1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun // Copyright (C) 2005-2017 Andes Technology Corporation 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #ifndef __ASM_NDS32_THREAD_INFO_H 5*4882a593Smuzhiyun #define __ASM_NDS32_THREAD_INFO_H 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifdef __KERNEL__ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #define THREAD_SIZE_ORDER (1) 10*4882a593Smuzhiyun #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct task_struct; 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #include <asm/ptrace.h> 17*4882a593Smuzhiyun #include <asm/types.h> 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun typedef unsigned long mm_segment_t; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /* 22*4882a593Smuzhiyun * low level task data that entry.S needs immediate access to. 23*4882a593Smuzhiyun * __switch_to() assumes cpu_context follows immediately after cpu_domain. 24*4882a593Smuzhiyun */ 25*4882a593Smuzhiyun struct thread_info { 26*4882a593Smuzhiyun unsigned long flags; /* low level flags */ 27*4882a593Smuzhiyun __s32 preempt_count; /* 0 => preemptable, <0 => bug */ 28*4882a593Smuzhiyun mm_segment_t addr_limit; /* address limit */ 29*4882a593Smuzhiyun }; 30*4882a593Smuzhiyun #define INIT_THREAD_INFO(tsk) \ 31*4882a593Smuzhiyun { \ 32*4882a593Smuzhiyun .preempt_count = INIT_PREEMPT_COUNT, \ 33*4882a593Smuzhiyun .addr_limit = KERNEL_DS, \ 34*4882a593Smuzhiyun } 35*4882a593Smuzhiyun #define thread_saved_pc(tsk) ((unsigned long)(tsk->thread.cpu_context.pc)) 36*4882a593Smuzhiyun #define thread_saved_fp(tsk) ((unsigned long)(tsk->thread.cpu_context.fp)) 37*4882a593Smuzhiyun #endif 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun /* 40*4882a593Smuzhiyun * thread information flags: 41*4882a593Smuzhiyun * TIF_SYSCALL_TRACE - syscall trace active 42*4882a593Smuzhiyun * TIF_SIGPENDING - signal pending 43*4882a593Smuzhiyun * TIF_NEED_RESCHED - rescheduling necessary 44*4882a593Smuzhiyun * TIF_NOTIFY_RESUME - callback before returning to user 45*4882a593Smuzhiyun * TIF_POLLING_NRFLAG - true if poll_idle() is polling TIF_NEED_RESCHED 46*4882a593Smuzhiyun */ 47*4882a593Smuzhiyun #define TIF_SIGPENDING 1 48*4882a593Smuzhiyun #define TIF_NEED_RESCHED 2 49*4882a593Smuzhiyun #define TIF_SINGLESTEP 3 50*4882a593Smuzhiyun #define TIF_NOTIFY_RESUME 4 /* callback before returning to user */ 51*4882a593Smuzhiyun #define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */ 52*4882a593Smuzhiyun #define TIF_SYSCALL_TRACE 8 53*4882a593Smuzhiyun #define TIF_POLLING_NRFLAG 17 54*4882a593Smuzhiyun #define TIF_MEMDIE 18 55*4882a593Smuzhiyun #define TIF_FREEZE 19 56*4882a593Smuzhiyun #define TIF_RESTORE_SIGMASK 20 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) 59*4882a593Smuzhiyun #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) 60*4882a593Smuzhiyun #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) 61*4882a593Smuzhiyun #define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) 62*4882a593Smuzhiyun #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) 63*4882a593Smuzhiyun #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) 64*4882a593Smuzhiyun #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) 65*4882a593Smuzhiyun #define _TIF_FREEZE (1 << TIF_FREEZE) 66*4882a593Smuzhiyun #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun /* 69*4882a593Smuzhiyun * Change these and you break ASM code in entry-common.S 70*4882a593Smuzhiyun */ 71*4882a593Smuzhiyun #define _TIF_WORK_MASK 0x000000ff 72*4882a593Smuzhiyun #define _TIF_WORK_SYSCALL_ENTRY (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP) 73*4882a593Smuzhiyun #define _TIF_WORK_SYSCALL_LEAVE (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP) 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun #endif /* __KERNEL__ */ 76*4882a593Smuzhiyun #endif /* __ASM_NDS32_THREAD_INFO_H */ 77