Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* S390 version
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* Copyright IBM Corp. 2002, 2006
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* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
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*/
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#ifndef _ASM_THREAD_INFO_H
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#define _ASM_THREAD_INFO_H
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#include <linux/bits.h>
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#include <vdso/page.h>
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/*
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* General size of kernel stacks
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*/
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#if defined(CONFIG_KASAN) || defined(CONFIG_KMSAN)
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#define THREAD_SIZE_ORDER 4
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#else
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#define THREAD_SIZE_ORDER 2
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#endif
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#define BOOT_STACK_SIZE (PAGE_SIZE << 2)
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#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
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#define STACK_INIT_OFFSET (THREAD_SIZE - STACK_FRAME_OVERHEAD - __PT_SIZE)
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#ifndef __ASSEMBLER__
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/*
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* low level task data that entry.S needs immediate access to
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* - this struct should fit entirely inside of one cache line
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* - this struct shares the supervisor stack pages
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* - if the contents of this structure are changed, the assembly constants must also be changed
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*/
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struct thread_info {
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unsigned long flags; /* low level flags */
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unsigned long syscall_work; /* SYSCALL_WORK_ flags */
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unsigned int cpu; /* current CPU */
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unsigned char sie; /* running in SIE context */
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};
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/*
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* macros/functions for gaining access to the thread information structure
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*/
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#define INIT_THREAD_INFO(tsk) \
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{ \
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.flags = 0, \
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}
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struct task_struct;
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void arch_setup_new_exec(void);
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#define arch_setup_new_exec arch_setup_new_exec
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#endif
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/*
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* thread information flags bit numbers
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*
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* Tell the generic TIF infrastructure which special bits s390 supports
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*/
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#define HAVE_TIF_NEED_RESCHED_LAZY
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#define HAVE_TIF_RESTORE_SIGMASK
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#include <asm-generic/thread_info_tif.h>
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/* Architecture specific bits */
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#define TIF_ASCE_PRIMARY 16 /* primary asce is kernel asce */
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#define TIF_GUARDED_STORAGE 17 /* load guarded storage control block */
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#define TIF_ISOLATE_BP_GUEST 18 /* Run KVM guests with isolated BP */
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#define TIF_PER_TRAP 19 /* Need to handle PER trap on exit to usermode */
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#define TIF_SINGLE_STEP 21 /* This task is single stepped */
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#define TIF_BLOCK_STEP 22 /* This task is block stepped */
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#define TIF_UPROBE_SINGLESTEP 23 /* This task is uprobe single stepped */
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#define _TIF_ASCE_PRIMARY BIT(TIF_ASCE_PRIMARY)
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#define _TIF_GUARDED_STORAGE BIT(TIF_GUARDED_STORAGE)
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#define _TIF_ISOLATE_BP_GUEST BIT(TIF_ISOLATE_BP_GUEST)
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#define _TIF_PER_TRAP BIT(TIF_PER_TRAP)
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#define _TIF_SINGLE_STEP BIT(TIF_SINGLE_STEP)
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#define _TIF_BLOCK_STEP BIT(TIF_BLOCK_STEP)
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#define _TIF_UPROBE_SINGLESTEP BIT(TIF_UPROBE_SINGLESTEP)
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#endif /* _ASM_THREAD_INFO_H */
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