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+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Test basic matrix multiply assist (MMA) functionality if available.
+ *
+ * Copyright 2020, Alistair Popple, IBM Corp.
+ */
+ .global test_mma
+test_mma:
+ /* Load accumulator via VSX registers from image passed in r3 */
+ lxvh8x 4,0,3
+ lxvh8x 5,0,4
+
+ /* Clear and prime the accumulator (xxsetaccz) */
+ .long 0x7c030162
+
+ /* Prime the accumulator with MMA VSX move to accumulator
+ * X-form (xxmtacc) (not needed due to above zeroing) */
+ //.long 0x7c010162
+
+ /* xvi16ger2s */
+ .long 0xec042958
+
+ /* Deprime the accumulator - xxmfacc 0 */
+ .long 0x7c000162
+
+ /* Store result in image passed in r5 */
+ stxvw4x 0,0,5
+ addi 5,5,16
+ stxvw4x 1,0,5
+ addi 5,5,16
+ stxvw4x 2,0,5
+ addi 5,5,16
+ stxvw4x 3,0,5
+ addi 5,5,16
+
+ blr