1/*
2 * Copyright (C) 2017 SiFive
3 *
4 *   This program is free software; you can redistribute it and/or
5 *   modify it under the terms of the GNU General Public License
6 *   as published by the Free Software Foundation, version 2.
7 *
8 *   This program is distributed in the hope that it will be useful,
9 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
10 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 *   GNU General Public License for more details.
12 */
13
14#include <linux/linkage.h>
15#include <asm/unistd.h>
16#include <asm/vdso-syscalls.h>
17
18	.text
19/* int __vdso_flush_icache(void *start, void *end, unsigned long flags); */
20ENTRY(__vdso_flush_icache)
21	.cfi_startproc
22#ifdef CONFIG_SMP
23	li a7, __NR_riscv_flush_icache
24	ecall
25#else
26	fence.i
27	li a0, 0
28#endif
29	ret
30	.cfi_endproc
31ENDPROC(__vdso_flush_icache)
32