1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
3
4 #include <linux/syscalls.h>
5
6 SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
7 {
8 struct thread_info *ti = task_thread_info(current);
9 struct pt_regs *reg = current_pt_regs();
10
11 reg->tls = addr;
12 ti->tp_value = addr;
13
14 return 0;
15 }
16
17 SYSCALL_DEFINE6(mmap2,
18 unsigned long, addr,
19 unsigned long, len,
20 unsigned long, prot,
21 unsigned long, flags,
22 unsigned long, fd,
23 unsigned long, offset)
24 {
25 if (unlikely(offset & (~PAGE_MASK >> 12)))
26 return -EINVAL;
27
28 return ksys_mmap_pgoff(addr, len, prot, flags, fd,
29 offset >> (PAGE_SHIFT - 12));
30 }
31
32 /*
33 * for abiv1 the 64bits args should be even th, So we need mov the advice
34 * forward.
35 */
36 SYSCALL_DEFINE4(csky_fadvise64_64,
37 int, fd,
38 int, advice,
39 loff_t, offset,
40 loff_t, len)
41 {
42 return ksys_fadvise64_64(fd, offset, len, advice);
43 }
44
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