124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/*
|
|
* Based on arch/arm/include/asm/thread_info.h
|
|
*
|
|
* Copyright (C) 2002 Russell King.
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef __ASM_THREAD_INFO_H
|
|
#define __ASM_THREAD_INFO_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
struct task_struct;
|
|
|
|
#include <asm/memory.h>
|
|
#include <asm/stack_pointer.h>
|
|
#include <asm/types.h>
|
|
|
|
typedef unsigned long mm_segment_t;
|
|
|
|
/*
|
|
* low level task data that entry.S needs immediate access to.
|
|
*/
|
|
struct thread_info {
|
|
unsigned long flags; /* low level flags */
|
|
mm_segment_t addr_limit; /* address limit */
|
|
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
|
|
u64 ttbr0; /* saved TTBR0_EL1 */
|
|
#endif
|
|
int preempt_count; /* 0 => preemptable, <0 => bug */
|
|
};
|
|
|
|
#define INIT_THREAD_INFO(tsk) \
|
|
{ \
|
|
.preempt_count = INIT_PREEMPT_COUNT, \
|
|
.addr_limit = KERNEL_DS, \
|
|
}
|
|
|
|
#define init_stack (init_thread_union.stack)
|
|
|
|
#define thread_saved_pc(tsk) \
|
|
((unsigned long)(tsk->thread.cpu_context.pc))
|
|
#define thread_saved_sp(tsk) \
|
|
((unsigned long)(tsk->thread.cpu_context.sp))
|
|
#define thread_saved_fp(tsk) \
|
|
((unsigned long)(tsk->thread.cpu_context.fp))
|
|
|
|
void arch_setup_new_exec(void);
|
|
#define arch_setup_new_exec arch_setup_new_exec
|
|
|
|
void arch_release_task_struct(struct task_struct *tsk);
|
|
|
|
#endif
|
|
|
|
/*
|
|
* thread information flags:
|
|
* TIF_SYSCALL_TRACE - syscall trace active
|
|
* TIF_SYSCALL_TRACEPOINT - syscall tracepoint for ftrace
|
|
* TIF_SYSCALL_AUDIT - syscall auditing
|
|
* TIF_SECOMP - syscall secure computing
|
|
* TIF_SIGPENDING - signal pending
|
|
* TIF_NEED_RESCHED - rescheduling necessary
|
|
* TIF_NOTIFY_RESUME - callback before returning to user
|
|
* TIF_USEDFPU - FPU was used by this task this quantum (SMP)
|
|
*/
|
|
#define TIF_SIGPENDING 0
|
|
#define TIF_NEED_RESCHED 1
|
|
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
|
|
#define TIF_FOREIGN_FPSTATE 3 /* CPU's FP state is not current's */
|
|
#define TIF_UPROBE 4 /* uprobe breakpoint or singlestep */
|
|
#define TIF_FSCHECK 5 /* Check FS is USER_DS on return */
|
|
#define TIF_NOHZ 7
|
|
#define TIF_SYSCALL_TRACE 8
|
|
#define TIF_SYSCALL_AUDIT 9
|
|
#define TIF_SYSCALL_TRACEPOINT 10
|
|
#define TIF_SECCOMP 11
|
|
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
|
|
#define TIF_FREEZE 19
|
|
#define TIF_RESTORE_SIGMASK 20
|
|
#define TIF_SINGLESTEP 21
|
|
#define TIF_32BIT 22 /* 32bit process */
|
|
#define TIF_SVE 23 /* Scalable Vector Extension in use */
|
|
#define TIF_SVE_VL_INHERIT 24 /* Inherit sve_vl_onexec across exec */
|
|
|
|
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
|
|
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
|
|
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
|
|
#define _TIF_FOREIGN_FPSTATE (1 << TIF_FOREIGN_FPSTATE)
|
|
#define _TIF_NOHZ (1 << TIF_NOHZ)
|
|
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
|
|
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
|
|
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
|
|
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
|
|
#define _TIF_UPROBE (1 << TIF_UPROBE)
|
|
#define _TIF_FSCHECK (1 << TIF_FSCHECK)
|
|
#define _TIF_32BIT (1 << TIF_32BIT)
|
|
#define _TIF_SVE (1 << TIF_SVE)
|
|
|
|
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
|
|
_TIF_NOTIFY_RESUME | _TIF_FOREIGN_FPSTATE | \
|
|
_TIF_UPROBE | _TIF_FSCHECK)
|
|
|
|
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
|
|
_TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \
|
|
_TIF_NOHZ)
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* __ASM_THREAD_INFO_H */
|