xref: /linux/arch/s390/kernel/head64.S (revision 722ecdbce68a87de2d9296f91308f44ea900a039)
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 *
9 */
10
11#include <linux/init.h>
12#include <linux/linkage.h>
13#include <asm/asm-offsets.h>
14#include <asm/thread_info.h>
15#include <asm/page.h>
16#include <asm/ptrace.h>
17
18__HEAD
19ENTRY(startup_continue)
20	larl	%r1,tod_clock_base
21	mvc	0(16,%r1),__LC_BOOT_CLOCK
22#
23# Setup stack
24#
25	larl	%r14,init_task
26	stg	%r14,__LC_CURRENT
27	larl	%r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD-__PT_SIZE
28#ifdef CONFIG_KASAN
29	brasl	%r14,kasan_early_init
30#endif
31	brasl	%r14,startup_init		# s390 specific early init
32	brasl	%r14,start_kernel		# common init code
33#
34# We returned from start_kernel ?!? PANIK
35#
36	basr	%r13,0
37	lpswe	.Ldw-.(%r13)		# load disabled wait psw
38
39	.align	16
40.LPG1:
41.Ldw:	.quad	0x0002000180000000,0x0000000000000000
42