LXR linux/arch/csky/include/asm/thread

   1/* SPDX-License-Identifier: GPL-2.0 */
   2// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
   3
   4#ifndef _ASM_CSKY_THREAD_INFO_H
   5#define _ASM_CSKY_THREAD_INFO_H
   6
   7#ifndef __ASSEMBLY__
   8
   9#include <linux/version.h>
  10#include <asm/types.h>
  11#include <asm/page.h>
  12#include <asm/processor.h>
  13#include <abi/switch_context.h>
  14
  15struct thread_info {
  16        struct task_struct      *task;
  17        void                    *dump_exec_domain;
  18        unsigned long           flags;
  19        int                     preempt_count;
  20        unsigned long           tp_value;
  21        mm_segment_t            addr_limit;
  22        struct restart_block    restart_block;
  23        struct pt_regs          *regs;
  24        unsigned int            cpu;
  25};
  26
  27#define INIT_THREAD_INFO(tsk)                   \
  28{                                               \
  29        .task           = &tsk,                 \
  30        .preempt_count  = INIT_PREEMPT_COUNT,   \
  31        .addr_limit     = KERNEL_DS,            \
  32        .cpu            = 0,                    \
  33        .restart_block = {                      \
  34                .fn = do_no_restart_syscall,    \
  35        },                                      \
  36}
  37
  38#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
  39
  40#define thread_saved_fp(tsk) \
  41        ((unsigned long)(((struct switch_stack *)(tsk->thread.ksp))->r8))
  42
  43static inline struct thread_info *current_thread_info(void)
  44{
  45        unsigned long sp;
  46
  47        asm volatile("mov %0, sp\n":"=r"(sp));
  48
  49        return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
  50}
  51
  52#endif /* !__ASSEMBLY__ */
  53
  54#define TIF_SIGPENDING          0       /* signal pending */
  55#define TIF_NOTIFY_RESUME       1       /* callback before returning to user */
  56#define TIF_NEED_RESCHED        2       /* rescheduling necessary */
  57#define TIF_SYSCALL_TRACE       3       /* syscall trace active */
  58#define TIF_SYSCALL_TRACEPOINT  4       /* syscall tracepoint instrumentation */
  59#define TIF_SYSCALL_AUDIT       5       /* syscall auditing */
  60#define TIF_POLLING_NRFLAG      16      /* poll_idle() is TIF_NEED_RESCHED */
  61#define TIF_MEMDIE              18      /* is terminating due to OOM killer */
  62#define TIF_RESTORE_SIGMASK     20      /* restore signal mask in do_signal() */
  63#define TIF_SECCOMP             21      /* secure computing */
  64
  65#define _TIF_SIGPENDING         (1 << TIF_SIGPENDING)
  66#define _TIF_NOTIFY_RESUME      (1 << TIF_NOTIFY_RESUME)
  67#define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
  68#define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
  69#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
  70#define _TIF_SYSCALL_AUDIT      (1 << TIF_SYSCALL_AUDIT)
  71#define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
  72#define _TIF_MEMDIE             (1 << TIF_MEMDIE)
  73#define _TIF_RESTORE_SIGMASK    (1 << TIF_RESTORE_SIGMASK)
  74#define _TIF_SECCOMP            (1 << TIF_SECCOMP)
  75
  76#endif  /* _ASM_CSKY_THREAD_INFO_H */
  77