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41 lines
895 B
41 lines
895 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* arch/s390/kernel/base.S |
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* |
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* Copyright IBM Corp. 2006, 2007 |
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* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> |
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* Michael Holzheu <holzheu@de.ibm.com> |
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*/ |
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#include <linux/linkage.h> |
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#include <asm/asm-offsets.h> |
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#include <asm/nospec-insn.h> |
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#include <asm/ptrace.h> |
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GEN_BR_THUNK %r9 |
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GEN_BR_THUNK %r14 |
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ENTRY(s390_base_pgm_handler) |
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stmg %r0,%r15,__LC_SAVE_AREA_SYNC |
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basr %r13,0 |
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0: aghi %r15,-STACK_FRAME_OVERHEAD |
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larl %r1,s390_base_pgm_handler_fn |
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lg %r9,0(%r1) |
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ltgr %r9,%r9 |
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jz 1f |
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BASR_EX %r14,%r9 |
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lmg %r0,%r15,__LC_SAVE_AREA_SYNC |
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lpswe __LC_PGM_OLD_PSW |
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1: lpswe disabled_wait_psw-0b(%r13) |
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ENDPROC(s390_base_pgm_handler) |
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.align 8 |
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disabled_wait_psw: |
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.quad 0x0002000180000000,0x0000000000000000 + s390_base_pgm_handler |
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.section .bss |
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.align 8 |
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.globl s390_base_pgm_handler_fn |
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s390_base_pgm_handler_fn: |
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.quad 0 |
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.previous
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