/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _ASM_CSKY_THREAD_INFO_H
#define _ASM_CSKY_THREAD_INFO_H

#ifndef __ASSEMBLER__

#include <asm/types.h>
#include <asm/page.h>
#include <asm/processor.h>
#include <abi/switch_context.h>

struct thread_info {
        struct task_struct      *task;
        void                    *dump_exec_domain;
        unsigned long           flags;
        int                     preempt_count;
        unsigned long           tp_value;
        struct restart_block    restart_block;
        struct pt_regs          *regs;
        unsigned int            cpu;
};

#define INIT_THREAD_INFO(tsk)                   \
{                                               \
        .task           = &tsk,                 \
        .preempt_count  = INIT_PREEMPT_COUNT,   \
        .cpu            = 0,                    \
        .restart_block = {                      \
                .fn = do_no_restart_syscall,    \
        },                                      \
}

#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)

#define thread_saved_fp(tsk) \
        ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r8))

#define thread_saved_sp(tsk) \
        ((unsigned long)(tsk->thread.sp))

#define thread_saved_lr(tsk) \
        ((unsigned long)(((struct switch_stack *)(tsk->thread.sp))->r15))

static inline struct thread_info *current_thread_info(void)
{
        unsigned long sp;

        asm volatile("mov %0, sp\n":"=r"(sp));

        return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
}

#endif /* !__ASSEMBLER__ */

#define TIF_SIGPENDING          0       /* signal pending */
#define TIF_NOTIFY_RESUME       1       /* callback before returning to user */
#define TIF_NEED_RESCHED        2       /* rescheduling necessary */
#define TIF_UPROBE              3       /* uprobe breakpoint or singlestep */
#define TIF_SYSCALL_TRACE       4       /* syscall trace active */
#define TIF_SYSCALL_TRACEPOINT  5       /* syscall tracepoint instrumentation */
#define TIF_SYSCALL_AUDIT       6       /* syscall auditing */
#define TIF_NOTIFY_SIGNAL       7       /* signal notifications exist */
#define TIF_POLLING_NRFLAG      16      /* poll_idle() is TIF_NEED_RESCHED */
#define TIF_MEMDIE              18      /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK     20      /* restore signal mask in do_signal() */
#define TIF_SECCOMP             21      /* secure computing */

#define _TIF_SIGPENDING         (1 << TIF_SIGPENDING)
#define _TIF_NOTIFY_RESUME      (1 << TIF_NOTIFY_RESUME)
#define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
#define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_SYSCALL_AUDIT      (1 << TIF_SYSCALL_AUDIT)
#define _TIF_NOTIFY_SIGNAL      (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_UPROBE             (1 << TIF_UPROBE)
#define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
#define _TIF_MEMDIE             (1 << TIF_MEMDIE)
#define _TIF_RESTORE_SIGMASK    (1 << TIF_RESTORE_SIGMASK)
#define _TIF_SECCOMP            (1 << TIF_SECCOMP)

#define _TIF_WORK_MASK          (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
                                 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
                                 _TIF_NOTIFY_SIGNAL)

#define _TIF_SYSCALL_WORK       (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
                                 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)

#endif  /* _ASM_CSKY_THREAD_INFO_H */