1 files changed, 48 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/math/mma.c b/tools/testing/selftests/powerpc/math/mma.c
new file mode 100644
index 000000000..3a71808c9
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/mma.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test basic matrix multiply assist (MMA) functionality if available.
+ *
+ * Copyright 2020, Alistair Popple, IBM Corp.
+ */
+#include <stdio.h>
+#include <stdint.h>
+
+#include "utils.h"
+
+extern void test_mma(uint16_t (*)[8], uint16_t (*)[8], uint32_t (*)[4*4]);
+
+static int mma(void)
+{
+	int i;
+	int rc = 0;
+	uint16_t x[] = {1, 0, 2, 0, 3, 0, 4, 0};
+	uint16_t y[] = {1, 0, 2, 0, 3, 0, 4, 0};
+	uint32_t z[4*4];
+	uint32_t exp[4*4] = {1, 2, 3, 4,
+			     2, 4, 6, 8,
+			     3, 6, 9, 12,
+			     4, 8, 12, 16};
+
+	SKIP_IF_MSG(!have_hwcap2(PPC_FEATURE2_ARCH_3_1), "Need ISAv3.1");
+	SKIP_IF_MSG(!have_hwcap2(PPC_FEATURE2_MMA), "Need MMA");
+
+	test_mma(&x, &y, &z);
+
+	for (i = 0; i < 16; i++) {
+		printf("MMA[%d] = %d ", i, z[i]);
+
+		if (z[i] == exp[i]) {
+			printf(" (Correct)\n");
+		} else {
+			printf(" (Incorrect)\n");
+			rc = 1;
+		}
+	}
+
+	return rc;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(mma, "mma");
+}