| /* 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 |
