1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * Copyright IBM Corp. 1999, 2010 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Author(s): Hartmut Penner <hp@de.ibm.com> 6*4882a593Smuzhiyun * Martin Schwidefsky <schwidefsky@de.ibm.com> 7*4882a593Smuzhiyun * Rob van der Heij <rvdhei@iae.nl> 8*4882a593Smuzhiyun * Heiko Carstens <heiko.carstens@de.ibm.com> 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun#include <linux/init.h> 13*4882a593Smuzhiyun#include <linux/linkage.h> 14*4882a593Smuzhiyun#include <asm/asm-offsets.h> 15*4882a593Smuzhiyun#include <asm/thread_info.h> 16*4882a593Smuzhiyun#include <asm/page.h> 17*4882a593Smuzhiyun#include <asm/ptrace.h> 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun__HEAD 20*4882a593SmuzhiyunENTRY(startup_continue) 21*4882a593Smuzhiyun tm __LC_STFLE_FAC_LIST+5,0x80 # LPP available ? 22*4882a593Smuzhiyun jz 0f 23*4882a593Smuzhiyun xc __LC_LPP+1(7,0),__LC_LPP+1 # clear lpp and current_pid 24*4882a593Smuzhiyun mvi __LC_LPP,0x80 # and set LPP_MAGIC 25*4882a593Smuzhiyun .insn s,0xb2800000,__LC_LPP # load program parameter 26*4882a593Smuzhiyun0: larl %r1,tod_clock_base 27*4882a593Smuzhiyun mvc 0(16,%r1),__LC_BOOT_CLOCK 28*4882a593Smuzhiyun larl %r13,.LPG1 # get base 29*4882a593Smuzhiyun# 30*4882a593Smuzhiyun# Setup stack 31*4882a593Smuzhiyun# 32*4882a593Smuzhiyun larl %r14,init_task 33*4882a593Smuzhiyun stg %r14,__LC_CURRENT 34*4882a593Smuzhiyun larl %r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD-__PT_SIZE 35*4882a593Smuzhiyun#ifdef CONFIG_KASAN 36*4882a593Smuzhiyun brasl %r14,kasan_early_init 37*4882a593Smuzhiyun#endif 38*4882a593Smuzhiyun brasl %r14,startup_init # s390 specific early init 39*4882a593Smuzhiyun brasl %r14,start_kernel # common init code 40*4882a593Smuzhiyun# 41*4882a593Smuzhiyun# We returned from start_kernel ?!? PANIK 42*4882a593Smuzhiyun# 43*4882a593Smuzhiyun basr %r13,0 44*4882a593Smuzhiyun lpswe .Ldw-.(%r13) # load disabled wait psw 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun .align 16 47*4882a593Smuzhiyun.LPG1: 48*4882a593Smuzhiyun.Ldw: .quad 0x0002000180000000,0x0000000000000000 49