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1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef _ASM_CSKY_THREAD_INFO_H
4#define _ASM_CSKY_THREAD_INFO_H
5
6#ifndef __ASSEMBLER__
7
8#include <asm/types.h>
9#include <asm/page.h>
10#include <asm/processor.h>
11#include <abi/switch_context.h>
12
13struct thread_info {
14 struct task_struct *task;
15 void *dump_exec_domain;
16 unsigned long flags;
17 int preempt_count;
18 unsigned long tp_value;
19 struct restart_block restart_block;
20 struct pt_regs *regs;
21 unsigned int cpu;
22};
23
24#define INIT_THREAD_INFO(tsk) \
25{ \
26 .task = &tsk, \
27 .preempt_count = INIT_PREEMPT_COUNT, \
28 .cpu = 0, \
29 .restart_block = { \
30 .fn = do_no_restart_syscall, \
31 }, \
32}
33
34#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
35
36#define thread_saved_fp(tsk) \
37 ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r8))
38
39#define thread_saved_sp(tsk) \
40 ((unsigned long)(tsk->thread.sp))
41
42#define thread_saved_lr(tsk) \
43 ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r15))
44
45static inline struct thread_info *current_thread_info(void)
46{
47 unsigned long sp;
48
49 asm volatile("mov %0, sp\n":"=r"(sp));
50
51 return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
52}
53
54#endif /* !__ASSEMBLER__ */
55
56#define TIF_SIGPENDING 0 /* signal pending */
57#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
58#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
59#define TIF_UPROBE 3 /* uprobe breakpoint or singlestep */
60#define TIF_SYSCALL_TRACE 4 /* syscall trace active */
61#define TIF_SYSCALL_TRACEPOINT 5 /* syscall tracepoint instrumentation */
62#define TIF_SYSCALL_AUDIT 6 /* syscall auditing */
63#define TIF_NOTIFY_SIGNAL 7 /* signal notifications exist */
64#define TIF_POLLING_NRFLAG 16 /* poll_idle() is TIF_NEED_RESCHED */
65#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
66#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
67#define TIF_SECCOMP 21 /* secure computing */
68
69#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
70#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
71#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
72#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
73#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
74#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
75#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
76#define _TIF_UPROBE (1 << TIF_UPROBE)
77#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
78#define _TIF_MEMDIE (1 << TIF_MEMDIE)
79#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
80#define _TIF_SECCOMP (1 << TIF_SECCOMP)
81
82#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
83 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
84 _TIF_NOTIFY_SIGNAL)
85
86#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
87 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
88
89#endif /* _ASM_CSKY_THREAD_INFO_H */