Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_PARISC_THREAD_INFO_H
3#define _ASM_PARISC_THREAD_INFO_H
4
5#ifndef __ASSEMBLY__
6#include <asm/processor.h>
7#include <asm/special_insns.h>
8
9struct thread_info {
10 unsigned long flags; /* thread_info flags (see TIF_*) */
11 int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */
12#ifdef CONFIG_SMP
13 unsigned int cpu;
14#endif
15};
16
17#define INIT_THREAD_INFO(tsk) \
18{ \
19 .flags = 0, \
20 .preempt_count = INIT_PREEMPT_COUNT, \
21}
22
23#endif /* !__ASSEMBLY */
24
25/* thread information allocation */
26
27#ifdef CONFIG_IRQSTACKS
28#define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */
29#else
30#define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */
31#endif
32
33/* Be sure to hunt all references to this down when you change the size of
34 * the kernel stack */
35#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
36#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER)
37
38/*
39 * thread information flags
40 */
41#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
42#define TIF_SIGPENDING 1 /* signal pending */
43#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
44#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
45#define TIF_32BIT 4 /* 32 bit binary */
46#define TIF_MEMDIE 5 /* is terminating due to OOM killer */
47#define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */
48#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
49#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
50#define TIF_SINGLESTEP 9 /* single stepping? */
51#define TIF_BLOCKSTEP 10 /* branch stepping? */
52#define TIF_SECCOMP 11 /* secure computing */
53#define TIF_SYSCALL_TRACEPOINT 12 /* syscall tracepoint instrumentation */
54#define TIF_NONBLOCK_WARNING 13 /* warned about wrong O_NONBLOCK usage */
55
56#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
57#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
58#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
59#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
60#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
61#define _TIF_32BIT (1 << TIF_32BIT)
62#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
63#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
64#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
65#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
66#define _TIF_SECCOMP (1 << TIF_SECCOMP)
67#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
68
69#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
70 _TIF_NEED_RESCHED | _TIF_NOTIFY_SIGNAL)
71#define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
72 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \
73 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
74
75#ifdef CONFIG_64BIT
76# ifdef CONFIG_COMPAT
77# define is_32bit_task() (test_thread_flag(TIF_32BIT))
78# else
79# define is_32bit_task() (0)
80# endif
81#else
82# define is_32bit_task() (1)
83#endif
84
85#endif /* _ASM_PARISC_THREAD_INFO_H */