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// SPDX-License-Identifier: GPL-2.0-only
#include "../../kselftest.h"
#define MAX_VSIZE (8192 * 32)
void dump(char *ptr, int size)
{
int i = 0;
for (i = 0; i < size; i++) {
if (i != 0) {
if (i % 16 == 0)
printf("\n");
else if (i % 8 == 0)
printf(" ");
}
printf("%02x ", ptr[i]);
}
printf("\n");
}
int main(void)
{
int i;
unsigned long vl;
char *datap, *tmp;
datap = malloc(MAX_VSIZE);
if (!datap) {
ksft_test_result_fail("fail to allocate memory for size = %lu\n", MAX_VSIZE);
exit(-1);
}
tmp = datap;
asm volatile (
".option push\n\t"
".option arch, +v\n\t"
"vsetvli %0, x0, e8, m8, ta, ma\n\t"
"vse8.v v0, (%2)\n\t"
"add %1, %2, %0\n\t"
"vse8.v v8, (%1)\n\t"
"add %1, %1, %0\n\t"
"vse8.v v16, (%1)\n\t"
"add %1, %1, %0\n\t"
"vse8.v v24, (%1)\n\t"
".option pop\n\t"
: "=&r" (vl), "=r" (tmp) : "r" (datap) : "memory");
ksft_print_msg("vl = %lu\n", vl);
if (datap[0] != 0x00 && datap[0] != 0xff) {
ksft_test_result_fail("v-regesters are not properly initialized\n");
dump(datap, vl * 4);
exit(-1);
}
for (i = 1; i < vl * 4; i++) {
if (datap[i] != datap[0]) {
ksft_test_result_fail("detect stale values on v-regesters\n");
dump(datap, vl * 4);
exit(-2);
}
}
free(datap);
ksft_exit_pass();
return 0;
}
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