1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Test basic matrix multiply assist (MMA) functionality if available.
 4 *
 5 * Copyright 2020, Alistair Popple, IBM Corp.
 6 */
 7#include <stdio.h>
 8#include <stdint.h>
 9
10#include "utils.h"
11
12extern void test_mma(uint16_t (*)[8], uint16_t (*)[8], uint32_t (*)[4*4]);
13
14static int mma(void)
15{
16	int i;
17	int rc = 0;
18	uint16_t x[] = {1, 0, 2, 0, 3, 0, 4, 0};
19	uint16_t y[] = {1, 0, 2, 0, 3, 0, 4, 0};
20	uint32_t z[4*4];
21	uint32_t exp[4*4] = {1, 2, 3, 4,
22			     2, 4, 6, 8,
23			     3, 6, 9, 12,
24			     4, 8, 12, 16};
25
26	SKIP_IF_MSG(!have_hwcap2(PPC_FEATURE2_ARCH_3_1), "Need ISAv3.1");
27	SKIP_IF_MSG(!have_hwcap2(PPC_FEATURE2_MMA), "Need MMA");
28
29	test_mma(&x, &y, &z);
30
31	for (i = 0; i < 16; i++) {
32		printf("MMA[%d] = %d ", i, z[i]);
33
34		if (z[i] == exp[i]) {
35			printf(" (Correct)\n");
36		} else {
37			printf(" (Incorrect)\n");
38			rc = 1;
39		}
40	}
41
42	return rc;
43}
44
45int main(int argc, char *argv[])
46{
47	return test_harness(mma, "mma");
48}