| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * S390 version |
| * Copyright IBM Corp. 2002, 2006 |
| * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) |
| */ |
| |
| #ifndef _ASM_THREAD_INFO_H |
| #define _ASM_THREAD_INFO_H |
| |
| #include <linux/bits.h> |
| #ifndef ASM_OFFSETS_C |
| #include <asm/asm-offsets.h> |
| #endif |
| |
| /* |
| * General size of kernel stacks |
| */ |
| #ifdef CONFIG_KASAN |
| #define THREAD_SIZE_ORDER 4 |
| #else |
| #define THREAD_SIZE_ORDER 2 |
| #endif |
| #define BOOT_STACK_SIZE (PAGE_SIZE << 2) |
| #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) |
| |
| #define STACK_INIT_OFFSET (THREAD_SIZE - STACK_FRAME_OVERHEAD - __PT_SIZE) |
| |
| #ifndef __ASSEMBLY__ |
| #include <asm/lowcore.h> |
| #include <asm/page.h> |
| |
| /* |
| * low level task data that entry.S needs immediate access to |
| * - this struct should fit entirely inside of one cache line |
| * - this struct shares the supervisor stack pages |
| * - if the contents of this structure are changed, the assembly constants must also be changed |
| */ |
| struct thread_info { |
| unsigned long flags; /* low level flags */ |
| unsigned long syscall_work; /* SYSCALL_WORK_ flags */ |
| unsigned int cpu; /* current CPU */ |
| }; |
| |
| /* |
| * macros/functions for gaining access to the thread information structure |
| */ |
| #define INIT_THREAD_INFO(tsk) \ |
| { \ |
| .flags = 0, \ |
| } |
| |
| struct task_struct; |
| |
| void arch_setup_new_exec(void); |
| #define arch_setup_new_exec arch_setup_new_exec |
| |
| #endif |
| |
| /* |
| * thread information flags bit numbers |
| */ |
| /* _TIF_WORK bits */ |
| #define TIF_NOTIFY_RESUME 0 /* callback before returning to user */ |
| #define TIF_SIGPENDING 1 /* signal pending */ |
| #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ |
| #define TIF_UPROBE 3 /* breakpointed or single-stepping */ |
| #define TIF_GUARDED_STORAGE 4 /* load guarded storage control block */ |
| #define TIF_PATCH_PENDING 5 /* pending live patching update */ |
| #define TIF_PGSTE 6 /* New mm's will use 4K page tables */ |
| #define TIF_NOTIFY_SIGNAL 7 /* signal notifications exist */ |
| #define TIF_ISOLATE_BP_GUEST 9 /* Run KVM guests with isolated BP */ |
| #define TIF_PER_TRAP 10 /* Need to handle PER trap on exit to usermode */ |
| |
| #define TIF_31BIT 16 /* 32bit process */ |
| #define TIF_MEMDIE 17 /* is terminating due to OOM killer */ |
| #define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal() */ |
| #define TIF_SINGLE_STEP 19 /* This task is single stepped */ |
| #define TIF_BLOCK_STEP 20 /* This task is block stepped */ |
| #define TIF_UPROBE_SINGLESTEP 21 /* This task is uprobe single stepped */ |
| |
| /* _TIF_TRACE bits */ |
| #define TIF_SYSCALL_TRACE 24 /* syscall trace active */ |
| #define TIF_SYSCALL_AUDIT 25 /* syscall auditing active */ |
| #define TIF_SECCOMP 26 /* secure computing */ |
| #define TIF_SYSCALL_TRACEPOINT 27 /* syscall tracepoint instrumentation */ |
| |
| #define _TIF_NOTIFY_RESUME BIT(TIF_NOTIFY_RESUME) |
| #define _TIF_NOTIFY_SIGNAL BIT(TIF_NOTIFY_SIGNAL) |
| #define _TIF_SIGPENDING BIT(TIF_SIGPENDING) |
| #define _TIF_NEED_RESCHED BIT(TIF_NEED_RESCHED) |
| #define _TIF_UPROBE BIT(TIF_UPROBE) |
| #define _TIF_GUARDED_STORAGE BIT(TIF_GUARDED_STORAGE) |
| #define _TIF_PATCH_PENDING BIT(TIF_PATCH_PENDING) |
| #define _TIF_ISOLATE_BP_GUEST BIT(TIF_ISOLATE_BP_GUEST) |
| #define _TIF_PER_TRAP BIT(TIF_PER_TRAP) |
| |
| #define _TIF_31BIT BIT(TIF_31BIT) |
| #define _TIF_SINGLE_STEP BIT(TIF_SINGLE_STEP) |
| |
| #define _TIF_SYSCALL_TRACE BIT(TIF_SYSCALL_TRACE) |
| #define _TIF_SYSCALL_AUDIT BIT(TIF_SYSCALL_AUDIT) |
| #define _TIF_SECCOMP BIT(TIF_SECCOMP) |
| #define _TIF_SYSCALL_TRACEPOINT BIT(TIF_SYSCALL_TRACEPOINT) |
| |
| #endif /* _ASM_THREAD_INFO_H */ |