| # |
| # Copyright (c) 2024 IBM, Inc |
| # |
| # This work is licensed under the terms of the GNU GPL, version 2 or later. |
| # See the COPYING file in the top-level directory. |
| |
| #include "../migration-test.h" |
| |
| .section .text |
| |
| .macro print ch |
| li %r3,PPC_H_PUT_TERM_CHAR |
| li %r4,0 |
| li %r5,1 |
| li %r6,\ch |
| sldi %r6,%r6,56 |
| sc 1 |
| .endm |
| |
| .globl _start |
| _start: |
| . = 0x100 |
| /* |
| * Enter 64-bit mode. Not necessary because the test uses 32-bit |
| * addresses, but those constants could easily be changed and break |
| * in 32-bit mode. |
| */ |
| mfmsr %r9 |
| li %r10,-1 |
| rldimi %r9,%r10,63,0 |
| mtmsrd %r9 |
| |
| /* |
| * Set up test memory region. Non-volatiles are used because the |
| * hcall can clobber regs. |
| * r20 - start address |
| * r21 - number of pages |
| */ |
| lis %r20,PPC_TEST_MEM_START@h |
| ori %r20,%r20,PPC_TEST_MEM_START@l |
| lis %r9,PPC_TEST_MEM_END@h |
| ori %r9,%r9,PPC_TEST_MEM_END@l |
| subf %r21,%r20,%r9 |
| li %r10,TEST_MEM_PAGE_SIZE |
| divd %r21,%r21,%r10 |
| |
| print 'A' |
| |
| li %r3,0 |
| mr %r9,%r20 |
| mtctr %r21 |
| 1: stb %r3,0(%r9) |
| addi %r9,%r9,TEST_MEM_PAGE_SIZE |
| bdnz 1b |
| |
| loop: |
| mr %r9,%r20 |
| mtctr %r21 |
| 1: lbz %r3,0(%r9) |
| addi %r3,%r3,1 |
| stb %r3,0(%r9) |
| addi %r9,%r9,TEST_MEM_PAGE_SIZE |
| bdnz 1b |
| |
| print 'B' |
| b loop |
