1dcb58231SJanosch Frank/* SPDX-License-Identifier: GPL-2.0-only */ 2dcb58231SJanosch Frank/* 3dcb58231SJanosch Frank * Start assembly for snippets 4dcb58231SJanosch Frank * 5dcb58231SJanosch Frank * Copyright (c) 2021 IBM Corp. 6dcb58231SJanosch Frank * 7dcb58231SJanosch Frank * Authors: 8dcb58231SJanosch Frank * Janosch Frank <frankja@linux.ibm.com> 9dcb58231SJanosch Frank */ 10acc93cbfSJanosch Frank#include <asm/sigp.h> 11acc93cbfSJanosch Frank 12acc93cbfSJanosch Frank.section .init 13acc93cbfSJanosch Frank .globl start 14acc93cbfSJanosch Frankstart: 15acc93cbfSJanosch Frank /* XOR all registers with themselves to clear them fully. */ 16acc93cbfSJanosch Frank .irp i, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 17acc93cbfSJanosch Frank xgr \i,\i 18acc93cbfSJanosch Frank .endr 19acc93cbfSJanosch Frank /* 0x3000 is the stack page for now */ 20*a6c15401SJanosch Frank lghi %r15, stackptr 21acc93cbfSJanosch Frank sam64 22acc93cbfSJanosch Frank brasl %r14, main 23acc93cbfSJanosch Frank /* For now let's only use cpu 0 in snippets so this will always work. */ 24acc93cbfSJanosch Frank xgr %r0, %r0 25acc93cbfSJanosch Frank sigp %r2, %r0, SIGP_STOP 26