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92 lines
3.1 KiB
92 lines
3.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_PARISC_THREAD_INFO_H |
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#define _ASM_PARISC_THREAD_INFO_H |
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#ifdef __KERNEL__ |
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#ifndef __ASSEMBLY__ |
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#include <asm/processor.h> |
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#include <asm/special_insns.h> |
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struct thread_info { |
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struct task_struct *task; /* main task structure */ |
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unsigned long flags; /* thread_info flags (see TIF_*) */ |
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__u32 cpu; /* current CPU */ |
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int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */ |
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}; |
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#define INIT_THREAD_INFO(tsk) \ |
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{ \ |
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.task = &tsk, \ |
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.flags = 0, \ |
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.cpu = 0, \ |
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.preempt_count = INIT_PREEMPT_COUNT, \ |
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} |
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/* how to get the thread information struct from C */ |
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#define current_thread_info() ((struct thread_info *)mfctl(30)) |
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#endif /* !__ASSEMBLY */ |
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/* thread information allocation */ |
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#ifdef CONFIG_IRQSTACKS |
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#define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */ |
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#else |
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#define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */ |
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#endif |
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/* Be sure to hunt all references to this down when you change the size of |
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* the kernel stack */ |
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#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) |
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#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER) |
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/* |
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* thread information flags |
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*/ |
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#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ |
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#define TIF_SIGPENDING 1 /* signal pending */ |
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#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ |
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#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */ |
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#define TIF_32BIT 4 /* 32 bit binary */ |
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#define TIF_MEMDIE 5 /* is terminating due to OOM killer */ |
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#define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */ |
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#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ |
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#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */ |
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#define TIF_SINGLESTEP 9 /* single stepping? */ |
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#define TIF_BLOCKSTEP 10 /* branch stepping? */ |
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#define TIF_SECCOMP 11 /* secure computing */ |
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#define TIF_SYSCALL_TRACEPOINT 12 /* syscall tracepoint instrumentation */ |
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#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) |
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#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) |
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#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) |
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#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) |
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#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) |
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#define _TIF_32BIT (1 << TIF_32BIT) |
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#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) |
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#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) |
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#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) |
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#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP) |
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#define _TIF_SECCOMP (1 << TIF_SECCOMP) |
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#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) |
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#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \ |
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_TIF_NEED_RESCHED | _TIF_NOTIFY_SIGNAL) |
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#define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ |
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_TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \ |
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_TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) |
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#ifdef CONFIG_64BIT |
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# ifdef CONFIG_COMPAT |
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# define is_32bit_task() (test_thread_flag(TIF_32BIT)) |
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# else |
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# define is_32bit_task() (0) |
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# endif |
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#else |
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# define is_32bit_task() (1) |
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#endif |
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#endif /* __KERNEL__ */ |
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#endif /* _ASM_PARISC_THREAD_INFO_H */
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