1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_PARISC_THREAD_INFO_H
3 #define _ASM_PARISC_THREAD_INFO_H
8 #include <asm/processor.h>
9 #include <asm/special_insns.h>
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) \
24 .addr_limit = KERNEL_DS, \
25 .preempt_count = INIT_PREEMPT_COUNT, \
28 #define init_thread_info (init_thread_union.thread_info)
29 #define init_stack (init_thread_union.stack)
31 /* how to get the thread information struct from C */
32 #define current_thread_info() ((struct thread_info *)mfctl(30))
34 #endif /* !__ASSEMBLY */
36 /* thread information allocation */
38 #ifdef CONFIG_IRQSTACKS
39 #define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */
41 #define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */
44 /* Be sure to hunt all references to this down when you change the size of
46 #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
47 #define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER)
50 * thread information flags
52 #define TIF_SYSCALL_TRACE 0 /* syscall trace active */
53 #define TIF_SIGPENDING 1 /* signal pending */
54 #define TIF_NEED_RESCHED 2 /* rescheduling necessary */
55 #define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
56 #define TIF_32BIT 4 /* 32 bit binary */
57 #define TIF_MEMDIE 5 /* is terminating due to OOM killer */
58 #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
59 #define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
60 #define TIF_SINGLESTEP 9 /* single stepping? */
61 #define TIF_BLOCKSTEP 10 /* branch stepping? */
62 #define TIF_SECCOMP 11 /* secure computing */
63 #define TIF_SYSCALL_TRACEPOINT 12 /* syscall tracepoint instrumentation */
65 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
66 #define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
67 #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
68 #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
69 #define _TIF_32BIT (1 << TIF_32BIT)
70 #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
71 #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
72 #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
73 #define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
74 #define _TIF_SECCOMP (1 << TIF_SECCOMP)
75 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
77 #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
79 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
80 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \
81 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
85 # define is_32bit_task() (test_thread_flag(TIF_32BIT))
87 # define is_32bit_task() (0)
90 # define is_32bit_task() (1)
93 #endif /* __KERNEL__ */
95 #endif /* _ASM_PARISC_THREAD_INFO_H */