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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2
   3#ifndef _ASM_CSKY_THREAD_INFO_H
   4#define _ASM_CSKY_THREAD_INFO_H
   5
   6#ifndef __ASSEMBLY__
   7
   8#include <asm/types.h>
   9#include <asm/page.h>
  10#include <asm/processor.h>
  11#include <abi/switch_context.h>
  12
  13struct thread_info {
  14        struct task_struct      *task;
  15        void                    *dump_exec_domain;
  16        unsigned long           flags;
  17        int                     preempt_count;
  18        unsigned long           tp_value;
  19        mm_segment_t            addr_limit;
  20        struct restart_block    restart_block;
  21        struct pt_regs          *regs;
  22        unsigned int            cpu;
  23};
  24
  25#define INIT_THREAD_INFO(tsk)                   \
  26{                                               \
  27        .task           = &tsk,                 \
  28        .preempt_count  = INIT_PREEMPT_COUNT,   \
  29        .addr_limit     = KERNEL_DS,            \
  30        .cpu            = 0,                    \
  31        .restart_block = {                      \
  32                .fn = do_no_restart_syscall,    \
  33        },                                      \
  34}
  35
  36#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
  37
  38#define thread_saved_fp(tsk) \
  39        ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r8))
  40
  41#define thread_saved_sp(tsk) \
  42        ((unsigned long)(tsk->thread.sp))
  43
  44#define thread_saved_lr(tsk) \
  45        ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r15))
  46
  47static inline struct thread_info *current_thread_info(void)
  48{
  49        unsigned long sp;
  50
  51        asm volatile("mov %0, sp\n":"=r"(sp));
  52
  53        return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
  54}
  55
  56#endif /* !__ASSEMBLY__ */
  57
  58#define TIF_SIGPENDING          0       /* signal pending */
  59#define TIF_NOTIFY_RESUME       1       /* callback before returning to user */
  60#define TIF_NEED_RESCHED        2       /* rescheduling necessary */
  61#define TIF_UPROBE              3       /* uprobe breakpoint or singlestep */
  62#define TIF_SYSCALL_TRACE       4       /* syscall trace active */
  63#define TIF_SYSCALL_TRACEPOINT  5       /* syscall tracepoint instrumentation */
  64#define TIF_SYSCALL_AUDIT       6       /* syscall auditing */
  65#define TIF_NOTIFY_SIGNAL       7       /* signal notifications exist */
  66#define TIF_POLLING_NRFLAG      16      /* poll_idle() is TIF_NEED_RESCHED */
  67#define TIF_MEMDIE              18      /* is terminating due to OOM killer */
  68#define TIF_RESTORE_SIGMASK     20      /* restore signal mask in do_signal() */
  69#define TIF_SECCOMP             21      /* secure computing */
  70
  71#define _TIF_SIGPENDING         (1 << TIF_SIGPENDING)
  72#define _TIF_NOTIFY_RESUME      (1 << TIF_NOTIFY_RESUME)
  73#define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
  74#define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
  75#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
  76#define _TIF_SYSCALL_AUDIT      (1 << TIF_SYSCALL_AUDIT)
  77#define _TIF_NOTIFY_SIGNAL      (1 << TIF_NOTIFY_SIGNAL)
  78#define _TIF_UPROBE             (1 << TIF_UPROBE)
  79#define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
  80#define _TIF_MEMDIE             (1 << TIF_MEMDIE)
  81#define _TIF_RESTORE_SIGMASK    (1 << TIF_RESTORE_SIGMASK)
  82#define _TIF_SECCOMP            (1 << TIF_SECCOMP)
  83
  84#define _TIF_WORK_MASK          (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
  85                                 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
  86                                 _TIF_NOTIFY_SIGNAL)
  87
  88#define _TIF_SYSCALL_WORK       (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
  89                                 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
  90
  91#endif  /* _ASM_CSKY_THREAD_INFO_H */
  92