diff options
Diffstat (limited to 'arch/s390/kernel/head.S')
| -rw-r--r-- | arch/s390/kernel/head.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S new file mode 100644 index 000000000000..7edb9ded199c --- /dev/null +++ b/arch/s390/kernel/head.S @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright IBM Corp. 1999, 2010 + * + * Author(s): Hartmut Penner <hp@de.ibm.com> + * Martin Schwidefsky <schwidefsky@de.ibm.com> + * Rob van der Heij <rvdhei@iae.nl> + * + */ + +#include <linux/init.h> +#include <linux/linkage.h> +#include <asm/lowcore.h> +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> +#include <asm/page.h> +#include <asm/ptrace.h> + +__HEAD +SYM_CODE_START(startup_continue) +# +# Setup stack +# + GET_LC %r2 + larl %r14,init_task + stg %r14,__LC_CURRENT(%r2) + larl %r15,init_thread_union+STACK_INIT_OFFSET + stg %r15,__LC_KERNEL_STACK(%r2) + brasl %r14,sclp_early_adjust_va # allow sclp_early_printk + brasl %r14,startup_init # s390 specific early init + brasl %r14,start_kernel # common init code +# +# We returned from start_kernel ?!? PANIK +# + basr %r13,0 + lpswe dw_psw-.(%r13) # load disabled wait psw +SYM_CODE_END(startup_continue) + + .balign 16 +SYM_DATA_LOCAL(dw_psw, .quad 0x0002000180000000,0x0000000000000000) |