arch/parisc/include/asm/thread_info.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_PARISC_THREAD_INFO_H
   3 #define _ASM_PARISC_THREAD_INFO_H
   4
   5 #ifndef __ASSEMBLY__
   6 #include <asm/processor.h>
   7 #include <asm/special_insns.h>
   8
   9 struct thread_info {
  10         unsigned long flags;            /* thread_info flags (see TIF_*) */
  11         int preempt_count;              /* 0=premptable, <0=BUG; will also serve as bh-counter */
  12 #ifdef CONFIG_SMP
  13         unsigned int cpu;
  14 #endif
  15 };
  16
  17 #define INIT_THREAD_INFO(tsk)                   \
  18 {                                               \
  19         .flags          = 0,                    \
  20         .preempt_count  = INIT_PREEMPT_COUNT,   \
  21 }
  22
  23 #endif /* !__ASSEMBLY */
  24
  25 /* thread information allocation */
  26
  27 #ifdef CONFIG_IRQSTACKS
  28 #define THREAD_SIZE_ORDER       2 /* PA-RISC requires at least 16k stack */
  29 #else
  30 #define THREAD_SIZE_ORDER       3 /* PA-RISC requires at least 32k stack */
  31 #endif
  32
  33 /* Be sure to hunt all references to this down when you change the size of
  34  * the kernel stack */
  35 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
  36 #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
  37
  38 /*
  39  * thread information flags
  40  */
  41 #define TIF_SYSCALL_TRACE       0       /* syscall trace active */
  42 #define TIF_SIGPENDING          1       /* signal pending */
  43 #define TIF_NEED_RESCHED        2       /* rescheduling necessary */
  44 #define TIF_POLLING_NRFLAG      3       /* true if poll_idle() is polling TIF_NEED_RESCHED */
  45 #define TIF_32BIT               4       /* 32 bit binary */
  46 #define TIF_MEMDIE              5       /* is terminating due to OOM killer */
  47 #define TIF_NOTIFY_SIGNAL       6       /* signal notifications exist */
  48 #define TIF_SYSCALL_AUDIT       7       /* syscall auditing active */
  49 #define TIF_NOTIFY_RESUME       8       /* callback before returning to user */
  50 #define TIF_SINGLESTEP          9       /* single stepping? */
  51 #define TIF_BLOCKSTEP           10      /* branch stepping? */
  52 #define TIF_SECCOMP             11      /* secure computing */
  53 #define TIF_SYSCALL_TRACEPOINT  12      /* syscall tracepoint instrumentation */
  54 #define TIF_NONBLOCK_WARNING    13      /* warned about wrong O_NONBLOCK usage */
  55
  56 #define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
  57 #define _TIF_SIGPENDING         (1 << TIF_SIGPENDING)
  58 #define _TIF_NOTIFY_SIGNAL      (1 << TIF_NOTIFY_SIGNAL)
  59 #define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
  60 #define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
  61 #define _TIF_32BIT              (1 << TIF_32BIT)
  62 #define _TIF_SYSCALL_AUDIT      (1 << TIF_SYSCALL_AUDIT)
  63 #define _TIF_NOTIFY_RESUME      (1 << TIF_NOTIFY_RESUME)
  64 #define _TIF_SINGLESTEP         (1 << TIF_SINGLESTEP)
  65 #define _TIF_BLOCKSTEP          (1 << TIF_BLOCKSTEP)
  66 #define _TIF_SECCOMP            (1 << TIF_SECCOMP)
  67 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
  68
  69 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
  70                                  _TIF_NEED_RESCHED | _TIF_NOTIFY_SIGNAL)
  71 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
  72                                  _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \
  73                                  _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
  74
  75 #ifdef CONFIG_64BIT
  76 # ifdef CONFIG_COMPAT
  77 #  define is_32bit_task()       (test_thread_flag(TIF_32BIT))
  78 # else
  79 #  define is_32bit_task()       (0)
  80 # endif
  81 #else
  82 # define is_32bit_task()        (1)
  83 #endif
  84
  85 #endif /* _ASM_PARISC_THREAD_INFO_H */