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
9 struct 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 */
86
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