Linux kernel mirror (for testing)
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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 __ASSEMBLY__
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 mm_segment_t addr_limit;
20 struct restart_block restart_block;
21 struct pt_regs *regs;
22 unsigned int cpu;
23};
24
25#define INIT_THREAD_INFO(tsk) \
26{ \
27 .task = &tsk, \
28 .preempt_count = INIT_PREEMPT_COUNT, \
29 .addr_limit = KERNEL_DS, \
30 .cpu = 0, \
31 .restart_block = { \
32 .fn = do_no_restart_syscall, \
33 }, \
34}
35
36#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
37
38#define thread_saved_fp(tsk) \
39 ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r8))
40
41#define thread_saved_sp(tsk) \
42 ((unsigned long)(tsk->thread.sp))
43
44#define thread_saved_lr(tsk) \
45 ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r15))
46
47static inline struct thread_info *current_thread_info(void)
48{
49 unsigned long sp;
50
51 asm volatile("mov %0, sp\n":"=r"(sp));
52
53 return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
54}
55
56#endif /* !__ASSEMBLY__ */
57
58#define TIF_SIGPENDING 0 /* signal pending */
59#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
60#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
61#define TIF_UPROBE 3 /* uprobe breakpoint or singlestep */
62#define TIF_SYSCALL_TRACE 4 /* syscall trace active */
63#define TIF_SYSCALL_TRACEPOINT 5 /* syscall tracepoint instrumentation */
64#define TIF_SYSCALL_AUDIT 6 /* syscall auditing */
65#define TIF_NOTIFY_SIGNAL 7 /* signal notifications exist */
66#define TIF_POLLING_NRFLAG 16 /* poll_idle() is TIF_NEED_RESCHED */
67#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
68#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
69#define TIF_SECCOMP 21 /* secure computing */
70
71#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
72#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
73#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
74#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
75#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
76#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
77#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
78#define _TIF_UPROBE (1 << TIF_UPROBE)
79#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
80#define _TIF_MEMDIE (1 << TIF_MEMDIE)
81#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
82#define _TIF_SECCOMP (1 << TIF_SECCOMP)
83
84#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
85 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
86 _TIF_NOTIFY_SIGNAL)
87
88#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
89 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
90
91#endif /* _ASM_CSKY_THREAD_INFO_H */