// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.

#include <linux/syscalls.h>

SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
{
        struct thread_info *ti = task_thread_info(current);
        struct pt_regs *reg = current_pt_regs();

        reg->tls = addr;
        ti->tp_value = addr;

        return 0;
}

SYSCALL_DEFINE6(mmap2,
        unsigned long, addr,
        unsigned long, len,
        unsigned long, prot,
        unsigned long, flags,
        unsigned long, fd,
        unsigned long, offset)
{
        if (unlikely(offset & (~PAGE_MASK >> 12)))
                return -EINVAL;

        return ksys_mmap_pgoff(addr, len, prot, flags, fd,
                               offset >> (PAGE_SHIFT - 12));
}

/*
 * for abiv1 the 64bits args should be even th, So we need mov the advice
 * forward.
 */
SYSCALL_DEFINE4(csky_fadvise64_64,
        int, fd,
        int, advice,
        loff_t, offset,
        loff_t, len)
{
        return ksys_fadvise64_64(fd, offset, len, advice);
}