LXR linux/arch/s390/kernel/head64.S

   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#
  25# Setup stack
  26#
  27        larl    %r14,init_task
  28        stg     %r14,__LC_CURRENT
  29        larl    %r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD-__PT_SIZE
  30#ifdef CONFIG_KASAN
  31        brasl   %r14,kasan_early_init
  32#endif
  33        brasl   %r14,startup_init               # s390 specific early init
  34        brasl   %r14,start_kernel               # common init code
  35#
  36# We returned from start_kernel ?!? PANIK
  37#
  38        basr    %r13,0
  39        lpswe   .Ldw-.(%r13)            # load disabled wait psw
  40
  41        .align  16
  42.LPG1:
  43.Ldw:   .quad   0x0002000180000000,0x0000000000000000
  44