1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Copyright IBM Corp. 1999, 2010 4 * 5 * Author(s): Hartmut Penner <hp@de.ibm.com> 6 * Martin Schwidefsky <schwidefsky@de.ibm.com> 7 * Rob van der Heij <rvdhei@iae.nl> 8 * Heiko Carstens <heiko.carstens@de.ibm.com> 9 * 10 */ 11 12#include <linux/init.h> 13#include <linux/linkage.h> 14#include <asm/asm-offsets.h> 15#include <asm/thread_info.h> 16#include <asm/page.h> 17#include <asm/ptrace.h> 18 19__HEAD 20ENTRY(startup_continue) 21 larl %r1,tod_clock_base 22 mvc 0(16,%r1),__LC_BOOT_CLOCK 23 larl %r13,.LPG1 # get base 24 lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers 25# 26# Setup stack 27# 28 larl %r14,init_task 29 stg %r14,__LC_CURRENT 30 larl %r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD-__PT_SIZE 31#ifdef CONFIG_KASAN 32 brasl %r14,kasan_early_init 33#endif 34 brasl %r14,startup_init # s390 specific early init 35 brasl %r14,start_kernel # common init code 36# 37# We returned from start_kernel ?!? PANIK 38# 39 basr %r13,0 40 lpswe .Ldw-.(%r13) # load disabled wait psw 41 42 .align 16 43.LPG1: 44.Ldw: .quad 0x0002000180000000,0x0000000000000000 45.Lctl: .quad 0x04040000 # cr0: AFP registers & secondary space 46 .quad 0 # cr1: primary space segment table 47 .quad 0 # cr2: dispatchable unit control table 48 .quad 0 # cr3: instruction authorization 49 .quad 0xffff # cr4: instruction authorization 50 .quad 0 # cr5: primary-aste origin 51 .quad 0 # cr6: I/O interrupts 52 .quad 0 # cr7: secondary space segment table 53 .quad 0x0000000000008000 # cr8: access registers translation 54 .quad 0 # cr9: tracing off 55 .quad 0 # cr10: tracing off 56 .quad 0 # cr11: tracing off 57 .quad 0 # cr12: tracing off 58 .quad 0 # cr13: home space segment table 59 .quad 0xc0000000 # cr14: machine check handling off 60 .quad 0 # cr15: linkage stack operations 61