From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/csky/kernel/syscall.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 arch/csky/kernel/syscall.c (limited to 'arch/csky/kernel/syscall.c') diff --git a/arch/csky/kernel/syscall.c b/arch/csky/kernel/syscall.c new file mode 100644 index 000000000..3d30e58a4 --- /dev/null +++ b/arch/csky/kernel/syscall.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. + +#include + +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, + off_t, 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); +} -- cgit v1.2.3