thread_info.h (2977B)
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 9struct 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 */