testing atomics */
|
|
static inline int atomic_inc32(volatile int *x)
|
|
{
|
|
int old, dummy;
|
|
__asm__ __volatile__(
|
|
"1: %0 = memw_locked(%2)\n\t"
|
|
" %1 = add(%0, #1)\n\t"
|
|
" memw_locked(%2, p0) = %1\n\t"
|
|
" if (!p0) jump 1b\n\t"
|
|
: "=&r"(old), "=&r"(dummy)
|
|
: "r"(x)
|
|
: "p0", "memory");
|
|
return old;
|
|
}
|
|
|
|
/* Using volatile because we are testing atomics */
|
|
static inline long long atomic_inc64(volatile long long *x)
|
|
{
|
|
long long old, dummy;
|
|
__asm__ __volatile__(
|
|
"1: %0 = memd_locked(%2)\n\t"
|
|
" %1 = #1\n\t"
|
|
" %1 = add(%0, %1)\n\t"
|
|
" memd_locked(%2, p0) = %1\n\t"
|
|
" if (!p0) jump 1b\n\t"
|
|
: "=&r"(old), "=&r"(dummy)
|
|
: "r"(x)
|
|
: "p0", "memory");
|
|
return old;
|
|
}
|
|
|
|
/* Using volatile because we are testing atomics */
|
|
static inline int atomic_dec32(volatile int *x)
|
|
{
|
|
int old, dummy;
|
|
__asm__ __volatile__(
|
|
"1: %0 = memw_locked(%2)\n\t"
|
|
" %1 = add(%0, #-1)\n\t"
|
|
" memw_locked(%2, p0) = %1\n\t"
|
|
" if (!p0) jump 1b\n\t"
|
|
: "=&r"(old), "=&r"(dummy)
|
|
: "r"(x)
|
|
: "p0", "memory");
|
|
return old;
|
|
}
|
|
|
|
/* Using volatile because we are testing atomics */
|
|
static inline long long atomic_dec64(volatile long long *x)
|
|
{
|
|
long long old, dummy;
|
|
__asm__ __volatile__(
|
|
"1: %0 = memd_locked(%2)\n\t"
|
|
" %1 = #-1\n\t"
|
|
" %1 = add(%0, %1)\n\t"
|
|
" memd_locked(%2, p0) = %1\n\t"
|
|
" if (!p0) jump 1b\n\t"
|
|
: "=&r"(old), "=&r"(dummy)
|
|
: "r"(x)
|
|
: "p0", "memory");
|
|
return old;
|
|
}
|
|
|
|
#define LOOP_CNT 1000
|
|
/* Using volatile because we are testing atomics */
|
|
volatile int tick32 = 1;
|
|
/* Using volatile because we are testing atomics */
|
|
volatile long long tick64 = 1;
|
|
int err;
|
|
|
|
void *thread1_func(void *arg)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < LOOP_CNT; i++) {
|
|
atomic_inc32(&tick32);
|
|
atomic_dec64(&tick64);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void *thread2_func(void *arg)
|
|
{
|
|
int i;
|
|
for (i = 0; i < LOOP_CNT; i++) {
|
|
atomic_dec32(&tick32);
|
|
atomic_inc64(&tick64);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void test_pthread(void)
|
|
{
|
|
pthread_t tid1, tid2;
|
|
|
|
pthread_create(&tid1, NULL, thread1_func, "hello1");
|
|
pthread_create(&tid2, NULL, thread2_func, "hello2");
|
|
pthread_join(tid1, NULL);
|
|
pthread_join(tid2, NULL);
|
|
|
|
if (tick32 != 1) {
|
|
printf("ERROR: tick32 %d != 1\n", tick32);
|
|
err++;
|
|
}
|
|
if (tick64 != 1) {
|
|
printf("ERROR: tick64 %lld != 1\n", tick64);
|
|
err++;
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
test_pthread();
|
|
puts(err ? "FAIL" : "PASS");
|
|
return err;
|
|
}
|