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125 lines
3.8 KiB
125 lines
3.8 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Based on arch/arm/include/asm/thread_info.h |
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* |
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* Copyright (C) 2002 Russell King. |
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* Copyright (C) 2012 ARM Ltd. |
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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/compiler.h> |
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#ifndef __ASSEMBLY__ |
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struct task_struct; |
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#include <asm/memory.h> |
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#include <asm/stack_pointer.h> |
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#include <asm/types.h> |
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/* |
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* low level task data that entry.S needs immediate access to. |
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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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#ifdef CONFIG_ARM64_SW_TTBR0_PAN |
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u64 ttbr0; /* saved TTBR0_EL1 */ |
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#endif |
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union { |
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u64 preempt_count; /* 0 => preemptible, <0 => bug */ |
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struct { |
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#ifdef CONFIG_CPU_BIG_ENDIAN |
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u32 need_resched; |
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u32 count; |
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#else |
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u32 count; |
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u32 need_resched; |
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#endif |
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} preempt; |
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}; |
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#ifdef CONFIG_SHADOW_CALL_STACK |
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void *scs_base; |
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void *scs_sp; |
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#endif |
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}; |
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#define thread_saved_pc(tsk) \ |
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((unsigned long)(tsk->thread.cpu_context.pc)) |
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#define thread_saved_sp(tsk) \ |
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((unsigned long)(tsk->thread.cpu_context.sp)) |
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#define thread_saved_fp(tsk) \ |
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((unsigned long)(tsk->thread.cpu_context.fp)) |
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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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void arch_release_task_struct(struct task_struct *tsk); |
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int arch_dup_task_struct(struct task_struct *dst, |
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struct task_struct *src); |
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#endif |
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#define TIF_SIGPENDING 0 /* signal pending */ |
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#define TIF_NEED_RESCHED 1 /* rescheduling necessary */ |
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#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */ |
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#define TIF_FOREIGN_FPSTATE 3 /* CPU's FP state is not current's */ |
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#define TIF_UPROBE 4 /* uprobe breakpoint or singlestep */ |
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#define TIF_MTE_ASYNC_FAULT 5 /* MTE Asynchronous Tag Check Fault */ |
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#define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */ |
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#define TIF_SYSCALL_TRACE 8 /* syscall trace active */ |
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#define TIF_SYSCALL_AUDIT 9 /* syscall auditing */ |
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#define TIF_SYSCALL_TRACEPOINT 10 /* syscall tracepoint for ftrace */ |
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#define TIF_SECCOMP 11 /* syscall secure computing */ |
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#define TIF_SYSCALL_EMU 12 /* syscall emulation active */ |
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#define TIF_MEMDIE 18 /* is terminating due to OOM killer */ |
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#define TIF_FREEZE 19 |
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#define TIF_RESTORE_SIGMASK 20 |
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#define TIF_SINGLESTEP 21 |
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#define TIF_32BIT 22 /* 32bit process */ |
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#define TIF_SVE 23 /* Scalable Vector Extension in use */ |
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#define TIF_SVE_VL_INHERIT 24 /* Inherit sve_vl_onexec across exec */ |
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#define TIF_SSBD 25 /* Wants SSB mitigation */ |
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#define TIF_TAGGED_ADDR 26 /* Allow tagged user addresses */ |
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#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) |
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#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) |
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#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) |
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#define _TIF_FOREIGN_FPSTATE (1 << TIF_FOREIGN_FPSTATE) |
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#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) |
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#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) |
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#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) |
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#define _TIF_SECCOMP (1 << TIF_SECCOMP) |
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#define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU) |
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#define _TIF_UPROBE (1 << TIF_UPROBE) |
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#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) |
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#define _TIF_32BIT (1 << TIF_32BIT) |
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#define _TIF_SVE (1 << TIF_SVE) |
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#define _TIF_MTE_ASYNC_FAULT (1 << TIF_MTE_ASYNC_FAULT) |
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#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) |
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#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \ |
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_TIF_NOTIFY_RESUME | _TIF_FOREIGN_FPSTATE | \ |
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_TIF_UPROBE | _TIF_MTE_ASYNC_FAULT | \ |
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_TIF_NOTIFY_SIGNAL) |
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#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ |
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_TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \ |
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_TIF_SYSCALL_EMU) |
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#ifdef CONFIG_SHADOW_CALL_STACK |
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#define INIT_SCS \ |
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.scs_base = init_shadow_call_stack, \ |
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.scs_sp = init_shadow_call_stack, |
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#else |
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#define INIT_SCS |
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#endif |
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#define INIT_THREAD_INFO(tsk) \ |
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{ \ |
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.flags = _TIF_FOREIGN_FPSTATE, \ |
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.preempt_count = INIT_PREEMPT_COUNT, \ |
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INIT_SCS \ |
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} |
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#endif /* __ASM_THREAD_INFO_H */
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