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	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 /* !__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 */