1*4859bfcaSGuo Ren // SPDX-License-Identifier: GPL-2.0
2*4859bfcaSGuo Ren // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
3*4859bfcaSGuo Ren
4*4859bfcaSGuo Ren #include <linux/syscalls.h>
5*4859bfcaSGuo Ren
SYSCALL_DEFINE1(set_thread_area,unsigned long,addr)6*4859bfcaSGuo Ren SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
7*4859bfcaSGuo Ren {
8*4859bfcaSGuo Ren struct thread_info *ti = task_thread_info(current);
9*4859bfcaSGuo Ren struct pt_regs *reg = current_pt_regs();
10*4859bfcaSGuo Ren
11*4859bfcaSGuo Ren reg->tls = addr;
12*4859bfcaSGuo Ren ti->tp_value = addr;
13*4859bfcaSGuo Ren
14*4859bfcaSGuo Ren return 0;
15*4859bfcaSGuo Ren }
16*4859bfcaSGuo Ren
SYSCALL_DEFINE6(mmap2,unsigned long,addr,unsigned long,len,unsigned long,prot,unsigned long,flags,unsigned long,fd,off_t,offset)17*4859bfcaSGuo Ren SYSCALL_DEFINE6(mmap2,
18*4859bfcaSGuo Ren unsigned long, addr,
19*4859bfcaSGuo Ren unsigned long, len,
20*4859bfcaSGuo Ren unsigned long, prot,
21*4859bfcaSGuo Ren unsigned long, flags,
22*4859bfcaSGuo Ren unsigned long, fd,
23*4859bfcaSGuo Ren off_t, offset)
24*4859bfcaSGuo Ren {
25*4859bfcaSGuo Ren if (unlikely(offset & (~PAGE_MASK >> 12)))
26*4859bfcaSGuo Ren return -EINVAL;
27*4859bfcaSGuo Ren
28*4859bfcaSGuo Ren return ksys_mmap_pgoff(addr, len, prot, flags, fd,
29*4859bfcaSGuo Ren offset >> (PAGE_SHIFT - 12));
30*4859bfcaSGuo Ren }
31*4859bfcaSGuo Ren
32*4859bfcaSGuo Ren /*
33*4859bfcaSGuo Ren * for abiv1 the 64bits args should be even th, So we need mov the advice
34*4859bfcaSGuo Ren * forward.
35*4859bfcaSGuo Ren */
SYSCALL_DEFINE4(csky_fadvise64_64,int,fd,int,advice,loff_t,offset,loff_t,len)36*4859bfcaSGuo Ren SYSCALL_DEFINE4(csky_fadvise64_64,
37*4859bfcaSGuo Ren int, fd,
38*4859bfcaSGuo Ren int, advice,
39*4859bfcaSGuo Ren loff_t, offset,
40*4859bfcaSGuo Ren loff_t, len)
41*4859bfcaSGuo Ren {
42*4859bfcaSGuo Ren return ksys_fadvise64_64(fd, offset, len, advice);
43*4859bfcaSGuo Ren }
44