/* SPDX-License-Identifier: GPL-2.0 */ // Copyright (C) 2005-2017 Andes Technology Corporation #ifndef __ASM_NDS32_THREAD_INFO_H #define __ASM_NDS32_THREAD_INFO_H #ifdef __KERNEL__ #define THREAD_SIZE_ORDER (1) #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #ifndef __ASSEMBLY__ struct task_struct; #include <asm/ptrace.h> #include <asm/types.h> typedef unsigned long mm_segment_t; /* * low level task data that entry.S needs immediate access to. * __switch_to() assumes cpu_context follows immediately after cpu_domain. */ struct thread_info { unsigned long flags; /* low level flags */ __s32 preempt_count; /* 0 => preemptable, <0 => bug */ mm_segment_t addr_limit; /* address limit */ }; #define INIT_THREAD_INFO(tsk) \ { \ .preempt_count = INIT_PREEMPT_COUNT, \ .addr_limit = KERNEL_DS, \ } #define thread_saved_pc(tsk) ((unsigned long)(tsk->thread.cpu_context.pc)) #define thread_saved_fp(tsk) ((unsigned long)(tsk->thread.cpu_context.fp)) #endif /* * thread information flags: * TIF_SYSCALL_TRACE - syscall trace active * TIF_SIGPENDING - signal pending * TIF_NEED_RESCHED - rescheduling necessary * TIF_NOTIFY_RESUME - callback before returning to user * TIF_POLLING_NRFLAG - true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_SIGPENDING 1 #define TIF_NEED_RESCHED 2 #define TIF_SINGLESTEP 3 #define TIF_NOTIFY_RESUME 4 /* callback before returning to user */ #define TIF_SYSCALL_TRACE 8 #define TIF_POLLING_NRFLAG 17 #define TIF_MEMDIE 18 #define TIF_FREEZE 19 #define TIF_RESTORE_SIGMASK 20 #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_FREEZE (1 << TIF_FREEZE) #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) /* * Change these and you break ASM code in entry-common.S */ #define _TIF_WORK_MASK 0x000000ff #define _TIF_WORK_SYSCALL_ENTRY (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP) #define _TIF_WORK_SYSCALL_LEAVE (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP) #endif /* __KERNEL__ */ #endif /* __ASM_NDS32_THREAD_INFO_H */