WIP FPC-III support
[linux/fpc-iii.git] / arch / parisc / include / asm / thread_info.h
blob0bd38a972ceab5fe577068c24f7412d9c2490535
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_PARISC_THREAD_INFO_H
3 #define _ASM_PARISC_THREAD_INFO_H
5 #ifdef __KERNEL__
7 #ifndef __ASSEMBLY__
8 #include <asm/processor.h>
9 #include <asm/special_insns.h>
11 struct thread_info {
12 struct task_struct *task; /* main task structure */
13 unsigned long flags; /* thread_info flags (see TIF_*) */
14 mm_segment_t addr_limit; /* user-level address space limit */
15 __u32 cpu; /* current CPU */
16 int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */
19 #define INIT_THREAD_INFO(tsk) \
20 { \
21 .task = &tsk, \
22 .flags = 0, \
23 .cpu = 0, \
24 .addr_limit = KERNEL_DS, \
25 .preempt_count = INIT_PREEMPT_COUNT, \
28 /* how to get the thread information struct from C */
29 #define current_thread_info() ((struct thread_info *)mfctl(30))
31 #endif /* !__ASSEMBLY */
33 /* thread information allocation */
35 #ifdef CONFIG_IRQSTACKS
36 #define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */
37 #else
38 #define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */
39 #endif
41 /* Be sure to hunt all references to this down when you change the size of
42 * the kernel stack */
43 #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
44 #define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER)
47 * thread information flags
49 #define TIF_SYSCALL_TRACE 0 /* syscall trace active */
50 #define TIF_SIGPENDING 1 /* signal pending */
51 #define TIF_NEED_RESCHED 2 /* rescheduling necessary */
52 #define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
53 #define TIF_32BIT 4 /* 32 bit binary */
54 #define TIF_MEMDIE 5 /* is terminating due to OOM killer */
55 #define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */
56 #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
57 #define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
58 #define TIF_SINGLESTEP 9 /* single stepping? */
59 #define TIF_BLOCKSTEP 10 /* branch stepping? */
60 #define TIF_SECCOMP 11 /* secure computing */
61 #define TIF_SYSCALL_TRACEPOINT 12 /* syscall tracepoint instrumentation */
63 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
64 #define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
65 #define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
66 #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
67 #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
68 #define _TIF_32BIT (1 << TIF_32BIT)
69 #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
70 #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
71 #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
72 #define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
73 #define _TIF_SECCOMP (1 << TIF_SECCOMP)
74 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
76 #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
77 _TIF_NEED_RESCHED | _TIF_NOTIFY_SIGNAL)
78 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
79 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \
80 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
82 #ifdef CONFIG_64BIT
83 # ifdef CONFIG_COMPAT
84 # define is_32bit_task() (test_thread_flag(TIF_32BIT))
85 # else
86 # define is_32bit_task() (0)
87 # endif
88 #else
89 # define is_32bit_task() (1)
90 #endif
92 #endif /* __KERNEL__ */
94 #endif /* _ASM_PARISC_THREAD_INFO_H */