From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/s390/kernel/base.S | 63 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 arch/s390/kernel/base.S (limited to 'arch/s390/kernel/base.S') diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S new file mode 100644 index 000000000..b79e0fd57 --- /dev/null +++ b/arch/s390/kernel/base.S @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * arch/s390/kernel/base.S + * + * Copyright IBM Corp. 2006, 2007 + * Author(s): Heiko Carstens + * Michael Holzheu + */ + +#include +#include +#include +#include +#include + + GEN_BR_THUNK %r9 + GEN_BR_THUNK %r14 + +ENTRY(s390_base_ext_handler) + stmg %r0,%r15,__LC_SAVE_AREA_ASYNC + basr %r13,0 +0: aghi %r15,-STACK_FRAME_OVERHEAD + larl %r1,s390_base_ext_handler_fn + lg %r9,0(%r1) + ltgr %r9,%r9 + jz 1f + BASR_EX %r14,%r9 +1: lmg %r0,%r15,__LC_SAVE_AREA_ASYNC + ni __LC_EXT_OLD_PSW+1,0xfd # clear wait state bit + lpswe __LC_EXT_OLD_PSW +ENDPROC(s390_base_ext_handler) + + .section .bss + .align 8 + .globl s390_base_ext_handler_fn +s390_base_ext_handler_fn: + .quad 0 + .previous + +ENTRY(s390_base_pgm_handler) + stmg %r0,%r15,__LC_SAVE_AREA_SYNC + basr %r13,0 +0: aghi %r15,-STACK_FRAME_OVERHEAD + larl %r1,s390_base_pgm_handler_fn + lg %r9,0(%r1) + ltgr %r9,%r9 + jz 1f + BASR_EX %r14,%r9 + lmg %r0,%r15,__LC_SAVE_AREA_SYNC + lpswe __LC_PGM_OLD_PSW +1: lpswe disabled_wait_psw-0b(%r13) +ENDPROC(s390_base_pgm_handler) + + .align 8 +disabled_wait_psw: + .quad 0x0002000180000000,0x0000000000000000 + s390_base_pgm_handler + + .section .bss + .align 8 + .globl s390_base_pgm_handler_fn +s390_base_pgm_handler_fn: + .quad 0 + .previous -- cgit v1.2.3