1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2006, 2007
4 * Author(s): Michael Holzheu <holzheu@de.ibm.com>
5 */
6
7#include <linux/linkage.h>
8#include <asm/asm-offsets.h>
9
10SYM_CODE_START(early_pgm_check_handler)
11 stmg %r8,%r15,__LC_SAVE_AREA_SYNC
12 aghi %r15,-(STACK_FRAME_OVERHEAD+__PT_SIZE)
13 la %r11,STACK_FRAME_OVERHEAD(%r15)
14 xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
15 stmg %r0,%r7,__PT_R0(%r11)
16 mvc __PT_PSW(16,%r11),__LC_PGM_OLD_PSW
17 mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC
18 lgr %r2,%r11
19 brasl %r14,__do_early_pgm_check
20 mvc __LC_RETURN_PSW(16),STACK_FRAME_OVERHEAD+__PT_PSW(%r15)
21 lmg %r0,%r15,STACK_FRAME_OVERHEAD+__PT_R0(%r15)
22 lpswe __LC_RETURN_PSW
23SYM_CODE_END(early_pgm_check_handler)
24

source code of linux/arch/s390/kernel/earlypgm.S