^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright IBM Corp. 1999, 2010
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author(s): Hartmut Penner <hp@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Martin Schwidefsky <schwidefsky@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Rob van der Heij <rvdhei@iae.nl>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Heiko Carstens <heiko.carstens@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/asm-offsets.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/thread_info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) __HEAD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) ENTRY(startup_continue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) tm __LC_STFLE_FAC_LIST+5,0x80 # LPP available ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) jz 0f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) xc __LC_LPP+1(7,0),__LC_LPP+1 # clear lpp and current_pid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) mvi __LC_LPP,0x80 # and set LPP_MAGIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .insn s,0xb2800000,__LC_LPP # load program parameter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 0: larl %r1,tod_clock_base
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) mvc 0(16,%r1),__LC_BOOT_CLOCK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) larl %r13,.LPG1 # get base
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) # Setup stack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) larl %r14,init_task
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) stg %r14,__LC_CURRENT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) larl %r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD-__PT_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #ifdef CONFIG_KASAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) brasl %r14,kasan_early_init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) brasl %r14,startup_init # s390 specific early init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) brasl %r14,start_kernel # common init code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) # We returned from start_kernel ?!? PANIK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) basr %r13,0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) lpswe .Ldw-.(%r13) # load disabled wait psw
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) .align 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) .LPG1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .Ldw: .quad 0x0002000180000000,0x0000000000000000