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
13 struct 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
45 static 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 /* !__ASSEMBLY__ */
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 */
90
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